1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>.
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 gcc.h. 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
90 /* By default there is no special suffix for target executables. */
91 /* FIXME: when autoconf is fixed, remove the host check - dj */
92 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
93 #define HAVE_TARGET_EXECUTABLE_SUFFIX
96 /* By default there is no special suffix for host executables. */
97 #ifdef HOST_EXECUTABLE_SUFFIX
98 #define HAVE_HOST_EXECUTABLE_SUFFIX
100 #define HOST_EXECUTABLE_SUFFIX ""
103 /* By default, the suffix for target object files is ".o". */
104 #ifdef TARGET_OBJECT_SUFFIX
105 #define HAVE_TARGET_OBJECT_SUFFIX
107 #define TARGET_OBJECT_SUFFIX ".o"
110 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
112 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
113 #ifndef LIBRARY_PATH_ENV
114 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
118 #define kill(p,s) raise(s)
121 /* If a stage of compilation returns an exit status >= 1,
122 compilation of that file ceases. */
124 #define MIN_FATAL_STATUS 1
126 /* Flag set by cppspec.c to 1. */
129 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
130 static bool at_file_supplied
;
132 /* Flag saying to pass the greatest exit code returned by a sub-process
133 to the calling program. */
134 static int pass_exit_codes
;
136 /* Definition of string containing the arguments given to configure. */
137 #include "configargs.h"
139 /* Flag saying to print the directories gcc will search through looking for
140 programs, libraries, etc. */
142 static int print_search_dirs
;
144 /* Flag saying to print the full filename of this file
145 as found through our usual search mechanism. */
147 static const char *print_file_name
= NULL
;
149 /* As print_file_name, but search for executable file. */
151 static const char *print_prog_name
= NULL
;
153 /* Flag saying to print the relative path we'd use to
154 find libgcc.a given the current compiler flags. */
156 static int print_multi_directory
;
158 /* Flag saying to print the relative path we'd use to
159 find OS libraries given the current compiler flags. */
161 static int print_multi_os_directory
;
163 /* Flag saying to print the list of subdirectories and
164 compiler flags used to select them in a standard form. */
166 static int print_multi_lib
;
168 /* Flag saying to print the command line options understood by gcc and its
171 static int print_help_list
;
173 /* Flag saying to print the sysroot suffix used for searching for
176 static int print_sysroot_headers_suffix
;
178 /* Flag indicating whether we should print the command and arguments */
180 static int verbose_flag
;
182 /* Flag indicating whether we should ONLY print the command and
183 arguments (like verbose_flag) without executing the command.
184 Displayed arguments are quoted so that the generated command
185 line is suitable for execution. This is intended for use in
186 shell scripts to capture the driver-generated command line. */
187 static int verbose_only_flag
;
189 /* Flag indicating how to print command line options of sub-processes. */
191 static int print_subprocess_help
;
193 /* Flag indicating whether we should report subprocess execution times
194 (if this is supported by the system - see pexecute.c). */
196 static int report_times
;
198 /* Nonzero means place this string before uses of /, so that include
199 and library files can be found in an alternate location. */
201 #ifdef TARGET_SYSTEM_ROOT
202 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
204 static const char *target_system_root
= 0;
207 /* Nonzero means pass the updated target_system_root to the compiler. */
209 static int target_system_root_changed
;
211 /* Nonzero means append this string to target_system_root. */
213 static const char *target_sysroot_suffix
= 0;
215 /* Nonzero means append this string to target_system_root for headers. */
217 static const char *target_sysroot_hdrs_suffix
= 0;
219 /* Nonzero means write "temp" files in source directory
220 and use the source file's name in them, and don't delete them. */
222 static int save_temps_flag
;
224 /* Nonzero means pass multiple source files to the compiler at one time. */
226 static int combine_flag
= 0;
228 /* Nonzero means use pipes to communicate between subprocesses.
229 Overridden by either of the above two flags. */
231 static int use_pipes
;
233 /* The compiler version. */
235 static const char *compiler_version
;
237 /* The target version specified with -V */
239 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
241 /* The target machine specified with -b. */
243 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
245 /* Nonzero if cross-compiling.
246 When -b is used, the value comes from the `specs' file. */
248 #ifdef CROSS_DIRECTORY_STRUCTURE
249 static const char *cross_compile
= "1";
251 static const char *cross_compile
= "0";
254 #ifdef MODIFY_TARGET_NAME
256 /* Information on how to alter the target name based on a command-line
257 switch. The only case we support now is simply appending or deleting a
258 string to or from the end of the first part of the configuration name. */
260 static const struct modify_target
262 const char *const sw
;
263 const enum add_del
{ADD
, DELETE
} add_del
;
264 const char *const str
;
266 modify_target
[] = MODIFY_TARGET_NAME
;
269 /* The number of errors that have occurred; the link phase will not be
270 run if this is nonzero. */
271 static int error_count
= 0;
273 /* Greatest exit code of sub-processes that has been encountered up to
275 static int greatest_status
= 1;
277 /* This is the obstack which we use to allocate many strings. */
279 static struct obstack obstack
;
281 /* This is the obstack to build an environment variable to pass to
282 collect2 that describes all of the relevant switches of what to
283 pass the compiler in building the list of pointers to constructors
286 static struct obstack collect_obstack
;
288 /* This is a list of a wrapper program and its arguments.
289 e.g. wrapper_string of "strace,-c"
290 will cause all programs to run as
291 strace -c program arguments
294 static const char *wrapper_string
;
296 /* Forward declaration for prototypes. */
300 static void init_spec (void);
301 static void store_arg (const char *, int, int);
302 static void insert_wrapper (const char *);
303 static char *load_specs (const char *);
304 static void read_specs (const char *, int);
305 static void set_spec (const char *, const char *);
306 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
307 static char *build_search_list (const struct path_prefix
*, const char *,
309 static void xputenv (const char *);
310 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
312 static int access_check (const char *, int);
313 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
314 static void add_prefix (struct path_prefix
*, const char *, const char *,
316 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
317 const char *, int, int, int);
318 static void translate_options (int *, const char *const **);
319 static char *skip_whitespace (char *);
320 static void delete_if_ordinary (const char *);
321 static void delete_temp_files (void);
322 static void delete_failure_queue (void);
323 static void clear_failure_queue (void);
324 static int check_live_switch (int, int);
325 static const char *handle_braces (const char *);
326 static inline bool input_suffix_matches (const char *, const char *);
327 static inline bool switch_matches (const char *, const char *, int);
328 static inline void mark_matching_switches (const char *, const char *, int);
329 static inline void process_marked_switches (void);
330 static const char *process_brace_body (const char *, const char *, const char *, int, int);
331 static const struct spec_function
*lookup_spec_function (const char *);
332 static const char *eval_spec_function (const char *, const char *);
333 static const char *handle_spec_function (const char *);
334 static char *save_string (const char *, int);
335 static void set_collect_gcc_options (void);
336 static int do_spec_1 (const char *, int, const char *);
337 static int do_spec_2 (const char *);
338 static void do_option_spec (const char *, const char *);
339 static void do_self_spec (const char *);
340 static const char *find_file (const char *);
341 static int is_directory (const char *, bool);
342 static const char *validate_switches (const char *);
343 static void validate_all_switches (void);
344 static inline void validate_switches_from_spec (const char *);
345 static void give_switch (int, int);
346 static int used_arg (const char *, int);
347 static int default_arg (const char *, int);
348 static void set_multilib_dir (void);
349 static void print_multilib_info (void);
350 static void perror_with_name (const char *);
351 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
352 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
353 static void display_help (void);
354 static void add_preprocessor_option (const char *, int);
355 static void add_assembler_option (const char *, int);
356 static void add_linker_option (const char *, int);
357 static void process_command (int, const char **);
358 static int execute (void);
359 static void alloc_args (void);
360 static void clear_args (void);
361 static void fatal_error (int);
362 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
363 static void init_gcc_specs (struct obstack
*, const char *, const char *,
366 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
367 static const char *convert_filename (const char *, int, int);
370 static const char *getenv_spec_function (int, const char **);
371 static const char *if_exists_spec_function (int, const char **);
372 static const char *if_exists_else_spec_function (int, const char **);
373 static const char *replace_outfile_spec_function (int, const char **);
374 static const char *version_compare_spec_function (int, const char **);
375 static const char *include_spec_function (int, const char **);
376 static const char *print_asm_header_spec_function (int, const char **);
378 /* The Specs Language
380 Specs are strings containing lines, each of which (if not blank)
381 is made up of a program name, and arguments separated by spaces.
382 The program name must be exact and start from root, since no path
383 is searched and it is unreliable to depend on the current working directory.
384 Redirection of input or output is not supported; the subprograms must
385 accept filenames saying what files to read and write.
387 In addition, the specs can contain %-sequences to substitute variable text
388 or for conditional text. Here is a table of all defined %-sequences.
389 Note that spaces are not generated automatically around the results of
390 expanding these sequences; therefore, you can concatenate them together
391 or with constant text in a single argument.
393 %% substitute one % into the program name or argument.
394 %i substitute the name of the input file being processed.
395 %b substitute the basename of the input file being processed.
396 This is the substring up to (and not including) the last period
397 and not including the directory.
398 %B same as %b, but include the file suffix (text after the last period).
400 substitute a file name that has suffix SUFFIX and is chosen
401 once per compilation, and mark the argument a la %d. To reduce
402 exposure to denial-of-service attacks, the file name is now
403 chosen in a way that is hard to predict even when previously
404 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
405 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
406 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
407 had been pre-processed. Previously, %g was simply substituted
408 with a file name chosen once per compilation, without regard
409 to any appended suffix (which was therefore treated just like
410 ordinary text), making such attacks more likely to succeed.
412 like %g, but if -pipe is in effect, expands simply to "-".
414 like %g, but if -pipe is in effect, expands to nothing. (We have both
415 %| and %m to accommodate differences between system assemblers; see
416 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
418 like %g, but generates a new temporary file name even if %uSUFFIX
421 substitutes the last file name generated with %uSUFFIX, generating a
422 new one if there is no such last file name. In the absence of any
423 %uSUFFIX, this is just like %gSUFFIX, except they don't share
424 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
425 would involve the generation of two distinct file names, one
426 for each `%g.s' and another for each `%U.s'. Previously, %U was
427 simply substituted with a file name chosen for the previous %u,
428 without regard to any appended suffix.
430 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
431 writable, and if save-temps is off; otherwise, substitute the name
432 of a temporary file, just like %u. This temporary file is not
433 meant for communication between processes, but rather as a junk
436 substitutes .SUFFIX for the suffixes of a matched switch's args when
437 it is subsequently output with %*. SUFFIX is terminated by the next
439 %d marks the argument containing or following the %d as a
440 temporary file name, so that that file will be deleted if CC exits
441 successfully. Unlike %g, this contributes no text to the argument.
442 %w marks the argument containing or following the %w as the
443 "output file" of this compilation. This puts the argument
444 into the sequence of arguments that %o will substitute later.
445 %V indicates that this compilation produces no "output file".
447 like %{...} but mark last argument supplied within
448 as a file to be deleted on failure.
449 %o substitutes the names of all the output files, with spaces
450 automatically placed around them. You should write spaces
451 around the %o as well or the results are undefined.
452 %o is for use in the specs for running the linker.
453 Input files whose names have no recognized suffix are not compiled
454 at all, but they are included among the output files, so they will
456 %O substitutes the suffix for object files. Note that this is
457 handled specially when it immediately follows %g, %u, or %U
458 (with or without a suffix argument) because of the need for
459 those to form complete file names. The handling is such that
460 %O is treated exactly as if it had already been substituted,
461 except that %g, %u, and %U do not currently support additional
462 SUFFIX characters following %O as they would following, for
464 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
465 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
466 and -B options) and -imultilib as necessary.
467 %s current argument is the name of a library or startup file of some sort.
468 Search for that file in a standard list of directories
469 and substitute the full name found.
470 %eSTR Print STR as an error message. STR is terminated by a newline.
471 Use this when inconsistent options are detected.
472 %nSTR Print STR as a notice. STR is terminated by a newline.
473 %x{OPTION} Accumulate an option for %X.
474 %X Output the accumulated linker options specified by compilations.
475 %Y Output the accumulated assembler options specified by compilations.
476 %Z Output the accumulated preprocessor options specified by compilations.
477 %a process ASM_SPEC as a spec.
478 This allows config.h to specify part of the spec for running as.
479 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
480 used here. This can be used to run a post-processor after the
481 assembler has done its job.
482 %D Dump out a -L option for each directory in startfile_prefixes.
483 If multilib_dir is set, extra entries are generated with it affixed.
484 %l process LINK_SPEC as a spec.
485 %L process LIB_SPEC as a spec.
486 %G process LIBGCC_SPEC as a spec.
487 %R Output the concatenation of target_system_root and
488 target_sysroot_suffix.
489 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
490 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
491 %C process CPP_SPEC as a spec.
492 %1 process CC1_SPEC as a spec.
493 %2 process CC1PLUS_SPEC as a spec.
494 %* substitute the variable part of a matched option. (See below.)
495 Note that each comma in the substituted string is replaced by
497 %<S remove all occurrences of -S from the command line.
498 Note - this command is position dependent. % commands in the
499 spec string before this one will see -S, % commands in the
500 spec string after this one will not.
501 %<S* remove all occurrences of all switches beginning with -S from the
504 Call the named function FUNCTION, passing it ARGS. ARGS is
505 first processed as a nested spec string, then split into an
506 argument vector in the usual fashion. The function returns
507 a string which is processed as if it had appeared literally
508 as part of the current spec.
509 %{S} substitutes the -S switch, if that switch was given to CC.
510 If that switch was not specified, this substitutes nothing.
511 Here S is a metasyntactic variable.
512 %{S*} substitutes all the switches specified to CC whose names start
513 with -S. This is used for -o, -I, etc; switches that take
514 arguments. CC considers `-o foo' as being one switch whose
515 name starts with `o'. %{o*} would substitute this text,
516 including the space; thus, two arguments would be generated.
517 %{S*&T*} likewise, but preserve order of S and T options (the order
518 of S and T in the spec is not significant). Can be any number
519 of ampersand-separated variables; for each the wild card is
520 optional. Useful for CPP as %{D*&U*&A*}.
522 %{S:X} substitutes X, if the -S switch was given to CC.
523 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
524 %{S*:X} substitutes X if one or more switches whose names start
525 with -S was given to CC. Normally X is substituted only
526 once, no matter how many such switches appeared. However,
527 if %* appears somewhere in X, then X will be substituted
528 once for each matching switch, with the %* replaced by the
529 part of that switch that matched the '*'.
530 %{.S:X} substitutes X, if processing a file with suffix S.
531 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
532 %{,S:X} substitutes X, if processing a file which will use spec S.
533 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
535 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
536 combined with '!', '.', ',', and '*' as above binding stronger
538 If %* appears in X, all of the alternatives must be starred, and
539 only the first matching alternative is substituted.
540 %{S:X; if S was given to CC, substitutes X;
541 T:Y; else if T was given to CC, substitutes Y;
542 :D} else substitutes D. There can be as many clauses as you need.
543 This may be combined with '.', '!', ',', '|', and '*' as above.
545 %(Spec) processes a specification defined in a specs file as *Spec:
546 %[Spec] as above, but put __ around -D arguments
548 The conditional text X in a %{S:X} or similar construct may contain
549 other nested % constructs or spaces, or even newlines. They are
550 processed as usual, as described above. Trailing white space in X is
551 ignored. White space may also appear anywhere on the left side of the
552 colon in these constructs, except between . or * and the corresponding
555 The -O, -f, -m, and -W switches are handled specifically in these
556 constructs. If another value of -O or the negated form of a -f, -m, or
557 -W switch is found later in the command line, the earlier switch
558 value is ignored, except with {S*} where S is just one letter; this
559 passes all matching options.
561 The character | at the beginning of the predicate text is used to indicate
562 that a command should be piped to the following command, but only if -pipe
565 Note that it is built into CC which switches take arguments and which
566 do not. You might think it would be useful to generalize this to
567 allow each compiler's spec to say which switches take arguments. But
568 this cannot be done in a consistent fashion. CC cannot even decide
569 which input files have been specified without knowing which switches
570 take arguments, and it must know which input files to compile in order
571 to tell which compilers to run.
573 CC also knows implicitly that arguments starting in `-l' are to be
574 treated as compiler output files, and passed to the linker in their
575 proper position among the other output files. */
577 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
579 /* config.h can define ASM_SPEC to provide extra args to the assembler
580 or extra switch-translations. */
585 /* config.h can define ASM_FINAL_SPEC to run a post processor after
586 the assembler has run. */
587 #ifndef ASM_FINAL_SPEC
588 #define ASM_FINAL_SPEC ""
591 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
592 or extra switch-translations. */
597 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
598 or extra switch-translations. */
603 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
604 or extra switch-translations. */
606 #define CC1PLUS_SPEC ""
609 /* config.h can define LINK_SPEC to provide extra args to the linker
610 or extra switch-translations. */
615 /* config.h can define LIB_SPEC to override the default libraries. */
617 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
622 /* XXX: valid only for GNU ld */
623 /* XXX: should exactly match hooks provided by libmudflap.a */
624 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
625 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
626 --wrap=mmap --wrap=munmap --wrap=alloca\
627 } %{fmudflapth: --wrap=pthread_create\
628 }} %{fmudflap|fmudflapth: --wrap=main}"
631 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
634 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
637 #if defined(REAL_LIBGCC_SPEC)
638 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
639 #elif defined(LINK_LIBGCC_SPECIAL_1)
640 /* Have gcc do the search for libgcc.a. */
641 #define LIBGCC_SPEC "libgcc.a%s"
643 #define LIBGCC_SPEC "-lgcc"
647 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
648 #ifndef STARTFILE_SPEC
649 #define STARTFILE_SPEC \
650 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
653 /* config.h can define SWITCHES_NEED_SPACES to control which options
654 require spaces between the option and the argument. */
655 #ifndef SWITCHES_NEED_SPACES
656 #define SWITCHES_NEED_SPACES ""
659 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
661 #define ENDFILE_SPEC ""
665 #define LINKER_NAME "collect2"
668 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
669 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
674 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
676 #ifndef ASM_DEBUG_SPEC
677 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
678 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
679 # define ASM_DEBUG_SPEC \
680 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
681 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" ASM_MAP \
682 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}" ASM_MAP)
684 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
685 # define ASM_DEBUG_SPEC "%{g*:--gstabs}" ASM_MAP
687 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
688 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" ASM_MAP
692 #ifndef ASM_DEBUG_SPEC
693 # define ASM_DEBUG_SPEC ""
696 /* Here is the spec for running the linker, after compiling all files. */
698 /* This is overridable by the target in case they need to specify the
699 -lgcc and -lc order specially, yet not require them to override all
700 of LINK_COMMAND_SPEC. */
701 #ifndef LINK_GCC_C_SEQUENCE_SPEC
702 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
705 #ifndef LINK_SSP_SPEC
706 #ifdef TARGET_LIBC_PROVIDES_SSP
707 #define LINK_SSP_SPEC "%{fstack-protector:}"
709 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
713 #ifndef LINK_PIE_SPEC
715 #define LINK_PIE_SPEC "%{pie:-pie} "
717 #define LINK_PIE_SPEC "%{pie:} "
721 /* -u* was put back because both BSD and SysV seem to support it. */
722 /* %{static:} simply prevents an error message if the target machine
723 doesn't handle -static. */
724 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
725 scripts which exist in user specified directories, or in standard
727 #ifndef LINK_COMMAND_SPEC
728 #define LINK_COMMAND_SPEC "\
729 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
730 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
731 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
732 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
733 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
734 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
735 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
736 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
739 #ifndef LINK_LIBGCC_SPEC
740 /* Generate -L options for startfile prefix list. */
741 # define LINK_LIBGCC_SPEC "%D"
744 #ifndef STARTFILE_PREFIX_SPEC
745 # define STARTFILE_PREFIX_SPEC ""
749 # define SYSROOT_SPEC "--sysroot=%R"
752 #ifndef SYSROOT_SUFFIX_SPEC
753 # define SYSROOT_SUFFIX_SPEC ""
756 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
757 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
760 static const char *asm_debug
;
761 static const char *cpp_spec
= CPP_SPEC
;
762 static const char *cc1_spec
= CC1_SPEC
;
763 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
764 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
765 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
766 static const char *asm_spec
= ASM_SPEC
;
767 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
768 static const char *link_spec
= LINK_SPEC
;
769 static const char *lib_spec
= LIB_SPEC
;
770 static const char *mfwrap_spec
= MFWRAP_SPEC
;
771 static const char *mflib_spec
= MFLIB_SPEC
;
772 static const char *link_gomp_spec
= "";
773 static const char *libgcc_spec
= LIBGCC_SPEC
;
774 static const char *endfile_spec
= ENDFILE_SPEC
;
775 static const char *startfile_spec
= STARTFILE_SPEC
;
776 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
777 static const char *linker_name_spec
= LINKER_NAME
;
778 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
779 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
780 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
781 static const char *sysroot_spec
= SYSROOT_SPEC
;
782 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
783 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
785 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
786 There should be no need to override these in target dependent files,
787 but we need to copy them to the specs file so that newer versions
788 of the GCC driver can correctly drive older tool chains with the
789 appropriate -B options. */
791 /* When cpplib handles traditional preprocessing, get rid of this, and
792 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
793 that we default the front end language better. */
794 static const char *trad_capable_cpp
=
795 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
797 /* We don't wrap .d files in %W{} since a missing .d file, and
798 therefore no dependency entry, confuses make into thinking a .o
799 file that happens to exist is up-to-date. */
800 static const char *cpp_unique_options
=
801 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
802 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
803 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
804 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
805 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
806 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
807 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
808 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
809 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
810 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
813 /* This contains cpp options which are common with cc1_options and are passed
814 only when preprocessing only to avoid duplication. We pass the cc1 spec
815 options to the preprocessor so that it the cc1 spec may manipulate
816 options used to set target flags. Those special target flags settings may
817 in turn cause preprocessor symbols to be defined specially. */
818 static const char *cpp_options
=
819 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
820 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
821 %{undef} %{save-temps:-fpch-preprocess}";
823 /* This contains cpp options which are not passed when the preprocessor
824 output will be used by another program. */
825 static const char *cpp_debug_options
= "%{d*}";
827 /* NB: This is shared amongst all front-ends. */
828 static const char *cc1_options
=
829 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
830 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
831 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
832 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
833 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
834 %{Qn:-fno-ident} %{--help:--help}\
835 %{--target-help:--target-help}\
836 %{--help=*:--help=%(VALUE)}\
837 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
838 %{fsyntax-only:-o %j} %{-param*}\
839 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
840 %{coverage:-fprofile-arcs -ftest-coverage}";
842 static const char *asm_options
=
843 "%{--target-help:%:print-asm-header()} "
845 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
846 to the assembler equivalents. */
847 "%{v} %{w:-W} %{I*} "
849 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
851 static const char *invoke_as
=
852 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
853 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
855 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
858 /* Some compilers have limits on line lengths, and the multilib_select
859 and/or multilib_matches strings can be very long, so we build them at
861 static struct obstack multilib_obstack
;
862 static const char *multilib_select
;
863 static const char *multilib_matches
;
864 static const char *multilib_defaults
;
865 static const char *multilib_exclusions
;
867 /* Check whether a particular argument is a default argument. */
869 #ifndef MULTILIB_DEFAULTS
870 #define MULTILIB_DEFAULTS { "" }
873 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
875 #ifndef DRIVER_SELF_SPECS
876 #define DRIVER_SELF_SPECS ""
879 /* Adding -fopenmp should imply pthreads. This is particularly important
880 for targets that use different start files and suchlike. */
881 #ifndef GOMP_SELF_SPECS
882 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
885 static const char *const driver_self_specs
[] = {
886 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
889 #ifndef OPTION_DEFAULT_SPECS
890 #define OPTION_DEFAULT_SPECS { "", "" }
899 static const struct default_spec
900 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
904 struct user_specs
*next
;
905 const char *filename
;
908 static struct user_specs
*user_specs_head
, *user_specs_tail
;
910 #ifndef SWITCH_TAKES_ARG
911 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
914 #ifndef WORD_SWITCH_TAKES_ARG
915 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
918 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
919 /* This defines which switches stop a full compilation. */
920 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
921 ((CHAR) == 'c' || (CHAR) == 'S')
923 #ifndef SWITCH_CURTAILS_COMPILATION
924 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
925 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
929 /* Record the mapping from file suffixes for compilation specs. */
933 const char *suffix
; /* Use this compiler for input files
934 whose names end in this suffix. */
936 const char *spec
; /* To use this compiler, run this spec. */
938 const char *cpp_spec
; /* If non-NULL, substitute this spec
939 for `%C', rather than the usual
941 const int combinable
; /* If nonzero, compiler can deal with
942 multiple source files at once (IMA). */
943 const int needs_preprocessing
; /* If nonzero, source files need to
944 be run through a preprocessor. */
947 /* Pointer to a vector of `struct compiler' that gives the spec for
948 compiling a file, based on its suffix.
