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 *const **));
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 *const *));
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}cpp0";
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:cpp0 -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:-o %{|!pipe:%g.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)
857 const char *const **argvp;
861 const char *const *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++)
2495 const char *const *j;
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 /* For some bizarre reason, the second argument of execvp() is
2527 char *const *, not const char *const *. */
2528 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2529 programname, temp_filename,
2530 &errmsg_fmt, &errmsg_arg,
2531 ((i == 0 ? PEXECUTE_FIRST : 0)
2532 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2533 | (string == commands[i].prog
2534 ? PEXECUTE_SEARCH : 0)
2535 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2537 if (commands[i].pid == -1)
2538 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2540 if (string != commands[i].prog)
2541 free ((PTR) string);
2546 /* Wait for all the subprocesses to finish.
2547 We don't care what order they finish in;
2548 we know that N_COMMANDS waits will get them all.
2549 Ignore subprocesses that we don't know about,
2550 since they can be spawned by the process that exec'ed us. */
2554 #ifdef HAVE_GETRUSAGE
2556 double ut = 0.0, st = 0.0;
2559 for (i = 0; i < n_commands; )
2565 pid = pwait (commands[i].pid, &status, 0);
2569 #ifdef HAVE_GETRUSAGE
2572 /* getrusage returns the total resource usage of all children
2573 up to now. Copy the previous values into prus, get the
2574 current statistics, then take the difference. */
2577 getrusage (RUSAGE_CHILDREN, &rus);
2578 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2579 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2580 ut = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2582 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2583 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2584 st = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2588 for (j = 0; j < n_commands; j++)
2589 if (commands[j].pid == pid)
2592 if (WIFSIGNALED (status))
2595 /* SIGPIPE is a special case. It happens in -pipe mode
2596 when the compiler dies before the preprocessor is
2597 done, or the assembler dies before the compiler is
2598 done. There's generally been an error already, and
2599 this is just fallout. So don't generate another error
2600 unless we would otherwise have succeeded. */
2601 if (WTERMSIG (status) == SIGPIPE
2602 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2607 Internal error: %s (program %s)\n\
2608 Please submit a full bug report.\n\
2609 See %s for instructions.",
2610 strsignal (WTERMSIG (status)), commands[j].prog,
2615 else if (WIFEXITED (status)
2616 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2618 if (WEXITSTATUS (status) > greatest_status)
2619 greatest_status = WEXITSTATUS (status);
2622 #ifdef HAVE_GETRUSAGE
2623 if (report_times && ut + st != 0)
2624 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2633 /* Find all the switches given to us
2634 and make a vector describing them.
2635 The elements of the vector are strings, one per switch given.
2636 If a switch uses following arguments, then the `part1' field
2637 is the switch itself and the `args' field
2638 is a null-terminated vector containing the following arguments.
2639 The `live_cond' field is:
2641 1 if the switch is true in a conditional spec,
2642 -1 if false (overridden by a later switch)
2643 -2 if this switch should be ignored (used in %{<S})
2644 The `validated' field is nonzero if any spec has looked at this switch;
2645 if it remains zero at the end of the run, it must be meaningless. */
2648 #define SWITCH_FALSE -1
2649 #define SWITCH_IGNORE -2
2650 #define SWITCH_LIVE 1
2660 static struct switchstr *switches;
2662 static int n_switches;
2667 const char *language;
2670 /* Also a vector of input files specified. */
2672 static struct infile *infiles;
2674 static int n_infiles;
2676 /* This counts the number of libraries added by lang_specific_driver, so that
2677 we can tell if there were any user supplied any files or libraries. */
2679 static int added_libraries;
2681 /* And a vector of corresponding output files is made up later. */
2683 static const char **outfiles;
2685 /* Used to track if none of the -B paths are used. */
2688 /* Used to track if standard path isn't used and -b or -V is specified. */
2689 static int warn_std;
2691 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2692 static int *warn_std_ptr = 0;
2695 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2697 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2698 is true if we should look for an executable suffix as well. */
2701 convert_filename (name, do_exe)
2711 len = strlen (name);
2713 #ifdef HAVE_OBJECT_SUFFIX
2714 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2716 && name[len - 2] == '.'
2717 && name[len - 1] == 'o')
2719 obstack_grow (&obstack, name, len - 2);
2720 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2721 name = obstack_finish (&obstack);
2725 #ifdef HAVE_EXECUTABLE_SUFFIX
2726 /* If there is no filetype, make it the executable suffix (which includes
2727 the "."). But don't get confused if we have just "-o". */
2728 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2731 for (i = len - 1; i >= 0; i--)
2732 if (IS_DIR_SEPARATOR (name[i]))
2735 for (i++; i < len; i++)
2739 obstack_grow (&obstack, name, len);
2740 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2741 name = obstack_finish (&obstack);
2748 /* Display the command line switches accepted by gcc. */
2752 printf (_("Usage: %s [options] file...\n"), programname);
2753 fputs (_("Options:\n"), stdout);
2755 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2756 fputs (_(" --help Display this information\n"), stdout);
2758 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2759 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2760 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2761 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2762 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2763 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2764 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2765 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2766 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2768 -print-multi-lib Display the mapping between command line options and\n\
2769 multiple library search directories\n"), stdout);
2770 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2771 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2772 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2773 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2774 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2775 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2776 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2777 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2778 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2779 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2780 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2781 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2782 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2783 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2784 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2785 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2786 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2788 -x <language> Specify the language of the following input files\n\
2789 Permissable languages include: c c++ assembler none\n\
2790 'none' means revert to the default behaviour of\n\
2791 guessing the language based on the file's extension\n\
2795 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2796 the various sub-processes invoked by %s. In order to pass other options\n\
2797 on to these processes the -W<letter> options must be used.\n\
2800 /* The rest of the options are displayed by invocations of the various
2805 add_preprocessor_option (option, len)
2806 const char * option;
2809 n_preprocessor_options++;
2811 if (! preprocessor_options)
2812 preprocessor_options
2813 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2815 preprocessor_options
2816 = (char **) xrealloc (preprocessor_options,
2817 n_preprocessor_options * sizeof (char *));
2819 preprocessor_options [n_preprocessor_options - 1] =
2820 save_string (option, len);
2824 add_assembler_option (option, len)
2825 const char * option;
2828 n_assembler_options++;
2830 if (! assembler_options)
2832 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2835 = (char **) xrealloc (assembler_options,
2836 n_assembler_options * sizeof (char *));
2838 assembler_options [n_assembler_options - 1] = save_string (option, len);
2842 add_linker_option (option, len)
2843 const char * option;
2848 if (! linker_options)
2850 = (char **) xmalloc (n_linker_options * sizeof (char *));
2853 = (char **) xrealloc (linker_options,
2854 n_linker_options * sizeof (char *));
2856 linker_options [n_linker_options - 1] = save_string (option, len);
2859 /* Create the vector `switches' and its contents.
2860 Store its length in `n_switches'. */
2863 process_command (argc, argv)
2865 const char *const *argv;
2870 const char *spec_lang = 0;
2871 int last_language_n_infiles;
2874 int lang_n_infiles = 0;
2876 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2880 added_libraries = 0;
2882 /* Figure compiler version from version string. */
2884 compiler_version = temp1 = xstrdup (version_string);
2886 for (; *temp1; ++temp1)
2895 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2896 see if we can create it from the pathname specified in argv[0]. */
2899 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2900 if (!gcc_exec_prefix)
2902 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2903 standard_exec_prefix);
2904 if (gcc_exec_prefix)
2905 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2909 if (gcc_exec_prefix)
2911 int len = strlen (gcc_exec_prefix);
2912 if (len > (int) sizeof ("/lib/gcc-lib/")-1
2913 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2915 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2916 if (IS_DIR_SEPARATOR (*temp)
2917 && strncmp (temp+1, "lib", 3) == 0
2918 && IS_DIR_SEPARATOR (temp[4])
2919 && strncmp (temp+5, "gcc-lib", 7) == 0)
2920 len -= sizeof ("/lib/gcc-lib/") - 1;
2923 set_std_prefix (gcc_exec_prefix, len);
2924 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2925 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2926 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2927 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2930 /* COMPILER_PATH and LIBRARY_PATH have values
2931 that are lists of directory names with colons. */
2933 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2936 const char *startp, *endp;
2937 char *nstore = (char *) alloca (strlen (temp) + 3);
2939 startp = endp = temp;
2942 if (*endp == PATH_SEPARATOR || *endp == 0)
2944 strncpy (nstore, startp, endp-startp);
2946 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2947 else if (!IS_DIR_SEPARATOR (endp[-1]))
2949 nstore[endp-startp] = DIR_SEPARATOR;
2950 nstore[endp-startp+1] = 0;
2953 nstore[endp-startp] = 0;
2954 add_prefix (&exec_prefixes, nstore, 0,
2955 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2956 add_prefix (&include_prefixes,
2957 concat (nstore, "include", NULL_PTR),
2958 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2961 endp = startp = endp + 1;
2968 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2969 if (temp && *cross_compile == '0')
2971 const char *startp, *endp;
2972 char *nstore = (char *) alloca (strlen (temp) + 3);
2974 startp = endp = temp;
2977 if (*endp == PATH_SEPARATOR || *endp == 0)
2979 strncpy (nstore, startp, endp-startp);
2981 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2982 else if (!IS_DIR_SEPARATOR (endp[-1]))
2984 nstore[endp-startp] = DIR_SEPARATOR;
2985 nstore[endp-startp+1] = 0;
2988 nstore[endp-startp] = 0;
2989 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2990 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2993 endp = startp = endp + 1;
3000 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3001 GET_ENV_PATH_LIST (temp, "LPATH");
3002 if (temp && *cross_compile == '0')
3004 const char *startp, *endp;
3005 char *nstore = (char *) alloca (strlen (temp) + 3);
3007 startp = endp = temp;
3010 if (*endp == PATH_SEPARATOR || *endp == 0)
3012 strncpy (nstore, startp, endp-startp);
3014 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3015 else if (!IS_DIR_SEPARATOR (endp[-1]))
3017 nstore[endp-startp] = DIR_SEPARATOR;
3018 nstore[endp-startp+1] = 0;
3021 nstore[endp-startp] = 0;
3022 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3023 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3026 endp = startp = endp + 1;
3033 /* Convert new-style -- options to old-style. */
3034 translate_options (&argc, &argv);
3036 /* Do language-specific adjustment/addition of flags. */
3037 lang_specific_driver (&argc, &argv, &added_libraries);
3039 /* Scan argv twice. Here, the first time, just count how many switches
3040 there will be in their vector, and how many input files in theirs.
