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, 2005 Free Software Foundation,
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 This paragraph is here to try to keep Sun CC from dying.
24 The number of chars here seems crucial!!!! */
26 /* This program is the user interface to the C compiler and possibly to
27 other compilers. It is used because compilation is a complicated procedure
28 which involves running several programs and passing temporary files between
29 them, forwarding the users switches to those programs selectively,
30 and deleting the temporary files at the end.
32 CC recognizes how to compile each input file by suffixes in the file names.
33 Once it knows which kind of compilation to perform, the procedure for
34 compilation is specified by a string called a "spec". */
36 /* A Short Introduction to Adding a Command-Line Option.
38 Before adding a command-line option, consider if it is really
39 necessary. Each additional command-line option adds complexity and
40 is difficult to remove in subsequent versions.
42 In the following, consider adding the command-line argument
45 1. Each command-line option is specified in the specs file. The
46 notation is described below in the comment entitled "The Specs
49 2. In this file, add an entry to "option_map" equating the long
50 `--' argument version and any shorter, single letter version. Read
51 the comments in the declaration of "struct option_map" for an
52 explanation. Do not omit the first `-'.
54 3. Look in the "specs" file to determine which program or option
55 list should be given the argument, e.g., "cc1_options". Add the
56 appropriate syntax for the shorter option version to the
57 corresponding "const char *" entry in this file. Omit the first
58 `-' from the option. For example, use `-bar', rather than `--bar'.
60 4. If the argument takes an argument, e.g., `--baz argument1',
61 modify either DEFAULT_SWITCH_TAKES_ARG or
62 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
65 5. Document the option in this file's display_help(). If the
66 option is passed to a subprogram, modify its corresponding
67 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
70 6. Compile and test. Make sure that your new specs file is being
71 read. For example, use a debugger to investigate the value of
72 "specs_file" in main(). */
76 #include "coretypes.h"
77 #include "multilib.h" /* before tm.h */
80 #if ! defined( SIGCHLD ) && defined( SIGCLD )
81 # define SIGCHLD SIGCLD
89 #ifdef HAVE_SYS_RESOURCE_H
90 #include <sys/resource.h>
92 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
93 extern int getrusage (int, struct rusage
*);
96 /* By default there is no special suffix for target executables. */
97 /* FIXME: when autoconf is fixed, remove the host check - dj */
98 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
99 #define HAVE_TARGET_EXECUTABLE_SUFFIX
102 /* By default there is no special suffix for host executables. */
103 #ifdef HOST_EXECUTABLE_SUFFIX
104 #define HAVE_HOST_EXECUTABLE_SUFFIX
106 #define HOST_EXECUTABLE_SUFFIX ""
109 /* By default, the suffix for target object files is ".o". */
110 #ifdef TARGET_OBJECT_SUFFIX
111 #define HAVE_TARGET_OBJECT_SUFFIX
113 #define TARGET_OBJECT_SUFFIX ".o"
116 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
118 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
119 #ifndef LIBRARY_PATH_ENV
120 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
124 #define kill(p,s) raise(s)
127 /* If a stage of compilation returns an exit status >= 1,
128 compilation of that file ceases. */
130 #define MIN_FATAL_STATUS 1
132 /* Flag set by cppspec.c to 1. */
135 /* Flag saying to pass the greatest exit code returned by a sub-process
136 to the calling program. */
137 static int pass_exit_codes
;
139 /* Definition of string containing the arguments given to configure. */
140 #include "configargs.h"
142 /* Flag saying to print the directories gcc will search through looking for
143 programs, libraries, etc. */
145 static int print_search_dirs
;
147 /* Flag saying to print the full filename of this file
148 as found through our usual search mechanism. */
150 static const char *print_file_name
= NULL
;
152 /* As print_file_name, but search for executable file. */
154 static const char *print_prog_name
= NULL
;
156 /* Flag saying to print the relative path we'd use to
157 find libgcc.a given the current compiler flags. */
159 static int print_multi_directory
;
161 /* Flag saying to print the relative path we'd use to
162 find OS libraries given the current compiler flags. */
164 static int print_multi_os_directory
;
166 /* Flag saying to print the list of subdirectories and
167 compiler flags used to select them in a standard form. */
169 static int print_multi_lib
;
171 /* Flag saying to print the command line options understood by gcc and its
174 static int print_help_list
;
176 /* Flag indicating whether we should print the command and arguments */
178 static int verbose_flag
;
180 /* Flag indicating whether we should ONLY print the command and
181 arguments (like verbose_flag) without executing the command.
182 Displayed arguments are quoted so that the generated command
183 line is suitable for execution. This is intended for use in
184 shell scripts to capture the driver-generated command line. */
185 static int verbose_only_flag
;
187 /* Flag indicating to print target specific command line options. */
189 static int target_help_flag
;
191 /* Flag indicating whether we should report subprocess execution times
192 (if this is supported by the system - see pexecute.c). */
194 static int report_times
;
196 /* Nonzero means place this string before uses of /, so that include
197 and library files can be found in an alternate location. */
199 #ifdef TARGET_SYSTEM_ROOT
200 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
202 static const char *target_system_root
= 0;
205 /* Nonzero means pass the updated target_system_root to the compiler. */
207 static int target_system_root_changed
;
209 /* Nonzero means append this string to target_system_root. */
211 static const char *target_sysroot_suffix
= 0;
213 /* Nonzero means append this string to target_system_root for headers. */
215 static const char *target_sysroot_hdrs_suffix
= 0;
217 /* Nonzero means write "temp" files in source directory
218 and use the source file's name in them, and don't delete them. */
220 static int save_temps_flag
;
222 /* Nonzero means pass multiple source files to the compiler at one time. */
224 static int combine_flag
= 0;
226 /* Nonzero means use pipes to communicate between subprocesses.
227 Overridden by either of the above two flags. */
229 static int use_pipes
;
231 /* The compiler version. */
233 static const char *compiler_version
;
235 /* The target version specified with -V */
237 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
239 /* The target machine specified with -b. */
241 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
243 /* Nonzero if cross-compiling.
244 When -b is used, the value comes from the `specs' file. */
247 static const char *cross_compile
= "1";
249 static const char *cross_compile
= "0";
252 #ifdef MODIFY_TARGET_NAME
254 /* Information on how to alter the target name based on a command-line
255 switch. The only case we support now is simply appending or deleting a
256 string to or from the end of the first part of the configuration name. */
258 static const struct modify_target
260 const char *const sw
;
261 const enum add_del
{ADD
, DELETE
} add_del
;
262 const char *const str
;
264 modify_target
[] = MODIFY_TARGET_NAME
;
267 /* The number of errors that have occurred; the link phase will not be
268 run if this is nonzero. */
269 static int error_count
= 0;
271 /* Greatest exit code of sub-processes that has been encountered up to
273 static int greatest_status
= 1;
275 /* This is the obstack which we use to allocate many strings. */
277 static struct obstack obstack
;
279 /* This is the obstack to build an environment variable to pass to
280 collect2 that describes all of the relevant switches of what to
281 pass the compiler in building the list of pointers to constructors
284 static struct obstack collect_obstack
;
286 /* These structs are used to collect resource usage information for
288 #ifdef HAVE_GETRUSAGE
289 static struct rusage rus
, prus
;
292 /* Forward declaration for prototypes. */
296 static void init_spec (void);
297 static void store_arg (const char *, int, int);
298 static char *load_specs (const char *);
299 static void read_specs (const char *, int);
300 static void set_spec (const char *, const char *);
301 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
302 static char *build_search_list (struct path_prefix
*, const char *, int);
303 static void putenv_from_prefixes (struct path_prefix
*, const char *);
304 static int access_check (const char *, int);
305 static char *find_a_file (struct path_prefix
*, const char *, int, int);
306 static void add_prefix (struct path_prefix
*, const char *, const char *,
308 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
309 const char *, int, int, int);
310 static void translate_options (int *, const char *const **);
311 static char *skip_whitespace (char *);
312 static void delete_if_ordinary (const char *);
313 static void delete_temp_files (void);
314 static void delete_failure_queue (void);
315 static void clear_failure_queue (void);
316 static int check_live_switch (int, int);
317 static const char *handle_braces (const char *);
318 static inline bool input_suffix_matches (const char *, const char *);
319 static inline bool switch_matches (const char *, const char *, int);
320 static inline void mark_matching_switches (const char *, const char *, int);
321 static inline void process_marked_switches (void);
322 static const char *process_brace_body (const char *, const char *, const char *, int, int);
323 static const struct spec_function
*lookup_spec_function (const char *);
324 static const char *eval_spec_function (const char *, const char *);
325 static const char *handle_spec_function (const char *);
326 static char *save_string (const char *, int);
327 static void set_collect_gcc_options (void);
328 static void do_spec_path (struct prefix_list
*, const char *, int, int, int, const char *, const char *);
329 static int do_spec_1 (const char *, int, const char *);
330 static int do_spec_2 (const char *);
331 static void do_option_spec (const char *, const char *);
332 static void do_self_spec (const char *);
333 static const char *find_file (const char *);
334 static int is_directory (const char *, const char *, int);
335 static const char *validate_switches (const char *);
336 static void validate_all_switches (void);
337 static inline void validate_switches_from_spec (const char *);
338 static void give_switch (int, int);
339 static int used_arg (const char *, int);
340 static int default_arg (const char *, int);
341 static void set_multilib_dir (void);
342 static void print_multilib_info (void);
343 static void perror_with_name (const char *);
344 static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN
;
345 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
346 static void display_help (void);
347 static void add_preprocessor_option (const char *, int);
348 static void add_assembler_option (const char *, int);
349 static void add_linker_option (const char *, int);
350 static void process_command (int, const char **);
351 static int execute (void);
352 static void alloc_args (void);
353 static void clear_args (void);
354 static void fatal_error (int);
355 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
356 static void init_gcc_specs (struct obstack
*, const char *, const char *,
359 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
360 static const char *convert_filename (const char *, int, int);
363 static const char *if_exists_spec_function (int, const char **);
364 static const char *if_exists_else_spec_function (int, const char **);
365 static const char *replace_outfile_spec_function (int, const char **);
367 /* The Specs Language
369 Specs are strings containing lines, each of which (if not blank)
370 is made up of a program name, and arguments separated by spaces.
371 The program name must be exact and start from root, since no path
372 is searched and it is unreliable to depend on the current working directory.
373 Redirection of input or output is not supported; the subprograms must
374 accept filenames saying what files to read and write.
376 In addition, the specs can contain %-sequences to substitute variable text
377 or for conditional text. Here is a table of all defined %-sequences.
378 Note that spaces are not generated automatically around the results of
379 expanding these sequences; therefore, you can concatenate them together
380 or with constant text in a single argument.
382 %% substitute one % into the program name or argument.
383 %i substitute the name of the input file being processed.
384 %b substitute the basename of the input file being processed.
385 This is the substring up to (and not including) the last period
386 and not including the directory.
387 %B same as %b, but include the file suffix (text after the last period).
389 substitute a file name that has suffix SUFFIX and is chosen
390 once per compilation, and mark the argument a la %d. To reduce
391 exposure to denial-of-service attacks, the file name is now
392 chosen in a way that is hard to predict even when previously
393 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
394 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
395 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
396 had been pre-processed. Previously, %g was simply substituted
397 with a file name chosen once per compilation, without regard
398 to any appended suffix (which was therefore treated just like
399 ordinary text), making such attacks more likely to succeed.
401 like %g, but if -pipe is in effect, expands simply to "-".
403 like %g, but if -pipe is in effect, expands to nothing. (We have both
404 %| and %m to accommodate differences between system assemblers; see
405 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
407 like %g, but generates a new temporary file name even if %uSUFFIX
410 substitutes the last file name generated with %uSUFFIX, generating a
411 new one if there is no such last file name. In the absence of any
412 %uSUFFIX, this is just like %gSUFFIX, except they don't share
413 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
414 would involve the generation of two distinct file names, one
415 for each `%g.s' and another for each `%U.s'. Previously, %U was
416 simply substituted with a file name chosen for the previous %u,
417 without regard to any appended suffix.
419 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
420 writable, and if save-temps is off; otherwise, substitute the name
421 of a temporary file, just like %u. This temporary file is not
422 meant for communication between processes, but rather as a junk
425 substitutes .SUFFIX for the suffixes of a matched switch's args when
426 it is subsequently output with %*. SUFFIX is terminated by the next
428 %d marks the argument containing or following the %d as a
429 temporary file name, so that that file will be deleted if CC exits
430 successfully. Unlike %g, this contributes no text to the argument.
431 %w marks the argument containing or following the %w as the
432 "output file" of this compilation. This puts the argument
433 into the sequence of arguments that %o will substitute later.
434 %V indicates that this compilation produces no "output file".
436 like %{...} but mark last argument supplied within
437 as a file to be deleted on failure.
438 %o substitutes the names of all the output files, with spaces
439 automatically placed around them. You should write spaces
440 around the %o as well or the results are undefined.
441 %o is for use in the specs for running the linker.
442 Input files whose names have no recognized suffix are not compiled
443 at all, but they are included among the output files, so they will
445 %O substitutes the suffix for object files. Note that this is
446 handled specially when it immediately follows %g, %u, or %U
447 (with or without a suffix argument) because of the need for
448 those to form complete file names. The handling is such that
449 %O is treated exactly as if it had already been substituted,
450 except that %g, %u, and %U do not currently support additional
451 SUFFIX characters following %O as they would following, for
453 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
454 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
455 and -B options) as necessary.
456 %s current argument is the name of a library or startup file of some sort.
457 Search for that file in a standard list of directories
458 and substitute the full name found.
459 %eSTR Print STR as an error message. STR is terminated by a newline.
460 Use this when inconsistent options are detected.
461 %nSTR Print STR as a notice. STR is terminated by a newline.
462 %x{OPTION} Accumulate an option for %X.
463 %X Output the accumulated linker options specified by compilations.
464 %Y Output the accumulated assembler options specified by compilations.
465 %Z Output the accumulated preprocessor options specified by compilations.
466 %a process ASM_SPEC as a spec.
467 This allows config.h to specify part of the spec for running as.
468 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
469 used here. This can be used to run a post-processor after the
470 assembler has done its job.
471 %D Dump out a -L option for each directory in startfile_prefixes.
472 If multilib_dir is set, extra entries are generated with it affixed.
473 %l process LINK_SPEC as a spec.
474 %L process LIB_SPEC as a spec.
475 %G process LIBGCC_SPEC as a spec.
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 %{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&trigraphs} %{W*&pedantic*} %{w}\
786 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
787 %{undef} %{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&trigraphs}\
799 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
800 %{Qn:-fno-ident} %{--help:--help}\
801 %{--target-help:--target-help}\
802 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
803 %{fsyntax-only:-o %j} %{-param*}\
804 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}";
806 static const char *asm_options
=
807 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
809 static const char *invoke_as
=
810 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
811 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
813 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
816 /* Some compilers have limits on line lengths, and the multilib_select
817 and/or multilib_matches strings can be very long, so we build them at
819 static struct obstack multilib_obstack
;
820 static const char *multilib_select
;
821 static const char *multilib_matches
;
822 static const char *multilib_defaults
;
823 static const char *multilib_exclusions
;
825 /* Check whether a particular argument is a default argument. */
827 #ifndef MULTILIB_DEFAULTS
828 #define MULTILIB_DEFAULTS { "" }
831 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
833 #ifndef DRIVER_SELF_SPECS
834 #define DRIVER_SELF_SPECS ""
837 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
839 #ifndef OPTION_DEFAULT_SPECS
840 #define OPTION_DEFAULT_SPECS { "", "" }
849 static const struct default_spec
850 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
854 struct user_specs
*next
;
855 const char *filename
;
858 static struct user_specs
*user_specs_head
, *user_specs_tail
;
860 #ifndef SWITCH_TAKES_ARG
861 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
864 #ifndef WORD_SWITCH_TAKES_ARG
865 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
868 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
869 /* This defines which switches stop a full compilation. */
870 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
871 ((CHAR) == 'c' || (CHAR) == 'S')
873 #ifndef SWITCH_CURTAILS_COMPILATION
874 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
875 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
879 /* Record the mapping from file suffixes for compilation specs. */
883 const char *suffix
; /* Use this compiler for input files
884 whose names end in this suffix. */
886 const char *spec
; /* To use this compiler, run this spec. */
888 const char *cpp_spec
; /* If non-NULL, substitute this spec
889 for `%C', rather than the usual
891 const int combinable
; /* If nonzero, compiler can deal with
892 multiple source files at once (IMA). */
893 const int needs_preprocessing
; /* If nonzero, source files need to
894 be run through a preprocessor. */
897 /* Pointer to a vector of `struct compiler' that gives the spec for
898 compiling a file, based on its suffix.
899 A file that does not end in any of these suffixes will be passed
900 unchanged to the loader and nothing else will be done to it.
902 An entry containing two 0s is used to terminate the vector.
904 If multiple entries match a file, the last matching one is used. */
906 static struct compiler
*compilers
;
908 /* Number of entries in `compilers', not counting the null terminator. */
910 static int n_compilers
;
912 /* The default list of file name suffixes and their compilation specs. */
914 static const struct compiler default_compilers
[] =
916 /* Add lists of suffixes of known languages here. If those languages
917 were not present when we built the driver, we will hit these copies
918 and be given a more meaningful error than "file not used since
919 linking is not done". */
920 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
921 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
922 {".mii", "#Objective-C++", 0, 0, 0},
923 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
924 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
925 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
926 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
927 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
928 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
929 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
930 {".FPP", "#Fortran", 0, 0, 0},
931 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
932 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
933 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
934 {".r", "#Ratfor", 0, 0, 0},
935 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
936 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
937 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
938 /* Next come the entries for C. */
939 {".c", "@c", 0, 1, 1},
941 /* cc1 has an integrated ISO C preprocessor. We should invoke the
942 external preprocessor if -save-temps is given. */
943 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
945 %{traditional|ftraditional:\
946 %eGNU C no longer supports -traditional without -E}\
948 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
949 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
950 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
952 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
953 cc1 %(cpp_unique_options) %(cc1_options)}}}\
954 %{!fsyntax-only:%(invoke_as)}} \
956 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
957 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
958 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
959 cc1 %(cpp_unique_options) %(cc1_options)}}\
960 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
962 "%{!E:%e-E required when input is from standard input}\
963 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
964 {".h", "@c-header", 0, 0, 0},
966 /* cc1 has an integrated ISO C preprocessor. We should invoke the
967 external preprocessor if -save-temps is given. */
968 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
970 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
971 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
972 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
974 -o %g.s %{!o*:--output-pch=%i.gch}\
975 %W{o*:--output-pch=%*}%V}\
976 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
977 cc1 %(cpp_unique_options) %(cc1_options)\
978 -o %g.s %{!o*:--output-pch=%i.gch}\
979 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
980 {".i", "@cpp-output", 0, 1, 0},
982 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
983 {".s", "@assembler", 0, 1, 0},
985 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
986 {".S", "@assembler-with-cpp", 0, 1, 0},
987 {"@assembler-with-cpp",
988 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
989 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
990 %{E|M|MM:%(cpp_debug_options)}\
991 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
992 as %(asm_debug) %(asm_options) %|.s %A }}}}"
994 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
995 %{E|M|MM:%(cpp_debug_options)}\
996 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
997 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1002 /* Mark end of table. */
1006 /* Number of elements in default_compilers, not counting the terminator. */
1008 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1010 /* A vector of options to give to the linker.
1011 These options are accumulated by %x,
1012 and substituted into the linker command with %X. */
1013 static int n_linker_options
;
1014 static char **linker_options
;
1016 /* A vector of options to give to the assembler.
1017 These options are accumulated by -Wa,
1018 and substituted into the assembler command with %Y. */
1019 static int n_assembler_options
;
1020 static char **assembler_options
;
1022 /* A vector of options to give to the preprocessor.
