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 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
97 #undef TARGET_EXECUTABLE_SUFFIX
98 #define TARGET_EXECUTABLE_SUFFIX ""
101 /* By default there is no special suffix for host executables. */
102 #ifdef HOST_EXECUTABLE_SUFFIX
103 #define HAVE_HOST_EXECUTABLE_SUFFIX
105 #define HOST_EXECUTABLE_SUFFIX ""
108 /* By default, the suffix for target object files is ".o". */
109 #ifdef TARGET_OBJECT_SUFFIX
110 #define HAVE_TARGET_OBJECT_SUFFIX
112 #define TARGET_OBJECT_SUFFIX ".o"
116 /* FIXME: the location independence code for VMS is hairier than this,
117 and hasn't been written. */
123 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
125 #define obstack_chunk_alloc xmalloc
126 #define obstack_chunk_free free
128 #ifndef GET_ENV_PATH_LIST
129 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
132 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
133 #ifndef LIBRARY_PATH_ENV
134 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
138 #define kill(p,s) raise(s)
141 /* If a stage of compilation returns an exit status >= 1,
142 compilation of that file ceases. */
144 #define MIN_FATAL_STATUS 1
146 /* Flag set by cppspec.c to 1. */
149 /* Flag saying to pass the greatest exit code returned by a sub-process
150 to the calling program. */
151 static int pass_exit_codes
;
153 /* Definition of string containing the arguments given to configure. */
154 #include "configargs.h"
156 /* Flag saying to print the directories gcc will search through looking for
157 programs, libraries, etc. */
159 static int print_search_dirs
;
161 /* Flag saying to print the full filename of this file
162 as found through our usual search mechanism. */
164 static const char *print_file_name
= NULL
;
166 /* As print_file_name, but search for executable file. */
168 static const char *print_prog_name
= NULL
;
170 /* Flag saying to print the relative path we'd use to
171 find libgcc.a given the current compiler flags. */
173 static int print_multi_directory
;
175 /* Flag saying to print the list of subdirectories and
176 compiler flags used to select them in a standard form. */
178 static int print_multi_lib
;
180 /* Flag saying to print the command line options understood by gcc and its
183 static int print_help_list
;
185 /* Flag indicating whether we should print the command and arguments */
187 static int verbose_flag
;
189 /* Flag indicating whether we should ONLY print the command and
190 arguments (like verbose_flag) without executing the command.
191 Displayed arguments are quoted so that the generated command
192 line is suitable for execution. This is intended for use in
193 shell scripts to capture the driver-generated command line. */
194 static int verbose_only_flag
;
196 /* Flag indicating to print target specific command line options. */
198 static int target_help_flag
;
200 /* Flag indicating whether we should report subprocess execution times
201 (if this is supported by the system - see pexecute.c). */
203 static int report_times
;
205 /* Nonzero means write "temp" files in source directory
206 and use the source file's name in them, and don't delete them. */
208 static int save_temps_flag
;
210 /* The compiler version. */
212 static const char *compiler_version
;
214 /* The target version specified with -V */
216 static const char *spec_version
= DEFAULT_TARGET_VERSION
;
218 /* The target machine specified with -b. */
220 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
222 /* Nonzero if cross-compiling.
223 When -b is used, the value comes from the `specs' file. */
226 static const char *cross_compile
= "1";
228 static const char *cross_compile
= "0";
231 #ifdef MODIFY_TARGET_NAME
233 /* Information on how to alter the target name based on a command-line
234 switch. The only case we support now is simply appending or deleting a
235 string to or from the end of the first part of the configuration name. */
237 const struct modify_target
239 const char *const sw
;
240 const enum add_del
{ADD
, DELETE
} add_del
;
241 const char *const str
;
243 modify_target
[] = MODIFY_TARGET_NAME
;
246 /* The number of errors that have occurred; the link phase will not be
247 run if this is non-zero. */
248 static int error_count
= 0;
250 /* Greatest exit code of sub-processes that has been encountered up to
252 static int greatest_status
= 1;
254 /* This is the obstack which we use to allocate many strings. */
256 static struct obstack obstack
;
258 /* This is the obstack to build an environment variable to pass to
259 collect2 that describes all of the relevant switches of what to
260 pass the compiler in building the list of pointers to constructors
263 static struct obstack collect_obstack
;
265 /* These structs are used to collect resource usage information for
267 #ifdef HAVE_GETRUSAGE
268 static struct rusage rus
, prus
;
271 /* Forward declaration for prototypes. */
274 static void init_spec
PARAMS ((void));
276 static char **split_directories
PARAMS ((const char *, int *));
277 static void free_split_directories
PARAMS ((char **));
278 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
280 static void store_arg
PARAMS ((const char *, int, int));
281 static char *load_specs
PARAMS ((const char *));
282 static void read_specs
PARAMS ((const char *, int));
283 static void set_spec
PARAMS ((const char *, const char *));
284 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
285 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
286 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
287 static int access_check
PARAMS ((const char *, int));
288 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
289 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
290 const char *, int, int, int *));
291 static void translate_options
PARAMS ((int *, const char *const **));
292 static char *skip_whitespace
PARAMS ((char *));
293 static void delete_if_ordinary
PARAMS ((const char *));
294 static void delete_temp_files
PARAMS ((void));
295 static void delete_failure_queue
PARAMS ((void));
296 static void clear_failure_queue
PARAMS ((void));
297 static int check_live_switch
PARAMS ((int, int));
298 static const char *handle_braces
PARAMS ((const char *));
299 static char *save_string
PARAMS ((const char *, int));
300 static void set_collect_gcc_options
PARAMS ((void));
301 static int do_spec_1
PARAMS ((const char *, int, const char *));
302 static const char *find_file
PARAMS ((const char *));
303 static int is_directory
PARAMS ((const char *, const char *, int));
304 static void validate_switches
PARAMS ((const char *));
305 static void validate_all_switches
PARAMS ((void));
306 static void give_switch
PARAMS ((int, int, int));
307 static int used_arg
PARAMS ((const char *, int));
308 static int default_arg
PARAMS ((const char *, int));
309 static void set_multilib_dir
PARAMS ((void));
310 static void print_multilib_info
PARAMS ((void));
311 static void perror_with_name
PARAMS ((const char *));
312 static void pfatal_pexecute
PARAMS ((const char *, const char *))
314 static void notice
PARAMS ((const char *, ...))
316 static void display_help
PARAMS ((void));
317 static void add_preprocessor_option
PARAMS ((const char *, int));
318 static void add_assembler_option
PARAMS ((const char *, int));
319 static void add_linker_option
PARAMS ((const char *, int));
320 static void process_command
PARAMS ((int, const char *const *));
321 static int execute
PARAMS ((void));
322 static void clear_args
PARAMS ((void));
323 static void fatal_error
PARAMS ((int));
324 #ifdef ENABLE_SHARED_LIBGCC
325 static void init_gcc_specs
PARAMS ((struct obstack
*,
326 const char *, const char *,
329 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
330 static const char *convert_filename
PARAMS ((const char *, int, int));
333 /* The Specs Language
335 Specs are strings containing lines, each of which (if not blank)
336 is made up of a program name, and arguments separated by spaces.
337 The program name must be exact and start from root, since no path
338 is searched and it is unreliable to depend on the current working directory.
339 Redirection of input or output is not supported; the subprograms must
340 accept filenames saying what files to read and write.
342 In addition, the specs can contain %-sequences to substitute variable text
343 or for conditional text. Here is a table of all defined %-sequences.
344 Note that spaces are not generated automatically around the results of
345 expanding these sequences; therefore, you can concatenate them together
346 or with constant text in a single argument.
348 %% substitute one % into the program name or argument.
349 %i substitute the name of the input file being processed.
350 %b substitute the basename of the input file being processed.
351 This is the substring up to (and not including) the last period
352 and not including the directory.
353 %B same as %b, but include the file suffix (text after the last period).
355 substitute a file name that has suffix SUFFIX and is chosen
356 once per compilation, and mark the argument a la %d. To reduce
357 exposure to denial-of-service attacks, the file name is now
358 chosen in a way that is hard to predict even when previously
359 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
360 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
361 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
362 had been pre-processed. Previously, %g was simply substituted
363 with a file name chosen once per compilation, without regard
364 to any appended suffix (which was therefore treated just like
365 ordinary text), making such attacks more likely to succeed.
367 like %g, but generates a new temporary file name even if %uSUFFIX
370 substitutes the last file name generated with %uSUFFIX, generating a
371 new one if there is no such last file name. In the absence of any
372 %uSUFFIX, this is just like %gSUFFIX, except they don't share
373 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
374 would involve the generation of two distinct file names, one
375 for each `%g.s' and another for each `%U.s'. Previously, %U was
376 simply substituted with a file name chosen for the previous %u,
377 without regard to any appended suffix.
379 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
380 writable, and if save-temps is off; otherwise, substitute the name
381 of a temporary file, just like %u. This temporary file is not
382 meant for communication between processes, but rather as a junk
385 substitutes .SUFFIX for the suffixes of a matched switch's args when
386 it is subsequently output with %*. SUFFIX is terminated by the next
388 %d marks the argument containing or following the %d as a
389 temporary file name, so that that file will be deleted if CC exits
390 successfully. Unlike %g, this contributes no text to the argument.
391 %w marks the argument containing or following the %w as the
392 "output file" of this compilation. This puts the argument
393 into the sequence of arguments that %o will substitute later.
395 like %{...} but mark last argument supplied within
396 as a file to be deleted on failure.
397 %o substitutes the names of all the output files, with spaces
398 automatically placed around them. You should write spaces
399 around the %o as well or the results are undefined.
400 %o is for use in the specs for running the linker.
401 Input files whose names have no recognized suffix are not compiled
402 at all, but they are included among the output files, so they will
404 %O substitutes the suffix for object files. Note that this is
405 handled specially when it immediately follows %g, %u, or %U
406 (with or without a suffix argument) because of the need for
407 those to form complete file names. The handling is such that
408 %O is treated exactly as if it had already been substituted,
409 except that %g, %u, and %U do not currently support additional
410 SUFFIX characters following %O as they would following, for
412 %p substitutes the standard macro predefinitions for the
413 current target machine. Use this when running cpp.
414 %P like %p, but puts `__' before and after the name of each macro.
415 (Except macros that already have __.)
417 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
418 %s current argument is the name of a library or startup file of some sort.
419 Search for that file in a standard list of directories
420 and substitute the full name found.
421 %eSTR Print STR as an error message. STR is terminated by a newline.
422 Use this when inconsistent options are detected.
423 %nSTR Print STR as an notice. STR is terminated by a newline.
424 %x{OPTION} Accumulate an option for %X.
425 %X Output the accumulated linker options specified by compilations.
426 %Y Output the accumulated assembler options specified by compilations.
427 %Z Output the accumulated preprocessor options specified by compilations.
428 %v1 Substitute the major version number of GCC.
429 (For version 2.5.3, this is 2.)
430 %v2 Substitute the minor version number of GCC.
431 (For version 2.5.3, this is 5.)
432 %v3 Substitute the patch level number of GCC.
433 (For version 2.5.3, this is 3.)
434 %a process ASM_SPEC as a spec.
435 This allows config.h to specify part of the spec for running as.
436 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
437 used here. This can be used to run a post-processor after the
438 assembler has done its job.
439 %D Dump out a -L option for each directory in startfile_prefixes.
440 If multilib_dir is set, extra entries are generated with it affixed.
441 %l process LINK_SPEC as a spec.
442 %L process LIB_SPEC as a spec.
443 %G process LIBGCC_SPEC as a spec.
444 %M output multilib_dir with directory separators replaced with "_";
445 if multilib_dir is not set or is ".", output "".
446 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
447 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
448 %c process SIGNED_CHAR_SPEC as a spec.
449 %C process CPP_SPEC as a spec.
450 %1 process CC1_SPEC as a spec.
451 %2 process CC1PLUS_SPEC as a spec.
452 %| output "-" if the input for the current command is coming from a pipe.
453 %* substitute the variable part of a matched option. (See below.)
454 Note that each comma in the substituted string is replaced by
456 %{S} substitutes the -S switch, if that switch was given to CC.
457 If that switch was not specified, this substitutes nothing.
458 Here S is a metasyntactic variable.
459 %{S*} substitutes all the switches specified to CC whose names start
460 with -S. This is used for -o, -I, etc; switches that take
461 arguments. CC considers `-o foo' as being one switch whose
462 name starts with `o'. %{o*} would substitute this text,
463 including the space; thus, two arguments would be generated.
464 %{^S*} likewise, but don't put a blank between a switch and any args.
465 %{S*&T*} likewise, but preserve order of S and T options (the order
466 of S and T in the spec is not significant). Can be any number
467 of ampersand-separated variables; for each the wild card is
468 optional. Useful for CPP as %{D*&U*&A*}.
469 %{S*:X} substitutes X if one or more switches whose names start with -S are
470 specified to CC. Note that the tail part of the -S option
471 (i.e. the part matched by the `*') will be substituted for each
472 occurrence of %* within X.
473 %{<S} remove all occurrences of -S from the command line.
474 Note - this option is position dependent. % commands in the
475 spec string before this option will see -S, % commands in the
476 spec string after this option will not.
477 %{S:X} substitutes X, but only if the -S switch was given to CC.
478 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
479 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
480 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
481 %{.S:X} substitutes X, but only if processing a file with suffix S.
482 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
483 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
484 combined with ! and . as above binding stronger than the OR.
485 %(Spec) processes a specification defined in a specs file as *Spec:
486 %[Spec] as above, but put __ around -D arguments
488 The conditional text X in a %{S:X} or %{!S:X} construct may contain
489 other nested % constructs or spaces, or even newlines. They are
490 processed as usual, as described above.
492 The -O, -f, -m, and -W switches are handled specifically in these
493 constructs. If another value of -O or the negated form of a -f, -m, or
494 -W switch is found later in the command line, the earlier switch
495 value is ignored, except with {S*} where S is just one letter; this
496 passes all matching options.
498 The character | at the beginning of the predicate text is used to indicate
499 that a command should be piped to the following command, but only if -pipe
502 Note that it is built into CC which switches take arguments and which
503 do not. You might think it would be useful to generalize this to
504 allow each compiler's spec to say which switches take arguments. But
505 this cannot be done in a consistent fashion. CC cannot even decide
506 which input files have been specified without knowing which switches
507 take arguments, and it must know which input files to compile in order
508 to tell which compilers to run.
