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 (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 {".S", "@assembler-with-cpp", 0, 1, 0},
1027 {"@assembler-with-cpp",
1028 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1029 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1030 %{E|M|MM:%(cpp_debug_options)}\
1031 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1032 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1034 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1035 %{E|M|MM:%(cpp_debug_options)}\
1036 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1037 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1042 /* Mark end of table. */
1046 /* Number of elements in default_compilers, not counting the terminator. */
1048 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1050 /* A vector of options to give to the linker.
1051 These options are accumulated by %x,
1052 and substituted into the linker command with %X. */
1053 static int n_linker_options;
1054 static char **linker_options;
1056 /* A vector of options to give to the assembler.
1057 These options are accumulated by -Wa,
1058 and substituted into the assembler command with %Y. */
1059 static int n_assembler_options;
1060 static char **assembler_options;
1062 /* A vector of options to give to the preprocessor.
1063 These options are accumulated by -Wp,
1064 and substituted into the preprocessor command with %Z. */
1065 static int n_preprocessor_options;
1066 static char **preprocessor_options;
1068 /* Define how to map long options into short ones. */
1070 /* This structure describes one mapping. */
1073 /* The long option's name. */
1074 const char *const name;
1075 /* The equivalent short option. */
1076 const char *const equivalent;
1077 /* Argument info. A string of flag chars; NULL equals no options.
1078 a => argument required.
1079 o => argument optional.
1080 j => join argument to equivalent, making one word.
1081 * => require other text after NAME as an argument. */
1082 const char *const arg_info;
1085 /* This is the table of mappings. Mappings are tried sequentially
1086 for each option encountered; the first one that matches, wins. */
1088 static const struct option_map option_map[] =
1090 {"--all-warnings", "-Wall", 0},
1091 {"--ansi", "-ansi", 0},
1092 {"--assemble", "-S", 0},
1093 {"--assert", "-A", "a"},
1094 {"--classpath", "-fclasspath=", "aj"},
1095 {"--bootclasspath", "-fbootclasspath=", "aj"},
1096 {"--CLASSPATH", "-fclasspath=", "aj"},
1097 {"--combine", "-combine", 0},
1098 {"--comments", "-C", 0},
1099 {"--comments-in-macros", "-CC", 0},
1100 {"--compile", "-c", 0},
1101 {"--debug", "-g", "oj"},
1102 {"--define-macro", "-D", "aj"},
1103 {"--dependencies", "-M", 0},
1104 {"--dump", "-d", "a"},
1105 {"--dumpbase", "-dumpbase", "a"},
1106 {"--encoding", "-fencoding=", "aj"},
1107 {"--entry", "-e", 0},
1108 {"--extra-warnings", "-W", 0},
1109 {"--extdirs", "-fextdirs=", "aj"},
1110 {"--for-assembler", "-Wa", "a"},
1111 {"--for-linker", "-Xlinker", "a"},
1112 {"--force-link", "-u", "a"},
1113 {"--coverage", "-coverage", 0},
1114 {"--imacros", "-imacros", "a"},
1115 {"--include", "-include", "a"},
1116 {"--include-barrier", "-I-", 0},
1117 {"--include-directory", "-I", "aj"},
1118 {"--include-directory-after", "-idirafter", "a"},
1119 {"--include-prefix", "-iprefix", "a"},
1120 {"--include-with-prefix", "-iwithprefix", "a"},
1121 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1122 {"--include-with-prefix-after", "-iwithprefix", "a"},
1123 {"--language", "-x", "a"},
1124 {"--library-directory", "-L", "a"},
1125 {"--machine", "-m", "aj"},
1126 {"--machine-", "-m", "*j"},
1127 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1128 {"--no-line-commands", "-P", 0},
1129 {"--no-precompiled-includes", "-noprecomp", 0},
1130 {"--no-standard-includes", "-nostdinc", 0},
1131 {"--no-standard-libraries", "-nostdlib", 0},
1132 {"--no-warnings", "-w", 0},
1133 {"--optimize", "-O", "oj"},
1134 {"--output", "-o", "a"},
1135 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1136 {"--param", "--param", "a"},
1137 {"--pass-exit-codes", "-pass-exit-codes", 0},
1138 {"--pedantic", "-pedantic", 0},
1139 {"--pedantic-errors", "-pedantic-errors", 0},
1140 {"--pie", "-pie", 0},
1141 {"--pipe", "-pipe", 0},
1142 {"--prefix", "-B", "a"},
1143 {"--preprocess", "-E", 0},
1144 {"--print-search-dirs", "-print-search-dirs", 0},
1145 {"--print-file-name", "-print-file-name=", "aj"},
1146 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1147 {"--print-missing-file-dependencies", "-MG", 0},
1148 {"--print-multi-lib", "-print-multi-lib", 0},
1149 {"--print-multi-directory", "-print-multi-directory", 0},
1150 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1151 {"--print-prog-name", "-print-prog-name=", "aj"},
1152 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1153 {"--profile", "-p", 0},
1154 {"--profile-blocks", "-a", 0},
1155 {"--quiet", "-q", 0},
1156 {"--resource", "-fcompile-resource=", "aj"},
1157 {"--save-temps", "-save-temps", 0},
1158 {"--shared", "-shared", 0},
1159 {"--silent", "-q", 0},
1160 {"--specs", "-specs=", "aj"},
1161 {"--static", "-static", 0},
1162 {"--std", "-std=", "aj"},
1163 {"--symbolic", "-symbolic", 0},
1164 {"--sysroot", "--sysroot=", "aj"},
1165 {"--time", "-time", 0},
1166 {"--trace-includes", "-H", 0},
1167 {"--traditional", "-traditional", 0},
1168 {"--traditional-cpp", "-traditional-cpp", 0},
1169 {"--trigraphs", "-trigraphs", 0},
1170 {"--undefine-macro", "-U", "aj"},
1171 {"--user-dependencies", "-MM", 0},
1172 {"--verbose", "-v", 0},
1173 {"--warn-", "-W", "*j"},
1174 {"--write-dependencies", "-MD", 0},
1175 {"--write-user-dependencies", "-MMD", 0},
1180 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1181 static const struct {
1182 const char *const option_found;
1183 const char *const replacements;
1184 } target_option_translations[] =
1186 TARGET_OPTION_TRANSLATE_TABLE,
1191 /* Translate the options described by *ARGCP and *ARGVP.
1192 Make a new vector and store it back in *ARGVP,
1193 and store its length in *ARGVC. */
1196 translate_options (int *argcp, const char *const **argvp)
1200 const char *const *argv = *argvp;
1201 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1202 const char **newv = xmalloc (newvsize);
1206 newv[newindex++] = argv[i++];
1210 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1214 target_option_translations[tott_idx].option_found;
1217 if (strcmp (target_option_translations[tott_idx].option_found,
1224 for (sp = target_option_translations[tott_idx].replacements;
1231 newvsize += spaces * sizeof (const char *);
1232 newv = xrealloc (newv, newvsize);
1234 sp = target_option_translations[tott_idx].replacements;
1243 newv[newindex++] = np;
1244 while (*np != ' ' && *np)
1255 if (target_option_translations[tott_idx].option_found)
1259 /* Translate -- options. */
1260 if (argv[i][0] == '-' && argv[i][1] == '-')
1263 /* Find a mapping that applies to this option. */
1264 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1266 size_t optlen = strlen (option_map[j].name);
1267 size_t arglen = strlen (argv[i]);
1268 size_t complen = arglen > optlen ? optlen : arglen;
1269 const char *arginfo = option_map[j].arg_info;
1274 if (!strncmp (argv[i], option_map[j].name, complen))
1276 const char *arg = 0;
1278 if (arglen < optlen)
1281 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1282 if (strlen (option_map[k].name) >= arglen
1283 && !strncmp (argv[i], option_map[k].name, arglen))
1285 error ("ambiguous abbreviation %s", argv[i]);
1289 if (k != ARRAY_SIZE (option_map))
1293 if (arglen > optlen)
1295 /* If the option has an argument, accept that. */
1296 if (argv[i][optlen] == '=')
1297 arg = argv[i] + optlen + 1;
1299 /* If this mapping requires extra text at end of name,
1300 accept that as "argument". */
1301 else if (strchr (arginfo, '*') != 0)
1302 arg = argv[i] + optlen;
1304 /* Otherwise, extra text at end means mismatch.
1305 Try other mappings. */
1310 else if (strchr (arginfo, '*') != 0)
1312 error ("incomplete '%s' option", option_map[j].name);
1316 /* Handle arguments. */
1317 if (strchr (arginfo, 'a') != 0)
1323 error ("missing argument to '%s' option",
1324 option_map[j].name);
1331 else if (strchr (arginfo, '*') != 0)
1333 else if (strchr (arginfo, 'o') == 0)
1336 error ("extraneous argument to '%s' option",
1337 option_map[j].name);
1341 /* Store the translation as one argv elt or as two. */
1342 if (arg != 0 && strchr (arginfo, 'j') != 0)
1343 newv[newindex++] = concat (option_map[j].equivalent, arg,
1347 newv[newindex++] = option_map[j].equivalent;
1348 newv[newindex++] = arg;
1351 newv[newindex++] = option_map[j].equivalent;
1359 /* Handle old-fashioned options--just copy them through,
1360 with their arguments. */
1361 else if (argv[i][0] == '-')
1363 const char *p = argv[i] + 1;
1367 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1368 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1369 else if (WORD_SWITCH_TAKES_ARG (p))
1370 nskip += WORD_SWITCH_TAKES_ARG (p);
1371 else if ((c == 'B' || c == 'b' || c == 'x')
1374 else if (! strcmp (p, "Xlinker"))
1376 else if (! strcmp (p, "Xpreprocessor"))
1378 else if (! strcmp (p, "Xassembler"))
1381 /* Watch out for an option at the end of the command line that
1382 is missing arguments, and avoid skipping past the end of the
1384 if (nskip + i > argc)
1389 newv[newindex++] = argv[i++];
1394 /* Ordinary operands, or +e options. */
1395 newv[newindex++] = argv[i++];
1405 skip_whitespace (char *p)
1409 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1410 be considered whitespace. */
1411 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1413 else if (*p == '\n' || *p == ' ' || *p == '\t')
1427 /* Structures to keep track of prefixes to try when looking for files. */
1431 const char *prefix; /* String to prepend to the path. */
1432 struct prefix_list *next; /* Next in linked list. */
1433 int require_machine_suffix; /* Don't use without machine_suffix. */
1434 /* 2 means try both machine_suffix and just_machine_suffix. */
1435 int priority; /* Sort key - priority within list. */
1436 int os_multilib; /* 1 if OS multilib scheme should be used,
1437 0 for GCC multilib scheme. */
1442 struct prefix_list *plist; /* List of prefixes to try */
1443 int max_len; /* Max length of a prefix in PLIST */
1444 const char *name; /* Name of this list (used in config stuff) */
1447 /* List of prefixes to try when looking for executables. */
1449 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1451 /* List of prefixes to try when looking for startup (crt0) files. */
1453 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1455 /* List of prefixes to try when looking for include files. */
1457 static struct path_prefix include_prefixes = { 0, 0, "include" };
1459 /* Suffix to attach to directories searched for commands.
1460 This looks like `MACHINE/VERSION/'. */
1462 static const char *machine_suffix = 0;
1464 /* Suffix to attach to directories searched for commands.
1465 This is just `MACHINE/'. */
1467 static const char *just_machine_suffix = 0;
1469 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1471 static const char *gcc_exec_prefix;
1473 /* Adjusted value of standard_libexec_prefix. */
1475 static const char *gcc_libexec_prefix;
1477 /* Default prefixes to attach to command names. */
1479 #ifndef STANDARD_STARTFILE_PREFIX_1
1480 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1482 #ifndef STANDARD_STARTFILE_PREFIX_2
1483 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1486 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1487 #undef MD_EXEC_PREFIX
1488 #undef MD_STARTFILE_PREFIX
1489 #undef MD_STARTFILE_PREFIX_1
1492 /* If no prefixes defined, use the null string, which will disable them. */
1493 #ifndef MD_EXEC_PREFIX
1494 #define MD_EXEC_PREFIX ""
1496 #ifndef MD_STARTFILE_PREFIX
1497 #define MD_STARTFILE_PREFIX ""
1499 #ifndef MD_STARTFILE_PREFIX_1
1500 #define MD_STARTFILE_PREFIX_1 ""
1503 /* These directories are locations set at configure-time based on the
1504 --prefix option provided to configure. Their initializers are
1505 defined in Makefile.in. These paths are not *directly* used when
1506 gcc_exec_prefix is set because, in that case, we know where the
1507 compiler has been installed, and use paths relative to that
1508 location instead. */
1509 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1510 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1511 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1512 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1514 /* For native compilers, these are well-known paths containing
1515 components that may be provided by the system. For cross
1516 compilers, these paths are not used. */
1517 static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
1518 static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
1519 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1520 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1521 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1522 static const char *const standard_startfile_prefix_1
1523 = STANDARD_STARTFILE_PREFIX_1;
1524 static const char *const standard_startfile_prefix_2
1525 = STANDARD_STARTFILE_PREFIX_2;
1527 /* A relative path to be used in finding the location of tools
1528 relative to the driver. */
1529 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1531 /* Subdirectory to use for locating libraries. Set by
1532 set_multilib_dir based on the compilation options. */
1534 static const char *multilib_dir;
1536 /* Subdirectory to use for locating libraries in OS conventions. Set by
1537 set_multilib_dir based on the compilation options. */
1539 static const char *multilib_os_dir;
1541 /* Structure to keep track of the specs that have been defined so far.
1542 These are accessed using %(specname) or %[specname] in a compiler
1547 /* The following 2 fields must be first */
1548 /* to allow EXTRA_SPECS to be initialized */
1549 const char *name; /* name of the spec. */
1550 const char *ptr; /* available ptr if no static pointer */
1552 /* The following fields are not initialized */
1553 /* by EXTRA_SPECS */
1554 const char **ptr_spec; /* pointer to the spec itself. */
1555 struct spec_list *next; /* Next spec in linked list. */
1556 int name_len; /* length of the name */
1557 int alloc_p; /* whether string was allocated */
1560 #define INIT_STATIC_SPEC(NAME,PTR) \
1561 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1563 /* List of statically defined specs. */
1564 static struct spec_list static_specs[] =
1566 INIT_STATIC_SPEC ("asm", &asm_spec),
1567 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1568 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1569 INIT_STATIC_SPEC ("asm_options", &asm_options),
1570 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1571 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1572 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1573 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1574 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1575 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1576 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1577 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1578 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1579 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1580 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1581 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1582 INIT_STATIC_SPEC ("link", &link_spec),
1583 INIT_STATIC_SPEC ("lib", &lib_spec),
1584 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1585 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1586 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1587 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1588 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1589 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1590 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1591 INIT_STATIC_SPEC ("version", &compiler_version),
1592 INIT_STATIC_SPEC ("multilib", &multilib_select),
1593 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1594 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1595 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1596 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1597 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1598 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1599 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1600 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1601 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1602 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1603 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1604 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1605 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1606 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1609 #ifdef EXTRA_SPECS /* additional specs needed */
1610 /* Structure to keep track of just the first two args of a spec_list.
1611 That is all that the EXTRA_SPECS macro gives us. */
1614 const char *const name;
1615 const char *const ptr;
1618 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1619 static struct spec_list *extra_specs = (struct spec_list *) 0;
1622 /* List of dynamically allocates specs that have been defined so far. */
1624 static struct spec_list *specs = (struct spec_list *) 0;
1626 /* List of static spec functions. */
1628 static const struct spec_function static_spec_functions[] =
1630 { "getenv", getenv_spec_function },
1631 { "if-exists", if_exists_spec_function },
1632 { "if-exists-else", if_exists_else_spec_function },
1633 { "replace-outfile", replace_outfile_spec_function },
1634 { "version-compare", version_compare_spec_function },
1635 { "include", include_spec_function },
1636 { "print-asm-header", print_asm_header_spec_function },
1637 #ifdef EXTRA_SPEC_FUNCTIONS
1638 EXTRA_SPEC_FUNCTIONS
1643 static int processing_spec_function;
1645 /* Add appropriate libgcc specs to OBSTACK, taking into account
1646 various permutations of -shared-libgcc, -shared, and such. */
1648 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1650 #ifndef USE_LD_AS_NEEDED
1651 #define USE_LD_AS_NEEDED 0
1655 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1656 const char *static_name, const char *eh_name)
1660 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1661 "%{!static:%{!static-libgcc:"
1662 #if USE_LD_AS_NEEDED
1663 "%{!shared-libgcc:",
1664 static_name, " --as-needed ", shared_name, " --no-as-needed"
1667 shared_name, "%{!shared: ", static_name, "}"
1671 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1672 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1676 "%{shared-libgcc:", shared_name, "}"
1677 "%{!shared-libgcc:", static_name, "}"
1680 "%{shared:", shared_name, "}"
1685 obstack_grow (obstack, buf, strlen (buf));
1688 #endif /* ENABLE_SHARED_LIBGCC */
1690 /* Initialize the specs lookup routines. */
1695 struct spec_list *next = (struct spec_list *) 0;
1696 struct spec_list *sl = (struct spec_list *) 0;
1700 return; /* Already initialized. */
1703 notice ("Using built-in specs.\n");
1706 extra_specs = xcalloc (sizeof (struct spec_list),
1707 ARRAY_SIZE (extra_specs_1));
1709 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1711 sl = &extra_specs[i];
1712 sl->name = extra_specs_1[i].name;
1713 sl->ptr = extra_specs_1[i].ptr;
1715 sl->name_len = strlen (sl->name);
1716 sl->ptr_spec = &sl->ptr;
1721 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1722 on ?: in file-scope variable initializations. */
1723 asm_debug = ASM_DEBUG_SPEC;
1725 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1727 sl = &static_specs[i];
1732 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1733 /* ??? If neither -shared-libgcc nor --static-libgcc was
1734 seen, then we should be making an educated guess. Some proposed
1735 heuristics for ELF include:
1737 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1738 program will be doing dynamic loading, which will likely
1739 need the shared libgcc.
1741 (2) If "-ldl", then it's also a fair bet that we're doing
1744 (3) For each ET_DYN we're linking against (either through -lfoo
1745 or /some/path/foo.so), check to see whether it or one of
1746 its dependencies depends on a shared libgcc.
1750 If the runtime is fixed to look for program headers instead
1751 of calling __register_frame_info at all, for each object,
1752 use the shared libgcc if any EH symbol referenced.
1754 If crtstuff is fixed to not invoke __register_frame_info
1755 automatically, for each object, use the shared libgcc if
1756 any non-empty unwind section found.
