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, 2003 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(). */
75 #include "coretypes.h"
78 #if ! defined( SIGCHLD ) && defined( SIGCLD )
79 # define SIGCHLD SIGCLD
87 #ifdef HAVE_SYS_RESOURCE_H
88 #include <sys/resource.h>
90 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
91 extern int getrusage
PARAMS ((int, struct rusage
*));
94 /* By default there is no special suffix for target executables. */
95 /* FIXME: when autoconf is fixed, remove the host check - dj */
96 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
97 #define HAVE_TARGET_EXECUTABLE_SUFFIX
100 /* By default there is no special suffix for host executables. */
101 #ifdef HOST_EXECUTABLE_SUFFIX
102 #define HAVE_HOST_EXECUTABLE_SUFFIX
104 #define HOST_EXECUTABLE_SUFFIX ""
107 /* By default, the suffix for target object files is ".o". */
108 #ifdef TARGET_OBJECT_SUFFIX
109 #define HAVE_TARGET_OBJECT_SUFFIX
111 #define TARGET_OBJECT_SUFFIX ".o"
114 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
116 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
117 #ifndef LIBRARY_PATH_ENV
118 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
122 #define kill(p,s) raise(s)
125 /* If a stage of compilation returns an exit status >= 1,
126 compilation of that file ceases. */
128 #define MIN_FATAL_STATUS 1
130 /* Flag set by cppspec.c to 1. */
133 /* Flag saying to pass the greatest exit code returned by a sub-process
134 to the calling program. */
135 static int pass_exit_codes
;
137 /* Definition of string containing the arguments given to configure. */
138 #include "configargs.h"
140 /* Flag saying to print the directories gcc will search through looking for
141 programs, libraries, etc. */
143 static int print_search_dirs
;
145 /* Flag saying to print the full filename of this file
146 as found through our usual search mechanism. */
148 static const char *print_file_name
= NULL
;
150 /* As print_file_name, but search for executable file. */
152 static const char *print_prog_name
= NULL
;
154 /* Flag saying to print the relative path we'd use to
155 find libgcc.a given the current compiler flags. */
157 static int print_multi_directory
;
159 /* Flag saying to print the relative path we'd use to
160 find OS libraries given the current compiler flags. */
162 static int print_multi_os_directory
;
164 /* Flag saying to print the list of subdirectories and
165 compiler flags used to select them in a standard form. */
167 static int print_multi_lib
;
169 /* Flag saying to print the command line options understood by gcc and its
172 static int print_help_list
;
174 /* Flag indicating whether we should print the command and arguments */
176 static int verbose_flag
;
178 /* Flag indicating whether we should ONLY print the command and
179 arguments (like verbose_flag) without executing the command.
180 Displayed arguments are quoted so that the generated command
181 line is suitable for execution. This is intended for use in
182 shell scripts to capture the driver-generated command line. */
183 static int verbose_only_flag
;
185 /* Flag indicating to print target specific command line options. */
187 static int target_help_flag
;
189 /* Flag indicating whether we should report subprocess execution times
190 (if this is supported by the system - see pexecute.c). */
192 static int report_times
;
194 /* Nonzero means place this string before uses of /, so that include
195 and library files can be found in an alternate location. */
197 #ifdef TARGET_SYSTEM_ROOT
198 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
200 static const char *target_system_root
= 0;
203 /* Nonzero means pass the updated target_system_root to the compiler. */
205 static int target_system_root_changed
;
207 /* Nonzero means append this string to target_system_root. */
209 static const char *target_sysroot_suffix
= 0;
211 /* Nonzero means append this string to target_system_root for headers. */
213 static const char *target_sysroot_hdrs_suffix
= 0;
215 /* Nonzero means write "temp" files in source directory
216 and use the source file's name in them, and don't delete them. */
218 static int save_temps_flag
;
220 /* Nonzero means use pipes to communicate between subprocesses.
221 Overridden by either of the above two flags. */
223 static int use_pipes
;
225 /* The compiler version. */
227 static const char *compiler_version
;
229 /* The target version specified with -V */
231 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
233 /* The target machine specified with -b. */
235 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
237 /* Nonzero if cross-compiling.
238 When -b is used, the value comes from the `specs' file. */
241 static const char *cross_compile
= "1";
243 static const char *cross_compile
= "0";
246 #ifdef MODIFY_TARGET_NAME
248 /* Information on how to alter the target name based on a command-line
249 switch. The only case we support now is simply appending or deleting a
250 string to or from the end of the first part of the configuration name. */
252 static const struct modify_target
254 const char *const sw
;
255 const enum add_del
{ADD
, DELETE
} add_del
;
256 const char *const str
;
258 modify_target
[] = MODIFY_TARGET_NAME
;
261 /* The number of errors that have occurred; the link phase will not be
262 run if this is nonzero. */
263 static int error_count
= 0;
265 /* Greatest exit code of sub-processes that has been encountered up to
267 static int greatest_status
= 1;
269 /* This is the obstack which we use to allocate many strings. */
271 static struct obstack obstack
;
273 /* This is the obstack to build an environment variable to pass to
274 collect2 that describes all of the relevant switches of what to
275 pass the compiler in building the list of pointers to constructors
278 static struct obstack collect_obstack
;
280 /* These structs are used to collect resource usage information for
282 #ifdef HAVE_GETRUSAGE
283 static struct rusage rus
, prus
;
286 /* Forward declaration for prototypes. */
289 static void init_spec
PARAMS ((void));
290 static void store_arg
PARAMS ((const char *, int, int));
291 static char *load_specs
PARAMS ((const char *));
292 static void read_specs
PARAMS ((const char *, int));
293 static void set_spec
PARAMS ((const char *, const char *));
294 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
295 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
296 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
297 static int access_check
PARAMS ((const char *, int));
298 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *,
300 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
301 const char *, int, int, int *, int));
302 static void add_sysrooted_prefix
PARAMS ((struct path_prefix
*, const char *,
303 const char *, int, int, int *, int));
304 static void translate_options
PARAMS ((int *, const char *const **));
305 static char *skip_whitespace
PARAMS ((char *));
306 static void delete_if_ordinary
PARAMS ((const char *));
307 static void delete_temp_files
PARAMS ((void));
308 static void delete_failure_queue
PARAMS ((void));
309 static void clear_failure_queue
PARAMS ((void));
310 static int check_live_switch
PARAMS ((int, int));
311 static const char *handle_braces
PARAMS ((const char *));
312 static inline bool input_suffix_matches
PARAMS ((const char *,
314 static inline bool switch_matches
PARAMS ((const char *,
316 static inline void mark_matching_switches
PARAMS ((const char *,
318 static inline void process_marked_switches
PARAMS ((void));
319 static const char *process_brace_body
PARAMS ((const char *, const char *,
320 const char *, int, int));
321 static const struct spec_function
*lookup_spec_function
PARAMS ((const char *));
322 static const char *eval_spec_function
PARAMS ((const char *, const char *));
323 static const char *handle_spec_function
PARAMS ((const char *));
324 static char *save_string
PARAMS ((const char *, int));
325 static void set_collect_gcc_options
PARAMS ((void));
326 static int do_spec_1
PARAMS ((const char *, int, const char *));
327 static int do_spec_2
PARAMS ((const char *));
328 static void do_option_spec
PARAMS ((const char *, const char *));
329 static void do_self_spec
PARAMS ((const char *));
330 static const char *find_file
PARAMS ((const char *));
331 static int is_directory
PARAMS ((const char *, const char *, int));
332 static const char *validate_switches
PARAMS ((const char *));
333 static void validate_all_switches
PARAMS ((void));
334 static inline void validate_switches_from_spec
PARAMS ((const char *));
335 static void give_switch
PARAMS ((int, int));
336 static int used_arg
PARAMS ((const char *, int));
337 static int default_arg
PARAMS ((const char *, int));
338 static void set_multilib_dir
PARAMS ((void));
339 static void print_multilib_info
PARAMS ((void));
340 static void perror_with_name
PARAMS ((const char *));
341 static void pfatal_pexecute
PARAMS ((const char *, const char *))
343 static void notice
PARAMS ((const char *, ...))
345 static void display_help
PARAMS ((void));
346 static void add_preprocessor_option
PARAMS ((const char *, int));
347 static void add_assembler_option
PARAMS ((const char *, int));
348 static void add_linker_option
PARAMS ((const char *, int));
349 static void process_command
PARAMS ((int, const char *const *));
350 static int execute
PARAMS ((void));
351 static void alloc_args
PARAMS ((void));
352 static void clear_args
PARAMS ((void));
353 static void fatal_error
PARAMS ((int));
354 #ifdef ENABLE_SHARED_LIBGCC
355 static void init_gcc_specs
PARAMS ((struct obstack
*,
356 const char *, const char *,
359 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
360 static const char *convert_filename
PARAMS ((const char *, int, int));
363 static const char *if_exists_spec_function
PARAMS ((int, const char **));
364 static const char *if_exists_else_spec_function
PARAMS ((int, const char **));
366 /* The Specs Language
368 Specs are strings containing lines, each of which (if not blank)
369 is made up of a program name, and arguments separated by spaces.
370 The program name must be exact and start from root, since no path
371 is searched and it is unreliable to depend on the current working directory.
372 Redirection of input or output is not supported; the subprograms must
373 accept filenames saying what files to read and write.
375 In addition, the specs can contain %-sequences to substitute variable text
376 or for conditional text. Here is a table of all defined %-sequences.
377 Note that spaces are not generated automatically around the results of
378 expanding these sequences; therefore, you can concatenate them together
379 or with constant text in a single argument.
381 %% substitute one % into the program name or argument.
382 %i substitute the name of the input file being processed.
383 %b substitute the basename of the input file being processed.
384 This is the substring up to (and not including) the last period
385 and not including the directory.
386 %B same as %b, but include the file suffix (text after the last period).
388 substitute a file name that has suffix SUFFIX and is chosen
389 once per compilation, and mark the argument a la %d. To reduce
390 exposure to denial-of-service attacks, the file name is now
391 chosen in a way that is hard to predict even when previously
392 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
393 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
394 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
395 had been pre-processed. Previously, %g was simply substituted
396 with a file name chosen once per compilation, without regard
397 to any appended suffix (which was therefore treated just like
398 ordinary text), making such attacks more likely to succeed.
400 like %g, but if -pipe is in effect, expands simply to "-".
402 like %g, but if -pipe is in effect, expands to nothing. (We have both
403 %| and %m to accommodate differences between system assemblers; see
404 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
406 like %g, but generates a new temporary file name even if %uSUFFIX
409 substitutes the last file name generated with %uSUFFIX, generating a
410 new one if there is no such last file name. In the absence of any
411 %uSUFFIX, this is just like %gSUFFIX, except they don't share
412 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
413 would involve the generation of two distinct file names, one
414 for each `%g.s' and another for each `%U.s'. Previously, %U was
415 simply substituted with a file name chosen for the previous %u,
416 without regard to any appended suffix.
418 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
419 writable, and if save-temps is off; otherwise, substitute the name
420 of a temporary file, just like %u. This temporary file is not
421 meant for communication between processes, but rather as a junk
424 substitutes .SUFFIX for the suffixes of a matched switch's args when
425 it is subsequently output with %*. SUFFIX is terminated by the next
427 %d marks the argument containing or following the %d as a
428 temporary file name, so that that file will be deleted if CC exits
429 successfully. Unlike %g, this contributes no text to the argument.
430 %w marks the argument containing or following the %w as the
431 "output file" of this compilation. This puts the argument
432 into the sequence of arguments that %o will substitute later.
433 %V indicates that this compilation produces no "output file".
435 like %{...} but mark last argument supplied within
436 as a file to be deleted on failure.
437 %o substitutes the names of all the output files, with spaces
438 automatically placed around them. You should write spaces
439 around the %o as well or the results are undefined.
440 %o is for use in the specs for running the linker.
441 Input files whose names have no recognized suffix are not compiled
442 at all, but they are included among the output files, so they will
444 %O substitutes the suffix for object files. Note that this is
445 handled specially when it immediately follows %g, %u, or %U
446 (with or without a suffix argument) because of the need for
447 those to form complete file names. The handling is such that
448 %O is treated exactly as if it had already been substituted,
449 except that %g, %u, and %U do not currently support additional
450 SUFFIX characters following %O as they would following, for
452 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
453 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
454 and -B options) as necessary.
455 %s current argument is the name of a library or startup file of some sort.
456 Search for that file in a standard list of directories
457 and substitute the full name found.
458 %eSTR Print STR as an error message. STR is terminated by a newline.
459 Use this when inconsistent options are detected.
460 %nSTR Print STR as a notice. STR is terminated by a newline.
461 %x{OPTION} Accumulate an option for %X.
462 %X Output the accumulated linker options specified by compilations.
463 %Y Output the accumulated assembler options specified by compilations.
464 %Z Output the accumulated preprocessor options specified by compilations.
465 %a process ASM_SPEC as a spec.
466 This allows config.h to specify part of the spec for running as.
467 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
468 used here. This can be used to run a post-processor after the
469 assembler has done its job.
470 %D Dump out a -L option for each directory in startfile_prefixes.
471 If multilib_dir is set, extra entries are generated with it affixed.
472 %l process LINK_SPEC as a spec.
473 %L process LIB_SPEC as a spec.
474 %G process LIBGCC_SPEC as a spec.
475 %M output multilib_dir with directory separators replaced with "_";
476 if multilib_dir is not set or is ".", output "".
477 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
478 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
479 %C process CPP_SPEC as a spec.
480 %1 process CC1_SPEC as a spec.
481 %2 process CC1PLUS_SPEC as a spec.
482 %* substitute the variable part of a matched option. (See below.)
483 Note that each comma in the substituted string is replaced by
485 %<S remove all occurrences of -S from the command line.
486 Note - this command is position dependent. % commands in the
487 spec string before this one will see -S, % commands in the
488 spec string after this one will not.
489 %<S* remove all occurrences of all switches beginning with -S from the
492 Call the named function FUNCTION, passing it ARGS. ARGS is
493 first processed as a nested spec string, then split into an
494 argument vector in the usual fashion. The function returns
495 a string which is processed as if it had appeared literally
496 as part of the current spec.
497 %{S} substitutes the -S switch, if that switch was given to CC.
498 If that switch was not specified, this substitutes nothing.
499 Here S is a metasyntactic variable.
500 %{S*} substitutes all the switches specified to CC whose names start
501 with -S. This is used for -o, -I, etc; switches that take
502 arguments. CC considers `-o foo' as being one switch whose
503 name starts with `o'. %{o*} would substitute this text,
504 including the space; thus, two arguments would be generated.
505 %{S*&T*} likewise, but preserve order of S and T options (the order
506 of S and T in the spec is not significant). Can be any number
507 of ampersand-separated variables; for each the wild card is
508 optional. Useful for CPP as %{D*&U*&A*}.
510 %{S:X} substitutes X, if the -S switch was given to CC.
511 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
512 %{S*:X} substitutes X if one or more switches whose names start
513 with -S was given to CC. Normally X is substituted only
514 once, no matter how many such switches appeared. However,
515 if %* appears somewhere in X, then X will be substituted
516 once for each matching switch, with the %* replaced by the
517 part of that switch that matched the '*'.
518 %{.S:X} substitutes X, if processing a file with suffix S.
519 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
521 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
522 combined with !, ., and * as above binding stronger than the OR.
523 If %* appears in X, all of the alternatives must be starred, and
524 only the first matching alternative is substituted.
525 %{S:X; if S was given to CC, substitutes X;
526 T:Y; else if T was given to CC, substitutes Y;
527 :D} else substitutes D. There can be as many clauses as you need.
528 This may be combined with ., !, |, and * as above.
530 %(Spec) processes a specification defined in a specs file as *Spec:
531 %[Spec] as above, but put __ around -D arguments
533 The conditional text X in a %{S:X} or similar construct may contain
534 other nested % constructs or spaces, or even newlines. They are
535 processed as usual, as described above. Trailing white space in X is
536 ignored. White space may also appear anywhere on the left side of the
537 colon in these constructs, except between . or * and the corresponding
540 The -O, -f, -m, and -W switches are handled specifically in these
541 constructs. If another value of -O or the negated form of a -f, -m, or
542 -W switch is found later in the command line, the earlier switch
543 value is ignored, except with {S*} where S is just one letter; this
544 passes all matching options.
546 The character | at the beginning of the predicate text is used to indicate
547 that a command should be piped to the following command, but only if -pipe
550 Note that it is built into CC which switches take arguments and which
551 do not. You might think it would be useful to generalize this to
552 allow each compiler's spec to say which switches take arguments. But
553 this cannot be done in a consistent fashion. CC cannot even decide
554 which input files have been specified without knowing which switches
555 take arguments, and it must know which input files to compile in order
556 to tell which compilers to run.