3041 Here we also parse the switches that cc itself uses (e.g. -v). */
3043 for (i = 1; i < argc; i++)
3045 if (! strcmp (argv[i], "-dumpspecs"))
3047 struct spec_list *sl;
3049 for (sl = specs; sl; sl = sl->next)
3050 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3051 if (link_command_spec)
3052 printf ("*link_command:\n%s\n\n", link_command_spec);
3055 else if (! strcmp (argv[i], "-dumpversion"))
3057 printf ("%s\n", spec_version);
3060 else if (! strcmp (argv[i], "-dumpmachine"))
3062 printf ("%s\n", spec_machine);
3065 else if (strcmp (argv[i], "-fhelp") == 0)
3067 /* translate_options () has turned --help into -fhelp. */
3068 print_help_list = 1;
3070 /* We will be passing a dummy file on to the sub-processes. */
3074 add_preprocessor_option ("--help", 6);
3075 add_assembler_option ("--help", 6);
3076 add_linker_option ("--help", 6);
3078 else if (! strcmp (argv[i], "-pass-exit-codes"))
3080 pass_exit_codes = 1;
3083 else if (! strcmp (argv[i], "-print-search-dirs"))
3084 print_search_dirs = 1;
3085 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3086 print_file_name = "libgcc.a";
3087 else if (! strncmp (argv[i], "-print-file-name=", 17))
3088 print_file_name = argv[i] + 17;
3089 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3090 print_prog_name = argv[i] + 17;
3091 else if (! strcmp (argv[i], "-print-multi-lib"))
3092 print_multi_lib = 1;
3093 else if (! strcmp (argv[i], "-print-multi-directory"))
3094 print_multi_directory = 1;
3095 else if (! strncmp (argv[i], "-Wa,", 4))
3098 /* Pass the rest of this option to the assembler. */
3100 /* Split the argument at commas. */
3102 for (j = 4; argv[i][j]; j++)
3103 if (argv[i][j] == ',')
3105 add_assembler_option (argv[i] + prev, j - prev);
3109 /* Record the part after the last comma. */
3110 add_assembler_option (argv[i] + prev, j - prev);
3112 else if (! strncmp (argv[i], "-Wp,", 4))
3115 /* Pass the rest of this option to the preprocessor. */
3117 /* Split the argument at commas. */
3119 for (j = 4; argv[i][j]; j++)
3120 if (argv[i][j] == ',')
3122 add_preprocessor_option (argv[i] + prev, j - prev);
3126 /* Record the part after the last comma. */
3127 add_preprocessor_option (argv[i] + prev, j - prev);
3129 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3130 /* The +e options to the C++ front-end. */
3132 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3135 /* Split the argument at commas. */
3136 for (j = 3; argv[i][j]; j++)
3137 n_infiles += (argv[i][j] == ',');
3139 else if (strcmp (argv[i], "-Xlinker") == 0)
3142 fatal ("argument to `-Xlinker' is missing");
3147 else if (strncmp (argv[i], "-l", 2) == 0)
3149 else if (strcmp (argv[i], "-save-temps") == 0)
3151 save_temps_flag = 1;
3154 else if (strcmp (argv[i], "-specs") == 0)
3156 struct user_specs *user = (struct user_specs *)
3157 xmalloc (sizeof (struct user_specs));
3159 fatal ("argument to `-specs' is missing");
3161 user->next = (struct user_specs *)0;
3162 user->filename = argv[i];
3163 if (user_specs_tail)
3164 user_specs_tail->next = user;
3166 user_specs_head = user;
3167 user_specs_tail = user;
3169 else if (strncmp (argv[i], "-specs=", 7) == 0)
3171 struct user_specs *user = (struct user_specs *)
3172 xmalloc (sizeof (struct user_specs));
3173 if (strlen (argv[i]) == 7)
3174 fatal ("argument to `-specs=' is missing");
3176 user->next = (struct user_specs *)0;
3177 user->filename = argv[i]+7;
3178 if (user_specs_tail)
3179 user_specs_tail->next = user;
3181 user_specs_head = user;
3182 user_specs_tail = user;
3184 else if (strcmp (argv[i], "-time") == 0)
3186 else if (argv[i][0] == '-' && argv[i][1] != 0)
3188 register const char *p = &argv[i][1];
3189 register int c = *p;
3195 if (p[1] == 0 && i + 1 == argc)
3196 fatal ("argument to `-b' is missing");
3198 spec_machine = argv[++i];
3200 spec_machine = p + 1;
3202 warn_std_ptr = &warn_std;
3208 if (p[1] == 0 && i + 1 == argc)
3209 fatal ("argument to `-B' is missing");
3215 /* As a kludge, if the arg is "[foo/]stageN/", just
3216 add "[foo/]include" to the include prefix. */
3217 int len = strlen (value);
3220 && (IS_DIR_SEPARATOR (value[len - 8]))))
3221 && strncmp (value + len - 7, "stage", 5) == 0
3222 && ISDIGIT (value[len - 2])
3223 && (IS_DIR_SEPARATOR (value[len - 1])))
3226 add_prefix (&include_prefixes, "include", NULL_PTR,
3227 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3230 char *string = xmalloc (len + 1);
3231 strncpy (string, value, len-7);
3232 strcpy (string+len-7, "include");
3233 add_prefix (&include_prefixes, string, NULL_PTR,
3234 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3238 add_prefix (&exec_prefixes, value, NULL_PTR,
3239 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3240 add_prefix (&startfile_prefixes, value, NULL_PTR,
3241 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3242 add_prefix (&include_prefixes, concat (value, "include",
3245 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3250 case 'v': /* Print our subcommands and print versions. */
3252 /* If they do anything other than exactly `-v', don't set
3253 verbose_flag; rather, continue on to give the error. */
3261 if (p[1] == 0 && i + 1 == argc)
3262 fatal ("argument to `-V' is missing");
3264 spec_version = argv[++i];
3266 spec_version = p + 1;
3267 compiler_version = spec_version;
3268 warn_std_ptr = &warn_std;
3270 /* Validate the version number. Use the same checks
3271 done when inserting it into a spec.
3273 The format of the version string is
3274 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3276 const char *v = compiler_version;
3278 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3279 while (! ISDIGIT (*v))
3282 if (v > compiler_version && v[-1] != '-')
3283 fatal ("invalid version number format");
3285 /* Set V after the first period. */
3286 while (ISDIGIT (*v))
3290 fatal ("invalid version number format");
3293 while (ISDIGIT (*v))
3296 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3297 fatal ("invalid version number format");
3313 #if defined(HAVE_EXECUTABLE_SUFFIX)
3318 /* Forward scan, just in case -S or -c is specified
3325 if (argv[j][0] == '-')
3327 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3333 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3334 j += skip - (argv[j][2] != 0);
3335 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3342 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3344 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3346 argv[i] = convert_filename (argv[i], ! have_c);
3354 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3355 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3356 else if (WORD_SWITCH_TAKES_ARG (p))
3357 i += WORD_SWITCH_TAKES_ARG (p);
3367 if (have_c && have_o && lang_n_infiles > 1)
3368 fatal ("cannot specify -o with -c or -S and multiple compilations");
3370 /* Set up the search paths before we go looking for config files. */
3372 /* These come before the md prefixes so that we will find gcc's subcommands
3373 (such as cpp) rather than those of the host system. */
3374 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3375 as well as trying the machine and the version. */
3377 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3378 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3379 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3380 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3381 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3382 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3385 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3386 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3387 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3388 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3390 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3391 dir_separator_str, NULL_PTR);
3393 /* If tooldir is relative, base it on exec_prefixes. A relative
3394 tooldir lets us move the installed tree as a unit.
3396 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3397 directories, so that we can search both the user specified directory
3398 and the standard place. */
3400 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3402 if (gcc_exec_prefix)
3404 char *gcc_exec_tooldir_prefix
3405 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3406 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3408 add_prefix (&exec_prefixes,
3409 concat (gcc_exec_tooldir_prefix, "bin",
3410 dir_separator_str, NULL_PTR),
3411 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3412 add_prefix (&startfile_prefixes,
3413 concat (gcc_exec_tooldir_prefix, "lib",
3414 dir_separator_str, NULL_PTR),
3415 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3418 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3419 dir_separator_str, spec_version,
3420 dir_separator_str, tooldir_prefix, NULL_PTR);
3423 add_prefix (&exec_prefixes,
3424 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3425 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3426 add_prefix (&startfile_prefixes,
3427 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3428 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3430 /* More prefixes are enabled in main, after we read the specs file
3431 and determine whether this is cross-compilation or not. */
3434 /* Then create the space for the vectors and scan again. */
3436 switches = ((struct switchstr *)
3437 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3438 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3441 last_language_n_infiles = -1;
3443 /* This, time, copy the text of each switch and store a pointer
3444 to the copy in the vector of switches.