1758 Doing any of this probably requires invoking an external program to
1759 do the actual object file scanning. */
1761 const char *p = libgcc_spec;
1764 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1765 when given the proper command line arguments. */
1768 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1770 init_gcc_specs (&obstack,
1772 #ifdef USE_LIBUNWIND_EXCEPTIONS
1778 #ifdef USE_LIBUNWIND_EXCEPTIONS
1779 # ifdef HAVE_LD_STATIC_DYNAMIC
1780 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1790 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1792 /* Ug. We don't know shared library extensions. Hope that
1793 systems that use this form don't do shared libraries. */
1794 init_gcc_specs (&obstack,
1798 #ifdef USE_LIBUNWIND_EXCEPTIONS
1807 obstack_1grow (&obstack, *p);
1808 in_sep = (*p == ' ');
1813 obstack_1grow (&obstack, '\0');
1814 libgcc_spec = XOBFINISH (&obstack, const char *);
1817 #ifdef USE_AS_TRADITIONAL_FORMAT
1818 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1820 static const char tf[] = "--traditional-format ";
1821 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1822 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1823 asm_spec = XOBFINISH (&obstack, const char *);
1827 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1828 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1829 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1830 link_spec = XOBFINISH (&obstack, const char *);
1836 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1837 removed; If the spec starts with a + then SPEC is added to the end of the
1841 set_spec (const char *name, const char *spec)
1843 struct spec_list *sl;
1844 const char *old_spec;
1845 int name_len = strlen (name);
1848 /* If this is the first call, initialize the statically allocated specs. */
1851 struct spec_list *next = (struct spec_list *) 0;
1852 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1854 sl = &static_specs[i];
1861 /* See if the spec already exists. */
1862 for (sl = specs; sl; sl = sl->next)
1863 if (name_len == sl->name_len && !strcmp (sl->name, name))
1868 /* Not found - make it. */
1869 sl = XNEW (struct spec_list);
1870 sl->name = xstrdup (name);
1871 sl->name_len = name_len;
1872 sl->ptr_spec = &sl->ptr;
1874 *(sl->ptr_spec) = "";
1879 old_spec = *(sl->ptr_spec);
1880 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1881 ? concat (old_spec, spec + 1, NULL)
1886 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1889 /* Free the old spec. */
1890 if (old_spec && sl->alloc_p)
1891 free (CONST_CAST(old_spec));
1896 /* Accumulate a command (program name and args), and run it. */
1898 /* Vector of pointers to arguments in the current line of specifications. */
1900 static const char **argbuf;
1902 /* Number of elements allocated in argbuf. */
1904 static int argbuf_length;
1906 /* Number of elements in argbuf currently in use (containing args). */
1908 static int argbuf_index;
1910 /* Position in the argbuf array containing the name of the output file
1911 (the value associated with the "-o" flag). */
1913 static int have_o_argbuf_index = 0;
1915 /* Were the options -c or -S passed. */
1916 static int have_c = 0;
1918 /* Was the option -o passed. */
1919 static int have_o = 0;
1921 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1922 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1925 static struct temp_name {
1926 const char *suffix; /* suffix associated with the code. */
1927 int length; /* strlen (suffix). */
1928 int unique; /* Indicates whether %g or %u/%U was used. */
1929 const char *filename; /* associated filename. */
1930 int filename_length; /* strlen (filename). */
1931 struct temp_name *next;
1934 /* Number of commands executed so far. */
1936 static int execution_count;
1938 /* Number of commands that exited with a signal. */
1940 static int signal_count;
1942 /* Name with which this program was invoked. */
1944 static const char *programname;
1946 /* Allocate the argument vector. */
1952 argbuf = XNEWVEC (const char *, argbuf_length);
1955 /* Clear out the vector of arguments (after a command is executed). */
1963 /* Add one argument to the vector at the end.
1964 This is done when a space is seen or at the end of the line.
1965 If DELETE_ALWAYS is nonzero, the arg is a filename
1966 and the file should be deleted eventually.
1967 If DELETE_FAILURE is nonzero, the arg is a filename
1968 and the file should be deleted if this compilation fails. */
1971 store_arg (const char *arg, int delete_always, int delete_failure)
1973 if (argbuf_index + 1 == argbuf_length)
1974 argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
1976 argbuf[argbuf_index++] = arg;
1977 argbuf[argbuf_index] = 0;
1979 if (strcmp (arg, "-o") == 0)
1980 have_o_argbuf_index = argbuf_index;
1981 if (delete_always || delete_failure)
1982 record_temp_file (arg, delete_always, delete_failure);
1985 /* Load specs from a file name named FILENAME, replacing occurrences of
1986 various different types of line-endings, \r\n, \n\r and just \r, with
1990 load_specs (const char *filename)
1994 struct stat statbuf;
2001 notice ("Reading specs from %s\n", filename);
2003 /* Open and stat the file. */
2004 desc = open (filename, O_RDONLY, 0);
2006 pfatal_with_name (filename);
2007 if (stat (filename, &statbuf) < 0)
2008 pfatal_with_name (filename);
2010 /* Read contents of file into BUFFER. */
2011 buffer = XNEWVEC (char, statbuf.st_size + 1);
2012 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2014 pfatal_with_name (filename);
2015 buffer[readlen] = 0;
2018 specs = XNEWVEC (char, readlen + 1);
2020 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2026 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2028 else if (*(buffer_p + 1) == '\n') /* \r\n */
2042 /* Read compilation specs from a file named FILENAME,
2043 replacing the default ones.
2045 A suffix which starts with `*' is a definition for
2046 one of the machine-specific sub-specs. The "suffix" should be
2047 *asm, *cc1, *cpp, *link, *startfile, etc.
2048 The corresponding spec is stored in asm_spec, etc.,
2049 rather than in the `compilers' vector.
2051 Anything invalid in the file is a fatal error. */
2054 read_specs (const char *filename, int main_p)
2059 buffer = load_specs (filename);
2061 /* Scan BUFFER for specs, putting them in the vector. */
2067 char *in, *out, *p1, *p2, *p3;
2069 /* Advance P in BUFFER to the next nonblank nocomment line. */
2070 p = skip_whitespace (p);
2074 /* Is this a special command that starts with '%'? */
2075 /* Don't allow this for the main specs file, since it would
2076 encourage people to overwrite it. */
2077 if (*p == '%' && !main_p)
2080 while (*p && *p != '\n')
2086 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2087 && (p1[sizeof "%include" - 1] == ' '
2088 || p1[sizeof "%include" - 1] == '\t'))
2092 p1 += sizeof ("%include");
2093 while (*p1 == ' ' || *p1 == '\t')
2096 if (*p1++ != '<' || p[-2] != '>')
2097 fatal ("specs %%include syntax malformed after %ld characters",
2098 (long) (p1 - buffer + 1));
2101 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2102 read_specs (new_filename ? new_filename : p1, FALSE);
2105 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2106 && (p1[sizeof "%include_noerr" - 1] == ' '
2107 || p1[sizeof "%include_noerr" - 1] == '\t'))
2111 p1 += sizeof "%include_noerr";
2112 while (*p1 == ' ' || *p1 == '\t')
2115 if (*p1++ != '<' || p[-2] != '>')
2116 fatal ("specs %%include syntax malformed after %ld characters",
2117 (long) (p1 - buffer + 1));
2120 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2122 read_specs (new_filename, FALSE);
2123 else if (verbose_flag)
2124 notice ("could not find specs file %s\n", p1);
2127 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2128 && (p1[sizeof "%rename" - 1] == ' '
2129 || p1[sizeof "%rename" - 1] == '\t'))
2132 struct spec_list *sl;
2133 struct spec_list *newsl;
2135 /* Get original name. */
2136 p1 += sizeof "%rename";
2137 while (*p1 == ' ' || *p1 == '\t')
2140 if (! ISALPHA ((unsigned char) *p1))
2141 fatal ("specs %%rename syntax malformed after %ld characters",
2142 (long) (p1 - buffer));
2145 while (*p2 && !ISSPACE ((unsigned char) *p2))
2148 if (*p2 != ' ' && *p2 != '\t')
2149 fatal ("specs %%rename syntax malformed after %ld characters",
2150 (long) (p2 - buffer));
2154 while (*p2 == ' ' || *p2 == '\t')
2157 if (! ISALPHA ((unsigned char) *p2))
2158 fatal ("specs %%rename syntax malformed after %ld characters",
2159 (long) (p2 - buffer));
2161 /* Get new spec name. */
2163 while (*p3 && !ISSPACE ((unsigned char) *p3))
2167 fatal ("specs %%rename syntax malformed after %ld characters",
2168 (long) (p3 - buffer));
2171 for (sl = specs; sl; sl = sl->next)
2172 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2176 fatal ("specs %s spec was not found to be renamed", p1);
2178 if (strcmp (p1, p2) == 0)
2181 for (newsl = specs; newsl; newsl = newsl->next)
2182 if (strcmp (newsl->name, p2) == 0)
2183 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2188 notice ("rename spec %s to %s\n", p1, p2);
2190 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2194 set_spec (p2, *(sl->ptr_spec));
2196 free (CONST_CAST (*(sl->ptr_spec)));
2198 *(sl->ptr_spec) = "";
2203 fatal ("specs unknown %% command after %ld characters",
2204 (long) (p1 - buffer));
2207 /* Find the colon that should end the suffix. */
2209 while (*p1 && *p1 != ':' && *p1 != '\n')
2212 /* The colon shouldn't be missing. */
2214 fatal ("specs file malformed after %ld characters",
2215 (long) (p1 - buffer));
2217 /* Skip back over trailing whitespace. */
2219 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2222 /* Copy the suffix to a string. */
2223 suffix = save_string (p, p2 - p);
2224 /* Find the next line. */
2225 p = skip_whitespace (p1 + 1);
2227 fatal ("specs file malformed after %ld characters",
2228 (long) (p - buffer));
2231 /* Find next blank line or end of string. */
2232 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2235 /* Specs end at the blank line and do not include the newline. */
2236 spec = save_string (p, p1 - p);
2239 /* Delete backslash-newline sequences from the spec. */
2244 if (in[0] == '\\' && in[1] == '\n')
2246 else if (in[0] == '#')
2247 while (*in && *in != '\n')
2255 if (suffix[0] == '*')
2257 if (! strcmp (suffix, "*link_command"))
2258 link_command_spec = spec;
2260 set_spec (suffix + 1, spec);
2264 /* Add this pair to the vector. */
2266 = xrealloc (compilers,
2267 (n_compilers + 2) * sizeof (struct compiler));
2269 compilers[n_compilers].suffix = suffix;
2270 compilers[n_compilers].spec = spec;
2272 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2276 link_command_spec = spec;
2279 if (link_command_spec == 0)
2280 fatal ("spec file has no spec for linking");
2283 /* Record the names of temporary files we tell compilers to write,
2284 and delete them at the end of the run. */
2286 /* This is the common prefix we use to make temp file names.
2287 It is chosen once for each run of this program.
2288 It is substituted into a spec by %g or %j.
2289 Thus, all temp file names contain this prefix.
2290 In practice, all temp file names start with this prefix.
2292 This prefix comes from the envvar TMPDIR if it is defined;
2293 otherwise, from the P_tmpdir macro if that is defined;
2294 otherwise, in /usr/tmp or /tmp;
2295 or finally the current directory if all else fails. */
2297 static const char *temp_filename;
2299 /* Length of the prefix. */
2301 static int temp_filename_length;
2303 /* Define the list of temporary files to delete. */
2308 struct temp_file *next;
2311 /* Queue of files to delete on success or failure of compilation. */
2312 static struct temp_file *always_delete_queue;
2313 /* Queue of files to delete on failure of compilation. */
2314 static struct temp_file *failure_delete_queue;
2316 /* Record FILENAME as a file to be deleted automatically.
2317 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2318 otherwise delete it in any case.
2319 FAIL_DELETE nonzero means delete it if a compilation step fails;
2320 otherwise delete it in any case. */
2323 record_temp_file (const char *filename, int always_delete, int fail_delete)
2325 char *const name = xstrdup (filename);
2329 struct temp_file *temp;
2330 for (temp = always_delete_queue; temp; temp = temp->next)
2331 if (! strcmp (name, temp->name))
2334 temp = XNEW (struct temp_file);
2335 temp->next = always_delete_queue;
2337 always_delete_queue = temp;
2344 struct temp_file *temp;
2345 for (temp = failure_delete_queue; temp; temp = temp->next)
2346 if (! strcmp (name, temp->name))
2349 temp = XNEW (struct temp_file);
2350 temp->next = failure_delete_queue;
2352 failure_delete_queue = temp;
2358 /* Delete all the temporary files whose names we previously recorded. */
2360 #ifndef DELETE_IF_ORDINARY
2361 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2364 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2365 if (unlink (NAME) < 0) \
2367 perror_with_name (NAME); \
2372 delete_if_ordinary (const char *name)
2378 printf ("Delete %s? (y or n) ", name);
2382 while ((c = getchar ()) != '\n' && c != EOF)
2385 if (i == 'y' || i == 'Y')
2387 DELETE_IF_ORDINARY (name, st, verbose_flag);
2391 delete_temp_files (void)
2393 struct temp_file *temp;
2395 for (temp = always_delete_queue; temp; temp = temp->next)
2396 delete_if_ordinary (temp->name);
2397 always_delete_queue = 0;
2400 /* Delete all the files to be deleted on error. */
2403 delete_failure_queue (void)
2405 struct temp_file *temp;
2407 for (temp = failure_delete_queue; temp; temp = temp->next)
2408 delete_if_ordinary (temp->name);
2412 clear_failure_queue (void)
2414 failure_delete_queue = 0;
2417 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2419 If DO_MULTI is true iterate over the paths twice, first with multilib
2420 suffix then without, otherwise iterate over the paths once without
2421 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2422 to avoid visiting the same path twice, but we could do better. For
2423 instance, /usr/lib/../lib is considered different from /usr/lib.
2424 At least EXTRA_SPACE chars past the end of the path passed to
2425 CALLBACK are available for use by the callback.
2426 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2428 Returns the value returned by CALLBACK. */
2431 for_each_path (const struct path_prefix *paths,
2434 void *(*callback) (char *, void *),
2435 void *callback_info)
2437 struct prefix_list *pl;
2438 const char *multi_dir = NULL;
2439 const char *multi_os_dir = NULL;
2440 const char *multi_suffix;
2441 const char *just_multi_suffix;
2444 bool skip_multi_dir = false;
2445 bool skip_multi_os_dir = false;
2447 multi_suffix = machine_suffix;
2448 just_multi_suffix = just_machine_suffix;
2449 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2451 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2452 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2453 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2455 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2456 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2460 size_t multi_dir_len = 0;
2461 size_t multi_os_dir_len = 0;
2463 size_t just_suffix_len;
2467 multi_dir_len = strlen (multi_dir);
2469 multi_os_dir_len = strlen (multi_os_dir);
2470 suffix_len = strlen (multi_suffix);
2471 just_suffix_len = strlen (just_multi_suffix);
2475 len = paths->max_len + extra_space + 1;
2476 if (suffix_len > multi_os_dir_len)
2479 len += multi_os_dir_len;
2480 path = XNEWVEC (char, len);
2483 for (pl = paths->plist; pl != 0; pl = pl->next)
2485 len = strlen (pl->prefix);
2486 memcpy (path, pl->prefix, len);
2488 /* Look first in MACHINE/VERSION subdirectory. */
2489 if (!skip_multi_dir)
2491 memcpy (path + len, multi_suffix, suffix_len + 1);
2492 ret = callback (path, callback_info);
2497 /* Some paths are tried with just the machine (ie. target)
2498 subdir. This is used for finding as, ld, etc. */
2500 && pl->require_machine_suffix == 2)
2502 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2503 ret = callback (path, callback_info);
2508 /* Now try the base path. */
2509 if (!pl->require_machine_suffix
2510 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2512 const char *this_multi;
2513 size_t this_multi_len;
2515 if (pl->os_multilib)
2517 this_multi = multi_os_dir;
2518 this_multi_len = multi_os_dir_len;
2522 this_multi = multi_dir;
2523 this_multi_len = multi_dir_len;
2527 memcpy (path + len, this_multi, this_multi_len + 1);
2531 ret = callback (path, callback_info);
2539 if (multi_dir == NULL && multi_os_dir == NULL)
2542 /* Run through the paths again, this time without multilibs.
2543 Don't repeat any we have already seen. */
2546 free (CONST_CAST (multi_dir));
2548 free (CONST_CAST (multi_suffix));
2549 multi_suffix = machine_suffix;
2550 free (CONST_CAST (just_multi_suffix));
2551 just_multi_suffix = just_machine_suffix;
2554 skip_multi_dir = true;
2557 free (CONST_CAST (multi_os_dir));
2558 multi_os_dir = NULL;
2561 skip_multi_os_dir = true;
2566 free (CONST_CAST (multi_dir));
2567 free (CONST_CAST (multi_suffix));
2568 free (CONST_CAST (just_multi_suffix));
2571 free (CONST_CAST (multi_os_dir));
2577 /* Callback for build_search_list. Adds path to obstack being built. */
2579 struct add_to_obstack_info {
2586 add_to_obstack (char *path, void *data)
2588 struct add_to_obstack_info *info = data;
2590 if (info->check_dir && !is_directory (path, false))
2593 if (!info->first_time)
2594 obstack_1grow (info->ob, PATH_SEPARATOR);
2596 obstack_grow (info->ob, path, strlen (path));
2598 info->first_time = false;
2602 /* Add or change the value of an environment variable, outputting the
2603 change to standard error if in verbose mode. */
2605 xputenv (char *string)
2608 notice ("%s\n", string);
2612 /* Build a list of search directories from PATHS.
2613 PREFIX is a string to prepend to the list.
2614 If CHECK_DIR_P is true we ensure the directory exists.
2615 If DO_MULTI is true, multilib paths are output first, then
2617 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2618 It is also used by the --print-search-dirs flag. */
2621 build_search_list (const struct path_prefix *paths, const char *prefix,
2622 bool check_dir, bool do_multi)
2624 struct add_to_obstack_info info;
2626 info.ob = &collect_obstack;
2627 info.check_dir = check_dir;
2628 info.first_time = true;
2630 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2631 obstack_1grow (&collect_obstack, '=');
2633 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2635 obstack_1grow (&collect_obstack, '\0');
2636 return XOBFINISH (&collect_obstack, char *);
2639 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2643 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2646 xputenv (build_search_list (paths, env_var, true, do_multi));
2649 /* Check whether NAME can be accessed in MODE. This is like access,
2650 except that it never considers directories to be executable. */
2653 access_check (const char *name, int mode)
2659 if (stat (name, &st) < 0
2660 || S_ISDIR (st.st_mode))
2664 return access (name, mode);
2667 /* Callback for find_a_file. Appends the file name to the directory
2668 path. If the resulting file exists in the right mode, return the
2669 full pathname to the file. */
2671 struct file_at_path_info {
2680 file_at_path (char *path, void *data)
2682 struct file_at_path_info *info = data;
2683 size_t len = strlen (path);
2685 memcpy (path + len, info->name, info->name_len);
2686 len += info->name_len;
2688 /* Some systems have a suffix for executable files.
