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
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 /* Forward declaration for prototypes. */
292 static void init_spec (void);
293 static void store_arg (const char *, int, int);
294 static char *load_specs (const char *);
295 static void read_specs (const char *, int);
296 static void set_spec (const char *, const char *);
297 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
298 static char *build_search_list (const struct path_prefix
*, const char *,
300 static void xputenv (const char *);
301 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
303 static int access_check (const char *, int);
304 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
305 static void add_prefix (struct path_prefix
*, const char *, const char *,
307 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
308 const char *, int, int, int);
309 static void translate_options (int *, const char *const **);
310 static char *skip_whitespace (char *);
311 static void delete_if_ordinary (const char *);
312 static void delete_temp_files (void);
313 static void delete_failure_queue (void);
314 static void clear_failure_queue (void);
315 static int check_live_switch (int, int);
316 static const char *handle_braces (const char *);
317 static inline bool input_suffix_matches (const char *, const char *);
318 static inline bool switch_matches (const char *, const char *, int);
319 static inline void mark_matching_switches (const char *, const char *, int);
320 static inline void process_marked_switches (void);
321 static const char *process_brace_body (const char *, const char *, const char *, int, int);
322 static const struct spec_function
*lookup_spec_function (const char *);
323 static const char *eval_spec_function (const char *, const char *);
324 static const char *handle_spec_function (const char *);
325 static char *save_string (const char *, int);
326 static void set_collect_gcc_options (void);
327 static int do_spec_1 (const char *, int, const char *);
328 static int do_spec_2 (const char *);
329 static void do_option_spec (const char *, const char *);
330 static void do_self_spec (const char *);
331 static const char *find_file (const char *);
332 static int is_directory (const char *, bool);
333 static const char *validate_switches (const char *);
334 static void validate_all_switches (void);
335 static inline void validate_switches_from_spec (const char *);
336 static void give_switch (int, int);
337 static int used_arg (const char *, int);
338 static int default_arg (const char *, int);
339 static void set_multilib_dir (void);
340 static void print_multilib_info (void);
341 static void perror_with_name (const char *);
342 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
343 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
344 static void display_help (void);
345 static void add_preprocessor_option (const char *, int);
346 static void add_assembler_option (const char *, int);
347 static void add_linker_option (const char *, int);
348 static void process_command (int, const char **);
349 static int execute (void);
350 static void alloc_args (void);
351 static void clear_args (void);
352 static void fatal_error (int);
353 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
354 static void init_gcc_specs (struct obstack
*, const char *, const char *,
357 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
358 static const char *convert_filename (const char *, int, int);
361 static const char *getenv_spec_function (int, const char **);
362 static const char *if_exists_spec_function (int, const char **);
363 static const char *if_exists_else_spec_function (int, const char **);
364 static const char *replace_outfile_spec_function (int, const char **);
365 static const char *version_compare_spec_function (int, const char **);
366 static const char *include_spec_function (int, const char **);
367 static const char *print_asm_header_spec_function (int, const char **);
369 /* The Specs Language
371 Specs are strings containing lines, each of which (if not blank)
372 is made up of a program name, and arguments separated by spaces.
373 The program name must be exact and start from root, since no path
374 is searched and it is unreliable to depend on the current working directory.
375 Redirection of input or output is not supported; the subprograms must
376 accept filenames saying what files to read and write.
378 In addition, the specs can contain %-sequences to substitute variable text
379 or for conditional text. Here is a table of all defined %-sequences.
380 Note that spaces are not generated automatically around the results of
381 expanding these sequences; therefore, you can concatenate them together
382 or with constant text in a single argument.
384 %% substitute one % into the program name or argument.
385 %i substitute the name of the input file being processed.
386 %b substitute the basename of the input file being processed.
387 This is the substring up to (and not including) the last period
388 and not including the directory.
389 %B same as %b, but include the file suffix (text after the last period).
391 substitute a file name that has suffix SUFFIX and is chosen
392 once per compilation, and mark the argument a la %d. To reduce
393 exposure to denial-of-service attacks, the file name is now
394 chosen in a way that is hard to predict even when previously
395 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
396 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
397 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
398 had been pre-processed. Previously, %g was simply substituted
399 with a file name chosen once per compilation, without regard
400 to any appended suffix (which was therefore treated just like
401 ordinary text), making such attacks more likely to succeed.
403 like %g, but if -pipe is in effect, expands simply to "-".
405 like %g, but if -pipe is in effect, expands to nothing. (We have both
406 %| and %m to accommodate differences between system assemblers; see
407 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
409 like %g, but generates a new temporary file name even if %uSUFFIX
412 substitutes the last file name generated with %uSUFFIX, generating a
413 new one if there is no such last file name. In the absence of any
414 %uSUFFIX, this is just like %gSUFFIX, except they don't share
415 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
416 would involve the generation of two distinct file names, one
417 for each `%g.s' and another for each `%U.s'. Previously, %U was
418 simply substituted with a file name chosen for the previous %u,
419 without regard to any appended suffix.
421 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
422 writable, and if save-temps is off; otherwise, substitute the name
423 of a temporary file, just like %u. This temporary file is not
424 meant for communication between processes, but rather as a junk
427 substitutes .SUFFIX for the suffixes of a matched switch's args when
428 it is subsequently output with %*. SUFFIX is terminated by the next
430 %d marks the argument containing or following the %d as a
431 temporary file name, so that that file will be deleted if CC exits
432 successfully. Unlike %g, this contributes no text to the argument.
433 %w marks the argument containing or following the %w as the
434 "output file" of this compilation. This puts the argument
435 into the sequence of arguments that %o will substitute later.
436 %V indicates that this compilation produces no "output file".
438 like %{...} but mark last argument supplied within
439 as a file to be deleted on failure.
440 %o substitutes the names of all the output files, with spaces
441 automatically placed around them. You should write spaces
442 around the %o as well or the results are undefined.
443 %o is for use in the specs for running the linker.
444 Input files whose names have no recognized suffix are not compiled
445 at all, but they are included among the output files, so they will
447 %O substitutes the suffix for object files. Note that this is
448 handled specially when it immediately follows %g, %u, or %U
449 (with or without a suffix argument) because of the need for
450 those to form complete file names. The handling is such that
451 %O is treated exactly as if it had already been substituted,
452 except that %g, %u, and %U do not currently support additional
453 SUFFIX characters following %O as they would following, for
455 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
456 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
457 and -B options) and -imultilib as necessary.
458 %s current argument is the name of a library or startup file of some sort.
459 Search for that file in a standard list of directories
460 and substitute the full name found.
461 %eSTR Print STR as an error message. STR is terminated by a newline.
462 Use this when inconsistent options are detected.
463 %nSTR Print STR as a notice. STR is terminated by a newline.
464 %x{OPTION} Accumulate an option for %X.
465 %X Output the accumulated linker options specified by compilations.
466 %Y Output the accumulated assembler options specified by compilations.
467 %Z Output the accumulated preprocessor options specified by compilations.
468 %a process ASM_SPEC as a spec.
469 This allows config.h to specify part of the spec for running as.
470 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
471 used here. This can be used to run a post-processor after the
472 assembler has done its job.
473 %D Dump out a -L option for each directory in startfile_prefixes.
474 If multilib_dir is set, extra entries are generated with it affixed.
475 %l process LINK_SPEC as a spec.
476 %L process LIB_SPEC as a spec.
477 %G process LIBGCC_SPEC as a spec.
478 %R Output the concatenation of target_system_root and
479 target_sysroot_suffix.
480 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
481 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
482 %C process CPP_SPEC as a spec.
483 %1 process CC1_SPEC as a spec.
484 %2 process CC1PLUS_SPEC as a spec.
485 %* substitute the variable part of a matched option. (See below.)
486 Note that each comma in the substituted string is replaced by
488 %<S remove all occurrences of -S from the command line.
489 Note - this command is position dependent. % commands in the
490 spec string before this one will see -S, % commands in the
491 spec string after this one will not.
492 %<S* remove all occurrences of all switches beginning with -S from the
495 Call the named function FUNCTION, passing it ARGS. ARGS is
496 first processed as a nested spec string, then split into an
497 argument vector in the usual fashion. The function returns
498 a string which is processed as if it had appeared literally
499 as part of the current spec.
500 %{S} substitutes the -S switch, if that switch was given to CC.
501 If that switch was not specified, this substitutes nothing.
502 Here S is a metasyntactic variable.
503 %{S*} substitutes all the switches specified to CC whose names start
504 with -S. This is used for -o, -I, etc; switches that take
505 arguments. CC considers `-o foo' as being one switch whose
506 name starts with `o'. %{o*} would substitute this text,
507 including the space; thus, two arguments would be generated.
508 %{S*&T*} likewise, but preserve order of S and T options (the order
509 of S and T in the spec is not significant). Can be any number
510 of ampersand-separated variables; for each the wild card is
511 optional. Useful for CPP as %{D*&U*&A*}.
513 %{S:X} substitutes X, if the -S switch was given to CC.
514 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
515 %{S*:X} substitutes X if one or more switches whose names start
516 with -S was given to CC. Normally X is substituted only
517 once, no matter how many such switches appeared. However,
518 if %* appears somewhere in X, then X will be substituted
519 once for each matching switch, with the %* replaced by the
520 part of that switch that matched the '*'.
521 %{.S:X} substitutes X, if processing a file with suffix S.
522 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
523 %{,S:X} substitutes X, if processing a file which will use spec S.
524 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
526 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
527 combined with '!', '.', ',', and '*' as above binding stronger
529 If %* appears in X, all of the alternatives must be starred, and
530 only the first matching alternative is substituted.
531 %{S:X; if S was given to CC, substitutes X;
532 T:Y; else if T was given to CC, substitutes Y;
533 :D} else substitutes D. There can be as many clauses as you need.
534 This may be combined with '.', '!', ',', '|', and '*' as above.
536 %(Spec) processes a specification defined in a specs file as *Spec:
537 %[Spec] as above, but put __ around -D arguments
539 The conditional text X in a %{S:X} or similar construct may contain
540 other nested % constructs or spaces, or even newlines. They are
541 processed as usual, as described above. Trailing white space in X is
542 ignored. White space may also appear anywhere on the left side of the
543 colon in these constructs, except between . or * and the corresponding
546 The -O, -f, -m, and -W switches are handled specifically in these
547 constructs. If another value of -O or the negated form of a -f, -m, or
548 -W switch is found later in the command line, the earlier switch
549 value is ignored, except with {S*} where S is just one letter; this
550 passes all matching options.
552 The character | at the beginning of the predicate text is used to indicate
553 that a command should be piped to the following command, but only if -pipe
556 Note that it is built into CC which switches take arguments and which
557 do not. You might think it would be useful to generalize this to
558 allow each compiler's spec to say which switches take arguments. But
559 this cannot be done in a consistent fashion. CC cannot even decide
560 which input files have been specified without knowing which switches
561 take arguments, and it must know which input files to compile in order
562 to tell which compilers to run.
564 CC also knows implicitly that arguments starting in `-l' are to be
565 treated as compiler output files, and passed to the linker in their
566 proper position among the other output files. */
568 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
570 /* config.h can define ASM_SPEC to provide extra args to the assembler
571 or extra switch-translations. */
576 /* config.h can define ASM_FINAL_SPEC to run a post processor after
577 the assembler has run. */
578 #ifndef ASM_FINAL_SPEC
579 #define ASM_FINAL_SPEC ""
582 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
583 or extra switch-translations. */
588 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
589 or extra switch-translations. */
594 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
595 or extra switch-translations. */
597 #define CC1PLUS_SPEC ""
600 /* config.h can define LINK_SPEC to provide extra args to the linker
601 or extra switch-translations. */
606 /* config.h can define LIB_SPEC to override the default libraries. */
608 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
613 /* XXX: valid only for GNU ld */
614 /* XXX: should exactly match hooks provided by libmudflap.a */
615 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
616 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
617 --wrap=mmap --wrap=munmap --wrap=alloca\
618 } %{fmudflapth: --wrap=pthread_create\
619 }} %{fmudflap|fmudflapth: --wrap=main}"
622 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
625 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
628 #if defined(REAL_LIBGCC_SPEC)
629 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
630 #elif defined(LINK_LIBGCC_SPECIAL_1)
631 /* Have gcc do the search for libgcc.a. */
632 #define LIBGCC_SPEC "libgcc.a%s"
634 #define LIBGCC_SPEC "-lgcc"
638 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
639 #ifndef STARTFILE_SPEC
640 #define STARTFILE_SPEC \
641 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
644 /* config.h can define SWITCHES_NEED_SPACES to control which options
645 require spaces between the option and the argument. */
646 #ifndef SWITCHES_NEED_SPACES
647 #define SWITCHES_NEED_SPACES ""
650 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
652 #define ENDFILE_SPEC ""
656 #define LINKER_NAME "collect2"
659 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
660 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
665 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
667 #ifndef ASM_DEBUG_SPEC
668 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
669 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
670 # define ASM_DEBUG_SPEC \
671 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
672 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" ASM_MAP \
673 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}" ASM_MAP)
675 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
676 # define ASM_DEBUG_SPEC "%{g*:--gstabs}" ASM_MAP
678 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
679 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" ASM_MAP
683 #ifndef ASM_DEBUG_SPEC
684 # define ASM_DEBUG_SPEC ""
687 /* Here is the spec for running the linker, after compiling all files. */
689 /* This is overridable by the target in case they need to specify the
690 -lgcc and -lc order specially, yet not require them to override all
691 of LINK_COMMAND_SPEC. */
692 #ifndef LINK_GCC_C_SEQUENCE_SPEC
693 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
696 #ifndef LINK_SSP_SPEC
697 #ifdef TARGET_LIBC_PROVIDES_SSP
698 #define LINK_SSP_SPEC "%{fstack-protector:}"
700 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
704 #ifndef LINK_PIE_SPEC
706 #define LINK_PIE_SPEC "%{pie:-pie} "
708 #define LINK_PIE_SPEC "%{pie:} "
712 /* -u* was put back because both BSD and SysV seem to support it. */
713 /* %{static:} simply prevents an error message if the target machine
714 doesn't handle -static. */
715 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
716 scripts which exist in user specified directories, or in standard
718 #ifndef LINK_COMMAND_SPEC
719 #define LINK_COMMAND_SPEC "\
720 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
721 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
722 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
723 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
724 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
725 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
726 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
727 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
730 #ifndef LINK_LIBGCC_SPEC
731 /* Generate -L options for startfile prefix list. */
732 # define LINK_LIBGCC_SPEC "%D"
735 #ifndef STARTFILE_PREFIX_SPEC
736 # define STARTFILE_PREFIX_SPEC ""
740 # define SYSROOT_SPEC "--sysroot=%R"
743 #ifndef SYSROOT_SUFFIX_SPEC
744 # define SYSROOT_SUFFIX_SPEC ""
747 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
748 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
751 static const char *asm_debug
;
752 static const char *cpp_spec
= CPP_SPEC
;
753 static const char *cc1_spec
= CC1_SPEC
;
754 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
755 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
756 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
757 static const char *asm_spec
= ASM_SPEC
;
758 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
759 static const char *link_spec
= LINK_SPEC
;
760 static const char *lib_spec
= LIB_SPEC
;
761 static const char *mfwrap_spec
= MFWRAP_SPEC
;
762 static const char *mflib_spec
= MFLIB_SPEC
;
763 static const char *link_gomp_spec
= "";
764 static const char *libgcc_spec
= LIBGCC_SPEC
;
765 static const char *endfile_spec
= ENDFILE_SPEC
;
766 static const char *startfile_spec
= STARTFILE_SPEC
;
767 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
768 static const char *linker_name_spec
= LINKER_NAME
;
769 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
770 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
771 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
772 static const char *sysroot_spec
= SYSROOT_SPEC
;
773 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
774 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
776 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
777 There should be no need to override these in target dependent files,
778 but we need to copy them to the specs file so that newer versions
779 of the GCC driver can correctly drive older tool chains with the
780 appropriate -B options. */
782 /* When cpplib handles traditional preprocessing, get rid of this, and
783 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
784 that we default the front end language better. */
785 static const char *trad_capable_cpp
=
786 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
788 /* We don't wrap .d files in %W{} since a missing .d file, and
789 therefore no dependency entry, confuses make into thinking a .o
790 file that happens to exist is up-to-date. */
791 static const char *cpp_unique_options
=
792 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
793 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
794 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
795 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
796 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
797 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
798 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
799 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
800 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
801 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
804 /* This contains cpp options which are common with cc1_options and are passed
805 only when preprocessing only to avoid duplication. We pass the cc1 spec
806 options to the preprocessor so that it the cc1 spec may manipulate
807 options used to set target flags. Those special target flags settings may
808 in turn cause preprocessor symbols to be defined specially. */
809 static const char *cpp_options
=
810 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
811 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
812 %{undef} %{save-temps:-fpch-preprocess}";
814 /* This contains cpp options which are not passed when the preprocessor
815 output will be used by another program. */
816 static const char *cpp_debug_options
= "%{d*}";
818 /* NB: This is shared amongst all front-ends. */
819 static const char *cc1_options
=
820 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
821 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
822 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
823 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
824 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
825 %{Qn:-fno-ident} %{--help:--help}\
826 %{--target-help:--target-help}\
827 %{--help=*:--help=%(VALUE)}\
828 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
829 %{fsyntax-only:-o %j} %{-param*}\
830 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
831 %{coverage:-fprofile-arcs -ftest-coverage}";
833 static const char *asm_options
=
834 "%{--target-help:%:print-asm-header()} "
836 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
837 to the assembler equivalents. */
838 "%{v} %{w:-W} %{I*} "
840 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
842 static const char *invoke_as
=
843 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
844 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
846 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
849 /* Some compilers have limits on line lengths, and the multilib_select
850 and/or multilib_matches strings can be very long, so we build them at
852 static struct obstack multilib_obstack
;
853 static const char *multilib_select
;
854 static const char *multilib_matches
;
855 static const char *multilib_defaults
;
856 static const char *multilib_exclusions
;
858 /* Check whether a particular argument is a default argument. */
860 #ifndef MULTILIB_DEFAULTS
861 #define MULTILIB_DEFAULTS { "" }
864 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
866 #ifndef DRIVER_SELF_SPECS
867 #define DRIVER_SELF_SPECS ""
870 /* Adding -fopenmp should imply pthreads. This is particularly important
871 for targets that use different start files and suchlike. */
872 #ifndef GOMP_SELF_SPECS
873 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
876 static const char *const driver_self_specs
[] = {
877 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
880 #ifndef OPTION_DEFAULT_SPECS
881 #define OPTION_DEFAULT_SPECS { "", "" }
890 static const struct default_spec
891 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
895 struct user_specs
*next
;
896 const char *filename
;
899 static struct user_specs
*user_specs_head
, *user_specs_tail
;
901 #ifndef SWITCH_TAKES_ARG
902 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
905 #ifndef WORD_SWITCH_TAKES_ARG
906 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
909 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
910 /* This defines which switches stop a full compilation. */
911 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
912 ((CHAR) == 'c' || (CHAR) == 'S')
914 #ifndef SWITCH_CURTAILS_COMPILATION
915 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
916 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
920 /* Record the mapping from file suffixes for compilation specs. */
924 const char *suffix
; /* Use this compiler for input files
925 whose names end in this suffix. */
927 const char *spec
; /* To use this compiler, run this spec. */
929 const char *cpp_spec
; /* If non-NULL, substitute this spec
930 for `%C', rather than the usual
932 const int combinable
; /* If nonzero, compiler can deal with
933 multiple source files at once (IMA). */
934 const int needs_preprocessing
; /* If nonzero, source files need to
935 be run through a preprocessor. */
938 /* Pointer to a vector of `struct compiler' that gives the spec for
939 compiling a file, based on its suffix.
940 A file that does not end in any of these suffixes will be passed
941 unchanged to the loader and nothing else will be done to it.
