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, 2004 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"
76 #include "multilib.h" /* before tm.h */
79 #if ! defined( SIGCHLD ) && defined( SIGCLD )
80 # define SIGCHLD SIGCLD
88 #ifdef HAVE_SYS_RESOURCE_H
89 #include <sys/resource.h>
91 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
92 extern int getrusage (int, struct rusage
*);
95 /* By default there is no special suffix for target executables. */
96 /* FIXME: when autoconf is fixed, remove the host check - dj */
97 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
98 #define HAVE_TARGET_EXECUTABLE_SUFFIX
101 /* By default there is no special suffix for host executables. */
102 #ifdef HOST_EXECUTABLE_SUFFIX
103 #define HAVE_HOST_EXECUTABLE_SUFFIX
105 #define HOST_EXECUTABLE_SUFFIX ""
108 /* By default, the suffix for target object files is ".o". */
109 #ifdef TARGET_OBJECT_SUFFIX
110 #define HAVE_TARGET_OBJECT_SUFFIX
112 #define TARGET_OBJECT_SUFFIX ".o"
115 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
117 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
118 #ifndef LIBRARY_PATH_ENV
119 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
123 #define kill(p,s) raise(s)
126 /* If a stage of compilation returns an exit status >= 1,
127 compilation of that file ceases. */
129 #define MIN_FATAL_STATUS 1
131 /* Flag set by cppspec.c to 1. */
134 /* Flag saying to pass the greatest exit code returned by a sub-process
135 to the calling program. */
136 static int pass_exit_codes
;
138 /* Definition of string containing the arguments given to configure. */
139 #include "configargs.h"
141 /* Flag saying to print the directories gcc will search through looking for
142 programs, libraries, etc. */
144 static int print_search_dirs
;
146 /* Flag saying to print the full filename of this file
147 as found through our usual search mechanism. */
149 static const char *print_file_name
= NULL
;
151 /* As print_file_name, but search for executable file. */
153 static const char *print_prog_name
= NULL
;
155 /* Flag saying to print the relative path we'd use to
156 find libgcc.a given the current compiler flags. */
158 static int print_multi_directory
;
160 /* Flag saying to print the relative path we'd use to
161 find OS libraries given the current compiler flags. */
163 static int print_multi_os_directory
;
165 /* Flag saying to print the list of subdirectories and
166 compiler flags used to select them in a standard form. */
168 static int print_multi_lib
;
170 /* Flag saying to print the command line options understood by gcc and its
173 static int print_help_list
;
175 /* Flag indicating whether we should print the command and arguments */
177 static int verbose_flag
;
179 /* Flag indicating whether we should ONLY print the command and
180 arguments (like verbose_flag) without executing the command.
181 Displayed arguments are quoted so that the generated command
182 line is suitable for execution. This is intended for use in
183 shell scripts to capture the driver-generated command line. */
184 static int verbose_only_flag
;
186 /* Flag indicating to print target specific command line options. */
188 static int target_help_flag
;
190 /* Flag indicating whether we should report subprocess execution times
191 (if this is supported by the system - see pexecute.c). */
193 static int report_times
;
195 /* Nonzero means place this string before uses of /, so that include
196 and library files can be found in an alternate location. */
198 #ifdef TARGET_SYSTEM_ROOT
199 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
201 static const char *target_system_root
= 0;
204 /* Nonzero means pass the updated target_system_root to the compiler. */
206 static int target_system_root_changed
;
208 /* Nonzero means append this string to target_system_root. */
210 static const char *target_sysroot_suffix
= 0;
212 /* Nonzero means append this string to target_system_root for headers. */
214 static const char *target_sysroot_hdrs_suffix
= 0;
216 /* Nonzero means write "temp" files in source directory
217 and use the source file's name in them, and don't delete them. */
219 static int save_temps_flag
;
221 /* Nonzero means pass multiple source files to the compiler at one time. */
223 static int combine_flag
= 0;
225 /* Nonzero means use pipes to communicate between subprocesses.
226 Overridden by either of the above two flags. */
228 static int use_pipes
;
230 /* The compiler version. */
232 static const char *compiler_version
;
234 /* The target version specified with -V */
236 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
238 /* The target machine specified with -b. */
240 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
242 /* Nonzero if cross-compiling.
243 When -b is used, the value comes from the `specs' file. */
246 static const char *cross_compile
= "1";
248 static const char *cross_compile
= "0";
251 #ifdef MODIFY_TARGET_NAME
253 /* Information on how to alter the target name based on a command-line
254 switch. The only case we support now is simply appending or deleting a
255 string to or from the end of the first part of the configuration name. */
257 static const struct modify_target
259 const char *const sw
;
260 const enum add_del
{ADD
, DELETE
} add_del
;
261 const char *const str
;
263 modify_target
[] = MODIFY_TARGET_NAME
;
266 /* The number of errors that have occurred; the link phase will not be
267 run if this is nonzero. */
268 static int error_count
= 0;
270 /* Greatest exit code of sub-processes that has been encountered up to
272 static int greatest_status
= 1;
274 /* This is the obstack which we use to allocate many strings. */
276 static struct obstack obstack
;
278 /* This is the obstack to build an environment variable to pass to
279 collect2 that describes all of the relevant switches of what to
280 pass the compiler in building the list of pointers to constructors
283 static struct obstack collect_obstack
;
285 /* These structs are used to collect resource usage information for
287 #ifdef HAVE_GETRUSAGE
288 static struct rusage rus
, prus
;
291 /* Forward declaration for prototypes. */
295 static void init_spec (void);
296 static void store_arg (const char *, int, int);
297 static char *load_specs (const char *);
298 static void read_specs (const char *, int);
299 static void set_spec (const char *, const char *);
300 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
301 static char *build_search_list (struct path_prefix
*, const char *, int);
302 static void putenv_from_prefixes (struct path_prefix
*, const char *);
303 static int access_check (const char *, int);
304 static char *find_a_file (struct path_prefix
*, const char *, int, int);
305 static void add_prefix (struct path_prefix
*, const char *, const char *,
307 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
308 const char *, int, int, int);
309 static void translate_options (int *, const char *const **);
310 static char *skip_whitespace (char *);
311 static void delete_if_ordinary (const char *);
312 static void delete_temp_files (void);
313 static void delete_failure_queue (void);
314 static void clear_failure_queue (void);
315 static int check_live_switch (int, int);
316 static const char *handle_braces (const char *);
317 static inline bool input_suffix_matches (const char *, const char *);
318 static inline bool switch_matches (const char *, const char *, int);
319 static inline void mark_matching_switches (const char *, const char *, int);
320 static inline void process_marked_switches (void);
321 static const char *process_brace_body (const char *, const char *, const char *, int, int);
322 static const struct spec_function
*lookup_spec_function (const char *);
323 static const char *eval_spec_function (const char *, const char *);
324 static const char *handle_spec_function (const char *);
325 static char *save_string (const char *, int);
326 static void set_collect_gcc_options (void);
327 static void do_spec_path (struct prefix_list
*, const char *, int, int, int, const char *, const char *);
328 static int do_spec_1 (const char *, int, const char *);
329 static int do_spec_2 (const char *);
330 static void do_option_spec (const char *, const char *);
331 static void do_self_spec (const char *);
332 static const char *find_file (const char *);
333 static int is_directory (const char *, const char *, int);
334 static const char *validate_switches (const char *);
335 static void validate_all_switches (void);
336 static inline void validate_switches_from_spec (const char *);
337 static void give_switch (int, int);
338 static int used_arg (const char *, int);
339 static int default_arg (const char *, int);
340 static void set_multilib_dir (void);
341 static void print_multilib_info (void);
342 static void perror_with_name (const char *);
343 static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN
;
344 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
345 static void display_help (void);
346 static void add_preprocessor_option (const char *, int);
347 static void add_assembler_option (const char *, int);
348 static void add_linker_option (const char *, int);
349 static void process_command (int, const char **);
350 static int execute (void);
351 static void alloc_args (void);
352 static void clear_args (void);
353 static void fatal_error (int);
354 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
355 static void init_gcc_specs (struct obstack
*, const char *, const char *,
358 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
359 static const char *convert_filename (const char *, int, int);
362 static const char *if_exists_spec_function (int, const char **);
363 static const char *if_exists_else_spec_function (int, const char **);
365 /* The Specs Language
367 Specs are strings containing lines, each of which (if not blank)
368 is made up of a program name, and arguments separated by spaces.
369 The program name must be exact and start from root, since no path
370 is searched and it is unreliable to depend on the current working directory.
371 Redirection of input or output is not supported; the subprograms must
372 accept filenames saying what files to read and write.
374 In addition, the specs can contain %-sequences to substitute variable text
375 or for conditional text. Here is a table of all defined %-sequences.
376 Note that spaces are not generated automatically around the results of
377 expanding these sequences; therefore, you can concatenate them together
378 or with constant text in a single argument.
380 %% substitute one % into the program name or argument.
381 %i substitute the name of the input file being processed.
382 %b substitute the basename of the input file being processed.
383 This is the substring up to (and not including) the last period
384 and not including the directory.
385 %B same as %b, but include the file suffix (text after the last period).
387 substitute a file name that has suffix SUFFIX and is chosen
388 once per compilation, and mark the argument a la %d. To reduce
389 exposure to denial-of-service attacks, the file name is now
390 chosen in a way that is hard to predict even when previously
391 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
392 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
393 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
394 had been pre-processed. Previously, %g was simply substituted
395 with a file name chosen once per compilation, without regard
396 to any appended suffix (which was therefore treated just like
397 ordinary text), making such attacks more likely to succeed.
399 like %g, but if -pipe is in effect, expands simply to "-".
401 like %g, but if -pipe is in effect, expands to nothing. (We have both
402 %| and %m to accommodate differences between system assemblers; see
403 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
405 like %g, but generates a new temporary file name even if %uSUFFIX
408 substitutes the last file name generated with %uSUFFIX, generating a
409 new one if there is no such last file name. In the absence of any
410 %uSUFFIX, this is just like %gSUFFIX, except they don't share
411 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
412 would involve the generation of two distinct file names, one
413 for each `%g.s' and another for each `%U.s'. Previously, %U was
414 simply substituted with a file name chosen for the previous %u,
415 without regard to any appended suffix.
417 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
418 writable, and if save-temps is off; otherwise, substitute the name
419 of a temporary file, just like %u. This temporary file is not
420 meant for communication between processes, but rather as a junk
423 substitutes .SUFFIX for the suffixes of a matched switch's args when
424 it is subsequently output with %*. SUFFIX is terminated by the next
426 %d marks the argument containing or following the %d as a
427 temporary file name, so that that file will be deleted if CC exits
428 successfully. Unlike %g, this contributes no text to the argument.
429 %w marks the argument containing or following the %w as the
430 "output file" of this compilation. This puts the argument
431 into the sequence of arguments that %o will substitute later.
432 %V indicates that this compilation produces no "output file".
434 like %{...} but mark last argument supplied within
435 as a file to be deleted on failure.
436 %o substitutes the names of all the output files, with spaces
437 automatically placed around them. You should write spaces
438 around the %o as well or the results are undefined.
439 %o is for use in the specs for running the linker.
440 Input files whose names have no recognized suffix are not compiled
441 at all, but they are included among the output files, so they will
443 %O substitutes the suffix for object files. Note that this is
444 handled specially when it immediately follows %g, %u, or %U
445 (with or without a suffix argument) because of the need for
446 those to form complete file names. The handling is such that
447 %O is treated exactly as if it had already been substituted,
448 except that %g, %u, and %U do not currently support additional
449 SUFFIX characters following %O as they would following, for
451 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
452 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
453 and -B options) as necessary.
454 %s current argument is the name of a library or startup file of some sort.
455 Search for that file in a standard list of directories
456 and substitute the full name found.
457 %eSTR Print STR as an error message. STR is terminated by a newline.
458 Use this when inconsistent options are detected.
459 %nSTR Print STR as a notice. STR is terminated by a newline.
460 %x{OPTION} Accumulate an option for %X.
461 %X Output the accumulated linker options specified by compilations.
462 %Y Output the accumulated assembler options specified by compilations.
463 %Z Output the accumulated preprocessor options specified by compilations.
464 %a process ASM_SPEC as a spec.
465 This allows config.h to specify part of the spec for running as.
466 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
467 used here. This can be used to run a post-processor after the
468 assembler has done its job.
469 %D Dump out a -L option for each directory in startfile_prefixes.
470 If multilib_dir is set, extra entries are generated with it affixed.
471 %l process LINK_SPEC as a spec.
472 %L process LIB_SPEC as a spec.
473 %G process LIBGCC_SPEC as a spec.
474 %M output multilib_dir with directory separators replaced with "_";
475 if multilib_dir is not set or is ".", output "".
476 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
477 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
478 %C process CPP_SPEC as a spec.
479 %1 process CC1_SPEC as a spec.
480 %2 process CC1PLUS_SPEC as a spec.
481 %* substitute the variable part of a matched option. (See below.)
482 Note that each comma in the substituted string is replaced by
484 %<S remove all occurrences of -S from the command line.
485 Note - this command is position dependent. % commands in the
486 spec string before this one will see -S, % commands in the
487 spec string after this one will not.
488 %<S* remove all occurrences of all switches beginning with -S from the
491 Call the named function FUNCTION, passing it ARGS. ARGS is
492 first processed as a nested spec string, then split into an
493 argument vector in the usual fashion. The function returns
494 a string which is processed as if it had appeared literally
495 as part of the current spec.
496 %{S} substitutes the -S switch, if that switch was given to CC.
497 If that switch was not specified, this substitutes nothing.
498 Here S is a metasyntactic variable.
499 %{S*} substitutes all the switches specified to CC whose names start
500 with -S. This is used for -o, -I, etc; switches that take
501 arguments. CC considers `-o foo' as being one switch whose
502 name starts with `o'. %{o*} would substitute this text,
503 including the space; thus, two arguments would be generated.
504 %{S*&T*} likewise, but preserve order of S and T options (the order
505 of S and T in the spec is not significant). Can be any number
506 of ampersand-separated variables; for each the wild card is
507 optional. Useful for CPP as %{D*&U*&A*}.
509 %{S:X} substitutes X, if the -S switch was given to CC.
510 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
511 %{S*:X} substitutes X if one or more switches whose names start
512 with -S was given to CC. Normally X is substituted only
513 once, no matter how many such switches appeared. However,
514 if %* appears somewhere in X, then X will be substituted
515 once for each matching switch, with the %* replaced by the
516 part of that switch that matched the '*'.
517 %{.S:X} substitutes X, if processing a file with suffix S.
518 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
520 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
521 combined with !, ., and * as above binding stronger than the OR.
522 If %* appears in X, all of the alternatives must be starred, and
523 only the first matching alternative is substituted.
524 %{S:X; if S was given to CC, substitutes X;
525 T:Y; else if T was given to CC, substitutes Y;
526 :D} else substitutes D. There can be as many clauses as you need.
527 This may be combined with ., !, |, and * as above.
529 %(Spec) processes a specification defined in a specs file as *Spec:
530 %[Spec] as above, but put __ around -D arguments
532 The conditional text X in a %{S:X} or similar construct may contain
533 other nested % constructs or spaces, or even newlines. They are
534 processed as usual, as described above. Trailing white space in X is
535 ignored. White space may also appear anywhere on the left side of the
536 colon in these constructs, except between . or * and the corresponding
539 The -O, -f, -m, and -W switches are handled specifically in these
540 constructs. If another value of -O or the negated form of a -f, -m, or
541 -W switch is found later in the command line, the earlier switch
542 value is ignored, except with {S*} where S is just one letter; this
543 passes all matching options.
545 The character | at the beginning of the predicate text is used to indicate
546 that a command should be piped to the following command, but only if -pipe
549 Note that it is built into CC which switches take arguments and which
550 do not. You might think it would be useful to generalize this to
551 allow each compiler's spec to say which switches take arguments. But
552 this cannot be done in a consistent fashion. CC cannot even decide
553 which input files have been specified without knowing which switches
554 take arguments, and it must know which input files to compile in order
555 to tell which compilers to run.
557 CC also knows implicitly that arguments starting in `-l' are to be
558 treated as compiler output files, and passed to the linker in their
559 proper position among the other output files. */
561 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
563 /* config.h can define ASM_SPEC to provide extra args to the assembler
564 or extra switch-translations. */
569 /* config.h can define ASM_FINAL_SPEC to run a post processor after
570 the assembler has run. */
571 #ifndef ASM_FINAL_SPEC
572 #define ASM_FINAL_SPEC ""
575 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
576 or extra switch-translations. */
581 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
582 or extra switch-translations. */
587 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
588 or extra switch-translations. */
590 #define CC1PLUS_SPEC ""
593 /* config.h can define LINK_SPEC to provide extra args to the linker
594 or extra switch-translations. */
599 /* config.h can define LIB_SPEC to override the default libraries. */
601 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
606 /* XXX: valid only for GNU ld */
607 /* XXX: should exactly match hooks provided by libmudflap.a */
608 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
609 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
610 --wrap=mmap --wrap=munmap --wrap=alloca\
611 } %{fmudflapth: --wrap=pthread_create --wrap=pthread_join --wrap=pthread_exit\
612 }} %{fmudflap|fmudflapth: --wrap=main}"
615 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
618 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
621 #if defined(REAL_LIBGCC_SPEC)
622 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
623 #elif defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
624 /* Have gcc do the search for libgcc.a. */
625 #define LIBGCC_SPEC "libgcc.a%s"
627 #define LIBGCC_SPEC "-lgcc"
631 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
632 #ifndef STARTFILE_SPEC
633 #define STARTFILE_SPEC \
634 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
637 /* config.h can define SWITCHES_NEED_SPACES to control which options
638 require spaces between the option and the argument. */
639 #ifndef SWITCHES_NEED_SPACES
640 #define SWITCHES_NEED_SPACES ""
643 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
645 #define ENDFILE_SPEC ""
649 #define LINKER_NAME "collect2"
652 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
654 #ifndef ASM_DEBUG_SPEC
655 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
656 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
657 # define ASM_DEBUG_SPEC \
658 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
659 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
660 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
662 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
663 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
665 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
666 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
670 #ifndef ASM_DEBUG_SPEC
671 # define ASM_DEBUG_SPEC ""
674 /* Here is the spec for running the linker, after compiling all files. */
676 /* This is overridable by the target in case they need to specify the
677 -lgcc and -lc order specially, yet not require them to override all
678 of LINK_COMMAND_SPEC. */
679 #ifndef LINK_GCC_C_SEQUENCE_SPEC
680 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
683 #ifndef LINK_PIE_SPEC
685 #define LINK_PIE_SPEC "%{pie:-pie} "
687 #define LINK_PIE_SPEC "%{pie:} "
691 /* -u* was put back because both BSD and SysV seem to support it. */
692 /* %{static:} simply prevents an error message if the target machine
693 doesn't handle -static. */
694 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
695 scripts which exist in user specified directories, or in standard
697 #ifndef LINK_COMMAND_SPEC
698 #define LINK_COMMAND_SPEC "\
699 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
700 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
701 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
702 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o %(mflib)\
703 %{fprofile-arcs|fprofile-generate:-lgcov}\
704 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
705 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
708 #ifndef LINK_LIBGCC_SPEC
709 # ifdef LINK_LIBGCC_SPECIAL
710 /* Don't generate -L options for startfile prefix list. */
711 # define LINK_LIBGCC_SPEC ""
713 /* Do generate them. */
714 # define LINK_LIBGCC_SPEC "%D"
718 #ifndef STARTFILE_PREFIX_SPEC
719 # define STARTFILE_PREFIX_SPEC ""
722 #ifndef SYSROOT_SUFFIX_SPEC
723 # define SYSROOT_SUFFIX_SPEC ""
726 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
727 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
730 static const char *asm_debug
;
731 static const char *cpp_spec
= CPP_SPEC
;
732 static const char *cc1_spec
= CC1_SPEC
;
733 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
734 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
735 static const char *asm_spec
= ASM_SPEC
;
736 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
737 static const char *link_spec
= LINK_SPEC
;
738 static const char *lib_spec
= LIB_SPEC
;
739 static const char *mfwrap_spec
= MFWRAP_SPEC
;
740 static const char *mflib_spec
= MFLIB_SPEC
;
741 static const char *libgcc_spec
= LIBGCC_SPEC
;
742 static const char *endfile_spec
= ENDFILE_SPEC
;
743 static const char *startfile_spec
= STARTFILE_SPEC
;
744 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
745 static const char *linker_name_spec
= LINKER_NAME
;
746 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
747 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
748 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
749 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
750 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
752 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
753 There should be no need to override these in target dependent files,
754 but we need to copy them to the specs file so that newer versions
755 of the GCC driver can correctly drive older tool chains with the
756 appropriate -B options. */
758 /* When cpplib handles traditional preprocessing, get rid of this, and
759 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
760 that we default the front end language better. */
761 static const char *trad_capable_cpp
=
762 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
764 /* We don't wrap .d files in %W{} since a missing .d file, and
765 therefore no dependency entry, confuses make into thinking a .o
766 file that happens to exist is up-to-date. */
767 static const char *cpp_unique_options
=
768 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
769 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
770 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
771 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
772 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
773 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
774 %{trigraphs} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
775 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
776 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
779 /* This contains cpp options which are common with cc1_options and are passed
780 only when preprocessing only to avoid duplication. We pass the cc1 spec
781 options to the preprocessor so that it the cc1 spec may manipulate
782 options used to set target flags. Those special target flags settings may
783 in turn cause preprocessor symbols to be defined specially. */
784 static const char *cpp_options
=
785 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
786 %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*} %{undef}\
787 %{save-temps:-fpch-preprocess}";
789 /* This contains cpp options which are not passed when the preprocessor
790 output will be used by another program. */
791 static const char *cpp_debug_options
= "%{d*}";
793 /* NB: This is shared amongst all front-ends. */
794 static const char *cc1_options
=
795 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
796 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
797 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
798 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
799 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
800 %{Qn:-fno-ident} %{--help:--help}\
801 %{--target-help:--target-help}\
802 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
803 %{fsyntax-only:-o %j} %{-param*}\
804 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}";
806 static const char *asm_options
=
807 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
809 static const char *invoke_as
=
810 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
811 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
813 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
816 /* Some compilers have limits on line lengths, and the multilib_select
817 and/or multilib_matches strings can be very long, so we build them at
819 static struct obstack multilib_obstack
;
820 static const char *multilib_select
;
821 static const char *multilib_matches
;
822 static const char *multilib_defaults
;
823 static const char *multilib_exclusions
;
825 /* Check whether a particular argument is a default argument. */
827 #ifndef MULTILIB_DEFAULTS
828 #define MULTILIB_DEFAULTS { "" }
831 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
833 #ifndef DRIVER_SELF_SPECS
834 #define DRIVER_SELF_SPECS ""
837 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
839 #ifndef OPTION_DEFAULT_SPECS
840 #define OPTION_DEFAULT_SPECS { "", "" }
849 static const struct default_spec
850 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
854 struct user_specs
*next
;
855 const char *filename
;
858 static struct user_specs
*user_specs_head
, *user_specs_tail
;
860 #ifndef SWITCH_TAKES_ARG
861 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
864 #ifndef WORD_SWITCH_TAKES_ARG
865 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
868 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
869 /* This defines which switches stop a full compilation. */
870 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
871 ((CHAR) == 'c' || (CHAR) == 'S')
873 #ifndef SWITCH_CURTAILS_COMPILATION
874 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
875 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
879 /* Record the mapping from file suffixes for compilation specs. */
883 const char *suffix
; /* Use this compiler for input files
884 whose names end in this suffix. */
886 const char *spec
; /* To use this compiler, run this spec. */
888 const char *cpp_spec
; /* If non-NULL, substitute this spec
889 for `%C', rather than the usual
891 const int combinable
; /* If nonzero, compiler can deal with
892 multiple source files at once (IMA). */
893 const int needs_preprocessing
; /* If nonzero, source files need to
894 be run through a preprocessor. */
897 /* Pointer to a vector of `struct compiler' that gives the spec for
898 compiling a file, based on its suffix.