2689 So try appending that first. */
2690 if (info->suffix_len)
2692 memcpy (path + len, info->suffix, info->suffix_len + 1);
2693 if (access_check (path, info->mode) == 0)
2698 if (access_check (path, info->mode) == 0)
2704 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2705 access to check permissions. If DO_MULTI is true, search multilib
2706 paths then non-multilib paths, otherwise do not search multilib paths.
2707 Return 0 if not found, otherwise return its name, allocated with malloc. */
2710 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2713 struct file_at_path_info info;
2715 #ifdef DEFAULT_ASSEMBLER
2716 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2717 return xstrdup (DEFAULT_ASSEMBLER);
2720 #ifdef DEFAULT_LINKER
2721 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2722 return xstrdup (DEFAULT_LINKER);
2725 /* Determine the filename to execute (special case for absolute paths). */
2727 if (IS_ABSOLUTE_PATH (name))
2729 if (access (name, mode) == 0)
2730 return xstrdup (name);
2736 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2737 info.name_len = strlen (info.name);
2738 info.suffix_len = strlen (info.suffix);
2741 return for_each_path (pprefix, do_multi, info.name_len + info.suffix_len,
2742 file_at_path, &info);
2745 /* Ranking of prefixes in the sort list. -B prefixes are put before
2748 enum path_prefix_priority
2750 PREFIX_PRIORITY_B_OPT,
2751 PREFIX_PRIORITY_LAST
2754 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2755 order according to PRIORITY. Within each PRIORITY, new entries are
2758 If WARN is nonzero, we will warn if no file is found
2759 through this prefix. WARN should point to an int
2760 which will be set to 1 if this entry is used.
2762 COMPONENT is the value to be passed to update_path.
2764 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2765 the complete value of machine_suffix.
2766 2 means try both machine_suffix and just_machine_suffix. */
2769 add_prefix (struct path_prefix *pprefix, const char *prefix,
2770 const char *component, /* enum prefix_priority */ int priority,
2771 int require_machine_suffix, int os_multilib)
2773 struct prefix_list *pl, **prev;
2776 for (prev = &pprefix->plist;
2777 (*prev) != NULL && (*prev)->priority <= priority;
2778 prev = &(*prev)->next)
2781 /* Keep track of the longest prefix. */
2783 prefix = update_path (prefix, component);
2784 len = strlen (prefix);
2785 if (len > pprefix->max_len)
2786 pprefix->max_len = len;
2788 pl = XNEW (struct prefix_list);
2789 pl->prefix = prefix;
2790 pl->require_machine_suffix = require_machine_suffix;
2791 pl->priority = priority;
2792 pl->os_multilib = os_multilib;
2794 /* Insert after PREV. */
2799 /* Same as add_prefix, but prepending target_system_root to prefix. */
2800 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2802 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2803 const char *component,
2804 /* enum prefix_priority */ int priority,
2805 int require_machine_suffix, int os_multilib)
2807 if (!IS_ABSOLUTE_PATH (prefix))
2808 fatal ("system path '%s' is not absolute", prefix);
2810 if (target_system_root)
2812 if (target_sysroot_suffix)
2813 prefix = concat (target_sysroot_suffix, prefix, NULL);
2814 prefix = concat (target_system_root, prefix, NULL);
2816 /* We have to override this because GCC's notion of sysroot
2817 moves along with GCC. */
2821 add_prefix (pprefix, prefix, component, priority,
2822 require_machine_suffix, os_multilib);
2825 /* Execute the command specified by the arguments on the current line of spec.
2826 When using pipes, this includes several piped-together commands
2827 with `|' between them.
2829 Return 0 if successful, -1 if failed. */
2835 int n_commands; /* # of command. */
2837 struct pex_obj *pex;
2840 const char *prog; /* program name. */
2841 const char **argv; /* vector of args. */
2844 struct command *commands; /* each command buffer with above info. */
2846 gcc_assert (!processing_spec_function);
2848 /* Count # of piped commands. */
2849 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2850 if (strcmp (argbuf[i], "|") == 0)
2853 /* Get storage for each command. */
2854 commands = alloca (n_commands * sizeof (struct command));
2856 /* Split argbuf into its separate piped processes,
2857 and record info about each one.
2858 Also search for the programs that are to be run. */
2860 commands[0].prog = argbuf[0]; /* first command. */
2861 commands[0].argv = &argbuf[0];
2862 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2865 commands[0].argv[0] = string;
2867 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2868 if (strcmp (argbuf[i], "|") == 0)
2869 { /* each command. */
2870 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2871 fatal ("-pipe not supported");
2873 argbuf[i] = 0; /* termination of command args. */
2874 commands[n_commands].prog = argbuf[i + 1];
2875 commands[n_commands].argv = &argbuf[i + 1];
2876 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2879 commands[n_commands].argv[0] = string;
2883 argbuf[argbuf_index] = 0;
2885 /* If -v, print what we are about to do, and maybe query. */
2889 /* For help listings, put a blank line between sub-processes. */
2890 if (print_help_list)
2891 fputc ('\n', stderr);
2893 /* Print each piped command as a separate line. */
2894 for (i = 0; i < n_commands; i++)
2896 const char *const *j;
2898 if (verbose_only_flag)
2900 for (j = commands[i].argv; *j; j++)
2903 fprintf (stderr, " \"");
2904 for (p = *j; *p; ++p)
2906 if (*p == '"' || *p == '\\' || *p == '$')
2907 fputc ('\\', stderr);
2910 fputc ('"', stderr);
2914 for (j = commands[i].argv; *j; j++)
2915 fprintf (stderr, " %s", *j);
2917 /* Print a pipe symbol after all but the last command. */
2918 if (i + 1 != n_commands)
2919 fprintf (stderr, " |");
2920 fprintf (stderr, "\n");
2923 if (verbose_only_flag != 0)
2925 /* verbose_only_flag should act as if the spec was
2926 executed, so increment execution_count before
2927 returning. This prevents spurious warnings about
2928 unused linker input files, etc. */
2933 notice ("\nGo ahead? (y or n) ");
2937 while (getchar () != '\n')
2940 if (i != 'y' && i != 'Y')
2945 #ifdef ENABLE_VALGRIND_CHECKING
2946 /* Run the each command through valgrind. To simplify prepending the
2947 path to valgrind and the option "-q" (for quiet operation unless
2948 something triggers), we allocate a separate argv array. */
2950 for (i = 0; i < n_commands; i++)
2956 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
2959 argv = alloca ((argc + 3) * sizeof (char *));
2961 argv[0] = VALGRIND_PATH;
2963 for (j = 2; j < argc + 2; j++)
2964 argv[j] = commands[i].argv[j - 2];
2967 commands[i].argv = argv;
2968 commands[i].prog = argv[0];
2972 /* Run each piped subprocess. */
2974 pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
2975 programname, temp_filename);
2977 pfatal_with_name (_("pex_init failed"));
2979 for (i = 0; i < n_commands; i++)
2983 const char *string = commands[i].argv[0];
2985 errmsg = pex_run (pex,
2986 ((i + 1 == n_commands ? PEX_LAST : 0)
2987 | (string == commands[i].prog ? PEX_SEARCH : 0)),
2988 string, (char * const *) CONST_CAST (commands[i].argv),
2997 pfatal_with_name (errmsg);
3001 if (string != commands[i].prog)
3002 free (CONST_CAST (string));
3007 /* Wait for all the subprocesses to finish. */
3011 struct pex_time *times = NULL;
3014 statuses = alloca (n_commands * sizeof (int));
3015 if (!pex_get_status (pex, n_commands, statuses))
3016 pfatal_with_name (_("failed to get exit status"));
3020 times = alloca (n_commands * sizeof (struct pex_time));
3021 if (!pex_get_times (pex, n_commands, times))
3022 pfatal_with_name (_("failed to get process times"));
3027 for (i = 0; i < n_commands; ++i)
3029 int status = statuses[i];
3031 if (WIFSIGNALED (status))
3034 /* SIGPIPE is a special case. It happens in -pipe mode
3035 when the compiler dies before the preprocessor is done,
3036 or the assembler dies before the compiler is done.
3037 There's generally been an error already, and this is
3038 just fallout. So don't generate another error unless
3039 we would otherwise have succeeded. */
3040 if (WTERMSIG (status) == SIGPIPE
3041 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3049 Internal error: %s (program %s)\n\
3050 Please submit a full bug report.\n\
3051 See %s for instructions.",
3052 strsignal (WTERMSIG (status)), commands[i].prog,
3055 else if (WIFEXITED (status)
3056 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3058 if (WEXITSTATUS (status) > greatest_status)
3059 greatest_status = WEXITSTATUS (status);
3065 struct pex_time *pt = ×[i];
3068 ut = ((double) pt->user_seconds
3069 + (double) pt->user_microseconds / 1.0e6);
3070 st = ((double) pt->system_seconds
3071 + (double) pt->system_microseconds / 1.0e6);
3074 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3082 /* Find all the switches given to us
3083 and make a vector describing them.
3084 The elements of the vector are strings, one per switch given.
3085 If a switch uses following arguments, then the `part1' field
3086 is the switch itself and the `args' field
3087 is a null-terminated vector containing the following arguments.
3088 The `live_cond' field is:
3090 1 if the switch is true in a conditional spec,
3091 -1 if false (overridden by a later switch)
3092 -2 if this switch should be ignored (used in %<S)
3093 The `validated' field is nonzero if any spec has looked at this switch;
3094 if it remains zero at the end of the run, it must be meaningless. */
3097 #define SWITCH_FALSE -1
3098 #define SWITCH_IGNORE -2
3099 #define SWITCH_LIVE 1
3106 unsigned char validated;
3107 unsigned char ordering;
3110 static struct switchstr *switches;
3112 static int n_switches;
3114 /* Language is one of three things:
3116 1) The name of a real programming language.
3117 2) NULL, indicating that no one has figured out
3119 3) '*', indicating that the file should be passed
3124 const char *language;
3125 struct compiler *incompiler;
3130 /* Also a vector of input files specified. */
3132 static struct infile *infiles;
3136 /* True if multiple input files are being compiled to a single
3139 static bool combine_inputs;
3141 /* This counts the number of libraries added by lang_specific_driver, so that
3142 we can tell if there were any user supplied any files or libraries. */
3144 static int added_libraries;
3146 /* And a vector of corresponding output files is made up later. */
3148 const char **outfiles;
3150 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3152 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3153 is true if we should look for an executable suffix. DO_OBJ
3154 is true if we should look for an object suffix. */
3157 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3158 int do_obj ATTRIBUTE_UNUSED)
3160 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3168 len = strlen (name);
3170 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3171 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3172 if (do_obj && len > 2
3173 && name[len - 2] == '.'
3174 && name[len - 1] == 'o')
3176 obstack_grow (&obstack, name, len - 2);
3177 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3178 name = XOBFINISH (&obstack, const char *);
3182 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3183 /* If there is no filetype, make it the executable suffix (which includes
3184 the "."). But don't get confused if we have just "-o". */
3185 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3188 for (i = len - 1; i >= 0; i--)
3189 if (IS_DIR_SEPARATOR (name[i]))
3192 for (i++; i < len; i++)
3196 obstack_grow (&obstack, name, len);
3197 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3198 strlen (TARGET_EXECUTABLE_SUFFIX));
3199 name = XOBFINISH (&obstack, const char *);
3206 /* Display the command line switches accepted by gcc. */
3210 printf (_("Usage: %s [options] file...\n"), programname);
3211 fputs (_("Options:\n"), stdout);
3213 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3214 fputs (_(" --help Display this information\n"), stdout);
3215 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3216 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout);
3217 fputs (_(" Display specific types of command line options\n"), stdout);
3219 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3220 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3221 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3222 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3223 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3224 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3225 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3226 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3227 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3229 -print-multi-lib Display the mapping between command line options and\n\
3230 multiple library search directories\n"), stdout);
3231 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3232 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3233 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3234 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3235 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3236 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3237 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3238 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3239 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3240 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3241 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3242 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3243 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3244 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3246 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3247 and libraries\n"), stdout);
3248 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3249 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3250 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3251 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3252 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3253 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3254 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3255 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3256 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3258 -x <language> Specify the language of the following input files\n\
3259 Permissible languages include: c c++ assembler none\n\
3260 'none' means revert to the default behavior of\n\
3261 guessing the language based on the file's extension\n\
3265 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3266 passed on to the various sub-processes invoked by %s. In order to pass\n\
3267 other options on to these processes the -W<letter> options must be used.\n\
3270 /* The rest of the options are displayed by invocations of the various
3275 add_preprocessor_option (const char *option, int len)
3277 n_preprocessor_options++;
3279 if (! preprocessor_options)
3280 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3282 preprocessor_options = xrealloc (preprocessor_options,
3283 n_preprocessor_options * sizeof (char *));
3285 preprocessor_options [n_preprocessor_options - 1] =
3286 save_string (option, len);
3290 add_assembler_option (const char *option, int len)
3292 n_assembler_options++;
3294 if (! assembler_options)
3295 assembler_options = XNEWVEC (char *, n_assembler_options);
3297 assembler_options = xrealloc (assembler_options,
3298 n_assembler_options * sizeof (char *));
3300 assembler_options [n_assembler_options - 1] = save_string (option, len);
3304 add_linker_option (const char *option, int len)
3308 if (! linker_options)
3309 linker_options = XNEWVEC (char *, n_linker_options);
3311 linker_options = xrealloc (linker_options,
3312 n_linker_options * sizeof (char *));
3314 linker_options [n_linker_options - 1] = save_string (option, len);
3317 /* Create the vector `switches' and its contents.
3318 Store its length in `n_switches'. */
3321 process_command (int argc, const char **argv)
3326 const char *spec_lang = 0;
3327 int last_language_n_infiles;
3328 int lang_n_infiles = 0;
3329 #ifdef MODIFY_TARGET_NAME
3330 int is_modify_target_name;
3333 const char *tooldir_prefix;
3335 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3339 added_libraries = 0;
3341 /* Figure compiler version from version string. */
3343 compiler_version = temp1 = xstrdup (version_string);
3345 for (; *temp1; ++temp1)
3354 /* If there is a -V or -b option (or both), process it now, before
3355 trying to interpret the rest of the command line.
3356 Use heuristic that all configuration names must have at least
3357 one dash '-'. This allows us to pass options starting with -b. */
3358 if (argc > 1 && argv[1][0] == '-'
3359 && (argv[1][1] == 'V' ||
3360 ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
3362 const char *new_version = DEFAULT_TARGET_VERSION;
3363 const char *new_machine = DEFAULT_TARGET_MACHINE;
3364 const char *progname = argv[0];
3369 while (argc > 1 && argv[1][0] == '-'
3370 && (argv[1][1] == 'V' ||
3371 ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
3373 char opt = argv[1][1];
3375 if (argv[1][2] != '\0')
3388 fatal ("'-%c' option must have argument", opt);
3395 for (baselen = strlen (progname); baselen > 0; baselen--)
3396 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3398 new_argv0 = xmemdup (progname, baselen,
3399 baselen + concat_length (new_version, new_machine,
3400 "-gcc-", NULL) + 1);
3401 strcpy (new_argv0 + baselen, new_machine);
3402 strcat (new_argv0, "-gcc-");
3403 strcat (new_argv0, new_version);
3405 new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
3406 (argc + 1) * sizeof (argv[0]));
3407 new_argv[0] = new_argv0;
3409 execvp (new_argv0, new_argv);
3410 fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
3413 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3414 see if we can create it from the pathname specified in argv[0]. */
3416 gcc_libexec_prefix = standard_libexec_prefix;
3418 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3419 if (!gcc_exec_prefix)
3421 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3422 standard_exec_prefix);
3423 gcc_libexec_prefix = make_relative_prefix (argv[0],
3424 standard_bindir_prefix,
3425 standard_libexec_prefix);
3426 if (gcc_exec_prefix)
3427 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3431 /* make_relative_prefix requires a program name, but
3432 GCC_EXEC_PREFIX is typically a directory name with a trailing
3433 / (which is ignored by make_relative_prefix), so append a
3435 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3436 gcc_libexec_prefix = make_relative_prefix (tmp_prefix,
3437 standard_exec_prefix,
3438 standard_libexec_prefix);
3440 /* The path is unrelocated, so fallback to the original setting. */
3441 if (!gcc_libexec_prefix)
3442 gcc_libexec_prefix = standard_libexec_prefix;
3448 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3449 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3450 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3452 if (gcc_exec_prefix)
3454 int len = strlen (gcc_exec_prefix);
3456 if (len > (int) sizeof ("/lib/gcc/") - 1
3457 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3459 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3460 if (IS_DIR_SEPARATOR (*temp)
3461 && strncmp (temp + 1, "lib", 3) == 0
3462 && IS_DIR_SEPARATOR (temp[4])
3463 && strncmp (temp + 5, "gcc", 3) == 0)
3464 len -= sizeof ("/lib/gcc/") - 1;
3467 set_std_prefix (gcc_exec_prefix, len);
3468 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3469 PREFIX_PRIORITY_LAST, 0, 0);
3470 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3471 PREFIX_PRIORITY_LAST, 0, 0);
3474 /* COMPILER_PATH and LIBRARY_PATH have values
3475 that are lists of directory names with colons. */
3477 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3480 const char *startp, *endp;
3481 char *nstore = alloca (strlen (temp) + 3);
3483 startp = endp = temp;
3486 if (*endp == PATH_SEPARATOR || *endp == 0)
3488 strncpy (nstore, startp, endp - startp);
3490 strcpy (nstore, concat (".", dir_separator_str, NULL));
3491 else if (!IS_DIR_SEPARATOR (endp[-1]))
3493 nstore[endp - startp] = DIR_SEPARATOR;
3494 nstore[endp - startp + 1] = 0;
3497 nstore[endp - startp] = 0;
3498 add_prefix (&exec_prefixes, nstore, 0,
3499 PREFIX_PRIORITY_LAST, 0, 0);
3500 add_prefix (&include_prefixes, nstore, 0,
3501 PREFIX_PRIORITY_LAST, 0, 0);
3504 endp = startp = endp + 1;
3511 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3512 if (temp && *cross_compile == '0')
3514 const char *startp, *endp;
3515 char *nstore = alloca (strlen (temp) + 3);
3517 startp = endp = temp;
3520 if (*endp == PATH_SEPARATOR || *endp == 0)
3522 strncpy (nstore, startp, endp - startp);
3524 strcpy (nstore, concat (".", dir_separator_str, NULL));
3525 else if (!IS_DIR_SEPARATOR (endp[-1]))
3527 nstore[endp - startp] = DIR_SEPARATOR;
3528 nstore[endp - startp + 1] = 0;
3531 nstore[endp - startp] = 0;
3532 add_prefix (&startfile_prefixes, nstore, NULL,
3533 PREFIX_PRIORITY_LAST, 0, 1);
3536 endp = startp = endp + 1;
3543 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3544 GET_ENVIRONMENT (temp, "LPATH");
3545 if (temp && *cross_compile == '0')
3547 const char *startp, *endp;
3548 char *nstore = alloca (strlen (temp) + 3);
3550 startp = endp = temp;
3553 if (*endp == PATH_SEPARATOR || *endp == 0)
3555 strncpy (nstore, startp, endp - startp);
3557 strcpy (nstore, concat (".", dir_separator_str, NULL));
3558 else if (!IS_DIR_SEPARATOR (endp[-1]))
3560 nstore[endp - startp] = DIR_SEPARATOR;
3561 nstore[endp - startp + 1] = 0;
3564 nstore[endp - startp] = 0;
3565 add_prefix (&startfile_prefixes, nstore, NULL,
3566 PREFIX_PRIORITY_LAST, 0, 1);
3569 endp = startp = endp + 1;
3576 /* Convert new-style -- options to old-style. */
3577 translate_options (&argc, (const char *const **) &argv);
3579 /* Do language-specific adjustment/addition of flags. */
3580 lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
3582 /* Scan argv twice. Here, the first time, just count how many switches
3583 there will be in their vector, and how many input files in theirs.
