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 program is the user interface to the C compiler and possibly to
23 other compilers. It is used because compilation is a complicated procedure
24 which involves running several programs and passing temporary files between
25 them, forwarding the users switches to those programs selectively,
26 and deleting the temporary files at the end.
28 CC recognizes how to compile each input file by suffixes in the file names.
29 Once it knows which kind of compilation to perform, the procedure for
30 compilation is specified by a string called a "spec". */
32 /* A Short Introduction to Adding a Command-Line Option.
34 Before adding a command-line option, consider if it is really
35 necessary. Each additional command-line option adds complexity and
36 is difficult to remove in subsequent versions.
38 In the following, consider adding the command-line argument
41 1. Each command-line option is specified in the specs file. The
42 notation is described below in the comment entitled "The Specs
45 2. In this file, add an entry to "option_map" equating the long
46 `--' argument version and any shorter, single letter version. Read
47 the comments in the declaration of "struct option_map" for an
48 explanation. Do not omit the first `-'.
50 3. Look in the "specs" file to determine which program or option
51 list should be given the argument, e.g., "cc1_options". Add the
52 appropriate syntax for the shorter option version to the
53 corresponding "const char *" entry in this file. Omit the first
54 `-' from the option. For example, use `-bar', rather than `--bar'.
56 4. If the argument takes an argument, e.g., `--baz argument1',
57 modify either DEFAULT_SWITCH_TAKES_ARG or
58 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
61 5. Document the option in this file's display_help(). If the
62 option is passed to a subprogram, modify its corresponding
63 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
66 6. Compile and test. Make sure that your new specs file is being
67 read. For example, use a debugger to investigate the value of
68 "specs_file" in main(). */
72 #include "coretypes.h"
73 #include "multilib.h" /* before tm.h */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
87 /* By default there is no special suffix for target executables. */
88 /* FIXME: when autoconf is fixed, remove the host check - dj */
89 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
90 #define HAVE_TARGET_EXECUTABLE_SUFFIX
93 /* By default there is no special suffix for host executables. */
94 #ifdef HOST_EXECUTABLE_SUFFIX
95 #define HAVE_HOST_EXECUTABLE_SUFFIX
97 #define HOST_EXECUTABLE_SUFFIX ""
100 /* By default, the suffix for target object files is ".o". */
101 #ifdef TARGET_OBJECT_SUFFIX
102 #define HAVE_TARGET_OBJECT_SUFFIX
104 #define TARGET_OBJECT_SUFFIX ".o"
107 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
109 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
110 #ifndef LIBRARY_PATH_ENV
111 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
115 #define kill(p,s) raise(s)
118 /* If a stage of compilation returns an exit status >= 1,
119 compilation of that file ceases. */
121 #define MIN_FATAL_STATUS 1
123 /* Flag set by cppspec.c to 1. */
126 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
127 static bool at_file_supplied
;
129 /* Flag saying to pass the greatest exit code returned by a sub-process
130 to the calling program. */
131 static int pass_exit_codes
;
133 /* Definition of string containing the arguments given to configure. */
134 #include "configargs.h"
136 /* Flag saying to print the directories gcc will search through looking for
137 programs, libraries, etc. */
139 static int print_search_dirs
;
141 /* Flag saying to print the full filename of this file
142 as found through our usual search mechanism. */
144 static const char *print_file_name
= NULL
;
146 /* As print_file_name, but search for executable file. */
148 static const char *print_prog_name
= NULL
;
150 /* Flag saying to print the relative path we'd use to
151 find libgcc.a given the current compiler flags. */
153 static int print_multi_directory
;
155 static int print_sysroot
;
157 /* Flag saying to print the relative path we'd use to
158 find OS libraries given the current compiler flags. */
160 static int print_multi_os_directory
;
162 /* Flag saying to print the list of subdirectories and
163 compiler flags used to select them in a standard form. */
165 static int print_multi_lib
;
167 /* Flag saying to print the command line options understood by gcc and its
170 static int print_help_list
;
172 /* Flag saying to print the sysroot suffix used for searching for
175 static int print_sysroot_headers_suffix
;
177 /* Flag indicating whether we should print the command and arguments */
179 static int verbose_flag
;
181 /* Flag indicating whether we should ONLY print the command and
182 arguments (like verbose_flag) without executing the command.
183 Displayed arguments are quoted so that the generated command
184 line is suitable for execution. This is intended for use in
185 shell scripts to capture the driver-generated command line. */
186 static int verbose_only_flag
;
188 /* Flag indicating how to print command line options of sub-processes. */
190 static int print_subprocess_help
;
192 /* Flag indicating whether we should report subprocess execution times
193 (if this is supported by the system - see pexecute.c). */
195 static int report_times
;
197 /* Nonzero means place this string before uses of /, so that include
198 and library files can be found in an alternate location. */
200 #ifdef TARGET_SYSTEM_ROOT
201 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
203 static const char *target_system_root
= 0;
206 /* Nonzero means pass the updated target_system_root to the compiler. */
208 static int target_system_root_changed
;
210 /* Nonzero means append this string to target_system_root. */
212 static const char *target_sysroot_suffix
= 0;
214 /* Nonzero means append this string to target_system_root for headers. */
216 static const char *target_sysroot_hdrs_suffix
= 0;
218 /* Nonzero means write "temp" files in source directory
219 and use the source file's name in them, and don't delete them. */
221 static int save_temps_flag
;
223 /* Nonzero means pass multiple source files to the compiler at one time. */
225 static int combine_flag
= 0;
227 /* Nonzero means use pipes to communicate between subprocesses.
228 Overridden by either of the above two flags. */
230 static int use_pipes
;
232 /* The compiler version. */
234 static const char *compiler_version
;
236 /* The target version specified with -V */
238 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
240 /* The target machine specified with -b. */
242 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
244 /* Nonzero if cross-compiling.
245 When -b is used, the value comes from the `specs' file. */
247 #ifdef CROSS_DIRECTORY_STRUCTURE
248 static const char *cross_compile
= "1";
250 static const char *cross_compile
= "0";
253 #ifdef MODIFY_TARGET_NAME
255 /* Information on how to alter the target name based on a command-line
256 switch. The only case we support now is simply appending or deleting a
257 string to or from the end of the first part of the configuration name. */
259 static const struct modify_target
261 const char *const sw
;
262 const enum add_del
{ADD
, DELETE
} add_del
;
263 const char *const str
;
265 modify_target
[] = MODIFY_TARGET_NAME
;
268 /* The number of errors that have occurred; the link phase will not be
269 run if this is nonzero. */
270 static int error_count
= 0;
272 /* Greatest exit code of sub-processes that has been encountered up to
274 static int greatest_status
= 1;
276 /* This is the obstack which we use to allocate many strings. */
278 static struct obstack obstack
;
280 /* This is the obstack to build an environment variable to pass to
281 collect2 that describes all of the relevant switches of what to
282 pass the compiler in building the list of pointers to constructors
285 static struct obstack collect_obstack
;
287 /* This is a list of a wrapper program and its arguments.
288 e.g. wrapper_string of "strace,-c"
289 will cause all programs to run as
290 strace -c program arguments
293 static const char *wrapper_string
;
295 /* Forward declaration for prototypes. */
299 static void init_spec (void);
300 static void store_arg (const char *, int, int);
301 static void insert_wrapper (const char *);
302 static char *load_specs (const char *);
303 static void read_specs (const char *, int);
304 static void set_spec (const char *, const char *);
305 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
306 static char *build_search_list (const struct path_prefix
*, const char *,
308 static void xputenv (const char *);
309 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
311 static int access_check (const char *, int);
312 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
313 static void add_prefix (struct path_prefix
*, const char *, const char *,
315 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
316 const char *, int, int, int);
317 static void translate_options (int *, const char *const **);
318 static char *skip_whitespace (char *);
319 static void delete_if_ordinary (const char *);
320 static void delete_temp_files (void);
321 static void delete_failure_queue (void);
322 static void clear_failure_queue (void);
323 static int check_live_switch (int, int);
324 static const char *handle_braces (const char *);
325 static inline bool input_suffix_matches (const char *, const char *);
326 static inline bool switch_matches (const char *, const char *, int);
327 static inline void mark_matching_switches (const char *, const char *, int);
328 static inline void process_marked_switches (void);
329 static const char *process_brace_body (const char *, const char *, const char *, int, int);
330 static const struct spec_function
*lookup_spec_function (const char *);
331 static const char *eval_spec_function (const char *, const char *);
332 static const char *handle_spec_function (const char *);
333 static char *save_string (const char *, int);
334 static void set_collect_gcc_options (void);
335 static int do_spec_1 (const char *, int, const char *);
336 static int do_spec_2 (const char *);
337 static void do_option_spec (const char *, const char *);
338 static void do_self_spec (const char *);
339 static const char *find_file (const char *);
340 static int is_directory (const char *, bool);
341 static const char *validate_switches (const char *);
342 static void validate_all_switches (void);
343 static inline void validate_switches_from_spec (const char *);
344 static void give_switch (int, int);
345 static int used_arg (const char *, int);
346 static int default_arg (const char *, int);
347 static void set_multilib_dir (void);
348 static void print_multilib_info (void);
349 static void perror_with_name (const char *);
350 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
351 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
352 static void display_help (void);
353 static void add_preprocessor_option (const char *, int);
354 static void add_assembler_option (const char *, int);
355 static void add_linker_option (const char *, int);
356 static void process_command (int, const char **);
357 static int execute (void);
358 static void alloc_args (void);
359 static void clear_args (void);
360 static void fatal_error (int);
361 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
362 static void init_gcc_specs (struct obstack
*, const char *, const char *,
365 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
366 static const char *convert_filename (const char *, int, int);
369 static const char *getenv_spec_function (int, const char **);
370 static const char *if_exists_spec_function (int, const char **);
371 static const char *if_exists_else_spec_function (int, const char **);
372 static const char *replace_outfile_spec_function (int, const char **);
373 static const char *version_compare_spec_function (int, const char **);
374 static const char *include_spec_function (int, const char **);
375 static const char *print_asm_header_spec_function (int, const char **);
377 /* The Specs Language
379 Specs are strings containing lines, each of which (if not blank)
380 is made up of a program name, and arguments separated by spaces.
381 The program name must be exact and start from root, since no path
382 is searched and it is unreliable to depend on the current working directory.
383 Redirection of input or output is not supported; the subprograms must
384 accept filenames saying what files to read and write.
386 In addition, the specs can contain %-sequences to substitute variable text
387 or for conditional text. Here is a table of all defined %-sequences.
388 Note that spaces are not generated automatically around the results of
389 expanding these sequences; therefore, you can concatenate them together
390 or with constant text in a single argument.
392 %% substitute one % into the program name or argument.
393 %i substitute the name of the input file being processed.
394 %b substitute the basename of the input file being processed.
395 This is the substring up to (and not including) the last period
396 and not including the directory.
397 %B same as %b, but include the file suffix (text after the last period).
399 substitute a file name that has suffix SUFFIX and is chosen
400 once per compilation, and mark the argument a la %d. To reduce
401 exposure to denial-of-service attacks, the file name is now
402 chosen in a way that is hard to predict even when previously
403 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
404 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
405 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
406 had been pre-processed. Previously, %g was simply substituted
407 with a file name chosen once per compilation, without regard
408 to any appended suffix (which was therefore treated just like
409 ordinary text), making such attacks more likely to succeed.
411 like %g, but if -pipe is in effect, expands simply to "-".
413 like %g, but if -pipe is in effect, expands to nothing. (We have both
414 %| and %m to accommodate differences between system assemblers; see
415 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
417 like %g, but generates a new temporary file name even if %uSUFFIX
420 substitutes the last file name generated with %uSUFFIX, generating a
421 new one if there is no such last file name. In the absence of any
422 %uSUFFIX, this is just like %gSUFFIX, except they don't share
423 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
424 would involve the generation of two distinct file names, one
425 for each `%g.s' and another for each `%U.s'. Previously, %U was
426 simply substituted with a file name chosen for the previous %u,
427 without regard to any appended suffix.
429 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
430 writable, and if save-temps is off; otherwise, substitute the name
431 of a temporary file, just like %u. This temporary file is not
432 meant for communication between processes, but rather as a junk
435 substitutes .SUFFIX for the suffixes of a matched switch's args when
436 it is subsequently output with %*. SUFFIX is terminated by the next
438 %d marks the argument containing or following the %d as a
439 temporary file name, so that that file will be deleted if CC exits
440 successfully. Unlike %g, this contributes no text to the argument.
441 %w marks the argument containing or following the %w as the
442 "output file" of this compilation. This puts the argument
443 into the sequence of arguments that %o will substitute later.
444 %V indicates that this compilation produces no "output file".
446 like %{...} but mark last argument supplied within
447 as a file to be deleted on failure.
448 %o substitutes the names of all the output files, with spaces
449 automatically placed around them. You should write spaces
450 around the %o as well or the results are undefined.
451 %o is for use in the specs for running the linker.
452 Input files whose names have no recognized suffix are not compiled
453 at all, but they are included among the output files, so they will
455 %O substitutes the suffix for object files. Note that this is
456 handled specially when it immediately follows %g, %u, or %U
457 (with or without a suffix argument) because of the need for
458 those to form complete file names. The handling is such that
459 %O is treated exactly as if it had already been substituted,
460 except that %g, %u, and %U do not currently support additional
461 SUFFIX characters following %O as they would following, for
463 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
464 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
465 and -B options) and -imultilib as necessary.
466 %s current argument is the name of a library or startup file of some sort.
467 Search for that file in a standard list of directories
468 and substitute the full name found.
469 %eSTR Print STR as an error message. STR is terminated by a newline.
470 Use this when inconsistent options are detected.
471 %nSTR Print STR as a notice. STR is terminated by a newline.
472 %x{OPTION} Accumulate an option for %X.
473 %X Output the accumulated linker options specified by compilations.
474 %Y Output the accumulated assembler options specified by compilations.
475 %Z Output the accumulated preprocessor options specified by compilations.
476 %a process ASM_SPEC as a spec.
477 This allows config.h to specify part of the spec for running as.
478 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
479 used here. This can be used to run a post-processor after the
480 assembler has done its job.
481 %D Dump out a -L option for each directory in startfile_prefixes.
482 If multilib_dir is set, extra entries are generated with it affixed.
483 %l process LINK_SPEC as a spec.
484 %L process LIB_SPEC as a spec.
485 %G process LIBGCC_SPEC as a spec.
486 %R Output the concatenation of target_system_root and
487 target_sysroot_suffix.
488 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
489 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
490 %C process CPP_SPEC as a spec.
491 %1 process CC1_SPEC as a spec.
492 %2 process CC1PLUS_SPEC as a spec.
493 %* substitute the variable part of a matched option. (See below.)
494 Note that each comma in the substituted string is replaced by
496 %<S remove all occurrences of -S from the command line.
497 Note - this command is position dependent. % commands in the
498 spec string before this one will see -S, % commands in the
499 spec string after this one will not.
500 %<S* remove all occurrences of all switches beginning with -S from the
503 Call the named function FUNCTION, passing it ARGS. ARGS is
504 first processed as a nested spec string, then split into an
505 argument vector in the usual fashion. The function returns
506 a string which is processed as if it had appeared literally
507 as part of the current spec.
508 %{S} substitutes the -S switch, if that switch was given to CC.
509 If that switch was not specified, this substitutes nothing.
510 Here S is a metasyntactic variable.
511 %{S*} substitutes all the switches specified to CC whose names start
512 with -S. This is used for -o, -I, etc; switches that take
513 arguments. CC considers `-o foo' as being one switch whose
514 name starts with `o'. %{o*} would substitute this text,
515 including the space; thus, two arguments would be generated.
516 %{S*&T*} likewise, but preserve order of S and T options (the order
517 of S and T in the spec is not significant). Can be any number
518 of ampersand-separated variables; for each the wild card is
519 optional. Useful for CPP as %{D*&U*&A*}.
521 %{S:X} substitutes X, if the -S switch was given to CC.
522 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
523 %{S*:X} substitutes X if one or more switches whose names start
524 with -S was given to CC. Normally X is substituted only
525 once, no matter how many such switches appeared. However,
526 if %* appears somewhere in X, then X will be substituted
527 once for each matching switch, with the %* replaced by the
528 part of that switch that matched the '*'.
529 %{.S:X} substitutes X, if processing a file with suffix S.
530 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
531 %{,S:X} substitutes X, if processing a file which will use spec S.
532 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
534 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
535 combined with '!', '.', ',', and '*' as above binding stronger
537 If %* appears in X, all of the alternatives must be starred, and
538 only the first matching alternative is substituted.
539 %{S:X; if S was given to CC, substitutes X;
540 T:Y; else if T was given to CC, substitutes Y;
541 :D} else substitutes D. There can be as many clauses as you need.
542 This may be combined with '.', '!', ',', '|', and '*' as above.
544 %(Spec) processes a specification defined in a specs file as *Spec:
545 %[Spec] as above, but put __ around -D arguments
547 The conditional text X in a %{S:X} or similar construct may contain
548 other nested % constructs or spaces, or even newlines. They are
549 processed as usual, as described above. Trailing white space in X is
550 ignored. White space may also appear anywhere on the left side of the
551 colon in these constructs, except between . or * and the corresponding
554 The -O, -f, -m, and -W switches are handled specifically in these
555 constructs. If another value of -O or the negated form of a -f, -m, or
556 -W switch is found later in the command line, the earlier switch
557 value is ignored, except with {S*} where S is just one letter; this
558 passes all matching options.
560 The character | at the beginning of the predicate text is used to indicate
561 that a command should be piped to the following command, but only if -pipe
564 Note that it is built into CC which switches take arguments and which
565 do not. You might think it would be useful to generalize this to
566 allow each compiler's spec to say which switches take arguments. But
567 this cannot be done in a consistent fashion. CC cannot even decide
568 which input files have been specified without knowing which switches
569 take arguments, and it must know which input files to compile in order
570 to tell which compilers to run.