1023 These options are accumulated by -Wp,
1024 and substituted into the preprocessor command with %Z. */
1025 static int n_preprocessor_options
;
1026 static char **preprocessor_options
;
1028 /* Define how to map long options into short ones. */
1030 /* This structure describes one mapping. */
1033 /* The long option's name. */
1034 const char *const name
;
1035 /* The equivalent short option. */
1036 const char *const equivalent
;
1037 /* Argument info. A string of flag chars; NULL equals no options.
1038 a => argument required.
1039 o => argument optional.
1040 j => join argument to equivalent, making one word.
1041 * => require other text after NAME as an argument. */
1042 const char *const arg_info
;
1045 /* This is the table of mappings. Mappings are tried sequentially
1046 for each option encountered; the first one that matches, wins. */
1048 static const struct option_map option_map
[] =
1050 {"--all-warnings", "-Wall", 0},
1051 {"--ansi", "-ansi", 0},
1052 {"--assemble", "-S", 0},
1053 {"--assert", "-A", "a"},
1054 {"--classpath", "-fclasspath=", "aj"},
1055 {"--bootclasspath", "-fbootclasspath=", "aj"},
1056 {"--CLASSPATH", "-fclasspath=", "aj"},
1057 {"--combine", "-combine", 0},
1058 {"--comments", "-C", 0},
1059 {"--comments-in-macros", "-CC", 0},
1060 {"--compile", "-c", 0},
1061 {"--debug", "-g", "oj"},
1062 {"--define-macro", "-D", "aj"},
1063 {"--dependencies", "-M", 0},
1064 {"--dump", "-d", "a"},
1065 {"--dumpbase", "-dumpbase", "a"},
1066 {"--encoding", "-fencoding=", "aj"},
1067 {"--entry", "-e", 0},
1068 {"--extra-warnings", "-W", 0},
1069 {"--extdirs", "-fextdirs=", "aj"},
1070 {"--for-assembler", "-Wa", "a"},
1071 {"--for-linker", "-Xlinker", "a"},
1072 {"--force-link", "-u", "a"},
1073 {"--imacros", "-imacros", "a"},
1074 {"--include", "-include", "a"},
1075 {"--include-barrier", "-I-", 0},
1076 {"--include-directory", "-I", "aj"},
1077 {"--include-directory-after", "-idirafter", "a"},
1078 {"--include-prefix", "-iprefix", "a"},
1079 {"--include-with-prefix", "-iwithprefix", "a"},
1080 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1081 {"--include-with-prefix-after", "-iwithprefix", "a"},
1082 {"--language", "-x", "a"},
1083 {"--library-directory", "-L", "a"},
1084 {"--machine", "-m", "aj"},
1085 {"--machine-", "-m", "*j"},
1086 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1087 {"--no-line-commands", "-P", 0},
1088 {"--no-precompiled-includes", "-noprecomp", 0},
1089 {"--no-standard-includes", "-nostdinc", 0},
1090 {"--no-standard-libraries", "-nostdlib", 0},
1091 {"--no-warnings", "-w", 0},
1092 {"--optimize", "-O", "oj"},
1093 {"--output", "-o", "a"},
1094 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1095 {"--param", "--param", "a"},
1096 {"--pass-exit-codes", "-pass-exit-codes", 0},
1097 {"--pedantic", "-pedantic", 0},
1098 {"--pedantic-errors", "-pedantic-errors", 0},
1099 {"--pie", "-pie", 0},
1100 {"--pipe", "-pipe", 0},
1101 {"--prefix", "-B", "a"},
1102 {"--preprocess", "-E", 0},
1103 {"--print-search-dirs", "-print-search-dirs", 0},
1104 {"--print-file-name", "-print-file-name=", "aj"},
1105 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1106 {"--print-missing-file-dependencies", "-MG", 0},
1107 {"--print-multi-lib", "-print-multi-lib", 0},
1108 {"--print-multi-directory", "-print-multi-directory", 0},
1109 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1110 {"--print-prog-name", "-print-prog-name=", "aj"},
1111 {"--profile", "-p", 0},
1112 {"--profile-blocks", "-a", 0},
1113 {"--quiet", "-q", 0},
1114 {"--resource", "-fcompile-resource=", "aj"},
1115 {"--save-temps", "-save-temps", 0},
1116 {"--shared", "-shared", 0},
1117 {"--silent", "-q", 0},
1118 {"--specs", "-specs=", "aj"},
1119 {"--static", "-static", 0},
1120 {"--std", "-std=", "aj"},
1121 {"--symbolic", "-symbolic", 0},
1122 {"--time", "-time", 0},
1123 {"--trace-includes", "-H", 0},
1124 {"--traditional", "-traditional", 0},
1125 {"--traditional-cpp", "-traditional-cpp", 0},
1126 {"--trigraphs", "-trigraphs", 0},
1127 {"--undefine-macro", "-U", "aj"},
1128 {"--user-dependencies", "-MM", 0},
1129 {"--verbose", "-v", 0},
1130 {"--warn-", "-W", "*j"},
1131 {"--write-dependencies", "-MD", 0},
1132 {"--write-user-dependencies", "-MMD", 0},
1137 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1138 static const struct {
1139 const char *const option_found
;
1140 const char *const replacements
;
1141 } target_option_translations
[] =
1143 TARGET_OPTION_TRANSLATE_TABLE
,
1148 /* Translate the options described by *ARGCP and *ARGVP.
1149 Make a new vector and store it back in *ARGVP,
1150 and store its length in *ARGVC. */
1153 translate_options (int *argcp
, const char *const **argvp
)
1157 const char *const *argv
= *argvp
;
1158 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1159 const char **newv
= xmalloc (newvsize
);
1163 newv
[newindex
++] = argv
[i
++];
1167 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1171 target_option_translations
[tott_idx
].option_found
;
1174 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1181 for (sp
= target_option_translations
[tott_idx
].replacements
;
1188 newvsize
+= spaces
* sizeof (const char *);
1189 newv
= xrealloc (newv
, newvsize
);
1191 sp
= target_option_translations
[tott_idx
].replacements
;
1200 newv
[newindex
++] = np
;
1201 while (*np
!= ' ' && *np
)
1212 if (target_option_translations
[tott_idx
].option_found
)
1216 /* Translate -- options. */
1217 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1220 /* Find a mapping that applies to this option. */
1221 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1223 size_t optlen
= strlen (option_map
[j
].name
);
1224 size_t arglen
= strlen (argv
[i
]);
1225 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1226 const char *arginfo
= option_map
[j
].arg_info
;
1231 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1233 const char *arg
= 0;
1235 if (arglen
< optlen
)
1238 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1239 if (strlen (option_map
[k
].name
) >= arglen
1240 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1242 error ("ambiguous abbreviation %s", argv
[i
]);
1246 if (k
!= ARRAY_SIZE (option_map
))
1250 if (arglen
> optlen
)
1252 /* If the option has an argument, accept that. */
1253 if (argv
[i
][optlen
] == '=')
1254 arg
= argv
[i
] + optlen
+ 1;
1256 /* If this mapping requires extra text at end of name,
1257 accept that as "argument". */
1258 else if (strchr (arginfo
, '*') != 0)
1259 arg
= argv
[i
] + optlen
;
1261 /* Otherwise, extra text at end means mismatch.
1262 Try other mappings. */
1267 else if (strchr (arginfo
, '*') != 0)
1269 error ("incomplete '%s' option", option_map
[j
].name
);
1273 /* Handle arguments. */
1274 if (strchr (arginfo
, 'a') != 0)
1280 error ("missing argument to '%s' option",
1281 option_map
[j
].name
);
1288 else if (strchr (arginfo
, '*') != 0)
1290 else if (strchr (arginfo
, 'o') == 0)
1293 error ("extraneous argument to '%s' option",
1294 option_map
[j
].name
);
1298 /* Store the translation as one argv elt or as two. */
1299 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1300 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1304 newv
[newindex
++] = option_map
[j
].equivalent
;
1305 newv
[newindex
++] = arg
;
1308 newv
[newindex
++] = option_map
[j
].equivalent
;
1316 /* Handle old-fashioned options--just copy them through,
1317 with their arguments. */
1318 else if (argv
[i
][0] == '-')
1320 const char *p
= argv
[i
] + 1;
1324 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1325 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1326 else if (WORD_SWITCH_TAKES_ARG (p
))
1327 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1328 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1331 else if (! strcmp (p
, "Xlinker"))
1333 else if (! strcmp (p
, "Xpreprocessor"))
1335 else if (! strcmp (p
, "Xassembler"))
1338 /* Watch out for an option at the end of the command line that
1339 is missing arguments, and avoid skipping past the end of the
1341 if (nskip
+ i
> argc
)
1346 newv
[newindex
++] = argv
[i
++];
1351 /* Ordinary operands, or +e options. */
1352 newv
[newindex
++] = argv
[i
++];
1362 skip_whitespace (char *p
)
1366 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1367 be considered whitespace. */
1368 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1370 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1384 /* Structures to keep track of prefixes to try when looking for files. */
1388 const char *prefix
; /* String to prepend to the path. */
1389 struct prefix_list
*next
; /* Next in linked list. */
1390 int require_machine_suffix
; /* Don't use without machine_suffix. */
1391 /* 2 means try both machine_suffix and just_machine_suffix. */
1392 int priority
; /* Sort key - priority within list. */
1393 int os_multilib
; /* 1 if OS multilib scheme should be used,
1394 0 for GCC multilib scheme. */
1399 struct prefix_list
*plist
; /* List of prefixes to try */
1400 int max_len
; /* Max length of a prefix in PLIST */
1401 const char *name
; /* Name of this list (used in config stuff) */
1404 /* List of prefixes to try when looking for executables. */
1406 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1408 /* List of prefixes to try when looking for startup (crt0) files. */
1410 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1412 /* List of prefixes to try when looking for include files. */
1414 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1416 /* Suffix to attach to directories searched for commands.
1417 This looks like `MACHINE/VERSION/'. */
1419 static const char *machine_suffix
= 0;
1421 /* Suffix to attach to directories searched for commands.
1422 This is just `MACHINE/'. */
1424 static const char *just_machine_suffix
= 0;
1426 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1428 static const char *gcc_exec_prefix
;
1430 /* Adjusted value of standard_libexec_prefix. */
1432 static const char *gcc_libexec_prefix
;
1434 /* Default prefixes to attach to command names. */
1436 #ifndef STANDARD_STARTFILE_PREFIX_1
1437 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1439 #ifndef STANDARD_STARTFILE_PREFIX_2
1440 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1443 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1444 #undef MD_EXEC_PREFIX
1445 #undef MD_STARTFILE_PREFIX
1446 #undef MD_STARTFILE_PREFIX_1
1449 /* If no prefixes defined, use the null string, which will disable them. */
1450 #ifndef MD_EXEC_PREFIX
1451 #define MD_EXEC_PREFIX ""
1453 #ifndef MD_STARTFILE_PREFIX
1454 #define MD_STARTFILE_PREFIX ""
1456 #ifndef MD_STARTFILE_PREFIX_1
1457 #define MD_STARTFILE_PREFIX_1 ""
1460 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1461 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1462 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1463 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1465 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1466 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1467 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1468 static const char *const standard_startfile_prefix_1
1469 = STANDARD_STARTFILE_PREFIX_1
;
1470 static const char *const standard_startfile_prefix_2
1471 = STANDARD_STARTFILE_PREFIX_2
;
1473 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1474 static const char *tooldir_prefix
;
1476 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1478 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1480 /* Subdirectory to use for locating libraries. Set by
1481 set_multilib_dir based on the compilation options. */
1483 static const char *multilib_dir
;
1485 /* Subdirectory to use for locating libraries in OS conventions. Set by
1486 set_multilib_dir based on the compilation options. */
1488 static const char *multilib_os_dir
;
1490 /* Structure to keep track of the specs that have been defined so far.
1491 These are accessed using %(specname) or %[specname] in a compiler
1496 /* The following 2 fields must be first */
1497 /* to allow EXTRA_SPECS to be initialized */
1498 const char *name
; /* name of the spec. */
1499 const char *ptr
; /* available ptr if no static pointer */
1501 /* The following fields are not initialized */
1502 /* by EXTRA_SPECS */
1503 const char **ptr_spec
; /* pointer to the spec itself. */
1504 struct spec_list
*next
; /* Next spec in linked list. */
1505 int name_len
; /* length of the name */
1506 int alloc_p
; /* whether string was allocated */
1509 #define INIT_STATIC_SPEC(NAME,PTR) \
1510 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1512 /* List of statically defined specs. */
1513 static struct spec_list static_specs
[] =
1515 INIT_STATIC_SPEC ("asm", &asm_spec
),
1516 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1517 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1518 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1519 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1520 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1521 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1522 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1523 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1524 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1525 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1526 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1527 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1528 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1529 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1530 INIT_STATIC_SPEC ("link", &link_spec
),
1531 INIT_STATIC_SPEC ("lib", &lib_spec
),
1532 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1533 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1534 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1535 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1536 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1537 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1538 INIT_STATIC_SPEC ("version", &compiler_version
),
1539 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1540 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1541 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1542 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1543 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1544 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1545 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1546 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1547 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1548 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1549 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1550 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1551 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1552 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1555 #ifdef EXTRA_SPECS /* additional specs needed */
1556 /* Structure to keep track of just the first two args of a spec_list.
1557 That is all that the EXTRA_SPECS macro gives us. */
1560 const char *const name
;
1561 const char *const ptr
;
1564 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1565 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1568 /* List of dynamically allocates specs that have been defined so far. */
1570 static struct spec_list
*specs
= (struct spec_list
*) 0;
1572 /* List of static spec functions. */
1574 static const struct spec_function static_spec_functions
[] =
1576 { "if-exists", if_exists_spec_function
},
1577 { "if-exists-else", if_exists_else_spec_function
},
1578 { "replace-outfile", replace_outfile_spec_function
},
1582 static int processing_spec_function
;
1584 /* Add appropriate libgcc specs to OBSTACK, taking into account
1585 various permutations of -shared-libgcc, -shared, and such. */
1587 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1589 #ifndef USE_LD_AS_NEEDED
1590 #define USE_LD_AS_NEEDED 0
1594 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1595 const char *static_name
, const char *eh_name
)
1599 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1600 "}%{!static:%{!static-libgcc:",
1601 #if USE_LD_AS_NEEDED
1602 "%{!shared-libgcc:", static_name
,
1603 " --as-needed ", shared_name
, " --no-as-needed}"
1604 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1607 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1608 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1609 static_name
, "}}%{shared:",
1611 "%{shared-libgcc:", shared_name
,
1612 "}%{!shared-libgcc:", static_name
, "}",
1619 obstack_grow (obstack
, buf
, strlen (buf
));
1622 #endif /* ENABLE_SHARED_LIBGCC */
1624 /* Initialize the specs lookup routines. */
1629 struct spec_list
*next
= (struct spec_list
*) 0;
1630 struct spec_list
*sl
= (struct spec_list
*) 0;
1634 return; /* Already initialized. */
1637 notice ("Using built-in specs.\n");
1640 extra_specs
= xcalloc (sizeof (struct spec_list
),
1641 ARRAY_SIZE (extra_specs_1
));
1643 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1645 sl
= &extra_specs
[i
];
1646 sl
->name
= extra_specs_1
[i
].name
;
1647 sl
->ptr
= extra_specs_1
[i
].ptr
;
1649 sl
->name_len
= strlen (sl
->name
);
1650 sl
->ptr_spec
= &sl
->ptr
;
1655 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1656 on ?: in file-scope variable initializations. */
1657 asm_debug
= ASM_DEBUG_SPEC
;
1659 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1661 sl
= &static_specs
[i
];
1666 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1667 /* ??? If neither -shared-libgcc nor --static-libgcc was
1668 seen, then we should be making an educated guess. Some proposed
1669 heuristics for ELF include:
1671 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1672 program will be doing dynamic loading, which will likely
1673 need the shared libgcc.
1675 (2) If "-ldl", then it's also a fair bet that we're doing
1678 (3) For each ET_DYN we're linking against (either through -lfoo
1679 or /some/path/foo.so), check to see whether it or one of
1680 its dependencies depends on a shared libgcc.
1684 If the runtime is fixed to look for program headers instead
1685 of calling __register_frame_info at all, for each object,
1686 use the shared libgcc if any EH symbol referenced.
1688 If crtstuff is fixed to not invoke __register_frame_info
1689 automatically, for each object, use the shared libgcc if
1690 any non-empty unwind section found.
1692 Doing any of this probably requires invoking an external program to
1693 do the actual object file scanning. */
1695 const char *p
= libgcc_spec
;
1698 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1699 when given the proper command line arguments. */
1702 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1704 init_gcc_specs (&obstack
,
1706 #ifdef USE_LIBUNWIND_EXCEPTIONS
1712 #ifdef USE_LIBUNWIND_EXCEPTIONS
1713 # ifdef HAVE_LD_STATIC_DYNAMIC
1714 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1724 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1726 /* Ug. We don't know shared library extensions. Hope that
1727 systems that use this form don't do shared libraries. */
1728 init_gcc_specs (&obstack
,
1732 #ifdef USE_LIBUNWIND_EXCEPTIONS
1741 obstack_1grow (&obstack
, *p
);
1742 in_sep
= (*p
== ' ');
1747 obstack_1grow (&obstack
, '\0');
1748 libgcc_spec
= obstack_finish (&obstack
);
1751 #ifdef USE_AS_TRADITIONAL_FORMAT
1752 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1754 static const char tf
[] = "--traditional-format ";
1755 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1756 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1757 asm_spec
= obstack_finish (&obstack
);
1761 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1762 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1763 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1764 link_spec
= obstack_finish (&obstack
);
1770 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1771 removed; If the spec starts with a + then SPEC is added to the end of the
1775 set_spec (const char *name
, const char *spec
)
1777 struct spec_list
*sl
;
1778 const char *old_spec
;
1779 int name_len
= strlen (name
);
1782 /* If this is the first call, initialize the statically allocated specs. */
1785 struct spec_list
*next
= (struct spec_list
*) 0;
1786 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1788 sl
= &static_specs
[i
];
1795 /* See if the spec already exists. */
1796 for (sl
= specs
; sl
; sl
= sl
->next
)
1797 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1802 /* Not found - make it. */
1803 sl
= xmalloc (sizeof (struct spec_list
));
1804 sl
->name
= xstrdup (name
);
1805 sl
->name_len
= name_len
;
1806 sl
->ptr_spec
= &sl
->ptr
;
1808 *(sl
->ptr_spec
) = "";
1813 old_spec
= *(sl
->ptr_spec
);
1814 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1815 ? concat (old_spec
, spec
+ 1, NULL
)
1820 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1823 /* Free the old spec. */
1824 if (old_spec
&& sl
->alloc_p
)
1825 free ((void *) old_spec
);
1830 /* Accumulate a command (program name and args), and run it. */
1832 /* Vector of pointers to arguments in the current line of specifications. */
1834 static const char **argbuf
;
1836 /* Number of elements allocated in argbuf. */
1838 static int argbuf_length
;
1840 /* Number of elements in argbuf currently in use (containing args). */
1842 static int argbuf_index
;
1844 /* Position in the argbuf array containing the name of the output file
1845 (the value associated with the "-o" flag). */
1847 static int have_o_argbuf_index
= 0;
1849 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1850 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1853 static struct temp_name
{
1854 const char *suffix
; /* suffix associated with the code. */
1855 int length
; /* strlen (suffix). */
1856 int unique
; /* Indicates whether %g or %u/%U was used. */
1857 const char *filename
; /* associated filename. */
1858 int filename_length
; /* strlen (filename). */
1859 struct temp_name
*next
;
1862 /* Number of commands executed so far. */
1864 static int execution_count
;
1866 /* Number of commands that exited with a signal. */
1868 static int signal_count
;
1870 /* Name with which this program was invoked. */
1872 static const char *programname
;
1874 /* Allocate the argument vector. */
1880 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1883 /* Clear out the vector of arguments (after a command is executed). */
1891 /* Add one argument to the vector at the end.
