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". */
45 #define exit __posix_exit
48 #ifdef HAVE_SYS_RESOURCE_H
49 #include <sys/resource.h>
51 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
52 extern int getrusage PARAMS ((int, struct rusage *));
55 /* By default there is no special suffix for executables. */
56 #ifdef EXECUTABLE_SUFFIX
57 #define HAVE_EXECUTABLE_SUFFIX
59 #define EXECUTABLE_SUFFIX ""
62 /* By default, the suffix for object files is ".o". */
64 #define HAVE_OBJECT_SUFFIX
66 #define OBJECT_SUFFIX ".o"
70 /* FIXME: the location independence code for VMS is hairier than this,
71 and hasn't been written. */
77 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
79 #define obstack_chunk_alloc xmalloc
80 #define obstack_chunk_free free
82 #ifndef GET_ENV_PATH_LIST
83 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
86 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
87 #ifndef LIBRARY_PATH_ENV
88 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
92 #define kill(p,s) raise(s)
95 /* If a stage of compilation returns an exit status >= 1,
96 compilation of that file ceases. */
98 #define MIN_FATAL_STATUS 1
100 /* Flag saying to pass the greatest exit code returned by a sub-process
101 to the calling program. */
102 static int pass_exit_codes;
104 /* Flag saying to print the directories gcc will search through looking for
105 programs, libraries, etc. */
107 static int print_search_dirs;
109 /* Flag saying to print the full filename of this file
110 as found through our usual search mechanism. */
112 static const char *print_file_name = NULL;
114 /* As print_file_name, but search for executable file. */
116 static const char *print_prog_name = NULL;
118 /* Flag saying to print the relative path we'd use to
119 find libgcc.a given the current compiler flags. */
121 static int print_multi_directory;
123 /* Flag saying to print the list of subdirectories and
124 compiler flags used to select them in a standard form. */
126 static int print_multi_lib;
128 /* Flag saying to print the command line options understood by gcc and its
131 static int print_help_list;
133 /* Flag indicating whether we should print the command and arguments */
135 static int verbose_flag;
137 /* Flag indicating whether we should report subprocess execution times
138 (if this is supported by the system - see pexecute.c). */
140 static int report_times;
142 /* Nonzero means write "temp" files in source directory
143 and use the source file's name in them, and don't delete them. */
145 static int save_temps_flag;
147 /* The compiler version. */
149 static const char *compiler_version;
151 /* The target version specified with -V */
153 static const char *spec_version = DEFAULT_TARGET_VERSION;
155 /* The target machine specified with -b. */
157 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
159 /* Nonzero if cross-compiling.
160 When -b is used, the value comes from the `specs' file. */
163 static const char *cross_compile = "1";
165 static const char *cross_compile = "0";
168 /* The number of errors that have occurred; the link phase will not be
169 run if this is non-zero. */
170 static int error_count = 0;
172 /* Greatest exit code of sub-processes that has been encountered up to
174 static int greatest_status = 1;
176 /* This is the obstack which we use to allocate many strings. */
178 static struct obstack obstack;
180 /* This is the obstack to build an environment variable to pass to
181 collect2 that describes all of the relevant switches of what to
182 pass the compiler in building the list of pointers to constructors
185 static struct obstack collect_obstack;
187 /* These structs are used to collect resource usage information for
189 #ifdef HAVE_GETRUSAGE
190 static struct rusage rus, prus;
193 /* Forward declaration for prototypes. */
196 static void init_spec PARAMS ((void));
198 static char **split_directories PARAMS ((const char *, int *));
199 static void free_split_directories PARAMS ((char **));
200 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
202 static void store_arg PARAMS ((const char *, int, int));
203 static char *load_specs PARAMS ((const char *));
204 static void read_specs PARAMS ((const char *, int));
205 static void set_spec PARAMS ((const char *, const char *));
206 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
207 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
208 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
209 static int access_check PARAMS ((const char *, int));
210 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
211 static void add_prefix PARAMS ((struct path_prefix *, const char *,
212 const char *, int, int, int *));
213 static void translate_options PARAMS ((int *, const char ***));
214 static char *skip_whitespace PARAMS ((char *));
215 static void record_temp_file PARAMS ((const char *, int, int));
216 static void delete_if_ordinary PARAMS ((const char *));
217 static void delete_temp_files PARAMS ((void));
218 static void delete_failure_queue PARAMS ((void));
219 static void clear_failure_queue PARAMS ((void));
220 static int check_live_switch PARAMS ((int, int));
221 static const char *handle_braces PARAMS ((const char *));
222 static char *save_string PARAMS ((const char *, int));
223 static int do_spec_1 PARAMS ((const char *, int, const char *));
224 static const char *find_file PARAMS ((const char *));
225 static int is_directory PARAMS ((const char *, const char *, int));
226 static void validate_switches PARAMS ((const char *));
227 static void validate_all_switches PARAMS ((void));
228 static void give_switch PARAMS ((int, int, int));
229 static int used_arg PARAMS ((const char *, int));
230 static int default_arg PARAMS ((const char *, int));
231 static void set_multilib_dir PARAMS ((void));
232 static void print_multilib_info PARAMS ((void));
233 static void pfatal_with_name PARAMS ((const char *)) ATTRIBUTE_NORETURN;
234 static void perror_with_name PARAMS ((const char *));
235 static void pfatal_pexecute PARAMS ((const char *, const char *))
237 static void error PARAMS ((const char *, ...))
239 static void notice PARAMS ((const char *, ...))
241 static void display_help PARAMS ((void));
242 static void add_preprocessor_option PARAMS ((const char *, int));
243 static void add_assembler_option PARAMS ((const char *, int));
244 static void add_linker_option PARAMS ((const char *, int));
245 static void process_command PARAMS ((int, const char **));
246 static int execute PARAMS ((void));
247 static void unused_prefix_warnings PARAMS ((struct path_prefix *));
248 static void clear_args PARAMS ((void));
249 static void fatal_error PARAMS ((int));
250 static void set_input PARAMS ((const char *));
252 /* Specs are strings containing lines, each of which (if not blank)
253 is made up of a program name, and arguments separated by spaces.
254 The program name must be exact and start from root, since no path
255 is searched and it is unreliable to depend on the current working directory.
256 Redirection of input or output is not supported; the subprograms must
257 accept filenames saying what files to read and write.
259 In addition, the specs can contain %-sequences to substitute variable text
260 or for conditional text. Here is a table of all defined %-sequences.
261 Note that spaces are not generated automatically around the results of
262 expanding these sequences; therefore, you can concatenate them together
263 or with constant text in a single argument.
265 %% substitute one % into the program name or argument.
266 %i substitute the name of the input file being processed.
267 %b substitute the basename of the input file being processed.
268 This is the substring up to (and not including) the last period
269 and not including the directory.
270 %B same as %b, but include the file suffix (text after the last period).
272 substitute a file name that has suffix SUFFIX and is chosen
273 once per compilation, and mark the argument a la %d. To reduce
274 exposure to denial-of-service attacks, the file name is now
275 chosen in a way that is hard to predict even when previously
276 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
277 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
278 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
279 had been pre-processed. Previously, %g was simply substituted
280 with a file name chosen once per compilation, without regard
281 to any appended suffix (which was therefore treated just like
282 ordinary text), making such attacks more likely to succeed.
284 like %g, but generates a new temporary file name even if %uSUFFIX
287 substitutes the last file name generated with %uSUFFIX, generating a
288 new one if there is no such last file name. In the absence of any
289 %uSUFFIX, this is just like %gSUFFIX, except they don't share
290 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
291 would involve the generation of two distinct file names, one
292 for each `%g.s' and another for each `%U.s'. Previously, %U was
293 simply substituted with a file name chosen for the previous %u,
294 without regard to any appended suffix.
295 %d marks the argument containing or following the %d as a
296 temporary file name, so that that file will be deleted if CC exits
297 successfully. Unlike %g, this contributes no text to the argument.
298 %w marks the argument containing or following the %w as the
299 "output file" of this compilation. This puts the argument
300 into the sequence of arguments that %o will substitute later.
302 like %{...} but mark last argument supplied within
303 as a file to be deleted on failure.
304 %o substitutes the names of all the output files, with spaces
305 automatically placed around them. You should write spaces
306 around the %o as well or the results are undefined.
307 %o is for use in the specs for running the linker.
308 Input files whose names have no recognized suffix are not compiled
309 at all, but they are included among the output files, so they will
311 %O substitutes the suffix for object files. Note that this is
312 handled specially when it immediately follows %g, %u, or %U
313 (with or without a suffix argument) because of the need for
314 those to form complete file names. The handling is such that
315 %O is treated exactly as if it had already been substituted,
316 except that %g, %u, and %U do not currently support additional
317 SUFFIX characters following %O as they would following, for
319 %p substitutes the standard macro predefinitions for the
320 current target machine. Use this when running cpp.
321 %P like %p, but puts `__' before and after the name of each macro.
322 (Except macros that already have __.)
324 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
325 %s current argument is the name of a library or startup file of some sort.
326 Search for that file in a standard list of directories
327 and substitute the full name found.
328 %eSTR Print STR as an error message. STR is terminated by a newline.
329 Use this when inconsistent options are detected.
330 %x{OPTION} Accumulate an option for %X.
331 %X Output the accumulated linker options specified by compilations.
332 %Y Output the accumulated assembler options specified by compilations.
333 %Z Output the accumulated preprocessor options specified by compilations.
334 %v1 Substitute the major version number of GCC.
335 (For version 2.5.3, this is 2.)
336 %v2 Substitute the minor version number of GCC.
337 (For version 2.5.3, this is 5.)
338 %v3 Substitute the patch level number of GCC.
339 (For version 2.5.3, this is 3.)
340 %a process ASM_SPEC as a spec.
341 This allows config.h to specify part of the spec for running as.
342 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
343 used here. This can be used to run a post-processor after the
344 assembler has done its job.
345 %D Dump out a -L option for each directory in startfile_prefixes.
346 If multilib_dir is set, extra entries are generated with it affixed.
347 %l process LINK_SPEC as a spec.
348 %L process LIB_SPEC as a spec.
349 %G process LIBGCC_SPEC as a spec.
350 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
351 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
352 %c process SIGNED_CHAR_SPEC as a spec.
353 %C process CPP_SPEC as a spec. A capital C is actually used here.
354 %1 process CC1_SPEC as a spec.
355 %2 process CC1PLUS_SPEC as a spec.
356 %| output "-" if the input for the current command is coming from a pipe.
357 %* substitute the variable part of a matched option. (See below.)
358 Note that each comma in the substituted string is replaced by
360 %{S} substitutes the -S switch, if that switch was given to CC.
361 If that switch was not specified, this substitutes nothing.
362 Here S is a metasyntactic variable.
363 %{S*} substitutes all the switches specified to CC whose names start
364 with -S. This is used for -o, -D, -I, etc; switches that take
365 arguments. CC considers `-o foo' as being one switch whose
366 name starts with `o'. %{o*} would substitute this text,
367 including the space; thus, two arguments would be generated.
368 %{^S*} likewise, but don't put a blank between a switch and any args.
369 %{S*:X} substitutes X if one or more switches whose names start with -S are
370 specified to CC. Note that the tail part of the -S option
371 (i.e. the part matched by the `*') will be substituted for each
372 occurrence of %* within X.
373 %{<S} remove all occurences of S from the command line.
374 Note - this option is position dependent. % commands in the
375 spec string before this option will see S, % commands in the
376 spec string after this option will not.
377 %{S:X} substitutes X, but only if the -S switch was given to CC.
378 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
379 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
380 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
381 %{.S:X} substitutes X, but only if processing a file with suffix S.
382 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
383 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
384 combined with ! and . as above binding stronger than the OR.
385 %(Spec) processes a specification defined in a specs file as *Spec:
386 %[Spec] as above, but put __ around -D arguments
388 The conditional text X in a %{S:X} or %{!S:X} construct may contain
389 other nested % constructs or spaces, or even newlines. They are
390 processed as usual, as described above.
392 The -O, -f, -m, and -W switches are handled specifically in these
393 constructs. If another value of -O or the negated form of a -f, -m, or
394 -W switch is found later in the command line, the earlier switch
395 value is ignored, except with {S*} where S is just one letter; this
396 passes all matching options.
398 The character | at the beginning of the predicate text is used to indicate
399 that a command should be piped to the following command, but only if -pipe
402 Note that it is built into CC which switches take arguments and which
403 do not. You might think it would be useful to generalize this to
404 allow each compiler's spec to say which switches take arguments. But
405 this cannot be done in a consistent fashion. CC cannot even decide
406 which input files have been specified without knowing which switches
407 take arguments, and it must know which input files to compile in order
408 to tell which compilers to run.
410 CC also knows implicitly that arguments starting in `-l' are to be
411 treated as compiler output files, and passed to the linker in their
412 proper position among the other output files. */
414 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
416 /* config.h can define ASM_SPEC to provide extra args to the assembler
417 or extra switch-translations. */
422 /* config.h can define ASM_FINAL_SPEC to run a post processor after
423 the assembler has run. */
424 #ifndef ASM_FINAL_SPEC
425 #define ASM_FINAL_SPEC ""
428 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
429 or extra switch-translations. */
434 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
435 or extra switch-translations. */
440 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
441 or extra switch-translations. */
443 #define CC1PLUS_SPEC ""
446 /* config.h can define LINK_SPEC to provide extra args to the linker
447 or extra switch-translations. */
452 /* config.h can define LIB_SPEC to override the default libraries. */
454 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
457 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
460 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
461 /* Have gcc do the search for libgcc.a. */
462 #define LIBGCC_SPEC "libgcc.a%s"
464 #define LIBGCC_SPEC "-lgcc"
468 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
469 #ifndef STARTFILE_SPEC
470 #define STARTFILE_SPEC \
471 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
474 /* config.h can define SWITCHES_NEED_SPACES to control which options
475 require spaces between the option and the argument. */
476 #ifndef SWITCHES_NEED_SPACES
477 #define SWITCHES_NEED_SPACES ""
480 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
482 #define ENDFILE_SPEC ""
485 /* This spec is used for telling cpp whether char is signed or not. */
486 #ifndef SIGNED_CHAR_SPEC
487 /* Use #if rather than ?:
488 because MIPS C compiler rejects like ?: in initializers. */
489 #if DEFAULT_SIGNED_CHAR
490 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
492 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
497 #define LINKER_NAME "collect2"
500 /* Here is the spec for running the linker, after compiling all files. */
502 /* -u* was put back because both BSD and SysV seem to support it. */
503 /* %{static:} simply prevents an error message if the target machine
504 doesn't handle -static. */
505 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
506 scripts which exist in user specified directories, or in standard
508 #ifndef LINK_COMMAND_SPEC
509 #define LINK_COMMAND_SPEC "\
510 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
511 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
512 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
513 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
514 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
517 #ifndef LINK_LIBGCC_SPEC
518 # ifdef LINK_LIBGCC_SPECIAL
519 /* Don't generate -L options for startfile prefix list. */
520 # define LINK_LIBGCC_SPEC ""
522 /* Do generate them. */
523 # define LINK_LIBGCC_SPEC "%D"
527 static const char *cpp_spec = CPP_SPEC;
528 static const char *cpp_predefines = CPP_PREDEFINES;
529 static const char *cc1_spec = CC1_SPEC;
530 static const char *cc1plus_spec = CC1PLUS_SPEC;
531 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
532 static const char *asm_spec = ASM_SPEC;
533 static const char *asm_final_spec = ASM_FINAL_SPEC;
534 static const char *link_spec = LINK_SPEC;
535 static const char *lib_spec = LIB_SPEC;
536 static const char *libgcc_spec = LIBGCC_SPEC;
537 static const char *endfile_spec = ENDFILE_SPEC;
538 static const char *startfile_spec = STARTFILE_SPEC;
539 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
540 static const char *linker_name_spec = LINKER_NAME;
541 static const char *link_command_spec = LINK_COMMAND_SPEC;
542 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
544 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
545 There should be no need to override these in target dependent files,
546 but we need to copy them to the specs file so that newer versions
547 of the GCC driver can correctly drive older tool chains with the
548 appropriate -B options. */
550 static const char *trad_capable_cpp =
551 "%{traditional|ftraditional|traditional-cpp:trad}cpp";
553 static const char *cpp_options =
554 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
555 %{std*} %{nostdinc*}\
556 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
557 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
558 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
559 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
560 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
561 %{ffast-math:-D__FAST_MATH__}\
562 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
563 %{fshow-column} %{fno-show-column}\
564 %{fleading-underscore} %{fno-leading-underscore}\
565 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z %i\
566 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
568 static const char *cc1_options =
569 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
570 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
571 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
572 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
573 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
574 %{S:%W{o*}%{!o*:-o %b.s}}";
576 static const char *asm_options =
577 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
579 /* Some compilers have limits on line lengths, and the multilib_select
580 and/or multilib_matches strings can be very long, so we build them at
582 static struct obstack multilib_obstack;
583 static const char *multilib_select;
584 static const char *multilib_matches;
585 static const char *multilib_defaults;
586 static const char *multilib_exclusions;
587 #include "multilib.h"
589 /* Check whether a particular argument is a default argument. */
591 #ifndef MULTILIB_DEFAULTS
592 #define MULTILIB_DEFAULTS { "" }
595 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
599 struct user_specs *next;
600 const char *filename;
603 static struct user_specs *user_specs_head, *user_specs_tail;
605 /* This defines which switch letters take arguments. */
607 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
608 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
609 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
610 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
611 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
612 || (CHAR) == 'B' || (CHAR) == 'b')
614 #ifndef SWITCH_TAKES_ARG
615 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
618 /* This defines which multi-letter switches take arguments. */
620 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
621 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
622 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
623 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
624 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
625 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
626 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
628 #ifndef WORD_SWITCH_TAKES_ARG
629 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
633 #ifdef HAVE_EXECUTABLE_SUFFIX
634 /* This defines which switches stop a full compilation. */
635 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
636 ((CHAR) == 'c' || (CHAR) == 'S')
638 #ifndef SWITCH_CURTAILS_COMPILATION
639 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
640 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
644 /* Record the mapping from file suffixes for compilation specs. */
648 const char *suffix; /* Use this compiler for input files
649 whose names end in this suffix. */
651 const char *spec; /* To use this compiler, run this spec. */
654 /* Pointer to a vector of `struct compiler' that gives the spec for
655 compiling a file, based on its suffix.