510 CC also knows implicitly that arguments starting in `-l' are to be
511 treated as compiler output files, and passed to the linker in their
512 proper position among the other output files. */
514 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
516 /* config.h can define ASM_SPEC to provide extra args to the assembler
517 or extra switch-translations. */
522 /* config.h can define ASM_FINAL_SPEC to run a post processor after
523 the assembler has run. */
524 #ifndef ASM_FINAL_SPEC
525 #define ASM_FINAL_SPEC ""
528 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
529 or extra switch-translations. */
534 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
535 or extra switch-translations. */
540 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
541 or extra switch-translations. */
543 #define CC1PLUS_SPEC ""
546 /* config.h can define LINK_SPEC to provide extra args to the linker
547 or extra switch-translations. */
552 /* config.h can define LIB_SPEC to override the default libraries. */
554 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
557 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
560 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
561 /* Have gcc do the search for libgcc.a. */
562 #define LIBGCC_SPEC "libgcc.a%s"
564 #define LIBGCC_SPEC "-lgcc"
568 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
569 #ifndef STARTFILE_SPEC
570 #define STARTFILE_SPEC \
571 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
574 /* config.h can define SWITCHES_NEED_SPACES to control which options
575 require spaces between the option and the argument. */
576 #ifndef SWITCHES_NEED_SPACES
577 #define SWITCHES_NEED_SPACES ""
580 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
582 #define ENDFILE_SPEC ""
585 /* This spec is used for telling cpp whether char is signed or not. */
586 #ifndef SIGNED_CHAR_SPEC
587 /* Use #if rather than ?:
588 because MIPS C compiler rejects like ?: in initializers. */
589 #if DEFAULT_SIGNED_CHAR
590 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
592 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
597 #define LINKER_NAME "collect2"
600 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
602 #ifndef ASM_DEBUG_SPEC
603 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
604 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
605 # define ASM_DEBUG_SPEC \
606 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
607 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
608 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
610 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
611 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
613 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
614 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
618 #ifndef ASM_DEBUG_SPEC
619 # define ASM_DEBUG_SPEC ""
622 /* Here is the spec for running the linker, after compiling all files. */
624 /* -u* was put back because both BSD and SysV seem to support it. */
625 /* %{static:} simply prevents an error message if the target machine
626 doesn't handle -static. */
627 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
628 scripts which exist in user specified directories, or in standard
630 #ifndef LINK_COMMAND_SPEC
631 #define LINK_COMMAND_SPEC "\
632 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
633 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
634 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
635 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
636 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
639 #ifndef LINK_LIBGCC_SPEC
640 # ifdef LINK_LIBGCC_SPECIAL
641 /* Don't generate -L options for startfile prefix list. */
642 # define LINK_LIBGCC_SPEC ""
644 /* Do generate them. */
645 # define LINK_LIBGCC_SPEC "%D"
649 static const char *asm_debug
= ASM_DEBUG_SPEC
;
650 static const char *cpp_spec
= CPP_SPEC
;
651 static const char *cpp_predefines
= CPP_PREDEFINES
;
652 static const char *cc1_spec
= CC1_SPEC
;
653 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
654 static const char *signed_char_spec
= SIGNED_CHAR_SPEC
;
655 static const char *asm_spec
= ASM_SPEC
;
656 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
657 static const char *link_spec
= LINK_SPEC
;
658 static const char *lib_spec
= LIB_SPEC
;
659 static const char *libgcc_spec
= LIBGCC_SPEC
;
660 static const char *endfile_spec
= ENDFILE_SPEC
;
661 static const char *startfile_spec
= STARTFILE_SPEC
;
662 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
663 static const char *linker_name_spec
= LINKER_NAME
;
664 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
665 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
667 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
668 There should be no need to override these in target dependent files,
669 but we need to copy them to the specs file so that newer versions
670 of the GCC driver can correctly drive older tool chains with the
671 appropriate -B options. */
673 static const char *trad_capable_cpp
=
674 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
676 static const char *cpp_options
=
677 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
678 %{std*} %{nostdinc*}\
679 %{C} %{v} %{I*} %{P} %{$} %I\
680 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
681 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
682 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
683 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
684 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
685 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
686 %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
687 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
688 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
689 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
690 %{fshow-column} %{fno-show-column}\
691 %{fleading-underscore} %{fno-leading-underscore}\
692 %{fno-operator-names} %{ftabstop=*} %{remap}\
693 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
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 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
701 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
702 %{Qn:-fno-ident} %{--help:--help}\
703 %{--target-help:--target-help}\
704 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
705 %{fsyntax-only:-o %j} %{-param*}";
707 static const char *asm_options
=
708 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
710 static const char *invoke_as
=
711 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
713 /* Some compilers have limits on line lengths, and the multilib_select
714 and/or multilib_matches strings can be very long, so we build them at
716 static struct obstack multilib_obstack
;
717 static const char *multilib_select
;
718 static const char *multilib_matches
;
719 static const char *multilib_defaults
;
720 static const char *multilib_exclusions
;
721 #include "multilib.h"
723 /* Check whether a particular argument is a default argument. */
725 #ifndef MULTILIB_DEFAULTS
726 #define MULTILIB_DEFAULTS { "" }
729 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
733 struct user_specs
*next
;
734 const char *filename
;
737 static struct user_specs
*user_specs_head
, *user_specs_tail
;
739 /* This defines which switch letters take arguments. */
741 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
742 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
743 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
744 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
745 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
746 || (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 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 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
826 {".java", "#Java", 0}, {".class", "#Java", 0},
827 {".zip", "#Java", 0}, {".jar", "#Java", 0},
828 /* Next come the entries for C. */
831 /* cc1 has an integrated ISO C preprocessor. We should invoke the
832 external preprocessor if -save-temps or -traditional is given. */
833 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
835 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
836 %(cpp_options) %b.i \n\
837 cc1 -fpreprocessed %b.i %(cc1_options)}\
839 %{traditional|ftraditional|traditional-cpp:\
840 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
841 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
842 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
843 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
844 %{!fsyntax-only:%(invoke_as)}}}}", 0},
846 "%{!E:%e-E required when input is from standard input}\
847 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
848 {".h", "@c-header", 0},
850 "%{!E:%ecompilation of header file requested} \
851 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
852 {".i", "@cpp-output", 0},
854 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
855 {".s", "@assembler", 0},
857 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
858 {".S", "@assembler-with-cpp", 0},
859 {"@assembler-with-cpp",
860 "%(trad_capable_cpp) -lang-asm %(cpp_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 int n_default_compilers
871 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
873 /* A vector of options to give to the linker.
874 These options are accumulated by %x,
875 and substituted into the linker command with %X. */
876 static int n_linker_options
;
877 static char **linker_options
;
879 /* A vector of options to give to the assembler.
880 These options are accumulated by -Wa,
881 and substituted into the assembler command with %Y. */
882 static int n_assembler_options
;
883 static char **assembler_options
;
885 /* A vector of options to give to the preprocessor.
886 These options are accumulated by -Wp,
887 and substituted into the preprocessor command with %Z. */
888 static int n_preprocessor_options
;
889 static char **preprocessor_options
;
891 /* Define how to map long options into short ones. */
893 /* This structure describes one mapping. */
896 /* The long option's name. */
897 const char *const name
;
898 /* The equivalent short option. */
899 const char *const equivalent
;
900 /* Argument info. A string of flag chars; NULL equals no options.
901 a => argument required.
902 o => argument optional.
903 j => join argument to equivalent, making one word.
904 * => require other text after NAME as an argument. */
905 const char *const arg_info
;
908 /* This is the table of mappings. Mappings are tried sequentially
909 for each option encountered; the first one that matches, wins. */
911 static const struct option_map option_map
[] =
913 {"--all-warnings", "-Wall", 0},
914 {"--ansi", "-ansi", 0},
915 {"--assemble", "-S", 0},
916 {"--assert", "-A", "a"},
917 {"--classpath", "-fclasspath=", "aj"},
918 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
919 {"--comments", "-C", 0},
920 {"--compile", "-c", 0},
921 {"--debug", "-g", "oj"},
922 {"--define-macro", "-D", "aj"},
923 {"--dependencies", "-M", 0},
924 {"--dump", "-d", "a"},
925 {"--dumpbase", "-dumpbase", "a"},
926 {"--entry", "-e", 0},
927 {"--extra-warnings", "-W", 0},
928 {"--for-assembler", "-Wa", "a"},
929 {"--for-linker", "-Xlinker", "a"},
930 {"--force-link", "-u", "a"},
931 {"--imacros", "-imacros", "a"},
932 {"--include", "-include", "a"},
933 {"--include-barrier", "-I-", 0},
934 {"--include-directory", "-I", "aj"},
935 {"--include-directory-after", "-idirafter", "a"},
936 {"--include-prefix", "-iprefix", "a"},
937 {"--include-with-prefix", "-iwithprefix", "a"},
938 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
939 {"--include-with-prefix-after", "-iwithprefix", "a"},
940 {"--language", "-x", "a"},
941 {"--library-directory", "-L", "a"},
942 {"--machine", "-m", "aj"},
943 {"--machine-", "-m", "*j"},
944 {"--no-line-commands", "-P", 0},
945 {"--no-precompiled-includes", "-noprecomp", 0},
946 {"--no-standard-includes", "-nostdinc", 0},
947 {"--no-standard-libraries", "-nostdlib", 0},
948 {"--no-warnings", "-w", 0},
949 {"--optimize", "-O", "oj"},
950 {"--output", "-o", "a"},
951 {"--output-class-directory", "-foutput-class-dir=", "ja"},
952 {"--param", "--param", "a"},
953 {"--pedantic", "-pedantic", 0},
954 {"--pedantic-errors", "-pedantic-errors", 0},
955 {"--pipe", "-pipe", 0},
956 {"--prefix", "-B", "a"},
957 {"--preprocess", "-E", 0},
958 {"--print-search-dirs", "-print-search-dirs", 0},
959 {"--print-file-name", "-print-file-name=", "aj"},
960 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
961 {"--print-missing-file-dependencies", "-MG", 0},
962 {"--print-multi-lib", "-print-multi-lib", 0},
963 {"--print-multi-directory", "-print-multi-directory", 0},
964 {"--print-prog-name", "-print-prog-name=", "aj"},
965 {"--profile", "-p", 0},
966 {"--profile-blocks", "-a", 0},
967 {"--quiet", "-q", 0},
968 {"--save-temps", "-save-temps", 0},
969 {"--shared", "-shared", 0},
970 {"--silent", "-q", 0},
971 {"--specs", "-specs=", "aj"},
972 {"--static", "-static", 0},
973 {"--std", "-std=", "aj"},
974 {"--symbolic", "-symbolic", 0},
975 {"--target", "-b", "a"},
976 {"--time", "-time", 0},
977 {"--trace-includes", "-H", 0},
978 {"--traditional", "-traditional", 0},
979 {"--traditional-cpp", "-traditional-cpp", 0},
980 {"--trigraphs", "-trigraphs", 0},
981 {"--undefine-macro", "-U", "aj"},
982 {"--use-version", "-V", "a"},
983 {"--user-dependencies", "-MM", 0},
984 {"--verbose", "-v", 0},
985 {"--version", "-dumpversion", 0},
986 {"--warn-", "-W", "*j"},
987 {"--write-dependencies", "-MD", 0},
988 {"--write-user-dependencies", "-MMD", 0},
993 #ifdef TARGET_OPTION_TRANSLATE_TABLE
994 static const struct {
995 const char *const option_found
;
996 const char *const replacements
;
997 } target_option_translations
[] =
999 TARGET_OPTION_TRANSLATE_TABLE
,
1004 /* Translate the options described by *ARGCP and *ARGVP.
1005 Make a new vector and store it back in *ARGVP,
1006 and store its length in *ARGVC. */
1009 translate_options (argcp
, argvp
)
1011 const char *const **argvp
;
1015 const char *const *argv
= *argvp
;
1016 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1018 (const char **) xmalloc (newvsize
);
1022 newv
[newindex
++] = argv
[i
++];
1026 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1030 target_option_translations
[tott_idx
].option_found
;
1033 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1040 for (sp
= target_option_translations
[tott_idx
].replacements
;
1047 newvsize
+= spaces
* sizeof (const char *);
1048 newv
= (const char **) xrealloc (newv
, newvsize
);
1050 sp
= target_option_translations
[tott_idx
].replacements
;
1059 newv
[newindex
++] = np
;
1060 while (*np
!= ' ' && *np
)
1071 if (target_option_translations
[tott_idx
].option_found
)
1075 /* Translate -- options. */
1076 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1079 /* Find a mapping that applies to this option. */
1080 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1082 size_t optlen
= strlen (option_map
[j
].name
);
1083 size_t arglen
= strlen (argv
[i
]);
1084 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1085 const char *arginfo
= option_map
[j
].arg_info
;
1090 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1092 const char *arg
= 0;
1094 if (arglen
< optlen
)
1097 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1098 if (strlen (option_map
[k
].name
) >= arglen
1099 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1101 error ("ambiguous abbreviation %s", argv
[i
]);
1105 if (k
!= ARRAY_SIZE (option_map
))
1109 if (arglen
> optlen
)
1111 /* If the option has an argument, accept that. */
1112 if (argv
[i
][optlen
] == '=')
1113 arg
= argv
[i
] + optlen
+ 1;
1115 /* If this mapping requires extra text at end of name,
1116 accept that as "argument". */
1117 else if (strchr (arginfo
, '*') != 0)
1118 arg
= argv
[i
] + optlen
;
1120 /* Otherwise, extra text at end means mismatch.
1121 Try other mappings. */
1126 else if (strchr (arginfo
, '*') != 0)
1128 error ("incomplete `%s' option", option_map
[j
].name
);
1132 /* Handle arguments. */
1133 if (strchr (arginfo
, 'a') != 0)
1139 error ("missing argument to `%s' option",
1140 option_map
[j
].name
);
1147 else if (strchr (arginfo
, '*') != 0)
1149 else if (strchr (arginfo
, 'o') == 0)
1152 error ("extraneous argument to `%s' option",
1153 option_map
[j
].name
);
1157 /* Store the translation as one argv elt or as two. */
1158 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1159 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1163 newv
[newindex
++] = option_map
[j
].equivalent
;
1164 newv
[newindex
++] = arg
;
1167 newv
[newindex
++] = option_map
[j
].equivalent
;
1175 /* Handle old-fashioned options--just copy them through,
1176 with their arguments. */
1177 else if (argv
[i
][0] == '-')
1179 const char *p
= argv
[i
] + 1;
1183 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1184 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1185 else if (WORD_SWITCH_TAKES_ARG (p
))
1186 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1187 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1190 else if (! strcmp (p
, "Xlinker"))
1193 /* Watch out for an option at the end of the command line that
1194 is missing arguments, and avoid skipping past the end of the
1196 if (nskip
+ i
> argc
)
1201 newv
[newindex
++] = argv
[i
++];
1206 /* Ordinary operands, or +e options. */
1207 newv
[newindex
++] = argv
[i
++];
1222 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1223 be considered whitespace. */
1224 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1226 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1240 /* Structures to keep track of prefixes to try when looking for files. */
1244 const char *prefix
; /* String to prepend to the path. */
1245 struct prefix_list
*next
; /* Next in linked list. */
1246 int require_machine_suffix
; /* Don't use without machine_suffix. */
1247 /* 2 means try both machine_suffix and just_machine_suffix. */
1248 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1249 int priority
; /* Sort key - priority within list */
1254 struct prefix_list
*plist
; /* List of prefixes to try */
1255 int max_len
; /* Max length of a prefix in PLIST */
1256 const char *name
; /* Name of this list (used in config stuff) */
1259 /* List of prefixes to try when looking for executables. */
1261 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1263 /* List of prefixes to try when looking for startup (crt0) files. */
1265 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1267 /* List of prefixes to try when looking for include files. */
1269 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1271 /* Suffix to attach to directories searched for commands.
1272 This looks like `MACHINE/VERSION/'. */
1274 static const char *machine_suffix
= 0;
1276 /* Suffix to attach to directories searched for commands.
1277 This is just `MACHINE/'. */
1279 static const char *just_machine_suffix
= 0;
1281 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1283 static const char *gcc_exec_prefix
;
1285 /* Default prefixes to attach to command names. */
1287 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1288 #undef MD_EXEC_PREFIX
1289 #undef MD_STARTFILE_PREFIX
1290 #undef MD_STARTFILE_PREFIX_1
1293 /* If no prefixes defined, use the null string, which will disable them. */
1294 #ifndef MD_EXEC_PREFIX
1295 #define MD_EXEC_PREFIX ""
1297 #ifndef MD_STARTFILE_PREFIX
1298 #define MD_STARTFILE_PREFIX ""
1300 #ifndef MD_STARTFILE_PREFIX_1
1301 #define MD_STARTFILE_PREFIX_1 ""
1304 /* Supply defaults for the standard prefixes. */
1306 #ifndef STANDARD_EXEC_PREFIX
1307 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1309 #ifndef STANDARD_STARTFILE_PREFIX
1310 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1312 #ifndef TOOLDIR_BASE_PREFIX
1313 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1315 #ifndef STANDARD_BINDIR_PREFIX
1316 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1319 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1320 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1321 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1323 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1324 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1325 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1326 static const char *const standard_startfile_prefix_1
= "/lib/";
1327 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1329 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1330 static const char *tooldir_prefix
;
1332 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1334 /* Subdirectory to use for locating libraries. Set by
1335 set_multilib_dir based on the compilation options. */
1337 static const char *multilib_dir
;
1339 /* Structure to keep track of the specs that have been defined so far.
1340 These are accessed using %(specname) or %[specname] in a compiler
1345 /* The following 2 fields must be first */
1346 /* to allow EXTRA_SPECS to be initialized */
1347 const char *name
; /* name of the spec. */
1348 const char *ptr
; /* available ptr if no static pointer */
1350 /* The following fields are not initialized */
1351 /* by EXTRA_SPECS */
1352 const char **ptr_spec
; /* pointer to the spec itself. */
1353 struct spec_list
*next
; /* Next spec in linked list. */
1354 int name_len
; /* length of the name */
1355 int alloc_p
; /* whether string was allocated */
1358 #define INIT_STATIC_SPEC(NAME,PTR) \
1359 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1361 /* List of statically defined specs. */
1362 static struct spec_list static_specs
[] =
1364 INIT_STATIC_SPEC ("asm", &asm_spec
),
1365 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1366 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1367 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1368 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1369 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1370 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1371 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1372 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1373 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1374 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1375 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1376 INIT_STATIC_SPEC ("link", &link_spec
),
1377 INIT_STATIC_SPEC ("lib", &lib_spec
),
1378 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1379 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1380 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1381 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1382 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1383 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1384 INIT_STATIC_SPEC ("version", &compiler_version
),
1385 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1386 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1387 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1388 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1389 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1390 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1391 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1392 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1393 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1394 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1397 #ifdef EXTRA_SPECS /* additional specs needed */
1398 /* Structure to keep track of just the first two args of a spec_list.