943 An entry containing two 0s is used to terminate the vector.
945 If multiple entries match a file, the last matching one is used. */
947 static struct compiler
*compilers
;
949 /* Number of entries in `compilers', not counting the null terminator. */
951 static int n_compilers
;
953 /* The default list of file name suffixes and their compilation specs. */
955 static const struct compiler default_compilers
[] =
957 /* Add lists of suffixes of known languages here. If those languages
958 were not present when we built the driver, we will hit these copies
959 and be given a more meaningful error than "file not used since
960 linking is not done". */
961 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
962 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
963 {".mii", "#Objective-C++", 0, 0, 0},
964 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
965 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
966 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
967 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
968 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
969 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
970 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
971 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
972 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
973 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
974 {".r", "#Ratfor", 0, 0, 0},
975 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
976 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
977 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
978 /* Next come the entries for C. */
979 {".c", "@c", 0, 1, 1},
981 /* cc1 has an integrated ISO C preprocessor. We should invoke the
982 external preprocessor if -save-temps is given. */
983 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
985 %{traditional|ftraditional:\
986 %eGNU C no longer supports -traditional without -E}\
988 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
989 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
990 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
992 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
993 cc1 %(cpp_unique_options) %(cc1_options)}}}\
994 %{!fsyntax-only:%(invoke_as)}} \
996 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
997 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
998 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
999 cc1 %(cpp_unique_options) %(cc1_options)}}\
1000 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1002 "%{!E:%e-E or -x required when input is from standard input}\
1003 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1004 {".h", "@c-header", 0, 0, 0},
1006 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1007 external preprocessor if -save-temps is given. */
1008 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1010 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1011 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1012 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1014 -o %g.s %{!o*:--output-pch=%i.gch}\
1015 %W{o*:--output-pch=%*}%V}\
1016 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1017 cc1 %(cpp_unique_options) %(cc1_options)\
1018 -o %g.s %{!o*:--output-pch=%i.gch}\
1019 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1020 {".i", "@cpp-output", 0, 1, 0},
1022 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1023 {".s", "@assembler", 0, 1, 0},
1025 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1026 {".sx", "@assembler-with-cpp", 0, 1, 0},
1027 {".S", "@assembler-with-cpp", 0, 1, 0},
1028 {"@assembler-with-cpp",
1029 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1030 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1031 %{E|M|MM:%(cpp_debug_options)}\
1032 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1033 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1035 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1036 %{E|M|MM:%(cpp_debug_options)}\
1037 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1038 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1043 /* Mark end of table. */
1047 /* Number of elements in default_compilers, not counting the terminator. */
1049 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1051 /* A vector of options to give to the linker.
1052 These options are accumulated by %x,
1053 and substituted into the linker command with %X. */
1054 static int n_linker_options
;
1055 static char **linker_options
;
1057 /* A vector of options to give to the assembler.
1058 These options are accumulated by -Wa,
1059 and substituted into the assembler command with %Y. */
1060 static int n_assembler_options
;
1061 static char **assembler_options
;
1063 /* A vector of options to give to the preprocessor.
1064 These options are accumulated by -Wp,
1065 and substituted into the preprocessor command with %Z. */
1066 static int n_preprocessor_options
;
1067 static char **preprocessor_options
;
1069 /* Define how to map long options into short ones. */
1071 /* This structure describes one mapping. */
1074 /* The long option's name. */
1075 const char *const name
;
1076 /* The equivalent short option. */
1077 const char *const equivalent
;
1078 /* Argument info. A string of flag chars; NULL equals no options.
1079 a => argument required.
1080 o => argument optional.
1081 j => join argument to equivalent, making one word.
1082 * => require other text after NAME as an argument. */
1083 const char *const arg_info
;
1086 /* This is the table of mappings. Mappings are tried sequentially
1087 for each option encountered; the first one that matches, wins. */
1089 static const struct option_map option_map
[] =
1091 {"--all-warnings", "-Wall", 0},
1092 {"--ansi", "-ansi", 0},
1093 {"--assemble", "-S", 0},
1094 {"--assert", "-A", "a"},
1095 {"--classpath", "-fclasspath=", "aj"},
1096 {"--bootclasspath", "-fbootclasspath=", "aj"},
1097 {"--CLASSPATH", "-fclasspath=", "aj"},
1098 {"--combine", "-combine", 0},
1099 {"--comments", "-C", 0},
1100 {"--comments-in-macros", "-CC", 0},
1101 {"--compile", "-c", 0},
1102 {"--debug", "-g", "oj"},
1103 {"--define-macro", "-D", "aj"},
1104 {"--dependencies", "-M", 0},
1105 {"--dump", "-d", "a"},
1106 {"--dumpbase", "-dumpbase", "a"},
1107 {"--encoding", "-fencoding=", "aj"},
1108 {"--entry", "-e", 0},
1109 {"--extra-warnings", "-W", 0},
1110 {"--extdirs", "-fextdirs=", "aj"},
1111 {"--for-assembler", "-Wa", "a"},
1112 {"--for-linker", "-Xlinker", "a"},
1113 {"--force-link", "-u", "a"},
1114 {"--coverage", "-coverage", 0},
1115 {"--imacros", "-imacros", "a"},
1116 {"--include", "-include", "a"},
1117 {"--include-barrier", "-I-", 0},
1118 {"--include-directory", "-I", "aj"},
1119 {"--include-directory-after", "-idirafter", "a"},
1120 {"--include-prefix", "-iprefix", "a"},
1121 {"--include-with-prefix", "-iwithprefix", "a"},
1122 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1123 {"--include-with-prefix-after", "-iwithprefix", "a"},
1124 {"--language", "-x", "a"},
1125 {"--library-directory", "-L", "a"},
1126 {"--machine", "-m", "aj"},
1127 {"--machine-", "-m", "*j"},
1128 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1129 {"--no-line-commands", "-P", 0},
1130 {"--no-precompiled-includes", "-noprecomp", 0},
1131 {"--no-standard-includes", "-nostdinc", 0},
1132 {"--no-standard-libraries", "-nostdlib", 0},
1133 {"--no-warnings", "-w", 0},
1134 {"--optimize", "-O", "oj"},
1135 {"--output", "-o", "a"},
1136 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1137 {"--param", "--param", "a"},
1138 {"--pass-exit-codes", "-pass-exit-codes", 0},
1139 {"--pedantic", "-pedantic", 0},
1140 {"--pedantic-errors", "-pedantic-errors", 0},
1141 {"--pie", "-pie", 0},
1142 {"--pipe", "-pipe", 0},
1143 {"--prefix", "-B", "a"},
1144 {"--preprocess", "-E", 0},
1145 {"--print-search-dirs", "-print-search-dirs", 0},
1146 {"--print-file-name", "-print-file-name=", "aj"},
1147 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1148 {"--print-missing-file-dependencies", "-MG", 0},
1149 {"--print-multi-lib", "-print-multi-lib", 0},
1150 {"--print-multi-directory", "-print-multi-directory", 0},
1151 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1152 {"--print-prog-name", "-print-prog-name=", "aj"},
1153 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1154 {"--profile", "-p", 0},
1155 {"--profile-blocks", "-a", 0},
1156 {"--quiet", "-q", 0},
1157 {"--resource", "-fcompile-resource=", "aj"},
1158 {"--save-temps", "-save-temps", 0},
1159 {"--shared", "-shared", 0},
1160 {"--silent", "-q", 0},
1161 {"--specs", "-specs=", "aj"},
1162 {"--static", "-static", 0},
1163 {"--std", "-std=", "aj"},
1164 {"--symbolic", "-symbolic", 0},
1165 {"--sysroot", "--sysroot=", "aj"},
1166 {"--time", "-time", 0},
1167 {"--trace-includes", "-H", 0},
1168 {"--traditional", "-traditional", 0},
1169 {"--traditional-cpp", "-traditional-cpp", 0},
1170 {"--trigraphs", "-trigraphs", 0},
1171 {"--undefine-macro", "-U", "aj"},
1172 {"--user-dependencies", "-MM", 0},
1173 {"--verbose", "-v", 0},
1174 {"--warn-", "-W", "*j"},
1175 {"--write-dependencies", "-MD", 0},
1176 {"--write-user-dependencies", "-MMD", 0},
1181 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1182 static const struct {
1183 const char *const option_found
;
1184 const char *const replacements
;
1185 } target_option_translations
[] =
1187 TARGET_OPTION_TRANSLATE_TABLE
,
1192 /* Translate the options described by *ARGCP and *ARGVP.
1193 Make a new vector and store it back in *ARGVP,
1194 and store its length in *ARGVC. */
1197 translate_options (int *argcp
, const char *const **argvp
)
1201 const char *const *argv
= *argvp
;
1202 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1203 const char **newv
= xmalloc (newvsize
);
1207 newv
[newindex
++] = argv
[i
++];
1211 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1215 target_option_translations
[tott_idx
].option_found
;
1218 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1225 for (sp
= target_option_translations
[tott_idx
].replacements
;
1232 newvsize
+= spaces
* sizeof (const char *);
1233 newv
= xrealloc (newv
, newvsize
);
1235 sp
= target_option_translations
[tott_idx
].replacements
;
1244 newv
[newindex
++] = np
;
1245 while (*np
!= ' ' && *np
)
1256 if (target_option_translations
[tott_idx
].option_found
)
1260 /* Translate -- options. */
1261 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1264 /* Find a mapping that applies to this option. */
1265 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1267 size_t optlen
= strlen (option_map
[j
].name
);
1268 size_t arglen
= strlen (argv
[i
]);
1269 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1270 const char *arginfo
= option_map
[j
].arg_info
;
1275 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1277 const char *arg
= 0;
1279 if (arglen
< optlen
)
1282 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1283 if (strlen (option_map
[k
].name
) >= arglen
1284 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1286 error ("ambiguous abbreviation %s", argv
[i
]);
1290 if (k
!= ARRAY_SIZE (option_map
))
1294 if (arglen
> optlen
)
1296 /* If the option has an argument, accept that. */
1297 if (argv
[i
][optlen
] == '=')
1298 arg
= argv
[i
] + optlen
+ 1;
1300 /* If this mapping requires extra text at end of name,
1301 accept that as "argument". */
1302 else if (strchr (arginfo
, '*') != 0)
1303 arg
= argv
[i
] + optlen
;
1305 /* Otherwise, extra text at end means mismatch.
1306 Try other mappings. */
1311 else if (strchr (arginfo
, '*') != 0)
1313 error ("incomplete '%s' option", option_map
[j
].name
);
1317 /* Handle arguments. */
1318 if (strchr (arginfo
, 'a') != 0)
1324 error ("missing argument to '%s' option",
1325 option_map
[j
].name
);
1332 else if (strchr (arginfo
, '*') != 0)
1334 else if (strchr (arginfo
, 'o') == 0)
1337 error ("extraneous argument to '%s' option",
1338 option_map
[j
].name
);
1342 /* Store the translation as one argv elt or as two. */
1343 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1344 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1348 newv
[newindex
++] = option_map
[j
].equivalent
;
1349 newv
[newindex
++] = arg
;
1352 newv
[newindex
++] = option_map
[j
].equivalent
;
1360 /* Handle old-fashioned options--just copy them through,
1361 with their arguments. */
1362 else if (argv
[i
][0] == '-')
1364 const char *p
= argv
[i
] + 1;
1368 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1369 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1370 else if (WORD_SWITCH_TAKES_ARG (p
))
1371 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1372 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1375 else if (! strcmp (p
, "Xlinker"))
1377 else if (! strcmp (p
, "Xpreprocessor"))
1379 else if (! strcmp (p
, "Xassembler"))
1382 /* Watch out for an option at the end of the command line that
1383 is missing arguments, and avoid skipping past the end of the
1385 if (nskip
+ i
> argc
)
1390 newv
[newindex
++] = argv
[i
++];
1395 /* Ordinary operands, or +e options. */
1396 newv
[newindex
++] = argv
[i
++];
1406 skip_whitespace (char *p
)
1410 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1411 be considered whitespace. */
1412 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1414 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1428 /* Structures to keep track of prefixes to try when looking for files. */
1432 const char *prefix
; /* String to prepend to the path. */
1433 struct prefix_list
*next
; /* Next in linked list. */
1434 int require_machine_suffix
; /* Don't use without machine_suffix. */
1435 /* 2 means try both machine_suffix and just_machine_suffix. */
1436 int priority
; /* Sort key - priority within list. */
1437 int os_multilib
; /* 1 if OS multilib scheme should be used,
1438 0 for GCC multilib scheme. */
1443 struct prefix_list
*plist
; /* List of prefixes to try */
1444 int max_len
; /* Max length of a prefix in PLIST */
1445 const char *name
; /* Name of this list (used in config stuff) */
1448 /* List of prefixes to try when looking for executables. */
1450 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1452 /* List of prefixes to try when looking for startup (crt0) files. */
1454 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1456 /* List of prefixes to try when looking for include files. */
1458 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1460 /* Suffix to attach to directories searched for commands.
1461 This looks like `MACHINE/VERSION/'. */
1463 static const char *machine_suffix
= 0;
1465 /* Suffix to attach to directories searched for commands.
1466 This is just `MACHINE/'. */
1468 static const char *just_machine_suffix
= 0;
1470 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1472 static const char *gcc_exec_prefix
;
1474 /* Adjusted value of standard_libexec_prefix. */
1476 static const char *gcc_libexec_prefix
;
1478 /* Default prefixes to attach to command names. */
1480 #ifndef STANDARD_STARTFILE_PREFIX_1
1481 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1483 #ifndef STANDARD_STARTFILE_PREFIX_2
1484 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1487 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1488 #undef MD_EXEC_PREFIX
1489 #undef MD_STARTFILE_PREFIX
1490 #undef MD_STARTFILE_PREFIX_1
1493 /* If no prefixes defined, use the null string, which will disable them. */
1494 #ifndef MD_EXEC_PREFIX
1495 #define MD_EXEC_PREFIX ""
1497 #ifndef MD_STARTFILE_PREFIX
1498 #define MD_STARTFILE_PREFIX ""
1500 #ifndef MD_STARTFILE_PREFIX_1
1501 #define MD_STARTFILE_PREFIX_1 ""
1504 /* These directories are locations set at configure-time based on the
1505 --prefix option provided to configure. Their initializers are
1506 defined in Makefile.in. These paths are not *directly* used when
1507 gcc_exec_prefix is set because, in that case, we know where the
1508 compiler has been installed, and use paths relative to that
1509 location instead. */
1510 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1511 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1512 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1513 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1515 /* For native compilers, these are well-known paths containing
1516 components that may be provided by the system. For cross
1517 compilers, these paths are not used. */
1518 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1519 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1520 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1521 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1522 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1523 static const char *const standard_startfile_prefix_1
1524 = STANDARD_STARTFILE_PREFIX_1
;
1525 static const char *const standard_startfile_prefix_2
1526 = STANDARD_STARTFILE_PREFIX_2
;
1528 /* A relative path to be used in finding the location of tools
1529 relative to the driver. */
1530 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1532 /* Subdirectory to use for locating libraries. Set by
1533 set_multilib_dir based on the compilation options. */
1535 static const char *multilib_dir
;
1537 /* Subdirectory to use for locating libraries in OS conventions. Set by
1538 set_multilib_dir based on the compilation options. */
1540 static const char *multilib_os_dir
;
1542 /* Structure to keep track of the specs that have been defined so far.
1543 These are accessed using %(specname) or %[specname] in a compiler
1548 /* The following 2 fields must be first */
1549 /* to allow EXTRA_SPECS to be initialized */
1550 const char *name
; /* name of the spec. */
1551 const char *ptr
; /* available ptr if no static pointer */
1553 /* The following fields are not initialized */
1554 /* by EXTRA_SPECS */
1555 const char **ptr_spec
; /* pointer to the spec itself. */
1556 struct spec_list
*next
; /* Next spec in linked list. */
1557 int name_len
; /* length of the name */
1558 int alloc_p
; /* whether string was allocated */
1561 #define INIT_STATIC_SPEC(NAME,PTR) \
1562 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1564 /* List of statically defined specs. */
1565 static struct spec_list static_specs
[] =
1567 INIT_STATIC_SPEC ("asm", &asm_spec
),
1568 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1569 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1570 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1571 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1572 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1573 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1574 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1575 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1576 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1577 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1578 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1579 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1580 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1581 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1582 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1583 INIT_STATIC_SPEC ("link", &link_spec
),
1584 INIT_STATIC_SPEC ("lib", &lib_spec
),
1585 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1586 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1587 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1588 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1589 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1590 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1591 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1592 INIT_STATIC_SPEC ("version", &compiler_version
),
1593 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1594 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1595 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1596 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1597 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1598 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1599 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1600 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1601 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1602 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1603 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1604 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1605 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1606 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1607 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1610 #ifdef EXTRA_SPECS /* additional specs needed */
1611 /* Structure to keep track of just the first two args of a spec_list.
1612 That is all that the EXTRA_SPECS macro gives us. */
1615 const char *const name
;
1616 const char *const ptr
;
1619 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1620 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1623 /* List of dynamically allocates specs that have been defined so far. */
1625 static struct spec_list
*specs
= (struct spec_list
*) 0;
1627 /* List of static spec functions. */
1629 static const struct spec_function static_spec_functions
[] =
1631 { "getenv", getenv_spec_function
},
1632 { "if-exists", if_exists_spec_function
},
1633 { "if-exists-else", if_exists_else_spec_function
},
1634 { "replace-outfile", replace_outfile_spec_function
},
1635 { "version-compare", version_compare_spec_function
},
1636 { "include", include_spec_function
},
1637 { "print-asm-header", print_asm_header_spec_function
},
1638 #ifdef EXTRA_SPEC_FUNCTIONS
1639 EXTRA_SPEC_FUNCTIONS
1644 static int processing_spec_function
;
1646 /* Add appropriate libgcc specs to OBSTACK, taking into account
1647 various permutations of -shared-libgcc, -shared, and such. */
1649 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1651 #ifndef USE_LD_AS_NEEDED
1652 #define USE_LD_AS_NEEDED 0
1656 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1657 const char *static_name
, const char *eh_name
)
1661 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1662 "%{!static:%{!static-libgcc:"
1663 #if USE_LD_AS_NEEDED
1664 "%{!shared-libgcc:",
1665 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1668 shared_name
, "%{!shared: ", static_name
, "}"
1672 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1673 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1677 "%{shared-libgcc:", shared_name
, "}"
1678 "%{!shared-libgcc:", static_name
, "}"
1681 "%{shared:", shared_name
, "}"
1686 obstack_grow (obstack
, buf
, strlen (buf
));
1689 #endif /* ENABLE_SHARED_LIBGCC */
1691 /* Initialize the specs lookup routines. */
1696 struct spec_list
*next
= (struct spec_list
*) 0;
1697 struct spec_list
*sl
= (struct spec_list
*) 0;
1701 return; /* Already initialized. */
1704 notice ("Using built-in specs.\n");
1707 extra_specs
= xcalloc (sizeof (struct spec_list
),
1708 ARRAY_SIZE (extra_specs_1
));
1710 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1712 sl
= &extra_specs
[i
];
1713 sl
->name
= extra_specs_1
[i
].name
;
1714 sl
->ptr
= extra_specs_1
[i
].ptr
;
1716 sl
->name_len
= strlen (sl
->name
);
1717 sl
->ptr_spec
= &sl
->ptr
;
1722 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1724 sl
= &static_specs
[i
];
1729 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1730 /* ??? If neither -shared-libgcc nor --static-libgcc was
1731 seen, then we should be making an educated guess. Some proposed
1732 heuristics for ELF include:
1734 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1735 program will be doing dynamic loading, which will likely
1736 need the shared libgcc.
1738 (2) If "-ldl", then it's also a fair bet that we're doing
1741 (3) For each ET_DYN we're linking against (either through -lfoo
1742 or /some/path/foo.so), check to see whether it or one of
1743 its dependencies depends on a shared libgcc.
1747 If the runtime is fixed to look for program headers instead
1748 of calling __register_frame_info at all, for each object,
1749 use the shared libgcc if any EH symbol referenced.
1751 If crtstuff is fixed to not invoke __register_frame_info
1752 automatically, for each object, use the shared libgcc if
1753 any non-empty unwind section found.
