1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
75 #include "coretypes.h"
76 #include "multilib.h" /* before tm.h */
79 #if ! defined( SIGCHLD ) && defined( SIGCLD )
80 # define SIGCHLD SIGCLD
90 /* By default there is no special suffix for target executables. */
91 /* FIXME: when autoconf is fixed, remove the host check - dj */
92 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
93 #define HAVE_TARGET_EXECUTABLE_SUFFIX
96 /* By default there is no special suffix for host executables. */
97 #ifdef HOST_EXECUTABLE_SUFFIX
98 #define HAVE_HOST_EXECUTABLE_SUFFIX
100 #define HOST_EXECUTABLE_SUFFIX ""
103 /* By default, the suffix for target object files is ".o". */
104 #ifdef TARGET_OBJECT_SUFFIX
105 #define HAVE_TARGET_OBJECT_SUFFIX
107 #define TARGET_OBJECT_SUFFIX ".o"
110 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
112 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
113 #ifndef LIBRARY_PATH_ENV
114 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
118 #define kill(p,s) raise(s)
121 /* If a stage of compilation returns an exit status >= 1,
122 compilation of that file ceases. */
124 #define MIN_FATAL_STATUS 1
126 /* Flag set by cppspec.c to 1. */
129 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
130 static bool at_file_supplied
;
132 /* Flag saying to pass the greatest exit code returned by a sub-process
133 to the calling program. */
134 static int pass_exit_codes
;
136 /* Definition of string containing the arguments given to configure. */
137 #include "configargs.h"
139 /* Flag saying to print the directories gcc will search through looking for
140 programs, libraries, etc. */
142 static int print_search_dirs
;
144 /* Flag saying to print the full filename of this file
145 as found through our usual search mechanism. */
147 static const char *print_file_name
= NULL
;
149 /* As print_file_name, but search for executable file. */
151 static const char *print_prog_name
= NULL
;
153 /* Flag saying to print the relative path we'd use to
154 find libgcc.a given the current compiler flags. */
156 static int print_multi_directory
;
158 static int print_sysroot
;
160 /* Flag saying to print the relative path we'd use to
161 find OS libraries given the current compiler flags. */
163 static int print_multi_os_directory
;
165 /* Flag saying to print the list of subdirectories and
166 compiler flags used to select them in a standard form. */
168 static int print_multi_lib
;
170 /* Flag saying to print the command line options understood by gcc and its
173 static int print_help_list
;
175 /* Flag saying to print the sysroot suffix used for searching for
178 static int print_sysroot_headers_suffix
;
180 /* Flag indicating whether we should print the command and arguments */
182 static int verbose_flag
;
184 /* Flag indicating whether we should ONLY print the command and
185 arguments (like verbose_flag) without executing the command.
186 Displayed arguments are quoted so that the generated command
187 line is suitable for execution. This is intended for use in
188 shell scripts to capture the driver-generated command line. */
189 static int verbose_only_flag
;
191 /* Flag indicating how to print command line options of sub-processes. */
193 static int print_subprocess_help
;
195 /* Flag indicating whether we should report subprocess execution times
196 (if this is supported by the system - see pexecute.c). */
198 static int report_times
;
200 /* Nonzero means place this string before uses of /, so that include
201 and library files can be found in an alternate location. */
203 #ifdef TARGET_SYSTEM_ROOT
204 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
206 static const char *target_system_root
= 0;
209 /* Nonzero means pass the updated target_system_root to the compiler. */
211 static int target_system_root_changed
;
213 /* Nonzero means append this string to target_system_root. */
215 static const char *target_sysroot_suffix
= 0;
217 /* Nonzero means append this string to target_system_root for headers. */
219 static const char *target_sysroot_hdrs_suffix
= 0;
221 /* Nonzero means write "temp" files in source directory
222 and use the source file's name in them, and don't delete them. */
224 static int save_temps_flag
;
226 /* Nonzero means pass multiple source files to the compiler at one time. */
228 static int combine_flag
= 0;
230 /* Nonzero means use pipes to communicate between subprocesses.
231 Overridden by either of the above two flags. */
233 static int use_pipes
;
235 /* The compiler version. */
237 static const char *compiler_version
;
239 /* The target version specified with -V */
241 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
243 /* The target machine specified with -b. */
245 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
247 /* Nonzero if cross-compiling.
248 When -b is used, the value comes from the `specs' file. */
250 #ifdef CROSS_DIRECTORY_STRUCTURE
251 static const char *cross_compile
= "1";
253 static const char *cross_compile
= "0";
256 #ifdef MODIFY_TARGET_NAME
258 /* Information on how to alter the target name based on a command-line
259 switch. The only case we support now is simply appending or deleting a
260 string to or from the end of the first part of the configuration name. */
262 static const struct modify_target
264 const char *const sw
;
265 const enum add_del
{ADD
, DELETE
} add_del
;
266 const char *const str
;
268 modify_target
[] = MODIFY_TARGET_NAME
;
271 /* The number of errors that have occurred; the link phase will not be
272 run if this is nonzero. */
273 static int error_count
= 0;
275 /* Greatest exit code of sub-processes that has been encountered up to
277 static int greatest_status
= 1;
279 /* This is the obstack which we use to allocate many strings. */
281 static struct obstack obstack
;
283 /* This is the obstack to build an environment variable to pass to
284 collect2 that describes all of the relevant switches of what to
285 pass the compiler in building the list of pointers to constructors
288 static struct obstack collect_obstack
;
290 /* This is a list of a wrapper program and its arguments.
291 e.g. wrapper_string of "strace,-c"
292 will cause all programs to run as
293 strace -c program arguments
296 static const char *wrapper_string
;
298 /* Forward declaration for prototypes. */
302 static void init_spec (void);
303 static void store_arg (const char *, int, int);
304 static void insert_wrapper (const char *);
305 static char *load_specs (const char *);
306 static void read_specs (const char *, int);
307 static void set_spec (const char *, const char *);
308 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
309 static char *build_search_list (const struct path_prefix
*, const char *,
311 static void xputenv (const char *);
312 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
314 static int access_check (const char *, int);
315 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
316 static void add_prefix (struct path_prefix
*, const char *, const char *,
318 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
319 const char *, int, int, int);
320 static void translate_options (int *, const char *const **);
321 static char *skip_whitespace (char *);
322 static void delete_if_ordinary (const char *);
323 static void delete_temp_files (void);
324 static void delete_failure_queue (void);
325 static void clear_failure_queue (void);
326 static int check_live_switch (int, int);
327 static const char *handle_braces (const char *);
328 static inline bool input_suffix_matches (const char *, const char *);
329 static inline bool switch_matches (const char *, const char *, int);
330 static inline void mark_matching_switches (const char *, const char *, int);
331 static inline void process_marked_switches (void);
332 static const char *process_brace_body (const char *, const char *, const char *, int, int);
333 static const struct spec_function
*lookup_spec_function (const char *);
334 static const char *eval_spec_function (const char *, const char *);
335 static const char *handle_spec_function (const char *);
336 static char *save_string (const char *, int);
337 static void set_collect_gcc_options (void);
338 static int do_spec_1 (const char *, int, const char *);
339 static int do_spec_2 (const char *);
340 static void do_option_spec (const char *, const char *);
341 static void do_self_spec (const char *);
342 static const char *find_file (const char *);
343 static int is_directory (const char *, bool);
344 static const char *validate_switches (const char *);
345 static void validate_all_switches (void);
346 static inline void validate_switches_from_spec (const char *);
347 static void give_switch (int, int);
348 static int used_arg (const char *, int);
349 static int default_arg (const char *, int);
350 static void set_multilib_dir (void);
351 static void print_multilib_info (void);
352 static void perror_with_name (const char *);
353 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
354 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
355 static void display_help (void);
356 static void add_preprocessor_option (const char *, int);
357 static void add_assembler_option (const char *, int);
358 static void add_linker_option (const char *, int);
359 static void process_command (int, const char **);
360 static int execute (void);
361 static void alloc_args (void);
362 static void clear_args (void);
363 static void fatal_error (int);
364 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
365 static void init_gcc_specs (struct obstack
*, const char *, const char *,
368 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
369 static const char *convert_filename (const char *, int, int);
372 static const char *getenv_spec_function (int, const char **);
373 static const char *if_exists_spec_function (int, const char **);
374 static const char *if_exists_else_spec_function (int, const char **);
375 static const char *replace_outfile_spec_function (int, const char **);
376 static const char *version_compare_spec_function (int, const char **);
377 static const char *include_spec_function (int, const char **);
378 static const char *print_asm_header_spec_function (int, const char **);
380 /* The Specs Language
382 Specs are strings containing lines, each of which (if not blank)
383 is made up of a program name, and arguments separated by spaces.
384 The program name must be exact and start from root, since no path
385 is searched and it is unreliable to depend on the current working directory.
386 Redirection of input or output is not supported; the subprograms must
387 accept filenames saying what files to read and write.
389 In addition, the specs can contain %-sequences to substitute variable text
390 or for conditional text. Here is a table of all defined %-sequences.
391 Note that spaces are not generated automatically around the results of
392 expanding these sequences; therefore, you can concatenate them together
393 or with constant text in a single argument.
395 %% substitute one % into the program name or argument.
396 %i substitute the name of the input file being processed.
397 %b substitute the basename of the input file being processed.
398 This is the substring up to (and not including) the last period
399 and not including the directory.
400 %B same as %b, but include the file suffix (text after the last period).
402 substitute a file name that has suffix SUFFIX and is chosen
403 once per compilation, and mark the argument a la %d. To reduce
404 exposure to denial-of-service attacks, the file name is now
405 chosen in a way that is hard to predict even when previously
406 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
407 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
408 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
409 had been pre-processed. Previously, %g was simply substituted
410 with a file name chosen once per compilation, without regard
411 to any appended suffix (which was therefore treated just like
412 ordinary text), making such attacks more likely to succeed.
414 like %g, but if -pipe is in effect, expands simply to "-".
416 like %g, but if -pipe is in effect, expands to nothing. (We have both
417 %| and %m to accommodate differences between system assemblers; see
418 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
420 like %g, but generates a new temporary file name even if %uSUFFIX
423 substitutes the last file name generated with %uSUFFIX, generating a
424 new one if there is no such last file name. In the absence of any
425 %uSUFFIX, this is just like %gSUFFIX, except they don't share
426 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
427 would involve the generation of two distinct file names, one
428 for each `%g.s' and another for each `%U.s'. Previously, %U was
429 simply substituted with a file name chosen for the previous %u,
430 without regard to any appended suffix.
432 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
433 writable, and if save-temps is off; otherwise, substitute the name
434 of a temporary file, just like %u. This temporary file is not
435 meant for communication between processes, but rather as a junk
438 substitutes .SUFFIX for the suffixes of a matched switch's args when
439 it is subsequently output with %*. SUFFIX is terminated by the next
441 %d marks the argument containing or following the %d as a
442 temporary file name, so that that file will be deleted if CC exits
443 successfully. Unlike %g, this contributes no text to the argument.
444 %w marks the argument containing or following the %w as the
445 "output file" of this compilation. This puts the argument
446 into the sequence of arguments that %o will substitute later.
447 %V indicates that this compilation produces no "output file".
449 like %{...} but mark last argument supplied within
450 as a file to be deleted on failure.
451 %o substitutes the names of all the output files, with spaces
452 automatically placed around them. You should write spaces
453 around the %o as well or the results are undefined.
454 %o is for use in the specs for running the linker.
455 Input files whose names have no recognized suffix are not compiled
456 at all, but they are included among the output files, so they will
458 %O substitutes the suffix for object files. Note that this is
459 handled specially when it immediately follows %g, %u, or %U
460 (with or without a suffix argument) because of the need for
461 those to form complete file names. The handling is such that
462 %O is treated exactly as if it had already been substituted,
463 except that %g, %u, and %U do not currently support additional
464 SUFFIX characters following %O as they would following, for
466 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
467 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
468 and -B options) and -imultilib as necessary.
469 %s current argument is the name of a library or startup file of some sort.
470 Search for that file in a standard list of directories
471 and substitute the full name found.
472 %eSTR Print STR as an error message. STR is terminated by a newline.
473 Use this when inconsistent options are detected.
474 %nSTR Print STR as a notice. STR is terminated by a newline.
475 %x{OPTION} Accumulate an option for %X.
476 %X Output the accumulated linker options specified by compilations.
477 %Y Output the accumulated assembler options specified by compilations.
478 %Z Output the accumulated preprocessor options specified by compilations.
479 %a process ASM_SPEC as a spec.
480 This allows config.h to specify part of the spec for running as.
481 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
482 used here. This can be used to run a post-processor after the
483 assembler has done its job.
484 %D Dump out a -L option for each directory in startfile_prefixes.
485 If multilib_dir is set, extra entries are generated with it affixed.
486 %l process LINK_SPEC as a spec.
487 %L process LIB_SPEC as a spec.
488 %G process LIBGCC_SPEC as a spec.
489 %R Output the concatenation of target_system_root and
490 target_sysroot_suffix.
491 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
492 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
493 %C process CPP_SPEC as a spec.
494 %1 process CC1_SPEC as a spec.
495 %2 process CC1PLUS_SPEC as a spec.
496 %* substitute the variable part of a matched option. (See below.)
497 Note that each comma in the substituted string is replaced by
499 %<S remove all occurrences of -S from the command line.
500 Note - this command is position dependent. % commands in the
501 spec string before this one will see -S, % commands in the
502 spec string after this one will not.
503 %<S* remove all occurrences of all switches beginning with -S from the
506 Call the named function FUNCTION, passing it ARGS. ARGS is
507 first processed as a nested spec string, then split into an
508 argument vector in the usual fashion. The function returns
509 a string which is processed as if it had appeared literally
510 as part of the current spec.
511 %{S} substitutes the -S switch, if that switch was given to CC.
512 If that switch was not specified, this substitutes nothing.
513 Here S is a metasyntactic variable.
514 %{S*} substitutes all the switches specified to CC whose names start
515 with -S. This is used for -o, -I, etc; switches that take
516 arguments. CC considers `-o foo' as being one switch whose
517 name starts with `o'. %{o*} would substitute this text,
518 including the space; thus, two arguments would be generated.
519 %{S*&T*} likewise, but preserve order of S and T options (the order
520 of S and T in the spec is not significant). Can be any number
521 of ampersand-separated variables; for each the wild card is
522 optional. Useful for CPP as %{D*&U*&A*}.
524 %{S:X} substitutes X, if the -S switch was given to CC.
525 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
526 %{S*:X} substitutes X if one or more switches whose names start
527 with -S was given to CC. Normally X is substituted only
528 once, no matter how many such switches appeared. However,
529 if %* appears somewhere in X, then X will be substituted
530 once for each matching switch, with the %* replaced by the
531 part of that switch that matched the '*'.
532 %{.S:X} substitutes X, if processing a file with suffix S.
533 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
534 %{,S:X} substitutes X, if processing a file which will use spec S.
535 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
537 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
538 combined with '!', '.', ',', and '*' as above binding stronger
540 If %* appears in X, all of the alternatives must be starred, and
541 only the first matching alternative is substituted.
542 %{S:X; if S was given to CC, substitutes X;
543 T:Y; else if T was given to CC, substitutes Y;
544 :D} else substitutes D. There can be as many clauses as you need.
545 This may be combined with '.', '!', ',', '|', and '*' as above.
547 %(Spec) processes a specification defined in a specs file as *Spec:
548 %[Spec] as above, but put __ around -D arguments
550 The conditional text X in a %{S:X} or similar construct may contain
551 other nested % constructs or spaces, or even newlines. They are
552 processed as usual, as described above. Trailing white space in X is
553 ignored. White space may also appear anywhere on the left side of the
554 colon in these constructs, except between . or * and the corresponding
557 The -O, -f, -m, and -W switches are handled specifically in these
558 constructs. If another value of -O or the negated form of a -f, -m, or
559 -W switch is found later in the command line, the earlier switch
560 value is ignored, except with {S*} where S is just one letter; this
561 passes all matching options.
563 The character | at the beginning of the predicate text is used to indicate
564 that a command should be piped to the following command, but only if -pipe
567 Note that it is built into CC which switches take arguments and which
568 do not. You might think it would be useful to generalize this to
569 allow each compiler's spec to say which switches take arguments. But
570 this cannot be done in a consistent fashion. CC cannot even decide
571 which input files have been specified without knowing which switches
572 take arguments, and it must know which input files to compile in order
573 to tell which compilers to run.
575 CC also knows implicitly that arguments starting in `-l' are to be
576 treated as compiler output files, and passed to the linker in their
577 proper position among the other output files. */
579 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
581 /* config.h can define ASM_SPEC to provide extra args to the assembler
582 or extra switch-translations. */
587 /* config.h can define ASM_FINAL_SPEC to run a post processor after
588 the assembler has run. */
589 #ifndef ASM_FINAL_SPEC
590 #define ASM_FINAL_SPEC ""
593 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
594 or extra switch-translations. */
599 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
600 or extra switch-translations. */
605 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
606 or extra switch-translations. */
608 #define CC1PLUS_SPEC ""
611 /* config.h can define LINK_SPEC to provide extra args to the linker
612 or extra switch-translations. */
617 /* config.h can define LIB_SPEC to override the default libraries. */
619 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
624 /* XXX: valid only for GNU ld */
625 /* XXX: should exactly match hooks provided by libmudflap.a */
626 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
627 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
628 --wrap=mmap --wrap=munmap --wrap=alloca\
629 } %{fmudflapth: --wrap=pthread_create\
630 }} %{fmudflap|fmudflapth: --wrap=main}"
633 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
636 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
639 #if defined(REAL_LIBGCC_SPEC)
640 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
641 #elif defined(LINK_LIBGCC_SPECIAL_1)
642 /* Have gcc do the search for libgcc.a. */
643 #define LIBGCC_SPEC "libgcc.a%s"
645 #define LIBGCC_SPEC "-lgcc"
649 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
650 #ifndef STARTFILE_SPEC
651 #define STARTFILE_SPEC \
652 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
655 /* config.h can define SWITCHES_NEED_SPACES to control which options
656 require spaces between the option and the argument. */
657 #ifndef SWITCHES_NEED_SPACES
658 #define SWITCHES_NEED_SPACES ""
661 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
663 #define ENDFILE_SPEC ""
667 #define LINKER_NAME "collect2"
670 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
671 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
676 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
678 #ifndef ASM_DEBUG_SPEC
679 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
680 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
681 # define ASM_DEBUG_SPEC \
682 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
683 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" ASM_MAP \
684 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}" ASM_MAP)
686 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
687 # define ASM_DEBUG_SPEC "%{g*:--gstabs}" ASM_MAP
689 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
690 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" ASM_MAP
694 #ifndef ASM_DEBUG_SPEC
695 # define ASM_DEBUG_SPEC ""
698 /* Here is the spec for running the linker, after compiling all files. */
700 /* This is overridable by the target in case they need to specify the
701 -lgcc and -lc order specially, yet not require them to override all
702 of LINK_COMMAND_SPEC. */
703 #ifndef LINK_GCC_C_SEQUENCE_SPEC
704 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
707 #ifndef LINK_SSP_SPEC
708 #ifdef TARGET_LIBC_PROVIDES_SSP
709 #define LINK_SSP_SPEC "%{fstack-protector:}"
711 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
715 #ifndef LINK_PIE_SPEC
717 #define LINK_PIE_SPEC "%{pie:-pie} "
719 #define LINK_PIE_SPEC "%{pie:} "
723 /* -u* was put back because both BSD and SysV seem to support it. */
724 /* %{static:} simply prevents an error message if the target machine
725 doesn't handle -static. */
726 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
727 scripts which exist in user specified directories, or in standard
729 #ifndef LINK_COMMAND_SPEC
730 #define LINK_COMMAND_SPEC "\
731 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
732 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
733 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
734 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
735 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
736 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
737 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
738 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
741 #ifndef LINK_LIBGCC_SPEC
742 /* Generate -L options for startfile prefix list. */
743 # define LINK_LIBGCC_SPEC "%D"
746 #ifndef STARTFILE_PREFIX_SPEC
747 # define STARTFILE_PREFIX_SPEC ""
751 # define SYSROOT_SPEC "--sysroot=%R"
754 #ifndef SYSROOT_SUFFIX_SPEC
755 # define SYSROOT_SUFFIX_SPEC ""
758 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
759 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
762 static const char *asm_debug
;
763 static const char *cpp_spec
= CPP_SPEC
;
764 static const char *cc1_spec
= CC1_SPEC
;
765 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
766 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
767 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
768 static const char *asm_spec
= ASM_SPEC
;
769 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
770 static const char *link_spec
= LINK_SPEC
;
771 static const char *lib_spec
= LIB_SPEC
;
772 static const char *mfwrap_spec
= MFWRAP_SPEC
;
773 static const char *mflib_spec
= MFLIB_SPEC
;
774 static const char *link_gomp_spec
= "";
775 static const char *libgcc_spec
= LIBGCC_SPEC
;
776 static const char *endfile_spec
= ENDFILE_SPEC
;
777 static const char *startfile_spec
= STARTFILE_SPEC
;
778 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
779 static const char *linker_name_spec
= LINKER_NAME
;
780 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
781 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
782 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
783 static const char *sysroot_spec
= SYSROOT_SPEC
;
784 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
785 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
787 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
788 There should be no need to override these in target dependent files,
789 but we need to copy them to the specs file so that newer versions
790 of the GCC driver can correctly drive older tool chains with the
791 appropriate -B options. */
793 /* When cpplib handles traditional preprocessing, get rid of this, and
794 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
795 that we default the front end language better. */
796 static const char *trad_capable_cpp
=
797 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
799 /* We don't wrap .d files in %W{} since a missing .d file, and
800 therefore no dependency entry, confuses make into thinking a .o
801 file that happens to exist is up-to-date. */
802 static const char *cpp_unique_options
=
803 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
804 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
805 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
806 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
807 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
808 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
809 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
810 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
811 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
812 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
815 /* This contains cpp options which are common with cc1_options and are passed
816 only when preprocessing only to avoid duplication. We pass the cc1 spec
817 options to the preprocessor so that it the cc1 spec may manipulate
818 options used to set target flags. Those special target flags settings may
819 in turn cause preprocessor symbols to be defined specially. */
820 static const char *cpp_options
=
821 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
822 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
823 %{undef} %{save-temps:-fpch-preprocess}";
825 /* This contains cpp options which are not passed when the preprocessor
826 output will be used by another program. */
827 static const char *cpp_debug_options
= "%{d*}";
829 /* NB: This is shared amongst all front-ends. */
830 static const char *cc1_options
=
831 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
832 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
833 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
834 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
835 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
836 %{Qn:-fno-ident} %{--help:--help}\
837 %{--target-help:--target-help}\
838 %{--help=*:--help=%(VALUE)}\
839 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
840 %{fsyntax-only:-o %j} %{-param*}\
841 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
842 %{coverage:-fprofile-arcs -ftest-coverage}";
844 static const char *asm_options
=
845 "%{--target-help:%:print-asm-header()} "
847 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
848 to the assembler equivalents. */
849 "%{v} %{w:-W} %{I*} "
851 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
853 static const char *invoke_as
=
854 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
855 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
857 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
860 /* Some compilers have limits on line lengths, and the multilib_select
861 and/or multilib_matches strings can be very long, so we build them at
863 static struct obstack multilib_obstack
;
864 static const char *multilib_select
;
865 static const char *multilib_matches
;
866 static const char *multilib_defaults
;
867 static const char *multilib_exclusions
;
869 /* Check whether a particular argument is a default argument. */
871 #ifndef MULTILIB_DEFAULTS
872 #define MULTILIB_DEFAULTS { "" }
875 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
877 #ifndef DRIVER_SELF_SPECS
878 #define DRIVER_SELF_SPECS ""
881 /* Adding -fopenmp should imply pthreads. This is particularly important
882 for targets that use different start files and suchlike. */
883 #ifndef GOMP_SELF_SPECS
884 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
887 static const char *const driver_self_specs
[] = {
888 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
891 #ifndef OPTION_DEFAULT_SPECS
892 #define OPTION_DEFAULT_SPECS { "", "" }
901 static const struct default_spec
902 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
906 struct user_specs
*next
;
907 const char *filename
;
910 static struct user_specs
*user_specs_head
, *user_specs_tail
;
912 #ifndef SWITCH_TAKES_ARG
913 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
916 #ifndef WORD_SWITCH_TAKES_ARG
917 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
920 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
921 /* This defines which switches stop a full compilation. */
922 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
923 ((CHAR) == 'c' || (CHAR) == 'S')
925 #ifndef SWITCH_CURTAILS_COMPILATION
926 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
927 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
931 /* Record the mapping from file suffixes for compilation specs. */
935 const char *suffix
; /* Use this compiler for input files
936 whose names end in this suffix. */
938 const char *spec
; /* To use this compiler, run this spec. */
940 const char *cpp_spec
; /* If non-NULL, substitute this spec
941 for `%C', rather than the usual
943 const int combinable
; /* If nonzero, compiler can deal with
944 multiple source files at once (IMA). */
945 const int needs_preprocessing
; /* If nonzero, source files need to
946 be run through a preprocessor. */
949 /* Pointer to a vector of `struct compiler' that gives the spec for
950 compiling a file, based on its suffix.
