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, 2006 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 "[.0-9A-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_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 /* Generate -L options for startfile prefix list. */
710 # define LINK_LIBGCC_SPEC "%D"
713 #ifndef STARTFILE_PREFIX_SPEC
714 # define STARTFILE_PREFIX_SPEC ""
717 #ifndef SYSROOT_SUFFIX_SPEC
718 # define SYSROOT_SUFFIX_SPEC ""
721 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
722 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
725 static const char *asm_debug
;
726 static const char *cpp_spec
= CPP_SPEC
;
727 static const char *cc1_spec
= CC1_SPEC
;
728 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
729 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
730 static const char *asm_spec
= ASM_SPEC
;
731 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
732 static const char *link_spec
= LINK_SPEC
;
733 static const char *lib_spec
= LIB_SPEC
;
734 static const char *mfwrap_spec
= MFWRAP_SPEC
;
735 static const char *mflib_spec
= MFLIB_SPEC
;
736 static const char *libgcc_spec
= LIBGCC_SPEC
;
737 static const char *endfile_spec
= ENDFILE_SPEC
;
738 static const char *startfile_spec
= STARTFILE_SPEC
;
739 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
740 static const char *linker_name_spec
= LINKER_NAME
;
741 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
742 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
743 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
744 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
745 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
747 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
748 There should be no need to override these in target dependent files,
749 but we need to copy them to the specs file so that newer versions
750 of the GCC driver can correctly drive older tool chains with the
751 appropriate -B options. */
753 /* When cpplib handles traditional preprocessing, get rid of this, and
754 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
755 that we default the front end language better. */
756 static const char *trad_capable_cpp
=
757 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
759 /* We don't wrap .d files in %W{} since a missing .d file, and
760 therefore no dependency entry, confuses make into thinking a .o
761 file that happens to exist is up-to-date. */
762 static const char *cpp_unique_options
=
763 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
764 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
765 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
766 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
767 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
768 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
769 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
770 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
771 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
774 /* This contains cpp options which are common with cc1_options and are passed
775 only when preprocessing only to avoid duplication. We pass the cc1 spec
776 options to the preprocessor so that it the cc1 spec may manipulate
777 options used to set target flags. Those special target flags settings may
778 in turn cause preprocessor symbols to be defined specially. */
779 static const char *cpp_options
=
780 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
781 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
782 %{undef} %{save-temps:-fpch-preprocess}";
784 /* This contains cpp options which are not passed when the preprocessor
785 output will be used by another program. */
786 static const char *cpp_debug_options
= "%{d*}";
788 /* NB: This is shared amongst all front-ends. */
789 static const char *cc1_options
=
790 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
791 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
792 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
793 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
794 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
795 %{Qn:-fno-ident} %{--help:--help}\
796 %{--target-help:--target-help}\
797 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
798 %{fsyntax-only:-o %j} %{-param*}\
799 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}";
801 static const char *asm_options
=
802 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
804 static const char *invoke_as
=
805 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
806 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
808 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
811 /* Some compilers have limits on line lengths, and the multilib_select
812 and/or multilib_matches strings can be very long, so we build them at
814 static struct obstack multilib_obstack
;
815 static const char *multilib_select
;
816 static const char *multilib_matches
;
817 static const char *multilib_defaults
;
818 static const char *multilib_exclusions
;
820 /* Check whether a particular argument is a default argument. */
822 #ifndef MULTILIB_DEFAULTS
823 #define MULTILIB_DEFAULTS { "" }
826 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
828 #ifndef DRIVER_SELF_SPECS
829 #define DRIVER_SELF_SPECS ""
832 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
834 #ifndef OPTION_DEFAULT_SPECS
835 #define OPTION_DEFAULT_SPECS { "", "" }
844 static const struct default_spec
845 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
849 struct user_specs
*next
;
850 const char *filename
;
853 static struct user_specs
*user_specs_head
, *user_specs_tail
;
855 #ifndef SWITCH_TAKES_ARG
856 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
859 #ifndef WORD_SWITCH_TAKES_ARG
860 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
863 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
864 /* This defines which switches stop a full compilation. */
865 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
866 ((CHAR) == 'c' || (CHAR) == 'S')
868 #ifndef SWITCH_CURTAILS_COMPILATION
869 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
870 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
874 /* Record the mapping from file suffixes for compilation specs. */
878 const char *suffix
; /* Use this compiler for input files
879 whose names end in this suffix. */
881 const char *spec
; /* To use this compiler, run this spec. */
883 const char *cpp_spec
; /* If non-NULL, substitute this spec
884 for `%C', rather than the usual
886 const int combinable
; /* If nonzero, compiler can deal with
887 multiple source files at once (IMA). */
888 const int needs_preprocessing
; /* If nonzero, source files need to
889 be run through a preprocessor. */
892 /* Pointer to a vector of `struct compiler' that gives the spec for
893 compiling a file, based on its suffix.
894 A file that does not end in any of these suffixes will be passed
895 unchanged to the loader and nothing else will be done to it.
897 An entry containing two 0s is used to terminate the vector.
899 If multiple entries match a file, the last matching one is used. */
901 static struct compiler
*compilers
;
903 /* Number of entries in `compilers', not counting the null terminator. */
905 static int n_compilers
;
907 /* The default list of file name suffixes and their compilation specs. */
909 static const struct compiler default_compilers
[] =
911 /* Add lists of suffixes of known languages here. If those languages
912 were not present when we built the driver, we will hit these copies
913 and be given a more meaningful error than "file not used since
914 linking is not done". */
915 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
916 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
917 {".mii", "#Objective-C++", 0, 0, 0},
918 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
919 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
920 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
921 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
922 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
923 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
924 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
925 {".FPP", "#Fortran", 0, 0, 0},
926 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
927 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
928 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
929 {".r", "#Ratfor", 0, 0, 0},
930 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
931 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
932 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
933 /* Next come the entries for C. */
934 {".c", "@c", 0, 1, 1},
936 /* cc1 has an integrated ISO C preprocessor. We should invoke the
937 external preprocessor if -save-temps is given. */
938 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
940 %{traditional|ftraditional:\
941 %eGNU C no longer supports -traditional without -E}\
943 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
944 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
945 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
947 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
948 cc1 %(cpp_unique_options) %(cc1_options)}}}\
949 %{!fsyntax-only:%(invoke_as)}} \
951 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
952 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
953 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
954 cc1 %(cpp_unique_options) %(cc1_options)}}\
955 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
957 "%{!E:%e-E or -x required when input is from standard input}\
958 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
959 {".h", "@c-header", 0, 0, 0},
961 /* cc1 has an integrated ISO C preprocessor. We should invoke the
962 external preprocessor if -save-temps is given. */
963 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
965 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
966 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
967 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
969 -o %g.s %{!o*:--output-pch=%i.gch}\
970 %W{o*:--output-pch=%*}%V}\
971 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
972 cc1 %(cpp_unique_options) %(cc1_options)\
973 -o %g.s %{!o*:--output-pch=%i.gch}\
974 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
975 {".i", "@cpp-output", 0, 1, 0},
977 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
978 {".s", "@assembler", 0, 1, 0},
980 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
981 {".S", "@assembler-with-cpp", 0, 1, 0},
982 {"@assembler-with-cpp",
983 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
984 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
985 %{E|M|MM:%(cpp_debug_options)}\
986 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
987 as %(asm_debug) %(asm_options) %|.s %A }}}}"
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) %m.s %A }}}}"
997 /* Mark end of table. */
1001 /* Number of elements in default_compilers, not counting the terminator. */
1003 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1005 /* A vector of options to give to the linker.
1006 These options are accumulated by %x,
1007 and substituted into the linker command with %X. */
1008 static int n_linker_options
;
1009 static char **linker_options
;
1011 /* A vector of options to give to the assembler.
1012 These options are accumulated by -Wa,
1013 and substituted into the assembler command with %Y. */
1014 static int n_assembler_options
;
1015 static char **assembler_options
;
1017 /* A vector of options to give to the preprocessor.
1018 These options are accumulated by -Wp,
1019 and substituted into the preprocessor command with %Z. */
1020 static int n_preprocessor_options
;
1021 static char **preprocessor_options
;
1023 /* Define how to map long options into short ones. */
1025 /* This structure describes one mapping. */
1028 /* The long option's name. */
1029 const char *const name
;
1030 /* The equivalent short option. */
1031 const char *const equivalent
;
1032 /* Argument info. A string of flag chars; NULL equals no options.
1033 a => argument required.
1034 o => argument optional.
1035 j => join argument to equivalent, making one word.
1036 * => require other text after NAME as an argument. */
1037 const char *const arg_info
;
1040 /* This is the table of mappings. Mappings are tried sequentially
1041 for each option encountered; the first one that matches, wins. */
1043 static const struct option_map option_map
[] =
1045 {"--all-warnings", "-Wall", 0},
1046 {"--ansi", "-ansi", 0},
1047 {"--assemble", "-S", 0},
1048 {"--assert", "-A", "a"},
1049 {"--classpath", "-fclasspath=", "aj"},
1050 {"--bootclasspath", "-fbootclasspath=", "aj"},
1051 {"--CLASSPATH", "-fclasspath=", "aj"},
1052 {"--combine", "-combine", 0},
1053 {"--comments", "-C", 0},
1054 {"--comments-in-macros", "-CC", 0},
1055 {"--compile", "-c", 0},
1056 {"--debug", "-g", "oj"},
1057 {"--define-macro", "-D", "aj"},
1058 {"--dependencies", "-M", 0},
1059 {"--dump", "-d", "a"},
1060 {"--dumpbase", "-dumpbase", "a"},
1061 {"--encoding", "-fencoding=", "aj"},
1062 {"--entry", "-e", 0},
1063 {"--extra-warnings", "-W", 0},
1064 {"--extdirs", "-fextdirs=", "aj"},
1065 {"--for-assembler", "-Wa", "a"},
1066 {"--for-linker", "-Xlinker", "a"},
1067 {"--force-link", "-u", "a"},
1068 {"--imacros", "-imacros", "a"},
1069 {"--include", "-include", "a"},
1070 {"--include-barrier", "-I-", 0},
1071 {"--include-directory", "-I", "aj"},
1072 {"--include-directory-after", "-idirafter", "a"},
1073 {"--include-prefix", "-iprefix", "a"},
1074 {"--include-with-prefix", "-iwithprefix", "a"},
1075 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1076 {"--include-with-prefix-after", "-iwithprefix", "a"},
1077 {"--language", "-x", "a"},
1078 {"--library-directory", "-L", "a"},
1079 {"--machine", "-m", "aj"},
1080 {"--machine-", "-m", "*j"},
1081 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1082 {"--no-line-commands", "-P", 0},
1083 {"--no-precompiled-includes", "-noprecomp", 0},
1084 {"--no-standard-includes", "-nostdinc", 0},
1085 {"--no-standard-libraries", "-nostdlib", 0},
1086 {"--no-warnings", "-w", 0},
1087 {"--optimize", "-O", "oj"},
1088 {"--output", "-o", "a"},
1089 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1090 {"--param", "--param", "a"},
1091 {"--pass-exit-codes", "-pass-exit-codes", 0},
1092 {"--pedantic", "-pedantic", 0},
1093 {"--pedantic-errors", "-pedantic-errors", 0},
1094 {"--pie", "-pie", 0},
1095 {"--pipe", "-pipe", 0},
1096 {"--prefix", "-B", "a"},
1097 {"--preprocess", "-E", 0},
1098 {"--print-search-dirs", "-print-search-dirs", 0},
1099 {"--print-file-name", "-print-file-name=", "aj"},
1100 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1101 {"--print-missing-file-dependencies", "-MG", 0},
1102 {"--print-multi-lib", "-print-multi-lib", 0},
1103 {"--print-multi-directory", "-print-multi-directory", 0},
1104 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1105 {"--print-prog-name", "-print-prog-name=", "aj"},
1106 {"--profile", "-p", 0},
1107 {"--profile-blocks", "-a", 0},
1108 {"--quiet", "-q", 0},
1109 {"--resource", "-fcompile-resource=", "aj"},
1110 {"--save-temps", "-save-temps", 0},
1111 {"--shared", "-shared", 0},
1112 {"--silent", "-q", 0},
1113 {"--specs", "-specs=", "aj"},
1114 {"--static", "-static", 0},
1115 {"--std", "-std=", "aj"},
1116 {"--symbolic", "-symbolic", 0},
1117 {"--time", "-time", 0},
1118 {"--trace-includes", "-H", 0},
1119 {"--traditional", "-traditional", 0},
1120 {"--traditional-cpp", "-traditional-cpp", 0},
1121 {"--trigraphs", "-trigraphs", 0},
1122 {"--undefine-macro", "-U", "aj"},
1123 {"--user-dependencies", "-MM", 0},
1124 {"--verbose", "-v", 0},
1125 {"--warn-", "-W", "*j"},
1126 {"--write-dependencies", "-MD", 0},
1127 {"--write-user-dependencies", "-MMD", 0},
1132 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1133 static const struct {
1134 const char *const option_found
;
1135 const char *const replacements
;
1136 } target_option_translations
[] =
1138 TARGET_OPTION_TRANSLATE_TABLE
,
1143 /* Translate the options described by *ARGCP and *ARGVP.
1144 Make a new vector and store it back in *ARGVP,
1145 and store its length in *ARGVC. */
1148 translate_options (int *argcp
, const char *const **argvp
)
1152 const char *const *argv
= *argvp
;
1153 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1154 const char **newv
= xmalloc (newvsize
);
1158 newv
[newindex
++] = argv
[i
++];
1162 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1166 target_option_translations
[tott_idx
].option_found
;
1169 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1176 for (sp
= target_option_translations
[tott_idx
].replacements
;
1183 newvsize
+= spaces
* sizeof (const char *);
1184 newv
= xrealloc (newv
, newvsize
);
1186 sp
= target_option_translations
[tott_idx
].replacements
;
1195 newv
[newindex
++] = np
;
1196 while (*np
!= ' ' && *np
)
1207 if (target_option_translations
[tott_idx
].option_found
)
1211 /* Translate -- options. */
1212 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1215 /* Find a mapping that applies to this option. */
1216 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1218 size_t optlen
= strlen (option_map
[j
].name
);
1219 size_t arglen
= strlen (argv
[i
]);
1220 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1221 const char *arginfo
= option_map
[j
].arg_info
;
1226 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1228 const char *arg
= 0;
1230 if (arglen
< optlen
)
1233 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1234 if (strlen (option_map
[k
].name
) >= arglen
1235 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1237 error ("ambiguous abbreviation %s", argv
[i
]);
1241 if (k
!= ARRAY_SIZE (option_map
))
1245 if (arglen
> optlen
)
1247 /* If the option has an argument, accept that. */
1248 if (argv
[i
][optlen
] == '=')
1249 arg
= argv
[i
] + optlen
+ 1;
1251 /* If this mapping requires extra text at end of name,
1252 accept that as "argument". */
1253 else if (strchr (arginfo
, '*') != 0)
1254 arg
= argv
[i
] + optlen
;
1256 /* Otherwise, extra text at end means mismatch.
1257 Try other mappings. */
1262 else if (strchr (arginfo
, '*') != 0)
1264 error ("incomplete '%s' option", option_map
[j
].name
);
1268 /* Handle arguments. */
1269 if (strchr (arginfo
, 'a') != 0)
1275 error ("missing argument to '%s' option",
1276 option_map
[j
].name
);
1283 else if (strchr (arginfo
, '*') != 0)
1285 else if (strchr (arginfo
, 'o') == 0)
1288 error ("extraneous argument to '%s' option",
1289 option_map
[j
].name
);
1293 /* Store the translation as one argv elt or as two. */
1294 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1295 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1299 newv
[newindex
++] = option_map
[j
].equivalent
;
1300 newv
[newindex
++] = arg
;
1303 newv
[newindex
++] = option_map
[j
].equivalent
;
1311 /* Handle old-fashioned options--just copy them through,
1312 with their arguments. */
1313 else if (argv
[i
][0] == '-')
1315 const char *p
= argv
[i
] + 1;
1319 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1320 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1321 else if (WORD_SWITCH_TAKES_ARG (p
))
1322 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1323 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1326 else if (! strcmp (p
, "Xlinker"))
1328 else if (! strcmp (p
, "Xpreprocessor"))
1330 else if (! strcmp (p
, "Xassembler"))
1333 /* Watch out for an option at the end of the command line that
1334 is missing arguments, and avoid skipping past the end of the
1336 if (nskip
+ i
> argc
)
1341 newv
[newindex
++] = argv
[i
++];
1346 /* Ordinary operands, or +e options. */
1347 newv
[newindex
++] = argv
[i
++];
1357 skip_whitespace (char *p
)
1361 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1362 be considered whitespace. */
1363 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1365 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1379 /* Structures to keep track of prefixes to try when looking for files. */
1383 const char *prefix
; /* String to prepend to the path. */
1384 struct prefix_list
*next
; /* Next in linked list. */
1385 int require_machine_suffix
; /* Don't use without machine_suffix. */
1386 /* 2 means try both machine_suffix and just_machine_suffix. */
1387 int priority
; /* Sort key - priority within list. */
1388 int os_multilib
; /* 1 if OS multilib scheme should be used,
1389 0 for GCC multilib scheme. */
1394 struct prefix_list
*plist
; /* List of prefixes to try */
1395 int max_len
; /* Max length of a prefix in PLIST */
1396 const char *name
; /* Name of this list (used in config stuff) */
1399 /* List of prefixes to try when looking for executables. */
1401 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1403 /* List of prefixes to try when looking for startup (crt0) files. */
1405 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1407 /* List of prefixes to try when looking for include files. */
1409 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1411 /* Suffix to attach to directories searched for commands.