949 A file that does not end in any of these suffixes will be passed
950 unchanged to the loader and nothing else will be done to it.
952 An entry containing two 0s is used to terminate the vector.
954 If multiple entries match a file, the last matching one is used. */
956 static struct compiler
*compilers
;
958 /* Number of entries in `compilers', not counting the null terminator. */
960 static int n_compilers
;
962 /* The default list of file name suffixes and their compilation specs. */
964 static const struct compiler default_compilers
[] =
966 /* Add lists of suffixes of known languages here. If those languages
967 were not present when we built the driver, we will hit these copies
968 and be given a more meaningful error than "file not used since
969 linking is not done". */
970 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
971 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
972 {".mii", "#Objective-C++", 0, 0, 0},
973 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
974 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
975 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
976 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
977 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
978 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
979 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
980 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
981 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
982 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
983 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
984 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
985 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
986 {".r", "#Ratfor", 0, 0, 0},
987 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
988 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
989 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
990 /* Next come the entries for C. */
991 {".c", "@c", 0, 1, 1},
993 /* cc1 has an integrated ISO C preprocessor. We should invoke the
994 external preprocessor if -save-temps is given. */
995 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
997 %{traditional|ftraditional:\
998 %eGNU C no longer supports -traditional without -E}\
1000 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1001 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1002 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1004 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1005 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1006 %{!fsyntax-only:%(invoke_as)}} \
1008 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1009 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
1010 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1011 cc1 %(cpp_unique_options) %(cc1_options)}}\
1012 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1014 "%{!E:%e-E or -x required when input is from standard input}\
1015 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1016 {".h", "@c-header", 0, 0, 0},
1018 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1019 external preprocessor if -save-temps is given. */
1020 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1022 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1023 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1024 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1026 -o %g.s %{!o*:--output-pch=%i.gch}\
1027 %W{o*:--output-pch=%*}%V}\
1028 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1029 cc1 %(cpp_unique_options) %(cc1_options)\
1030 -o %g.s %{!o*:--output-pch=%i.gch}\
1031 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1032 {".i", "@cpp-output", 0, 1, 0},
1034 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1035 {".s", "@assembler", 0, 1, 0},
1037 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1038 {".sx", "@assembler-with-cpp", 0, 1, 0},
1039 {".S", "@assembler-with-cpp", 0, 1, 0},
1040 {"@assembler-with-cpp",
1041 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1042 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1043 %{E|M|MM:%(cpp_debug_options)}\
1044 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1045 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1047 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1048 %{E|M|MM:%(cpp_debug_options)}\
1049 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1050 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1055 /* Mark end of table. */
1059 /* Number of elements in default_compilers, not counting the terminator. */
1061 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1063 /* A vector of options to give to the linker.
1064 These options are accumulated by %x,
1065 and substituted into the linker command with %X. */
1066 static int n_linker_options
;
1067 static char **linker_options
;
1069 /* A vector of options to give to the assembler.
1070 These options are accumulated by -Wa,
1071 and substituted into the assembler command with %Y. */
1072 static int n_assembler_options
;
1073 static char **assembler_options
;
1075 /* A vector of options to give to the preprocessor.
1076 These options are accumulated by -Wp,
1077 and substituted into the preprocessor command with %Z. */
1078 static int n_preprocessor_options
;
1079 static char **preprocessor_options
;
1081 /* Define how to map long options into short ones. */
1083 /* This structure describes one mapping. */
1086 /* The long option's name. */
1087 const char *const name
;
1088 /* The equivalent short option. */
1089 const char *const equivalent
;
1090 /* Argument info. A string of flag chars; NULL equals no options.
1091 a => argument required.
1092 o => argument optional.
1093 j => join argument to equivalent, making one word.
1094 * => require other text after NAME as an argument. */
1095 const char *const arg_info
;
1098 /* This is the table of mappings. Mappings are tried sequentially
1099 for each option encountered; the first one that matches, wins. */
1101 static const struct option_map option_map
[] =
1103 {"--all-warnings", "-Wall", 0},
1104 {"--ansi", "-ansi", 0},
1105 {"--assemble", "-S", 0},
1106 {"--assert", "-A", "a"},
1107 {"--classpath", "-fclasspath=", "aj"},
1108 {"--bootclasspath", "-fbootclasspath=", "aj"},
1109 {"--CLASSPATH", "-fclasspath=", "aj"},
1110 {"--combine", "-combine", 0},
1111 {"--comments", "-C", 0},
1112 {"--comments-in-macros", "-CC", 0},
1113 {"--compile", "-c", 0},
1114 {"--debug", "-g", "oj"},
1115 {"--define-macro", "-D", "aj"},
1116 {"--dependencies", "-M", 0},
1117 {"--dump", "-d", "a"},
1118 {"--dumpbase", "-dumpbase", "a"},
1119 {"--encoding", "-fencoding=", "aj"},
1120 {"--entry", "-e", 0},
1121 {"--extra-warnings", "-W", 0},
1122 {"--extdirs", "-fextdirs=", "aj"},
1123 {"--for-assembler", "-Wa", "a"},
1124 {"--for-linker", "-Xlinker", "a"},
1125 {"--force-link", "-u", "a"},
1126 {"--coverage", "-coverage", 0},
1127 {"--imacros", "-imacros", "a"},
1128 {"--include", "-include", "a"},
1129 {"--include-barrier", "-I-", 0},
1130 {"--include-directory", "-I", "aj"},
1131 {"--include-directory-after", "-idirafter", "a"},
1132 {"--include-prefix", "-iprefix", "a"},
1133 {"--include-with-prefix", "-iwithprefix", "a"},
1134 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1135 {"--include-with-prefix-after", "-iwithprefix", "a"},
1136 {"--language", "-x", "a"},
1137 {"--library-directory", "-L", "a"},
1138 {"--machine", "-m", "aj"},
1139 {"--machine-", "-m", "*j"},
1140 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1141 {"--no-line-commands", "-P", 0},
1142 {"--no-precompiled-includes", "-noprecomp", 0},
1143 {"--no-standard-includes", "-nostdinc", 0},
1144 {"--no-standard-libraries", "-nostdlib", 0},
1145 {"--no-warnings", "-w", 0},
1146 {"--optimize", "-O", "oj"},
1147 {"--output", "-o", "a"},
1148 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1149 {"--param", "--param", "a"},
1150 {"--pass-exit-codes", "-pass-exit-codes", 0},
1151 {"--pedantic", "-pedantic", 0},
1152 {"--pedantic-errors", "-pedantic-errors", 0},
1153 {"--pie", "-pie", 0},
1154 {"--pipe", "-pipe", 0},
1155 {"--prefix", "-B", "a"},
1156 {"--preprocess", "-E", 0},
1157 {"--print-search-dirs", "-print-search-dirs", 0},
1158 {"--print-file-name", "-print-file-name=", "aj"},
1159 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1160 {"--print-missing-file-dependencies", "-MG", 0},
1161 {"--print-multi-lib", "-print-multi-lib", 0},
1162 {"--print-multi-directory", "-print-multi-directory", 0},
1163 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1164 {"--print-prog-name", "-print-prog-name=", "aj"},
1165 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1166 {"--profile", "-p", 0},
1167 {"--profile-blocks", "-a", 0},
1168 {"--quiet", "-q", 0},
1169 {"--resource", "-fcompile-resource=", "aj"},
1170 {"--save-temps", "-save-temps", 0},
1171 {"--shared", "-shared", 0},
1172 {"--silent", "-q", 0},
1173 {"--specs", "-specs=", "aj"},
1174 {"--static", "-static", 0},
1175 {"--std", "-std=", "aj"},
1176 {"--symbolic", "-symbolic", 0},
1177 {"--sysroot", "--sysroot=", "aj"},
1178 {"--time", "-time", 0},
1179 {"--trace-includes", "-H", 0},
1180 {"--traditional", "-traditional", 0},
1181 {"--traditional-cpp", "-traditional-cpp", 0},
1182 {"--trigraphs", "-trigraphs", 0},
1183 {"--undefine-macro", "-U", "aj"},
1184 {"--user-dependencies", "-MM", 0},
1185 {"--verbose", "-v", 0},
1186 {"--warn-", "-W", "*j"},
1187 {"--write-dependencies", "-MD", 0},
1188 {"--write-user-dependencies", "-MMD", 0},
1193 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1194 static const struct {
1195 const char *const option_found
;
1196 const char *const replacements
;
1197 } target_option_translations
[] =
1199 TARGET_OPTION_TRANSLATE_TABLE
,
1204 /* Translate the options described by *ARGCP and *ARGVP.
1205 Make a new vector and store it back in *ARGVP,
1206 and store its length in *ARGVC. */
1209 translate_options (int *argcp
, const char *const **argvp
)
1213 const char *const *argv
= *argvp
;
1214 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1215 const char **newv
= xmalloc (newvsize
);
1219 newv
[newindex
++] = argv
[i
++];
1223 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1227 target_option_translations
[tott_idx
].option_found
;
1230 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1237 for (sp
= target_option_translations
[tott_idx
].replacements
;
1244 newvsize
+= spaces
* sizeof (const char *);
1245 newv
= xrealloc (newv
, newvsize
);
1247 sp
= target_option_translations
[tott_idx
].replacements
;
1256 newv
[newindex
++] = np
;
1257 while (*np
!= ' ' && *np
)
1268 if (target_option_translations
[tott_idx
].option_found
)
1272 /* Translate -- options. */
1273 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1276 /* Find a mapping that applies to this option. */
1277 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1279 size_t optlen
= strlen (option_map
[j
].name
);
1280 size_t arglen
= strlen (argv
[i
]);
1281 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1282 const char *arginfo
= option_map
[j
].arg_info
;
1287 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1289 const char *arg
= 0;
1291 if (arglen
< optlen
)
1294 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1295 if (strlen (option_map
[k
].name
) >= arglen
1296 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1298 error ("ambiguous abbreviation %s", argv
[i
]);
1302 if (k
!= ARRAY_SIZE (option_map
))
1306 if (arglen
> optlen
)
1308 /* If the option has an argument, accept that. */
1309 if (argv
[i
][optlen
] == '=')
1310 arg
= argv
[i
] + optlen
+ 1;
1312 /* If this mapping requires extra text at end of name,
1313 accept that as "argument". */
1314 else if (strchr (arginfo
, '*') != 0)
1315 arg
= argv
[i
] + optlen
;
1317 /* Otherwise, extra text at end means mismatch.
1318 Try other mappings. */
1323 else if (strchr (arginfo
, '*') != 0)
1325 error ("incomplete '%s' option", option_map
[j
].name
);
1329 /* Handle arguments. */
1330 if (strchr (arginfo
, 'a') != 0)
1336 error ("missing argument to '%s' option",
1337 option_map
[j
].name
);
1344 else if (strchr (arginfo
, '*') != 0)
1346 else if (strchr (arginfo
, 'o') == 0)
1349 error ("extraneous argument to '%s' option",
1350 option_map
[j
].name
);
1354 /* Store the translation as one argv elt or as two. */
1355 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1356 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1360 newv
[newindex
++] = option_map
[j
].equivalent
;
1361 newv
[newindex
++] = arg
;
1364 newv
[newindex
++] = option_map
[j
].equivalent
;
1372 /* Handle old-fashioned options--just copy them through,
1373 with their arguments. */
1374 else if (argv
[i
][0] == '-')
1376 const char *p
= argv
[i
] + 1;
1380 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1381 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1382 else if (WORD_SWITCH_TAKES_ARG (p
))
1383 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1384 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1387 else if (! strcmp (p
, "Xlinker"))
1389 else if (! strcmp (p
, "Xpreprocessor"))
1391 else if (! strcmp (p
, "Xassembler"))
1394 /* Watch out for an option at the end of the command line that
1395 is missing arguments, and avoid skipping past the end of the
1397 if (nskip
+ i
> argc
)
1402 newv
[newindex
++] = argv
[i
++];
1407 /* Ordinary operands, or +e options. */
1408 newv
[newindex
++] = argv
[i
++];
1418 skip_whitespace (char *p
)
1422 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1423 be considered whitespace. */
1424 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1426 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1440 /* Structures to keep track of prefixes to try when looking for files. */
1444 const char *prefix
; /* String to prepend to the path. */
1445 struct prefix_list
*next
; /* Next in linked list. */
1446 int require_machine_suffix
; /* Don't use without machine_suffix. */
1447 /* 2 means try both machine_suffix and just_machine_suffix. */
1448 int priority
; /* Sort key - priority within list. */
1449 int os_multilib
; /* 1 if OS multilib scheme should be used,
1450 0 for GCC multilib scheme. */
1455 struct prefix_list
*plist
; /* List of prefixes to try */
1456 int max_len
; /* Max length of a prefix in PLIST */
1457 const char *name
; /* Name of this list (used in config stuff) */
1460 /* List of prefixes to try when looking for executables. */
1462 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1464 /* List of prefixes to try when looking for startup (crt0) files. */
1466 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1468 /* List of prefixes to try when looking for include files. */
1470 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1472 /* Suffix to attach to directories searched for commands.
1473 This looks like `MACHINE/VERSION/'. */
1475 static const char *machine_suffix
= 0;
1477 /* Suffix to attach to directories searched for commands.
1478 This is just `MACHINE/'. */
1480 static const char *just_machine_suffix
= 0;
1482 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1484 static const char *gcc_exec_prefix
;
1486 /* Adjusted value of standard_libexec_prefix. */
1488 static const char *gcc_libexec_prefix
;
1490 /* Default prefixes to attach to command names. */
1492 #ifndef STANDARD_STARTFILE_PREFIX_1
1493 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1495 #ifndef STANDARD_STARTFILE_PREFIX_2
1496 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1499 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1500 #undef MD_EXEC_PREFIX
1501 #undef MD_STARTFILE_PREFIX
1502 #undef MD_STARTFILE_PREFIX_1
1505 /* If no prefixes defined, use the null string, which will disable them. */
1506 #ifndef MD_EXEC_PREFIX
1507 #define MD_EXEC_PREFIX ""
1509 #ifndef MD_STARTFILE_PREFIX
1510 #define MD_STARTFILE_PREFIX ""
1512 #ifndef MD_STARTFILE_PREFIX_1
1513 #define MD_STARTFILE_PREFIX_1 ""
1516 /* These directories are locations set at configure-time based on the
1517 --prefix option provided to configure. Their initializers are
1518 defined in Makefile.in. These paths are not *directly* used when
1519 gcc_exec_prefix is set because, in that case, we know where the
1520 compiler has been installed, and use paths relative to that
1521 location instead. */
1522 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1523 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1524 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1525 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1527 /* For native compilers, these are well-known paths containing
1528 components that may be provided by the system. For cross
1529 compilers, these paths are not used. */
1530 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1531 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1532 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1533 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1534 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1535 static const char *const standard_startfile_prefix_1
1536 = STANDARD_STARTFILE_PREFIX_1
;
1537 static const char *const standard_startfile_prefix_2
1538 = STANDARD_STARTFILE_PREFIX_2
;
1540 /* A relative path to be used in finding the location of tools
1541 relative to the driver. */
1542 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1544 /* Subdirectory to use for locating libraries. Set by
1545 set_multilib_dir based on the compilation options. */
1547 static const char *multilib_dir
;
1549 /* Subdirectory to use for locating libraries in OS conventions. Set by
1550 set_multilib_dir based on the compilation options. */
1552 static const char *multilib_os_dir
;
1554 /* Structure to keep track of the specs that have been defined so far.
1555 These are accessed using %(specname) or %[specname] in a compiler
1560 /* The following 2 fields must be first */
1561 /* to allow EXTRA_SPECS to be initialized */
1562 const char *name
; /* name of the spec. */
1563 const char *ptr
; /* available ptr if no static pointer */
1565 /* The following fields are not initialized */
1566 /* by EXTRA_SPECS */
1567 const char **ptr_spec
; /* pointer to the spec itself. */
1568 struct spec_list
*next
; /* Next spec in linked list. */
1569 int name_len
; /* length of the name */
1570 int alloc_p
; /* whether string was allocated */
1573 #define INIT_STATIC_SPEC(NAME,PTR) \
1574 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1576 /* List of statically defined specs. */
1577 static struct spec_list static_specs
[] =
1579 INIT_STATIC_SPEC ("asm", &asm_spec
),
1580 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1581 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1582 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1583 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1584 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1585 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1586 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1587 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1588 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1589 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1590 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1591 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1592 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1593 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1594 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1595 INIT_STATIC_SPEC ("link", &link_spec
),
1596 INIT_STATIC_SPEC ("lib", &lib_spec
),
1597 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1598 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1599 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1600 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1601 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1602 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1603 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1604 INIT_STATIC_SPEC ("version", &compiler_version
),
1605 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1606 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1607 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1608 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1609 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1610 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1611 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1612 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1613 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1614 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1615 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1616 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1617 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1618 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1619 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1622 #ifdef EXTRA_SPECS /* additional specs needed */
1623 /* Structure to keep track of just the first two args of a spec_list.
