1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
85 #ifdef HAVE_SYS_RESOURCE_H
86 #include <sys/resource.h>
88 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
89 extern int getrusage
PARAMS ((int, struct rusage
*));
92 /* By default there is no special suffix for target executables. */
93 /* FIXME: when autoconf is fixed, remove the host check - dj */
94 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
95 #define HAVE_TARGET_EXECUTABLE_SUFFIX
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 static 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 CPP_SPEC as a spec.
449 %1 process CC1_SPEC as a spec.
450 %2 process CC1PLUS_SPEC as a spec.
451 %| output "-" if the input for the current command is coming from a pipe.
452 %* substitute the variable part of a matched option. (See below.)
453 Note that each comma in the substituted string is replaced by
455 %{S} substitutes the -S switch, if that switch was given to CC.
456 If that switch was not specified, this substitutes nothing.
457 Here S is a metasyntactic variable.
458 %{S*} substitutes all the switches specified to CC whose names start
459 with -S. This is used for -o, -I, etc; switches that take
460 arguments. CC considers `-o foo' as being one switch whose
461 name starts with `o'. %{o*} would substitute this text,
462 including the space; thus, two arguments would be generated.
463 %{^S*} likewise, but don't put a blank between a switch and any args.
464 %{S*&T*} likewise, but preserve order of S and T options (the order
465 of S and T in the spec is not significant). Can be any number
466 of ampersand-separated variables; for each the wild card is
467 optional. Useful for CPP as %{D*&U*&A*}.
468 %{S*:X} substitutes X if one or more switches whose names start with -S are
469 specified to CC. Note that the tail part of the -S option
470 (i.e. the part matched by the `*') will be substituted for each
471 occurrence of %* within X.
472 %{<S} remove all occurrences of -S from the command line.
473 Note - this option is position dependent. % commands in the
474 spec string before this option will see -S, % commands in the
475 spec string after this option will not.
476 %{S:X} substitutes X, but only if the -S switch was given to CC.
477 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
478 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
479 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
480 %{.S:X} substitutes X, but only if processing a file with suffix S.
481 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
482 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
483 combined with ! and . as above binding stronger than the OR.
484 %(Spec) processes a specification defined in a specs file as *Spec:
485 %[Spec] as above, but put __ around -D arguments
487 The conditional text X in a %{S:X} or %{!S:X} construct may contain
488 other nested % constructs or spaces, or even newlines. They are
489 processed as usual, as described above.
491 The -O, -f, -m, and -W switches are handled specifically in these
492 constructs. If another value of -O or the negated form of a -f, -m, or
493 -W switch is found later in the command line, the earlier switch
494 value is ignored, except with {S*} where S is just one letter; this
495 passes all matching options.
497 The character | at the beginning of the predicate text is used to indicate
498 that a command should be piped to the following command, but only if -pipe
501 Note that it is built into CC which switches take arguments and which
502 do not. You might think it would be useful to generalize this to
503 allow each compiler's spec to say which switches take arguments. But
504 this cannot be done in a consistent fashion. CC cannot even decide
505 which input files have been specified without knowing which switches
506 take arguments, and it must know which input files to compile in order
507 to tell which compilers to run.
509 CC also knows implicitly that arguments starting in `-l' are to be
510 treated as compiler output files, and passed to the linker in their
511 proper position among the other output files. */
513 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
515 /* config.h can define ASM_SPEC to provide extra args to the assembler
516 or extra switch-translations. */
521 /* config.h can define ASM_FINAL_SPEC to run a post processor after
522 the assembler has run. */
523 #ifndef ASM_FINAL_SPEC
524 #define ASM_FINAL_SPEC ""
527 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
528 or extra switch-translations. */
533 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
534 or extra switch-translations. */
539 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
540 or extra switch-translations. */
542 #define CC1PLUS_SPEC ""
545 /* config.h can define LINK_SPEC to provide extra args to the linker
546 or extra switch-translations. */
551 /* config.h can define LIB_SPEC to override the default libraries. */
553 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
556 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
559 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
560 /* Have gcc do the search for libgcc.a. */
561 #define LIBGCC_SPEC "libgcc.a%s"
563 #define LIBGCC_SPEC "-lgcc"
567 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
568 #ifndef STARTFILE_SPEC
569 #define STARTFILE_SPEC \
570 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
573 /* config.h can define SWITCHES_NEED_SPACES to control which options
574 require spaces between the option and the argument. */
575 #ifndef SWITCHES_NEED_SPACES
576 #define SWITCHES_NEED_SPACES ""
579 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
581 #define ENDFILE_SPEC ""
585 #define LINKER_NAME "collect2"
588 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
590 #ifndef ASM_DEBUG_SPEC
591 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
592 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
593 # define ASM_DEBUG_SPEC \
594 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
595 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
596 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
598 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
599 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
601 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
602 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
606 #ifndef ASM_DEBUG_SPEC
607 # define ASM_DEBUG_SPEC ""
610 /* Here is the spec for running the linker, after compiling all files. */
612 /* This is overridable by the target in case they need to specify the
613 -lgcc and -lc order specially, yet not require them to override all
614 of LINK_COMMAND_SPEC. */
615 #ifndef LINK_GCC_C_SEQUENCE_SPEC
616 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
619 /* -u* was put back because both BSD and SysV seem to support it. */
620 /* %{static:} simply prevents an error message if the target machine
621 doesn't handle -static. */
622 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
623 scripts which exist in user specified directories, or in standard
625 #ifndef LINK_COMMAND_SPEC
626 #define LINK_COMMAND_SPEC "\
627 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
628 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
629 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
630 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
631 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
634 #ifndef LINK_LIBGCC_SPEC
635 # ifdef LINK_LIBGCC_SPECIAL
636 /* Don't generate -L options for startfile prefix list. */
637 # define LINK_LIBGCC_SPEC ""
639 /* Do generate them. */
640 # define LINK_LIBGCC_SPEC "%D"
644 static const char *asm_debug
= ASM_DEBUG_SPEC
;
645 static const char *cpp_spec
= CPP_SPEC
;
646 static const char *cpp_predefines
= CPP_PREDEFINES
;
647 static const char *cc1_spec
= CC1_SPEC
;
648 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
649 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
650 static const char *asm_spec
= ASM_SPEC
;
651 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
652 static const char *link_spec
= LINK_SPEC
;
653 static const char *lib_spec
= LIB_SPEC
;
654 static const char *libgcc_spec
= LIBGCC_SPEC
;
655 static const char *endfile_spec
= ENDFILE_SPEC
;
656 static const char *startfile_spec
= STARTFILE_SPEC
;
657 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
658 static const char *linker_name_spec
= LINKER_NAME
;
659 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
660 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
662 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
663 There should be no need to override these in target dependent files,
664 but we need to copy them to the specs file so that newer versions
665 of the GCC driver can correctly drive older tool chains with the
666 appropriate -B options. */
668 static const char *trad_capable_cpp
=
669 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
671 static const char *cpp_unique_options
=
672 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
673 %{nostdinc*} %{C} %{v} %{I*} %{P} %{$} %I\
674 %{MD:-MD %W{!o: %b.d}%W{o*:%.d%*}}\
675 %{MMD:-MMD %W{!o: %b.d}%W{o*:%.d%*}}\
676 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
677 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
678 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
679 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
680 %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
681 %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
682 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
683 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
684 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}} %{remap}\
685 %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
688 /* This contains cpp options which are common with cc1_options and are passed
689 only when preprocessing only to avoid duplication. */
690 static const char *cpp_options
=
691 "%(cpp_unique_options) %{std*} %{d*} %{W*} %{w} %{pedantic*}\
692 %{fshow-column} %{fno-show-column}\
693 %{fsigned-char&funsigned-char}\
694 %{fleading-underscore} %{fno-leading-underscore}\
695 %{fno-operator-names} %{ftabstop=*}";
697 /* NB: This is shared amongst all front-ends. */
698 static const char *cc1_options
=
699 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
700 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
701 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
702 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
703 %{Qn:-fno-ident} %{--help:--help}\
704 %{--target-help:--target-help}\
705 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
706 %{fsyntax-only:-o %j} %{-param*}";
708 static const char *asm_options
=
709 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
711 static const char *invoke_as
=
712 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
714 /* Some compilers have limits on line lengths, and the multilib_select
715 and/or multilib_matches strings can be very long, so we build them at
717 static struct obstack multilib_obstack
;
718 static const char *multilib_select
;
719 static const char *multilib_matches
;
720 static const char *multilib_defaults
;
721 static const char *multilib_exclusions
;
722 #include "multilib.h"
724 /* Check whether a particular argument is a default argument. */
726 #ifndef MULTILIB_DEFAULTS
727 #define MULTILIB_DEFAULTS { "" }
730 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
734 struct user_specs
*next
;
735 const char *filename
;
738 static struct user_specs
*user_specs_head
, *user_specs_tail
;
740 /* This defines which switch letters take arguments. */
742 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
743 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
744 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
745 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
746 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
747 || (CHAR) == 'B' || (CHAR) == 'b')
749 #ifndef SWITCH_TAKES_ARG
750 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
753 /* This defines which multi-letter switches take arguments. */
755 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
756 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
757 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
758 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
759 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
760 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
761 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
762 || !strcmp (STR, "specs") \
763 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
765 #ifndef WORD_SWITCH_TAKES_ARG
766 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
769 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
770 /* This defines which switches stop a full compilation. */
771 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
772 ((CHAR) == 'c' || (CHAR) == 'S')
774 #ifndef SWITCH_CURTAILS_COMPILATION
775 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
776 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
780 /* Record the mapping from file suffixes for compilation specs. */
784 const char *suffix
; /* Use this compiler for input files
785 whose names end in this suffix. */
787 const char *spec
; /* To use this compiler, run this spec. */
789 const char *cpp_spec
; /* If non-NULL, substitute this spec
790 for `%C', rather than the usual
794 /* Pointer to a vector of `struct compiler' that gives the spec for
795 compiling a file, based on its suffix.
796 A file that does not end in any of these suffixes will be passed
797 unchanged to the loader and nothing else will be done to it.
799 An entry containing two 0s is used to terminate the vector.
801 If multiple entries match a file, the last matching one is used. */
803 static struct compiler
*compilers
;
805 /* Number of entries in `compilers', not counting the null terminator. */
807 static int n_compilers
;
809 /* The default list of file name suffixes and their compilation specs. */
811 static const struct compiler default_compilers
[] =
813 /* Add lists of suffixes of known languages here. If those languages
814 were not present when we built the driver, we will hit these copies
815 and be given a more meaningful error than "file not used since
816 linking is not done". */
817 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
818 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
819 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
821 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
822 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
823 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
824 {".r", "#Ratfor", 0},
825 {".p", "#Pascal", 0}, {".pas", "#Pascal", 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|no-integrated-cpp:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
836 %(cpp_options) %{save-temps:%b.i} %{!save-temps:%g.i} \n\
837 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} %(cc1_options)}\
838 %{!save-temps:%{!no-integrated-cpp:\
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_unique_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 {"--bootclasspath", "-fbootclasspath=", "aj"},
919 {"--CLASSPATH", "-fclasspath=", "aj"},
920 {"--comments", "-C", 0},
921 {"--compile", "-c", 0},
922 {"--debug", "-g", "oj"},
923 {"--define-macro", "-D", "aj"},
924 {"--dependencies", "-M", 0},
925 {"--dump", "-d", "a"},
926 {"--dumpbase", "-dumpbase", "a"},
927 {"--entry", "-e", 0},
928 {"--extra-warnings", "-W", 0},
929 {"--for-assembler", "-Wa", "a"},
930 {"--for-linker", "-Xlinker", "a"},
931 {"--force-link", "-u", "a"},
932 {"--imacros", "-imacros", "a"},
933 {"--include", "-include", "a"},
934 {"--include-barrier", "-I-", 0},
935 {"--include-directory", "-I", "aj"},
936 {"--include-directory-after", "-idirafter", "a"},
937 {"--include-prefix", "-iprefix", "a"},
938 {"--include-with-prefix", "-iwithprefix", "a"},
939 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
940 {"--include-with-prefix-after", "-iwithprefix", "a"},
941 {"--language", "-x", "a"},
942 {"--library-directory", "-L", "a"},
943 {"--machine", "-m", "aj"},
944 {"--machine-", "-m", "*j"},
945 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
946 {"--no-line-commands", "-P", 0},
947 {"--no-precompiled-includes", "-noprecomp", 0},
948 {"--no-standard-includes", "-nostdinc", 0},
949 {"--no-standard-libraries", "-nostdlib", 0},
950 {"--no-warnings", "-w", 0},
951 {"--optimize", "-O", "oj"},
952 {"--output", "-o", "a"},
953 {"--output-class-directory", "-foutput-class-dir=", "ja"},
954 {"--param", "--param", "a"},
955 {"--pedantic", "-pedantic", 0},
956 {"--pedantic-errors", "-pedantic-errors", 0},
957 {"--pipe", "-pipe", 0},
958 {"--prefix", "-B", "a"},
959 {"--preprocess", "-E", 0},
960 {"--print-search-dirs", "-print-search-dirs", 0},
961 {"--print-file-name", "-print-file-name=", "aj"},
962 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
963 {"--print-missing-file-dependencies", "-MG", 0},
964 {"--print-multi-lib", "-print-multi-lib", 0},
965 {"--print-multi-directory", "-print-multi-directory", 0},
966 {"--print-prog-name", "-print-prog-name=", "aj"},
967 {"--profile", "-p", 0},
968 {"--profile-blocks", "-a", 0},
969 {"--quiet", "-q", 0},
970 {"--resource", "-fcompile-resource=", "aj"},
971 {"--save-temps", "-save-temps", 0},
972 {"--shared", "-shared", 0},
973 {"--silent", "-q", 0},
974 {"--specs", "-specs=", "aj"},
975 {"--static", "-static", 0},
976 {"--std", "-std=", "aj"},
977 {"--symbolic", "-symbolic", 0},
978 {"--target", "-b", "a"},
979 {"--time", "-time", 0},
980 {"--trace-includes", "-H", 0},
981 {"--traditional", "-traditional", 0},
982 {"--traditional-cpp", "-traditional-cpp", 0},
983 {"--trigraphs", "-trigraphs", 0},
984 {"--undefine-macro", "-U", "aj"},
985 {"--use-version", "-V", "a"},
986 {"--user-dependencies", "-MM", 0},
987 {"--verbose", "-v", 0},
988 {"--warn-", "-W", "*j"},
989 {"--write-dependencies", "-MD", 0},
990 {"--write-user-dependencies", "-MMD", 0},
995 #ifdef TARGET_OPTION_TRANSLATE_TABLE
996 static const struct {
997 const char *const option_found
;
998 const char *const replacements
;
999 } target_option_translations
[] =
1001 TARGET_OPTION_TRANSLATE_TABLE
,
1006 /* Translate the options described by *ARGCP and *ARGVP.
1007 Make a new vector and store it back in *ARGVP,
1008 and store its length in *ARGVC. */
1011 translate_options (argcp
, argvp
)
1013 const char *const **argvp
;
1017 const char *const *argv
= *argvp
;
1018 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1020 (const char **) xmalloc (newvsize
);
1024 newv
[newindex
++] = argv
[i
++];
1028 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1032 target_option_translations
[tott_idx
].option_found
;
1035 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1042 for (sp
= target_option_translations
[tott_idx
].replacements
;
1049 newvsize
+= spaces
* sizeof (const char *);
1050 newv
= (const char **) xrealloc (newv
, newvsize
);
1052 sp
= target_option_translations
[tott_idx
].replacements
;
1061 newv
[newindex
++] = np
;
1062 while (*np
!= ' ' && *np
)
1073 if (target_option_translations
[tott_idx
].option_found
)
1077 /* Translate -- options. */
1078 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1081 /* Find a mapping that applies to this option. */
1082 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1084 size_t optlen
= strlen (option_map
[j
].name
);
1085 size_t arglen
= strlen (argv
[i
]);
1086 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1087 const char *arginfo
= option_map
[j
].arg_info
;
1092 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1094 const char *arg
= 0;
1096 if (arglen
< optlen
)
1099 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1100 if (strlen (option_map
[k
].name
) >= arglen
1101 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1103 error ("ambiguous abbreviation %s", argv
[i
]);
1107 if (k
!= ARRAY_SIZE (option_map
))
1111 if (arglen
> optlen
)
1113 /* If the option has an argument, accept that. */
1114 if (argv
[i
][optlen
] == '=')
1115 arg
= argv
[i
] + optlen
+ 1;
1117 /* If this mapping requires extra text at end of name,
1118 accept that as "argument". */
1119 else if (strchr (arginfo
, '*') != 0)
1120 arg
= argv
[i
] + optlen
;
1122 /* Otherwise, extra text at end means mismatch.
