1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
85 #ifdef HAVE_SYS_RESOURCE_H
86 #include <sys/resource.h>
88 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
89 extern int getrusage
PARAMS ((int, struct rusage
*));
92 /* By default there is no special suffix for target executables. */
93 /* FIXME: when autoconf is fixed, remove the host check - dj */
94 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
95 #define HAVE_TARGET_EXECUTABLE_SUFFIX
98 /* By default there is no special suffix for host executables. */
99 #ifdef HOST_EXECUTABLE_SUFFIX
100 #define HAVE_HOST_EXECUTABLE_SUFFIX
102 #define HOST_EXECUTABLE_SUFFIX ""
105 /* By default, the suffix for target object files is ".o". */
106 #ifdef TARGET_OBJECT_SUFFIX
107 #define HAVE_TARGET_OBJECT_SUFFIX
109 #define TARGET_OBJECT_SUFFIX ".o"
113 /* FIXME: the location independence code for VMS is hairier than this,
114 and hasn't been written. */
120 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
122 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
123 #ifndef LIBRARY_PATH_ENV
124 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
128 #define kill(p,s) raise(s)
131 /* If a stage of compilation returns an exit status >= 1,
132 compilation of that file ceases. */
134 #define MIN_FATAL_STATUS 1
136 /* Flag set by cppspec.c to 1. */
139 /* Flag saying to pass the greatest exit code returned by a sub-process
140 to the calling program. */
141 static int pass_exit_codes
;
143 /* Definition of string containing the arguments given to configure. */
144 #include "configargs.h"
146 /* Flag saying to print the directories gcc will search through looking for
147 programs, libraries, etc. */
149 static int print_search_dirs
;
151 /* Flag saying to print the full filename of this file
152 as found through our usual search mechanism. */
154 static const char *print_file_name
= NULL
;
156 /* As print_file_name, but search for executable file. */
158 static const char *print_prog_name
= NULL
;
160 /* Flag saying to print the relative path we'd use to
161 find libgcc.a given the current compiler flags. */
163 static int print_multi_directory
;
165 /* Flag saying to print the list of subdirectories and
166 compiler flags used to select them in a standard form. */
168 static int print_multi_lib
;
170 /* Flag saying to print the command line options understood by gcc and its
173 static int print_help_list
;
175 /* Flag indicating whether we should print the command and arguments */
177 static int verbose_flag
;
179 /* Flag indicating whether we should ONLY print the command and
180 arguments (like verbose_flag) without executing the command.
181 Displayed arguments are quoted so that the generated command
182 line is suitable for execution. This is intended for use in
183 shell scripts to capture the driver-generated command line. */
184 static int verbose_only_flag
;
186 /* Flag indicating to print target specific command line options. */
188 static int target_help_flag
;
190 /* Flag indicating whether we should report subprocess execution times
191 (if this is supported by the system - see pexecute.c). */
193 static int report_times
;
195 /* Nonzero means write "temp" files in source directory
196 and use the source file's name in them, and don't delete them. */
198 static int save_temps_flag
;
200 /* The compiler version. */
202 static const char *compiler_version
;
204 /* The target version specified with -V */
206 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
208 /* The target machine specified with -b. */
210 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
212 /* Nonzero if cross-compiling.
213 When -b is used, the value comes from the `specs' file. */
216 static const char *cross_compile
= "1";
218 static const char *cross_compile
= "0";
221 #ifdef MODIFY_TARGET_NAME
223 /* Information on how to alter the target name based on a command-line
224 switch. The only case we support now is simply appending or deleting a
225 string to or from the end of the first part of the configuration name. */
227 static const struct modify_target
229 const char *const sw
;
230 const enum add_del
{ADD
, DELETE
} add_del
;
231 const char *const str
;
233 modify_target
[] = MODIFY_TARGET_NAME
;
236 /* The number of errors that have occurred; the link phase will not be
237 run if this is non-zero. */
238 static int error_count
= 0;
240 /* Greatest exit code of sub-processes that has been encountered up to
242 static int greatest_status
= 1;
244 /* This is the obstack which we use to allocate many strings. */
246 static struct obstack obstack
;
248 /* This is the obstack to build an environment variable to pass to
249 collect2 that describes all of the relevant switches of what to
250 pass the compiler in building the list of pointers to constructors
253 static struct obstack collect_obstack
;
255 /* These structs are used to collect resource usage information for
257 #ifdef HAVE_GETRUSAGE
258 static struct rusage rus
, prus
;
261 /* Forward declaration for prototypes. */
264 static void init_spec
PARAMS ((void));
266 static char **split_directories
PARAMS ((const char *, int *));
267 static void free_split_directories
PARAMS ((char **));
268 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
270 static void store_arg
PARAMS ((const char *, int, int));
271 static char *load_specs
PARAMS ((const char *));
272 static void read_specs
PARAMS ((const char *, int));
273 static void set_spec
PARAMS ((const char *, const char *));
274 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
275 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
276 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
277 static int access_check
PARAMS ((const char *, int));
278 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
279 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
280 const char *, int, int, int *));
281 static void translate_options
PARAMS ((int *, const char *const **));
282 static char *skip_whitespace
PARAMS ((char *));
283 static void delete_if_ordinary
PARAMS ((const char *));
284 static void delete_temp_files
PARAMS ((void));
285 static void delete_failure_queue
PARAMS ((void));
286 static void clear_failure_queue
PARAMS ((void));
287 static int check_live_switch
PARAMS ((int, int));
288 static const char *handle_braces
PARAMS ((const char *));
289 static char *save_string
PARAMS ((const char *, int));
290 static void set_collect_gcc_options
PARAMS ((void));
291 static int do_spec_1
PARAMS ((const char *, int, const char *));
292 static int do_spec_2
PARAMS ((const char *));
293 static const char *find_file
PARAMS ((const char *));
294 static int is_directory
PARAMS ((const char *, const char *, int));
295 static void validate_switches
PARAMS ((const char *));
296 static void validate_all_switches
PARAMS ((void));
297 static void give_switch
PARAMS ((int, int, int));
298 static int used_arg
PARAMS ((const char *, int));
299 static int default_arg
PARAMS ((const char *, int));
300 static void set_multilib_dir
PARAMS ((void));
301 static void print_multilib_info
PARAMS ((void));
302 static void perror_with_name
PARAMS ((const char *));
303 static void pfatal_pexecute
PARAMS ((const char *, const char *))
305 static void notice
PARAMS ((const char *, ...))
307 static void display_help
PARAMS ((void));
308 static void add_preprocessor_option
PARAMS ((const char *, int));
309 static void add_assembler_option
PARAMS ((const char *, int));
310 static void add_linker_option
PARAMS ((const char *, int));
311 static void process_command
PARAMS ((int, const char *const *));
312 static int execute
PARAMS ((void));
313 static void clear_args
PARAMS ((void));
314 static void fatal_error
PARAMS ((int));
315 #ifdef ENABLE_SHARED_LIBGCC
316 static void init_gcc_specs
PARAMS ((struct obstack
*,
317 const char *, const char *,
320 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
321 static const char *convert_filename
PARAMS ((const char *, int, int));
324 /* The Specs Language
326 Specs are strings containing lines, each of which (if not blank)
327 is made up of a program name, and arguments separated by spaces.
328 The program name must be exact and start from root, since no path
329 is searched and it is unreliable to depend on the current working directory.
330 Redirection of input or output is not supported; the subprograms must
331 accept filenames saying what files to read and write.
333 In addition, the specs can contain %-sequences to substitute variable text
334 or for conditional text. Here is a table of all defined %-sequences.
335 Note that spaces are not generated automatically around the results of
336 expanding these sequences; therefore, you can concatenate them together
337 or with constant text in a single argument.
339 %% substitute one % into the program name or argument.
340 %i substitute the name of the input file being processed.
341 %b substitute the basename of the input file being processed.
342 This is the substring up to (and not including) the last period
343 and not including the directory.
344 %B same as %b, but include the file suffix (text after the last period).
346 substitute a file name that has suffix SUFFIX and is chosen
347 once per compilation, and mark the argument a la %d. To reduce
348 exposure to denial-of-service attacks, the file name is now
349 chosen in a way that is hard to predict even when previously
350 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
351 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
352 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
353 had been pre-processed. Previously, %g was simply substituted
354 with a file name chosen once per compilation, without regard
355 to any appended suffix (which was therefore treated just like
356 ordinary text), making such attacks more likely to succeed.
358 like %g, but generates a new temporary file name even if %uSUFFIX
361 substitutes the last file name generated with %uSUFFIX, generating a
362 new one if there is no such last file name. In the absence of any
363 %uSUFFIX, this is just like %gSUFFIX, except they don't share
364 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
365 would involve the generation of two distinct file names, one
366 for each `%g.s' and another for each `%U.s'. Previously, %U was
367 simply substituted with a file name chosen for the previous %u,
368 without regard to any appended suffix.
370 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
371 writable, and if save-temps is off; otherwise, substitute the name
372 of a temporary file, just like %u. This temporary file is not
373 meant for communication between processes, but rather as a junk
376 substitutes .SUFFIX for the suffixes of a matched switch's args when
377 it is subsequently output with %*. SUFFIX is terminated by the next
379 %d marks the argument containing or following the %d as a
380 temporary file name, so that that file will be deleted if CC exits
381 successfully. Unlike %g, this contributes no text to the argument.
382 %w marks the argument containing or following the %w as the
383 "output file" of this compilation. This puts the argument
384 into the sequence of arguments that %o will substitute later.
386 like %{...} but mark last argument supplied within
387 as a file to be deleted on failure.
388 %o substitutes the names of all the output files, with spaces
389 automatically placed around them. You should write spaces
390 around the %o as well or the results are undefined.
391 %o is for use in the specs for running the linker.
392 Input files whose names have no recognized suffix are not compiled
393 at all, but they are included among the output files, so they will
395 %O substitutes the suffix for object files. Note that this is
396 handled specially when it immediately follows %g, %u, or %U
397 (with or without a suffix argument) because of the need for
398 those to form complete file names. The handling is such that
399 %O is treated exactly as if it had already been substituted,
400 except that %g, %u, and %U do not currently support additional
401 SUFFIX characters following %O as they would following, for
403 %p substitutes the standard macro predefinitions for the
404 current target machine. Use this when running cpp.
405 %P like %p, but puts `__' before and after the name of each macro.
406 (Except macros that already have __.)
408 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
409 %s current argument is the name of a library or startup file of some sort.
410 Search for that file in a standard list of directories
411 and substitute the full name found.
412 %eSTR Print STR as an error message. STR is terminated by a newline.
413 Use this when inconsistent options are detected.
414 %nSTR Print STR as an notice. STR is terminated by a newline.
415 %x{OPTION} Accumulate an option for %X.
416 %X Output the accumulated linker options specified by compilations.
417 %Y Output the accumulated assembler options specified by compilations.
418 %Z Output the accumulated preprocessor options specified by compilations.
419 %v1 Substitute the major version number of GCC.
420 (For version 2.5.3, this is 2.)
421 %v2 Substitute the minor version number of GCC.
422 (For version 2.5.3, this is 5.)
423 %v3 Substitute the patch level number of GCC.
424 (For version 2.5.3, this is 3.)
425 %a process ASM_SPEC as a spec.
426 This allows config.h to specify part of the spec for running as.
427 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
428 used here. This can be used to run a post-processor after the
429 assembler has done its job.
430 %D Dump out a -L option for each directory in startfile_prefixes.
431 If multilib_dir is set, extra entries are generated with it affixed.
432 %l process LINK_SPEC as a spec.
433 %L process LIB_SPEC as a spec.
434 %G process LIBGCC_SPEC as a spec.
435 %M output multilib_dir with directory separators replaced with "_";
436 if multilib_dir is not set or is ".", output "".
437 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
438 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
439 %C process CPP_SPEC as a spec.
440 %1 process CC1_SPEC as a spec.
441 %2 process CC1PLUS_SPEC as a spec.
442 %| output "-" if the input for the current command is coming from a pipe.
443 %* substitute the variable part of a matched option. (See below.)
444 Note that each comma in the substituted string is replaced by
446 %{S} substitutes the -S switch, if that switch was given to CC.
447 If that switch was not specified, this substitutes nothing.
448 Here S is a metasyntactic variable.
449 %{S*} substitutes all the switches specified to CC whose names start
450 with -S. This is used for -o, -I, etc; switches that take
451 arguments. CC considers `-o foo' as being one switch whose
452 name starts with `o'. %{o*} would substitute this text,
453 including the space; thus, two arguments would be generated.
454 %{^S*} likewise, but don't put a blank between a switch and any args.
455 %{S*&T*} likewise, but preserve order of S and T options (the order
456 of S and T in the spec is not significant). Can be any number
457 of ampersand-separated variables; for each the wild card is
458 optional. Useful for CPP as %{D*&U*&A*}.
459 %{S*:X} substitutes X if one or more switches whose names start with -S are
460 specified to CC. Note that the tail part of the -S option
461 (i.e. the part matched by the `*') will be substituted for each
462 occurrence of %* within X.
463 %{<S} remove all occurrences of -S from the command line.
464 Note - this option is position dependent. % commands in the
465 spec string before this option will see -S, % commands in the
466 spec string after this option will not.
467 %{S:X} substitutes X, but only if the -S switch was given to CC.
468 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
469 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
470 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
471 %{.S:X} substitutes X, but only if processing a file with suffix S.
472 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
473 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
474 combined with ! and . as above binding stronger than the OR.
475 %(Spec) processes a specification defined in a specs file as *Spec:
476 %[Spec] as above, but put __ around -D arguments
478 The conditional text X in a %{S:X} or %{!S:X} construct may contain
479 other nested % constructs or spaces, or even newlines. They are
480 processed as usual, as described above.
482 The -O, -f, -m, and -W switches are handled specifically in these
483 constructs. If another value of -O or the negated form of a -f, -m, or
484 -W switch is found later in the command line, the earlier switch
485 value is ignored, except with {S*} where S is just one letter; this
486 passes all matching options.
488 The character | at the beginning of the predicate text is used to indicate
489 that a command should be piped to the following command, but only if -pipe
492 Note that it is built into CC which switches take arguments and which
493 do not. You might think it would be useful to generalize this to
494 allow each compiler's spec to say which switches take arguments. But
495 this cannot be done in a consistent fashion. CC cannot even decide
496 which input files have been specified without knowing which switches
497 take arguments, and it must know which input files to compile in order
498 to tell which compilers to run.
500 CC also knows implicitly that arguments starting in `-l' are to be
501 treated as compiler output files, and passed to the linker in their
502 proper position among the other output files. */
504 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
506 /* config.h can define ASM_SPEC to provide extra args to the assembler
507 or extra switch-translations. */
512 /* config.h can define ASM_FINAL_SPEC to run a post processor after
513 the assembler has run. */
514 #ifndef ASM_FINAL_SPEC
515 #define ASM_FINAL_SPEC ""
518 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
519 or extra switch-translations. */
524 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
525 or extra switch-translations. */
530 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
531 or extra switch-translations. */
533 #define CC1PLUS_SPEC ""
536 /* config.h can define LINK_SPEC to provide extra args to the linker
537 or extra switch-translations. */
542 /* config.h can define LIB_SPEC to override the default libraries. */
544 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
547 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
550 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
551 /* Have gcc do the search for libgcc.a. */
552 #define LIBGCC_SPEC "libgcc.a%s"
554 #define LIBGCC_SPEC "-lgcc"
558 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
559 #ifndef STARTFILE_SPEC
560 #define STARTFILE_SPEC \
561 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
564 /* config.h can define SWITCHES_NEED_SPACES to control which options
565 require spaces between the option and the argument. */
566 #ifndef SWITCHES_NEED_SPACES
567 #define SWITCHES_NEED_SPACES ""
570 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
572 #define ENDFILE_SPEC ""
576 #define LINKER_NAME "collect2"
579 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
581 #ifndef ASM_DEBUG_SPEC
582 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
583 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
584 # define ASM_DEBUG_SPEC \
585 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
586 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
587 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
589 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
590 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
592 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
593 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
597 #ifndef ASM_DEBUG_SPEC
598 # define ASM_DEBUG_SPEC ""
601 /* Here is the spec for running the linker, after compiling all files. */
603 /* This is overridable by the target in case they need to specify the
604 -lgcc and -lc order specially, yet not require them to override all
605 of LINK_COMMAND_SPEC. */
606 #ifndef LINK_GCC_C_SEQUENCE_SPEC
607 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
610 /* -u* was put back because both BSD and SysV seem to support it. */
611 /* %{static:} simply prevents an error message if the target machine
612 doesn't handle -static. */
613 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
614 scripts which exist in user specified directories, or in standard
616 #ifndef LINK_COMMAND_SPEC
617 #define LINK_COMMAND_SPEC "\
618 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
619 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
620 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
621 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
622 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
625 #ifndef LINK_LIBGCC_SPEC
626 # ifdef LINK_LIBGCC_SPECIAL
627 /* Don't generate -L options for startfile prefix list. */
628 # define LINK_LIBGCC_SPEC ""
630 /* Do generate them. */
631 # define LINK_LIBGCC_SPEC "%D"
635 #ifndef STARTFILE_PREFIX_SPEC
636 # define STARTFILE_PREFIX_SPEC ""
639 static const char *asm_debug
;
640 static const char *cpp_spec
= CPP_SPEC
;
641 static const char *cpp_predefines
= CPP_PREDEFINES
;
642 static const char *cc1_spec
= CC1_SPEC
;
643 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
644 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
645 static const char *asm_spec
= ASM_SPEC
;
646 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
647 static const char *link_spec
= LINK_SPEC
;
648 static const char *lib_spec
= LIB_SPEC
;
649 static const char *libgcc_spec
= LIBGCC_SPEC
;
650 static const char *endfile_spec
= ENDFILE_SPEC
;
651 static const char *startfile_spec
= STARTFILE_SPEC
;
652 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
653 static const char *linker_name_spec
= LINKER_NAME
;
654 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
655 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
656 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
658 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
659 There should be no need to override these in target dependent files,
660 but we need to copy them to the specs file so that newer versions
661 of the GCC driver can correctly drive older tool chains with the
662 appropriate -B options. */
664 /* When cpplib handles traditional preprocessing, get rid of this, and
665 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
666 that we default the front end language better. */
667 static const char *trad_capable_cpp
=
668 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
670 static const char *cpp_unique_options
=
671 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
672 %{CC:%{!E:%eGNU C does not support -CC without using -E}}\
673 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %{$} %I\
674 %{MD:-MD %W{!o: %b.d}%W{o*:%.d%*}}\
675 %{MMD:-MMD %W{!o: %b.d}%W{o*:%.d%*}}\
676 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
677 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
678 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
679 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
680 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
683 /* This contains cpp options which are common with cc1_options and are passed
684 only when preprocessing only to avoid duplication. We pass the cc1 spec
685 options to the preprocessor so that it the cc1 spec may manipulate
686 options used to set target flags. Those special target flags settings may
687 in turn cause preprocessor symbols to be defined specially. */
688 static const char *cpp_options
=
689 "%(cpp_unique_options) %1 %{std*} %{W*&pedantic*} %{w} %{m*} %{f*}\
692 /* This contains cpp options which are not passed when the preprocessor
693 output will be used by another program. */
694 static const char *cpp_debug_options
= "%{d*}";
696 /* NB: This is shared amongst all front-ends. */
697 static const char *cc1_options
=
698 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
699 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
700 -auxbase%{c|S:%{o*:-strip%*}%{!o*: %b}}%{!c:%{!S: %b}}\
701 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
702 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
703 %{Qn:-fno-ident} %{--help:--help}\
704 %{--target-help:--target-help}\
705 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
706 %{fsyntax-only:-o %j} %{-param*}";
708 static const char *asm_options
=
709 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
711 static const char *invoke_as
=
712 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
714 /* Some compilers have limits on line lengths, and the multilib_select
715 and/or multilib_matches strings can be very long, so we build them at
717 static struct obstack multilib_obstack
;
718 static const char *multilib_select
;
719 static const char *multilib_matches
;
720 static const char *multilib_defaults
;
721 static const char *multilib_exclusions
;
722 #include "multilib.h"
724 /* Check whether a particular argument is a default argument. */
726 #ifndef MULTILIB_DEFAULTS
727 #define MULTILIB_DEFAULTS { "" }
730 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
734 struct user_specs
*next
;
735 const char *filename
;
738 static struct user_specs
*user_specs_head
, *user_specs_tail
;
740 /* This defines which switch letters take arguments. */
742 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
743 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
744 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
745 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
746 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'B' || (CHAR) == 'b')
748 #ifndef SWITCH_TAKES_ARG
749 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
752 /* This defines which multi-letter switches take arguments. */
754 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
755 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
756 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
757 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
758 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
759 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
760 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
761 || !strcmp (STR, "specs") \
762 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
764 #ifndef WORD_SWITCH_TAKES_ARG
765 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
768 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
769 /* This defines which switches stop a full compilation. */
770 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
771 ((CHAR) == 'c' || (CHAR) == 'S')
773 #ifndef SWITCH_CURTAILS_COMPILATION
774 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
775 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
779 /* Record the mapping from file suffixes for compilation specs. */
783 const char *suffix
; /* Use this compiler for input files
784 whose names end in this suffix. */
786 const char *spec
; /* To use this compiler, run this spec. */
788 const char *cpp_spec
; /* If non-NULL, substitute this spec
789 for `%C', rather than the usual
793 /* Pointer to a vector of `struct compiler' that gives the spec for
794 compiling a file, based on its suffix.