1892 This is done when a space is seen or at the end of the line.
1893 If DELETE_ALWAYS is nonzero, the arg is a filename
1894 and the file should be deleted eventually.
1895 If DELETE_FAILURE is nonzero, the arg is a filename
1896 and the file should be deleted if this compilation fails. */
1899 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1901 if (argbuf_index
+ 1 == argbuf_length
)
1902 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1904 argbuf
[argbuf_index
++] = arg
;
1905 argbuf
[argbuf_index
] = 0;
1907 if (strcmp (arg
, "-o") == 0)
1908 have_o_argbuf_index
= argbuf_index
;
1909 if (delete_always
|| delete_failure
)
1910 record_temp_file (arg
, delete_always
, delete_failure
);
1913 /* Load specs from a file name named FILENAME, replacing occurrences of
1914 various different types of line-endings, \r\n, \n\r and just \r, with
1918 load_specs (const char *filename
)
1922 struct stat statbuf
;
1929 notice ("Reading specs from %s\n", filename
);
1931 /* Open and stat the file. */
1932 desc
= open (filename
, O_RDONLY
, 0);
1934 pfatal_with_name (filename
);
1935 if (stat (filename
, &statbuf
) < 0)
1936 pfatal_with_name (filename
);
1938 /* Read contents of file into BUFFER. */
1939 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1940 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1942 pfatal_with_name (filename
);
1943 buffer
[readlen
] = 0;
1946 specs
= xmalloc (readlen
+ 1);
1948 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1954 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1956 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1970 /* Read compilation specs from a file named FILENAME,
1971 replacing the default ones.
1973 A suffix which starts with `*' is a definition for
1974 one of the machine-specific sub-specs. The "suffix" should be
1975 *asm, *cc1, *cpp, *link, *startfile, etc.
1976 The corresponding spec is stored in asm_spec, etc.,
1977 rather than in the `compilers' vector.
1979 Anything invalid in the file is a fatal error. */
1982 read_specs (const char *filename
, int main_p
)
1987 buffer
= load_specs (filename
);
1989 /* Scan BUFFER for specs, putting them in the vector. */
1995 char *in
, *out
, *p1
, *p2
, *p3
;
1997 /* Advance P in BUFFER to the next nonblank nocomment line. */
1998 p
= skip_whitespace (p
);
2002 /* Is this a special command that starts with '%'? */
2003 /* Don't allow this for the main specs file, since it would
2004 encourage people to overwrite it. */
2005 if (*p
== '%' && !main_p
)
2008 while (*p
&& *p
!= '\n')
2014 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2015 && (p1
[sizeof "%include" - 1] == ' '
2016 || p1
[sizeof "%include" - 1] == '\t'))
2020 p1
+= sizeof ("%include");
2021 while (*p1
== ' ' || *p1
== '\t')
2024 if (*p1
++ != '<' || p
[-2] != '>')
2025 fatal ("specs %%include syntax malformed after %ld characters",
2026 (long) (p1
- buffer
+ 1));
2029 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2030 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2033 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2034 && (p1
[sizeof "%include_noerr" - 1] == ' '
2035 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2039 p1
+= sizeof "%include_noerr";
2040 while (*p1
== ' ' || *p1
== '\t')
2043 if (*p1
++ != '<' || p
[-2] != '>')
2044 fatal ("specs %%include syntax malformed after %ld characters",
2045 (long) (p1
- buffer
+ 1));
2048 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2050 read_specs (new_filename
, FALSE
);
2051 else if (verbose_flag
)
2052 notice ("could not find specs file %s\n", p1
);
2055 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2056 && (p1
[sizeof "%rename" - 1] == ' '
2057 || p1
[sizeof "%rename" - 1] == '\t'))
2060 struct spec_list
*sl
;
2061 struct spec_list
*newsl
;
2063 /* Get original name. */
2064 p1
+= sizeof "%rename";
2065 while (*p1
== ' ' || *p1
== '\t')
2068 if (! ISALPHA ((unsigned char) *p1
))
2069 fatal ("specs %%rename syntax malformed after %ld characters",
2070 (long) (p1
- buffer
));
2073 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2076 if (*p2
!= ' ' && *p2
!= '\t')
2077 fatal ("specs %%rename syntax malformed after %ld characters",
2078 (long) (p2
- buffer
));
2082 while (*p2
== ' ' || *p2
== '\t')
2085 if (! ISALPHA ((unsigned char) *p2
))
2086 fatal ("specs %%rename syntax malformed after %ld characters",
2087 (long) (p2
- buffer
));
2089 /* Get new spec name. */
2091 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2095 fatal ("specs %%rename syntax malformed after %ld characters",
2096 (long) (p3
- buffer
));
2099 for (sl
= specs
; sl
; sl
= sl
->next
)
2100 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2104 fatal ("specs %s spec was not found to be renamed", p1
);
2106 if (strcmp (p1
, p2
) == 0)
2109 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2110 if (strcmp (newsl
->name
, p2
) == 0)
2111 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2116 notice ("rename spec %s to %s\n", p1
, p2
);
2118 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2122 set_spec (p2
, *(sl
->ptr_spec
));
2124 free ((void *) *(sl
->ptr_spec
));
2126 *(sl
->ptr_spec
) = "";
2131 fatal ("specs unknown %% command after %ld characters",
2132 (long) (p1
- buffer
));
2135 /* Find the colon that should end the suffix. */
2137 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2140 /* The colon shouldn't be missing. */
2142 fatal ("specs file malformed after %ld characters",
2143 (long) (p1
- buffer
));
2145 /* Skip back over trailing whitespace. */
2147 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2150 /* Copy the suffix to a string. */
2151 suffix
= save_string (p
, p2
- p
);
2152 /* Find the next line. */
2153 p
= skip_whitespace (p1
+ 1);
2155 fatal ("specs file malformed after %ld characters",
2156 (long) (p
- buffer
));
2159 /* Find next blank line or end of string. */
2160 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2163 /* Specs end at the blank line and do not include the newline. */
2164 spec
= save_string (p
, p1
- p
);
2167 /* Delete backslash-newline sequences from the spec. */
2172 if (in
[0] == '\\' && in
[1] == '\n')
2174 else if (in
[0] == '#')
2175 while (*in
&& *in
!= '\n')
2183 if (suffix
[0] == '*')
2185 if (! strcmp (suffix
, "*link_command"))
2186 link_command_spec
= spec
;
2188 set_spec (suffix
+ 1, spec
);
2192 /* Add this pair to the vector. */
2194 = xrealloc (compilers
,
2195 (n_compilers
+ 2) * sizeof (struct compiler
));
2197 compilers
[n_compilers
].suffix
= suffix
;
2198 compilers
[n_compilers
].spec
= spec
;
2200 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2204 link_command_spec
= spec
;
2207 if (link_command_spec
== 0)
2208 fatal ("spec file has no spec for linking");
2211 /* Record the names of temporary files we tell compilers to write,
2212 and delete them at the end of the run. */
2214 /* This is the common prefix we use to make temp file names.
2215 It is chosen once for each run of this program.
2216 It is substituted into a spec by %g or %j.
2217 Thus, all temp file names contain this prefix.
2218 In practice, all temp file names start with this prefix.
2220 This prefix comes from the envvar TMPDIR if it is defined;
2221 otherwise, from the P_tmpdir macro if that is defined;
2222 otherwise, in /usr/tmp or /tmp;
2223 or finally the current directory if all else fails. */
2225 static const char *temp_filename
;
2227 /* Length of the prefix. */
2229 static int temp_filename_length
;
2231 /* Define the list of temporary files to delete. */
2236 struct temp_file
*next
;
2239 /* Queue of files to delete on success or failure of compilation. */
2240 static struct temp_file
*always_delete_queue
;
2241 /* Queue of files to delete on failure of compilation. */
2242 static struct temp_file
*failure_delete_queue
;
2244 /* Record FILENAME as a file to be deleted automatically.
2245 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2246 otherwise delete it in any case.
2247 FAIL_DELETE nonzero means delete it if a compilation step fails;
2248 otherwise delete it in any case. */
2251 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2253 char *const name
= xstrdup (filename
);
2257 struct temp_file
*temp
;
2258 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2259 if (! strcmp (name
, temp
->name
))
2262 temp
= xmalloc (sizeof (struct temp_file
));
2263 temp
->next
= always_delete_queue
;
2265 always_delete_queue
= temp
;
2272 struct temp_file
*temp
;
2273 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2274 if (! strcmp (name
, temp
->name
))
2277 temp
= xmalloc (sizeof (struct temp_file
));
2278 temp
->next
= failure_delete_queue
;
2280 failure_delete_queue
= temp
;
2286 /* Delete all the temporary files whose names we previously recorded. */
2288 #ifndef DELETE_IF_ORDINARY
2289 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2292 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2293 if (unlink (NAME) < 0) \
2295 perror_with_name (NAME); \
2300 delete_if_ordinary (const char *name
)
2306 printf ("Delete %s? (y or n) ", name
);
2310 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2313 if (i
== 'y' || i
== 'Y')
2315 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2319 delete_temp_files (void)
2321 struct temp_file
*temp
;
2323 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2324 delete_if_ordinary (temp
->name
);
2325 always_delete_queue
= 0;
2328 /* Delete all the files to be deleted on error. */
2331 delete_failure_queue (void)
2333 struct temp_file
*temp
;
2335 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2336 delete_if_ordinary (temp
->name
);
2340 clear_failure_queue (void)
2342 failure_delete_queue
= 0;
2345 /* Build a list of search directories from PATHS.
2346 PREFIX is a string to prepend to the list.
2347 If CHECK_DIR_P is nonzero we ensure the directory exists.
2348 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2349 It is also used by the --print-search-dirs flag. */
2352 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2355 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2357 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2358 int first_time
= TRUE
;
2359 struct prefix_list
*pprefix
;
2361 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2362 obstack_1grow (&collect_obstack
, '=');
2364 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2366 int len
= strlen (pprefix
->prefix
);
2370 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2373 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2376 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2377 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2380 if (just_machine_suffix
2381 && pprefix
->require_machine_suffix
== 2
2383 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2386 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2389 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2390 obstack_grow (&collect_obstack
, just_machine_suffix
,
2394 if (! pprefix
->require_machine_suffix
)
2397 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2400 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2404 obstack_1grow (&collect_obstack
, '\0');
2405 return obstack_finish (&collect_obstack
);
2408 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2412 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2414 putenv (build_search_list (paths
, env_var
, 1));
2417 /* Check whether NAME can be accessed in MODE. This is like access,
2418 except that it never considers directories to be executable. */
2421 access_check (const char *name
, int mode
)
2427 if (stat (name
, &st
) < 0
2428 || S_ISDIR (st
.st_mode
))
2432 return access (name
, mode
);
2435 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2436 access to check permissions.
2437 Return 0 if not found, otherwise return its name, allocated with malloc. */
2440 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2444 const char *const file_suffix
=
2445 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2446 struct prefix_list
*pl
;
2447 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2448 const char *multilib_name
, *multilib_os_name
;
2450 #ifdef DEFAULT_ASSEMBLER
2451 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2452 return xstrdup (DEFAULT_ASSEMBLER
);
2455 #ifdef DEFAULT_LINKER
2456 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2457 return xstrdup (DEFAULT_LINKER
);
2461 len
+= strlen (machine_suffix
);
2463 multilib_name
= name
;
2464 multilib_os_name
= name
;
2465 if (multilib
&& multilib_os_dir
)
2467 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2468 int len2
= strlen (multilib_os_dir
) + 1;
2470 len
+= len1
> len2
? len1
: len2
;
2472 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2474 if (strcmp (multilib_os_dir
, ".") != 0)
2475 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2479 temp
= xmalloc (len
);
2481 /* Determine the filename to execute (special case for absolute paths). */
2483 if (IS_ABSOLUTE_PATH (name
))
2485 if (access (name
, mode
) == 0)
2487 strcpy (temp
, name
);
2492 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2494 const char *this_name
2495 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2499 /* Some systems have a suffix for executable files.
2500 So try appending that first. */
2501 if (file_suffix
[0] != 0)
2503 strcpy (temp
, pl
->prefix
);
2504 strcat (temp
, machine_suffix
);
2505 strcat (temp
, multilib_name
);
2506 strcat (temp
, file_suffix
);
2507 if (access_check (temp
, mode
) == 0)
2511 /* Now try just the multilib_name. */
2512 strcpy (temp
, pl
->prefix
);
2513 strcat (temp
, machine_suffix
);
2514 strcat (temp
, multilib_name
);
2515 if (access_check (temp
, mode
) == 0)
2519 /* Certain prefixes are tried with just the machine type,
2520 not the version. This is used for finding as, ld, etc. */
2521 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2523 /* Some systems have a suffix for executable files.
2524 So try appending that first. */
2525 if (file_suffix
[0] != 0)
2527 strcpy (temp
, pl
->prefix
);
2528 strcat (temp
, just_machine_suffix
);
2529 strcat (temp
, multilib_name
);
2530 strcat (temp
, file_suffix
);
2531 if (access_check (temp
, mode
) == 0)
2535 strcpy (temp
, pl
->prefix
);
2536 strcat (temp
, just_machine_suffix
);
2537 strcat (temp
, multilib_name
);
2538 if (access_check (temp
, mode
) == 0)
2542 /* Certain prefixes can't be used without the machine suffix
2543 when the machine or version is explicitly specified. */
2544 if (! pl
->require_machine_suffix
)
2546 /* Some systems have a suffix for executable files.
2547 So try appending that first. */
2548 if (file_suffix
[0] != 0)
2550 strcpy (temp
, pl
->prefix
);
2551 strcat (temp
, this_name
);
2552 strcat (temp
, file_suffix
);
2553 if (access_check (temp
, mode
) == 0)
2557 strcpy (temp
, pl
->prefix
);
2558 strcat (temp
, this_name
);
2559 if (access_check (temp
, mode
) == 0)
2568 /* Ranking of prefixes in the sort list. -B prefixes are put before
2571 enum path_prefix_priority
2573 PREFIX_PRIORITY_B_OPT
,
2574 PREFIX_PRIORITY_LAST
2577 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2578 order according to PRIORITY. Within each PRIORITY, new entries are
2581 If WARN is nonzero, we will warn if no file is found
2582 through this prefix. WARN should point to an int
2583 which will be set to 1 if this entry is used.
2585 COMPONENT is the value to be passed to update_path.
2587 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2588 the complete value of machine_suffix.
2589 2 means try both machine_suffix and just_machine_suffix. */
2592 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2593 const char *component
, /* enum prefix_priority */ int priority
,
2594 int require_machine_suffix
, int os_multilib
)
2596 struct prefix_list
*pl
, **prev
;
2599 for (prev
= &pprefix
->plist
;
2600 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2601 prev
= &(*prev
)->next
)
2604 /* Keep track of the longest prefix. */
2606 prefix
= update_path (prefix
, component
);
2607 len
= strlen (prefix
);
2608 if (len
> pprefix
->max_len
)
2609 pprefix
->max_len
= len
;
2611 pl
= xmalloc (sizeof (struct prefix_list
));
2612 pl
->prefix
= prefix
;
2613 pl
->require_machine_suffix
= require_machine_suffix
;
2614 pl
->priority
= priority
;
2615 pl
->os_multilib
= os_multilib
;
2617 /* Insert after PREV. */
2622 /* Same as add_prefix, but prepending target_system_root to prefix. */
2624 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2625 const char *component
,
2626 /* enum prefix_priority */ int priority
,
2627 int require_machine_suffix
, int os_multilib
)
2629 if (!IS_ABSOLUTE_PATH (prefix
))
2630 fatal ("system path '%s' is not absolute", prefix
);
2632 if (target_system_root
)
2634 if (target_sysroot_suffix
)
2635 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2636 prefix
= concat (target_system_root
, prefix
, NULL
);
2638 /* We have to override this because GCC's notion of sysroot
2639 moves along with GCC. */
2643 add_prefix (pprefix
, prefix
, component
, priority
,
2644 require_machine_suffix
, os_multilib
);
2647 /* Execute the command specified by the arguments on the current line of spec.
2648 When using pipes, this includes several piped-together commands
2649 with `|' between them.
2651 Return 0 if successful, -1 if failed. */
2657 int n_commands
; /* # of command. */
2661 const char *prog
; /* program name. */
2662 const char **argv
; /* vector of args. */
2663 int pid
; /* pid of process for this command. */
2666 struct command
*commands
; /* each command buffer with above info. */
2668 gcc_assert (!processing_spec_function
);
2670 /* Count # of piped commands. */
2671 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2672 if (strcmp (argbuf
[i
], "|") == 0)
2675 /* Get storage for each command. */
2676 commands
= alloca (n_commands
* sizeof (struct command
));
2678 /* Split argbuf into its separate piped processes,
2679 and record info about each one.
2680 Also search for the programs that are to be run. */
2682 commands
[0].prog
= argbuf
[0]; /* first command. */
2683 commands
[0].argv
= &argbuf
[0];
2684 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2687 commands
[0].argv
[0] = string
;
2689 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2690 if (strcmp (argbuf
[i
], "|") == 0)
2691 { /* each command. */
2692 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2693 fatal ("-pipe not supported");
2695 argbuf
[i
] = 0; /* termination of command args. */
2696 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2697 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2698 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2701 commands
[n_commands
].argv
[0] = string
;
2705 argbuf
[argbuf_index
] = 0;
2707 /* If -v, print what we are about to do, and maybe query. */
2711 /* For help listings, put a blank line between sub-processes. */
2712 if (print_help_list
)
2713 fputc ('\n', stderr
);
2715 /* Print each piped command as a separate line. */
2716 for (i
= 0; i
< n_commands
; i
++)
2718 const char *const *j
;
2720 if (verbose_only_flag
)
2722 for (j
= commands
[i
].argv
; *j
; j
++)
2725 fprintf (stderr
, " \"");
2726 for (p
= *j
; *p
; ++p
)
2728 if (*p
== '"' || *p
== '\\' || *p
== '$')
2729 fputc ('\\', stderr
);
2732 fputc ('"', stderr
);
2736 for (j
= commands
[i
].argv
; *j
; j
++)
2737 fprintf (stderr
, " %s", *j
);
2739 /* Print a pipe symbol after all but the last command. */
2740 if (i
+ 1 != n_commands
)
2741 fprintf (stderr
, " |");
2742 fprintf (stderr
, "\n");
2745 if (verbose_only_flag
!= 0)
2747 /* verbose_only_flag should act as if the spec was
2748 executed, so increment execution_count before
2749 returning. This prevents spurious warnings about
2750 unused linker input files, etc. */
2755 notice ("\nGo ahead? (y or n) ");
2759 while (getchar () != '\n')
2762 if (i
!= 'y' && i
!= 'Y')
2767 #ifdef ENABLE_VALGRIND_CHECKING
2768 /* Run the each command through valgrind. To simplify prepending the
2769 path to valgrind and the option "-q" (for quiet operation unless
2770 something triggers), we allocate a separate argv array. */
2772 for (i
= 0; i
< n_commands
; i
++)
2778 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2781 argv
= alloca ((argc
+ 3) * sizeof (char *));
2783 argv
[0] = VALGRIND_PATH
;
2785 for (j
= 2; j
< argc
+ 2; j
++)
2786 argv
[j
] = commands
[i
].argv
[j
- 2];
2789 commands
[i
].argv
= argv
;
2790 commands
[i
].prog
= argv
[0];
2794 /* Run each piped subprocess. */
2796 for (i
= 0; i
< n_commands
; i
++)
2798 char *errmsg_fmt
, *errmsg_arg
;
2799 const char *string
= commands
[i
].argv
[0];
2801 /* For some bizarre reason, the second argument of execvp() is
2802 char *const *, not const char *const *. */
2803 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2804 programname
, temp_filename
,
2805 &errmsg_fmt
, &errmsg_arg
,
2806 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2807 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2808 | (string
== commands
[i
].prog
2809 ? PEXECUTE_SEARCH
: 0)
2810 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2812 if (commands
[i
].pid
== -1)
2813 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2815 if (string
!= commands
[i
].prog
)
2816 free ((void *) string
);
2821 /* Wait for all the subprocesses to finish.
