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 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
922 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
923 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
924 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
925 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
926 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
927 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
928 {".FPP", "#Fortran", 0, 0, 0},
929 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
930 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
931 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
932 {".r", "#Ratfor", 0, 0, 0},
933 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
934 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
935 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
936 /* Next come the entries for C. */
937 {".c", "@c", 0, 1, 1},
939 /* cc1 has an integrated ISO C preprocessor. We should invoke the
940 external preprocessor if -save-temps is given. */
941 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
943 %{traditional|ftraditional:\
944 %eGNU C no longer supports -traditional without -E}\
946 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
947 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
948 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
950 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
951 cc1 %(cpp_unique_options) %(cc1_options)}}}\
952 %{!fsyntax-only:%(invoke_as)}} \
954 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
955 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
956 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
957 cc1 %(cpp_unique_options) %(cc1_options)}}\
958 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
960 "%{!E:%e-E required when input is from standard input}\
961 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
962 {".h", "@c-header", 0, 0, 0},
964 /* cc1 has an integrated ISO C preprocessor. We should invoke the
965 external preprocessor if -save-temps is given. */
966 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
968 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
969 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
970 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
972 -o %g.s %{!o*:--output-pch=%i.gch}\
973 %W{o*:--output-pch=%*}%V}\
974 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
975 cc1 %(cpp_unique_options) %(cc1_options)\
976 -o %g.s %{!o*:--output-pch=%i.gch}\
977 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
978 {".i", "@cpp-output", 0, 1, 0},
980 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
981 {".s", "@assembler", 0, 1, 0},
983 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
984 {".S", "@assembler-with-cpp", 0, 1, 0},
985 {"@assembler-with-cpp",
986 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
987 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
988 %{E|M|MM:%(cpp_debug_options)}\
989 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
990 as %(asm_debug) %(asm_options) %|.s %A }}}}"
992 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
993 %{E|M|MM:%(cpp_debug_options)}\
994 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
995 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1000 /* Mark end of table. */
1004 /* Number of elements in default_compilers, not counting the terminator. */
1006 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1008 /* A vector of options to give to the linker.
1009 These options are accumulated by %x,
1010 and substituted into the linker command with %X. */
1011 static int n_linker_options
;
1012 static char **linker_options
;
1014 /* A vector of options to give to the assembler.
1015 These options are accumulated by -Wa,
1016 and substituted into the assembler command with %Y. */
1017 static int n_assembler_options
;
1018 static char **assembler_options
;
1020 /* A vector of options to give to the preprocessor.
1021 These options are accumulated by -Wp,
1022 and substituted into the preprocessor command with %Z. */
1023 static int n_preprocessor_options
;
1024 static char **preprocessor_options
;
1026 /* Define how to map long options into short ones. */
1028 /* This structure describes one mapping. */
1031 /* The long option's name. */
1032 const char *const name
;
1033 /* The equivalent short option. */
1034 const char *const equivalent
;
1035 /* Argument info. A string of flag chars; NULL equals no options.
1036 a => argument required.
1037 o => argument optional.
1038 j => join argument to equivalent, making one word.
1039 * => require other text after NAME as an argument. */
1040 const char *const arg_info
;
1043 /* This is the table of mappings. Mappings are tried sequentially
1044 for each option encountered; the first one that matches, wins. */
1046 static const struct option_map option_map
[] =
1048 {"--all-warnings", "-Wall", 0},
1049 {"--ansi", "-ansi", 0},
1050 {"--assemble", "-S", 0},
1051 {"--assert", "-A", "a"},
1052 {"--classpath", "-fclasspath=", "aj"},
1053 {"--bootclasspath", "-fbootclasspath=", "aj"},
1054 {"--CLASSPATH", "-fclasspath=", "aj"},
1055 {"--combine", "-combine", 0},
1056 {"--comments", "-C", 0},
1057 {"--comments-in-macros", "-CC", 0},
1058 {"--compile", "-c", 0},
1059 {"--debug", "-g", "oj"},
1060 {"--define-macro", "-D", "aj"},
1061 {"--dependencies", "-M", 0},
1062 {"--dump", "-d", "a"},
1063 {"--dumpbase", "-dumpbase", "a"},
1064 {"--entry", "-e", 0},
1065 {"--extra-warnings", "-W", 0},
1066 {"--for-assembler", "-Wa", "a"},
1067 {"--for-linker", "-Xlinker", "a"},
1068 {"--force-link", "-u", "a"},
1069 {"--imacros", "-imacros", "a"},
1070 {"--include", "-include", "a"},
1071 {"--include-barrier", "-I-", 0},
1072 {"--include-directory", "-I", "aj"},
1073 {"--include-directory-after", "-idirafter", "a"},
1074 {"--include-prefix", "-iprefix", "a"},
1075 {"--include-with-prefix", "-iwithprefix", "a"},
1076 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1077 {"--include-with-prefix-after", "-iwithprefix", "a"},
1078 {"--language", "-x", "a"},
1079 {"--library-directory", "-L", "a"},
1080 {"--machine", "-m", "aj"},
1081 {"--machine-", "-m", "*j"},
1082 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1083 {"--no-line-commands", "-P", 0},
1084 {"--no-precompiled-includes", "-noprecomp", 0},
1085 {"--no-standard-includes", "-nostdinc", 0},
1086 {"--no-standard-libraries", "-nostdlib", 0},
1087 {"--no-warnings", "-w", 0},
1088 {"--optimize", "-O", "oj"},
1089 {"--output", "-o", "a"},
1090 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1091 {"--param", "--param", "a"},
1092 {"--pedantic", "-pedantic", 0},
1093 {"--pedantic-errors", "-pedantic-errors", 0},
1094 {"--pie", "-pie", 0},
1095 {"--pipe", "-pipe", 0},
1096 {"--prefix", "-B", "a"},
1097 {"--preprocess", "-E", 0},
1098 {"--print-search-dirs", "-print-search-dirs", 0},
1099 {"--print-file-name", "-print-file-name=", "aj"},
1100 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1101 {"--print-missing-file-dependencies", "-MG", 0},
1102 {"--print-multi-lib", "-print-multi-lib", 0},
1103 {"--print-multi-directory", "-print-multi-directory", 0},
1104 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1105 {"--print-prog-name", "-print-prog-name=", "aj"},
1106 {"--profile", "-p", 0},
1107 {"--profile-blocks", "-a", 0},
1108 {"--quiet", "-q", 0},
1109 {"--resource", "-fcompile-resource=", "aj"},
1110 {"--save-temps", "-save-temps", 0},
1111 {"--shared", "-shared", 0},
1112 {"--silent", "-q", 0},
1113 {"--specs", "-specs=", "aj"},
1114 {"--static", "-static", 0},
1115 {"--std", "-std=", "aj"},
1116 {"--symbolic", "-symbolic", 0},
1117 {"--time", "-time", 0},
1118 {"--trace-includes", "-H", 0},
1119 {"--traditional", "-traditional", 0},
1120 {"--traditional-cpp", "-traditional-cpp", 0},
1121 {"--trigraphs", "-trigraphs", 0},
1122 {"--undefine-macro", "-U", "aj"},
1123 {"--user-dependencies", "-MM", 0},
1124 {"--verbose", "-v", 0},
1125 {"--warn-", "-W", "*j"},
1126 {"--write-dependencies", "-MD", 0},
1127 {"--write-user-dependencies", "-MMD", 0},
1132 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1133 static const struct {
1134 const char *const option_found
;
1135 const char *const replacements
;
1136 } target_option_translations
[] =
1138 TARGET_OPTION_TRANSLATE_TABLE
,
1143 /* Translate the options described by *ARGCP and *ARGVP.
1144 Make a new vector and store it back in *ARGVP,
1145 and store its length in *ARGVC. */
1148 translate_options (int *argcp
, const char *const **argvp
)
1152 const char *const *argv
= *argvp
;
1153 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1154 const char **newv
= xmalloc (newvsize
);
1158 newv
[newindex
++] = argv
[i
++];
1162 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1166 target_option_translations
[tott_idx
].option_found
;
1169 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1176 for (sp
= target_option_translations
[tott_idx
].replacements
;
1183 newvsize
+= spaces
* sizeof (const char *);
1184 newv
= xrealloc (newv
, newvsize
);
1186 sp
= target_option_translations
[tott_idx
].replacements
;
1195 newv
[newindex
++] = np
;
1196 while (*np
!= ' ' && *np
)
1207 if (target_option_translations
[tott_idx
].option_found
)
1211 /* Translate -- options. */
1212 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1215 /* Find a mapping that applies to this option. */
1216 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1218 size_t optlen
= strlen (option_map
[j
].name
);
1219 size_t arglen
= strlen (argv
[i
]);
1220 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1221 const char *arginfo
= option_map
[j
].arg_info
;
1226 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1228 const char *arg
= 0;
1230 if (arglen
< optlen
)
1233 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1234 if (strlen (option_map
[k
].name
) >= arglen
1235 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1237 error ("ambiguous abbreviation %s", argv
[i
]);
1241 if (k
!= ARRAY_SIZE (option_map
))
1245 if (arglen
> optlen
)
1247 /* If the option has an argument, accept that. */
1248 if (argv
[i
][optlen
] == '=')
1249 arg
= argv
[i
] + optlen
+ 1;
1251 /* If this mapping requires extra text at end of name,
1252 accept that as "argument". */
1253 else if (strchr (arginfo
, '*') != 0)
1254 arg
= argv
[i
] + optlen
;
1256 /* Otherwise, extra text at end means mismatch.
1257 Try other mappings. */
1262 else if (strchr (arginfo
, '*') != 0)
1264 error ("incomplete `%s' option", option_map
[j
].name
);
1268 /* Handle arguments. */
1269 if (strchr (arginfo
, 'a') != 0)
1275 error ("missing argument to `%s' option",
1276 option_map
[j
].name
);
1283 else if (strchr (arginfo
, '*') != 0)
1285 else if (strchr (arginfo
, 'o') == 0)
1288 error ("extraneous argument to `%s' option",
1289 option_map
[j
].name
);
1293 /* Store the translation as one argv elt or as two. */
1294 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1295 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1299 newv
[newindex
++] = option_map
[j
].equivalent
;
1300 newv
[newindex
++] = arg
;
1303 newv
[newindex
++] = option_map
[j
].equivalent
;
1311 /* Handle old-fashioned options--just copy them through,
1312 with their arguments. */
1313 else if (argv
[i
][0] == '-')
1315 const char *p
= argv
[i
] + 1;
1319 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1320 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1321 else if (WORD_SWITCH_TAKES_ARG (p
))
1322 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1323 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1326 else if (! strcmp (p
, "Xlinker"))
1328 else if (! strcmp (p
, "Xpreprocessor"))
1330 else if (! strcmp (p
, "Xassembler"))
1333 /* Watch out for an option at the end of the command line that
1334 is missing arguments, and avoid skipping past the end of the
1336 if (nskip
+ i
> argc
)
1341 newv
[newindex
++] = argv
[i
++];
1346 /* Ordinary operands, or +e options. */
1347 newv
[newindex
++] = argv
[i
++];
1357 skip_whitespace (char *p
)
1361 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1362 be considered whitespace. */
1363 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1365 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1379 /* Structures to keep track of prefixes to try when looking for files. */
1383 const char *prefix
; /* String to prepend to the path. */
1384 struct prefix_list
*next
; /* Next in linked list. */
1385 int require_machine_suffix
; /* Don't use without machine_suffix. */
1386 /* 2 means try both machine_suffix and just_machine_suffix. */
1387 int priority
; /* Sort key - priority within list. */
1388 int os_multilib
; /* 1 if OS multilib scheme should be used,
1389 0 for GCC multilib scheme. */
1394 struct prefix_list
*plist
; /* List of prefixes to try */
1395 int max_len
; /* Max length of a prefix in PLIST */
1396 const char *name
; /* Name of this list (used in config stuff) */
1399 /* List of prefixes to try when looking for executables. */
1401 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1403 /* List of prefixes to try when looking for startup (crt0) files. */
1405 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1407 /* List of prefixes to try when looking for include files. */
1409 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1411 /* Suffix to attach to directories searched for commands.
1412 This looks like `MACHINE/VERSION/'. */
1414 static const char *machine_suffix
= 0;
1416 /* Suffix to attach to directories searched for commands.
1417 This is just `MACHINE/'. */
1419 static const char *just_machine_suffix
= 0;
1421 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1423 static const char *gcc_exec_prefix
;
1425 /* Adjusted value of standard_libexec_prefix. */
1427 static const char *gcc_libexec_prefix
;
1429 /* Default prefixes to attach to command names. */
1431 #ifndef STANDARD_STARTFILE_PREFIX_1
1432 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1434 #ifndef STANDARD_STARTFILE_PREFIX_2
1435 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1438 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1439 #undef MD_EXEC_PREFIX
1440 #undef MD_STARTFILE_PREFIX
1441 #undef MD_STARTFILE_PREFIX_1
1444 /* If no prefixes defined, use the null string, which will disable them. */
1445 #ifndef MD_EXEC_PREFIX
1446 #define MD_EXEC_PREFIX ""
1448 #ifndef MD_STARTFILE_PREFIX
1449 #define MD_STARTFILE_PREFIX ""
1451 #ifndef MD_STARTFILE_PREFIX_1
1452 #define MD_STARTFILE_PREFIX_1 ""
1455 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1456 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1457 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1458 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1460 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1461 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1462 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1463 static const char *const standard_startfile_prefix_1
1464 = STANDARD_STARTFILE_PREFIX_1
;
1465 static const char *const standard_startfile_prefix_2
1466 = STANDARD_STARTFILE_PREFIX_2
;
1468 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1469 static const char *tooldir_prefix
;
1471 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1473 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1475 /* Subdirectory to use for locating libraries. Set by
1476 set_multilib_dir based on the compilation options. */
1478 static const char *multilib_dir
;
1480 /* Subdirectory to use for locating libraries in OS conventions. Set by
1481 set_multilib_dir based on the compilation options. */
1483 static const char *multilib_os_dir
;
1485 /* Structure to keep track of the specs that have been defined so far.
1486 These are accessed using %(specname) or %[specname] in a compiler
1491 /* The following 2 fields must be first */
1492 /* to allow EXTRA_SPECS to be initialized */
1493 const char *name
; /* name of the spec. */
1494 const char *ptr
; /* available ptr if no static pointer */
1496 /* The following fields are not initialized */
1497 /* by EXTRA_SPECS */
1498 const char **ptr_spec
; /* pointer to the spec itself. */
1499 struct spec_list
*next
; /* Next spec in linked list. */
1500 int name_len
; /* length of the name */
1501 int alloc_p
; /* whether string was allocated */
1504 #define INIT_STATIC_SPEC(NAME,PTR) \
1505 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1507 /* List of statically defined specs. */
1508 static struct spec_list static_specs
[] =
1510 INIT_STATIC_SPEC ("asm", &asm_spec
),
1511 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1512 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1513 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1514 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1515 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1516 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1517 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1518 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1519 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1520 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1521 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1522 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1523 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1524 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1525 INIT_STATIC_SPEC ("link", &link_spec
),
1526 INIT_STATIC_SPEC ("lib", &lib_spec
),
1527 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1528 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1529 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1530 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1531 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1532 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1533 INIT_STATIC_SPEC ("version", &compiler_version
),
1534 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1535 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1536 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1537 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1538 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1539 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1540 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1541 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1542 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1543 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1544 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1545 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1546 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1547 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1550 #ifdef EXTRA_SPECS /* additional specs needed */
1551 /* Structure to keep track of just the first two args of a spec_list.
1552 That is all that the EXTRA_SPECS macro gives us. */
1555 const char *const name
;
1556 const char *const ptr
;
1559 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1560 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1563 /* List of dynamically allocates specs that have been defined so far. */
1565 static struct spec_list
*specs
= (struct spec_list
*) 0;
1567 /* List of static spec functions. */
1569 static const struct spec_function static_spec_functions
[] =
1571 { "if-exists", if_exists_spec_function
},
1572 { "if-exists-else", if_exists_else_spec_function
},
1576 static int processing_spec_function
;
1578 /* Add appropriate libgcc specs to OBSTACK, taking into account
1579 various permutations of -shared-libgcc, -shared, and such. */
1581 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1583 #ifndef USE_LD_AS_NEEDED
1584 #define USE_LD_AS_NEEDED 0
1588 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1589 const char *static_name
, const char *eh_name
)
1593 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1594 "}%{!static:%{!static-libgcc:",
1595 #if USE_LD_AS_NEEDED
1596 "%{!shared-libgcc:", static_name
,
1597 " --as-needed ", shared_name
, " --no-as-needed}"
1598 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1601 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1602 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1603 static_name
, "}}%{shared:",
1605 "%{shared-libgcc:", shared_name
,
1606 "}%{!shared-libgcc:", static_name
, "}",
1613 obstack_grow (obstack
, buf
, strlen (buf
));
1616 #endif /* ENABLE_SHARED_LIBGCC */
1618 /* Initialize the specs lookup routines. */
1623 struct spec_list
*next
= (struct spec_list
*) 0;
1624 struct spec_list
*sl
= (struct spec_list
*) 0;
1628 return; /* Already initialized. */
1631 notice ("Using built-in specs.\n");
1634 extra_specs
= xcalloc (sizeof (struct spec_list
),
1635 ARRAY_SIZE (extra_specs_1
));
1637 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1639 sl
= &extra_specs
[i
];
1640 sl
->name
= extra_specs_1
[i
].name
;
1641 sl
->ptr
= extra_specs_1
[i
].ptr
;
1643 sl
->name_len
= strlen (sl
->name
);
1644 sl
->ptr_spec
= &sl
->ptr
;
1649 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1650 on ?: in file-scope variable initializations. */
1651 asm_debug
= ASM_DEBUG_SPEC
;
1653 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1655 sl
= &static_specs
[i
];
1660 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1661 /* ??? If neither -shared-libgcc nor --static-libgcc was
1662 seen, then we should be making an educated guess. Some proposed
1663 heuristics for ELF include:
1665 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1666 program will be doing dynamic loading, which will likely
1667 need the shared libgcc.