951 A file that does not end in any of these suffixes will be passed
952 unchanged to the loader and nothing else will be done to it.
954 An entry containing two 0s is used to terminate the vector.
956 If multiple entries match a file, the last matching one is used. */
958 static struct compiler
*compilers
;
960 /* Number of entries in `compilers', not counting the null terminator. */
962 static int n_compilers
;
964 /* The default list of file name suffixes and their compilation specs. */
966 static const struct compiler default_compilers
[] =
968 /* Add lists of suffixes of known languages here. If those languages
969 were not present when we built the driver, we will hit these copies
970 and be given a more meaningful error than "file not used since
971 linking is not done". */
972 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
973 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
974 {".mii", "#Objective-C++", 0, 0, 0},
975 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
976 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
977 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
978 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
979 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
980 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
981 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
982 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
983 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
984 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
985 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
986 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
987 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
988 {".r", "#Ratfor", 0, 0, 0},
989 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
990 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
991 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
992 /* Next come the entries for C. */
993 {".c", "@c", 0, 1, 1},
995 /* cc1 has an integrated ISO C preprocessor. We should invoke the
996 external preprocessor if -save-temps is given. */
997 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
999 %{traditional|ftraditional:\
1000 %eGNU C no longer supports -traditional without -E}\
1002 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1003 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1004 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1006 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1007 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1008 %{!fsyntax-only:%(invoke_as)}} \
1010 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1011 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
1012 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1013 cc1 %(cpp_unique_options) %(cc1_options)}}\
1014 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1016 "%{!E:%e-E or -x required when input is from standard input}\
1017 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1018 {".h", "@c-header", 0, 0, 0},
1020 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1021 external preprocessor if -save-temps is given. */
1022 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1024 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1025 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1026 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1028 -o %g.s %{!o*:--output-pch=%i.gch}\
1029 %W{o*:--output-pch=%*}%V}\
1030 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1031 cc1 %(cpp_unique_options) %(cc1_options)\
1032 -o %g.s %{!o*:--output-pch=%i.gch}\
1033 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1034 {".i", "@cpp-output", 0, 1, 0},
1036 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1037 {".s", "@assembler", 0, 1, 0},
1039 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1040 {".sx", "@assembler-with-cpp", 0, 1, 0},
1041 {".S", "@assembler-with-cpp", 0, 1, 0},
1042 {"@assembler-with-cpp",
1043 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1044 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1045 %{E|M|MM:%(cpp_debug_options)}\
1046 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1047 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1049 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1050 %{E|M|MM:%(cpp_debug_options)}\
1051 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1052 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1057 /* Mark end of table. */
1061 /* Number of elements in default_compilers, not counting the terminator. */
1063 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1065 /* A vector of options to give to the linker.
1066 These options are accumulated by %x,
1067 and substituted into the linker command with %X. */
1068 static int n_linker_options
;
1069 static char **linker_options
;
1071 /* A vector of options to give to the assembler.
1072 These options are accumulated by -Wa,
1073 and substituted into the assembler command with %Y. */
1074 static int n_assembler_options
;
1075 static char **assembler_options
;
1077 /* A vector of options to give to the preprocessor.
1078 These options are accumulated by -Wp,
1079 and substituted into the preprocessor command with %Z. */
1080 static int n_preprocessor_options
;
1081 static char **preprocessor_options
;
1083 /* Define how to map long options into short ones. */
1085 /* This structure describes one mapping. */
1088 /* The long option's name. */
1089 const char *const name
;
1090 /* The equivalent short option. */
1091 const char *const equivalent
;
1092 /* Argument info. A string of flag chars; NULL equals no options.
1093 a => argument required.
1094 o => argument optional.
1095 j => join argument to equivalent, making one word.
1096 * => require other text after NAME as an argument. */
1097 const char *const arg_info
;
1100 /* This is the table of mappings. Mappings are tried sequentially
1101 for each option encountered; the first one that matches, wins. */
1103 static const struct option_map option_map
[] =
1105 {"--all-warnings", "-Wall", 0},
1106 {"--ansi", "-ansi", 0},
1107 {"--assemble", "-S", 0},
1108 {"--assert", "-A", "a"},
1109 {"--classpath", "-fclasspath=", "aj"},
1110 {"--bootclasspath", "-fbootclasspath=", "aj"},
1111 {"--CLASSPATH", "-fclasspath=", "aj"},
1112 {"--combine", "-combine", 0},
1113 {"--comments", "-C", 0},
1114 {"--comments-in-macros", "-CC", 0},
1115 {"--compile", "-c", 0},
1116 {"--debug", "-g", "oj"},
1117 {"--define-macro", "-D", "aj"},
1118 {"--dependencies", "-M", 0},
1119 {"--dump", "-d", "a"},
1120 {"--dumpbase", "-dumpbase", "a"},
1121 {"--encoding", "-fencoding=", "aj"},
1122 {"--entry", "-e", 0},
1123 {"--extra-warnings", "-W", 0},
1124 {"--extdirs", "-fextdirs=", "aj"},
1125 {"--for-assembler", "-Wa", "a"},
1126 {"--for-linker", "-Xlinker", "a"},
1127 {"--force-link", "-u", "a"},
1128 {"--coverage", "-coverage", 0},
1129 {"--imacros", "-imacros", "a"},
1130 {"--include", "-include", "a"},
1131 {"--include-barrier", "-I-", 0},
1132 {"--include-directory", "-I", "aj"},
1133 {"--include-directory-after", "-idirafter", "a"},
1134 {"--include-prefix", "-iprefix", "a"},
1135 {"--include-with-prefix", "-iwithprefix", "a"},
1136 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1137 {"--include-with-prefix-after", "-iwithprefix", "a"},
1138 {"--language", "-x", "a"},
1139 {"--library-directory", "-L", "a"},
1140 {"--machine", "-m", "aj"},
1141 {"--machine-", "-m", "*j"},
1142 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1143 {"--no-line-commands", "-P", 0},
1144 {"--no-precompiled-includes", "-noprecomp", 0},
1145 {"--no-standard-includes", "-nostdinc", 0},
1146 {"--no-standard-libraries", "-nostdlib", 0},
1147 {"--no-warnings", "-w", 0},
1148 {"--optimize", "-O", "oj"},
1149 {"--output", "-o", "a"},
1150 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1151 {"--param", "--param", "a"},
1152 {"--pass-exit-codes", "-pass-exit-codes", 0},
1153 {"--pedantic", "-pedantic", 0},
1154 {"--pedantic-errors", "-pedantic-errors", 0},
1155 {"--pie", "-pie", 0},
1156 {"--pipe", "-pipe", 0},
1157 {"--prefix", "-B", "a"},
1158 {"--preprocess", "-E", 0},
1159 {"--print-search-dirs", "-print-search-dirs", 0},
1160 {"--print-file-name", "-print-file-name=", "aj"},
1161 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1162 {"--print-missing-file-dependencies", "-MG", 0},
1163 {"--print-multi-lib", "-print-multi-lib", 0},
1164 {"--print-multi-directory", "-print-multi-directory", 0},
1165 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1166 {"--print-prog-name", "-print-prog-name=", "aj"},
1167 {"--print-sysroot", "-print-sysroot", 0},
1168 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1169 {"--profile", "-p", 0},
1170 {"--profile-blocks", "-a", 0},
1171 {"--quiet", "-q", 0},
1172 {"--resource", "-fcompile-resource=", "aj"},
1173 {"--save-temps", "-save-temps", 0},
1174 {"--shared", "-shared", 0},
1175 {"--silent", "-q", 0},
1176 {"--specs", "-specs=", "aj"},
1177 {"--static", "-static", 0},
1178 {"--std", "-std=", "aj"},
1179 {"--symbolic", "-symbolic", 0},
1180 {"--sysroot", "--sysroot=", "aj"},
1181 {"--time", "-time", 0},
1182 {"--trace-includes", "-H", 0},
1183 {"--traditional", "-traditional", 0},
1184 {"--traditional-cpp", "-traditional-cpp", 0},
1185 {"--trigraphs", "-trigraphs", 0},
1186 {"--undefine-macro", "-U", "aj"},
1187 {"--user-dependencies", "-MM", 0},
1188 {"--verbose", "-v", 0},
1189 {"--warn-", "-W", "*j"},
1190 {"--write-dependencies", "-MD", 0},
1191 {"--write-user-dependencies", "-MMD", 0},
1196 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1197 static const struct {
1198 const char *const option_found
;
1199 const char *const replacements
;
1200 } target_option_translations
[] =
1202 TARGET_OPTION_TRANSLATE_TABLE
,
1207 /* Translate the options described by *ARGCP and *ARGVP.
1208 Make a new vector and store it back in *ARGVP,
1209 and store its length in *ARGCP. */
1212 translate_options (int *argcp
, const char *const **argvp
)
1216 const char *const *argv
= *argvp
;
1217 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1218 const char **newv
= XNEWVAR (const char *, newvsize
);
1222 newv
[newindex
++] = argv
[i
++];
1226 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1230 target_option_translations
[tott_idx
].option_found
;
1233 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1240 for (sp
= target_option_translations
[tott_idx
].replacements
;
1247 newvsize
+= spaces
* sizeof (const char *);
1248 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1250 sp
= target_option_translations
[tott_idx
].replacements
;
1259 newv
[newindex
++] = np
;
1260 while (*np
!= ' ' && *np
)
1271 if (target_option_translations
[tott_idx
].option_found
)
1275 /* Translate -- options. */
1276 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1279 /* Find a mapping that applies to this option. */
1280 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1282 size_t optlen
= strlen (option_map
[j
].name
);
1283 size_t arglen
= strlen (argv
[i
]);
1284 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1285 const char *arginfo
= option_map
[j
].arg_info
;
1290 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1292 const char *arg
= 0;
1294 if (arglen
< optlen
)
1297 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1298 if (strlen (option_map
[k
].name
) >= arglen
1299 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1301 error ("ambiguous abbreviation %s", argv
[i
]);
1305 if (k
!= ARRAY_SIZE (option_map
))
1309 if (arglen
> optlen
)
1311 /* If the option has an argument, accept that. */
1312 if (argv
[i
][optlen
] == '=')
1313 arg
= argv
[i
] + optlen
+ 1;
1315 /* If this mapping requires extra text at end of name,
1316 accept that as "argument". */
1317 else if (strchr (arginfo
, '*') != 0)
1318 arg
= argv
[i
] + optlen
;
1320 /* Otherwise, extra text at end means mismatch.
1321 Try other mappings. */
1326 else if (strchr (arginfo
, '*') != 0)
1328 error ("incomplete '%s' option", option_map
[j
].name
);
1332 /* Handle arguments. */
1333 if (strchr (arginfo
, 'a') != 0)
1339 error ("missing argument to '%s' option",
1340 option_map
[j
].name
);
1347 else if (strchr (arginfo
, '*') != 0)
1349 else if (strchr (arginfo
, 'o') == 0)
1352 error ("extraneous argument to '%s' option",
1353 option_map
[j
].name
);
1357 /* Store the translation as one argv elt or as two. */
1358 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1359 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1363 newv
[newindex
++] = option_map
[j
].equivalent
;
1364 newv
[newindex
++] = arg
;
1367 newv
[newindex
++] = option_map
[j
].equivalent
;
1375 /* Handle old-fashioned options--just copy them through,
1376 with their arguments. */
1377 else if (argv
[i
][0] == '-')
1379 const char *p
= argv
[i
] + 1;
1383 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1384 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1385 else if (WORD_SWITCH_TAKES_ARG (p
))
1386 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1387 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1390 else if (! strcmp (p
, "Xlinker"))
1392 else if (! strcmp (p
, "Xpreprocessor"))
1394 else if (! strcmp (p
, "Xassembler"))
1397 /* Watch out for an option at the end of the command line that
1398 is missing arguments, and avoid skipping past the end of the
1400 if (nskip
+ i
> argc
)
1405 newv
[newindex
++] = argv
[i
++];
1410 /* Ordinary operands, or +e options. */
1411 newv
[newindex
++] = argv
[i
++];
1421 skip_whitespace (char *p
)
1425 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1426 be considered whitespace. */
1427 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1429 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1443 /* Structures to keep track of prefixes to try when looking for files. */
1447 const char *prefix
; /* String to prepend to the path. */
1448 struct prefix_list
*next
; /* Next in linked list. */
1449 int require_machine_suffix
; /* Don't use without machine_suffix. */
1450 /* 2 means try both machine_suffix and just_machine_suffix. */
1451 int priority
; /* Sort key - priority within list. */
1452 int os_multilib
; /* 1 if OS multilib scheme should be used,
1453 0 for GCC multilib scheme. */
1458 struct prefix_list
*plist
; /* List of prefixes to try */
1459 int max_len
; /* Max length of a prefix in PLIST */
1460 const char *name
; /* Name of this list (used in config stuff) */
1463 /* List of prefixes to try when looking for executables. */
1465 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1467 /* List of prefixes to try when looking for startup (crt0) files. */
1469 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1471 /* List of prefixes to try when looking for include files. */
1473 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1475 /* Suffix to attach to directories searched for commands.
1476 This looks like `MACHINE/VERSION/'. */
1478 static const char *machine_suffix
= 0;
1480 /* Suffix to attach to directories searched for commands.
1481 This is just `MACHINE/'. */
1483 static const char *just_machine_suffix
= 0;
1485 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1487 static const char *gcc_exec_prefix
;
1489 /* Adjusted value of standard_libexec_prefix. */
1491 static const char *gcc_libexec_prefix
;
1493 /* Default prefixes to attach to command names. */
1495 #ifndef STANDARD_STARTFILE_PREFIX_1
1496 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1498 #ifndef STANDARD_STARTFILE_PREFIX_2
1499 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1502 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1503 #undef MD_EXEC_PREFIX
1504 #undef MD_STARTFILE_PREFIX
1505 #undef MD_STARTFILE_PREFIX_1
1508 /* If no prefixes defined, use the null string, which will disable them. */
1509 #ifndef MD_EXEC_PREFIX
1510 #define MD_EXEC_PREFIX ""
1512 #ifndef MD_STARTFILE_PREFIX
1513 #define MD_STARTFILE_PREFIX ""
1515 #ifndef MD_STARTFILE_PREFIX_1
1516 #define MD_STARTFILE_PREFIX_1 ""
1519 /* These directories are locations set at configure-time based on the
1520 --prefix option provided to configure. Their initializers are
1521 defined in Makefile.in. These paths are not *directly* used when
1522 gcc_exec_prefix is set because, in that case, we know where the
1523 compiler has been installed, and use paths relative to that
1524 location instead. */
1525 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1526 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1527 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1528 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1530 /* For native compilers, these are well-known paths containing
1531 components that may be provided by the system. For cross
1532 compilers, these paths are not used. */
1533 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1534 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1535 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1536 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1537 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1538 static const char *const standard_startfile_prefix_1
1539 = STANDARD_STARTFILE_PREFIX_1
;
1540 static const char *const standard_startfile_prefix_2
1541 = STANDARD_STARTFILE_PREFIX_2
;
1543 /* A relative path to be used in finding the location of tools
1544 relative to the driver. */
1545 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1547 /* Subdirectory to use for locating libraries. Set by
1548 set_multilib_dir based on the compilation options. */
1550 static const char *multilib_dir
;
1552 /* Subdirectory to use for locating libraries in OS conventions. Set by
1553 set_multilib_dir based on the compilation options. */
1555 static const char *multilib_os_dir
;
1557 /* Structure to keep track of the specs that have been defined so far.
1558 These are accessed using %(specname) or %[specname] in a compiler
1563 /* The following 2 fields must be first */
1564 /* to allow EXTRA_SPECS to be initialized */
1565 const char *name
; /* name of the spec. */
1566 const char *ptr
; /* available ptr if no static pointer */
1568 /* The following fields are not initialized */
1569 /* by EXTRA_SPECS */
1570 const char **ptr_spec
; /* pointer to the spec itself. */
1571 struct spec_list
*next
; /* Next spec in linked list. */
1572 int name_len
; /* length of the name */
1573 int alloc_p
; /* whether string was allocated */
1576 #define INIT_STATIC_SPEC(NAME,PTR) \
1577 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1579 /* List of statically defined specs. */
1580 static struct spec_list static_specs
[] =
1582 INIT_STATIC_SPEC ("asm", &asm_spec
),
1583 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1584 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1585 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1586 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1587 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1588 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1589 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1590 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1591 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1592 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1593 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1594 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1595 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1596 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1597 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1598 INIT_STATIC_SPEC ("link", &link_spec
),
1599 INIT_STATIC_SPEC ("lib", &lib_spec
),
1600 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1601 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1602 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1603 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1604 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1605 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1606 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1607 INIT_STATIC_SPEC ("version", &compiler_version
),
1608 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1609 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1610 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1611 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1612 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1613 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1614 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1615 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1616 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1617 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1618 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1619 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1620 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1621 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1622 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1625 #ifdef EXTRA_SPECS /* additional specs needed */
1626 /* Structure to keep track of just the first two args of a spec_list.
