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, 2009
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 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
681 : "%{!g0:%{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*:%{!g0:--gstabs}}" ASM_MAP
686 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
687 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--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|params|[^]{joined|separate|undocumented}}[,...]\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 (_(" --version Display compiler version information\n"), stdout
);
3236 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3237 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3238 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3239 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3240 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3241 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3242 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3243 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3245 -print-multi-lib Display the mapping between command line options and\n\
3246 multiple library search directories\n"), stdout
);
3247 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3248 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3249 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3250 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3251 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3252 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3253 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3254 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3255 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3256 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3257 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3258 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3259 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3260 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3261 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3263 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3264 and libraries\n"), stdout
);
3265 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3266 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3267 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3268 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3269 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3270 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3271 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3272 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3273 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3275 -x <language> Specify the language of the following input files\n\
3276 Permissible languages include: c c++ assembler none\n\
3277 'none' means revert to the default behavior of\n\
3278 guessing the language based on the file's extension\n\
3282 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3283 passed on to the various sub-processes invoked by %s. In order to pass\n\
3284 other options on to these processes the -W<letter> options must be used.\n\
3287 /* The rest of the options are displayed by invocations of the various
3292 add_preprocessor_option (const char *option
, int len
)
3294 n_preprocessor_options
++;
3296 if (! preprocessor_options
)
3297 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3299 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3300 n_preprocessor_options
);
3302 preprocessor_options
[n_preprocessor_options
- 1] =
3303 save_string (option
, len
);
3307 add_assembler_option (const char *option
, int len
)
3309 n_assembler_options
++;
3311 if (! assembler_options
)
3312 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3314 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3315 n_assembler_options
);
3317 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3321 add_linker_option (const char *option
, int len
)
3325 if (! linker_options
)
3326 linker_options
= XNEWVEC (char *, n_linker_options
);
3328 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3330 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3333 /* Create the vector `switches' and its contents.
3334 Store its length in `n_switches'. */
3337 process_command (int argc
, const char **argv
)
3342 const char *spec_lang
= 0;
3343 int last_language_n_infiles
;
3344 int lang_n_infiles
= 0;
3345 #ifdef MODIFY_TARGET_NAME
3346 int is_modify_target_name
;
3349 const char *tooldir_prefix
;
3351 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3355 added_libraries
= 0;
3357 /* Figure compiler version from version string. */
3359 compiler_version
= temp1
= xstrdup (version_string
);
3361 for (; *temp1
; ++temp1
)
3370 /* If there is a -V or -b option (or both), process it now, before
3371 trying to interpret the rest of the command line.
3372 Use heuristic that all configuration names must have at least
3373 one dash '-'. This allows us to pass options starting with -b. */
3374 if (argc
> 1 && argv
[1][0] == '-'
3375 && (argv
[1][1] == 'V'
3376 || (argv
[1][1] == 'b'
3377 && (argv
[1][2] == '\0'
3378 || NULL
!= strchr (argv
[1] + 2, '-')))))
3380 const char *new_version
= DEFAULT_TARGET_VERSION
;
3381 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3382 const char *progname
= argv
[0];
3390 while (argc
> 1 && argv
[1][0] == '-'
3391 && (argv
[1][1] == 'V'
3392 || (argv
[1][1] == 'b'
3393 && (argv
[1][2] == '\0'
3394 || NULL
!= strchr (argv
[1] + 2, '-')))))
3396 char opt
= argv
[1][1];
3398 if (argv
[1][2] != '\0')
3411 fatal ("'-%c' option must have argument", opt
);
3418 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3419 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3421 new_argv0
= XDUPVAR (char, progname
, baselen
,
3422 baselen
+ concat_length (new_version
, new_machine
,
3423 "-gcc-", NULL
) + 1);
3424 strcpy (new_argv0
+ baselen
, new_machine
);
3425 strcat (new_argv0
, "-gcc-");
3426 strcat (new_argv0
, new_version
);
3428 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3429 new_argv
[0] = new_argv0
;
3431 errmsg
= pex_one (PEX_SEARCH
, new_argv0
, new_argv
, progname
, NULL
,
3432 NULL
, &status
, &err
);
3437 fatal ("couldn't run '%s': %s", new_argv0
, errmsg
);
3439 fatal ("couldn't run '%s': %s: %s", new_argv0
, errmsg
,
3445 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3446 see if we can create it from the pathname specified in argv[0]. */
3448 gcc_libexec_prefix
= standard_libexec_prefix
;
3450 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3451 if (!gcc_exec_prefix
)
3453 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3454 standard_exec_prefix
);
3455 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3456 standard_bindir_prefix
,
3457 standard_libexec_prefix
);
3458 if (gcc_exec_prefix
)
3459 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3463 /* make_relative_prefix requires a program name, but
3464 GCC_EXEC_PREFIX is typically a directory name with a trailing
3465 / (which is ignored by make_relative_prefix), so append a
3467 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3468 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3469 standard_exec_prefix
,
3470 standard_libexec_prefix
);
3472 /* The path is unrelocated, so fallback to the original setting. */
3473 if (!gcc_libexec_prefix
)
3474 gcc_libexec_prefix
= standard_libexec_prefix
;
3480 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3481 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3482 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3484 if (gcc_exec_prefix
)
3486 int len
= strlen (gcc_exec_prefix
);
3488 if (len
> (int) sizeof ("/lib/gcc/") - 1
3489 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3491 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3492 if (IS_DIR_SEPARATOR (*temp
)
3493 && strncmp (temp
+ 1, "lib", 3) == 0
3494 && IS_DIR_SEPARATOR (temp
[4])
3495 && strncmp (temp
+ 5, "gcc", 3) == 0)
3496 len
-= sizeof ("/lib/gcc/") - 1;
3499 set_std_prefix (gcc_exec_prefix
, len
);
3500 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3501 PREFIX_PRIORITY_LAST
, 0, 0);
3502 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3503 PREFIX_PRIORITY_LAST
, 0, 0);
3506 /* COMPILER_PATH and LIBRARY_PATH have values
3507 that are lists of directory names with colons. */
3509 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3512 const char *startp
, *endp
;
3513 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3515 startp
= endp
= temp
;
3518 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3520 strncpy (nstore
, startp
, endp
- startp
);
3522 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3523 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3525 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3526 nstore
[endp
- startp
+ 1] = 0;
3529 nstore
[endp
- startp
] = 0;
3530 add_prefix (&exec_prefixes
, nstore
, 0,
3531 PREFIX_PRIORITY_LAST
, 0, 0);
3532 add_prefix (&include_prefixes
, nstore
, 0,
3533 PREFIX_PRIORITY_LAST
, 0, 0);
3536 endp
= startp
= endp
+ 1;
3543 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3544 if (temp
&& *cross_compile
== '0')
3546 const char *startp
, *endp
;
3547 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3549 startp
= endp
= temp
;
3552 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3554 strncpy (nstore
, startp
, endp
- startp
);
3556 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3557 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3559 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3560 nstore
[endp
- startp
+ 1] = 0;
3563 nstore
[endp
- startp
] = 0;
3564 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3565 PREFIX_PRIORITY_LAST
, 0, 1);
3568 endp
= startp
= endp
+ 1;
3575 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3576 GET_ENVIRONMENT (temp
, "LPATH");
3577 if (temp
&& *cross_compile
== '0')
3579 const char *startp
, *endp
;
3580 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3582 startp
= endp
= temp
;
3585 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3587 strncpy (nstore
, startp
, endp
- startp
);
3589 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3590 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3592 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3593 nstore
[endp
- startp
+ 1] = 0;
3596 nstore
[endp
- startp
] = 0;
3597 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3598 PREFIX_PRIORITY_LAST
, 0, 1);
3601 endp
= startp
= endp
+ 1;
3608 /* Convert new-style -- options to old-style. */
3609 translate_options (&argc
, (const char *const **) &argv
);
3611 /* Do language-specific adjustment/addition of flags. */
3612 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3614 /* Scan argv twice. Here, the first time, just count how many switches
3615 there will be in their vector, and how many input files in theirs.