1624 That is all that the EXTRA_SPECS macro gives us. */
1627 const char *const name
;
1628 const char *const ptr
;
1631 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1632 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1635 /* List of dynamically allocates specs that have been defined so far. */
1637 static struct spec_list
*specs
= (struct spec_list
*) 0;
1639 /* List of static spec functions. */
1641 static const struct spec_function static_spec_functions
[] =
1643 { "getenv", getenv_spec_function
},
1644 { "if-exists", if_exists_spec_function
},
1645 { "if-exists-else", if_exists_else_spec_function
},
1646 { "replace-outfile", replace_outfile_spec_function
},
1647 { "version-compare", version_compare_spec_function
},
1648 { "include", include_spec_function
},
1649 { "print-asm-header", print_asm_header_spec_function
},
1650 #ifdef EXTRA_SPEC_FUNCTIONS
1651 EXTRA_SPEC_FUNCTIONS
1656 static int processing_spec_function
;
1658 /* Add appropriate libgcc specs to OBSTACK, taking into account
1659 various permutations of -shared-libgcc, -shared, and such. */
1661 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1663 #ifndef USE_LD_AS_NEEDED
1664 #define USE_LD_AS_NEEDED 0
1668 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1669 const char *static_name
, const char *eh_name
)
1673 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1674 "%{!static:%{!static-libgcc:"
1675 #if USE_LD_AS_NEEDED
1676 "%{!shared-libgcc:",
1677 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1680 shared_name
, "%{!shared: ", static_name
, "}"
1684 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1685 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1689 "%{shared-libgcc:", shared_name
, "}"
1690 "%{!shared-libgcc:", static_name
, "}"
1693 "%{shared:", shared_name
, "}"
1698 obstack_grow (obstack
, buf
, strlen (buf
));
1701 #endif /* ENABLE_SHARED_LIBGCC */
1703 /* Initialize the specs lookup routines. */
1708 struct spec_list
*next
= (struct spec_list
*) 0;
1709 struct spec_list
*sl
= (struct spec_list
*) 0;
1713 return; /* Already initialized. */
1716 notice ("Using built-in specs.\n");
1719 extra_specs
= xcalloc (sizeof (struct spec_list
),
1720 ARRAY_SIZE (extra_specs_1
));
1722 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1724 sl
= &extra_specs
[i
];
1725 sl
->name
= extra_specs_1
[i
].name
;
1726 sl
->ptr
= extra_specs_1
[i
].ptr
;
1728 sl
->name_len
= strlen (sl
->name
);
1729 sl
->ptr_spec
= &sl
->ptr
;
1734 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1736 sl
= &static_specs
[i
];
1741 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1742 /* ??? If neither -shared-libgcc nor --static-libgcc was
1743 seen, then we should be making an educated guess. Some proposed
1744 heuristics for ELF include:
1746 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1747 program will be doing dynamic loading, which will likely
1748 need the shared libgcc.
1750 (2) If "-ldl", then it's also a fair bet that we're doing
1753 (3) For each ET_DYN we're linking against (either through -lfoo
1754 or /some/path/foo.so), check to see whether it or one of
1755 its dependencies depends on a shared libgcc.
1759 If the runtime is fixed to look for program headers instead
1760 of calling __register_frame_info at all, for each object,
1761 use the shared libgcc if any EH symbol referenced.
1763 If crtstuff is fixed to not invoke __register_frame_info
1764 automatically, for each object, use the shared libgcc if
1765 any non-empty unwind section found.
1767 Doing any of this probably requires invoking an external program to
1768 do the actual object file scanning. */
1770 const char *p
= libgcc_spec
;
1773 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1774 when given the proper command line arguments. */
1777 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1779 init_gcc_specs (&obstack
,
1781 #ifdef USE_LIBUNWIND_EXCEPTIONS
1787 #ifdef USE_LIBUNWIND_EXCEPTIONS
1788 # ifdef HAVE_LD_STATIC_DYNAMIC
1789 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1799 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1801 /* Ug. We don't know shared library extensions. Hope that
1802 systems that use this form don't do shared libraries. */
1803 init_gcc_specs (&obstack
,
1807 #ifdef USE_LIBUNWIND_EXCEPTIONS
1816 obstack_1grow (&obstack
, *p
);
1817 in_sep
= (*p
== ' ');
1822 obstack_1grow (&obstack
, '\0');
1823 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1826 #ifdef USE_AS_TRADITIONAL_FORMAT
1827 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1829 static const char tf
[] = "--traditional-format ";
1830 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1831 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1832 asm_spec
= XOBFINISH (&obstack
, const char *);
1836 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1837 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1838 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1839 link_spec
= XOBFINISH (&obstack
, const char *);
1845 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1846 removed; If the spec starts with a + then SPEC is added to the end of the
1850 set_spec (const char *name
, const char *spec
)
1852 struct spec_list
*sl
;
1853 const char *old_spec
;
1854 int name_len
= strlen (name
);
1857 /* If this is the first call, initialize the statically allocated specs. */
1860 struct spec_list
*next
= (struct spec_list
*) 0;
1861 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1863 sl
= &static_specs
[i
];
1870 /* See if the spec already exists. */
1871 for (sl
= specs
; sl
; sl
= sl
->next
)
1872 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1877 /* Not found - make it. */
1878 sl
= XNEW (struct spec_list
);
1879 sl
->name
= xstrdup (name
);
1880 sl
->name_len
= name_len
;
1881 sl
->ptr_spec
= &sl
->ptr
;
1883 *(sl
->ptr_spec
) = "";
1888 old_spec
= *(sl
->ptr_spec
);
1889 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1890 ? concat (old_spec
, spec
+ 1, NULL
)
1895 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1898 /* Free the old spec. */
1899 if (old_spec
&& sl
->alloc_p
)
1900 free (CONST_CAST(char *, old_spec
));
1905 /* Accumulate a command (program name and args), and run it. */
1907 /* Vector of pointers to arguments in the current line of specifications. */
1909 static const char **argbuf
;
1911 /* Number of elements allocated in argbuf. */
1913 static int argbuf_length
;
1915 /* Number of elements in argbuf currently in use (containing args). */
1917 static int argbuf_index
;
1919 /* Position in the argbuf array containing the name of the output file
1920 (the value associated with the "-o" flag). */
1922 static int have_o_argbuf_index
= 0;
1924 /* Were the options -c or -S passed. */
1925 static int have_c
= 0;
1927 /* Was the option -o passed. */
1928 static int have_o
= 0;
1930 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1931 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1934 static struct temp_name
{
1935 const char *suffix
; /* suffix associated with the code. */
1936 int length
; /* strlen (suffix). */
1937 int unique
; /* Indicates whether %g or %u/%U was used. */
1938 const char *filename
; /* associated filename. */
1939 int filename_length
; /* strlen (filename). */
1940 struct temp_name
*next
;
1943 /* Number of commands executed so far. */
1945 static int execution_count
;
1947 /* Number of commands that exited with a signal. */
1949 static int signal_count
;
1951 /* Name with which this program was invoked. */
1953 static const char *programname
;
1955 /* Allocate the argument vector. */
1961 argbuf
= XNEWVEC (const char *, argbuf_length
);
1964 /* Clear out the vector of arguments (after a command is executed). */
1972 /* Add one argument to the vector at the end.
1973 This is done when a space is seen or at the end of the line.
1974 If DELETE_ALWAYS is nonzero, the arg is a filename
1975 and the file should be deleted eventually.
1976 If DELETE_FAILURE is nonzero, the arg is a filename
1977 and the file should be deleted if this compilation fails. */
1980 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1982 if (argbuf_index
+ 1 == argbuf_length
)
1983 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1985 argbuf
[argbuf_index
++] = arg
;
1986 argbuf
[argbuf_index
] = 0;
1988 if (strcmp (arg
, "-o") == 0)
1989 have_o_argbuf_index
= argbuf_index
;
1990 if (delete_always
|| delete_failure
)
1991 record_temp_file (arg
, delete_always
, delete_failure
);
1994 /* Load specs from a file name named FILENAME, replacing occurrences of
1995 various different types of line-endings, \r\n, \n\r and just \r, with
1999 load_specs (const char *filename
)
2003 struct stat statbuf
;
2010 notice ("Reading specs from %s\n", filename
);
2012 /* Open and stat the file. */
2013 desc
= open (filename
, O_RDONLY
, 0);
2015 pfatal_with_name (filename
);
2016 if (stat (filename
, &statbuf
) < 0)
2017 pfatal_with_name (filename
);
2019 /* Read contents of file into BUFFER. */
2020 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2021 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2023 pfatal_with_name (filename
);
2024 buffer
[readlen
] = 0;
2027 specs
= XNEWVEC (char, readlen
+ 1);
2029 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2035 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2037 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2051 /* Read compilation specs from a file named FILENAME,
2052 replacing the default ones.
2054 A suffix which starts with `*' is a definition for
2055 one of the machine-specific sub-specs. The "suffix" should be
2056 *asm, *cc1, *cpp, *link, *startfile, etc.
2057 The corresponding spec is stored in asm_spec, etc.,
2058 rather than in the `compilers' vector.
2060 Anything invalid in the file is a fatal error. */
2063 read_specs (const char *filename
, int main_p
)
2068 buffer
= load_specs (filename
);
2070 /* Scan BUFFER for specs, putting them in the vector. */
2076 char *in
, *out
, *p1
, *p2
, *p3
;
2078 /* Advance P in BUFFER to the next nonblank nocomment line. */
2079 p
= skip_whitespace (p
);
2083 /* Is this a special command that starts with '%'? */
2084 /* Don't allow this for the main specs file, since it would
2085 encourage people to overwrite it. */
2086 if (*p
== '%' && !main_p
)
2089 while (*p
&& *p
!= '\n')
2095 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2096 && (p1
[sizeof "%include" - 1] == ' '
2097 || p1
[sizeof "%include" - 1] == '\t'))
2101 p1
+= sizeof ("%include");
2102 while (*p1
== ' ' || *p1
== '\t')
2105 if (*p1
++ != '<' || p
[-2] != '>')
2106 fatal ("specs %%include syntax malformed after %ld characters",
2107 (long) (p1
- buffer
+ 1));
2110 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2111 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2114 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2115 && (p1
[sizeof "%include_noerr" - 1] == ' '
2116 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2120 p1
+= sizeof "%include_noerr";
2121 while (*p1
== ' ' || *p1
== '\t')
2124 if (*p1
++ != '<' || p
[-2] != '>')
2125 fatal ("specs %%include syntax malformed after %ld characters",
2126 (long) (p1
- buffer
+ 1));
2129 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2131 read_specs (new_filename
, FALSE
);
2132 else if (verbose_flag
)
2133 notice ("could not find specs file %s\n", p1
);
2136 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2137 && (p1
[sizeof "%rename" - 1] == ' '
2138 || p1
[sizeof "%rename" - 1] == '\t'))
2141 struct spec_list
*sl
;
2142 struct spec_list
*newsl
;
2144 /* Get original name. */
2145 p1
+= sizeof "%rename";
2146 while (*p1
== ' ' || *p1
== '\t')
2149 if (! ISALPHA ((unsigned char) *p1
))
2150 fatal ("specs %%rename syntax malformed after %ld characters",
2151 (long) (p1
- buffer
));
2154 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2157 if (*p2
!= ' ' && *p2
!= '\t')
2158 fatal ("specs %%rename syntax malformed after %ld characters",
2159 (long) (p2
- buffer
));
2163 while (*p2
== ' ' || *p2
== '\t')
2166 if (! ISALPHA ((unsigned char) *p2
))
2167 fatal ("specs %%rename syntax malformed after %ld characters",
2168 (long) (p2
- buffer
));
2170 /* Get new spec name. */
2172 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2176 fatal ("specs %%rename syntax malformed after %ld characters",
2177 (long) (p3
- buffer
));
2180 for (sl
= specs
; sl
; sl
= sl
->next
)
2181 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2185 fatal ("specs %s spec was not found to be renamed", p1
);
2187 if (strcmp (p1
, p2
) == 0)
2190 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2191 if (strcmp (newsl
->name
, p2
) == 0)
2192 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2197 notice ("rename spec %s to %s\n", p1
, p2
);
2199 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2203 set_spec (p2
, *(sl
->ptr_spec
));
2205 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2207 *(sl
->ptr_spec
) = "";
2212 fatal ("specs unknown %% command after %ld characters",
2213 (long) (p1
- buffer
));
2216 /* Find the colon that should end the suffix. */
2218 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2221 /* The colon shouldn't be missing. */
2223 fatal ("specs file malformed after %ld characters",
2224 (long) (p1
- buffer
));
2226 /* Skip back over trailing whitespace. */
2228 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2231 /* Copy the suffix to a string. */
2232 suffix
= save_string (p
, p2
- p
);
2233 /* Find the next line. */
2234 p
= skip_whitespace (p1
+ 1);
2236 fatal ("specs file malformed after %ld characters",
2237 (long) (p
- buffer
));
2240 /* Find next blank line or end of string. */
2241 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2244 /* Specs end at the blank line and do not include the newline. */
2245 spec
= save_string (p
, p1
- p
);
2248 /* Delete backslash-newline sequences from the spec. */
2253 if (in
[0] == '\\' && in
[1] == '\n')
2255 else if (in
[0] == '#')
2256 while (*in
&& *in
!= '\n')
2264 if (suffix
[0] == '*')
2266 if (! strcmp (suffix
, "*link_command"))
2267 link_command_spec
= spec
;
2269 set_spec (suffix
+ 1, spec
);
2273 /* Add this pair to the vector. */
2275 = xrealloc (compilers
,
2276 (n_compilers
+ 2) * sizeof (struct compiler
));
2278 compilers
[n_compilers
].suffix
= suffix
;
2279 compilers
[n_compilers
].spec
= spec
;
2281 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2285 link_command_spec
= spec
;
2288 if (link_command_spec
== 0)
2289 fatal ("spec file has no spec for linking");
2292 /* Record the names of temporary files we tell compilers to write,
2293 and delete them at the end of the run. */
2295 /* This is the common prefix we use to make temp file names.
2296 It is chosen once for each run of this program.
2297 It is substituted into a spec by %g or %j.
2298 Thus, all temp file names contain this prefix.
2299 In practice, all temp file names start with this prefix.
2301 This prefix comes from the envvar TMPDIR if it is defined;
2302 otherwise, from the P_tmpdir macro if that is defined;
2303 otherwise, in /usr/tmp or /tmp;
2304 or finally the current directory if all else fails. */
2306 static const char *temp_filename
;
2308 /* Length of the prefix. */
2310 static int temp_filename_length
;
2312 /* Define the list of temporary files to delete. */
2317 struct temp_file
*next
;
2320 /* Queue of files to delete on success or failure of compilation. */
2321 static struct temp_file
*always_delete_queue
;
2322 /* Queue of files to delete on failure of compilation. */
2323 static struct temp_file
*failure_delete_queue
;
2325 /* Record FILENAME as a file to be deleted automatically.
2326 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2327 otherwise delete it in any case.
2328 FAIL_DELETE nonzero means delete it if a compilation step fails;
2329 otherwise delete it in any case. */
2332 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2334 char *const name
= xstrdup (filename
);
2338 struct temp_file
*temp
;
2339 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2340 if (! strcmp (name
, temp
->name
))
2343 temp
= XNEW (struct temp_file
);
2344 temp
->next
= always_delete_queue
;
2346 always_delete_queue
= temp
;
2353 struct temp_file
*temp
;
2354 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2355 if (! strcmp (name
, temp
->name
))
2358 temp
= XNEW (struct temp_file
);
2359 temp
->next
= failure_delete_queue
;
2361 failure_delete_queue
= temp
;
2367 /* Delete all the temporary files whose names we previously recorded. */
2369 #ifndef DELETE_IF_ORDINARY
2370 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2373 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2374 if (unlink (NAME) < 0) \
2376 perror_with_name (NAME); \
2381 delete_if_ordinary (const char *name
)
2387 printf ("Delete %s? (y or n) ", name
);
2391 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2394 if (i
== 'y' || i
== 'Y')
2396 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2400 delete_temp_files (void)
2402 struct temp_file
*temp
;
2404 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2405 delete_if_ordinary (temp
->name
);
2406 always_delete_queue
= 0;
2409 /* Delete all the files to be deleted on error. */
2412 delete_failure_queue (void)
2414 struct temp_file
*temp
;
2416 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2417 delete_if_ordinary (temp
->name
);
2421 clear_failure_queue (void)
2423 failure_delete_queue
= 0;
2426 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2428 If DO_MULTI is true iterate over the paths twice, first with multilib
2429 suffix then without, otherwise iterate over the paths once without
2430 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2431 to avoid visiting the same path twice, but we could do better. For
2432 instance, /usr/lib/../lib is considered different from /usr/lib.
2433 At least EXTRA_SPACE chars past the end of the path passed to
2434 CALLBACK are available for use by the callback.
2435 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2437 Returns the value returned by CALLBACK. */
2440 for_each_path (const struct path_prefix
*paths
,
2443 void *(*callback
) (char *, void *),
2444 void *callback_info
)
2446 struct prefix_list
*pl
;
2447 const char *multi_dir
= NULL
;
2448 const char *multi_os_dir
= NULL
;
2449 const char *multi_suffix
;
2450 const char *just_multi_suffix
;
2453 bool skip_multi_dir
= false;
2454 bool skip_multi_os_dir
= false;
2456 multi_suffix
= machine_suffix
;
2457 just_multi_suffix
= just_machine_suffix
;
2458 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2460 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2461 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2462 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2464 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2465 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2469 size_t multi_dir_len
= 0;
2470 size_t multi_os_dir_len
= 0;
2472 size_t just_suffix_len
;
2476 multi_dir_len
= strlen (multi_dir
);
2478 multi_os_dir_len
= strlen (multi_os_dir
);
2479 suffix_len
= strlen (multi_suffix
);
2480 just_suffix_len
= strlen (just_multi_suffix
);
2484 len
= paths
->max_len
+ extra_space
+ 1;
2485 if (suffix_len
> multi_os_dir_len
)
2488 len
+= multi_os_dir_len
;
2489 path
= XNEWVEC (char, len
);
2492 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2494 len
= strlen (pl
->prefix
);
2495 memcpy (path
, pl
->prefix
, len
);
2497 /* Look first in MACHINE/VERSION subdirectory. */
2498 if (!skip_multi_dir
)
2500 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2501 ret
= callback (path
, callback_info
);
2506 /* Some paths are tried with just the machine (ie. target)
2507 subdir. This is used for finding as, ld, etc. */
2509 && pl
->require_machine_suffix
== 2)
2511 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2512 ret
= callback (path
, callback_info
);
2517 /* Now try the base path. */
2518 if (!pl
->require_machine_suffix
2519 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2521 const char *this_multi
;
2522 size_t this_multi_len
;
2524 if (pl
->os_multilib
)
2526 this_multi
= multi_os_dir
;
2527 this_multi_len
= multi_os_dir_len
;
2531 this_multi
= multi_dir
;
2532 this_multi_len
= multi_dir_len
;
2536 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2540 ret
= callback (path
, callback_info
);
2548 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2551 /* Run through the paths again, this time without multilibs.
2552 Don't repeat any we have already seen. */
2555 free (CONST_CAST (char *, multi_dir
));
2557 free (CONST_CAST (char *, multi_suffix
));
2558 multi_suffix
= machine_suffix
;
2559 free (CONST_CAST (char *, just_multi_suffix
));
2560 just_multi_suffix
= just_machine_suffix
;
2563 skip_multi_dir
= true;
2566 free (CONST_CAST (char *, multi_os_dir
));
2567 multi_os_dir
= NULL
;
2570 skip_multi_os_dir
= true;
2575 free (CONST_CAST (char *, multi_dir
));
2576 free (CONST_CAST (char *, multi_suffix
));
2577 free (CONST_CAST (char *, just_multi_suffix
));
2580 free (CONST_CAST (char *, multi_os_dir
));
2586 /* Callback for build_search_list. Adds path to obstack being built. */
2588 struct add_to_obstack_info
{
2595 add_to_obstack (char *path
, void *data
)
2597 struct add_to_obstack_info
*info
= data
;
2599 if (info
->check_dir
&& !is_directory (path
, false))
2602 if (!info
->first_time
)
2603 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2605 obstack_grow (info
->ob
, path
, strlen (path
));
2607 info
->first_time
= false;
2611 /* Add or change the value of an environment variable, outputting the
2612 change to standard error if in verbose mode. */
2614 xputenv (const char *string
)
2617 notice ("%s\n", string
);
2618 putenv (CONST_CAST (char *, string
));
2621 /* Build a list of search directories from PATHS.
2622 PREFIX is a string to prepend to the list.
2623 If CHECK_DIR_P is true we ensure the directory exists.
2624 If DO_MULTI is true, multilib paths are output first, then
2626 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2627 It is also used by the --print-search-dirs flag. */
2630 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2631 bool check_dir
, bool do_multi
)
2633 struct add_to_obstack_info info
;
2635 info
.ob
= &collect_obstack
;
2636 info
.check_dir
= check_dir
;
2637 info
.first_time
= true;
2639 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2640 obstack_1grow (&collect_obstack
, '=');
2642 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2644 obstack_1grow (&collect_obstack
, '\0');
2645 return XOBFINISH (&collect_obstack
, char *);
2648 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2652 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2655 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2658 /* Check whether NAME can be accessed in MODE. This is like access,
2659 except that it never considers directories to be executable. */
2662 access_check (const char *name
, int mode
)
2668 if (stat (name
, &st
) < 0
2669 || S_ISDIR (st
.st_mode
))
2673 return access (name
, mode
);
2676 /* Callback for find_a_file. Appends the file name to the directory
2677 path. If the resulting file exists in the right mode, return the
2678 full pathname to the file. */
2680 struct file_at_path_info
{
2689 file_at_path (char *path
, void *data
)
2691 struct file_at_path_info
*info
= data
;
2692 size_t len
= strlen (path
);
2694 memcpy (path
+ len
, info
->name
, info
->name_len
);
2695 len
+= info
->name_len
;
2697 /* Some systems have a suffix for executable files.
2698 So try appending that first. */
2699 if (info
->suffix_len
)
2701 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2702 if (access_check (path
, info
->mode
) == 0)
2707 if (access_check (path
, info
->mode
) == 0)
2713 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2714 access to check permissions. If DO_MULTI is true, search multilib
2715 paths then non-multilib paths, otherwise do not search multilib paths.