656 A file that does not end in any of these suffixes will be passed
657 unchanged to the loader and nothing else will be done to it.
659 An entry containing two 0s is used to terminate the vector.
661 If multiple entries match a file, the last matching one is used. */
663 static struct compiler *compilers;
665 /* Number of entries in `compilers', not counting the null terminator. */
667 static int n_compilers;
669 /* The default list of file name suffixes and their compilation specs. */
671 static struct compiler default_compilers[] =
673 /* Add lists of suffixes of known languages here. If those languages
674 were not present when we built the driver, we will hit these copies
675 and be given a more meaningful error than "file not used since
676 linking is not done". */
677 {".m", "#Objective-C"},
678 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"},
679 {".c++", "#C++"}, {".C", "#C++"},
680 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
681 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
682 {".fpp", "#Fortran"}, {".r", "#Ratfor"},
683 {".p", "#Pascal"}, {".pas", "#Pascal"},
684 {".ch", "#Chill"}, {".chi", "#Chill"},
685 {".java", "#Java"}, {".class", "#Java"},
686 {".zip", "#Java"}, {".jar", "#Java"},
687 /* Next come the entries for C. */
691 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %(cpp_options)}\
692 %{!E:%{!M:%{!MM:cc1 -lang-c %{ansi:-std=c89} %(cpp_options)\
693 %(cc1_options) %{!S:-o %{|!pipe:%g.s} |\n\
694 as %(asm_options) %{!pipe:%g.s} %A }}}}"
695 #else /* ! USE_CPPLIB */
696 "%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options) \
697 %{!M:%{!MM:%{!E:%{!pipe:%g.i} |\n\
698 cc1 %{!pipe:%g.i} %(cc1_options) %{!S:-o %{|!pipe:%g.s} |\n\
699 as %(asm_options) %{!pipe:%g.s} %A }}}}\n"
700 #endif /* ! USE_CPPLIB */
703 "%{!E:%e-E required when input is from standard input}\
704 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
707 "%{!E:%eCompilation of header file requested} \
708 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
709 {".i", "@cpp-output"},
712 cc1 %i %(cc1_options) %{!S:|\n\
713 as %(asm_options) %{!pipe:%g.s} %A }}}}"},
714 {".s", "@assembler"},
716 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
717 {".S", "@assembler-with-cpp"},
718 {"@assembler-with-cpp",
719 "%(trad_capable_cpp) -lang-asm %(cpp_options) \
720 %{!M:%{!MM:%{!E:%{!S: %{!pipe:%g.s} |\n\
721 as %(asm_options) %{!pipe:%g.s} %A }}}}"},
723 /* Mark end of table */
727 /* Number of elements in default_compilers, not counting the terminator. */
729 static int n_default_compilers
730 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
732 /* A vector of options to give to the linker.
733 These options are accumulated by %x,
734 and substituted into the linker command with %X. */
735 static int n_linker_options;
736 static char **linker_options;
738 /* A vector of options to give to the assembler.
739 These options are accumulated by -Wa,
740 and substituted into the assembler command with %Y. */
741 static int n_assembler_options;
742 static char **assembler_options;
744 /* A vector of options to give to the preprocessor.
745 These options are accumulated by -Wp,
746 and substituted into the preprocessor command with %Z. */
747 static int n_preprocessor_options;
748 static char **preprocessor_options;
750 /* Define how to map long options into short ones. */
752 /* This structure describes one mapping. */
755 /* The long option's name. */
757 /* The equivalent short option. */
758 const char *equivalent;
759 /* Argument info. A string of flag chars; NULL equals no options.
760 a => argument required.
761 o => argument optional.
762 j => join argument to equivalent, making one word.
763 * => require other text after NAME as an argument. */
764 const char *arg_info;
767 /* This is the table of mappings. Mappings are tried sequentially
768 for each option encountered; the first one that matches, wins. */
770 struct option_map option_map[] =
772 {"--all-warnings", "-Wall", 0},
773 {"--ansi", "-ansi", 0},
774 {"--assemble", "-S", 0},
775 {"--assert", "-A", "a"},
776 {"--classpath", "-fclasspath=", "aj"},
777 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
778 {"--comments", "-C", 0},
779 {"--compile", "-c", 0},
780 {"--debug", "-g", "oj"},
781 {"--define-macro", "-D", "aj"},
782 {"--dependencies", "-M", 0},
783 {"--dump", "-d", "a"},
784 {"--dumpbase", "-dumpbase", "a"},
785 {"--entry", "-e", 0},
786 {"--extra-warnings", "-W", 0},
787 {"--for-assembler", "-Wa", "a"},
788 {"--for-linker", "-Xlinker", "a"},
789 {"--force-link", "-u", "a"},
790 {"--imacros", "-imacros", "a"},
791 {"--include", "-include", "a"},
792 {"--include-barrier", "-I-", 0},
793 {"--include-directory", "-I", "aj"},
794 {"--include-directory-after", "-idirafter", "a"},
795 {"--include-prefix", "-iprefix", "a"},
796 {"--include-with-prefix", "-iwithprefix", "a"},
797 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
798 {"--include-with-prefix-after", "-iwithprefix", "a"},
799 {"--language", "-x", "a"},
800 {"--library-directory", "-L", "a"},
801 {"--machine", "-m", "aj"},
802 {"--machine-", "-m", "*j"},
803 {"--no-line-commands", "-P", 0},
804 {"--no-precompiled-includes", "-noprecomp", 0},
805 {"--no-standard-includes", "-nostdinc", 0},
806 {"--no-standard-libraries", "-nostdlib", 0},
807 {"--no-warnings", "-w", 0},
808 {"--optimize", "-O", "oj"},
809 {"--output", "-o", "a"},
810 {"--output-class-directory", "-foutput-class-dir=", "ja"},
811 {"--pedantic", "-pedantic", 0},
812 {"--pedantic-errors", "-pedantic-errors", 0},
813 {"--pipe", "-pipe", 0},
814 {"--prefix", "-B", "a"},
815 {"--preprocess", "-E", 0},
816 {"--print-search-dirs", "-print-search-dirs", 0},
817 {"--print-file-name", "-print-file-name=", "aj"},
818 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
819 {"--print-missing-file-dependencies", "-MG", 0},
820 {"--print-multi-lib", "-print-multi-lib", 0},
821 {"--print-multi-directory", "-print-multi-directory", 0},
822 {"--print-prog-name", "-print-prog-name=", "aj"},
823 {"--profile", "-p", 0},
824 {"--profile-blocks", "-a", 0},
825 {"--quiet", "-q", 0},
826 {"--save-temps", "-save-temps", 0},
827 {"--shared", "-shared", 0},
828 {"--silent", "-q", 0},
829 {"--specs", "-specs=", "aj"},
830 {"--static", "-static", 0},
831 {"--std", "-std=", "aj"},
832 {"--symbolic", "-symbolic", 0},
833 {"--target", "-b", "a"},
834 {"--time", "-time", 0},
835 {"--trace-includes", "-H", 0},
836 {"--traditional", "-traditional", 0},
837 {"--traditional-cpp", "-traditional-cpp", 0},
838 {"--trigraphs", "-trigraphs", 0},
839 {"--undefine-macro", "-U", "aj"},
840 {"--use-version", "-V", "a"},
841 {"--user-dependencies", "-MM", 0},
842 {"--verbose", "-v", 0},
843 {"--version", "-dumpversion", 0},
844 {"--warn-", "-W", "*j"},
845 {"--write-dependencies", "-MD", 0},
846 {"--write-user-dependencies", "-MMD", 0},
850 /* Translate the options described by *ARGCP and *ARGVP.
851 Make a new vector and store it back in *ARGVP,
852 and store its length in *ARGVC. */
855 translate_options (argcp, argvp)
861 const char **argv = *argvp;
863 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
867 newv[newindex++] = argv[i++];
871 /* Translate -- options. */
872 if (argv[i][0] == '-' && argv[i][1] == '-')
875 /* Find a mapping that applies to this option. */
876 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
878 size_t optlen = strlen (option_map[j].name);
879 size_t arglen = strlen (argv[i]);
880 size_t complen = arglen > optlen ? optlen : arglen;
881 const char *arginfo = option_map[j].arg_info;
886 if (!strncmp (argv[i], option_map[j].name, complen))
894 k < sizeof (option_map) / sizeof (option_map[0]);
896 if (strlen (option_map[k].name) >= arglen
897 && !strncmp (argv[i], option_map[k].name, arglen))
899 error ("Ambiguous abbreviation %s", argv[i]);
903 if (k != sizeof (option_map) / sizeof (option_map[0]))
909 /* If the option has an argument, accept that. */
910 if (argv[i][optlen] == '=')
911 arg = argv[i] + optlen + 1;
913 /* If this mapping requires extra text at end of name,
914 accept that as "argument". */
915 else if (index (arginfo, '*') != 0)
916 arg = argv[i] + optlen;
918 /* Otherwise, extra text at end means mismatch.
919 Try other mappings. */
924 else if (index (arginfo, '*') != 0)
926 error ("Incomplete `%s' option", option_map[j].name);
930 /* Handle arguments. */
931 if (index (arginfo, 'a') != 0)
937 error ("Missing argument to `%s' option",
945 else if (index (arginfo, '*') != 0)
947 else if (index (arginfo, 'o') == 0)
950 error ("Extraneous argument to `%s' option",
955 /* Store the translation as one argv elt or as two. */
956 if (arg != 0 && index (arginfo, 'j') != 0)
957 newv[newindex++] = concat (option_map[j].equivalent, arg,
961 newv[newindex++] = option_map[j].equivalent;
962 newv[newindex++] = arg;
965 newv[newindex++] = option_map[j].equivalent;
973 /* Handle old-fashioned options--just copy them through,
974 with their arguments. */
975 else if (argv[i][0] == '-')
977 const char *p = argv[i] + 1;
981 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
982 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
983 else if (WORD_SWITCH_TAKES_ARG (p))
984 nskip += WORD_SWITCH_TAKES_ARG (p);
985 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
988 else if (! strcmp (p, "Xlinker"))
991 /* Watch out for an option at the end of the command line that
992 is missing arguments, and avoid skipping past the end of the
994 if (nskip + i > argc)
999 newv[newindex++] = argv[i++];
1004 /* Ordinary operands, or +e options. */
1005 newv[newindex++] = argv[i++];
1020 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1021 be considered whitespace. */
1022 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1024 else if (*p == '\n' || *p == ' ' || *p == '\t')
1028 while (*p != '\n') p++;
1038 /* Structure to keep track of the specs that have been defined so far.
1039 These are accessed using %(specname) or %[specname] in a compiler
1044 /* The following 2 fields must be first */
1045 /* to allow EXTRA_SPECS to be initialized */
1046 const char *name; /* name of the spec. */
1047 const char *ptr; /* available ptr if no static pointer */
1049 /* The following fields are not initialized */
1050 /* by EXTRA_SPECS */
1051 const char **ptr_spec; /* pointer to the spec itself. */
1052 struct spec_list *next; /* Next spec in linked list. */
1053 int name_len; /* length of the name */
1054 int alloc_p; /* whether string was allocated */
1057 #define INIT_STATIC_SPEC(NAME,PTR) \
1058 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1060 /* List of statically defined specs. */
1061 static struct spec_list static_specs[] =
1063 INIT_STATIC_SPEC ("asm", &asm_spec),
1064 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1065 INIT_STATIC_SPEC ("asm_options", &asm_options),
1066 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1067 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1068 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1069 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1070 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1071 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1072 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1073 INIT_STATIC_SPEC ("link", &link_spec),
1074 INIT_STATIC_SPEC ("lib", &lib_spec),
1075 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1076 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1077 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1078 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1079 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1080 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1081 INIT_STATIC_SPEC ("version", &compiler_version),
1082 INIT_STATIC_SPEC ("multilib", &multilib_select),
1083 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1084 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1085 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1086 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1087 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1088 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1091 #ifdef EXTRA_SPECS /* additional specs needed */
1092 /* Structure to keep track of just the first two args of a spec_list.
1093 That is all that the EXTRA_SPECS macro gives us. */
1100 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1101 static struct spec_list * extra_specs = (struct spec_list *)0;
1104 /* List of dynamically allocates specs that have been defined so far. */
1106 static struct spec_list *specs = (struct spec_list *)0;
1109 /* Initialize the specs lookup routines. */
1114 struct spec_list *next = (struct spec_list *)0;
1115 struct spec_list *sl = (struct spec_list *)0;
1119 return; /* Already initialized. */
1122 notice ("Using builtin specs.\n");
1125 extra_specs = (struct spec_list *)
1126 xcalloc (sizeof(struct spec_list),
1127 (sizeof(extra_specs_1)/sizeof(extra_specs_1[0])));
1129 for (i = (sizeof(extra_specs_1) / sizeof(extra_specs_1[0])) - 1; i >= 0; i--)
1131 sl = &extra_specs[i];
1132 sl->name = extra_specs_1[i].name;
1133 sl->ptr = extra_specs_1[i].ptr;
1135 sl->name_len = strlen (sl->name);
1136 sl->ptr_spec = &sl->ptr;
1141 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1143 sl = &static_specs[i];
1152 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1153 removed; If the spec starts with a + then SPEC is added to the end of the
1157 set_spec (name, spec)
1161 struct spec_list *sl;
1162 const char *old_spec;
1163 int name_len = strlen (name);
1166 /* If this is the first call, initialize the statically allocated specs. */
1169 struct spec_list *next = (struct spec_list *)0;
1170 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1173 sl = &static_specs[i];
1180 /* See if the spec already exists. */
1181 for (sl = specs; sl; sl = sl->next)
1182 if (name_len == sl->name_len && !strcmp (sl->name, name))
1187 /* Not found - make it. */
1188 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1189 sl->name = xstrdup (name);
1190 sl->name_len = name_len;
1191 sl->ptr_spec = &sl->ptr;
1193 *(sl->ptr_spec) = "";
1198 old_spec = *(sl->ptr_spec);
1199 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1200 ? concat (old_spec, spec + 1, NULL_PTR)
1205 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1208 /* Free the old spec. */
1209 if (old_spec && sl->alloc_p)
1210 free ((PTR) old_spec);
1215 /* Accumulate a command (program name and args), and run it. */
1217 /* Vector of pointers to arguments in the current line of specifications. */
1219 static const char **argbuf;
1221 /* Number of elements allocated in argbuf. */
1223 static int argbuf_length;
1225 /* Number of elements in argbuf currently in use (containing args). */
1227 static int argbuf_index;
1229 /* We want this on by default all the time now. */
1230 #define MKTEMP_EACH_FILE
1232 #ifdef MKTEMP_EACH_FILE
1234 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1237 static struct temp_name {
1238 const char *suffix; /* suffix associated with the code. */
1239 int length; /* strlen (suffix). */
1240 int unique; /* Indicates whether %g or %u/%U was used. */
1241 const char *filename; /* associated filename. */
1242 int filename_length; /* strlen (filename). */
1243 struct temp_name *next;
1248 /* Number of commands executed so far. */
1250 static int execution_count;
1252 /* Number of commands that exited with a signal. */
1254 static int signal_count;
1256 /* Name with which this program was invoked. */
1258 static const char *programname;
1260 /* Structures to keep track of prefixes to try when looking for files. */
1264 char *prefix; /* String to prepend to the path. */
1265 struct prefix_list *next; /* Next in linked list. */
1266 int require_machine_suffix; /* Don't use without machine_suffix. */
1267 /* 2 means try both machine_suffix and just_machine_suffix. */
1268 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1269 int priority; /* Sort key - priority within list */
1274 struct prefix_list *plist; /* List of prefixes to try */
1275 int max_len; /* Max length of a prefix in PLIST */
1276 const char *name; /* Name of this list (used in config stuff) */
1279 /* List of prefixes to try when looking for executables. */
1281 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1283 /* List of prefixes to try when looking for startup (crt0) files. */
1285 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1287 /* List of prefixes to try when looking for include files. */
1289 static struct path_prefix include_prefixes = { 0, 0, "include" };
1291 /* Suffix to attach to directories searched for commands.