1399 That is all that the EXTRA_SPECS macro gives us. */
1402 const char *const name
;
1403 const char *const ptr
;
1406 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1407 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1410 /* List of dynamically allocates specs that have been defined so far. */
1412 static struct spec_list
*specs
= (struct spec_list
*) 0;
1414 /* Add appropriate libgcc specs to OBSTACK, taking into account
1415 various permutations of -shared-libgcc, -shared, and such. */
1417 #ifdef ENABLE_SHARED_LIBGCC
1419 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1420 struct obstack
*obstack
;
1421 const char *shared_name
;
1422 const char *static_name
;
1423 const char *eh_name
;
1428 /* If we see -shared-libgcc, then use the shared version. */
1429 sprintf (buffer
, "%%{shared-libgcc:%s %s}", shared_name
, static_name
);
1430 obstack_grow (obstack
, buffer
, strlen (buffer
));
1431 /* If we see -static-libgcc, then use the static version. */
1432 sprintf (buffer
, "%%{static-libgcc:%s %s}", static_name
, eh_name
);
1433 obstack_grow (obstack
, buffer
, strlen (buffer
));
1434 /* Otherwise, if we see -shared, then use the shared version
1435 if using EH registration routines or static version without
1436 exception handling routines otherwise. */
1437 p
= "%{!shared-libgcc:%{!static-libgcc:%{shared:";
1438 obstack_grow (obstack
, p
, strlen (p
));
1440 sprintf (buffer
, "%s}}}", static_name
);
1442 sprintf (buffer
, "%s %s}}}", shared_name
, static_name
);
1444 obstack_grow (obstack
, buffer
, strlen (buffer
));
1445 /* Otherwise, use the static version. */
1447 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s %s}}}",
1448 static_name
, eh_name
);
1449 obstack_grow (obstack
, buffer
, strlen (buffer
));
1451 #endif /* ENABLE_SHARED_LIBGCC */
1453 /* Initialize the specs lookup routines. */
1458 struct spec_list
*next
= (struct spec_list
*) 0;
1459 struct spec_list
*sl
= (struct spec_list
*) 0;
1463 return; /* Already initialized. */
1466 notice ("Using builtin specs.\n");
1469 extra_specs
= (struct spec_list
*)
1470 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1472 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1474 sl
= &extra_specs
[i
];
1475 sl
->name
= extra_specs_1
[i
].name
;
1476 sl
->ptr
= extra_specs_1
[i
].ptr
;
1478 sl
->name_len
= strlen (sl
->name
);
1479 sl
->ptr_spec
= &sl
->ptr
;
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, *signed_char, 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
;
1873 /* Get original name */
1874 p1
+= sizeof "%rename";
1875 while (*p1
== ' ' || *p1
== '\t')
1878 if (! ISALPHA ((unsigned char) *p1
))
1879 fatal ("specs %%rename syntax malformed after %ld characters",
1880 (long) (p1
- buffer
));
1883 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1886 if (*p2
!= ' ' && *p2
!= '\t')
1887 fatal ("specs %%rename syntax malformed after %ld characters",
1888 (long) (p2
- buffer
));
1892 while (*p2
== ' ' || *p2
== '\t')
1895 if (! ISALPHA ((unsigned char) *p2
))
1896 fatal ("specs %%rename syntax malformed after %ld characters",
1897 (long) (p2
- buffer
));
1899 /* Get new spec name. */
1901 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1905 fatal ("specs %%rename syntax malformed after %ld characters",
1906 (long) (p3
- buffer
));
1909 for (sl
= specs
; sl
; sl
= sl
->next
)
1910 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1914 fatal ("specs %s spec was not found to be renamed", p1
);
1916 if (strcmp (p1
, p2
) == 0)
1921 notice ("rename spec %s to %s\n", p1
, p2
);
1923 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1927 set_spec (p2
, *(sl
->ptr_spec
));
1929 free ((PTR
) *(sl
->ptr_spec
));
1931 *(sl
->ptr_spec
) = "";
1936 fatal ("specs unknown %% command after %ld characters",
1937 (long) (p1
- buffer
));
1940 /* Find the colon that should end the suffix. */
1942 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1945 /* The colon shouldn't be missing. */
1947 fatal ("specs file malformed after %ld characters",
1948 (long) (p1
- buffer
));
1950 /* Skip back over trailing whitespace. */
1952 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1955 /* Copy the suffix to a string. */
1956 suffix
= save_string (p
, p2
- p
);
1957 /* Find the next line. */
1958 p
= skip_whitespace (p1
+ 1);
1960 fatal ("specs file malformed after %ld characters",
1961 (long) (p
- buffer
));
1964 /* Find next blank line or end of string. */
1965 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1968 /* Specs end at the blank line and do not include the newline. */
1969 spec
= save_string (p
, p1
- p
);
1972 /* Delete backslash-newline sequences from the spec. */
1977 if (in
[0] == '\\' && in
[1] == '\n')
1979 else if (in
[0] == '#')
1980 while (*in
&& *in
!= '\n')
1988 if (suffix
[0] == '*')
1990 if (! strcmp (suffix
, "*link_command"))
1991 link_command_spec
= spec
;
1993 set_spec (suffix
+ 1, spec
);
1997 /* Add this pair to the vector. */
1999 = ((struct compiler
*)
2000 xrealloc (compilers
,
2001 (n_compilers
+ 2) * sizeof (struct compiler
)));
2003 compilers
[n_compilers
].suffix
= suffix
;
2004 compilers
[n_compilers
].spec
= spec
;
2006 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2010 link_command_spec
= spec
;
2013 if (link_command_spec
== 0)
2014 fatal ("spec file has no spec for linking");
2017 /* Record the names of temporary files we tell compilers to write,
2018 and delete them at the end of the run. */
2020 /* This is the common prefix we use to make temp file names.
2021 It is chosen once for each run of this program.
2022 It is substituted into a spec by %g or %j.
2023 Thus, all temp file names contain this prefix.
2024 In practice, all temp file names start with this prefix.
2026 This prefix comes from the envvar TMPDIR if it is defined;
2027 otherwise, from the P_tmpdir macro if that is defined;
2028 otherwise, in /usr/tmp or /tmp;
2029 or finally the current directory if all else fails. */
2031 static const char *temp_filename
;
2033 /* Length of the prefix. */
2035 static int temp_filename_length
;
2037 /* Define the list of temporary files to delete. */
2042 struct temp_file
*next
;
2045 /* Queue of files to delete on success or failure of compilation. */
2046 static struct temp_file
*always_delete_queue
;
2047 /* Queue of files to delete on failure of compilation. */
2048 static struct temp_file
*failure_delete_queue
;
2050 /* Record FILENAME as a file to be deleted automatically.
2051 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2052 otherwise delete it in any case.
2053 FAIL_DELETE nonzero means delete it if a compilation step fails;
2054 otherwise delete it in any case. */
2057 record_temp_file (filename
, always_delete
, fail_delete
)
2058 const char *filename
;
2062 char *const name
= xstrdup (filename
);
2066 struct temp_file
*temp
;
2067 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2068 if (! strcmp (name
, temp
->name
))
2071 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2072 temp
->next
= always_delete_queue
;
2074 always_delete_queue
= temp
;
2081 struct temp_file
*temp
;
2082 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2083 if (! strcmp (name
, temp
->name
))
2086 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2087 temp
->next
= failure_delete_queue
;
2089 failure_delete_queue
= temp
;
2095 /* Delete all the temporary files whose names we previously recorded. */
2098 delete_if_ordinary (name
)
2105 printf ("Delete %s? (y or n) ", name
);
2109 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2112 if (i
== 'y' || i
== 'Y')
2114 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2115 if (unlink (name
) < 0)
2117 perror_with_name (name
);
2121 delete_temp_files ()
2123 struct temp_file
*temp
;
2125 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2126 delete_if_ordinary (temp
->name
);
2127 always_delete_queue
= 0;
2130 /* Delete all the files to be deleted on error. */
2133 delete_failure_queue ()
2135 struct temp_file
*temp
;
2137 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2138 delete_if_ordinary (temp
->name
);
2142 clear_failure_queue ()
2144 failure_delete_queue
= 0;
2147 /* Build a list of search directories from PATHS.
2148 PREFIX is a string to prepend to the list.
2149 If CHECK_DIR_P is non-zero we ensure the directory exists.
2150 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2151 It is also used by the --print-search-dirs flag. */
2154 build_search_list (paths
, prefix
, check_dir_p
)
2155 struct path_prefix
*paths
;
2159 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2161 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2162 int first_time
= TRUE
;
2163 struct prefix_list
*pprefix
;
2165 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2166 obstack_1grow (&collect_obstack
, '=');
2168 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2170 int len
= strlen (pprefix
->prefix
);
2174 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2177 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2180 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2181 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2184 if (just_machine_suffix
2185 && pprefix
->require_machine_suffix
== 2
2187 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2190 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2193 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2194 obstack_grow (&collect_obstack
, just_machine_suffix
,
2198 if (! pprefix
->require_machine_suffix
)
2201 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2204 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2208 obstack_1grow (&collect_obstack
, '\0');
2209 return obstack_finish (&collect_obstack
);
2212 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2216 putenv_from_prefixes (paths
, env_var
)
2217 struct path_prefix
*paths
;
2218 const char *env_var
;
2220 putenv (build_search_list (paths
, env_var
, 1));
2225 /* FIXME: the location independence code for VMS is hairier than this,
2226 and hasn't been written. */
2228 /* Split a filename into component directories. */
2231 split_directories (name
, ptr_num_dirs
)
2240 /* Count the number of directories. Special case MSDOS disk names as part
2241 of the initial directory. */
2243 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2244 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2249 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2251 while ((ch
= *p
++) != '\0')
2253 if (IS_DIR_SEPARATOR (ch
))
2256 while (IS_DIR_SEPARATOR (*p
))
2261 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2263 /* Now copy the directory parts. */
2266 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2267 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2269 dirs
[num_dirs
++] = save_string (p
, 3);
2272 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2275 while ((ch
= *p
++) != '\0')
2277 if (IS_DIR_SEPARATOR (ch
))
2279 while (IS_DIR_SEPARATOR (*p
))
2282 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2288 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2290 dirs
[num_dirs
] = NULL
;
2292 *ptr_num_dirs
= num_dirs
;
2297 /* Release storage held by split directories. */
2300 free_split_directories (dirs
)
2305 while (dirs
[i
] != NULL
)
2308 free ((char *) dirs
);
2311 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2312 to PREFIX starting with the directory portion of PROGNAME and a relative
2313 pathname of the difference between BIN_PREFIX and PREFIX.
2315 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2316 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2317 function will return /red/green/blue/../omega.
2319 If no relative prefix can be found, return NULL. */
2322 make_relative_prefix (progname
, bin_prefix
, prefix
)
2323 const char *progname
;
2324 const char *bin_prefix
;
2327 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2328 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2331 prog_dirs
= split_directories (progname
, &prog_num
);
2332 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2334 /* If there is no full pathname, try to find the program by checking in each
2335 of the directories specified in the PATH environment variable. */
2340 GET_ENV_PATH_LIST (temp
, "PATH");
2343 char *startp
, *endp
, *nstore
;
2344 size_t prefixlen
= strlen (temp
) + 1;
2348 nstore
= (char *) alloca (prefixlen
+ strlen (progname
) + 1);
2350 startp
= endp
= temp
;
2353 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2358 nstore
[1] = DIR_SEPARATOR
;
2363 strncpy (nstore
, startp
, endp
- startp
);
2364 if (! IS_DIR_SEPARATOR (endp
[-1]))
2366 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2367 nstore
[endp
- startp
+ 1] = 0;
2370 nstore
[endp
- startp
] = 0;
2372 strcat (nstore
, progname
);
2373 if (! access (nstore
, X_OK
)
2374 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2375 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2379 free_split_directories (prog_dirs
);
2381 prog_dirs
= split_directories (progname
, &prog_num
);
2387 endp
= startp
= endp
+ 1;
2395 /* Remove the program name from comparison of directory names. */
2398 /* Determine if the compiler is installed in the standard location, and if
2399 so, we don't need to specify relative directories. Also, if argv[0]
2400 doesn't contain any directory specifiers, there is not much we can do. */
2402 if (prog_num
== bin_num
)
2404 for (i
= 0; i
< bin_num
; i
++)
2406 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2410 if (prog_num
<= 0 || i
== bin_num
)
2413 free_split_directories (prog_dirs
);
2414 free_split_directories (bin_dirs
);
2415 prog_dirs
= bin_dirs
= (char **) 0;
2420 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2422 /* Find how many directories are in common between bin_prefix & prefix. */
2423 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2424 for (common
= 0; common
< n
; common
++)
2426 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2430 /* If there are no common directories, there can be no relative prefix. */
2433 free_split_directories (prog_dirs
);
2434 free_split_directories (bin_dirs
);
2435 free_split_directories (prefix_dirs
);
2439 /* Build up the pathnames in argv[0]. */
2440 for (i
= 0; i
< prog_num
; i
++)
2441 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2443 /* Now build up the ..'s. */
2444 for (i
= common
; i
< n
; i
++)
2446 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2447 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2450 /* Put in directories to move over to prefix. */
2451 for (i
= common
; i
< prefix_num
; i
++)
2452 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2454 free_split_directories (prog_dirs
);
2455 free_split_directories (bin_dirs
);
2456 free_split_directories (prefix_dirs
);
2458 obstack_1grow (&obstack
, '\0');
2459 return obstack_finish (&obstack
);
2463 /* Check whether NAME can be accessed in MODE. This is like access,
2464 except that it never considers directories to be executable. */
2467 access_check (name
, mode
)
2475 if (stat (name
, &st
) < 0
2476 || S_ISDIR (st
.st_mode
))
2480 return access (name
, mode
);
2483 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2484 access to check permissions.
2485 Return 0 if not found, otherwise return its name, allocated with malloc. */
2488 find_a_file (pprefix
, name
, mode
)
2489 struct path_prefix
*pprefix
;
2494 const char *const file_suffix
=
2495 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2496 struct prefix_list
*pl
;
2497 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2499 #ifdef DEFAULT_ASSEMBLER
2500 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2501 return xstrdup (DEFAULT_ASSEMBLER
);
2504 #ifdef DEFAULT_LINKER
2505 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2506 return xstrdup (DEFAULT_LINKER
);
2510 len
+= strlen (machine_suffix
);
2512 temp
= xmalloc (len
);
2514 /* Determine the filename to execute (special case for absolute paths). */
2516 if (IS_ABSOLUTE_PATHNAME (name
))
2518 if (access (name
, mode
) == 0)
2520 strcpy (temp
, name
);
2525 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2529 /* Some systems have a suffix for executable files.
2530 So try appending that first. */
2531 if (file_suffix
[0] != 0)
2533 strcpy (temp
, pl
->prefix
);
2534 strcat (temp
, machine_suffix
);
2535 strcat (temp
, name
);
2536 strcat (temp
, file_suffix
);
2537 if (access_check (temp
, mode
) == 0)
2539 if (pl
->used_flag_ptr
!= 0)
2540 *pl
->used_flag_ptr
= 1;
2545 /* Now try just the name. */
2546 strcpy (temp
, pl
->prefix
);
2547 strcat (temp
, machine_suffix
);
2548 strcat (temp
, name
);
2549 if (access_check (temp
, mode
) == 0)
2551 if (pl
->used_flag_ptr
!= 0)
2552 *pl
->used_flag_ptr
= 1;
2557 /* Certain prefixes are tried with just the machine type,
2558 not the version. This is used for finding as, ld, etc. */
2559 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2561 /* Some systems have a suffix for executable files.
2562 So try appending that first. */
2563 if (file_suffix
[0] != 0)
2565 strcpy (temp
, pl
->prefix
);
2566 strcat (temp
, just_machine_suffix
);
2567 strcat (temp
, name
);
2568 strcat (temp
, file_suffix
);
2569 if (access_check (temp
, mode
) == 0)
2571 if (pl
->used_flag_ptr
!= 0)
2572 *pl
->used_flag_ptr
= 1;
2577 strcpy (temp
, pl
->prefix
);
2578 strcat (temp
, just_machine_suffix
);
2579 strcat (temp
, name
);
2580 if (access_check (temp
, mode
) == 0)
2582 if (pl
->used_flag_ptr
!= 0)
2583 *pl
->used_flag_ptr
= 1;
2588 /* Certain prefixes can't be used without the machine suffix
2589 when the machine or version is explicitly specified. */
2590 if (! pl
->require_machine_suffix
)
2592 /* Some systems have a suffix for executable files.
2593 So try appending that first. */
2594 if (file_suffix
[0] != 0)
2596 strcpy (temp
, pl
->prefix
);
2597 strcat (temp
, name
);
2598 strcat (temp
, file_suffix
);
2599 if (access_check (temp
, mode
) == 0)
2601 if (pl
->used_flag_ptr
!= 0)
2602 *pl
->used_flag_ptr
= 1;
2607 strcpy (temp
, pl
->prefix
);
2608 strcat (temp
, name
);
2609 if (access_check (temp
, mode
) == 0)
2611 if (pl
->used_flag_ptr
!= 0)
2612 *pl
->used_flag_ptr
= 1;
2622 /* Ranking of prefixes in the sort list. -B prefixes are put before
2625 enum path_prefix_priority
2627 PREFIX_PRIORITY_B_OPT
,
2628 PREFIX_PRIORITY_LAST
2631 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2632 order according to PRIORITY. Within each PRIORITY, new entries are
2635 If WARN is nonzero, we will warn if no file is found
2636 through this prefix. WARN should point to an int
2637 which will be set to 1 if this entry is used.