1412 This looks like `MACHINE/VERSION/'. */
1414 static const char *machine_suffix
= 0;
1416 /* Suffix to attach to directories searched for commands.
1417 This is just `MACHINE/'. */
1419 static const char *just_machine_suffix
= 0;
1421 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1423 static const char *gcc_exec_prefix
;
1425 /* Adjusted value of standard_libexec_prefix. */
1427 static const char *gcc_libexec_prefix
;
1429 /* Default prefixes to attach to command names. */
1431 #ifndef STANDARD_STARTFILE_PREFIX_1
1432 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1434 #ifndef STANDARD_STARTFILE_PREFIX_2
1435 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1438 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1439 #undef MD_EXEC_PREFIX
1440 #undef MD_STARTFILE_PREFIX
1441 #undef MD_STARTFILE_PREFIX_1
1444 /* If no prefixes defined, use the null string, which will disable them. */
1445 #ifndef MD_EXEC_PREFIX
1446 #define MD_EXEC_PREFIX ""
1448 #ifndef MD_STARTFILE_PREFIX
1449 #define MD_STARTFILE_PREFIX ""
1451 #ifndef MD_STARTFILE_PREFIX_1
1452 #define MD_STARTFILE_PREFIX_1 ""
1455 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1456 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1457 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1458 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1460 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1461 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1462 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1463 static const char *const standard_startfile_prefix_1
1464 = STANDARD_STARTFILE_PREFIX_1
;
1465 static const char *const standard_startfile_prefix_2
1466 = STANDARD_STARTFILE_PREFIX_2
;
1468 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1469 static const char *tooldir_prefix
;
1471 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1473 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1475 /* Subdirectory to use for locating libraries. Set by
1476 set_multilib_dir based on the compilation options. */
1478 static const char *multilib_dir
;
1480 /* Subdirectory to use for locating libraries in OS conventions. Set by
1481 set_multilib_dir based on the compilation options. */
1483 static const char *multilib_os_dir
;
1485 /* Structure to keep track of the specs that have been defined so far.
1486 These are accessed using %(specname) or %[specname] in a compiler
1491 /* The following 2 fields must be first */
1492 /* to allow EXTRA_SPECS to be initialized */
1493 const char *name
; /* name of the spec. */
1494 const char *ptr
; /* available ptr if no static pointer */
1496 /* The following fields are not initialized */
1497 /* by EXTRA_SPECS */
1498 const char **ptr_spec
; /* pointer to the spec itself. */
1499 struct spec_list
*next
; /* Next spec in linked list. */
1500 int name_len
; /* length of the name */
1501 int alloc_p
; /* whether string was allocated */
1504 #define INIT_STATIC_SPEC(NAME,PTR) \
1505 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1507 /* List of statically defined specs. */
1508 static struct spec_list static_specs
[] =
1510 INIT_STATIC_SPEC ("asm", &asm_spec
),
1511 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1512 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1513 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1514 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1515 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1516 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1517 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1518 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1519 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1520 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1521 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1522 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1523 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1524 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1525 INIT_STATIC_SPEC ("link", &link_spec
),
1526 INIT_STATIC_SPEC ("lib", &lib_spec
),
1527 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1528 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1529 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1530 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1531 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1532 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1533 INIT_STATIC_SPEC ("version", &compiler_version
),
1534 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1535 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1536 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1537 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1538 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1539 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1540 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1541 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1542 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1543 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1544 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1545 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1546 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1547 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1550 #ifdef EXTRA_SPECS /* additional specs needed */
1551 /* Structure to keep track of just the first two args of a spec_list.
1552 That is all that the EXTRA_SPECS macro gives us. */
1555 const char *const name
;
1556 const char *const ptr
;
1559 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1560 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1563 /* List of dynamically allocates specs that have been defined so far. */
1565 static struct spec_list
*specs
= (struct spec_list
*) 0;
1567 /* List of static spec functions. */
1569 static const struct spec_function static_spec_functions
[] =
1571 { "if-exists", if_exists_spec_function
},
1572 { "if-exists-else", if_exists_else_spec_function
},
1573 { "replace-outfile", replace_outfile_spec_function
},
1577 static int processing_spec_function
;
1579 /* Add appropriate libgcc specs to OBSTACK, taking into account
1580 various permutations of -shared-libgcc, -shared, and such. */
1582 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1584 #ifndef USE_LD_AS_NEEDED
1585 #define USE_LD_AS_NEEDED 0
1589 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1590 const char *static_name
, const char *eh_name
)
1594 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1595 "}%{!static:%{!static-libgcc:",
1596 #if USE_LD_AS_NEEDED
1597 "%{!shared-libgcc:", static_name
,
1598 " --as-needed ", shared_name
, " --no-as-needed}"
1599 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1602 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1603 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1604 static_name
, "}}%{shared:",
1606 "%{shared-libgcc:", shared_name
,
1607 "}%{!shared-libgcc:", static_name
, "}",
1614 obstack_grow (obstack
, buf
, strlen (buf
));
1617 #endif /* ENABLE_SHARED_LIBGCC */
1619 /* Initialize the specs lookup routines. */
1624 struct spec_list
*next
= (struct spec_list
*) 0;
1625 struct spec_list
*sl
= (struct spec_list
*) 0;
1629 return; /* Already initialized. */
1632 notice ("Using built-in specs.\n");
1635 extra_specs
= xcalloc (sizeof (struct spec_list
),
1636 ARRAY_SIZE (extra_specs_1
));
1638 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1640 sl
= &extra_specs
[i
];
1641 sl
->name
= extra_specs_1
[i
].name
;
1642 sl
->ptr
= extra_specs_1
[i
].ptr
;
1644 sl
->name_len
= strlen (sl
->name
);
1645 sl
->ptr_spec
= &sl
->ptr
;
1650 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1651 on ?: in file-scope variable initializations. */
1652 asm_debug
= ASM_DEBUG_SPEC
;
1654 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1656 sl
= &static_specs
[i
];
1661 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1662 /* ??? If neither -shared-libgcc nor --static-libgcc was
1663 seen, then we should be making an educated guess. Some proposed
1664 heuristics for ELF include:
1666 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1667 program will be doing dynamic loading, which will likely
1668 need the shared libgcc.
1670 (2) If "-ldl", then it's also a fair bet that we're doing
1673 (3) For each ET_DYN we're linking against (either through -lfoo
1674 or /some/path/foo.so), check to see whether it or one of
1675 its dependencies depends on a shared libgcc.
1679 If the runtime is fixed to look for program headers instead
1680 of calling __register_frame_info at all, for each object,
1681 use the shared libgcc if any EH symbol referenced.
1683 If crtstuff is fixed to not invoke __register_frame_info
1684 automatically, for each object, use the shared libgcc if
1685 any non-empty unwind section found.
1687 Doing any of this probably requires invoking an external program to
1688 do the actual object file scanning. */
1690 const char *p
= libgcc_spec
;
1693 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1694 when given the proper command line arguments. */
1697 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1699 init_gcc_specs (&obstack
,
1701 #ifdef USE_LIBUNWIND_EXCEPTIONS
1707 #ifdef USE_LIBUNWIND_EXCEPTIONS
1708 # ifdef HAVE_LD_STATIC_DYNAMIC
1709 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1719 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1721 /* Ug. We don't know shared library extensions. Hope that
1722 systems that use this form don't do shared libraries. */
1723 init_gcc_specs (&obstack
,
1727 #ifdef USE_LIBUNWIND_EXCEPTIONS
1736 obstack_1grow (&obstack
, *p
);
1737 in_sep
= (*p
== ' ');
1742 obstack_1grow (&obstack
, '\0');
1743 libgcc_spec
= obstack_finish (&obstack
);
1746 #ifdef USE_AS_TRADITIONAL_FORMAT
1747 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1749 static const char tf
[] = "--traditional-format ";
1750 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1751 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1752 asm_spec
= obstack_finish (&obstack
);
1756 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1757 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1758 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1759 link_spec
= obstack_finish (&obstack
);
1765 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1766 removed; If the spec starts with a + then SPEC is added to the end of the
1770 set_spec (const char *name
, const char *spec
)
1772 struct spec_list
*sl
;
1773 const char *old_spec
;
1774 int name_len
= strlen (name
);
1777 /* If this is the first call, initialize the statically allocated specs. */
1780 struct spec_list
*next
= (struct spec_list
*) 0;
1781 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1783 sl
= &static_specs
[i
];
1790 /* See if the spec already exists. */
1791 for (sl
= specs
; sl
; sl
= sl
->next
)
1792 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1797 /* Not found - make it. */
1798 sl
= xmalloc (sizeof (struct spec_list
));
1799 sl
->name
= xstrdup (name
);
1800 sl
->name_len
= name_len
;
1801 sl
->ptr_spec
= &sl
->ptr
;
1803 *(sl
->ptr_spec
) = "";
1808 old_spec
= *(sl
->ptr_spec
);
1809 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1810 ? concat (old_spec
, spec
+ 1, NULL
)
1815 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1818 /* Free the old spec. */
1819 if (old_spec
&& sl
->alloc_p
)
1820 free ((void *) old_spec
);
1825 /* Accumulate a command (program name and args), and run it. */
1827 /* Vector of pointers to arguments in the current line of specifications. */
1829 static const char **argbuf
;
1831 /* Number of elements allocated in argbuf. */
1833 static int argbuf_length
;
1835 /* Number of elements in argbuf currently in use (containing args). */
1837 static int argbuf_index
;
1839 /* Position in the argbuf array containing the name of the output file
1840 (the value associated with the "-o" flag). */
1842 static int have_o_argbuf_index
= 0;
1844 /* Were the options -c or -S passed. */
1845 static int have_c
= 0;
1847 /* Was the option -o passed. */
1848 static int have_o
= 0;
1850 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1851 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1854 static struct temp_name
{
1855 const char *suffix
; /* suffix associated with the code. */
1856 int length
; /* strlen (suffix). */
1857 int unique
; /* Indicates whether %g or %u/%U was used. */
1858 const char *filename
; /* associated filename. */
1859 int filename_length
; /* strlen (filename). */
1860 struct temp_name
*next
;
1863 /* Number of commands executed so far. */
1865 static int execution_count
;
1867 /* Number of commands that exited with a signal. */
1869 static int signal_count
;
1871 /* Name with which this program was invoked. */
1873 static const char *programname
;
1875 /* Allocate the argument vector. */
1881 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1884 /* Clear out the vector of arguments (after a command is executed). */
1892 /* Add one argument to the vector at the end.
1893 This is done when a space is seen or at the end of the line.
1894 If DELETE_ALWAYS is nonzero, the arg is a filename
1895 and the file should be deleted eventually.
1896 If DELETE_FAILURE is nonzero, the arg is a filename
1897 and the file should be deleted if this compilation fails. */
1900 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1902 if (argbuf_index
+ 1 == argbuf_length
)
1903 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1905 argbuf
[argbuf_index
++] = arg
;
1906 argbuf
[argbuf_index
] = 0;
1908 if (strcmp (arg
, "-o") == 0)
1909 have_o_argbuf_index
= argbuf_index
;
1910 if (delete_always
|| delete_failure
)
1911 record_temp_file (arg
, delete_always
, delete_failure
);
1914 /* Load specs from a file name named FILENAME, replacing occurrences of
1915 various different types of line-endings, \r\n, \n\r and just \r, with
1919 load_specs (const char *filename
)
1923 struct stat statbuf
;
1930 notice ("Reading specs from %s\n", filename
);
1932 /* Open and stat the file. */
1933 desc
= open (filename
, O_RDONLY
, 0);
1935 pfatal_with_name (filename
);
1936 if (stat (filename
, &statbuf
) < 0)
1937 pfatal_with_name (filename
);
1939 /* Read contents of file into BUFFER. */
1940 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1941 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1943 pfatal_with_name (filename
);
1944 buffer
[readlen
] = 0;
1947 specs
= xmalloc (readlen
+ 1);
1949 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1955 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1957 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1971 /* Read compilation specs from a file named FILENAME,
1972 replacing the default ones.
1974 A suffix which starts with `*' is a definition for
1975 one of the machine-specific sub-specs. The "suffix" should be
1976 *asm, *cc1, *cpp, *link, *startfile, etc.
1977 The corresponding spec is stored in asm_spec, etc.,
1978 rather than in the `compilers' vector.
1980 Anything invalid in the file is a fatal error. */
1983 read_specs (const char *filename
, int main_p
)
1988 buffer
= load_specs (filename
);
1990 /* Scan BUFFER for specs, putting them in the vector. */
1996 char *in
, *out
, *p1
, *p2
, *p3
;
1998 /* Advance P in BUFFER to the next nonblank nocomment line. */
1999 p
= skip_whitespace (p
);
2003 /* Is this a special command that starts with '%'? */
2004 /* Don't allow this for the main specs file, since it would
2005 encourage people to overwrite it. */
2006 if (*p
== '%' && !main_p
)
2009 while (*p
&& *p
!= '\n')
2015 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2016 && (p1
[sizeof "%include" - 1] == ' '
2017 || p1
[sizeof "%include" - 1] == '\t'))
2021 p1
+= sizeof ("%include");
2022 while (*p1
== ' ' || *p1
== '\t')
2025 if (*p1
++ != '<' || p
[-2] != '>')
2026 fatal ("specs %%include syntax malformed after %ld characters",
2027 (long) (p1
- buffer
+ 1));
2030 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2031 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2034 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2035 && (p1
[sizeof "%include_noerr" - 1] == ' '
2036 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2040 p1
+= sizeof "%include_noerr";
2041 while (*p1
== ' ' || *p1
== '\t')
2044 if (*p1
++ != '<' || p
[-2] != '>')
2045 fatal ("specs %%include syntax malformed after %ld characters",
2046 (long) (p1
- buffer
+ 1));
2049 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2051 read_specs (new_filename
, FALSE
);
2052 else if (verbose_flag
)
2053 notice ("could not find specs file %s\n", p1
);
2056 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2057 && (p1
[sizeof "%rename" - 1] == ' '
2058 || p1
[sizeof "%rename" - 1] == '\t'))
2061 struct spec_list
*sl
;
2062 struct spec_list
*newsl
;
2064 /* Get original name. */
2065 p1
+= sizeof "%rename";
2066 while (*p1
== ' ' || *p1
== '\t')
2069 if (! ISALPHA ((unsigned char) *p1
))
2070 fatal ("specs %%rename syntax malformed after %ld characters",
2071 (long) (p1
- buffer
));
2074 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2077 if (*p2
!= ' ' && *p2
!= '\t')
2078 fatal ("specs %%rename syntax malformed after %ld characters",
2079 (long) (p2
- buffer
));
2083 while (*p2
== ' ' || *p2
== '\t')
2086 if (! ISALPHA ((unsigned char) *p2
))
2087 fatal ("specs %%rename syntax malformed after %ld characters",
2088 (long) (p2
- buffer
));
2090 /* Get new spec name. */
2092 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2096 fatal ("specs %%rename syntax malformed after %ld characters",
2097 (long) (p3
- buffer
));
2100 for (sl
= specs
; sl
; sl
= sl
->next
)
2101 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2105 fatal ("specs %s spec was not found to be renamed", p1
);
2107 if (strcmp (p1
, p2
) == 0)
2110 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2111 if (strcmp (newsl
->name
, p2
) == 0)
2112 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2117 notice ("rename spec %s to %s\n", p1
, p2
);
2119 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2123 set_spec (p2
, *(sl
->ptr_spec
));
2125 free ((void *) *(sl
->ptr_spec
));
2127 *(sl
->ptr_spec
) = "";
2132 fatal ("specs unknown %% command after %ld characters",
2133 (long) (p1
- buffer
));
2136 /* Find the colon that should end the suffix. */
2138 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2141 /* The colon shouldn't be missing. */
2143 fatal ("specs file malformed after %ld characters",
2144 (long) (p1
- buffer
));
2146 /* Skip back over trailing whitespace. */
2148 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2151 /* Copy the suffix to a string. */
2152 suffix
= save_string (p
, p2
- p
);
2153 /* Find the next line. */
2154 p
= skip_whitespace (p1
+ 1);
2156 fatal ("specs file malformed after %ld characters",
2157 (long) (p
- buffer
));
2160 /* Find next blank line or end of string. */
2161 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2164 /* Specs end at the blank line and do not include the newline. */
2165 spec
= save_string (p
, p1
- p
);
2168 /* Delete backslash-newline sequences from the spec. */
2173 if (in
[0] == '\\' && in
[1] == '\n')
2175 else if (in
[0] == '#')
2176 while (*in
&& *in
!= '\n')
2184 if (suffix
[0] == '*')
2186 if (! strcmp (suffix
, "*link_command"))
2187 link_command_spec
= spec
;
2189 set_spec (suffix
+ 1, spec
);
2193 /* Add this pair to the vector. */
2195 = xrealloc (compilers
,
2196 (n_compilers
+ 2) * sizeof (struct compiler
));
2198 compilers
[n_compilers
].suffix
= suffix
;
2199 compilers
[n_compilers
].spec
= spec
;
2201 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2205 link_command_spec
= spec
;
2208 if (link_command_spec
== 0)
2209 fatal ("spec file has no spec for linking");
2212 /* Record the names of temporary files we tell compilers to write,
2213 and delete them at the end of the run. */
2215 /* This is the common prefix we use to make temp file names.
