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 Free Software Foundation,
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 This paragraph is here to try to keep Sun CC from dying.
24 The number of chars here seems crucial!!!! */
26 /* This program is the user interface to the C compiler and possibly to
27 other compilers. It is used because compilation is a complicated procedure
28 which involves running several programs and passing temporary files between
29 them, forwarding the users switches to those programs selectively,
30 and deleting the temporary files at the end.
32 CC recognizes how to compile each input file by suffixes in the file names.
33 Once it knows which kind of compilation to perform, the procedure for
34 compilation is specified by a string called a "spec". */
36 /* A Short Introduction to Adding a Command-Line Option.
38 Before adding a command-line option, consider if it is really
39 necessary. Each additional command-line option adds complexity and
40 is difficult to remove in subsequent versions.
42 In the following, consider adding the command-line argument
45 1. Each command-line option is specified in the specs file. The
46 notation is described below in the comment entitled "The Specs
49 2. In this file, add an entry to "option_map" equating the long
50 `--' argument version and any shorter, single letter version. Read
51 the comments in the declaration of "struct option_map" for an
52 explanation. Do not omit the first `-'.
54 3. Look in the "specs" file to determine which program or option
55 list should be given the argument, e.g., "cc1_options". Add the
56 appropriate syntax for the shorter option version to the
57 corresponding "const char *" entry in this file. Omit the first
58 `-' from the option. For example, use `-bar', rather than `--bar'.
60 4. If the argument takes an argument, e.g., `--baz argument1',
61 modify either DEFAULT_SWITCH_TAKES_ARG or
62 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
65 5. Document the option in this file's display_help(). If the
66 option is passed to a subprogram, modify its corresponding
67 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
70 6. Compile and test. Make sure that your new specs file is being
71 read. For example, use a debugger to investigate the value of
72 "specs_file" in main(). */
76 #include "coretypes.h"
77 #include "multilib.h" /* before tm.h */
80 #if ! defined( SIGCHLD ) && defined( SIGCLD )
81 # define SIGCHLD SIGCLD
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 saying to pass the greatest exit code returned by a sub-process
130 to the calling program. */
131 static int pass_exit_codes;
133 /* Definition of string containing the arguments given to configure. */
134 #include "configargs.h"
136 /* Flag saying to print the directories gcc will search through looking for
137 programs, libraries, etc. */
139 static int print_search_dirs;
141 /* Flag saying to print the full filename of this file
142 as found through our usual search mechanism. */
144 static const char *print_file_name = NULL;
146 /* As print_file_name, but search for executable file. */
148 static const char *print_prog_name = NULL;
150 /* Flag saying to print the relative path we'd use to
151 find libgcc.a given the current compiler flags. */
153 static int print_multi_directory;
155 /* Flag saying to print the relative path we'd use to
156 find OS libraries given the current compiler flags. */
158 static int print_multi_os_directory;
160 /* Flag saying to print the list of subdirectories and
161 compiler flags used to select them in a standard form. */
163 static int print_multi_lib;
165 /* Flag saying to print the command line options understood by gcc and its
168 static int print_help_list;
170 /* Flag indicating whether we should print the command and arguments */
172 static int verbose_flag;
174 /* Flag indicating whether we should ONLY print the command and
175 arguments (like verbose_flag) without executing the command.
176 Displayed arguments are quoted so that the generated command
177 line is suitable for execution. This is intended for use in
178 shell scripts to capture the driver-generated command line. */
179 static int verbose_only_flag;
181 /* Flag indicating to print target specific command line options. */
183 static int target_help_flag;
185 /* Flag indicating whether we should report subprocess execution times
186 (if this is supported by the system - see pexecute.c). */
188 static int report_times;
190 /* Nonzero means place this string before uses of /, so that include
191 and library files can be found in an alternate location. */
193 #ifdef TARGET_SYSTEM_ROOT
194 static const char *target_system_root = TARGET_SYSTEM_ROOT;
196 static const char *target_system_root = 0;
199 /* Nonzero means pass the updated target_system_root to the compiler. */
201 static int target_system_root_changed;
203 /* Nonzero means append this string to target_system_root. */
205 static const char *target_sysroot_suffix = 0;
207 /* Nonzero means append this string to target_system_root for headers. */
209 static const char *target_sysroot_hdrs_suffix = 0;
211 /* Nonzero means write "temp" files in source directory
212 and use the source file's name in them, and don't delete them. */
214 static int save_temps_flag;
216 /* Nonzero means pass multiple source files to the compiler at one time. */
218 static int combine_flag = 0;
220 /* Nonzero means use pipes to communicate between subprocesses.
221 Overridden by either of the above two flags. */
223 static int use_pipes;
225 /* The compiler version. */
227 static const char *compiler_version;
229 /* The target version specified with -V */
231 static const char *const spec_version = DEFAULT_TARGET_VERSION;
233 /* The target machine specified with -b. */
235 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
237 /* Nonzero if cross-compiling.
238 When -b is used, the value comes from the `specs' file. */
241 static const char *cross_compile = "1";
243 static const char *cross_compile = "0";
246 #ifdef MODIFY_TARGET_NAME
248 /* Information on how to alter the target name based on a command-line
249 switch. The only case we support now is simply appending or deleting a
250 string to or from the end of the first part of the configuration name. */
252 static const struct modify_target
254 const char *const sw;
255 const enum add_del {ADD, DELETE} add_del;
256 const char *const str;
258 modify_target[] = MODIFY_TARGET_NAME;
261 /* The number of errors that have occurred; the link phase will not be
262 run if this is nonzero. */
263 static int error_count = 0;
265 /* Greatest exit code of sub-processes that has been encountered up to
267 static int greatest_status = 1;
269 /* This is the obstack which we use to allocate many strings. */
271 static struct obstack obstack;
273 /* This is the obstack to build an environment variable to pass to
274 collect2 that describes all of the relevant switches of what to
275 pass the compiler in building the list of pointers to constructors
278 static struct obstack collect_obstack;
280 /* Forward declaration for prototypes. */
284 static void init_spec (void);
285 static void store_arg (const char *, int, int);
286 static char *load_specs (const char *);
287 static void read_specs (const char *, int);
288 static void set_spec (const char *, const char *);
289 static struct compiler *lookup_compiler (const char *, size_t, const char *);
290 static char *build_search_list (struct path_prefix *, const char *, int);
291 static void putenv_from_prefixes (struct path_prefix *, const char *);
292 static int access_check (const char *, int);
293 static char *find_a_file (struct path_prefix *, const char *, int, int);
294 static void add_prefix (struct path_prefix *, const char *, const char *,
296 static void add_sysrooted_prefix (struct path_prefix *, const char *,
297 const char *, int, int, int);
298 static void translate_options (int *, const char *const **);
299 static char *skip_whitespace (char *);
300 static void delete_if_ordinary (const char *);
301 static void delete_temp_files (void);
302 static void delete_failure_queue (void);
303 static void clear_failure_queue (void);
304 static int check_live_switch (int, int);
305 static const char *handle_braces (const char *);
306 static inline bool input_suffix_matches (const char *, const char *);
307 static inline bool switch_matches (const char *, const char *, int);
308 static inline void mark_matching_switches (const char *, const char *, int);
309 static inline void process_marked_switches (void);
310 static const char *process_brace_body (const char *, const char *, const char *, int, int);
311 static const struct spec_function *lookup_spec_function (const char *);
312 static const char *eval_spec_function (const char *, const char *);
313 static const char *handle_spec_function (const char *);
314 static char *save_string (const char *, int);
315 static void set_collect_gcc_options (void);
316 static void do_spec_path (struct prefix_list *, const char *, int, int, int, const char *, const char *);
317 static int do_spec_1 (const char *, int, const char *);
318 static int do_spec_2 (const char *);
319 static void do_option_spec (const char *, const char *);
320 static void do_self_spec (const char *);
321 static const char *find_file (const char *);
322 static int is_directory (const char *, const char *, int);
323 static const char *validate_switches (const char *);
324 static void validate_all_switches (void);
325 static inline void validate_switches_from_spec (const char *);
326 static void give_switch (int, int);
327 static int used_arg (const char *, int);
328 static int default_arg (const char *, int);
329 static void set_multilib_dir (void);
330 static void print_multilib_info (void);
331 static void perror_with_name (const char *);
332 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
333 static void display_help (void);
334 static void add_preprocessor_option (const char *, int);
335 static void add_assembler_option (const char *, int);
336 static void add_linker_option (const char *, int);
337 static void process_command (int, const char **);
338 static int execute (void);
339 static void alloc_args (void);
340 static void clear_args (void);
341 static void fatal_error (int);
342 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
343 static void init_gcc_specs (struct obstack *, const char *, const char *,
346 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
347 static const char *convert_filename (const char *, int, int);
350 static const char *if_exists_spec_function (int, const char **);
351 static const char *if_exists_else_spec_function (int, const char **);
352 static const char *replace_outfile_spec_function (int, const char **);
353 static const char *version_compare_spec_function (int, const char **);
355 /* The Specs Language
357 Specs are strings containing lines, each of which (if not blank)
358 is made up of a program name, and arguments separated by spaces.
359 The program name must be exact and start from root, since no path
360 is searched and it is unreliable to depend on the current working directory.
361 Redirection of input or output is not supported; the subprograms must
362 accept filenames saying what files to read and write.
364 In addition, the specs can contain %-sequences to substitute variable text
365 or for conditional text. Here is a table of all defined %-sequences.
366 Note that spaces are not generated automatically around the results of
367 expanding these sequences; therefore, you can concatenate them together
368 or with constant text in a single argument.
370 %% substitute one % into the program name or argument.
371 %i substitute the name of the input file being processed.
372 %b substitute the basename of the input file being processed.
373 This is the substring up to (and not including) the last period
374 and not including the directory.
375 %B same as %b, but include the file suffix (text after the last period).
377 substitute a file name that has suffix SUFFIX and is chosen
378 once per compilation, and mark the argument a la %d. To reduce
379 exposure to denial-of-service attacks, the file name is now
380 chosen in a way that is hard to predict even when previously
381 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
382 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
383 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
384 had been pre-processed. Previously, %g was simply substituted
385 with a file name chosen once per compilation, without regard
386 to any appended suffix (which was therefore treated just like
387 ordinary text), making such attacks more likely to succeed.
389 like %g, but if -pipe is in effect, expands simply to "-".
391 like %g, but if -pipe is in effect, expands to nothing. (We have both
392 %| and %m to accommodate differences between system assemblers; see
393 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
395 like %g, but generates a new temporary file name even if %uSUFFIX
398 substitutes the last file name generated with %uSUFFIX, generating a
399 new one if there is no such last file name. In the absence of any
400 %uSUFFIX, this is just like %gSUFFIX, except they don't share
401 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
402 would involve the generation of two distinct file names, one
403 for each `%g.s' and another for each `%U.s'. Previously, %U was
404 simply substituted with a file name chosen for the previous %u,
405 without regard to any appended suffix.
407 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
408 writable, and if save-temps is off; otherwise, substitute the name
409 of a temporary file, just like %u. This temporary file is not
410 meant for communication between processes, but rather as a junk
413 substitutes .SUFFIX for the suffixes of a matched switch's args when
414 it is subsequently output with %*. SUFFIX is terminated by the next
416 %d marks the argument containing or following the %d as a
417 temporary file name, so that that file will be deleted if CC exits
418 successfully. Unlike %g, this contributes no text to the argument.
419 %w marks the argument containing or following the %w as the
420 "output file" of this compilation. This puts the argument
421 into the sequence of arguments that %o will substitute later.
422 %V indicates that this compilation produces no "output file".
424 like %{...} but mark last argument supplied within
425 as a file to be deleted on failure.
426 %o substitutes the names of all the output files, with spaces
427 automatically placed around them. You should write spaces
428 around the %o as well or the results are undefined.
429 %o is for use in the specs for running the linker.
430 Input files whose names have no recognized suffix are not compiled
431 at all, but they are included among the output files, so they will
433 %O substitutes the suffix for object files. Note that this is
434 handled specially when it immediately follows %g, %u, or %U
435 (with or without a suffix argument) because of the need for
436 those to form complete file names. The handling is such that
437 %O is treated exactly as if it had already been substituted,
438 except that %g, %u, and %U do not currently support additional
439 SUFFIX characters following %O as they would following, for
441 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
442 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
443 and -B options) as necessary.
444 %s current argument is the name of a library or startup file of some sort.
445 Search for that file in a standard list of directories
446 and substitute the full name found.
447 %eSTR Print STR as an error message. STR is terminated by a newline.
448 Use this when inconsistent options are detected.
449 %nSTR Print STR as a notice. STR is terminated by a newline.
450 %x{OPTION} Accumulate an option for %X.
451 %X Output the accumulated linker options specified by compilations.
452 %Y Output the accumulated assembler options specified by compilations.
453 %Z Output the accumulated preprocessor options specified by compilations.
454 %a process ASM_SPEC as a spec.
455 This allows config.h to specify part of the spec for running as.
456 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
457 used here. This can be used to run a post-processor after the
458 assembler has done its job.
459 %D Dump out a -L option for each directory in startfile_prefixes.
460 If multilib_dir is set, extra entries are generated with it affixed.
461 %l process LINK_SPEC as a spec.
462 %L process LIB_SPEC as a spec.
463 %G process LIBGCC_SPEC as a spec.
464 %R Output the concatenation of target_system_root and
465 target_sysroot_suffix.
466 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
467 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
468 %C process CPP_SPEC as a spec.
469 %1 process CC1_SPEC as a spec.
470 %2 process CC1PLUS_SPEC as a spec.
471 %* substitute the variable part of a matched option. (See below.)
472 Note that each comma in the substituted string is replaced by
474 %<S remove all occurrences of -S from the command line.
475 Note - this command is position dependent. % commands in the
476 spec string before this one will see -S, % commands in the
477 spec string after this one will not.
478 %<S* remove all occurrences of all switches beginning with -S from the
481 Call the named function FUNCTION, passing it ARGS. ARGS is
482 first processed as a nested spec string, then split into an
483 argument vector in the usual fashion. The function returns
484 a string which is processed as if it had appeared literally
485 as part of the current spec.
486 %{S} substitutes the -S switch, if that switch was given to CC.
487 If that switch was not specified, this substitutes nothing.
488 Here S is a metasyntactic variable.
489 %{S*} substitutes all the switches specified to CC whose names start
490 with -S. This is used for -o, -I, etc; switches that take
491 arguments. CC considers `-o foo' as being one switch whose
492 name starts with `o'. %{o*} would substitute this text,
493 including the space; thus, two arguments would be generated.
494 %{S*&T*} likewise, but preserve order of S and T options (the order
495 of S and T in the spec is not significant). Can be any number
496 of ampersand-separated variables; for each the wild card is
497 optional. Useful for CPP as %{D*&U*&A*}.
499 %{S:X} substitutes X, if the -S switch was given to CC.
500 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
501 %{S*:X} substitutes X if one or more switches whose names start
502 with -S was given to CC. Normally X is substituted only
503 once, no matter how many such switches appeared. However,
504 if %* appears somewhere in X, then X will be substituted
505 once for each matching switch, with the %* replaced by the
506 part of that switch that matched the '*'.
507 %{.S:X} substitutes X, if processing a file with suffix S.
508 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
510 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
511 combined with !, ., and * as above binding stronger than the OR.
512 If %* appears in X, all of the alternatives must be starred, and
513 only the first matching alternative is substituted.
514 %{S:X; if S was given to CC, substitutes X;
515 T:Y; else if T was given to CC, substitutes Y;
516 :D} else substitutes D. There can be as many clauses as you need.
517 This may be combined with ., !, |, and * as above.
519 %(Spec) processes a specification defined in a specs file as *Spec:
520 %[Spec] as above, but put __ around -D arguments
522 The conditional text X in a %{S:X} or similar construct may contain
523 other nested % constructs or spaces, or even newlines. They are
524 processed as usual, as described above. Trailing white space in X is
525 ignored. White space may also appear anywhere on the left side of the
526 colon in these constructs, except between . or * and the corresponding
529 The -O, -f, -m, and -W switches are handled specifically in these
530 constructs. If another value of -O or the negated form of a -f, -m, or
531 -W switch is found later in the command line, the earlier switch
532 value is ignored, except with {S*} where S is just one letter; this
533 passes all matching options.
535 The character | at the beginning of the predicate text is used to indicate
536 that a command should be piped to the following command, but only if -pipe
539 Note that it is built into CC which switches take arguments and which
540 do not. You might think it would be useful to generalize this to
541 allow each compiler's spec to say which switches take arguments. But
542 this cannot be done in a consistent fashion. CC cannot even decide
543 which input files have been specified without knowing which switches
544 take arguments, and it must know which input files to compile in order
545 to tell which compilers to run.
547 CC also knows implicitly that arguments starting in `-l' are to be
548 treated as compiler output files, and passed to the linker in their
549 proper position among the other output files. */
551 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
553 /* config.h can define ASM_SPEC to provide extra args to the assembler
554 or extra switch-translations. */
559 /* config.h can define ASM_FINAL_SPEC to run a post processor after
560 the assembler has run. */
561 #ifndef ASM_FINAL_SPEC
562 #define ASM_FINAL_SPEC ""
565 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
566 or extra switch-translations. */
571 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
572 or extra switch-translations. */
577 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
578 or extra switch-translations. */
580 #define CC1PLUS_SPEC ""
583 /* config.h can define LINK_SPEC to provide extra args to the linker
584 or extra switch-translations. */
589 /* config.h can define LIB_SPEC to override the default libraries. */
591 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
596 /* XXX: valid only for GNU ld */
597 /* XXX: should exactly match hooks provided by libmudflap.a */
598 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
599 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
600 --wrap=mmap --wrap=munmap --wrap=alloca\
601 } %{fmudflapth: --wrap=pthread_create --wrap=pthread_join --wrap=pthread_exit\
602 }} %{fmudflap|fmudflapth: --wrap=main}"
605 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
608 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
611 #if defined(REAL_LIBGCC_SPEC)
612 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
613 #elif defined(LINK_LIBGCC_SPECIAL_1)
614 /* Have gcc do the search for libgcc.a. */
615 #define LIBGCC_SPEC "libgcc.a%s"
617 #define LIBGCC_SPEC "-lgcc"
621 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
622 #ifndef STARTFILE_SPEC
623 #define STARTFILE_SPEC \
624 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
627 /* config.h can define SWITCHES_NEED_SPACES to control which options
628 require spaces between the option and the argument. */
629 #ifndef SWITCHES_NEED_SPACES
630 #define SWITCHES_NEED_SPACES ""
633 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
635 #define ENDFILE_SPEC ""
639 #define LINKER_NAME "collect2"
642 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
644 #ifndef ASM_DEBUG_SPEC
645 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
646 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
647 # define ASM_DEBUG_SPEC \
648 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
649 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
650 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
652 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
653 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
655 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
656 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
660 #ifndef ASM_DEBUG_SPEC
661 # define ASM_DEBUG_SPEC ""
664 /* Here is the spec for running the linker, after compiling all files. */
666 /* This is overridable by the target in case they need to specify the
667 -lgcc and -lc order specially, yet not require them to override all
668 of LINK_COMMAND_SPEC. */
669 #ifndef LINK_GCC_C_SEQUENCE_SPEC
670 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
673 #ifndef LINK_SSP_SPEC
674 #ifdef TARGET_LIBC_PROVIDES_SSP
675 #define LINK_SSP_SPEC "%{fstack-protector:}"
677 #define LINK_SSP_SPEC "%{fstack-protector:-lssp_nonshared -lssp }"
681 #ifndef LINK_PIE_SPEC
683 #define LINK_PIE_SPEC "%{pie:-pie} "
685 #define LINK_PIE_SPEC "%{pie:} "
689 /* -u* was put back because both BSD and SysV seem to support it. */
690 /* %{static:} simply prevents an error message if the target machine
691 doesn't handle -static. */
692 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
693 scripts which exist in user specified directories, or in standard
695 #ifndef LINK_COMMAND_SPEC
696 #define LINK_COMMAND_SPEC "\
697 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
698 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
699 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
700 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o %(mflib)\
701 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
702 %{!nostdlib:%{!nodefaultlibs:%(link_ssp)%(link_gcc_c_sequence)}}\
703 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
706 #ifndef LINK_LIBGCC_SPEC
707 /* Generate -L options for startfile prefix list. */
708 # define LINK_LIBGCC_SPEC "%D"
711 #ifndef STARTFILE_PREFIX_SPEC
712 # define STARTFILE_PREFIX_SPEC ""
716 # define SYSROOT_SPEC "--sysroot=%R"
719 #ifndef SYSROOT_SUFFIX_SPEC
720 # define SYSROOT_SUFFIX_SPEC ""
723 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
724 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
727 static const char *asm_debug;
728 static const char *cpp_spec = CPP_SPEC;
729 static const char *cc1_spec = CC1_SPEC;
730 static const char *cc1plus_spec = CC1PLUS_SPEC;
731 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
732 static const char *link_ssp_spec = LINK_SSP_SPEC;
733 static const char *asm_spec = ASM_SPEC;
734 static const char *asm_final_spec = ASM_FINAL_SPEC;
735 static const char *link_spec = LINK_SPEC;
736 static const char *lib_spec = LIB_SPEC;
737 static const char *mfwrap_spec = MFWRAP_SPEC;
738 static const char *mflib_spec = MFLIB_SPEC;
739 static const char *libgcc_spec = LIBGCC_SPEC;
740 static const char *endfile_spec = ENDFILE_SPEC;
741 static const char *startfile_spec = STARTFILE_SPEC;
742 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
743 static const char *linker_name_spec = LINKER_NAME;
744 static const char *link_command_spec = LINK_COMMAND_SPEC;
745 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
746 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
747 static const char *sysroot_spec = SYSROOT_SPEC;
748 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
749 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
751 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
752 There should be no need to override these in target dependent files,
753 but we need to copy them to the specs file so that newer versions
754 of the GCC driver can correctly drive older tool chains with the
755 appropriate -B options. */
757 /* When cpplib handles traditional preprocessing, get rid of this, and
758 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
759 that we default the front end language better. */
760 static const char *trad_capable_cpp =
761 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
763 /* We don't wrap .d files in %W{} since a missing .d file, and
764 therefore no dependency entry, confuses make into thinking a .o
765 file that happens to exist is up-to-date. */
766 static const char *cpp_unique_options =
767 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
768 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
769 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
770 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
771 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
772 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
773 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
774 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
775 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
778 /* This contains cpp options which are common with cc1_options and are passed
779 only when preprocessing only to avoid duplication. We pass the cc1 spec
780 options to the preprocessor so that it the cc1 spec may manipulate
781 options used to set target flags. Those special target flags settings may
782 in turn cause preprocessor symbols to be defined specially. */
783 static const char *cpp_options =
784 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
785 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
786 %{undef} %{save-temps:-fpch-preprocess}";
788 /* This contains cpp options which are not passed when the preprocessor
789 output will be used by another program. */
790 static const char *cpp_debug_options = "%{d*}";
792 /* NB: This is shared amongst all front-ends. */
793 static const char *cc1_options =
794 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
795 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
796 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
797 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
798 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
799 %{Qn:-fno-ident} %{--help:--help}\
800 %{--target-help:--target-help}\
801 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
802 %{fsyntax-only:-o %j} %{-param*}\
803 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
804 %{coverage:-fprofile-arcs -ftest-coverage}";
806 static const char *asm_options =
807 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
809 static const char *invoke_as =
810 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
811 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
813 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
816 /* Some compilers have limits on line lengths, and the multilib_select
817 and/or multilib_matches strings can be very long, so we build them at
819 static struct obstack multilib_obstack;
820 static const char *multilib_select;
821 static const char *multilib_matches;
822 static const char *multilib_defaults;
823 static const char *multilib_exclusions;
825 /* Check whether a particular argument is a default argument. */
827 #ifndef MULTILIB_DEFAULTS
828 #define MULTILIB_DEFAULTS { "" }
831 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
833 #ifndef DRIVER_SELF_SPECS
834 #define DRIVER_SELF_SPECS ""
837 static const char *const driver_self_specs[] = { DRIVER_SELF_SPECS };
839 #ifndef OPTION_DEFAULT_SPECS
840 #define OPTION_DEFAULT_SPECS { "", "" }
849 static const struct default_spec
850 option_default_specs[] = { OPTION_DEFAULT_SPECS };
854 struct user_specs *next;
855 const char *filename;
858 static struct user_specs *user_specs_head, *user_specs_tail;
860 #ifndef SWITCH_TAKES_ARG
861 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
864 #ifndef WORD_SWITCH_TAKES_ARG
865 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
868 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
869 /* This defines which switches stop a full compilation. */
870 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
871 ((CHAR) == 'c' || (CHAR) == 'S')
873 #ifndef SWITCH_CURTAILS_COMPILATION
874 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
875 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
879 /* Record the mapping from file suffixes for compilation specs. */
883 const char *suffix; /* Use this compiler for input files
884 whose names end in this suffix. */
886 const char *spec; /* To use this compiler, run this spec. */
888 const char *cpp_spec; /* If non-NULL, substitute this spec
889 for `%C', rather than the usual
891 const int combinable; /* If nonzero, compiler can deal with
892 multiple source files at once (IMA). */
893 const int needs_preprocessing; /* If nonzero, source files need to
894 be run through a preprocessor. */
897 /* Pointer to a vector of `struct compiler' that gives the spec for
898 compiling a file, based on its suffix.