1669 (2) If "-ldl", then it's also a fair bet that we're doing
1672 (3) For each ET_DYN we're linking against (either through -lfoo
1673 or /some/path/foo.so), check to see whether it or one of
1674 its dependencies depends on a shared libgcc.
1678 If the runtime is fixed to look for program headers instead
1679 of calling __register_frame_info at all, for each object,
1680 use the shared libgcc if any EH symbol referenced.
1682 If crtstuff is fixed to not invoke __register_frame_info
1683 automatically, for each object, use the shared libgcc if
1684 any non-empty unwind section found.
1686 Doing any of this probably requires invoking an external program to
1687 do the actual object file scanning. */
1689 const char *p
= libgcc_spec
;
1692 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1693 when given the proper command line arguments. */
1696 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1698 init_gcc_specs (&obstack
,
1699 #ifdef NO_SHARED_LIBGCC_MULTILIB
1707 #ifdef USE_LIBUNWIND_EXCEPTIONS
1715 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1717 /* Ug. We don't know shared library extensions. Hope that
1718 systems that use this form don't do shared libraries. */
1719 init_gcc_specs (&obstack
,
1720 #ifdef NO_SHARED_LIBGCC_MULTILIB
1728 #ifdef USE_LIBUNWIND_EXCEPTIONS
1737 obstack_1grow (&obstack
, *p
);
1738 in_sep
= (*p
== ' ');
1743 obstack_1grow (&obstack
, '\0');
1744 libgcc_spec
= obstack_finish (&obstack
);
1747 #ifdef USE_AS_TRADITIONAL_FORMAT
1748 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1750 static const char tf
[] = "--traditional-format ";
1751 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1752 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1753 asm_spec
= obstack_finish (&obstack
);
1757 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1758 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1759 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1760 link_spec
= obstack_finish (&obstack
);
1766 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1767 removed; If the spec starts with a + then SPEC is added to the end of the
1771 set_spec (const char *name
, const char *spec
)
1773 struct spec_list
*sl
;
1774 const char *old_spec
;
1775 int name_len
= strlen (name
);
1778 /* If this is the first call, initialize the statically allocated specs. */
1781 struct spec_list
*next
= (struct spec_list
*) 0;
1782 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1784 sl
= &static_specs
[i
];
1791 /* See if the spec already exists. */
1792 for (sl
= specs
; sl
; sl
= sl
->next
)
1793 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1798 /* Not found - make it. */
1799 sl
= xmalloc (sizeof (struct spec_list
));
1800 sl
->name
= xstrdup (name
);
1801 sl
->name_len
= name_len
;
1802 sl
->ptr_spec
= &sl
->ptr
;
1804 *(sl
->ptr_spec
) = "";
1809 old_spec
= *(sl
->ptr_spec
);
1810 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1811 ? concat (old_spec
, spec
+ 1, NULL
)
1816 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1819 /* Free the old spec. */
1820 if (old_spec
&& sl
->alloc_p
)
1821 free ((void *) old_spec
);
1826 /* Accumulate a command (program name and args), and run it. */
1828 /* Vector of pointers to arguments in the current line of specifications. */
1830 static const char **argbuf
;
1832 /* Number of elements allocated in argbuf. */
1834 static int argbuf_length
;
1836 /* Number of elements in argbuf currently in use (containing args). */
1838 static int argbuf_index
;
1840 /* Position in the argbuf array containing the name of the output file
1841 (the value associated with the "-o" flag). */
1843 static int have_o_argbuf_index
= 0;
1845 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1846 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1849 static struct temp_name
{
1850 const char *suffix
; /* suffix associated with the code. */
1851 int length
; /* strlen (suffix). */
1852 int unique
; /* Indicates whether %g or %u/%U was used. */
1853 const char *filename
; /* associated filename. */
1854 int filename_length
; /* strlen (filename). */
1855 struct temp_name
*next
;
1858 /* Number of commands executed so far. */
1860 static int execution_count
;
1862 /* Number of commands that exited with a signal. */
1864 static int signal_count
;
1866 /* Name with which this program was invoked. */
1868 static const char *programname
;
1870 /* Allocate the argument vector. */
1876 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1879 /* Clear out the vector of arguments (after a command is executed). */
1887 /* Add one argument to the vector at the end.
1888 This is done when a space is seen or at the end of the line.
1889 If DELETE_ALWAYS is nonzero, the arg is a filename
1890 and the file should be deleted eventually.
1891 If DELETE_FAILURE is nonzero, the arg is a filename
1892 and the file should be deleted if this compilation fails. */
1895 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1897 if (argbuf_index
+ 1 == argbuf_length
)
1898 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1900 argbuf
[argbuf_index
++] = arg
;
1901 argbuf
[argbuf_index
] = 0;
1903 if (strcmp (arg
, "-o") == 0)
1904 have_o_argbuf_index
= argbuf_index
;
1905 if (delete_always
|| delete_failure
)
1906 record_temp_file (arg
, delete_always
, delete_failure
);
1909 /* Load specs from a file name named FILENAME, replacing occurrences of
1910 various different types of line-endings, \r\n, \n\r and just \r, with
1914 load_specs (const char *filename
)
1918 struct stat statbuf
;
1925 notice ("Reading specs from %s\n", filename
);
1927 /* Open and stat the file. */
1928 desc
= open (filename
, O_RDONLY
, 0);
1930 pfatal_with_name (filename
);
1931 if (stat (filename
, &statbuf
) < 0)
1932 pfatal_with_name (filename
);
1934 /* Read contents of file into BUFFER. */
1935 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1936 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1938 pfatal_with_name (filename
);
1939 buffer
[readlen
] = 0;
1942 specs
= xmalloc (readlen
+ 1);
1944 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1950 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1952 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1966 /* Read compilation specs from a file named FILENAME,
1967 replacing the default ones.
1969 A suffix which starts with `*' is a definition for
1970 one of the machine-specific sub-specs. The "suffix" should be
1971 *asm, *cc1, *cpp, *link, *startfile, etc.
1972 The corresponding spec is stored in asm_spec, etc.,
1973 rather than in the `compilers' vector.
1975 Anything invalid in the file is a fatal error. */
1978 read_specs (const char *filename
, int main_p
)
1983 buffer
= load_specs (filename
);
1985 /* Scan BUFFER for specs, putting them in the vector. */
1991 char *in
, *out
, *p1
, *p2
, *p3
;
1993 /* Advance P in BUFFER to the next nonblank nocomment line. */
1994 p
= skip_whitespace (p
);
1998 /* Is this a special command that starts with '%'? */
1999 /* Don't allow this for the main specs file, since it would
2000 encourage people to overwrite it. */
2001 if (*p
== '%' && !main_p
)
2004 while (*p
&& *p
!= '\n')
2010 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2011 && (p1
[sizeof "%include" - 1] == ' '
2012 || p1
[sizeof "%include" - 1] == '\t'))
2016 p1
+= sizeof ("%include");
2017 while (*p1
== ' ' || *p1
== '\t')
2020 if (*p1
++ != '<' || p
[-2] != '>')
2021 fatal ("specs %%include syntax malformed after %ld characters",
2022 (long) (p1
- buffer
+ 1));
2025 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2026 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2029 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2030 && (p1
[sizeof "%include_noerr" - 1] == ' '
2031 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2035 p1
+= sizeof "%include_noerr";
2036 while (*p1
== ' ' || *p1
== '\t')
2039 if (*p1
++ != '<' || p
[-2] != '>')
2040 fatal ("specs %%include syntax malformed after %ld characters",
2041 (long) (p1
- buffer
+ 1));
2044 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2046 read_specs (new_filename
, FALSE
);
2047 else if (verbose_flag
)
2048 notice ("could not find specs file %s\n", p1
);
2051 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2052 && (p1
[sizeof "%rename" - 1] == ' '
2053 || p1
[sizeof "%rename" - 1] == '\t'))
2056 struct spec_list
*sl
;
2057 struct spec_list
*newsl
;
2059 /* Get original name. */
2060 p1
+= sizeof "%rename";
2061 while (*p1
== ' ' || *p1
== '\t')
2064 if (! ISALPHA ((unsigned char) *p1
))
2065 fatal ("specs %%rename syntax malformed after %ld characters",
2066 (long) (p1
- buffer
));
2069 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2072 if (*p2
!= ' ' && *p2
!= '\t')
2073 fatal ("specs %%rename syntax malformed after %ld characters",
2074 (long) (p2
- buffer
));
2078 while (*p2
== ' ' || *p2
== '\t')
2081 if (! ISALPHA ((unsigned char) *p2
))
2082 fatal ("specs %%rename syntax malformed after %ld characters",
2083 (long) (p2
- buffer
));
2085 /* Get new spec name. */
2087 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2091 fatal ("specs %%rename syntax malformed after %ld characters",
2092 (long) (p3
- buffer
));
2095 for (sl
= specs
; sl
; sl
= sl
->next
)
2096 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2100 fatal ("specs %s spec was not found to be renamed", p1
);
2102 if (strcmp (p1
, p2
) == 0)
2105 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2106 if (strcmp (newsl
->name
, p2
) == 0)
2107 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2112 notice ("rename spec %s to %s\n", p1
, p2
);
2114 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2118 set_spec (p2
, *(sl
->ptr_spec
));
2120 free ((void *) *(sl
->ptr_spec
));
2122 *(sl
->ptr_spec
) = "";
2127 fatal ("specs unknown %% command after %ld characters",
2128 (long) (p1
- buffer
));
2131 /* Find the colon that should end the suffix. */
2133 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2136 /* The colon shouldn't be missing. */
2138 fatal ("specs file malformed after %ld characters",
2139 (long) (p1
- buffer
));
2141 /* Skip back over trailing whitespace. */
2143 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2146 /* Copy the suffix to a string. */
2147 suffix
= save_string (p
, p2
- p
);
2148 /* Find the next line. */
2149 p
= skip_whitespace (p1
+ 1);
2151 fatal ("specs file malformed after %ld characters",
2152 (long) (p
- buffer
));
2155 /* Find next blank line or end of string. */
2156 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2159 /* Specs end at the blank line and do not include the newline. */
2160 spec
= save_string (p
, p1
- p
);
2163 /* Delete backslash-newline sequences from the spec. */
2168 if (in
[0] == '\\' && in
[1] == '\n')
2170 else if (in
[0] == '#')
2171 while (*in
&& *in
!= '\n')
2179 if (suffix
[0] == '*')
2181 if (! strcmp (suffix
, "*link_command"))
2182 link_command_spec
= spec
;
2184 set_spec (suffix
+ 1, spec
);
2188 /* Add this pair to the vector. */
2190 = xrealloc (compilers
,
2191 (n_compilers
+ 2) * sizeof (struct compiler
));
2193 compilers
[n_compilers
].suffix
= suffix
;
2194 compilers
[n_compilers
].spec
= spec
;
2196 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2200 link_command_spec
= spec
;
2203 if (link_command_spec
== 0)
2204 fatal ("spec file has no spec for linking");
2207 /* Record the names of temporary files we tell compilers to write,
2208 and delete them at the end of the run. */
2210 /* This is the common prefix we use to make temp file names.
2211 It is chosen once for each run of this program.
2212 It is substituted into a spec by %g or %j.
2213 Thus, all temp file names contain this prefix.
2214 In practice, all temp file names start with this prefix.
2216 This prefix comes from the envvar TMPDIR if it is defined;
2217 otherwise, from the P_tmpdir macro if that is defined;
2218 otherwise, in /usr/tmp or /tmp;
2219 or finally the current directory if all else fails. */
2221 static const char *temp_filename
;
2223 /* Length of the prefix. */
2225 static int temp_filename_length
;
2227 /* Define the list of temporary files to delete. */
2232 struct temp_file
*next
;
2235 /* Queue of files to delete on success or failure of compilation. */
2236 static struct temp_file
*always_delete_queue
;
2237 /* Queue of files to delete on failure of compilation. */
2238 static struct temp_file
*failure_delete_queue
;
2240 /* Record FILENAME as a file to be deleted automatically.
2241 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2242 otherwise delete it in any case.
2243 FAIL_DELETE nonzero means delete it if a compilation step fails;
2244 otherwise delete it in any case. */
2247 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2249 char *const name
= xstrdup (filename
);
2253 struct temp_file
*temp
;
2254 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2255 if (! strcmp (name
, temp
->name
))
2258 temp
= xmalloc (sizeof (struct temp_file
));
2259 temp
->next
= always_delete_queue
;
2261 always_delete_queue
= temp
;
2268 struct temp_file
*temp
;
2269 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2270 if (! strcmp (name
, temp
->name
))
2273 temp
= xmalloc (sizeof (struct temp_file
));
2274 temp
->next
= failure_delete_queue
;
2276 failure_delete_queue
= temp
;
2282 /* Delete all the temporary files whose names we previously recorded. */
2284 #ifndef DELETE_IF_ORDINARY
2285 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2288 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2289 if (unlink (NAME) < 0) \
2291 perror_with_name (NAME); \
2296 delete_if_ordinary (const char *name
)
2302 printf ("Delete %s? (y or n) ", name
);
2306 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2309 if (i
== 'y' || i
== 'Y')
2311 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2315 delete_temp_files (void)
2317 struct temp_file
*temp
;
2319 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2320 delete_if_ordinary (temp
->name
);
2321 always_delete_queue
= 0;
2324 /* Delete all the files to be deleted on error. */
2327 delete_failure_queue (void)
2329 struct temp_file
*temp
;
2331 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2332 delete_if_ordinary (temp
->name
);
2336 clear_failure_queue (void)
2338 failure_delete_queue
= 0;
2341 /* Build a list of search directories from PATHS.
2342 PREFIX is a string to prepend to the list.
2343 If CHECK_DIR_P is nonzero we ensure the directory exists.
2344 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2345 It is also used by the --print-search-dirs flag. */
2348 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2351 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2353 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2354 int first_time
= TRUE
;
2355 struct prefix_list
*pprefix
;
2357 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2358 obstack_1grow (&collect_obstack
, '=');
2360 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2362 int len
= strlen (pprefix
->prefix
);
2366 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2369 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2372 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2373 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2376 if (just_machine_suffix
2377 && pprefix
->require_machine_suffix
== 2
2379 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2382 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2385 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2386 obstack_grow (&collect_obstack
, just_machine_suffix
,
2390 if (! pprefix
->require_machine_suffix
)
2393 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2396 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2400 obstack_1grow (&collect_obstack
, '\0');
2401 return obstack_finish (&collect_obstack
);
2404 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2408 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2410 putenv (build_search_list (paths
, env_var
, 1));
2413 /* Check whether NAME can be accessed in MODE. This is like access,
2414 except that it never considers directories to be executable. */
2417 access_check (const char *name
, int mode
)
2423 if (stat (name
, &st
) < 0
2424 || S_ISDIR (st
.st_mode
))
2428 return access (name
, mode
);
2431 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2432 access to check permissions.
2433 Return 0 if not found, otherwise return its name, allocated with malloc. */
2436 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2440 const char *const file_suffix
=
2441 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2442 struct prefix_list
*pl
;
2443 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2444 const char *multilib_name
, *multilib_os_name
;
2446 #ifdef DEFAULT_ASSEMBLER
2447 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2448 return xstrdup (DEFAULT_ASSEMBLER
);
2451 #ifdef DEFAULT_LINKER
2452 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2453 return xstrdup (DEFAULT_LINKER
);
2457 len
+= strlen (machine_suffix
);
2459 multilib_name
= name
;
2460 multilib_os_name
= name
;
2461 if (multilib
&& multilib_os_dir
)
2463 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2464 int len2
= strlen (multilib_os_dir
) + 1;
2466 len
+= len1
> len2
? len1
: len2
;
2468 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2470 if (strcmp (multilib_os_dir
, ".") != 0)
2471 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2475 temp
= xmalloc (len
);
2477 /* Determine the filename to execute (special case for absolute paths). */
2479 if (IS_ABSOLUTE_PATH (name
))
2481 if (access (name
, mode
) == 0)
2483 strcpy (temp
, name
);
2488 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2490 const char *this_name
2491 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2495 /* Some systems have a suffix for executable files.
2496 So try appending that first. */
2497 if (file_suffix
[0] != 0)
2499 strcpy (temp
, pl
->prefix
);
2500 strcat (temp
, machine_suffix
);
2501 strcat (temp
, multilib_name
);
2502 strcat (temp
, file_suffix
);
2503 if (access_check (temp
, mode
) == 0)
2507 /* Now try just the multilib_name. */
2508 strcpy (temp
, pl
->prefix
);
2509 strcat (temp
, machine_suffix
);
2510 strcat (temp
, multilib_name
);
2511 if (access_check (temp
, mode
) == 0)
2515 /* Certain prefixes are tried with just the machine type,
2516 not the version. This is used for finding as, ld, etc. */
2517 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2519 /* Some systems have a suffix for executable files.