2216 It is chosen once for each run of this program.
2217 It is substituted into a spec by %g or %j.
2218 Thus, all temp file names contain this prefix.
2219 In practice, all temp file names start with this prefix.
2221 This prefix comes from the envvar TMPDIR if it is defined;
2222 otherwise, from the P_tmpdir macro if that is defined;
2223 otherwise, in /usr/tmp or /tmp;
2224 or finally the current directory if all else fails. */
2226 static const char *temp_filename
;
2228 /* Length of the prefix. */
2230 static int temp_filename_length
;
2232 /* Define the list of temporary files to delete. */
2237 struct temp_file
*next
;
2240 /* Queue of files to delete on success or failure of compilation. */
2241 static struct temp_file
*always_delete_queue
;
2242 /* Queue of files to delete on failure of compilation. */
2243 static struct temp_file
*failure_delete_queue
;
2245 /* Record FILENAME as a file to be deleted automatically.
2246 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2247 otherwise delete it in any case.
2248 FAIL_DELETE nonzero means delete it if a compilation step fails;
2249 otherwise delete it in any case. */
2252 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2254 char *const name
= xstrdup (filename
);
2258 struct temp_file
*temp
;
2259 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2260 if (! strcmp (name
, temp
->name
))
2263 temp
= xmalloc (sizeof (struct temp_file
));
2264 temp
->next
= always_delete_queue
;
2266 always_delete_queue
= temp
;
2273 struct temp_file
*temp
;
2274 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2275 if (! strcmp (name
, temp
->name
))
2278 temp
= xmalloc (sizeof (struct temp_file
));
2279 temp
->next
= failure_delete_queue
;
2281 failure_delete_queue
= temp
;
2287 /* Delete all the temporary files whose names we previously recorded. */
2289 #ifndef DELETE_IF_ORDINARY
2290 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2293 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2294 if (unlink (NAME) < 0) \
2296 perror_with_name (NAME); \
2301 delete_if_ordinary (const char *name
)
2307 printf ("Delete %s? (y or n) ", name
);
2311 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2314 if (i
== 'y' || i
== 'Y')
2316 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2320 delete_temp_files (void)
2322 struct temp_file
*temp
;
2324 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2325 delete_if_ordinary (temp
->name
);
2326 always_delete_queue
= 0;
2329 /* Delete all the files to be deleted on error. */
2332 delete_failure_queue (void)
2334 struct temp_file
*temp
;
2336 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2337 delete_if_ordinary (temp
->name
);
2341 clear_failure_queue (void)
2343 failure_delete_queue
= 0;
2346 /* Build a list of search directories from PATHS.
2347 PREFIX is a string to prepend to the list.
2348 If CHECK_DIR_P is nonzero we ensure the directory exists.
2349 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2350 It is also used by the --print-search-dirs flag. */
2353 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2356 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2358 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2359 int first_time
= TRUE
;
2360 struct prefix_list
*pprefix
;
2362 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2363 obstack_1grow (&collect_obstack
, '=');
2365 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2367 int len
= strlen (pprefix
->prefix
);
2371 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2374 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2377 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2378 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2381 if (just_machine_suffix
2382 && pprefix
->require_machine_suffix
== 2
2384 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2387 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2390 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2391 obstack_grow (&collect_obstack
, just_machine_suffix
,
2395 if (! pprefix
->require_machine_suffix
)
2398 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2401 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2405 obstack_1grow (&collect_obstack
, '\0');
2406 return obstack_finish (&collect_obstack
);
2409 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2413 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2415 putenv (build_search_list (paths
, env_var
, 1));
2418 /* Check whether NAME can be accessed in MODE. This is like access,
2419 except that it never considers directories to be executable. */
2422 access_check (const char *name
, int mode
)
2428 if (stat (name
, &st
) < 0
2429 || S_ISDIR (st
.st_mode
))
2433 return access (name
, mode
);
2436 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2437 access to check permissions.
2438 Return 0 if not found, otherwise return its name, allocated with malloc. */
2441 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2445 const char *const file_suffix
=
2446 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2447 struct prefix_list
*pl
;
2448 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2449 const char *multilib_name
, *multilib_os_name
;
2451 #ifdef DEFAULT_ASSEMBLER
2452 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2453 return xstrdup (DEFAULT_ASSEMBLER
);
2456 #ifdef DEFAULT_LINKER
2457 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2458 return xstrdup (DEFAULT_LINKER
);
2462 len
+= strlen (machine_suffix
);
2464 multilib_name
= name
;
2465 multilib_os_name
= name
;
2466 if (multilib
&& multilib_os_dir
)
2468 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2469 int len2
= strlen (multilib_os_dir
) + 1;
2471 len
+= len1
> len2
? len1
: len2
;
2473 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2475 if (strcmp (multilib_os_dir
, ".") != 0)
2476 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2480 temp
= xmalloc (len
);
2482 /* Determine the filename to execute (special case for absolute paths). */
2484 if (IS_ABSOLUTE_PATH (name
))
2486 if (access (name
, mode
) == 0)
2488 strcpy (temp
, name
);
2493 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2495 const char *this_name
2496 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2500 /* Some systems have a suffix for executable files.
2501 So try appending that first. */
2502 if (file_suffix
[0] != 0)
2504 strcpy (temp
, pl
->prefix
);
2505 strcat (temp
, machine_suffix
);
2506 strcat (temp
, multilib_name
);
2507 strcat (temp
, file_suffix
);
2508 if (access_check (temp
, mode
) == 0)
2512 /* Now try just the multilib_name. */
2513 strcpy (temp
, pl
->prefix
);
2514 strcat (temp
, machine_suffix
);
2515 strcat (temp
, multilib_name
);
2516 if (access_check (temp
, mode
) == 0)
2520 /* Certain prefixes are tried with just the machine type,
2521 not the version. This is used for finding as, ld, etc. */
2522 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2524 /* Some systems have a suffix for executable files.
2525 So try appending that first. */
2526 if (file_suffix
[0] != 0)
2528 strcpy (temp
, pl
->prefix
);
2529 strcat (temp
, just_machine_suffix
);
2530 strcat (temp
, multilib_name
);
2531 strcat (temp
, file_suffix
);
2532 if (access_check (temp
, mode
) == 0)
2536 strcpy (temp
, pl
->prefix
);
2537 strcat (temp
, just_machine_suffix
);
2538 strcat (temp
, multilib_name
);
2539 if (access_check (temp
, mode
) == 0)
2543 /* Certain prefixes can't be used without the machine suffix
2544 when the machine or version is explicitly specified. */
2545 if (! pl
->require_machine_suffix
)
2547 /* Some systems have a suffix for executable files.
2548 So try appending that first. */
2549 if (file_suffix
[0] != 0)
2551 strcpy (temp
, pl
->prefix
);
2552 strcat (temp
, this_name
);
2553 strcat (temp
, file_suffix
);
2554 if (access_check (temp
, mode
) == 0)
2558 strcpy (temp
, pl
->prefix
);
2559 strcat (temp
, this_name
);
2560 if (access_check (temp
, mode
) == 0)
2569 /* Ranking of prefixes in the sort list. -B prefixes are put before
2572 enum path_prefix_priority
2574 PREFIX_PRIORITY_B_OPT
,
2575 PREFIX_PRIORITY_LAST
2578 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2579 order according to PRIORITY. Within each PRIORITY, new entries are
2582 If WARN is nonzero, we will warn if no file is found
2583 through this prefix. WARN should point to an int
2584 which will be set to 1 if this entry is used.
2586 COMPONENT is the value to be passed to update_path.
2588 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2589 the complete value of machine_suffix.
2590 2 means try both machine_suffix and just_machine_suffix. */
2593 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2594 const char *component
, /* enum prefix_priority */ int priority
,
2595 int require_machine_suffix
, int os_multilib
)
2597 struct prefix_list
*pl
, **prev
;
2600 for (prev
= &pprefix
->plist
;
2601 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2602 prev
= &(*prev
)->next
)
2605 /* Keep track of the longest prefix. */
2607 prefix
= update_path (prefix
, component
);
2608 len
= strlen (prefix
);
2609 if (len
> pprefix
->max_len
)
2610 pprefix
->max_len
= len
;
2612 pl
= xmalloc (sizeof (struct prefix_list
));
2613 pl
->prefix
= prefix
;
2614 pl
->require_machine_suffix
= require_machine_suffix
;
2615 pl
->priority
= priority
;
2616 pl
->os_multilib
= os_multilib
;
2618 /* Insert after PREV. */
2623 /* Same as add_prefix, but prepending target_system_root to prefix. */
2625 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2626 const char *component
,
2627 /* enum prefix_priority */ int priority
,
2628 int require_machine_suffix
, int os_multilib
)
2630 if (!IS_ABSOLUTE_PATH (prefix
))
2631 fatal ("system path '%s' is not absolute", prefix
);
2633 if (target_system_root
)
2635 if (target_sysroot_suffix
)
2636 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2637 prefix
= concat (target_system_root
, prefix
, NULL
);
2639 /* We have to override this because GCC's notion of sysroot
2640 moves along with GCC. */
2644 add_prefix (pprefix
, prefix
, component
, priority
,
2645 require_machine_suffix
, os_multilib
);
2648 /* Execute the command specified by the arguments on the current line of spec.
2649 When using pipes, this includes several piped-together commands
2650 with `|' between them.
2652 Return 0 if successful, -1 if failed. */
2658 int n_commands
; /* # of command. */
2662 const char *prog
; /* program name. */
2663 const char **argv
; /* vector of args. */
2664 int pid
; /* pid of process for this command. */
2667 struct command
*commands
; /* each command buffer with above info. */
2669 gcc_assert (!processing_spec_function
);
2671 /* Count # of piped commands. */
2672 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2673 if (strcmp (argbuf
[i
], "|") == 0)
2676 /* Get storage for each command. */
2677 commands
= alloca (n_commands
* sizeof (struct command
));
2679 /* Split argbuf into its separate piped processes,
2680 and record info about each one.
2681 Also search for the programs that are to be run. */
2683 commands
[0].prog
= argbuf
[0]; /* first command. */
2684 commands
[0].argv
= &argbuf
[0];
2685 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2688 commands
[0].argv
[0] = string
;
2690 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2691 if (strcmp (argbuf
[i
], "|") == 0)
2692 { /* each command. */
2693 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2694 fatal ("-pipe not supported");
2696 argbuf
[i
] = 0; /* termination of command args. */
2697 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2698 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2699 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2702 commands
[n_commands
].argv
[0] = string
;
2706 argbuf
[argbuf_index
] = 0;
2708 /* If -v, print what we are about to do, and maybe query. */
2712 /* For help listings, put a blank line between sub-processes. */
2713 if (print_help_list
)
2714 fputc ('\n', stderr
);
2716 /* Print each piped command as a separate line. */
2717 for (i
= 0; i
< n_commands
; i
++)
2719 const char *const *j
;
2721 if (verbose_only_flag
)
2723 for (j
= commands
[i
].argv
; *j
; j
++)
2726 fprintf (stderr
, " \"");
2727 for (p
= *j
; *p
; ++p
)
2729 if (*p
== '"' || *p
== '\\' || *p
== '$')
2730 fputc ('\\', stderr
);
2733 fputc ('"', stderr
);
2737 for (j
= commands
[i
].argv
; *j
; j
++)
2738 fprintf (stderr
, " %s", *j
);
2740 /* Print a pipe symbol after all but the last command. */
2741 if (i
+ 1 != n_commands
)
2742 fprintf (stderr
, " |");
2743 fprintf (stderr
, "\n");
2746 if (verbose_only_flag
!= 0)
2748 /* verbose_only_flag should act as if the spec was
2749 executed, so increment execution_count before
2750 returning. This prevents spurious warnings about
2751 unused linker input files, etc. */
2756 notice ("\nGo ahead? (y or n) ");
2760 while (getchar () != '\n')
2763 if (i
!= 'y' && i
!= 'Y')
2768 #ifdef ENABLE_VALGRIND_CHECKING
2769 /* Run the each command through valgrind. To simplify prepending the
2770 path to valgrind and the option "-q" (for quiet operation unless
2771 something triggers), we allocate a separate argv array. */
2773 for (i
= 0; i
< n_commands
; i
++)
2779 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2782 argv
= alloca ((argc
+ 3) * sizeof (char *));
2784 argv
[0] = VALGRIND_PATH
;
2786 for (j
= 2; j
< argc
+ 2; j
++)
2787 argv
[j
] = commands
[i
].argv
[j
- 2];
2790 commands
[i
].argv
= argv
;
2791 commands
[i
].prog
= argv
[0];
2795 /* Run each piped subprocess. */
2797 for (i
= 0; i
< n_commands
; i
++)
2799 char *errmsg_fmt
, *errmsg_arg
;
2800 const char *string
= commands
[i
].argv
[0];
2802 /* For some bizarre reason, the second argument of execvp() is
2803 char *const *, not const char *const *. */
2804 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2805 programname
, temp_filename
,
2806 &errmsg_fmt
, &errmsg_arg
,
2807 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2808 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2809 | (string
== commands
[i
].prog
2810 ? PEXECUTE_SEARCH
: 0)
2811 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2813 if (commands
[i
].pid
== -1)
2814 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2816 if (string
!= commands
[i
].prog
)
2817 free ((void *) string
);
2822 /* Wait for all the subprocesses to finish.
2823 We don't care what order they finish in;
2824 we know that N_COMMANDS waits will get them all.
2825 Ignore subprocesses that we don't know about,
2826 since they can be spawned by the process that exec'ed us. */
2830 #ifdef HAVE_GETRUSAGE
2832 double ut
= 0.0, st
= 0.0;
2835 for (i
= 0; i
< n_commands
;)
2841 pid
= pwait (commands
[i
].pid
, &status
, 0);
2842 gcc_assert (pid
>= 0);
2844 #ifdef HAVE_GETRUSAGE
2847 /* getrusage returns the total resource usage of all children
2848 up to now. Copy the previous values into prus, get the
2849 current statistics, then take the difference. */
2852 getrusage (RUSAGE_CHILDREN
, &rus
);
2853 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2854 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2855 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2857 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2858 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2859 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2863 for (j
= 0; j
< n_commands
; j
++)
2864 if (commands
[j
].pid
== pid
)
2867 if (WIFSIGNALED (status
))
2870 /* SIGPIPE is a special case. It happens in -pipe mode
2871 when the compiler dies before the preprocessor is
2872 done, or the assembler dies before the compiler is
2873 done. There's generally been an error already, and
2874 this is just fallout. So don't generate another error
2875 unless we would otherwise have succeeded. */
2876 if (WTERMSIG (status
) == SIGPIPE
2877 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2882 Internal error: %s (program %s)\n\
2883 Please submit a full bug report.\n\
2884 See %s for instructions.",
2885 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2890 else if (WIFEXITED (status
)
2891 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2893 if (WEXITSTATUS (status
) > greatest_status
)
2894 greatest_status
= WEXITSTATUS (status
);
2897 #ifdef HAVE_GETRUSAGE
2898 if (report_times
&& ut
+ st
!= 0)
2899 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2908 /* Find all the switches given to us
2909 and make a vector describing them.
2910 The elements of the vector are strings, one per switch given.
2911 If a switch uses following arguments, then the `part1' field
2912 is the switch itself and the `args' field
2913 is a null-terminated vector containing the following arguments.
