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 "[.0-9A-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\
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|fstack-protector-all:-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 {"--sysroot", "--sysroot=", "aj"},
1124 {"--time", "-time", 0},
1125 {"--trace-includes", "-H", 0},
1126 {"--traditional", "-traditional", 0},
1127 {"--traditional-cpp", "-traditional-cpp", 0},
1128 {"--trigraphs", "-trigraphs", 0},
1129 {"--undefine-macro", "-U", "aj"},
1130 {"--user-dependencies", "-MM", 0},
1131 {"--verbose", "-v", 0},
1132 {"--warn-", "-W", "*j"},
1133 {"--write-dependencies", "-MD", 0},
1134 {"--write-user-dependencies", "-MMD", 0},
1139 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1140 static const struct {
1141 const char *const option_found;
1142 const char *const replacements;
1143 } target_option_translations[] =
1145 TARGET_OPTION_TRANSLATE_TABLE,
1150 /* Translate the options described by *ARGCP and *ARGVP.
1151 Make a new vector and store it back in *ARGVP,
1152 and store its length in *ARGVC. */
1155 translate_options (int *argcp, const char *const **argvp)
1159 const char *const *argv = *argvp;
1160 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1161 const char **newv = xmalloc (newvsize);
1165 newv[newindex++] = argv[i++];
1169 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1173 target_option_translations[tott_idx].option_found;
1176 if (strcmp (target_option_translations[tott_idx].option_found,
1183 for (sp = target_option_translations[tott_idx].replacements;
1190 newvsize += spaces * sizeof (const char *);
1191 newv = xrealloc (newv, newvsize);
1193 sp = target_option_translations[tott_idx].replacements;
1202 newv[newindex++] = np;
1203 while (*np != ' ' && *np)
1214 if (target_option_translations[tott_idx].option_found)
1218 /* Translate -- options. */
1219 if (argv[i][0] == '-' && argv[i][1] == '-')
1222 /* Find a mapping that applies to this option. */
1223 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1225 size_t optlen = strlen (option_map[j].name);
1226 size_t arglen = strlen (argv[i]);
1227 size_t complen = arglen > optlen ? optlen : arglen;
1228 const char *arginfo = option_map[j].arg_info;
1233 if (!strncmp (argv[i], option_map[j].name, complen))
1235 const char *arg = 0;
1237 if (arglen < optlen)
1240 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1241 if (strlen (option_map[k].name) >= arglen
1242 && !strncmp (argv[i], option_map[k].name, arglen))
1244 error ("ambiguous abbreviation %s", argv[i]);
1248 if (k != ARRAY_SIZE (option_map))
1252 if (arglen > optlen)
1254 /* If the option has an argument, accept that. */
1255 if (argv[i][optlen] == '=')
1256 arg = argv[i] + optlen + 1;
1258 /* If this mapping requires extra text at end of name,
1259 accept that as "argument". */
1260 else if (strchr (arginfo, '*') != 0)
1261 arg = argv[i] + optlen;
1263 /* Otherwise, extra text at end means mismatch.
1264 Try other mappings. */
1269 else if (strchr (arginfo, '*') != 0)
1271 error ("incomplete '%s' option", option_map[j].name);
1275 /* Handle arguments. */
1276 if (strchr (arginfo, 'a') != 0)
1282 error ("missing argument to '%s' option",
1283 option_map[j].name);
1290 else if (strchr (arginfo, '*') != 0)
1292 else if (strchr (arginfo, 'o') == 0)
1295 error ("extraneous argument to '%s' option",
1296 option_map[j].name);
1300 /* Store the translation as one argv elt or as two. */
1301 if (arg != 0 && strchr (arginfo, 'j') != 0)
1302 newv[newindex++] = concat (option_map[j].equivalent, arg,
1306 newv[newindex++] = option_map[j].equivalent;
1307 newv[newindex++] = arg;
1310 newv[newindex++] = option_map[j].equivalent;
1318 /* Handle old-fashioned options--just copy them through,
1319 with their arguments. */
1320 else if (argv[i][0] == '-')
1322 const char *p = argv[i] + 1;
1326 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1327 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1328 else if (WORD_SWITCH_TAKES_ARG (p))
1329 nskip += WORD_SWITCH_TAKES_ARG (p);
1330 else if ((c == 'B' || c == 'b' || c == 'x')
1333 else if (! strcmp (p, "Xlinker"))
1335 else if (! strcmp (p, "Xpreprocessor"))
1337 else if (! strcmp (p, "Xassembler"))
1340 /* Watch out for an option at the end of the command line that
1341 is missing arguments, and avoid skipping past the end of the
1343 if (nskip + i > argc)
1348 newv[newindex++] = argv[i++];
1353 /* Ordinary operands, or +e options. */
1354 newv[newindex++] = argv[i++];
1364 skip_whitespace (char *p)
1368 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1369 be considered whitespace. */
1370 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1372 else if (*p == '\n' || *p == ' ' || *p == '\t')
1386 /* Structures to keep track of prefixes to try when looking for files. */
1390 const char *prefix; /* String to prepend to the path. */
1391 struct prefix_list *next; /* Next in linked list. */
1392 int require_machine_suffix; /* Don't use without machine_suffix. */
1393 /* 2 means try both machine_suffix and just_machine_suffix. */
1394 int priority; /* Sort key - priority within list. */
1395 int os_multilib; /* 1 if OS multilib scheme should be used,
1396 0 for GCC multilib scheme. */
1401 struct prefix_list *plist; /* List of prefixes to try */
1402 int max_len; /* Max length of a prefix in PLIST */
1403 const char *name; /* Name of this list (used in config stuff) */
1406 /* List of prefixes to try when looking for executables. */
1408 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1410 /* List of prefixes to try when looking for startup (crt0) files. */
1412 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1414 /* List of prefixes to try when looking for include files. */
1416 static struct path_prefix include_prefixes = { 0, 0, "include" };
1418 /* Suffix to attach to directories searched for commands.
1419 This looks like `MACHINE/VERSION/'. */
1421 static const char *machine_suffix = 0;
1423 /* Suffix to attach to directories searched for commands.
1424 This is just `MACHINE/'. */
1426 static const char *just_machine_suffix = 0;
1428 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1430 static const char *gcc_exec_prefix;
1432 /* Adjusted value of standard_libexec_prefix. */
1434 static const char *gcc_libexec_prefix;
1436 /* Default prefixes to attach to command names. */
1438 #ifndef STANDARD_STARTFILE_PREFIX_1
1439 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1441 #ifndef STANDARD_STARTFILE_PREFIX_2
1442 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1445 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1446 #undef MD_EXEC_PREFIX
1447 #undef MD_STARTFILE_PREFIX
1448 #undef MD_STARTFILE_PREFIX_1
1451 /* If no prefixes defined, use the null string, which will disable them. */
1452 #ifndef MD_EXEC_PREFIX
1453 #define MD_EXEC_PREFIX ""
1455 #ifndef MD_STARTFILE_PREFIX
1456 #define MD_STARTFILE_PREFIX ""
1458 #ifndef MD_STARTFILE_PREFIX_1
1459 #define MD_STARTFILE_PREFIX_1 ""
1462 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1463 static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
1464 static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
1465 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1467 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1468 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1469 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1470 static const char *const standard_startfile_prefix_1
1471 = STANDARD_STARTFILE_PREFIX_1;
1472 static const char *const standard_startfile_prefix_2
1473 = STANDARD_STARTFILE_PREFIX_2;
1475 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1476 static const char *tooldir_prefix;
1478 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1480 static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1482 /* Subdirectory to use for locating libraries. Set by
1483 set_multilib_dir based on the compilation options. */
1485 static const char *multilib_dir;
1487 /* Subdirectory to use for locating libraries in OS conventions. Set by
1488 set_multilib_dir based on the compilation options. */
1490 static const char *multilib_os_dir;
1492 /* Structure to keep track of the specs that have been defined so far.