558 CC also knows implicitly that arguments starting in `-l' are to be
559 treated as compiler output files, and passed to the linker in their
560 proper position among the other output files. */
562 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
564 /* config.h can define ASM_SPEC to provide extra args to the assembler
565 or extra switch-translations. */
570 /* config.h can define ASM_FINAL_SPEC to run a post processor after
571 the assembler has run. */
572 #ifndef ASM_FINAL_SPEC
573 #define ASM_FINAL_SPEC ""
576 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
577 or extra switch-translations. */
582 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
583 or extra switch-translations. */
588 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
589 or extra switch-translations. */
591 #define CC1PLUS_SPEC ""
594 /* config.h can define LINK_SPEC to provide extra args to the linker
595 or extra switch-translations. */
600 /* config.h can define LIB_SPEC to override the default libraries. */
602 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
605 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
608 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
609 /* Have gcc do the search for libgcc.a. */
610 #define LIBGCC_SPEC "libgcc.a%s"
612 #define LIBGCC_SPEC "-lgcc"
616 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
617 #ifndef STARTFILE_SPEC
618 #define STARTFILE_SPEC \
619 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
622 /* config.h can define SWITCHES_NEED_SPACES to control which options
623 require spaces between the option and the argument. */
624 #ifndef SWITCHES_NEED_SPACES
625 #define SWITCHES_NEED_SPACES ""
628 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
630 #define ENDFILE_SPEC ""
634 #define LINKER_NAME "collect2"
637 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
639 #ifndef ASM_DEBUG_SPEC
640 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
641 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
642 # define ASM_DEBUG_SPEC \
643 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
644 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
645 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
647 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
648 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
650 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
651 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
655 #ifndef ASM_DEBUG_SPEC
656 # define ASM_DEBUG_SPEC ""
659 /* Here is the spec for running the linker, after compiling all files. */
661 /* This is overridable by the target in case they need to specify the
662 -lgcc and -lc order specially, yet not require them to override all
663 of LINK_COMMAND_SPEC. */
664 #ifndef LINK_GCC_C_SEQUENCE_SPEC
665 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
668 #ifndef LINK_PIE_SPEC
670 #define LINK_PIE_SPEC "%{pie:-pie} "
672 #define LINK_PIE_SPEC "%{pie:} "
676 /* -u* was put back because both BSD and SysV seem to support it. */
677 /* %{static:} simply prevents an error message if the target machine
678 doesn't handle -static. */
679 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
680 scripts which exist in user specified directories, or in standard
682 #ifndef LINK_COMMAND_SPEC
683 #define LINK_COMMAND_SPEC "\
684 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
685 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
686 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
687 %{static:} %{L*} %(link_libgcc) %o %{fprofile-arcs:-lgcov}\
688 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
689 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
692 #ifndef LINK_LIBGCC_SPEC
693 # ifdef LINK_LIBGCC_SPECIAL
694 /* Don't generate -L options for startfile prefix list. */
695 # define LINK_LIBGCC_SPEC ""
697 /* Do generate them. */
698 # define LINK_LIBGCC_SPEC "%D"
702 #ifndef STARTFILE_PREFIX_SPEC
703 # define STARTFILE_PREFIX_SPEC ""
706 #ifndef SYSROOT_SUFFIX_SPEC
707 # define SYSROOT_SUFFIX_SPEC ""
710 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
711 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
714 static const char *asm_debug
;
715 static const char *cpp_spec
= CPP_SPEC
;
716 static const char *cc1_spec
= CC1_SPEC
;
717 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
718 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
719 static const char *asm_spec
= ASM_SPEC
;
720 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
721 static const char *link_spec
= LINK_SPEC
;
722 static const char *lib_spec
= LIB_SPEC
;
723 static const char *libgcc_spec
= LIBGCC_SPEC
;
724 static const char *endfile_spec
= ENDFILE_SPEC
;
725 static const char *startfile_spec
= STARTFILE_SPEC
;
726 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
727 static const char *linker_name_spec
= LINKER_NAME
;
728 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
729 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
730 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
731 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
732 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
734 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
735 There should be no need to override these in target dependent files,
736 but we need to copy them to the specs file so that newer versions
737 of the GCC driver can correctly drive older tool chains with the
738 appropriate -B options. */
740 /* When cpplib handles traditional preprocessing, get rid of this, and
741 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
742 that we default the front end language better. */
743 static const char *trad_capable_cpp
=
744 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
746 /* We don't wrap .d files in %W{} since a missing .d file, and
747 therefore no dependency entry, confuses make into thinking a .o
748 file that happens to exist is up-to-date. */
749 static const char *cpp_unique_options
=
750 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
751 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %I\
752 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
753 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
754 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
755 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
756 %{trigraphs} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
759 /* This contains cpp options which are common with cc1_options and are passed
760 only when preprocessing only to avoid duplication. We pass the cc1 spec
761 options to the preprocessor so that it the cc1 spec may manipulate
762 options used to set target flags. Those special target flags settings may
763 in turn cause preprocessor symbols to be defined specially. */
764 static const char *cpp_options
=
765 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
768 /* This contains cpp options which are not passed when the preprocessor
769 output will be used by another program. */
770 static const char *cpp_debug_options
= "%{d*}";
772 /* NB: This is shared amongst all front-ends. */
773 static const char *cc1_options
=
774 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
775 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
776 -auxbase%{c|S:%{o*:-strip %*}%{!o*: %b}}%{!c:%{!S: %b}}\
777 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
778 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
779 %{Qn:-fno-ident} %{--help:--help}\
780 %{--target-help:--target-help}\
781 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
782 %{fsyntax-only:-o %j} %{-param*}";
784 static const char *asm_options
=
785 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
787 static const char *invoke_as
=
788 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
789 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
791 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
794 /* Some compilers have limits on line lengths, and the multilib_select
795 and/or multilib_matches strings can be very long, so we build them at
797 static struct obstack multilib_obstack
;
798 static const char *multilib_select
;
799 static const char *multilib_matches
;
800 static const char *multilib_defaults
;
801 static const char *multilib_exclusions
;
802 #include "multilib.h"
804 /* Check whether a particular argument is a default argument. */
806 #ifndef MULTILIB_DEFAULTS
807 #define MULTILIB_DEFAULTS { "" }
810 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
812 #ifndef DRIVER_SELF_SPECS
813 #define DRIVER_SELF_SPECS ""
816 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
818 #ifndef OPTION_DEFAULT_SPECS
819 #define OPTION_DEFAULT_SPECS { "", "" }
828 static const struct default_spec
829 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
833 struct user_specs
*next
;
834 const char *filename
;
837 static struct user_specs
*user_specs_head
, *user_specs_tail
;
839 #ifndef SWITCH_TAKES_ARG
840 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
843 #ifndef WORD_SWITCH_TAKES_ARG
844 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
847 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
848 /* This defines which switches stop a full compilation. */
849 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
850 ((CHAR) == 'c' || (CHAR) == 'S')
852 #ifndef SWITCH_CURTAILS_COMPILATION
853 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
854 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
858 /* Record the mapping from file suffixes for compilation specs. */
862 const char *suffix
; /* Use this compiler for input files
863 whose names end in this suffix. */
865 const char *spec
; /* To use this compiler, run this spec. */
867 const char *cpp_spec
; /* If non-NULL, substitute this spec
868 for `%C', rather than the usual
872 /* Pointer to a vector of `struct compiler' that gives the spec for
873 compiling a file, based on its suffix.
874 A file that does not end in any of these suffixes will be passed
875 unchanged to the loader and nothing else will be done to it.
877 An entry containing two 0s is used to terminate the vector.
879 If multiple entries match a file, the last matching one is used. */
881 static struct compiler
*compilers
;
883 /* Number of entries in `compilers', not counting the null terminator. */
885 static int n_compilers
;
887 /* The default list of file name suffixes and their compilation specs. */
889 static const struct compiler default_compilers
[] =
891 /* Add lists of suffixes of known languages here. If those languages
892 were not present when we built the driver, we will hit these copies
893 and be given a more meaningful error than "file not used since
894 linking is not done". */
895 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
896 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
897 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
898 {".CPP", "#C++", 0}, {".ii", "#C++", 0},
899 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
900 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
901 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
902 {".r", "#Ratfor", 0},
903 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
904 {".java", "#Java", 0}, {".class", "#Java", 0},
905 {".zip", "#Java", 0}, {".jar", "#Java", 0},
906 /* Next come the entries for C. */
909 /* cc1 has an integrated ISO C preprocessor. We should invoke the
910 external preprocessor if -save-temps is given. */
911 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
913 %{traditional|ftraditional:\
914 %eGNU C no longer supports -traditional without -E}\
915 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
916 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
917 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
919 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
920 cc1 %(cpp_unique_options) %(cc1_options)}}}\
921 %{!fsyntax-only:%(invoke_as)}}}}", 0},
923 "%{!E:%e-E required when input is from standard input}\
924 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0},
925 {".h", "@c-header", 0},
927 /* cc1 has an integrated ISO C preprocessor. We should invoke the
928 external preprocessor if -save-temps is given. */
929 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
931 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
932 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
933 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
935 -o %g.s %{!o*:--output-pch=%i.gch}\
936 %W{o*:--output-pch=%*}%V}\
937 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
938 cc1 %(cpp_unique_options) %(cc1_options)\
939 -o %g.s %{!o*:--output-pch=%i.gch}\
940 %W{o*:--output-pch=%*}%V}}}}}}", 0},
941 {".i", "@cpp-output", 0},
943 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
944 {".s", "@assembler", 0},
946 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
947 {".S", "@assembler-with-cpp", 0},
948 {"@assembler-with-cpp",
949 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
950 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
951 %{E|M|MM:%(cpp_debug_options)}\
952 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
953 as %(asm_debug) %(asm_options) %|.s %A }}}}"
955 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
956 %{E|M|MM:%(cpp_debug_options)}\
957 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
958 as %(asm_debug) %(asm_options) %m.s %A }}}}"
963 /* Mark end of table. */
967 /* Number of elements in default_compilers, not counting the terminator. */
969 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
971 /* A vector of options to give to the linker.
972 These options are accumulated by %x,
973 and substituted into the linker command with %X. */
974 static int n_linker_options
;
975 static char **linker_options
;
977 /* A vector of options to give to the assembler.
978 These options are accumulated by -Wa,
979 and substituted into the assembler command with %Y. */
980 static int n_assembler_options
;
981 static char **assembler_options
;
983 /* A vector of options to give to the preprocessor.
984 These options are accumulated by -Wp,
985 and substituted into the preprocessor command with %Z. */
986 static int n_preprocessor_options
;
987 static char **preprocessor_options
;
989 /* Define how to map long options into short ones. */
991 /* This structure describes one mapping. */
994 /* The long option's name. */
995 const char *const name
;
996 /* The equivalent short option. */
997 const char *const equivalent
;
998 /* Argument info. A string of flag chars; NULL equals no options.
999 a => argument required.
1000 o => argument optional.
1001 j => join argument to equivalent, making one word.
1002 * => require other text after NAME as an argument. */
1003 const char *const arg_info
;
1006 /* This is the table of mappings. Mappings are tried sequentially
1007 for each option encountered; the first one that matches, wins. */
1009 static const struct option_map option_map
[] =
1011 {"--all-warnings", "-Wall", 0},
1012 {"--ansi", "-ansi", 0},
1013 {"--assemble", "-S", 0},
1014 {"--assert", "-A", "a"},
1015 {"--classpath", "-fclasspath=", "aj"},
1016 {"--bootclasspath", "-fbootclasspath=", "aj"},
1017 {"--CLASSPATH", "-fclasspath=", "aj"},
1018 {"--comments", "-C", 0},
1019 {"--comments-in-macros", "-CC", 0},
1020 {"--compile", "-c", 0},
1021 {"--debug", "-g", "oj"},
1022 {"--define-macro", "-D", "aj"},
1023 {"--dependencies", "-M", 0},
1024 {"--dump", "-d", "a"},
1025 {"--dumpbase", "-dumpbase", "a"},
1026 {"--entry", "-e", 0},
1027 {"--extra-warnings", "-W", 0},
1028 {"--for-assembler", "-Wa", "a"},
1029 {"--for-linker", "-Xlinker", "a"},
1030 {"--force-link", "-u", "a"},
1031 {"--imacros", "-imacros", "a"},
1032 {"--include", "-include", "a"},
1033 {"--include-barrier", "-I-", 0},
1034 {"--include-directory", "-I", "aj"},
1035 {"--include-directory-after", "-idirafter", "a"},
1036 {"--include-prefix", "-iprefix", "a"},
1037 {"--include-with-prefix", "-iwithprefix", "a"},
1038 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1039 {"--include-with-prefix-after", "-iwithprefix", "a"},
1040 {"--language", "-x", "a"},
1041 {"--library-directory", "-L", "a"},
1042 {"--machine", "-m", "aj"},
1043 {"--machine-", "-m", "*j"},
1044 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1045 {"--no-line-commands", "-P", 0},
1046 {"--no-precompiled-includes", "-noprecomp", 0},
1047 {"--no-standard-includes", "-nostdinc", 0},
1048 {"--no-standard-libraries", "-nostdlib", 0},
1049 {"--no-warnings", "-w", 0},
1050 {"--optimize", "-O", "oj"},
1051 {"--output", "-o", "a"},
1052 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1053 {"--param", "--param", "a"},
1054 {"--pedantic", "-pedantic", 0},
1055 {"--pedantic-errors", "-pedantic-errors", 0},
1056 {"--pie", "-pie", 0},
1057 {"--pipe", "-pipe", 0},
1058 {"--prefix", "-B", "a"},
1059 {"--preprocess", "-E", 0},
1060 {"--print-search-dirs", "-print-search-dirs", 0},
1061 {"--print-file-name", "-print-file-name=", "aj"},
1062 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1063 {"--print-missing-file-dependencies", "-MG", 0},
1064 {"--print-multi-lib", "-print-multi-lib", 0},
1065 {"--print-multi-directory", "-print-multi-directory", 0},
1066 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1067 {"--print-prog-name", "-print-prog-name=", "aj"},
1068 {"--profile", "-p", 0},
1069 {"--profile-blocks", "-a", 0},
1070 {"--quiet", "-q", 0},
1071 {"--resource", "-fcompile-resource=", "aj"},
1072 {"--save-temps", "-save-temps", 0},
1073 {"--shared", "-shared", 0},
1074 {"--silent", "-q", 0},
1075 {"--specs", "-specs=", "aj"},
1076 {"--static", "-static", 0},
1077 {"--std", "-std=", "aj"},
1078 {"--symbolic", "-symbolic", 0},
1079 {"--target", "-b", "a"},
1080 {"--time", "-time", 0},
1081 {"--trace-includes", "-H", 0},
1082 {"--traditional", "-traditional", 0},
1083 {"--traditional-cpp", "-traditional-cpp", 0},
1084 {"--trigraphs", "-trigraphs", 0},
1085 {"--undefine-macro", "-U", "aj"},
1086 {"--use-version", "-V", "a"},
1087 {"--user-dependencies", "-MM", 0},
1088 {"--verbose", "-v", 0},
1089 {"--warn-", "-W", "*j"},
1090 {"--write-dependencies", "-MD", 0},
1091 {"--write-user-dependencies", "-MMD", 0},
1096 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1097 static const struct {
1098 const char *const option_found
;
1099 const char *const replacements
;
1100 } target_option_translations
[] =
1102 TARGET_OPTION_TRANSLATE_TABLE
,
1107 /* Translate the options described by *ARGCP and *ARGVP.
1108 Make a new vector and store it back in *ARGVP,
1109 and store its length in *ARGVC. */
1112 translate_options (argcp
, argvp
)
1114 const char *const **argvp
;
1118 const char *const *argv
= *argvp
;
1119 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1121 (const char **) xmalloc (newvsize
);
1125 newv
[newindex
++] = argv
[i
++];
1129 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1133 target_option_translations
[tott_idx
].option_found
;
1136 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1143 for (sp
= target_option_translations
[tott_idx
].replacements
;
1150 newvsize
+= spaces
* sizeof (const char *);
1151 newv
= (const char **) xrealloc (newv
, newvsize
);
1153 sp
= target_option_translations
[tott_idx
].replacements
;
1162 newv
[newindex
++] = np
;
1163 while (*np
!= ' ' && *np
)
1174 if (target_option_translations
[tott_idx
].option_found
)
1178 /* Translate -- options. */
1179 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1182 /* Find a mapping that applies to this option. */
1183 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1185 size_t optlen
= strlen (option_map
[j
].name
);
1186 size_t arglen
= strlen (argv
[i
]);
1187 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1188 const char *arginfo
= option_map
[j
].arg_info
;
1193 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1195 const char *arg
= 0;
1197 if (arglen
< optlen
)
1200 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1201 if (strlen (option_map
[k
].name
) >= arglen
1202 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1204 error ("ambiguous abbreviation %s", argv
[i
]);
1208 if (k
!= ARRAY_SIZE (option_map
))
1212 if (arglen
> optlen
)
1214 /* If the option has an argument, accept that. */
1215 if (argv
[i
][optlen
] == '=')
1216 arg
= argv
[i
] + optlen
+ 1;
1218 /* If this mapping requires extra text at end of name,
1219 accept that as "argument". */
1220 else if (strchr (arginfo
, '*') != 0)
1221 arg
= argv
[i
] + optlen
;
1223 /* Otherwise, extra text at end means mismatch.
1224 Try other mappings. */
1229 else if (strchr (arginfo
, '*') != 0)
1231 error ("incomplete `%s' option", option_map
[j
].name
);
1235 /* Handle arguments. */
1236 if (strchr (arginfo
, 'a') != 0)
1242 error ("missing argument to `%s' option",
1243 option_map
[j
].name
);
1250 else if (strchr (arginfo
, '*') != 0)
1252 else if (strchr (arginfo
, 'o') == 0)
1255 error ("extraneous argument to `%s' option",
1256 option_map
[j
].name
);
1260 /* Store the translation as one argv elt or as two. */
1261 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1262 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1266 newv
[newindex
++] = option_map
[j
].equivalent
;
1267 newv
[newindex
++] = arg
;
1270 newv
[newindex
++] = option_map
[j
].equivalent
;
1278 /* Handle old-fashioned options--just copy them through,
1279 with their arguments. */
1280 else if (argv
[i
][0] == '-')
1282 const char *p
= argv
[i
] + 1;
1286 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1287 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1288 else if (WORD_SWITCH_TAKES_ARG (p
))
1289 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1290 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1293 else if (! strcmp (p
, "Xlinker"))
1295 else if (! strcmp (p
, "Xpreprocessor"))
1297 else if (! strcmp (p
, "Xassembler"))
1300 /* Watch out for an option at the end of the command line that
1301 is missing arguments, and avoid skipping past the end of the
1303 if (nskip
+ i
> argc
)
1308 newv
[newindex
++] = argv
[i
++];
1313 /* Ordinary operands, or +e options. */
1314 newv
[newindex
++] = argv
[i
++];
1329 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1330 be considered whitespace. */
1331 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1333 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1347 /* Structures to keep track of prefixes to try when looking for files. */
1351 const char *prefix
; /* String to prepend to the path. */
1352 struct prefix_list
*next
; /* Next in linked list. */
1353 int require_machine_suffix
; /* Don't use without machine_suffix. */
1354 /* 2 means try both machine_suffix and just_machine_suffix. */
1355 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1356 int priority
; /* Sort key - priority within list. */
1357 int os_multilib
; /* 1 if OS multilib scheme should be used,
1358 0 for GCC multilib scheme. */
1363 struct prefix_list
*plist
; /* List of prefixes to try */
1364 int max_len
; /* Max length of a prefix in PLIST */
1365 const char *name
; /* Name of this list (used in config stuff) */
1368 /* List of prefixes to try when looking for executables. */
1370 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1372 /* List of prefixes to try when looking for startup (crt0) files. */
1374 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1376 /* List of prefixes to try when looking for include files. */
1378 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1380 /* Suffix to attach to directories searched for commands.
1381 This looks like `MACHINE/VERSION/'. */
1383 static const char *machine_suffix
= 0;
1385 /* Suffix to attach to directories searched for commands.
1386 This is just `MACHINE/'. */
1388 static const char *just_machine_suffix
= 0;
1390 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1392 static const char *gcc_exec_prefix
;
1394 /* Default prefixes to attach to command names. */
1396 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1397 #undef MD_EXEC_PREFIX
1398 #undef MD_STARTFILE_PREFIX
1399 #undef MD_STARTFILE_PREFIX_1
1402 /* If no prefixes defined, use the null string, which will disable them. */
1403 #ifndef MD_EXEC_PREFIX
1404 #define MD_EXEC_PREFIX ""
1406 #ifndef MD_STARTFILE_PREFIX
1407 #define MD_STARTFILE_PREFIX ""
1409 #ifndef MD_STARTFILE_PREFIX_1
1410 #define MD_STARTFILE_PREFIX_1 ""
1413 /* Supply defaults for the standard prefixes. */
1415 #ifndef STANDARD_EXEC_PREFIX
1416 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1418 #ifndef STANDARD_STARTFILE_PREFIX
1419 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1421 #ifndef TOOLDIR_BASE_PREFIX
1422 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1424 #ifndef STANDARD_BINDIR_PREFIX
1425 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1428 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1429 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1430 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1432 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1433 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1434 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1435 static const char *const standard_startfile_prefix_1
= "/lib/";
1436 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1438 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1439 static const char *tooldir_prefix
;
1441 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1443 /* Subdirectory to use for locating libraries. Set by
1444 set_multilib_dir based on the compilation options. */
1446 static const char *multilib_dir
;
1448 /* Subdirectory to use for locating libraries in OS conventions. Set by
1449 set_multilib_dir based on the compilation options. */
1451 static const char *multilib_os_dir
;
1453 /* Structure to keep track of the specs that have been defined so far.
1454 These are accessed using %(specname) or %[specname] in a compiler
1459 /* The following 2 fields must be first */
1460 /* to allow EXTRA_SPECS to be initialized */
1461 const char *name
; /* name of the spec. */
1462 const char *ptr
; /* available ptr if no static pointer */
1464 /* The following fields are not initialized */
1465 /* by EXTRA_SPECS */
1466 const char **ptr_spec
; /* pointer to the spec itself. */
1467 struct spec_list
*next
; /* Next spec in linked list. */
1468 int name_len
; /* length of the name */
1469 int alloc_p
; /* whether string was allocated */
1472 #define INIT_STATIC_SPEC(NAME,PTR) \
1473 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1475 /* List of statically defined specs. */
1476 static struct spec_list static_specs
[] =
1478 INIT_STATIC_SPEC ("asm", &asm_spec
),
1479 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1480 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1481 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1482 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1483 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1484 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1485 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1486 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1487 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1488 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1489 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1490 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1491 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1492 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1493 INIT_STATIC_SPEC ("link", &link_spec
),
1494 INIT_STATIC_SPEC ("lib", &lib_spec
),
1495 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1496 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1497 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1498 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1499 INIT_STATIC_SPEC ("version", &compiler_version
),
1500 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1501 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1502 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1503 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1504 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1505 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1506 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1507 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1508 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1509 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1510 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1511 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1512 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1513 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1516 #ifdef EXTRA_SPECS /* additional specs needed */
1517 /* Structure to keep track of just the first two args of a spec_list.