2520 So try appending that first. */
2521 if (file_suffix
[0] != 0)
2523 strcpy (temp
, pl
->prefix
);
2524 strcat (temp
, just_machine_suffix
);
2525 strcat (temp
, multilib_name
);
2526 strcat (temp
, file_suffix
);
2527 if (access_check (temp
, mode
) == 0)
2531 strcpy (temp
, pl
->prefix
);
2532 strcat (temp
, just_machine_suffix
);
2533 strcat (temp
, multilib_name
);
2534 if (access_check (temp
, mode
) == 0)
2538 /* Certain prefixes can't be used without the machine suffix
2539 when the machine or version is explicitly specified. */
2540 if (! pl
->require_machine_suffix
)
2542 /* Some systems have a suffix for executable files.
2543 So try appending that first. */
2544 if (file_suffix
[0] != 0)
2546 strcpy (temp
, pl
->prefix
);
2547 strcat (temp
, this_name
);
2548 strcat (temp
, file_suffix
);
2549 if (access_check (temp
, mode
) == 0)
2553 strcpy (temp
, pl
->prefix
);
2554 strcat (temp
, this_name
);
2555 if (access_check (temp
, mode
) == 0)
2564 /* Ranking of prefixes in the sort list. -B prefixes are put before
2567 enum path_prefix_priority
2569 PREFIX_PRIORITY_B_OPT
,
2570 PREFIX_PRIORITY_LAST
2573 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2574 order according to PRIORITY. Within each PRIORITY, new entries are
2577 If WARN is nonzero, we will warn if no file is found
2578 through this prefix. WARN should point to an int
2579 which will be set to 1 if this entry is used.
2581 COMPONENT is the value to be passed to update_path.
2583 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2584 the complete value of machine_suffix.
2585 2 means try both machine_suffix and just_machine_suffix. */
2588 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2589 const char *component
, /* enum prefix_priority */ int priority
,
2590 int require_machine_suffix
, int os_multilib
)
2592 struct prefix_list
*pl
, **prev
;
2595 for (prev
= &pprefix
->plist
;
2596 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2597 prev
= &(*prev
)->next
)
2600 /* Keep track of the longest prefix. */
2602 prefix
= update_path (prefix
, component
);
2603 len
= strlen (prefix
);
2604 if (len
> pprefix
->max_len
)
2605 pprefix
->max_len
= len
;
2607 pl
= xmalloc (sizeof (struct prefix_list
));
2608 pl
->prefix
= prefix
;
2609 pl
->require_machine_suffix
= require_machine_suffix
;
2610 pl
->priority
= priority
;
2611 pl
->os_multilib
= os_multilib
;
2613 /* Insert after PREV. */
2618 /* Same as add_prefix, but prepending target_system_root to prefix. */
2620 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2621 const char *component
,
2622 /* enum prefix_priority */ int priority
,
2623 int require_machine_suffix
, int os_multilib
)
2625 if (!IS_ABSOLUTE_PATH (prefix
))
2628 if (target_system_root
)
2630 if (target_sysroot_suffix
)
2631 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2632 prefix
= concat (target_system_root
, prefix
, NULL
);
2634 /* We have to override this because GCC's notion of sysroot
2635 moves along with GCC. */
2639 add_prefix (pprefix
, prefix
, component
, priority
,
2640 require_machine_suffix
, os_multilib
);
2643 /* Execute the command specified by the arguments on the current line of spec.
2644 When using pipes, this includes several piped-together commands
2645 with `|' between them.
2647 Return 0 if successful, -1 if failed. */
2653 int n_commands
; /* # of command. */
2657 const char *prog
; /* program name. */
2658 const char **argv
; /* vector of args. */
2659 int pid
; /* pid of process for this command. */
2662 struct command
*commands
; /* each command buffer with above info. */
2664 if (processing_spec_function
)
2667 /* Count # of piped commands. */
2668 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2669 if (strcmp (argbuf
[i
], "|") == 0)
2672 /* Get storage for each command. */
2673 commands
= alloca (n_commands
* sizeof (struct command
));
2675 /* Split argbuf into its separate piped processes,
2676 and record info about each one.
2677 Also search for the programs that are to be run. */
2679 commands
[0].prog
= argbuf
[0]; /* first command. */
2680 commands
[0].argv
= &argbuf
[0];
2681 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2684 commands
[0].argv
[0] = string
;
2686 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2687 if (strcmp (argbuf
[i
], "|") == 0)
2688 { /* each command. */
2689 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2690 fatal ("-pipe not supported");
2692 argbuf
[i
] = 0; /* termination of command args. */
2693 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2694 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2695 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2698 commands
[n_commands
].argv
[0] = string
;
2702 argbuf
[argbuf_index
] = 0;
2704 /* If -v, print what we are about to do, and maybe query. */
2708 /* For help listings, put a blank line between sub-processes. */
2709 if (print_help_list
)
2710 fputc ('\n', stderr
);
2712 /* Print each piped command as a separate line. */
2713 for (i
= 0; i
< n_commands
; i
++)
2715 const char *const *j
;
2717 if (verbose_only_flag
)
2719 for (j
= commands
[i
].argv
; *j
; j
++)
2722 fprintf (stderr
, " \"");
2723 for (p
= *j
; *p
; ++p
)
2725 if (*p
== '"' || *p
== '\\' || *p
== '$')
2726 fputc ('\\', stderr
);
2729 fputc ('"', stderr
);
2733 for (j
= commands
[i
].argv
; *j
; j
++)
2734 fprintf (stderr
, " %s", *j
);
2736 /* Print a pipe symbol after all but the last command. */
2737 if (i
+ 1 != n_commands
)
2738 fprintf (stderr
, " |");
2739 fprintf (stderr
, "\n");
2742 if (verbose_only_flag
!= 0)
2744 /* verbose_only_flag should act as if the spec was
2745 executed, so increment execution_count before
2746 returning. This prevents spurious warnings about
2747 unused linker input files, etc. */
2752 notice ("\nGo ahead? (y or n) ");
2756 while (getchar () != '\n')
2759 if (i
!= 'y' && i
!= 'Y')
2764 #ifdef ENABLE_VALGRIND_CHECKING
2765 /* Run the each command through valgrind. To simplify prepending the
2766 path to valgrind and the option "-q" (for quiet operation unless
2767 something triggers), we allocate a separate argv array. */
2769 for (i
= 0; i
< n_commands
; i
++)
2775 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2778 argv
= alloca ((argc
+ 3) * sizeof (char *));
2780 argv
[0] = VALGRIND_PATH
;
2782 for (j
= 2; j
< argc
+ 2; j
++)
2783 argv
[j
] = commands
[i
].argv
[j
- 2];
2786 commands
[i
].argv
= argv
;
2787 commands
[i
].prog
= argv
[0];
2791 /* Run each piped subprocess. */
2793 for (i
= 0; i
< n_commands
; i
++)
2795 char *errmsg_fmt
, *errmsg_arg
;
2796 const char *string
= commands
[i
].argv
[0];
2798 /* For some bizarre reason, the second argument of execvp() is
2799 char *const *, not const char *const *. */
2800 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2801 programname
, temp_filename
,
2802 &errmsg_fmt
, &errmsg_arg
,
2803 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2804 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2805 | (string
== commands
[i
].prog
2806 ? PEXECUTE_SEARCH
: 0)
2807 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2809 if (commands
[i
].pid
== -1)
2810 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2812 if (string
!= commands
[i
].prog
)
2813 free ((void *) string
);
2818 /* Wait for all the subprocesses to finish.
2819 We don't care what order they finish in;
2820 we know that N_COMMANDS waits will get them all.
2821 Ignore subprocesses that we don't know about,
2822 since they can be spawned by the process that exec'ed us. */
2826 #ifdef HAVE_GETRUSAGE
2828 double ut
= 0.0, st
= 0.0;
2831 for (i
= 0; i
< n_commands
;)
2837 pid
= pwait (commands
[i
].pid
, &status
, 0);
2841 #ifdef HAVE_GETRUSAGE
2844 /* getrusage returns the total resource usage of all children
2845 up to now. Copy the previous values into prus, get the
2846 current statistics, then take the difference. */
2849 getrusage (RUSAGE_CHILDREN
, &rus
);
2850 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2851 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2852 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2854 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2855 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2856 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2860 for (j
= 0; j
< n_commands
; j
++)
2861 if (commands
[j
].pid
== pid
)
2864 if (WIFSIGNALED (status
))
2867 /* SIGPIPE is a special case. It happens in -pipe mode
2868 when the compiler dies before the preprocessor is
2869 done, or the assembler dies before the compiler is
2870 done. There's generally been an error already, and
2871 this is just fallout. So don't generate another error
2872 unless we would otherwise have succeeded. */
2873 if (WTERMSIG (status
) == SIGPIPE
2874 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2879 Internal error: %s (program %s)\n\
2880 Please submit a full bug report.\n\
2881 See %s for instructions.",
2882 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2887 else if (WIFEXITED (status
)
2888 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2890 if (WEXITSTATUS (status
) > greatest_status
)
2891 greatest_status
= WEXITSTATUS (status
);
2894 #ifdef HAVE_GETRUSAGE
2895 if (report_times
&& ut
+ st
!= 0)
2896 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2905 /* Find all the switches given to us
2906 and make a vector describing them.
2907 The elements of the vector are strings, one per switch given.
2908 If a switch uses following arguments, then the `part1' field
2909 is the switch itself and the `args' field
2910 is a null-terminated vector containing the following arguments.
2911 The `live_cond' field is:
2913 1 if the switch is true in a conditional spec,
2914 -1 if false (overridden by a later switch)
2915 -2 if this switch should be ignored (used in %<S)
2916 The `validated' field is nonzero if any spec has looked at this switch;
2917 if it remains zero at the end of the run, it must be meaningless. */
2920 #define SWITCH_FALSE -1
2921 #define SWITCH_IGNORE -2
2922 #define SWITCH_LIVE 1
2929 unsigned char validated
;
2930 unsigned char ordering
;
2933 static struct switchstr
*switches
;
2935 static int n_switches
;
2940 const char *language
;
2941 struct compiler
*incompiler
;
2946 /* Also a vector of input files specified. */
2948 static struct infile
*infiles
;
2952 /* True if multiple input files are being compiled to a single
2955 static bool combine_inputs
;
2957 /* This counts the number of libraries added by lang_specific_driver, so that
2958 we can tell if there were any user supplied any files or libraries. */
2960 static int added_libraries
;
2962 /* And a vector of corresponding output files is made up later. */
2964 const char **outfiles
;
2966 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2968 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2969 is true if we should look for an executable suffix. DO_OBJ
2970 is true if we should look for an object suffix. */
2973 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2974 int do_obj ATTRIBUTE_UNUSED
)
2976 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2984 len
= strlen (name
);
2986 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2987 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2988 if (do_obj
&& len
> 2
2989 && name
[len
- 2] == '.'
2990 && name
[len
- 1] == 'o')
2992 obstack_grow (&obstack
, name
, len
- 2);
2993 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2994 name
= obstack_finish (&obstack
);
2998 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2999 /* If there is no filetype, make it the executable suffix (which includes
3000 the "."). But don't get confused if we have just "-o". */
3001 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3004 for (i
= len
- 1; i
>= 0; i
--)
3005 if (IS_DIR_SEPARATOR (name
[i
]))
3008 for (i
++; i
< len
; i
++)
3012 obstack_grow (&obstack
, name
, len
);
3013 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3014 strlen (TARGET_EXECUTABLE_SUFFIX
));
3015 name
= obstack_finish (&obstack
);
3022 /* Display the command line switches accepted by gcc. */
3026 printf (_("Usage: %s [options] file...\n"), programname
);
3027 fputs (_("Options:\n"), stdout
);
3029 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3030 fputs (_(" --help Display this information\n"), stdout
);
3031 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3033 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3034 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3035 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3036 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3037 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3038 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3039 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3040 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3041 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3043 -print-multi-lib Display the mapping between command line options and\n\
3044 multiple library search directories\n"), stdout
);
3045 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3046 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3047 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3048 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3049 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3050 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3051 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3052 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3053 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3054 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3055 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3056 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3057 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3058 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3059 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3060 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3061 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3062 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3063 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3064 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3065 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3066 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3068 -x <language> Specify the language of the following input files\n\
3069 Permissible languages include: c c++ assembler none\n\
3070 'none' means revert to the default behavior of\n\
3071 guessing the language based on the file's extension\n\
3075 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3076 passed on to the various sub-processes invoked by %s. In order to pass\n\
3077 other options on to these processes the -W<letter> options must be used.\n\
3080 /* The rest of the options are displayed by invocations of the various
3085 add_preprocessor_option (const char *option
, int len
)
3087 n_preprocessor_options
++;
3089 if (! preprocessor_options
)
3090 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3092 preprocessor_options
= xrealloc (preprocessor_options
,
3093 n_preprocessor_options
* sizeof (char *));
3095 preprocessor_options
[n_preprocessor_options
- 1] =
3096 save_string (option
, len
);
3100 add_assembler_option (const char *option
, int len
)
3102 n_assembler_options
++;
3104 if (! assembler_options
)
3105 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3107 assembler_options
= xrealloc (assembler_options
,
3108 n_assembler_options
* sizeof (char *));
3110 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3114 add_linker_option (const char *option
, int len
)
3118 if (! linker_options
)
3119 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3121 linker_options
= xrealloc (linker_options
,
3122 n_linker_options
* sizeof (char *));
3124 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3127 /* Create the vector `switches' and its contents.
3128 Store its length in `n_switches'. */
3131 process_command (int argc
, const char **argv
)
3136 const char *spec_lang
= 0;
3137 int last_language_n_infiles
;
3139 int lang_n_infiles
= 0;
3140 #ifdef MODIFY_TARGET_NAME
3141 int is_modify_target_name
;
3145 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3149 added_libraries
= 0;
3151 /* Figure compiler version from version string. */
3153 compiler_version
= temp1
= xstrdup (version_string
);
3155 for (; *temp1
; ++temp1
)
3164 /* If there is a -V or -b option (or both), process it now, before
3165 trying to interpret the rest of the command line. */
3166 if (argc
> 1 && argv
[1][0] == '-'
3167 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3169 const char *new_version
= DEFAULT_TARGET_VERSION
;
3170 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3171 const char *progname
= argv
[0];
3176 while (argc
> 1 && argv
[1][0] == '-'
3177 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3179 char opt
= argv
[1][1];
3181 if (argv
[1][2] != '\0')
3194 fatal ("`-%c' option must have argument", opt
);
3201 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3202 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3204 new_argv0
= xmemdup (progname
, baselen
,
3205 baselen
+ concat_length (new_version
, new_machine
,
3206 "-gcc-", NULL
) + 1);
3207 strcpy (new_argv0
+ baselen
, new_machine
);
3208 strcat (new_argv0
, "-gcc-");
3209 strcat (new_argv0
, new_version
);
3211 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3212 (argc
+ 1) * sizeof (argv
[0]));
3213 new_argv
[0] = new_argv0
;
3215 execvp (new_argv0
, new_argv
);
3216 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3219 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3220 see if we can create it from the pathname specified in argv[0]. */
3222 gcc_libexec_prefix
= standard_libexec_prefix
;
3224 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3225 if (!gcc_exec_prefix
)
3227 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3228 standard_exec_prefix
);
3229 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3230 standard_bindir_prefix
,
3231 standard_libexec_prefix
);
3232 if (gcc_exec_prefix
)
3233 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3236 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3237 standard_exec_prefix
,
3238 standard_libexec_prefix
);
3242 if (gcc_exec_prefix
)
3244 int len
= strlen (gcc_exec_prefix
);
3246 if (len
> (int) sizeof ("/lib/gcc/") - 1
3247 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3249 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3250 if (IS_DIR_SEPARATOR (*temp
)
3251 && strncmp (temp
+ 1, "lib", 3) == 0
3252 && IS_DIR_SEPARATOR (temp
[4])
3253 && strncmp (temp
+ 5, "gcc", 3) == 0)
3254 len
-= sizeof ("/lib/gcc/") - 1;
3257 set_std_prefix (gcc_exec_prefix
, len
);
3258 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3259 PREFIX_PRIORITY_LAST
, 0, 0);
3260 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3261 PREFIX_PRIORITY_LAST
, 0, 0);
3264 /* COMPILER_PATH and LIBRARY_PATH have values
3265 that are lists of directory names with colons. */
3267 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3270 const char *startp
, *endp
;
3271 char *nstore
= alloca (strlen (temp
) + 3);
3273 startp
= endp
= temp
;
3276 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3278 strncpy (nstore
, startp
, endp
- startp
);
3280 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3281 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3283 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3284 nstore
[endp
- startp
+ 1] = 0;
3287 nstore
[endp
- startp
] = 0;
3288 add_prefix (&exec_prefixes
, nstore
, 0,
3289 PREFIX_PRIORITY_LAST
, 0, 0);
3290 add_prefix (&include_prefixes
, nstore
, 0,
3291 PREFIX_PRIORITY_LAST
, 0, 0);
3294 endp
= startp
= endp
+ 1;
3301 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3302 if (temp
&& *cross_compile
== '0')
3304 const char *startp
, *endp
;
3305 char *nstore
= alloca (strlen (temp
) + 3);
3307 startp
= endp
= temp
;
3310 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3312 strncpy (nstore
, startp
, endp
- startp
);
3314 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3315 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3317 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3318 nstore
[endp
- startp
+ 1] = 0;
3321 nstore
[endp
- startp
] = 0;
3322 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3323 PREFIX_PRIORITY_LAST
, 0, 1);
3326 endp
= startp
= endp
+ 1;
3333 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3334 GET_ENVIRONMENT (temp
, "LPATH");
3335 if (temp
&& *cross_compile
== '0')
3337 const char *startp
, *endp
;
3338 char *nstore
= alloca (strlen (temp
) + 3);
3340 startp
= endp
= temp
;
3343 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3345 strncpy (nstore
, startp
, endp
- startp
);
3347 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3348 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3350 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3351 nstore
[endp
- startp
+ 1] = 0;
3354 nstore
[endp
- startp
] = 0;
3355 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3356 PREFIX_PRIORITY_LAST
, 0, 1);
3359 endp
= startp
= endp
+ 1;
3366 /* Convert new-style -- options to old-style. */
3367 translate_options (&argc
, (const char *const **) &argv
);
3369 /* Do language-specific adjustment/addition of flags. */
3370 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3372 /* Scan argv twice. Here, the first time, just count how many switches
3373 there will be in their vector, and how many input files in theirs.