1292 This looks like `MACHINE/VERSION/'. */
1294 static const char *machine_suffix = 0;
1296 /* Suffix to attach to directories searched for commands.
1297 This is just `MACHINE/'. */
1299 static const char *just_machine_suffix = 0;
1301 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1303 static const char *gcc_exec_prefix;
1305 /* Default prefixes to attach to command names. */
1307 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1308 #undef MD_EXEC_PREFIX
1309 #undef MD_STARTFILE_PREFIX
1310 #undef MD_STARTFILE_PREFIX_1
1313 #ifndef STANDARD_EXEC_PREFIX
1314 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1315 #endif /* !defined STANDARD_EXEC_PREFIX */
1317 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1318 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1319 #ifdef MD_EXEC_PREFIX
1320 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1323 #ifndef STANDARD_STARTFILE_PREFIX
1324 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1325 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1327 #ifdef MD_STARTFILE_PREFIX
1328 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1330 #ifdef MD_STARTFILE_PREFIX_1
1331 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1333 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1334 static const char *standard_startfile_prefix_1 = "/lib/";
1335 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1337 #ifndef TOOLDIR_BASE_PREFIX
1338 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1340 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1341 static const char *tooldir_prefix;
1343 #ifndef STANDARD_BINDIR_PREFIX
1344 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1346 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1348 /* Subdirectory to use for locating libraries. Set by
1349 set_multilib_dir based on the compilation options. */
1351 static const char *multilib_dir;
1353 /* Clear out the vector of arguments (after a command is executed). */
1361 /* Add one argument to the vector at the end.
1362 This is done when a space is seen or at the end of the line.
1363 If DELETE_ALWAYS is nonzero, the arg is a filename
1364 and the file should be deleted eventually.
1365 If DELETE_FAILURE is nonzero, the arg is a filename
1366 and the file should be deleted if this compilation fails. */
1369 store_arg (arg, delete_always, delete_failure)
1371 int delete_always, delete_failure;
1373 if (argbuf_index + 1 == argbuf_length)
1375 = (const char **) xrealloc (argbuf,
1376 (argbuf_length *= 2) * sizeof (const char *));
1378 argbuf[argbuf_index++] = arg;
1379 argbuf[argbuf_index] = 0;
1381 if (delete_always || delete_failure)
1382 record_temp_file (arg, delete_always, delete_failure);
1385 /* Load specs from a file name named FILENAME, replacing occurances of
1386 various different types of line-endings, \r\n, \n\r and just \r, with
1390 load_specs (filename)
1391 const char *filename;
1395 struct stat statbuf;
1402 notice ("Reading specs from %s\n", filename);
1404 /* Open and stat the file. */
1405 desc = open (filename, O_RDONLY, 0);
1407 pfatal_with_name (filename);
1408 if (stat (filename, &statbuf) < 0)
1409 pfatal_with_name (filename);
1411 /* Read contents of file into BUFFER. */
1412 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1413 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1415 pfatal_with_name (filename);
1416 buffer[readlen] = 0;
1419 specs = xmalloc (readlen + 1);
1421 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1427 if (buffer_p > buffer && *(buffer_p-1) == '\n') /* \n\r */
1429 else if (*(buffer_p+1) == '\n') /* \r\n */
1443 /* Read compilation specs from a file named FILENAME,
1444 replacing the default ones.
1446 A suffix which starts with `*' is a definition for
1447 one of the machine-specific sub-specs. The "suffix" should be
1448 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1449 The corresponding spec is stored in asm_spec, etc.,
1450 rather than in the `compilers' vector.
1452 Anything invalid in the file is a fatal error. */
1455 read_specs (filename, main_p)
1456 const char *filename;
1462 buffer = load_specs (filename);
1464 /* Scan BUFFER for specs, putting them in the vector. */
1470 char *in, *out, *p1, *p2, *p3;
1472 /* Advance P in BUFFER to the next nonblank nocomment line. */
1473 p = skip_whitespace (p);
1477 /* Is this a special command that starts with '%'? */
1478 /* Don't allow this for the main specs file, since it would
1479 encourage people to overwrite it. */
1480 if (*p == '%' && !main_p)
1483 while (*p && *p != '\n')
1486 p++; /* Skip '\n' */
1488 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1489 && (p1[sizeof "%include" - 1] == ' '
1490 || p1[sizeof "%include" - 1] == '\t'))
1494 p1 += sizeof ("%include");
1495 while (*p1 == ' ' || *p1 == '\t')
1498 if (*p1++ != '<' || p[-2] != '>')
1499 fatal ("specs %%include syntax malformed after %ld characters",
1500 (long) (p1 - buffer + 1));
1503 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1504 read_specs (new_filename ? new_filename : p1, FALSE);
1507 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1508 && (p1[sizeof "%include_noerr" - 1] == ' '
1509 || p1[sizeof "%include_noerr" - 1] == '\t'))
1513 p1 += sizeof "%include_noerr";
1514 while (*p1 == ' ' || *p1 == '\t') p1++;
1516 if (*p1++ != '<' || p[-2] != '>')
1517 fatal ("specs %%include syntax malformed after %ld characters",
1518 (long) (p1 - buffer + 1));
1521 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1523 read_specs (new_filename, FALSE);
1524 else if (verbose_flag)
1525 notice ("Could not find specs file %s\n", p1);
1528 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1529 && (p1[sizeof "%rename" - 1] == ' '
1530 || p1[sizeof "%rename" - 1] == '\t'))
1533 struct spec_list *sl;
1535 /* Get original name */
1536 p1 += sizeof "%rename";
1537 while (*p1 == ' ' || *p1 == '\t')
1540 if (! ISALPHA ((unsigned char)*p1))
1541 fatal ("specs %%rename syntax malformed after %ld characters",
1542 (long) (p1 - buffer));
1545 while (*p2 && !ISSPACE ((unsigned char)*p2))
1548 if (*p2 != ' ' && *p2 != '\t')
1549 fatal ("specs %%rename syntax malformed after %ld characters",
1550 (long) (p2 - buffer));
1554 while (*p2 == ' ' || *p2 == '\t')
1557 if (! ISALPHA ((unsigned char)*p2))
1558 fatal ("specs %%rename syntax malformed after %ld characters",
1559 (long) (p2 - buffer));
1561 /* Get new spec name */
1563 while (*p3 && !ISSPACE ((unsigned char)*p3))
1567 fatal ("specs %%rename syntax malformed after %ld characters",
1568 (long) (p3 - buffer));
1571 for (sl = specs; sl; sl = sl->next)
1572 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1576 fatal ("specs %s spec was not found to be renamed", p1);
1578 if (strcmp (p1, p2) == 0)
1583 notice ("rename spec %s to %s\n", p1, p2);
1585 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1589 set_spec (p2, *(sl->ptr_spec));
1591 free ((PTR) *(sl->ptr_spec));
1593 *(sl->ptr_spec) = "";
1598 fatal ("specs unknown %% command after %ld characters",
1599 (long) (p1 - buffer));
1602 /* Find the colon that should end the suffix. */
1604 while (*p1 && *p1 != ':' && *p1 != '\n')
1607 /* The colon shouldn't be missing. */
1609 fatal ("specs file malformed after %ld characters",
1610 (long) (p1 - buffer));
1612 /* Skip back over trailing whitespace. */
1614 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1617 /* Copy the suffix to a string. */
1618 suffix = save_string (p, p2 - p);
1619 /* Find the next line. */
1620 p = skip_whitespace (p1 + 1);
1622 fatal ("specs file malformed after %ld characters",
1623 (long) (p - buffer));
1626 /* Find next blank line or end of string. */
1627 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1630 /* Specs end at the blank line and do not include the newline. */
1631 spec = save_string (p, p1 - p);
1634 /* Delete backslash-newline sequences from the spec. */
1639 if (in[0] == '\\' && in[1] == '\n')
1641 else if (in[0] == '#')
1642 while (*in && *in != '\n')
1650 if (suffix[0] == '*')
1652 if (! strcmp (suffix, "*link_command"))
1653 link_command_spec = spec;
1655 set_spec (suffix + 1, spec);
1659 /* Add this pair to the vector. */
1661 = ((struct compiler *)
1662 xrealloc (compilers,
1663 (n_compilers + 2) * sizeof (struct compiler)));
1665 compilers[n_compilers].suffix = suffix;
1666 compilers[n_compilers].spec = spec;
1668 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1672 link_command_spec = spec;
1675 if (link_command_spec == 0)
1676 fatal ("spec file has no spec for linking");
1679 /* Record the names of temporary files we tell compilers to write,
1680 and delete them at the end of the run. */
1682 /* This is the common prefix we use to make temp file names.
1683 It is chosen once for each run of this program.
1684 It is substituted into a spec by %g.
1685 Thus, all temp file names contain this prefix.
1686 In practice, all temp file names start with this prefix.
1688 This prefix comes from the envvar TMPDIR if it is defined;
1689 otherwise, from the P_tmpdir macro if that is defined;
1690 otherwise, in /usr/tmp or /tmp;
1691 or finally the current directory if all else fails. */
1693 static const char *temp_filename;
1695 /* Length of the prefix. */
1697 static int temp_filename_length;
1699 /* Define the list of temporary files to delete. */
1704 struct temp_file *next;
1707 /* Queue of files to delete on success or failure of compilation. */
1708 static struct temp_file *always_delete_queue;
1709 /* Queue of files to delete on failure of compilation. */
1710 static struct temp_file *failure_delete_queue;
1712 /* Record FILENAME as a file to be deleted automatically.
1713 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1714 otherwise delete it in any case.
1715 FAIL_DELETE nonzero means delete it if a compilation step fails;
1716 otherwise delete it in any case. */
1719 record_temp_file (filename, always_delete, fail_delete)
1720 const char *filename;
1724 register char * const name = xstrdup (filename);
1728 register struct temp_file *temp;
1729 for (temp = always_delete_queue; temp; temp = temp->next)
1730 if (! strcmp (name, temp->name))
1733 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1734 temp->next = always_delete_queue;
1736 always_delete_queue = temp;
1743 register struct temp_file *temp;
1744 for (temp = failure_delete_queue; temp; temp = temp->next)
1745 if (! strcmp (name, temp->name))
1748 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1749 temp->next = failure_delete_queue;
1751 failure_delete_queue = temp;
1757 /* Delete all the temporary files whose names we previously recorded. */
1760 delete_if_ordinary (name)
1767 printf ("Delete %s? (y or n) ", name);
1771 while ((c = getchar ()) != '\n' && c != EOF)
1774 if (i == 'y' || i == 'Y')
1776 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1777 if (unlink (name) < 0)
1779 perror_with_name (name);
1783 delete_temp_files ()
1785 register struct temp_file *temp;
1787 for (temp = always_delete_queue; temp; temp = temp->next)
1788 delete_if_ordinary (temp->name);
1789 always_delete_queue = 0;
1792 /* Delete all the files to be deleted on error. */
1795 delete_failure_queue ()
1797 register struct temp_file *temp;
1799 for (temp = failure_delete_queue; temp; temp = temp->next)
1800 delete_if_ordinary (temp->name);
1804 clear_failure_queue ()
1806 failure_delete_queue = 0;
1809 /* Routine to add variables to the environment. We do this to pass
1810 the pathname of the gcc driver, and the directories search to the
1811 collect2 program, which is being run as ld. This way, we can be
1812 sure of executing the right compiler when collect2 wants to build
1813 constructors and destructors. Since the environment variables we
1814 use come from an obstack, we don't have to worry about allocating
1823 #ifndef VMS /* nor about VMS */
1825 extern char **environ;
1826 char **old_environ = environ;
1830 int str_len = strlen (str);
1834 while ((ch = *p++) != '\0' && ch != '=')
1840 /* Search for replacing an existing environment variable, and
1841 count the number of total environment variables. */
1842 for (envp = old_environ; *envp; envp++)
1845 if (!strncmp (str, *envp, name_len))
1852 /* Add a new environment variable */
1853 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1855 memcpy ((char *) (environ + 1), (char *) old_environ,
1856 sizeof (char *) * (num_envs+1));
1861 #endif /* HAVE_PUTENV */
1864 /* Build a list of search directories from PATHS.
1865 PREFIX is a string to prepend to the list.
1866 If CHECK_DIR_P is non-zero we ensure the directory exists.
1867 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1868 It is also used by the --print-search-dirs flag. */
1871 build_search_list (paths, prefix, check_dir_p)
1872 struct path_prefix *paths;
1876 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1878 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1879 int first_time = TRUE;
1880 struct prefix_list *pprefix;
1882 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1883 obstack_1grow (&collect_obstack, '=');
1885 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1887 int len = strlen (pprefix->prefix);
1891 || is_directory (pprefix->prefix, machine_suffix, 0)))
1894 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1897 obstack_grow (&collect_obstack, pprefix->prefix, len);
1898 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1901 if (just_machine_suffix
1902 && pprefix->require_machine_suffix == 2
1904 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1907 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1910 obstack_grow (&collect_obstack, pprefix->prefix, len);
1911 obstack_grow (&collect_obstack, just_machine_suffix,
1915 if (! pprefix->require_machine_suffix)
1918 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1921 obstack_grow (&collect_obstack, pprefix->prefix, len);
1925 obstack_1grow (&collect_obstack, '\0');
1926 return obstack_finish (&collect_obstack);
1929 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1933 putenv_from_prefixes (paths, env_var)
1934 struct path_prefix *paths;
1935 const char *env_var;
1937 putenv (build_search_list (paths, env_var, 1));
1942 /* FIXME: the location independence code for VMS is hairier than this,
1943 and hasn't been written. */
1945 /* Split a filename into component directories. */
1948 split_directories (name, ptr_num_dirs)
1957 /* Count the number of directories. Special case MSDOS disk names as part
1958 of the initial directory. */
1960 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1961 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1966 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1968 while ((ch = *p++) != '\0')
1970 if (IS_DIR_SEPARATOR (ch))
1973 while (IS_DIR_SEPARATOR (*p))
1978 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
1980 /* Now copy the directory parts. */
1983 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1984 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1986 dirs[num_dirs++] = save_string (p, 3);
1989 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1992 while ((ch = *p++) != '\0')
1994 if (IS_DIR_SEPARATOR (ch))
1996 while (IS_DIR_SEPARATOR (*p))
1999 dirs[num_dirs++] = save_string (q, p - q);
2005 dirs[num_dirs++] = save_string (q, p - 1 - q);
2007 dirs[num_dirs] = NULL_PTR;
2009 *ptr_num_dirs = num_dirs;
2014 /* Release storage held by split directories. */
2017 free_split_directories (dirs)
2022 while (dirs[i] != NULL_PTR)
2025 free ((char *)dirs);
2028 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2029 to PREFIX starting with the directory portion of PROGNAME and a relative
2030 pathname of the difference between BIN_PREFIX and PREFIX.
2032 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2033 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2034 function will return /red/green/blue/../omega.