1518 That is all that the EXTRA_SPECS macro gives us. */
1521 const char *const name
;
1522 const char *const ptr
;
1525 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1526 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1529 /* List of dynamically allocates specs that have been defined so far. */
1531 static struct spec_list
*specs
= (struct spec_list
*) 0;
1533 /* List of static spec functions. */
1535 static const struct spec_function static_spec_functions
[] =
1537 { "if-exists", if_exists_spec_function
},
1538 { "if-exists-else", if_exists_else_spec_function
},
1542 static int processing_spec_function
;
1544 /* Add appropriate libgcc specs to OBSTACK, taking into account
1545 various permutations of -shared-libgcc, -shared, and such. */
1547 #ifdef ENABLE_SHARED_LIBGCC
1549 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1550 struct obstack
*obstack
;
1551 const char *shared_name
;
1552 const char *static_name
;
1553 const char *eh_name
;
1557 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1558 "}%{!static:%{!static-libgcc:",
1559 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1560 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1561 static_name
, "}}%{shared:",
1563 "%{shared-libgcc:", shared_name
,
1564 "}%{!shared-libgcc:", static_name
, "}",
1570 obstack_grow (obstack
, buf
, strlen (buf
));
1573 #endif /* ENABLE_SHARED_LIBGCC */
1575 /* Initialize the specs lookup routines. */
1580 struct spec_list
*next
= (struct spec_list
*) 0;
1581 struct spec_list
*sl
= (struct spec_list
*) 0;
1585 return; /* Already initialized. */
1588 notice ("Using built-in specs.\n");
1591 extra_specs
= (struct spec_list
*)
1592 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1594 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1596 sl
= &extra_specs
[i
];
1597 sl
->name
= extra_specs_1
[i
].name
;
1598 sl
->ptr
= extra_specs_1
[i
].ptr
;
1600 sl
->name_len
= strlen (sl
->name
);
1601 sl
->ptr_spec
= &sl
->ptr
;
1606 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1607 on ?: in file-scope variable initializations. */
1608 asm_debug
= ASM_DEBUG_SPEC
;
1610 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1612 sl
= &static_specs
[i
];
1617 #ifdef ENABLE_SHARED_LIBGCC
1618 /* ??? If neither -shared-libgcc nor --static-libgcc was
1619 seen, then we should be making an educated guess. Some proposed
1620 heuristics for ELF include:
1622 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1623 program will be doing dynamic loading, which will likely
1624 need the shared libgcc.
1626 (2) If "-ldl", then it's also a fair bet that we're doing
1629 (3) For each ET_DYN we're linking against (either through -lfoo
1630 or /some/path/foo.so), check to see whether it or one of
1631 its dependencies depends on a shared libgcc.
1635 If the runtime is fixed to look for program headers instead
1636 of calling __register_frame_info at all, for each object,
1637 use the shared libgcc if any EH symbol referenced.
1639 If crtstuff is fixed to not invoke __register_frame_info
1640 automatically, for each object, use the shared libgcc if
1641 any non-empty unwind section found.
1643 Doing any of this probably requires invoking an external program to
1644 do the actual object file scanning. */
1646 const char *p
= libgcc_spec
;
1649 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1650 when given the proper command line arguments. */
1653 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1655 init_gcc_specs (&obstack
,
1656 #ifdef NO_SHARED_LIBGCC_MULTILIB
1661 #ifdef USE_LIBUNWIND_EXCEPTIONS
1670 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1672 /* Ug. We don't know shared library extensions. Hope that
1673 systems that use this form don't do shared libraries. */
1674 init_gcc_specs (&obstack
,
1675 #ifdef NO_SHARED_LIBGCC_MULTILIB
1688 obstack_1grow (&obstack
, *p
);
1689 in_sep
= (*p
== ' ');
1694 obstack_1grow (&obstack
, '\0');
1695 libgcc_spec
= obstack_finish (&obstack
);
1698 #ifdef USE_AS_TRADITIONAL_FORMAT
1699 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1701 static const char tf
[] = "--traditional-format ";
1702 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1703 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1704 asm_spec
= obstack_finish (&obstack
);
1708 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1709 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1710 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1711 link_spec
= obstack_finish (&obstack
);
1717 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1718 removed; If the spec starts with a + then SPEC is added to the end of the
1722 set_spec (name
, spec
)
1726 struct spec_list
*sl
;
1727 const char *old_spec
;
1728 int name_len
= strlen (name
);
1731 /* If this is the first call, initialize the statically allocated specs. */
1734 struct spec_list
*next
= (struct spec_list
*) 0;
1735 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1737 sl
= &static_specs
[i
];
1744 /* See if the spec already exists. */
1745 for (sl
= specs
; sl
; sl
= sl
->next
)
1746 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1751 /* Not found - make it. */
1752 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1753 sl
->name
= xstrdup (name
);
1754 sl
->name_len
= name_len
;
1755 sl
->ptr_spec
= &sl
->ptr
;
1757 *(sl
->ptr_spec
) = "";
1762 old_spec
= *(sl
->ptr_spec
);
1763 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1764 ? concat (old_spec
, spec
+ 1, NULL
)
1769 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1772 /* Free the old spec. */
1773 if (old_spec
&& sl
->alloc_p
)
1774 free ((void *) old_spec
);
1779 /* Accumulate a command (program name and args), and run it. */
1781 /* Vector of pointers to arguments in the current line of specifications. */
1783 static const char **argbuf
;
1785 /* Number of elements allocated in argbuf. */
1787 static int argbuf_length
;
1789 /* Number of elements in argbuf currently in use (containing args). */
1791 static int argbuf_index
;
1793 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1794 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1797 static struct temp_name
{
1798 const char *suffix
; /* suffix associated with the code. */
1799 int length
; /* strlen (suffix). */
1800 int unique
; /* Indicates whether %g or %u/%U was used. */
1801 const char *filename
; /* associated filename. */
1802 int filename_length
; /* strlen (filename). */
1803 struct temp_name
*next
;
1806 /* Number of commands executed so far. */
1808 static int execution_count
;
1810 /* Number of commands that exited with a signal. */
1812 static int signal_count
;
1814 /* Name with which this program was invoked. */
1816 static const char *programname
;
1818 /* Allocate the argument vector. */
1824 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
1827 /* Clear out the vector of arguments (after a command is executed). */
1835 /* Add one argument to the vector at the end.
1836 This is done when a space is seen or at the end of the line.
1837 If DELETE_ALWAYS is nonzero, the arg is a filename
1838 and the file should be deleted eventually.
1839 If DELETE_FAILURE is nonzero, the arg is a filename
1840 and the file should be deleted if this compilation fails. */
1843 store_arg (arg
, delete_always
, delete_failure
)
1845 int delete_always
, delete_failure
;
1847 if (argbuf_index
+ 1 == argbuf_length
)
1849 = (const char **) xrealloc (argbuf
,
1850 (argbuf_length
*= 2) * sizeof (const char *));
1852 argbuf
[argbuf_index
++] = arg
;
1853 argbuf
[argbuf_index
] = 0;
1855 if (delete_always
|| delete_failure
)
1856 record_temp_file (arg
, delete_always
, delete_failure
);
1859 /* Load specs from a file name named FILENAME, replacing occurrences of
1860 various different types of line-endings, \r\n, \n\r and just \r, with
1864 load_specs (filename
)
1865 const char *filename
;
1869 struct stat statbuf
;
1876 notice ("Reading specs from %s\n", filename
);
1878 /* Open and stat the file. */
1879 desc
= open (filename
, O_RDONLY
, 0);
1881 pfatal_with_name (filename
);
1882 if (stat (filename
, &statbuf
) < 0)
1883 pfatal_with_name (filename
);
1885 /* Read contents of file into BUFFER. */
1886 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1887 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1889 pfatal_with_name (filename
);
1890 buffer
[readlen
] = 0;
1893 specs
= xmalloc (readlen
+ 1);
1895 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1901 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1903 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1917 /* Read compilation specs from a file named FILENAME,
1918 replacing the default ones.
1920 A suffix which starts with `*' is a definition for
1921 one of the machine-specific sub-specs. The "suffix" should be
1922 *asm, *cc1, *cpp, *link, *startfile, etc.
1923 The corresponding spec is stored in asm_spec, etc.,
1924 rather than in the `compilers' vector.
1926 Anything invalid in the file is a fatal error. */
1929 read_specs (filename
, main_p
)
1930 const char *filename
;
1936 buffer
= load_specs (filename
);
1938 /* Scan BUFFER for specs, putting them in the vector. */
1944 char *in
, *out
, *p1
, *p2
, *p3
;
1946 /* Advance P in BUFFER to the next nonblank nocomment line. */
1947 p
= skip_whitespace (p
);
1951 /* Is this a special command that starts with '%'? */
1952 /* Don't allow this for the main specs file, since it would
1953 encourage people to overwrite it. */
1954 if (*p
== '%' && !main_p
)
1957 while (*p
&& *p
!= '\n')
1963 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1964 && (p1
[sizeof "%include" - 1] == ' '
1965 || p1
[sizeof "%include" - 1] == '\t'))
1969 p1
+= sizeof ("%include");
1970 while (*p1
== ' ' || *p1
== '\t')
1973 if (*p1
++ != '<' || p
[-2] != '>')
1974 fatal ("specs %%include syntax malformed after %ld characters",
1975 (long) (p1
- buffer
+ 1));
1978 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1979 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1982 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1983 && (p1
[sizeof "%include_noerr" - 1] == ' '
1984 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1988 p1
+= sizeof "%include_noerr";
1989 while (*p1
== ' ' || *p1
== '\t')
1992 if (*p1
++ != '<' || p
[-2] != '>')
1993 fatal ("specs %%include syntax malformed after %ld characters",
1994 (long) (p1
- buffer
+ 1));
1997 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1999 read_specs (new_filename
, FALSE
);
2000 else if (verbose_flag
)
2001 notice ("could not find specs file %s\n", p1
);
2004 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2005 && (p1
[sizeof "%rename" - 1] == ' '
2006 || p1
[sizeof "%rename" - 1] == '\t'))
2009 struct spec_list
*sl
;
2010 struct spec_list
*newsl
;
2012 /* Get original name. */
2013 p1
+= sizeof "%rename";
2014 while (*p1
== ' ' || *p1
== '\t')
2017 if (! ISALPHA ((unsigned char) *p1
))
2018 fatal ("specs %%rename syntax malformed after %ld characters",
2019 (long) (p1
- buffer
));
2022 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2025 if (*p2
!= ' ' && *p2
!= '\t')
2026 fatal ("specs %%rename syntax malformed after %ld characters",
2027 (long) (p2
- buffer
));
2031 while (*p2
== ' ' || *p2
== '\t')
2034 if (! ISALPHA ((unsigned char) *p2
))
2035 fatal ("specs %%rename syntax malformed after %ld characters",
2036 (long) (p2
- buffer
));
2038 /* Get new spec name. */
2040 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2044 fatal ("specs %%rename syntax malformed after %ld characters",
2045 (long) (p3
- buffer
));
2048 for (sl
= specs
; sl
; sl
= sl
->next
)
2049 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2053 fatal ("specs %s spec was not found to be renamed", p1
);
2055 if (strcmp (p1
, p2
) == 0)
2058 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2059 if (strcmp (newsl
->name
, p2
) == 0)
2060 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2065 notice ("rename spec %s to %s\n", p1
, p2
);
2067 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2071 set_spec (p2
, *(sl
->ptr_spec
));
2073 free ((void *) *(sl
->ptr_spec
));
2075 *(sl
->ptr_spec
) = "";
2080 fatal ("specs unknown %% command after %ld characters",
2081 (long) (p1
- buffer
));
2084 /* Find the colon that should end the suffix. */
2086 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2089 /* The colon shouldn't be missing. */
2091 fatal ("specs file malformed after %ld characters",
2092 (long) (p1
- buffer
));
2094 /* Skip back over trailing whitespace. */
2096 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2099 /* Copy the suffix to a string. */
2100 suffix
= save_string (p
, p2
- p
);
2101 /* Find the next line. */
2102 p
= skip_whitespace (p1
+ 1);
2104 fatal ("specs file malformed after %ld characters",
2105 (long) (p
- buffer
));
2108 /* Find next blank line or end of string. */
2109 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2112 /* Specs end at the blank line and do not include the newline. */
2113 spec
= save_string (p
, p1
- p
);
2116 /* Delete backslash-newline sequences from the spec. */
2121 if (in
[0] == '\\' && in
[1] == '\n')
2123 else if (in
[0] == '#')
2124 while (*in
&& *in
!= '\n')
2132 if (suffix
[0] == '*')
2134 if (! strcmp (suffix
, "*link_command"))
2135 link_command_spec
= spec
;
2137 set_spec (suffix
+ 1, spec
);
2141 /* Add this pair to the vector. */
2143 = ((struct compiler
*)
2144 xrealloc (compilers
,
2145 (n_compilers
+ 2) * sizeof (struct compiler
)));
2147 compilers
[n_compilers
].suffix
= suffix
;
2148 compilers
[n_compilers
].spec
= spec
;
2150 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2154 link_command_spec
= spec
;
2157 if (link_command_spec
== 0)
2158 fatal ("spec file has no spec for linking");
2161 /* Record the names of temporary files we tell compilers to write,
2162 and delete them at the end of the run. */
2164 /* This is the common prefix we use to make temp file names.
2165 It is chosen once for each run of this program.
2166 It is substituted into a spec by %g or %j.
2167 Thus, all temp file names contain this prefix.
2168 In practice, all temp file names start with this prefix.
2170 This prefix comes from the envvar TMPDIR if it is defined;
2171 otherwise, from the P_tmpdir macro if that is defined;
2172 otherwise, in /usr/tmp or /tmp;
2173 or finally the current directory if all else fails. */
2175 static const char *temp_filename
;
2177 /* Length of the prefix. */
2179 static int temp_filename_length
;
2181 /* Define the list of temporary files to delete. */
2186 struct temp_file
*next
;
2189 /* Queue of files to delete on success or failure of compilation. */
2190 static struct temp_file
*always_delete_queue
;
2191 /* Queue of files to delete on failure of compilation. */
2192 static struct temp_file
*failure_delete_queue
;
2194 /* Record FILENAME as a file to be deleted automatically.
2195 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2196 otherwise delete it in any case.
2197 FAIL_DELETE nonzero means delete it if a compilation step fails;
2198 otherwise delete it in any case. */
2201 record_temp_file (filename
, always_delete
, fail_delete
)
2202 const char *filename
;
2206 char *const name
= xstrdup (filename
);
2210 struct temp_file
*temp
;
2211 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2212 if (! strcmp (name
, temp
->name
))
2215 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2216 temp
->next
= always_delete_queue
;
2218 always_delete_queue
= temp
;
2225 struct temp_file
*temp
;
2226 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2227 if (! strcmp (name
, temp
->name
))
2230 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2231 temp
->next
= failure_delete_queue
;
2233 failure_delete_queue
= temp
;
2239 /* Delete all the temporary files whose names we previously recorded. */
2242 delete_if_ordinary (name
)
2249 printf ("Delete %s? (y or n) ", name
);
2253 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2256 if (i
== 'y' || i
== 'Y')
2258 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2259 if (unlink (name
) < 0)
2261 perror_with_name (name
);
2265 delete_temp_files ()
2267 struct temp_file
*temp
;
2269 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2270 delete_if_ordinary (temp
->name
);
2271 always_delete_queue
= 0;
2274 /* Delete all the files to be deleted on error. */
2277 delete_failure_queue ()
2279 struct temp_file
*temp
;
2281 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2282 delete_if_ordinary (temp
->name
);
2286 clear_failure_queue ()
2288 failure_delete_queue
= 0;
2291 /* Build a list of search directories from PATHS.
2292 PREFIX is a string to prepend to the list.
2293 If CHECK_DIR_P is nonzero we ensure the directory exists.
2294 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2295 It is also used by the --print-search-dirs flag. */
2298 build_search_list (paths
, prefix
, check_dir_p
)
2299 struct path_prefix
*paths
;
2303 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2305 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2306 int first_time
= TRUE
;
2307 struct prefix_list
*pprefix
;
2309 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2310 obstack_1grow (&collect_obstack
, '=');
2312 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2314 int len
= strlen (pprefix
->prefix
);
2318 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2321 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2324 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2325 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2328 if (just_machine_suffix
2329 && pprefix
->require_machine_suffix
== 2
2331 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2334 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2337 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2338 obstack_grow (&collect_obstack
, just_machine_suffix
,
2342 if (! pprefix
->require_machine_suffix
)
2345 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2348 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2352 obstack_1grow (&collect_obstack
, '\0');
2353 return obstack_finish (&collect_obstack
);
2356 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2360 putenv_from_prefixes (paths
, env_var
)
2361 struct path_prefix
*paths
;
2362 const char *env_var
;
2364 putenv (build_search_list (paths
, env_var
, 1));
2367 /* Check whether NAME can be accessed in MODE. This is like access,
2368 except that it never considers directories to be executable. */
2371 access_check (name
, mode
)
2379 if (stat (name
, &st
) < 0
2380 || S_ISDIR (st
.st_mode
))
2384 return access (name
, mode
);
2387 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2388 access to check permissions.
2389 Return 0 if not found, otherwise return its name, allocated with malloc. */
2392 find_a_file (pprefix
, name
, mode
, multilib
)
2393 struct path_prefix
*pprefix
;
2398 const char *const file_suffix
=
2399 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2400 struct prefix_list
*pl
;
2401 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2402 const char *multilib_name
, *multilib_os_name
;
2404 #ifdef DEFAULT_ASSEMBLER
2405 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2406 return xstrdup (DEFAULT_ASSEMBLER
);
2409 #ifdef DEFAULT_LINKER
2410 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2411 return xstrdup (DEFAULT_LINKER
);
2415 len
+= strlen (machine_suffix
);
2417 multilib_name
= name
;
2418 multilib_os_name
= name
;
2419 if (multilib
&& multilib_os_dir
)
2421 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2422 int len2
= strlen (multilib_os_dir
) + 1;
2424 len
+= len1
> len2
? len1
: len2
;
2426 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2428 if (strcmp (multilib_os_dir
, ".") != 0)
2429 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2433 temp
= xmalloc (len
);
2435 /* Determine the filename to execute (special case for absolute paths). */
2437 if (IS_ABSOLUTE_PATH (name
))
2439 if (access (name
, mode
) == 0)
2441 strcpy (temp
, name
);
2446 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2448 const char *this_name
2449 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2453 /* Some systems have a suffix for executable files.
2454 So try appending that first. */
2455 if (file_suffix
[0] != 0)
2457 strcpy (temp
, pl
->prefix
);
2458 strcat (temp
, machine_suffix
);
2459 strcat (temp
, multilib_name
);
2460 strcat (temp
, file_suffix
);
2461 if (access_check (temp
, mode
) == 0)
2463 if (pl
->used_flag_ptr
!= 0)
2464 *pl
->used_flag_ptr
= 1;
2469 /* Now try just the multilib_name. */
2470 strcpy (temp
, pl
->prefix
);
2471 strcat (temp
, machine_suffix
);
2472 strcat (temp
, multilib_name
);
2473 if (access_check (temp
, mode
) == 0)
2475 if (pl
->used_flag_ptr
!= 0)
2476 *pl
->used_flag_ptr
= 1;
2481 /* Certain prefixes are tried with just the machine type,
2482 not the version. This is used for finding as, ld, etc. */
2483 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2485 /* Some systems have a suffix for executable files.