1627 That is all that the EXTRA_SPECS macro gives us. */
1630 const char *const name
;
1631 const char *const ptr
;
1634 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1635 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1638 /* List of dynamically allocates specs that have been defined so far. */
1640 static struct spec_list
*specs
= (struct spec_list
*) 0;
1642 /* List of static spec functions. */
1644 static const struct spec_function static_spec_functions
[] =
1646 { "getenv", getenv_spec_function
},
1647 { "if-exists", if_exists_spec_function
},
1648 { "if-exists-else", if_exists_else_spec_function
},
1649 { "replace-outfile", replace_outfile_spec_function
},
1650 { "version-compare", version_compare_spec_function
},
1651 { "include", include_spec_function
},
1652 { "print-asm-header", print_asm_header_spec_function
},
1653 #ifdef EXTRA_SPEC_FUNCTIONS
1654 EXTRA_SPEC_FUNCTIONS
1659 static int processing_spec_function
;
1661 /* Add appropriate libgcc specs to OBSTACK, taking into account
1662 various permutations of -shared-libgcc, -shared, and such. */
1664 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1666 #ifndef USE_LD_AS_NEEDED
1667 #define USE_LD_AS_NEEDED 0
1671 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1672 const char *static_name
, const char *eh_name
)
1676 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1677 "%{!static:%{!static-libgcc:"
1678 #if USE_LD_AS_NEEDED
1679 "%{!shared-libgcc:",
1680 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1683 shared_name
, "%{!shared: ", static_name
, "}"
1687 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1688 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1692 "%{shared-libgcc:", shared_name
, "}"
1693 "%{!shared-libgcc:", static_name
, "}"
1696 "%{shared:", shared_name
, "}"
1701 obstack_grow (obstack
, buf
, strlen (buf
));
1704 #endif /* ENABLE_SHARED_LIBGCC */
1706 /* Initialize the specs lookup routines. */
1711 struct spec_list
*next
= (struct spec_list
*) 0;
1712 struct spec_list
*sl
= (struct spec_list
*) 0;
1716 return; /* Already initialized. */
1719 notice ("Using built-in specs.\n");
1722 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1724 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1726 sl
= &extra_specs
[i
];
1727 sl
->name
= extra_specs_1
[i
].name
;
1728 sl
->ptr
= extra_specs_1
[i
].ptr
;
1730 sl
->name_len
= strlen (sl
->name
);
1731 sl
->ptr_spec
= &sl
->ptr
;
1736 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1738 sl
= &static_specs
[i
];
1743 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1744 /* ??? If neither -shared-libgcc nor --static-libgcc was
1745 seen, then we should be making an educated guess. Some proposed
1746 heuristics for ELF include:
1748 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1749 program will be doing dynamic loading, which will likely
1750 need the shared libgcc.
1752 (2) If "-ldl", then it's also a fair bet that we're doing
1755 (3) For each ET_DYN we're linking against (either through -lfoo
1756 or /some/path/foo.so), check to see whether it or one of
1757 its dependencies depends on a shared libgcc.
1761 If the runtime is fixed to look for program headers instead
1762 of calling __register_frame_info at all, for each object,
1763 use the shared libgcc if any EH symbol referenced.
1765 If crtstuff is fixed to not invoke __register_frame_info
1766 automatically, for each object, use the shared libgcc if
1767 any non-empty unwind section found.
1769 Doing any of this probably requires invoking an external program to
1770 do the actual object file scanning. */
1772 const char *p
= libgcc_spec
;
1775 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1776 when given the proper command line arguments. */
1779 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1781 init_gcc_specs (&obstack
,
1783 #ifdef USE_LIBUNWIND_EXCEPTIONS
1789 #ifdef USE_LIBUNWIND_EXCEPTIONS
1790 # ifdef HAVE_LD_STATIC_DYNAMIC
1791 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1801 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1803 /* Ug. We don't know shared library extensions. Hope that
1804 systems that use this form don't do shared libraries. */
1805 init_gcc_specs (&obstack
,
1809 #ifdef USE_LIBUNWIND_EXCEPTIONS
1818 obstack_1grow (&obstack
, *p
);
1819 in_sep
= (*p
== ' ');
1824 obstack_1grow (&obstack
, '\0');
1825 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1828 #ifdef USE_AS_TRADITIONAL_FORMAT
1829 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1831 static const char tf
[] = "--traditional-format ";
1832 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1833 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1834 asm_spec
= XOBFINISH (&obstack
, const char *);
1838 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1839 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1840 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1841 link_spec
= XOBFINISH (&obstack
, const char *);
1847 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1848 removed; If the spec starts with a + then SPEC is added to the end of the
1852 set_spec (const char *name
, const char *spec
)
1854 struct spec_list
*sl
;
1855 const char *old_spec
;
1856 int name_len
= strlen (name
);
1859 /* If this is the first call, initialize the statically allocated specs. */
1862 struct spec_list
*next
= (struct spec_list
*) 0;
1863 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1865 sl
= &static_specs
[i
];
1872 /* See if the spec already exists. */
1873 for (sl
= specs
; sl
; sl
= sl
->next
)
1874 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1879 /* Not found - make it. */
1880 sl
= XNEW (struct spec_list
);
1881 sl
->name
= xstrdup (name
);
1882 sl
->name_len
= name_len
;
1883 sl
->ptr_spec
= &sl
->ptr
;
1885 *(sl
->ptr_spec
) = "";
1890 old_spec
= *(sl
->ptr_spec
);
1891 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1892 ? concat (old_spec
, spec
+ 1, NULL
)
1897 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1900 /* Free the old spec. */
1901 if (old_spec
&& sl
->alloc_p
)
1902 free (CONST_CAST(char *, old_spec
));
1907 /* Accumulate a command (program name and args), and run it. */
1909 /* Vector of pointers to arguments in the current line of specifications. */
1911 static const char **argbuf
;
1913 /* Number of elements allocated in argbuf. */
1915 static int argbuf_length
;
1917 /* Number of elements in argbuf currently in use (containing args). */
1919 static int argbuf_index
;
1921 /* Position in the argbuf array containing the name of the output file
1922 (the value associated with the "-o" flag). */
1924 static int have_o_argbuf_index
= 0;
1926 /* Were the options -c or -S passed. */
1927 static int have_c
= 0;
1929 /* Was the option -o passed. */
1930 static int have_o
= 0;
1932 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1933 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1936 static struct temp_name
{
1937 const char *suffix
; /* suffix associated with the code. */
1938 int length
; /* strlen (suffix). */
1939 int unique
; /* Indicates whether %g or %u/%U was used. */
1940 const char *filename
; /* associated filename. */
1941 int filename_length
; /* strlen (filename). */
1942 struct temp_name
*next
;
1945 /* Number of commands executed so far. */
1947 static int execution_count
;
1949 /* Number of commands that exited with a signal. */
1951 static int signal_count
;
1953 /* Name with which this program was invoked. */
1955 static const char *programname
;
1957 /* Allocate the argument vector. */
1963 argbuf
= XNEWVEC (const char *, argbuf_length
);
1966 /* Clear out the vector of arguments (after a command is executed). */
1974 /* Add one argument to the vector at the end.
1975 This is done when a space is seen or at the end of the line.
1976 If DELETE_ALWAYS is nonzero, the arg is a filename
1977 and the file should be deleted eventually.
1978 If DELETE_FAILURE is nonzero, the arg is a filename
1979 and the file should be deleted if this compilation fails. */
1982 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1984 if (argbuf_index
+ 1 == argbuf_length
)
1985 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
1987 argbuf
[argbuf_index
++] = arg
;
1988 argbuf
[argbuf_index
] = 0;
1990 if (strcmp (arg
, "-o") == 0)
1991 have_o_argbuf_index
= argbuf_index
;
1992 if (delete_always
|| delete_failure
)
1993 record_temp_file (arg
, delete_always
, delete_failure
);
1996 /* Load specs from a file name named FILENAME, replacing occurrences of
1997 various different types of line-endings, \r\n, \n\r and just \r, with
2001 load_specs (const char *filename
)
2005 struct stat statbuf
;
2012 notice ("Reading specs from %s\n", filename
);
2014 /* Open and stat the file. */
2015 desc
= open (filename
, O_RDONLY
, 0);
2017 pfatal_with_name (filename
);
2018 if (stat (filename
, &statbuf
) < 0)
2019 pfatal_with_name (filename
);
2021 /* Read contents of file into BUFFER. */
2022 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2023 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2025 pfatal_with_name (filename
);
2026 buffer
[readlen
] = 0;
2029 specs
= XNEWVEC (char, readlen
+ 1);
2031 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2037 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2039 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2053 /* Read compilation specs from a file named FILENAME,
2054 replacing the default ones.
2056 A suffix which starts with `*' is a definition for
2057 one of the machine-specific sub-specs. The "suffix" should be
2058 *asm, *cc1, *cpp, *link, *startfile, etc.
2059 The corresponding spec is stored in asm_spec, etc.,
2060 rather than in the `compilers' vector.
2062 Anything invalid in the file is a fatal error. */
2065 read_specs (const char *filename
, int main_p
)
2070 buffer
= load_specs (filename
);
2072 /* Scan BUFFER for specs, putting them in the vector. */
2078 char *in
, *out
, *p1
, *p2
, *p3
;
2080 /* Advance P in BUFFER to the next nonblank nocomment line. */
2081 p
= skip_whitespace (p
);
2085 /* Is this a special command that starts with '%'? */
2086 /* Don't allow this for the main specs file, since it would
2087 encourage people to overwrite it. */
2088 if (*p
== '%' && !main_p
)
2091 while (*p
&& *p
!= '\n')
2097 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2098 && (p1
[sizeof "%include" - 1] == ' '
2099 || p1
[sizeof "%include" - 1] == '\t'))
2103 p1
+= sizeof ("%include");
2104 while (*p1
== ' ' || *p1
== '\t')
2107 if (*p1
++ != '<' || p
[-2] != '>')
2108 fatal ("specs %%include syntax malformed after %ld characters",
2109 (long) (p1
- buffer
+ 1));
2112 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2113 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2116 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2117 && (p1
[sizeof "%include_noerr" - 1] == ' '
2118 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2122 p1
+= sizeof "%include_noerr";
2123 while (*p1
== ' ' || *p1
== '\t')
2126 if (*p1
++ != '<' || p
[-2] != '>')
2127 fatal ("specs %%include syntax malformed after %ld characters",
2128 (long) (p1
- buffer
+ 1));
2131 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2133 read_specs (new_filename
, FALSE
);
2134 else if (verbose_flag
)
2135 notice ("could not find specs file %s\n", p1
);
2138 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2139 && (p1
[sizeof "%rename" - 1] == ' '
2140 || p1
[sizeof "%rename" - 1] == '\t'))
2143 struct spec_list
*sl
;
2144 struct spec_list
*newsl
;
2146 /* Get original name. */
2147 p1
+= sizeof "%rename";
2148 while (*p1
== ' ' || *p1
== '\t')
2151 if (! ISALPHA ((unsigned char) *p1
))
2152 fatal ("specs %%rename syntax malformed after %ld characters",
2153 (long) (p1
- buffer
));
2156 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2159 if (*p2
!= ' ' && *p2
!= '\t')
2160 fatal ("specs %%rename syntax malformed after %ld characters",
2161 (long) (p2
- buffer
));
2165 while (*p2
== ' ' || *p2
== '\t')
2168 if (! ISALPHA ((unsigned char) *p2
))
2169 fatal ("specs %%rename syntax malformed after %ld characters",
2170 (long) (p2
- buffer
));
2172 /* Get new spec name. */
2174 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2178 fatal ("specs %%rename syntax malformed after %ld characters",
2179 (long) (p3
- buffer
));
2182 for (sl
= specs
; sl
; sl
= sl
->next
)
2183 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2187 fatal ("specs %s spec was not found to be renamed", p1
);
2189 if (strcmp (p1
, p2
) == 0)
2192 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2193 if (strcmp (newsl
->name
, p2
) == 0)
2194 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2199 notice ("rename spec %s to %s\n", p1
, p2
);
2201 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2205 set_spec (p2
, *(sl
->ptr_spec
));
2207 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2209 *(sl
->ptr_spec
) = "";
2214 fatal ("specs unknown %% command after %ld characters",
2215 (long) (p1
- buffer
));
2218 /* Find the colon that should end the suffix. */
2220 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2223 /* The colon shouldn't be missing. */
2225 fatal ("specs file malformed after %ld characters",
2226 (long) (p1
- buffer
));
2228 /* Skip back over trailing whitespace. */
2230 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2233 /* Copy the suffix to a string. */
2234 suffix
= save_string (p
, p2
- p
);
2235 /* Find the next line. */
2236 p
= skip_whitespace (p1
+ 1);
2238 fatal ("specs file malformed after %ld characters",
2239 (long) (p
- buffer
));
2242 /* Find next blank line or end of string. */
2243 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2246 /* Specs end at the blank line and do not include the newline. */
2247 spec
= save_string (p
, p1
- p
);
2250 /* Delete backslash-newline sequences from the spec. */
2255 if (in
[0] == '\\' && in
[1] == '\n')
2257 else if (in
[0] == '#')
2258 while (*in
&& *in
!= '\n')
2266 if (suffix
[0] == '*')
2268 if (! strcmp (suffix
, "*link_command"))
2269 link_command_spec
= spec
;
2271 set_spec (suffix
+ 1, spec
);
2275 /* Add this pair to the vector. */
2277 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2279 compilers
[n_compilers
].suffix
= suffix
;
2280 compilers
[n_compilers
].spec
= spec
;
2282 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2286 link_command_spec
= spec
;
2289 if (link_command_spec
== 0)
2290 fatal ("spec file has no spec for linking");
2293 /* Record the names of temporary files we tell compilers to write,
2294 and delete them at the end of the run. */
2296 /* This is the common prefix we use to make temp file names.
2297 It is chosen once for each run of this program.
2298 It is substituted into a spec by %g or %j.
2299 Thus, all temp file names contain this prefix.
2300 In practice, all temp file names start with this prefix.
2302 This prefix comes from the envvar TMPDIR if it is defined;
2303 otherwise, from the P_tmpdir macro if that is defined;
2304 otherwise, in /usr/tmp or /tmp;
2305 or finally the current directory if all else fails. */
2307 static const char *temp_filename
;
2309 /* Length of the prefix. */
2311 static int temp_filename_length
;
2313 /* Define the list of temporary files to delete. */
2318 struct temp_file
*next
;
2321 /* Queue of files to delete on success or failure of compilation. */
2322 static struct temp_file
*always_delete_queue
;
2323 /* Queue of files to delete on failure of compilation. */
2324 static struct temp_file
*failure_delete_queue
;
2326 /* Record FILENAME as a file to be deleted automatically.
2327 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2328 otherwise delete it in any case.
2329 FAIL_DELETE nonzero means delete it if a compilation step fails;
2330 otherwise delete it in any case. */
2333 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2335 char *const name
= xstrdup (filename
);
2339 struct temp_file
*temp
;
2340 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2341 if (! strcmp (name
, temp
->name
))
2344 temp
= XNEW (struct temp_file
);
2345 temp
->next
= always_delete_queue
;
2347 always_delete_queue
= temp
;
2354 struct temp_file
*temp
;
2355 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2356 if (! strcmp (name
, temp
->name
))
2359 temp
= XNEW (struct temp_file
);
2360 temp
->next
= failure_delete_queue
;
2362 failure_delete_queue
= temp
;
2368 /* Delete all the temporary files whose names we previously recorded. */
2370 #ifndef DELETE_IF_ORDINARY
2371 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2374 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2375 if (unlink (NAME) < 0) \
2377 perror_with_name (NAME); \
2382 delete_if_ordinary (const char *name
)
2388 printf ("Delete %s? (y or n) ", name
);
2392 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2395 if (i
== 'y' || i
== 'Y')
2397 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2401 delete_temp_files (void)
2403 struct temp_file
*temp
;
2405 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2406 delete_if_ordinary (temp
->name
);
2407 always_delete_queue
= 0;
2410 /* Delete all the files to be deleted on error. */
2413 delete_failure_queue (void)
2415 struct temp_file
*temp
;
2417 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2418 delete_if_ordinary (temp
->name
);
2422 clear_failure_queue (void)
2424 failure_delete_queue
= 0;
2427 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2429 If DO_MULTI is true iterate over the paths twice, first with multilib
2430 suffix then without, otherwise iterate over the paths once without
2431 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2432 to avoid visiting the same path twice, but we could do better. For
2433 instance, /usr/lib/../lib is considered different from /usr/lib.
2434 At least EXTRA_SPACE chars past the end of the path passed to
2435 CALLBACK are available for use by the callback.
2436 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2438 Returns the value returned by CALLBACK. */
2441 for_each_path (const struct path_prefix
*paths
,
2444 void *(*callback
) (char *, void *),
2445 void *callback_info
)
2447 struct prefix_list
*pl
;
2448 const char *multi_dir
= NULL
;
2449 const char *multi_os_dir
= NULL
;
2450 const char *multi_suffix
;
2451 const char *just_multi_suffix
;
2454 bool skip_multi_dir
= false;
2455 bool skip_multi_os_dir
= false;
2457 multi_suffix
= machine_suffix
;
2458 just_multi_suffix
= just_machine_suffix
;
2459 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2461 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2462 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2463 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2465 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2466 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2470 size_t multi_dir_len
= 0;
2471 size_t multi_os_dir_len
= 0;
2473 size_t just_suffix_len
;
2477 multi_dir_len
= strlen (multi_dir
);
2479 multi_os_dir_len
= strlen (multi_os_dir
);
2480 suffix_len
= strlen (multi_suffix
);
2481 just_suffix_len
= strlen (just_multi_suffix
);
2485 len
= paths
->max_len
+ extra_space
+ 1;
2486 if (suffix_len
> multi_os_dir_len
)
2489 len
+= multi_os_dir_len
;
2490 path
= XNEWVEC (char, len
);
2493 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2495 len
= strlen (pl
->prefix
);
2496 memcpy (path
, pl
->prefix
, len
);
2498 /* Look first in MACHINE/VERSION subdirectory. */
2499 if (!skip_multi_dir
)
2501 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2502 ret
= callback (path
, callback_info
);
2507 /* Some paths are tried with just the machine (ie. target)
2508 subdir. This is used for finding as, ld, etc. */
2510 && pl
->require_machine_suffix
== 2)
2512 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2513 ret
= callback (path
, callback_info
);
2518 /* Now try the base path. */
2519 if (!pl
->require_machine_suffix
2520 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2522 const char *this_multi
;
2523 size_t this_multi_len
;
2525 if (pl
->os_multilib
)
2527 this_multi
= multi_os_dir
;
2528 this_multi_len
= multi_os_dir_len
;
2532 this_multi
= multi_dir
;
2533 this_multi_len
= multi_dir_len
;
2537 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2541 ret
= callback (path
, callback_info
);
2549 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2552 /* Run through the paths again, this time without multilibs.
2553 Don't repeat any we have already seen. */
2556 free (CONST_CAST (char *, multi_dir
));
2558 free (CONST_CAST (char *, multi_suffix
));
2559 multi_suffix
= machine_suffix
;
2560 free (CONST_CAST (char *, just_multi_suffix
));
2561 just_multi_suffix
= just_machine_suffix
;
2564 skip_multi_dir
= true;
2567 free (CONST_CAST (char *, multi_os_dir
));
2568 multi_os_dir
= NULL
;
2571 skip_multi_os_dir
= true;
2576 free (CONST_CAST (char *, multi_dir
));
2577 free (CONST_CAST (char *, multi_suffix
));
2578 free (CONST_CAST (char *, just_multi_suffix
));
2581 free (CONST_CAST (char *, multi_os_dir
));
2587 /* Callback for build_search_list. Adds path to obstack being built. */
2589 struct add_to_obstack_info
{
2596 add_to_obstack (char *path
, void *data
)
2598 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2600 if (info
->check_dir
&& !is_directory (path
, false))
2603 if (!info
->first_time
)
2604 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2606 obstack_grow (info
->ob
, path
, strlen (path
));
2608 info
->first_time
= false;
2612 /* Add or change the value of an environment variable, outputting the
2613 change to standard error if in verbose mode. */
2615 xputenv (const char *string
)
2618 notice ("%s\n", string
);
2619 putenv (CONST_CAST (char *, string
));
2622 /* Build a list of search directories from PATHS.
2623 PREFIX is a string to prepend to the list.
2624 If CHECK_DIR_P is true we ensure the directory exists.
2625 If DO_MULTI is true, multilib paths are output first, then
2627 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2628 It is also used by the --print-search-dirs flag. */
2631 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2632 bool check_dir
, bool do_multi
)
2634 struct add_to_obstack_info info
;
2636 info
.ob
= &collect_obstack
;
2637 info
.check_dir
= check_dir
;
2638 info
.first_time
= true;
2640 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2641 obstack_1grow (&collect_obstack
, '=');
2643 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2645 obstack_1grow (&collect_obstack
, '\0');
2646 return XOBFINISH (&collect_obstack
, char *);
2649 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2653 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2656 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2659 /* Check whether NAME can be accessed in MODE. This is like access,
2660 except that it never considers directories to be executable. */
2663 access_check (const char *name
, int mode
)
2669 if (stat (name
, &st
) < 0
2670 || S_ISDIR (st
.st_mode
))
2674 return access (name
, mode
);
2677 /* Callback for find_a_file. Appends the file name to the directory
2678 path. If the resulting file exists in the right mode, return the
2679 full pathname to the file. */
2681 struct file_at_path_info
{
2690 file_at_path (char *path
, void *data
)
2692 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2693 size_t len
= strlen (path
);
2695 memcpy (path
+ len
, info
->name
, info
->name_len
);
2696 len
+= info
->name_len
;
2698 /* Some systems have a suffix for executable files.
2699 So try appending that first. */
2700 if (info
->suffix_len
)
2702 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2703 if (access_check (path
, info
->mode
) == 0)
2708 if (access_check (path
, info
->mode
) == 0)
2714 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2715 access to check permissions. If DO_MULTI is true, search multilib
2716 paths then non-multilib paths, otherwise do not search multilib paths.