795 A file that does not end in any of these suffixes will be passed
796 unchanged to the loader and nothing else will be done to it.
798 An entry containing two 0s is used to terminate the vector.
800 If multiple entries match a file, the last matching one is used. */
802 static struct compiler
*compilers
;
804 /* Number of entries in `compilers', not counting the null terminator. */
806 static int n_compilers
;
808 /* The default list of file name suffixes and their compilation specs. */
810 static const struct compiler default_compilers
[] =
812 /* Add lists of suffixes of known languages here. If those languages
813 were not present when we built the driver, we will hit these copies
814 and be given a more meaningful error than "file not used since
815 linking is not done". */
816 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
817 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
818 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
820 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
821 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
822 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
823 {".r", "#Ratfor", 0},
824 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
825 {".java", "#Java", 0}, {".class", "#Java", 0},
826 {".zip", "#Java", 0}, {".jar", "#Java", 0},
827 /* Next come the entries for C. */
830 /* cc1 has an integrated ISO C preprocessor. We should invoke the
831 external preprocessor if -save-temps is given. */
832 "%{E|M|MM:%(trad_capable_cpp) %{ansi:-std=c89} %(cpp_options)\
833 %(cpp_debug_options)}\
835 %{traditional|ftraditional:\
836 %eGNU C no longer supports -traditional without -E}\
837 %{save-temps|traditional-cpp:%(trad_capable_cpp) \
838 %{ansi:-std=c89} %(cpp_options) %b.i \n\
839 cc1 -fpreprocessed %b.i %(cc1_options)}\
840 %{!save-temps:%{!traditional-cpp:\
841 cc1 %{ansi:-std=c89} %(cpp_unique_options) %(cc1_options)}}\
842 %{!fsyntax-only:%(invoke_as)}}}}", 0},
844 "%{!E:%e-E required when input is from standard input}\
845 %(trad_capable_cpp) %{ansi:-std=c89} %(cpp_options)", 0},
846 {".h", "@c-header", 0},
848 "%{!E:%ecompilation of header file requested} \
849 %(trad_capable_cpp) %{ansi:-std=c89} %(cpp_options) %(cpp_debug_options)",
851 {".i", "@cpp-output", 0},
853 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
854 {".s", "@assembler", 0},
856 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
857 {".S", "@assembler-with-cpp", 0},
858 {"@assembler-with-cpp",
859 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
860 %{E|M|MM:%(cpp_debug_options)}\
861 %{!M:%{!MM:%{!E:%{!S:-o %{|!pipe:%g.s} |\n\
862 as %(asm_debug) %(asm_options) %{!pipe:%g.s} %A }}}}", 0},
864 /* Mark end of table */
868 /* Number of elements in default_compilers, not counting the terminator. */
870 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
872 /* A vector of options to give to the linker.
873 These options are accumulated by %x,
874 and substituted into the linker command with %X. */
875 static int n_linker_options
;
876 static char **linker_options
;
878 /* A vector of options to give to the assembler.
879 These options are accumulated by -Wa,
880 and substituted into the assembler command with %Y. */
881 static int n_assembler_options
;
882 static char **assembler_options
;
884 /* A vector of options to give to the preprocessor.
885 These options are accumulated by -Wp,
886 and substituted into the preprocessor command with %Z. */
887 static int n_preprocessor_options
;
888 static char **preprocessor_options
;
890 /* Define how to map long options into short ones. */
892 /* This structure describes one mapping. */
895 /* The long option's name. */
896 const char *const name
;
897 /* The equivalent short option. */
898 const char *const equivalent
;
899 /* Argument info. A string of flag chars; NULL equals no options.
900 a => argument required.
901 o => argument optional.
902 j => join argument to equivalent, making one word.
903 * => require other text after NAME as an argument. */
904 const char *const arg_info
;
907 /* This is the table of mappings. Mappings are tried sequentially
908 for each option encountered; the first one that matches, wins. */
910 static const struct option_map option_map
[] =
912 {"--all-warnings", "-Wall", 0},
913 {"--ansi", "-ansi", 0},
914 {"--assemble", "-S", 0},
915 {"--assert", "-A", "a"},
916 {"--classpath", "-fclasspath=", "aj"},
917 {"--bootclasspath", "-fbootclasspath=", "aj"},
918 {"--CLASSPATH", "-fclasspath=", "aj"},
919 {"--comments", "-C", 0},
920 {"--comments-in-macros", "-CC", 0},
921 {"--compile", "-c", 0},
922 {"--debug", "-g", "oj"},
923 {"--define-macro", "-D", "aj"},
924 {"--dependencies", "-M", 0},
925 {"--dump", "-d", "a"},
926 {"--dumpbase", "-dumpbase", "a"},
927 {"--entry", "-e", 0},
928 {"--extra-warnings", "-W", 0},
929 {"--for-assembler", "-Wa", "a"},
930 {"--for-linker", "-Xlinker", "a"},
931 {"--force-link", "-u", "a"},
932 {"--imacros", "-imacros", "a"},
933 {"--include", "-include", "a"},
934 {"--include-barrier", "-I-", 0},
935 {"--include-directory", "-I", "aj"},
936 {"--include-directory-after", "-idirafter", "a"},
937 {"--include-prefix", "-iprefix", "a"},
938 {"--include-with-prefix", "-iwithprefix", "a"},
939 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
940 {"--include-with-prefix-after", "-iwithprefix", "a"},
941 {"--language", "-x", "a"},
942 {"--library-directory", "-L", "a"},
943 {"--machine", "-m", "aj"},
944 {"--machine-", "-m", "*j"},
945 {"--no-line-commands", "-P", 0},
946 {"--no-precompiled-includes", "-noprecomp", 0},
947 {"--no-standard-includes", "-nostdinc", 0},
948 {"--no-standard-libraries", "-nostdlib", 0},
949 {"--no-warnings", "-w", 0},
950 {"--optimize", "-O", "oj"},
951 {"--output", "-o", "a"},
952 {"--output-class-directory", "-foutput-class-dir=", "ja"},
953 {"--param", "--param", "a"},
954 {"--pedantic", "-pedantic", 0},
955 {"--pedantic-errors", "-pedantic-errors", 0},
956 {"--pipe", "-pipe", 0},
957 {"--prefix", "-B", "a"},
958 {"--preprocess", "-E", 0},
959 {"--print-search-dirs", "-print-search-dirs", 0},
960 {"--print-file-name", "-print-file-name=", "aj"},
961 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
962 {"--print-missing-file-dependencies", "-MG", 0},
963 {"--print-multi-lib", "-print-multi-lib", 0},
964 {"--print-multi-directory", "-print-multi-directory", 0},
965 {"--print-prog-name", "-print-prog-name=", "aj"},
966 {"--profile", "-p", 0},
967 {"--profile-blocks", "-a", 0},
968 {"--quiet", "-q", 0},
969 {"--resource", "-fcompile-resource=", "aj"},
970 {"--save-temps", "-save-temps", 0},
971 {"--shared", "-shared", 0},
972 {"--silent", "-q", 0},
973 {"--specs", "-specs=", "aj"},
974 {"--static", "-static", 0},
975 {"--std", "-std=", "aj"},
976 {"--symbolic", "-symbolic", 0},
977 {"--target", "-b", "a"},
978 {"--time", "-time", 0},
979 {"--trace-includes", "-H", 0},
980 {"--traditional", "-traditional", 0},
981 {"--traditional-cpp", "-traditional-cpp", 0},
982 {"--trigraphs", "-trigraphs", 0},
983 {"--undefine-macro", "-U", "aj"},
984 {"--use-version", "-V", "a"},
985 {"--user-dependencies", "-MM", 0},
986 {"--verbose", "-v", 0},
987 {"--warn-", "-W", "*j"},
988 {"--write-dependencies", "-MD", 0},
989 {"--write-user-dependencies", "-MMD", 0},
994 #ifdef TARGET_OPTION_TRANSLATE_TABLE
995 static const struct {
996 const char *const option_found
;
997 const char *const replacements
;
998 } target_option_translations
[] =
1000 TARGET_OPTION_TRANSLATE_TABLE
,
1005 /* Translate the options described by *ARGCP and *ARGVP.
1006 Make a new vector and store it back in *ARGVP,
1007 and store its length in *ARGVC. */
1010 translate_options (argcp
, argvp
)
1012 const char *const **argvp
;
1016 const char *const *argv
= *argvp
;
1017 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1019 (const char **) xmalloc (newvsize
);
1023 newv
[newindex
++] = argv
[i
++];
1027 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1031 target_option_translations
[tott_idx
].option_found
;
1034 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1041 for (sp
= target_option_translations
[tott_idx
].replacements
;
1048 newvsize
+= spaces
* sizeof (const char *);
1049 newv
= (const char **) xrealloc (newv
, newvsize
);
1051 sp
= target_option_translations
[tott_idx
].replacements
;
1060 newv
[newindex
++] = np
;
1061 while (*np
!= ' ' && *np
)
1072 if (target_option_translations
[tott_idx
].option_found
)
1076 /* Translate -- options. */
1077 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1080 /* Find a mapping that applies to this option. */
1081 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1083 size_t optlen
= strlen (option_map
[j
].name
);
1084 size_t arglen
= strlen (argv
[i
]);
1085 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1086 const char *arginfo
= option_map
[j
].arg_info
;
1091 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1093 const char *arg
= 0;
1095 if (arglen
< optlen
)
1098 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1099 if (strlen (option_map
[k
].name
) >= arglen
1100 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1102 error ("ambiguous abbreviation %s", argv
[i
]);
1106 if (k
!= ARRAY_SIZE (option_map
))
1110 if (arglen
> optlen
)
1112 /* If the option has an argument, accept that. */
1113 if (argv
[i
][optlen
] == '=')
1114 arg
= argv
[i
] + optlen
+ 1;
1116 /* If this mapping requires extra text at end of name,
1117 accept that as "argument". */
1118 else if (strchr (arginfo
, '*') != 0)
1119 arg
= argv
[i
] + optlen
;
1121 /* Otherwise, extra text at end means mismatch.
1122 Try other mappings. */
1127 else if (strchr (arginfo
, '*') != 0)
1129 error ("incomplete `%s' option", option_map
[j
].name
);
1133 /* Handle arguments. */
1134 if (strchr (arginfo
, 'a') != 0)
1140 error ("missing argument to `%s' option",
1141 option_map
[j
].name
);
1148 else if (strchr (arginfo
, '*') != 0)
1150 else if (strchr (arginfo
, 'o') == 0)
1153 error ("extraneous argument to `%s' option",
1154 option_map
[j
].name
);
1158 /* Store the translation as one argv elt or as two. */
1159 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1160 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1164 newv
[newindex
++] = option_map
[j
].equivalent
;
1165 newv
[newindex
++] = arg
;
1168 newv
[newindex
++] = option_map
[j
].equivalent
;
1176 /* Handle old-fashioned options--just copy them through,
1177 with their arguments. */
1178 else if (argv
[i
][0] == '-')
1180 const char *p
= argv
[i
] + 1;
1184 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1185 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1186 else if (WORD_SWITCH_TAKES_ARG (p
))
1187 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1188 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1191 else if (! strcmp (p
, "Xlinker"))
1194 /* Watch out for an option at the end of the command line that
1195 is missing arguments, and avoid skipping past the end of the
1197 if (nskip
+ i
> argc
)
1202 newv
[newindex
++] = argv
[i
++];
1207 /* Ordinary operands, or +e options. */
1208 newv
[newindex
++] = argv
[i
++];
1223 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1224 be considered whitespace. */
1225 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1227 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1241 /* Structures to keep track of prefixes to try when looking for files. */
1245 const char *prefix
; /* String to prepend to the path. */
1246 struct prefix_list
*next
; /* Next in linked list. */
1247 int require_machine_suffix
; /* Don't use without machine_suffix. */
1248 /* 2 means try both machine_suffix and just_machine_suffix. */
1249 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1250 int priority
; /* Sort key - priority within list */
1255 struct prefix_list
*plist
; /* List of prefixes to try */
1256 int max_len
; /* Max length of a prefix in PLIST */
1257 const char *name
; /* Name of this list (used in config stuff) */
1260 /* List of prefixes to try when looking for executables. */
1262 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1264 /* List of prefixes to try when looking for startup (crt0) files. */
1266 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1268 /* List of prefixes to try when looking for include files. */
1270 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1272 /* Suffix to attach to directories searched for commands.
1273 This looks like `MACHINE/VERSION/'. */
1275 static const char *machine_suffix
= 0;
1277 /* Suffix to attach to directories searched for commands.
1278 This is just `MACHINE/'. */
1280 static const char *just_machine_suffix
= 0;
1282 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1284 static const char *gcc_exec_prefix
;
1286 /* Default prefixes to attach to command names. */
1288 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1289 #undef MD_EXEC_PREFIX
1290 #undef MD_STARTFILE_PREFIX
1291 #undef MD_STARTFILE_PREFIX_1
1294 /* If no prefixes defined, use the null string, which will disable them. */
1295 #ifndef MD_EXEC_PREFIX
1296 #define MD_EXEC_PREFIX ""
1298 #ifndef MD_STARTFILE_PREFIX
1299 #define MD_STARTFILE_PREFIX ""
1301 #ifndef MD_STARTFILE_PREFIX_1
1302 #define MD_STARTFILE_PREFIX_1 ""
1305 /* Supply defaults for the standard prefixes. */
1307 #ifndef STANDARD_EXEC_PREFIX
1308 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1310 #ifndef STANDARD_STARTFILE_PREFIX
1311 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1313 #ifndef TOOLDIR_BASE_PREFIX
1314 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1316 #ifndef STANDARD_BINDIR_PREFIX
1317 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1320 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1321 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1322 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1324 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1325 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1326 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1327 static const char *const standard_startfile_prefix_1
= "/lib/";
1328 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1330 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1331 static const char *tooldir_prefix
;
1333 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1335 /* Subdirectory to use for locating libraries. Set by
1336 set_multilib_dir based on the compilation options. */
1338 static const char *multilib_dir
;
1340 /* Structure to keep track of the specs that have been defined so far.
1341 These are accessed using %(specname) or %[specname] in a compiler
1346 /* The following 2 fields must be first */
1347 /* to allow EXTRA_SPECS to be initialized */
1348 const char *name
; /* name of the spec. */
1349 const char *ptr
; /* available ptr if no static pointer */
1351 /* The following fields are not initialized */
1352 /* by EXTRA_SPECS */
1353 const char **ptr_spec
; /* pointer to the spec itself. */
1354 struct spec_list
*next
; /* Next spec in linked list. */
1355 int name_len
; /* length of the name */
1356 int alloc_p
; /* whether string was allocated */
1359 #define INIT_STATIC_SPEC(NAME,PTR) \
1360 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1362 /* List of statically defined specs. */
1363 static struct spec_list static_specs
[] =
1365 INIT_STATIC_SPEC ("asm", &asm_spec
),
1366 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1367 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1368 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1369 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1370 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1371 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1372 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1373 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1374 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1375 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1376 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1377 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1378 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1379 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1380 INIT_STATIC_SPEC ("link", &link_spec
),
1381 INIT_STATIC_SPEC ("lib", &lib_spec
),
1382 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1383 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1384 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1385 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1386 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1387 INIT_STATIC_SPEC ("version", &compiler_version
),
1388 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1389 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1390 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1391 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1392 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1393 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1394 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1395 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1396 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1397 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1398 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1401 #ifdef EXTRA_SPECS /* additional specs needed */
1402 /* Structure to keep track of just the first two args of a spec_list.