1755 Doing any of this probably requires invoking an external program to
1756 do the actual object file scanning. */
1758 const char *p
= libgcc_spec
;
1761 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1762 when given the proper command line arguments. */
1765 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1767 init_gcc_specs (&obstack
,
1769 #ifdef USE_LIBUNWIND_EXCEPTIONS
1775 #ifdef USE_LIBUNWIND_EXCEPTIONS
1776 # ifdef HAVE_LD_STATIC_DYNAMIC
1777 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1787 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1789 /* Ug. We don't know shared library extensions. Hope that
1790 systems that use this form don't do shared libraries. */
1791 init_gcc_specs (&obstack
,
1795 #ifdef USE_LIBUNWIND_EXCEPTIONS
1804 obstack_1grow (&obstack
, *p
);
1805 in_sep
= (*p
== ' ');
1810 obstack_1grow (&obstack
, '\0');
1811 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1814 #ifdef USE_AS_TRADITIONAL_FORMAT
1815 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1817 static const char tf
[] = "--traditional-format ";
1818 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1819 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1820 asm_spec
= XOBFINISH (&obstack
, const char *);
1824 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1825 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1826 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1827 link_spec
= XOBFINISH (&obstack
, const char *);
1833 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1834 removed; If the spec starts with a + then SPEC is added to the end of the
1838 set_spec (const char *name
, const char *spec
)
1840 struct spec_list
*sl
;
1841 const char *old_spec
;
1842 int name_len
= strlen (name
);
1845 /* If this is the first call, initialize the statically allocated specs. */
1848 struct spec_list
*next
= (struct spec_list
*) 0;
1849 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1851 sl
= &static_specs
[i
];
1858 /* See if the spec already exists. */
1859 for (sl
= specs
; sl
; sl
= sl
->next
)
1860 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1865 /* Not found - make it. */
1866 sl
= XNEW (struct spec_list
);
1867 sl
->name
= xstrdup (name
);
1868 sl
->name_len
= name_len
;
1869 sl
->ptr_spec
= &sl
->ptr
;
1871 *(sl
->ptr_spec
) = "";
1876 old_spec
= *(sl
->ptr_spec
);
1877 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1878 ? concat (old_spec
, spec
+ 1, NULL
)
1883 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1886 /* Free the old spec. */
1887 if (old_spec
&& sl
->alloc_p
)
1888 free (CONST_CAST(char *, old_spec
));
1893 /* Accumulate a command (program name and args), and run it. */
1895 /* Vector of pointers to arguments in the current line of specifications. */
1897 static const char **argbuf
;
1899 /* Number of elements allocated in argbuf. */
1901 static int argbuf_length
;
1903 /* Number of elements in argbuf currently in use (containing args). */
1905 static int argbuf_index
;
1907 /* Position in the argbuf array containing the name of the output file
1908 (the value associated with the "-o" flag). */
1910 static int have_o_argbuf_index
= 0;
1912 /* Were the options -c or -S passed. */
1913 static int have_c
= 0;
1915 /* Was the option -o passed. */
1916 static int have_o
= 0;
1918 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1919 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1922 static struct temp_name
{
1923 const char *suffix
; /* suffix associated with the code. */
1924 int length
; /* strlen (suffix). */
1925 int unique
; /* Indicates whether %g or %u/%U was used. */
1926 const char *filename
; /* associated filename. */
1927 int filename_length
; /* strlen (filename). */
1928 struct temp_name
*next
;
1931 /* Number of commands executed so far. */
1933 static int execution_count
;
1935 /* Number of commands that exited with a signal. */
1937 static int signal_count
;
1939 /* Name with which this program was invoked. */
1941 static const char *programname
;
1943 /* Allocate the argument vector. */
1949 argbuf
= XNEWVEC (const char *, argbuf_length
);
1952 /* Clear out the vector of arguments (after a command is executed). */
1960 /* Add one argument to the vector at the end.
1961 This is done when a space is seen or at the end of the line.
1962 If DELETE_ALWAYS is nonzero, the arg is a filename
1963 and the file should be deleted eventually.
1964 If DELETE_FAILURE is nonzero, the arg is a filename
1965 and the file should be deleted if this compilation fails. */
1968 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1970 if (argbuf_index
+ 1 == argbuf_length
)
1971 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1973 argbuf
[argbuf_index
++] = arg
;
1974 argbuf
[argbuf_index
] = 0;
1976 if (strcmp (arg
, "-o") == 0)
1977 have_o_argbuf_index
= argbuf_index
;
1978 if (delete_always
|| delete_failure
)
1979 record_temp_file (arg
, delete_always
, delete_failure
);
1982 /* Load specs from a file name named FILENAME, replacing occurrences of
1983 various different types of line-endings, \r\n, \n\r and just \r, with
1987 load_specs (const char *filename
)
1991 struct stat statbuf
;
1998 notice ("Reading specs from %s\n", filename
);
2000 /* Open and stat the file. */
2001 desc
= open (filename
, O_RDONLY
, 0);
2003 pfatal_with_name (filename
);
2004 if (stat (filename
, &statbuf
) < 0)
2005 pfatal_with_name (filename
);
2007 /* Read contents of file into BUFFER. */
2008 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2009 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2011 pfatal_with_name (filename
);
2012 buffer
[readlen
] = 0;
2015 specs
= XNEWVEC (char, readlen
+ 1);
2017 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2023 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2025 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2039 /* Read compilation specs from a file named FILENAME,
2040 replacing the default ones.
2042 A suffix which starts with `*' is a definition for
2043 one of the machine-specific sub-specs. The "suffix" should be
2044 *asm, *cc1, *cpp, *link, *startfile, etc.
2045 The corresponding spec is stored in asm_spec, etc.,
2046 rather than in the `compilers' vector.
2048 Anything invalid in the file is a fatal error. */
2051 read_specs (const char *filename
, int main_p
)
2056 buffer
= load_specs (filename
);
2058 /* Scan BUFFER for specs, putting them in the vector. */
2064 char *in
, *out
, *p1
, *p2
, *p3
;
2066 /* Advance P in BUFFER to the next nonblank nocomment line. */
2067 p
= skip_whitespace (p
);
2071 /* Is this a special command that starts with '%'? */
2072 /* Don't allow this for the main specs file, since it would
2073 encourage people to overwrite it. */
2074 if (*p
== '%' && !main_p
)
2077 while (*p
&& *p
!= '\n')
2083 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2084 && (p1
[sizeof "%include" - 1] == ' '
2085 || p1
[sizeof "%include" - 1] == '\t'))
2089 p1
+= sizeof ("%include");
2090 while (*p1
== ' ' || *p1
== '\t')
2093 if (*p1
++ != '<' || p
[-2] != '>')
2094 fatal ("specs %%include syntax malformed after %ld characters",
2095 (long) (p1
- buffer
+ 1));
2098 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2099 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2102 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2103 && (p1
[sizeof "%include_noerr" - 1] == ' '
2104 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2108 p1
+= sizeof "%include_noerr";
2109 while (*p1
== ' ' || *p1
== '\t')
2112 if (*p1
++ != '<' || p
[-2] != '>')
2113 fatal ("specs %%include syntax malformed after %ld characters",
2114 (long) (p1
- buffer
+ 1));
2117 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2119 read_specs (new_filename
, FALSE
);
2120 else if (verbose_flag
)
2121 notice ("could not find specs file %s\n", p1
);
2124 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2125 && (p1
[sizeof "%rename" - 1] == ' '
2126 || p1
[sizeof "%rename" - 1] == '\t'))
2129 struct spec_list
*sl
;
2130 struct spec_list
*newsl
;
2132 /* Get original name. */
2133 p1
+= sizeof "%rename";
2134 while (*p1
== ' ' || *p1
== '\t')
2137 if (! ISALPHA ((unsigned char) *p1
))
2138 fatal ("specs %%rename syntax malformed after %ld characters",
2139 (long) (p1
- buffer
));
2142 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2145 if (*p2
!= ' ' && *p2
!= '\t')
2146 fatal ("specs %%rename syntax malformed after %ld characters",
2147 (long) (p2
- buffer
));
2151 while (*p2
== ' ' || *p2
== '\t')
2154 if (! ISALPHA ((unsigned char) *p2
))
2155 fatal ("specs %%rename syntax malformed after %ld characters",
2156 (long) (p2
- buffer
));
2158 /* Get new spec name. */
2160 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2164 fatal ("specs %%rename syntax malformed after %ld characters",
2165 (long) (p3
- buffer
));
2168 for (sl
= specs
; sl
; sl
= sl
->next
)
2169 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2173 fatal ("specs %s spec was not found to be renamed", p1
);
2175 if (strcmp (p1
, p2
) == 0)
2178 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2179 if (strcmp (newsl
->name
, p2
) == 0)
2180 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2185 notice ("rename spec %s to %s\n", p1
, p2
);
2187 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2191 set_spec (p2
, *(sl
->ptr_spec
));
2193 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2195 *(sl
->ptr_spec
) = "";
2200 fatal ("specs unknown %% command after %ld characters",
2201 (long) (p1
- buffer
));
2204 /* Find the colon that should end the suffix. */
2206 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2209 /* The colon shouldn't be missing. */
2211 fatal ("specs file malformed after %ld characters",
2212 (long) (p1
- buffer
));
2214 /* Skip back over trailing whitespace. */
2216 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2219 /* Copy the suffix to a string. */
2220 suffix
= save_string (p
, p2
- p
);
2221 /* Find the next line. */
2222 p
= skip_whitespace (p1
+ 1);
2224 fatal ("specs file malformed after %ld characters",
2225 (long) (p
- buffer
));
2228 /* Find next blank line or end of string. */
2229 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2232 /* Specs end at the blank line and do not include the newline. */
2233 spec
= save_string (p
, p1
- p
);
2236 /* Delete backslash-newline sequences from the spec. */
2241 if (in
[0] == '\\' && in
[1] == '\n')
2243 else if (in
[0] == '#')
2244 while (*in
&& *in
!= '\n')
2252 if (suffix
[0] == '*')
2254 if (! strcmp (suffix
, "*link_command"))
2255 link_command_spec
= spec
;
2257 set_spec (suffix
+ 1, spec
);
2261 /* Add this pair to the vector. */
2263 = xrealloc (compilers
,
2264 (n_compilers
+ 2) * sizeof (struct compiler
));
2266 compilers
[n_compilers
].suffix
= suffix
;
2267 compilers
[n_compilers
].spec
= spec
;
2269 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2273 link_command_spec
= spec
;
2276 if (link_command_spec
== 0)
2277 fatal ("spec file has no spec for linking");
2280 /* Record the names of temporary files we tell compilers to write,
2281 and delete them at the end of the run. */
2283 /* This is the common prefix we use to make temp file names.
2284 It is chosen once for each run of this program.
2285 It is substituted into a spec by %g or %j.
2286 Thus, all temp file names contain this prefix.
2287 In practice, all temp file names start with this prefix.
2289 This prefix comes from the envvar TMPDIR if it is defined;
2290 otherwise, from the P_tmpdir macro if that is defined;
2291 otherwise, in /usr/tmp or /tmp;
2292 or finally the current directory if all else fails. */
2294 static const char *temp_filename
;
2296 /* Length of the prefix. */
2298 static int temp_filename_length
;
2300 /* Define the list of temporary files to delete. */
2305 struct temp_file
*next
;
2308 /* Queue of files to delete on success or failure of compilation. */
2309 static struct temp_file
*always_delete_queue
;
2310 /* Queue of files to delete on failure of compilation. */
2311 static struct temp_file
*failure_delete_queue
;
2313 /* Record FILENAME as a file to be deleted automatically.
2314 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2315 otherwise delete it in any case.
2316 FAIL_DELETE nonzero means delete it if a compilation step fails;
2317 otherwise delete it in any case. */
2320 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2322 char *const name
= xstrdup (filename
);
2326 struct temp_file
*temp
;
2327 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2328 if (! strcmp (name
, temp
->name
))
2331 temp
= XNEW (struct temp_file
);
2332 temp
->next
= always_delete_queue
;
2334 always_delete_queue
= temp
;
2341 struct temp_file
*temp
;
2342 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2343 if (! strcmp (name
, temp
->name
))
2346 temp
= XNEW (struct temp_file
);
2347 temp
->next
= failure_delete_queue
;
2349 failure_delete_queue
= temp
;
2355 /* Delete all the temporary files whose names we previously recorded. */
2357 #ifndef DELETE_IF_ORDINARY
2358 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2361 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2362 if (unlink (NAME) < 0) \
2364 perror_with_name (NAME); \
2369 delete_if_ordinary (const char *name
)
2375 printf ("Delete %s? (y or n) ", name
);
2379 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2382 if (i
== 'y' || i
== 'Y')
2384 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2388 delete_temp_files (void)
2390 struct temp_file
*temp
;
2392 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2393 delete_if_ordinary (temp
->name
);
2394 always_delete_queue
= 0;
2397 /* Delete all the files to be deleted on error. */
2400 delete_failure_queue (void)
2402 struct temp_file
*temp
;
2404 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2405 delete_if_ordinary (temp
->name
);
2409 clear_failure_queue (void)
2411 failure_delete_queue
= 0;
2414 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2416 If DO_MULTI is true iterate over the paths twice, first with multilib
2417 suffix then without, otherwise iterate over the paths once without
2418 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2419 to avoid visiting the same path twice, but we could do better. For
2420 instance, /usr/lib/../lib is considered different from /usr/lib.
2421 At least EXTRA_SPACE chars past the end of the path passed to
2422 CALLBACK are available for use by the callback.
2423 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2425 Returns the value returned by CALLBACK. */
2428 for_each_path (const struct path_prefix
*paths
,
2431 void *(*callback
) (char *, void *),
2432 void *callback_info
)
2434 struct prefix_list
*pl
;
2435 const char *multi_dir
= NULL
;
2436 const char *multi_os_dir
= NULL
;
2437 const char *multi_suffix
;
2438 const char *just_multi_suffix
;
2441 bool skip_multi_dir
= false;
2442 bool skip_multi_os_dir
= false;
2444 multi_suffix
= machine_suffix
;
2445 just_multi_suffix
= just_machine_suffix
;
2446 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2448 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2449 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2450 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2452 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2453 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2457 size_t multi_dir_len
= 0;
2458 size_t multi_os_dir_len
= 0;
2460 size_t just_suffix_len
;
2464 multi_dir_len
= strlen (multi_dir
);
2466 multi_os_dir_len
= strlen (multi_os_dir
);
2467 suffix_len
= strlen (multi_suffix
);
2468 just_suffix_len
= strlen (just_multi_suffix
);
2472 len
= paths
->max_len
+ extra_space
+ 1;
2473 if (suffix_len
> multi_os_dir_len
)
2476 len
+= multi_os_dir_len
;
2477 path
= XNEWVEC (char, len
);
2480 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2482 len
= strlen (pl
->prefix
);
2483 memcpy (path
, pl
->prefix
, len
);
2485 /* Look first in MACHINE/VERSION subdirectory. */
2486 if (!skip_multi_dir
)
2488 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2489 ret
= callback (path
, callback_info
);
2494 /* Some paths are tried with just the machine (ie. target)
2495 subdir. This is used for finding as, ld, etc. */
2497 && pl
->require_machine_suffix
== 2)
2499 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2500 ret
= callback (path
, callback_info
);
2505 /* Now try the base path. */
2506 if (!pl
->require_machine_suffix
2507 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2509 const char *this_multi
;
2510 size_t this_multi_len
;
2512 if (pl
->os_multilib
)
2514 this_multi
= multi_os_dir
;
2515 this_multi_len
= multi_os_dir_len
;
2519 this_multi
= multi_dir
;
2520 this_multi_len
= multi_dir_len
;
2524 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2528 ret
= callback (path
, callback_info
);
2536 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2539 /* Run through the paths again, this time without multilibs.
2540 Don't repeat any we have already seen. */
2543 free (CONST_CAST (char *, multi_dir
));
2545 free (CONST_CAST (char *, multi_suffix
));
2546 multi_suffix
= machine_suffix
;
2547 free (CONST_CAST (char *, just_multi_suffix
));
2548 just_multi_suffix
= just_machine_suffix
;
2551 skip_multi_dir
= true;
2554 free (CONST_CAST (char *, multi_os_dir
));
2555 multi_os_dir
= NULL
;
2558 skip_multi_os_dir
= true;
2563 free (CONST_CAST (char *, multi_dir
));
2564 free (CONST_CAST (char *, multi_suffix
));
2565 free (CONST_CAST (char *, just_multi_suffix
));
2568 free (CONST_CAST (char *, multi_os_dir
));
2574 /* Callback for build_search_list. Adds path to obstack being built. */
2576 struct add_to_obstack_info
{
2583 add_to_obstack (char *path
, void *data
)
2585 struct add_to_obstack_info
*info
= data
;
2587 if (info
->check_dir
&& !is_directory (path
, false))
2590 if (!info
->first_time
)
2591 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2593 obstack_grow (info
->ob
, path
, strlen (path
));
2595 info
->first_time
= false;
2599 /* Add or change the value of an environment variable, outputting the
2600 change to standard error if in verbose mode. */
2602 xputenv (const char *string
)
2605 notice ("%s\n", string
);
2606 putenv (CONST_CAST (char *, string
));
2609 /* Build a list of search directories from PATHS.
2610 PREFIX is a string to prepend to the list.
2611 If CHECK_DIR_P is true we ensure the directory exists.
2612 If DO_MULTI is true, multilib paths are output first, then
2614 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2615 It is also used by the --print-search-dirs flag. */
2618 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2619 bool check_dir
, bool do_multi
)
2621 struct add_to_obstack_info info
;
2623 info
.ob
= &collect_obstack
;
2624 info
.check_dir
= check_dir
;
2625 info
.first_time
= true;
2627 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2628 obstack_1grow (&collect_obstack
, '=');
2630 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2632 obstack_1grow (&collect_obstack
, '\0');
2633 return XOBFINISH (&collect_obstack
, char *);
2636 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2640 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2643 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2646 /* Check whether NAME can be accessed in MODE. This is like access,
2647 except that it never considers directories to be executable. */
2650 access_check (const char *name
, int mode
)
2656 if (stat (name
, &st
) < 0
2657 || S_ISDIR (st
.st_mode
))
2661 return access (name
, mode
);
2664 /* Callback for find_a_file. Appends the file name to the directory
2665 path. If the resulting file exists in the right mode, return the
2666 full pathname to the file. */
2668 struct file_at_path_info
{
2677 file_at_path (char *path
, void *data
)
2679 struct file_at_path_info
*info
= data
;
2680 size_t len
= strlen (path
);
2682 memcpy (path
+ len
, info
->name
, info
->name_len
);
2683 len
+= info
->name_len
;
2685 /* Some systems have a suffix for executable files.
2686 So try appending that first. */
2687 if (info
->suffix_len
)
2689 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2690 if (access_check (path
, info
->mode
) == 0)
2695 if (access_check (path
, info
->mode
) == 0)
2701 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2702 access to check permissions. If DO_MULTI is true, search multilib
2703 paths then non-multilib paths, otherwise do not search multilib paths.
2704 Return 0 if not found, otherwise return its name, allocated with malloc. */
2707 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2710 struct file_at_path_info info
;
2712 #ifdef DEFAULT_ASSEMBLER
2713 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2714 return xstrdup (DEFAULT_ASSEMBLER
);
2717 #ifdef DEFAULT_LINKER
2718 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2719 return xstrdup (DEFAULT_LINKER
);
2722 /* Determine the filename to execute (special case for absolute paths). */
2724 if (IS_ABSOLUTE_PATH (name
))
2726 if (access (name
, mode
) == 0)
2727 return xstrdup (name
);
2733 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2734 info
.name_len
= strlen (info
.name
);
2735 info
.suffix_len
= strlen (info
.suffix
);
2738 return for_each_path (pprefix
, do_multi
, info
.name_len
+ info
.suffix_len
,
2739 file_at_path
, &info
);
2742 /* Ranking of prefixes in the sort list. -B prefixes are put before
2745 enum path_prefix_priority
2747 PREFIX_PRIORITY_B_OPT
,
2748 PREFIX_PRIORITY_LAST
2751 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2752 order according to PRIORITY. Within each PRIORITY, new entries are
2755 If WARN is nonzero, we will warn if no file is found
2756 through this prefix. WARN should point to an int
2757 which will be set to 1 if this entry is used.
2759 COMPONENT is the value to be passed to update_path.
2761 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2762 the complete value of machine_suffix.
2763 2 means try both machine_suffix and just_machine_suffix. */
2766 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2767 const char *component
, /* enum prefix_priority */ int priority
,
2768 int require_machine_suffix
, int os_multilib
)
2770 struct prefix_list
*pl
, **prev
;
2773 for (prev
= &pprefix
->plist
;
2774 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2775 prev
= &(*prev
)->next
)
2778 /* Keep track of the longest prefix. */
2780 prefix
= update_path (prefix
, component
);
2781 len
= strlen (prefix
);
2782 if (len
> pprefix
->max_len
)
2783 pprefix
->max_len
= len
;
2785 pl
= XNEW (struct prefix_list
);
2786 pl
->prefix
= prefix
;
2787 pl
->require_machine_suffix
= require_machine_suffix
;
2788 pl
->priority
= priority
;
2789 pl
->os_multilib
= os_multilib
;
2791 /* Insert after PREV. */
2796 /* Same as add_prefix, but prepending target_system_root to prefix. */
2797 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2799 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2800 const char *component
,
2801 /* enum prefix_priority */ int priority
,
2802 int require_machine_suffix
, int os_multilib
)
2804 if (!IS_ABSOLUTE_PATH (prefix
))
2805 fatal ("system path '%s' is not absolute", prefix
);
2807 if (target_system_root
)
2809 if (target_sysroot_suffix
)
2810 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2811 prefix
= concat (target_system_root
, prefix
, NULL
);
2813 /* We have to override this because GCC's notion of sysroot
2814 moves along with GCC. */
2818 add_prefix (pprefix
, prefix
, component
, priority
,
2819 require_machine_suffix
, os_multilib
);
2822 /* Execute the command specified by the arguments on the current line of spec.
2823 When using pipes, this includes several piped-together commands
2824 with `|' between them.
2826 Return 0 if successful, -1 if failed. */
2832 int n_commands
; /* # of command. */
2834 struct pex_obj
*pex
;
2837 const char *prog
; /* program name. */
2838 const char **argv
; /* vector of args. */
2841 struct command
*commands
; /* each command buffer with above info. */
2843 gcc_assert (!processing_spec_function
);
2845 /* Count # of piped commands. */
2846 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2847 if (strcmp (argbuf
[i
], "|") == 0)
2850 /* Get storage for each command. */
2851 commands
= alloca (n_commands
* sizeof (struct command
));
2853 /* Split argbuf into its separate piped processes,
2854 and record info about each one.