1123 Try other mappings. */
1128 else if (strchr (arginfo
, '*') != 0)
1130 error ("incomplete `%s' option", option_map
[j
].name
);
1134 /* Handle arguments. */
1135 if (strchr (arginfo
, 'a') != 0)
1141 error ("missing argument to `%s' option",
1142 option_map
[j
].name
);
1149 else if (strchr (arginfo
, '*') != 0)
1151 else if (strchr (arginfo
, 'o') == 0)
1154 error ("extraneous argument to `%s' option",
1155 option_map
[j
].name
);
1159 /* Store the translation as one argv elt or as two. */
1160 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1161 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1165 newv
[newindex
++] = option_map
[j
].equivalent
;
1166 newv
[newindex
++] = arg
;
1169 newv
[newindex
++] = option_map
[j
].equivalent
;
1177 /* Handle old-fashioned options--just copy them through,
1178 with their arguments. */
1179 else if (argv
[i
][0] == '-')
1181 const char *p
= argv
[i
] + 1;
1185 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1186 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1187 else if (WORD_SWITCH_TAKES_ARG (p
))
1188 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1189 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1192 else if (! strcmp (p
, "Xlinker"))
1195 /* Watch out for an option at the end of the command line that
1196 is missing arguments, and avoid skipping past the end of the
1198 if (nskip
+ i
> argc
)
1203 newv
[newindex
++] = argv
[i
++];
1208 /* Ordinary operands, or +e options. */
1209 newv
[newindex
++] = argv
[i
++];
1224 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1225 be considered whitespace. */
1226 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1228 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1242 /* Structures to keep track of prefixes to try when looking for files. */
1246 const char *prefix
; /* String to prepend to the path. */
1247 struct prefix_list
*next
; /* Next in linked list. */
1248 int require_machine_suffix
; /* Don't use without machine_suffix. */
1249 /* 2 means try both machine_suffix and just_machine_suffix. */
1250 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1251 int priority
; /* Sort key - priority within list */
1256 struct prefix_list
*plist
; /* List of prefixes to try */
1257 int max_len
; /* Max length of a prefix in PLIST */
1258 const char *name
; /* Name of this list (used in config stuff) */
1261 /* List of prefixes to try when looking for executables. */
1263 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1265 /* List of prefixes to try when looking for startup (crt0) files. */
1267 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1269 /* List of prefixes to try when looking for include files. */
1271 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1273 /* Suffix to attach to directories searched for commands.
1274 This looks like `MACHINE/VERSION/'. */
1276 static const char *machine_suffix
= 0;
1278 /* Suffix to attach to directories searched for commands.
1279 This is just `MACHINE/'. */
1281 static const char *just_machine_suffix
= 0;
1283 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1285 static const char *gcc_exec_prefix
;
1287 /* Default prefixes to attach to command names. */
1289 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1290 #undef MD_EXEC_PREFIX
1291 #undef MD_STARTFILE_PREFIX
1292 #undef MD_STARTFILE_PREFIX_1
1295 /* If no prefixes defined, use the null string, which will disable them. */
1296 #ifndef MD_EXEC_PREFIX
1297 #define MD_EXEC_PREFIX ""
1299 #ifndef MD_STARTFILE_PREFIX
1300 #define MD_STARTFILE_PREFIX ""
1302 #ifndef MD_STARTFILE_PREFIX_1
1303 #define MD_STARTFILE_PREFIX_1 ""
1306 /* Supply defaults for the standard prefixes. */
1308 #ifndef STANDARD_EXEC_PREFIX
1309 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1311 #ifndef STANDARD_STARTFILE_PREFIX
1312 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1314 #ifndef TOOLDIR_BASE_PREFIX
1315 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1317 #ifndef STANDARD_BINDIR_PREFIX
1318 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1321 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1322 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1323 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1325 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1326 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1327 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1328 static const char *const standard_startfile_prefix_1
= "/lib/";
1329 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1331 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1332 static const char *tooldir_prefix
;
1334 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1336 /* Subdirectory to use for locating libraries. Set by
1337 set_multilib_dir based on the compilation options. */
1339 static const char *multilib_dir
;
1341 /* Structure to keep track of the specs that have been defined so far.
1342 These are accessed using %(specname) or %[specname] in a compiler
1347 /* The following 2 fields must be first */
1348 /* to allow EXTRA_SPECS to be initialized */
1349 const char *name
; /* name of the spec. */
1350 const char *ptr
; /* available ptr if no static pointer */
1352 /* The following fields are not initialized */
1353 /* by EXTRA_SPECS */
1354 const char **ptr_spec
; /* pointer to the spec itself. */
1355 struct spec_list
*next
; /* Next spec in linked list. */
1356 int name_len
; /* length of the name */
1357 int alloc_p
; /* whether string was allocated */
1360 #define INIT_STATIC_SPEC(NAME,PTR) \
1361 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1363 /* List of statically defined specs. */
1364 static struct spec_list static_specs
[] =
1366 INIT_STATIC_SPEC ("asm", &asm_spec
),
1367 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1368 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1369 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1370 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1371 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1372 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1373 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1374 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1375 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1376 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1377 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1378 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1379 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1380 INIT_STATIC_SPEC ("link", &link_spec
),
1381 INIT_STATIC_SPEC ("lib", &lib_spec
),
1382 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1383 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1384 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1385 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1386 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1387 INIT_STATIC_SPEC ("version", &compiler_version
),
1388 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1389 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1390 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1391 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1392 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1393 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1394 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1395 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1396 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1397 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1400 #ifdef EXTRA_SPECS /* additional specs needed */
1401 /* Structure to keep track of just the first two args of a spec_list.
1402 That is all that the EXTRA_SPECS macro gives us. */
1405 const char *const name
;
1406 const char *const ptr
;
1409 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1410 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1413 /* List of dynamically allocates specs that have been defined so far. */
1415 static struct spec_list
*specs
= (struct spec_list
*) 0;
1417 /* Add appropriate libgcc specs to OBSTACK, taking into account
1418 various permutations of -shared-libgcc, -shared, and such. */
1420 #ifdef ENABLE_SHARED_LIBGCC
1422 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1423 struct obstack
*obstack
;
1424 const char *shared_name
;
1425 const char *static_name
;
1426 const char *eh_name
;
1430 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1431 "}%{!static:%{!static-libgcc:",
1432 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1433 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1434 static_name
, "}}%{shared:",
1436 "%{shared-libgcc:", shared_name
,
1437 "}%{!shared-libgcc:", static_name
, "}",
1443 obstack_grow (obstack
, buf
, strlen (buf
));
1446 #endif /* ENABLE_SHARED_LIBGCC */
1448 /* Initialize the specs lookup routines. */
1453 struct spec_list
*next
= (struct spec_list
*) 0;
1454 struct spec_list
*sl
= (struct spec_list
*) 0;
1458 return; /* Already initialized. */
1461 notice ("Using built-in specs.\n");
1464 extra_specs
= (struct spec_list
*)
1465 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1467 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1469 sl
= &extra_specs
[i
];
1470 sl
->name
= extra_specs_1
[i
].name
;
1471 sl
->ptr
= extra_specs_1
[i
].ptr
;
1473 sl
->name_len
= strlen (sl
->name
);
1474 sl
->ptr_spec
= &sl
->ptr
;
1479 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1481 sl
= &static_specs
[i
];
1486 #ifdef ENABLE_SHARED_LIBGCC
1487 /* ??? If neither -shared-libgcc nor --static-libgcc was
1488 seen, then we should be making an educated guess. Some proposed
1489 heuristics for ELF include:
1491 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1492 program will be doing dynamic loading, which will likely
1493 need the shared libgcc.
1495 (2) If "-ldl", then it's also a fair bet that we're doing
1498 (3) For each ET_DYN we're linking against (either through -lfoo
1499 or /some/path/foo.so), check to see whether it or one of
1500 its dependencies depends on a shared libgcc.
1504 If the runtime is fixed to look for program headers instead
1505 of calling __register_frame_info at all, for each object,
1506 use the shared libgcc if any EH symbol referenced.
1508 If crtstuff is fixed to not invoke __register_frame_info
1509 automatically, for each object, use the shared libgcc if
1510 any non-empty unwind section found.
1512 Doing any of this probably requires invoking an external program to
1513 do the actual object file scanning. */
1515 const char *p
= libgcc_spec
;
1518 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1519 when given the proper command line arguments. */
1522 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1524 init_gcc_specs (&obstack
,
1525 #ifdef NO_SHARED_LIBGCC_MULTILIB
1536 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1538 /* Ug. We don't know shared library extensions. Hope that
1539 systems that use this form don't do shared libraries. */
1540 init_gcc_specs (&obstack
,
1541 #ifdef NO_SHARED_LIBGCC_MULTILIB
1554 obstack_1grow (&obstack
, *p
);
1555 in_sep
= (*p
== ' ');
1560 obstack_1grow (&obstack
, '\0');
1561 libgcc_spec
= obstack_finish (&obstack
);
1564 #ifdef USE_AS_TRADITIONAL_FORMAT
1565 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1567 static const char tf
[] = "--traditional-format ";
1568 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1569 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1570 asm_spec
= obstack_finish (&obstack
);
1574 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1575 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1576 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1577 link_spec
= obstack_finish (&obstack
);
1583 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1584 removed; If the spec starts with a + then SPEC is added to the end of the
1588 set_spec (name
, spec
)
1592 struct spec_list
*sl
;
1593 const char *old_spec
;
1594 int name_len
= strlen (name
);
1597 /* If this is the first call, initialize the statically allocated specs. */
1600 struct spec_list
*next
= (struct spec_list
*) 0;
1601 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1603 sl
= &static_specs
[i
];
1610 /* See if the spec already exists. */
1611 for (sl
= specs
; sl
; sl
= sl
->next
)
1612 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1617 /* Not found - make it. */
1618 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1619 sl
->name
= xstrdup (name
);
1620 sl
->name_len
= name_len
;
1621 sl
->ptr_spec
= &sl
->ptr
;
1623 *(sl
->ptr_spec
) = "";
1628 old_spec
= *(sl
->ptr_spec
);
1629 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1630 ? concat (old_spec
, spec
+ 1, NULL
)
1635 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1638 /* Free the old spec. */
1639 if (old_spec
&& sl
->alloc_p
)
1640 free ((PTR
) old_spec
);
1645 /* Accumulate a command (program name and args), and run it. */
1647 /* Vector of pointers to arguments in the current line of specifications. */
1649 static const char **argbuf
;
1651 /* Number of elements allocated in argbuf. */
1653 static int argbuf_length
;
1655 /* Number of elements in argbuf currently in use (containing args). */
1657 static int argbuf_index
;
1659 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1660 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1663 static struct temp_name
{
1664 const char *suffix
; /* suffix associated with the code. */
1665 int length
; /* strlen (suffix). */
1666 int unique
; /* Indicates whether %g or %u/%U was used. */
1667 const char *filename
; /* associated filename. */
1668 int filename_length
; /* strlen (filename). */
1669 struct temp_name
*next
;
1672 /* Number of commands executed so far. */
1674 static int execution_count
;
1676 /* Number of commands that exited with a signal. */
1678 static int signal_count
;
1680 /* Name with which this program was invoked. */
1682 static const char *programname
;
1684 /* Clear out the vector of arguments (after a command is executed). */
1692 /* Add one argument to the vector at the end.
1693 This is done when a space is seen or at the end of the line.
1694 If DELETE_ALWAYS is nonzero, the arg is a filename
1695 and the file should be deleted eventually.
1696 If DELETE_FAILURE is nonzero, the arg is a filename
1697 and the file should be deleted if this compilation fails. */
1700 store_arg (arg
, delete_always
, delete_failure
)
1702 int delete_always
, delete_failure
;
1704 if (argbuf_index
+ 1 == argbuf_length
)
1706 = (const char **) xrealloc (argbuf
,
1707 (argbuf_length
*= 2) * sizeof (const char *));
1709 argbuf
[argbuf_index
++] = arg
;
1710 argbuf
[argbuf_index
] = 0;
1712 if (delete_always
|| delete_failure
)
1713 record_temp_file (arg
, delete_always
, delete_failure
);
1716 /* Load specs from a file name named FILENAME, replacing occurrences of
1717 various different types of line-endings, \r\n, \n\r and just \r, with
1721 load_specs (filename
)
1722 const char *filename
;
1726 struct stat statbuf
;
1733 notice ("Reading specs from %s\n", filename
);
1735 /* Open and stat the file. */
1736 desc
= open (filename
, O_RDONLY
, 0);
1738 pfatal_with_name (filename
);
1739 if (stat (filename
, &statbuf
) < 0)
1740 pfatal_with_name (filename
);
1742 /* Read contents of file into BUFFER. */
1743 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1744 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1746 pfatal_with_name (filename
);
1747 buffer
[readlen
] = 0;
1750 specs
= xmalloc (readlen
+ 1);
1752 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1758 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1760 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1774 /* Read compilation specs from a file named FILENAME,
1775 replacing the default ones.
1777 A suffix which starts with `*' is a definition for
1778 one of the machine-specific sub-specs. The "suffix" should be
1779 *asm, *cc1, *cpp, *link, *startfile, etc.
1780 The corresponding spec is stored in asm_spec, etc.,
1781 rather than in the `compilers' vector.
1783 Anything invalid in the file is a fatal error. */
1786 read_specs (filename
, main_p
)
1787 const char *filename
;
1793 buffer
= load_specs (filename
);
1795 /* Scan BUFFER for specs, putting them in the vector. */
1801 char *in
, *out
, *p1
, *p2
, *p3
;
1803 /* Advance P in BUFFER to the next nonblank nocomment line. */
1804 p
= skip_whitespace (p
);
1808 /* Is this a special command that starts with '%'? */
1809 /* Don't allow this for the main specs file, since it would
1810 encourage people to overwrite it. */
1811 if (*p
== '%' && !main_p
)
1814 while (*p
&& *p
!= '\n')
1820 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1821 && (p1
[sizeof "%include" - 1] == ' '
1822 || p1
[sizeof "%include" - 1] == '\t'))
1826 p1
+= sizeof ("%include");
1827 while (*p1
== ' ' || *p1
== '\t')
1830 if (*p1
++ != '<' || p
[-2] != '>')
1831 fatal ("specs %%include syntax malformed after %ld characters",
1832 (long) (p1
- buffer
+ 1));
1835 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1836 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1839 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1840 && (p1
[sizeof "%include_noerr" - 1] == ' '
1841 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1845 p1
+= sizeof "%include_noerr";
1846 while (*p1
== ' ' || *p1
== '\t')
1849 if (*p1
++ != '<' || p
[-2] != '>')
1850 fatal ("specs %%include syntax malformed after %ld characters",
1851 (long) (p1
- buffer
+ 1));
1854 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1856 read_specs (new_filename
, FALSE
);
1857 else if (verbose_flag
)
1858 notice ("could not find specs file %s\n", p1
);
1861 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1862 && (p1
[sizeof "%rename" - 1] == ' '
1863 || p1
[sizeof "%rename" - 1] == '\t'))
1866 struct spec_list
*sl
;
1868 /* Get original name */
1869 p1
+= sizeof "%rename";
1870 while (*p1
== ' ' || *p1
== '\t')
1873 if (! ISALPHA ((unsigned char) *p1
))
1874 fatal ("specs %%rename syntax malformed after %ld characters",
1875 (long) (p1
- buffer
));
1878 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1881 if (*p2
!= ' ' && *p2
!= '\t')
1882 fatal ("specs %%rename syntax malformed after %ld characters",
1883 (long) (p2
- buffer
));
1887 while (*p2
== ' ' || *p2
== '\t')
1890 if (! ISALPHA ((unsigned char) *p2
))
1891 fatal ("specs %%rename syntax malformed after %ld characters",
1892 (long) (p2
- buffer
));
1894 /* Get new spec name. */
1896 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1900 fatal ("specs %%rename syntax malformed after %ld characters",
1901 (long) (p3
- buffer
));
1904 for (sl
= specs
; sl
; sl
= sl
->next
)
1905 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1909 fatal ("specs %s spec was not found to be renamed", p1
);
1911 if (strcmp (p1
, p2
) == 0)
1916 notice ("rename spec %s to %s\n", p1
, p2
);
1918 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1922 set_spec (p2
, *(sl
->ptr_spec
));
1924 free ((PTR
) *(sl
->ptr_spec
));
1926 *(sl
->ptr_spec
) = "";
1931 fatal ("specs unknown %% command after %ld characters",
1932 (long) (p1
- buffer
));
1935 /* Find the colon that should end the suffix. */
1937 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1940 /* The colon shouldn't be missing. */
1942 fatal ("specs file malformed after %ld characters",
1943 (long) (p1
- buffer
));
1945 /* Skip back over trailing whitespace. */
1947 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1950 /* Copy the suffix to a string. */
1951 suffix
= save_string (p
, p2
- p
);
1952 /* Find the next line. */
1953 p
= skip_whitespace (p1
+ 1);
1955 fatal ("specs file malformed after %ld characters",
1956 (long) (p
- buffer
));
1959 /* Find next blank line or end of string. */
1960 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1963 /* Specs end at the blank line and do not include the newline. */
1964 spec
= save_string (p
, p1
- p
);
1967 /* Delete backslash-newline sequences from the spec. */
1972 if (in
[0] == '\\' && in
[1] == '\n')
1974 else if (in
[0] == '#')
1975 while (*in
&& *in
!= '\n')
1983 if (suffix
[0] == '*')
1985 if (! strcmp (suffix
, "*link_command"))
1986 link_command_spec
= spec
;
1988 set_spec (suffix
+ 1, spec
);
1992 /* Add this pair to the vector. */
1994 = ((struct compiler
*)
1995 xrealloc (compilers
,
1996 (n_compilers
+ 2) * sizeof (struct compiler
)));
1998 compilers
[n_compilers
].suffix
= suffix
;
1999 compilers
[n_compilers
].spec
= spec
;
2001 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2005 link_command_spec
= spec
;
2008 if (link_command_spec
== 0)
2009 fatal ("spec file has no spec for linking");
2012 /* Record the names of temporary files we tell compilers to write,
2013 and delete them at the end of the run. */
2015 /* This is the common prefix we use to make temp file names.