2822 We don't care what order they finish in;
2823 we know that N_COMMANDS waits will get them all.
2824 Ignore subprocesses that we don't know about,
2825 since they can be spawned by the process that exec'ed us. */
2829 #ifdef HAVE_GETRUSAGE
2831 double ut
= 0.0, st
= 0.0;
2834 for (i
= 0; i
< n_commands
;)
2840 pid
= pwait (commands
[i
].pid
, &status
, 0);
2841 gcc_assert (pid
>= 0);
2843 #ifdef HAVE_GETRUSAGE
2846 /* getrusage returns the total resource usage of all children
2847 up to now. Copy the previous values into prus, get the
2848 current statistics, then take the difference. */
2851 getrusage (RUSAGE_CHILDREN
, &rus
);
2852 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2853 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2854 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2856 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2857 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2858 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2862 for (j
= 0; j
< n_commands
; j
++)
2863 if (commands
[j
].pid
== pid
)
2866 if (WIFSIGNALED (status
))
2869 /* SIGPIPE is a special case. It happens in -pipe mode
2870 when the compiler dies before the preprocessor is
2871 done, or the assembler dies before the compiler is
2872 done. There's generally been an error already, and
2873 this is just fallout. So don't generate another error
2874 unless we would otherwise have succeeded. */
2875 if (WTERMSIG (status
) == SIGPIPE
2876 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2881 Internal error: %s (program %s)\n\
2882 Please submit a full bug report.\n\
2883 See %s for instructions.",
2884 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2889 else if (WIFEXITED (status
)
2890 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2892 if (WEXITSTATUS (status
) > greatest_status
)
2893 greatest_status
= WEXITSTATUS (status
);
2896 #ifdef HAVE_GETRUSAGE
2897 if (report_times
&& ut
+ st
!= 0)
2898 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2907 /* Find all the switches given to us
2908 and make a vector describing them.
2909 The elements of the vector are strings, one per switch given.
2910 If a switch uses following arguments, then the `part1' field
2911 is the switch itself and the `args' field
2912 is a null-terminated vector containing the following arguments.
2913 The `live_cond' field is:
2915 1 if the switch is true in a conditional spec,
2916 -1 if false (overridden by a later switch)
2917 -2 if this switch should be ignored (used in %<S)
2918 The `validated' field is nonzero if any spec has looked at this switch;
2919 if it remains zero at the end of the run, it must be meaningless. */
2922 #define SWITCH_FALSE -1
2923 #define SWITCH_IGNORE -2
2924 #define SWITCH_LIVE 1
2931 unsigned char validated
;
2932 unsigned char ordering
;
2935 static struct switchstr
*switches
;
2937 static int n_switches
;
2942 const char *language
;
2943 struct compiler
*incompiler
;
2948 /* Also a vector of input files specified. */
2950 static struct infile
*infiles
;
2954 /* True if multiple input files are being compiled to a single
2957 static bool combine_inputs
;
2959 /* This counts the number of libraries added by lang_specific_driver, so that
2960 we can tell if there were any user supplied any files or libraries. */
2962 static int added_libraries
;
2964 /* And a vector of corresponding output files is made up later. */
2966 const char **outfiles
;
2968 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2970 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2971 is true if we should look for an executable suffix. DO_OBJ
2972 is true if we should look for an object suffix. */
2975 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2976 int do_obj ATTRIBUTE_UNUSED
)
2978 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2986 len
= strlen (name
);
2988 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2989 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2990 if (do_obj
&& len
> 2
2991 && name
[len
- 2] == '.'
2992 && name
[len
- 1] == 'o')
2994 obstack_grow (&obstack
, name
, len
- 2);
2995 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2996 name
= obstack_finish (&obstack
);
3000 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3001 /* If there is no filetype, make it the executable suffix (which includes
3002 the "."). But don't get confused if we have just "-o". */
3003 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3006 for (i
= len
- 1; i
>= 0; i
--)
3007 if (IS_DIR_SEPARATOR (name
[i
]))
3010 for (i
++; i
< len
; i
++)
3014 obstack_grow (&obstack
, name
, len
);
3015 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3016 strlen (TARGET_EXECUTABLE_SUFFIX
));
3017 name
= obstack_finish (&obstack
);
3024 /* Display the command line switches accepted by gcc. */
3028 printf (_("Usage: %s [options] file...\n"), programname
);
3029 fputs (_("Options:\n"), stdout
);
3031 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3032 fputs (_(" --help Display this information\n"), stdout
);
3033 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3035 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3036 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3037 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3038 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3039 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3040 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3041 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3042 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3043 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3045 -print-multi-lib Display the mapping between command line options and\n\
3046 multiple library search directories\n"), stdout
);
3047 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3048 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3049 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3050 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3051 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3052 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3053 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3054 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3055 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3056 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3057 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3058 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3059 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3060 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3061 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3062 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3063 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3064 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3065 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3066 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3067 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3068 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3070 -x <language> Specify the language of the following input files\n\
3071 Permissible languages include: c c++ assembler none\n\
3072 'none' means revert to the default behavior of\n\
3073 guessing the language based on the file's extension\n\
3077 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3078 passed on to the various sub-processes invoked by %s. In order to pass\n\
3079 other options on to these processes the -W<letter> options must be used.\n\
3082 /* The rest of the options are displayed by invocations of the various
3087 add_preprocessor_option (const char *option
, int len
)
3089 n_preprocessor_options
++;
3091 if (! preprocessor_options
)
3092 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3094 preprocessor_options
= xrealloc (preprocessor_options
,
3095 n_preprocessor_options
* sizeof (char *));
3097 preprocessor_options
[n_preprocessor_options
- 1] =
3098 save_string (option
, len
);
3102 add_assembler_option (const char *option
, int len
)
3104 n_assembler_options
++;
3106 if (! assembler_options
)
3107 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3109 assembler_options
= xrealloc (assembler_options
,
3110 n_assembler_options
* sizeof (char *));
3112 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3116 add_linker_option (const char *option
, int len
)
3120 if (! linker_options
)
3121 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3123 linker_options
= xrealloc (linker_options
,
3124 n_linker_options
* sizeof (char *));
3126 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3129 /* Create the vector `switches' and its contents.
3130 Store its length in `n_switches'. */
3133 process_command (int argc
, const char **argv
)
3138 const char *spec_lang
= 0;
3139 int last_language_n_infiles
;
3141 int lang_n_infiles
= 0;
3142 #ifdef MODIFY_TARGET_NAME
3143 int is_modify_target_name
;
3147 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3151 added_libraries
= 0;
3153 /* Figure compiler version from version string. */
3155 compiler_version
= temp1
= xstrdup (version_string
);
3157 for (; *temp1
; ++temp1
)
3166 /* If there is a -V or -b option (or both), process it now, before
3167 trying to interpret the rest of the command line. */
3168 if (argc
> 1 && argv
[1][0] == '-'
3169 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3171 const char *new_version
= DEFAULT_TARGET_VERSION
;
3172 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3173 const char *progname
= argv
[0];
3178 while (argc
> 1 && argv
[1][0] == '-'
3179 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3181 char opt
= argv
[1][1];
3183 if (argv
[1][2] != '\0')
3196 fatal ("'-%c' option must have argument", opt
);
3203 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3204 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3206 new_argv0
= xmemdup (progname
, baselen
,
3207 baselen
+ concat_length (new_version
, new_machine
,
3208 "-gcc-", NULL
) + 1);
3209 strcpy (new_argv0
+ baselen
, new_machine
);
3210 strcat (new_argv0
, "-gcc-");
3211 strcat (new_argv0
, new_version
);
3213 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3214 (argc
+ 1) * sizeof (argv
[0]));
3215 new_argv
[0] = new_argv0
;
3217 execvp (new_argv0
, new_argv
);
3218 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3221 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3222 see if we can create it from the pathname specified in argv[0]. */
3224 gcc_libexec_prefix
= standard_libexec_prefix
;
3226 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3227 if (!gcc_exec_prefix
)
3229 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3230 standard_exec_prefix
);
3231 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3232 standard_bindir_prefix
,
3233 standard_libexec_prefix
);
3234 if (gcc_exec_prefix
)
3235 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3238 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3239 standard_exec_prefix
,
3240 standard_libexec_prefix
);
3244 if (gcc_exec_prefix
)
3246 int len
= strlen (gcc_exec_prefix
);
3248 if (len
> (int) sizeof ("/lib/gcc/") - 1
3249 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3251 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3252 if (IS_DIR_SEPARATOR (*temp
)
3253 && strncmp (temp
+ 1, "lib", 3) == 0
3254 && IS_DIR_SEPARATOR (temp
[4])
3255 && strncmp (temp
+ 5, "gcc", 3) == 0)
3256 len
-= sizeof ("/lib/gcc/") - 1;
3259 set_std_prefix (gcc_exec_prefix
, len
);
3260 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3261 PREFIX_PRIORITY_LAST
, 0, 0);
3262 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3263 PREFIX_PRIORITY_LAST
, 0, 0);
3266 /* COMPILER_PATH and LIBRARY_PATH have values
3267 that are lists of directory names with colons. */
3269 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3272 const char *startp
, *endp
;
3273 char *nstore
= alloca (strlen (temp
) + 3);
3275 startp
= endp
= temp
;
3278 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3280 strncpy (nstore
, startp
, endp
- startp
);
3282 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3283 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3285 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3286 nstore
[endp
- startp
+ 1] = 0;
3289 nstore
[endp
- startp
] = 0;
3290 add_prefix (&exec_prefixes
, nstore
, 0,
3291 PREFIX_PRIORITY_LAST
, 0, 0);
3292 add_prefix (&include_prefixes
, nstore
, 0,
3293 PREFIX_PRIORITY_LAST
, 0, 0);
3296 endp
= startp
= endp
+ 1;
3303 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3304 if (temp
&& *cross_compile
== '0')
3306 const char *startp
, *endp
;
3307 char *nstore
= alloca (strlen (temp
) + 3);
3309 startp
= endp
= temp
;
3312 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3314 strncpy (nstore
, startp
, endp
- startp
);
3316 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3317 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3319 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3320 nstore
[endp
- startp
+ 1] = 0;
3323 nstore
[endp
- startp
] = 0;
3324 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3325 PREFIX_PRIORITY_LAST
, 0, 1);
3328 endp
= startp
= endp
+ 1;
3335 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3336 GET_ENVIRONMENT (temp
, "LPATH");
3337 if (temp
&& *cross_compile
== '0')
3339 const char *startp
, *endp
;
3340 char *nstore
= alloca (strlen (temp
) + 3);
3342 startp
= endp
= temp
;
3345 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3347 strncpy (nstore
, startp
, endp
- startp
);
3349 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3350 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3352 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3353 nstore
[endp
- startp
+ 1] = 0;
3356 nstore
[endp
- startp
] = 0;
3357 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3358 PREFIX_PRIORITY_LAST
, 0, 1);
3361 endp
= startp
= endp
+ 1;
3368 /* Convert new-style -- options to old-style. */
3369 translate_options (&argc
, (const char *const **) &argv
);
3371 /* Do language-specific adjustment/addition of flags. */
3372 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3374 /* Scan argv twice. Here, the first time, just count how many switches
3375 there will be in their vector, and how many input files in theirs.
3376 Here we also parse the switches that cc itself uses (e.g. -v). */
3378 for (i
= 1; i
< argc
; i
++)
3380 if (! strcmp (argv
[i
], "-dumpspecs"))
3382 struct spec_list
*sl
;
3384 for (sl
= specs
; sl
; sl
= sl
->next
)
3385 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3386 if (link_command_spec
)
3387 printf ("*link_command:\n%s\n\n", link_command_spec
);
3390 else if (! strcmp (argv
[i
], "-dumpversion"))
3392 printf ("%s\n", spec_version
);
3395 else if (! strcmp (argv
[i
], "-dumpmachine"))
3397 printf ("%s\n", spec_machine
);
3400 else if (strcmp (argv
[i
], "-fversion") == 0)
3402 /* translate_options () has turned --version into -fversion. */
3403 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3404 printf ("Copyright %s 2005 Free Software Foundation, Inc.\n",
3406 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3407 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3411 else if (strcmp (argv
[i
], "-fhelp") == 0)
3413 /* translate_options () has turned --help into -fhelp. */
3414 print_help_list
= 1;
3416 /* We will be passing a dummy file on to the sub-processes. */
3420 /* CPP driver cannot obtain switch from cc1_options. */
3422 add_preprocessor_option ("--help", 6);
3423 add_assembler_option ("--help", 6);
3424 add_linker_option ("--help", 6);
3426 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3428 /* translate_options() has turned --target-help into -ftarget-help. */
3429 target_help_flag
= 1;
3431 /* We will be passing a dummy file on to the sub-processes. */
3435 /* CPP driver cannot obtain switch from cc1_options. */
3437 add_preprocessor_option ("--target-help", 13);
3438 add_assembler_option ("--target-help", 13);
3439 add_linker_option ("--target-help", 13);
3441 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3443 pass_exit_codes
= 1;
3446 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3447 print_search_dirs
= 1;
3448 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3449 print_file_name
= "libgcc.a";
3450 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3451 print_file_name
= argv
[i
] + 17;
3452 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3453 print_prog_name
= argv
[i
] + 17;
3454 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3455 print_multi_lib
= 1;
3456 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3457 print_multi_directory
= 1;
3458 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3459 print_multi_os_directory
= 1;
3460 else if (! strncmp (argv
[i
], "-Wa,", 4))
3463 /* Pass the rest of this option to the assembler. */
3465 /* Split the argument at commas. */
3467 for (j
= 4; argv
[i
][j
]; j
++)
3468 if (argv
[i
][j
] == ',')
3470 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3474 /* Record the part after the last comma. */
3475 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3477 else if (! strncmp (argv
[i
], "-Wp,", 4))
3480 /* Pass the rest of this option to the preprocessor. */
3482 /* Split the argument at commas. */
3484 for (j
= 4; argv
[i
][j
]; j
++)
3485 if (argv
[i
][j
] == ',')
3487 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3491 /* Record the part after the last comma. */
3492 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3494 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3495 /* The +e options to the C++ front-end. */
3497 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3500 /* Split the argument at commas. */
3501 for (j
= 3; argv
[i
][j
]; j
++)
3502 n_infiles
+= (argv
[i
][j
] == ',');
3504 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3507 fatal ("argument to '-Xlinker' is missing");
3512 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3515 fatal ("argument to '-Xpreprocessor' is missing");
3517 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3519 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3522 fatal ("argument to '-Xassembler' is missing");
3524 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3526 else if (strcmp (argv
[i
], "-l") == 0)
3529 fatal ("argument to '-l' is missing");
3534 else if (strncmp (argv
[i
], "-l", 2) == 0)
3536 else if (strcmp (argv
[i
], "-save-temps") == 0)
3538 save_temps_flag
= 1;
3541 else if (strcmp (argv
[i
], "-combine") == 0)
3546 else if (strcmp (argv
[i
], "-specs") == 0)
3548 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3550 fatal ("argument to '-specs' is missing");
3552 user
->next
= (struct user_specs
*) 0;
3553 user
->filename
= argv
[i
];
3554 if (user_specs_tail
)
3555 user_specs_tail
->next
= user
;
3557 user_specs_head
= user
;
3558 user_specs_tail
= user
;
3560 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3562 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3563 if (strlen (argv
[i
]) == 7)
3564 fatal ("argument to '-specs=' is missing");
3566 user
->next
= (struct user_specs
*) 0;
3567 user
->filename
= argv
[i
] + 7;
3568 if (user_specs_tail
)
3569 user_specs_tail
->next
= user
;
3571 user_specs_head
= user
;
3572 user_specs_tail
= user
;
3574 else if (strcmp (argv
[i
], "-time") == 0)
3576 else if (strcmp (argv
[i
], "-pipe") == 0)
3578 /* -pipe has to go into the switches array as well as
3583 else if (strcmp (argv
[i
], "-###") == 0)
3585 /* This is similar to -v except that there is no execution
3586 of the commands and the echoed arguments are quoted. It
3587 is intended for use in shell scripts to capture the
3588 driver-generated command line. */
3589 verbose_only_flag
++;
3592 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3594 const char *p
= &argv
[i
][1];
3601 fatal ("'-%c' must come at the start of the command line", c
);
3609 if (p
[1] == 0 && i
+ 1 == argc
)
3610 fatal ("argument to '-B' is missing");
3616 len
= strlen (value
);
3618 /* Catch the case where the user has forgotten to append a
3619 directory separator to the path. Note, they may be using
3620 -B to add an executable name prefix, eg "i386-elf-", in
3621 order to distinguish between multiple installations of
3622 GCC in the same directory. Hence we must check to see
3623 if appending a directory separator actually makes a
3624 valid directory name. */
3625 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3626 && is_directory (value
, "", 0))
3628 char *tmp
= xmalloc (len
+ 2);
3629 strcpy (tmp
, value
);
3630 tmp
[len
] = DIR_SEPARATOR
;
3635 /* As a kludge, if the arg is "[foo/]stageN/", just
3636 add "[foo/]include" to the include prefix. */
3639 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3640 && strncmp (value
+ len
- 7, "stage", 5) == 0
3641 && ISDIGIT (value
[len
- 2])
3642 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3645 add_prefix (&include_prefixes
, "./", NULL
,
3646 PREFIX_PRIORITY_B_OPT
, 0, 0);
3649 char *string
= xmalloc (len
- 6);
3650 memcpy (string
, value
, len
- 7);
3651 string
[len
- 7] = 0;
3652 add_prefix (&include_prefixes
, string
, NULL
,
3653 PREFIX_PRIORITY_B_OPT
, 0, 0);
3657 add_prefix (&exec_prefixes
, value
, NULL
,
3658 PREFIX_PRIORITY_B_OPT
, 0, 0);
3659 add_prefix (&startfile_prefixes
, value
, NULL
,
3660 PREFIX_PRIORITY_B_OPT
, 0, 0);
3661 add_prefix (&include_prefixes
, value
, NULL
,
3662 PREFIX_PRIORITY_B_OPT
, 0, 0);
3667 case 'v': /* Print our subcommands and print versions. */
3669 /* If they do anything other than exactly `-v', don't set
3670 verbose_flag; rather, continue on to give the error. */
3687 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3692 /* Forward scan, just in case -S or -c is specified
3699 if (argv
[j
][0] == '-')
3701 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3707 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3708 j
+= skip
- (argv
[j
][2] != 0);
3709 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3716 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3718 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3720 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3727 #ifdef MODIFY_TARGET_NAME
3728 is_modify_target_name
= 0;
3730 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3731 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3733 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3734 + strlen (spec_machine
));
3737 int made_addition
= 0;
3739 is_modify_target_name
= 1;
3740 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3742 if (modify_target
[j
].add_del
== DELETE
3743 && (! strncmp (q
, modify_target
[j
].str
,
3744 strlen (modify_target
[j
].str
))))
3745 p
+= strlen (modify_target
[j
].str
);
3746 else if (modify_target
[j
].add_del
== ADD
3747 && ! made_addition
&& *p
== '-')
3749 for (r
= modify_target
[j
].str
; *r
!= 0; )
3757 spec_machine
= new_name
;
3760 if (is_modify_target_name
)
3766 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3767 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3768 else if (WORD_SWITCH_TAKES_ARG (p
))
3769 i
+= WORD_SWITCH_TAKES_ARG (p
);
3779 if ((save_temps_flag
|| report_times
) && use_pipes
)
3781 /* -save-temps overrides -pipe, so that temp files are produced */
3782 if (save_temps_flag
)
3783 error ("warning: -pipe ignored because -save-temps specified");
3784 /* -time overrides -pipe because we can't get correct stats when
3785 multiple children are running at once. */
3786 else if (report_times
)
3787 error ("warning: -pipe ignored because -time specified");
3792 /* Set up the search paths before we go looking for config files. */
3794 /* These come before the md prefixes so that we will find gcc's subcommands
3795 (such as cpp) rather than those of the host system. */
3796 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3797 as well as trying the machine and the version. */
3799 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3800 PREFIX_PRIORITY_LAST
, 1, 0);
3801 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3802 PREFIX_PRIORITY_LAST
, 2, 0);
3803 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3804 PREFIX_PRIORITY_LAST
, 2, 0);
3805 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3806 PREFIX_PRIORITY_LAST
, 2, 0);
3807 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3808 PREFIX_PRIORITY_LAST
, 2, 0);
3811 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3812 PREFIX_PRIORITY_LAST
, 1, 0);
3813 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3814 PREFIX_PRIORITY_LAST
, 1, 0);
3816 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3817 dir_separator_str
, NULL
);
3819 /* If tooldir is relative, base it on exec_prefixes. A relative
3820 tooldir lets us move the installed tree as a unit.