2036 If no relative prefix can be found, return NULL. */
2039 make_relative_prefix (progname, bin_prefix, prefix)
2040 const char *progname;
2041 const char *bin_prefix;
2044 char **prog_dirs, **bin_dirs, **prefix_dirs;
2045 int prog_num, bin_num, prefix_num, std_loc_p;
2048 prog_dirs = split_directories (progname, &prog_num);
2049 bin_dirs = split_directories (bin_prefix, &bin_num);
2051 /* If there is no full pathname, try to find the program by checking in each
2052 of the directories specified in the PATH environment variable. */
2057 GET_ENV_PATH_LIST (temp, "PATH");
2060 char *startp, *endp;
2061 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2063 startp = endp = temp;
2066 if (*endp == PATH_SEPARATOR || *endp == 0)
2071 nstore[1] = DIR_SEPARATOR;
2076 strncpy (nstore, startp, endp-startp);
2077 if (! IS_DIR_SEPARATOR (endp[-1]))
2079 nstore[endp-startp] = DIR_SEPARATOR;
2080 nstore[endp-startp+1] = 0;
2083 nstore[endp-startp] = 0;
2085 strcat (nstore, progname);
2086 if (! access (nstore, X_OK)
2087 #ifdef HAVE_EXECUTABLE_SUFFIX
2088 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2092 free_split_directories (prog_dirs);
2094 prog_dirs = split_directories (progname, &prog_num);
2100 endp = startp = endp + 1;
2108 /* Remove the program name from comparison of directory names. */
2111 /* Determine if the compiler is installed in the standard location, and if
2112 so, we don't need to specify relative directories. Also, if argv[0]
2113 doesn't contain any directory specifiers, there is not much we can do. */
2115 if (prog_num == bin_num)
2117 for (i = 0; i < bin_num; i++)
2119 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2123 if (prog_num <= 0 || i == bin_num)
2126 free_split_directories (prog_dirs);
2127 free_split_directories (bin_dirs);
2128 prog_dirs = bin_dirs = (char **)0;
2133 prefix_dirs = split_directories (prefix, &prefix_num);
2135 /* Find how many directories are in common between bin_prefix & prefix. */
2136 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2137 for (common = 0; common < n; common++)
2139 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2143 /* If there are no common directories, there can be no relative prefix. */
2146 free_split_directories (prog_dirs);
2147 free_split_directories (bin_dirs);
2148 free_split_directories (prefix_dirs);
2152 /* Build up the pathnames in argv[0]. */
2153 for (i = 0; i < prog_num; i++)
2154 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2156 /* Now build up the ..'s. */
2157 for (i = common; i < n; i++)
2159 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP)-1);
2160 obstack_1grow (&obstack, DIR_SEPARATOR);
2163 /* Put in directories to move over to prefix. */
2164 for (i = common; i < prefix_num; i++)
2165 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2167 free_split_directories (prog_dirs);
2168 free_split_directories (bin_dirs);
2169 free_split_directories (prefix_dirs);
2171 obstack_1grow (&obstack, '\0');
2172 return obstack_finish (&obstack);
2176 /* Check whether NAME can be accessed in MODE. This is like access,
2177 except that it never considers directories to be executable. */
2180 access_check (name, mode)
2188 if (stat (name, &st) < 0
2189 || S_ISDIR (st.st_mode))
2193 return access (name, mode);
2196 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2197 access to check permissions.
2198 Return 0 if not found, otherwise return its name, allocated with malloc. */
2201 find_a_file (pprefix, name, mode)
2202 struct path_prefix *pprefix;
2207 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2208 struct prefix_list *pl;
2209 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2211 #ifdef DEFAULT_ASSEMBLER
2212 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2213 return xstrdup (DEFAULT_ASSEMBLER);
2216 #ifdef DEFAULT_LINKER
2217 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2218 return xstrdup (DEFAULT_LINKER);
2222 len += strlen (machine_suffix);
2224 temp = xmalloc (len);
2226 /* Determine the filename to execute (special case for absolute paths). */
2228 if (IS_DIR_SEPARATOR (*name)
2229 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2230 /* Check for disk name on MS-DOS-based systems. */
2231 || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2235 if (access (name, mode) == 0)
2237 strcpy (temp, name);
2242 for (pl = pprefix->plist; pl; pl = pl->next)
2246 /* Some systems have a suffix for executable files.
2247 So try appending that first. */
2248 if (file_suffix[0] != 0)
2250 strcpy (temp, pl->prefix);
2251 strcat (temp, machine_suffix);
2252 strcat (temp, name);
2253 strcat (temp, file_suffix);
2254 if (access_check (temp, mode) == 0)
2256 if (pl->used_flag_ptr != 0)
2257 *pl->used_flag_ptr = 1;
2262 /* Now try just the name. */
2263 strcpy (temp, pl->prefix);
2264 strcat (temp, machine_suffix);
2265 strcat (temp, name);
2266 if (access_check (temp, mode) == 0)
2268 if (pl->used_flag_ptr != 0)
2269 *pl->used_flag_ptr = 1;
2274 /* Certain prefixes are tried with just the machine type,
2275 not the version. This is used for finding as, ld, etc. */
2276 if (just_machine_suffix && pl->require_machine_suffix == 2)
2278 /* Some systems have a suffix for executable files.
2279 So try appending that first. */
2280 if (file_suffix[0] != 0)
2282 strcpy (temp, pl->prefix);
2283 strcat (temp, just_machine_suffix);
2284 strcat (temp, name);
2285 strcat (temp, file_suffix);
2286 if (access_check (temp, mode) == 0)
2288 if (pl->used_flag_ptr != 0)
2289 *pl->used_flag_ptr = 1;
2294 strcpy (temp, pl->prefix);
2295 strcat (temp, just_machine_suffix);
2296 strcat (temp, name);
2297 if (access_check (temp, mode) == 0)
2299 if (pl->used_flag_ptr != 0)
2300 *pl->used_flag_ptr = 1;
2305 /* Certain prefixes can't be used without the machine suffix
2306 when the machine or version is explicitly specified. */
2307 if (! pl->require_machine_suffix)
2309 /* Some systems have a suffix for executable files.
2310 So try appending that first. */
2311 if (file_suffix[0] != 0)
2313 strcpy (temp, pl->prefix);
2314 strcat (temp, name);
2315 strcat (temp, file_suffix);
2316 if (access_check (temp, mode) == 0)
2318 if (pl->used_flag_ptr != 0)
2319 *pl->used_flag_ptr = 1;
2324 strcpy (temp, pl->prefix);
2325 strcat (temp, name);
2326 if (access_check (temp, mode) == 0)
2328 if (pl->used_flag_ptr != 0)
2329 *pl->used_flag_ptr = 1;
2339 /* Ranking of prefixes in the sort list. -B prefixes are put before
2342 enum path_prefix_priority
2344 PREFIX_PRIORITY_B_OPT,
2345 PREFIX_PRIORITY_LAST
2348 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2349 order according to PRIORITY. Within each PRIORITY, new entries are
2352 If WARN is nonzero, we will warn if no file is found
2353 through this prefix. WARN should point to an int
2354 which will be set to 1 if this entry is used.
2356 COMPONENT is the value to be passed to update_path.
2358 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2359 the complete value of machine_suffix.
2360 2 means try both machine_suffix and just_machine_suffix. */
2363 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2364 struct path_prefix *pprefix;
2366 const char *component;
2367 /* enum prefix_priority */ int priority;
2368 int require_machine_suffix;
2371 struct prefix_list *pl, **prev;
2374 for (prev = &pprefix->plist;
2375 (*prev) != NULL && (*prev)->priority <= priority;
2376 prev = &(*prev)->next)
2379 /* Keep track of the longest prefix */
2381 prefix = update_path (prefix, component);
2382 len = strlen (prefix);
2383 if (len > pprefix->max_len)
2384 pprefix->max_len = len;
2386 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2387 pl->prefix = save_string (prefix, len);
2388 pl->require_machine_suffix = require_machine_suffix;
2389 pl->used_flag_ptr = warn;
2390 pl->priority = priority;
2394 /* Insert after PREV */
2399 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2402 unused_prefix_warnings (pprefix)
2403 struct path_prefix *pprefix;
2405 struct prefix_list *pl = pprefix->plist;
2409 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2411 if (pl->require_machine_suffix && machine_suffix)
2412 error ("file path prefix `%s%s' never used", pl->prefix,
2415 error ("file path prefix `%s' never used", pl->prefix);
2417 /* Prevent duplicate warnings. */
2418 *pl->used_flag_ptr = 1;
2426 /* Execute the command specified by the arguments on the current line of spec.
2427 When using pipes, this includes several piped-together commands
2428 with `|' between them.
2430 Return 0 if successful, -1 if failed. */
2436 int n_commands; /* # of command. */
2440 const char *prog; /* program name. */
2441 const char **argv; /* vector of args. */
2442 int pid; /* pid of process for this command. */
2445 struct command *commands; /* each command buffer with above info. */
2447 /* Count # of piped commands. */
2448 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2449 if (strcmp (argbuf[i], "|") == 0)
2452 /* Get storage for each command. */
2454 = (struct command *) alloca (n_commands * sizeof (struct command));
2456 /* Split argbuf into its separate piped processes,
2457 and record info about each one.
2458 Also search for the programs that are to be run. */
2460 commands[0].prog = argbuf[0]; /* first command. */
2461 commands[0].argv = &argbuf[0];
2462 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2465 commands[0].argv[0] = string;
2467 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2468 if (strcmp (argbuf[i], "|") == 0)
2469 { /* each command. */
2470 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2471 fatal ("-pipe not supported");
2473 argbuf[i] = 0; /* termination of command args. */
2474 commands[n_commands].prog = argbuf[i + 1];
2475 commands[n_commands].argv = &argbuf[i + 1];
2476 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2478 commands[n_commands].argv[0] = string;
2482 argbuf[argbuf_index] = 0;
2484 /* If -v, print what we are about to do, and maybe query. */
2488 /* For help listings, put a blank line between sub-processes. */
2489 if (print_help_list)
2490 fputc ('\n', stderr);
2492 /* Print each piped command as a separate line. */
2493 for (i = 0; i < n_commands ; i++)
2497 for (j = commands[i].argv; *j; j++)
2498 fprintf (stderr, " %s", *j);
2500 /* Print a pipe symbol after all but the last command. */
2501 if (i + 1 != n_commands)
2502 fprintf (stderr, " |");
2503 fprintf (stderr, "\n");
2507 notice ("\nGo ahead? (y or n) ");
2511 while (getchar () != '\n')
2514 if (i != 'y' && i != 'Y')
2519 /* Run each piped subprocess. */
2521 for (i = 0; i < n_commands; i++)
2523 char *errmsg_fmt, *errmsg_arg;
2524 const char *string = commands[i].argv[0];
2526 commands[i].pid = pexecute (string, commands[i].argv,
2527 programname, temp_filename,
2528 &errmsg_fmt, &errmsg_arg,
2529 ((i == 0 ? PEXECUTE_FIRST : 0)
2530 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2531 | (string == commands[i].prog
2532 ? PEXECUTE_SEARCH : 0)
2533 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2535 if (commands[i].pid == -1)
2536 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2538 if (string != commands[i].prog)
2539 free ((PTR) string);
2544 /* Wait for all the subprocesses to finish.
2545 We don't care what order they finish in;
2546 we know that N_COMMANDS waits will get them all.
2547 Ignore subprocesses that we don't know about,
2548 since they can be spawned by the process that exec'ed us. */
2552 #ifdef HAVE_GETRUSAGE
2554 double ut = 0.0, st = 0.0;
2557 for (i = 0; i < n_commands; )
2563 pid = pwait (commands[i].pid, &status, 0);
2567 #ifdef HAVE_GETRUSAGE
2570 /* getrusage returns the total resource usage of all children
2571 up to now. Copy the previous values into prus, get the
2572 current statistics, then take the difference. */
2575 getrusage (RUSAGE_CHILDREN, &rus);
2576 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2577 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2578 ut = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2580 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2581 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2582 st = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2586 for (j = 0; j < n_commands; j++)
2587 if (commands[j].pid == pid)
2590 if (WIFSIGNALED (status))
2593 /* SIGPIPE is a special case. It happens in -pipe mode
2594 when the compiler dies before the preprocessor is
2595 done, or the assembler dies before the compiler is
2596 done. There's generally been an error already, and
2597 this is just fallout. So don't generate another error
2598 unless we would otherwise have succeeded. */
2599 if (WTERMSIG (status) == SIGPIPE
2600 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2605 Internal error: %s (program %s)\n\
2606 Please submit a full bug report.\n\
2607 See %s for instructions.",
2608 strsignal (WTERMSIG (status)), commands[j].prog,
2613 else if (WIFEXITED (status)
2614 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2616 if (WEXITSTATUS (status) > greatest_status)
2617 greatest_status = WEXITSTATUS (status);
2620 #ifdef HAVE_GETRUSAGE
2621 if (report_times && ut + st != 0)
2622 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2631 /* Find all the switches given to us
2632 and make a vector describing them.
2633 The elements of the vector are strings, one per switch given.
2634 If a switch uses following arguments, then the `part1' field
2635 is the switch itself and the `args' field
2636 is a null-terminated vector containing the following arguments.
2637 The `live_cond' field is:
2639 1 if the switch is true in a conditional spec,
2640 -1 if false (overridden by a later switch)
2641 -2 if this switch should be ignored (used in %{<S})
2642 The `validated' field is nonzero if any spec has looked at this switch;
2643 if it remains zero at the end of the run, it must be meaningless. */
2646 #define SWITCH_FALSE -1
2647 #define SWITCH_IGNORE -2
2648 #define SWITCH_LIVE 1
2658 static struct switchstr *switches;
2660 static int n_switches;
2665 const char *language;
2668 /* Also a vector of input files specified. */
2670 static struct infile *infiles;
2672 static int n_infiles;
2674 /* This counts the number of libraries added by lang_specific_driver, so that
2675 we can tell if there were any user supplied any files or libraries. */
2677 static int added_libraries;
2679 /* And a vector of corresponding output files is made up later. */
2681 static const char **outfiles;
2683 /* Used to track if none of the -B paths are used. */
2686 /* Used to track if standard path isn't used and -b or -V is specified. */
2687 static int warn_std;
2689 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2690 static int *warn_std_ptr = 0;
2693 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2695 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2696 is true if we should look for an executable suffix as well. */
2699 convert_filename (name, do_exe)
2709 len = strlen (name);
2711 #ifdef HAVE_OBJECT_SUFFIX
2712 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2714 && name[len - 2] == '.'
2715 && name[len - 1] == 'o')
2717 obstack_grow (&obstack, name, len - 2);
2718 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2719 name = obstack_finish (&obstack);
2723 #ifdef HAVE_EXECUTABLE_SUFFIX
2724 /* If there is no filetype, make it the executable suffix (which includes
2725 the "."). But don't get confused if we have just "-o". */
2726 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2729 for (i = len - 1; i >= 0; i--)
2730 if (IS_DIR_SEPARATOR (name[i]))
2733 for (i++; i < len; i++)
2737 obstack_grow (&obstack, name, len);
2738 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2739 name = obstack_finish (&obstack);
2746 /* Display the command line switches accepted by gcc. */
2750 printf (_("Usage: %s [options] file...\n"), programname);
2751 fputs (_("Options:\n"), stdout);
2753 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2754 fputs (_(" --help Display this information\n"), stdout);
2756 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2757 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2758 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2759 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2760 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2761 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2762 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2763 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2764 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2766 -print-multi-lib Display the mapping between command line options and\n\
2767 multiple library search directories\n"), stdout);
2768 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2769 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2770 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2771 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2772 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2773 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2774 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2775 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2776 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2777 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2778 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2779 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2780 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2781 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2782 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2783 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2784 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2786 -x <language> Specify the language of the following input files\n\
2787 Permissable languages include: c c++ assembler none\n\
2788 'none' means revert to the default behaviour of\n\
2789 guessing the language based on the file's extension\n\
2793 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2794 the various sub-processes invoked by %s. In order to pass other options\n\
2795 on to these processes the -W<letter> options must be used.\n\
2798 /* The rest of the options are displayed by invocations of the various
2803 add_preprocessor_option (option, len)
2804 const char * option;
2807 n_preprocessor_options++;
2809 if (! preprocessor_options)
2810 preprocessor_options
2811 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2813 preprocessor_options
2814 = (char **) xrealloc (preprocessor_options,
2815 n_preprocessor_options * sizeof (char *));
2817 preprocessor_options [n_preprocessor_options - 1] =
2818 save_string (option, len);
2822 add_assembler_option (option, len)
2823 const char * option;
2826 n_assembler_options++;
2828 if (! assembler_options)
2830 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2833 = (char **) xrealloc (assembler_options,
2834 n_assembler_options * sizeof (char *));
2836 assembler_options [n_assembler_options - 1] = save_string (option, len);
2840 add_linker_option (option, len)
2841 const char * option;
2846 if (! linker_options)
2848 = (char **) xmalloc (n_linker_options * sizeof (char *));
2851 = (char **) xrealloc (linker_options,
2852 n_linker_options * sizeof (char *));
2854 linker_options [n_linker_options - 1] = save_string (option, len);
2857 /* Create the vector `switches' and its contents.