2016 It is chosen once for each run of this program.
2017 It is substituted into a spec by %g or %j.
2018 Thus, all temp file names contain this prefix.
2019 In practice, all temp file names start with this prefix.
2021 This prefix comes from the envvar TMPDIR if it is defined;
2022 otherwise, from the P_tmpdir macro if that is defined;
2023 otherwise, in /usr/tmp or /tmp;
2024 or finally the current directory if all else fails. */
2026 static const char *temp_filename
;
2028 /* Length of the prefix. */
2030 static int temp_filename_length
;
2032 /* Define the list of temporary files to delete. */
2037 struct temp_file
*next
;
2040 /* Queue of files to delete on success or failure of compilation. */
2041 static struct temp_file
*always_delete_queue
;
2042 /* Queue of files to delete on failure of compilation. */
2043 static struct temp_file
*failure_delete_queue
;
2045 /* Record FILENAME as a file to be deleted automatically.
2046 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2047 otherwise delete it in any case.
2048 FAIL_DELETE nonzero means delete it if a compilation step fails;
2049 otherwise delete it in any case. */
2052 record_temp_file (filename
, always_delete
, fail_delete
)
2053 const char *filename
;
2057 char *const name
= xstrdup (filename
);
2061 struct temp_file
*temp
;
2062 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2063 if (! strcmp (name
, temp
->name
))
2066 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2067 temp
->next
= always_delete_queue
;
2069 always_delete_queue
= temp
;
2076 struct temp_file
*temp
;
2077 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2078 if (! strcmp (name
, temp
->name
))
2081 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2082 temp
->next
= failure_delete_queue
;
2084 failure_delete_queue
= temp
;
2090 /* Delete all the temporary files whose names we previously recorded. */
2093 delete_if_ordinary (name
)
2100 printf ("Delete %s? (y or n) ", name
);
2104 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2107 if (i
== 'y' || i
== 'Y')
2109 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2110 if (unlink (name
) < 0)
2112 perror_with_name (name
);
2116 delete_temp_files ()
2118 struct temp_file
*temp
;
2120 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2121 delete_if_ordinary (temp
->name
);
2122 always_delete_queue
= 0;
2125 /* Delete all the files to be deleted on error. */
2128 delete_failure_queue ()
2130 struct temp_file
*temp
;
2132 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2133 delete_if_ordinary (temp
->name
);
2137 clear_failure_queue ()
2139 failure_delete_queue
= 0;
2142 /* Build a list of search directories from PATHS.
2143 PREFIX is a string to prepend to the list.
2144 If CHECK_DIR_P is non-zero we ensure the directory exists.
2145 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2146 It is also used by the --print-search-dirs flag. */
2149 build_search_list (paths
, prefix
, check_dir_p
)
2150 struct path_prefix
*paths
;
2154 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2156 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2157 int first_time
= TRUE
;
2158 struct prefix_list
*pprefix
;
2160 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2161 obstack_1grow (&collect_obstack
, '=');
2163 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2165 int len
= strlen (pprefix
->prefix
);
2169 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2172 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2175 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2176 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2179 if (just_machine_suffix
2180 && pprefix
->require_machine_suffix
== 2
2182 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2185 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2188 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2189 obstack_grow (&collect_obstack
, just_machine_suffix
,
2193 if (! pprefix
->require_machine_suffix
)
2196 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2199 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2203 obstack_1grow (&collect_obstack
, '\0');
2204 return obstack_finish (&collect_obstack
);
2207 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2211 putenv_from_prefixes (paths
, env_var
)
2212 struct path_prefix
*paths
;
2213 const char *env_var
;
2215 putenv (build_search_list (paths
, env_var
, 1));
2220 /* FIXME: the location independence code for VMS is hairier than this,
2221 and hasn't been written. */
2223 /* Split a filename into component directories. */
2226 split_directories (name
, ptr_num_dirs
)
2235 /* Count the number of directories. Special case MSDOS disk names as part
2236 of the initial directory. */
2238 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2239 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2244 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2246 while ((ch
= *p
++) != '\0')
2248 if (IS_DIR_SEPARATOR (ch
))
2251 while (IS_DIR_SEPARATOR (*p
))
2256 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2258 /* Now copy the directory parts. */
2261 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2262 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2264 dirs
[num_dirs
++] = save_string (p
, 3);
2267 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2270 while ((ch
= *p
++) != '\0')
2272 if (IS_DIR_SEPARATOR (ch
))
2274 while (IS_DIR_SEPARATOR (*p
))
2277 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2283 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2285 dirs
[num_dirs
] = NULL
;
2287 *ptr_num_dirs
= num_dirs
;
2292 /* Release storage held by split directories. */
2295 free_split_directories (dirs
)
2300 while (dirs
[i
] != NULL
)
2303 free ((char *) dirs
);
2306 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2307 to PREFIX starting with the directory portion of PROGNAME and a relative
2308 pathname of the difference between BIN_PREFIX and PREFIX.
2310 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2311 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2312 function will return /red/green/blue/../omega.
2314 If no relative prefix can be found, return NULL. */
2317 make_relative_prefix (progname
, bin_prefix
, prefix
)
2318 const char *progname
;
2319 const char *bin_prefix
;
2322 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2323 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2326 prog_dirs
= split_directories (progname
, &prog_num
);
2327 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2329 /* If there is no full pathname, try to find the program by checking in each
2330 of the directories specified in the PATH environment variable. */
2335 GET_ENV_PATH_LIST (temp
, "PATH");
2338 char *startp
, *endp
, *nstore
;
2339 size_t prefixlen
= strlen (temp
) + 1;
2343 nstore
= (char *) alloca (prefixlen
+ strlen (progname
) + 1);
2345 startp
= endp
= temp
;
2348 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2353 nstore
[1] = DIR_SEPARATOR
;
2358 strncpy (nstore
, startp
, endp
- startp
);
2359 if (! IS_DIR_SEPARATOR (endp
[-1]))
2361 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2362 nstore
[endp
- startp
+ 1] = 0;
2365 nstore
[endp
- startp
] = 0;
2367 strcat (nstore
, progname
);
2368 if (! access (nstore
, X_OK
)
2369 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2370 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2374 free_split_directories (prog_dirs
);
2376 prog_dirs
= split_directories (progname
, &prog_num
);
2382 endp
= startp
= endp
+ 1;
2390 /* Remove the program name from comparison of directory names. */
2393 /* Determine if the compiler is installed in the standard location, and if
2394 so, we don't need to specify relative directories. Also, if argv[0]
2395 doesn't contain any directory specifiers, there is not much we can do. */
2397 if (prog_num
== bin_num
)
2399 for (i
= 0; i
< bin_num
; i
++)
2401 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2405 if (prog_num
<= 0 || i
== bin_num
)
2408 free_split_directories (prog_dirs
);
2409 free_split_directories (bin_dirs
);
2410 prog_dirs
= bin_dirs
= (char **) 0;
2415 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2417 /* Find how many directories are in common between bin_prefix & prefix. */
2418 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2419 for (common
= 0; common
< n
; common
++)
2421 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2425 /* If there are no common directories, there can be no relative prefix. */
2428 free_split_directories (prog_dirs
);
2429 free_split_directories (bin_dirs
);
2430 free_split_directories (prefix_dirs
);
2434 /* Build up the pathnames in argv[0]. */
2435 for (i
= 0; i
< prog_num
; i
++)
2436 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2438 /* Now build up the ..'s. */
2439 for (i
= common
; i
< n
; i
++)
2441 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2442 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2445 /* Put in directories to move over to prefix. */
2446 for (i
= common
; i
< prefix_num
; i
++)
2447 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2449 free_split_directories (prog_dirs
);
2450 free_split_directories (bin_dirs
);
2451 free_split_directories (prefix_dirs
);
2453 obstack_1grow (&obstack
, '\0');
2454 return obstack_finish (&obstack
);
2458 /* Check whether NAME can be accessed in MODE. This is like access,
2459 except that it never considers directories to be executable. */
2462 access_check (name
, mode
)
2470 if (stat (name
, &st
) < 0
2471 || S_ISDIR (st
.st_mode
))
2475 return access (name
, mode
);
2478 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2479 access to check permissions.
2480 Return 0 if not found, otherwise return its name, allocated with malloc. */
2483 find_a_file (pprefix
, name
, mode
)
2484 struct path_prefix
*pprefix
;
2489 const char *const file_suffix
=
2490 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2491 struct prefix_list
*pl
;
2492 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2494 #ifdef DEFAULT_ASSEMBLER
2495 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2496 return xstrdup (DEFAULT_ASSEMBLER
);
2499 #ifdef DEFAULT_LINKER
2500 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2501 return xstrdup (DEFAULT_LINKER
);
2505 len
+= strlen (machine_suffix
);
2507 temp
= xmalloc (len
);
2509 /* Determine the filename to execute (special case for absolute paths). */
2511 if (IS_ABSOLUTE_PATHNAME (name
))
2513 if (access (name
, mode
) == 0)
2515 strcpy (temp
, name
);
2520 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2524 /* Some systems have a suffix for executable files.
2525 So try appending that first. */
2526 if (file_suffix
[0] != 0)
2528 strcpy (temp
, pl
->prefix
);
2529 strcat (temp
, machine_suffix
);
2530 strcat (temp
, name
);
2531 strcat (temp
, file_suffix
);
2532 if (access_check (temp
, mode
) == 0)
2534 if (pl
->used_flag_ptr
!= 0)
2535 *pl
->used_flag_ptr
= 1;
2540 /* Now try just the name. */
2541 strcpy (temp
, pl
->prefix
);
2542 strcat (temp
, machine_suffix
);
2543 strcat (temp
, name
);
2544 if (access_check (temp
, mode
) == 0)
2546 if (pl
->used_flag_ptr
!= 0)
2547 *pl
->used_flag_ptr
= 1;
2552 /* Certain prefixes are tried with just the machine type,
2553 not the version. This is used for finding as, ld, etc. */
2554 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2556 /* Some systems have a suffix for executable files.
2557 So try appending that first. */
2558 if (file_suffix
[0] != 0)
2560 strcpy (temp
, pl
->prefix
);
2561 strcat (temp
, just_machine_suffix
);
2562 strcat (temp
, name
);
2563 strcat (temp
, file_suffix
);
2564 if (access_check (temp
, mode
) == 0)
2566 if (pl
->used_flag_ptr
!= 0)
2567 *pl
->used_flag_ptr
= 1;
2572 strcpy (temp
, pl
->prefix
);
2573 strcat (temp
, just_machine_suffix
);
2574 strcat (temp
, name
);
2575 if (access_check (temp
, mode
) == 0)
2577 if (pl
->used_flag_ptr
!= 0)
2578 *pl
->used_flag_ptr
= 1;
2583 /* Certain prefixes can't be used without the machine suffix
2584 when the machine or version is explicitly specified. */
2585 if (! pl
->require_machine_suffix
)
2587 /* Some systems have a suffix for executable files.
2588 So try appending that first. */
2589 if (file_suffix
[0] != 0)
2591 strcpy (temp
, pl
->prefix
);
2592 strcat (temp
, name
);
2593 strcat (temp
, file_suffix
);
2594 if (access_check (temp
, mode
) == 0)
2596 if (pl
->used_flag_ptr
!= 0)
2597 *pl
->used_flag_ptr
= 1;
2602 strcpy (temp
, pl
->prefix
);
2603 strcat (temp
, name
);
2604 if (access_check (temp
, mode
) == 0)
2606 if (pl
->used_flag_ptr
!= 0)
2607 *pl
->used_flag_ptr
= 1;
2617 /* Ranking of prefixes in the sort list. -B prefixes are put before
2620 enum path_prefix_priority
2622 PREFIX_PRIORITY_B_OPT
,
2623 PREFIX_PRIORITY_LAST
2626 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2627 order according to PRIORITY. Within each PRIORITY, new entries are
2630 If WARN is nonzero, we will warn if no file is found
2631 through this prefix. WARN should point to an int
2632 which will be set to 1 if this entry is used.
2634 COMPONENT is the value to be passed to update_path.
2636 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2637 the complete value of machine_suffix.
2638 2 means try both machine_suffix and just_machine_suffix. */
2641 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2642 struct path_prefix
*pprefix
;
2644 const char *component
;
2645 /* enum prefix_priority */ int priority
;
2646 int require_machine_suffix
;
2649 struct prefix_list
*pl
, **prev
;
2652 for (prev
= &pprefix
->plist
;
2653 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2654 prev
= &(*prev
)->next
)
2657 /* Keep track of the longest prefix */
2659 prefix
= update_path (prefix
, component
);
2660 len
= strlen (prefix
);
2661 if (len
> pprefix
->max_len
)
2662 pprefix
->max_len
= len
;
2664 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2665 pl
->prefix
= prefix
;
2666 pl
->require_machine_suffix
= require_machine_suffix
;
2667 pl
->used_flag_ptr
= warn
;
2668 pl
->priority
= priority
;
2672 /* Insert after PREV */
2677 #if defined (__MINGW32__)
2679 canon_filename (char *fname
)
2692 #define canon_filename(f) f
2696 /* Execute the command specified by the arguments on the current line of spec.
2697 When using pipes, this includes several piped-together commands
2698 with `|' between them.
2700 Return 0 if successful, -1 if failed. */
2706 int n_commands
; /* # of command. */
2710 const char *prog
; /* program name. */
2711 const char **argv
; /* vector of args. */
2712 int pid
; /* pid of process for this command. */
2715 struct command
*commands
; /* each command buffer with above info. */
2717 /* Count # of piped commands. */
2718 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2719 if (strcmp (argbuf
[i
], "|") == 0)
2722 /* Get storage for each command. */
2723 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2725 /* Split argbuf into its separate piped processes,
2726 and record info about each one.