3584 Here we also parse the switches that cc itself uses (e.g. -v). */
3586 for (i = 1; i < argc; i++)
3588 if (! strcmp (argv[i], "-dumpspecs"))
3590 struct spec_list *sl;
3592 for (sl = specs; sl; sl = sl->next)
3593 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3594 if (link_command_spec)
3595 printf ("*link_command:\n%s\n\n", link_command_spec);
3598 else if (! strcmp (argv[i], "-dumpversion"))
3600 printf ("%s\n", spec_version);
3603 else if (! strcmp (argv[i], "-dumpmachine"))
3605 printf ("%s\n", spec_machine);
3608 else if (strcmp (argv[i], "-fversion") == 0)
3610 /* translate_options () has turned --version into -fversion. */
3611 printf (_("%s %s%s\n"), programname, pkgversion_string,
3613 printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
3615 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3616 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3620 else if (strcmp (argv[i], "-fhelp") == 0)
3622 /* translate_options () has turned --help into -fhelp. */
3623 print_help_list = 1;
3625 /* We will be passing a dummy file on to the sub-processes. */
3629 /* CPP driver cannot obtain switch from cc1_options. */
3631 add_preprocessor_option ("--help", 6);
3632 add_assembler_option ("--help", 6);
3633 add_linker_option ("--help", 6);
3635 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3637 /* translate_options () has turned --help into -fhelp. */
3638 print_subprocess_help = 2;
3640 /* We will be passing a dummy file on to the sub-processes. */
3644 else if (strcmp (argv[i], "-ftarget-help") == 0)
3646 /* translate_options() has turned --target-help into -ftarget-help. */
3647 print_subprocess_help = 1;
3649 /* We will be passing a dummy file on to the sub-processes. */
3653 /* CPP driver cannot obtain switch from cc1_options. */
3655 add_preprocessor_option ("--target-help", 13);
3656 add_assembler_option ("--target-help", 13);
3657 add_linker_option ("--target-help", 13);
3659 else if (! strcmp (argv[i], "-pass-exit-codes"))
3661 pass_exit_codes = 1;
3664 else if (! strcmp (argv[i], "-print-search-dirs"))
3665 print_search_dirs = 1;
3666 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3667 print_file_name = "libgcc.a";
3668 else if (! strncmp (argv[i], "-print-file-name=", 17))
3669 print_file_name = argv[i] + 17;
3670 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3671 print_prog_name = argv[i] + 17;
3672 else if (! strcmp (argv[i], "-print-multi-lib"))
3673 print_multi_lib = 1;
3674 else if (! strcmp (argv[i], "-print-multi-directory"))
3675 print_multi_directory = 1;
3676 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3677 print_multi_os_directory = 1;
3678 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3679 print_sysroot_headers_suffix = 1;
3680 else if (! strncmp (argv[i], "-Wa,", 4))
3683 /* Pass the rest of this option to the assembler. */
3685 /* Split the argument at commas. */
3687 for (j = 4; argv[i][j]; j++)
3688 if (argv[i][j] == ',')
3690 add_assembler_option (argv[i] + prev, j - prev);
3694 /* Record the part after the last comma. */
3695 add_assembler_option (argv[i] + prev, j - prev);
3697 else if (! strncmp (argv[i], "-Wp,", 4))
3700 /* Pass the rest of this option to the preprocessor. */
3702 /* Split the argument at commas. */
3704 for (j = 4; argv[i][j]; j++)
3705 if (argv[i][j] == ',')
3707 add_preprocessor_option (argv[i] + prev, j - prev);
3711 /* Record the part after the last comma. */
3712 add_preprocessor_option (argv[i] + prev, j - prev);
3714 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3715 /* The +e options to the C++ front-end. */
3717 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3720 /* Split the argument at commas. */
3721 for (j = 3; argv[i][j]; j++)
3722 n_infiles += (argv[i][j] == ',');
3724 else if (strcmp (argv[i], "-Xlinker") == 0)
3727 fatal ("argument to '-Xlinker' is missing");
3732 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3735 fatal ("argument to '-Xpreprocessor' is missing");
3737 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3739 else if (strcmp (argv[i], "-Xassembler") == 0)
3742 fatal ("argument to '-Xassembler' is missing");
3744 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3746 else if (strcmp (argv[i], "-l") == 0)
3749 fatal ("argument to '-l' is missing");
3754 else if (strncmp (argv[i], "-l", 2) == 0)
3756 else if (strcmp (argv[i], "-save-temps") == 0)
3758 save_temps_flag = 1;
3761 else if (strcmp (argv[i], "-combine") == 0)
3766 else if (strcmp (argv[i], "-specs") == 0)
3768 struct user_specs *user = XNEW (struct user_specs);
3770 fatal ("argument to '-specs' is missing");
3772 user->next = (struct user_specs *) 0;
3773 user->filename = argv[i];
3774 if (user_specs_tail)
3775 user_specs_tail->next = user;
3777 user_specs_head = user;
3778 user_specs_tail = user;
3780 else if (strncmp (argv[i], "-specs=", 7) == 0)
3782 struct user_specs *user = XNEW (struct user_specs);
3783 if (strlen (argv[i]) == 7)
3784 fatal ("argument to '-specs=' is missing");
3786 user->next = (struct user_specs *) 0;
3787 user->filename = argv[i] + 7;
3788 if (user_specs_tail)
3789 user_specs_tail->next = user;
3791 user_specs_head = user;
3792 user_specs_tail = user;
3794 else if (strcmp (argv[i], "-time") == 0)
3796 else if (strcmp (argv[i], "-pipe") == 0)
3798 /* -pipe has to go into the switches array as well as
3803 else if (strcmp (argv[i], "-###") == 0)
3805 /* This is similar to -v except that there is no execution
3806 of the commands and the echoed arguments are quoted. It
3807 is intended for use in shell scripts to capture the
3808 driver-generated command line. */
3809 verbose_only_flag++;
3812 else if (argv[i][0] == '-' && argv[i][1] != 0)
3814 const char *p = &argv[i][1];
3820 if (NULL == strchr(argv[i] + 2, '-'))
3825 fatal ("'-%c' must come at the start of the command line", c);
3833 if (p[1] == 0 && i + 1 == argc)
3834 fatal ("argument to '-B' is missing");
3840 len = strlen (value);
3842 /* Catch the case where the user has forgotten to append a
3843 directory separator to the path. Note, they may be using
3844 -B to add an executable name prefix, eg "i386-elf-", in
3845 order to distinguish between multiple installations of
3846 GCC in the same directory. Hence we must check to see
3847 if appending a directory separator actually makes a
3848 valid directory name. */
3849 if (! IS_DIR_SEPARATOR (value [len - 1])
3850 && is_directory (value, false))
3852 char *tmp = XNEWVEC (char, len + 2);
3853 strcpy (tmp, value);
3854 tmp[len] = DIR_SEPARATOR;
3859 add_prefix (&exec_prefixes, value, NULL,
3860 PREFIX_PRIORITY_B_OPT, 0, 0);
3861 add_prefix (&startfile_prefixes, value, NULL,
3862 PREFIX_PRIORITY_B_OPT, 0, 0);
3863 add_prefix (&include_prefixes, value, NULL,
3864 PREFIX_PRIORITY_B_OPT, 0, 0);
3869 case 'v': /* Print our subcommands and print versions. */
3871 /* If they do anything other than exactly `-v', don't set
3872 verbose_flag; rather, continue on to give the error. */
3890 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3895 /* Forward scan, just in case -S or -c is specified
3902 if (argv[j][0] == '-')
3904 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3910 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3911 j += skip - (argv[j][2] != 0);
3912 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3919 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3921 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3923 argv[i] = convert_filename (argv[i], ! have_c, 0);
3930 #ifdef MODIFY_TARGET_NAME
3931 is_modify_target_name = 0;
3933 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3934 if (! strcmp (argv[i], modify_target[j].sw))
3936 char *new_name = xmalloc (strlen (modify_target[j].str)
3937 + strlen (spec_machine));
3940 int made_addition = 0;
3942 is_modify_target_name = 1;
3943 for (p = spec_machine, q = new_name; *p != 0; )
3945 if (modify_target[j].add_del == DELETE
3946 && (! strncmp (q, modify_target[j].str,
3947 strlen (modify_target[j].str))))
3948 p += strlen (modify_target[j].str);
3949 else if (modify_target[j].add_del == ADD
3950 && ! made_addition && *p == '-')
3952 for (r = modify_target[j].str; *r != 0; )
3960 spec_machine = new_name;
3963 if (is_modify_target_name)
3969 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3970 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3971 else if (WORD_SWITCH_TAKES_ARG (p))
3972 i += WORD_SWITCH_TAKES_ARG (p);
3982 if (save_temps_flag && use_pipes)
3984 /* -save-temps overrides -pipe, so that temp files are produced */
3985 if (save_temps_flag)
3986 error ("warning: -pipe ignored because -save-temps specified");
3990 /* Set up the search paths. We add directories that we expect to
3991 contain GNU Toolchain components before directories specified by
3992 the machine description so that we will find GNU components (like
3993 the GNU assembler) before those of the host system. */
3995 /* If we don't know where the toolchain has been installed, use the
3996 configured-in locations. */
3997 if (!gcc_exec_prefix)
4000 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4001 PREFIX_PRIORITY_LAST, 1, 0);
4002 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4003 PREFIX_PRIORITY_LAST, 2, 0);
4004 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4005 PREFIX_PRIORITY_LAST, 2, 0);
4007 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4008 PREFIX_PRIORITY_LAST, 1, 0);
4011 /* If not cross-compiling, search well-known system locations. */
4012 if (*cross_compile == '0')
4015 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
4016 PREFIX_PRIORITY_LAST, 2, 0);
4017 add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
4018 PREFIX_PRIORITY_LAST, 2, 0);
4020 add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
4021 PREFIX_PRIORITY_LAST, 1, 0);
4024 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4025 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4026 dir_separator_str, NULL);
4028 /* Look for tools relative to the location from which the driver is
4029 running, or, if that is not available, the configured prefix. */
4031 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4032 spec_machine, dir_separator_str,
4033 spec_version, dir_separator_str, tooldir_prefix, NULL);
4035 add_prefix (&exec_prefixes,
4036 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4037 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4038 add_prefix (&startfile_prefixes,
4039 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4040 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4042 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4043 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4044 then consider it to relocate with the rest of the GCC installation
4045 if GCC_EXEC_PREFIX is set.
4046 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4047 if (target_system_root && gcc_exec_prefix)
4049 char *tmp_prefix = make_relative_prefix (argv[0],
4050 standard_bindir_prefix,
4051 target_system_root);
4052 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4054 target_system_root = tmp_prefix;
4055 target_system_root_changed = 1;
4060 /* More prefixes are enabled in main, after we read the specs file
4061 and determine whether this is cross-compilation or not. */
4063 /* Then create the space for the vectors and scan again. */
4065 switches = XNEWVEC (struct switchstr, n_switches + 1);
4066 infiles = XNEWVEC (struct infile, n_infiles + 1);
4069 last_language_n_infiles = -1;
4071 /* This, time, copy the text of each switch and store a pointer
4072 to the copy in the vector of switches.
4073 Store all the infiles in their vector. */
4075 for (i = 1; i < argc; i++)
4077 /* Just skip the switches that were handled by the preceding loop. */
4078 #ifdef MODIFY_TARGET_NAME
4079 is_modify_target_name = 0;
4081 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4082 if (! strcmp (argv[i], modify_target[j].sw))
4083 is_modify_target_name = 1;
4085 if (is_modify_target_name)
4089 if (! strncmp (argv[i], "-Wa,", 4))
4091 else if (! strncmp (argv[i], "-Wp,", 4))
4093 else if (! strcmp (argv[i], "-pass-exit-codes"))
4095 else if (! strcmp (argv[i], "-print-search-dirs"))
4097 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4099 else if (! strncmp (argv[i], "-print-file-name=", 17))
4101 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4103 else if (! strcmp (argv[i], "-print-multi-lib"))
4105 else if (! strcmp (argv[i], "-print-multi-directory"))
4107 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4109 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4111 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4113 target_system_root = argv[i] + strlen ("--sysroot=");
4114 target_system_root_changed = 1;
4116 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4118 /* Compensate for the +e options to the C++ front-end;
4119 they're there simply for cfront call-compatibility. We do
4120 some magic in default_compilers to pass them down properly.
4121 Note we deliberately start at the `+' here, to avoid passing
4122 -e0 or -e1 down into the linker. */
4123 switches[n_switches].part1 = &argv[i][0];
4124 switches[n_switches].args = 0;
4125 switches[n_switches].live_cond = SWITCH_OK;
4126 switches[n_switches].validated = 0;
4129 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4132 /* Split the argument at commas. */
4134 for (j = 4; argv[i][j]; j++)
4135 if (argv[i][j] == ',')
4137 infiles[n_infiles].language = "*";
4138 infiles[n_infiles++].name
4139 = save_string (argv[i] + prev, j - prev);
4142 /* Record the part after the last comma. */
4143 infiles[n_infiles].language = "*";
4144 infiles[n_infiles++].name = argv[i] + prev;
4146 else if (strcmp (argv[i], "-Xlinker") == 0)
4148 infiles[n_infiles].language = "*";
4149 infiles[n_infiles++].name = argv[++i];
4151 /* Xassembler and Xpreprocessor were already handled in the first argv
4152 scan, so all we need to do here is ignore them and their argument. */
4153 else if (strcmp (argv[i], "-Xassembler") == 0)
4155 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4157 else if (strcmp (argv[i], "-l") == 0)
4158 { /* POSIX allows separation of -l and the lib arg;
4159 canonicalize by concatenating -l with its arg */
4160 infiles[n_infiles].language = "*";
4161 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4163 else if (strncmp (argv[i], "-l", 2) == 0)
4165 infiles[n_infiles].language = "*";
4166 infiles[n_infiles++].name = argv[i];
4168 else if (strcmp (argv[i], "-specs") == 0)
4170 else if (strncmp (argv[i], "-specs=", 7) == 0)
4172 else if (strcmp (argv[i], "-time") == 0)
4174 else if (strcmp (argv[i], "-###") == 0)
4176 else if (argv[i][0] == '-' && argv[i][1] != 0)
4178 const char *p = &argv[i][1];
4183 if (p[1] == 0 && i + 1 == argc)
4184 fatal ("argument to '-x' is missing");
4186 spec_lang = argv[++i];
4189 if (! strcmp (spec_lang, "none"))
4190 /* Suppress the warning if -xnone comes after the last input
4191 file, because alternate command interfaces like g++ might
4192 find it useful to place -xnone after each input file. */
4195 last_language_n_infiles = n_infiles;
4198 switches[n_switches].part1 = p;
4199 /* Deal with option arguments in separate argv elements. */
4200 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4201 || WORD_SWITCH_TAKES_ARG (p))
4204 int n_args = WORD_SWITCH_TAKES_ARG (p);
4208 /* Count only the option arguments in separate argv elements. */
4209 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4211 if (i + n_args >= argc)
4212 fatal ("argument to '-%s' is missing", p);
4213 switches[n_switches].args
4214 = XNEWVEC (const char *, n_args + 1);
4216 switches[n_switches].args[j++] = argv[++i];
4217 /* Null-terminate the vector. */
4218 switches[n_switches].args[j] = 0;
4220 else if (strchr (switches_need_spaces, c))
4222 /* On some systems, ld cannot handle some options without
4223 a space. So split the option from its argument. */
4224 char *part1 = XNEWVEC (char, 2);
4228 switches[n_switches].part1 = part1;
4229 switches[n_switches].args = XNEWVEC (const char *, 2);
4230 switches[n_switches].args[0] = xstrdup (p+1);
4231 switches[n_switches].args[1] = 0;
4234 switches[n_switches].args = 0;
4236 switches[n_switches].live_cond = SWITCH_OK;
4237 switches[n_switches].validated = 0;
4238 switches[n_switches].ordering = 0;
4239 /* These are always valid, since gcc.c itself understands the
4240 first four and gfortranspec.c understands -static-libgfortran. */
4241 if (!strcmp (p, "save-temps")
4242 || !strcmp (p, "static-libgcc")
4243 || !strcmp (p, "shared-libgcc")
4244 || !strcmp (p, "pipe")
4245 || !strcmp (p, "static-libgfortran"))
4246 switches[n_switches].validated = 1;
4249 char ch = switches[n_switches].part1[0];
4251 switches[n_switches].validated = 1;
4257 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4258 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4261 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4263 perror_with_name (argv[i]);
4268 infiles[n_infiles].language = spec_lang;
4269 infiles[n_infiles++].name = argv[i];
4274 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4275 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4277 /* Ensure we only invoke each subprocess once. */
4278 if (print_subprocess_help || print_help_list)
4282 /* Create a dummy input file, so that we can pass
4283 the help option on to the various sub-processes. */
4284 infiles[0].language = "c";
4285 infiles[0].name = "help-dummy";
4288 switches[n_switches].part1 = 0;
4289 infiles[n_infiles].name = 0;
4292 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4293 and place that in the environment. */
4296 set_collect_gcc_options (void)
4301 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4303 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4304 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4307 for (i = 0; (int) i < n_switches; i++)
4309 const char *const *args;
4312 obstack_grow (&collect_obstack, " ", 1);
4316 /* Ignore elided switches. */
4317 if (switches[i].live_cond == SWITCH_IGNORE)
4320 obstack_grow (&collect_obstack, "'-", 2);
4321 q = switches[i].part1;
4322 while ((p = strchr (q, '\'')))
4324 obstack_grow (&collect_obstack, q, p - q);
4325 obstack_grow (&collect_obstack, "'\\''", 4);
4328 obstack_grow (&collect_obstack, q, strlen (q));
4329 obstack_grow (&collect_obstack, "'", 1);
4331 for (args = switches[i].args; args && *args; args++)
4333 obstack_grow (&collect_obstack, " '", 2);
4335 while ((p = strchr (q, '\'')))
4337 obstack_grow (&collect_obstack, q, p - q);
4338 obstack_grow (&collect_obstack, "'\\''", 4);
4341 obstack_grow (&collect_obstack, q, strlen (q));
4342 obstack_grow (&collect_obstack, "'", 1);
4345 obstack_grow (&collect_obstack, "\0", 1);
4346 xputenv (XOBFINISH (&collect_obstack, char *));
4349 /* Process a spec string, accumulating and running commands. */
4351 /* These variables describe the input file name.