2855 Also search for the programs that are to be run. */
2857 commands
[0].prog
= argbuf
[0]; /* first command. */
2858 commands
[0].argv
= &argbuf
[0];
2859 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2862 commands
[0].argv
[0] = string
;
2864 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2865 if (strcmp (argbuf
[i
], "|") == 0)
2866 { /* each command. */
2867 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2868 fatal ("-pipe not supported");
2870 argbuf
[i
] = 0; /* termination of command args. */
2871 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2872 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2873 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2876 commands
[n_commands
].argv
[0] = string
;
2880 argbuf
[argbuf_index
] = 0;
2882 /* If -v, print what we are about to do, and maybe query. */
2886 /* For help listings, put a blank line between sub-processes. */
2887 if (print_help_list
)
2888 fputc ('\n', stderr
);
2890 /* Print each piped command as a separate line. */
2891 for (i
= 0; i
< n_commands
; i
++)
2893 const char *const *j
;
2895 if (verbose_only_flag
)
2897 for (j
= commands
[i
].argv
; *j
; j
++)
2900 fprintf (stderr
, " \"");
2901 for (p
= *j
; *p
; ++p
)
2903 if (*p
== '"' || *p
== '\\' || *p
== '$')
2904 fputc ('\\', stderr
);
2907 fputc ('"', stderr
);
2911 for (j
= commands
[i
].argv
; *j
; j
++)
2912 fprintf (stderr
, " %s", *j
);
2914 /* Print a pipe symbol after all but the last command. */
2915 if (i
+ 1 != n_commands
)
2916 fprintf (stderr
, " |");
2917 fprintf (stderr
, "\n");
2920 if (verbose_only_flag
!= 0)
2922 /* verbose_only_flag should act as if the spec was
2923 executed, so increment execution_count before
2924 returning. This prevents spurious warnings about
2925 unused linker input files, etc. */
2930 notice ("\nGo ahead? (y or n) ");
2934 while (getchar () != '\n')
2937 if (i
!= 'y' && i
!= 'Y')
2942 #ifdef ENABLE_VALGRIND_CHECKING
2943 /* Run the each command through valgrind. To simplify prepending the
2944 path to valgrind and the option "-q" (for quiet operation unless
2945 something triggers), we allocate a separate argv array. */
2947 for (i
= 0; i
< n_commands
; i
++)
2953 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2956 argv
= alloca ((argc
+ 3) * sizeof (char *));
2958 argv
[0] = VALGRIND_PATH
;
2960 for (j
= 2; j
< argc
+ 2; j
++)
2961 argv
[j
] = commands
[i
].argv
[j
- 2];
2964 commands
[i
].argv
= argv
;
2965 commands
[i
].prog
= argv
[0];
2969 /* Run each piped subprocess. */
2971 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2972 programname
, temp_filename
);
2974 pfatal_with_name (_("pex_init failed"));
2976 for (i
= 0; i
< n_commands
; i
++)
2980 const char *string
= commands
[i
].argv
[0];
2982 errmsg
= pex_run (pex
,
2983 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2984 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2985 string
, CONST_CAST (char **, commands
[i
].argv
),
2994 pfatal_with_name (errmsg
);
2998 if (string
!= commands
[i
].prog
)
2999 free (CONST_CAST (char *, string
));
3004 /* Wait for all the subprocesses to finish. */
3008 struct pex_time
*times
= NULL
;
3011 statuses
= alloca (n_commands
* sizeof (int));
3012 if (!pex_get_status (pex
, n_commands
, statuses
))
3013 pfatal_with_name (_("failed to get exit status"));
3017 times
= alloca (n_commands
* sizeof (struct pex_time
));
3018 if (!pex_get_times (pex
, n_commands
, times
))
3019 pfatal_with_name (_("failed to get process times"));
3024 for (i
= 0; i
< n_commands
; ++i
)
3026 int status
= statuses
[i
];
3028 if (WIFSIGNALED (status
))
3031 /* SIGPIPE is a special case. It happens in -pipe mode
3032 when the compiler dies before the preprocessor is done,
3033 or the assembler dies before the compiler is done.
3034 There's generally been an error already, and this is
3035 just fallout. So don't generate another error unless
3036 we would otherwise have succeeded. */
3037 if (WTERMSIG (status
) == SIGPIPE
3038 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3046 Internal error: %s (program %s)\n\
3047 Please submit a full bug report.\n\
3048 See %s for instructions.",
3049 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3052 else if (WIFEXITED (status
)
3053 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3055 if (WEXITSTATUS (status
) > greatest_status
)
3056 greatest_status
= WEXITSTATUS (status
);
3062 struct pex_time
*pt
= ×
[i
];
3065 ut
= ((double) pt
->user_seconds
3066 + (double) pt
->user_microseconds
/ 1.0e6
);
3067 st
= ((double) pt
->system_seconds
3068 + (double) pt
->system_microseconds
/ 1.0e6
);
3071 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3079 /* Find all the switches given to us
3080 and make a vector describing them.
3081 The elements of the vector are strings, one per switch given.
3082 If a switch uses following arguments, then the `part1' field
3083 is the switch itself and the `args' field
3084 is a null-terminated vector containing the following arguments.
3085 The `live_cond' field is:
3087 1 if the switch is true in a conditional spec,
3088 -1 if false (overridden by a later switch)
3089 -2 if this switch should be ignored (used in %<S)
3090 The `validated' field is nonzero if any spec has looked at this switch;
3091 if it remains zero at the end of the run, it must be meaningless. */
3094 #define SWITCH_FALSE -1
3095 #define SWITCH_IGNORE -2
3096 #define SWITCH_LIVE 1
3103 unsigned char validated
;
3104 unsigned char ordering
;
3107 static struct switchstr
*switches
;
3109 static int n_switches
;
3111 /* Language is one of three things:
3113 1) The name of a real programming language.
3114 2) NULL, indicating that no one has figured out
3116 3) '*', indicating that the file should be passed
3121 const char *language
;
3122 struct compiler
*incompiler
;
3127 /* Also a vector of input files specified. */
3129 static struct infile
*infiles
;
3133 /* True if multiple input files are being compiled to a single
3136 static bool combine_inputs
;
3138 /* This counts the number of libraries added by lang_specific_driver, so that
3139 we can tell if there were any user supplied any files or libraries. */
3141 static int added_libraries
;
3143 /* And a vector of corresponding output files is made up later. */
3145 const char **outfiles
;
3147 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3149 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3150 is true if we should look for an executable suffix. DO_OBJ
3151 is true if we should look for an object suffix. */
3154 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3155 int do_obj ATTRIBUTE_UNUSED
)
3157 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3165 len
= strlen (name
);
3167 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3168 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3169 if (do_obj
&& len
> 2
3170 && name
[len
- 2] == '.'
3171 && name
[len
- 1] == 'o')
3173 obstack_grow (&obstack
, name
, len
- 2);
3174 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3175 name
= XOBFINISH (&obstack
, const char *);
3179 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3180 /* If there is no filetype, make it the executable suffix (which includes
3181 the "."). But don't get confused if we have just "-o". */
3182 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3185 for (i
= len
- 1; i
>= 0; i
--)
3186 if (IS_DIR_SEPARATOR (name
[i
]))
3189 for (i
++; i
< len
; i
++)
3193 obstack_grow (&obstack
, name
, len
);
3194 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3195 strlen (TARGET_EXECUTABLE_SUFFIX
));
3196 name
= XOBFINISH (&obstack
, const char *);
3203 /* Display the command line switches accepted by gcc. */
3207 printf (_("Usage: %s [options] file...\n"), programname
);
3208 fputs (_("Options:\n"), stdout
);
3210 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3211 fputs (_(" --help Display this information\n"), stdout
);
3212 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3213 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3214 fputs (_(" Display specific types of command line options\n"), stdout
);
3216 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3217 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3218 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3219 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3220 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3221 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3222 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3223 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3224 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3226 -print-multi-lib Display the mapping between command line options and\n\
3227 multiple library search directories\n"), stdout
);
3228 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3229 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3230 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3231 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3232 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3233 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3234 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3235 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3236 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3237 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3238 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3239 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3240 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3241 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3243 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3244 and libraries\n"), stdout
);
3245 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3246 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3247 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3248 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3249 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3250 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3251 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3252 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3253 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3255 -x <language> Specify the language of the following input files\n\
3256 Permissible languages include: c c++ assembler none\n\
3257 'none' means revert to the default behavior of\n\
3258 guessing the language based on the file's extension\n\
3262 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3263 passed on to the various sub-processes invoked by %s. In order to pass\n\
3264 other options on to these processes the -W<letter> options must be used.\n\
3267 /* The rest of the options are displayed by invocations of the various
3272 add_preprocessor_option (const char *option
, int len
)
3274 n_preprocessor_options
++;
3276 if (! preprocessor_options
)
3277 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3279 preprocessor_options
= xrealloc (preprocessor_options
,
3280 n_preprocessor_options
* sizeof (char *));
3282 preprocessor_options
[n_preprocessor_options
- 1] =
3283 save_string (option
, len
);
3287 add_assembler_option (const char *option
, int len
)
3289 n_assembler_options
++;
3291 if (! assembler_options
)
3292 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3294 assembler_options
= xrealloc (assembler_options
,
3295 n_assembler_options
* sizeof (char *));
3297 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3301 add_linker_option (const char *option
, int len
)
3305 if (! linker_options
)
3306 linker_options
= XNEWVEC (char *, n_linker_options
);
3308 linker_options
= xrealloc (linker_options
,
3309 n_linker_options
* sizeof (char *));
3311 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3314 /* Create the vector `switches' and its contents.
3315 Store its length in `n_switches'. */
3318 process_command (int argc
, const char **argv
)
3323 const char *spec_lang
= 0;
3324 int last_language_n_infiles
;
3325 int lang_n_infiles
= 0;
3326 #ifdef MODIFY_TARGET_NAME
3327 int is_modify_target_name
;
3330 const char *tooldir_prefix
;
3332 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3336 added_libraries
= 0;
3338 /* Figure compiler version from version string. */
3340 compiler_version
= temp1
= xstrdup (version_string
);
3342 for (; *temp1
; ++temp1
)
3351 /* If there is a -V or -b option (or both), process it now, before
3352 trying to interpret the rest of the command line.
3353 Use heuristic that all configuration names must have at least
3354 one dash '-'. This allows us to pass options starting with -b. */
3355 if (argc
> 1 && argv
[1][0] == '-'
3356 && (argv
[1][1] == 'V' ||
3357 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3359 const char *new_version
= DEFAULT_TARGET_VERSION
;
3360 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3361 const char *progname
= argv
[0];
3366 while (argc
> 1 && argv
[1][0] == '-'
3367 && (argv
[1][1] == 'V' ||
3368 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3370 char opt
= argv
[1][1];
3372 if (argv
[1][2] != '\0')
3385 fatal ("'-%c' option must have argument", opt
);
3392 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3393 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3395 new_argv0
= xmemdup (progname
, baselen
,
3396 baselen
+ concat_length (new_version
, new_machine
,
3397 "-gcc-", NULL
) + 1);
3398 strcpy (new_argv0
+ baselen
, new_machine
);
3399 strcat (new_argv0
, "-gcc-");
3400 strcat (new_argv0
, new_version
);
3402 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3403 (argc
+ 1) * sizeof (argv
[0]));
3404 new_argv
[0] = new_argv0
;
3406 execvp (new_argv0
, new_argv
);
3407 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3410 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3411 see if we can create it from the pathname specified in argv[0]. */
3413 gcc_libexec_prefix
= standard_libexec_prefix
;
3415 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3416 if (!gcc_exec_prefix
)
3418 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3419 standard_exec_prefix
);
3420 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3421 standard_bindir_prefix
,
3422 standard_libexec_prefix
);
3423 if (gcc_exec_prefix
)
3424 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3428 /* make_relative_prefix requires a program name, but
3429 GCC_EXEC_PREFIX is typically a directory name with a trailing
3430 / (which is ignored by make_relative_prefix), so append a
3432 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3433 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3434 standard_exec_prefix
,
3435 standard_libexec_prefix
);
3437 /* The path is unrelocated, so fallback to the original setting. */
3438 if (!gcc_libexec_prefix
)
3439 gcc_libexec_prefix
= standard_libexec_prefix
;
3445 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3446 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3447 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3449 if (gcc_exec_prefix
)
3451 int len
= strlen (gcc_exec_prefix
);
3453 if (len
> (int) sizeof ("/lib/gcc/") - 1
3454 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3456 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3457 if (IS_DIR_SEPARATOR (*temp
)
3458 && strncmp (temp
+ 1, "lib", 3) == 0
3459 && IS_DIR_SEPARATOR (temp
[4])
3460 && strncmp (temp
+ 5, "gcc", 3) == 0)
3461 len
-= sizeof ("/lib/gcc/") - 1;
3464 set_std_prefix (gcc_exec_prefix
, len
);
3465 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3466 PREFIX_PRIORITY_LAST
, 0, 0);
3467 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3468 PREFIX_PRIORITY_LAST
, 0, 0);
3471 /* COMPILER_PATH and LIBRARY_PATH have values
3472 that are lists of directory names with colons. */
3474 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3477 const char *startp
, *endp
;
3478 char *nstore
= alloca (strlen (temp
) + 3);
3480 startp
= endp
= temp
;
3483 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3485 strncpy (nstore
, startp
, endp
- startp
);
3487 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3488 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3490 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3491 nstore
[endp
- startp
+ 1] = 0;
3494 nstore
[endp
- startp
] = 0;
3495 add_prefix (&exec_prefixes
, nstore
, 0,
3496 PREFIX_PRIORITY_LAST
, 0, 0);
3497 add_prefix (&include_prefixes
, nstore
, 0,
3498 PREFIX_PRIORITY_LAST
, 0, 0);
3501 endp
= startp
= endp
+ 1;
3508 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3509 if (temp
&& *cross_compile
== '0')
3511 const char *startp
, *endp
;
3512 char *nstore
= alloca (strlen (temp
) + 3);
3514 startp
= endp
= temp
;
3517 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3519 strncpy (nstore
, startp
, endp
- startp
);
3521 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3522 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3524 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3525 nstore
[endp
- startp
+ 1] = 0;
3528 nstore
[endp
- startp
] = 0;
3529 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3530 PREFIX_PRIORITY_LAST
, 0, 1);
3533 endp
= startp
= endp
+ 1;
3540 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3541 GET_ENVIRONMENT (temp
, "LPATH");
3542 if (temp
&& *cross_compile
== '0')
3544 const char *startp
, *endp
;
3545 char *nstore
= alloca (strlen (temp
) + 3);
3547 startp
= endp
= temp
;
3550 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3552 strncpy (nstore
, startp
, endp
- startp
);
3554 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3555 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3557 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3558 nstore
[endp
- startp
+ 1] = 0;
3561 nstore
[endp
- startp
] = 0;
3562 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3563 PREFIX_PRIORITY_LAST
, 0, 1);
3566 endp
= startp
= endp
+ 1;
3573 /* Convert new-style -- options to old-style. */
3574 translate_options (&argc
, (const char *const **) &argv
);
3576 /* Do language-specific adjustment/addition of flags. */
3577 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3579 /* Scan argv twice. Here, the first time, just count how many switches
3580 there will be in their vector, and how many input files in theirs.
3581 Here we also parse the switches that cc itself uses (e.g. -v). */
3583 for (i
= 1; i
< argc
; i
++)
3585 if (! strcmp (argv
[i
], "-dumpspecs"))
3587 struct spec_list
*sl
;
3589 for (sl
= specs
; sl
; sl
= sl
->next
)
3590 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3591 if (link_command_spec
)
3592 printf ("*link_command:\n%s\n\n", link_command_spec
);
3595 else if (! strcmp (argv
[i
], "-dumpversion"))
3597 printf ("%s\n", spec_version
);
3600 else if (! strcmp (argv
[i
], "-dumpmachine"))
3602 printf ("%s\n", spec_machine
);
3605 else if (strcmp (argv
[i
], "-fversion") == 0)
3607 /* translate_options () has turned --version into -fversion. */
3608 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
3610 printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
3612 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3613 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3617 else if (strcmp (argv
[i
], "-fhelp") == 0)
3619 /* translate_options () has turned --help into -fhelp. */
3620 print_help_list
= 1;
3622 /* We will be passing a dummy file on to the sub-processes. */
3626 /* CPP driver cannot obtain switch from cc1_options. */
3628 add_preprocessor_option ("--help", 6);
3629 add_assembler_option ("--help", 6);
3630 add_linker_option ("--help", 6);
3632 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3634 /* translate_options () has turned --help into -fhelp. */
3635 print_subprocess_help
= 2;
3637 /* We will be passing a dummy file on to the sub-processes. */
3641 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3643 /* translate_options() has turned --target-help into -ftarget-help. */
3644 print_subprocess_help
= 1;
3646 /* We will be passing a dummy file on to the sub-processes. */
3650 /* CPP driver cannot obtain switch from cc1_options. */
3652 add_preprocessor_option ("--target-help", 13);
3653 add_assembler_option ("--target-help", 13);
3654 add_linker_option ("--target-help", 13);
3656 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3658 pass_exit_codes
= 1;
3661 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3662 print_search_dirs
= 1;
3663 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3664 print_file_name
= "libgcc.a";
3665 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3666 print_file_name
= argv
[i
] + 17;
3667 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3668 print_prog_name
= argv
[i
] + 17;
3669 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3670 print_multi_lib
= 1;
3671 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3672 print_multi_directory
= 1;
3673 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3674 print_multi_os_directory
= 1;
3675 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3676 print_sysroot_headers_suffix
= 1;
3677 else if (! strncmp (argv
[i
], "-Wa,", 4))
3680 /* Pass the rest of this option to the assembler. */
3682 /* Split the argument at commas. */
3684 for (j
= 4; argv
[i
][j
]; j
++)
3685 if (argv
[i
][j
] == ',')
3687 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3691 /* Record the part after the last comma. */
3692 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3694 else if (! strncmp (argv
[i
], "-Wp,", 4))
3697 /* Pass the rest of this option to the preprocessor. */
3699 /* Split the argument at commas. */
3701 for (j
= 4; argv
[i
][j
]; j
++)
3702 if (argv
[i
][j
] == ',')
3704 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3708 /* Record the part after the last comma. */
3709 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3711 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3712 /* The +e options to the C++ front-end. */
3714 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3717 /* Split the argument at commas. */
3718 for (j
= 3; argv
[i
][j
]; j
++)
3719 n_infiles
+= (argv
[i
][j
] == ',');
3721 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3724 fatal ("argument to '-Xlinker' is missing");
3729 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3732 fatal ("argument to '-Xpreprocessor' is missing");
3734 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3736 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3739 fatal ("argument to '-Xassembler' is missing");
3741 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3743 else if (strcmp (argv
[i
], "-l") == 0)
3746 fatal ("argument to '-l' is missing");
3751 else if (strncmp (argv
[i
], "-l", 2) == 0)
3753 else if (strcmp (argv
[i
], "-save-temps") == 0)
3755 save_temps_flag
= 1;
3758 else if (strcmp (argv
[i
], "-combine") == 0)
3763 else if (strcmp (argv
[i
], "-specs") == 0)
3765 struct user_specs
*user
= XNEW (struct user_specs
);
3767 fatal ("argument to '-specs' is missing");
3769 user
->next
= (struct user_specs
*) 0;
3770 user
->filename
= argv
[i
];
3771 if (user_specs_tail
)
3772 user_specs_tail
->next
= user
;
3774 user_specs_head
= user
;
3775 user_specs_tail
= user
;
3777 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3779 struct user_specs
*user
= XNEW (struct user_specs
);
3780 if (strlen (argv
[i
]) == 7)
3781 fatal ("argument to '-specs=' is missing");
3783 user
->next
= (struct user_specs
*) 0;
3784 user
->filename
= argv
[i
] + 7;
3785 if (user_specs_tail
)
3786 user_specs_tail
->next
= user
;
3788 user_specs_head
= user
;
3789 user_specs_tail
= user
;
3791 else if (strcmp (argv
[i
], "-time") == 0)
3793 else if (strcmp (argv
[i
], "-pipe") == 0)
3795 /* -pipe has to go into the switches array as well as
3800 else if (strcmp (argv
[i
], "-###") == 0)
3802 /* This is similar to -v except that there is no execution
3803 of the commands and the echoed arguments are quoted. It
3804 is intended for use in shell scripts to capture the
3805 driver-generated command line. */
3806 verbose_only_flag
++;
3809 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3811 const char *p
= &argv
[i
][1];
3817 if (NULL
== strchr(argv
[i
] + 2, '-'))
3822 fatal ("'-%c' must come at the start of the command line", c
);
3830 if (p
[1] == 0 && i
+ 1 == argc
)
3831 fatal ("argument to '-B' is missing");
3837 len
= strlen (value
);
3839 /* Catch the case where the user has forgotten to append a
3840 directory separator to the path. Note, they may be using
3841 -B to add an executable name prefix, eg "i386-elf-", in
3842 order to distinguish between multiple installations of
3843 GCC in the same directory. Hence we must check to see
3844 if appending a directory separator actually makes a
3845 valid directory name. */
3846 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3847 && is_directory (value
, false))
3849 char *tmp
= XNEWVEC (char, len
+ 2);
3850 strcpy (tmp
, value
);
3851 tmp
[len
] = DIR_SEPARATOR
;
3856 add_prefix (&exec_prefixes
, value
, NULL
,
3857 PREFIX_PRIORITY_B_OPT
, 0, 0);
3858 add_prefix (&startfile_prefixes
, value
, NULL
,
3859 PREFIX_PRIORITY_B_OPT
, 0, 0);
3860 add_prefix (&include_prefixes
, value
, NULL
,
3861 PREFIX_PRIORITY_B_OPT
, 0, 0);
3866 case 'v': /* Print our subcommands and print versions. */
3868 /* If they do anything other than exactly `-v', don't set
3869 verbose_flag; rather, continue on to give the error. */
3887 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3892 /* Forward scan, just in case -S or -c is specified
3899 if (argv
[j
][0] == '-')
3901 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3907 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3908 j
+= skip
- (argv
[j
][2] != 0);
3909 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3916 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3918 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3920 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3927 #ifdef MODIFY_TARGET_NAME
3928 is_modify_target_name
= 0;
3930 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3931 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3933 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3934 + strlen (spec_machine
));
3937 int made_addition
= 0;
3939 is_modify_target_name
= 1;
3940 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3942 if (modify_target
[j
].add_del
== DELETE
3943 && (! strncmp (q
, modify_target
[j
].str
,
3944 strlen (modify_target
[j
].str
))))
3945 p
+= strlen (modify_target
[j
].str
);
3946 else if (modify_target
[j
].add_del
== ADD
3947 && ! made_addition
&& *p
== '-')
3949 for (r
= modify_target
[j
].str
; *r
!= 0; )
3957 spec_machine
= new_name
;
3960 if (is_modify_target_name
)
3966 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3967 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3968 else if (WORD_SWITCH_TAKES_ARG (p
))
3969 i
+= WORD_SWITCH_TAKES_ARG (p
);
3979 if (save_temps_flag
&& use_pipes
)
3981 /* -save-temps overrides -pipe, so that temp files are produced */
3982 if (save_temps_flag
)
3983 error ("warning: -pipe ignored because -save-temps specified");
3987 /* Set up the search paths. We add directories that we expect to
3988 contain GNU Toolchain components before directories specified by
3989 the machine description so that we will find GNU components (like
3990 the GNU assembler) before those of the host system. */
3992 /* If we don't know where the toolchain has been installed, use the
3993 configured-in locations. */
3994 if (!gcc_exec_prefix
)
3997 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3998 PREFIX_PRIORITY_LAST
, 1, 0);
3999 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4000 PREFIX_PRIORITY_LAST
, 2, 0);
4001 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4002 PREFIX_PRIORITY_LAST
, 2, 0);
4004 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4005 PREFIX_PRIORITY_LAST
, 1, 0);
4008 /* If not cross-compiling, search well-known system locations. */
4009 if (*cross_compile
== '0')
4012 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
4013 PREFIX_PRIORITY_LAST
, 2, 0);
4014 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4015 PREFIX_PRIORITY_LAST
, 2, 0);
4017 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4018 PREFIX_PRIORITY_LAST
, 1, 0);
4021 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4022 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4023 dir_separator_str
, NULL
);
4025 /* Look for tools relative to the location from which the driver is
4026 running, or, if that is not available, the configured prefix. */
4028 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4029 spec_machine
, dir_separator_str
,
4030 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4032 add_prefix (&exec_prefixes
,
4033 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4034 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4035 add_prefix (&startfile_prefixes
,
4036 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4037 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4039 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4040 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4041 then consider it to relocate with the rest of the GCC installation
4042 if GCC_EXEC_PREFIX is set.