899 A file that does not end in any of these suffixes will be passed
900 unchanged to the loader and nothing else will be done to it.
902 An entry containing two 0s is used to terminate the vector.
904 If multiple entries match a file, the last matching one is used. */
906 static struct compiler *compilers;
908 /* Number of entries in `compilers', not counting the null terminator. */
910 static int n_compilers;
912 /* The default list of file name suffixes and their compilation specs. */
914 static const struct compiler default_compilers[] =
916 /* Add lists of suffixes of known languages here. If those languages
917 were not present when we built the driver, we will hit these copies
918 and be given a more meaningful error than "file not used since
919 linking is not done". */
920 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
921 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
922 {".mii", "#Objective-C++", 0, 0, 0},
923 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
924 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
925 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
926 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
927 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
928 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
929 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
930 {".FPP", "#Fortran", 0, 0, 0},
931 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
932 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
933 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
934 {".r", "#Ratfor", 0, 0, 0},
935 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
936 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
937 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
938 /* Next come the entries for C. */
939 {".c", "@c", 0, 1, 1},
941 /* cc1 has an integrated ISO C preprocessor. We should invoke the
942 external preprocessor if -save-temps is given. */
943 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
945 %{traditional|ftraditional:\
946 %eGNU C no longer supports -traditional without -E}\
948 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
949 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
950 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
952 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
953 cc1 %(cpp_unique_options) %(cc1_options)}}}\
954 %{!fsyntax-only:%(invoke_as)}} \
956 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
957 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
958 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
959 cc1 %(cpp_unique_options) %(cc1_options)}}\
960 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
962 "%{!E:%e-E or -x required when input is from standard input}\
963 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
964 {".h", "@c-header", 0, 0, 0},
966 /* cc1 has an integrated ISO C preprocessor. We should invoke the
967 external preprocessor if -save-temps is given. */
968 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
970 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
971 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
972 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
974 -o %g.s %{!o*:--output-pch=%i.gch}\
975 %W{o*:--output-pch=%*}%V}\
976 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
977 cc1 %(cpp_unique_options) %(cc1_options)\
978 -o %g.s %{!o*:--output-pch=%i.gch}\
979 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
980 {".i", "@cpp-output", 0, 1, 0},
982 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
983 {".s", "@assembler", 0, 1, 0},
985 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
986 {".S", "@assembler-with-cpp", 0, 1, 0},
987 {"@assembler-with-cpp",
988 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
989 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
990 %{E|M|MM:%(cpp_debug_options)}\
991 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
992 as %(asm_debug) %(asm_options) %|.s %A }}}}"
994 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
995 %{E|M|MM:%(cpp_debug_options)}\
996 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
997 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1002 /* Mark end of table. */
1006 /* Number of elements in default_compilers, not counting the terminator. */
1008 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1010 /* A vector of options to give to the linker.
1011 These options are accumulated by %x,
1012 and substituted into the linker command with %X. */
1013 static int n_linker_options;
1014 static char **linker_options;
1016 /* A vector of options to give to the assembler.
1017 These options are accumulated by -Wa,
1018 and substituted into the assembler command with %Y. */
1019 static int n_assembler_options;
1020 static char **assembler_options;
1022 /* A vector of options to give to the preprocessor.
1023 These options are accumulated by -Wp,
1024 and substituted into the preprocessor command with %Z. */
1025 static int n_preprocessor_options;
1026 static char **preprocessor_options;
1028 /* Define how to map long options into short ones. */
1030 /* This structure describes one mapping. */
1033 /* The long option's name. */
1034 const char *const name;
1035 /* The equivalent short option. */
1036 const char *const equivalent;
1037 /* Argument info. A string of flag chars; NULL equals no options.
1038 a => argument required.
1039 o => argument optional.
1040 j => join argument to equivalent, making one word.
1041 * => require other text after NAME as an argument. */
1042 const char *const arg_info;
1045 /* This is the table of mappings. Mappings are tried sequentially
1046 for each option encountered; the first one that matches, wins. */
1048 static const struct option_map option_map[] =
1050 {"--all-warnings", "-Wall", 0},
1051 {"--ansi", "-ansi", 0},
1052 {"--assemble", "-S", 0},
1053 {"--assert", "-A", "a"},
1054 {"--classpath", "-fclasspath=", "aj"},
1055 {"--bootclasspath", "-fbootclasspath=", "aj"},
1056 {"--CLASSPATH", "-fclasspath=", "aj"},
1057 {"--combine", "-combine", 0},
1058 {"--comments", "-C", 0},
1059 {"--comments-in-macros", "-CC", 0},
1060 {"--compile", "-c", 0},
1061 {"--debug", "-g", "oj"},
1062 {"--define-macro", "-D", "aj"},
1063 {"--dependencies", "-M", 0},
1064 {"--dump", "-d", "a"},
1065 {"--dumpbase", "-dumpbase", "a"},
1066 {"--encoding", "-fencoding=", "aj"},
1067 {"--entry", "-e", 0},
1068 {"--extra-warnings", "-W", 0},
1069 {"--extdirs", "-fextdirs=", "aj"},
1070 {"--for-assembler", "-Wa", "a"},
1071 {"--for-linker", "-Xlinker", "a"},
1072 {"--force-link", "-u", "a"},
1073 {"--coverage", "-coverage", 0},
1074 {"--imacros", "-imacros", "a"},
1075 {"--include", "-include", "a"},
1076 {"--include-barrier", "-I-", 0},
1077 {"--include-directory", "-I", "aj"},
1078 {"--include-directory-after", "-idirafter", "a"},
1079 {"--include-prefix", "-iprefix", "a"},
1080 {"--include-with-prefix", "-iwithprefix", "a"},
1081 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1082 {"--include-with-prefix-after", "-iwithprefix", "a"},
1083 {"--language", "-x", "a"},
1084 {"--library-directory", "-L", "a"},
1085 {"--machine", "-m", "aj"},
1086 {"--machine-", "-m", "*j"},
1087 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1088 {"--no-line-commands", "-P", 0},
1089 {"--no-precompiled-includes", "-noprecomp", 0},
1090 {"--no-standard-includes", "-nostdinc", 0},
1091 {"--no-standard-libraries", "-nostdlib", 0},
1092 {"--no-warnings", "-w", 0},
1093 {"--optimize", "-O", "oj"},
1094 {"--output", "-o", "a"},
1095 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1096 {"--param", "--param", "a"},
1097 {"--pass-exit-codes", "-pass-exit-codes", 0},
1098 {"--pedantic", "-pedantic", 0},
1099 {"--pedantic-errors", "-pedantic-errors", 0},
1100 {"--pie", "-pie", 0},
1101 {"--pipe", "-pipe", 0},
1102 {"--prefix", "-B", "a"},
1103 {"--preprocess", "-E", 0},
1104 {"--print-search-dirs", "-print-search-dirs", 0},
1105 {"--print-file-name", "-print-file-name=", "aj"},
1106 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1107 {"--print-missing-file-dependencies", "-MG", 0},
1108 {"--print-multi-lib", "-print-multi-lib", 0},
1109 {"--print-multi-directory", "-print-multi-directory", 0},
1110 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1111 {"--print-prog-name", "-print-prog-name=", "aj"},
1112 {"--profile", "-p", 0},
1113 {"--profile-blocks", "-a", 0},
1114 {"--quiet", "-q", 0},
1115 {"--resource", "-fcompile-resource=", "aj"},
1116 {"--save-temps", "-save-temps", 0},
1117 {"--shared", "-shared", 0},
1118 {"--silent", "-q", 0},
1119 {"--specs", "-specs=", "aj"},
1120 {"--static", "-static", 0},
1121 {"--std", "-std=", "aj"},
1122 {"--symbolic", "-symbolic", 0},
1123 {"--time", "-time", 0},
1124 {"--trace-includes", "-H", 0},
1125 {"--traditional", "-traditional", 0},
1126 {"--traditional-cpp", "-traditional-cpp", 0},
1127 {"--trigraphs", "-trigraphs", 0},
1128 {"--undefine-macro", "-U", "aj"},
1129 {"--user-dependencies", "-MM", 0},
1130 {"--verbose", "-v", 0},
1131 {"--warn-", "-W", "*j"},
1132 {"--write-dependencies", "-MD", 0},
1133 {"--write-user-dependencies", "-MMD", 0},
1138 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1139 static const struct {
1140 const char *const option_found;
1141 const char *const replacements;
1142 } target_option_translations[] =
1144 TARGET_OPTION_TRANSLATE_TABLE,
1149 /* Translate the options described by *ARGCP and *ARGVP.
1150 Make a new vector and store it back in *ARGVP,
1151 and store its length in *ARGVC. */
1154 translate_options (int *argcp, const char *const **argvp)
1158 const char *const *argv = *argvp;
1159 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1160 const char **newv = xmalloc (newvsize);
1164 newv[newindex++] = argv[i++];
1168 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1172 target_option_translations[tott_idx].option_found;
1175 if (strcmp (target_option_translations[tott_idx].option_found,
1182 for (sp = target_option_translations[tott_idx].replacements;
1189 newvsize += spaces * sizeof (const char *);
1190 newv = xrealloc (newv, newvsize);
1192 sp = target_option_translations[tott_idx].replacements;
1201 newv[newindex++] = np;
1202 while (*np != ' ' && *np)
1213 if (target_option_translations[tott_idx].option_found)
1217 /* Translate -- options. */
1218 if (argv[i][0] == '-' && argv[i][1] == '-')
1221 /* Find a mapping that applies to this option. */
1222 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1224 size_t optlen = strlen (option_map[j].name);
1225 size_t arglen = strlen (argv[i]);
1226 size_t complen = arglen > optlen ? optlen : arglen;
1227 const char *arginfo = option_map[j].arg_info;
1232 if (!strncmp (argv[i], option_map[j].name, complen))
1234 const char *arg = 0;
1236 if (arglen < optlen)
1239 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1240 if (strlen (option_map[k].name) >= arglen
1241 && !strncmp (argv[i], option_map[k].name, arglen))
1243 error ("ambiguous abbreviation %s", argv[i]);
1247 if (k != ARRAY_SIZE (option_map))
1251 if (arglen > optlen)
1253 /* If the option has an argument, accept that. */
1254 if (argv[i][optlen] == '=')
1255 arg = argv[i] + optlen + 1;
1257 /* If this mapping requires extra text at end of name,
1258 accept that as "argument". */
1259 else if (strchr (arginfo, '*') != 0)
1260 arg = argv[i] + optlen;
1262 /* Otherwise, extra text at end means mismatch.
1263 Try other mappings. */
1268 else if (strchr (arginfo, '*') != 0)
1270 error ("incomplete '%s' option", option_map[j].name);
1274 /* Handle arguments. */
1275 if (strchr (arginfo, 'a') != 0)
1281 error ("missing argument to '%s' option",
1282 option_map[j].name);
1289 else if (strchr (arginfo, '*') != 0)
1291 else if (strchr (arginfo, 'o') == 0)
1294 error ("extraneous argument to '%s' option",
1295 option_map[j].name);
1299 /* Store the translation as one argv elt or as two. */
1300 if (arg != 0 && strchr (arginfo, 'j') != 0)
1301 newv[newindex++] = concat (option_map[j].equivalent, arg,
1305 newv[newindex++] = option_map[j].equivalent;
1306 newv[newindex++] = arg;
1309 newv[newindex++] = option_map[j].equivalent;
1317 /* Handle old-fashioned options--just copy them through,
1318 with their arguments. */
1319 else if (argv[i][0] == '-')
1321 const char *p = argv[i] + 1;
1325 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1326 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1327 else if (WORD_SWITCH_TAKES_ARG (p))
1328 nskip += WORD_SWITCH_TAKES_ARG (p);
1329 else if ((c == 'B' || c == 'b' || c == 'x')
1332 else if (! strcmp (p, "Xlinker"))
1334 else if (! strcmp (p, "Xpreprocessor"))
1336 else if (! strcmp (p, "Xassembler"))
1339 /* Watch out for an option at the end of the command line that
1340 is missing arguments, and avoid skipping past the end of the
1342 if (nskip + i > argc)
1347 newv[newindex++] = argv[i++];
1352 /* Ordinary operands, or +e options. */
1353 newv[newindex++] = argv[i++];
1363 skip_whitespace (char *p)
1367 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1368 be considered whitespace. */
1369 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1371 else if (*p == '\n' || *p == ' ' || *p == '\t')
1385 /* Structures to keep track of prefixes to try when looking for files. */
1389 const char *prefix; /* String to prepend to the path. */
1390 struct prefix_list *next; /* Next in linked list. */
1391 int require_machine_suffix; /* Don't use without machine_suffix. */
1392 /* 2 means try both machine_suffix and just_machine_suffix. */
1393 int priority; /* Sort key - priority within list. */
1394 int os_multilib; /* 1 if OS multilib scheme should be used,
1395 0 for GCC multilib scheme. */
1400 struct prefix_list *plist; /* List of prefixes to try */
1401 int max_len; /* Max length of a prefix in PLIST */
1402 const char *name; /* Name of this list (used in config stuff) */
1405 /* List of prefixes to try when looking for executables. */
1407 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1409 /* List of prefixes to try when looking for startup (crt0) files. */
1411 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1413 /* List of prefixes to try when looking for include files. */
1415 static struct path_prefix include_prefixes = { 0, 0, "include" };
1417 /* Suffix to attach to directories searched for commands.
1418 This looks like `MACHINE/VERSION/'. */
1420 static const char *machine_suffix = 0;
1422 /* Suffix to attach to directories searched for commands.
1423 This is just `MACHINE/'. */
1425 static const char *just_machine_suffix = 0;
1427 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1429 static const char *gcc_exec_prefix;
1431 /* Adjusted value of standard_libexec_prefix. */
1433 static const char *gcc_libexec_prefix;
1435 /* Default prefixes to attach to command names. */
1437 #ifndef STANDARD_STARTFILE_PREFIX_1
1438 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1440 #ifndef STANDARD_STARTFILE_PREFIX_2
1441 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1444 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1445 #undef MD_EXEC_PREFIX
1446 #undef MD_STARTFILE_PREFIX
1447 #undef MD_STARTFILE_PREFIX_1
1450 /* If no prefixes defined, use the null string, which will disable them. */
1451 #ifndef MD_EXEC_PREFIX
1452 #define MD_EXEC_PREFIX ""
1454 #ifndef MD_STARTFILE_PREFIX
1455 #define MD_STARTFILE_PREFIX ""
1457 #ifndef MD_STARTFILE_PREFIX_1
1458 #define MD_STARTFILE_PREFIX_1 ""
1461 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1462 static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
1463 static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
1464 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1466 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1467 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1468 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1469 static const char *const standard_startfile_prefix_1
1470 = STANDARD_STARTFILE_PREFIX_1;
1471 static const char *const standard_startfile_prefix_2
1472 = STANDARD_STARTFILE_PREFIX_2;
1474 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1475 static const char *tooldir_prefix;
1477 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1479 static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1481 /* Subdirectory to use for locating libraries. Set by
1482 set_multilib_dir based on the compilation options. */
1484 static const char *multilib_dir;
1486 /* Subdirectory to use for locating libraries in OS conventions. Set by
1487 set_multilib_dir based on the compilation options. */
1489 static const char *multilib_os_dir;
1491 /* Structure to keep track of the specs that have been defined so far.
1492 These are accessed using %(specname) or %[specname] in a compiler
1497 /* The following 2 fields must be first */
1498 /* to allow EXTRA_SPECS to be initialized */
1499 const char *name; /* name of the spec. */
1500 const char *ptr; /* available ptr if no static pointer */
1502 /* The following fields are not initialized */
1503 /* by EXTRA_SPECS */
1504 const char **ptr_spec; /* pointer to the spec itself. */
1505 struct spec_list *next; /* Next spec in linked list. */
1506 int name_len; /* length of the name */
1507 int alloc_p; /* whether string was allocated */
1510 #define INIT_STATIC_SPEC(NAME,PTR) \
1511 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1513 /* List of statically defined specs. */
1514 static struct spec_list static_specs[] =
1516 INIT_STATIC_SPEC ("asm", &asm_spec),
1517 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1518 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1519 INIT_STATIC_SPEC ("asm_options", &asm_options),
1520 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1521 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1522 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1523 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1524 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1525 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1526 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1527 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1528 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1529 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1530 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1531 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1532 INIT_STATIC_SPEC ("link", &link_spec),
1533 INIT_STATIC_SPEC ("lib", &lib_spec),
1534 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1535 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1536 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1537 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1538 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1539 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1540 INIT_STATIC_SPEC ("version", &compiler_version),
1541 INIT_STATIC_SPEC ("multilib", &multilib_select),
1542 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1543 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1544 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1545 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1546 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1547 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1548 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1549 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1550 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1551 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1552 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1553 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1554 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1555 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1558 #ifdef EXTRA_SPECS /* additional specs needed */
1559 /* Structure to keep track of just the first two args of a spec_list.
1560 That is all that the EXTRA_SPECS macro gives us. */
1563 const char *const name;
1564 const char *const ptr;
1567 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1568 static struct spec_list *extra_specs = (struct spec_list *) 0;
1571 /* List of dynamically allocates specs that have been defined so far. */
1573 static struct spec_list *specs = (struct spec_list *) 0;
1575 /* List of static spec functions. */
1577 static const struct spec_function static_spec_functions[] =
1579 { "if-exists", if_exists_spec_function },
1580 { "if-exists-else", if_exists_else_spec_function },
1581 { "replace-outfile", replace_outfile_spec_function },
1582 { "version-compare", version_compare_spec_function },
1586 static int processing_spec_function;
1588 /* Add appropriate libgcc specs to OBSTACK, taking into account
1589 various permutations of -shared-libgcc, -shared, and such. */
1591 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1593 #ifndef USE_LD_AS_NEEDED
1594 #define USE_LD_AS_NEEDED 0
1598 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1599 const char *static_name, const char *eh_name)
1603 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name,
1604 "}%{!static:%{!static-libgcc:",
1605 #if USE_LD_AS_NEEDED
1606 "%{!shared-libgcc:", static_name,
1607 " --as-needed ", shared_name, " --no-as-needed}"
1608 "%{shared-libgcc:", shared_name, "%{!shared: ", static_name,
1611 "%{!shared:%{!shared-libgcc:", static_name, " ",
1612 eh_name, "}%{shared-libgcc:", shared_name, " ",
1613 static_name, "}}%{shared:",
1615 "%{shared-libgcc:", shared_name,
1616 "}%{!shared-libgcc:", static_name, "}",
1623 obstack_grow (obstack, buf, strlen (buf));
1626 #endif /* ENABLE_SHARED_LIBGCC */
1628 /* Initialize the specs lookup routines. */
1633 struct spec_list *next = (struct spec_list *) 0;
1634 struct spec_list *sl = (struct spec_list *) 0;
1638 return; /* Already initialized. */
1641 notice ("Using built-in specs.\n");
1644 extra_specs = xcalloc (sizeof (struct spec_list),
1645 ARRAY_SIZE (extra_specs_1));
1647 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1649 sl = &extra_specs[i];
1650 sl->name = extra_specs_1[i].name;
1651 sl->ptr = extra_specs_1[i].ptr;
1653 sl->name_len = strlen (sl->name);
1654 sl->ptr_spec = &sl->ptr;
1659 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1660 on ?: in file-scope variable initializations. */
1661 asm_debug = ASM_DEBUG_SPEC;
1663 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1665 sl = &static_specs[i];
1670 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1671 /* ??? If neither -shared-libgcc nor --static-libgcc was
1672 seen, then we should be making an educated guess. Some proposed
1673 heuristics for ELF include:
1675 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1676 program will be doing dynamic loading, which will likely
1677 need the shared libgcc.