2486 So try appending that first. */
2487 if (file_suffix
[0] != 0)
2489 strcpy (temp
, pl
->prefix
);
2490 strcat (temp
, just_machine_suffix
);
2491 strcat (temp
, multilib_name
);
2492 strcat (temp
, file_suffix
);
2493 if (access_check (temp
, mode
) == 0)
2495 if (pl
->used_flag_ptr
!= 0)
2496 *pl
->used_flag_ptr
= 1;
2501 strcpy (temp
, pl
->prefix
);
2502 strcat (temp
, just_machine_suffix
);
2503 strcat (temp
, multilib_name
);
2504 if (access_check (temp
, mode
) == 0)
2506 if (pl
->used_flag_ptr
!= 0)
2507 *pl
->used_flag_ptr
= 1;
2512 /* Certain prefixes can't be used without the machine suffix
2513 when the machine or version is explicitly specified. */
2514 if (! pl
->require_machine_suffix
)
2516 /* Some systems have a suffix for executable files.
2517 So try appending that first. */
2518 if (file_suffix
[0] != 0)
2520 strcpy (temp
, pl
->prefix
);
2521 strcat (temp
, this_name
);
2522 strcat (temp
, file_suffix
);
2523 if (access_check (temp
, mode
) == 0)
2525 if (pl
->used_flag_ptr
!= 0)
2526 *pl
->used_flag_ptr
= 1;
2531 strcpy (temp
, pl
->prefix
);
2532 strcat (temp
, this_name
);
2533 if (access_check (temp
, mode
) == 0)
2535 if (pl
->used_flag_ptr
!= 0)
2536 *pl
->used_flag_ptr
= 1;
2546 /* Ranking of prefixes in the sort list. -B prefixes are put before
2549 enum path_prefix_priority
2551 PREFIX_PRIORITY_B_OPT
,
2552 PREFIX_PRIORITY_LAST
2555 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2556 order according to PRIORITY. Within each PRIORITY, new entries are
2559 If WARN is nonzero, we will warn if no file is found
2560 through this prefix. WARN should point to an int
2561 which will be set to 1 if this entry is used.
2563 COMPONENT is the value to be passed to update_path.
2565 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2566 the complete value of machine_suffix.
2567 2 means try both machine_suffix and just_machine_suffix. */
2570 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
,
2572 struct path_prefix
*pprefix
;
2574 const char *component
;
2575 /* enum prefix_priority */ int priority
;
2576 int require_machine_suffix
;
2580 struct prefix_list
*pl
, **prev
;
2583 for (prev
= &pprefix
->plist
;
2584 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2585 prev
= &(*prev
)->next
)
2588 /* Keep track of the longest prefix. */
2590 prefix
= update_path (prefix
, component
);
2591 len
= strlen (prefix
);
2592 if (len
> pprefix
->max_len
)
2593 pprefix
->max_len
= len
;
2595 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2596 pl
->prefix
= prefix
;
2597 pl
->require_machine_suffix
= require_machine_suffix
;
2598 pl
->used_flag_ptr
= warn
;
2599 pl
->priority
= priority
;
2600 pl
->os_multilib
= os_multilib
;
2604 /* Insert after PREV. */
2609 /* Same as add_prefix, but prepending target_system_root to prefix. */
2611 add_sysrooted_prefix (pprefix
, prefix
, component
, priority
,
2612 require_machine_suffix
, warn
, os_multilib
)
2613 struct path_prefix
*pprefix
;
2615 const char *component
;
2616 /* enum prefix_priority */ int priority
;
2617 int require_machine_suffix
;
2621 if (!IS_ABSOLUTE_PATH (prefix
))
2624 if (target_system_root
)
2626 if (target_sysroot_suffix
)
2627 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2628 prefix
= concat (target_system_root
, prefix
, NULL
);
2630 /* We have to override this because GCC's notion of sysroot
2631 moves along with GCC. */
2635 add_prefix (pprefix
, prefix
, component
, priority
,
2636 require_machine_suffix
, warn
, os_multilib
);
2639 /* Execute the command specified by the arguments on the current line of spec.
2640 When using pipes, this includes several piped-together commands
2641 with `|' between them.
2643 Return 0 if successful, -1 if failed. */
2649 int n_commands
; /* # of command. */
2653 const char *prog
; /* program name. */
2654 const char **argv
; /* vector of args. */
2655 int pid
; /* pid of process for this command. */
2658 struct command
*commands
; /* each command buffer with above info. */
2660 if (processing_spec_function
)
2663 /* Count # of piped commands. */
2664 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2665 if (strcmp (argbuf
[i
], "|") == 0)
2668 /* Get storage for each command. */
2669 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2671 /* Split argbuf into its separate piped processes,
2672 and record info about each one.
2673 Also search for the programs that are to be run. */
2675 commands
[0].prog
= argbuf
[0]; /* first command. */
2676 commands
[0].argv
= &argbuf
[0];
2677 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2680 commands
[0].argv
[0] = string
;
2682 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2683 if (strcmp (argbuf
[i
], "|") == 0)
2684 { /* each command. */
2685 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2686 fatal ("-pipe not supported");
2688 argbuf
[i
] = 0; /* termination of command args. */
2689 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2690 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2691 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2694 commands
[n_commands
].argv
[0] = string
;
2698 argbuf
[argbuf_index
] = 0;
2700 /* If -v, print what we are about to do, and maybe query. */
2704 /* For help listings, put a blank line between sub-processes. */
2705 if (print_help_list
)
2706 fputc ('\n', stderr
);
2708 /* Print each piped command as a separate line. */
2709 for (i
= 0; i
< n_commands
; i
++)
2711 const char *const *j
;
2713 if (verbose_only_flag
)
2715 for (j
= commands
[i
].argv
; *j
; j
++)
2718 fprintf (stderr
, " \"");
2719 for (p
= *j
; *p
; ++p
)
2721 if (*p
== '"' || *p
== '\\' || *p
== '$')
2722 fputc ('\\', stderr
);
2725 fputc ('"', stderr
);
2729 for (j
= commands
[i
].argv
; *j
; j
++)
2730 fprintf (stderr
, " %s", *j
);
2732 /* Print a pipe symbol after all but the last command. */
2733 if (i
+ 1 != n_commands
)
2734 fprintf (stderr
, " |");
2735 fprintf (stderr
, "\n");
2738 if (verbose_only_flag
!= 0)
2741 notice ("\nGo ahead? (y or n) ");
2745 while (getchar () != '\n')
2748 if (i
!= 'y' && i
!= 'Y')
2753 #ifdef ENABLE_VALGRIND_CHECKING
2754 /* Run the each command through valgrind. To simplify prepending the
2755 path to valgrind and the option "-q" (for quiet operation unless
2756 something triggers), we allocate a separate argv array. */
2758 for (i
= 0; i
< n_commands
; i
++)
2764 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2767 argv
= alloca ((argc
+ 3) * sizeof (char *));
2769 argv
[0] = VALGRIND_PATH
;
2771 for (j
= 2; j
< argc
+ 2; j
++)
2772 argv
[j
] = commands
[i
].argv
[j
- 2];
2775 commands
[i
].argv
= argv
;
2776 commands
[i
].prog
= argv
[0];
2780 /* Run each piped subprocess. */
2782 for (i
= 0; i
< n_commands
; i
++)
2784 char *errmsg_fmt
, *errmsg_arg
;
2785 const char *string
= commands
[i
].argv
[0];
2787 /* For some bizarre reason, the second argument of execvp() is
2788 char *const *, not const char *const *. */
2789 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2790 programname
, temp_filename
,
2791 &errmsg_fmt
, &errmsg_arg
,
2792 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2793 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2794 | (string
== commands
[i
].prog
2795 ? PEXECUTE_SEARCH
: 0)
2796 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2798 if (commands
[i
].pid
== -1)
2799 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2801 if (string
!= commands
[i
].prog
)
2802 free ((void *) string
);
2807 /* Wait for all the subprocesses to finish.
2808 We don't care what order they finish in;
2809 we know that N_COMMANDS waits will get them all.
2810 Ignore subprocesses that we don't know about,
2811 since they can be spawned by the process that exec'ed us. */
2815 #ifdef HAVE_GETRUSAGE
2817 double ut
= 0.0, st
= 0.0;
2820 for (i
= 0; i
< n_commands
;)
2826 pid
= pwait (commands
[i
].pid
, &status
, 0);
2830 #ifdef HAVE_GETRUSAGE
2833 /* getrusage returns the total resource usage of all children
2834 up to now. Copy the previous values into prus, get the
2835 current statistics, then take the difference. */
2838 getrusage (RUSAGE_CHILDREN
, &rus
);
2839 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2840 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2841 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2843 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2844 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2845 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2849 for (j
= 0; j
< n_commands
; j
++)
2850 if (commands
[j
].pid
== pid
)
2853 if (WIFSIGNALED (status
))
2856 /* SIGPIPE is a special case. It happens in -pipe mode
2857 when the compiler dies before the preprocessor is
2858 done, or the assembler dies before the compiler is
2859 done. There's generally been an error already, and
2860 this is just fallout. So don't generate another error
2861 unless we would otherwise have succeeded. */
2862 if (WTERMSIG (status
) == SIGPIPE
2863 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2868 Internal error: %s (program %s)\n\
2869 Please submit a full bug report.\n\
2870 See %s for instructions.",
2871 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2876 else if (WIFEXITED (status
)
2877 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2879 if (WEXITSTATUS (status
) > greatest_status
)
2880 greatest_status
= WEXITSTATUS (status
);
2883 #ifdef HAVE_GETRUSAGE
2884 if (report_times
&& ut
+ st
!= 0)
2885 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2894 /* Find all the switches given to us
2895 and make a vector describing them.
2896 The elements of the vector are strings, one per switch given.
2897 If a switch uses following arguments, then the `part1' field
2898 is the switch itself and the `args' field
2899 is a null-terminated vector containing the following arguments.
2900 The `live_cond' field is:
2902 1 if the switch is true in a conditional spec,
2903 -1 if false (overridden by a later switch)
2904 -2 if this switch should be ignored (used in %<S)
2905 The `validated' field is nonzero if any spec has looked at this switch;
2906 if it remains zero at the end of the run, it must be meaningless. */
2909 #define SWITCH_FALSE -1
2910 #define SWITCH_IGNORE -2
2911 #define SWITCH_LIVE 1
2918 unsigned char validated
;
2919 unsigned char ordering
;
2922 static struct switchstr
*switches
;
2924 static int n_switches
;
2929 const char *language
;
2932 /* Also a vector of input files specified. */
2934 static struct infile
*infiles
;
2938 /* This counts the number of libraries added by lang_specific_driver, so that
2939 we can tell if there were any user supplied any files or libraries. */
2941 static int added_libraries
;
2943 /* And a vector of corresponding output files is made up later. */
2945 const char **outfiles
;
2947 /* Used to track if none of the -B paths are used. */
2950 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2951 static int *warn_std_ptr
= 0;
2953 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2955 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2956 is true if we should look for an executable suffix. DO_OBJ
2957 is true if we should look for an object suffix. */
2960 convert_filename (name
, do_exe
, do_obj
)
2962 int do_exe ATTRIBUTE_UNUSED
;
2963 int do_obj ATTRIBUTE_UNUSED
;
2965 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2973 len
= strlen (name
);
2975 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2976 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2977 if (do_obj
&& len
> 2
2978 && name
[len
- 2] == '.'
2979 && name
[len
- 1] == 'o')
2981 obstack_grow (&obstack
, name
, len
- 2);
2982 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2983 name
= obstack_finish (&obstack
);
2987 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2988 /* If there is no filetype, make it the executable suffix (which includes
2989 the "."). But don't get confused if we have just "-o". */
2990 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2993 for (i
= len
- 1; i
>= 0; i
--)
2994 if (IS_DIR_SEPARATOR (name
[i
]))
2997 for (i
++; i
< len
; i
++)
3001 obstack_grow (&obstack
, name
, len
);
3002 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3003 strlen (TARGET_EXECUTABLE_SUFFIX
));
3004 name
= obstack_finish (&obstack
);
3011 /* Display the command line switches accepted by gcc. */
3015 printf (_("Usage: %s [options] file...\n"), programname
);
3016 fputs (_("Options:\n"), stdout
);
3018 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3019 fputs (_(" --help Display this information\n"), stdout
);
3020 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3022 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3023 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3024 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3025 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3026 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3027 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3028 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3029 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3030 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3032 -print-multi-lib Display the mapping between command line options and\n\
3033 multiple library search directories\n"), stdout
);
3034 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3035 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3036 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3037 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3038 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3039 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3040 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3041 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3042 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3043 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3044 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3045 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3046 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3047 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3048 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3049 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3050 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3051 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3052 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3053 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3054 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3056 -x <language> Specify the language of the following input files\n\
3057 Permissible languages include: c c++ assembler none\n\
3058 'none' means revert to the default behavior of\n\
3059 guessing the language based on the file's extension\n\
3063 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3064 passed on to the various sub-processes invoked by %s. In order to pass\n\
3065 other options on to these processes the -W<letter> options must be used.\n\
3068 /* The rest of the options are displayed by invocations of the various
3073 add_preprocessor_option (option
, len
)
3077 n_preprocessor_options
++;
3079 if (! preprocessor_options
)
3080 preprocessor_options
3081 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3083 preprocessor_options
3084 = (char **) xrealloc (preprocessor_options
,
3085 n_preprocessor_options
* sizeof (char *));
3087 preprocessor_options
[n_preprocessor_options
- 1] =
3088 save_string (option
, len
);
3092 add_assembler_option (option
, len
)
3096 n_assembler_options
++;
3098 if (! assembler_options
)
3100 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3103 = (char **) xrealloc (assembler_options
,
3104 n_assembler_options
* sizeof (char *));
3106 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3110 add_linker_option (option
, len
)
3116 if (! linker_options
)
3118 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3121 = (char **) xrealloc (linker_options
,
3122 n_linker_options
* sizeof (char *));
3124 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3127 /* Create the vector `switches' and its contents.
3128 Store its length in `n_switches'. */
3131 process_command (argc
, argv
)
3133 const char *const *argv
;
3138 const char *spec_lang
= 0;
3139 int last_language_n_infiles
;
3142 int lang_n_infiles
= 0;
3143 #ifdef MODIFY_TARGET_NAME
3144 int is_modify_target_name
;
3148 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3152 added_libraries
= 0;
3154 /* Figure compiler version from version string. */
3156 compiler_version
= temp1
= xstrdup (version_string
);
3158 for (; *temp1
; ++temp1
)
3167 /* If there is a -V or -b option (or both), process it now, before
3168 trying to interpret the rest of the command line. */
3169 if (argc
> 1 && argv
[1][0] == '-'
3170 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3172 const char *new_version
= DEFAULT_TARGET_VERSION
;
3173 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3174 const char *progname
= argv
[0];
3179 while (argc
> 1 && argv
[1][0] == '-'
3180 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3182 char opt
= argv
[1][1];
3184 if (argv
[1][2] != '\0')
3197 fatal ("`-%c' option must have argument", opt
);
3204 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3205 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3207 new_argv0
= xmemdup (progname
, baselen
,
3208 baselen
+ concat_length (new_version
, new_machine
,
3209 "-gcc-", NULL
) + 1);
3210 strcpy (new_argv0
+ baselen
, new_machine
);
3211 strcat (new_argv0
, "-gcc-");
3212 strcat (new_argv0
, new_version
);
3214 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3215 (argc
+ 1) * sizeof (argv
[0]));
3216 new_argv
[0] = new_argv0
;
3218 execvp (new_argv0
, new_argv
);
3219 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3222 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3223 see if we can create it from the pathname specified in argv[0]. */
3226 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3227 if (!gcc_exec_prefix
)
3229 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3230 standard_exec_prefix
);
3231 if (gcc_exec_prefix
)
3232 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3236 if (gcc_exec_prefix
)
3238 int len
= strlen (gcc_exec_prefix
);
3240 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3241 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3243 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3244 if (IS_DIR_SEPARATOR (*temp
)
3245 && strncmp (temp
+ 1, "lib", 3) == 0
3246 && IS_DIR_SEPARATOR (temp
[4])
3247 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3248 len
-= sizeof ("/lib/gcc-lib/") - 1;
3251 set_std_prefix (gcc_exec_prefix
, len
);
3252 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3253 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3254 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3255 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3258 /* COMPILER_PATH and LIBRARY_PATH have values
3259 that are lists of directory names with colons. */
3261 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3264 const char *startp
, *endp
;
3265 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3267 startp
= endp
= temp
;
3270 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3272 strncpy (nstore
, startp
, endp
- startp
);
3274 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3275 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3277 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3278 nstore
[endp
- startp
+ 1] = 0;
3281 nstore
[endp
- startp
] = 0;
3282 add_prefix (&exec_prefixes
, nstore
, 0,
3283 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3284 add_prefix (&include_prefixes
,
3285 concat (nstore
, "include", NULL
),
3286 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3289 endp
= startp
= endp
+ 1;
3296 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3297 if (temp
&& *cross_compile
== '0')
3299 const char *startp
, *endp
;
3300 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3302 startp
= endp
= temp
;
3305 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3307 strncpy (nstore
, startp
, endp
- startp
);
3309 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3310 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3312 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3313 nstore
[endp
- startp
+ 1] = 0;
3316 nstore
[endp
- startp
] = 0;
3317 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3318 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3321 endp
= startp
= endp
+ 1;
3328 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3329 GET_ENVIRONMENT (temp
, "LPATH");
3330 if (temp
&& *cross_compile
== '0')
3332 const char *startp
, *endp
;
3333 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3335 startp
= endp
= temp
;
3338 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3340 strncpy (nstore
, startp
, endp
- startp
);
3342 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3343 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3345 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3346 nstore
[endp
- startp
+ 1] = 0;
3349 nstore
[endp
- startp
] = 0;
3350 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3351 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3354 endp
= startp
= endp
+ 1;
3361 /* Convert new-style -- options to old-style. */
3362 translate_options (&argc
, &argv
);
3364 /* Do language-specific adjustment/addition of flags. */
3365 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3367 /* Scan argv twice. Here, the first time, just count how many switches
3368 there will be in their vector, and how many input files in theirs.