3374 Here we also parse the switches that cc itself uses (e.g. -v). */
3376 for (i
= 1; i
< argc
; i
++)
3378 if (! strcmp (argv
[i
], "-dumpspecs"))
3380 struct spec_list
*sl
;
3382 for (sl
= specs
; sl
; sl
= sl
->next
)
3383 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3384 if (link_command_spec
)
3385 printf ("*link_command:\n%s\n\n", link_command_spec
);
3388 else if (! strcmp (argv
[i
], "-dumpversion"))
3390 printf ("%s\n", spec_version
);
3393 else if (! strcmp (argv
[i
], "-dumpmachine"))
3395 printf ("%s\n", spec_machine
);
3398 else if (strcmp (argv
[i
], "-fversion") == 0)
3400 /* translate_options () has turned --version into -fversion. */
3401 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3402 printf ("Copyright %s 2004 Free Software Foundation, Inc.\n",
3404 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3405 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3409 else if (strcmp (argv
[i
], "-fhelp") == 0)
3411 /* translate_options () has turned --help into -fhelp. */
3412 print_help_list
= 1;
3414 /* We will be passing a dummy file on to the sub-processes. */
3418 /* CPP driver cannot obtain switch from cc1_options. */
3420 add_preprocessor_option ("--help", 6);
3421 add_assembler_option ("--help", 6);
3422 add_linker_option ("--help", 6);
3424 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3426 /* translate_options() has turned --target-help into -ftarget-help. */
3427 target_help_flag
= 1;
3429 /* We will be passing a dummy file on to the sub-processes. */
3433 /* CPP driver cannot obtain switch from cc1_options. */
3435 add_preprocessor_option ("--target-help", 13);
3436 add_assembler_option ("--target-help", 13);
3437 add_linker_option ("--target-help", 13);
3439 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3441 pass_exit_codes
= 1;
3444 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3445 print_search_dirs
= 1;
3446 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3447 print_file_name
= "libgcc.a";
3448 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3449 print_file_name
= argv
[i
] + 17;
3450 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3451 print_prog_name
= argv
[i
] + 17;
3452 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3453 print_multi_lib
= 1;
3454 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3455 print_multi_directory
= 1;
3456 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3457 print_multi_os_directory
= 1;
3458 else if (! strncmp (argv
[i
], "-Wa,", 4))
3461 /* Pass the rest of this option to the assembler. */
3463 /* Split the argument at commas. */
3465 for (j
= 4; argv
[i
][j
]; j
++)
3466 if (argv
[i
][j
] == ',')
3468 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3472 /* Record the part after the last comma. */
3473 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3475 else if (! strncmp (argv
[i
], "-Wp,", 4))
3478 /* Pass the rest of this option to the preprocessor. */
3480 /* Split the argument at commas. */
3482 for (j
= 4; argv
[i
][j
]; j
++)
3483 if (argv
[i
][j
] == ',')
3485 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3489 /* Record the part after the last comma. */
3490 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3492 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3493 /* The +e options to the C++ front-end. */
3495 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3498 /* Split the argument at commas. */
3499 for (j
= 3; argv
[i
][j
]; j
++)
3500 n_infiles
+= (argv
[i
][j
] == ',');
3502 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3505 fatal ("argument to `-Xlinker' is missing");
3510 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3513 fatal ("argument to `-Xpreprocessor' is missing");
3515 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3517 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3520 fatal ("argument to `-Xassembler' is missing");
3522 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3524 else if (strcmp (argv
[i
], "-l") == 0)
3527 fatal ("argument to `-l' is missing");
3532 else if (strncmp (argv
[i
], "-l", 2) == 0)
3534 else if (strcmp (argv
[i
], "-save-temps") == 0)
3536 save_temps_flag
= 1;
3539 else if (strcmp (argv
[i
], "-combine") == 0)
3544 else if (strcmp (argv
[i
], "-specs") == 0)
3546 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3548 fatal ("argument to `-specs' is missing");
3550 user
->next
= (struct user_specs
*) 0;
3551 user
->filename
= argv
[i
];
3552 if (user_specs_tail
)
3553 user_specs_tail
->next
= user
;
3555 user_specs_head
= user
;
3556 user_specs_tail
= user
;
3558 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3560 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3561 if (strlen (argv
[i
]) == 7)
3562 fatal ("argument to `-specs=' is missing");
3564 user
->next
= (struct user_specs
*) 0;
3565 user
->filename
= argv
[i
] + 7;
3566 if (user_specs_tail
)
3567 user_specs_tail
->next
= user
;
3569 user_specs_head
= user
;
3570 user_specs_tail
= user
;
3572 else if (strcmp (argv
[i
], "-time") == 0)
3574 else if (strcmp (argv
[i
], "-pipe") == 0)
3576 /* -pipe has to go into the switches array as well as
3581 else if (strcmp (argv
[i
], "-###") == 0)
3583 /* This is similar to -v except that there is no execution
3584 of the commands and the echoed arguments are quoted. It
3585 is intended for use in shell scripts to capture the
3586 driver-generated command line. */
3587 verbose_only_flag
++;
3590 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3592 const char *p
= &argv
[i
][1];
3599 fatal ("`-%c' must come at the start of the command line", c
);
3607 if (p
[1] == 0 && i
+ 1 == argc
)
3608 fatal ("argument to `-B' is missing");
3614 len
= strlen (value
);
3616 /* Catch the case where the user has forgotten to append a
3617 directory separator to the path. Note, they may be using
3618 -B to add an executable name prefix, eg "i386-elf-", in
3619 order to distinguish between multiple installations of
3620 GCC in the same directory. Hence we must check to see
3621 if appending a directory separator actually makes a
3622 valid directory name. */
3623 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3624 && is_directory (value
, "", 0))
3626 char *tmp
= xmalloc (len
+ 2);
3627 strcpy (tmp
, value
);
3628 tmp
[len
] = DIR_SEPARATOR
;
3633 /* As a kludge, if the arg is "[foo/]stageN/", just
3634 add "[foo/]include" to the include prefix. */
3637 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3638 && strncmp (value
+ len
- 7, "stage", 5) == 0
3639 && ISDIGIT (value
[len
- 2])
3640 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3643 add_prefix (&include_prefixes
, "./", NULL
,
3644 PREFIX_PRIORITY_B_OPT
, 0, 0);
3647 char *string
= xmalloc (len
- 6);
3648 memcpy (string
, value
, len
- 7);
3649 string
[len
- 7] = 0;
3650 add_prefix (&include_prefixes
, string
, NULL
,
3651 PREFIX_PRIORITY_B_OPT
, 0, 0);
3655 add_prefix (&exec_prefixes
, value
, NULL
,
3656 PREFIX_PRIORITY_B_OPT
, 0, 0);
3657 add_prefix (&startfile_prefixes
, value
, NULL
,
3658 PREFIX_PRIORITY_B_OPT
, 0, 0);
3659 add_prefix (&include_prefixes
, value
, NULL
,
3660 PREFIX_PRIORITY_B_OPT
, 0, 0);
3665 case 'v': /* Print our subcommands and print versions. */
3667 /* If they do anything other than exactly `-v', don't set
3668 verbose_flag; rather, continue on to give the error. */
3685 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3690 /* Forward scan, just in case -S or -c is specified
3697 if (argv
[j
][0] == '-')
3699 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3705 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3706 j
+= skip
- (argv
[j
][2] != 0);
3707 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3714 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3716 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3718 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3725 #ifdef MODIFY_TARGET_NAME
3726 is_modify_target_name
= 0;
3728 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3729 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3731 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3732 + strlen (spec_machine
));
3735 int made_addition
= 0;
3737 is_modify_target_name
= 1;
3738 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3740 if (modify_target
[j
].add_del
== DELETE
3741 && (! strncmp (q
, modify_target
[j
].str
,
3742 strlen (modify_target
[j
].str
))))
3743 p
+= strlen (modify_target
[j
].str
);
3744 else if (modify_target
[j
].add_del
== ADD
3745 && ! made_addition
&& *p
== '-')
3747 for (r
= modify_target
[j
].str
; *r
!= 0; )
3755 spec_machine
= new_name
;
3758 if (is_modify_target_name
)
3764 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3765 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3766 else if (WORD_SWITCH_TAKES_ARG (p
))
3767 i
+= WORD_SWITCH_TAKES_ARG (p
);
3777 if ((save_temps_flag
|| report_times
) && use_pipes
)
3779 /* -save-temps overrides -pipe, so that temp files are produced */
3780 if (save_temps_flag
)
3781 error ("warning: -pipe ignored because -save-temps specified");
3782 /* -time overrides -pipe because we can't get correct stats when
3783 multiple children are running at once. */
3784 else if (report_times
)
3785 error ("warning: -pipe ignored because -time specified");
3790 /* Set up the search paths before we go looking for config files. */
3792 /* These come before the md prefixes so that we will find gcc's subcommands
3793 (such as cpp) rather than those of the host system. */
3794 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3795 as well as trying the machine and the version. */
3797 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3798 PREFIX_PRIORITY_LAST
, 1, 0);
3799 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3800 PREFIX_PRIORITY_LAST
, 2, 0);
3801 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3802 PREFIX_PRIORITY_LAST
, 2, 0);
3803 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3804 PREFIX_PRIORITY_LAST
, 2, 0);
3805 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3806 PREFIX_PRIORITY_LAST
, 2, 0);
3809 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3810 PREFIX_PRIORITY_LAST
, 1, 0);
3811 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3812 PREFIX_PRIORITY_LAST
, 1, 0);
3814 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3815 dir_separator_str
, NULL
);
3817 /* If tooldir is relative, base it on exec_prefixes. A relative
3818 tooldir lets us move the installed tree as a unit.
3820 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3821 directories, so that we can search both the user specified directory
3822 and the standard place. */
3824 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3826 if (gcc_exec_prefix
)
3828 char *gcc_exec_tooldir_prefix
3829 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3830 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3832 add_prefix (&exec_prefixes
,
3833 concat (gcc_exec_tooldir_prefix
, "bin",
3834 dir_separator_str
, NULL
),
3835 NULL
, PREFIX_PRIORITY_LAST
, 0, 0);
3836 add_prefix (&startfile_prefixes
,
3837 concat (gcc_exec_tooldir_prefix
, "lib",
3838 dir_separator_str
, NULL
),
3839 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
3842 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3843 dir_separator_str
, spec_version
,
3844 dir_separator_str
, tooldir_prefix
, NULL
);
3847 add_prefix (&exec_prefixes
,
3848 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3849 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3850 add_prefix (&startfile_prefixes
,
3851 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3852 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3854 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3855 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3856 then consider it to relocate with the rest of the GCC installation
3857 if GCC_EXEC_PREFIX is set.
3858 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3859 if (target_system_root
&& gcc_exec_prefix
)
3861 char *tmp_prefix
= make_relative_prefix (argv
[0],
3862 standard_bindir_prefix
,
3863 target_system_root
);
3864 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3866 target_system_root
= tmp_prefix
;
3867 target_system_root_changed
= 1;
3872 /* More prefixes are enabled in main, after we read the specs file
3873 and determine whether this is cross-compilation or not. */
3875 /* Then create the space for the vectors and scan again. */
3877 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3878 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3881 last_language_n_infiles
= -1;
3883 /* This, time, copy the text of each switch and store a pointer
3884 to the copy in the vector of switches.
3885 Store all the infiles in their vector. */
3887 for (i
= 1; i
< argc
; i
++)
3889 /* Just skip the switches that were handled by the preceding loop. */
3890 #ifdef MODIFY_TARGET_NAME
3891 is_modify_target_name
= 0;
3893 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3894 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3895 is_modify_target_name
= 1;
3897 if (is_modify_target_name
)
3901 if (! strncmp (argv
[i
], "-Wa,", 4))
3903 else if (! strncmp (argv
[i
], "-Wp,", 4))
3905 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3907 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3909 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3911 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3913 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3915 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3917 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3919 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3921 else if (! strcmp (argv
[i
], "-ftarget-help"))
3923 else if (! strcmp (argv
[i
], "-fhelp"))
3925 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3927 /* Compensate for the +e options to the C++ front-end;
3928 they're there simply for cfront call-compatibility. We do
3929 some magic in default_compilers to pass them down properly.
3930 Note we deliberately start at the `+' here, to avoid passing
3931 -e0 or -e1 down into the linker. */
3932 switches
[n_switches
].part1
= &argv
[i
][0];
3933 switches
[n_switches
].args
= 0;
3934 switches
[n_switches
].live_cond
= SWITCH_OK
;
3935 switches
[n_switches
].validated
= 0;
3938 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3941 /* Split the argument at commas. */
3943 for (j
= 4; argv
[i
][j
]; j
++)
3944 if (argv
[i
][j
] == ',')
3946 infiles
[n_infiles
].language
= "*";
3947 infiles
[n_infiles
++].name
3948 = save_string (argv
[i
] + prev
, j
- prev
);
3951 /* Record the part after the last comma. */
3952 infiles
[n_infiles
].language
= "*";
3953 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3955 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3957 infiles
[n_infiles
].language
= "*";
3958 infiles
[n_infiles
++].name
= argv
[++i
];
3960 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3962 infiles
[n_infiles
].language
= "*";
3963 infiles
[n_infiles
++].name
= argv
[++i
];
3965 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3967 infiles
[n_infiles
].language
= "*";
3968 infiles
[n_infiles
++].name
= argv
[++i
];
3970 else if (strcmp (argv
[i
], "-l") == 0)
3971 { /* POSIX allows separation of -l and the lib arg;
3972 canonicalize by concatenating -l with its arg */
3973 infiles
[n_infiles
].language
= "*";
3974 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3976 else if (strncmp (argv
[i
], "-l", 2) == 0)
3978 infiles
[n_infiles
].language
= "*";
3979 infiles
[n_infiles
++].name
= argv
[i
];
3981 else if (strcmp (argv
[i
], "-specs") == 0)
3983 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3985 else if (strcmp (argv
[i
], "-time") == 0)
3987 else if (strcmp (argv
[i
], "-###") == 0)
3989 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3991 const char *p
= &argv
[i
][1];
3996 if (p
[1] == 0 && i
+ 1 == argc
)
3997 fatal ("argument to `-x' is missing");
3999 spec_lang
= argv
[++i
];
4002 if (! strcmp (spec_lang
, "none"))
4003 /* Suppress the warning if -xnone comes after the last input
4004 file, because alternate command interfaces like g++ might
4005 find it useful to place -xnone after each input file. */
4008 last_language_n_infiles
= n_infiles
;
4011 switches
[n_switches
].part1
= p
;
4012 /* Deal with option arguments in separate argv elements. */
4013 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4014 || WORD_SWITCH_TAKES_ARG (p
))
4017 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4021 /* Count only the option arguments in separate argv elements. */
4022 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4024 if (i
+ n_args
>= argc
)
4025 fatal ("argument to `-%s' is missing", p
);
4026 switches
[n_switches
].args
4027 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4029 switches
[n_switches
].args
[j
++] = argv
[++i
];
4030 /* Null-terminate the vector. */
4031 switches
[n_switches
].args
[j
] = 0;
4033 else if (strchr (switches_need_spaces
, c
))
4035 /* On some systems, ld cannot handle some options without
4036 a space. So split the option from its argument. */
4037 char *part1
= xmalloc (2);
4041 switches
[n_switches
].part1
= part1
;
4042 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4043 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4044 switches
[n_switches
].args
[1] = 0;
4047 switches
[n_switches
].args
= 0;
4049 switches
[n_switches
].live_cond
= SWITCH_OK
;
4050 switches
[n_switches
].validated
= 0;
4051 switches
[n_switches
].ordering
= 0;
4052 /* These are always valid, since gcc.c itself understands them. */
4053 if (!strcmp (p
, "save-temps")
4054 || !strcmp (p
, "static-libgcc")
4055 || !strcmp (p
, "shared-libgcc")
4056 || !strcmp (p
, "pipe"))
4057 switches
[n_switches
].validated
= 1;
4060 char ch
= switches
[n_switches
].part1
[0];
4062 switches
[n_switches
].validated
= 1;
4068 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4069 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4072 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4074 perror_with_name (argv
[i
]);
4079 infiles
[n_infiles
].language
= spec_lang
;
4080 infiles
[n_infiles
++].name
= argv
[i
];
4085 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4086 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4088 /* Ensure we only invoke each subprocess once. */
4089 if (target_help_flag
|| print_help_list
)
4093 /* Create a dummy input file, so that we can pass --target-help on to
4094 the various sub-processes. */
4095 infiles
[0].language
= "c";
4096 infiles
[0].name
= "help-dummy";
4098 if (target_help_flag
)
4100 switches
[n_switches
].part1
= "--target-help";
4101 switches
[n_switches
].args
= 0;
4102 switches
[n_switches
].live_cond
= SWITCH_OK
;
4103 switches
[n_switches
].validated
= 0;
4108 if (print_help_list
)
4110 switches
[n_switches
].part1
= "--help";
4111 switches
[n_switches
].args
= 0;
4112 switches
[n_switches
].live_cond
= SWITCH_OK
;
4113 switches
[n_switches
].validated
= 0;
4119 switches
[n_switches
].part1
= 0;
4120 infiles
[n_infiles
].name
= 0;
4123 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4124 and place that in the environment. */
4127 set_collect_gcc_options (void)
4132 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4134 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4135 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4138 for (i
= 0; (int) i
< n_switches
; i
++)
4140 const char *const *args
;
4143 obstack_grow (&collect_obstack
, " ", 1);
4147 /* Ignore elided switches. */
4148 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4151 obstack_grow (&collect_obstack
, "'-", 2);
4152 q
= switches
[i
].part1
;
4153 while ((p
= strchr (q
, '\'')))
4155 obstack_grow (&collect_obstack
, q
, p
- q
);
4156 obstack_grow (&collect_obstack
, "'\\''", 4);
4159 obstack_grow (&collect_obstack
, q
, strlen (q
));
4160 obstack_grow (&collect_obstack
, "'", 1);
4162 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4164 obstack_grow (&collect_obstack
, " '", 2);
4166 while ((p
= strchr (q
, '\'')))
4168 obstack_grow (&collect_obstack
, q
, p
- q
);
4169 obstack_grow (&collect_obstack
, "'\\''", 4);
4172 obstack_grow (&collect_obstack
, q
, strlen (q
));
4173 obstack_grow (&collect_obstack
, "'", 1);
4176 obstack_grow (&collect_obstack
, "\0", 1);
4177 putenv (obstack_finish (&collect_obstack
));
4180 /* Process a spec string, accumulating and running commands. */
4182 /* These variables describe the input file name.