1403 That is all that the EXTRA_SPECS macro gives us. */
1406 const char *const name
;
1407 const char *const ptr
;
1410 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1411 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1414 /* List of dynamically allocates specs that have been defined so far. */
1416 static struct spec_list
*specs
= (struct spec_list
*) 0;
1418 /* Add appropriate libgcc specs to OBSTACK, taking into account
1419 various permutations of -shared-libgcc, -shared, and such. */
1421 #ifdef ENABLE_SHARED_LIBGCC
1423 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1424 struct obstack
*obstack
;
1425 const char *shared_name
;
1426 const char *static_name
;
1427 const char *eh_name
;
1431 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1432 "}%{!static:%{!static-libgcc:",
1433 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1434 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1435 static_name
, "}}%{shared:",
1437 "%{shared-libgcc:", shared_name
,
1438 "}%{!shared-libgcc:", static_name
, "}",
1444 obstack_grow (obstack
, buf
, strlen (buf
));
1447 #endif /* ENABLE_SHARED_LIBGCC */
1449 /* Initialize the specs lookup routines. */
1454 struct spec_list
*next
= (struct spec_list
*) 0;
1455 struct spec_list
*sl
= (struct spec_list
*) 0;
1459 return; /* Already initialized. */
1462 notice ("Using built-in specs.\n");
1465 extra_specs
= (struct spec_list
*)
1466 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1468 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1470 sl
= &extra_specs
[i
];
1471 sl
->name
= extra_specs_1
[i
].name
;
1472 sl
->ptr
= extra_specs_1
[i
].ptr
;
1474 sl
->name_len
= strlen (sl
->name
);
1475 sl
->ptr_spec
= &sl
->ptr
;
1480 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1481 on ?: in file-scope variable initializations. */
1482 asm_debug
= ASM_DEBUG_SPEC
;
1484 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1486 sl
= &static_specs
[i
];
1491 #ifdef ENABLE_SHARED_LIBGCC
1492 /* ??? If neither -shared-libgcc nor --static-libgcc was
1493 seen, then we should be making an educated guess. Some proposed
1494 heuristics for ELF include:
1496 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1497 program will be doing dynamic loading, which will likely
1498 need the shared libgcc.
1500 (2) If "-ldl", then it's also a fair bet that we're doing
1503 (3) For each ET_DYN we're linking against (either through -lfoo
1504 or /some/path/foo.so), check to see whether it or one of
1505 its dependencies depends on a shared libgcc.
1509 If the runtime is fixed to look for program headers instead
1510 of calling __register_frame_info at all, for each object,
1511 use the shared libgcc if any EH symbol referenced.
1513 If crtstuff is fixed to not invoke __register_frame_info
1514 automatically, for each object, use the shared libgcc if
1515 any non-empty unwind section found.
1517 Doing any of this probably requires invoking an external program to
1518 do the actual object file scanning. */
1520 const char *p
= libgcc_spec
;
1523 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1524 when given the proper command line arguments. */
1527 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1529 init_gcc_specs (&obstack
,
1530 #ifdef NO_SHARED_LIBGCC_MULTILIB
1541 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1543 /* Ug. We don't know shared library extensions. Hope that
1544 systems that use this form don't do shared libraries. */
1545 init_gcc_specs (&obstack
,
1546 #ifdef NO_SHARED_LIBGCC_MULTILIB
1559 obstack_1grow (&obstack
, *p
);
1560 in_sep
= (*p
== ' ');
1565 obstack_1grow (&obstack
, '\0');
1566 libgcc_spec
= obstack_finish (&obstack
);
1569 #ifdef USE_AS_TRADITIONAL_FORMAT
1570 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1572 static const char tf
[] = "--traditional-format ";
1573 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1574 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1575 asm_spec
= obstack_finish (&obstack
);
1579 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1580 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1581 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1582 link_spec
= obstack_finish (&obstack
);
1588 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1589 removed; If the spec starts with a + then SPEC is added to the end of the
1593 set_spec (name
, spec
)
1597 struct spec_list
*sl
;
1598 const char *old_spec
;
1599 int name_len
= strlen (name
);
1602 /* If this is the first call, initialize the statically allocated specs. */
1605 struct spec_list
*next
= (struct spec_list
*) 0;
1606 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1608 sl
= &static_specs
[i
];
1615 /* See if the spec already exists. */
1616 for (sl
= specs
; sl
; sl
= sl
->next
)
1617 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1622 /* Not found - make it. */
1623 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1624 sl
->name
= xstrdup (name
);
1625 sl
->name_len
= name_len
;
1626 sl
->ptr_spec
= &sl
->ptr
;
1628 *(sl
->ptr_spec
) = "";
1633 old_spec
= *(sl
->ptr_spec
);
1634 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1635 ? concat (old_spec
, spec
+ 1, NULL
)
1640 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1643 /* Free the old spec. */
1644 if (old_spec
&& sl
->alloc_p
)
1645 free ((PTR
) old_spec
);
1650 /* Accumulate a command (program name and args), and run it. */
1652 /* Vector of pointers to arguments in the current line of specifications. */
1654 static const char **argbuf
;
1656 /* Number of elements allocated in argbuf. */
1658 static int argbuf_length
;
1660 /* Number of elements in argbuf currently in use (containing args). */
1662 static int argbuf_index
;
1664 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1665 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1668 static struct temp_name
{
1669 const char *suffix
; /* suffix associated with the code. */
1670 int length
; /* strlen (suffix). */
1671 int unique
; /* Indicates whether %g or %u/%U was used. */
1672 const char *filename
; /* associated filename. */
1673 int filename_length
; /* strlen (filename). */
1674 struct temp_name
*next
;
1677 /* Number of commands executed so far. */
1679 static int execution_count
;
1681 /* Number of commands that exited with a signal. */
1683 static int signal_count
;
1685 /* Name with which this program was invoked. */
1687 static const char *programname
;
1689 /* Clear out the vector of arguments (after a command is executed). */
1697 /* Add one argument to the vector at the end.
1698 This is done when a space is seen or at the end of the line.
1699 If DELETE_ALWAYS is nonzero, the arg is a filename
1700 and the file should be deleted eventually.
1701 If DELETE_FAILURE is nonzero, the arg is a filename
1702 and the file should be deleted if this compilation fails. */
1705 store_arg (arg
, delete_always
, delete_failure
)
1707 int delete_always
, delete_failure
;
1709 if (argbuf_index
+ 1 == argbuf_length
)
1711 = (const char **) xrealloc (argbuf
,
1712 (argbuf_length
*= 2) * sizeof (const char *));
1714 argbuf
[argbuf_index
++] = arg
;
1715 argbuf
[argbuf_index
] = 0;
1717 if (delete_always
|| delete_failure
)
1718 record_temp_file (arg
, delete_always
, delete_failure
);
1721 /* Load specs from a file name named FILENAME, replacing occurrences of
1722 various different types of line-endings, \r\n, \n\r and just \r, with
1726 load_specs (filename
)
1727 const char *filename
;
1731 struct stat statbuf
;
1738 notice ("Reading specs from %s\n", filename
);
1740 /* Open and stat the file. */
1741 desc
= open (filename
, O_RDONLY
, 0);
1743 pfatal_with_name (filename
);
1744 if (stat (filename
, &statbuf
) < 0)
1745 pfatal_with_name (filename
);
1747 /* Read contents of file into BUFFER. */
1748 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1749 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1751 pfatal_with_name (filename
);
1752 buffer
[readlen
] = 0;
1755 specs
= xmalloc (readlen
+ 1);
1757 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1763 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1765 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1779 /* Read compilation specs from a file named FILENAME,
1780 replacing the default ones.
1782 A suffix which starts with `*' is a definition for
1783 one of the machine-specific sub-specs. The "suffix" should be
1784 *asm, *cc1, *cpp, *link, *startfile, etc.
1785 The corresponding spec is stored in asm_spec, etc.,
1786 rather than in the `compilers' vector.
1788 Anything invalid in the file is a fatal error. */
1791 read_specs (filename
, main_p
)
1792 const char *filename
;
1798 buffer
= load_specs (filename
);
1800 /* Scan BUFFER for specs, putting them in the vector. */
1806 char *in
, *out
, *p1
, *p2
, *p3
;
1808 /* Advance P in BUFFER to the next nonblank nocomment line. */
1809 p
= skip_whitespace (p
);
1813 /* Is this a special command that starts with '%'? */
1814 /* Don't allow this for the main specs file, since it would
1815 encourage people to overwrite it. */
1816 if (*p
== '%' && !main_p
)
1819 while (*p
&& *p
!= '\n')
1825 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1826 && (p1
[sizeof "%include" - 1] == ' '
1827 || p1
[sizeof "%include" - 1] == '\t'))
1831 p1
+= sizeof ("%include");
1832 while (*p1
== ' ' || *p1
== '\t')
1835 if (*p1
++ != '<' || p
[-2] != '>')
1836 fatal ("specs %%include syntax malformed after %ld characters",
1837 (long) (p1
- buffer
+ 1));
1840 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1841 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1844 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1845 && (p1
[sizeof "%include_noerr" - 1] == ' '
1846 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1850 p1
+= sizeof "%include_noerr";
1851 while (*p1
== ' ' || *p1
== '\t')
1854 if (*p1
++ != '<' || p
[-2] != '>')
1855 fatal ("specs %%include syntax malformed after %ld characters",
1856 (long) (p1
- buffer
+ 1));
1859 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1861 read_specs (new_filename
, FALSE
);
1862 else if (verbose_flag
)
1863 notice ("could not find specs file %s\n", p1
);
1866 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1867 && (p1
[sizeof "%rename" - 1] == ' '
1868 || p1
[sizeof "%rename" - 1] == '\t'))
1871 struct spec_list
*sl
;
1872 struct spec_list
*newsl
;
1874 /* Get original name. */
1875 p1
+= sizeof "%rename";
1876 while (*p1
== ' ' || *p1
== '\t')
1879 if (! ISALPHA ((unsigned char) *p1
))
1880 fatal ("specs %%rename syntax malformed after %ld characters",
1881 (long) (p1
- buffer
));
1884 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1887 if (*p2
!= ' ' && *p2
!= '\t')
1888 fatal ("specs %%rename syntax malformed after %ld characters",
1889 (long) (p2
- buffer
));
1893 while (*p2
== ' ' || *p2
== '\t')
1896 if (! ISALPHA ((unsigned char) *p2
))
1897 fatal ("specs %%rename syntax malformed after %ld characters",
1898 (long) (p2
- buffer
));
1900 /* Get new spec name. */
1902 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1906 fatal ("specs %%rename syntax malformed after %ld characters",
1907 (long) (p3
- buffer
));
1910 for (sl
= specs
; sl
; sl
= sl
->next
)
1911 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1915 fatal ("specs %s spec was not found to be renamed", p1
);
1917 if (strcmp (p1
, p2
) == 0)
1920 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1921 if (strcmp (newsl
->name
, p2
) == 0)
1922 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
1927 notice ("rename spec %s to %s\n", p1
, p2
);
1929 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1933 set_spec (p2
, *(sl
->ptr_spec
));
1935 free ((PTR
) *(sl
->ptr_spec
));
1937 *(sl
->ptr_spec
) = "";
1942 fatal ("specs unknown %% command after %ld characters",
1943 (long) (p1
- buffer
));
1946 /* Find the colon that should end the suffix. */
1948 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1951 /* The colon shouldn't be missing. */
1953 fatal ("specs file malformed after %ld characters",
1954 (long) (p1
- buffer
));
1956 /* Skip back over trailing whitespace. */
1958 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1961 /* Copy the suffix to a string. */
1962 suffix
= save_string (p
, p2
- p
);
1963 /* Find the next line. */
1964 p
= skip_whitespace (p1
+ 1);
1966 fatal ("specs file malformed after %ld characters",
1967 (long) (p
- buffer
));
1970 /* Find next blank line or end of string. */
1971 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1974 /* Specs end at the blank line and do not include the newline. */
1975 spec
= save_string (p
, p1
- p
);
1978 /* Delete backslash-newline sequences from the spec. */
1983 if (in
[0] == '\\' && in
[1] == '\n')
1985 else if (in
[0] == '#')
1986 while (*in
&& *in
!= '\n')
1994 if (suffix
[0] == '*')
1996 if (! strcmp (suffix
, "*link_command"))
1997 link_command_spec
= spec
;
1999 set_spec (suffix
+ 1, spec
);
2003 /* Add this pair to the vector. */
2005 = ((struct compiler
*)
2006 xrealloc (compilers
,
2007 (n_compilers
+ 2) * sizeof (struct compiler
)));
2009 compilers
[n_compilers
].suffix
= suffix
;
2010 compilers
[n_compilers
].spec
= spec
;
2012 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2016 link_command_spec
= spec
;
2019 if (link_command_spec
== 0)
2020 fatal ("spec file has no spec for linking");
2023 /* Record the names of temporary files we tell compilers to write,
2024 and delete them at the end of the run. */
2026 /* This is the common prefix we use to make temp file names.
2027 It is chosen once for each run of this program.
2028 It is substituted into a spec by %g or %j.
2029 Thus, all temp file names contain this prefix.
2030 In practice, all temp file names start with this prefix.
2032 This prefix comes from the envvar TMPDIR if it is defined;
2033 otherwise, from the P_tmpdir macro if that is defined;
2034 otherwise, in /usr/tmp or /tmp;
2035 or finally the current directory if all else fails. */
2037 static const char *temp_filename
;
2039 /* Length of the prefix. */
2041 static int temp_filename_length
;
2043 /* Define the list of temporary files to delete. */
2048 struct temp_file
*next
;
2051 /* Queue of files to delete on success or failure of compilation. */
2052 static struct temp_file
*always_delete_queue
;
2053 /* Queue of files to delete on failure of compilation. */
2054 static struct temp_file
*failure_delete_queue
;
2056 /* Record FILENAME as a file to be deleted automatically.
2057 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2058 otherwise delete it in any case.
2059 FAIL_DELETE nonzero means delete it if a compilation step fails;
2060 otherwise delete it in any case. */
2063 record_temp_file (filename
, always_delete
, fail_delete
)
2064 const char *filename
;
2068 char *const name
= xstrdup (filename
);
2072 struct temp_file
*temp
;
2073 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2074 if (! strcmp (name
, temp
->name
))
2077 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2078 temp
->next
= always_delete_queue
;
2080 always_delete_queue
= temp
;
2087 struct temp_file
*temp
;
2088 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2089 if (! strcmp (name
, temp
->name
))
2092 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2093 temp
->next
= failure_delete_queue
;
2095 failure_delete_queue
= temp
;
2101 /* Delete all the temporary files whose names we previously recorded. */
2104 delete_if_ordinary (name
)
2111 printf ("Delete %s? (y or n) ", name
);
2115 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2118 if (i
== 'y' || i
== 'Y')
2120 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2121 if (unlink (name
) < 0)
2123 perror_with_name (name
);
2127 delete_temp_files ()
2129 struct temp_file
*temp
;
2131 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2132 delete_if_ordinary (temp
->name
);
2133 always_delete_queue
= 0;
2136 /* Delete all the files to be deleted on error. */
2139 delete_failure_queue ()
2141 struct temp_file
*temp
;
2143 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2144 delete_if_ordinary (temp
->name
);
2148 clear_failure_queue ()
2150 failure_delete_queue
= 0;
2153 /* Build a list of search directories from PATHS.
2154 PREFIX is a string to prepend to the list.
2155 If CHECK_DIR_P is non-zero we ensure the directory exists.
2156 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2157 It is also used by the --print-search-dirs flag. */
2160 build_search_list (paths
, prefix
, check_dir_p
)
2161 struct path_prefix
*paths
;
2165 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2167 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2168 int first_time
= TRUE
;
2169 struct prefix_list
*pprefix
;
2171 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2172 obstack_1grow (&collect_obstack
, '=');
2174 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2176 int len
= strlen (pprefix
->prefix
);
2180 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2183 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2186 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2187 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2190 if (just_machine_suffix
2191 && pprefix
->require_machine_suffix
== 2
2193 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2196 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2199 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2200 obstack_grow (&collect_obstack
, just_machine_suffix
,
2204 if (! pprefix
->require_machine_suffix
)
2207 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2210 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2214 obstack_1grow (&collect_obstack
, '\0');
2215 return obstack_finish (&collect_obstack
);
2218 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2222 putenv_from_prefixes (paths
, env_var
)
2223 struct path_prefix
*paths
;
2224 const char *env_var
;
2226 putenv (build_search_list (paths
, env_var
, 1));
2231 /* FIXME: the location independence code for VMS is hairier than this,
2232 and hasn't been written. */
2234 /* Split a filename into component directories. */
2237 split_directories (name
, ptr_num_dirs
)
2246 /* Count the number of directories. Special case MSDOS disk names as part
2247 of the initial directory. */
2249 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2250 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2255 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2257 while ((ch
= *p
++) != '\0')
2259 if (IS_DIR_SEPARATOR (ch
))
2262 while (IS_DIR_SEPARATOR (*p
))
2267 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2269 /* Now copy the directory parts. */
2272 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2273 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2275 dirs
[num_dirs
++] = save_string (p
, 3);
2278 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2281 while ((ch
= *p
++) != '\0')
2283 if (IS_DIR_SEPARATOR (ch
))
2285 while (IS_DIR_SEPARATOR (*p
))
2288 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2294 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2296 dirs
[num_dirs
] = NULL
;
2298 *ptr_num_dirs
= num_dirs
;
2303 /* Release storage held by split directories. */
2306 free_split_directories (dirs
)
2311 while (dirs
[i
] != NULL
)
2314 free ((char *) dirs
);
2317 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2318 to PREFIX starting with the directory portion of PROGNAME and a relative
2319 pathname of the difference between BIN_PREFIX and PREFIX.
2321 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2322 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2323 function will return /red/green/blue/../omega.