2727 Also search for the programs that are to be run. */
2729 commands
[0].prog
= argbuf
[0]; /* first command. */
2730 commands
[0].argv
= &argbuf
[0];
2731 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2734 commands
[0].argv
[0] = canon_filename(string
);
2736 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2737 if (strcmp (argbuf
[i
], "|") == 0)
2738 { /* each command. */
2739 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2740 fatal ("-pipe not supported");
2742 argbuf
[i
] = 0; /* termination of command args. */
2743 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2744 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2745 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2747 commands
[n_commands
].argv
[0] = canon_filename(string
);
2751 argbuf
[argbuf_index
] = 0;
2753 /* If -v, print what we are about to do, and maybe query. */
2757 /* For help listings, put a blank line between sub-processes. */
2758 if (print_help_list
)
2759 fputc ('\n', stderr
);
2761 /* Print each piped command as a separate line. */
2762 for (i
= 0; i
< n_commands
; i
++)
2764 const char *const *j
;
2766 if (verbose_only_flag
)
2768 for (j
= commands
[i
].argv
; *j
; j
++)
2771 fprintf (stderr
, " \"");
2772 for (p
= *j
; *p
; ++p
)
2774 if (*p
== '"' || *p
== '\\' || *p
== '$')
2775 fputc ('\\', stderr
);
2778 fputc ('"', stderr
);
2782 for (j
= commands
[i
].argv
; *j
; j
++)
2783 fprintf (stderr
, " %s", *j
);
2785 /* Print a pipe symbol after all but the last command. */
2786 if (i
+ 1 != n_commands
)
2787 fprintf (stderr
, " |");
2788 fprintf (stderr
, "\n");
2791 if (verbose_only_flag
!= 0)
2794 notice ("\nGo ahead? (y or n) ");
2798 while (getchar () != '\n')
2801 if (i
!= 'y' && i
!= 'Y')
2806 /* Run each piped subprocess. */
2808 for (i
= 0; i
< n_commands
; i
++)
2810 char *errmsg_fmt
, *errmsg_arg
;
2811 const char *string
= commands
[i
].argv
[0];
2813 /* For some bizarre reason, the second argument of execvp() is
2814 char *const *, not const char *const *. */
2815 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2816 programname
, temp_filename
,
2817 &errmsg_fmt
, &errmsg_arg
,
2818 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2819 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2820 | (string
== commands
[i
].prog
2821 ? PEXECUTE_SEARCH
: 0)
2822 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2824 if (commands
[i
].pid
== -1)
2825 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2827 if (string
!= commands
[i
].prog
)
2828 free ((PTR
) string
);
2833 /* Wait for all the subprocesses to finish.
2834 We don't care what order they finish in;
2835 we know that N_COMMANDS waits will get them all.
2836 Ignore subprocesses that we don't know about,
2837 since they can be spawned by the process that exec'ed us. */
2841 #ifdef HAVE_GETRUSAGE
2843 double ut
= 0.0, st
= 0.0;
2846 for (i
= 0; i
< n_commands
;)
2852 pid
= pwait (commands
[i
].pid
, &status
, 0);
2856 #ifdef HAVE_GETRUSAGE
2859 /* getrusage returns the total resource usage of all children
2860 up to now. Copy the previous values into prus, get the
2861 current statistics, then take the difference. */
2864 getrusage (RUSAGE_CHILDREN
, &rus
);
2865 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2866 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2867 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2869 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2870 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2871 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2875 for (j
= 0; j
< n_commands
; j
++)
2876 if (commands
[j
].pid
== pid
)
2879 if (WIFSIGNALED (status
))
2882 /* SIGPIPE is a special case. It happens in -pipe mode
2883 when the compiler dies before the preprocessor is
2884 done, or the assembler dies before the compiler is
2885 done. There's generally been an error already, and
2886 this is just fallout. So don't generate another error
2887 unless we would otherwise have succeeded. */
2888 if (WTERMSIG (status
) == SIGPIPE
2889 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2894 Internal error: %s (program %s)\n\
2895 Please submit a full bug report.\n\
2896 See %s for instructions.",
2897 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2902 else if (WIFEXITED (status
)
2903 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2905 if (WEXITSTATUS (status
) > greatest_status
)
2906 greatest_status
= WEXITSTATUS (status
);
2909 #ifdef HAVE_GETRUSAGE
2910 if (report_times
&& ut
+ st
!= 0)
2911 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2920 /* Find all the switches given to us
2921 and make a vector describing them.
2922 The elements of the vector are strings, one per switch given.
2923 If a switch uses following arguments, then the `part1' field
2924 is the switch itself and the `args' field
2925 is a null-terminated vector containing the following arguments.
2926 The `live_cond' field is:
2928 1 if the switch is true in a conditional spec,
2929 -1 if false (overridden by a later switch)
2930 -2 if this switch should be ignored (used in %{<S})
2931 The `validated' field is nonzero if any spec has looked at this switch;
2932 if it remains zero at the end of the run, it must be meaningless. */
2935 #define SWITCH_FALSE -1
2936 #define SWITCH_IGNORE -2
2937 #define SWITCH_LIVE 1
2944 unsigned char validated
;
2945 unsigned char ordering
;
2948 static struct switchstr
*switches
;
2950 static int n_switches
;
2955 const char *language
;
2958 /* Also a vector of input files specified. */
2960 static struct infile
*infiles
;
2964 /* This counts the number of libraries added by lang_specific_driver, so that
2965 we can tell if there were any user supplied any files or libraries. */
2967 static int added_libraries
;
2969 /* And a vector of corresponding output files is made up later. */
2971 const char **outfiles
;
2973 /* Used to track if none of the -B paths are used. */
2976 /* Used to track if standard path isn't used and -b or -V is specified. */
2977 static int warn_std
;
2979 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2980 static int *warn_std_ptr
= 0;
2982 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2984 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2985 is true if we should look for an executable suffix. DO_OBJ
2986 is true if we should look for an object suffix. */
2989 convert_filename (name
, do_exe
, do_obj
)
2991 int do_exe ATTRIBUTE_UNUSED
;
2992 int do_obj ATTRIBUTE_UNUSED
;
2994 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3002 len
= strlen (name
);
3004 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3005 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3006 if (do_obj
&& len
> 2
3007 && name
[len
- 2] == '.'
3008 && name
[len
- 1] == 'o')
3010 obstack_grow (&obstack
, name
, len
- 2);
3011 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3012 name
= obstack_finish (&obstack
);
3016 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3017 /* If there is no filetype, make it the executable suffix (which includes
3018 the "."). But don't get confused if we have just "-o". */
3019 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3022 for (i
= len
- 1; i
>= 0; i
--)
3023 if (IS_DIR_SEPARATOR (name
[i
]))
3026 for (i
++; i
< len
; i
++)
3030 obstack_grow (&obstack
, name
, len
);
3031 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3032 strlen (TARGET_EXECUTABLE_SUFFIX
));
3033 name
= obstack_finish (&obstack
);
3040 /* Display the command line switches accepted by gcc. */
3044 printf (_("Usage: %s [options] file...\n"), programname
);
3045 fputs (_("Options:\n"), stdout
);
3047 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3048 fputs (_(" --help Display this information\n"), stdout
);
3049 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3051 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3052 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3053 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3054 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3055 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3056 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3057 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3058 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3059 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3061 -print-multi-lib Display the mapping between command line options and\n\
3062 multiple library search directories\n"), stdout
);
3063 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3064 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3065 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3066 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3067 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3068 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3069 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3070 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3071 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3072 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3073 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3074 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3075 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3076 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3077 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3078 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3079 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3080 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3082 -x <language> Specify the language of the following input files\n\
3083 Permissable languages include: c c++ assembler none\n\
3084 'none' means revert to the default behavior of\n\
3085 guessing the language based on the file's extension\n\
3089 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3090 passed on to the various sub-processes invoked by %s. In order to pass\n\
3091 other options on to these processes the -W<letter> options must be used.\n\
3094 /* The rest of the options are displayed by invocations of the various
3099 add_preprocessor_option (option
, len
)
3103 n_preprocessor_options
++;
3105 if (! preprocessor_options
)
3106 preprocessor_options
3107 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3109 preprocessor_options
3110 = (char **) xrealloc (preprocessor_options
,
3111 n_preprocessor_options
* sizeof (char *));
3113 preprocessor_options
[n_preprocessor_options
- 1] =
3114 save_string (option
, len
);
3118 add_assembler_option (option
, len
)
3122 n_assembler_options
++;
3124 if (! assembler_options
)
3126 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3129 = (char **) xrealloc (assembler_options
,
3130 n_assembler_options
* sizeof (char *));
3132 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3136 add_linker_option (option
, len
)
3142 if (! linker_options
)
3144 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3147 = (char **) xrealloc (linker_options
,
3148 n_linker_options
* sizeof (char *));
3150 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3153 /* Create the vector `switches' and its contents.
3154 Store its length in `n_switches'. */
3157 process_command (argc
, argv
)
3159 const char *const *argv
;
3164 const char *spec_lang
= 0;
3165 int last_language_n_infiles
;
3168 int lang_n_infiles
= 0;
3169 #ifdef MODIFY_TARGET_NAME
3170 int is_modify_target_name
;
3174 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3178 added_libraries
= 0;
3180 /* Figure compiler version from version string. */
3182 compiler_version
= temp1
= xstrdup (version_string
);
3184 for (; *temp1
; ++temp1
)
3193 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3194 see if we can create it from the pathname specified in argv[0]. */
3197 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3198 if (!gcc_exec_prefix
)
3200 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3201 standard_exec_prefix
);
3202 if (gcc_exec_prefix
)
3203 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3207 if (gcc_exec_prefix
)
3209 int len
= strlen (gcc_exec_prefix
);
3211 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3212 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3214 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3215 if (IS_DIR_SEPARATOR (*temp
)
3216 && strncmp (temp
+ 1, "lib", 3) == 0
3217 && IS_DIR_SEPARATOR (temp
[4])
3218 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3219 len
-= sizeof ("/lib/gcc-lib/") - 1;
3222 set_std_prefix (gcc_exec_prefix
, len
);
3223 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3224 PREFIX_PRIORITY_LAST
, 0, NULL
);
3225 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3226 PREFIX_PRIORITY_LAST
, 0, NULL
);
3229 /* COMPILER_PATH and LIBRARY_PATH have values
3230 that are lists of directory names with colons. */
3232 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
3235 const char *startp
, *endp
;
3236 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3238 startp
= endp
= temp
;
3241 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3243 strncpy (nstore
, startp
, endp
- startp
);
3245 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3246 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3248 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3249 nstore
[endp
- startp
+ 1] = 0;
3252 nstore
[endp
- startp
] = 0;
3253 add_prefix (&exec_prefixes
, nstore
, 0,
3254 PREFIX_PRIORITY_LAST
, 0, NULL
);
3255 add_prefix (&include_prefixes
,
3256 concat (nstore
, "include", NULL
),
3257 0, PREFIX_PRIORITY_LAST
, 0, NULL
);
3260 endp
= startp
= endp
+ 1;
3267 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3268 if (temp
&& *cross_compile
== '0')
3270 const char *startp
, *endp
;
3271 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3273 startp
= endp
= temp
;
3276 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3278 strncpy (nstore
, startp
, endp
- startp
);
3280 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3281 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3283 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3284 nstore
[endp
- startp
+ 1] = 0;
3287 nstore
[endp
- startp
] = 0;
3288 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3289 PREFIX_PRIORITY_LAST
, 0, NULL
);
3292 endp
= startp
= endp
+ 1;
3299 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3300 GET_ENV_PATH_LIST (temp
, "LPATH");
3301 if (temp
&& *cross_compile
== '0')
3303 const char *startp
, *endp
;
3304 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3306 startp
= endp
= temp
;
3309 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3311 strncpy (nstore
, startp
, endp
- startp
);
3313 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3314 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3316 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3317 nstore
[endp
- startp
+ 1] = 0;
3320 nstore
[endp
- startp
] = 0;
3321 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3322 PREFIX_PRIORITY_LAST
, 0, NULL
);
3325 endp
= startp
= endp
+ 1;
3332 /* Convert new-style -- options to old-style. */
3333 translate_options (&argc
, &argv
);
3335 /* Do language-specific adjustment/addition of flags. */
3336 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3338 /* Scan argv twice. Here, the first time, just count how many switches
3339 there will be in their vector, and how many input files in theirs.
3340 Also parse any switches that determine the configuration name, such as -b.
3341 Here we also parse the switches that cc itself uses (e.g. -v). */
3343 for (i
= 1; i
< argc
; i
++)
3345 if (! strcmp (argv
[i
], "-dumpspecs"))
3347 struct spec_list
*sl
;
3349 for (sl
= specs
; sl
; sl
= sl
->next
)
3350 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3351 if (link_command_spec
)
3352 printf ("*link_command:\n%s\n\n", link_command_spec
);
3355 else if (! strcmp (argv
[i
], "-dumpversion"))
3357 printf ("%s\n", spec_version
);
3360 else if (! strcmp (argv
[i
], "-dumpmachine"))
3362 printf ("%s\n", spec_machine
);
3365 else if (strcmp (argv
[i
], "-fversion") == 0)
3367 /* translate_options () has turned --version into -fversion. */
3368 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3369 fputs (_("Copyright (C) 2002 Free Software Foundation, Inc.\n"),
3371 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3372 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3376 else if (strcmp (argv
[i
], "-fhelp") == 0)
3378 /* translate_options () has turned --help into -fhelp. */
3379 print_help_list
= 1;
3381 /* We will be passing a dummy file on to the sub-processes. */
3385 /* CPP driver cannot obtain switch from cc1_options. */
3387 add_preprocessor_option ("--help", 6);
3388 add_assembler_option ("--help", 6);
3389 add_linker_option ("--help", 6);
3391 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3393 /* translate_options() has turned --target-help into -ftarget-help. */
3394 target_help_flag
= 1;
3396 /* We will be passing a dummy file on to the sub-processes. */
3400 /* CPP driver cannot obtain switch from cc1_options. */
3402 add_preprocessor_option ("--target-help", 13);
3403 add_assembler_option ("--target-help", 13);
3404 add_linker_option ("--target-help", 13);
3406 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3408 pass_exit_codes
= 1;
3411 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3412 print_search_dirs
= 1;
3413 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3414 print_file_name
= "libgcc.a";
3415 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3416 print_file_name
= argv
[i
] + 17;
3417 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3418 print_prog_name
= argv
[i
] + 17;
3419 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3420 print_multi_lib
= 1;
3421 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3422 print_multi_directory
= 1;
3423 else if (! strncmp (argv
[i
], "-Wa,", 4))
3426 /* Pass the rest of this option to the assembler. */
3428 /* Split the argument at commas. */
3430 for (j
= 4; argv
[i
][j
]; j
++)
3431 if (argv
[i
][j
] == ',')
3433 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3437 /* Record the part after the last comma. */
3438 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3440 else if (! strncmp (argv
[i
], "-Wp,", 4))
3443 /* Pass the rest of this option to the preprocessor. */
3445 /* Split the argument at commas. */
3447 for (j
= 4; argv
[i
][j
]; j
++)
3448 if (argv
[i
][j
] == ',')
3450 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3454 /* Record the part after the last comma. */
3455 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3457 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3458 /* The +e options to the C++ front-end. */
3460 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3463 /* Split the argument at commas. */
3464 for (j
= 3; argv
[i
][j
]; j
++)
3465 n_infiles
+= (argv
[i
][j
] == ',');
3467 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3470 fatal ("argument to `-Xlinker' is missing");
3475 else if (strcmp (argv
[i
], "-l") == 0)
3478 fatal ("argument to `-l' is missing");
3483 else if (strncmp (argv
[i
], "-l", 2) == 0)
3485 else if (strcmp (argv
[i
], "-save-temps") == 0)
3487 save_temps_flag
= 1;
3490 else if (strcmp (argv
[i
], "-specs") == 0)
3492 struct user_specs
*user
= (struct user_specs
*)
3493 xmalloc (sizeof (struct user_specs
));
3495 fatal ("argument to `-specs' is missing");
3497 user
->next
= (struct user_specs
*) 0;
3498 user
->filename
= argv
[i
];
3499 if (user_specs_tail
)
3500 user_specs_tail
->next
= user
;
3502 user_specs_head
= user
;
3503 user_specs_tail
= user
;
3505 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3507 struct user_specs
*user
= (struct user_specs
*)
3508 xmalloc (sizeof (struct user_specs
));
3509 if (strlen (argv
[i
]) == 7)
3510 fatal ("argument to `-specs=' is missing");
3512 user
->next
= (struct user_specs
*) 0;
3513 user
->filename
= argv
[i
] + 7;
3514 if (user_specs_tail
)
3515 user_specs_tail
->next
= user
;
3517 user_specs_head
= user
;
3518 user_specs_tail
= user
;
3520 else if (strcmp (argv
[i
], "-time") == 0)
3522 else if (strcmp (argv
[i
], "-###") == 0)
3524 /* This is similar to -v except that there is no execution
3525 of the commands and the echoed arguments are quoted. It
3526 is intended for use in shell scripts to capture the
3527 driver-generated command line. */
3528 verbose_only_flag
++;
3531 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3533 const char *p
= &argv
[i
][1];
3540 if (p
[1] == 0 && i
+ 1 == argc
)
3541 fatal ("argument to `-b' is missing");
3543 spec_machine
= argv
[++i
];
3545 spec_machine
= p
+ 1;
3547 warn_std_ptr
= &warn_std
;
3555 if (p
[1] == 0 && i
+ 1 == argc
)
3556 fatal ("argument to `-B' is missing");
3562 len
= strlen (value
);
3564 /* Catch the case where the user has forgotten to append a
3565 directory separator to the path. Note, they may be using
3566 -B to add an executable name prefix, eg "i386-elf-", in
3567 order to distinguish between multiple installations of
3568 GCC in the same directory. Hence we must check to see
3569 if appending a directory separator actually makes a
3570 valid directory name. */
3571 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3572 && is_directory (value
, "", 0))
3574 char *tmp
= xmalloc (len
+ 2);
3575 strcpy (tmp
, value
);
3576 tmp
[len
] = DIR_SEPARATOR
;
3581 /* As a kludge, if the arg is "[foo/]stageN/", just
3582 add "[foo/]include" to the include prefix. */
3585 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3586 && strncmp (value
+ len
- 7, "stage", 5) == 0
3587 && ISDIGIT (value
[len
- 2])
3588 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3591 add_prefix (&include_prefixes
, "include", NULL
,
3592 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3595 char * string
= xmalloc (len
+ 1);
3597 strncpy (string
, value
, len
- 7);
3598 strcpy (string
+ len
- 7, "include");
3599 add_prefix (&include_prefixes
, string
, NULL
,
3600 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3604 add_prefix (&exec_prefixes
, value
, NULL
,
3605 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3606 add_prefix (&startfile_prefixes
, value
, NULL
,
3607 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3608 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3609 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3614 case 'v': /* Print our subcommands and print versions. */
3616 /* If they do anything other than exactly `-v', don't set
3617 verbose_flag; rather, continue on to give the error. */
3625 if (p
[1] == 0 && i
+ 1 == argc
)
3626 fatal ("argument to `-V' is missing");
3628 spec_version
= argv
[++i
];
3630 spec_version
= p
+ 1;
3631 compiler_version
= spec_version
;
3632 warn_std_ptr
= &warn_std
;
3634 /* Validate the version number. Use the same checks
3635 done when inserting it into a spec.