2716 Return 0 if not found, otherwise return its name, allocated with malloc. */
2719 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2722 struct file_at_path_info info
;
2724 #ifdef DEFAULT_ASSEMBLER
2725 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2726 return xstrdup (DEFAULT_ASSEMBLER
);
2729 #ifdef DEFAULT_LINKER
2730 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2731 return xstrdup (DEFAULT_LINKER
);
2734 /* Determine the filename to execute (special case for absolute paths). */
2736 if (IS_ABSOLUTE_PATH (name
))
2738 if (access (name
, mode
) == 0)
2739 return xstrdup (name
);
2745 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2746 info
.name_len
= strlen (info
.name
);
2747 info
.suffix_len
= strlen (info
.suffix
);
2750 return for_each_path (pprefix
, do_multi
, info
.name_len
+ info
.suffix_len
,
2751 file_at_path
, &info
);
2754 /* Ranking of prefixes in the sort list. -B prefixes are put before
2757 enum path_prefix_priority
2759 PREFIX_PRIORITY_B_OPT
,
2760 PREFIX_PRIORITY_LAST
2763 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2764 order according to PRIORITY. Within each PRIORITY, new entries are
2767 If WARN is nonzero, we will warn if no file is found
2768 through this prefix. WARN should point to an int
2769 which will be set to 1 if this entry is used.
2771 COMPONENT is the value to be passed to update_path.
2773 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2774 the complete value of machine_suffix.
2775 2 means try both machine_suffix and just_machine_suffix. */
2778 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2779 const char *component
, /* enum prefix_priority */ int priority
,
2780 int require_machine_suffix
, int os_multilib
)
2782 struct prefix_list
*pl
, **prev
;
2785 for (prev
= &pprefix
->plist
;
2786 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2787 prev
= &(*prev
)->next
)
2790 /* Keep track of the longest prefix. */
2792 prefix
= update_path (prefix
, component
);
2793 len
= strlen (prefix
);
2794 if (len
> pprefix
->max_len
)
2795 pprefix
->max_len
= len
;
2797 pl
= XNEW (struct prefix_list
);
2798 pl
->prefix
= prefix
;
2799 pl
->require_machine_suffix
= require_machine_suffix
;
2800 pl
->priority
= priority
;
2801 pl
->os_multilib
= os_multilib
;
2803 /* Insert after PREV. */
2808 /* Same as add_prefix, but prepending target_system_root to prefix. */
2809 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2811 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2812 const char *component
,
2813 /* enum prefix_priority */ int priority
,
2814 int require_machine_suffix
, int os_multilib
)
2816 if (!IS_ABSOLUTE_PATH (prefix
))
2817 fatal ("system path '%s' is not absolute", prefix
);
2819 if (target_system_root
)
2821 if (target_sysroot_suffix
)
2822 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2823 prefix
= concat (target_system_root
, prefix
, NULL
);
2825 /* We have to override this because GCC's notion of sysroot
2826 moves along with GCC. */
2830 add_prefix (pprefix
, prefix
, component
, priority
,
2831 require_machine_suffix
, os_multilib
);
2834 /* Execute the command specified by the arguments on the current line of spec.
2835 When using pipes, this includes several piped-together commands
2836 with `|' between them.
2838 Return 0 if successful, -1 if failed. */
2844 int n_commands
; /* # of command. */
2846 struct pex_obj
*pex
;
2849 const char *prog
; /* program name. */
2850 const char **argv
; /* vector of args. */
2853 struct command
*commands
; /* each command buffer with above info. */
2855 gcc_assert (!processing_spec_function
);
2859 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2860 argbuf
[0] = (string
) ? string
: argbuf
[0];
2861 insert_wrapper (wrapper_string
);
2864 /* Count # of piped commands. */
2865 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2866 if (strcmp (argbuf
[i
], "|") == 0)
2869 /* Get storage for each command. */
2870 commands
= alloca (n_commands
* sizeof (struct command
));
2872 /* Split argbuf into its separate piped processes,
2873 and record info about each one.
2874 Also search for the programs that are to be run. */
2876 commands
[0].prog
= argbuf
[0]; /* first command. */
2877 commands
[0].argv
= &argbuf
[0];
2879 if (!wrapper_string
)
2881 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2882 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2885 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2886 if (strcmp (argbuf
[i
], "|") == 0)
2887 { /* each command. */
2888 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2889 fatal ("-pipe not supported");
2891 argbuf
[i
] = 0; /* termination of command args. */
2892 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2893 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2894 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2897 commands
[n_commands
].argv
[0] = string
;
2901 argbuf
[argbuf_index
] = 0;
2903 /* If -v, print what we are about to do, and maybe query. */
2907 /* For help listings, put a blank line between sub-processes. */
2908 if (print_help_list
)
2909 fputc ('\n', stderr
);
2911 /* Print each piped command as a separate line. */
2912 for (i
= 0; i
< n_commands
; i
++)
2914 const char *const *j
;
2916 if (verbose_only_flag
)
2918 for (j
= commands
[i
].argv
; *j
; j
++)
2921 fprintf (stderr
, " \"");
2922 for (p
= *j
; *p
; ++p
)
2924 if (*p
== '"' || *p
== '\\' || *p
== '$')
2925 fputc ('\\', stderr
);
2928 fputc ('"', stderr
);
2932 for (j
= commands
[i
].argv
; *j
; j
++)
2933 fprintf (stderr
, " %s", *j
);
2935 /* Print a pipe symbol after all but the last command. */
2936 if (i
+ 1 != n_commands
)
2937 fprintf (stderr
, " |");
2938 fprintf (stderr
, "\n");
2941 if (verbose_only_flag
!= 0)
2943 /* verbose_only_flag should act as if the spec was
2944 executed, so increment execution_count before
2945 returning. This prevents spurious warnings about
2946 unused linker input files, etc. */
2951 notice ("\nGo ahead? (y or n) ");
2955 while (getchar () != '\n')
2958 if (i
!= 'y' && i
!= 'Y')
2963 #ifdef ENABLE_VALGRIND_CHECKING
2964 /* Run the each command through valgrind. To simplify prepending the
2965 path to valgrind and the option "-q" (for quiet operation unless
2966 something triggers), we allocate a separate argv array. */
2968 for (i
= 0; i
< n_commands
; i
++)
2974 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2977 argv
= alloca ((argc
+ 3) * sizeof (char *));
2979 argv
[0] = VALGRIND_PATH
;
2981 for (j
= 2; j
< argc
+ 2; j
++)
2982 argv
[j
] = commands
[i
].argv
[j
- 2];
2985 commands
[i
].argv
= argv
;
2986 commands
[i
].prog
= argv
[0];
2990 /* Run each piped subprocess. */
2992 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2993 programname
, temp_filename
);
2995 pfatal_with_name (_("pex_init failed"));
2997 for (i
= 0; i
< n_commands
; i
++)
3001 const char *string
= commands
[i
].argv
[0];
3003 errmsg
= pex_run (pex
,
3004 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3005 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3006 string
, CONST_CAST (char **, commands
[i
].argv
),
3015 pfatal_with_name (errmsg
);
3019 if (string
!= commands
[i
].prog
)
3020 free (CONST_CAST (char *, string
));
3025 /* Wait for all the subprocesses to finish. */
3029 struct pex_time
*times
= NULL
;
3032 statuses
= alloca (n_commands
* sizeof (int));
3033 if (!pex_get_status (pex
, n_commands
, statuses
))
3034 pfatal_with_name (_("failed to get exit status"));
3038 times
= alloca (n_commands
* sizeof (struct pex_time
));
3039 if (!pex_get_times (pex
, n_commands
, times
))
3040 pfatal_with_name (_("failed to get process times"));
3045 for (i
= 0; i
< n_commands
; ++i
)
3047 int status
= statuses
[i
];
3049 if (WIFSIGNALED (status
))
3052 /* SIGPIPE is a special case. It happens in -pipe mode
3053 when the compiler dies before the preprocessor is done,
3054 or the assembler dies before the compiler is done.
3055 There's generally been an error already, and this is
3056 just fallout. So don't generate another error unless
3057 we would otherwise have succeeded. */
3058 if (WTERMSIG (status
) == SIGPIPE
3059 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3067 Internal error: %s (program %s)\n\
3068 Please submit a full bug report.\n\
3069 See %s for instructions.",
3070 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3073 else if (WIFEXITED (status
)
3074 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3076 if (WEXITSTATUS (status
) > greatest_status
)
3077 greatest_status
= WEXITSTATUS (status
);
3083 struct pex_time
*pt
= ×
[i
];
3086 ut
= ((double) pt
->user_seconds
3087 + (double) pt
->user_microseconds
/ 1.0e6
);
3088 st
= ((double) pt
->system_seconds
3089 + (double) pt
->system_microseconds
/ 1.0e6
);
3092 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3100 /* Find all the switches given to us
3101 and make a vector describing them.
3102 The elements of the vector are strings, one per switch given.
3103 If a switch uses following arguments, then the `part1' field
3104 is the switch itself and the `args' field
3105 is a null-terminated vector containing the following arguments.
3106 Bits in the `live_cond' field are:
3107 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3108 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3109 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3110 The `validated' field is nonzero if any spec has looked at this switch;
3111 if it remains zero at the end of the run, it must be meaningless. */
3113 #define SWITCH_LIVE 0x1
3114 #define SWITCH_FALSE 0x2
3115 #define SWITCH_IGNORE 0x4
3121 unsigned int live_cond
;
3122 unsigned char validated
;
3123 unsigned char ordering
;
3126 static struct switchstr
*switches
;
3128 static int n_switches
;
3130 /* Language is one of three things:
3132 1) The name of a real programming language.
3133 2) NULL, indicating that no one has figured out
3135 3) '*', indicating that the file should be passed
3140 const char *language
;
3141 struct compiler
*incompiler
;
3146 /* Also a vector of input files specified. */
3148 static struct infile
*infiles
;
3152 /* True if multiple input files are being compiled to a single
3155 static bool combine_inputs
;
3157 /* This counts the number of libraries added by lang_specific_driver, so that
3158 we can tell if there were any user supplied any files or libraries. */
3160 static int added_libraries
;
3162 /* And a vector of corresponding output files is made up later. */
3164 const char **outfiles
;
3166 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3168 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3169 is true if we should look for an executable suffix. DO_OBJ
3170 is true if we should look for an object suffix. */
3173 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3174 int do_obj ATTRIBUTE_UNUSED
)
3176 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3184 len
= strlen (name
);
3186 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3187 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3188 if (do_obj
&& len
> 2
3189 && name
[len
- 2] == '.'
3190 && name
[len
- 1] == 'o')
3192 obstack_grow (&obstack
, name
, len
- 2);
3193 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3194 name
= XOBFINISH (&obstack
, const char *);
3198 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3199 /* If there is no filetype, make it the executable suffix (which includes
3200 the "."). But don't get confused if we have just "-o". */
3201 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3204 for (i
= len
- 1; i
>= 0; i
--)
3205 if (IS_DIR_SEPARATOR (name
[i
]))
3208 for (i
++; i
< len
; i
++)
3212 obstack_grow (&obstack
, name
, len
);
3213 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3214 strlen (TARGET_EXECUTABLE_SUFFIX
));
3215 name
= XOBFINISH (&obstack
, const char *);
3222 /* Display the command line switches accepted by gcc. */
3226 printf (_("Usage: %s [options] file...\n"), programname
);
3227 fputs (_("Options:\n"), stdout
);
3229 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3230 fputs (_(" --help Display this information\n"), stdout
);
3231 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3232 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3233 fputs (_(" Display specific types of command line options\n"), stdout
);
3235 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3236 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3237 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3238 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3239 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3240 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3241 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3242 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3243 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3245 -print-multi-lib Display the mapping between command line options and\n\
3246 multiple library search directories\n"), stdout
);
3247 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3248 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3249 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3250 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3251 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3252 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3253 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3254 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3255 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3256 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3257 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3258 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3259 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3260 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3262 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3263 and libraries\n"), stdout
);
3264 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3265 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3266 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3267 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3268 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3269 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3270 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3271 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3272 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3274 -x <language> Specify the language of the following input files\n\
3275 Permissible languages include: c c++ assembler none\n\
3276 'none' means revert to the default behavior of\n\
3277 guessing the language based on the file's extension\n\
3281 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3282 passed on to the various sub-processes invoked by %s. In order to pass\n\
3283 other options on to these processes the -W<letter> options must be used.\n\
3286 /* The rest of the options are displayed by invocations of the various
3291 add_preprocessor_option (const char *option
, int len
)
3293 n_preprocessor_options
++;
3295 if (! preprocessor_options
)
3296 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3298 preprocessor_options
= xrealloc (preprocessor_options
,
3299 n_preprocessor_options
* sizeof (char *));
3301 preprocessor_options
[n_preprocessor_options
- 1] =
3302 save_string (option
, len
);
3306 add_assembler_option (const char *option
, int len
)
3308 n_assembler_options
++;
3310 if (! assembler_options
)
3311 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3313 assembler_options
= xrealloc (assembler_options
,
3314 n_assembler_options
* sizeof (char *));
3316 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3320 add_linker_option (const char *option
, int len
)
3324 if (! linker_options
)
3325 linker_options
= XNEWVEC (char *, n_linker_options
);
3327 linker_options
= xrealloc (linker_options
,
3328 n_linker_options
* sizeof (char *));
3330 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3333 /* Create the vector `switches' and its contents.
3334 Store its length in `n_switches'. */
3337 process_command (int argc
, const char **argv
)
3342 const char *spec_lang
= 0;
3343 int last_language_n_infiles
;
3344 int lang_n_infiles
= 0;
3345 #ifdef MODIFY_TARGET_NAME
3346 int is_modify_target_name
;
3349 const char *tooldir_prefix
;
3351 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3355 added_libraries
= 0;
3357 /* Figure compiler version from version string. */
3359 compiler_version
= temp1
= xstrdup (version_string
);
3361 for (; *temp1
; ++temp1
)
3370 /* If there is a -V or -b option (or both), process it now, before
3371 trying to interpret the rest of the command line.
3372 Use heuristic that all configuration names must have at least
3373 one dash '-'. This allows us to pass options starting with -b. */
3374 if (argc
> 1 && argv
[1][0] == '-'
3375 && (argv
[1][1] == 'V' ||
3376 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3378 const char *new_version
= DEFAULT_TARGET_VERSION
;
3379 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3380 const char *progname
= argv
[0];
3385 while (argc
> 1 && argv
[1][0] == '-'
3386 && (argv
[1][1] == 'V' ||
3387 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3389 char opt
= argv
[1][1];
3391 if (argv
[1][2] != '\0')
3404 fatal ("'-%c' option must have argument", opt
);
3411 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3412 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3414 new_argv0
= xmemdup (progname
, baselen
,
3415 baselen
+ concat_length (new_version
, new_machine
,
3416 "-gcc-", NULL
) + 1);
3417 strcpy (new_argv0
+ baselen
, new_machine
);
3418 strcat (new_argv0
, "-gcc-");
3419 strcat (new_argv0
, new_version
);
3421 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3422 (argc
+ 1) * sizeof (argv
[0]));
3423 new_argv
[0] = new_argv0
;
3425 execvp (new_argv0
, new_argv
);
3426 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3429 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3430 see if we can create it from the pathname specified in argv[0]. */
3432 gcc_libexec_prefix
= standard_libexec_prefix
;
3434 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3435 if (!gcc_exec_prefix
)
3437 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3438 standard_exec_prefix
);
3439 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3440 standard_bindir_prefix
,
3441 standard_libexec_prefix
);
3442 if (gcc_exec_prefix
)
3443 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3447 /* make_relative_prefix requires a program name, but
3448 GCC_EXEC_PREFIX is typically a directory name with a trailing
3449 / (which is ignored by make_relative_prefix), so append a
3451 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3452 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3453 standard_exec_prefix
,
3454 standard_libexec_prefix
);
3456 /* The path is unrelocated, so fallback to the original setting. */
3457 if (!gcc_libexec_prefix
)
3458 gcc_libexec_prefix
= standard_libexec_prefix
;
3464 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3465 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3466 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3468 if (gcc_exec_prefix
)
3470 int len
= strlen (gcc_exec_prefix
);
3472 if (len
> (int) sizeof ("/lib/gcc/") - 1
3473 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3475 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3476 if (IS_DIR_SEPARATOR (*temp
)
3477 && strncmp (temp
+ 1, "lib", 3) == 0
3478 && IS_DIR_SEPARATOR (temp
[4])
3479 && strncmp (temp
+ 5, "gcc", 3) == 0)
3480 len
-= sizeof ("/lib/gcc/") - 1;
3483 set_std_prefix (gcc_exec_prefix
, len
);
3484 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3485 PREFIX_PRIORITY_LAST
, 0, 0);
3486 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3487 PREFIX_PRIORITY_LAST
, 0, 0);
3490 /* COMPILER_PATH and LIBRARY_PATH have values
3491 that are lists of directory names with colons. */
3493 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3496 const char *startp
, *endp
;
3497 char *nstore
= alloca (strlen (temp
) + 3);
3499 startp
= endp
= temp
;
3502 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3504 strncpy (nstore
, startp
, endp
- startp
);
3506 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3507 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3509 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3510 nstore
[endp
- startp
+ 1] = 0;
3513 nstore
[endp
- startp
] = 0;
3514 add_prefix (&exec_prefixes
, nstore
, 0,
3515 PREFIX_PRIORITY_LAST
, 0, 0);
3516 add_prefix (&include_prefixes
, nstore
, 0,
3517 PREFIX_PRIORITY_LAST
, 0, 0);
3520 endp
= startp
= endp
+ 1;
3527 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3528 if (temp
&& *cross_compile
== '0')
3530 const char *startp
, *endp
;
3531 char *nstore
= alloca (strlen (temp
) + 3);
3533 startp
= endp
= temp
;
3536 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3538 strncpy (nstore
, startp
, endp
- startp
);
3540 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3541 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3543 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3544 nstore
[endp
- startp
+ 1] = 0;
3547 nstore
[endp
- startp
] = 0;
3548 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3549 PREFIX_PRIORITY_LAST
, 0, 1);
3552 endp
= startp
= endp
+ 1;
3559 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3560 GET_ENVIRONMENT (temp
, "LPATH");
3561 if (temp
&& *cross_compile
== '0')
3563 const char *startp
, *endp
;
3564 char *nstore
= alloca (strlen (temp
) + 3);
3566 startp
= endp
= temp
;
3569 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3571 strncpy (nstore
, startp
, endp
- startp
);
3573 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3574 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3576 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3577 nstore
[endp
- startp
+ 1] = 0;
3580 nstore
[endp
- startp
] = 0;
3581 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3582 PREFIX_PRIORITY_LAST
, 0, 1);
3585 endp
= startp
= endp
+ 1;
3592 /* Convert new-style -- options to old-style. */
3593 translate_options (&argc
, (const char *const **) &argv
);
3595 /* Do language-specific adjustment/addition of flags. */
3596 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3598 /* Scan argv twice. Here, the first time, just count how many switches
3599 there will be in their vector, and how many input files in theirs.