2639 COMPONENT is the value to be passed to update_path.
2641 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2642 the complete value of machine_suffix.
2643 2 means try both machine_suffix and just_machine_suffix. */
2646 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2647 struct path_prefix
*pprefix
;
2649 const char *component
;
2650 /* enum prefix_priority */ int priority
;
2651 int require_machine_suffix
;
2654 struct prefix_list
*pl
, **prev
;
2657 for (prev
= &pprefix
->plist
;
2658 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2659 prev
= &(*prev
)->next
)
2662 /* Keep track of the longest prefix */
2664 prefix
= update_path (prefix
, component
);
2665 len
= strlen (prefix
);
2666 if (len
> pprefix
->max_len
)
2667 pprefix
->max_len
= len
;
2669 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2670 pl
->prefix
= prefix
;
2671 pl
->require_machine_suffix
= require_machine_suffix
;
2672 pl
->used_flag_ptr
= warn
;
2673 pl
->priority
= priority
;
2677 /* Insert after PREV */
2682 /* Execute the command specified by the arguments on the current line of spec.
2683 When using pipes, this includes several piped-together commands
2684 with `|' between them.
2686 Return 0 if successful, -1 if failed. */
2692 int n_commands
; /* # of command. */
2696 const char *prog
; /* program name. */
2697 const char **argv
; /* vector of args. */
2698 int pid
; /* pid of process for this command. */
2701 struct command
*commands
; /* each command buffer with above info. */
2703 /* Count # of piped commands. */
2704 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2705 if (strcmp (argbuf
[i
], "|") == 0)
2708 /* Get storage for each command. */
2709 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2711 /* Split argbuf into its separate piped processes,
2712 and record info about each one.
2713 Also search for the programs that are to be run. */
2715 commands
[0].prog
= argbuf
[0]; /* first command. */
2716 commands
[0].argv
= &argbuf
[0];
2717 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2720 commands
[0].argv
[0] = string
;
2722 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2723 if (strcmp (argbuf
[i
], "|") == 0)
2724 { /* each command. */
2725 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2726 fatal ("-pipe not supported");
2728 argbuf
[i
] = 0; /* termination of command args. */
2729 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2730 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2731 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2733 commands
[n_commands
].argv
[0] = string
;
2737 argbuf
[argbuf_index
] = 0;
2739 /* If -v, print what we are about to do, and maybe query. */
2743 /* For help listings, put a blank line between sub-processes. */
2744 if (print_help_list
)
2745 fputc ('\n', stderr
);
2747 /* Print each piped command as a separate line. */
2748 for (i
= 0; i
< n_commands
; i
++)
2750 const char *const *j
;
2752 if (verbose_only_flag
)
2754 for (j
= commands
[i
].argv
; *j
; j
++)
2757 fprintf (stderr
, " \"");
2758 for (p
= *j
; *p
; ++p
)
2760 if (*p
== '"' || *p
== '\\' || *p
== '$')
2761 fputc ('\\', stderr
);
2764 fputc ('"', stderr
);
2768 for (j
= commands
[i
].argv
; *j
; j
++)
2769 fprintf (stderr
, " %s", *j
);
2771 /* Print a pipe symbol after all but the last command. */
2772 if (i
+ 1 != n_commands
)
2773 fprintf (stderr
, " |");
2774 fprintf (stderr
, "\n");
2777 if (verbose_only_flag
!= 0)
2780 notice ("\nGo ahead? (y or n) ");
2784 while (getchar () != '\n')
2787 if (i
!= 'y' && i
!= 'Y')
2792 /* Run each piped subprocess. */
2794 for (i
= 0; i
< n_commands
; i
++)
2796 char *errmsg_fmt
, *errmsg_arg
;
2797 const char *string
= commands
[i
].argv
[0];
2799 /* For some bizarre reason, the second argument of execvp() is
2800 char *const *, not const char *const *. */
2801 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2802 programname
, temp_filename
,
2803 &errmsg_fmt
, &errmsg_arg
,
2804 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2805 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2806 | (string
== commands
[i
].prog
2807 ? PEXECUTE_SEARCH
: 0)
2808 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2810 if (commands
[i
].pid
== -1)
2811 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2813 if (string
!= commands
[i
].prog
)
2814 free ((PTR
) string
);
2819 /* Wait for all the subprocesses to finish.
2820 We don't care what order they finish in;
2821 we know that N_COMMANDS waits will get them all.
2822 Ignore subprocesses that we don't know about,
2823 since they can be spawned by the process that exec'ed us. */
2827 #ifdef HAVE_GETRUSAGE
2829 double ut
= 0.0, st
= 0.0;
2832 for (i
= 0; i
< n_commands
;)
2838 pid
= pwait (commands
[i
].pid
, &status
, 0);
2842 #ifdef HAVE_GETRUSAGE
2845 /* getrusage returns the total resource usage of all children
2846 up to now. Copy the previous values into prus, get the
2847 current statistics, then take the difference. */
2850 getrusage (RUSAGE_CHILDREN
, &rus
);
2851 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2852 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2853 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2855 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2856 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2857 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2861 for (j
= 0; j
< n_commands
; j
++)
2862 if (commands
[j
].pid
== pid
)
2865 if (WIFSIGNALED (status
))
2868 /* SIGPIPE is a special case. It happens in -pipe mode
2869 when the compiler dies before the preprocessor is
2870 done, or the assembler dies before the compiler is
2871 done. There's generally been an error already, and
2872 this is just fallout. So don't generate another error
2873 unless we would otherwise have succeeded. */
2874 if (WTERMSIG (status
) == SIGPIPE
2875 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2880 Internal error: %s (program %s)\n\
2881 Please submit a full bug report.\n\
2882 See %s for instructions.",
2883 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2888 else if (WIFEXITED (status
)
2889 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2891 if (WEXITSTATUS (status
) > greatest_status
)
2892 greatest_status
= WEXITSTATUS (status
);
2895 #ifdef HAVE_GETRUSAGE
2896 if (report_times
&& ut
+ st
!= 0)
2897 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2906 /* Find all the switches given to us
2907 and make a vector describing them.
2908 The elements of the vector are strings, one per switch given.
2909 If a switch uses following arguments, then the `part1' field
2910 is the switch itself and the `args' field
2911 is a null-terminated vector containing the following arguments.
2912 The `live_cond' field is:
2914 1 if the switch is true in a conditional spec,
2915 -1 if false (overridden by a later switch)
2916 -2 if this switch should be ignored (used in %{<S})
2917 The `validated' field is nonzero if any spec has looked at this switch;
2918 if it remains zero at the end of the run, it must be meaningless. */
2921 #define SWITCH_FALSE -1
2922 #define SWITCH_IGNORE -2
2923 #define SWITCH_LIVE 1
2930 unsigned char validated
;
2931 unsigned char ordering
;
2934 static struct switchstr
*switches
;
2936 static int n_switches
;
2941 const char *language
;
2944 /* Also a vector of input files specified. */
2946 static struct infile
*infiles
;
2950 /* This counts the number of libraries added by lang_specific_driver, so that
2951 we can tell if there were any user supplied any files or libraries. */
2953 static int added_libraries
;
2955 /* And a vector of corresponding output files is made up later. */
2957 const char **outfiles
;
2959 /* Used to track if none of the -B paths are used. */
2962 /* Used to track if standard path isn't used and -b or -V is specified. */
2963 static int warn_std
;
2965 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2966 static int *warn_std_ptr
= 0;
2968 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2970 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2971 is true if we should look for an executable suffix. DO_OBJ
2972 is true if we should look for an object suffix. */
2975 convert_filename (name
, do_exe
, do_obj
)
2977 int do_exe ATTRIBUTE_UNUSED
;
2978 int do_obj ATTRIBUTE_UNUSED
;
2980 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2988 len
= strlen (name
);
2990 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2991 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2992 if (do_obj
&& len
> 2
2993 && name
[len
- 2] == '.'
2994 && name
[len
- 1] == 'o')
2996 obstack_grow (&obstack
, name
, len
- 2);
2997 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2998 name
= obstack_finish (&obstack
);
3002 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3003 /* If there is no filetype, make it the executable suffix (which includes
3004 the "."). But don't get confused if we have just "-o". */
3005 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3008 for (i
= len
- 1; i
>= 0; i
--)
3009 if (IS_DIR_SEPARATOR (name
[i
]))
3012 for (i
++; i
< len
; i
++)
3016 obstack_grow (&obstack
, name
, len
);
3017 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3018 strlen (TARGET_EXECUTABLE_SUFFIX
));
3019 name
= obstack_finish (&obstack
);
3026 /* Display the command line switches accepted by gcc. */
3030 printf (_("Usage: %s [options] file...\n"), programname
);
3031 fputs (_("Options:\n"), stdout
);
3033 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3034 fputs (_(" --help Display this information\n"), stdout
);
3035 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3037 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3038 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3039 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3040 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3041 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3042 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3043 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3044 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3045 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3047 -print-multi-lib Display the mapping between command line options and\n\
3048 multiple library search directories\n"), stdout
);
3049 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3050 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3051 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3052 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3053 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3054 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3055 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3056 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout
);
3057 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3058 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3059 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3060 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3061 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3062 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3063 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3064 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3065 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3066 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3068 -x <language> Specify the language of the following input files\n\
3069 Permissable languages include: c c++ assembler none\n\
3070 'none' means revert to the default behavior of\n\
3071 guessing the language based on the file's extension\n\
3075 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3076 passed on to the various sub-processes invoked by %s. In order to pass\n\
3077 other options on to these processes the -W<letter> options must be used.\n\
3080 /* The rest of the options are displayed by invocations of the various
3085 add_preprocessor_option (option
, len
)
3089 n_preprocessor_options
++;
3091 if (! preprocessor_options
)
3092 preprocessor_options
3093 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3095 preprocessor_options
3096 = (char **) xrealloc (preprocessor_options
,
3097 n_preprocessor_options
* sizeof (char *));
3099 preprocessor_options
[n_preprocessor_options
- 1] =
3100 save_string (option
, len
);
3104 add_assembler_option (option
, len
)
3108 n_assembler_options
++;
3110 if (! assembler_options
)
3112 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3115 = (char **) xrealloc (assembler_options
,
3116 n_assembler_options
* sizeof (char *));
3118 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3122 add_linker_option (option
, len
)
3128 if (! linker_options
)
3130 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3133 = (char **) xrealloc (linker_options
,
3134 n_linker_options
* sizeof (char *));
3136 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3139 /* Create the vector `switches' and its contents.
3140 Store its length in `n_switches'. */
3143 process_command (argc
, argv
)
3145 const char *const *argv
;
3150 const char *spec_lang
= 0;
3151 int last_language_n_infiles
;
3154 int lang_n_infiles
= 0;
3155 #ifdef MODIFY_TARGET_NAME
3156 int is_modify_target_name
;
3160 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3164 added_libraries
= 0;
3166 /* Figure compiler version from version string. */
3168 compiler_version
= temp1
= xstrdup (version_string
);
3170 for (; *temp1
; ++temp1
)
3179 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3180 see if we can create it from the pathname specified in argv[0]. */
3183 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3184 if (!gcc_exec_prefix
)
3186 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3187 standard_exec_prefix
);
3188 if (gcc_exec_prefix
)
3189 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3193 if (gcc_exec_prefix
)
3195 int len
= strlen (gcc_exec_prefix
);
3197 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3198 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3200 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3201 if (IS_DIR_SEPARATOR (*temp
)
3202 && strncmp (temp
+ 1, "lib", 3) == 0
3203 && IS_DIR_SEPARATOR (temp
[4])
3204 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3205 len
-= sizeof ("/lib/gcc-lib/") - 1;
3208 set_std_prefix (gcc_exec_prefix
, len
);
3209 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3210 PREFIX_PRIORITY_LAST
, 0, NULL
);
3211 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3212 PREFIX_PRIORITY_LAST
, 0, NULL
);
3215 /* COMPILER_PATH and LIBRARY_PATH have values
3216 that are lists of directory names with colons. */
3218 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
3221 const char *startp
, *endp
;
3222 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3224 startp
= endp
= temp
;
3227 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3229 strncpy (nstore
, startp
, endp
- startp
);
3231 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3232 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3234 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3235 nstore
[endp
- startp
+ 1] = 0;
3238 nstore
[endp
- startp
] = 0;
3239 add_prefix (&exec_prefixes
, nstore
, 0,
3240 PREFIX_PRIORITY_LAST
, 0, NULL
);
3241 add_prefix (&include_prefixes
,
3242 concat (nstore
, "include", NULL
),
3243 0, PREFIX_PRIORITY_LAST
, 0, NULL
);
3246 endp
= startp
= endp
+ 1;
3253 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3254 if (temp
&& *cross_compile
== '0')
3256 const char *startp
, *endp
;
3257 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3259 startp
= endp
= temp
;
3262 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3264 strncpy (nstore
, startp
, endp
- startp
);
3266 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3267 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3269 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3270 nstore
[endp
- startp
+ 1] = 0;
3273 nstore
[endp
- startp
] = 0;
3274 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3275 PREFIX_PRIORITY_LAST
, 0, NULL
);
3278 endp
= startp
= endp
+ 1;
3285 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3286 GET_ENV_PATH_LIST (temp
, "LPATH");
3287 if (temp
&& *cross_compile
== '0')
3289 const char *startp
, *endp
;
3290 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3292 startp
= endp
= temp
;
3295 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3297 strncpy (nstore
, startp
, endp
- startp
);
3299 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3300 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3302 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3303 nstore
[endp
- startp
+ 1] = 0;
3306 nstore
[endp
- startp
] = 0;
3307 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3308 PREFIX_PRIORITY_LAST
, 0, NULL
);
3311 endp
= startp
= endp
+ 1;
3318 /* Convert new-style -- options to old-style. */
3319 translate_options (&argc
, &argv
);
3321 /* Do language-specific adjustment/addition of flags. */
3322 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3324 /* Scan argv twice. Here, the first time, just count how many switches
3325 there will be in their vector, and how many input files in theirs.