899 A file that does not end in any of these suffixes will be passed
900 unchanged to the loader and nothing else will be done to it.
902 An entry containing two 0s is used to terminate the vector.
904 If multiple entries match a file, the last matching one is used. */
906 static struct compiler
*compilers
;
908 /* Number of entries in `compilers', not counting the null terminator. */
910 static int n_compilers
;
912 /* The default list of file name suffixes and their compilation specs. */
914 static const struct compiler default_compilers
[] =
916 /* Add lists of suffixes of known languages here. If those languages
917 were not present when we built the driver, we will hit these copies
918 and be given a more meaningful error than "file not used since
919 linking is not done". */
920 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
921 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
922 {".mii", "#Objective-C++", 0, 0, 0},
923 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
924 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
925 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
926 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
927 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
928 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
929 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
930 {".FPP", "#Fortran", 0, 0, 0},
931 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
932 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
933 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
934 {".r", "#Ratfor", 0, 0, 0},
935 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
936 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
937 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
938 /* Next come the entries for C. */
939 {".c", "@c", 0, 1, 1},
941 /* cc1 has an integrated ISO C preprocessor. We should invoke the
942 external preprocessor if -save-temps is given. */
943 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
945 %{traditional|ftraditional:\
946 %eGNU C no longer supports -traditional without -E}\
948 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
949 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
950 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
952 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
953 cc1 %(cpp_unique_options) %(cc1_options)}}}\
954 %{!fsyntax-only:%(invoke_as)}} \
956 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
957 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
958 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
959 cc1 %(cpp_unique_options) %(cc1_options)}}\
960 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
962 "%{!E:%e-E required when input is from standard input}\
963 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
964 {".h", "@c-header", 0, 0, 0},
966 /* cc1 has an integrated ISO C preprocessor. We should invoke the
967 external preprocessor if -save-temps is given. */
968 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
970 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
971 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
972 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
974 -o %g.s %{!o*:--output-pch=%i.gch}\
975 %W{o*:--output-pch=%*}%V}\
976 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
977 cc1 %(cpp_unique_options) %(cc1_options)\
978 -o %g.s %{!o*:--output-pch=%i.gch}\
979 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
980 {".i", "@cpp-output", 0, 1, 0},
982 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
983 {".s", "@assembler", 0, 1, 0},
985 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
986 {".S", "@assembler-with-cpp", 0, 1, 0},
987 {"@assembler-with-cpp",
988 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
989 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
990 %{E|M|MM:%(cpp_debug_options)}\
991 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
992 as %(asm_debug) %(asm_options) %|.s %A }}}}"
994 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
995 %{E|M|MM:%(cpp_debug_options)}\
996 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
997 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1002 /* Mark end of table. */
1006 /* Number of elements in default_compilers, not counting the terminator. */
1008 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1010 /* A vector of options to give to the linker.
1011 These options are accumulated by %x,
1012 and substituted into the linker command with %X. */
1013 static int n_linker_options
;
1014 static char **linker_options
;
1016 /* A vector of options to give to the assembler.
1017 These options are accumulated by -Wa,
1018 and substituted into the assembler command with %Y. */
1019 static int n_assembler_options
;
1020 static char **assembler_options
;
1022 /* A vector of options to give to the preprocessor.
1023 These options are accumulated by -Wp,
1024 and substituted into the preprocessor command with %Z. */
1025 static int n_preprocessor_options
;
1026 static char **preprocessor_options
;
1028 /* Define how to map long options into short ones. */
1030 /* This structure describes one mapping. */
1033 /* The long option's name. */
1034 const char *const name
;
1035 /* The equivalent short option. */
1036 const char *const equivalent
;
1037 /* Argument info. A string of flag chars; NULL equals no options.
1038 a => argument required.
1039 o => argument optional.
1040 j => join argument to equivalent, making one word.
1041 * => require other text after NAME as an argument. */
1042 const char *const arg_info
;
1045 /* This is the table of mappings. Mappings are tried sequentially
1046 for each option encountered; the first one that matches, wins. */
1048 static const struct option_map option_map
[] =
1050 {"--all-warnings", "-Wall", 0},
1051 {"--ansi", "-ansi", 0},
1052 {"--assemble", "-S", 0},
1053 {"--assert", "-A", "a"},
1054 {"--classpath", "-fclasspath=", "aj"},
1055 {"--bootclasspath", "-fbootclasspath=", "aj"},
1056 {"--CLASSPATH", "-fclasspath=", "aj"},
1057 {"--combine", "-combine", 0},
1058 {"--comments", "-C", 0},
1059 {"--comments-in-macros", "-CC", 0},
1060 {"--compile", "-c", 0},
1061 {"--debug", "-g", "oj"},
1062 {"--define-macro", "-D", "aj"},
1063 {"--dependencies", "-M", 0},
1064 {"--dump", "-d", "a"},
1065 {"--dumpbase", "-dumpbase", "a"},
1066 {"--entry", "-e", 0},
1067 {"--extra-warnings", "-W", 0},
1068 {"--for-assembler", "-Wa", "a"},
1069 {"--for-linker", "-Xlinker", "a"},
1070 {"--force-link", "-u", "a"},
1071 {"--imacros", "-imacros", "a"},
1072 {"--include", "-include", "a"},
1073 {"--include-barrier", "-I-", 0},
1074 {"--include-directory", "-I", "aj"},
1075 {"--include-directory-after", "-idirafter", "a"},
1076 {"--include-prefix", "-iprefix", "a"},
1077 {"--include-with-prefix", "-iwithprefix", "a"},
1078 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1079 {"--include-with-prefix-after", "-iwithprefix", "a"},
1080 {"--language", "-x", "a"},
1081 {"--library-directory", "-L", "a"},
1082 {"--machine", "-m", "aj"},
1083 {"--machine-", "-m", "*j"},
1084 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1085 {"--no-line-commands", "-P", 0},
1086 {"--no-precompiled-includes", "-noprecomp", 0},
1087 {"--no-standard-includes", "-nostdinc", 0},
1088 {"--no-standard-libraries", "-nostdlib", 0},
1089 {"--no-warnings", "-w", 0},
1090 {"--optimize", "-O", "oj"},
1091 {"--output", "-o", "a"},
1092 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1093 {"--param", "--param", "a"},
1094 {"--pedantic", "-pedantic", 0},
1095 {"--pedantic-errors", "-pedantic-errors", 0},
1096 {"--pie", "-pie", 0},
1097 {"--pipe", "-pipe", 0},
1098 {"--prefix", "-B", "a"},
1099 {"--preprocess", "-E", 0},
1100 {"--print-search-dirs", "-print-search-dirs", 0},
1101 {"--print-file-name", "-print-file-name=", "aj"},
1102 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1103 {"--print-missing-file-dependencies", "-MG", 0},
1104 {"--print-multi-lib", "-print-multi-lib", 0},
1105 {"--print-multi-directory", "-print-multi-directory", 0},
1106 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1107 {"--print-prog-name", "-print-prog-name=", "aj"},
1108 {"--profile", "-p", 0},
1109 {"--profile-blocks", "-a", 0},
1110 {"--quiet", "-q", 0},
1111 {"--resource", "-fcompile-resource=", "aj"},
1112 {"--save-temps", "-save-temps", 0},
1113 {"--shared", "-shared", 0},
1114 {"--silent", "-q", 0},
1115 {"--specs", "-specs=", "aj"},
1116 {"--static", "-static", 0},
1117 {"--std", "-std=", "aj"},
1118 {"--symbolic", "-symbolic", 0},
1119 {"--time", "-time", 0},
1120 {"--trace-includes", "-H", 0},
1121 {"--traditional", "-traditional", 0},
1122 {"--traditional-cpp", "-traditional-cpp", 0},
1123 {"--trigraphs", "-trigraphs", 0},
1124 {"--undefine-macro", "-U", "aj"},
1125 {"--user-dependencies", "-MM", 0},
1126 {"--verbose", "-v", 0},
1127 {"--warn-", "-W", "*j"},
1128 {"--write-dependencies", "-MD", 0},
1129 {"--write-user-dependencies", "-MMD", 0},
1134 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1135 static const struct {
1136 const char *const option_found
;
1137 const char *const replacements
;
1138 } target_option_translations
[] =
1140 TARGET_OPTION_TRANSLATE_TABLE
,
1145 /* Translate the options described by *ARGCP and *ARGVP.
1146 Make a new vector and store it back in *ARGVP,
1147 and store its length in *ARGVC. */
1150 translate_options (int *argcp
, const char *const **argvp
)
1154 const char *const *argv
= *argvp
;
1155 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1156 const char **newv
= xmalloc (newvsize
);
1160 newv
[newindex
++] = argv
[i
++];
1164 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1168 target_option_translations
[tott_idx
].option_found
;
1171 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1178 for (sp
= target_option_translations
[tott_idx
].replacements
;
1185 newvsize
+= spaces
* sizeof (const char *);
1186 newv
= xrealloc (newv
, newvsize
);
1188 sp
= target_option_translations
[tott_idx
].replacements
;
1197 newv
[newindex
++] = np
;
1198 while (*np
!= ' ' && *np
)
1209 if (target_option_translations
[tott_idx
].option_found
)
1213 /* Translate -- options. */
1214 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1217 /* Find a mapping that applies to this option. */
1218 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1220 size_t optlen
= strlen (option_map
[j
].name
);
1221 size_t arglen
= strlen (argv
[i
]);
1222 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1223 const char *arginfo
= option_map
[j
].arg_info
;
1228 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1230 const char *arg
= 0;
1232 if (arglen
< optlen
)
1235 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1236 if (strlen (option_map
[k
].name
) >= arglen
1237 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1239 error ("ambiguous abbreviation %s", argv
[i
]);
1243 if (k
!= ARRAY_SIZE (option_map
))
1247 if (arglen
> optlen
)
1249 /* If the option has an argument, accept that. */
1250 if (argv
[i
][optlen
] == '=')
1251 arg
= argv
[i
] + optlen
+ 1;
1253 /* If this mapping requires extra text at end of name,
1254 accept that as "argument". */
1255 else if (strchr (arginfo
, '*') != 0)
1256 arg
= argv
[i
] + optlen
;
1258 /* Otherwise, extra text at end means mismatch.
1259 Try other mappings. */
1264 else if (strchr (arginfo
, '*') != 0)
1266 error ("incomplete `%s' option", option_map
[j
].name
);
1270 /* Handle arguments. */
1271 if (strchr (arginfo
, 'a') != 0)
1277 error ("missing argument to `%s' option",
1278 option_map
[j
].name
);
1285 else if (strchr (arginfo
, '*') != 0)
1287 else if (strchr (arginfo
, 'o') == 0)
1290 error ("extraneous argument to `%s' option",
1291 option_map
[j
].name
);
1295 /* Store the translation as one argv elt or as two. */
1296 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1297 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1301 newv
[newindex
++] = option_map
[j
].equivalent
;
1302 newv
[newindex
++] = arg
;
1305 newv
[newindex
++] = option_map
[j
].equivalent
;
1313 /* Handle old-fashioned options--just copy them through,
1314 with their arguments. */
1315 else if (argv
[i
][0] == '-')
1317 const char *p
= argv
[i
] + 1;
1321 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1322 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1323 else if (WORD_SWITCH_TAKES_ARG (p
))
1324 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1325 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1328 else if (! strcmp (p
, "Xlinker"))
1330 else if (! strcmp (p
, "Xpreprocessor"))
1332 else if (! strcmp (p
, "Xassembler"))
1335 /* Watch out for an option at the end of the command line that
1336 is missing arguments, and avoid skipping past the end of the
1338 if (nskip
+ i
> argc
)
1343 newv
[newindex
++] = argv
[i
++];
1348 /* Ordinary operands, or +e options. */
1349 newv
[newindex
++] = argv
[i
++];
1359 skip_whitespace (char *p
)
1363 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1364 be considered whitespace. */
1365 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1367 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1381 /* Structures to keep track of prefixes to try when looking for files. */
1385 const char *prefix
; /* String to prepend to the path. */
1386 struct prefix_list
*next
; /* Next in linked list. */
1387 int require_machine_suffix
; /* Don't use without machine_suffix. */
1388 /* 2 means try both machine_suffix and just_machine_suffix. */
1389 int priority
; /* Sort key - priority within list. */
1390 int os_multilib
; /* 1 if OS multilib scheme should be used,
1391 0 for GCC multilib scheme. */
1396 struct prefix_list
*plist
; /* List of prefixes to try */
1397 int max_len
; /* Max length of a prefix in PLIST */
1398 const char *name
; /* Name of this list (used in config stuff) */
1401 /* List of prefixes to try when looking for executables. */
1403 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1405 /* List of prefixes to try when looking for startup (crt0) files. */
1407 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1409 /* List of prefixes to try when looking for include files. */
1411 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1413 /* Suffix to attach to directories searched for commands.
1414 This looks like `MACHINE/VERSION/'. */
1416 static const char *machine_suffix
= 0;
1418 /* Suffix to attach to directories searched for commands.
1419 This is just `MACHINE/'. */
1421 static const char *just_machine_suffix
= 0;
1423 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1425 static const char *gcc_exec_prefix
;
1427 /* Adjusted value of standard_libexec_prefix. */
1429 static const char *gcc_libexec_prefix
;
1431 /* Default prefixes to attach to command names. */
1433 #ifndef STANDARD_STARTFILE_PREFIX_1
1434 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1436 #ifndef STANDARD_STARTFILE_PREFIX_2
1437 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1440 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1441 #undef MD_EXEC_PREFIX
1442 #undef MD_STARTFILE_PREFIX
1443 #undef MD_STARTFILE_PREFIX_1
1446 /* If no prefixes defined, use the null string, which will disable them. */
1447 #ifndef MD_EXEC_PREFIX
1448 #define MD_EXEC_PREFIX ""
1450 #ifndef MD_STARTFILE_PREFIX
1451 #define MD_STARTFILE_PREFIX ""
1453 #ifndef MD_STARTFILE_PREFIX_1
1454 #define MD_STARTFILE_PREFIX_1 ""
1457 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1458 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1459 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1460 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1462 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1463 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1464 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1465 static const char *const standard_startfile_prefix_1
1466 = STANDARD_STARTFILE_PREFIX_1
;
1467 static const char *const standard_startfile_prefix_2
1468 = STANDARD_STARTFILE_PREFIX_2
;
1470 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1471 static const char *tooldir_prefix
;
1473 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1475 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1477 /* Subdirectory to use for locating libraries. Set by
1478 set_multilib_dir based on the compilation options. */
1480 static const char *multilib_dir
;
1482 /* Subdirectory to use for locating libraries in OS conventions. Set by
1483 set_multilib_dir based on the compilation options. */
1485 static const char *multilib_os_dir
;
1487 /* Structure to keep track of the specs that have been defined so far.
1488 These are accessed using %(specname) or %[specname] in a compiler
1493 /* The following 2 fields must be first */
1494 /* to allow EXTRA_SPECS to be initialized */
1495 const char *name
; /* name of the spec. */
1496 const char *ptr
; /* available ptr if no static pointer */
1498 /* The following fields are not initialized */
1499 /* by EXTRA_SPECS */
1500 const char **ptr_spec
; /* pointer to the spec itself. */
1501 struct spec_list
*next
; /* Next spec in linked list. */
1502 int name_len
; /* length of the name */
1503 int alloc_p
; /* whether string was allocated */
1506 #define INIT_STATIC_SPEC(NAME,PTR) \
1507 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1509 /* List of statically defined specs. */
1510 static struct spec_list static_specs
[] =
1512 INIT_STATIC_SPEC ("asm", &asm_spec
),
1513 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1514 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1515 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1516 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1517 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1518 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1519 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1520 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1521 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1522 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1523 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1524 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1525 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1526 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1527 INIT_STATIC_SPEC ("link", &link_spec
),
1528 INIT_STATIC_SPEC ("lib", &lib_spec
),
1529 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1530 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1531 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1532 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1533 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1534 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1535 INIT_STATIC_SPEC ("version", &compiler_version
),
1536 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1537 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1538 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1539 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1540 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1541 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1542 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1543 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1544 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1545 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1546 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1547 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1548 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1549 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1552 #ifdef EXTRA_SPECS /* additional specs needed */
1553 /* Structure to keep track of just the first two args of a spec_list.