1493 These are accessed using %(specname) or %[specname] in a compiler
1498 /* The following 2 fields must be first */
1499 /* to allow EXTRA_SPECS to be initialized */
1500 const char *name; /* name of the spec. */
1501 const char *ptr; /* available ptr if no static pointer */
1503 /* The following fields are not initialized */
1504 /* by EXTRA_SPECS */
1505 const char **ptr_spec; /* pointer to the spec itself. */
1506 struct spec_list *next; /* Next spec in linked list. */
1507 int name_len; /* length of the name */
1508 int alloc_p; /* whether string was allocated */
1511 #define INIT_STATIC_SPEC(NAME,PTR) \
1512 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1514 /* List of statically defined specs. */
1515 static struct spec_list static_specs[] =
1517 INIT_STATIC_SPEC ("asm", &asm_spec),
1518 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1519 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1520 INIT_STATIC_SPEC ("asm_options", &asm_options),
1521 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1522 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1523 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1524 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1525 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1526 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1527 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1528 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1529 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1530 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1531 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1532 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1533 INIT_STATIC_SPEC ("link", &link_spec),
1534 INIT_STATIC_SPEC ("lib", &lib_spec),
1535 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1536 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1537 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1538 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1539 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1540 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1541 INIT_STATIC_SPEC ("version", &compiler_version),
1542 INIT_STATIC_SPEC ("multilib", &multilib_select),
1543 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1544 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1545 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1546 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1547 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1548 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1549 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1550 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1551 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1552 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1553 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1554 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1555 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1556 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1559 #ifdef EXTRA_SPECS /* additional specs needed */
1560 /* Structure to keep track of just the first two args of a spec_list.
1561 That is all that the EXTRA_SPECS macro gives us. */
1564 const char *const name;
1565 const char *const ptr;
1568 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1569 static struct spec_list *extra_specs = (struct spec_list *) 0;
1572 /* List of dynamically allocates specs that have been defined so far. */
1574 static struct spec_list *specs = (struct spec_list *) 0;
1576 /* List of static spec functions. */
1578 static const struct spec_function static_spec_functions[] =
1580 { "if-exists", if_exists_spec_function },
1581 { "if-exists-else", if_exists_else_spec_function },
1582 { "replace-outfile", replace_outfile_spec_function },
1583 { "version-compare", version_compare_spec_function },
1587 static int processing_spec_function;
1589 /* Add appropriate libgcc specs to OBSTACK, taking into account
1590 various permutations of -shared-libgcc, -shared, and such. */
1592 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1594 #ifndef USE_LD_AS_NEEDED
1595 #define USE_LD_AS_NEEDED 0
1599 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1600 const char *static_name, const char *eh_name)
1604 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name,
1605 "}%{!static:%{!static-libgcc:",
1606 #if USE_LD_AS_NEEDED
1607 "%{!shared-libgcc:", static_name,
1608 " --as-needed ", shared_name, " --no-as-needed}"
1609 "%{shared-libgcc:", shared_name, "%{!shared: ", static_name,
1612 "%{!shared:%{!shared-libgcc:", static_name, " ",
1613 eh_name, "}%{shared-libgcc:", shared_name, " ",
1614 static_name, "}}%{shared:",
1616 "%{shared-libgcc:", shared_name,
1617 "}%{!shared-libgcc:", static_name, "}",
1624 obstack_grow (obstack, buf, strlen (buf));
1627 #endif /* ENABLE_SHARED_LIBGCC */
1629 /* Initialize the specs lookup routines. */
1634 struct spec_list *next = (struct spec_list *) 0;
1635 struct spec_list *sl = (struct spec_list *) 0;
1639 return; /* Already initialized. */
1642 notice ("Using built-in specs.\n");
1645 extra_specs = xcalloc (sizeof (struct spec_list),
1646 ARRAY_SIZE (extra_specs_1));
1648 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1650 sl = &extra_specs[i];
1651 sl->name = extra_specs_1[i].name;
1652 sl->ptr = extra_specs_1[i].ptr;
1654 sl->name_len = strlen (sl->name);
1655 sl->ptr_spec = &sl->ptr;
1660 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1661 on ?: in file-scope variable initializations. */
1662 asm_debug = ASM_DEBUG_SPEC;
1664 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1666 sl = &static_specs[i];
1671 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1672 /* ??? If neither -shared-libgcc nor --static-libgcc was
1673 seen, then we should be making an educated guess. Some proposed
1674 heuristics for ELF include:
1676 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1677 program will be doing dynamic loading, which will likely
1678 need the shared libgcc.
1680 (2) If "-ldl", then it's also a fair bet that we're doing
1683 (3) For each ET_DYN we're linking against (either through -lfoo
1684 or /some/path/foo.so), check to see whether it or one of
1685 its dependencies depends on a shared libgcc.
1689 If the runtime is fixed to look for program headers instead
1690 of calling __register_frame_info at all, for each object,
1691 use the shared libgcc if any EH symbol referenced.
1693 If crtstuff is fixed to not invoke __register_frame_info
1694 automatically, for each object, use the shared libgcc if
1695 any non-empty unwind section found.
1697 Doing any of this probably requires invoking an external program to
1698 do the actual object file scanning. */
1700 const char *p = libgcc_spec;
1703 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1704 when given the proper command line arguments. */
1707 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1709 init_gcc_specs (&obstack,
1711 #ifdef USE_LIBUNWIND_EXCEPTIONS
1717 #ifdef USE_LIBUNWIND_EXCEPTIONS
1718 # ifdef HAVE_LD_STATIC_DYNAMIC
1719 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1729 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1731 /* Ug. We don't know shared library extensions. Hope that
1732 systems that use this form don't do shared libraries. */
1733 init_gcc_specs (&obstack,
1737 #ifdef USE_LIBUNWIND_EXCEPTIONS
1746 obstack_1grow (&obstack, *p);
1747 in_sep = (*p == ' ');
1752 obstack_1grow (&obstack, '\0');
1753 libgcc_spec = XOBFINISH (&obstack, const char *);
1756 #ifdef USE_AS_TRADITIONAL_FORMAT
1757 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1759 static const char tf[] = "--traditional-format ";
1760 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1761 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1762 asm_spec = XOBFINISH (&obstack, const char *);
1766 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1767 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1768 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1769 link_spec = XOBFINISH (&obstack, const char *);
1775 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1776 removed; If the spec starts with a + then SPEC is added to the end of the
1780 set_spec (const char *name, const char *spec)
1782 struct spec_list *sl;
1783 const char *old_spec;
1784 int name_len = strlen (name);
1787 /* If this is the first call, initialize the statically allocated specs. */
1790 struct spec_list *next = (struct spec_list *) 0;
1791 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1793 sl = &static_specs[i];
1800 /* See if the spec already exists. */
1801 for (sl = specs; sl; sl = sl->next)
1802 if (name_len == sl->name_len && !strcmp (sl->name, name))
1807 /* Not found - make it. */
1808 sl = xmalloc (sizeof (struct spec_list));
1809 sl->name = xstrdup (name);
1810 sl->name_len = name_len;
1811 sl->ptr_spec = &sl->ptr;
1813 *(sl->ptr_spec) = "";
1818 old_spec = *(sl->ptr_spec);
1819 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1820 ? concat (old_spec, spec + 1, NULL)
1825 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1828 /* Free the old spec. */
1829 if (old_spec && sl->alloc_p)
1830 free ((void *) old_spec);
1835 /* Accumulate a command (program name and args), and run it. */
1837 /* Vector of pointers to arguments in the current line of specifications. */
1839 static const char **argbuf;
1841 /* Number of elements allocated in argbuf. */
1843 static int argbuf_length;
1845 /* Number of elements in argbuf currently in use (containing args). */
1847 static int argbuf_index;
1849 /* Position in the argbuf array containing the name of the output file
1850 (the value associated with the "-o" flag). */
1852 static int have_o_argbuf_index = 0;
1854 /* Were the options -c or -S passed. */
1855 static int have_c = 0;
1857 /* Was the option -o passed. */
1858 static int have_o = 0;
1860 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1861 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1864 static struct temp_name {
1865 const char *suffix; /* suffix associated with the code. */
1866 int length; /* strlen (suffix). */
1867 int unique; /* Indicates whether %g or %u/%U was used. */
1868 const char *filename; /* associated filename. */
1869 int filename_length; /* strlen (filename). */
1870 struct temp_name *next;
1873 /* Number of commands executed so far. */
1875 static int execution_count;
1877 /* Number of commands that exited with a signal. */
1879 static int signal_count;
1881 /* Name with which this program was invoked. */
1883 static const char *programname;
1885 /* Allocate the argument vector. */
1891 argbuf = xmalloc (argbuf_length * sizeof (const char *));
1894 /* Clear out the vector of arguments (after a command is executed). */
1902 /* Add one argument to the vector at the end.
1903 This is done when a space is seen or at the end of the line.
1904 If DELETE_ALWAYS is nonzero, the arg is a filename
1905 and the file should be deleted eventually.