2914 The `live_cond' field is:
2916 1 if the switch is true in a conditional spec,
2917 -1 if false (overridden by a later switch)
2918 -2 if this switch should be ignored (used in %<S)
2919 The `validated' field is nonzero if any spec has looked at this switch;
2920 if it remains zero at the end of the run, it must be meaningless. */
2923 #define SWITCH_FALSE -1
2924 #define SWITCH_IGNORE -2
2925 #define SWITCH_LIVE 1
2932 unsigned char validated
;
2933 unsigned char ordering
;
2936 static struct switchstr
*switches
;
2938 static int n_switches
;
2943 const char *language
;
2944 struct compiler
*incompiler
;
2949 /* Also a vector of input files specified. */
2951 static struct infile
*infiles
;
2955 /* True if multiple input files are being compiled to a single
2958 static bool combine_inputs
;
2960 /* This counts the number of libraries added by lang_specific_driver, so that
2961 we can tell if there were any user supplied any files or libraries. */
2963 static int added_libraries
;
2965 /* And a vector of corresponding output files is made up later. */
2967 const char **outfiles
;
2969 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2971 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2972 is true if we should look for an executable suffix. DO_OBJ
2973 is true if we should look for an object suffix. */
2976 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2977 int do_obj ATTRIBUTE_UNUSED
)
2979 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2987 len
= strlen (name
);
2989 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2990 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2991 if (do_obj
&& len
> 2
2992 && name
[len
- 2] == '.'
2993 && name
[len
- 1] == 'o')
2995 obstack_grow (&obstack
, name
, len
- 2);
2996 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2997 name
= obstack_finish (&obstack
);
3001 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3002 /* If there is no filetype, make it the executable suffix (which includes
3003 the "."). But don't get confused if we have just "-o". */
3004 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3007 for (i
= len
- 1; i
>= 0; i
--)
3008 if (IS_DIR_SEPARATOR (name
[i
]))
3011 for (i
++; i
< len
; i
++)
3015 obstack_grow (&obstack
, name
, len
);
3016 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3017 strlen (TARGET_EXECUTABLE_SUFFIX
));
3018 name
= obstack_finish (&obstack
);
3025 /* Display the command line switches accepted by gcc. */
3029 printf (_("Usage: %s [options] file...\n"), programname
);
3030 fputs (_("Options:\n"), stdout
);
3032 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3033 fputs (_(" --help Display this information\n"), stdout
);
3034 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3036 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3037 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3038 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3039 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3040 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3041 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3042 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3043 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3044 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3046 -print-multi-lib Display the mapping between command line options and\n\
3047 multiple library search directories\n"), stdout
);
3048 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3049 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3050 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3051 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3052 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3053 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3054 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3055 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3056 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3057 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3058 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3059 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3060 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3061 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3062 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3063 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3064 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3065 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3066 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3067 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3068 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3069 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3071 -x <language> Specify the language of the following input files\n\
3072 Permissible languages include: c c++ assembler none\n\
3073 'none' means revert to the default behavior of\n\
3074 guessing the language based on the file's extension\n\
3078 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3079 passed on to the various sub-processes invoked by %s. In order to pass\n\
3080 other options on to these processes the -W<letter> options must be used.\n\
3083 /* The rest of the options are displayed by invocations of the various
3088 add_preprocessor_option (const char *option
, int len
)
3090 n_preprocessor_options
++;
3092 if (! preprocessor_options
)
3093 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3095 preprocessor_options
= xrealloc (preprocessor_options
,
3096 n_preprocessor_options
* sizeof (char *));
3098 preprocessor_options
[n_preprocessor_options
- 1] =
3099 save_string (option
, len
);
3103 add_assembler_option (const char *option
, int len
)
3105 n_assembler_options
++;
3107 if (! assembler_options
)
3108 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3110 assembler_options
= xrealloc (assembler_options
,
3111 n_assembler_options
* sizeof (char *));
3113 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3117 add_linker_option (const char *option
, int len
)
3121 if (! linker_options
)
3122 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3124 linker_options
= xrealloc (linker_options
,
3125 n_linker_options
* sizeof (char *));
3127 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3130 /* Create the vector `switches' and its contents.
3131 Store its length in `n_switches'. */
3134 process_command (int argc
, const char **argv
)
3139 const char *spec_lang
= 0;
3140 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 2006 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. */
3688 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3693 /* Forward scan, just in case -S or -c is specified
3700 if (argv
[j
][0] == '-')
3702 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3708 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3709 j
+= skip
- (argv
[j
][2] != 0);
3710 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3717 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3719 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3721 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3728 #ifdef MODIFY_TARGET_NAME
3729 is_modify_target_name
= 0;
3731 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3732 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3734 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3735 + strlen (spec_machine
));
3738 int made_addition
= 0;
3740 is_modify_target_name
= 1;
3741 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3743 if (modify_target
[j
].add_del
== DELETE
3744 && (! strncmp (q
, modify_target
[j
].str
,
3745 strlen (modify_target
[j
].str
))))
3746 p
+= strlen (modify_target
[j
].str
);
3747 else if (modify_target
[j
].add_del
== ADD
3748 && ! made_addition
&& *p
== '-')
3750 for (r
= modify_target
[j
].str
; *r
!= 0; )
3758 spec_machine
= new_name
;
3761 if (is_modify_target_name
)
3767 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3768 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3769 else if (WORD_SWITCH_TAKES_ARG (p
))
3770 i
+= WORD_SWITCH_TAKES_ARG (p
);
3780 if ((save_temps_flag
|| report_times
) && use_pipes
)
3782 /* -save-temps overrides -pipe, so that temp files are produced */
3783 if (save_temps_flag
)
3784 error ("warning: -pipe ignored because -save-temps specified");
3785 /* -time overrides -pipe because we can't get correct stats when
3786 multiple children are running at once. */
3787 else if (report_times
)
3788 error ("warning: -pipe ignored because -time specified");
3793 /* Set up the search paths before we go looking for config files. */
3795 /* These come before the md prefixes so that we will find gcc's subcommands
3796 (such as cpp) rather than those of the host system. */
3797 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3798 as well as trying the machine and the version. */
3800 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3801 PREFIX_PRIORITY_LAST
, 1, 0);
3802 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3803 PREFIX_PRIORITY_LAST
, 2, 0);
3804 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3805 PREFIX_PRIORITY_LAST
, 2, 0);
3806 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3807 PREFIX_PRIORITY_LAST
, 2, 0);
3808 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3809 PREFIX_PRIORITY_LAST
, 2, 0);
3812 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3813 PREFIX_PRIORITY_LAST
, 1, 0);
3814 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3815 PREFIX_PRIORITY_LAST
, 1, 0);
3817 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3818 dir_separator_str
, NULL
);
3820 /* If tooldir is relative, base it on exec_prefixes. A relative
3821 tooldir lets us move the installed tree as a unit.
3823 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3824 directories, so that we can search both the user specified directory
3825 and the standard place. */
3827 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3829 if (gcc_exec_prefix
)
3831 char *gcc_exec_tooldir_prefix
3832 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3833 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3835 add_prefix (&exec_prefixes
,
3836 concat (gcc_exec_tooldir_prefix
, "bin",
3837 dir_separator_str
, NULL
),
3838 NULL
, PREFIX_PRIORITY_LAST
, 0, 0);
3839 add_prefix (&startfile_prefixes
,
3840 concat (gcc_exec_tooldir_prefix
, "lib",
3841 dir_separator_str
, NULL
),
3842 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
3845 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3846 dir_separator_str
, spec_version
,
3847 dir_separator_str
, tooldir_prefix
, NULL
);
3850 add_prefix (&exec_prefixes
,
3851 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3852 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3853 add_prefix (&startfile_prefixes
,
3854 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3855 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3857 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3858 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3859 then consider it to relocate with the rest of the GCC installation
3860 if GCC_EXEC_PREFIX is set.
3861 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3862 if (target_system_root
&& gcc_exec_prefix
)
3864 char *tmp_prefix
= make_relative_prefix (argv
[0],
3865 standard_bindir_prefix
,
3866 target_system_root
);
3867 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3869 target_system_root
= tmp_prefix
;
3870 target_system_root_changed
= 1;
3875 /* More prefixes are enabled in main, after we read the specs file
3876 and determine whether this is cross-compilation or not. */
3878 /* Then create the space for the vectors and scan again. */
3880 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3881 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3884 last_language_n_infiles
= -1;
3886 /* This, time, copy the text of each switch and store a pointer
3887 to the copy in the vector of switches.
3888 Store all the infiles in their vector. */
3890 for (i
= 1; i
< argc
; i
++)
3892 /* Just skip the switches that were handled by the preceding loop. */
3893 #ifdef MODIFY_TARGET_NAME
3894 is_modify_target_name
= 0;
3896 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3897 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3898 is_modify_target_name
= 1;
3900 if (is_modify_target_name
)
3904 if (! strncmp (argv
[i
], "-Wa,", 4))
3906 else if (! strncmp (argv
[i
], "-Wp,", 4))
3908 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3910 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3912 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3914 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3916 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3918 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3920 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3922 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3924 else if (! strcmp (argv
[i
], "-ftarget-help"))
3926 else if (! strcmp (argv
[i
], "-fhelp"))
3928 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3930 /* Compensate for the +e options to the C++ front-end;
3931 they're there simply for cfront call-compatibility. We do
3932 some magic in default_compilers to pass them down properly.
3933 Note we deliberately start at the `+' here, to avoid passing
3934 -e0 or -e1 down into the linker. */
3935 switches
[n_switches
].part1
= &argv
[i
][0];
3936 switches
[n_switches
].args
= 0;
3937 switches
[n_switches
].live_cond
= SWITCH_OK
;
3938 switches
[n_switches
].validated
= 0;
3941 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3944 /* Split the argument at commas. */
3946 for (j
= 4; argv
[i
][j
]; j
++)
3947 if (argv
[i
][j
] == ',')
3949 infiles
[n_infiles
].language
= "*";
3950 infiles
[n_infiles
++].name
3951 = save_string (argv
[i
] + prev
, j
- prev
);
3954 /* Record the part after the last comma. */
3955 infiles
[n_infiles
].language
= "*";
3956 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3958 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3960 infiles
[n_infiles
].language
= "*";
3961 infiles
[n_infiles
++].name
= argv
[++i
];
3963 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3965 infiles
[n_infiles
].language
= "*";
3966 infiles
[n_infiles
++].name
= argv
[++i
];
3968 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3970 infiles
[n_infiles
].language
= "*";
3971 infiles
[n_infiles
++].name
= argv
[++i
];
3973 else if (strcmp (argv
[i
], "-l") == 0)
3974 { /* POSIX allows separation of -l and the lib arg;
3975 canonicalize by concatenating -l with its arg */
3976 infiles
[n_infiles
].language
= "*";
3977 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3979 else if (strncmp (argv
[i
], "-l", 2) == 0)
3981 infiles
[n_infiles
].language
= "*";
3982 infiles
[n_infiles
++].name
= argv
[i
];
3984 else if (strcmp (argv
[i
], "-specs") == 0)
3986 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3988 else if (strcmp (argv
[i
], "-time") == 0)
3990 else if (strcmp (argv
[i
], "-###") == 0)
3992 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3994 const char *p
= &argv
[i
][1];
3999 if (p
[1] == 0 && i
+ 1 == argc
)
4000 fatal ("argument to '-x' is missing");
4002 spec_lang
= argv
[++i
];
4005 if (! strcmp (spec_lang
, "none"))
4006 /* Suppress the warning if -xnone comes after the last input
4007 file, because alternate command interfaces like g++ might
4008 find it useful to place -xnone after each input file. */
4011 last_language_n_infiles
= n_infiles
;
4014 switches
[n_switches
].part1
= p
;
4015 /* Deal with option arguments in separate argv elements. */
4016 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4017 || WORD_SWITCH_TAKES_ARG (p
))
4020 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4024 /* Count only the option arguments in separate argv elements. */
4025 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4027 if (i
+ n_args
>= argc
)
4028 fatal ("argument to '-%s' is missing", p
);
4029 switches
[n_switches
].args
4030 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4032 switches
[n_switches
].args
[j
++] = argv
[++i
];
4033 /* Null-terminate the vector. */
4034 switches
[n_switches
].args
[j
] = 0;
4036 else if (strchr (switches_need_spaces
, c
))
4038 /* On some systems, ld cannot handle some options without
4039 a space. So split the option from its argument. */
4040 char *part1
= xmalloc (2);
4044 switches
[n_switches
].part1
= part1
;
4045 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4046 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4047 switches
[n_switches
].args
[1] = 0;
4050 switches
[n_switches
].args
= 0;
4052 switches
[n_switches
].live_cond
= SWITCH_OK
;
4053 switches
[n_switches
].validated
= 0;
4054 switches
[n_switches
].ordering
= 0;
4055 /* These are always valid, since gcc.c itself understands them. */
4056 if (!strcmp (p
, "save-temps")
4057 || !strcmp (p
, "static-libgcc")
4058 || !strcmp (p
, "shared-libgcc")
4059 || !strcmp (p
, "pipe"))
4060 switches
[n_switches
].validated
= 1;
4063 char ch
= switches
[n_switches
].part1
[0];
4065 switches
[n_switches
].validated
= 1;
4071 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4072 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4075 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4077 perror_with_name (argv
[i
]);
4082 infiles
[n_infiles
].language
= spec_lang
;
4083 infiles
[n_infiles
++].name
= argv
[i
];
4088 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4089 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4091 /* Ensure we only invoke each subprocess once. */
4092 if (target_help_flag
|| print_help_list
)
4096 /* Create a dummy input file, so that we can pass --target-help on to
4097 the various sub-processes. */
4098 infiles
[0].language
= "c";
4099 infiles
[0].name
= "help-dummy";
4101 if (target_help_flag
)
4103 switches
[n_switches
].part1
= "--target-help";
4104 switches
[n_switches
].args
= 0;
4105 switches
[n_switches
].live_cond
= SWITCH_OK
;
4106 switches
[n_switches
].validated
= 0;
4111 if (print_help_list
)
4113 switches
[n_switches
].part1
= "--help";
4114 switches
[n_switches
].args
= 0;
4115 switches
[n_switches
].live_cond
= SWITCH_OK
;
4116 switches
[n_switches
].validated
= 0;
4122 switches
[n_switches
].part1
= 0;
4123 infiles
[n_infiles
].name
= 0;
4126 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4127 and place that in the environment. */
4130 set_collect_gcc_options (void)
4135 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4137 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4138 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4141 for (i
= 0; (int) i
< n_switches
; i
++)
4143 const char *const *args
;
4146 obstack_grow (&collect_obstack
, " ", 1);
4150 /* Ignore elided switches. */
4151 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4154 obstack_grow (&collect_obstack
, "'-", 2);
4155 q
= switches
[i
].part1
;
4156 while ((p
= strchr (q
, '\'')))
4158 obstack_grow (&collect_obstack
, q
, p
- q
);
4159 obstack_grow (&collect_obstack
, "'\\''", 4);
4162 obstack_grow (&collect_obstack
, q
, strlen (q
));
4163 obstack_grow (&collect_obstack
, "'", 1);
4165 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4167 obstack_grow (&collect_obstack
, " '", 2);
4169 while ((p
= strchr (q
, '\'')))
4171 obstack_grow (&collect_obstack
, q
, p
- q
);
4172 obstack_grow (&collect_obstack
, "'\\''", 4);
4175 obstack_grow (&collect_obstack
, q
, strlen (q
));
4176 obstack_grow (&collect_obstack
, "'", 1);
4179 obstack_grow (&collect_obstack
, "\0", 1);
4180 putenv (obstack_finish (&collect_obstack
));
4183 /* Process a spec string, accumulating and running commands. */
4185 /* These variables describe the input file name.
4186 input_file_number is the index on outfiles of this file,
4187 so that the output file name can be stored for later use by %o.
4188 input_basename is the start of the part of the input file
4189 sans all directory names, and basename_length is the number
4190 of characters starting there excluding the suffix .c or whatever. */
4192 static const char *input_filename
;
4193 static int input_file_number
;
4194 size_t input_filename_length
;
4195 static int basename_length
;
4196 static int suffixed_basename_length
;
4197 static const char *input_basename
;
4198 static const char *input_suffix
;
4199 #ifndef HOST_LACKS_INODE_NUMBERS
4200 static struct stat input_stat
;
4202 static int input_stat_set
;
4204 /* The compiler used to process the current input file. */
4205 static struct compiler
*input_file_compiler
;
4207 /* These are variables used within do_spec and do_spec_1. */
4209 /* Nonzero if an arg has been started and not yet terminated
4210 (with space, tab or newline). */
4211 static int arg_going
;
4213 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4214 is a temporary file name. */
4215 static int delete_this_arg
;
4217 /* Nonzero means %w has been seen; the next arg to be terminated
4218 is the output file name of this compilation. */
4219 static int this_is_output_file
;
4221 /* Nonzero means %s has been seen; the next arg to be terminated
4222 is the name of a library file and we should try the standard
4223 search dirs for it. */
4224 static int this_is_library_file
;
4226 /* Nonzero means that the input of this command is coming from a pipe. */
4227 static int input_from_pipe
;
4229 /* Nonnull means substitute this for any suffix when outputting a switches
4231 static const char *suffix_subst
;
4233 /* Process the spec SPEC and run the commands specified therein.
4234 Returns 0 if the spec is successfully processed; -1 if failed. */
4237 do_spec (const char *spec
)
4241 value
= do_spec_2 (spec
);
4243 /* Force out any unfinished command.