1679 (2) If "-ldl", then it's also a fair bet that we're doing
1682 (3) For each ET_DYN we're linking against (either through -lfoo
1683 or /some/path/foo.so), check to see whether it or one of
1684 its dependencies depends on a shared libgcc.
1688 If the runtime is fixed to look for program headers instead
1689 of calling __register_frame_info at all, for each object,
1690 use the shared libgcc if any EH symbol referenced.
1692 If crtstuff is fixed to not invoke __register_frame_info
1693 automatically, for each object, use the shared libgcc if
1694 any non-empty unwind section found.
1696 Doing any of this probably requires invoking an external program to
1697 do the actual object file scanning. */
1699 const char *p = libgcc_spec;
1702 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1703 when given the proper command line arguments. */
1706 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1708 init_gcc_specs (&obstack,
1710 #ifdef USE_LIBUNWIND_EXCEPTIONS
1716 #ifdef USE_LIBUNWIND_EXCEPTIONS
1717 # ifdef HAVE_LD_STATIC_DYNAMIC
1718 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1728 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1730 /* Ug. We don't know shared library extensions. Hope that
1731 systems that use this form don't do shared libraries. */
1732 init_gcc_specs (&obstack,
1736 #ifdef USE_LIBUNWIND_EXCEPTIONS
1745 obstack_1grow (&obstack, *p);
1746 in_sep = (*p == ' ');
1751 obstack_1grow (&obstack, '\0');
1752 libgcc_spec = XOBFINISH (&obstack, const char *);
1755 #ifdef USE_AS_TRADITIONAL_FORMAT
1756 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1758 static const char tf[] = "--traditional-format ";
1759 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1760 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1761 asm_spec = XOBFINISH (&obstack, const char *);
1765 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1766 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1767 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1768 link_spec = XOBFINISH (&obstack, const char *);
1774 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1775 removed; If the spec starts with a + then SPEC is added to the end of the
1779 set_spec (const char *name, const char *spec)
1781 struct spec_list *sl;
1782 const char *old_spec;
1783 int name_len = strlen (name);
1786 /* If this is the first call, initialize the statically allocated specs. */
1789 struct spec_list *next = (struct spec_list *) 0;
1790 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1792 sl = &static_specs[i];
1799 /* See if the spec already exists. */
1800 for (sl = specs; sl; sl = sl->next)
1801 if (name_len == sl->name_len && !strcmp (sl->name, name))
1806 /* Not found - make it. */
1807 sl = xmalloc (sizeof (struct spec_list));
1808 sl->name = xstrdup (name);
1809 sl->name_len = name_len;
1810 sl->ptr_spec = &sl->ptr;
1812 *(sl->ptr_spec) = "";
1817 old_spec = *(sl->ptr_spec);
1818 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1819 ? concat (old_spec, spec + 1, NULL)
1824 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1827 /* Free the old spec. */
1828 if (old_spec && sl->alloc_p)
1829 free ((void *) old_spec);
1834 /* Accumulate a command (program name and args), and run it. */
1836 /* Vector of pointers to arguments in the current line of specifications. */
1838 static const char **argbuf;
1840 /* Number of elements allocated in argbuf. */
1842 static int argbuf_length;
1844 /* Number of elements in argbuf currently in use (containing args). */
1846 static int argbuf_index;
1848 /* Position in the argbuf array containing the name of the output file
1849 (the value associated with the "-o" flag). */
1851 static int have_o_argbuf_index = 0;
1853 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1854 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1857 static struct temp_name {
1858 const char *suffix; /* suffix associated with the code. */
1859 int length; /* strlen (suffix). */
1860 int unique; /* Indicates whether %g or %u/%U was used. */
1861 const char *filename; /* associated filename. */
1862 int filename_length; /* strlen (filename). */
1863 struct temp_name *next;
1866 /* Number of commands executed so far. */
1868 static int execution_count;
1870 /* Number of commands that exited with a signal. */
1872 static int signal_count;
1874 /* Name with which this program was invoked. */
1876 static const char *programname;
1878 /* Allocate the argument vector. */
1884 argbuf = xmalloc (argbuf_length * sizeof (const char *));
1887 /* Clear out the vector of arguments (after a command is executed). */
1895 /* Add one argument to the vector at the end.
1896 This is done when a space is seen or at the end of the line.
1897 If DELETE_ALWAYS is nonzero, the arg is a filename
1898 and the file should be deleted eventually.
1899 If DELETE_FAILURE is nonzero, the arg is a filename
1900 and the file should be deleted if this compilation fails. */
1903 store_arg (const char *arg, int delete_always, int delete_failure)
1905 if (argbuf_index + 1 == argbuf_length)
1906 argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
1908 argbuf[argbuf_index++] = arg;
1909 argbuf[argbuf_index] = 0;
1911 if (strcmp (arg, "-o") == 0)
1912 have_o_argbuf_index = argbuf_index;
1913 if (delete_always || delete_failure)
1914 record_temp_file (arg, delete_always, delete_failure);
1917 /* Load specs from a file name named FILENAME, replacing occurrences of
1918 various different types of line-endings, \r\n, \n\r and just \r, with
1922 load_specs (const char *filename)
1926 struct stat statbuf;
1933 notice ("Reading specs from %s\n", filename);
1935 /* Open and stat the file. */
1936 desc = open (filename, O_RDONLY, 0);
1938 pfatal_with_name (filename);
1939 if (stat (filename, &statbuf) < 0)
1940 pfatal_with_name (filename);
1942 /* Read contents of file into BUFFER. */
1943 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1944 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1946 pfatal_with_name (filename);
1947 buffer[readlen] = 0;
1950 specs = xmalloc (readlen + 1);
1952 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1958 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1960 else if (*(buffer_p + 1) == '\n') /* \r\n */
1974 /* Read compilation specs from a file named FILENAME,
1975 replacing the default ones.
1977 A suffix which starts with `*' is a definition for
1978 one of the machine-specific sub-specs. The "suffix" should be
1979 *asm, *cc1, *cpp, *link, *startfile, etc.
1980 The corresponding spec is stored in asm_spec, etc.,
1981 rather than in the `compilers' vector.
1983 Anything invalid in the file is a fatal error. */
1986 read_specs (const char *filename, int main_p)
1991 buffer = load_specs (filename);
1993 /* Scan BUFFER for specs, putting them in the vector. */
1999 char *in, *out, *p1, *p2, *p3;
2001 /* Advance P in BUFFER to the next nonblank nocomment line. */
2002 p = skip_whitespace (p);
2006 /* Is this a special command that starts with '%'? */
2007 /* Don't allow this for the main specs file, since it would
2008 encourage people to overwrite it. */
2009 if (*p == '%' && !main_p)
2012 while (*p && *p != '\n')
2018 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2019 && (p1[sizeof "%include" - 1] == ' '
2020 || p1[sizeof "%include" - 1] == '\t'))
2024 p1 += sizeof ("%include");
2025 while (*p1 == ' ' || *p1 == '\t')
2028 if (*p1++ != '<' || p[-2] != '>')
2029 fatal ("specs %%include syntax malformed after %ld characters",
2030 (long) (p1 - buffer + 1));
2033 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0);
2034 read_specs (new_filename ? new_filename : p1, FALSE);
2037 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2038 && (p1[sizeof "%include_noerr" - 1] == ' '
2039 || p1[sizeof "%include_noerr" - 1] == '\t'))
2043 p1 += sizeof "%include_noerr";
2044 while (*p1 == ' ' || *p1 == '\t')
2047 if (*p1++ != '<' || p[-2] != '>')
2048 fatal ("specs %%include syntax malformed after %ld characters",
2049 (long) (p1 - buffer + 1));
2052 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0);
2054 read_specs (new_filename, FALSE);
2055 else if (verbose_flag)
2056 notice ("could not find specs file %s\n", p1);
2059 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2060 && (p1[sizeof "%rename" - 1] == ' '
2061 || p1[sizeof "%rename" - 1] == '\t'))
2064 struct spec_list *sl;
2065 struct spec_list *newsl;
2067 /* Get original name. */
2068 p1 += sizeof "%rename";
2069 while (*p1 == ' ' || *p1 == '\t')
2072 if (! ISALPHA ((unsigned char) *p1))
2073 fatal ("specs %%rename syntax malformed after %ld characters",
2074 (long) (p1 - buffer));
2077 while (*p2 && !ISSPACE ((unsigned char) *p2))
2080 if (*p2 != ' ' && *p2 != '\t')
2081 fatal ("specs %%rename syntax malformed after %ld characters",
2082 (long) (p2 - buffer));
2086 while (*p2 == ' ' || *p2 == '\t')
2089 if (! ISALPHA ((unsigned char) *p2))
2090 fatal ("specs %%rename syntax malformed after %ld characters",
2091 (long) (p2 - buffer));
2093 /* Get new spec name. */
2095 while (*p3 && !ISSPACE ((unsigned char) *p3))
2099 fatal ("specs %%rename syntax malformed after %ld characters",
2100 (long) (p3 - buffer));
2103 for (sl = specs; sl; sl = sl->next)
2104 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2108 fatal ("specs %s spec was not found to be renamed", p1);
2110 if (strcmp (p1, p2) == 0)
2113 for (newsl = specs; newsl; newsl = newsl->next)
2114 if (strcmp (newsl->name, p2) == 0)
2115 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2120 notice ("rename spec %s to %s\n", p1, p2);
2122 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2126 set_spec (p2, *(sl->ptr_spec));
2128 free ((void *) *(sl->ptr_spec));
2130 *(sl->ptr_spec) = "";
2135 fatal ("specs unknown %% command after %ld characters",
2136 (long) (p1 - buffer));
2139 /* Find the colon that should end the suffix. */
2141 while (*p1 && *p1 != ':' && *p1 != '\n')
2144 /* The colon shouldn't be missing. */
2146 fatal ("specs file malformed after %ld characters",
2147 (long) (p1 - buffer));
2149 /* Skip back over trailing whitespace. */
2151 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2154 /* Copy the suffix to a string. */
2155 suffix = save_string (p, p2 - p);
2156 /* Find the next line. */
2157 p = skip_whitespace (p1 + 1);
2159 fatal ("specs file malformed after %ld characters",
2160 (long) (p - buffer));
2163 /* Find next blank line or end of string. */
2164 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2167 /* Specs end at the blank line and do not include the newline. */
2168 spec = save_string (p, p1 - p);
2171 /* Delete backslash-newline sequences from the spec. */
2176 if (in[0] == '\\' && in[1] == '\n')
2178 else if (in[0] == '#')
2179 while (*in && *in != '\n')
2187 if (suffix[0] == '*')
2189 if (! strcmp (suffix, "*link_command"))
2190 link_command_spec = spec;
2192 set_spec (suffix + 1, spec);
2196 /* Add this pair to the vector. */
2198 = xrealloc (compilers,
2199 (n_compilers + 2) * sizeof (struct compiler));
2201 compilers[n_compilers].suffix = suffix;
2202 compilers[n_compilers].spec = spec;
2204 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2208 link_command_spec = spec;
2211 if (link_command_spec == 0)
2212 fatal ("spec file has no spec for linking");
2215 /* Record the names of temporary files we tell compilers to write,
2216 and delete them at the end of the run. */
2218 /* This is the common prefix we use to make temp file names.
2219 It is chosen once for each run of this program.
2220 It is substituted into a spec by %g or %j.
2221 Thus, all temp file names contain this prefix.
2222 In practice, all temp file names start with this prefix.
2224 This prefix comes from the envvar TMPDIR if it is defined;
2225 otherwise, from the P_tmpdir macro if that is defined;
2226 otherwise, in /usr/tmp or /tmp;
2227 or finally the current directory if all else fails. */
2229 static const char *temp_filename;
2231 /* Length of the prefix. */
2233 static int temp_filename_length;
2235 /* Define the list of temporary files to delete. */
2240 struct temp_file *next;
2243 /* Queue of files to delete on success or failure of compilation. */
2244 static struct temp_file *always_delete_queue;
2245 /* Queue of files to delete on failure of compilation. */
2246 static struct temp_file *failure_delete_queue;
2248 /* Record FILENAME as a file to be deleted automatically.
2249 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2250 otherwise delete it in any case.
2251 FAIL_DELETE nonzero means delete it if a compilation step fails;
2252 otherwise delete it in any case. */
2255 record_temp_file (const char *filename, int always_delete, int fail_delete)
2257 char *const name = xstrdup (filename);
2261 struct temp_file *temp;
2262 for (temp = always_delete_queue; temp; temp = temp->next)
2263 if (! strcmp (name, temp->name))
2266 temp = xmalloc (sizeof (struct temp_file));
2267 temp->next = always_delete_queue;
2269 always_delete_queue = temp;
2276 struct temp_file *temp;
2277 for (temp = failure_delete_queue; temp; temp = temp->next)
2278 if (! strcmp (name, temp->name))
2281 temp = xmalloc (sizeof (struct temp_file));
2282 temp->next = failure_delete_queue;
2284 failure_delete_queue = temp;
2290 /* Delete all the temporary files whose names we previously recorded. */
2292 #ifndef DELETE_IF_ORDINARY
2293 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2296 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2297 if (unlink (NAME) < 0) \
2299 perror_with_name (NAME); \
2304 delete_if_ordinary (const char *name)
2310 printf ("Delete %s? (y or n) ", name);
2314 while ((c = getchar ()) != '\n' && c != EOF)
2317 if (i == 'y' || i == 'Y')
2319 DELETE_IF_ORDINARY (name, st, verbose_flag);
2323 delete_temp_files (void)
2325 struct temp_file *temp;
2327 for (temp = always_delete_queue; temp; temp = temp->next)
2328 delete_if_ordinary (temp->name);
2329 always_delete_queue = 0;
2332 /* Delete all the files to be deleted on error. */
2335 delete_failure_queue (void)
2337 struct temp_file *temp;
2339 for (temp = failure_delete_queue; temp; temp = temp->next)
2340 delete_if_ordinary (temp->name);
2344 clear_failure_queue (void)
2346 failure_delete_queue = 0;
2349 /* Build a list of search directories from PATHS.
2350 PREFIX is a string to prepend to the list.
2351 If CHECK_DIR_P is nonzero we ensure the directory exists.
2352 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2353 It is also used by the --print-search-dirs flag. */
2356 build_search_list (struct path_prefix *paths, const char *prefix,
2359 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2361 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2362 int first_time = TRUE;
2363 struct prefix_list *pprefix;
2365 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2366 obstack_1grow (&collect_obstack, '=');
2368 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2370 int len = strlen (pprefix->prefix);
2374 || is_directory (pprefix->prefix, machine_suffix, 0)))
2377 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2380 obstack_grow (&collect_obstack, pprefix->prefix, len);
2381 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2384 if (just_machine_suffix
2385 && pprefix->require_machine_suffix == 2
2387 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2390 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2393 obstack_grow (&collect_obstack, pprefix->prefix, len);
2394 obstack_grow (&collect_obstack, just_machine_suffix,
2398 if (! pprefix->require_machine_suffix)
2401 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2404 obstack_grow (&collect_obstack, pprefix->prefix, len);
2408 obstack_1grow (&collect_obstack, '\0');
2409 return XOBFINISH (&collect_obstack, char *);
2412 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2416 putenv_from_prefixes (struct path_prefix *paths, const char *env_var)
2418 putenv (build_search_list (paths, env_var, 1));
2421 /* Check whether NAME can be accessed in MODE. This is like access,
2422 except that it never considers directories to be executable. */
2425 access_check (const char *name, int mode)
2431 if (stat (name, &st) < 0
2432 || S_ISDIR (st.st_mode))
2436 return access (name, mode);
2439 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2440 access to check permissions.
2441 Return 0 if not found, otherwise return its name, allocated with malloc. */
2444 find_a_file (struct path_prefix *pprefix, const char *name, int mode,
2448 const char *const file_suffix =
2449 ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
2450 struct prefix_list *pl;
2451 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2452 const char *multilib_name, *multilib_os_name;
2454 #ifdef DEFAULT_ASSEMBLER
2455 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2456 return xstrdup (DEFAULT_ASSEMBLER);
2459 #ifdef DEFAULT_LINKER
2460 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2461 return xstrdup (DEFAULT_LINKER);
2465 len += strlen (machine_suffix);
2467 multilib_name = name;
2468 multilib_os_name = name;
2469 if (multilib && multilib_os_dir)
2471 int len1 = multilib_dir ? strlen (multilib_dir) + 1 : 0;
2472 int len2 = strlen (multilib_os_dir) + 1;
2474 len += len1 > len2 ? len1 : len2;
2476 multilib_name = ACONCAT ((multilib_dir, dir_separator_str, name,
2478 if (strcmp (multilib_os_dir, ".") != 0)
2479 multilib_os_name = ACONCAT ((multilib_os_dir, dir_separator_str, name,
2483 temp = xmalloc (len);
2485 /* Determine the filename to execute (special case for absolute paths). */
2487 if (IS_ABSOLUTE_PATH (name))
2489 if (access (name, mode) == 0)
2491 strcpy (temp, name);
2496 for (pl = pprefix->plist; pl; pl = pl->next)
2498 const char *this_name
2499 = pl->os_multilib ? multilib_os_name : multilib_name;
2503 /* Some systems have a suffix for executable files.
2504 So try appending that first. */
2505 if (file_suffix[0] != 0)
2507 strcpy (temp, pl->prefix);
2508 strcat (temp, machine_suffix);
2509 strcat (temp, multilib_name);
2510 strcat (temp, file_suffix);
2511 if (access_check (temp, mode) == 0)
2515 /* Now try just the multilib_name. */
2516 strcpy (temp, pl->prefix);
2517 strcat (temp, machine_suffix);
2518 strcat (temp, multilib_name);
2519 if (access_check (temp, mode) == 0)
2523 /* Certain prefixes are tried with just the machine type,
2524 not the version. This is used for finding as, ld, etc. */
2525 if (just_machine_suffix && pl->require_machine_suffix == 2)
2527 /* Some systems have a suffix for executable files.
2528 So try appending that first. */
2529 if (file_suffix[0] != 0)
2531 strcpy (temp, pl->prefix);
2532 strcat (temp, just_machine_suffix);
2533 strcat (temp, multilib_name);
2534 strcat (temp, file_suffix);
2535 if (access_check (temp, mode) == 0)
2539 strcpy (temp, pl->prefix);
2540 strcat (temp, just_machine_suffix);
2541 strcat (temp, multilib_name);
2542 if (access_check (temp, mode) == 0)
2546 /* Certain prefixes can't be used without the machine suffix
2547 when the machine or version is explicitly specified. */
2548 if (! pl->require_machine_suffix)
2550 /* Some systems have a suffix for executable files.
2551 So try appending that first. */
2552 if (file_suffix[0] != 0)
2554 strcpy (temp, pl->prefix);
2555 strcat (temp, this_name);
2556 strcat (temp, file_suffix);
2557 if (access_check (temp, mode) == 0)
2561 strcpy (temp, pl->prefix);
2562 strcat (temp, this_name);
2563 if (access_check (temp, mode) == 0)
2572 /* Ranking of prefixes in the sort list. -B prefixes are put before
2575 enum path_prefix_priority
2577 PREFIX_PRIORITY_B_OPT,
2578 PREFIX_PRIORITY_LAST
2581 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2582 order according to PRIORITY. Within each PRIORITY, new entries are
2585 If WARN is nonzero, we will warn if no file is found
2586 through this prefix. WARN should point to an int
2587 which will be set to 1 if this entry is used.
2589 COMPONENT is the value to be passed to update_path.
2591 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2592 the complete value of machine_suffix.
2593 2 means try both machine_suffix and just_machine_suffix. */
2596 add_prefix (struct path_prefix *pprefix, const char *prefix,
2597 const char *component, /* enum prefix_priority */ int priority,
2598 int require_machine_suffix, int os_multilib)
2600 struct prefix_list *pl, **prev;
2603 for (prev = &pprefix->plist;
2604 (*prev) != NULL && (*prev)->priority <= priority;
2605 prev = &(*prev)->next)
2608 /* Keep track of the longest prefix. */
2610 prefix = update_path (prefix, component);
2611 len = strlen (prefix);
2612 if (len > pprefix->max_len)
2613 pprefix->max_len = len;
2615 pl = xmalloc (sizeof (struct prefix_list));
2616 pl->prefix = prefix;
2617 pl->require_machine_suffix = require_machine_suffix;
2618 pl->priority = priority;
2619 pl->os_multilib = os_multilib;
2621 /* Insert after PREV. */
2626 /* Same as add_prefix, but prepending target_system_root to prefix. */
2628 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2629 const char *component,
2630 /* enum prefix_priority */ int priority,
2631 int require_machine_suffix, int os_multilib)
2633 if (!IS_ABSOLUTE_PATH (prefix))
2634 fatal ("system path '%s' is not absolute", prefix);
2636 if (target_system_root)
2638 if (target_sysroot_suffix)
2639 prefix = concat (target_sysroot_suffix, prefix, NULL);
2640 prefix = concat (target_system_root, prefix, NULL);
2642 /* We have to override this because GCC's notion of sysroot
2643 moves along with GCC. */
2647 add_prefix (pprefix, prefix, component, priority,
2648 require_machine_suffix, os_multilib);
2651 /* Execute the command specified by the arguments on the current line of spec.