1906 If DELETE_FAILURE is nonzero, the arg is a filename
1907 and the file should be deleted if this compilation fails. */
1910 store_arg (const char *arg, int delete_always, int delete_failure)
1912 if (argbuf_index + 1 == argbuf_length)
1913 argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
1915 argbuf[argbuf_index++] = arg;
1916 argbuf[argbuf_index] = 0;
1918 if (strcmp (arg, "-o") == 0)
1919 have_o_argbuf_index = argbuf_index;
1920 if (delete_always || delete_failure)
1921 record_temp_file (arg, delete_always, delete_failure);
1924 /* Load specs from a file name named FILENAME, replacing occurrences of
1925 various different types of line-endings, \r\n, \n\r and just \r, with
1929 load_specs (const char *filename)
1933 struct stat statbuf;
1940 notice ("Reading specs from %s\n", filename);
1942 /* Open and stat the file. */
1943 desc = open (filename, O_RDONLY, 0);
1945 pfatal_with_name (filename);
1946 if (stat (filename, &statbuf) < 0)
1947 pfatal_with_name (filename);
1949 /* Read contents of file into BUFFER. */
1950 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1951 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1953 pfatal_with_name (filename);
1954 buffer[readlen] = 0;
1957 specs = xmalloc (readlen + 1);
1959 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1965 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1967 else if (*(buffer_p + 1) == '\n') /* \r\n */
1981 /* Read compilation specs from a file named FILENAME,
1982 replacing the default ones.
1984 A suffix which starts with `*' is a definition for
1985 one of the machine-specific sub-specs. The "suffix" should be
1986 *asm, *cc1, *cpp, *link, *startfile, etc.
1987 The corresponding spec is stored in asm_spec, etc.,
1988 rather than in the `compilers' vector.
1990 Anything invalid in the file is a fatal error. */
1993 read_specs (const char *filename, int main_p)
1998 buffer = load_specs (filename);
2000 /* Scan BUFFER for specs, putting them in the vector. */
2006 char *in, *out, *p1, *p2, *p3;
2008 /* Advance P in BUFFER to the next nonblank nocomment line. */
2009 p = skip_whitespace (p);
2013 /* Is this a special command that starts with '%'? */
2014 /* Don't allow this for the main specs file, since it would
2015 encourage people to overwrite it. */
2016 if (*p == '%' && !main_p)
2019 while (*p && *p != '\n')
2025 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2026 && (p1[sizeof "%include" - 1] == ' '
2027 || p1[sizeof "%include" - 1] == '\t'))
2031 p1 += sizeof ("%include");
2032 while (*p1 == ' ' || *p1 == '\t')
2035 if (*p1++ != '<' || p[-2] != '>')
2036 fatal ("specs %%include syntax malformed after %ld characters",
2037 (long) (p1 - buffer + 1));
2040 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0);
2041 read_specs (new_filename ? new_filename : p1, FALSE);
2044 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2045 && (p1[sizeof "%include_noerr" - 1] == ' '
2046 || p1[sizeof "%include_noerr" - 1] == '\t'))
2050 p1 += sizeof "%include_noerr";
2051 while (*p1 == ' ' || *p1 == '\t')
2054 if (*p1++ != '<' || p[-2] != '>')
2055 fatal ("specs %%include syntax malformed after %ld characters",
2056 (long) (p1 - buffer + 1));
2059 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0);
2061 read_specs (new_filename, FALSE);
2062 else if (verbose_flag)
2063 notice ("could not find specs file %s\n", p1);
2066 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2067 && (p1[sizeof "%rename" - 1] == ' '
2068 || p1[sizeof "%rename" - 1] == '\t'))
2071 struct spec_list *sl;
2072 struct spec_list *newsl;
2074 /* Get original name. */
2075 p1 += sizeof "%rename";
2076 while (*p1 == ' ' || *p1 == '\t')
2079 if (! ISALPHA ((unsigned char) *p1))
2080 fatal ("specs %%rename syntax malformed after %ld characters",
2081 (long) (p1 - buffer));
2084 while (*p2 && !ISSPACE ((unsigned char) *p2))
2087 if (*p2 != ' ' && *p2 != '\t')
2088 fatal ("specs %%rename syntax malformed after %ld characters",
2089 (long) (p2 - buffer));
2093 while (*p2 == ' ' || *p2 == '\t')
2096 if (! ISALPHA ((unsigned char) *p2))
2097 fatal ("specs %%rename syntax malformed after %ld characters",
2098 (long) (p2 - buffer));
2100 /* Get new spec name. */
2102 while (*p3 && !ISSPACE ((unsigned char) *p3))
2106 fatal ("specs %%rename syntax malformed after %ld characters",
2107 (long) (p3 - buffer));
2110 for (sl = specs; sl; sl = sl->next)
2111 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2115 fatal ("specs %s spec was not found to be renamed", p1);
2117 if (strcmp (p1, p2) == 0)
2120 for (newsl = specs; newsl; newsl = newsl->next)
2121 if (strcmp (newsl->name, p2) == 0)
2122 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2127 notice ("rename spec %s to %s\n", p1, p2);
2129 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2133 set_spec (p2, *(sl->ptr_spec));
2135 free ((void *) *(sl->ptr_spec));
2137 *(sl->ptr_spec) = "";
2142 fatal ("specs unknown %% command after %ld characters",
2143 (long) (p1 - buffer));
2146 /* Find the colon that should end the suffix. */
2148 while (*p1 && *p1 != ':' && *p1 != '\n')
2151 /* The colon shouldn't be missing. */
2153 fatal ("specs file malformed after %ld characters",
2154 (long) (p1 - buffer));
2156 /* Skip back over trailing whitespace. */
2158 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2161 /* Copy the suffix to a string. */
2162 suffix = save_string (p, p2 - p);
2163 /* Find the next line. */
2164 p = skip_whitespace (p1 + 1);
2166 fatal ("specs file malformed after %ld characters",
2167 (long) (p - buffer));
2170 /* Find next blank line or end of string. */
2171 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2174 /* Specs end at the blank line and do not include the newline. */
2175 spec = save_string (p, p1 - p);
2178 /* Delete backslash-newline sequences from the spec. */
2183 if (in[0] == '\\' && in[1] == '\n')
2185 else if (in[0] == '#')
2186 while (*in && *in != '\n')
2194 if (suffix[0] == '*')
2196 if (! strcmp (suffix, "*link_command"))
2197 link_command_spec = spec;
2199 set_spec (suffix + 1, spec);
2203 /* Add this pair to the vector. */
2205 = xrealloc (compilers,
2206 (n_compilers + 2) * sizeof (struct compiler));
2208 compilers[n_compilers].suffix = suffix;
2209 compilers[n_compilers].spec = spec;
2211 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2215 link_command_spec = spec;
2218 if (link_command_spec == 0)
2219 fatal ("spec file has no spec for linking");
2222 /* Record the names of temporary files we tell compilers to write,
2223 and delete them at the end of the run. */
2225 /* This is the common prefix we use to make temp file names.
2226 It is chosen once for each run of this program.
2227 It is substituted into a spec by %g or %j.
2228 Thus, all temp file names contain this prefix.
2229 In practice, all temp file names start with this prefix.
2231 This prefix comes from the envvar TMPDIR if it is defined;
2232 otherwise, from the P_tmpdir macro if that is defined;
2233 otherwise, in /usr/tmp or /tmp;
2234 or finally the current directory if all else fails. */
2236 static const char *temp_filename;
2238 /* Length of the prefix. */
2240 static int temp_filename_length;
2242 /* Define the list of temporary files to delete. */
2247 struct temp_file *next;
2250 /* Queue of files to delete on success or failure of compilation. */
2251 static struct temp_file *always_delete_queue;
2252 /* Queue of files to delete on failure of compilation. */
2253 static struct temp_file *failure_delete_queue;
2255 /* Record FILENAME as a file to be deleted automatically.
2256 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2257 otherwise delete it in any case.