3600 Here we also parse the switches that cc itself uses (e.g. -v). */
3602 for (i
= 1; i
< argc
; i
++)
3604 if (! strcmp (argv
[i
], "-dumpspecs"))
3606 struct spec_list
*sl
;
3608 for (sl
= specs
; sl
; sl
= sl
->next
)
3609 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3610 if (link_command_spec
)
3611 printf ("*link_command:\n%s\n\n", link_command_spec
);
3614 else if (! strcmp (argv
[i
], "-dumpversion"))
3616 printf ("%s\n", spec_version
);
3619 else if (! strcmp (argv
[i
], "-dumpmachine"))
3621 printf ("%s\n", spec_machine
);
3624 else if (strcmp (argv
[i
], "-fversion") == 0)
3626 /* translate_options () has turned --version into -fversion. */
3627 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
3629 printf ("Copyright %s 2008 Free Software Foundation, Inc.\n",
3631 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3632 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3636 else if (strcmp (argv
[i
], "-fhelp") == 0)
3638 /* translate_options () has turned --help into -fhelp. */
3639 print_help_list
= 1;
3641 /* We will be passing a dummy file on to the sub-processes. */
3645 /* CPP driver cannot obtain switch from cc1_options. */
3647 add_preprocessor_option ("--help", 6);
3648 add_assembler_option ("--help", 6);
3649 add_linker_option ("--help", 6);
3651 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3653 /* translate_options () has turned --help into -fhelp. */
3654 print_subprocess_help
= 2;
3656 /* We will be passing a dummy file on to the sub-processes. */
3660 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3662 /* translate_options() has turned --target-help into -ftarget-help. */
3663 print_subprocess_help
= 1;
3665 /* We will be passing a dummy file on to the sub-processes. */
3669 /* CPP driver cannot obtain switch from cc1_options. */
3671 add_preprocessor_option ("--target-help", 13);
3672 add_assembler_option ("--target-help", 13);
3673 add_linker_option ("--target-help", 13);
3675 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3677 pass_exit_codes
= 1;
3680 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3681 print_search_dirs
= 1;
3682 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3683 print_file_name
= "libgcc.a";
3684 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3685 print_file_name
= argv
[i
] + 17;
3686 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3687 print_prog_name
= argv
[i
] + 17;
3688 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3689 print_multi_lib
= 1;
3690 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3691 print_multi_directory
= 1;
3692 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3693 print_multi_os_directory
= 1;
3694 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3695 print_sysroot_headers_suffix
= 1;
3696 else if (! strncmp (argv
[i
], "-Wa,", 4))
3699 /* Pass the rest of this option to the assembler. */
3701 /* Split the argument at commas. */
3703 for (j
= 4; argv
[i
][j
]; j
++)
3704 if (argv
[i
][j
] == ',')
3706 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3710 /* Record the part after the last comma. */
3711 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3713 else if (! strncmp (argv
[i
], "-Wp,", 4))
3716 /* Pass the rest of this option to the preprocessor. */
3718 /* Split the argument at commas. */
3720 for (j
= 4; argv
[i
][j
]; j
++)
3721 if (argv
[i
][j
] == ',')
3723 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3727 /* Record the part after the last comma. */
3728 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3730 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3731 /* The +e options to the C++ front-end. */
3733 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3736 /* Split the argument at commas. */
3737 for (j
= 3; argv
[i
][j
]; j
++)
3738 n_infiles
+= (argv
[i
][j
] == ',');
3740 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3743 fatal ("argument to '-Xlinker' is missing");
3748 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3751 fatal ("argument to '-Xpreprocessor' is missing");
3753 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3755 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3758 fatal ("argument to '-Xassembler' is missing");
3760 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3762 else if (strcmp (argv
[i
], "-l") == 0)
3765 fatal ("argument to '-l' is missing");
3770 else if (strncmp (argv
[i
], "-l", 2) == 0)
3772 else if (strcmp (argv
[i
], "-save-temps") == 0)
3774 save_temps_flag
= 1;
3777 else if (strcmp (argv
[i
], "-combine") == 0)
3782 else if (strcmp (argv
[i
], "-specs") == 0)
3784 struct user_specs
*user
= XNEW (struct user_specs
);
3786 fatal ("argument to '-specs' is missing");
3788 user
->next
= (struct user_specs
*) 0;
3789 user
->filename
= argv
[i
];
3790 if (user_specs_tail
)
3791 user_specs_tail
->next
= user
;
3793 user_specs_head
= user
;
3794 user_specs_tail
= user
;
3796 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3798 struct user_specs
*user
= XNEW (struct user_specs
);
3799 if (strlen (argv
[i
]) == 7)
3800 fatal ("argument to '-specs=' is missing");
3802 user
->next
= (struct user_specs
*) 0;
3803 user
->filename
= argv
[i
] + 7;
3804 if (user_specs_tail
)
3805 user_specs_tail
->next
= user
;
3807 user_specs_head
= user
;
3808 user_specs_tail
= user
;
3810 else if (strcmp (argv
[i
], "-time") == 0)
3812 else if (strcmp (argv
[i
], "-pipe") == 0)
3814 /* -pipe has to go into the switches array as well as
3819 else if (strcmp (argv
[i
], "-wrapper") == 0)
3822 fatal ("argument to '-wrapper' is missing");
3824 wrapper_string
= argv
[i
];
3828 else if (strcmp (argv
[i
], "-###") == 0)
3830 /* This is similar to -v except that there is no execution
3831 of the commands and the echoed arguments are quoted. It
3832 is intended for use in shell scripts to capture the
3833 driver-generated command line. */
3834 verbose_only_flag
++;
3837 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3839 const char *p
= &argv
[i
][1];
3845 if (NULL
== strchr(argv
[i
] + 2, '-'))
3850 fatal ("'-%c' must come at the start of the command line", c
);
3858 if (p
[1] == 0 && i
+ 1 == argc
)
3859 fatal ("argument to '-B' is missing");
3865 len
= strlen (value
);
3867 /* Catch the case where the user has forgotten to append a
3868 directory separator to the path. Note, they may be using
3869 -B to add an executable name prefix, eg "i386-elf-", in
3870 order to distinguish between multiple installations of
3871 GCC in the same directory. Hence we must check to see
3872 if appending a directory separator actually makes a
3873 valid directory name. */
3874 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3875 && is_directory (value
, false))
3877 char *tmp
= XNEWVEC (char, len
+ 2);
3878 strcpy (tmp
, value
);
3879 tmp
[len
] = DIR_SEPARATOR
;
3884 add_prefix (&exec_prefixes
, value
, NULL
,
3885 PREFIX_PRIORITY_B_OPT
, 0, 0);
3886 add_prefix (&startfile_prefixes
, value
, NULL
,
3887 PREFIX_PRIORITY_B_OPT
, 0, 0);
3888 add_prefix (&include_prefixes
, value
, NULL
,
3889 PREFIX_PRIORITY_B_OPT
, 0, 0);
3894 case 'v': /* Print our subcommands and print versions. */
3896 /* If they do anything other than exactly `-v', don't set
3897 verbose_flag; rather, continue on to give the error. */
3915 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3920 /* Forward scan, just in case -S or -c is specified
3927 if (argv
[j
][0] == '-')
3929 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3935 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3936 j
+= skip
- (argv
[j
][2] != 0);
3937 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3944 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3946 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3948 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3955 #ifdef MODIFY_TARGET_NAME
3956 is_modify_target_name
= 0;
3958 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3959 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3961 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3962 + strlen (spec_machine
));
3965 int made_addition
= 0;
3967 is_modify_target_name
= 1;
3968 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3970 if (modify_target
[j
].add_del
== DELETE
3971 && (! strncmp (q
, modify_target
[j
].str
,
3972 strlen (modify_target
[j
].str
))))
3973 p
+= strlen (modify_target
[j
].str
);
3974 else if (modify_target
[j
].add_del
== ADD
3975 && ! made_addition
&& *p
== '-')
3977 for (r
= modify_target
[j
].str
; *r
!= 0; )
3985 spec_machine
= new_name
;
3988 if (is_modify_target_name
)
3994 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3995 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3996 else if (WORD_SWITCH_TAKES_ARG (p
))
3997 i
+= WORD_SWITCH_TAKES_ARG (p
);
4007 if (save_temps_flag
&& use_pipes
)
4009 /* -save-temps overrides -pipe, so that temp files are produced */
4010 if (save_temps_flag
)
4011 error ("warning: -pipe ignored because -save-temps specified");
4015 /* Set up the search paths. We add directories that we expect to
4016 contain GNU Toolchain components before directories specified by
4017 the machine description so that we will find GNU components (like
4018 the GNU assembler) before those of the host system. */
4020 /* If we don't know where the toolchain has been installed, use the
4021 configured-in locations. */
4022 if (!gcc_exec_prefix
)
4025 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4026 PREFIX_PRIORITY_LAST
, 1, 0);
4027 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4028 PREFIX_PRIORITY_LAST
, 2, 0);
4029 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4030 PREFIX_PRIORITY_LAST
, 2, 0);
4032 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4033 PREFIX_PRIORITY_LAST
, 1, 0);
4036 /* If not cross-compiling, search well-known system locations. */
4037 if (*cross_compile
== '0')
4040 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
4041 PREFIX_PRIORITY_LAST
, 2, 0);
4042 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4043 PREFIX_PRIORITY_LAST
, 2, 0);
4045 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4046 PREFIX_PRIORITY_LAST
, 1, 0);
4049 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4050 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4051 dir_separator_str
, NULL
);
4053 /* Look for tools relative to the location from which the driver is
4054 running, or, if that is not available, the configured prefix. */
4056 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4057 spec_machine
, dir_separator_str
,
4058 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4060 add_prefix (&exec_prefixes
,
4061 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4062 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4063 add_prefix (&startfile_prefixes
,
4064 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4065 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4067 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4068 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4069 then consider it to relocate with the rest of the GCC installation
4070 if GCC_EXEC_PREFIX is set.
4071 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4072 if (target_system_root
&& gcc_exec_prefix
)
4074 char *tmp_prefix
= make_relative_prefix (argv
[0],
4075 standard_bindir_prefix
,
4076 target_system_root
);
4077 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4079 target_system_root
= tmp_prefix
;
4080 target_system_root_changed
= 1;
4085 /* More prefixes are enabled in main, after we read the specs file
4086 and determine whether this is cross-compilation or not. */
4088 /* Then create the space for the vectors and scan again. */
4090 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4091 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4094 last_language_n_infiles
= -1;
4096 /* This, time, copy the text of each switch and store a pointer
4097 to the copy in the vector of switches.
4098 Store all the infiles in their vector. */
4100 for (i
= 1; i
< argc
; i
++)
4102 /* Just skip the switches that were handled by the preceding loop. */
4103 #ifdef MODIFY_TARGET_NAME
4104 is_modify_target_name
= 0;
4106 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4107 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4108 is_modify_target_name
= 1;
4110 if (is_modify_target_name
)
4114 if (! strncmp (argv
[i
], "-Wa,", 4))
4116 else if (! strncmp (argv
[i
], "-Wp,", 4))
4118 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4120 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4122 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4124 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4126 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4128 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4130 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4132 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4134 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4136 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4138 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4139 target_system_root_changed
= 1;
4141 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4143 /* Compensate for the +e options to the C++ front-end;
4144 they're there simply for cfront call-compatibility. We do
4145 some magic in default_compilers to pass them down properly.
4146 Note we deliberately start at the `+' here, to avoid passing
4147 -e0 or -e1 down into the linker. */
4148 switches
[n_switches
].part1
= &argv
[i
][0];
4149 switches
[n_switches
].args
= 0;
4150 switches
[n_switches
].live_cond
= 0;
4151 switches
[n_switches
].validated
= 0;
4154 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4157 /* Split the argument at commas. */
4159 for (j
= 4; argv
[i
][j
]; j
++)
4160 if (argv
[i
][j
] == ',')
4162 infiles
[n_infiles
].language
= "*";
4163 infiles
[n_infiles
++].name
4164 = save_string (argv
[i
] + prev
, j
- prev
);
4167 /* Record the part after the last comma. */
4168 infiles
[n_infiles
].language
= "*";
4169 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4171 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4173 infiles
[n_infiles
].language
= "*";
4174 infiles
[n_infiles
++].name
= argv
[++i
];
4176 /* Xassembler and Xpreprocessor were already handled in the first argv
4177 scan, so all we need to do here is ignore them and their argument. */
4178 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4180 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4182 else if (strcmp (argv
[i
], "-l") == 0)
4183 { /* POSIX allows separation of -l and the lib arg;
4184 canonicalize by concatenating -l with its arg */
4185 infiles
[n_infiles
].language
= "*";
4186 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4188 else if (strncmp (argv
[i
], "-l", 2) == 0)
4190 infiles
[n_infiles
].language
= "*";
4191 infiles
[n_infiles
++].name
= argv
[i
];
4193 else if (strcmp (argv
[i
], "-wrapper") == 0)
4195 else if (strcmp (argv
[i
], "-specs") == 0)
4197 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4199 else if (strcmp (argv
[i
], "-time") == 0)
4201 else if (strcmp (argv
[i
], "-###") == 0)
4203 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4205 const char *p
= &argv
[i
][1];
4210 if (p
[1] == 0 && i
+ 1 == argc
)
4211 fatal ("argument to '-x' is missing");
4213 spec_lang
= argv
[++i
];
4216 if (! strcmp (spec_lang
, "none"))
4217 /* Suppress the warning if -xnone comes after the last input
4218 file, because alternate command interfaces like g++ might
4219 find it useful to place -xnone after each input file. */
4222 last_language_n_infiles
= n_infiles
;
4225 switches
[n_switches
].part1
= p
;
4226 /* Deal with option arguments in separate argv elements. */
4227 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4228 || WORD_SWITCH_TAKES_ARG (p
))
4231 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4235 /* Count only the option arguments in separate argv elements. */
4236 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4238 if (i
+ n_args
>= argc
)
4239 fatal ("argument to '-%s' is missing", p
);
4240 switches
[n_switches
].args
4241 = XNEWVEC (const char *, n_args
+ 1);
4243 switches
[n_switches
].args
[j
++] = argv
[++i
];
4244 /* Null-terminate the vector. */
4245 switches
[n_switches
].args
[j
] = 0;
4247 else if (strchr (switches_need_spaces
, c
))
4249 /* On some systems, ld cannot handle some options without
4250 a space. So split the option from its argument. */
4251 char *part1
= XNEWVEC (char, 2);
4255 switches
[n_switches
].part1
= part1
;
4256 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4257 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4258 switches
[n_switches
].args
[1] = 0;
4261 switches
[n_switches
].args
= 0;
4263 switches
[n_switches
].live_cond
= 0;
4264 switches
[n_switches
].validated
= 0;
4265 switches
[n_switches
].ordering
= 0;
4266 /* These are always valid, since gcc.c itself understands the
4267 first four and gfortranspec.c understands -static-libgfortran. */
4268 if (!strcmp (p
, "save-temps")
4269 || !strcmp (p
, "static-libgcc")
4270 || !strcmp (p
, "shared-libgcc")
4271 || !strcmp (p
, "pipe")
4272 || !strcmp (p
, "static-libgfortran"))
4273 switches
[n_switches
].validated
= 1;
4276 char ch
= switches
[n_switches
].part1
[0];
4278 switches
[n_switches
].validated
= 1;
4284 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4285 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4288 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4290 perror_with_name (argv
[i
]);
4295 infiles
[n_infiles
].language
= spec_lang
;
4296 infiles
[n_infiles
++].name
= argv
[i
];
4301 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4302 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4304 /* Ensure we only invoke each subprocess once. */
4305 if (print_subprocess_help
|| print_help_list
)
4309 /* Create a dummy input file, so that we can pass
4310 the help option on to the various sub-processes. */
4311 infiles
[0].language
= "c";
4312 infiles
[0].name
= "help-dummy";
4315 switches
[n_switches
].part1
= 0;
4316 infiles
[n_infiles
].name
= 0;
4319 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4320 and place that in the environment. */
4323 set_collect_gcc_options (void)
4328 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4330 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4331 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4334 for (i
= 0; (int) i
< n_switches
; i
++)
4336 const char *const *args
;
4339 obstack_grow (&collect_obstack
, " ", 1);
4343 /* Ignore elided switches. */
4344 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4347 obstack_grow (&collect_obstack
, "'-", 2);
4348 q
= switches
[i
].part1
;
4349 while ((p
= strchr (q
, '\'')))
4351 obstack_grow (&collect_obstack
, q
, p
- q
);
4352 obstack_grow (&collect_obstack
, "'\\''", 4);
4355 obstack_grow (&collect_obstack
, q
, strlen (q
));
4356 obstack_grow (&collect_obstack
, "'", 1);
4358 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4360 obstack_grow (&collect_obstack
, " '", 2);
4362 while ((p
= strchr (q
, '\'')))
4364 obstack_grow (&collect_obstack
, q
, p
- q
);
4365 obstack_grow (&collect_obstack
, "'\\''", 4);
4368 obstack_grow (&collect_obstack
, q
, strlen (q
));
4369 obstack_grow (&collect_obstack
, "'", 1);
4372 obstack_grow (&collect_obstack
, "\0", 1);
4373 xputenv (XOBFINISH (&collect_obstack
, char *));
4376 /* Process a spec string, accumulating and running commands. */
4378 /* These variables describe the input file name.
4379 input_file_number is the index on outfiles of this file,
4380 so that the output file name can be stored for later use by %o.
4381 input_basename is the start of the part of the input file
4382 sans all directory names, and basename_length is the number
4383 of characters starting there excluding the suffix .c or whatever. */
4385 static const char *input_filename
;
4386 static int input_file_number
;
4387 size_t input_filename_length
;
4388 static int basename_length
;
4389 static int suffixed_basename_length
;
4390 static const char *input_basename
;
4391 static const char *input_suffix
;
4392 #ifndef HOST_LACKS_INODE_NUMBERS
4393 static struct stat input_stat
;
4395 static int input_stat_set
;
4397 /* The compiler used to process the current input file. */
4398 static struct compiler
*input_file_compiler
;
4400 /* These are variables used within do_spec and do_spec_1. */
4402 /* Nonzero if an arg has been started and not yet terminated
4403 (with space, tab or newline). */
4404 static int arg_going
;
4406 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4407 is a temporary file name. */
4408 static int delete_this_arg
;
4410 /* Nonzero means %w has been seen; the next arg to be terminated
4411 is the output file name of this compilation. */
4412 static int this_is_output_file
;
4414 /* Nonzero means %s has been seen; the next arg to be terminated
4415 is the name of a library file and we should try the standard
4416 search dirs for it. */
4417 static int this_is_library_file
;
4419 /* Nonzero means that the input of this command is coming from a pipe. */
4420 static int input_from_pipe
;
4422 /* Nonnull means substitute this for any suffix when outputting a switches
4424 static const char *suffix_subst
;
4426 /* If there is an argument being accumulated, terminate it and store it. */
4429 end_going_arg (void)
4435 obstack_1grow (&obstack
, 0);
4436 string
= XOBFINISH (&obstack
, const char *);
4437 if (this_is_library_file
)
4438 string
= find_file (string
);
4439 store_arg (string
, delete_this_arg
, this_is_output_file
);
4440 if (this_is_output_file
)
4441 outfiles
[input_file_number
] = string
;
4447 /* Parse the WRAPPER string which is a comma separated list of the command line
4448 and insert them into the beginning of argbuf. */
4451 insert_wrapper (const char *wrapper
)
4455 char *buf
= xstrdup (wrapper
);
4464 while ((p
= strchr (p
, ',')) != NULL
);
4466 if (argbuf_index
+ n
>= argbuf_length
)
4468 argbuf_length
= argbuf_length
* 2;
4469 while (argbuf_length
< argbuf_index
+ n
)
4471 argbuf
= xrealloc (argbuf
, argbuf_length
* sizeof (const char *));
4473 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4474 argbuf
[i
+ n
] = argbuf
[i
];
4487 while ((p
= strchr (p
, ',')) != NULL
);
4488 gcc_assert (i
== n
);
4492 /* Process the spec SPEC and run the commands specified therein.
4493 Returns 0 if the spec is successfully processed; -1 if failed. */
4496 do_spec (const char *spec
)
4500 value
= do_spec_2 (spec
);
4502 /* Force out any unfinished command.
4503 If -pipe, this forces out the last command if it ended in `|'. */
4506 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4509 set_collect_gcc_options ();
4511 if (argbuf_index
> 0)
4519 do_spec_2 (const char *spec
)
4525 delete_this_arg
= 0;
4526 this_is_output_file
= 0;
4527 this_is_library_file
= 0;
4528 input_from_pipe
= 0;
4529 suffix_subst
= NULL
;
4531 result
= do_spec_1 (spec
, 0, NULL
);
4539 /* Process the given spec string and add any new options to the end
4540 of the switches/n_switches array. */
4543 do_option_spec (const char *name
, const char *spec
)
4545 unsigned int i
, value_count
, value_len
;
4546 const char *p
, *q
, *value
;
4547 char *tmp_spec
, *tmp_spec_p
;
4549 if (configure_default_options
[0].name
== NULL
)
4552 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4553 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4555 if (i
== ARRAY_SIZE (configure_default_options
))
4558 value
= configure_default_options
[i
].value
;
4559 value_len
= strlen (value
);
4561 /* Compute the size of the final spec. */
4564 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4570 /* Replace each %(VALUE) by the specified value. */
4571 tmp_spec
= alloca (strlen (spec
) + 1
4572 + value_count
* (value_len
- strlen ("%(VALUE)")));
4573 tmp_spec_p
= tmp_spec
;
4575 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4577 memcpy (tmp_spec_p
, q
, p
- q
);
4578 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4579 memcpy (tmp_spec_p
, value
, value_len
);
4580 tmp_spec_p
+= value_len
;
4581 q
= p
+ strlen ("%(VALUE)");
4583 strcpy (tmp_spec_p
, q
);
4585 do_self_spec (tmp_spec
);
4588 /* Process the given spec string and add any new options to the end
4589 of the switches/n_switches array. */
4592 do_self_spec (const char *spec
)
4595 do_spec_1 (" ", 0, NULL
);
4597 if (argbuf_index
> 0)
4602 n_switches
+= argbuf_index
;
4603 switches
= xrealloc (switches
,
4604 sizeof (struct switchstr
) * (n_switches
+ 1));
4606 switches
[n_switches
] = switches
[first
];
4607 for (i
= 0; i
< argbuf_index
; i
++)
4609 struct switchstr
*sw
;
4611 /* Each switch should start with '-'. */
4612 if (argbuf
[i
][0] != '-')
4613 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4615 sw
= &switches
[i
+ first
];
4616 sw
->part1
= &argbuf
[i
][1];
4625 /* Callback for processing %D and %I specs. */
4627 struct spec_path_info
{
4632 bool separate_options
;
4636 spec_path (char *path
, void *data
)
4638 struct spec_path_info
*info
= data
;
4642 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4645 if (info
->append_len
!= 0)
4647 len
= strlen (path
);
4648 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4651 if (!is_directory (path
, true))
4654 do_spec_1 (info
->option
, 1, NULL
);
4655 if (info
->separate_options
)
4656 do_spec_1 (" ", 0, NULL
);
4658 if (info
->append_len
== 0)
4660 len
= strlen (path
);
4661 save
= path
[len
- 1];
4662 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4663 path
[len
- 1] = '\0';
4666 do_spec_1 (path
, 1, NULL
);
4667 do_spec_1 (" ", 0, NULL
);
4669 /* Must not damage the original path. */
4670 if (info
->append_len
== 0)
4671 path
[len
- 1] = save
;
4676 /* Process the sub-spec SPEC as a portion of a larger spec.
4677 This is like processing a whole spec except that we do
4678 not initialize at the beginning and we do not supply a
4679 newline by default at the end.
4680 INSWITCH nonzero means don't process %-sequences in SPEC;
4681 in this case, % is treated as an ordinary character.
4682 This is used while substituting switches.
4683 INSWITCH nonzero also causes SPC not to terminate an argument.
4685 Value is zero unless a line was finished
4686 and the command on that line reported an error. */
4689 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4691 const char *p
= spec
;
4697 /* If substituting a switch, treat all chars like letters.
4698 Otherwise, NL, SPC, TAB and % are special. */
4699 switch (inswitch
? 'a' : c
)
4704 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4706 /* A `|' before the newline means use a pipe here,
4707 but only if -pipe was specified.