2717 Return 0 if not found, otherwise return its name, allocated with malloc. */
2720 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2723 struct file_at_path_info info
;
2725 #ifdef DEFAULT_ASSEMBLER
2726 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2727 return xstrdup (DEFAULT_ASSEMBLER
);
2730 #ifdef DEFAULT_LINKER
2731 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2732 return xstrdup (DEFAULT_LINKER
);
2735 /* Determine the filename to execute (special case for absolute paths). */
2737 if (IS_ABSOLUTE_PATH (name
))
2739 if (access (name
, mode
) == 0)
2740 return xstrdup (name
);
2746 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2747 info
.name_len
= strlen (info
.name
);
2748 info
.suffix_len
= strlen (info
.suffix
);
2751 return (char*) for_each_path (pprefix
, do_multi
,
2752 info
.name_len
+ info
.suffix_len
,
2753 file_at_path
, &info
);
2756 /* Ranking of prefixes in the sort list. -B prefixes are put before
2759 enum path_prefix_priority
2761 PREFIX_PRIORITY_B_OPT
,
2762 PREFIX_PRIORITY_LAST
2765 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2766 order according to PRIORITY. Within each PRIORITY, new entries are
2769 If WARN is nonzero, we will warn if no file is found
2770 through this prefix. WARN should point to an int
2771 which will be set to 1 if this entry is used.
2773 COMPONENT is the value to be passed to update_path.
2775 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2776 the complete value of machine_suffix.
2777 2 means try both machine_suffix and just_machine_suffix. */
2780 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2781 const char *component
, /* enum prefix_priority */ int priority
,
2782 int require_machine_suffix
, int os_multilib
)
2784 struct prefix_list
*pl
, **prev
;
2787 for (prev
= &pprefix
->plist
;
2788 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2789 prev
= &(*prev
)->next
)
2792 /* Keep track of the longest prefix. */
2794 prefix
= update_path (prefix
, component
);
2795 len
= strlen (prefix
);
2796 if (len
> pprefix
->max_len
)
2797 pprefix
->max_len
= len
;
2799 pl
= XNEW (struct prefix_list
);
2800 pl
->prefix
= prefix
;
2801 pl
->require_machine_suffix
= require_machine_suffix
;
2802 pl
->priority
= priority
;
2803 pl
->os_multilib
= os_multilib
;
2805 /* Insert after PREV. */
2810 /* Same as add_prefix, but prepending target_system_root to prefix. */
2811 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2813 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2814 const char *component
,
2815 /* enum prefix_priority */ int priority
,
2816 int require_machine_suffix
, int os_multilib
)
2818 if (!IS_ABSOLUTE_PATH (prefix
))
2819 fatal ("system path '%s' is not absolute", prefix
);
2821 if (target_system_root
)
2823 if (target_sysroot_suffix
)
2824 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2825 prefix
= concat (target_system_root
, prefix
, NULL
);
2827 /* We have to override this because GCC's notion of sysroot
2828 moves along with GCC. */
2832 add_prefix (pprefix
, prefix
, component
, priority
,
2833 require_machine_suffix
, os_multilib
);
2836 /* Execute the command specified by the arguments on the current line of spec.
2837 When using pipes, this includes several piped-together commands
2838 with `|' between them.
2840 Return 0 if successful, -1 if failed. */
2846 int n_commands
; /* # of command. */
2848 struct pex_obj
*pex
;
2851 const char *prog
; /* program name. */
2852 const char **argv
; /* vector of args. */
2855 struct command
*commands
; /* each command buffer with above info. */
2857 gcc_assert (!processing_spec_function
);
2861 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2862 argbuf
[0] = (string
) ? string
: argbuf
[0];
2863 insert_wrapper (wrapper_string
);
2866 /* Count # of piped commands. */
2867 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2868 if (strcmp (argbuf
[i
], "|") == 0)
2871 /* Get storage for each command. */
2872 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2874 /* Split argbuf into its separate piped processes,
2875 and record info about each one.
2876 Also search for the programs that are to be run. */
2878 commands
[0].prog
= argbuf
[0]; /* first command. */
2879 commands
[0].argv
= &argbuf
[0];
2881 if (!wrapper_string
)
2883 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2884 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2887 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2888 if (strcmp (argbuf
[i
], "|") == 0)
2889 { /* each command. */
2890 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2891 fatal ("-pipe not supported");
2893 argbuf
[i
] = 0; /* termination of command args. */
2894 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2895 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2896 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2899 commands
[n_commands
].argv
[0] = string
;
2903 argbuf
[argbuf_index
] = 0;
2905 /* If -v, print what we are about to do, and maybe query. */
2909 /* For help listings, put a blank line between sub-processes. */
2910 if (print_help_list
)
2911 fputc ('\n', stderr
);
2913 /* Print each piped command as a separate line. */
2914 for (i
= 0; i
< n_commands
; i
++)
2916 const char *const *j
;
2918 if (verbose_only_flag
)
2920 for (j
= commands
[i
].argv
; *j
; j
++)
2923 fprintf (stderr
, " \"");
2924 for (p
= *j
; *p
; ++p
)
2926 if (*p
== '"' || *p
== '\\' || *p
== '$')
2927 fputc ('\\', stderr
);
2930 fputc ('"', stderr
);
2934 for (j
= commands
[i
].argv
; *j
; j
++)
2935 fprintf (stderr
, " %s", *j
);
2937 /* Print a pipe symbol after all but the last command. */
2938 if (i
+ 1 != n_commands
)
2939 fprintf (stderr
, " |");
2940 fprintf (stderr
, "\n");
2943 if (verbose_only_flag
!= 0)
2945 /* verbose_only_flag should act as if the spec was
2946 executed, so increment execution_count before
2947 returning. This prevents spurious warnings about
2948 unused linker input files, etc. */
2953 notice ("\nGo ahead? (y or n) ");
2957 while (getchar () != '\n')
2960 if (i
!= 'y' && i
!= 'Y')
2965 #ifdef ENABLE_VALGRIND_CHECKING
2966 /* Run the each command through valgrind. To simplify prepending the
2967 path to valgrind and the option "-q" (for quiet operation unless
2968 something triggers), we allocate a separate argv array. */
2970 for (i
= 0; i
< n_commands
; i
++)
2976 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2979 argv
= XALLOCAVEC (const char *, argc
+ 3);
2981 argv
[0] = VALGRIND_PATH
;
2983 for (j
= 2; j
< argc
+ 2; j
++)
2984 argv
[j
] = commands
[i
].argv
[j
- 2];
2987 commands
[i
].argv
= argv
;
2988 commands
[i
].prog
= argv
[0];
2992 /* Run each piped subprocess. */
2994 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2995 programname
, temp_filename
);
2997 pfatal_with_name (_("pex_init failed"));
2999 for (i
= 0; i
< n_commands
; i
++)
3003 const char *string
= commands
[i
].argv
[0];
3005 errmsg
= pex_run (pex
,
3006 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3007 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3008 string
, CONST_CAST (char **, commands
[i
].argv
),
3017 pfatal_with_name (errmsg
);
3021 if (string
!= commands
[i
].prog
)
3022 free (CONST_CAST (char *, string
));
3027 /* Wait for all the subprocesses to finish. */
3031 struct pex_time
*times
= NULL
;
3034 statuses
= (int *) alloca (n_commands
* sizeof (int));
3035 if (!pex_get_status (pex
, n_commands
, statuses
))
3036 pfatal_with_name (_("failed to get exit status"));
3040 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3041 if (!pex_get_times (pex
, n_commands
, times
))
3042 pfatal_with_name (_("failed to get process times"));
3047 for (i
= 0; i
< n_commands
; ++i
)
3049 int status
= statuses
[i
];
3051 if (WIFSIGNALED (status
))
3054 /* SIGPIPE is a special case. It happens in -pipe mode
3055 when the compiler dies before the preprocessor is done,
3056 or the assembler dies before the compiler is done.
3057 There's generally been an error already, and this is
3058 just fallout. So don't generate another error unless
3059 we would otherwise have succeeded. */
3060 if (WTERMSIG (status
) == SIGPIPE
3061 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3069 Internal error: %s (program %s)\n\
3070 Please submit a full bug report.\n\
3071 See %s for instructions.",
3072 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3075 else if (WIFEXITED (status
)
3076 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3078 if (WEXITSTATUS (status
) > greatest_status
)
3079 greatest_status
= WEXITSTATUS (status
);
3085 struct pex_time
*pt
= ×
[i
];
3088 ut
= ((double) pt
->user_seconds
3089 + (double) pt
->user_microseconds
/ 1.0e6
);
3090 st
= ((double) pt
->system_seconds
3091 + (double) pt
->system_microseconds
/ 1.0e6
);
3094 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3102 /* Find all the switches given to us
3103 and make a vector describing them.
3104 The elements of the vector are strings, one per switch given.
3105 If a switch uses following arguments, then the `part1' field
3106 is the switch itself and the `args' field
3107 is a null-terminated vector containing the following arguments.
3108 Bits in the `live_cond' field are:
3109 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3110 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3111 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3112 The `validated' field is nonzero if any spec has looked at this switch;
3113 if it remains zero at the end of the run, it must be meaningless. */
3115 #define SWITCH_LIVE 0x1
3116 #define SWITCH_FALSE 0x2
3117 #define SWITCH_IGNORE 0x4
3123 unsigned int live_cond
;
3124 unsigned char validated
;
3125 unsigned char ordering
;
3128 static struct switchstr
*switches
;
3130 static int n_switches
;
3132 /* Language is one of three things:
3134 1) The name of a real programming language.
3135 2) NULL, indicating that no one has figured out
3137 3) '*', indicating that the file should be passed
3142 const char *language
;
3143 struct compiler
*incompiler
;
3148 /* Also a vector of input files specified. */
3150 static struct infile
*infiles
;
3154 /* True if multiple input files are being compiled to a single
3157 static bool combine_inputs
;
3159 /* This counts the number of libraries added by lang_specific_driver, so that
3160 we can tell if there were any user supplied any files or libraries. */
3162 static int added_libraries
;
3164 /* And a vector of corresponding output files is made up later. */
3166 const char **outfiles
;
3168 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3170 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3171 is true if we should look for an executable suffix. DO_OBJ
3172 is true if we should look for an object suffix. */
3175 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3176 int do_obj ATTRIBUTE_UNUSED
)
3178 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3186 len
= strlen (name
);
3188 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3189 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3190 if (do_obj
&& len
> 2
3191 && name
[len
- 2] == '.'
3192 && name
[len
- 1] == 'o')
3194 obstack_grow (&obstack
, name
, len
- 2);
3195 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3196 name
= XOBFINISH (&obstack
, const char *);
3200 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3201 /* If there is no filetype, make it the executable suffix (which includes
3202 the "."). But don't get confused if we have just "-o". */
3203 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3206 for (i
= len
- 1; i
>= 0; i
--)
3207 if (IS_DIR_SEPARATOR (name
[i
]))
3210 for (i
++; i
< len
; i
++)
3214 obstack_grow (&obstack
, name
, len
);
3215 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3216 strlen (TARGET_EXECUTABLE_SUFFIX
));
3217 name
= XOBFINISH (&obstack
, const char *);
3224 /* Display the command line switches accepted by gcc. */
3228 printf (_("Usage: %s [options] file...\n"), programname
);
3229 fputs (_("Options:\n"), stdout
);
3231 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3232 fputs (_(" --help Display this information\n"), stdout
);
3233 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3234 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3235 fputs (_(" Display specific types of command line options\n"), stdout
);
3237 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3238 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3239 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3240 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3241 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3242 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3243 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3244 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3245 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3247 -print-multi-lib Display the mapping between command line options and\n\
3248 multiple library search directories\n"), stdout
);
3249 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3250 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3251 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3252 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3253 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3254 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3255 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3256 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3257 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3258 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3259 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3260 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3261 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3262 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3263 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3265 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3266 and libraries\n"), stdout
);
3267 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3268 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3269 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3270 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3271 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3272 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3273 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3274 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3275 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3277 -x <language> Specify the language of the following input files\n\
3278 Permissible languages include: c c++ assembler none\n\
3279 'none' means revert to the default behavior of\n\
3280 guessing the language based on the file's extension\n\
3284 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3285 passed on to the various sub-processes invoked by %s. In order to pass\n\
3286 other options on to these processes the -W<letter> options must be used.\n\
3289 /* The rest of the options are displayed by invocations of the various
3294 add_preprocessor_option (const char *option
, int len
)
3296 n_preprocessor_options
++;
3298 if (! preprocessor_options
)
3299 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3301 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3302 n_preprocessor_options
);
3304 preprocessor_options
[n_preprocessor_options
- 1] =
3305 save_string (option
, len
);
3309 add_assembler_option (const char *option
, int len
)
3311 n_assembler_options
++;
3313 if (! assembler_options
)
3314 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3316 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3317 n_assembler_options
);
3319 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3323 add_linker_option (const char *option
, int len
)
3327 if (! linker_options
)
3328 linker_options
= XNEWVEC (char *, n_linker_options
);
3330 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3332 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3335 /* Create the vector `switches' and its contents.
3336 Store its length in `n_switches'. */
3339 process_command (int argc
, const char **argv
)
3344 const char *spec_lang
= 0;
3345 int last_language_n_infiles
;
3346 int lang_n_infiles
= 0;
3347 #ifdef MODIFY_TARGET_NAME
3348 int is_modify_target_name
;
3351 const char *tooldir_prefix
;
3353 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3357 added_libraries
= 0;
3359 /* Figure compiler version from version string. */
3361 compiler_version
= temp1
= xstrdup (version_string
);
3363 for (; *temp1
; ++temp1
)
3372 /* If there is a -V or -b option (or both), process it now, before
3373 trying to interpret the rest of the command line.
3374 Use heuristic that all configuration names must have at least
3375 one dash '-'. This allows us to pass options starting with -b. */
3376 if (argc
> 1 && argv
[1][0] == '-'
3377 && (argv
[1][1] == 'V' ||
3378 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3380 const char *new_version
= DEFAULT_TARGET_VERSION
;
3381 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3382 const char *progname
= argv
[0];
3387 while (argc
> 1 && argv
[1][0] == '-'
3388 && (argv
[1][1] == 'V' ||
3389 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3391 char opt
= argv
[1][1];
3393 if (argv
[1][2] != '\0')
3406 fatal ("'-%c' option must have argument", opt
);
3413 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3414 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3416 new_argv0
= XDUPVAR (char, progname
, baselen
,
3417 baselen
+ concat_length (new_version
, new_machine
,
3418 "-gcc-", NULL
) + 1);
3419 strcpy (new_argv0
+ baselen
, new_machine
);
3420 strcat (new_argv0
, "-gcc-");
3421 strcat (new_argv0
, new_version
);
3423 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3424 new_argv
[0] = new_argv0
;
3426 execvp (new_argv0
, new_argv
);
3427 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3430 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3431 see if we can create it from the pathname specified in argv[0]. */
3433 gcc_libexec_prefix
= standard_libexec_prefix
;
3435 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3436 if (!gcc_exec_prefix
)
3438 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3439 standard_exec_prefix
);
3440 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3441 standard_bindir_prefix
,
3442 standard_libexec_prefix
);
3443 if (gcc_exec_prefix
)
3444 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3448 /* make_relative_prefix requires a program name, but
3449 GCC_EXEC_PREFIX is typically a directory name with a trailing
3450 / (which is ignored by make_relative_prefix), so append a
3452 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3453 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3454 standard_exec_prefix
,
3455 standard_libexec_prefix
);
3457 /* The path is unrelocated, so fallback to the original setting. */
3458 if (!gcc_libexec_prefix
)
3459 gcc_libexec_prefix
= standard_libexec_prefix
;
3465 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3466 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3467 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3469 if (gcc_exec_prefix
)
3471 int len
= strlen (gcc_exec_prefix
);
3473 if (len
> (int) sizeof ("/lib/gcc/") - 1
3474 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3476 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3477 if (IS_DIR_SEPARATOR (*temp
)
3478 && strncmp (temp
+ 1, "lib", 3) == 0
3479 && IS_DIR_SEPARATOR (temp
[4])
3480 && strncmp (temp
+ 5, "gcc", 3) == 0)
3481 len
-= sizeof ("/lib/gcc/") - 1;
3484 set_std_prefix (gcc_exec_prefix
, len
);
3485 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3486 PREFIX_PRIORITY_LAST
, 0, 0);
3487 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3488 PREFIX_PRIORITY_LAST
, 0, 0);
3491 /* COMPILER_PATH and LIBRARY_PATH have values
3492 that are lists of directory names with colons. */
3494 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3497 const char *startp
, *endp
;
3498 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3500 startp
= endp
= temp
;
3503 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3505 strncpy (nstore
, startp
, endp
- startp
);
3507 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3508 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3510 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3511 nstore
[endp
- startp
+ 1] = 0;
3514 nstore
[endp
- startp
] = 0;
3515 add_prefix (&exec_prefixes
, nstore
, 0,
3516 PREFIX_PRIORITY_LAST
, 0, 0);
3517 add_prefix (&include_prefixes
, nstore
, 0,
3518 PREFIX_PRIORITY_LAST
, 0, 0);
3521 endp
= startp
= endp
+ 1;
3528 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3529 if (temp
&& *cross_compile
== '0')
3531 const char *startp
, *endp
;
3532 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3534 startp
= endp
= temp
;
3537 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3539 strncpy (nstore
, startp
, endp
- startp
);
3541 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3542 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3544 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3545 nstore
[endp
- startp
+ 1] = 0;
3548 nstore
[endp
- startp
] = 0;
3549 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3550 PREFIX_PRIORITY_LAST
, 0, 1);
3553 endp
= startp
= endp
+ 1;
3560 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3561 GET_ENVIRONMENT (temp
, "LPATH");
3562 if (temp
&& *cross_compile
== '0')
3564 const char *startp
, *endp
;
3565 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3567 startp
= endp
= temp
;
3570 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3572 strncpy (nstore
, startp
, endp
- startp
);
3574 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3575 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3577 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3578 nstore
[endp
- startp
+ 1] = 0;
3581 nstore
[endp
- startp
] = 0;
3582 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3583 PREFIX_PRIORITY_LAST
, 0, 1);
3586 endp
= startp
= endp
+ 1;
3593 /* Convert new-style -- options to old-style. */
3594 translate_options (&argc
, (const char *const **) &argv
);
3596 /* Do language-specific adjustment/addition of flags. */
3597 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3599 /* Scan argv twice. Here, the first time, just count how many switches
3600 there will be in their vector, and how many input files in theirs.