2258 FAIL_DELETE nonzero means delete it if a compilation step fails;
2259 otherwise delete it in any case. */
2262 record_temp_file (const char *filename, int always_delete, int fail_delete)
2264 char *const name = xstrdup (filename);
2268 struct temp_file *temp;
2269 for (temp = always_delete_queue; temp; temp = temp->next)
2270 if (! strcmp (name, temp->name))
2273 temp = xmalloc (sizeof (struct temp_file));
2274 temp->next = always_delete_queue;
2276 always_delete_queue = temp;
2283 struct temp_file *temp;
2284 for (temp = failure_delete_queue; temp; temp = temp->next)
2285 if (! strcmp (name, temp->name))
2288 temp = xmalloc (sizeof (struct temp_file));
2289 temp->next = failure_delete_queue;
2291 failure_delete_queue = temp;
2297 /* Delete all the temporary files whose names we previously recorded. */
2299 #ifndef DELETE_IF_ORDINARY
2300 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2303 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2304 if (unlink (NAME) < 0) \
2306 perror_with_name (NAME); \
2311 delete_if_ordinary (const char *name)
2317 printf ("Delete %s? (y or n) ", name);
2321 while ((c = getchar ()) != '\n' && c != EOF)
2324 if (i == 'y' || i == 'Y')
2326 DELETE_IF_ORDINARY (name, st, verbose_flag);
2330 delete_temp_files (void)
2332 struct temp_file *temp;
2334 for (temp = always_delete_queue; temp; temp = temp->next)
2335 delete_if_ordinary (temp->name);
2336 always_delete_queue = 0;
2339 /* Delete all the files to be deleted on error. */
2342 delete_failure_queue (void)
2344 struct temp_file *temp;
2346 for (temp = failure_delete_queue; temp; temp = temp->next)
2347 delete_if_ordinary (temp->name);
2351 clear_failure_queue (void)
2353 failure_delete_queue = 0;
2356 /* Build a list of search directories from PATHS.
2357 PREFIX is a string to prepend to the list.
2358 If CHECK_DIR_P is nonzero we ensure the directory exists.
2359 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2360 It is also used by the --print-search-dirs flag. */
2363 build_search_list (struct path_prefix *paths, const char *prefix,
2366 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2368 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2369 int first_time = TRUE;
2370 struct prefix_list *pprefix;
2372 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2373 obstack_1grow (&collect_obstack, '=');
2375 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2377 int len = strlen (pprefix->prefix);
2381 || is_directory (pprefix->prefix, machine_suffix, 0)))
2384 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2387 obstack_grow (&collect_obstack, pprefix->prefix, len);
2388 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2391 if (just_machine_suffix
2392 && pprefix->require_machine_suffix == 2
2394 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2397 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2400 obstack_grow (&collect_obstack, pprefix->prefix, len);
2401 obstack_grow (&collect_obstack, just_machine_suffix,
2405 if (! pprefix->require_machine_suffix)
2408 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2411 obstack_grow (&collect_obstack, pprefix->prefix, len);
2415 obstack_1grow (&collect_obstack, '\0');
2416 return XOBFINISH (&collect_obstack, char *);
2419 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2423 putenv_from_prefixes (struct path_prefix *paths, const char *env_var)
2425 putenv (build_search_list (paths, env_var, 1));
2428 /* Check whether NAME can be accessed in MODE. This is like access,
2429 except that it never considers directories to be executable. */
2432 access_check (const char *name, int mode)
2438 if (stat (name, &st) < 0
2439 || S_ISDIR (st.st_mode))
2443 return access (name, mode);
2446 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2447 access to check permissions.
2448 Return 0 if not found, otherwise return its name, allocated with malloc. */
2451 find_a_file (struct path_prefix *pprefix, const char *name, int mode,
2455 const char *const file_suffix =
2456 ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
2457 struct prefix_list *pl;
2458 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2459 const char *multilib_name, *multilib_os_name;
2461 #ifdef DEFAULT_ASSEMBLER
2462 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2463 return xstrdup (DEFAULT_ASSEMBLER);
2466 #ifdef DEFAULT_LINKER
2467 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2468 return xstrdup (DEFAULT_LINKER);
2472 len += strlen (machine_suffix);
2474 multilib_name = name;
2475 multilib_os_name = name;
2476 if (multilib && multilib_os_dir)
2478 int len1 = multilib_dir ? strlen (multilib_dir) + 1 : 0;
2479 int len2 = strlen (multilib_os_dir) + 1;
2481 len += len1 > len2 ? len1 : len2;
2483 multilib_name = ACONCAT ((multilib_dir, dir_separator_str, name,
2485 if (strcmp (multilib_os_dir, ".") != 0)
2486 multilib_os_name = ACONCAT ((multilib_os_dir, dir_separator_str, name,
2490 temp = xmalloc (len);
2492 /* Determine the filename to execute (special case for absolute paths). */
2494 if (IS_ABSOLUTE_PATH (name))
2496 if (access (name, mode) == 0)
2498 strcpy (temp, name);
2503 for (pl = pprefix->plist; pl; pl = pl->next)
2505 const char *this_name
2506 = pl->os_multilib ? multilib_os_name : multilib_name;
2510 /* Some systems have a suffix for executable files.
2511 So try appending that first. */
2512 if (file_suffix[0] != 0)
2514 strcpy (temp, pl->prefix);
2515 strcat (temp, machine_suffix);
2516 strcat (temp, multilib_name);
2517 strcat (temp, file_suffix);
2518 if (access_check (temp, mode) == 0)
2522 /* Now try just the multilib_name. */
2523 strcpy (temp, pl->prefix);
2524 strcat (temp, machine_suffix);
2525 strcat (temp, multilib_name);
2526 if (access_check (temp, mode) == 0)
2530 /* Certain prefixes are tried with just the machine type,
2531 not the version. This is used for finding as, ld, etc. */
2532 if (just_machine_suffix && pl->require_machine_suffix == 2)
2534 /* Some systems have a suffix for executable files.
2535 So try appending that first. */
2536 if (file_suffix[0] != 0)
2538 strcpy (temp, pl->prefix);
2539 strcat (temp, just_machine_suffix);
2540 strcat (temp, multilib_name);
2541 strcat (temp, file_suffix);
2542 if (access_check (temp, mode) == 0)
2546 strcpy (temp, pl->prefix);
2547 strcat (temp, just_machine_suffix);
2548 strcat (temp, multilib_name);
2549 if (access_check (temp, mode) == 0)
2553 /* Certain prefixes can't be used without the machine suffix
2554 when the machine or version is explicitly specified. */
2555 if (! pl->require_machine_suffix)
2557 /* Some systems have a suffix for executable files.
2558 So try appending that first. */
2559 if (file_suffix[0] != 0)
2561 strcpy (temp, pl->prefix);
2562 strcat (temp, this_name);
2563 strcat (temp, file_suffix);
2564 if (access_check (temp, mode) == 0)
2568 strcpy (temp, pl->prefix);
2569 strcat (temp, this_name);
2570 if (access_check (temp, mode) == 0)
2579 /* Ranking of prefixes in the sort list. -B prefixes are put before
2582 enum path_prefix_priority
2584 PREFIX_PRIORITY_B_OPT,
2585 PREFIX_PRIORITY_LAST
2588 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2589 order according to PRIORITY. Within each PRIORITY, new entries are
2592 If WARN is nonzero, we will warn if no file is found
2593 through this prefix. WARN should point to an int
2594 which will be set to 1 if this entry is used.
2596 COMPONENT is the value to be passed to update_path.
2598 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2599 the complete value of machine_suffix.
2600 2 means try both machine_suffix and just_machine_suffix. */
2603 add_prefix (struct path_prefix *pprefix, const char *prefix,
2604 const char *component, /* enum prefix_priority */ int priority,
2605 int require_machine_suffix, int os_multilib)
2607 struct prefix_list *pl, **prev;
2610 for (prev = &pprefix->plist;
2611 (*prev) != NULL && (*prev)->priority <= priority;
2612 prev = &(*prev)->next)
2615 /* Keep track of the longest prefix. */
2617 prefix = update_path (prefix, component);
2618 len = strlen (prefix);
2619 if (len > pprefix->max_len)
2620 pprefix->max_len = len;
2622 pl = xmalloc (sizeof (struct prefix_list));
2623 pl->prefix = prefix;
2624 pl->require_machine_suffix = require_machine_suffix;
2625 pl->priority = priority;
2626 pl->os_multilib = os_multilib;
2628 /* Insert after PREV. */
2633 /* Same as add_prefix, but prepending target_system_root to prefix. */
2635 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2636 const char *component,
2637 /* enum prefix_priority */ int priority,
2638 int require_machine_suffix, int os_multilib)
2640 if (!IS_ABSOLUTE_PATH (prefix))
2641 fatal ("system path '%s' is not absolute", prefix);
2643 if (target_system_root)
2645 if (target_sysroot_suffix)
2646 prefix = concat (target_sysroot_suffix, prefix, NULL);
2647 prefix = concat (target_system_root, prefix, NULL);
2649 /* We have to override this because GCC's notion of sysroot
2650 moves along with GCC. */
2654 add_prefix (pprefix, prefix, component, priority,
2655 require_machine_suffix, os_multilib);
2658 /* Execute the command specified by the arguments on the current line of spec.
2659 When using pipes, this includes several piped-together commands
2660 with `|' between them.
