1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
75 #include "coretypes.h"
76 #include "multilib.h" /* before tm.h */
79 #if ! defined( SIGCHLD ) && defined( SIGCLD )
80 # define SIGCHLD SIGCLD
88 #ifdef HAVE_SYS_RESOURCE_H
89 #include <sys/resource.h>
91 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
92 extern int getrusage (int, struct rusage
*);
95 /* By default there is no special suffix for target executables. */
96 /* FIXME: when autoconf is fixed, remove the host check - dj */
97 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
98 #define HAVE_TARGET_EXECUTABLE_SUFFIX
101 /* By default there is no special suffix for host executables. */
102 #ifdef HOST_EXECUTABLE_SUFFIX
103 #define HAVE_HOST_EXECUTABLE_SUFFIX
105 #define HOST_EXECUTABLE_SUFFIX ""
108 /* By default, the suffix for target object files is ".o". */
109 #ifdef TARGET_OBJECT_SUFFIX
110 #define HAVE_TARGET_OBJECT_SUFFIX
112 #define TARGET_OBJECT_SUFFIX ".o"
115 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
117 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
118 #ifndef LIBRARY_PATH_ENV
119 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
123 #define kill(p,s) raise(s)
126 /* If a stage of compilation returns an exit status >= 1,
127 compilation of that file ceases. */
129 #define MIN_FATAL_STATUS 1
131 /* Flag set by cppspec.c to 1. */
134 /* Flag saying to pass the greatest exit code returned by a sub-process
135 to the calling program. */
136 static int pass_exit_codes
;
138 /* Definition of string containing the arguments given to configure. */
139 #include "configargs.h"
141 /* Flag saying to print the directories gcc will search through looking for
142 programs, libraries, etc. */
144 static int print_search_dirs
;
146 /* Flag saying to print the full filename of this file
147 as found through our usual search mechanism. */
149 static const char *print_file_name
= NULL
;
151 /* As print_file_name, but search for executable file. */
153 static const char *print_prog_name
= NULL
;
155 /* Flag saying to print the relative path we'd use to
156 find libgcc.a given the current compiler flags. */
158 static int print_multi_directory
;
160 /* Flag saying to print the relative path we'd use to
161 find OS libraries given the current compiler flags. */
163 static int print_multi_os_directory
;
165 /* Flag saying to print the list of subdirectories and
166 compiler flags used to select them in a standard form. */
168 static int print_multi_lib
;
170 /* Flag saying to print the command line options understood by gcc and its
173 static int print_help_list
;
175 /* Flag indicating whether we should print the command and arguments */
177 static int verbose_flag
;
179 /* Flag indicating whether we should ONLY print the command and
180 arguments (like verbose_flag) without executing the command.
181 Displayed arguments are quoted so that the generated command
182 line is suitable for execution. This is intended for use in
183 shell scripts to capture the driver-generated command line. */
184 static int verbose_only_flag
;
186 /* Flag indicating to print target specific command line options. */
188 static int target_help_flag
;
190 /* Flag indicating whether we should report subprocess execution times
191 (if this is supported by the system - see pexecute.c). */
193 static int report_times
;
195 /* Nonzero means place this string before uses of /, so that include
196 and library files can be found in an alternate location. */
198 #ifdef TARGET_SYSTEM_ROOT
199 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
201 static const char *target_system_root
= 0;
204 /* Nonzero means pass the updated target_system_root to the compiler. */
206 static int target_system_root_changed
;
208 /* Nonzero means append this string to target_system_root. */
210 static const char *target_sysroot_suffix
= 0;
212 /* Nonzero means append this string to target_system_root for headers. */
214 static const char *target_sysroot_hdrs_suffix
= 0;
216 /* Nonzero means write "temp" files in source directory
217 and use the source file's name in them, and don't delete them. */
219 static int save_temps_flag
;
221 /* Nonzero means pass multiple source files to the compiler at one time. */
223 static int combine_flag
= 0;
225 /* Nonzero means use pipes to communicate between subprocesses.
226 Overridden by either of the above two flags. */
228 static int use_pipes
;
230 /* The compiler version. */
232 static const char *compiler_version
;
234 /* The target version specified with -V */
236 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
238 /* The target machine specified with -b. */
240 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
242 /* Nonzero if cross-compiling.
243 When -b is used, the value comes from the `specs' file. */
246 static const char *cross_compile
= "1";
248 static const char *cross_compile
= "0";
251 #ifdef MODIFY_TARGET_NAME
253 /* Information on how to alter the target name based on a command-line
254 switch. The only case we support now is simply appending or deleting a
255 string to or from the end of the first part of the configuration name. */
257 static const struct modify_target
259 const char *const sw
;
260 const enum add_del
{ADD
, DELETE
} add_del
;
261 const char *const str
;
263 modify_target
[] = MODIFY_TARGET_NAME
;
266 /* The number of errors that have occurred; the link phase will not be
267 run if this is nonzero. */
268 static int error_count
= 0;
270 /* Greatest exit code of sub-processes that has been encountered up to
272 static int greatest_status
= 1;
274 /* This is the obstack which we use to allocate many strings. */
276 static struct obstack obstack
;
278 /* This is the obstack to build an environment variable to pass to
279 collect2 that describes all of the relevant switches of what to
280 pass the compiler in building the list of pointers to constructors
283 static struct obstack collect_obstack
;
285 /* These structs are used to collect resource usage information for
287 #ifdef HAVE_GETRUSAGE
288 static struct rusage rus
, prus
;
291 /* Forward declaration for prototypes. */
295 static void init_spec (void);
296 static void store_arg (const char *, int, int);
297 static char *load_specs (const char *);
298 static void read_specs (const char *, int);
299 static void set_spec (const char *, const char *);
300 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
301 static char *build_search_list (struct path_prefix
*, const char *, int);
302 static void putenv_from_prefixes (struct path_prefix
*, const char *);
303 static int access_check (const char *, int);
304 static char *find_a_file (struct path_prefix
*, const char *, int, int);
305 static void add_prefix (struct path_prefix
*, const char *, const char *,
306 int, int, int *, int);
307 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
308 const char *, int, int, int *, int);
309 static void translate_options (int *, const char *const **);
310 static char *skip_whitespace (char *);
311 static void delete_if_ordinary (const char *);
312 static void delete_temp_files (void);
313 static void delete_failure_queue (void);
314 static void clear_failure_queue (void);
315 static int check_live_switch (int, int);
316 static const char *handle_braces (const char *);
317 static inline bool input_suffix_matches (const char *, const char *);
318 static inline bool switch_matches (const char *, const char *, int);
319 static inline void mark_matching_switches (const char *, const char *, int);
320 static inline void process_marked_switches (void);
321 static const char *process_brace_body (const char *, const char *, const char *, int, int);
322 static const struct spec_function
*lookup_spec_function (const char *);
323 static const char *eval_spec_function (const char *, const char *);
324 static const char *handle_spec_function (const char *);
325 static char *save_string (const char *, int);
326 static void set_collect_gcc_options (void);
327 static void do_spec_path (struct prefix_list
*, const char *, int, int, int, const char *, const char *);
328 static int do_spec_1 (const char *, int, const char *);
329 static int do_spec_2 (const char *);
330 static void do_option_spec (const char *, const char *);
331 static void do_self_spec (const char *);
332 static const char *find_file (const char *);
333 static int is_directory (const char *, const char *, int);
334 static const char *validate_switches (const char *);
335 static void validate_all_switches (void);
336 static inline void validate_switches_from_spec (const char *);
337 static void give_switch (int, int);
338 static int used_arg (const char *, int);
339 static int default_arg (const char *, int);
340 static void set_multilib_dir (void);
341 static void print_multilib_info (void);
342 static void perror_with_name (const char *);
343 static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN
;
344 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
345 static void display_help (void);
346 static void add_preprocessor_option (const char *, int);
347 static void add_assembler_option (const char *, int);
348 static void add_linker_option (const char *, int);
349 static void process_command (int, const char **);
350 static int execute (void);
351 static void alloc_args (void);
352 static void clear_args (void);
353 static void fatal_error (int);
354 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
355 static void init_gcc_specs (struct obstack
*, const char *, const char *,
358 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
359 static const char *convert_filename (const char *, int, int);
362 static const char *if_exists_spec_function (int, const char **);
363 static const char *if_exists_else_spec_function (int, const char **);
365 /* The Specs Language
367 Specs are strings containing lines, each of which (if not blank)
368 is made up of a program name, and arguments separated by spaces.
369 The program name must be exact and start from root, since no path
370 is searched and it is unreliable to depend on the current working directory.
371 Redirection of input or output is not supported; the subprograms must
372 accept filenames saying what files to read and write.
374 In addition, the specs can contain %-sequences to substitute variable text
375 or for conditional text. Here is a table of all defined %-sequences.
376 Note that spaces are not generated automatically around the results of
377 expanding these sequences; therefore, you can concatenate them together
378 or with constant text in a single argument.
380 %% substitute one % into the program name or argument.
381 %i substitute the name of the input file being processed.
382 %b substitute the basename of the input file being processed.
383 This is the substring up to (and not including) the last period
384 and not including the directory.
385 %B same as %b, but include the file suffix (text after the last period).
387 substitute a file name that has suffix SUFFIX and is chosen
388 once per compilation, and mark the argument a la %d. To reduce
389 exposure to denial-of-service attacks, the file name is now
390 chosen in a way that is hard to predict even when previously
391 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
392 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
393 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
394 had been pre-processed. Previously, %g was simply substituted
395 with a file name chosen once per compilation, without regard
396 to any appended suffix (which was therefore treated just like
397 ordinary text), making such attacks more likely to succeed.
399 like %g, but if -pipe is in effect, expands simply to "-".
401 like %g, but if -pipe is in effect, expands to nothing. (We have both
402 %| and %m to accommodate differences between system assemblers; see
403 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
405 like %g, but generates a new temporary file name even if %uSUFFIX
408 substitutes the last file name generated with %uSUFFIX, generating a
409 new one if there is no such last file name. In the absence of any
410 %uSUFFIX, this is just like %gSUFFIX, except they don't share
411 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
412 would involve the generation of two distinct file names, one
413 for each `%g.s' and another for each `%U.s'. Previously, %U was
414 simply substituted with a file name chosen for the previous %u,
415 without regard to any appended suffix.
417 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
418 writable, and if save-temps is off; otherwise, substitute the name
419 of a temporary file, just like %u. This temporary file is not
420 meant for communication between processes, but rather as a junk
423 substitutes .SUFFIX for the suffixes of a matched switch's args when
424 it is subsequently output with %*. SUFFIX is terminated by the next
426 %d marks the argument containing or following the %d as a
427 temporary file name, so that that file will be deleted if CC exits
428 successfully. Unlike %g, this contributes no text to the argument.
429 %w marks the argument containing or following the %w as the
430 "output file" of this compilation. This puts the argument
431 into the sequence of arguments that %o will substitute later.
432 %V indicates that this compilation produces no "output file".
434 like %{...} but mark last argument supplied within
435 as a file to be deleted on failure.
436 %o substitutes the names of all the output files, with spaces
437 automatically placed around them. You should write spaces
438 around the %o as well or the results are undefined.
439 %o is for use in the specs for running the linker.
440 Input files whose names have no recognized suffix are not compiled
441 at all, but they are included among the output files, so they will
443 %O substitutes the suffix for object files. Note that this is
444 handled specially when it immediately follows %g, %u, or %U
445 (with or without a suffix argument) because of the need for
446 those to form complete file names. The handling is such that
447 %O is treated exactly as if it had already been substituted,
448 except that %g, %u, and %U do not currently support additional
449 SUFFIX characters following %O as they would following, for
451 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
452 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
453 and -B options) as necessary.
454 %s current argument is the name of a library or startup file of some sort.
455 Search for that file in a standard list of directories
456 and substitute the full name found.
457 %eSTR Print STR as an error message. STR is terminated by a newline.
458 Use this when inconsistent options are detected.
459 %nSTR Print STR as a notice. STR is terminated by a newline.
460 %x{OPTION} Accumulate an option for %X.
461 %X Output the accumulated linker options specified by compilations.
462 %Y Output the accumulated assembler options specified by compilations.
463 %Z Output the accumulated preprocessor options specified by compilations.
464 %a process ASM_SPEC as a spec.
465 This allows config.h to specify part of the spec for running as.
466 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
467 used here. This can be used to run a post-processor after the
468 assembler has done its job.
469 %D Dump out a -L option for each directory in startfile_prefixes.
470 If multilib_dir is set, extra entries are generated with it affixed.
471 %l process LINK_SPEC as a spec.
472 %L process LIB_SPEC as a spec.
473 %G process LIBGCC_SPEC as a spec.
474 %M output multilib_dir with directory separators replaced with "_";
475 if multilib_dir is not set or is ".", output "".
476 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
477 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
478 %C process CPP_SPEC as a spec.
479 %1 process CC1_SPEC as a spec.
480 %2 process CC1PLUS_SPEC as a spec.
481 %* substitute the variable part of a matched option. (See below.)
482 Note that each comma in the substituted string is replaced by
484 %<S remove all occurrences of -S from the command line.
485 Note - this command is position dependent. % commands in the
486 spec string before this one will see -S, % commands in the
487 spec string after this one will not.
488 %<S* remove all occurrences of all switches beginning with -S from the
491 Call the named function FUNCTION, passing it ARGS. ARGS is
492 first processed as a nested spec string, then split into an
493 argument vector in the usual fashion. The function returns
494 a string which is processed as if it had appeared literally
495 as part of the current spec.
496 %{S} substitutes the -S switch, if that switch was given to CC.
497 If that switch was not specified, this substitutes nothing.
498 Here S is a metasyntactic variable.
499 %{S*} substitutes all the switches specified to CC whose names start
500 with -S. This is used for -o, -I, etc; switches that take
501 arguments. CC considers `-o foo' as being one switch whose
502 name starts with `o'. %{o*} would substitute this text,
503 including the space; thus, two arguments would be generated.
504 %{S*&T*} likewise, but preserve order of S and T options (the order
505 of S and T in the spec is not significant). Can be any number
506 of ampersand-separated variables; for each the wild card is
507 optional. Useful for CPP as %{D*&U*&A*}.
509 %{S:X} substitutes X, if the -S switch was given to CC.
510 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
511 %{S*:X} substitutes X if one or more switches whose names start
512 with -S was given to CC. Normally X is substituted only
513 once, no matter how many such switches appeared. However,
514 if %* appears somewhere in X, then X will be substituted
515 once for each matching switch, with the %* replaced by the
516 part of that switch that matched the '*'.
517 %{.S:X} substitutes X, if processing a file with suffix S.
518 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
520 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
521 combined with !, ., and * as above binding stronger than the OR.
522 If %* appears in X, all of the alternatives must be starred, and
523 only the first matching alternative is substituted.
524 %{S:X; if S was given to CC, substitutes X;
525 T:Y; else if T was given to CC, substitutes Y;
526 :D} else substitutes D. There can be as many clauses as you need.
527 This may be combined with ., !, |, and * as above.
529 %(Spec) processes a specification defined in a specs file as *Spec:
530 %[Spec] as above, but put __ around -D arguments
532 The conditional text X in a %{S:X} or similar construct may contain
533 other nested % constructs or spaces, or even newlines. They are
534 processed as usual, as described above. Trailing white space in X is
535 ignored. White space may also appear anywhere on the left side of the
536 colon in these constructs, except between . or * and the corresponding
539 The -O, -f, -m, and -W switches are handled specifically in these
540 constructs. If another value of -O or the negated form of a -f, -m, or
541 -W switch is found later in the command line, the earlier switch
542 value is ignored, except with {S*} where S is just one letter; this
543 passes all matching options.
545 The character | at the beginning of the predicate text is used to indicate
546 that a command should be piped to the following command, but only if -pipe
549 Note that it is built into CC which switches take arguments and which
550 do not. You might think it would be useful to generalize this to
551 allow each compiler's spec to say which switches take arguments. But
552 this cannot be done in a consistent fashion. CC cannot even decide
553 which input files have been specified without knowing which switches
554 take arguments, and it must know which input files to compile in order
555 to tell which compilers to run.
557 CC also knows implicitly that arguments starting in `-l' are to be
558 treated as compiler output files, and passed to the linker in their
559 proper position among the other output files. */
561 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
563 /* config.h can define ASM_SPEC to provide extra args to the assembler
564 or extra switch-translations. */
569 /* config.h can define ASM_FINAL_SPEC to run a post processor after
570 the assembler has run. */
571 #ifndef ASM_FINAL_SPEC
572 #define ASM_FINAL_SPEC ""
575 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
576 or extra switch-translations. */
581 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
582 or extra switch-translations. */
587 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
588 or extra switch-translations. */
590 #define CC1PLUS_SPEC ""
593 /* config.h can define LINK_SPEC to provide extra args to the linker
594 or extra switch-translations. */
599 /* config.h can define LIB_SPEC to override the default libraries. */
601 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
606 /* XXX: valid only for GNU ld */
607 /* XXX: should exactly match hooks provided by libmudflap.a */
608 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
609 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
610 --wrap=mmap --wrap=munmap --wrap=alloca\
611 } %{fmudflapth: --wrap=pthread_create --wrap=pthread_join --wrap=pthread_exit\
612 }} %{fmudflap|fmudflapth: --wrap=main}"
615 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
618 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
621 #if defined(REAL_LIBGCC_SPEC)
622 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
623 #elif defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
624 /* Have gcc do the search for libgcc.a. */
625 #define LIBGCC_SPEC "libgcc.a%s"
627 #define LIBGCC_SPEC "-lgcc"
631 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
632 #ifndef STARTFILE_SPEC
633 #define STARTFILE_SPEC \
634 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
637 /* config.h can define SWITCHES_NEED_SPACES to control which options
638 require spaces between the option and the argument. */
639 #ifndef SWITCHES_NEED_SPACES
640 #define SWITCHES_NEED_SPACES ""
643 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
645 #define ENDFILE_SPEC ""
649 #define LINKER_NAME "collect2"
652 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
654 #ifndef ASM_DEBUG_SPEC
655 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
656 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
657 # define ASM_DEBUG_SPEC \
658 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
659 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
660 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
662 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
663 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
665 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
666 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
670 #ifndef ASM_DEBUG_SPEC
671 # define ASM_DEBUG_SPEC ""
674 /* Here is the spec for running the linker, after compiling all files. */
676 /* This is overridable by the target in case they need to specify the
677 -lgcc and -lc order specially, yet not require them to override all
678 of LINK_COMMAND_SPEC. */
679 #ifndef LINK_GCC_C_SEQUENCE_SPEC
680 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
683 #ifndef LINK_PIE_SPEC
685 #define LINK_PIE_SPEC "%{pie:-pie} "
687 #define LINK_PIE_SPEC "%{pie:} "
691 /* -u* was put back because both BSD and SysV seem to support it. */
692 /* %{static:} simply prevents an error message if the target machine
693 doesn't handle -static. */
694 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
695 scripts which exist in user specified directories, or in standard
697 #ifndef LINK_COMMAND_SPEC
698 #define LINK_COMMAND_SPEC "\
699 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
700 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
701 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
702 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o %(mflib)\
703 %{fprofile-arcs|fprofile-generate:-lgcov}\
704 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
705 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
708 #ifndef LINK_LIBGCC_SPEC
709 # ifdef LINK_LIBGCC_SPECIAL
710 /* Don't generate -L options for startfile prefix list. */
711 # define LINK_LIBGCC_SPEC ""
713 /* Do generate them. */
714 # define LINK_LIBGCC_SPEC "%D"
718 #ifndef STARTFILE_PREFIX_SPEC
719 # define STARTFILE_PREFIX_SPEC ""
722 #ifndef SYSROOT_SUFFIX_SPEC
723 # define SYSROOT_SUFFIX_SPEC ""
726 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
727 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
730 static const char *asm_debug
;
731 static const char *cpp_spec
= CPP_SPEC
;
732 static const char *cc1_spec
= CC1_SPEC
;
733 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
734 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
735 static const char *asm_spec
= ASM_SPEC
;
736 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
737 static const char *link_spec
= LINK_SPEC
;
738 static const char *lib_spec
= LIB_SPEC
;
739 static const char *mfwrap_spec
= MFWRAP_SPEC
;
740 static const char *mflib_spec
= MFLIB_SPEC
;
741 static const char *libgcc_spec
= LIBGCC_SPEC
;
742 static const char *endfile_spec
= ENDFILE_SPEC
;
743 static const char *startfile_spec
= STARTFILE_SPEC
;
744 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
745 static const char *linker_name_spec
= LINKER_NAME
;
746 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
747 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
748 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
749 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
750 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
752 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
753 There should be no need to override these in target dependent files,
754 but we need to copy them to the specs file so that newer versions
755 of the GCC driver can correctly drive older tool chains with the
756 appropriate -B options. */
758 /* When cpplib handles traditional preprocessing, get rid of this, and
759 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
760 that we default the front end language better. */
761 static const char *trad_capable_cpp
=
762 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
764 /* We don't wrap .d files in %W{} since a missing .d file, and
765 therefore no dependency entry, confuses make into thinking a .o
766 file that happens to exist is up-to-date. */
767 static const char *cpp_unique_options
=
768 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
769 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
770 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
771 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
772 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
773 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
774 %{trigraphs} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
775 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
776 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
779 /* This contains cpp options which are common with cc1_options and are passed
780 only when preprocessing only to avoid duplication. We pass the cc1 spec
781 options to the preprocessor so that it the cc1 spec may manipulate
782 options used to set target flags. Those special target flags settings may
783 in turn cause preprocessor symbols to be defined specially. */
784 static const char *cpp_options
=
785 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
786 %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*} %{undef}\
787 %{save-temps:-fpch-preprocess}";
789 /* This contains cpp options which are not passed when the preprocessor
790 output will be used by another program. */
791 static const char *cpp_debug_options
= "%{d*}";
793 /* NB: This is shared amongst all front-ends. */
794 static const char *cc1_options
=
795 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
796 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
797 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
798 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
799 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
800 %{Qn:-fno-ident} %{--help:--help}\
801 %{--target-help:--target-help}\
802 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
803 %{fsyntax-only:-o %j} %{-param*}\
804 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}";
806 static const char *asm_options
=
807 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
809 static const char *invoke_as
=
810 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
811 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
813 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
816 /* Some compilers have limits on line lengths, and the multilib_select
817 and/or multilib_matches strings can be very long, so we build them at
819 static struct obstack multilib_obstack
;
820 static const char *multilib_select
;
821 static const char *multilib_matches
;
822 static const char *multilib_defaults
;
823 static const char *multilib_exclusions
;
825 /* Check whether a particular argument is a default argument. */
827 #ifndef MULTILIB_DEFAULTS
828 #define MULTILIB_DEFAULTS { "" }
831 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
833 #ifndef DRIVER_SELF_SPECS
834 #define DRIVER_SELF_SPECS ""
837 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
839 #ifndef OPTION_DEFAULT_SPECS
840 #define OPTION_DEFAULT_SPECS { "", "" }
849 static const struct default_spec
850 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
854 struct user_specs
*next
;
855 const char *filename
;
858 static struct user_specs
*user_specs_head
, *user_specs_tail
;
860 #ifndef SWITCH_TAKES_ARG
861 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
864 #ifndef WORD_SWITCH_TAKES_ARG
865 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
868 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
869 /* This defines which switches stop a full compilation. */
870 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
871 ((CHAR) == 'c' || (CHAR) == 'S')
873 #ifndef SWITCH_CURTAILS_COMPILATION
874 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
875 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
879 /* Record the mapping from file suffixes for compilation specs. */
883 const char *suffix
; /* Use this compiler for input files
884 whose names end in this suffix. */
886 const char *spec
; /* To use this compiler, run this spec. */
888 const char *cpp_spec
; /* If non-NULL, substitute this spec
889 for `%C', rather than the usual
891 const int combinable
; /* If nonzero, compiler can deal with
892 multiple source files at once (IMA). */
893 const int needs_preprocessing
; /* If nonzero, source files need to
894 be run through a preprocessor. */
897 /* Pointer to a vector of `struct compiler' that gives the spec for
898 compiling a file, based on its suffix.