572 CC also knows implicitly that arguments starting in `-l' are to be
573 treated as compiler output files, and passed to the linker in their
574 proper position among the other output files. */
576 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
578 /* config.h can define ASM_SPEC to provide extra args to the assembler
579 or extra switch-translations. */
584 /* config.h can define ASM_FINAL_SPEC to run a post processor after
585 the assembler has run. */
586 #ifndef ASM_FINAL_SPEC
587 #define ASM_FINAL_SPEC ""
590 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
591 or extra switch-translations. */
596 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
597 or extra switch-translations. */
602 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
603 or extra switch-translations. */
605 #define CC1PLUS_SPEC ""
608 /* config.h can define LINK_SPEC to provide extra args to the linker
609 or extra switch-translations. */
614 /* config.h can define LIB_SPEC to override the default libraries. */
616 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
621 /* XXX: valid only for GNU ld */
622 /* XXX: should exactly match hooks provided by libmudflap.a */
623 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
624 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
625 --wrap=mmap --wrap=munmap --wrap=alloca\
626 } %{fmudflapth: --wrap=pthread_create\
627 }} %{fmudflap|fmudflapth: --wrap=main}"
630 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
633 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
636 #if defined(REAL_LIBGCC_SPEC)
637 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
638 #elif defined(LINK_LIBGCC_SPECIAL_1)
639 /* Have gcc do the search for libgcc.a. */
640 #define LIBGCC_SPEC "libgcc.a%s"
642 #define LIBGCC_SPEC "-lgcc"
646 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
647 #ifndef STARTFILE_SPEC
648 #define STARTFILE_SPEC \
649 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
652 /* config.h can define SWITCHES_NEED_SPACES to control which options
653 require spaces between the option and the argument. */
654 #ifndef SWITCHES_NEED_SPACES
655 #define SWITCHES_NEED_SPACES ""
658 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
660 #define ENDFILE_SPEC ""
664 #define LINKER_NAME "collect2"
667 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
668 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
673 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
675 #ifndef ASM_DEBUG_SPEC
676 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
677 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
678 # define ASM_DEBUG_SPEC \
679 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
680 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" ASM_MAP \
681 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}" ASM_MAP)
683 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
684 # define ASM_DEBUG_SPEC "%{g*:--gstabs}" ASM_MAP
686 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
687 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" ASM_MAP
691 #ifndef ASM_DEBUG_SPEC
692 # define ASM_DEBUG_SPEC ""
695 /* Here is the spec for running the linker, after compiling all files. */
697 /* This is overridable by the target in case they need to specify the
698 -lgcc and -lc order specially, yet not require them to override all
699 of LINK_COMMAND_SPEC. */
700 #ifndef LINK_GCC_C_SEQUENCE_SPEC
701 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
704 #ifndef LINK_SSP_SPEC
705 #ifdef TARGET_LIBC_PROVIDES_SSP
706 #define LINK_SSP_SPEC "%{fstack-protector:}"
708 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
712 #ifndef LINK_PIE_SPEC
714 #define LINK_PIE_SPEC "%{pie:-pie} "
716 #define LINK_PIE_SPEC "%{pie:} "
720 /* -u* was put back because both BSD and SysV seem to support it. */
721 /* %{static:} simply prevents an error message if the target machine
722 doesn't handle -static. */
723 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
724 scripts which exist in user specified directories, or in standard
726 #ifndef LINK_COMMAND_SPEC
727 #define LINK_COMMAND_SPEC "\
728 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
729 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
730 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
731 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
732 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
733 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
734 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
735 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
738 #ifndef LINK_LIBGCC_SPEC
739 /* Generate -L options for startfile prefix list. */
740 # define LINK_LIBGCC_SPEC "%D"
743 #ifndef STARTFILE_PREFIX_SPEC
744 # define STARTFILE_PREFIX_SPEC ""
748 # define SYSROOT_SPEC "--sysroot=%R"
751 #ifndef SYSROOT_SUFFIX_SPEC
752 # define SYSROOT_SUFFIX_SPEC ""
755 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
756 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
759 static const char *asm_debug
;
760 static const char *cpp_spec
= CPP_SPEC
;
761 static const char *cc1_spec
= CC1_SPEC
;
762 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
763 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
764 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
765 static const char *asm_spec
= ASM_SPEC
;
766 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
767 static const char *link_spec
= LINK_SPEC
;
768 static const char *lib_spec
= LIB_SPEC
;
769 static const char *mfwrap_spec
= MFWRAP_SPEC
;
770 static const char *mflib_spec
= MFLIB_SPEC
;
771 static const char *link_gomp_spec
= "";
772 static const char *libgcc_spec
= LIBGCC_SPEC
;
773 static const char *endfile_spec
= ENDFILE_SPEC
;
774 static const char *startfile_spec
= STARTFILE_SPEC
;
775 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
776 static const char *linker_name_spec
= LINKER_NAME
;
777 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
778 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
779 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
780 static const char *sysroot_spec
= SYSROOT_SPEC
;
781 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
782 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
784 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
785 There should be no need to override these in target dependent files,
786 but we need to copy them to the specs file so that newer versions
787 of the GCC driver can correctly drive older tool chains with the
788 appropriate -B options. */
790 /* When cpplib handles traditional preprocessing, get rid of this, and
791 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
792 that we default the front end language better. */
793 static const char *trad_capable_cpp
=
794 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
796 /* We don't wrap .d files in %W{} since a missing .d file, and
797 therefore no dependency entry, confuses make into thinking a .o
798 file that happens to exist is up-to-date. */
799 static const char *cpp_unique_options
=
800 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
801 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
802 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
803 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
804 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
805 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
806 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
807 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
808 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
809 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
812 /* This contains cpp options which are common with cc1_options and are passed
813 only when preprocessing only to avoid duplication. We pass the cc1 spec
814 options to the preprocessor so that it the cc1 spec may manipulate
815 options used to set target flags. Those special target flags settings may
816 in turn cause preprocessor symbols to be defined specially. */
817 static const char *cpp_options
=
818 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
819 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
820 %{undef} %{save-temps:-fpch-preprocess}";
822 /* This contains cpp options which are not passed when the preprocessor
823 output will be used by another program. */
824 static const char *cpp_debug_options
= "%{d*}";
826 /* NB: This is shared amongst all front-ends, except for Ada. */
827 static const char *cc1_options
=
828 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
829 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
830 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
831 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
832 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
833 %{Qn:-fno-ident} %{--help:--help}\
834 %{--target-help:--target-help}\
835 %{--help=*:--help=%(VALUE)}\
836 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
837 %{fsyntax-only:-o %j} %{-param*}\
838 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
839 %{coverage:-fprofile-arcs -ftest-coverage}";
841 static const char *asm_options
=
842 "%{--target-help:%:print-asm-header()} "
844 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
845 to the assembler equivalents. */
846 "%{v} %{w:-W} %{I*} "
848 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
850 static const char *invoke_as
=
851 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
852 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
854 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
857 /* Some compilers have limits on line lengths, and the multilib_select
858 and/or multilib_matches strings can be very long, so we build them at
860 static struct obstack multilib_obstack
;
861 static const char *multilib_select
;
862 static const char *multilib_matches
;
863 static const char *multilib_defaults
;
864 static const char *multilib_exclusions
;
866 /* Check whether a particular argument is a default argument. */
868 #ifndef MULTILIB_DEFAULTS
869 #define MULTILIB_DEFAULTS { "" }
872 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
874 #ifndef DRIVER_SELF_SPECS
875 #define DRIVER_SELF_SPECS ""
878 /* Adding -fopenmp should imply pthreads. This is particularly important
879 for targets that use different start files and suchlike. */
880 #ifndef GOMP_SELF_SPECS
881 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
884 static const char *const driver_self_specs
[] = {
885 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
888 #ifndef OPTION_DEFAULT_SPECS
889 #define OPTION_DEFAULT_SPECS { "", "" }
898 static const struct default_spec
899 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
903 struct user_specs
*next
;
904 const char *filename
;
907 static struct user_specs
*user_specs_head
, *user_specs_tail
;
909 #ifndef SWITCH_TAKES_ARG
910 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
913 #ifndef WORD_SWITCH_TAKES_ARG
914 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
917 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
918 /* This defines which switches stop a full compilation. */
919 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
920 ((CHAR) == 'c' || (CHAR) == 'S')
922 #ifndef SWITCH_CURTAILS_COMPILATION
923 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
924 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
928 /* Record the mapping from file suffixes for compilation specs. */
932 const char *suffix
; /* Use this compiler for input files
933 whose names end in this suffix. */
935 const char *spec
; /* To use this compiler, run this spec. */
937 const char *cpp_spec
; /* If non-NULL, substitute this spec
938 for `%C', rather than the usual
940 const int combinable
; /* If nonzero, compiler can deal with
941 multiple source files at once (IMA). */
942 const int needs_preprocessing
; /* If nonzero, source files need to
943 be run through a preprocessor. */
946 /* Pointer to a vector of `struct compiler' that gives the spec for
947 compiling a file, based on its suffix.
948 A file that does not end in any of these suffixes will be passed
949 unchanged to the loader and nothing else will be done to it.
951 An entry containing two 0s is used to terminate the vector.
953 If multiple entries match a file, the last matching one is used. */
955 static struct compiler
*compilers
;
957 /* Number of entries in `compilers', not counting the null terminator. */
959 static int n_compilers
;
961 /* The default list of file name suffixes and their compilation specs. */
963 static const struct compiler default_compilers
[] =
965 /* Add lists of suffixes of known languages here. If those languages
966 were not present when we built the driver, we will hit these copies
967 and be given a more meaningful error than "file not used since
968 linking is not done". */
969 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
970 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
971 {".mii", "#Objective-C++", 0, 0, 0},
972 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
973 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
974 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
975 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
976 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
977 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
978 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
979 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
980 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
981 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
982 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
983 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
984 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
985 {".r", "#Ratfor", 0, 0, 0},
986 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
987 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
988 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
989 /* Next come the entries for C. */
990 {".c", "@c", 0, 1, 1},
992 /* cc1 has an integrated ISO C preprocessor. We should invoke the
993 external preprocessor if -save-temps is given. */
994 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
996 %{traditional|ftraditional:\
997 %eGNU C no longer supports -traditional without -E}\
999 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1000 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1001 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1003 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1004 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1005 %{!fsyntax-only:%(invoke_as)}} \
1007 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1008 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
1009 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1010 cc1 %(cpp_unique_options) %(cc1_options)}}\
1011 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1013 "%{!E:%e-E or -x required when input is from standard input}\
1014 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1015 {".h", "@c-header", 0, 0, 0},
1017 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1018 external preprocessor if -save-temps is given. */
1019 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1021 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1022 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1023 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1025 -o %g.s %{!o*:--output-pch=%i.gch}\
1026 %W{o*:--output-pch=%*}%V}\
1027 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1028 cc1 %(cpp_unique_options) %(cc1_options)\
1029 -o %g.s %{!o*:--output-pch=%i.gch}\
1030 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1031 {".i", "@cpp-output", 0, 1, 0},
1033 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1034 {".s", "@assembler", 0, 1, 0},
1036 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1037 {".sx", "@assembler-with-cpp", 0, 1, 0},
1038 {".S", "@assembler-with-cpp", 0, 1, 0},
1039 {"@assembler-with-cpp",
1040 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1041 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1042 %{E|M|MM:%(cpp_debug_options)}\
1043 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1044 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1046 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1047 %{E|M|MM:%(cpp_debug_options)}\
1048 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1049 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1054 /* Mark end of table. */
1058 /* Number of elements in default_compilers, not counting the terminator. */
1060 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1062 /* A vector of options to give to the linker.
1063 These options are accumulated by %x,
1064 and substituted into the linker command with %X. */
1065 static int n_linker_options
;
1066 static char **linker_options
;
1068 /* A vector of options to give to the assembler.
1069 These options are accumulated by -Wa,
1070 and substituted into the assembler command with %Y. */
1071 static int n_assembler_options
;
1072 static char **assembler_options
;
1074 /* A vector of options to give to the preprocessor.
1075 These options are accumulated by -Wp,
1076 and substituted into the preprocessor command with %Z. */
1077 static int n_preprocessor_options
;
1078 static char **preprocessor_options
;
1080 /* Define how to map long options into short ones. */
1082 /* This structure describes one mapping. */
1085 /* The long option's name. */
1086 const char *const name
;
1087 /* The equivalent short option. */
1088 const char *const equivalent
;
1089 /* Argument info. A string of flag chars; NULL equals no options.
1090 a => argument required.
1091 o => argument optional.
1092 j => join argument to equivalent, making one word.
1093 * => require other text after NAME as an argument. */
1094 const char *const arg_info
;
1097 /* This is the table of mappings. Mappings are tried sequentially
1098 for each option encountered; the first one that matches, wins. */
1100 static const struct option_map option_map
[] =
1102 {"--all-warnings", "-Wall", 0},
1103 {"--ansi", "-ansi", 0},
1104 {"--assemble", "-S", 0},
1105 {"--assert", "-A", "a"},
1106 {"--classpath", "-fclasspath=", "aj"},
1107 {"--bootclasspath", "-fbootclasspath=", "aj"},
1108 {"--CLASSPATH", "-fclasspath=", "aj"},
1109 {"--combine", "-combine", 0},
1110 {"--comments", "-C", 0},
1111 {"--comments-in-macros", "-CC", 0},
1112 {"--compile", "-c", 0},
1113 {"--debug", "-g", "oj"},
1114 {"--define-macro", "-D", "aj"},
1115 {"--dependencies", "-M", 0},
1116 {"--dump", "-d", "a"},
1117 {"--dumpbase", "-dumpbase", "a"},
1118 {"--encoding", "-fencoding=", "aj"},
1119 {"--entry", "-e", 0},
1120 {"--extra-warnings", "-W", 0},
1121 {"--extdirs", "-fextdirs=", "aj"},
1122 {"--for-assembler", "-Wa", "a"},
1123 {"--for-linker", "-Xlinker", "a"},
1124 {"--force-link", "-u", "a"},
1125 {"--coverage", "-coverage", 0},
1126 {"--imacros", "-imacros", "a"},
1127 {"--include", "-include", "a"},
1128 {"--include-barrier", "-I-", 0},
1129 {"--include-directory", "-I", "aj"},
1130 {"--include-directory-after", "-idirafter", "a"},
1131 {"--include-prefix", "-iprefix", "a"},
1132 {"--include-with-prefix", "-iwithprefix", "a"},
1133 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1134 {"--include-with-prefix-after", "-iwithprefix", "a"},
1135 {"--language", "-x", "a"},
1136 {"--library-directory", "-L", "a"},
1137 {"--machine", "-m", "aj"},
1138 {"--machine-", "-m", "*j"},
1139 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1140 {"--no-line-commands", "-P", 0},
1141 {"--no-precompiled-includes", "-noprecomp", 0},
1142 {"--no-standard-includes", "-nostdinc", 0},
1143 {"--no-standard-libraries", "-nostdlib", 0},
1144 {"--no-warnings", "-w", 0},
1145 {"--optimize", "-O", "oj"},
1146 {"--output", "-o", "a"},
1147 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1148 {"--param", "--param", "a"},
1149 {"--pass-exit-codes", "-pass-exit-codes", 0},
1150 {"--pedantic", "-pedantic", 0},
1151 {"--pedantic-errors", "-pedantic-errors", 0},
1152 {"--pie", "-pie", 0},
1153 {"--pipe", "-pipe", 0},
1154 {"--prefix", "-B", "a"},
1155 {"--preprocess", "-E", 0},
1156 {"--print-search-dirs", "-print-search-dirs", 0},
1157 {"--print-file-name", "-print-file-name=", "aj"},
1158 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1159 {"--print-missing-file-dependencies", "-MG", 0},
1160 {"--print-multi-lib", "-print-multi-lib", 0},
1161 {"--print-multi-directory", "-print-multi-directory", 0},
1162 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1163 {"--print-prog-name", "-print-prog-name=", "aj"},
1164 {"--print-sysroot", "-print-sysroot", 0},
1165 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1166 {"--profile", "-p", 0},
1167 {"--profile-blocks", "-a", 0},
1168 {"--quiet", "-q", 0},
1169 {"--resource", "-fcompile-resource=", "aj"},
1170 {"--save-temps", "-save-temps", 0},
1171 {"--shared", "-shared", 0},
1172 {"--silent", "-q", 0},
1173 {"--specs", "-specs=", "aj"},
1174 {"--static", "-static", 0},
1175 {"--std", "-std=", "aj"},
1176 {"--symbolic", "-symbolic", 0},
1177 {"--sysroot", "--sysroot=", "aj"},
1178 {"--time", "-time", 0},
1179 {"--trace-includes", "-H", 0},
1180 {"--traditional", "-traditional", 0},
1181 {"--traditional-cpp", "-traditional-cpp", 0},
1182 {"--trigraphs", "-trigraphs", 0},
1183 {"--undefine-macro", "-U", "aj"},
1184 {"--user-dependencies", "-MM", 0},
1185 {"--verbose", "-v", 0},
1186 {"--warn-", "-W", "*j"},
1187 {"--write-dependencies", "-MD", 0},
1188 {"--write-user-dependencies", "-MMD", 0},
1193 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1194 static const struct {
1195 const char *const option_found
;
1196 const char *const replacements
;
1197 } target_option_translations
[] =
1199 TARGET_OPTION_TRANSLATE_TABLE
,
1204 /* Translate the options described by *ARGCP and *ARGVP.
1205 Make a new vector and store it back in *ARGVP,
1206 and store its length in *ARGCP. */
1209 translate_options (int *argcp
, const char *const **argvp
)
1213 const char *const *argv
= *argvp
;
1214 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1215 const char **newv
= XNEWVAR (const char *, newvsize
);
1219 newv
[newindex
++] = argv
[i
++];
1223 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1227 target_option_translations
[tott_idx
].option_found
;
1230 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1237 for (sp
= target_option_translations
[tott_idx
].replacements
;
1244 newvsize
+= spaces
* sizeof (const char *);
1245 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1247 sp
= target_option_translations
[tott_idx
].replacements
;
1256 newv
[newindex
++] = np
;
1257 while (*np
!= ' ' && *np
)
1268 if (target_option_translations
[tott_idx
].option_found
)
1272 /* Translate -- options. */
1273 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1276 /* Find a mapping that applies to this option. */
1277 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1279 size_t optlen
= strlen (option_map
[j
].name
);
1280 size_t arglen
= strlen (argv
[i
]);
1281 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1282 const char *arginfo
= option_map
[j
].arg_info
;
1287 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1289 const char *arg
= 0;
1291 if (arglen
< optlen
)
1294 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1295 if (strlen (option_map
[k
].name
) >= arglen
1296 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1298 error ("ambiguous abbreviation %s", argv
[i
]);
1302 if (k
!= ARRAY_SIZE (option_map
))
1306 if (arglen
> optlen
)
1308 /* If the option has an argument, accept that. */
1309 if (argv
[i
][optlen
] == '=')
1310 arg
= argv
[i
] + optlen
+ 1;
1312 /* If this mapping requires extra text at end of name,
1313 accept that as "argument". */
1314 else if (strchr (arginfo
, '*') != 0)
1315 arg
= argv
[i
] + optlen
;
1317 /* Otherwise, extra text at end means mismatch.
1318 Try other mappings. */
1323 else if (strchr (arginfo
, '*') != 0)
1325 error ("incomplete '%s' option", option_map
[j
].name
);
1329 /* Handle arguments. */
1330 if (strchr (arginfo
, 'a') != 0)
1336 error ("missing argument to '%s' option",
1337 option_map
[j
].name
);
1344 else if (strchr (arginfo
, '*') != 0)
1346 else if (strchr (arginfo
, 'o') == 0)
1349 error ("extraneous argument to '%s' option",
1350 option_map
[j
].name
);
1354 /* Store the translation as one argv elt or as two. */
1355 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1356 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1360 newv
[newindex
++] = option_map
[j
].equivalent
;
1361 newv
[newindex
++] = arg
;
1364 newv
[newindex
++] = option_map
[j
].equivalent
;
1372 /* Handle old-fashioned options--just copy them through,
1373 with their arguments. */
1374 else if (argv
[i
][0] == '-')
1376 const char *p
= argv
[i
] + 1;
1380 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1381 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1382 else if (WORD_SWITCH_TAKES_ARG (p
))
1383 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1384 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1387 else if (! strcmp (p
, "Xlinker"))
1389 else if (! strcmp (p
, "Xpreprocessor"))
1391 else if (! strcmp (p
, "Xassembler"))
1394 /* Watch out for an option at the end of the command line that
1395 is missing arguments, and avoid skipping past the end of the
1397 if (nskip
+ i
> argc
)
1402 newv
[newindex
++] = argv
[i
++];
1407 /* Ordinary operands, or +e options. */
1408 newv
[newindex
++] = argv
[i
++];
1418 skip_whitespace (char *p
)
1422 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1423 be considered whitespace. */
1424 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1426 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1440 /* Structures to keep track of prefixes to try when looking for files. */
1444 const char *prefix
; /* String to prepend to the path. */
1445 struct prefix_list
*next
; /* Next in linked list. */
1446 int require_machine_suffix
; /* Don't use without machine_suffix. */
1447 /* 2 means try both machine_suffix and just_machine_suffix. */
1448 int priority
; /* Sort key - priority within list. */
1449 int os_multilib
; /* 1 if OS multilib scheme should be used,
1450 0 for GCC multilib scheme. */
1455 struct prefix_list
*plist
; /* List of prefixes to try */
1456 int max_len
; /* Max length of a prefix in PLIST */
1457 const char *name
; /* Name of this list (used in config stuff) */
1460 /* List of prefixes to try when looking for executables. */
1462 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1464 /* List of prefixes to try when looking for startup (crt0) files. */
1466 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1468 /* List of prefixes to try when looking for include files. */
1470 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1472 /* Suffix to attach to directories searched for commands.
1473 This looks like `MACHINE/VERSION/'. */
1475 static const char *machine_suffix
= 0;
1477 /* Suffix to attach to directories searched for commands.
1478 This is just `MACHINE/'. */
1480 static const char *just_machine_suffix
= 0;
1482 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1484 static const char *gcc_exec_prefix
;
1486 /* Adjusted value of standard_libexec_prefix. */
1488 static const char *gcc_libexec_prefix
;
1490 /* Default prefixes to attach to command names. */
1492 #ifndef STANDARD_STARTFILE_PREFIX_1
1493 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1495 #ifndef STANDARD_STARTFILE_PREFIX_2
1496 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1499 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1500 #undef MD_EXEC_PREFIX
1501 #undef MD_STARTFILE_PREFIX
1502 #undef MD_STARTFILE_PREFIX_1
1505 /* If no prefixes defined, use the null string, which will disable them. */
1506 #ifndef MD_EXEC_PREFIX
1507 #define MD_EXEC_PREFIX ""
1509 #ifndef MD_STARTFILE_PREFIX
1510 #define MD_STARTFILE_PREFIX ""
1512 #ifndef MD_STARTFILE_PREFIX_1
1513 #define MD_STARTFILE_PREFIX_1 ""
1516 /* These directories are locations set at configure-time based on the
1517 --prefix option provided to configure. Their initializers are
1518 defined in Makefile.in. These paths are not *directly* used when
1519 gcc_exec_prefix is set because, in that case, we know where the
1520 compiler has been installed, and use paths relative to that
1521 location instead. */
1522 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1523 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1524 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1525 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1527 /* For native compilers, these are well-known paths containing
1528 components that may be provided by the system. For cross
1529 compilers, these paths are not used. */
1530 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1531 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1532 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1533 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1534 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1535 static const char *const standard_startfile_prefix_1
1536 = STANDARD_STARTFILE_PREFIX_1
;
1537 static const char *const standard_startfile_prefix_2
1538 = STANDARD_STARTFILE_PREFIX_2
;
1540 /* A relative path to be used in finding the location of tools
1541 relative to the driver. */
1542 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1544 /* Subdirectory to use for locating libraries. Set by
1545 set_multilib_dir based on the compilation options. */
1547 static const char *multilib_dir
;
1549 /* Subdirectory to use for locating libraries in OS conventions. Set by
1550 set_multilib_dir based on the compilation options. */
1552 static const char *multilib_os_dir
;
1554 /* Structure to keep track of the specs that have been defined so far.
1555 These are accessed using %(specname) or %[specname] in a compiler
1560 /* The following 2 fields must be first */
1561 /* to allow EXTRA_SPECS to be initialized */
1562 const char *name
; /* name of the spec. */
1563 const char *ptr
; /* available ptr if no static pointer */
1565 /* The following fields are not initialized */
1566 /* by EXTRA_SPECS */
1567 const char **ptr_spec
; /* pointer to the spec itself. */
1568 struct spec_list
*next
; /* Next spec in linked list. */
1569 int name_len
; /* length of the name */
1570 int alloc_p
; /* whether string was allocated */
1573 #define INIT_STATIC_SPEC(NAME,PTR) \
1574 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1576 /* List of statically defined specs. */
1577 static struct spec_list static_specs
[] =
1579 INIT_STATIC_SPEC ("asm", &asm_spec
),
1580 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1581 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1582 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1583 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1584 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1585 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1586 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1587 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1588 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1589 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1590 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1591 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1592 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1593 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1594 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1595 INIT_STATIC_SPEC ("link", &link_spec
),
1596 INIT_STATIC_SPEC ("lib", &lib_spec
),
1597 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1598 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1599 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1600 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1601 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1602 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1603 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1604 INIT_STATIC_SPEC ("version", &compiler_version
),
1605 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1606 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1607 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1608 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1609 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1610 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1611 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1612 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1613 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1614 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1615 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1616 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1617 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1618 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1619 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1622 #ifdef EXTRA_SPECS /* additional specs needed */
1623 /* Structure to keep track of just the first two args of a spec_list.