2662 Return 0 if successful, -1 if failed. */
2668 int n_commands; /* # of command. */
2670 struct pex_obj *pex;
2673 const char *prog; /* program name. */
2674 const char **argv; /* vector of args. */
2677 struct command *commands; /* each command buffer with above info. */
2679 gcc_assert (!processing_spec_function);
2681 /* Count # of piped commands. */
2682 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2683 if (strcmp (argbuf[i], "|") == 0)
2686 /* Get storage for each command. */
2687 commands = alloca (n_commands * sizeof (struct command));
2689 /* Split argbuf into its separate piped processes,
2690 and record info about each one.
2691 Also search for the programs that are to be run. */
2693 commands[0].prog = argbuf[0]; /* first command. */
2694 commands[0].argv = &argbuf[0];
2695 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, 0);
2698 commands[0].argv[0] = string;
2700 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2701 if (strcmp (argbuf[i], "|") == 0)
2702 { /* each command. */
2703 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2704 fatal ("-pipe not supported");
2706 argbuf[i] = 0; /* termination of command args. */
2707 commands[n_commands].prog = argbuf[i + 1];
2708 commands[n_commands].argv = &argbuf[i + 1];
2709 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2712 commands[n_commands].argv[0] = string;
2716 argbuf[argbuf_index] = 0;
2718 /* If -v, print what we are about to do, and maybe query. */
2722 /* For help listings, put a blank line between sub-processes. */
2723 if (print_help_list)
2724 fputc ('\n', stderr);
2726 /* Print each piped command as a separate line. */
2727 for (i = 0; i < n_commands; i++)
2729 const char *const *j;
2731 if (verbose_only_flag)
2733 for (j = commands[i].argv; *j; j++)
2736 fprintf (stderr, " \"");
2737 for (p = *j; *p; ++p)
2739 if (*p == '"' || *p == '\\' || *p == '$')
2740 fputc ('\\', stderr);
2743 fputc ('"', stderr);
2747 for (j = commands[i].argv; *j; j++)
2748 fprintf (stderr, " %s", *j);
2750 /* Print a pipe symbol after all but the last command. */
2751 if (i + 1 != n_commands)
2752 fprintf (stderr, " |");
2753 fprintf (stderr, "\n");
2756 if (verbose_only_flag != 0)
2758 /* verbose_only_flag should act as if the spec was
2759 executed, so increment execution_count before
2760 returning. This prevents spurious warnings about
2761 unused linker input files, etc. */
2766 notice ("\nGo ahead? (y or n) ");
2770 while (getchar () != '\n')
2773 if (i != 'y' && i != 'Y')
2778 #ifdef ENABLE_VALGRIND_CHECKING
2779 /* Run the each command through valgrind. To simplify prepending the
2780 path to valgrind and the option "-q" (for quiet operation unless
2781 something triggers), we allocate a separate argv array. */
2783 for (i = 0; i < n_commands; i++)
2789 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
2792 argv = alloca ((argc + 3) * sizeof (char *));
2794 argv[0] = VALGRIND_PATH;
2796 for (j = 2; j < argc + 2; j++)
2797 argv[j] = commands[i].argv[j - 2];
2800 commands[i].argv = argv;
2801 commands[i].prog = argv[0];
2805 /* Run each piped subprocess. */
2807 pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
2808 programname, temp_filename);
2810 pfatal_with_name (_("pex_init failed"));
2812 for (i = 0; i < n_commands; i++)
2816 const char *string = commands[i].argv[0];
2818 errmsg = pex_run (pex,
2819 ((i + 1 == n_commands ? PEX_LAST : 0)
2820 | (string == commands[i].prog ? PEX_SEARCH : 0)),
2821 string, (char * const *) commands[i].argv,
2830 pfatal_with_name (errmsg);
2834 if (string != commands[i].prog)
2835 free ((void *) string);
2840 /* Wait for all the subprocesses to finish. */
2844 struct pex_time *times = NULL;
2847 statuses = alloca (n_commands * sizeof (int));
2848 if (!pex_get_status (pex, n_commands, statuses))
2849 pfatal_with_name (_("failed to get exit status"));
2853 times = alloca (n_commands * sizeof (struct pex_time));
2854 if (!pex_get_times (pex, n_commands, times))
2855 pfatal_with_name (_("failed to get process times"));
2860 for (i = 0; i < n_commands; ++i)
2862 int status = statuses[i];
2864 if (WIFSIGNALED (status))
2867 /* SIGPIPE is a special case. It happens in -pipe mode
2868 when the compiler dies before the preprocessor is done,
2869 or the assembler dies before the compiler is done.
2870 There's generally been an error already, and this is
2871 just fallout. So don't generate another error unless
2872 we would otherwise have succeeded. */
2873 if (WTERMSIG (status) == SIGPIPE
2874 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2879 Internal error: %s (program %s)\n\
2880 Please submit a full bug report.\n\
2881 See %s for instructions.",
2882 strsignal (WTERMSIG (status)), commands[i].prog,
2887 else if (WIFEXITED (status)
2888 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2890 if (WEXITSTATUS (status) > greatest_status)
2891 greatest_status = WEXITSTATUS (status);
2897 struct pex_time *pt = ×[i];
2900 ut = ((double) pt->user_seconds
2901 + (double) pt->user_microseconds / 1.0e6);
2902 st = ((double) pt->system_seconds
2903 + (double) pt->system_microseconds / 1.0e6);
2906 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
2914 /* Find all the switches given to us
2915 and make a vector describing them.
2916 The elements of the vector are strings, one per switch given.
2917 If a switch uses following arguments, then the `part1' field
2918 is the switch itself and the `args' field
2919 is a null-terminated vector containing the following arguments.
2920 The `live_cond' field is:
2922 1 if the switch is true in a conditional spec,
2923 -1 if false (overridden by a later switch)
2924 -2 if this switch should be ignored (used in %<S)
2925 The `validated' field is nonzero if any spec has looked at this switch;
2926 if it remains zero at the end of the run, it must be meaningless. */
2929 #define SWITCH_FALSE -1
2930 #define SWITCH_IGNORE -2
2931 #define SWITCH_LIVE 1
2938 unsigned char validated;
2939 unsigned char ordering;
2942 static struct switchstr *switches;
2944 static int n_switches;
2946 /* Language is one of three things:
2948 1) The name of a real programming language.
2949 2) NULL, indicating that no one has figured out
2951 3) '*', indicating that the file should be passed
2956 const char *language;
2957 struct compiler *incompiler;
2962 /* Also a vector of input files specified. */
2964 static struct infile *infiles;
2968 /* True if multiple input files are being compiled to a single
2971 static bool combine_inputs;
2973 /* This counts the number of libraries added by lang_specific_driver, so that
2974 we can tell if there were any user supplied any files or libraries. */
2976 static int added_libraries;
2978 /* And a vector of corresponding output files is made up later. */
2980 const char **outfiles;
2982 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2984 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2985 is true if we should look for an executable suffix. DO_OBJ
2986 is true if we should look for an object suffix. */
2989 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
2990 int do_obj ATTRIBUTE_UNUSED)
2992 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3000 len = strlen (name);
3002 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3003 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3004 if (do_obj && len > 2
3005 && name[len - 2] == '.'