4183 input_file_number is the index on outfiles of this file,
4184 so that the output file name can be stored for later use by %o.
4185 input_basename is the start of the part of the input file
4186 sans all directory names, and basename_length is the number
4187 of characters starting there excluding the suffix .c or whatever. */
4189 static const char *input_filename
;
4190 static int input_file_number
;
4191 size_t input_filename_length
;
4192 static int basename_length
;
4193 static int suffixed_basename_length
;
4194 static const char *input_basename
;
4195 static const char *input_suffix
;
4196 static struct stat input_stat
;
4197 static int input_stat_set
;
4199 /* The compiler used to process the current input file. */
4200 static struct compiler
*input_file_compiler
;
4202 /* These are variables used within do_spec and do_spec_1. */
4204 /* Nonzero if an arg has been started and not yet terminated
4205 (with space, tab or newline). */
4206 static int arg_going
;
4208 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4209 is a temporary file name. */
4210 static int delete_this_arg
;
4212 /* Nonzero means %w has been seen; the next arg to be terminated
4213 is the output file name of this compilation. */
4214 static int this_is_output_file
;
4216 /* Nonzero means %s has been seen; the next arg to be terminated
4217 is the name of a library file and we should try the standard
4218 search dirs for it. */
4219 static int this_is_library_file
;
4221 /* Nonzero means that the input of this command is coming from a pipe. */
4222 static int input_from_pipe
;
4224 /* Nonnull means substitute this for any suffix when outputting a switches
4226 static const char *suffix_subst
;
4228 /* Process the spec SPEC and run the commands specified therein.
4229 Returns 0 if the spec is successfully processed; -1 if failed. */
4232 do_spec (const char *spec
)
4236 value
= do_spec_2 (spec
);
4238 /* Force out any unfinished command.
4239 If -pipe, this forces out the last command if it ended in `|'. */
4242 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4245 set_collect_gcc_options ();
4247 if (argbuf_index
> 0)
4255 do_spec_2 (const char *spec
)
4262 delete_this_arg
= 0;
4263 this_is_output_file
= 0;
4264 this_is_library_file
= 0;
4265 input_from_pipe
= 0;
4266 suffix_subst
= NULL
;
4268 result
= do_spec_1 (spec
, 0, NULL
);
4270 /* End any pending argument. */
4273 obstack_1grow (&obstack
, 0);
4274 string
= obstack_finish (&obstack
);
4275 if (this_is_library_file
)
4276 string
= find_file (string
);
4277 store_arg (string
, delete_this_arg
, this_is_output_file
);
4278 if (this_is_output_file
)
4279 outfiles
[input_file_number
] = string
;
4287 /* Process the given spec string and add any new options to the end
4288 of the switches/n_switches array. */
4291 do_option_spec (const char *name
, const char *spec
)
4293 unsigned int i
, value_count
, value_len
;
4294 const char *p
, *q
, *value
;
4295 char *tmp_spec
, *tmp_spec_p
;
4297 if (configure_default_options
[0].name
== NULL
)
4300 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4301 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4303 if (i
== ARRAY_SIZE (configure_default_options
))
4306 value
= configure_default_options
[i
].value
;
4307 value_len
= strlen (value
);
4309 /* Compute the size of the final spec. */
4312 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4318 /* Replace each %(VALUE) by the specified value. */
4319 tmp_spec
= alloca (strlen (spec
) + 1
4320 + value_count
* (value_len
- strlen ("%(VALUE)")));
4321 tmp_spec_p
= tmp_spec
;
4323 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4325 memcpy (tmp_spec_p
, q
, p
- q
);
4326 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4327 memcpy (tmp_spec_p
, value
, value_len
);
4328 tmp_spec_p
+= value_len
;
4329 q
= p
+ strlen ("%(VALUE)");
4331 strcpy (tmp_spec_p
, q
);
4333 do_self_spec (tmp_spec
);
4336 /* Process the given spec string and add any new options to the end
4337 of the switches/n_switches array. */
4340 do_self_spec (const char *spec
)
4343 do_spec_1 (" ", 0, NULL
);
4345 if (argbuf_index
> 0)
4350 n_switches
+= argbuf_index
;
4351 switches
= xrealloc (switches
,
4352 sizeof (struct switchstr
) * (n_switches
+ 1));
4354 switches
[n_switches
] = switches
[first
];
4355 for (i
= 0; i
< argbuf_index
; i
++)
4357 struct switchstr
*sw
;
4359 /* Each switch should start with '-'. */
4360 if (argbuf
[i
][0] != '-')
4363 sw
= &switches
[i
+ first
];
4364 sw
->part1
= &argbuf
[i
][1];
4366 sw
->live_cond
= SWITCH_OK
;
4374 do_spec_path (struct prefix_list
*pl
, const char *option
,
4375 int omit_if_relative
, int separate_options
,
4377 const char *dir_for_machine_suffix
,
4378 const char *dir_for_no_suffix
)
4380 static size_t bufsize
= 0;
4381 static char *buffer
;
4384 /* Used on systems which record the specified -L dirs
4385 and use them to search for dynamic linking. */
4386 /* Relative directories always come from -B,
4387 and it is better not to use them for searching
4388 at run time. In particular, stage1 loses. */
4389 if (omit_if_relative
4390 && !IS_ABSOLUTE_PATH (pl
->prefix
))
4393 /* Try subdirectory if there is one. */
4394 if (machine_suffix
&& dir_for_machine_suffix
)
4396 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4398 bufsize
= (strlen (pl
->prefix
)
4399 + strlen (machine_suffix
)) * 2 + 1;
4400 buffer
= xrealloc (buffer
, bufsize
);
4401 strcpy (buffer
, pl
->prefix
);
4402 strcat (buffer
, machine_suffix
);
4403 if (is_directory (buffer
, dir_for_machine_suffix
, 1))
4405 do_spec_1 (option
, separate_options
, NULL
);
4406 if (separate_options
)
4407 do_spec_1 (" ", 0, NULL
);
4408 do_spec_1 (buffer
, 1, NULL
);
4409 do_spec_1 (dir_for_machine_suffix
, 1, NULL
);
4410 /* Make this a separate argument. */
4411 do_spec_1 (" ", 0, NULL
);
4414 if (!pl
->require_machine_suffix
&& dir_for_no_suffix
)
4416 if (is_directory (pl
->prefix
, dir_for_no_suffix
, 1))
4418 do_spec_1 (option
, separate_options
, NULL
);
4419 if (separate_options
)
4420 do_spec_1 (" ", 0, NULL
);
4421 do_spec_1 (pl
->prefix
, 1, NULL
);
4422 do_spec_1 (dir_for_no_suffix
, 1, NULL
);
4423 /* Make this a separate argument. */
4424 do_spec_1 (" ", 0, NULL
);
4433 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4435 do_spec_1 (option
, separate_options
, NULL
);
4436 if (separate_options
)
4437 do_spec_1 (" ", 0, NULL
);
4438 do_spec_1 (pl
->prefix
, 1, NULL
);
4439 /* Remove slash from machine_suffix. */
4440 if (strlen (machine_suffix
) >= bufsize
)
4441 bufsize
= strlen (machine_suffix
) * 2 + 1;
4442 buffer
= xrealloc (buffer
, bufsize
);
4443 strcpy (buffer
, machine_suffix
);
4444 idx
= strlen (buffer
);
4445 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4446 buffer
[idx
- 1] = 0;
4447 do_spec_1 (buffer
, 1, NULL
);
4448 /* Make this a separate argument. */
4449 do_spec_1 (" ", 0, NULL
);
4452 if (!pl
->require_machine_suffix
)
4454 if (is_directory (pl
->prefix
, "", 1))
4456 do_spec_1 (option
, separate_options
, NULL
);
4457 if (separate_options
)
4458 do_spec_1 (" ", 0, NULL
);
4459 /* Remove slash from pl->prefix. */
4460 if (strlen (pl
->prefix
) >= bufsize
)
4461 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4462 buffer
= xrealloc (buffer
, bufsize
);
4463 strcpy (buffer
, pl
->prefix
);
4464 idx
= strlen (buffer
);
4465 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4466 buffer
[idx
- 1] = 0;
4467 do_spec_1 (buffer
, 1, NULL
);
4468 /* Make this a separate argument. */
4469 do_spec_1 (" ", 0, NULL
);
4474 /* Process the sub-spec SPEC as a portion of a larger spec.
4475 This is like processing a whole spec except that we do
4476 not initialize at the beginning and we do not supply a
4477 newline by default at the end.
4478 INSWITCH nonzero means don't process %-sequences in SPEC;
4479 in this case, % is treated as an ordinary character.
4480 This is used while substituting switches.
4481 INSWITCH nonzero also causes SPC not to terminate an argument.
4483 Value is zero unless a line was finished
4484 and the command on that line reported an error. */
4487 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4489 const char *p
= spec
;
4496 /* If substituting a switch, treat all chars like letters.
4497 Otherwise, NL, SPC, TAB and % are special. */
4498 switch (inswitch
? 'a' : c
)
4501 /* End of line: finish any pending argument,
4502 then run the pending command if one has been started. */
4505 obstack_1grow (&obstack
, 0);
4506 string
= obstack_finish (&obstack
);
4507 if (this_is_library_file
)
4508 string
= find_file (string
);
4509 store_arg (string
, delete_this_arg
, this_is_output_file
);
4510 if (this_is_output_file
)
4511 outfiles
[input_file_number
] = string
;
4515 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4517 /* A `|' before the newline means use a pipe here,
4518 but only if -pipe was specified.
4519 Otherwise, execute now and don't pass the `|' as an arg. */
4522 input_from_pipe
= 1;
4529 set_collect_gcc_options ();
4531 if (argbuf_index
> 0)
4537 /* Reinitialize for a new command, and for a new argument. */
4540 delete_this_arg
= 0;
4541 this_is_output_file
= 0;
4542 this_is_library_file
= 0;
4543 input_from_pipe
= 0;
4547 /* End any pending argument. */
4550 obstack_1grow (&obstack
, 0);
4551 string
= obstack_finish (&obstack
);
4552 if (this_is_library_file
)
4553 string
= find_file (string
);
4554 store_arg (string
, delete_this_arg
, this_is_output_file
);
4555 if (this_is_output_file
)
4556 outfiles
[input_file_number
] = string
;
4560 obstack_1grow (&obstack
, c
);
4566 /* Space or tab ends an argument if one is pending. */
4569 obstack_1grow (&obstack
, 0);
4570 string
= obstack_finish (&obstack
);
4571 if (this_is_library_file
)
4572 string
= find_file (string
);
4573 store_arg (string
, delete_this_arg
, this_is_output_file
);
4574 if (this_is_output_file
)
4575 outfiles
[input_file_number
] = string
;
4577 /* Reinitialize for a new argument. */
4579 delete_this_arg
= 0;
4580 this_is_output_file
= 0;
4581 this_is_library_file
= 0;
4588 fatal ("invalid specification! Bug in cc");
4591 obstack_grow (&obstack
, input_basename
, basename_length
);
4596 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4601 delete_this_arg
= 2;
4604 /* Dump out the directories specified with LIBRARY_PATH,
4605 followed by the absolute directories
4606 that we search for startfiles. */
4609 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4611 for (; pl
; pl
= pl
->next
)
4613 const char *no_suffix_multilib_dir
;
4615 no_suffix_multilib_dir
= pl
->os_multilib
? multilib_os_dir
4617 /* Do not separate options, include non-multilibbed variant. */
4618 do_spec_path (pl
, "-L",
4619 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4624 0, 0, multilib_dir
, no_suffix_multilib_dir
);
4630 /* %efoo means report an error with `foo' as error message
4631 and don't execute any more commands for this file. */
4635 while (*p
!= 0 && *p
!= '\n')
4637 buf
= alloca (p
- q
+ 1);
4638 strncpy (buf
, q
, p
- q
);
4645 /* %nfoo means report a notice with `foo' on stderr. */
4649 while (*p
!= 0 && *p
!= '\n')
4651 buf
= alloca (p
- q
+ 1);
4652 strncpy (buf
, q
, p
- q
);
4654 notice ("%s\n", buf
);
4664 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4665 defined, and it is not a directory, and it is
4666 writable, use it. Otherwise, treat this like any
4667 other temporary file. */
4669 if ((!save_temps_flag
)
4670 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4671 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4673 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4674 strlen (HOST_BIT_BUCKET
));
4675 delete_this_arg
= 0;
4680 goto create_temp_file
;
4684 obstack_1grow (&obstack
, '-');
4685 delete_this_arg
= 0;
4688 /* consume suffix */
4689 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4691 if (p
[0] == '%' && p
[1] == 'O')
4696 goto create_temp_file
;
4700 /* consume suffix */
4701 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4703 if (p
[0] == '%' && p
[1] == 'O')
4708 goto create_temp_file
;
4714 struct temp_name
*t
;
4716 const char *suffix
= p
;
4717 char *saved_suffix
= NULL
;
4719 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4721 suffix_length
= p
- suffix
;
4722 if (p
[0] == '%' && p
[1] == 'O')
4725 /* We don't support extra suffix characters after %O. */
4726 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4728 if (suffix_length
== 0)
4729 suffix
= TARGET_OBJECT_SUFFIX
;
4733 = xmalloc (suffix_length
4734 + strlen (TARGET_OBJECT_SUFFIX
));
4735 strncpy (saved_suffix
, suffix
, suffix_length
);
4736 strcpy (saved_suffix
+ suffix_length
,
4737 TARGET_OBJECT_SUFFIX
);
4739 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4742 /* If the input_filename has the same suffix specified
4743 for the %g, %u, or %U, and -save-temps is specified,
4744 we could end up using that file as an intermediate
4745 thus clobbering the user's source file (.e.g.,
4746 gcc -save-temps foo.s would clobber foo.s with the
4747 output of cpp0). So check for this condition and
4748 generate a temp file as the intermediate. */
4750 if (save_temps_flag
)
4752 temp_filename_length
= basename_length
+ suffix_length
;
4753 temp_filename
= alloca (temp_filename_length
+ 1);
4754 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4755 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4757 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4758 if (strcmp (temp_filename
, input_filename
) != 0)
4760 struct stat st_temp
;
4762 /* Note, set_input() resets input_stat_set to 0. */
4763 if (input_stat_set
== 0)
4765 input_stat_set
= stat (input_filename
, &input_stat
);
4766 if (input_stat_set
>= 0)
4770 /* If we have the stat for the input_filename
4771 and we can do the stat for the temp_filename
4772 then the they could still refer to the same
4773 file if st_dev/st_ino's are the same. */
4775 if (input_stat_set
!= 1
4776 || stat (temp_filename
, &st_temp
) < 0
4777 || input_stat
.st_dev
!= st_temp
.st_dev
4778 || input_stat
.st_ino
!= st_temp
.st_ino
)
4780 temp_filename
= save_string (temp_filename
,
4781 temp_filename_length
+ 1);
4782 obstack_grow (&obstack
, temp_filename
,
4783 temp_filename_length
);
4785 delete_this_arg
= 0;
4791 /* See if we already have an association of %g/%u/%U and
4793 for (t
= temp_names
; t
; t
= t
->next
)
4794 if (t
->length
== suffix_length
4795 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4796 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4799 /* Make a new association if needed. %u and %j
4801 if (t
== 0 || c
== 'u' || c
== 'j')
4805 t
= xmalloc (sizeof (struct temp_name
));
4806 t
->next
= temp_names
;
4809 t
->length
= suffix_length
;
4812 t
->suffix
= saved_suffix
;
4813 saved_suffix
= NULL
;
4816 t
->suffix
= save_string (suffix
, suffix_length
);
4817 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4818 temp_filename
= make_temp_file (t
->suffix
);
4819 temp_filename_length
= strlen (temp_filename
);
4820 t
->filename
= temp_filename
;
4821 t
->filename_length
= temp_filename_length
;
4825 free (saved_suffix
);
4827 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4828 delete_this_arg
= 1;
4836 for (i
= 0; (int) i
< n_infiles
; i
++)
4837 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4838 if (infiles
[i
].incompiler
== input_file_compiler
)
4840 store_arg (infiles
[i
].name
, 0, 0);
4841 infiles
[i
].compiled
= true;
4846 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4853 struct prefix_list
*pl
= include_prefixes
.plist
;
4855 if (gcc_exec_prefix
)
4857 do_spec_1 ("-iprefix", 1, NULL
);
4858 /* Make this a separate argument. */
4859 do_spec_1 (" ", 0, NULL
);
4860 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4861 do_spec_1 (" ", 0, NULL