2325 If no relative prefix can be found, return NULL. */
2328 make_relative_prefix (progname
, bin_prefix
, prefix
)
2329 const char *progname
;
2330 const char *bin_prefix
;
2333 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2334 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2337 prog_dirs
= split_directories (progname
, &prog_num
);
2338 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2340 /* If there is no full pathname, try to find the program by checking in each
2341 of the directories specified in the PATH environment variable. */
2346 GET_ENVIRONMENT (temp
, "PATH");
2349 char *startp
, *endp
, *nstore
;
2350 size_t prefixlen
= strlen (temp
) + 1;
2354 nstore
= (char *) alloca (prefixlen
+ strlen (progname
) + 1);
2356 startp
= endp
= temp
;
2359 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2364 nstore
[1] = DIR_SEPARATOR
;
2369 strncpy (nstore
, startp
, endp
- startp
);
2370 if (! IS_DIR_SEPARATOR (endp
[-1]))
2372 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2373 nstore
[endp
- startp
+ 1] = 0;
2376 nstore
[endp
- startp
] = 0;
2378 strcat (nstore
, progname
);
2379 if (! access (nstore
, X_OK
)
2380 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2381 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2385 free_split_directories (prog_dirs
);
2387 prog_dirs
= split_directories (progname
, &prog_num
);
2393 endp
= startp
= endp
+ 1;
2401 /* Remove the program name from comparison of directory names. */
2404 /* Determine if the compiler is installed in the standard location, and if
2405 so, we don't need to specify relative directories. Also, if argv[0]
2406 doesn't contain any directory specifiers, there is not much we can do. */
2408 if (prog_num
== bin_num
)
2410 for (i
= 0; i
< bin_num
; i
++)
2412 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2416 if (prog_num
<= 0 || i
== bin_num
)
2419 free_split_directories (prog_dirs
);
2420 free_split_directories (bin_dirs
);
2421 prog_dirs
= bin_dirs
= (char **) 0;
2426 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2428 /* Find how many directories are in common between bin_prefix & prefix. */
2429 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2430 for (common
= 0; common
< n
; common
++)
2432 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2436 /* If there are no common directories, there can be no relative prefix. */
2439 free_split_directories (prog_dirs
);
2440 free_split_directories (bin_dirs
);
2441 free_split_directories (prefix_dirs
);
2445 /* Build up the pathnames in argv[0]. */
2446 for (i
= 0; i
< prog_num
; i
++)
2447 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2449 /* Now build up the ..'s. */
2450 for (i
= common
; i
< n
; i
++)
2452 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2453 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2456 /* Put in directories to move over to prefix. */
2457 for (i
= common
; i
< prefix_num
; i
++)
2458 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2460 free_split_directories (prog_dirs
);
2461 free_split_directories (bin_dirs
);
2462 free_split_directories (prefix_dirs
);
2464 obstack_1grow (&obstack
, '\0');
2465 return obstack_finish (&obstack
);
2469 /* Check whether NAME can be accessed in MODE. This is like access,
2470 except that it never considers directories to be executable. */
2473 access_check (name
, mode
)
2481 if (stat (name
, &st
) < 0
2482 || S_ISDIR (st
.st_mode
))
2486 return access (name
, mode
);
2489 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2490 access to check permissions.
2491 Return 0 if not found, otherwise return its name, allocated with malloc. */
2494 find_a_file (pprefix
, name
, mode
)
2495 struct path_prefix
*pprefix
;
2500 const char *const file_suffix
=
2501 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2502 struct prefix_list
*pl
;
2503 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2505 #ifdef DEFAULT_ASSEMBLER
2506 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2507 return xstrdup (DEFAULT_ASSEMBLER
);
2510 #ifdef DEFAULT_LINKER
2511 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2512 return xstrdup (DEFAULT_LINKER
);
2516 len
+= strlen (machine_suffix
);
2518 temp
= xmalloc (len
);
2520 /* Determine the filename to execute (special case for absolute paths). */
2522 if (IS_ABSOLUTE_PATHNAME (name
))
2524 if (access (name
, mode
) == 0)
2526 strcpy (temp
, name
);
2531 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2535 /* Some systems have a suffix for executable files.
2536 So try appending that first. */
2537 if (file_suffix
[0] != 0)
2539 strcpy (temp
, pl
->prefix
);
2540 strcat (temp
, machine_suffix
);
2541 strcat (temp
, name
);
2542 strcat (temp
, file_suffix
);
2543 if (access_check (temp
, mode
) == 0)
2545 if (pl
->used_flag_ptr
!= 0)
2546 *pl
->used_flag_ptr
= 1;
2551 /* Now try just the name. */
2552 strcpy (temp
, pl
->prefix
);
2553 strcat (temp
, machine_suffix
);
2554 strcat (temp
, name
);
2555 if (access_check (temp
, mode
) == 0)
2557 if (pl
->used_flag_ptr
!= 0)
2558 *pl
->used_flag_ptr
= 1;
2563 /* Certain prefixes are tried with just the machine type,
2564 not the version. This is used for finding as, ld, etc. */
2565 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2567 /* Some systems have a suffix for executable files.
2568 So try appending that first. */
2569 if (file_suffix
[0] != 0)
2571 strcpy (temp
, pl
->prefix
);
2572 strcat (temp
, just_machine_suffix
);
2573 strcat (temp
, name
);
2574 strcat (temp
, file_suffix
);
2575 if (access_check (temp
, mode
) == 0)
2577 if (pl
->used_flag_ptr
!= 0)
2578 *pl
->used_flag_ptr
= 1;
2583 strcpy (temp
, pl
->prefix
);
2584 strcat (temp
, just_machine_suffix
);
2585 strcat (temp
, name
);
2586 if (access_check (temp
, mode
) == 0)
2588 if (pl
->used_flag_ptr
!= 0)
2589 *pl
->used_flag_ptr
= 1;
2594 /* Certain prefixes can't be used without the machine suffix
2595 when the machine or version is explicitly specified. */
2596 if (! pl
->require_machine_suffix
)
2598 /* Some systems have a suffix for executable files.
2599 So try appending that first. */
2600 if (file_suffix
[0] != 0)
2602 strcpy (temp
, pl
->prefix
);
2603 strcat (temp
, name
);
2604 strcat (temp
, file_suffix
);
2605 if (access_check (temp
, mode
) == 0)
2607 if (pl
->used_flag_ptr
!= 0)
2608 *pl
->used_flag_ptr
= 1;
2613 strcpy (temp
, pl
->prefix
);
2614 strcat (temp
, name
);
2615 if (access_check (temp
, mode
) == 0)
2617 if (pl
->used_flag_ptr
!= 0)
2618 *pl
->used_flag_ptr
= 1;
2628 /* Ranking of prefixes in the sort list. -B prefixes are put before
2631 enum path_prefix_priority
2633 PREFIX_PRIORITY_B_OPT
,
2634 PREFIX_PRIORITY_LAST
2637 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2638 order according to PRIORITY. Within each PRIORITY, new entries are
2641 If WARN is nonzero, we will warn if no file is found
2642 through this prefix. WARN should point to an int
2643 which will be set to 1 if this entry is used.
2645 COMPONENT is the value to be passed to update_path.
2647 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2648 the complete value of machine_suffix.
2649 2 means try both machine_suffix and just_machine_suffix. */
2652 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2653 struct path_prefix
*pprefix
;
2655 const char *component
;
2656 /* enum prefix_priority */ int priority
;
2657 int require_machine_suffix
;
2660 struct prefix_list
*pl
, **prev
;
2663 for (prev
= &pprefix
->plist
;
2664 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2665 prev
= &(*prev
)->next
)
2668 /* Keep track of the longest prefix */
2670 prefix
= update_path (prefix
, component
);
2671 len
= strlen (prefix
);
2672 if (len
> pprefix
->max_len
)
2673 pprefix
->max_len
= len
;
2675 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2676 pl
->prefix
= prefix
;
2677 pl
->require_machine_suffix
= require_machine_suffix
;
2678 pl
->used_flag_ptr
= warn
;
2679 pl
->priority
= priority
;
2683 /* Insert after PREV */
2688 /* Execute the command specified by the arguments on the current line of spec.
2689 When using pipes, this includes several piped-together commands
2690 with `|' between them.
2692 Return 0 if successful, -1 if failed. */
2698 int n_commands
; /* # of command. */
2702 const char *prog
; /* program name. */
2703 const char **argv
; /* vector of args. */
2704 int pid
; /* pid of process for this command. */
2707 struct command
*commands
; /* each command buffer with above info. */
2709 /* Count # of piped commands. */
2710 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2711 if (strcmp (argbuf
[i
], "|") == 0)
2714 /* Get storage for each command. */
2715 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2717 /* Split argbuf into its separate piped processes,
2718 and record info about each one.
2719 Also search for the programs that are to be run. */
2721 commands
[0].prog
= argbuf
[0]; /* first command. */
2722 commands
[0].argv
= &argbuf
[0];
2723 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2726 commands
[0].argv
[0] = string
;
2728 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2729 if (strcmp (argbuf
[i
], "|") == 0)
2730 { /* each command. */
2731 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2732 fatal ("-pipe not supported");
2734 argbuf
[i
] = 0; /* termination of command args. */
2735 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2736 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2737 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2739 commands
[n_commands
].argv
[0] = string
;
2743 argbuf
[argbuf_index
] = 0;
2745 /* If -v, print what we are about to do, and maybe query. */
2749 /* For help listings, put a blank line between sub-processes. */
2750 if (print_help_list
)
2751 fputc ('\n', stderr
);
2753 /* Print each piped command as a separate line. */
2754 for (i
= 0; i
< n_commands
; i
++)
2756 const char *const *j
;
2758 if (verbose_only_flag
)
2760 for (j
= commands
[i
].argv
; *j
; j
++)
2763 fprintf (stderr
, " \"");
2764 for (p
= *j
; *p
; ++p
)
2766 if (*p
== '"' || *p
== '\\' || *p
== '$')
2767 fputc ('\\', stderr
);
2770 fputc ('"', stderr
);
2774 for (j
= commands
[i
].argv
; *j
; j
++)
2775 fprintf (stderr
, " %s", *j
);
2777 /* Print a pipe symbol after all but the last command. */
2778 if (i
+ 1 != n_commands
)
2779 fprintf (stderr
, " |");
2780 fprintf (stderr
, "\n");
2783 if (verbose_only_flag
!= 0)
2786 notice ("\nGo ahead? (y or n) ");
2790 while (getchar () != '\n')
2793 if (i
!= 'y' && i
!= 'Y')
2798 /* Run each piped subprocess. */
2800 for (i
= 0; i
< n_commands
; i
++)
2802 char *errmsg_fmt
, *errmsg_arg
;
2803 const char *string
= commands
[i
].argv
[0];
2805 /* For some bizarre reason, the second argument of execvp() is
2806 char *const *, not const char *const *. */
2807 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2808 programname
, temp_filename
,
2809 &errmsg_fmt
, &errmsg_arg
,
2810 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2811 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2812 | (string
== commands
[i
].prog
2813 ? PEXECUTE_SEARCH
: 0)
2814 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2816 if (commands
[i
].pid
== -1)
2817 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2819 if (string
!= commands
[i
].prog
)
2820 free ((PTR
) string
);
2825 /* Wait for all the subprocesses to finish.
2826 We don't care what order they finish in;
2827 we know that N_COMMANDS waits will get them all.
2828 Ignore subprocesses that we don't know about,
2829 since they can be spawned by the process that exec'ed us. */
2833 #ifdef HAVE_GETRUSAGE
2835 double ut
= 0.0, st
= 0.0;
2838 for (i
= 0; i
< n_commands
;)
2844 pid
= pwait (commands
[i
].pid
, &status
, 0);
2848 #ifdef HAVE_GETRUSAGE
2851 /* getrusage returns the total resource usage of all children
2852 up to now. Copy the previous values into prus, get the
2853 current statistics, then take the difference. */
2856 getrusage (RUSAGE_CHILDREN
, &rus
);
2857 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2858 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2859 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2861 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2862 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2863 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2867 for (j
= 0; j
< n_commands
; j
++)
2868 if (commands
[j
].pid
== pid
)
2871 if (WIFSIGNALED (status
))
2874 /* SIGPIPE is a special case. It happens in -pipe mode
2875 when the compiler dies before the preprocessor is
2876 done, or the assembler dies before the compiler is
2877 done. There's generally been an error already, and
2878 this is just fallout. So don't generate another error
2879 unless we would otherwise have succeeded. */
2880 if (WTERMSIG (status
) == SIGPIPE
2881 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2886 Internal error: %s (program %s)\n\
2887 Please submit a full bug report.\n\
2888 See %s for instructions.",
2889 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2894 else if (WIFEXITED (status
)
2895 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2897 if (WEXITSTATUS (status
) > greatest_status
)
2898 greatest_status
= WEXITSTATUS (status
);
2901 #ifdef HAVE_GETRUSAGE
2902 if (report_times
&& ut
+ st
!= 0)
2903 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2912 /* Find all the switches given to us
2913 and make a vector describing them.
2914 The elements of the vector are strings, one per switch given.
2915 If a switch uses following arguments, then the `part1' field
2916 is the switch itself and the `args' field
2917 is a null-terminated vector containing the following arguments.
2918 The `live_cond' field is:
2920 1 if the switch is true in a conditional spec,
2921 -1 if false (overridden by a later switch)
2922 -2 if this switch should be ignored (used in %{<S})
2923 The `validated' field is nonzero if any spec has looked at this switch;
2924 if it remains zero at the end of the run, it must be meaningless. */
2927 #define SWITCH_FALSE -1
2928 #define SWITCH_IGNORE -2
2929 #define SWITCH_LIVE 1
2936 unsigned char validated
;
2937 unsigned char ordering
;
2940 static struct switchstr
*switches
;
2942 static int n_switches
;
2947 const char *language
;
2950 /* Also a vector of input files specified. */
2952 static struct infile
*infiles
;
2956 /* This counts the number of libraries added by lang_specific_driver, so that
2957 we can tell if there were any user supplied any files or libraries. */
2959 static int added_libraries
;
2961 /* And a vector of corresponding output files is made up later. */
2963 const char **outfiles
;
2965 /* Used to track if none of the -B paths are used. */
2968 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2969 static int *warn_std_ptr
= 0;
2971 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2973 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2974 is true if we should look for an executable suffix. DO_OBJ
2975 is true if we should look for an object suffix. */
2978 convert_filename (name
, do_exe
, do_obj
)
2980 int do_exe ATTRIBUTE_UNUSED
;
2981 int do_obj ATTRIBUTE_UNUSED
;
2983 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2991 len
= strlen (name
);
2993 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2994 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2995 if (do_obj
&& len
> 2
2996 && name
[len
- 2] == '.'
2997 && name
[len
- 1] == 'o')
2999 obstack_grow (&obstack
, name
, len
- 2);
3000 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3001 name
= obstack_finish (&obstack
);
3005 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3006 /* If there is no filetype, make it the executable suffix (which includes
3007 the "."). But don't get confused if we have just "-o". */
3008 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3011 for (i
= len
- 1; i
>= 0; i
--)
3012 if (IS_DIR_SEPARATOR (name
[i
]))
3015 for (i
++; i
< len
; i
++)
3019 obstack_grow (&obstack
, name
, len
);
3020 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3021 strlen (TARGET_EXECUTABLE_SUFFIX
));
3022 name
= obstack_finish (&obstack
);
3029 /* Display the command line switches accepted by gcc. */
3033 printf (_("Usage: %s [options] file...\n"), programname
);
3034 fputs (_("Options:\n"), stdout
);
3036 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3037 fputs (_(" --help Display this information\n"), stdout
);
3038 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3040 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3041 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3042 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3043 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3044 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3045 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3046 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3047 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3048 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3050 -print-multi-lib Display the mapping between command line options and\n\
3051 multiple library search directories\n"), stdout
);
3052 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3053 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3054 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3055 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3056 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3057 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3058 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3059 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3060 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3061 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3062 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3063 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3064 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3065 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3066 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3067 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3068 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3069 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3071 -x <language> Specify the language of the following input files\n\
3072 Permissable languages include: c c++ assembler none\n\
3073 'none' means revert to the default behavior of\n\
3074 guessing the language based on the file's extension\n\
3078 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3079 passed on to the various sub-processes invoked by %s. In order to pass\n\
3080 other options on to these processes the -W<letter> options must be used.\n\
3083 /* The rest of the options are displayed by invocations of the various
3088 add_preprocessor_option (option
, len
)
3092 n_preprocessor_options
++;
3094 if (! preprocessor_options
)
3095 preprocessor_options
3096 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3098 preprocessor_options
3099 = (char **) xrealloc (preprocessor_options
,
3100 n_preprocessor_options
* sizeof (char *));
3102 preprocessor_options
[n_preprocessor_options
- 1] =
3103 save_string (option
, len
);
3107 add_assembler_option (option
, len
)
3111 n_assembler_options
++;
3113 if (! assembler_options
)
3115 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3118 = (char **) xrealloc (assembler_options
,
3119 n_assembler_options
* sizeof (char *));
3121 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3125 add_linker_option (option
, len
)
3131 if (! linker_options
)
3133 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3136 = (char **) xrealloc (linker_options
,
3137 n_linker_options
* sizeof (char *));
3139 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3142 /* Create the vector `switches' and its contents.