4244 If -pipe, this forces out the last command if it ended in `|'. */
4247 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4250 set_collect_gcc_options ();
4252 if (argbuf_index
> 0)
4260 do_spec_2 (const char *spec
)
4267 delete_this_arg
= 0;
4268 this_is_output_file
= 0;
4269 this_is_library_file
= 0;
4270 input_from_pipe
= 0;
4271 suffix_subst
= NULL
;
4273 result
= do_spec_1 (spec
, 0, NULL
);
4275 /* End any pending argument. */
4278 obstack_1grow (&obstack
, 0);
4279 string
= obstack_finish (&obstack
);
4280 if (this_is_library_file
)
4281 string
= find_file (string
);
4282 store_arg (string
, delete_this_arg
, this_is_output_file
);
4283 if (this_is_output_file
)
4284 outfiles
[input_file_number
] = string
;
4292 /* Process the given spec string and add any new options to the end
4293 of the switches/n_switches array. */
4296 do_option_spec (const char *name
, const char *spec
)
4298 unsigned int i
, value_count
, value_len
;
4299 const char *p
, *q
, *value
;
4300 char *tmp_spec
, *tmp_spec_p
;
4302 if (configure_default_options
[0].name
== NULL
)
4305 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4306 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4308 if (i
== ARRAY_SIZE (configure_default_options
))
4311 value
= configure_default_options
[i
].value
;
4312 value_len
= strlen (value
);
4314 /* Compute the size of the final spec. */
4317 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4323 /* Replace each %(VALUE) by the specified value. */
4324 tmp_spec
= alloca (strlen (spec
) + 1
4325 + value_count
* (value_len
- strlen ("%(VALUE)")));
4326 tmp_spec_p
= tmp_spec
;
4328 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4330 memcpy (tmp_spec_p
, q
, p
- q
);
4331 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4332 memcpy (tmp_spec_p
, value
, value_len
);
4333 tmp_spec_p
+= value_len
;
4334 q
= p
+ strlen ("%(VALUE)");
4336 strcpy (tmp_spec_p
, q
);
4338 do_self_spec (tmp_spec
);
4341 /* Process the given spec string and add any new options to the end
4342 of the switches/n_switches array. */
4345 do_self_spec (const char *spec
)
4348 do_spec_1 (" ", 0, NULL
);
4350 if (argbuf_index
> 0)
4355 n_switches
+= argbuf_index
;
4356 switches
= xrealloc (switches
,
4357 sizeof (struct switchstr
) * (n_switches
+ 1));
4359 switches
[n_switches
] = switches
[first
];
4360 for (i
= 0; i
< argbuf_index
; i
++)
4362 struct switchstr
*sw
;
4364 /* Each switch should start with '-'. */
4365 if (argbuf
[i
][0] != '-')
4366 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4368 sw
= &switches
[i
+ first
];
4369 sw
->part1
= &argbuf
[i
][1];
4371 sw
->live_cond
= SWITCH_OK
;
4379 do_spec_path (struct prefix_list
*pl
, const char *option
,
4380 int omit_if_relative
, int separate_options
,
4382 const char *dir_for_machine_suffix
,
4383 const char *dir_for_no_suffix
)
4385 static size_t bufsize
= 0;
4386 static char *buffer
;
4389 /* Used on systems which record the specified -L dirs
4390 and use them to search for dynamic linking. */
4391 /* Relative directories always come from -B,
4392 and it is better not to use them for searching
4393 at run time. In particular, stage1 loses. */
4394 if (omit_if_relative
4395 && !IS_ABSOLUTE_PATH (pl
->prefix
))
4398 /* Try subdirectory if there is one. */
4399 if (machine_suffix
&& dir_for_machine_suffix
)
4401 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4403 bufsize
= (strlen (pl
->prefix
)
4404 + strlen (machine_suffix
)) * 2 + 1;
4405 buffer
= xrealloc (buffer
, bufsize
);
4406 strcpy (buffer
, pl
->prefix
);
4407 strcat (buffer
, machine_suffix
);
4408 if (is_directory (buffer
, dir_for_machine_suffix
, 1))
4410 do_spec_1 (option
, separate_options
, NULL
);
4411 if (separate_options
)
4412 do_spec_1 (" ", 0, NULL
);
4413 do_spec_1 (buffer
, 1, NULL
);
4414 do_spec_1 (dir_for_machine_suffix
, 1, NULL
);
4415 /* Make this a separate argument. */
4416 do_spec_1 (" ", 0, NULL
);
4419 if (!pl
->require_machine_suffix
&& dir_for_no_suffix
)
4421 if (is_directory (pl
->prefix
, dir_for_no_suffix
, 1))
4423 do_spec_1 (option
, separate_options
, NULL
);
4424 if (separate_options
)
4425 do_spec_1 (" ", 0, NULL
);
4426 do_spec_1 (pl
->prefix
, 1, NULL
);
4427 do_spec_1 (dir_for_no_suffix
, 1, NULL
);
4428 /* Make this a separate argument. */
4429 do_spec_1 (" ", 0, NULL
);
4438 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4440 do_spec_1 (option
, separate_options
, NULL
);
4441 if (separate_options
)
4442 do_spec_1 (" ", 0, NULL
);
4443 do_spec_1 (pl
->prefix
, 1, NULL
);
4444 /* Remove slash from machine_suffix. */
4445 if (strlen (machine_suffix
) >= bufsize
)
4446 bufsize
= strlen (machine_suffix
) * 2 + 1;
4447 buffer
= xrealloc (buffer
, bufsize
);
4448 strcpy (buffer
, machine_suffix
);
4449 idx
= strlen (buffer
);
4450 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4451 buffer
[idx
- 1] = 0;
4452 do_spec_1 (buffer
, 1, NULL
);
4453 /* Make this a separate argument. */
4454 do_spec_1 (" ", 0, NULL
);
4457 if (!pl
->require_machine_suffix
)
4459 if (is_directory (pl
->prefix
, "", 1))
4461 do_spec_1 (option
, separate_options
, NULL
);
4462 if (separate_options
)
4463 do_spec_1 (" ", 0, NULL
);
4464 /* Remove slash from pl->prefix. */
4465 if (strlen (pl
->prefix
) >= bufsize
)
4466 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4467 buffer
= xrealloc (buffer
, bufsize
);
4468 strcpy (buffer
, pl
->prefix
);
4469 idx
= strlen (buffer
);
4470 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4471 buffer
[idx
- 1] = 0;
4472 do_spec_1 (buffer
, 1, NULL
);
4473 /* Make this a separate argument. */
4474 do_spec_1 (" ", 0, NULL
);
4479 /* Process the sub-spec SPEC as a portion of a larger spec.
4480 This is like processing a whole spec except that we do
4481 not initialize at the beginning and we do not supply a
4482 newline by default at the end.
4483 INSWITCH nonzero means don't process %-sequences in SPEC;
4484 in this case, % is treated as an ordinary character.
4485 This is used while substituting switches.
4486 INSWITCH nonzero also causes SPC not to terminate an argument.
4488 Value is zero unless a line was finished
4489 and the command on that line reported an error. */
4492 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4494 const char *p
= spec
;
4501 /* If substituting a switch, treat all chars like letters.
4502 Otherwise, NL, SPC, TAB and % are special. */
4503 switch (inswitch
? 'a' : c
)
4506 /* End of line: finish any pending argument,
4507 then run the pending command if one has been started. */
4510 obstack_1grow (&obstack
, 0);
4511 string
= obstack_finish (&obstack
);
4512 if (this_is_library_file
)
4513 string
= find_file (string
);
4514 store_arg (string
, delete_this_arg
, this_is_output_file
);
4515 if (this_is_output_file
)
4516 outfiles
[input_file_number
] = string
;
4520 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4522 /* A `|' before the newline means use a pipe here,
4523 but only if -pipe was specified.
4524 Otherwise, execute now and don't pass the `|' as an arg. */
4527 input_from_pipe
= 1;
4534 set_collect_gcc_options ();
4536 if (argbuf_index
> 0)
4542 /* Reinitialize for a new command, and for a new argument. */
4545 delete_this_arg
= 0;
4546 this_is_output_file
= 0;
4547 this_is_library_file
= 0;
4548 input_from_pipe
= 0;
4552 /* End any pending argument. */
4555 obstack_1grow (&obstack
, 0);
4556 string
= obstack_finish (&obstack
);
4557 if (this_is_library_file
)
4558 string
= find_file (string
);
4559 store_arg (string
, delete_this_arg
, this_is_output_file
);
4560 if (this_is_output_file
)
4561 outfiles
[input_file_number
] = string
;
4565 obstack_1grow (&obstack
, c
);
4571 /* Space or tab ends an argument if one is pending. */
4574 obstack_1grow (&obstack
, 0);
4575 string
= obstack_finish (&obstack
);
4576 if (this_is_library_file
)
4577 string
= find_file (string
);
4578 store_arg (string
, delete_this_arg
, this_is_output_file
);
4579 if (this_is_output_file
)
4580 outfiles
[input_file_number
] = string
;
4582 /* Reinitialize for a new argument. */
4584 delete_this_arg
= 0;
4585 this_is_output_file
= 0;
4586 this_is_library_file
= 0;
4593 fatal ("spec '%s' invalid", spec
);
4596 obstack_grow (&obstack
, input_basename
, basename_length
);
4601 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4606 delete_this_arg
= 2;
4609 /* Dump out the directories specified with LIBRARY_PATH,
4610 followed by the absolute directories
4611 that we search for startfiles. */
4614 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4616 for (; pl
; pl
= pl
->next
)
4618 const char *no_suffix_multilib_dir
;
4620 no_suffix_multilib_dir
= pl
->os_multilib
? multilib_os_dir
4622 /* Do not separate options, include non-multilibbed variant. */
4623 do_spec_path (pl
, "-L",
4624 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4629 0, 0, multilib_dir
, no_suffix_multilib_dir
);
4635 /* %efoo means report an error with `foo' as error message
4636 and don't execute any more commands for this file. */
4640 while (*p
!= 0 && *p
!= '\n')
4642 buf
= alloca (p
- q
+ 1);
4643 strncpy (buf
, q
, p
- q
);
4650 /* %nfoo means report a notice with `foo' on stderr. */
4654 while (*p
!= 0 && *p
!= '\n')
4656 buf
= alloca (p
- q
+ 1);
4657 strncpy (buf
, q
, p
- q
);
4659 notice ("%s\n", buf
);
4669 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4670 defined, and it is not a directory, and it is
4671 writable, use it. Otherwise, treat this like any
4672 other temporary file. */
4674 if ((!save_temps_flag
)
4675 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4676 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4678 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4679 strlen (HOST_BIT_BUCKET
));
4680 delete_this_arg
= 0;
4685 goto create_temp_file
;
4689 obstack_1grow (&obstack
, '-');
4690 delete_this_arg
= 0;
4693 /* consume suffix */
4694 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4696 if (p
[0] == '%' && p
[1] == 'O')
4701 goto create_temp_file
;
4705 /* consume suffix */
4706 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4708 if (p
[0] == '%' && p
[1] == 'O')
4713 goto create_temp_file
;
4719 struct temp_name
*t
;
4721 const char *suffix
= p
;
4722 char *saved_suffix
= NULL
;
4724 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4726 suffix_length
= p
- suffix
;
4727 if (p
[0] == '%' && p
[1] == 'O')
4730 /* We don't support extra suffix characters after %O. */
4731 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4732 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4733 if (suffix_length
== 0)
4734 suffix
= TARGET_OBJECT_SUFFIX
;
4738 = xmalloc (suffix_length
4739 + strlen (TARGET_OBJECT_SUFFIX
));
4740 strncpy (saved_suffix
, suffix
, suffix_length
);
4741 strcpy (saved_suffix
+ suffix_length
,
4742 TARGET_OBJECT_SUFFIX
);
4744 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4747 /* If the input_filename has the same suffix specified
4748 for the %g, %u, or %U, and -save-temps is specified,
4749 we could end up using that file as an intermediate
4750 thus clobbering the user's source file (.e.g.,
4751 gcc -save-temps foo.s would clobber foo.s with the
4752 output of cpp0). So check for this condition and
4753 generate a temp file as the intermediate. */
4755 if (save_temps_flag
)
4757 temp_filename_length
= basename_length
+ suffix_length
;
4758 temp_filename
= alloca (temp_filename_length
+ 1);
4759 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4760 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4762 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4763 if (strcmp (temp_filename
, input_filename
) != 0)
4765 #ifndef HOST_LACKS_INODE_NUMBERS
4766 struct stat st_temp
;
4768 /* Note, set_input() resets input_stat_set to 0. */
4769 if (input_stat_set
== 0)
4771 input_stat_set
= stat (input_filename
, &input_stat
);
4772 if (input_stat_set
>= 0)
4776 /* If we have the stat for the input_filename
4777 and we can do the stat for the temp_filename
4778 then the they could still refer to the same
4779 file if st_dev/st_ino's are the same. */
4780 if (input_stat_set
!= 1
4781 || stat (temp_filename
, &st_temp
) < 0
4782 || input_stat
.st_dev
!= st_temp
.st_dev
4783 || input_stat
.st_ino
!= st_temp
.st_ino
)
4785 /* Just compare canonical pathnames. */
4786 char* input_realname
= lrealpath (input_filename
);
4787 char* temp_realname
= lrealpath (temp_filename
);
4788 bool files_differ
= strcmp (input_realname
, temp_realname
);
4789 free (input_realname
);
4790 free (temp_realname
);
4794 temp_filename
= save_string (temp_filename
,
4795 temp_filename_length
+ 1);
4796 obstack_grow (&obstack
, temp_filename
,
4797 temp_filename_length
);
4799 delete_this_arg
= 0;
4805 /* See if we already have an association of %g/%u/%U and
4807 for (t
= temp_names
; t
; t
= t
->next
)
4808 if (t
->length
== suffix_length
4809 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4810 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4813 /* Make a new association if needed. %u and %j
4815 if (t
== 0 || c
== 'u' || c
== 'j')
4819 t
= xmalloc (sizeof (struct temp_name
));
4820 t
->next
= temp_names
;
4823 t
->length
= suffix_length
;
4826 t
->suffix
= saved_suffix
;
4827 saved_suffix
= NULL
;
4830 t
->suffix
= save_string (suffix
, suffix_length
);
4831 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4832 temp_filename
= make_temp_file (t
->suffix
);
4833 temp_filename_length
= strlen (temp_filename
);
4834 t
->filename
= temp_filename
;
4835 t
->filename_length
= temp_filename_length
;
4839 free (saved_suffix
);
4841 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4842 delete_this_arg
= 1;
4850 for (i
= 0; (int) i
< n_infiles
; i
++)
4851 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4852 if (infiles
[i
].incompiler
== input_file_compiler
)
4854 store_arg (infiles
[i
].name
, 0, 0);
4855 infiles
[i
].compiled
= true;
4860 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4867 struct prefix_list
*pl
= include_prefixes
.plist
;
4869 if (gcc_exec_prefix
)
4871 do_spec_1 ("-iprefix", 1, NULL
);
4872 /* Make this a separate argument. */
4873 do_spec_1 (" ", 0, NULL
);
4874 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4875 do_spec_1 (" ", 0, NULL
);
4878 if (target_system_root_changed
||
4879 (target_system_root
&& target_sysroot_hdrs_suffix
))
4881 do_spec_1 ("-isysroot", 1, NULL
);
4882 /* Make this a separate argument. */
4883 do_spec_1 (" ", 0, NULL
);
4884 do_spec_1 (target_system_root
, 1, NULL
);
4885 if (target_sysroot_hdrs_suffix
)
4886 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4887 do_spec_1 (" ", 0, NULL
);
4890 for (; pl
; pl
= pl
->next
)
4891 /* Separate options, don't include non-suffixed variant. */
4892 do_spec_path (pl
, "-isystem", 0, 1, 1, "include", "include");
4898 int max
= n_infiles
;
4899 max
+= lang_specific_extra_outfiles
;
4901 for (i
= 0; i
< max
; i
++)
4903 store_arg (outfiles
[i
], 0, 0);
4908 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4913 this_is_library_file
= 1;
4917 outfiles
[input_file_number
] = NULL
;
4921 this_is_output_file
= 1;
4926 int cur_index
= argbuf_index
;
4927 /* Handle the {...} following the %W. */
4929 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
4930 p
= handle_braces (p
+ 1);
4933 /* End any pending argument. */
4936 obstack_1grow (&obstack
, 0);
4937 string
= obstack_finish (&obstack
);
4938 if (this_is_library_file
)
4939 string
= find_file (string
);
4940 store_arg (string
, delete_this_arg
, this_is_output_file
);
4941 if (this_is_output_file
)
4942 outfiles
[input_file_number
] = string
;
4945 /* If any args were output, mark the last one for deletion
4947 if (argbuf_index
!= cur_index
)
4948 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4952 /* %x{OPTION} records OPTION for %X to output. */
4958 /* Skip past the option value and make a copy. */
4960 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
4963 string
= save_string (p1
+ 1, p
- p1
- 2);
4965 /* See if we already recorded this option. */
4966 for (i
= 0; i
< n_linker_options
; i
++)
4967 if (! strcmp (string
, linker_options
[i
]))
4973 /* This option is new; add it. */
4974 add_linker_option (string
, strlen (string
));
4978 /* Dump out the options accumulated previously using %x. */
4980 for (i
= 0; i
< n_linker_options
; i
++)
4982 do_spec_1 (linker_options
[i
], 1, NULL
);
4983 /* Make each accumulated option a separate argument. */
4984 do_spec_1 (" ", 0, NULL
);
4988 /* Dump out the options accumulated previously using -Wa,. */
4990 for (i
= 0; i
< n_assembler_options
; i
++)
4992 do_spec_1 (assembler_options
[i
], 1, NULL
);
4993 /* Make each accumulated option a separate argument. */
4994 do_spec_1 (" ", 0, NULL
);
4998 /* Dump out the options accumulated previously using -Wp,. */
5000 for (i
= 0; i
< n_preprocessor_options
; i
++)
5002 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5003 /* Make each accumulated option a separate argument. */
5004 do_spec_1 (" ", 0, NULL
);
5008 /* Here are digits and numbers that just process
5009 a certain constant string as a spec. */
5012 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5018 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5024 value
= do_spec_1 (asm_spec
, 0, NULL
);
5030 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5037 const char *const spec
5038 = (input_file_compiler
->cpp_spec
5039 ? input_file_compiler
->cpp_spec
5041 value
= do_spec_1 (spec
, 0, NULL
);
5048 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5054 value
= do_spec_1 (link_spec
, 0, NULL
);
5060 value
= do_spec_1 (lib_spec
, 0, NULL
);
5066 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5072 /* We assume there is a directory
5073 separator at the end of this string. */
5074 if (target_system_root
)
5076 obstack_grow (&obstack
, target_system_root
,
5077 strlen (target_system_root
));
5078 if (target_sysroot_suffix
)
5079 obstack_grow (&obstack
, target_sysroot_suffix
,
5080 strlen (target_sysroot_suffix
));
5085 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5090 /* Here we define characters other than letters and digits. */
5093 p
= handle_braces (p
);
5099 p
= handle_spec_function (p
);
5105 obstack_1grow (&obstack
, '%');
5112 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5114 suffix_subst
= save_string (p
- 1, len
+ 1);
5119 /* Henceforth ignore the option(s) matching the pattern
5124 int have_wildcard
= 0;
5127 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5130 if (p
[len
-1] == '*')
5133 for (i
= 0; i
< n_switches
; i
++)
5134 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5135 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5137 switches
[i
].live_cond
= SWITCH_IGNORE
;
5138 switches
[i
].validated
= 1;
5146 if (soft_matched_part
)
5148 do_spec_1 (soft_matched_part
, 1, NULL
);
5149 do_spec_1 (" ", 0, NULL
);
5152 /* Catch the case where a spec string contains something like
5153 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5154 hand side of the :. */
5155 error ("spec failure: '%%*' has not been initialized by pattern match");
5158 /* Process a string found as the value of a spec given by name.