899 A file that does not end in any of these suffixes will be passed
900 unchanged to the loader and nothing else will be done to it.
902 An entry containing two 0s is used to terminate the vector.
904 If multiple entries match a file, the last matching one is used. */
906 static struct compiler
*compilers
;
908 /* Number of entries in `compilers', not counting the null terminator. */
910 static int n_compilers
;
912 /* The default list of file name suffixes and their compilation specs. */
914 static const struct compiler default_compilers
[] =
916 /* Add lists of suffixes of known languages here. If those languages
917 were not present when we built the driver, we will hit these copies
918 and be given a more meaningful error than "file not used since
919 linking is not done". */
920 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
921 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
922 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
923 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
924 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
925 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
926 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
927 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
928 {".FPP", "#Fortran", 0, 0, 0},
929 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
930 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
931 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
932 {".r", "#Ratfor", 0, 0, 0},
933 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
934 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
935 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
936 /* Next come the entries for C. */
937 {".c", "@c", 0, 1, 1},
939 /* cc1 has an integrated ISO C preprocessor. We should invoke the
940 external preprocessor if -save-temps is given. */
941 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
943 %{traditional|ftraditional:\
944 %eGNU C no longer supports -traditional without -E}\
946 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
947 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
948 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
950 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
951 cc1 %(cpp_unique_options) %(cc1_options)}}}\
952 %{!fsyntax-only:%(invoke_as)}} \
954 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
955 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
956 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
957 cc1 %(cpp_unique_options) %(cc1_options)}}\
958 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
960 "%{!E:%e-E required when input is from standard input}\
961 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
962 {".h", "@c-header", 0, 0, 0},
964 /* cc1 has an integrated ISO C preprocessor. We should invoke the
965 external preprocessor if -save-temps is given. */
966 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
968 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
969 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
970 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
972 -o %g.s %{!o*:--output-pch=%i.gch}\
973 %W{o*:--output-pch=%*}%V}\
974 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
975 cc1 %(cpp_unique_options) %(cc1_options)\
976 -o %g.s %{!o*:--output-pch=%i.gch}\
977 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
978 {".i", "@cpp-output", 0, 1, 0},
980 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
981 {".s", "@assembler", 0, 1, 0},
983 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
984 {".S", "@assembler-with-cpp", 0, 1, 0},
985 {"@assembler-with-cpp",
986 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
987 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
988 %{E|M|MM:%(cpp_debug_options)}\
989 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
990 as %(asm_debug) %(asm_options) %|.s %A }}}}"
992 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
993 %{E|M|MM:%(cpp_debug_options)}\
994 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
995 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1000 /* Mark end of table. */
1004 /* Number of elements in default_compilers, not counting the terminator. */
1006 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1008 /* A vector of options to give to the linker.
1009 These options are accumulated by %x,
1010 and substituted into the linker command with %X. */
1011 static int n_linker_options
;
1012 static char **linker_options
;
1014 /* A vector of options to give to the assembler.
1015 These options are accumulated by -Wa,
1016 and substituted into the assembler command with %Y. */
1017 static int n_assembler_options
;
1018 static char **assembler_options
;
1020 /* A vector of options to give to the preprocessor.
1021 These options are accumulated by -Wp,
1022 and substituted into the preprocessor command with %Z. */
1023 static int n_preprocessor_options
;
1024 static char **preprocessor_options
;
1026 /* Define how to map long options into short ones. */
1028 /* This structure describes one mapping. */
1031 /* The long option's name. */
1032 const char *const name
;
1033 /* The equivalent short option. */
1034 const char *const equivalent
;
1035 /* Argument info. A string of flag chars; NULL equals no options.
1036 a => argument required.
1037 o => argument optional.
1038 j => join argument to equivalent, making one word.
1039 * => require other text after NAME as an argument. */
1040 const char *const arg_info
;
1043 /* This is the table of mappings. Mappings are tried sequentially
1044 for each option encountered; the first one that matches, wins. */
1046 static const struct option_map option_map
[] =
1048 {"--all-warnings", "-Wall", 0},
1049 {"--ansi", "-ansi", 0},
1050 {"--assemble", "-S", 0},
1051 {"--assert", "-A", "a"},
1052 {"--classpath", "-fclasspath=", "aj"},
1053 {"--bootclasspath", "-fbootclasspath=", "aj"},
1054 {"--CLASSPATH", "-fclasspath=", "aj"},
1055 {"--combine", "-combine", 0},
1056 {"--comments", "-C", 0},
1057 {"--comments-in-macros", "-CC", 0},
1058 {"--compile", "-c", 0},
1059 {"--debug", "-g", "oj"},
1060 {"--define-macro", "-D", "aj"},
1061 {"--dependencies", "-M", 0},
1062 {"--dump", "-d", "a"},
1063 {"--dumpbase", "-dumpbase", "a"},
1064 {"--entry", "-e", 0},
1065 {"--extra-warnings", "-W", 0},
1066 {"--for-assembler", "-Wa", "a"},
1067 {"--for-linker", "-Xlinker", "a"},
1068 {"--force-link", "-u", "a"},
1069 {"--imacros", "-imacros", "a"},
1070 {"--include", "-include", "a"},
1071 {"--include-barrier", "-I-", 0},
1072 {"--include-directory", "-I", "aj"},
1073 {"--include-directory-after", "-idirafter", "a"},
1074 {"--include-prefix", "-iprefix", "a"},
1075 {"--include-with-prefix", "-iwithprefix", "a"},
1076 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1077 {"--include-with-prefix-after", "-iwithprefix", "a"},
1078 {"--language", "-x", "a"},
1079 {"--library-directory", "-L", "a"},
1080 {"--machine", "-m", "aj"},
1081 {"--machine-", "-m", "*j"},
1082 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1083 {"--no-line-commands", "-P", 0},
1084 {"--no-precompiled-includes", "-noprecomp", 0},
1085 {"--no-standard-includes", "-nostdinc", 0},
1086 {"--no-standard-libraries", "-nostdlib", 0},
1087 {"--no-warnings", "-w", 0},
1088 {"--optimize", "-O", "oj"},
1089 {"--output", "-o", "a"},
1090 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1091 {"--param", "--param", "a"},
1092 {"--pedantic", "-pedantic", 0},
1093 {"--pedantic-errors", "-pedantic-errors", 0},
1094 {"--pie", "-pie", 0},
1095 {"--pipe", "-pipe", 0},
1096 {"--prefix", "-B", "a"},
1097 {"--preprocess", "-E", 0},
1098 {"--print-search-dirs", "-print-search-dirs", 0},
1099 {"--print-file-name", "-print-file-name=", "aj"},
1100 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1101 {"--print-missing-file-dependencies", "-MG", 0},
1102 {"--print-multi-lib", "-print-multi-lib", 0},
1103 {"--print-multi-directory", "-print-multi-directory", 0},
1104 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1105 {"--print-prog-name", "-print-prog-name=", "aj"},
1106 {"--profile", "-p", 0},
1107 {"--profile-blocks", "-a", 0},
1108 {"--quiet", "-q", 0},
1109 {"--resource", "-fcompile-resource=", "aj"},
1110 {"--save-temps", "-save-temps", 0},
1111 {"--shared", "-shared", 0},
1112 {"--silent", "-q", 0},
1113 {"--specs", "-specs=", "aj"},
1114 {"--static", "-static", 0},
1115 {"--std", "-std=", "aj"},
1116 {"--symbolic", "-symbolic", 0},
1117 {"--time", "-time", 0},
1118 {"--trace-includes", "-H", 0},
1119 {"--traditional", "-traditional", 0},
1120 {"--traditional-cpp", "-traditional-cpp", 0},
1121 {"--trigraphs", "-trigraphs", 0},
1122 {"--undefine-macro", "-U", "aj"},
1123 {"--user-dependencies", "-MM", 0},
1124 {"--verbose", "-v", 0},
1125 {"--warn-", "-W", "*j"},
1126 {"--write-dependencies", "-MD", 0},
1127 {"--write-user-dependencies", "-MMD", 0},
1132 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1133 static const struct {
1134 const char *const option_found
;
1135 const char *const replacements
;
1136 } target_option_translations
[] =
1138 TARGET_OPTION_TRANSLATE_TABLE
,
1143 /* Translate the options described by *ARGCP and *ARGVP.
1144 Make a new vector and store it back in *ARGVP,
1145 and store its length in *ARGVC. */
1148 translate_options (int *argcp
, const char *const **argvp
)
1152 const char *const *argv
= *argvp
;
1153 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1154 const char **newv
= xmalloc (newvsize
);
1158 newv
[newindex
++] = argv
[i
++];
1162 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1166 target_option_translations
[tott_idx
].option_found
;
1169 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1176 for (sp
= target_option_translations
[tott_idx
].replacements
;
1183 newvsize
+= spaces
* sizeof (const char *);
1184 newv
= xrealloc (newv
, newvsize
);
1186 sp
= target_option_translations
[tott_idx
].replacements
;
1195 newv
[newindex
++] = np
;
1196 while (*np
!= ' ' && *np
)
1207 if (target_option_translations
[tott_idx
].option_found
)
1211 /* Translate -- options. */
1212 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1215 /* Find a mapping that applies to this option. */
1216 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1218 size_t optlen
= strlen (option_map
[j
].name
);
1219 size_t arglen
= strlen (argv
[i
]);
1220 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1221 const char *arginfo
= option_map
[j
].arg_info
;
1226 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1228 const char *arg
= 0;
1230 if (arglen
< optlen
)
1233 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1234 if (strlen (option_map
[k
].name
) >= arglen
1235 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1237 error ("ambiguous abbreviation %s", argv
[i
]);
1241 if (k
!= ARRAY_SIZE (option_map
))
1245 if (arglen
> optlen
)
1247 /* If the option has an argument, accept that. */
1248 if (argv
[i
][optlen
] == '=')
1249 arg
= argv
[i
] + optlen
+ 1;
1251 /* If this mapping requires extra text at end of name,
1252 accept that as "argument". */
1253 else if (strchr (arginfo
, '*') != 0)
1254 arg
= argv
[i
] + optlen
;
1256 /* Otherwise, extra text at end means mismatch.
1257 Try other mappings. */
1262 else if (strchr (arginfo
, '*') != 0)
1264 error ("incomplete `%s' option", option_map
[j
].name
);
1268 /* Handle arguments. */
1269 if (strchr (arginfo
, 'a') != 0)
1275 error ("missing argument to `%s' option",
1276 option_map
[j
].name
);
1283 else if (strchr (arginfo
, '*') != 0)
1285 else if (strchr (arginfo
, 'o') == 0)
1288 error ("extraneous argument to `%s' option",
1289 option_map
[j
].name
);
1293 /* Store the translation as one argv elt or as two. */
1294 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1295 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1299 newv
[newindex
++] = option_map
[j
].equivalent
;
1300 newv
[newindex
++] = arg
;
1303 newv
[newindex
++] = option_map
[j
].equivalent
;
1311 /* Handle old-fashioned options--just copy them through,
1312 with their arguments. */
1313 else if (argv
[i
][0] == '-')
1315 const char *p
= argv
[i
] + 1;
1319 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1320 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1321 else if (WORD_SWITCH_TAKES_ARG (p
))
1322 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1323 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1326 else if (! strcmp (p
, "Xlinker"))
1328 else if (! strcmp (p
, "Xpreprocessor"))
1330 else if (! strcmp (p
, "Xassembler"))
1333 /* Watch out for an option at the end of the command line that
1334 is missing arguments, and avoid skipping past the end of the
1336 if (nskip
+ i
> argc
)
1341 newv
[newindex
++] = argv
[i
++];
1346 /* Ordinary operands, or +e options. */
1347 newv
[newindex
++] = argv
[i
++];
1357 skip_whitespace (char *p
)
1361 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1362 be considered whitespace. */
1363 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1365 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1379 /* Structures to keep track of prefixes to try when looking for files. */
1383 const char *prefix
; /* String to prepend to the path. */
1384 struct prefix_list
*next
; /* Next in linked list. */
1385 int require_machine_suffix
; /* Don't use without machine_suffix. */
1386 /* 2 means try both machine_suffix and just_machine_suffix. */
1387 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1388 int priority
; /* Sort key - priority within list. */
1389 int os_multilib
; /* 1 if OS multilib scheme should be used,
1390 0 for GCC multilib scheme. */
1395 struct prefix_list
*plist
; /* List of prefixes to try */
1396 int max_len
; /* Max length of a prefix in PLIST */
1397 const char *name
; /* Name of this list (used in config stuff) */
1400 /* List of prefixes to try when looking for executables. */
1402 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1404 /* List of prefixes to try when looking for startup (crt0) files. */
1406 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1408 /* List of prefixes to try when looking for include files. */
1410 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1412 /* Suffix to attach to directories searched for commands.
1413 This looks like `MACHINE/VERSION/'. */
1415 static const char *machine_suffix
= 0;
1417 /* Suffix to attach to directories searched for commands.
1418 This is just `MACHINE/'. */
1420 static const char *just_machine_suffix
= 0;
1422 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1424 static const char *gcc_exec_prefix
;
1426 /* Adjusted value of standard_libexec_prefix. */
1428 static const char *gcc_libexec_prefix
;
1430 /* Default prefixes to attach to command names. */
1432 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1433 #undef MD_EXEC_PREFIX
1434 #undef MD_STARTFILE_PREFIX
1435 #undef MD_STARTFILE_PREFIX_1
1438 /* If no prefixes defined, use the null string, which will disable them. */
1439 #ifndef MD_EXEC_PREFIX
1440 #define MD_EXEC_PREFIX ""
1442 #ifndef MD_STARTFILE_PREFIX
1443 #define MD_STARTFILE_PREFIX ""
1445 #ifndef MD_STARTFILE_PREFIX_1
1446 #define MD_STARTFILE_PREFIX_1 ""
1449 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1450 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1451 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1452 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1454 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1455 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1456 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1457 static const char *const standard_startfile_prefix_1
= "/lib/";
1458 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1460 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1461 static const char *tooldir_prefix
;
1463 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1465 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1467 /* Subdirectory to use for locating libraries. Set by
1468 set_multilib_dir based on the compilation options. */
1470 static const char *multilib_dir
;
1472 /* Subdirectory to use for locating libraries in OS conventions. Set by
1473 set_multilib_dir based on the compilation options. */
1475 static const char *multilib_os_dir
;
1477 /* Structure to keep track of the specs that have been defined so far.
1478 These are accessed using %(specname) or %[specname] in a compiler
1483 /* The following 2 fields must be first */
1484 /* to allow EXTRA_SPECS to be initialized */
1485 const char *name
; /* name of the spec. */
1486 const char *ptr
; /* available ptr if no static pointer */
1488 /* The following fields are not initialized */
1489 /* by EXTRA_SPECS */
1490 const char **ptr_spec
; /* pointer to the spec itself. */
1491 struct spec_list
*next
; /* Next spec in linked list. */
1492 int name_len
; /* length of the name */
1493 int alloc_p
; /* whether string was allocated */
1496 #define INIT_STATIC_SPEC(NAME,PTR) \
1497 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1499 /* List of statically defined specs. */
1500 static struct spec_list static_specs
[] =
1502 INIT_STATIC_SPEC ("asm", &asm_spec
),
1503 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1504 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1505 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1506 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1507 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1508 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1509 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1510 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1511 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1512 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1513 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1514 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1515 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1516 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1517 INIT_STATIC_SPEC ("link", &link_spec
),
1518 INIT_STATIC_SPEC ("lib", &lib_spec
),
1519 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1520 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1521 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1522 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1523 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1524 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1525 INIT_STATIC_SPEC ("version", &compiler_version
),
1526 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1527 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1528 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1529 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1530 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1531 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1532 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1533 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1534 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1535 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1536 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1537 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1538 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1539 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1542 #ifdef EXTRA_SPECS /* additional specs needed */
1543 /* Structure to keep track of just the first two args of a spec_list.