3616 Here we also parse the switches that cc itself uses (e.g. -v). */
3618 for (i
= 1; i
< argc
; i
++)
3620 if (! strcmp (argv
[i
], "-dumpspecs"))
3622 struct spec_list
*sl
;
3624 for (sl
= specs
; sl
; sl
= sl
->next
)
3625 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3626 if (link_command_spec
)
3627 printf ("*link_command:\n%s\n\n", link_command_spec
);
3630 else if (! strcmp (argv
[i
], "-dumpversion"))
3632 printf ("%s\n", spec_version
);
3635 else if (! strcmp (argv
[i
], "-dumpmachine"))
3637 printf ("%s\n", spec_machine
);
3640 else if (strcmp (argv
[i
], "-fversion") == 0)
3642 /* translate_options () has turned --version into -fversion. */
3643 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
3645 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
3647 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3648 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3652 else if (strcmp (argv
[i
], "-fhelp") == 0)
3654 /* translate_options () has turned --help into -fhelp. */
3655 print_help_list
= 1;
3657 /* We will be passing a dummy file on to the sub-processes. */
3661 /* CPP driver cannot obtain switch from cc1_options. */
3663 add_preprocessor_option ("--help", 6);
3664 add_assembler_option ("--help", 6);
3665 add_linker_option ("--help", 6);
3667 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3669 /* translate_options () has turned --help into -fhelp. */
3670 print_subprocess_help
= 2;
3672 /* We will be passing a dummy file on to the sub-processes. */
3676 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3678 /* translate_options() has turned --target-help into -ftarget-help. */
3679 print_subprocess_help
= 1;
3681 /* We will be passing a dummy file on to the sub-processes. */
3685 /* CPP driver cannot obtain switch from cc1_options. */
3687 add_preprocessor_option ("--target-help", 13);
3688 add_assembler_option ("--target-help", 13);
3689 add_linker_option ("--target-help", 13);
3691 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3693 pass_exit_codes
= 1;
3696 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3697 print_search_dirs
= 1;
3698 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3699 print_file_name
= "libgcc.a";
3700 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3701 print_file_name
= argv
[i
] + 17;
3702 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3703 print_prog_name
= argv
[i
] + 17;
3704 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3705 print_multi_lib
= 1;
3706 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3707 print_multi_directory
= 1;
3708 else if (! strcmp (argv
[i
], "-print-sysroot"))
3710 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3711 print_multi_os_directory
= 1;
3712 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3713 print_sysroot_headers_suffix
= 1;
3714 else if (! strncmp (argv
[i
], "-Wa,", 4))
3717 /* Pass the rest of this option to the assembler. */
3719 /* Split the argument at commas. */
3721 for (j
= 4; argv
[i
][j
]; j
++)
3722 if (argv
[i
][j
] == ',')
3724 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3728 /* Record the part after the last comma. */
3729 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3731 else if (! strncmp (argv
[i
], "-Wp,", 4))
3734 /* Pass the rest of this option to the preprocessor. */
3736 /* Split the argument at commas. */
3738 for (j
= 4; argv
[i
][j
]; j
++)
3739 if (argv
[i
][j
] == ',')
3741 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3745 /* Record the part after the last comma. */
3746 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3748 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3749 /* The +e options to the C++ front-end. */
3751 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3754 /* Split the argument at commas. */
3755 for (j
= 3; argv
[i
][j
]; j
++)
3756 n_infiles
+= (argv
[i
][j
] == ',');
3758 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3761 fatal ("argument to '-Xlinker' is missing");
3766 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3769 fatal ("argument to '-Xpreprocessor' is missing");
3771 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3773 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3776 fatal ("argument to '-Xassembler' is missing");
3778 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3780 else if (strcmp (argv
[i
], "-l") == 0)
3783 fatal ("argument to '-l' is missing");
3788 else if (strncmp (argv
[i
], "-l", 2) == 0)
3790 else if (strcmp (argv
[i
], "-save-temps") == 0)
3792 save_temps_flag
= 1;
3795 else if (strcmp (argv
[i
], "-combine") == 0)
3800 else if (strcmp (argv
[i
], "-specs") == 0)
3802 struct user_specs
*user
= XNEW (struct user_specs
);
3804 fatal ("argument to '-specs' is missing");
3806 user
->next
= (struct user_specs
*) 0;
3807 user
->filename
= argv
[i
];
3808 if (user_specs_tail
)
3809 user_specs_tail
->next
= user
;
3811 user_specs_head
= user
;
3812 user_specs_tail
= user
;
3814 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3816 struct user_specs
*user
= XNEW (struct user_specs
);
3817 if (strlen (argv
[i
]) == 7)
3818 fatal ("argument to '-specs=' is missing");
3820 user
->next
= (struct user_specs
*) 0;
3821 user
->filename
= argv
[i
] + 7;
3822 if (user_specs_tail
)
3823 user_specs_tail
->next
= user
;
3825 user_specs_head
= user
;
3826 user_specs_tail
= user
;
3828 else if (strcmp (argv
[i
], "-time") == 0)
3830 else if (strcmp (argv
[i
], "-pipe") == 0)
3832 /* -pipe has to go into the switches array as well as
3837 else if (strcmp (argv
[i
], "-wrapper") == 0)
3840 fatal ("argument to '-wrapper' is missing");
3842 wrapper_string
= argv
[i
];
3846 else if (strcmp (argv
[i
], "-###") == 0)
3848 /* This is similar to -v except that there is no execution
3849 of the commands and the echoed arguments are quoted. It
3850 is intended for use in shell scripts to capture the
3851 driver-generated command line. */
3852 verbose_only_flag
++;
3855 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3857 const char *p
= &argv
[i
][1];
3863 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
3868 fatal ("'-%c' must come at the start of the command line", c
);
3876 if (p
[1] == 0 && i
+ 1 == argc
)
3877 fatal ("argument to '-B' is missing");
3883 len
= strlen (value
);
3885 /* Catch the case where the user has forgotten to append a
3886 directory separator to the path. Note, they may be using
3887 -B to add an executable name prefix, eg "i386-elf-", in
3888 order to distinguish between multiple installations of
3889 GCC in the same directory. Hence we must check to see
3890 if appending a directory separator actually makes a
3891 valid directory name. */
3892 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3893 && is_directory (value
, false))
3895 char *tmp
= XNEWVEC (char, len
+ 2);
3896 strcpy (tmp
, value
);
3897 tmp
[len
] = DIR_SEPARATOR
;
3902 add_prefix (&exec_prefixes
, value
, NULL
,
3903 PREFIX_PRIORITY_B_OPT
, 0, 0);
3904 add_prefix (&startfile_prefixes
, value
, NULL
,
3905 PREFIX_PRIORITY_B_OPT
, 0, 0);
3906 add_prefix (&include_prefixes
, value
, NULL
,
3907 PREFIX_PRIORITY_B_OPT
, 0, 0);
3912 case 'v': /* Print our subcommands and print versions. */
3914 /* If they do anything other than exactly `-v', don't set
3915 verbose_flag; rather, continue on to give the error. */
3933 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3938 /* Forward scan, just in case -S or -c is specified
3945 if (argv
[j
][0] == '-')
3947 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3953 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3954 j
+= skip
- (argv
[j
][2] != 0);
3955 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3962 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3964 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3966 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3973 #ifdef MODIFY_TARGET_NAME
3974 is_modify_target_name
= 0;
3976 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3977 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3979 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
3980 + strlen (spec_machine
));
3983 int made_addition
= 0;
3985 is_modify_target_name
= 1;
3986 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3988 if (modify_target
[j
].add_del
== DELETE
3989 && (! strncmp (q
, modify_target
[j
].str
,
3990 strlen (modify_target
[j
].str
))))
3991 p
+= strlen (modify_target
[j
].str
);
3992 else if (modify_target
[j
].add_del
== ADD
3993 && ! made_addition
&& *p
== '-')
3995 for (r
= modify_target
[j
].str
; *r
!= 0; )
4003 spec_machine
= new_name
;
4006 if (is_modify_target_name
)