2652 When using pipes, this includes several piped-together commands
2653 with `|' between them.
2655 Return 0 if successful, -1 if failed. */
2661 int n_commands; /* # of command. */
2663 struct pex_obj *pex;
2666 const char *prog; /* program name. */
2667 const char **argv; /* vector of args. */
2670 struct command *commands; /* each command buffer with above info. */
2672 gcc_assert (!processing_spec_function);
2674 /* Count # of piped commands. */
2675 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2676 if (strcmp (argbuf[i], "|") == 0)
2679 /* Get storage for each command. */
2680 commands = alloca (n_commands * sizeof (struct command));
2682 /* Split argbuf into its separate piped processes,
2683 and record info about each one.
2684 Also search for the programs that are to be run. */
2686 commands[0].prog = argbuf[0]; /* first command. */
2687 commands[0].argv = &argbuf[0];
2688 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, 0);
2691 commands[0].argv[0] = string;
2693 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2694 if (strcmp (argbuf[i], "|") == 0)
2695 { /* each command. */
2696 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2697 fatal ("-pipe not supported");
2699 argbuf[i] = 0; /* termination of command args. */
2700 commands[n_commands].prog = argbuf[i + 1];
2701 commands[n_commands].argv = &argbuf[i + 1];
2702 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2705 commands[n_commands].argv[0] = string;
2709 argbuf[argbuf_index] = 0;
2711 /* If -v, print what we are about to do, and maybe query. */
2715 /* For help listings, put a blank line between sub-processes. */
2716 if (print_help_list)
2717 fputc ('\n', stderr);
2719 /* Print each piped command as a separate line. */
2720 for (i = 0; i < n_commands; i++)
2722 const char *const *j;
2724 if (verbose_only_flag)
2726 for (j = commands[i].argv; *j; j++)
2729 fprintf (stderr, " \"");
2730 for (p = *j; *p; ++p)
2732 if (*p == '"' || *p == '\\' || *p == '$')
2733 fputc ('\\', stderr);
2736 fputc ('"', stderr);
2740 for (j = commands[i].argv; *j; j++)
2741 fprintf (stderr, " %s", *j);
2743 /* Print a pipe symbol after all but the last command. */
2744 if (i + 1 != n_commands)
2745 fprintf (stderr, " |");
2746 fprintf (stderr, "\n");
2749 if (verbose_only_flag != 0)
2751 /* verbose_only_flag should act as if the spec was
2752 executed, so increment execution_count before
2753 returning. This prevents spurious warnings about
2754 unused linker input files, etc. */
2759 notice ("\nGo ahead? (y or n) ");
2763 while (getchar () != '\n')
2766 if (i != 'y' && i != 'Y')
2771 #ifdef ENABLE_VALGRIND_CHECKING
2772 /* Run the each command through valgrind. To simplify prepending the
2773 path to valgrind and the option "-q" (for quiet operation unless
2774 something triggers), we allocate a separate argv array. */
2776 for (i = 0; i < n_commands; i++)
2782 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
2785 argv = alloca ((argc + 3) * sizeof (char *));
2787 argv[0] = VALGRIND_PATH;
2789 for (j = 2; j < argc + 2; j++)
2790 argv[j] = commands[i].argv[j - 2];
2793 commands[i].argv = argv;
2794 commands[i].prog = argv[0];
2798 /* Run each piped subprocess. */
2800 pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
2801 programname, temp_filename);
2803 pfatal_with_name (_("pex_init failed"));
2805 for (i = 0; i < n_commands; i++)
2809 const char *string = commands[i].argv[0];
2811 errmsg = pex_run (pex,
2812 ((i + 1 == n_commands ? PEX_LAST : 0)
2813 | (string == commands[i].prog ? PEX_SEARCH : 0)),
2814 string, (char * const *) commands[i].argv,
2823 pfatal_with_name (errmsg);
2827 if (string != commands[i].prog)
2828 free ((void *) string);
2833 /* Wait for all the subprocesses to finish. */
2837 struct pex_time *times = NULL;
2840 statuses = alloca (n_commands * sizeof (int));
2841 if (!pex_get_status (pex, n_commands, statuses))
2842 pfatal_with_name (_("failed to get exit status"));
2846 times = alloca (n_commands * sizeof (struct pex_time));
2847 if (!pex_get_times (pex, n_commands, times))
2848 pfatal_with_name (_("failed to get process times"));
2853 for (i = 0; i < n_commands; ++i)
2855 int status = statuses[i];
2857 if (WIFSIGNALED (status))
2860 /* SIGPIPE is a special case. It happens in -pipe mode
2861 when the compiler dies before the preprocessor is done,
2862 or the assembler dies before the compiler is done.
2863 There's generally been an error already, and this is
2864 just fallout. So don't generate another error unless
2865 we would otherwise have succeeded. */
2866 if (WTERMSIG (status) == SIGPIPE
2867 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2872 Internal error: %s (program %s)\n\
2873 Please submit a full bug report.\n\
2874 See %s for instructions.",
2875 strsignal (WTERMSIG (status)), commands[i].prog,
2880 else if (WIFEXITED (status)
2881 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2883 if (WEXITSTATUS (status) > greatest_status)
2884 greatest_status = WEXITSTATUS (status);
2890 struct pex_time *pt = ×[i];
2893 ut = ((double) pt->user_seconds
2894 + (double) pt->user_microseconds / 1.0e6);
2895 st = ((double) pt->system_seconds
2896 + (double) pt->system_microseconds / 1.0e6);
2899 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
2907 /* Find all the switches given to us
2908 and make a vector describing them.
2909 The elements of the vector are strings, one per switch given.
2910 If a switch uses following arguments, then the `part1' field
2911 is the switch itself and the `args' field
2912 is a null-terminated vector containing the following arguments.
2913 The `live_cond' field is:
2915 1 if the switch is true in a conditional spec,
2916 -1 if false (overridden by a later switch)
2917 -2 if this switch should be ignored (used in %<S)
2918 The `validated' field is nonzero if any spec has looked at this switch;
2919 if it remains zero at the end of the run, it must be meaningless. */
2922 #define SWITCH_FALSE -1
2923 #define SWITCH_IGNORE -2
2924 #define SWITCH_LIVE 1
2931 unsigned char validated;
2932 unsigned char ordering;
2935 static struct switchstr *switches;
2937 static int n_switches;
2942 const char *language;
2943 struct compiler *incompiler;
2948 /* Also a vector of input files specified. */
2950 static struct infile *infiles;
2954 /* True if multiple input files are being compiled to a single
2957 static bool combine_inputs;
2959 /* This counts the number of libraries added by lang_specific_driver, so that
2960 we can tell if there were any user supplied any files or libraries. */
2962 static int added_libraries;
2964 /* And a vector of corresponding output files is made up later. */
2966 const char **outfiles;
2968 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2970 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2971 is true if we should look for an executable suffix. DO_OBJ
2972 is true if we should look for an object suffix. */
2975 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
2976 int do_obj ATTRIBUTE_UNUSED)
2978 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2986 len = strlen (name);
2988 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2989 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2990 if (do_obj && len > 2
2991 && name[len - 2] == '.'
2992 && name[len - 1] == 'o')
2994 obstack_grow (&obstack, name, len - 2);
2995 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
2996 name = XOBFINISH (&obstack, const char *);
3000 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3001 /* If there is no filetype, make it the executable suffix (which includes
3002 the "."). But don't get confused if we have just "-o". */
3003 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3006 for (i = len - 1; i >= 0; i--)
3007 if (IS_DIR_SEPARATOR (name[i]))
3010 for (i++; i < len; i++)
3014 obstack_grow (&obstack, name, len);
3015 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3016 strlen (TARGET_EXECUTABLE_SUFFIX));
3017 name = XOBFINISH (&obstack, const char *);
3024 /* Display the command line switches accepted by gcc. */
3028 printf (_("Usage: %s [options] file...\n"), programname);
3029 fputs (_("Options:\n"), stdout);
3031 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3032 fputs (_(" --help Display this information\n"), stdout);
3033 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3035 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3036 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3037 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3038 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3039 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3040 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3041 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3042 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3043 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3045 -print-multi-lib Display the mapping between command line options and\n\
3046 multiple library search directories\n"), stdout);
3047 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3048 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3049 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3050 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3051 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3052 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3053 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3054 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3055 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3056 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3057 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3058 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3059 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3060 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3061 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3062 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3063 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3064 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3065 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3066 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3067 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3068 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3070 -x <language> Specify the language of the following input files\n\
3071 Permissible languages include: c c++ assembler none\n\
3072 'none' means revert to the default behavior of\n\
3073 guessing the language based on the file's extension\n\
3077 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3078 passed on to the various sub-processes invoked by %s. In order to pass\n\
3079 other options on to these processes the -W<letter> options must be used.\n\
3082 /* The rest of the options are displayed by invocations of the various
3087 add_preprocessor_option (const char *option, int len)
3089 n_preprocessor_options++;
3091 if (! preprocessor_options)
3092 preprocessor_options = xmalloc (n_preprocessor_options * sizeof (char *));
3094 preprocessor_options = xrealloc (preprocessor_options,
3095 n_preprocessor_options * sizeof (char *));
3097 preprocessor_options [n_preprocessor_options - 1] =
3098 save_string (option, len);
3102 add_assembler_option (const char *option, int len)
3104 n_assembler_options++;
3106 if (! assembler_options)
3107 assembler_options = xmalloc (n_assembler_options * sizeof (char *));
3109 assembler_options = xrealloc (assembler_options,
3110 n_assembler_options * sizeof (char *));
3112 assembler_options [n_assembler_options - 1] = save_string (option, len);
3116 add_linker_option (const char *option, int len)
3120 if (! linker_options)
3121 linker_options = xmalloc (n_linker_options * sizeof (char *));
3123 linker_options = xrealloc (linker_options,
3124 n_linker_options * sizeof (char *));
3126 linker_options [n_linker_options - 1] = save_string (option, len);
3129 /* Create the vector `switches' and its contents.
3130 Store its length in `n_switches'. */
3133 process_command (int argc, const char **argv)
3138 const char *spec_lang = 0;
3139 int last_language_n_infiles;
3141 int lang_n_infiles = 0;
3142 #ifdef MODIFY_TARGET_NAME
3143 int is_modify_target_name;
3147 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3151 added_libraries = 0;
3153 /* Figure compiler version from version string. */
3155 compiler_version = temp1 = xstrdup (version_string);
3157 for (; *temp1; ++temp1)
3166 /* If there is a -V or -b option (or both), process it now, before
3167 trying to interpret the rest of the command line. */
3168 if (argc > 1 && argv[1][0] == '-'
3169 && (argv[1][1] == 'V' || argv[1][1] == 'b'))
3171 const char *new_version = DEFAULT_TARGET_VERSION;
3172 const char *new_machine = DEFAULT_TARGET_MACHINE;
3173 const char *progname = argv[0];
3178 while (argc > 1 && argv[1][0] == '-'
3179 && (argv[1][1] == 'V' || argv[1][1] == 'b'))
3181 char opt = argv[1][1];
3183 if (argv[1][2] != '\0')
3196 fatal ("'-%c' option must have argument", opt);
3203 for (baselen = strlen (progname); baselen > 0; baselen--)
3204 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3206 new_argv0 = xmemdup (progname, baselen,
3207 baselen + concat_length (new_version, new_machine,
3208 "-gcc-", NULL) + 1);
3209 strcpy (new_argv0 + baselen, new_machine);
3210 strcat (new_argv0, "-gcc-");
3211 strcat (new_argv0, new_version);
3213 new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
3214 (argc + 1) * sizeof (argv[0]));
3215 new_argv[0] = new_argv0;
3217 execvp (new_argv0, new_argv);
3218 fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
3221 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3222 see if we can create it from the pathname specified in argv[0]. */
3224 gcc_libexec_prefix = standard_libexec_prefix;
3226 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3227 if (!gcc_exec_prefix)
3229 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3230 standard_exec_prefix);
3231 gcc_libexec_prefix = make_relative_prefix (argv[0],
3232 standard_bindir_prefix,
3233 standard_libexec_prefix);
3234 if (gcc_exec_prefix)
3235 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3238 gcc_libexec_prefix = make_relative_prefix (gcc_exec_prefix,
3239 standard_exec_prefix,
3240 standard_libexec_prefix);
3244 if (gcc_exec_prefix)
3246 int len = strlen (gcc_exec_prefix);
3248 if (len > (int) sizeof ("/lib/gcc/") - 1
3249 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3251 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3252 if (IS_DIR_SEPARATOR (*temp)
3253 && strncmp (temp + 1, "lib", 3) == 0
3254 && IS_DIR_SEPARATOR (temp[4])
3255 && strncmp (temp + 5, "gcc", 3) == 0)
3256 len -= sizeof ("/lib/gcc/") - 1;
3259 set_std_prefix (gcc_exec_prefix, len);
3260 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3261 PREFIX_PRIORITY_LAST, 0, 0);
3262 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3263 PREFIX_PRIORITY_LAST, 0, 0);
3266 /* COMPILER_PATH and LIBRARY_PATH have values
3267 that are lists of directory names with colons. */
3269 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3272 const char *startp, *endp;
3273 char *nstore = alloca (strlen (temp) + 3);
3275 startp = endp = temp;
3278 if (*endp == PATH_SEPARATOR || *endp == 0)
3280 strncpy (nstore, startp, endp - startp);
3282 strcpy (nstore, concat (".", dir_separator_str, NULL));
3283 else if (!IS_DIR_SEPARATOR (endp[-1]))
3285 nstore[endp - startp] = DIR_SEPARATOR;
3286 nstore[endp - startp + 1] = 0;
3289 nstore[endp - startp] = 0;
3290 add_prefix (&exec_prefixes, nstore, 0,
3291 PREFIX_PRIORITY_LAST, 0, 0);
3292 add_prefix (&include_prefixes, nstore, 0,
3293 PREFIX_PRIORITY_LAST, 0, 0);
3296 endp = startp = endp + 1;
3303 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3304 if (temp && *cross_compile == '0')
3306 const char *startp, *endp;
3307 char *nstore = alloca (strlen (temp) + 3);
3309 startp = endp = temp;
3312 if (*endp == PATH_SEPARATOR || *endp == 0)
3314 strncpy (nstore, startp, endp - startp);
3316 strcpy (nstore, concat (".", dir_separator_str, NULL));
3317 else if (!IS_DIR_SEPARATOR (endp[-1]))
3319 nstore[endp - startp] = DIR_SEPARATOR;
3320 nstore[endp - startp + 1] = 0;
3323 nstore[endp - startp] = 0;
3324 add_prefix (&startfile_prefixes, nstore, NULL,
3325 PREFIX_PRIORITY_LAST, 0, 1);
3328 endp = startp = endp + 1;
3335 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3336 GET_ENVIRONMENT (temp, "LPATH");
3337 if (temp && *cross_compile == '0')
3339 const char *startp, *endp;
3340 char *nstore = alloca (strlen (temp) + 3);
3342 startp = endp = temp;
3345 if (*endp == PATH_SEPARATOR || *endp == 0)
3347 strncpy (nstore, startp, endp - startp);
3349 strcpy (nstore, concat (".", dir_separator_str, NULL));
3350 else if (!IS_DIR_SEPARATOR (endp[-1]))
3352 nstore[endp - startp] = DIR_SEPARATOR;
3353 nstore[endp - startp + 1] = 0;
3356 nstore[endp - startp] = 0;
3357 add_prefix (&startfile_prefixes, nstore, NULL,
3358 PREFIX_PRIORITY_LAST, 0, 1);
3361 endp = startp = endp + 1;
3368 /* Convert new-style -- options to old-style. */
3369 translate_options (&argc, (const char *const **) &argv);
3371 /* Do language-specific adjustment/addition of flags. */
3372 lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
3374 /* Scan argv twice. Here, the first time, just count how many switches
3375 there will be in their vector, and how many input files in theirs.
3376 Here we also parse the switches that cc itself uses (e.g. -v). */
3378 for (i = 1; i < argc; i++)
3380 if (! strcmp (argv[i], "-dumpspecs"))
3382 struct spec_list *sl;
3384 for (sl = specs; sl; sl = sl->next)
3385 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3386 if (link_command_spec)
3387 printf ("*link_command:\n%s\n\n", link_command_spec);
3390 else if (! strcmp (argv[i], "-dumpversion"))
3392 printf ("%s\n", spec_version);
3395 else if (! strcmp (argv[i], "-dumpmachine"))
3397 printf ("%s\n", spec_machine);
3400 else if (strcmp (argv[i], "-fversion") == 0)
3402 /* translate_options () has turned --version into -fversion. */
3403 printf (_("%s (GCC) %s\n"), programname, version_string);
3404 printf ("Copyright %s 2005 Free Software Foundation, Inc.\n",
3406 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3407 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3411 else if (strcmp (argv[i], "-fhelp") == 0)
3413 /* translate_options () has turned --help into -fhelp. */
3414 print_help_list = 1;
3416 /* We will be passing a dummy file on to the sub-processes. */
3420 /* CPP driver cannot obtain switch from cc1_options. */
3422 add_preprocessor_option ("--help", 6);
3423 add_assembler_option ("--help", 6);
3424 add_linker_option ("--help", 6);
3426 else if (strcmp (argv[i], "-ftarget-help") == 0)
3428 /* translate_options() has turned --target-help into -ftarget-help. */
3429 target_help_flag = 1;
3431 /* We will be passing a dummy file on to the sub-processes. */
3435 /* CPP driver cannot obtain switch from cc1_options. */
3437 add_preprocessor_option ("--target-help", 13);
3438 add_assembler_option ("--target-help", 13);
3439 add_linker_option ("--target-help", 13);
3441 else if (! strcmp (argv[i], "-pass-exit-codes"))
3443 pass_exit_codes = 1;
3446 else if (! strcmp (argv[i], "-print-search-dirs"))
3447 print_search_dirs = 1;
3448 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3449 print_file_name = "libgcc.a";
3450 else if (! strncmp (argv[i], "-print-file-name=", 17))
3451 print_file_name = argv[i] + 17;
3452 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3453 print_prog_name = argv[i] + 17;
3454 else if (! strcmp (argv[i], "-print-multi-lib"))
3455 print_multi_lib = 1;
3456 else if (! strcmp (argv[i], "-print-multi-directory"))
3457 print_multi_directory = 1;
3458 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3459 print_multi_os_directory = 1;
3460 else if (! strncmp (argv[i], "-Wa,", 4))
3463 /* Pass the rest of this option to the assembler. */
3465 /* Split the argument at commas. */
3467 for (j = 4; argv[i][j]; j++)
3468 if (argv[i][j] == ',')
3470 add_assembler_option (argv[i] + prev, j - prev);
3474 /* Record the part after the last comma. */
3475 add_assembler_option (argv[i] + prev, j - prev);
3477 else if (! strncmp (argv[i], "-Wp,", 4))
3480 /* Pass the rest of this option to the preprocessor. */
3482 /* Split the argument at commas. */
3484 for (j = 4; argv[i][j]; j++)
3485 if (argv[i][j] == ',')
3487 add_preprocessor_option (argv[i] + prev, j - prev);
3491 /* Record the part after the last comma. */
3492 add_preprocessor_option (argv[i] + prev, j - prev);
3494 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3495 /* The +e options to the C++ front-end. */
3497 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3500 /* Split the argument at commas. */
3501 for (j = 3; argv[i][j]; j++)
3502 n_infiles += (argv[i][j] == ',');
3504 else if (strcmp (argv[i], "-Xlinker") == 0)
3507 fatal ("argument to '-Xlinker' is missing");
3512 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3515 fatal ("argument to '-Xpreprocessor' is missing");
3517 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3519 else if (strcmp (argv[i], "-Xassembler") == 0)
3522 fatal ("argument to '-Xassembler' is missing");
3524 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3526 else if (strcmp (argv[i], "-l") == 0)
3529 fatal ("argument to '-l' is missing");
3534 else if (strncmp (argv[i], "-l", 2) == 0)
3536 else if (strcmp (argv[i], "-save-temps") == 0)
3538 save_temps_flag = 1;
3541 else if (strcmp (argv[i], "-combine") == 0)
3546 else if (strcmp (argv[i], "-specs") == 0)
3548 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3550 fatal ("argument to '-specs' is missing");
3552 user->next = (struct user_specs *) 0;
3553 user->filename = argv[i];
3554 if (user_specs_tail)
3555 user_specs_tail->next = user;
3557 user_specs_head = user;
3558 user_specs_tail = user;
3560 else if (strncmp (argv[i], "-specs=", 7) == 0)
3562 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3563 if (strlen (argv[i]) == 7)
3564 fatal ("argument to '-specs=' is missing");
3566 user->next = (struct user_specs *) 0;
3567 user->filename = argv[i] + 7;
3568 if (user_specs_tail)
3569 user_specs_tail->next = user;
3571 user_specs_head = user;
3572 user_specs_tail = user;
3574 else if (strcmp (argv[i], "-time") == 0)
3576 else if (strcmp (argv[i], "-pipe") == 0)
3578 /* -pipe has to go into the switches array as well as
3583 else if (strcmp (argv[i], "-###") == 0)
3585 /* This is similar to -v except that there is no execution
3586 of the commands and the echoed arguments are quoted. It
3587 is intended for use in shell scripts to capture the
3588 driver-generated command line. */
3589 verbose_only_flag++;
3592 else if (argv[i][0] == '-' && argv[i][1] != 0)
3594 const char *p = &argv[i][1];
3601 fatal ("'-%c' must come at the start of the command line", c);
3609 if (p[1] == 0 && i + 1 == argc)
3610 fatal ("argument to '-B' is missing");
3616 len = strlen (value);
3618 /* Catch the case where the user has forgotten to append a
3619 directory separator to the path. Note, they may be using
3620 -B to add an executable name prefix, eg "i386-elf-", in
3621 order to distinguish between multiple installations of
3622 GCC in the same directory. Hence we must check to see
3623 if appending a directory separator actually makes a
3624 valid directory name. */
3625 if (! IS_DIR_SEPARATOR (value [len - 1])
3626 && is_directory (value, "", 0))
3628 char *tmp = xmalloc (len + 2);
3629 strcpy (tmp, value);
3630 tmp[len] = DIR_SEPARATOR;
3635 /* As a kludge, if the arg is "[foo/]stageN/", just
3636 add "[foo/]include" to the include prefix. */
3639 && (IS_DIR_SEPARATOR (value[len - 8]))))
3640 && strncmp (value + len - 7, "stage", 5) == 0
3641 && ISDIGIT (value[len - 2])
3642 && (IS_DIR_SEPARATOR (value[len - 1])))
3645 add_prefix (&include_prefixes, "./", NULL,
3646 PREFIX_PRIORITY_B_OPT, 0, 0);
3649 char *string = xmalloc (len - 6);
3650 memcpy (string, value, len - 7);
3651 string[len - 7] = 0;
3652 add_prefix (&include_prefixes, string, NULL,
3653 PREFIX_PRIORITY_B_OPT, 0, 0);
3657 add_prefix (&exec_prefixes, value, NULL,
3658 PREFIX_PRIORITY_B_OPT, 0, 0);
3659 add_prefix (&startfile_prefixes, value, NULL,
3660 PREFIX_PRIORITY_B_OPT, 0, 0);
3661 add_prefix (&include_prefixes, value, NULL,
3662 PREFIX_PRIORITY_B_OPT, 0, 0);
3667 case 'v': /* Print our subcommands and print versions. */
3669 /* If they do anything other than exactly `-v', don't set
3670 verbose_flag; rather, continue on to give the error. */
3687 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3692 /* Forward scan, just in case -S or -c is specified
3699 if (argv[j][0] == '-')
3701 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3707 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3708 j += skip - (argv[j][2] != 0);
3709 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3716 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3718 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3720 argv[i] = convert_filename (argv[i], ! have_c, 0);
3727 #ifdef MODIFY_TARGET_NAME
3728 is_modify_target_name = 0;
3730 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3731 if (! strcmp (argv[i], modify_target[j].sw))
3733 char *new_name = xmalloc (strlen (modify_target[j].str)
3734 + strlen (spec_machine));
3737 int made_addition = 0;
3739 is_modify_target_name = 1;
3740 for (p = spec_machine, q = new_name; *p != 0; )
3742 if (modify_target[j].add_del == DELETE
3743 && (! strncmp (q, modify_target[j].str,
3744 strlen (modify_target[j].str))))
3745 p += strlen (modify_target[j].str);
3746 else if (modify_target[j].add_del == ADD
3747 && ! made_addition && *p == '-')
3749 for (r = modify_target[j].str; *r != 0; )
3757 spec_machine = new_name;
3760 if (is_modify_target_name)
3766 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3767 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3768 else if (WORD_SWITCH_TAKES_ARG (p))
3769 i += WORD_SWITCH_TAKES_ARG (p);
3779 if (save_temps_flag && use_pipes)
3781 /* -save-temps overrides -pipe, so that temp files are produced */
3782 if (save_temps_flag)
3783 error ("warning: -pipe ignored because -save-temps specified");
3787 /* Set up the search paths before we go looking for config files. */
3789 /* These come before the md prefixes so that we will find gcc's subcommands
3790 (such as cpp) rather than those of the host system. */
3791 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3792 as well as trying the machine and the version. */
3794 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
3795 PREFIX_PRIORITY_LAST, 1, 0);
3796 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
3797 PREFIX_PRIORITY_LAST, 2, 0);
3798 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3799 PREFIX_PRIORITY_LAST, 2, 0);
3800 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3801 PREFIX_PRIORITY_LAST, 2, 0);
3802 add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
3803 PREFIX_PRIORITY_LAST, 2, 0);
3806 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3807 PREFIX_PRIORITY_LAST, 1, 0);
3808 add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
3809 PREFIX_PRIORITY_LAST, 1, 0);
3811 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3812 dir_separator_str, NULL);
3814 /* If tooldir is relative, base it on exec_prefixes. A relative
3815 tooldir lets us move the installed tree as a unit.