1624 That is all that the EXTRA_SPECS macro gives us. */
1627 const char *const name
;
1628 const char *const ptr
;
1631 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1632 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1635 /* List of dynamically allocates specs that have been defined so far. */
1637 static struct spec_list
*specs
= (struct spec_list
*) 0;
1639 /* List of static spec functions. */
1641 static const struct spec_function static_spec_functions
[] =
1643 { "getenv", getenv_spec_function
},
1644 { "if-exists", if_exists_spec_function
},
1645 { "if-exists-else", if_exists_else_spec_function
},
1646 { "replace-outfile", replace_outfile_spec_function
},
1647 { "version-compare", version_compare_spec_function
},
1648 { "include", include_spec_function
},
1649 { "print-asm-header", print_asm_header_spec_function
},
1650 #ifdef EXTRA_SPEC_FUNCTIONS
1651 EXTRA_SPEC_FUNCTIONS
1656 static int processing_spec_function
;
1658 /* Add appropriate libgcc specs to OBSTACK, taking into account
1659 various permutations of -shared-libgcc, -shared, and such. */
1661 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1663 #ifndef USE_LD_AS_NEEDED
1664 #define USE_LD_AS_NEEDED 0
1668 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1669 const char *static_name
, const char *eh_name
)
1673 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1674 "%{!static:%{!static-libgcc:"
1675 #if USE_LD_AS_NEEDED
1676 "%{!shared-libgcc:",
1677 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1680 shared_name
, "%{!shared: ", static_name
, "}"
1684 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1685 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1689 "%{shared-libgcc:", shared_name
, "}"
1690 "%{!shared-libgcc:", static_name
, "}"
1693 "%{shared:", shared_name
, "}"
1698 obstack_grow (obstack
, buf
, strlen (buf
));
1701 #endif /* ENABLE_SHARED_LIBGCC */
1703 /* Initialize the specs lookup routines. */
1708 struct spec_list
*next
= (struct spec_list
*) 0;
1709 struct spec_list
*sl
= (struct spec_list
*) 0;
1713 return; /* Already initialized. */
1716 notice ("Using built-in specs.\n");
1719 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1721 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1723 sl
= &extra_specs
[i
];
1724 sl
->name
= extra_specs_1
[i
].name
;
1725 sl
->ptr
= extra_specs_1
[i
].ptr
;
1727 sl
->name_len
= strlen (sl
->name
);
1728 sl
->ptr_spec
= &sl
->ptr
;
1733 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1735 sl
= &static_specs
[i
];
1740 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1741 /* ??? If neither -shared-libgcc nor --static-libgcc was
1742 seen, then we should be making an educated guess. Some proposed
1743 heuristics for ELF include:
1745 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1746 program will be doing dynamic loading, which will likely
1747 need the shared libgcc.
1749 (2) If "-ldl", then it's also a fair bet that we're doing
1752 (3) For each ET_DYN we're linking against (either through -lfoo
1753 or /some/path/foo.so), check to see whether it or one of
1754 its dependencies depends on a shared libgcc.
1758 If the runtime is fixed to look for program headers instead
1759 of calling __register_frame_info at all, for each object,
1760 use the shared libgcc if any EH symbol referenced.
1762 If crtstuff is fixed to not invoke __register_frame_info
1763 automatically, for each object, use the shared libgcc if
1764 any non-empty unwind section found.
1766 Doing any of this probably requires invoking an external program to
1767 do the actual object file scanning. */
1769 const char *p
= libgcc_spec
;
1772 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1773 when given the proper command line arguments. */
1776 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1778 init_gcc_specs (&obstack
,
1780 #ifdef USE_LIBUNWIND_EXCEPTIONS
1786 #ifdef USE_LIBUNWIND_EXCEPTIONS
1787 # ifdef HAVE_LD_STATIC_DYNAMIC
1788 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1798 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1800 /* Ug. We don't know shared library extensions. Hope that
1801 systems that use this form don't do shared libraries. */
1802 init_gcc_specs (&obstack
,
1806 #ifdef USE_LIBUNWIND_EXCEPTIONS
1815 obstack_1grow (&obstack
, *p
);
1816 in_sep
= (*p
== ' ');
1821 obstack_1grow (&obstack
, '\0');
1822 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1825 #ifdef USE_AS_TRADITIONAL_FORMAT
1826 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1828 static const char tf
[] = "--traditional-format ";
1829 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1830 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1831 asm_spec
= XOBFINISH (&obstack
, const char *);
1835 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1836 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1837 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1838 link_spec
= XOBFINISH (&obstack
, const char *);
1844 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1845 removed; If the spec starts with a + then SPEC is added to the end of the
1849 set_spec (const char *name
, const char *spec
)
1851 struct spec_list
*sl
;
1852 const char *old_spec
;
1853 int name_len
= strlen (name
);
1856 /* If this is the first call, initialize the statically allocated specs. */
1859 struct spec_list
*next
= (struct spec_list
*) 0;
1860 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1862 sl
= &static_specs
[i
];
1869 /* See if the spec already exists. */
1870 for (sl
= specs
; sl
; sl
= sl
->next
)
1871 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1876 /* Not found - make it. */
1877 sl
= XNEW (struct spec_list
);
1878 sl
->name
= xstrdup (name
);
1879 sl
->name_len
= name_len
;
1880 sl
->ptr_spec
= &sl
->ptr
;
1882 *(sl
->ptr_spec
) = "";
1887 old_spec
= *(sl
->ptr_spec
);
1888 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1889 ? concat (old_spec
, spec
+ 1, NULL
)
1894 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1897 /* Free the old spec. */
1898 if (old_spec
&& sl
->alloc_p
)
1899 free (CONST_CAST(char *, old_spec
));
1904 /* Accumulate a command (program name and args), and run it. */
1906 /* Vector of pointers to arguments in the current line of specifications. */
1908 static const char **argbuf
;
1910 /* Number of elements allocated in argbuf. */
1912 static int argbuf_length
;
1914 /* Number of elements in argbuf currently in use (containing args). */
1916 static int argbuf_index
;
1918 /* Position in the argbuf array containing the name of the output file
1919 (the value associated with the "-o" flag). */
1921 static int have_o_argbuf_index
= 0;
1923 /* Were the options -c or -S passed. */
1924 static int have_c
= 0;
1926 /* Was the option -o passed. */
1927 static int have_o
= 0;
1929 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1930 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1933 static struct temp_name
{
1934 const char *suffix
; /* suffix associated with the code. */
1935 int length
; /* strlen (suffix). */
1936 int unique
; /* Indicates whether %g or %u/%U was used. */
1937 const char *filename
; /* associated filename. */
1938 int filename_length
; /* strlen (filename). */
1939 struct temp_name
*next
;
1942 /* Number of commands executed so far. */
1944 static int execution_count
;
1946 /* Number of commands that exited with a signal. */
1948 static int signal_count
;
1950 /* Name with which this program was invoked. */
1952 static const char *programname
;
1954 /* Allocate the argument vector. */
1960 argbuf
= XNEWVEC (const char *, argbuf_length
);
1963 /* Clear out the vector of arguments (after a command is executed). */
1971 /* Add one argument to the vector at the end.
1972 This is done when a space is seen or at the end of the line.
1973 If DELETE_ALWAYS is nonzero, the arg is a filename
1974 and the file should be deleted eventually.
1975 If DELETE_FAILURE is nonzero, the arg is a filename
1976 and the file should be deleted if this compilation fails. */
1979 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1981 if (argbuf_index
+ 1 == argbuf_length
)
1982 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
1984 argbuf
[argbuf_index
++] = arg
;
1985 argbuf
[argbuf_index
] = 0;
1987 if (strcmp (arg
, "-o") == 0)
1988 have_o_argbuf_index
= argbuf_index
;
1989 if (delete_always
|| delete_failure
)
1990 record_temp_file (arg
, delete_always
, delete_failure
);
1993 /* Load specs from a file name named FILENAME, replacing occurrences of
1994 various different types of line-endings, \r\n, \n\r and just \r, with
1998 load_specs (const char *filename
)
2002 struct stat statbuf
;
2009 notice ("Reading specs from %s\n", filename
);
2011 /* Open and stat the file. */
2012 desc
= open (filename
, O_RDONLY
, 0);
2014 pfatal_with_name (filename
);
2015 if (stat (filename
, &statbuf
) < 0)
2016 pfatal_with_name (filename
);
2018 /* Read contents of file into BUFFER. */
2019 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2020 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2022 pfatal_with_name (filename
);
2023 buffer
[readlen
] = 0;
2026 specs
= XNEWVEC (char, readlen
+ 1);
2028 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2034 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2036 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2050 /* Read compilation specs from a file named FILENAME,
2051 replacing the default ones.
2053 A suffix which starts with `*' is a definition for
2054 one of the machine-specific sub-specs. The "suffix" should be
2055 *asm, *cc1, *cpp, *link, *startfile, etc.
2056 The corresponding spec is stored in asm_spec, etc.,
2057 rather than in the `compilers' vector.
2059 Anything invalid in the file is a fatal error. */
2062 read_specs (const char *filename
, int main_p
)
2067 buffer
= load_specs (filename
);
2069 /* Scan BUFFER for specs, putting them in the vector. */
2075 char *in
, *out
, *p1
, *p2
, *p3
;
2077 /* Advance P in BUFFER to the next nonblank nocomment line. */
2078 p
= skip_whitespace (p
);
2082 /* Is this a special command that starts with '%'? */
2083 /* Don't allow this for the main specs file, since it would
2084 encourage people to overwrite it. */
2085 if (*p
== '%' && !main_p
)
2088 while (*p
&& *p
!= '\n')
2094 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2095 && (p1
[sizeof "%include" - 1] == ' '
2096 || p1
[sizeof "%include" - 1] == '\t'))
2100 p1
+= sizeof ("%include");
2101 while (*p1
== ' ' || *p1
== '\t')
2104 if (*p1
++ != '<' || p
[-2] != '>')
2105 fatal ("specs %%include syntax malformed after %ld characters",
2106 (long) (p1
- buffer
+ 1));
2109 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2110 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2113 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2114 && (p1
[sizeof "%include_noerr" - 1] == ' '
2115 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2119 p1
+= sizeof "%include_noerr";
2120 while (*p1
== ' ' || *p1
== '\t')
2123 if (*p1
++ != '<' || p
[-2] != '>')
2124 fatal ("specs %%include syntax malformed after %ld characters",
2125 (long) (p1
- buffer
+ 1));
2128 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2130 read_specs (new_filename
, FALSE
);
2131 else if (verbose_flag
)
2132 notice ("could not find specs file %s\n", p1
);
2135 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2136 && (p1
[sizeof "%rename" - 1] == ' '
2137 || p1
[sizeof "%rename" - 1] == '\t'))
2140 struct spec_list
*sl
;
2141 struct spec_list
*newsl
;
2143 /* Get original name. */
2144 p1
+= sizeof "%rename";
2145 while (*p1
== ' ' || *p1
== '\t')
2148 if (! ISALPHA ((unsigned char) *p1
))
2149 fatal ("specs %%rename syntax malformed after %ld characters",
2150 (long) (p1
- buffer
));
2153 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2156 if (*p2
!= ' ' && *p2
!= '\t')
2157 fatal ("specs %%rename syntax malformed after %ld characters",
2158 (long) (p2
- buffer
));
2162 while (*p2
== ' ' || *p2
== '\t')
2165 if (! ISALPHA ((unsigned char) *p2
))
2166 fatal ("specs %%rename syntax malformed after %ld characters",
2167 (long) (p2
- buffer
));
2169 /* Get new spec name. */
2171 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2175 fatal ("specs %%rename syntax malformed after %ld characters",
2176 (long) (p3
- buffer
));
2179 for (sl
= specs
; sl
; sl
= sl
->next
)
2180 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2184 fatal ("specs %s spec was not found to be renamed", p1
);
2186 if (strcmp (p1
, p2
) == 0)
2189 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2190 if (strcmp (newsl
->name
, p2
) == 0)
2191 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2196 notice ("rename spec %s to %s\n", p1
, p2
);
2198 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2202 set_spec (p2
, *(sl
->ptr_spec
));
2204 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2206 *(sl
->ptr_spec
) = "";
2211 fatal ("specs unknown %% command after %ld characters",
2212 (long) (p1
- buffer
));
2215 /* Find the colon that should end the suffix. */
2217 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2220 /* The colon shouldn't be missing. */
2222 fatal ("specs file malformed after %ld characters",
2223 (long) (p1
- buffer
));
2225 /* Skip back over trailing whitespace. */
2227 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2230 /* Copy the suffix to a string. */
2231 suffix
= save_string (p
, p2
- p
);
2232 /* Find the next line. */
2233 p
= skip_whitespace (p1
+ 1);
2235 fatal ("specs file malformed after %ld characters",
2236 (long) (p
- buffer
));
2239 /* Find next blank line or end of string. */
2240 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2243 /* Specs end at the blank line and do not include the newline. */
2244 spec
= save_string (p
, p1
- p
);
2247 /* Delete backslash-newline sequences from the spec. */
2252 if (in
[0] == '\\' && in
[1] == '\n')
2254 else if (in
[0] == '#')
2255 while (*in
&& *in
!= '\n')
2263 if (suffix
[0] == '*')
2265 if (! strcmp (suffix
, "*link_command"))
2266 link_command_spec
= spec
;
2268 set_spec (suffix
+ 1, spec
);
2272 /* Add this pair to the vector. */
2274 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2276 compilers
[n_compilers
].suffix
= suffix
;
2277 compilers
[n_compilers
].spec
= spec
;
2279 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2283 link_command_spec
= spec
;
2286 if (link_command_spec
== 0)
2287 fatal ("spec file has no spec for linking");
2290 /* Record the names of temporary files we tell compilers to write,
2291 and delete them at the end of the run. */
2293 /* This is the common prefix we use to make temp file names.
2294 It is chosen once for each run of this program.
2295 It is substituted into a spec by %g or %j.
2296 Thus, all temp file names contain this prefix.
2297 In practice, all temp file names start with this prefix.
2299 This prefix comes from the envvar TMPDIR if it is defined;
2300 otherwise, from the P_tmpdir macro if that is defined;
2301 otherwise, in /usr/tmp or /tmp;
2302 or finally the current directory if all else fails. */
2304 static const char *temp_filename
;
2306 /* Length of the prefix. */
2308 static int temp_filename_length
;
2310 /* Define the list of temporary files to delete. */
2315 struct temp_file
*next
;
2318 /* Queue of files to delete on success or failure of compilation. */
2319 static struct temp_file
*always_delete_queue
;
2320 /* Queue of files to delete on failure of compilation. */
2321 static struct temp_file
*failure_delete_queue
;
2323 /* Record FILENAME as a file to be deleted automatically.
2324 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2325 otherwise delete it in any case.
2326 FAIL_DELETE nonzero means delete it if a compilation step fails;
2327 otherwise delete it in any case. */
2330 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2332 char *const name
= xstrdup (filename
);
2336 struct temp_file
*temp
;
2337 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2338 if (! strcmp (name
, temp
->name
))
2341 temp
= XNEW (struct temp_file
);
2342 temp
->next
= always_delete_queue
;
2344 always_delete_queue
= temp
;
2351 struct temp_file
*temp
;
2352 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2353 if (! strcmp (name
, temp
->name
))
2356 temp
= XNEW (struct temp_file
);
2357 temp
->next
= failure_delete_queue
;
2359 failure_delete_queue
= temp
;
2365 /* Delete all the temporary files whose names we previously recorded. */
2367 #ifndef DELETE_IF_ORDINARY
2368 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2371 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2372 if (unlink (NAME) < 0) \
2374 perror_with_name (NAME); \
2379 delete_if_ordinary (const char *name
)
2385 printf ("Delete %s? (y or n) ", name
);
2389 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2392 if (i
== 'y' || i
== 'Y')
2394 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2398 delete_temp_files (void)
2400 struct temp_file
*temp
;
2402 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2403 delete_if_ordinary (temp
->name
);
2404 always_delete_queue
= 0;
2407 /* Delete all the files to be deleted on error. */
2410 delete_failure_queue (void)
2412 struct temp_file
*temp
;
2414 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2415 delete_if_ordinary (temp
->name
);
2419 clear_failure_queue (void)
2421 failure_delete_queue
= 0;
2424 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2426 If DO_MULTI is true iterate over the paths twice, first with multilib
2427 suffix then without, otherwise iterate over the paths once without
2428 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2429 to avoid visiting the same path twice, but we could do better. For
2430 instance, /usr/lib/../lib is considered different from /usr/lib.
2431 At least EXTRA_SPACE chars past the end of the path passed to
2432 CALLBACK are available for use by the callback.
2433 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2435 Returns the value returned by CALLBACK. */
2438 for_each_path (const struct path_prefix
*paths
,
2441 void *(*callback
) (char *, void *),
2442 void *callback_info
)
2444 struct prefix_list
*pl
;
2445 const char *multi_dir
= NULL
;
2446 const char *multi_os_dir
= NULL
;
2447 const char *multi_suffix
;
2448 const char *just_multi_suffix
;
2451 bool skip_multi_dir
= false;
2452 bool skip_multi_os_dir
= false;
2454 multi_suffix
= machine_suffix
;
2455 just_multi_suffix
= just_machine_suffix
;
2456 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2458 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2459 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2460 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2462 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2463 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2467 size_t multi_dir_len
= 0;
2468 size_t multi_os_dir_len
= 0;
2470 size_t just_suffix_len
;
2474 multi_dir_len
= strlen (multi_dir
);
2476 multi_os_dir_len
= strlen (multi_os_dir
);
2477 suffix_len
= strlen (multi_suffix
);
2478 just_suffix_len
= strlen (just_multi_suffix
);
2482 len
= paths
->max_len
+ extra_space
+ 1;
2483 if (suffix_len
> multi_os_dir_len
)
2486 len
+= multi_os_dir_len
;
2487 path
= XNEWVEC (char, len
);
2490 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2492 len
= strlen (pl
->prefix
);
2493 memcpy (path
, pl
->prefix
, len
);
2495 /* Look first in MACHINE/VERSION subdirectory. */
2496 if (!skip_multi_dir
)
2498 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2499 ret
= callback (path
, callback_info
);
2504 /* Some paths are tried with just the machine (ie. target)
2505 subdir. This is used for finding as, ld, etc. */
2507 && pl
->require_machine_suffix
== 2)
2509 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2510 ret
= callback (path
, callback_info
);
2515 /* Now try the base path. */
2516 if (!pl
->require_machine_suffix
2517 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2519 const char *this_multi
;
2520 size_t this_multi_len
;
2522 if (pl
->os_multilib
)
2524 this_multi
= multi_os_dir
;
2525 this_multi_len
= multi_os_dir_len
;
2529 this_multi
= multi_dir
;
2530 this_multi_len
= multi_dir_len
;
2534 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2538 ret
= callback (path
, callback_info
);
2546 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2549 /* Run through the paths again, this time without multilibs.
2550 Don't repeat any we have already seen. */
2553 free (CONST_CAST (char *, multi_dir
));
2555 free (CONST_CAST (char *, multi_suffix
));
2556 multi_suffix
= machine_suffix
;
2557 free (CONST_CAST (char *, just_multi_suffix
));
2558 just_multi_suffix
= just_machine_suffix
;
2561 skip_multi_dir
= true;
2564 free (CONST_CAST (char *, multi_os_dir
));
2565 multi_os_dir
= NULL
;
2568 skip_multi_os_dir
= true;
2573 free (CONST_CAST (char *, multi_dir
));
2574 free (CONST_CAST (char *, multi_suffix
));
2575 free (CONST_CAST (char *, just_multi_suffix
));
2578 free (CONST_CAST (char *, multi_os_dir
));
2584 /* Callback for build_search_list. Adds path to obstack being built. */
2586 struct add_to_obstack_info
{
2593 add_to_obstack (char *path
, void *data
)
2595 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2597 if (info
->check_dir
&& !is_directory (path
, false))
2600 if (!info
->first_time
)
2601 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2603 obstack_grow (info
->ob
, path
, strlen (path
));
2605 info
->first_time
= false;
2609 /* Add or change the value of an environment variable, outputting the
2610 change to standard error if in verbose mode. */
2612 xputenv (const char *string
)
2615 notice ("%s\n", string
);
2616 putenv (CONST_CAST (char *, string
));
2619 /* Build a list of search directories from PATHS.
2620 PREFIX is a string to prepend to the list.
2621 If CHECK_DIR_P is true we ensure the directory exists.
2622 If DO_MULTI is true, multilib paths are output first, then
2624 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2625 It is also used by the --print-search-dirs flag. */
2628 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2629 bool check_dir
, bool do_multi
)
2631 struct add_to_obstack_info info
;
2633 info
.ob
= &collect_obstack
;
2634 info
.check_dir
= check_dir
;
2635 info
.first_time
= true;
2637 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2638 obstack_1grow (&collect_obstack
, '=');
2640 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2642 obstack_1grow (&collect_obstack
, '\0');
2643 return XOBFINISH (&collect_obstack
, char *);
2646 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2650 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2653 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2656 /* Check whether NAME can be accessed in MODE. This is like access,
2657 except that it never considers directories to be executable. */
2660 access_check (const char *name
, int mode
)
2666 if (stat (name
, &st
) < 0
2667 || S_ISDIR (st
.st_mode
))
2671 return access (name
, mode
);
2674 /* Callback for find_a_file. Appends the file name to the directory
2675 path. If the resulting file exists in the right mode, return the
2676 full pathname to the file. */
2678 struct file_at_path_info
{
2687 file_at_path (char *path
, void *data
)
2689 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2690 size_t len
= strlen (path
);
2692 memcpy (path
+ len
, info
->name
, info
->name_len
);
2693 len
+= info
->name_len
;
2695 /* Some systems have a suffix for executable files.