3822 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3823 directories, so that we can search both the user specified directory
3824 and the standard place. */
3826 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3828 if (gcc_exec_prefix
)
3830 char *gcc_exec_tooldir_prefix
3831 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3832 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3834 add_prefix (&exec_prefixes
,
3835 concat (gcc_exec_tooldir_prefix
, "bin",
3836 dir_separator_str
, NULL
),
3837 NULL
, PREFIX_PRIORITY_LAST
, 0, 0);
3838 add_prefix (&startfile_prefixes
,
3839 concat (gcc_exec_tooldir_prefix
, "lib",
3840 dir_separator_str
, NULL
),
3841 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
3844 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3845 dir_separator_str
, spec_version
,
3846 dir_separator_str
, tooldir_prefix
, NULL
);
3849 add_prefix (&exec_prefixes
,
3850 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3851 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3852 add_prefix (&startfile_prefixes
,
3853 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3854 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3856 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3857 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3858 then consider it to relocate with the rest of the GCC installation
3859 if GCC_EXEC_PREFIX is set.
3860 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3861 if (target_system_root
&& gcc_exec_prefix
)
3863 char *tmp_prefix
= make_relative_prefix (argv
[0],
3864 standard_bindir_prefix
,
3865 target_system_root
);
3866 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3868 target_system_root
= tmp_prefix
;
3869 target_system_root_changed
= 1;
3874 /* More prefixes are enabled in main, after we read the specs file
3875 and determine whether this is cross-compilation or not. */
3877 /* Then create the space for the vectors and scan again. */
3879 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3880 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3883 last_language_n_infiles
= -1;
3885 /* This, time, copy the text of each switch and store a pointer
3886 to the copy in the vector of switches.
3887 Store all the infiles in their vector. */
3889 for (i
= 1; i
< argc
; i
++)
3891 /* Just skip the switches that were handled by the preceding loop. */
3892 #ifdef MODIFY_TARGET_NAME
3893 is_modify_target_name
= 0;
3895 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3896 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3897 is_modify_target_name
= 1;
3899 if (is_modify_target_name
)
3903 if (! strncmp (argv
[i
], "-Wa,", 4))
3905 else if (! strncmp (argv
[i
], "-Wp,", 4))
3907 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3909 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3911 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3913 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3915 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3917 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3919 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3921 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3923 else if (! strcmp (argv
[i
], "-ftarget-help"))
3925 else if (! strcmp (argv
[i
], "-fhelp"))
3927 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3929 /* Compensate for the +e options to the C++ front-end;
3930 they're there simply for cfront call-compatibility. We do
3931 some magic in default_compilers to pass them down properly.
3932 Note we deliberately start at the `+' here, to avoid passing
3933 -e0 or -e1 down into the linker. */
3934 switches
[n_switches
].part1
= &argv
[i
][0];
3935 switches
[n_switches
].args
= 0;
3936 switches
[n_switches
].live_cond
= SWITCH_OK
;
3937 switches
[n_switches
].validated
= 0;
3940 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3943 /* Split the argument at commas. */
3945 for (j
= 4; argv
[i
][j
]; j
++)
3946 if (argv
[i
][j
] == ',')
3948 infiles
[n_infiles
].language
= "*";
3949 infiles
[n_infiles
++].name
3950 = save_string (argv
[i
] + prev
, j
- prev
);
3953 /* Record the part after the last comma. */
3954 infiles
[n_infiles
].language
= "*";
3955 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3957 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3959 infiles
[n_infiles
].language
= "*";
3960 infiles
[n_infiles
++].name
= argv
[++i
];
3962 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3964 infiles
[n_infiles
].language
= "*";
3965 infiles
[n_infiles
++].name
= argv
[++i
];
3967 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3969 infiles
[n_infiles
].language
= "*";
3970 infiles
[n_infiles
++].name
= argv
[++i
];
3972 else if (strcmp (argv
[i
], "-l") == 0)
3973 { /* POSIX allows separation of -l and the lib arg;
3974 canonicalize by concatenating -l with its arg */
3975 infiles
[n_infiles
].language
= "*";
3976 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3978 else if (strncmp (argv
[i
], "-l", 2) == 0)
3980 infiles
[n_infiles
].language
= "*";
3981 infiles
[n_infiles
++].name
= argv
[i
];
3983 else if (strcmp (argv
[i
], "-specs") == 0)
3985 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3987 else if (strcmp (argv
[i
], "-time") == 0)
3989 else if (strcmp (argv
[i
], "-###") == 0)
3991 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3993 const char *p
= &argv
[i
][1];
3998 if (p
[1] == 0 && i
+ 1 == argc
)
3999 fatal ("argument to '-x' is missing");
4001 spec_lang
= argv
[++i
];
4004 if (! strcmp (spec_lang
, "none"))
4005 /* Suppress the warning if -xnone comes after the last input
4006 file, because alternate command interfaces like g++ might
4007 find it useful to place -xnone after each input file. */
4010 last_language_n_infiles
= n_infiles
;
4013 switches
[n_switches
].part1
= p
;
4014 /* Deal with option arguments in separate argv elements. */
4015 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4016 || WORD_SWITCH_TAKES_ARG (p
))
4019 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4023 /* Count only the option arguments in separate argv elements. */
4024 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4026 if (i
+ n_args
>= argc
)
4027 fatal ("argument to '-%s' is missing", p
);
4028 switches
[n_switches
].args
4029 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4031 switches
[n_switches
].args
[j
++] = argv
[++i
];
4032 /* Null-terminate the vector. */
4033 switches
[n_switches
].args
[j
] = 0;
4035 else if (strchr (switches_need_spaces
, c
))
4037 /* On some systems, ld cannot handle some options without
4038 a space. So split the option from its argument. */
4039 char *part1
= xmalloc (2);
4043 switches
[n_switches
].part1
= part1
;
4044 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4045 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4046 switches
[n_switches
].args
[1] = 0;
4049 switches
[n_switches
].args
= 0;
4051 switches
[n_switches
].live_cond
= SWITCH_OK
;
4052 switches
[n_switches
].validated
= 0;
4053 switches
[n_switches
].ordering
= 0;
4054 /* These are always valid, since gcc.c itself understands them. */
4055 if (!strcmp (p
, "save-temps")
4056 || !strcmp (p
, "static-libgcc")
4057 || !strcmp (p
, "shared-libgcc")
4058 || !strcmp (p
, "pipe"))
4059 switches
[n_switches
].validated
= 1;
4062 char ch
= switches
[n_switches
].part1
[0];
4064 switches
[n_switches
].validated
= 1;
4070 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4071 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4074 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4076 perror_with_name (argv
[i
]);
4081 infiles
[n_infiles
].language
= spec_lang
;
4082 infiles
[n_infiles
++].name
= argv
[i
];
4087 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4088 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4090 /* Ensure we only invoke each subprocess once. */
4091 if (target_help_flag
|| print_help_list
)
4095 /* Create a dummy input file, so that we can pass --target-help on to
4096 the various sub-processes. */
4097 infiles
[0].language
= "c";
4098 infiles
[0].name
= "help-dummy";
4100 if (target_help_flag
)
4102 switches
[n_switches
].part1
= "--target-help";
4103 switches
[n_switches
].args
= 0;
4104 switches
[n_switches
].live_cond
= SWITCH_OK
;
4105 switches
[n_switches
].validated
= 0;
4110 if (print_help_list
)
4112 switches
[n_switches
].part1
= "--help";
4113 switches
[n_switches
].args
= 0;
4114 switches
[n_switches
].live_cond
= SWITCH_OK
;
4115 switches
[n_switches
].validated
= 0;
4121 switches
[n_switches
].part1
= 0;
4122 infiles
[n_infiles
].name
= 0;
4125 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4126 and place that in the environment. */
4129 set_collect_gcc_options (void)
4134 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4136 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4137 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4140 for (i
= 0; (int) i
< n_switches
; i
++)
4142 const char *const *args
;
4145 obstack_grow (&collect_obstack
, " ", 1);
4149 /* Ignore elided switches. */
4150 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4153 obstack_grow (&collect_obstack
, "'-", 2);
4154 q
= switches
[i
].part1
;
4155 while ((p
= strchr (q
, '\'')))
4157 obstack_grow (&collect_obstack
, q
, p
- q
);
4158 obstack_grow (&collect_obstack
, "'\\''", 4);
4161 obstack_grow (&collect_obstack
, q
, strlen (q
));
4162 obstack_grow (&collect_obstack
, "'", 1);
4164 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4166 obstack_grow (&collect_obstack
, " '", 2);
4168 while ((p
= strchr (q
, '\'')))
4170 obstack_grow (&collect_obstack
, q
, p
- q
);
4171 obstack_grow (&collect_obstack
, "'\\''", 4);
4174 obstack_grow (&collect_obstack
, q
, strlen (q
));
4175 obstack_grow (&collect_obstack
, "'", 1);
4178 obstack_grow (&collect_obstack
, "\0", 1);
4179 putenv (obstack_finish (&collect_obstack
));
4182 /* Process a spec string, accumulating and running commands. */
4184 /* These variables describe the input file name.
4185 input_file_number is the index on outfiles of this file,
4186 so that the output file name can be stored for later use by %o.
4187 input_basename is the start of the part of the input file
4188 sans all directory names, and basename_length is the number
4189 of characters starting there excluding the suffix .c or whatever. */
4191 static const char *input_filename
;
4192 static int input_file_number
;
4193 size_t input_filename_length
;
4194 static int basename_length
;
4195 static int suffixed_basename_length
;
4196 static const char *input_basename
;
4197 static const char *input_suffix
;
4198 #ifndef HOST_LACKS_INODE_NUMBERS
4199 static struct stat input_stat
;
4201 static int input_stat_set
;
4203 /* The compiler used to process the current input file. */
4204 static struct compiler
*input_file_compiler
;
4206 /* These are variables used within do_spec and do_spec_1. */
4208 /* Nonzero if an arg has been started and not yet terminated
4209 (with space, tab or newline). */
4210 static int arg_going
;
4212 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4213 is a temporary file name. */
4214 static int delete_this_arg
;
4216 /* Nonzero means %w has been seen; the next arg to be terminated
4217 is the output file name of this compilation. */
4218 static int this_is_output_file
;
4220 /* Nonzero means %s has been seen; the next arg to be terminated
4221 is the name of a library file and we should try the standard
4222 search dirs for it. */
4223 static int this_is_library_file
;
4225 /* Nonzero means that the input of this command is coming from a pipe. */
4226 static int input_from_pipe
;
4228 /* Nonnull means substitute this for any suffix when outputting a switches
4230 static const char *suffix_subst
;
4232 /* Process the spec SPEC and run the commands specified therein.
4233 Returns 0 if the spec is successfully processed; -1 if failed. */
4236 do_spec (const char *spec
)
4240 value
= do_spec_2 (spec
);
4242 /* Force out any unfinished command.
4243 If -pipe, this forces out the last command if it ended in `|'. */
4246 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4249 set_collect_gcc_options ();
4251 if (argbuf_index
> 0)
4259 do_spec_2 (const char *spec
)
4266 delete_this_arg
= 0;
4267 this_is_output_file
= 0;
4268 this_is_library_file
= 0;
4269 input_from_pipe
= 0;
4270 suffix_subst
= NULL
;
4272 result
= do_spec_1 (spec
, 0, NULL
);
4274 /* End any pending argument. */
4277 obstack_1grow (&obstack
, 0);
4278 string
= obstack_finish (&obstack
);
4279 if (this_is_library_file
)
4280 string
= find_file (string
);
4281 store_arg (string
, delete_this_arg
, this_is_output_file
);
4282 if (this_is_output_file
)
4283 outfiles
[input_file_number
] = string
;
4291 /* Process the given spec string and add any new options to the end
4292 of the switches/n_switches array. */
4295 do_option_spec (const char *name
, const char *spec
)
4297 unsigned int i
, value_count
, value_len
;
4298 const char *p
, *q
, *value
;
4299 char *tmp_spec
, *tmp_spec_p
;
4301 if (configure_default_options
[0].name
== NULL
)
4304 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4305 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4307 if (i
== ARRAY_SIZE (configure_default_options
))
4310 value
= configure_default_options
[i
].value
;
4311 value_len
= strlen (value
);
4313 /* Compute the size of the final spec. */
4316 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4322 /* Replace each %(VALUE) by the specified value. */
4323 tmp_spec
= alloca (strlen (spec
) + 1
4324 + value_count
* (value_len
- strlen ("%(VALUE)")));
4325 tmp_spec_p
= tmp_spec
;
4327 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4329 memcpy (tmp_spec_p
, q
, p
- q
);
4330 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4331 memcpy (tmp_spec_p
, value
, value_len
);
4332 tmp_spec_p
+= value_len
;
4333 q
= p
+ strlen ("%(VALUE)");
4335 strcpy (tmp_spec_p
, q
);
4337 do_self_spec (tmp_spec
);
4340 /* Process the given spec string and add any new options to the end
4341 of the switches/n_switches array. */
4344 do_self_spec (const char *spec
)
4347 do_spec_1 (" ", 0, NULL
);
4349 if (argbuf_index
> 0)
4354 n_switches
+= argbuf_index
;
4355 switches
= xrealloc (switches
,
4356 sizeof (struct switchstr
) * (n_switches
+ 1));
4358 switches
[n_switches
] = switches
[first
];
4359 for (i
= 0; i
< argbuf_index
; i
++)
4361 struct switchstr
*sw
;
4363 /* Each switch should start with '-'. */
4364 if (argbuf
[i
][0] != '-')
4365 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4367 sw
= &switches
[i
+ first
];
4368 sw
->part1
= &argbuf
[i
][1];
4370 sw
->live_cond
= SWITCH_OK
;
4378 do_spec_path (struct prefix_list
*pl
, const char *option
,
4379 int omit_if_relative
, int separate_options
,
4381 const char *dir_for_machine_suffix
,
4382 const char *dir_for_no_suffix
)
4384 static size_t bufsize
= 0;
4385 static char *buffer
;
4388 /* Used on systems which record the specified -L dirs
4389 and use them to search for dynamic linking. */
4390 /* Relative directories always come from -B,
4391 and it is better not to use them for searching
4392 at run time. In particular, stage1 loses. */
4393 if (omit_if_relative
4394 && !IS_ABSOLUTE_PATH (pl
->prefix
))
4397 /* Try subdirectory if there is one. */
4398 if (machine_suffix
&& dir_for_machine_suffix
)
4400 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4402 bufsize
= (strlen (pl
->prefix
)
4403 + strlen (machine_suffix
)) * 2 + 1;
4404 buffer
= xrealloc (buffer
, bufsize
);
4405 strcpy (buffer
, pl
->prefix
);
4406 strcat (buffer
, machine_suffix
);
4407 if (is_directory (buffer
, dir_for_machine_suffix
, 1))
4409 do_spec_1 (option
, separate_options
, NULL
);
4410 if (separate_options
)
4411 do_spec_1 (" ", 0, NULL
);
4412 do_spec_1 (buffer
, 1, NULL
);
4413 do_spec_1 (dir_for_machine_suffix
, 1, NULL
);
4414 /* Make this a separate argument. */
4415 do_spec_1 (" ", 0, NULL
);
4418 if (!pl
->require_machine_suffix
&& dir_for_no_suffix
)
4420 if (is_directory (pl
->prefix
, dir_for_no_suffix
, 1))
4422 do_spec_1 (option
, separate_options
, NULL
);
4423 if (separate_options
)
4424 do_spec_1 (" ", 0, NULL
);
4425 do_spec_1 (pl
->prefix
, 1, NULL
);
4426 do_spec_1 (dir_for_no_suffix
, 1, NULL
);
4427 /* Make this a separate argument. */
4428 do_spec_1 (" ", 0, NULL
);
4437 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4439 do_spec_1 (option
, separate_options
, NULL
);
4440 if (separate_options
)
4441 do_spec_1 (" ", 0, NULL
);
4442 do_spec_1 (pl
->prefix
, 1, NULL
);
4443 /* Remove slash from machine_suffix. */
4444 if (strlen (machine_suffix
) >= bufsize
)
4445 bufsize
= strlen (machine_suffix
) * 2 + 1;
4446 buffer
= xrealloc (buffer
, bufsize
);
4447 strcpy (buffer
, machine_suffix
);
4448 idx
= strlen (buffer
);
4449 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4450 buffer
[idx
- 1] = 0;
4451 do_spec_1 (buffer
, 1, NULL
);
4452 /* Make this a separate argument. */
4453 do_spec_1 (" ", 0, NULL
);
4456 if (!pl
->require_machine_suffix
)
4458 if (is_directory (pl
->prefix
, "", 1))
4460 do_spec_1 (option
, separate_options
, NULL
);
4461 if (separate_options
)
4462 do_spec_1 (" ", 0, NULL
);
4463 /* Remove slash from pl->prefix. */
4464 if (strlen (pl
->prefix
) >= bufsize
)
4465 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4466 buffer
= xrealloc (buffer
, bufsize
);
4467 strcpy (buffer
, pl
->prefix
);
4468 idx
= strlen (buffer
);
4469 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4470 buffer
[idx
- 1] = 0;
4471 do_spec_1 (buffer
, 1, NULL
);
4472 /* Make this a separate argument. */
4473 do_spec_1 (" ", 0, NULL
);
4478 /* Process the sub-spec SPEC as a portion of a larger spec.
4479 This is like processing a whole spec except that we do
4480 not initialize at the beginning and we do not supply a
4481 newline by default at the end.
4482 INSWITCH nonzero means don't process %-sequences in SPEC;
4483 in this case, % is treated as an ordinary character.
4484 This is used while substituting switches.
4485 INSWITCH nonzero also causes SPC not to terminate an argument.
4487 Value is zero unless a line was finished
4488 and the command on that line reported an error. */
4491 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4493 const char *p
= spec
;
4500 /* If substituting a switch, treat all chars like letters.
4501 Otherwise, NL, SPC, TAB and % are special. */
4502 switch (inswitch
? 'a' : c
)
4505 /* End of line: finish any pending argument,
4506 then run the pending command if one has been started. */
4509 obstack_1grow (&obstack
, 0);
4510 string
= obstack_finish (&obstack
);
4511 if (this_is_library_file
)
4512 string
= find_file (string
);
4513 store_arg (string
, delete_this_arg
, this_is_output_file
);
4514 if (this_is_output_file
)
4515 outfiles
[input_file_number
] = string
;
4519 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4521 /* A `|' before the newline means use a pipe here,
4522 but only if -pipe was specified.