4043 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4044 if (target_system_root
&& gcc_exec_prefix
)
4046 char *tmp_prefix
= make_relative_prefix (argv
[0],
4047 standard_bindir_prefix
,
4048 target_system_root
);
4049 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4051 target_system_root
= tmp_prefix
;
4052 target_system_root_changed
= 1;
4057 /* More prefixes are enabled in main, after we read the specs file
4058 and determine whether this is cross-compilation or not. */
4060 /* Then create the space for the vectors and scan again. */
4062 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4063 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4066 last_language_n_infiles
= -1;
4068 /* This, time, copy the text of each switch and store a pointer
4069 to the copy in the vector of switches.
4070 Store all the infiles in their vector. */
4072 for (i
= 1; i
< argc
; i
++)
4074 /* Just skip the switches that were handled by the preceding loop. */
4075 #ifdef MODIFY_TARGET_NAME
4076 is_modify_target_name
= 0;
4078 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4079 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4080 is_modify_target_name
= 1;
4082 if (is_modify_target_name
)
4086 if (! strncmp (argv
[i
], "-Wa,", 4))
4088 else if (! strncmp (argv
[i
], "-Wp,", 4))
4090 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4092 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4094 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4096 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4098 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4100 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4102 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4104 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4106 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4108 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4110 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4111 target_system_root_changed
= 1;
4113 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4115 /* Compensate for the +e options to the C++ front-end;
4116 they're there simply for cfront call-compatibility. We do
4117 some magic in default_compilers to pass them down properly.
4118 Note we deliberately start at the `+' here, to avoid passing
4119 -e0 or -e1 down into the linker. */
4120 switches
[n_switches
].part1
= &argv
[i
][0];
4121 switches
[n_switches
].args
= 0;
4122 switches
[n_switches
].live_cond
= SWITCH_OK
;
4123 switches
[n_switches
].validated
= 0;
4126 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4129 /* Split the argument at commas. */
4131 for (j
= 4; argv
[i
][j
]; j
++)
4132 if (argv
[i
][j
] == ',')
4134 infiles
[n_infiles
].language
= "*";
4135 infiles
[n_infiles
++].name
4136 = save_string (argv
[i
] + prev
, j
- prev
);
4139 /* Record the part after the last comma. */
4140 infiles
[n_infiles
].language
= "*";
4141 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4143 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4145 infiles
[n_infiles
].language
= "*";
4146 infiles
[n_infiles
++].name
= argv
[++i
];
4148 /* Xassembler and Xpreprocessor were already handled in the first argv
4149 scan, so all we need to do here is ignore them and their argument. */
4150 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4152 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4154 else if (strcmp (argv
[i
], "-l") == 0)
4155 { /* POSIX allows separation of -l and the lib arg;
4156 canonicalize by concatenating -l with its arg */
4157 infiles
[n_infiles
].language
= "*";
4158 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4160 else if (strncmp (argv
[i
], "-l", 2) == 0)
4162 infiles
[n_infiles
].language
= "*";
4163 infiles
[n_infiles
++].name
= argv
[i
];
4165 else if (strcmp (argv
[i
], "-specs") == 0)
4167 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4169 else if (strcmp (argv
[i
], "-time") == 0)
4171 else if (strcmp (argv
[i
], "-###") == 0)
4173 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4175 const char *p
= &argv
[i
][1];
4180 if (p
[1] == 0 && i
+ 1 == argc
)
4181 fatal ("argument to '-x' is missing");
4183 spec_lang
= argv
[++i
];
4186 if (! strcmp (spec_lang
, "none"))
4187 /* Suppress the warning if -xnone comes after the last input
4188 file, because alternate command interfaces like g++ might
4189 find it useful to place -xnone after each input file. */
4192 last_language_n_infiles
= n_infiles
;
4195 switches
[n_switches
].part1
= p
;
4196 /* Deal with option arguments in separate argv elements. */
4197 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4198 || WORD_SWITCH_TAKES_ARG (p
))
4201 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4205 /* Count only the option arguments in separate argv elements. */
4206 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4208 if (i
+ n_args
>= argc
)
4209 fatal ("argument to '-%s' is missing", p
);
4210 switches
[n_switches
].args
4211 = XNEWVEC (const char *, n_args
+ 1);
4213 switches
[n_switches
].args
[j
++] = argv
[++i
];
4214 /* Null-terminate the vector. */
4215 switches
[n_switches
].args
[j
] = 0;
4217 else if (strchr (switches_need_spaces
, c
))
4219 /* On some systems, ld cannot handle some options without
4220 a space. So split the option from its argument. */
4221 char *part1
= XNEWVEC (char, 2);
4225 switches
[n_switches
].part1
= part1
;
4226 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4227 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4228 switches
[n_switches
].args
[1] = 0;
4231 switches
[n_switches
].args
= 0;
4233 switches
[n_switches
].live_cond
= SWITCH_OK
;
4234 switches
[n_switches
].validated
= 0;
4235 switches
[n_switches
].ordering
= 0;
4236 /* These are always valid, since gcc.c itself understands the
4237 first four and gfortranspec.c understands -static-libgfortran. */
4238 if (!strcmp (p
, "save-temps")
4239 || !strcmp (p
, "static-libgcc")
4240 || !strcmp (p
, "shared-libgcc")
4241 || !strcmp (p
, "pipe")
4242 || !strcmp (p
, "static-libgfortran"))
4243 switches
[n_switches
].validated
= 1;
4246 char ch
= switches
[n_switches
].part1
[0];
4248 switches
[n_switches
].validated
= 1;
4254 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4255 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4258 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4260 perror_with_name (argv
[i
]);
4265 infiles
[n_infiles
].language
= spec_lang
;
4266 infiles
[n_infiles
++].name
= argv
[i
];
4271 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4272 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4274 /* Ensure we only invoke each subprocess once. */
4275 if (print_subprocess_help
|| print_help_list
)
4279 /* Create a dummy input file, so that we can pass
4280 the help option on to the various sub-processes. */
4281 infiles
[0].language
= "c";
4282 infiles
[0].name
= "help-dummy";
4285 switches
[n_switches
].part1
= 0;
4286 infiles
[n_infiles
].name
= 0;
4289 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4290 and place that in the environment. */
4293 set_collect_gcc_options (void)
4298 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4300 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4301 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4304 for (i
= 0; (int) i
< n_switches
; i
++)
4306 const char *const *args
;
4309 obstack_grow (&collect_obstack
, " ", 1);
4313 /* Ignore elided switches. */
4314 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4317 obstack_grow (&collect_obstack
, "'-", 2);
4318 q
= switches
[i
].part1
;
4319 while ((p
= strchr (q
, '\'')))
4321 obstack_grow (&collect_obstack
, q
, p
- q
);
4322 obstack_grow (&collect_obstack
, "'\\''", 4);
4325 obstack_grow (&collect_obstack
, q
, strlen (q
));
4326 obstack_grow (&collect_obstack
, "'", 1);
4328 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4330 obstack_grow (&collect_obstack
, " '", 2);
4332 while ((p
= strchr (q
, '\'')))
4334 obstack_grow (&collect_obstack
, q
, p
- q
);
4335 obstack_grow (&collect_obstack
, "'\\''", 4);
4338 obstack_grow (&collect_obstack
, q
, strlen (q
));
4339 obstack_grow (&collect_obstack
, "'", 1);
4342 obstack_grow (&collect_obstack
, "\0", 1);
4343 xputenv (XOBFINISH (&collect_obstack
, char *));
4346 /* Process a spec string, accumulating and running commands. */
4348 /* These variables describe the input file name.
4349 input_file_number is the index on outfiles of this file,
4350 so that the output file name can be stored for later use by %o.
4351 input_basename is the start of the part of the input file
4352 sans all directory names, and basename_length is the number
4353 of characters starting there excluding the suffix .c or whatever. */
4355 static const char *input_filename
;
4356 static int input_file_number
;
4357 size_t input_filename_length
;
4358 static int basename_length
;
4359 static int suffixed_basename_length
;
4360 static const char *input_basename
;
4361 static const char *input_suffix
;
4362 #ifndef HOST_LACKS_INODE_NUMBERS
4363 static struct stat input_stat
;
4365 static int input_stat_set
;
4367 /* The compiler used to process the current input file. */
4368 static struct compiler
*input_file_compiler
;
4370 /* These are variables used within do_spec and do_spec_1. */
4372 /* Nonzero if an arg has been started and not yet terminated
4373 (with space, tab or newline). */
4374 static int arg_going
;
4376 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4377 is a temporary file name. */
4378 static int delete_this_arg
;
4380 /* Nonzero means %w has been seen; the next arg to be terminated
4381 is the output file name of this compilation. */
4382 static int this_is_output_file
;
4384 /* Nonzero means %s has been seen; the next arg to be terminated
4385 is the name of a library file and we should try the standard
4386 search dirs for it. */
4387 static int this_is_library_file
;
4389 /* Nonzero means that the input of this command is coming from a pipe. */
4390 static int input_from_pipe
;
4392 /* Nonnull means substitute this for any suffix when outputting a switches
4394 static const char *suffix_subst
;
4396 /* If there is an argument being accumulated, terminate it and store it. */
4399 end_going_arg (void)
4405 obstack_1grow (&obstack
, 0);
4406 string
= XOBFINISH (&obstack
, const char *);
4407 if (this_is_library_file
)
4408 string
= find_file (string
);
4409 store_arg (string
, delete_this_arg
, this_is_output_file
);
4410 if (this_is_output_file
)
4411 outfiles
[input_file_number
] = string
;
4416 /* Process the spec SPEC and run the commands specified therein.
4417 Returns 0 if the spec is successfully processed; -1 if failed. */
4420 do_spec (const char *spec
)
4424 value
= do_spec_2 (spec
);
4426 /* Force out any unfinished command.
4427 If -pipe, this forces out the last command if it ended in `|'. */
4430 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4433 set_collect_gcc_options ();
4435 if (argbuf_index
> 0)
4443 do_spec_2 (const char *spec
)
4449 delete_this_arg
= 0;
4450 this_is_output_file
= 0;
4451 this_is_library_file
= 0;
4452 input_from_pipe
= 0;
4453 suffix_subst
= NULL
;
4455 result
= do_spec_1 (spec
, 0, NULL
);
4463 /* Process the given spec string and add any new options to the end
4464 of the switches/n_switches array. */
4467 do_option_spec (const char *name
, const char *spec
)
4469 unsigned int i
, value_count
, value_len
;
4470 const char *p
, *q
, *value
;
4471 char *tmp_spec
, *tmp_spec_p
;
4473 if (configure_default_options
[0].name
== NULL
)
4476 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4477 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4479 if (i
== ARRAY_SIZE (configure_default_options
))
4482 value
= configure_default_options
[i
].value
;
4483 value_len
= strlen (value
);
4485 /* Compute the size of the final spec. */
4488 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4494 /* Replace each %(VALUE) by the specified value. */
4495 tmp_spec
= alloca (strlen (spec
) + 1
4496 + value_count
* (value_len
- strlen ("%(VALUE)")));
4497 tmp_spec_p
= tmp_spec
;
4499 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4501 memcpy (tmp_spec_p
, q
, p
- q
);
4502 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4503 memcpy (tmp_spec_p
, value
, value_len
);
4504 tmp_spec_p
+= value_len
;
4505 q
= p
+ strlen ("%(VALUE)");
4507 strcpy (tmp_spec_p
, q
);
4509 do_self_spec (tmp_spec
);
4512 /* Process the given spec string and add any new options to the end
4513 of the switches/n_switches array. */
4516 do_self_spec (const char *spec
)
4519 do_spec_1 (" ", 0, NULL
);
4521 if (argbuf_index
> 0)
4526 n_switches
+= argbuf_index
;
4527 switches
= xrealloc (switches
,
4528 sizeof (struct switchstr
) * (n_switches
+ 1));
4530 switches
[n_switches
] = switches
[first
];
4531 for (i
= 0; i
< argbuf_index
; i
++)
4533 struct switchstr
*sw
;
4535 /* Each switch should start with '-'. */
4536 if (argbuf
[i
][0] != '-')
4537 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4539 sw
= &switches
[i
+ first
];
4540 sw
->part1
= &argbuf
[i
][1];
4542 sw
->live_cond
= SWITCH_OK
;
4549 /* Callback for processing %D and %I specs. */
4551 struct spec_path_info
{
4556 bool separate_options
;
4560 spec_path (char *path
, void *data
)
4562 struct spec_path_info
*info
= data
;
4566 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4569 if (info
->append_len
!= 0)
4571 len
= strlen (path
);
4572 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4575 if (!is_directory (path
, true))
4578 do_spec_1 (info
->option
, 1, NULL
);
4579 if (info
->separate_options
)
4580 do_spec_1 (" ", 0, NULL
);
4582 if (info
->append_len
== 0)
4584 len
= strlen (path
);
4585 save
= path
[len
- 1];
4586 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4587 path
[len
- 1] = '\0';
4590 do_spec_1 (path
, 1, NULL
);
4591 do_spec_1 (" ", 0, NULL
);
4593 /* Must not damage the original path. */
4594 if (info
->append_len
== 0)
4595 path
[len
- 1] = save
;
4600 /* Process the sub-spec SPEC as a portion of a larger spec.
4601 This is like processing a whole spec except that we do
4602 not initialize at the beginning and we do not supply a
4603 newline by default at the end.
4604 INSWITCH nonzero means don't process %-sequences in SPEC;
4605 in this case, % is treated as an ordinary character.
4606 This is used while substituting switches.
4607 INSWITCH nonzero also causes SPC not to terminate an argument.
4609 Value is zero unless a line was finished
4610 and the command on that line reported an error. */
4613 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4615 const char *p
= spec
;
4621 /* If substituting a switch, treat all chars like letters.
4622 Otherwise, NL, SPC, TAB and % are special. */
4623 switch (inswitch
? 'a' : c
)
4628 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4630 /* A `|' before the newline means use a pipe here,
4631 but only if -pipe was specified.
4632 Otherwise, execute now and don't pass the `|' as an arg. */
4635 input_from_pipe
= 1;
4642 set_collect_gcc_options ();
4644 if (argbuf_index
> 0)
4650 /* Reinitialize for a new command, and for a new argument. */
4653 delete_this_arg
= 0;
4654 this_is_output_file
= 0;
4655 this_is_library_file
= 0;
4656 input_from_pipe
= 0;
4663 obstack_1grow (&obstack
, c
);
4671 /* Reinitialize for a new argument. */
4672 delete_this_arg
= 0;
4673 this_is_output_file
= 0;
4674 this_is_library_file
= 0;
4681 fatal ("spec '%s' invalid", spec
);
4684 obstack_grow (&obstack
, input_basename
, basename_length
);
4689 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4694 delete_this_arg
= 2;
4697 /* Dump out the directories specified with LIBRARY_PATH,
4698 followed by the absolute directories
4699 that we search for startfiles. */
4702 struct spec_path_info info
;
4705 info
.append_len
= 0;
4706 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4707 /* Used on systems which record the specified -L dirs
4708 and use them to search for dynamic linking.