2696 So try appending that first. */
2697 if (info
->suffix_len
)
2699 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2700 if (access_check (path
, info
->mode
) == 0)
2705 if (access_check (path
, info
->mode
) == 0)
2711 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2712 access to check permissions. If DO_MULTI is true, search multilib
2713 paths then non-multilib paths, otherwise do not search multilib paths.
2714 Return 0 if not found, otherwise return its name, allocated with malloc. */
2717 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2720 struct file_at_path_info info
;
2722 #ifdef DEFAULT_ASSEMBLER
2723 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2724 return xstrdup (DEFAULT_ASSEMBLER
);
2727 #ifdef DEFAULT_LINKER
2728 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2729 return xstrdup (DEFAULT_LINKER
);
2732 /* Determine the filename to execute (special case for absolute paths). */
2734 if (IS_ABSOLUTE_PATH (name
))
2736 if (access (name
, mode
) == 0)
2737 return xstrdup (name
);
2743 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2744 info
.name_len
= strlen (info
.name
);
2745 info
.suffix_len
= strlen (info
.suffix
);
2748 return (char*) for_each_path (pprefix
, do_multi
,
2749 info
.name_len
+ info
.suffix_len
,
2750 file_at_path
, &info
);
2753 /* Ranking of prefixes in the sort list. -B prefixes are put before
2756 enum path_prefix_priority
2758 PREFIX_PRIORITY_B_OPT
,
2759 PREFIX_PRIORITY_LAST
2762 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2763 order according to PRIORITY. Within each PRIORITY, new entries are
2766 If WARN is nonzero, we will warn if no file is found
2767 through this prefix. WARN should point to an int
2768 which will be set to 1 if this entry is used.
2770 COMPONENT is the value to be passed to update_path.
2772 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2773 the complete value of machine_suffix.
2774 2 means try both machine_suffix and just_machine_suffix. */
2777 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2778 const char *component
, /* enum prefix_priority */ int priority
,
2779 int require_machine_suffix
, int os_multilib
)
2781 struct prefix_list
*pl
, **prev
;
2784 for (prev
= &pprefix
->plist
;
2785 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2786 prev
= &(*prev
)->next
)
2789 /* Keep track of the longest prefix. */
2791 prefix
= update_path (prefix
, component
);
2792 len
= strlen (prefix
);
2793 if (len
> pprefix
->max_len
)
2794 pprefix
->max_len
= len
;
2796 pl
= XNEW (struct prefix_list
);
2797 pl
->prefix
= prefix
;
2798 pl
->require_machine_suffix
= require_machine_suffix
;
2799 pl
->priority
= priority
;
2800 pl
->os_multilib
= os_multilib
;
2802 /* Insert after PREV. */
2807 /* Same as add_prefix, but prepending target_system_root to prefix. */
2808 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2810 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2811 const char *component
,
2812 /* enum prefix_priority */ int priority
,
2813 int require_machine_suffix
, int os_multilib
)
2815 if (!IS_ABSOLUTE_PATH (prefix
))
2816 fatal ("system path '%s' is not absolute", prefix
);
2818 if (target_system_root
)
2820 if (target_sysroot_suffix
)
2821 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2822 prefix
= concat (target_system_root
, prefix
, NULL
);
2824 /* We have to override this because GCC's notion of sysroot
2825 moves along with GCC. */
2829 add_prefix (pprefix
, prefix
, component
, priority
,
2830 require_machine_suffix
, os_multilib
);
2833 /* Execute the command specified by the arguments on the current line of spec.
2834 When using pipes, this includes several piped-together commands
2835 with `|' between them.
2837 Return 0 if successful, -1 if failed. */
2843 int n_commands
; /* # of command. */
2845 struct pex_obj
*pex
;
2848 const char *prog
; /* program name. */
2849 const char **argv
; /* vector of args. */
2852 struct command
*commands
; /* each command buffer with above info. */
2854 gcc_assert (!processing_spec_function
);
2858 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2859 argbuf
[0] = (string
) ? string
: argbuf
[0];
2860 insert_wrapper (wrapper_string
);
2863 /* Count # of piped commands. */
2864 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2865 if (strcmp (argbuf
[i
], "|") == 0)
2868 /* Get storage for each command. */
2869 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2871 /* Split argbuf into its separate piped processes,
2872 and record info about each one.
2873 Also search for the programs that are to be run. */
2875 commands
[0].prog
= argbuf
[0]; /* first command. */
2876 commands
[0].argv
= &argbuf
[0];
2878 if (!wrapper_string
)
2880 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2881 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2884 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2885 if (strcmp (argbuf
[i
], "|") == 0)
2886 { /* each command. */
2887 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2888 fatal ("-pipe not supported");
2890 argbuf
[i
] = 0; /* termination of command args. */
2891 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2892 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2893 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2896 commands
[n_commands
].argv
[0] = string
;
2900 argbuf
[argbuf_index
] = 0;
2902 /* If -v, print what we are about to do, and maybe query. */
2906 /* For help listings, put a blank line between sub-processes. */
2907 if (print_help_list
)
2908 fputc ('\n', stderr
);
2910 /* Print each piped command as a separate line. */
2911 for (i
= 0; i
< n_commands
; i
++)
2913 const char *const *j
;
2915 if (verbose_only_flag
)
2917 for (j
= commands
[i
].argv
; *j
; j
++)
2920 fprintf (stderr
, " \"");
2921 for (p
= *j
; *p
; ++p
)
2923 if (*p
== '"' || *p
== '\\' || *p
== '$')
2924 fputc ('\\', stderr
);
2927 fputc ('"', stderr
);
2931 for (j
= commands
[i
].argv
; *j
; j
++)
2932 fprintf (stderr
, " %s", *j
);
2934 /* Print a pipe symbol after all but the last command. */
2935 if (i
+ 1 != n_commands
)
2936 fprintf (stderr
, " |");
2937 fprintf (stderr
, "\n");
2940 if (verbose_only_flag
!= 0)
2942 /* verbose_only_flag should act as if the spec was
2943 executed, so increment execution_count before
2944 returning. This prevents spurious warnings about
2945 unused linker input files, etc. */
2950 notice ("\nGo ahead? (y or n) ");
2954 while (getchar () != '\n')
2957 if (i
!= 'y' && i
!= 'Y')
2962 #ifdef ENABLE_VALGRIND_CHECKING
2963 /* Run the each command through valgrind. To simplify prepending the
2964 path to valgrind and the option "-q" (for quiet operation unless
2965 something triggers), we allocate a separate argv array. */
2967 for (i
= 0; i
< n_commands
; i
++)
2973 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2976 argv
= XALLOCAVEC (const char *, argc
+ 3);
2978 argv
[0] = VALGRIND_PATH
;
2980 for (j
= 2; j
< argc
+ 2; j
++)
2981 argv
[j
] = commands
[i
].argv
[j
- 2];
2984 commands
[i
].argv
= argv
;
2985 commands
[i
].prog
= argv
[0];
2989 /* Run each piped subprocess. */
2991 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2992 programname
, temp_filename
);
2994 pfatal_with_name (_("pex_init failed"));
2996 for (i
= 0; i
< n_commands
; i
++)
3000 const char *string
= commands
[i
].argv
[0];
3002 errmsg
= pex_run (pex
,
3003 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3004 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3005 string
, CONST_CAST (char **, commands
[i
].argv
),
3014 pfatal_with_name (errmsg
);
3018 if (string
!= commands
[i
].prog
)
3019 free (CONST_CAST (char *, string
));
3024 /* Wait for all the subprocesses to finish. */
3028 struct pex_time
*times
= NULL
;
3031 statuses
= (int *) alloca (n_commands
* sizeof (int));
3032 if (!pex_get_status (pex
, n_commands
, statuses
))
3033 pfatal_with_name (_("failed to get exit status"));
3037 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3038 if (!pex_get_times (pex
, n_commands
, times
))
3039 pfatal_with_name (_("failed to get process times"));
3044 for (i
= 0; i
< n_commands
; ++i
)
3046 int status
= statuses
[i
];
3048 if (WIFSIGNALED (status
))
3051 /* SIGPIPE is a special case. It happens in -pipe mode
3052 when the compiler dies before the preprocessor is done,
3053 or the assembler dies before the compiler is done.
3054 There's generally been an error already, and this is
3055 just fallout. So don't generate another error unless
3056 we would otherwise have succeeded. */
3057 if (WTERMSIG (status
) == SIGPIPE
3058 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3066 Internal error: %s (program %s)\n\
3067 Please submit a full bug report.\n\
3068 See %s for instructions.",
3069 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3072 else if (WIFEXITED (status
)
3073 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3075 if (WEXITSTATUS (status
) > greatest_status
)
3076 greatest_status
= WEXITSTATUS (status
);
3082 struct pex_time
*pt
= ×
[i
];
3085 ut
= ((double) pt
->user_seconds
3086 + (double) pt
->user_microseconds
/ 1.0e6
);
3087 st
= ((double) pt
->system_seconds
3088 + (double) pt
->system_microseconds
/ 1.0e6
);
3091 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3099 /* Find all the switches given to us
3100 and make a vector describing them.
3101 The elements of the vector are strings, one per switch given.
3102 If a switch uses following arguments, then the `part1' field
3103 is the switch itself and the `args' field
3104 is a null-terminated vector containing the following arguments.
3105 Bits in the `live_cond' field are:
3106 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3107 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3108 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3109 The `validated' field is nonzero if any spec has looked at this switch;
3110 if it remains zero at the end of the run, it must be meaningless. */
3112 #define SWITCH_LIVE 0x1
3113 #define SWITCH_FALSE 0x2
3114 #define SWITCH_IGNORE 0x4
3120 unsigned int live_cond
;
3121 unsigned char validated
;
3122 unsigned char ordering
;
3125 static struct switchstr
*switches
;
3127 static int n_switches
;
3129 /* Language is one of three things:
3131 1) The name of a real programming language.
3132 2) NULL, indicating that no one has figured out
3134 3) '*', indicating that the file should be passed
3139 const char *language
;
3140 struct compiler
*incompiler
;
3145 /* Also a vector of input files specified. */
3147 static struct infile
*infiles
;
3151 /* True if multiple input files are being compiled to a single
3154 static bool combine_inputs
;
3156 /* This counts the number of libraries added by lang_specific_driver, so that
3157 we can tell if there were any user supplied any files or libraries. */
3159 static int added_libraries
;
3161 /* And a vector of corresponding output files is made up later. */
3163 const char **outfiles
;
3165 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3167 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3168 is true if we should look for an executable suffix. DO_OBJ
3169 is true if we should look for an object suffix. */
3172 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3173 int do_obj ATTRIBUTE_UNUSED
)
3175 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3183 len
= strlen (name
);
3185 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3186 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3187 if (do_obj
&& len
> 2
3188 && name
[len
- 2] == '.'
3189 && name
[len
- 1] == 'o')
3191 obstack_grow (&obstack
, name
, len
- 2);
3192 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3193 name
= XOBFINISH (&obstack
, const char *);
3197 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3198 /* If there is no filetype, make it the executable suffix (which includes
3199 the "."). But don't get confused if we have just "-o". */
3200 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3203 for (i
= len
- 1; i
>= 0; i
--)
3204 if (IS_DIR_SEPARATOR (name
[i
]))
3207 for (i
++; i
< len
; i
++)
3211 obstack_grow (&obstack
, name
, len
);
3212 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3213 strlen (TARGET_EXECUTABLE_SUFFIX
));
3214 name
= XOBFINISH (&obstack
, const char *);
3221 /* Display the command line switches accepted by gcc. */
3225 printf (_("Usage: %s [options] file...\n"), programname
);
3226 fputs (_("Options:\n"), stdout
);
3228 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3229 fputs (_(" --help Display this information\n"), stdout
);
3230 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3231 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3232 fputs (_(" Display specific types of command line options\n"), stdout
);
3234 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3235 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3236 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3237 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3238 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3239 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3240 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3241 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3242 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3244 -print-multi-lib Display the mapping between command line options and\n\
3245 multiple library search directories\n"), stdout
);
3246 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3247 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3248 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3249 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3250 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3251 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3252 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3253 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3254 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3255 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3256 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3257 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3258 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3259 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3260 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3262 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3263 and libraries\n"), stdout
);
3264 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3265 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3266 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3267 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3268 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3269 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3270 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3271 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3272 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3274 -x <language> Specify the language of the following input files\n\
3275 Permissible languages include: c c++ assembler none\n\
3276 'none' means revert to the default behavior of\n\
3277 guessing the language based on the file's extension\n\
3281 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3282 passed on to the various sub-processes invoked by %s. In order to pass\n\
3283 other options on to these processes the -W<letter> options must be used.\n\
3286 /* The rest of the options are displayed by invocations of the various
3291 add_preprocessor_option (const char *option
, int len
)
3293 n_preprocessor_options
++;
3295 if (! preprocessor_options
)
3296 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3298 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3299 n_preprocessor_options
);
3301 preprocessor_options
[n_preprocessor_options
- 1] =
3302 save_string (option
, len
);
3306 add_assembler_option (const char *option
, int len
)
3308 n_assembler_options
++;
3310 if (! assembler_options
)
3311 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3313 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3314 n_assembler_options
);
3316 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3320 add_linker_option (const char *option
, int len
)
3324 if (! linker_options
)
3325 linker_options
= XNEWVEC (char *, n_linker_options
);
3327 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3329 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3332 /* Create the vector `switches' and its contents.
3333 Store its length in `n_switches'. */
3336 process_command (int argc
, const char **argv
)
3341 const char *spec_lang
= 0;
3342 int last_language_n_infiles
;
3343 int lang_n_infiles
= 0;
3344 #ifdef MODIFY_TARGET_NAME
3345 int is_modify_target_name
;
3348 const char *tooldir_prefix
;
3350 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3354 added_libraries
= 0;
3356 /* Figure compiler version from version string. */
3358 compiler_version
= temp1
= xstrdup (version_string
);
3360 for (; *temp1
; ++temp1
)
3369 /* If there is a -V or -b option (or both), process it now, before
3370 trying to interpret the rest of the command line.
3371 Use heuristic that all configuration names must have at least
3372 one dash '-'. This allows us to pass options starting with -b. */
3373 if (argc
> 1 && argv
[1][0] == '-'
3374 && (argv
[1][1] == 'V'
3375 || (argv
[1][1] == 'b'
3376 && (argv
[1][2] == '\0'
3377 || NULL
!= strchr (argv
[1] + 2, '-')))))
3379 const char *new_version
= DEFAULT_TARGET_VERSION
;
3380 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3381 const char *progname
= argv
[0];
3386 while (argc
> 1 && argv
[1][0] == '-'
3387 && (argv
[1][1] == 'V'
3388 || (argv
[1][1] == 'b'
3389 && (argv
[1][2] == '\0'
3390 || NULL
!= strchr (argv
[1] + 2, '-')))))
3392 char opt
= argv
[1][1];
3394 if (argv
[1][2] != '\0')
3407 fatal ("'-%c' option must have argument", opt
);
3414 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3415 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3417 new_argv0
= XDUPVAR (char, progname
, baselen
,
3418 baselen
+ concat_length (new_version
, new_machine
,
3419 "-gcc-", NULL
) + 1);
3420 strcpy (new_argv0
+ baselen
, new_machine
);
3421 strcat (new_argv0
, "-gcc-");
3422 strcat (new_argv0
, new_version
);
3424 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3425 new_argv
[0] = new_argv0
;
3427 execvp (new_argv0
, new_argv
);
3428 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3431 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3432 see if we can create it from the pathname specified in argv[0]. */
3434 gcc_libexec_prefix
= standard_libexec_prefix
;
3436 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3437 if (!gcc_exec_prefix
)
3439 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3440 standard_exec_prefix
);
3441 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3442 standard_bindir_prefix
,
3443 standard_libexec_prefix
);
3444 if (gcc_exec_prefix
)
3445 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3449 /* make_relative_prefix requires a program name, but
3450 GCC_EXEC_PREFIX is typically a directory name with a trailing
3451 / (which is ignored by make_relative_prefix), so append a
3453 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3454 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3455 standard_exec_prefix
,
3456 standard_libexec_prefix
);
3458 /* The path is unrelocated, so fallback to the original setting. */
3459 if (!gcc_libexec_prefix
)
3460 gcc_libexec_prefix
= standard_libexec_prefix
;
3466 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3467 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3468 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3470 if (gcc_exec_prefix
)
3472 int len
= strlen (gcc_exec_prefix
);
3474 if (len
> (int) sizeof ("/lib/gcc/") - 1
3475 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3477 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3478 if (IS_DIR_SEPARATOR (*temp
)
3479 && strncmp (temp
+ 1, "lib", 3) == 0
3480 && IS_DIR_SEPARATOR (temp
[4])
3481 && strncmp (temp
+ 5, "gcc", 3) == 0)
3482 len
-= sizeof ("/lib/gcc/") - 1;
3485 set_std_prefix (gcc_exec_prefix
, len
);
3486 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3487 PREFIX_PRIORITY_LAST
, 0, 0);
3488 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3489 PREFIX_PRIORITY_LAST
, 0, 0);
3492 /* COMPILER_PATH and LIBRARY_PATH have values
3493 that are lists of directory names with colons. */
3495 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3498 const char *startp
, *endp
;
3499 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3501 startp
= endp
= temp
;
3504 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3506 strncpy (nstore
, startp
, endp
- startp
);
3508 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3509 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3511 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3512 nstore
[endp
- startp
+ 1] = 0;
3515 nstore
[endp
- startp
] = 0;
3516 add_prefix (&exec_prefixes
, nstore
, 0,
3517 PREFIX_PRIORITY_LAST
, 0, 0);
3518 add_prefix (&include_prefixes
, nstore
, 0,
3519 PREFIX_PRIORITY_LAST
, 0, 0);
3522 endp
= startp
= endp
+ 1;
3529 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3530 if (temp
&& *cross_compile
== '0')
3532 const char *startp
, *endp
;
3533 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3535 startp
= endp
= temp
;
3538 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3540 strncpy (nstore
, startp
, endp
- startp
);
3542 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3543 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3545 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3546 nstore
[endp
- startp
+ 1] = 0;
3549 nstore
[endp
- startp
] = 0;
3550 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3551 PREFIX_PRIORITY_LAST
, 0, 1);
3554 endp
= startp
= endp
+ 1;
3561 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3562 GET_ENVIRONMENT (temp
, "LPATH");
3563 if (temp
&& *cross_compile
== '0')
3565 const char *startp
, *endp
;
3566 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3568 startp
= endp
= temp
;
3571 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3573 strncpy (nstore
, startp
, endp
- startp
);
3575 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3576 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3578 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3579 nstore
[endp
- startp
+ 1] = 0;
3582 nstore
[endp
- startp
] = 0;
3583 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3584 PREFIX_PRIORITY_LAST
, 0, 1);
3587 endp
= startp
= endp
+ 1;
3594 /* Convert new-style -- options to old-style. */
3595 translate_options (&argc
, (const char *const **) &argv
);
3597 /* Do language-specific adjustment/addition of flags. */
3598 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3600 /* Scan argv twice. Here, the first time, just count how many switches
3601 there will be in their vector, and how many input files in theirs.