4523 Otherwise, execute now and don't pass the `|' as an arg. */
4526 input_from_pipe
= 1;
4533 set_collect_gcc_options ();
4535 if (argbuf_index
> 0)
4541 /* Reinitialize for a new command, and for a new argument. */
4544 delete_this_arg
= 0;
4545 this_is_output_file
= 0;
4546 this_is_library_file
= 0;
4547 input_from_pipe
= 0;
4551 /* End any pending argument. */
4554 obstack_1grow (&obstack
, 0);
4555 string
= obstack_finish (&obstack
);
4556 if (this_is_library_file
)
4557 string
= find_file (string
);
4558 store_arg (string
, delete_this_arg
, this_is_output_file
);
4559 if (this_is_output_file
)
4560 outfiles
[input_file_number
] = string
;
4564 obstack_1grow (&obstack
, c
);
4570 /* Space or tab ends an argument if one is pending. */
4573 obstack_1grow (&obstack
, 0);
4574 string
= obstack_finish (&obstack
);
4575 if (this_is_library_file
)
4576 string
= find_file (string
);
4577 store_arg (string
, delete_this_arg
, this_is_output_file
);
4578 if (this_is_output_file
)
4579 outfiles
[input_file_number
] = string
;
4581 /* Reinitialize for a new argument. */
4583 delete_this_arg
= 0;
4584 this_is_output_file
= 0;
4585 this_is_library_file
= 0;
4592 fatal ("spec '%s' invalid", spec
);
4595 obstack_grow (&obstack
, input_basename
, basename_length
);
4600 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4605 delete_this_arg
= 2;
4608 /* Dump out the directories specified with LIBRARY_PATH,
4609 followed by the absolute directories
4610 that we search for startfiles. */
4613 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4615 for (; pl
; pl
= pl
->next
)
4617 const char *no_suffix_multilib_dir
;
4619 no_suffix_multilib_dir
= pl
->os_multilib
? multilib_os_dir
4621 /* Do not separate options, include non-multilibbed variant. */
4622 do_spec_path (pl
, "-L",
4623 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4628 0, 0, multilib_dir
, no_suffix_multilib_dir
);
4634 /* %efoo means report an error with `foo' as error message
4635 and don't execute any more commands for this file. */
4639 while (*p
!= 0 && *p
!= '\n')
4641 buf
= alloca (p
- q
+ 1);
4642 strncpy (buf
, q
, p
- q
);
4649 /* %nfoo means report a notice with `foo' on stderr. */
4653 while (*p
!= 0 && *p
!= '\n')
4655 buf
= alloca (p
- q
+ 1);
4656 strncpy (buf
, q
, p
- q
);
4658 notice ("%s\n", buf
);
4668 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4669 defined, and it is not a directory, and it is
4670 writable, use it. Otherwise, treat this like any
4671 other temporary file. */
4673 if ((!save_temps_flag
)
4674 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4675 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4677 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4678 strlen (HOST_BIT_BUCKET
));
4679 delete_this_arg
= 0;
4684 goto create_temp_file
;
4688 obstack_1grow (&obstack
, '-');
4689 delete_this_arg
= 0;
4692 /* consume suffix */
4693 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4695 if (p
[0] == '%' && p
[1] == 'O')
4700 goto create_temp_file
;
4704 /* consume suffix */
4705 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4707 if (p
[0] == '%' && p
[1] == 'O')
4712 goto create_temp_file
;
4718 struct temp_name
*t
;
4720 const char *suffix
= p
;
4721 char *saved_suffix
= NULL
;
4723 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4725 suffix_length
= p
- suffix
;
4726 if (p
[0] == '%' && p
[1] == 'O')
4729 /* We don't support extra suffix characters after %O. */
4730 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4731 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4732 if (suffix_length
== 0)
4733 suffix
= TARGET_OBJECT_SUFFIX
;
4737 = xmalloc (suffix_length
4738 + strlen (TARGET_OBJECT_SUFFIX
));
4739 strncpy (saved_suffix
, suffix
, suffix_length
);
4740 strcpy (saved_suffix
+ suffix_length
,
4741 TARGET_OBJECT_SUFFIX
);
4743 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4746 /* If the input_filename has the same suffix specified
4747 for the %g, %u, or %U, and -save-temps is specified,
4748 we could end up using that file as an intermediate
4749 thus clobbering the user's source file (.e.g.,
4750 gcc -save-temps foo.s would clobber foo.s with the
4751 output of cpp0). So check for this condition and
4752 generate a temp file as the intermediate. */
4754 if (save_temps_flag
)
4756 temp_filename_length
= basename_length
+ suffix_length
;
4757 temp_filename
= alloca (temp_filename_length
+ 1);
4758 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4759 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4761 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4762 if (strcmp (temp_filename
, input_filename
) != 0)
4764 #ifndef HOST_LACKS_INODE_NUMBERS
4765 struct stat st_temp
;
4767 /* Note, set_input() resets input_stat_set to 0. */
4768 if (input_stat_set
== 0)
4770 input_stat_set
= stat (input_filename
, &input_stat
);
4771 if (input_stat_set
>= 0)
4775 /* If we have the stat for the input_filename
4776 and we can do the stat for the temp_filename
4777 then the they could still refer to the same
4778 file if st_dev/st_ino's are the same. */
4779 if (input_stat_set
!= 1
4780 || stat (temp_filename
, &st_temp
) < 0
4781 || input_stat
.st_dev
!= st_temp
.st_dev
4782 || input_stat
.st_ino
!= st_temp
.st_ino
)
4784 /* Just compare canonical pathnames. */
4785 char* input_realname
= lrealpath (input_filename
);
4786 char* temp_realname
= lrealpath (temp_filename
);
4787 bool files_differ
= strcmp (input_realname
, temp_realname
);
4788 free (input_realname
);
4789 free (temp_realname
);
4793 temp_filename
= save_string (temp_filename
,
4794 temp_filename_length
+ 1);
4795 obstack_grow (&obstack
, temp_filename
,
4796 temp_filename_length
);
4798 delete_this_arg
= 0;
4804 /* See if we already have an association of %g/%u/%U and
4806 for (t
= temp_names
; t
; t
= t
->next
)
4807 if (t
->length
== suffix_length
4808 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4809 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4812 /* Make a new association if needed. %u and %j
4814 if (t
== 0 || c
== 'u' || c
== 'j')
4818 t
= xmalloc (sizeof (struct temp_name
));
4819 t
->next
= temp_names
;
4822 t
->length
= suffix_length
;
4825 t
->suffix
= saved_suffix
;
4826 saved_suffix
= NULL
;
4829 t
->suffix
= save_string (suffix
, suffix_length
);
4830 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4831 temp_filename
= make_temp_file (t
->suffix
);
4832 temp_filename_length
= strlen (temp_filename
);
4833 t
->filename
= temp_filename
;
4834 t
->filename_length
= temp_filename_length
;
4838 free (saved_suffix
);
4840 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4841 delete_this_arg
= 1;
4849 for (i
= 0; (int) i
< n_infiles
; i
++)
4850 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4851 if (infiles
[i
].incompiler
== input_file_compiler
)
4853 store_arg (infiles
[i
].name
, 0, 0);
4854 infiles
[i
].compiled
= true;
4859 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4866 struct prefix_list
*pl
= include_prefixes
.plist
;
4868 if (gcc_exec_prefix
)
4870 do_spec_1 ("-iprefix", 1, NULL
);
4871 /* Make this a separate argument. */
4872 do_spec_1 (" ", 0, NULL
);
4873 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4874 do_spec_1 (" ", 0, NULL
);
4877 if (target_system_root_changed
||
4878 (target_system_root
&& target_sysroot_hdrs_suffix
))
4880 do_spec_1 ("-isysroot", 1, NULL
);
4881 /* Make this a separate argument. */
4882 do_spec_1 (" ", 0, NULL
);
4883 do_spec_1 (target_system_root
, 1, NULL
);
4884 if (target_sysroot_hdrs_suffix
)
4885 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4886 do_spec_1 (" ", 0, NULL
);
4889 for (; pl
; pl
= pl
->next
)
4890 /* Separate options, don't include non-suffixed variant. */
4891 do_spec_path (pl
, "-isystem", 0, 1, 1, "include", "include");
4897 int max
= n_infiles
;
4898 max
+= lang_specific_extra_outfiles
;
4900 for (i
= 0; i
< max
; i
++)
4902 store_arg (outfiles
[i
], 0, 0);
4907 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4912 this_is_library_file
= 1;
4916 outfiles
[input_file_number
] = NULL
;
4920 this_is_output_file
= 1;
4925 int cur_index
= argbuf_index
;
4926 /* Handle the {...} following the %W. */
4928 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
4929 p
= handle_braces (p
+ 1);
4932 /* End any pending argument. */
4935 obstack_1grow (&obstack
, 0);
4936 string
= obstack_finish (&obstack
);
4937 if (this_is_library_file
)
4938 string
= find_file (string
);
4939 store_arg (string
, delete_this_arg
, this_is_output_file
);
4940 if (this_is_output_file
)
4941 outfiles
[input_file_number
] = string
;
4944 /* If any args were output, mark the last one for deletion
4946 if (argbuf_index
!= cur_index
)
4947 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4951 /* %x{OPTION} records OPTION for %X to output. */
4957 /* Skip past the option value and make a copy. */
4959 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
4962 string
= save_string (p1
+ 1, p
- p1
- 2);
4964 /* See if we already recorded this option. */
4965 for (i
= 0; i
< n_linker_options
; i
++)
4966 if (! strcmp (string
, linker_options
[i
]))
4972 /* This option is new; add it. */
4973 add_linker_option (string
, strlen (string
));
4977 /* Dump out the options accumulated previously using %x. */
4979 for (i
= 0; i
< n_linker_options
; i
++)
4981 do_spec_1 (linker_options
[i
], 1, NULL
);
4982 /* Make each accumulated option a separate argument. */
4983 do_spec_1 (" ", 0, NULL
);
4987 /* Dump out the options accumulated previously using -Wa,. */
4989 for (i
= 0; i
< n_assembler_options
; i
++)
4991 do_spec_1 (assembler_options
[i
], 1, NULL
);
4992 /* Make each accumulated option a separate argument. */
4993 do_spec_1 (" ", 0, NULL
);
4997 /* Dump out the options accumulated previously using -Wp,. */
4999 for (i
= 0; i
< n_preprocessor_options
; i
++)
5001 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5002 /* Make each accumulated option a separate argument. */
5003 do_spec_1 (" ", 0, NULL
);
5007 /* Here are digits and numbers that just process
5008 a certain constant string as a spec. */
5011 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5017 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5023 value
= do_spec_1 (asm_spec
, 0, NULL
);
5029 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5036 const char *const spec
5037 = (input_file_compiler
->cpp_spec
5038 ? input_file_compiler
->cpp_spec
5040 value
= do_spec_1 (spec
, 0, NULL
);
5047 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5053 value
= do_spec_1 (link_spec
, 0, NULL
);
5059 value
= do_spec_1 (lib_spec
, 0, NULL
);
5065 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5071 /* We assume there is a directory
5072 separator at the end of this string. */
5073 if (target_system_root
)
5075 obstack_grow (&obstack
, target_system_root
,
5076 strlen (target_system_root
));
5077 if (target_sysroot_suffix
)
5078 obstack_grow (&obstack
, target_sysroot_suffix
,
5079 strlen (target_sysroot_suffix
));
5084 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5089 /* Here we define characters other than letters and digits. */
5092 p
= handle_braces (p
);
5098 p
= handle_spec_function (p
);
5104 obstack_1grow (&obstack
, '%');
5111 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5113 suffix_subst
= save_string (p
- 1, len
+ 1);
5118 /* Henceforth ignore the option(s) matching the pattern
5123 int have_wildcard
= 0;
5126 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5129 if (p
[len
-1] == '*')
5132 for (i
= 0; i
< n_switches
; i
++)
5133 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5134 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5136 switches
[i
].live_cond
= SWITCH_IGNORE
;
5137 switches
[i
].validated
= 1;
5145 if (soft_matched_part
)
5147 do_spec_1 (soft_matched_part
, 1, NULL
);
5148 do_spec_1 (" ", 0, NULL
);
5151 /* Catch the case where a spec string contains something like
5152 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5153 hand side of the :. */
5154 error ("spec failure: '%%*' has not been initialized by pattern match");
5157 /* Process a string found as the value of a spec given by name.
5158 This feature allows individual machine descriptions
5159 to add and use their own specs.
5160 %[...] modifies -D options the way %P does;
5161 %(...) uses the spec unmodified. */
5163 error ("warning: use of obsolete %%[ operator in specs");
5166 const char *name
= p
;
5167 struct spec_list
*sl
;
5170 /* The string after the S/P is the name of a spec that is to be
5172 while (*p
&& *p
!= ')' && *p
!= ']')
5175 /* See if it's in the list. */
5176 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5177 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5179 name
= *(sl
->ptr_spec
);
5181 notice ("Processing spec %c%s%c, which is '%s'\n",
5182 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5191 value
= do_spec_1 (name
, 0, NULL
);
5197 char *x
= alloca (strlen (name
) * 2 + 1);
5199 const char *y
= name
;
5202 /* Copy all of NAME into BUF, but put __ after
5203 every -D and at the end of each arg. */
5206 if (! strncmp (y
, "-D", 2))
5217 && (*y
== ' ' || *y
== '\t' || *y
== '='
5218 || *y
== '}' || *y
== 0))
5231 value
= do_spec_1 (buf
, 0, NULL
);
5237 /* Discard the closing paren or bracket. */
5244 error ("spec failure: unrecognized spec option '%c'", c
);
5250 /* Backslash: treat next character as ordinary. */
5255 /* Ordinary character: put it into the current argument. */
5256 obstack_1grow (&obstack
, c
);
5260 /* End of string. If we are processing a spec function, we need to
5261 end any pending argument. */
5262 if (processing_spec_function
&& arg_going
)
5264 obstack_1grow (&obstack
, 0);
5265 string
= obstack_finish (&obstack
);
5266 if (this_is_library_file
)
5267 string
= find_file (string
);
5268 store_arg (string
, delete_this_arg
, this_is_output_file
);
5269 if (this_is_output_file
)
5270 outfiles
[input_file_number
] = string
;
5277 /* Look up a spec function. */
5279 static const struct spec_function
*
5280 lookup_spec_function (const char *name
)
5282 static const struct spec_function
* const spec_function_tables
[] =
5284 static_spec_functions
,
5285 lang_specific_spec_functions
,
5287 const struct spec_function
*sf
;
5290 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5292 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5293 if (strcmp (sf
->name
, name
) == 0)
5300 /* Evaluate a spec function. */
5303 eval_spec_function (const char *func
, const char *args
)
5305 const struct spec_function
*sf
;
5306 const char *funcval
;
5308 /* Saved spec processing context. */
5309 int save_argbuf_index
;
5310 int save_argbuf_length
;
5311 const char **save_argbuf
;
5314 int save_delete_this_arg
;
5315 int save_this_is_output_file
;
5316 int save_this_is_library_file
;
5317 int save_input_from_pipe
;
5318 const char *save_suffix_subst
;
5321 sf
= lookup_spec_function (func
);
5323 fatal ("unknown spec function '%s'", func
);
5325 /* Push the spec processing context. */
5326 save_argbuf_index
= argbuf_index
;
5327 save_argbuf_length
= argbuf_length
;
5328 save_argbuf
= argbuf
;
5330 save_arg_going
= arg_going
;
5331 save_delete_this_arg
= delete_this_arg
;
5332 save_this_is_output_file
= this_is_output_file
;
5333 save_this_is_library_file
= this_is_library_file
;
5334 save_input_from_pipe
= input_from_pipe
;
5335 save_suffix_subst
= suffix_subst
;
5337 /* Create a new spec processing context, and build the function
5341 if (do_spec_2 (args
) < 0)
5342 fatal ("error in args to spec function '%s'", func
);
5344 /* argbuf_index is an index for the next argument to be inserted, and
5345 so contains the count of the args already inserted. */
5347 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5349 /* Pop the spec processing context. */
5350 argbuf_index
= save_argbuf_index
;
5351 argbuf_length
= save_argbuf_length
;
5353 argbuf
= save_argbuf
;
5355 arg_going
= save_arg_going
;
5356 delete_this_arg
= save_delete_this_arg
;
5357 this_is_output_file
= save_this_is_output_file
;
5358 this_is_library_file
= save_this_is_library_file
;
5359 input_from_pipe
= save_input_from_pipe
;
5360 suffix_subst
= save_suffix_subst
;
5365 /* Handle a spec function call of the form:
5369 ARGS is processed as a spec in a separate context and split into an
5370 argument vector in the normal fashion. The function returns a string
5371 containing a spec which we then process in the caller's context, or
5372 NULL if no processing is required. */
5375 handle_spec_function (const char *p
)
5378 const char *endp
, *funcval
;
5381 processing_spec_function
++;
5383 /* Get the function name. */
5384 for (endp
= p
; *endp
!= '\0'; endp
++)
5386 if (*endp
== '(') /* ) */
5388 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5389 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5390 fatal ("malformed spec function name");
5392 if (*endp
!= '(') /* ) */
5393 fatal ("no arguments for spec function");
5394 func
= save_string (p
, endp
- p
);
5397 /* Get the arguments. */
5398 for (count
= 0; *endp
!= '\0'; endp
++)
5407 else if (*endp
== '(') /* ) */
5412 fatal ("malformed spec function arguments");
5413 args
= save_string (p
, endp
- p
);
5416 /* p now points to just past the end of the spec function expression. */
5418 funcval
= eval_spec_function (func
, args
);
5419 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5425 processing_spec_function
--;
5430 /* Inline subroutine of handle_braces. Returns true if the current
5431 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5433 input_suffix_matches (const char *atom
, const char *end_atom
)
5435 /* We special case the semantics of {.s:...} and {.S:...} and their
5436 negative variants. Instead of testing the input filename suffix,
5437 we test whether the input source file is an assembler file or an
5438 assembler-with-cpp file respectively. This allows us to correctly
5439 handle the -x command line option. */
5441 if (atom
+ 1 == end_atom
5442 && input_file_compiler
5443 && input_file_compiler
->suffix
)
5446 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5448 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5451 return (input_suffix
5452 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5453 && input_suffix
[end_atom
- atom
] == '\0');
5456 /* Inline subroutine of handle_braces. Returns true if a switch
5457 matching the atom bracketed by ATOM and END_ATOM appeared on the
5460 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5463 int len
= end_atom
- atom
;
5464 int plen
= starred
? len
: -1;
5466 for (i
= 0; i
< n_switches
; i
++)
5467 if (!strncmp (switches
[i
].part1
, atom
, len
)
5468 && (starred
|| switches
[i
].part1
[len
] == '\0')
5469 && check_live_switch (i
, plen
))
5475 /* Inline subroutine of handle_braces. Mark all of the switches which
5476 match ATOM (extends to END_ATOM; STARRED indicates whether there
5477 was a star after the atom) for later processing. */
5479 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5482 int len
= end_atom
- atom
;
5483 int plen
= starred
? len
: -1;
5485 for (i
= 0; i
< n_switches
; i
++)
5486 if (!strncmp (switches
[i
].part1
, atom
, len
)
5487 && (starred
|| switches
[i
].part1
[len
] == '\0')
5488 && check_live_switch (i
, plen
))
5489 switches
[i
].ordering
= 1;
5492 /* Inline subroutine of handle_braces. Process all the currently
5493 marked switches through give_switch, and clear the marks. */
5495 process_marked_switches (void)
5499 for (i
= 0; i
< n_switches
; i
++)
5500 if (switches
[i
].ordering
== 1)
5502 switches
[i
].ordering
= 0;
5507 /* Handle a %{ ... } construct. P points just inside the leading {.