1544 That is all that the EXTRA_SPECS macro gives us. */
1547 const char *const name
;
1548 const char *const ptr
;
1551 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1552 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1555 /* List of dynamically allocates specs that have been defined so far. */
1557 static struct spec_list
*specs
= (struct spec_list
*) 0;
1559 /* List of static spec functions. */
1561 static const struct spec_function static_spec_functions
[] =
1563 { "if-exists", if_exists_spec_function
},
1564 { "if-exists-else", if_exists_else_spec_function
},
1568 static int processing_spec_function
;
1570 /* Add appropriate libgcc specs to OBSTACK, taking into account
1571 various permutations of -shared-libgcc, -shared, and such. */
1573 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1575 #ifndef USE_LD_AS_NEEDED
1576 #define USE_LD_AS_NEEDED 0
1580 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1581 const char *static_name
, const char *eh_name
)
1585 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1586 "}%{!static:%{!static-libgcc:",
1587 #if USE_LD_AS_NEEDED
1588 "%{!shared-libgcc:", static_name
,
1589 " --as-needed ", shared_name
, " --no-as-needed}"
1590 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1593 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1594 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1595 static_name
, "}}%{shared:",
1597 "%{shared-libgcc:", shared_name
,
1598 "}%{!shared-libgcc:", static_name
, "}",
1605 obstack_grow (obstack
, buf
, strlen (buf
));
1608 #endif /* ENABLE_SHARED_LIBGCC */
1610 /* Initialize the specs lookup routines. */
1615 struct spec_list
*next
= (struct spec_list
*) 0;
1616 struct spec_list
*sl
= (struct spec_list
*) 0;
1620 return; /* Already initialized. */
1623 notice ("Using built-in specs.\n");
1626 extra_specs
= xcalloc (sizeof (struct spec_list
),
1627 ARRAY_SIZE (extra_specs_1
));
1629 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1631 sl
= &extra_specs
[i
];
1632 sl
->name
= extra_specs_1
[i
].name
;
1633 sl
->ptr
= extra_specs_1
[i
].ptr
;
1635 sl
->name_len
= strlen (sl
->name
);
1636 sl
->ptr_spec
= &sl
->ptr
;
1641 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1642 on ?: in file-scope variable initializations. */
1643 asm_debug
= ASM_DEBUG_SPEC
;
1645 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1647 sl
= &static_specs
[i
];
1652 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1653 /* ??? If neither -shared-libgcc nor --static-libgcc was
1654 seen, then we should be making an educated guess. Some proposed
1655 heuristics for ELF include:
1657 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1658 program will be doing dynamic loading, which will likely
1659 need the shared libgcc.
1661 (2) If "-ldl", then it's also a fair bet that we're doing
1664 (3) For each ET_DYN we're linking against (either through -lfoo
1665 or /some/path/foo.so), check to see whether it or one of
1666 its dependencies depends on a shared libgcc.
1670 If the runtime is fixed to look for program headers instead
1671 of calling __register_frame_info at all, for each object,
1672 use the shared libgcc if any EH symbol referenced.
1674 If crtstuff is fixed to not invoke __register_frame_info
1675 automatically, for each object, use the shared libgcc if
1676 any non-empty unwind section found.
1678 Doing any of this probably requires invoking an external program to
1679 do the actual object file scanning. */
1681 const char *p
= libgcc_spec
;
1684 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1685 when given the proper command line arguments. */
1688 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1690 init_gcc_specs (&obstack
,
1691 #ifdef NO_SHARED_LIBGCC_MULTILIB
1699 #ifdef USE_LIBUNWIND_EXCEPTIONS
1707 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1709 /* Ug. We don't know shared library extensions. Hope that
1710 systems that use this form don't do shared libraries. */
1711 init_gcc_specs (&obstack
,
1712 #ifdef NO_SHARED_LIBGCC_MULTILIB
1720 #ifdef USE_LIBUNWIND_EXCEPTIONS
1729 obstack_1grow (&obstack
, *p
);
1730 in_sep
= (*p
== ' ');
1735 obstack_1grow (&obstack
, '\0');
1736 libgcc_spec
= obstack_finish (&obstack
);
1739 #ifdef USE_AS_TRADITIONAL_FORMAT
1740 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1742 static const char tf
[] = "--traditional-format ";
1743 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1744 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1745 asm_spec
= obstack_finish (&obstack
);
1749 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1750 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1751 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1752 link_spec
= obstack_finish (&obstack
);
1758 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1759 removed; If the spec starts with a + then SPEC is added to the end of the
1763 set_spec (const char *name
, const char *spec
)
1765 struct spec_list
*sl
;
1766 const char *old_spec
;
1767 int name_len
= strlen (name
);
1770 /* If this is the first call, initialize the statically allocated specs. */
1773 struct spec_list
*next
= (struct spec_list
*) 0;
1774 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1776 sl
= &static_specs
[i
];
1783 /* See if the spec already exists. */
1784 for (sl
= specs
; sl
; sl
= sl
->next
)
1785 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1790 /* Not found - make it. */
1791 sl
= xmalloc (sizeof (struct spec_list
));
1792 sl
->name
= xstrdup (name
);
1793 sl
->name_len
= name_len
;
1794 sl
->ptr_spec
= &sl
->ptr
;
1796 *(sl
->ptr_spec
) = "";
1801 old_spec
= *(sl
->ptr_spec
);
1802 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1803 ? concat (old_spec
, spec
+ 1, NULL
)
1808 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1811 /* Free the old spec. */
1812 if (old_spec
&& sl
->alloc_p
)
1813 free ((void *) old_spec
);
1818 /* Accumulate a command (program name and args), and run it. */
1820 /* Vector of pointers to arguments in the current line of specifications. */
1822 static const char **argbuf
;
1824 /* Number of elements allocated in argbuf. */
1826 static int argbuf_length
;
1828 /* Number of elements in argbuf currently in use (containing args). */
1830 static int argbuf_index
;
1832 /* Position in the argbuf array containing the name of the output file
1833 (the value associated with the "-o" flag). */
1835 static int have_o_argbuf_index
= 0;
1837 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1838 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1841 static struct temp_name
{
1842 const char *suffix
; /* suffix associated with the code. */
1843 int length
; /* strlen (suffix). */
1844 int unique
; /* Indicates whether %g or %u/%U was used. */
1845 const char *filename
; /* associated filename. */
1846 int filename_length
; /* strlen (filename). */
1847 struct temp_name
*next
;
1850 /* Number of commands executed so far. */
1852 static int execution_count
;
1854 /* Number of commands that exited with a signal. */
1856 static int signal_count
;
1858 /* Name with which this program was invoked. */
1860 static const char *programname
;
1862 /* Allocate the argument vector. */
1868 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1871 /* Clear out the vector of arguments (after a command is executed). */
1879 /* Add one argument to the vector at the end.
1880 This is done when a space is seen or at the end of the line.
1881 If DELETE_ALWAYS is nonzero, the arg is a filename
1882 and the file should be deleted eventually.
1883 If DELETE_FAILURE is nonzero, the arg is a filename
1884 and the file should be deleted if this compilation fails. */
1887 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1889 if (argbuf_index
+ 1 == argbuf_length
)
1890 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1892 argbuf
[argbuf_index
++] = arg
;
1893 argbuf
[argbuf_index
] = 0;
1895 if (strcmp (arg
, "-o") == 0)
1896 have_o_argbuf_index
= argbuf_index
;
1897 if (delete_always
|| delete_failure
)
1898 record_temp_file (arg
, delete_always
, delete_failure
);
1901 /* Load specs from a file name named FILENAME, replacing occurrences of
1902 various different types of line-endings, \r\n, \n\r and just \r, with
1906 load_specs (const char *filename
)
1910 struct stat statbuf
;
1917 notice ("Reading specs from %s\n", filename
);
1919 /* Open and stat the file. */
1920 desc
= open (filename
, O_RDONLY
, 0);
1922 pfatal_with_name (filename
);
1923 if (stat (filename
, &statbuf
) < 0)
1924 pfatal_with_name (filename
);
1926 /* Read contents of file into BUFFER. */
1927 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1928 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1930 pfatal_with_name (filename
);
1931 buffer
[readlen
] = 0;
1934 specs
= xmalloc (readlen
+ 1);
1936 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1942 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1944 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1958 /* Read compilation specs from a file named FILENAME,
1959 replacing the default ones.
1961 A suffix which starts with `*' is a definition for
1962 one of the machine-specific sub-specs. The "suffix" should be
1963 *asm, *cc1, *cpp, *link, *startfile, etc.
1964 The corresponding spec is stored in asm_spec, etc.,
1965 rather than in the `compilers' vector.
1967 Anything invalid in the file is a fatal error. */
1970 read_specs (const char *filename
, int main_p
)
1975 buffer
= load_specs (filename
);
1977 /* Scan BUFFER for specs, putting them in the vector. */
1983 char *in
, *out
, *p1
, *p2
, *p3
;
1985 /* Advance P in BUFFER to the next nonblank nocomment line. */
1986 p
= skip_whitespace (p
);
1990 /* Is this a special command that starts with '%'? */
1991 /* Don't allow this for the main specs file, since it would
1992 encourage people to overwrite it. */
1993 if (*p
== '%' && !main_p
)
1996 while (*p
&& *p
!= '\n')
2002 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2003 && (p1
[sizeof "%include" - 1] == ' '
2004 || p1
[sizeof "%include" - 1] == '\t'))
2008 p1
+= sizeof ("%include");
2009 while (*p1
== ' ' || *p1
== '\t')
2012 if (*p1
++ != '<' || p
[-2] != '>')
2013 fatal ("specs %%include syntax malformed after %ld characters",
2014 (long) (p1
- buffer
+ 1));
2017 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2018 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2021 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2022 && (p1
[sizeof "%include_noerr" - 1] == ' '
2023 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2027 p1
+= sizeof "%include_noerr";
2028 while (*p1
== ' ' || *p1
== '\t')
2031 if (*p1
++ != '<' || p
[-2] != '>')
2032 fatal ("specs %%include syntax malformed after %ld characters",
2033 (long) (p1
- buffer
+ 1));
2036 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2038 read_specs (new_filename
, FALSE
);
2039 else if (verbose_flag
)
2040 notice ("could not find specs file %s\n", p1
);
2043 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2044 && (p1
[sizeof "%rename" - 1] == ' '
2045 || p1
[sizeof "%rename" - 1] == '\t'))
2048 struct spec_list
*sl
;
2049 struct spec_list
*newsl
;
2051 /* Get original name. */
2052 p1
+= sizeof "%rename";
2053 while (*p1
== ' ' || *p1
== '\t')
2056 if (! ISALPHA ((unsigned char) *p1
))
2057 fatal ("specs %%rename syntax malformed after %ld characters",
2058 (long) (p1
- buffer
));
2061 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2064 if (*p2
!= ' ' && *p2
!= '\t')
2065 fatal ("specs %%rename syntax malformed after %ld characters",
2066 (long) (p2
- buffer
));
2070 while (*p2
== ' ' || *p2
== '\t')
2073 if (! ISALPHA ((unsigned char) *p2
))
2074 fatal ("specs %%rename syntax malformed after %ld characters",
2075 (long) (p2
- buffer
));
2077 /* Get new spec name. */
2079 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2083 fatal ("specs %%rename syntax malformed after %ld characters",
2084 (long) (p3
- buffer
));
2087 for (sl
= specs
; sl
; sl
= sl
->next
)
2088 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2092 fatal ("specs %s spec was not found to be renamed", p1
);
2094 if (strcmp (p1
, p2
) == 0)
2097 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2098 if (strcmp (newsl
->name
, p2
) == 0)
2099 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2104 notice ("rename spec %s to %s\n", p1
, p2
);
2106 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2110 set_spec (p2
, *(sl
->ptr_spec
));
2112 free ((void *) *(sl
->ptr_spec
));
2114 *(sl
->ptr_spec
) = "";
2119 fatal ("specs unknown %% command after %ld characters",
2120 (long) (p1
- buffer
));
2123 /* Find the colon that should end the suffix. */
2125 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2128 /* The colon shouldn't be missing. */
2130 fatal ("specs file malformed after %ld characters",
2131 (long) (p1
- buffer
));
2133 /* Skip back over trailing whitespace. */
2135 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2138 /* Copy the suffix to a string. */
2139 suffix
= save_string (p
, p2
- p
);
2140 /* Find the next line. */
2141 p
= skip_whitespace (p1
+ 1);
2143 fatal ("specs file malformed after %ld characters",
2144 (long) (p
- buffer
));
2147 /* Find next blank line or end of string. */
2148 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2151 /* Specs end at the blank line and do not include the newline. */
2152 spec
= save_string (p
, p1
- p
);
2155 /* Delete backslash-newline sequences from the spec. */
2160 if (in
[0] == '\\' && in
[1] == '\n')
2162 else if (in
[0] == '#')
2163 while (*in
&& *in
!= '\n')
2171 if (suffix
[0] == '*')
2173 if (! strcmp (suffix
, "*link_command"))
2174 link_command_spec
= spec
;
2176 set_spec (suffix
+ 1, spec
);
2180 /* Add this pair to the vector. */
2182 = xrealloc (compilers
,
2183 (n_compilers
+ 2) * sizeof (struct compiler
));
2185 compilers
[n_compilers
].suffix
= suffix
;
2186 compilers
[n_compilers
].spec
= spec
;
2188 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2192 link_command_spec
= spec
;
2195 if (link_command_spec
== 0)
2196 fatal ("spec file has no spec for linking");
2199 /* Record the names of temporary files we tell compilers to write,
2200 and delete them at the end of the run. */
2202 /* This is the common prefix we use to make temp file names.
2203 It is chosen once for each run of this program.
2204 It is substituted into a spec by %g or %j.
2205 Thus, all temp file names contain this prefix.
2206 In practice, all temp file names start with this prefix.
2208 This prefix comes from the envvar TMPDIR if it is defined;
2209 otherwise, from the P_tmpdir macro if that is defined;
2210 otherwise, in /usr/tmp or /tmp;
2211 or finally the current directory if all else fails. */
2213 static const char *temp_filename
;
2215 /* Length of the prefix. */
2217 static int temp_filename_length
;
2219 /* Define the list of temporary files to delete. */
2224 struct temp_file
*next
;
2227 /* Queue of files to delete on success or failure of compilation. */
2228 static struct temp_file
*always_delete_queue
;
2229 /* Queue of files to delete on failure of compilation. */
2230 static struct temp_file
*failure_delete_queue
;
2232 /* Record FILENAME as a file to be deleted automatically.
2233 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2234 otherwise delete it in any case.
2235 FAIL_DELETE nonzero means delete it if a compilation step fails;
2236 otherwise delete it in any case. */
2239 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2241 char *const name
= xstrdup (filename
);
2245 struct temp_file
*temp
;
2246 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2247 if (! strcmp (name
, temp
->name
))
2250 temp
= xmalloc (sizeof (struct temp_file
));
2251 temp
->next
= always_delete_queue
;
2253 always_delete_queue
= temp
;
2260 struct temp_file
*temp
;
2261 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2262 if (! strcmp (name
, temp
->name
))
2265 temp
= xmalloc (sizeof (struct temp_file
));
2266 temp
->next
= failure_delete_queue
;
2268 failure_delete_queue
= temp
;
2274 /* Delete all the temporary files whose names we previously recorded. */
2276 #ifndef DELETE_IF_ORDINARY
2277 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2280 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2281 if (unlink (NAME) < 0) \
2283 perror_with_name (NAME); \
2288 delete_if_ordinary (const char *name
)
2294 printf ("Delete %s? (y or n) ", name
);
2298 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2301 if (i
== 'y' || i
== 'Y')
2303 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2307 delete_temp_files (void)
2309 struct temp_file
*temp
;
2311 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2312 delete_if_ordinary (temp
->name
);
2313 always_delete_queue
= 0;
2316 /* Delete all the files to be deleted on error. */
2319 delete_failure_queue (void)
2321 struct temp_file
*temp
;
2323 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2324 delete_if_ordinary (temp
->name
);
2328 clear_failure_queue (void)
2330 failure_delete_queue
= 0;
2333 /* Build a list of search directories from PATHS.
2334 PREFIX is a string to prepend to the list.
2335 If CHECK_DIR_P is nonzero we ensure the directory exists.
2336 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2337 It is also used by the --print-search-dirs flag. */
2340 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2343 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2345 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2346 int first_time
= TRUE
;
2347 struct prefix_list
*pprefix
;
2349 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2350 obstack_1grow (&collect_obstack
, '=');
2352 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2354 int len
= strlen (pprefix
->prefix
);
2358 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2361 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2364 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2365 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2368 if (just_machine_suffix
2369 && pprefix
->require_machine_suffix
== 2
2371 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2374 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2377 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2378 obstack_grow (&collect_obstack
, just_machine_suffix
,
2382 if (! pprefix
->require_machine_suffix
)
2385 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2388 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2392 obstack_1grow (&collect_obstack
, '\0');
2393 return obstack_finish (&collect_obstack
);
2396 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2400 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2402 putenv (build_search_list (paths
, env_var
, 1));
2405 /* Check whether NAME can be accessed in MODE. This is like access,
2406 except that it never considers directories to be executable. */
2409 access_check (const char *name
, int mode
)
2415 if (stat (name
, &st
) < 0
2416 || S_ISDIR (st
.st_mode
))
2420 return access (name
, mode
);
2423 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2424 access to check permissions.
2425 Return 0 if not found, otherwise return its name, allocated with malloc. */
2428 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2432 const char *const file_suffix
=
2433 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2434 struct prefix_list
*pl
;
2435 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2436 const char *multilib_name
, *multilib_os_name
;
2438 #ifdef DEFAULT_ASSEMBLER
2439 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2440 return xstrdup (DEFAULT_ASSEMBLER
);
2443 #ifdef DEFAULT_LINKER
2444 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2445 return xstrdup (DEFAULT_LINKER
);
2449 len
+= strlen (machine_suffix
);
2451 multilib_name
= name
;
2452 multilib_os_name
= name
;
2453 if (multilib
&& multilib_os_dir
)
2455 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2456 int len2
= strlen (multilib_os_dir
) + 1;
2458 len
+= len1
> len2
? len1
: len2
;
2460 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2462 if (strcmp (multilib_os_dir
, ".") != 0)
2463 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2467 temp
= xmalloc (len
);
2469 /* Determine the filename to execute (special case for absolute paths). */
2471 if (IS_ABSOLUTE_PATH (name
))
2473 if (access (name
, mode
) == 0)
2475 strcpy (temp
, name
);
2480 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2482 const char *this_name
2483 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2487 /* Some systems have a suffix for executable files.
2488 So try appending that first. */
2489 if (file_suffix
[0] != 0)
2491 strcpy (temp
, pl
->prefix
);
2492 strcat (temp
, machine_suffix
);
2493 strcat (temp
, multilib_name
);
2494 strcat (temp
, file_suffix
);
2495 if (access_check (temp
, mode
) == 0)
2497 if (pl
->used_flag_ptr
!= 0)
2498 *pl
->used_flag_ptr
= 1;
2503 /* Now try just the multilib_name. */
2504 strcpy (temp
, pl
->prefix
);
2505 strcat (temp
, machine_suffix
);
2506 strcat (temp
, multilib_name
);
2507 if (access_check (temp
, mode
) == 0)
2509 if (pl
->used_flag_ptr
!= 0)
2510 *pl
->used_flag_ptr
= 1;
2515 /* Certain prefixes are tried with just the machine type,
2516 not the version. This is used for finding as, ld, etc. */
2517 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2519 /* Some systems have a suffix for executable files.
2520 So try appending that first. */
2521 if (file_suffix
[0] != 0)
2523 strcpy (temp
, pl
->prefix
);
2524 strcat (temp
, just_machine_suffix
);
2525 strcat (temp
, multilib_name
);
2526 strcat (temp
, file_suffix
);
2527 if (access_check (temp
, mode
) == 0)
2529 if (pl
->used_flag_ptr
!= 0)
2530 *pl
->used_flag_ptr
= 1;
2535 strcpy (temp
, pl
->prefix
);
2536 strcat (temp
, just_machine_suffix
);
2537 strcat (temp
, multilib_name
);
2538 if (access_check (temp
, mode
) == 0)
2540 if (pl
->used_flag_ptr
!= 0)
2541 *pl
->used_flag_ptr
= 1;
2546 /* Certain prefixes can't be used without the machine suffix
2547 when the machine or version is explicitly specified. */
2548 if (! pl
->require_machine_suffix
)
2550 /* Some systems have a suffix for executable files.