4012 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4013 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4014 else if (WORD_SWITCH_TAKES_ARG (p
))
4015 i
+= WORD_SWITCH_TAKES_ARG (p
);
4025 if (save_temps_flag
&& use_pipes
)
4027 /* -save-temps overrides -pipe, so that temp files are produced */
4028 if (save_temps_flag
)
4029 error ("warning: -pipe ignored because -save-temps specified");
4033 /* Set up the search paths. We add directories that we expect to
4034 contain GNU Toolchain components before directories specified by
4035 the machine description so that we will find GNU components (like
4036 the GNU assembler) before those of the host system. */
4038 /* If we don't know where the toolchain has been installed, use the
4039 configured-in locations. */
4040 if (!gcc_exec_prefix
)
4043 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4044 PREFIX_PRIORITY_LAST
, 1, 0);
4045 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4046 PREFIX_PRIORITY_LAST
, 2, 0);
4047 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4048 PREFIX_PRIORITY_LAST
, 2, 0);
4050 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4051 PREFIX_PRIORITY_LAST
, 1, 0);
4054 /* If not cross-compiling, search well-known system locations. */
4055 if (*cross_compile
== '0')
4058 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
4059 PREFIX_PRIORITY_LAST
, 2, 0);
4060 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4061 PREFIX_PRIORITY_LAST
, 2, 0);
4063 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4064 PREFIX_PRIORITY_LAST
, 1, 0);
4067 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4068 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4069 dir_separator_str
, NULL
);
4071 /* Look for tools relative to the location from which the driver is
4072 running, or, if that is not available, the configured prefix. */
4074 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4075 spec_machine
, dir_separator_str
,
4076 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4078 add_prefix (&exec_prefixes
,
4079 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4080 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4081 add_prefix (&startfile_prefixes
,
4082 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4083 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4085 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4086 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4087 then consider it to relocate with the rest of the GCC installation
4088 if GCC_EXEC_PREFIX is set.
4089 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4090 if (target_system_root
&& gcc_exec_prefix
)
4092 char *tmp_prefix
= make_relative_prefix (argv
[0],
4093 standard_bindir_prefix
,
4094 target_system_root
);
4095 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4097 target_system_root
= tmp_prefix
;
4098 target_system_root_changed
= 1;
4103 /* More prefixes are enabled in main, after we read the specs file
4104 and determine whether this is cross-compilation or not. */
4106 /* Then create the space for the vectors and scan again. */
4108 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4109 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4112 last_language_n_infiles
= -1;
4114 /* This, time, copy the text of each switch and store a pointer
4115 to the copy in the vector of switches.
4116 Store all the infiles in their vector. */
4118 for (i
= 1; i
< argc
; i
++)
4120 /* Just skip the switches that were handled by the preceding loop. */
4121 #ifdef MODIFY_TARGET_NAME
4122 is_modify_target_name
= 0;
4124 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4125 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4126 is_modify_target_name
= 1;
4128 if (is_modify_target_name
)
4132 if (! strncmp (argv
[i
], "-Wa,", 4))
4134 else if (! strncmp (argv
[i
], "-Wp,", 4))
4136 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4138 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4140 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4142 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4144 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4146 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4148 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4150 else if (! strcmp (argv
[i
], "-print-sysroot"))
4152 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4154 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4156 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4158 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4159 target_system_root_changed
= 1;
4161 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4163 /* Compensate for the +e options to the C++ front-end;
4164 they're there simply for cfront call-compatibility. We do
4165 some magic in default_compilers to pass them down properly.
4166 Note we deliberately start at the `+' here, to avoid passing
4167 -e0 or -e1 down into the linker. */
4168 switches
[n_switches
].part1
= &argv
[i
][0];
4169 switches
[n_switches
].args
= 0;
4170 switches
[n_switches
].live_cond
= 0;
4171 switches
[n_switches
].validated
= 0;
4174 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4177 /* Split the argument at commas. */
4179 for (j
= 4; argv
[i
][j
]; j
++)
4180 if (argv
[i
][j
] == ',')
4182 infiles
[n_infiles
].language
= "*";
4183 infiles
[n_infiles
++].name
4184 = save_string (argv
[i
] + prev
, j
- prev
);
4187 /* Record the part after the last comma. */
4188 infiles
[n_infiles
].language
= "*";
4189 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4191 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4193 infiles
[n_infiles
].language
= "*";
4194 infiles
[n_infiles
++].name
= argv
[++i
];
4196 /* Xassembler and Xpreprocessor were already handled in the first argv
4197 scan, so all we need to do here is ignore them and their argument. */
4198 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4200 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4202 else if (strcmp (argv
[i
], "-l") == 0)
4203 { /* POSIX allows separation of -l and the lib arg;
4204 canonicalize by concatenating -l with its arg */
4205 infiles
[n_infiles
].language
= "*";
4206 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4208 else if (strncmp (argv
[i
], "-l", 2) == 0)
4210 infiles
[n_infiles
].language
= "*";
4211 infiles
[n_infiles
++].name
= argv
[i
];
4213 else if (strcmp (argv
[i
], "-wrapper") == 0)
4215 else if (strcmp (argv
[i
], "-specs") == 0)
4217 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4219 else if (strcmp (argv
[i
], "-time") == 0)
4221 else if (strcmp (argv
[i
], "-###") == 0)
4223 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4225 const char *p
= &argv
[i
][1];
4230 if (p
[1] == 0 && i
+ 1 == argc
)
4231 fatal ("argument to '-x' is missing");
4233 spec_lang
= argv
[++i
];
4236 if (! strcmp (spec_lang
, "none"))
4237 /* Suppress the warning if -xnone comes after the last input
4238 file, because alternate command interfaces like g++ might
4239 find it useful to place -xnone after each input file. */
4242 last_language_n_infiles
= n_infiles
;
4245 switches
[n_switches
].part1
= p
;
4246 /* Deal with option arguments in separate argv elements. */
4247 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4248 || WORD_SWITCH_TAKES_ARG (p
))
4251 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4255 /* Count only the option arguments in separate argv elements. */
4256 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4258 if (i
+ n_args
>= argc
)
4259 fatal ("argument to '-%s' is missing", p
);
4260 switches
[n_switches
].args
4261 = XNEWVEC (const char *, n_args
+ 1);
4263 switches
[n_switches
].args
[j
++] = argv
[++i
];
4264 /* Null-terminate the vector. */
4265 switches
[n_switches
].args
[j
] = 0;
4267 else if (strchr (switches_need_spaces
, c
))
4269 /* On some systems, ld cannot handle some options without
4270 a space. So split the option from its argument. */
4271 char *part1
= XNEWVEC (char, 2);
4275 switches
[n_switches
].part1
= part1
;
4276 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4277 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4278 switches
[n_switches
].args
[1] = 0;
4281 switches
[n_switches
].args
= 0;
4283 switches
[n_switches
].live_cond
= 0;
4284 switches
[n_switches
].validated
= 0;
4285 switches
[n_switches
].ordering
= 0;
4286 /* These are always valid, since gcc.c itself understands the
4287 first four and gfortranspec.c understands -static-libgfortran. */
4288 if (!strcmp (p
, "save-temps")
4289 || !strcmp (p
, "static-libgcc")
4290 || !strcmp (p
, "shared-libgcc")
4291 || !strcmp (p
, "pipe")
4292 || !strcmp (p