3817 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3818 directories, so that we can search both the user specified directory
3819 and the standard place. */
3821 if (!IS_ABSOLUTE_PATH (tooldir_prefix))
3823 if (gcc_exec_prefix)
3825 char *gcc_exec_tooldir_prefix
3826 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3827 spec_version, dir_separator_str, tooldir_prefix, NULL);
3829 add_prefix (&exec_prefixes,
3830 concat (gcc_exec_tooldir_prefix, "bin",
3831 dir_separator_str, NULL),
3832 NULL, PREFIX_PRIORITY_LAST, 0, 0);
3833 add_prefix (&startfile_prefixes,
3834 concat (gcc_exec_tooldir_prefix, "lib",
3835 dir_separator_str, NULL),
3836 NULL, PREFIX_PRIORITY_LAST, 0, 1);
3839 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3840 dir_separator_str, spec_version,
3841 dir_separator_str, tooldir_prefix, NULL);
3844 add_prefix (&exec_prefixes,
3845 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3846 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
3847 add_prefix (&startfile_prefixes,
3848 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3849 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
3851 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3852 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3853 then consider it to relocate with the rest of the GCC installation
3854 if GCC_EXEC_PREFIX is set.
3855 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3856 if (target_system_root && gcc_exec_prefix)
3858 char *tmp_prefix = make_relative_prefix (argv[0],
3859 standard_bindir_prefix,
3860 target_system_root);
3861 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
3863 target_system_root = tmp_prefix;
3864 target_system_root_changed = 1;
3869 /* More prefixes are enabled in main, after we read the specs file
3870 and determine whether this is cross-compilation or not. */
3872 /* Then create the space for the vectors and scan again. */
3874 switches = xmalloc ((n_switches + 1) * sizeof (struct switchstr));
3875 infiles = xmalloc ((n_infiles + 1) * sizeof (struct infile));
3878 last_language_n_infiles = -1;
3880 /* This, time, copy the text of each switch and store a pointer
3881 to the copy in the vector of switches.
3882 Store all the infiles in their vector. */
3884 for (i = 1; i < argc; i++)
3886 /* Just skip the switches that were handled by the preceding loop. */
3887 #ifdef MODIFY_TARGET_NAME
3888 is_modify_target_name = 0;
3890 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3891 if (! strcmp (argv[i], modify_target[j].sw))
3892 is_modify_target_name = 1;
3894 if (is_modify_target_name)
3898 if (! strncmp (argv[i], "-Wa,", 4))
3900 else if (! strncmp (argv[i], "-Wp,", 4))
3902 else if (! strcmp (argv[i], "-pass-exit-codes"))
3904 else if (! strcmp (argv[i], "-print-search-dirs"))
3906 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3908 else if (! strncmp (argv[i], "-print-file-name=", 17))
3910 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3912 else if (! strcmp (argv[i], "-print-multi-lib"))
3914 else if (! strcmp (argv[i], "-print-multi-directory"))
3916 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3918 else if (! strcmp (argv[i], "-ftarget-help"))
3920 else if (! strcmp (argv[i], "-fhelp"))
3922 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3924 /* Compensate for the +e options to the C++ front-end;
3925 they're there simply for cfront call-compatibility. We do
3926 some magic in default_compilers to pass them down properly.
3927 Note we deliberately start at the `+' here, to avoid passing
3928 -e0 or -e1 down into the linker. */
3929 switches[n_switches].part1 = &argv[i][0];
3930 switches[n_switches].args = 0;
3931 switches[n_switches].live_cond = SWITCH_OK;
3932 switches[n_switches].validated = 0;
3935 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3938 /* Split the argument at commas. */
3940 for (j = 4; argv[i][j]; j++)
3941 if (argv[i][j] == ',')
3943 infiles[n_infiles].language = "*";
3944 infiles[n_infiles++].name
3945 = save_string (argv[i] + prev, j - prev);
3948 /* Record the part after the last comma. */
3949 infiles[n_infiles].language = "*";
3950 infiles[n_infiles++].name = argv[i] + prev;
3952 else if (strcmp (argv[i], "-Xlinker") == 0)
3954 infiles[n_infiles].language = "*";
3955 infiles[n_infiles++].name = argv[++i];
3957 /* Xassembler and Xpreprocessor were already handled in the first argv
3958 scan, so all we need to do here is ignore them and their argument. */
3959 else if (strcmp (argv[i], "-Xassembler") == 0)
3961 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3963 else if (strcmp (argv[i], "-l") == 0)
3964 { /* POSIX allows separation of -l and the lib arg;
3965 canonicalize by concatenating -l with its arg */
3966 infiles[n_infiles].language = "*";
3967 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
3969 else if (strncmp (argv[i], "-l", 2) == 0)
3971 infiles[n_infiles].language = "*";
3972 infiles[n_infiles++].name = argv[i];
3974 else if (strcmp (argv[i], "-specs") == 0)
3976 else if (strncmp (argv[i], "-specs=", 7) == 0)
3978 else if (strcmp (argv[i], "-time") == 0)
3980 else if (strcmp (argv[i], "-###") == 0)
3982 else if (argv[i][0] == '-' && argv[i][1] != 0)
3984 const char *p = &argv[i][1];
3989 if (p[1] == 0 && i + 1 == argc)
3990 fatal ("argument to '-x' is missing");
3992 spec_lang = argv[++i];
3995 if (! strcmp (spec_lang, "none"))
3996 /* Suppress the warning if -xnone comes after the last input
3997 file, because alternate command interfaces like g++ might
3998 find it useful to place -xnone after each input file. */
4001 last_language_n_infiles = n_infiles;
4004 switches[n_switches].part1 = p;
4005 /* Deal with option arguments in separate argv elements. */
4006 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4007 || WORD_SWITCH_TAKES_ARG (p))
4010 int n_args = WORD_SWITCH_TAKES_ARG (p);
4014 /* Count only the option arguments in separate argv elements. */
4015 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4017 if (i + n_args >= argc)
4018 fatal ("argument to '-%s' is missing", p);
4019 switches[n_switches].args
4020 = xmalloc ((n_args + 1) * sizeof(const char *));
4022 switches[n_switches].args[j++] = argv[++i];
4023 /* Null-terminate the vector. */
4024 switches[n_switches].args[j] = 0;
4026 else if (strchr (switches_need_spaces, c))
4028 /* On some systems, ld cannot handle some options without
4029 a space. So split the option from its argument. */
4030 char *part1 = xmalloc (2);
4034 switches[n_switches].part1 = part1;
4035 switches[n_switches].args = xmalloc (2 * sizeof (const char *));
4036 switches[n_switches].args[0] = xstrdup (p+1);
4037 switches[n_switches].args[1] = 0;
4040 switches[n_switches].args = 0;
4042 switches[n_switches].live_cond = SWITCH_OK;
4043 switches[n_switches].validated = 0;
4044 switches[n_switches].ordering = 0;
4045 /* These are always valid, since gcc.c itself understands them. */
4046 if (!strcmp (p, "save-temps")
4047 || !strcmp (p, "static-libgcc")
4048 || !strcmp (p, "shared-libgcc")
4049 || !strcmp (p, "pipe"))
4050 switches[n_switches].validated = 1;
4053 char ch = switches[n_switches].part1[0];
4055 switches[n_switches].validated = 1;
4061 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4062 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4065 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4067 perror_with_name (argv[i]);
4072 infiles[n_infiles].language = spec_lang;
4073 infiles[n_infiles++].name = argv[i];
4078 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4079 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4081 /* Ensure we only invoke each subprocess once. */
4082 if (target_help_flag || print_help_list)
4086 /* Create a dummy input file, so that we can pass --target-help on to
4087 the various sub-processes. */
4088 infiles[0].language = "c";
4089 infiles[0].name = "help-dummy";
4091 if (target_help_flag)
4093 switches[n_switches].part1 = "--target-help";
4094 switches[n_switches].args = 0;
4095 switches[n_switches].live_cond = SWITCH_OK;
4096 switches[n_switches].validated = 0;
4101 if (print_help_list)
4103 switches[n_switches].part1 = "--help";
4104 switches[n_switches].args = 0;
4105 switches[n_switches].live_cond = SWITCH_OK;
4106 switches[n_switches].validated = 0;
4112 switches[n_switches].part1 = 0;
4113 infiles[n_infiles].name = 0;
4116 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4117 and place that in the environment. */
4120 set_collect_gcc_options (void)
4125 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4127 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4128 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4131 for (i = 0; (int) i < n_switches; i++)
4133 const char *const *args;
4136 obstack_grow (&collect_obstack, " ", 1);
4140 /* Ignore elided switches. */
4141 if (switches[i].live_cond == SWITCH_IGNORE)
4144 obstack_grow (&collect_obstack, "'-", 2);
4145 q = switches[i].part1;
4146 while ((p = strchr (q, '\'')))
4148 obstack_grow (&collect_obstack, q, p - q);
4149 obstack_grow (&collect_obstack, "'\\''", 4);
4152 obstack_grow (&collect_obstack, q, strlen (q));
4153 obstack_grow (&collect_obstack, "'", 1);
4155 for (args = switches[i].args; args && *args; args++)
4157 obstack_grow (&collect_obstack, " '", 2);
4159 while ((p = strchr (q, '\'')))
4161 obstack_grow (&collect_obstack, q, p - q);
4162 obstack_grow (&collect_obstack, "'\\''", 4);
4165 obstack_grow (&collect_obstack, q, strlen (q));
4166 obstack_grow (&collect_obstack, "'", 1);
4169 obstack_grow (&collect_obstack, "\0", 1);
4170 putenv (XOBFINISH (&collect_obstack, char *));
4173 /* Process a spec string, accumulating and running commands. */
4175 /* These variables describe the input file name.
4176 input_file_number is the index on outfiles of this file,
4177 so that the output file name can be stored for later use by %o.
4178 input_basename is the start of the part of the input file
4179 sans all directory names, and basename_length is the number
4180 of characters starting there excluding the suffix .c or whatever. */
4182 static const char *input_filename;
4183 static int input_file_number;
4184 size_t input_filename_length;
4185 static int basename_length;
4186 static int suffixed_basename_length;
4187 static const char *input_basename;
4188 static const char *input_suffix;
4189 #ifndef HOST_LACKS_INODE_NUMBERS
4190 static struct stat input_stat;
4192 static int input_stat_set;
4194 /* The compiler used to process the current input file. */
4195 static struct compiler *input_file_compiler;
4197 /* These are variables used within do_spec and do_spec_1. */
4199 /* Nonzero if an arg has been started and not yet terminated
4200 (with space, tab or newline). */
4201 static int arg_going;
4203 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4204 is a temporary file name. */
4205 static int delete_this_arg;
4207 /* Nonzero means %w has been seen; the next arg to be terminated
4208 is the output file name of this compilation. */
4209 static int this_is_output_file;
4211 /* Nonzero means %s has been seen; the next arg to be terminated
4212 is the name of a library file and we should try the standard
4213 search dirs for it. */
4214 static int this_is_library_file;
4216 /* Nonzero means that the input of this command is coming from a pipe. */
4217 static int input_from_pipe;
4219 /* Nonnull means substitute this for any suffix when outputting a switches
4221 static const char *suffix_subst;
4223 /* Process the spec SPEC and run the commands specified therein.
4224 Returns 0 if the spec is successfully processed; -1 if failed. */
4227 do_spec (const char *spec)
4231 value = do_spec_2 (spec);
4233 /* Force out any unfinished command.
4234 If -pipe, this forces out the last command if it ended in `|'. */
4237 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4240 set_collect_gcc_options ();
4242 if (argbuf_index > 0)
4250 do_spec_2 (const char *spec)
4257 delete_this_arg = 0;
4258 this_is_output_file = 0;
4259 this_is_library_file = 0;
4260 input_from_pipe = 0;
4261 suffix_subst = NULL;
4263 result = do_spec_1 (spec, 0, NULL);
4265 /* End any pending argument. */
4268 obstack_1grow (&obstack, 0);
4269 string = XOBFINISH (&obstack, const char *);
4270 if (this_is_library_file)
4271 string = find_file (string);
4272 store_arg (string, delete_this_arg, this_is_output_file);
4273 if (this_is_output_file)
4274 outfiles[input_file_number] = string;
4282 /* Process the given spec string and add any new options to the end
4283 of the switches/n_switches array. */
4286 do_option_spec (const char *name, const char *spec)
4288 unsigned int i, value_count, value_len;
4289 const char *p, *q, *value;
4290 char *tmp_spec, *tmp_spec_p;
4292 if (configure_default_options[0].name == NULL)
4295 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4296 if (strcmp (configure_default_options[i].name, name) == 0)
4298 if (i == ARRAY_SIZE (configure_default_options))
4301 value = configure_default_options[i].value;
4302 value_len = strlen (value);
4304 /* Compute the size of the final spec. */
4307 while ((p = strstr (p, "%(VALUE)")) != NULL)
4313 /* Replace each %(VALUE) by the specified value. */
4314 tmp_spec = alloca (strlen (spec) + 1
4315 + value_count * (value_len - strlen ("%(VALUE)")));
4316 tmp_spec_p = tmp_spec;
4318 while ((p = strstr (q, "%(VALUE)")) != NULL)
4320 memcpy (tmp_spec_p, q, p - q);
4321 tmp_spec_p = tmp_spec_p + (p - q);
4322 memcpy (tmp_spec_p, value, value_len);
4323 tmp_spec_p += value_len;
4324 q = p + strlen ("%(VALUE)");
4326 strcpy (tmp_spec_p, q);
4328 do_self_spec (tmp_spec);
4331 /* Process the given spec string and add any new options to the end
4332 of the switches/n_switches array. */
4335 do_self_spec (const char *spec)
4338 do_spec_1 (" ", 0, NULL);
4340 if (argbuf_index > 0)
4345 n_switches += argbuf_index;
4346 switches = xrealloc (switches,
4347 sizeof (struct switchstr) * (n_switches + 1));
4349 switches[n_switches] = switches[first];
4350 for (i = 0; i < argbuf_index; i++)
4352 struct switchstr *sw;
4354 /* Each switch should start with '-'. */
4355 if (argbuf[i][0] != '-')
4356 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4358 sw = &switches[i + first];
4359 sw->part1 = &argbuf[i][1];
4361 sw->live_cond = SWITCH_OK;
4369 do_spec_path (struct prefix_list *pl, const char *option,
4370 int omit_if_relative, int separate_options,
4372 const char *dir_for_machine_suffix,
4373 const char *dir_for_no_suffix)
4375 static size_t bufsize = 0;
4376 static char *buffer;
4378 bool multilib_p = false;
4380 /* Used on systems which record the specified -L dirs
4381 and use them to search for dynamic linking. */
4382 /* Relative directories always come from -B,
4383 and it is better not to use them for searching
4384 at run time. In particular, stage1 loses. */
4385 if (omit_if_relative
4386 && !IS_ABSOLUTE_PATH (pl->prefix))
4389 /* Try subdirectory if there is one. */
4390 if (machine_suffix && dir_for_machine_suffix)
4392 if (strlen (pl->prefix) + strlen (machine_suffix)
4394 bufsize = (strlen (pl->prefix)
4395 + strlen (machine_suffix)) * 2 + 1;
4396 buffer = xrealloc (buffer, bufsize);
4397 strcpy (buffer, pl->prefix);
4398 strcat (buffer, machine_suffix);
4399 if (is_directory (buffer, dir_for_machine_suffix, 1))
4402 do_spec_1 (option, separate_options, NULL);
4403 if (separate_options)
4404 do_spec_1 (" ", 0, NULL);
4405 do_spec_1 (buffer, 1, NULL);
4406 do_spec_1 (dir_for_machine_suffix, 1, NULL);
4407 /* Make this a separate argument. */
4408 do_spec_1 (" ", 0, NULL);
4411 if (!pl->require_machine_suffix && dir_for_no_suffix)
4413 if (is_directory (pl->prefix, dir_for_no_suffix, 1))
4416 do_spec_1 (option, separate_options, NULL);
4417 if (separate_options)
4418 do_spec_1 (" ", 0, NULL);
4419 do_spec_1 (pl->prefix, 1, NULL);
4420 do_spec_1 (dir_for_no_suffix, 1, NULL);
4421 /* Make this a separate argument. */
4422 do_spec_1 (" ", 0, NULL);
4426 if (only_subdir || multilib_p)
4431 if (is_directory (pl->prefix, machine_suffix, 1))
4433 do_spec_1 (option, separate_options, NULL);
4434 if (separate_options)
4435 do_spec_1 (" ", 0, NULL);
4436 do_spec_1 (pl->prefix, 1, NULL);
4437 /* Remove slash from machine_suffix. */
4438 if (strlen (machine_suffix) >= bufsize)
4439 bufsize = strlen (machine_suffix) * 2 + 1;
4440 buffer = xrealloc (buffer, bufsize);
4441 strcpy (buffer, machine_suffix);
4442 idx = strlen (buffer);
4443 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4444 buffer[idx - 1] = 0;
4445 do_spec_1 (buffer, 1, NULL);
4446 /* Make this a separate argument. */
4447 do_spec_1 (" ", 0, NULL);
4450 if (!pl->require_machine_suffix)
4452 if (is_directory (pl->prefix, "", 1))
4454 do_spec_1 (option, separate_options, NULL);
4455 if (separate_options)
4456 do_spec_1 (" ", 0, NULL);
4457 /* Remove slash from pl->prefix. */
4458 if (strlen (pl->prefix) >= bufsize)
4459 bufsize = strlen (pl->prefix) * 2 + 1;
4460 buffer = xrealloc (buffer, bufsize);
4461 strcpy (buffer, pl->prefix);
4462 idx = strlen (buffer);
4463 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4464 buffer[idx - 1] = 0;
4465 do_spec_1 (buffer, 1, NULL);
4466 /* Make this a separate argument. */
4467 do_spec_1 (" ", 0, NULL);
4472 /* Process the sub-spec SPEC as a portion of a larger spec.