3006 && name[len - 1] == 'o')
3008 obstack_grow (&obstack, name, len - 2);
3009 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3010 name = XOBFINISH (&obstack, const char *);
3014 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3015 /* If there is no filetype, make it the executable suffix (which includes
3016 the "."). But don't get confused if we have just "-o". */
3017 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3020 for (i = len - 1; i >= 0; i--)
3021 if (IS_DIR_SEPARATOR (name[i]))
3024 for (i++; i < len; i++)
3028 obstack_grow (&obstack, name, len);
3029 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3030 strlen (TARGET_EXECUTABLE_SUFFIX));
3031 name = XOBFINISH (&obstack, const char *);
3038 /* Display the command line switches accepted by gcc. */
3042 printf (_("Usage: %s [options] file...\n"), programname);
3043 fputs (_("Options:\n"), stdout);
3045 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3046 fputs (_(" --help Display this information\n"), stdout);
3047 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3049 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3050 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3051 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3052 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3053 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3054 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3055 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3056 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3057 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3059 -print-multi-lib Display the mapping between command line options and\n\
3060 multiple library search directories\n"), stdout);
3061 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3062 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3063 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3064 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3065 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3066 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3067 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3068 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3069 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3070 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3071 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3072 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3073 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3075 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3076 for headers and libraries\n"), stdout);
3077 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3078 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3079 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3080 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3081 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3082 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3083 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3084 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3085 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3087 -x <language> Specify the language of the following input files\n\
3088 Permissible languages include: c c++ assembler none\n\
3089 'none' means revert to the default behavior of\n\
3090 guessing the language based on the file's extension\n\
3094 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3095 passed on to the various sub-processes invoked by %s. In order to pass\n\
3096 other options on to these processes the -W<letter> options must be used.\n\
3099 /* The rest of the options are displayed by invocations of the various
3104 add_preprocessor_option (const char *option, int len)
3106 n_preprocessor_options++;
3108 if (! preprocessor_options)
3109 preprocessor_options = xmalloc (n_preprocessor_options * sizeof (char *));
3111 preprocessor_options = xrealloc (preprocessor_options,
3112 n_preprocessor_options * sizeof (char *));
3114 preprocessor_options [n_preprocessor_options - 1] =
3115 save_string (option, len);
3119 add_assembler_option (const char *option, int len)
3121 n_assembler_options++;
3123 if (! assembler_options)
3124 assembler_options = xmalloc (n_assembler_options * sizeof (char *));
3126 assembler_options = xrealloc (assembler_options,
3127 n_assembler_options * sizeof (char *));
3129 assembler_options [n_assembler_options - 1] = save_string (option, len);
3133 add_linker_option (const char *option, int len)
3137 if (! linker_options)
3138 linker_options = xmalloc (n_linker_options * sizeof (char *));
3140 linker_options = xrealloc (linker_options,
3141 n_linker_options * sizeof (char *));
3143 linker_options [n_linker_options - 1] = save_string (option, len);
3146 /* Create the vector `switches' and its contents.
3147 Store its length in `n_switches'. */
3150 process_command (int argc, const char **argv)
3155 const char *spec_lang = 0;
3156 int last_language_n_infiles;
3157 int lang_n_infiles = 0;
3158 #ifdef MODIFY_TARGET_NAME
3159 int is_modify_target_name;
3163 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3167 added_libraries = 0;
3169 /* Figure compiler version from version string. */
3171 compiler_version = temp1 = xstrdup (version_string);
3173 for (; *temp1; ++temp1)
3182 /* If there is a -V or -b option (or both), process it now, before
3183 trying to interpret the rest of the command line.
3184 Use heuristic that all configuration names must have at least
3185 one dash '-'. This allows us to pass options starting with -b. */
3186 if (argc > 1 && argv[1][0] == '-'
3187 && (argv[1][1] == 'V' ||
3188 ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
3190 const char *new_version = DEFAULT_TARGET_VERSION;
3191 const char *new_machine = DEFAULT_TARGET_MACHINE;
3192 const char *progname = argv[0];
3197 while (argc > 1 && argv[1][0] == '-'
3198 && (argv[1][1] == 'V' ||
3199 ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
3201 char opt = argv[1][1];
3203 if (argv[1][2] != '\0')
3216 fatal ("'-%c' option must have argument", opt);
3223 for (baselen = strlen (progname); baselen > 0; baselen--)
3224 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3226 new_argv0 = xmemdup (progname, baselen,
3227 baselen + concat_length (new_version, new_machine,
3228 "-gcc-", NULL) + 1);
3229 strcpy (new_argv0 + baselen, new_machine);
3230 strcat (new_argv0, "-gcc-");
3231 strcat (new_argv0, new_version);
3233 new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
3234 (argc + 1) * sizeof (argv[0]));
3235 new_argv[0] = new_argv0;
3237 execvp (new_argv0, new_argv);
3238 fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
3241 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3242 see if we can create it from the pathname specified in argv[0]. */
3244 gcc_libexec_prefix = standard_libexec_prefix;
3246 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3247 if (!gcc_exec_prefix)
3249 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3250 standard_exec_prefix);
3251 gcc_libexec_prefix = make_relative_prefix (argv[0],
3252 standard_bindir_prefix,
3253 standard_libexec_prefix);
3254 if (gcc_exec_prefix)
3255 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3258 gcc_libexec_prefix = make_relative_prefix (gcc_exec_prefix,
3259 standard_exec_prefix,
3260 standard_libexec_prefix);
3264 if (gcc_exec_prefix)
3266 int len = strlen (gcc_exec_prefix);
3268 if (len > (int) sizeof ("/lib/gcc/") - 1
3269 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3271 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3272 if (IS_DIR_SEPARATOR (*temp)
3273 && strncmp (temp + 1, "lib", 3) == 0
3274 && IS_DIR_SEPARATOR (temp[4])
3275 && strncmp (temp + 5, "gcc", 3) == 0)
3276 len -= sizeof ("/lib/gcc/") - 1;
3279 set_std_prefix (gcc_exec_prefix, len);
3280 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3281 PREFIX_PRIORITY_LAST, 0, 0);
3282 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3283 PREFIX_PRIORITY_LAST, 0, 0);
3286 /* COMPILER_PATH and LIBRARY_PATH have values
3287 that are lists of directory names with colons. */
3289 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3292 const char *startp, *endp;
3293 char *nstore = alloca (strlen (temp) + 3);
3295 startp = endp = temp;
3298 if (*endp == PATH_SEPARATOR || *endp == 0)
3300 strncpy (nstore, startp, endp - startp);
3302 strcpy (nstore, concat (".", dir_separator_str, NULL));
3303 else if (!IS_DIR_SEPARATOR (endp[-1]))
3305 nstore[endp - startp] = DIR_SEPARATOR;
3306 nstore[endp - startp + 1] = 0;
3309 nstore[endp - startp] = 0;
3310 add_prefix (&exec_prefixes, nstore, 0,
3311 PREFIX_PRIORITY_LAST, 0, 0);
3312 add_prefix (&include_prefixes, nstore, 0,
3313 PREFIX_PRIORITY_LAST, 0, 0);
3316 endp = startp = endp + 1;
3323 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3324 if (temp && *cross_compile == '0')
3326 const char *startp, *endp;
3327 char *nstore = alloca (strlen (temp) + 3);
3329 startp = endp = temp;
3332 if (*endp == PATH_SEPARATOR || *endp == 0)
3334 strncpy (nstore, startp, endp - startp);
3336 strcpy (nstore, concat (".", dir_separator_str, NULL));
3337 else if (!IS_DIR_SEPARATOR (endp[-1]))
3339 nstore[endp - startp] = DIR_SEPARATOR;
3340 nstore[endp - startp + 1] = 0;
3343 nstore[endp - startp] = 0;
3344 add_prefix (&startfile_prefixes, nstore, NULL,
3345 PREFIX_PRIORITY_LAST, 0, 1);
3348 endp = startp = endp + 1;
3355 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3356 GET_ENVIRONMENT (temp, "LPATH");
3357 if (temp && *cross_compile == '0')
3359 const char *startp, *endp;
3360 char *nstore = alloca (strlen (temp) + 3);
3362 startp = endp = temp;
3365 if (*endp == PATH_SEPARATOR || *endp == 0)
3367 strncpy (nstore, startp, endp - startp);
3369 strcpy (nstore, concat (".", dir_separator_str, NULL));
3370 else if (!IS_DIR_SEPARATOR (endp[-1]))
3372 nstore[endp - startp] = DIR_SEPARATOR;
3373 nstore[endp - startp + 1] = 0;
3376 nstore[endp - startp] = 0;
3377 add_prefix (&startfile_prefixes, nstore, NULL,
3378 PREFIX_PRIORITY_LAST, 0, 1);
3381 endp = startp = endp + 1;
3388 /* Convert new-style -- options to old-style. */
3389 translate_options (&argc, (const char *const **) &argv);
3391 /* Do language-specific adjustment/addition of flags. */
3392 lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
3394 /* Scan argv twice. Here, the first time, just count how many switches
3395 there will be in their vector, and how many input files in theirs.