, "static-libgfortran"))
4293 switches
[n_switches
].validated
= 1;
4296 char ch
= switches
[n_switches
].part1
[0];
4298 switches
[n_switches
].validated
= 1;
4304 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4305 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4308 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4310 perror_with_name (argv
[i
]);
4315 infiles
[n_infiles
].language
= spec_lang
;
4316 infiles
[n_infiles
++].name
= argv
[i
];
4321 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4322 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4324 /* Ensure we only invoke each subprocess once. */
4325 if (print_subprocess_help
|| print_help_list
)
4329 /* Create a dummy input file, so that we can pass
4330 the help option on to the various sub-processes. */
4331 infiles
[0].language
= "c";
4332 infiles
[0].name
= "help-dummy";
4335 switches
[n_switches
].part1
= 0;
4336 infiles
[n_infiles
].name
= 0;
4339 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4340 and place that in the environment. */
4343 set_collect_gcc_options (void)
4348 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4350 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4351 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4354 for (i
= 0; (int) i
< n_switches
; i
++)
4356 const char *const *args
;
4359 obstack_grow (&collect_obstack
, " ", 1);
4363 /* Ignore elided switches. */
4364 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4367 obstack_grow (&collect_obstack
, "'-", 2);
4368 q
= switches
[i
].part1
;
4369 while ((p
= strchr (q
, '\'')))
4371 obstack_grow (&collect_obstack
, q
, p
- q
);
4372 obstack_grow (&collect_obstack
, "'\\''", 4);
4375 obstack_grow (&collect_obstack
, q
, strlen (q
));
4376 obstack_grow (&collect_obstack
, "'", 1);
4378 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4380 obstack_grow (&collect_obstack
, " '", 2);
4382 while ((p
= strchr (q
, '\'')))
4384 obstack_grow (&collect_obstack
, q
, p
- q
);
4385 obstack_grow (&collect_obstack
, "'\\''", 4);
4388 obstack_grow (&collect_obstack
, q
, strlen (q
));
4389 obstack_grow (&collect_obstack
, "'", 1);
4392 obstack_grow (&collect_obstack
, "\0", 1);
4393 xputenv (XOBFINISH (&collect_obstack
, char *));
4396 /* Process a spec string, accumulating and running commands. */
4398 /* These variables describe the input file name.
4399 input_file_number is the index on outfiles of this file,
4400 so that the output file name can be stored for later use by %o.
4401 input_basename is the start of the part of the input file
4402 sans all directory names, and basename_length is the number
4403 of characters starting there excluding the suffix .c or whatever. */
4405 static const char *input_filename
;
4406 static int input_file_number
;
4407 size_t input_filename_length
;
4408 static int basename_length
;
4409 static int suffixed_basename_length
;
4410 static const char *input_basename
;
4411 static const char *input_suffix
;
4412 #ifndef HOST_LACKS_INODE_NUMBERS
4413 static struct stat input_stat
;
4415 static int input_stat_set
;
4417 /* The compiler used to process the current input file. */
4418 static struct compiler
*input_file_compiler
;
4420 /* These are variables used within do_spec and do_spec_1. */
4422 /* Nonzero if an arg has been started and not yet terminated
4423 (with space, tab or newline). */
4424 static int arg_going
;
4426 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4427 is a temporary file name. */
4428 static int delete_this_arg
;
4430 /* Nonzero means %w has been seen; the next arg to be terminated
4431 is the output file name of this compilation. */
4432 static int this_is_output_file
;
4434 /* Nonzero means %s has been seen; the next arg to be terminated
4435 is the name of a library file and we should try the standard
4436 search dirs for it. */
4437 static int this_is_library_file
;
4439 /* Nonzero means that the input of this command is coming from a pipe. */
4440 static int input_from_pipe
;
4442 /* Nonnull means substitute this for any suffix when outputting a switches
4444 static const char *suffix_subst
;
4446 /* If there is an argument being accumulated, terminate it and store it. */
4449 end_going_arg (void)
4455 obstack_1grow (&obstack
, 0);
4456 string
= XOBFINISH (&obstack
, const char *);
4457 if (this_is_library_file
)
4458 string
= find_file (string
);
4459 store_arg (string
, delete_this_arg
, this_is_output_file
);
4460 if (this_is_output_file
)
4461 outfiles
[input_file_number
] = string
;
4467 /* Parse the WRAPPER string which is a comma separated list of the command line
4468 and insert them into the beginning of argbuf. */
4471 insert_wrapper (const char *wrapper
)
4475 char *buf
= xstrdup (wrapper
);
4484 while ((p
= strchr (p
, ',')) != NULL
);
4486 if (argbuf_index
+ n
>= argbuf_length
)
4488 argbuf_length
= argbuf_length
* 2;
4489 while (argbuf_length
< argbuf_index
+ n
)
4491 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4493 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4494 argbuf
[i
+ n
] = argbuf
[i
];
4507 while ((p
= strchr (p
, ',')) != NULL
);
4508 gcc_assert (i
== n
);
4512 /* Process the spec SPEC and run the commands specified therein.
4513 Returns 0 if the spec is successfully processed; -1 if failed. */
4516 do_spec (const char *spec
)
4520 value
= do_spec_2 (spec
);
4522 /* Force out any unfinished command.
4523 If -pipe, this forces out the last command if it ended in `|'. */
4526 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4529 set_collect_gcc_options ();
4531 if (argbuf_index
> 0)
4539 do_spec_2 (const char *spec
)
4545 delete_this_arg
= 0;
4546 this_is_output_file
= 0;
4547 this_is_library_file
= 0;
4548 input_from_pipe
= 0;
4549 suffix_subst
= NULL
;
4551 result
= do_spec_1 (spec
, 0, NULL
);
4559 /* Process the given spec string and add any new options to the end
4560 of the switches/n_switches array. */
4563 do_option_spec (const char *name
, const char *spec
)
4565 unsigned int i
, value_count
, value_len
;
4566 const char *p
, *q
, *value
;
4567 char *tmp_spec
, *tmp_spec_p
;
4569 if (configure_default_options
[0].name
== NULL
)
4572 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4573 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4575 if (i
== ARRAY_SIZE (configure_default_options
))
4578 value
= configure_default_options
[i
].value
;
4579 value_len
= strlen (value
);
4581 /* Compute the size of the final spec. */
4584 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4590 /* Replace each %(VALUE) by the specified value. */
4591 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4592 + value_count
* (value_len
- strlen ("%(VALUE)")));
4593 tmp_spec_p
= tmp_spec
;
4595 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4597 memcpy (tmp_spec_p
, q
, p
- q
);
4598 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4599 memcpy (tmp_spec_p
, value
, value_len
);
4600 tmp_spec_p
+= value_len
;
4601 q
= p
+ strlen ("%(VALUE)");
4603 strcpy (tmp_spec_p
, q
);
4605 do_self_spec (tmp_spec
);
4608 /* Process the given spec string and add any new options to the end
4609 of the switches/n_switches array. */
4612 do_self_spec (const char *spec
)
4615 do_spec_1 (" ", 0, NULL
);
4617 if (argbuf_index
> 0)
4622 n_switches
+= argbuf_index
;
4623 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches
+ 1);
4625 switches
[n_switches
] = switches
[first
];
4626 for (i
= 0; i
< argbuf_index
; i
++)
4628 struct switchstr
*sw
;
4630 /* Each switch should start with '-'. */
4631 if (argbuf
[i
][0] != '-')
4632 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4634 sw
= &switches
[i
+ first
];
4635 sw
->part1
= &argbuf
[i
][1];
4644 /* Callback for processing %D and %I specs. */
4646 struct spec_path_info
{
4651 bool separate_options
;
4655 spec_path (char *path
, void *data
)
4657 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4661 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4664 if (info
->append_len
!= 0)
4666 len
= strlen (path
);
4667 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4670 if (!is_directory (path
, true))
4673 do_spec_1 (info
->option
, 1, NULL
);
4674 if (info
->separate_options
)
4675 do_spec_1 (" ", 0, NULL
);
4677 if (info
->append_len
== 0)
4679 len
= strlen (path
);
4680 save
= path
[len
- 1];
4681 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4682 path
[len
- 1] = '\0';
4685 do_spec_1 (path
, 1, NULL
);
4686 do_spec_1 (" ", 0, NULL
);
4688 /* Must not damage the original path. */
4689 if (info
->append_len
== 0)
4690 path
[len
- 1] = save
;
4695 /* Process the sub-spec SPEC as a portion of a larger spec.