1554 That is all that the EXTRA_SPECS macro gives us. */
1557 const char *const name
;
1558 const char *const ptr
;
1561 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1562 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1565 /* List of dynamically allocates specs that have been defined so far. */
1567 static struct spec_list
*specs
= (struct spec_list
*) 0;
1569 /* List of static spec functions. */
1571 static const struct spec_function static_spec_functions
[] =
1573 { "if-exists", if_exists_spec_function
},
1574 { "if-exists-else", if_exists_else_spec_function
},
1578 static int processing_spec_function
;
1580 /* Add appropriate libgcc specs to OBSTACK, taking into account
1581 various permutations of -shared-libgcc, -shared, and such. */
1583 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1585 #ifndef USE_LD_AS_NEEDED
1586 #define USE_LD_AS_NEEDED 0
1590 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1591 const char *static_name
, const char *eh_name
)
1595 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1596 "}%{!static:%{!static-libgcc:",
1597 #if USE_LD_AS_NEEDED
1598 "%{!shared-libgcc:", static_name
,
1599 " --as-needed ", shared_name
, " --no-as-needed}"
1600 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1603 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1604 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1605 static_name
, "}}%{shared:",
1607 "%{shared-libgcc:", shared_name
,
1608 "}%{!shared-libgcc:", static_name
, "}",
1615 obstack_grow (obstack
, buf
, strlen (buf
));
1618 #endif /* ENABLE_SHARED_LIBGCC */
1620 /* Initialize the specs lookup routines. */
1625 struct spec_list
*next
= (struct spec_list
*) 0;
1626 struct spec_list
*sl
= (struct spec_list
*) 0;
1630 return; /* Already initialized. */
1633 notice ("Using built-in specs.\n");
1636 extra_specs
= xcalloc (sizeof (struct spec_list
),
1637 ARRAY_SIZE (extra_specs_1
));
1639 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1641 sl
= &extra_specs
[i
];
1642 sl
->name
= extra_specs_1
[i
].name
;
1643 sl
->ptr
= extra_specs_1
[i
].ptr
;
1645 sl
->name_len
= strlen (sl
->name
);
1646 sl
->ptr_spec
= &sl
->ptr
;
1651 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1652 on ?: in file-scope variable initializations. */
1653 asm_debug
= ASM_DEBUG_SPEC
;
1655 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1657 sl
= &static_specs
[i
];
1662 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1663 /* ??? If neither -shared-libgcc nor --static-libgcc was
1664 seen, then we should be making an educated guess. Some proposed
1665 heuristics for ELF include:
1667 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1668 program will be doing dynamic loading, which will likely
1669 need the shared libgcc.
1671 (2) If "-ldl", then it's also a fair bet that we're doing
1674 (3) For each ET_DYN we're linking against (either through -lfoo
1675 or /some/path/foo.so), check to see whether it or one of
1676 its dependencies depends on a shared libgcc.
1680 If the runtime is fixed to look for program headers instead
1681 of calling __register_frame_info at all, for each object,
1682 use the shared libgcc if any EH symbol referenced.
1684 If crtstuff is fixed to not invoke __register_frame_info
1685 automatically, for each object, use the shared libgcc if
1686 any non-empty unwind section found.
1688 Doing any of this probably requires invoking an external program to
1689 do the actual object file scanning. */
1691 const char *p
= libgcc_spec
;
1694 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1695 when given the proper command line arguments. */
1698 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1700 init_gcc_specs (&obstack
,
1701 #ifdef NO_SHARED_LIBGCC_MULTILIB
1709 #ifdef USE_LIBUNWIND_EXCEPTIONS
1717 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1719 /* Ug. We don't know shared library extensions. Hope that
1720 systems that use this form don't do shared libraries. */
1721 init_gcc_specs (&obstack
,
1722 #ifdef NO_SHARED_LIBGCC_MULTILIB
1730 #ifdef USE_LIBUNWIND_EXCEPTIONS
1739 obstack_1grow (&obstack
, *p
);
1740 in_sep
= (*p
== ' ');
1745 obstack_1grow (&obstack
, '\0');
1746 libgcc_spec
= obstack_finish (&obstack
);
1749 #ifdef USE_AS_TRADITIONAL_FORMAT
1750 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1752 static const char tf
[] = "--traditional-format ";
1753 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1754 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1755 asm_spec
= obstack_finish (&obstack
);
1759 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1760 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1761 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1762 link_spec
= obstack_finish (&obstack
);
1768 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1769 removed; If the spec starts with a + then SPEC is added to the end of the
1773 set_spec (const char *name
, const char *spec
)
1775 struct spec_list
*sl
;
1776 const char *old_spec
;
1777 int name_len
= strlen (name
);
1780 /* If this is the first call, initialize the statically allocated specs. */
1783 struct spec_list
*next
= (struct spec_list
*) 0;
1784 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1786 sl
= &static_specs
[i
];
1793 /* See if the spec already exists. */
1794 for (sl
= specs
; sl
; sl
= sl
->next
)
1795 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1800 /* Not found - make it. */
1801 sl
= xmalloc (sizeof (struct spec_list
));
1802 sl
->name
= xstrdup (name
);
1803 sl
->name_len
= name_len
;
1804 sl
->ptr_spec
= &sl
->ptr
;
1806 *(sl
->ptr_spec
) = "";
1811 old_spec
= *(sl
->ptr_spec
);
1812 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1813 ? concat (old_spec
, spec
+ 1, NULL
)
1818 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1821 /* Free the old spec. */
1822 if (old_spec
&& sl
->alloc_p
)
1823 free ((void *) old_spec
);
1828 /* Accumulate a command (program name and args), and run it. */
1830 /* Vector of pointers to arguments in the current line of specifications. */
1832 static const char **argbuf
;
1834 /* Number of elements allocated in argbuf. */
1836 static int argbuf_length
;
1838 /* Number of elements in argbuf currently in use (containing args). */
1840 static int argbuf_index
;
1842 /* Position in the argbuf array containing the name of the output file
1843 (the value associated with the "-o" flag). */
1845 static int have_o_argbuf_index
= 0;
1847 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1848 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1851 static struct temp_name
{
1852 const char *suffix
; /* suffix associated with the code. */
1853 int length
; /* strlen (suffix). */
1854 int unique
; /* Indicates whether %g or %u/%U was used. */
1855 const char *filename
; /* associated filename. */
1856 int filename_length
; /* strlen (filename). */
1857 struct temp_name
*next
;
1860 /* Number of commands executed so far. */
1862 static int execution_count
;
1864 /* Number of commands that exited with a signal. */
1866 static int signal_count
;
1868 /* Name with which this program was invoked. */
1870 static const char *programname
;
1872 /* Allocate the argument vector. */
1878 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1881 /* Clear out the vector of arguments (after a command is executed). */
1889 /* Add one argument to the vector at the end.
1890 This is done when a space is seen or at the end of the line.
1891 If DELETE_ALWAYS is nonzero, the arg is a filename
1892 and the file should be deleted eventually.
1893 If DELETE_FAILURE is nonzero, the arg is a filename
1894 and the file should be deleted if this compilation fails. */
1897 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1899 if (argbuf_index
+ 1 == argbuf_length
)
1900 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1902 argbuf
[argbuf_index
++] = arg
;
1903 argbuf
[argbuf_index
] = 0;
1905 if (strcmp (arg
, "-o") == 0)
1906 have_o_argbuf_index
= argbuf_index
;
1907 if (delete_always
|| delete_failure
)
1908 record_temp_file (arg
, delete_always
, delete_failure
);
1911 /* Load specs from a file name named FILENAME, replacing occurrences of
1912 various different types of line-endings, \r\n, \n\r and just \r, with
1916 load_specs (const char *filename
)
1920 struct stat statbuf
;
1927 notice ("Reading specs from %s\n", filename
);
1929 /* Open and stat the file. */
1930 desc
= open (filename
, O_RDONLY
, 0);
1932 pfatal_with_name (filename
);
1933 if (stat (filename
, &statbuf
) < 0)
1934 pfatal_with_name (filename
);
1936 /* Read contents of file into BUFFER. */
1937 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1938 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1940 pfatal_with_name (filename
);
1941 buffer
[readlen
] = 0;
1944 specs
= xmalloc (readlen
+ 1);
1946 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1952 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1954 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1968 /* Read compilation specs from a file named FILENAME,
1969 replacing the default ones.
1971 A suffix which starts with `*' is a definition for
1972 one of the machine-specific sub-specs. The "suffix" should be
1973 *asm, *cc1, *cpp, *link, *startfile, etc.
1974 The corresponding spec is stored in asm_spec, etc.,
1975 rather than in the `compilers' vector.
1977 Anything invalid in the file is a fatal error. */
1980 read_specs (const char *filename
, int main_p
)
1985 buffer
= load_specs (filename
);
1987 /* Scan BUFFER for specs, putting them in the vector. */
1993 char *in
, *out
, *p1
, *p2
, *p3
;
1995 /* Advance P in BUFFER to the next nonblank nocomment line. */
1996 p
= skip_whitespace (p
);
2000 /* Is this a special command that starts with '%'? */
2001 /* Don't allow this for the main specs file, since it would
2002 encourage people to overwrite it. */
2003 if (*p
== '%' && !main_p
)
2006 while (*p
&& *p
!= '\n')
2012 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2013 && (p1
[sizeof "%include" - 1] == ' '
2014 || p1
[sizeof "%include" - 1] == '\t'))
2018 p1
+= sizeof ("%include");
2019 while (*p1
== ' ' || *p1
== '\t')
2022 if (*p1
++ != '<' || p
[-2] != '>')
2023 fatal ("specs %%include syntax malformed after %ld characters",
2024 (long) (p1
- buffer
+ 1));
2027 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2028 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2031 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2032 && (p1
[sizeof "%include_noerr" - 1] == ' '
2033 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2037 p1
+= sizeof "%include_noerr";
2038 while (*p1
== ' ' || *p1
== '\t')
2041 if (*p1
++ != '<' || p
[-2] != '>')
2042 fatal ("specs %%include syntax malformed after %ld characters",
2043 (long) (p1
- buffer
+ 1));
2046 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2048 read_specs (new_filename
, FALSE
);
2049 else if (verbose_flag
)
2050 notice ("could not find specs file %s\n", p1
);
2053 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2054 && (p1
[sizeof "%rename" - 1] == ' '
2055 || p1
[sizeof "%rename" - 1] == '\t'))
2058 struct spec_list
*sl
;
2059 struct spec_list
*newsl
;
2061 /* Get original name. */
2062 p1
+= sizeof "%rename";
2063 while (*p1
== ' ' || *p1
== '\t')
2066 if (! ISALPHA ((unsigned char) *p1
))
2067 fatal ("specs %%rename syntax malformed after %ld characters",
2068 (long) (p1
- buffer
));
2071 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2074 if (*p2
!= ' ' && *p2
!= '\t')
2075 fatal ("specs %%rename syntax malformed after %ld characters",
2076 (long) (p2
- buffer
));
2080 while (*p2
== ' ' || *p2
== '\t')
2083 if (! ISALPHA ((unsigned char) *p2
))
2084 fatal ("specs %%rename syntax malformed after %ld characters",
2085 (long) (p2
- buffer
));
2087 /* Get new spec name. */
2089 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2093 fatal ("specs %%rename syntax malformed after %ld characters",
2094 (long) (p3
- buffer
));
2097 for (sl
= specs
; sl
; sl
= sl
->next
)
2098 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2102 fatal ("specs %s spec was not found to be renamed", p1
);
2104 if (strcmp (p1
, p2
) == 0)
2107 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2108 if (strcmp (newsl
->name
, p2
) == 0)
2109 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2114 notice ("rename spec %s to %s\n", p1
, p2
);
2116 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2120 set_spec (p2
, *(sl
->ptr_spec
));
2122 free ((void *) *(sl
->ptr_spec
));
2124 *(sl
->ptr_spec
) = "";
2129 fatal ("specs unknown %% command after %ld characters",
2130 (long) (p1
- buffer
));
2133 /* Find the colon that should end the suffix. */
2135 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2138 /* The colon shouldn't be missing. */
2140 fatal ("specs file malformed after %ld characters",
2141 (long) (p1
- buffer
));
2143 /* Skip back over trailing whitespace. */
2145 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2148 /* Copy the suffix to a string. */
2149 suffix
= save_string (p
, p2
- p
);
2150 /* Find the next line. */
2151 p
= skip_whitespace (p1
+ 1);
2153 fatal ("specs file malformed after %ld characters",
2154 (long) (p
- buffer
));
2157 /* Find next blank line or end of string. */
2158 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2161 /* Specs end at the blank line and do not include the newline. */
2162 spec
= save_string (p
, p1
- p
);
2165 /* Delete backslash-newline sequences from the spec. */
2170 if (in
[0] == '\\' && in
[1] == '\n')
2172 else if (in
[0] == '#')
2173 while (*in
&& *in
!= '\n')
2181 if (suffix
[0] == '*')
2183 if (! strcmp (suffix
, "*link_command"))
2184 link_command_spec
= spec
;
2186 set_spec (suffix
+ 1, spec
);
2190 /* Add this pair to the vector. */
2192 = xrealloc (compilers
,
2193 (n_compilers
+ 2) * sizeof (struct compiler
));
2195 compilers
[n_compilers
].suffix
= suffix
;
2196 compilers
[n_compilers
].spec
= spec
;
2198 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2202 link_command_spec
= spec
;
2205 if (link_command_spec
== 0)
2206 fatal ("spec file has no spec for linking");
2209 /* Record the names of temporary files we tell compilers to write,
2210 and delete them at the end of the run. */
2212 /* This is the common prefix we use to make temp file names.
2213 It is chosen once for each run of this program.
2214 It is substituted into a spec by %g or %j.
2215 Thus, all temp file names contain this prefix.
2216 In practice, all temp file names start with this prefix.
2218 This prefix comes from the envvar TMPDIR if it is defined;
2219 otherwise, from the P_tmpdir macro if that is defined;
2220 otherwise, in /usr/tmp or /tmp;
2221 or finally the current directory if all else fails. */
2223 static const char *temp_filename
;
2225 /* Length of the prefix. */
2227 static int temp_filename_length
;
2229 /* Define the list of temporary files to delete. */
2234 struct temp_file
*next
;
2237 /* Queue of files to delete on success or failure of compilation. */
2238 static struct temp_file
*always_delete_queue
;
2239 /* Queue of files to delete on failure of compilation. */
2240 static struct temp_file
*failure_delete_queue
;
2242 /* Record FILENAME as a file to be deleted automatically.
2243 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2244 otherwise delete it in any case.
2245 FAIL_DELETE nonzero means delete it if a compilation step fails;
2246 otherwise delete it in any case. */
2249 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2251 char *const name
= xstrdup (filename
);
2255 struct temp_file
*temp
;
2256 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2257 if (! strcmp (name
, temp
->name
))
2260 temp
= xmalloc (sizeof (struct temp_file
));
2261 temp
->next
= always_delete_queue
;
2263 always_delete_queue
= temp
;
2270 struct temp_file
*temp
;
2271 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2272 if (! strcmp (name
, temp
->name
))
2275 temp
= xmalloc (sizeof (struct temp_file
));
2276 temp
->next
= failure_delete_queue
;
2278 failure_delete_queue
= temp
;
2284 /* Delete all the temporary files whose names we previously recorded. */
2286 #ifndef DELETE_IF_ORDINARY
2287 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2290 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2291 if (unlink (NAME) < 0) \
2293 perror_with_name (NAME); \
2298 delete_if_ordinary (const char *name
)
2304 printf ("Delete %s? (y or n) ", name
);
2308 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2311 if (i
== 'y' || i
== 'Y')
2313 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2317 delete_temp_files (void)
2319 struct temp_file
*temp
;
2321 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2322 delete_if_ordinary (temp
->name
);
2323 always_delete_queue
= 0;
2326 /* Delete all the files to be deleted on error. */
2329 delete_failure_queue (void)
2331 struct temp_file
*temp
;
2333 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2334 delete_if_ordinary (temp
->name
);
2338 clear_failure_queue (void)
2340 failure_delete_queue
= 0;
2343 /* Build a list of search directories from PATHS.
2344 PREFIX is a string to prepend to the list.
2345 If CHECK_DIR_P is nonzero we ensure the directory exists.
2346 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2347 It is also used by the --print-search-dirs flag. */
2350 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2353 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2355 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2356 int first_time
= TRUE
;
2357 struct prefix_list
*pprefix
;
2359 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2360 obstack_1grow (&collect_obstack
, '=');
2362 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2364 int len
= strlen (pprefix
->prefix
);
2368 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2371 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2374 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2375 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2378 if (just_machine_suffix
2379 && pprefix
->require_machine_suffix
== 2
2381 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2384 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2387 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2388 obstack_grow (&collect_obstack
, just_machine_suffix
,
2392 if (! pprefix
->require_machine_suffix
)
2395 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2398 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2402 obstack_1grow (&collect_obstack
, '\0');
2403 return obstack_finish (&collect_obstack
);
2406 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2410 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2412 putenv (build_search_list (paths
, env_var
, 1));
2415 /* Check whether NAME can be accessed in MODE. This is like access,
2416 except that it never considers directories to be executable. */
2419 access_check (const char *name
, int mode
)
2425 if (stat (name
, &st
) < 0
2426 || S_ISDIR (st
.st_mode
))
2430 return access (name
, mode
);
2433 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2434 access to check permissions.
2435 Return 0 if not found, otherwise return its name, allocated with malloc. */
2438 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2442 const char *const file_suffix
=
2443 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2444 struct prefix_list
*pl
;
2445 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2446 const char *multilib_name
, *multilib_os_name
;
2448 #ifdef DEFAULT_ASSEMBLER
2449 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2450 return xstrdup (DEFAULT_ASSEMBLER
);
2453 #ifdef DEFAULT_LINKER
2454 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2455 return xstrdup (DEFAULT_LINKER
);
2459 len
+= strlen (machine_suffix
);
2461 multilib_name
= name
;
2462 multilib_os_name
= name
;
2463 if (multilib
&& multilib_os_dir
)
2465 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2466 int len2
= strlen (multilib_os_dir
) + 1;
2468 len
+= len1
> len2
? len1
: len2
;
2470 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2472 if (strcmp (multilib_os_dir
, ".") != 0)
2473 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2477 temp
= xmalloc (len
);
2479 /* Determine the filename to execute (special case for absolute paths). */
2481 if (IS_ABSOLUTE_PATH (name
))
2483 if (access (name
, mode
) == 0)
2485 strcpy (temp
, name
);
2490 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2492 const char *this_name
2493 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2497 /* Some systems have a suffix for executable files.
2498 So try appending that first. */
2499 if (file_suffix
[0] != 0)
2501 strcpy (temp
, pl
->prefix
);
2502 strcat (temp
, machine_suffix
);
2503 strcat (temp
, multilib_name
);
2504 strcat (temp
, file_suffix
);
2505 if (access_check (temp
, mode
) == 0)
2509 /* Now try just the multilib_name. */
2510 strcpy (temp
, pl
->prefix
);
2511 strcat (temp
, machine_suffix
);
2512 strcat (temp
, multilib_name
);
2513 if (access_check (temp
, mode
) == 0)
2517 /* Certain prefixes are tried with just the machine type,
2518 not the version. This is used for finding as, ld, etc. */
2519 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2521 /* Some systems have a suffix for executable files.
2522 So try appending that first. */
2523 if (file_suffix
[0] != 0)
2525 strcpy (temp
, pl
->prefix
);
2526 strcat (temp
, just_machine_suffix
);
2527 strcat (temp
, multilib_name
);
2528 strcat (temp
, file_suffix
);
2529 if (access_check (temp
, mode
) == 0)
2533 strcpy (temp
, pl
->prefix
);
2534 strcat (temp
, just_machine_suffix
);
2535 strcat (temp
, multilib_name
);
2536 if (access_check (temp
, mode
) == 0)
2540 /* Certain prefixes can't be used without the machine suffix
2541 when the machine or version is explicitly specified. */
2542 if (! pl
->require_machine_suffix
)
2544 /* Some systems have a suffix for executable files.
2545 So try appending that first. */
2546 if (file_suffix
[0] != 0)
2548 strcpy (temp
, pl
->prefix
);
2549 strcat (temp
, this_name
);
2550 strcat (temp
, file_suffix
);
2551 if (access_check (temp
, mode
) == 0)
2555 strcpy (temp
, pl
->prefix
);
2556 strcat (temp
, this_name
);
2557 if (access_check (temp
, mode
) == 0)
2566 /* Ranking of prefixes in the sort list. -B prefixes are put before
2569 enum path_prefix_priority
2571 PREFIX_PRIORITY_B_OPT
,
2572 PREFIX_PRIORITY_LAST
2575 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2576 order according to PRIORITY. Within each PRIORITY, new entries are
2579 If WARN is nonzero, we will warn if no file is found
2580 through this prefix. WARN should point to an int
2581 which will be set to 1 if this entry is used.
2583 COMPONENT is the value to be passed to update_path.
2585 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2586 the complete value of machine_suffix.