3602 Here we also parse the switches that cc itself uses (e.g. -v). */
3604 for (i
= 1; i
< argc
; i
++)
3606 if (! strcmp (argv
[i
], "-dumpspecs"))
3608 struct spec_list
*sl
;
3610 for (sl
= specs
; sl
; sl
= sl
->next
)
3611 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3612 if (link_command_spec
)
3613 printf ("*link_command:\n%s\n\n", link_command_spec
);
3616 else if (! strcmp (argv
[i
], "-dumpversion"))
3618 printf ("%s\n", spec_version
);
3621 else if (! strcmp (argv
[i
], "-dumpmachine"))
3623 printf ("%s\n", spec_machine
);
3626 else if (strcmp (argv
[i
], "-fversion") == 0)
3628 /* translate_options () has turned --version into -fversion. */
3629 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
3631 printf ("Copyright %s 2008 Free Software Foundation, Inc.\n",
3633 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3634 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3638 else if (strcmp (argv
[i
], "-fhelp") == 0)
3640 /* translate_options () has turned --help into -fhelp. */
3641 print_help_list
= 1;
3643 /* We will be passing a dummy file on to the sub-processes. */
3647 /* CPP driver cannot obtain switch from cc1_options. */
3649 add_preprocessor_option ("--help", 6);
3650 add_assembler_option ("--help", 6);
3651 add_linker_option ("--help", 6);
3653 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3655 /* translate_options () has turned --help into -fhelp. */
3656 print_subprocess_help
= 2;
3658 /* We will be passing a dummy file on to the sub-processes. */
3662 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3664 /* translate_options() has turned --target-help into -ftarget-help. */
3665 print_subprocess_help
= 1;
3667 /* We will be passing a dummy file on to the sub-processes. */
3671 /* CPP driver cannot obtain switch from cc1_options. */
3673 add_preprocessor_option ("--target-help", 13);
3674 add_assembler_option ("--target-help", 13);
3675 add_linker_option ("--target-help", 13);
3677 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3679 pass_exit_codes
= 1;
3682 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3683 print_search_dirs
= 1;
3684 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3685 print_file_name
= "libgcc.a";
3686 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3687 print_file_name
= argv
[i
] + 17;
3688 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3689 print_prog_name
= argv
[i
] + 17;
3690 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3691 print_multi_lib
= 1;
3692 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3693 print_multi_directory
= 1;
3694 else if (! strcmp (argv
[i
], "-print-sysroot"))
3696 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3697 print_multi_os_directory
= 1;
3698 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3699 print_sysroot_headers_suffix
= 1;
3700 else if (! strncmp (argv
[i
], "-Wa,", 4))
3703 /* Pass the rest of this option to the assembler. */
3705 /* Split the argument at commas. */
3707 for (j
= 4; argv
[i
][j
]; j
++)
3708 if (argv
[i
][j
] == ',')
3710 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3714 /* Record the part after the last comma. */
3715 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3717 else if (! strncmp (argv
[i
], "-Wp,", 4))
3720 /* Pass the rest of this option to the preprocessor. */
3722 /* Split the argument at commas. */
3724 for (j
= 4; argv
[i
][j
]; j
++)
3725 if (argv
[i
][j
] == ',')
3727 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3731 /* Record the part after the last comma. */
3732 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3734 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3735 /* The +e options to the C++ front-end. */
3737 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3740 /* Split the argument at commas. */
3741 for (j
= 3; argv
[i
][j
]; j
++)
3742 n_infiles
+= (argv
[i
][j
] == ',');
3744 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3747 fatal ("argument to '-Xlinker' is missing");
3752 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3755 fatal ("argument to '-Xpreprocessor' is missing");
3757 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3759 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3762 fatal ("argument to '-Xassembler' is missing");
3764 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3766 else if (strcmp (argv
[i
], "-l") == 0)
3769 fatal ("argument to '-l' is missing");
3774 else if (strncmp (argv
[i
], "-l", 2) == 0)
3776 else if (strcmp (argv
[i
], "-save-temps") == 0)
3778 save_temps_flag
= 1;
3781 else if (strcmp (argv
[i
], "-combine") == 0)
3786 else if (strcmp (argv
[i
], "-specs") == 0)
3788 struct user_specs
*user
= XNEW (struct user_specs
);
3790 fatal ("argument to '-specs' is missing");
3792 user
->next
= (struct user_specs
*) 0;
3793 user
->filename
= argv
[i
];
3794 if (user_specs_tail
)
3795 user_specs_tail
->next
= user
;
3797 user_specs_head
= user
;
3798 user_specs_tail
= user
;
3800 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3802 struct user_specs
*user
= XNEW (struct user_specs
);
3803 if (strlen (argv
[i
]) == 7)
3804 fatal ("argument to '-specs=' is missing");
3806 user
->next
= (struct user_specs
*) 0;
3807 user
->filename
= argv
[i
] + 7;
3808 if (user_specs_tail
)
3809 user_specs_tail
->next
= user
;
3811 user_specs_head
= user
;
3812 user_specs_tail
= user
;
3814 else if (strcmp (argv
[i
], "-time") == 0)
3816 else if (strcmp (argv
[i
], "-pipe") == 0)
3818 /* -pipe has to go into the switches array as well as
3823 else if (strcmp (argv
[i
], "-wrapper") == 0)
3826 fatal ("argument to '-wrapper' is missing");
3828 wrapper_string
= argv
[i
];
3832 else if (strcmp (argv
[i
], "-###") == 0)
3834 /* This is similar to -v except that there is no execution
3835 of the commands and the echoed arguments are quoted. It
3836 is intended for use in shell scripts to capture the
3837 driver-generated command line. */
3838 verbose_only_flag
++;
3841 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3843 const char *p
= &argv
[i
][1];
3849 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
3854 fatal ("'-%c' must come at the start of the command line", c
);
3862 if (p
[1] == 0 && i
+ 1 == argc
)
3863 fatal ("argument to '-B' is missing");
3869 len
= strlen (value
);
3871 /* Catch the case where the user has forgotten to append a
3872 directory separator to the path. Note, they may be using
3873 -B to add an executable name prefix, eg "i386-elf-", in
3874 order to distinguish between multiple installations of
3875 GCC in the same directory. Hence we must check to see
3876 if appending a directory separator actually makes a
3877 valid directory name. */
3878 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3879 && is_directory (value
, false))
3881 char *tmp
= XNEWVEC (char, len
+ 2);
3882 strcpy (tmp
, value
);
3883 tmp
[len
] = DIR_SEPARATOR
;
3888 add_prefix (&exec_prefixes
, value
, NULL
,
3889 PREFIX_PRIORITY_B_OPT
, 0, 0);
3890 add_prefix (&startfile_prefixes
, value
, NULL
,
3891 PREFIX_PRIORITY_B_OPT
, 0, 0);
3892 add_prefix (&include_prefixes
, value
, NULL
,
3893 PREFIX_PRIORITY_B_OPT
, 0, 0);
3898 case 'v': /* Print our subcommands and print versions. */
3900 /* If they do anything other than exactly `-v', don't set
3901 verbose_flag; rather, continue on to give the error. */
3919 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3924 /* Forward scan, just in case -S or -c is specified
3931 if (argv
[j
][0] == '-')
3933 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3939 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3940 j
+= skip
- (argv
[j
][2] != 0);
3941 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3948 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3950 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3952 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3959 #ifdef MODIFY_TARGET_NAME
3960 is_modify_target_name
= 0;
3962 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3963 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3965 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
3966 + strlen (spec_machine
));
3969 int made_addition
= 0;
3971 is_modify_target_name
= 1;
3972 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3974 if (modify_target
[j
].add_del
== DELETE
3975 && (! strncmp (q
, modify_target
[j
].str
,
3976 strlen (modify_target
[j
].str
))))
3977 p
+= strlen (modify_target
[j
].str
);
3978 else if (modify_target
[j
].add_del
== ADD
3979 && ! made_addition
&& *p
== '-')
3981 for (r
= modify_target
[j
].str
; *r
!= 0; )
3989 spec_machine
= new_name
;
3992 if (is_modify_target_name
)
3998 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3999 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4000 else if (WORD_SWITCH_TAKES_ARG (p
))
4001 i
+= WORD_SWITCH_TAKES_ARG (p
);
4011 if (save_temps_flag
&& use_pipes
)
4013 /* -save-temps overrides -pipe, so that temp files are produced */
4014 if (save_temps_flag
)
4015 error ("warning: -pipe ignored because -save-temps specified");
4019 /* Set up the search paths. We add directories that we expect to
4020 contain GNU Toolchain components before directories specified by
4021 the machine description so that we will find GNU components (like
4022 the GNU assembler) before those of the host system. */
4024 /* If we don't know where the toolchain has been installed, use the
4025 configured-in locations. */
4026 if (!gcc_exec_prefix
)
4029 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4030 PREFIX_PRIORITY_LAST
, 1, 0);
4031 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4032 PREFIX_PRIORITY_LAST
, 2, 0);
4033 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4034 PREFIX_PRIORITY_LAST
, 2, 0);
4036 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4037 PREFIX_PRIORITY_LAST
, 1, 0);
4040 /* If not cross-compiling, search well-known system locations. */
4041 if (*cross_compile
== '0')
4044 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
4045 PREFIX_PRIORITY_LAST
, 2, 0);
4046 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4047 PREFIX_PRIORITY_LAST
, 2, 0);
4049 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4050 PREFIX_PRIORITY_LAST
, 1, 0);
4053 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4054 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4055 dir_separator_str
, NULL
);
4057 /* Look for tools relative to the location from which the driver is
4058 running, or, if that is not available, the configured prefix. */
4060 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4061 spec_machine
, dir_separator_str
,
4062 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4064 add_prefix (&exec_prefixes
,
4065 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4066 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4067 add_prefix (&startfile_prefixes
,
4068 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4069 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4071 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4072 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4073 then consider it to relocate with the rest of the GCC installation
4074 if GCC_EXEC_PREFIX is set.
4075 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4076 if (target_system_root
&& gcc_exec_prefix
)
4078 char *tmp_prefix
= make_relative_prefix (argv
[0],
4079 standard_bindir_prefix
,
4080 target_system_root
);
4081 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4083 target_system_root
= tmp_prefix
;
4084 target_system_root_changed
= 1;
4089 /* More prefixes are enabled in main, after we read the specs file
4090 and determine whether this is cross-compilation or not. */
4092 /* Then create the space for the vectors and scan again. */
4094 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4095 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4098 last_language_n_infiles
= -1;
4100 /* This, time, copy the text of each switch and store a pointer
4101 to the copy in the vector of switches.
4102 Store all the infiles in their vector. */
4104 for (i
= 1; i
< argc
; i
++)
4106 /* Just skip the switches that were handled by the preceding loop. */
4107 #ifdef MODIFY_TARGET_NAME
4108 is_modify_target_name
= 0;
4110 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4111 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4112 is_modify_target_name
= 1;
4114 if (is_modify_target_name
)
4118 if (! strncmp (argv
[i
], "-Wa,", 4))
4120 else if (! strncmp (argv
[i
], "-Wp,", 4))
4122 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4124 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4126 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4128 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4130 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4132 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4134 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4136 else if (! strcmp (argv
[i
], "-print-sysroot"))
4138 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4140 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4142 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4144 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4145 target_system_root_changed
= 1;
4147 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4149 /* Compensate for the +e options to the C++ front-end;
4150 they're there simply for cfront call-compatibility. We do
4151 some magic in default_compilers to pass them down properly.
4152 Note we deliberately start at the `+' here, to avoid passing
4153 -e0 or -e1 down into the linker. */
4154 switches
[n_switches
].part1
= &argv
[i
][0];
4155 switches
[n_switches
].args
= 0;
4156 switches
[n_switches
].live_cond
= 0;
4157 switches
[n_switches
].validated
= 0;
4160 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4163 /* Split the argument at commas. */
4165 for (j
= 4; argv
[i
][j
]; j
++)
4166 if (argv
[i
][j
] == ',')
4168 infiles
[n_infiles
].language
= "*";
4169 infiles
[n_infiles
++].name
4170 = save_string (argv
[i
] + prev
, j
- prev
);
4173 /* Record the part after the last comma. */
4174 infiles
[n_infiles
].language
= "*";
4175 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4177 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4179 infiles
[n_infiles
].language
= "*";
4180 infiles
[n_infiles
++].name
= argv
[++i
];
4182 /* Xassembler and Xpreprocessor were already handled in the first argv
4183 scan, so all we need to do here is ignore them and their argument. */
4184 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4186 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4188 else if (strcmp (argv
[i
], "-l") == 0)
4189 { /* POSIX allows separation of -l and the lib arg;
4190 canonicalize by concatenating -l with its arg */
4191 infiles
[n_infiles
].language
= "*";
4192 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4194 else if (strncmp (argv
[i
], "-l", 2) == 0)
4196 infiles
[n_infiles
].language
= "*";
4197 infiles
[n_infiles
++].name
= argv
[i
];
4199 else if (strcmp (argv
[i
], "-wrapper") == 0)
4201 else if (strcmp (argv
[i
], "-specs") == 0)
4203 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4205 else if (strcmp (argv
[i
], "-time") == 0)
4207 else if (strcmp (argv
[i
], "-###") == 0)
4209 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4211 const char *p
= &argv
[i
][1];
4216 if (p
[1] == 0 && i
+ 1 == argc
)
4217 fatal ("argument to '-x' is missing");
4219 spec_lang
= argv
[++i
];
4222 if (! strcmp (spec_lang
, "none"))
4223 /* Suppress the warning if -xnone comes after the last input
4224 file, because alternate command interfaces like g++ might
4225 find it useful to place -xnone after each input file. */
4228 last_language_n_infiles
= n_infiles
;
4231 switches
[n_switches
].part1
= p
;
4232 /* Deal with option arguments in separate argv elements. */
4233 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4234 || WORD_SWITCH_TAKES_ARG (p
))
4237 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4241 /* Count only the option arguments in separate argv elements. */
4242 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4244 if (i
+ n_args
>= argc
)
4245 fatal ("argument to '-%s' is missing", p
);
4246 switches
[n_switches
].args
4247 = XNEWVEC (const char *, n_args
+ 1);
4249 switches
[n_switches
].args
[j
++] = argv
[++i
];
4250 /* Null-terminate the vector. */
4251 switches
[n_switches
].args
[j
] = 0;
4253 else if (strchr (switches_need_spaces
, c
))
4255 /* On some systems, ld cannot handle some options without
4256 a space. So split the option from its argument. */
4257 char *part1
= XNEWVEC (char, 2);
4261 switches
[n_switches
].part1
= part1
;
4262 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4263 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4264 switches
[n_switches
].args
[1] = 0;
4267 switches
[n_switches
].args
= 0;
4269 switches
[n_switches
].live_cond
= 0;
4270 switches
[n_switches
].validated
= 0;
4271 switches
[n_switches
].ordering
= 0;
4272 /* These are always valid, since gcc.c itself understands the
4273 first four and gfortranspec.c understands -static-libgfortran. */
4274 if (!strcmp (p
, "save-temps")
4275 || !strcmp (p
, "static-libgcc")
4276 || !strcmp (p
, "shared-libgcc")
4277 || !strcmp (p
, "pipe")
4278 || !strcmp (p
, "static-libgfortran"))
4279 switches
[n_switches
].validated
= 1;
4282 char ch
= switches
[n_switches
].part1
[0];
4284 switches
[n_switches
].validated
= 1;
4290 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4291 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4294 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4296 perror_with_name (argv
[i
]);
4301 infiles
[n_infiles
].language
= spec_lang
;
4302 infiles
[n_infiles
++].name
= argv
[i
];
4307 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4308 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4310 /* Ensure we only invoke each subprocess once. */
4311 if (print_subprocess_help
|| print_help_list
)
4315 /* Create a dummy input file, so that we can pass
4316 the help option on to the various sub-processes. */
4317 infiles
[0].language
= "c";
4318 infiles
[0].name
= "help-dummy";
4321 switches
[n_switches
].part1
= 0;
4322 infiles
[n_infiles
].name
= 0;
4325 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4326 and place that in the environment. */
4329 set_collect_gcc_options (void)
4334 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4336 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4337 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4340 for (i
= 0; (int) i
< n_switches
; i
++)
4342 const char *const *args
;
4345 obstack_grow (&collect_obstack
, " ", 1);
4349 /* Ignore elided switches. */
4350 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4353 obstack_grow (&collect_obstack
, "'-", 2);
4354 q
= switches
[i
].part1
;
4355 while ((p
= strchr (q
, '\'')))
4357 obstack_grow (&collect_obstack
, q
, p
- q
);
4358 obstack_grow (&collect_obstack
, "'\\''", 4);
4361 obstack_grow (&collect_obstack
, q
, strlen (q
));
4362 obstack_grow (&collect_obstack
, "'", 1);
4364 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4366 obstack_grow (&collect_obstack
, " '", 2);
4368 while ((p
= strchr (q
, '\'')))
4370 obstack_grow (&collect_obstack
, q
, p
- q
);
4371 obstack_grow (&collect_obstack
, "'\\''", 4);
4374 obstack_grow (&collect_obstack
, q
, strlen (q
));
4375 obstack_grow (&collect_obstack
, "'", 1);
4378 obstack_grow (&collect_obstack
, "\0", 1);
4379 xputenv (XOBFINISH (&collect_obstack
, char *));
4382 /* Process a spec string, accumulating and running commands. */
4384 /* These variables describe the input file name.
4385 input_file_number is the index on outfiles of this file,
4386 so that the output file name can be stored for later use by %o.
4387 input_basename is the start of the part of the input file
4388 sans all directory names, and basename_length is the number
4389 of characters starting there excluding the suffix .c or whatever. */
4391 static const char *input_filename
;
4392 static int input_file_number
;
4393 size_t input_filename_length
;
4394 static int basename_length
;
4395 static int suffixed_basename_length
;
4396 static const char *input_basename
;
4397 static const char *input_suffix
;
4398 #ifndef HOST_LACKS_INODE_NUMBERS
4399 static struct stat input_stat
;
4401 static int input_stat_set
;
4403 /* The compiler used to process the current input file. */
4404 static struct compiler
*input_file_compiler
;
4406 /* These are variables used within do_spec and do_spec_1. */
4408 /* Nonzero if an arg has been started and not yet terminated
4409 (with space, tab or newline). */
4410 static int arg_going
;
4412 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4413 is a temporary file name. */
4414 static int delete_this_arg
;
4416 /* Nonzero means %w has been seen; the next arg to be terminated
4417 is the output file name of this compilation. */
4418 static int this_is_output_file
;
4420 /* Nonzero means %s has been seen; the next arg to be terminated
4421 is the name of a library file and we should try the standard
4422 search dirs for it. */
4423 static int this_is_library_file
;
4425 /* Nonzero means that the input of this command is coming from a pipe. */
4426 static int input_from_pipe
;
4428 /* Nonnull means substitute this for any suffix when outputting a switches
4430 static const char *suffix_subst
;
4432 /* If there is an argument being accumulated, terminate it and store it. */
4435 end_going_arg (void)
4441 obstack_1grow (&obstack
, 0);
4442 string
= XOBFINISH (&obstack
, const char *);
4443 if (this_is_library_file
)
4444 string
= find_file (string
);
4445 store_arg (string
, delete_this_arg
, this_is_output_file
);
4446 if (this_is_output_file
)
4447 outfiles
[input_file_number
] = string
;
4453 /* Parse the WRAPPER string which is a comma separated list of the command line
4454 and insert them into the beginning of argbuf. */
4457 insert_wrapper (const char *wrapper
)
4461 char *buf
= xstrdup (wrapper
);
4470 while ((p
= strchr (p
, ',')) != NULL
);
4472 if (argbuf_index
+ n
>= argbuf_length
)
4474 argbuf_length
= argbuf_length
* 2;
4475 while (argbuf_length
< argbuf_index
+ n
)
4477 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4479 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4480 argbuf
[i
+ n
] = argbuf
[i
];
4493 while ((p
= strchr (p
, ',')) != NULL
);
4494 gcc_assert (i
== n
);
4498 /* Process the spec SPEC and run the commands specified therein.
4499 Returns 0 if the spec is successfully processed; -1 if failed. */
4502 do_spec (const char *spec
)
4506 value
= do_spec_2 (spec
);
4508 /* Force out any unfinished command.
4509 If -pipe, this forces out the last command if it ended in `|'. */
4512 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4515 set_collect_gcc_options ();
4517 if (argbuf_index
> 0)
4525 do_spec_2 (const char *spec
)
4531 delete_this_arg
= 0;
4532 this_is_output_file
= 0;
4533 this_is_library_file
= 0;
4534 input_from_pipe
= 0;
4535 suffix_subst
= NULL
;
4537 result
= do_spec_1 (spec
, 0, NULL
);
4545 /* Process the given spec string and add any new options to the end
4546 of the switches/n_switches array. */
4549 do_option_spec (const char *name
, const char *spec
)
4551 unsigned int i
, value_count
, value_len
;
4552 const char *p
, *q
, *value
;
4553 char *tmp_spec
, *tmp_spec_p
;
4555 if (configure_default_options
[0].name
== NULL
)
4558 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4559 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4561 if (i
== ARRAY_SIZE (configure_default_options
))
4564 value
= configure_default_options
[i
].value
;
4565 value_len
= strlen (value
);
4567 /* Compute the size of the final spec. */
4570 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4576 /* Replace each %(VALUE) by the specified value. */
4577 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4578 + value_count
* (value_len
- strlen ("%(VALUE)")));
4579 tmp_spec_p
= tmp_spec
;
4581 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4583 memcpy (tmp_spec_p
, q
, p
- q
);
4584 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4585 memcpy (tmp_spec_p
, value
, value_len
);
4586 tmp_spec_p
+= value_len
;
4587 q
= p
+ strlen ("%(VALUE)");
4589 strcpy (tmp_spec_p
, q
);
4591 do_self_spec (tmp_spec
);
4594 /* Process the given spec string and add any new options to the end
4595 of the switches/n_switches array. */
4598 do_self_spec (const char *spec
)
4601 do_spec_1 (" ", 0, NULL
);
4603 if (argbuf_index
> 0)
4608 n_switches
+= argbuf_index
;
4609 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches
+ 1);
4611 switches
[n_switches
] = switches
[first
];
4612 for (i
= 0; i
< argbuf_index
; i
++)
4614 struct switchstr
*sw
;
4616 /* Each switch should start with '-'. */
4617 if (argbuf
[i
][0] != '-')
4618 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4620 sw
= &switches
[i
+ first
];
4621 sw
->part1
= &argbuf
[i
][1];
4630 /* Callback for processing %D and %I specs. */
4632 struct spec_path_info
{
4637 bool separate_options
;
4641 spec_path (char *path
, void *data
)
4643 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4647 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4650 if (info
->append_len
!= 0)
4652 len
= strlen (path
);
4653 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4656 if (!is_directory (path
, true))
4659 do_spec_1 (info
->option
, 1, NULL
);
4660 if (info
->separate_options
)
4661 do_spec_1 (" ", 0, NULL
);
4663 if (info
->append_len
== 0)
4665 len
= strlen (path
);
4666 save
= path
[len
- 1];
4667 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4668 path
[len
- 1] = '\0';
4671 do_spec_1 (path
, 1, NULL
);
4672 do_spec_1 (" ", 0, NULL
);
4674 /* Must not damage the original path. */
4675 if (info
->append_len
== 0)
4676 path
[len
- 1] = save
;
4681 /* Process the sub-spec SPEC as a portion of a larger spec.
4682 This is like processing a whole spec except that we do
4683 not initialize at the beginning and we do not supply a
4684 newline by default at the end.
4685 INSWITCH nonzero means don't process %-sequences in SPEC;
4686 in this case, % is treated as an ordinary character.
4687 This is used while substituting switches.
4688 INSWITCH nonzero also causes SPC not to terminate an argument.
4690 Value is zero unless a line was finished
4691 and the command on that line reported an error. */
4694 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4696 const char *p
= spec
;
4702 /* If substituting a switch, treat all chars like letters.