3637 The format of the version string is
3638 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3640 const char *v
= compiler_version
;
3642 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3643 while (! ISDIGIT (*v
))
3646 if (v
> compiler_version
&& v
[-1] != '-')
3647 fatal ("invalid version number format");
3649 /* Set V after the first period. */
3650 while (ISDIGIT (*v
))
3654 fatal ("invalid version number format");
3657 while (ISDIGIT (*v
))
3660 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3661 fatal ("invalid version number format");
3677 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3682 /* Forward scan, just in case -S or -c is specified
3689 if (argv
[j
][0] == '-')
3691 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3697 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3698 j
+= skip
- (argv
[j
][2] != 0);
3699 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3706 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3708 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3710 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3717 #ifdef MODIFY_TARGET_NAME
3718 is_modify_target_name
= 0;
3721 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3722 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3725 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3726 + strlen (spec_machine
));
3729 int made_addition
= 0;
3731 is_modify_target_name
= 1;
3732 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3734 if (modify_target
[j
].add_del
== DELETE
3735 && (! strncmp (q
, modify_target
[j
].str
,
3736 strlen (modify_target
[j
].str
))))
3737 p
+= strlen (modify_target
[j
].str
);
3738 else if (modify_target
[j
].add_del
== ADD
3739 && ! made_addition
&& *p
== '-')
3741 for (r
= modify_target
[j
].str
; *r
!= 0; )
3749 spec_machine
= new_name
;
3752 if (is_modify_target_name
)
3758 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3759 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3760 else if (WORD_SWITCH_TAKES_ARG (p
))
3761 i
+= WORD_SWITCH_TAKES_ARG (p
);
3771 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3772 fatal ("cannot specify -o with -c or -S and multiple compilations");
3774 /* Set up the search paths before we go looking for config files. */
3776 /* These come before the md prefixes so that we will find gcc's subcommands
3777 (such as cpp) rather than those of the host system. */
3778 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3779 as well as trying the machine and the version. */
3781 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3782 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3783 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3784 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3785 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3786 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3789 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3790 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3791 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3792 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3794 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3795 dir_separator_str
, NULL
);
3797 /* If tooldir is relative, base it on exec_prefixes. A relative
3798 tooldir lets us move the installed tree as a unit.
3800 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3801 directories, so that we can search both the user specified directory
3802 and the standard place. */
3804 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3806 if (gcc_exec_prefix
)
3808 char *gcc_exec_tooldir_prefix
3809 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3810 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3812 add_prefix (&exec_prefixes
,
3813 concat (gcc_exec_tooldir_prefix
, "bin",
3814 dir_separator_str
, NULL
),
3815 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3816 add_prefix (&startfile_prefixes
,
3817 concat (gcc_exec_tooldir_prefix
, "lib",
3818 dir_separator_str
, NULL
),
3819 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3822 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3823 dir_separator_str
, spec_version
,
3824 dir_separator_str
, tooldir_prefix
, NULL
);
3827 add_prefix (&exec_prefixes
,
3828 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3829 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3830 add_prefix (&startfile_prefixes
,
3831 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3832 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3834 /* More prefixes are enabled in main, after we read the specs file
3835 and determine whether this is cross-compilation or not. */
3837 /* Then create the space for the vectors and scan again. */
3839 switches
= ((struct switchstr
*)
3840 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3841 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3844 last_language_n_infiles
= -1;
3846 /* This, time, copy the text of each switch and store a pointer
3847 to the copy in the vector of switches.
3848 Store all the infiles in their vector. */
3850 for (i
= 1; i
< argc
; i
++)
3852 /* Just skip the switches that were handled by the preceding loop. */
3853 #ifdef MODIFY_TARGET_NAME
3854 is_modify_target_name
= 0;
3856 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3857 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3858 is_modify_target_name
= 1;
3860 if (is_modify_target_name
)
3864 if (! strncmp (argv
[i
], "-Wa,", 4))
3866 else if (! strncmp (argv
[i
], "-Wp,", 4))
3868 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3870 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3872 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3874 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3876 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3878 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3880 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3882 else if (! strcmp (argv
[i
], "-ftarget-help"))
3884 else if (! strcmp (argv
[i
], "-fhelp"))
3886 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3888 /* Compensate for the +e options to the C++ front-end;
3889 they're there simply for cfront call-compatibility. We do
3890 some magic in default_compilers to pass them down properly.
3891 Note we deliberately start at the `+' here, to avoid passing
3892 -e0 or -e1 down into the linker. */
3893 switches
[n_switches
].part1
= &argv
[i
][0];
3894 switches
[n_switches
].args
= 0;
3895 switches
[n_switches
].live_cond
= SWITCH_OK
;
3896 switches
[n_switches
].validated
= 0;
3899 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3902 /* Split the argument at commas. */
3904 for (j
= 4; argv
[i
][j
]; j
++)
3905 if (argv
[i
][j
] == ',')
3907 infiles
[n_infiles
].language
= "*";
3908 infiles
[n_infiles
++].name
3909 = save_string (argv
[i
] + prev
, j
- prev
);
3912 /* Record the part after the last comma. */
3913 infiles
[n_infiles
].language
= "*";
3914 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3916 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3918 infiles
[n_infiles
].language
= "*";
3919 infiles
[n_infiles
++].name
= argv
[++i
];
3921 else if (strcmp (argv
[i
], "-l") == 0)
3922 { /* POSIX allows separation of -l and the lib arg;
3923 canonicalize by concatenating -l with its arg */
3924 infiles
[n_infiles
].language
= "*";
3925 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3927 else if (strncmp (argv
[i
], "-l", 2) == 0)
3929 infiles
[n_infiles
].language
= "*";
3930 infiles
[n_infiles
++].name
= argv
[i
];
3932 else if (strcmp (argv
[i
], "-specs") == 0)
3934 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3936 else if (strcmp (argv
[i
], "-time") == 0)
3938 else if ((save_temps_flag
|| report_times
)
3939 && strcmp (argv
[i
], "-pipe") == 0)
3941 /* -save-temps overrides -pipe, so that temp files are produced */
3942 if (save_temps_flag
)
3943 error ("warning: -pipe ignored because -save-temps specified");
3944 /* -time overrides -pipe because we can't get correct stats when
3945 multiple children are running at once. */
3946 else if (report_times
)
3947 error ("warning: -pipe ignored because -time specified");
3949 else if (strcmp (argv
[i
], "-###") == 0)
3951 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3953 const char *p
= &argv
[i
][1];
3958 if (p
[1] == 0 && i
+ 1 == argc
)
3959 fatal ("argument to `-x' is missing");
3961 spec_lang
= argv
[++i
];
3964 if (! strcmp (spec_lang
, "none"))
3965 /* Suppress the warning if -xnone comes after the last input
3966 file, because alternate command interfaces like g++ might
3967 find it useful to place -xnone after each input file. */
3970 last_language_n_infiles
= n_infiles
;
3973 switches
[n_switches
].part1
= p
;
3974 /* Deal with option arguments in separate argv elements. */
3975 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3976 || WORD_SWITCH_TAKES_ARG (p
))
3979 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3983 /* Count only the option arguments in separate argv elements. */
3984 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3986 if (i
+ n_args
>= argc
)
3987 fatal ("argument to `-%s' is missing", p
);
3988 switches
[n_switches
].args
3989 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3991 switches
[n_switches
].args
[j
++] = argv
[++i
];
3992 /* Null-terminate the vector. */
3993 switches
[n_switches
].args
[j
] = 0;
3995 else if (strchr (switches_need_spaces
, c
))
3997 /* On some systems, ld cannot handle some options without
3998 a space. So split the option from its argument. */
3999 char *part1
= (char *) xmalloc (2);
4003 switches
[n_switches
].part1
= part1
;
4004 switches
[n_switches
].args
4005 = (const char **) xmalloc (2 * sizeof (const char *));
4006 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4007 switches
[n_switches
].args
[1] = 0;
4010 switches
[n_switches
].args
= 0;
4012 switches
[n_switches
].live_cond
= SWITCH_OK
;
4013 switches
[n_switches
].validated
= 0;
4014 switches
[n_switches
].ordering
= 0;
4015 /* These are always valid, since gcc.c itself understands it. */
4016 if (!strcmp (p
, "save-temps")
4017 || !strcmp (p
, "static-libgcc")
4018 || !strcmp (p
, "shared-libgcc"))
4019 switches
[n_switches
].validated
= 1;
4022 char ch
= switches
[n_switches
].part1
[0];
4023 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
4024 switches
[n_switches
].validated
= 1;
4030 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4031 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4034 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4036 perror_with_name (argv
[i
]);
4041 infiles
[n_infiles
].language
= spec_lang
;
4042 infiles
[n_infiles
++].name
= argv
[i
];
4047 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4048 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4050 /* Ensure we only invoke each subprocess once. */
4051 if (target_help_flag
|| print_help_list
)
4055 /* Create a dummy input file, so that we can pass --target-help on to
4056 the various sub-processes. */
4057 infiles
[0].language
= "c";
4058 infiles
[0].name
= "help-dummy";
4060 if (target_help_flag
)
4062 switches
[n_switches
].part1
= "--target-help";
4063 switches
[n_switches
].args
= 0;
4064 switches
[n_switches
].live_cond
= SWITCH_OK
;
4065 switches
[n_switches
].validated
= 0;
4070 if (print_help_list
)
4072 switches
[n_switches
].part1
= "--help";
4073 switches
[n_switches
].args
= 0;
4074 switches
[n_switches
].live_cond
= SWITCH_OK
;
4075 switches
[n_switches
].validated
= 0;
4081 switches
[n_switches
].part1
= 0;
4082 infiles
[n_infiles
].name
= 0;
4085 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
4086 and place that in the environment. */
4089 set_collect_gcc_options ()
4094 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4096 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4097 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4100 for (i
= 0; (int) i
< n_switches
; i
++)
4102 const char *const *args
;
4105 obstack_grow (&collect_obstack
, " ", 1);
4109 /* Ignore elided switches. */
4110 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4113 obstack_grow (&collect_obstack
, "'-", 2);
4114 q
= switches
[i
].part1
;
4115 while ((p
= strchr (q
, '\'')))
4117 obstack_grow (&collect_obstack
, q
, p
- q
);
4118 obstack_grow (&collect_obstack
, "'\\''", 4);
4121 obstack_grow (&collect_obstack
, q
, strlen (q
));
4122 obstack_grow (&collect_obstack
, "'", 1);
4124 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4126 obstack_grow (&collect_obstack
, " '", 2);
4128 while ((p
= strchr (q
, '\'')))
4130 obstack_grow (&collect_obstack
, q
, p
- q
);
4131 obstack_grow (&collect_obstack
, "'\\''", 4);
4134 obstack_grow (&collect_obstack
, q
, strlen (q
));
4135 obstack_grow (&collect_obstack
, "'", 1);
4138 obstack_grow (&collect_obstack
, "\0", 1);
4139 putenv (obstack_finish (&collect_obstack
));
4142 /* Process a spec string, accumulating and running commands. */
4144 /* These variables describe the input file name.
4145 input_file_number is the index on outfiles of this file,
4146 so that the output file name can be stored for later use by %o.
4147 input_basename is the start of the part of the input file
4148 sans all directory names, and basename_length is the number
4149 of characters starting there excluding the suffix .c or whatever. */
4151 const char *input_filename
;
4152 static int input_file_number
;
4153 size_t input_filename_length
;
4154 static int basename_length
;
4155 static int suffixed_basename_length
;
4156 static const char *input_basename
;
4157 static const char *input_suffix
;
4158 static struct stat input_stat
;
4159 static int input_stat_set
;
4161 /* The compiler used to process the current input file. */
4162 static struct compiler
*input_file_compiler
;
4164 /* These are variables used within do_spec and do_spec_1. */
4166 /* Nonzero if an arg has been started and not yet terminated
4167 (with space, tab or newline). */
4168 static int arg_going
;
4170 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4171 is a temporary file name. */
4172 static int delete_this_arg
;
4174 /* Nonzero means %w has been seen; the next arg to be terminated
4175 is the output file name of this compilation. */
4176 static int this_is_output_file
;
4178 /* Nonzero means %s has been seen; the next arg to be terminated
4179 is the name of a library file and we should try the standard
4180 search dirs for it. */
4181 static int this_is_library_file
;
4183 /* Nonzero means that the input of this command is coming from a pipe. */
4184 static int input_from_pipe
;
4186 /* Nonnull means substitute this for any suffix when outputting a switches
4188 static const char *suffix_subst
;
4190 /* Process the spec SPEC and run the commands specified therein.
4191 Returns 0 if the spec is successfully processed; -1 if failed. */
4201 delete_this_arg
= 0;
4202 this_is_output_file
= 0;
4203 this_is_library_file
= 0;
4204 input_from_pipe
= 0;
4205 suffix_subst
= NULL
;
4207 value
= do_spec_1 (spec
, 0, NULL
);
4209 /* Force out any unfinished command.
4210 If -pipe, this forces out the last command if it ended in `|'. */
4213 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4216 set_collect_gcc_options ();
4218 if (argbuf_index
> 0)
4225 /* Process the sub-spec SPEC as a portion of a larger spec.
4226 This is like processing a whole spec except that we do
4227 not initialize at the beginning and we do not supply a
4228 newline by default at the end.
4229 INSWITCH nonzero means don't process %-sequences in SPEC;
4230 in this case, % is treated as an ordinary character.
4231 This is used while substituting switches.
4232 INSWITCH nonzero also causes SPC not to terminate an argument.
4234 Value is zero unless a line was finished
4235 and the command on that line reported an error. */
4238 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4241 const char *soft_matched_part
;
4243 const char *p
= spec
;
4250 /* If substituting a switch, treat all chars like letters.
4251 Otherwise, NL, SPC, TAB and % are special. */
4252 switch (inswitch
? 'a' : c
)
4255 /* End of line: finish any pending argument,
4256 then run the pending command if one has been started. */
4259 obstack_1grow (&obstack
, 0);
4260 string
= obstack_finish (&obstack
);
4261 if (this_is_library_file
)
4262 string
= find_file (string
);
4263 store_arg (string
, delete_this_arg
, this_is_output_file
);
4264 if (this_is_output_file
)
4265 outfiles
[input_file_number
] = string
;
4269 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4271 for (i
= 0; i
< n_switches
; i
++)
4272 if (!strcmp (switches
[i
].part1
, "pipe"))
4275 /* A `|' before the newline means use a pipe here,
4276 but only if -pipe was specified.