2587 2 means try both machine_suffix and just_machine_suffix. */
2590 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2591 const char *component
, /* enum prefix_priority */ int priority
,
2592 int require_machine_suffix
, int os_multilib
)
2594 struct prefix_list
*pl
, **prev
;
2597 for (prev
= &pprefix
->plist
;
2598 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2599 prev
= &(*prev
)->next
)
2602 /* Keep track of the longest prefix. */
2604 prefix
= update_path (prefix
, component
);
2605 len
= strlen (prefix
);
2606 if (len
> pprefix
->max_len
)
2607 pprefix
->max_len
= len
;
2609 pl
= xmalloc (sizeof (struct prefix_list
));
2610 pl
->prefix
= prefix
;
2611 pl
->require_machine_suffix
= require_machine_suffix
;
2612 pl
->priority
= priority
;
2613 pl
->os_multilib
= os_multilib
;
2615 /* Insert after PREV. */
2620 /* Same as add_prefix, but prepending target_system_root to prefix. */
2622 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2623 const char *component
,
2624 /* enum prefix_priority */ int priority
,
2625 int require_machine_suffix
, int os_multilib
)
2627 if (!IS_ABSOLUTE_PATH (prefix
))
2630 if (target_system_root
)
2632 if (target_sysroot_suffix
)
2633 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2634 prefix
= concat (target_system_root
, prefix
, NULL
);
2636 /* We have to override this because GCC's notion of sysroot
2637 moves along with GCC. */
2641 add_prefix (pprefix
, prefix
, component
, priority
,
2642 require_machine_suffix
, os_multilib
);
2645 /* Execute the command specified by the arguments on the current line of spec.
2646 When using pipes, this includes several piped-together commands
2647 with `|' between them.
2649 Return 0 if successful, -1 if failed. */
2655 int n_commands
; /* # of command. */
2659 const char *prog
; /* program name. */
2660 const char **argv
; /* vector of args. */
2661 int pid
; /* pid of process for this command. */
2664 struct command
*commands
; /* each command buffer with above info. */
2666 if (processing_spec_function
)
2669 /* Count # of piped commands. */
2670 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2671 if (strcmp (argbuf
[i
], "|") == 0)
2674 /* Get storage for each command. */
2675 commands
= alloca (n_commands
* sizeof (struct command
));
2677 /* Split argbuf into its separate piped processes,
2678 and record info about each one.
2679 Also search for the programs that are to be run. */
2681 commands
[0].prog
= argbuf
[0]; /* first command. */
2682 commands
[0].argv
= &argbuf
[0];
2683 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2686 commands
[0].argv
[0] = string
;
2688 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2689 if (strcmp (argbuf
[i
], "|") == 0)
2690 { /* each command. */
2691 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2692 fatal ("-pipe not supported");
2694 argbuf
[i
] = 0; /* termination of command args. */
2695 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2696 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2697 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2700 commands
[n_commands
].argv
[0] = string
;
2704 argbuf
[argbuf_index
] = 0;
2706 /* If -v, print what we are about to do, and maybe query. */
2710 /* For help listings, put a blank line between sub-processes. */
2711 if (print_help_list
)
2712 fputc ('\n', stderr
);
2714 /* Print each piped command as a separate line. */
2715 for (i
= 0; i
< n_commands
; i
++)
2717 const char *const *j
;
2719 if (verbose_only_flag
)
2721 for (j
= commands
[i
].argv
; *j
; j
++)
2724 fprintf (stderr
, " \"");
2725 for (p
= *j
; *p
; ++p
)
2727 if (*p
== '"' || *p
== '\\' || *p
== '$')
2728 fputc ('\\', stderr
);
2731 fputc ('"', stderr
);
2735 for (j
= commands
[i
].argv
; *j
; j
++)
2736 fprintf (stderr
, " %s", *j
);
2738 /* Print a pipe symbol after all but the last command. */
2739 if (i
+ 1 != n_commands
)
2740 fprintf (stderr
, " |");
2741 fprintf (stderr
, "\n");
2744 if (verbose_only_flag
!= 0)
2746 /* verbose_only_flag should act as if the spec was
2747 executed, so increment execution_count before
2748 returning. This prevents spurious warnings about
2749 unused linker input files, etc. */
2754 notice ("\nGo ahead? (y or n) ");
2758 while (getchar () != '\n')
2761 if (i
!= 'y' && i
!= 'Y')
2766 #ifdef ENABLE_VALGRIND_CHECKING
2767 /* Run the each command through valgrind. To simplify prepending the
2768 path to valgrind and the option "-q" (for quiet operation unless
2769 something triggers), we allocate a separate argv array. */
2771 for (i
= 0; i
< n_commands
; i
++)
2777 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2780 argv
= alloca ((argc
+ 3) * sizeof (char *));
2782 argv
[0] = VALGRIND_PATH
;
2784 for (j
= 2; j
< argc
+ 2; j
++)
2785 argv
[j
] = commands
[i
].argv
[j
- 2];
2788 commands
[i
].argv
= argv
;
2789 commands
[i
].prog
= argv
[0];
2793 /* Run each piped subprocess. */
2795 for (i
= 0; i
< n_commands
; i
++)
2797 char *errmsg_fmt
, *errmsg_arg
;
2798 const char *string
= commands
[i
].argv
[0];
2800 /* For some bizarre reason, the second argument of execvp() is
2801 char *const *, not const char *const *. */
2802 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2803 programname
, temp_filename
,
2804 &errmsg_fmt
, &errmsg_arg
,
2805 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2806 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2807 | (string
== commands
[i
].prog
2808 ? PEXECUTE_SEARCH
: 0)
2809 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2811 if (commands
[i
].pid
== -1)
2812 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2814 if (string
!= commands
[i
].prog
)
2815 free ((void *) string
);
2820 /* Wait for all the subprocesses to finish.
2821 We don't care what order they finish in;
2822 we know that N_COMMANDS waits will get them all.
2823 Ignore subprocesses that we don't know about,
2824 since they can be spawned by the process that exec'ed us. */
2828 #ifdef HAVE_GETRUSAGE
2830 double ut
= 0.0, st
= 0.0;
2833 for (i
= 0; i
< n_commands
;)
2839 pid
= pwait (commands
[i
].pid
, &status
, 0);
2843 #ifdef HAVE_GETRUSAGE
2846 /* getrusage returns the total resource usage of all children
2847 up to now. Copy the previous values into prus, get the
2848 current statistics, then take the difference. */
2851 getrusage (RUSAGE_CHILDREN
, &rus
);
2852 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2853 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2854 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2856 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2857 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2858 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2862 for (j
= 0; j
< n_commands
; j
++)
2863 if (commands
[j
].pid
== pid
)
2866 if (WIFSIGNALED (status
))
2869 /* SIGPIPE is a special case. It happens in -pipe mode
2870 when the compiler dies before the preprocessor is
2871 done, or the assembler dies before the compiler is
2872 done. There's generally been an error already, and
2873 this is just fallout. So don't generate another error
2874 unless we would otherwise have succeeded. */
2875 if (WTERMSIG (status
) == SIGPIPE
2876 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2881 Internal error: %s (program %s)\n\
2882 Please submit a full bug report.\n\
2883 See %s for instructions.",
2884 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2889 else if (WIFEXITED (status
)
2890 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2892 if (WEXITSTATUS (status
) > greatest_status
)
2893 greatest_status
= WEXITSTATUS (status
);
2896 #ifdef HAVE_GETRUSAGE
2897 if (report_times
&& ut
+ st
!= 0)
2898 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2907 /* Find all the switches given to us
2908 and make a vector describing them.
2909 The elements of the vector are strings, one per switch given.
2910 If a switch uses following arguments, then the `part1' field
2911 is the switch itself and the `args' field
2912 is a null-terminated vector containing the following arguments.
2913 The `live_cond' field is:
2915 1 if the switch is true in a conditional spec,
2916 -1 if false (overridden by a later switch)
2917 -2 if this switch should be ignored (used in %<S)
2918 The `validated' field is nonzero if any spec has looked at this switch;
2919 if it remains zero at the end of the run, it must be meaningless. */
2922 #define SWITCH_FALSE -1
2923 #define SWITCH_IGNORE -2
2924 #define SWITCH_LIVE 1
2931 unsigned char validated
;
2932 unsigned char ordering
;
2935 static struct switchstr
*switches
;
2937 static int n_switches
;
2942 const char *language
;
2943 struct compiler
*incompiler
;
2948 /* Also a vector of input files specified. */
2950 static struct infile
*infiles
;
2954 /* True if multiple input files are being compiled to a single
2957 static bool combine_inputs
;
2959 /* This counts the number of libraries added by lang_specific_driver, so that
2960 we can tell if there were any user supplied any files or libraries. */
2962 static int added_libraries
;
2964 /* And a vector of corresponding output files is made up later. */
2966 const char **outfiles
;
2968 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2970 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2971 is true if we should look for an executable suffix. DO_OBJ
2972 is true if we should look for an object suffix. */
2975 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2976 int do_obj ATTRIBUTE_UNUSED
)
2978 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2986 len
= strlen (name
);
2988 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2989 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2990 if (do_obj
&& len
> 2
2991 && name
[len
- 2] == '.'
2992 && name
[len
- 1] == 'o')
2994 obstack_grow (&obstack
, name
, len
- 2);
2995 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2996 name
= obstack_finish (&obstack
);
3000 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3001 /* If there is no filetype, make it the executable suffix (which includes
3002 the "."). But don't get confused if we have just "-o". */
3003 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3006 for (i
= len
- 1; i
>= 0; i
--)
3007 if (IS_DIR_SEPARATOR (name
[i
]))
3010 for (i
++; i
< len
; i
++)
3014 obstack_grow (&obstack
, name
, len
);
3015 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3016 strlen (TARGET_EXECUTABLE_SUFFIX
));
3017 name
= obstack_finish (&obstack
);
3024 /* Display the command line switches accepted by gcc. */
3028 printf (_("Usage: %s [options] file...\n"), programname
);
3029 fputs (_("Options:\n"), stdout
);
3031 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3032 fputs (_(" --help Display this information\n"), stdout
);
3033 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3035 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3036 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3037 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3038 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3039 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3040 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3041 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3042 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3043 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3045 -print-multi-lib Display the mapping between command line options and\n\
3046 multiple library search directories\n"), stdout
);
3047 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3048 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3049 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3050 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3051 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3052 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3053 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3054 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3055 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3056 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3057 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3058 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3059 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3060 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3061 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3062 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3063 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3064 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3065 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3066 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3067 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3068 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3070 -x <language> Specify the language of the following input files\n\
3071 Permissible languages include: c c++ assembler none\n\
3072 'none' means revert to the default behavior of\n\
3073 guessing the language based on the file's extension\n\
3077 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3078 passed on to the various sub-processes invoked by %s. In order to pass\n\
3079 other options on to these processes the -W<letter> options must be used.\n\
3082 /* The rest of the options are displayed by invocations of the various
3087 add_preprocessor_option (const char *option
, int len
)
3089 n_preprocessor_options
++;
3091 if (! preprocessor_options
)
3092 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3094 preprocessor_options
= xrealloc (preprocessor_options
,
3095 n_preprocessor_options
* sizeof (char *));
3097 preprocessor_options
[n_preprocessor_options
- 1] =
3098 save_string (option
, len
);
3102 add_assembler_option (const char *option
, int len
)
3104 n_assembler_options
++;
3106 if (! assembler_options
)
3107 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3109 assembler_options
= xrealloc (assembler_options
,
3110 n_assembler_options
* sizeof (char *));
3112 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3116 add_linker_option (const char *option
, int len
)
3120 if (! linker_options
)
3121 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3123 linker_options
= xrealloc (linker_options
,
3124 n_linker_options
* sizeof (char *));
3126 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3129 /* Create the vector `switches' and its contents.
3130 Store its length in `n_switches'. */
3133 process_command (int argc
, const char **argv
)
3138 const char *spec_lang
= 0;
3139 int last_language_n_infiles
;
3141 int lang_n_infiles
= 0;
3142 #ifdef MODIFY_TARGET_NAME
3143 int is_modify_target_name
;
3147 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3151 added_libraries
= 0;
3153 /* Figure compiler version from version string. */
3155 compiler_version
= temp1
= xstrdup (version_string
);
3157 for (; *temp1
; ++temp1
)
3166 /* If there is a -V or -b option (or both), process it now, before
3167 trying to interpret the rest of the command line. */
3168 if (argc
> 1 && argv
[1][0] == '-'
3169 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3171 const char *new_version
= DEFAULT_TARGET_VERSION
;
3172 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3173 const char *progname
= argv
[0];
3178 while (argc
> 1 && argv
[1][0] == '-'
3179 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3181 char opt
= argv
[1][1];
3183 if (argv
[1][2] != '\0')
3196 fatal ("`-%c' option must have argument", opt
);
3203 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3204 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3206 new_argv0
= xmemdup (progname
, baselen
,
3207 baselen
+ concat_length (new_version
, new_machine
,
3208 "-gcc-", NULL
) + 1);
3209 strcpy (new_argv0
+ baselen
, new_machine
);
3210 strcat (new_argv0
, "-gcc-");
3211 strcat (new_argv0
, new_version
);
3213 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3214 (argc
+ 1) * sizeof (argv
[0]));
3215 new_argv
[0] = new_argv0
;
3217 execvp (new_argv0
, new_argv
);
3218 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3221 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3222 see if we can create it from the pathname specified in argv[0]. */
3224 gcc_libexec_prefix
= standard_libexec_prefix
;
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 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3232 standard_bindir_prefix
,
3233 standard_libexec_prefix
);
3234 if (gcc_exec_prefix
)
3235 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3238 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3239 standard_exec_prefix
,
3240 standard_libexec_prefix
);
3244 if (gcc_exec_prefix
)
3246 int len
= strlen (gcc_exec_prefix
);
3248 if (len
> (int) sizeof ("/lib/gcc/") - 1
3249 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3251 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3252 if (IS_DIR_SEPARATOR (*temp
)
3253 && strncmp (temp
+ 1, "lib", 3) == 0
3254 && IS_DIR_SEPARATOR (temp
[4])
3255 && strncmp (temp
+ 5, "gcc", 3) == 0)
3256 len
-= sizeof ("/lib/gcc/") - 1;
3259 set_std_prefix (gcc_exec_prefix
, len
);
3260 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3261 PREFIX_PRIORITY_LAST
, 0, 0);
3262 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3263 PREFIX_PRIORITY_LAST
, 0, 0);
3266 /* COMPILER_PATH and LIBRARY_PATH have values
3267 that are lists of directory names with colons. */
3269 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3272 const char *startp
, *endp
;
3273 char *nstore
= alloca (strlen (temp
) + 3);
3275 startp
= endp
= temp
;
3278 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3280 strncpy (nstore
, startp
, endp
- startp
);
3282 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3283 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3285 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3286 nstore
[endp
- startp
+ 1] = 0;
3289 nstore
[endp
- startp
] = 0;
3290 add_prefix (&exec_prefixes
, nstore
, 0,
3291 PREFIX_PRIORITY_LAST
, 0, 0);
3292 add_prefix (&include_prefixes
, nstore
, 0,
3293 PREFIX_PRIORITY_LAST
, 0, 0);
3296 endp
= startp
= endp
+ 1;
3303 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3304 if (temp
&& *cross_compile
== '0')
3306 const char *startp
, *endp
;
3307 char *nstore
= alloca (strlen (temp
) + 3);
3309 startp
= endp
= temp
;
3312 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3314 strncpy (nstore
, startp
, endp
- startp
);
3316 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3317 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3319 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3320 nstore
[endp
- startp
+ 1] = 0;
3323 nstore
[endp
- startp
] = 0;
3324 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3325 PREFIX_PRIORITY_LAST
, 0, 1);
3328 endp
= startp
= endp
+ 1;
3335 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3336 GET_ENVIRONMENT (temp
, "LPATH");
3337 if (temp
&& *cross_compile
== '0')
3339 const char *startp
, *endp
;
3340 char *nstore
= alloca (strlen (temp
) + 3);
3342 startp
= endp
= temp
;
3345 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3347 strncpy (nstore
, startp
, endp
- startp
);
3349 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3350 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3352 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3353 nstore
[endp
- startp
+ 1] = 0;
3356 nstore
[endp
- startp
] = 0;
3357 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3358 PREFIX_PRIORITY_LAST
, 0, 1);
3361 endp
= startp
= endp
+ 1;
3368 /* Convert new-style -- options to old-style. */
3369 translate_options (&argc
, (const char *const **) &argv
);
3371 /* Do language-specific adjustment/addition of flags. */
3372 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3374 /* Scan argv twice. Here, the first time, just count how many switches
3375 there will be in their vector, and how many input files in theirs.