4703 Otherwise, NL, SPC, TAB and % are special. */
4704 switch (inswitch
? 'a' : c
)
4709 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4711 /* A `|' before the newline means use a pipe here,
4712 but only if -pipe was specified.
4713 Otherwise, execute now and don't pass the `|' as an arg. */
4716 input_from_pipe
= 1;
4723 set_collect_gcc_options ();
4725 if (argbuf_index
> 0)
4731 /* Reinitialize for a new command, and for a new argument. */
4734 delete_this_arg
= 0;
4735 this_is_output_file
= 0;
4736 this_is_library_file
= 0;
4737 input_from_pipe
= 0;
4744 obstack_1grow (&obstack
, c
);
4752 /* Reinitialize for a new argument. */
4753 delete_this_arg
= 0;
4754 this_is_output_file
= 0;
4755 this_is_library_file
= 0;
4762 fatal ("spec '%s' invalid", spec
);
4765 obstack_grow (&obstack
, input_basename
, basename_length
);
4770 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4775 delete_this_arg
= 2;
4778 /* Dump out the directories specified with LIBRARY_PATH,
4779 followed by the absolute directories
4780 that we search for startfiles. */
4783 struct spec_path_info info
;
4786 info
.append_len
= 0;
4787 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4788 /* Used on systems which record the specified -L dirs
4789 and use them to search for dynamic linking.
4790 Relative directories always come from -B,
4791 and it is better not to use them for searching
4792 at run time. In particular, stage1 loses. */
4793 info
.omit_relative
= true;
4795 info
.omit_relative
= false;
4797 info
.separate_options
= false;
4799 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4804 /* %efoo means report an error with `foo' as error message
4805 and don't execute any more commands for this file. */
4809 while (*p
!= 0 && *p
!= '\n')
4811 buf
= (char *) alloca (p
- q
+ 1);
4812 strncpy (buf
, q
, p
- q
);
4819 /* %nfoo means report a notice with `foo' on stderr. */
4823 while (*p
!= 0 && *p
!= '\n')
4825 buf
= (char *) alloca (p
- q
+ 1);
4826 strncpy (buf
, q
, p
- q
);
4828 notice ("%s\n", buf
);
4838 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4839 defined, and it is not a directory, and it is
4840 writable, use it. Otherwise, treat this like any
4841 other temporary file. */
4843 if ((!save_temps_flag
)
4844 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4845 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4847 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4848 strlen (HOST_BIT_BUCKET
));
4849 delete_this_arg
= 0;
4854 goto create_temp_file
;
4858 obstack_1grow (&obstack
, '-');
4859 delete_this_arg
= 0;
4862 /* consume suffix */
4863 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4865 if (p
[0] == '%' && p
[1] == 'O')
4870 goto create_temp_file
;
4874 /* consume suffix */
4875 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4877 if (p
[0] == '%' && p
[1] == 'O')
4882 goto create_temp_file
;
4888 struct temp_name
*t
;
4890 const char *suffix
= p
;
4891 char *saved_suffix
= NULL
;
4893 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4895 suffix_length
= p
- suffix
;
4896 if (p
[0] == '%' && p
[1] == 'O')
4899 /* We don't support extra suffix characters after %O. */
4900 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4901 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4902 if (suffix_length
== 0)
4903 suffix
= TARGET_OBJECT_SUFFIX
;
4907 = XNEWVEC (char, suffix_length
4908 + strlen (TARGET_OBJECT_SUFFIX
));
4909 strncpy (saved_suffix
, suffix
, suffix_length
);
4910 strcpy (saved_suffix
+ suffix_length
,
4911 TARGET_OBJECT_SUFFIX
);
4913 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4916 /* If the input_filename has the same suffix specified
4917 for the %g, %u, or %U, and -save-temps is specified,
4918 we could end up using that file as an intermediate
4919 thus clobbering the user's source file (.e.g.,
4920 gcc -save-temps foo.s would clobber foo.s with the
4921 output of cpp0). So check for this condition and
4922 generate a temp file as the intermediate. */
4924 if (save_temps_flag
)
4928 temp_filename_length
= basename_length
+ suffix_length
;
4929 tmp
= (char *) alloca (temp_filename_length
+ 1);
4930 strncpy (tmp
, input_basename
, basename_length
);
4931 strncpy (tmp
+ basename_length
, suffix
, suffix_length
);
4932 tmp
[temp_filename_length
] = '\0';
4933 temp_filename
= tmp
;
4934 if (strcmp (temp_filename
, input_filename
) != 0)
4936 #ifndef HOST_LACKS_INODE_NUMBERS
4937 struct stat st_temp
;
4939 /* Note, set_input() resets input_stat_set to 0. */
4940 if (input_stat_set
== 0)
4942 input_stat_set
= stat (input_filename
, &input_stat
);
4943 if (input_stat_set
>= 0)
4947 /* If we have the stat for the input_filename
4948 and we can do the stat for the temp_filename
4949 then the they could still refer to the same
4950 file if st_dev/st_ino's are the same. */
4951 if (input_stat_set
!= 1
4952 || stat (temp_filename
, &st_temp
) < 0
4953 || input_stat
.st_dev
!= st_temp
.st_dev
4954 || input_stat
.st_ino
!= st_temp
.st_ino
)
4956 /* Just compare canonical pathnames. */
4957 char* input_realname
= lrealpath (input_filename
);
4958 char* temp_realname
= lrealpath (temp_filename
);
4959 bool files_differ
= strcmp (input_realname
, temp_realname
);
4960 free (input_realname
);
4961 free (temp_realname
);
4965 temp_filename
= save_string (temp_filename
,
4966 temp_filename_length
+ 1);
4967 obstack_grow (&obstack
, temp_filename
,
4968 temp_filename_length
);
4970 delete_this_arg
= 0;
4976 /* See if we already have an association of %g/%u/%U and
4978 for (t
= temp_names
; t
; t
= t
->next
)
4979 if (t
->length
== suffix_length
4980 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4981 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4984 /* Make a new association if needed. %u and %j
4986 if (t
== 0 || c
== 'u' || c
== 'j')
4990 t
= XNEW (struct temp_name
);
4991 t
->next
= temp_names
;
4994 t
->length
= suffix_length
;
4997 t
->suffix
= saved_suffix
;
4998 saved_suffix
= NULL
;
5001 t
->suffix
= save_string (suffix
, suffix_length
);
5002 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5003 temp_filename
= make_temp_file (t
->suffix
);
5004 temp_filename_length
= strlen (temp_filename
);
5005 t
->filename
= temp_filename
;
5006 t
->filename_length
= temp_filename_length
;
5010 free (saved_suffix
);
5012 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5013 delete_this_arg
= 1;
5021 for (i
= 0; (int) i
< n_infiles
; i
++)
5022 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
5023 if (infiles
[i
].incompiler
== input_file_compiler
)
5025 store_arg (infiles
[i
].name
, 0, 0);
5026 infiles
[i
].compiled
= true;
5031 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5038 struct spec_path_info info
;
5042 do_spec_1 ("-imultilib", 1, NULL
);
5043 /* Make this a separate argument. */
5044 do_spec_1 (" ", 0, NULL
);
5045 do_spec_1 (multilib_dir
, 1, NULL
);
5046 do_spec_1 (" ", 0, NULL
);
5049 if (gcc_exec_prefix
)
5051 do_spec_1 ("-iprefix", 1, NULL
);
5052 /* Make this a separate argument. */
5053 do_spec_1 (" ", 0, NULL
);
5054 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5055 do_spec_1 (" ", 0, NULL
);
5058 if (target_system_root_changed
||
5059 (target_system_root
&& target_sysroot_hdrs_suffix
))
5061 do_spec_1 ("-isysroot", 1, NULL
);
5062 /* Make this a separate argument. */
5063 do_spec_1 (" ", 0, NULL
);
5064 do_spec_1 (target_system_root
, 1, NULL
);
5065 if (target_sysroot_hdrs_suffix
)
5066 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5067 do_spec_1 (" ", 0, NULL
);
5070 info
.option
= "-isystem";
5071 info
.append
= "include";
5072 info
.append_len
= strlen (info
.append
);
5073 info
.omit_relative
= false;
5074 info
.separate_options
= true;
5076 for_each_path (&include_prefixes
, false, info
.append_len
,
5079 info
.append
= "include-fixed";
5080 if (*sysroot_hdrs_suffix_spec
)
5081 info
.append
= concat (info
.append
, dir_separator_str
,
5082 multilib_dir
, NULL
);
5083 info
.append_len
= strlen (info
.append
);
5084 for_each_path (&include_prefixes
, false, info
.append_len
,
5091 int max
= n_infiles
;
5092 max
+= lang_specific_extra_outfiles
;
5094 if (HAVE_GNU_LD
&& at_file_supplied
)
5096 /* We are going to expand `%o' to `@FILE', where FILE
5097 is a newly-created temporary filename. The filenames
5098 that would usually be expanded in place of %o will be
5099 written to the temporary file. */
5101 char *temp_file
= make_temp_file ("");
5104 int n_files
, j
, status
;
5107 at_argument
= concat ("@", temp_file
, NULL
);
5108 store_arg (at_argument
, 0, 0);
5110 /* Convert OUTFILES into a form suitable for writeargv. */
5112 /* Determine how many are non-NULL. */
5113 for (n_files
= 0, i
= 0; i
< max
; i
++)
5114 n_files
+= outfiles
[i
] != NULL
;
5116 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5118 /* Copy the strings over. */
5119 for (i
= 0, j
= 0; i
< max
; i
++)
5122 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5127 f
= fopen (temp_file
, "w");
5130 fatal ("could not open temporary response file %s",
5133 status
= writeargv (argv
, f
);
5136 fatal ("could not write to temporary response file %s",
5139 status
= fclose (f
);
5142 fatal ("could not close temporary response file %s",
5145 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5148 for (i
= 0; i
< max
; i
++)
5150 store_arg (outfiles
[i
], 0, 0);
5155 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5160 this_is_library_file
= 1;
5164 outfiles
[input_file_number
] = NULL
;
5168 this_is_output_file
= 1;
5173 int cur_index
= argbuf_index
;
5174 /* Handle the {...} following the %W. */
5176 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5177 p
= handle_braces (p
+ 1);
5181 /* If any args were output, mark the last one for deletion
5183 if (argbuf_index
!= cur_index
)
5184 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5188 /* %x{OPTION} records OPTION for %X to output. */
5194 /* Skip past the option value and make a copy. */
5196 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5199 string
= save_string (p1
+ 1, p
- p1
- 2);
5201 /* See if we already recorded this option. */
5202 for (i
= 0; i
< n_linker_options
; i
++)
5203 if (! strcmp (string
, linker_options
[i
]))
5209 /* This option is new; add it. */
5210 add_linker_option (string
, strlen (string
));
5214 /* Dump out the options accumulated previously using %x. */
5216 for (i
= 0; i
< n_linker_options
; i
++)
5218 do_spec_1 (linker_options
[i
], 1, NULL
);
5219 /* Make each accumulated option a separate argument. */
5220 do_spec_1 (" ", 0, NULL
);
5224 /* Dump out the options accumulated previously using -Wa,. */
5226 for (i
= 0; i
< n_assembler_options
; i
++)
5228 do_spec_1 (assembler_options
[i
], 1, NULL
);
5229 /* Make each accumulated option a separate argument. */
5230 do_spec_1 (" ", 0, NULL
);
5234 /* Dump out the options accumulated previously using -Wp,. */
5236 for (i
= 0; i
< n_preprocessor_options
; i
++)
5238 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5239 /* Make each accumulated option a separate argument. */
5240 do_spec_1 (" ", 0, NULL
);
5244 /* Here are digits and numbers that just process
5245 a certain constant string as a spec. */
5248 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5254 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5260 value
= do_spec_1 (asm_spec
, 0, NULL
);
5266 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5273 const char *const spec
5274 = (input_file_compiler
->cpp_spec
5275 ? input_file_compiler
->cpp_spec
5277 value
= do_spec_1 (spec
, 0, NULL
);
5284 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5290 value
= do_spec_1 (link_spec
, 0, NULL
);
5296 value
= do_spec_1 (lib_spec
, 0, NULL
);
5302 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5308 /* We assume there is a directory
5309 separator at the end of this string. */
5310 if (target_system_root
)
5312 obstack_grow (&obstack
, target_system_root
,
5313 strlen (target_system_root
));
5314 if (target_sysroot_suffix
)
5315 obstack_grow (&obstack
, target_sysroot_suffix
,
5316 strlen (target_sysroot_suffix
));
5321 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5326 /* Here we define characters other than letters and digits. */
5329 p
= handle_braces (p
);
5335 p
= handle_spec_function (p
);
5341 obstack_1grow (&obstack
, '%');
5348 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5350 suffix_subst
= save_string (p
- 1, len
+ 1);
5355 /* Henceforth ignore the option(s) matching the pattern
5360 int have_wildcard
= 0;
5363 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5366 if (p
[len
-1] == '*')
5369 for (i
= 0; i
< n_switches
; i
++)
5370 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5371 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5373 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5374 switches
[i
].validated
= 1;
5382 if (soft_matched_part
)
5384 do_spec_1 (soft_matched_part
, 1, NULL
);
5385 do_spec_1 (" ", 0, NULL
);
5388 /* Catch the case where a spec string contains something like
5389 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5390 hand side of the :. */
5391 error ("spec failure: '%%*' has not been initialized by pattern match");
5394 /* Process a string found as the value of a spec given by name.
5395 This feature allows individual machine descriptions
5396 to add and use their own specs.
5397 %[...] modifies -D options the way %P does;
5398 %(...) uses the spec unmodified. */
5400 error ("warning: use of obsolete %%[ operator in specs");
5403 const char *name
= p
;
5404 struct spec_list
*sl
;
5407 /* The string after the S/P is the name of a spec that is to be
5409 while (*p
&& *p
!= ')' && *p
!= ']')
5412 /* See if it's in the list. */
5413 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5414 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5416 name
= *(sl
->ptr_spec
);
5418 notice ("Processing spec %c%s%c, which is '%s'\n",
5419 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5428 value
= do_spec_1 (name
, 0, NULL
);
5434 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5436 const char *y
= name
;
5439 /* Copy all of NAME into BUF, but put __ after
5440 every -D and at the end of each arg. */
5443 if (! strncmp (y
, "-D", 2))
5454 && (*y
== ' ' || *y
== '\t' || *y
== '='
5455 || *y
== '}' || *y
== 0))
5468 value
= do_spec_1 (buf
, 0, NULL
);
5474 /* Discard the closing paren or bracket. */
5481 error ("spec failure: unrecognized spec option '%c'", c
);
5487 /* Backslash: treat next character as ordinary. */
5492 /* Ordinary character: put it into the current argument. */
5493 obstack_1grow (&obstack
, c
);
5497 /* End of string. If we are processing a spec function, we need to
5498 end any pending argument. */
5499 if (processing_spec_function
)
5505 /* Look up a spec function. */
5507 static const struct spec_function
*
5508 lookup_spec_function (const char *name
)
5510 const struct spec_function
*sf
;
5512 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5513 if (strcmp (sf
->name
, name
) == 0)
5519 /* Evaluate a spec function. */
5522 eval_spec_function (const char *func
, const char *args
)
5524 const struct spec_function
*sf
;
5525 const char *funcval
;
5527 /* Saved spec processing context. */
5528 int save_argbuf_index
;
5529 int save_argbuf_length
;
5530 const char **save_argbuf
;
5533 int save_delete_this_arg
;
5534 int save_this_is_output_file
;
5535 int save_this_is_library_file
;
5536 int save_input_from_pipe
;
5537 const char *save_suffix_subst
;
5540 sf
= lookup_spec_function (func
);
5542 fatal ("unknown spec function '%s'", func
);
5544 /* Push the spec processing context. */
5545 save_argbuf_index
= argbuf_index
;
5546 save_argbuf_length
= argbuf_length
;
5547 save_argbuf
= argbuf
;
5549 save_arg_going
= arg_going
;
5550 save_delete_this_arg
= delete_this_arg
;
5551 save_this_is_output_file
= this_is_output_file
;
5552 save_this_is_library_file
= this_is_library_file
;
5553 save_input_from_pipe
= input_from_pipe
;
5554 save_suffix_subst
= suffix_subst
;
5556 /* Create a new spec processing context, and build the function
5560 if (do_spec_2 (args
) < 0)
5561 fatal ("error in args to spec function '%s'", func
);
5563 /* argbuf_index is an index for the next argument to be inserted, and
5564 so contains the count of the args already inserted. */
5566 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5568 /* Pop the spec processing context. */
5569 argbuf_index
= save_argbuf_index
;
5570 argbuf_length
= save_argbuf_length
;
5572 argbuf
= save_argbuf
;
5574 arg_going
= save_arg_going
;
5575 delete_this_arg
= save_delete_this_arg
;
5576 this_is_output_file
= save_this_is_output_file
;
5577 this_is_library_file
= save_this_is_library_file
;
5578 input_from_pipe
= save_input_from_pipe
;
5579 suffix_subst
= save_suffix_subst
;
5584 /* Handle a spec function call of the form:
5588 ARGS is processed as a spec in a separate context and split into an
5589 argument vector in the normal fashion. The function returns a string
5590 containing a spec which we then process in the caller's context, or
5591 NULL if no processing is required. */
5594 handle_spec_function (const char *p
)
5597 const char *endp
, *funcval
;
5600 processing_spec_function
++;
5602 /* Get the function name. */
5603 for (endp
= p
; *endp
!= '\0'; endp
++)
5605 if (*endp
== '(') /* ) */
5607 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5608 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5609 fatal ("malformed spec function name");
5611 if (*endp
!= '(') /* ) */
5612 fatal ("no arguments for spec function");
5613 func
= save_string (p
, endp
- p
);
5616 /* Get the arguments. */
5617 for (count
= 0; *endp
!= '\0'; endp
++)
5626 else if (*endp
== '(') /* ) */
5631 fatal ("malformed spec function arguments");
5632 args
= save_string (p
, endp
- p
);
5635 /* p now points to just past the end of the spec function expression. */
5637 funcval
= eval_spec_function (func
, args
);
5638 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5644 processing_spec_function
--;
5649 /* Inline subroutine of handle_braces. Returns true if the current
5650 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5652 input_suffix_matches (const char *atom
, const char *end_atom
)
5654 return (input_suffix
5655 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5656 && input_suffix
[end_atom
- atom
] == '\0');
5659 /* Subroutine of handle_braces. Returns true if the current
5660 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5662 input_spec_matches (const char *atom
, const char *end_atom
)
5664 return (input_file_compiler
5665 && input_file_compiler
->suffix
5666 && input_file_compiler
->suffix
[0] != '\0'
5667 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5669 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5672 /* Subroutine of handle_braces. Returns true if a switch
5673 matching the atom bracketed by ATOM and END_ATOM appeared on the
5676 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5679 int len
= end_atom
- atom
;
5680 int plen
= starred
? len
: -1;
5682 for (i
= 0; i
< n_switches
; i
++)
5683 if (!strncmp (switches
[i
].part1
, atom
, len
)
5684 && (starred
|| switches
[i
].part1
[len
] == '\0')
5685 && check_live_switch (i
, plen
))
5691 /* Inline subroutine of handle_braces. Mark all of the switches which
5692 match ATOM (extends to END_ATOM; STARRED indicates whether there
5693 was a star after the atom) for later processing. */
5695 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5698 int len
= end_atom
- atom
;
5699 int plen
= starred
? len
: -1;
5701 for (i
= 0; i
< n_switches
; i
++)
5702 if (!strncmp (switches
[i
].part1
, atom
, len
)
5703 && (starred
|| switches
[i
].part1
[len
] == '\0')
5704 && check_live_switch (i
, plen
))
5705 switches
[i
].ordering
= 1;
5708 /* Inline subroutine of handle_braces. Process all the currently
5709 marked switches through give_switch, and clear the marks. */
5711 process_marked_switches (void)
5715 for (i
= 0; i
< n_switches
; i
++)
5716 if (switches
[i
].ordering
== 1)
5718 switches
[i
].ordering
= 0;
5723 /* Handle a %{ ... } construct. P points just inside the leading {.
5724 Returns a pointer one past the end of the brace block, or 0
5725 if we call do_spec_1 and that returns -1. */
5728 handle_braces (const char *p
)
5730 const char *atom
, *end_atom
;
5731 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5732 const char *orig
= p
;
5740 bool a_must_be_last
= false;
5741 bool ordered_set
= false;
5742 bool disjunct_set
= false;
5743 bool disj_matched
= false;
5744 bool disj_starred
= true;
5745 bool n_way_choice
= false;
5746 bool n_way_matched
= false;
5748 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5755 /* Scan one "atom" (S in the description above of %{}, possibly
5756 with '!', '.', '@', ',', or '*' modifiers). */
5758 a_is_suffix
= false;
5759 a_is_starred
= false;
5760 a_is_negated
= false;
5761 a_is_spectype
= false;
5765 p
++, a_is_negated
= true;
5769 p
++, a_is_suffix
= true;
5771 p
++, a_is_spectype
= true;
5774 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5775 || *p
== ',' || *p
== '.' || *p
== '@')
5780 p
++, a_is_starred
= 1;
5786 /* Substitute the switch(es) indicated by the current atom. */
5788 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5789 || a_is_spectype
|| atom
== end_atom
)
5792 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5795 process_marked_switches ();
5799 /* Substitute some text if the current atom appears as a switch
5801 disjunct_set
= true;
5805 if (atom
== end_atom
)
5807 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5808 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5812 /* An empty term may appear as the last choice of an
5813 N-way choice set; it means "otherwise". */
5814 a_must_be_last
= true;
5815 disj_matched
= !n_way_matched
;
5816 disj_starred
= false;
5820 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5824 disj_starred
= false;
5826 /* Don't bother testing this atom if we already have a
5828 if (!disj_matched
&& !n_way_matched
)
5831 a_matched
= input_suffix_matches (atom
, end_atom
);
5832 else if (a_is_spectype
)
5833 a_matched
= input_spec_matches (atom
, end_atom
);
5835 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5837 if (a_matched
!= a_is_negated
)
5839 disj_matched
= true;
5841 d_end_atom
= end_atom
;
5848 /* Found the body, that is, the text to substitute if the
5849 current disjunction matches. */
5850 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5851 disj_matched
&& !n_way_matched
);
5855 /* If we have an N-way choice, reset state for the next
5859 n_way_choice
= true;
5860 n_way_matched
|= disj_matched
;
5861 disj_matched
= false;
5862 disj_starred
= true;
5863 d_atom
= d_end_atom
= NULL
;
5872 while (*p
++ != '}');
5877 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5882 /* Subroutine of handle_braces. Scan and process a brace substitution body
5883 (X in the description of %{} syntax). P points one past the colon;
5884 ATOM and END_ATOM bracket the first atom which was found to be true
5885 (present) in the current disjunction; STARRED indicates whether all
5886 the atoms in the current disjunction were starred (for syntax validation);
5887 MATCHED indicates whether the disjunction matched or not, and therefore
5888 whether or not the body is to be processed through do_spec_1 or just
5889 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5893 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5894 int starred
, int matched
)
5896 const char *body
, *end_body
;
5897 unsigned int nesting_level
;
5898 bool have_subst
= false;
5900 /* Locate the closing } or ;, honoring nested braces.