4277 Otherwise, execute now and don't pass the `|' as an arg. */
4280 input_from_pipe
= 1;
4281 switches
[i
].validated
= 1;
4288 set_collect_gcc_options ();
4290 if (argbuf_index
> 0)
4296 /* Reinitialize for a new command, and for a new argument. */
4299 delete_this_arg
= 0;
4300 this_is_output_file
= 0;
4301 this_is_library_file
= 0;
4302 input_from_pipe
= 0;
4306 /* End any pending argument. */
4309 obstack_1grow (&obstack
, 0);
4310 string
= obstack_finish (&obstack
);
4311 if (this_is_library_file
)
4312 string
= find_file (string
);
4313 store_arg (string
, delete_this_arg
, this_is_output_file
);
4314 if (this_is_output_file
)
4315 outfiles
[input_file_number
] = string
;
4319 obstack_1grow (&obstack
, c
);
4325 /* Space or tab ends an argument if one is pending. */
4328 obstack_1grow (&obstack
, 0);
4329 string
= obstack_finish (&obstack
);
4330 if (this_is_library_file
)
4331 string
= find_file (string
);
4332 store_arg (string
, delete_this_arg
, this_is_output_file
);
4333 if (this_is_output_file
)
4334 outfiles
[input_file_number
] = string
;
4336 /* Reinitialize for a new argument. */
4338 delete_this_arg
= 0;
4339 this_is_output_file
= 0;
4340 this_is_library_file
= 0;
4347 fatal ("invalid specification! Bug in cc");
4350 obstack_grow (&obstack
, input_basename
, basename_length
);
4355 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4360 delete_this_arg
= 2;
4363 /* Dump out the directories specified with LIBRARY_PATH,
4364 followed by the absolute directories
4365 that we search for startfiles. */
4368 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4369 size_t bufsize
= 100;
4370 char *buffer
= (char *) xmalloc (bufsize
);
4373 for (; pl
; pl
= pl
->next
)
4375 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4376 /* Used on systems which record the specified -L dirs
4377 and use them to search for dynamic linking. */
4378 /* Relative directories always come from -B,
4379 and it is better not to use them for searching
4380 at run time. In particular, stage1 loses. */
4381 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4384 /* Try subdirectory if there is one. */
4385 if (multilib_dir
!= NULL
)
4389 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4391 bufsize
= (strlen (pl
->prefix
)
4392 + strlen (machine_suffix
)) * 2 + 1;
4393 buffer
= (char *) xrealloc (buffer
, bufsize
);
4394 strcpy (buffer
, pl
->prefix
);
4395 strcat (buffer
, machine_suffix
);
4396 if (is_directory (buffer
, multilib_dir
, 1))
4398 do_spec_1 ("-L", 0, NULL
);
4399 #ifdef SPACE_AFTER_L_OPTION
4400 do_spec_1 (" ", 0, NULL
);
4402 do_spec_1 (buffer
, 1, NULL
);
4403 do_spec_1 (multilib_dir
, 1, NULL
);
4404 /* Make this a separate argument. */
4405 do_spec_1 (" ", 0, NULL
);
4408 if (!pl
->require_machine_suffix
)
4410 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4412 do_spec_1 ("-L", 0, NULL
);
4413 #ifdef SPACE_AFTER_L_OPTION
4414 do_spec_1 (" ", 0, NULL
);
4416 do_spec_1 (pl
->prefix
, 1, NULL
);
4417 do_spec_1 (multilib_dir
, 1, NULL
);
4418 /* Make this a separate argument. */
4419 do_spec_1 (" ", 0, NULL
);
4425 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4427 do_spec_1 ("-L", 0, NULL
);
4428 #ifdef SPACE_AFTER_L_OPTION
4429 do_spec_1 (" ", 0, NULL
);
4431 do_spec_1 (pl
->prefix
, 1, NULL
);
4432 /* Remove slash from machine_suffix. */
4433 if (strlen (machine_suffix
) >= bufsize
)
4434 bufsize
= strlen (machine_suffix
) * 2 + 1;
4435 buffer
= (char *) xrealloc (buffer
, bufsize
);
4436 strcpy (buffer
, machine_suffix
);
4437 idx
= strlen (buffer
);
4438 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4439 buffer
[idx
- 1] = 0;
4440 do_spec_1 (buffer
, 1, NULL
);
4441 /* Make this a separate argument. */
4442 do_spec_1 (" ", 0, NULL
);
4445 if (!pl
->require_machine_suffix
)
4447 if (is_directory (pl
->prefix
, "", 1))
4449 do_spec_1 ("-L", 0, NULL
);
4450 #ifdef SPACE_AFTER_L_OPTION
4451 do_spec_1 (" ", 0, NULL
);
4453 /* Remove slash from pl->prefix. */
4454 if (strlen (pl
->prefix
) >= bufsize
)
4455 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4456 buffer
= (char *) xrealloc (buffer
, bufsize
);
4457 strcpy (buffer
, pl
->prefix
);
4458 idx
= strlen (buffer
);
4459 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4460 buffer
[idx
- 1] = 0;
4461 do_spec_1 (buffer
, 1, NULL
);
4462 /* Make this a separate argument. */
4463 do_spec_1 (" ", 0, NULL
);
4472 /* %efoo means report an error with `foo' as error message
4473 and don't execute any more commands for this file. */
4477 while (*p
!= 0 && *p
!= '\n')
4479 buf
= (char *) alloca (p
- q
+ 1);
4480 strncpy (buf
, q
, p
- q
);
4487 /* %nfoo means report an notice with `foo' on stderr. */
4491 while (*p
!= 0 && *p
!= '\n')
4493 buf
= (char *) alloca (p
- q
+ 1);
4494 strncpy (buf
, q
, p
- q
);
4496 notice ("%s\n", buf
);
4506 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4507 and it is not a directory, and it is writable, use it.
4508 Otherwise, fall through and treat this like any other
4511 if ((!save_temps_flag
)
4512 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4513 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4515 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4516 strlen (HOST_BIT_BUCKET
));
4517 delete_this_arg
= 0;
4526 struct temp_name
*t
;
4528 const char *suffix
= p
;
4529 char *saved_suffix
= NULL
;
4531 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4533 suffix_length
= p
- suffix
;
4534 if (p
[0] == '%' && p
[1] == 'O')
4537 /* We don't support extra suffix characters after %O. */
4538 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4540 if (suffix_length
== 0)
4541 suffix
= TARGET_OBJECT_SUFFIX
;
4545 = (char *) xmalloc (suffix_length
4546 + strlen (TARGET_OBJECT_SUFFIX
));
4547 strncpy (saved_suffix
, suffix
, suffix_length
);
4548 strcpy (saved_suffix
+ suffix_length
,
4549 TARGET_OBJECT_SUFFIX
);
4551 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4554 /* If the input_filename has the same suffix specified
4555 for the %g, %u, or %U, and -save-temps is specified,
4556 we could end up using that file as an intermediate
4557 thus clobbering the user's source file (.e.g.,
4558 gcc -save-temps foo.s would clobber foo.s with the
4559 output of cpp0). So check for this condition and
4560 generate a temp file as the intermediate. */
4562 if (save_temps_flag
)
4564 temp_filename_length
= basename_length
+ suffix_length
;
4565 temp_filename
= alloca (temp_filename_length
+ 1);
4566 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4567 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4569 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4570 if (strcmp (temp_filename
, input_filename
) != 0)
4572 struct stat st_temp
;
4574 /* Note, set_input() resets input_stat_set to 0. */
4575 if (input_stat_set
== 0)
4577 input_stat_set
= stat (input_filename
, &input_stat
);
4578 if (input_stat_set
>= 0)
4582 /* If we have the stat for the input_filename
4583 and we can do the stat for the temp_filename
4584 then the they could still refer to the same
4585 file if st_dev/st_ino's are the same. */
4587 if (input_stat_set
!= 1
4588 || stat (temp_filename
, &st_temp
) < 0
4589 || input_stat
.st_dev
!= st_temp
.st_dev
4590 || input_stat
.st_ino
!= st_temp
.st_ino
)
4592 temp_filename
= save_string (temp_filename
,
4593 temp_filename_length
+ 1);
4594 obstack_grow (&obstack
, temp_filename
,
4595 temp_filename_length
);
4602 /* See if we already have an association of %g/%u/%U and
4604 for (t
= temp_names
; t
; t
= t
->next
)
4605 if (t
->length
== suffix_length
4606 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4607 && t
->unique
== (c
!= 'g'))
4610 /* Make a new association if needed. %u and %j
4612 if (t
== 0 || c
== 'u' || c
== 'j')
4616 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4617 t
->next
= temp_names
;
4620 t
->length
= suffix_length
;
4623 t
->suffix
= saved_suffix
;
4624 saved_suffix
= NULL
;
4627 t
->suffix
= save_string (suffix
, suffix_length
);
4628 t
->unique
= (c
!= 'g');
4629 temp_filename
= make_temp_file (t
->suffix
);
4630 temp_filename_length
= strlen (temp_filename
);
4631 t
->filename
= temp_filename
;
4632 t
->filename_length
= temp_filename_length
;
4636 free (saved_suffix
);
4638 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4639 delete_this_arg
= 1;
4645 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4651 struct prefix_list
*pl
= include_prefixes
.plist
;
4653 if (gcc_exec_prefix
)
4655 do_spec_1 ("-iprefix", 1, NULL
);
4656 /* Make this a separate argument. */
4657 do_spec_1 (" ", 0, NULL
);
4658 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4659 do_spec_1 (" ", 0, NULL
);
4662 for (; pl
; pl
= pl
->next
)
4664 do_spec_1 ("-isystem", 1, NULL
);
4665 /* Make this a separate argument. */
4666 do_spec_1 (" ", 0, NULL
);
4667 do_spec_1 (pl
->prefix
, 1, NULL
);
4668 do_spec_1 (" ", 0, NULL
);
4675 int max
= n_infiles
;
4676 max
+= lang_specific_extra_outfiles
;
4678 for (i
= 0; i
< max
; i
++)
4680 store_arg (outfiles
[i
], 0, 0);
4685 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4690 this_is_library_file
= 1;
4694 this_is_output_file
= 1;
4699 int cur_index
= argbuf_index
;
4700 /* Handle the {...} following the %W. */
4703 p
= handle_braces (p
+ 1);
4706 /* If any args were output, mark the last one for deletion
4708 if (argbuf_index
!= cur_index
)
4709 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4713 /* %x{OPTION} records OPTION for %X to output. */
4719 /* Skip past the option value and make a copy. */
4724 string
= save_string (p1
+ 1, p
- p1
- 2);
4726 /* See if we already recorded this option. */
4727 for (i
= 0; i
< n_linker_options
; i
++)
4728 if (! strcmp (string
, linker_options
[i
]))
4734 /* This option is new; add it. */
4735 add_linker_option (string
, strlen (string
));
4739 /* Dump out the options accumulated previously using %x. */
4741 for (i
= 0; i
< n_linker_options
; i
++)
4743 do_spec_1 (linker_options
[i
], 1, NULL
);
4744 /* Make each accumulated option a separate argument. */
4745 do_spec_1 (" ", 0, NULL
);
4749 /* Dump out the options accumulated previously using -Wa,. */
4751 for (i
= 0; i
< n_assembler_options
; i
++)
4753 do_spec_1 (assembler_options
[i
], 1, NULL
);
4754 /* Make each accumulated option a separate argument. */
4755 do_spec_1 (" ", 0, NULL
);
4759 /* Dump out the options accumulated previously using -Wp,. */
4761 for (i
= 0; i
< n_preprocessor_options
; i
++)
4763 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4764 /* Make each accumulated option a separate argument. */
4765 do_spec_1 (" ", 0, NULL
);
4769 /* Here are digits and numbers that just process
4770 a certain constant string as a spec. */
4773 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4779 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4785 value
= do_spec_1 (asm_spec
, 0, NULL
);
4791 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4798 const char *const spec
4799 = (input_file_compiler
->cpp_spec
4800 ? input_file_compiler
->cpp_spec
4802 value
= do_spec_1 (spec
, 0, NULL
);
4809 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4815 value
= do_spec_1 (link_spec
, 0, NULL
);
4821 value
= do_spec_1 (lib_spec
, 0, NULL
);
4827 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4833 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4839 len
= strlen (multilib_dir
);
4840 obstack_blank (&obstack
, len
+ 1);
4841 p
= obstack_next_free (&obstack
) - (len
+ 1);
4844 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4845 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4851 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4855 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4859 if (! strncmp (y
, "-D", 2))
4860 /* Copy the whole option. */
4861 while (*y
&& *y
!= ' ' && *y
!= '\t')
4863 else if (*y
== ' ' || *y
== '\t')
4864 /* Copy whitespace to the result. */
4866 /* Don't copy other options. */
4873 value
= do_spec_1 (buf
, 0, NULL
);
4881 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4885 /* Copy all of CPP_PREDEFINES into BUF,
4886 but force them all into the reserved name space if they
4887 aren't already there. The reserved name space is all
4888 identifiers beginning with two underscores or with one
4889 underscore and a capital letter. We do the forcing by
4890 adding up to two underscores to the beginning and end
4891 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4896 if (! strncmp (y
, "-D", 2))
4905 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4907 /* Stick __ at front of macro name. */
4911 /* Arrange to stick __ at the end as well. */
4915 /* Copy the macro name. */
4916 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4929 /* Copy the value given, if any. */
4930 while (*y
&& *y
!= ' ' && *y
!= '\t')
4933 else if (*y
== ' ' || *y
== '\t')
4934 /* Copy whitespace to the result. */
4936 /* Don't copy -A options */
4942 /* Copy all of CPP_PREDEFINES into BUF,
4943 but put __ after every -D. */
4947 if (! strncmp (y
, "-D", 2))
4953 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4955 /* Stick -D__ at front of macro name. */
4962 /* Copy the macro name. */
4963 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4966 /* Copy the value given, if any. */
4967 while (*y
&& *y
!= ' ' && *y
!= '\t')
4972 /* Do not copy this macro - we have just done it before */
4973 while (*y
&& *y
!= ' ' && *y
!= '\t')
4977 else if (*y
== ' ' || *y
== '\t')
4978 /* Copy whitespace to the result. */
4980 /* Don't copy -A options. */
4986 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4990 if (! strncmp (y
, "-A", 2))
4991 /* Copy the whole option. */
4992 while (*y
&& *y
!= ' ' && *y
!= '\t')
4994 else if (*y
== ' ' || *y
== '\t')
4995 /* Copy whitespace to the result. */
4997 /* Don't copy other options. */
5004 value
= do_spec_1 (buf
, 0, NULL
);
5011 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5016 /* Here we define characters other than letters and digits. */
5019 p
= handle_braces (p
);
5025 obstack_1grow (&obstack
, '%');
5032 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5034 suffix_subst
= save_string (p
- 1, len
+ 1);
5040 if (soft_matched_part
)
5042 do_spec_1 (soft_matched_part
, 1, NULL
);
5043 do_spec_1 (" ", 0, NULL
);
5046 /* Catch the case where a spec string contains something like
5047 '%{foo:%*}'. ie there is no * in the pattern on the left
5048 hand side of the :. */
5049 error ("spec failure: '%%*' has not been initialized by pattern match");
5052 /* Process a string found as the value of a spec given by name.
5053 This feature allows individual machine descriptions
5054 to add and use their own specs.
5055 %[...] modifies -D options the way %P does;
5056 %(...) uses the spec unmodified. */
5058 error ("warning: use of obsolete %%[ operator in specs");
5061 const char *name
= p
;
5062 struct spec_list
*sl
;
5065 /* The string after the S/P is the name of a spec that is to be
5067 while (*p
&& *p
!= ')' && *p
!= ']')
5070 /* See if it's in the list. */
5071 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5072 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5074 name
= *(sl
->ptr_spec
);
5076 notice ("Processing spec %c%s%c, which is '%s'\n",
5077 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5086 value
= do_spec_1 (name
, 0, NULL
);
5092 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5094 const char *y
= name
;
5097 /* Copy all of NAME into BUF, but put __ after
5098 every -D and at the end of each arg. */
5101 if (! strncmp (y
, "-D", 2))
5112 && (*y
== ' ' || *y
== '\t' || *y
== '='
5113 || *y
== '}' || *y
== 0))
5126 value
= do_spec_1 (buf
, 0, NULL
);
5132 /* Discard the closing paren or bracket. */
5140 int c1
= *p
++; /* Select first or second version number. */
5141 const char *v
= compiler_version
;
5143 static const char zeroc
= '0';
5145 /* The format of the version string is
5146 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5148 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5149 while (! ISDIGIT (*v
))
5151 if (v
> compiler_version
&& v
[-1] != '-')
5154 /* If desired, advance to second version number. */
5157 /* Set V after the first period. */
5158 while (ISDIGIT (*v
))
5165 /* If desired, advance to third version number.