3376 Here we also parse the switches that cc itself uses (e.g. -v). */
3378 for (i
= 1; i
< argc
; i
++)
3380 if (! strcmp (argv
[i
], "-dumpspecs"))
3382 struct spec_list
*sl
;
3384 for (sl
= specs
; sl
; sl
= sl
->next
)
3385 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3386 if (link_command_spec
)
3387 printf ("*link_command:\n%s\n\n", link_command_spec
);
3390 else if (! strcmp (argv
[i
], "-dumpversion"))
3392 printf ("%s\n", spec_version
);
3395 else if (! strcmp (argv
[i
], "-dumpmachine"))
3397 printf ("%s\n", spec_machine
);
3400 else if (strcmp (argv
[i
], "-fversion") == 0)
3402 /* translate_options () has turned --version into -fversion. */
3403 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3404 printf ("Copyright %s 2004 Free Software Foundation, Inc.\n",
3406 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3407 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3411 else if (strcmp (argv
[i
], "-fhelp") == 0)
3413 /* translate_options () has turned --help into -fhelp. */
3414 print_help_list
= 1;
3416 /* We will be passing a dummy file on to the sub-processes. */
3420 /* CPP driver cannot obtain switch from cc1_options. */
3422 add_preprocessor_option ("--help", 6);
3423 add_assembler_option ("--help", 6);
3424 add_linker_option ("--help", 6);
3426 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3428 /* translate_options() has turned --target-help into -ftarget-help. */
3429 target_help_flag
= 1;
3431 /* We will be passing a dummy file on to the sub-processes. */
3435 /* CPP driver cannot obtain switch from cc1_options. */
3437 add_preprocessor_option ("--target-help", 13);
3438 add_assembler_option ("--target-help", 13);
3439 add_linker_option ("--target-help", 13);
3441 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3443 pass_exit_codes
= 1;
3446 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3447 print_search_dirs
= 1;
3448 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3449 print_file_name
= "libgcc.a";
3450 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3451 print_file_name
= argv
[i
] + 17;
3452 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3453 print_prog_name
= argv
[i
] + 17;
3454 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3455 print_multi_lib
= 1;
3456 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3457 print_multi_directory
= 1;
3458 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3459 print_multi_os_directory
= 1;
3460 else if (! strncmp (argv
[i
], "-Wa,", 4))
3463 /* Pass the rest of this option to the assembler. */
3465 /* Split the argument at commas. */
3467 for (j
= 4; argv
[i
][j
]; j
++)
3468 if (argv
[i
][j
] == ',')
3470 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3474 /* Record the part after the last comma. */
3475 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3477 else if (! strncmp (argv
[i
], "-Wp,", 4))
3480 /* Pass the rest of this option to the preprocessor. */
3482 /* Split the argument at commas. */
3484 for (j
= 4; argv
[i
][j
]; j
++)
3485 if (argv
[i
][j
] == ',')
3487 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3491 /* Record the part after the last comma. */
3492 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3494 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3495 /* The +e options to the C++ front-end. */
3497 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3500 /* Split the argument at commas. */
3501 for (j
= 3; argv
[i
][j
]; j
++)
3502 n_infiles
+= (argv
[i
][j
] == ',');
3504 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3507 fatal ("argument to `-Xlinker' is missing");
3512 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3515 fatal ("argument to `-Xpreprocessor' is missing");
3517 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3519 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3522 fatal ("argument to `-Xassembler' is missing");
3524 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3526 else if (strcmp (argv
[i
], "-l") == 0)
3529 fatal ("argument to `-l' is missing");
3534 else if (strncmp (argv
[i
], "-l", 2) == 0)
3536 else if (strcmp (argv
[i
], "-save-temps") == 0)
3538 save_temps_flag
= 1;
3541 else if (strcmp (argv
[i
], "-combine") == 0)
3546 else if (strcmp (argv
[i
], "-specs") == 0)
3548 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3550 fatal ("argument to `-specs' is missing");
3552 user
->next
= (struct user_specs
*) 0;
3553 user
->filename
= argv
[i
];
3554 if (user_specs_tail
)
3555 user_specs_tail
->next
= user
;
3557 user_specs_head
= user
;
3558 user_specs_tail
= user
;
3560 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3562 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3563 if (strlen (argv
[i
]) == 7)
3564 fatal ("argument to `-specs=' is missing");
3566 user
->next
= (struct user_specs
*) 0;
3567 user
->filename
= argv
[i
] + 7;
3568 if (user_specs_tail
)
3569 user_specs_tail
->next
= user
;
3571 user_specs_head
= user
;
3572 user_specs_tail
= user
;
3574 else if (strcmp (argv
[i
], "-time") == 0)
3576 else if (strcmp (argv
[i
], "-pipe") == 0)
3578 /* -pipe has to go into the switches array as well as
3583 else if (strcmp (argv
[i
], "-###") == 0)
3585 /* This is similar to -v except that there is no execution
3586 of the commands and the echoed arguments are quoted. It
3587 is intended for use in shell scripts to capture the
3588 driver-generated command line. */
3589 verbose_only_flag
++;
3592 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3594 const char *p
= &argv
[i
][1];
3601 fatal ("`-%c' must come at the start of the command line", c
);
3609 if (p
[1] == 0 && i
+ 1 == argc
)
3610 fatal ("argument to `-B' is missing");
3616 len
= strlen (value
);
3618 /* Catch the case where the user has forgotten to append a
3619 directory separator to the path. Note, they may be using
3620 -B to add an executable name prefix, eg "i386-elf-", in
3621 order to distinguish between multiple installations of
3622 GCC in the same directory. Hence we must check to see
3623 if appending a directory separator actually makes a
3624 valid directory name. */
3625 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3626 && is_directory (value
, "", 0))
3628 char *tmp
= xmalloc (len
+ 2);
3629 strcpy (tmp
, value
);
3630 tmp
[len
] = DIR_SEPARATOR
;
3635 /* As a kludge, if the arg is "[foo/]stageN/", just
3636 add "[foo/]include" to the include prefix. */
3639 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3640 && strncmp (value
+ len
- 7, "stage", 5) == 0
3641 && ISDIGIT (value
[len
- 2])
3642 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3645 add_prefix (&include_prefixes
, "./", NULL
,
3646 PREFIX_PRIORITY_B_OPT
, 0, 0);
3649 char *string
= xmalloc (len
- 6);
3650 memcpy (string
, value
, len
- 7);
3651 string
[len
- 7] = 0;
3652 add_prefix (&include_prefixes
, string
, NULL
,
3653 PREFIX_PRIORITY_B_OPT
, 0, 0);
3657 add_prefix (&exec_prefixes
, value
, NULL
,
3658 PREFIX_PRIORITY_B_OPT
, 0, 0);
3659 add_prefix (&startfile_prefixes
, value
, NULL
,
3660 PREFIX_PRIORITY_B_OPT
, 0, 0);
3661 add_prefix (&include_prefixes
, value
, NULL
,
3662 PREFIX_PRIORITY_B_OPT
, 0, 0);
3667 case 'v': /* Print our subcommands and print versions. */
3669 /* If they do anything other than exactly `-v', don't set
3670 verbose_flag; rather, continue on to give the error. */
3687 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3692 /* Forward scan, just in case -S or -c is specified
3699 if (argv
[j
][0] == '-')
3701 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3707 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3708 j
+= skip
- (argv
[j
][2] != 0);
3709 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3716 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3718 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3720 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3727 #ifdef MODIFY_TARGET_NAME
3728 is_modify_target_name
= 0;
3730 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3731 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3733 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3734 + strlen (spec_machine
));
3737 int made_addition
= 0;
3739 is_modify_target_name
= 1;
3740 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3742 if (modify_target
[j
].add_del
== DELETE
3743 && (! strncmp (q
, modify_target
[j
].str
,
3744 strlen (modify_target
[j
].str
))))
3745 p
+= strlen (modify_target
[j
].str
);
3746 else if (modify_target
[j
].add_del
== ADD
3747 && ! made_addition
&& *p
== '-')
3749 for (r
= modify_target
[j
].str
; *r
!= 0; )
3757 spec_machine
= new_name
;
3760 if (is_modify_target_name
)
3766 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3767 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3768 else if (WORD_SWITCH_TAKES_ARG (p
))
3769 i
+= WORD_SWITCH_TAKES_ARG (p
);
3779 if ((save_temps_flag
|| report_times
) && use_pipes
)
3781 /* -save-temps overrides -pipe, so that temp files are produced */
3782 if (save_temps_flag
)
3783 error ("warning: -pipe ignored because -save-temps specified");
3784 /* -time overrides -pipe because we can't get correct stats when
3785 multiple children are running at once. */
3786 else if (report_times
)
3787 error ("warning: -pipe ignored because -time specified");
3792 /* Set up the search paths before we go looking for config files. */
3794 /* These come before the md prefixes so that we will find gcc's subcommands
3795 (such as cpp) rather than those of the host system. */
3796 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3797 as well as trying the machine and the version. */
3799 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3800 PREFIX_PRIORITY_LAST
, 1, 0);
3801 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3802 PREFIX_PRIORITY_LAST
, 2, 0);
3803 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3804 PREFIX_PRIORITY_LAST
, 2, 0);
3805 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3806 PREFIX_PRIORITY_LAST
, 2, 0);
3807 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3808 PREFIX_PRIORITY_LAST
, 2, 0);
3811 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3812 PREFIX_PRIORITY_LAST
, 1, 0);
3813 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3814 PREFIX_PRIORITY_LAST
, 1, 0);
3816 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3817 dir_separator_str
, NULL
);
3819 /* If tooldir is relative, base it on exec_prefixes. A relative
3820 tooldir lets us move the installed tree as a unit.
3822 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3823 directories, so that we can search both the user specified directory
3824 and the standard place. */
3826 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3828 if (gcc_exec_prefix
)
3830 char *gcc_exec_tooldir_prefix
3831 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3832 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3834 add_prefix (&exec_prefixes
,
3835 concat (gcc_exec_tooldir_prefix
, "bin",
3836 dir_separator_str
, NULL
),
3837 NULL
, PREFIX_PRIORITY_LAST
, 0, 0);
3838 add_prefix (&startfile_prefixes
,
3839 concat (gcc_exec_tooldir_prefix
, "lib",
3840 dir_separator_str
, NULL
),
3841 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
3844 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3845 dir_separator_str
, spec_version
,
3846 dir_separator_str
, tooldir_prefix
, NULL
);
3849 add_prefix (&exec_prefixes
,
3850 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3851 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3852 add_prefix (&startfile_prefixes
,
3853 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3854 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3856 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3857 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3858 then consider it to relocate with the rest of the GCC installation
3859 if GCC_EXEC_PREFIX is set.
3860 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3861 if (target_system_root
&& gcc_exec_prefix
)
3863 char *tmp_prefix
= make_relative_prefix (argv
[0],
3864 standard_bindir_prefix
,
3865 target_system_root
);
3866 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3868 target_system_root
= tmp_prefix
;
3869 target_system_root_changed
= 1;
3874 /* More prefixes are enabled in main, after we read the specs file
3875 and determine whether this is cross-compilation or not. */
3877 /* Then create the space for the vectors and scan again. */
3879 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3880 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3883 last_language_n_infiles
= -1;
3885 /* This, time, copy the text of each switch and store a pointer
3886 to the copy in the vector of switches.
3887 Store all the infiles in their vector. */
3889 for (i
= 1; i
< argc
; i
++)
3891 /* Just skip the switches that were handled by the preceding loop. */
3892 #ifdef MODIFY_TARGET_NAME
3893 is_modify_target_name
= 0;
3895 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3896 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3897 is_modify_target_name
= 1;
3899 if (is_modify_target_name
)
3903 if (! strncmp (argv
[i
], "-Wa,", 4))
3905 else if (! strncmp (argv
[i
], "-Wp,", 4))
3907 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3909 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3911 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3913 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3915 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3917 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3919 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3921 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3923 else if (! strcmp (argv
[i
], "-ftarget-help"))
3925 else if (! strcmp (argv
[i
], "-fhelp"))
3927 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3929 /* Compensate for the +e options to the C++ front-end;
3930 they're there simply for cfront call-compatibility. We do
3931 some magic in default_compilers to pass them down properly.
3932 Note we deliberately start at the `+' here, to avoid passing
3933 -e0 or -e1 down into the linker. */
3934 switches
[n_switches
].part1
= &argv
[i
][0];
3935 switches
[n_switches
].args
= 0;
3936 switches
[n_switches
].live_cond
= SWITCH_OK
;
3937 switches
[n_switches
].validated
= 0;
3940 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3943 /* Split the argument at commas. */
3945 for (j
= 4; argv
[i
][j
]; j
++)
3946 if (argv
[i
][j
] == ',')
3948 infiles
[n_infiles
].language
= "*";
3949 infiles
[n_infiles
++].name
3950 = save_string (argv
[i
] + prev
, j
- prev
);
3953 /* Record the part after the last comma. */
3954 infiles
[n_infiles
].language
= "*";
3955 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3957 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3959 infiles
[n_infiles
].language
= "*";
3960 infiles
[n_infiles
++].name
= argv
[++i
];
3962 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3964 infiles
[n_infiles
].language
= "*";
3965 infiles
[n_infiles
++].name
= argv
[++i
];
3967 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3969 infiles
[n_infiles
].language
= "*";
3970 infiles
[n_infiles
++].name
= argv
[++i
];
3972 else if (strcmp (argv
[i
], "-l") == 0)
3973 { /* POSIX allows separation of -l and the lib arg;
3974 canonicalize by concatenating -l with its arg */
3975 infiles
[n_infiles
].language
= "*";
3976 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3978 else if (strncmp (argv
[i
], "-l", 2) == 0)
3980 infiles
[n_infiles
].language
= "*";
3981 infiles
[n_infiles
++].name
= argv
[i
];
3983 else if (strcmp (argv
[i
], "-specs") == 0)
3985 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3987 else if (strcmp (argv
[i
], "-time") == 0)
3989 else if (strcmp (argv
[i
], "-###") == 0)
3991 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3993 const char *p
= &argv
[i
][1];
3998 if (p
[1] == 0 && i
+ 1 == argc
)
3999 fatal ("argument to `-x' is missing");
4001 spec_lang
= argv
[++i
];
4004 if (! strcmp (spec_lang
, "none"))
4005 /* Suppress the warning if -xnone comes after the last input
4006 file, because alternate command interfaces like g++ might
4007 find it useful to place -xnone after each input file. */
4010 last_language_n_infiles
= n_infiles
;
4013 switches
[n_switches
].part1
= p
;
4014 /* Deal with option arguments in separate argv elements. */
4015 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4016 || WORD_SWITCH_TAKES_ARG (p
))
4019 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4023 /* Count only the option arguments in separate argv elements. */
4024 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4026 if (i
+ n_args
>= argc
)
4027 fatal ("argument to `-%s' is missing", p
);
4028 switches
[n_switches
].args
4029 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4031 switches
[n_switches
].args
[j
++] = argv
[++i
];
4032 /* Null-terminate the vector. */
4033 switches
[n_switches
].args
[j
] = 0;
4035 else if (strchr (switches_need_spaces
, c
))
4037 /* On some systems, ld cannot handle some options without
4038 a space. So split the option from its argument. */
4039 char *part1
= xmalloc (2);
4043 switches
[n_switches
].part1
= part1
;
4044 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4045 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4046 switches
[n_switches
].args
[1] = 0;
4049 switches
[n_switches
].args
= 0;
4051 switches
[n_switches
].live_cond
= SWITCH_OK
;
4052 switches
[n_switches
].validated
= 0;
4053 switches
[n_switches
].ordering
= 0;
4054 /* These are always valid, since gcc.c itself understands them. */
4055 if (!strcmp (p
, "save-temps")
4056 || !strcmp (p
, "static-libgcc")
4057 || !strcmp (p
, "shared-libgcc")
4058 || !strcmp (p
, "pipe"))
4059 switches
[n_switches
].validated
= 1;
4062 char ch
= switches
[n_switches
].part1
[0];
4064 switches
[n_switches
].validated
= 1;
4070 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4071 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4074 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4076 perror_with_name (argv
[i
]);
4081 infiles
[n_infiles
].language
= spec_lang
;
4082 infiles
[n_infiles
++].name
= argv
[i
];
4087 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4088 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4090 /* Ensure we only invoke each subprocess once. */
4091 if (target_help_flag
|| print_help_list
)
4095 /* Create a dummy input file, so that we can pass --target-help on to
4096 the various sub-processes. */
4097 infiles
[0].language
= "c";
4098 infiles
[0].name
= "help-dummy";
4100 if (target_help_flag
)
4102 switches
[n_switches
].part1
= "--target-help";
4103 switches
[n_switches
].args
= 0;
4104 switches
[n_switches
].live_cond
= SWITCH_OK
;
4105 switches
[n_switches
].validated
= 0;
4110 if (print_help_list
)
4112 switches
[n_switches
].part1
= "--help";
4113 switches
[n_switches
].args
= 0;
4114 switches
[n_switches
].live_cond
= SWITCH_OK
;
4115 switches
[n_switches
].validated
= 0;
4121 switches
[n_switches
].part1
= 0;
4122 infiles
[n_infiles
].name
= 0;
4125 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4126 and place that in the environment. */
4129 set_collect_gcc_options (void)
4134 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4136 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4137 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4140 for (i
= 0; (int) i
< n_switches
; i
++)
4142 const char *const *args
;
4145 obstack_grow (&collect_obstack
, " ", 1);
4149 /* Ignore elided switches. */
4150 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4153 obstack_grow (&collect_obstack
, "'-", 2);
4154 q
= switches
[i
].part1
;
4155 while ((p
= strchr (q
, '\'')))
4157 obstack_grow (&collect_obstack
, q
, p
- q
);
4158 obstack_grow (&collect_obstack
, "'\\''", 4);
4161 obstack_grow (&collect_obstack
, q
, strlen (q
));
4162 obstack_grow (&collect_obstack
, "'", 1);
4164 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4166 obstack_grow (&collect_obstack
, " '", 2);
4168 while ((p
= strchr (q
, '\'')))
4170 obstack_grow (&collect_obstack
, q
, p
- q
);
4171 obstack_grow (&collect_obstack
, "'\\''", 4);
4174 obstack_grow (&collect_obstack
, q
, strlen (q
));
4175 obstack_grow (&collect_obstack
, "'", 1);
4178 obstack_grow (&collect_obstack
, "\0", 1);
4179 putenv (obstack_finish (&collect_obstack
));
4182 /* Process a spec string, accumulating and running commands. */
4184 /* These variables describe the input file name.
4185 input_file_number is the index on outfiles of this file,
4186 so that the output file name can be stored for later use by %o.
4187 input_basename is the start of the part of the input file
4188 sans all directory names, and basename_length is the number
4189 of characters starting there excluding the suffix .c or whatever. */
4191 static const char *input_filename
;
4192 static int input_file_number
;
4193 size_t input_filename_length
;
4194 static int basename_length
;
4195 static int suffixed_basename_length
;
4196 static const char *input_basename
;
4197 static const char *input_suffix
;
4198 static struct stat input_stat
;
4199 static int input_stat_set
;
4201 /* The compiler used to process the current input file. */
4202 static struct compiler
*input_file_compiler
;
4204 /* These are variables used within do_spec and do_spec_1. */
4206 /* Nonzero if an arg has been started and not yet terminated
4207 (with space, tab or newline). */
4208 static int arg_going
;
4210 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4211 is a temporary file name. */
4212 static int delete_this_arg
;
4214 /* Nonzero means %w has been seen; the next arg to be terminated
4215 is the output file name of this compilation. */
4216 static int this_is_output_file
;
4218 /* Nonzero means %s has been seen; the next arg to be terminated
4219 is the name of a library file and we should try the standard
4220 search dirs for it. */
4221 static int this_is_library_file
;
4223 /* Nonzero means that the input of this command is coming from a pipe. */
4224 static int input_from_pipe
;
4226 /* Nonnull means substitute this for any suffix when outputting a switches
4228 static const char *suffix_subst
;
4230 /* Process the spec SPEC and run the commands specified therein.
4231 Returns 0 if the spec is successfully processed; -1 if failed. */
4234 do_spec (const char *spec
)
4238 value
= do_spec_2 (spec
);
4240 /* Force out any unfinished command.
4241 If -pipe, this forces out the last command if it ended in `|'. */
4244 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4247 set_collect_gcc_options ();
4249 if (argbuf_index
> 0)
4257 do_spec_2 (const char *spec
)
4264 delete_this_arg
= 0;
4265 this_is_output_file
= 0;
4266 this_is_library_file
= 0;
4267 input_from_pipe
= 0;
4268 suffix_subst
= NULL
;
4270 result
= do_spec_1 (spec
, 0, NULL
);
4272 /* End any pending argument. */
4275 obstack_1grow (&obstack
, 0);
4276 string
= obstack_finish (&obstack
);
4277 if (this_is_library_file
)
4278 string
= find_file (string
);
4279 store_arg (string
, delete_this_arg
, this_is_output_file
);
4280 if (this_is_output_file
)
4281 outfiles
[input_file_number
] = string
;
4289 /* Process the given spec string and add any new options to the end
4290 of the switches/n_switches array. */
4293 do_option_spec (const char *name
, const char *spec
)
4295 unsigned int i
, value_count
, value_len
;
4296 const char *p
, *q
, *value
;
4297 char *tmp_spec
, *tmp_spec_p
;
4299 if (configure_default_options
[0].name
== NULL
)
4302 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4303 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4305 if (i
== ARRAY_SIZE (configure_default_options
))
4308 value
= configure_default_options
[i
].value
;
4309 value_len
= strlen (value
);
4311 /* Compute the size of the final spec. */
4314 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4320 /* Replace each %(VALUE) by the specified value. */
4321 tmp_spec
= alloca (strlen (spec
) + 1
4322 + value_count
* (value_len
- strlen ("%(VALUE)")));
4323 tmp_spec_p
= tmp_spec
;
4325 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4327 memcpy (tmp_spec_p
, q
, p
- q
);
4328 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4329 memcpy (tmp_spec_p
, value
, value_len
);
4330 tmp_spec_p
+= value_len
;
4331 q
= p
+ strlen ("%(VALUE)");
4333 strcpy (tmp_spec_p
, q
);
4335 do_self_spec (tmp_spec
);
4338 /* Process the given spec string and add any new options to the end
4339 of the switches/n_switches array. */
4342 do_self_spec (const char *spec
)
4345 do_spec_1 (" ", 0, NULL
);
4347 if (argbuf_index
> 0)
4352 n_switches
+= argbuf_index
;
4353 switches
= xrealloc (switches
,
4354 sizeof (struct switchstr
) * (n_switches
+ 1));
4356 switches
[n_switches
] = switches
[first
];
4357 for (i
= 0; i
< argbuf_index
; i
++)
4359 struct switchstr
*sw
;
4361 /* Each switch should start with '-'. */
4362 if (argbuf
[i
][0] != '-')
4365 sw
= &switches
[i
+ first
];
4366 sw
->part1
= &argbuf
[i
][1];
4368 sw
->live_cond
= SWITCH_OK
;
4376 do_spec_path (struct prefix_list
*pl
, const char *option
,
4377 int omit_if_relative
, int separate_options
,
4379 const char *dir_for_machine_suffix
,
4380 const char *dir_for_no_suffix
)
4382 static size_t bufsize
= 0;
4383 static char *buffer
;
4386 /* Used on systems which record the specified -L dirs
4387 and use them to search for dynamic linking. */
4388 /* Relative directories always come from -B,
4389 and it is better not to use them for searching
4390 at run time. In particular, stage1 loses. */
4391 if (omit_if_relative
4392 && !IS_ABSOLUTE_PATH (pl
->prefix
))
4395 /* Try subdirectory if there is one. */
4396 if (machine_suffix
&& dir_for_machine_suffix
)
4398 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4400 bufsize
= (strlen (pl
->prefix
)
4401 + strlen (machine_suffix
)) * 2 + 1;
4402 buffer
= xrealloc (buffer
, bufsize
);
4403 strcpy (buffer
, pl
->prefix
);
4404 strcat (buffer
, machine_suffix
);
4405 if (is_directory (buffer
, dir_for_machine_suffix
, 1))
4407 do_spec_1 (option
, separate_options
, NULL
);
4408 if (separate_options
)
4409 do_spec_1 (" ", 0, NULL
);
4410 do_spec_1 (buffer
, 1, NULL
);
4411 do_spec_1 (dir_for_machine_suffix
, 1, NULL
);
4412 /* Make this a separate argument. */
4413 do_spec_1 (" ", 0, NULL
);
4416 if (!pl
->require_machine_suffix
&& dir_for_no_suffix
)
4418 if (is_directory (pl
->prefix
, dir_for_no_suffix
, 1))
4420 do_spec_1 (option
, separate_options
, NULL
);
4421 if (separate_options
)
4422 do_spec_1 (" ", 0, NULL
);
4423 do_spec_1 (pl
->prefix
, 1, NULL
);
4424 do_spec_1 (dir_for_no_suffix
, 1, NULL
);
4425 /* Make this a separate argument. */
4426 do_spec_1 (" ", 0, NULL
);
4435 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4437 do_spec_1 (option
, separate_options
, NULL
);
4438 if (separate_options
)
4439 do_spec_1 (" ", 0, NULL
);
4440 do_spec_1 (pl
->prefix
, 1, NULL
);
4441 /* Remove slash from machine_suffix. */
4442 if (strlen (machine_suffix
) >= bufsize
)
4443 bufsize
= strlen (machine_suffix
) * 2 + 1;
4444 buffer
= xrealloc (buffer
, bufsize
);
4445 strcpy (buffer
, machine_suffix
);
4446 idx
= strlen (buffer
);
4447 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4448 buffer
[idx
- 1] = 0;
4449 do_spec_1 (buffer
, 1, NULL
);
4450 /* Make this a separate argument. */
4451 do_spec_1 (" ", 0, NULL
);
4454 if (!pl
->require_machine_suffix
)
4456 if (is_directory (pl
->prefix
, "", 1))
4458 do_spec_1 (option
, separate_options
, NULL
);
4459 if (separate_options
)
4460 do_spec_1 (" ", 0, NULL
);
4461 /* Remove slash from pl->prefix. */
4462 if (strlen (pl
->prefix
) >= bufsize
)
4463 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4464 buffer
= xrealloc (buffer
, bufsize
);
4465 strcpy (buffer
, pl
->prefix
);
4466 idx
= strlen (buffer
);
4467 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4468 buffer
[idx
- 1] = 0;
4469 do_spec_1 (buffer
, 1, NULL
);
4470 /* Make this a separate argument. */
4471 do_spec_1 (" ", 0, NULL
);
4476 /* Process the sub-spec SPEC as a portion of a larger spec.