3369 Here we also parse the switches that cc itself uses (e.g. -v). */
3371 for (i
= 1; i
< argc
; i
++)
3373 if (! strcmp (argv
[i
], "-dumpspecs"))
3375 struct spec_list
*sl
;
3377 for (sl
= specs
; sl
; sl
= sl
->next
)
3378 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3379 if (link_command_spec
)
3380 printf ("*link_command:\n%s\n\n", link_command_spec
);
3383 else if (! strcmp (argv
[i
], "-dumpversion"))
3385 printf ("%s\n", spec_version
);
3388 else if (! strcmp (argv
[i
], "-dumpmachine"))
3390 printf ("%s\n", spec_machine
);
3393 else if (strcmp (argv
[i
], "-fversion") == 0)
3395 /* translate_options () has turned --version into -fversion. */
3396 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3397 fputs (_("Copyright (C) 2003 Free Software Foundation, Inc.\n"),
3399 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3400 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3404 else if (strcmp (argv
[i
], "-fhelp") == 0)
3406 /* translate_options () has turned --help into -fhelp. */
3407 print_help_list
= 1;
3409 /* We will be passing a dummy file on to the sub-processes. */
3413 /* CPP driver cannot obtain switch from cc1_options. */
3415 add_preprocessor_option ("--help", 6);
3416 add_assembler_option ("--help", 6);
3417 add_linker_option ("--help", 6);
3419 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3421 /* translate_options() has turned --target-help into -ftarget-help. */
3422 target_help_flag
= 1;
3424 /* We will be passing a dummy file on to the sub-processes. */
3428 /* CPP driver cannot obtain switch from cc1_options. */
3430 add_preprocessor_option ("--target-help", 13);
3431 add_assembler_option ("--target-help", 13);
3432 add_linker_option ("--target-help", 13);
3434 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3436 pass_exit_codes
= 1;
3439 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3440 print_search_dirs
= 1;
3441 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3442 print_file_name
= "libgcc.a";
3443 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3444 print_file_name
= argv
[i
] + 17;
3445 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3446 print_prog_name
= argv
[i
] + 17;
3447 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3448 print_multi_lib
= 1;
3449 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3450 print_multi_directory
= 1;
3451 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3452 print_multi_os_directory
= 1;
3453 else if (! strncmp (argv
[i
], "-Wa,", 4))
3456 /* Pass the rest of this option to the assembler. */
3458 /* Split the argument at commas. */
3460 for (j
= 4; argv
[i
][j
]; j
++)
3461 if (argv
[i
][j
] == ',')
3463 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3467 /* Record the part after the last comma. */
3468 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3470 else if (! strncmp (argv
[i
], "-Wp,", 4))
3473 /* Pass the rest of this option to the preprocessor. */
3475 /* Split the argument at commas. */
3477 for (j
= 4; argv
[i
][j
]; j
++)
3478 if (argv
[i
][j
] == ',')
3480 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3484 /* Record the part after the last comma. */
3485 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3487 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3488 /* The +e options to the C++ front-end. */
3490 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3493 /* Split the argument at commas. */
3494 for (j
= 3; argv
[i
][j
]; j
++)
3495 n_infiles
+= (argv
[i
][j
] == ',');
3497 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3500 fatal ("argument to `-Xlinker' is missing");
3505 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3508 fatal ("argument to `-Xpreprocessor' is missing");
3510 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3512 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3515 fatal ("argument to `-Xassembler' is missing");
3517 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3519 else if (strcmp (argv
[i
], "-l") == 0)
3522 fatal ("argument to `-l' is missing");
3527 else if (strncmp (argv
[i
], "-l", 2) == 0)
3529 else if (strcmp (argv
[i
], "-save-temps") == 0)
3531 save_temps_flag
= 1;
3534 else if (strcmp (argv
[i
], "-specs") == 0)
3536 struct user_specs
*user
= (struct user_specs
*)
3537 xmalloc (sizeof (struct user_specs
));
3539 fatal ("argument to `-specs' is missing");
3541 user
->next
= (struct user_specs
*) 0;
3542 user
->filename
= argv
[i
];
3543 if (user_specs_tail
)
3544 user_specs_tail
->next
= user
;
3546 user_specs_head
= user
;
3547 user_specs_tail
= user
;
3549 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3551 struct user_specs
*user
= (struct user_specs
*)
3552 xmalloc (sizeof (struct user_specs
));
3553 if (strlen (argv
[i
]) == 7)
3554 fatal ("argument to `-specs=' is missing");
3556 user
->next
= (struct user_specs
*) 0;
3557 user
->filename
= argv
[i
] + 7;
3558 if (user_specs_tail
)
3559 user_specs_tail
->next
= user
;
3561 user_specs_head
= user
;
3562 user_specs_tail
= user
;
3564 else if (strcmp (argv
[i
], "-time") == 0)
3566 else if (strcmp (argv
[i
], "-pipe") == 0)
3568 /* -pipe has to go into the switches array as well as
3573 else if (strcmp (argv
[i
], "-###") == 0)
3575 /* This is similar to -v except that there is no execution
3576 of the commands and the echoed arguments are quoted. It
3577 is intended for use in shell scripts to capture the
3578 driver-generated command line. */
3579 verbose_only_flag
++;
3582 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3584 const char *p
= &argv
[i
][1];
3591 fatal ("`-%c' must come at the start of the command line", c
);
3599 if (p
[1] == 0 && i
+ 1 == argc
)
3600 fatal ("argument to `-B' is missing");
3606 len
= strlen (value
);
3608 /* Catch the case where the user has forgotten to append a
3609 directory separator to the path. Note, they may be using
3610 -B to add an executable name prefix, eg "i386-elf-", in
3611 order to distinguish between multiple installations of
3612 GCC in the same directory. Hence we must check to see
3613 if appending a directory separator actually makes a
3614 valid directory name. */
3615 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3616 && is_directory (value
, "", 0))
3618 char *tmp
= xmalloc (len
+ 2);
3619 strcpy (tmp
, value
);
3620 tmp
[len
] = DIR_SEPARATOR
;
3625 /* As a kludge, if the arg is "[foo/]stageN/", just
3626 add "[foo/]include" to the include prefix. */
3629 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3630 && strncmp (value
+ len
- 7, "stage", 5) == 0
3631 && ISDIGIT (value
[len
- 2])
3632 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3635 add_prefix (&include_prefixes
, "include", NULL
,
3636 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3639 char * string
= xmalloc (len
+ 1);
3641 strncpy (string
, value
, len
- 7);
3642 strcpy (string
+ len
- 7, "include");
3643 add_prefix (&include_prefixes
, string
, NULL
,
3644 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3648 add_prefix (&exec_prefixes
, value
, NULL
,
3649 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3650 add_prefix (&startfile_prefixes
, value
, NULL
,
3651 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3652 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3653 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3658 case 'v': /* Print our subcommands and print versions. */
3660 /* If they do anything other than exactly `-v', don't set
3661 verbose_flag; rather, continue on to give the error. */
3679 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3684 /* Forward scan, just in case -S or -c is specified
3691 if (argv
[j
][0] == '-')
3693 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3699 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3700 j
+= skip
- (argv
[j
][2] != 0);
3701 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3708 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3710 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3712 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3719 #ifdef MODIFY_TARGET_NAME
3720 is_modify_target_name
= 0;
3722 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3723 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3726 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3727 + strlen (spec_machine
));
3730 int made_addition
= 0;
3732 is_modify_target_name
= 1;
3733 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3735 if (modify_target
[j
].add_del
== DELETE
3736 && (! strncmp (q
, modify_target
[j
].str
,
3737 strlen (modify_target
[j
].str
))))
3738 p
+= strlen (modify_target
[j
].str
);
3739 else if (modify_target
[j
].add_del
== ADD
3740 && ! made_addition
&& *p
== '-')
3742 for (r
= modify_target
[j
].str
; *r
!= 0; )
3750 spec_machine
= new_name
;
3753 if (is_modify_target_name
)
3759 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3760 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3761 else if (WORD_SWITCH_TAKES_ARG (p
))
3762 i
+= WORD_SWITCH_TAKES_ARG (p
);
3772 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3773 fatal ("cannot specify -o with -c or -S and multiple compilations");
3775 if ((save_temps_flag
|| report_times
) && use_pipes
)
3777 /* -save-temps overrides -pipe, so that temp files are produced */
3778 if (save_temps_flag
)
3779 error ("warning: -pipe ignored because -save-temps specified");
3780 /* -time overrides -pipe because we can't get correct stats when
3781 multiple children are running at once. */
3782 else if (report_times
)
3783 error ("warning: -pipe ignored because -time specified");
3788 /* Set up the search paths before we go looking for config files. */
3790 /* These come before the md prefixes so that we will find gcc's subcommands
3791 (such as cpp) rather than those of the host system. */
3792 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3793 as well as trying the machine and the version. */
3795 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3796 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3797 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3798 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3799 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3800 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3803 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3804 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3805 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3806 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3808 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3809 dir_separator_str
, NULL
);
3811 /* If tooldir is relative, base it on exec_prefixes. A relative
3812 tooldir lets us move the installed tree as a unit.
3814 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3815 directories, so that we can search both the user specified directory
3816 and the standard place. */
3818 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3820 if (gcc_exec_prefix
)
3822 char *gcc_exec_tooldir_prefix
3823 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3824 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3826 add_prefix (&exec_prefixes
,
3827 concat (gcc_exec_tooldir_prefix
, "bin",
3828 dir_separator_str
, NULL
),
3829 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3830 add_prefix (&startfile_prefixes
,
3831 concat (gcc_exec_tooldir_prefix
, "lib",
3832 dir_separator_str
, NULL
),
3833 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3836 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3837 dir_separator_str
, spec_version
,
3838 dir_separator_str
, tooldir_prefix
, NULL
);
3841 add_prefix (&exec_prefixes
,
3842 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3843 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3844 add_prefix (&startfile_prefixes
,
3845 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3846 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3848 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3849 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3850 then consider it to relocate with the rest of the GCC installation
3851 if GCC_EXEC_PREFIX is set.
3852 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3853 if (target_system_root
&& gcc_exec_prefix
)
3855 char *tmp_prefix
= make_relative_prefix (argv
[0],
3856 standard_bindir_prefix
,
3857 target_system_root
);
3858 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3860 target_system_root
= tmp_prefix
;
3861 target_system_root_changed
= 1;
3866 /* More prefixes are enabled in main, after we read the specs file
3867 and determine whether this is cross-compilation or not. */
3869 /* Then create the space for the vectors and scan again. */
3871 switches
= ((struct switchstr
*)
3872 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3873 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3876 last_language_n_infiles
= -1;
3878 /* This, time, copy the text of each switch and store a pointer
3879 to the copy in the vector of switches.
3880 Store all the infiles in their vector. */
3882 for (i
= 1; i
< argc
; i
++)
3884 /* Just skip the switches that were handled by the preceding loop. */
3885 #ifdef MODIFY_TARGET_NAME
3886 is_modify_target_name
= 0;
3888 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3889 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3890 is_modify_target_name
= 1;
3892 if (is_modify_target_name
)
3896 if (! strncmp (argv
[i
], "-Wa,", 4))
3898 else if (! strncmp (argv
[i
], "-Wp,", 4))
3900 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3902 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3904 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3906 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3908 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3910 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3912 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3914 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3916 else if (! strcmp (argv
[i
], "-ftarget-help"))
3918 else if (! strcmp (argv
[i
], "-fhelp"))
3920 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3922 /* Compensate for the +e options to the C++ front-end;
3923 they're there simply for cfront call-compatibility. We do
3924 some magic in default_compilers to pass them down properly.
3925 Note we deliberately start at the `+' here, to avoid passing
3926 -e0 or -e1 down into the linker. */
3927 switches
[n_switches
].part1
= &argv
[i
][0];
3928 switches
[n_switches
].args
= 0;
3929 switches
[n_switches
].live_cond
= SWITCH_OK
;
3930 switches
[n_switches
].validated
= 0;
3933 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3936 /* Split the argument at commas. */
3938 for (j
= 4; argv
[i
][j
]; j
++)
3939 if (argv
[i
][j
] == ',')
3941 infiles
[n_infiles
].language
= "*";
3942 infiles
[n_infiles
++].name
3943 = save_string (argv
[i
] + prev
, j
- prev
);
3946 /* Record the part after the last comma. */
3947 infiles
[n_infiles
].language
= "*";
3948 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3950 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3952 infiles
[n_infiles
].language
= "*";
3953 infiles
[n_infiles
++].name
= argv
[++i
];
3955 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3957 infiles
[n_infiles
].language
= "*";
3958 infiles
[n_infiles
++].name
= argv
[++i
];
3960 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3962 infiles
[n_infiles
].language
= "*";
3963 infiles
[n_infiles
++].name
= argv
[++i
];
3965 else if (strcmp (argv
[i
], "-l") == 0)
3966 { /* POSIX allows separation of -l and the lib arg;
3967 canonicalize by concatenating -l with its arg */
3968 infiles
[n_infiles
].language
= "*";
3969 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3971 else if (strncmp (argv
[i
], "-l", 2) == 0)
3973 infiles
[n_infiles
].language
= "*";
3974 infiles
[n_infiles
++].name
= argv
[i
];
3976 else if (strcmp (argv
[i
], "-specs") == 0)
3978 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3980 else if (strcmp (argv
[i
], "-time") == 0)
3982 else if (strcmp (argv
[i
], "-###") == 0)
3984 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3986 const char *p
= &argv
[i
][1];
3991 if (p
[1] == 0 && i
+ 1 == argc
)
3992 fatal ("argument to `-x' is missing");
3994 spec_lang
= argv
[++i
];
3997 if (! strcmp (spec_lang
, "none"))
3998 /* Suppress the warning if -xnone comes after the last input
3999 file, because alternate command interfaces like g++ might
4000 find it useful to place -xnone after each input file. */
4003 last_language_n_infiles
= n_infiles
;
4006 switches
[n_switches
].part1
= p
;
4007 /* Deal with option arguments in separate argv elements. */
4008 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4009 || WORD_SWITCH_TAKES_ARG (p
))
4012 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4016 /* Count only the option arguments in separate argv elements. */
4017 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4019 if (i
+ n_args
>= argc
)
4020 fatal ("argument to `-%s' is missing", p
);
4021 switches
[n_switches
].args
4022 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
4024 switches
[n_switches
].args
[j
++] = argv
[++i
];
4025 /* Null-terminate the vector. */
4026 switches
[n_switches
].args
[j
] = 0;
4028 else if (strchr (switches_need_spaces
, c
))
4030 /* On some systems, ld cannot handle some options without
4031 a space. So split the option from its argument. */
4032 char *part1
= (char *) xmalloc (2);
4036 switches
[n_switches
].part1
= part1
;
4037 switches
[n_switches
].args
4038 = (const char **) xmalloc (2 * sizeof (const char *));
4039 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4040 switches
[n_switches
].args
[1] = 0;
4043 switches
[n_switches
].args
= 0;
4045 switches
[n_switches
].live_cond
= SWITCH_OK
;
4046 switches
[n_switches
].validated
= 0;
4047 switches
[n_switches
].ordering
= 0;
4048 /* These are always valid, since gcc.c itself understands them. */
4049 if (!strcmp (p
, "save-temps")
4050 || !strcmp (p
, "static-libgcc")
4051 || !strcmp (p
, "shared-libgcc")
4052 || !strcmp (p
, "pipe"))
4053 switches
[n_switches
].validated
= 1;
4056 char ch
= switches
[n_switches
].part1
[0];
4058 switches
[n_switches
].validated
= 1;
4064 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4065 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4068 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4070 perror_with_name (argv
[i
]);
4075 infiles
[n_infiles
].language
= spec_lang
;
4076 infiles
[n_infiles
++].name
= argv
[i
];
4081 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4082 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4084 /* Ensure we only invoke each subprocess once. */
4085 if (target_help_flag
|| print_help_list
)
4089 /* Create a dummy input file, so that we can pass --target-help on to
4090 the various sub-processes. */
4091 infiles
[0].language
= "c";
4092 infiles
[0].name
= "help-dummy";
4094 if (target_help_flag
)
4096 switches
[n_switches
].part1
= "--target-help";
4097 switches
[n_switches
].args
= 0;
4098 switches
[n_switches
].live_cond
= SWITCH_OK
;
4099 switches
[n_switches
].validated
= 0;
4104 if (print_help_list
)
4106 switches
[n_switches
].part1
= "--help";
4107 switches
[n_switches
].args
= 0;
4108 switches
[n_switches
].live_cond
= SWITCH_OK
;
4109 switches
[n_switches
].validated
= 0;
4115 switches
[n_switches
].part1
= 0;
4116 infiles
[n_infiles
].name
= 0;
4119 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4120 and place that in the environment. */
4123 set_collect_gcc_options ()
4128 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4130 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4131 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4134 for (i
= 0; (int) i
< n_switches
; i
++)
4136 const char *const *args
;
4139 obstack_grow (&collect_obstack
, " ", 1);
4143 /* Ignore elided switches. */
4144 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4147 obstack_grow (&collect_obstack
, "'-", 2);
4148 q
= switches
[i
].part1
;
4149 while ((p
= strchr (q
, '\'')))
4151 obstack_grow (&collect_obstack
, q
, p
- q
);
4152 obstack_grow (&collect_obstack
, "'\\''", 4);
4155 obstack_grow (&collect_obstack
, q
, strlen (q
));
4156 obstack_grow (&collect_obstack
, "'", 1);
4158 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4160 obstack_grow (&collect_obstack
, " '", 2);
4162 while ((p
= strchr (q
, '\'')))
4164 obstack_grow (&collect_obstack
, q
, p
- q
);
4165 obstack_grow (&collect_obstack
, "'\\''", 4);
4168 obstack_grow (&collect_obstack
, q
, strlen (q
));
4169 obstack_grow (&collect_obstack
, "'", 1);
4172 obstack_grow (&collect_obstack
, "\0", 1);
4173 putenv (obstack_finish (&collect_obstack
));
4176 /* Process a spec string, accumulating and running commands. */
4178 /* These variables describe the input file name.
4179 input_file_number is the index on outfiles of this file,
4180 so that the output file name can be stored for later use by %o.
4181 input_basename is the start of the part of the input file
4182 sans all directory names, and basename_length is the number
4183 of characters starting there excluding the suffix .c or whatever. */
4185 static const char *input_filename
;
4186 static int input_file_number
;
4187 size_t input_filename_length
;
4188 static int basename_length
;
4189 static int suffixed_basename_length
;
4190 static const char *input_basename
;
4191 static const char *input_suffix
;
4192 static struct stat input_stat
;
4193 static int input_stat_set
;
4195 /* The compiler used to process the current input file. */
4196 static struct compiler
*input_file_compiler
;
4198 /* These are variables used within do_spec and do_spec_1. */
4200 /* Nonzero if an arg has been started and not yet terminated
4201 (with space, tab or newline). */
4202 static int arg_going
;
4204 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4205 is a temporary file name. */
4206 static int delete_this_arg
;
4208 /* Nonzero means %w has been seen; the next arg to be terminated
4209 is the output file name of this compilation. */
4210 static int this_is_output_file
;
4212 /* Nonzero means %s has been seen; the next arg to be terminated
4213 is the name of a library file and we should try the standard
4214 search dirs for it. */
4215 static int this_is_library_file
;
4217 /* Nonzero means that the input of this command is coming from a pipe. */
4218 static int input_from_pipe
;
4220 /* Nonnull means substitute this for any suffix when outputting a switches
4222 static const char *suffix_subst
;
4224 /* Process the spec SPEC and run the commands specified therein.
4225 Returns 0 if the spec is successfully processed; -1 if failed. */
4233 value
= do_spec_2 (spec
);
4235 /* Force out any unfinished command.
4236 If -pipe, this forces out the last command if it ended in `|'. */
4239 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4242 set_collect_gcc_options ();
4244 if (argbuf_index
> 0)
4260 delete_this_arg
= 0;
4261 this_is_output_file
= 0;
4262 this_is_library_file
= 0;
4263 input_from_pipe
= 0;
4264 suffix_subst
= NULL
;
4266 result
= do_spec_1 (spec
, 0, NULL
);
4268 /* End any pending argument. */
4271 obstack_1grow (&obstack
, 0);
4272 string
= obstack_finish (&obstack
);
4273 if (this_is_library_file
)
4274 string
= find_file (string
);
4275 store_arg (string
, delete_this_arg
, this_is_output_file
);
4276 if (this_is_output_file
)
4277 outfiles
[input_file_number
] = string
;
4285 /* Process the given spec string and add any new options to the end
4286 of the switches/n_switches array. */
4289 do_option_spec (name
, spec
)
4293 unsigned int i
, value_count
, value_len
;
4294 const char *p
, *q
, *value
;
4295 char *tmp_spec
, *tmp_spec_p
;
4297 if (configure_default_options
[0].name
== NULL
)
4300 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4301 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4303 if (i
== ARRAY_SIZE (configure_default_options
))
4306 value
= configure_default_options
[i
].value
;
4307 value_len
= strlen (value
);
4309 /* Compute the size of the final spec. */
4312 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4318 /* Replace each %(VALUE) by the specified value. */
4319 tmp_spec
= alloca (strlen (spec
) + 1
4320 + value_count
* (value_len
- strlen ("%(VALUE)")));
4321 tmp_spec_p
= tmp_spec
;
4323 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4325 memcpy (tmp_spec_p
, q
, p
- q
);
4326 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4327 memcpy (tmp_spec_p
, value
, value_len
);
4328 tmp_spec_p
+= value_len
;
4329 q
= p
+ strlen ("%(VALUE)");
4331 strcpy (tmp_spec_p
, q
);
4333 do_self_spec (tmp_spec
);
4336 /* Process the given spec string and add any new options to the end
4337 of the switches/n_switches array. */
4344 do_spec_1 (" ", 0, NULL
);
4346 if (argbuf_index
> 0)
4351 n_switches
+= argbuf_index
;
4352 switches
= xrealloc (switches
,
4353 sizeof (struct switchstr
) * (n_switches
+ 1));
4355 switches
[n_switches
] = switches
[first
];
4356 for (i
= 0; i
< argbuf_index
; i
++)
4358 struct switchstr
*sw
;
4360 /* Each switch should start with '-'. */
4361 if (argbuf
[i
][0] != '-')
4364 sw
= &switches
[i
+ first
];
4365 sw
->part1
= &argbuf
[i
][1];
4367 sw
->live_cond
= SWITCH_OK
;
4374 /* Process the sub-spec SPEC as a portion of a larger spec.