2858 Store its length in `n_switches'. */
2861 process_command (argc, argv)
2868 const char *spec_lang = 0;
2869 int last_language_n_infiles;
2872 int lang_n_infiles = 0;
2874 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2878 added_libraries = 0;
2880 /* Figure compiler version from version string. */
2882 compiler_version = temp1 = xstrdup (version_string);
2884 for (; *temp1; ++temp1)
2893 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2894 see if we can create it from the pathname specified in argv[0]. */
2897 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2898 if (!gcc_exec_prefix)
2900 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2901 standard_exec_prefix);
2902 if (gcc_exec_prefix)
2903 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2907 if (gcc_exec_prefix)
2909 int len = strlen (gcc_exec_prefix);
2910 if (len > (int) sizeof ("/lib/gcc-lib/")-1
2911 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2913 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2914 if (IS_DIR_SEPARATOR (*temp)
2915 && strncmp (temp+1, "lib", 3) == 0
2916 && IS_DIR_SEPARATOR (temp[4])
2917 && strncmp (temp+5, "gcc-lib", 7) == 0)
2918 len -= sizeof ("/lib/gcc-lib/") - 1;
2921 set_std_prefix (gcc_exec_prefix, len);
2922 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2923 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2924 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2925 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2928 /* COMPILER_PATH and LIBRARY_PATH have values
2929 that are lists of directory names with colons. */
2931 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2934 const char *startp, *endp;
2935 char *nstore = (char *) alloca (strlen (temp) + 3);
2937 startp = endp = temp;
2940 if (*endp == PATH_SEPARATOR || *endp == 0)
2942 strncpy (nstore, startp, endp-startp);
2944 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2945 else if (!IS_DIR_SEPARATOR (endp[-1]))
2947 nstore[endp-startp] = DIR_SEPARATOR;
2948 nstore[endp-startp+1] = 0;
2951 nstore[endp-startp] = 0;
2952 add_prefix (&exec_prefixes, nstore, 0,
2953 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2954 add_prefix (&include_prefixes,
2955 concat (nstore, "include", NULL_PTR),
2956 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2959 endp = startp = endp + 1;
2966 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2967 if (temp && *cross_compile == '0')
2969 const char *startp, *endp;
2970 char *nstore = (char *) alloca (strlen (temp) + 3);
2972 startp = endp = temp;
2975 if (*endp == PATH_SEPARATOR || *endp == 0)
2977 strncpy (nstore, startp, endp-startp);
2979 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2980 else if (!IS_DIR_SEPARATOR (endp[-1]))
2982 nstore[endp-startp] = DIR_SEPARATOR;
2983 nstore[endp-startp+1] = 0;
2986 nstore[endp-startp] = 0;
2987 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2988 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2991 endp = startp = endp + 1;
2998 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2999 GET_ENV_PATH_LIST (temp, "LPATH");
3000 if (temp && *cross_compile == '0')
3002 const char *startp, *endp;
3003 char *nstore = (char *) alloca (strlen (temp) + 3);
3005 startp = endp = temp;
3008 if (*endp == PATH_SEPARATOR || *endp == 0)
3010 strncpy (nstore, startp, endp-startp);
3012 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3013 else if (!IS_DIR_SEPARATOR (endp[-1]))
3015 nstore[endp-startp] = DIR_SEPARATOR;
3016 nstore[endp-startp+1] = 0;
3019 nstore[endp-startp] = 0;
3020 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3021 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3024 endp = startp = endp + 1;
3031 /* Convert new-style -- options to old-style. */
3032 translate_options (&argc, &argv);
3034 /* Do language-specific adjustment/addition of flags. */
3035 lang_specific_driver (&argc, &argv, &added_libraries);
3037 /* Scan argv twice. Here, the first time, just count how many switches
3038 there will be in their vector, and how many input files in theirs.
3039 Here we also parse the switches that cc itself uses (e.g. -v). */
3041 for (i = 1; i < argc; i++)
3043 if (! strcmp (argv[i], "-dumpspecs"))
3045 struct spec_list *sl;
3047 for (sl = specs; sl; sl = sl->next)
3048 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3049 if (link_command_spec)
3050 printf ("*link_command:\n%s\n\n", link_command_spec);
3053 else if (! strcmp (argv[i], "-dumpversion"))
3055 printf ("%s\n", spec_version);
3058 else if (! strcmp (argv[i], "-dumpmachine"))
3060 printf ("%s\n", spec_machine);
3063 else if (strcmp (argv[i], "-fhelp") == 0)
3065 /* translate_options () has turned --help into -fhelp. */
3066 print_help_list = 1;
3068 /* We will be passing a dummy file on to the sub-processes. */
3072 add_preprocessor_option ("--help", 6);
3073 add_assembler_option ("--help", 6);
3074 add_linker_option ("--help", 6);
3076 else if (! strcmp (argv[i], "-pass-exit-codes"))
3078 pass_exit_codes = 1;
3081 else if (! strcmp (argv[i], "-print-search-dirs"))
3082 print_search_dirs = 1;
3083 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3084 print_file_name = "libgcc.a";
3085 else if (! strncmp (argv[i], "-print-file-name=", 17))
3086 print_file_name = argv[i] + 17;
3087 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3088 print_prog_name = argv[i] + 17;
3089 else if (! strcmp (argv[i], "-print-multi-lib"))
3090 print_multi_lib = 1;
3091 else if (! strcmp (argv[i], "-print-multi-directory"))
3092 print_multi_directory = 1;
3093 else if (! strncmp (argv[i], "-Wa,", 4))
3096 /* Pass the rest of this option to the assembler. */
3098 /* Split the argument at commas. */
3100 for (j = 4; argv[i][j]; j++)
3101 if (argv[i][j] == ',')
3103 add_assembler_option (argv[i] + prev, j - prev);
3107 /* Record the part after the last comma. */
3108 add_assembler_option (argv[i] + prev, j - prev);
3110 else if (! strncmp (argv[i], "-Wp,", 4))
3113 /* Pass the rest of this option to the preprocessor. */
3115 /* Split the argument at commas. */
3117 for (j = 4; argv[i][j]; j++)
3118 if (argv[i][j] == ',')
3120 add_preprocessor_option (argv[i] + prev, j - prev);
3124 /* Record the part after the last comma. */
3125 add_preprocessor_option (argv[i] + prev, j - prev);
3127 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3128 /* The +e options to the C++ front-end. */
3130 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3133 /* Split the argument at commas. */
3134 for (j = 3; argv[i][j]; j++)
3135 n_infiles += (argv[i][j] == ',');
3137 else if (strcmp (argv[i], "-Xlinker") == 0)
3140 fatal ("argument to `-Xlinker' is missing");
3145 else if (strncmp (argv[i], "-l", 2) == 0)
3147 else if (strcmp (argv[i], "-save-temps") == 0)
3149 save_temps_flag = 1;
3152 else if (strcmp (argv[i], "-specs") == 0)
3154 struct user_specs *user = (struct user_specs *)
3155 xmalloc (sizeof (struct user_specs));
3157 fatal ("argument to `-specs' is missing");
3159 user->next = (struct user_specs *)0;
3160 user->filename = argv[i];
3161 if (user_specs_tail)
3162 user_specs_tail->next = user;
3164 user_specs_head = user;
3165 user_specs_tail = user;
3167 else if (strncmp (argv[i], "-specs=", 7) == 0)
3169 struct user_specs *user = (struct user_specs *)
3170 xmalloc (sizeof (struct user_specs));
3171 if (strlen (argv[i]) == 7)
3172 fatal ("argument to `-specs=' is missing");
3174 user->next = (struct user_specs *)0;
3175 user->filename = argv[i]+7;
3176 if (user_specs_tail)
3177 user_specs_tail->next = user;
3179 user_specs_head = user;
3180 user_specs_tail = user;
3182 else if (strcmp (argv[i], "-time") == 0)
3184 else if (argv[i][0] == '-' && argv[i][1] != 0)
3186 register const char *p = &argv[i][1];
3187 register int c = *p;
3193 if (p[1] == 0 && i + 1 == argc)
3194 fatal ("argument to `-b' is missing");
3196 spec_machine = argv[++i];
3198 spec_machine = p + 1;
3200 warn_std_ptr = &warn_std;
3206 if (p[1] == 0 && i + 1 == argc)
3207 fatal ("argument to `-B' is missing");
3213 /* As a kludge, if the arg is "[foo/]stageN/", just
3214 add "[foo/]include" to the include prefix. */
3215 int len = strlen (value);
3218 && (IS_DIR_SEPARATOR (value[len - 8]))))
3219 && strncmp (value + len - 7, "stage", 5) == 0
3220 && ISDIGIT (value[len - 2])
3221 && (IS_DIR_SEPARATOR (value[len - 1])))
3224 add_prefix (&include_prefixes, "include", NULL_PTR,
3225 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3228 char *string = xmalloc (len + 1);
3229 strncpy (string, value, len-7);
3230 strcpy (string+len-7, "include");
3231 add_prefix (&include_prefixes, string, NULL_PTR,
3232 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3236 add_prefix (&exec_prefixes, value, NULL_PTR,
3237 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3238 add_prefix (&startfile_prefixes, value, NULL_PTR,
3239 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3240 add_prefix (&include_prefixes, concat (value, "include",
3243 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3248 case 'v': /* Print our subcommands and print versions. */
3250 /* If they do anything other than exactly `-v', don't set
3251 verbose_flag; rather, continue on to give the error. */
3259 if (p[1] == 0 && i + 1 == argc)
3260 fatal ("argument to `-V' is missing");
3262 spec_version = argv[++i];
3264 spec_version = p + 1;
3265 compiler_version = spec_version;
3266 warn_std_ptr = &warn_std;
3268 /* Validate the version number. Use the same checks
3269 done when inserting it into a spec.
3271 The format of the version string is
3272 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3274 const char *v = compiler_version;
3276 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3277 while (! ISDIGIT (*v))
3280 if (v > compiler_version && v[-1] != '-')
3281 fatal ("invalid version number format");
3283 /* Set V after the first period. */
3284 while (ISDIGIT (*v))
3288 fatal ("invalid version number format");
3291 while (ISDIGIT (*v))
3294 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3295 fatal ("invalid version number format");
3311 #if defined(HAVE_EXECUTABLE_SUFFIX)
3316 /* Forward scan, just in case -S or -c is specified
3323 if (argv[j][0] == '-')
3325 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3331 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3332 j += skip - (argv[j][2] != 0);
3333 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3340 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3342 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3344 argv[i] = convert_filename (argv[i], ! have_c);
3352 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3353 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3354 else if (WORD_SWITCH_TAKES_ARG (p))
3355 i += WORD_SWITCH_TAKES_ARG (p);
3365 if (have_c && have_o && lang_n_infiles > 1)
3366 fatal ("cannot specify -o with -c or -S and multiple compilations");
3368 /* Set up the search paths before we go looking for config files. */
3370 /* These come before the md prefixes so that we will find gcc's subcommands
3371 (such as cpp) rather than those of the host system. */
3372 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3373 as well as trying the machine and the version. */
3375 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3376 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3377 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3378 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3379 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3380 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3383 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3384 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3385 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3386 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3388 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3389 dir_separator_str, NULL_PTR);
3391 /* If tooldir is relative, base it on exec_prefixes. A relative
3392 tooldir lets us move the installed tree as a unit.
3394 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3395 directories, so that we can search both the user specified directory
3396 and the standard place. */
3398 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3400 if (gcc_exec_prefix)
3402 char *gcc_exec_tooldir_prefix
3403 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3404 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3406 add_prefix (&exec_prefixes,
3407 concat (gcc_exec_tooldir_prefix, "bin",
3408 dir_separator_str, NULL_PTR),
3409 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3410 add_prefix (&startfile_prefixes,
3411 concat (gcc_exec_tooldir_prefix, "lib",
3412 dir_separator_str, NULL_PTR),
3413 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3416 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3417 dir_separator_str, spec_version,
3418 dir_separator_str, tooldir_prefix, NULL_PTR);
3421 add_prefix (&exec_prefixes,
3422 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3423 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3424 add_prefix (&startfile_prefixes,
3425 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3426 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3428 /* More prefixes are enabled in main, after we read the specs file
3429 and determine whether this is cross-compilation or not. */
3432 /* Then create the space for the vectors and scan again. */
3434 switches = ((struct switchstr *)
3435 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3436 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3439 last_language_n_infiles = -1;
3441 /* This, time, copy the text of each switch and store a pointer
3442 to the copy in the vector of switches.
3443 Store all the infiles in their vector. */
3445 for (i = 1; i < argc; i++)
3447 /* Just skip the switches that were handled by the preceding loop. */
3448 if (! strncmp (argv[i], "-Wa,", 4))
3450 else if (! strncmp (argv[i], "-Wp,", 4))
3452 else if (! strcmp (argv[i], "-pass-exit-codes"))
3454 else if (! strcmp (argv[i], "-print-search-dirs"))
3456 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3458 else if (! strncmp (argv[i], "-print-file-name=", 17))
3460 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3462 else if (! strcmp (argv[i], "-print-multi-lib"))
3464 else if (! strcmp (argv[i], "-print-multi-directory"))
3466 else if (strcmp (argv[i], "-fhelp") == 0)
3470 /* Create a dummy input file, so that we can pass --help on to
3471 the various sub-processes. */
3472 infiles[n_infiles].language = "c";
3473 infiles[n_infiles++].name = "help-dummy";
3475 /* Preserve the --help switch so that it can be caught by the
3477 switches[n_switches].part1 = "--help";
3478 switches[n_switches].args = 0;
3479 switches[n_switches].live_cond = SWITCH_OK;
3480 switches[n_switches].validated = 0;
3485 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3487 /* Compensate for the +e options to the C++ front-end;
3488 they're there simply for cfront call-compatibility. We do
3489 some magic in default_compilers to pass them down properly.
3490 Note we deliberately start at the `+' here, to avoid passing
3491 -e0 or -e1 down into the linker. */
3492 switches[n_switches].part1 = &argv[i][0];
3493 switches[n_switches].args = 0;
3494 switches[n_switches].live_cond = SWITCH_OK;
3495 switches[n_switches].validated = 0;
3498 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3501 /* Split the argument at commas. */
3503 for (j = 4; argv[i][j]; j++)
3504 if (argv[i][j] == ',')
3506 infiles[n_infiles].language = "*";
3507 infiles[n_infiles++].name
3508 = save_string (argv[i] + prev, j - prev);
3511 /* Record the part after the last comma. */
3512 infiles[n_infiles].language = "*";
3513 infiles[n_infiles++].name = argv[i] + prev;
3515 else if (strcmp (argv[i], "-Xlinker") == 0)
3517 infiles[n_infiles].language = "*";
3518 infiles[n_infiles++].name = argv[++i];
3520 else if (strncmp (argv[i], "-l", 2) == 0)
3522 infiles[n_infiles].language = "*";
3523 infiles[n_infiles++].name = argv[i];
3525 else if (strcmp (argv[i], "-specs") == 0)
3527 else if (strncmp (argv[i], "-specs=", 7) == 0)
3529 else if (strcmp (argv[i], "-time") == 0)
3531 else if ((save_temps_flag || report_times)
3532 && strcmp (argv[i], "-pipe") == 0)
3534 /* -save-temps overrides -pipe, so that temp files are produced */
3535 if (save_temps_flag)
3536 error ("Warning: -pipe ignored since -save-temps specified");
3537 /* -time overrides -pipe because we can't get correct stats when
3538 multiple children are running at once. */
3539 else if (report_times)
3540 error ("Warning: -pipe ignored since -time specified");
3542 else if (argv[i][0] == '-' && argv[i][1] != 0)
3544 const char *p = &argv[i][1];
3549 if (p[1] == 0 && i + 1 == argc)
3550 fatal ("argument to `-x' is missing");
3552 spec_lang = argv[++i];
3555 if (! strcmp (spec_lang, "none"))
3556 /* Suppress the warning if -xnone comes after the last input
3557 file, because alternate command interfaces like g++ might
3558 find it useful to place -xnone after each input file. */
3561 last_language_n_infiles = n_infiles;
3564 switches[n_switches].part1 = p;
3565 /* Deal with option arguments in separate argv elements. */
3566 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3567 || WORD_SWITCH_TAKES_ARG (p))
3570 int n_args = WORD_SWITCH_TAKES_ARG (p);
3574 /* Count only the option arguments in separate argv elements. */
3575 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3577 if (i + n_args >= argc)
3578 fatal ("argument to `-%s' is missing", p);
3579 switches[n_switches].args
3580 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3582 switches[n_switches].args[j++] = argv[++i];
3583 /* Null-terminate the vector. */
3584 switches[n_switches].args[j] = 0;
3586 else if (index (switches_need_spaces, c))
3588 /* On some systems, ld cannot handle some options without
3589 a space. So split the option from its argument. */
3590 char *part1 = (char *) xmalloc (2);
3595 switches[n_switches].part1 = part1;
3596 switches[n_switches].args
3597 = (const char **) xmalloc (2 * sizeof (const char *));
3598 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3599 strcpy (tmp, &p[1]);
3600 switches[n_switches].args[1] = 0;
3603 switches[n_switches].args = 0;
3605 switches[n_switches].live_cond = SWITCH_OK;
3606 switches[n_switches].validated = 0;
3607 /* This is always valid, since gcc.c itself understands it. */
3608 if (!strcmp (p, "save-temps"))
3609 switches[n_switches].validated = 1;
3612 char ch = switches[n_switches].part1[0];
3613 if (ch == 'V' || ch == 'b' || ch == 'B')
3614 switches[n_switches].validated = 1;
3620 #ifdef HAVE_OBJECT_SUFFIX
3621 argv[i] = convert_filename (argv[i], 0);
3624 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3626 perror_with_name (argv[i]);
3631 infiles[n_infiles].language = spec_lang;
3632 infiles[n_infiles++].name = argv[i];
3637 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3638 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3640 switches[n_switches].part1 = 0;
3641 infiles[n_infiles].name = 0;
3644 /* Process a spec string, accumulating and running commands. */
3646 /* These variables describe the input file name.
3647 input_file_number is the index on outfiles of this file,
3648 so that the output file name can be stored for later use by %o.