4352 input_file_number is the index on outfiles of this file,
4353 so that the output file name can be stored for later use by %o.
4354 input_basename is the start of the part of the input file
4355 sans all directory names, and basename_length is the number
4356 of characters starting there excluding the suffix .c or whatever. */
4358 static const char *input_filename;
4359 static int input_file_number;
4360 size_t input_filename_length;
4361 static int basename_length;
4362 static int suffixed_basename_length;
4363 static const char *input_basename;
4364 static const char *input_suffix;
4365 #ifndef HOST_LACKS_INODE_NUMBERS
4366 static struct stat input_stat;
4368 static int input_stat_set;
4370 /* The compiler used to process the current input file. */
4371 static struct compiler *input_file_compiler;
4373 /* These are variables used within do_spec and do_spec_1. */
4375 /* Nonzero if an arg has been started and not yet terminated
4376 (with space, tab or newline). */
4377 static int arg_going;
4379 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4380 is a temporary file name. */
4381 static int delete_this_arg;
4383 /* Nonzero means %w has been seen; the next arg to be terminated
4384 is the output file name of this compilation. */
4385 static int this_is_output_file;
4387 /* Nonzero means %s has been seen; the next arg to be terminated
4388 is the name of a library file and we should try the standard
4389 search dirs for it. */
4390 static int this_is_library_file;
4392 /* Nonzero means that the input of this command is coming from a pipe. */
4393 static int input_from_pipe;
4395 /* Nonnull means substitute this for any suffix when outputting a switches
4397 static const char *suffix_subst;
4399 /* If there is an argument being accumulated, terminate it and store it. */
4402 end_going_arg (void)
4408 obstack_1grow (&obstack, 0);
4409 string = XOBFINISH (&obstack, const char *);
4410 if (this_is_library_file)
4411 string = find_file (string);
4412 store_arg (string, delete_this_arg, this_is_output_file);
4413 if (this_is_output_file)
4414 outfiles[input_file_number] = string;
4419 /* Process the spec SPEC and run the commands specified therein.
4420 Returns 0 if the spec is successfully processed; -1 if failed. */
4423 do_spec (const char *spec)
4427 value = do_spec_2 (spec);
4429 /* Force out any unfinished command.
4430 If -pipe, this forces out the last command if it ended in `|'. */
4433 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4436 set_collect_gcc_options ();
4438 if (argbuf_index > 0)
4446 do_spec_2 (const char *spec)
4452 delete_this_arg = 0;
4453 this_is_output_file = 0;
4454 this_is_library_file = 0;
4455 input_from_pipe = 0;
4456 suffix_subst = NULL;
4458 result = do_spec_1 (spec, 0, NULL);
4466 /* Process the given spec string and add any new options to the end
4467 of the switches/n_switches array. */
4470 do_option_spec (const char *name, const char *spec)
4472 unsigned int i, value_count, value_len;
4473 const char *p, *q, *value;
4474 char *tmp_spec, *tmp_spec_p;
4476 if (configure_default_options[0].name == NULL)
4479 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4480 if (strcmp (configure_default_options[i].name, name) == 0)
4482 if (i == ARRAY_SIZE (configure_default_options))
4485 value = configure_default_options[i].value;
4486 value_len = strlen (value);
4488 /* Compute the size of the final spec. */
4491 while ((p = strstr (p, "%(VALUE)")) != NULL)
4497 /* Replace each %(VALUE) by the specified value. */
4498 tmp_spec = alloca (strlen (spec) + 1
4499 + value_count * (value_len - strlen ("%(VALUE)")));
4500 tmp_spec_p = tmp_spec;
4502 while ((p = strstr (q, "%(VALUE)")) != NULL)
4504 memcpy (tmp_spec_p, q, p - q);
4505 tmp_spec_p = tmp_spec_p + (p - q);
4506 memcpy (tmp_spec_p, value, value_len);
4507 tmp_spec_p += value_len;
4508 q = p + strlen ("%(VALUE)");
4510 strcpy (tmp_spec_p, q);
4512 do_self_spec (tmp_spec);
4515 /* Process the given spec string and add any new options to the end
4516 of the switches/n_switches array. */
4519 do_self_spec (const char *spec)
4522 do_spec_1 (" ", 0, NULL);
4524 if (argbuf_index > 0)
4529 n_switches += argbuf_index;
4530 switches = xrealloc (switches,
4531 sizeof (struct switchstr) * (n_switches + 1));
4533 switches[n_switches] = switches[first];
4534 for (i = 0; i < argbuf_index; i++)
4536 struct switchstr *sw;
4538 /* Each switch should start with '-'. */
4539 if (argbuf[i][0] != '-')
4540 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4542 sw = &switches[i + first];
4543 sw->part1 = &argbuf[i][1];
4545 sw->live_cond = SWITCH_OK;
4552 /* Callback for processing %D and %I specs. */
4554 struct spec_path_info {
4559 bool separate_options;
4563 spec_path (char *path, void *data)
4565 struct spec_path_info *info = data;
4569 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
4572 if (info->append_len != 0)
4574 len = strlen (path);
4575 memcpy (path + len, info->append, info->append_len + 1);
4578 if (!is_directory (path, true))
4581 do_spec_1 (info->option, 1, NULL);
4582 if (info->separate_options)
4583 do_spec_1 (" ", 0, NULL);
4585 if (info->append_len == 0)
4587 len = strlen (path);
4588 save = path[len - 1];
4589 if (IS_DIR_SEPARATOR (path[len - 1]))
4590 path[len - 1] = '\0';
4593 do_spec_1 (path, 1, NULL);
4594 do_spec_1 (" ", 0, NULL);
4596 /* Must not damage the original path. */
4597 if (info->append_len == 0)
4598 path[len - 1] = save;
4603 /* Process the sub-spec SPEC as a portion of a larger spec.
4604 This is like processing a whole spec except that we do
4605 not initialize at the beginning and we do not supply a
4606 newline by default at the end.
4607 INSWITCH nonzero means don't process %-sequences in SPEC;
4608 in this case, % is treated as an ordinary character.
4609 This is used while substituting switches.
4610 INSWITCH nonzero also causes SPC not to terminate an argument.
4612 Value is zero unless a line was finished
4613 and the command on that line reported an error. */
4616 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
4618 const char *p = spec;
4624 /* If substituting a switch, treat all chars like letters.
4625 Otherwise, NL, SPC, TAB and % are special. */
4626 switch (inswitch ? 'a' : c)
4631 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4633 /* A `|' before the newline means use a pipe here,
4634 but only if -pipe was specified.
4635 Otherwise, execute now and don't pass the `|' as an arg. */
4638 input_from_pipe = 1;
4645 set_collect_gcc_options ();
4647 if (argbuf_index > 0)
4653 /* Reinitialize for a new command, and for a new argument. */
4656 delete_this_arg = 0;
4657 this_is_output_file = 0;
4658 this_is_library_file = 0;
4659 input_from_pipe = 0;
4666 obstack_1grow (&obstack, c);
4674 /* Reinitialize for a new argument. */
4675 delete_this_arg = 0;
4676 this_is_output_file = 0;
4677 this_is_library_file = 0;
4684 fatal ("spec '%s' invalid", spec);
4687 obstack_grow (&obstack, input_basename, basename_length);
4692 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4697 delete_this_arg = 2;
4700 /* Dump out the directories specified with LIBRARY_PATH,
4701 followed by the absolute directories
4702 that we search for startfiles. */
4705 struct spec_path_info info;
4708 info.append_len = 0;
4709 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4710 /* Used on systems which record the specified -L dirs
4711 and use them to search for dynamic linking.
4712 Relative directories always come from -B,
4713 and it is better not to use them for searching
4714 at run time. In particular, stage1 loses. */
4715 info.omit_relative = true;
4717 info.omit_relative = false;
4719 info.separate_options = false;
4721 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
4726 /* %efoo means report an error with `foo' as error message
4727 and don't execute any more commands for this file. */
4731 while (*p != 0 && *p != '\n')
4733 buf = alloca (p - q + 1);
4734 strncpy (buf, q, p - q);
4741 /* %nfoo means report a notice with `foo' on stderr. */
4745 while (*p != 0 && *p != '\n')
4747 buf = alloca (p - q + 1);
4748 strncpy (buf, q, p - q);
4750 notice ("%s\n", buf);
4760 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4761 defined, and it is not a directory, and it is
4762 writable, use it. Otherwise, treat this like any
4763 other temporary file. */
4765 if ((!save_temps_flag)
4766 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4767 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4769 obstack_grow (&obstack, HOST_BIT_BUCKET,
4770 strlen (HOST_BIT_BUCKET));
4771 delete_this_arg = 0;
4776 goto create_temp_file;
4780 obstack_1grow (&obstack, '-');
4781 delete_this_arg = 0;
4784 /* consume suffix */
4785 while (*p == '.' || ISALNUM ((unsigned char) *p))
4787 if (p[0] == '%' && p[1] == 'O')
4792 goto create_temp_file;
4796 /* consume suffix */
4797 while (*p == '.' || ISALNUM ((unsigned char) *p))
4799 if (p[0] == '%' && p[1] == 'O')
4804 goto create_temp_file;
4810 struct temp_name *t;
4812 const char *suffix = p;
4813 char *saved_suffix = NULL;
4815 while (*p == '.' || ISALNUM ((unsigned char) *p))
4817 suffix_length = p - suffix;
4818 if (p[0] == '%' && p[1] == 'O')
4821 /* We don't support extra suffix characters after %O. */
4822 if (*p == '.' || ISALNUM ((unsigned char) *p))
4823 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
4824 if (suffix_length == 0)
4825 suffix = TARGET_OBJECT_SUFFIX;
4829 = XNEWVEC (char, suffix_length
4830 + strlen (TARGET_OBJECT_SUFFIX));
4831 strncpy (saved_suffix, suffix, suffix_length);
4832 strcpy (saved_suffix + suffix_length,
4833 TARGET_OBJECT_SUFFIX);
4835 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4838 /* If the input_filename has the same suffix specified
4839 for the %g, %u, or %U, and -save-temps is specified,
4840 we could end up using that file as an intermediate
4841 thus clobbering the user's source file (.e.g.,
4842 gcc -save-temps foo.s would clobber foo.s with the
4843 output of cpp0). So check for this condition and
4844 generate a temp file as the intermediate. */
4846 if (save_temps_flag)
4850 temp_filename_length = basename_length + suffix_length;
4851 tmp = alloca (temp_filename_length + 1);
4852 strncpy (tmp, input_basename, basename_length);
4853 strncpy (tmp + basename_length, suffix, suffix_length);
4854 tmp[temp_filename_length] = '\0';
4855 temp_filename = tmp;
4856 if (strcmp (temp_filename, input_filename) != 0)
4858 #ifndef HOST_LACKS_INODE_NUMBERS
4859 struct stat st_temp;
4861 /* Note, set_input() resets input_stat_set to 0. */
4862 if (input_stat_set == 0)
4864 input_stat_set = stat (input_filename, &input_stat);
4865 if (input_stat_set >= 0)
4869 /* If we have the stat for the input_filename
4870 and we can do the stat for the temp_filename
4871 then the they could still refer to the same
4872 file if st_dev/st_ino's are the same. */
4873 if (input_stat_set != 1
4874 || stat (temp_filename, &st_temp) < 0
4875 || input_stat.st_dev != st_temp.st_dev
4876 || input_stat.st_ino != st_temp.st_ino)
4878 /* Just compare canonical pathnames. */
4879 char* input_realname = lrealpath (input_filename);
4880 char* temp_realname = lrealpath (temp_filename);
4881 bool files_differ = strcmp (input_realname, temp_realname);
4882 free (input_realname);
4883 free (temp_realname);
4887 temp_filename = save_string (temp_filename,
4888 temp_filename_length + 1);
4889 obstack_grow (&obstack, temp_filename,
4890 temp_filename_length);
4892 delete_this_arg = 0;
4898 /* See if we already have an association of %g/%u/%U and
4900 for (t = temp_names; t; t = t->next)
4901 if (t->length == suffix_length
4902 && strncmp (t->suffix, suffix, suffix_length) == 0
4903 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
4906 /* Make a new association if needed. %u and %j
4908 if (t == 0 || c == 'u' || c == 'j')
4912 t = xmalloc (sizeof (struct temp_name));
4913 t->next = temp_names;
4916 t->length = suffix_length;
4919 t->suffix = saved_suffix;
4920 saved_suffix = NULL;
4923 t->suffix = save_string (suffix, suffix_length);
4924 t->unique = (c == 'u' || c == 'U' || c == 'j');
4925 temp_filename = make_temp_file (t->suffix);
4926 temp_filename_length = strlen (temp_filename);
4927 t->filename = temp_filename;
4928 t->filename_length = temp_filename_length;
4932 free (saved_suffix);
4934 obstack_grow (&obstack, t->filename, t->filename_length);
4935 delete_this_arg = 1;
4943 for (i = 0; (int) i < n_infiles; i++)
4944 if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
4945 if (infiles[i].incompiler == input_file_compiler)
4947 store_arg (infiles[i].name, 0, 0);
4948 infiles[i].compiled = true;
4953 obstack_grow (&obstack, input_filename, input_filename_length);
4960 struct spec_path_info info;
4964 do_spec_1 ("-imultilib", 1, NULL);
4965 /* Make this a separate argument. */
4966 do_spec_1 (" ", 0, NULL);
4967 do_spec_1 (multilib_dir, 1, NULL);
4968 do_spec_1 (" ", 0, NULL);
4971 if (gcc_exec_prefix)
4973 do_spec_1 ("-iprefix", 1, NULL);
4974 /* Make this a separate argument. */
4975 do_spec_1 (" ", 0, NULL);
4976 do_spec_1 (gcc_exec_prefix, 1, NULL);
4977 do_spec_1 (" ", 0, NULL);
4980 if (target_system_root_changed ||
4981 (target_system_root && target_sysroot_hdrs_suffix))
4983 do_spec_1 ("-isysroot", 1, NULL);
4984 /* Make this a separate argument. */
4985 do_spec_1 (" ", 0, NULL);
4986 do_spec_1 (target_system_root, 1, NULL);
4987 if (target_sysroot_hdrs_suffix)
4988 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
4989 do_spec_1 (" ", 0, NULL);
4992 info.option = "-isystem";
4993 info.append = "include";
4994 info.append_len = strlen (info.append);
4995 info.omit_relative = false;
4996 info.separate_options = true;
4998 for_each_path (&include_prefixes, false, info.append_len,
5001 info.append = "include-fixed";
5002 if (*sysroot_hdrs_suffix_spec)
5003 info.append = concat (info.append, dir_separator_str,
5004 multilib_dir, NULL);
5005 info.append_len = strlen (info.append);
5006 for_each_path (&include_prefixes, false, info.append_len,
5013 int max = n_infiles;
5014 max += lang_specific_extra_outfiles;
5016 if (HAVE_GNU_LD && at_file_supplied)
5018 /* We are going to expand `%o' to `@FILE', where FILE
5019 is a newly-created temporary filename. The filenames
5020 that would usually be expanded in place of %o will be
5021 written to the temporary file. */
5023 char *temp_file = make_temp_file ("");
5026 int n_files, j, status;
5029 at_argument = concat ("@", temp_file, NULL);
5030 store_arg (at_argument, 0, 0);
5032 /* Convert OUTFILES into a form suitable for writeargv. */
5034 /* Determine how many are non-NULL. */
5035 for (n_files = 0, i = 0; i < max; i++)
5036 n_files += outfiles[i] != NULL;
5038 argv = alloca (sizeof (char *) * (n_files + 1));
5040 /* Copy the strings over. */
5041 for (i = 0, j = 0; i < max; i++)
5044 argv[j] = (char *) CONST_CAST (outfiles[i]);
5049 f = fopen (temp_file, "w");
5052 fatal ("could not open temporary response file %s",
5055 status = writeargv (argv, f);
5058 fatal ("could not write to temporary response file %s",
5061 status = fclose (f);
5064 fatal ("could not close temporary response file %s",
5067 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5070 for (i = 0; i < max; i++)
5072 store_arg (outfiles[i], 0, 0);
5077 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5082 this_is_library_file = 1;
5086 outfiles[input_file_number] = NULL;
5090 this_is_output_file = 1;
5095 int cur_index = argbuf_index;
5096 /* Handle the {...} following the %W. */
5098 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5099 p = handle_braces (p + 1);
5103 /* If any args were output, mark the last one for deletion
5105 if (argbuf_index != cur_index)
5106 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5110 /* %x{OPTION} records OPTION for %X to output. */
5116 /* Skip past the option value and make a copy. */
5118 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5121 string = save_string (p1 + 1, p - p1 - 2);
5123 /* See if we already recorded this option. */
5124 for (i = 0; i < n_linker_options; i++)
5125 if (! strcmp (string, linker_options[i]))
5131 /* This option is new; add it. */
5132 add_linker_option (string, strlen (string));
5136 /* Dump out the options accumulated previously using %x. */
5138 for (i = 0; i < n_linker_options; i++)
5140 do_spec_1 (linker_options[i], 1, NULL);
5141 /* Make each accumulated option a separate argument. */
5142 do_spec_1 (" ", 0, NULL);
5146 /* Dump out the options accumulated previously using -Wa,. */
5148 for (i = 0; i < n_assembler_options; i++)
5150 do_spec_1 (assembler_options[i], 1, NULL);
5151 /* Make each accumulated option a separate argument. */
5152 do_spec_1 (" ", 0, NULL);
5156 /* Dump out the options accumulated previously using -Wp,. */
5158 for (i = 0; i < n_preprocessor_options; i++)
5160 do_spec_1 (preprocessor_options[i], 1, NULL);
5161 /* Make each accumulated option a separate argument. */
5162 do_spec_1 (" ", 0, NULL);
5166 /* Here are digits and numbers that just process
5167 a certain constant string as a spec. */
5170 value = do_spec_1 (cc1_spec, 0, NULL);
5176 value = do_spec_1 (cc1plus_spec, 0, NULL);
5182 value = do_spec_1 (asm_spec, 0, NULL);
5188 value = do_spec_1 (asm_final_spec, 0, NULL);
5195 const char *const spec
5196 = (input_file_compiler->cpp_spec
5197 ? input_file_compiler->cpp_spec
5199 value = do_spec_1 (spec, 0, NULL);
5206 value = do_spec_1 (endfile_spec, 0, NULL);
5212 value = do_spec_1 (link_spec, 0, NULL);
5218 value = do_spec_1 (lib_spec, 0, NULL);
5224 value = do_spec_1 (libgcc_spec, 0, NULL);
5230 /* We assume there is a directory
5231 separator at the end of this string. */
5232 if (target_system_root)
5234 obstack_grow (&obstack, target_system_root,
5235 strlen (target_system_root));
5236 if (target_sysroot_suffix)
5237 obstack_grow (&obstack, target_sysroot_suffix,
5238 strlen (target_sysroot_suffix));
5243 value = do_spec_1 (startfile_spec, 0, NULL);
5248 /* Here we define characters other than letters and digits. */
5251 p = handle_braces (p);
5257 p = handle_spec_function (p);
5263 obstack_1grow (&obstack, '%');
5270 while (p[len] && p[len] != ' ' && p[len] != '%')
5272 suffix_subst = save_string (p - 1, len + 1);
5277 /* Henceforth ignore the option(s) matching the pattern
5282 int have_wildcard = 0;
5285 while (p[len] && p[len] != ' ' && p[len] != '\t')
5288 if (p[len-1] == '*')
5291 for (i = 0; i < n_switches; i++)
5292 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5293 && (have_wildcard || switches[i].part1[len] == '\0'))
5295 switches[i].live_cond = SWITCH_IGNORE;
5296 switches[i].validated = 1;
5304 if (soft_matched_part)
5306 do_spec_1 (soft_matched_part, 1, NULL);
5307 do_spec_1 (" ", 0, NULL);
5310 /* Catch the case where a spec string contains something like
5311 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5312 hand side of the :. */
5313 error ("spec failure: '%%*' has not been initialized by pattern match");
5316 /* Process a string found as the value of a spec given by name.