4477 This is like processing a whole spec except that we do
4478 not initialize at the beginning and we do not supply a
4479 newline by default at the end.
4480 INSWITCH nonzero means don't process %-sequences in SPEC;
4481 in this case, % is treated as an ordinary character.
4482 This is used while substituting switches.
4483 INSWITCH nonzero also causes SPC not to terminate an argument.
4485 Value is zero unless a line was finished
4486 and the command on that line reported an error. */
4489 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4491 const char *p
= spec
;
4498 /* If substituting a switch, treat all chars like letters.
4499 Otherwise, NL, SPC, TAB and % are special. */
4500 switch (inswitch
? 'a' : c
)
4503 /* End of line: finish any pending argument,
4504 then run the pending command if one has been started. */
4507 obstack_1grow (&obstack
, 0);
4508 string
= obstack_finish (&obstack
);
4509 if (this_is_library_file
)
4510 string
= find_file (string
);
4511 store_arg (string
, delete_this_arg
, this_is_output_file
);
4512 if (this_is_output_file
)
4513 outfiles
[input_file_number
] = string
;
4517 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4519 /* A `|' before the newline means use a pipe here,
4520 but only if -pipe was specified.
4521 Otherwise, execute now and don't pass the `|' as an arg. */
4524 input_from_pipe
= 1;
4531 set_collect_gcc_options ();
4533 if (argbuf_index
> 0)
4539 /* Reinitialize for a new command, and for a new argument. */
4542 delete_this_arg
= 0;
4543 this_is_output_file
= 0;
4544 this_is_library_file
= 0;
4545 input_from_pipe
= 0;
4549 /* End any pending argument. */
4552 obstack_1grow (&obstack
, 0);
4553 string
= obstack_finish (&obstack
);
4554 if (this_is_library_file
)
4555 string
= find_file (string
);
4556 store_arg (string
, delete_this_arg
, this_is_output_file
);
4557 if (this_is_output_file
)
4558 outfiles
[input_file_number
] = string
;
4562 obstack_1grow (&obstack
, c
);
4568 /* Space or tab ends an argument if one is pending. */
4571 obstack_1grow (&obstack
, 0);
4572 string
= obstack_finish (&obstack
);
4573 if (this_is_library_file
)
4574 string
= find_file (string
);
4575 store_arg (string
, delete_this_arg
, this_is_output_file
);
4576 if (this_is_output_file
)
4577 outfiles
[input_file_number
] = string
;
4579 /* Reinitialize for a new argument. */
4581 delete_this_arg
= 0;
4582 this_is_output_file
= 0;
4583 this_is_library_file
= 0;
4590 fatal ("invalid specification! Bug in cc");
4593 obstack_grow (&obstack
, input_basename
, basename_length
);
4598 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4603 delete_this_arg
= 2;
4606 /* Dump out the directories specified with LIBRARY_PATH,
4607 followed by the absolute directories
4608 that we search for startfiles. */
4611 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4613 for (; pl
; pl
= pl
->next
)
4615 const char *no_suffix_multilib_dir
;
4617 no_suffix_multilib_dir
= pl
->os_multilib
? multilib_os_dir
4619 /* Do not separate options, include non-multilibbed variant. */
4620 do_spec_path (pl
, "-L",
4621 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4626 0, 0, multilib_dir
, no_suffix_multilib_dir
);
4632 /* %efoo means report an error with `foo' as error message
4633 and don't execute any more commands for this file. */
4637 while (*p
!= 0 && *p
!= '\n')
4639 buf
= alloca (p
- q
+ 1);
4640 strncpy (buf
, q
, p
- q
);
4647 /* %nfoo means report a notice with `foo' on stderr. */
4651 while (*p
!= 0 && *p
!= '\n')
4653 buf
= alloca (p
- q
+ 1);
4654 strncpy (buf
, q
, p
- q
);
4656 notice ("%s\n", buf
);
4666 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4667 defined, and it is not a directory, and it is
4668 writable, use it. Otherwise, treat this like any
4669 other temporary file. */
4671 if ((!save_temps_flag
)
4672 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4673 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4675 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4676 strlen (HOST_BIT_BUCKET
));
4677 delete_this_arg
= 0;
4682 goto create_temp_file
;
4686 obstack_1grow (&obstack
, '-');
4687 delete_this_arg
= 0;
4690 /* consume suffix */
4691 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4693 if (p
[0] == '%' && p
[1] == 'O')
4698 goto create_temp_file
;
4702 /* consume suffix */
4703 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4705 if (p
[0] == '%' && p
[1] == 'O')
4710 goto create_temp_file
;
4716 struct temp_name
*t
;
4718 const char *suffix
= p
;
4719 char *saved_suffix
= NULL
;
4721 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4723 suffix_length
= p
- suffix
;
4724 if (p
[0] == '%' && p
[1] == 'O')
4727 /* We don't support extra suffix characters after %O. */
4728 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4730 if (suffix_length
== 0)
4731 suffix
= TARGET_OBJECT_SUFFIX
;
4735 = xmalloc (suffix_length
4736 + strlen (TARGET_OBJECT_SUFFIX
));
4737 strncpy (saved_suffix
, suffix
, suffix_length
);
4738 strcpy (saved_suffix
+ suffix_length
,
4739 TARGET_OBJECT_SUFFIX
);
4741 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4744 /* If the input_filename has the same suffix specified
4745 for the %g, %u, or %U, and -save-temps is specified,
4746 we could end up using that file as an intermediate
4747 thus clobbering the user's source file (.e.g.,
4748 gcc -save-temps foo.s would clobber foo.s with the
4749 output of cpp0). So check for this condition and
4750 generate a temp file as the intermediate. */
4752 if (save_temps_flag
)
4754 temp_filename_length
= basename_length
+ suffix_length
;
4755 temp_filename
= alloca (temp_filename_length
+ 1);
4756 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4757 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4759 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4760 if (strcmp (temp_filename
, input_filename
) != 0)
4762 struct stat st_temp
;
4764 /* Note, set_input() resets input_stat_set to 0. */
4765 if (input_stat_set
== 0)
4767 input_stat_set
= stat (input_filename
, &input_stat
);
4768 if (input_stat_set
>= 0)
4772 /* If we have the stat for the input_filename
4773 and we can do the stat for the temp_filename
4774 then the they could still refer to the same
4775 file if st_dev/st_ino's are the same. */
4777 if (input_stat_set
!= 1
4778 || stat (temp_filename
, &st_temp
) < 0
4779 || input_stat
.st_dev
!= st_temp
.st_dev
4780 || input_stat
.st_ino
!= st_temp
.st_ino
)
4782 temp_filename
= save_string (temp_filename
,
4783 temp_filename_length
+ 1);
4784 obstack_grow (&obstack
, temp_filename
,
4785 temp_filename_length
);
4787 delete_this_arg
= 0;
4793 /* See if we already have an association of %g/%u/%U and
4795 for (t
= temp_names
; t
; t
= t
->next
)
4796 if (t
->length
== suffix_length
4797 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4798 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4801 /* Make a new association if needed. %u and %j
4803 if (t
== 0 || c
== 'u' || c
== 'j')
4807 t
= xmalloc (sizeof (struct temp_name
));
4808 t
->next
= temp_names
;
4811 t
->length
= suffix_length
;
4814 t
->suffix
= saved_suffix
;
4815 saved_suffix
= NULL
;
4818 t
->suffix
= save_string (suffix
, suffix_length
);
4819 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4820 temp_filename
= make_temp_file (t
->suffix
);
4821 temp_filename_length
= strlen (temp_filename
);
4822 t
->filename
= temp_filename
;
4823 t
->filename_length
= temp_filename_length
;
4827 free (saved_suffix
);
4829 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4830 delete_this_arg
= 1;
4838 for (i
= 0; (int) i
< n_infiles
; i
++)
4839 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4840 if (infiles
[i
].incompiler
== input_file_compiler
)
4842 store_arg (infiles
[i
].name
, 0, 0);
4843 infiles
[i
].compiled
= true;
4848 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4855 struct prefix_list
*pl
= include_prefixes
.plist
;
4857 if (gcc_exec_prefix
)
4859 do_spec_1 ("-iprefix", 1, NULL
);
4860 /* Make this a separate argument. */
4861 do_spec_1 (" ", 0, NULL
);
4862 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4863 do_spec_1 (" ", 0, NULL
);
4866 if (target_system_root_changed
||
4867 (target_system_root
&& target_sysroot_hdrs_suffix
))
4869 do_spec_1 ("-isysroot", 1, NULL
);
4870 /* Make this a separate argument. */
4871 do_spec_1 (" ", 0, NULL
);
4872 do_spec_1 (target_system_root
, 1, NULL
);
4873 if (target_sysroot_hdrs_suffix
)
4874 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4875 do_spec_1 (" ", 0, NULL
);
4878 for (; pl
; pl
= pl
->next
)
4879 /* Separate options, don't include non-suffixed variant. */
4880 do_spec_path (pl
, "-isystem", 0, 1, 1, "include", "include");
4886 int max
= n_infiles
;
4887 max
+= lang_specific_extra_outfiles
;
4889 for (i
= 0; i
< max
; i
++)
4891 store_arg (outfiles
[i
], 0, 0);
4896 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4901 this_is_library_file
= 1;
4905 outfiles
[input_file_number
] = NULL
;
4909 this_is_output_file
= 1;
4914 int cur_index
= argbuf_index
;
4915 /* Handle the {...} following the %W. */
4918 p
= handle_braces (p
+ 1);
4921 /* End any pending argument. */
4924 obstack_1grow (&obstack
, 0);
4925 string
= obstack_finish (&obstack
);
4926 if (this_is_library_file
)
4927 string
= find_file (string
);
4928 store_arg (string
, delete_this_arg
, this_is_output_file
);
4929 if (this_is_output_file
)
4930 outfiles
[input_file_number
] = string
;
4933 /* If any args were output, mark the last one for deletion
4935 if (argbuf_index
!= cur_index
)
4936 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4940 /* %x{OPTION} records OPTION for %X to output. */
4946 /* Skip past the option value and make a copy. */
4951 string
= save_string (p1
+ 1, p
- p1
- 2);
4953 /* See if we already recorded this option. */
4954 for (i
= 0; i
< n_linker_options
; i
++)
4955 if (! strcmp (string
, linker_options
[i
]))
4961 /* This option is new; add it. */
4962 add_linker_option (string
, strlen (string
));
4966 /* Dump out the options accumulated previously using %x. */
4968 for (i
= 0; i
< n_linker_options
; i
++)
4970 do_spec_1 (linker_options
[i
], 1, NULL
);
4971 /* Make each accumulated option a separate argument. */
4972 do_spec_1 (" ", 0, NULL
);
4976 /* Dump out the options accumulated previously using -Wa,. */
4978 for (i
= 0; i
< n_assembler_options
; i
++)
4980 do_spec_1 (assembler_options
[i
], 1, NULL
);
4981 /* Make each accumulated option a separate argument. */
4982 do_spec_1 (" ", 0, NULL
);
4986 /* Dump out the options accumulated previously using -Wp,. */
4988 for (i
= 0; i
< n_preprocessor_options
; i
++)
4990 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4991 /* Make each accumulated option a separate argument. */
4992 do_spec_1 (" ", 0, NULL
);
4996 /* Here are digits and numbers that just process
4997 a certain constant string as a spec. */
5000 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5006 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5012 value
= do_spec_1 (asm_spec
, 0, NULL
);
5018 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5025 const char *const spec
5026 = (input_file_compiler
->cpp_spec
5027 ? input_file_compiler
->cpp_spec
5029 value
= do_spec_1 (spec
, 0, NULL
);
5036 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5042 value
= do_spec_1 (link_spec
, 0, NULL
);
5048 value
= do_spec_1 (lib_spec
, 0, NULL
);
5054 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5060 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
5066 len
= strlen (multilib_dir
);
5067 obstack_blank (&obstack
, len
+ 1);
5068 p
= obstack_next_free (&obstack
) - (len
+ 1);
5071 for (q
= multilib_dir
; *q
; ++q
, ++p
)
5072 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
5077 /* We assume there is a directory
5078 separator at the end of this string. */
5079 if (target_system_root
)
5081 obstack_grow (&obstack
, target_system_root
,
5082 strlen (target_system_root
));
5083 if (target_sysroot_suffix
)
5084 obstack_grow (&obstack
, target_sysroot_suffix
,
5085 strlen (target_sysroot_suffix
));
5090 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5095 /* Here we define characters other than letters and digits. */
5098 p
= handle_braces (p
);
5104 p
= handle_spec_function (p
);
5110 obstack_1grow (&obstack
, '%');
5117 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5119 suffix_subst
= save_string (p
- 1, len
+ 1);
5124 /* Henceforth ignore the option(s) matching the pattern
5129 int have_wildcard
= 0;
5132 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5135 if (p
[len
-1] == '*')
5138 for (i
= 0; i
< n_switches
; i
++)
5139 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5140 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5142 switches
[i
].live_cond
= SWITCH_IGNORE
;
5143 switches
[i
].validated
= 1;
5151 if (soft_matched_part
)
5153 do_spec_1 (soft_matched_part
, 1, NULL
);
5154 do_spec_1 (" ", 0, NULL
);
5157 /* Catch the case where a spec string contains something like
5158 '%{foo:%*}'. ie there is no * in the pattern on the left
5159 hand side of the :. */
5160 error ("spec failure: '%%*' has not been initialized by pattern match");
5163 /* Process a string found as the value of a spec given by name.
5164 This feature allows individual machine descriptions
5165 to add and use their own specs.
5166 %[...] modifies -D options the way %P does;
5167 %(...) uses the spec unmodified. */
5169 error ("warning: use of obsolete %%[ operator in specs");
5172 const char *name
= p
;
5173 struct spec_list
*sl
;
5176 /* The string after the S/P is the name of a spec that is to be
5178 while (*p
&& *p
!= ')' && *p
!= ']')
5181 /* See if it's in the list. */
5182 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5183 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5185 name
= *(sl
->ptr_spec
);
5187 notice ("Processing spec %c%s%c, which is '%s'\n",
5188 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5197 value
= do_spec_1 (name
, 0, NULL
);
5203 char *x
= alloca (strlen (name
) * 2 + 1);
5205 const char *y
= name
;
5208 /* Copy all of NAME into BUF, but put __ after
5209 every -D and at the end of each arg. */
5212 if (! strncmp (y
, "-D", 2))
5223 && (*y
== ' ' || *y
== '\t' || *y
== '='
5224 || *y
== '}' || *y
== 0))
5237 value
= do_spec_1 (buf
, 0, NULL
);
5243 /* Discard the closing paren or bracket. */
5250 error ("spec failure: unrecognized spec option '%c'", c
);
5256 /* Backslash: treat next character as ordinary. */
5261 /* Ordinary character: put it into the current argument. */
5262 obstack_1grow (&obstack
, c
);
5266 /* End of string. If we are processing a spec function, we need to
5267 end any pending argument. */
5268 if (processing_spec_function
&& arg_going
)
5270 obstack_1grow (&obstack
, 0);
5271 string
= obstack_finish (&obstack
);
5272 if (this_is_library_file
)
5273 string
= find_file (string
);
5274 store_arg (string
, delete_this_arg
, this_is_output_file
);
5275 if (this_is_output_file
)
5276 outfiles
[input_file_number
] = string
;
5283 /* Look up a spec function. */
5285 static const struct spec_function
*
5286 lookup_spec_function (const char *name
)
5288 static const struct spec_function
* const spec_function_tables
[] =
5290 static_spec_functions
,
5291 lang_specific_spec_functions
,
5293 const struct spec_function
*sf
;
5296 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5298 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5299 if (strcmp (sf
->name
, name
) == 0)
5306 /* Evaluate a spec function. */
5309 eval_spec_function (const char *func
, const char *args
)
5311 const struct spec_function
*sf
;
5312 const char *funcval
;
5314 /* Saved spec processing context. */
5315 int save_argbuf_index
;
5316 int save_argbuf_length
;
5317 const char **save_argbuf
;
5320 int save_delete_this_arg
;
5321 int save_this_is_output_file
;
5322 int save_this_is_library_file
;
5323 int save_input_from_pipe
;
5324 const char *save_suffix_subst
;
5327 sf
= lookup_spec_function (func
);
5329 fatal ("unknown spec function `%s'", func
);
5331 /* Push the spec processing context. */
5332 save_argbuf_index
= argbuf_index
;
5333 save_argbuf_length
= argbuf_length
;
5334 save_argbuf
= argbuf
;
5336 save_arg_going
= arg_going
;
5337 save_delete_this_arg
= delete_this_arg
;
5338 save_this_is_output_file
= this_is_output_file
;
5339 save_this_is_library_file
= this_is_library_file
;
5340 save_input_from_pipe
= input_from_pipe
;
5341 save_suffix_subst
= suffix_subst
;
5343 /* Create a new spec processing context, and build the function
5347 if (do_spec_2 (args
) < 0)
5348 fatal ("error in args to spec function `%s'", func
);
5350 /* argbuf_index is an index for the next argument to be inserted, and
5351 so contains the count of the args already inserted. */
5353 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5355 /* Pop the spec processing context. */
5356 argbuf_index
= save_argbuf_index
;
5357 argbuf_length
= save_argbuf_length
;
5359 argbuf
= save_argbuf
;
5361 arg_going
= save_arg_going
;
5362 delete_this_arg
= save_delete_this_arg
;
5363 this_is_output_file
= save_this_is_output_file
;
5364 this_is_library_file
= save_this_is_library_file
;
5365 input_from_pipe
= save_input_from_pipe
;
5366 suffix_subst
= save_suffix_subst
;
5371 /* Handle a spec function call of the form:
5375 ARGS is processed as a spec in a separate context and split into an
5376 argument vector in the normal fashion. The function returns a string
5377 containing a spec which we then process in the caller's context, or
5378 NULL if no processing is required. */
5381 handle_spec_function (const char *p
)
5384 const char *endp
, *funcval
;
5387 processing_spec_function
++;
5389 /* Get the function name. */
5390 for (endp
= p
; *endp
!= '\0'; endp
++)
5392 if (*endp
== '(') /* ) */
5394 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5395 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5396 fatal ("malformed spec function name");
5398 if (*endp
!= '(') /* ) */
5399 fatal ("no arguments for spec function");
5400 func
= save_string (p
, endp
- p
);
5403 /* Get the arguments. */
5404 for (count
= 0; *endp
!= '\0'; endp
++)
5413 else if (*endp
== '(') /* ) */
5418 fatal ("malformed spec function arguments");
5419 args
= save_string (p
, endp
- p
);
5422 /* p now points to just past the end of the spec function expression. */
5424 funcval
= eval_spec_function (func
, args
);
5425 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5431 processing_spec_function
--;
5436 /* Inline subroutine of handle_braces. Returns true if the current
5437 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5439 input_suffix_matches (const char *atom
, const char *end_atom
)
5441 return (input_suffix
5442 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5443 && input_suffix
[end_atom
- atom
] == '\0');
5446 /* Inline subroutine of handle_braces. Returns true if a switch
5447 matching the atom bracketed by ATOM and END_ATOM appeared on the
5450 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5453 int len
= end_atom
- atom
;
5454 int plen
= starred
? len
: -1;
5456 for (i
= 0; i
< n_switches
; i
++)
5457 if (!strncmp (switches
[i
].part1
, atom
, len
)
5458 && (starred
|| switches
[i
].part1
[len
] == '\0')
5459 && check_live_switch (i
, plen
))
5465 /* Inline subroutine of handle_braces. Mark all of the switches which
5466 match ATOM (extends to END_ATOM; STARRED indicates whether there
5467 was a star after the atom) for later processing. */
5469 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5472 int len
= end_atom
- atom
;
5473 int plen
= starred
? len
: -1;
5475 for (i
= 0; i
< n_switches
; i
++)
5476 if (!strncmp (switches
[i
].part1
, atom
, len
)
5477 && (starred
|| switches
[i
].part1
[len
] == '\0')
5478 && check_live_switch (i
, plen
))
5479 switches
[i
].ordering
= 1;
5482 /* Inline subroutine of handle_braces. Process all the currently
5483 marked switches through give_switch, and clear the marks. */
5485 process_marked_switches (void)
5489 for (i
= 0; i
< n_switches
; i
++)
5490 if (switches
[i
].ordering
== 1)
5492 switches
[i
].ordering
= 0;
5497 /* Handle a %{ ... } construct. P points just inside the leading {.