5166 But don't complain if it's not present */
5169 /* Set V after the second period. */
5170 while (ISDIGIT (*v
))
5172 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5178 /* Set Q at the next period or at the end. */
5180 while (ISDIGIT (*q
))
5182 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5186 /* Put that part into the command. */
5187 obstack_grow (&obstack
, v
, q
- v
);
5189 /* Default to "0" */
5190 obstack_grow (&obstack
, &zeroc
, 1);
5196 if (input_from_pipe
)
5197 do_spec_1 ("-", 0, NULL
);
5201 error ("spec failure: unrecognized spec option '%c'", c
);
5207 /* Backslash: treat next character as ordinary. */
5212 /* Ordinary character: put it into the current argument. */
5213 obstack_1grow (&obstack
, c
);
5217 /* End of string. */
5221 /* Return 0 if we call do_spec_1 and that returns -1. */
5227 const char *filter
, *body
= NULL
, *endbody
= NULL
;
5229 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5232 int include_blanks
= 1;
5233 int elide_switch
= 0;
5238 /* A '^' after the open-brace means to not give blanks before args. */
5245 /* A `|' after the open-brace means,
5246 if the test fails, output a single minus sign rather than nothing.
5247 This is used in %{|!pipe:...}. */
5254 /* A `<' after the open-brace means that the switch should be
5255 removed from the command-line. */
5261 negate
= suffix
= 0;
5264 /* A `!' after the open-brace negates the condition:
5265 succeed if the specified switch is not present. */
5269 /* A `.' after the open-brace means test against the current suffix. */
5278 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
5280 /* It doesn't make sense to mix elision with other flags. We
5281 could fatal() here, but the standard seems to be to abort. */
5287 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5290 if (*p
== '|' && (pipe_p
|| ordered
))
5295 if (*p
!= '}' && *p
!= '&')
5311 fatal ("mismatched braces in specs");
5317 body
= p
, endbody
= p
+ 1;
5322 int found
= (input_suffix
!= 0
5323 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5324 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5330 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5333 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5335 /* Substitute all matching switches as separate args. */
5338 for (i
= 0; i
< n_switches
; i
++)
5339 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5340 && check_live_switch (i
, p
- 1 - filter
))
5344 switches
[i
].live_cond
= SWITCH_IGNORE
;
5345 switches
[i
].validated
= 1;
5348 ordered
= 1, switches
[i
].ordering
= 1;
5353 /* Test for presence of the specified switch. */
5357 /* If name specified ends in *, as in {x*:...},
5358 check for %* and handle that case. */
5359 if (p
[-1] == '*' && !negate
)
5362 const char *r
= body
;
5364 /* First see whether we have %*. */
5368 if (*r
== '%' && r
[1] == '*')
5372 /* If we do, handle that case. */
5375 /* Substitute all matching switches as separate args.
5376 But do this by substituting for %*
5377 in the text that follows the colon. */
5379 unsigned hard_match_len
= p
- filter
- 1;
5380 char *string
= save_string (body
, endbody
- body
- 1);
5382 for (i
= 0; i
< n_switches
; i
++)
5383 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5384 && check_live_switch (i
, -1))
5386 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5387 /* Pass any arguments this switch has. */
5388 give_switch (i
, 1, 1);
5389 suffix_subst
= NULL
;
5392 /* We didn't match. Try again. */
5399 /* If name specified ends in *, as in {x*:...},
5400 check for presence of any switch name starting with x. */
5403 for (i
= 0; i
< n_switches
; i
++)
5405 unsigned hard_match_len
= p
- filter
- 1;
5407 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5408 && check_live_switch (i
, hard_match_len
))
5415 /* Otherwise, check for presence of exact name specified. */
5418 for (i
= 0; i
< n_switches
; i
++)
5420 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5421 && switches
[i
].part1
[p
- filter
] == 0
5422 && check_live_switch (i
, -1))
5430 /* If it is as desired (present for %{s...}, absent for %{!s...})
5431 then substitute either the switch or the specified
5432 conditional text. */
5433 if (present
!= negate
)
5437 switches
[i
].live_cond
= SWITCH_IGNORE
;
5438 switches
[i
].validated
= 1;
5440 else if (ordered
|| *p
== '&')
5441 ordered
= 1, switches
[i
].ordering
= 1;
5443 give_switch (i
, 0, include_blanks
);
5445 /* Even if many alternatives are matched, only output once. */
5450 /* Here if a %{|...} conditional fails: output a minus sign,
5451 which means "standard output" or "standard input". */
5452 do_spec_1 ("-", 0, NULL
);
5457 /* We didn't match; try again. */
5464 goto next_ampersand
;
5470 /* Doing this set of switches later preserves their command-line
5471 ordering. This is needed for e.g. -U, -D and -A. */
5472 for (i
= 0; i
< n_switches
; i
++)
5473 if (switches
[i
].ordering
== 1)
5475 switches
[i
].ordering
= 0;
5476 give_switch (i
, 0, include_blanks
);
5479 /* Process the spec just once, regardless of match count. */
5482 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5490 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5491 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5492 spec, or -1 if either exact match or %* is used.
5494 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5495 whose value does not begin with "no-" is obsoleted by the same value
5496 with the "no-", similarly for a switch with the "no-" prefix. */
5499 check_live_switch (switchnum
, prefix_length
)
5503 const char *name
= switches
[switchnum
].part1
;
5506 /* In the common case of {<at-most-one-letter>*}, a negating
5507 switch would always match, so ignore that case. We will just
5508 send the conflicting switches to the compiler phase. */
5509 if (prefix_length
>= 0 && prefix_length
<= 1)
5512 /* If we already processed this switch and determined if it was
5513 live or not, return our past determination. */
5514 if (switches
[switchnum
].live_cond
!= 0)
5515 return switches
[switchnum
].live_cond
> 0;
5517 /* Now search for duplicate in a manner that depends on the name. */
5521 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5522 if (switches
[i
].part1
[0] == 'O')
5524 switches
[switchnum
].validated
= 1;
5525 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5530 case 'W': case 'f': case 'm':
5531 if (! strncmp (name
+ 1, "no-", 3))
5533 /* We have Xno-YYY, search for XYYY. */
5534 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5535 if (switches
[i
].part1
[0] == name
[0]
5536 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5538 switches
[switchnum
].validated
= 1;
5539 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5545 /* We have XYYY, search for Xno-YYY. */
5546 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5547 if (switches
[i
].part1
[0] == name
[0]
5548 && switches
[i
].part1
[1] == 'n'
5549 && switches
[i
].part1
[2] == 'o'
5550 && switches
[i
].part1
[3] == '-'
5551 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5553 switches
[switchnum
].validated
= 1;
5554 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5561 /* Otherwise the switch is live. */
5562 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5566 /* Pass a switch to the current accumulating command
5567 in the same form that we received it.
5568 SWITCHNUM identifies the switch; it is an index into
5569 the vector of switches gcc received, which is `switches'.
5570 This cannot fail since it never finishes a command line.
5572 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5574 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5578 give_switch (switchnum
, omit_first_word
, include_blanks
)
5580 int omit_first_word
;
5583 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5586 if (!omit_first_word
)
5588 do_spec_1 ("-", 0, NULL
);
5589 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5592 if (switches
[switchnum
].args
!= 0)
5595 for (p
= switches
[switchnum
].args
; *p
; p
++)
5597 const char *arg
= *p
;
5600 do_spec_1 (" ", 0, NULL
);
5603 unsigned length
= strlen (arg
);
5606 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5607 if (arg
[length
] == '.')
5609 ((char *)arg
)[length
] = 0;
5613 do_spec_1 (arg
, 1, NULL
);
5615 ((char *)arg
)[length
] = '.';
5616 do_spec_1 (suffix_subst
, 1, NULL
);
5619 do_spec_1 (arg
, 1, NULL
);
5623 do_spec_1 (" ", 0, NULL
);
5624 switches
[switchnum
].validated
= 1;
5627 /* Search for a file named NAME trying various prefixes including the
5628 user's -B prefix and some standard ones.
5629 Return the absolute file name found. If nothing is found, return NAME. */
5637 /* Try multilib_dir if it is defined. */
5638 if (multilib_dir
!= NULL
)
5640 const char *const try = ACONCAT ((multilib_dir
, dir_separator_str
, name
, NULL
));
5642 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5644 /* If we don't find it in the multi library dir, then fall
5645 through and look for it in the normal places. */
5646 if (newname
!= NULL
)
5650 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5651 return newname
? newname
: name
;
5654 /* Determine whether a directory exists. If LINKER, return 0 for
5655 certain fixed names not needed by the linker. If not LINKER, it is
5656 only important to return 0 if the host machine has a small ARG_MAX
5660 is_directory (path1
, path2
, linker
)
5665 int len1
= strlen (path1
);
5666 int len2
= strlen (path2
);
5667 char *path
= (char *) alloca (3 + len1
+ len2
);
5671 #ifndef SMALL_ARG_MAX
5676 /* Construct the path from the two parts. Ensure the string ends with "/.".
5677 The resulting path will be a directory even if the given path is a
5679 memcpy (path
, path1
, len1
);
5680 memcpy (path
+ len1
, path2
, len2
);
5681 cp
= path
+ len1
+ len2
;
5682 if (!IS_DIR_SEPARATOR (cp
[-1]))
5683 *cp
++ = DIR_SEPARATOR
;
5687 /* Exclude directories that the linker is known to search. */
5690 && strcmp (path
, concat (dir_separator_str
, "lib",
5691 dir_separator_str
, ".", NULL
)) == 0)
5693 && strcmp (path
, concat (dir_separator_str
, "usr",
5694 dir_separator_str
, "lib",
5695 dir_separator_str
, ".", NULL
)) == 0)))
5698 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5701 /* Set up the various global variables to indicate that we're processing
5702 the input file named FILENAME. */
5705 set_input (filename
)
5706 const char *filename
;
5710 input_filename
= filename
;
5711 input_filename_length
= strlen (input_filename
);
5713 input_basename
= input_filename
;
5714 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5715 /* Skip drive name so 'x:foo' is handled properly. */
5716 if (input_basename
[1] == ':')
5717 input_basename
+= 2;
5719 for (p
= input_basename
; *p
; p
++)
5720 if (IS_DIR_SEPARATOR (*p
))
5721 input_basename
= p
+ 1;
5723 /* Find a suffix starting with the last period,
5724 and set basename_length to exclude that suffix. */
5725 basename_length
= strlen (input_basename
);
5726 suffixed_basename_length
= basename_length
;
5727 p
= input_basename
+ basename_length
;
5728 while (p
!= input_basename
&& *p
!= '.')
5730 if (*p
== '.' && p
!= input_basename
)
5732 basename_length
= p
- input_basename
;
5733 input_suffix
= p
+ 1;
5738 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5739 we will need to do a stat on the input_filename. The
5740 INPUT_STAT_SET signals that the stat is needed. */
5744 /* On fatal signals, delete all the temporary files. */
5747 fatal_error (signum
)
5750 signal (signum
, SIG_DFL
);
5751 delete_failure_queue ();
5752 delete_temp_files ();
5753 /* Get the same signal again, this time not handled,
5754 so its normal effect occurs. */
5755 kill (getpid (), signum
);
5758 extern int main
PARAMS ((int, const char *const *));
5763 const char *const *argv
;
5767 int linker_was_run
= 0;
5768 char *explicit_link_files
;
5771 struct user_specs
*uptr
;
5773 p
= argv
[0] + strlen (argv
[0]);
5774 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5778 xmalloc_set_program_name (programname
);
5780 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5781 /* Perform host dependent initialization when needed. */
5782 GCC_DRIVER_HOST_INITIALIZATION
;
5785 gcc_init_libintl ();
5787 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5788 signal (SIGINT
, fatal_error
);
5790 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5791 signal (SIGHUP
, fatal_error
);
5793 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5794 signal (SIGTERM
, fatal_error
);
5796 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5797 signal (SIGPIPE
, fatal_error
);
5800 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5801 receive the signal. A different setting is inheritable */
5802 signal (SIGCHLD
, SIG_DFL
);
5806 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5808 obstack_init (&obstack
);
5810 /* Build multilib_select, et. al from the separate lines that make up each
5811 multilib selection. */
5813 const char *const *q
= multilib_raw
;
5816 obstack_init (&multilib_obstack
);
5817 while ((p
= *q
++) != (char *) 0)
5818 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5820 obstack_1grow (&multilib_obstack
, 0);
5821 multilib_select
= obstack_finish (&multilib_obstack
);
5823 q
= multilib_matches_raw
;
5824 while ((p
= *q
++) != (char *) 0)
5825 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5827 obstack_1grow (&multilib_obstack
, 0);
5828 multilib_matches
= obstack_finish (&multilib_obstack
);
5830 q
= multilib_exclusions_raw
;
5831 while ((p
= *q
++) != (char *) 0)
5832 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5834 obstack_1grow (&multilib_obstack
, 0);
5835 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5838 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5841 obstack_1grow (&multilib_obstack
, ' ');
5842 obstack_grow (&multilib_obstack
,
5843 multilib_defaults_raw
[i
],
5844 strlen (multilib_defaults_raw
[i
]));
5848 obstack_1grow (&multilib_obstack
, 0);
5849 multilib_defaults
= obstack_finish (&multilib_obstack
);
5852 /* Set up to remember the pathname of gcc and any options
5853 needed for collect. We use argv[0] instead of programname because
5854 we need the complete pathname. */
5855 obstack_init (&collect_obstack
);
5856 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5857 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5858 putenv (obstack_finish (&collect_obstack
));
5860 #ifdef INIT_ENVIRONMENT
5861 /* Set up any other necessary machine specific environment variables. */
5862 putenv (INIT_ENVIRONMENT
);
5865 /* Make a table of what switches there are (switches, n_switches).
5866 Make a table of specified input files (infiles, n_infiles).
5867 Decode switches that are handled locally. */
5869 process_command (argc
, argv
);
5871 /* Initialize the vector of specs to just the default.
5872 This means one element containing 0s, as a terminator. */
5874 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5875 memcpy ((char *) compilers
, (char *) default_compilers
,
5876 sizeof default_compilers
);
5877 n_compilers
= n_default_compilers
;
5879 /* Read specs from a file if there is one. */
5881 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5882 spec_version
, dir_separator_str
, NULL
);
5883 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5885 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5886 /* Read the specs file unless it is a default one. */
5887 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5888 read_specs (specs_file
, TRUE
);
5892 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5893 for any override of as, ld and libraries. */
5894 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5895 + strlen (just_machine_suffix
)
5896 + sizeof ("specs"));
5898 strcpy (specs_file
, standard_exec_prefix
);
5899 strcat (specs_file
, just_machine_suffix
);
5900 strcat (specs_file
, "specs");
5901 if (access (specs_file
, R_OK
) == 0)
5902 read_specs (specs_file
, TRUE
);
5904 /* If not cross-compiling, look for startfiles in the standard places. */
5905 if (*cross_compile
== '0')
5907 if (*md_exec_prefix
)
5909 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5910 PREFIX_PRIORITY_LAST
, 0, NULL
);
5911 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5912 PREFIX_PRIORITY_LAST
, 0, NULL
);
5915 if (*md_startfile_prefix
)
5916 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5917 PREFIX_PRIORITY_LAST
, 0, NULL
);
5919 if (*md_startfile_prefix_1
)
5920 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5921 PREFIX_PRIORITY_LAST
, 0, NULL
);
5923 /* If standard_startfile_prefix is relative, base it on
5924 standard_exec_prefix. This lets us move the installed tree
5925 as a unit. If GCC_EXEC_PREFIX is defined, base
5926 standard_startfile_prefix on that as well. */
5927 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5928 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5929 PREFIX_PRIORITY_LAST
, 0, NULL
);
5932 if (gcc_exec_prefix
)
5933 add_prefix (&startfile_prefixes
,
5934 concat (gcc_exec_prefix
, machine_suffix
,
5935 standard_startfile_prefix
, NULL
),
5936 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5937 add_prefix (&startfile_prefixes
,
5938 concat (standard_exec_prefix
,
5940 standard_startfile_prefix
, NULL
),
5941 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5944 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5945 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5946 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5947 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5948 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5949 add_prefix (&startfile_prefixes
, "./", NULL
,
5950 PREFIX_PRIORITY_LAST
, 1, NULL
);
5955 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5957 add_prefix (&startfile_prefixes
,
5958 concat (gcc_exec_prefix
, machine_suffix
,
5959 standard_startfile_prefix
, NULL
),
5960 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5963 /* Process any user specified specs in the order given on the command
5965 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5967 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5968 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5971 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5972 if (gcc_exec_prefix
)
5973 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
5974 spec_version
, dir_separator_str
, NULL
);
5976 /* Now we have the specs.