4708 Otherwise, execute now and don't pass the `|' as an arg. */
4711 input_from_pipe
= 1;
4718 set_collect_gcc_options ();
4720 if (argbuf_index
> 0)
4726 /* Reinitialize for a new command, and for a new argument. */
4729 delete_this_arg
= 0;
4730 this_is_output_file
= 0;
4731 this_is_library_file
= 0;
4732 input_from_pipe
= 0;
4739 obstack_1grow (&obstack
, c
);
4747 /* Reinitialize for a new argument. */
4748 delete_this_arg
= 0;
4749 this_is_output_file
= 0;
4750 this_is_library_file
= 0;
4757 fatal ("spec '%s' invalid", spec
);
4760 obstack_grow (&obstack
, input_basename
, basename_length
);
4765 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4770 delete_this_arg
= 2;
4773 /* Dump out the directories specified with LIBRARY_PATH,
4774 followed by the absolute directories
4775 that we search for startfiles. */
4778 struct spec_path_info info
;
4781 info
.append_len
= 0;
4782 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4783 /* Used on systems which record the specified -L dirs
4784 and use them to search for dynamic linking.
4785 Relative directories always come from -B,
4786 and it is better not to use them for searching
4787 at run time. In particular, stage1 loses. */
4788 info
.omit_relative
= true;
4790 info
.omit_relative
= false;
4792 info
.separate_options
= false;
4794 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4799 /* %efoo means report an error with `foo' as error message
4800 and don't execute any more commands for this file. */
4804 while (*p
!= 0 && *p
!= '\n')
4806 buf
= alloca (p
- q
+ 1);
4807 strncpy (buf
, q
, p
- q
);
4814 /* %nfoo means report a notice with `foo' on stderr. */
4818 while (*p
!= 0 && *p
!= '\n')
4820 buf
= alloca (p
- q
+ 1);
4821 strncpy (buf
, q
, p
- q
);
4823 notice ("%s\n", buf
);
4833 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4834 defined, and it is not a directory, and it is
4835 writable, use it. Otherwise, treat this like any
4836 other temporary file. */
4838 if ((!save_temps_flag
)
4839 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4840 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4842 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4843 strlen (HOST_BIT_BUCKET
));
4844 delete_this_arg
= 0;
4849 goto create_temp_file
;
4853 obstack_1grow (&obstack
, '-');
4854 delete_this_arg
= 0;
4857 /* consume suffix */
4858 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4860 if (p
[0] == '%' && p
[1] == 'O')
4865 goto create_temp_file
;
4869 /* consume suffix */
4870 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4872 if (p
[0] == '%' && p
[1] == 'O')
4877 goto create_temp_file
;
4883 struct temp_name
*t
;
4885 const char *suffix
= p
;
4886 char *saved_suffix
= NULL
;
4888 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4890 suffix_length
= p
- suffix
;
4891 if (p
[0] == '%' && p
[1] == 'O')
4894 /* We don't support extra suffix characters after %O. */
4895 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4896 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4897 if (suffix_length
== 0)
4898 suffix
= TARGET_OBJECT_SUFFIX
;
4902 = XNEWVEC (char, suffix_length
4903 + strlen (TARGET_OBJECT_SUFFIX
));
4904 strncpy (saved_suffix
, suffix
, suffix_length
);
4905 strcpy (saved_suffix
+ suffix_length
,
4906 TARGET_OBJECT_SUFFIX
);
4908 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4911 /* If the input_filename has the same suffix specified
4912 for the %g, %u, or %U, and -save-temps is specified,
4913 we could end up using that file as an intermediate
4914 thus clobbering the user's source file (.e.g.,
4915 gcc -save-temps foo.s would clobber foo.s with the
4916 output of cpp0). So check for this condition and
4917 generate a temp file as the intermediate. */
4919 if (save_temps_flag
)
4923 temp_filename_length
= basename_length
+ suffix_length
;
4924 tmp
= alloca (temp_filename_length
+ 1);
4925 strncpy (tmp
, input_basename
, basename_length
);
4926 strncpy (tmp
+ basename_length
, suffix
, suffix_length
);
4927 tmp
[temp_filename_length
] = '\0';
4928 temp_filename
= tmp
;
4929 if (strcmp (temp_filename
, input_filename
) != 0)
4931 #ifndef HOST_LACKS_INODE_NUMBERS
4932 struct stat st_temp
;
4934 /* Note, set_input() resets input_stat_set to 0. */
4935 if (input_stat_set
== 0)
4937 input_stat_set
= stat (input_filename
, &input_stat
);
4938 if (input_stat_set
>= 0)
4942 /* If we have the stat for the input_filename
4943 and we can do the stat for the temp_filename
4944 then the they could still refer to the same
4945 file if st_dev/st_ino's are the same. */
4946 if (input_stat_set
!= 1
4947 || stat (temp_filename
, &st_temp
) < 0
4948 || input_stat
.st_dev
!= st_temp
.st_dev
4949 || input_stat
.st_ino
!= st_temp
.st_ino
)
4951 /* Just compare canonical pathnames. */
4952 char* input_realname
= lrealpath (input_filename
);
4953 char* temp_realname
= lrealpath (temp_filename
);
4954 bool files_differ
= strcmp (input_realname
, temp_realname
);
4955 free (input_realname
);
4956 free (temp_realname
);
4960 temp_filename
= save_string (temp_filename
,
4961 temp_filename_length
+ 1);
4962 obstack_grow (&obstack
, temp_filename
,
4963 temp_filename_length
);
4965 delete_this_arg
= 0;
4971 /* See if we already have an association of %g/%u/%U and
4973 for (t
= temp_names
; t
; t
= t
->next
)
4974 if (t
->length
== suffix_length
4975 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4976 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4979 /* Make a new association if needed. %u and %j
4981 if (t
== 0 || c
== 'u' || c
== 'j')
4985 t
= xmalloc (sizeof (struct temp_name
));
4986 t
->next
= temp_names
;
4989 t
->length
= suffix_length
;
4992 t
->suffix
= saved_suffix
;
4993 saved_suffix
= NULL
;
4996 t
->suffix
= save_string (suffix
, suffix_length
);
4997 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4998 temp_filename
= make_temp_file (t
->suffix
);
4999 temp_filename_length
= strlen (temp_filename
);
5000 t
->filename
= temp_filename
;
5001 t
->filename_length
= temp_filename_length
;
5005 free (saved_suffix
);
5007 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5008 delete_this_arg
= 1;
5016 for (i
= 0; (int) i
< n_infiles
; i
++)
5017 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
5018 if (infiles
[i
].incompiler
== input_file_compiler
)
5020 store_arg (infiles
[i
].name
, 0, 0);
5021 infiles
[i
].compiled
= true;
5026 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5033 struct spec_path_info info
;
5037 do_spec_1 ("-imultilib", 1, NULL
);
5038 /* Make this a separate argument. */
5039 do_spec_1 (" ", 0, NULL
);
5040 do_spec_1 (multilib_dir
, 1, NULL
);
5041 do_spec_1 (" ", 0, NULL
);
5044 if (gcc_exec_prefix
)
5046 do_spec_1 ("-iprefix", 1, NULL
);
5047 /* Make this a separate argument. */
5048 do_spec_1 (" ", 0, NULL
);
5049 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5050 do_spec_1 (" ", 0, NULL
);
5053 if (target_system_root_changed
||
5054 (target_system_root
&& target_sysroot_hdrs_suffix
))
5056 do_spec_1 ("-isysroot", 1, NULL
);
5057 /* Make this a separate argument. */
5058 do_spec_1 (" ", 0, NULL
);
5059 do_spec_1 (target_system_root
, 1, NULL
);
5060 if (target_sysroot_hdrs_suffix
)
5061 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5062 do_spec_1 (" ", 0, NULL
);
5065 info
.option
= "-isystem";
5066 info
.append
= "include";
5067 info
.append_len
= strlen (info
.append
);
5068 info
.omit_relative
= false;
5069 info
.separate_options
= true;
5071 for_each_path (&include_prefixes
, false, info
.append_len
,
5074 info
.append
= "include-fixed";
5075 if (*sysroot_hdrs_suffix_spec
)
5076 info
.append
= concat (info
.append
, dir_separator_str
,
5077 multilib_dir
, NULL
);
5078 info
.append_len
= strlen (info
.append
);
5079 for_each_path (&include_prefixes
, false, info
.append_len
,
5086 int max
= n_infiles
;
5087 max
+= lang_specific_extra_outfiles
;
5089 if (HAVE_GNU_LD
&& at_file_supplied
)
5091 /* We are going to expand `%o' to `@FILE', where FILE
5092 is a newly-created temporary filename. The filenames
5093 that would usually be expanded in place of %o will be
5094 written to the temporary file. */
5096 char *temp_file
= make_temp_file ("");
5099 int n_files
, j
, status
;
5102 at_argument
= concat ("@", temp_file
, NULL
);
5103 store_arg (at_argument
, 0, 0);
5105 /* Convert OUTFILES into a form suitable for writeargv. */
5107 /* Determine how many are non-NULL. */
5108 for (n_files
= 0, i
= 0; i
< max
; i
++)
5109 n_files
+= outfiles
[i
] != NULL
;
5111 argv
= alloca (sizeof (char *) * (n_files
+ 1));
5113 /* Copy the strings over. */
5114 for (i
= 0, j
= 0; i
< max
; i
++)
5117 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5122 f
= fopen (temp_file
, "w");
5125 fatal ("could not open temporary response file %s",
5128 status
= writeargv (argv
, f
);
5131 fatal ("could not write to temporary response file %s",
5134 status
= fclose (f
);
5137 fatal ("could not close temporary response file %s",
5140 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5143 for (i
= 0; i
< max
; i
++)
5145 store_arg (outfiles
[i
], 0, 0);
5150 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5155 this_is_library_file
= 1;
5159 outfiles
[input_file_number
] = NULL
;
5163 this_is_output_file
= 1;
5168 int cur_index
= argbuf_index
;
5169 /* Handle the {...} following the %W. */
5171 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5172 p
= handle_braces (p
+ 1);
5176 /* If any args were output, mark the last one for deletion
5178 if (argbuf_index
!= cur_index
)
5179 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5183 /* %x{OPTION} records OPTION for %X to output. */
5189 /* Skip past the option value and make a copy. */
5191 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5194 string
= save_string (p1
+ 1, p
- p1
- 2);
5196 /* See if we already recorded this option. */
5197 for (i
= 0; i
< n_linker_options
; i
++)
5198 if (! strcmp (string
, linker_options
[i
]))
5204 /* This option is new; add it. */
5205 add_linker_option (string
, strlen (string
));
5209 /* Dump out the options accumulated previously using %x. */
5211 for (i
= 0; i
< n_linker_options
; i
++)
5213 do_spec_1 (linker_options
[i
], 1, NULL
);
5214 /* Make each accumulated option a separate argument. */
5215 do_spec_1 (" ", 0, NULL
);
5219 /* Dump out the options accumulated previously using -Wa,. */
5221 for (i
= 0; i
< n_assembler_options
; i
++)
5223 do_spec_1 (assembler_options
[i
], 1, NULL
);
5224 /* Make each accumulated option a separate argument. */
5225 do_spec_1 (" ", 0, NULL
);
5229 /* Dump out the options accumulated previously using -Wp,. */
5231 for (i
= 0; i
< n_preprocessor_options
; i
++)
5233 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5234 /* Make each accumulated option a separate argument. */
5235 do_spec_1 (" ", 0, NULL
);
5239 /* Here are digits and numbers that just process
5240 a certain constant string as a spec. */
5243 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5249 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5255 value
= do_spec_1 (asm_spec
, 0, NULL
);
5261 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5268 const char *const spec
5269 = (input_file_compiler
->cpp_spec
5270 ? input_file_compiler
->cpp_spec
5272 value
= do_spec_1 (spec
, 0, NULL
);
5279 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5285 value
= do_spec_1 (link_spec
, 0, NULL
);
5291 value
= do_spec_1 (lib_spec
, 0, NULL
);
5297 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5303 /* We assume there is a directory
5304 separator at the end of this string. */
5305 if (target_system_root
)
5307 obstack_grow (&obstack
, target_system_root
,
5308 strlen (target_system_root
));
5309 if (target_sysroot_suffix
)
5310 obstack_grow (&obstack
, target_sysroot_suffix
,
5311 strlen (target_sysroot_suffix
));
5316 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5321 /* Here we define characters other than letters and digits. */
5324 p
= handle_braces (p
);
5330 p
= handle_spec_function (p
);
5336 obstack_1grow (&obstack
, '%');
5343 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5345 suffix_subst
= save_string (p
- 1, len
+ 1);
5350 /* Henceforth ignore the option(s) matching the pattern
5355 int have_wildcard
= 0;
5358 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5361 if (p
[len
-1] == '*')
5364 for (i
= 0; i
< n_switches
; i
++)
5365 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5366 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5368 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5369 switches
[i
].validated
= 1;
5377 if (soft_matched_part
)
5379 do_spec_1 (soft_matched_part
, 1, NULL
);
5380 do_spec_1 (" ", 0, NULL
);
5383 /* Catch the case where a spec string contains something like
5384 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5385 hand side of the :. */
5386 error ("spec failure: '%%*' has not been initialized by pattern match");
5389 /* Process a string found as the value of a spec given by name.
5390 This feature allows individual machine descriptions
5391 to add and use their own specs.
5392 %[...] modifies -D options the way %P does;
5393 %(...) uses the spec unmodified. */
5395 error ("warning: use of obsolete %%[ operator in specs");
5398 const char *name
= p
;
5399 struct spec_list
*sl
;
5402 /* The string after the S/P is the name of a spec that is to be
5404 while (*p
&& *p
!= ')' && *p
!= ']')
5407 /* See if it's in the list. */
5408 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5409 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5411 name
= *(sl
->ptr_spec
);
5413 notice ("Processing spec %c%s%c, which is '%s'\n",
5414 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5423 value
= do_spec_1 (name
, 0, NULL
);
5429 char *x
= alloca (strlen (name
) * 2 + 1);
5431 const char *y
= name
;
5434 /* Copy all of NAME into BUF, but put __ after
5435 every -D and at the end of each arg. */
5438 if (! strncmp (y
, "-D", 2))
5449 && (*y
== ' ' || *y
== '\t' || *y
== '='
5450 || *y
== '}' || *y
== 0))
5463 value
= do_spec_1 (buf
, 0, NULL
);
5469 /* Discard the closing paren or bracket. */
5476 error ("spec failure: unrecognized spec option '%c'", c
);
5482 /* Backslash: treat next character as ordinary. */
5487 /* Ordinary character: put it into the current argument. */
5488 obstack_1grow (&obstack
, c
);
5492 /* End of string. If we are processing a spec function, we need to
5493 end any pending argument. */
5494 if (processing_spec_function
)
5500 /* Look up a spec function. */
5502 static const struct spec_function
*
5503 lookup_spec_function (const char *name
)
5505 const struct spec_function
*sf
;
5507 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5508 if (strcmp (sf
->name
, name
) == 0)
5514 /* Evaluate a spec function. */
5517 eval_spec_function (const char *func
, const char *args
)
5519 const struct spec_function
*sf
;
5520 const char *funcval
;
5522 /* Saved spec processing context. */
5523 int save_argbuf_index
;
5524 int save_argbuf_length
;
5525 const char **save_argbuf
;
5528 int save_delete_this_arg
;
5529 int save_this_is_output_file
;
5530 int save_this_is_library_file
;
5531 int save_input_from_pipe
;
5532 const char *save_suffix_subst
;
5535 sf
= lookup_spec_function (func
);
5537 fatal ("unknown spec function '%s'", func
);
5539 /* Push the spec processing context. */
5540 save_argbuf_index
= argbuf_index
;
5541 save_argbuf_length
= argbuf_length
;
5542 save_argbuf
= argbuf
;
5544 save_arg_going
= arg_going
;
5545 save_delete_this_arg
= delete_this_arg
;
5546 save_this_is_output_file
= this_is_output_file
;
5547 save_this_is_library_file
= this_is_library_file
;
5548 save_input_from_pipe
= input_from_pipe
;
5549 save_suffix_subst
= suffix_subst
;
5551 /* Create a new spec processing context, and build the function
5555 if (do_spec_2 (args
) < 0)
5556 fatal ("error in args to spec function '%s'", func
);
5558 /* argbuf_index is an index for the next argument to be inserted, and
5559 so contains the count of the args already inserted. */
5561 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5563 /* Pop the spec processing context. */
5564 argbuf_index
= save_argbuf_index
;
5565 argbuf_length
= save_argbuf_length
;
5567 argbuf
= save_argbuf
;
5569 arg_going
= save_arg_going
;
5570 delete_this_arg
= save_delete_this_arg
;
5571 this_is_output_file
= save_this_is_output_file
;
5572 this_is_library_file
= save_this_is_library_file
;
5573 input_from_pipe
= save_input_from_pipe
;
5574 suffix_subst
= save_suffix_subst
;
5579 /* Handle a spec function call of the form:
5583 ARGS is processed as a spec in a separate context and split into an
5584 argument vector in the normal fashion. The function returns a string
5585 containing a spec which we then process in the caller's context, or
5586 NULL if no processing is required. */
5589 handle_spec_function (const char *p
)
5592 const char *endp
, *funcval
;
5595 processing_spec_function
++;
5597 /* Get the function name. */
5598 for (endp
= p
; *endp
!= '\0'; endp
++)
5600 if (*endp
== '(') /* ) */
5602 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5603 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5604 fatal ("malformed spec function name");
5606 if (*endp
!= '(') /* ) */
5607 fatal ("no arguments for spec function");
5608 func
= save_string (p
, endp
- p
);
5611 /* Get the arguments. */
5612 for (count
= 0; *endp
!= '\0'; endp
++)
5621 else if (*endp
== '(') /* ) */
5626 fatal ("malformed spec function arguments");
5627 args
= save_string (p
, endp
- p
);
5630 /* p now points to just past the end of the spec function expression. */
5632 funcval
= eval_spec_function (func
, args
);
5633 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5639 processing_spec_function
--;
5644 /* Inline subroutine of handle_braces. Returns true if the current
5645 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5647 input_suffix_matches (const char *atom
, const char *end_atom
)
5649 return (input_suffix
5650 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5651 && input_suffix
[end_atom
- atom
] == '\0');
5654 /* Subroutine of handle_braces. Returns true if the current
5655 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5657 input_spec_matches (const char *atom
, const char *end_atom
)
5659 return (input_file_compiler
5660 && input_file_compiler
->suffix
5661 && input_file_compiler
->suffix
[0] != '\0'
5662 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5664 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5667 /* Subroutine of handle_braces. Returns true if a switch
5668 matching the atom bracketed by ATOM and END_ATOM appeared on the
5671 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5674 int len
= end_atom
- atom
;
5675 int plen
= starred
? len
: -1;
5677 for (i
= 0; i
< n_switches
; i
++)
5678 if (!strncmp (switches
[i
].part1
, atom
, len
)
5679 && (starred
|| switches
[i
].part1
[len
] == '\0')
5680 && check_live_switch (i
, plen
))
5686 /* Inline subroutine of handle_braces. Mark all of the switches which
5687 match ATOM (extends to END_ATOM; STARRED indicates whether there
5688 was a star after the atom) for later processing. */
5690 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5693 int len
= end_atom
- atom
;
5694 int plen
= starred
? len
: -1;
5696 for (i
= 0; i
< n_switches
; i
++)
5697 if (!strncmp (switches
[i
].part1
, atom
, len
)
5698 && (starred
|| switches
[i
].part1
[len
] == '\0')
5699 && check_live_switch (i
, plen
))
5700 switches
[i
].ordering
= 1;
5703 /* Inline subroutine of handle_braces. Process all the currently
5704 marked switches through give_switch, and clear the marks. */
5706 process_marked_switches (void)
5710 for (i
= 0; i
< n_switches
; i
++)
5711 if (switches
[i
].ordering
== 1)
5713 switches
[i
].ordering
= 0;
5718 /* Handle a %{ ... } construct. P points just inside the leading {.
5719 Returns a pointer one past the end of the brace block, or 0
5720 if we call do_spec_1 and that returns -1. */
5723 handle_braces (const char *p
)
5725 const char *atom
, *end_atom
;
5726 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5727 const char *orig
= p
;
5735 bool a_must_be_last
= false;
5736 bool ordered_set
= false;
5737 bool disjunct_set
= false;
5738 bool disj_matched
= false;
5739 bool disj_starred
= true;
5740 bool n_way_choice
= false;
5741 bool n_way_matched
= false;
5743 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5750 /* Scan one "atom" (S in the description above of %{}, possibly
5751 with '!', '.', '@', ',', or '*' modifiers). */
5753 a_is_suffix
= false;
5754 a_is_starred
= false;
5755 a_is_negated
= false;
5756 a_is_spectype
= false;
5760 p
++, a_is_negated
= true;
5764 p
++, a_is_suffix
= true;
5766 p
++, a_is_spectype
= true;
5769 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5770 || *p
== ',' || *p
== '.' || *p
== '@')
5775 p
++, a_is_starred
= 1;
5781 /* Substitute the switch(es) indicated by the current atom. */
5783 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5784 || a_is_spectype
|| atom
== end_atom
)
5787 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5790 process_marked_switches ();
5794 /* Substitute some text if the current atom appears as a switch
5796 disjunct_set
= true;
5800 if (atom
== end_atom
)
5802 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5803 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5807 /* An empty term may appear as the last choice of an
5808 N-way choice set; it means "otherwise". */
5809 a_must_be_last
= true;
5810 disj_matched
= !n_way_matched
;
5811 disj_starred
= false;
5815 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5819 disj_starred
= false;
5821 /* Don't bother testing this atom if we already have a
5823 if (!disj_matched
&& !n_way_matched
)
5826 a_matched
= input_suffix_matches (atom
, end_atom
);
5827 else if (a_is_spectype
)
5828 a_matched
= input_spec_matches (atom
, end_atom
);
5830 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5832 if (a_matched
!= a_is_negated
)
5834 disj_matched
= true;
5836 d_end_atom
= end_atom
;
5843 /* Found the body, that is, the text to substitute if the
5844 current disjunction matches. */
5845 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5846 disj_matched
&& !n_way_matched
);
5850 /* If we have an N-way choice, reset state for the next
5854 n_way_choice
= true;
5855 n_way_matched
|= disj_matched
;
5856 disj_matched
= false;
5857 disj_starred
= true;
5858 d_atom
= d_end_atom
= NULL
;
5867 while (*p
++ != '}');
5872 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5877 /* Subroutine of handle_braces. Scan and process a brace substitution body
5878 (X in the description of %{} syntax). P points one past the colon;
5879 ATOM and END_ATOM bracket the first atom which was found to be true
5880 (present) in the current disjunction; STARRED indicates whether all
5881 the atoms in the current disjunction were starred (for syntax validation);
5882 MATCHED indicates whether the disjunction matched or not, and therefore
5883 whether or not the body is to be processed through do_spec_1 or just
5884 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5888 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5889 int starred
, int matched
)
5891 const char *body
, *end_body
;
5892 unsigned int nesting_level
;
5893 bool have_subst
= false;
5895 /* Locate the closing } or ;, honoring nested braces.