3445 Store all the infiles in their vector. */
3447 for (i = 1; i < argc; i++)
3449 /* Just skip the switches that were handled by the preceding loop. */
3450 if (! strncmp (argv[i], "-Wa,", 4))
3452 else if (! strncmp (argv[i], "-Wp,", 4))
3454 else if (! strcmp (argv[i], "-pass-exit-codes"))
3456 else if (! strcmp (argv[i], "-print-search-dirs"))
3458 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3460 else if (! strncmp (argv[i], "-print-file-name=", 17))
3462 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3464 else if (! strcmp (argv[i], "-print-multi-lib"))
3466 else if (! strcmp (argv[i], "-print-multi-directory"))
3468 else if (strcmp (argv[i], "-fhelp") == 0)
3472 /* Create a dummy input file, so that we can pass --help on to
3473 the various sub-processes. */
3474 infiles[n_infiles].language = "c";
3475 infiles[n_infiles++].name = "help-dummy";
3477 /* Preserve the --help switch so that it can be caught by the
3479 switches[n_switches].part1 = "--help";
3480 switches[n_switches].args = 0;
3481 switches[n_switches].live_cond = SWITCH_OK;
3482 switches[n_switches].validated = 0;
3487 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3489 /* Compensate for the +e options to the C++ front-end;
3490 they're there simply for cfront call-compatibility. We do
3491 some magic in default_compilers to pass them down properly.
3492 Note we deliberately start at the `+' here, to avoid passing
3493 -e0 or -e1 down into the linker. */
3494 switches[n_switches].part1 = &argv[i][0];
3495 switches[n_switches].args = 0;
3496 switches[n_switches].live_cond = SWITCH_OK;
3497 switches[n_switches].validated = 0;
3500 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3503 /* Split the argument at commas. */
3505 for (j = 4; argv[i][j]; j++)
3506 if (argv[i][j] == ',')
3508 infiles[n_infiles].language = "*";
3509 infiles[n_infiles++].name
3510 = save_string (argv[i] + prev, j - prev);
3513 /* Record the part after the last comma. */
3514 infiles[n_infiles].language = "*";
3515 infiles[n_infiles++].name = argv[i] + prev;
3517 else if (strcmp (argv[i], "-Xlinker") == 0)
3519 infiles[n_infiles].language = "*";
3520 infiles[n_infiles++].name = argv[++i];
3522 else if (strncmp (argv[i], "-l", 2) == 0)
3524 infiles[n_infiles].language = "*";
3525 infiles[n_infiles++].name = argv[i];
3527 else if (strcmp (argv[i], "-specs") == 0)
3529 else if (strncmp (argv[i], "-specs=", 7) == 0)
3531 else if (strcmp (argv[i], "-time") == 0)
3533 else if ((save_temps_flag || report_times)
3534 && strcmp (argv[i], "-pipe") == 0)
3536 /* -save-temps overrides -pipe, so that temp files are produced */
3537 if (save_temps_flag)
3538 error ("Warning: -pipe ignored since -save-temps specified");
3539 /* -time overrides -pipe because we can't get correct stats when
3540 multiple children are running at once. */
3541 else if (report_times)
3542 error ("Warning: -pipe ignored since -time specified");
3544 else if (argv[i][0] == '-' && argv[i][1] != 0)
3546 const char *p = &argv[i][1];
3551 if (p[1] == 0 && i + 1 == argc)
3552 fatal ("argument to `-x' is missing");
3554 spec_lang = argv[++i];
3557 if (! strcmp (spec_lang, "none"))
3558 /* Suppress the warning if -xnone comes after the last input
3559 file, because alternate command interfaces like g++ might
3560 find it useful to place -xnone after each input file. */
3563 last_language_n_infiles = n_infiles;
3566 switches[n_switches].part1 = p;
3567 /* Deal with option arguments in separate argv elements. */
3568 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3569 || WORD_SWITCH_TAKES_ARG (p))
3572 int n_args = WORD_SWITCH_TAKES_ARG (p);
3576 /* Count only the option arguments in separate argv elements. */
3577 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3579 if (i + n_args >= argc)
3580 fatal ("argument to `-%s' is missing", p);
3581 switches[n_switches].args
3582 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3584 switches[n_switches].args[j++] = argv[++i];
3585 /* Null-terminate the vector. */
3586 switches[n_switches].args[j] = 0;
3588 else if (index (switches_need_spaces, c))
3590 /* On some systems, ld cannot handle some options without
3591 a space. So split the option from its argument. */
3592 char *part1 = (char *) xmalloc (2);
3597 switches[n_switches].part1 = part1;
3598 switches[n_switches].args
3599 = (const char **) xmalloc (2 * sizeof (const char *));
3600 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3601 strcpy (tmp, &p[1]);
3602 switches[n_switches].args[1] = 0;
3605 switches[n_switches].args = 0;
3607 switches[n_switches].live_cond = SWITCH_OK;
3608 switches[n_switches].validated = 0;
3609 /* This is always valid, since gcc.c itself understands it. */
3610 if (!strcmp (p, "save-temps"))
3611 switches[n_switches].validated = 1;
3614 char ch = switches[n_switches].part1[0];
3615 if (ch == 'V' || ch == 'b' || ch == 'B')
3616 switches[n_switches].validated = 1;
3622 #ifdef HAVE_OBJECT_SUFFIX
3623 argv[i] = convert_filename (argv[i], 0);
3626 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3628 perror_with_name (argv[i]);
3633 infiles[n_infiles].language = spec_lang;
3634 infiles[n_infiles++].name = argv[i];
3639 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3640 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3642 switches[n_switches].part1 = 0;
3643 infiles[n_infiles].name = 0;
3646 /* Process a spec string, accumulating and running commands. */
3648 /* These variables describe the input file name.
3649 input_file_number is the index on outfiles of this file,
3650 so that the output file name can be stored for later use by %o.
3651 input_basename is the start of the part of the input file
3652 sans all directory names, and basename_length is the number
3653 of characters starting there excluding the suffix .c or whatever. */
3655 const char *input_filename;
3656 static int input_file_number;
3657 size_t input_filename_length;
3658 static int basename_length;
3659 static int suffixed_basename_length;
3660 static const char *input_basename;
3661 static const char *input_suffix;
3663 /* These are variables used within do_spec and do_spec_1. */
3665 /* Nonzero if an arg has been started and not yet terminated
3666 (with space, tab or newline). */
3667 static int arg_going;
3669 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3670 is a temporary file name. */
3671 static int delete_this_arg;
3673 /* Nonzero means %w has been seen; the next arg to be terminated
3674 is the output file name of this compilation. */
3675 static int this_is_output_file;
3677 /* Nonzero means %s has been seen; the next arg to be terminated
3678 is the name of a library file and we should try the standard
3679 search dirs for it. */
3680 static int this_is_library_file;
3682 /* Nonzero means that the input of this command is coming from a pipe. */
3683 static int input_from_pipe;
3685 /* Process the spec SPEC and run the commands specified therein.
3686 Returns 0 if the spec is successfully processed; -1 if failed. */
3696 delete_this_arg = 0;
3697 this_is_output_file = 0;
3698 this_is_library_file = 0;
3699 input_from_pipe = 0;
3701 value = do_spec_1 (spec, 0, NULL_PTR);
3703 /* Force out any unfinished command.
3704 If -pipe, this forces out the last command if it ended in `|'. */
3707 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3710 if (argbuf_index > 0)
3717 /* Process the sub-spec SPEC as a portion of a larger spec.
3718 This is like processing a whole spec except that we do
3719 not initialize at the beginning and we do not supply a
3720 newline by default at the end.
3721 INSWITCH nonzero means don't process %-sequences in SPEC;
3722 in this case, % is treated as an ordinary character.
3723 This is used while substituting switches.
3724 INSWITCH nonzero also causes SPC not to terminate an argument.
3726 Value is zero unless a line was finished
3727 and the command on that line reported an error. */
3730 do_spec_1 (spec, inswitch, soft_matched_part)
3733 const char *soft_matched_part;
3735 register const char *p = spec;
3742 /* If substituting a switch, treat all chars like letters.
3743 Otherwise, NL, SPC, TAB and % are special. */
3744 switch (inswitch ? 'a' : c)
3747 /* End of line: finish any pending argument,
3748 then run the pending command if one has been started. */
3751 obstack_1grow (&obstack, 0);
3752 string = obstack_finish (&obstack);
3753 if (this_is_library_file)
3754 string = find_file (string);
3755 store_arg (string, delete_this_arg, this_is_output_file);
3756 if (this_is_output_file)
3757 outfiles[input_file_number] = string;
3761 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3763 for (i = 0; i < n_switches; i++)
3764 if (!strcmp (switches[i].part1, "pipe"))
3767 /* A `|' before the newline means use a pipe here,
3768 but only if -pipe was specified.