3649 input_basename is the start of the part of the input file
3650 sans all directory names, and basename_length is the number
3651 of characters starting there excluding the suffix .c or whatever. */
3653 const char *input_filename;
3654 static int input_file_number;
3655 size_t input_filename_length;
3656 static int basename_length;
3657 static int suffixed_basename_length;
3658 static const char *input_basename;
3659 static const char *input_suffix;
3661 /* These are variables used within do_spec and do_spec_1. */
3663 /* Nonzero if an arg has been started and not yet terminated
3664 (with space, tab or newline). */
3665 static int arg_going;
3667 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3668 is a temporary file name. */
3669 static int delete_this_arg;
3671 /* Nonzero means %w has been seen; the next arg to be terminated
3672 is the output file name of this compilation. */
3673 static int this_is_output_file;
3675 /* Nonzero means %s has been seen; the next arg to be terminated
3676 is the name of a library file and we should try the standard
3677 search dirs for it. */
3678 static int this_is_library_file;
3680 /* Nonzero means that the input of this command is coming from a pipe. */
3681 static int input_from_pipe;
3683 /* Process the spec SPEC and run the commands specified therein.
3684 Returns 0 if the spec is successfully processed; -1 if failed. */
3694 delete_this_arg = 0;
3695 this_is_output_file = 0;
3696 this_is_library_file = 0;
3697 input_from_pipe = 0;
3699 value = do_spec_1 (spec, 0, NULL_PTR);
3701 /* Force out any unfinished command.
3702 If -pipe, this forces out the last command if it ended in `|'. */
3705 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3708 if (argbuf_index > 0)
3715 /* Process the sub-spec SPEC as a portion of a larger spec.
3716 This is like processing a whole spec except that we do
3717 not initialize at the beginning and we do not supply a
3718 newline by default at the end.
3719 INSWITCH nonzero means don't process %-sequences in SPEC;
3720 in this case, % is treated as an ordinary character.
3721 This is used while substituting switches.
3722 INSWITCH nonzero also causes SPC not to terminate an argument.
3724 Value is zero unless a line was finished
3725 and the command on that line reported an error. */
3728 do_spec_1 (spec, inswitch, soft_matched_part)
3731 const char *soft_matched_part;
3733 register const char *p = spec;
3740 /* If substituting a switch, treat all chars like letters.
3741 Otherwise, NL, SPC, TAB and % are special. */
3742 switch (inswitch ? 'a' : c)
3745 /* End of line: finish any pending argument,
3746 then run the pending command if one has been started. */
3749 obstack_1grow (&obstack, 0);
3750 string = obstack_finish (&obstack);
3751 if (this_is_library_file)
3752 string = find_file (string);
3753 store_arg (string, delete_this_arg, this_is_output_file);
3754 if (this_is_output_file)
3755 outfiles[input_file_number] = string;
3759 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3761 for (i = 0; i < n_switches; i++)
3762 if (!strcmp (switches[i].part1, "pipe"))
3765 /* A `|' before the newline means use a pipe here,
3766 but only if -pipe was specified.
3767 Otherwise, execute now and don't pass the `|' as an arg. */
3770 input_from_pipe = 1;
3771 switches[i].validated = 1;
3778 if (argbuf_index > 0)
3784 /* Reinitialize for a new command, and for a new argument. */
3787 delete_this_arg = 0;
3788 this_is_output_file = 0;
3789 this_is_library_file = 0;
3790 input_from_pipe = 0;
3794 /* End any pending argument. */
3797 obstack_1grow (&obstack, 0);
3798 string = obstack_finish (&obstack);
3799 if (this_is_library_file)
3800 string = find_file (string);
3801 store_arg (string, delete_this_arg, this_is_output_file);
3802 if (this_is_output_file)
3803 outfiles[input_file_number] = string;
3807 obstack_1grow (&obstack, c);
3813 /* Space or tab ends an argument if one is pending. */
3816 obstack_1grow (&obstack, 0);
3817 string = obstack_finish (&obstack);
3818 if (this_is_library_file)
3819 string = find_file (string);
3820 store_arg (string, delete_this_arg, this_is_output_file);
3821 if (this_is_output_file)
3822 outfiles[input_file_number] = string;
3824 /* Reinitialize for a new argument. */
3826 delete_this_arg = 0;
3827 this_is_output_file = 0;
3828 this_is_library_file = 0;
3835 fatal ("Invalid specification! Bug in cc.");
3838 obstack_grow (&obstack, input_basename, basename_length);
3843 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3848 delete_this_arg = 2;
3851 /* Dump out the directories specified with LIBRARY_PATH,
3852 followed by the absolute directories
3853 that we search for startfiles. */
3856 struct prefix_list *pl = startfile_prefixes.plist;
3857 size_t bufsize = 100;
3858 char *buffer = (char *) xmalloc (bufsize);
3861 for (; pl; pl = pl->next)
3863 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3864 /* Used on systems which record the specified -L dirs
3865 and use them to search for dynamic linking. */
3866 /* Relative directories always come from -B,
3867 and it is better not to use them for searching
3868 at run time. In particular, stage1 loses. */
3869 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3872 /* Try subdirectory if there is one. */
3873 if (multilib_dir != NULL)
3877 if (strlen (pl->prefix) + strlen (machine_suffix)
3879 bufsize = (strlen (pl->prefix)
3880 + strlen (machine_suffix)) * 2 + 1;
3881 buffer = (char *) xrealloc (buffer, bufsize);
3882 strcpy (buffer, pl->prefix);
3883 strcat (buffer, machine_suffix);
3884 if (is_directory (buffer, multilib_dir, 1))
3886 do_spec_1 ("-L", 0, NULL_PTR);
3887 #ifdef SPACE_AFTER_L_OPTION
3888 do_spec_1 (" ", 0, NULL_PTR);
3890 do_spec_1 (buffer, 1, NULL_PTR);
3891 do_spec_1 (multilib_dir, 1, NULL_PTR);
3892 /* Make this a separate argument. */
3893 do_spec_1 (" ", 0, NULL_PTR);
3896 if (!pl->require_machine_suffix)
3898 if (is_directory (pl->prefix, multilib_dir, 1))
3900 do_spec_1 ("-L", 0, NULL_PTR);
3901 #ifdef SPACE_AFTER_L_OPTION
3902 do_spec_1 (" ", 0, NULL_PTR);
3904 do_spec_1 (pl->prefix, 1, NULL_PTR);
3905 do_spec_1 (multilib_dir, 1, NULL_PTR);
3906 /* Make this a separate argument. */
3907 do_spec_1 (" ", 0, NULL_PTR);
3913 if (is_directory (pl->prefix, machine_suffix, 1))
3915 do_spec_1 ("-L", 0, NULL_PTR);
3916 #ifdef SPACE_AFTER_L_OPTION
3917 do_spec_1 (" ", 0, NULL_PTR);
3919 do_spec_1 (pl->prefix, 1, NULL_PTR);
3920 /* Remove slash from machine_suffix. */
3921 if (strlen (machine_suffix) >= bufsize)
3922 bufsize = strlen (machine_suffix) * 2 + 1;
3923 buffer = (char *) xrealloc (buffer, bufsize);
3924 strcpy (buffer, machine_suffix);
3925 idx = strlen (buffer);
3926 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3927 buffer[idx - 1] = 0;
3928 do_spec_1 (buffer, 1, NULL_PTR);
3929 /* Make this a separate argument. */
3930 do_spec_1 (" ", 0, NULL_PTR);
3933 if (!pl->require_machine_suffix)
3935 if (is_directory (pl->prefix, "", 1))
3937 do_spec_1 ("-L", 0, NULL_PTR);
3938 #ifdef SPACE_AFTER_L_OPTION
3939 do_spec_1 (" ", 0, NULL_PTR);
3941 /* Remove slash from pl->prefix. */
3942 if (strlen (pl->prefix) >= bufsize)
3943 bufsize = strlen (pl->prefix) * 2 + 1;
3944 buffer = (char *) xrealloc (buffer, bufsize);
3945 strcpy (buffer, pl->prefix);
3946 idx = strlen (buffer);
3947 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3948 buffer[idx - 1] = 0;
3949 do_spec_1 (buffer, 1, NULL_PTR);
3950 /* Make this a separate argument. */
3951 do_spec_1 (" ", 0, NULL_PTR);
3960 /* %efoo means report an error with `foo' as error message
3961 and don't execute any more commands for this file. */
3965 while (*p != 0 && *p != '\n') p++;
3966 buf = (char *) alloca (p - q + 1);
3967 strncpy (buf, q, p - q);
3977 if (save_temps_flag)
3979 obstack_grow (&obstack, input_basename, basename_length);
3980 delete_this_arg = 0;
3984 #ifdef MKTEMP_EACH_FILE
3985 /* ??? This has a problem: the total number of
3986 values mktemp can return is limited.
3987 That matters for the names of object files.
3988 In 2.4, do something about that. */
3989 struct temp_name *t;
3991 const char *suffix = p;
3992 char *saved_suffix = NULL;
3994 while (*p == '.' || ISALPHA ((unsigned char)*p))
3996 suffix_length = p - suffix;
3997 if (p[0] == '%' && p[1] == 'O')
4000 /* We don't support extra suffix characters after %O. */
4001 if (*p == '.' || ISALPHA ((unsigned char)*p))
4003 if (suffix_length == 0)
4004 suffix = OBJECT_SUFFIX;
4008 = (char *) xmalloc (suffix_length
4009 + strlen (OBJECT_SUFFIX));
4010 strncpy (saved_suffix, suffix, suffix_length);
4011 strcpy (saved_suffix + suffix_length,
4014 suffix_length += strlen (OBJECT_SUFFIX);
4017 /* See if we already have an association of %g/%u/%U and
4019 for (t = temp_names; t; t = t->next)
4020 if (t->length == suffix_length
4021 && strncmp (t->suffix, suffix, suffix_length) == 0
4022 && t->unique == (c != 'g'))
4025 /* Make a new association if needed. %u requires one. */
4026 if (t == 0 || c == 'u')
4030 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4031 t->next = temp_names;
4034 t->length = suffix_length;
4035 t->suffix = save_string (suffix, suffix_length);
4036 t->unique = (c != 'g');
4037 temp_filename = make_temp_file (t->suffix);
4038 temp_filename_length = strlen (temp_filename);
4039 t->filename = temp_filename;
4040 t->filename_length = temp_filename_length;
4044 free (saved_suffix);
4046 obstack_grow (&obstack, t->filename, t->filename_length);
4047 delete_this_arg = 1;
4049 obstack_grow (&obstack, temp_filename, temp_filename_length);
4050 if (c == 'u' || c == 'U')
4056 sprintf (buff, "%d", unique);
4057 obstack_grow (&obstack, buff, strlen (buff));
4060 delete_this_arg = 1;
4066 obstack_grow (&obstack, input_filename, input_filename_length);
4072 struct prefix_list *pl = include_prefixes.plist;
4074 if (gcc_exec_prefix)
4076 do_spec_1 ("-iprefix", 1, NULL_PTR);
4077 /* Make this a separate argument. */
4078 do_spec_1 (" ", 0, NULL_PTR);
4079 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4080 do_spec_1 (" ", 0, NULL_PTR);
4083 for (; pl; pl = pl->next)
4085 do_spec_1 ("-isystem", 1, NULL_PTR);
4086 /* Make this a separate argument. */
4087 do_spec_1 (" ", 0, NULL_PTR);
4088 do_spec_1 (pl->prefix, 1, NULL_PTR);
4089 do_spec_1 (" ", 0, NULL_PTR);
4096 int max = n_infiles;
4097 max += lang_specific_extra_outfiles;
4099 for (i = 0; i < max; i++)
4101 store_arg (outfiles[i], 0, 0);
4106 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4111 this_is_library_file = 1;
4115 this_is_output_file = 1;
4120 int cur_index = argbuf_index;
4121 /* Handle the {...} following the %W. */
4124 p = handle_braces (p + 1);
4127 /* If any args were output, mark the last one for deletion
4129 if (argbuf_index != cur_index)
4130 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4134 /* %x{OPTION} records OPTION for %X to output. */
4140 /* Skip past the option value and make a copy. */
4145 string = save_string (p1 + 1, p - p1 - 2);
4147 /* See if we already recorded this option. */
4148 for (i = 0; i < n_linker_options; i++)
4149 if (! strcmp (string, linker_options[i]))
4155 /* This option is new; add it. */
4156 add_linker_option (string, strlen (string));
4160 /* Dump out the options accumulated previously using %x. */
4162 for (i = 0; i < n_linker_options; i++)
4164 do_spec_1 (linker_options[i], 1, NULL_PTR);
4165 /* Make each accumulated option a separate argument. */
4166 do_spec_1 (" ", 0, NULL_PTR);
4170 /* Dump out the options accumulated previously using -Wa,. */
4172 for (i = 0; i < n_assembler_options; i++)
4174 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4175 /* Make each accumulated option a separate argument. */
4176 do_spec_1 (" ", 0, NULL_PTR);
4180 /* Dump out the options accumulated previously using -Wp,. */
4182 for (i = 0; i < n_preprocessor_options; i++)
4184 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4185 /* Make each accumulated option a separate argument. */
4186 do_spec_1 (" ", 0, NULL_PTR);
4190 /* Here are digits and numbers that just process
4191 a certain constant string as a spec. */
4194 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4200 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4206 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4212 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4218 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4224 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4230 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4236 value = do_spec_1 (link_spec, 0, NULL_PTR);
4242 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4248 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4255 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4259 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4263 if (! strncmp (y, "-D", 2))
4264 /* Copy the whole option. */
4265 while (*y && *y != ' ' && *y != '\t')
4267 else if (*y == ' ' || *y == '\t')
4268 /* Copy whitespace to the result. */
4270 /* Don't copy other options. */
4277 value = do_spec_1 (buf, 0, NULL_PTR);
4285 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4289 /* Copy all of CPP_PREDEFINES into BUF,
4290 but force them all into the reserved name space if they
4291 aren't already there. The reserved name space is all
4292 identifiers beginning with two underscores or with one
4293 underscore and a capital letter. We do the forcing by
4294 adding up to two underscores to the beginning and end
4295 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4300 if (! strncmp (y, "-D", 2))
4309 && ! ISUPPER ((unsigned char)*(y+1))))
4311 /* Stick __ at front of macro name. */
4315 /* Arrange to stick __ at the end as well. */
4319 /* Copy the macro name. */
4320 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4333 /* Copy the value given, if any. */
4334 while (*y && *y != ' ' && *y != '\t')
4337 else if (*y == ' ' || *y == '\t')
4338 /* Copy whitespace to the result. */
4340 /* Don't copy -A options */
4346 /* Copy all of CPP_PREDEFINES into BUF,
4347 but put __ after every -D. */
4351 if (! strncmp (y, "-D", 2))
4357 && ! ISUPPER ((unsigned char)*(y+1))))
4359 /* Stick -D__ at front of macro name. */
4366 /* Copy the macro name. */
4367 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4370 /* Copy the value given, if any. */
4371 while (*y && *y != ' ' && *y != '\t')
4376 /* Do not copy this macro - we have just done it before */
4377 while (*y && *y != ' ' && *y != '\t')
4381 else if (*y == ' ' || *y == '\t')
4382 /* Copy whitespace to the result. */
4384 /* Don't copy -A options. */
4390 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4394 if (! strncmp (y, "-A", 2))
4395 /* Copy the whole option. */
4396 while (*y && *y != ' ' && *y != '\t')
4398 else if (*y == ' ' || *y == '\t')
4399 /* Copy whitespace to the result. */
4401 /* Don't copy other options. */
4408 value = do_spec_1 (buf, 0, NULL_PTR);
4415 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4420 /* Here we define characters other than letters and digits. */
4423 p = handle_braces (p);
4429 obstack_1grow (&obstack, '%');
4433 if (soft_matched_part)
4435 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4436 do_spec_1 (" ", 0, NULL_PTR);
4439 /* Catch the case where a spec string contains something like
4440 '%{foo:%*}'. ie there is no * in the pattern on the left
4441 hand side of the :. */
4442 error ("Spec failure: '%%*' has not been initialised by pattern match");
4445 /* Process a string found as the value of a spec given by name.
4446 This feature allows individual machine descriptions
4447 to add and use their own specs.