);
4864 if (target_system_root_changed
||
4865 (target_system_root
&& target_sysroot_hdrs_suffix
))
4867 do_spec_1 ("-isysroot", 1, NULL
);
4868 /* Make this a separate argument. */
4869 do_spec_1 (" ", 0, NULL
);
4870 do_spec_1 (target_system_root
, 1, NULL
);
4871 if (target_sysroot_hdrs_suffix
)
4872 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4873 do_spec_1 (" ", 0, NULL
);
4876 for (; pl
; pl
= pl
->next
)
4877 /* Separate options, don't include non-suffixed variant. */
4878 do_spec_path (pl
, "-isystem", 0, 1, 1, "include", "include");
4884 int max
= n_infiles
;
4885 max
+= lang_specific_extra_outfiles
;
4887 for (i
= 0; i
< max
; i
++)
4889 store_arg (outfiles
[i
], 0, 0);
4894 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4899 this_is_library_file
= 1;
4903 outfiles
[input_file_number
] = NULL
;
4907 this_is_output_file
= 1;
4912 int cur_index
= argbuf_index
;
4913 /* Handle the {...} following the %W. */
4916 p
= handle_braces (p
+ 1);
4919 /* End any pending argument. */
4922 obstack_1grow (&obstack
, 0);
4923 string
= obstack_finish (&obstack
);
4924 if (this_is_library_file
)
4925 string
= find_file (string
);
4926 store_arg (string
, delete_this_arg
, this_is_output_file
);
4927 if (this_is_output_file
)
4928 outfiles
[input_file_number
] = string
;
4931 /* If any args were output, mark the last one for deletion
4933 if (argbuf_index
!= cur_index
)
4934 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4938 /* %x{OPTION} records OPTION for %X to output. */
4944 /* Skip past the option value and make a copy. */
4949 string
= save_string (p1
+ 1, p
- p1
- 2);
4951 /* See if we already recorded this option. */
4952 for (i
= 0; i
< n_linker_options
; i
++)
4953 if (! strcmp (string
, linker_options
[i
]))
4959 /* This option is new; add it. */
4960 add_linker_option (string
, strlen (string
));
4964 /* Dump out the options accumulated previously using %x. */
4966 for (i
= 0; i
< n_linker_options
; i
++)
4968 do_spec_1 (linker_options
[i
], 1, NULL
);
4969 /* Make each accumulated option a separate argument. */
4970 do_spec_1 (" ", 0, NULL
);
4974 /* Dump out the options accumulated previously using -Wa,. */
4976 for (i
= 0; i
< n_assembler_options
; i
++)
4978 do_spec_1 (assembler_options
[i
], 1, NULL
);
4979 /* Make each accumulated option a separate argument. */
4980 do_spec_1 (" ", 0, NULL
);
4984 /* Dump out the options accumulated previously using -Wp,. */
4986 for (i
= 0; i
< n_preprocessor_options
; i
++)
4988 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4989 /* Make each accumulated option a separate argument. */
4990 do_spec_1 (" ", 0, NULL
);
4994 /* Here are digits and numbers that just process
4995 a certain constant string as a spec. */
4998 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5004 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5010 value
= do_spec_1 (asm_spec
, 0, NULL
);
5016 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5023 const char *const spec
5024 = (input_file_compiler
->cpp_spec
5025 ? input_file_compiler
->cpp_spec
5027 value
= do_spec_1 (spec
, 0, NULL
);
5034 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5040 value
= do_spec_1 (link_spec
, 0, NULL
);
5046 value
= do_spec_1 (lib_spec
, 0, NULL
);
5052 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5058 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
5064 len
= strlen (multilib_dir
);
5065 obstack_blank (&obstack
, len
+ 1);
5066 p
= obstack_next_free (&obstack
) - (len
+ 1);
5069 for (q
= multilib_dir
; *q
; ++q
, ++p
)
5070 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
5075 /* We assume there is a directory
5076 separator at the end of this string. */
5077 if (target_system_root
)
5079 obstack_grow (&obstack
, target_system_root
,
5080 strlen (target_system_root
));
5081 if (target_sysroot_suffix
)
5082 obstack_grow (&obstack
, target_sysroot_suffix
,
5083 strlen (target_sysroot_suffix
));
5088 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5093 /* Here we define characters other than letters and digits. */
5096 p
= handle_braces (p
);
5102 p
= handle_spec_function (p
);
5108 obstack_1grow (&obstack
, '%');
5115 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5117 suffix_subst
= save_string (p
- 1, len
+ 1);
5122 /* Henceforth ignore the option(s) matching the pattern
5127 int have_wildcard
= 0;
5130 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5133 if (p
[len
-1] == '*')
5136 for (i
= 0; i
< n_switches
; i
++)
5137 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5138 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5140 switches
[i
].live_cond
= SWITCH_IGNORE
;
5141 switches
[i
].validated
= 1;
5149 if (soft_matched_part
)
5151 do_spec_1 (soft_matched_part
, 1, NULL
);
5152 do_spec_1 (" ", 0, NULL
);
5155 /* Catch the case where a spec string contains something like
5156 '%{foo:%*}'. ie there is no * in the pattern on the left
5157 hand side of the :. */
5158 error ("spec failure: '%%*' has not been initialized by pattern match");
5161 /* Process a string found as the value of a spec given by name.
5162 This feature allows individual machine descriptions
5163 to add and use their own specs.
5164 %[...] modifies -D options the way %P does;
5165 %(...) uses the spec unmodified. */
5167 error ("warning: use of obsolete %%[ operator in specs");
5170 const char *name
= p
;
5171 struct spec_list
*sl
;
5174 /* The string after the S/P is the name of a spec that is to be
5176 while (*p
&& *p
!= ')' && *p
!= ']')
5179 /* See if it's in the list. */
5180 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5181 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5183 name
= *(sl
->ptr_spec
);
5185 notice ("Processing spec %c%s%c, which is '%s'\n",
5186 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5195 value
= do_spec_1 (name
, 0, NULL
);
5201 char *x
= alloca (strlen (name
) * 2 + 1);
5203 const char *y
= name
;
5206 /* Copy all of NAME into BUF, but put __ after
5207 every -D and at the end of each arg. */
5210 if (! strncmp (y
, "-D", 2))
5221 && (*y
== ' ' || *y
== '\t' || *y
== '='
5222 || *y
== '}' || *y
== 0))
5235 value
= do_spec_1 (buf
, 0, NULL
);
5241 /* Discard the closing paren or bracket. */
5248 error ("spec failure: unrecognized spec option '%c'", c
);
5254 /* Backslash: treat next character as ordinary. */
5259 /* Ordinary character: put it into the current argument. */
5260 obstack_1grow (&obstack
, c
);
5264 /* End of string. If we are processing a spec function, we need to
5265 end any pending argument. */
5266 if (processing_spec_function
&& arg_going
)
5268 obstack_1grow (&obstack
, 0);
5269 string
= obstack_finish (&obstack
);
5270 if (this_is_library_file
)
5271 string
= find_file (string
);
5272 store_arg (string
, delete_this_arg
, this_is_output_file
);
5273 if (this_is_output_file
)
5274 outfiles
[input_file_number
] = string
;
5281 /* Look up a spec function. */
5283 static const struct spec_function
*
5284 lookup_spec_function (const char *name
)
5286 static const struct spec_function
* const spec_function_tables
[] =
5288 static_spec_functions
,
5289 lang_specific_spec_functions
,
5291 const struct spec_function
*sf
;
5294 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5296 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5297 if (strcmp (sf
->name
, name
) == 0)
5304 /* Evaluate a spec function. */
5307 eval_spec_function (const char *func
, const char *args
)
5309 const struct spec_function
*sf
;
5310 const char *funcval
;
5312 /* Saved spec processing context. */
5313 int save_argbuf_index
;
5314 int save_argbuf_length
;
5315 const char **save_argbuf
;
5318 int save_delete_this_arg
;
5319 int save_this_is_output_file
;
5320 int save_this_is_library_file
;
5321 int save_input_from_pipe
;
5322 const char *save_suffix_subst
;
5325 sf
= lookup_spec_function (func
);
5327 fatal ("unknown spec function `%s'", func
);
5329 /* Push the spec processing context. */
5330 save_argbuf_index
= argbuf_index
;
5331 save_argbuf_length
= argbuf_length
;
5332 save_argbuf
= argbuf
;
5334 save_arg_going
= arg_going
;
5335 save_delete_this_arg
= delete_this_arg
;
5336 save_this_is_output_file
= this_is_output_file
;
5337 save_this_is_library_file
= this_is_library_file
;
5338 save_input_from_pipe
= input_from_pipe
;
5339 save_suffix_subst
= suffix_subst
;
5341 /* Create a new spec processing context, and build the function
5345 if (do_spec_2 (args
) < 0)
5346 fatal ("error in args to spec function `%s'", func
);
5348 /* argbuf_index is an index for the next argument to be inserted, and
5349 so contains the count of the args already inserted. */
5351 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5353 /* Pop the spec processing context. */
5354 argbuf_index
= save_argbuf_index
;
5355 argbuf_length
= save_argbuf_length
;
5357 argbuf
= save_argbuf
;
5359 arg_going
= save_arg_going
;
5360 delete_this_arg
= save_delete_this_arg
;
5361 this_is_output_file
= save_this_is_output_file
;
5362 this_is_library_file
= save_this_is_library_file
;
5363 input_from_pipe
= save_input_from_pipe
;
5364 suffix_subst
= save_suffix_subst
;
5369 /* Handle a spec function call of the form:
5373 ARGS is processed as a spec in a separate context and split into an
5374 argument vector in the normal fashion. The function returns a string
5375 containing a spec which we then process in the caller's context, or
5376 NULL if no processing is required. */
5379 handle_spec_function (const char *p
)
5382 const char *endp
, *funcval
;
5385 processing_spec_function
++;
5387 /* Get the function name. */
5388 for (endp
= p
; *endp
!= '\0'; endp
++)
5390 if (*endp
== '(') /* ) */
5392 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5393 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5394 fatal ("malformed spec function name");
5396 if (*endp
!= '(') /* ) */
5397 fatal ("no arguments for spec function");
5398 func
= save_string (p
, endp
- p
);
5401 /* Get the arguments. */
5402 for (count
= 0; *endp
!= '\0'; endp
++)
5411 else if (*endp
== '(') /* ) */
5416 fatal ("malformed spec function arguments");
5417 args
= save_string (p
, endp
- p
);
5420 /* p now points to just past the end of the spec function expression. */
5422 funcval
= eval_spec_function (func
, args
);
5423 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5429 processing_spec_function
--;
5434 /* Inline subroutine of handle_braces. Returns true if the current
5435 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5437 input_suffix_matches (const char *atom
, const char *end_atom
)
5439 return (input_suffix
5440 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5441 && input_suffix
[end_atom
- atom
] == '\0');
5444 /* Inline subroutine of handle_braces. Returns true if a switch
5445 matching the atom bracketed by ATOM and END_ATOM appeared on the
5448 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5451 int len
= end_atom
- atom
;
5452 int plen
= starred
? len
: -1;
5454 for (i
= 0; i
< n_switches
; i
++)
5455 if (!strncmp (switches
[i
].part1
, atom
, len
)
5456 && (starred
|| switches
[i
].part1
[len
] == '\0')
5457 && check_live_switch (i
, plen
))
5463 /* Inline subroutine of handle_braces. Mark all of the switches which
5464 match ATOM (extends to END_ATOM; STARRED indicates whether there
5465 was a star after the atom) for later processing. */
5467 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5470 int len
= end_atom
- atom
;
5471 int plen
= starred
? len
: -1;
5473 for (i
= 0; i
< n_switches
; i
++)
5474 if (!strncmp (switches
[i
].part1
, atom
, len
)
5475 && (starred
|| switches
[i
].part1
[len
] == '\0')
5476 && check_live_switch (i
, plen
))
5477 switches
[i
].ordering
= 1;
5480 /* Inline subroutine of handle_braces. Process all the currently
5481 marked switches through give_switch, and clear the marks. */
5483 process_marked_switches (void)
5487 for (i
= 0; i
< n_switches
; i
++)
5488 if (switches
[i
].ordering
== 1)
5490 switches
[i
].ordering
= 0;
5495 /* Handle a %{ ... } construct. P points just inside the leading {.
5496 Returns a pointer one past the end of the brace block, or 0
5497 if we call do_spec_1 and that returns -1. */
5500 handle_braces (const char *p
)
5502 const char *atom
, *end_atom
;
5503 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5510 bool a_must_be_last
= false;
5511 bool ordered_set
= false;
5512 bool disjunct_set
= false;
5513 bool disj_matched
= false;
5514 bool disj_starred
= true;
5515 bool n_way_choice
= false;
5516 bool n_way_matched
= false;
5518 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5525 /* Scan one "atom" (S in the description above of %{}, possibly
5526 with !, ., or * modifiers). */
5527 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5531 p
++, a_is_negated
= true;
5535 p
++, a_is_suffix
= true;
5538 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5539 || *p
== ',' || *p
== '.' || *p
== '@')
5544 p
++, a_is_starred
= 1;
5547 if (*p
== '&' || *p
== '}')
5549 /* Substitute the switch(es) indicated by the current atom. */
5551 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5552 || atom
== end_atom
)
5555 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5558 process_marked_switches ();
5560 else if (*p
== '|' || *p
== ':')
5562 /* Substitute some text if the current atom appears as a switch
5564 disjunct_set
= true;
5568 if (atom
== end_atom
)
5570 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5571 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5574 /* An empty term may appear as the last choice of an
5575 N-way choice set; it means "otherwise". */
5576 a_must_be_last
= true;
5577 disj_matched
= !n_way_matched
;
5578 disj_starred
= false;
5582 if (a_is_suffix
&& a_is_starred
)
5586 disj_starred
= false;
5588 /* Don't bother testing this atom if we already have a
5590 if (!disj_matched
&& !n_way_matched
)
5593 a_matched
= input_suffix_matches (atom
, end_atom
);
5595 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5597 if (a_matched
!= a_is_negated
)
5599 disj_matched
= true;
5601 d_end_atom
= end_atom
;
5608 /* Found the body, that is, the text to substitute if the
5609 current disjunction matches. */
5610 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5611 disj_matched
&& !n_way_matched
);
5615 /* If we have an N-way choice, reset state for the next
5619 n_way_choice
= true;
5620 n_way_matched
|= disj_matched
;
5621 disj_matched
= false;
5622 disj_starred
= true;
5623 d_atom
= d_end_atom
= NULL
;
5630 while (*p
++ != '}');
5637 /* Subroutine of handle_braces. Scan and process a brace substitution body
5638 (X in the description of %{} syntax). P points one past the colon;
5639 ATOM and END_ATOM bracket the first atom which was found to be true
5640 (present) in the current disjunction; STARRED indicates whether all
5641 the atoms in the current disjunction were starred (for syntax validation);
5642 MATCHED indicates whether the disjunction matched or not, and therefore
5643 whether or not the body is to be processed through do_spec_1 or just
5644 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5648 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5649 int starred
, int matched
)
5651 const char *body
, *end_body
;
5652 unsigned int nesting_level
;
5653 bool have_subst
= false;
5655 /* Locate the closing } or ;, honoring nested braces.
5656 Trim trailing whitespace. */
5665 if (!--nesting_level
)
5668 else if (*p
== ';' && nesting_level
== 1)
5670 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5672 else if (*p
== '\0')
5678 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5681 if (have_subst
&& !starred
)
5686 /* Copy the substitution body to permanent storage and execute it.