5896 Trim trailing whitespace. */
5905 if (!--nesting_level
)
5908 else if (*p
== ';' && nesting_level
== 1)
5910 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5912 else if (*p
== '\0')
5918 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5921 if (have_subst
&& !starred
)
5926 /* Copy the substitution body to permanent storage and execute it.
5927 If have_subst is false, this is a simple matter of running the
5928 body through do_spec_1... */
5929 char *string
= save_string (body
, end_body
- body
);
5932 if (do_spec_1 (string
, 0, NULL
) < 0)
5937 /* ... but if have_subst is true, we have to process the
5938 body once for each matching switch, with %* set to the
5939 variant part of the switch. */
5940 unsigned int hard_match_len
= end_atom
- atom
;
5943 for (i
= 0; i
< n_switches
; i
++)
5944 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5945 && check_live_switch (i
, hard_match_len
))
5947 if (do_spec_1 (string
, 0,
5948 &switches
[i
].part1
[hard_match_len
]) < 0)
5950 /* Pass any arguments this switch has. */
5952 suffix_subst
= NULL
;
5960 fatal ("braced spec body '%s' is invalid", body
);
5963 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5964 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5965 spec, or -1 if either exact match or %* is used.
5967 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5968 whose value does not begin with "no-" is obsoleted by the same value
5969 with the "no-", similarly for a switch with the "no-" prefix. */
5972 check_live_switch (int switchnum
, int prefix_length
)
5974 const char *name
= switches
[switchnum
].part1
;
5977 /* In the common case of {<at-most-one-letter>*}, a negating
5978 switch would always match, so ignore that case. We will just
5979 send the conflicting switches to the compiler phase. */
5980 if (prefix_length
>= 0 && prefix_length
<= 1)
5983 /* If we already processed this switch and determined if it was
5984 live or not, return our past determination. */
5985 if (switches
[switchnum
].live_cond
!= 0)
5986 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5987 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0);
5989 /* Now search for duplicate in a manner that depends on the name. */
5993 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5994 if (switches
[i
].part1
[0] == 'O')
5996 switches
[switchnum
].validated
= 1;
5997 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6002 case 'W': case 'f': case 'm':
6003 if (! strncmp (name
+ 1, "no-", 3))
6005 /* We have Xno-YYY, search for XYYY. */
6006 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6007 if (switches
[i
].part1
[0] == name
[0]
6008 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6010 switches
[switchnum
].validated
= 1;
6011 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6017 /* We have XYYY, search for Xno-YYY. */
6018 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6019 if (switches
[i
].part1
[0] == name
[0]
6020 && switches
[i
].part1
[1] == 'n'
6021 && switches
[i
].part1
[2] == 'o'
6022 && switches
[i
].part1
[3] == '-'
6023 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6025 switches
[switchnum
].validated
= 1;
6026 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6033 /* Otherwise the switch is live. */
6034 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6038 /* Pass a switch to the current accumulating command
6039 in the same form that we received it.
6040 SWITCHNUM identifies the switch; it is an index into
6041 the vector of switches gcc received, which is `switches'.
6042 This cannot fail since it never finishes a command line.
6044 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6047 give_switch (int switchnum
, int omit_first_word
)
6049 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6052 if (!omit_first_word
)
6054 do_spec_1 ("-", 0, NULL
);
6055 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6058 if (switches
[switchnum
].args
!= 0)
6061 for (p
= switches
[switchnum
].args
; *p
; p
++)
6063 const char *arg
= *p
;
6065 do_spec_1 (" ", 0, NULL
);
6068 unsigned length
= strlen (arg
);
6071 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6072 if (arg
[length
] == '.')
6074 (CONST_CAST(char *, arg
))[length
] = 0;
6078 do_spec_1 (arg
, 1, NULL
);
6080 (CONST_CAST(char *, arg
))[length
] = '.';
6081 do_spec_1 (suffix_subst
, 1, NULL
);
6084 do_spec_1 (arg
, 1, NULL
);
6088 do_spec_1 (" ", 0, NULL
);
6089 switches
[switchnum
].validated
= 1;
6092 /* Search for a file named NAME trying various prefixes including the
6093 user's -B prefix and some standard ones.
6094 Return the absolute file name found. If nothing is found, return NAME. */
6097 find_file (const char *name
)
6099 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6100 return newname
? newname
: name
;
6103 /* Determine whether a directory exists. If LINKER, return 0 for
6104 certain fixed names not needed by the linker. */
6107 is_directory (const char *path1
, bool linker
)
6114 /* Ensure the string ends with "/.". The resulting path will be a
6115 directory even if the given path is a symbolic link. */
6116 len1
= strlen (path1
);
6117 path
= alloca (3 + len1
);
6118 memcpy (path
, path1
, len1
);
6120 if (!IS_DIR_SEPARATOR (cp
[-1]))
6121 *cp
++ = DIR_SEPARATOR
;
6125 /* Exclude directories that the linker is known to search. */
6127 && IS_DIR_SEPARATOR (path
[0])
6129 && strncmp (path
+ 1, "lib", 3) == 0)
6131 && strncmp (path
+ 1, "usr", 3) == 0
6132 && IS_DIR_SEPARATOR (path
[4])
6133 && strncmp (path
+ 5, "lib", 3) == 0)))
6136 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6139 /* Set up the various global variables to indicate that we're processing
6140 the input file named FILENAME. */
6143 set_input (const char *filename
)
6147 input_filename
= filename
;
6148 input_filename_length
= strlen (input_filename
);
6150 input_basename
= input_filename
;
6151 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6152 /* Skip drive name so 'x:foo' is handled properly. */
6153 if (input_basename
[1] == ':')
6154 input_basename
+= 2;
6156 for (p
= input_basename
; *p
; p
++)
6157 if (IS_DIR_SEPARATOR (*p
))
6158 input_basename
= p
+ 1;
6160 /* Find a suffix starting with the last period,
6161 and set basename_length to exclude that suffix. */
6162 basename_length
= strlen (input_basename
);
6163 suffixed_basename_length
= basename_length
;
6164 p
= input_basename
+ basename_length
;
6165 while (p
!= input_basename
&& *p
!= '.')
6167 if (*p
== '.' && p
!= input_basename
)
6169 basename_length
= p
- input_basename
;
6170 input_suffix
= p
+ 1;
6175 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6176 we will need to do a stat on the input_filename. The
6177 INPUT_STAT_SET signals that the stat is needed. */
6181 /* On fatal signals, delete all the temporary files. */
6184 fatal_error (int signum
)
6186 signal (signum
, SIG_DFL
);
6187 delete_failure_queue ();
6188 delete_temp_files ();
6189 /* Get the same signal again, this time not handled,
6190 so its normal effect occurs. */
6191 kill (getpid (), signum
);
6194 extern int main (int, char **);
6197 main (int argc
, char **argv
)
6201 int linker_was_run
= 0;
6202 int lang_n_infiles
= 0;
6203 int num_linker_inputs
= 0;
6204 char *explicit_link_files
;
6207 struct user_specs
*uptr
;
6208 char **old_argv
= argv
;
6210 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6211 on ?: in file-scope variable initializations. */
6212 asm_debug
= ASM_DEBUG_SPEC
;
6214 p
= argv
[0] + strlen (argv
[0]);
6215 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6219 xmalloc_set_program_name (programname
);
6221 expandargv (&argc
, &argv
);
6223 /* Determine if any expansions were made. */
6224 if (argv
!= old_argv
)
6225 at_file_supplied
= true;
6227 prune_options (&argc
, &argv
);
6229 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6230 /* Perform host dependent initialization when needed. */
6231 GCC_DRIVER_HOST_INITIALIZATION
;
6234 /* Unlock the stdio streams. */
6235 unlock_std_streams ();
6237 gcc_init_libintl ();
6239 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6240 signal (SIGINT
, fatal_error
);
6242 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6243 signal (SIGHUP
, fatal_error
);
6245 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6246 signal (SIGTERM
, fatal_error
);
6248 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6249 signal (SIGPIPE
, fatal_error
);
6252 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6253 receive the signal. A different setting is inheritable */
6254 signal (SIGCHLD
, SIG_DFL
);
6257 /* Allocate the argument vector. */
6260 obstack_init (&obstack
);
6262 /* Build multilib_select, et. al from the separate lines that make up each
6263 multilib selection. */
6265 const char *const *q
= multilib_raw
;
6268 obstack_init (&multilib_obstack
);
6269 while ((p
= *q
++) != (char *) 0)
6270 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6272 obstack_1grow (&multilib_obstack
, 0);
6273 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6275 q
= multilib_matches_raw
;
6276 while ((p
= *q
++) != (char *) 0)
6277 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6279 obstack_1grow (&multilib_obstack
, 0);
6280 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6282 q
= multilib_exclusions_raw
;
6283 while ((p
= *q
++) != (char *) 0)
6284 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6286 obstack_1grow (&multilib_obstack
, 0);
6287 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6290 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6293 obstack_1grow (&multilib_obstack
, ' ');
6294 obstack_grow (&multilib_obstack
,
6295 multilib_defaults_raw
[i
],
6296 strlen (multilib_defaults_raw
[i
]));
6300 obstack_1grow (&multilib_obstack
, 0);
6301 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6304 /* Set up to remember the pathname of gcc and any options
6305 needed for collect. We use argv[0] instead of programname because
6306 we need the complete pathname. */
6307 obstack_init (&collect_obstack
);
6308 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6309 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6310 xputenv (XOBFINISH (&collect_obstack
, char *));
6312 #ifdef INIT_ENVIRONMENT
6313 /* Set up any other necessary machine specific environment variables. */
6314 xputenv (INIT_ENVIRONMENT
);
6317 /* Make a table of what switches there are (switches, n_switches).
6318 Make a table of specified input files (infiles, n_infiles).
6319 Decode switches that are handled locally. */
6321 process_command (argc
, (const char **) argv
);
6323 /* Initialize the vector of specs to just the default.
6324 This means one element containing 0s, as a terminator. */
6326 compilers
= xmalloc (sizeof default_compilers
);
6327 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6328 n_compilers
= n_default_compilers
;
6330 /* Read specs from a file if there is one. */
6332 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6333 spec_version
, dir_separator_str
, NULL
);
6334 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6336 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6337 /* Read the specs file unless it is a default one. */
6338 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6339 read_specs (specs_file
, TRUE
);
6343 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6344 for any override of as, ld and libraries. */
6345 specs_file
= alloca (strlen (standard_exec_prefix
)
6346 + strlen (just_machine_suffix
) + sizeof ("specs"));
6348 strcpy (specs_file
, standard_exec_prefix
);
6349 strcat (specs_file
, just_machine_suffix
);
6350 strcat (specs_file
, "specs");
6351 if (access (specs_file
, R_OK
) == 0)
6352 read_specs (specs_file
, TRUE
);
6354 /* Process any configure-time defaults specified for the command line
6355 options, via OPTION_DEFAULT_SPECS. */
6356 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6357 do_option_spec (option_default_specs
[i
].name
,
6358 option_default_specs
[i
].spec
);
6360 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6361 of the command line. */
6363 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6364 do_self_spec (driver_self_specs
[i
]);
6366 /* If not cross-compiling, look for executables in the standard
6368 if (*cross_compile
== '0')
6370 if (*md_exec_prefix
)
6372 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6373 PREFIX_PRIORITY_LAST
, 0, 0);
6377 /* Process sysroot_suffix_spec. */
6378 if (*sysroot_suffix_spec
!= 0
6379 && do_spec_2 (sysroot_suffix_spec
) == 0)
6381 if (argbuf_index
> 1)
6382 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6383 else if (argbuf_index
== 1)
6384 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6387 #ifdef HAVE_LD_SYSROOT
6388 /* Pass the --sysroot option to the linker, if it supports that. If
6389 there is a sysroot_suffix_spec, it has already been processed by
6390 this point, so target_system_root really is the system root we
6392 if (target_system_root
)
6394 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6395 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6396 set_spec ("link", XOBFINISH (&obstack
, const char *));
6400 /* Process sysroot_hdrs_suffix_spec. */
6401 if (*sysroot_hdrs_suffix_spec
!= 0
6402 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6404 if (argbuf_index
> 1)
6405 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6406 else if (argbuf_index
== 1)
6407 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6410 /* Look for startfiles in the standard places. */
6411 if (*startfile_prefix_spec
!= 0
6412 && do_spec_2 (startfile_prefix_spec
) == 0
6413 && do_spec_1 (" ", 0, NULL
) == 0)
6416 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6417 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6418 PREFIX_PRIORITY_LAST
, 0, 1);
6420 /* We should eventually get rid of all these and stick to
6421 startfile_prefix_spec exclusively. */
6422 else if (*cross_compile
== '0' || target_system_root
)
6424 if (*md_startfile_prefix
)
6425 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6426 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6428 if (*md_startfile_prefix_1
)
6429 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6430 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6432 /* If standard_startfile_prefix is relative, base it on
6433 standard_exec_prefix. This lets us move the installed tree
6434 as a unit. If GCC_EXEC_PREFIX is defined, base
6435 standard_startfile_prefix on that as well.
6437 If the prefix is relative, only search it for native compilers;
6438 otherwise we will search a directory containing host libraries. */
6439 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6440 add_sysrooted_prefix (&startfile_prefixes
,
6441 standard_startfile_prefix
, "BINUTILS",
6442 PREFIX_PRIORITY_LAST
, 0, 1);
6443 else if (*cross_compile
== '0')
6445 add_prefix (&startfile_prefixes
,
6446 concat (gcc_exec_prefix
6447 ? gcc_exec_prefix
: standard_exec_prefix
,
6449 standard_startfile_prefix
, NULL
),
6450 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6453 /* Sysrooted prefixes are relocated because target_system_root is
6454 also relocated by gcc_exec_prefix. */
6455 if (*standard_startfile_prefix_1
)
6456 add_sysrooted_prefix (&startfile_prefixes
,
6457 standard_startfile_prefix_1
, "BINUTILS",
6458 PREFIX_PRIORITY_LAST
, 0, 1);
6459 if (*standard_startfile_prefix_2
)
6460 add_sysrooted_prefix (&startfile_prefixes
,
6461 standard_startfile_prefix_2
, "BINUTILS",
6462 PREFIX_PRIORITY_LAST
, 0, 1);
6465 /* Process any user specified specs in the order given on the command
6467 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6469 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6471 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6474 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6475 if (gcc_exec_prefix
)
6476 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6477 spec_version
, dir_separator_str
, NULL
);
6479 /* Now we have the specs.
6480 Set the `valid' bits for switches that match anything in any spec. */
6482 validate_all_switches ();
6484 /* Now that we have the switches and the specs, set
6485 the subdirectory based on the options. */
6486 set_multilib_dir ();
6488 /* Warn about any switches that no pass was interested in. */
6490 for (i
= 0; (int) i
< n_switches
; i
++)
6491 if (! switches
[i
].validated
)
6492 error ("unrecognized option '-%s'", switches
[i
].part1
);
6494 /* Obey some of the options. */
6496 if (print_search_dirs
)
6498 printf (_("install: %s%s\n"),
6499 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6500 gcc_exec_prefix
? "" : machine_suffix
);
6501 printf (_("programs: %s\n"),
6502 build_search_list (&exec_prefixes
, "", false, false));
6503 printf (_("libraries: %s\n"),
6504 build_search_list (&startfile_prefixes
, "", false, true));
6508 if (print_file_name
)
6510 printf ("%s\n", find_file (print_file_name
));
6514 if (print_prog_name
)
6516 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6517 printf ("%s\n", (newname
? newname
: print_prog_name
));
6521 if (print_multi_lib
)
6523 print_multilib_info ();
6527 if (print_multi_directory
)
6529 if (multilib_dir
== NULL
)
6532 printf ("%s\n", multilib_dir
);
6536 if (print_multi_os_directory
)
6538 if (multilib_os_dir
== NULL
)
6541 printf ("%s\n", multilib_os_dir
);
6545 if (print_sysroot_headers_suffix
)
6547 if (*sysroot_hdrs_suffix_spec
)
6549 printf("%s\n", (target_sysroot_hdrs_suffix
6550 ? target_sysroot_hdrs_suffix
6555 /* The error status indicates that only one set of fixed
6556 headers should be built. */
6557 fatal ("not configured with sysroot headers suffix");
6560 if (print_help_list
)
6566 printf (_("\nFor bug reporting instructions, please see:\n"));
6567 printf ("%s.\n", bug_report_url
);
6572 /* We do not exit here. Instead we have created a fake input file
6573 called 'help-dummy' which needs to be compiled, and we pass this
6574 on the various sub-processes, along with the --help switch. */
6582 notice ("Target: %s\n", spec_machine
);
6583 notice ("Configured with: %s\n", configuration_arguments
);
6585 #ifdef THREAD_MODEL_SPEC
6586 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6587 but there's no point in doing all this processing just to get
6588 thread_model back. */
6589 obstack_init (&obstack
);
6590 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6591 obstack_1grow (&obstack
, '\0');
6592 thrmod
= XOBFINISH (&obstack
, const char *);
6594 thrmod
= thread_model
;
6597 notice ("Thread model: %s\n", thrmod
);
6599 /* compiler_version is truncated at the first space when initialized
6600 from version string, so truncate version_string at the first space
6601 before comparing. */
6602 for (n
= 0; version_string
[n
]; n
++)
6603 if (version_string
[n
] == ' ')
6606 if (! strncmp (version_string
, compiler_version
, n
)
6607 && compiler_version
[n
] == 0)
6608 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
6610 notice ("gcc driver version %s %sexecuting gcc version %s\n",
6611 version_string
, pkgversion_string
, compiler_version
);
6617 if (n_infiles
== added_libraries
)
6618 fatal ("no input files");
6620 /* Make a place to record the compiler output file names
6621 that correspond to the input files. */
6624 i
+= lang_specific_extra_outfiles
;
6625 outfiles
= XCNEWVEC (const char *, i
);
6627 /* Record which files were specified explicitly as link input. */
6629 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6632 combine_inputs
= true;
6634 combine_inputs
= false;
6636 for (i
= 0; (int) i
< n_infiles
; i
++)
6638 const char *name
= infiles
[i
].name
;
6639 struct compiler
*compiler
= lookup_compiler (name
,
6641 infiles
[i
].language
);
6643 if (compiler
&& !(compiler
->combinable
))
6644 combine_inputs
= false;
6646 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6647 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6648 infiles
[i
].incompiler
= compiler
;
6652 input_file_compiler
= compiler
;
6653 infiles
[i
].incompiler
= compiler
;
6657 /* Since there is no compiler for this input file, assume it is a
6659 explicit_link_files
[i
] = 1;
6660 infiles
[i
].incompiler
= NULL
;
6662 infiles
[i
].compiled
= false;
6663 infiles
[i
].preprocessed
= false;
6666 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6667 fatal ("cannot specify -o with -c or -S with multiple files");
6669 if (combine_flag
&& save_temps_flag
)
6671 bool save_combine_inputs
= combine_inputs
;
6672 /* Must do a separate pre-processing pass for C & Objective-C files, to
6673 obtain individual .i files. */
6675 combine_inputs
= false;
6676 for (i
= 0; (int) i
< n_infiles
; i
++)
6678 int this_file_error
= 0;
6680 input_file_number
= i
;
6681 set_input (infiles
[i
].name
);
6682 if (infiles
[i
].incompiler
6683 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6684 input_file_compiler
= infiles
[i
].incompiler
;
6688 if (input_file_compiler
)
6690 if (input_file_compiler
->spec
[0] == '#')
6692 error ("%s: %s compiler not installed on this system",
6693 input_filename
, &input_file_compiler
->spec
[1]);
6694 this_file_error
= 1;
6698 value
= do_spec (input_file_compiler
->spec
);
6699 infiles
[i
].preprocessed
= true;
6700 if (!have_o_argbuf_index
)
6701 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6702 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6703 infiles
[i
].incompiler
6704 = lookup_compiler (infiles
[i
].name
,
6705 strlen (infiles
[i
].name
),
6706 infiles
[i
].language
);
6709 this_file_error
= 1;
6713 if (this_file_error
)
6715 delete_failure_queue ();
6719 clear_failure_queue ();
6721 combine_inputs
= save_combine_inputs
;
6724 for (i
= 0; (int) i
< n_infiles
; i
++)
6726 int this_file_error
= 0;
6728 /* Tell do_spec what to substitute for %i. */
6730 input_file_number
= i
;
6731 set_input (infiles
[i
].name
);
6733 if (infiles
[i
].compiled
)
6736 /* Use the same thing in %o, unless cp->spec says otherwise. */
6738 outfiles
[i
] = input_filename
;
6740 /* Figure out which compiler from the file's suffix. */
6742 if (! combine_inputs
)
6744 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6745 infiles
[i
].language
);
6747 input_file_compiler
= infiles
[i
].incompiler
;
6749 if (input_file_compiler
)
6751 /* Ok, we found an applicable compiler. Run its spec. */
6753 if (input_file_compiler
->spec
[0] == '#')
6755 error ("%s: %s compiler not installed on this system",
6756 input_filename
, &input_file_compiler
->spec
[1]);
6757 this_file_error
= 1;
6761 value
= do_spec (input_file_compiler
->spec
);
6762 infiles
[i
].compiled
= true;
6764 this_file_error
= 1;
6768 /* If this file's name does not contain a recognized suffix,
6769 record it as explicit linker input. */
6772 explicit_link_files
[i
] = 1;
6774 /* Clear the delete-on-failure queue, deleting the files in it
6775 if this compilation failed. */
6777 if (this_file_error
)
6779 delete_failure_queue ();
6782 /* If this compilation succeeded, don't delete those files later. */
6783 clear_failure_queue ();
6786 /* Reset the input file name to the first compile/object file name, for use
6787 with %b in LINK_SPEC. We use the first input file that we can find
6788 a compiler to compile it instead of using infiles.language since for
6789 languages other than C we use aliases that we then lookup later. */
6794 for (i
= 0; i
< n_infiles
; i
++)
6795 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6797 set_input (infiles
[i
].name
);
6802 if (error_count
== 0)
6804 /* Make sure INPUT_FILE_NUMBER points to first available open
6806 input_file_number
= n_infiles
;
6807 if (lang_specific_pre_link ())
6811 /* Determine if there are any linker input files. */
6812 num_linker_inputs
= 0;
6813 for (i
= 0; (int) i
< n_infiles
; i
++)
6814 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6815 num_linker_inputs
++;
6817 /* Run ld to link all the compiler output files. */
6819 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
6821 int tmp
= execution_count
;
6823 /* We'll use ld if we can't find collect2. */
6824 if (! strcmp (linker_name_spec
, "collect2"))
6826 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6828 linker_name_spec
= "ld";
6830 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6832 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6833 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6835 if (print_subprocess_help
== 1)
6837 printf (_("\nLinker options\n==============\n\n"));
6838 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6839 " to the linker.\n\n"));
6842 value
= do_spec (link_command_spec
);
6845 linker_was_run
= (tmp
!= execution_count
);
6848 /* If options said don't run linker,
6849 complain about input files to be given to the linker. */
6851 if (! linker_was_run
&& error_count
== 0)
6852 for (i
= 0; (int) i
< n_infiles
; i
++)
6853 if (explicit_link_files
[i
]
6854 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6855 error ("%s: linker input file unused because linking not done",
6858 /* Delete some or all of the temporary files we made. */
6861 delete_failure_queue ();
6862 delete_temp_files ();
6864 if (print_help_list
)
6866 printf (("\nFor bug reporting instructions, please see:\n"));
6867 printf ("%s\n", bug_report_url
);
6870 return (signal_count
!= 0 ? 2
6871 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6875 /* Find the proper compilation spec for the file name NAME,
6876 whose length is LENGTH. LANGUAGE is the specified language,
6877 or 0 if this file is to be passed to the linker. */
6879 static struct compiler
*
6880 lookup_compiler (const char *name
, size_t length
, const char *language
)
6882 struct compiler
*cp
;
6884 /* If this was specified by the user to be a linker input, indicate that. */
6885 if (language
!= 0 && language
[0] == '*')
6888 /* Otherwise, look for the language, if one is spec'd. */
6891 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6892 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6895 error ("language %s not recognized", language
);
6899 /* Look for a suffix. */
6900 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6902 if (/* The suffix `-' matches only the file name `-'. */
6903 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6904 || (strlen (cp
->suffix
) < length
6905 /* See if the suffix matches the end of NAME. */
6906 && !strcmp (cp
->suffix
,
6907 name
+ length
- strlen (cp
->suffix
))
6912 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6913 /* Look again, but case-insensitively this time. */
6915 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6917 if (/* The suffix `-' matches only the file name `-'. */
6918 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6919 || (strlen (cp
->suffix
) < length
6920 /* See if the suffix matches the end of NAME. */
6921 && ((!strcmp (cp
->suffix
,
6922 name
+ length
- strlen (cp
->suffix
))
6923 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6924 && !strcasecmp (cp
->suffix
,
6925 name
+ length
- strlen (cp
->suffix
)))
6931 if (cp
>= compilers
)
6933 if (cp
->spec
[0] != '@')
6934 /* A non-alias entry: return it. */
6937 /* An alias entry maps a suffix to a language.