5508 Returns a pointer one past the end of the brace block, or 0
5509 if we call do_spec_1 and that returns -1. */
5512 handle_braces (const char *p
)
5514 const char *atom
, *end_atom
;
5515 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5516 const char *orig
= p
;
5523 bool a_must_be_last
= false;
5524 bool ordered_set
= false;
5525 bool disjunct_set
= false;
5526 bool disj_matched
= false;
5527 bool disj_starred
= true;
5528 bool n_way_choice
= false;
5529 bool n_way_matched
= false;
5531 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5538 /* Scan one "atom" (S in the description above of %{}, possibly
5539 with !, ., or * modifiers). */
5540 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5544 p
++, a_is_negated
= true;
5548 p
++, a_is_suffix
= true;
5551 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5552 || *p
== ',' || *p
== '.' || *p
== '@')
5557 p
++, a_is_starred
= 1;
5563 /* Substitute the switch(es) indicated by the current atom. */
5565 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5566 || atom
== end_atom
)
5569 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5572 process_marked_switches ();
5576 /* Substitute some text if the current atom appears as a switch
5578 disjunct_set
= true;
5582 if (atom
== end_atom
)
5584 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5585 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5588 /* An empty term may appear as the last choice of an
5589 N-way choice set; it means "otherwise". */
5590 a_must_be_last
= true;
5591 disj_matched
= !n_way_matched
;
5592 disj_starred
= false;
5596 if (a_is_suffix
&& a_is_starred
)
5600 disj_starred
= false;
5602 /* Don't bother testing this atom if we already have a
5604 if (!disj_matched
&& !n_way_matched
)
5607 a_matched
= input_suffix_matches (atom
, end_atom
);
5609 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5611 if (a_matched
!= a_is_negated
)
5613 disj_matched
= true;
5615 d_end_atom
= end_atom
;
5622 /* Found the body, that is, the text to substitute if the
5623 current disjunction matches. */
5624 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5625 disj_matched
&& !n_way_matched
);
5629 /* If we have an N-way choice, reset state for the next
5633 n_way_choice
= true;
5634 n_way_matched
|= disj_matched
;
5635 disj_matched
= false;
5636 disj_starred
= true;
5637 d_atom
= d_end_atom
= NULL
;
5646 while (*p
++ != '}');
5651 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5656 /* Subroutine of handle_braces. Scan and process a brace substitution body
5657 (X in the description of %{} syntax). P points one past the colon;
5658 ATOM and END_ATOM bracket the first atom which was found to be true
5659 (present) in the current disjunction; STARRED indicates whether all
5660 the atoms in the current disjunction were starred (for syntax validation);
5661 MATCHED indicates whether the disjunction matched or not, and therefore
5662 whether or not the body is to be processed through do_spec_1 or just
5663 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5667 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5668 int starred
, int matched
)
5670 const char *body
, *end_body
;
5671 unsigned int nesting_level
;
5672 bool have_subst
= false;
5674 /* Locate the closing } or ;, honoring nested braces.
5675 Trim trailing whitespace. */
5684 if (!--nesting_level
)
5687 else if (*p
== ';' && nesting_level
== 1)
5689 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5691 else if (*p
== '\0')
5697 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5700 if (have_subst
&& !starred
)
5705 /* Copy the substitution body to permanent storage and execute it.
5706 If have_subst is false, this is a simple matter of running the
5707 body through do_spec_1... */
5708 char *string
= save_string (body
, end_body
- body
);
5711 if (do_spec_1 (string
, 0, NULL
) < 0)
5716 /* ... but if have_subst is true, we have to process the
5717 body once for each matching switch, with %* set to the
5718 variant part of the switch. */
5719 unsigned int hard_match_len
= end_atom
- atom
;
5722 for (i
= 0; i
< n_switches
; i
++)
5723 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5724 && check_live_switch (i
, hard_match_len
))
5726 if (do_spec_1 (string
, 0,
5727 &switches
[i
].part1
[hard_match_len
]) < 0)
5729 /* Pass any arguments this switch has. */
5731 suffix_subst
= NULL
;
5739 fatal ("braced spec body '%s' is invalid", body
);
5742 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5743 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5744 spec, or -1 if either exact match or %* is used.
5746 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5747 whose value does not begin with "no-" is obsoleted by the same value
5748 with the "no-", similarly for a switch with the "no-" prefix. */
5751 check_live_switch (int switchnum
, int prefix_length
)
5753 const char *name
= switches
[switchnum
].part1
;
5756 /* In the common case of {<at-most-one-letter>*}, a negating
5757 switch would always match, so ignore that case. We will just
5758 send the conflicting switches to the compiler phase. */
5759 if (prefix_length
>= 0 && prefix_length
<= 1)
5762 /* If we already processed this switch and determined if it was
5763 live or not, return our past determination. */
5764 if (switches
[switchnum
].live_cond
!= 0)
5765 return switches
[switchnum
].live_cond
> 0;
5767 /* Now search for duplicate in a manner that depends on the name. */
5771 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5772 if (switches
[i
].part1
[0] == 'O')
5774 switches
[switchnum
].validated
= 1;
5775 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5780 case 'W': case 'f': case 'm':
5781 if (! strncmp (name
+ 1, "no-", 3))
5783 /* We have Xno-YYY, search for XYYY. */
5784 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5785 if (switches
[i
].part1
[0] == name
[0]
5786 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5788 switches
[switchnum
].validated
= 1;
5789 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5795 /* We have XYYY, search for Xno-YYY. */
5796 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5797 if (switches
[i
].part1
[0] == name
[0]
5798 && switches
[i
].part1
[1] == 'n'
5799 && switches
[i
].part1
[2] == 'o'
5800 && switches
[i
].part1
[3] == '-'
5801 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5803 switches
[switchnum
].validated
= 1;
5804 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5811 /* Otherwise the switch is live. */
5812 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5816 /* Pass a switch to the current accumulating command
5817 in the same form that we received it.
5818 SWITCHNUM identifies the switch; it is an index into
5819 the vector of switches gcc received, which is `switches'.
5820 This cannot fail since it never finishes a command line.
5822 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5825 give_switch (int switchnum
, int omit_first_word
)
5827 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5830 if (!omit_first_word
)
5832 do_spec_1 ("-", 0, NULL
);
5833 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5836 if (switches
[switchnum
].args
!= 0)
5839 for (p
= switches
[switchnum
].args
; *p
; p
++)
5841 const char *arg
= *p
;
5843 do_spec_1 (" ", 0, NULL
);
5846 unsigned length
= strlen (arg
);
5849 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5850 if (arg
[length
] == '.')
5852 ((char *)arg
)[length
] = 0;
5856 do_spec_1 (arg
, 1, NULL
);
5858 ((char *)arg
)[length
] = '.';
5859 do_spec_1 (suffix_subst
, 1, NULL
);
5862 do_spec_1 (arg
, 1, NULL
);
5866 do_spec_1 (" ", 0, NULL
);
5867 switches
[switchnum
].validated
= 1;
5870 /* Search for a file named NAME trying various prefixes including the
5871 user's -B prefix and some standard ones.
5872 Return the absolute file name found. If nothing is found, return NAME. */
5875 find_file (const char *name
)
5879 /* Try multilib_dir if it is defined. */
5880 if (multilib_os_dir
!= NULL
)
5882 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5884 /* If we don't find it in the multi library dir, then fall
5885 through and look for it in the normal places. */
5886 if (newname
!= NULL
)
5890 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5891 return newname
? newname
: name
;
5894 /* Determine whether a directory exists. If LINKER, return 0 for
5895 certain fixed names not needed by the linker. If not LINKER, it is
5896 only important to return 0 if the host machine has a small ARG_MAX
5900 is_directory (const char *path1
, const char *path2
, int linker
)
5902 int len1
= strlen (path1
);
5903 int len2
= strlen (path2
);
5904 char *path
= alloca (3 + len1
+ len2
);
5908 #ifndef SMALL_ARG_MAX
5913 /* Construct the path from the two parts. Ensure the string ends with "/.".
5914 The resulting path will be a directory even if the given path is a
5916 memcpy (path
, path1
, len1
);
5917 memcpy (path
+ len1
, path2
, len2
);
5918 cp
= path
+ len1
+ len2
;
5919 if (!IS_DIR_SEPARATOR (cp
[-1]))
5920 *cp
++ = DIR_SEPARATOR
;
5924 /* Exclude directories that the linker is known to search. */
5927 && strcmp (path
, concat (dir_separator_str
, "lib",
5928 dir_separator_str
, ".", NULL
)) == 0)
5930 && strcmp (path
, concat (dir_separator_str
, "usr",
5931 dir_separator_str
, "lib",
5932 dir_separator_str
, ".", NULL
)) == 0)))
5935 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5938 /* Set up the various global variables to indicate that we're processing
5939 the input file named FILENAME. */
5942 set_input (const char *filename
)
5946 input_filename
= filename
;
5947 input_filename_length
= strlen (input_filename
);
5949 input_basename
= input_filename
;
5950 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5951 /* Skip drive name so 'x:foo' is handled properly. */
5952 if (input_basename
[1] == ':')
5953 input_basename
+= 2;
5955 for (p
= input_basename
; *p
; p
++)
5956 if (IS_DIR_SEPARATOR (*p
))
5957 input_basename
= p
+ 1;
5959 /* Find a suffix starting with the last period,
5960 and set basename_length to exclude that suffix. */
5961 basename_length
= strlen (input_basename
);
5962 suffixed_basename_length
= basename_length
;
5963 p
= input_basename
+ basename_length
;
5964 while (p
!= input_basename
&& *p
!= '.')
5966 if (*p
== '.' && p
!= input_basename
)
5968 basename_length
= p
- input_basename
;
5969 input_suffix
= p
+ 1;
5974 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5975 we will need to do a stat on the input_filename. The
5976 INPUT_STAT_SET signals that the stat is needed. */
5980 /* On fatal signals, delete all the temporary files. */
5983 fatal_error (int signum
)
5985 signal (signum
, SIG_DFL
);
5986 delete_failure_queue ();
5987 delete_temp_files ();
5988 /* Get the same signal again, this time not handled,
5989 so its normal effect occurs. */
5990 kill (getpid (), signum
);
5993 extern int main (int, const char **);
5996 main (int argc
, const char **argv
)
6000 int linker_was_run
= 0;
6001 int lang_n_infiles
= 0;
6002 int num_linker_inputs
= 0;
6003 char *explicit_link_files
;
6006 struct user_specs
*uptr
;
6008 p
= argv
[0] + strlen (argv
[0]);
6009 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6013 xmalloc_set_program_name (programname
);
6015 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6016 /* Perform host dependent initialization when needed. */
6017 GCC_DRIVER_HOST_INITIALIZATION
;
6020 gcc_init_libintl ();
6022 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6023 signal (SIGINT
, fatal_error
);
6025 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6026 signal (SIGHUP
, fatal_error
);
6028 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6029 signal (SIGTERM
, fatal_error
);
6031 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6032 signal (SIGPIPE
, fatal_error
);
6035 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6036 receive the signal. A different setting is inheritable */
6037 signal (SIGCHLD
, SIG_DFL
);
6040 /* Allocate the argument vector. */
6043 obstack_init (&obstack
);
6045 /* Build multilib_select, et. al from the separate lines that make up each
6046 multilib selection. */
6048 const char *const *q
= multilib_raw
;
6051 obstack_init (&multilib_obstack
);
6052 while ((p
= *q
++) != (char *) 0)
6053 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6055 obstack_1grow (&multilib_obstack
, 0);
6056 multilib_select
= obstack_finish (&multilib_obstack
);
6058 q
= multilib_matches_raw
;
6059 while ((p
= *q
++) != (char *) 0)
6060 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6062 obstack_1grow (&multilib_obstack
, 0);
6063 multilib_matches
= obstack_finish (&multilib_obstack
);
6065 q
= multilib_exclusions_raw
;
6066 while ((p
= *q
++) != (char *) 0)
6067 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6069 obstack_1grow (&multilib_obstack
, 0);
6070 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6073 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6076 obstack_1grow (&multilib_obstack
, ' ');
6077 obstack_grow (&multilib_obstack
,
6078 multilib_defaults_raw
[i
],
6079 strlen (multilib_defaults_raw
[i
]));
6083 obstack_1grow (&multilib_obstack
, 0);
6084 multilib_defaults
= obstack_finish (&multilib_obstack
);
6087 /* Set up to remember the pathname of gcc and any options
6088 needed for collect. We use argv[0] instead of programname because
6089 we need the complete pathname. */
6090 obstack_init (&collect_obstack
);
6091 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6092 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6093 putenv (obstack_finish (&collect_obstack
));
6095 #ifdef INIT_ENVIRONMENT
6096 /* Set up any other necessary machine specific environment variables. */
6097 putenv (INIT_ENVIRONMENT
);
6100 /* Make a table of what switches there are (switches, n_switches).
6101 Make a table of specified input files (infiles, n_infiles).
6102 Decode switches that are handled locally. */
6104 process_command (argc
, argv
);
6106 /* Initialize the vector of specs to just the default.
6107 This means one element containing 0s, as a terminator. */
6109 compilers
= xmalloc (sizeof default_compilers
);
6110 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6111 n_compilers
= n_default_compilers
;
6113 /* Read specs from a file if there is one. */
6115 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6116 spec_version
, dir_separator_str
, NULL
);
6117 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6119 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6120 /* Read the specs file unless it is a default one. */
6121 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6122 read_specs (specs_file
, TRUE
);
6126 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6127 for any override of as, ld and libraries. */
6128 specs_file
= alloca (strlen (standard_exec_prefix
)
6129 + strlen (just_machine_suffix
) + sizeof ("specs"));
6131 strcpy (specs_file
, standard_exec_prefix
);
6132 strcat (specs_file
, just_machine_suffix
);
6133 strcat (specs_file
, "specs");
6134 if (access (specs_file
, R_OK
) == 0)
6135 read_specs (specs_file
, TRUE
);
6137 /* Process any configure-time defaults specified for the command line
6138 options, via OPTION_DEFAULT_SPECS. */
6139 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6140 do_option_spec (option_default_specs
[i
].name
,
6141 option_default_specs
[i
].spec
);
6143 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6144 of the command line. */
6146 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6147 do_self_spec (driver_self_specs
[i
]);
6149 /* If not cross-compiling, look for executables in the standard
6151 if (*cross_compile
== '0')
6153 if (*md_exec_prefix
)
6155 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6156 PREFIX_PRIORITY_LAST
, 0, 0);
6160 /* Process sysroot_suffix_spec. */
6161 if (*sysroot_suffix_spec
!= 0
6162 && do_spec_2 (sysroot_suffix_spec
) == 0)
6164 if (argbuf_index
> 1)
6165 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6166 else if (argbuf_index
== 1)
6167 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6170 /* Process sysroot_hdrs_suffix_spec. */
6171 if (*sysroot_hdrs_suffix_spec
!= 0
6172 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6174 if (argbuf_index
> 1)
6175 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6176 else if (argbuf_index
== 1)
6177 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6180 /* Look for startfiles in the standard places. */
6181 if (*startfile_prefix_spec
!= 0
6182 && do_spec_2 (startfile_prefix_spec
) == 0
6183 && do_spec_1 (" ", 0, NULL
) == 0)
6186 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6187 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6188 PREFIX_PRIORITY_LAST
, 0, 1);
6190 /* We should eventually get rid of all these and stick to
6191 startfile_prefix_spec exclusively. */
6192 else if (*cross_compile
== '0' || target_system_root
)
6194 if (*md_exec_prefix
)
6195 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6196 PREFIX_PRIORITY_LAST
, 0, 1);
6198 if (*md_startfile_prefix
)
6199 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6200 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6202 if (*md_startfile_prefix_1
)
6203 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6204 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6206 /* If standard_startfile_prefix is relative, base it on
6207 standard_exec_prefix. This lets us move the installed tree
6208 as a unit. If GCC_EXEC_PREFIX is defined, base
6209 standard_startfile_prefix on that as well.
6211 If the prefix is relative, only search it for native compilers;
6212 otherwise we will search a directory containing host libraries. */
6213 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6214 add_sysrooted_prefix (&startfile_prefixes
,
6215 standard_startfile_prefix
, "BINUTILS",
6216 PREFIX_PRIORITY_LAST
, 0, 1);
6217 else if (*cross_compile
== '0')
6219 if (gcc_exec_prefix
)
6220 add_prefix (&startfile_prefixes
,
6221 concat (gcc_exec_prefix
, machine_suffix
,
6222 standard_startfile_prefix
, NULL
),
6223 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6224 add_prefix (&startfile_prefixes
,
6225 concat (standard_exec_prefix
,
6227 standard_startfile_prefix
, NULL
),
6228 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6231 if (*standard_startfile_prefix_1
)
6232 add_sysrooted_prefix (&startfile_prefixes
,
6233 standard_startfile_prefix_1
, "BINUTILS",
6234 PREFIX_PRIORITY_LAST
, 0, 1);
6235 if (*standard_startfile_prefix_2
)
6236 add_sysrooted_prefix (&startfile_prefixes
,
6237 standard_startfile_prefix_2
, "BINUTILS",
6238 PREFIX_PRIORITY_LAST
, 0, 1);
6241 /* Process any user specified specs in the order given on the command
6243 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6245 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6247 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6250 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6251 if (gcc_exec_prefix
)
6252 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6253 spec_version
, dir_separator_str
, NULL
);
6255 /* Now we have the specs.