5687 If have_subst is false, this is a simple matter of running the
5688 body through do_spec_1... */
5689 char *string
= save_string (body
, end_body
- body
);
5692 if (do_spec_1 (string
, 0, NULL
) < 0)
5697 /* ... but if have_subst is true, we have to process the
5698 body once for each matching switch, with %* set to the
5699 variant part of the switch. */
5700 unsigned int hard_match_len
= end_atom
- atom
;
5703 for (i
= 0; i
< n_switches
; i
++)
5704 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5705 && check_live_switch (i
, hard_match_len
))
5707 if (do_spec_1 (string
, 0,
5708 &switches
[i
].part1
[hard_match_len
]) < 0)
5710 /* Pass any arguments this switch has. */
5712 suffix_subst
= NULL
;
5720 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5721 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5722 spec, or -1 if either exact match or %* is used.
5724 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5725 whose value does not begin with "no-" is obsoleted by the same value
5726 with the "no-", similarly for a switch with the "no-" prefix. */
5729 check_live_switch (int switchnum
, int prefix_length
)
5731 const char *name
= switches
[switchnum
].part1
;
5734 /* In the common case of {<at-most-one-letter>*}, a negating
5735 switch would always match, so ignore that case. We will just
5736 send the conflicting switches to the compiler phase. */
5737 if (prefix_length
>= 0 && prefix_length
<= 1)
5740 /* If we already processed this switch and determined if it was
5741 live or not, return our past determination. */
5742 if (switches
[switchnum
].live_cond
!= 0)
5743 return switches
[switchnum
].live_cond
> 0;
5745 /* Now search for duplicate in a manner that depends on the name. */
5749 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5750 if (switches
[i
].part1
[0] == 'O')
5752 switches
[switchnum
].validated
= 1;
5753 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5758 case 'W': case 'f': case 'm':
5759 if (! strncmp (name
+ 1, "no-", 3))
5761 /* We have Xno-YYY, search for XYYY. */
5762 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5763 if (switches
[i
].part1
[0] == name
[0]
5764 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5766 switches
[switchnum
].validated
= 1;
5767 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5773 /* We have XYYY, search for Xno-YYY. */
5774 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5775 if (switches
[i
].part1
[0] == name
[0]
5776 && switches
[i
].part1
[1] == 'n'
5777 && switches
[i
].part1
[2] == 'o'
5778 && switches
[i
].part1
[3] == '-'
5779 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5781 switches
[switchnum
].validated
= 1;
5782 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5789 /* Otherwise the switch is live. */
5790 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5794 /* Pass a switch to the current accumulating command
5795 in the same form that we received it.
5796 SWITCHNUM identifies the switch; it is an index into
5797 the vector of switches gcc received, which is `switches'.
5798 This cannot fail since it never finishes a command line.
5800 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5803 give_switch (int switchnum
, int omit_first_word
)
5805 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5808 if (!omit_first_word
)
5810 do_spec_1 ("-", 0, NULL
);
5811 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5814 if (switches
[switchnum
].args
!= 0)
5817 for (p
= switches
[switchnum
].args
; *p
; p
++)
5819 const char *arg
= *p
;
5821 do_spec_1 (" ", 0, NULL
);
5824 unsigned length
= strlen (arg
);
5827 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5828 if (arg
[length
] == '.')
5830 ((char *)arg
)[length
] = 0;
5834 do_spec_1 (arg
, 1, NULL
);
5836 ((char *)arg
)[length
] = '.';
5837 do_spec_1 (suffix_subst
, 1, NULL
);
5840 do_spec_1 (arg
, 1, NULL
);
5844 do_spec_1 (" ", 0, NULL
);
5845 switches
[switchnum
].validated
= 1;
5848 /* Search for a file named NAME trying various prefixes including the
5849 user's -B prefix and some standard ones.
5850 Return the absolute file name found. If nothing is found, return NAME. */
5853 find_file (const char *name
)
5857 /* Try multilib_dir if it is defined. */
5858 if (multilib_os_dir
!= NULL
)
5860 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5862 /* If we don't find it in the multi library dir, then fall
5863 through and look for it in the normal places. */
5864 if (newname
!= NULL
)
5868 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5869 return newname
? newname
: name
;
5872 /* Determine whether a directory exists. If LINKER, return 0 for
5873 certain fixed names not needed by the linker. If not LINKER, it is
5874 only important to return 0 if the host machine has a small ARG_MAX
5878 is_directory (const char *path1
, const char *path2
, int linker
)
5880 int len1
= strlen (path1
);
5881 int len2
= strlen (path2
);
5882 char *path
= alloca (3 + len1
+ len2
);
5886 #ifndef SMALL_ARG_MAX
5891 /* Construct the path from the two parts. Ensure the string ends with "/.".
5892 The resulting path will be a directory even if the given path is a
5894 memcpy (path
, path1
, len1
);
5895 memcpy (path
+ len1
, path2
, len2
);
5896 cp
= path
+ len1
+ len2
;
5897 if (!IS_DIR_SEPARATOR (cp
[-1]))
5898 *cp
++ = DIR_SEPARATOR
;
5902 /* Exclude directories that the linker is known to search. */
5905 && strcmp (path
, concat (dir_separator_str
, "lib",
5906 dir_separator_str
, ".", NULL
)) == 0)
5908 && strcmp (path
, concat (dir_separator_str
, "usr",
5909 dir_separator_str
, "lib",
5910 dir_separator_str
, ".", NULL
)) == 0)))
5913 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5916 /* Set up the various global variables to indicate that we're processing
5917 the input file named FILENAME. */
5920 set_input (const char *filename
)
5924 input_filename
= filename
;
5925 input_filename_length
= strlen (input_filename
);
5927 input_basename
= input_filename
;
5928 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5929 /* Skip drive name so 'x:foo' is handled properly. */
5930 if (input_basename
[1] == ':')
5931 input_basename
+= 2;
5933 for (p
= input_basename
; *p
; p
++)
5934 if (IS_DIR_SEPARATOR (*p
))
5935 input_basename
= p
+ 1;
5937 /* Find a suffix starting with the last period,
5938 and set basename_length to exclude that suffix. */
5939 basename_length
= strlen (input_basename
);
5940 suffixed_basename_length
= basename_length
;
5941 p
= input_basename
+ basename_length
;
5942 while (p
!= input_basename
&& *p
!= '.')
5944 if (*p
== '.' && p
!= input_basename
)
5946 basename_length
= p
- input_basename
;
5947 input_suffix
= p
+ 1;
5952 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5953 we will need to do a stat on the input_filename. The
5954 INPUT_STAT_SET signals that the stat is needed. */
5958 /* On fatal signals, delete all the temporary files. */
5961 fatal_error (int signum
)
5963 signal (signum
, SIG_DFL
);
5964 delete_failure_queue ();
5965 delete_temp_files ();
5966 /* Get the same signal again, this time not handled,
5967 so its normal effect occurs. */
5968 kill (getpid (), signum
);
5971 extern int main (int, const char **);
5974 main (int argc
, const char **argv
)
5978 int linker_was_run
= 0;
5979 int lang_n_infiles
= 0;
5980 int num_linker_inputs
= 0;
5981 char *explicit_link_files
;
5984 struct user_specs
*uptr
;
5986 p
= argv
[0] + strlen (argv
[0]);
5987 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5991 xmalloc_set_program_name (programname
);
5993 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5994 /* Perform host dependent initialization when needed. */
5995 GCC_DRIVER_HOST_INITIALIZATION
;
5998 gcc_init_libintl ();
6000 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6001 signal (SIGINT
, fatal_error
);
6003 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6004 signal (SIGHUP
, fatal_error
);
6006 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6007 signal (SIGTERM
, fatal_error
);
6009 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6010 signal (SIGPIPE
, fatal_error
);
6013 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6014 receive the signal. A different setting is inheritable */
6015 signal (SIGCHLD
, SIG_DFL
);
6018 /* Allocate the argument vector. */
6021 obstack_init (&obstack
);
6023 /* Build multilib_select, et. al from the separate lines that make up each
6024 multilib selection. */
6026 const char *const *q
= multilib_raw
;
6029 obstack_init (&multilib_obstack
);
6030 while ((p
= *q
++) != (char *) 0)
6031 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6033 obstack_1grow (&multilib_obstack
, 0);
6034 multilib_select
= obstack_finish (&multilib_obstack
);
6036 q
= multilib_matches_raw
;
6037 while ((p
= *q
++) != (char *) 0)
6038 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6040 obstack_1grow (&multilib_obstack
, 0);
6041 multilib_matches
= obstack_finish (&multilib_obstack
);
6043 q
= multilib_exclusions_raw
;
6044 while ((p
= *q
++) != (char *) 0)
6045 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6047 obstack_1grow (&multilib_obstack
, 0);
6048 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6051 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6054 obstack_1grow (&multilib_obstack
, ' ');
6055 obstack_grow (&multilib_obstack
,
6056 multilib_defaults_raw
[i
],
6057 strlen (multilib_defaults_raw
[i
]));
6061 obstack_1grow (&multilib_obstack
, 0);
6062 multilib_defaults
= obstack_finish (&multilib_obstack
);
6065 /* Set up to remember the pathname of gcc and any options
6066 needed for collect. We use argv[0] instead of programname because
6067 we need the complete pathname. */
6068 obstack_init (&collect_obstack
);
6069 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6070 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6071 putenv (obstack_finish (&collect_obstack
));
6073 #ifdef INIT_ENVIRONMENT
6074 /* Set up any other necessary machine specific environment variables. */
6075 putenv (INIT_ENVIRONMENT
);
6078 /* Make a table of what switches there are (switches, n_switches).
6079 Make a table of specified input files (infiles, n_infiles).
6080 Decode switches that are handled locally. */
6082 process_command (argc
, argv
);
6084 /* Initialize the vector of specs to just the default.
6085 This means one element containing 0s, as a terminator. */
6087 compilers
= xmalloc (sizeof default_compilers
);
6088 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6089 n_compilers
= n_default_compilers
;
6091 /* Read specs from a file if there is one. */
6093 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6094 spec_version
, dir_separator_str
, NULL
);
6095 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6097 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6098 /* Read the specs file unless it is a default one. */
6099 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6100 read_specs (specs_file
, TRUE
);
6104 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6105 for any override of as, ld and libraries. */
6106 specs_file
= alloca (strlen (standard_exec_prefix
)
6107 + strlen (just_machine_suffix
) + sizeof ("specs"));
6109 strcpy (specs_file
, standard_exec_prefix
);
6110 strcat (specs_file
, just_machine_suffix
);
6111 strcat (specs_file
, "specs");
6112 if (access (specs_file
, R_OK
) == 0)
6113 read_specs (specs_file
, TRUE
);
6115 /* Process any configure-time defaults specified for the command line
6116 options, via OPTION_DEFAULT_SPECS. */
6117 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6118 do_option_spec (option_default_specs
[i
].name
,
6119 option_default_specs
[i
].spec
);
6121 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6122 of the command line. */
6124 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6125 do_self_spec (driver_self_specs
[i
]);
6127 /* If not cross-compiling, look for executables in the standard
6129 if (*cross_compile
== '0')
6131 if (*md_exec_prefix
)
6133 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6134 PREFIX_PRIORITY_LAST
, 0, 0);
6138 /* Process sysroot_suffix_spec. */
6139 if (*sysroot_suffix_spec
!= 0
6140 && do_spec_2 (sysroot_suffix_spec
) == 0)
6142 if (argbuf_index
> 1)
6143 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6144 else if (argbuf_index
== 1)
6145 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6148 /* Process sysroot_hdrs_suffix_spec. */
6149 if (*sysroot_hdrs_suffix_spec
!= 0
6150 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6152 if (argbuf_index
> 1)
6153 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6154 else if (argbuf_index
== 1)
6155 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6158 /* Look for startfiles in the standard places. */
6159 if (*startfile_prefix_spec
!= 0
6160 && do_spec_2 (startfile_prefix_spec
) == 0
6161 && do_spec_1 (" ", 0, NULL
) == 0)
6164 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6165 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6166 PREFIX_PRIORITY_LAST
, 0, 1);
6168 /* We should eventually get rid of all these and stick to
6169 startfile_prefix_spec exclusively. */
6170 else if (*cross_compile
== '0' || target_system_root
)
6172 if (*md_exec_prefix
)
6173 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6174 PREFIX_PRIORITY_LAST
, 0, 1);
6176 if (*md_startfile_prefix
)
6177 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6178 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6180 if (*md_startfile_prefix_1
)
6181 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6182 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6184 /* If standard_startfile_prefix is relative, base it on
6185 standard_exec_prefix. This lets us move the installed tree
6186 as a unit. If GCC_EXEC_PREFIX is defined, base
6187 standard_startfile_prefix on that as well.
6189 If the prefix is relative, only search it for native compilers;
6190 otherwise we will search a directory containing host libraries. */
6191 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6192 add_sysrooted_prefix (&startfile_prefixes
,
6193 standard_startfile_prefix
, "BINUTILS",
6194 PREFIX_PRIORITY_LAST
, 0, 1);
6195 else if (*cross_compile
== '0')
6197 if (gcc_exec_prefix
)
6198 add_prefix (&startfile_prefixes
,
6199 concat (gcc_exec_prefix
, machine_suffix
,
6200 standard_startfile_prefix
, NULL
),
6201 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6202 add_prefix (&startfile_prefixes
,
6203 concat (standard_exec_prefix
,
6205 standard_startfile_prefix
, NULL
),
6206 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6209 if (*standard_startfile_prefix_1
)
6210 add_sysrooted_prefix (&startfile_prefixes
,
6211 standard_startfile_prefix_1
, "BINUTILS",
6212 PREFIX_PRIORITY_LAST
, 0, 1);
6213 if (*standard_startfile_prefix_2
)
6214 add_sysrooted_prefix (&startfile_prefixes
,
6215 standard_startfile_prefix_2
, "BINUTILS",
6216 PREFIX_PRIORITY_LAST
, 0, 1);
6219 /* Process any user specified specs in the order given on the command
6221 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6223 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6225 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6228 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6229 if (gcc_exec_prefix
)
6230 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6231 spec_version
, dir_separator_str
, NULL
);
6233 /* Now we have the specs.