3396 Here we also parse the switches that cc itself uses (e.g. -v). */
3398 for (i = 1; i < argc; i++)
3400 if (! strcmp (argv[i], "-dumpspecs"))
3402 struct spec_list *sl;
3404 for (sl = specs; sl; sl = sl->next)
3405 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3406 if (link_command_spec)
3407 printf ("*link_command:\n%s\n\n", link_command_spec);
3410 else if (! strcmp (argv[i], "-dumpversion"))
3412 printf ("%s\n", spec_version);
3415 else if (! strcmp (argv[i], "-dumpmachine"))
3417 printf ("%s\n", spec_machine);
3420 else if (strcmp (argv[i], "-fversion") == 0)
3422 /* translate_options () has turned --version into -fversion. */
3423 printf (_("%s (GCC) %s\n"), programname, version_string);
3424 printf ("Copyright %s 2005 Free Software Foundation, Inc.\n",
3426 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3427 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3431 else if (strcmp (argv[i], "-fhelp") == 0)
3433 /* translate_options () has turned --help into -fhelp. */
3434 print_help_list = 1;
3436 /* We will be passing a dummy file on to the sub-processes. */
3440 /* CPP driver cannot obtain switch from cc1_options. */
3442 add_preprocessor_option ("--help", 6);
3443 add_assembler_option ("--help", 6);
3444 add_linker_option ("--help", 6);
3446 else if (strcmp (argv[i], "-ftarget-help") == 0)
3448 /* translate_options() has turned --target-help into -ftarget-help. */
3449 target_help_flag = 1;
3451 /* We will be passing a dummy file on to the sub-processes. */
3455 /* CPP driver cannot obtain switch from cc1_options. */
3457 add_preprocessor_option ("--target-help", 13);
3458 add_assembler_option ("--target-help", 13);
3459 add_linker_option ("--target-help", 13);
3461 else if (! strcmp (argv[i], "-pass-exit-codes"))
3463 pass_exit_codes = 1;
3466 else if (! strcmp (argv[i], "-print-search-dirs"))
3467 print_search_dirs = 1;
3468 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3469 print_file_name = "libgcc.a";
3470 else if (! strncmp (argv[i], "-print-file-name=", 17))
3471 print_file_name = argv[i] + 17;
3472 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3473 print_prog_name = argv[i] + 17;
3474 else if (! strcmp (argv[i], "-print-multi-lib"))
3475 print_multi_lib = 1;
3476 else if (! strcmp (argv[i], "-print-multi-directory"))
3477 print_multi_directory = 1;
3478 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3479 print_multi_os_directory = 1;
3480 else if (! strncmp (argv[i], "-Wa,", 4))
3483 /* Pass the rest of this option to the assembler. */
3485 /* Split the argument at commas. */
3487 for (j = 4; argv[i][j]; j++)
3488 if (argv[i][j] == ',')
3490 add_assembler_option (argv[i] + prev, j - prev);
3494 /* Record the part after the last comma. */
3495 add_assembler_option (argv[i] + prev, j - prev);
3497 else if (! strncmp (argv[i], "-Wp,", 4))
3500 /* Pass the rest of this option to the preprocessor. */
3502 /* Split the argument at commas. */
3504 for (j = 4; argv[i][j]; j++)
3505 if (argv[i][j] == ',')
3507 add_preprocessor_option (argv[i] + prev, j - prev);
3511 /* Record the part after the last comma. */
3512 add_preprocessor_option (argv[i] + prev, j - prev);
3514 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3515 /* The +e options to the C++ front-end. */
3517 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3520 /* Split the argument at commas. */
3521 for (j = 3; argv[i][j]; j++)
3522 n_infiles += (argv[i][j] == ',');
3524 else if (strcmp (argv[i], "-Xlinker") == 0)
3527 fatal ("argument to '-Xlinker' is missing");
3532 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3535 fatal ("argument to '-Xpreprocessor' is missing");
3537 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3539 else if (strcmp (argv[i], "-Xassembler") == 0)
3542 fatal ("argument to '-Xassembler' is missing");
3544 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3546 else if (strcmp (argv[i], "-l") == 0)
3549 fatal ("argument to '-l' is missing");
3554 else if (strncmp (argv[i], "-l", 2) == 0)
3556 else if (strcmp (argv[i], "-save-temps") == 0)
3558 save_temps_flag = 1;
3561 else if (strcmp (argv[i], "-combine") == 0)
3566 else if (strcmp (argv[i], "-specs") == 0)
3568 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3570 fatal ("argument to '-specs' is missing");
3572 user->next = (struct user_specs *) 0;
3573 user->filename = argv[i];
3574 if (user_specs_tail)
3575 user_specs_tail->next = user;
3577 user_specs_head = user;
3578 user_specs_tail = user;
3580 else if (strncmp (argv[i], "-specs=", 7) == 0)
3582 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3583 if (strlen (argv[i]) == 7)
3584 fatal ("argument to '-specs=' is missing");
3586 user->next = (struct user_specs *) 0;
3587 user->filename = argv[i] + 7;
3588 if (user_specs_tail)
3589 user_specs_tail->next = user;
3591 user_specs_head = user;
3592 user_specs_tail = user;
3594 else if (strcmp (argv[i], "-time") == 0)
3596 else if (strcmp (argv[i], "-pipe") == 0)
3598 /* -pipe has to go into the switches array as well as
3603 else if (strcmp (argv[i], "-###") == 0)
3605 /* This is similar to -v except that there is no execution
3606 of the commands and the echoed arguments are quoted. It
3607 is intended for use in shell scripts to capture the
3608 driver-generated command line. */
3609 verbose_only_flag++;
3612 else if (argv[i][0] == '-' && argv[i][1] != 0)
3614 const char *p = &argv[i][1];
3620 if (NULL == strchr(argv[i] + 2, '-')) break;
3622 fatal ("'-%c' must come at the start of the command line", c);
3630 if (p[1] == 0 && i + 1 == argc)
3631 fatal ("argument to '-B' is missing");
3637 len = strlen (value);
3639 /* Catch the case where the user has forgotten to append a
3640 directory separator to the path. Note, they may be using
3641 -B to add an executable name prefix, eg "i386-elf-", in
3642 order to distinguish between multiple installations of
3643 GCC in the same directory. Hence we must check to see
3644 if appending a directory separator actually makes a
3645 valid directory name. */
3646 if (! IS_DIR_SEPARATOR (value [len - 1])
3647 && is_directory (value, "", 0))
3649 char *tmp = xmalloc (len + 2);
3650 strcpy (tmp, value);
3651 tmp[len] = DIR_SEPARATOR;
3656 /* As a kludge, if the arg is "[foo/]stageN/", just
3657 add "[foo/]include" to the include prefix. */
3660 && (IS_DIR_SEPARATOR (value[len - 8]))))
3661 && strncmp (value + len - 7, "stage", 5) == 0
3662 && ISDIGIT (value[len - 2])
3663 && (IS_DIR_SEPARATOR (value[len - 1])))
3666 add_prefix (&include_prefixes, "./", NULL,
3667 PREFIX_PRIORITY_B_OPT, 0, 0);
3670 char *string = xmalloc (len - 6);
3671 memcpy (string, value, len - 7);
3672 string[len - 7] = 0;
3673 add_prefix (&include_prefixes, string, NULL,
3674 PREFIX_PRIORITY_B_OPT, 0, 0);
3678 add_prefix (&exec_prefixes, value, NULL,
3679 PREFIX_PRIORITY_B_OPT, 0, 0);
3680 add_prefix (&startfile_prefixes, value, NULL,
3681 PREFIX_PRIORITY_B_OPT, 0, 0);
3682 add_prefix (&include_prefixes, value, NULL,
3683 PREFIX_PRIORITY_B_OPT, 0, 0);
3688 case 'v': /* Print our subcommands and print versions. */
3690 /* If they do anything other than exactly `-v', don't set
3691 verbose_flag; rather, continue on to give the error. */
3709 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3714 /* Forward scan, just in case -S or -c is specified
3721 if (argv[j][0] == '-')
3723 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3729 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3730 j += skip - (argv[j][2] != 0);
3731 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3738 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3740 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3742 argv[i] = convert_filename (argv[i], ! have_c, 0);
3749 #ifdef MODIFY_TARGET_NAME
3750 is_modify_target_name = 0;
3752 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3753 if (! strcmp (argv[i], modify_target[j].sw))
3755 char *new_name = xmalloc (strlen (modify_target[j].str)
3756 + strlen (spec_machine));
3759 int made_addition = 0;
3761 is_modify_target_name = 1;
3762 for (p = spec_machine, q = new_name; *p != 0; )
3764 if (modify_target[j].add_del == DELETE
3765 && (! strncmp (q, modify_target[j].str,
3766 strlen (modify_target[j].str))))
3767 p += strlen (modify_target[j].str);
3768 else if (modify_target[j].add_del == ADD
3769 && ! made_addition && *p == '-')
3771 for (r = modify_target[j].str; *r != 0; )
3779 spec_machine = new_name;
3782 if (is_modify_target_name)
3788 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3789 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3790 else if (WORD_SWITCH_TAKES_ARG (p))
3791 i += WORD_SWITCH_TAKES_ARG (p);
3801 if (save_temps_flag && use_pipes)
3803 /* -save-temps overrides -pipe, so that temp files are produced */
3804 if (save_temps_flag)
3805 error ("warning: -pipe ignored because -save-temps specified");
3809 /* Set up the search paths before we go looking for config files. */
3811 /* These come before the md prefixes so that we will find gcc's subcommands
3812 (such as cpp) rather than those of the host system. */
3813 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3814 as well as trying the machine and the version. */
3816 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
3817 PREFIX_PRIORITY_LAST, 1, 0);
3818 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
3819 PREFIX_PRIORITY_LAST, 2, 0);
3820 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3821 PREFIX_PRIORITY_LAST, 2, 0);
3822 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3823 PREFIX_PRIORITY_LAST, 2, 0);
3824 add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
3825 PREFIX_PRIORITY_LAST, 2, 0);
3828 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3829 PREFIX_PRIORITY_LAST, 1, 0);
3830 add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
3831 PREFIX_PRIORITY_LAST, 1, 0);
3833 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3834 dir_separator_str, NULL);
3836 /* If tooldir is relative, base it on exec_prefixes. A relative
3837 tooldir lets us move the installed tree as a unit.