3769 Otherwise, execute now and don't pass the `|' as an arg. */
3772 input_from_pipe = 1;
3773 switches[i].validated = 1;
3780 if (argbuf_index > 0)
3786 /* Reinitialize for a new command, and for a new argument. */
3789 delete_this_arg = 0;
3790 this_is_output_file = 0;
3791 this_is_library_file = 0;
3792 input_from_pipe = 0;
3796 /* End any pending argument. */
3799 obstack_1grow (&obstack, 0);
3800 string = obstack_finish (&obstack);
3801 if (this_is_library_file)
3802 string = find_file (string);
3803 store_arg (string, delete_this_arg, this_is_output_file);
3804 if (this_is_output_file)
3805 outfiles[input_file_number] = string;
3809 obstack_1grow (&obstack, c);
3815 /* Space or tab ends an argument if one is pending. */
3818 obstack_1grow (&obstack, 0);
3819 string = obstack_finish (&obstack);
3820 if (this_is_library_file)
3821 string = find_file (string);
3822 store_arg (string, delete_this_arg, this_is_output_file);
3823 if (this_is_output_file)
3824 outfiles[input_file_number] = string;
3826 /* Reinitialize for a new argument. */
3828 delete_this_arg = 0;
3829 this_is_output_file = 0;
3830 this_is_library_file = 0;
3837 fatal ("Invalid specification! Bug in cc.");
3840 obstack_grow (&obstack, input_basename, basename_length);
3845 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3850 delete_this_arg = 2;
3853 /* Dump out the directories specified with LIBRARY_PATH,
3854 followed by the absolute directories
3855 that we search for startfiles. */
3858 struct prefix_list *pl = startfile_prefixes.plist;
3859 size_t bufsize = 100;
3860 char *buffer = (char *) xmalloc (bufsize);
3863 for (; pl; pl = pl->next)
3865 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3866 /* Used on systems which record the specified -L dirs
3867 and use them to search for dynamic linking. */
3868 /* Relative directories always come from -B,
3869 and it is better not to use them for searching
3870 at run time. In particular, stage1 loses. */
3871 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3874 /* Try subdirectory if there is one. */
3875 if (multilib_dir != NULL)
3879 if (strlen (pl->prefix) + strlen (machine_suffix)
3881 bufsize = (strlen (pl->prefix)
3882 + strlen (machine_suffix)) * 2 + 1;
3883 buffer = (char *) xrealloc (buffer, bufsize);
3884 strcpy (buffer, pl->prefix);
3885 strcat (buffer, machine_suffix);
3886 if (is_directory (buffer, multilib_dir, 1))
3888 do_spec_1 ("-L", 0, NULL_PTR);
3889 #ifdef SPACE_AFTER_L_OPTION
3890 do_spec_1 (" ", 0, NULL_PTR);
3892 do_spec_1 (buffer, 1, NULL_PTR);
3893 do_spec_1 (multilib_dir, 1, NULL_PTR);
3894 /* Make this a separate argument. */
3895 do_spec_1 (" ", 0, NULL_PTR);
3898 if (!pl->require_machine_suffix)
3900 if (is_directory (pl->prefix, multilib_dir, 1))
3902 do_spec_1 ("-L", 0, NULL_PTR);
3903 #ifdef SPACE_AFTER_L_OPTION
3904 do_spec_1 (" ", 0, NULL_PTR);
3906 do_spec_1 (pl->prefix, 1, NULL_PTR);
3907 do_spec_1 (multilib_dir, 1, NULL_PTR);
3908 /* Make this a separate argument. */
3909 do_spec_1 (" ", 0, NULL_PTR);
3915 if (is_directory (pl->prefix, machine_suffix, 1))
3917 do_spec_1 ("-L", 0, NULL_PTR);
3918 #ifdef SPACE_AFTER_L_OPTION
3919 do_spec_1 (" ", 0, NULL_PTR);
3921 do_spec_1 (pl->prefix, 1, NULL_PTR);
3922 /* Remove slash from machine_suffix. */
3923 if (strlen (machine_suffix) >= bufsize)
3924 bufsize = strlen (machine_suffix) * 2 + 1;
3925 buffer = (char *) xrealloc (buffer, bufsize);
3926 strcpy (buffer, machine_suffix);
3927 idx = strlen (buffer);
3928 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3929 buffer[idx - 1] = 0;
3930 do_spec_1 (buffer, 1, NULL_PTR);
3931 /* Make this a separate argument. */
3932 do_spec_1 (" ", 0, NULL_PTR);
3935 if (!pl->require_machine_suffix)
3937 if (is_directory (pl->prefix, "", 1))
3939 do_spec_1 ("-L", 0, NULL_PTR);
3940 #ifdef SPACE_AFTER_L_OPTION
3941 do_spec_1 (" ", 0, NULL_PTR);
3943 /* Remove slash from pl->prefix. */
3944 if (strlen (pl->prefix) >= bufsize)
3945 bufsize = strlen (pl->prefix) * 2 + 1;
3946 buffer = (char *) xrealloc (buffer, bufsize);
3947 strcpy (buffer, pl->prefix);
3948 idx = strlen (buffer);
3949 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3950 buffer[idx - 1] = 0;
3951 do_spec_1 (buffer, 1, NULL_PTR);
3952 /* Make this a separate argument. */
3953 do_spec_1 (" ", 0, NULL_PTR);
3962 /* %efoo means report an error with `foo' as error message
3963 and don't execute any more commands for this file. */
3967 while (*p != 0 && *p != '\n') p++;
3968 buf = (char *) alloca (p - q + 1);
3969 strncpy (buf, q, p - q);
3979 if (save_temps_flag)
3981 obstack_grow (&obstack, input_basename, basename_length);
3982 delete_this_arg = 0;
3986 #ifdef MKTEMP_EACH_FILE
3987 /* ??? This has a problem: the total number of
3988 values mktemp can return is limited.
3989 That matters for the names of object files.
3990 In 2.4, do something about that. */
3991 struct temp_name *t;
3993 const char *suffix = p;
3994 char *saved_suffix = NULL;
3996 while (*p == '.' || ISALPHA ((unsigned char)*p))
3998 suffix_length = p - suffix;
3999 if (p[0] == '%' && p[1] == 'O')
4002 /* We don't support extra suffix characters after %O. */
4003 if (*p == '.' || ISALPHA ((unsigned char)*p))
4005 if (suffix_length == 0)
4006 suffix = OBJECT_SUFFIX;
4010 = (char *) xmalloc (suffix_length
4011 + strlen (OBJECT_SUFFIX));
4012 strncpy (saved_suffix, suffix, suffix_length);
4013 strcpy (saved_suffix + suffix_length,
4016 suffix_length += strlen (OBJECT_SUFFIX);
4019 /* See if we already have an association of %g/%u/%U and
4021 for (t = temp_names; t; t = t->next)
4022 if (t->length == suffix_length
4023 && strncmp (t->suffix, suffix, suffix_length) == 0
4024 && t->unique == (c != 'g'))
4027 /* Make a new association if needed. %u requires one. */
4028 if (t == 0 || c == 'u')
4032 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4033 t->next = temp_names;
4036 t->length = suffix_length;
4037 t->suffix = save_string (suffix, suffix_length);
4038 t->unique = (c != 'g');
4039 temp_filename = make_temp_file (t->suffix);
4040 temp_filename_length = strlen (temp_filename);
4041 t->filename = temp_filename;
4042 t->filename_length = temp_filename_length;
4046 free (saved_suffix);
4048 obstack_grow (&obstack, t->filename, t->filename_length);
4049 delete_this_arg = 1;
4051 obstack_grow (&obstack, temp_filename, temp_filename_length);
4052 if (c == 'u' || c == 'U')
4058 sprintf (buff, "%d", unique);
4059 obstack_grow (&obstack, buff, strlen (buff));
4062 delete_this_arg = 1;
4068 obstack_grow (&obstack, input_filename, input_filename_length);
4074 struct prefix_list *pl = include_prefixes.plist;
4076 if (gcc_exec_prefix)
4078 do_spec_1 ("-iprefix", 1, NULL_PTR);
4079 /* Make this a separate argument. */
4080 do_spec_1 (" ", 0, NULL_PTR);
4081 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4082 do_spec_1 (" ", 0, NULL_PTR);
4085 for (; pl; pl = pl->next)
4087 do_spec_1 ("-isystem", 1, NULL_PTR);
4088 /* Make this a separate argument. */
4089 do_spec_1 (" ", 0, NULL_PTR);
4090 do_spec_1 (pl->prefix, 1, NULL_PTR);
4091 do_spec_1 (" ", 0, NULL_PTR);
4098 int max = n_infiles;
4099 max += lang_specific_extra_outfiles;
4101 for (i = 0; i < max; i++)
4103 store_arg (outfiles[i], 0, 0);
4108 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4113 this_is_library_file = 1;
4117 this_is_output_file = 1;
4122 int cur_index = argbuf_index;
4123 /* Handle the {...} following the %W. */
4126 p = handle_braces (p + 1);
4129 /* If any args were output, mark the last one for deletion
4131 if (argbuf_index != cur_index)
4132 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4136 /* %x{OPTION} records OPTION for %X to output. */
4142 /* Skip past the option value and make a copy. */
4147 string = save_string (p1 + 1, p - p1 - 2);
4149 /* See if we already recorded this option. */
4150 for (i = 0; i < n_linker_options; i++)
4151 if (! strcmp (string, linker_options[i]))
4157 /* This option is new; add it. */
4158 add_linker_option (string, strlen (string));
4162 /* Dump out the options accumulated previously using %x. */
4164 for (i = 0; i < n_linker_options; i++)
4166 do_spec_1 (linker_options[i], 1, NULL_PTR);
4167 /* Make each accumulated option a separate argument. */
4168 do_spec_1 (" ", 0, NULL_PTR);
4172 /* Dump out the options accumulated previously using -Wa,. */
4174 for (i = 0; i < n_assembler_options; i++)
4176 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4177 /* Make each accumulated option a separate argument. */
4178 do_spec_1 (" ", 0, NULL_PTR);
4182 /* Dump out the options accumulated previously using -Wp,. */
4184 for (i = 0; i < n_preprocessor_options; i++)
4186 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4187 /* Make each accumulated option a separate argument. */
4188 do_spec_1 (" ", 0, NULL_PTR);
4192 /* Here are digits and numbers that just process
4193 a certain constant string as a spec. */
4196 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4202 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4208 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4214 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4220 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4226 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4232 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4238 value = do_spec_1 (link_spec, 0, NULL_PTR);