6234 Set the `valid' bits for switches that match anything in any spec. */
6236 validate_all_switches ();
6238 /* Now that we have the switches and the specs, set
6239 the subdirectory based on the options. */
6240 set_multilib_dir ();
6242 /* Warn about any switches that no pass was interested in. */
6244 for (i
= 0; (int) i
< n_switches
; i
++)
6245 if (! switches
[i
].validated
)
6246 error ("unrecognized option `-%s'", switches
[i
].part1
);
6248 /* Obey some of the options. */
6250 if (print_search_dirs
)
6252 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6253 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6254 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6258 if (print_file_name
)
6260 printf ("%s\n", find_file (print_file_name
));
6264 if (print_prog_name
)
6266 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6267 printf ("%s\n", (newname
? newname
: print_prog_name
));
6271 if (print_multi_lib
)
6273 print_multilib_info ();
6277 if (print_multi_directory
)
6279 if (multilib_dir
== NULL
)
6282 printf ("%s\n", multilib_dir
);
6286 if (print_multi_os_directory
)
6288 if (multilib_os_dir
== NULL
)
6291 printf ("%s\n", multilib_os_dir
);
6295 if (target_help_flag
)
6297 /* Print if any target specific options. */
6299 /* We do not exit here. Instead we have created a fake input file
6300 called 'target-dummy' which needs to be compiled, and we pass this
6301 on to the various sub-processes, along with the --target-help
6305 if (print_help_list
)
6311 printf (_("\nFor bug reporting instructions, please see:\n"));
6312 printf ("%s.\n", bug_report_url
);
6317 /* We do not exit here. Instead we have created a fake input file
6318 called 'help-dummy' which needs to be compiled, and we pass this
6319 on the various sub-processes, along with the --help switch. */
6327 notice ("Configured with: %s\n", configuration_arguments
);
6329 #ifdef THREAD_MODEL_SPEC
6330 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6331 but there's no point in doing all this processing just to get
6332 thread_model back. */
6333 obstack_init (&obstack
);
6334 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6335 obstack_1grow (&obstack
, '\0');
6336 thrmod
= obstack_finish (&obstack
);
6338 thrmod
= thread_model
;
6341 notice ("Thread model: %s\n", thrmod
);
6343 /* compiler_version is truncated at the first space when initialized
6344 from version string, so truncate version_string at the first space
6345 before comparing. */
6346 for (n
= 0; version_string
[n
]; n
++)
6347 if (version_string
[n
] == ' ')
6350 if (! strncmp (version_string
, compiler_version
, n
)
6351 && compiler_version
[n
] == 0)
6352 notice ("gcc version %s\n", version_string
);
6354 notice ("gcc driver version %s executing gcc version %s\n",
6355 version_string
, compiler_version
);
6361 if (n_infiles
== added_libraries
)
6362 fatal ("no input files");
6364 /* Make a place to record the compiler output file names
6365 that correspond to the input files. */
6368 i
+= lang_specific_extra_outfiles
;
6369 outfiles
= xcalloc (i
, sizeof (char *));
6371 /* Record which files were specified explicitly as link input. */
6373 explicit_link_files
= xcalloc (1, n_infiles
);
6376 combine_inputs
= true;
6378 combine_inputs
= false;
6380 for (i
= 0; (int) i
< n_infiles
; i
++)
6382 const char *name
= infiles
[i
].name
;
6383 struct compiler
*compiler
= lookup_compiler (name
,
6385 infiles
[i
].language
);
6387 if (compiler
&& !(compiler
->combinable
))
6388 combine_inputs
= false;
6390 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6391 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6392 infiles
[i
].incompiler
= compiler
;
6396 input_file_compiler
= compiler
;
6397 infiles
[i
].incompiler
= compiler
;
6401 /* Since there is no compiler for this input file, assume it is a
6403 explicit_link_files
[i
] = 1;
6404 infiles
[i
].incompiler
= NULL
;
6406 infiles
[i
].compiled
= false;
6407 infiles
[i
].preprocessed
= false;
6410 if (combine_flag
&& save_temps_flag
)
6412 bool save_combine_inputs
= combine_inputs
;
6413 /* Must do a separate pre-processing pass for C & Objective-C files, to
6414 obtain individual .i files. */
6416 combine_inputs
= false;
6417 for (i
= 0; (int) i
< n_infiles
; i
++)
6419 int this_file_error
= 0;
6421 input_file_number
= i
;
6422 set_input (infiles
[i
].name
);
6423 if (infiles
[i
].incompiler
6424 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6425 input_file_compiler
= infiles
[i
].incompiler
;
6429 if (input_file_compiler
)
6431 if (input_file_compiler
->spec
[0] == '#')
6433 error ("%s: %s compiler not installed on this system",
6434 input_filename
, &input_file_compiler
->spec
[1]);
6435 this_file_error
= 1;
6439 value
= do_spec (input_file_compiler
->spec
);
6440 infiles
[i
].preprocessed
= true;
6441 if (have_o_argbuf_index
)
6442 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6445 infiles
[i
].incompiler
= lookup_compiler (infiles
[i
].name
,
6446 strlen (infiles
[i
].name
),
6447 infiles
[i
].language
);
6450 this_file_error
= 1;
6454 if (this_file_error
)
6456 delete_failure_queue ();
6460 clear_failure_queue ();
6462 combine_inputs
= save_combine_inputs
;
6465 for (i
= 0; (int) i
< n_infiles
; i
++)
6467 int this_file_error
= 0;
6469 /* Tell do_spec what to substitute for %i. */
6471 input_file_number
= i
;
6472 set_input (infiles
[i
].name
);
6474 if (infiles
[i
].compiled
)
6477 /* Use the same thing in %o, unless cp->spec says otherwise. */
6479 outfiles
[i
] = input_filename
;
6481 /* Figure out which compiler from the file's suffix. */
6483 if (! combine_inputs
)
6485 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6486 infiles
[i
].language
);
6488 input_file_compiler
= infiles
[i
].incompiler
;
6490 if (input_file_compiler
)
6492 /* Ok, we found an applicable compiler. Run its spec. */
6494 if (input_file_compiler
->spec
[0] == '#')
6496 error ("%s: %s compiler not installed on this system",
6497 input_filename
, &input_file_compiler
->spec
[1]);
6498 this_file_error
= 1;
6502 value
= do_spec (input_file_compiler
->spec
);
6503 infiles
[i
].compiled
= true;
6505 this_file_error
= 1;
6509 /* If this file's name does not contain a recognized suffix,
6510 record it as explicit linker input. */
6513 explicit_link_files
[i
] = 1;
6515 /* Clear the delete-on-failure queue, deleting the files in it
6516 if this compilation failed. */
6518 if (this_file_error
)
6520 delete_failure_queue ();
6524 /* If this compilation succeeded, don't delete those files later. */
6525 clear_failure_queue ();
6528 /* Reset the output file name to the first input file name, for use
6529 with %b in LINK_SPEC on a target that prefers not to emit a.out
6532 set_input (infiles
[0].name
);
6534 if (error_count
== 0)
6536 /* Make sure INPUT_FILE_NUMBER points to first available open
6538 input_file_number
= n_infiles
;
6539 if (lang_specific_pre_link ())
6543 /* Determine if there are any linker input files. */
6544 num_linker_inputs
= 0;
6545 for (i
= 0; (int) i
< n_infiles
; i
++)
6546 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6547 num_linker_inputs
++;
6549 /* Run ld to link all the compiler output files. */
6551 if (num_linker_inputs
> 0 && error_count
== 0)
6553 int tmp
= execution_count
;
6555 /* We'll use ld if we can't find collect2. */
6556 if (! strcmp (linker_name_spec
, "collect2"))
6558 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6560 linker_name_spec
= "ld";
6562 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6564 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6565 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6567 value
= do_spec (link_command_spec
);
6570 linker_was_run
= (tmp
!= execution_count
);
6573 /* If options said don't run linker,
6574 complain about input files to be given to the linker. */
6576 if (! linker_was_run
&& error_count
== 0)
6577 for (i
= 0; (int) i
< n_infiles
; i
++)
6578 if (explicit_link_files
[i
])
6579 error ("%s: linker input file unused because linking not done",
6582 /* Delete some or all of the temporary files we made. */
6585 delete_failure_queue ();
6586 delete_temp_files ();
6588 if (print_help_list
)
6590 printf (("\nFor bug reporting instructions, please see:\n"));
6591 printf ("%s\n", bug_report_url
);
6594 return (signal_count
!= 0 ? 2
6595 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6599 /* Find the proper compilation spec for the file name NAME,
6600 whose length is LENGTH. LANGUAGE is the specified language,
6601 or 0 if this file is to be passed to the linker. */
6603 static struct compiler
*
6604 lookup_compiler (const char *name
, size_t length
, const char *language
)
6606 struct compiler
*cp
;
6608 /* If this was specified by the user to be a linker input, indicate that. */
6609 if (language
!= 0 && language
[0] == '*')
6612 /* Otherwise, look for the language, if one is spec'd. */
6615 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6616 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6619 error ("language %s not recognized", language
);
6623 /* Look for a suffix. */
6624 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6626 if (/* The suffix `-' matches only the file name `-'. */
6627 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6628 || (strlen (cp
->suffix
) < length
6629 /* See if the suffix matches the end of NAME. */
6630 && !strcmp (cp
->suffix
,
6631 name
+ length
- strlen (cp
->suffix
))
6636 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6637 /* Look again, but case-insensitively this time. */
6639 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6641 if (/* The suffix `-' matches only the file name `-'. */
6642 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6643 || (strlen (cp
->suffix
) < length
6644 /* See if the suffix matches the end of NAME. */
6645 && ((!strcmp (cp
->suffix
,
6646 name
+ length
- strlen (cp
->suffix
))
6647 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6648 && !strcasecmp (cp
->suffix
,
6649 name
+ length
- strlen (cp
->suffix
)))
6655 if (cp
>= compilers
)
6657 if (cp
->spec
[0] != '@')
6658 /* A non-alias entry: return it. */
6661 /* An alias entry maps a suffix to a language.
6662 Search for the language; pass 0 for NAME and LENGTH
6663 to avoid infinite recursion if language not found. */
6664 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6670 save_string (const char *s
, int len
)
6672 char *result
= xmalloc (len
+ 1);
6674 memcpy (result
, s
, len
);
6680 pfatal_with_name (const char *name
)
6682 perror_with_name (name
);
6683 delete_temp_files ();
6688 perror_with_name (const char *name
)
6690 error ("%s: %s", name
, xstrerror (errno
));
6694 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6698 int save_errno
= errno
;
6700 /* Space for trailing '\0' is in %s. */
6701 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6702 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6708 pfatal_with_name (errmsg_fmt
);
6711 /* Output an error message and exit. */
6716 fatal ("internal gcc abort");
6719 /* Output an error message and exit. */
6722 fatal (const char *msgid
, ...)
6726 va_start (ap
, msgid
);
6728 fprintf (stderr
, "%s: ", programname
);
6729 vfprintf (stderr
, _(msgid
), ap
);
6731 fprintf (stderr
, "\n");
6732 delete_temp_files ();
6737 error (const char *msgid
, ...)
6741 va_start (ap
, msgid
);
6742 fprintf (stderr
, "%s: ", programname
);
6743 vfprintf (stderr
, _(msgid
), ap
);
6746 fprintf (stderr
, "\n");
6750 notice (const char *msgid
, ...)
6754 va_start (ap
, msgid
);
6755 vfprintf (stderr
, _(msgid
), ap
);
6760 validate_switches_from_spec (const char *spec
)
6762 const char *p
= spec
;
6765 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6766 /* We have a switch spec. */
6767 p
= validate_switches (p
+ 1);
6771 validate_all_switches (void)
6773 struct compiler
*comp
;
6774 struct spec_list
*spec
;
6776 for (comp
= compilers
; comp
->spec
; comp
++)
6777 validate_switches_from_spec (comp
->spec
);
6779 /* Look through the linked list of specs read from the specs file. */
6780 for (spec
= specs
; spec
; spec
= spec
->next
)
6781 validate_switches_from_spec (*spec
->ptr_spec
);
6783 validate_switches_from_spec (link_command_spec
);
6786 /* Look at the switch-name that comes after START
6787 and mark as valid all supplied switches that match it. */
6790 validate_switches (const char *start
)
6792 const char *p
= start
;
6796 bool suffix
= false;
6797 bool starred
= false;
6799 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6812 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6813 || *p
== ',' || *p
== '.' || *p
== '@')
6818 starred
= true, p
++;
6824 /* Mark all matching switches as valid. */
6825 for (i
= 0; i
< n_switches
; i
++)
6826 if (!strncmp (switches
[i
].part1
, atom
, len
)
6827 && (starred
|| switches
[i
].part1
[len
] == 0))
6828 switches
[i
].validated
= 1;
6832 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6835 if (*p
&& p
[-1] == ':')
6837 while (*p
&& *p
!= ';' && *p
!= '}')
6842 if (*p
== '{' || *p
== '<')
6843 p
= validate_switches (p
+1);
6844 else if (p
[0] == 'W' && p
[1] == '{')
6845 p
= validate_switches (p
+2);
6852 if (*p
&& p
[-1] == ';')
6866 static struct mdswitchstr
*mdswitches
;
6867 static int n_mdswitches
;
6869 /* Check whether a particular argument was used. The first time we
6870 canonicalize the switches to keep only the ones we care about. */
6873 used_arg (const char *p
, int len
)
6878 const char *replace
;
6883 static struct mswitchstr
*mswitches
;
6884 static int n_mswitches
;
6889 struct mswitchstr
*matches
;
6893 /* Break multilib_matches into the component strings of string
6894 and replacement string. */
6895 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6899 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6901 q
= multilib_matches
;
6911 matches
[i
].len
= q
- matches
[i
].str
;
6913 matches
[i
].replace
= ++q
;
6914 while (*q
!= ';' && *q
!= '\0')
6920 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6926 /* Now build a list of the replacement string for switches that we care
6927 about. Make sure we allocate at least one entry. This prevents
6928 xmalloc from calling fatal, and prevents us from re-executing this
6931 = xmalloc (sizeof (struct mswitchstr
)
6932 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6933 for (i
= 0; i
< n_switches
; i
++)
6934 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6936 int xlen
= strlen (switches
[i
].part1
);
6937 for (j
= 0; j
< cnt
; j
++)
6938 if (xlen
== matches
[j
].len
6939 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6941 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6942 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6943 mswitches
[n_mswitches
].replace
= (char *) 0;
6944 mswitches
[n_mswitches
].rep_len
= 0;
6950 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6951 on the command line nor any options mutually incompatible with
6953 for (i
= 0; i
< n_mdswitches
; i
++)
6957 for (q
= multilib_options
; *q
!= '\0'; q
++)
6963 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6964 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6966 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6973 if (*q
!= ' ' && *q
!= '\0')
6975 while (*r
!= ' ' && *r
!= '\0')
6978 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6981 if (used_arg (r
, q
- r
))
6986 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6987 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6988 mswitches
[n_mswitches
].replace
= (char *) 0;
6989 mswitches
[n_mswitches
].rep_len
= 0;
7002 for (i
= 0; i
< n_mswitches
; i
++)
7003 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7010 default_arg (const char *p
, int len
)
7014 for (i
= 0; i
< n_mdswitches
; i
++)
7015 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7021 /* Work out the subdirectory to use based on the options. The format of
7022 multilib_select is a list of elements. Each element is a subdirectory
7023 name followed by a list of options followed by a semicolon. The format
7024 of multilib_exclusions is the same, but without the preceding
7025 directory. First gcc will check the exclusions, if none of the options
7026 beginning with an exclamation point are present, and all of the other
7027 options are present, then we will ignore this completely. Passing
7028 that, gcc will consider each multilib_select in turn using the same
7029 rules for matching the options. If a match is found, that subdirectory
7033 set_multilib_dir (void)
7036 unsigned int this_path_len
;
7037 const char *this_path
, *this_arg
;
7038 const char *start
, *end
;
7040 int ok
, ndfltok
, first
;
7043 start
= multilib_defaults
;
7044 while (*start
== ' ' || *start
== '\t')
7046 while (*start
!= '\0')
7049 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7051 while (*start
== ' ' || *start
== '\t')
7059 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7060 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7062 while (*start
== ' ' || *start
== '\t')
7068 for (end
= start
+ 1;
7069 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7072 obstack_grow (&multilib_obstack
, start
, end
- start
);
7073 obstack_1grow (&multilib_obstack
, 0);
7074 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7075 mdswitches
[i
++].len
= end
- start
;
7082 p
= multilib_exclusions
;
7085 /* Ignore newlines. */
7092 /* Check the arguments. */
7106 while (*p
!= ' ' && *p
!= ';')
7113 if (*this_arg
!= '!')
7121 ok
= used_arg (this_arg
, p
- this_arg
);
7136 p
= multilib_select
;
7139 /* Ignore newlines. */
7146 /* Get the initial path. */
7154 this_path_len
= p
- this_path
;
7156 /* Check the arguments. */
7172 while (*p
!= ' ' && *p
!= ';')
7179 if (*this_arg
!= '!')
7187 /* If this is a default argument, we can just ignore it.
7188 This is true even if this_arg begins with '!'. Beginning
7189 with '!' does not mean that this argument is necessarily
7190 inappropriate for this library: it merely means that
7191 there is a more specific library which uses this
7192 argument. If this argument is a default, we need not
7193 consider that more specific library. */
7194 ok
= used_arg (this_arg
, p
- this_arg
);
7201 if (default_arg (this_arg
, p
- this_arg
))
7210 if (this_path_len
!= 1
7211 || this_path
[0] != '.')
7213 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7216 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7217 new_multilib_dir
[this_path_len
] = '\0';
7218 q
= strchr (new_multilib_dir
, ':');
7221 multilib_dir
= new_multilib_dir
;
7228 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7230 while (q
< end
&& *q
!= ':')
7234 char *new_multilib_os_dir
= xmalloc (end
- q
);
7235 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7236 new_multilib_os_dir
[end
- q
- 1] = '\0';
7237 multilib_os_dir
= new_multilib_os_dir
;
7245 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7246 && strcmp (multilib_os_dir
, ".") == 0)
7248 free ((char *) multilib_os_dir
);
7249 multilib_os_dir
= NULL
;
7251 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7252 multilib_os_dir
= multilib_dir
;
7255 /* Print out the multiple library subdirectory selection
7256 information. This prints out a series of lines. Each line looks
7257 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7258 required. Only the desired options are printed out, the negative
7259 matches. The options are print without a leading dash. There are
7260 no spaces to make it easy to use the information in the shell.
7261 Each subdirectory is printed only once. This assumes the ordering
7262 generated by the genmultilib script. Also, we leave out ones that match
7266 print_multilib_info (void)
7268 const char *p
= multilib_select
;
7269 const char *last_path
= 0, *this_path
;
7271 unsigned int last_path_len
= 0;
7276 /* Ignore newlines. */
7283 /* Get the initial path. */
7292 /* When --disable-multilib was used but target defines
7293 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7294 to find multilib_os_dir, so skip them from output. */
7295 if (this_path
[0] == '.' && this_path
[1] == ':')
7298 /* Check for matches with the multilib_exclusions. We don't bother
7299 with the '!' in either list. If any of the exclusion rules match
7300 all of its options with the select rule, we skip it. */
7302 const char *e
= multilib_exclusions
;
7303 const char *this_arg
;
7308 /* Ignore newlines. */
7315 /* Check the arguments. */
7332 while (*e
!= ' ' && *e
!= ';')
7343 int len
= e
- this_arg
;
7350 while (*q
!= ' ' && *q
!= ';')
7357 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7358 default_arg (this_arg
, e
- this_arg
))
7388 /* If this is a duplicate, skip it. */
7389 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7390 && ! strncmp (last_path
, this_path
, last_path_len
));
7392 last_path
= this_path
;
7393 last_path_len
= p
- this_path
;
7396 /* If this directory requires any default arguments, we can skip
7397 it. We will already have printed a directory identical to
7398 this one which does not require that default argument. */
7416 while (*q
!= ' ' && *q
!= ';')
7424 && default_arg (arg
, q
- arg
))
7439 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7458 use_arg
= *p
!= '!';
7463 while (*p
!= ' ' && *p
!= ';')
7478 /* If there are extra options, print them now. */
7479 if (multilib_extra
&& *multilib_extra
)
7481 int print_at
= TRUE
;
7484 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7505 /* if-exists built-in spec function.
7507 Checks to see if the file specified by the absolute pathname in
7508 ARGS exists. Returns that pathname if found.
7510 The usual use for this function is to check for a library file
7511 (whose name has been expanded with %s). */
7514 if_exists_spec_function (int argc
, const char **argv
)
7516 /* Must have only one argument. */
7517 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7523 /* if-exists-else built-in spec function.
7525 This is like if-exists, but takes an additional argument which
7526 is returned if the first argument does not exist. */
7529 if_exists_else_spec_function (int argc
, const char **argv
)
7531 /* Must have exactly two arguments. */
7535 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))