4473 This is like processing a whole spec except that we do
4474 not initialize at the beginning and we do not supply a
4475 newline by default at the end.
4476 INSWITCH nonzero means don't process %-sequences in SPEC;
4477 in this case, % is treated as an ordinary character.
4478 This is used while substituting switches.
4479 INSWITCH nonzero also causes SPC not to terminate an argument.
4481 Value is zero unless a line was finished
4482 and the command on that line reported an error. */
4485 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
4487 const char *p = spec;
4494 /* If substituting a switch, treat all chars like letters.
4495 Otherwise, NL, SPC, TAB and % are special. */
4496 switch (inswitch ? 'a' : c)
4499 /* End of line: finish any pending argument,
4500 then run the pending command if one has been started. */
4503 obstack_1grow (&obstack, 0);
4504 string = XOBFINISH (&obstack, const char *);
4505 if (this_is_library_file)
4506 string = find_file (string);
4507 store_arg (string, delete_this_arg, this_is_output_file);
4508 if (this_is_output_file)
4509 outfiles[input_file_number] = string;
4513 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4515 /* A `|' before the newline means use a pipe here,
4516 but only if -pipe was specified.
4517 Otherwise, execute now and don't pass the `|' as an arg. */
4520 input_from_pipe = 1;
4527 set_collect_gcc_options ();
4529 if (argbuf_index > 0)
4535 /* Reinitialize for a new command, and for a new argument. */
4538 delete_this_arg = 0;
4539 this_is_output_file = 0;
4540 this_is_library_file = 0;
4541 input_from_pipe = 0;
4545 /* End any pending argument. */
4548 obstack_1grow (&obstack, 0);
4549 string = XOBFINISH (&obstack, const char *);
4550 if (this_is_library_file)
4551 string = find_file (string);
4552 store_arg (string, delete_this_arg, this_is_output_file);
4553 if (this_is_output_file)
4554 outfiles[input_file_number] = string;
4558 obstack_1grow (&obstack, c);
4564 /* Space or tab ends an argument if one is pending. */
4567 obstack_1grow (&obstack, 0);
4568 string = XOBFINISH (&obstack, const char *);
4569 if (this_is_library_file)
4570 string = find_file (string);
4571 store_arg (string, delete_this_arg, this_is_output_file);
4572 if (this_is_output_file)
4573 outfiles[input_file_number] = string;
4575 /* Reinitialize for a new argument. */
4577 delete_this_arg = 0;
4578 this_is_output_file = 0;
4579 this_is_library_file = 0;
4586 fatal ("spec '%s' invalid", spec);
4589 obstack_grow (&obstack, input_basename, basename_length);
4594 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4599 delete_this_arg = 2;
4602 /* Dump out the directories specified with LIBRARY_PATH,
4603 followed by the absolute directories
4604 that we search for startfiles. */
4607 struct prefix_list *pl = startfile_prefixes.plist;
4609 for (; pl; pl = pl->next)
4611 const char *no_suffix_multilib_dir;
4613 no_suffix_multilib_dir = pl->os_multilib ? multilib_os_dir
4615 /* Do not separate options, include non-multilibbed variant. */
4616 do_spec_path (pl, "-L",
4617 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4622 0, 0, multilib_dir, no_suffix_multilib_dir);
4628 /* %efoo means report an error with `foo' as error message
4629 and don't execute any more commands for this file. */
4633 while (*p != 0 && *p != '\n')
4635 buf = alloca (p - q + 1);
4636 strncpy (buf, q, p - q);
4643 /* %nfoo means report a notice with `foo' on stderr. */
4647 while (*p != 0 && *p != '\n')
4649 buf = alloca (p - q + 1);
4650 strncpy (buf, q, p - q);
4652 notice ("%s\n", buf);
4662 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4663 defined, and it is not a directory, and it is
4664 writable, use it. Otherwise, treat this like any
4665 other temporary file. */
4667 if ((!save_temps_flag)
4668 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4669 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4671 obstack_grow (&obstack, HOST_BIT_BUCKET,
4672 strlen (HOST_BIT_BUCKET));
4673 delete_this_arg = 0;
4678 goto create_temp_file;
4682 obstack_1grow (&obstack, '-');
4683 delete_this_arg = 0;
4686 /* consume suffix */
4687 while (*p == '.' || ISALPHA ((unsigned char) *p))
4689 if (p[0] == '%' && p[1] == 'O')
4694 goto create_temp_file;
4698 /* consume suffix */
4699 while (*p == '.' || ISALPHA ((unsigned char) *p))
4701 if (p[0] == '%' && p[1] == 'O')
4706 goto create_temp_file;
4712 struct temp_name *t;
4714 const char *suffix = p;
4715 char *saved_suffix = NULL;
4717 while (*p == '.' || ISALPHA ((unsigned char) *p))
4719 suffix_length = p - suffix;
4720 if (p[0] == '%' && p[1] == 'O')
4723 /* We don't support extra suffix characters after %O. */
4724 if (*p == '.' || ISALPHA ((unsigned char) *p))
4725 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
4726 if (suffix_length == 0)
4727 suffix = TARGET_OBJECT_SUFFIX;
4731 = xmalloc (suffix_length
4732 + strlen (TARGET_OBJECT_SUFFIX));
4733 strncpy (saved_suffix, suffix, suffix_length);
4734 strcpy (saved_suffix + suffix_length,
4735 TARGET_OBJECT_SUFFIX);
4737 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4740 /* If the input_filename has the same suffix specified
4741 for the %g, %u, or %U, and -save-temps is specified,
4742 we could end up using that file as an intermediate
4743 thus clobbering the user's source file (.e.g.,
4744 gcc -save-temps foo.s would clobber foo.s with the
4745 output of cpp0). So check for this condition and
4746 generate a temp file as the intermediate. */
4748 if (save_temps_flag)
4750 temp_filename_length = basename_length + suffix_length;
4751 temp_filename = alloca (temp_filename_length + 1);
4752 strncpy ((char *) temp_filename, input_basename, basename_length);
4753 strncpy ((char *) temp_filename + basename_length, suffix,
4755 *((char *) temp_filename + temp_filename_length) = '\0';
4756 if (strcmp (temp_filename, input_filename) != 0)
4758 #ifndef HOST_LACKS_INODE_NUMBERS
4759 struct stat st_temp;
4761 /* Note, set_input() resets input_stat_set to 0. */
4762 if (input_stat_set == 0)
4764 input_stat_set = stat (input_filename, &input_stat);
4765 if (input_stat_set >= 0)
4769 /* If we have the stat for the input_filename
4770 and we can do the stat for the temp_filename
4771 then the they could still refer to the same
4772 file if st_dev/st_ino's are the same. */
4773 if (input_stat_set != 1
4774 || stat (temp_filename, &st_temp) < 0
4775 || input_stat.st_dev != st_temp.st_dev
4776 || input_stat.st_ino != st_temp.st_ino)
4778 /* Just compare canonical pathnames. */
4779 char* input_realname = lrealpath (input_filename);
4780 char* temp_realname = lrealpath (temp_filename);
4781 bool files_differ = strcmp (input_realname, temp_realname);
4782 free (input_realname);
4783 free (temp_realname);
4787 temp_filename = save_string (temp_filename,
4788 temp_filename_length + 1);
4789 obstack_grow (&obstack, temp_filename,
4790 temp_filename_length);
4792 delete_this_arg = 0;
4798 /* See if we already have an association of %g/%u/%U and
4800 for (t = temp_names; t; t = t->next)
4801 if (t->length == suffix_length
4802 && strncmp (t->suffix, suffix, suffix_length) == 0
4803 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
4806 /* Make a new association if needed. %u and %j
4808 if (t == 0 || c == 'u' || c == 'j')
4812 t = xmalloc (sizeof (struct temp_name));
4813 t->next = temp_names;
4816 t->length = suffix_length;
4819 t->suffix = saved_suffix;
4820 saved_suffix = NULL;
4823 t->suffix = save_string (suffix, suffix_length);
4824 t->unique = (c == 'u' || c == 'U' || c == 'j');
4825 temp_filename = make_temp_file (t->suffix);
4826 temp_filename_length = strlen (temp_filename);
4827 t->filename = temp_filename;
4828 t->filename_length = temp_filename_length;
4832 free (saved_suffix);
4834 obstack_grow (&obstack, t->filename, t->filename_length);
4835 delete_this_arg = 1;
4843 for (i = 0; (int) i < n_infiles; i++)
4844 if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
4845 if (infiles[i].incompiler == input_file_compiler)
4847 store_arg (infiles[i].name, 0, 0);
4848 infiles[i].compiled = true;
4853 obstack_grow (&obstack, input_filename, input_filename_length);
4860 struct prefix_list *pl = include_prefixes.plist;
4862 if (gcc_exec_prefix)
4864 do_spec_1 ("-iprefix", 1, NULL);
4865 /* Make this a separate argument. */
4866 do_spec_1 (" ", 0, NULL);
4867 do_spec_1 (gcc_exec_prefix, 1, NULL);
4868 do_spec_1 (" ", 0, NULL);
4871 if (target_system_root_changed ||
4872 (target_system_root && target_sysroot_hdrs_suffix))
4874 do_spec_1 ("-isysroot", 1, NULL);
4875 /* Make this a separate argument. */
4876 do_spec_1 (" ", 0, NULL);
4877 do_spec_1 (target_system_root, 1, NULL);
4878 if (target_sysroot_hdrs_suffix)
4879 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
4880 do_spec_1 (" ", 0, NULL);
4883 for (; pl; pl = pl->next)
4884 /* Separate options, don't include non-suffixed variant. */
4885 do_spec_path (pl, "-isystem", 0, 1, 1, "include", "include");
4891 int max = n_infiles;
4892 max += lang_specific_extra_outfiles;
4894 for (i = 0; i < max; i++)
4896 store_arg (outfiles[i], 0, 0);
4901 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
4906 this_is_library_file = 1;
4910 outfiles[input_file_number] = NULL;
4914 this_is_output_file = 1;
4919 int cur_index = argbuf_index;
4920 /* Handle the {...} following the %W. */
4922 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
4923 p = handle_braces (p + 1);
4926 /* End any pending argument. */
4929 obstack_1grow (&obstack, 0);
4930 string = XOBFINISH (&obstack, const char *);
4931 if (this_is_library_file)
4932 string = find_file (string);
4933 store_arg (string, delete_this_arg, this_is_output_file);
4934 if (this_is_output_file)
4935 outfiles[input_file_number] = string;
4938 /* If any args were output, mark the last one for deletion
4940 if (argbuf_index != cur_index)
4941 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4945 /* %x{OPTION} records OPTION for %X to output. */
4951 /* Skip past the option value and make a copy. */
4953 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
4956 string = save_string (p1 + 1, p - p1 - 2);
4958 /* See if we already recorded this option. */
4959 for (i = 0; i < n_linker_options; i++)
4960 if (! strcmp (string, linker_options[i]))
4966 /* This option is new; add it. */
4967 add_linker_option (string, strlen (string));
4971 /* Dump out the options accumulated previously using %x. */
4973 for (i = 0; i < n_linker_options; i++)
4975 do_spec_1 (linker_options[i], 1, NULL);
4976 /* Make each accumulated option a separate argument. */
4977 do_spec_1 (" ", 0, NULL);
4981 /* Dump out the options accumulated previously using -Wa,. */
4983 for (i = 0; i < n_assembler_options; i++)
4985 do_spec_1 (assembler_options[i], 1, NULL);
4986 /* Make each accumulated option a separate argument. */
4987 do_spec_1 (" ", 0, NULL);
4991 /* Dump out the options accumulated previously using -Wp,. */
4993 for (i = 0; i < n_preprocessor_options; i++)
4995 do_spec_1 (preprocessor_options[i], 1, NULL);
4996 /* Make each accumulated option a separate argument. */
4997 do_spec_1 (" ", 0, NULL);
5001 /* Here are digits and numbers that just process
5002 a certain constant string as a spec. */
5005 value = do_spec_1 (cc1_spec, 0, NULL);
5011 value = do_spec_1 (cc1plus_spec, 0, NULL);
5017 value = do_spec_1 (asm_spec, 0, NULL);
5023 value = do_spec_1 (asm_final_spec, 0, NULL);
5030 const char *const spec
5031 = (input_file_compiler->cpp_spec
5032 ? input_file_compiler->cpp_spec
5034 value = do_spec_1 (spec, 0, NULL);
5041 value = do_spec_1 (endfile_spec, 0, NULL);
5047 value = do_spec_1 (link_spec, 0, NULL);
5053 value = do_spec_1 (lib_spec, 0, NULL);
5059 value = do_spec_1 (libgcc_spec, 0, NULL);
5065 /* We assume there is a directory
5066 separator at the end of this string. */
5067 if (target_system_root)
5069 obstack_grow (&obstack, target_system_root,
5070 strlen (target_system_root));
5071 if (target_sysroot_suffix)
5072 obstack_grow (&obstack, target_sysroot_suffix,
5073 strlen (target_sysroot_suffix));
5078 value = do_spec_1 (startfile_spec, 0, NULL);
5083 /* Here we define characters other than letters and digits. */
5086 p = handle_braces (p);
5092 p = handle_spec_function (p);
5098 obstack_1grow (&obstack, '%');
5105 while (p[len] && p[len] != ' ' && p[len] != '%')
5107 suffix_subst = save_string (p - 1, len + 1);
5112 /* Henceforth ignore the option(s) matching the pattern
5117 int have_wildcard = 0;
5120 while (p[len] && p[len] != ' ' && p[len] != '\t')
5123 if (p[len-1] == '*')
5126 for (i = 0; i < n_switches; i++)
5127 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5128 && (have_wildcard || switches[i].part1[len] == '\0'))
5130 switches[i].live_cond = SWITCH_IGNORE;
5131 switches[i].validated = 1;
5139 if (soft_matched_part)
5141 do_spec_1 (soft_matched_part, 1, NULL);
5142 do_spec_1 (" ", 0, NULL);
5145 /* Catch the case where a spec string contains something like
5146 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5147 hand side of the :. */
5148 error ("spec failure: '%%*' has not been initialized by pattern match");
5151 /* Process a string found as the value of a spec given by name.
5152 This feature allows individual machine descriptions
5153 to add and use their own specs.
5154 %[...] modifies -D options the way %P does;
5155 %(...) uses the spec unmodified. */
5157 error ("warning: use of obsolete %%[ operator in specs");
5160 const char *name = p;
5161 struct spec_list *sl;
5164 /* The string after the S/P is the name of a spec that is to be
5166 while (*p && *p != ')' && *p != ']')
5169 /* See if it's in the list. */
5170 for (len = p - name, sl = specs; sl; sl = sl->next)
5171 if (sl->name_len == len && !strncmp (sl->name, name, len))
5173 name = *(sl->ptr_spec);
5175 notice ("Processing spec %c%s%c, which is '%s'\n",
5176 c, sl->name, (c == '(') ? ')' : ']', name);
5185 value = do_spec_1 (name, 0, NULL);
5191 char *x = alloca (strlen (name) * 2 + 1);
5193 const char *y = name;
5196 /* Copy all of NAME into BUF, but put __ after
5197 every -D and at the end of each arg. */
5200 if (! strncmp (y, "-D", 2))
5211 && (*y == ' ' || *y == '\t' || *y == '='
5212 || *y == '}' || *y == 0))
5225 value = do_spec_1 (buf, 0, NULL);
5231 /* Discard the closing paren or bracket. */
5238 error ("spec failure: unrecognized spec option '%c'", c);
5244 /* Backslash: treat next character as ordinary. */
5249 /* Ordinary character: put it into the current argument. */
5250 obstack_1grow (&obstack, c);
5254 /* End of string. If we are processing a spec function, we need to
5255 end any pending argument. */
5256 if (processing_spec_function && arg_going)
5258 obstack_1grow (&obstack, 0);
5259 string = XOBFINISH (&obstack, const char *);
5260 if (this_is_library_file)
5261 string = find_file (string);
5262 store_arg (string, delete_this_arg, this_is_output_file);
5263 if (this_is_output_file)
5264 outfiles[input_file_number] = string;
5271 /* Look up a spec function. */
5273 static const struct spec_function *
5274 lookup_spec_function (const char *name)
5276 static const struct spec_function * const spec_function_tables[] =
5278 static_spec_functions,
5279 lang_specific_spec_functions,
5281 const struct spec_function *sf;
5284 for (i = 0; i < ARRAY_SIZE (spec_function_tables); i++)
5286 for (sf = spec_function_tables[i]; sf->name != NULL; sf++)
5287 if (strcmp (sf->name, name) == 0)
5294 /* Evaluate a spec function. */
5297 eval_spec_function (const char *func, const char *args)
5299 const struct spec_function *sf;
5300 const char *funcval;
5302 /* Saved spec processing context. */
5303 int save_argbuf_index;
5304 int save_argbuf_length;
5305 const char **save_argbuf;
5308 int save_delete_this_arg;
5309 int save_this_is_output_file;
5310 int save_this_is_library_file;
5311 int save_input_from_pipe;
5312 const char *save_suffix_subst;
5315 sf = lookup_spec_function (func);
5317 fatal ("unknown spec function '%s'", func);
5319 /* Push the spec processing context. */
5320 save_argbuf_index = argbuf_index;
5321 save_argbuf_length = argbuf_length;
5322 save_argbuf = argbuf;
5324 save_arg_going = arg_going;
5325 save_delete_this_arg = delete_this_arg;
5326 save_this_is_output_file = this_is_output_file;
5327 save_this_is_library_file = this_is_library_file;
5328 save_input_from_pipe = input_from_pipe;
5329 save_suffix_subst = suffix_subst;
5331 /* Create a new spec processing context, and build the function
5335 if (do_spec_2 (args) < 0)
5336 fatal ("error in args to spec function '%s'", func);
5338 /* argbuf_index is an index for the next argument to be inserted, and
5339 so contains the count of the args already inserted. */
5341 funcval = (*sf->func) (argbuf_index, argbuf);
5343 /* Pop the spec processing context. */
5344 argbuf_index = save_argbuf_index;
5345 argbuf_length = save_argbuf_length;
5347 argbuf = save_argbuf;
5349 arg_going = save_arg_going;
5350 delete_this_arg = save_delete_this_arg;
5351 this_is_output_file = save_this_is_output_file;
5352 this_is_library_file = save_this_is_library_file;
5353 input_from_pipe = save_input_from_pipe;
5354 suffix_subst = save_suffix_subst;
5359 /* Handle a spec function call of the form:
5363 ARGS is processed as a spec in a separate context and split into an
5364 argument vector in the normal fashion. The function returns a string
5365 containing a spec which we then process in the caller's context, or
5366 NULL if no processing is required. */
5369 handle_spec_function (const char *p)
5372 const char *endp, *funcval;
5375 processing_spec_function++;
5377 /* Get the function name. */
5378 for (endp = p; *endp != '\0'; endp++)
5380 if (*endp == '(') /* ) */
5382 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5383 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
5384 fatal ("malformed spec function name");
5386 if (*endp != '(') /* ) */
5387 fatal ("no arguments for spec function");
5388 func = save_string (p, endp - p);
5391 /* Get the arguments. */
5392 for (count = 0; *endp != '\0'; endp++)
5401 else if (*endp == '(') /* ) */
5406 fatal ("malformed spec function arguments");
5407 args = save_string (p, endp - p);
5410 /* p now points to just past the end of the spec function expression. */
5412 funcval = eval_spec_function (func, args);
5413 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
5419 processing_spec_function--;
5424 /* Inline subroutine of handle_braces. Returns true if the current
5425 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5427 input_suffix_matches (const char *atom, const char *end_atom)
5429 /* We special case the semantics of {.s:...} and {.S:...} and their
5430 negative variants. Instead of testing the input filename suffix,
5431 we test whether the input source file is an assembler file or an
5432 assembler-with-cpp file respectively. This allows us to correctly
5433 handle the -x command line option. */
5435 if (atom + 1 == end_atom
5436 && input_file_compiler
5437 && input_file_compiler->suffix)
5440 return !strcmp (input_file_compiler->suffix, "@assembler");
5442 return !strcmp (input_file_compiler->suffix, "@assembler-with-cpp");
5445 return (input_suffix
5446 && !strncmp (input_suffix, atom, end_atom - atom)
5447 && input_suffix[end_atom - atom] == '\0');
5450 /* Inline subroutine of handle_braces. Returns true if a switch
5451 matching the atom bracketed by ATOM and END_ATOM appeared on the
5454 switch_matches (const char *atom, const char *end_atom, int starred)
5457 int len = end_atom - atom;
5458 int plen = starred ? len : -1;
5460 for (i = 0; i < n_switches; i++)
5461 if (!strncmp (switches[i].part1, atom, len)
5462 && (starred || switches[i].part1[len] == '\0')
5463 && check_live_switch (i, plen))
5469 /* Inline subroutine of handle_braces. Mark all of the switches which
5470 match ATOM (extends to END_ATOM; STARRED indicates whether there
5471 was a star after the atom) for later processing. */
5473 mark_matching_switches (const char *atom, const char *end_atom, int starred)
5476 int len = end_atom - atom;
5477 int plen = starred ? len : -1;
5479 for (i = 0; i < n_switches; i++)
5480 if (!strncmp (switches[i].part1, atom, len)
5481 && (starred || switches[i].part1[len] == '\0')
5482 && check_live_switch (i, plen))
5483 switches[i].ordering = 1;
5486 /* Inline subroutine of handle_braces. Process all the currently
5487 marked switches through give_switch, and clear the marks. */
5489 process_marked_switches (void)
5493 for (i = 0; i < n_switches; i++)
5494 if (switches[i].ordering == 1)
5496 switches[i].ordering = 0;
5501 /* Handle a %{ ... } construct. P points just inside the leading {.