6938 Search for the language; pass 0 for NAME and LENGTH
6939 to avoid infinite recursion if language not found. */
6940 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6946 save_string (const char *s
, int len
)
6948 char *result
= XNEWVEC (char, len
+ 1);
6950 memcpy (result
, s
, len
);
6956 pfatal_with_name (const char *name
)
6958 perror_with_name (name
);
6959 delete_temp_files ();
6964 perror_with_name (const char *name
)
6966 error ("%s: %s", name
, xstrerror (errno
));
6969 /* Output an error message and exit. */
6972 fancy_abort (const char *file
, int line
, const char *func
)
6974 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6977 /* Output an error message and exit. */
6980 fatal_ice (const char *cmsgid
, ...)
6984 va_start (ap
, cmsgid
);
6986 fprintf (stderr
, "%s: ", programname
);
6987 vfprintf (stderr
, _(cmsgid
), ap
);
6989 fprintf (stderr
, "\n");
6990 delete_temp_files ();
6991 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
6995 fatal (const char *cmsgid
, ...)
6999 va_start (ap
, cmsgid
);
7001 fprintf (stderr
, "%s: ", programname
);
7002 vfprintf (stderr
, _(cmsgid
), ap
);
7004 fprintf (stderr
, "\n");
7005 delete_temp_files ();
7009 /* The argument is actually c-format, not gcc-internal-format,
7010 but because functions with identical names are used through
7011 the rest of the compiler with gcc-internal-format, we just
7012 need to hope all users of these functions use the common
7013 subset between c-format and gcc-internal-format. */
7016 error (const char *gmsgid
, ...)
7020 va_start (ap
, gmsgid
);
7021 fprintf (stderr
, "%s: ", programname
);
7022 vfprintf (stderr
, _(gmsgid
), ap
);
7025 fprintf (stderr
, "\n");
7029 notice (const char *cmsgid
, ...)
7033 va_start (ap
, cmsgid
);
7034 vfprintf (stderr
, _(cmsgid
), ap
);
7039 validate_switches_from_spec (const char *spec
)
7041 const char *p
= spec
;
7044 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7045 /* We have a switch spec. */
7046 p
= validate_switches (p
+ 1);
7050 validate_all_switches (void)
7052 struct compiler
*comp
;
7053 struct spec_list
*spec
;
7055 for (comp
= compilers
; comp
->spec
; comp
++)
7056 validate_switches_from_spec (comp
->spec
);
7058 /* Look through the linked list of specs read from the specs file. */
7059 for (spec
= specs
; spec
; spec
= spec
->next
)
7060 validate_switches_from_spec (*spec
->ptr_spec
);
7062 validate_switches_from_spec (link_command_spec
);
7065 /* Look at the switch-name that comes after START
7066 and mark as valid all supplied switches that match it. */
7069 validate_switches (const char *start
)
7071 const char *p
= start
;
7075 bool suffix
= false;
7076 bool starred
= false;
7078 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7087 if (*p
== '.' || *p
== ',')
7091 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7092 || *p
== ',' || *p
== '.' || *p
== '@')
7097 starred
= true, p
++;
7103 /* Mark all matching switches as valid. */
7104 for (i
= 0; i
< n_switches
; i
++)
7105 if (!strncmp (switches
[i
].part1
, atom
, len
)
7106 && (starred
|| switches
[i
].part1
[len
] == 0))
7107 switches
[i
].validated
= 1;
7111 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7114 if (*p
&& p
[-1] == ':')
7116 while (*p
&& *p
!= ';' && *p
!= '}')
7121 if (*p
== '{' || *p
== '<')
7122 p
= validate_switches (p
+1);
7123 else if (p
[0] == 'W' && p
[1] == '{')
7124 p
= validate_switches (p
+2);
7131 if (*p
&& p
[-1] == ';')
7145 static struct mdswitchstr
*mdswitches
;
7146 static int n_mdswitches
;
7148 /* Check whether a particular argument was used. The first time we
7149 canonicalize the switches to keep only the ones we care about. */
7152 used_arg (const char *p
, int len
)
7157 const char *replace
;
7162 static struct mswitchstr
*mswitches
;
7163 static int n_mswitches
;
7168 struct mswitchstr
*matches
;
7172 /* Break multilib_matches into the component strings of string
7173 and replacement string. */
7174 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7178 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
7180 q
= multilib_matches
;
7189 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7193 matches
[i
].len
= q
- matches
[i
].str
;
7195 matches
[i
].replace
= ++q
;
7196 while (*q
!= ';' && *q
!= '\0')
7199 goto invalid_matches
;
7202 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7208 /* Now build a list of the replacement string for switches that we care
7209 about. Make sure we allocate at least one entry. This prevents
7210 xmalloc from calling fatal, and prevents us from re-executing this
7213 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7214 for (i
= 0; i
< n_switches
; i
++)
7215 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7217 int xlen
= strlen (switches
[i
].part1
);
7218 for (j
= 0; j
< cnt
; j
++)
7219 if (xlen
== matches
[j
].len
7220 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7222 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7223 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7224 mswitches
[n_mswitches
].replace
= (char *) 0;
7225 mswitches
[n_mswitches
].rep_len
= 0;
7231 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7232 on the command line nor any options mutually incompatible with
7234 for (i
= 0; i
< n_mdswitches
; i
++)
7238 for (q
= multilib_options
; *q
!= '\0'; q
++)
7244 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7245 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7247 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7254 if (*q
!= ' ' && *q
!= '\0')
7256 while (*r
!= ' ' && *r
!= '\0')
7259 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7262 if (used_arg (r
, q
- r
))
7267 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7268 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7269 mswitches
[n_mswitches
].replace
= (char *) 0;
7270 mswitches
[n_mswitches
].rep_len
= 0;
7283 for (i
= 0; i
< n_mswitches
; i
++)
7284 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7291 default_arg (const char *p
, int len
)
7295 for (i
= 0; i
< n_mdswitches
; i
++)
7296 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7302 /* Work out the subdirectory to use based on the options. The format of
7303 multilib_select is a list of elements. Each element is a subdirectory
7304 name followed by a list of options followed by a semicolon. The format
7305 of multilib_exclusions is the same, but without the preceding
7306 directory. First gcc will check the exclusions, if none of the options
7307 beginning with an exclamation point are present, and all of the other
7308 options are present, then we will ignore this completely. Passing
7309 that, gcc will consider each multilib_select in turn using the same
7310 rules for matching the options. If a match is found, that subdirectory
7314 set_multilib_dir (void)
7317 unsigned int this_path_len
;
7318 const char *this_path
, *this_arg
;
7319 const char *start
, *end
;
7321 int ok
, ndfltok
, first
;
7324 start
= multilib_defaults
;
7325 while (*start
== ' ' || *start
== '\t')
7327 while (*start
!= '\0')
7330 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7332 while (*start
== ' ' || *start
== '\t')
7340 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7341 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7343 while (*start
== ' ' || *start
== '\t')
7349 for (end
= start
+ 1;
7350 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7353 obstack_grow (&multilib_obstack
, start
, end
- start
);
7354 obstack_1grow (&multilib_obstack
, 0);
7355 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7356 mdswitches
[i
++].len
= end
- start
;
7363 p
= multilib_exclusions
;
7366 /* Ignore newlines. */
7373 /* Check the arguments. */
7380 fatal ("multilib exclusions '%s' is invalid",
7381 multilib_exclusions
);
7391 while (*p
!= ' ' && *p
!= ';')
7394 goto invalid_exclusions
;
7398 if (*this_arg
!= '!')
7406 ok
= used_arg (this_arg
, p
- this_arg
);
7421 p
= multilib_select
;
7424 /* Ignore newlines. */
7431 /* Get the initial path. */
7438 fatal ("multilib select '%s' is invalid",
7443 this_path_len
= p
- this_path
;
7445 /* Check the arguments. */
7452 goto invalid_select
;
7461 while (*p
!= ' ' && *p
!= ';')
7464 goto invalid_select
;
7468 if (*this_arg
!= '!')
7476 /* If this is a default argument, we can just ignore it.
7477 This is true even if this_arg begins with '!'. Beginning
7478 with '!' does not mean that this argument is necessarily
7479 inappropriate for this library: it merely means that
7480 there is a more specific library which uses this
7481 argument. If this argument is a default, we need not
7482 consider that more specific library. */
7483 ok
= used_arg (this_arg
, p
- this_arg
);
7490 if (default_arg (this_arg
, p
- this_arg
))
7499 if (this_path_len
!= 1
7500 || this_path
[0] != '.')
7502 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7505 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7506 new_multilib_dir
[this_path_len
] = '\0';
7507 q
= strchr (new_multilib_dir
, ':');
7510 multilib_dir
= new_multilib_dir
;
7517 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7519 while (q
< end
&& *q
!= ':')
7523 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7524 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7525 new_multilib_os_dir
[end
- q
- 1] = '\0';
7526 multilib_os_dir
= new_multilib_os_dir
;
7534 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7535 && strcmp (multilib_os_dir
, ".") == 0)
7537 free (CONST_CAST (char *, multilib_os_dir
));
7538 multilib_os_dir
= NULL
;
7540 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7541 multilib_os_dir
= multilib_dir
;
7544 /* Print out the multiple library subdirectory selection
7545 information. This prints out a series of lines. Each line looks
7546 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7547 required. Only the desired options are printed out, the negative
7548 matches. The options are print without a leading dash. There are
7549 no spaces to make it easy to use the information in the shell.
7550 Each subdirectory is printed only once. This assumes the ordering
7551 generated by the genmultilib script. Also, we leave out ones that match
7555 print_multilib_info (void)
7557 const char *p
= multilib_select
;
7558 const char *last_path
= 0, *this_path
;
7560 unsigned int last_path_len
= 0;
7565 /* Ignore newlines. */
7572 /* Get the initial path. */
7579 fatal ("multilib select '%s' is invalid", multilib_select
);
7585 /* When --disable-multilib was used but target defines
7586 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7587 to find multilib_os_dir, so skip them from output. */
7588 if (this_path
[0] == '.' && this_path
[1] == ':')
7591 /* Check for matches with the multilib_exclusions. We don't bother
7592 with the '!' in either list. If any of the exclusion rules match
7593 all of its options with the select rule, we skip it. */
7595 const char *e
= multilib_exclusions
;
7596 const char *this_arg
;
7601 /* Ignore newlines. */
7608 /* Check the arguments. */
7617 fatal ("multilib exclusion '%s' is invalid",
7618 multilib_exclusions
);
7629 while (*e
!= ' ' && *e
!= ';')
7632 goto invalid_exclusion
;
7640 int len
= e
- this_arg
;
7643 goto invalid_select
;
7647 while (*q
!= ' ' && *q
!= ';')
7650 goto invalid_select
;
7654 if (! strncmp (arg
, this_arg
,
7655 (len
< q
- arg
) ? q
- arg
: len
)
7656 || default_arg (this_arg
, e
- this_arg
))
7686 /* If this is a duplicate, skip it. */
7687 skip
= (last_path
!= 0
7688 && (unsigned int) (p
- this_path
) == last_path_len
7689 && ! strncmp (last_path
, this_path
, last_path_len
));
7691 last_path
= this_path
;
7692 last_path_len
= p
- this_path
;
7695 /* If this directory requires any default arguments, we can skip
7696 it. We will already have printed a directory identical to
7697 this one which does not require that default argument. */
7708 goto invalid_select
;
7715 while (*q
!= ' ' && *q
!= ';')
7718 goto invalid_select
;
7723 && default_arg (arg
, q
- arg
))
7738 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7749 goto invalid_select
;
7757 use_arg
= *p
!= '!';
7762 while (*p
!= ' ' && *p
!= ';')
7765 goto invalid_select
;
7777 /* If there are extra options, print them now. */
7778 if (multilib_extra
&& *multilib_extra
)
7780 int print_at
= TRUE
;
7783 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7804 /* getenv built-in spec function.
7806 Returns the value of the environment variable given by its first
7807 argument, concatenated with the second argument. If the
7808 environment variable is not defined, a fatal error is issued. */
7811 getenv_spec_function (int argc
, const char **argv
)
7821 value
= getenv (argv
[0]);
7823 fatal ("environment variable \"%s\" not defined", argv
[0]);
7825 /* We have to escape every character of the environment variable so
7826 they are not interpretted as active spec characters. A
7827 particulaly painful case is when we are reading a variable
7828 holding a windows path complete with \ separators. */
7829 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7830 result
= xmalloc (len
);
7831 for (ptr
= result
; *value
; ptr
+= 2)
7837 strcpy (ptr
, argv
[1]);
7842 /* if-exists built-in spec function.
7844 Checks to see if the file specified by the absolute pathname in
7845 ARGS exists. Returns that pathname if found.
7847 The usual use for this function is to check for a library file
7848 (whose name has been expanded with %s). */
7851 if_exists_spec_function (int argc
, const char **argv
)
7853 /* Must have only one argument. */
7854 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7860 /* if-exists-else built-in spec function.
7862 This is like if-exists, but takes an additional argument which
7863 is returned if the first argument does not exist. */
7866 if_exists_else_spec_function (int argc
, const char **argv
)
7868 /* Must have exactly two arguments. */
7872 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7878 /* replace-outfile built-in spec function.
7880 This looks for the first argument in the outfiles array's name and
7881 replaces it with the second argument. */
7884 replace_outfile_spec_function (int argc
, const char **argv
)
7887 /* Must have exactly two arguments. */
7891 for (i
= 0; i
< n_infiles
; i
++)
7893 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7894 outfiles
[i
] = xstrdup (argv
[1]);
7899 /* Given two version numbers, compares the two numbers.
7900 A version number must match the regular expression
7901 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7904 compare_version_strings (const char *v1
, const char *v2
)
7909 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7910 REG_EXTENDED
| REG_NOSUB
) != 0)
7912 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7913 if (rresult
== REG_NOMATCH
)
7914 fatal ("invalid version number `%s'", v1
);
7915 else if (rresult
!= 0)
7917 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7918 if (rresult
== REG_NOMATCH
)
7919 fatal ("invalid version number `%s'", v2
);
7920 else if (rresult
!= 0)
7923 return strverscmp (v1
, v2
);
7927 /* version_compare built-in spec function.
7929 This takes an argument of the following form:
7931 <comparison-op> <arg1> [<arg2>] <switch> <result>
7933 and produces "result" if the comparison evaluates to true,
7934 and nothing if it doesn't.
7936 The supported <comparison-op> values are:
7938 >= true if switch is a later (or same) version than arg1
7940 < true if switch is an earlier version than arg1
7942 >< true if switch is arg1 or later, and earlier than arg2
7943 <> true if switch is earlier than arg1 or is arg2 or later
7945 If the switch is not present, the condition is false unless
7946 the first character of the <comparison-op> is '!'.
7949 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7950 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7953 version_compare_spec_function (int argc
, const char **argv
)
7957 const char *switch_value
= NULL
;
7962 fatal ("too few arguments to %%:version-compare");
7963 if (argv
[0][0] == '\0')
7965 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7967 if (argc
!= nargs
+ 3)
7968 fatal ("too many arguments to %%:version-compare");
7970 switch_len
= strlen (argv
[nargs
+ 1]);
7971 for (i
= 0; i
< n_switches
; i
++)
7972 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7973 && check_live_switch (i
, switch_len
))
7974 switch_value
= switches
[i
].part1
+ switch_len
;
7976 if (switch_value
== NULL
)
7980 comp1
= compare_version_strings (switch_value
, argv
[1]);
7982 comp2
= compare_version_strings (switch_value
, argv
[2]);
7984 comp2
= -1; /* This value unused. */
7987 switch (argv
[0][0] << 8 | argv
[0][1])
7989 case '>' << 8 | '=':
7990 result
= comp1
>= 0;
7992 case '!' << 8 | '<':
7993 result
= comp1
>= 0 || switch_value
== NULL
;
7998 case '!' << 8 | '>':
7999 result
= comp1
< 0 || switch_value
== NULL
;
8001 case '>' << 8 | '<':
8002 result
= comp1
>= 0 && comp2
< 0;
8004 case '<' << 8 | '>':
8005 result
= comp1
< 0 || comp2
>= 0;
8009 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8014 return argv
[nargs
+ 2];
8017 /* %:include builtin spec function. This differs from %include in that it
8018 can be nested inside a spec, and thus be conditionalized. It takes
8019 one argument, the filename, and looks for it in the startfile path.
8020 The result is always NULL, i.e. an empty expansion. */
8023 include_spec_function (int argc
, const char **argv
)
8030 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, 0);
8031 read_specs (file
? file
: argv
[0], FALSE
);
8036 /* %:print-asm-header spec function. Print a banner to say that the
8037 following output is from the assembler. */
8040 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8041 const char **argv ATTRIBUTE_UNUSED
)
8043 printf (_("Assembler options\n=================\n\n"));
8044 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));