4696 This is like processing a whole spec except that we do
4697 not initialize at the beginning and we do not supply a
4698 newline by default at the end.
4699 INSWITCH nonzero means don't process %-sequences in SPEC;
4700 in this case, % is treated as an ordinary character.
4701 This is used while substituting switches.
4702 INSWITCH nonzero also causes SPC not to terminate an argument.
4704 Value is zero unless a line was finished
4705 and the command on that line reported an error. */
4708 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4710 const char *p
= spec
;
4716 /* If substituting a switch, treat all chars like letters.
4717 Otherwise, NL, SPC, TAB and % are special. */
4718 switch (inswitch
? 'a' : c
)
4723 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4725 /* A `|' before the newline means use a pipe here,
4726 but only if -pipe was specified.
4727 Otherwise, execute now and don't pass the `|' as an arg. */
4730 input_from_pipe
= 1;
4737 set_collect_gcc_options ();
4739 if (argbuf_index
> 0)
4745 /* Reinitialize for a new command, and for a new argument. */
4748 delete_this_arg
= 0;
4749 this_is_output_file
= 0;
4750 this_is_library_file
= 0;
4751 input_from_pipe
= 0;
4758 obstack_1grow (&obstack
, c
);
4766 /* Reinitialize for a new argument. */
4767 delete_this_arg
= 0;
4768 this_is_output_file
= 0;
4769 this_is_library_file
= 0;
4776 fatal ("spec '%s' invalid", spec
);
4779 obstack_grow (&obstack
, input_basename
, basename_length
);
4784 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4789 delete_this_arg
= 2;
4792 /* Dump out the directories specified with LIBRARY_PATH,
4793 followed by the absolute directories
4794 that we search for startfiles. */
4797 struct spec_path_info info
;
4800 info
.append_len
= 0;
4801 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4802 /* Used on systems which record the specified -L dirs
4803 and use them to search for dynamic linking.
4804 Relative directories always come from -B,
4805 and it is better not to use them for searching
4806 at run time. In particular, stage1 loses. */
4807 info
.omit_relative
= true;
4809 info
.omit_relative
= false;
4811 info
.separate_options
= false;
4813 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4818 /* %efoo means report an error with `foo' as error message
4819 and don't execute any more commands for this file. */
4823 while (*p
!= 0 && *p
!= '\n')
4825 buf
= (char *) alloca (p
- q
+ 1);
4826 strncpy (buf
, q
, p
- q
);
4833 /* %nfoo means report a notice with `foo' on stderr. */
4837 while (*p
!= 0 && *p
!= '\n')
4839 buf
= (char *) alloca (p
- q
+ 1);
4840 strncpy (buf
, q
, p
- q
);
4842 notice ("%s\n", buf
);
4852 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4853 defined, and it is not a directory, and it is
4854 writable, use it. Otherwise, treat this like any
4855 other temporary file. */
4857 if ((!save_temps_flag
)
4858 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4859 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4861 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4862 strlen (HOST_BIT_BUCKET
));
4863 delete_this_arg
= 0;
4868 goto create_temp_file
;
4872 obstack_1grow (&obstack
, '-');
4873 delete_this_arg
= 0;
4876 /* consume suffix */
4877 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4879 if (p
[0] == '%' && p
[1] == 'O')
4884 goto create_temp_file
;
4888 /* consume suffix */
4889 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4891 if (p
[0] == '%' && p
[1] == 'O')
4896 goto create_temp_file
;
4902 struct temp_name
*t
;
4904 const char *suffix
= p
;
4905 char *saved_suffix
= NULL
;
4907 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4909 suffix_length
= p
- suffix
;
4910 if (p
[0] == '%' && p
[1] == 'O')
4913 /* We don't support extra suffix characters after %O. */
4914 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4915 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4916 if (suffix_length
== 0)
4917 suffix
= TARGET_OBJECT_SUFFIX
;
4921 = XNEWVEC (char, suffix_length
4922 + strlen (TARGET_OBJECT_SUFFIX
));
4923 strncpy (saved_suffix
, suffix
, suffix_length
);
4924 strcpy (saved_suffix
+ suffix_length
,
4925 TARGET_OBJECT_SUFFIX
);
4927 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4930 /* If the input_filename has the same suffix specified
4931 for the %g, %u, or %U, and -save-temps is specified,
4932 we could end up using that file as an intermediate
4933 thus clobbering the user's source file (.e.g.,
4934 gcc -save-temps foo.s would clobber foo.s with the
4935 output of cpp0). So check for this condition and
4936 generate a temp file as the intermediate. */
4938 if (save_temps_flag
)
4942 temp_filename_length
= basename_length
+ suffix_length
;
4943 tmp
= (char *) alloca (temp_filename_length
+ 1);
4944 strncpy (tmp
, input_basename
, basename_length
);
4945 strncpy (tmp
+ basename_length
, suffix
, suffix_length
);
4946 tmp
[temp_filename_length
] = '\0';
4947 temp_filename
= tmp
;
4948 if (strcmp (temp_filename
, input_filename
) != 0)
4950 #ifndef HOST_LACKS_INODE_NUMBERS
4951 struct stat st_temp
;
4953 /* Note, set_input() resets input_stat_set to 0. */
4954 if (input_stat_set
== 0)
4956 input_stat_set
= stat (input_filename
, &input_stat
);
4957 if (input_stat_set
>= 0)
4961 /* If we have the stat for the input_filename
4962 and we can do the stat for the temp_filename
4963 then the they could still refer to the same
4964 file if st_dev/st_ino's are the same. */
4965 if (input_stat_set
!= 1
4966 || stat (temp_filename
, &st_temp
) < 0
4967 || input_stat
.st_dev
!= st_temp
.st_dev
4968 || input_stat
.st_ino
!= st_temp
.st_ino
)
4970 /* Just compare canonical pathnames. */
4971 char* input_realname
= lrealpath (input_filename
);
4972 char* temp_realname
= lrealpath (temp_filename
);
4973 bool files_differ
= strcmp (input_realname
, temp_realname
);
4974 free (input_realname
);
4975 free (temp_realname
);
4979 temp_filename
= save_string (temp_filename
,
4980 temp_filename_length
+ 1);
4981 obstack_grow (&obstack
, temp_filename
,
4982 temp_filename_length
);
4984 delete_this_arg
= 0;
4990 /* See if we already have an association of %g/%u/%U and
4992 for (t
= temp_names
; t
; t
= t
->next
)
4993 if (t
->length
== suffix_length
4994 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4995 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4998 /* Make a new association if needed. %u and %j
5000 if (t
== 0 || c
== 'u' || c
== 'j')
5004 t
= XNEW (struct temp_name
);
5005 t
->next
= temp_names
;
5008 t
->length
= suffix_length
;
5011 t
->suffix
= saved_suffix
;
5012 saved_suffix
= NULL
;
5015 t
->suffix
= save_string (suffix
, suffix_length
);
5016 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5017 temp_filename
= make_temp_file (t
->suffix
);
5018 temp_filename_length
= strlen (temp_filename
);
5019 t
->filename
= temp_filename
;
5020 t
->filename_length
= temp_filename_length
;
5024 free (saved_suffix