4244 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4250 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4257 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4261 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4265 if (! strncmp (y, "-D", 2))
4266 /* Copy the whole option. */
4267 while (*y && *y != ' ' && *y != '\t')
4269 else if (*y == ' ' || *y == '\t')
4270 /* Copy whitespace to the result. */
4272 /* Don't copy other options. */
4279 value = do_spec_1 (buf, 0, NULL_PTR);
4287 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4291 /* Copy all of CPP_PREDEFINES into BUF,
4292 but force them all into the reserved name space if they
4293 aren't already there. The reserved name space is all
4294 identifiers beginning with two underscores or with one
4295 underscore and a capital letter. We do the forcing by
4296 adding up to two underscores to the beginning and end
4297 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4302 if (! strncmp (y, "-D", 2))
4311 && ! ISUPPER ((unsigned char)*(y+1))))
4313 /* Stick __ at front of macro name. */
4317 /* Arrange to stick __ at the end as well. */
4321 /* Copy the macro name. */
4322 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4335 /* Copy the value given, if any. */
4336 while (*y && *y != ' ' && *y != '\t')
4339 else if (*y == ' ' || *y == '\t')
4340 /* Copy whitespace to the result. */
4342 /* Don't copy -A options */
4348 /* Copy all of CPP_PREDEFINES into BUF,
4349 but put __ after every -D. */
4353 if (! strncmp (y, "-D", 2))
4359 && ! ISUPPER ((unsigned char)*(y+1))))
4361 /* Stick -D__ at front of macro name. */
4368 /* Copy the macro name. */
4369 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4372 /* Copy the value given, if any. */
4373 while (*y && *y != ' ' && *y != '\t')
4378 /* Do not copy this macro - we have just done it before */
4379 while (*y && *y != ' ' && *y != '\t')
4383 else if (*y == ' ' || *y == '\t')
4384 /* Copy whitespace to the result. */
4386 /* Don't copy -A options. */
4392 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4396 if (! strncmp (y, "-A", 2))
4397 /* Copy the whole option. */
4398 while (*y && *y != ' ' && *y != '\t')
4400 else if (*y == ' ' || *y == '\t')
4401 /* Copy whitespace to the result. */
4403 /* Don't copy other options. */
4410 value = do_spec_1 (buf, 0, NULL_PTR);
4417 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4422 /* Here we define characters other than letters and digits. */
4425 p = handle_braces (p);
4431 obstack_1grow (&obstack, '%');
4435 if (soft_matched_part)
4437 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4438 do_spec_1 (" ", 0, NULL_PTR);
4441 /* Catch the case where a spec string contains something like
4442 '%{foo:%*}'. ie there is no * in the pattern on the left
4443 hand side of the :. */
4444 error ("Spec failure: '%%*' has not been initialised by pattern match");
4447 /* Process a string found as the value of a spec given by name.
4448 This feature allows individual machine descriptions
4449 to add and use their own specs.
4450 %[...] modifies -D options the way %P does;
4451 %(...) uses the spec unmodified. */
4453 error ("Warning: use of obsolete %%[ operator in specs");
4456 const char *name = p;
4457 struct spec_list *sl;
4460 /* The string after the S/P is the name of a spec that is to be
4462 while (*p && *p != ')' && *p != ']')
4465 /* See if it's in the list. */
4466 for (len = p - name, sl = specs; sl; sl = sl->next)
4467 if (sl->name_len == len && !strncmp (sl->name, name, len))
4469 name = *(sl->ptr_spec);
4471 notice ("Processing spec %c%s%c, which is '%s'\n",
4472 c, sl->name, (c == '(') ? ')' : ']', name);
4481 value = do_spec_1 (name, 0, NULL_PTR);
4487 char *x = (char *) alloca (strlen (name) * 2 + 1);
4489 const char *y = name;
4492 /* Copy all of NAME into BUF, but put __ after
4493 every -D and at the end of each arg. */
4496 if (! strncmp (y, "-D", 2))
4506 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4507 || *y == '}' || *y == 0))
4520 value = do_spec_1 (buf, 0, NULL_PTR);
4526 /* Discard the closing paren or bracket. */
4534 int c1 = *p++; /* Select first or second version number. */
4535 const char *v = compiler_version;
4537 static const char zeroc = '0';
4539 /* The format of the version string is
4540 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4542 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4543 while (! ISDIGIT (*v))
4545 if (v > compiler_version && v[-1] != '-')
4548 /* If desired, advance to second version number. */
4551 /* Set V after the first period. */
4552 while (ISDIGIT (*v))
4559 /* If desired, advance to third version number.
4560 But don't complain if it's not present */
4563 /* Set V after the second period. */
4564 while (ISDIGIT (*v))
4566 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4572 /* Set Q at the next period or at the end. */
4574 while (ISDIGIT (*q))
4576 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4580 /* Put that part into the command. */
4581 obstack_grow (&obstack, v, q - v);
4583 /* Default to "0" */
4584 obstack_grow (&obstack, &zeroc, 1);
4590 if (input_from_pipe)
4591 do_spec_1 ("-", 0, NULL_PTR);
4595 error ("Spec failure: Unrecognised spec option '%c'", c);
4601 /* Backslash: treat next character as ordinary. */
4606 /* Ordinary character: put it into the current argument. */
4607 obstack_1grow (&obstack, c);
4611 return 0; /* End of string */
4614 /* Return 0 if we call do_spec_1 and that returns -1. */
4618 register const char *p;
4620 const char *filter, *body = NULL, *endbody = NULL;
4624 int include_blanks = 1;
4625 int elide_switch = 0;
4629 /* A '^' after the open-brace means to not give blanks before args. */
4636 /* A `|' after the open-brace means,
4637 if the test fails, output a single minus sign rather than nothing.
4638 This is used in %{|!pipe:...}. */
4645 /* A `<' after the open-brace means that the switch should be
4646 removed from the command-line. */
4652 negate = suffix = 0;
4655 /* A `!' after the open-brace negates the condition:
4656 succeed if the specified switch is not present. */
4660 /* A `.' after the open-brace means test against the current suffix. */
4669 if (elide_switch && (negate || pipe_p || suffix))
4671 /* It doesn't make sense to mix elision with other flags. We
4672 could fatal() here, but the standard seems to be to abort. */
4677 while (*p != ':' && *p != '}' && *p != '|') p++;
4679 if (*p == '|' && pipe_p)
4686 register int count = 1;
4687 register const char *q = p;
4689 while (*q++ != ':') continue;
4705 body = p, endbody = p+1;
4710 int found = (input_suffix != 0
4711 && (long) strlen (input_suffix) == (long)(p - filter)
4712 && strncmp (input_suffix, filter, p - filter) == 0);
4718 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4721 else if (p[-1] == '*' && p[0] == '}')
4723 /* Substitute all matching switches as separate args. */
4726 for (i = 0; i < n_switches; i++)
4727 if (!strncmp (switches[i].part1, filter, p - filter)
4728 && check_live_switch (i, p - filter))
4729 give_switch (i, 0, include_blanks);
4733 /* Test for presence of the specified switch. */
4737 /* If name specified ends in *, as in {x*:...},
4738 check for %* and handle that case. */
4739 if (p[-1] == '*' && !negate)
4742 const char *r = body;
4744 /* First see whether we have %*. */
4748 if (*r == '%' && r[1] == '*')
4752 /* If we do, handle that case. */
4755 /* Substitute all matching switches as separate args.
4756 But do this by substituting for %*
4757 in the text that follows the colon. */
4759 unsigned hard_match_len = p - filter - 1;
4760 char *string = save_string (body, endbody - body - 1);
4762 for (i = 0; i < n_switches; i++)
4763 if (!strncmp (switches[i].part1, filter, hard_match_len)
4764 && check_live_switch (i, -1))
4766 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4767 /* Pass any arguments this switch has. */
4768 give_switch (i, 1, 1);
4771 /* We didn't match. Try again. */
4778 /* If name specified ends in *, as in {x*:...},
4779 check for presence of any switch name starting with x. */
4782 for (i = 0; i < n_switches; i++)
4784 unsigned hard_match_len = p - filter - 1;
4786 if (!strncmp (switches[i].part1, filter, hard_match_len)
4787 && check_live_switch (i, hard_match_len))
4794 /* Otherwise, check for presence of exact name specified. */
4797 for (i = 0; i < n_switches; i++)
4799 if (!strncmp (switches[i].part1, filter, p - filter)
4800 && switches[i].part1[p - filter] == 0
4801 && check_live_switch (i, -1))
4809 /* If it is as desired (present for %{s...}, absent for %{!s...})
4810 then substitute either the switch or the specified
4811 conditional text. */
4812 if (present != negate)
4816 switches[i].live_cond = SWITCH_IGNORE;
4817 switches[i].validated = 1;
4821 give_switch (i, 0, include_blanks);
4825 if (do_spec_1 (save_string (body, endbody - body - 1),
4832 /* Here if a %{|...} conditional fails: output a minus sign,
4833 which means "standard output" or "standard input". */
4834 do_spec_1 ("-", 0, NULL_PTR);
4839 /* We didn't match; try again. */
4846 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4847 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4848 spec, or -1 if either exact match or %* is used.