5317 This feature allows individual machine descriptions
5318 to add and use their own specs.
5319 %[...] modifies -D options the way %P does;
5320 %(...) uses the spec unmodified. */
5322 error ("warning: use of obsolete %%[ operator in specs");
5325 const char *name = p;
5326 struct spec_list *sl;
5329 /* The string after the S/P is the name of a spec that is to be
5331 while (*p && *p != ')' && *p != ']')
5334 /* See if it's in the list. */
5335 for (len = p - name, sl = specs; sl; sl = sl->next)
5336 if (sl->name_len == len && !strncmp (sl->name, name, len))
5338 name = *(sl->ptr_spec);
5340 notice ("Processing spec %c%s%c, which is '%s'\n",
5341 c, sl->name, (c == '(') ? ')' : ']', name);
5350 value = do_spec_1 (name, 0, NULL);
5356 char *x = alloca (strlen (name) * 2 + 1);
5358 const char *y = name;
5361 /* Copy all of NAME into BUF, but put __ after
5362 every -D and at the end of each arg. */
5365 if (! strncmp (y, "-D", 2))
5376 && (*y == ' ' || *y == '\t' || *y == '='
5377 || *y == '}' || *y == 0))
5390 value = do_spec_1 (buf, 0, NULL);
5396 /* Discard the closing paren or bracket. */
5403 error ("spec failure: unrecognized spec option '%c'", c);
5409 /* Backslash: treat next character as ordinary. */
5414 /* Ordinary character: put it into the current argument. */
5415 obstack_1grow (&obstack, c);
5419 /* End of string. If we are processing a spec function, we need to
5420 end any pending argument. */
5421 if (processing_spec_function)
5427 /* Look up a spec function. */
5429 static const struct spec_function *
5430 lookup_spec_function (const char *name)
5432 const struct spec_function *sf;
5434 for (sf = static_spec_functions; sf->name != NULL; sf++)
5435 if (strcmp (sf->name, name) == 0)
5441 /* Evaluate a spec function. */
5444 eval_spec_function (const char *func, const char *args)
5446 const struct spec_function *sf;
5447 const char *funcval;
5449 /* Saved spec processing context. */
5450 int save_argbuf_index;
5451 int save_argbuf_length;
5452 const char **save_argbuf;
5455 int save_delete_this_arg;
5456 int save_this_is_output_file;
5457 int save_this_is_library_file;
5458 int save_input_from_pipe;
5459 const char *save_suffix_subst;
5462 sf = lookup_spec_function (func);
5464 fatal ("unknown spec function '%s'", func);
5466 /* Push the spec processing context. */
5467 save_argbuf_index = argbuf_index;
5468 save_argbuf_length = argbuf_length;
5469 save_argbuf = argbuf;
5471 save_arg_going = arg_going;
5472 save_delete_this_arg = delete_this_arg;
5473 save_this_is_output_file = this_is_output_file;
5474 save_this_is_library_file = this_is_library_file;
5475 save_input_from_pipe = input_from_pipe;
5476 save_suffix_subst = suffix_subst;
5478 /* Create a new spec processing context, and build the function
5482 if (do_spec_2 (args) < 0)
5483 fatal ("error in args to spec function '%s'", func);
5485 /* argbuf_index is an index for the next argument to be inserted, and
5486 so contains the count of the args already inserted. */
5488 funcval = (*sf->func) (argbuf_index, argbuf);
5490 /* Pop the spec processing context. */
5491 argbuf_index = save_argbuf_index;
5492 argbuf_length = save_argbuf_length;
5494 argbuf = save_argbuf;
5496 arg_going = save_arg_going;
5497 delete_this_arg = save_delete_this_arg;
5498 this_is_output_file = save_this_is_output_file;
5499 this_is_library_file = save_this_is_library_file;
5500 input_from_pipe = save_input_from_pipe;
5501 suffix_subst = save_suffix_subst;
5506 /* Handle a spec function call of the form:
5510 ARGS is processed as a spec in a separate context and split into an
5511 argument vector in the normal fashion. The function returns a string
5512 containing a spec which we then process in the caller's context, or
5513 NULL if no processing is required. */
5516 handle_spec_function (const char *p)
5519 const char *endp, *funcval;
5522 processing_spec_function++;
5524 /* Get the function name. */
5525 for (endp = p; *endp != '\0'; endp++)
5527 if (*endp == '(') /* ) */
5529 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5530 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
5531 fatal ("malformed spec function name");
5533 if (*endp != '(') /* ) */
5534 fatal ("no arguments for spec function");
5535 func = save_string (p, endp - p);
5538 /* Get the arguments. */
5539 for (count = 0; *endp != '\0'; endp++)
5548 else if (*endp == '(') /* ) */
5553 fatal ("malformed spec function arguments");
5554 args = save_string (p, endp - p);
5557 /* p now points to just past the end of the spec function expression. */
5559 funcval = eval_spec_function (func, args);
5560 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
5566 processing_spec_function--;
5571 /* Inline subroutine of handle_braces. Returns true if the current
5572 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5574 input_suffix_matches (const char *atom, const char *end_atom)
5576 return (input_suffix
5577 && !strncmp (input_suffix, atom, end_atom - atom)
5578 && input_suffix[end_atom - atom] == '\0');
5581 /* Subroutine of handle_braces. Returns true if the current
5582 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5584 input_spec_matches (const char *atom, const char *end_atom)
5586 return (input_file_compiler
5587 && input_file_compiler->suffix
5588 && input_file_compiler->suffix[0] != '\0'
5589 && !strncmp (input_file_compiler->suffix + 1, atom,
5591 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
5594 /* Subroutine of handle_braces. Returns true if a switch
5595 matching the atom bracketed by ATOM and END_ATOM appeared on the
5598 switch_matches (const char *atom, const char *end_atom, int starred)
5601 int len = end_atom - atom;
5602 int plen = starred ? len : -1;
5604 for (i = 0; i < n_switches; i++)
5605 if (!strncmp (switches[i].part1, atom, len)
5606 && (starred || switches[i].part1[len] == '\0')
5607 && check_live_switch (i, plen))
5613 /* Inline subroutine of handle_braces. Mark all of the switches which
5614 match ATOM (extends to END_ATOM; STARRED indicates whether there
5615 was a star after the atom) for later processing. */
5617 mark_matching_switches (const char *atom, const char *end_atom, int starred)
5620 int len = end_atom - atom;
5621 int plen = starred ? len : -1;
5623 for (i = 0; i < n_switches; i++)
5624 if (!strncmp (switches[i].part1, atom, len)
5625 && (starred || switches[i].part1[len] == '\0')
5626 && check_live_switch (i, plen))
5627 switches[i].ordering = 1;
5630 /* Inline subroutine of handle_braces. Process all the currently
5631 marked switches through give_switch, and clear the marks. */
5633 process_marked_switches (void)
5637 for (i = 0; i < n_switches; i++)
5638 if (switches[i].ordering == 1)
5640 switches[i].ordering = 0;
5645 /* Handle a %{ ... } construct. P points just inside the leading {.
5646 Returns a pointer one past the end of the brace block, or 0
5647 if we call do_spec_1 and that returns -1. */
5650 handle_braces (const char *p)
5652 const char *atom, *end_atom;
5653 const char *d_atom = NULL, *d_end_atom = NULL;
5654 const char *orig = p;
5662 bool a_must_be_last = false;
5663 bool ordered_set = false;
5664 bool disjunct_set = false;
5665 bool disj_matched = false;
5666 bool disj_starred = true;
5667 bool n_way_choice = false;
5668 bool n_way_matched = false;
5670 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5677 /* Scan one "atom" (S in the description above of %{}, possibly
5678 with '!', '.', '@', ',', or '*' modifiers). */
5680 a_is_suffix = false;
5681 a_is_starred = false;
5682 a_is_negated = false;
5683 a_is_spectype = false;
5687 p++, a_is_negated = true;
5691 p++, a_is_suffix = true;
5693 p++, a_is_spectype = true;
5696 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
5697 || *p == ',' || *p == '.' || *p == '@')
5702 p++, a_is_starred = 1;
5708 /* Substitute the switch(es) indicated by the current atom. */
5710 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
5711 || a_is_spectype || atom == end_atom)
5714 mark_matching_switches (atom, end_atom, a_is_starred);
5717 process_marked_switches ();
5721 /* Substitute some text if the current atom appears as a switch
5723 disjunct_set = true;
5727 if (atom == end_atom)
5729 if (!n_way_choice || disj_matched || *p == '|'
5730 || a_is_negated || a_is_suffix || a_is_spectype
5734 /* An empty term may appear as the last choice of an
5735 N-way choice set; it means "otherwise". */
5736 a_must_be_last = true;
5737 disj_matched = !n_way_matched;
5738 disj_starred = false;
5742 if ((a_is_suffix || a_is_spectype) && a_is_starred)
5746 disj_starred = false;
5748 /* Don't bother testing this atom if we already have a
5750 if (!disj_matched && !n_way_matched)
5753 a_matched = input_suffix_matches (atom, end_atom);
5754 else if (a_is_spectype)
5755 a_matched = input_spec_matches (atom, end_atom);
5757 a_matched = switch_matches (atom, end_atom, a_is_starred);
5759 if (a_matched != a_is_negated)
5761 disj_matched = true;
5763 d_end_atom = end_atom;
5770 /* Found the body, that is, the text to substitute if the
5771 current disjunction matches. */
5772 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
5773 disj_matched && !n_way_matched);
5777 /* If we have an N-way choice, reset state for the next
5781 n_way_choice = true;
5782 n_way_matched |= disj_matched;
5783 disj_matched = false;
5784 disj_starred = true;
5785 d_atom = d_end_atom = NULL;
5794 while (*p++ != '}');
5799 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
5804 /* Subroutine of handle_braces. Scan and process a brace substitution body
5805 (X in the description of %{} syntax). P points one past the colon;
5806 ATOM and END_ATOM bracket the first atom which was found to be true
5807 (present) in the current disjunction; STARRED indicates whether all
5808 the atoms in the current disjunction were starred (for syntax validation);
5809 MATCHED indicates whether the disjunction matched or not, and therefore
5810 whether or not the body is to be processed through do_spec_1 or just
5811 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5815 process_brace_body (const char *p, const char *atom, const char *end_atom,
5816 int starred, int matched)
5818 const char *body, *end_body;
5819 unsigned int nesting_level;
5820 bool have_subst = false;
5822 /* Locate the closing } or ;, honoring nested braces.
5823 Trim trailing whitespace. */
5832 if (!--nesting_level)
5835 else if (*p == ';' && nesting_level == 1)
5837 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
5839 else if (*p == '\0')
5845 while (end_body[-1] == ' ' || end_body[-1] == '\t')
5848 if (have_subst && !starred)
5853 /* Copy the substitution body to permanent storage and execute it.
5854 If have_subst is false, this is a simple matter of running the
5855 body through do_spec_1... */
5856 char *string = save_string (body, end_body - body);
5859 if (do_spec_1 (string, 0, NULL) < 0)
5864 /* ... but if have_subst is true, we have to process the
5865 body once for each matching switch, with %* set to the
5866 variant part of the switch. */
5867 unsigned int hard_match_len = end_atom - atom;
5870 for (i = 0; i < n_switches; i++)
5871 if (!strncmp (switches[i].part1, atom, hard_match_len)
5872 && check_live_switch (i, hard_match_len))
5874 if (do_spec_1 (string, 0,
5875 &switches[i].part1[hard_match_len]) < 0)
5877 /* Pass any arguments this switch has. */
5879 suffix_subst = NULL;
5887 fatal ("braced spec body '%s' is invalid", body);
5890 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5891 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5892 spec, or -1 if either exact match or %* is used.
5894 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5895 whose value does not begin with "no-" is obsoleted by the same value
5896 with the "no-", similarly for a switch with the "no-" prefix. */
5899 check_live_switch (int switchnum, int prefix_length)
5901 const char *name = switches[switchnum].part1;
5904 /* In the common case of {<at-most-one-letter>*}, a negating
5905 switch would always match, so ignore that case. We will just
5906 send the conflicting switches to the compiler phase. */
5907 if (prefix_length >= 0 && prefix_length <= 1)
5910 /* If we already processed this switch and determined if it was
5911 live or not, return our past determination. */
5912 if (switches[switchnum].live_cond != 0)
5913 return switches[switchnum].live_cond > 0;
5915 /* Now search for duplicate in a manner that depends on the name. */
5919 for (i = switchnum + 1; i < n_switches; i++)
5920 if (switches[i].part1[0] == 'O')
5922 switches[switchnum].validated = 1;
5923 switches[switchnum].live_cond = SWITCH_FALSE;
5928 case 'W': case 'f': case 'm':
5929 if (! strncmp (name + 1, "no-", 3))
5931 /* We have Xno-YYY, search for XYYY. */
5932 for (i = switchnum + 1; i < n_switches; i++)
5933 if (switches[i].part1[0] == name[0]
5934 && ! strcmp (&switches[i].part1[1], &name[4]))
5936 switches[switchnum].validated = 1;
5937 switches[switchnum].live_cond = SWITCH_FALSE;
5943 /* We have XYYY, search for Xno-YYY. */
5944 for (i = switchnum + 1; i < n_switches; i++)
5945 if (switches[i].part1[0] == name[0]
5946 && switches[i].part1[1] == 'n'
5947 && switches[i].part1[2] == 'o'
5948 && switches[i].part1[3] == '-'
5949 && !strcmp (&switches[i].part1[4], &name[1]))
5951 switches[switchnum].validated = 1;
5952 switches[switchnum].live_cond = SWITCH_FALSE;
5959 /* Otherwise the switch is live. */
5960 switches[switchnum].live_cond = SWITCH_LIVE;
5964 /* Pass a switch to the current accumulating command
5965 in the same form that we received it.
5966 SWITCHNUM identifies the switch; it is an index into
5967 the vector of switches gcc received, which is `switches'.
5968 This cannot fail since it never finishes a command line.
5970 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5973 give_switch (int switchnum, int omit_first_word)
5975 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5978 if (!omit_first_word)
5980 do_spec_1 ("-", 0, NULL);
5981 do_spec_1 (switches[switchnum].part1, 1, NULL);
5984 if (switches[switchnum].args != 0)
5987 for (p = switches[switchnum].args; *p; p++)
5989 const char *arg = *p;
5991 do_spec_1 (" ", 0, NULL);
5994 unsigned length = strlen (arg);
5997 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5998 if (arg[length] == '.')
6000 ((char *)CONST_CAST(arg))[length] = 0;
6004 do_spec_1 (arg, 1, NULL);
6006 ((char *)CONST_CAST(arg))[length] = '.';
6007 do_spec_1 (suffix_subst, 1, NULL);
6010 do_spec_1 (arg, 1, NULL);
6014 do_spec_1 (" ", 0, NULL);
6015 switches[switchnum].validated = 1;
6018 /* Search for a file named NAME trying various prefixes including the
6019 user's -B prefix and some standard ones.