);
5026 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5027 delete_this_arg
= 1;
5035 for (i
= 0; (int) i
< n_infiles
; i
++)
5036 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
5037 if (infiles
[i
].incompiler
== input_file_compiler
)
5039 store_arg (infiles
[i
].name
, 0, 0);
5040 infiles
[i
].compiled
= true;
5045 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5052 struct spec_path_info info
;
5056 do_spec_1 ("-imultilib", 1, NULL
);
5057 /* Make this a separate argument. */
5058 do_spec_1 (" ", 0, NULL
);
5059 do_spec_1 (multilib_dir
, 1, NULL
);
5060 do_spec_1 (" ", 0, NULL
);
5063 if (gcc_exec_prefix
)
5065 do_spec_1 ("-iprefix", 1, NULL
);
5066 /* Make this a separate argument. */
5067 do_spec_1 (" ", 0, NULL
);
5068 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5069 do_spec_1 (" ", 0, NULL
);
5072 if (target_system_root_changed
||
5073 (target_system_root
&& target_sysroot_hdrs_suffix
))
5075 do_spec_1 ("-isysroot", 1, NULL
);
5076 /* Make this a separate argument. */
5077 do_spec_1 (" ", 0, NULL
);
5078 do_spec_1 (target_system_root
, 1, NULL
);
5079 if (target_sysroot_hdrs_suffix
)
5080 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5081 do_spec_1 (" ", 0, NULL
);
5084 info
.option
= "-isystem";
5085 info
.append
= "include";
5086 info
.append_len
= strlen (info
.append
);
5087 info
.omit_relative
= false;
5088 info
.separate_options
= true;
5090 for_each_path (&include_prefixes
, false, info
.append_len
,
5093 info
.append
= "include-fixed";
5094 if (*sysroot_hdrs_suffix_spec
)
5095 info
.append
= concat (info
.append
, dir_separator_str
,
5096 multilib_dir
, NULL
);
5097 info
.append_len
= strlen (info
.append
);
5098 for_each_path (&include_prefixes
, false, info
.append_len
,
5105 int max
= n_infiles
;
5106 max
+= lang_specific_extra_outfiles
;
5108 if (HAVE_GNU_LD
&& at_file_supplied
)
5110 /* We are going to expand `%o' to `@FILE', where FILE
5111 is a newly-created temporary filename. The filenames
5112 that would usually be expanded in place of %o will be
5113 written to the temporary file. */
5115 char *temp_file
= make_temp_file ("");
5118 int n_files
, j
, status
;
5121 at_argument
= concat ("@", temp_file
, NULL
);
5122 store_arg (at_argument
, 0, 0);
5124 /* Convert OUTFILES into a form suitable for writeargv. */
5126 /* Determine how many are non-NULL. */
5127 for (n_files
= 0, i
= 0; i
< max
; i
++)
5128 n_files
+= outfiles
[i
] != NULL
;
5130 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5132 /* Copy the strings over. */
5133 for (i
= 0, j
= 0; i
< max
; i
++)
5136 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5141 f
= fopen (temp_file
, "w");
5144 fatal ("could not open temporary response file %s",
5147 status
= writeargv (argv
, f
);
5150 fatal ("could not write to temporary response file %s",
5153 status
= fclose (f
);
5156 fatal ("could not close temporary response file %s",
5159 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5162 for (i
= 0; i
< max
; i
++)
5164 store_arg (outfiles
[i
], 0, 0);
5169 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5174 this_is_library_file
= 1;
5178 outfiles
[input_file_number
] = NULL
;
5182 this_is_output_file
= 1;
5187 int cur_index
= argbuf_index
;
5188 /* Handle the {...} following the %W. */
5190 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5191 p
= handle_braces (p
+ 1);
5195 /* If any args were output, mark the last one for deletion
5197 if (argbuf_index
!= cur_index
)
5198 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5202 /* %x{OPTION} records OPTION for %X to output. */
5208 /* Skip past the option value and make a copy. */
5210 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5213 string
= save_string (p1
+ 1, p
- p1
- 2);
5215 /* See if we already recorded this option. */
5216 for (i
= 0; i
< n_linker_options
; i
++)
5217 if (! strcmp (string
, linker_options
[i
]))
5223 /* This option is new; add it. */
5224 add_linker_option (string
, strlen (string
));
5228 /* Dump out the options accumulated previously using %x. */
5230 for (i
= 0; i
< n_linker_options
; i
++)
5232 do_spec_1 (linker_options
[i
], 1, NULL
);
5233 /* Make each accumulated option a separate argument. */
5234 do_spec_1 (" ", 0, NULL
);
5238 /* Dump out the options accumulated previously using -Wa,. */
5240 for (i
= 0; i
< n_assembler_options
; i
++)
5242 do_spec_1 (assembler_options
[i
], 1, NULL
);
5243 /* Make each accumulated option a separate argument. */
5244 do_spec_1 (" ", 0, NULL
);
5248 /* Dump out the options accumulated previously using -Wp,. */
5250 for (i
= 0; i
< n_preprocessor_options
; i
++)
5252 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5253 /* Make each accumulated option a separate argument. */
5254 do_spec_1 (" ", 0, NULL
);
5258 /* Here are digits and numbers that just process
5259 a certain constant string as a spec. */
5262 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5268 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5274 value
= do_spec_1 (asm_spec
, 0, NULL
);
5280 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5287 const char *const spec
5288 = (input_file_compiler
->cpp_spec
5289 ? input_file_compiler
->cpp_spec
5291 value
= do_spec_1 (spec
, 0, NULL
);
5298 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5304 value
= do_spec_1 (link_spec
, 0, NULL
);
5310 value
= do_spec_1 (lib_spec
, 0, NULL
);
5316 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5322 /* We assume there is a directory
5323 separator at the end of this string. */
5324 if (target_system_root
)
5326 obstack_grow (&obstack
, target_system_root
,
5327 strlen (target_system_root
));
5328 if (target_sysroot_suffix
)
5329 obstack_grow (&obstack
, target_sysroot_suffix
,
5330 strlen (target_sysroot_suffix
));
5335 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5340 /* Here we define characters other than letters and digits. */
5343 p
= handle_braces (p
);
5349 p
= handle_spec_function (p
);
5355 obstack_1grow (&obstack
, '%');
5362 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5364 suffix_subst
= save_string (p
- 1, len
+ 1);
5369 /* Henceforth ignore the option(s) matching the pattern
5374 int have_wildcard
= 0;
5377 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5380 if (p
[len
-1] == '*')
5383 for (i
= 0; i
< n_switches
; i
++)
5384 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5385 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5387 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5388 switches
[i
].validated
= 1;
5396 if (soft_matched_part
)
5398 do_spec_1 (soft_matched_part
, 1, NULL
);
5399 do_spec_1 (" ", 0, NULL
);
5402 /* Catch the case where a spec string contains something like
5403 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5404 hand side of the :. */
5405 error ("spec failure: '%%*' has not been initialized by pattern match");
5408 /* Process a string found as the value of a spec given by name.