4850 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4851 whose value does not begin with "no-" is obsoleted by the same value
4852 with the "no-", similarly for a switch with the "no-" prefix. */
4855 check_live_switch (switchnum, prefix_length)
4859 const char *name = switches[switchnum].part1;
4862 /* In the common case of {<at-most-one-letter>*}, a negating
4863 switch would always match, so ignore that case. We will just
4864 send the conflicting switches to the compiler phase. */
4865 if (prefix_length >= 0 && prefix_length <= 1)
4868 /* If we already processed this switch and determined if it was
4869 live or not, return our past determination. */
4870 if (switches[switchnum].live_cond != 0)
4871 return switches[switchnum].live_cond > 0;
4873 /* Now search for duplicate in a manner that depends on the name. */
4877 for (i = switchnum + 1; i < n_switches; i++)
4878 if (switches[i].part1[0] == 'O')
4880 switches[switchnum].validated = 1;
4881 switches[switchnum].live_cond = SWITCH_FALSE;
4886 case 'W': case 'f': case 'm':
4887 if (! strncmp (name + 1, "no-", 3))
4889 /* We have Xno-YYY, search for XYYY. */
4890 for (i = switchnum + 1; i < n_switches; i++)
4891 if (switches[i].part1[0] == name[0]
4892 && ! strcmp (&switches[i].part1[1], &name[4]))
4894 switches[switchnum].validated = 1;
4895 switches[switchnum].live_cond = SWITCH_FALSE;
4901 /* We have XYYY, search for Xno-YYY. */
4902 for (i = switchnum + 1; i < n_switches; i++)
4903 if (switches[i].part1[0] == name[0]
4904 && switches[i].part1[1] == 'n'
4905 && switches[i].part1[2] == 'o'
4906 && switches[i].part1[3] == '-'
4907 && !strcmp (&switches[i].part1[4], &name[1]))
4909 switches[switchnum].validated = 1;
4910 switches[switchnum].live_cond = SWITCH_FALSE;
4917 /* Otherwise the switch is live. */
4918 switches[switchnum].live_cond = SWITCH_LIVE;
4922 /* Pass a switch to the current accumulating command
4923 in the same form that we received it.
4924 SWITCHNUM identifies the switch; it is an index into
4925 the vector of switches gcc received, which is `switches'.
4926 This cannot fail since it never finishes a command line.
4928 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4930 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4934 give_switch (switchnum, omit_first_word, include_blanks)
4936 int omit_first_word;
4939 if (switches[switchnum].live_cond == SWITCH_IGNORE)
4942 if (!omit_first_word)
4944 do_spec_1 ("-", 0, NULL_PTR);
4945 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4948 if (switches[switchnum].args != 0)
4951 for (p = switches[switchnum].args; *p; p++)
4954 do_spec_1 (" ", 0, NULL_PTR);
4955 do_spec_1 (*p, 1, NULL_PTR);
4959 do_spec_1 (" ", 0, NULL_PTR);
4960 switches[switchnum].validated = 1;
4963 /* Search for a file named NAME trying various prefixes including the
4964 user's -B prefix and some standard ones.
4965 Return the absolute file name found. If nothing is found, return NAME. */
4973 /* Try multilib_dir if it is defined. */
4974 if (multilib_dir != NULL)
4978 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4979 strcpy (try, multilib_dir);
4980 strcat (try, dir_separator_str);
4983 newname = find_a_file (&startfile_prefixes, try, R_OK);
4985 /* If we don't find it in the multi library dir, then fall
4986 through and look for it in the normal places. */
4987 if (newname != NULL)
4991 newname = find_a_file (&startfile_prefixes, name, R_OK);
4992 return newname ? newname : name;
4995 /* Determine whether a directory exists. If LINKER, return 0 for
4996 certain fixed names not needed by the linker. If not LINKER, it is
4997 only important to return 0 if the host machine has a small ARG_MAX
5001 is_directory (path1, path2, linker)
5006 int len1 = strlen (path1);
5007 int len2 = strlen (path2);
5008 char *path = (char *) alloca (3 + len1 + len2);
5012 #ifndef SMALL_ARG_MAX
5017 /* Construct the path from the two parts. Ensure the string ends with "/.".
5018 The resulting path will be a directory even if the given path is a
5020 memcpy (path, path1, len1);
5021 memcpy (path + len1, path2, len2);
5022 cp = path + len1 + len2;
5023 if (!IS_DIR_SEPARATOR (cp[-1]))
5024 *cp++ = DIR_SEPARATOR;
5028 /* Exclude directories that the linker is known to search. */
5031 && strcmp (path, concat (dir_separator_str, "lib",
5032 dir_separator_str, ".", NULL_PTR)) == 0)
5034 && strcmp (path, concat (dir_separator_str, "usr",
5035 dir_separator_str, "lib",
5036 dir_separator_str, ".", NULL_PTR)) == 0)))
5039 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5042 /* Set up the various global variables to indicate that we're processing
5043 the input file named FILENAME. */
5046 set_input (filename)
5047 const char *filename;
5049 register const char *p;
5051 input_filename = filename;
5052 input_filename_length = strlen (input_filename);
5054 input_basename = input_filename;
5055 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5056 /* Skip drive name so 'x:foo' is handled properly. */
5057 if (input_basename[1] == ':')
5058 input_basename += 2;
5060 for (p = input_basename; *p; p++)
5061 if (IS_DIR_SEPARATOR (*p))
5062 input_basename = p + 1;
5064 /* Find a suffix starting with the last period,
5065 and set basename_length to exclude that suffix. */
5066 basename_length = strlen (input_basename);
5067 suffixed_basename_length = basename_length;
5068 p = input_basename + basename_length;
5069 while (p != input_basename && *p != '.') --p;
5070 if (*p == '.' && p != input_basename)
5072 basename_length = p - input_basename;
5073 input_suffix = p + 1;
5079 /* On fatal signals, delete all the temporary files. */
5082 fatal_error (signum)
5085 signal (signum, SIG_DFL);
5086 delete_failure_queue ();
5087 delete_temp_files ();
5088 /* Get the same signal again, this time not handled,
5089 so its normal effect occurs. */
5090 kill (getpid (), signum);
5093 extern int main PARAMS ((int, const char *const *));
5098 const char *const *argv;
5102 int linker_was_run = 0;
5103 char *explicit_link_files;
5106 struct user_specs *uptr;
5108 p = argv[0] + strlen (argv[0]);
5109 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5113 #ifdef HAVE_LC_MESSAGES
5114 setlocale (LC_MESSAGES, "");
5116 (void) bindtextdomain (PACKAGE, localedir);
5117 (void) textdomain (PACKAGE);
5119 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5120 signal (SIGINT, fatal_error);
5122 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5123 signal (SIGHUP, fatal_error);
5125 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5126 signal (SIGTERM, fatal_error);
5128 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5129 signal (SIGPIPE, fatal_error);
5133 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5135 obstack_init (&obstack);
5137 /* Build multilib_select, et. al from the separate lines that make up each
5138 multilib selection. */
5140 const char *const *q = multilib_raw;
5143 obstack_init (&multilib_obstack);
5144 while ((p = *q++) != (char *) 0)
5145 obstack_grow (&multilib_obstack, p, strlen (p));
5147 obstack_1grow (&multilib_obstack, 0);
5148 multilib_select = obstack_finish (&multilib_obstack);
5150 q = multilib_matches_raw;
5151 while ((p = *q++) != (char *) 0)
5152 obstack_grow (&multilib_obstack, p, strlen (p));
5154 obstack_1grow (&multilib_obstack, 0);
5155 multilib_matches = obstack_finish (&multilib_obstack);
5157 q = multilib_exclusions_raw;
5158 while ((p = *q++) != (char *) 0)
5159 obstack_grow (&multilib_obstack, p, strlen (p));
5161 obstack_1grow (&multilib_obstack, 0);
5162 multilib_exclusions = obstack_finish (&multilib_obstack);
5166 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
5170 obstack_1grow (&multilib_obstack, ' ');
5171 obstack_grow (&multilib_obstack,
5172 multilib_defaults_raw[i],
5173 strlen (multilib_defaults_raw[i]));
5177 obstack_1grow (&multilib_obstack, 0);
5178 multilib_defaults = obstack_finish (&multilib_obstack);
5181 /* Set up to remember the pathname of gcc and any options
5182 needed for collect. We use argv[0] instead of programname because
5183 we need the complete pathname. */
5184 obstack_init (&collect_obstack);
5185 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
5186 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
5187 putenv (obstack_finish (&collect_obstack));
5189 #ifdef INIT_ENVIRONMENT
5190 /* Set up any other necessary machine specific environment variables. */
5191 putenv (INIT_ENVIRONMENT);
5194 /* Choose directory for temp files. */
5196 #ifndef MKTEMP_EACH_FILE
5197 temp_filename = choose_temp_base ();
5198 temp_filename_length = strlen (temp_filename);
5201 /* Make a table of what switches there are (switches, n_switches).
5202 Make a table of specified input files (infiles, n_infiles).
5203 Decode switches that are handled locally. */
5205 process_command (argc, argv);
5210 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5212 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5213 sizeof ("COLLECT_GCC_OPTIONS=")-1);
5216 for (i = 0; (int)i < n_switches; i++)
5218 const char *const *args;
5221 obstack_grow (&collect_obstack, " ", 1);
5224 obstack_grow (&collect_obstack, "'-", 2);
5225 q = switches[i].part1;
5226 while ((p = index (q,'\'')))
5228 obstack_grow (&collect_obstack, q, p-q);
5229 obstack_grow (&collect_obstack, "'\\''", 4);
5232 obstack_grow (&collect_obstack, q, strlen (q));
5233 obstack_grow (&collect_obstack, "'", 1);
5235 for (args = switches[i].args; args && *args; args++)
5237 obstack_grow (&collect_obstack, " '", 2);
5239 while ((p = index (q,'\'')))
5241 obstack_grow (&collect_obstack, q, p-q);
5242 obstack_grow (&collect_obstack, "'\\''", 4);
5245 obstack_grow (&collect_obstack, q, strlen (q));
5246 obstack_grow (&collect_obstack, "'", 1);
5249 obstack_grow (&collect_obstack, "\0", 1);
5250 putenv (obstack_finish (&collect_obstack));
5253 /* Initialize the vector of specs to just the default.