6020 Return the absolute file name found. If nothing is found, return NAME. */
6023 find_file (const char *name)
6025 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6026 return newname ? newname : name;
6029 /* Determine whether a directory exists. If LINKER, return 0 for
6030 certain fixed names not needed by the linker. */
6033 is_directory (const char *path1, bool linker)
6040 /* Ensure the string ends with "/.". The resulting path will be a
6041 directory even if the given path is a symbolic link. */
6042 len1 = strlen (path1);
6043 path = alloca (3 + len1);
6044 memcpy (path, path1, len1);
6046 if (!IS_DIR_SEPARATOR (cp[-1]))
6047 *cp++ = DIR_SEPARATOR;
6051 /* Exclude directories that the linker is known to search. */
6053 && IS_DIR_SEPARATOR (path[0])
6055 && strncmp (path + 1, "lib", 3) == 0)
6057 && strncmp (path + 1, "usr", 3) == 0
6058 && IS_DIR_SEPARATOR (path[4])
6059 && strncmp (path + 5, "lib", 3) == 0)))
6062 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6065 /* Set up the various global variables to indicate that we're processing
6066 the input file named FILENAME. */
6069 set_input (const char *filename)
6073 input_filename = filename;
6074 input_filename_length = strlen (input_filename);
6076 input_basename = input_filename;
6077 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6078 /* Skip drive name so 'x:foo' is handled properly. */
6079 if (input_basename[1] == ':')
6080 input_basename += 2;
6082 for (p = input_basename; *p; p++)
6083 if (IS_DIR_SEPARATOR (*p))
6084 input_basename = p + 1;
6086 /* Find a suffix starting with the last period,
6087 and set basename_length to exclude that suffix. */
6088 basename_length = strlen (input_basename);
6089 suffixed_basename_length = basename_length;
6090 p = input_basename + basename_length;
6091 while (p != input_basename && *p != '.')
6093 if (*p == '.' && p != input_basename)
6095 basename_length = p - input_basename;
6096 input_suffix = p + 1;
6101 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6102 we will need to do a stat on the input_filename. The
6103 INPUT_STAT_SET signals that the stat is needed. */
6107 /* On fatal signals, delete all the temporary files. */
6110 fatal_error (int signum)
6112 signal (signum, SIG_DFL);
6113 delete_failure_queue ();
6114 delete_temp_files ();
6115 /* Get the same signal again, this time not handled,
6116 so its normal effect occurs. */
6117 kill (getpid (), signum);
6120 extern int main (int, char **);
6123 main (int argc, char **argv)
6127 int linker_was_run = 0;
6128 int lang_n_infiles = 0;
6129 int num_linker_inputs = 0;
6130 char *explicit_link_files;
6133 struct user_specs *uptr;
6134 char **old_argv = argv;
6136 p = argv[0] + strlen (argv[0]);
6137 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6141 xmalloc_set_program_name (programname);
6143 expandargv (&argc, &argv);
6145 /* Determine if any expansions were made. */
6146 if (argv != old_argv)
6147 at_file_supplied = true;
6149 prune_options (&argc, &argv);
6151 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6152 /* Perform host dependent initialization when needed. */
6153 GCC_DRIVER_HOST_INITIALIZATION;
6156 /* Unlock the stdio streams. */
6157 unlock_std_streams ();
6159 gcc_init_libintl ();
6161 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6162 signal (SIGINT, fatal_error);
6164 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6165 signal (SIGHUP, fatal_error);
6167 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6168 signal (SIGTERM, fatal_error);
6170 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6171 signal (SIGPIPE, fatal_error);
6174 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6175 receive the signal. A different setting is inheritable */
6176 signal (SIGCHLD, SIG_DFL);
6179 /* Allocate the argument vector. */
6182 obstack_init (&obstack);
6184 /* Build multilib_select, et. al from the separate lines that make up each
6185 multilib selection. */
6187 const char *const *q = multilib_raw;
6190 obstack_init (&multilib_obstack);
6191 while ((p = *q++) != (char *) 0)
6192 obstack_grow (&multilib_obstack, p, strlen (p));
6194 obstack_1grow (&multilib_obstack, 0);
6195 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6197 q = multilib_matches_raw;
6198 while ((p = *q++) != (char *) 0)
6199 obstack_grow (&multilib_obstack, p, strlen (p));
6201 obstack_1grow (&multilib_obstack, 0);
6202 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6204 q = multilib_exclusions_raw;
6205 while ((p = *q++) != (char *) 0)
6206 obstack_grow (&multilib_obstack, p, strlen (p));
6208 obstack_1grow (&multilib_obstack, 0);
6209 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6212 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6215 obstack_1grow (&multilib_obstack, ' ');
6216 obstack_grow (&multilib_obstack,
6217 multilib_defaults_raw[i],
6218 strlen (multilib_defaults_raw[i]));
6222 obstack_1grow (&multilib_obstack, 0);
6223 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6226 /* Set up to remember the pathname of gcc and any options
6227 needed for collect. We use argv[0] instead of programname because
6228 we need the complete pathname. */
6229 obstack_init (&collect_obstack);
6230 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6231 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
6232 xputenv (XOBFINISH (&collect_obstack, char *));
6234 #ifdef INIT_ENVIRONMENT
6235 /* Set up any other necessary machine specific environment variables. */
6236 xputenv (INIT_ENVIRONMENT);
6239 /* Make a table of what switches there are (switches, n_switches).
6240 Make a table of specified input files (infiles, n_infiles).
6241 Decode switches that are handled locally. */
6243 process_command (argc, (const char **) argv);
6245 /* Initialize the vector of specs to just the default.
6246 This means one element containing 0s, as a terminator. */
6248 compilers = xmalloc (sizeof default_compilers);
6249 memcpy (compilers, default_compilers, sizeof default_compilers);
6250 n_compilers = n_default_compilers;
6252 /* Read specs from a file if there is one. */
6254 machine_suffix = concat (spec_machine, dir_separator_str,
6255 spec_version, dir_separator_str, NULL);
6256 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6258 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6259 /* Read the specs file unless it is a default one. */
6260 if (specs_file != 0 && strcmp (specs_file, "specs"))
6261 read_specs (specs_file, TRUE);
6265 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6266 for any override of as, ld and libraries. */
6267 specs_file = alloca (strlen (standard_exec_prefix)
6268 + strlen (just_machine_suffix) + sizeof ("specs"));
6270 strcpy (specs_file, standard_exec_prefix);
6271 strcat (specs_file, just_machine_suffix);
6272 strcat (specs_file, "specs");
6273 if (access (specs_file, R_OK) == 0)
6274 read_specs (specs_file, TRUE);
6276 /* Process any configure-time defaults specified for the command line
6277 options, via OPTION_DEFAULT_SPECS. */
6278 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6279 do_option_spec (option_default_specs[i].name,
6280 option_default_specs[i].spec);
6282 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6283 of the command line. */
6285 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6286 do_self_spec (driver_self_specs[i]);
6288 /* If not cross-compiling, look for executables in the standard
6290 if (*cross_compile == '0')
6292 if (*md_exec_prefix)
6294 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6295 PREFIX_PRIORITY_LAST, 0, 0);
6299 /* Process sysroot_suffix_spec. */
6300 if (*sysroot_suffix_spec != 0
6301 && do_spec_2 (sysroot_suffix_spec) == 0)
6303 if (argbuf_index > 1)
6304 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6305 else if (argbuf_index == 1)
6306 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6309 #ifdef HAVE_LD_SYSROOT
6310 /* Pass the --sysroot option to the linker, if it supports that. If
6311 there is a sysroot_suffix_spec, it has already been processed by
6312 this point, so target_system_root really is the system root we
6314 if (target_system_root)
6316 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6317 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6318 set_spec ("link", XOBFINISH (&obstack, const char *));
6322 /* Process sysroot_hdrs_suffix_spec. */
6323 if (*sysroot_hdrs_suffix_spec != 0
6324 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6326 if (argbuf_index > 1)
6327 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6328 else if (argbuf_index == 1)
6329 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6332 /* Look for startfiles in the standard places. */
6333 if (*startfile_prefix_spec != 0
6334 && do_spec_2 (startfile_prefix_spec) == 0
6335 && do_spec_1 (" ", 0, NULL) == 0)
6338 for (ndx = 0; ndx < argbuf_index; ndx++)
6339 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
6340 PREFIX_PRIORITY_LAST, 0, 1);
6342 /* We should eventually get rid of all these and stick to
6343 startfile_prefix_spec exclusively. */
6344 else if (*cross_compile == '0' || target_system_root)
6346 if (*md_startfile_prefix)
6347 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
6348 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6350 if (*md_startfile_prefix_1)
6351 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
6352 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6354 /* If standard_startfile_prefix is relative, base it on
6355 standard_exec_prefix. This lets us move the installed tree
6356 as a unit. If GCC_EXEC_PREFIX is defined, base
6357 standard_startfile_prefix on that as well.
6359 If the prefix is relative, only search it for native compilers;
6360 otherwise we will search a directory containing host libraries. */
6361 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
6362 add_sysrooted_prefix (&startfile_prefixes,
6363 standard_startfile_prefix, "BINUTILS",
6364 PREFIX_PRIORITY_LAST, 0, 1);
6365 else if (*cross_compile == '0')
6367 add_prefix (&startfile_prefixes,
6368 concat (gcc_exec_prefix
6369 ? gcc_exec_prefix : standard_exec_prefix,
6371 standard_startfile_prefix, NULL),
6372 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6375 /* Sysrooted prefixes are relocated because target_system_root is
6376 also relocated by gcc_exec_prefix. */
6377 if (*standard_startfile_prefix_1)
6378 add_sysrooted_prefix (&startfile_prefixes,
6379 standard_startfile_prefix_1, "BINUTILS",
6380 PREFIX_PRIORITY_LAST, 0, 1);
6381 if (*standard_startfile_prefix_2)
6382 add_sysrooted_prefix (&startfile_prefixes,
6383 standard_startfile_prefix_2, "BINUTILS",
6384 PREFIX_PRIORITY_LAST, 0, 1);
6387 /* Process any user specified specs in the order given on the command
6389 for (uptr = user_specs_head; uptr; uptr = uptr->next)
6391 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
6393 read_specs (filename ? filename : uptr->filename, FALSE);
6396 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6397 if (gcc_exec_prefix)
6398 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
6399 spec_version, dir_separator_str, NULL);
6401 /* Now we have the specs.
6402 Set the `valid' bits for switches that match anything in any spec. */
6404 validate_all_switches ();
6406 /* Now that we have the switches and the specs, set
6407 the subdirectory based on the options. */
6408 set_multilib_dir ();
6410 /* Warn about any switches that no pass was interested in. */
6412 for (i = 0; (int) i < n_switches; i++)
6413 if (! switches[i].validated)
6414 error ("unrecognized option '-%s'", switches[i].part1);
6416 /* Obey some of the options. */
6418 if (print_search_dirs)
6420 printf (_("install: %s%s\n"),
6421 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
6422 gcc_exec_prefix ? "" : machine_suffix);
6423 printf (_("programs: %s\n"),
6424 build_search_list (&exec_prefixes, "", false, false));
6425 printf (_("libraries: %s\n"),
6426 build_search_list (&startfile_prefixes, "", false, true));
6430 if (print_file_name)
6432 printf ("%s\n", find_file (print_file_name));
6436 if (print_prog_name)
6438 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
6439 printf ("%s\n", (newname ? newname : print_prog_name));
6443 if (print_multi_lib)
6445 print_multilib_info ();
6449 if (print_multi_directory)
6451 if (multilib_dir == NULL)
6454 printf ("%s\n", multilib_dir);
6458 if (print_multi_os_directory)
6460 if (multilib_os_dir == NULL)
6463 printf ("%s\n", multilib_os_dir);
6467 if (print_sysroot_headers_suffix)
6469 if (*sysroot_hdrs_suffix_spec)
6471 printf("%s\n", (target_sysroot_hdrs_suffix
6472 ? target_sysroot_hdrs_suffix
6477 /* The error status indicates that only one set of fixed
6478 headers should be built. */
6479 fatal ("not configured with sysroot headers suffix");
6482 if (print_help_list)
6488 printf (_("\nFor bug reporting instructions, please see:\n"));
6489 printf ("%s.\n", bug_report_url);
6494 /* We do not exit here. Instead we have created a fake input file
6495 called 'help-dummy' which needs to be compiled, and we pass this
6496 on the various sub-processes, along with the --help switch. */
6504 notice ("Target: %s\n", spec_machine);
6505 notice ("Configured with: %s\n", configuration_arguments);
6507 #ifdef THREAD_MODEL_SPEC
6508 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6509 but there's no point in doing all this processing just to get
6510 thread_model back. */
6511 obstack_init (&obstack);
6512 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
6513 obstack_1grow (&obstack, '\0');
6514 thrmod = XOBFINISH (&obstack, const char *);
6516 thrmod = thread_model;
6519 notice ("Thread model: %s\n", thrmod);
6521 /* compiler_version is truncated at the first space when initialized
6522 from version string, so truncate version_string at the first space
6523 before comparing. */
6524 for (n = 0; version_string[n]; n++)
6525 if (version_string[n] == ' ')
6528 if (! strncmp (version_string, compiler_version, n)
6529 && compiler_version[n] == 0)
6530 notice ("gcc version %s %s\n", version_string, pkgversion_string);
6532 notice ("gcc driver version %s %sexecuting gcc version %s\n",
6533 version_string, pkgversion_string, compiler_version);
6539 if (n_infiles == added_libraries)
6540 fatal ("no input files");
6542 /* Make a place to record the compiler output file names
6543 that correspond to the input files. */
6546 i += lang_specific_extra_outfiles;
6547 outfiles = XCNEWVEC (const char *, i);
6549 /* Record which files were specified explicitly as link input. */
6551 explicit_link_files = XCNEWVEC (char, n_infiles);
6554 combine_inputs = true;
6556 combine_inputs = false;
6558 for (i = 0; (int) i < n_infiles; i++)
6560 const char *name = infiles[i].name;
6561 struct compiler *compiler = lookup_compiler (name,
6563 infiles[i].language);
6565 if (compiler && !(compiler->combinable))
6566 combine_inputs = false;
6568 if (lang_n_infiles > 0 && compiler != input_file_compiler
6569 && infiles[i].language && infiles[i].language[0] != '*')
6570 infiles[i].incompiler = compiler;
6574 input_file_compiler = compiler;
6575 infiles[i].incompiler = compiler;
6579 /* Since there is no compiler for this input file, assume it is a
6581 explicit_link_files[i] = 1;
6582 infiles[i].incompiler = NULL;
6584 infiles[i].compiled = false;
6585 infiles[i].preprocessed = false;
6588 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
6589 fatal ("cannot specify -o with -c or -S with multiple files");
6591 if (combine_flag && save_temps_flag)
6593 bool save_combine_inputs = combine_inputs;
6594 /* Must do a separate pre-processing pass for C & Objective-C files, to
6595 obtain individual .i files. */
6597 combine_inputs = false;
6598 for (i = 0; (int) i < n_infiles; i++)
6600 int this_file_error = 0;
6602 input_file_number = i;
6603 set_input (infiles[i].name);
6604 if (infiles[i].incompiler
6605 && (infiles[i].incompiler)->needs_preprocessing)
6606 input_file_compiler = infiles[i].incompiler;
6610 if (input_file_compiler)
6612 if (input_file_compiler->spec[0] == '#')
6614 error ("%s: %s compiler not installed on this system",
6615 input_filename, &input_file_compiler->spec[1]);
6616 this_file_error = 1;
6620 value = do_spec (input_file_compiler->spec);
6621 infiles[i].preprocessed = true;
6622 if (!have_o_argbuf_index)
6623 fatal ("spec '%s' is invalid", input_file_compiler->spec);
6624 infiles[i].name = argbuf[have_o_argbuf_index];
6625 infiles[i].incompiler
6626 = lookup_compiler (infiles[i].name,
6627 strlen (infiles[i].name),
6628 infiles[i].language);
6631 this_file_error = 1;
6635 if (this_file_error)
6637 delete_failure_queue ();
6641 clear_failure_queue ();
6643 combine_inputs = save_combine_inputs;
6646 for (i = 0; (int) i < n_infiles; i++)
6648 int this_file_error = 0;
6650 /* Tell do_spec what to substitute for %i. */
6652 input_file_number = i;
6653 set_input (infiles[i].name);
6655 if (infiles[i].compiled)
6658 /* Use the same thing in %o, unless cp->spec says otherwise. */
6660 outfiles[i] = input_filename;
6662 /* Figure out which compiler from the file's suffix. */
6664 if (! combine_inputs)
6666 = lookup_compiler (infiles[i].name, input_filename_length,
6667 infiles[i].language);
6669 input_file_compiler = infiles[i].incompiler;
6671 if (input_file_compiler)
6673 /* Ok, we found an applicable compiler. Run its spec. */
6675 if (input_file_compiler->spec[0] == '#')
6677 error ("%s: %s compiler not installed on this system",
6678 input_filename, &input_file_compiler->spec[1]);
6679 this_file_error = 1;
6683 value = do_spec (input_file_compiler->spec);
6684 infiles[i].compiled = true;
6686 this_file_error = 1;
6690 /* If this file's name does not contain a recognized suffix,
6691 record it as explicit linker input. */
6694 explicit_link_files[i] = 1;
6696 /* Clear the delete-on-failure queue, deleting the files in it
6697 if this compilation failed. */
6699 if (this_file_error)
6701 delete_failure_queue ();
6704 /* If this compilation succeeded, don't delete those files later. */
6705 clear_failure_queue ();
6708 /* Reset the input file name to the first compile/object file name, for use
6709 with %b in LINK_SPEC. We use the first input file that we can find
6710 a compiler to compile it instead of using infiles.language since for
6711 languages other than C we use aliases that we then lookup later. */
6716 for (i = 0; i < n_infiles ; i++)
6717 if (infiles[i].language && infiles[i].language[0] != '*')
6719 set_input (infiles[i].name);
6724 if (error_count == 0)
6726 /* Make sure INPUT_FILE_NUMBER points to first available open
6728 input_file_number = n_infiles;
6729 if (lang_specific_pre_link ())
6733 /* Determine if there are any linker input files. */
6734 num_linker_inputs = 0;
6735 for (i = 0; (int) i < n_infiles; i++)
6736 if (explicit_link_files[i] || outfiles[i] != NULL)
6737 num_linker_inputs++;
6739 /* Run ld to link all the compiler output files. */
6741 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
6743 int tmp = execution_count;
6745 /* We'll use ld if we can't find collect2. */
6746 if (! strcmp (linker_name_spec, "collect2"))
6748 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
6750 linker_name_spec = "ld";
6752 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6754 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
6755 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
6757 if (print_subprocess_help == 1)
6759 printf (_("\nLinker options\n==============\n\n"));
6760 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6761 " to the linker.\n\n"));
6764 value = do_spec (link_command_spec);
6767 linker_was_run = (tmp != execution_count);
6770 /* If options said don't run linker,
6771 complain about input files to be given to the linker. */
6773 if (! linker_was_run && error_count == 0)
6774 for (i = 0; (int) i < n_infiles; i++)
6775 if (explicit_link_files[i]
6776 && !(infiles[i].language && infiles[i].language[0] == '*'))
6777 error ("%s: linker input file unused because linking not done",
6780 /* Delete some or all of the temporary files we made. */
6783 delete_failure_queue ();
6784 delete_temp_files ();
6786 if (print_help_list)
6788 printf (("\nFor bug reporting instructions, please see:\n"));
6789 printf ("%s\n", bug_report_url);
6792 return (signal_count != 0 ? 2
6793 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6797 /* Find the proper compilation spec for the file name NAME,
6798 whose length is LENGTH. LANGUAGE is the specified language,
6799 or 0 if this file is to be passed to the linker. */
6801 static struct compiler *
6802 lookup_compiler (const char *name, size_t length, const char *language)
6804 struct compiler *cp;
6806 /* If this was specified by the user to be a linker input, indicate that. */
6807 if (language != 0 && language[0] == '*')
6810 /* Otherwise, look for the language, if one is spec'd. */
6813 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6814 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6817 error ("language %s not recognized", language);
6821 /* Look for a suffix. */
6822 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6824 if (/* The suffix `-' matches only the file name `-'. */
6825 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6826 || (strlen (cp->suffix) < length
6827 /* See if the suffix matches the end of NAME. */
6828 && !strcmp (cp->suffix,
6829 name + length - strlen (cp->suffix))
6834 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6835 /* Look again, but case-insensitively this time. */
6837 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6839 if (/* The suffix `-' matches only the file name `-'. */
6840 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6841 || (strlen (cp->suffix) < length
6842 /* See if the suffix matches the end of NAME. */
6843 && ((!strcmp (cp->suffix,
6844 name + length - strlen (cp->suffix))
6845 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6846 && !strcasecmp (cp->suffix,
6847 name + length - strlen (cp->suffix)))
6853 if (cp >= compilers)
6855 if (cp->spec[0] != '@')
6856 /* A non-alias entry: return it. */
6859 /* An alias entry maps a suffix to a language.