4375 This is like processing a whole spec except that we do
4376 not initialize at the beginning and we do not supply a
4377 newline by default at the end.
4378 INSWITCH nonzero means don't process %-sequences in SPEC;
4379 in this case, % is treated as an ordinary character.
4380 This is used while substituting switches.
4381 INSWITCH nonzero also causes SPC not to terminate an argument.
4383 Value is zero unless a line was finished
4384 and the command on that line reported an error. */
4387 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4390 const char *soft_matched_part
;
4392 const char *p
= spec
;
4399 /* If substituting a switch, treat all chars like letters.
4400 Otherwise, NL, SPC, TAB and % are special. */
4401 switch (inswitch
? 'a' : c
)
4404 /* End of line: finish any pending argument,
4405 then run the pending command if one has been started. */
4408 obstack_1grow (&obstack
, 0);
4409 string
= obstack_finish (&obstack
);
4410 if (this_is_library_file
)
4411 string
= find_file (string
);
4412 store_arg (string
, delete_this_arg
, this_is_output_file
);
4413 if (this_is_output_file
)
4414 outfiles
[input_file_number
] = string
;
4418 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4420 /* A `|' before the newline means use a pipe here,
4421 but only if -pipe was specified.
4422 Otherwise, execute now and don't pass the `|' as an arg. */
4425 input_from_pipe
= 1;
4432 set_collect_gcc_options ();
4434 if (argbuf_index
> 0)
4440 /* Reinitialize for a new command, and for a new argument. */
4443 delete_this_arg
= 0;
4444 this_is_output_file
= 0;
4445 this_is_library_file
= 0;
4446 input_from_pipe
= 0;
4450 /* End any pending argument. */
4453 obstack_1grow (&obstack
, 0);
4454 string
= obstack_finish (&obstack
);
4455 if (this_is_library_file
)
4456 string
= find_file (string
);
4457 store_arg (string
, delete_this_arg
, this_is_output_file
);
4458 if (this_is_output_file
)
4459 outfiles
[input_file_number
] = string
;
4463 obstack_1grow (&obstack
, c
);
4469 /* Space or tab ends an argument if one is pending. */
4472 obstack_1grow (&obstack
, 0);
4473 string
= obstack_finish (&obstack
);
4474 if (this_is_library_file
)
4475 string
= find_file (string
);
4476 store_arg (string
, delete_this_arg
, this_is_output_file
);
4477 if (this_is_output_file
)
4478 outfiles
[input_file_number
] = string
;
4480 /* Reinitialize for a new argument. */
4482 delete_this_arg
= 0;
4483 this_is_output_file
= 0;
4484 this_is_library_file
= 0;
4491 fatal ("invalid specification! Bug in cc");
4494 obstack_grow (&obstack
, input_basename
, basename_length
);
4499 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4504 delete_this_arg
= 2;
4507 /* Dump out the directories specified with LIBRARY_PATH,
4508 followed by the absolute directories
4509 that we search for startfiles. */
4512 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4513 size_t bufsize
= 100;
4514 char *buffer
= (char *) xmalloc (bufsize
);
4517 for (; pl
; pl
= pl
->next
)
4519 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4520 /* Used on systems which record the specified -L dirs
4521 and use them to search for dynamic linking. */
4522 /* Relative directories always come from -B,
4523 and it is better not to use them for searching
4524 at run time. In particular, stage1 loses. */
4525 if (!IS_ABSOLUTE_PATH (pl
->prefix
))
4528 /* Try subdirectory if there is one. */
4529 if (multilib_dir
!= NULL
4530 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4532 const char *multi_dir
;
4534 multi_dir
= pl
->os_multilib
? multilib_os_dir
4536 if (machine_suffix
&& multilib_dir
)
4538 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4540 bufsize
= (strlen (pl
->prefix
)
4541 + strlen (machine_suffix
)) * 2 + 1;
4542 buffer
= (char *) xrealloc (buffer
, bufsize
);
4543 strcpy (buffer
, pl
->prefix
);
4544 strcat (buffer
, machine_suffix
);
4545 if (is_directory (buffer
, multilib_dir
, 1))
4547 do_spec_1 ("-L", 0, NULL
);
4548 #ifdef SPACE_AFTER_L_OPTION
4549 do_spec_1 (" ", 0, NULL
);
4551 do_spec_1 (buffer
, 1, NULL
);
4552 do_spec_1 (multilib_dir
, 1, NULL
);
4553 /* Make this a separate argument. */
4554 do_spec_1 (" ", 0, NULL
);
4557 if (!pl
->require_machine_suffix
)
4559 if (is_directory (pl
->prefix
, multi_dir
, 1))
4561 do_spec_1 ("-L", 0, NULL
);
4562 #ifdef SPACE_AFTER_L_OPTION
4563 do_spec_1 (" ", 0, NULL
);
4565 do_spec_1 (pl
->prefix
, 1, NULL
);
4566 do_spec_1 (multi_dir
, 1, NULL
);
4567 /* Make this a separate argument. */
4568 do_spec_1 (" ", 0, NULL
);
4574 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4576 do_spec_1 ("-L", 0, NULL
);
4577 #ifdef SPACE_AFTER_L_OPTION
4578 do_spec_1 (" ", 0, NULL
);
4580 do_spec_1 (pl
->prefix
, 1, NULL
);
4581 /* Remove slash from machine_suffix. */
4582 if (strlen (machine_suffix
) >= bufsize
)
4583 bufsize
= strlen (machine_suffix
) * 2 + 1;
4584 buffer
= (char *) xrealloc (buffer
, bufsize
);
4585 strcpy (buffer
, machine_suffix
);
4586 idx
= strlen (buffer
);
4587 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4588 buffer
[idx
- 1] = 0;
4589 do_spec_1 (buffer
, 1, NULL
);
4590 /* Make this a separate argument. */
4591 do_spec_1 (" ", 0, NULL
);
4594 if (!pl
->require_machine_suffix
)
4596 if (is_directory (pl
->prefix
, "", 1))
4598 do_spec_1 ("-L", 0, NULL
);
4599 #ifdef SPACE_AFTER_L_OPTION
4600 do_spec_1 (" ", 0, NULL
);
4602 /* Remove slash from pl->prefix. */
4603 if (strlen (pl
->prefix
) >= bufsize
)
4604 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4605 buffer
= (char *) xrealloc (buffer
, bufsize
);
4606 strcpy (buffer
, pl
->prefix
);
4607 idx
= strlen (buffer
);
4608 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4609 buffer
[idx
- 1] = 0;
4610 do_spec_1 (buffer
, 1, NULL
);
4611 /* Make this a separate argument. */
4612 do_spec_1 (" ", 0, NULL
);
4621 /* %efoo means report an error with `foo' as error message
4622 and don't execute any more commands for this file. */
4626 while (*p
!= 0 && *p
!= '\n')
4628 buf
= (char *) alloca (p
- q
+ 1);
4629 strncpy (buf
, q
, p
- q
);
4636 /* %nfoo means report a notice with `foo' on stderr. */
4640 while (*p
!= 0 && *p
!= '\n')
4642 buf
= (char *) alloca (p
- q
+ 1);
4643 strncpy (buf
, q
, p
- q
);
4645 notice ("%s\n", buf
);
4655 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4656 defined, and it is not a directory, and it is
4657 writable, use it. Otherwise, treat this like any
4658 other temporary file. */
4660 if ((!save_temps_flag
)
4661 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4662 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4664 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4665 strlen (HOST_BIT_BUCKET
));
4666 delete_this_arg
= 0;
4671 goto create_temp_file
;
4675 obstack_1grow (&obstack
, '-');
4676 delete_this_arg
= 0;
4679 /* consume suffix */
4680 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4682 if (p
[0] == '%' && p
[1] == 'O')
4687 goto create_temp_file
;
4691 /* consume suffix */
4692 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4694 if (p
[0] == '%' && p
[1] == 'O')
4699 goto create_temp_file
;
4705 struct temp_name
*t
;
4707 const char *suffix
= p
;
4708 char *saved_suffix
= NULL
;
4710 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4712 suffix_length
= p
- suffix
;
4713 if (p
[0] == '%' && p
[1] == 'O')
4716 /* We don't support extra suffix characters after %O. */
4717 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4719 if (suffix_length
== 0)
4720 suffix
= TARGET_OBJECT_SUFFIX
;
4724 = (char *) xmalloc (suffix_length
4725 + strlen (TARGET_OBJECT_SUFFIX
));
4726 strncpy (saved_suffix
, suffix
, suffix_length
);
4727 strcpy (saved_suffix
+ suffix_length
,
4728 TARGET_OBJECT_SUFFIX
);
4730 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4733 /* If the input_filename has the same suffix specified
4734 for the %g, %u, or %U, and -save-temps is specified,
4735 we could end up using that file as an intermediate
4736 thus clobbering the user's source file (.e.g.,
4737 gcc -save-temps foo.s would clobber foo.s with the
4738 output of cpp0). So check for this condition and
4739 generate a temp file as the intermediate. */
4741 if (save_temps_flag
)
4743 temp_filename_length
= basename_length
+ suffix_length
;
4744 temp_filename
= alloca (temp_filename_length
+ 1);
4745 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4746 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4748 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4749 if (strcmp (temp_filename
, input_filename
) != 0)
4751 struct stat st_temp
;
4753 /* Note, set_input() resets input_stat_set to 0. */
4754 if (input_stat_set
== 0)
4756 input_stat_set
= stat (input_filename
, &input_stat
);
4757 if (input_stat_set
>= 0)
4761 /* If we have the stat for the input_filename
4762 and we can do the stat for the temp_filename
4763 then the they could still refer to the same
4764 file if st_dev/st_ino's are the same. */
4766 if (input_stat_set
!= 1
4767 || stat (temp_filename
, &st_temp
) < 0
4768 || input_stat
.st_dev
!= st_temp
.st_dev
4769 || input_stat
.st_ino
!= st_temp
.st_ino
)
4771 temp_filename
= save_string (temp_filename
,
4772 temp_filename_length
+ 1);
4773 obstack_grow (&obstack
, temp_filename
,
4774 temp_filename_length
);
4776 delete_this_arg
= 0;
4782 /* See if we already have an association of %g/%u/%U and
4784 for (t
= temp_names
; t
; t
= t
->next
)
4785 if (t
->length
== suffix_length
4786 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4787 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4790 /* Make a new association if needed. %u and %j
4792 if (t
== 0 || c
== 'u' || c
== 'j')
4796 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4797 t
->next
= temp_names
;
4800 t
->length
= suffix_length
;
4803 t
->suffix
= saved_suffix
;
4804 saved_suffix
= NULL
;
4807 t
->suffix
= save_string (suffix
, suffix_length
);
4808 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4809 temp_filename
= make_temp_file (t
->suffix
);
4810 temp_filename_length
= strlen (temp_filename
);
4811 t
->filename
= temp_filename
;
4812 t
->filename_length
= temp_filename_length
;
4816 free (saved_suffix
);
4818 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4819 delete_this_arg
= 1;
4825 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4831 struct prefix_list
*pl
= include_prefixes
.plist
;
4833 if (gcc_exec_prefix
)
4835 do_spec_1 ("-iprefix", 1, NULL
);
4836 /* Make this a separate argument. */
4837 do_spec_1 (" ", 0, NULL
);
4838 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4839 do_spec_1 (" ", 0, NULL
);
4842 if (target_system_root_changed
||
4843 (target_system_root
&& target_sysroot_hdrs_suffix
))
4845 do_spec_1 ("-isysroot", 1, NULL
);
4846 /* Make this a separate argument. */
4847 do_spec_1 (" ", 0, NULL
);
4848 do_spec_1 (target_system_root
, 1, NULL
);
4849 if (target_sysroot_hdrs_suffix
)
4850 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4851 do_spec_1 (" ", 0, NULL
);
4854 for (; pl
; pl
= pl
->next
)
4856 do_spec_1 ("-isystem", 1, NULL
);
4857 /* Make this a separate argument. */
4858 do_spec_1 (" ", 0, NULL
);
4859 do_spec_1 (pl
->prefix
, 1, NULL
);
4860 do_spec_1 (" ", 0, NULL
);
4867 int max
= n_infiles
;
4868 max
+= lang_specific_extra_outfiles
;
4870 for (i
= 0; i
< max
; i
++)
4872 store_arg (outfiles
[i
], 0, 0);
4877 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4882 this_is_library_file
= 1;
4886 outfiles
[input_file_number
] = NULL
;
4890 this_is_output_file
= 1;
4895 int cur_index
= argbuf_index
;
4896 /* Handle the {...} following the %W. */
4899 p
= handle_braces (p
+ 1);
4902 /* End any pending argument. */
4905 obstack_1grow (&obstack
, 0);
4906 string
= obstack_finish (&obstack
);
4907 if (this_is_library_file
)
4908 string
= find_file (string
);
4909 store_arg (string
, delete_this_arg
, this_is_output_file
);
4910 if (this_is_output_file
)
4911 outfiles
[input_file_number
] = string
;
4914 /* If any args were output, mark the last one for deletion
4916 if (argbuf_index
!= cur_index
)
4917 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4921 /* %x{OPTION} records OPTION for %X to output. */
4927 /* Skip past the option value and make a copy. */
4932 string
= save_string (p1
+ 1, p
- p1
- 2);
4934 /* See if we already recorded this option. */
4935 for (i
= 0; i
< n_linker_options
; i
++)
4936 if (! strcmp (string
, linker_options
[i
]))
4942 /* This option is new; add it. */
4943 add_linker_option (string
, strlen (string
));
4947 /* Dump out the options accumulated previously using %x. */
4949 for (i
= 0; i
< n_linker_options
; i
++)
4951 do_spec_1 (linker_options
[i
], 1, NULL
);
4952 /* Make each accumulated option a separate argument. */
4953 do_spec_1 (" ", 0, NULL
);
4957 /* Dump out the options accumulated previously using -Wa,. */
4959 for (i
= 0; i
< n_assembler_options
; i
++)
4961 do_spec_1 (assembler_options
[i
], 1, NULL
);
4962 /* Make each accumulated option a separate argument. */
4963 do_spec_1 (" ", 0, NULL
);
4967 /* Dump out the options accumulated previously using -Wp,. */
4969 for (i
= 0; i
< n_preprocessor_options
; i
++)
4971 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4972 /* Make each accumulated option a separate argument. */
4973 do_spec_1 (" ", 0, NULL
);
4977 /* Here are digits and numbers that just process
4978 a certain constant string as a spec. */
4981 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4987 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4993 value
= do_spec_1 (asm_spec
, 0, NULL
);
4999 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5006 const char *const spec
5007 = (input_file_compiler
->cpp_spec
5008 ? input_file_compiler
->cpp_spec
5010 value
= do_spec_1 (spec
, 0, NULL
);
5017 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5023 value
= do_spec_1 (link_spec
, 0, NULL
);
5029 value
= do_spec_1 (lib_spec
, 0, NULL
);
5035 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5041 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
5047 len
= strlen (multilib_dir
);
5048 obstack_blank (&obstack
, len
+ 1);
5049 p
= obstack_next_free (&obstack
) - (len
+ 1);
5052 for (q
= multilib_dir
; *q
; ++q
, ++p
)
5053 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
5058 /* We assume there is a directory
5059 separator at the end of this string. */
5060 if (target_system_root
)
5062 obstack_grow (&obstack
, target_system_root
,
5063 strlen (target_system_root
));
5064 if (target_sysroot_suffix
)
5065 obstack_grow (&obstack
, target_sysroot_suffix
,
5066 strlen (target_sysroot_suffix
));
5071 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5076 /* Here we define characters other than letters and digits. */
5079 p
= handle_braces (p
);
5085 p
= handle_spec_function (p
);
5091 obstack_1grow (&obstack
, '%');
5098 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5100 suffix_subst
= save_string (p
- 1, len
+ 1);
5105 /* Henceforth ignore the option(s) matching the pattern
5110 int have_wildcard
= 0;
5113 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5116 if (p
[len
-1] == '*')
5119 for (i
= 0; i
< n_switches
; i
++)
5120 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5121 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5123 switches
[i
].live_cond
= SWITCH_IGNORE
;
5124 switches
[i
].validated
= 1;
5132 if (soft_matched_part
)
5134 do_spec_1 (soft_matched_part
, 1, NULL
);
5135 do_spec_1 (" ", 0, NULL
);
5138 /* Catch the case where a spec string contains something like
5139 '%{foo:%*}'. ie there is no * in the pattern on the left
5140 hand side of the :. */
5141 error ("spec failure: '%%*' has not been initialized by pattern match");
5144 /* Process a string found as the value of a spec given by name.
5145 This feature allows individual machine descriptions
5146 to add and use their own specs.