6256 Set the `valid' bits for switches that match anything in any spec. */
6258 validate_all_switches ();
6260 /* Now that we have the switches and the specs, set
6261 the subdirectory based on the options. */
6262 set_multilib_dir ();
6264 /* Warn about any switches that no pass was interested in. */
6266 for (i
= 0; (int) i
< n_switches
; i
++)
6267 if (! switches
[i
].validated
)
6268 error ("unrecognized option '-%s'", switches
[i
].part1
);
6270 /* Obey some of the options. */
6272 if (print_search_dirs
)
6274 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6275 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6276 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6280 if (print_file_name
)
6282 printf ("%s\n", find_file (print_file_name
));
6286 if (print_prog_name
)
6288 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6289 printf ("%s\n", (newname
? newname
: print_prog_name
));
6293 if (print_multi_lib
)
6295 print_multilib_info ();
6299 if (print_multi_directory
)
6301 if (multilib_dir
== NULL
)
6304 printf ("%s\n", multilib_dir
);
6308 if (print_multi_os_directory
)
6310 if (multilib_os_dir
== NULL
)
6313 printf ("%s\n", multilib_os_dir
);
6317 if (target_help_flag
)
6319 /* Print if any target specific options. */
6321 /* We do not exit here. Instead we have created a fake input file
6322 called 'target-dummy' which needs to be compiled, and we pass this
6323 on to the various sub-processes, along with the --target-help
6327 if (print_help_list
)
6333 printf (_("\nFor bug reporting instructions, please see:\n"));
6334 printf ("%s.\n", bug_report_url
);
6339 /* We do not exit here. Instead we have created a fake input file
6340 called 'help-dummy' which needs to be compiled, and we pass this
6341 on the various sub-processes, along with the --help switch. */
6349 notice ("Target: %s\n", spec_machine
);
6350 notice ("Configured with: %s\n", configuration_arguments
);
6352 #ifdef THREAD_MODEL_SPEC
6353 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6354 but there's no point in doing all this processing just to get
6355 thread_model back. */
6356 obstack_init (&obstack
);
6357 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6358 obstack_1grow (&obstack
, '\0');
6359 thrmod
= obstack_finish (&obstack
);
6361 thrmod
= thread_model
;
6364 notice ("Thread model: %s\n", thrmod
);
6366 /* compiler_version is truncated at the first space when initialized
6367 from version string, so truncate version_string at the first space
6368 before comparing. */
6369 for (n
= 0; version_string
[n
]; n
++)
6370 if (version_string
[n
] == ' ')
6373 if (! strncmp (version_string
, compiler_version
, n
)
6374 && compiler_version
[n
] == 0)
6375 notice ("gcc version %s\n", version_string
);
6377 notice ("gcc driver version %s executing gcc version %s\n",
6378 version_string
, compiler_version
);
6384 if (n_infiles
== added_libraries
)
6385 fatal ("no input files");
6387 /* Make a place to record the compiler output file names
6388 that correspond to the input files. */
6391 i
+= lang_specific_extra_outfiles
;
6392 outfiles
= xcalloc (i
, sizeof (char *));
6394 /* Record which files were specified explicitly as link input. */
6396 explicit_link_files
= xcalloc (1, n_infiles
);
6399 combine_inputs
= true;
6401 combine_inputs
= false;
6403 for (i
= 0; (int) i
< n_infiles
; i
++)
6405 const char *name
= infiles
[i
].name
;
6406 struct compiler
*compiler
= lookup_compiler (name
,
6408 infiles
[i
].language
);
6410 if (compiler
&& !(compiler
->combinable
))
6411 combine_inputs
= false;
6413 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6414 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6415 infiles
[i
].incompiler
= compiler
;
6419 input_file_compiler
= compiler
;
6420 infiles
[i
].incompiler
= compiler
;
6424 /* Since there is no compiler for this input file, assume it is a
6426 explicit_link_files
[i
] = 1;
6427 infiles
[i
].incompiler
= NULL
;
6429 infiles
[i
].compiled
= false;
6430 infiles
[i
].preprocessed
= false;
6433 if (combine_flag
&& save_temps_flag
)
6435 bool save_combine_inputs
= combine_inputs
;
6436 /* Must do a separate pre-processing pass for C & Objective-C files, to
6437 obtain individual .i files. */
6439 combine_inputs
= false;
6440 for (i
= 0; (int) i
< n_infiles
; i
++)
6442 int this_file_error
= 0;
6444 input_file_number
= i
;
6445 set_input (infiles
[i
].name
);
6446 if (infiles
[i
].incompiler
6447 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6448 input_file_compiler
= infiles
[i
].incompiler
;
6452 if (input_file_compiler
)
6454 if (input_file_compiler
->spec
[0] == '#')
6456 error ("%s: %s compiler not installed on this system",
6457 input_filename
, &input_file_compiler
->spec
[1]);
6458 this_file_error
= 1;
6462 value
= do_spec (input_file_compiler
->spec
);
6463 infiles
[i
].preprocessed
= true;
6464 if (!have_o_argbuf_index
)
6465 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6466 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6467 infiles
[i
].incompiler
6468 = lookup_compiler (infiles
[i
].name
,
6469 strlen (infiles
[i
].name
),
6470 infiles
[i
].language
);
6473 this_file_error
= 1;
6477 if (this_file_error
)
6479 delete_failure_queue ();
6483 clear_failure_queue ();
6485 combine_inputs
= save_combine_inputs
;
6488 for (i
= 0; (int) i
< n_infiles
; i
++)
6490 int this_file_error
= 0;
6492 /* Tell do_spec what to substitute for %i. */
6494 input_file_number
= i
;
6495 set_input (infiles
[i
].name
);
6497 if (infiles
[i
].compiled
)
6500 /* Use the same thing in %o, unless cp->spec says otherwise. */
6502 outfiles
[i
] = input_filename
;
6504 /* Figure out which compiler from the file's suffix. */
6506 if (! combine_inputs
)
6508 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6509 infiles
[i
].language
);
6511 input_file_compiler
= infiles
[i
].incompiler
;
6513 if (input_file_compiler
)
6515 /* Ok, we found an applicable compiler. Run its spec. */
6517 if (input_file_compiler
->spec
[0] == '#')
6519 error ("%s: %s compiler not installed on this system",
6520 input_filename
, &input_file_compiler
->spec
[1]);
6521 this_file_error
= 1;
6525 value
= do_spec (input_file_compiler
->spec
);
6526 infiles
[i
].compiled
= true;
6528 this_file_error
= 1;
6532 /* If this file's name does not contain a recognized suffix,
6533 record it as explicit linker input. */
6536 explicit_link_files
[i
] = 1;
6538 /* Clear the delete-on-failure queue, deleting the files in it
6539 if this compilation failed. */
6541 if (this_file_error
)
6543 delete_failure_queue ();
6546 /* If this compilation succeeded, don't delete those files later. */
6547 clear_failure_queue ();
6550 /* Reset the output file name to the first input file name, for use
6551 with %b in LINK_SPEC on a target that prefers not to emit a.out
6554 set_input (infiles
[0].name
);
6556 if (error_count
== 0)
6558 /* Make sure INPUT_FILE_NUMBER points to first available open
6560 input_file_number
= n_infiles
;
6561 if (lang_specific_pre_link ())
6565 /* Determine if there are any linker input files. */
6566 num_linker_inputs
= 0;
6567 for (i
= 0; (int) i
< n_infiles
; i
++)
6568 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6569 num_linker_inputs
++;
6571 /* Run ld to link all the compiler output files. */
6573 if (num_linker_inputs
> 0 && error_count
== 0)
6575 int tmp
= execution_count
;
6577 /* We'll use ld if we can't find collect2. */
6578 if (! strcmp (linker_name_spec
, "collect2"))
6580 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6582 linker_name_spec
= "ld";
6584 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6586 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6587 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6589 value
= do_spec (link_command_spec
);
6592 linker_was_run
= (tmp
!= execution_count
);
6595 /* If options said don't run linker,
6596 complain about input files to be given to the linker. */
6598 if (! linker_was_run
&& error_count
== 0)
6599 for (i
= 0; (int) i
< n_infiles
; i
++)
6600 if (explicit_link_files
[i
])
6601 error ("%s: linker input file unused because linking not done",
6604 /* Delete some or all of the temporary files we made. */
6607 delete_failure_queue ();
6608 delete_temp_files ();
6610 if (print_help_list
)
6612 printf (("\nFor bug reporting instructions, please see:\n"));
6613 printf ("%s\n", bug_report_url
);
6616 return (signal_count
!= 0 ? 2
6617 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6621 /* Find the proper compilation spec for the file name NAME,
6622 whose length is LENGTH. LANGUAGE is the specified language,
6623 or 0 if this file is to be passed to the linker. */
6625 static struct compiler
*
6626 lookup_compiler (const char *name
, size_t length
, const char *language
)
6628 struct compiler
*cp
;
6630 /* If this was specified by the user to be a linker input, indicate that. */
6631 if (language
!= 0 && language
[0] == '*')
6634 /* Otherwise, look for the language, if one is spec'd. */
6637 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6638 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6641 error ("language %s not recognized", language
);
6645 /* Look for a suffix. */
6646 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6648 if (/* The suffix `-' matches only the file name `-'. */
6649 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6650 || (strlen (cp
->suffix
) < length
6651 /* See if the suffix matches the end of NAME. */
6652 && !strcmp (cp
->suffix
,
6653 name
+ length
- strlen (cp
->suffix
))
6658 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6659 /* Look again, but case-insensitively this time. */
6661 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6663 if (/* The suffix `-' matches only the file name `-'. */
6664 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6665 || (strlen (cp
->suffix
) < length
6666 /* See if the suffix matches the end of NAME. */
6667 && ((!strcmp (cp
->suffix
,
6668 name
+ length
- strlen (cp
->suffix
))
6669 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6670 && !strcasecmp (cp
->suffix
,
6671 name
+ length
- strlen (cp
->suffix
)))
6677 if (cp
>= compilers
)
6679 if (cp
->spec
[0] != '@')
6680 /* A non-alias entry: return it. */
6683 /* An alias entry maps a suffix to a language.
6684 Search for the language; pass 0 for NAME and LENGTH
6685 to avoid infinite recursion if language not found. */
6686 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6692 save_string (const char *s
, int len
)
6694 char *result
= xmalloc (len
+ 1);
6696 memcpy (result
, s
, len
);
6702 pfatal_with_name (const char *name
)
6704 perror_with_name (name
);
6705 delete_temp_files ();
6710 perror_with_name (const char *name
)
6712 error ("%s: %s", name
, xstrerror (errno
));
6716 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6720 int save_errno
= errno
;
6722 /* Space for trailing '\0' is in %s. */
6723 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6724 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6730 pfatal_with_name (errmsg_fmt
);
6733 /* Output an error message and exit. */
6736 fancy_abort (const char *file
, int line
, const char *func
)
6738 fatal ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6741 /* Output an error message and exit. */
6744 fatal (const char *msgid
, ...)
6748 va_start (ap
, msgid
);
6750 fprintf (stderr
, "%s: ", programname
);
6751 vfprintf (stderr
, _(msgid
), ap
);
6753 fprintf (stderr
, "\n");
6754 delete_temp_files ();
6759 error (const char *msgid
, ...)
6763 va_start (ap
, msgid
);
6764 fprintf (stderr
, "%s: ", programname
);
6765 vfprintf (stderr
, _(msgid
), ap
);
6768 fprintf (stderr
, "\n");
6772 notice (const char *msgid
, ...)
6776 va_start (ap
, msgid
);
6777 vfprintf (stderr
, _(msgid
), ap
);
6782 validate_switches_from_spec (const char *spec
)
6784 const char *p
= spec
;
6787 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6788 /* We have a switch spec. */
6789 p
= validate_switches (p
+ 1);
6793 validate_all_switches (void)
6795 struct compiler
*comp
;
6796 struct spec_list
*spec
;
6798 for (comp
= compilers
; comp
->spec
; comp
++)
6799 validate_switches_from_spec (comp
->spec
);
6801 /* Look through the linked list of specs read from the specs file. */
6802 for (spec
= specs
; spec
; spec
= spec
->next
)
6803 validate_switches_from_spec (*spec
->ptr_spec
);
6805 validate_switches_from_spec (link_command_spec
);
6808 /* Look at the switch-name that comes after START
6809 and mark as valid all supplied switches that match it. */
6812 validate_switches (const char *start
)
6814 const char *p
= start
;
6818 bool suffix
= false;
6819 bool starred
= false;
6821 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6834 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6835 || *p
== ',' || *p
== '.' || *p
== '@')
6840 starred
= true, p
++;
6846 /* Mark all matching switches as valid. */
6847 for (i
= 0; i
< n_switches
; i
++)
6848 if (!strncmp (switches
[i
].part1
, atom
, len
)
6849 && (starred
|| switches
[i
].part1
[len
] == 0))
6850 switches
[i
].validated
= 1;
6854 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6857 if (*p
&& p
[-1] == ':')
6859 while (*p
&& *p
!= ';' && *p
!= '}')
6864 if (*p
== '{' || *p
== '<')
6865 p
= validate_switches (p
+1);
6866 else if (p
[0] == 'W' && p
[1] == '{')
6867 p
= validate_switches (p
+2);
6874 if (*p
&& p
[-1] == ';')
6888 static struct mdswitchstr
*mdswitches
;
6889 static int n_mdswitches
;
6891 /* Check whether a particular argument was used. The first time we
6892 canonicalize the switches to keep only the ones we care about. */
6895 used_arg (const char *p
, int len
)
6900 const char *replace
;
6905 static struct mswitchstr
*mswitches
;
6906 static int n_mswitches
;
6911 struct mswitchstr
*matches
;
6915 /* Break multilib_matches into the component strings of string
6916 and replacement string. */
6917 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6921 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6923 q
= multilib_matches
;
6932 fatal ("multilib spec '%s' is invalid", multilib_matches
);
6936 matches
[i
].len
= q
- matches
[i
].str
;
6938 matches
[i
].replace
= ++q
;
6939 while (*q
!= ';' && *q
!= '\0')
6942 goto invalid_matches
;
6945 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6951 /* Now build a list of the replacement string for switches that we care
6952 about. Make sure we allocate at least one entry. This prevents
6953 xmalloc from calling fatal, and prevents us from re-executing this
6956 = xmalloc (sizeof (struct mswitchstr
)
6957 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6958 for (i
= 0; i
< n_switches
; i
++)
6959 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6961 int xlen
= strlen (switches
[i
].part1
);
6962 for (j
= 0; j
< cnt
; j
++)
6963 if (xlen
== matches
[j
].len
6964 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6966 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6967 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6968 mswitches
[n_mswitches
].replace
= (char *) 0;
6969 mswitches
[n_mswitches
].rep_len
= 0;
6975 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6976 on the command line nor any options mutually incompatible with
6978 for (i
= 0; i
< n_mdswitches
; i
++)
6982 for (q
= multilib_options
; *q
!= '\0'; q
++)
6988 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6989 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6991 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6998 if (*q
!= ' ' && *q
!= '\0')
7000 while (*r
!= ' ' && *r
!= '\0')
7003 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7006 if (used_arg (r
, q
- r
))
7011 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7012 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7013 mswitches
[n_mswitches
].replace
= (char *) 0;
7014 mswitches
[n_mswitches
].rep_len
= 0;
7027 for (i
= 0; i
< n_mswitches
; i
++)
7028 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7035 default_arg (const char *p
, int len
)
7039 for (i
= 0; i
< n_mdswitches
; i
++)
7040 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7046 /* Work out the subdirectory to use based on the options. The format of
7047 multilib_select is a list of elements. Each element is a subdirectory
7048 name followed by a list of options followed by a semicolon. The format
7049 of multilib_exclusions is the same, but without the preceding
7050 directory. First gcc will check the exclusions, if none of the options
7051 beginning with an exclamation point are present, and all of the other
7052 options are present, then we will ignore this completely. Passing
7053 that, gcc will consider each multilib_select in turn using the same
7054 rules for matching the options. If a match is found, that subdirectory
7058 set_multilib_dir (void)
7061 unsigned int this_path_len
;
7062 const char *this_path
, *this_arg
;
7063 const char *start
, *end
;
7065 int ok
, ndfltok
, first
;
7068 start
= multilib_defaults
;
7069 while (*start
== ' ' || *start
== '\t')
7071 while (*start
!= '\0')
7074 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7076 while (*start
== ' ' || *start
== '\t')
7084 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7085 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7087 while (*start
== ' ' || *start
== '\t')
7093 for (end
= start
+ 1;
7094 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7097 obstack_grow (&multilib_obstack
, start
, end
- start
);
7098 obstack_1grow (&multilib_obstack
, 0);
7099 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7100 mdswitches
[i
++].len
= end
- start
;
7107 p
= multilib_exclusions
;
7110 /* Ignore newlines. */
7117 /* Check the arguments. */
7124 fatal ("multilib exclusions '%s' is invalid",
7125 multilib_exclusions
);
7135 while (*p
!= ' ' && *p
!= ';')
7138 goto invalid_exclusions
;
7142 if (*this_arg
!= '!')
7150 ok
= used_arg (this_arg
, p
- this_arg
);
7165 p
= multilib_select
;
7168 /* Ignore newlines. */
7175 /* Get the initial path. */
7182 fatal ("multilib select '%s' is invalid",
7187 this_path_len
= p
- this_path
;
7189 /* Check the arguments. */
7196 goto invalid_select
;
7205 while (*p
!= ' ' && *p
!= ';')
7208 goto invalid_select
;
7212 if (*this_arg
!= '!')
7220 /* If this is a default argument, we can just ignore it.
7221 This is true even if this_arg begins with '!'. Beginning
7222 with '!' does not mean that this argument is necessarily
7223 inappropriate for this library: it merely means that
7224 there is a more specific library which uses this
7225 argument. If this argument is a default, we need not
7226 consider that more specific library. */
7227 ok
= used_arg (this_arg
, p
- this_arg
);
7234 if (default_arg (this_arg
, p
- this_arg
))
7243 if (this_path_len
!= 1
7244 || this_path
[0] != '.')
7246 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7249 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7250 new_multilib_dir
[this_path_len
] = '\0';
7251 q
= strchr (new_multilib_dir
, ':');
7254 multilib_dir
= new_multilib_dir
;
7261 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7263 while (q
< end
&& *q
!= ':')
7267 char *new_multilib_os_dir
= xmalloc (end
- q
);
7268 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7269 new_multilib_os_dir
[end
- q
- 1] = '\0';
7270 multilib_os_dir
= new_multilib_os_dir
;
7278 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7279 && strcmp (multilib_os_dir
, ".") == 0)
7281 free ((char *) multilib_os_dir
);
7282 multilib_os_dir
= NULL
;
7284 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7285 multilib_os_dir
= multilib_dir
;
7288 /* Print out the multiple library subdirectory selection
7289 information. This prints out a series of lines. Each line looks
7290 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7291 required. Only the desired options are printed out, the negative
7292 matches. The options are print without a leading dash. There are
7293 no spaces to make it easy to use the information in the shell.
7294 Each subdirectory is printed only once. This assumes the ordering
7295 generated by the genmultilib script. Also, we leave out ones that match
7299 print_multilib_info (void)
7301 const char *p
= multilib_select
;
7302 const char *last_path
= 0, *this_path
;
7304 unsigned int last_path_len
= 0;
7309 /* Ignore newlines. */
7316 /* Get the initial path. */
7323 fatal ("multilib select '%s' is invalid", multilib_select
);
7329 /* When --disable-multilib was used but target defines
7330 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7331 to find multilib_os_dir, so skip them from output. */
7332 if (this_path
[0] == '.' && this_path
[1] == ':')
7335 /* Check for matches with the multilib_exclusions. We don't bother
7336 with the '!' in either list. If any of the exclusion rules match
7337 all of its options with the select rule, we skip it. */
7339 const char *e
= multilib_exclusions
;
7340 const char *this_arg
;
7345 /* Ignore newlines. */
7352 /* Check the arguments. */
7361 fatal ("multilib exclusion '%s' is invalid",
7362 multilib_exclusions
);
7373 while (*e
!= ' ' && *e
!= ';')
7376 goto invalid_exclusion
;
7384 int len
= e
- this_arg
;
7387 goto invalid_select
;
7391 while (*q
!= ' ' && *q
!= ';')
7394 goto invalid_select
;
7398 if (! strncmp (arg
, this_arg
,
7399 (len
< q
- arg
) ? q
- arg
: len
)
7400 || default_arg (this_arg
, e
- this_arg
))
7430 /* If this is a duplicate, skip it. */
7431 skip
= (last_path
!= 0
7432 && (unsigned int) (p
- this_path
) == last_path_len
7433 && ! strncmp (last_path
, this_path
, last_path_len
));
7435 last_path
= this_path
;
7436 last_path_len
= p
- this_path
;
7439 /* If this directory requires any default arguments, we can skip
7440 it. We will already have printed a directory identical to
7441 this one which does not require that default argument. */
7452 goto invalid_select
;
7459 while (*q
!= ' ' && *q
!= ';')
7462 goto invalid_select
;
7467 && default_arg (arg
, q
- arg
))
7482 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7493 goto invalid_select
;
7501 use_arg
= *p
!= '!';
7506 while (*p
!= ' ' && *p
!= ';')
7509 goto invalid_select
;
7521 /* If there are extra options, print them now. */
7522 if (multilib_extra
&& *multilib_extra
)
7524 int print_at
= TRUE
;
7527 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7548 /* if-exists built-in spec function.
7550 Checks to see if the file specified by the absolute pathname in
7551 ARGS exists. Returns that pathname if found.
7553 The usual use for this function is to check for a library file
7554 (whose name has been expanded with %s). */
7557 if_exists_spec_function (int argc
, const char **argv
)
7559 /* Must have only one argument. */
7560 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7566 /* if-exists-else built-in spec function.
7568 This is like if-exists, but takes an additional argument which
7569 is returned if the first argument does not exist. */
7572 if_exists_else_spec_function (int argc
, const char **argv
)
7574 /* Must have exactly two arguments. */
7578 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7584 /* replace-outfile built-in spec function.
7585 This looks for the first argument in the outfiles array's name and replaces it
7586 with the second argument. */
7589 replace_outfile_spec_function (int argc
, const char **argv
)
7592 /* Must have exactly two arguments. */
7596 for (i
= 0; i
< n_infiles
; i
++)
7598 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7599 outfiles
[i
] = xstrdup (argv
[1]);