3326 Also parse any switches that determine the configuration name, such as -b.
3327 Here we also parse the switches that cc itself uses (e.g. -v). */
3329 for (i
= 1; i
< argc
; i
++)
3331 if (! strcmp (argv
[i
], "-dumpspecs"))
3333 struct spec_list
*sl
;
3335 for (sl
= specs
; sl
; sl
= sl
->next
)
3336 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3337 if (link_command_spec
)
3338 printf ("*link_command:\n%s\n\n", link_command_spec
);
3341 else if (! strcmp (argv
[i
], "-dumpversion"))
3343 printf ("%s\n", spec_version
);
3346 else if (! strcmp (argv
[i
], "-dumpmachine"))
3348 printf ("%s\n", spec_machine
);
3351 else if (strcmp (argv
[i
], "-fhelp") == 0)
3353 /* translate_options () has turned --help into -fhelp. */
3354 print_help_list
= 1;
3356 /* We will be passing a dummy file on to the sub-processes. */
3360 /* CPP driver cannot obtain switch from cc1_options. */
3362 add_preprocessor_option ("--help", 6);
3363 add_assembler_option ("--help", 6);
3364 add_linker_option ("--help", 6);
3366 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3368 /* translate_options() has turned --target-help into -ftarget-help. */
3369 target_help_flag
= 1;
3371 /* We will be passing a dummy file on to the sub-processes. */
3375 /* CPP driver cannot obtain switch from cc1_options. */
3377 add_preprocessor_option ("--target-help", 13);
3378 add_assembler_option ("--target-help", 13);
3379 add_linker_option ("--target-help", 13);
3381 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3383 pass_exit_codes
= 1;
3386 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3387 print_search_dirs
= 1;
3388 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3389 print_file_name
= "libgcc.a";
3390 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3391 print_file_name
= argv
[i
] + 17;
3392 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3393 print_prog_name
= argv
[i
] + 17;
3394 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3395 print_multi_lib
= 1;
3396 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3397 print_multi_directory
= 1;
3398 else if (! strncmp (argv
[i
], "-Wa,", 4))
3401 /* Pass the rest of this option to the assembler. */
3403 /* Split the argument at commas. */
3405 for (j
= 4; argv
[i
][j
]; j
++)
3406 if (argv
[i
][j
] == ',')
3408 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3412 /* Record the part after the last comma. */
3413 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3415 else if (! strncmp (argv
[i
], "-Wp,", 4))
3418 /* Pass the rest of this option to the preprocessor. */
3420 /* Split the argument at commas. */
3422 for (j
= 4; argv
[i
][j
]; j
++)
3423 if (argv
[i
][j
] == ',')
3425 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3429 /* Record the part after the last comma. */
3430 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3432 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3433 /* The +e options to the C++ front-end. */
3435 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3438 /* Split the argument at commas. */
3439 for (j
= 3; argv
[i
][j
]; j
++)
3440 n_infiles
+= (argv
[i
][j
] == ',');
3442 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3445 fatal ("argument to `-Xlinker' is missing");
3450 else if (strcmp (argv
[i
], "-l") == 0)
3453 fatal ("argument to `-l' is missing");
3458 else if (strncmp (argv
[i
], "-l", 2) == 0)
3460 else if (strcmp (argv
[i
], "-save-temps") == 0)
3462 save_temps_flag
= 1;
3465 else if (strcmp (argv
[i
], "-specs") == 0)
3467 struct user_specs
*user
= (struct user_specs
*)
3468 xmalloc (sizeof (struct user_specs
));
3470 fatal ("argument to `-specs' is missing");
3472 user
->next
= (struct user_specs
*) 0;
3473 user
->filename
= argv
[i
];
3474 if (user_specs_tail
)
3475 user_specs_tail
->next
= user
;
3477 user_specs_head
= user
;
3478 user_specs_tail
= user
;
3480 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3482 struct user_specs
*user
= (struct user_specs
*)
3483 xmalloc (sizeof (struct user_specs
));
3484 if (strlen (argv
[i
]) == 7)
3485 fatal ("argument to `-specs=' is missing");
3487 user
->next
= (struct user_specs
*) 0;
3488 user
->filename
= argv
[i
] + 7;
3489 if (user_specs_tail
)
3490 user_specs_tail
->next
= user
;
3492 user_specs_head
= user
;
3493 user_specs_tail
= user
;
3495 else if (strcmp (argv
[i
], "-time") == 0)
3497 else if (strcmp (argv
[i
], "-###") == 0)
3499 /* This is similar to -v except that there is no execution
3500 of the commands and the echoed arguments are quoted. It
3501 is intended for use in shell scripts to capture the
3502 driver-generated command line. */
3503 verbose_only_flag
++;
3506 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3508 const char *p
= &argv
[i
][1];
3515 if (p
[1] == 0 && i
+ 1 == argc
)
3516 fatal ("argument to `-b' is missing");
3518 spec_machine
= argv
[++i
];
3520 spec_machine
= p
+ 1;
3522 warn_std_ptr
= &warn_std
;
3530 if (p
[1] == 0 && i
+ 1 == argc
)
3531 fatal ("argument to `-B' is missing");
3537 len
= strlen (value
);
3539 /* Catch the case where the user has forgotten to append a
3540 directory separator to the path. Note, they may be using
3541 -B to add an executable name prefix, eg "i386-elf-", in
3542 order to distinguish between multiple installations of
3543 GCC in the same directory. Hence we must check to see
3544 if appending a directory separator actually makes a
3545 valid directory name. */
3546 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3547 && is_directory (value
, "", 0))
3549 char *tmp
= xmalloc (len
+ 2);
3550 strcpy (tmp
, value
);
3551 tmp
[len
] = DIR_SEPARATOR
;
3556 /* As a kludge, if the arg is "[foo/]stageN/", just
3557 add "[foo/]include" to the include prefix. */
3560 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3561 && strncmp (value
+ len
- 7, "stage", 5) == 0
3562 && ISDIGIT (value
[len
- 2])
3563 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3566 add_prefix (&include_prefixes
, "include", NULL
,
3567 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3570 char * string
= xmalloc (len
+ 1);
3572 strncpy (string
, value
, len
- 7);
3573 strcpy (string
+ len
- 7, "include");
3574 add_prefix (&include_prefixes
, string
, NULL
,
3575 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3579 add_prefix (&exec_prefixes
, value
, NULL
,
3580 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3581 add_prefix (&startfile_prefixes
, value
, NULL
,
3582 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3583 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3584 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3589 case 'v': /* Print our subcommands and print versions. */
3591 /* If they do anything other than exactly `-v', don't set
3592 verbose_flag; rather, continue on to give the error. */
3600 if (p
[1] == 0 && i
+ 1 == argc
)
3601 fatal ("argument to `-V' is missing");
3603 spec_version
= argv
[++i
];
3605 spec_version
= p
+ 1;
3606 compiler_version
= spec_version
;
3607 warn_std_ptr
= &warn_std
;
3609 /* Validate the version number. Use the same checks
3610 done when inserting it into a spec.
3612 The format of the version string is
3613 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3615 const char *v
= compiler_version
;
3617 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3618 while (! ISDIGIT (*v
))
3621 if (v
> compiler_version
&& v
[-1] != '-')
3622 fatal ("invalid version number format");
3624 /* Set V after the first period. */
3625 while (ISDIGIT (*v
))
3629 fatal ("invalid version number format");
3632 while (ISDIGIT (*v
))
3635 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3636 fatal ("invalid version number format");
3652 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3657 /* Forward scan, just in case -S or -c is specified
3664 if (argv
[j
][0] == '-')
3666 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3672 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3673 j
+= skip
- (argv
[j
][2] != 0);
3674 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3681 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3683 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3685 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3692 #ifdef MODIFY_TARGET_NAME
3693 is_modify_target_name
= 0;
3696 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3697 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3700 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3701 + strlen (spec_machine
));
3704 int made_addition
= 0;
3706 is_modify_target_name
= 1;
3707 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3709 if (modify_target
[j
].add_del
== DELETE
3710 && (! strncmp (q
, modify_target
[j
].str
,
3711 strlen (modify_target
[j
].str
))))
3712 p
+= strlen (modify_target
[j
].str
);
3713 else if (modify_target
[j
].add_del
== ADD
3714 && ! made_addition
&& *p
== '-')
3716 for (r
= modify_target
[j
].str
; *r
!= 0; )
3724 spec_machine
= new_name
;
3727 if (is_modify_target_name
)
3733 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3734 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3735 else if (WORD_SWITCH_TAKES_ARG (p
))
3736 i
+= WORD_SWITCH_TAKES_ARG (p
);
3746 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3747 fatal ("cannot specify -o with -c or -S and multiple compilations");
3749 /* Set up the search paths before we go looking for config files. */
3751 /* These come before the md prefixes so that we will find gcc's subcommands
3752 (such as cpp) rather than those of the host system. */
3753 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3754 as well as trying the machine and the version. */
3756 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3757 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3758 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3759 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3760 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3761 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3764 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3765 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3766 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3767 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3769 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3770 dir_separator_str
, NULL
);
3772 /* If tooldir is relative, base it on exec_prefixes. A relative
3773 tooldir lets us move the installed tree as a unit.
3775 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3776 directories, so that we can search both the user specified directory
3777 and the standard place. */
3779 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3781 if (gcc_exec_prefix
)
3783 char *gcc_exec_tooldir_prefix
3784 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3785 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3787 add_prefix (&exec_prefixes
,
3788 concat (gcc_exec_tooldir_prefix
, "bin",
3789 dir_separator_str
, NULL
),
3790 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3791 add_prefix (&startfile_prefixes
,
3792 concat (gcc_exec_tooldir_prefix
, "lib",
3793 dir_separator_str
, NULL
),
3794 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3797 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3798 dir_separator_str
, spec_version
,
3799 dir_separator_str
, tooldir_prefix
, NULL
);
3802 add_prefix (&exec_prefixes
,
3803 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3804 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3805 add_prefix (&startfile_prefixes
,
3806 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3807 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3809 /* More prefixes are enabled in main, after we read the specs file
3810 and determine whether this is cross-compilation or not. */
3812 /* Then create the space for the vectors and scan again. */
3814 switches
= ((struct switchstr
*)
3815 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3816 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3819 last_language_n_infiles
= -1;
3821 /* This, time, copy the text of each switch and store a pointer
3822 to the copy in the vector of switches.
3823 Store all the infiles in their vector. */
3825 for (i
= 1; i
< argc
; i
++)
3827 /* Just skip the switches that were handled by the preceding loop. */
3828 #ifdef MODIFY_TARGET_NAME
3829 is_modify_target_name
= 0;
3831 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3832 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3833 is_modify_target_name
= 1;
3835 if (is_modify_target_name
)
3839 if (! strncmp (argv
[i
], "-Wa,", 4))
3841 else if (! strncmp (argv
[i
], "-Wp,", 4))
3843 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3845 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3847 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3849 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3851 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3853 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3855 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3857 else if (! strcmp (argv
[i
], "-ftarget-help"))
3859 else if (! strcmp (argv
[i
], "-fhelp"))
3861 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3863 /* Compensate for the +e options to the C++ front-end;
3864 they're there simply for cfront call-compatibility. We do
3865 some magic in default_compilers to pass them down properly.
3866 Note we deliberately start at the `+' here, to avoid passing
3867 -e0 or -e1 down into the linker. */
3868 switches
[n_switches
].part1
= &argv
[i
][0];
3869 switches
[n_switches
].args
= 0;
3870 switches
[n_switches
].live_cond
= SWITCH_OK
;
3871 switches
[n_switches
].validated
= 0;
3874 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3877 /* Split the argument at commas. */
3879 for (j
= 4; argv
[i
][j
]; j
++)
3880 if (argv
[i
][j
] == ',')
3882 infiles
[n_infiles
].language
= "*";
3883 infiles
[n_infiles
++].name
3884 = save_string (argv
[i
] + prev
, j
- prev
);
3887 /* Record the part after the last comma. */
3888 infiles
[n_infiles
].language
= "*";
3889 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3891 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3893 infiles
[n_infiles
].language
= "*";
3894 infiles
[n_infiles
++].name
= argv
[++i
];
3896 else if (strcmp (argv
[i
], "-l") == 0)
3897 { /* POSIX allows separation of -l and the lib arg;
3898 canonicalize by concatenating -l with its arg */
3899 infiles
[n_infiles
].language
= "*";
3900 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3902 else if (strncmp (argv
[i
], "-l", 2) == 0)
3904 infiles
[n_infiles
].language
= "*";
3905 infiles
[n_infiles
++].name
= argv
[i
];
3907 else if (strcmp (argv
[i
], "-specs") == 0)
3909 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3911 else if (strcmp (argv
[i
], "-time") == 0)
3913 else if ((save_temps_flag
|| report_times
)
3914 && strcmp (argv
[i
], "-pipe") == 0)
3916 /* -save-temps overrides -pipe, so that temp files are produced */
3917 if (save_temps_flag
)
3918 error ("warning: -pipe ignored because -save-temps specified");
3919 /* -time overrides -pipe because we can't get correct stats when
3920 multiple children are running at once. */
3921 else if (report_times
)
3922 error ("warning: -pipe ignored because -time specified");
3924 else if (strcmp (argv
[i
], "-###") == 0)
3926 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3928 const char *p
= &argv
[i
][1];
3933 if (p
[1] == 0 && i
+ 1 == argc
)
3934 fatal ("argument to `-x' is missing");
3936 spec_lang
= argv
[++i
];
3939 if (! strcmp (spec_lang
, "none"))
3940 /* Suppress the warning if -xnone comes after the last input
3941 file, because alternate command interfaces like g++ might
3942 find it useful to place -xnone after each input file. */
3945 last_language_n_infiles
= n_infiles
;
3948 switches
[n_switches
].part1
= p
;
3949 /* Deal with option arguments in separate argv elements. */
3950 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3951 || WORD_SWITCH_TAKES_ARG (p
))
3954 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3958 /* Count only the option arguments in separate argv elements. */
3959 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3961 if (i
+ n_args
>= argc
)
3962 fatal ("argument to `-%s' is missing", p
);
3963 switches
[n_switches
].args
3964 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3966 switches
[n_switches
].args
[j
++] = argv
[++i
];
3967 /* Null-terminate the vector. */
3968 switches
[n_switches
].args
[j
] = 0;
3970 else if (strchr (switches_need_spaces
, c
))
3972 /* On some systems, ld cannot handle some options without
3973 a space. So split the option from its argument. */
3974 char *part1
= (char *) xmalloc (2);
3978 switches
[n_switches
].part1
= part1
;
3979 switches
[n_switches
].args
3980 = (const char **) xmalloc (2 * sizeof (const char *));
3981 switches
[n_switches
].args
[0] = xstrdup (p
+1);
3982 switches
[n_switches
].args
[1] = 0;
3985 switches
[n_switches
].args
= 0;
3987 switches
[n_switches
].live_cond
= SWITCH_OK
;
3988 switches
[n_switches
].validated
= 0;
3989 switches
[n_switches
].ordering
= 0;
3990 /* These are always valid, since gcc.c itself understands it. */
3991 if (!strcmp (p
, "save-temps")
3992 || !strcmp (p
, "static-libgcc")
3993 || !strcmp (p
, "shared-libgcc"))
3994 switches
[n_switches
].validated
= 1;
3997 char ch
= switches
[n_switches
].part1
[0];
3998 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3999 switches
[n_switches
].validated
= 1;
4005 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4006 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4009 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4011 perror_with_name (argv
[i
]);
4016 infiles
[n_infiles
].language
= spec_lang
;
4017 infiles
[n_infiles
++].name
= argv
[i
];
4022 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4023 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4025 /* Ensure we only invoke each subprocess once. */
4026 if (target_help_flag
|| print_help_list
)
4030 /* Create a dummy input file, so that we can pass --target-help on to
4031 the various sub-processes. */
4032 infiles
[0].language
= "c";
4033 infiles
[0].name
= "help-dummy";
4035 if (target_help_flag
)
4037 switches
[n_switches
].part1
= "--target-help";
4038 switches
[n_switches
].args
= 0;
4039 switches
[n_switches
].live_cond
= SWITCH_OK
;
4040 switches
[n_switches
].validated
= 0;
4045 if (print_help_list
)
4047 switches
[n_switches
].part1
= "--help";
4048 switches
[n_switches
].args
= 0;
4049 switches
[n_switches
].live_cond
= SWITCH_OK
;
4050 switches
[n_switches
].validated
= 0;
4056 switches
[n_switches
].part1
= 0;
4057 infiles
[n_infiles
].name
= 0;
4060 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
4061 and place that in the environment. */
4064 set_collect_gcc_options ()
4069 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4071 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4072 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4075 for (i
= 0; (int) i
< n_switches
; i
++)
4077 const char *const *args
;
4080 obstack_grow (&collect_obstack
, " ", 1);
4084 /* Ignore elided switches. */
4085 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4088 obstack_grow (&collect_obstack
, "'-", 2);
4089 q
= switches
[i
].part1
;
4090 while ((p
= strchr (q
, '\'')))
4092 obstack_grow (&collect_obstack
, q
, p
- q
);
4093 obstack_grow (&collect_obstack
, "'\\''", 4);
4096 obstack_grow (&collect_obstack
, q
, strlen (q
));
4097 obstack_grow (&collect_obstack
, "'", 1);
4099 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4101 obstack_grow (&collect_obstack
, " '", 2);
4103 while ((p
= strchr (q
, '\'')))
4105 obstack_grow (&collect_obstack
, q
, p
- q
);
4106 obstack_grow (&collect_obstack
, "'\\''", 4);
4109 obstack_grow (&collect_obstack
, q
, strlen (q
));
4110 obstack_grow (&collect_obstack
, "'", 1);
4113 obstack_grow (&collect_obstack
, "\0", 1);
4114 putenv (obstack_finish (&collect_obstack
));
4117 /* Process a spec string, accumulating and running commands. */
4119 /* These variables describe the input file name.
4120 input_file_number is the index on outfiles of this file,
4121 so that the output file name can be stored for later use by %o.
4122 input_basename is the start of the part of the input file
4123 sans all directory names, and basename_length is the number
4124 of characters starting there excluding the suffix .c or whatever. */
4126 const char *input_filename
;
4127 static int input_file_number
;
4128 size_t input_filename_length
;
4129 static int basename_length
;
4130 static int suffixed_basename_length
;
4131 static const char *input_basename
;
4132 static const char *input_suffix
;
4133 static struct stat input_stat
;
4134 static int input_stat_set
;
4136 /* The compiler used to process the current input file. */
4137 static struct compiler
*input_file_compiler
;
4139 /* These are variables used within do_spec and do_spec_1. */
4141 /* Nonzero if an arg has been started and not yet terminated
4142 (with space, tab or newline). */
4143 static int arg_going
;
4145 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4146 is a temporary file name. */
4147 static int delete_this_arg
;
4149 /* Nonzero means %w has been seen; the next arg to be terminated
4150 is the output file name of this compilation. */
4151 static int this_is_output_file
;
4153 /* Nonzero means %s has been seen; the next arg to be terminated
4154 is the name of a library file and we should try the standard
4155 search dirs for it. */
4156 static int this_is_library_file
;
4158 /* Nonzero means that the input of this command is coming from a pipe. */
4159 static int input_from_pipe
;
4161 /* Nonnull means substitute this for any suffix when outputting a switches
4163 static const char *suffix_subst
;
4165 /* Process the spec SPEC and run the commands specified therein.
4166 Returns 0 if the spec is successfully processed; -1 if failed. */
4176 delete_this_arg
= 0;
4177 this_is_output_file
= 0;
4178 this_is_library_file
= 0;
4179 input_from_pipe
= 0;
4180 suffix_subst
= NULL
;
4182 value
= do_spec_1 (spec
, 0, NULL
);
4184 /* Force out any unfinished command.