3143 Store its length in `n_switches'. */
3146 process_command (argc
, argv
)
3148 const char *const *argv
;
3153 const char *spec_lang
= 0;
3154 int last_language_n_infiles
;
3157 int lang_n_infiles
= 0;
3158 #ifdef MODIFY_TARGET_NAME
3159 int is_modify_target_name
;
3163 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3167 added_libraries
= 0;
3169 /* Figure compiler version from version string. */
3171 compiler_version
= temp1
= xstrdup (version_string
);
3173 for (; *temp1
; ++temp1
)
3182 /* If there is a -V or -b option (or both), process it now, before
3183 trying to interpret the rest of the command line. */
3184 if (argc
> 1 && argv
[1][0] == '-'
3185 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3187 const char *new_version
= DEFAULT_TARGET_VERSION
;
3188 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3189 const char *progname
= argv
[0];
3194 while (argc
> 1 && argv
[1][0] == '-'
3195 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3197 char opt
= argv
[1][1];
3199 if (argv
[1][2] != '\0')
3212 fatal ("`-%c' option must have argument", opt
);
3219 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3220 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3222 new_argv0
= xmemdup (progname
, baselen
,
3223 baselen
+ concat_length (new_version
, new_machine
,
3224 "-gcc-", NULL
) + 1);
3225 strcpy (new_argv0
+ baselen
, new_machine
);
3226 strcat (new_argv0
, "-gcc-");
3227 strcat (new_argv0
, new_version
);
3229 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3230 (argc
+ 1) * sizeof (argv
[0]));
3231 new_argv
[0] = new_argv0
;
3233 execvp (new_argv0
, new_argv
);
3234 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3237 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3238 see if we can create it from the pathname specified in argv[0]. */
3241 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3242 if (!gcc_exec_prefix
)
3244 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3245 standard_exec_prefix
);
3246 if (gcc_exec_prefix
)
3247 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3251 if (gcc_exec_prefix
)
3253 int len
= strlen (gcc_exec_prefix
);
3255 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3256 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3258 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3259 if (IS_DIR_SEPARATOR (*temp
)
3260 && strncmp (temp
+ 1, "lib", 3) == 0
3261 && IS_DIR_SEPARATOR (temp
[4])
3262 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3263 len
-= sizeof ("/lib/gcc-lib/") - 1;
3266 set_std_prefix (gcc_exec_prefix
, len
);
3267 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3268 PREFIX_PRIORITY_LAST
, 0, NULL
);
3269 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3270 PREFIX_PRIORITY_LAST
, 0, NULL
);
3273 /* COMPILER_PATH and LIBRARY_PATH have values
3274 that are lists of directory names with colons. */
3276 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3279 const char *startp
, *endp
;
3280 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3282 startp
= endp
= temp
;
3285 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3287 strncpy (nstore
, startp
, endp
- startp
);
3289 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3290 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3292 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3293 nstore
[endp
- startp
+ 1] = 0;
3296 nstore
[endp
- startp
] = 0;
3297 add_prefix (&exec_prefixes
, nstore
, 0,
3298 PREFIX_PRIORITY_LAST
, 0, NULL
);
3299 add_prefix (&include_prefixes
,
3300 concat (nstore
, "include", NULL
),
3301 0, PREFIX_PRIORITY_LAST
, 0, NULL
);
3304 endp
= startp
= endp
+ 1;
3311 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3312 if (temp
&& *cross_compile
== '0')
3314 const char *startp
, *endp
;
3315 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3317 startp
= endp
= temp
;
3320 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3322 strncpy (nstore
, startp
, endp
- startp
);
3324 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3325 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3327 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3328 nstore
[endp
- startp
+ 1] = 0;
3331 nstore
[endp
- startp
] = 0;
3332 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3333 PREFIX_PRIORITY_LAST
, 0, NULL
);
3336 endp
= startp
= endp
+ 1;
3343 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3344 GET_ENVIRONMENT (temp
, "LPATH");
3345 if (temp
&& *cross_compile
== '0')
3347 const char *startp
, *endp
;
3348 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3350 startp
= endp
= temp
;
3353 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3355 strncpy (nstore
, startp
, endp
- startp
);
3357 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3358 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3360 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3361 nstore
[endp
- startp
+ 1] = 0;
3364 nstore
[endp
- startp
] = 0;
3365 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3366 PREFIX_PRIORITY_LAST
, 0, NULL
);
3369 endp
= startp
= endp
+ 1;
3376 /* Convert new-style -- options to old-style. */
3377 translate_options (&argc
, &argv
);
3379 /* Do language-specific adjustment/addition of flags. */
3380 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3382 /* Scan argv twice. Here, the first time, just count how many switches
3383 there will be in their vector, and how many input files in theirs.
3384 Here we also parse the switches that cc itself uses (e.g. -v). */
3386 for (i
= 1; i
< argc
; i
++)
3388 if (! strcmp (argv
[i
], "-dumpspecs"))
3390 struct spec_list
*sl
;
3392 for (sl
= specs
; sl
; sl
= sl
->next
)
3393 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3394 if (link_command_spec
)
3395 printf ("*link_command:\n%s\n\n", link_command_spec
);
3398 else if (! strcmp (argv
[i
], "-dumpversion"))
3400 printf ("%s\n", spec_version
);
3403 else if (! strcmp (argv
[i
], "-dumpmachine"))
3405 printf ("%s\n", spec_machine
);
3408 else if (strcmp (argv
[i
], "-fversion") == 0)
3410 /* translate_options () has turned --version into -fversion. */
3411 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3412 fputs (_("Copyright (C) 2002 Free Software Foundation, Inc.\n"),
3414 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3415 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3419 else if (strcmp (argv
[i
], "-fhelp") == 0)
3421 /* translate_options () has turned --help into -fhelp. */
3422 print_help_list
= 1;
3424 /* We will be passing a dummy file on to the sub-processes. */
3428 /* CPP driver cannot obtain switch from cc1_options. */
3430 add_preprocessor_option ("--help", 6);
3431 add_assembler_option ("--help", 6);
3432 add_linker_option ("--help", 6);
3434 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3436 /* translate_options() has turned --target-help into -ftarget-help. */
3437 target_help_flag
= 1;
3439 /* We will be passing a dummy file on to the sub-processes. */
3443 /* CPP driver cannot obtain switch from cc1_options. */
3445 add_preprocessor_option ("--target-help", 13);
3446 add_assembler_option ("--target-help", 13);
3447 add_linker_option ("--target-help", 13);
3449 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3451 pass_exit_codes
= 1;
3454 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3455 print_search_dirs
= 1;
3456 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3457 print_file_name
= "libgcc.a";
3458 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3459 print_file_name
= argv
[i
] + 17;
3460 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3461 print_prog_name
= argv
[i
] + 17;
3462 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3463 print_multi_lib
= 1;
3464 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3465 print_multi_directory
= 1;
3466 else if (! strncmp (argv
[i
], "-Wa,", 4))
3469 /* Pass the rest of this option to the assembler. */
3471 /* Split the argument at commas. */
3473 for (j
= 4; argv
[i
][j
]; j
++)
3474 if (argv
[i
][j
] == ',')
3476 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3480 /* Record the part after the last comma. */
3481 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3483 else if (! strncmp (argv
[i
], "-Wp,", 4))
3486 /* Pass the rest of this option to the preprocessor. */
3488 /* Split the argument at commas. */
3490 for (j
= 4; argv
[i
][j
]; j
++)
3491 if (argv
[i
][j
] == ',')
3493 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3497 /* Record the part after the last comma. */
3498 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3500 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3501 /* The +e options to the C++ front-end. */
3503 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3506 /* Split the argument at commas. */
3507 for (j
= 3; argv
[i
][j
]; j
++)
3508 n_infiles
+= (argv
[i
][j
] == ',');
3510 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3513 fatal ("argument to `-Xlinker' is missing");
3518 else if (strcmp (argv
[i
], "-l") == 0)
3521 fatal ("argument to `-l' is missing");
3526 else if (strncmp (argv
[i
], "-l", 2) == 0)
3528 else if (strcmp (argv
[i
], "-save-temps") == 0)
3530 save_temps_flag
= 1;
3533 else if (strcmp (argv
[i
], "-specs") == 0)
3535 struct user_specs
*user
= (struct user_specs
*)
3536 xmalloc (sizeof (struct user_specs
));
3538 fatal ("argument to `-specs' is missing");
3540 user
->next
= (struct user_specs
*) 0;
3541 user
->filename
= argv
[i
];
3542 if (user_specs_tail
)
3543 user_specs_tail
->next
= user
;
3545 user_specs_head
= user
;
3546 user_specs_tail
= user
;
3548 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3550 struct user_specs
*user
= (struct user_specs
*)
3551 xmalloc (sizeof (struct user_specs
));
3552 if (strlen (argv
[i
]) == 7)
3553 fatal ("argument to `-specs=' is missing");
3555 user
->next
= (struct user_specs
*) 0;
3556 user
->filename
= argv
[i
] + 7;
3557 if (user_specs_tail
)
3558 user_specs_tail
->next
= user
;
3560 user_specs_head
= user
;
3561 user_specs_tail
= user
;
3563 else if (strcmp (argv
[i
], "-time") == 0)
3565 else if (strcmp (argv
[i
], "-###") == 0)
3567 /* This is similar to -v except that there is no execution
3568 of the commands and the echoed arguments are quoted. It
3569 is intended for use in shell scripts to capture the
3570 driver-generated command line. */
3571 verbose_only_flag
++;
3574 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3576 const char *p
= &argv
[i
][1];
3583 fatal ("`-%c' must come at the start of the command line", c
);
3591 if (p
[1] == 0 && i
+ 1 == argc
)
3592 fatal ("argument to `-B' is missing");
3598 len
= strlen (value
);
3600 /* Catch the case where the user has forgotten to append a
3601 directory separator to the path. Note, they may be using
3602 -B to add an executable name prefix, eg "i386-elf-", in
3603 order to distinguish between multiple installations of
3604 GCC in the same directory. Hence we must check to see
3605 if appending a directory separator actually makes a
3606 valid directory name. */
3607 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3608 && is_directory (value
, "", 0))
3610 char *tmp
= xmalloc (len
+ 2);
3611 strcpy (tmp
, value
);
3612 tmp
[len
] = DIR_SEPARATOR
;
3617 /* As a kludge, if the arg is "[foo/]stageN/", just
3618 add "[foo/]include" to the include prefix. */
3621 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3622 && strncmp (value
+ len
- 7, "stage", 5) == 0
3623 && ISDIGIT (value
[len
- 2])
3624 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3627 add_prefix (&include_prefixes
, "include", NULL
,
3628 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3631 char * string
= xmalloc (len
+ 1);
3633 strncpy (string
, value
, len
- 7);
3634 strcpy (string
+ len
- 7, "include");
3635 add_prefix (&include_prefixes
, string
, NULL
,
3636 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3640 add_prefix (&exec_prefixes
, value
, NULL
,
3641 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3642 add_prefix (&startfile_prefixes
, value
, NULL
,
3643 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3644 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3645 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3650 case 'v': /* Print our subcommands and print versions. */
3652 /* If they do anything other than exactly `-v', don't set
3653 verbose_flag; rather, continue on to give the error. */
3671 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3676 /* Forward scan, just in case -S or -c is specified
3683 if (argv
[j
][0] == '-')
3685 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3691 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3692 j
+= skip
- (argv
[j
][2] != 0);
3693 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3700 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3702 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3704 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3711 #ifdef MODIFY_TARGET_NAME
3712 is_modify_target_name
= 0;
3714 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3715 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3718 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3719 + strlen (spec_machine
));
3722 int made_addition
= 0;
3724 is_modify_target_name
= 1;
3725 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3727 if (modify_target
[j
].add_del
== DELETE
3728 && (! strncmp (q
, modify_target
[j
].str
,
3729 strlen (modify_target
[j
].str
))))
3730 p
+= strlen (modify_target
[j
].str
);
3731 else if (modify_target
[j
].add_del
== ADD
3732 && ! made_addition
&& *p
== '-')
3734 for (r
= modify_target
[j
].str
; *r
!= 0; )
3742 spec_machine
= new_name
;
3745 if (is_modify_target_name
)
3751 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3752 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3753 else if (WORD_SWITCH_TAKES_ARG (p
))
3754 i
+= WORD_SWITCH_TAKES_ARG (p
);
3764 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3765 fatal ("cannot specify -o with -c or -S and multiple compilations");
3767 /* Set up the search paths before we go looking for config files. */
3769 /* These come before the md prefixes so that we will find gcc's subcommands
3770 (such as cpp) rather than those of the host system. */
3771 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3772 as well as trying the machine and the version. */
3774 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3775 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3776 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3777 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3778 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3779 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3782 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3783 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3784 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3785 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3787 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3788 dir_separator_str
, NULL
);
3790 /* If tooldir is relative, base it on exec_prefixes. A relative
3791 tooldir lets us move the installed tree as a unit.
3793 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3794 directories, so that we can search both the user specified directory
3795 and the standard place. */
3797 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3799 if (gcc_exec_prefix
)
3801 char *gcc_exec_tooldir_prefix
3802 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3803 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3805 add_prefix (&exec_prefixes
,
3806 concat (gcc_exec_tooldir_prefix
, "bin",
3807 dir_separator_str
, NULL
),
3808 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3809 add_prefix (&startfile_prefixes
,
3810 concat (gcc_exec_tooldir_prefix
, "lib",
3811 dir_separator_str
, NULL
),
3812 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3815 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3816 dir_separator_str
, spec_version
,
3817 dir_separator_str
, tooldir_prefix
, NULL
);
3820 add_prefix (&exec_prefixes
,
3821 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3822 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3823 add_prefix (&startfile_prefixes
,
3824 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3825 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3827 /* More prefixes are enabled in main, after we read the specs file
3828 and determine whether this is cross-compilation or not. */
3830 /* Then create the space for the vectors and scan again. */
3832 switches
= ((struct switchstr
*)
3833 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3834 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3837 last_language_n_infiles
= -1;
3839 /* This, time, copy the text of each switch and store a pointer
3840 to the copy in the vector of switches.
3841 Store all the infiles in their vector. */
3843 for (i
= 1; i
< argc
; i
++)
3845 /* Just skip the switches that were handled by the preceding loop. */
3846 #ifdef MODIFY_TARGET_NAME
3847 is_modify_target_name
= 0;
3849 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3850 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3851 is_modify_target_name
= 1;
3853 if (is_modify_target_name
)
3857 if (! strncmp (argv
[i
], "-Wa,", 4))
3859 else if (! strncmp (argv
[i
], "-Wp,", 4))
3861 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3863 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3865 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3867 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3869 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3871 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3873 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3875 else if (! strcmp (argv
[i
], "-ftarget-help"))
3877 else if (! strcmp (argv
[i
], "-fhelp"))
3879 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3881 /* Compensate for the +e options to the C++ front-end;
3882 they're there simply for cfront call-compatibility. We do
3883 some magic in default_compilers to pass them down properly.
3884 Note we deliberately start at the `+' here, to avoid passing
3885 -e0 or -e1 down into the linker. */
3886 switches
[n_switches
].part1
= &argv
[i
][0];
3887 switches
[n_switches
].args
= 0;
3888 switches
[n_switches
].live_cond
= SWITCH_OK
;
3889 switches
[n_switches
].validated
= 0;
3892 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3895 /* Split the argument at commas. */
3897 for (j
= 4; argv
[i
][j
]; j
++)
3898 if (argv
[i
][j
] == ',')
3900 infiles
[n_infiles
].language
= "*";
3901 infiles
[n_infiles
++].name
3902 = save_string (argv
[i
] + prev
, j
- prev
);
3905 /* Record the part after the last comma. */
3906 infiles
[n_infiles
].language
= "*";
3907 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3909 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3911 infiles
[n_infiles
].language
= "*";
3912 infiles
[n_infiles
++].name
= argv
[++i
];
3914 else if (strcmp (argv
[i
], "-l") == 0)
3915 { /* POSIX allows separation of -l and the lib arg;
3916 canonicalize by concatenating -l with its arg */
3917 infiles
[n_infiles
].language
= "*";
3918 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3920 else if (strncmp (argv
[i
], "-l", 2) == 0)
3922 infiles
[n_infiles
].language
= "*";
3923 infiles
[n_infiles
++].name
= argv
[i
];
3925 else if (strcmp (argv
[i
], "-specs") == 0)
3927 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3929 else if (strcmp (argv
[i
], "-time") == 0)
3931 else if ((save_temps_flag
|| report_times
)
3932 && strcmp (argv
[i
], "-pipe") == 0)
3934 /* -save-temps overrides -pipe, so that temp files are produced */
3935 if (save_temps_flag
)
3936 error ("warning: -pipe ignored because -save-temps specified");
3937 /* -time overrides -pipe because we can't get correct stats when
3938 multiple children are running at once. */
3939 else if (report_times
)
3940 error ("warning: -pipe ignored because -time specified");
3942 else if (strcmp (argv
[i
], "-###") == 0)
3944 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3946 const char *p
= &argv
[i
][1];
3951 if (p
[1] == 0 && i
+ 1 == argc
)
3952 fatal ("argument to `-x' is missing");
3954 spec_lang
= argv
[++i
];
3957 if (! strcmp (spec_lang
, "none"))
3958 /* Suppress the warning if -xnone comes after the last input
3959 file, because alternate command interfaces like g++ might
3960 find it useful to place -xnone after each input file. */
3963 last_language_n_infiles
= n_infiles
;
3966 switches
[n_switches
].part1
= p
;
3967 /* Deal with option arguments in separate argv elements. */
3968 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3969 || WORD_SWITCH_TAKES_ARG (p
))
3972 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3976 /* Count only the option arguments in separate argv elements. */
3977 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3979 if (i
+ n_args
>= argc
)
3980 fatal ("argument to `-%s' is missing", p
);
3981 switches
[n_switches
].args
3982 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3984 switches
[n_switches
].args
[j
++] = argv
[++i
];
3985 /* Null-terminate the vector. */
3986 switches
[n_switches
].args
[j
] = 0;
3988 else if (strchr (switches_need_spaces
, c
))
3990 /* On some systems, ld cannot handle some options without
3991 a space. So split the option from its argument. */
3992 char *part1
= (char *) xmalloc (2);
3996 switches
[n_switches
].part1
= part1
;
3997 switches
[n_switches
].args
3998 = (const char **) xmalloc (2 * sizeof (const char *));
3999 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4000 switches
[n_switches
].args
[1] = 0;
4003 switches
[n_switches
].args
= 0;
4005 switches
[n_switches
].live_cond
= SWITCH_OK
;
4006 switches
[n_switches
].validated
= 0;
4007 switches
[n_switches
].ordering
= 0;
4008 /* These are always valid, since gcc.c itself understands it. */
4009 if (!strcmp (p
, "save-temps")
4010 || !strcmp (p
, "static-libgcc")
4011 || !strcmp (p
, "shared-libgcc"))
4012 switches
[n_switches
].validated
= 1;
4015 char ch
= switches
[n_switches
].part1
[0];
4017 switches
[n_switches
].validated
= 1;
4023 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4024 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4027 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4029 perror_with_name (argv
[i
]);
4034 infiles
[n_infiles
].language
= spec_lang
;
4035 infiles
[n_infiles
++].name
= argv
[i
];
4040 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4041 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4043 /* Ensure we only invoke each subprocess once. */
4044 if (target_help_flag
|| print_help_list
)
4048 /* Create a dummy input file, so that we can pass --target-help on to
4049 the various sub-processes. */
4050 infiles
[0].language
= "c";
4051 infiles
[0].name
= "help-dummy";
4053 if (target_help_flag
)
4055 switches
[n_switches
].part1
= "--target-help";
4056 switches
[n_switches
].args
= 0;
4057 switches
[n_switches
].live_cond
= SWITCH_OK
;
4058 switches
[n_switches
].validated
= 0;
4063 if (print_help_list
)
4065 switches
[n_switches
].part1
= "--help";
4066 switches
[n_switches
].args
= 0;
4067 switches
[n_switches
].live_cond
= SWITCH_OK
;
4068 switches
[n_switches
].validated
= 0;
4074 switches
[n_switches
].part1
= 0;
4075 infiles
[n_infiles
].name
= 0;
4078 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
4079 and place that in the environment. */
4082 set_collect_gcc_options ()
4087 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4089 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4090 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4093 for (i
= 0; (int) i
< n_switches
; i
++)
4095 const char *const *args
;
4098 obstack_grow (&collect_obstack
, " ", 1);
4102 /* Ignore elided switches. */
4103 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4106 obstack_grow (&collect_obstack
, "'-", 2);
4107 q
= switches
[i
].part1
;
4108 while ((p
= strchr (q
, '\'')))
4110 obstack_grow (&collect_obstack
, q
, p
- q
);
4111 obstack_grow (&collect_obstack
, "'\\''", 4);
4114 obstack_grow (&collect_obstack
, q
, strlen (q
));
4115 obstack_grow (&collect_obstack
, "'", 1);
4117 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4119 obstack_grow (&collect_obstack
, " '", 2);
4121 while ((p
= strchr (q
, '\'')))
4123 obstack_grow (&collect_obstack
, q
, p
- q
);
4124 obstack_grow (&collect_obstack
, "'\\''", 4);
4127 obstack_grow (&collect_obstack
, q
, strlen (q
));
4128 obstack_grow (&collect_obstack
, "'", 1);
4131 obstack_grow (&collect_obstack
, "\0", 1);
4132 putenv (obstack_finish (&collect_obstack
));
4135 /* Process a spec string, accumulating and running commands. */
4137 /* These variables describe the input file name.