4448 %[...] modifies -D options the way %P does;
4449 %(...) uses the spec unmodified. */
4451 error ("Warning: use of obsolete %%[ operator in specs");
4454 const char *name = p;
4455 struct spec_list *sl;
4458 /* The string after the S/P is the name of a spec that is to be
4460 while (*p && *p != ')' && *p != ']')
4463 /* See if it's in the list. */
4464 for (len = p - name, sl = specs; sl; sl = sl->next)
4465 if (sl->name_len == len && !strncmp (sl->name, name, len))
4467 name = *(sl->ptr_spec);
4469 notice ("Processing spec %c%s%c, which is '%s'\n",
4470 c, sl->name, (c == '(') ? ')' : ']', name);
4479 value = do_spec_1 (name, 0, NULL_PTR);
4485 char *x = (char *) alloca (strlen (name) * 2 + 1);
4487 const char *y = name;
4490 /* Copy all of NAME into BUF, but put __ after
4491 every -D and at the end of each arg. */
4494 if (! strncmp (y, "-D", 2))
4504 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4505 || *y == '}' || *y == 0))
4518 value = do_spec_1 (buf, 0, NULL_PTR);
4524 /* Discard the closing paren or bracket. */
4532 int c1 = *p++; /* Select first or second version number. */
4533 const char *v = compiler_version;
4535 static const char zeroc = '0';
4537 /* The format of the version string is
4538 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4540 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4541 while (! ISDIGIT (*v))
4543 if (v > compiler_version && v[-1] != '-')
4546 /* If desired, advance to second version number. */
4549 /* Set V after the first period. */
4550 while (ISDIGIT (*v))
4557 /* If desired, advance to third version number.
4558 But don't complain if it's not present */
4561 /* Set V after the second period. */
4562 while (ISDIGIT (*v))
4564 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4570 /* Set Q at the next period or at the end. */
4572 while (ISDIGIT (*q))
4574 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4578 /* Put that part into the command. */
4579 obstack_grow (&obstack, v, q - v);
4581 /* Default to "0" */
4582 obstack_grow (&obstack, &zeroc, 1);
4588 if (input_from_pipe)
4589 do_spec_1 ("-", 0, NULL_PTR);
4593 error ("Spec failure: Unrecognised spec option '%c'", c);
4599 /* Backslash: treat next character as ordinary. */
4604 /* Ordinary character: put it into the current argument. */
4605 obstack_1grow (&obstack, c);
4609 return 0; /* End of string */
4612 /* Return 0 if we call do_spec_1 and that returns -1. */
4616 register const char *p;
4618 const char *filter, *body = NULL, *endbody = NULL;
4622 int include_blanks = 1;
4623 int elide_switch = 0;
4627 /* A '^' after the open-brace means to not give blanks before args. */
4634 /* A `|' after the open-brace means,
4635 if the test fails, output a single minus sign rather than nothing.
4636 This is used in %{|!pipe:...}. */
4643 /* A `<' after the open-brace means that the switch should be
4644 removed from the command-line. */
4650 negate = suffix = 0;
4653 /* A `!' after the open-brace negates the condition:
4654 succeed if the specified switch is not present. */
4658 /* A `.' after the open-brace means test against the current suffix. */
4667 if (elide_switch && (negate || pipe_p || suffix))
4669 /* It doesn't make sense to mix elision with other flags. We
4670 could fatal() here, but the standard seems to be to abort. */
4675 while (*p != ':' && *p != '}' && *p != '|') p++;
4677 if (*p == '|' && pipe_p)
4684 register int count = 1;
4685 register const char *q = p;
4687 while (*q++ != ':') continue;
4703 body = p, endbody = p+1;
4708 int found = (input_suffix != 0
4709 && (long) strlen (input_suffix) == (long)(p - filter)
4710 && strncmp (input_suffix, filter, p - filter) == 0);
4716 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4719 else if (p[-1] == '*' && p[0] == '}')
4721 /* Substitute all matching switches as separate args. */
4724 for (i = 0; i < n_switches; i++)
4725 if (!strncmp (switches[i].part1, filter, p - filter)
4726 && check_live_switch (i, p - filter))
4727 give_switch (i, 0, include_blanks);
4731 /* Test for presence of the specified switch. */
4735 /* If name specified ends in *, as in {x*:...},
4736 check for %* and handle that case. */
4737 if (p[-1] == '*' && !negate)
4740 const char *r = body;
4742 /* First see whether we have %*. */
4746 if (*r == '%' && r[1] == '*')
4750 /* If we do, handle that case. */
4753 /* Substitute all matching switches as separate args.
4754 But do this by substituting for %*
4755 in the text that follows the colon. */
4757 unsigned hard_match_len = p - filter - 1;
4758 char *string = save_string (body, endbody - body - 1);
4760 for (i = 0; i < n_switches; i++)
4761 if (!strncmp (switches[i].part1, filter, hard_match_len)
4762 && check_live_switch (i, -1))
4764 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4765 /* Pass any arguments this switch has. */
4766 give_switch (i, 1, 1);
4769 /* We didn't match. Try again. */
4776 /* If name specified ends in *, as in {x*:...},
4777 check for presence of any switch name starting with x. */
4780 for (i = 0; i < n_switches; i++)
4782 unsigned hard_match_len = p - filter - 1;
4784 if (!strncmp (switches[i].part1, filter, hard_match_len)
4785 && check_live_switch (i, hard_match_len))
4792 /* Otherwise, check for presence of exact name specified. */
4795 for (i = 0; i < n_switches; i++)
4797 if (!strncmp (switches[i].part1, filter, p - filter)
4798 && switches[i].part1[p - filter] == 0
4799 && check_live_switch (i, -1))
4807 /* If it is as desired (present for %{s...}, absent for %{!s...})
4808 then substitute either the switch or the specified
4809 conditional text. */
4810 if (present != negate)
4814 switches[i].live_cond = SWITCH_IGNORE;
4815 switches[i].validated = 1;
4819 give_switch (i, 0, include_blanks);
4823 if (do_spec_1 (save_string (body, endbody - body - 1),
4830 /* Here if a %{|...} conditional fails: output a minus sign,
4831 which means "standard output" or "standard input". */
4832 do_spec_1 ("-", 0, NULL_PTR);
4837 /* We didn't match; try again. */
4844 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4845 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4846 spec, or -1 if either exact match or %* is used.
4848 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4849 whose value does not begin with "no-" is obsoleted by the same value
4850 with the "no-", similarly for a switch with the "no-" prefix. */
4853 check_live_switch (switchnum, prefix_length)
4857 const char *name = switches[switchnum].part1;
4860 /* In the common case of {<at-most-one-letter>*}, a negating
4861 switch would always match, so ignore that case. We will just
4862 send the conflicting switches to the compiler phase. */
4863 if (prefix_length >= 0 && prefix_length <= 1)
4866 /* If we already processed this switch and determined if it was
4867 live or not, return our past determination. */
4868 if (switches[switchnum].live_cond != 0)
4869 return switches[switchnum].live_cond > 0;
4871 /* Now search for duplicate in a manner that depends on the name. */
4875 for (i = switchnum + 1; i < n_switches; i++)
4876 if (switches[i].part1[0] == 'O')
4878 switches[switchnum].validated = 1;
4879 switches[switchnum].live_cond = SWITCH_FALSE;
4884 case 'W': case 'f': case 'm':
4885 if (! strncmp (name + 1, "no-", 3))
4887 /* We have Xno-YYY, search for XYYY. */
4888 for (i = switchnum + 1; i < n_switches; i++)
4889 if (switches[i].part1[0] == name[0]
4890 && ! strcmp (&switches[i].part1[1], &name[4]))
4892 switches[switchnum].validated = 1;
4893 switches[switchnum].live_cond = SWITCH_FALSE;
4899 /* We have XYYY, search for Xno-YYY. */
4900 for (i = switchnum + 1; i < n_switches; i++)
4901 if (switches[i].part1[0] == name[0]
4902 && switches[i].part1[1] == 'n'
4903 && switches[i].part1[2] == 'o'
4904 && switches[i].part1[3] == '-'
4905 && !strcmp (&switches[i].part1[4], &name[1]))
4907 switches[switchnum].validated = 1;
4908 switches[switchnum].live_cond = SWITCH_FALSE;
4915 /* Otherwise the switch is live. */
4916 switches[switchnum].live_cond = SWITCH_LIVE;
4920 /* Pass a switch to the current accumulating command
4921 in the same form that we received it.
4922 SWITCHNUM identifies the switch; it is an index into
4923 the vector of switches gcc received, which is `switches'.
4924 This cannot fail since it never finishes a command line.
4926 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4928 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4932 give_switch (switchnum, omit_first_word, include_blanks)
4934 int omit_first_word;
4937 if (switches[switchnum].live_cond == SWITCH_IGNORE)
4940 if (!omit_first_word)
4942 do_spec_1 ("-", 0, NULL_PTR);
4943 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4946 if (switches[switchnum].args != 0)
4949 for (p = switches[switchnum].args; *p; p++)
4952 do_spec_1 (" ", 0, NULL_PTR);
4953 do_spec_1 (*p, 1, NULL_PTR);
4957 do_spec_1 (" ", 0, NULL_PTR);
4958 switches[switchnum].validated = 1;
4961 /* Search for a file named NAME trying various prefixes including the
4962 user's -B prefix and some standard ones.
4963 Return the absolute file name found. If nothing is found, return NAME. */
4971 /* Try multilib_dir if it is defined. */
4972 if (multilib_dir != NULL)
4976 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4977 strcpy (try, multilib_dir);
4978 strcat (try, dir_separator_str);
4981 newname = find_a_file (&startfile_prefixes, try, R_OK);
4983 /* If we don't find it in the multi library dir, then fall
4984 through and look for it in the normal places. */
4985 if (newname != NULL)
4989 newname = find_a_file (&startfile_prefixes, name, R_OK);
4990 return newname ? newname : name;
4993 /* Determine whether a directory exists. If LINKER, return 0 for
4994 certain fixed names not needed by the linker. If not LINKER, it is
4995 only important to return 0 if the host machine has a small ARG_MAX
4999 is_directory (path1, path2, linker)
5004 int len1 = strlen (path1);
5005 int len2 = strlen (path2);
5006 char *path = (char *) alloca (3 + len1 + len2);
5010 #ifndef SMALL_ARG_MAX
5015 /* Construct the path from the two parts. Ensure the string ends with "/.".
5016 The resulting path will be a directory even if the given path is a
5018 memcpy (path, path1, len1);
5019 memcpy (path + len1, path2, len2);
5020 cp = path + len1 + len2;
5021 if (!IS_DIR_SEPARATOR (cp[-1]))
5022 *cp++ = DIR_SEPARATOR;
5026 /* Exclude directories that the linker is known to search. */
5029 && strcmp (path, concat (dir_separator_str, "lib",
5030 dir_separator_str, ".", NULL_PTR)) == 0)
5032 && strcmp (path, concat (dir_separator_str, "usr",
5033 dir_separator_str, "lib",
5034 dir_separator_str, ".", NULL_PTR)) == 0)))
5037 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5040 /* Set up the various global variables to indicate that we're processing
5041 the input file named FILENAME. */
5044 set_input (filename)
5045 const char *filename;
5047 register const char *p;
5049 input_filename = filename;
5050 input_filename_length = strlen (input_filename);
5052 input_basename = input_filename;
5053 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5054 /* Skip drive name so 'x:foo' is handled properly. */
5055 if (input_basename[1] == ':')
5056 input_basename += 2;
5058 for (p = input_basename; *p; p++)
5059 if (IS_DIR_SEPARATOR (*p))
5060 input_basename = p + 1;
5062 /* Find a suffix starting with the last period,
5063 and set basename_length to exclude that suffix. */
5064 basename_length = strlen (input_basename);
5065 suffixed_basename_length = basename_length;
5066 p = input_basename + basename_length;
5067 while (p != input_basename && *p != '.') --p;
5068 if (*p == '.' && p != input_basename)
5070 basename_length = p - input_basename;
5071 input_suffix = p + 1;
5077 /* On fatal signals, delete all the temporary files. */
5080 fatal_error (signum)
5083 signal (signum, SIG_DFL);
5084 delete_failure_queue ();
5085 delete_temp_files ();
5086 /* Get the same signal again, this time not handled,
5087 so its normal effect occurs. */
5088 kill (getpid (), signum);
5091 extern int main PARAMS ((int, char **));
5100 int linker_was_run = 0;
5101 char *explicit_link_files;
5104 struct user_specs *uptr;
5106 p = argv[0] + strlen (argv[0]);
5107 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5111 #ifdef HAVE_LC_MESSAGES
5112 setlocale (LC_MESSAGES, "");
5114 (void) bindtextdomain (PACKAGE, localedir);
5115 (void) textdomain (PACKAGE);
5117 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5118 signal (SIGINT, fatal_error);
5120 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5121 signal (SIGHUP, fatal_error);
5123 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5124 signal (SIGTERM, fatal_error);
5126 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5127 signal (SIGPIPE, fatal_error);
5131 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5133 obstack_init (&obstack);
5135 /* Build multilib_select, et. al from the separate lines that make up each
5136 multilib selection. */
5138 const char *const *q = multilib_raw;
5141 obstack_init (&multilib_obstack);
5142 while ((p = *q++) != (char *) 0)
5143 obstack_grow (&multilib_obstack, p, strlen (p));
5145 obstack_1grow (&multilib_obstack, 0);
5146 multilib_select = obstack_finish (&multilib_obstack);
5148 q = multilib_matches_raw;
5149 while ((p = *q++) != (char *) 0)
5150 obstack_grow (&multilib_obstack, p, strlen (p));
5152 obstack_1grow (&multilib_obstack, 0);
5153 multilib_matches = obstack_finish (&multilib_obstack);
5155 q = multilib_exclusions_raw;
5156 while ((p = *q++) != (char *) 0)
5157 obstack_grow (&multilib_obstack, p, strlen (p));
5159 obstack_1grow (&multilib_obstack, 0);
5160 multilib_exclusions = obstack_finish (&multilib_obstack);
5164 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
5168 obstack_1grow (&multilib_obstack, ' ');
5169 obstack_grow (&multilib_obstack,
5170 multilib_defaults_raw[i],
5171 strlen (multilib_defaults_raw[i]));
5175 obstack_1grow (&multilib_obstack, 0);
5176 multilib_defaults = obstack_finish (&multilib_obstack);
5179 /* Set up to remember the pathname of gcc and any options
5180 needed for collect. We use argv[0] instead of programname because
5181 we need the complete pathname. */
5182 obstack_init (&collect_obstack);
5183 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
5184 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
5185 putenv (obstack_finish (&collect_obstack));
5187 #ifdef INIT_ENVIRONMENT
5188 /* Set up any other necessary machine specific environment variables. */
5189 putenv (INIT_ENVIRONMENT);
5192 /* Choose directory for temp files. */
5194 #ifndef MKTEMP_EACH_FILE
5195 temp_filename = choose_temp_base ();
5196 temp_filename_length = strlen (temp_filename);
5199 /* Make a table of what switches there are (switches, n_switches).
5200 Make a table of specified input files (infiles, n_infiles).
5201 Decode switches that are handled locally. */
5203 process_command (argc, argv);
5208 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5210 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5211 sizeof ("COLLECT_GCC_OPTIONS=")-1);
5214 for (i = 0; (int)i < n_switches; i++)
5219 obstack_grow (&collect_obstack, " ", 1);
5222 obstack_grow (&collect_obstack, "'-", 2);
5223 q = switches[i].part1;
5224 while ((p = index (q,'\'')))
5226 obstack_grow (&collect_obstack, q, p-q);
5227 obstack_grow (&collect_obstack, "'\\''", 4);
5230 obstack_grow (&collect_obstack, q, strlen (q));
5231 obstack_grow (&collect_obstack, "'", 1);
5233 for (args = switches[i].args; args && *args; args++)
5235 obstack_grow (&collect_obstack, " '", 2);
5237 while ((p = index (q,'\'')))
5239 obstack_grow (&collect_obstack, q, p-q);
5240 obstack_grow (&collect_obstack, "'\\''", 4);
5243 obstack_grow (&collect_obstack, q, strlen (q));
5244 obstack_grow (&collect_obstack, "'", 1);
5247 obstack_grow (&collect_obstack, "\0", 1);
5248 putenv (obstack_finish (&collect_obstack));
5251 /* Initialize the vector of specs to just the default.