4185 If -pipe, this forces out the last command if it ended in `|'. */
4188 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4191 set_collect_gcc_options ();
4193 if (argbuf_index
> 0)
4200 /* Process the sub-spec SPEC as a portion of a larger spec.
4201 This is like processing a whole spec except that we do
4202 not initialize at the beginning and we do not supply a
4203 newline by default at the end.
4204 INSWITCH nonzero means don't process %-sequences in SPEC;
4205 in this case, % is treated as an ordinary character.
4206 This is used while substituting switches.
4207 INSWITCH nonzero also causes SPC not to terminate an argument.
4209 Value is zero unless a line was finished
4210 and the command on that line reported an error. */
4213 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4216 const char *soft_matched_part
;
4218 const char *p
= spec
;
4225 /* If substituting a switch, treat all chars like letters.
4226 Otherwise, NL, SPC, TAB and % are special. */
4227 switch (inswitch
? 'a' : c
)
4230 /* End of line: finish any pending argument,
4231 then run the pending command if one has been started. */
4234 obstack_1grow (&obstack
, 0);
4235 string
= obstack_finish (&obstack
);
4236 if (this_is_library_file
)
4237 string
= find_file (string
);
4238 store_arg (string
, delete_this_arg
, this_is_output_file
);
4239 if (this_is_output_file
)
4240 outfiles
[input_file_number
] = string
;
4244 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4246 for (i
= 0; i
< n_switches
; i
++)
4247 if (!strcmp (switches
[i
].part1
, "pipe"))
4250 /* A `|' before the newline means use a pipe here,
4251 but only if -pipe was specified.
4252 Otherwise, execute now and don't pass the `|' as an arg. */
4255 input_from_pipe
= 1;
4256 switches
[i
].validated
= 1;
4263 set_collect_gcc_options ();
4265 if (argbuf_index
> 0)
4271 /* Reinitialize for a new command, and for a new argument. */
4274 delete_this_arg
= 0;
4275 this_is_output_file
= 0;
4276 this_is_library_file
= 0;
4277 input_from_pipe
= 0;
4281 /* End any pending argument. */
4284 obstack_1grow (&obstack
, 0);
4285 string
= obstack_finish (&obstack
);
4286 if (this_is_library_file
)
4287 string
= find_file (string
);
4288 store_arg (string
, delete_this_arg
, this_is_output_file
);
4289 if (this_is_output_file
)
4290 outfiles
[input_file_number
] = string
;
4294 obstack_1grow (&obstack
, c
);
4300 /* Space or tab ends an argument if one is pending. */
4303 obstack_1grow (&obstack
, 0);
4304 string
= obstack_finish (&obstack
);
4305 if (this_is_library_file
)
4306 string
= find_file (string
);
4307 store_arg (string
, delete_this_arg
, this_is_output_file
);
4308 if (this_is_output_file
)
4309 outfiles
[input_file_number
] = string
;
4311 /* Reinitialize for a new argument. */
4313 delete_this_arg
= 0;
4314 this_is_output_file
= 0;
4315 this_is_library_file
= 0;
4322 fatal ("invalid specification! Bug in cc");
4325 obstack_grow (&obstack
, input_basename
, basename_length
);
4330 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4335 delete_this_arg
= 2;
4338 /* Dump out the directories specified with LIBRARY_PATH,
4339 followed by the absolute directories
4340 that we search for startfiles. */
4343 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4344 size_t bufsize
= 100;
4345 char *buffer
= (char *) xmalloc (bufsize
);
4348 for (; pl
; pl
= pl
->next
)
4350 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4351 /* Used on systems which record the specified -L dirs
4352 and use them to search for dynamic linking. */
4353 /* Relative directories always come from -B,
4354 and it is better not to use them for searching
4355 at run time. In particular, stage1 loses. */
4356 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4359 /* Try subdirectory if there is one. */
4360 if (multilib_dir
!= NULL
)
4364 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4366 bufsize
= (strlen (pl
->prefix
)
4367 + strlen (machine_suffix
)) * 2 + 1;
4368 buffer
= (char *) xrealloc (buffer
, bufsize
);
4369 strcpy (buffer
, pl
->prefix
);
4370 strcat (buffer
, machine_suffix
);
4371 if (is_directory (buffer
, multilib_dir
, 1))
4373 do_spec_1 ("-L", 0, NULL
);
4374 #ifdef SPACE_AFTER_L_OPTION
4375 do_spec_1 (" ", 0, NULL
);
4377 do_spec_1 (buffer
, 1, NULL
);
4378 do_spec_1 (multilib_dir
, 1, NULL
);
4379 /* Make this a separate argument. */
4380 do_spec_1 (" ", 0, NULL
);
4383 if (!pl
->require_machine_suffix
)
4385 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4387 do_spec_1 ("-L", 0, NULL
);
4388 #ifdef SPACE_AFTER_L_OPTION
4389 do_spec_1 (" ", 0, NULL
);
4391 do_spec_1 (pl
->prefix
, 1, NULL
);
4392 do_spec_1 (multilib_dir
, 1, NULL
);
4393 /* Make this a separate argument. */
4394 do_spec_1 (" ", 0, NULL
);
4400 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4402 do_spec_1 ("-L", 0, NULL
);
4403 #ifdef SPACE_AFTER_L_OPTION
4404 do_spec_1 (" ", 0, NULL
);
4406 do_spec_1 (pl
->prefix
, 1, NULL
);
4407 /* Remove slash from machine_suffix. */
4408 if (strlen (machine_suffix
) >= bufsize
)
4409 bufsize
= strlen (machine_suffix
) * 2 + 1;
4410 buffer
= (char *) xrealloc (buffer
, bufsize
);
4411 strcpy (buffer
, machine_suffix
);
4412 idx
= strlen (buffer
);
4413 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4414 buffer
[idx
- 1] = 0;
4415 do_spec_1 (buffer
, 1, NULL
);
4416 /* Make this a separate argument. */
4417 do_spec_1 (" ", 0, NULL
);
4420 if (!pl
->require_machine_suffix
)
4422 if (is_directory (pl
->prefix
, "", 1))
4424 do_spec_1 ("-L", 0, NULL
);
4425 #ifdef SPACE_AFTER_L_OPTION
4426 do_spec_1 (" ", 0, NULL
);
4428 /* Remove slash from pl->prefix. */
4429 if (strlen (pl
->prefix
) >= bufsize
)
4430 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4431 buffer
= (char *) xrealloc (buffer
, bufsize
);
4432 strcpy (buffer
, pl
->prefix
);
4433 idx
= strlen (buffer
);
4434 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4435 buffer
[idx
- 1] = 0;
4436 do_spec_1 (buffer
, 1, NULL
);
4437 /* Make this a separate argument. */
4438 do_spec_1 (" ", 0, NULL
);
4447 /* %efoo means report an error with `foo' as error message
4448 and don't execute any more commands for this file. */
4452 while (*p
!= 0 && *p
!= '\n')
4454 buf
= (char *) alloca (p
- q
+ 1);
4455 strncpy (buf
, q
, p
- q
);
4462 /* %nfoo means report an notice with `foo' on stderr. */
4466 while (*p
!= 0 && *p
!= '\n')
4468 buf
= (char *) alloca (p
- q
+ 1);
4469 strncpy (buf
, q
, p
- q
);
4471 notice ("%s\n", buf
);
4481 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4482 and it is not a directory, and it is writable, use it.
4483 Otherwise, fall through and treat this like any other
4486 if ((!save_temps_flag
)
4487 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4488 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4490 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4491 strlen (HOST_BIT_BUCKET
));
4492 delete_this_arg
= 0;
4501 struct temp_name
*t
;
4503 const char *suffix
= p
;
4504 char *saved_suffix
= NULL
;
4506 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4508 suffix_length
= p
- suffix
;
4509 if (p
[0] == '%' && p
[1] == 'O')
4512 /* We don't support extra suffix characters after %O. */
4513 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4515 if (suffix_length
== 0)
4516 suffix
= TARGET_OBJECT_SUFFIX
;
4520 = (char *) xmalloc (suffix_length
4521 + strlen (TARGET_OBJECT_SUFFIX
));
4522 strncpy (saved_suffix
, suffix
, suffix_length
);
4523 strcpy (saved_suffix
+ suffix_length
,
4524 TARGET_OBJECT_SUFFIX
);
4526 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4529 /* If the input_filename has the same suffix specified
4530 for the %g, %u, or %U, and -save-temps is specified,
4531 we could end up using that file as an intermediate
4532 thus clobbering the user's source file (.e.g.,
4533 gcc -save-temps foo.s would clobber foo.s with the
4534 output of cpp0). So check for this condition and
4535 generate a temp file as the intermediate. */
4537 if (save_temps_flag
)
4539 temp_filename_length
= basename_length
+ suffix_length
;
4540 temp_filename
= alloca (temp_filename_length
+ 1);
4541 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4542 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4544 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4545 if (strcmp (temp_filename
, input_filename
) != 0)
4547 struct stat st_temp
;
4549 /* Note, set_input() resets input_stat_set to 0. */
4550 if (input_stat_set
== 0)
4552 input_stat_set
= stat (input_filename
, &input_stat
);
4553 if (input_stat_set
>= 0)
4557 /* If we have the stat for the input_filename
4558 and we can do the stat for the temp_filename
4559 then the they could still refer to the same
4560 file if st_dev/st_ino's are the same. */
4562 if (input_stat_set
!= 1
4563 || stat (temp_filename
, &st_temp
) < 0
4564 || input_stat
.st_dev
!= st_temp
.st_dev
4565 || input_stat
.st_ino
!= st_temp
.st_ino
)
4567 temp_filename
= save_string (temp_filename
,
4568 temp_filename_length
+ 1);
4569 obstack_grow (&obstack
, temp_filename
,
4570 temp_filename_length
);
4577 /* See if we already have an association of %g/%u/%U and
4579 for (t
= temp_names
; t
; t
= t
->next
)
4580 if (t
->length
== suffix_length
4581 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4582 && t
->unique
== (c
!= 'g'))
4585 /* Make a new association if needed. %u and %j
4587 if (t
== 0 || c
== 'u' || c
== 'j')
4591 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4592 t
->next
= temp_names
;
4595 t
->length
= suffix_length
;
4598 t
->suffix
= saved_suffix
;
4599 saved_suffix
= NULL
;
4602 t
->suffix
= save_string (suffix
, suffix_length
);
4603 t
->unique
= (c
!= 'g');
4604 temp_filename
= make_temp_file (t
->suffix
);
4605 temp_filename_length
= strlen (temp_filename
);
4606 t
->filename
= temp_filename
;
4607 t
->filename_length
= temp_filename_length
;
4611 free (saved_suffix
);
4613 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4614 delete_this_arg
= 1;
4620 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4626 struct prefix_list
*pl
= include_prefixes
.plist
;
4628 if (gcc_exec_prefix
)
4630 do_spec_1 ("-iprefix", 1, NULL
);
4631 /* Make this a separate argument. */
4632 do_spec_1 (" ", 0, NULL
);
4633 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4634 do_spec_1 (" ", 0, NULL
);
4637 for (; pl
; pl
= pl
->next
)
4639 do_spec_1 ("-isystem", 1, NULL
);
4640 /* Make this a separate argument. */
4641 do_spec_1 (" ", 0, NULL
);
4642 do_spec_1 (pl
->prefix
, 1, NULL
);
4643 do_spec_1 (" ", 0, NULL
);
4650 int max
= n_infiles
;
4651 max
+= lang_specific_extra_outfiles
;
4653 for (i
= 0; i
< max
; i
++)
4655 store_arg (outfiles
[i
], 0, 0);
4660 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4665 this_is_library_file
= 1;
4669 this_is_output_file
= 1;
4674 int cur_index
= argbuf_index
;
4675 /* Handle the {...} following the %W. */
4678 p
= handle_braces (p
+ 1);
4681 /* If any args were output, mark the last one for deletion
4683 if (argbuf_index
!= cur_index
)
4684 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4688 /* %x{OPTION} records OPTION for %X to output. */
4694 /* Skip past the option value and make a copy. */
4699 string
= save_string (p1
+ 1, p
- p1
- 2);
4701 /* See if we already recorded this option. */
4702 for (i
= 0; i
< n_linker_options
; i
++)
4703 if (! strcmp (string
, linker_options
[i
]))
4709 /* This option is new; add it. */
4710 add_linker_option (string
, strlen (string
));
4714 /* Dump out the options accumulated previously using %x. */
4716 for (i
= 0; i
< n_linker_options
; i
++)
4718 do_spec_1 (linker_options
[i
], 1, NULL
);
4719 /* Make each accumulated option a separate argument. */
4720 do_spec_1 (" ", 0, NULL
);
4724 /* Dump out the options accumulated previously using -Wa,. */
4726 for (i
= 0; i
< n_assembler_options
; i
++)
4728 do_spec_1 (assembler_options
[i
], 1, NULL
);
4729 /* Make each accumulated option a separate argument. */
4730 do_spec_1 (" ", 0, NULL
);
4734 /* Dump out the options accumulated previously using -Wp,. */
4736 for (i
= 0; i
< n_preprocessor_options
; i
++)
4738 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4739 /* Make each accumulated option a separate argument. */
4740 do_spec_1 (" ", 0, NULL
);
4744 /* Here are digits and numbers that just process
4745 a certain constant string as a spec. */
4748 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4754 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4760 value
= do_spec_1 (asm_spec
, 0, NULL
);
4766 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4772 value
= do_spec_1 (signed_char_spec
, 0, NULL
);
4779 const char *const spec
4780 = (input_file_compiler
->cpp_spec
4781 ? input_file_compiler
->cpp_spec
4783 value
= do_spec_1 (spec
, 0, NULL
);
4790 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4796 value
= do_spec_1 (link_spec
, 0, NULL
);
4802 value
= do_spec_1 (lib_spec
, 0, NULL
);
4808 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4814 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4820 len
= strlen (multilib_dir
);
4821 obstack_blank (&obstack
, len
+ 1);
4822 p
= obstack_next_free (&obstack
) - (len
+ 1);
4825 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4826 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4832 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4836 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4840 if (! strncmp (y
, "-D", 2))
4841 /* Copy the whole option. */
4842 while (*y
&& *y
!= ' ' && *y
!= '\t')
4844 else if (*y
== ' ' || *y
== '\t')
4845 /* Copy whitespace to the result. */
4847 /* Don't copy other options. */
4854 value
= do_spec_1 (buf
, 0, NULL
);
4862 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4866 /* Copy all of CPP_PREDEFINES into BUF,
4867 but force them all into the reserved name space if they
4868 aren't already there. The reserved name space is all
4869 identifiers beginning with two underscores or with one
4870 underscore and a capital letter. We do the forcing by
4871 adding up to two underscores to the beginning and end
4872 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4877 if (! strncmp (y
, "-D", 2))
4886 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4888 /* Stick __ at front of macro name. */
4892 /* Arrange to stick __ at the end as well. */
4896 /* Copy the macro name. */
4897 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4910 /* Copy the value given, if any. */
4911 while (*y
&& *y
!= ' ' && *y
!= '\t')
4914 else if (*y
== ' ' || *y
== '\t')
4915 /* Copy whitespace to the result. */
4917 /* Don't copy -A options */
4923 /* Copy all of CPP_PREDEFINES into BUF,
4924 but put __ after every -D. */
4928 if (! strncmp (y
, "-D", 2))
4934 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4936 /* Stick -D__ at front of macro name. */
4943 /* Copy the macro name. */
4944 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4947 /* Copy the value given, if any. */
4948 while (*y
&& *y
!= ' ' && *y
!= '\t')
4953 /* Do not copy this macro - we have just done it before */
4954 while (*y
&& *y
!= ' ' && *y
!= '\t')
4958 else if (*y
== ' ' || *y
== '\t')
4959 /* Copy whitespace to the result. */
4961 /* Don't copy -A options. */
4967 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4971 if (! strncmp (y
, "-A", 2))
4972 /* Copy the whole option. */
4973 while (*y
&& *y
!= ' ' && *y
!= '\t')
4975 else if (*y
== ' ' || *y
== '\t')
4976 /* Copy whitespace to the result. */
4978 /* Don't copy other options. */
4985 value
= do_spec_1 (buf
, 0, NULL
);
4992 value
= do_spec_1 (startfile_spec
, 0, NULL
);
4997 /* Here we define characters other than letters and digits. */
5000 p
= handle_braces (p
);
5006 obstack_1grow (&obstack
, '%');
5013 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5015 suffix_subst
= save_string (p
- 1, len
+ 1);
5021 if (soft_matched_part
)
5023 do_spec_1 (soft_matched_part
, 1, NULL
);
5024 do_spec_1 (" ", 0, NULL
);
5027 /* Catch the case where a spec string contains something like
5028 '%{foo:%*}'. ie there is no * in the pattern on the left
5029 hand side of the :. */
5030 error ("spec failure: '%%*' has not been initialized by pattern match");
5033 /* Process a string found as the value of a spec given by name.
5034 This feature allows individual machine descriptions
5035 to add and use their own specs.