2551 So try appending that first. */
2552 if (file_suffix
[0] != 0)
2554 strcpy (temp
, pl
->prefix
);
2555 strcat (temp
, this_name
);
2556 strcat (temp
, file_suffix
);
2557 if (access_check (temp
, mode
) == 0)
2559 if (pl
->used_flag_ptr
!= 0)
2560 *pl
->used_flag_ptr
= 1;
2565 strcpy (temp
, pl
->prefix
);
2566 strcat (temp
, this_name
);
2567 if (access_check (temp
, mode
) == 0)
2569 if (pl
->used_flag_ptr
!= 0)
2570 *pl
->used_flag_ptr
= 1;
2580 /* Ranking of prefixes in the sort list. -B prefixes are put before
2583 enum path_prefix_priority
2585 PREFIX_PRIORITY_B_OPT
,
2586 PREFIX_PRIORITY_LAST
2589 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2590 order according to PRIORITY. Within each PRIORITY, new entries are
2593 If WARN is nonzero, we will warn if no file is found
2594 through this prefix. WARN should point to an int
2595 which will be set to 1 if this entry is used.
2597 COMPONENT is the value to be passed to update_path.
2599 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2600 the complete value of machine_suffix.
2601 2 means try both machine_suffix and just_machine_suffix. */
2604 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2605 const char *component
, /* enum prefix_priority */ int priority
,
2606 int require_machine_suffix
, int *warn
, int os_multilib
)
2608 struct prefix_list
*pl
, **prev
;
2611 for (prev
= &pprefix
->plist
;
2612 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2613 prev
= &(*prev
)->next
)
2616 /* Keep track of the longest prefix. */
2618 prefix
= update_path (prefix
, component
);
2619 len
= strlen (prefix
);
2620 if (len
> pprefix
->max_len
)
2621 pprefix
->max_len
= len
;
2623 pl
= xmalloc (sizeof (struct prefix_list
));
2624 pl
->prefix
= prefix
;
2625 pl
->require_machine_suffix
= require_machine_suffix
;
2626 pl
->used_flag_ptr
= warn
;
2627 pl
->priority
= priority
;
2628 pl
->os_multilib
= os_multilib
;
2632 /* Insert after PREV. */
2637 /* Same as add_prefix, but prepending target_system_root to prefix. */
2639 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2640 const char *component
,
2641 /* enum prefix_priority */ int priority
,
2642 int require_machine_suffix
, int *warn
, int os_multilib
)
2644 if (!IS_ABSOLUTE_PATH (prefix
))
2647 if (target_system_root
)
2649 if (target_sysroot_suffix
)
2650 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2651 prefix
= concat (target_system_root
, prefix
, NULL
);
2653 /* We have to override this because GCC's notion of sysroot
2654 moves along with GCC. */
2658 add_prefix (pprefix
, prefix
, component
, priority
,
2659 require_machine_suffix
, warn
, os_multilib
);
2662 /* Execute the command specified by the arguments on the current line of spec.
2663 When using pipes, this includes several piped-together commands
2664 with `|' between them.
2666 Return 0 if successful, -1 if failed. */
2672 int n_commands
; /* # of command. */
2676 const char *prog
; /* program name. */
2677 const char **argv
; /* vector of args. */
2678 int pid
; /* pid of process for this command. */
2681 struct command
*commands
; /* each command buffer with above info. */
2683 if (processing_spec_function
)
2686 /* Count # of piped commands. */
2687 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2688 if (strcmp (argbuf
[i
], "|") == 0)
2691 /* Get storage for each command. */
2692 commands
= alloca (n_commands
* sizeof (struct command
));
2694 /* Split argbuf into its separate piped processes,
2695 and record info about each one.
2696 Also search for the programs that are to be run. */
2698 commands
[0].prog
= argbuf
[0]; /* first command. */
2699 commands
[0].argv
= &argbuf
[0];
2700 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2703 commands
[0].argv
[0] = string
;
2705 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2706 if (strcmp (argbuf
[i
], "|") == 0)
2707 { /* each command. */
2708 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2709 fatal ("-pipe not supported");
2711 argbuf
[i
] = 0; /* termination of command args. */
2712 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2713 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2714 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2717 commands
[n_commands
].argv
[0] = string
;
2721 argbuf
[argbuf_index
] = 0;
2723 /* If -v, print what we are about to do, and maybe query. */
2727 /* For help listings, put a blank line between sub-processes. */
2728 if (print_help_list
)
2729 fputc ('\n', stderr
);
2731 /* Print each piped command as a separate line. */
2732 for (i
= 0; i
< n_commands
; i
++)
2734 const char *const *j
;
2736 if (verbose_only_flag
)
2738 for (j
= commands
[i
].argv
; *j
; j
++)
2741 fprintf (stderr
, " \"");
2742 for (p
= *j
; *p
; ++p
)
2744 if (*p
== '"' || *p
== '\\' || *p
== '$')
2745 fputc ('\\', stderr
);
2748 fputc ('"', stderr
);
2752 for (j
= commands
[i
].argv
; *j
; j
++)
2753 fprintf (stderr
, " %s", *j
);
2755 /* Print a pipe symbol after all but the last command. */
2756 if (i
+ 1 != n_commands
)
2757 fprintf (stderr
, " |");
2758 fprintf (stderr
, "\n");
2761 if (verbose_only_flag
!= 0)
2763 /* verbose_only_flag should act as if the spec was
2764 executed, so increment execution_count before
2765 returning. This prevents spurious warnings about
2766 unused linker input files, etc. */
2771 notice ("\nGo ahead? (y or n) ");
2775 while (getchar () != '\n')
2778 if (i
!= 'y' && i
!= 'Y')
2783 #ifdef ENABLE_VALGRIND_CHECKING
2784 /* Run the each command through valgrind. To simplify prepending the
2785 path to valgrind and the option "-q" (for quiet operation unless
2786 something triggers), we allocate a separate argv array. */
2788 for (i
= 0; i
< n_commands
; i
++)
2794 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2797 argv
= alloca ((argc
+ 3) * sizeof (char *));
2799 argv
[0] = VALGRIND_PATH
;
2801 for (j
= 2; j
< argc
+ 2; j
++)
2802 argv
[j
] = commands
[i
].argv
[j
- 2];
2805 commands
[i
].argv
= argv
;
2806 commands
[i
].prog
= argv
[0];
2810 /* Run each piped subprocess. */
2812 for (i
= 0; i
< n_commands
; i
++)
2814 char *errmsg_fmt
, *errmsg_arg
;
2815 const char *string
= commands
[i
].argv
[0];
2817 /* For some bizarre reason, the second argument of execvp() is
2818 char *const *, not const char *const *. */
2819 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2820 programname
, temp_filename
,
2821 &errmsg_fmt
, &errmsg_arg
,
2822 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2823 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2824 | (string
== commands
[i
].prog
2825 ? PEXECUTE_SEARCH
: 0)
2826 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2828 if (commands
[i
].pid
== -1)
2829 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2831 if (string
!= commands
[i
].prog
)
2832 free ((void *) string
);
2837 /* Wait for all the subprocesses to finish.
2838 We don't care what order they finish in;
2839 we know that N_COMMANDS waits will get them all.
2840 Ignore subprocesses that we don't know about,
2841 since they can be spawned by the process that exec'ed us. */
2845 #ifdef HAVE_GETRUSAGE
2847 double ut
= 0.0, st
= 0.0;
2850 for (i
= 0; i
< n_commands
;)
2856 pid
= pwait (commands
[i
].pid
, &status
, 0);
2860 #ifdef HAVE_GETRUSAGE
2863 /* getrusage returns the total resource usage of all children
2864 up to now. Copy the previous values into prus, get the
2865 current statistics, then take the difference. */
2868 getrusage (RUSAGE_CHILDREN
, &rus
);
2869 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2870 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2871 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2873 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2874 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2875 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2879 for (j
= 0; j
< n_commands
; j
++)
2880 if (commands
[j
].pid
== pid
)
2883 if (WIFSIGNALED (status
))
2886 /* SIGPIPE is a special case. It happens in -pipe mode
2887 when the compiler dies before the preprocessor is
2888 done, or the assembler dies before the compiler is
2889 done. There's generally been an error already, and
2890 this is just fallout. So don't generate another error
2891 unless we would otherwise have succeeded. */
2892 if (WTERMSIG (status
) == SIGPIPE
2893 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2898 Internal error: %s (program %s)\n\
2899 Please submit a full bug report.\n\
2900 See %s for instructions.",
2901 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2906 else if (WIFEXITED (status
)
2907 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2909 if (WEXITSTATUS (status
) > greatest_status
)
2910 greatest_status
= WEXITSTATUS (status
);
2913 #ifdef HAVE_GETRUSAGE
2914 if (report_times
&& ut
+ st
!= 0)
2915 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2924 /* Find all the switches given to us
2925 and make a vector describing them.
2926 The elements of the vector are strings, one per switch given.
2927 If a switch uses following arguments, then the `part1' field
2928 is the switch itself and the `args' field
2929 is a null-terminated vector containing the following arguments.
2930 The `live_cond' field is:
2932 1 if the switch is true in a conditional spec,
2933 -1 if false (overridden by a later switch)
2934 -2 if this switch should be ignored (used in %<S)
2935 The `validated' field is nonzero if any spec has looked at this switch;
2936 if it remains zero at the end of the run, it must be meaningless. */
2939 #define SWITCH_FALSE -1
2940 #define SWITCH_IGNORE -2
2941 #define SWITCH_LIVE 1
2948 unsigned char validated
;
2949 unsigned char ordering
;
2952 static struct switchstr
*switches
;
2954 static int n_switches
;
2959 const char *language
;
2960 struct compiler
*incompiler
;
2965 /* Also a vector of input files specified. */
2967 static struct infile
*infiles
;
2971 /* True if multiple input files are being compiled to a single
2974 static bool combine_inputs
;
2976 /* This counts the number of libraries added by lang_specific_driver, so that
2977 we can tell if there were any user supplied any files or libraries. */
2979 static int added_libraries
;
2981 /* And a vector of corresponding output files is made up later. */
2983 const char **outfiles
;
2985 /* Used to track if none of the -B paths are used. */
2988 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2989 static int *warn_std_ptr
= 0;
2991 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2993 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2994 is true if we should look for an executable suffix. DO_OBJ
2995 is true if we should look for an object suffix. */
2998 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2999 int do_obj ATTRIBUTE_UNUSED
)
3001 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3009 len
= strlen (name
);
3011 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3012 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3013 if (do_obj
&& len
> 2
3014 && name
[len
- 2] == '.'
3015 && name
[len
- 1] == 'o')
3017 obstack_grow (&obstack
, name
, len
- 2);
3018 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3019 name
= obstack_finish (&obstack
);
3023 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3024 /* If there is no filetype, make it the executable suffix (which includes
3025 the "."). But don't get confused if we have just "-o". */
3026 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3029 for (i
= len
- 1; i
>= 0; i
--)
3030 if (IS_DIR_SEPARATOR (name
[i
]))
3033 for (i
++; i
< len
; i
++)
3037 obstack_grow (&obstack
, name
, len
);
3038 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3039 strlen (TARGET_EXECUTABLE_SUFFIX
));
3040 name
= obstack_finish (&obstack
);
3047 /* Display the command line switches accepted by gcc. */
3051 printf (_("Usage: %s [options] file...\n"), programname
);
3052 fputs (_("Options:\n"), stdout
);
3054 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3055 fputs (_(" --help Display this information\n"), stdout
);
3056 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3058 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3059 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3060 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3061 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3062 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3063 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3064 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3065 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3066 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3068 -print-multi-lib Display the mapping between command line options and\n\
3069 multiple library search directories\n"), stdout
);
3070 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3071 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3072 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3073 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3074 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3075 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3076 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3077 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3078 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3079 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3080 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3081 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3082 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3083 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3084 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3085 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3086 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3087 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3088 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3089 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3090 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3091 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3093 -x <language> Specify the language of the following input files\n\
3094 Permissible languages include: c c++ assembler none\n\
3095 'none' means revert to the default behavior of\n\
3096 guessing the language based on the file's extension\n\
3100 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3101 passed on to the various sub-processes invoked by %s. In order to pass\n\
3102 other options on to these processes the -W<letter> options must be used.\n\
3105 /* The rest of the options are displayed by invocations of the various
3110 add_preprocessor_option (const char *option
, int len
)
3112 n_preprocessor_options
++;
3114 if (! preprocessor_options
)
3115 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3117 preprocessor_options
= xrealloc (preprocessor_options
,
3118 n_preprocessor_options
* sizeof (char *));
3120 preprocessor_options
[n_preprocessor_options
- 1] =
3121 save_string (option
, len
);
3125 add_assembler_option (const char *option
, int len
)
3127 n_assembler_options
++;
3129 if (! assembler_options
)
3130 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3132 assembler_options
= xrealloc (assembler_options
,
3133 n_assembler_options
* sizeof (char *));
3135 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3139 add_linker_option (const char *option
, int len
)
3143 if (! linker_options
)
3144 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3146 linker_options
= xrealloc (linker_options
,
3147 n_linker_options
* sizeof (char *));
3149 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3152 /* Create the vector `switches' and its contents.
3153 Store its length in `n_switches'. */
3156 process_command (int argc
, const char **argv
)
3161 const char *spec_lang
= 0;
3162 int last_language_n_infiles
;
3164 int lang_n_infiles
= 0;
3165 #ifdef MODIFY_TARGET_NAME
3166 int is_modify_target_name
;
3170 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3174 added_libraries
= 0;
3176 /* Figure compiler version from version string. */
3178 compiler_version
= temp1
= xstrdup (version_string
);
3180 for (; *temp1
; ++temp1
)
3189 /* If there is a -V or -b option (or both), process it now, before
3190 trying to interpret the rest of the command line. */
3191 if (argc
> 1 && argv
[1][0] == '-'
3192 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3194 const char *new_version
= DEFAULT_TARGET_VERSION
;
3195 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3196 const char *progname
= argv
[0];
3201 while (argc
> 1 && argv
[1][0] == '-'
3202 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3204 char opt
= argv
[1][1];
3206 if (argv
[1][2] != '\0')
3219 fatal ("`-%c' option must have argument", opt
);
3226 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3227 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3229 new_argv0
= xmemdup (progname
, baselen
,
3230 baselen
+ concat_length (new_version
, new_machine
,
3231 "-gcc-", NULL
) + 1);
3232 strcpy (new_argv0
+ baselen
, new_machine
);
3233 strcat (new_argv0
, "-gcc-");
3234 strcat (new_argv0
, new_version
);
3236 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3237 (argc
+ 1) * sizeof (argv
[0]));
3238 new_argv
[0] = new_argv0
;
3240 execvp (new_argv0
, new_argv
);
3241 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3244 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3245 see if we can create it from the pathname specified in argv[0]. */
3247 gcc_libexec_prefix
= standard_libexec_prefix
;
3249 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3250 if (!gcc_exec_prefix
)
3252 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3253 standard_exec_prefix
);
3254 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3255 standard_bindir_prefix
,
3256 standard_libexec_prefix
);
3257 if (gcc_exec_prefix
)
3258 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3261 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3262 standard_exec_prefix
,
3263 standard_libexec_prefix
);
3267 if (gcc_exec_prefix
)
3269 int len
= strlen (gcc_exec_prefix
);
3271 if (len
> (int) sizeof ("/lib/gcc/") - 1
3272 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3274 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3275 if (IS_DIR_SEPARATOR (*temp
)
3276 && strncmp (temp
+ 1, "lib", 3) == 0
3277 && IS_DIR_SEPARATOR (temp
[4])
3278 && strncmp (temp
+ 5, "gcc", 3) == 0)
3279 len
-= sizeof ("/lib/gcc/") - 1;
3282 set_std_prefix (gcc_exec_prefix
, len
);
3283 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3284 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3285 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3286 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3289 /* COMPILER_PATH and LIBRARY_PATH have values
3290 that are lists of directory names with colons. */
3292 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3295 const char *startp
, *endp
;
3296 char *nstore
= alloca (strlen (temp
) + 3);
3298 startp
= endp
= temp
;
3301 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3303 strncpy (nstore
, startp
, endp
- startp
);
3305 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3306 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3308 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3309 nstore
[endp
- startp
+ 1] = 0;
3312 nstore
[endp
- startp
] = 0;
3313 add_prefix (&exec_prefixes
, nstore
, 0,
3314 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3315 add_prefix (&include_prefixes
, nstore
, 0,
3316 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3319 endp
= startp
= endp
+ 1;
3326 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3327 if (temp
&& *cross_compile
== '0')
3329 const char *startp
, *endp
;
3330 char *nstore
= alloca (strlen (temp
) + 3);
3332 startp
= endp
= temp
;
3335 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3337 strncpy (nstore
, startp
, endp
- startp
);
3339 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3340 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3342 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3343 nstore
[endp
- startp
+ 1] = 0;
3346 nstore
[endp
- startp
] = 0;
3347 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3348 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3351 endp
= startp
= endp
+ 1;
3358 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3359 GET_ENVIRONMENT (temp
, "LPATH");
3360 if (temp
&& *cross_compile
== '0')
3362 const char *startp
, *endp
;
3363 char *nstore
= alloca (strlen (temp
) + 3);
3365 startp
= endp
= temp
;
3368 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3370 strncpy (nstore
, startp
, endp
- startp
);
3372 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3373 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3375 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3376 nstore
[endp
- startp
+ 1] = 0;
3379 nstore
[endp
- startp
] = 0;
3380 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3381 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3384 endp
= startp
= endp
+ 1;
3391 /* Convert new-style -- options to old-style. */
3392 translate_options (&argc
, (const char *const **) &argv
);
3394 /* Do language-specific adjustment/addition of flags. */
3395 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3397 /* Scan argv twice. Here, the first time, just count how many switches
3398 there will be in their vector, and how many input files in theirs.