6860 Search for the language; pass 0 for NAME and LENGTH
6861 to avoid infinite recursion if language not found. */
6862 return lookup_compiler (NULL, 0, cp->spec + 1);
6868 save_string (const char *s, int len)
6870 char *result = XNEWVEC (char, len + 1);
6872 memcpy (result, s, len);
6878 pfatal_with_name (const char *name)
6880 perror_with_name (name);
6881 delete_temp_files ();
6886 perror_with_name (const char *name)
6888 error ("%s: %s", name, xstrerror (errno));
6891 /* Output an error message and exit. */
6894 fancy_abort (const char *file, int line, const char *func)
6896 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
6899 /* Output an error message and exit. */
6902 fatal_ice (const char *cmsgid, ...)
6906 va_start (ap, cmsgid);
6908 fprintf (stderr, "%s: ", programname);
6909 vfprintf (stderr, _(cmsgid), ap);
6911 fprintf (stderr, "\n");
6912 delete_temp_files ();
6913 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
6917 fatal (const char *cmsgid, ...)
6921 va_start (ap, cmsgid);
6923 fprintf (stderr, "%s: ", programname);
6924 vfprintf (stderr, _(cmsgid), ap);
6926 fprintf (stderr, "\n");
6927 delete_temp_files ();
6931 /* The argument is actually c-format, not gcc-internal-format,
6932 but because functions with identical names are used through
6933 the rest of the compiler with gcc-internal-format, we just
6934 need to hope all users of these functions use the common
6935 subset between c-format and gcc-internal-format. */
6938 error (const char *gmsgid, ...)
6942 va_start (ap, gmsgid);
6943 fprintf (stderr, "%s: ", programname);
6944 vfprintf (stderr, _(gmsgid), ap);
6947 fprintf (stderr, "\n");
6951 notice (const char *cmsgid, ...)
6955 va_start (ap, cmsgid);
6956 vfprintf (stderr, _(cmsgid), ap);
6961 validate_switches_from_spec (const char *spec)
6963 const char *p = spec;
6966 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
6967 /* We have a switch spec. */
6968 p = validate_switches (p + 1);
6972 validate_all_switches (void)
6974 struct compiler *comp;
6975 struct spec_list *spec;
6977 for (comp = compilers; comp->spec; comp++)
6978 validate_switches_from_spec (comp->spec);
6980 /* Look through the linked list of specs read from the specs file. */
6981 for (spec = specs; spec; spec = spec->next)
6982 validate_switches_from_spec (*spec->ptr_spec);
6984 validate_switches_from_spec (link_command_spec);
6987 /* Look at the switch-name that comes after START
6988 and mark as valid all supplied switches that match it. */
6991 validate_switches (const char *start)
6993 const char *p = start;
6997 bool suffix = false;
6998 bool starred = false;
7000 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7009 if (*p == '.' || *p == ',')
7013 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7014 || *p == ',' || *p == '.' || *p == '@')
7019 starred = true, p++;
7025 /* Mark all matching switches as valid. */
7026 for (i = 0; i < n_switches; i++)
7027 if (!strncmp (switches[i].part1, atom, len)
7028 && (starred || switches[i].part1[len] == 0))
7029 switches[i].validated = 1;
7033 if (*p && (p[-1] == '|' || p[-1] == '&'))
7036 if (*p && p[-1] == ':')
7038 while (*p && *p != ';' && *p != '}')
7043 if (*p == '{' || *p == '<')
7044 p = validate_switches (p+1);
7045 else if (p[0] == 'W' && p[1] == '{')
7046 p = validate_switches (p+2);
7053 if (*p && p[-1] == ';')
7067 static struct mdswitchstr *mdswitches;
7068 static int n_mdswitches;
7070 /* Check whether a particular argument was used. The first time we
7071 canonicalize the switches to keep only the ones we care about. */
7074 used_arg (const char *p, int len)
7079 const char *replace;
7084 static struct mswitchstr *mswitches;
7085 static int n_mswitches;
7090 struct mswitchstr *matches;
7094 /* Break multilib_matches into the component strings of string
7095 and replacement string. */
7096 for (q = multilib_matches; *q != '\0'; q++)
7100 matches = alloca ((sizeof (struct mswitchstr)) * cnt);
7102 q = multilib_matches;
7111 fatal ("multilib spec '%s' is invalid", multilib_matches);
7115 matches[i].len = q - matches[i].str;
7117 matches[i].replace = ++q;
7118 while (*q != ';' && *q != '\0')
7121 goto invalid_matches;
7124 matches[i].rep_len = q - matches[i].replace;
7130 /* Now build a list of the replacement string for switches that we care
7131 about. Make sure we allocate at least one entry. This prevents
7132 xmalloc from calling fatal, and prevents us from re-executing this
7135 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7136 for (i = 0; i < n_switches; i++)
7137 if (switches[i].live_cond != SWITCH_IGNORE)
7139 int xlen = strlen (switches[i].part1);
7140 for (j = 0; j < cnt; j++)
7141 if (xlen == matches[j].len
7142 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7144 mswitches[n_mswitches].str = matches[j].replace;
7145 mswitches[n_mswitches].len = matches[j].rep_len;
7146 mswitches[n_mswitches].replace = (char *) 0;
7147 mswitches[n_mswitches].rep_len = 0;
7153 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7154 on the command line nor any options mutually incompatible with
7156 for (i = 0; i < n_mdswitches; i++)
7160 for (q = multilib_options; *q != '\0'; q++)
7166 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7167 || strchr (" /", q[mdswitches[i].len]) == NULL)
7169 while (*q != ' ' && *q != '/' && *q != '\0')
7176 if (*q != ' ' && *q != '\0')
7178 while (*r != ' ' && *r != '\0')
7181 while (*q != ' ' && *q != '/' && *q != '\0')
7184 if (used_arg (r, q - r))
7189 mswitches[n_mswitches].str = mdswitches[i].str;
7190 mswitches[n_mswitches].len = mdswitches[i].len;
7191 mswitches[n_mswitches].replace = (char *) 0;
7192 mswitches[n_mswitches].rep_len = 0;
7205 for (i = 0; i < n_mswitches; i++)
7206 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
7213 default_arg (const char *p, int len)
7217 for (i = 0; i < n_mdswitches; i++)
7218 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
7224 /* Work out the subdirectory to use based on the options. The format of
7225 multilib_select is a list of elements. Each element is a subdirectory
7226 name followed by a list of options followed by a semicolon. The format
7227 of multilib_exclusions is the same, but without the preceding
7228 directory. First gcc will check the exclusions, if none of the options
7229 beginning with an exclamation point are present, and all of the other
7230 options are present, then we will ignore this completely. Passing
7231 that, gcc will consider each multilib_select in turn using the same
7232 rules for matching the options. If a match is found, that subdirectory
7236 set_multilib_dir (void)
7239 unsigned int this_path_len;
7240 const char *this_path, *this_arg;
7241 const char *start, *end;
7243 int ok, ndfltok, first;
7246 start = multilib_defaults;
7247 while (*start == ' ' || *start == '\t')
7249 while (*start != '\0')
7252 while (*start != ' ' && *start != '\t' && *start != '\0')
7254 while (*start == ' ' || *start == '\t')
7262 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
7263 for (start = multilib_defaults; *start != '\0'; start = end + 1)
7265 while (*start == ' ' || *start == '\t')
7271 for (end = start + 1;
7272 *end != ' ' && *end != '\t' && *end != '\0'; end++)
7275 obstack_grow (&multilib_obstack, start, end - start);
7276 obstack_1grow (&multilib_obstack, 0);
7277 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
7278 mdswitches[i++].len = end - start;
7285 p = multilib_exclusions;
7288 /* Ignore newlines. */
7295 /* Check the arguments. */
7302 fatal ("multilib exclusions '%s' is invalid",
7303 multilib_exclusions);
7313 while (*p != ' ' && *p != ';')
7316 goto invalid_exclusions;
7320 if (*this_arg != '!')
7328 ok = used_arg (this_arg, p - this_arg);
7343 p = multilib_select;
7346 /* Ignore newlines. */
7353 /* Get the initial path. */
7360 fatal ("multilib select '%s' is invalid",
7365 this_path_len = p - this_path;
7367 /* Check the arguments. */
7374 goto invalid_select;
7383 while (*p != ' ' && *p != ';')
7386 goto invalid_select;
7390 if (*this_arg != '!')
7398 /* If this is a default argument, we can just ignore it.
7399 This is true even if this_arg begins with '!'. Beginning
7400 with '!' does not mean that this argument is necessarily
7401 inappropriate for this library: it merely means that
7402 there is a more specific library which uses this
7403 argument. If this argument is a default, we need not
7404 consider that more specific library. */
7405 ok = used_arg (this_arg, p - this_arg);
7412 if (default_arg (this_arg, p - this_arg))
7421 if (this_path_len != 1
7422 || this_path[0] != '.')
7424 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
7427 strncpy (new_multilib_dir, this_path, this_path_len);
7428 new_multilib_dir[this_path_len] = '\0';
7429 q = strchr (new_multilib_dir, ':');
7432 multilib_dir = new_multilib_dir;
7439 const char *q = this_path, *end = this_path + this_path_len;
7441 while (q < end && *q != ':')
7445 char *new_multilib_os_dir = XNEWVEC (char, end - q);
7446 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
7447 new_multilib_os_dir[end - q - 1] = '\0';
7448 multilib_os_dir = new_multilib_os_dir;
7456 if (multilib_dir == NULL && multilib_os_dir != NULL
7457 && strcmp (multilib_os_dir, ".") == 0)
7459 free (CONST_CAST (multilib_os_dir));
7460 multilib_os_dir = NULL;
7462 else if (multilib_dir != NULL && multilib_os_dir == NULL)
7463 multilib_os_dir = multilib_dir;
7466 /* Print out the multiple library subdirectory selection
7467 information. This prints out a series of lines. Each line looks
7468 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7469 required. Only the desired options are printed out, the negative
7470 matches. The options are print without a leading dash. There are
7471 no spaces to make it easy to use the information in the shell.
7472 Each subdirectory is printed only once. This assumes the ordering
7473 generated by the genmultilib script. Also, we leave out ones that match
7477 print_multilib_info (void)
7479 const char *p = multilib_select;
7480 const char *last_path = 0, *this_path;
7482 unsigned int last_path_len = 0;
7487 /* Ignore newlines. */
7494 /* Get the initial path. */
7501 fatal ("multilib select '%s' is invalid", multilib_select);
7507 /* When --disable-multilib was used but target defines
7508 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7509 to find multilib_os_dir, so skip them from output. */
7510 if (this_path[0] == '.' && this_path[1] == ':')
7513 /* Check for matches with the multilib_exclusions. We don't bother
7514 with the '!' in either list. If any of the exclusion rules match
7515 all of its options with the select rule, we skip it. */
7517 const char *e = multilib_exclusions;
7518 const char *this_arg;
7523 /* Ignore newlines. */
7530 /* Check the arguments. */
7539 fatal ("multilib exclusion '%s' is invalid",
7540 multilib_exclusions);
7551 while (*e != ' ' && *e != ';')
7554 goto invalid_exclusion;
7562 int len = e - this_arg;
7565 goto invalid_select;
7569 while (*q != ' ' && *q != ';')
7572 goto invalid_select;
7576 if (! strncmp (arg, this_arg,
7577 (len < q - arg) ? q - arg : len)
7578 || default_arg (this_arg, e - this_arg))
7608 /* If this is a duplicate, skip it. */
7609 skip = (last_path != 0
7610 && (unsigned int) (p - this_path) == last_path_len
7611 && ! strncmp (last_path, this_path, last_path_len));
7613 last_path = this_path;
7614 last_path_len = p - this_path;
7617 /* If this directory requires any default arguments, we can skip
7618 it. We will already have printed a directory identical to
7619 this one which does not require that default argument. */
7630 goto invalid_select;
7637 while (*q != ' ' && *q != ';')
7640 goto invalid_select;
7645 && default_arg (arg, q - arg))
7660 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
7671 goto invalid_select;
7679 use_arg = *p != '!';
7684 while (*p != ' ' && *p != ';')
7687 goto invalid_select;
7699 /* If there are extra options, print them now. */
7700 if (multilib_extra && *multilib_extra)
7702 int print_at = TRUE;
7705 for (q = multilib_extra; *q != '\0'; q++)
7726 /* getenv built-in spec function.
7728 Returns the value of the environment variable given by its first
7729 argument, concatenated with the second argument. If the
7730 environment variable is not defined, a fatal error is issued. */
7733 getenv_spec_function (int argc, const char **argv)
7740 value = getenv (argv[0]);
7742 fatal ("environment variable \"%s\" not defined", argv[0]);
7744 return concat (value, argv[1], NULL);
7747 /* if-exists built-in spec function.
7749 Checks to see if the file specified by the absolute pathname in
7750 ARGS exists. Returns that pathname if found.
7752 The usual use for this function is to check for a library file
7753 (whose name has been expanded with %s). */
7756 if_exists_spec_function (int argc, const char **argv)
7758 /* Must have only one argument. */
7759 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7765 /* if-exists-else built-in spec function.
7767 This is like if-exists, but takes an additional argument which
7768 is returned if the first argument does not exist. */
7771 if_exists_else_spec_function (int argc, const char **argv)
7773 /* Must have exactly two arguments. */
7777 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7783 /* replace-outfile built-in spec function.
7785 This looks for the first argument in the outfiles array's name and
7786 replaces it with the second argument. */
7789 replace_outfile_spec_function (int argc, const char **argv)
7792 /* Must have exactly two arguments. */
7796 for (i = 0; i < n_infiles; i++)
7798 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
7799 outfiles[i] = xstrdup (argv[1]);
7804 /* Given two version numbers, compares the two numbers.
7805 A version number must match the regular expression
7806 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7809 compare_version_strings (const char *v1, const char *v2)
7814 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7815 REG_EXTENDED | REG_NOSUB) != 0)
7817 rresult = regexec (&r, v1, 0, NULL, 0);
7818 if (rresult == REG_NOMATCH)
7819 fatal ("invalid version number `%s'", v1);
7820 else if (rresult != 0)
7822 rresult = regexec (&r, v2, 0, NULL, 0);
7823 if (rresult == REG_NOMATCH)
7824 fatal ("invalid version number `%s'", v2);
7825 else if (rresult != 0)
7828 return strverscmp (v1, v2);
7832 /* version_compare built-in spec function.
7834 This takes an argument of the following form:
7836 <comparison-op> <arg1> [<arg2>] <switch> <result>
7838 and produces "result" if the comparison evaluates to true,
7839 and nothing if it doesn't.
7841 The supported <comparison-op> values are:
7843 >= true if switch is a later (or same) version than arg1
7845 < true if switch is an earlier version than arg1
7847 >< true if switch is arg1 or later, and earlier than arg2
7848 <> true if switch is earlier than arg1 or is arg2 or later
7850 If the switch is not present, the condition is false unless
7851 the first character of the <comparison-op> is '!'.
7854 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7855 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7858 version_compare_spec_function (int argc, const char **argv)
7862 const char *switch_value = NULL;
7867 fatal ("too few arguments to %%:version-compare");
7868 if (argv[0][0] == '\0')
7870 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
7872 if (argc != nargs + 3)
7873 fatal ("too many arguments to %%:version-compare");
7875 switch_len = strlen (argv[nargs + 1]);
7876 for (i = 0; i < n_switches; i++)
7877 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
7878 && check_live_switch (i, switch_len))
7879 switch_value = switches[i].part1 + switch_len;
7881 if (switch_value == NULL)
7885 comp1 = compare_version_strings (switch_value, argv[1]);
7887 comp2 = compare_version_strings (switch_value, argv[2]);
7889 comp2 = -1; /* This value unused. */
7892 switch (argv[0][0] << 8 | argv[0][1])
7894 case '>' << 8 | '=':
7895 result = comp1 >= 0;
7897 case '!' << 8 | '<':
7898 result = comp1 >= 0 || switch_value == NULL;
7903 case '!' << 8 | '>':
7904 result = comp1 < 0 || switch_value == NULL;
7906 case '>' << 8 | '<':
7907 result = comp1 >= 0 && comp2 < 0;
7909 case '<' << 8 | '>':
7910 result = comp1 < 0 || comp2 >= 0;
7914 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
7919 return argv[nargs + 2];
7922 /* %:include builtin spec function. This differs from %include in that it
7923 can be nested inside a spec, and thus be conditionalized. It takes
7924 one argument, the filename, and looks for it in the startfile path.
7925 The result is always NULL, i.e. an empty expansion. */
7928 include_spec_function (int argc, const char **argv)
7935 file = find_a_file (&startfile_prefixes, argv[0], R_OK, 0);
7936 read_specs (file ? file : argv[0], FALSE);
7941 /* %:print-asm-header spec function. Print a banner to say that the
7942 following output is from the assembler. */
7945 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
7946 const char **argv ATTRIBUTE_UNUSED)
7948 printf (_("Assembler options\n=================\n\n"));
7949 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));