5036 %[...] modifies -D options the way %P does;
5037 %(...) uses the spec unmodified. */
5039 error ("warning: use of obsolete %%[ operator in specs");
5042 const char *name
= p
;
5043 struct spec_list
*sl
;
5046 /* The string after the S/P is the name of a spec that is to be
5048 while (*p
&& *p
!= ')' && *p
!= ']')
5051 /* See if it's in the list. */
5052 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5053 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5055 name
= *(sl
->ptr_spec
);
5057 notice ("Processing spec %c%s%c, which is '%s'\n",
5058 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5067 value
= do_spec_1 (name
, 0, NULL
);
5073 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5075 const char *y
= name
;
5078 /* Copy all of NAME into BUF, but put __ after
5079 every -D and at the end of each arg. */
5082 if (! strncmp (y
, "-D", 2))
5093 && (*y
== ' ' || *y
== '\t' || *y
== '='
5094 || *y
== '}' || *y
== 0))
5107 value
= do_spec_1 (buf
, 0, NULL
);
5113 /* Discard the closing paren or bracket. */
5121 int c1
= *p
++; /* Select first or second version number. */
5122 const char *v
= compiler_version
;
5124 static const char zeroc
= '0';
5126 /* The format of the version string is
5127 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5129 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5130 while (! ISDIGIT (*v
))
5132 if (v
> compiler_version
&& v
[-1] != '-')
5135 /* If desired, advance to second version number. */
5138 /* Set V after the first period. */
5139 while (ISDIGIT (*v
))
5146 /* If desired, advance to third version number.
5147 But don't complain if it's not present */
5150 /* Set V after the second period. */
5151 while (ISDIGIT (*v
))
5153 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5159 /* Set Q at the next period or at the end. */
5161 while (ISDIGIT (*q
))
5163 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5167 /* Put that part into the command. */
5168 obstack_grow (&obstack
, v
, q
- v
);
5170 /* Default to "0" */
5171 obstack_grow (&obstack
, &zeroc
, 1);
5177 if (input_from_pipe
)
5178 do_spec_1 ("-", 0, NULL
);
5182 error ("spec failure: unrecognized spec option '%c'", c
);
5188 /* Backslash: treat next character as ordinary. */
5193 /* Ordinary character: put it into the current argument. */
5194 obstack_1grow (&obstack
, c
);
5198 /* End of string. */
5202 /* Return 0 if we call do_spec_1 and that returns -1. */
5208 const char *filter
, *body
= NULL
, *endbody
= NULL
;
5210 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5213 int include_blanks
= 1;
5214 int elide_switch
= 0;
5219 /* A '^' after the open-brace means to not give blanks before args. */
5226 /* A `|' after the open-brace means,
5227 if the test fails, output a single minus sign rather than nothing.
5228 This is used in %{|!pipe:...}. */
5235 /* A `<' after the open-brace means that the switch should be
5236 removed from the command-line. */
5242 negate
= suffix
= 0;
5245 /* A `!' after the open-brace negates the condition:
5246 succeed if the specified switch is not present. */
5250 /* A `.' after the open-brace means test against the current suffix. */
5259 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
5261 /* It doesn't make sense to mix elision with other flags. We
5262 could fatal() here, but the standard seems to be to abort. */
5268 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5271 if (*p
== '|' && (pipe_p
|| ordered
))
5276 if (*p
!= '}' && *p
!= '&')
5292 fatal ("mismatched braces in specs");
5298 body
= p
, endbody
= p
+ 1;
5303 int found
= (input_suffix
!= 0
5304 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5305 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5311 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5314 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5316 /* Substitute all matching switches as separate args. */
5319 for (i
= 0; i
< n_switches
; i
++)
5320 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5321 && check_live_switch (i
, p
- 1 - filter
))
5325 switches
[i
].live_cond
= SWITCH_IGNORE
;
5326 switches
[i
].validated
= 1;
5329 ordered
= 1, switches
[i
].ordering
= 1;
5334 /* Test for presence of the specified switch. */
5338 /* If name specified ends in *, as in {x*:...},
5339 check for %* and handle that case. */
5340 if (p
[-1] == '*' && !negate
)
5343 const char *r
= body
;
5345 /* First see whether we have %*. */
5349 if (*r
== '%' && r
[1] == '*')
5353 /* If we do, handle that case. */
5356 /* Substitute all matching switches as separate args.
5357 But do this by substituting for %*
5358 in the text that follows the colon. */
5360 unsigned hard_match_len
= p
- filter
- 1;
5361 char *string
= save_string (body
, endbody
- body
- 1);
5363 for (i
= 0; i
< n_switches
; i
++)
5364 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5365 && check_live_switch (i
, -1))
5367 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5368 /* Pass any arguments this switch has. */
5369 give_switch (i
, 1, 1);
5370 suffix_subst
= NULL
;
5373 /* We didn't match. Try again. */
5380 /* If name specified ends in *, as in {x*:...},
5381 check for presence of any switch name starting with x. */
5384 for (i
= 0; i
< n_switches
; i
++)
5386 unsigned hard_match_len
= p
- filter
- 1;
5388 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5389 && check_live_switch (i
, hard_match_len
))
5396 /* Otherwise, check for presence of exact name specified. */
5399 for (i
= 0; i
< n_switches
; i
++)
5401 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5402 && switches
[i
].part1
[p
- filter
] == 0
5403 && check_live_switch (i
, -1))
5411 /* If it is as desired (present for %{s...}, absent for %{!s...})
5412 then substitute either the switch or the specified
5413 conditional text. */
5414 if (present
!= negate
)
5418 switches
[i
].live_cond
= SWITCH_IGNORE
;
5419 switches
[i
].validated
= 1;
5421 else if (ordered
|| *p
== '&')
5422 ordered
= 1, switches
[i
].ordering
= 1;
5424 give_switch (i
, 0, include_blanks
);
5426 /* Even if many alternatives are matched, only output once. */
5431 /* Here if a %{|...} conditional fails: output a minus sign,
5432 which means "standard output" or "standard input". */
5433 do_spec_1 ("-", 0, NULL
);
5438 /* We didn't match; try again. */
5445 goto next_ampersand
;
5451 /* Doing this set of switches later preserves their command-line
5452 ordering. This is needed for e.g. -U, -D and -A. */
5453 for (i
= 0; i
< n_switches
; i
++)
5454 if (switches
[i
].ordering
== 1)
5456 switches
[i
].ordering
= 0;
5457 give_switch (i
, 0, include_blanks
);
5460 /* Process the spec just once, regardless of match count. */
5463 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5471 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5472 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5473 spec, or -1 if either exact match or %* is used.
5475 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5476 whose value does not begin with "no-" is obsoleted by the same value
5477 with the "no-", similarly for a switch with the "no-" prefix. */
5480 check_live_switch (switchnum
, prefix_length
)
5484 const char *name
= switches
[switchnum
].part1
;
5487 /* In the common case of {<at-most-one-letter>*}, a negating
5488 switch would always match, so ignore that case. We will just
5489 send the conflicting switches to the compiler phase. */
5490 if (prefix_length
>= 0 && prefix_length
<= 1)
5493 /* If we already processed this switch and determined if it was
5494 live or not, return our past determination. */
5495 if (switches
[switchnum
].live_cond
!= 0)
5496 return switches
[switchnum
].live_cond
> 0;
5498 /* Now search for duplicate in a manner that depends on the name. */
5502 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5503 if (switches
[i
].part1
[0] == 'O')
5505 switches
[switchnum
].validated
= 1;
5506 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5511 case 'W': case 'f': case 'm':
5512 if (! strncmp (name
+ 1, "no-", 3))
5514 /* We have Xno-YYY, search for XYYY. */
5515 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5516 if (switches
[i
].part1
[0] == name
[0]
5517 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5519 switches
[switchnum
].validated
= 1;
5520 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5526 /* We have XYYY, search for Xno-YYY. */
5527 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5528 if (switches
[i
].part1
[0] == name
[0]
5529 && switches
[i
].part1
[1] == 'n'
5530 && switches
[i
].part1
[2] == 'o'
5531 && switches
[i
].part1
[3] == '-'
5532 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5534 switches
[switchnum
].validated
= 1;
5535 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5542 /* Otherwise the switch is live. */
5543 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5547 /* Pass a switch to the current accumulating command
5548 in the same form that we received it.
5549 SWITCHNUM identifies the switch; it is an index into
5550 the vector of switches gcc received, which is `switches'.
5551 This cannot fail since it never finishes a command line.
5553 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5555 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5559 give_switch (switchnum
, omit_first_word
, include_blanks
)
5561 int omit_first_word
;
5564 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5567 if (!omit_first_word
)
5569 do_spec_1 ("-", 0, NULL
);
5570 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5573 if (switches
[switchnum
].args
!= 0)
5576 for (p
= switches
[switchnum
].args
; *p
; p
++)
5578 const char *arg
= *p
;
5581 do_spec_1 (" ", 0, NULL
);
5584 unsigned length
= strlen (arg
);
5587 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5588 if (arg
[length
] == '.')
5590 ((char *)arg
)[length
] = 0;
5594 do_spec_1 (arg
, 1, NULL
);
5596 ((char *)arg
)[length
] = '.';
5597 do_spec_1 (suffix_subst
, 1, NULL
);
5600 do_spec_1 (arg
, 1, NULL
);
5604 do_spec_1 (" ", 0, NULL
);
5605 switches
[switchnum
].validated
= 1;
5608 /* Search for a file named NAME trying various prefixes including the
5609 user's -B prefix and some standard ones.
5610 Return the absolute file name found. If nothing is found, return NAME. */
5618 /* Try multilib_dir if it is defined. */
5619 if (multilib_dir
!= NULL
)
5621 const char *const try = ACONCAT ((multilib_dir
, dir_separator_str
, name
, NULL
));
5623 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5625 /* If we don't find it in the multi library dir, then fall
5626 through and look for it in the normal places. */
5627 if (newname
!= NULL
)
5631 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5632 return newname
? newname
: name
;
5635 /* Determine whether a directory exists. If LINKER, return 0 for
5636 certain fixed names not needed by the linker. If not LINKER, it is
5637 only important to return 0 if the host machine has a small ARG_MAX
5641 is_directory (path1
, path2
, linker
)
5646 int len1
= strlen (path1
);
5647 int len2
= strlen (path2
);
5648 char *path
= (char *) alloca (3 + len1
+ len2
);
5652 #ifndef SMALL_ARG_MAX
5657 /* Construct the path from the two parts. Ensure the string ends with "/.".
5658 The resulting path will be a directory even if the given path is a
5660 memcpy (path
, path1
, len1
);
5661 memcpy (path
+ len1
, path2
, len2
);
5662 cp
= path
+ len1
+ len2
;
5663 if (!IS_DIR_SEPARATOR (cp
[-1]))
5664 *cp
++ = DIR_SEPARATOR
;
5668 /* Exclude directories that the linker is known to search. */
5671 && strcmp (path
, concat (dir_separator_str
, "lib",
5672 dir_separator_str
, ".", NULL
)) == 0)
5674 && strcmp (path
, concat (dir_separator_str
, "usr",
5675 dir_separator_str
, "lib",
5676 dir_separator_str
, ".", NULL
)) == 0)))
5679 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5682 /* Set up the various global variables to indicate that we're processing
5683 the input file named FILENAME. */
5686 set_input (filename
)
5687 const char *filename
;
5691 input_filename
= filename
;
5692 input_filename_length
= strlen (input_filename
);
5694 input_basename
= input_filename
;
5695 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5696 /* Skip drive name so 'x:foo' is handled properly. */
5697 if (input_basename
[1] == ':')
5698 input_basename
+= 2;
5700 for (p
= input_basename
; *p
; p
++)
5701 if (IS_DIR_SEPARATOR (*p
))
5702 input_basename
= p
+ 1;
5704 /* Find a suffix starting with the last period,
5705 and set basename_length to exclude that suffix. */
5706 basename_length
= strlen (input_basename
);
5707 suffixed_basename_length
= basename_length
;
5708 p
= input_basename
+ basename_length
;
5709 while (p
!= input_basename
&& *p
!= '.')
5711 if (*p
== '.' && p
!= input_basename
)
5713 basename_length
= p
- input_basename
;
5714 input_suffix
= p
+ 1;
5719 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5720 we will need to do a stat on the input_filename. The
5721 INPUT_STAT_SET signals that the stat is needed. */
5725 /* On fatal signals, delete all the temporary files. */
5728 fatal_error (signum
)
5731 signal (signum
, SIG_DFL
);
5732 delete_failure_queue ();
5733 delete_temp_files ();
5734 /* Get the same signal again, this time not handled,
5735 so its normal effect occurs. */
5736 kill (getpid (), signum
);
5739 extern int main
PARAMS ((int, const char *const *));
5744 const char *const *argv
;
5748 int linker_was_run
= 0;
5749 char *explicit_link_files
;
5752 struct user_specs
*uptr
;
5754 p
= argv
[0] + strlen (argv
[0]);
5755 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5759 xmalloc_set_program_name (programname
);
5761 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5762 /* Perform host dependent initialization when needed. */
5763 GCC_DRIVER_HOST_INITIALIZATION
;
5766 gcc_init_libintl ();
5768 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5769 signal (SIGINT
, fatal_error
);
5771 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5772 signal (SIGHUP
, fatal_error
);
5774 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5775 signal (SIGTERM
, fatal_error
);
5777 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5778 signal (SIGPIPE
, fatal_error
);
5781 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5782 receive the signal. A different setting is inheritable */
5783 signal (SIGCHLD
, SIG_DFL
);
5787 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5789 obstack_init (&obstack
);
5791 /* Build multilib_select, et. al from the separate lines that make up each
5792 multilib selection. */
5794 const char *const *q
= multilib_raw
;
5797 obstack_init (&multilib_obstack
);
5798 while ((p
= *q
++) != (char *) 0)
5799 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5801 obstack_1grow (&multilib_obstack
, 0);
5802 multilib_select
= obstack_finish (&multilib_obstack
);
5804 q
= multilib_matches_raw
;
5805 while ((p
= *q
++) != (char *) 0)
5806 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5808 obstack_1grow (&multilib_obstack
, 0);
5809 multilib_matches
= obstack_finish (&multilib_obstack
);
5811 q
= multilib_exclusions_raw
;
5812 while ((p
= *q
++) != (char *) 0)
5813 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5815 obstack_1grow (&multilib_obstack
, 0);
5816 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5819 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5822 obstack_1grow (&multilib_obstack
, ' ');
5823 obstack_grow (&multilib_obstack
,
5824 multilib_defaults_raw
[i
],
5825 strlen (multilib_defaults_raw
[i
]));
5829 obstack_1grow (&multilib_obstack
, 0);
5830 multilib_defaults
= obstack_finish (&multilib_obstack
);
5833 /* Set up to remember the pathname of gcc and any options
5834 needed for collect. We use argv[0] instead of programname because
5835 we need the complete pathname. */
5836 obstack_init (&collect_obstack
);
5837 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5838 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5839 putenv (obstack_finish (&collect_obstack
));
5841 #ifdef INIT_ENVIRONMENT
5842 /* Set up any other necessary machine specific environment variables. */
5843 putenv (INIT_ENVIRONMENT
);
5846 /* Make a table of what switches there are (switches, n_switches).
5847 Make a table of specified input files (infiles, n_infiles).
5848 Decode switches that are handled locally. */
5850 process_command (argc
, argv
);
5852 /* Initialize the vector of specs to just the default.
5853 This means one element containing 0s, as a terminator. */
5855 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5856 memcpy ((char *) compilers
, (char *) default_compilers
,
5857 sizeof default_compilers
);
5858 n_compilers
= n_default_compilers
;
5860 /* Read specs from a file if there is one. */
5862 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5863 spec_version
, dir_separator_str
, NULL
);
5864 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5866 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5867 /* Read the specs file unless it is a default one. */
5868 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5869 read_specs (specs_file
, TRUE
);
5873 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5874 for any override of as, ld and libraries. */
5875 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5876 + strlen (just_machine_suffix
)
5877 + sizeof ("specs"));
5879 strcpy (specs_file
, standard_exec_prefix
);
5880 strcat (specs_file
, just_machine_suffix
);
5881 strcat (specs_file
, "specs");
5882 if (access (specs_file
, R_OK
) == 0)
5883 read_specs (specs_file
, TRUE
);
5885 /* If not cross-compiling, look for startfiles in the standard places. */
5886 if (*cross_compile
== '0')
5888 if (*md_exec_prefix
)
5890 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5891 PREFIX_PRIORITY_LAST
, 0, NULL
);
5892 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5893 PREFIX_PRIORITY_LAST
, 0, NULL
);
5896 if (*md_startfile_prefix
)
5897 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5898 PREFIX_PRIORITY_LAST
, 0, NULL
);
5900 if (*md_startfile_prefix_1
)
5901 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5902 PREFIX_PRIORITY_LAST
, 0, NULL
);
5904 /* If standard_startfile_prefix is relative, base it on
5905 standard_exec_prefix. This lets us move the installed tree
5906 as a unit. If GCC_EXEC_PREFIX is defined, base
5907 standard_startfile_prefix on that as well. */
5908 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5909 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5910 PREFIX_PRIORITY_LAST
, 0, NULL
);
5913 if (gcc_exec_prefix
)
5914 add_prefix (&startfile_prefixes
,
5915 concat (gcc_exec_prefix
, machine_suffix
,
5916 standard_startfile_prefix
, NULL
),
5917 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5918 add_prefix (&startfile_prefixes
,
5919 concat (standard_exec_prefix
,
5921 standard_startfile_prefix
, NULL
),
5922 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5925 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5926 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5927 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5928 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5929 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5930 add_prefix (&startfile_prefixes
, "./", NULL
,
5931 PREFIX_PRIORITY_LAST
, 1, NULL
);
5936 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5938 add_prefix (&startfile_prefixes
,
5939 concat (gcc_exec_prefix
, machine_suffix
,
5940 standard_startfile_prefix
, NULL
),
5941 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5944 /* Process any user specified specs in the order given on the command
5946 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5948 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5949 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5952 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5953 if (gcc_exec_prefix
)
5954 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
5955 spec_version
, dir_separator_str
, NULL
);
5957 /* Now we have the specs.