3601 Here we also parse the switches that cc itself uses (e.g. -v). */
3603 for (i
= 1; i
< argc
; i
++)
3605 if (! strcmp (argv
[i
], "-dumpspecs"))
3607 struct spec_list
*sl
;
3609 for (sl
= specs
; sl
; sl
= sl
->next
)
3610 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3611 if (link_command_spec
)
3612 printf ("*link_command:\n%s\n\n", link_command_spec
);
3615 else if (! strcmp (argv
[i
], "-dumpversion"))
3617 printf ("%s\n", spec_version
);
3620 else if (! strcmp (argv
[i
], "-dumpmachine"))
3622 printf ("%s\n", spec_machine
);
3625 else if (strcmp (argv
[i
], "-fversion") == 0)
3627 /* translate_options () has turned --version into -fversion. */
3628 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
3630 printf ("Copyright %s 2008 Free Software Foundation, Inc.\n",
3632 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3633 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3637 else if (strcmp (argv
[i
], "-fhelp") == 0)
3639 /* translate_options () has turned --help into -fhelp. */
3640 print_help_list
= 1;
3642 /* We will be passing a dummy file on to the sub-processes. */
3646 /* CPP driver cannot obtain switch from cc1_options. */
3648 add_preprocessor_option ("--help", 6);
3649 add_assembler_option ("--help", 6);
3650 add_linker_option ("--help", 6);
3652 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3654 /* translate_options () has turned --help into -fhelp. */
3655 print_subprocess_help
= 2;
3657 /* We will be passing a dummy file on to the sub-processes. */
3661 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3663 /* translate_options() has turned --target-help into -ftarget-help. */
3664 print_subprocess_help
= 1;
3666 /* We will be passing a dummy file on to the sub-processes. */
3670 /* CPP driver cannot obtain switch from cc1_options. */
3672 add_preprocessor_option ("--target-help", 13);
3673 add_assembler_option ("--target-help", 13);
3674 add_linker_option ("--target-help", 13);
3676 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3678 pass_exit_codes
= 1;
3681 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3682 print_search_dirs
= 1;
3683 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3684 print_file_name
= "libgcc.a";
3685 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3686 print_file_name
= argv
[i
] + 17;
3687 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3688 print_prog_name
= argv
[i
] + 17;
3689 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3690 print_multi_lib
= 1;
3691 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3692 print_multi_directory
= 1;
3693 else if (! strcmp (argv
[i
], "-print-sysroot"))
3695 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3696 print_multi_os_directory
= 1;
3697 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3698 print_sysroot_headers_suffix
= 1;
3699 else if (! strncmp (argv
[i
], "-Wa,", 4))
3702 /* Pass the rest of this option to the assembler. */
3704 /* Split the argument at commas. */
3706 for (j
= 4; argv
[i
][j
]; j
++)
3707 if (argv
[i
][j
] == ',')
3709 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3713 /* Record the part after the last comma. */
3714 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3716 else if (! strncmp (argv
[i
], "-Wp,", 4))
3719 /* Pass the rest of this option to the preprocessor. */
3721 /* Split the argument at commas. */
3723 for (j
= 4; argv
[i
][j
]; j
++)
3724 if (argv
[i
][j
] == ',')
3726 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3730 /* Record the part after the last comma. */
3731 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3733 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3734 /* The +e options to the C++ front-end. */
3736 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3739 /* Split the argument at commas. */
3740 for (j
= 3; argv
[i
][j
]; j
++)
3741 n_infiles
+= (argv
[i
][j
] == ',');
3743 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3746 fatal ("argument to '-Xlinker' is missing");
3751 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3754 fatal ("argument to '-Xpreprocessor' is missing");
3756 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3758 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3761 fatal ("argument to '-Xassembler' is missing");
3763 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3765 else if (strcmp (argv
[i
], "-l") == 0)
3768 fatal ("argument to '-l' is missing");
3773 else if (strncmp (argv
[i
], "-l", 2) == 0)
3775 else if (strcmp (argv
[i
], "-save-temps") == 0)
3777 save_temps_flag
= 1;
3780 else if (strcmp (argv
[i
], "-combine") == 0)
3785 else if (strcmp (argv
[i
], "-specs") == 0)
3787 struct user_specs
*user
= XNEW (struct user_specs
);
3789 fatal ("argument to '-specs' is missing");
3791 user
->next
= (struct user_specs
*) 0;
3792 user
->filename
= argv
[i
];
3793 if (user_specs_tail
)
3794 user_specs_tail
->next
= user
;
3796 user_specs_head
= user
;
3797 user_specs_tail
= user
;
3799 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3801 struct user_specs
*user
= XNEW (struct user_specs
);
3802 if (strlen (argv
[i
]) == 7)
3803 fatal ("argument to '-specs=' is missing");
3805 user
->next
= (struct user_specs
*) 0;
3806 user
->filename
= argv
[i
] + 7;
3807 if (user_specs_tail
)
3808 user_specs_tail
->next
= user
;
3810 user_specs_head
= user
;
3811 user_specs_tail
= user
;
3813 else if (strcmp (argv
[i
], "-time") == 0)
3815 else if (strcmp (argv
[i
], "-pipe") == 0)
3817 /* -pipe has to go into the switches array as well as
3822 else if (strcmp (argv
[i
], "-wrapper") == 0)
3825 fatal ("argument to '-wrapper' is missing");
3827 wrapper_string
= argv
[i
];
3831 else if (strcmp (argv
[i
], "-###") == 0)
3833 /* This is similar to -v except that there is no execution
3834 of the commands and the echoed arguments are quoted. It
3835 is intended for use in shell scripts to capture the
3836 driver-generated command line. */
3837 verbose_only_flag
++;
3840 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3842 const char *p
= &argv
[i
][1];
3848 if (NULL
== strchr(argv
[i
] + 2, '-'))
3853 fatal ("'-%c' must come at the start of the command line", c
);
3861 if (p
[1] == 0 && i
+ 1 == argc
)
3862 fatal ("argument to '-B' is missing");
3868 len
= strlen (value
);
3870 /* Catch the case where the user has forgotten to append a
3871 directory separator to the path. Note, they may be using
3872 -B to add an executable name prefix, eg "i386-elf-", in
3873 order to distinguish between multiple installations of
3874 GCC in the same directory. Hence we must check to see
3875 if appending a directory separator actually makes a
3876 valid directory name. */
3877 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3878 && is_directory (value
, false))
3880 char *tmp
= XNEWVEC (char, len
+ 2);
3881 strcpy (tmp
, value
);
3882 tmp
[len
] = DIR_SEPARATOR
;
3887 add_prefix (&exec_prefixes
, value
, NULL
,
3888 PREFIX_PRIORITY_B_OPT
, 0, 0);
3889 add_prefix (&startfile_prefixes
, value
, NULL
,
3890 PREFIX_PRIORITY_B_OPT
, 0, 0);
3891 add_prefix (&include_prefixes
, value
, NULL
,
3892 PREFIX_PRIORITY_B_OPT
, 0, 0);
3897 case 'v': /* Print our subcommands and print versions. */
3899 /* If they do anything other than exactly `-v', don't set
3900 verbose_flag; rather, continue on to give the error. */
3918 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3923 /* Forward scan, just in case -S or -c is specified
3930 if (argv
[j
][0] == '-')
3932 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3938 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3939 j
+= skip
- (argv
[j
][2] != 0);
3940 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3947 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3949 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3951 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3958 #ifdef MODIFY_TARGET_NAME
3959 is_modify_target_name
= 0;
3961 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3962 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3964 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
3965 + strlen (spec_machine
));
3968 int made_addition
= 0;
3970 is_modify_target_name
= 1;
3971 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3973 if (modify_target
[j
].add_del
== DELETE
3974 && (! strncmp (q
, modify_target
[j
].str
,
3975 strlen (modify_target
[j
].str
))))
3976 p
+= strlen (modify_target
[j
].str
);
3977 else if (modify_target
[j
].add_del
== ADD
3978 && ! made_addition
&& *p
== '-')
3980 for (r
= modify_target
[j
].str
; *r
!= 0; )
3988 spec_machine
= new_name
;
3991 if (is_modify_target_name
)
3997 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3998 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3999 else if (WORD_SWITCH_TAKES_ARG (p
))
4000 i
+= WORD_SWITCH_TAKES_ARG (p
);
4010 if (save_temps_flag
&& use_pipes
)
4012 /* -save-temps overrides -pipe, so that temp files are produced */
4013 if (save_temps_flag
)
4014 error ("warning: -pipe ignored because -save-temps specified");
4018 /* Set up the search paths. We add directories that we expect to
4019 contain GNU Toolchain components before directories specified by
4020 the machine description so that we will find GNU components (like
4021 the GNU assembler) before those of the host system. */
4023 /* If we don't know where the toolchain has been installed, use the
4024 configured-in locations. */
4025 if (!gcc_exec_prefix
)
4028 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4029 PREFIX_PRIORITY_LAST
, 1, 0);
4030 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4031 PREFIX_PRIORITY_LAST
, 2, 0);
4032 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4033 PREFIX_PRIORITY_LAST
, 2, 0);
4035 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4036 PREFIX_PRIORITY_LAST
, 1, 0);
4039 /* If not cross-compiling, search well-known system locations. */
4040 if (*cross_compile
== '0')
4043 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
4044 PREFIX_PRIORITY_LAST
, 2, 0);
4045 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4046 PREFIX_PRIORITY_LAST
, 2, 0);
4048 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4049 PREFIX_PRIORITY_LAST
, 1, 0);
4052 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4053 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4054 dir_separator_str
, NULL
);
4056 /* Look for tools relative to the location from which the driver is
4057 running, or, if that is not available, the configured prefix. */
4059 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4060 spec_machine
, dir_separator_str
,
4061 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4063 add_prefix (&exec_prefixes
,
4064 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4065 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4066 add_prefix (&startfile_prefixes
,
4067 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4068 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4070 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4071 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4072 then consider it to relocate with the rest of the GCC installation
4073 if GCC_EXEC_PREFIX is set.
4074 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4075 if (target_system_root
&& gcc_exec_prefix
)
4077 char *tmp_prefix
= make_relative_prefix (argv
[0],
4078 standard_bindir_prefix
,
4079 target_system_root
);
4080 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4082 target_system_root
= tmp_prefix
;
4083 target_system_root_changed
= 1;
4088 /* More prefixes are enabled in main, after we read the specs file
4089 and determine whether this is cross-compilation or not. */
4091 /* Then create the space for the vectors and scan again. */
4093 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4094 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4097 last_language_n_infiles
= -1;
4099 /* This, time, copy the text of each switch and store a pointer
4100 to the copy in the vector of switches.
4101 Store all the infiles in their vector. */
4103 for (i
= 1; i
< argc
; i
++)
4105 /* Just skip the switches that were handled by the preceding loop. */
4106 #ifdef MODIFY_TARGET_NAME
4107 is_modify_target_name
= 0;
4109 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4110 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4111 is_modify_target_name
= 1;
4113 if (is_modify_target_name
)
4117 if (! strncmp (argv
[i
], "-Wa,", 4))
4119 else if (! strncmp (argv
[i
], "-Wp,", 4))
4121 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4123 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4125 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4127 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4129 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4131 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4133 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4135 else if (! strcmp (argv
[i
], "-print-sysroot"))
4137 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4139 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4141 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4143 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4144 target_system_root_changed
= 1;
4146 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4148 /* Compensate for the +e options to the C++ front-end;
4149 they're there simply for cfront call-compatibility. We do
4150 some magic in default_compilers to pass them down properly.
4151 Note we deliberately start at the `+' here, to avoid passing
4152 -e0 or -e1 down into the linker. */
4153 switches
[n_switches
].part1
= &argv
[i
][0];
4154 switches
[n_switches
].args
= 0;
4155 switches
[n_switches
].live_cond
= 0;
4156 switches
[n_switches
].validated
= 0;
4159 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4162 /* Split the argument at commas. */
4164 for (j
= 4; argv
[i
][j
]; j
++)
4165 if (argv
[i
][j
] == ',')
4167 infiles
[n_infiles
].language
= "*";
4168 infiles
[n_infiles
++].name
4169 = save_string (argv
[i
] + prev
, j
- prev
);
4172 /* Record the part after the last comma. */
4173 infiles
[n_infiles
].language
= "*";
4174 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4176 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4178 infiles
[n_infiles
].language
= "*";
4179 infiles
[n_infiles
++].name
= argv
[++i
];
4181 /* Xassembler and Xpreprocessor were already handled in the first argv
4182 scan, so all we need to do here is ignore them and their argument. */
4183 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4185 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4187 else if (strcmp (argv
[i
], "-l") == 0)
4188 { /* POSIX allows separation of -l and the lib arg;
4189 canonicalize by concatenating -l with its arg */
4190 infiles
[n_infiles
].language
= "*";
4191 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4193 else if (strncmp (argv
[i
], "-l", 2) == 0)
4195 infiles
[n_infiles
].language
= "*";
4196 infiles
[n_infiles
++].name
= argv
[i
];
4198 else if (strcmp (argv
[i
], "-wrapper") == 0)
4200 else if (strcmp (argv
[i
], "-specs") == 0)
4202 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4204 else if (strcmp (argv
[i
], "-time") == 0)
4206 else if (strcmp (argv
[i
], "-###") == 0)
4208 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4210 const char *p
= &argv
[i
][1];
4215 if (p
[1] == 0 && i
+ 1 == argc
)
4216 fatal ("argument to '-x' is missing");
4218 spec_lang
= argv
[++i
];
4221 if (! strcmp (spec_lang
, "none"))
4222 /* Suppress the warning if -xnone comes after the last input
4223 file, because alternate command interfaces like g++ might
4224 find it useful to place -xnone after each input file. */
4227 last_language_n_infiles
= n_infiles
;
4230 switches
[n_switches
].part1
= p
;
4231 /* Deal with option arguments in separate argv elements. */
4232 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4233 || WORD_SWITCH_TAKES_ARG (p
))
4236 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4240 /* Count only the option arguments in separate argv elements. */
4241 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4243 if (i
+ n_args
>= argc
)
4244 fatal ("argument to '-%s' is missing", p
);
4245 switches
[n_switches
].args
4246 = XNEWVEC (const char *, n_args
+ 1);
4248 switches
[n_switches
].args
[j
++] = argv
[++i
];
4249 /* Null-terminate the vector. */
4250 switches
[n_switches
].args
[j
] = 0;
4252 else if (strchr (switches_need_spaces
, c
))
4254 /* On some systems, ld cannot handle some options without
4255 a space. So split the option from its argument. */
4256 char *part1
= XNEWVEC (char, 2);
4260 switches
[n_switches
].part1
= part1
;
4261 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4262 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4263 switches
[n_switches
].args
[1] = 0;
4266 switches
[n_switches
].args
= 0;
4268 switches
[n_switches
].live_cond
= 0;
4269 switches
[n_switches
].validated
= 0;
4270 switches
[n_switches
].ordering
= 0;
4271 /* These are always valid, since gcc.c itself understands the
4272 first four and gfortranspec.c understands -static-libgfortran. */
4273 if (!strcmp (p
, "save-temps")
4274 || !strcmp (p
, "static-libgcc")
4275 || !strcmp (p
, "shared-libgcc")
4276 || !strcmp (p
, "pipe")
4277 || !strcmp (p
, "static-libgfortran"))
4278 switches
[n_switches
].validated
= 1;
4281 char ch
= switches
[n_switches
].part1
[0];
4283 switches
[n_switches
].validated
= 1;
4289 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4290 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4293 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4295 perror_with_name (argv
[i
]);
4300 infiles
[n_infiles
].language
= spec_lang
;
4301 infiles
[n_infiles
++].name
= argv
[i
];
4306 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4307 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4309 /* Ensure we only invoke each subprocess once. */
4310 if (print_subprocess_help
|| print_help_list
)
4314 /* Create a dummy input file, so that we can pass
4315 the help option on to the various sub-processes. */
4316 infiles
[0].language
= "c";
4317 infiles
[0].name
= "help-dummy";
4320 switches
[n_switches
].part1
= 0;
4321 infiles
[n_infiles
].name
= 0;
4324 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4325 and place that in the environment. */
4328 set_collect_gcc_options (void)
4333 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4335 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4336 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4339 for (i
= 0; (int) i
< n_switches
; i
++)
4341 const char *const *args
;
4344 obstack_grow (&collect_obstack
, " ", 1);
4348 /* Ignore elided switches. */
4349 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4352 obstack_grow (&collect_obstack
, "'-", 2);
4353 q
= switches
[i
].part1
;
4354 while ((p
= strchr (q
, '\'')))
4356 obstack_grow (&collect_obstack
, q
, p
- q
);
4357 obstack_grow (&collect_obstack
, "'\\''", 4);
4360 obstack_grow (&collect_obstack
, q
, strlen (q
));
4361 obstack_grow (&collect_obstack
, "'", 1);
4363 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4365 obstack_grow (&collect_obstack
, " '", 2);
4367 while ((p
= strchr (q
, '\'')))
4369 obstack_grow (&collect_obstack
, q
, p
- q
);
4370 obstack_grow (&collect_obstack
, "'\\''", 4);
4373 obstack_grow (&collect_obstack
, q
, strlen (q
));
4374 obstack_grow (&collect_obstack
, "'", 1);
4377 obstack_grow (&collect_obstack
, "\0", 1);
4378 xputenv (XOBFINISH (&collect_obstack
, char *));
4381 /* Process a spec string, accumulating and running commands. */
4383 /* These variables describe the input file name.
4384 input_file_number is the index on outfiles of this file,
4385 so that the output file name can be stored for later use by %o.
4386 input_basename is the start of the part of the input file
4387 sans all directory names, and basename_length is the number
4388 of characters starting there excluding the suffix .c or whatever. */
4390 static const char *input_filename
;
4391 static int input_file_number
;
4392 size_t input_filename_length
;
4393 static int basename_length
;
4394 static int suffixed_basename_length
;
4395 static const char *input_basename
;
4396 static const char *input_suffix
;
4397 #ifndef HOST_LACKS_INODE_NUMBERS
4398 static struct stat input_stat
;
4400 static int input_stat_set
;
4402 /* The compiler used to process the current input file. */
4403 static struct compiler
*input_file_compiler
;
4405 /* These are variables used within do_spec and do_spec_1. */
4407 /* Nonzero if an arg has been started and not yet terminated
4408 (with space, tab or newline). */
4409 static int arg_going
;
4411 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4412 is a temporary file name. */
4413 static int delete_this_arg
;
4415 /* Nonzero means %w has been seen; the next arg to be terminated
4416 is the output file name of this compilation. */
4417 static int this_is_output_file
;
4419 /* Nonzero means %s has been seen; the next arg to be terminated
4420 is the name of a library file and we should try the standard
4421 search dirs for it. */
4422 static int this_is_library_file
;
4424 /* Nonzero means that the input of this command is coming from a pipe. */
4425 static int input_from_pipe
;
4427 /* Nonnull means substitute this for any suffix when outputting a switches
4429 static const char *suffix_subst
;
4431 /* If there is an argument being accumulated, terminate it and store it. */
4434 end_going_arg (void)
4440 obstack_1grow (&obstack
, 0);
4441 string
= XOBFINISH (&obstack
, const char *);
4442 if (this_is_library_file
)
4443 string
= find_file (string
);
4444 store_arg (string
, delete_this_arg
, this_is_output_file
);
4445 if (this_is_output_file
)
4446 outfiles
[input_file_number
] = string
;
4452 /* Parse the WRAPPER string which is a comma separated list of the command line
4453 and insert them into the beginning of argbuf. */
4456 insert_wrapper (const char *wrapper
)
4460 char *buf
= xstrdup (wrapper
);
4469 while ((p
= strchr (p
, ',')) != NULL
);
4471 if (argbuf_index
+ n
>= argbuf_length
)
4473 argbuf_length
= argbuf_length
* 2;
4474 while (argbuf_length
< argbuf_index
+ n
)
4476 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4478 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4479 argbuf
[i
+ n
] = argbuf
[i
];
4492 while ((p
= strchr (p
, ',')) != NULL
);
4493 gcc_assert (i
== n
);
4497 /* Process the spec SPEC and run the commands specified therein.
4498 Returns 0 if the spec is successfully processed; -1 if failed. */
4501 do_spec (const char *spec
)
4505 value
= do_spec_2 (spec
);
4507 /* Force out any unfinished command.
4508 If -pipe, this forces out the last command if it ended in `|'. */
4511 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4514 set_collect_gcc_options ();
4516 if (argbuf_index
> 0)
4524 do_spec_2 (const char *spec
)
4530 delete_this_arg
= 0;
4531 this_is_output_file
= 0;
4532 this_is_library_file
= 0;
4533 input_from_pipe
= 0;
4534 suffix_subst
= NULL
;
4536 result
= do_spec_1 (spec
, 0, NULL
);
4544 /* Process the given spec string and add any new options to the end
4545 of the switches/n_switches array. */
4548 do_option_spec (const char *name
, const char *spec
)
4550 unsigned int i
, value_count
, value_len
;
4551 const char *p
, *q
, *value
;
4552 char *tmp_spec
, *tmp_spec_p
;
4554 if (configure_default_options
[0].name
== NULL
)
4557 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4558 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4560 if (i
== ARRAY_SIZE (configure_default_options
))
4563 value
= configure_default_options
[i
].value
;
4564 value_len
= strlen (value
);
4566 /* Compute the size of the final spec. */
4569 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4575 /* Replace each %(VALUE) by the specified value. */
4576 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4577 + value_count
* (value_len
- strlen ("%(VALUE)")));
4578 tmp_spec_p
= tmp_spec
;
4580 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4582 memcpy (tmp_spec_p
, q
, p
- q
);
4583 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4584 memcpy (tmp_spec_p
, value
, value_len
);
4585 tmp_spec_p
+= value_len
;
4586 q
= p
+ strlen ("%(VALUE)");
4588 strcpy (tmp_spec_p
, q
);
4590 do_self_spec (tmp_spec
);
4593 /* Process the given spec string and add any new options to the end
4594 of the switches/n_switches array. */
4597 do_self_spec (const char *spec
)
4600 do_spec_1 (" ", 0, NULL
);
4602 if (argbuf_index
> 0)
4607 n_switches
+= argbuf_index
;
4608 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches
+ 1);
4610 switches
[n_switches
] = switches
[first
];
4611 for (i
= 0; i
< argbuf_index
; i
++)
4613 struct switchstr
*sw
;
4615 /* Each switch should start with '-'. */
4616 if (argbuf
[i
][0] != '-')
4617 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4619 sw
= &switches
[i
+ first
];
4620 sw
->part1
= &argbuf
[i
][1];
4629 /* Callback for processing %D and %I specs. */
4631 struct spec_path_info
{
4636 bool separate_options
;
4640 spec_path (char *path
, void *data
)
4642 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4646 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4649 if (info
->append_len
!= 0)
4651 len
= strlen (path
);
4652 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4655 if (!is_directory (path
, true))
4658 do_spec_1 (info
->option
, 1, NULL
);
4659 if (info
->separate_options
)
4660 do_spec_1 (" ", 0, NULL
);
4662 if (info
->append_len
== 0)
4664 len
= strlen (path
);
4665 save
= path
[len
- 1];
4666 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4667 path
[len
- 1] = '\0';
4670 do_spec_1 (path
, 1, NULL
);
4671 do_spec_1 (" ", 0, NULL
);
4673 /* Must not damage the original path. */
4674 if (info
->append_len
== 0)
4675 path
[len
- 1] = save
;
4680 /* Process the sub-spec SPEC as a portion of a larger spec.
4681 This is like processing a whole spec except that we do
4682 not initialize at the beginning and we do not supply a
4683 newline by default at the end.
4684 INSWITCH nonzero means don't process %-sequences in SPEC;
4685 in this case, % is treated as an ordinary character.
4686 This is used while substituting switches.
4687 INSWITCH nonzero also causes SPC not to terminate an argument.
4689 Value is zero unless a line was finished
4690 and the command on that line reported an error. */
4693 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4695 const char *p
= spec
;
4701 /* If substituting a switch, treat all chars like letters.
4702 Otherwise, NL, SPC, TAB and % are special. */
4703 switch (inswitch
? 'a' : c
)
4708 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4710 /* A `|' before the newline means use a pipe here,
4711 but only if -pipe was specified.