5254 This means one element containing 0s, as a terminator. */
5256 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5257 bcopy ((char *) default_compilers, (char *) compilers,
5258 sizeof default_compilers);
5259 n_compilers = n_default_compilers;
5261 /* Read specs from a file if there is one. */
5263 machine_suffix = concat (spec_machine, dir_separator_str,
5264 spec_version, dir_separator_str, NULL_PTR);
5265 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5267 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5268 /* Read the specs file unless it is a default one. */
5269 if (specs_file != 0 && strcmp (specs_file, "specs"))
5270 read_specs (specs_file, TRUE);
5274 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5275 for any override of as, ld and libraries. */
5276 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5277 + strlen (just_machine_suffix)
5278 + sizeof ("specs"));
5280 strcpy (specs_file, standard_exec_prefix);
5281 strcat (specs_file, just_machine_suffix);
5282 strcat (specs_file, "specs");
5283 if (access (specs_file, R_OK) == 0)
5284 read_specs (specs_file, TRUE);
5286 /* If not cross-compiling, look for startfiles in the standard places. */
5287 if (*cross_compile == '0')
5289 #ifdef MD_EXEC_PREFIX
5290 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5291 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5292 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5293 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5296 #ifdef MD_STARTFILE_PREFIX
5297 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5298 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5301 #ifdef MD_STARTFILE_PREFIX_1
5302 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5303 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5306 /* If standard_startfile_prefix is relative, base it on
5307 standard_exec_prefix. This lets us move the installed tree
5308 as a unit. If GCC_EXEC_PREFIX is defined, base
5309 standard_startfile_prefix on that as well. */
5310 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5311 || *standard_startfile_prefix == '$'
5312 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5313 /* Check for disk name on MS-DOS-based systems. */
5314 || (standard_startfile_prefix[1] == ':'
5315 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5318 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5319 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5322 if (gcc_exec_prefix)
5323 add_prefix (&startfile_prefixes,
5324 concat (gcc_exec_prefix, machine_suffix,
5325 standard_startfile_prefix, NULL_PTR),
5326 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5327 add_prefix (&startfile_prefixes,
5328 concat (standard_exec_prefix,
5330 standard_startfile_prefix, NULL_PTR),
5331 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5334 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5335 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5336 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5337 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5338 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5339 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5340 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5345 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5346 add_prefix (&startfile_prefixes,
5347 concat (gcc_exec_prefix, machine_suffix,
5348 standard_startfile_prefix, NULL_PTR),
5349 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5352 /* Process any user specified specs in the order given on the command
5354 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5356 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5357 read_specs (filename ? filename : uptr->filename, FALSE);
5360 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5361 if (gcc_exec_prefix)
5363 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5364 + strlen (spec_version)
5365 + strlen (spec_machine) + 3);
5366 strcpy (temp, gcc_exec_prefix);
5367 strcat (temp, spec_machine);
5368 strcat (temp, dir_separator_str);
5369 strcat (temp, spec_version);
5370 strcat (temp, dir_separator_str);
5371 gcc_exec_prefix = temp;
5374 /* Now we have the specs.
5375 Set the `valid' bits for switches that match anything in any spec. */
5377 validate_all_switches ();
5379 /* Now that we have the switches and the specs, set
5380 the subdirectory based on the options. */
5381 set_multilib_dir ();
5383 /* Warn about any switches that no pass was interested in. */
5385 for (i = 0; (int)i < n_switches; i++)
5386 if (! switches[i].validated)
5387 error ("unrecognized option `-%s'", switches[i].part1);
5389 /* Obey some of the options. */
5391 if (print_search_dirs)
5393 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5394 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5395 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5399 if (print_file_name)
5401 printf ("%s\n", find_file (print_file_name));
5405 if (print_prog_name)
5407 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5408 printf ("%s\n", (newname ? newname : print_prog_name));
5412 if (print_multi_lib)
5414 print_multilib_info ();
5418 if (print_multi_directory)
5420 if (multilib_dir == NULL)
5423 printf ("%s\n", multilib_dir);
5427 if (print_help_list)
5433 printf (_("\nFor bug reporting instructions, please see:\n"));
5434 printf ("%s.\n", GCCBUGURL);
5439 /* We do not exit here. Instead we have created a fake input file
5440 called 'help-dummy' which needs to be compiled, and we pass this
5441 on the the various sub-processes, along with the --help switch. */
5448 /* compiler_version is truncated at the first space when initialized
5449 from version string, so truncate version_string at the first space
5450 before comparing. */
5451 for (n = 0; version_string[n]; n++)
5452 if (version_string[n] == ' ')
5455 if (! strncmp (version_string, compiler_version, n)
5456 && compiler_version[n] == 0)
5457 notice ("gcc version %s\n", version_string);
5459 notice ("gcc driver version %s executing gcc version %s\n",
5460 version_string, compiler_version);
5466 if (n_infiles == added_libraries)
5467 fatal ("No input files");
5469 /* Make a place to record the compiler output file names
5470 that correspond to the input files. */
5473 i += lang_specific_extra_outfiles;
5474 outfiles = (const char **) xcalloc (i, sizeof (char *));
5476 /* Record which files were specified explicitly as link input. */
5478 explicit_link_files = xcalloc (1, n_infiles);
5480 for (i = 0; (int)i < n_infiles; i++)
5482 register struct compiler *cp = 0;
5483 int this_file_error = 0;
5485 /* Tell do_spec what to substitute for %i. */
5487 input_file_number = i;
5488 set_input (infiles[i].name);
5490 /* Use the same thing in %o, unless cp->spec says otherwise. */
5492 outfiles[i] = input_filename;
5494 /* Figure out which compiler from the file's suffix. */
5496 cp = lookup_compiler (infiles[i].name, input_filename_length,
5497 infiles[i].language);
5501 /* Ok, we found an applicable compiler. Run its spec. */
5503 if (cp->spec[0] == '#')
5504 error ("%s: %s compiler not installed on this system",
5505 input_filename, &cp->spec[1]);
5506 value = do_spec (cp->spec);
5508 this_file_error = 1;
5511 /* If this file's name does not contain a recognized suffix,
5512 record it as explicit linker input. */
5515 explicit_link_files[i] = 1;
5517 /* Clear the delete-on-failure queue, deleting the files in it
5518 if this compilation failed. */
5520 if (this_file_error)
5522 delete_failure_queue ();
5525 /* If this compilation succeeded, don't delete those files later. */
5526 clear_failure_queue ();
5529 /* Reset the output file name to the first input file name, for use
5530 with %b in LINK_SPEC on a target that prefers not to emit a.out
5533 set_input (infiles[0].name);
5535 if (error_count == 0)
5537 /* Make sure INPUT_FILE_NUMBER points to first available open
5539 input_file_number = n_infiles;
5540 if (lang_specific_pre_link ())
5544 /* Run ld to link all the compiler output files. */
5546 if (error_count == 0)
5548 int tmp = execution_count;
5550 /* We'll use ld if we can't find collect2. */
5551 if (! strcmp (linker_name_spec, "collect2"))
5553 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5555 linker_name_spec = "ld";
5557 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5559 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5560 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5562 value = do_spec (link_command_spec);
5565 linker_was_run = (tmp != execution_count);
5568 /* Warn if a -B option was specified but the prefix was never used. */
5569 unused_prefix_warnings (&exec_prefixes);
5570 unused_prefix_warnings (&startfile_prefixes);
5572 /* If options said don't run linker,
5573 complain about input files to be given to the linker. */
5575 if (! linker_was_run && error_count == 0)
5576 for (i = 0; (int)i < n_infiles; i++)
5577 if (explicit_link_files[i])
5578 error ("%s: linker input file unused since linking not done",
5581 /* Delete some or all of the temporary files we made. */
5584 delete_failure_queue ();
5585 delete_temp_files ();
5587 if (print_help_list)
5589 printf (("\nFor bug reporting instructions, please see:\n"));
5590 printf ("%s\n", GCCBUGURL);
5593 return (signal_count != 0 ? 2
5594 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5598 /* Find the proper compilation spec for the file name NAME,
5599 whose length is LENGTH. LANGUAGE is the specified language,
5600 or 0 if this file is to be passed to the linker. */
5602 static struct compiler *
5603 lookup_compiler (name, length, language)
5606 const char *language;
5608 struct compiler *cp;
5610 /* If this was specified by the user to be a linker input, indicate that. */
5611 if (language != 0 && language[0] == '*')
5614 /* Otherwise, look for the language, if one is spec'd. */
5617 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5618 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5621 error ("language %s not recognized", language);
5625 /* Look for a suffix. */
5626 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5628 if (/* The suffix `-' matches only the file name `-'. */
5629 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5630 || (strlen (cp->suffix) < length
5631 /* See if the suffix matches the end of NAME. */
5632 && !strcmp (cp->suffix,
5633 name + length - strlen (cp->suffix))
5638 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5639 /* look again, but case-insensitively this time. */
5641 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5643 if (/* The suffix `-' matches only the file name `-'. */
5644 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5645 || (strlen (cp->suffix) < length
5646 /* See if the suffix matches the end of NAME. */
5647 && ((!strcmp (cp->suffix,
5648 name + length - strlen (cp->suffix))
5649 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5650 && !strcasecmp (cp->suffix,
5651 name + length - strlen (cp->suffix)))
5657 if (cp >= compilers)
5659 if (cp->spec[0] != '@')
5660 /* A non-alias entry: return it. */
5663 /* An alias entry maps a suffix to a language.