3399 Here we also parse the switches that cc itself uses (e.g. -v). */
3401 for (i
= 1; i
< argc
; i
++)
3403 if (! strcmp (argv
[i
], "-dumpspecs"))
3405 struct spec_list
*sl
;
3407 for (sl
= specs
; sl
; sl
= sl
->next
)
3408 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3409 if (link_command_spec
)
3410 printf ("*link_command:\n%s\n\n", link_command_spec
);
3413 else if (! strcmp (argv
[i
], "-dumpversion"))
3415 printf ("%s\n", spec_version
);
3418 else if (! strcmp (argv
[i
], "-dumpmachine"))
3420 printf ("%s\n", spec_machine
);
3423 else if (strcmp (argv
[i
], "-fversion") == 0)
3425 /* translate_options () has turned --version into -fversion. */
3426 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3427 printf ("Copyright %s 2004 Free Software Foundation, Inc.\n",
3429 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3430 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3434 else if (strcmp (argv
[i
], "-fhelp") == 0)
3436 /* translate_options () has turned --help into -fhelp. */
3437 print_help_list
= 1;
3439 /* We will be passing a dummy file on to the sub-processes. */
3443 /* CPP driver cannot obtain switch from cc1_options. */
3445 add_preprocessor_option ("--help", 6);
3446 add_assembler_option ("--help", 6);
3447 add_linker_option ("--help", 6);
3449 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3451 /* translate_options() has turned --target-help into -ftarget-help. */
3452 target_help_flag
= 1;
3454 /* We will be passing a dummy file on to the sub-processes. */
3458 /* CPP driver cannot obtain switch from cc1_options. */
3460 add_preprocessor_option ("--target-help", 13);
3461 add_assembler_option ("--target-help", 13);
3462 add_linker_option ("--target-help", 13);
3464 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3466 pass_exit_codes
= 1;
3469 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3470 print_search_dirs
= 1;
3471 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3472 print_file_name
= "libgcc.a";
3473 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3474 print_file_name
= argv
[i
] + 17;
3475 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3476 print_prog_name
= argv
[i
] + 17;
3477 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3478 print_multi_lib
= 1;
3479 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3480 print_multi_directory
= 1;
3481 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3482 print_multi_os_directory
= 1;
3483 else if (! strncmp (argv
[i
], "-Wa,", 4))
3486 /* Pass the rest of this option to the assembler. */
3488 /* Split the argument at commas. */
3490 for (j
= 4; argv
[i
][j
]; j
++)
3491 if (argv
[i
][j
] == ',')
3493 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3497 /* Record the part after the last comma. */
3498 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3500 else if (! strncmp (argv
[i
], "-Wp,", 4))
3503 /* Pass the rest of this option to the preprocessor. */
3505 /* Split the argument at commas. */
3507 for (j
= 4; argv
[i
][j
]; j
++)
3508 if (argv
[i
][j
] == ',')
3510 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3514 /* Record the part after the last comma. */
3515 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3517 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3518 /* The +e options to the C++ front-end. */
3520 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3523 /* Split the argument at commas. */
3524 for (j
= 3; argv
[i
][j
]; j
++)
3525 n_infiles
+= (argv
[i
][j
] == ',');
3527 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3530 fatal ("argument to `-Xlinker' is missing");
3535 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3538 fatal ("argument to `-Xpreprocessor' is missing");
3540 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3542 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3545 fatal ("argument to `-Xassembler' is missing");
3547 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3549 else if (strcmp (argv
[i
], "-l") == 0)
3552 fatal ("argument to `-l' is missing");
3557 else if (strncmp (argv
[i
], "-l", 2) == 0)
3559 else if (strcmp (argv
[i
], "-save-temps") == 0)
3561 save_temps_flag
= 1;
3564 else if (strcmp (argv
[i
], "-combine") == 0)
3569 else if (strcmp (argv
[i
], "-specs") == 0)
3571 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3573 fatal ("argument to `-specs' is missing");
3575 user
->next
= (struct user_specs
*) 0;
3576 user
->filename
= argv
[i
];
3577 if (user_specs_tail
)
3578 user_specs_tail
->next
= user
;
3580 user_specs_head
= user
;
3581 user_specs_tail
= user
;
3583 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3585 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3586 if (strlen (argv
[i
]) == 7)
3587 fatal ("argument to `-specs=' is missing");
3589 user
->next
= (struct user_specs
*) 0;
3590 user
->filename
= argv
[i
] + 7;
3591 if (user_specs_tail
)
3592 user_specs_tail
->next
= user
;
3594 user_specs_head
= user
;
3595 user_specs_tail
= user
;
3597 else if (strcmp (argv
[i
], "-time") == 0)
3599 else if (strcmp (argv
[i
], "-pipe") == 0)
3601 /* -pipe has to go into the switches array as well as
3606 else if (strcmp (argv
[i
], "-###") == 0)
3608 /* This is similar to -v except that there is no execution
3609 of the commands and the echoed arguments are quoted. It
3610 is intended for use in shell scripts to capture the
3611 driver-generated command line. */
3612 verbose_only_flag
++;
3615 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3617 const char *p
= &argv
[i
][1];
3624 fatal ("`-%c' must come at the start of the command line", c
);
3632 if (p
[1] == 0 && i
+ 1 == argc
)
3633 fatal ("argument to `-B' is missing");
3639 len
= strlen (value
);
3641 /* Catch the case where the user has forgotten to append a
3642 directory separator to the path. Note, they may be using
3643 -B to add an executable name prefix, eg "i386-elf-", in
3644 order to distinguish between multiple installations of
3645 GCC in the same directory. Hence we must check to see
3646 if appending a directory separator actually makes a
3647 valid directory name. */
3648 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3649 && is_directory (value
, "", 0))
3651 char *tmp
= xmalloc (len
+ 2);
3652 strcpy (tmp
, value
);
3653 tmp
[len
] = DIR_SEPARATOR
;
3658 /* As a kludge, if the arg is "[foo/]stageN/", just
3659 add "[foo/]include" to the include prefix. */
3662 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3663 && strncmp (value
+ len
- 7, "stage", 5) == 0
3664 && ISDIGIT (value
[len
- 2])
3665 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3668 add_prefix (&include_prefixes
, "./", NULL
,
3669 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3672 char *string
= xmalloc (len
- 6);
3673 memcpy (string
, value
, len
- 7);
3674 string
[len
- 7] = 0;
3675 add_prefix (&include_prefixes
, string
, NULL
,
3676 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3680 add_prefix (&exec_prefixes
, value
, NULL
,
3681 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3682 add_prefix (&startfile_prefixes
, value
, NULL
,
3683 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3684 add_prefix (&include_prefixes
, value
, NULL
,
3685 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3690 case 'v': /* Print our subcommands and print versions. */
3692 /* If they do anything other than exactly `-v', don't set
3693 verbose_flag; rather, continue on to give the error. */
3710 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3715 /* Forward scan, just in case -S or -c is specified
3722 if (argv
[j
][0] == '-')
3724 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3730 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3731 j
+= skip
- (argv
[j
][2] != 0);
3732 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3739 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3741 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3743 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3750 #ifdef MODIFY_TARGET_NAME
3751 is_modify_target_name
= 0;
3753 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3754 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3756 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3757 + strlen (spec_machine
));
3760 int made_addition
= 0;
3762 is_modify_target_name
= 1;
3763 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3765 if (modify_target
[j
].add_del
== DELETE
3766 && (! strncmp (q
, modify_target
[j
].str
,
3767 strlen (modify_target
[j
].str
))))
3768 p
+= strlen (modify_target
[j
].str
);
3769 else if (modify_target
[j
].add_del
== ADD
3770 && ! made_addition
&& *p
== '-')
3772 for (r
= modify_target
[j
].str
; *r
!= 0; )
3780 spec_machine
= new_name
;
3783 if (is_modify_target_name
)
3789 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3790 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3791 else if (WORD_SWITCH_TAKES_ARG (p
))
3792 i
+= WORD_SWITCH_TAKES_ARG (p
);
3802 if ((save_temps_flag
|| report_times
) && use_pipes
)
3804 /* -save-temps overrides -pipe, so that temp files are produced */
3805 if (save_temps_flag
)
3806 error ("warning: -pipe ignored because -save-temps specified");
3807 /* -time overrides -pipe because we can't get correct stats when
3808 multiple children are running at once. */
3809 else if (report_times
)
3810 error ("warning: -pipe ignored because -time specified");
3815 /* Set up the search paths before we go looking for config files. */
3817 /* These come before the md prefixes so that we will find gcc's subcommands
3818 (such as cpp) rather than those of the host system. */
3819 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3820 as well as trying the machine and the version. */
3822 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3823 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3824 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3825 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3826 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3827 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3828 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3829 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3830 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3831 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3834 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3835 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3836 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3837 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3839 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3840 dir_separator_str
, NULL
);
3842 /* If tooldir is relative, base it on exec_prefixes. A relative
3843 tooldir lets us move the installed tree as a unit.
3845 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3846 directories, so that we can search both the user specified directory
3847 and the standard place. */
3849 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3851 if (gcc_exec_prefix
)
3853 char *gcc_exec_tooldir_prefix
3854 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3855 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3857 add_prefix (&exec_prefixes
,
3858 concat (gcc_exec_tooldir_prefix
, "bin",
3859 dir_separator_str
, NULL
),
3860 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3861 add_prefix (&startfile_prefixes
,
3862 concat (gcc_exec_tooldir_prefix
, "lib",
3863 dir_separator_str
, NULL
),
3864 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3867 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3868 dir_separator_str
, spec_version
,
3869 dir_separator_str
, tooldir_prefix
, NULL
);
3872 add_prefix (&exec_prefixes
,
3873 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3874 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3875 add_prefix (&startfile_prefixes
,
3876 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3877 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3879 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3880 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3881 then consider it to relocate with the rest of the GCC installation
3882 if GCC_EXEC_PREFIX is set.
3883 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3884 if (target_system_root
&& gcc_exec_prefix
)
3886 char *tmp_prefix
= make_relative_prefix (argv
[0],
3887 standard_bindir_prefix
,
3888 target_system_root
);
3889 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3891 target_system_root
= tmp_prefix
;
3892 target_system_root_changed
= 1;
3897 /* More prefixes are enabled in main, after we read the specs file
3898 and determine whether this is cross-compilation or not. */
3900 /* Then create the space for the vectors and scan again. */
3902 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3903 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3906 last_language_n_infiles
= -1;
3908 /* This, time, copy the text of each switch and store a pointer
3909 to the copy in the vector of switches.
3910 Store all the infiles in their vector. */
3912 for (i
= 1; i
< argc
; i
++)
3914 /* Just skip the switches that were handled by the preceding loop. */
3915 #ifdef MODIFY_TARGET_NAME
3916 is_modify_target_name
= 0;
3918 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3919 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3920 is_modify_target_name
= 1;
3922 if (is_modify_target_name
)
3926 if (! strncmp (argv
[i
], "-Wa,", 4))
3928 else if (! strncmp (argv
[i
], "-Wp,", 4))
3930 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3932 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3934 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3936 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3938 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3940 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3942 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3944 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3946 else if (! strcmp (argv
[i
], "-ftarget-help"))
3948 else if (! strcmp (argv
[i
], "-fhelp"))
3950 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3952 /* Compensate for the +e options to the C++ front-end;
3953 they're there simply for cfront call-compatibility. We do
3954 some magic in default_compilers to pass them down properly.
3955 Note we deliberately start at the `+' here, to avoid passing
3956 -e0 or -e1 down into the linker. */
3957 switches
[n_switches
].part1
= &argv
[i
][0];
3958 switches
[n_switches
].args
= 0;
3959 switches
[n_switches
].live_cond
= SWITCH_OK
;
3960 switches
[n_switches
].validated
= 0;
3963 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3966 /* Split the argument at commas. */
3968 for (j
= 4; argv
[i
][j
]; j
++)
3969 if (argv
[i
][j
] == ',')
3971 infiles
[n_infiles
].language
= "*";
3972 infiles
[n_infiles
++].name
3973 = save_string (argv
[i
] + prev
, j
- prev
);
3976 /* Record the part after the last comma. */
3977 infiles
[n_infiles
].language
= "*";
3978 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3980 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3982 infiles
[n_infiles
].language
= "*";
3983 infiles
[n_infiles
++].name
= argv
[++i
];
3985 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3987 infiles
[n_infiles
].language
= "*";
3988 infiles
[n_infiles
++].name
= argv
[++i
];
3990 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3992 infiles
[n_infiles
].language
= "*";
3993 infiles
[n_infiles
++].name
= argv
[++i
];
3995 else if (strcmp (argv
[i
], "-l") == 0)
3996 { /* POSIX allows separation of -l and the lib arg;
3997 canonicalize by concatenating -l with its arg */
3998 infiles
[n_infiles
].language
= "*";
3999 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4001 else if (strncmp (argv
[i
], "-l", 2) == 0)
4003 infiles
[n_infiles
].language
= "*";
4004 infiles
[n_infiles
++].name
= argv
[i
];
4006 else if (strcmp (argv
[i
], "-specs") == 0)
4008 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4010 else if (strcmp (argv
[i
], "-time") == 0)
4012 else if (strcmp (argv
[i
], "-###") == 0)
4014 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4016 const char *p
= &argv
[i
][1];
4021 if (p
[1] == 0 && i
+ 1 == argc
)
4022 fatal ("argument to `-x' is missing");
4024 spec_lang
= argv
[++i
];
4027 if (! strcmp (spec_lang
, "none"))
4028 /* Suppress the warning if -xnone comes after the last input
4029 file, because alternate command interfaces like g++ might
4030 find it useful to place -xnone after each input file. */
4033 last_language_n_infiles
= n_infiles
;
4036 switches
[n_switches
].part1
= p
;
4037 /* Deal with option arguments in separate argv elements. */
4038 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4039 || WORD_SWITCH_TAKES_ARG (p
))
4042 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4046 /* Count only the option arguments in separate argv elements. */
4047 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4049 if (i
+ n_args
>= argc
)
4050 fatal ("argument to `-%s' is missing", p
);
4051 switches
[n_switches
].args
4052 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4054 switches
[n_switches
].args
[j
++] = argv
[++i
];
4055 /* Null-terminate the vector. */
4056 switches
[n_switches
].args
[j
] = 0;
4058 else if (strchr (switches_need_spaces
, c
))
4060 /* On some systems, ld cannot handle some options without
4061 a space. So split the option from its argument. */
4062 char *part1
= xmalloc (2);
4066 switches
[n_switches
].part1
= part1
;
4067 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4068 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4069 switches
[n_switches
].args
[1] = 0;
4072 switches
[n_switches
].args
= 0;
4074 switches
[n_switches
].live_cond
= SWITCH_OK
;
4075 switches
[n_switches
].validated
= 0;
4076 switches
[n_switches
].ordering
= 0;
4077 /* These are always valid, since gcc.c itself understands them. */
4078 if (!strcmp (p
, "save-temps")
4079 || !strcmp (p
, "static-libgcc")
4080 || !strcmp (p
, "shared-libgcc")
4081 || !strcmp (p
, "pipe"))
4082 switches
[n_switches
].validated
= 1;
4085 char ch
= switches
[n_switches
].part1
[0];
4087 switches
[n_switches
].validated
= 1;
4093 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4094 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4097 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4099 perror_with_name (argv
[i
]);
4104 infiles
[n_infiles
].language
= spec_lang
;
4105 infiles
[n_infiles
++].name
= argv
[i
];
4110 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4111 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4113 /* Ensure we only invoke each subprocess once. */
4114 if (target_help_flag
|| print_help_list
)
4118 /* Create a dummy input file, so that we can pass --target-help on to
4119 the various sub-processes. */
4120 infiles
[0].language
= "c";
4121 infiles
[0].name
= "help-dummy";
4123 if (target_help_flag
)
4125 switches
[n_switches
].part1
= "--target-help";
4126 switches
[n_switches
].args
= 0;
4127 switches
[n_switches
].live_cond
= SWITCH_OK
;
4128 switches
[n_switches
].validated
= 0;
4133 if (print_help_list
)
4135 switches
[n_switches
].part1
= "--help";
4136 switches
[n_switches
].args
= 0;
4137 switches
[n_switches
].live_cond
= SWITCH_OK
;
4138 switches
[n_switches
].validated
= 0;
4144 switches
[n_switches
].part1
= 0;
4145 infiles
[n_infiles
].name
= 0;
4148 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4149 and place that in the environment. */
4152 set_collect_gcc_options (void)
4157 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4159 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4160 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4163 for (i
= 0; (int) i
< n_switches
; i
++)
4165 const char *const *args
;
4168 obstack_grow (&collect_obstack
, " ", 1);
4172 /* Ignore elided switches. */
4173 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4176 obstack_grow (&collect_obstack
, "'-", 2);
4177 q
= switches
[i
].part1
;
4178 while ((p
= strchr (q
, '\'')))
4180 obstack_grow (&collect_obstack
, q
, p
- q
);
4181 obstack_grow (&collect_obstack
, "'\\''", 4);
4184 obstack_grow (&collect_obstack
, q
, strlen (q
));
4185 obstack_grow (&collect_obstack
, "'", 1);
4187 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4189 obstack_grow (&collect_obstack
, " '", 2);
4191 while ((p
= strchr (q
, '\'')))
4193 obstack_grow (&collect_obstack
, q
, p
- q
);
4194 obstack_grow (&collect_obstack
, "'\\''", 4);
4197 obstack_grow (&collect_obstack
, q
, strlen (q
));
4198 obstack_grow (&collect_obstack
, "'", 1);
4201 obstack_grow (&collect_obstack
, "\0", 1);
4202 putenv (obstack_finish (&collect_obstack
));
4205 /* Process a spec string, accumulating and running commands. */
4207 /* These variables describe the input file name.
4208 input_file_number is the index on outfiles of this file,
4209 so that the output file name can be stored for later use by %o.
4210 input_basename is the start of the part of the input file
4211 sans all directory names, and basename_length is the number
4212 of characters starting there excluding the suffix .c or whatever. */
4214 static const char *input_filename
;
4215 static int input_file_number
;
4216 size_t input_filename_length
;
4217 static int basename_length
;
4218 static int suffixed_basename_length
;
4219 static const char *input_basename
;
4220 static const char *input_suffix
;
4221 static struct stat input_stat
;
4222 static int input_stat_set
;
4224 /* The compiler used to process the current input file. */
4225 static struct compiler
*input_file_compiler
;
4227 /* These are variables used within do_spec and do_spec_1. */
4229 /* Nonzero if an arg has been started and not yet terminated
4230 (with space, tab or newline). */
4231 static int arg_going
;
4233 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4234 is a temporary file name. */
4235 static int delete_this_arg
;
4237 /* Nonzero means %w has been seen; the next arg to be terminated
4238 is the output file name of this compilation. */
4239 static int this_is_output_file
;
4241 /* Nonzero means %s has been seen; the next arg to be terminated
4242 is the name of a library file and we should try the standard
4243 search dirs for it. */
4244 static int this_is_library_file
;
4246 /* Nonzero means that the input of this command is coming from a pipe. */
4247 static int input_from_pipe
;
4249 /* Nonnull means substitute this for any suffix when outputting a switches
4251 static const char *suffix_subst
;
4253 /* Process the spec SPEC and run the commands specified therein.
4254 Returns 0 if the spec is successfully processed; -1 if failed. */
4257 do_spec (const char *spec
)
4261 value
= do_spec_2 (spec
);
4263 /* Force out any unfinished command.
4264 If -pipe, this forces out the last command if it ended in `|'. */
4267 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4270 set_collect_gcc_options ();
4272 if (argbuf_index
> 0)
4280 do_spec_2 (const char *spec
)
4287 delete_this_arg
= 0;
4288 this_is_output_file
= 0;
4289 this_is_library_file
= 0;
4290 input_from_pipe
= 0;
4291 suffix_subst
= NULL
;
4293 result
= do_spec_1 (spec
, 0, NULL
);
4295 /* End any pending argument. */
4298 obstack_1grow (&obstack
, 0);
4299 string
= obstack_finish (&obstack
);
4300 if (this_is_library_file
)
4301 string
= find_file (string
);
4302 store_arg (string
, delete_this_arg
, this_is_output_file
);
4303 if (this_is_output_file
)
4304 outfiles
[input_file_number
] = string
;
4312 /* Process the given spec string and add any new options to the end
4313 of the switches/n_switches array. */
4316 do_option_spec (const char *name
, const char *spec
)
4318 unsigned int i
, value_count
, value_len
;
4319 const char *p
, *q
, *value
;
4320 char *tmp_spec
, *tmp_spec_p
;
4322 if (configure_default_options
[0].name
== NULL
)
4325 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4326 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4328 if (i
== ARRAY_SIZE (configure_default_options
))
4331 value
= configure_default_options
[i
].value
;
4332 value_len
= strlen (value
);
4334 /* Compute the size of the final spec. */
4337 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4343 /* Replace each %(VALUE) by the specified value. */
4344 tmp_spec
= alloca (strlen (spec
) + 1
4345 + value_count
* (value_len
- strlen ("%(VALUE)")));
4346 tmp_spec_p
= tmp_spec
;
4348 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4350 memcpy (tmp_spec_p
, q
, p
- q
);
4351 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4352 memcpy (tmp_spec_p
, value
, value_len
);
4353 tmp_spec_p
+= value_len
;
4354 q
= p
+ strlen ("%(VALUE)");
4356 strcpy (tmp_spec_p
, q
);
4358 do_self_spec (tmp_spec
);
4361 /* Process the given spec string and add any new options to the end
4362 of the switches/n_switches array. */
4365 do_self_spec (const char *spec
)
4368 do_spec_1 (" ", 0, NULL
);
4370 if (argbuf_index
> 0)
4375 n_switches
+= argbuf_index
;
4376 switches
= xrealloc (switches
,
4377 sizeof (struct switchstr
) * (n_switches
+ 1));
4379 switches
[n_switches
] = switches
[first
];
4380 for (i
= 0; i
< argbuf_index
; i
++)
4382 struct switchstr
*sw
;
4384 /* Each switch should start with '-'. */
4385 if (argbuf
[i
][0] != '-')
4388 sw
= &switches
[i
+ first
];
4389 sw
->part1
= &argbuf
[i
][1];
4391 sw
->live_cond
= SWITCH_OK
;
4399 do_spec_path (struct prefix_list
*pl
, const char *option
,
4400 int omit_if_relative
, int separate_options
,
4402 const char *dir_for_machine_suffix
,
4403 const char *dir_for_no_suffix
)
4405 static size_t bufsize
= 0;
4406 static char *buffer
;
4409 /* Used on systems which record the specified -L dirs
4410 and use them to search for dynamic linking. */
4411 /* Relative directories always come from -B,
4412 and it is better not to use them for searching
4413 at run time. In particular, stage1 loses. */
4414 if (omit_if_relative
4415 && !IS_ABSOLUTE_PATH (pl
->prefix
))
4418 /* Try subdirectory if there is one. */
4419 if (machine_suffix
&& dir_for_machine_suffix
)
4421 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4423 bufsize
= (strlen (pl
->prefix
)
4424 + strlen (machine_suffix
)) * 2 + 1;
4425 buffer
= xrealloc (buffer
, bufsize
);
4426 strcpy (buffer
, pl
->prefix
);
4427 strcat (buffer
, machine_suffix
);
4428 if (is_directory (buffer
, dir_for_machine_suffix
, 1))
4430 do_spec_1 (option
, separate_options
, NULL
);
4431 if (separate_options
)
4432 do_spec_1 (" ", 0, NULL
);
4433 do_spec_1 (buffer
, 1, NULL
);
4434 do_spec_1 (dir_for_machine_suffix
, 1, NULL
);
4435 /* Make this a separate argument. */
4436 do_spec_1 (" ", 0, NULL
);
4439 if (!pl
->require_machine_suffix
&& dir_for_no_suffix
)
4441 if (is_directory (pl
->prefix
, dir_for_no_suffix
, 1))
4443 do_spec_1 (option
, separate_options
, NULL
);
4444 if (separate_options
)
4445 do_spec_1 (" ", 0, NULL
);
4446 do_spec_1 (pl
->prefix
, 1, NULL
);
4447 do_spec_1 (dir_for_no_suffix
, 1, NULL
);
4448 /* Make this a separate argument. */
4449 do_spec_1 (" ", 0, NULL
);
4458 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4460 do_spec_1 (option
, separate_options
, NULL
);
4461 if (separate_options
)
4462 do_spec_1 (" ", 0, NULL
);
4463 do_spec_1 (pl
->prefix
, 1, NULL
);
4464 /* Remove slash from machine_suffix. */
4465 if (strlen (machine_suffix
) >= bufsize
)
4466 bufsize
= strlen (machine_suffix
) * 2 + 1;
4467 buffer
= xrealloc (buffer
, bufsize
);
4468 strcpy (buffer
, machine_suffix
);
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
);
4477 if (!pl
->require_machine_suffix
)
4479 if (is_directory (pl
->prefix
, "", 1))
4481 do_spec_1 (option
, separate_options
, NULL
);
4482 if (separate_options
)
4483 do_spec_1 (" ", 0, NULL
);
4484 /* Remove slash from pl->prefix. */
4485 if (strlen (pl
->prefix
) >= bufsize
)
4486 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4487 buffer
= xrealloc (buffer
, bufsize
);
4488 strcpy (buffer
, pl
->prefix
);
4489 idx
= strlen (buffer
);
4490 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4491 buffer
[idx
- 1] = 0;
4492 do_spec_1 (buffer
, 1, NULL
);
4493 /* Make this a separate argument. */
4494 do_spec_1 (" ", 0, NULL
);
4499 /* Process the sub-spec SPEC as a portion of a larger spec.