4712 Otherwise, execute now and don't pass the `|' as an arg. */
4715 input_from_pipe
= 1;
4722 set_collect_gcc_options ();
4724 if (argbuf_index
> 0)
4730 /* Reinitialize for a new command, and for a new argument. */
4733 delete_this_arg
= 0;
4734 this_is_output_file
= 0;
4735 this_is_library_file
= 0;
4736 input_from_pipe
= 0;
4743 obstack_1grow (&obstack
, c
);
4751 /* Reinitialize for a new argument. */
4752 delete_this_arg
= 0;
4753 this_is_output_file
= 0;
4754 this_is_library_file
= 0;
4761 fatal ("spec '%s' invalid", spec
);
4764 obstack_grow (&obstack
, input_basename
, basename_length
);
4769 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4774 delete_this_arg
= 2;
4777 /* Dump out the directories specified with LIBRARY_PATH,
4778 followed by the absolute directories
4779 that we search for startfiles. */
4782 struct spec_path_info info
;
4785 info
.append_len
= 0;
4786 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4787 /* Used on systems which record the specified -L dirs
4788 and use them to search for dynamic linking.
4789 Relative directories always come from -B,
4790 and it is better not to use them for searching
4791 at run time. In particular, stage1 loses. */
4792 info
.omit_relative
= true;
4794 info
.omit_relative
= false;
4796 info
.separate_options
= false;
4798 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4803 /* %efoo means report an error with `foo' as error message
4804 and don't execute any more commands for this file. */
4808 while (*p
!= 0 && *p
!= '\n')
4810 buf
= (char *) alloca (p
- q
+ 1);
4811 strncpy (buf
, q
, p
- q
);
4818 /* %nfoo means report a notice with `foo' on stderr. */
4822 while (*p
!= 0 && *p
!= '\n')
4824 buf
= (char *) alloca (p
- q
+ 1);
4825 strncpy (buf
, q
, p
- q
);
4827 notice ("%s\n", buf
);
4837 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4838 defined, and it is not a directory, and it is
4839 writable, use it. Otherwise, treat this like any
4840 other temporary file. */
4842 if ((!save_temps_flag
)
4843 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4844 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4846 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4847 strlen (HOST_BIT_BUCKET
));
4848 delete_this_arg
= 0;
4853 goto create_temp_file
;
4857 obstack_1grow (&obstack
, '-');
4858 delete_this_arg
= 0;
4861 /* consume suffix */
4862 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4864 if (p
[0] == '%' && p
[1] == 'O')
4869 goto create_temp_file
;
4873 /* consume suffix */
4874 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4876 if (p
[0] == '%' && p
[1] == 'O')
4881 goto create_temp_file
;
4887 struct temp_name
*t
;
4889 const char *suffix
= p
;
4890 char *saved_suffix
= NULL
;
4892 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4894 suffix_length
= p
- suffix
;
4895 if (p
[0] == '%' && p
[1] == 'O')
4898 /* We don't support extra suffix characters after %O. */
4899 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4900 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4901 if (suffix_length
== 0)
4902 suffix
= TARGET_OBJECT_SUFFIX
;
4906 = XNEWVEC (char, suffix_length
4907 + strlen (TARGET_OBJECT_SUFFIX
));
4908 strncpy (saved_suffix
, suffix
, suffix_length
);
4909 strcpy (saved_suffix
+ suffix_length
,
4910 TARGET_OBJECT_SUFFIX
);
4912 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4915 /* If the input_filename has the same suffix specified
4916 for the %g, %u, or %U, and -save-temps is specified,
4917 we could end up using that file as an intermediate
4918 thus clobbering the user's source file (.e.g.,
4919 gcc -save-temps foo.s would clobber foo.s with the
4920 output of cpp0). So check for this condition and
4921 generate a temp file as the intermediate. */
4923 if (save_temps_flag
)
4927 temp_filename_length
= basename_length
+ suffix_length
;
4928 tmp
= (char *) alloca (temp_filename_length
+ 1);
4929 strncpy (tmp
, input_basename
, basename_length
);
4930 strncpy (tmp
+ basename_length
, suffix
, suffix_length
);
4931 tmp
[temp_filename_length
] = '\0';
4932 temp_filename
= tmp
;
4933 if (strcmp (temp_filename
, input_filename
) != 0)
4935 #ifndef HOST_LACKS_INODE_NUMBERS
4936 struct stat st_temp
;
4938 /* Note, set_input() resets input_stat_set to 0. */
4939 if (input_stat_set
== 0)
4941 input_stat_set
= stat (input_filename
, &input_stat
);
4942 if (input_stat_set
>= 0)
4946 /* If we have the stat for the input_filename
4947 and we can do the stat for the temp_filename
4948 then the they could still refer to the same
4949 file if st_dev/st_ino's are the same. */
4950 if (input_stat_set
!= 1
4951 || stat (temp_filename
, &st_temp
) < 0
4952 || input_stat
.st_dev
!= st_temp
.st_dev
4953 || input_stat
.st_ino
!= st_temp
.st_ino
)
4955 /* Just compare canonical pathnames. */
4956 char* input_realname
= lrealpath (input_filename
);
4957 char* temp_realname
= lrealpath (temp_filename
);
4958 bool files_differ
= strcmp (input_realname
, temp_realname
);
4959 free (input_realname
);
4960 free (temp_realname
);
4964 temp_filename
= save_string (temp_filename
,
4965 temp_filename_length
+ 1);
4966 obstack_grow (&obstack
, temp_filename
,
4967 temp_filename_length
);
4969 delete_this_arg
= 0;
4975 /* See if we already have an association of %g/%u/%U and
4977 for (t
= temp_names
; t
; t
= t
->next
)
4978 if (t
->length
== suffix_length
4979 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4980 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4983 /* Make a new association if needed. %u and %j
4985 if (t
== 0 || c
== 'u' || c
== 'j')
4989 t
= XNEW (struct temp_name
);
4990 t
->next
= temp_names
;
4993 t
->length
= suffix_length
;
4996 t
->suffix
= saved_suffix
;
4997 saved_suffix
= NULL
;
5000 t
->suffix
= save_string (suffix
, suffix_length
);
5001 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5002 temp_filename
= make_temp_file (t
->suffix
);
5003 temp_filename_length
= strlen (temp_filename
);
5004 t
->filename
= temp_filename
;
5005 t
->filename_length
= temp_filename_length
;
5009 free (saved_suffix
);
5011 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5012 delete_this_arg
= 1;
5020 for (i
= 0; (int) i
< n_infiles
; i
++)
5021 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
5022 if (infiles
[i
].incompiler
== input_file_compiler
)
5024 store_arg (infiles
[i
].name
, 0, 0);
5025 infiles
[i
].compiled
= true;
5030 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5037 struct spec_path_info info
;
5041 do_spec_1 ("-imultilib", 1, NULL
);
5042 /* Make this a separate argument. */
5043 do_spec_1 (" ", 0, NULL
);
5044 do_spec_1 (multilib_dir
, 1, NULL
);
5045 do_spec_1 (" ", 0, NULL
);
5048 if (gcc_exec_prefix
)
5050 do_spec_1 ("-iprefix", 1, NULL
);
5051 /* Make this a separate argument. */
5052 do_spec_1 (" ", 0, NULL
);
5053 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5054 do_spec_1 (" ", 0, NULL
);
5057 if (target_system_root_changed
||
5058 (target_system_root
&& target_sysroot_hdrs_suffix
))
5060 do_spec_1 ("-isysroot", 1, NULL
);
5061 /* Make this a separate argument. */
5062 do_spec_1 (" ", 0, NULL
);
5063 do_spec_1 (target_system_root
, 1, NULL
);
5064 if (target_sysroot_hdrs_suffix
)
5065 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5066 do_spec_1 (" ", 0, NULL
);
5069 info
.option
= "-isystem";
5070 info
.append
= "include";
5071 info
.append_len
= strlen (info
.append
);
5072 info
.omit_relative
= false;
5073 info
.separate_options
= true;
5075 for_each_path (&include_prefixes
, false, info
.append_len
,
5078 info
.append
= "include-fixed";
5079 if (*sysroot_hdrs_suffix_spec
)
5080 info
.append
= concat (info
.append
, dir_separator_str
,
5081 multilib_dir
, NULL
);
5082 info
.append_len
= strlen (info
.append
);
5083 for_each_path (&include_prefixes
, false, info
.append_len
,
5090 int max
= n_infiles
;
5091 max
+= lang_specific_extra_outfiles
;
5093 if (HAVE_GNU_LD
&& at_file_supplied
)
5095 /* We are going to expand `%o' to `@FILE', where FILE
5096 is a newly-created temporary filename. The filenames
5097 that would usually be expanded in place of %o will be
5098 written to the temporary file. */
5100 char *temp_file
= make_temp_file ("");
5103 int n_files
, j
, status
;
5106 at_argument
= concat ("@", temp_file
, NULL
);
5107 store_arg (at_argument
, 0, 0);
5109 /* Convert OUTFILES into a form suitable for writeargv. */
5111 /* Determine how many are non-NULL. */
5112 for (n_files
= 0, i
= 0; i
< max
; i
++)
5113 n_files
+= outfiles
[i
] != NULL
;
5115 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5117 /* Copy the strings over. */
5118 for (i
= 0, j
= 0; i
< max
; i
++)
5121 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5126 f
= fopen (temp_file
, "w");
5129 fatal ("could not open temporary response file %s",
5132 status
= writeargv (argv
, f
);
5135 fatal ("could not write to temporary response file %s",
5138 status
= fclose (f
);
5141 fatal ("could not close temporary response file %s",
5144 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5147 for (i
= 0; i
< max
; i
++)
5149 store_arg (outfiles
[i
], 0, 0);
5154 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5159 this_is_library_file
= 1;
5163 outfiles
[input_file_number
] = NULL
;
5167 this_is_output_file
= 1;
5172 int cur_index
= argbuf_index
;
5173 /* Handle the {...} following the %W. */
5175 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5176 p
= handle_braces (p
+ 1);
5180 /* If any args were output, mark the last one for deletion
5182 if (argbuf_index
!= cur_index
)
5183 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5187 /* %x{OPTION} records OPTION for %X to output. */
5193 /* Skip past the option value and make a copy. */
5195 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5198 string
= save_string (p1
+ 1, p
- p1
- 2);
5200 /* See if we already recorded this option. */
5201 for (i
= 0; i
< n_linker_options
; i
++)
5202 if (! strcmp (string
, linker_options
[i
]))
5208 /* This option is new; add it. */
5209 add_linker_option (string
, strlen (string
));
5213 /* Dump out the options accumulated previously using %x. */
5215 for (i
= 0; i
< n_linker_options
; i
++)
5217 do_spec_1 (linker_options
[i
], 1, NULL
);
5218 /* Make each accumulated option a separate argument. */
5219 do_spec_1 (" ", 0, NULL
);
5223 /* Dump out the options accumulated previously using -Wa,. */
5225 for (i
= 0; i
< n_assembler_options
; i
++)
5227 do_spec_1 (assembler_options
[i
], 1, NULL
);
5228 /* Make each accumulated option a separate argument. */
5229 do_spec_1 (" ", 0, NULL
);
5233 /* Dump out the options accumulated previously using -Wp,. */
5235 for (i
= 0; i
< n_preprocessor_options
; i
++)
5237 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5238 /* Make each accumulated option a separate argument. */
5239 do_spec_1 (" ", 0, NULL
);
5243 /* Here are digits and numbers that just process
5244 a certain constant string as a spec. */
5247 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5253 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5259 value
= do_spec_1 (asm_spec
, 0, NULL
);
5265 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5272 const char *const spec
5273 = (input_file_compiler
->cpp_spec
5274 ? input_file_compiler
->cpp_spec
5276 value
= do_spec_1 (spec
, 0, NULL
);
5283 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5289 value
= do_spec_1 (link_spec
, 0, NULL
);
5295 value
= do_spec_1 (lib_spec
, 0, NULL
);
5301 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5307 /* We assume there is a directory
5308 separator at the end of this string. */
5309 if (target_system_root
)
5311 obstack_grow (&obstack
, target_system_root
,
5312 strlen (target_system_root
));
5313 if (target_sysroot_suffix
)
5314 obstack_grow (&obstack
, target_sysroot_suffix
,
5315 strlen (target_sysroot_suffix
));
5320 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5325 /* Here we define characters other than letters and digits. */
5328 p
= handle_braces (p
);
5334 p
= handle_spec_function (p
);
5340 obstack_1grow (&obstack
, '%');
5347 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5349 suffix_subst
= save_string (p
- 1, len
+ 1);
5354 /* Henceforth ignore the option(s) matching the pattern
5359 int have_wildcard
= 0;
5362 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5365 if (p
[len
-1] == '*')
5368 for (i
= 0; i
< n_switches
; i
++)
5369 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5370 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5372 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5373 switches
[i
].validated
= 1;
5381 if (soft_matched_part
)
5383 do_spec_1 (soft_matched_part
, 1, NULL
);
5384 do_spec_1 (" ", 0, NULL
);
5387 /* Catch the case where a spec string contains something like
5388 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5389 hand side of the :. */
5390 error ("spec failure: '%%*' has not been initialized by pattern match");
5393 /* Process a string found as the value of a spec given by name.
5394 This feature allows individual machine descriptions
5395 to add and use their own specs.
5396 %[...] modifies -D options the way %P does;
5397 %(...) uses the spec unmodified. */
5399 error ("warning: use of obsolete %%[ operator in specs");
5402 const char *name
= p
;
5403 struct spec_list
*sl
;
5406 /* The string after the S/P is the name of a spec that is to be
5408 while (*p
&& *p
!= ')' && *p
!= ']')
5411 /* See if it's in the list. */
5412 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5413 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5415 name
= *(sl
->ptr_spec
);
5417 notice ("Processing spec %c%s%c, which is '%s'\n",
5418 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5427 value
= do_spec_1 (name
, 0, NULL
);
5433 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5435 const char *y
= name
;
5438 /* Copy all of NAME into BUF, but put __ after
5439 every -D and at the end of each arg. */
5442 if (! strncmp (y
, "-D", 2))
5453 && (*y
== ' ' || *y
== '\t' || *y
== '='
5454 || *y
== '}' || *y
== 0))
5467 value
= do_spec_1 (buf
, 0, NULL
);
5473 /* Discard the closing paren or bracket. */
5480 error ("spec failure: unrecognized spec option '%c'", c
);
5486 /* Backslash: treat next character as ordinary. */
5491 /* Ordinary character: put it into the current argument. */
5492 obstack_1grow (&obstack
, c
);
5496 /* End of string. If we are processing a spec function, we need to
5497 end any pending argument. */
5498 if (processing_spec_function
)
5504 /* Look up a spec function. */
5506 static const struct spec_function
*
5507 lookup_spec_function (const char *name
)
5509 const struct spec_function
*sf
;
5511 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5512 if (strcmp (sf
->name
, name
) == 0)
5518 /* Evaluate a spec function. */
5521 eval_spec_function (const char *func
, const char *args
)
5523 const struct spec_function
*sf
;
5524 const char *funcval
;
5526 /* Saved spec processing context. */
5527 int save_argbuf_index
;
5528 int save_argbuf_length
;
5529 const char **save_argbuf
;
5532 int save_delete_this_arg
;
5533 int save_this_is_output_file
;
5534 int save_this_is_library_file
;
5535 int save_input_from_pipe
;
5536 const char *save_suffix_subst
;
5539 sf
= lookup_spec_function (func
);
5541 fatal ("unknown spec function '%s'", func
);
5543 /* Push the spec processing context. */
5544 save_argbuf_index
= argbuf_index
;
5545 save_argbuf_length
= argbuf_length
;
5546 save_argbuf
= argbuf
;
5548 save_arg_going
= arg_going
;
5549 save_delete_this_arg
= delete_this_arg
;
5550 save_this_is_output_file
= this_is_output_file
;
5551 save_this_is_library_file
= this_is_library_file
;
5552 save_input_from_pipe
= input_from_pipe
;
5553 save_suffix_subst
= suffix_subst
;
5555 /* Create a new spec processing context, and build the function
5559 if (do_spec_2 (args
) < 0)
5560 fatal ("error in args to spec function '%s'", func
);
5562 /* argbuf_index is an index for the next argument to be inserted, and
5563 so contains the count of the args already inserted. */
5565 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5567 /* Pop the spec processing context. */
5568 argbuf_index
= save_argbuf_index
;
5569 argbuf_length
= save_argbuf_length
;
5571 argbuf
= save_argbuf
;
5573 arg_going
= save_arg_going
;
5574 delete_this_arg
= save_delete_this_arg
;
5575 this_is_output_file
= save_this_is_output_file
;
5576 this_is_library_file
= save_this_is_library_file
;
5577 input_from_pipe
= save_input_from_pipe
;
5578 suffix_subst
= save_suffix_subst
;
5583 /* Handle a spec function call of the form:
5587 ARGS is processed as a spec in a separate context and split into an
5588 argument vector in the normal fashion. The function returns a string
5589 containing a spec which we then process in the caller's context, or
5590 NULL if no processing is required. */
5593 handle_spec_function (const char *p
)
5596 const char *endp
, *funcval
;
5599 processing_spec_function
++;
5601 /* Get the function name. */
5602 for (endp
= p
; *endp
!= '\0'; endp
++)
5604 if (*endp
== '(') /* ) */
5606 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5607 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5608 fatal ("malformed spec function name");
5610 if (*endp
!= '(') /* ) */
5611 fatal ("no arguments for spec function");
5612 func
= save_string (p
, endp
- p
);
5615 /* Get the arguments. */
5616 for (count
= 0; *endp
!= '\0'; endp
++)
5625 else if (*endp
== '(') /* ) */
5630 fatal ("malformed spec function arguments");
5631 args
= save_string (p
, endp
- p
);
5634 /* p now points to just past the end of the spec function expression. */
5636 funcval
= eval_spec_function (func
, args
);
5637 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5643 processing_spec_function
--;
5648 /* Inline subroutine of handle_braces. Returns true if the current
5649 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5651 input_suffix_matches (const char *atom
, const char *end_atom
)
5653 return (input_suffix
5654 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5655 && input_suffix
[end_atom
- atom
] == '\0');
5658 /* Subroutine of handle_braces. Returns true if the current
5659 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5661 input_spec_matches (const char *atom
, const char *end_atom
)
5663 return (input_file_compiler
5664 && input_file_compiler
->suffix
5665 && input_file_compiler
->suffix
[0] != '\0'
5666 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5668 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5671 /* Subroutine of handle_braces. Returns true if a switch
5672 matching the atom bracketed by ATOM and END_ATOM appeared on the
5675 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5678 int len
= end_atom
- atom
;
5679 int plen
= starred
? len
: -1;
5681 for (i
= 0; i
< n_switches
; i
++)
5682 if (!strncmp (switches
[i
].part1
, atom
, len
)
5683 && (starred
|| switches
[i
].part1
[len
] == '\0')
5684 && check_live_switch (i
, plen
))
5690 /* Inline subroutine of handle_braces. Mark all of the switches which
5691 match ATOM (extends to END_ATOM; STARRED indicates whether there
5692 was a star after the atom) for later processing. */
5694 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5697 int len
= end_atom
- atom
;
5698 int plen
= starred
? len
: -1;
5700 for (i
= 0; i
< n_switches
; i
++)
5701 if (!strncmp (switches
[i
].part1
, atom
, len
)
5702 && (starred
|| switches
[i
].part1
[len
] == '\0')
5703 && check_live_switch (i
, plen
))
5704 switches
[i
].ordering
= 1;
5707 /* Inline subroutine of handle_braces. Process all the currently
5708 marked switches through give_switch, and clear the marks. */
5710 process_marked_switches (void)
5714 for (i
= 0; i
< n_switches
; i
++)
5715 if (switches
[i
].ordering
== 1)
5717 switches
[i
].ordering
= 0;
5722 /* Handle a %{ ... } construct. P points just inside the leading {.
5723 Returns a pointer one past the end of the brace block, or 0
5724 if we call do_spec_1 and that returns -1. */
5727 handle_braces (const char *p
)
5729 const char *atom
, *end_atom
;
5730 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5731 const char *orig
= p
;
5739 bool a_must_be_last
= false;
5740 bool ordered_set
= false;
5741 bool disjunct_set
= false;
5742 bool disj_matched
= false;
5743 bool disj_starred
= true;
5744 bool n_way_choice
= false;
5745 bool n_way_matched
= false;
5747 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5754 /* Scan one "atom" (S in the description above of %{}, possibly
5755 with '!', '.', '@', ',', or '*' modifiers). */
5757 a_is_suffix
= false;
5758 a_is_starred
= false;
5759 a_is_negated
= false;
5760 a_is_spectype
= false;
5764 p
++, a_is_negated
= true;
5768 p
++, a_is_suffix
= true;
5770 p
++, a_is_spectype
= true;
5773 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5774 || *p
== ',' || *p
== '.' || *p
== '@')
5779 p
++, a_is_starred
= 1;
5785 /* Substitute the switch(es) indicated by the current atom. */
5787 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5788 || a_is_spectype
|| atom
== end_atom
)
5791 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5794 process_marked_switches ();
5798 /* Substitute some text if the current atom appears as a switch
5800 disjunct_set
= true;
5804 if (atom
== end_atom
)
5806 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5807 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5811 /* An empty term may appear as the last choice of an
5812 N-way choice set; it means "otherwise". */
5813 a_must_be_last
= true;
5814 disj_matched
= !n_way_matched
;
5815 disj_starred
= false;
5819 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5823 disj_starred
= false;
5825 /* Don't bother testing this atom if we already have a
5827 if (!disj_matched
&& !n_way_matched
)
5830 a_matched
= input_suffix_matches (atom
, end_atom
);
5831 else if (a_is_spectype
)
5832 a_matched
= input_spec_matches (atom
, end_atom
);
5834 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5836 if (a_matched
!= a_is_negated
)
5838 disj_matched
= true;
5840 d_end_atom
= end_atom
;
5847 /* Found the body, that is, the text to substitute if the
5848 current disjunction matches. */
5849 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5850 disj_matched
&& !n_way_matched
);
5854 /* If we have an N-way choice, reset state for the next
5858 n_way_choice
= true;
5859 n_way_matched
|= disj_matched
;
5860 disj_matched
= false;
5861 disj_starred
= true;
5862 d_atom
= d_end_atom
= NULL
;
5871 while (*p
++ != '}');
5876 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5881 /* Subroutine of handle_braces. Scan and process a brace substitution body
5882 (X in the description of %{} syntax). P points one past the colon;
5883 ATOM and END_ATOM bracket the first atom which was found to be true
5884 (present) in the current disjunction; STARRED indicates whether all
5885 the atoms in the current disjunction were starred (for syntax validation);
5886 MATCHED indicates whether the disjunction matched or not, and therefore
5887 whether or not the body is to be processed through do_spec_1 or just
5888 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5892 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5893 int starred
, int matched
)
5895 const char *body
, *end_body
;
5896 unsigned int nesting_level
;
5897 bool have_subst
= false;
5899 /* Locate the closing } or ;, honoring nested braces.