5901 Trim trailing whitespace. */
5910 if (!--nesting_level
)
5913 else if (*p
== ';' && nesting_level
== 1)
5915 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5917 else if (*p
== '\0')
5923 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5926 if (have_subst
&& !starred
)
5931 /* Copy the substitution body to permanent storage and execute it.
5932 If have_subst is false, this is a simple matter of running the
5933 body through do_spec_1... */
5934 char *string
= save_string (body
, end_body
- body
);
5937 if (do_spec_1 (string
, 0, NULL
) < 0)
5942 /* ... but if have_subst is true, we have to process the
5943 body once for each matching switch, with %* set to the
5944 variant part of the switch. */
5945 unsigned int hard_match_len
= end_atom
- atom
;
5948 for (i
= 0; i
< n_switches
; i
++)
5949 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5950 && check_live_switch (i
, hard_match_len
))
5952 if (do_spec_1 (string
, 0,
5953 &switches
[i
].part1
[hard_match_len
]) < 0)
5955 /* Pass any arguments this switch has. */
5957 suffix_subst
= NULL
;
5965 fatal ("braced spec body '%s' is invalid", body
);
5968 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5969 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5970 spec, or -1 if either exact match or %* is used.
5972 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5973 whose value does not begin with "no-" is obsoleted by the same value
5974 with the "no-", similarly for a switch with the "no-" prefix. */
5977 check_live_switch (int switchnum
, int prefix_length
)
5979 const char *name
= switches
[switchnum
].part1
;
5982 /* In the common case of {<at-most-one-letter>*}, a negating
5983 switch would always match, so ignore that case. We will just
5984 send the conflicting switches to the compiler phase. */
5985 if (prefix_length
>= 0 && prefix_length
<= 1)
5988 /* If we already processed this switch and determined if it was
5989 live or not, return our past determination. */
5990 if (switches
[switchnum
].live_cond
!= 0)
5991 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5992 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0);
5994 /* Now search for duplicate in a manner that depends on the name. */
5998 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5999 if (switches
[i
].part1
[0] == 'O')
6001 switches
[switchnum
].validated
= 1;
6002 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6007 case 'W': case 'f': case 'm':
6008 if (! strncmp (name
+ 1, "no-", 3))
6010 /* We have Xno-YYY, search for XYYY. */
6011 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6012 if (switches
[i
].part1
[0] == name
[0]
6013 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6015 switches
[switchnum
].validated
= 1;
6016 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6022 /* We have XYYY, search for Xno-YYY. */
6023 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6024 if (switches
[i
].part1
[0] == name
[0]
6025 && switches
[i
].part1
[1] == 'n'
6026 && switches
[i
].part1
[2] == 'o'
6027 && switches
[i
].part1
[3] == '-'
6028 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6030 switches
[switchnum
].validated
= 1;
6031 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6038 /* Otherwise the switch is live. */
6039 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6043 /* Pass a switch to the current accumulating command
6044 in the same form that we received it.
6045 SWITCHNUM identifies the switch; it is an index into
6046 the vector of switches gcc received, which is `switches'.
6047 This cannot fail since it never finishes a command line.
6049 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6052 give_switch (int switchnum
, int omit_first_word
)
6054 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6057 if (!omit_first_word
)
6059 do_spec_1 ("-", 0, NULL
);
6060 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6063 if (switches
[switchnum
].args
!= 0)
6066 for (p
= switches
[switchnum
].args
; *p
; p
++)
6068 const char *arg
= *p
;
6070 do_spec_1 (" ", 0, NULL
);
6073 unsigned length
= strlen (arg
);
6076 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6077 if (arg
[length
] == '.')
6079 (CONST_CAST(char *, arg
))[length
] = 0;
6083 do_spec_1 (arg
, 1, NULL
);
6085 (CONST_CAST(char *, arg
))[length
] = '.';
6086 do_spec_1 (suffix_subst
, 1, NULL
);
6089 do_spec_1 (arg
, 1, NULL
);
6093 do_spec_1 (" ", 0, NULL
);
6094 switches
[switchnum
].validated
= 1;
6097 /* Search for a file named NAME trying various prefixes including the
6098 user's -B prefix and some standard ones.
6099 Return the absolute file name found. If nothing is found, return NAME. */
6102 find_file (const char *name
)
6104 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6105 return newname
? newname
: name
;
6108 /* Determine whether a directory exists. If LINKER, return 0 for
6109 certain fixed names not needed by the linker. */
6112 is_directory (const char *path1
, bool linker
)
6119 /* Ensure the string ends with "/.". The resulting path will be a
6120 directory even if the given path is a symbolic link. */
6121 len1
= strlen (path1
);
6122 path
= (char *) alloca (3 + len1
);
6123 memcpy (path
, path1
, len1
);
6125 if (!IS_DIR_SEPARATOR (cp
[-1]))
6126 *cp
++ = DIR_SEPARATOR
;
6130 /* Exclude directories that the linker is known to search. */
6132 && IS_DIR_SEPARATOR (path
[0])
6134 && strncmp (path
+ 1, "lib", 3) == 0)
6136 && strncmp (path
+ 1, "usr", 3) == 0
6137 && IS_DIR_SEPARATOR (path
[4])
6138 && strncmp (path
+ 5, "lib", 3) == 0)))
6141 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6144 /* Set up the various global variables to indicate that we're processing
6145 the input file named FILENAME. */
6148 set_input (const char *filename
)
6152 input_filename
= filename
;
6153 input_filename_length
= strlen (input_filename
);
6155 input_basename
= input_filename
;
6156 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6157 /* Skip drive name so 'x:foo' is handled properly. */
6158 if (input_basename
[1] == ':')
6159 input_basename
+= 2;
6161 for (p
= input_basename
; *p
; p
++)
6162 if (IS_DIR_SEPARATOR (*p
))
6163 input_basename
= p
+ 1;
6165 /* Find a suffix starting with the last period,
6166 and set basename_length to exclude that suffix. */
6167 basename_length
= strlen (input_basename
);
6168 suffixed_basename_length
= basename_length
;
6169 p
= input_basename
+ basename_length
;
6170 while (p
!= input_basename
&& *p
!= '.')
6172 if (*p
== '.' && p
!= input_basename
)
6174 basename_length
= p
- input_basename
;
6175 input_suffix
= p
+ 1;
6180 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6181 we will need to do a stat on the input_filename. The
6182 INPUT_STAT_SET signals that the stat is needed. */
6186 /* On fatal signals, delete all the temporary files. */
6189 fatal_error (int signum
)
6191 signal (signum
, SIG_DFL
);
6192 delete_failure_queue ();
6193 delete_temp_files ();
6194 /* Get the same signal again, this time not handled,
6195 so its normal effect occurs. */
6196 kill (getpid (), signum
);
6199 extern int main (int, char **);
6202 main (int argc
, char **argv
)
6206 int linker_was_run
= 0;
6207 int lang_n_infiles
= 0;
6208 int num_linker_inputs
= 0;
6209 char *explicit_link_files
;
6212 struct user_specs
*uptr
;
6213 char **old_argv
= argv
;
6215 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6216 on ?: in file-scope variable initializations. */
6217 asm_debug
= ASM_DEBUG_SPEC
;
6219 p
= argv
[0] + strlen (argv
[0]);
6220 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6224 xmalloc_set_program_name (programname
);
6226 expandargv (&argc
, &argv
);
6228 /* Determine if any expansions were made. */
6229 if (argv
!= old_argv
)
6230 at_file_supplied
= true;
6232 prune_options (&argc
, &argv
);
6234 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6235 /* Perform host dependent initialization when needed. */
6236 GCC_DRIVER_HOST_INITIALIZATION
;
6239 /* Unlock the stdio streams. */
6240 unlock_std_streams ();
6242 gcc_init_libintl ();
6244 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6245 signal (SIGINT
, fatal_error
);
6247 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6248 signal (SIGHUP
, fatal_error
);
6250 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6251 signal (SIGTERM
, fatal_error
);
6253 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6254 signal (SIGPIPE
, fatal_error
);
6257 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6258 receive the signal. A different setting is inheritable */
6259 signal (SIGCHLD
, SIG_DFL
);
6262 /* Allocate the argument vector. */
6265 obstack_init (&obstack
);
6267 /* Build multilib_select, et. al from the separate lines that make up each
6268 multilib selection. */
6270 const char *const *q
= multilib_raw
;
6273 obstack_init (&multilib_obstack
);
6274 while ((p
= *q
++) != (char *) 0)
6275 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6277 obstack_1grow (&multilib_obstack
, 0);
6278 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6280 q
= multilib_matches_raw
;
6281 while ((p
= *q
++) != (char *) 0)
6282 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6284 obstack_1grow (&multilib_obstack
, 0);
6285 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6287 q
= multilib_exclusions_raw
;
6288 while ((p
= *q
++) != (char *) 0)
6289 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6291 obstack_1grow (&multilib_obstack
, 0);
6292 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6295 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6298 obstack_1grow (&multilib_obstack
, ' ');
6299 obstack_grow (&multilib_obstack
,
6300 multilib_defaults_raw
[i
],
6301 strlen (multilib_defaults_raw
[i
]));
6305 obstack_1grow (&multilib_obstack
, 0);
6306 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6309 /* Set up to remember the pathname of gcc and any options
6310 needed for collect. We use argv[0] instead of programname because
6311 we need the complete pathname. */
6312 obstack_init (&collect_obstack
);
6313 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6314 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6315 xputenv (XOBFINISH (&collect_obstack
, char *));
6317 #ifdef INIT_ENVIRONMENT
6318 /* Set up any other necessary machine specific environment variables. */
6319 xputenv (INIT_ENVIRONMENT
);
6322 /* Make a table of what switches there are (switches, n_switches).
6323 Make a table of specified input files (infiles, n_infiles).
6324 Decode switches that are handled locally. */
6326 process_command (argc
, (const char **) argv
);
6328 /* Initialize the vector of specs to just the default.
6329 This means one element containing 0s, as a terminator. */
6331 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6332 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6333 n_compilers
= n_default_compilers
;
6335 /* Read specs from a file if there is one. */
6337 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6338 spec_version
, dir_separator_str
, NULL
);
6339 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6341 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6342 /* Read the specs file unless it is a default one. */
6343 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6344 read_specs (specs_file
, TRUE
);
6348 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6349 for any override of as, ld and libraries. */
6350 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6351 + strlen (just_machine_suffix
) + sizeof ("specs"));
6353 strcpy (specs_file
, standard_exec_prefix
);
6354 strcat (specs_file
, just_machine_suffix
);
6355 strcat (specs_file
, "specs");
6356 if (access (specs_file
, R_OK
) == 0)
6357 read_specs (specs_file
, TRUE
);
6359 /* Process any configure-time defaults specified for the command line
6360 options, via OPTION_DEFAULT_SPECS. */
6361 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6362 do_option_spec (option_default_specs
[i
].name
,
6363 option_default_specs
[i
].spec
);
6365 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6366 of the command line. */
6368 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6369 do_self_spec (driver_self_specs
[i
]);
6371 /* If not cross-compiling, look for executables in the standard
6373 if (*cross_compile
== '0')
6375 if (*md_exec_prefix
)
6377 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6378 PREFIX_PRIORITY_LAST
, 0, 0);
6382 /* Process sysroot_suffix_spec. */
6383 if (*sysroot_suffix_spec
!= 0
6384 && do_spec_2 (sysroot_suffix_spec
) == 0)
6386 if (argbuf_index
> 1)
6387 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6388 else if (argbuf_index
== 1)
6389 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6392 #ifdef HAVE_LD_SYSROOT
6393 /* Pass the --sysroot option to the linker, if it supports that. If
6394 there is a sysroot_suffix_spec, it has already been processed by
6395 this point, so target_system_root really is the system root we
6397 if (target_system_root
)
6399 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6400 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6401 set_spec ("link", XOBFINISH (&obstack
, const char *));
6405 /* Process sysroot_hdrs_suffix_spec. */
6406 if (*sysroot_hdrs_suffix_spec
!= 0
6407 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6409 if (argbuf_index
> 1)
6410 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6411 else if (argbuf_index
== 1)
6412 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6415 /* Look for startfiles in the standard places. */
6416 if (*startfile_prefix_spec
!= 0
6417 && do_spec_2 (startfile_prefix_spec
) == 0
6418 && do_spec_1 (" ", 0, NULL
) == 0)
6421 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6422 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6423 PREFIX_PRIORITY_LAST
, 0, 1);
6425 /* We should eventually get rid of all these and stick to
6426 startfile_prefix_spec exclusively. */
6427 else if (*cross_compile
== '0' || target_system_root
)
6429 if (*md_startfile_prefix
)
6430 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6431 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6433 if (*md_startfile_prefix_1
)
6434 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6435 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6437 /* If standard_startfile_prefix is relative, base it on
6438 standard_exec_prefix. This lets us move the installed tree
6439 as a unit. If GCC_EXEC_PREFIX is defined, base
6440 standard_startfile_prefix on that as well.
6442 If the prefix is relative, only search it for native compilers;
6443 otherwise we will search a directory containing host libraries. */
6444 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6445 add_sysrooted_prefix (&startfile_prefixes
,
6446 standard_startfile_prefix
, "BINUTILS",
6447 PREFIX_PRIORITY_LAST
, 0, 1);
6448 else if (*cross_compile
== '0')
6450 add_prefix (&startfile_prefixes
,
6451 concat (gcc_exec_prefix
6452 ? gcc_exec_prefix
: standard_exec_prefix
,
6454 standard_startfile_prefix
, NULL
),
6455 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6458 /* Sysrooted prefixes are relocated because target_system_root is
6459 also relocated by gcc_exec_prefix. */
6460 if (*standard_startfile_prefix_1
)
6461 add_sysrooted_prefix (&startfile_prefixes
,
6462 standard_startfile_prefix_1
, "BINUTILS",
6463 PREFIX_PRIORITY_LAST
, 0, 1);
6464 if (*standard_startfile_prefix_2
)
6465 add_sysrooted_prefix (&startfile_prefixes
,
6466 standard_startfile_prefix_2
, "BINUTILS",
6467 PREFIX_PRIORITY_LAST
, 0, 1);
6470 /* Process any user specified specs in the order given on the command
6472 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6474 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6476 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6479 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6480 if (gcc_exec_prefix
)
6481 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6482 spec_version
, dir_separator_str
, NULL
);
6484 /* Now we have the specs.
6485 Set the `valid' bits for switches that match anything in any spec. */
6487 validate_all_switches ();
6489 /* Now that we have the switches and the specs, set
6490 the subdirectory based on the options. */
6491 set_multilib_dir ();
6493 /* Warn about any switches that no pass was interested in. */
6495 for (i
= 0; (int) i
< n_switches
; i
++)
6496 if (! switches
[i
].validated
)
6497 error ("unrecognized option '-%s'", switches
[i
].part1
);
6499 /* Obey some of the options. */
6501 if (print_search_dirs
)
6503 printf (_("install: %s%s\n"),
6504 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6505 gcc_exec_prefix
? "" : machine_suffix
);
6506 printf (_("programs: %s\n"),
6507 build_search_list (&exec_prefixes
, "", false, false));
6508 printf (_("libraries: %s\n"),
6509 build_search_list (&startfile_prefixes
, "", false, true));
6513 if (print_file_name
)
6515 printf ("%s\n", find_file (print_file_name
));
6519 if (print_prog_name
)
6521 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6522 printf ("%s\n", (newname
? newname
: print_prog_name
));
6526 if (print_multi_lib
)
6528 print_multilib_info ();
6532 if (print_multi_directory
)
6534 if (multilib_dir
== NULL
)
6537 printf ("%s\n", multilib_dir
);
6543 if (target_system_root
)
6545 if (target_sysroot_suffix
)
6546 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6548 printf ("%s\n", target_system_root
);
6553 if (print_multi_os_directory
)
6555 if (multilib_os_dir
== NULL
)
6558 printf ("%s\n", multilib_os_dir
);
6562 if (print_sysroot_headers_suffix
)
6564 if (*sysroot_hdrs_suffix_spec
)
6566 printf("%s\n", (target_sysroot_hdrs_suffix
6567 ? target_sysroot_hdrs_suffix
6572 /* The error status indicates that only one set of fixed
6573 headers should be built. */
6574 fatal ("not configured with sysroot headers suffix");
6577 if (print_help_list
)
6583 printf (_("\nFor bug reporting instructions, please see:\n"));
6584 printf ("%s.\n", bug_report_url
);
6589 /* We do not exit here. Instead we have created a fake input file
6590 called 'help-dummy' which needs to be compiled, and we pass this
6591 on the various sub-processes, along with the --help switch. */
6599 notice ("Target: %s\n", spec_machine
);
6600 notice ("Configured with: %s\n", configuration_arguments
);
6602 #ifdef THREAD_MODEL_SPEC
6603 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6604 but there's no point in doing all this processing just to get
6605 thread_model back. */
6606 obstack_init (&obstack
);
6607 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6608 obstack_1grow (&obstack
, '\0');
6609 thrmod
= XOBFINISH (&obstack
, const char *);
6611 thrmod
= thread_model
;
6614 notice ("Thread model: %s\n", thrmod
);
6616 /* compiler_version is truncated at the first space when initialized
6617 from version string, so truncate version_string at the first space
6618 before comparing. */
6619 for (n
= 0; version_string
[n
]; n
++)
6620 if (version_string
[n
] == ' ')
6623 if (! strncmp (version_string
, compiler_version
, n
)
6624 && compiler_version
[n
] == 0)
6625 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
6627 notice ("gcc driver version %s %sexecuting gcc version %s\n",
6628 version_string
, pkgversion_string
, compiler_version
);
6634 if (n_infiles
== added_libraries
)
6635 fatal ("no input files");
6637 /* Make a place to record the compiler output file names
6638 that correspond to the input files. */
6641 i
+= lang_specific_extra_outfiles
;
6642 outfiles
= XCNEWVEC (const char *, i
);
6644 /* Record which files were specified explicitly as link input. */
6646 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6649 combine_inputs
= true;
6651 combine_inputs
= false;
6653 for (i
= 0; (int) i
< n_infiles
; i
++)
6655 const char *name
= infiles
[i
].name
;
6656 struct compiler
*compiler
= lookup_compiler (name
,
6658 infiles
[i
].language
);
6660 if (compiler
&& !(compiler
->combinable
))
6661 combine_inputs
= false;
6663 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6664 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6665 infiles
[i
].incompiler
= compiler
;
6669 input_file_compiler
= compiler
;
6670 infiles
[i
].incompiler
= compiler
;
6674 /* Since there is no compiler for this input file, assume it is a
6676 explicit_link_files
[i
] = 1;
6677 infiles
[i
].incompiler
= NULL
;
6679 infiles
[i
].compiled
= false;
6680 infiles
[i
].preprocessed
= false;
6683 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6684 fatal ("cannot specify -o with -c or -S with multiple files");
6686 if (combine_flag
&& save_temps_flag
)
6688 bool save_combine_inputs
= combine_inputs
;
6689 /* Must do a separate pre-processing pass for C & Objective-C files, to
6690 obtain individual .i files. */
6692 combine_inputs
= false;
6693 for (i
= 0; (int) i
< n_infiles
; i
++)
6695 int this_file_error
= 0;
6697 input_file_number
= i
;
6698 set_input (infiles
[i
].name
);
6699 if (infiles
[i
].incompiler
6700 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6701 input_file_compiler
= infiles
[i
].incompiler
;
6705 if (input_file_compiler
)
6707 if (input_file_compiler
->spec
[0] == '#')
6709 error ("%s: %s compiler not installed on this system",
6710 input_filename
, &input_file_compiler
->spec
[1]);
6711 this_file_error
= 1;
6715 value
= do_spec (input_file_compiler
->spec
);
6716 infiles
[i
].preprocessed
= true;
6717 if (!have_o_argbuf_index
)
6718 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6719 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6720 infiles
[i
].incompiler
6721 = lookup_compiler (infiles
[i
].name
,
6722 strlen (infiles
[i
].name
),
6723 infiles
[i
].language
);
6726 this_file_error
= 1;
6730 if (this_file_error
)
6732 delete_failure_queue ();
6736 clear_failure_queue ();
6738 combine_inputs
= save_combine_inputs
;
6741 for (i
= 0; (int) i
< n_infiles
; i
++)
6743 int this_file_error
= 0;
6745 /* Tell do_spec what to substitute for %i. */
6747 input_file_number
= i
;
6748 set_input (infiles
[i
].name
);
6750 if (infiles
[i
].compiled
)
6753 /* Use the same thing in %o, unless cp->spec says otherwise. */
6755 outfiles
[i
] = input_filename
;
6757 /* Figure out which compiler from the file's suffix. */
6759 if (! combine_inputs
)
6761 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6762 infiles
[i
].language
);
6764 input_file_compiler
= infiles
[i
].incompiler
;
6766 if (input_file_compiler
)
6768 /* Ok, we found an applicable compiler. Run its spec. */
6770 if (input_file_compiler
->spec
[0] == '#')
6772 error ("%s: %s compiler not installed on this system",
6773 input_filename
, &input_file_compiler
->spec
[1]);
6774 this_file_error
= 1;
6778 value
= do_spec (input_file_compiler
->spec
);
6779 infiles
[i
].compiled
= true;
6781 this_file_error
= 1;
6785 /* If this file's name does not contain a recognized suffix,
6786 record it as explicit linker input. */
6789 explicit_link_files
[i
] = 1;
6791 /* Clear the delete-on-failure queue, deleting the files in it
6792 if this compilation failed. */
6794 if (this_file_error
)
6796 delete_failure_queue ();
6799 /* If this compilation succeeded, don't delete those files later. */
6800 clear_failure_queue ();
6803 /* Reset the input file name to the first compile/object file name, for use
6804 with %b in LINK_SPEC. We use the first input file that we can find
6805 a compiler to compile it instead of using infiles.language since for
6806 languages other than C we use aliases that we then lookup later. */
6811 for (i
= 0; i
< n_infiles
; i
++)
6812 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6814 set_input (infiles
[i
].name
);
6819 if (error_count
== 0)
6821 /* Make sure INPUT_FILE_NUMBER points to first available open
6823 input_file_number
= n_infiles
;
6824 if (lang_specific_pre_link ())
6828 /* Determine if there are any linker input files. */
6829 num_linker_inputs
= 0;
6830 for (i
= 0; (int) i
< n_infiles
; i
++)
6831 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6832 num_linker_inputs
++;
6834 /* Run ld to link all the compiler output files. */
6836 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
6838 int tmp
= execution_count
;
6840 /* We'll use ld if we can't find collect2. */
6841 if (! strcmp (linker_name_spec
, "collect2"))
6843 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6845 linker_name_spec
= "ld";
6847 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6849 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6850 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6852 if (print_subprocess_help
== 1)
6854 printf (_("\nLinker options\n==============\n\n"));
6855 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6856 " to the linker.\n\n"));
6859 value
= do_spec (link_command_spec
);
6862 linker_was_run
= (tmp
!= execution_count
);
6865 /* If options said don't run linker,
6866 complain about input files to be given to the linker. */
6868 if (! linker_was_run
&& error_count
== 0)
6869 for (i
= 0; (int) i
< n_infiles
; i
++)
6870 if (explicit_link_files
[i
]
6871 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6872 error ("%s: linker input file unused because linking not done",
6875 /* Delete some or all of the temporary files we made. */
6878 delete_failure_queue ();
6879 delete_temp_files ();
6881 if (print_help_list
)
6883 printf (("\nFor bug reporting instructions, please see:\n"));
6884 printf ("%s\n", bug_report_url
);
6887 return (signal_count
!= 0 ? 2
6888 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6892 /* Find the proper compilation spec for the file name NAME,
6893 whose length is LENGTH. LANGUAGE is the specified language,
6894 or 0 if this file is to be passed to the linker. */
6896 static struct compiler
*
6897 lookup_compiler (const char *name
, size_t length
, const char *language
)
6899 struct compiler
*cp
;
6901 /* If this was specified by the user to be a linker input, indicate that. */
6902 if (language
!= 0 && language
[0] == '*')
6905 /* Otherwise, look for the language, if one is spec'd. */
6908 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6909 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6912 error ("language %s not recognized", language
);
6916 /* Look for a suffix. */
6917 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6919 if (/* The suffix `-' matches only the file name `-'. */
6920 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6921 || (strlen (cp
->suffix
) < length
6922 /* See if the suffix matches the end of NAME. */
6923 && !strcmp (cp
->suffix
,
6924 name
+ length
- strlen (cp
->suffix
))
6929 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6930 /* Look again, but case-insensitively this time. */
6932 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6934 if (/* The suffix `-' matches only the file name `-'. */
6935 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6936 || (strlen (cp
->suffix
) < length
6937 /* See if the suffix matches the end of NAME. */
6938 && ((!strcmp (cp
->suffix
,
6939 name
+ length
- strlen (cp
->suffix
))
6940 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6941 && !strcasecmp (cp
->suffix
,
6942 name
+ length
- strlen (cp
->suffix
)))
6948 if (cp
>= compilers
)
6950 if (cp
->spec
[0] != '@')
6951 /* A non-alias entry: return it. */
6954 /* An alias entry maps a suffix to a language.