5502 Returns a pointer one past the end of the brace block, or 0
5503 if we call do_spec_1 and that returns -1. */
5506 handle_braces (const char *p)
5508 const char *atom, *end_atom;
5509 const char *d_atom = NULL, *d_end_atom = NULL;
5510 const char *orig = p;
5517 bool a_must_be_last = false;
5518 bool ordered_set = false;
5519 bool disjunct_set = false;
5520 bool disj_matched = false;
5521 bool disj_starred = true;
5522 bool n_way_choice = false;
5523 bool n_way_matched = false;
5525 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5532 /* Scan one "atom" (S in the description above of %{}, possibly
5533 with !, ., or * modifiers). */
5534 a_matched = a_is_suffix = a_is_starred = a_is_negated = false;
5538 p++, a_is_negated = true;
5542 p++, a_is_suffix = true;
5545 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
5546 || *p == ',' || *p == '.' || *p == '@')
5551 p++, a_is_starred = 1;
5557 /* Substitute the switch(es) indicated by the current atom. */
5559 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
5560 || atom == end_atom)
5563 mark_matching_switches (atom, end_atom, a_is_starred);
5566 process_marked_switches ();
5570 /* Substitute some text if the current atom appears as a switch
5572 disjunct_set = true;
5576 if (atom == end_atom)
5578 if (!n_way_choice || disj_matched || *p == '|'
5579 || a_is_negated || a_is_suffix || a_is_starred)
5582 /* An empty term may appear as the last choice of an
5583 N-way choice set; it means "otherwise". */
5584 a_must_be_last = true;
5585 disj_matched = !n_way_matched;
5586 disj_starred = false;
5590 if (a_is_suffix && a_is_starred)
5594 disj_starred = false;
5596 /* Don't bother testing this atom if we already have a
5598 if (!disj_matched && !n_way_matched)
5601 a_matched = input_suffix_matches (atom, end_atom);
5603 a_matched = switch_matches (atom, end_atom, a_is_starred);
5605 if (a_matched != a_is_negated)
5607 disj_matched = true;
5609 d_end_atom = end_atom;
5616 /* Found the body, that is, the text to substitute if the
5617 current disjunction matches. */
5618 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
5619 disj_matched && !n_way_matched);
5623 /* If we have an N-way choice, reset state for the next
5627 n_way_choice = true;
5628 n_way_matched |= disj_matched;
5629 disj_matched = false;
5630 disj_starred = true;
5631 d_atom = d_end_atom = NULL;
5640 while (*p++ != '}');
5645 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
5650 /* Subroutine of handle_braces. Scan and process a brace substitution body
5651 (X in the description of %{} syntax). P points one past the colon;
5652 ATOM and END_ATOM bracket the first atom which was found to be true
5653 (present) in the current disjunction; STARRED indicates whether all
5654 the atoms in the current disjunction were starred (for syntax validation);
5655 MATCHED indicates whether the disjunction matched or not, and therefore
5656 whether or not the body is to be processed through do_spec_1 or just
5657 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5661 process_brace_body (const char *p, const char *atom, const char *end_atom,
5662 int starred, int matched)
5664 const char *body, *end_body;
5665 unsigned int nesting_level;
5666 bool have_subst = false;
5668 /* Locate the closing } or ;, honoring nested braces.
5669 Trim trailing whitespace. */
5678 if (!--nesting_level)
5681 else if (*p == ';' && nesting_level == 1)
5683 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
5685 else if (*p == '\0')
5691 while (end_body[-1] == ' ' || end_body[-1] == '\t')
5694 if (have_subst && !starred)
5699 /* Copy the substitution body to permanent storage and execute it.
5700 If have_subst is false, this is a simple matter of running the
5701 body through do_spec_1... */
5702 char *string = save_string (body, end_body - body);
5705 if (do_spec_1 (string, 0, NULL) < 0)
5710 /* ... but if have_subst is true, we have to process the
5711 body once for each matching switch, with %* set to the
5712 variant part of the switch. */
5713 unsigned int hard_match_len = end_atom - atom;
5716 for (i = 0; i < n_switches; i++)
5717 if (!strncmp (switches[i].part1, atom, hard_match_len)
5718 && check_live_switch (i, hard_match_len))
5720 if (do_spec_1 (string, 0,
5721 &switches[i].part1[hard_match_len]) < 0)
5723 /* Pass any arguments this switch has. */
5725 suffix_subst = NULL;
5733 fatal ("braced spec body '%s' is invalid", body);
5736 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5737 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5738 spec, or -1 if either exact match or %* is used.
5740 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5741 whose value does not begin with "no-" is obsoleted by the same value
5742 with the "no-", similarly for a switch with the "no-" prefix. */
5745 check_live_switch (int switchnum, int prefix_length)
5747 const char *name = switches[switchnum].part1;
5750 /* In the common case of {<at-most-one-letter>*}, a negating
5751 switch would always match, so ignore that case. We will just
5752 send the conflicting switches to the compiler phase. */
5753 if (prefix_length >= 0 && prefix_length <= 1)
5756 /* If we already processed this switch and determined if it was
5757 live or not, return our past determination. */
5758 if (switches[switchnum].live_cond != 0)
5759 return switches[switchnum].live_cond > 0;
5761 /* Now search for duplicate in a manner that depends on the name. */
5765 for (i = switchnum + 1; i < n_switches; i++)
5766 if (switches[i].part1[0] == 'O')
5768 switches[switchnum].validated = 1;
5769 switches[switchnum].live_cond = SWITCH_FALSE;
5774 case 'W': case 'f': case 'm':
5775 if (! strncmp (name + 1, "no-", 3))
5777 /* We have Xno-YYY, search for XYYY. */
5778 for (i = switchnum + 1; i < n_switches; i++)
5779 if (switches[i].part1[0] == name[0]
5780 && ! strcmp (&switches[i].part1[1], &name[4]))
5782 switches[switchnum].validated = 1;
5783 switches[switchnum].live_cond = SWITCH_FALSE;
5789 /* We have XYYY, search for Xno-YYY. */
5790 for (i = switchnum + 1; i < n_switches; i++)
5791 if (switches[i].part1[0] == name[0]
5792 && switches[i].part1[1] == 'n'
5793 && switches[i].part1[2] == 'o'
5794 && switches[i].part1[3] == '-'
5795 && !strcmp (&switches[i].part1[4], &name[1]))
5797 switches[switchnum].validated = 1;
5798 switches[switchnum].live_cond = SWITCH_FALSE;
5805 /* Otherwise the switch is live. */
5806 switches[switchnum].live_cond = SWITCH_LIVE;
5810 /* Pass a switch to the current accumulating command
5811 in the same form that we received it.
5812 SWITCHNUM identifies the switch; it is an index into
5813 the vector of switches gcc received, which is `switches'.
5814 This cannot fail since it never finishes a command line.
5816 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5819 give_switch (int switchnum, int omit_first_word)
5821 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5824 if (!omit_first_word)
5826 do_spec_1 ("-", 0, NULL);
5827 do_spec_1 (switches[switchnum].part1, 1, NULL);
5830 if (switches[switchnum].args != 0)
5833 for (p = switches[switchnum].args; *p; p++)
5835 const char *arg = *p;
5837 do_spec_1 (" ", 0, NULL);
5840 unsigned length = strlen (arg);
5843 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5844 if (arg[length] == '.')
5846 ((char *)arg)[length] = 0;
5850 do_spec_1 (arg, 1, NULL);
5852 ((char *)arg)[length] = '.';
5853 do_spec_1 (suffix_subst, 1, NULL);
5856 do_spec_1 (arg, 1, NULL);
5860 do_spec_1 (" ", 0, NULL);
5861 switches[switchnum].validated = 1;
5864 /* Search for a file named NAME trying various prefixes including the
5865 user's -B prefix and some standard ones.
5866 Return the absolute file name found. If nothing is found, return NAME. */
5869 find_file (const char *name)
5873 /* Try multilib_dir if it is defined. */
5874 if (multilib_os_dir != NULL)
5876 newname = find_a_file (&startfile_prefixes, name, R_OK, 1);
5878 /* If we don't find it in the multi library dir, then fall
5879 through and look for it in the normal places. */
5880 if (newname != NULL)
5884 newname = find_a_file (&startfile_prefixes, name, R_OK, 0);
5885 return newname ? newname : name;
5888 /* Determine whether a directory exists. If LINKER, return 0 for
5889 certain fixed names not needed by the linker. If not LINKER, it is
5890 only important to return 0 if the host machine has a small ARG_MAX
5894 is_directory (const char *path1, const char *path2, int linker)
5896 int len1 = strlen (path1);
5897 int len2 = strlen (path2);
5898 char *path = alloca (3 + len1 + len2);
5902 #ifndef SMALL_ARG_MAX
5907 /* Construct the path from the two parts. Ensure the string ends with "/.".
5908 The resulting path will be a directory even if the given path is a
5910 memcpy (path, path1, len1);
5911 memcpy (path + len1, path2, len2);
5912 cp = path + len1 + len2;
5913 if (!IS_DIR_SEPARATOR (cp[-1]))
5914 *cp++ = DIR_SEPARATOR;
5918 /* Exclude directories that the linker is known to search. */
5921 && strcmp (path, concat (dir_separator_str, "lib",
5922 dir_separator_str, ".", NULL)) == 0)
5924 && strcmp (path, concat (dir_separator_str, "usr",
5925 dir_separator_str, "lib",
5926 dir_separator_str, ".", NULL)) == 0)))
5929 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5932 /* Set up the various global variables to indicate that we're processing
5933 the input file named FILENAME. */
5936 set_input (const char *filename)
5940 input_filename = filename;
5941 input_filename_length = strlen (input_filename);
5943 input_basename = input_filename;
5944 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5945 /* Skip drive name so 'x:foo' is handled properly. */
5946 if (input_basename[1] == ':')
5947 input_basename += 2;
5949 for (p = input_basename; *p; p++)
5950 if (IS_DIR_SEPARATOR (*p))
5951 input_basename = p + 1;
5953 /* Find a suffix starting with the last period,
5954 and set basename_length to exclude that suffix. */
5955 basename_length = strlen (input_basename);
5956 suffixed_basename_length = basename_length;
5957 p = input_basename + basename_length;
5958 while (p != input_basename && *p != '.')
5960 if (*p == '.' && p != input_basename)
5962 basename_length = p - input_basename;
5963 input_suffix = p + 1;
5968 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5969 we will need to do a stat on the input_filename. The
5970 INPUT_STAT_SET signals that the stat is needed. */
5974 /* On fatal signals, delete all the temporary files. */
5977 fatal_error (int signum)
5979 signal (signum, SIG_DFL);
5980 delete_failure_queue ();
5981 delete_temp_files ();
5982 /* Get the same signal again, this time not handled,
5983 so its normal effect occurs. */
5984 kill (getpid (), signum);
5987 extern int main (int, const char **);
5990 main (int argc, const char **argv)
5994 int linker_was_run = 0;
5995 int lang_n_infiles = 0;
5996 int num_linker_inputs = 0;
5997 char *explicit_link_files;
6000 struct user_specs *uptr;
6002 p = argv[0] + strlen (argv[0]);
6003 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6007 xmalloc_set_program_name (programname);
6009 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6010 /* Perform host dependent initialization when needed. */
6011 GCC_DRIVER_HOST_INITIALIZATION;
6014 /* Unlock the stdio streams. */
6015 unlock_std_streams ();
6017 gcc_init_libintl ();
6019 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6020 signal (SIGINT, fatal_error);
6022 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6023 signal (SIGHUP, fatal_error);
6025 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6026 signal (SIGTERM, fatal_error);
6028 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6029 signal (SIGPIPE, fatal_error);
6032 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6033 receive the signal. A different setting is inheritable */
6034 signal (SIGCHLD, SIG_DFL);
6037 /* Allocate the argument vector. */
6040 obstack_init (&obstack);
6042 /* Build multilib_select, et. al from the separate lines that make up each
6043 multilib selection. */
6045 const char *const *q = multilib_raw;
6048 obstack_init (&multilib_obstack);
6049 while ((p = *q++) != (char *) 0)
6050 obstack_grow (&multilib_obstack, p, strlen (p));
6052 obstack_1grow (&multilib_obstack, 0);
6053 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6055 q = multilib_matches_raw;
6056 while ((p = *q++) != (char *) 0)
6057 obstack_grow (&multilib_obstack, p, strlen (p));
6059 obstack_1grow (&multilib_obstack, 0);
6060 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6062 q = multilib_exclusions_raw;
6063 while ((p = *q++) != (char *) 0)
6064 obstack_grow (&multilib_obstack, p, strlen (p));
6066 obstack_1grow (&multilib_obstack, 0);
6067 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6070 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6073 obstack_1grow (&multilib_obstack, ' ');
6074 obstack_grow (&multilib_obstack,
6075 multilib_defaults_raw[i],
6076 strlen (multilib_defaults_raw[i]));
6080 obstack_1grow (&multilib_obstack, 0);
6081 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6084 /* Set up to remember the pathname of gcc and any options
6085 needed for collect. We use argv[0] instead of programname because
6086 we need the complete pathname. */
6087 obstack_init (&collect_obstack);
6088 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6089 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
6090 putenv (XOBFINISH (&collect_obstack, char *));
6092 #ifdef INIT_ENVIRONMENT
6093 /* Set up any other necessary machine specific environment variables. */
6094 putenv (INIT_ENVIRONMENT);
6097 /* Make a table of what switches there are (switches, n_switches).
6098 Make a table of specified input files (infiles, n_infiles).
6099 Decode switches that are handled locally. */
6101 process_command (argc, argv);
6103 /* Initialize the vector of specs to just the default.
6104 This means one element containing 0s, as a terminator. */
6106 compilers = xmalloc (sizeof default_compilers);
6107 memcpy (compilers, default_compilers, sizeof default_compilers);
6108 n_compilers = n_default_compilers;
6110 /* Read specs from a file if there is one. */
6112 machine_suffix = concat (spec_machine, dir_separator_str,
6113 spec_version, dir_separator_str, NULL);
6114 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6116 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, 0);
6117 /* Read the specs file unless it is a default one. */
6118 if (specs_file != 0 && strcmp (specs_file, "specs"))
6119 read_specs (specs_file, TRUE);
6123 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6124 for any override of as, ld and libraries. */
6125 specs_file = alloca (strlen (standard_exec_prefix)
6126 + strlen (just_machine_suffix) + sizeof ("specs"));
6128 strcpy (specs_file, standard_exec_prefix);
6129 strcat (specs_file, just_machine_suffix);
6130 strcat (specs_file, "specs");
6131 if (access (specs_file, R_OK) == 0)
6132 read_specs (specs_file, TRUE);
6134 /* Process any configure-time defaults specified for the command line
6135 options, via OPTION_DEFAULT_SPECS. */
6136 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6137 do_option_spec (option_default_specs[i].name,
6138 option_default_specs[i].spec);
6140 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6141 of the command line. */
6143 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6144 do_self_spec (driver_self_specs[i]);
6146 /* If not cross-compiling, look for executables in the standard
6148 if (*cross_compile == '0')
6150 if (*md_exec_prefix)
6152 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6153 PREFIX_PRIORITY_LAST, 0, 0);
6157 /* Process sysroot_suffix_spec. */
6158 if (*sysroot_suffix_spec != 0
6159 && do_spec_2 (sysroot_suffix_spec) == 0)
6161 if (argbuf_index > 1)
6162 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6163 else if (argbuf_index == 1)
6164 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6167 #ifdef HAVE_LD_SYSROOT
6168 /* Pass the --sysroot option to the linker, if it supports that. If
6169 there is a sysroot_suffix_spec, it has already been processed by
6170 this point, so target_system_root really is the system root we
6172 if (target_system_root)
6174 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6175 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6176 set_spec ("link", XOBFINISH (&obstack, const char *));
6180 /* Process sysroot_hdrs_suffix_spec. */
6181 if (*sysroot_hdrs_suffix_spec != 0
6182 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6184 if (argbuf_index > 1)
6185 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6186 else if (argbuf_index == 1)
6187 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6190 /* Look for startfiles in the standard places. */
6191 if (*startfile_prefix_spec != 0
6192 && do_spec_2 (startfile_prefix_spec) == 0
6193 && do_spec_1 (" ", 0, NULL) == 0)
6196 for (ndx = 0; ndx < argbuf_index; ndx++)
6197 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
6198 PREFIX_PRIORITY_LAST, 0, 1);
6200 /* We should eventually get rid of all these and stick to
6201 startfile_prefix_spec exclusively. */
6202 else if (*cross_compile == '0' || target_system_root)
6204 if (*md_startfile_prefix)
6205 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
6206 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6208 if (*md_startfile_prefix_1)
6209 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
6210 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6212 /* If standard_startfile_prefix is relative, base it on
6213 standard_exec_prefix. This lets us move the installed tree
6214 as a unit. If GCC_EXEC_PREFIX is defined, base
6215 standard_startfile_prefix on that as well.
6217 If the prefix is relative, only search it for native compilers;
6218 otherwise we will search a directory containing host libraries. */
6219 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
6220 add_sysrooted_prefix (&startfile_prefixes,
6221 standard_startfile_prefix, "BINUTILS",
6222 PREFIX_PRIORITY_LAST, 0, 1);
6223 else if (*cross_compile == '0')
6225 if (gcc_exec_prefix)
6226 add_prefix (&startfile_prefixes,
6227 concat (gcc_exec_prefix, machine_suffix,
6228 standard_startfile_prefix, NULL),
6229 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6230 add_prefix (&startfile_prefixes,
6231 concat (standard_exec_prefix,
6233 standard_startfile_prefix, NULL),
6234 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6237 if (*standard_startfile_prefix_1)
6238 add_sysrooted_prefix (&startfile_prefixes,
6239 standard_startfile_prefix_1, "BINUTILS",
6240 PREFIX_PRIORITY_LAST, 0, 1);
6241 if (*standard_startfile_prefix_2)
6242 add_sysrooted_prefix (&startfile_prefixes,
6243 standard_startfile_prefix_2, "BINUTILS",
6244 PREFIX_PRIORITY_LAST, 0, 1);
6247 /* Process any user specified specs in the order given on the command
6249 for (uptr = user_specs_head; uptr; uptr = uptr->next)
6251 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
6253 read_specs (filename ? filename : uptr->filename, FALSE);
6256 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6257 if (gcc_exec_prefix)
6258 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
6259 spec_version, dir_separator_str, NULL);
6261 /* Now we have the specs.