4709 Relative directories always come from -B,
4710 and it is better not to use them for searching
4711 at run time. In particular, stage1 loses. */
4712 info
.omit_relative
= true;
4714 info
.omit_relative
= false;
4716 info
.separate_options
= false;
4718 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4723 /* %efoo means report an error with `foo' as error message
4724 and don't execute any more commands for this file. */
4728 while (*p
!= 0 && *p
!= '\n')
4730 buf
= alloca (p
- q
+ 1);
4731 strncpy (buf
, q
, p
- q
);
4738 /* %nfoo means report a notice with `foo' on stderr. */
4742 while (*p
!= 0 && *p
!= '\n')
4744 buf
= alloca (p
- q
+ 1);
4745 strncpy (buf
, q
, p
- q
);
4747 notice ("%s\n", buf
);
4757 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4758 defined, and it is not a directory, and it is
4759 writable, use it. Otherwise, treat this like any
4760 other temporary file. */
4762 if ((!save_temps_flag
)
4763 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4764 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4766 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4767 strlen (HOST_BIT_BUCKET
));
4768 delete_this_arg
= 0;
4773 goto create_temp_file
;
4777 obstack_1grow (&obstack
, '-');
4778 delete_this_arg
= 0;
4781 /* consume suffix */
4782 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4784 if (p
[0] == '%' && p
[1] == 'O')
4789 goto create_temp_file
;
4793 /* consume suffix */
4794 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4796 if (p
[0] == '%' && p
[1] == 'O')
4801 goto create_temp_file
;
4807 struct temp_name
*t
;
4809 const char *suffix
= p
;
4810 char *saved_suffix
= NULL
;
4812 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4814 suffix_length
= p
- suffix
;
4815 if (p
[0] == '%' && p
[1] == 'O')
4818 /* We don't support extra suffix characters after %O. */
4819 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4820 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4821 if (suffix_length
== 0)
4822 suffix
= TARGET_OBJECT_SUFFIX
;
4826 = XNEWVEC (char, suffix_length
4827 + strlen (TARGET_OBJECT_SUFFIX
));
4828 strncpy (saved_suffix
, suffix
, suffix_length
);
4829 strcpy (saved_suffix
+ suffix_length
,
4830 TARGET_OBJECT_SUFFIX
);
4832 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4835 /* If the input_filename has the same suffix specified
4836 for the %g, %u, or %U, and -save-temps is specified,
4837 we could end up using that file as an intermediate
4838 thus clobbering the user's source file (.e.g.,
4839 gcc -save-temps foo.s would clobber foo.s with the
4840 output of cpp0). So check for this condition and
4841 generate a temp file as the intermediate. */
4843 if (save_temps_flag
)
4847 temp_filename_length
= basename_length
+ suffix_length
;
4848 tmp
= alloca (temp_filename_length
+ 1);
4849 strncpy (tmp
, input_basename
, basename_length
);
4850 strncpy (tmp
+ basename_length
, suffix
, suffix_length
);
4851 tmp
[temp_filename_length
] = '\0';
4852 temp_filename
= tmp
;
4853 if (strcmp (temp_filename
, input_filename
) != 0)
4855 #ifndef HOST_LACKS_INODE_NUMBERS
4856 struct stat st_temp
;
4858 /* Note, set_input() resets input_stat_set to 0. */
4859 if (input_stat_set
== 0)
4861 input_stat_set
= stat (input_filename
, &input_stat
);
4862 if (input_stat_set
>= 0)
4866 /* If we have the stat for the input_filename
4867 and we can do the stat for the temp_filename
4868 then the they could still refer to the same
4869 file if st_dev/st_ino's are the same. */
4870 if (input_stat_set
!= 1
4871 || stat (temp_filename
, &st_temp
) < 0
4872 || input_stat
.st_dev
!= st_temp
.st_dev
4873 || input_stat
.st_ino
!= st_temp
.st_ino
)
4875 /* Just compare canonical pathnames. */
4876 char* input_realname
= lrealpath (input_filename
);
4877 char* temp_realname
= lrealpath (temp_filename
);
4878 bool files_differ
= strcmp (input_realname
, temp_realname
);
4879 free (input_realname
);
4880 free (temp_realname
);
4884 temp_filename
= save_string (temp_filename
,
4885 temp_filename_length
+ 1);
4886 obstack_grow (&obstack
, temp_filename
,
4887 temp_filename_length
);
4889 delete_this_arg
= 0;
4895 /* See if we already have an association of %g/%u/%U and
4897 for (t
= temp_names
; t
; t
= t
->next
)
4898 if (t
->length
== suffix_length
4899 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4900 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4903 /* Make a new association if needed. %u and %j
4905 if (t
== 0 || c
== 'u' || c
== 'j')
4909 t
= xmalloc (sizeof (struct temp_name
));
4910 t
->next
= temp_names
;
4913 t
->length
= suffix_length
;
4916 t
->suffix
= saved_suffix
;
4917 saved_suffix
= NULL
;
4920 t
->suffix
= save_string (suffix
, suffix_length
);
4921 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4922 temp_filename
= make_temp_file (t
->suffix
);
4923 temp_filename_length
= strlen (temp_filename
);
4924 t
->filename
= temp_filename
;
4925 t
->filename_length
= temp_filename_length
;
4929 free (saved_suffix
);
4931 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4932 delete_this_arg
= 1;
4940 for (i
= 0; (int) i
< n_infiles
; i
++)
4941 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4942 if (infiles
[i
].incompiler
== input_file_compiler
)
4944 store_arg (infiles
[i
].name
, 0, 0);
4945 infiles
[i
].compiled
= true;
4950 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4957 struct spec_path_info info
;
4961 do_spec_1 ("-imultilib", 1, NULL
);
4962 /* Make this a separate argument. */
4963 do_spec_1 (" ", 0, NULL
);
4964 do_spec_1 (multilib_dir
, 1, NULL
);
4965 do_spec_1 (" ", 0, NULL
);
4968 if (gcc_exec_prefix
)
4970 do_spec_1 ("-iprefix", 1, NULL
);
4971 /* Make this a separate argument. */
4972 do_spec_1 (" ", 0, NULL
);
4973 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4974 do_spec_1 (" ", 0, NULL
);
4977 if (target_system_root_changed
||
4978 (target_system_root
&& target_sysroot_hdrs_suffix
))
4980 do_spec_1 ("-isysroot", 1, NULL
);
4981 /* Make this a separate argument. */
4982 do_spec_1 (" ", 0, NULL
);
4983 do_spec_1 (target_system_root
, 1, NULL
);
4984 if (target_sysroot_hdrs_suffix
)
4985 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4986 do_spec_1 (" ", 0, NULL
);
4989 info
.option
= "-isystem";
4990 info
.append
= "include";
4991 info
.append_len
= strlen (info
.append
);
4992 info
.omit_relative
= false;
4993 info
.separate_options
= true;
4995 for_each_path (&include_prefixes
, false, info
.append_len
,
4998 info
.append
= "include-fixed";
4999 if (*sysroot_hdrs_suffix_spec
)
5000 info
.append
= concat (info
.append
, dir_separator_str
,
5001 multilib_dir
, NULL
);
5002 info
.append_len
= strlen (info
.append
);
5003 for_each_path (&include_prefixes
, false, info
.append_len
,
5010 int max
= n_infiles
;
5011 max
+= lang_specific_extra_outfiles
;
5013 if (HAVE_GNU_LD
&& at_file_supplied
)
5015 /* We are going to expand `%o' to `@FILE', where FILE
5016 is a newly-created temporary filename. The filenames
5017 that would usually be expanded in place of %o will be
5018 written to the temporary file. */
5020 char *temp_file
= make_temp_file ("");
5023 int n_files
, j
, status
;
5026 at_argument
= concat ("@", temp_file
, NULL
);
5027 store_arg (at_argument
, 0, 0);
5029 /* Convert OUTFILES into a form suitable for writeargv. */
5031 /* Determine how many are non-NULL. */
5032 for (n_files
= 0, i
= 0; i
< max
; i
++)
5033 n_files
+= outfiles
[i
] != NULL
;
5035 argv
= alloca (sizeof (char *) * (n_files
+ 1));
5037 /* Copy the strings over. */
5038 for (i
= 0, j
= 0; i
< max
; i
++)
5041 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5046 f
= fopen (temp_file
, "w");
5049 fatal ("could not open temporary response file %s",
5052 status
= writeargv (argv
, f
);
5055 fatal ("could not write to temporary response file %s",
5058 status
= fclose (f
);
5061 fatal ("could not close temporary response file %s",
5064 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5067 for (i
= 0; i
< max
; i
++)
5069 store_arg (outfiles
[i
], 0, 0);
5074 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5079 this_is_library_file
= 1;
5083 outfiles
[input_file_number
] = NULL
;
5087 this_is_output_file
= 1;
5092 int cur_index
= argbuf_index
;
5093 /* Handle the {...} following the %W. */
5095 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5096 p
= handle_braces (p
+ 1);
5100 /* If any args were output, mark the last one for deletion
5102 if (argbuf_index
!= cur_index
)
5103 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5107 /* %x{OPTION} records OPTION for %X to output. */
5113 /* Skip past the option value and make a copy. */
5115 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5118 string
= save_string (p1
+ 1, p
- p1
- 2);
5120 /* See if we already recorded this option. */
5121 for (i
= 0; i
< n_linker_options
; i
++)
5122 if (! strcmp (string
, linker_options
[i
]))
5128 /* This option is new; add it. */
5129 add_linker_option (string
, strlen (string
));
5133 /* Dump out the options accumulated previously using %x. */
5135 for (i
= 0; i
< n_linker_options
; i
++)
5137 do_spec_1 (linker_options
[i
], 1, NULL
);
5138 /* Make each accumulated option a separate argument. */
5139 do_spec_1 (" ", 0, NULL
);
5143 /* Dump out the options accumulated previously using -Wa,. */
5145 for (i
= 0; i
< n_assembler_options
; i
++)
5147 do_spec_1 (assembler_options
[i
], 1, NULL
);
5148 /* Make each accumulated option a separate argument. */
5149 do_spec_1 (" ", 0, NULL
);
5153 /* Dump out the options accumulated previously using -Wp,. */
5155 for (i
= 0; i
< n_preprocessor_options
; i
++)
5157 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5158 /* Make each accumulated option a separate argument. */
5159 do_spec_1 (" ", 0, NULL
);
5163 /* Here are digits and numbers that just process
5164 a certain constant string as a spec. */
5167 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5173 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5179 value
= do_spec_1 (asm_spec
, 0, NULL
);
5185 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5192 const char *const spec
5193 = (input_file_compiler
->cpp_spec
5194 ? input_file_compiler
->cpp_spec
5196 value
= do_spec_1 (spec
, 0, NULL
);
5203 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5209 value
= do_spec_1 (link_spec
, 0, NULL
);
5215 value
= do_spec_1 (lib_spec
, 0, NULL
);
5221 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5227 /* We assume there is a directory
5228 separator at the end of this string. */
5229 if (target_system_root
)
5231 obstack_grow (&obstack
, target_system_root
,
5232 strlen (target_system_root
));
5233 if (target_sysroot_suffix
)
5234 obstack_grow (&obstack
, target_sysroot_suffix
,
5235 strlen (target_sysroot_suffix
));
5240 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5245 /* Here we define characters other than letters and digits. */
5248 p
= handle_braces (p
);
5254 p
= handle_spec_function (p
);
5260 obstack_1grow (&obstack
, '%');
5267 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5269 suffix_subst
= save_string (p
- 1, len
+ 1);
5274 /* Henceforth ignore the option(s) matching the pattern
5279 int have_wildcard
= 0;
5282 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5285 if (p
[len
-1] == '*')
5288 for (i
= 0; i
< n_switches
; i
++)
5289 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5290 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5292 switches
[i
].live_cond
= SWITCH_IGNORE
;
5293 switches
[i
].validated
= 1;
5301 if (soft_matched_part
)
5303 do_spec_1 (soft_matched_part
, 1, NULL
);
5304 do_spec_1 (" ", 0, NULL
);
5307 /* Catch the case where a spec string contains something like
5308 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5309 hand side of the :. */
5310 error ("spec failure: '%%*' has not been initialized by pattern match");
5313 /* Process a string found as the value of a spec given by name.
5314 This feature allows individual machine descriptions
5315 to add and use their own specs.
5316 %[...] modifies -D options the way %P does;
5317 %(...) uses the spec unmodified. */
5319 error ("warning: use of obsolete %%[ operator in specs");
5322 const char *name
= p
;
5323 struct spec_list
*sl
;
5326 /* The string after the S/P is the name of a spec that is to be
5328 while (*p
&& *p
!= ')' && *p
!= ']')
5331 /* See if it's in the list. */
5332 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5333 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5335 name
= *(sl
->ptr_spec
);
5337 notice ("Processing spec %c%s%c, which is '%s'\n",
5338 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5347 value
= do_spec_1 (name
, 0, NULL
);
5353 char *x
= alloca (strlen (name
) * 2 + 1);
5355 const char *y
= name
;
5358 /* Copy all of NAME into BUF, but put __ after
5359 every -D and at the end of each arg. */
5362 if (! strncmp (y
, "-D", 2))
5373 && (*y
== ' ' || *y
== '\t' || *y
== '='
5374 || *y
== '}' || *y
== 0))
5387 value
= do_spec_1 (buf
, 0, NULL
);
5393 /* Discard the closing paren or bracket. */
5400 error ("spec failure: unrecognized spec option '%c'", c
);
5406 /* Backslash: treat next character as ordinary. */
5411 /* Ordinary character: put it into the current argument. */
5412 obstack_1grow (&obstack
, c
);
5416 /* End of string. If we are processing a spec function, we need to
5417 end any pending argument. */
5418 if (processing_spec_function
)
5424 /* Look up a spec function. */
5426 static const struct spec_function
*
5427 lookup_spec_function (const char *name
)
5429 const struct spec_function
*sf
;
5431 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5432 if (strcmp (sf
->name
, name
) == 0)
5438 /* Evaluate a spec function. */
5441 eval_spec_function (const char *func
, const char *args
)
5443 const struct spec_function
*sf
;
5444 const char *funcval
;
5446 /* Saved spec processing context. */
5447 int save_argbuf_index
;
5448 int save_argbuf_length
;
5449 const char **save_argbuf
;
5452 int save_delete_this_arg
;
5453 int save_this_is_output_file
;
5454 int save_this_is_library_file
;
5455 int save_input_from_pipe
;
5456 const char *save_suffix_subst
;
5459 sf
= lookup_spec_function (func
);
5461 fatal ("unknown spec function '%s'", func
);
5463 /* Push the spec processing context. */
5464 save_argbuf_index
= argbuf_index
;
5465 save_argbuf_length
= argbuf_length
;
5466 save_argbuf
= argbuf
;
5468 save_arg_going
= arg_going
;
5469 save_delete_this_arg
= delete_this_arg
;
5470 save_this_is_output_file
= this_is_output_file
;
5471 save_this_is_library_file
= this_is_library_file
;
5472 save_input_from_pipe
= input_from_pipe
;
5473 save_suffix_subst
= suffix_subst
;
5475 /* Create a new spec processing context, and build the function
5479 if (do_spec_2 (args
) < 0)
5480 fatal ("error in args to spec function '%s'", func
);
5482 /* argbuf_index is an index for the next argument to be inserted, and
5483 so contains the count of the args already inserted. */
5485 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5487 /* Pop the spec processing context. */
5488 argbuf_index
= save_argbuf_index
;
5489 argbuf_length
= save_argbuf_length
;
5491 argbuf
= save_argbuf
;
5493 arg_going
= save_arg_going
;
5494 delete_this_arg
= save_delete_this_arg
;
5495 this_is_output_file
= save_this_is_output_file
;
5496 this_is_library_file
= save_this_is_library_file
;
5497 input_from_pipe
= save_input_from_pipe
;
5498 suffix_subst
= save_suffix_subst
;
5503 /* Handle a spec function call of the form:
5507 ARGS is processed as a spec in a separate context and split into an
5508 argument vector in the normal fashion. The function returns a string
5509 containing a spec which we then process in the caller's context, or
5510 NULL if no processing is required. */
5513 handle_spec_function (const char *p
)
5516 const char *endp
, *funcval
;
5519 processing_spec_function
++;
5521 /* Get the function name. */
5522 for (endp
= p
; *endp
!= '\0'; endp
++)
5524 if (*endp
== '(') /* ) */
5526 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5527 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5528 fatal ("malformed spec function name");
5530 if (*endp
!= '(') /* ) */
5531 fatal ("no arguments for spec function");
5532 func
= save_string (p
, endp
- p
);
5535 /* Get the arguments. */
5536 for (count
= 0; *endp
!= '\0'; endp
++)
5545 else if (*endp
== '(') /* ) */
5550 fatal ("malformed spec function arguments");
5551 args
= save_string (p
, endp
- p
);
5554 /* p now points to just past the end of the spec function expression. */
5556 funcval
= eval_spec_function (func
, args
);
5557 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5563 processing_spec_function
--;
5568 /* Inline subroutine of handle_braces. Returns true if the current
5569 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5571 input_suffix_matches (const char *atom
, const char *end_atom
)
5573 return (input_suffix
5574 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5575 && input_suffix
[end_atom
- atom
] == '\0');
5578 /* Subroutine of handle_braces. Returns true if the current
5579 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5581 input_spec_matches (const char *atom
, const char *end_atom
)
5583 return (input_file_compiler
5584 && input_file_compiler
->suffix
5585 && input_file_compiler
->suffix
[0] != '\0'
5586 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5588 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5591 /* Subroutine of handle_braces. Returns true if a switch
5592 matching the atom bracketed by ATOM and END_ATOM appeared on the
5595 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5598 int len
= end_atom
- atom
;
5599 int plen
= starred
? len
: -1;
5601 for (i
= 0; i
< n_switches
; i
++)
5602 if (!strncmp (switches
[i
].part1
, atom
, len
)
5603 && (starred
|| switches
[i
].part1
[len
] == '\0')
5604 && check_live_switch (i
, plen
))
5610 /* Inline subroutine of handle_braces. Mark all of the switches which
5611 match ATOM (extends to END_ATOM; STARRED indicates whether there
5612 was a star after the atom) for later processing. */
5614 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5617 int len
= end_atom
- atom
;
5618 int plen
= starred
? len
: -1;
5620 for (i
= 0; i
< n_switches
; i
++)
5621 if (!strncmp (switches
[i
].part1
, atom
, len
)
5622 && (starred
|| switches
[i
].part1
[len
] == '\0')
5623 && check_live_switch (i
, plen
))
5624 switches
[i
].ordering
= 1;
5627 /* Inline subroutine of handle_braces. Process all the currently
5628 marked switches through give_switch, and clear the marks. */
5630 process_marked_switches (void)
5634 for (i
= 0; i
< n_switches
; i
++)
5635 if (switches
[i
].ordering
== 1)
5637 switches
[i
].ordering
= 0;
5642 /* Handle a %{ ... } construct. P points just inside the leading {.
5643 Returns a pointer one past the end of the brace block, or 0
5644 if we call do_spec_1 and that returns -1. */
5647 handle_braces (const char *p
)
5649 const char *atom
, *end_atom
;
5650 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5651 const char *orig
= p
;
5659 bool a_must_be_last
= false;
5660 bool ordered_set
= false;
5661 bool disjunct_set
= false;
5662 bool disj_matched
= false;
5663 bool disj_starred
= true;
5664 bool n_way_choice
= false;
5665 bool n_way_matched
= false;
5667 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5674 /* Scan one "atom" (S in the description above of %{}, possibly
5675 with '!', '.', '@', ',', or '*' modifiers). */
5677 a_is_suffix
= false;
5678 a_is_starred
= false;
5679 a_is_negated
= false;
5680 a_is_spectype
= false;
5684 p
++, a_is_negated
= true;
5688 p
++, a_is_suffix
= true;
5690 p
++, a_is_spectype
= true;
5693 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5694 || *p
== ',' || *p
== '.' || *p
== '@')
5699 p
++, a_is_starred
= 1;
5705 /* Substitute the switch(es) indicated by the current atom. */
5707 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5708 || a_is_spectype
|| atom
== end_atom
)
5711 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5714 process_marked_switches ();
5718 /* Substitute some text if the current atom appears as a switch
5720 disjunct_set
= true;
5724 if (atom
== end_atom
)
5726 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5727 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5731 /* An empty term may appear as the last choice of an
5732 N-way choice set; it means "otherwise". */
5733 a_must_be_last
= true;
5734 disj_matched
= !n_way_matched
;
5735 disj_starred
= false;
5739 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5743 disj_starred
= false;
5745 /* Don't bother testing this atom if we already have a
5747 if (!disj_matched
&& !n_way_matched
)
5750 a_matched
= input_suffix_matches (atom
, end_atom
);
5751 else if (a_is_spectype
)
5752 a_matched
= input_spec_matches (atom
, end_atom
);
5754 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5756 if (a_matched
!= a_is_negated
)
5758 disj_matched
= true;
5760 d_end_atom
= end_atom
;
5767 /* Found the body, that is, the text to substitute if the
5768 current disjunction matches. */
5769 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5770 disj_matched
&& !n_way_matched
);
5774 /* If we have an N-way choice, reset state for the next
5778 n_way_choice
= true;
5779 n_way_matched
|= disj_matched
;
5780 disj_matched
= false;
5781 disj_starred
= true;
5782 d_atom
= d_end_atom
= NULL
;
5791 while (*p
++ != '}');
5796 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5801 /* Subroutine of handle_braces. Scan and process a brace substitution body
5802 (X in the description of %{} syntax). P points one past the colon;
5803 ATOM and END_ATOM bracket the first atom which was found to be true
5804 (present) in the current disjunction; STARRED indicates whether all
5805 the atoms in the current disjunction were starred (for syntax validation);
5806 MATCHED indicates whether the disjunction matched or not, and therefore
5807 whether or not the body is to be processed through do_spec_1 or just
5808 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5812 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5813 int starred
, int matched
)
5815 const char *body
, *end_body
;
5816 unsigned int nesting_level
;
5817 bool have_subst
= false;
5819 /* Locate the closing } or ;, honoring nested braces.
5820 Trim trailing whitespace. */
5829 if (!--nesting_level
)
5832 else if (*p
== ';' && nesting_level
== 1)
5834 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5836 else if (*p
== '\0')
5842 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5845 if (have_subst
&& !starred
)
5850 /* Copy the substitution body to permanent storage and execute it.