5958 Set the `valid' bits for switches that match anything in any spec. */
5960 validate_all_switches ();
5962 /* Now that we have the switches and the specs, set
5963 the subdirectory based on the options. */
5964 set_multilib_dir ();
5966 /* Warn about any switches that no pass was interested in. */
5968 for (i
= 0; (int) i
< n_switches
; i
++)
5969 if (! switches
[i
].validated
)
5970 error ("unrecognized option `-%s'", switches
[i
].part1
);
5972 /* Obey some of the options. */
5974 if (print_search_dirs
)
5976 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5977 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5978 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
5982 if (print_file_name
)
5984 printf ("%s\n", find_file (print_file_name
));
5988 if (print_prog_name
)
5990 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5991 printf ("%s\n", (newname
? newname
: print_prog_name
));
5995 if (print_multi_lib
)
5997 print_multilib_info ();
6001 if (print_multi_directory
)
6003 if (multilib_dir
== NULL
)
6006 printf ("%s\n", multilib_dir
);
6010 if (target_help_flag
)
6012 /* Print if any target specific options.*/
6014 /* We do not exit here. Instead we have created a fake input file
6015 called 'target-dummy' which needs to be compiled, and we pass this
6016 on to the various sub-processes, along with the --target-help
6020 if (print_help_list
)
6026 printf (_("\nFor bug reporting instructions, please see:\n"));
6027 printf ("%s.\n", GCCBUGURL
);
6032 /* We do not exit here. Instead we have created a fake input file
6033 called 'help-dummy' which needs to be compiled, and we pass this
6034 on the various sub-processes, along with the --help switch. */
6042 notice ("Configured with: %s\n", configuration_arguments
);
6044 #ifdef THREAD_MODEL_SPEC
6045 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6046 but there's no point in doing all this processing just to get
6047 thread_model back. */
6048 obstack_init (&obstack
);
6049 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6050 obstack_1grow (&obstack
, '\0');
6051 thrmod
= obstack_finish (&obstack
);
6053 thrmod
= thread_model
;
6056 notice ("Thread model: %s\n", thrmod
);
6058 /* compiler_version is truncated at the first space when initialized
6059 from version string, so truncate version_string at the first space
6060 before comparing. */
6061 for (n
= 0; version_string
[n
]; n
++)
6062 if (version_string
[n
] == ' ')
6065 if (! strncmp (version_string
, compiler_version
, n
)
6066 && compiler_version
[n
] == 0)
6067 notice ("gcc version %s\n", version_string
);
6069 notice ("gcc driver version %s executing gcc version %s\n",
6070 version_string
, compiler_version
);
6076 if (n_infiles
== added_libraries
)
6077 fatal ("no input files");
6079 /* Make a place to record the compiler output file names
6080 that correspond to the input files. */
6083 i
+= lang_specific_extra_outfiles
;
6084 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6086 /* Record which files were specified explicitly as link input. */
6088 explicit_link_files
= xcalloc (1, n_infiles
);
6090 for (i
= 0; (int) i
< n_infiles
; i
++)
6092 int this_file_error
= 0;
6094 /* Tell do_spec what to substitute for %i. */
6096 input_file_number
= i
;
6097 set_input (infiles
[i
].name
);
6099 /* Use the same thing in %o, unless cp->spec says otherwise. */
6101 outfiles
[i
] = input_filename
;
6103 /* Figure out which compiler from the file's suffix. */
6106 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6107 infiles
[i
].language
);
6109 if (input_file_compiler
)
6111 /* Ok, we found an applicable compiler. Run its spec. */
6113 if (input_file_compiler
->spec
[0] == '#')
6115 error ("%s: %s compiler not installed on this system",
6116 input_filename
, &input_file_compiler
->spec
[1]);
6117 this_file_error
= 1;
6121 value
= do_spec (input_file_compiler
->spec
);
6123 this_file_error
= 1;
6127 /* If this file's name does not contain a recognized suffix,
6128 record it as explicit linker input. */
6131 explicit_link_files
[i
] = 1;
6133 /* Clear the delete-on-failure queue, deleting the files in it
6134 if this compilation failed. */
6136 if (this_file_error
)
6138 delete_failure_queue ();
6141 /* If this compilation succeeded, don't delete those files later. */
6142 clear_failure_queue ();
6145 /* Reset the output file name to the first input file name, for use
6146 with %b in LINK_SPEC on a target that prefers not to emit a.out
6149 set_input (infiles
[0].name
);
6151 if (error_count
== 0)
6153 /* Make sure INPUT_FILE_NUMBER points to first available open
6155 input_file_number
= n_infiles
;
6156 if (lang_specific_pre_link ())
6160 /* Run ld to link all the compiler output files. */
6162 if (error_count
== 0)
6164 int tmp
= execution_count
;
6166 /* We'll use ld if we can't find collect2. */
6167 if (! strcmp (linker_name_spec
, "collect2"))
6169 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
6171 linker_name_spec
= "ld";
6173 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6175 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6176 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6178 value
= do_spec (link_command_spec
);
6181 linker_was_run
= (tmp
!= execution_count
);
6184 /* If options said don't run linker,
6185 complain about input files to be given to the linker. */
6187 if (! linker_was_run
&& error_count
== 0)
6188 for (i
= 0; (int) i
< n_infiles
; i
++)
6189 if (explicit_link_files
[i
])
6190 error ("%s: linker input file unused because linking not done",
6193 /* Delete some or all of the temporary files we made. */
6196 delete_failure_queue ();
6197 delete_temp_files ();
6199 if (print_help_list
)
6201 printf (("\nFor bug reporting instructions, please see:\n"));
6202 printf ("%s\n", GCCBUGURL
);
6205 return (signal_count
!= 0 ? 2
6206 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6210 /* Find the proper compilation spec for the file name NAME,
6211 whose length is LENGTH. LANGUAGE is the specified language,
6212 or 0 if this file is to be passed to the linker. */
6214 static struct compiler
*
6215 lookup_compiler (name
, length
, language
)
6218 const char *language
;
6220 struct compiler
*cp
;
6222 /* If this was specified by the user to be a linker input, indicate that. */
6223 if (language
!= 0 && language
[0] == '*')
6226 /* Otherwise, look for the language, if one is spec'd. */
6229 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6230 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6233 error ("language %s not recognized", language
);
6237 /* Look for a suffix. */
6238 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6240 if (/* The suffix `-' matches only the file name `-'. */
6241 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6242 || (strlen (cp
->suffix
) < length
6243 /* See if the suffix matches the end of NAME. */
6244 && !strcmp (cp
->suffix
,
6245 name
+ length
- strlen (cp
->suffix
))
6250 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6251 /* look again, but case-insensitively this time. */
6253 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6255 if (/* The suffix `-' matches only the file name `-'. */
6256 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6257 || (strlen (cp
->suffix
) < length
6258 /* See if the suffix matches the end of NAME. */
6259 && ((!strcmp (cp
->suffix
,
6260 name
+ length
- strlen (cp
->suffix
))
6261 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6262 && !strcasecmp (cp
->suffix
,
6263 name
+ length
- strlen (cp
->suffix
)))
6269 if (cp
>= compilers
)
6271 if (cp
->spec
[0] != '@')
6272 /* A non-alias entry: return it. */
6275 /* An alias entry maps a suffix to a language.
6276 Search for the language; pass 0 for NAME and LENGTH
6277 to avoid infinite recursion if language not found. */
6278 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6284 save_string (s
, len
)
6288 char *result
= xmalloc (len
+ 1);
6290 memcpy (result
, s
, len
);
6296 pfatal_with_name (name
)
6299 perror_with_name (name
);
6300 delete_temp_files ();
6305 perror_with_name (name
)
6308 error ("%s: %s", name
, xstrerror (errno
));
6312 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6313 const char *errmsg_fmt
;
6314 const char *errmsg_arg
;
6318 int save_errno
= errno
;
6320 /* Space for trailing '\0' is in %s. */
6321 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6322 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6328 pfatal_with_name (errmsg_fmt
);
6331 /* Output an error message and exit */
6336 fatal ("internal gcc abort");
6339 /* Output an error message and exit */
6342 fatal
VPARAMS ((const char *msgid
, ...))
6344 VA_OPEN (ap
, msgid
);
6345 VA_FIXEDARG (ap
, const char *, msgid
);
6347 fprintf (stderr
, "%s: ", programname
);
6348 vfprintf (stderr
, _(msgid
), ap
);
6350 fprintf (stderr
, "\n");
6351 delete_temp_files ();
6356 error
VPARAMS ((const char *msgid
, ...))
6358 VA_OPEN (ap
, msgid
);
6359 VA_FIXEDARG (ap
, const char *, msgid
);
6361 fprintf (stderr
, "%s: ", programname
);
6362 vfprintf (stderr
, _(msgid
), ap
);
6365 fprintf (stderr
, "\n");
6369 notice
VPARAMS ((const char *msgid
, ...))
6371 VA_OPEN (ap
, msgid
);
6372 VA_FIXEDARG (ap
, const char *, msgid
);
6374 vfprintf (stderr
, _(msgid
), ap
);
6379 validate_all_switches ()
6381 struct compiler
*comp
;
6384 struct spec_list
*spec
;
6386 for (comp
= compilers
; comp
->spec
; comp
++)
6390 if (c
== '%' && *p
== '{')
6391 /* We have a switch spec. */
6392 validate_switches (p
+ 1);
6395 /* Look through the linked list of specs read from the specs file. */
6396 for (spec
= specs
; spec
; spec
= spec
->next
)
6398 p
= *(spec
->ptr_spec
);
6400 if (c
== '%' && *p
== '{')
6401 /* We have a switch spec. */
6402 validate_switches (p
+ 1);
6405 p
= link_command_spec
;
6407 if (c
== '%' && *p
== '{')
6408 /* We have a switch spec. */
6409 validate_switches (p
+ 1);
6412 /* Look at the switch-name that comes after START
6413 and mark as valid all supplied switches that match it. */
6416 validate_switches (start
)
6419 const char *p
= start
;
6436 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6441 else if (p
[-1] == '*')
6443 /* Mark all matching switches as valid. */
6444 for (i
= 0; i
< n_switches
; i
++)
6445 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6446 switches
[i
].validated
= 1;
6450 /* Mark an exact matching switch as valid. */
6451 for (i
= 0; i
< n_switches
; i
++)
6453 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6454 && switches
[i
].part1
[p
- filter
] == 0)
6455 switches
[i
].validated
= 1;
6459 if (*p
++ == '|' || p
[-1] == '&')
6463 /* Check whether a particular argument was used. The first time we
6464 canonicalize the switches to keep only the ones we care about. */
6474 const char *replace
;
6479 static struct mswitchstr
*mswitches
;
6480 static int n_mswitches
;
6485 struct mswitchstr
*matches
;
6489 /* Break multilib_matches into the component strings of string
6490 and replacement string. */
6491 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6496 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6498 q
= multilib_matches
;
6508 matches
[i
].len
= q
- matches
[i
].str
;
6510 matches
[i
].replace
= ++q
;
6511 while (*q
!= ';' && *q
!= '\0')
6517 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6523 /* Now build a list of the replacement string for switches that we care
6524 about. Make sure we allocate at least one entry. This prevents
6525 xmalloc from calling fatal, and prevents us from re-executing this
6528 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6529 * (n_switches
? n_switches
: 1));
6530 for (i
= 0; i
< n_switches
; i
++)
6532 int xlen
= strlen (switches
[i
].part1
);
6533 for (j
= 0; j
< cnt
; j
++)
6534 if (xlen
== matches
[j
].len
6535 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6537 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6538 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6539 mswitches
[n_mswitches
].replace
= (char *) 0;
6540 mswitches
[n_mswitches
].rep_len
= 0;
6547 for (i
= 0; i
< n_mswitches
; i
++)
6548 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6555 default_arg (p
, len
)
6559 const char *start
, *end
;
6561 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6563 while (*start
== ' ' || *start
== '\t')
6569 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6572 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6582 /* Work out the subdirectory to use based on the options. The format of
6583 multilib_select is a list of elements. Each element is a subdirectory
6584 name followed by a list of options followed by a semicolon. The format
6585 of multilib_exclusions is the same, but without the preceding
6586 directory. First gcc will check the exclusions, if none of the options
6587 beginning with an exclamation point are present, and all of the other
6588 options are present, then we will ignore this completely. Passing
6589 that, gcc will consider each multilib_select in turn using the same
6590 rules for matching the options. If a match is found, that subdirectory
6597 unsigned int this_path_len
;
6598 const char *this_path
, *this_arg
;
6602 p
= multilib_exclusions
;
6605 /* Ignore newlines. */
6612 /* Check the arguments. */
6626 while (*p
!= ' ' && *p
!= ';')
6633 if (*this_arg
!= '!')
6641 ok
= used_arg (this_arg
, p
- this_arg
);
6655 p
= multilib_select
;
6658 /* Ignore newlines. */
6665 /* Get the initial path. */
6673 this_path_len
= p
- this_path
;
6675 /* Check the arguments. */
6690 while (*p
!= ' ' && *p
!= ';')
6697 if (*this_arg
!= '!')
6705 /* If this is a default argument, we can just ignore it.
6706 This is true even if this_arg begins with '!'. Beginning
6707 with '!' does not mean that this argument is necessarily
6708 inappropriate for this library: it merely means that
6709 there is a more specific library which uses this
6710 argument. If this argument is a default, we need not
6711 consider that more specific library. */
6712 if (! default_arg (this_arg
, p
- this_arg
))
6714 ok
= used_arg (this_arg
, p
- this_arg
);
6725 if (this_path_len
!= 1
6726 || this_path
[0] != '.')
6728 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6729 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6730 new_multilib_dir
[this_path_len
] = '\0';
6731 multilib_dir
= new_multilib_dir
;
6740 /* Print out the multiple library subdirectory selection
6741 information. This prints out a series of lines. Each line looks
6742 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6743 required. Only the desired options are printed out, the negative
6744 matches. The options are print without a leading dash. There are
6745 no spaces to make it easy to use the information in the shell.
6746 Each subdirectory is printed only once. This assumes the ordering
6747 generated by the genmultilib script. Also, we leave out ones that match
6751 print_multilib_info ()
6753 const char *p
= multilib_select
;
6754 const char *last_path
= 0, *this_path
;
6756 unsigned int last_path_len
= 0;
6761 /* Ignore newlines. */
6768 /* Get the initial path. */
6777 /* Check for matches with the multilib_exclusions. We don't bother
6778 with the '!' in either list. If any of the exclusion rules match
6779 all of its options with the select rule, we skip it. */
6781 const char *e
= multilib_exclusions
;
6782 const char *this_arg
;
6787 /* Ignore newlines. */
6794 /* Check the arguments. */
6811 while (*e
!= ' ' && *e
!= ';')
6822 int len
= e
- this_arg
;
6829 while (*q
!= ' ' && *q
!= ';')
6836 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6837 default_arg (this_arg
, e
- this_arg
))
6867 /* If this is a duplicate, skip it. */
6868 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6869 && ! strncmp (last_path
, this_path
, last_path_len
));
6871 last_path
= this_path
;
6872 last_path_len
= p
- this_path
;
6875 /* If this directory requires any default arguments, we can skip
6876 it. We will already have printed a directory identical to
6877 this one which does not require that default argument. */
6895 while (*q
!= ' ' && *q
!= ';')
6903 && default_arg (arg
, q
- arg
))
6918 for (p1
= last_path
; p1
< p
; p1
++)
6937 use_arg
= *p
!= '!';
6942 while (*p
!= ' ' && *p
!= ';')
6957 /* If there are extra options, print them now. */
6958 if (multilib_extra
&& *multilib_extra
)
6960 int print_at
= TRUE
;
6963 for (q
= multilib_extra
; *q
!= '\0'; q
++)