4500 This is like processing a whole spec except that we do
4501 not initialize at the beginning and we do not supply a
4502 newline by default at the end.
4503 INSWITCH nonzero means don't process %-sequences in SPEC;
4504 in this case, % is treated as an ordinary character.
4505 This is used while substituting switches.
4506 INSWITCH nonzero also causes SPC not to terminate an argument.
4508 Value is zero unless a line was finished
4509 and the command on that line reported an error. */
4512 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4514 const char *p
= spec
;
4521 /* If substituting a switch, treat all chars like letters.
4522 Otherwise, NL, SPC, TAB and % are special. */
4523 switch (inswitch
? 'a' : c
)
4526 /* End of line: finish any pending argument,
4527 then run the pending command if one has been started. */
4530 obstack_1grow (&obstack
, 0);
4531 string
= obstack_finish (&obstack
);
4532 if (this_is_library_file
)
4533 string
= find_file (string
);
4534 store_arg (string
, delete_this_arg
, this_is_output_file
);
4535 if (this_is_output_file
)
4536 outfiles
[input_file_number
] = string
;
4540 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4542 /* A `|' before the newline means use a pipe here,
4543 but only if -pipe was specified.
4544 Otherwise, execute now and don't pass the `|' as an arg. */
4547 input_from_pipe
= 1;
4554 set_collect_gcc_options ();
4556 if (argbuf_index
> 0)
4562 /* Reinitialize for a new command, and for a new argument. */
4565 delete_this_arg
= 0;
4566 this_is_output_file
= 0;
4567 this_is_library_file
= 0;
4568 input_from_pipe
= 0;
4572 /* End any pending argument. */
4575 obstack_1grow (&obstack
, 0);
4576 string
= obstack_finish (&obstack
);
4577 if (this_is_library_file
)
4578 string
= find_file (string
);
4579 store_arg (string
, delete_this_arg
, this_is_output_file
);
4580 if (this_is_output_file
)
4581 outfiles
[input_file_number
] = string
;
4585 obstack_1grow (&obstack
, c
);
4591 /* Space or tab ends an argument if one is pending. */
4594 obstack_1grow (&obstack
, 0);
4595 string
= obstack_finish (&obstack
);
4596 if (this_is_library_file
)
4597 string
= find_file (string
);
4598 store_arg (string
, delete_this_arg
, this_is_output_file
);
4599 if (this_is_output_file
)
4600 outfiles
[input_file_number
] = string
;
4602 /* Reinitialize for a new argument. */
4604 delete_this_arg
= 0;
4605 this_is_output_file
= 0;
4606 this_is_library_file
= 0;
4613 fatal ("invalid specification! Bug in cc");
4616 obstack_grow (&obstack
, input_basename
, basename_length
);
4621 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4626 delete_this_arg
= 2;
4629 /* Dump out the directories specified with LIBRARY_PATH,
4630 followed by the absolute directories
4631 that we search for startfiles. */
4634 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4636 for (; pl
; pl
= pl
->next
)
4638 const char *no_suffix_multilib_dir
;
4640 no_suffix_multilib_dir
= pl
->os_multilib
? multilib_os_dir
4642 /* Do not separate options, include non-multilibbed variant. */
4643 do_spec_path (pl
, "-L",
4644 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4649 0, 0, multilib_dir
, no_suffix_multilib_dir
);
4655 /* %efoo means report an error with `foo' as error message
4656 and don't execute any more commands for this file. */
4660 while (*p
!= 0 && *p
!= '\n')
4662 buf
= alloca (p
- q
+ 1);
4663 strncpy (buf
, q
, p
- q
);
4670 /* %nfoo means report a notice with `foo' on stderr. */
4674 while (*p
!= 0 && *p
!= '\n')
4676 buf
= alloca (p
- q
+ 1);
4677 strncpy (buf
, q
, p
- q
);
4679 notice ("%s\n", buf
);
4689 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4690 defined, and it is not a directory, and it is
4691 writable, use it. Otherwise, treat this like any
4692 other temporary file. */
4694 if ((!save_temps_flag
)
4695 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4696 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4698 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4699 strlen (HOST_BIT_BUCKET
));
4700 delete_this_arg
= 0;
4705 goto create_temp_file
;
4709 obstack_1grow (&obstack
, '-');
4710 delete_this_arg
= 0;
4713 /* consume suffix */
4714 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4716 if (p
[0] == '%' && p
[1] == 'O')
4721 goto create_temp_file
;
4725 /* consume suffix */
4726 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4728 if (p
[0] == '%' && p
[1] == 'O')
4733 goto create_temp_file
;
4739 struct temp_name
*t
;
4741 const char *suffix
= p
;
4742 char *saved_suffix
= NULL
;
4744 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4746 suffix_length
= p
- suffix
;
4747 if (p
[0] == '%' && p
[1] == 'O')
4750 /* We don't support extra suffix characters after %O. */
4751 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4753 if (suffix_length
== 0)
4754 suffix
= TARGET_OBJECT_SUFFIX
;
4758 = xmalloc (suffix_length
4759 + strlen (TARGET_OBJECT_SUFFIX
));
4760 strncpy (saved_suffix
, suffix
, suffix_length
);
4761 strcpy (saved_suffix
+ suffix_length
,
4762 TARGET_OBJECT_SUFFIX
);
4764 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4767 /* If the input_filename has the same suffix specified
4768 for the %g, %u, or %U, and -save-temps is specified,
4769 we could end up using that file as an intermediate
4770 thus clobbering the user's source file (.e.g.,
4771 gcc -save-temps foo.s would clobber foo.s with the
4772 output of cpp0). So check for this condition and
4773 generate a temp file as the intermediate. */
4775 if (save_temps_flag
)
4777 temp_filename_length
= basename_length
+ suffix_length
;
4778 temp_filename
= alloca (temp_filename_length
+ 1);
4779 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4780 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4782 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4783 if (strcmp (temp_filename
, input_filename
) != 0)
4785 struct stat st_temp
;
4787 /* Note, set_input() resets input_stat_set to 0. */
4788 if (input_stat_set
== 0)
4790 input_stat_set
= stat (input_filename
, &input_stat
);
4791 if (input_stat_set
>= 0)
4795 /* If we have the stat for the input_filename
4796 and we can do the stat for the temp_filename
4797 then the they could still refer to the same
4798 file if st_dev/st_ino's are the same. */
4800 if (input_stat_set
!= 1
4801 || stat (temp_filename
, &st_temp
) < 0
4802 || input_stat
.st_dev
!= st_temp
.st_dev
4803 || input_stat
.st_ino
!= st_temp
.st_ino
)
4805 temp_filename
= save_string (temp_filename
,
4806 temp_filename_length
+ 1);
4807 obstack_grow (&obstack
, temp_filename
,
4808 temp_filename_length
);
4810 delete_this_arg
= 0;
4816 /* See if we already have an association of %g/%u/%U and
4818 for (t
= temp_names
; t
; t
= t
->next
)
4819 if (t
->length
== suffix_length
4820 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4821 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4824 /* Make a new association if needed. %u and %j
4826 if (t
== 0 || c
== 'u' || c
== 'j')
4830 t
= xmalloc (sizeof (struct temp_name
));
4831 t
->next
= temp_names
;
4834 t
->length
= suffix_length
;
4837 t
->suffix
= saved_suffix
;
4838 saved_suffix
= NULL
;
4841 t
->suffix
= save_string (suffix
, suffix_length
);
4842 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4843 temp_filename
= make_temp_file (t
->suffix
);
4844 temp_filename_length
= strlen (temp_filename
);
4845 t
->filename
= temp_filename
;
4846 t
->filename_length
= temp_filename_length
;
4850 free (saved_suffix
);
4852 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4853 delete_this_arg
= 1;
4861 for (i
= 0; (int) i
< n_infiles
; i
++)
4862 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4863 if (infiles
[i
].incompiler
== input_file_compiler
)
4865 store_arg (infiles
[i
].name
, 0, 0);
4866 infiles
[i
].compiled
= true;
4871 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4878 struct prefix_list
*pl
= include_prefixes
.plist
;
4880 if (gcc_exec_prefix
)
4882 do_spec_1 ("-iprefix", 1, NULL
);
4883 /* Make this a separate argument. */
4884 do_spec_1 (" ", 0, NULL
);
4885 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4886 do_spec_1 (" ", 0, NULL
);
4889 if (target_system_root_changed
||
4890 (target_system_root
&& target_sysroot_hdrs_suffix
))
4892 do_spec_1 ("-isysroot", 1, NULL
);
4893 /* Make this a separate argument. */
4894 do_spec_1 (" ", 0, NULL
);
4895 do_spec_1 (target_system_root
, 1, NULL
);
4896 if (target_sysroot_hdrs_suffix
)
4897 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4898 do_spec_1 (" ", 0, NULL
);
4901 for (; pl
; pl
= pl
->next
)
4902 /* Separate options, don't include non-suffixed variant. */
4903 do_spec_path (pl
, "-isystem", 0, 1, 1, "include", "include");
4909 int max
= n_infiles
;
4910 max
+= lang_specific_extra_outfiles
;
4912 for (i
= 0; i
< max
; i
++)
4914 store_arg (outfiles
[i
], 0, 0);
4919 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4924 this_is_library_file
= 1;
4928 outfiles
[input_file_number
] = NULL
;
4932 this_is_output_file
= 1;
4937 int cur_index
= argbuf_index
;
4938 /* Handle the {...} following the %W. */
4941 p
= handle_braces (p
+ 1);
4944 /* End any pending argument. */
4947 obstack_1grow (&obstack
, 0);
4948 string
= obstack_finish (&obstack
);
4949 if (this_is_library_file
)
4950 string
= find_file (string
);
4951 store_arg (string
, delete_this_arg
, this_is_output_file
);
4952 if (this_is_output_file
)
4953 outfiles
[input_file_number
] = string
;
4956 /* If any args were output, mark the last one for deletion
4958 if (argbuf_index
!= cur_index
)
4959 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4963 /* %x{OPTION} records OPTION for %X to output. */
4969 /* Skip past the option value and make a copy. */
4974 string
= save_string (p1
+ 1, p
- p1
- 2);
4976 /* See if we already recorded this option. */
4977 for (i
= 0; i
< n_linker_options
; i
++)
4978 if (! strcmp (string
, linker_options
[i
]))
4984 /* This option is new; add it. */
4985 add_linker_option (string
, strlen (string
));
4989 /* Dump out the options accumulated previously using %x. */
4991 for (i
= 0; i
< n_linker_options
; i
++)
4993 do_spec_1 (linker_options
[i
], 1, NULL
);
4994 /* Make each accumulated option a separate argument. */
4995 do_spec_1 (" ", 0, NULL
);
4999 /* Dump out the options accumulated previously using -Wa,. */
5001 for (i
= 0; i
< n_assembler_options
; i
++)
5003 do_spec_1 (assembler_options
[i
], 1, NULL
);
5004 /* Make each accumulated option a separate argument. */
5005 do_spec_1 (" ", 0, NULL
);
5009 /* Dump out the options accumulated previously using -Wp,. */
5011 for (i
= 0; i
< n_preprocessor_options
; i
++)
5013 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5014 /* Make each accumulated option a separate argument. */
5015 do_spec_1 (" ", 0, NULL
);
5019 /* Here are digits and numbers that just process
5020 a certain constant string as a spec. */
5023 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5029 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5035 value
= do_spec_1 (asm_spec
, 0, NULL
);
5041 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5048 const char *const spec
5049 = (input_file_compiler
->cpp_spec
5050 ? input_file_compiler
->cpp_spec
5052 value
= do_spec_1 (spec
, 0, NULL
);
5059 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5065 value
= do_spec_1 (link_spec
, 0, NULL
);
5071 value
= do_spec_1 (lib_spec
, 0, NULL
);
5077 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5083 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
5089 len
= strlen (multilib_dir
);
5090 obstack_blank (&obstack
, len
+ 1);
5091 p
= obstack_next_free (&obstack
) - (len
+ 1);
5094 for (q
= multilib_dir
; *q
; ++q
, ++p
)
5095 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
5100 /* We assume there is a directory
5101 separator at the end of this string. */
5102 if (target_system_root
)
5104 obstack_grow (&obstack
, target_system_root
,
5105 strlen (target_system_root
));
5106 if (target_sysroot_suffix
)
5107 obstack_grow (&obstack
, target_sysroot_suffix
,
5108 strlen (target_sysroot_suffix
));
5113 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5118 /* Here we define characters other than letters and digits. */
5121 p
= handle_braces (p
);
5127 p
= handle_spec_function (p
);
5133 obstack_1grow (&obstack
, '%');
5140 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5142 suffix_subst
= save_string (p
- 1, len
+ 1);
5147 /* Henceforth ignore the option(s) matching the pattern
5152 int have_wildcard
= 0;
5155 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5158 if (p
[len
-1] == '*')
5161 for (i
= 0; i
< n_switches
; i
++)
5162 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5163 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5165 switches
[i
].live_cond
= SWITCH_IGNORE
;
5166 switches
[i
].validated
= 1;
5174 if (soft_matched_part
)
5176 do_spec_1 (soft_matched_part
, 1, NULL
);
5177 do_spec_1 (" ", 0, NULL
);
5180 /* Catch the case where a spec string contains something like
5181 '%{foo:%*}'. ie there is no * in the pattern on the left
5182 hand side of the :. */
5183 error ("spec failure: '%%*' has not been initialized by pattern match");
5186 /* Process a string found as the value of a spec given by name.
5187 This feature allows individual machine descriptions
5188 to add and use their own specs.
5189 %[...] modifies -D options the way %P does;
5190 %(...) uses the spec unmodified. */
5192 error ("warning: use of obsolete %%[ operator in specs");
5195 const char *name
= p
;
5196 struct spec_list
*sl
;
5199 /* The string after the S/P is the name of a spec that is to be
5201 while (*p
&& *p
!= ')' && *p
!= ']')
5204 /* See if it's in the list. */
5205 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5206 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5208 name
= *(sl
->ptr_spec
);
5210 notice ("Processing spec %c%s%c, which is '%s'\n",
5211 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5220 value
= do_spec_1 (name
, 0, NULL
);
5226 char *x
= alloca (strlen (name
) * 2 + 1);
5228 const char *y
= name
;
5231 /* Copy all of NAME into BUF, but put __ after
5232 every -D and at the end of each arg. */
5235 if (! strncmp (y
, "-D", 2))
5246 && (*y
== ' ' || *y
== '\t' || *y
== '='
5247 || *y
== '}' || *y
== 0))
5260 value
= do_spec_1 (buf
, 0, NULL
);
5266 /* Discard the closing paren or bracket. */
5273 error ("spec failure: unrecognized spec option '%c'", c
);
5279 /* Backslash: treat next character as ordinary. */
5284 /* Ordinary character: put it into the current argument. */
5285 obstack_1grow (&obstack
, c
);
5289 /* End of string. If we are processing a spec function, we need to
5290 end any pending argument. */
5291 if (processing_spec_function
&& arg_going
)
5293 obstack_1grow (&obstack
, 0);
5294 string
= obstack_finish (&obstack
);
5295 if (this_is_library_file
)
5296 string
= find_file (string
);
5297 store_arg (string
, delete_this_arg
, this_is_output_file
);
5298 if (this_is_output_file
)
5299 outfiles
[input_file_number
] = string
;
5306 /* Look up a spec function. */
5308 static const struct spec_function
*
5309 lookup_spec_function (const char *name
)
5311 static const struct spec_function
* const spec_function_tables
[] =
5313 static_spec_functions
,
5314 lang_specific_spec_functions
,
5316 const struct spec_function
*sf
;
5319 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5321 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5322 if (strcmp (sf
->name
, name
) == 0)
5329 /* Evaluate a spec function. */
5332 eval_spec_function (const char *func
, const char *args
)
5334 const struct spec_function
*sf
;
5335 const char *funcval
;
5337 /* Saved spec processing context. */
5338 int save_argbuf_index
;
5339 int save_argbuf_length
;
5340 const char **save_argbuf
;
5343 int save_delete_this_arg
;
5344 int save_this_is_output_file
;
5345 int save_this_is_library_file
;
5346 int save_input_from_pipe
;
5347 const char *save_suffix_subst
;
5350 sf
= lookup_spec_function (func
);
5352 fatal ("unknown spec function `%s'", func
);
5354 /* Push the spec processing context. */
5355 save_argbuf_index
= argbuf_index
;
5356 save_argbuf_length
= argbuf_length
;
5357 save_argbuf
= argbuf
;
5359 save_arg_going
= arg_going
;
5360 save_delete_this_arg
= delete_this_arg
;
5361 save_this_is_output_file
= this_is_output_file
;
5362 save_this_is_library_file
= this_is_library_file
;
5363 save_input_from_pipe
= input_from_pipe
;
5364 save_suffix_subst
= suffix_subst
;
5366 /* Create a new spec processing context, and build the function
5370 if (do_spec_2 (args
) < 0)
5371 fatal ("error in args to spec function `%s'", func
);
5373 /* argbuf_index is an index for the next argument to be inserted, and
5374 so contains the count of the args already inserted. */
5376 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5378 /* Pop the spec processing context. */
5379 argbuf_index
= save_argbuf_index
;
5380 argbuf_length
= save_argbuf_length
;
5382 argbuf
= save_argbuf
;
5384 arg_going
= save_arg_going
;
5385 delete_this_arg
= save_delete_this_arg
;
5386 this_is_output_file
= save_this_is_output_file
;
5387 this_is_library_file
= save_this_is_library_file
;
5388 input_from_pipe
= save_input_from_pipe
;
5389 suffix_subst
= save_suffix_subst
;
5394 /* Handle a spec function call of the form:
5398 ARGS is processed as a spec in a separate context and split into an
5399 argument vector in the normal fashion. The function returns a string
5400 containing a spec which we then process in the caller's context, or
5401 NULL if no processing is required. */
5404 handle_spec_function (const char *p
)
5407 const char *endp
, *funcval
;
5410 processing_spec_function
++;
5412 /* Get the function name. */
5413 for (endp
= p
; *endp
!= '\0'; endp
++)
5415 if (*endp
== '(') /* ) */
5417 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5418 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5419 fatal ("malformed spec function name");
5421 if (*endp
!= '(') /* ) */
5422 fatal ("no arguments for spec function");
5423 func
= save_string (p
, endp
- p
);
5426 /* Get the arguments. */
5427 for (count
= 0; *endp
!= '\0'; endp
++)
5436 else if (*endp
== '(') /* ) */
5441 fatal ("malformed spec function arguments");
5442 args
= save_string (p
, endp
- p
);
5445 /* p now points to just past the end of the spec function expression. */
5447 funcval
= eval_spec_function (func
, args
);
5448 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5454 processing_spec_function
--;
5459 /* Inline subroutine of handle_braces. Returns true if the current
5460 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5462 input_suffix_matches (const char *atom
, const char *end_atom
)
5464 return (input_suffix
5465 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5466 && input_suffix
[end_atom
- atom
] == '\0');
5469 /* Inline subroutine of handle_braces. Returns true if a switch
5470 matching the atom bracketed by ATOM and END_ATOM appeared on the
5473 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5476 int len
= end_atom
- atom
;
5477 int plen
= starred
? len
: -1;
5479 for (i
= 0; i
< n_switches
; i
++)
5480 if (!strncmp (switches
[i
].part1
, atom
, len
)
5481 && (starred
|| switches
[i
].part1
[len
] == '\0')
5482 && check_live_switch (i
, plen
))
5488 /* Inline subroutine of handle_braces. Mark all of the switches which
5489 match ATOM (extends to END_ATOM; STARRED indicates whether there
5490 was a star after the atom) for later processing. */
5492 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5495 int len
= end_atom
- atom
;
5496 int plen
= starred
? len
: -1;
5498 for (i
= 0; i
< n_switches
; i
++)
5499 if (!strncmp (switches
[i
].part1
, atom
, len
)
5500 && (starred
|| switches
[i
].part1
[len
] == '\0')
5501 && check_live_switch (i
, plen
))
5502 switches
[i
].ordering
= 1;
5505 /* Inline subroutine of handle_braces. Process all the currently
5506 marked switches through give_switch, and clear the marks. */
5508 process_marked_switches (void)
5512 for (i
= 0; i
< n_switches
; i
++)
5513 if (switches
[i
].ordering
== 1)
5515 switches
[i
].ordering
= 0;
5520 /* Handle a %{ ... } construct. P points just inside the leading {.