5409 This feature allows individual machine descriptions
5410 to add and use their own specs.
5411 %[...] modifies -D options the way %P does;
5412 %(...) uses the spec unmodified. */
5414 error ("warning: use of obsolete %%[ operator in specs");
5417 const char *name
= p
;
5418 struct spec_list
*sl
;
5421 /* The string after the S/P is the name of a spec that is to be
5423 while (*p
&& *p
!= ')' && *p
!= ']')
5426 /* See if it's in the list. */
5427 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5428 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5430 name
= *(sl
->ptr_spec
);
5432 notice ("Processing spec %c%s%c, which is '%s'\n",
5433 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5442 value
= do_spec_1 (name
, 0, NULL
);
5448 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5450 const char *y
= name
;
5453 /* Copy all of NAME into BUF, but put __ after
5454 every -D and at the end of each arg. */
5457 if (! strncmp (y
, "-D", 2))
5468 && (*y
== ' ' || *y
== '\t' || *y
== '='
5469 || *y
== '}' || *y
== 0))
5482 value
= do_spec_1 (buf
, 0, NULL
);
5488 /* Discard the closing paren or bracket. */
5495 error ("spec failure: unrecognized spec option '%c'", c
);
5501 /* Backslash: treat next character as ordinary. */
5506 /* Ordinary character: put it into the current argument. */
5507 obstack_1grow (&obstack
, c
);
5511 /* End of string. If we are processing a spec function, we need to
5512 end any pending argument. */
5513 if (processing_spec_function
)
5519 /* Look up a spec function. */
5521 static const struct spec_function
*
5522 lookup_spec_function (const char *name
)
5524 const struct spec_function
*sf
;
5526 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5527 if (strcmp (sf
->name
, name
) == 0)
5533 /* Evaluate a spec function. */
5536 eval_spec_function (const char *func
, const char *args
)
5538 const struct spec_function
*sf
;
5539 const char *funcval
;
5541 /* Saved spec processing context. */
5542 int save_argbuf_index
;
5543 int save_argbuf_length
;
5544 const char **save_argbuf
;
5547 int save_delete_this_arg
;
5548 int save_this_is_output_file
;
5549 int save_this_is_library_file
;
5550 int save_input_from_pipe
;
5551 const char *save_suffix_subst
;
5554 sf
= lookup_spec_function (func
);
5556 fatal ("unknown spec function '%s'", func
);
5558 /* Push the spec processing context. */
5559 save_argbuf_index
= argbuf_index
;
5560 save_argbuf_length
= argbuf_length
;
5561 save_argbuf
= argbuf
;
5563 save_arg_going
= arg_going
;
5564 save_delete_this_arg
= delete_this_arg
;
5565 save_this_is_output_file
= this_is_output_file
;
5566 save_this_is_library_file
= this_is_library_file
;
5567 save_input_from_pipe
= input_from_pipe
;
5568 save_suffix_subst
= suffix_subst
;
5570 /* Create a new spec processing context, and build the function
5574 if (do_spec_2 (args
) < 0)
5575 fatal ("error in args to spec function '%s'", func
);
5577 /* argbuf_index is an index for the next argument to be inserted, and
5578 so contains the count of the args already inserted. */
5580 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5582 /* Pop the spec processing context. */
5583 argbuf_index
= save_argbuf_index
;
5584 argbuf_length
= save_argbuf_length
;
5586 argbuf
= save_argbuf
;
5588 arg_going
= save_arg_going
;
5589 delete_this_arg
= save_delete_this_arg
;
5590 this_is_output_file
= save_this_is_output_file
;
5591 this_is_library_file
= save_this_is_library_file
;
5592 input_from_pipe
= save_input_from_pipe
;
5593 suffix_subst
= save_suffix_subst
;
5598 /* Handle a spec function call of the form:
5602 ARGS is processed as a spec in a separate context and split into an
5603 argument vector in the normal fashion. The function returns a string
5604 containing a spec which we then process in the caller's context, or
5605 NULL if no processing is required. */
5608 handle_spec_function (const char *p
)
5611 const char *endp
, *funcval
;
5614 processing_spec_function
++;
5616 /* Get the function name. */
5617 for (endp
= p
; *endp
!= '\0'; endp
++)
5619 if (*endp
== '(') /* ) */
5621 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5622 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5623 fatal ("malformed spec function name");
5625 if (*endp
!= '(') /* ) */
5626 fatal ("no arguments for spec function");
5627 func
= save_string (p
, endp
- p
);
5630 /* Get the arguments. */
5631 for (count
= 0; *endp
!= '\0'; endp
++)
5640 else if (*endp
== '(') /* ) */
5645 fatal ("malformed spec function arguments");
5646 args
= save_string (p
, endp
- p
);
5649 /* p now points to just past the end of the spec function expression. */
5651 funcval
= eval_spec_function (func
, args
);
5652 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5658 processing_spec_function
--;
5663 /* Inline subroutine of handle_braces. Returns true if the current
5664 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5666 input_suffix_matches (const char *atom
, const char *end_atom
)
5668 return (input_suffix
5669 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5670 && input_suffix
[end_atom
- atom
] == '\0');
5673 /* Subroutine of handle_braces. Returns true if the current
5674 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5676 input_spec_matches (const char *atom
, const char *end_atom
)
5678 return (input_file_compiler
5679 && input_file_compiler
->suffix
5680 && input_file_compiler
->suffix
[0] != '\0'
5681 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5683 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5686 /* Subroutine of handle_braces. Returns true if a switch
5687 matching the atom bracketed by ATOM and END_ATOM appeared on the
5690 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5693 int len
= end_atom
- atom
;
5694 int plen
= starred
? len
: -1;
5696 for (i
= 0; i
< n_switches
; i
++)
5697 if (!strncmp (switches
[i
].part1
, atom
, len
)
5698 && (starred
|| switches
[i
].part1
[len
] == '\0')
5699 && check_live_switch (i
, plen
))
5705 /* Inline subroutine of handle_braces. Mark all of the switches which
5706 match ATOM (extends to END_ATOM; STARRED indicates whether there
5707 was a star after the atom) for later processing. */
5709 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5712 int len
= end_atom
- atom
;
5713 int plen
= starred
? len
: -1;
5715 for (i
= 0; i
< n_switches
; i
++)
5716 if (!strncmp (switches
[i
].part1
, atom
, len
)
5717 && (starred
|| switches
[i
].part1
[len
] == '\0')
5718 && check_live_switch (i
, plen
))
5719 switches
[i
].ordering
= 1;
5722 /* Inline subroutine of handle_braces. Process all the currently
5723 marked switches through give_switch, and clear the marks. */
5725 process_marked_switches (void)
5729 for (i
= 0; i
< n_switches
; i
++)
5730 if (switches
[i
].ordering
== 1)
5732 switches
[i
].ordering
= 0;
5737 /* Handle a %{ ... } construct. P points just inside the leading {.