4138 input_file_number is the index on outfiles of this file,
4139 so that the output file name can be stored for later use by %o.
4140 input_basename is the start of the part of the input file
4141 sans all directory names, and basename_length is the number
4142 of characters starting there excluding the suffix .c or whatever. */
4144 const char *input_filename
;
4145 static int input_file_number
;
4146 size_t input_filename_length
;
4147 static int basename_length
;
4148 static int suffixed_basename_length
;
4149 static const char *input_basename
;
4150 static const char *input_suffix
;
4151 static struct stat input_stat
;
4152 static int input_stat_set
;
4154 /* The compiler used to process the current input file. */
4155 static struct compiler
*input_file_compiler
;
4157 /* These are variables used within do_spec and do_spec_1. */
4159 /* Nonzero if an arg has been started and not yet terminated
4160 (with space, tab or newline). */
4161 static int arg_going
;
4163 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4164 is a temporary file name. */
4165 static int delete_this_arg
;
4167 /* Nonzero means %w has been seen; the next arg to be terminated
4168 is the output file name of this compilation. */
4169 static int this_is_output_file
;
4171 /* Nonzero means %s has been seen; the next arg to be terminated
4172 is the name of a library file and we should try the standard
4173 search dirs for it. */
4174 static int this_is_library_file
;
4176 /* Nonzero means that the input of this command is coming from a pipe. */
4177 static int input_from_pipe
;
4179 /* Nonnull means substitute this for any suffix when outputting a switches
4181 static const char *suffix_subst
;
4183 /* Process the spec SPEC and run the commands specified therein.
4184 Returns 0 if the spec is successfully processed; -1 if failed. */
4192 value
= do_spec_2 (spec
);
4194 /* Force out any unfinished command.
4195 If -pipe, this forces out the last command if it ended in `|'. */
4198 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4201 set_collect_gcc_options ();
4203 if (argbuf_index
> 0)
4216 delete_this_arg
= 0;
4217 this_is_output_file
= 0;
4218 this_is_library_file
= 0;
4219 input_from_pipe
= 0;
4220 suffix_subst
= NULL
;
4222 return do_spec_1 (spec
, 0, NULL
);
4225 /* Process the sub-spec SPEC as a portion of a larger spec.
4226 This is like processing a whole spec except that we do
4227 not initialize at the beginning and we do not supply a
4228 newline by default at the end.
4229 INSWITCH nonzero means don't process %-sequences in SPEC;
4230 in this case, % is treated as an ordinary character.
4231 This is used while substituting switches.
4232 INSWITCH nonzero also causes SPC not to terminate an argument.
4234 Value is zero unless a line was finished
4235 and the command on that line reported an error. */
4238 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4241 const char *soft_matched_part
;
4243 const char *p
= spec
;
4250 /* If substituting a switch, treat all chars like letters.
4251 Otherwise, NL, SPC, TAB and % are special. */
4252 switch (inswitch
? 'a' : c
)
4255 /* End of line: finish any pending argument,
4256 then run the pending command if one has been started. */
4259 obstack_1grow (&obstack
, 0);
4260 string
= obstack_finish (&obstack
);
4261 if (this_is_library_file
)
4262 string
= find_file (string
);
4263 store_arg (string
, delete_this_arg
, this_is_output_file
);
4264 if (this_is_output_file
)
4265 outfiles
[input_file_number
] = string
;
4269 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4271 for (i
= 0; i
< n_switches
; i
++)
4272 if (!strcmp (switches
[i
].part1
, "pipe"))
4275 /* A `|' before the newline means use a pipe here,
4276 but only if -pipe was specified.
4277 Otherwise, execute now and don't pass the `|' as an arg. */
4280 input_from_pipe
= 1;
4281 switches
[i
].validated
= 1;
4288 set_collect_gcc_options ();
4290 if (argbuf_index
> 0)
4296 /* Reinitialize for a new command, and for a new argument. */
4299 delete_this_arg
= 0;
4300 this_is_output_file
= 0;
4301 this_is_library_file
= 0;
4302 input_from_pipe
= 0;
4306 /* End any pending argument. */
4309 obstack_1grow (&obstack
, 0);
4310 string
= obstack_finish (&obstack
);
4311 if (this_is_library_file
)
4312 string
= find_file (string
);
4313 store_arg (string
, delete_this_arg
, this_is_output_file
);
4314 if (this_is_output_file
)
4315 outfiles
[input_file_number
] = string
;
4319 obstack_1grow (&obstack
, c
);
4325 /* Space or tab ends an argument if one is pending. */
4328 obstack_1grow (&obstack
, 0);
4329 string
= obstack_finish (&obstack
);
4330 if (this_is_library_file
)
4331 string
= find_file (string
);
4332 store_arg (string
, delete_this_arg
, this_is_output_file
);
4333 if (this_is_output_file
)
4334 outfiles
[input_file_number
] = string
;
4336 /* Reinitialize for a new argument. */
4338 delete_this_arg
= 0;
4339 this_is_output_file
= 0;
4340 this_is_library_file
= 0;
4347 fatal ("invalid specification! Bug in cc");
4350 obstack_grow (&obstack
, input_basename
, basename_length
);
4355 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4360 delete_this_arg
= 2;
4363 /* Dump out the directories specified with LIBRARY_PATH,
4364 followed by the absolute directories
4365 that we search for startfiles. */
4368 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4369 size_t bufsize
= 100;
4370 char *buffer
= (char *) xmalloc (bufsize
);
4373 for (; pl
; pl
= pl
->next
)
4375 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4376 /* Used on systems which record the specified -L dirs
4377 and use them to search for dynamic linking. */
4378 /* Relative directories always come from -B,
4379 and it is better not to use them for searching
4380 at run time. In particular, stage1 loses. */
4381 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4384 /* Try subdirectory if there is one. */
4385 if (multilib_dir
!= NULL
)
4389 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4391 bufsize
= (strlen (pl
->prefix
)
4392 + strlen (machine_suffix
)) * 2 + 1;
4393 buffer
= (char *) xrealloc (buffer
, bufsize
);
4394 strcpy (buffer
, pl
->prefix
);
4395 strcat (buffer
, machine_suffix
);
4396 if (is_directory (buffer
, multilib_dir
, 1))
4398 do_spec_1 ("-L", 0, NULL
);
4399 #ifdef SPACE_AFTER_L_OPTION
4400 do_spec_1 (" ", 0, NULL
);
4402 do_spec_1 (buffer
, 1, NULL
);
4403 do_spec_1 (multilib_dir
, 1, NULL
);
4404 /* Make this a separate argument. */
4405 do_spec_1 (" ", 0, NULL
);
4408 if (!pl
->require_machine_suffix
)
4410 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4412 do_spec_1 ("-L", 0, NULL
);
4413 #ifdef SPACE_AFTER_L_OPTION
4414 do_spec_1 (" ", 0, NULL
);
4416 do_spec_1 (pl
->prefix
, 1, NULL
);
4417 do_spec_1 (multilib_dir
, 1, NULL
);
4418 /* Make this a separate argument. */
4419 do_spec_1 (" ", 0, NULL
);
4425 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4427 do_spec_1 ("-L", 0, NULL
);
4428 #ifdef SPACE_AFTER_L_OPTION
4429 do_spec_1 (" ", 0, NULL
);
4431 do_spec_1 (pl
->prefix
, 1, NULL
);
4432 /* Remove slash from machine_suffix. */
4433 if (strlen (machine_suffix
) >= bufsize
)
4434 bufsize
= strlen (machine_suffix
) * 2 + 1;
4435 buffer
= (char *) xrealloc (buffer
, bufsize
);
4436 strcpy (buffer
, machine_suffix
);
4437 idx
= strlen (buffer
);
4438 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4439 buffer
[idx
- 1] = 0;
4440 do_spec_1 (buffer
, 1, NULL
);
4441 /* Make this a separate argument. */
4442 do_spec_1 (" ", 0, NULL
);
4445 if (!pl
->require_machine_suffix
)
4447 if (is_directory (pl
->prefix
, "", 1))
4449 do_spec_1 ("-L", 0, NULL
);
4450 #ifdef SPACE_AFTER_L_OPTION
4451 do_spec_1 (" ", 0, NULL
);
4453 /* Remove slash from pl->prefix. */
4454 if (strlen (pl
->prefix
) >= bufsize
)
4455 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4456 buffer
= (char *) xrealloc (buffer
, bufsize
);
4457 strcpy (buffer
, pl
->prefix
);
4458 idx
= strlen (buffer
);
4459 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4460 buffer
[idx
- 1] = 0;
4461 do_spec_1 (buffer
, 1, NULL
);
4462 /* Make this a separate argument. */
4463 do_spec_1 (" ", 0, NULL
);
4472 /* %efoo means report an error with `foo' as error message
4473 and don't execute any more commands for this file. */
4477 while (*p
!= 0 && *p
!= '\n')
4479 buf
= (char *) alloca (p
- q
+ 1);
4480 strncpy (buf
, q
, p
- q
);
4487 /* %nfoo means report an notice with `foo' on stderr. */
4491 while (*p
!= 0 && *p
!= '\n')
4493 buf
= (char *) alloca (p
- q
+ 1);
4494 strncpy (buf
, q
, p
- q
);
4496 notice ("%s\n", buf
);
4506 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4507 and it is not a directory, and it is writable, use it.
4508 Otherwise, fall through and treat this like any other
4511 if ((!save_temps_flag
)
4512 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4513 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4515 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4516 strlen (HOST_BIT_BUCKET
));
4517 delete_this_arg
= 0;
4526 struct temp_name
*t
;
4528 const char *suffix
= p
;
4529 char *saved_suffix
= NULL
;
4531 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4533 suffix_length
= p
- suffix
;
4534 if (p
[0] == '%' && p
[1] == 'O')
4537 /* We don't support extra suffix characters after %O. */
4538 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4540 if (suffix_length
== 0)
4541 suffix
= TARGET_OBJECT_SUFFIX
;
4545 = (char *) xmalloc (suffix_length
4546 + strlen (TARGET_OBJECT_SUFFIX
));
4547 strncpy (saved_suffix
, suffix
, suffix_length
);
4548 strcpy (saved_suffix
+ suffix_length
,
4549 TARGET_OBJECT_SUFFIX
);
4551 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4554 /* If the input_filename has the same suffix specified
4555 for the %g, %u, or %U, and -save-temps is specified,
4556 we could end up using that file as an intermediate
4557 thus clobbering the user's source file (.e.g.,
4558 gcc -save-temps foo.s would clobber foo.s with the
4559 output of cpp0). So check for this condition and
4560 generate a temp file as the intermediate. */
4562 if (save_temps_flag
)
4564 temp_filename_length
= basename_length
+ suffix_length
;
4565 temp_filename
= alloca (temp_filename_length
+ 1);
4566 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4567 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4569 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4570 if (strcmp (temp_filename
, input_filename
) != 0)
4572 struct stat st_temp
;
4574 /* Note, set_input() resets input_stat_set to 0. */
4575 if (input_stat_set
== 0)
4577 input_stat_set
= stat (input_filename
, &input_stat
);
4578 if (input_stat_set
>= 0)
4582 /* If we have the stat for the input_filename
4583 and we can do the stat for the temp_filename
4584 then the they could still refer to the same
4585 file if st_dev/st_ino's are the same. */
4587 if (input_stat_set
!= 1
4588 || stat (temp_filename
, &st_temp
) < 0
4589 || input_stat
.st_dev
!= st_temp
.st_dev
4590 || input_stat
.st_ino
!= st_temp
.st_ino
)
4592 temp_filename
= save_string (temp_filename
,
4593 temp_filename_length
+ 1);
4594 obstack_grow (&obstack
, temp_filename
,
4595 temp_filename_length
);
4602 /* See if we already have an association of %g/%u/%U and
4604 for (t
= temp_names
; t
; t
= t
->next
)
4605 if (t
->length
== suffix_length
4606 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4607 && t
->unique
== (c
!= 'g'))
4610 /* Make a new association if needed. %u and %j
4612 if (t
== 0 || c
== 'u' || c
== 'j')
4616 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4617 t
->next
= temp_names
;
4620 t
->length
= suffix_length
;
4623 t
->suffix
= saved_suffix
;
4624 saved_suffix
= NULL
;
4627 t
->suffix
= save_string (suffix
, suffix_length
);
4628 t
->unique
= (c
!= 'g');
4629 temp_filename
= make_temp_file (t
->suffix
);
4630 temp_filename_length
= strlen (temp_filename
);
4631 t
->filename
= temp_filename
;
4632 t
->filename_length
= temp_filename_length
;
4636 free (saved_suffix
);
4638 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4639 delete_this_arg
= 1;
4645 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4651 struct prefix_list
*pl
= include_prefixes
.plist
;
4653 if (gcc_exec_prefix
)
4655 do_spec_1 ("-iprefix", 1, NULL
);
4656 /* Make this a separate argument. */
4657 do_spec_1 (" ", 0, NULL
);
4658 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4659 do_spec_1 (" ", 0, NULL
);
4662 for (; pl
; pl
= pl
->next
)
4664 do_spec_1 ("-isystem", 1, NULL
);
4665 /* Make this a separate argument. */
4666 do_spec_1 (" ", 0, NULL
);
4667 do_spec_1 (pl
->prefix
, 1, NULL
);
4668 do_spec_1 (" ", 0, NULL
);
4675 int max
= n_infiles
;
4676 max
+= lang_specific_extra_outfiles
;
4678 for (i
= 0; i
< max
; i
++)
4680 store_arg (outfiles
[i
], 0, 0);
4685 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4690 this_is_library_file
= 1;
4694 this_is_output_file
= 1;
4699 int cur_index
= argbuf_index
;
4700 /* Handle the {...} following the %W. */
4703 p
= handle_braces (p
+ 1);
4706 /* If any args were output, mark the last one for deletion
4708 if (argbuf_index
!= cur_index
)
4709 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4713 /* %x{OPTION} records OPTION for %X to output. */
4719 /* Skip past the option value and make a copy. */
4724 string
= save_string (p1
+ 1, p
- p1
- 2);
4726 /* See if we already recorded this option. */
4727 for (i
= 0; i
< n_linker_options
; i
++)
4728 if (! strcmp (string
, linker_options
[i
]))
4734 /* This option is new; add it. */
4735 add_linker_option (string
, strlen (string
));
4739 /* Dump out the options accumulated previously using %x. */
4741 for (i
= 0; i
< n_linker_options
; i
++)
4743 do_spec_1 (linker_options
[i
], 1, NULL
);
4744 /* Make each accumulated option a separate argument. */
4745 do_spec_1 (" ", 0, NULL
);
4749 /* Dump out the options accumulated previously using -Wa,. */
4751 for (i
= 0; i
< n_assembler_options
; i
++)
4753 do_spec_1 (assembler_options
[i
], 1, NULL
);
4754 /* Make each accumulated option a separate argument. */
4755 do_spec_1 (" ", 0, NULL
);
4759 /* Dump out the options accumulated previously using -Wp,. */
4761 for (i
= 0; i
< n_preprocessor_options
; i
++)
4763 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4764 /* Make each accumulated option a separate argument. */
4765 do_spec_1 (" ", 0, NULL
);
4769 /* Here are digits and numbers that just process
4770 a certain constant string as a spec. */
4773 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4779 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4785 value
= do_spec_1 (asm_spec
, 0, NULL
);
4791 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4798 const char *const spec
4799 = (input_file_compiler
->cpp_spec
4800 ? input_file_compiler
->cpp_spec
4802 value
= do_spec_1 (spec
, 0, NULL
);
4809 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4815 value
= do_spec_1 (link_spec
, 0, NULL
);
4821 value
= do_spec_1 (lib_spec
, 0, NULL
);
4827 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4833 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4839 len
= strlen (multilib_dir
);
4840 obstack_blank (&obstack
, len
+ 1);
4841 p
= obstack_next_free (&obstack
) - (len
+ 1);
4844 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4845 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4851 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4855 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4859 if (! strncmp (y
, "-D", 2))
4860 /* Copy the whole option. */
4861 while (*y
&& *y
!= ' ' && *y
!= '\t')
4863 else if (*y
== ' ' || *y
== '\t')
4864 /* Copy whitespace to the result. */
4866 /* Don't copy other options. */
4873 value
= do_spec_1 (buf
, 0, NULL
);
4881 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4885 /* Copy all of CPP_PREDEFINES into BUF,
4886 but force them all into the reserved name space if they
4887 aren't already there. The reserved name space is all
4888 identifiers beginning with two underscores or with one
4889 underscore and a capital letter. We do the forcing by
4890 adding up to two underscores to the beginning and end
4891 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4896 if (! strncmp (y
, "-D", 2))
4905 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4907 /* Stick __ at front of macro name. */
4911 /* Arrange to stick __ at the end as well. */
4915 /* Copy the macro name. */
4916 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4929 /* Copy the value given, if any. */
4930 while (*y
&& *y
!= ' ' && *y
!= '\t')
4933 else if (*y
== ' ' || *y
== '\t')
4934 /* Copy whitespace to the result. */
4936 /* Don't copy -A options */
4942 /* Copy all of CPP_PREDEFINES into BUF,
4943 but put __ after every -D. */
4947 if (! strncmp (y
, "-D", 2))
4953 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4955 /* Stick -D__ at front of macro name. */
4962 /* Copy the macro name. */
4963 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4966 /* Copy the value given, if any. */
4967 while (*y
&& *y
!= ' ' && *y
!= '\t')
4972 /* Do not copy this macro - we have just done it before */
4973 while (*y
&& *y
!= ' ' && *y
!= '\t')
4977 else if (*y
== ' ' || *y
== '\t')
4978 /* Copy whitespace to the result. */
4980 /* Don't copy -A options. */
4986 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4990 if (! strncmp (y
, "-A", 2))
4991 /* Copy the whole option. */
4992 while (*y
&& *y
!= ' ' && *y
!= '\t')
4994 else if (*y
== ' ' || *y
== '\t')
4995 /* Copy whitespace to the result. */
4997 /* Don't copy other options. */
5004 value
= do_spec_1 (buf
, 0, NULL
);
5011 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5016 /* Here we define characters other than letters and digits. */
5019 p
= handle_braces (p
);
5025 obstack_1grow (&obstack
, '%');
5032 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5034 suffix_subst
= save_string (p
- 1, len
+ 1);
5040 if (soft_matched_part
)
5042 do_spec_1 (soft_matched_part
, 1, NULL
);
5043 do_spec_1 (" ", 0, NULL
);
5046 /* Catch the case where a spec string contains something like
5047 '%{foo:%*}'. ie there is no * in the pattern on the left
5048 hand side of the :. */
5049 error ("spec failure: '%%*' has not been initialized by pattern match");
5052 /* Process a string found as the value of a spec given by name.