6262 Set the `valid' bits for switches that match anything in any spec. */
6264 validate_all_switches ();
6266 /* Now that we have the switches and the specs, set
6267 the subdirectory based on the options. */
6268 set_multilib_dir ();
6270 /* Warn about any switches that no pass was interested in. */
6272 for (i = 0; (int) i < n_switches; i++)
6273 if (! switches[i].validated)
6274 error ("unrecognized option '-%s'", switches[i].part1);
6276 /* Obey some of the options. */
6278 if (print_search_dirs)
6280 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
6281 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
6282 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
6286 if (print_file_name)
6288 printf ("%s\n", find_file (print_file_name));
6292 if (print_prog_name)
6294 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
6295 printf ("%s\n", (newname ? newname : print_prog_name));
6299 if (print_multi_lib)
6301 print_multilib_info ();
6305 if (print_multi_directory)
6307 if (multilib_dir == NULL)
6310 printf ("%s\n", multilib_dir);
6314 if (print_multi_os_directory)
6316 if (multilib_os_dir == NULL)
6319 printf ("%s\n", multilib_os_dir);
6323 if (target_help_flag)
6325 /* Print if any target specific options. */
6327 /* We do not exit here. Instead we have created a fake input file
6328 called 'target-dummy' which needs to be compiled, and we pass this
6329 on to the various sub-processes, along with the --target-help
6333 if (print_help_list)
6339 printf (_("\nFor bug reporting instructions, please see:\n"));
6340 printf ("%s.\n", bug_report_url);
6345 /* We do not exit here. Instead we have created a fake input file
6346 called 'help-dummy' which needs to be compiled, and we pass this
6347 on the various sub-processes, along with the --help switch. */
6355 notice ("Target: %s\n", spec_machine);
6356 notice ("Configured with: %s\n", configuration_arguments);
6358 #ifdef THREAD_MODEL_SPEC
6359 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6360 but there's no point in doing all this processing just to get
6361 thread_model back. */
6362 obstack_init (&obstack);
6363 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
6364 obstack_1grow (&obstack, '\0');
6365 thrmod = XOBFINISH (&obstack, const char *);
6367 thrmod = thread_model;
6370 notice ("Thread model: %s\n", thrmod);
6372 /* compiler_version is truncated at the first space when initialized
6373 from version string, so truncate version_string at the first space
6374 before comparing. */
6375 for (n = 0; version_string[n]; n++)
6376 if (version_string[n] == ' ')
6379 if (! strncmp (version_string, compiler_version, n)
6380 && compiler_version[n] == 0)
6381 notice ("gcc version %s\n", version_string);
6383 notice ("gcc driver version %s executing gcc version %s\n",
6384 version_string, compiler_version);
6390 if (n_infiles == added_libraries)
6391 fatal ("no input files");
6393 /* Make a place to record the compiler output file names
6394 that correspond to the input files. */
6397 i += lang_specific_extra_outfiles;
6398 outfiles = xcalloc (i, sizeof (char *));
6400 /* Record which files were specified explicitly as link input. */
6402 explicit_link_files = xcalloc (1, n_infiles);
6405 combine_inputs = true;
6407 combine_inputs = false;
6409 for (i = 0; (int) i < n_infiles; i++)
6411 const char *name = infiles[i].name;
6412 struct compiler *compiler = lookup_compiler (name,
6414 infiles[i].language);
6416 if (compiler && !(compiler->combinable))
6417 combine_inputs = false;
6419 if (lang_n_infiles > 0 && compiler != input_file_compiler
6420 && infiles[i].language && infiles[i].language[0] != '*')
6421 infiles[i].incompiler = compiler;
6425 input_file_compiler = compiler;
6426 infiles[i].incompiler = compiler;
6430 /* Since there is no compiler for this input file, assume it is a
6432 explicit_link_files[i] = 1;
6433 infiles[i].incompiler = NULL;
6435 infiles[i].compiled = false;
6436 infiles[i].preprocessed = false;
6439 if (combine_flag && save_temps_flag)
6441 bool save_combine_inputs = combine_inputs;
6442 /* Must do a separate pre-processing pass for C & Objective-C files, to
6443 obtain individual .i files. */
6445 combine_inputs = false;
6446 for (i = 0; (int) i < n_infiles; i++)
6448 int this_file_error = 0;
6450 input_file_number = i;
6451 set_input (infiles[i].name);
6452 if (infiles[i].incompiler
6453 && (infiles[i].incompiler)->needs_preprocessing)
6454 input_file_compiler = infiles[i].incompiler;
6458 if (input_file_compiler)
6460 if (input_file_compiler->spec[0] == '#')
6462 error ("%s: %s compiler not installed on this system",
6463 input_filename, &input_file_compiler->spec[1]);
6464 this_file_error = 1;
6468 value = do_spec (input_file_compiler->spec);
6469 infiles[i].preprocessed = true;
6470 if (!have_o_argbuf_index)
6471 fatal ("spec '%s' is invalid", input_file_compiler->spec);
6472 infiles[i].name = argbuf[have_o_argbuf_index];
6473 infiles[i].incompiler
6474 = lookup_compiler (infiles[i].name,
6475 strlen (infiles[i].name),
6476 infiles[i].language);
6479 this_file_error = 1;
6483 if (this_file_error)
6485 delete_failure_queue ();
6489 clear_failure_queue ();
6491 combine_inputs = save_combine_inputs;
6494 for (i = 0; (int) i < n_infiles; i++)
6496 int this_file_error = 0;
6498 /* Tell do_spec what to substitute for %i. */
6500 input_file_number = i;
6501 set_input (infiles[i].name);
6503 if (infiles[i].compiled)
6506 /* Use the same thing in %o, unless cp->spec says otherwise. */
6508 outfiles[i] = input_filename;
6510 /* Figure out which compiler from the file's suffix. */
6512 if (! combine_inputs)
6514 = lookup_compiler (infiles[i].name, input_filename_length,
6515 infiles[i].language);
6517 input_file_compiler = infiles[i].incompiler;
6519 if (input_file_compiler)
6521 /* Ok, we found an applicable compiler. Run its spec. */
6523 if (input_file_compiler->spec[0] == '#')
6525 error ("%s: %s compiler not installed on this system",
6526 input_filename, &input_file_compiler->spec[1]);
6527 this_file_error = 1;
6531 value = do_spec (input_file_compiler->spec);
6532 infiles[i].compiled = true;
6534 this_file_error = 1;
6538 /* If this file's name does not contain a recognized suffix,
6539 record it as explicit linker input. */
6542 explicit_link_files[i] = 1;
6544 /* Clear the delete-on-failure queue, deleting the files in it
6545 if this compilation failed. */
6547 if (this_file_error)
6549 delete_failure_queue ();
6552 /* If this compilation succeeded, don't delete those files later. */
6553 clear_failure_queue ();
6556 /* Reset the output file name to the first input file name, for use
6557 with %b in LINK_SPEC on a target that prefers not to emit a.out
6560 set_input (infiles[0].name);
6562 if (error_count == 0)
6564 /* Make sure INPUT_FILE_NUMBER points to first available open
6566 input_file_number = n_infiles;
6567 if (lang_specific_pre_link ())
6571 /* Determine if there are any linker input files. */
6572 num_linker_inputs = 0;
6573 for (i = 0; (int) i < n_infiles; i++)
6574 if (explicit_link_files[i] || outfiles[i] != NULL)
6575 num_linker_inputs++;
6577 /* Run ld to link all the compiler output files. */
6579 if (num_linker_inputs > 0 && error_count == 0)
6581 int tmp = execution_count;
6583 /* We'll use ld if we can't find collect2. */
6584 if (! strcmp (linker_name_spec, "collect2"))
6586 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, 0);
6588 linker_name_spec = "ld";
6590 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6592 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
6593 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
6595 value = do_spec (link_command_spec);
6598 linker_was_run = (tmp != execution_count);
6601 /* If options said don't run linker,
6602 complain about input files to be given to the linker. */
6604 if (! linker_was_run && error_count == 0)
6605 for (i = 0; (int) i < n_infiles; i++)
6606 if (explicit_link_files[i])
6607 error ("%s: linker input file unused because linking not done",
6610 /* Delete some or all of the temporary files we made. */
6613 delete_failure_queue ();
6614 delete_temp_files ();
6616 if (print_help_list)
6618 printf (("\nFor bug reporting instructions, please see:\n"));
6619 printf ("%s\n", bug_report_url);
6622 return (signal_count != 0 ? 2
6623 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6627 /* Find the proper compilation spec for the file name NAME,
6628 whose length is LENGTH. LANGUAGE is the specified language,
6629 or 0 if this file is to be passed to the linker. */
6631 static struct compiler *
6632 lookup_compiler (const char *name, size_t length, const char *language)
6634 struct compiler *cp;
6636 /* If this was specified by the user to be a linker input, indicate that. */
6637 if (language != 0 && language[0] == '*')
6640 /* Otherwise, look for the language, if one is spec'd. */
6643 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6644 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6647 error ("language %s not recognized", language);
6651 /* Look for a suffix. */
6652 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6654 if (/* The suffix `-' matches only the file name `-'. */
6655 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6656 || (strlen (cp->suffix) < length
6657 /* See if the suffix matches the end of NAME. */
6658 && !strcmp (cp->suffix,
6659 name + length - strlen (cp->suffix))
6664 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6665 /* Look again, but case-insensitively this time. */
6667 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6669 if (/* The suffix `-' matches only the file name `-'. */
6670 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6671 || (strlen (cp->suffix) < length
6672 /* See if the suffix matches the end of NAME. */
6673 && ((!strcmp (cp->suffix,
6674 name + length - strlen (cp->suffix))
6675 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6676 && !strcasecmp (cp->suffix,
6677 name + length - strlen (cp->suffix)))
6683 if (cp >= compilers)
6685 if (cp->spec[0] != '@')
6686 /* A non-alias entry: return it. */
6689 /* An alias entry maps a suffix to a language.
6690 Search for the language; pass 0 for NAME and LENGTH
6691 to avoid infinite recursion if language not found. */
6692 return lookup_compiler (NULL, 0, cp->spec + 1);
6698 save_string (const char *s, int len)
6700 char *result = xmalloc (len + 1);
6702 memcpy (result, s, len);
6708 pfatal_with_name (const char *name)
6710 perror_with_name (name);
6711 delete_temp_files ();
6716 perror_with_name (const char *name)
6718 error ("%s: %s", name, xstrerror (errno));
6721 /* Output an error message and exit. */
6724 fancy_abort (const char *file, int line, const char *func)
6726 fatal ("internal gcc abort in %s, at %s:%d", func, file, line);
6729 /* Output an error message and exit. */
6732 fatal (const char *cmsgid, ...)
6736 va_start (ap, cmsgid);
6738 fprintf (stderr, "%s: ", programname);
6739 vfprintf (stderr, _(cmsgid), ap);
6741 fprintf (stderr, "\n");
6742 delete_temp_files ();
6746 /* The argument is actually c-format, not gcc-internal-format,
6747 but because functions with identical names are used through
6748 the rest of the compiler with gcc-internal-format, we just
6749 need to hope all users of these functions use the common
6750 subset between c-format and gcc-internal-format. */
6753 error (const char *gmsgid, ...)
6757 va_start (ap, gmsgid);
6758 fprintf (stderr, "%s: ", programname);
6759 vfprintf (stderr, _(gmsgid), ap);
6762 fprintf (stderr, "\n");
6766 notice (const char *cmsgid, ...)
6770 va_start (ap, cmsgid);
6771 vfprintf (stderr, _(cmsgid), ap);
6776 validate_switches_from_spec (const char *spec)
6778 const char *p = spec;
6781 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
6782 /* We have a switch spec. */
6783 p = validate_switches (p + 1);
6787 validate_all_switches (void)
6789 struct compiler *comp;
6790 struct spec_list *spec;
6792 for (comp = compilers; comp->spec; comp++)
6793 validate_switches_from_spec (comp->spec);
6795 /* Look through the linked list of specs read from the specs file. */
6796 for (spec = specs; spec; spec = spec->next)
6797 validate_switches_from_spec (*spec->ptr_spec);
6799 validate_switches_from_spec (link_command_spec);
6802 /* Look at the switch-name that comes after START
6803 and mark as valid all supplied switches that match it. */
6806 validate_switches (const char *start)
6808 const char *p = start;
6812 bool suffix = false;
6813 bool starred = false;
6815 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6828 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
6829 || *p == ',' || *p == '.' || *p == '@')
6834 starred = true, p++;
6840 /* Mark all matching switches as valid. */
6841 for (i = 0; i < n_switches; i++)
6842 if (!strncmp (switches[i].part1, atom, len)
6843 && (starred || switches[i].part1[len] == 0))
6844 switches[i].validated = 1;
6848 if (*p && (p[-1] == '|' || p[-1] == '&'))
6851 if (*p && p[-1] == ':')
6853 while (*p && *p != ';' && *p != '}')
6858 if (*p == '{' || *p == '<')
6859 p = validate_switches (p+1);
6860 else if (p[0] == 'W' && p[1] == '{')
6861 p = validate_switches (p+2);
6868 if (*p && p[-1] == ';')
6882 static struct mdswitchstr *mdswitches;
6883 static int n_mdswitches;
6885 /* Check whether a particular argument was used. The first time we
6886 canonicalize the switches to keep only the ones we care about. */
6889 used_arg (const char *p, int len)
6894 const char *replace;
6899 static struct mswitchstr *mswitches;
6900 static int n_mswitches;
6905 struct mswitchstr *matches;
6909 /* Break multilib_matches into the component strings of string
6910 and replacement string. */
6911 for (q = multilib_matches; *q != '\0'; q++)
6915 matches = alloca ((sizeof (struct mswitchstr)) * cnt);
6917 q = multilib_matches;
6926 fatal ("multilib spec '%s' is invalid", multilib_matches);
6930 matches[i].len = q - matches[i].str;
6932 matches[i].replace = ++q;
6933 while (*q != ';' && *q != '\0')
6936 goto invalid_matches;
6939 matches[i].rep_len = q - matches[i].replace;
6945 /* Now build a list of the replacement string for switches that we care
6946 about. Make sure we allocate at least one entry. This prevents
6947 xmalloc from calling fatal, and prevents us from re-executing this
6950 = xmalloc (sizeof (struct mswitchstr)
6951 * (n_mdswitches + (n_switches ? n_switches : 1)));
6952 for (i = 0; i < n_switches; i++)
6953 if (switches[i].live_cond != SWITCH_IGNORE)
6955 int xlen = strlen (switches[i].part1);
6956 for (j = 0; j < cnt; j++)
6957 if (xlen == matches[j].len
6958 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6960 mswitches[n_mswitches].str = matches[j].replace;
6961 mswitches[n_mswitches].len = matches[j].rep_len;
6962 mswitches[n_mswitches].replace = (char *) 0;
6963 mswitches[n_mswitches].rep_len = 0;
6969 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6970 on the command line nor any options mutually incompatible with
6972 for (i = 0; i < n_mdswitches; i++)
6976 for (q = multilib_options; *q != '\0'; q++)
6982 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
6983 || strchr (" /", q[mdswitches[i].len]) == NULL)
6985 while (*q != ' ' && *q != '/' && *q != '\0')
6992 if (*q != ' ' && *q != '\0')
6994 while (*r != ' ' && *r != '\0')
6997 while (*q != ' ' && *q != '/' && *q != '\0')
7000 if (used_arg (r, q - r))
7005 mswitches[n_mswitches].str = mdswitches[i].str;
7006 mswitches[n_mswitches].len = mdswitches[i].len;
7007 mswitches[n_mswitches].replace = (char *) 0;
7008 mswitches[n_mswitches].rep_len = 0;
7021 for (i = 0; i < n_mswitches; i++)
7022 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
7029 default_arg (const char *p, int len)
7033 for (i = 0; i < n_mdswitches; i++)
7034 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
7040 /* Work out the subdirectory to use based on the options. The format of
7041 multilib_select is a list of elements. Each element is a subdirectory
7042 name followed by a list of options followed by a semicolon. The format
7043 of multilib_exclusions is the same, but without the preceding
7044 directory. First gcc will check the exclusions, if none of the options
7045 beginning with an exclamation point are present, and all of the other
7046 options are present, then we will ignore this completely. Passing
7047 that, gcc will consider each multilib_select in turn using the same
7048 rules for matching the options. If a match is found, that subdirectory
7052 set_multilib_dir (void)
7055 unsigned int this_path_len;
7056 const char *this_path, *this_arg;
7057 const char *start, *end;
7059 int ok, ndfltok, first;
7062 start = multilib_defaults;
7063 while (*start == ' ' || *start == '\t')
7065 while (*start != '\0')
7068 while (*start != ' ' && *start != '\t' && *start != '\0')
7070 while (*start == ' ' || *start == '\t')
7078 mdswitches = xmalloc (sizeof (struct mdswitchstr) * n_mdswitches);
7079 for (start = multilib_defaults; *start != '\0'; start = end + 1)
7081 while (*start == ' ' || *start == '\t')
7087 for (end = start + 1;
7088 *end != ' ' && *end != '\t' && *end != '\0'; end++)
7091 obstack_grow (&multilib_obstack, start, end - start);
7092 obstack_1grow (&multilib_obstack, 0);
7093 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
7094 mdswitches[i++].len = end - start;
7101 p = multilib_exclusions;
7104 /* Ignore newlines. */
7111 /* Check the arguments. */
7118 fatal ("multilib exclusions '%s' is invalid",
7119 multilib_exclusions);
7129 while (*p != ' ' && *p != ';')
7132 goto invalid_exclusions;
7136 if (*this_arg != '!')
7144 ok = used_arg (this_arg, p - this_arg);
7159 p = multilib_select;
7162 /* Ignore newlines. */
7169 /* Get the initial path. */
7176 fatal ("multilib select '%s' is invalid",
7181 this_path_len = p - this_path;
7183 /* Check the arguments. */
7190 goto invalid_select;
7199 while (*p != ' ' && *p != ';')
7202 goto invalid_select;
7206 if (*this_arg != '!')
7214 /* If this is a default argument, we can just ignore it.
7215 This is true even if this_arg begins with '!'. Beginning
7216 with '!' does not mean that this argument is necessarily
7217 inappropriate for this library: it merely means that
7218 there is a more specific library which uses this
7219 argument. If this argument is a default, we need not
7220 consider that more specific library. */
7221 ok = used_arg (this_arg, p - this_arg);
7228 if (default_arg (this_arg, p - this_arg))
7237 if (this_path_len != 1
7238 || this_path[0] != '.')
7240 char *new_multilib_dir = xmalloc (this_path_len + 1);
7243 strncpy (new_multilib_dir, this_path, this_path_len);
7244 new_multilib_dir[this_path_len] = '\0';
7245 q = strchr (new_multilib_dir, ':');
7248 multilib_dir = new_multilib_dir;
7255 const char *q = this_path, *end = this_path + this_path_len;
7257 while (q < end && *q != ':')
7261 char *new_multilib_os_dir = xmalloc (end - q);
7262 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
7263 new_multilib_os_dir[end - q - 1] = '\0';
7264 multilib_os_dir = new_multilib_os_dir;
7272 if (multilib_dir == NULL && multilib_os_dir != NULL
7273 && strcmp (multilib_os_dir, ".") == 0)
7275 free ((char *) multilib_os_dir);
7276 multilib_os_dir = NULL;
7278 else if (multilib_dir != NULL && multilib_os_dir == NULL)
7279 multilib_os_dir = multilib_dir;
7282 /* Print out the multiple library subdirectory selection
7283 information. This prints out a series of lines. Each line looks
7284 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7285 required. Only the desired options are printed out, the negative
7286 matches. The options are print without a leading dash. There are
7287 no spaces to make it easy to use the information in the shell.
7288 Each subdirectory is printed only once. This assumes the ordering
7289 generated by the genmultilib script. Also, we leave out ones that match
7293 print_multilib_info (void)
7295 const char *p = multilib_select;
7296 const char *last_path = 0, *this_path;
7298 unsigned int last_path_len = 0;
7303 /* Ignore newlines. */
7310 /* Get the initial path. */
7317 fatal ("multilib select '%s' is invalid", multilib_select);
7323 /* When --disable-multilib was used but target defines
7324 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7325 to find multilib_os_dir, so skip them from output. */
7326 if (this_path[0] == '.' && this_path[1] == ':')
7329 /* Check for matches with the multilib_exclusions. We don't bother
7330 with the '!' in either list. If any of the exclusion rules match
7331 all of its options with the select rule, we skip it. */
7333 const char *e = multilib_exclusions;
7334 const char *this_arg;
7339 /* Ignore newlines. */
7346 /* Check the arguments. */
7355 fatal ("multilib exclusion '%s' is invalid",
7356 multilib_exclusions);
7367 while (*e != ' ' && *e != ';')
7370 goto invalid_exclusion;
7378 int len = e - this_arg;
7381 goto invalid_select;
7385 while (*q != ' ' && *q != ';')
7388 goto invalid_select;
7392 if (! strncmp (arg, this_arg,
7393 (len < q - arg) ? q - arg : len)
7394 || default_arg (this_arg, e - this_arg))
7424 /* If this is a duplicate, skip it. */
7425 skip = (last_path != 0
7426 && (unsigned int) (p - this_path) == last_path_len
7427 && ! strncmp (last_path, this_path, last_path_len));
7429 last_path = this_path;
7430 last_path_len = p - this_path;
7433 /* If this directory requires any default arguments, we can skip
7434 it. We will already have printed a directory identical to
7435 this one which does not require that default argument. */
7446 goto invalid_select;
7453 while (*q != ' ' && *q != ';')
7456 goto invalid_select;
7461 && default_arg (arg, q - arg))
7476 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
7487 goto invalid_select;
7495 use_arg = *p != '!';
7500 while (*p != ' ' && *p != ';')
7503 goto invalid_select;
7515 /* If there are extra options, print them now. */
7516 if (multilib_extra && *multilib_extra)
7518 int print_at = TRUE;
7521 for (q = multilib_extra; *q != '\0'; q++)
7542 /* if-exists built-in spec function.
7544 Checks to see if the file specified by the absolute pathname in
7545 ARGS exists. Returns that pathname if found.
7547 The usual use for this function is to check for a library file
7548 (whose name has been expanded with %s). */
7551 if_exists_spec_function (int argc, const char **argv)
7553 /* Must have only one argument. */
7554 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7560 /* if-exists-else built-in spec function.
7562 This is like if-exists, but takes an additional argument which
7563 is returned if the first argument does not exist. */
7566 if_exists_else_spec_function (int argc, const char **argv)
7568 /* Must have exactly two arguments. */
7572 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7578 /* replace-outfile built-in spec function.
7580 This looks for the first argument in the outfiles array's name and
7581 replaces it with the second argument. */
7584 replace_outfile_spec_function (int argc, const char **argv)
7587 /* Must have exactly two arguments. */
7591 for (i = 0; i < n_infiles; i++)
7593 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
7594 outfiles[i] = xstrdup (argv[1]);
7599 /* Given two version numbers, compares the two numbers.
7600 A version number must match the regular expression
7601 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7604 compare_version_strings (const char *v1, const char *v2)
7609 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7610 REG_EXTENDED | REG_NOSUB) != 0)
7612 rresult = regexec (&r, v1, 0, NULL, 0);
7613 if (rresult == REG_NOMATCH)
7614 fatal ("invalid version number `%s'", v1);
7615 else if (rresult != 0)
7617 rresult = regexec (&r, v2, 0, NULL, 0);
7618 if (rresult == REG_NOMATCH)
7619 fatal ("invalid version number `%s'", v2);
7620 else if (rresult != 0)
7623 return strverscmp (v1, v2);
7627 /* version_compare built-in spec function.
7629 This takes an argument of the following form:
7631 <comparison-op> <arg1> [<arg2>] <switch> <result>
7633 and produces "result" if the comparison evaluates to true,
7634 and nothing if it doesn't.
7636 The supported <comparison-op> values are:
7638 >= true if switch is a later (or same) version than arg1
7640 < true if switch is an earlier version than arg1
7642 >< true if switch is arg1 or later, and earlier than arg2
7643 <> true if switch is earlier than arg1 or is arg2 or later
7645 If the switch is not present, the condition is false unless
7646 the first character of the <comparison-op> is '!'.
7649 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7650 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7653 version_compare_spec_function (int argc, const char **argv)
7657 const char *switch_value = NULL;
7663 if (argv[0][0] == '\0')
7665 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
7667 if (argc != nargs + 3)
7670 switch_len = strlen (argv[nargs + 1]);
7671 for (i = 0; i < n_switches; i++)
7672 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
7673 && check_live_switch (i, switch_len))
7674 switch_value = switches[i].part1 + switch_len;
7676 if (switch_value == NULL)
7680 comp1 = compare_version_strings (switch_value, argv[1]);
7682 comp2 = compare_version_strings (switch_value, argv[2]);
7684 comp2 = -1; /* This value unused. */
7687 switch (argv[0][0] << 8 | argv[0][1])
7689 case '>' << 8 | '=':
7690 result = comp1 >= 0;
7692 case '!' << 8 | '<':
7693 result = comp1 >= 0 || switch_value == NULL;
7698 case '!' << 8 | '>':
7699 result = comp1 < 0 || switch_value == NULL;
7701 case '>' << 8 | '<':
7702 result = comp1 >= 0 && comp2 < 0;
7704 case '<' << 8 | '>':
7705 result = comp1 < 0 || comp2 >= 0;
7714 return argv[nargs + 2];