5147 %[...] modifies -D options the way %P does;
5148 %(...) uses the spec unmodified. */
5150 error ("warning: use of obsolete %%[ operator in specs");
5153 const char *name
= p
;
5154 struct spec_list
*sl
;
5157 /* The string after the S/P is the name of a spec that is to be
5159 while (*p
&& *p
!= ')' && *p
!= ']')
5162 /* See if it's in the list. */
5163 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5164 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5166 name
= *(sl
->ptr_spec
);
5168 notice ("Processing spec %c%s%c, which is '%s'\n",
5169 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5178 value
= do_spec_1 (name
, 0, NULL
);
5184 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5186 const char *y
= name
;
5189 /* Copy all of NAME into BUF, but put __ after
5190 every -D and at the end of each arg. */
5193 if (! strncmp (y
, "-D", 2))
5204 && (*y
== ' ' || *y
== '\t' || *y
== '='
5205 || *y
== '}' || *y
== 0))
5218 value
= do_spec_1 (buf
, 0, NULL
);
5224 /* Discard the closing paren or bracket. */
5231 error ("spec failure: unrecognized spec option '%c'", c
);
5237 /* Backslash: treat next character as ordinary. */
5242 /* Ordinary character: put it into the current argument. */
5243 obstack_1grow (&obstack
, c
);
5247 /* End of string. If we are processing a spec function, we need to
5248 end any pending argument. */
5249 if (processing_spec_function
&& arg_going
)
5251 obstack_1grow (&obstack
, 0);
5252 string
= obstack_finish (&obstack
);
5253 if (this_is_library_file
)
5254 string
= find_file (string
);
5255 store_arg (string
, delete_this_arg
, this_is_output_file
);
5256 if (this_is_output_file
)
5257 outfiles
[input_file_number
] = string
;
5264 /* Look up a spec function. */
5266 static const struct spec_function
*
5267 lookup_spec_function (name
)
5270 static const struct spec_function
* const spec_function_tables
[] =
5272 static_spec_functions
,
5273 lang_specific_spec_functions
,
5275 const struct spec_function
*sf
;
5278 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5280 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5281 if (strcmp (sf
->name
, name
) == 0)
5288 /* Evaluate a spec function. */
5291 eval_spec_function (func
, args
)
5292 const char *func
, *args
;
5294 const struct spec_function
*sf
;
5295 const char *funcval
;
5297 /* Saved spec processing context. */
5298 int save_argbuf_index
;
5299 int save_argbuf_length
;
5300 const char **save_argbuf
;
5303 int save_delete_this_arg
;
5304 int save_this_is_output_file
;
5305 int save_this_is_library_file
;
5306 int save_input_from_pipe
;
5307 const char *save_suffix_subst
;
5310 sf
= lookup_spec_function (func
);
5312 fatal ("unknown spec function `%s'", func
);
5314 /* Push the spec processing context. */
5315 save_argbuf_index
= argbuf_index
;
5316 save_argbuf_length
= argbuf_length
;
5317 save_argbuf
= argbuf
;
5319 save_arg_going
= arg_going
;
5320 save_delete_this_arg
= delete_this_arg
;
5321 save_this_is_output_file
= this_is_output_file
;
5322 save_this_is_library_file
= this_is_library_file
;
5323 save_input_from_pipe
= input_from_pipe
;
5324 save_suffix_subst
= suffix_subst
;
5326 /* Create a new spec processing context, and build the function
5330 if (do_spec_2 (args
) < 0)
5331 fatal ("error in args to spec function `%s'", func
);
5333 /* argbuf_index is an index for the next argument to be inserted, and
5334 so contains the count of the args already inserted. */
5336 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5338 /* Pop the spec processing context. */
5339 argbuf_index
= save_argbuf_index
;
5340 argbuf_length
= save_argbuf_length
;
5342 argbuf
= save_argbuf
;
5344 arg_going
= save_arg_going
;
5345 delete_this_arg
= save_delete_this_arg
;
5346 this_is_output_file
= save_this_is_output_file
;
5347 this_is_library_file
= save_this_is_library_file
;
5348 input_from_pipe
= save_input_from_pipe
;
5349 suffix_subst
= save_suffix_subst
;
5354 /* Handle a spec function call of the form:
5358 ARGS is processed as a spec in a separate context and split into an
5359 argument vector in the normal fashion. The function returns a string
5360 containing a spec which we then process in the caller's context, or
5361 NULL if no processing is required. */
5364 handle_spec_function (p
)
5368 const char *endp
, *funcval
;
5371 processing_spec_function
++;
5373 /* Get the function name. */
5374 for (endp
= p
; *endp
!= '\0'; endp
++)
5376 if (*endp
== '(') /* ) */
5378 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5379 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5380 fatal ("malformed spec function name");
5382 if (*endp
!= '(') /* ) */
5383 fatal ("no arguments for spec function");
5384 func
= save_string (p
, endp
- p
);
5387 /* Get the arguments. */
5388 for (count
= 0; *endp
!= '\0'; endp
++)
5397 else if (*endp
== '(') /* ) */
5402 fatal ("malformed spec function arguments");
5403 args
= save_string (p
, endp
- p
);
5406 /* p now points to just past the end of the spec function expression. */
5408 funcval
= eval_spec_function (func
, args
);
5409 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5415 processing_spec_function
--;
5420 /* Inline subroutine of handle_braces. Returns true if the current
5421 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5423 input_suffix_matches (atom
, end_atom
)
5425 const char *end_atom
;
5427 return (input_suffix
5428 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5429 && input_suffix
[end_atom
- atom
] == '\0');
5432 /* Inline subroutine of handle_braces. Returns true if a switch
5433 matching the atom bracketed by ATOM and END_ATOM appeared on the
5436 switch_matches (atom
, end_atom
, starred
)
5438 const char *end_atom
;
5442 int len
= end_atom
- atom
;
5443 int plen
= starred
? len
: -1;
5445 for (i
= 0; i
< n_switches
; i
++)
5446 if (!strncmp (switches
[i
].part1
, atom
, len
)
5447 && (starred
|| switches
[i
].part1
[len
] == '\0')
5448 && check_live_switch (i
, plen
))
5454 /* Inline subroutine of handle_braces. Mark all of the switches which
5455 match ATOM (extends to END_ATOM; STARRED indicates whether there
5456 was a star after the atom) for later processing. */
5458 mark_matching_switches (atom
, end_atom
, starred
)
5460 const char *end_atom
;
5464 int len
= end_atom
- atom
;
5465 int plen
= starred
? len
: -1;
5467 for (i
= 0; i
< n_switches
; i
++)
5468 if (!strncmp (switches
[i
].part1
, atom
, len
)
5469 && (starred
|| switches
[i
].part1
[len
] == '\0')
5470 && check_live_switch (i
, plen
))
5471 switches
[i
].ordering
= 1;
5474 /* Inline subroutine of handle_braces. Process all the currently
5475 marked switches through give_switch, and clear the marks. */
5477 process_marked_switches ()
5481 for (i
= 0; i
< n_switches
; i
++)
5482 if (switches
[i
].ordering
== 1)
5484 switches
[i
].ordering
= 0;
5489 /* Handle a %{ ... } construct. P points just inside the leading {.
5490 Returns a pointer one past the end of the brace block, or 0
5491 if we call do_spec_1 and that returns -1. */
5497 const char *atom
, *end_atom
;
5498 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5505 bool a_must_be_last
= false;
5506 bool ordered_set
= false;
5507 bool disjunct_set
= false;
5508 bool disj_matched
= false;
5509 bool disj_starred
= true;
5510 bool n_way_choice
= false;
5511 bool n_way_matched
= false;
5513 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5520 /* Scan one "atom" (S in the description above of %{}, possibly
5521 with !, ., or * modifiers). */
5522 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5526 p
++, a_is_negated
= true;
5530 p
++, a_is_suffix
= true;
5533 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5534 || *p
== ',' || *p
== '.' || *p
== '@')
5539 p
++, a_is_starred
= 1;
5542 if (*p
== '&' || *p
== '}')
5544 /* Substitute the switch(es) indicated by the current atom. */
5546 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5547 || atom
== end_atom
)
5550 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5553 process_marked_switches ();
5555 else if (*p
== '|' || *p
== ':')
5557 /* Substitute some text if the current atom appears as a switch
5559 disjunct_set
= true;
5563 if (atom
== end_atom
)
5565 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5566 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5569 /* An empty term may appear as the last choice of an
5570 N-way choice set; it means "otherwise". */
5571 a_must_be_last
= true;
5572 disj_matched
= !n_way_matched
;
5573 disj_starred
= false;
5577 if (a_is_suffix
&& a_is_starred
)
5581 disj_starred
= false;
5583 /* Don't bother testing this atom if we already have a
5585 if (!disj_matched
&& !n_way_matched
)
5588 a_matched
= input_suffix_matches (atom
, end_atom
);
5590 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5592 if (a_matched
!= a_is_negated
)
5594 disj_matched
= true;
5596 d_end_atom
= end_atom
;
5603 /* Found the body, that is, the text to substitute if the
5604 current disjunction matches. */
5605 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5606 disj_matched
&& !n_way_matched
);
5610 /* If we have an N-way choice, reset state for the next
5614 n_way_choice
= true;
5615 n_way_matched
|= disj_matched
;
5616 disj_matched
= false;
5617 disj_starred
= true;
5618 d_atom
= d_end_atom
= NULL
;
5625 while (*p
++ != '}');
5632 /* Subroutine of handle_braces. Scan and process a brace substitution body
5633 (X in the description of %{} syntax). P points one past the colon;
5634 ATOM and END_ATOM bracket the first atom which was found to be true
5635 (present) in the current disjunction; STARRED indicates whether all
5636 the atoms in the current disjunction were starred (for syntax validation);
5637 MATCHED indicates whether the disjunction matched or not, and therefore
5638 whether or not the body is to be processed through do_spec_1 or just
5639 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5643 process_brace_body (p
, atom
, end_atom
, starred
, matched
)
5646 const char *end_atom
;
5650 const char *body
, *end_body
;
5651 unsigned int nesting_level
;
5652 bool have_subst
= false;
5654 /* Locate the closing } or ;, honoring nested braces.
5655 Trim trailing whitespace. */
5664 if (!--nesting_level
)
5667 else if (*p
== ';' && nesting_level
== 1)
5669 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5671 else if (*p
== '\0')
5677 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5680 if (have_subst
&& !starred
)
5685 /* Copy the substitution body to permanent storage and execute it.
5686 If have_subst is false, this is a simple matter of running the
5687 body through do_spec_1... */
5688 char *string
= save_string (body
, end_body
- body
);
5691 if (do_spec_1 (string
, 0, NULL
) < 0)
5696 /* ... but if have_subst is true, we have to process the
5697 body once for each matching switch, with %* set to the
5698 variant part of the switch. */
5699 unsigned int hard_match_len
= end_atom
- atom
;
5702 for (i
= 0; i
< n_switches
; i
++)
5703 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5704 && check_live_switch (i
, hard_match_len
))
5706 if (do_spec_1 (string
, 0,
5707 &switches
[i
].part1
[hard_match_len
]) < 0)
5709 /* Pass any arguments this switch has. */
5711 suffix_subst
= NULL
;
5719 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5720 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5721 spec, or -1 if either exact match or %* is used.
5723 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5724 whose value does not begin with "no-" is obsoleted by the same value
5725 with the "no-", similarly for a switch with the "no-" prefix. */
5728 check_live_switch (switchnum
, prefix_length
)
5732 const char *name
= switches
[switchnum
].part1
;
5735 /* In the common case of {<at-most-one-letter>*}, a negating
5736 switch would always match, so ignore that case. We will just
5737 send the conflicting switches to the compiler phase. */
5738 if (prefix_length
>= 0 && prefix_length
<= 1)
5741 /* If we already processed this switch and determined if it was
5742 live or not, return our past determination. */
5743 if (switches
[switchnum
].live_cond
!= 0)
5744 return switches
[switchnum
].live_cond
> 0;
5746 /* Now search for duplicate in a manner that depends on the name. */
5750 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5751 if (switches
[i
].part1
[0] == 'O')
5753 switches
[switchnum
].validated
= 1;
5754 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5759 case 'W': case 'f': case 'm':
5760 if (! strncmp (name
+ 1, "no-", 3))
5762 /* We have Xno-YYY, search for XYYY. */
5763 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5764 if (switches
[i
].part1
[0] == name
[0]
5765 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5767 switches
[switchnum
].validated
= 1;
5768 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5774 /* We have XYYY, search for Xno-YYY. */
5775 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5776 if (switches
[i
].part1
[0] == name
[0]
5777 && switches
[i
].part1
[1] == 'n'
5778 && switches
[i
].part1
[2] == 'o'
5779 && switches
[i
].part1
[3] == '-'
5780 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5782 switches
[switchnum
].validated
= 1;
5783 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5790 /* Otherwise the switch is live. */
5791 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5795 /* Pass a switch to the current accumulating command
5796 in the same form that we received it.
5797 SWITCHNUM identifies the switch; it is an index into
5798 the vector of switches gcc received, which is `switches'.
5799 This cannot fail since it never finishes a command line.
5801 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5804 give_switch (switchnum
, omit_first_word
)
5806 int omit_first_word
;
5808 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5811 if (!omit_first_word
)
5813 do_spec_1 ("-", 0, NULL
);
5814 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5817 if (switches
[switchnum
].args
!= 0)
5820 for (p
= switches
[switchnum
].args
; *p
; p
++)
5822 const char *arg
= *p
;
5824 do_spec_1 (" ", 0, NULL
);
5827 unsigned length
= strlen (arg
);
5830 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5831 if (arg
[length
] == '.')
5833 ((char *)arg
)[length
] = 0;
5837 do_spec_1 (arg
, 1, NULL
);
5839 ((char *)arg
)[length
] = '.';
5840 do_spec_1 (suffix_subst
, 1, NULL
);
5843 do_spec_1 (arg
, 1, NULL
);
5847 do_spec_1 (" ", 0, NULL
);
5848 switches
[switchnum
].validated
= 1;
5851 /* Search for a file named NAME trying various prefixes including the
5852 user's -B prefix and some standard ones.
5853 Return the absolute file name found. If nothing is found, return NAME. */
5861 /* Try multilib_dir if it is defined. */
5862 if (multilib_os_dir
!= NULL
)
5864 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5866 /* If we don't find it in the multi library dir, then fall
5867 through and look for it in the normal places. */
5868 if (newname
!= NULL
)
5872 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5873 return newname
? newname
: name
;
5876 /* Determine whether a directory exists. If LINKER, return 0 for
5877 certain fixed names not needed by the linker. If not LINKER, it is
5878 only important to return 0 if the host machine has a small ARG_MAX
5882 is_directory (path1
, path2
, linker
)
5887 int len1
= strlen (path1
);
5888 int len2
= strlen (path2
);
5889 char *path
= (char *) alloca (3 + len1
+ len2
);
5893 #ifndef SMALL_ARG_MAX
5898 /* Construct the path from the two parts. Ensure the string ends with "/.".
5899 The resulting path will be a directory even if the given path is a
5901 memcpy (path
, path1
, len1
);
5902 memcpy (path
+ len1
, path2
, len2
);
5903 cp
= path
+ len1
+ len2
;
5904 if (!IS_DIR_SEPARATOR (cp
[-1]))
5905 *cp
++ = DIR_SEPARATOR
;
5909 /* Exclude directories that the linker is known to search. */
5912 && strcmp (path
, concat (dir_separator_str
, "lib",
5913 dir_separator_str
, ".", NULL
)) == 0)
5915 && strcmp (path
, concat (dir_separator_str
, "usr",
5916 dir_separator_str
, "lib",
5917 dir_separator_str
, ".", NULL
)) == 0)))
5920 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5923 /* Set up the various global variables to indicate that we're processing
5924 the input file named FILENAME. */
5927 set_input (filename
)
5928 const char *filename
;
5932 input_filename
= filename
;
5933 input_filename_length
= strlen (input_filename
);
5935 input_basename
= input_filename
;
5936 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5937 /* Skip drive name so 'x:foo' is handled properly. */
5938 if (input_basename
[1] == ':')
5939 input_basename
+= 2;
5941 for (p
= input_basename
; *p
; p
++)
5942 if (IS_DIR_SEPARATOR (*p
))
5943 input_basename
= p
+ 1;
5945 /* Find a suffix starting with the last period,
5946 and set basename_length to exclude that suffix. */
5947 basename_length
= strlen (input_basename
);
5948 suffixed_basename_length
= basename_length
;
5949 p
= input_basename
+ basename_length
;
5950 while (p
!= input_basename
&& *p
!= '.')
5952 if (*p
== '.' && p
!= input_basename
)
5954 basename_length
= p
- input_basename
;
5955 input_suffix
= p
+ 1;
5960 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5961 we will need to do a stat on the input_filename. The
5962 INPUT_STAT_SET signals that the stat is needed. */
5966 /* On fatal signals, delete all the temporary files. */
5969 fatal_error (signum
)
5972 signal (signum
, SIG_DFL
);
5973 delete_failure_queue ();
5974 delete_temp_files ();
5975 /* Get the same signal again, this time not handled,
5976 so its normal effect occurs. */
5977 kill (getpid (), signum
);
5980 extern int main
PARAMS ((int, const char *const *));
5985 const char *const *argv
;
5989 int linker_was_run
= 0;
5990 int num_linker_inputs
= 0;
5991 char *explicit_link_files
;
5994 struct user_specs
*uptr
;
5996 p
= argv
[0] + strlen (argv
[0]);
5997 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6001 xmalloc_set_program_name (programname
);
6003 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6004 /* Perform host dependent initialization when needed. */
6005 GCC_DRIVER_HOST_INITIALIZATION
;
6008 gcc_init_libintl ();
6010 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6011 signal (SIGINT
, fatal_error
);
6013 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6014 signal (SIGHUP
, fatal_error
);
6016 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6017 signal (SIGTERM
, fatal_error
);
6019 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6020 signal (SIGPIPE
, fatal_error
);
6023 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6024 receive the signal. A different setting is inheritable */
6025 signal (SIGCHLD
, SIG_DFL
);
6028 /* Allocate the argument vector. */
6031 obstack_init (&obstack
);
6033 /* Build multilib_select, et. al from the separate lines that make up each
6034 multilib selection. */
6036 const char *const *q
= multilib_raw
;
6039 obstack_init (&multilib_obstack
);
6040 while ((p
= *q
++) != (char *) 0)
6041 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6043 obstack_1grow (&multilib_obstack
, 0);
6044 multilib_select
= obstack_finish (&multilib_obstack
);
6046 q
= multilib_matches_raw
;
6047 while ((p
= *q
++) != (char *) 0)
6048 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6050 obstack_1grow (&multilib_obstack
, 0);
6051 multilib_matches
= obstack_finish (&multilib_obstack
);
6053 q
= multilib_exclusions_raw
;
6054 while ((p
= *q
++) != (char *) 0)
6055 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6057 obstack_1grow (&multilib_obstack
, 0);
6058 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6061 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6064 obstack_1grow (&multilib_obstack
, ' ');
6065 obstack_grow (&multilib_obstack
,
6066 multilib_defaults_raw
[i
],
6067 strlen (multilib_defaults_raw
[i
]));
6071 obstack_1grow (&multilib_obstack
, 0);
6072 multilib_defaults
= obstack_finish (&multilib_obstack
);
6075 /* Set up to remember the pathname of gcc and any options
6076 needed for collect. We use argv[0] instead of programname because
6077 we need the complete pathname. */
6078 obstack_init (&collect_obstack
);
6079 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6080 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6081 putenv (obstack_finish (&collect_obstack
));
6083 #ifdef INIT_ENVIRONMENT
6084 /* Set up any other necessary machine specific environment variables. */
6085 putenv (INIT_ENVIRONMENT
);
6088 /* Make a table of what switches there are (switches, n_switches).
6089 Make a table of specified input files (infiles, n_infiles).
6090 Decode switches that are handled locally. */
6092 process_command (argc
, argv
);
6094 /* Initialize the vector of specs to just the default.
6095 This means one element containing 0s, as a terminator. */
6097 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
6098 memcpy ((char *) compilers
, (char *) default_compilers
,
6099 sizeof default_compilers
);
6100 n_compilers
= n_default_compilers
;
6102 /* Read specs from a file if there is one. */
6104 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6105 spec_version
, dir_separator_str
, NULL
);
6106 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6108 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6109 /* Read the specs file unless it is a default one. */
6110 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6111 read_specs (specs_file
, TRUE
);
6115 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6116 for any override of as, ld and libraries. */
6117 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6118 + strlen (just_machine_suffix
)
6119 + sizeof ("specs"));
6121 strcpy (specs_file
, standard_exec_prefix
);
6122 strcat (specs_file
, just_machine_suffix
);
6123 strcat (specs_file
, "specs");
6124 if (access (specs_file
, R_OK
) == 0)
6125 read_specs (specs_file
, TRUE
);
6127 /* Process any configure-time defaults specified for the command line
6128 options, via OPTION_DEFAULT_SPECS. */
6129 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6130 do_option_spec (option_default_specs
[i
].name
,
6131 option_default_specs
[i
].spec
);
6133 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6134 of the command line. */
6136 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6137 do_self_spec (driver_self_specs
[i
]);
6139 /* If not cross-compiling, look for executables in the standard
6141 if (*cross_compile
== '0')
6143 if (*md_exec_prefix
)
6145 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6146 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6150 /* Process sysroot_suffix_spec. */
6151 if (*sysroot_suffix_spec
!= 0
6152 && do_spec_2 (sysroot_suffix_spec
) == 0)
6154 if (argbuf_index
> 1)
6155 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6156 else if (argbuf_index
== 1)
6157 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6160 /* Process sysroot_hdrs_suffix_spec. */
6161 if (*sysroot_hdrs_suffix_spec
!= 0
6162 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6164 if (argbuf_index
> 1)
6165 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6166 else if (argbuf_index
== 1)
6167 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6170 /* Look for startfiles in the standard places. */
6171 if (*startfile_prefix_spec
!= 0
6172 && do_spec_2 (startfile_prefix_spec
) == 0
6173 && do_spec_1 (" ", 0, NULL
) == 0)
6176 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6177 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6178 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6180 /* We should eventually get rid of all these and stick to
6181 startfile_prefix_spec exclusively. */
6182 else if (*cross_compile
== '0' || target_system_root
)
6184 if (*md_exec_prefix
)
6185 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6186 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6188 if (*md_startfile_prefix
)
6189 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6190 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6192 if (*md_startfile_prefix_1
)
6193 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6194 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6196 /* If standard_startfile_prefix is relative, base it on
6197 standard_exec_prefix. This lets us move the installed tree
6198 as a unit. If GCC_EXEC_PREFIX is defined, base
6199 standard_startfile_prefix on that as well. */
6200 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6201 add_sysrooted_prefix (&startfile_prefixes
,
6202 standard_startfile_prefix
, "BINUTILS",
6203 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6206 if (gcc_exec_prefix
)
6207 add_prefix (&startfile_prefixes
,
6208 concat (gcc_exec_prefix
, machine_suffix
,
6209 standard_startfile_prefix
, NULL
),
6210 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6211 add_prefix (&startfile_prefixes
,
6212 concat (standard_exec_prefix
,
6214 standard_startfile_prefix
, NULL
),
6215 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6218 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6219 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6220 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6221 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6222 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6223 add_prefix (&startfile_prefixes
, "./", NULL
,
6224 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6228 /* Process any user specified specs in the order given on the command
6230 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6232 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6234 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6237 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6238 if (gcc_exec_prefix
)
6239 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6240 spec_version
, dir_separator_str
, NULL
);
6242 /* Now we have the specs.