5521 Returns a pointer one past the end of the brace block, or 0
5522 if we call do_spec_1 and that returns -1. */
5525 handle_braces (const char *p
)
5527 const char *atom
, *end_atom
;
5528 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5535 bool a_must_be_last
= false;
5536 bool ordered_set
= false;
5537 bool disjunct_set
= false;
5538 bool disj_matched
= false;
5539 bool disj_starred
= true;
5540 bool n_way_choice
= false;
5541 bool n_way_matched
= false;
5543 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5550 /* Scan one "atom" (S in the description above of %{}, possibly
5551 with !, ., or * modifiers). */
5552 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5556 p
++, a_is_negated
= true;
5560 p
++, a_is_suffix
= true;
5563 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5564 || *p
== ',' || *p
== '.' || *p
== '@')
5569 p
++, a_is_starred
= 1;
5572 if (*p
== '&' || *p
== '}')
5574 /* Substitute the switch(es) indicated by the current atom. */
5576 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5577 || atom
== end_atom
)
5580 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5583 process_marked_switches ();
5585 else if (*p
== '|' || *p
== ':')
5587 /* Substitute some text if the current atom appears as a switch
5589 disjunct_set
= true;
5593 if (atom
== end_atom
)
5595 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5596 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5599 /* An empty term may appear as the last choice of an
5600 N-way choice set; it means "otherwise". */
5601 a_must_be_last
= true;
5602 disj_matched
= !n_way_matched
;
5603 disj_starred
= false;
5607 if (a_is_suffix
&& a_is_starred
)
5611 disj_starred
= false;
5613 /* Don't bother testing this atom if we already have a
5615 if (!disj_matched
&& !n_way_matched
)
5618 a_matched
= input_suffix_matches (atom
, end_atom
);
5620 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5622 if (a_matched
!= a_is_negated
)
5624 disj_matched
= true;
5626 d_end_atom
= end_atom
;
5633 /* Found the body, that is, the text to substitute if the
5634 current disjunction matches. */
5635 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5636 disj_matched
&& !n_way_matched
);
5640 /* If we have an N-way choice, reset state for the next
5644 n_way_choice
= true;
5645 n_way_matched
|= disj_matched
;
5646 disj_matched
= false;
5647 disj_starred
= true;
5648 d_atom
= d_end_atom
= NULL
;
5655 while (*p
++ != '}');
5662 /* Subroutine of handle_braces. Scan and process a brace substitution body
5663 (X in the description of %{} syntax). P points one past the colon;
5664 ATOM and END_ATOM bracket the first atom which was found to be true
5665 (present) in the current disjunction; STARRED indicates whether all
5666 the atoms in the current disjunction were starred (for syntax validation);
5667 MATCHED indicates whether the disjunction matched or not, and therefore
5668 whether or not the body is to be processed through do_spec_1 or just
5669 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5673 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5674 int starred
, int matched
)
5676 const char *body
, *end_body
;
5677 unsigned int nesting_level
;
5678 bool have_subst
= false;
5680 /* Locate the closing } or ;, honoring nested braces.
5681 Trim trailing whitespace. */
5690 if (!--nesting_level
)
5693 else if (*p
== ';' && nesting_level
== 1)
5695 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5697 else if (*p
== '\0')
5703 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5706 if (have_subst
&& !starred
)
5711 /* Copy the substitution body to permanent storage and execute it.
5712 If have_subst is false, this is a simple matter of running the
5713 body through do_spec_1... */
5714 char *string
= save_string (body
, end_body
- body
);
5717 if (do_spec_1 (string
, 0, NULL
) < 0)
5722 /* ... but if have_subst is true, we have to process the
5723 body once for each matching switch, with %* set to the
5724 variant part of the switch. */
5725 unsigned int hard_match_len
= end_atom
- atom
;
5728 for (i
= 0; i
< n_switches
; i
++)
5729 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5730 && check_live_switch (i
, hard_match_len
))
5732 if (do_spec_1 (string
, 0,
5733 &switches
[i
].part1
[hard_match_len
]) < 0)
5735 /* Pass any arguments this switch has. */
5737 suffix_subst
= NULL
;
5745 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5746 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5747 spec, or -1 if either exact match or %* is used.
5749 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5750 whose value does not begin with "no-" is obsoleted by the same value
5751 with the "no-", similarly for a switch with the "no-" prefix. */
5754 check_live_switch (int switchnum
, int prefix_length
)
5756 const char *name
= switches
[switchnum
].part1
;
5759 /* In the common case of {<at-most-one-letter>*}, a negating
5760 switch would always match, so ignore that case. We will just
5761 send the conflicting switches to the compiler phase. */
5762 if (prefix_length
>= 0 && prefix_length
<= 1)
5765 /* If we already processed this switch and determined if it was
5766 live or not, return our past determination. */
5767 if (switches
[switchnum
].live_cond
!= 0)
5768 return switches
[switchnum
].live_cond
> 0;
5770 /* Now search for duplicate in a manner that depends on the name. */
5774 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5775 if (switches
[i
].part1
[0] == 'O')
5777 switches
[switchnum
].validated
= 1;
5778 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5783 case 'W': case 'f': case 'm':
5784 if (! strncmp (name
+ 1, "no-", 3))
5786 /* We have Xno-YYY, search for XYYY. */
5787 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5788 if (switches
[i
].part1
[0] == name
[0]
5789 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5791 switches
[switchnum
].validated
= 1;
5792 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5798 /* We have XYYY, search for Xno-YYY. */
5799 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5800 if (switches
[i
].part1
[0] == name
[0]
5801 && switches
[i
].part1
[1] == 'n'
5802 && switches
[i
].part1
[2] == 'o'
5803 && switches
[i
].part1
[3] == '-'
5804 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5806 switches
[switchnum
].validated
= 1;
5807 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5814 /* Otherwise the switch is live. */
5815 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5819 /* Pass a switch to the current accumulating command
5820 in the same form that we received it.
5821 SWITCHNUM identifies the switch; it is an index into
5822 the vector of switches gcc received, which is `switches'.
5823 This cannot fail since it never finishes a command line.
5825 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5828 give_switch (int switchnum
, int omit_first_word
)
5830 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5833 if (!omit_first_word
)
5835 do_spec_1 ("-", 0, NULL
);
5836 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5839 if (switches
[switchnum
].args
!= 0)
5842 for (p
= switches
[switchnum
].args
; *p
; p
++)
5844 const char *arg
= *p
;
5846 do_spec_1 (" ", 0, NULL
);
5849 unsigned length
= strlen (arg
);
5852 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5853 if (arg
[length
] == '.')
5855 ((char *)arg
)[length
] = 0;
5859 do_spec_1 (arg
, 1, NULL
);
5861 ((char *)arg
)[length
] = '.';
5862 do_spec_1 (suffix_subst
, 1, NULL
);
5865 do_spec_1 (arg
, 1, NULL
);
5869 do_spec_1 (" ", 0, NULL
);
5870 switches
[switchnum
].validated
= 1;
5873 /* Search for a file named NAME trying various prefixes including the
5874 user's -B prefix and some standard ones.
5875 Return the absolute file name found. If nothing is found, return NAME. */
5878 find_file (const char *name
)
5882 /* Try multilib_dir if it is defined. */
5883 if (multilib_os_dir
!= NULL
)
5885 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5887 /* If we don't find it in the multi library dir, then fall
5888 through and look for it in the normal places. */
5889 if (newname
!= NULL
)
5893 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5894 return newname
? newname
: name
;
5897 /* Determine whether a directory exists. If LINKER, return 0 for
5898 certain fixed names not needed by the linker. If not LINKER, it is
5899 only important to return 0 if the host machine has a small ARG_MAX
5903 is_directory (const char *path1
, const char *path2
, int linker
)
5905 int len1
= strlen (path1
);
5906 int len2
= strlen (path2
);
5907 char *path
= alloca (3 + len1
+ len2
);
5911 #ifndef SMALL_ARG_MAX
5916 /* Construct the path from the two parts. Ensure the string ends with "/.".
5917 The resulting path will be a directory even if the given path is a
5919 memcpy (path
, path1
, len1
);
5920 memcpy (path
+ len1
, path2
, len2
);
5921 cp
= path
+ len1
+ len2
;
5922 if (!IS_DIR_SEPARATOR (cp
[-1]))
5923 *cp
++ = DIR_SEPARATOR
;
5927 /* Exclude directories that the linker is known to search. */
5930 && strcmp (path
, concat (dir_separator_str
, "lib",
5931 dir_separator_str
, ".", NULL
)) == 0)
5933 && strcmp (path
, concat (dir_separator_str
, "usr",
5934 dir_separator_str
, "lib",
5935 dir_separator_str
, ".", NULL
)) == 0)))
5938 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5941 /* Set up the various global variables to indicate that we're processing
5942 the input file named FILENAME. */
5945 set_input (const char *filename
)
5949 input_filename
= filename
;
5950 input_filename_length
= strlen (input_filename
);
5952 input_basename
= input_filename
;
5953 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5954 /* Skip drive name so 'x:foo' is handled properly. */
5955 if (input_basename
[1] == ':')
5956 input_basename
+= 2;
5958 for (p
= input_basename
; *p
; p
++)
5959 if (IS_DIR_SEPARATOR (*p
))
5960 input_basename
= p
+ 1;
5962 /* Find a suffix starting with the last period,
5963 and set basename_length to exclude that suffix. */
5964 basename_length
= strlen (input_basename
);
5965 suffixed_basename_length
= basename_length
;
5966 p
= input_basename
+ basename_length
;
5967 while (p
!= input_basename
&& *p
!= '.')
5969 if (*p
== '.' && p
!= input_basename
)
5971 basename_length
= p
- input_basename
;
5972 input_suffix
= p
+ 1;
5977 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5978 we will need to do a stat on the input_filename. The
5979 INPUT_STAT_SET signals that the stat is needed. */
5983 /* On fatal signals, delete all the temporary files. */
5986 fatal_error (int signum
)
5988 signal (signum
, SIG_DFL
);
5989 delete_failure_queue ();
5990 delete_temp_files ();
5991 /* Get the same signal again, this time not handled,
5992 so its normal effect occurs. */
5993 kill (getpid (), signum
);
5996 extern int main (int, const char **);
5999 main (int argc
, const char **argv
)
6003 int linker_was_run
= 0;
6004 int lang_n_infiles
= 0;
6005 int num_linker_inputs
= 0;
6006 char *explicit_link_files
;
6009 struct user_specs
*uptr
;
6011 p
= argv
[0] + strlen (argv
[0]);
6012 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6016 xmalloc_set_program_name (programname
);
6018 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6019 /* Perform host dependent initialization when needed. */
6020 GCC_DRIVER_HOST_INITIALIZATION
;
6023 gcc_init_libintl ();
6025 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6026 signal (SIGINT
, fatal_error
);
6028 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6029 signal (SIGHUP
, fatal_error
);
6031 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6032 signal (SIGTERM
, fatal_error
);
6034 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6035 signal (SIGPIPE
, fatal_error
);
6038 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6039 receive the signal. A different setting is inheritable */
6040 signal (SIGCHLD
, SIG_DFL
);
6043 /* Allocate the argument vector. */
6046 obstack_init (&obstack
);
6048 /* Build multilib_select, et. al from the separate lines that make up each
6049 multilib selection. */
6051 const char *const *q
= multilib_raw
;
6054 obstack_init (&multilib_obstack
);
6055 while ((p
= *q
++) != (char *) 0)
6056 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6058 obstack_1grow (&multilib_obstack
, 0);
6059 multilib_select
= obstack_finish (&multilib_obstack
);
6061 q
= multilib_matches_raw
;
6062 while ((p
= *q
++) != (char *) 0)
6063 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6065 obstack_1grow (&multilib_obstack
, 0);
6066 multilib_matches
= obstack_finish (&multilib_obstack
);
6068 q
= multilib_exclusions_raw
;
6069 while ((p
= *q
++) != (char *) 0)
6070 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6072 obstack_1grow (&multilib_obstack
, 0);
6073 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6076 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6079 obstack_1grow (&multilib_obstack
, ' ');
6080 obstack_grow (&multilib_obstack
,
6081 multilib_defaults_raw
[i
],
6082 strlen (multilib_defaults_raw
[i
]));
6086 obstack_1grow (&multilib_obstack
, 0);
6087 multilib_defaults
= obstack_finish (&multilib_obstack
);
6090 /* Set up to remember the pathname of gcc and any options
6091 needed for collect. We use argv[0] instead of programname because
6092 we need the complete pathname. */
6093 obstack_init (&collect_obstack
);
6094 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6095 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6096 putenv (obstack_finish (&collect_obstack
));
6098 #ifdef INIT_ENVIRONMENT
6099 /* Set up any other necessary machine specific environment variables. */
6100 putenv (INIT_ENVIRONMENT
);
6103 /* Make a table of what switches there are (switches, n_switches).
6104 Make a table of specified input files (infiles, n_infiles).
6105 Decode switches that are handled locally. */
6107 process_command (argc
, argv
);
6109 /* Initialize the vector of specs to just the default.
6110 This means one element containing 0s, as a terminator. */
6112 compilers
= xmalloc (sizeof default_compilers
);
6113 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6114 n_compilers
= n_default_compilers
;
6116 /* Read specs from a file if there is one. */
6118 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6119 spec_version
, dir_separator_str
, NULL
);
6120 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6122 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6123 /* Read the specs file unless it is a default one. */
6124 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6125 read_specs (specs_file
, TRUE
);
6129 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6130 for any override of as, ld and libraries. */
6131 specs_file
= alloca (strlen (standard_exec_prefix
)
6132 + strlen (just_machine_suffix
) + sizeof ("specs"));
6134 strcpy (specs_file
, standard_exec_prefix
);
6135 strcat (specs_file
, just_machine_suffix
);
6136 strcat (specs_file
, "specs");
6137 if (access (specs_file
, R_OK
) == 0)
6138 read_specs (specs_file
, TRUE
);
6140 /* Process any configure-time defaults specified for the command line
6141 options, via OPTION_DEFAULT_SPECS. */
6142 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6143 do_option_spec (option_default_specs
[i
].name
,
6144 option_default_specs
[i
].spec
);
6146 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6147 of the command line. */
6149 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6150 do_self_spec (driver_self_specs
[i
]);
6152 /* If not cross-compiling, look for executables in the standard
6154 if (*cross_compile
== '0')
6156 if (*md_exec_prefix
)
6158 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6159 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6163 /* Process sysroot_suffix_spec. */
6164 if (*sysroot_suffix_spec
!= 0
6165 && do_spec_2 (sysroot_suffix_spec
) == 0)
6167 if (argbuf_index
> 1)
6168 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6169 else if (argbuf_index
== 1)
6170 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6173 /* Process sysroot_hdrs_suffix_spec. */
6174 if (*sysroot_hdrs_suffix_spec
!= 0
6175 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6177 if (argbuf_index
> 1)
6178 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6179 else if (argbuf_index
== 1)
6180 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6183 /* Look for startfiles in the standard places. */
6184 if (*startfile_prefix_spec
!= 0
6185 && do_spec_2 (startfile_prefix_spec
) == 0
6186 && do_spec_1 (" ", 0, NULL
) == 0)
6189 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6190 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6191 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6193 /* We should eventually get rid of all these and stick to
6194 startfile_prefix_spec exclusively. */
6195 else if (*cross_compile
== '0' || target_system_root
)
6197 if (*md_exec_prefix
)
6198 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6199 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6201 if (*md_startfile_prefix
)
6202 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6203 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6205 if (*md_startfile_prefix_1
)
6206 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6207 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6209 /* If standard_startfile_prefix is relative, base it on
6210 standard_exec_prefix. This lets us move the installed tree
6211 as a unit. If GCC_EXEC_PREFIX is defined, base
6212 standard_startfile_prefix on that as well.
6214 If the prefix is relative, only search it for native compilers;
6215 otherwise we will search a directory containing host libraries. */
6216 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6217 add_sysrooted_prefix (&startfile_prefixes
,
6218 standard_startfile_prefix
, "BINUTILS",
6219 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6220 else if (*cross_compile
== '0')
6222 if (gcc_exec_prefix
)
6223 add_prefix (&startfile_prefixes
,
6224 concat (gcc_exec_prefix
, machine_suffix
,
6225 standard_startfile_prefix
, NULL
),
6226 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6227 add_prefix (&startfile_prefixes
,
6228 concat (standard_exec_prefix
,
6230 standard_startfile_prefix
, NULL
),
6231 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6234 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6235 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6236 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6237 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6238 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6239 add_prefix (&startfile_prefixes
, "./", NULL
,
6240 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6244 /* Process any user specified specs in the order given on the command
6246 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6248 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6250 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6253 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6254 if (gcc_exec_prefix
)
6255 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6256 spec_version
, dir_separator_str
, NULL
);
6258 /* Now we have the specs.