5851 If have_subst is false, this is a simple matter of running the
5852 body through do_spec_1... */
5853 char *string
= save_string (body
, end_body
- body
);
5856 if (do_spec_1 (string
, 0, NULL
) < 0)
5861 /* ... but if have_subst is true, we have to process the
5862 body once for each matching switch, with %* set to the
5863 variant part of the switch. */
5864 unsigned int hard_match_len
= end_atom
- atom
;
5867 for (i
= 0; i
< n_switches
; i
++)
5868 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5869 && check_live_switch (i
, hard_match_len
))
5871 if (do_spec_1 (string
, 0,
5872 &switches
[i
].part1
[hard_match_len
]) < 0)
5874 /* Pass any arguments this switch has. */
5876 suffix_subst
= NULL
;
5884 fatal ("braced spec body '%s' is invalid", body
);
5887 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5888 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5889 spec, or -1 if either exact match or %* is used.
5891 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5892 whose value does not begin with "no-" is obsoleted by the same value
5893 with the "no-", similarly for a switch with the "no-" prefix. */
5896 check_live_switch (int switchnum
, int prefix_length
)
5898 const char *name
= switches
[switchnum
].part1
;
5901 /* In the common case of {<at-most-one-letter>*}, a negating
5902 switch would always match, so ignore that case. We will just
5903 send the conflicting switches to the compiler phase. */
5904 if (prefix_length
>= 0 && prefix_length
<= 1)
5907 /* If we already processed this switch and determined if it was
5908 live or not, return our past determination. */
5909 if (switches
[switchnum
].live_cond
!= 0)
5910 return switches
[switchnum
].live_cond
> 0;
5912 /* Now search for duplicate in a manner that depends on the name. */
5916 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5917 if (switches
[i
].part1
[0] == 'O')
5919 switches
[switchnum
].validated
= 1;
5920 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5925 case 'W': case 'f': case 'm':
5926 if (! strncmp (name
+ 1, "no-", 3))
5928 /* We have Xno-YYY, search for XYYY. */
5929 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5930 if (switches
[i
].part1
[0] == name
[0]
5931 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5933 switches
[switchnum
].validated
= 1;
5934 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5940 /* We have XYYY, search for Xno-YYY. */
5941 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5942 if (switches
[i
].part1
[0] == name
[0]
5943 && switches
[i
].part1
[1] == 'n'
5944 && switches
[i
].part1
[2] == 'o'
5945 && switches
[i
].part1
[3] == '-'
5946 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5948 switches
[switchnum
].validated
= 1;
5949 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5956 /* Otherwise the switch is live. */
5957 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5961 /* Pass a switch to the current accumulating command
5962 in the same form that we received it.
5963 SWITCHNUM identifies the switch; it is an index into
5964 the vector of switches gcc received, which is `switches'.
5965 This cannot fail since it never finishes a command line.
5967 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5970 give_switch (int switchnum
, int omit_first_word
)
5972 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5975 if (!omit_first_word
)
5977 do_spec_1 ("-", 0, NULL
);
5978 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5981 if (switches
[switchnum
].args
!= 0)
5984 for (p
= switches
[switchnum
].args
; *p
; p
++)
5986 const char *arg
= *p
;
5988 do_spec_1 (" ", 0, NULL
);
5991 unsigned length
= strlen (arg
);
5994 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5995 if (arg
[length
] == '.')
5997 (CONST_CAST(char *, arg
))[length
] = 0;
6001 do_spec_1 (arg
, 1, NULL
);
6003 (CONST_CAST(char *, arg
))[length
] = '.';
6004 do_spec_1 (suffix_subst
, 1, NULL
);
6007 do_spec_1 (arg
, 1, NULL
);
6011 do_spec_1 (" ", 0, NULL
);
6012 switches
[switchnum
].validated
= 1;
6015 /* Search for a file named NAME trying various prefixes including the
6016 user's -B prefix and some standard ones.
6017 Return the absolute file name found. If nothing is found, return NAME. */
6020 find_file (const char *name
)
6022 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6023 return newname
? newname
: name
;
6026 /* Determine whether a directory exists. If LINKER, return 0 for
6027 certain fixed names not needed by the linker. */
6030 is_directory (const char *path1
, bool linker
)
6037 /* Ensure the string ends with "/.". The resulting path will be a
6038 directory even if the given path is a symbolic link. */
6039 len1
= strlen (path1
);
6040 path
= alloca (3 + len1
);
6041 memcpy (path
, path1
, len1
);
6043 if (!IS_DIR_SEPARATOR (cp
[-1]))
6044 *cp
++ = DIR_SEPARATOR
;
6048 /* Exclude directories that the linker is known to search. */
6050 && IS_DIR_SEPARATOR (path
[0])
6052 && strncmp (path
+ 1, "lib", 3) == 0)
6054 && strncmp (path
+ 1, "usr", 3) == 0
6055 && IS_DIR_SEPARATOR (path
[4])
6056 && strncmp (path
+ 5, "lib", 3) == 0)))
6059 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6062 /* Set up the various global variables to indicate that we're processing
6063 the input file named FILENAME. */
6066 set_input (const char *filename
)
6070 input_filename
= filename
;
6071 input_filename_length
= strlen (input_filename
);
6073 input_basename
= input_filename
;
6074 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6075 /* Skip drive name so 'x:foo' is handled properly. */
6076 if (input_basename
[1] == ':')
6077 input_basename
+= 2;
6079 for (p
= input_basename
; *p
; p
++)
6080 if (IS_DIR_SEPARATOR (*p
))
6081 input_basename
= p
+ 1;
6083 /* Find a suffix starting with the last period,
6084 and set basename_length to exclude that suffix. */
6085 basename_length
= strlen (input_basename
);
6086 suffixed_basename_length
= basename_length
;
6087 p
= input_basename
+ basename_length
;
6088 while (p
!= input_basename
&& *p
!= '.')
6090 if (*p
== '.' && p
!= input_basename
)
6092 basename_length
= p
- input_basename
;
6093 input_suffix
= p
+ 1;
6098 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6099 we will need to do a stat on the input_filename. The
6100 INPUT_STAT_SET signals that the stat is needed. */
6104 /* On fatal signals, delete all the temporary files. */
6107 fatal_error (int signum
)
6109 signal (signum
, SIG_DFL
);
6110 delete_failure_queue ();
6111 delete_temp_files ();
6112 /* Get the same signal again, this time not handled,
6113 so its normal effect occurs. */
6114 kill (getpid (), signum
);
6117 extern int main (int, char **);
6120 main (int argc
, char **argv
)
6124 int linker_was_run
= 0;
6125 int lang_n_infiles
= 0;
6126 int num_linker_inputs
= 0;
6127 char *explicit_link_files
;
6130 struct user_specs
*uptr
;
6131 char **old_argv
= argv
;
6133 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6134 on ?: in file-scope variable initializations. */
6135 asm_debug
= ASM_DEBUG_SPEC
;
6137 p
= argv
[0] + strlen (argv
[0]);
6138 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6142 xmalloc_set_program_name (programname
);
6144 expandargv (&argc
, &argv
);
6146 /* Determine if any expansions were made. */
6147 if (argv
!= old_argv
)
6148 at_file_supplied
= true;
6150 prune_options (&argc
, &argv
);
6152 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6153 /* Perform host dependent initialization when needed. */
6154 GCC_DRIVER_HOST_INITIALIZATION
;
6157 /* Unlock the stdio streams. */
6158 unlock_std_streams ();
6160 gcc_init_libintl ();
6162 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6163 signal (SIGINT
, fatal_error
);
6165 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6166 signal (SIGHUP
, fatal_error
);
6168 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6169 signal (SIGTERM
, fatal_error
);
6171 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6172 signal (SIGPIPE
, fatal_error
);
6175 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6176 receive the signal. A different setting is inheritable */
6177 signal (SIGCHLD
, SIG_DFL
);
6180 /* Allocate the argument vector. */
6183 obstack_init (&obstack
);
6185 /* Build multilib_select, et. al from the separate lines that make up each
6186 multilib selection. */
6188 const char *const *q
= multilib_raw
;
6191 obstack_init (&multilib_obstack
);
6192 while ((p
= *q
++) != (char *) 0)
6193 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6195 obstack_1grow (&multilib_obstack
, 0);
6196 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6198 q
= multilib_matches_raw
;
6199 while ((p
= *q
++) != (char *) 0)
6200 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6202 obstack_1grow (&multilib_obstack
, 0);
6203 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6205 q
= multilib_exclusions_raw
;
6206 while ((p
= *q
++) != (char *) 0)
6207 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6209 obstack_1grow (&multilib_obstack
, 0);
6210 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6213 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6216 obstack_1grow (&multilib_obstack
, ' ');
6217 obstack_grow (&multilib_obstack
,
6218 multilib_defaults_raw
[i
],
6219 strlen (multilib_defaults_raw
[i
]));
6223 obstack_1grow (&multilib_obstack
, 0);
6224 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6227 /* Set up to remember the pathname of gcc and any options
6228 needed for collect. We use argv[0] instead of programname because
6229 we need the complete pathname. */
6230 obstack_init (&collect_obstack
);
6231 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6232 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6233 xputenv (XOBFINISH (&collect_obstack
, char *));
6235 #ifdef INIT_ENVIRONMENT
6236 /* Set up any other necessary machine specific environment variables. */
6237 xputenv (INIT_ENVIRONMENT
);
6240 /* Make a table of what switches there are (switches, n_switches).
6241 Make a table of specified input files (infiles, n_infiles).
6242 Decode switches that are handled locally. */
6244 process_command (argc
, (const char **) argv
);
6246 /* Initialize the vector of specs to just the default.
6247 This means one element containing 0s, as a terminator. */
6249 compilers
= xmalloc (sizeof default_compilers
);
6250 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6251 n_compilers
= n_default_compilers
;
6253 /* Read specs from a file if there is one. */
6255 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6256 spec_version
, dir_separator_str
, NULL
);
6257 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6259 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6260 /* Read the specs file unless it is a default one. */
6261 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6262 read_specs (specs_file
, TRUE
);
6266 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6267 for any override of as, ld and libraries. */
6268 specs_file
= alloca (strlen (standard_exec_prefix
)
6269 + strlen (just_machine_suffix
) + sizeof ("specs"));
6271 strcpy (specs_file
, standard_exec_prefix
);
6272 strcat (specs_file
, just_machine_suffix
);
6273 strcat (specs_file
, "specs");
6274 if (access (specs_file
, R_OK
) == 0)
6275 read_specs (specs_file
, TRUE
);
6277 /* Process any configure-time defaults specified for the command line
6278 options, via OPTION_DEFAULT_SPECS. */
6279 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6280 do_option_spec (option_default_specs
[i
].name
,
6281 option_default_specs
[i
].spec
);
6283 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6284 of the command line. */
6286 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6287 do_self_spec (driver_self_specs
[i
]);
6289 /* If not cross-compiling, look for executables in the standard
6291 if (*cross_compile
== '0')
6293 if (*md_exec_prefix
)
6295 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6296 PREFIX_PRIORITY_LAST
, 0, 0);
6300 /* Process sysroot_suffix_spec. */
6301 if (*sysroot_suffix_spec
!= 0
6302 && do_spec_2 (sysroot_suffix_spec
) == 0)
6304 if (argbuf_index
> 1)
6305 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6306 else if (argbuf_index
== 1)
6307 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6310 #ifdef HAVE_LD_SYSROOT
6311 /* Pass the --sysroot option to the linker, if it supports that. If
6312 there is a sysroot_suffix_spec, it has already been processed by
6313 this point, so target_system_root really is the system root we
6315 if (target_system_root
)
6317 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6318 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6319 set_spec ("link", XOBFINISH (&obstack
, const char *));
6323 /* Process sysroot_hdrs_suffix_spec. */
6324 if (*sysroot_hdrs_suffix_spec
!= 0
6325 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6327 if (argbuf_index
> 1)
6328 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6329 else if (argbuf_index
== 1)
6330 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6333 /* Look for startfiles in the standard places. */
6334 if (*startfile_prefix_spec
!= 0
6335 && do_spec_2 (startfile_prefix_spec
) == 0
6336 && do_spec_1 (" ", 0, NULL
) == 0)
6339 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6340 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6341 PREFIX_PRIORITY_LAST
, 0, 1);
6343 /* We should eventually get rid of all these and stick to
6344 startfile_prefix_spec exclusively. */
6345 else if (*cross_compile
== '0' || target_system_root
)
6347 if (*md_startfile_prefix
)
6348 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6349 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6351 if (*md_startfile_prefix_1
)
6352 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6353 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6355 /* If standard_startfile_prefix is relative, base it on
6356 standard_exec_prefix. This lets us move the installed tree
6357 as a unit. If GCC_EXEC_PREFIX is defined, base
6358 standard_startfile_prefix on that as well.
6360 If the prefix is relative, only search it for native compilers;
6361 otherwise we will search a directory containing host libraries. */
6362 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6363 add_sysrooted_prefix (&startfile_prefixes
,
6364 standard_startfile_prefix
, "BINUTILS",
6365 PREFIX_PRIORITY_LAST
, 0, 1);
6366 else if (*cross_compile
== '0')
6368 add_prefix (&startfile_prefixes
,
6369 concat (gcc_exec_prefix
6370 ? gcc_exec_prefix
: standard_exec_prefix
,
6372 standard_startfile_prefix
, NULL
),
6373 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6376 /* Sysrooted prefixes are relocated because target_system_root is
6377 also relocated by gcc_exec_prefix. */
6378 if (*standard_startfile_prefix_1
)
6379 add_sysrooted_prefix (&startfile_prefixes
,
6380 standard_startfile_prefix_1
, "BINUTILS",
6381 PREFIX_PRIORITY_LAST
, 0, 1);
6382 if (*standard_startfile_prefix_2
)
6383 add_sysrooted_prefix (&startfile_prefixes
,
6384 standard_startfile_prefix_2
, "BINUTILS",
6385 PREFIX_PRIORITY_LAST
, 0, 1);
6388 /* Process any user specified specs in the order given on the command
6390 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6392 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6394 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6397 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6398 if (gcc_exec_prefix
)
6399 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6400 spec_version
, dir_separator_str
, NULL
);
6402 /* Now we have the specs.
6403 Set the `valid' bits for switches that match anything in any spec. */
6405 validate_all_switches ();
6407 /* Now that we have the switches and the specs, set
6408 the subdirectory based on the options. */
6409 set_multilib_dir ();
6411 /* Warn about any switches that no pass was interested in. */
6413 for (i
= 0; (int) i
< n_switches
; i
++)
6414 if (! switches
[i
].validated
)
6415 error ("unrecognized option '-%s'", switches
[i
].part1
);
6417 /* Obey some of the options. */
6419 if (print_search_dirs
)
6421 printf (_("install: %s%s\n"),
6422 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6423 gcc_exec_prefix
? "" : machine_suffix
);
6424 printf (_("programs: %s\n"),
6425 build_search_list (&exec_prefixes
, "", false, false));
6426 printf (_("libraries: %s\n"),
6427 build_search_list (&startfile_prefixes
, "", false, true));
6431 if (print_file_name
)
6433 printf ("%s\n", find_file (print_file_name
));
6437 if (print_prog_name
)
6439 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6440 printf ("%s\n", (newname
? newname
: print_prog_name
));
6444 if (print_multi_lib
)
6446 print_multilib_info ();
6450 if (print_multi_directory
)
6452 if (multilib_dir
== NULL
)
6455 printf ("%s\n", multilib_dir
);
6459 if (print_multi_os_directory
)
6461 if (multilib_os_dir
== NULL
)
6464 printf ("%s\n", multilib_os_dir
);
6468 if (print_sysroot_headers_suffix
)
6470 if (*sysroot_hdrs_suffix_spec
)
6472 printf("%s\n", (target_sysroot_hdrs_suffix
6473 ? target_sysroot_hdrs_suffix
6478 /* The error status indicates that only one set of fixed
6479 headers should be built. */
6480 fatal ("not configured with sysroot headers suffix");
6483 if (print_help_list
)
6489 printf (_("\nFor bug reporting instructions, please see:\n"));
6490 printf ("%s.\n", bug_report_url
);
6495 /* We do not exit here. Instead we have created a fake input file
6496 called 'help-dummy' which needs to be compiled, and we pass this
6497 on the various sub-processes, along with the --help switch. */
6505 notice ("Target: %s\n", spec_machine
);
6506 notice ("Configured with: %s\n", configuration_arguments
);
6508 #ifdef THREAD_MODEL_SPEC
6509 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6510 but there's no point in doing all this processing just to get
6511 thread_model back. */
6512 obstack_init (&obstack
);
6513 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6514 obstack_1grow (&obstack
, '\0');
6515 thrmod
= XOBFINISH (&obstack
, const char *);
6517 thrmod
= thread_model
;
6520 notice ("Thread model: %s\n", thrmod
);
6522 /* compiler_version is truncated at the first space when initialized
6523 from version string, so truncate version_string at the first space
6524 before comparing. */
6525 for (n
= 0; version_string
[n
]; n
++)
6526 if (version_string
[n
] == ' ')
6529 if (! strncmp (version_string
, compiler_version
, n
)
6530 && compiler_version
[n
] == 0)
6531 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
6533 notice ("gcc driver version %s %sexecuting gcc version %s\n",
6534 version_string
, pkgversion_string
, compiler_version
);
6540 if (n_infiles
== added_libraries
)
6541 fatal ("no input files");
6543 /* Make a place to record the compiler output file names
6544 that correspond to the input files. */
6547 i
+= lang_specific_extra_outfiles
;
6548 outfiles
= XCNEWVEC (const char *, i
);
6550 /* Record which files were specified explicitly as link input. */
6552 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6555 combine_inputs
= true;
6557 combine_inputs
= false;
6559 for (i
= 0; (int) i
< n_infiles
; i
++)
6561 const char *name
= infiles
[i
].name
;
6562 struct compiler
*compiler
= lookup_compiler (name
,
6564 infiles
[i
].language
);
6566 if (compiler
&& !(compiler
->combinable
))
6567 combine_inputs
= false;
6569 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6570 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6571 infiles
[i
].incompiler
= compiler
;
6575 input_file_compiler
= compiler
;
6576 infiles
[i
].incompiler
= compiler
;
6580 /* Since there is no compiler for this input file, assume it is a
6582 explicit_link_files
[i
] = 1;
6583 infiles
[i
].incompiler
= NULL
;
6585 infiles
[i
].compiled
= false;
6586 infiles
[i
].preprocessed
= false;
6589 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6590 fatal ("cannot specify -o with -c or -S with multiple files");
6592 if (combine_flag
&& save_temps_flag
)
6594 bool save_combine_inputs
= combine_inputs
;
6595 /* Must do a separate pre-processing pass for C & Objective-C files, to
6596 obtain individual .i files. */
6598 combine_inputs
= false;
6599 for (i
= 0; (int) i
< n_infiles
; i
++)
6601 int this_file_error
= 0;
6603 input_file_number
= i
;
6604 set_input (infiles
[i
].name
);
6605 if (infiles
[i
].incompiler
6606 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6607 input_file_compiler
= infiles
[i
].incompiler
;
6611 if (input_file_compiler
)
6613 if (input_file_compiler
->spec
[0] == '#')
6615 error ("%s: %s compiler not installed on this system",
6616 input_filename
, &input_file_compiler
->spec
[1]);
6617 this_file_error
= 1;
6621 value
= do_spec (input_file_compiler
->spec
);
6622 infiles
[i
].preprocessed
= true;
6623 if (!have_o_argbuf_index
)
6624 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6625 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6626 infiles
[i
].incompiler
6627 = lookup_compiler (infiles
[i
].name
,
6628 strlen (infiles
[i
].name
),
6629 infiles
[i
].language
);
6632 this_file_error
= 1;
6636 if (this_file_error
)
6638 delete_failure_queue ();
6642 clear_failure_queue ();
6644 combine_inputs
= save_combine_inputs
;
6647 for (i
= 0; (int) i
< n_infiles
; i
++)
6649 int this_file_error
= 0;
6651 /* Tell do_spec what to substitute for %i. */
6653 input_file_number
= i
;
6654 set_input (infiles
[i
].name
);
6656 if (infiles
[i
].compiled
)
6659 /* Use the same thing in %o, unless cp->spec says otherwise. */
6661 outfiles
[i
] = input_filename
;
6663 /* Figure out which compiler from the file's suffix. */
6665 if (! combine_inputs
)
6667 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6668 infiles
[i
].language
);
6670 input_file_compiler
= infiles
[i
].incompiler
;
6672 if (input_file_compiler
)
6674 /* Ok, we found an applicable compiler. Run its spec. */
6676 if (input_file_compiler
->spec
[0] == '#')
6678 error ("%s: %s compiler not installed on this system",
6679 input_filename
, &input_file_compiler
->spec
[1]);
6680 this_file_error
= 1;
6684 value
= do_spec (input_file_compiler
->spec
);
6685 infiles
[i
].compiled
= true;
6687 this_file_error
= 1;
6691 /* If this file's name does not contain a recognized suffix,
6692 record it as explicit linker input. */
6695 explicit_link_files
[i
] = 1;
6697 /* Clear the delete-on-failure queue, deleting the files in it
6698 if this compilation failed. */
6700 if (this_file_error
)
6702 delete_failure_queue ();
6705 /* If this compilation succeeded, don't delete those files later. */
6706 clear_failure_queue ();
6709 /* Reset the input file name to the first compile/object file name, for use
6710 with %b in LINK_SPEC. We use the first input file that we can find
6711 a compiler to compile it instead of using infiles.language since for
6712 languages other than C we use aliases that we then lookup later. */
6717 for (i
= 0; i
< n_infiles
; i
++)
6718 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6720 set_input (infiles
[i
].name
);
6725 if (error_count
== 0)
6727 /* Make sure INPUT_FILE_NUMBER points to first available open
6729 input_file_number
= n_infiles
;
6730 if (lang_specific_pre_link ())
6734 /* Determine if there are any linker input files. */
6735 num_linker_inputs
= 0;
6736 for (i
= 0; (int) i
< n_infiles
; i
++)
6737 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6738 num_linker_inputs
++;
6740 /* Run ld to link all the compiler output files. */
6742 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
6744 int tmp
= execution_count
;
6746 /* We'll use ld if we can't find collect2. */
6747 if (! strcmp (linker_name_spec
, "collect2"))
6749 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6751 linker_name_spec
= "ld";
6753 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6755 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6756 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6758 if (print_subprocess_help
== 1)
6760 printf (_("\nLinker options\n==============\n\n"));
6761 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6762 " to the linker.\n\n"));
6765 value
= do_spec (link_command_spec
);
6768 linker_was_run
= (tmp
!= execution_count
);
6771 /* If options said don't run linker,
6772 complain about input files to be given to the linker. */
6774 if (! linker_was_run
&& error_count
== 0)
6775 for (i
= 0; (int) i
< n_infiles
; i
++)
6776 if (explicit_link_files
[i
]
6777 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6778 error ("%s: linker input file unused because linking not done",
6781 /* Delete some or all of the temporary files we made. */
6784 delete_failure_queue ();
6785 delete_temp_files ();
6787 if (print_help_list
)
6789 printf (("\nFor bug reporting instructions, please see:\n"));
6790 printf ("%s\n", bug_report_url
);
6793 return (signal_count
!= 0 ? 2
6794 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6798 /* Find the proper compilation spec for the file name NAME,
6799 whose length is LENGTH. LANGUAGE is the specified language,
6800 or 0 if this file is to be passed to the linker. */
6802 static struct compiler
*
6803 lookup_compiler (const char *name
, size_t length
, const char *language
)
6805 struct compiler
*cp
;
6807 /* If this was specified by the user to be a linker input, indicate that. */
6808 if (language
!= 0 && language
[0] == '*')
6811 /* Otherwise, look for the language, if one is spec'd. */
6814 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6815 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6818 error ("language %s not recognized", language
);
6822 /* Look for a suffix. */
6823 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6825 if (/* The suffix `-' matches only the file name `-'. */
6826 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6827 || (strlen (cp
->suffix
) < length
6828 /* See if the suffix matches the end of NAME. */
6829 && !strcmp (cp
->suffix
,
6830 name
+ length
- strlen (cp
->suffix
))
6835 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6836 /* Look again, but case-insensitively this time. */
6838 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6840 if (/* The suffix `-' matches only the file name `-'. */
6841 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6842 || (strlen (cp
->suffix
) < length
6843 /* See if the suffix matches the end of NAME. */
6844 && ((!strcmp (cp
->suffix
,
6845 name
+ length
- strlen (cp
->suffix
))
6846 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6847 && !strcasecmp (cp
->suffix
,
6848 name
+ length
- strlen (cp
->suffix
)))
6854 if (cp
>= compilers
)
6856 if (cp
->spec
[0] != '@')
6857 /* A non-alias entry: return it. */
6860 /* An alias entry maps a suffix to a language.