6243 Set the `valid' bits for switches that match anything in any spec. */
6245 validate_all_switches ();
6247 /* Now that we have the switches and the specs, set
6248 the subdirectory based on the options. */
6249 set_multilib_dir ();
6251 /* Warn about any switches that no pass was interested in. */
6253 for (i
= 0; (int) i
< n_switches
; i
++)
6254 if (! switches
[i
].validated
)
6255 error ("unrecognized option `-%s'", switches
[i
].part1
);
6257 /* Obey some of the options. */
6259 if (print_search_dirs
)
6261 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6262 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6263 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6267 if (print_file_name
)
6269 printf ("%s\n", find_file (print_file_name
));
6273 if (print_prog_name
)
6275 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6276 printf ("%s\n", (newname
? newname
: print_prog_name
));
6280 if (print_multi_lib
)
6282 print_multilib_info ();
6286 if (print_multi_directory
)
6288 if (multilib_dir
== NULL
)
6291 printf ("%s\n", multilib_dir
);
6295 if (print_multi_os_directory
)
6297 if (multilib_os_dir
== NULL
)
6300 printf ("%s\n", multilib_os_dir
);
6304 if (target_help_flag
)
6306 /* Print if any target specific options. */
6308 /* We do not exit here. Instead we have created a fake input file
6309 called 'target-dummy' which needs to be compiled, and we pass this
6310 on to the various sub-processes, along with the --target-help
6314 if (print_help_list
)
6320 printf (_("\nFor bug reporting instructions, please see:\n"));
6321 printf ("%s.\n", bug_report_url
);
6326 /* We do not exit here. Instead we have created a fake input file
6327 called 'help-dummy' which needs to be compiled, and we pass this
6328 on the various sub-processes, along with the --help switch. */
6336 notice ("Configured with: %s\n", configuration_arguments
);
6338 #ifdef THREAD_MODEL_SPEC
6339 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6340 but there's no point in doing all this processing just to get
6341 thread_model back. */
6342 obstack_init (&obstack
);
6343 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6344 obstack_1grow (&obstack
, '\0');
6345 thrmod
= obstack_finish (&obstack
);
6347 thrmod
= thread_model
;
6350 notice ("Thread model: %s\n", thrmod
);
6352 /* compiler_version is truncated at the first space when initialized
6353 from version string, so truncate version_string at the first space
6354 before comparing. */
6355 for (n
= 0; version_string
[n
]; n
++)
6356 if (version_string
[n
] == ' ')
6359 if (! strncmp (version_string
, compiler_version
, n
)
6360 && compiler_version
[n
] == 0)
6361 notice ("gcc version %s\n", version_string
);
6363 notice ("gcc driver version %s executing gcc version %s\n",
6364 version_string
, compiler_version
);
6370 if (n_infiles
== added_libraries
)
6371 fatal ("no input files");
6373 /* Make a place to record the compiler output file names
6374 that correspond to the input files. */
6377 i
+= lang_specific_extra_outfiles
;
6378 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6380 /* Record which files were specified explicitly as link input. */
6382 explicit_link_files
= xcalloc (1, n_infiles
);
6384 for (i
= 0; (int) i
< n_infiles
; i
++)
6386 int this_file_error
= 0;
6388 /* Tell do_spec what to substitute for %i. */
6390 input_file_number
= i
;
6391 set_input (infiles
[i
].name
);
6393 /* Use the same thing in %o, unless cp->spec says otherwise. */
6395 outfiles
[i
] = input_filename
;
6397 /* Figure out which compiler from the file's suffix. */
6400 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6401 infiles
[i
].language
);
6403 if (input_file_compiler
)
6405 /* Ok, we found an applicable compiler. Run its spec. */
6407 if (input_file_compiler
->spec
[0] == '#')
6409 error ("%s: %s compiler not installed on this system",
6410 input_filename
, &input_file_compiler
->spec
[1]);
6411 this_file_error
= 1;
6415 value
= do_spec (input_file_compiler
->spec
);
6417 this_file_error
= 1;
6421 /* If this file's name does not contain a recognized suffix,
6422 record it as explicit linker input. */
6425 explicit_link_files
[i
] = 1;
6427 /* Clear the delete-on-failure queue, deleting the files in it
6428 if this compilation failed. */
6430 if (this_file_error
)
6432 delete_failure_queue ();
6435 /* If this compilation succeeded, don't delete those files later. */
6436 clear_failure_queue ();
6439 /* Reset the output file name to the first input file name, for use
6440 with %b in LINK_SPEC on a target that prefers not to emit a.out
6443 set_input (infiles
[0].name
);
6445 if (error_count
== 0)
6447 /* Make sure INPUT_FILE_NUMBER points to first available open
6449 input_file_number
= n_infiles
;
6450 if (lang_specific_pre_link ())
6454 /* Determine if there are any linker input files. */
6455 num_linker_inputs
= 0;
6456 for (i
= 0; (int) i
< n_infiles
; i
++)
6457 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6458 num_linker_inputs
++;
6460 /* Run ld to link all the compiler output files. */
6462 if (num_linker_inputs
> 0 && error_count
== 0)
6464 int tmp
= execution_count
;
6466 /* We'll use ld if we can't find collect2. */
6467 if (! strcmp (linker_name_spec
, "collect2"))
6469 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6471 linker_name_spec
= "ld";
6473 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6475 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6476 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6478 value
= do_spec (link_command_spec
);
6481 linker_was_run
= (tmp
!= execution_count
);
6484 /* If options said don't run linker,
6485 complain about input files to be given to the linker. */
6487 if (! linker_was_run
&& error_count
== 0)
6488 for (i
= 0; (int) i
< n_infiles
; i
++)
6489 if (explicit_link_files
[i
])
6490 error ("%s: linker input file unused because linking not done",
6493 /* Delete some or all of the temporary files we made. */
6496 delete_failure_queue ();
6497 delete_temp_files ();
6499 if (print_help_list
)
6501 printf (("\nFor bug reporting instructions, please see:\n"));
6502 printf ("%s\n", bug_report_url
);
6505 return (signal_count
!= 0 ? 2
6506 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6510 /* Find the proper compilation spec for the file name NAME,
6511 whose length is LENGTH. LANGUAGE is the specified language,
6512 or 0 if this file is to be passed to the linker. */
6514 static struct compiler
*
6515 lookup_compiler (name
, length
, language
)
6518 const char *language
;
6520 struct compiler
*cp
;
6522 /* If this was specified by the user to be a linker input, indicate that. */
6523 if (language
!= 0 && language
[0] == '*')
6526 /* Otherwise, look for the language, if one is spec'd. */
6529 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6530 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6533 error ("language %s not recognized", language
);
6537 /* Look for a suffix. */
6538 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6540 if (/* The suffix `-' matches only the file name `-'. */
6541 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6542 || (strlen (cp
->suffix
) < length
6543 /* See if the suffix matches the end of NAME. */
6544 && !strcmp (cp
->suffix
,
6545 name
+ length
- strlen (cp
->suffix
))
6550 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6551 /* look again, but case-insensitively this time. */
6553 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6555 if (/* The suffix `-' matches only the file name `-'. */
6556 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6557 || (strlen (cp
->suffix
) < length
6558 /* See if the suffix matches the end of NAME. */
6559 && ((!strcmp (cp
->suffix
,
6560 name
+ length
- strlen (cp
->suffix
))
6561 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6562 && !strcasecmp (cp
->suffix
,
6563 name
+ length
- strlen (cp
->suffix
)))
6569 if (cp
>= compilers
)
6571 if (cp
->spec
[0] != '@')
6572 /* A non-alias entry: return it. */
6575 /* An alias entry maps a suffix to a language.
6576 Search for the language; pass 0 for NAME and LENGTH
6577 to avoid infinite recursion if language not found. */
6578 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6584 save_string (s
, len
)
6588 char *result
= xmalloc (len
+ 1);
6590 memcpy (result
, s
, len
);
6596 pfatal_with_name (name
)
6599 perror_with_name (name
);
6600 delete_temp_files ();
6605 perror_with_name (name
)
6608 error ("%s: %s", name
, xstrerror (errno
));
6612 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6613 const char *errmsg_fmt
;
6614 const char *errmsg_arg
;
6618 int save_errno
= errno
;
6620 /* Space for trailing '\0' is in %s. */
6621 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6622 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6628 pfatal_with_name (errmsg_fmt
);
6631 /* Output an error message and exit. */
6636 fatal ("internal gcc abort");
6639 /* Output an error message and exit. */
6642 fatal (const char *msgid
, ...)
6646 va_start (ap
, msgid
);
6648 fprintf (stderr
, "%s: ", programname
);
6649 vfprintf (stderr
, _(msgid
), ap
);
6651 fprintf (stderr
, "\n");
6652 delete_temp_files ();
6657 error (const char *msgid
, ...)
6661 va_start (ap
, msgid
);
6662 fprintf (stderr
, "%s: ", programname
);
6663 vfprintf (stderr
, _(msgid
), ap
);
6666 fprintf (stderr
, "\n");
6670 notice (const char *msgid
, ...)
6674 va_start (ap
, msgid
);
6675 vfprintf (stderr
, _(msgid
), ap
);
6680 validate_switches_from_spec (spec
)
6683 const char *p
= spec
;
6686 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6687 /* We have a switch spec. */
6688 p
= validate_switches (p
+ 1);
6692 validate_all_switches ()
6694 struct compiler
*comp
;
6695 struct spec_list
*spec
;
6697 for (comp
= compilers
; comp
->spec
; comp
++)
6698 validate_switches_from_spec (comp
->spec
);
6700 /* Look through the linked list of specs read from the specs file. */
6701 for (spec
= specs
; spec
; spec
= spec
->next
)
6702 validate_switches_from_spec (*spec
->ptr_spec
);
6704 validate_switches_from_spec (link_command_spec
);
6707 /* Look at the switch-name that comes after START
6708 and mark as valid all supplied switches that match it. */
6711 validate_switches (start
)
6714 const char *p
= start
;
6718 bool suffix
= false;
6719 bool starred
= false;
6721 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6734 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6735 || *p
== ',' || *p
== '.' || *p
== '@')
6740 starred
= true, p
++;
6746 /* Mark all matching switches as valid. */
6747 for (i
= 0; i
< n_switches
; i
++)
6748 if (!strncmp (switches
[i
].part1
, atom
, len
)
6749 && (starred
|| switches
[i
].part1
[len
] == 0))
6750 switches
[i
].validated
= 1;
6754 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6757 if (*p
&& p
[-1] == ':')
6759 while (*p
&& *p
!= ';' && *p
!= '}')
6764 if (*p
== '{' || *p
== '<')
6765 p
= validate_switches (p
+1);
6766 else if (p
[0] == 'W' && p
[1] == '{')
6767 p
= validate_switches (p
+2);
6774 if (*p
&& p
[-1] == ';')
6788 static struct mdswitchstr
*mdswitches
;
6789 static int n_mdswitches
;
6791 /* Check whether a particular argument was used. The first time we
6792 canonicalize the switches to keep only the ones we care about. */
6802 const char *replace
;
6807 static struct mswitchstr
*mswitches
;
6808 static int n_mswitches
;
6813 struct mswitchstr
*matches
;
6817 /* Break multilib_matches into the component strings of string
6818 and replacement string. */
6819 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6824 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6826 q
= multilib_matches
;
6836 matches
[i
].len
= q
- matches
[i
].str
;
6838 matches
[i
].replace
= ++q
;
6839 while (*q
!= ';' && *q
!= '\0')
6845 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6851 /* Now build a list of the replacement string for switches that we care
6852 about. Make sure we allocate at least one entry. This prevents
6853 xmalloc from calling fatal, and prevents us from re-executing this
6856 = (struct mswitchstr
*)
6857 xmalloc (sizeof (struct mswitchstr
)
6858 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6859 for (i
= 0; i
< n_switches
; i
++)
6861 int xlen
= strlen (switches
[i
].part1
);
6862 for (j
= 0; j
< cnt
; j
++)
6863 if (xlen
== matches
[j
].len
6864 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6866 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6867 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6868 mswitches
[n_mswitches
].replace
= (char *) 0;
6869 mswitches
[n_mswitches
].rep_len
= 0;
6875 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6876 on the command line nor any options mutually incompatible with
6878 for (i
= 0; i
< n_mdswitches
; i
++)
6882 for (q
= multilib_options
; *q
!= '\0'; q
++)
6888 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6889 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6891 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6898 if (*q
!= ' ' && *q
!= '\0')
6900 while (*r
!= ' ' && *r
!= '\0')
6903 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6906 if (used_arg (r
, q
- r
))
6911 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6912 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6913 mswitches
[n_mswitches
].replace
= (char *) 0;
6914 mswitches
[n_mswitches
].rep_len
= 0;
6927 for (i
= 0; i
< n_mswitches
; i
++)
6928 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6935 default_arg (p
, len
)
6941 for (i
= 0; i
< n_mdswitches
; i
++)
6942 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
6948 /* Work out the subdirectory to use based on the options. The format of
6949 multilib_select is a list of elements. Each element is a subdirectory
6950 name followed by a list of options followed by a semicolon. The format
6951 of multilib_exclusions is the same, but without the preceding
6952 directory. First gcc will check the exclusions, if none of the options
6953 beginning with an exclamation point are present, and all of the other
6954 options are present, then we will ignore this completely. Passing
6955 that, gcc will consider each multilib_select in turn using the same
6956 rules for matching the options. If a match is found, that subdirectory
6963 unsigned int this_path_len
;
6964 const char *this_path
, *this_arg
;
6965 const char *start
, *end
;
6967 int ok
, ndfltok
, first
;
6970 start
= multilib_defaults
;
6971 while (*start
== ' ' || *start
== '\t')
6973 while (*start
!= '\0')
6976 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
6978 while (*start
== ' ' || *start
== '\t')
6987 = (struct mdswitchstr
*) xmalloc (sizeof (struct mdswitchstr
)
6989 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6991 while (*start
== ' ' || *start
== '\t')
6997 for (end
= start
+ 1;
6998 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7001 obstack_grow (&multilib_obstack
, start
, end
- start
);
7002 obstack_1grow (&multilib_obstack
, 0);
7003 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7004 mdswitches
[i
++].len
= end
- start
;
7011 p
= multilib_exclusions
;
7014 /* Ignore newlines. */
7021 /* Check the arguments. */
7035 while (*p
!= ' ' && *p
!= ';')
7042 if (*this_arg
!= '!')
7050 ok
= used_arg (this_arg
, p
- this_arg
);
7065 p
= multilib_select
;
7068 /* Ignore newlines. */
7075 /* Get the initial path. */
7083 this_path_len
= p
- this_path
;
7085 /* Check the arguments. */
7101 while (*p
!= ' ' && *p
!= ';')
7108 if (*this_arg
!= '!')
7116 /* If this is a default argument, we can just ignore it.
7117 This is true even if this_arg begins with '!'. Beginning
7118 with '!' does not mean that this argument is necessarily
7119 inappropriate for this library: it merely means that
7120 there is a more specific library which uses this
7121 argument. If this argument is a default, we need not
7122 consider that more specific library. */
7123 ok
= used_arg (this_arg
, p
- this_arg
);
7130 if (default_arg (this_arg
, p
- this_arg
))
7139 if (this_path_len
!= 1
7140 || this_path
[0] != '.')
7142 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7145 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7146 new_multilib_dir
[this_path_len
] = '\0';
7147 q
= strchr (new_multilib_dir
, ':');
7150 multilib_dir
= new_multilib_dir
;
7157 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7159 while (q
< end
&& *q
!= ':')
7163 char *new_multilib_os_dir
= xmalloc (end
- q
);
7164 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7165 new_multilib_os_dir
[end
- q
- 1] = '\0';
7166 multilib_os_dir
= new_multilib_os_dir
;
7174 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7175 && strcmp (multilib_os_dir
, ".") == 0)
7177 free ((char *) multilib_os_dir
);
7178 multilib_os_dir
= NULL
;
7180 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7181 multilib_os_dir
= multilib_dir
;
7184 /* Print out the multiple library subdirectory selection
7185 information. This prints out a series of lines. Each line looks
7186 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7187 required. Only the desired options are printed out, the negative
7188 matches. The options are print without a leading dash. There are
7189 no spaces to make it easy to use the information in the shell.
7190 Each subdirectory is printed only once. This assumes the ordering
7191 generated by the genmultilib script. Also, we leave out ones that match
7195 print_multilib_info ()
7197 const char *p
= multilib_select
;
7198 const char *last_path
= 0, *this_path
;
7200 unsigned int last_path_len
= 0;
7205 /* Ignore newlines. */
7212 /* Get the initial path. */
7221 /* When --disable-multilib was used but target defines
7222 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7223 to find multilib_os_dir, so skip them from output. */
7224 if (this_path
[0] == '.' && this_path
[1] == ':')
7227 /* Check for matches with the multilib_exclusions. We don't bother
7228 with the '!' in either list. If any of the exclusion rules match
7229 all of its options with the select rule, we skip it. */
7231 const char *e
= multilib_exclusions
;
7232 const char *this_arg
;
7237 /* Ignore newlines. */
7244 /* Check the arguments. */
7261 while (*e
!= ' ' && *e
!= ';')
7272 int len
= e
- this_arg
;
7279 while (*q
!= ' ' && *q
!= ';')
7286 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7287 default_arg (this_arg
, e
- this_arg
))
7317 /* If this is a duplicate, skip it. */
7318 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7319 && ! strncmp (last_path
, this_path
, last_path_len
));
7321 last_path
= this_path
;
7322 last_path_len
= p
- this_path
;
7325 /* If this directory requires any default arguments, we can skip
7326 it. We will already have printed a directory identical to
7327 this one which does not require that default argument. */
7345 while (*q
!= ' ' && *q
!= ';')
7353 && default_arg (arg
, q
- arg
))
7368 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7387 use_arg
= *p
!= '!';
7392 while (*p
!= ' ' && *p
!= ';')
7407 /* If there are extra options, print them now. */
7408 if (multilib_extra
&& *multilib_extra
)
7410 int print_at
= TRUE
;
7413 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7434 /* if-exists built-in spec function.
7436 Checks to see if the file specified by the absolute pathname in
7437 ARGS exists. Returns that pathname if found.
7439 The usual use for this function is to check for a library file
7440 (whose name has been expanded with %s). */
7443 if_exists_spec_function (argc
, argv
)
7447 /* Must have only one argument. */
7448 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7454 /* if-exists-else built-in spec function.
7456 This is like if-exists, but takes an additional argument which
7457 is returned if the first argument does not exist. */
7460 if_exists_else_spec_function (argc
, argv
)
7464 /* Must have exactly two arguments. */
7468 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))