6955 Search for the language; pass 0 for NAME and LENGTH
6956 to avoid infinite recursion if language not found. */
6957 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6963 save_string (const char *s
, int len
)
6965 char *result
= XNEWVEC (char, len
+ 1);
6967 memcpy (result
, s
, len
);
6973 pfatal_with_name (const char *name
)
6975 perror_with_name (name
);
6976 delete_temp_files ();
6981 perror_with_name (const char *name
)
6983 error ("%s: %s", name
, xstrerror (errno
));
6986 /* Output an error message and exit. */
6989 fancy_abort (const char *file
, int line
, const char *func
)
6991 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6994 /* Output an error message and exit. */
6997 fatal_ice (const char *cmsgid
, ...)
7001 va_start (ap
, cmsgid
);
7003 fprintf (stderr
, "%s: ", programname
);
7004 vfprintf (stderr
, _(cmsgid
), ap
);
7006 fprintf (stderr
, "\n");
7007 delete_temp_files ();
7008 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7012 fatal (const char *cmsgid
, ...)
7016 va_start (ap
, cmsgid
);
7018 fprintf (stderr
, "%s: ", programname
);
7019 vfprintf (stderr
, _(cmsgid
), ap
);
7021 fprintf (stderr
, "\n");
7022 delete_temp_files ();
7026 /* The argument is actually c-format, not gcc-internal-format,
7027 but because functions with identical names are used through
7028 the rest of the compiler with gcc-internal-format, we just
7029 need to hope all users of these functions use the common
7030 subset between c-format and gcc-internal-format. */
7033 error (const char *gmsgid
, ...)
7037 va_start (ap
, gmsgid
);
7038 fprintf (stderr
, "%s: ", programname
);
7039 vfprintf (stderr
, _(gmsgid
), ap
);
7042 fprintf (stderr
, "\n");
7046 notice (const char *cmsgid
, ...)
7050 va_start (ap
, cmsgid
);
7051 vfprintf (stderr
, _(cmsgid
), ap
);
7056 validate_switches_from_spec (const char *spec
)
7058 const char *p
= spec
;
7061 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7062 /* We have a switch spec. */
7063 p
= validate_switches (p
+ 1);
7067 validate_all_switches (void)
7069 struct compiler
*comp
;
7070 struct spec_list
*spec
;
7072 for (comp
= compilers
; comp
->spec
; comp
++)
7073 validate_switches_from_spec (comp
->spec
);
7075 /* Look through the linked list of specs read from the specs file. */
7076 for (spec
= specs
; spec
; spec
= spec
->next
)
7077 validate_switches_from_spec (*spec
->ptr_spec
);
7079 validate_switches_from_spec (link_command_spec
);
7082 /* Look at the switch-name that comes after START
7083 and mark as valid all supplied switches that match it. */
7086 validate_switches (const char *start
)
7088 const char *p
= start
;
7092 bool suffix
= false;
7093 bool starred
= false;
7095 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7104 if (*p
== '.' || *p
== ',')
7108 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7109 || *p
== ',' || *p
== '.' || *p
== '@')
7114 starred
= true, p
++;
7120 /* Mark all matching switches as valid. */
7121 for (i
= 0; i
< n_switches
; i
++)
7122 if (!strncmp (switches
[i
].part1
, atom
, len
)
7123 && (starred
|| switches
[i
].part1
[len
] == 0))
7124 switches
[i
].validated
= 1;
7128 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7131 if (*p
&& p
[-1] == ':')
7133 while (*p
&& *p
!= ';' && *p
!= '}')
7138 if (*p
== '{' || *p
== '<')
7139 p
= validate_switches (p
+1);
7140 else if (p
[0] == 'W' && p
[1] == '{')
7141 p
= validate_switches (p
+2);
7148 if (*p
&& p
[-1] == ';')
7162 static struct mdswitchstr
*mdswitches
;
7163 static int n_mdswitches
;
7165 /* Check whether a particular argument was used. The first time we
7166 canonicalize the switches to keep only the ones we care about. */
7169 used_arg (const char *p
, int len
)
7174 const char *replace
;
7179 static struct mswitchstr
*mswitches
;
7180 static int n_mswitches
;
7185 struct mswitchstr
*matches
;
7189 /* Break multilib_matches into the component strings of string
7190 and replacement string. */
7191 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7196 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7198 q
= multilib_matches
;
7207 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7211 matches
[i
].len
= q
- matches
[i
].str
;
7213 matches
[i
].replace
= ++q
;
7214 while (*q
!= ';' && *q
!= '\0')
7217 goto invalid_matches
;
7220 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7226 /* Now build a list of the replacement string for switches that we care
7227 about. Make sure we allocate at least one entry. This prevents
7228 xmalloc from calling fatal, and prevents us from re-executing this
7231 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7232 for (i
= 0; i
< n_switches
; i
++)
7233 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7235 int xlen
= strlen (switches
[i
].part1
);
7236 for (j
= 0; j
< cnt
; j
++)
7237 if (xlen
== matches
[j
].len
7238 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7240 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7241 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7242 mswitches
[n_mswitches
].replace
= (char *) 0;
7243 mswitches
[n_mswitches
].rep_len
= 0;
7249 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7250 on the command line nor any options mutually incompatible with
7252 for (i
= 0; i
< n_mdswitches
; i
++)
7256 for (q
= multilib_options
; *q
!= '\0'; q
++)
7262 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7263 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7265 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7272 if (*q
!= ' ' && *q
!= '\0')
7274 while (*r
!= ' ' && *r
!= '\0')
7277 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7280 if (used_arg (r
, q
- r
))
7285 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7286 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7287 mswitches
[n_mswitches
].replace
= (char *) 0;
7288 mswitches
[n_mswitches
].rep_len
= 0;
7301 for (i
= 0; i
< n_mswitches
; i
++)
7302 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7309 default_arg (const char *p
, int len
)
7313 for (i
= 0; i
< n_mdswitches
; i
++)
7314 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7320 /* Work out the subdirectory to use based on the options. The format of
7321 multilib_select is a list of elements. Each element is a subdirectory
7322 name followed by a list of options followed by a semicolon. The format
7323 of multilib_exclusions is the same, but without the preceding
7324 directory. First gcc will check the exclusions, if none of the options
7325 beginning with an exclamation point are present, and all of the other
7326 options are present, then we will ignore this completely. Passing
7327 that, gcc will consider each multilib_select in turn using the same
7328 rules for matching the options. If a match is found, that subdirectory
7332 set_multilib_dir (void)
7335 unsigned int this_path_len
;
7336 const char *this_path
, *this_arg
;
7337 const char *start
, *end
;
7339 int ok
, ndfltok
, first
;
7342 start
= multilib_defaults
;
7343 while (*start
== ' ' || *start
== '\t')
7345 while (*start
!= '\0')
7348 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7350 while (*start
== ' ' || *start
== '\t')
7358 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7359 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7361 while (*start
== ' ' || *start
== '\t')
7367 for (end
= start
+ 1;
7368 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7371 obstack_grow (&multilib_obstack
, start
, end
- start
);
7372 obstack_1grow (&multilib_obstack
, 0);
7373 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7374 mdswitches
[i
++].len
= end
- start
;
7381 p
= multilib_exclusions
;
7384 /* Ignore newlines. */
7391 /* Check the arguments. */
7398 fatal ("multilib exclusions '%s' is invalid",
7399 multilib_exclusions
);
7409 while (*p
!= ' ' && *p
!= ';')
7412 goto invalid_exclusions
;
7416 if (*this_arg
!= '!')
7424 ok
= used_arg (this_arg
, p
- this_arg
);
7439 p
= multilib_select
;
7442 /* Ignore newlines. */
7449 /* Get the initial path. */
7456 fatal ("multilib select '%s' is invalid",
7461 this_path_len
= p
- this_path
;
7463 /* Check the arguments. */
7470 goto invalid_select
;
7479 while (*p
!= ' ' && *p
!= ';')
7482 goto invalid_select
;
7486 if (*this_arg
!= '!')
7494 /* If this is a default argument, we can just ignore it.
7495 This is true even if this_arg begins with '!'. Beginning
7496 with '!' does not mean that this argument is necessarily
7497 inappropriate for this library: it merely means that
7498 there is a more specific library which uses this
7499 argument. If this argument is a default, we need not
7500 consider that more specific library. */
7501 ok
= used_arg (this_arg
, p
- this_arg
);
7508 if (default_arg (this_arg
, p
- this_arg
))
7517 if (this_path_len
!= 1
7518 || this_path
[0] != '.')
7520 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7523 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7524 new_multilib_dir
[this_path_len
] = '\0';
7525 q
= strchr (new_multilib_dir
, ':');
7528 multilib_dir
= new_multilib_dir
;
7535 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7537 while (q
< end
&& *q
!= ':')
7541 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7542 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7543 new_multilib_os_dir
[end
- q
- 1] = '\0';
7544 multilib_os_dir
= new_multilib_os_dir
;
7552 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7553 && strcmp (multilib_os_dir
, ".") == 0)
7555 free (CONST_CAST (char *, multilib_os_dir
));
7556 multilib_os_dir
= NULL
;
7558 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7559 multilib_os_dir
= multilib_dir
;
7562 /* Print out the multiple library subdirectory selection
7563 information. This prints out a series of lines. Each line looks
7564 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7565 required. Only the desired options are printed out, the negative
7566 matches. The options are print without a leading dash. There are
7567 no spaces to make it easy to use the information in the shell.
7568 Each subdirectory is printed only once. This assumes the ordering
7569 generated by the genmultilib script. Also, we leave out ones that match
7573 print_multilib_info (void)
7575 const char *p
= multilib_select
;
7576 const char *last_path
= 0, *this_path
;
7578 unsigned int last_path_len
= 0;
7583 /* Ignore newlines. */
7590 /* Get the initial path. */
7597 fatal ("multilib select '%s' is invalid", multilib_select
);
7603 /* When --disable-multilib was used but target defines
7604 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7605 to find multilib_os_dir, so skip them from output. */
7606 if (this_path
[0] == '.' && this_path
[1] == ':')
7609 /* Check for matches with the multilib_exclusions. We don't bother
7610 with the '!' in either list. If any of the exclusion rules match
7611 all of its options with the select rule, we skip it. */
7613 const char *e
= multilib_exclusions
;
7614 const char *this_arg
;
7619 /* Ignore newlines. */
7626 /* Check the arguments. */
7635 fatal ("multilib exclusion '%s' is invalid",
7636 multilib_exclusions
);
7647 while (*e
!= ' ' && *e
!= ';')
7650 goto invalid_exclusion
;
7658 int len
= e
- this_arg
;
7661 goto invalid_select
;
7665 while (*q
!= ' ' && *q
!= ';')
7668 goto invalid_select
;
7672 if (! strncmp (arg
, this_arg
,
7673 (len
< q
- arg
) ? q
- arg
: len
)
7674 || default_arg (this_arg
, e
- this_arg
))
7704 /* If this is a duplicate, skip it. */
7705 skip
= (last_path
!= 0
7706 && (unsigned int) (p
- this_path
) == last_path_len
7707 && ! strncmp (last_path
, this_path
, last_path_len
));
7709 last_path
= this_path
;
7710 last_path_len
= p
- this_path
;
7713 /* If this directory requires any default arguments, we can skip
7714 it. We will already have printed a directory identical to
7715 this one which does not require that default argument. */
7726 goto invalid_select
;
7733 while (*q
!= ' ' && *q
!= ';')
7736 goto invalid_select
;
7741 && default_arg (arg
, q
- arg
))
7756 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7767 goto invalid_select
;
7775 use_arg
= *p
!= '!';
7780 while (*p
!= ' ' && *p
!= ';')
7783 goto invalid_select
;
7795 /* If there are extra options, print them now. */
7796 if (multilib_extra
&& *multilib_extra
)
7798 int print_at
= TRUE
;
7801 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7822 /* getenv built-in spec function.
7824 Returns the value of the environment variable given by its first
7825 argument, concatenated with the second argument. If the
7826 environment variable is not defined, a fatal error is issued. */
7829 getenv_spec_function (int argc
, const char **argv
)
7839 value
= getenv (argv
[0]);
7841 fatal ("environment variable \"%s\" not defined", argv
[0]);
7843 /* We have to escape every character of the environment variable so
7844 they are not interpreted as active spec characters. A
7845 particularly painful case is when we are reading a variable
7846 holding a windows path complete with \ separators. */
7847 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7848 result
= XNEWVAR (char, len
);
7849 for (ptr
= result
; *value
; ptr
+= 2)
7855 strcpy (ptr
, argv
[1]);
7860 /* if-exists built-in spec function.
7862 Checks to see if the file specified by the absolute pathname in
7863 ARGS exists. Returns that pathname if found.
7865 The usual use for this function is to check for a library file
7866 (whose name has been expanded with %s). */
7869 if_exists_spec_function (int argc
, const char **argv
)
7871 /* Must have only one argument. */
7872 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7878 /* if-exists-else built-in spec function.
7880 This is like if-exists, but takes an additional argument which
7881 is returned if the first argument does not exist. */
7884 if_exists_else_spec_function (int argc
, const char **argv
)
7886 /* Must have exactly two arguments. */
7890 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7896 /* replace-outfile built-in spec function.
7898 This looks for the first argument in the outfiles array's name and
7899 replaces it with the second argument. */
7902 replace_outfile_spec_function (int argc
, const char **argv
)
7905 /* Must have exactly two arguments. */
7909 for (i
= 0; i
< n_infiles
; i
++)
7911 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7912 outfiles
[i
] = xstrdup (argv
[1]);
7917 /* Given two version numbers, compares the two numbers.
7918 A version number must match the regular expression
7919 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7922 compare_version_strings (const char *v1
, const char *v2
)
7927 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7928 REG_EXTENDED
| REG_NOSUB
) != 0)
7930 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7931 if (rresult
== REG_NOMATCH
)
7932 fatal ("invalid version number `%s'", v1
);
7933 else if (rresult
!= 0)
7935 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7936 if (rresult
== REG_NOMATCH
)
7937 fatal ("invalid version number `%s'", v2
);
7938 else if (rresult
!= 0)
7941 return strverscmp (v1
, v2
);
7945 /* version_compare built-in spec function.
7947 This takes an argument of the following form:
7949 <comparison-op> <arg1> [<arg2>] <switch> <result>
7951 and produces "result" if the comparison evaluates to true,
7952 and nothing if it doesn't.
7954 The supported <comparison-op> values are:
7956 >= true if switch is a later (or same) version than arg1
7958 < true if switch is an earlier version than arg1
7960 >< true if switch is arg1 or later, and earlier than arg2
7961 <> true if switch is earlier than arg1 or is arg2 or later
7963 If the switch is not present, the condition is false unless
7964 the first character of the <comparison-op> is '!'.
7967 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7968 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7971 version_compare_spec_function (int argc
, const char **argv
)
7975 const char *switch_value
= NULL
;
7980 fatal ("too few arguments to %%:version-compare");
7981 if (argv
[0][0] == '\0')
7983 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7985 if (argc
!= nargs
+ 3)
7986 fatal ("too many arguments to %%:version-compare");
7988 switch_len
= strlen (argv
[nargs
+ 1]);
7989 for (i
= 0; i
< n_switches
; i
++)
7990 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7991 && check_live_switch (i
, switch_len
))
7992 switch_value
= switches
[i
].part1
+ switch_len
;
7994 if (switch_value
== NULL
)
7998 comp1
= compare_version_strings (switch_value
, argv
[1]);
8000 comp2
= compare_version_strings (switch_value
, argv
[2]);
8002 comp2
= -1; /* This value unused. */
8005 switch (argv
[0][0] << 8 | argv
[0][1])
8007 case '>' << 8 | '=':
8008 result
= comp1
>= 0;
8010 case '!' << 8 | '<':
8011 result
= comp1
>= 0 || switch_value
== NULL
;
8016 case '!' << 8 | '>':
8017 result
= comp1
< 0 || switch_value
== NULL
;
8019 case '>' << 8 | '<':
8020 result
= comp1
>= 0 && comp2
< 0;
8022 case '<' << 8 | '>':
8023 result
= comp1
< 0 || comp2
>= 0;
8027 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8032 return argv
[nargs
+ 2];
8035 /* %:include builtin spec function. This differs from %include in that it
8036 can be nested inside a spec, and thus be conditionalized. It takes
8037 one argument, the filename, and looks for it in the startfile path.
8038 The result is always NULL, i.e. an empty expansion. */
8041 include_spec_function (int argc
, const char **argv
)
8048 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8049 read_specs (file
? file
: argv
[0], FALSE
);
8054 /* %:print-asm-header spec function. Print a banner to say that the
8055 following output is from the assembler. */
8058 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8059 const char **argv ATTRIBUTE_UNUSED
)
8061 printf (_("Assembler options\n=================\n\n"));
8062 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));