5664 Search for the language; pass 0 for NAME and LENGTH
5665 to avoid infinite recursion if language not found. */
5666 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5672 save_string (s, len)
5676 register char *result = xmalloc (len + 1);
5678 bcopy (s, result, len);
5684 pfatal_with_name (name)
5687 perror_with_name (name);
5688 delete_temp_files ();
5693 perror_with_name (name)
5696 error ("%s: %s", name, xstrerror (errno));
5700 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5701 const char *errmsg_fmt;
5702 const char *errmsg_arg;
5706 int save_errno = errno;
5708 /* Space for trailing '\0' is in %s. */
5709 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5710 sprintf (msg, errmsg_fmt, errmsg_arg);
5716 pfatal_with_name (errmsg_fmt);
5719 /* Output an error message and exit */
5724 fatal ("Internal gcc abort.");
5727 /* Output an error message and exit */
5730 fatal VPARAMS ((const char *msgid, ...))
5732 #ifndef ANSI_PROTOTYPES
5737 VA_START (ap, msgid);
5739 #ifndef ANSI_PROTOTYPES
5740 msgid = va_arg (ap, const char *);
5743 fprintf (stderr, "%s: ", programname);
5744 vfprintf (stderr, _(msgid), ap);
5746 fprintf (stderr, "\n");
5747 delete_temp_files ();
5752 error VPARAMS ((const char *msgid, ...))
5754 #ifndef ANSI_PROTOTYPES
5759 VA_START (ap, msgid);
5761 #ifndef ANSI_PROTOTYPES
5762 msgid = va_arg (ap, const char *);
5765 fprintf (stderr, "%s: ", programname);
5766 vfprintf (stderr, _(msgid), ap);
5769 fprintf (stderr, "\n");
5773 notice VPARAMS ((const char *msgid, ...))
5775 #ifndef ANSI_PROTOTYPES
5780 VA_START (ap, msgid);
5782 #ifndef ANSI_PROTOTYPES
5783 msgid = va_arg (ap, const char *);
5786 vfprintf (stderr, _(msgid), ap);
5792 validate_all_switches ()
5794 struct compiler *comp;
5795 register const char *p;
5797 struct spec_list *spec;
5799 for (comp = compilers; comp->spec; comp++)
5803 if (c == '%' && *p == '{')
5804 /* We have a switch spec. */
5805 validate_switches (p + 1);
5808 /* Look through the linked list of specs read from the specs file. */
5809 for (spec = specs; spec ; spec = spec->next)
5811 p = *(spec->ptr_spec);
5813 if (c == '%' && *p == '{')
5814 /* We have a switch spec. */
5815 validate_switches (p + 1);
5818 p = link_command_spec;
5820 if (c == '%' && *p == '{')
5821 /* We have a switch spec. */
5822 validate_switches (p + 1);
5825 /* Look at the switch-name that comes after START
5826 and mark as valid all supplied switches that match it. */
5829 validate_switches (start)
5832 register const char *p = start;
5847 while (*p != ':' && *p != '}') p++;
5851 else if (p[-1] == '*')
5853 /* Mark all matching switches as valid. */
5855 for (i = 0; i < n_switches; i++)
5856 if (!strncmp (switches[i].part1, filter, p - filter))
5857 switches[i].validated = 1;
5861 /* Mark an exact matching switch as valid. */
5862 for (i = 0; i < n_switches; i++)
5864 if (!strncmp (switches[i].part1, filter, p - filter)
5865 && switches[i].part1[p - filter] == 0)
5866 switches[i].validated = 1;
5871 /* Check whether a particular argument was used. The first time we
5872 canonicalize the switches to keep only the ones we care about. */
5882 const char *replace;
5887 static struct mswitchstr *mswitches;
5888 static int n_mswitches;
5893 struct mswitchstr *matches;
5897 /* Break multilib_matches into the component strings of string and replacement
5899 for (q = multilib_matches; *q != '\0'; q++)
5903 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5905 q = multilib_matches;
5915 matches[i].len = q - matches[i].str;
5917 matches[i].replace = ++q;
5918 while (*q != ';' && *q != '\0')
5924 matches[i].rep_len = q - matches[i].replace;
5930 /* Now build a list of the replacement string for switches that we care
5931 about. Make sure we allocate at least one entry. This prevents
5932 xmalloc from calling fatal, and prevents us from re-executing this
5935 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5936 * (n_switches ? n_switches : 1));
5937 for (i = 0; i < n_switches; i++)
5939 int xlen = strlen (switches[i].part1);
5940 for (j = 0; j < cnt; j++)
5941 if (xlen == matches[j].len
5942 && ! strncmp (switches[i].part1, matches[j].str, xlen))
5944 mswitches[n_mswitches].str = matches[j].replace;
5945 mswitches[n_mswitches].len = matches[j].rep_len;
5946 mswitches[n_mswitches].replace = (char *)0;
5947 mswitches[n_mswitches].rep_len = 0;
5954 for (i = 0; i < n_mswitches; i++)
5955 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5962 default_arg (p, len)
5966 const char *start, *end;
5968 for (start = multilib_defaults; *start != '\0'; start = end+1)
5970 while (*start == ' ' || *start == '\t')
5976 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5979 if ((end - start) == len && strncmp (p, start, len) == 0)
5989 /* Work out the subdirectory to use based on the options. The format of
5990 multilib_select is a list of elements. Each element is a subdirectory
5991 name followed by a list of options followed by a semicolon. The format
5992 of multilib_exclusions is the same, but without the preceding
5993 directory. First gcc will check the exclusions, if none of the options
5994 beginning with an exclamation point are present, and all of the other
5995 options are present, then we will ignore this completely. Passing
5996 that, gcc will consider each multilib_select in turn using the same
5997 rules for matching the options. If a match is found, that subdirectory
6004 unsigned int this_path_len;
6005 const char *this_path, *this_arg;
6009 p = multilib_exclusions;
6012 /* Ignore newlines. */
6019 /* Check the arguments. */
6033 while (*p != ' ' && *p != ';')
6040 if (*this_arg != '!')
6048 ok = used_arg (this_arg, p - this_arg);
6062 p = multilib_select;
6065 /* Ignore newlines. */
6072 /* Get the initial path. */
6080 this_path_len = p - this_path;
6082 /* Check the arguments. */
6097 while (*p != ' ' && *p != ';')
6104 if (*this_arg != '!')
6112 /* If this is a default argument, we can just ignore it.
6113 This is true even if this_arg begins with '!'. Beginning
6114 with '!' does not mean that this argument is necessarily
6115 inappropriate for this library: it merely means that
6116 there is a more specific library which uses this
6117 argument. If this argument is a default, we need not
6118 consider that more specific library. */
6119 if (! default_arg (this_arg, p - this_arg))
6121 ok = used_arg (this_arg, p - this_arg);
6132 if (this_path_len != 1
6133 || this_path[0] != '.')
6135 char * new_multilib_dir = xmalloc (this_path_len + 1);
6136 strncpy (new_multilib_dir, this_path, this_path_len);
6137 new_multilib_dir[this_path_len] = '\0';
6138 multilib_dir = new_multilib_dir;
6147 /* Print out the multiple library subdirectory selection
6148 information. This prints out a series of lines. Each line looks
6149 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6150 required. Only the desired options are printed out, the negative
6151 matches. The options are print without a leading dash. There are
6152 no spaces to make it easy to use the information in the shell.
6153 Each subdirectory is printed only once. This assumes the ordering
6154 generated by the genmultilib script. Also, we leave out ones that match
6158 print_multilib_info ()
6160 const char *p = multilib_select;
6161 const char *last_path = 0, *this_path;
6163 unsigned int last_path_len = 0;
6168 /* Ignore newlines. */
6175 /* Get the initial path. */
6184 /* Check for matches with the multilib_exclusions. We don't bother
6185 with the '!' in either list. If any of the exclusion rules match
6186 all of its options with the select rule, we skip it. */
6188 const char *e = multilib_exclusions;
6189 const char *this_arg;
6194 /* Ignore newlines. */
6201 /* Check the arguments. */
6218 while (*e != ' ' && *e != ';')
6229 int len = e - this_arg;
6236 while (*q != ' ' && *q != ';')
6243 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6244 default_arg (this_arg, e - this_arg))
6274 /* If this is a duplicate, skip it. */
6275 skip = (last_path != 0 && (unsigned int)(p - this_path) == last_path_len
6276 && ! strncmp (last_path, this_path, last_path_len));
6278 last_path = this_path;
6279 last_path_len = p - this_path;
6282 /* If this directory requires any default arguments, we can skip
6283 it. We will already have printed a directory identical to
6284 this one which does not require that default argument. */
6302 while (*q != ' ' && *q != ';')
6310 && default_arg (arg, q - arg))
6325 for (p1 = last_path; p1 < p; p1++)
6344 use_arg = *p != '!';
6349 while (*p != ' ' && *p != ';')
6364 /* If there are extra options, print them now. */
6365 if (multilib_extra && *multilib_extra)
6367 int print_at = TRUE;
6370 for (q = multilib_extra; *q != '\0'; q++)