5053 This feature allows individual machine descriptions
5054 to add and use their own specs.
5055 %[...] modifies -D options the way %P does;
5056 %(...) uses the spec unmodified. */
5058 error ("warning: use of obsolete %%[ operator in specs");
5061 const char *name
= p
;
5062 struct spec_list
*sl
;
5065 /* The string after the S/P is the name of a spec that is to be
5067 while (*p
&& *p
!= ')' && *p
!= ']')
5070 /* See if it's in the list. */
5071 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5072 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5074 name
= *(sl
->ptr_spec
);
5076 notice ("Processing spec %c%s%c, which is '%s'\n",
5077 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5086 value
= do_spec_1 (name
, 0, NULL
);
5092 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5094 const char *y
= name
;
5097 /* Copy all of NAME into BUF, but put __ after
5098 every -D and at the end of each arg. */
5101 if (! strncmp (y
, "-D", 2))
5112 && (*y
== ' ' || *y
== '\t' || *y
== '='
5113 || *y
== '}' || *y
== 0))
5126 value
= do_spec_1 (buf
, 0, NULL
);
5132 /* Discard the closing paren or bracket. */
5140 int c1
= *p
++; /* Select first or second version number. */
5141 const char *v
= compiler_version
;
5143 static const char zeroc
= '0';
5145 /* The format of the version string is
5146 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5148 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5149 while (! ISDIGIT (*v
))
5151 if (v
> compiler_version
&& v
[-1] != '-')
5154 /* If desired, advance to second version number. */
5157 /* Set V after the first period. */
5158 while (ISDIGIT (*v
))
5165 /* If desired, advance to third version number.
5166 But don't complain if it's not present */
5169 /* Set V after the second period. */
5170 while (ISDIGIT (*v
))
5172 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5178 /* Set Q at the next period or at the end. */
5180 while (ISDIGIT (*q
))
5182 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5186 /* Put that part into the command. */
5187 obstack_grow (&obstack
, v
, q
- v
);
5189 /* Default to "0" */
5190 obstack_grow (&obstack
, &zeroc
, 1);
5196 if (input_from_pipe
)
5197 do_spec_1 ("-", 0, NULL
);
5201 error ("spec failure: unrecognized spec option '%c'", c
);
5207 /* Backslash: treat next character as ordinary. */
5212 /* Ordinary character: put it into the current argument. */
5213 obstack_1grow (&obstack
, c
);
5217 /* End of string. */
5221 /* Return 0 if we call do_spec_1 and that returns -1. */
5227 const char *filter
, *body
= NULL
, *endbody
= NULL
;
5229 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5232 int include_blanks
= 1;
5233 int elide_switch
= 0;
5238 /* A '^' after the open-brace means to not give blanks before args. */
5245 /* A `|' after the open-brace means,
5246 if the test fails, output a single minus sign rather than nothing.
5247 This is used in %{|!pipe:...}. */
5254 /* A `<' after the open-brace means that the switch should be
5255 removed from the command-line. */
5261 negate
= suffix
= 0;
5264 /* A `!' after the open-brace negates the condition:
5265 succeed if the specified switch is not present. */
5269 /* A `.' after the open-brace means test against the current suffix. */
5278 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
5280 /* It doesn't make sense to mix elision with other flags. We
5281 could fatal() here, but the standard seems to be to abort. */
5287 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5290 if (*p
== '|' && (pipe_p
|| ordered
))
5295 if (*p
!= '}' && *p
!= '&')
5311 fatal ("mismatched braces in specs");
5317 body
= p
, endbody
= p
+ 1;
5322 int found
= (input_suffix
!= 0
5323 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5324 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5330 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5333 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5335 /* Substitute all matching switches as separate args. */
5338 for (i
= 0; i
< n_switches
; i
++)
5339 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5340 && check_live_switch (i
, p
- 1 - filter
))
5344 switches
[i
].live_cond
= SWITCH_IGNORE
;
5345 switches
[i
].validated
= 1;
5348 ordered
= 1, switches
[i
].ordering
= 1;
5353 /* Test for presence of the specified switch. */
5357 /* If name specified ends in *, as in {x*:...},
5358 check for %* and handle that case. */
5359 if (p
[-1] == '*' && !negate
)
5362 const char *r
= body
;
5364 /* First see whether we have %*. */
5368 if (*r
== '%' && r
[1] == '*')
5372 /* If we do, handle that case. */
5375 /* Substitute all matching switches as separate args.
5376 But do this by substituting for %*
5377 in the text that follows the colon. */
5379 unsigned hard_match_len
= p
- filter
- 1;
5380 char *string
= save_string (body
, endbody
- body
- 1);
5382 for (i
= 0; i
< n_switches
; i
++)
5383 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5384 && check_live_switch (i
, -1))
5386 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5387 /* Pass any arguments this switch has. */
5388 give_switch (i
, 1, 1);
5389 suffix_subst
= NULL
;
5392 /* We didn't match. Try again. */
5399 /* If name specified ends in *, as in {x*:...},
5400 check for presence of any switch name starting with x. */
5403 for (i
= 0; i
< n_switches
; i
++)
5405 unsigned hard_match_len
= p
- filter
- 1;
5407 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5408 && check_live_switch (i
, hard_match_len
))
5415 /* Otherwise, check for presence of exact name specified. */
5418 for (i
= 0; i
< n_switches
; i
++)
5420 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5421 && switches
[i
].part1
[p
- filter
] == 0
5422 && check_live_switch (i
, -1))
5430 /* If it is as desired (present for %{s...}, absent for %{!s...})
5431 then substitute either the switch or the specified
5432 conditional text. */
5433 if (present
!= negate
)
5437 switches
[i
].live_cond
= SWITCH_IGNORE
;
5438 switches
[i
].validated
= 1;
5440 else if (ordered
|| *p
== '&')
5441 ordered
= 1, switches
[i
].ordering
= 1;
5443 give_switch (i
, 0, include_blanks
);
5445 /* Even if many alternatives are matched, only output once. */
5450 /* Here if a %{|...} conditional fails: output a minus sign,
5451 which means "standard output" or "standard input". */
5452 do_spec_1 ("-", 0, NULL
);
5457 /* We didn't match; try again. */
5464 goto next_ampersand
;
5470 /* Doing this set of switches later preserves their command-line
5471 ordering. This is needed for e.g. -U, -D and -A. */
5472 for (i
= 0; i
< n_switches
; i
++)
5473 if (switches
[i
].ordering
== 1)
5475 switches
[i
].ordering
= 0;
5476 give_switch (i
, 0, include_blanks
);
5479 /* Process the spec just once, regardless of match count. */
5482 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5490 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5491 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5492 spec, or -1 if either exact match or %* is used.
5494 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5495 whose value does not begin with "no-" is obsoleted by the same value
5496 with the "no-", similarly for a switch with the "no-" prefix. */
5499 check_live_switch (switchnum
, prefix_length
)
5503 const char *name
= switches
[switchnum
].part1
;
5506 /* In the common case of {<at-most-one-letter>*}, a negating
5507 switch would always match, so ignore that case. We will just
5508 send the conflicting switches to the compiler phase. */
5509 if (prefix_length
>= 0 && prefix_length
<= 1)
5512 /* If we already processed this switch and determined if it was
5513 live or not, return our past determination. */
5514 if (switches
[switchnum
].live_cond
!= 0)
5515 return switches
[switchnum
].live_cond
> 0;
5517 /* Now search for duplicate in a manner that depends on the name. */
5521 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5522 if (switches
[i
].part1
[0] == 'O')
5524 switches
[switchnum
].validated
= 1;
5525 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5530 case 'W': case 'f': case 'm':
5531 if (! strncmp (name
+ 1, "no-", 3))
5533 /* We have Xno-YYY, search for XYYY. */
5534 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5535 if (switches
[i
].part1
[0] == name
[0]
5536 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5538 switches
[switchnum
].validated
= 1;
5539 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5545 /* We have XYYY, search for Xno-YYY. */
5546 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5547 if (switches
[i
].part1
[0] == name
[0]
5548 && switches
[i
].part1
[1] == 'n'
5549 && switches
[i
].part1
[2] == 'o'
5550 && switches
[i
].part1
[3] == '-'
5551 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5553 switches
[switchnum
].validated
= 1;
5554 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5561 /* Otherwise the switch is live. */
5562 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5566 /* Pass a switch to the current accumulating command
5567 in the same form that we received it.
5568 SWITCHNUM identifies the switch; it is an index into
5569 the vector of switches gcc received, which is `switches'.
5570 This cannot fail since it never finishes a command line.
5572 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5574 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5578 give_switch (switchnum
, omit_first_word
, include_blanks
)
5580 int omit_first_word
;
5583 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5586 if (!omit_first_word
)
5588 do_spec_1 ("-", 0, NULL
);
5589 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5592 if (switches
[switchnum
].args
!= 0)
5595 for (p
= switches
[switchnum
].args
; *p
; p
++)
5597 const char *arg
= *p
;
5600 do_spec_1 (" ", 0, NULL
);
5603 unsigned length
= strlen (arg
);
5606 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5607 if (arg
[length
] == '.')
5609 ((char *)arg
)[length
] = 0;
5613 do_spec_1 (arg
, 1, NULL
);
5615 ((char *)arg
)[length
] = '.';
5616 do_spec_1 (suffix_subst
, 1, NULL
);
5619 do_spec_1 (arg
, 1, NULL
);
5623 do_spec_1 (" ", 0, NULL
);
5624 switches
[switchnum
].validated
= 1;
5627 /* Search for a file named NAME trying various prefixes including the
5628 user's -B prefix and some standard ones.
5629 Return the absolute file name found. If nothing is found, return NAME. */
5637 /* Try multilib_dir if it is defined. */
5638 if (multilib_dir
!= NULL
)
5640 const char *const try = ACONCAT ((multilib_dir
, dir_separator_str
, name
, NULL
));
5642 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5644 /* If we don't find it in the multi library dir, then fall
5645 through and look for it in the normal places. */
5646 if (newname
!= NULL
)
5650 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5651 return newname
? newname
: name
;
5654 /* Determine whether a directory exists. If LINKER, return 0 for
5655 certain fixed names not needed by the linker. If not LINKER, it is
5656 only important to return 0 if the host machine has a small ARG_MAX
5660 is_directory (path1
, path2
, linker
)
5665 int len1
= strlen (path1
);
5666 int len2
= strlen (path2
);
5667 char *path
= (char *) alloca (3 + len1
+ len2
);
5671 #ifndef SMALL_ARG_MAX
5676 /* Construct the path from the two parts. Ensure the string ends with "/.".
5677 The resulting path will be a directory even if the given path is a
5679 memcpy (path
, path1
, len1
);
5680 memcpy (path
+ len1
, path2
, len2
);
5681 cp
= path
+ len1
+ len2
;
5682 if (!IS_DIR_SEPARATOR (cp
[-1]))
5683 *cp
++ = DIR_SEPARATOR
;
5687 /* Exclude directories that the linker is known to search. */
5690 && strcmp (path
, concat (dir_separator_str
, "lib",
5691 dir_separator_str
, ".", NULL
)) == 0)
5693 && strcmp (path
, concat (dir_separator_str
, "usr",
5694 dir_separator_str
, "lib",
5695 dir_separator_str
, ".", NULL
)) == 0)))
5698 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5701 /* Set up the various global variables to indicate that we're processing
5702 the input file named FILENAME. */
5705 set_input (filename
)
5706 const char *filename
;
5710 input_filename
= filename
;
5711 input_filename_length
= strlen (input_filename
);
5713 input_basename
= input_filename
;
5714 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5715 /* Skip drive name so 'x:foo' is handled properly. */
5716 if (input_basename
[1] == ':')
5717 input_basename
+= 2;
5719 for (p
= input_basename
; *p
; p
++)
5720 if (IS_DIR_SEPARATOR (*p
))
5721 input_basename
= p
+ 1;
5723 /* Find a suffix starting with the last period,
5724 and set basename_length to exclude that suffix. */
5725 basename_length
= strlen (input_basename
);
5726 suffixed_basename_length
= basename_length
;
5727 p
= input_basename
+ basename_length
;
5728 while (p
!= input_basename
&& *p
!= '.')
5730 if (*p
== '.' && p
!= input_basename
)
5732 basename_length
= p
- input_basename
;
5733 input_suffix
= p
+ 1;
5738 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5739 we will need to do a stat on the input_filename. The
5740 INPUT_STAT_SET signals that the stat is needed. */
5744 /* On fatal signals, delete all the temporary files. */
5747 fatal_error (signum
)
5750 signal (signum
, SIG_DFL
);
5751 delete_failure_queue ();
5752 delete_temp_files ();
5753 /* Get the same signal again, this time not handled,
5754 so its normal effect occurs. */
5755 kill (getpid (), signum
);
5758 extern int main
PARAMS ((int, const char *const *));
5763 const char *const *argv
;
5767 int linker_was_run
= 0;
5768 char *explicit_link_files
;
5771 struct user_specs
*uptr
;
5773 p
= argv
[0] + strlen (argv
[0]);
5774 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5778 xmalloc_set_program_name (programname
);
5780 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5781 /* Perform host dependent initialization when needed. */
5782 GCC_DRIVER_HOST_INITIALIZATION
;
5785 gcc_init_libintl ();
5787 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5788 signal (SIGINT
, fatal_error
);
5790 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5791 signal (SIGHUP
, fatal_error
);
5793 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5794 signal (SIGTERM
, fatal_error
);
5796 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5797 signal (SIGPIPE
, fatal_error
);
5800 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5801 receive the signal. A different setting is inheritable */
5802 signal (SIGCHLD
, SIG_DFL
);
5806 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5808 obstack_init (&obstack
);
5810 /* Build multilib_select, et. al from the separate lines that make up each
5811 multilib selection. */
5813 const char *const *q
= multilib_raw
;
5816 obstack_init (&multilib_obstack
);
5817 while ((p
= *q
++) != (char *) 0)
5818 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5820 obstack_1grow (&multilib_obstack
, 0);
5821 multilib_select
= obstack_finish (&multilib_obstack
);
5823 q
= multilib_matches_raw
;
5824 while ((p
= *q
++) != (char *) 0)
5825 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5827 obstack_1grow (&multilib_obstack
, 0);
5828 multilib_matches
= obstack_finish (&multilib_obstack
);
5830 q
= multilib_exclusions_raw
;
5831 while ((p
= *q
++) != (char *) 0)
5832 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5834 obstack_1grow (&multilib_obstack
, 0);
5835 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5838 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5841 obstack_1grow (&multilib_obstack
, ' ');
5842 obstack_grow (&multilib_obstack
,
5843 multilib_defaults_raw
[i
],
5844 strlen (multilib_defaults_raw
[i
]));
5848 obstack_1grow (&multilib_obstack
, 0);
5849 multilib_defaults
= obstack_finish (&multilib_obstack
);
5852 /* Set up to remember the pathname of gcc and any options
5853 needed for collect. We use argv[0] instead of programname because
5854 we need the complete pathname. */
5855 obstack_init (&collect_obstack
);
5856 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5857 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5858 putenv (obstack_finish (&collect_obstack
));
5860 #ifdef INIT_ENVIRONMENT
5861 /* Set up any other necessary machine specific environment variables. */
5862 putenv (INIT_ENVIRONMENT
);
5865 /* Make a table of what switches there are (switches, n_switches).
5866 Make a table of specified input files (infiles, n_infiles).
5867 Decode switches that are handled locally. */
5869 process_command (argc
, argv
);
5871 /* Initialize the vector of specs to just the default.
5872 This means one element containing 0s, as a terminator. */
5874 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5875 memcpy ((char *) compilers
, (char *) default_compilers
,
5876 sizeof default_compilers
);
5877 n_compilers
= n_default_compilers
;
5879 /* Read specs from a file if there is one. */
5881 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5882 spec_version
, dir_separator_str
, NULL
);
5883 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5885 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5886 /* Read the specs file unless it is a default one. */
5887 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5888 read_specs (specs_file
, TRUE
);
5892 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5893 for any override of as, ld and libraries. */
5894 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5895 + strlen (just_machine_suffix
)
5896 + sizeof ("specs"));
5898 strcpy (specs_file
, standard_exec_prefix
);
5899 strcat (specs_file
, just_machine_suffix
);
5900 strcat (specs_file
, "specs");
5901 if (access (specs_file
, R_OK
) == 0)
5902 read_specs (specs_file
, TRUE
);
5904 /* If not cross-compiling, look for startfiles in the standard places.