5159 This feature allows individual machine descriptions
5160 to add and use their own specs.
5161 %[...] modifies -D options the way %P does;
5162 %(...) uses the spec unmodified. */
5164 error ("warning: use of obsolete %%[ operator in specs");
5167 const char *name
= p
;
5168 struct spec_list
*sl
;
5171 /* The string after the S/P is the name of a spec that is to be
5173 while (*p
&& *p
!= ')' && *p
!= ']')
5176 /* See if it's in the list. */
5177 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5178 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5180 name
= *(sl
->ptr_spec
);
5182 notice ("Processing spec %c%s%c, which is '%s'\n",
5183 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5192 value
= do_spec_1 (name
, 0, NULL
);
5198 char *x
= alloca (strlen (name
) * 2 + 1);
5200 const char *y
= name
;
5203 /* Copy all of NAME into BUF, but put __ after
5204 every -D and at the end of each arg. */
5207 if (! strncmp (y
, "-D", 2))
5218 && (*y
== ' ' || *y
== '\t' || *y
== '='
5219 || *y
== '}' || *y
== 0))
5232 value
= do_spec_1 (buf
, 0, NULL
);
5238 /* Discard the closing paren or bracket. */
5245 error ("spec failure: unrecognized spec option '%c'", c
);
5251 /* Backslash: treat next character as ordinary. */
5256 /* Ordinary character: put it into the current argument. */
5257 obstack_1grow (&obstack
, c
);
5261 /* End of string. If we are processing a spec function, we need to
5262 end any pending argument. */
5263 if (processing_spec_function
&& arg_going
)
5265 obstack_1grow (&obstack
, 0);
5266 string
= obstack_finish (&obstack
);
5267 if (this_is_library_file
)
5268 string
= find_file (string
);
5269 store_arg (string
, delete_this_arg
, this_is_output_file
);
5270 if (this_is_output_file
)
5271 outfiles
[input_file_number
] = string
;
5278 /* Look up a spec function. */
5280 static const struct spec_function
*
5281 lookup_spec_function (const char *name
)
5283 static const struct spec_function
* const spec_function_tables
[] =
5285 static_spec_functions
,
5286 lang_specific_spec_functions
,
5288 const struct spec_function
*sf
;
5291 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5293 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5294 if (strcmp (sf
->name
, name
) == 0)
5301 /* Evaluate a spec function. */
5304 eval_spec_function (const char *func
, const char *args
)
5306 const struct spec_function
*sf
;
5307 const char *funcval
;
5309 /* Saved spec processing context. */
5310 int save_argbuf_index
;
5311 int save_argbuf_length
;
5312 const char **save_argbuf
;
5315 int save_delete_this_arg
;
5316 int save_this_is_output_file
;
5317 int save_this_is_library_file
;
5318 int save_input_from_pipe
;
5319 const char *save_suffix_subst
;
5322 sf
= lookup_spec_function (func
);
5324 fatal ("unknown spec function '%s'", func
);
5326 /* Push the spec processing context. */
5327 save_argbuf_index
= argbuf_index
;
5328 save_argbuf_length
= argbuf_length
;
5329 save_argbuf
= argbuf
;
5331 save_arg_going
= arg_going
;
5332 save_delete_this_arg
= delete_this_arg
;
5333 save_this_is_output_file
= this_is_output_file
;
5334 save_this_is_library_file
= this_is_library_file
;
5335 save_input_from_pipe
= input_from_pipe
;
5336 save_suffix_subst
= suffix_subst
;
5338 /* Create a new spec processing context, and build the function
5342 if (do_spec_2 (args
) < 0)
5343 fatal ("error in args to spec function '%s'", func
);
5345 /* argbuf_index is an index for the next argument to be inserted, and
5346 so contains the count of the args already inserted. */
5348 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5350 /* Pop the spec processing context. */
5351 argbuf_index
= save_argbuf_index
;
5352 argbuf_length
= save_argbuf_length
;
5354 argbuf
= save_argbuf
;
5356 arg_going
= save_arg_going
;
5357 delete_this_arg
= save_delete_this_arg
;
5358 this_is_output_file
= save_this_is_output_file
;
5359 this_is_library_file
= save_this_is_library_file
;
5360 input_from_pipe
= save_input_from_pipe
;
5361 suffix_subst
= save_suffix_subst
;
5366 /* Handle a spec function call of the form:
5370 ARGS is processed as a spec in a separate context and split into an
5371 argument vector in the normal fashion. The function returns a string
5372 containing a spec which we then process in the caller's context, or
5373 NULL if no processing is required. */
5376 handle_spec_function (const char *p
)
5379 const char *endp
, *funcval
;
5382 processing_spec_function
++;
5384 /* Get the function name. */
5385 for (endp
= p
; *endp
!= '\0'; endp
++)
5387 if (*endp
== '(') /* ) */
5389 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5390 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5391 fatal ("malformed spec function name");
5393 if (*endp
!= '(') /* ) */
5394 fatal ("no arguments for spec function");
5395 func
= save_string (p
, endp
- p
);
5398 /* Get the arguments. */
5399 for (count
= 0; *endp
!= '\0'; endp
++)
5408 else if (*endp
== '(') /* ) */
5413 fatal ("malformed spec function arguments");
5414 args
= save_string (p
, endp
- p
);
5417 /* p now points to just past the end of the spec function expression. */
5419 funcval
= eval_spec_function (func
, args
);
5420 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5426 processing_spec_function
--;
5431 /* Inline subroutine of handle_braces. Returns true if the current
5432 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5434 input_suffix_matches (const char *atom
, const char *end_atom
)
5436 /* We special case the semantics of {.s:...} and {.S:...} and their
5437 negative variants. Instead of testing the input filename suffix,
5438 we test whether the input source file is an assembler file or an
5439 assembler-with-cpp file respectively. This allows us to correctly
5440 handle the -x command line option. */
5442 if (atom
+ 1 == end_atom
5443 && input_file_compiler
5444 && input_file_compiler
->suffix
)
5447 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5449 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5452 return (input_suffix
5453 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5454 && input_suffix
[end_atom
- atom
] == '\0');
5457 /* Inline subroutine of handle_braces. Returns true if a switch
5458 matching the atom bracketed by ATOM and END_ATOM appeared on the
5461 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5464 int len
= end_atom
- atom
;
5465 int plen
= starred
? len
: -1;
5467 for (i
= 0; i
< n_switches
; i
++)
5468 if (!strncmp (switches
[i
].part1
, atom
, len
)
5469 && (starred
|| switches
[i
].part1
[len
] == '\0')
5470 && check_live_switch (i
, plen
))
5476 /* Inline subroutine of handle_braces. Mark all of the switches which
5477 match ATOM (extends to END_ATOM; STARRED indicates whether there
5478 was a star after the atom) for later processing. */
5480 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5483 int len
= end_atom
- atom
;
5484 int plen
= starred
? len
: -1;
5486 for (i
= 0; i
< n_switches
; i
++)
5487 if (!strncmp (switches
[i
].part1
, atom
, len
)
5488 && (starred
|| switches
[i
].part1
[len
] == '\0')
5489 && check_live_switch (i
, plen
))
5490 switches
[i
].ordering
= 1;
5493 /* Inline subroutine of handle_braces. Process all the currently
5494 marked switches through give_switch, and clear the marks. */
5496 process_marked_switches (void)
5500 for (i
= 0; i
< n_switches
; i
++)
5501 if (switches
[i
].ordering
== 1)
5503 switches
[i
].ordering
= 0;
5508 /* Handle a %{ ... } construct. P points just inside the leading {.
5509 Returns a pointer one past the end of the brace block, or 0
5510 if we call do_spec_1 and that returns -1. */
5513 handle_braces (const char *p
)
5515 const char *atom
, *end_atom
;
5516 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5517 const char *orig
= p
;
5524 bool a_must_be_last
= false;
5525 bool ordered_set
= false;
5526 bool disjunct_set
= false;
5527 bool disj_matched
= false;
5528 bool disj_starred
= true;
5529 bool n_way_choice
= false;
5530 bool n_way_matched
= false;
5532 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5539 /* Scan one "atom" (S in the description above of %{}, possibly
5540 with !, ., or * modifiers). */
5541 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5545 p
++, a_is_negated
= true;
5549 p
++, a_is_suffix
= true;
5552 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5553 || *p
== ',' || *p
== '.' || *p
== '@')
5558 p
++, a_is_starred
= 1;
5564 /* Substitute the switch(es) indicated by the current atom. */
5566 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5567 || atom
== end_atom
)
5570 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5573 process_marked_switches ();
5577 /* Substitute some text if the current atom appears as a switch
5579 disjunct_set
= true;
5583 if (atom
== end_atom
)
5585 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5586 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5589 /* An empty term may appear as the last choice of an
5590 N-way choice set; it means "otherwise". */
5591 a_must_be_last
= true;
5592 disj_matched
= !n_way_matched
;
5593 disj_starred
= false;
5597 if (a_is_suffix
&& a_is_starred
)
5601 disj_starred
= false;
5603 /* Don't bother testing this atom if we already have a
5605 if (!disj_matched
&& !n_way_matched
)
5608 a_matched
= input_suffix_matches (atom
, end_atom
);
5610 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5612 if (a_matched
!= a_is_negated
)
5614 disj_matched
= true;
5616 d_end_atom
= end_atom
;
5623 /* Found the body, that is, the text to substitute if the
5624 current disjunction matches. */
5625 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5626 disj_matched
&& !n_way_matched
);
5630 /* If we have an N-way choice, reset state for the next
5634 n_way_choice
= true;
5635 n_way_matched
|= disj_matched
;
5636 disj_matched
= false;
5637 disj_starred
= true;
5638 d_atom
= d_end_atom
= NULL
;
5647 while (*p
++ != '}');
5652 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5657 /* Subroutine of handle_braces. Scan and process a brace substitution body
5658 (X in the description of %{} syntax). P points one past the colon;
5659 ATOM and END_ATOM bracket the first atom which was found to be true
5660 (present) in the current disjunction; STARRED indicates whether all
5661 the atoms in the current disjunction were starred (for syntax validation);
5662 MATCHED indicates whether the disjunction matched or not, and therefore
5663 whether or not the body is to be processed through do_spec_1 or just
5664 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5668 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5669 int starred
, int matched
)
5671 const char *body
, *end_body
;
5672 unsigned int nesting_level
;
5673 bool have_subst
= false;
5675 /* Locate the closing } or ;, honoring nested braces.
5676 Trim trailing whitespace. */
5685 if (!--nesting_level
)
5688 else if (*p
== ';' && nesting_level
== 1)
5690 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5692 else if (*p
== '\0')
5698 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5701 if (have_subst
&& !starred
)
5706 /* Copy the substitution body to permanent storage and execute it.
5707 If have_subst is false, this is a simple matter of running the
5708 body through do_spec_1... */
5709 char *string
= save_string (body
, end_body
- body
);
5712 if (do_spec_1 (string
, 0, NULL
) < 0)
5717 /* ... but if have_subst is true, we have to process the
5718 body once for each matching switch, with %* set to the
5719 variant part of the switch. */
5720 unsigned int hard_match_len
= end_atom
- atom
;
5723 for (i
= 0; i
< n_switches
; i
++)
5724 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5725 && check_live_switch (i
, hard_match_len
))
5727 if (do_spec_1 (string
, 0,
5728 &switches
[i
].part1
[hard_match_len
]) < 0)
5730 /* Pass any arguments this switch has. */
5732 suffix_subst
= NULL
;
5740 fatal ("braced spec body '%s' is invalid", body
);
5743 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5744 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5745 spec, or -1 if either exact match or %* is used.
5747 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5748 whose value does not begin with "no-" is obsoleted by the same value
5749 with the "no-", similarly for a switch with the "no-" prefix. */
5752 check_live_switch (int switchnum
, int prefix_length
)
5754 const char *name
= switches
[switchnum
].part1
;
5757 /* In the common case of {<at-most-one-letter>*}, a negating
5758 switch would always match, so ignore that case. We will just
5759 send the conflicting switches to the compiler phase. */
5760 if (prefix_length
>= 0 && prefix_length
<= 1)
5763 /* If we already processed this switch and determined if it was
5764 live or not, return our past determination. */
5765 if (switches
[switchnum
].live_cond
!= 0)
5766 return switches
[switchnum
].live_cond
> 0;
5768 /* Now search for duplicate in a manner that depends on the name. */
5772 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5773 if (switches
[i
].part1
[0] == 'O')
5775 switches
[switchnum
].validated
= 1;
5776 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5781 case 'W': case 'f': case 'm':
5782 if (! strncmp (name
+ 1, "no-", 3))
5784 /* We have Xno-YYY, search for XYYY. */
5785 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5786 if (switches
[i
].part1
[0] == name
[0]
5787 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5789 switches
[switchnum
].validated
= 1;
5790 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5796 /* We have XYYY, search for Xno-YYY. */
5797 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5798 if (switches
[i
].part1
[0] == name
[0]
5799 && switches
[i
].part1
[1] == 'n'
5800 && switches
[i
].part1
[2] == 'o'
5801 && switches
[i
].part1
[3] == '-'
5802 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5804 switches
[switchnum
].validated
= 1;
5805 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5812 /* Otherwise the switch is live. */
5813 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5817 /* Pass a switch to the current accumulating command
5818 in the same form that we received it.
5819 SWITCHNUM identifies the switch; it is an index into
5820 the vector of switches gcc received, which is `switches'.
5821 This cannot fail since it never finishes a command line.
5823 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5826 give_switch (int switchnum
, int omit_first_word
)
5828 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5831 if (!omit_first_word
)
5833 do_spec_1 ("-", 0, NULL
);
5834 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5837 if (switches
[switchnum
].args
!= 0)
5840 for (p
= switches
[switchnum
].args
; *p
; p
++)
5842 const char *arg
= *p
;
5844 do_spec_1 (" ", 0, NULL
);
5847 unsigned length
= strlen (arg
);
5850 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5851 if (arg
[length
] == '.')