5252 This means one element containing 0s, as a terminator. */
5254 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5255 bcopy ((char *) default_compilers, (char *) compilers,
5256 sizeof default_compilers);
5257 n_compilers = n_default_compilers;
5259 /* Read specs from a file if there is one. */
5261 machine_suffix = concat (spec_machine, dir_separator_str,
5262 spec_version, dir_separator_str, NULL_PTR);
5263 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5265 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5266 /* Read the specs file unless it is a default one. */
5267 if (specs_file != 0 && strcmp (specs_file, "specs"))
5268 read_specs (specs_file, TRUE);
5272 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5273 for any override of as, ld and libraries. */
5274 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5275 + strlen (just_machine_suffix)
5276 + sizeof ("specs"));
5278 strcpy (specs_file, standard_exec_prefix);
5279 strcat (specs_file, just_machine_suffix);
5280 strcat (specs_file, "specs");
5281 if (access (specs_file, R_OK) == 0)
5282 read_specs (specs_file, TRUE);
5284 /* If not cross-compiling, look for startfiles in the standard places. */
5285 if (*cross_compile == '0')
5287 #ifdef MD_EXEC_PREFIX
5288 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5289 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5290 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5291 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5294 #ifdef MD_STARTFILE_PREFIX
5295 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5296 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5299 #ifdef MD_STARTFILE_PREFIX_1
5300 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5301 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5304 /* If standard_startfile_prefix is relative, base it on
5305 standard_exec_prefix. This lets us move the installed tree
5306 as a unit. If GCC_EXEC_PREFIX is defined, base
5307 standard_startfile_prefix on that as well. */
5308 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5309 || *standard_startfile_prefix == '$'
5310 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5311 /* Check for disk name on MS-DOS-based systems. */
5312 || (standard_startfile_prefix[1] == ':'
5313 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5316 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5317 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5320 if (gcc_exec_prefix)
5321 add_prefix (&startfile_prefixes,
5322 concat (gcc_exec_prefix, machine_suffix,
5323 standard_startfile_prefix, NULL_PTR),
5324 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5325 add_prefix (&startfile_prefixes,
5326 concat (standard_exec_prefix,
5328 standard_startfile_prefix, NULL_PTR),
5329 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5332 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5333 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5334 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5335 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5336 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5337 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5338 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5343 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5344 add_prefix (&startfile_prefixes,
5345 concat (gcc_exec_prefix, machine_suffix,
5346 standard_startfile_prefix, NULL_PTR),
5347 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5350 /* Process any user specified specs in the order given on the command
5352 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5354 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5355 read_specs (filename ? filename : uptr->filename, FALSE);
5358 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5359 if (gcc_exec_prefix)
5361 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5362 + strlen (spec_version)
5363 + strlen (spec_machine) + 3);
5364 strcpy (temp, gcc_exec_prefix);
5365 strcat (temp, spec_machine);
5366 strcat (temp, dir_separator_str);
5367 strcat (temp, spec_version);
5368 strcat (temp, dir_separator_str);
5369 gcc_exec_prefix = temp;
5372 /* Now we have the specs.
5373 Set the `valid' bits for switches that match anything in any spec. */
5375 validate_all_switches ();
5377 /* Now that we have the switches and the specs, set
5378 the subdirectory based on the options. */
5379 set_multilib_dir ();
5381 /* Warn about any switches that no pass was interested in. */
5383 for (i = 0; (int)i < n_switches; i++)
5384 if (! switches[i].validated)
5385 error ("unrecognized option `-%s'", switches[i].part1);
5387 /* Obey some of the options. */
5389 if (print_search_dirs)
5391 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5392 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5393 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5397 if (print_file_name)
5399 printf ("%s\n", find_file (print_file_name));
5403 if (print_prog_name)
5405 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5406 printf ("%s\n", (newname ? newname : print_prog_name));
5410 if (print_multi_lib)
5412 print_multilib_info ();
5416 if (print_multi_directory)
5418 if (multilib_dir == NULL)
5421 printf ("%s\n", multilib_dir);
5425 if (print_help_list)
5431 printf (_("\nFor bug reporting instructions, please see:\n"));
5432 printf ("%s.\n", GCCBUGURL);
5437 /* We do not exit here. Instead we have created a fake input file
5438 called 'help-dummy' which needs to be compiled, and we pass this
5439 on the the various sub-processes, along with the --help switch. */
5446 /* compiler_version is truncated at the first space when initialized
5447 from version string, so truncate version_string at the first space
5448 before comparing. */
5449 for (n = 0; version_string[n]; n++)
5450 if (version_string[n] == ' ')
5453 if (! strncmp (version_string, compiler_version, n)
5454 && compiler_version[n] == 0)
5455 notice ("gcc version %s\n", version_string);
5457 notice ("gcc driver version %s executing gcc version %s\n",
5458 version_string, compiler_version);
5464 if (n_infiles == added_libraries)
5465 fatal ("No input files");
5467 /* Make a place to record the compiler output file names
5468 that correspond to the input files. */
5471 i += lang_specific_extra_outfiles;
5472 outfiles = (const char **) xcalloc (i, sizeof (char *));
5474 /* Record which files were specified explicitly as link input. */
5476 explicit_link_files = xcalloc (1, n_infiles);
5478 for (i = 0; (int)i < n_infiles; i++)
5480 register struct compiler *cp = 0;
5481 int this_file_error = 0;
5483 /* Tell do_spec what to substitute for %i. */
5485 input_file_number = i;
5486 set_input (infiles[i].name);
5488 /* Use the same thing in %o, unless cp->spec says otherwise. */
5490 outfiles[i] = input_filename;
5492 /* Figure out which compiler from the file's suffix. */
5494 cp = lookup_compiler (infiles[i].name, input_filename_length,
5495 infiles[i].language);
5499 /* Ok, we found an applicable compiler. Run its spec. */
5501 if (cp->spec[0] == '#')
5502 error ("%s: %s compiler not installed on this system",
5503 input_filename, &cp->spec[1]);
5504 value = do_spec (cp->spec);
5506 this_file_error = 1;
5509 /* If this file's name does not contain a recognized suffix,
5510 record it as explicit linker input. */
5513 explicit_link_files[i] = 1;
5515 /* Clear the delete-on-failure queue, deleting the files in it
5516 if this compilation failed. */
5518 if (this_file_error)
5520 delete_failure_queue ();
5523 /* If this compilation succeeded, don't delete those files later. */
5524 clear_failure_queue ();
5527 /* Reset the output file name to the first input file name, for use
5528 with %b in LINK_SPEC on a target that prefers not to emit a.out
5531 set_input (infiles[0].name);
5533 if (error_count == 0)
5535 /* Make sure INPUT_FILE_NUMBER points to first available open
5537 input_file_number = n_infiles;
5538 if (lang_specific_pre_link ())
5542 /* Run ld to link all the compiler output files. */
5544 if (error_count == 0)
5546 int tmp = execution_count;
5548 /* We'll use ld if we can't find collect2. */
5549 if (! strcmp (linker_name_spec, "collect2"))
5551 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5553 linker_name_spec = "ld";
5555 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5557 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5558 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5560 value = do_spec (link_command_spec);
5563 linker_was_run = (tmp != execution_count);
5566 /* Warn if a -B option was specified but the prefix was never used. */
5567 unused_prefix_warnings (&exec_prefixes);
5568 unused_prefix_warnings (&startfile_prefixes);
5570 /* If options said don't run linker,
5571 complain about input files to be given to the linker. */
5573 if (! linker_was_run && error_count == 0)
5574 for (i = 0; (int)i < n_infiles; i++)
5575 if (explicit_link_files[i])
5576 error ("%s: linker input file unused since linking not done",
5579 /* Delete some or all of the temporary files we made. */
5582 delete_failure_queue ();
5583 delete_temp_files ();
5585 if (print_help_list)
5587 printf (("\nFor bug reporting instructions, please see:\n"));
5588 printf ("%s\n", GCCBUGURL);
5591 return (signal_count != 0 ? 2
5592 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5596 /* Find the proper compilation spec for the file name NAME,
5597 whose length is LENGTH. LANGUAGE is the specified language,
5598 or 0 if this file is to be passed to the linker. */
5600 static struct compiler *
5601 lookup_compiler (name, length, language)
5604 const char *language;
5606 struct compiler *cp;
5608 /* If this was specified by the user to be a linker input, indicate that. */
5609 if (language != 0 && language[0] == '*')
5612 /* Otherwise, look for the language, if one is spec'd. */
5615 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5616 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5619 error ("language %s not recognized", language);
5623 /* Look for a suffix. */
5624 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5626 if (/* The suffix `-' matches only the file name `-'. */
5627 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5628 || (strlen (cp->suffix) < length
5629 /* See if the suffix matches the end of NAME. */
5630 && !strcmp (cp->suffix,
5631 name + length - strlen (cp->suffix))
5636 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5637 /* look again, but case-insensitively this time. */
5639 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5641 if (/* The suffix `-' matches only the file name `-'. */
5642 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5643 || (strlen (cp->suffix) < length
5644 /* See if the suffix matches the end of NAME. */
5645 && ((!strcmp (cp->suffix,
5646 name + length - strlen (cp->suffix))
5647 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5648 && !strcasecmp (cp->suffix,
5649 name + length - strlen (cp->suffix)))
5655 if (cp >= compilers)
5657 if (cp->spec[0] != '@')
5658 /* A non-alias entry: return it. */
5661 /* An alias entry maps a suffix to a language.
5662 Search for the language; pass 0 for NAME and LENGTH
5663 to avoid infinite recursion if language not found. */
5664 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5670 save_string (s, len)
5674 register char *result = xmalloc (len + 1);
5676 bcopy (s, result, len);
5682 pfatal_with_name (name)
5685 perror_with_name (name);
5686 delete_temp_files ();
5691 perror_with_name (name)
5694 error ("%s: %s", name, xstrerror (errno));
5698 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5699 const char *errmsg_fmt;
5700 const char *errmsg_arg;
5704 int save_errno = errno;
5706 /* Space for trailing '\0' is in %s. */
5707 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5708 sprintf (msg, errmsg_fmt, errmsg_arg);
5714 pfatal_with_name (errmsg_fmt);
5717 /* Output an error message and exit */
5722 fatal ("Internal gcc abort.");
5725 /* Output an error message and exit */
5728 fatal VPARAMS ((const char *msgid, ...))
5730 #ifndef ANSI_PROTOTYPES
5735 VA_START (ap, msgid);
5737 #ifndef ANSI_PROTOTYPES
5738 msgid = va_arg (ap, const char *);
5741 fprintf (stderr, "%s: ", programname);
5742 vfprintf (stderr, _(msgid), ap);
5744 fprintf (stderr, "\n");
5745 delete_temp_files ();
5750 error VPARAMS ((const char *msgid, ...))
5752 #ifndef ANSI_PROTOTYPES
5757 VA_START (ap, msgid);
5759 #ifndef ANSI_PROTOTYPES
5760 msgid = va_arg (ap, const char *);
5763 fprintf (stderr, "%s: ", programname);
5764 vfprintf (stderr, _(msgid), ap);
5767 fprintf (stderr, "\n");
5771 notice VPARAMS ((const char *msgid, ...))
5773 #ifndef ANSI_PROTOTYPES
5778 VA_START (ap, msgid);
5780 #ifndef ANSI_PROTOTYPES
5781 msgid = va_arg (ap, const char *);
5784 vfprintf (stderr, _(msgid), ap);
5790 validate_all_switches ()
5792 struct compiler *comp;
5793 register const char *p;
5795 struct spec_list *spec;
5797 for (comp = compilers; comp->spec; comp++)
5801 if (c == '%' && *p == '{')
5802 /* We have a switch spec. */
5803 validate_switches (p + 1);
5806 /* Look through the linked list of specs read from the specs file. */
5807 for (spec = specs; spec ; spec = spec->next)
5809 p = *(spec->ptr_spec);
5811 if (c == '%' && *p == '{')
5812 /* We have a switch spec. */
5813 validate_switches (p + 1);
5816 p = link_command_spec;
5818 if (c == '%' && *p == '{')
5819 /* We have a switch spec. */
5820 validate_switches (p + 1);
5823 /* Look at the switch-name that comes after START
5824 and mark as valid all supplied switches that match it. */
5827 validate_switches (start)
5830 register const char *p = start;
5845 while (*p != ':' && *p != '}') p++;
5849 else if (p[-1] == '*')
5851 /* Mark all matching switches as valid. */
5853 for (i = 0; i < n_switches; i++)
5854 if (!strncmp (switches[i].part1, filter, p - filter))
5855 switches[i].validated = 1;
5859 /* Mark an exact matching switch as valid. */
5860 for (i = 0; i < n_switches; i++)
5862 if (!strncmp (switches[i].part1, filter, p - filter)
5863 && switches[i].part1[p - filter] == 0)
5864 switches[i].validated = 1;
5869 /* Check whether a particular argument was used. The first time we
5870 canonicalize the switches to keep only the ones we care about. */
5880 const char *replace;
5885 static struct mswitchstr *mswitches;
5886 static int n_mswitches;
5891 struct mswitchstr *matches;
5895 /* Break multilib_matches into the component strings of string and replacement
5897 for (q = multilib_matches; *q != '\0'; q++)
5901 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5903 q = multilib_matches;
5913 matches[i].len = q - matches[i].str;
5915 matches[i].replace = ++q;
5916 while (*q != ';' && *q != '\0')
5922 matches[i].rep_len = q - matches[i].replace;
5928 /* Now build a list of the replacement string for switches that we care
5929 about. Make sure we allocate at least one entry. This prevents
5930 xmalloc from calling fatal, and prevents us from re-executing this
5933 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5934 * (n_switches ? n_switches : 1));
5935 for (i = 0; i < n_switches; i++)
5937 int xlen = strlen (switches[i].part1);
5938 for (j = 0; j < cnt; j++)
5939 if (xlen == matches[j].len
5940 && ! strncmp (switches[i].part1, matches[j].str, xlen))
5942 mswitches[n_mswitches].str = matches[j].replace;
5943 mswitches[n_mswitches].len = matches[j].rep_len;
5944 mswitches[n_mswitches].replace = (char *)0;
5945 mswitches[n_mswitches].rep_len = 0;
5952 for (i = 0; i < n_mswitches; i++)
5953 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5960 default_arg (p, len)
5964 const char *start, *end;
5966 for (start = multilib_defaults; *start != '\0'; start = end+1)
5968 while (*start == ' ' || *start == '\t')
5974 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5977 if ((end - start) == len && strncmp (p, start, len) == 0)
5987 /* Work out the subdirectory to use based on the options. The format of
5988 multilib_select is a list of elements. Each element is a subdirectory
5989 name followed by a list of options followed by a semicolon. The format
5990 of multilib_exclusions is the same, but without the preceding
5991 directory. First gcc will check the exclusions, if none of the options
5992 beginning with an exclamation point are present, and all of the other
5993 options are present, then we will ignore this completely. Passing
5994 that, gcc will consider each multilib_select in turn using the same
5995 rules for matching the options. If a match is found, that subdirectory
6002 unsigned int this_path_len;
6003 const char *this_path, *this_arg;
6007 p = multilib_exclusions;
6010 /* Ignore newlines. */
6017 /* Check the arguments. */
6031 while (*p != ' ' && *p != ';')
6038 if (*this_arg != '!')
6046 ok = used_arg (this_arg, p - this_arg);
6060 p = multilib_select;
6063 /* Ignore newlines. */
6070 /* Get the initial path. */
6078 this_path_len = p - this_path;
6080 /* Check the arguments. */
6095 while (*p != ' ' && *p != ';')
6102 if (*this_arg != '!')
6110 /* If this is a default argument, we can just ignore it.
6111 This is true even if this_arg begins with '!'. Beginning
6112 with '!' does not mean that this argument is necessarily
6113 inappropriate for this library: it merely means that
6114 there is a more specific library which uses this
6115 argument. If this argument is a default, we need not
6116 consider that more specific library. */
6117 if (! default_arg (this_arg, p - this_arg))
6119 ok = used_arg (this_arg, p - this_arg);
6130 if (this_path_len != 1
6131 || this_path[0] != '.')
6133 char * new_multilib_dir = xmalloc (this_path_len + 1);
6134 strncpy (new_multilib_dir, this_path, this_path_len);
6135 new_multilib_dir[this_path_len] = '\0';
6136 multilib_dir = new_multilib_dir;
6145 /* Print out the multiple library subdirectory selection
6146 information. This prints out a series of lines. Each line looks
6147 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6148 required. Only the desired options are printed out, the negative
6149 matches. The options are print without a leading dash. There are
6150 no spaces to make it easy to use the information in the shell.
6151 Each subdirectory is printed only once. This assumes the ordering
6152 generated by the genmultilib script. Also, we leave out ones that match
6156 print_multilib_info ()
6158 const char *p = multilib_select;
6159 const char *last_path = 0, *this_path;
6161 unsigned int last_path_len = 0;
6166 /* Ignore newlines. */
6173 /* Get the initial path. */
6182 /* Check for matches with the multilib_exclusions. We don't bother
6183 with the '!' in either list. If any of the exclusion rules match
6184 all of its options with the select rule, we skip it. */
6186 const char *e = multilib_exclusions;
6187 const char *this_arg;
6192 /* Ignore newlines. */
6199 /* Check the arguments. */
6216 while (*e != ' ' && *e != ';')
6227 int len = e - this_arg;
6234 while (*q != ' ' && *q != ';')
6241 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6242 default_arg (this_arg, e - this_arg))
6272 /* If this is a duplicate, skip it. */
6273 skip = (last_path != 0 && (unsigned int)(p - this_path) == last_path_len
6274 && ! strncmp (last_path, this_path, last_path_len));
6276 last_path = this_path;
6277 last_path_len = p - this_path;
6280 /* If this directory requires any default arguments, we can skip
6281 it. We will already have printed a directory identical to
6282 this one which does not require that default argument. */
6300 while (*q != ' ' && *q != ';')
6308 && default_arg (arg, q - arg))
6323 for (p1 = last_path; p1 < p; p1++)
6342 use_arg = *p != '!';
6347 while (*p != ' ' && *p != ';')
6362 /* If there are extra options, print them now. */
6363 if (multilib_extra && *multilib_extra)
6365 int print_at = TRUE;
6368 for (q = multilib_extra; *q != '\0'; q++)