5905 Similarly, don't add the standard prefixes if startfile handling
5906 will be under control of startfile_prefix_spec. */
5907 if (*cross_compile
== '0' && *startfile_prefix_spec
== 0)
5909 if (*md_exec_prefix
)
5911 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5912 PREFIX_PRIORITY_LAST
, 0, NULL
);
5913 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5914 PREFIX_PRIORITY_LAST
, 0, NULL
);
5917 if (*md_startfile_prefix
)
5918 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5919 PREFIX_PRIORITY_LAST
, 0, NULL
);
5921 if (*md_startfile_prefix_1
)
5922 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5923 PREFIX_PRIORITY_LAST
, 0, NULL
);
5925 /* If standard_startfile_prefix is relative, base it on
5926 standard_exec_prefix. This lets us move the installed tree
5927 as a unit. If GCC_EXEC_PREFIX is defined, base
5928 standard_startfile_prefix on that as well. */
5929 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5930 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5931 PREFIX_PRIORITY_LAST
, 0, NULL
);
5934 if (gcc_exec_prefix
)
5935 add_prefix (&startfile_prefixes
,
5936 concat (gcc_exec_prefix
, machine_suffix
,
5937 standard_startfile_prefix
, NULL
),
5938 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5939 add_prefix (&startfile_prefixes
,
5940 concat (standard_exec_prefix
,
5942 standard_startfile_prefix
, NULL
),
5943 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5946 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5947 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5948 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5949 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5950 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5951 add_prefix (&startfile_prefixes
, "./", NULL
,
5952 PREFIX_PRIORITY_LAST
, 1, NULL
);
5957 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5959 add_prefix (&startfile_prefixes
,
5960 concat (gcc_exec_prefix
, machine_suffix
,
5961 standard_startfile_prefix
, NULL
),
5962 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5965 if (*startfile_prefix_spec
!= 0
5966 && do_spec_2 (startfile_prefix_spec
) == 0
5967 && do_spec_1 (" ", 0, NULL
) == 0)
5970 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
5971 add_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
5972 PREFIX_PRIORITY_LAST
, 0, NULL
);
5975 /* Process any user specified specs in the order given on the command
5977 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5979 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5980 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5983 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5984 if (gcc_exec_prefix
)
5985 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
5986 spec_version
, dir_separator_str
, NULL
);
5988 /* Now we have the specs.
5989 Set the `valid' bits for switches that match anything in any spec. */
5991 validate_all_switches ();
5993 /* Now that we have the switches and the specs, set
5994 the subdirectory based on the options. */
5995 set_multilib_dir ();
5997 /* Warn about any switches that no pass was interested in. */
5999 for (i
= 0; (int) i
< n_switches
; i
++)
6000 if (! switches
[i
].validated
)
6001 error ("unrecognized option `-%s'", switches
[i
].part1
);
6003 /* Obey some of the options. */
6005 if (print_search_dirs
)
6007 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6008 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6009 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6013 if (print_file_name
)
6015 printf ("%s\n", find_file (print_file_name
));
6019 if (print_prog_name
)
6021 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
6022 printf ("%s\n", (newname
? newname
: print_prog_name
));
6026 if (print_multi_lib
)
6028 print_multilib_info ();
6032 if (print_multi_directory
)
6034 if (multilib_dir
== NULL
)
6037 printf ("%s\n", multilib_dir
);
6041 if (target_help_flag
)
6043 /* Print if any target specific options. */
6045 /* We do not exit here. Instead we have created a fake input file
6046 called 'target-dummy' which needs to be compiled, and we pass this
6047 on to the various sub-processes, along with the --target-help
6051 if (print_help_list
)
6057 printf (_("\nFor bug reporting instructions, please see:\n"));
6058 printf ("%s.\n", GCCBUGURL
);
6063 /* We do not exit here. Instead we have created a fake input file
6064 called 'help-dummy' which needs to be compiled, and we pass this
6065 on the various sub-processes, along with the --help switch. */
6073 notice ("Configured with: %s\n", configuration_arguments
);
6075 #ifdef THREAD_MODEL_SPEC
6076 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6077 but there's no point in doing all this processing just to get
6078 thread_model back. */
6079 obstack_init (&obstack
);
6080 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6081 obstack_1grow (&obstack
, '\0');
6082 thrmod
= obstack_finish (&obstack
);
6084 thrmod
= thread_model
;
6087 notice ("Thread model: %s\n", thrmod
);
6089 /* compiler_version is truncated at the first space when initialized
6090 from version string, so truncate version_string at the first space
6091 before comparing. */
6092 for (n
= 0; version_string
[n
]; n
++)
6093 if (version_string
[n
] == ' ')
6096 if (! strncmp (version_string
, compiler_version
, n
)
6097 && compiler_version
[n
] == 0)
6098 notice ("gcc version %s\n", version_string
);
6100 notice ("gcc driver version %s executing gcc version %s\n",
6101 version_string
, compiler_version
);
6107 if (n_infiles
== added_libraries
)
6108 fatal ("no input files");
6110 /* Make a place to record the compiler output file names
6111 that correspond to the input files. */
6114 i
+= lang_specific_extra_outfiles
;
6115 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6117 /* Record which files were specified explicitly as link input. */
6119 explicit_link_files
= xcalloc (1, n_infiles
);
6121 for (i
= 0; (int) i
< n_infiles
; i
++)
6123 int this_file_error
= 0;
6125 /* Tell do_spec what to substitute for %i. */
6127 input_file_number
= i
;
6128 set_input (infiles
[i
].name
);
6130 /* Use the same thing in %o, unless cp->spec says otherwise. */
6132 outfiles
[i
] = input_filename
;
6134 /* Figure out which compiler from the file's suffix. */
6137 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6138 infiles
[i
].language
);
6140 if (input_file_compiler
)
6142 /* Ok, we found an applicable compiler. Run its spec. */
6144 if (input_file_compiler
->spec
[0] == '#')
6146 error ("%s: %s compiler not installed on this system",
6147 input_filename
, &input_file_compiler
->spec
[1]);
6148 this_file_error
= 1;
6152 value
= do_spec (input_file_compiler
->spec
);
6154 this_file_error
= 1;
6158 /* If this file's name does not contain a recognized suffix,
6159 record it as explicit linker input. */
6162 explicit_link_files
[i
] = 1;
6164 /* Clear the delete-on-failure queue, deleting the files in it
6165 if this compilation failed. */
6167 if (this_file_error
)
6169 delete_failure_queue ();
6172 /* If this compilation succeeded, don't delete those files later. */
6173 clear_failure_queue ();
6176 /* Reset the output file name to the first input file name, for use
6177 with %b in LINK_SPEC on a target that prefers not to emit a.out
6180 set_input (infiles
[0].name
);
6182 if (error_count
== 0)
6184 /* Make sure INPUT_FILE_NUMBER points to first available open
6186 input_file_number
= n_infiles
;
6187 if (lang_specific_pre_link ())
6191 /* Run ld to link all the compiler output files. */
6193 if (error_count
== 0)
6195 int tmp
= execution_count
;
6197 /* We'll use ld if we can't find collect2. */
6198 if (! strcmp (linker_name_spec
, "collect2"))
6200 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
6202 linker_name_spec
= "ld";
6204 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6206 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6207 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6209 value
= do_spec (link_command_spec
);
6212 linker_was_run
= (tmp
!= execution_count
);
6215 /* If options said don't run linker,
6216 complain about input files to be given to the linker. */
6218 if (! linker_was_run
&& error_count
== 0)
6219 for (i
= 0; (int) i
< n_infiles
; i
++)
6220 if (explicit_link_files
[i
])
6221 error ("%s: linker input file unused because linking not done",
6224 /* Delete some or all of the temporary files we made. */
6227 delete_failure_queue ();
6228 delete_temp_files ();
6230 if (print_help_list
)
6232 printf (("\nFor bug reporting instructions, please see:\n"));
6233 printf ("%s\n", GCCBUGURL
);
6236 return (signal_count
!= 0 ? 2
6237 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6241 /* Find the proper compilation spec for the file name NAME,
6242 whose length is LENGTH. LANGUAGE is the specified language,
6243 or 0 if this file is to be passed to the linker. */
6245 static struct compiler
*
6246 lookup_compiler (name
, length
, language
)
6249 const char *language
;
6251 struct compiler
*cp
;
6253 /* If this was specified by the user to be a linker input, indicate that. */
6254 if (language
!= 0 && language
[0] == '*')
6257 /* Otherwise, look for the language, if one is spec'd. */
6260 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6261 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6264 error ("language %s not recognized", language
);
6268 /* Look for a suffix. */
6269 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6271 if (/* The suffix `-' matches only the file name `-'. */
6272 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6273 || (strlen (cp
->suffix
) < length
6274 /* See if the suffix matches the end of NAME. */
6275 && !strcmp (cp
->suffix
,
6276 name
+ length
- strlen (cp
->suffix
))
6281 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6282 /* look again, but case-insensitively this time. */
6284 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6286 if (/* The suffix `-' matches only the file name `-'. */
6287 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6288 || (strlen (cp
->suffix
) < length
6289 /* See if the suffix matches the end of NAME. */
6290 && ((!strcmp (cp
->suffix
,
6291 name
+ length
- strlen (cp
->suffix
))
6292 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6293 && !strcasecmp (cp
->suffix
,
6294 name
+ length
- strlen (cp
->suffix
)))
6300 if (cp
>= compilers
)
6302 if (cp
->spec
[0] != '@')
6303 /* A non-alias entry: return it. */
6306 /* An alias entry maps a suffix to a language.
6307 Search for the language; pass 0 for NAME and LENGTH
6308 to avoid infinite recursion if language not found. */
6309 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6315 save_string (s
, len
)
6319 char *result
= xmalloc (len
+ 1);
6321 memcpy (result
, s
, len
);
6327 pfatal_with_name (name
)
6330 perror_with_name (name
);
6331 delete_temp_files ();
6336 perror_with_name (name
)
6339 error ("%s: %s", name
, xstrerror (errno
));
6343 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6344 const char *errmsg_fmt
;
6345 const char *errmsg_arg
;
6349 int save_errno
= errno
;
6351 /* Space for trailing '\0' is in %s. */
6352 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6353 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6359 pfatal_with_name (errmsg_fmt
);
6362 /* Output an error message and exit */
6367 fatal ("internal gcc abort");
6370 /* Output an error message and exit */
6373 fatal
VPARAMS ((const char *msgid
, ...))
6375 VA_OPEN (ap
, msgid
);
6376 VA_FIXEDARG (ap
, const char *, msgid
);
6378 fprintf (stderr
, "%s: ", programname
);
6379 vfprintf (stderr
, _(msgid
), ap
);
6381 fprintf (stderr
, "\n");
6382 delete_temp_files ();
6387 error
VPARAMS ((const char *msgid
, ...))
6389 VA_OPEN (ap
, msgid
);
6390 VA_FIXEDARG (ap
, const char *, msgid
);
6392 fprintf (stderr
, "%s: ", programname
);
6393 vfprintf (stderr
, _(msgid
), ap
);
6396 fprintf (stderr
, "\n");
6400 notice
VPARAMS ((const char *msgid
, ...))
6402 VA_OPEN (ap
, msgid
);
6403 VA_FIXEDARG (ap
, const char *, msgid
);
6405 vfprintf (stderr
, _(msgid
), ap
);
6410 validate_all_switches ()
6412 struct compiler
*comp
;
6415 struct spec_list
*spec
;
6417 for (comp
= compilers
; comp
->spec
; comp
++)
6421 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6422 /* We have a switch spec. */
6423 validate_switches (p
+ 1);
6426 /* Look through the linked list of specs read from the specs file. */
6427 for (spec
= specs
; spec
; spec
= spec
->next
)
6429 p
= *(spec
->ptr_spec
);
6431 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6432 /* We have a switch spec. */
6433 validate_switches (p
+ 1);
6436 p
= link_command_spec
;
6438 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6439 /* We have a switch spec. */
6440 validate_switches (p
+ 1);
6443 /* Look at the switch-name that comes after START
6444 and mark as valid all supplied switches that match it. */
6447 validate_switches (start
)
6450 const char *p
= start
;
6467 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6472 else if (p
[-1] == '*')
6474 /* Mark all matching switches as valid. */
6475 for (i
= 0; i
< n_switches
; i
++)
6476 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6477 switches
[i
].validated
= 1;
6481 /* Mark an exact matching switch as valid. */
6482 for (i
= 0; i
< n_switches
; i
++)
6484 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6485 && switches
[i
].part1
[p
- filter
] == 0)
6486 switches
[i
].validated
= 1;
6490 if (*p
++ == '|' || p
[-1] == '&')
6494 /* Check whether a particular argument was used. The first time we
6495 canonicalize the switches to keep only the ones we care about. */
6505 const char *replace
;
6510 static struct mswitchstr
*mswitches
;
6511 static int n_mswitches
;
6516 struct mswitchstr
*matches
;
6520 /* Break multilib_matches into the component strings of string
6521 and replacement string. */
6522 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6527 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6529 q
= multilib_matches
;
6539 matches
[i
].len
= q
- matches
[i
].str
;
6541 matches
[i
].replace
= ++q
;
6542 while (*q
!= ';' && *q
!= '\0')
6548 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6554 /* Now build a list of the replacement string for switches that we care
6555 about. Make sure we allocate at least one entry. This prevents
6556 xmalloc from calling fatal, and prevents us from re-executing this
6559 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6560 * (n_switches
? n_switches
: 1));
6561 for (i
= 0; i
< n_switches
; i
++)
6563 int xlen
= strlen (switches
[i
].part1
);
6564 for (j
= 0; j
< cnt
; j
++)
6565 if (xlen
== matches
[j
].len
6566 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6568 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6569 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6570 mswitches
[n_mswitches
].replace
= (char *) 0;
6571 mswitches
[n_mswitches
].rep_len
= 0;
6578 for (i
= 0; i
< n_mswitches
; i
++)
6579 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6586 default_arg (p
, len
)
6590 const char *start
, *end
;
6592 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6594 while (*start
== ' ' || *start
== '\t')
6600 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6603 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6613 /* Work out the subdirectory to use based on the options. The format of
6614 multilib_select is a list of elements. Each element is a subdirectory
6615 name followed by a list of options followed by a semicolon. The format
6616 of multilib_exclusions is the same, but without the preceding
6617 directory. First gcc will check the exclusions, if none of the options
6618 beginning with an exclamation point are present, and all of the other
6619 options are present, then we will ignore this completely. Passing
6620 that, gcc will consider each multilib_select in turn using the same
6621 rules for matching the options. If a match is found, that subdirectory
6628 unsigned int this_path_len
;
6629 const char *this_path
, *this_arg
;
6633 p
= multilib_exclusions
;
6636 /* Ignore newlines. */
6643 /* Check the arguments. */
6657 while (*p
!= ' ' && *p
!= ';')
6664 if (*this_arg
!= '!')
6672 ok
= used_arg (this_arg
, p
- this_arg
);
6686 p
= multilib_select
;
6689 /* Ignore newlines. */
6696 /* Get the initial path. */
6704 this_path_len
= p
- this_path
;
6706 /* Check the arguments. */
6721 while (*p
!= ' ' && *p
!= ';')
6728 if (*this_arg
!= '!')
6736 /* If this is a default argument, we can just ignore it.
6737 This is true even if this_arg begins with '!'. Beginning
6738 with '!' does not mean that this argument is necessarily
6739 inappropriate for this library: it merely means that
6740 there is a more specific library which uses this
6741 argument. If this argument is a default, we need not
6742 consider that more specific library. */
6743 if (! default_arg (this_arg
, p
- this_arg
))
6745 ok
= used_arg (this_arg
, p
- this_arg
);
6756 if (this_path_len
!= 1
6757 || this_path
[0] != '.')
6759 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6760 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6761 new_multilib_dir
[this_path_len
] = '\0';
6762 multilib_dir
= new_multilib_dir
;
6771 /* Print out the multiple library subdirectory selection
6772 information. This prints out a series of lines. Each line looks
6773 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6774 required. Only the desired options are printed out, the negative
6775 matches. The options are print without a leading dash. There are
6776 no spaces to make it easy to use the information in the shell.
6777 Each subdirectory is printed only once. This assumes the ordering
6778 generated by the genmultilib script. Also, we leave out ones that match
6782 print_multilib_info ()
6784 const char *p
= multilib_select
;
6785 const char *last_path
= 0, *this_path
;
6787 unsigned int last_path_len
= 0;
6792 /* Ignore newlines. */
6799 /* Get the initial path. */
6808 /* Check for matches with the multilib_exclusions. We don't bother
6809 with the '!' in either list. If any of the exclusion rules match
6810 all of its options with the select rule, we skip it. */
6812 const char *e
= multilib_exclusions
;
6813 const char *this_arg
;
6818 /* Ignore newlines. */
6825 /* Check the arguments. */
6842 while (*e
!= ' ' && *e
!= ';')
6853 int len
= e
- this_arg
;
6860 while (*q
!= ' ' && *q
!= ';')
6867 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6868 default_arg (this_arg
, e
- this_arg
))
6898 /* If this is a duplicate, skip it. */
6899 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6900 && ! strncmp (last_path
, this_path
, last_path_len
));
6902 last_path
= this_path
;
6903 last_path_len
= p
- this_path
;
6906 /* If this directory requires any default arguments, we can skip
6907 it. We will already have printed a directory identical to
6908 this one which does not require that default argument. */
6926 while (*q
!= ' ' && *q
!= ';')
6934 && default_arg (arg
, q
- arg
))
6949 for (p1
= last_path
; p1
< p
; p1
++)
6968 use_arg
= *p
!= '!';
6973 while (*p
!= ' ' && *p
!= ';')
6988 /* If there are extra options, print them now. */
6989 if (multilib_extra
&& *multilib_extra
)
6991 int print_at
= TRUE
;
6994 for (q
= multilib_extra
; *q
!= '\0'; q
++)