6259 Set the `valid' bits for switches that match anything in any spec. */
6261 validate_all_switches ();
6263 /* Now that we have the switches and the specs, set
6264 the subdirectory based on the options. */
6265 set_multilib_dir ();
6267 /* Warn about any switches that no pass was interested in. */
6269 for (i
= 0; (int) i
< n_switches
; i
++)
6270 if (! switches
[i
].validated
)
6271 error ("unrecognized option `-%s'", switches
[i
].part1
);
6273 /* Obey some of the options. */
6275 if (print_search_dirs
)
6277 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6278 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6279 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6283 if (print_file_name
)
6285 printf ("%s\n", find_file (print_file_name
));
6289 if (print_prog_name
)
6291 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6292 printf ("%s\n", (newname
? newname
: print_prog_name
));
6296 if (print_multi_lib
)
6298 print_multilib_info ();
6302 if (print_multi_directory
)
6304 if (multilib_dir
== NULL
)
6307 printf ("%s\n", multilib_dir
);
6311 if (print_multi_os_directory
)
6313 if (multilib_os_dir
== NULL
)
6316 printf ("%s\n", multilib_os_dir
);
6320 if (target_help_flag
)
6322 /* Print if any target specific options. */
6324 /* We do not exit here. Instead we have created a fake input file
6325 called 'target-dummy' which needs to be compiled, and we pass this
6326 on to the various sub-processes, along with the --target-help
6330 if (print_help_list
)
6336 printf (_("\nFor bug reporting instructions, please see:\n"));
6337 printf ("%s.\n", bug_report_url
);
6342 /* We do not exit here. Instead we have created a fake input file
6343 called 'help-dummy' which needs to be compiled, and we pass this
6344 on the various sub-processes, along with the --help switch. */
6352 notice ("Configured with: %s\n", configuration_arguments
);
6354 #ifdef THREAD_MODEL_SPEC
6355 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6356 but there's no point in doing all this processing just to get
6357 thread_model back. */
6358 obstack_init (&obstack
);
6359 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6360 obstack_1grow (&obstack
, '\0');
6361 thrmod
= obstack_finish (&obstack
);
6363 thrmod
= thread_model
;
6366 notice ("Thread model: %s\n", thrmod
);
6368 /* compiler_version is truncated at the first space when initialized
6369 from version string, so truncate version_string at the first space
6370 before comparing. */
6371 for (n
= 0; version_string
[n
]; n
++)
6372 if (version_string
[n
] == ' ')
6375 if (! strncmp (version_string
, compiler_version
, n
)
6376 && compiler_version
[n
] == 0)
6377 notice ("gcc version %s\n", version_string
);
6379 notice ("gcc driver version %s executing gcc version %s\n",
6380 version_string
, compiler_version
);
6386 if (n_infiles
== added_libraries
)
6387 fatal ("no input files");
6389 /* Make a place to record the compiler output file names
6390 that correspond to the input files. */
6393 i
+= lang_specific_extra_outfiles
;
6394 outfiles
= xcalloc (i
, sizeof (char *));
6396 /* Record which files were specified explicitly as link input. */
6398 explicit_link_files
= xcalloc (1, n_infiles
);
6401 combine_inputs
= true;
6403 combine_inputs
= false;
6405 for (i
= 0; (int) i
< n_infiles
; i
++)
6407 const char *name
= infiles
[i
].name
;
6408 struct compiler
*compiler
= lookup_compiler (name
,
6410 infiles
[i
].language
);
6412 if (compiler
&& !(compiler
->combinable
))
6413 combine_inputs
= false;
6415 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6416 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6417 infiles
[i
].incompiler
= compiler
;
6421 input_file_compiler
= compiler
;
6422 infiles
[i
].incompiler
= compiler
;
6426 /* Since there is no compiler for this input file, assume it is a
6428 explicit_link_files
[i
] = 1;
6429 infiles
[i
].incompiler
= NULL
;
6431 infiles
[i
].compiled
= false;
6432 infiles
[i
].preprocessed
= false;
6435 if (combine_flag
&& save_temps_flag
)
6437 bool save_combine_inputs
= combine_inputs
;
6438 /* Must do a separate pre-processing pass for C & Objective-C files, to
6439 obtain individual .i files. */
6441 combine_inputs
= false;
6442 for (i
= 0; (int) i
< n_infiles
; i
++)
6444 int this_file_error
= 0;
6446 input_file_number
= i
;
6447 set_input (infiles
[i
].name
);
6448 if (infiles
[i
].incompiler
6449 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6450 input_file_compiler
= infiles
[i
].incompiler
;
6454 if (input_file_compiler
)
6456 if (input_file_compiler
->spec
[0] == '#')
6458 error ("%s: %s compiler not installed on this system",
6459 input_filename
, &input_file_compiler
->spec
[1]);
6460 this_file_error
= 1;
6464 value
= do_spec (input_file_compiler
->spec
);
6465 infiles
[i
].preprocessed
= true;
6466 if (have_o_argbuf_index
)
6467 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6470 infiles
[i
].incompiler
= lookup_compiler (infiles
[i
].name
,
6471 strlen (infiles
[i
].name
),
6472 infiles
[i
].language
);
6475 this_file_error
= 1;
6479 if (this_file_error
)
6481 delete_failure_queue ();
6485 clear_failure_queue ();
6487 combine_inputs
= save_combine_inputs
;
6490 for (i
= 0; (int) i
< n_infiles
; i
++)
6492 int this_file_error
= 0;
6494 /* Tell do_spec what to substitute for %i. */
6496 input_file_number
= i
;
6497 set_input (infiles
[i
].name
);
6499 if (infiles
[i
].compiled
)
6502 /* Use the same thing in %o, unless cp->spec says otherwise. */
6504 outfiles
[i
] = input_filename
;
6506 /* Figure out which compiler from the file's suffix. */
6508 if (! combine_inputs
)
6510 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6511 infiles
[i
].language
);
6513 input_file_compiler
= infiles
[i
].incompiler
;
6515 if (input_file_compiler
)
6517 /* Ok, we found an applicable compiler. Run its spec. */
6519 if (input_file_compiler
->spec
[0] == '#')
6521 error ("%s: %s compiler not installed on this system",
6522 input_filename
, &input_file_compiler
->spec
[1]);
6523 this_file_error
= 1;
6527 value
= do_spec (input_file_compiler
->spec
);
6528 infiles
[i
].compiled
= true;
6530 this_file_error
= 1;
6534 /* If this file's name does not contain a recognized suffix,
6535 record it as explicit linker input. */
6538 explicit_link_files
[i
] = 1;
6540 /* Clear the delete-on-failure queue, deleting the files in it
6541 if this compilation failed. */
6543 if (this_file_error
)
6545 delete_failure_queue ();
6549 /* If this compilation succeeded, don't delete those files later. */
6550 clear_failure_queue ();
6553 /* Reset the output file name to the first input file name, for use
6554 with %b in LINK_SPEC on a target that prefers not to emit a.out
6557 set_input (infiles
[0].name
);
6559 if (error_count
== 0)
6561 /* Make sure INPUT_FILE_NUMBER points to first available open
6563 input_file_number
= n_infiles
;
6564 if (lang_specific_pre_link ())
6568 /* Determine if there are any linker input files. */
6569 num_linker_inputs
= 0;
6570 for (i
= 0; (int) i
< n_infiles
; i
++)
6571 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6572 num_linker_inputs
++;
6574 /* Run ld to link all the compiler output files. */
6576 if (num_linker_inputs
> 0 && error_count
== 0)
6578 int tmp
= execution_count
;
6580 /* We'll use ld if we can't find collect2. */
6581 if (! strcmp (linker_name_spec
, "collect2"))
6583 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6585 linker_name_spec
= "ld";
6587 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6589 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6590 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6592 value
= do_spec (link_command_spec
);
6595 linker_was_run
= (tmp
!= execution_count
);
6598 /* If options said don't run linker,
6599 complain about input files to be given to the linker. */
6601 if (! linker_was_run
&& error_count
== 0)
6602 for (i
= 0; (int) i
< n_infiles
; i
++)
6603 if (explicit_link_files
[i
])
6604 error ("%s: linker input file unused because linking not done",
6607 /* Delete some or all of the temporary files we made. */
6610 delete_failure_queue ();
6611 delete_temp_files ();
6613 if (print_help_list
)
6615 printf (("\nFor bug reporting instructions, please see:\n"));
6616 printf ("%s\n", bug_report_url
);
6619 return (signal_count
!= 0 ? 2
6620 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6624 /* Find the proper compilation spec for the file name NAME,
6625 whose length is LENGTH. LANGUAGE is the specified language,
6626 or 0 if this file is to be passed to the linker. */
6628 static struct compiler
*
6629 lookup_compiler (const char *name
, size_t length
, const char *language
)
6631 struct compiler
*cp
;
6633 /* If this was specified by the user to be a linker input, indicate that. */
6634 if (language
!= 0 && language
[0] == '*')
6637 /* Otherwise, look for the language, if one is spec'd. */
6640 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6641 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6644 error ("language %s not recognized", language
);
6648 /* Look for a suffix. */
6649 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6651 if (/* The suffix `-' matches only the file name `-'. */
6652 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6653 || (strlen (cp
->suffix
) < length
6654 /* See if the suffix matches the end of NAME. */
6655 && !strcmp (cp
->suffix
,
6656 name
+ length
- strlen (cp
->suffix
))
6661 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6662 /* Look again, but case-insensitively this time. */
6664 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6666 if (/* The suffix `-' matches only the file name `-'. */
6667 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6668 || (strlen (cp
->suffix
) < length
6669 /* See if the suffix matches the end of NAME. */
6670 && ((!strcmp (cp
->suffix
,
6671 name
+ length
- strlen (cp
->suffix
))
6672 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6673 && !strcasecmp (cp
->suffix
,
6674 name
+ length
- strlen (cp
->suffix
)))
6680 if (cp
>= compilers
)
6682 if (cp
->spec
[0] != '@')
6683 /* A non-alias entry: return it. */
6686 /* An alias entry maps a suffix to a language.
6687 Search for the language; pass 0 for NAME and LENGTH
6688 to avoid infinite recursion if language not found. */
6689 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6695 save_string (const char *s
, int len
)
6697 char *result
= xmalloc (len
+ 1);
6699 memcpy (result
, s
, len
);
6705 pfatal_with_name (const char *name
)
6707 perror_with_name (name
);
6708 delete_temp_files ();
6713 perror_with_name (const char *name
)
6715 error ("%s: %s", name
, xstrerror (errno
));
6719 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6723 int save_errno
= errno
;
6725 /* Space for trailing '\0' is in %s. */
6726 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6727 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6733 pfatal_with_name (errmsg_fmt
);
6736 /* Output an error message and exit. */
6741 fatal ("internal gcc abort");
6744 /* Output an error message and exit. */
6747 fatal (const char *msgid
, ...)
6751 va_start (ap
, msgid
);
6753 fprintf (stderr
, "%s: ", programname
);
6754 vfprintf (stderr
, _(msgid
), ap
);
6756 fprintf (stderr
, "\n");
6757 delete_temp_files ();
6762 error (const char *msgid
, ...)
6766 va_start (ap
, msgid
);
6767 fprintf (stderr
, "%s: ", programname
);
6768 vfprintf (stderr
, _(msgid
), ap
);
6771 fprintf (stderr
, "\n");
6775 notice (const char *msgid
, ...)
6779 va_start (ap
, msgid
);
6780 vfprintf (stderr
, _(msgid
), ap
);
6785 validate_switches_from_spec (const char *spec
)
6787 const char *p
= spec
;
6790 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6791 /* We have a switch spec. */
6792 p
= validate_switches (p
+ 1);
6796 validate_all_switches (void)
6798 struct compiler
*comp
;
6799 struct spec_list
*spec
;
6801 for (comp
= compilers
; comp
->spec
; comp
++)
6802 validate_switches_from_spec (comp
->spec
);
6804 /* Look through the linked list of specs read from the specs file. */
6805 for (spec
= specs
; spec
; spec
= spec
->next
)
6806 validate_switches_from_spec (*spec
->ptr_spec
);
6808 validate_switches_from_spec (link_command_spec
);
6811 /* Look at the switch-name that comes after START
6812 and mark as valid all supplied switches that match it. */
6815 validate_switches (const char *start
)
6817 const char *p
= start
;
6821 bool suffix
= false;
6822 bool starred
= false;
6824 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6837 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6838 || *p
== ',' || *p
== '.' || *p
== '@')
6843 starred
= true, p
++;
6849 /* Mark all matching switches as valid. */
6850 for (i
= 0; i
< n_switches
; i
++)
6851 if (!strncmp (switches
[i
].part1
, atom
, len
)
6852 && (starred
|| switches
[i
].part1
[len
] == 0))
6853 switches
[i
].validated
= 1;
6857 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6860 if (*p
&& p
[-1] == ':')
6862 while (*p
&& *p
!= ';' && *p
!= '}')
6867 if (*p
== '{' || *p
== '<')
6868 p
= validate_switches (p
+1);
6869 else if (p
[0] == 'W' && p
[1] == '{')
6870 p
= validate_switches (p
+2);
6877 if (*p
&& p
[-1] == ';')
6891 static struct mdswitchstr
*mdswitches
;
6892 static int n_mdswitches
;
6894 /* Check whether a particular argument was used. The first time we
6895 canonicalize the switches to keep only the ones we care about. */
6898 used_arg (const char *p
, int len
)
6903 const char *replace
;
6908 static struct mswitchstr
*mswitches
;
6909 static int n_mswitches
;
6914 struct mswitchstr
*matches
;
6918 /* Break multilib_matches into the component strings of string
6919 and replacement string. */
6920 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6924 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6926 q
= multilib_matches
;
6936 matches
[i
].len
= q
- matches
[i
].str
;
6938 matches
[i
].replace
= ++q
;
6939 while (*q
!= ';' && *q
!= '\0')
6945 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6951 /* Now build a list of the replacement string for switches that we care
6952 about. Make sure we allocate at least one entry. This prevents
6953 xmalloc from calling fatal, and prevents us from re-executing this
6956 = xmalloc (sizeof (struct mswitchstr
)
6957 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6958 for (i
= 0; i
< n_switches
; i
++)
6959 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6961 int xlen
= strlen (switches
[i
].part1
);
6962 for (j
= 0; j
< cnt
; j
++)
6963 if (xlen
== matches
[j
].len
6964 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6966 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6967 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6968 mswitches
[n_mswitches
].replace
= (char *) 0;
6969 mswitches
[n_mswitches
].rep_len
= 0;
6975 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6976 on the command line nor any options mutually incompatible with
6978 for (i
= 0; i
< n_mdswitches
; i
++)
6982 for (q
= multilib_options
; *q
!= '\0'; q
++)
6988 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6989 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6991 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6998 if (*q
!= ' ' && *q
!= '\0')
7000 while (*r
!= ' ' && *r
!= '\0')
7003 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7006 if (used_arg (r
, q
- r
))
7011 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7012 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7013 mswitches
[n_mswitches
].replace
= (char *) 0;
7014 mswitches
[n_mswitches
].rep_len
= 0;
7027 for (i
= 0; i
< n_mswitches
; i
++)
7028 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7035 default_arg (const char *p
, int len
)
7039 for (i
= 0; i
< n_mdswitches
; i
++)
7040 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7046 /* Work out the subdirectory to use based on the options. The format of
7047 multilib_select is a list of elements. Each element is a subdirectory
7048 name followed by a list of options followed by a semicolon. The format
7049 of multilib_exclusions is the same, but without the preceding
7050 directory. First gcc will check the exclusions, if none of the options
7051 beginning with an exclamation point are present, and all of the other
7052 options are present, then we will ignore this completely. Passing
7053 that, gcc will consider each multilib_select in turn using the same
7054 rules for matching the options. If a match is found, that subdirectory
7058 set_multilib_dir (void)
7061 unsigned int this_path_len
;
7062 const char *this_path
, *this_arg
;
7063 const char *start
, *end
;
7065 int ok
, ndfltok
, first
;
7068 start
= multilib_defaults
;
7069 while (*start
== ' ' || *start
== '\t')
7071 while (*start
!= '\0')
7074 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7076 while (*start
== ' ' || *start
== '\t')
7084 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7085 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7087 while (*start
== ' ' || *start
== '\t')
7093 for (end
= start
+ 1;
7094 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7097 obstack_grow (&multilib_obstack
, start
, end
- start
);
7098 obstack_1grow (&multilib_obstack
, 0);
7099 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7100 mdswitches
[i
++].len
= end
- start
;
7107 p
= multilib_exclusions
;
7110 /* Ignore newlines. */
7117 /* Check the arguments. */
7131 while (*p
!= ' ' && *p
!= ';')
7138 if (*this_arg
!= '!')
7146 ok
= used_arg (this_arg
, p
- this_arg
);
7161 p
= multilib_select
;
7164 /* Ignore newlines. */
7171 /* Get the initial path. */
7179 this_path_len
= p
- this_path
;
7181 /* Check the arguments. */
7197 while (*p
!= ' ' && *p
!= ';')
7204 if (*this_arg
!= '!')
7212 /* If this is a default argument, we can just ignore it.
7213 This is true even if this_arg begins with '!'. Beginning
7214 with '!' does not mean that this argument is necessarily
7215 inappropriate for this library: it merely means that
7216 there is a more specific library which uses this
7217 argument. If this argument is a default, we need not
7218 consider that more specific library. */
7219 ok
= used_arg (this_arg
, p
- this_arg
);
7226 if (default_arg (this_arg
, p
- this_arg
))
7235 if (this_path_len
!= 1
7236 || this_path
[0] != '.')
7238 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7241 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7242 new_multilib_dir
[this_path_len
] = '\0';
7243 q
= strchr (new_multilib_dir
, ':');
7246 multilib_dir
= new_multilib_dir
;
7253 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7255 while (q
< end
&& *q
!= ':')
7259 char *new_multilib_os_dir
= xmalloc (end
- q
);
7260 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7261 new_multilib_os_dir
[end
- q
- 1] = '\0';
7262 multilib_os_dir
= new_multilib_os_dir
;
7270 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7271 && strcmp (multilib_os_dir
, ".") == 0)
7273 free ((char *) multilib_os_dir
);
7274 multilib_os_dir
= NULL
;
7276 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7277 multilib_os_dir
= multilib_dir
;
7280 /* Print out the multiple library subdirectory selection
7281 information. This prints out a series of lines. Each line looks
7282 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7283 required. Only the desired options are printed out, the negative
7284 matches. The options are print without a leading dash. There are
7285 no spaces to make it easy to use the information in the shell.
7286 Each subdirectory is printed only once. This assumes the ordering
7287 generated by the genmultilib script. Also, we leave out ones that match
7291 print_multilib_info (void)
7293 const char *p
= multilib_select
;
7294 const char *last_path
= 0, *this_path
;
7296 unsigned int last_path_len
= 0;
7301 /* Ignore newlines. */
7308 /* Get the initial path. */
7317 /* When --disable-multilib was used but target defines
7318 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7319 to find multilib_os_dir, so skip them from output. */
7320 if (this_path
[0] == '.' && this_path
[1] == ':')
7323 /* Check for matches with the multilib_exclusions. We don't bother
7324 with the '!' in either list. If any of the exclusion rules match
7325 all of its options with the select rule, we skip it. */
7327 const char *e
= multilib_exclusions
;
7328 const char *this_arg
;
7333 /* Ignore newlines. */
7340 /* Check the arguments. */
7357 while (*e
!= ' ' && *e
!= ';')
7368 int len
= e
- this_arg
;
7375 while (*q
!= ' ' && *q
!= ';')
7382 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7383 default_arg (this_arg
, e
- this_arg
))
7413 /* If this is a duplicate, skip it. */
7414 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7415 && ! strncmp (last_path
, this_path
, last_path_len
));
7417 last_path
= this_path
;
7418 last_path_len
= p
- this_path
;
7421 /* If this directory requires any default arguments, we can skip
7422 it. We will already have printed a directory identical to
7423 this one which does not require that default argument. */
7441 while (*q
!= ' ' && *q
!= ';')
7449 && default_arg (arg
, q
- arg
))
7464 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7483 use_arg
= *p
!= '!';
7488 while (*p
!= ' ' && *p
!= ';')
7503 /* If there are extra options, print them now. */
7504 if (multilib_extra
&& *multilib_extra
)
7506 int print_at
= TRUE
;
7509 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7530 /* if-exists built-in spec function.
7532 Checks to see if the file specified by the absolute pathname in
7533 ARGS exists. Returns that pathname if found.
7535 The usual use for this function is to check for a library file
7536 (whose name has been expanded with %s). */
7539 if_exists_spec_function (int argc
, const char **argv
)
7541 /* Must have only one argument. */
7542 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7548 /* if-exists-else built-in spec function.
7550 This is like if-exists, but takes an additional argument which
7551 is returned if the first argument does not exist. */
7554 if_exists_else_spec_function (int argc
, const char **argv
)
7556 /* Must have exactly two arguments. */
7560 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))