3839 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3840 directories, so that we can search both the user specified directory
3841 and the standard place. */
3843 if (!IS_ABSOLUTE_PATH (tooldir_prefix))
3845 if (gcc_exec_prefix)
3847 char *gcc_exec_tooldir_prefix
3848 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3849 spec_version, dir_separator_str, tooldir_prefix, NULL);
3851 add_prefix (&exec_prefixes,
3852 concat (gcc_exec_tooldir_prefix, "bin",
3853 dir_separator_str, NULL),
3854 NULL, PREFIX_PRIORITY_LAST, 0, 0);
3855 add_prefix (&startfile_prefixes,
3856 concat (gcc_exec_tooldir_prefix, "lib",
3857 dir_separator_str, NULL),
3858 NULL, PREFIX_PRIORITY_LAST, 0, 1);
3861 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3862 dir_separator_str, spec_version,
3863 dir_separator_str, tooldir_prefix, NULL);
3866 add_prefix (&exec_prefixes,
3867 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3868 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
3869 add_prefix (&startfile_prefixes,
3870 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3871 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
3873 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3874 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3875 then consider it to relocate with the rest of the GCC installation
3876 if GCC_EXEC_PREFIX is set.
3877 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3878 if (target_system_root && gcc_exec_prefix)
3880 char *tmp_prefix = make_relative_prefix (argv[0],
3881 standard_bindir_prefix,
3882 target_system_root);
3883 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
3885 target_system_root = tmp_prefix;
3886 target_system_root_changed = 1;
3891 /* More prefixes are enabled in main, after we read the specs file
3892 and determine whether this is cross-compilation or not. */
3894 /* Then create the space for the vectors and scan again. */
3896 switches = xmalloc ((n_switches + 1) * sizeof (struct switchstr));
3897 infiles = xmalloc ((n_infiles + 1) * sizeof (struct infile));
3900 last_language_n_infiles = -1;
3902 /* This, time, copy the text of each switch and store a pointer
3903 to the copy in the vector of switches.
3904 Store all the infiles in their vector. */
3906 for (i = 1; i < argc; i++)
3908 /* Just skip the switches that were handled by the preceding loop. */
3909 #ifdef MODIFY_TARGET_NAME
3910 is_modify_target_name = 0;
3912 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3913 if (! strcmp (argv[i], modify_target[j].sw))
3914 is_modify_target_name = 1;
3916 if (is_modify_target_name)
3920 if (! strncmp (argv[i], "-Wa,", 4))
3922 else if (! strncmp (argv[i], "-Wp,", 4))
3924 else if (! strcmp (argv[i], "-pass-exit-codes"))
3926 else if (! strcmp (argv[i], "-print-search-dirs"))
3928 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3930 else if (! strncmp (argv[i], "-print-file-name=", 17))
3932 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3934 else if (! strcmp (argv[i], "-print-multi-lib"))
3936 else if (! strcmp (argv[i], "-print-multi-directory"))
3938 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3940 else if (! strcmp (argv[i], "-ftarget-help"))
3942 else if (! strcmp (argv[i], "-fhelp"))
3944 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
3946 target_system_root = argv[i] + strlen ("--sysroot=");
3947 target_system_root_changed = 1;
3949 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3951 /* Compensate for the +e options to the C++ front-end;
3952 they're there simply for cfront call-compatibility. We do
3953 some magic in default_compilers to pass them down properly.
3954 Note we deliberately start at the `+' here, to avoid passing
3955 -e0 or -e1 down into the linker. */
3956 switches[n_switches].part1 = &argv[i][0];
3957 switches[n_switches].args = 0;
3958 switches[n_switches].live_cond = SWITCH_OK;
3959 switches[n_switches].validated = 0;
3962 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3965 /* Split the argument at commas. */
3967 for (j = 4; argv[i][j]; j++)
3968 if (argv[i][j] == ',')
3970 infiles[n_infiles].language = "*";
3971 infiles[n_infiles++].name
3972 = save_string (argv[i] + prev, j - prev);
3975 /* Record the part after the last comma. */
3976 infiles[n_infiles].language = "*";
3977 infiles[n_infiles++].name = argv[i] + prev;
3979 else if (strcmp (argv[i], "-Xlinker") == 0)
3981 infiles[n_infiles].language = "*";
3982 infiles[n_infiles++].name = argv[++i];
3984 /* Xassembler and Xpreprocessor were already handled in the first argv
3985 scan, so all we need to do here is ignore them and their argument. */
3986 else if (strcmp (argv[i], "-Xassembler") == 0)
3988 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3990 else if (strcmp (argv[i], "-l") == 0)
3991 { /* POSIX allows separation of -l and the lib arg;
3992 canonicalize by concatenating -l with its arg */
3993 infiles[n_infiles].language = "*";
3994 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
3996 else if (strncmp (argv[i], "-l", 2) == 0)
3998 infiles[n_infiles].language = "*";
3999 infiles[n_infiles++].name = argv[i];
4001 else if (strcmp (argv[i], "-specs") == 0)
4003 else if (strncmp (argv[i], "-specs=", 7) == 0)
4005 else if (strcmp (argv[i], "-time") == 0)
4007 else if (strcmp (argv[i], "-###") == 0)
4009 else if (argv[i][0] == '-' && argv[i][1] != 0)
4011 const char *p = &argv[i][1];
4016 if (p[1] == 0 && i + 1 == argc)
4017 fatal ("argument to '-x' is missing");
4019 spec_lang = argv[++i];
4022 if (! strcmp (spec_lang, "none"))
4023 /* Suppress the warning if -xnone comes after the last input
4024 file, because alternate command interfaces like g++ might
4025 find it useful to place -xnone after each input file. */
4028 last_language_n_infiles = n_infiles;
4031 switches[n_switches].part1 = p;
4032 /* Deal with option arguments in separate argv elements. */
4033 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4034 || WORD_SWITCH_TAKES_ARG (p))
4037 int n_args = WORD_SWITCH_TAKES_ARG (p);
4041 /* Count only the option arguments in separate argv elements. */
4042 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4044 if (i + n_args >= argc)
4045 fatal ("argument to '-%s' is missing", p);
4046 switches[n_switches].args
4047 = xmalloc ((n_args + 1) * sizeof(const char *));
4049 switches[n_switches].args[j++] = argv[++i];
4050 /* Null-terminate the vector. */
4051 switches[n_switches].args[j] = 0;
4053 else if (strchr (switches_need_spaces, c))
4055 /* On some systems, ld cannot handle some options without
4056 a space. So split the option from its argument. */
4057 char *part1 = xmalloc (2);
4061 switches[n_switches].part1 = part1;
4062 switches[n_switches].args = xmalloc (2 * sizeof (const char *));
4063 switches[n_switches].args[0] = xstrdup (p+1);
4064 switches[n_switches].args[1] = 0;
4067 switches[n_switches].args = 0;
4069 switches[n_switches].live_cond = SWITCH_OK;
4070 switches[n_switches].validated = 0;
4071 switches[n_switches].ordering = 0;
4072 /* These are always valid, since gcc.c itself understands them. */
4073 if (!strcmp (p, "save-temps")
4074 || !strcmp (p, "static-libgcc")
4075 || !strcmp (p, "shared-libgcc")
4076 || !strcmp (p, "pipe"))
4077 switches[n_switches].validated = 1;
4080 char ch = switches[n_switches].part1[0];
4082 switches[n_switches].validated = 1;
4088 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4089 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4092 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4094 perror_with_name (argv[i]);