6861 Search for the language; pass 0 for NAME and LENGTH
6862 to avoid infinite recursion if language not found. */
6863 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6869 save_string (const char *s
, int len
)
6871 char *result
= XNEWVEC (char, len
+ 1);
6873 memcpy (result
, s
, len
);
6879 pfatal_with_name (const char *name
)
6881 perror_with_name (name
);
6882 delete_temp_files ();
6887 perror_with_name (const char *name
)
6889 error ("%s: %s", name
, xstrerror (errno
));
6892 /* Output an error message and exit. */
6895 fancy_abort (const char *file
, int line
, const char *func
)
6897 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6900 /* Output an error message and exit. */
6903 fatal_ice (const char *cmsgid
, ...)
6907 va_start (ap
, cmsgid
);
6909 fprintf (stderr
, "%s: ", programname
);
6910 vfprintf (stderr
, _(cmsgid
), ap
);
6912 fprintf (stderr
, "\n");
6913 delete_temp_files ();
6914 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
6918 fatal (const char *cmsgid
, ...)
6922 va_start (ap
, cmsgid
);
6924 fprintf (stderr
, "%s: ", programname
);
6925 vfprintf (stderr
, _(cmsgid
), ap
);
6927 fprintf (stderr
, "\n");
6928 delete_temp_files ();
6932 /* The argument is actually c-format, not gcc-internal-format,
6933 but because functions with identical names are used through
6934 the rest of the compiler with gcc-internal-format, we just
6935 need to hope all users of these functions use the common
6936 subset between c-format and gcc-internal-format. */
6939 error (const char *gmsgid
, ...)
6943 va_start (ap
, gmsgid
);
6944 fprintf (stderr
, "%s: ", programname
);
6945 vfprintf (stderr
, _(gmsgid
), ap
);
6948 fprintf (stderr
, "\n");
6952 notice (const char *cmsgid
, ...)
6956 va_start (ap
, cmsgid
);
6957 vfprintf (stderr
, _(cmsgid
), ap
);
6962 validate_switches_from_spec (const char *spec
)
6964 const char *p
= spec
;
6967 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6968 /* We have a switch spec. */
6969 p
= validate_switches (p
+ 1);
6973 validate_all_switches (void)
6975 struct compiler
*comp
;
6976 struct spec_list
*spec
;
6978 for (comp
= compilers
; comp
->spec
; comp
++)
6979 validate_switches_from_spec (comp
->spec
);
6981 /* Look through the linked list of specs read from the specs file. */
6982 for (spec
= specs
; spec
; spec
= spec
->next
)
6983 validate_switches_from_spec (*spec
->ptr_spec
);
6985 validate_switches_from_spec (link_command_spec
);
6988 /* Look at the switch-name that comes after START
6989 and mark as valid all supplied switches that match it. */
6992 validate_switches (const char *start
)
6994 const char *p
= start
;
6998 bool suffix
= false;
6999 bool starred
= false;
7001 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7010 if (*p
== '.' || *p
== ',')
7014 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7015 || *p
== ',' || *p
== '.' || *p
== '@')
7020 starred
= true, p
++;
7026 /* Mark all matching switches as valid. */
7027 for (i
= 0; i
< n_switches
; i
++)
7028 if (!strncmp (switches
[i
].part1
, atom
, len
)
7029 && (starred
|| switches
[i
].part1
[len
] == 0))
7030 switches
[i
].validated
= 1;
7034 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7037 if (*p
&& p
[-1] == ':')
7039 while (*p
&& *p
!= ';' && *p
!= '}')
7044 if (*p
== '{' || *p
== '<')
7045 p
= validate_switches (p
+1);
7046 else if (p
[0] == 'W' && p
[1] == '{')
7047 p
= validate_switches (p
+2);
7054 if (*p
&& p
[-1] == ';')
7068 static struct mdswitchstr
*mdswitches
;
7069 static int n_mdswitches
;
7071 /* Check whether a particular argument was used. The first time we
7072 canonicalize the switches to keep only the ones we care about. */
7075 used_arg (const char *p
, int len
)
7080 const char *replace
;
7085 static struct mswitchstr
*mswitches
;
7086 static int n_mswitches
;
7091 struct mswitchstr
*matches
;
7095 /* Break multilib_matches into the component strings of string
7096 and replacement string. */
7097 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7101 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
7103 q
= multilib_matches
;
7112 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7116 matches
[i
].len
= q
- matches
[i
].str
;
7118 matches
[i
].replace
= ++q
;
7119 while (*q
!= ';' && *q
!= '\0')
7122 goto invalid_matches
;
7125 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7131 /* Now build a list of the replacement string for switches that we care
7132 about. Make sure we allocate at least one entry. This prevents
7133 xmalloc from calling fatal, and prevents us from re-executing this
7136 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7137 for (i
= 0; i
< n_switches
; i
++)
7138 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
7140 int xlen
= strlen (switches
[i
].part1
);
7141 for (j
= 0; j
< cnt
; j
++)
7142 if (xlen
== matches
[j
].len
7143 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7145 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7146 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7147 mswitches
[n_mswitches
].replace
= (char *) 0;
7148 mswitches
[n_mswitches
].rep_len
= 0;
7154 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7155 on the command line nor any options mutually incompatible with
7157 for (i
= 0; i
< n_mdswitches
; i
++)
7161 for (q
= multilib_options
; *q
!= '\0'; q
++)
7167 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7168 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7170 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7177 if (*q
!= ' ' && *q
!= '\0')
7179 while (*r
!= ' ' && *r
!= '\0')
7182 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7185 if (used_arg (r
, q
- r
))
7190 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7191 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7192 mswitches
[n_mswitches
].replace
= (char *) 0;
7193 mswitches
[n_mswitches
].rep_len
= 0;
7206 for (i
= 0; i
< n_mswitches
; i
++)
7207 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7214 default_arg (const char *p
, int len
)
7218 for (i
= 0; i
< n_mdswitches
; i
++)
7219 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7225 /* Work out the subdirectory to use based on the options. The format of
7226 multilib_select is a list of elements. Each element is a subdirectory
7227 name followed by a list of options followed by a semicolon. The format
7228 of multilib_exclusions is the same, but without the preceding
7229 directory. First gcc will check the exclusions, if none of the options
7230 beginning with an exclamation point are present, and all of the other
7231 options are present, then we will ignore this completely. Passing
7232 that, gcc will consider each multilib_select in turn using the same
7233 rules for matching the options. If a match is found, that subdirectory
7237 set_multilib_dir (void)
7240 unsigned int this_path_len
;
7241 const char *this_path
, *this_arg
;
7242 const char *start
, *end
;
7244 int ok
, ndfltok
, first
;
7247 start
= multilib_defaults
;
7248 while (*start
== ' ' || *start
== '\t')
7250 while (*start
!= '\0')
7253 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7255 while (*start
== ' ' || *start
== '\t')
7263 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7264 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7266 while (*start
== ' ' || *start
== '\t')
7272 for (end
= start
+ 1;
7273 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7276 obstack_grow (&multilib_obstack
, start
, end
- start
);
7277 obstack_1grow (&multilib_obstack
, 0);
7278 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7279 mdswitches
[i
++].len
= end
- start
;
7286 p
= multilib_exclusions
;
7289 /* Ignore newlines. */
7296 /* Check the arguments. */
7303 fatal ("multilib exclusions '%s' is invalid",
7304 multilib_exclusions
);
7314 while (*p
!= ' ' && *p
!= ';')
7317 goto invalid_exclusions
;
7321 if (*this_arg
!= '!')
7329 ok
= used_arg (this_arg
, p
- this_arg
);
7344 p
= multilib_select
;
7347 /* Ignore newlines. */
7354 /* Get the initial path. */
7361 fatal ("multilib select '%s' is invalid",
7366 this_path_len
= p
- this_path
;
7368 /* Check the arguments. */
7375 goto invalid_select
;
7384 while (*p
!= ' ' && *p
!= ';')
7387 goto invalid_select
;
7391 if (*this_arg
!= '!')
7399 /* If this is a default argument, we can just ignore it.
7400 This is true even if this_arg begins with '!'. Beginning
7401 with '!' does not mean that this argument is necessarily
7402 inappropriate for this library: it merely means that
7403 there is a more specific library which uses this
7404 argument. If this argument is a default, we need not
7405 consider that more specific library. */
7406 ok
= used_arg (this_arg
, p
- this_arg
);
7413 if (default_arg (this_arg
, p
- this_arg
))
7422 if (this_path_len
!= 1
7423 || this_path
[0] != '.')
7425 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7428 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7429 new_multilib_dir
[this_path_len
] = '\0';
7430 q
= strchr (new_multilib_dir
, ':');
7433 multilib_dir
= new_multilib_dir
;
7440 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7442 while (q
< end
&& *q
!= ':')
7446 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7447 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7448 new_multilib_os_dir
[end
- q
- 1] = '\0';
7449 multilib_os_dir
= new_multilib_os_dir
;
7457 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7458 && strcmp (multilib_os_dir
, ".") == 0)
7460 free (CONST_CAST (char *, multilib_os_dir
));
7461 multilib_os_dir
= NULL
;
7463 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7464 multilib_os_dir
= multilib_dir
;
7467 /* Print out the multiple library subdirectory selection
7468 information. This prints out a series of lines. Each line looks
7469 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7470 required. Only the desired options are printed out, the negative
7471 matches. The options are print without a leading dash. There are
7472 no spaces to make it easy to use the information in the shell.
7473 Each subdirectory is printed only once. This assumes the ordering
7474 generated by the genmultilib script. Also, we leave out ones that match
7478 print_multilib_info (void)
7480 const char *p
= multilib_select
;
7481 const char *last_path
= 0, *this_path
;
7483 unsigned int last_path_len
= 0;
7488 /* Ignore newlines. */
7495 /* Get the initial path. */
7502 fatal ("multilib select '%s' is invalid", multilib_select
);
7508 /* When --disable-multilib was used but target defines
7509 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7510 to find multilib_os_dir, so skip them from output. */
7511 if (this_path
[0] == '.' && this_path
[1] == ':')
7514 /* Check for matches with the multilib_exclusions. We don't bother
7515 with the '!' in either list. If any of the exclusion rules match
7516 all of its options with the select rule, we skip it. */
7518 const char *e
= multilib_exclusions
;
7519 const char *this_arg
;
7524 /* Ignore newlines. */
7531 /* Check the arguments. */
7540 fatal ("multilib exclusion '%s' is invalid",
7541 multilib_exclusions
);
7552 while (*e
!= ' ' && *e
!= ';')
7555 goto invalid_exclusion
;
7563 int len
= e
- this_arg
;
7566 goto invalid_select
;
7570 while (*q
!= ' ' && *q
!= ';')
7573 goto invalid_select
;
7577 if (! strncmp (arg
, this_arg
,
7578 (len
< q
- arg
) ? q
- arg
: len
)
7579 || default_arg (this_arg
, e
- this_arg
))
7609 /* If this is a duplicate, skip it. */
7610 skip
= (last_path
!= 0
7611 && (unsigned int) (p
- this_path
) == last_path_len
7612 && ! strncmp (last_path
, this_path
, last_path_len
));
7614 last_path
= this_path
;
7615 last_path_len
= p
- this_path
;
7618 /* If this directory requires any default arguments, we can skip
7619 it. We will already have printed a directory identical to
7620 this one which does not require that default argument. */
7631 goto invalid_select
;
7638 while (*q
!= ' ' && *q
!= ';')
7641 goto invalid_select
;
7646 && default_arg (arg
, q
- arg
))
7661 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7672 goto invalid_select
;
7680 use_arg
= *p
!= '!';
7685 while (*p
!= ' ' && *p
!= ';')
7688 goto invalid_select
;
7700 /* If there are extra options, print them now. */
7701 if (multilib_extra
&& *multilib_extra
)
7703 int print_at
= TRUE
;
7706 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7727 /* getenv built-in spec function.
7729 Returns the value of the environment variable given by its first
7730 argument, concatenated with the second argument. If the
7731 environment variable is not defined, a fatal error is issued. */
7734 getenv_spec_function (int argc
, const char **argv
)
7744 value
= getenv (argv
[0]);
7746 fatal ("environment variable \"%s\" not defined", argv
[0]);
7748 /* We have to escape every character of the environment variable so
7749 they are not interpretted as active spec characters. A
7750 particulaly painful case is when we are reading a variable
7751 holding a windows path complete with \ separators. */
7752 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7753 result
= xmalloc (len
);
7754 for (ptr
= result
; *value
; ptr
+= 2)
7760 strcpy (ptr
, argv
[1]);
7765 /* if-exists built-in spec function.
7767 Checks to see if the file specified by the absolute pathname in
7768 ARGS exists. Returns that pathname if found.
7770 The usual use for this function is to check for a library file
7771 (whose name has been expanded with %s). */
7774 if_exists_spec_function (int argc
, const char **argv
)
7776 /* Must have only one argument. */
7777 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7783 /* if-exists-else built-in spec function.
7785 This is like if-exists, but takes an additional argument which
7786 is returned if the first argument does not exist. */
7789 if_exists_else_spec_function (int argc
, const char **argv
)
7791 /* Must have exactly two arguments. */
7795 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7801 /* replace-outfile built-in spec function.
7803 This looks for the first argument in the outfiles array's name and
7804 replaces it with the second argument. */
7807 replace_outfile_spec_function (int argc
, const char **argv
)
7810 /* Must have exactly two arguments. */
7814 for (i
= 0; i
< n_infiles
; i
++)
7816 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7817 outfiles
[i
] = xstrdup (argv
[1]);
7822 /* Given two version numbers, compares the two numbers.
7823 A version number must match the regular expression
7824 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7827 compare_version_strings (const char *v1
, const char *v2
)
7832 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7833 REG_EXTENDED
| REG_NOSUB
) != 0)
7835 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7836 if (rresult
== REG_NOMATCH
)
7837 fatal ("invalid version number `%s'", v1
);
7838 else if (rresult
!= 0)
7840 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7841 if (rresult
== REG_NOMATCH
)
7842 fatal ("invalid version number `%s'", v2
);
7843 else if (rresult
!= 0)
7846 return strverscmp (v1
, v2
);
7850 /* version_compare built-in spec function.
7852 This takes an argument of the following form:
7854 <comparison-op> <arg1> [<arg2>] <switch> <result>
7856 and produces "result" if the comparison evaluates to true,
7857 and nothing if it doesn't.
7859 The supported <comparison-op> values are:
7861 >= true if switch is a later (or same) version than arg1
7863 < true if switch is an earlier version than arg1
7865 >< true if switch is arg1 or later, and earlier than arg2
7866 <> true if switch is earlier than arg1 or is arg2 or later
7868 If the switch is not present, the condition is false unless
7869 the first character of the <comparison-op> is '!'.
7872 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7873 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7876 version_compare_spec_function (int argc
, const char **argv
)
7880 const char *switch_value
= NULL
;
7885 fatal ("too few arguments to %%:version-compare");
7886 if (argv
[0][0] == '\0')
7888 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7890 if (argc
!= nargs
+ 3)
7891 fatal ("too many arguments to %%:version-compare");
7893 switch_len
= strlen (argv
[nargs
+ 1]);
7894 for (i
= 0; i
< n_switches
; i
++)
7895 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7896 && check_live_switch (i
, switch_len
))
7897 switch_value
= switches
[i
].part1
+ switch_len
;
7899 if (switch_value
== NULL
)
7903 comp1
= compare_version_strings (switch_value
, argv
[1]);
7905 comp2
= compare_version_strings (switch_value
, argv
[2]);
7907 comp2
= -1; /* This value unused. */
7910 switch (argv
[0][0] << 8 | argv
[0][1])
7912 case '>' << 8 | '=':
7913 result
= comp1
>= 0;
7915 case '!' << 8 | '<':
7916 result
= comp1
>= 0 || switch_value
== NULL
;
7921 case '!' << 8 | '>':
7922 result
= comp1
< 0 || switch_value
== NULL
;
7924 case '>' << 8 | '<':
7925 result
= comp1
>= 0 && comp2
< 0;
7927 case '<' << 8 | '>':
7928 result
= comp1
< 0 || comp2
>= 0;
7932 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
7937 return argv
[nargs
+ 2];
7940 /* %:include builtin spec function. This differs from %include in that it
7941 can be nested inside a spec, and thus be conditionalized. It takes
7942 one argument, the filename, and looks for it in the startfile path.
7943 The result is always NULL, i.e. an empty expansion. */
7946 include_spec_function (int argc
, const char **argv
)
7953 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, 0);
7954 read_specs (file
? file
: argv
[0], FALSE
);
7959 /* %:print-asm-header spec function. Print a banner to say that the
7960 following output is from the assembler. */
7963 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
7964 const char **argv ATTRIBUTE_UNUSED
)
7966 printf (_("Assembler options\n=================\n\n"));
7967 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));