5498 Returns a pointer one past the end of the brace block, or 0
5499 if we call do_spec_1 and that returns -1. */
5502 handle_braces (const char *p
)
5504 const char *atom
, *end_atom
;
5505 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5512 bool a_must_be_last
= false;
5513 bool ordered_set
= false;
5514 bool disjunct_set
= false;
5515 bool disj_matched
= false;
5516 bool disj_starred
= true;
5517 bool n_way_choice
= false;
5518 bool n_way_matched
= false;
5520 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5527 /* Scan one "atom" (S in the description above of %{}, possibly
5528 with !, ., or * modifiers). */
5529 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5533 p
++, a_is_negated
= true;
5537 p
++, a_is_suffix
= true;
5540 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5541 || *p
== ',' || *p
== '.' || *p
== '@')
5546 p
++, a_is_starred
= 1;
5549 if (*p
== '&' || *p
== '}')
5551 /* Substitute the switch(es) indicated by the current atom. */
5553 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5554 || atom
== end_atom
)
5557 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5560 process_marked_switches ();
5562 else if (*p
== '|' || *p
== ':')
5564 /* Substitute some text if the current atom appears as a switch
5566 disjunct_set
= true;
5570 if (atom
== end_atom
)
5572 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5573 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5576 /* An empty term may appear as the last choice of an
5577 N-way choice set; it means "otherwise". */
5578 a_must_be_last
= true;
5579 disj_matched
= !n_way_matched
;
5580 disj_starred
= false;
5584 if (a_is_suffix
&& a_is_starred
)
5588 disj_starred
= false;
5590 /* Don't bother testing this atom if we already have a
5592 if (!disj_matched
&& !n_way_matched
)
5595 a_matched
= input_suffix_matches (atom
, end_atom
);
5597 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5599 if (a_matched
!= a_is_negated
)
5601 disj_matched
= true;
5603 d_end_atom
= end_atom
;
5610 /* Found the body, that is, the text to substitute if the
5611 current disjunction matches. */
5612 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5613 disj_matched
&& !n_way_matched
);
5617 /* If we have an N-way choice, reset state for the next
5621 n_way_choice
= true;
5622 n_way_matched
|= disj_matched
;
5623 disj_matched
= false;
5624 disj_starred
= true;
5625 d_atom
= d_end_atom
= NULL
;
5632 while (*p
++ != '}');
5639 /* Subroutine of handle_braces. Scan and process a brace substitution body
5640 (X in the description of %{} syntax). P points one past the colon;
5641 ATOM and END_ATOM bracket the first atom which was found to be true
5642 (present) in the current disjunction; STARRED indicates whether all
5643 the atoms in the current disjunction were starred (for syntax validation);
5644 MATCHED indicates whether the disjunction matched or not, and therefore
5645 whether or not the body is to be processed through do_spec_1 or just
5646 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5650 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5651 int starred
, int matched
)
5653 const char *body
, *end_body
;
5654 unsigned int nesting_level
;
5655 bool have_subst
= false;
5657 /* Locate the closing } or ;, honoring nested braces.
5658 Trim trailing whitespace. */
5667 if (!--nesting_level
)
5670 else if (*p
== ';' && nesting_level
== 1)
5672 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5674 else if (*p
== '\0')
5680 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5683 if (have_subst
&& !starred
)
5688 /* Copy the substitution body to permanent storage and execute it.
5689 If have_subst is false, this is a simple matter of running the
5690 body through do_spec_1... */
5691 char *string
= save_string (body
, end_body
- body
);
5694 if (do_spec_1 (string
, 0, NULL
) < 0)
5699 /* ... but if have_subst is true, we have to process the
5700 body once for each matching switch, with %* set to the
5701 variant part of the switch. */
5702 unsigned int hard_match_len
= end_atom
- atom
;
5705 for (i
= 0; i
< n_switches
; i
++)
5706 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5707 && check_live_switch (i
, hard_match_len
))
5709 if (do_spec_1 (string
, 0,
5710 &switches
[i
].part1
[hard_match_len
]) < 0)
5712 /* Pass any arguments this switch has. */
5714 suffix_subst
= NULL
;
5722 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5723 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5724 spec, or -1 if either exact match or %* is used.
5726 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5727 whose value does not begin with "no-" is obsoleted by the same value
5728 with the "no-", similarly for a switch with the "no-" prefix. */
5731 check_live_switch (int switchnum
, int prefix_length
)
5733 const char *name
= switches
[switchnum
].part1
;
5736 /* In the common case of {<at-most-one-letter>*}, a negating
5737 switch would always match, so ignore that case. We will just
5738 send the conflicting switches to the compiler phase. */
5739 if (prefix_length
>= 0 && prefix_length
<= 1)
5742 /* If we already processed this switch and determined if it was
5743 live or not, return our past determination. */
5744 if (switches
[switchnum
].live_cond
!= 0)
5745 return switches
[switchnum
].live_cond
> 0;
5747 /* Now search for duplicate in a manner that depends on the name. */
5751 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5752 if (switches
[i
].part1
[0] == 'O')
5754 switches
[switchnum
].validated
= 1;
5755 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5760 case 'W': case 'f': case 'm':
5761 if (! strncmp (name
+ 1, "no-", 3))
5763 /* We have Xno-YYY, search for XYYY. */
5764 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5765 if (switches
[i
].part1
[0] == name
[0]
5766 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5768 switches
[switchnum
].validated
= 1;
5769 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5775 /* We have XYYY, search for Xno-YYY. */
5776 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5777 if (switches
[i
].part1
[0] == name
[0]
5778 && switches
[i
].part1
[1] == 'n'
5779 && switches
[i
].part1
[2] == 'o'
5780 && switches
[i
].part1
[3] == '-'
5781 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5783 switches
[switchnum
].validated
= 1;
5784 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5791 /* Otherwise the switch is live. */
5792 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5796 /* Pass a switch to the current accumulating command
5797 in the same form that we received it.
5798 SWITCHNUM identifies the switch; it is an index into
5799 the vector of switches gcc received, which is `switches'.
5800 This cannot fail since it never finishes a command line.
5802 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5805 give_switch (int switchnum
, int omit_first_word
)
5807 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5810 if (!omit_first_word
)
5812 do_spec_1 ("-", 0, NULL
);
5813 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5816 if (switches
[switchnum
].args
!= 0)
5819 for (p
= switches
[switchnum
].args
; *p
; p
++)
5821 const char *arg
= *p
;
5823 do_spec_1 (" ", 0, NULL
);
5826 unsigned length
= strlen (arg
);
5829 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5830 if (arg
[length
] == '.')
5832 ((char *)arg
)[length
] = 0;
5836 do_spec_1 (arg
, 1, NULL
);
5838 ((char *)arg
)[length
] = '.';
5839 do_spec_1 (suffix_subst
, 1, NULL
);
5842 do_spec_1 (arg
, 1, NULL
);
5846 do_spec_1 (" ", 0, NULL
);
5847 switches
[switchnum
].validated
= 1;
5850 /* Search for a file named NAME trying various prefixes including the
5851 user's -B prefix and some standard ones.
5852 Return the absolute file name found. If nothing is found, return NAME. */
5855 find_file (const char *name
)
5859 /* Try multilib_dir if it is defined. */
5860 if (multilib_os_dir
!= NULL
)
5862 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5864 /* If we don't find it in the multi library dir, then fall
5865 through and look for it in the normal places. */
5866 if (newname
!= NULL
)
5870 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5871 return newname
? newname
: name
;
5874 /* Determine whether a directory exists. If LINKER, return 0 for
5875 certain fixed names not needed by the linker. If not LINKER, it is
5876 only important to return 0 if the host machine has a small ARG_MAX
5880 is_directory (const char *path1
, const char *path2
, int linker
)
5882 int len1
= strlen (path1
);
5883 int len2
= strlen (path2
);
5884 char *path
= alloca (3 + len1
+ len2
);
5888 #ifndef SMALL_ARG_MAX
5893 /* Construct the path from the two parts. Ensure the string ends with "/.".
5894 The resulting path will be a directory even if the given path is a
5896 memcpy (path
, path1
, len1
);
5897 memcpy (path
+ len1
, path2
, len2
);
5898 cp
= path
+ len1
+ len2
;
5899 if (!IS_DIR_SEPARATOR (cp
[-1]))
5900 *cp
++ = DIR_SEPARATOR
;
5904 /* Exclude directories that the linker is known to search. */
5907 && strcmp (path
, concat (dir_separator_str
, "lib",
5908 dir_separator_str
, ".", NULL
)) == 0)
5910 && strcmp (path
, concat (dir_separator_str
, "usr",
5911 dir_separator_str
, "lib",
5912 dir_separator_str
, ".", NULL
)) == 0)))
5915 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5918 /* Set up the various global variables to indicate that we're processing
5919 the input file named FILENAME. */
5922 set_input (const char *filename
)
5926 input_filename
= filename
;
5927 input_filename_length
= strlen (input_filename
);
5929 input_basename
= input_filename
;
5930 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5931 /* Skip drive name so 'x:foo' is handled properly. */
5932 if (input_basename
[1] == ':')
5933 input_basename
+= 2;
5935 for (p
= input_basename
; *p
; p
++)
5936 if (IS_DIR_SEPARATOR (*p
))
5937 input_basename
= p
+ 1;
5939 /* Find a suffix starting with the last period,
5940 and set basename_length to exclude that suffix. */
5941 basename_length
= strlen (input_basename
);
5942 suffixed_basename_length
= basename_length
;
5943 p
= input_basename
+ basename_length
;
5944 while (p
!= input_basename
&& *p
!= '.')
5946 if (*p
== '.' && p
!= input_basename
)
5948 basename_length
= p
- input_basename
;
5949 input_suffix
= p
+ 1;
5954 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5955 we will need to do a stat on the input_filename. The
5956 INPUT_STAT_SET signals that the stat is needed. */
5960 /* On fatal signals, delete all the temporary files. */
5963 fatal_error (int signum
)
5965 signal (signum
, SIG_DFL
);
5966 delete_failure_queue ();
5967 delete_temp_files ();
5968 /* Get the same signal again, this time not handled,
5969 so its normal effect occurs. */
5970 kill (getpid (), signum
);
5973 extern int main (int, const char **);
5976 main (int argc
, const char **argv
)
5980 int linker_was_run
= 0;
5981 int lang_n_infiles
= 0;
5982 int num_linker_inputs
= 0;
5983 char *explicit_link_files
;
5986 struct user_specs
*uptr
;
5988 p
= argv
[0] + strlen (argv
[0]);
5989 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5993 xmalloc_set_program_name (programname
);
5995 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5996 /* Perform host dependent initialization when needed. */
5997 GCC_DRIVER_HOST_INITIALIZATION
;
6000 gcc_init_libintl ();
6002 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6003 signal (SIGINT
, fatal_error
);
6005 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6006 signal (SIGHUP
, fatal_error
);
6008 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6009 signal (SIGTERM
, fatal_error
);
6011 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6012 signal (SIGPIPE
, fatal_error
);
6015 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6016 receive the signal. A different setting is inheritable */
6017 signal (SIGCHLD
, SIG_DFL
);
6020 /* Allocate the argument vector. */
6023 obstack_init (&obstack
);
6025 /* Build multilib_select, et. al from the separate lines that make up each
6026 multilib selection. */
6028 const char *const *q
= multilib_raw
;
6031 obstack_init (&multilib_obstack
);
6032 while ((p
= *q
++) != (char *) 0)
6033 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6035 obstack_1grow (&multilib_obstack
, 0);
6036 multilib_select
= obstack_finish (&multilib_obstack
);
6038 q
= multilib_matches_raw
;
6039 while ((p
= *q
++) != (char *) 0)
6040 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6042 obstack_1grow (&multilib_obstack
, 0);
6043 multilib_matches
= obstack_finish (&multilib_obstack
);
6045 q
= multilib_exclusions_raw
;
6046 while ((p
= *q
++) != (char *) 0)
6047 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6049 obstack_1grow (&multilib_obstack
, 0);
6050 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6053 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6056 obstack_1grow (&multilib_obstack
, ' ');
6057 obstack_grow (&multilib_obstack
,
6058 multilib_defaults_raw
[i
],
6059 strlen (multilib_defaults_raw
[i
]));
6063 obstack_1grow (&multilib_obstack
, 0);
6064 multilib_defaults
= obstack_finish (&multilib_obstack
);
6067 /* Set up to remember the pathname of gcc and any options
6068 needed for collect. We use argv[0] instead of programname because
6069 we need the complete pathname. */
6070 obstack_init (&collect_obstack
);
6071 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6072 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6073 putenv (obstack_finish (&collect_obstack
));
6075 #ifdef INIT_ENVIRONMENT
6076 /* Set up any other necessary machine specific environment variables. */
6077 putenv (INIT_ENVIRONMENT
);
6080 /* Make a table of what switches there are (switches, n_switches).
6081 Make a table of specified input files (infiles, n_infiles).
6082 Decode switches that are handled locally. */
6084 process_command (argc
, argv
);
6086 /* Initialize the vector of specs to just the default.
6087 This means one element containing 0s, as a terminator. */
6089 compilers
= xmalloc (sizeof default_compilers
);
6090 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6091 n_compilers
= n_default_compilers
;
6093 /* Read specs from a file if there is one. */
6095 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6096 spec_version
, dir_separator_str
, NULL
);
6097 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6099 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6100 /* Read the specs file unless it is a default one. */
6101 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6102 read_specs (specs_file
, TRUE
);
6106 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6107 for any override of as, ld and libraries. */
6108 specs_file
= alloca (strlen (standard_exec_prefix
)
6109 + strlen (just_machine_suffix
) + sizeof ("specs"));
6111 strcpy (specs_file
, standard_exec_prefix
);
6112 strcat (specs_file
, just_machine_suffix
);
6113 strcat (specs_file
, "specs");
6114 if (access (specs_file
, R_OK
) == 0)
6115 read_specs (specs_file
, TRUE
);
6117 /* Process any configure-time defaults specified for the command line
6118 options, via OPTION_DEFAULT_SPECS. */
6119 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6120 do_option_spec (option_default_specs
[i
].name
,
6121 option_default_specs
[i
].spec
);
6123 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6124 of the command line. */
6126 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6127 do_self_spec (driver_self_specs
[i
]);
6129 /* If not cross-compiling, look for executables in the standard
6131 if (*cross_compile
== '0')
6133 if (*md_exec_prefix
)
6135 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6136 PREFIX_PRIORITY_LAST
, 0, 0);
6140 /* Process sysroot_suffix_spec. */
6141 if (*sysroot_suffix_spec
!= 0
6142 && do_spec_2 (sysroot_suffix_spec
) == 0)
6144 if (argbuf_index
> 1)
6145 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6146 else if (argbuf_index
== 1)
6147 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6150 /* Process sysroot_hdrs_suffix_spec. */
6151 if (*sysroot_hdrs_suffix_spec
!= 0
6152 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6154 if (argbuf_index
> 1)
6155 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6156 else if (argbuf_index
== 1)
6157 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6160 /* Look for startfiles in the standard places. */
6161 if (*startfile_prefix_spec
!= 0
6162 && do_spec_2 (startfile_prefix_spec
) == 0
6163 && do_spec_1 (" ", 0, NULL
) == 0)
6166 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6167 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6168 PREFIX_PRIORITY_LAST
, 0, 1);
6170 /* We should eventually get rid of all these and stick to
6171 startfile_prefix_spec exclusively. */
6172 else if (*cross_compile
== '0' || target_system_root
)
6174 if (*md_exec_prefix
)
6175 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6176 PREFIX_PRIORITY_LAST
, 0, 1);
6178 if (*md_startfile_prefix
)
6179 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6180 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6182 if (*md_startfile_prefix_1
)
6183 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6184 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6186 /* If standard_startfile_prefix is relative, base it on
6187 standard_exec_prefix. This lets us move the installed tree
6188 as a unit. If GCC_EXEC_PREFIX is defined, base
6189 standard_startfile_prefix on that as well.
6191 If the prefix is relative, only search it for native compilers;
6192 otherwise we will search a directory containing host libraries. */
6193 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6194 add_sysrooted_prefix (&startfile_prefixes
,
6195 standard_startfile_prefix
, "BINUTILS",
6196 PREFIX_PRIORITY_LAST
, 0, 1);
6197 else if (*cross_compile
== '0')
6199 if (gcc_exec_prefix
)
6200 add_prefix (&startfile_prefixes
,
6201 concat (gcc_exec_prefix
, machine_suffix
,
6202 standard_startfile_prefix
, NULL
),
6203 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6204 add_prefix (&startfile_prefixes
,
6205 concat (standard_exec_prefix
,
6207 standard_startfile_prefix
, NULL
),
6208 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6211 if (*standard_startfile_prefix_1
)
6212 add_sysrooted_prefix (&startfile_prefixes
,
6213 standard_startfile_prefix_1
, "BINUTILS",
6214 PREFIX_PRIORITY_LAST
, 0, 1);
6215 if (*standard_startfile_prefix_2
)
6216 add_sysrooted_prefix (&startfile_prefixes
,
6217 standard_startfile_prefix_2
, "BINUTILS",
6218 PREFIX_PRIORITY_LAST
, 0, 1);
6221 /* Process any user specified specs in the order given on the command
6223 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6225 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6227 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6230 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6231 if (gcc_exec_prefix
)
6232 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6233 spec_version
, dir_separator_str
, NULL
);
6235 /* Now we have the specs.