5853 ((char *)arg
)[length
] = 0;
5857 do_spec_1 (arg
, 1, NULL
);
5859 ((char *)arg
)[length
] = '.';
5860 do_spec_1 (suffix_subst
, 1, NULL
);
5863 do_spec_1 (arg
, 1, NULL
);
5867 do_spec_1 (" ", 0, NULL
);
5868 switches
[switchnum
].validated
= 1;
5871 /* Search for a file named NAME trying various prefixes including the
5872 user's -B prefix and some standard ones.
5873 Return the absolute file name found. If nothing is found, return NAME. */
5876 find_file (const char *name
)
5880 /* Try multilib_dir if it is defined. */
5881 if (multilib_os_dir
!= NULL
)
5883 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5885 /* If we don't find it in the multi library dir, then fall
5886 through and look for it in the normal places. */
5887 if (newname
!= NULL
)
5891 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5892 return newname
? newname
: name
;
5895 /* Determine whether a directory exists. If LINKER, return 0 for
5896 certain fixed names not needed by the linker. If not LINKER, it is
5897 only important to return 0 if the host machine has a small ARG_MAX
5901 is_directory (const char *path1
, const char *path2
, int linker
)
5903 int len1
= strlen (path1
);
5904 int len2
= strlen (path2
);
5905 char *path
= alloca (3 + len1
+ len2
);
5909 #ifndef SMALL_ARG_MAX
5914 /* Construct the path from the two parts. Ensure the string ends with "/.".
5915 The resulting path will be a directory even if the given path is a
5917 memcpy (path
, path1
, len1
);
5918 memcpy (path
+ len1
, path2
, len2
);
5919 cp
= path
+ len1
+ len2
;
5920 if (!IS_DIR_SEPARATOR (cp
[-1]))
5921 *cp
++ = DIR_SEPARATOR
;
5925 /* Exclude directories that the linker is known to search. */
5928 && strcmp (path
, concat (dir_separator_str
, "lib",
5929 dir_separator_str
, ".", NULL
)) == 0)
5931 && strcmp (path
, concat (dir_separator_str
, "usr",
5932 dir_separator_str
, "lib",
5933 dir_separator_str
, ".", NULL
)) == 0)))
5936 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5939 /* Set up the various global variables to indicate that we're processing
5940 the input file named FILENAME. */
5943 set_input (const char *filename
)
5947 input_filename
= filename
;
5948 input_filename_length
= strlen (input_filename
);
5950 input_basename
= input_filename
;
5951 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5952 /* Skip drive name so 'x:foo' is handled properly. */
5953 if (input_basename
[1] == ':')
5954 input_basename
+= 2;
5956 for (p
= input_basename
; *p
; p
++)
5957 if (IS_DIR_SEPARATOR (*p
))
5958 input_basename
= p
+ 1;
5960 /* Find a suffix starting with the last period,
5961 and set basename_length to exclude that suffix. */
5962 basename_length
= strlen (input_basename
);
5963 suffixed_basename_length
= basename_length
;
5964 p
= input_basename
+ basename_length
;
5965 while (p
!= input_basename
&& *p
!= '.')
5967 if (*p
== '.' && p
!= input_basename
)
5969 basename_length
= p
- input_basename
;
5970 input_suffix
= p
+ 1;
5975 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5976 we will need to do a stat on the input_filename. The
5977 INPUT_STAT_SET signals that the stat is needed. */
5981 /* On fatal signals, delete all the temporary files. */
5984 fatal_error (int signum
)
5986 signal (signum
, SIG_DFL
);
5987 delete_failure_queue ();
5988 delete_temp_files ();
5989 /* Get the same signal again, this time not handled,
5990 so its normal effect occurs. */
5991 kill (getpid (), signum
);
5994 extern int main (int, const char **);
5997 main (int argc
, const char **argv
)
6001 int linker_was_run
= 0;
6002 int lang_n_infiles
= 0;
6003 int num_linker_inputs
= 0;
6004 char *explicit_link_files
;
6007 struct user_specs
*uptr
;
6009 p
= argv
[0] + strlen (argv
[0]);
6010 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6014 xmalloc_set_program_name (programname
);
6016 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6017 /* Perform host dependent initialization when needed. */
6018 GCC_DRIVER_HOST_INITIALIZATION
;
6021 /* Unlock the stdio streams. */
6022 unlock_std_streams ();
6024 gcc_init_libintl ();
6026 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6027 signal (SIGINT
, fatal_error
);
6029 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6030 signal (SIGHUP
, fatal_error
);
6032 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6033 signal (SIGTERM
, fatal_error
);
6035 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6036 signal (SIGPIPE
, fatal_error
);
6039 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6040 receive the signal. A different setting is inheritable */
6041 signal (SIGCHLD
, SIG_DFL
);
6044 /* Allocate the argument vector. */
6047 obstack_init (&obstack
);
6049 /* Build multilib_select, et. al from the separate lines that make up each
6050 multilib selection. */
6052 const char *const *q
= multilib_raw
;
6055 obstack_init (&multilib_obstack
);
6056 while ((p
= *q
++) != (char *) 0)
6057 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6059 obstack_1grow (&multilib_obstack
, 0);
6060 multilib_select
= obstack_finish (&multilib_obstack
);
6062 q
= multilib_matches_raw
;
6063 while ((p
= *q
++) != (char *) 0)
6064 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6066 obstack_1grow (&multilib_obstack
, 0);
6067 multilib_matches
= obstack_finish (&multilib_obstack
);
6069 q
= multilib_exclusions_raw
;
6070 while ((p
= *q
++) != (char *) 0)
6071 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6073 obstack_1grow (&multilib_obstack
, 0);
6074 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6077 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6080 obstack_1grow (&multilib_obstack
, ' ');
6081 obstack_grow (&multilib_obstack
,
6082 multilib_defaults_raw
[i
],
6083 strlen (multilib_defaults_raw
[i
]));
6087 obstack_1grow (&multilib_obstack
, 0);
6088 multilib_defaults
= obstack_finish (&multilib_obstack
);
6091 /* Set up to remember the pathname of gcc and any options
6092 needed for collect. We use argv[0] instead of programname because
6093 we need the complete pathname. */
6094 obstack_init (&collect_obstack
);
6095 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6096 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6097 putenv (obstack_finish (&collect_obstack
));
6099 #ifdef INIT_ENVIRONMENT
6100 /* Set up any other necessary machine specific environment variables. */
6101 putenv (INIT_ENVIRONMENT
);
6104 /* Make a table of what switches there are (switches, n_switches).
6105 Make a table of specified input files (infiles, n_infiles).
6106 Decode switches that are handled locally. */
6108 process_command (argc
, argv
);
6110 /* Initialize the vector of specs to just the default.
6111 This means one element containing 0s, as a terminator. */
6113 compilers
= xmalloc (sizeof default_compilers
);
6114 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6115 n_compilers
= n_default_compilers
;
6117 /* Read specs from a file if there is one. */
6119 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6120 spec_version
, dir_separator_str
, NULL
);
6121 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6123 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6124 /* Read the specs file unless it is a default one. */
6125 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6126 read_specs (specs_file
, TRUE
);
6130 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6131 for any override of as, ld and libraries. */
6132 specs_file
= alloca (strlen (standard_exec_prefix
)
6133 + strlen (just_machine_suffix
) + sizeof ("specs"));
6135 strcpy (specs_file
, standard_exec_prefix
);
6136 strcat (specs_file
, just_machine_suffix
);
6137 strcat (specs_file
, "specs");
6138 if (access (specs_file
, R_OK
) == 0)
6139 read_specs (specs_file
, TRUE
);
6141 /* Process any configure-time defaults specified for the command line
6142 options, via OPTION_DEFAULT_SPECS. */
6143 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6144 do_option_spec (option_default_specs
[i
].name
,
6145 option_default_specs
[i
].spec
);
6147 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6148 of the command line. */
6150 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6151 do_self_spec (driver_self_specs
[i
]);
6153 /* If not cross-compiling, look for executables in the standard
6155 if (*cross_compile
== '0')
6157 if (*md_exec_prefix
)
6159 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6160 PREFIX_PRIORITY_LAST
, 0, 0);
6164 /* Process sysroot_suffix_spec. */
6165 if (*sysroot_suffix_spec
!= 0
6166 && do_spec_2 (sysroot_suffix_spec
) == 0)
6168 if (argbuf_index
> 1)
6169 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6170 else if (argbuf_index
== 1)
6171 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6174 /* Process sysroot_hdrs_suffix_spec. */
6175 if (*sysroot_hdrs_suffix_spec
!= 0
6176 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6178 if (argbuf_index
> 1)
6179 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6180 else if (argbuf_index
== 1)
6181 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6184 /* Look for startfiles in the standard places. */
6185 if (*startfile_prefix_spec
!= 0
6186 && do_spec_2 (startfile_prefix_spec
) == 0
6187 && do_spec_1 (" ", 0, NULL
) == 0)
6190 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6191 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6192 PREFIX_PRIORITY_LAST
, 0, 1);
6194 /* We should eventually get rid of all these and stick to
6195 startfile_prefix_spec exclusively. */
6196 else if (*cross_compile
== '0' || target_system_root
)
6198 if (*md_exec_prefix
)
6199 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6200 PREFIX_PRIORITY_LAST
, 0, 1);
6202 if (*md_startfile_prefix
)
6203 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6204 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6206 if (*md_startfile_prefix_1
)
6207 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6208 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6210 /* If standard_startfile_prefix is relative, base it on
6211 standard_exec_prefix. This lets us move the installed tree
6212 as a unit. If GCC_EXEC_PREFIX is defined, base
6213 standard_startfile_prefix on that as well.
6215 If the prefix is relative, only search it for native compilers;
6216 otherwise we will search a directory containing host libraries. */
6217 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6218 add_sysrooted_prefix (&startfile_prefixes
,
6219 standard_startfile_prefix
, "BINUTILS",
6220 PREFIX_PRIORITY_LAST
, 0, 1);
6221 else if (*cross_compile
== '0')
6223 if (gcc_exec_prefix
)
6224 add_prefix (&startfile_prefixes
,
6225 concat (gcc_exec_prefix
, machine_suffix
,
6226 standard_startfile_prefix
, NULL
),
6227 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6228 add_prefix (&startfile_prefixes
,
6229 concat (standard_exec_prefix
,
6231 standard_startfile_prefix
, NULL
),
6232 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6235 if (*standard_startfile_prefix_1
)
6236 add_sysrooted_prefix (&startfile_prefixes
,
6237 standard_startfile_prefix_1
, "BINUTILS",
6238 PREFIX_PRIORITY_LAST
, 0, 1);
6239 if (*standard_startfile_prefix_2
)
6240 add_sysrooted_prefix (&startfile_prefixes
,
6241 standard_startfile_prefix_2
, "BINUTILS",
6242 PREFIX_PRIORITY_LAST
, 0, 1);
6245 /* Process any user specified specs in the order given on the command
6247 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6249 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6251 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6254 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6255 if (gcc_exec_prefix
)
6256 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6257 spec_version
, dir_separator_str
, NULL
);
6259 /* Now we have the specs.
6260 Set the `valid' bits for switches that match anything in any spec. */
6262 validate_all_switches ();
6264 /* Now that we have the switches and the specs, set
6265 the subdirectory based on the options. */
6266 set_multilib_dir ();
6268 /* Warn about any switches that no pass was interested in. */
6270 for (i
= 0; (int) i
< n_switches
; i
++)
6271 if (! switches
[i
].validated
)
6272 error ("unrecognized option '-%s'", switches
[i
].part1
);
6274 /* Obey some of the options. */
6276 if (print_search_dirs
)
6278 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6279 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6280 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6284 if (print_file_name
)
6286 printf ("%s\n", find_file (print_file_name
));
6290 if (print_prog_name
)
6292 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6293 printf ("%s\n", (newname
? newname
: print_prog_name
));
6297 if (print_multi_lib
)
6299 print_multilib_info ();
6303 if (print_multi_directory
)
6305 if (multilib_dir
== NULL
)
6308 printf ("%s\n", multilib_dir
);
6312 if (print_multi_os_directory
)
6314 if (multilib_os_dir
== NULL
)
6317 printf ("%s\n", multilib_os_dir
);
6321 if (target_help_flag
)
6323 /* Print if any target specific options. */
6325 /* We do not exit here. Instead we have created a fake input file
6326 called 'target-dummy' which needs to be compiled, and we pass this
6327 on to the various sub-processes, along with the --target-help
6331 if (print_help_list
)
6337 printf (_("\nFor bug reporting instructions, please see:\n"));
6338 printf ("%s.\n", bug_report_url
);
6343 /* We do not exit here. Instead we have created a fake input file
6344 called 'help-dummy' which needs to be compiled, and we pass this
6345 on the various sub-processes, along with the --help switch. */
6353 notice ("Target: %s\n", spec_machine
);
6354 notice ("Configured with: %s\n", configuration_arguments
);
6356 #ifdef THREAD_MODEL_SPEC
6357 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6358 but there's no point in doing all this processing just to get
6359 thread_model back. */
6360 obstack_init (&obstack
);
6361 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6362 obstack_1grow (&obstack
, '\0');
6363 thrmod
= obstack_finish (&obstack
);
6365 thrmod
= thread_model
;
6368 notice ("Thread model: %s\n", thrmod
);
6370 /* compiler_version is truncated at the first space when initialized
6371 from version string, so truncate version_string at the first space
6372 before comparing. */
6373 for (n
= 0; version_string
[n
]; n
++)
6374 if (version_string
[n
] == ' ')
6377 if (! strncmp (version_string
, compiler_version
, n
)
6378 && compiler_version
[n
] == 0)
6379 notice ("gcc version %s\n", version_string
);
6381 notice ("gcc driver version %s executing gcc version %s\n",
6382 version_string
, compiler_version
);
6388 if (n_infiles
== added_libraries
)
6389 fatal ("no input files");
6391 /* Make a place to record the compiler output file names
6392 that correspond to the input files. */
6395 i
+= lang_specific_extra_outfiles
;
6396 outfiles
= xcalloc (i
, sizeof (char *));
6398 /* Record which files were specified explicitly as link input. */
6400 explicit_link_files
= xcalloc (1, n_infiles
);
6403 combine_inputs
= true;
6405 combine_inputs
= false;
6407 for (i
= 0; (int) i
< n_infiles
; i
++)
6409 const char *name
= infiles
[i
].name
;
6410 struct compiler
*compiler
= lookup_compiler (name
,
6412 infiles
[i
].language
);
6414 if (compiler
&& !(compiler
->combinable
))
6415 combine_inputs
= false;
6417 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6418 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6419 infiles
[i
].incompiler
= compiler
;
6423 input_file_compiler
= compiler
;
6424 infiles
[i
].incompiler
= compiler
;
6428 /* Since there is no compiler for this input file, assume it is a
6430 explicit_link_files
[i
] = 1;
6431 infiles
[i
].incompiler
= NULL
;
6433 infiles
[i
].compiled
= false;
6434 infiles
[i
].preprocessed
= false;
6437 if (combine_flag
&& save_temps_flag
)
6439 bool save_combine_inputs
= combine_inputs
;
6440 /* Must do a separate pre-processing pass for C & Objective-C files, to
6441 obtain individual .i files. */
6443 combine_inputs
= false;
6444 for (i
= 0; (int) i
< n_infiles
; i
++)
6446 int this_file_error
= 0;
6448 input_file_number
= i
;
6449 set_input (infiles
[i
].name
);
6450 if (infiles
[i
].incompiler
6451 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6452 input_file_compiler
= infiles
[i
].incompiler
;
6456 if (input_file_compiler
)
6458 if (input_file_compiler
->spec
[0] == '#')
6460 error ("%s: %s compiler not installed on this system",
6461 input_filename
, &input_file_compiler
->spec
[1]);
6462 this_file_error
= 1;
6466 value
= do_spec (input_file_compiler
->spec
);
6467 infiles
[i
].preprocessed
= true;
6468 if (!have_o_argbuf_index
)
6469 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6470 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6471 infiles
[i
].incompiler
6472 = lookup_compiler (infiles
[i
].name
,
6473 strlen (infiles
[i
].name
),
6474 infiles
[i
].language
);
6477 this_file_error
= 1;
6481 if (this_file_error
)
6483 delete_failure_queue ();
6487 clear_failure_queue ();
6489 combine_inputs
= save_combine_inputs
;
6492 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6493 fatal ("cannot specify -o with -c or -S with multiple files");
6495 for (i
= 0; (int) i
< n_infiles
; i
++)
6497 int this_file_error
= 0;
6499 /* Tell do_spec what to substitute for %i. */
6501 input_file_number
= i
;
6502 set_input (infiles
[i
].name
);
6504 if (infiles
[i
].compiled
)
6507 /* Use the same thing in %o, unless cp->spec says otherwise. */
6509 outfiles
[i
] = input_filename
;
6511 /* Figure out which compiler from the file's suffix. */
6513 if (! combine_inputs
)
6515 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6516 infiles
[i
].language
);
6518 input_file_compiler
= infiles
[i
].incompiler
;
6520 if (input_file_compiler
)
6522 /* Ok, we found an applicable compiler. Run its spec. */
6524 if (input_file_compiler
->spec
[0] == '#')
6526 error ("%s: %s compiler not installed on this system",
6527 input_filename
, &input_file_compiler
->spec
[1]);
6528 this_file_error
= 1;
6532 value
= do_spec (input_file_compiler
->spec
);
6533 infiles
[i
].compiled
= true;
6535 this_file_error
= 1;
6539 /* If this file's name does not contain a recognized suffix,
6540 record it as explicit linker input. */
6543 explicit_link_files
[i
] = 1;
6545 /* Clear the delete-on-failure queue, deleting the files in it
6546 if this compilation failed. */
6548 if (this_file_error
)
6550 delete_failure_queue ();
6553 /* If this compilation succeeded, don't delete those files later. */
6554 clear_failure_queue ();
6557 /* Reset the output file name to the first input file name, for use
6558 with %b in LINK_SPEC on a target that prefers not to emit a.out
6561 set_input (infiles
[0].name
);
6563 if (error_count
== 0)
6565 /* Make sure INPUT_FILE_NUMBER points to first available open
6567 input_file_number
= n_infiles
;
6568 if (lang_specific_pre_link ())
6572 /* Determine if there are any linker input files. */
6573 num_linker_inputs
= 0;
6574 for (i
= 0; (int) i
< n_infiles
; i
++)
6575 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6576 num_linker_inputs
++;
6578 /* Run ld to link all the compiler output files. */
6580 if (num_linker_inputs
> 0 && error_count
== 0)
6582 int tmp
= execution_count
;
6584 /* We'll use ld if we can't find collect2. */
6585 if (! strcmp (linker_name_spec
, "collect2"))
6587 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6589 linker_name_spec
= "ld";
6591 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6593 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6594 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6596 value
= do_spec (link_command_spec
);
6599 linker_was_run
= (tmp
!= execution_count
);
6602 /* If options said don't run linker,
6603 complain about input files to be given to the linker. */
6605 if (! linker_was_run
&& error_count
== 0)
6606 for (i
= 0; (int) i
< n_infiles
; i
++)
6607 if (explicit_link_files
[i
])
6608 error ("%s: linker input file unused because linking not done",
6611 /* Delete some or all of the temporary files we made. */
6614 delete_failure_queue ();
6615 delete_temp_files ();
6617 if (print_help_list
)
6619 printf (("\nFor bug reporting instructions, please see:\n"));
6620 printf ("%s\n", bug_report_url
);
6623 return (signal_count
!= 0 ? 2
6624 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6628 /* Find the proper compilation spec for the file name NAME,
6629 whose length is LENGTH. LANGUAGE is the specified language,
6630 or 0 if this file is to be passed to the linker. */
6632 static struct compiler
*
6633 lookup_compiler (const char *name
, size_t length
, const char *language
)
6635 struct compiler
*cp
;
6637 /* If this was specified by the user to be a linker input, indicate that. */
6638 if (language
!= 0 && language
[0] == '*')
6641 /* Otherwise, look for the language, if one is spec'd. */
6644 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6645 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6648 error ("language %s not recognized", language
);
6652 /* Look for a suffix. */
6653 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6655 if (/* The suffix `-' matches only the file name `-'. */
6656 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6657 || (strlen (cp
->suffix
) < length
6658 /* See if the suffix matches the end of NAME. */
6659 && !strcmp (cp
->suffix
,
6660 name
+ length
- strlen (cp
->suffix
))
6665 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6666 /* Look again, but case-insensitively this time. */
6668 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6670 if (/* The suffix `-' matches only the file name `-'. */
6671 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6672 || (strlen (cp
->suffix
) < length
6673 /* See if the suffix matches the end of NAME. */
6674 && ((!strcmp (cp
->suffix
,
6675 name
+ length
- strlen (cp
->suffix
))
6676 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6677 && !strcasecmp (cp
->suffix
,
6678 name
+ length
- strlen (cp
->suffix
)))
6684 if (cp
>= compilers
)
6686 if (cp
->spec
[0] != '@')
6687 /* A non-alias entry: return it. */
6690 /* An alias entry maps a suffix to a language.