5900 Trim trailing whitespace. */
5909 if (!--nesting_level
)
5912 else if (*p
== ';' && nesting_level
== 1)
5914 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5916 else if (*p
== '\0')
5922 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5925 if (have_subst
&& !starred
)
5930 /* Copy the substitution body to permanent storage and execute it.
5931 If have_subst is false, this is a simple matter of running the
5932 body through do_spec_1... */
5933 char *string
= save_string (body
, end_body
- body
);
5936 if (do_spec_1 (string
, 0, NULL
) < 0)
5941 /* ... but if have_subst is true, we have to process the
5942 body once for each matching switch, with %* set to the
5943 variant part of the switch. */
5944 unsigned int hard_match_len
= end_atom
- atom
;
5947 for (i
= 0; i
< n_switches
; i
++)
5948 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5949 && check_live_switch (i
, hard_match_len
))
5951 if (do_spec_1 (string
, 0,
5952 &switches
[i
].part1
[hard_match_len
]) < 0)
5954 /* Pass any arguments this switch has. */
5956 suffix_subst
= NULL
;
5964 fatal ("braced spec body '%s' is invalid", body
);
5967 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5968 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5969 spec, or -1 if either exact match or %* is used.
5971 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5972 whose value does not begin with "no-" is obsoleted by the same value
5973 with the "no-", similarly for a switch with the "no-" prefix. */
5976 check_live_switch (int switchnum
, int prefix_length
)
5978 const char *name
= switches
[switchnum
].part1
;
5981 /* In the common case of {<at-most-one-letter>*}, a negating
5982 switch would always match, so ignore that case. We will just
5983 send the conflicting switches to the compiler phase. */
5984 if (prefix_length
>= 0 && prefix_length
<= 1)
5987 /* If we already processed this switch and determined if it was
5988 live or not, return our past determination. */
5989 if (switches
[switchnum
].live_cond
!= 0)
5990 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5991 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0);
5993 /* Now search for duplicate in a manner that depends on the name. */
5997 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5998 if (switches
[i
].part1
[0] == 'O')
6000 switches
[switchnum
].validated
= 1;
6001 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6006 case 'W': case 'f': case 'm':
6007 if (! strncmp (name
+ 1, "no-", 3))
6009 /* We have Xno-YYY, search for XYYY. */
6010 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6011 if (switches
[i
].part1
[0] == name
[0]
6012 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6014 switches
[switchnum
].validated
= 1;
6015 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6021 /* We have XYYY, search for Xno-YYY. */
6022 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6023 if (switches
[i
].part1
[0] == name
[0]
6024 && switches
[i
].part1
[1] == 'n'
6025 && switches
[i
].part1
[2] == 'o'
6026 && switches
[i
].part1
[3] == '-'
6027 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6029 switches
[switchnum
].validated
= 1;
6030 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6037 /* Otherwise the switch is live. */
6038 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6042 /* Pass a switch to the current accumulating command
6043 in the same form that we received it.
6044 SWITCHNUM identifies the switch; it is an index into
6045 the vector of switches gcc received, which is `switches'.
6046 This cannot fail since it never finishes a command line.
6048 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6051 give_switch (int switchnum
, int omit_first_word
)
6053 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6056 if (!omit_first_word
)
6058 do_spec_1 ("-", 0, NULL
);
6059 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6062 if (switches
[switchnum
].args
!= 0)
6065 for (p
= switches
[switchnum
].args
; *p
; p
++)
6067 const char *arg
= *p
;
6069 do_spec_1 (" ", 0, NULL
);
6072 unsigned length
= strlen (arg
);
6075 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6076 if (arg
[length
] == '.')
6078 (CONST_CAST(char *, arg
))[length
] = 0;
6082 do_spec_1 (arg
, 1, NULL
);
6084 (CONST_CAST(char *, arg
))[length
] = '.';
6085 do_spec_1 (suffix_subst
, 1, NULL
);
6088 do_spec_1 (arg
, 1, NULL
);
6092 do_spec_1 (" ", 0, NULL
);
6093 switches
[switchnum
].validated
= 1;
6096 /* Search for a file named NAME trying various prefixes including the
6097 user's -B prefix and some standard ones.
6098 Return the absolute file name found. If nothing is found, return NAME. */
6101 find_file (const char *name
)
6103 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6104 return newname
? newname
: name
;
6107 /* Determine whether a directory exists. If LINKER, return 0 for
6108 certain fixed names not needed by the linker. */
6111 is_directory (const char *path1
, bool linker
)
6118 /* Ensure the string ends with "/.". The resulting path will be a
6119 directory even if the given path is a symbolic link. */
6120 len1
= strlen (path1
);
6121 path
= (char *) alloca (3 + len1
);
6122 memcpy (path
, path1
, len1
);
6124 if (!IS_DIR_SEPARATOR (cp
[-1]))
6125 *cp
++ = DIR_SEPARATOR
;
6129 /* Exclude directories that the linker is known to search. */
6131 && IS_DIR_SEPARATOR (path
[0])
6133 && strncmp (path
+ 1, "lib", 3) == 0)
6135 && strncmp (path
+ 1, "usr", 3) == 0
6136 && IS_DIR_SEPARATOR (path
[4])
6137 && strncmp (path
+ 5, "lib", 3) == 0)))
6140 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6143 /* Set up the various global variables to indicate that we're processing
6144 the input file named FILENAME. */
6147 set_input (const char *filename
)
6151 input_filename
= filename
;
6152 input_filename_length
= strlen (input_filename
);
6154 input_basename
= input_filename
;
6155 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6156 /* Skip drive name so 'x:foo' is handled properly. */
6157 if (input_basename
[1] == ':')
6158 input_basename
+= 2;
6160 for (p
= input_basename
; *p
; p
++)
6161 if (IS_DIR_SEPARATOR (*p
))
6162 input_basename
= p
+ 1;
6164 /* Find a suffix starting with the last period,
6165 and set basename_length to exclude that suffix. */
6166 basename_length
= strlen (input_basename
);
6167 suffixed_basename_length
= basename_length
;
6168 p
= input_basename
+ basename_length
;
6169 while (p
!= input_basename
&& *p
!= '.')
6171 if (*p
== '.' && p
!= input_basename
)
6173 basename_length
= p
- input_basename
;
6174 input_suffix
= p
+ 1;
6179 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6180 we will need to do a stat on the input_filename. The
6181 INPUT_STAT_SET signals that the stat is needed. */
6185 /* On fatal signals, delete all the temporary files. */
6188 fatal_error (int signum
)
6190 signal (signum
, SIG_DFL
);
6191 delete_failure_queue ();
6192 delete_temp_files ();
6193 /* Get the same signal again, this time not handled,
6194 so its normal effect occurs. */
6195 kill (getpid (), signum
);
6198 extern int main (int, char **);
6201 main (int argc
, char **argv
)
6205 int linker_was_run
= 0;
6206 int lang_n_infiles
= 0;
6207 int num_linker_inputs
= 0;
6208 char *explicit_link_files
;
6211 struct user_specs
*uptr
;
6212 char **old_argv
= argv
;
6214 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6215 on ?: in file-scope variable initializations. */
6216 asm_debug
= ASM_DEBUG_SPEC
;
6218 p
= argv
[0] + strlen (argv
[0]);
6219 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6223 xmalloc_set_program_name (programname
);
6225 expandargv (&argc
, &argv
);
6227 /* Determine if any expansions were made. */
6228 if (argv
!= old_argv
)
6229 at_file_supplied
= true;
6231 prune_options (&argc
, &argv
);
6233 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6234 /* Perform host dependent initialization when needed. */
6235 GCC_DRIVER_HOST_INITIALIZATION
;
6238 /* Unlock the stdio streams. */
6239 unlock_std_streams ();
6241 gcc_init_libintl ();
6243 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6244 signal (SIGINT
, fatal_error
);
6246 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6247 signal (SIGHUP
, fatal_error
);
6249 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6250 signal (SIGTERM
, fatal_error
);
6252 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6253 signal (SIGPIPE
, fatal_error
);
6256 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6257 receive the signal. A different setting is inheritable */
6258 signal (SIGCHLD
, SIG_DFL
);
6261 /* Allocate the argument vector. */
6264 obstack_init (&obstack
);
6266 /* Build multilib_select, et. al from the separate lines that make up each
6267 multilib selection. */
6269 const char *const *q
= multilib_raw
;
6272 obstack_init (&multilib_obstack
);
6273 while ((p
= *q
++) != (char *) 0)
6274 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6276 obstack_1grow (&multilib_obstack
, 0);
6277 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6279 q
= multilib_matches_raw
;
6280 while ((p
= *q
++) != (char *) 0)
6281 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6283 obstack_1grow (&multilib_obstack
, 0);
6284 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6286 q
= multilib_exclusions_raw
;
6287 while ((p
= *q
++) != (char *) 0)
6288 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6290 obstack_1grow (&multilib_obstack
, 0);
6291 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6294 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6297 obstack_1grow (&multilib_obstack
, ' ');
6298 obstack_grow (&multilib_obstack
,
6299 multilib_defaults_raw
[i
],
6300 strlen (multilib_defaults_raw
[i
]));
6304 obstack_1grow (&multilib_obstack
, 0);
6305 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6308 /* Set up to remember the pathname of gcc and any options
6309 needed for collect. We use argv[0] instead of programname because
6310 we need the complete pathname. */
6311 obstack_init (&collect_obstack
);
6312 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6313 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6314 xputenv (XOBFINISH (&collect_obstack
, char *));
6316 #ifdef INIT_ENVIRONMENT
6317 /* Set up any other necessary machine specific environment variables. */
6318 xputenv (INIT_ENVIRONMENT
);
6321 /* Make a table of what switches there are (switches, n_switches).
6322 Make a table of specified input files (infiles, n_infiles).
6323 Decode switches that are handled locally. */
6325 process_command (argc
, (const char **) argv
);
6327 /* Initialize the vector of specs to just the default.
6328 This means one element containing 0s, as a terminator. */
6330 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6331 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6332 n_compilers
= n_default_compilers
;
6334 /* Read specs from a file if there is one. */
6336 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6337 spec_version
, dir_separator_str
, NULL
);
6338 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6340 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6341 /* Read the specs file unless it is a default one. */
6342 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6343 read_specs (specs_file
, TRUE
);
6347 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6348 for any override of as, ld and libraries. */
6349 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6350 + strlen (just_machine_suffix
) + sizeof ("specs"));
6352 strcpy (specs_file
, standard_exec_prefix
);
6353 strcat (specs_file
, just_machine_suffix
);
6354 strcat (specs_file
, "specs");
6355 if (access (specs_file
, R_OK
) == 0)
6356 read_specs (specs_file
, TRUE
);
6358 /* Process any configure-time defaults specified for the command line
6359 options, via OPTION_DEFAULT_SPECS. */
6360 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6361 do_option_spec (option_default_specs
[i
].name
,
6362 option_default_specs
[i
].spec
);
6364 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6365 of the command line. */
6367 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6368 do_self_spec (driver_self_specs
[i
]);
6370 /* If not cross-compiling, look for executables in the standard
6372 if (*cross_compile
== '0')
6374 if (*md_exec_prefix
)
6376 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6377 PREFIX_PRIORITY_LAST
, 0, 0);
6381 /* Process sysroot_suffix_spec. */
6382 if (*sysroot_suffix_spec
!= 0
6383 && do_spec_2 (sysroot_suffix_spec
) == 0)
6385 if (argbuf_index
> 1)
6386 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6387 else if (argbuf_index
== 1)
6388 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6391 #ifdef HAVE_LD_SYSROOT
6392 /* Pass the --sysroot option to the linker, if it supports that. If
6393 there is a sysroot_suffix_spec, it has already been processed by
6394 this point, so target_system_root really is the system root we
6396 if (target_system_root
)
6398 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6399 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6400 set_spec ("link", XOBFINISH (&obstack
, const char *));
6404 /* Process sysroot_hdrs_suffix_spec. */
6405 if (*sysroot_hdrs_suffix_spec
!= 0
6406 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6408 if (argbuf_index
> 1)
6409 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6410 else if (argbuf_index
== 1)
6411 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6414 /* Look for startfiles in the standard places. */
6415 if (*startfile_prefix_spec
!= 0
6416 && do_spec_2 (startfile_prefix_spec
) == 0
6417 && do_spec_1 (" ", 0, NULL
) == 0)
6420 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6421 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6422 PREFIX_PRIORITY_LAST
, 0, 1);
6424 /* We should eventually get rid of all these and stick to
6425 startfile_prefix_spec exclusively. */
6426 else if (*cross_compile
== '0' || target_system_root
)
6428 if (*md_startfile_prefix
)
6429 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6430 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6432 if (*md_startfile_prefix_1
)
6433 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6434 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6436 /* If standard_startfile_prefix is relative, base it on
6437 standard_exec_prefix. This lets us move the installed tree
6438 as a unit. If GCC_EXEC_PREFIX is defined, base
6439 standard_startfile_prefix on that as well.
6441 If the prefix is relative, only search it for native compilers;
6442 otherwise we will search a directory containing host libraries. */
6443 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6444 add_sysrooted_prefix (&startfile_prefixes
,
6445 standard_startfile_prefix
, "BINUTILS",
6446 PREFIX_PRIORITY_LAST
, 0, 1);
6447 else if (*cross_compile
== '0')
6449 add_prefix (&startfile_prefixes
,
6450 concat (gcc_exec_prefix
6451 ? gcc_exec_prefix
: standard_exec_prefix
,
6453 standard_startfile_prefix
, NULL
),
6454 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6457 /* Sysrooted prefixes are relocated because target_system_root is
6458 also relocated by gcc_exec_prefix. */
6459 if (*standard_startfile_prefix_1
)
6460 add_sysrooted_prefix (&startfile_prefixes
,
6461 standard_startfile_prefix_1
, "BINUTILS",
6462 PREFIX_PRIORITY_LAST
, 0, 1);
6463 if (*standard_startfile_prefix_2
)
6464 add_sysrooted_prefix (&startfile_prefixes
,
6465 standard_startfile_prefix_2
, "BINUTILS",
6466 PREFIX_PRIORITY_LAST
, 0, 1);
6469 /* Process any user specified specs in the order given on the command
6471 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6473 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6475 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6478 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6479 if (gcc_exec_prefix
)
6480 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6481 spec_version
, dir_separator_str
, NULL
);
6483 /* Now we have the specs.
6484 Set the `valid' bits for switches that match anything in any spec. */
6486 validate_all_switches ();
6488 /* Now that we have the switches and the specs, set
6489 the subdirectory based on the options. */
6490 set_multilib_dir ();
6492 /* Warn about any switches that no pass was interested in. */
6494 for (i
= 0; (int) i
< n_switches
; i
++)
6495 if (! switches
[i
].validated
)
6496 error ("unrecognized option '-%s'", switches
[i
].part1
);
6498 /* Obey some of the options. */
6500 if (print_search_dirs
)
6502 printf (_("install: %s%s\n"),
6503 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6504 gcc_exec_prefix
? "" : machine_suffix
);
6505 printf (_("programs: %s\n"),
6506 build_search_list (&exec_prefixes
, "", false, false));
6507 printf (_("libraries: %s\n"),
6508 build_search_list (&startfile_prefixes
, "", false, true));
6512 if (print_file_name
)
6514 printf ("%s\n", find_file (print_file_name
));
6518 if (print_prog_name
)
6520 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6521 printf ("%s\n", (newname
? newname
: print_prog_name
));
6525 if (print_multi_lib
)
6527 print_multilib_info ();
6531 if (print_multi_directory
)
6533 if (multilib_dir
== NULL
)
6536 printf ("%s\n", multilib_dir
);
6542 if (target_system_root
)
6544 if (target_sysroot_suffix
)
6545 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6547 printf ("%s\n", target_system_root
);
6552 if (print_multi_os_directory
)
6554 if (multilib_os_dir
== NULL
)
6557 printf ("%s\n", multilib_os_dir
);
6561 if (print_sysroot_headers_suffix
)
6563 if (*sysroot_hdrs_suffix_spec
)
6565 printf("%s\n", (target_sysroot_hdrs_suffix
6566 ? target_sysroot_hdrs_suffix
6571 /* The error status indicates that only one set of fixed
6572 headers should be built. */
6573 fatal ("not configured with sysroot headers suffix");
6576 if (print_help_list
)
6582 printf (_("\nFor bug reporting instructions, please see:\n"));
6583 printf ("%s.\n", bug_report_url
);
6588 /* We do not exit here. Instead we have created a fake input file
6589 called 'help-dummy' which needs to be compiled, and we pass this
6590 on the various sub-processes, along with the --help switch. */
6598 notice ("Target: %s\n", spec_machine
);
6599 notice ("Configured with: %s\n", configuration_arguments
);
6601 #ifdef THREAD_MODEL_SPEC
6602 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6603 but there's no point in doing all this processing just to get
6604 thread_model back. */
6605 obstack_init (&obstack
);
6606 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6607 obstack_1grow (&obstack
, '\0');
6608 thrmod
= XOBFINISH (&obstack
, const char *);
6610 thrmod
= thread_model
;
6613 notice ("Thread model: %s\n", thrmod
);
6615 /* compiler_version is truncated at the first space when initialized
6616 from version string, so truncate version_string at the first space
6617 before comparing. */
6618 for (n
= 0; version_string
[n
]; n
++)
6619 if (version_string
[n
] == ' ')
6622 if (! strncmp (version_string
, compiler_version
, n
)
6623 && compiler_version
[n
] == 0)
6624 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
6626 notice ("gcc driver version %s %sexecuting gcc version %s\n",
6627 version_string
, pkgversion_string
, compiler_version
);
6633 if (n_infiles
== added_libraries
)
6634 fatal ("no input files");
6636 /* Make a place to record the compiler output file names
6637 that correspond to the input files. */
6640 i
+= lang_specific_extra_outfiles
;
6641 outfiles
= XCNEWVEC (const char *, i
);
6643 /* Record which files were specified explicitly as link input. */
6645 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6648 combine_inputs
= true;
6650 combine_inputs
= false;
6652 for (i
= 0; (int) i
< n_infiles
; i
++)
6654 const char *name
= infiles
[i
].name
;
6655 struct compiler
*compiler
= lookup_compiler (name
,
6657 infiles
[i
].language
);
6659 if (compiler
&& !(compiler
->combinable
))
6660 combine_inputs
= false;
6662 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6663 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6664 infiles
[i
].incompiler
= compiler
;
6668 input_file_compiler
= compiler
;
6669 infiles
[i
].incompiler
= compiler
;
6673 /* Since there is no compiler for this input file, assume it is a
6675 explicit_link_files
[i
] = 1;
6676 infiles
[i
].incompiler
= NULL
;
6678 infiles
[i
].compiled
= false;
6679 infiles
[i
].preprocessed
= false;
6682 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6683 fatal ("cannot specify -o with -c or -S with multiple files");
6685 if (combine_flag
&& save_temps_flag
)
6687 bool save_combine_inputs
= combine_inputs
;
6688 /* Must do a separate pre-processing pass for C & Objective-C files, to
6689 obtain individual .i files. */
6691 combine_inputs
= false;
6692 for (i
= 0; (int) i
< n_infiles
; i
++)
6694 int this_file_error
= 0;
6696 input_file_number
= i
;
6697 set_input (infiles
[i
].name
);
6698 if (infiles
[i
].incompiler
6699 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6700 input_file_compiler
= infiles
[i
].incompiler
;
6704 if (input_file_compiler
)
6706 if (input_file_compiler
->spec
[0] == '#')
6708 error ("%s: %s compiler not installed on this system",
6709 input_filename
, &input_file_compiler
->spec
[1]);
6710 this_file_error
= 1;
6714 value
= do_spec (input_file_compiler
->spec
);
6715 infiles
[i
].preprocessed
= true;
6716 if (!have_o_argbuf_index
)
6717 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6718 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6719 infiles
[i
].incompiler
6720 = lookup_compiler (infiles
[i
].name
,
6721 strlen (infiles
[i
].name
),
6722 infiles
[i
].language
);
6725 this_file_error
= 1;
6729 if (this_file_error
)
6731 delete_failure_queue ();
6735 clear_failure_queue ();
6737 combine_inputs
= save_combine_inputs
;
6740 for (i
= 0; (int) i
< n_infiles
; i
++)
6742 int this_file_error
= 0;
6744 /* Tell do_spec what to substitute for %i. */
6746 input_file_number
= i
;
6747 set_input (infiles
[i
].name
);
6749 if (infiles
[i
].compiled
)
6752 /* Use the same thing in %o, unless cp->spec says otherwise. */
6754 outfiles
[i
] = input_filename
;
6756 /* Figure out which compiler from the file's suffix. */
6758 if (! combine_inputs
)
6760 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6761 infiles
[i
].language
);
6763 input_file_compiler
= infiles
[i
].incompiler
;
6765 if (input_file_compiler
)
6767 /* Ok, we found an applicable compiler. Run its spec. */
6769 if (input_file_compiler
->spec
[0] == '#')
6771 error ("%s: %s compiler not installed on this system",
6772 input_filename
, &input_file_compiler
->spec
[1]);
6773 this_file_error
= 1;
6777 value
= do_spec (input_file_compiler
->spec
);
6778 infiles
[i
].compiled
= true;
6780 this_file_error
= 1;
6784 /* If this file's name does not contain a recognized suffix,
6785 record it as explicit linker input. */
6788 explicit_link_files
[i
] = 1;
6790 /* Clear the delete-on-failure queue, deleting the files in it
6791 if this compilation failed. */
6793 if (this_file_error
)
6795 delete_failure_queue ();
6798 /* If this compilation succeeded, don't delete those files later. */
6799 clear_failure_queue ();
6802 /* Reset the input file name to the first compile/object file name, for use
6803 with %b in LINK_SPEC. We use the first input file that we can find
6804 a compiler to compile it instead of using infiles.language since for
6805 languages other than C we use aliases that we then lookup later. */
6810 for (i
= 0; i
< n_infiles
; i
++)
6811 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6813 set_input (infiles
[i
].name
);
6818 if (error_count
== 0)
6820 /* Make sure INPUT_FILE_NUMBER points to first available open
6822 input_file_number
= n_infiles
;
6823 if (lang_specific_pre_link ())
6827 /* Determine if there are any linker input files. */
6828 num_linker_inputs
= 0;
6829 for (i
= 0; (int) i
< n_infiles
; i
++)
6830 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6831 num_linker_inputs
++;
6833 /* Run ld to link all the compiler output files. */
6835 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
6837 int tmp
= execution_count
;
6839 /* We'll use ld if we can't find collect2. */
6840 if (! strcmp (linker_name_spec
, "collect2"))
6842 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6844 linker_name_spec
= "ld";
6846 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6848 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6849 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6851 if (print_subprocess_help
== 1)
6853 printf (_("\nLinker options\n==============\n\n"));
6854 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6855 " to the linker.\n\n"));
6858 value
= do_spec (link_command_spec
);
6861 linker_was_run
= (tmp
!= execution_count
);
6864 /* If options said don't run linker,
6865 complain about input files to be given to the linker. */
6867 if (! linker_was_run
&& error_count
== 0)
6868 for (i
= 0; (int) i
< n_infiles
; i
++)
6869 if (explicit_link_files
[i
]
6870 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6871 error ("%s: linker input file unused because linking not done",
6874 /* Delete some or all of the temporary files we made. */
6877 delete_failure_queue ();
6878 delete_temp_files ();
6880 if (print_help_list
)
6882 printf (("\nFor bug reporting instructions, please see:\n"));
6883 printf ("%s\n", bug_report_url
);
6886 return (signal_count
!= 0 ? 2
6887 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6891 /* Find the proper compilation spec for the file name NAME,
6892 whose length is LENGTH. LANGUAGE is the specified language,
6893 or 0 if this file is to be passed to the linker. */
6895 static struct compiler
*
6896 lookup_compiler (const char *name
, size_t length
, const char *language
)
6898 struct compiler
*cp
;
6900 /* If this was specified by the user to be a linker input, indicate that. */
6901 if (language
!= 0 && language
[0] == '*')
6904 /* Otherwise, look for the language, if one is spec'd. */
6907 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6908 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6911 error ("language %s not recognized", language
);
6915 /* Look for a suffix. */
6916 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6918 if (/* The suffix `-' matches only the file name `-'. */
6919 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6920 || (strlen (cp
->suffix
) < length
6921 /* See if the suffix matches the end of NAME. */
6922 && !strcmp (cp
->suffix
,
6923 name
+ length
- strlen (cp
->suffix
))
6928 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6929 /* Look again, but case-insensitively this time. */
6931 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6933 if (/* The suffix `-' matches only the file name `-'. */
6934 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6935 || (strlen (cp
->suffix
) < length
6936 /* See if the suffix matches the end of NAME. */
6937 && ((!strcmp (cp
->suffix
,
6938 name
+ length
- strlen (cp
->suffix
))
6939 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6940 && !strcasecmp (cp
->suffix
,
6941 name
+ length
- strlen (cp
->suffix
)))
6947 if (cp
>= compilers
)
6949 if (cp
->spec
[0] != '@')
6950 /* A non-alias entry: return it. */
6953 /* An alias entry maps a suffix to a language.