5977 Set the `valid' bits for switches that match anything in any spec. */
5979 validate_all_switches ();
5981 /* Now that we have the switches and the specs, set
5982 the subdirectory based on the options. */
5983 set_multilib_dir ();
5985 /* Warn about any switches that no pass was interested in. */
5987 for (i
= 0; (int) i
< n_switches
; i
++)
5988 if (! switches
[i
].validated
)
5989 error ("unrecognized option `-%s'", switches
[i
].part1
);
5991 /* Obey some of the options. */
5993 if (print_search_dirs
)
5995 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5996 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5997 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6001 if (print_file_name
)
6003 printf ("%s\n", find_file (print_file_name
));
6007 if (print_prog_name
)
6009 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
6010 printf ("%s\n", (newname
? newname
: print_prog_name
));
6014 if (print_multi_lib
)
6016 print_multilib_info ();
6020 if (print_multi_directory
)
6022 if (multilib_dir
== NULL
)
6025 printf ("%s\n", multilib_dir
);
6029 if (target_help_flag
)
6031 /* Print if any target specific options. */
6033 /* We do not exit here. Instead we have created a fake input file
6034 called 'target-dummy' which needs to be compiled, and we pass this
6035 on to the various sub-processes, along with the --target-help
6039 if (print_help_list
)
6045 printf (_("\nFor bug reporting instructions, please see:\n"));
6046 printf ("%s.\n", GCCBUGURL
);
6051 /* We do not exit here. Instead we have created a fake input file
6052 called 'help-dummy' which needs to be compiled, and we pass this
6053 on the various sub-processes, along with the --help switch. */
6061 notice ("Configured with: %s\n", configuration_arguments
);
6063 #ifdef THREAD_MODEL_SPEC
6064 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6065 but there's no point in doing all this processing just to get
6066 thread_model back. */
6067 obstack_init (&obstack
);
6068 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6069 obstack_1grow (&obstack
, '\0');
6070 thrmod
= obstack_finish (&obstack
);
6072 thrmod
= thread_model
;
6075 notice ("Thread model: %s\n", thrmod
);
6077 /* compiler_version is truncated at the first space when initialized
6078 from version string, so truncate version_string at the first space
6079 before comparing. */
6080 for (n
= 0; version_string
[n
]; n
++)
6081 if (version_string
[n
] == ' ')
6084 if (! strncmp (version_string
, compiler_version
, n
)
6085 && compiler_version
[n
] == 0)
6086 notice ("gcc version %s\n", version_string
);
6088 notice ("gcc driver version %s executing gcc version %s\n",
6089 version_string
, compiler_version
);
6095 if (n_infiles
== added_libraries
)
6096 fatal ("no input files");
6098 /* Make a place to record the compiler output file names
6099 that correspond to the input files. */
6102 i
+= lang_specific_extra_outfiles
;
6103 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6105 /* Record which files were specified explicitly as link input. */
6107 explicit_link_files
= xcalloc (1, n_infiles
);
6109 for (i
= 0; (int) i
< n_infiles
; i
++)
6111 int this_file_error
= 0;
6113 /* Tell do_spec what to substitute for %i. */
6115 input_file_number
= i
;
6116 set_input (infiles
[i
].name
);
6118 /* Use the same thing in %o, unless cp->spec says otherwise. */
6120 outfiles
[i
] = input_filename
;
6122 /* Figure out which compiler from the file's suffix. */
6125 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6126 infiles
[i
].language
);
6128 if (input_file_compiler
)
6130 /* Ok, we found an applicable compiler. Run its spec. */
6132 if (input_file_compiler
->spec
[0] == '#')
6134 error ("%s: %s compiler not installed on this system",
6135 input_filename
, &input_file_compiler
->spec
[1]);
6136 this_file_error
= 1;
6140 value
= do_spec (input_file_compiler
->spec
);
6142 this_file_error
= 1;
6146 /* If this file's name does not contain a recognized suffix,
6147 record it as explicit linker input. */
6150 explicit_link_files
[i
] = 1;
6152 /* Clear the delete-on-failure queue, deleting the files in it
6153 if this compilation failed. */
6155 if (this_file_error
)
6157 delete_failure_queue ();
6160 /* If this compilation succeeded, don't delete those files later. */
6161 clear_failure_queue ();
6164 /* Reset the output file name to the first input file name, for use
6165 with %b in LINK_SPEC on a target that prefers not to emit a.out
6168 set_input (infiles
[0].name
);
6170 if (error_count
== 0)
6172 /* Make sure INPUT_FILE_NUMBER points to first available open
6174 input_file_number
= n_infiles
;
6175 if (lang_specific_pre_link ())
6179 /* Run ld to link all the compiler output files. */
6181 if (error_count
== 0)
6183 int tmp
= execution_count
;
6185 /* We'll use ld if we can't find collect2. */
6186 if (! strcmp (linker_name_spec
, "collect2"))
6188 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
6190 linker_name_spec
= "ld";
6192 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6194 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6195 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6197 value
= do_spec (link_command_spec
);
6200 linker_was_run
= (tmp
!= execution_count
);
6203 /* If options said don't run linker,
6204 complain about input files to be given to the linker. */
6206 if (! linker_was_run
&& error_count
== 0)
6207 for (i
= 0; (int) i
< n_infiles
; i
++)
6208 if (explicit_link_files
[i
])
6209 error ("%s: linker input file unused because linking not done",
6212 /* Delete some or all of the temporary files we made. */
6215 delete_failure_queue ();
6216 delete_temp_files ();
6218 if (print_help_list
)
6220 printf (("\nFor bug reporting instructions, please see:\n"));
6221 printf ("%s\n", GCCBUGURL
);
6224 return (signal_count
!= 0 ? 2
6225 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6229 /* Find the proper compilation spec for the file name NAME,
6230 whose length is LENGTH. LANGUAGE is the specified language,
6231 or 0 if this file is to be passed to the linker. */
6233 static struct compiler
*
6234 lookup_compiler (name
, length
, language
)
6237 const char *language
;
6239 struct compiler
*cp
;
6241 /* If this was specified by the user to be a linker input, indicate that. */
6242 if (language
!= 0 && language
[0] == '*')
6245 /* Otherwise, look for the language, if one is spec'd. */
6248 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6249 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6252 error ("language %s not recognized", language
);
6256 /* Look for a suffix. */
6257 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6259 if (/* The suffix `-' matches only the file name `-'. */
6260 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6261 || (strlen (cp
->suffix
) < length
6262 /* See if the suffix matches the end of NAME. */
6263 && !strcmp (cp
->suffix
,
6264 name
+ length
- strlen (cp
->suffix
))
6269 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6270 /* look again, but case-insensitively this time. */
6272 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6274 if (/* The suffix `-' matches only the file name `-'. */
6275 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6276 || (strlen (cp
->suffix
) < length
6277 /* See if the suffix matches the end of NAME. */
6278 && ((!strcmp (cp
->suffix
,
6279 name
+ length
- strlen (cp
->suffix
))
6280 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6281 && !strcasecmp (cp
->suffix
,
6282 name
+ length
- strlen (cp
->suffix
)))
6288 if (cp
>= compilers
)
6290 if (cp
->spec
[0] != '@')
6291 /* A non-alias entry: return it. */
6294 /* An alias entry maps a suffix to a language.
6295 Search for the language; pass 0 for NAME and LENGTH
6296 to avoid infinite recursion if language not found. */
6297 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6303 save_string (s
, len
)
6307 char *result
= xmalloc (len
+ 1);
6309 memcpy (result
, s
, len
);
6315 pfatal_with_name (name
)
6318 perror_with_name (name
);
6319 delete_temp_files ();
6324 perror_with_name (name
)
6327 error ("%s: %s", name
, xstrerror (errno
));
6331 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6332 const char *errmsg_fmt
;
6333 const char *errmsg_arg
;
6337 int save_errno
= errno
;
6339 /* Space for trailing '\0' is in %s. */
6340 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6341 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6347 pfatal_with_name (errmsg_fmt
);
6350 /* Output an error message and exit */
6355 fatal ("internal gcc abort");
6358 /* Output an error message and exit */
6361 fatal
VPARAMS ((const char *msgid
, ...))
6363 VA_OPEN (ap
, msgid
);
6364 VA_FIXEDARG (ap
, const char *, msgid
);
6366 fprintf (stderr
, "%s: ", programname
);
6367 vfprintf (stderr
, _(msgid
), ap
);
6369 fprintf (stderr
, "\n");
6370 delete_temp_files ();
6375 error
VPARAMS ((const char *msgid
, ...))
6377 VA_OPEN (ap
, msgid
);
6378 VA_FIXEDARG (ap
, const char *, msgid
);
6380 fprintf (stderr
, "%s: ", programname
);
6381 vfprintf (stderr
, _(msgid
), ap
);
6384 fprintf (stderr
, "\n");
6388 notice
VPARAMS ((const char *msgid
, ...))
6390 VA_OPEN (ap
, msgid
);
6391 VA_FIXEDARG (ap
, const char *, msgid
);
6393 vfprintf (stderr
, _(msgid
), ap
);
6398 validate_all_switches ()
6400 struct compiler
*comp
;
6403 struct spec_list
*spec
;
6405 for (comp
= compilers
; comp
->spec
; comp
++)
6409 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6410 /* We have a switch spec. */
6411 validate_switches (p
+ 1);
6414 /* Look through the linked list of specs read from the specs file. */
6415 for (spec
= specs
; spec
; spec
= spec
->next
)
6417 p
= *(spec
->ptr_spec
);
6419 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6420 /* We have a switch spec. */
6421 validate_switches (p
+ 1);
6424 p
= link_command_spec
;
6426 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6427 /* We have a switch spec. */
6428 validate_switches (p
+ 1);
6431 /* Look at the switch-name that comes after START
6432 and mark as valid all supplied switches that match it. */
6435 validate_switches (start
)
6438 const char *p
= start
;
6455 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6460 else if (p
[-1] == '*')
6462 /* Mark all matching switches as valid. */
6463 for (i
= 0; i
< n_switches
; i
++)
6464 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6465 switches
[i
].validated
= 1;
6469 /* Mark an exact matching switch as valid. */
6470 for (i
= 0; i
< n_switches
; i
++)
6472 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6473 && switches
[i
].part1
[p
- filter
] == 0)
6474 switches
[i
].validated
= 1;
6478 if (*p
++ == '|' || p
[-1] == '&')
6482 /* Check whether a particular argument was used. The first time we
6483 canonicalize the switches to keep only the ones we care about. */
6493 const char *replace
;
6498 static struct mswitchstr
*mswitches
;
6499 static int n_mswitches
;
6504 struct mswitchstr
*matches
;
6508 /* Break multilib_matches into the component strings of string
6509 and replacement string. */
6510 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6515 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6517 q
= multilib_matches
;
6527 matches
[i
].len
= q
- matches
[i
].str
;
6529 matches
[i
].replace
= ++q
;
6530 while (*q
!= ';' && *q
!= '\0')
6536 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6542 /* Now build a list of the replacement string for switches that we care
6543 about. Make sure we allocate at least one entry. This prevents
6544 xmalloc from calling fatal, and prevents us from re-executing this
6547 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6548 * (n_switches
? n_switches
: 1));
6549 for (i
= 0; i
< n_switches
; i
++)
6551 int xlen
= strlen (switches
[i
].part1
);
6552 for (j
= 0; j
< cnt
; j
++)
6553 if (xlen
== matches
[j
].len
6554 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6556 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6557 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6558 mswitches
[n_mswitches
].replace
= (char *) 0;
6559 mswitches
[n_mswitches
].rep_len
= 0;
6566 for (i
= 0; i
< n_mswitches
; i
++)
6567 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6574 default_arg (p
, len
)
6578 const char *start
, *end
;
6580 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6582 while (*start
== ' ' || *start
== '\t')
6588 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6591 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6601 /* Work out the subdirectory to use based on the options. The format of
6602 multilib_select is a list of elements. Each element is a subdirectory
6603 name followed by a list of options followed by a semicolon. The format
6604 of multilib_exclusions is the same, but without the preceding
6605 directory. First gcc will check the exclusions, if none of the options
6606 beginning with an exclamation point are present, and all of the other
6607 options are present, then we will ignore this completely. Passing
6608 that, gcc will consider each multilib_select in turn using the same
6609 rules for matching the options. If a match is found, that subdirectory
6616 unsigned int this_path_len
;
6617 const char *this_path
, *this_arg
;
6621 p
= multilib_exclusions
;
6624 /* Ignore newlines. */
6631 /* Check the arguments. */
6645 while (*p
!= ' ' && *p
!= ';')
6652 if (*this_arg
!= '!')
6660 ok
= used_arg (this_arg
, p
- this_arg
);
6674 p
= multilib_select
;
6677 /* Ignore newlines. */
6684 /* Get the initial path. */
6692 this_path_len
= p
- this_path
;
6694 /* Check the arguments. */
6709 while (*p
!= ' ' && *p
!= ';')
6716 if (*this_arg
!= '!')
6724 /* If this is a default argument, we can just ignore it.
6725 This is true even if this_arg begins with '!'. Beginning
6726 with '!' does not mean that this argument is necessarily
6727 inappropriate for this library: it merely means that
6728 there is a more specific library which uses this
6729 argument. If this argument is a default, we need not
6730 consider that more specific library. */
6731 if (! default_arg (this_arg
, p
- this_arg
))
6733 ok
= used_arg (this_arg
, p
- this_arg
);
6744 if (this_path_len
!= 1
6745 || this_path
[0] != '.')
6747 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6748 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6749 new_multilib_dir
[this_path_len
] = '\0';
6750 multilib_dir
= new_multilib_dir
;
6759 /* Print out the multiple library subdirectory selection
6760 information. This prints out a series of lines. Each line looks
6761 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6762 required. Only the desired options are printed out, the negative
6763 matches. The options are print without a leading dash. There are
6764 no spaces to make it easy to use the information in the shell.
6765 Each subdirectory is printed only once. This assumes the ordering
6766 generated by the genmultilib script. Also, we leave out ones that match
6770 print_multilib_info ()
6772 const char *p
= multilib_select
;
6773 const char *last_path
= 0, *this_path
;
6775 unsigned int last_path_len
= 0;
6780 /* Ignore newlines. */
6787 /* Get the initial path. */
6796 /* Check for matches with the multilib_exclusions. We don't bother
6797 with the '!' in either list. If any of the exclusion rules match
6798 all of its options with the select rule, we skip it. */
6800 const char *e
= multilib_exclusions
;
6801 const char *this_arg
;
6806 /* Ignore newlines. */
6813 /* Check the arguments. */
6830 while (*e
!= ' ' && *e
!= ';')
6841 int len
= e
- this_arg
;
6848 while (*q
!= ' ' && *q
!= ';')
6855 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6856 default_arg (this_arg
, e
- this_arg
))
6886 /* If this is a duplicate, skip it. */
6887 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6888 && ! strncmp (last_path
, this_path
, last_path_len
));
6890 last_path
= this_path
;
6891 last_path_len
= p
- this_path
;
6894 /* If this directory requires any default arguments, we can skip
6895 it. We will already have printed a directory identical to
6896 this one which does not require that default argument. */
6914 while (*q
!= ' ' && *q
!= ';')
6922 && default_arg (arg
, q
- arg
))
6937 for (p1
= last_path
; p1
< p
; p1
++)
6956 use_arg
= *p
!= '!';
6961 while (*p
!= ' ' && *p
!= ';')
6976 /* If there are extra options, print them now. */
6977 if (multilib_extra
&& *multilib_extra
)
6979 int print_at
= TRUE
;
6982 for (q
= multilib_extra
; *q
!= '\0'; q
++)