6691 Search for the language; pass 0 for NAME and LENGTH
6692 to avoid infinite recursion if language not found. */
6693 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6699 save_string (const char *s
, int len
)
6701 char *result
= xmalloc (len
+ 1);
6703 memcpy (result
, s
, len
);
6709 pfatal_with_name (const char *name
)
6711 perror_with_name (name
);
6712 delete_temp_files ();
6717 perror_with_name (const char *name
)
6719 error ("%s: %s", name
, xstrerror (errno
));
6723 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6727 int save_errno
= errno
;
6729 /* Space for trailing '\0' is in %s. */
6730 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6731 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6737 pfatal_with_name (errmsg_fmt
);
6740 /* Output an error message and exit. */
6743 fancy_abort (const char *file
, int line
, const char *func
)
6745 fatal ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6748 /* Output an error message and exit. */
6751 fatal (const char *cmsgid
, ...)
6755 va_start (ap
, cmsgid
);
6757 fprintf (stderr
, "%s: ", programname
);
6758 vfprintf (stderr
, _(cmsgid
), ap
);
6760 fprintf (stderr
, "\n");
6761 delete_temp_files ();
6765 /* The argument is actually c-format, not gcc-internal-format,
6766 but because functions with identical names are used through
6767 the rest of the compiler with gcc-internal-format, we just
6768 need to hope all users of these functions use the common
6769 subset between c-format and gcc-internal-format. */
6772 error (const char *gmsgid
, ...)
6776 va_start (ap
, gmsgid
);
6777 fprintf (stderr
, "%s: ", programname
);
6778 vfprintf (stderr
, _(gmsgid
), ap
);
6781 fprintf (stderr
, "\n");
6785 notice (const char *cmsgid
, ...)
6789 va_start (ap
, cmsgid
);
6790 vfprintf (stderr
, _(cmsgid
), ap
);
6795 validate_switches_from_spec (const char *spec
)
6797 const char *p
= spec
;
6800 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6801 /* We have a switch spec. */
6802 p
= validate_switches (p
+ 1);
6806 validate_all_switches (void)
6808 struct compiler
*comp
;
6809 struct spec_list
*spec
;
6811 for (comp
= compilers
; comp
->spec
; comp
++)
6812 validate_switches_from_spec (comp
->spec
);
6814 /* Look through the linked list of specs read from the specs file. */
6815 for (spec
= specs
; spec
; spec
= spec
->next
)
6816 validate_switches_from_spec (*spec
->ptr_spec
);
6818 validate_switches_from_spec (link_command_spec
);
6821 /* Look at the switch-name that comes after START
6822 and mark as valid all supplied switches that match it. */
6825 validate_switches (const char *start
)
6827 const char *p
= start
;
6831 bool suffix
= false;
6832 bool starred
= false;
6834 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6847 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6848 || *p
== ',' || *p
== '.' || *p
== '@')
6853 starred
= true, p
++;
6859 /* Mark all matching switches as valid. */
6860 for (i
= 0; i
< n_switches
; i
++)
6861 if (!strncmp (switches
[i
].part1
, atom
, len
)
6862 && (starred
|| switches
[i
].part1
[len
] == 0))
6863 switches
[i
].validated
= 1;
6867 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6870 if (*p
&& p
[-1] == ':')
6872 while (*p
&& *p
!= ';' && *p
!= '}')
6877 if (*p
== '{' || *p
== '<')
6878 p
= validate_switches (p
+1);
6879 else if (p
[0] == 'W' && p
[1] == '{')
6880 p
= validate_switches (p
+2);
6887 if (*p
&& p
[-1] == ';')
6901 static struct mdswitchstr
*mdswitches
;
6902 static int n_mdswitches
;
6904 /* Check whether a particular argument was used. The first time we
6905 canonicalize the switches to keep only the ones we care about. */
6908 used_arg (const char *p
, int len
)
6913 const char *replace
;
6918 static struct mswitchstr
*mswitches
;
6919 static int n_mswitches
;
6924 struct mswitchstr
*matches
;
6928 /* Break multilib_matches into the component strings of string
6929 and replacement string. */
6930 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6934 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6936 q
= multilib_matches
;
6945 fatal ("multilib spec '%s' is invalid", multilib_matches
);
6949 matches
[i
].len
= q
- matches
[i
].str
;
6951 matches
[i
].replace
= ++q
;
6952 while (*q
!= ';' && *q
!= '\0')
6955 goto invalid_matches
;
6958 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6964 /* Now build a list of the replacement string for switches that we care
6965 about. Make sure we allocate at least one entry. This prevents
6966 xmalloc from calling fatal, and prevents us from re-executing this
6969 = xmalloc (sizeof (struct mswitchstr
)
6970 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6971 for (i
= 0; i
< n_switches
; i
++)
6972 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6974 int xlen
= strlen (switches
[i
].part1
);
6975 for (j
= 0; j
< cnt
; j
++)
6976 if (xlen
== matches
[j
].len
6977 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6979 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6980 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6981 mswitches
[n_mswitches
].replace
= (char *) 0;
6982 mswitches
[n_mswitches
].rep_len
= 0;
6988 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6989 on the command line nor any options mutually incompatible with
6991 for (i
= 0; i
< n_mdswitches
; i
++)
6995 for (q
= multilib_options
; *q
!= '\0'; q
++)
7001 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7002 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7004 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7011 if (*q
!= ' ' && *q
!= '\0')
7013 while (*r
!= ' ' && *r
!= '\0')
7016 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7019 if (used_arg (r
, q
- r
))
7024 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7025 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7026 mswitches
[n_mswitches
].replace
= (char *) 0;
7027 mswitches
[n_mswitches
].rep_len
= 0;
7040 for (i
= 0; i
< n_mswitches
; i
++)
7041 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7048 default_arg (const char *p
, int len
)
7052 for (i
= 0; i
< n_mdswitches
; i
++)
7053 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7059 /* Work out the subdirectory to use based on the options. The format of
7060 multilib_select is a list of elements. Each element is a subdirectory
7061 name followed by a list of options followed by a semicolon. The format
7062 of multilib_exclusions is the same, but without the preceding
7063 directory. First gcc will check the exclusions, if none of the options
7064 beginning with an exclamation point are present, and all of the other
7065 options are present, then we will ignore this completely. Passing
7066 that, gcc will consider each multilib_select in turn using the same
7067 rules for matching the options. If a match is found, that subdirectory
7071 set_multilib_dir (void)
7074 unsigned int this_path_len
;
7075 const char *this_path
, *this_arg
;
7076 const char *start
, *end
;
7078 int ok
, ndfltok
, first
;
7081 start
= multilib_defaults
;
7082 while (*start
== ' ' || *start
== '\t')
7084 while (*start
!= '\0')
7087 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7089 while (*start
== ' ' || *start
== '\t')
7097 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7098 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7100 while (*start
== ' ' || *start
== '\t')
7106 for (end
= start
+ 1;
7107 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7110 obstack_grow (&multilib_obstack
, start
, end
- start
);
7111 obstack_1grow (&multilib_obstack
, 0);
7112 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7113 mdswitches
[i
++].len
= end
- start
;
7120 p
= multilib_exclusions
;
7123 /* Ignore newlines. */
7130 /* Check the arguments. */
7137 fatal ("multilib exclusions '%s' is invalid",
7138 multilib_exclusions
);
7148 while (*p
!= ' ' && *p
!= ';')
7151 goto invalid_exclusions
;
7155 if (*this_arg
!= '!')
7163 ok
= used_arg (this_arg
, p
- this_arg
);
7178 p
= multilib_select
;
7181 /* Ignore newlines. */
7188 /* Get the initial path. */
7195 fatal ("multilib select '%s' is invalid",
7200 this_path_len
= p
- this_path
;
7202 /* Check the arguments. */
7209 goto invalid_select
;
7218 while (*p
!= ' ' && *p
!= ';')
7221 goto invalid_select
;
7225 if (*this_arg
!= '!')
7233 /* If this is a default argument, we can just ignore it.
7234 This is true even if this_arg begins with '!'. Beginning
7235 with '!' does not mean that this argument is necessarily
7236 inappropriate for this library: it merely means that
7237 there is a more specific library which uses this
7238 argument. If this argument is a default, we need not
7239 consider that more specific library. */
7240 ok
= used_arg (this_arg
, p
- this_arg
);
7247 if (default_arg (this_arg
, p
- this_arg
))
7256 if (this_path_len
!= 1
7257 || this_path
[0] != '.')
7259 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7262 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7263 new_multilib_dir
[this_path_len
] = '\0';
7264 q
= strchr (new_multilib_dir
, ':');
7267 multilib_dir
= new_multilib_dir
;
7274 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7276 while (q
< end
&& *q
!= ':')
7280 char *new_multilib_os_dir
= xmalloc (end
- q
);
7281 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7282 new_multilib_os_dir
[end
- q
- 1] = '\0';
7283 multilib_os_dir
= new_multilib_os_dir
;
7291 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7292 && strcmp (multilib_os_dir
, ".") == 0)
7294 free ((char *) multilib_os_dir
);
7295 multilib_os_dir
= NULL
;
7297 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7298 multilib_os_dir
= multilib_dir
;
7301 /* Print out the multiple library subdirectory selection
7302 information. This prints out a series of lines. Each line looks
7303 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7304 required. Only the desired options are printed out, the negative
7305 matches. The options are print without a leading dash. There are
7306 no spaces to make it easy to use the information in the shell.
7307 Each subdirectory is printed only once. This assumes the ordering
7308 generated by the genmultilib script. Also, we leave out ones that match
7312 print_multilib_info (void)
7314 const char *p
= multilib_select
;
7315 const char *last_path
= 0, *this_path
;
7317 unsigned int last_path_len
= 0;
7322 /* Ignore newlines. */
7329 /* Get the initial path. */
7336 fatal ("multilib select '%s' is invalid", multilib_select
);
7342 /* When --disable-multilib was used but target defines
7343 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7344 to find multilib_os_dir, so skip them from output. */
7345 if (this_path
[0] == '.' && this_path
[1] == ':')
7348 /* Check for matches with the multilib_exclusions. We don't bother
7349 with the '!' in either list. If any of the exclusion rules match
7350 all of its options with the select rule, we skip it. */
7352 const char *e
= multilib_exclusions
;
7353 const char *this_arg
;
7358 /* Ignore newlines. */
7365 /* Check the arguments. */
7374 fatal ("multilib exclusion '%s' is invalid",
7375 multilib_exclusions
);
7386 while (*e
!= ' ' && *e
!= ';')
7389 goto invalid_exclusion
;
7397 int len
= e
- this_arg
;
7400 goto invalid_select
;
7404 while (*q
!= ' ' && *q
!= ';')
7407 goto invalid_select
;
7411 if (! strncmp (arg
, this_arg
,
7412 (len
< q
- arg
) ? q
- arg
: len
)
7413 || default_arg (this_arg
, e
- this_arg
))
7443 /* If this is a duplicate, skip it. */
7444 skip
= (last_path
!= 0
7445 && (unsigned int) (p
- this_path
) == last_path_len
7446 && ! strncmp (last_path
, this_path
, last_path_len
));
7448 last_path
= this_path
;
7449 last_path_len
= p
- this_path
;
7452 /* If this directory requires any default arguments, we can skip
7453 it. We will already have printed a directory identical to
7454 this one which does not require that default argument. */
7465 goto invalid_select
;
7472 while (*q
!= ' ' && *q
!= ';')
7475 goto invalid_select
;
7480 && default_arg (arg
, q
- arg
))
7495 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7506 goto invalid_select
;
7514 use_arg
= *p
!= '!';
7519 while (*p
!= ' ' && *p
!= ';')
7522 goto invalid_select
;
7534 /* If there are extra options, print them now. */
7535 if (multilib_extra
&& *multilib_extra
)
7537 int print_at
= TRUE
;
7540 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7561 /* if-exists built-in spec function.
7563 Checks to see if the file specified by the absolute pathname in
7564 ARGS exists. Returns that pathname if found.
7566 The usual use for this function is to check for a library file
7567 (whose name has been expanded with %s). */
7570 if_exists_spec_function (int argc
, const char **argv
)
7572 /* Must have only one argument. */
7573 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7579 /* if-exists-else built-in spec function.
7581 This is like if-exists, but takes an additional argument which
7582 is returned if the first argument does not exist. */
7585 if_exists_else_spec_function (int argc
, const char **argv
)
7587 /* Must have exactly two arguments. */
7591 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7597 /* replace-outfile built-in spec function.
7598 This looks for the first argument in the outfiles array's name and replaces it
7599 with the second argument. */
7602 replace_outfile_spec_function (int argc
, const char **argv
)
7605 /* Must have exactly two arguments. */
7609 for (i
= 0; i
< n_infiles
; i
++)
7611 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7612 outfiles
[i
] = xstrdup (argv
[1]);