6236 Set the `valid' bits for switches that match anything in any spec. */
6238 validate_all_switches ();
6240 /* Now that we have the switches and the specs, set
6241 the subdirectory based on the options. */
6242 set_multilib_dir ();
6244 /* Warn about any switches that no pass was interested in. */
6246 for (i
= 0; (int) i
< n_switches
; i
++)
6247 if (! switches
[i
].validated
)
6248 error ("unrecognized option `-%s'", switches
[i
].part1
);
6250 /* Obey some of the options. */
6252 if (print_search_dirs
)
6254 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6255 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6256 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6260 if (print_file_name
)
6262 printf ("%s\n", find_file (print_file_name
));
6266 if (print_prog_name
)
6268 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6269 printf ("%s\n", (newname
? newname
: print_prog_name
));
6273 if (print_multi_lib
)
6275 print_multilib_info ();
6279 if (print_multi_directory
)
6281 if (multilib_dir
== NULL
)
6284 printf ("%s\n", multilib_dir
);
6288 if (print_multi_os_directory
)
6290 if (multilib_os_dir
== NULL
)
6293 printf ("%s\n", multilib_os_dir
);
6297 if (target_help_flag
)
6299 /* Print if any target specific options. */
6301 /* We do not exit here. Instead we have created a fake input file
6302 called 'target-dummy' which needs to be compiled, and we pass this
6303 on to the various sub-processes, along with the --target-help
6307 if (print_help_list
)
6313 printf (_("\nFor bug reporting instructions, please see:\n"));
6314 printf ("%s.\n", bug_report_url
);
6319 /* We do not exit here. Instead we have created a fake input file
6320 called 'help-dummy' which needs to be compiled, and we pass this
6321 on the various sub-processes, along with the --help switch. */
6329 notice ("Configured with: %s\n", configuration_arguments
);
6331 #ifdef THREAD_MODEL_SPEC
6332 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6333 but there's no point in doing all this processing just to get
6334 thread_model back. */
6335 obstack_init (&obstack
);
6336 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6337 obstack_1grow (&obstack
, '\0');
6338 thrmod
= obstack_finish (&obstack
);
6340 thrmod
= thread_model
;
6343 notice ("Thread model: %s\n", thrmod
);
6345 /* compiler_version is truncated at the first space when initialized
6346 from version string, so truncate version_string at the first space
6347 before comparing. */
6348 for (n
= 0; version_string
[n
]; n
++)
6349 if (version_string
[n
] == ' ')
6352 if (! strncmp (version_string
, compiler_version
, n
)
6353 && compiler_version
[n
] == 0)
6354 notice ("gcc version %s\n", version_string
);
6356 notice ("gcc driver version %s executing gcc version %s\n",
6357 version_string
, compiler_version
);
6363 if (n_infiles
== added_libraries
)
6364 fatal ("no input files");
6366 /* Make a place to record the compiler output file names
6367 that correspond to the input files. */
6370 i
+= lang_specific_extra_outfiles
;
6371 outfiles
= xcalloc (i
, sizeof (char *));
6373 /* Record which files were specified explicitly as link input. */
6375 explicit_link_files
= xcalloc (1, n_infiles
);
6378 combine_inputs
= true;
6380 combine_inputs
= false;
6382 for (i
= 0; (int) i
< n_infiles
; i
++)
6384 const char *name
= infiles
[i
].name
;
6385 struct compiler
*compiler
= lookup_compiler (name
,
6387 infiles
[i
].language
);
6389 if (compiler
&& !(compiler
->combinable
))
6390 combine_inputs
= false;
6392 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6393 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6394 infiles
[i
].incompiler
= compiler
;
6398 input_file_compiler
= compiler
;
6399 infiles
[i
].incompiler
= compiler
;
6403 /* Since there is no compiler for this input file, assume it is a
6405 explicit_link_files
[i
] = 1;
6406 infiles
[i
].incompiler
= NULL
;
6408 infiles
[i
].compiled
= false;
6409 infiles
[i
].preprocessed
= false;
6412 if (combine_flag
&& save_temps_flag
)
6414 bool save_combine_inputs
= combine_inputs
;
6415 /* Must do a separate pre-processing pass for C & Objective-C files, to
6416 obtain individual .i files. */
6418 combine_inputs
= false;
6419 for (i
= 0; (int) i
< n_infiles
; i
++)
6421 int this_file_error
= 0;
6423 input_file_number
= i
;
6424 set_input (infiles
[i
].name
);
6425 if (infiles
[i
].incompiler
6426 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6427 input_file_compiler
= infiles
[i
].incompiler
;
6431 if (input_file_compiler
)
6433 if (input_file_compiler
->spec
[0] == '#')
6435 error ("%s: %s compiler not installed on this system",
6436 input_filename
, &input_file_compiler
->spec
[1]);
6437 this_file_error
= 1;
6441 value
= do_spec (input_file_compiler
->spec
);
6442 infiles
[i
].preprocessed
= true;
6443 if (have_o_argbuf_index
)
6444 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6447 infiles
[i
].incompiler
= lookup_compiler (infiles
[i
].name
,
6448 strlen (infiles
[i
].name
),
6449 infiles
[i
].language
);
6452 this_file_error
= 1;
6456 if (this_file_error
)
6458 delete_failure_queue ();
6462 clear_failure_queue ();
6464 combine_inputs
= save_combine_inputs
;
6467 for (i
= 0; (int) i
< n_infiles
; i
++)
6469 int this_file_error
= 0;
6471 /* Tell do_spec what to substitute for %i. */
6473 input_file_number
= i
;
6474 set_input (infiles
[i
].name
);
6476 if (infiles
[i
].compiled
)
6479 /* Use the same thing in %o, unless cp->spec says otherwise. */
6481 outfiles
[i
] = input_filename
;
6483 /* Figure out which compiler from the file's suffix. */
6485 if (! combine_inputs
)
6487 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6488 infiles
[i
].language
);
6490 input_file_compiler
= infiles
[i
].incompiler
;
6492 if (input_file_compiler
)
6494 /* Ok, we found an applicable compiler. Run its spec. */
6496 if (input_file_compiler
->spec
[0] == '#')
6498 error ("%s: %s compiler not installed on this system",
6499 input_filename
, &input_file_compiler
->spec
[1]);
6500 this_file_error
= 1;
6504 value
= do_spec (input_file_compiler
->spec
);
6505 infiles
[i
].compiled
= true;
6507 this_file_error
= 1;
6511 /* If this file's name does not contain a recognized suffix,
6512 record it as explicit linker input. */
6515 explicit_link_files
[i
] = 1;
6517 /* Clear the delete-on-failure queue, deleting the files in it
6518 if this compilation failed. */
6520 if (this_file_error
)
6522 delete_failure_queue ();
6526 /* If this compilation succeeded, don't delete those files later. */
6527 clear_failure_queue ();
6530 /* Reset the output file name to the first input file name, for use
6531 with %b in LINK_SPEC on a target that prefers not to emit a.out
6534 set_input (infiles
[0].name
);
6536 if (error_count
== 0)
6538 /* Make sure INPUT_FILE_NUMBER points to first available open
6540 input_file_number
= n_infiles
;
6541 if (lang_specific_pre_link ())
6545 /* Determine if there are any linker input files. */
6546 num_linker_inputs
= 0;
6547 for (i
= 0; (int) i
< n_infiles
; i
++)
6548 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6549 num_linker_inputs
++;
6551 /* Run ld to link all the compiler output files. */
6553 if (num_linker_inputs
> 0 && error_count
== 0)
6555 int tmp
= execution_count
;
6557 /* We'll use ld if we can't find collect2. */
6558 if (! strcmp (linker_name_spec
, "collect2"))
6560 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6562 linker_name_spec
= "ld";
6564 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6566 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6567 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6569 value
= do_spec (link_command_spec
);
6572 linker_was_run
= (tmp
!= execution_count
);
6575 /* If options said don't run linker,
6576 complain about input files to be given to the linker. */
6578 if (! linker_was_run
&& error_count
== 0)
6579 for (i
= 0; (int) i
< n_infiles
; i
++)
6580 if (explicit_link_files
[i
])
6581 error ("%s: linker input file unused because linking not done",
6584 /* Delete some or all of the temporary files we made. */
6587 delete_failure_queue ();
6588 delete_temp_files ();
6590 if (print_help_list
)
6592 printf (("\nFor bug reporting instructions, please see:\n"));
6593 printf ("%s\n", bug_report_url
);
6596 return (signal_count
!= 0 ? 2
6597 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6601 /* Find the proper compilation spec for the file name NAME,
6602 whose length is LENGTH. LANGUAGE is the specified language,
6603 or 0 if this file is to be passed to the linker. */
6605 static struct compiler
*
6606 lookup_compiler (const char *name
, size_t length
, const char *language
)
6608 struct compiler
*cp
;
6610 /* If this was specified by the user to be a linker input, indicate that. */
6611 if (language
!= 0 && language
[0] == '*')
6614 /* Otherwise, look for the language, if one is spec'd. */
6617 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6618 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6621 error ("language %s not recognized", language
);
6625 /* Look for a suffix. */
6626 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6628 if (/* The suffix `-' matches only the file name `-'. */
6629 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6630 || (strlen (cp
->suffix
) < length
6631 /* See if the suffix matches the end of NAME. */
6632 && !strcmp (cp
->suffix
,
6633 name
+ length
- strlen (cp
->suffix
))
6638 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6639 /* Look again, but case-insensitively this time. */
6641 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6643 if (/* The suffix `-' matches only the file name `-'. */
6644 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6645 || (strlen (cp
->suffix
) < length
6646 /* See if the suffix matches the end of NAME. */
6647 && ((!strcmp (cp
->suffix
,
6648 name
+ length
- strlen (cp
->suffix
))
6649 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6650 && !strcasecmp (cp
->suffix
,
6651 name
+ length
- strlen (cp
->suffix
)))
6657 if (cp
>= compilers
)
6659 if (cp
->spec
[0] != '@')
6660 /* A non-alias entry: return it. */
6663 /* An alias entry maps a suffix to a language.
6664 Search for the language; pass 0 for NAME and LENGTH
6665 to avoid infinite recursion if language not found. */
6666 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6672 save_string (const char *s
, int len
)
6674 char *result
= xmalloc (len
+ 1);
6676 memcpy (result
, s
, len
);
6682 pfatal_with_name (const char *name
)
6684 perror_with_name (name
);
6685 delete_temp_files ();
6690 perror_with_name (const char *name
)
6692 error ("%s: %s", name
, xstrerror (errno
));
6696 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6700 int save_errno
= errno
;
6702 /* Space for trailing '\0' is in %s. */
6703 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6704 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6710 pfatal_with_name (errmsg_fmt
);
6713 /* Output an error message and exit. */
6718 fatal ("internal gcc abort");
6721 /* Output an error message and exit. */
6724 fatal (const char *msgid
, ...)
6728 va_start (ap
, msgid
);
6730 fprintf (stderr
, "%s: ", programname
);
6731 vfprintf (stderr
, _(msgid
), ap
);
6733 fprintf (stderr
, "\n");
6734 delete_temp_files ();
6739 error (const char *msgid
, ...)
6743 va_start (ap
, msgid
);
6744 fprintf (stderr
, "%s: ", programname
);
6745 vfprintf (stderr
, _(msgid
), ap
);
6748 fprintf (stderr
, "\n");
6752 notice (const char *msgid
, ...)
6756 va_start (ap
, msgid
);
6757 vfprintf (stderr
, _(msgid
), ap
);
6762 validate_switches_from_spec (const char *spec
)
6764 const char *p
= spec
;
6767 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6768 /* We have a switch spec. */
6769 p
= validate_switches (p
+ 1);
6773 validate_all_switches (void)
6775 struct compiler
*comp
;
6776 struct spec_list
*spec
;
6778 for (comp
= compilers
; comp
->spec
; comp
++)
6779 validate_switches_from_spec (comp
->spec
);
6781 /* Look through the linked list of specs read from the specs file. */
6782 for (spec
= specs
; spec
; spec
= spec
->next
)
6783 validate_switches_from_spec (*spec
->ptr_spec
);
6785 validate_switches_from_spec (link_command_spec
);
6788 /* Look at the switch-name that comes after START
6789 and mark as valid all supplied switches that match it. */
6792 validate_switches (const char *start
)
6794 const char *p
= start
;
6798 bool suffix
= false;
6799 bool starred
= false;
6801 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6814 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6815 || *p
== ',' || *p
== '.' || *p
== '@')
6820 starred
= true, p
++;
6826 /* Mark all matching switches as valid. */
6827 for (i
= 0; i
< n_switches
; i
++)
6828 if (!strncmp (switches
[i
].part1
, atom
, len
)
6829 && (starred
|| switches
[i
].part1
[len
] == 0))
6830 switches
[i
].validated
= 1;
6834 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6837 if (*p
&& p
[-1] == ':')
6839 while (*p
&& *p
!= ';' && *p
!= '}')
6844 if (*p
== '{' || *p
== '<')
6845 p
= validate_switches (p
+1);
6846 else if (p
[0] == 'W' && p
[1] == '{')
6847 p
= validate_switches (p
+2);
6854 if (*p
&& p
[-1] == ';')
6868 static struct mdswitchstr
*mdswitches
;
6869 static int n_mdswitches
;
6871 /* Check whether a particular argument was used. The first time we
6872 canonicalize the switches to keep only the ones we care about. */
6875 used_arg (const char *p
, int len
)
6880 const char *replace
;
6885 static struct mswitchstr
*mswitches
;
6886 static int n_mswitches
;
6891 struct mswitchstr
*matches
;
6895 /* Break multilib_matches into the component strings of string
6896 and replacement string. */
6897 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6901 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6903 q
= multilib_matches
;
6913 matches
[i
].len
= q
- matches
[i
].str
;
6915 matches
[i
].replace
= ++q
;
6916 while (*q
!= ';' && *q
!= '\0')
6922 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6928 /* Now build a list of the replacement string for switches that we care
6929 about. Make sure we allocate at least one entry. This prevents
6930 xmalloc from calling fatal, and prevents us from re-executing this
6933 = xmalloc (sizeof (struct mswitchstr
)
6934 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6935 for (i
= 0; i
< n_switches
; i
++)
6936 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6938 int xlen
= strlen (switches
[i
].part1
);
6939 for (j
= 0; j
< cnt
; j
++)
6940 if (xlen
== matches
[j
].len
6941 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6943 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6944 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6945 mswitches
[n_mswitches
].replace
= (char *) 0;
6946 mswitches
[n_mswitches
].rep_len
= 0;
6952 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6953 on the command line nor any options mutually incompatible with
6955 for (i
= 0; i
< n_mdswitches
; i
++)
6959 for (q
= multilib_options
; *q
!= '\0'; q
++)
6965 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6966 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6968 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6975 if (*q
!= ' ' && *q
!= '\0')
6977 while (*r
!= ' ' && *r
!= '\0')
6980 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6983 if (used_arg (r
, q
- r
))
6988 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6989 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6990 mswitches
[n_mswitches
].replace
= (char *) 0;
6991 mswitches
[n_mswitches
].rep_len
= 0;
7004 for (i
= 0; i
< n_mswitches
; i
++)
7005 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7012 default_arg (const char *p
, int len
)
7016 for (i
= 0; i
< n_mdswitches
; i
++)
7017 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7023 /* Work out the subdirectory to use based on the options. The format of
7024 multilib_select is a list of elements. Each element is a subdirectory
7025 name followed by a list of options followed by a semicolon. The format
7026 of multilib_exclusions is the same, but without the preceding
7027 directory. First gcc will check the exclusions, if none of the options
7028 beginning with an exclamation point are present, and all of the other
7029 options are present, then we will ignore this completely. Passing
7030 that, gcc will consider each multilib_select in turn using the same
7031 rules for matching the options. If a match is found, that subdirectory
7035 set_multilib_dir (void)
7038 unsigned int this_path_len
;
7039 const char *this_path
, *this_arg
;
7040 const char *start
, *end
;
7042 int ok
, ndfltok
, first
;
7045 start
= multilib_defaults
;
7046 while (*start
== ' ' || *start
== '\t')
7048 while (*start
!= '\0')
7051 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7053 while (*start
== ' ' || *start
== '\t')
7061 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7062 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7064 while (*start
== ' ' || *start
== '\t')
7070 for (end
= start
+ 1;
7071 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7074 obstack_grow (&multilib_obstack
, start
, end
- start
);
7075 obstack_1grow (&multilib_obstack
, 0);
7076 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7077 mdswitches
[i
++].len
= end
- start
;
7084 p
= multilib_exclusions
;
7087 /* Ignore newlines. */
7094 /* Check the arguments. */
7108 while (*p
!= ' ' && *p
!= ';')
7115 if (*this_arg
!= '!')
7123 ok
= used_arg (this_arg
, p
- this_arg
);
7138 p
= multilib_select
;
7141 /* Ignore newlines. */
7148 /* Get the initial path. */
7156 this_path_len
= p
- this_path
;
7158 /* Check the arguments. */
7174 while (*p
!= ' ' && *p
!= ';')
7181 if (*this_arg
!= '!')
7189 /* If this is a default argument, we can just ignore it.
7190 This is true even if this_arg begins with '!'. Beginning
7191 with '!' does not mean that this argument is necessarily
7192 inappropriate for this library: it merely means that
7193 there is a more specific library which uses this
7194 argument. If this argument is a default, we need not
7195 consider that more specific library. */
7196 ok
= used_arg (this_arg
, p
- this_arg
);
7203 if (default_arg (this_arg
, p
- this_arg
))
7212 if (this_path_len
!= 1
7213 || this_path
[0] != '.')
7215 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7218 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7219 new_multilib_dir
[this_path_len
] = '\0';
7220 q
= strchr (new_multilib_dir
, ':');
7223 multilib_dir
= new_multilib_dir
;
7230 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7232 while (q
< end
&& *q
!= ':')
7236 char *new_multilib_os_dir
= xmalloc (end
- q
);
7237 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7238 new_multilib_os_dir
[end
- q
- 1] = '\0';
7239 multilib_os_dir
= new_multilib_os_dir
;
7247 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7248 && strcmp (multilib_os_dir
, ".") == 0)
7250 free ((char *) multilib_os_dir
);
7251 multilib_os_dir
= NULL
;
7253 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7254 multilib_os_dir
= multilib_dir
;
7257 /* Print out the multiple library subdirectory selection
7258 information. This prints out a series of lines. Each line looks
7259 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7260 required. Only the desired options are printed out, the negative
7261 matches. The options are print without a leading dash. There are
7262 no spaces to make it easy to use the information in the shell.
7263 Each subdirectory is printed only once. This assumes the ordering
7264 generated by the genmultilib script. Also, we leave out ones that match
7268 print_multilib_info (void)
7270 const char *p
= multilib_select
;
7271 const char *last_path
= 0, *this_path
;
7273 unsigned int last_path_len
= 0;
7278 /* Ignore newlines. */
7285 /* Get the initial path. */
7294 /* When --disable-multilib was used but target defines
7295 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7296 to find multilib_os_dir, so skip them from output. */
7297 if (this_path
[0] == '.' && this_path
[1] == ':')
7300 /* Check for matches with the multilib_exclusions. We don't bother
7301 with the '!' in either list. If any of the exclusion rules match
7302 all of its options with the select rule, we skip it. */
7304 const char *e
= multilib_exclusions
;
7305 const char *this_arg
;
7310 /* Ignore newlines. */
7317 /* Check the arguments. */
7334 while (*e
!= ' ' && *e
!= ';')
7345 int len
= e
- this_arg
;
7352 while (*q
!= ' ' && *q
!= ';')
7359 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7360 default_arg (this_arg
, e
- this_arg
))
7390 /* If this is a duplicate, skip it. */
7391 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7392 && ! strncmp (last_path
, this_path
, last_path_len
));
7394 last_path
= this_path
;
7395 last_path_len
= p
- this_path
;
7398 /* If this directory requires any default arguments, we can skip
7399 it. We will already have printed a directory identical to
7400 this one which does not require that default argument. */
7418 while (*q
!= ' ' && *q
!= ';')
7426 && default_arg (arg
, q
- arg
))
7441 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7460 use_arg
= *p
!= '!';
7465 while (*p
!= ' ' && *p
!= ';')
7480 /* If there are extra options, print them now. */
7481 if (multilib_extra
&& *multilib_extra
)
7483 int print_at
= TRUE
;
7486 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7507 /* if-exists built-in spec function.
7509 Checks to see if the file specified by the absolute pathname in
7510 ARGS exists. Returns that pathname if found.
7512 The usual use for this function is to check for a library file
7513 (whose name has been expanded with %s). */
7516 if_exists_spec_function (int argc
, const char **argv
)
7518 /* Must have only one argument. */
7519 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7525 /* if-exists-else built-in spec function.
7527 This is like if-exists, but takes an additional argument which
7528 is returned if the first argument does not exist. */
7531 if_exists_else_spec_function (int argc
, const char **argv
)
7533 /* Must have exactly two arguments. */
7537 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))