6954 Search for the language; pass 0 for NAME and LENGTH
6955 to avoid infinite recursion if language not found. */
6956 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6962 save_string (const char *s
, int len
)
6964 char *result
= XNEWVEC (char, len
+ 1);
6966 memcpy (result
, s
, len
);
6972 pfatal_with_name (const char *name
)
6974 perror_with_name (name
);
6975 delete_temp_files ();
6980 perror_with_name (const char *name
)
6982 error ("%s: %s", name
, xstrerror (errno
));
6985 /* Output an error message and exit. */
6988 fancy_abort (const char *file
, int line
, const char *func
)
6990 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6993 /* Output an error message and exit. */
6996 fatal_ice (const char *cmsgid
, ...)
7000 va_start (ap
, cmsgid
);
7002 fprintf (stderr
, "%s: ", programname
);
7003 vfprintf (stderr
, _(cmsgid
), ap
);
7005 fprintf (stderr
, "\n");
7006 delete_temp_files ();
7007 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7011 fatal (const char *cmsgid
, ...)
7015 va_start (ap
, cmsgid
);
7017 fprintf (stderr
, "%s: ", programname
);
7018 vfprintf (stderr
, _(cmsgid
), ap
);
7020 fprintf (stderr
, "\n");
7021 delete_temp_files ();
7025 /* The argument is actually c-format, not gcc-internal-format,
7026 but because functions with identical names are used through
7027 the rest of the compiler with gcc-internal-format, we just
7028 need to hope all users of these functions use the common
7029 subset between c-format and gcc-internal-format. */
7032 error (const char *gmsgid
, ...)
7036 va_start (ap
, gmsgid
);
7037 fprintf (stderr
, "%s: ", programname
);
7038 vfprintf (stderr
, _(gmsgid
), ap
);
7041 fprintf (stderr
, "\n");
7045 notice (const char *cmsgid
, ...)
7049 va_start (ap
, cmsgid
);
7050 vfprintf (stderr
, _(cmsgid
), ap
);
7055 validate_switches_from_spec (const char *spec
)
7057 const char *p
= spec
;
7060 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7061 /* We have a switch spec. */
7062 p
= validate_switches (p
+ 1);
7066 validate_all_switches (void)
7068 struct compiler
*comp
;
7069 struct spec_list
*spec
;
7071 for (comp
= compilers
; comp
->spec
; comp
++)
7072 validate_switches_from_spec (comp
->spec
);
7074 /* Look through the linked list of specs read from the specs file. */
7075 for (spec
= specs
; spec
; spec
= spec
->next
)
7076 validate_switches_from_spec (*spec
->ptr_spec
);
7078 validate_switches_from_spec (link_command_spec
);
7081 /* Look at the switch-name that comes after START
7082 and mark as valid all supplied switches that match it. */
7085 validate_switches (const char *start
)
7087 const char *p
= start
;
7091 bool suffix
= false;
7092 bool starred
= false;
7094 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7103 if (*p
== '.' || *p
== ',')
7107 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7108 || *p
== ',' || *p
== '.' || *p
== '@')
7113 starred
= true, p
++;
7119 /* Mark all matching switches as valid. */
7120 for (i
= 0; i
< n_switches
; i
++)
7121 if (!strncmp (switches
[i
].part1
, atom
, len
)
7122 && (starred
|| switches
[i
].part1
[len
] == 0))
7123 switches
[i
].validated
= 1;
7127 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7130 if (*p
&& p
[-1] == ':')
7132 while (*p
&& *p
!= ';' && *p
!= '}')
7137 if (*p
== '{' || *p
== '<')
7138 p
= validate_switches (p
+1);
7139 else if (p
[0] == 'W' && p
[1] == '{')
7140 p
= validate_switches (p
+2);
7147 if (*p
&& p
[-1] == ';')
7161 static struct mdswitchstr
*mdswitches
;
7162 static int n_mdswitches
;
7164 /* Check whether a particular argument was used. The first time we
7165 canonicalize the switches to keep only the ones we care about. */
7168 used_arg (const char *p
, int len
)
7173 const char *replace
;
7178 static struct mswitchstr
*mswitches
;
7179 static int n_mswitches
;
7184 struct mswitchstr
*matches
;
7188 /* Break multilib_matches into the component strings of string
7189 and replacement string. */
7190 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7195 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7197 q
= multilib_matches
;
7206 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7210 matches
[i
].len
= q
- matches
[i
].str
;
7212 matches
[i
].replace
= ++q
;
7213 while (*q
!= ';' && *q
!= '\0')
7216 goto invalid_matches
;
7219 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7225 /* Now build a list of the replacement string for switches that we care
7226 about. Make sure we allocate at least one entry. This prevents
7227 xmalloc from calling fatal, and prevents us from re-executing this
7230 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7231 for (i
= 0; i
< n_switches
; i
++)
7232 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7234 int xlen
= strlen (switches
[i
].part1
);
7235 for (j
= 0; j
< cnt
; j
++)
7236 if (xlen
== matches
[j
].len
7237 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7239 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7240 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7241 mswitches
[n_mswitches
].replace
= (char *) 0;
7242 mswitches
[n_mswitches
].rep_len
= 0;
7248 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7249 on the command line nor any options mutually incompatible with
7251 for (i
= 0; i
< n_mdswitches
; i
++)
7255 for (q
= multilib_options
; *q
!= '\0'; q
++)
7261 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7262 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7264 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7271 if (*q
!= ' ' && *q
!= '\0')
7273 while (*r
!= ' ' && *r
!= '\0')
7276 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7279 if (used_arg (r
, q
- r
))
7284 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7285 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7286 mswitches
[n_mswitches
].replace
= (char *) 0;
7287 mswitches
[n_mswitches
].rep_len
= 0;
7300 for (i
= 0; i
< n_mswitches
; i
++)
7301 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7308 default_arg (const char *p
, int len
)
7312 for (i
= 0; i
< n_mdswitches
; i
++)
7313 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7319 /* Work out the subdirectory to use based on the options. The format of
7320 multilib_select is a list of elements. Each element is a subdirectory
7321 name followed by a list of options followed by a semicolon. The format
7322 of multilib_exclusions is the same, but without the preceding
7323 directory. First gcc will check the exclusions, if none of the options
7324 beginning with an exclamation point are present, and all of the other
7325 options are present, then we will ignore this completely. Passing
7326 that, gcc will consider each multilib_select in turn using the same
7327 rules for matching the options. If a match is found, that subdirectory
7331 set_multilib_dir (void)
7334 unsigned int this_path_len
;
7335 const char *this_path
, *this_arg
;
7336 const char *start
, *end
;
7338 int ok
, ndfltok
, first
;
7341 start
= multilib_defaults
;
7342 while (*start
== ' ' || *start
== '\t')
7344 while (*start
!= '\0')
7347 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7349 while (*start
== ' ' || *start
== '\t')
7357 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7358 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7360 while (*start
== ' ' || *start
== '\t')
7366 for (end
= start
+ 1;
7367 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7370 obstack_grow (&multilib_obstack
, start
, end
- start
);
7371 obstack_1grow (&multilib_obstack
, 0);
7372 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7373 mdswitches
[i
++].len
= end
- start
;
7380 p
= multilib_exclusions
;
7383 /* Ignore newlines. */
7390 /* Check the arguments. */
7397 fatal ("multilib exclusions '%s' is invalid",
7398 multilib_exclusions
);
7408 while (*p
!= ' ' && *p
!= ';')
7411 goto invalid_exclusions
;
7415 if (*this_arg
!= '!')
7423 ok
= used_arg (this_arg
, p
- this_arg
);
7438 p
= multilib_select
;
7441 /* Ignore newlines. */
7448 /* Get the initial path. */
7455 fatal ("multilib select '%s' is invalid",
7460 this_path_len
= p
- this_path
;
7462 /* Check the arguments. */
7469 goto invalid_select
;
7478 while (*p
!= ' ' && *p
!= ';')
7481 goto invalid_select
;
7485 if (*this_arg
!= '!')
7493 /* If this is a default argument, we can just ignore it.
7494 This is true even if this_arg begins with '!'. Beginning
7495 with '!' does not mean that this argument is necessarily
7496 inappropriate for this library: it merely means that
7497 there is a more specific library which uses this
7498 argument. If this argument is a default, we need not
7499 consider that more specific library. */
7500 ok
= used_arg (this_arg
, p
- this_arg
);
7507 if (default_arg (this_arg
, p
- this_arg
))
7516 if (this_path_len
!= 1
7517 || this_path
[0] != '.')
7519 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7522 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7523 new_multilib_dir
[this_path_len
] = '\0';
7524 q
= strchr (new_multilib_dir
, ':');
7527 multilib_dir
= new_multilib_dir
;
7534 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7536 while (q
< end
&& *q
!= ':')
7540 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7541 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7542 new_multilib_os_dir
[end
- q
- 1] = '\0';
7543 multilib_os_dir
= new_multilib_os_dir
;
7551 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7552 && strcmp (multilib_os_dir
, ".") == 0)
7554 free (CONST_CAST (char *, multilib_os_dir
));
7555 multilib_os_dir
= NULL
;
7557 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7558 multilib_os_dir
= multilib_dir
;
7561 /* Print out the multiple library subdirectory selection
7562 information. This prints out a series of lines. Each line looks
7563 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7564 required. Only the desired options are printed out, the negative
7565 matches. The options are print without a leading dash. There are
7566 no spaces to make it easy to use the information in the shell.
7567 Each subdirectory is printed only once. This assumes the ordering
7568 generated by the genmultilib script. Also, we leave out ones that match
7572 print_multilib_info (void)
7574 const char *p
= multilib_select
;
7575 const char *last_path
= 0, *this_path
;
7577 unsigned int last_path_len
= 0;
7582 /* Ignore newlines. */
7589 /* Get the initial path. */
7596 fatal ("multilib select '%s' is invalid", multilib_select
);
7602 /* When --disable-multilib was used but target defines
7603 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7604 to find multilib_os_dir, so skip them from output. */
7605 if (this_path
[0] == '.' && this_path
[1] == ':')
7608 /* Check for matches with the multilib_exclusions. We don't bother
7609 with the '!' in either list. If any of the exclusion rules match
7610 all of its options with the select rule, we skip it. */
7612 const char *e
= multilib_exclusions
;
7613 const char *this_arg
;
7618 /* Ignore newlines. */
7625 /* Check the arguments. */
7634 fatal ("multilib exclusion '%s' is invalid",
7635 multilib_exclusions
);
7646 while (*e
!= ' ' && *e
!= ';')
7649 goto invalid_exclusion
;
7657 int len
= e
- this_arg
;
7660 goto invalid_select
;
7664 while (*q
!= ' ' && *q
!= ';')
7667 goto invalid_select
;
7671 if (! strncmp (arg
, this_arg
,
7672 (len
< q
- arg
) ? q
- arg
: len
)
7673 || default_arg (this_arg
, e
- this_arg
))
7703 /* If this is a duplicate, skip it. */
7704 skip
= (last_path
!= 0
7705 && (unsigned int) (p
- this_path
) == last_path_len
7706 && ! strncmp (last_path
, this_path
, last_path_len
));
7708 last_path
= this_path
;
7709 last_path_len
= p
- this_path
;
7712 /* If this directory requires any default arguments, we can skip
7713 it. We will already have printed a directory identical to
7714 this one which does not require that default argument. */
7725 goto invalid_select
;
7732 while (*q
!= ' ' && *q
!= ';')
7735 goto invalid_select
;
7740 && default_arg (arg
, q
- arg
))
7755 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7766 goto invalid_select
;
7774 use_arg
= *p
!= '!';
7779 while (*p
!= ' ' && *p
!= ';')
7782 goto invalid_select
;
7794 /* If there are extra options, print them now. */
7795 if (multilib_extra
&& *multilib_extra
)
7797 int print_at
= TRUE
;
7800 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7821 /* getenv built-in spec function.
7823 Returns the value of the environment variable given by its first
7824 argument, concatenated with the second argument. If the
7825 environment variable is not defined, a fatal error is issued. */
7828 getenv_spec_function (int argc
, const char **argv
)
7838 value
= getenv (argv
[0]);
7840 fatal ("environment variable \"%s\" not defined", argv
[0]);
7842 /* We have to escape every character of the environment variable so
7843 they are not interpreted as active spec characters. A
7844 particularly painful case is when we are reading a variable
7845 holding a windows path complete with \ separators. */
7846 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7847 result
= XNEWVAR (char, len
);
7848 for (ptr
= result
; *value
; ptr
+= 2)
7854 strcpy (ptr
, argv
[1]);
7859 /* if-exists built-in spec function.
7861 Checks to see if the file specified by the absolute pathname in
7862 ARGS exists. Returns that pathname if found.
7864 The usual use for this function is to check for a library file
7865 (whose name has been expanded with %s). */
7868 if_exists_spec_function (int argc
, const char **argv
)
7870 /* Must have only one argument. */
7871 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7877 /* if-exists-else built-in spec function.
7879 This is like if-exists, but takes an additional argument which
7880 is returned if the first argument does not exist. */
7883 if_exists_else_spec_function (int argc
, const char **argv
)
7885 /* Must have exactly two arguments. */
7889 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7895 /* replace-outfile built-in spec function.
7897 This looks for the first argument in the outfiles array's name and
7898 replaces it with the second argument. */
7901 replace_outfile_spec_function (int argc
, const char **argv
)
7904 /* Must have exactly two arguments. */
7908 for (i
= 0; i
< n_infiles
; i
++)
7910 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7911 outfiles
[i
] = xstrdup (argv
[1]);
7916 /* Given two version numbers, compares the two numbers.
7917 A version number must match the regular expression
7918 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7921 compare_version_strings (const char *v1
, const char *v2
)
7926 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7927 REG_EXTENDED
| REG_NOSUB
) != 0)
7929 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7930 if (rresult
== REG_NOMATCH
)
7931 fatal ("invalid version number `%s'", v1
);
7932 else if (rresult
!= 0)
7934 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7935 if (rresult
== REG_NOMATCH
)
7936 fatal ("invalid version number `%s'", v2
);
7937 else if (rresult
!= 0)
7940 return strverscmp (v1
, v2
);
7944 /* version_compare built-in spec function.
7946 This takes an argument of the following form:
7948 <comparison-op> <arg1> [<arg2>] <switch> <result>
7950 and produces "result" if the comparison evaluates to true,
7951 and nothing if it doesn't.
7953 The supported <comparison-op> values are:
7955 >= true if switch is a later (or same) version than arg1
7957 < true if switch is an earlier version than arg1
7959 >< true if switch is arg1 or later, and earlier than arg2
7960 <> true if switch is earlier than arg1 or is arg2 or later
7962 If the switch is not present, the condition is false unless
7963 the first character of the <comparison-op> is '!'.
7966 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7967 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7970 version_compare_spec_function (int argc
, const char **argv
)
7974 const char *switch_value
= NULL
;
7979 fatal ("too few arguments to %%:version-compare");
7980 if (argv
[0][0] == '\0')
7982 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7984 if (argc
!= nargs
+ 3)
7985 fatal ("too many arguments to %%:version-compare");
7987 switch_len
= strlen (argv
[nargs
+ 1]);
7988 for (i
= 0; i
< n_switches
; i
++)
7989 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7990 && check_live_switch (i
, switch_len
))
7991 switch_value
= switches
[i
].part1
+ switch_len
;
7993 if (switch_value
== NULL
)
7997 comp1
= compare_version_strings (switch_value
, argv
[1]);
7999 comp2
= compare_version_strings (switch_value
, argv
[2]);
8001 comp2
= -1; /* This value unused. */
8004 switch (argv
[0][0] << 8 | argv
[0][1])
8006 case '>' << 8 | '=':
8007 result
= comp1
>= 0;
8009 case '!' << 8 | '<':
8010 result
= comp1
>= 0 || switch_value
== NULL
;
8015 case '!' << 8 | '>':
8016 result
= comp1
< 0 || switch_value
== NULL
;
8018 case '>' << 8 | '<':
8019 result
= comp1
>= 0 && comp2
< 0;
8021 case '<' << 8 | '>':
8022 result
= comp1
< 0 || comp2
>= 0;
8026 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8031 return argv
[nargs
+ 2];
8034 /* %:include builtin spec function. This differs from %include in that it
8035 can be nested inside a spec, and thus be conditionalized. It takes
8036 one argument, the filename, and looks for it in the startfile path.
8037 The result is always NULL, i.e. an empty expansion. */
8040 include_spec_function (int argc
, const char **argv
)
8047 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8048 read_specs (file
? file
: argv
[0], FALSE
);
8053 /* %:print-asm-header spec function. Print a banner to say that the
8054 following output is from the assembler. */
8057 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8058 const char **argv ATTRIBUTE_UNUSED
)
8060 printf (_("Assembler options\n=================\n\n"));
8061 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));