5738 Returns a pointer one past the end of the brace block, or 0
5739 if we call do_spec_1 and that returns -1. */
5742 handle_braces (const char *p
)
5744 const char *atom
, *end_atom
;
5745 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5746 const char *orig
= p
;
5754 bool a_must_be_last
= false;
5755 bool ordered_set
= false;
5756 bool disjunct_set
= false;
5757 bool disj_matched
= false;
5758 bool disj_starred
= true;
5759 bool n_way_choice
= false;
5760 bool n_way_matched
= false;
5762 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5769 /* Scan one "atom" (S in the description above of %{}, possibly
5770 with '!', '.', '@', ',', or '*' modifiers). */
5772 a_is_suffix
= false;
5773 a_is_starred
= false;
5774 a_is_negated
= false;
5775 a_is_spectype
= false;
5779 p
++, a_is_negated
= true;
5783 p
++, a_is_suffix
= true;
5785 p
++, a_is_spectype
= true;
5788 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5789 || *p
== ',' || *p
== '.' || *p
== '@')
5794 p
++, a_is_starred
= 1;
5800 /* Substitute the switch(es) indicated by the current atom. */
5802 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5803 || a_is_spectype
|| atom
== end_atom
)
5806 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5809 process_marked_switches ();
5813 /* Substitute some text if the current atom appears as a switch
5815 disjunct_set
= true;
5819 if (atom
== end_atom
)
5821 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5822 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5826 /* An empty term may appear as the last choice of an
5827 N-way choice set; it means "otherwise". */
5828 a_must_be_last
= true;
5829 disj_matched
= !n_way_matched
;
5830 disj_starred
= false;
5834 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5838 disj_starred
= false;
5840 /* Don't bother testing this atom if we already have a
5842 if (!disj_matched
&& !n_way_matched
)
5845 a_matched
= input_suffix_matches (atom
, end_atom
);
5846 else if (a_is_spectype
)
5847 a_matched
= input_spec_matches (atom
, end_atom
);
5849 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5851 if (a_matched
!= a_is_negated
)
5853 disj_matched
= true;
5855 d_end_atom
= end_atom
;
5862 /* Found the body, that is, the text to substitute if the
5863 current disjunction matches. */
5864 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5865 disj_matched
&& !n_way_matched
);
5869 /* If we have an N-way choice, reset state for the next
5873 n_way_choice
= true;
5874 n_way_matched
|= disj_matched
;
5875 disj_matched
= false;
5876 disj_starred
= true;
5877 d_atom
= d_end_atom
= NULL
;
5886 while (*p
++ != '}');
5891 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5896 /* Subroutine of handle_braces. Scan and process a brace substitution body
5897 (X in the description of %{} syntax). P points one past the colon;
5898 ATOM and END_ATOM bracket the first atom which was found to be true
5899 (present) in the current disjunction; STARRED indicates whether all
5900 the atoms in the current disjunction were starred (for syntax validation);
5901 MATCHED indicates whether the disjunction matched or not, and therefore
5902 whether or not the body is to be processed through do_spec_1 or just
5903 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5907 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5908 int starred
, int matched
)
5910 const char *body
, *end_body
;
5911 unsigned int nesting_level
;
5912 bool have_subst
= false;
5914 /* Locate the closing } or ;, honoring nested braces.
5915 Trim trailing whitespace. */
5924 if (!--nesting_level
)
5927 else if (*p
== ';' && nesting_level
== 1)
5929 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5931 else if (*p
== '\0')
5937 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5940 if (have_subst
&& !starred
)
5945 /* Copy the substitution body to permanent storage and execute it.
5946 If have_subst is false, this is a simple matter of running the
5947 body through do_spec_1... */
5948 char *string
= save_string (body
, end_body
- body
);
5951 if (do_spec_1 (string
, 0, NULL
) < 0)
5956 /* ... but if have_subst is true, we have to process the
5957 body once for each matching switch, with %* set to the
5958 variant part of the switch. */
5959 unsigned int hard_match_len
= end_atom
- atom
;
5962 for (i
= 0; i
< n_switches
; i
++)
5963 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5964 && check_live_switch (i
, hard_match_len
))
5966 if (do_spec_1 (string
, 0,
5967 &switches
[i
].part1
[hard_match_len
]) < 0)
5969 /* Pass any arguments this switch has. */
5971 suffix_subst
= NULL
;
5979 fatal ("braced spec body '%s' is invalid", body
);
5982 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5983 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5984 spec, or -1 if either exact match or %* is used.
5986 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5987 whose value does not begin with "no-" is obsoleted by the same value
5988 with the "no-", similarly for a switch with the "no-" prefix. */
5991 check_live_switch (int switchnum
, int prefix_length
)
5993 const char *name
= switches
[switchnum
].part1
;
5996 /* In the common case of {<at-most-one-letter>*}, a negating
5997 switch would always match, so ignore that case. We will just
5998 send the conflicting switches to the compiler phase. */
5999 if (prefix_length
>= 0 && prefix_length
<= 1)
6002 /* If we already processed this switch and determined if it was
6003 live or not, return our past determination. */
6004 if (switches
[switchnum
].live_cond
!= 0)
6005 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6006 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0);
6008 /* Now search for duplicate in a manner that depends on the name. */
6012 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6013 if (switches
[i
].part1
[0] == 'O')
6015 switches
[switchnum
].validated
= 1;
6016 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6021 case 'W': case 'f': case 'm':
6022 if (! strncmp (name
+ 1, "no-", 3))
6024 /* We have Xno-YYY, search for XYYY. */
6025 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6026 if (switches
[i
].part1
[0] == name
[0]
6027 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6029 switches
[switchnum
].validated
= 1;
6030 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6036 /* We have XYYY, search for Xno-YYY. */
6037 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6038 if (switches
[i
].part1
[0] == name
[0]
6039 && switches
[i
].part1
[1] == 'n'
6040 && switches
[i
].part1
[2] == 'o'
6041 && switches
[i
].part1
[3] == '-'
6042 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6044 switches
[switchnum
].validated
= 1;
6045 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6052 /* Otherwise the switch is live. */
6053 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6057 /* Pass a switch to the current accumulating command
6058 in the same form that we received it.
6059 SWITCHNUM identifies the switch; it is an index into
6060 the vector of switches gcc received, which is `switches'.
6061 This cannot fail since it never finishes a command line.
6063 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6066 give_switch (int switchnum
, int omit_first_word
)
6068 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6071 if (!omit_first_word
)
6073 do_spec_1 ("-", 0, NULL
);
6074 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6077 if (switches
[switchnum
].args
!= 0)
6080 for (p
= switches
[switchnum
].args
; *p
; p
++)
6082 const char *arg
= *p
;
6084 do_spec_1 (" ", 0, NULL
);
6087 unsigned length
= strlen (arg
);
6090 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6091 if (arg
[length
] == '.')
6093 (CONST_CAST(char *, arg
))[length
] = 0;
6097 do_spec_1 (arg
, 1, NULL
);
6099 (CONST_CAST(char *, arg
))[length
] = '.';
6100 do_spec_1 (suffix_subst
, 1, NULL
);
6103 do_spec_1 (arg
, 1, NULL
);
6107 do_spec_1 (" ", 0, NULL
);
6108 switches
[switchnum
].validated
= 1;
6111 /* Search for a file named NAME trying various prefixes including the
6112 user's -B prefix and some standard ones.
6113 Return the absolute file name found. If nothing is found, return NAME. */
6116 find_file (const char *name
)
6118 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6119 return newname
? newname
: name
;
6122 /* Determine whether a directory exists. If LINKER, return 0 for
6123 certain fixed names not needed by the linker. */
6126 is_directory (const char *path1
, bool linker
)
6133 /* Ensure the string ends with "/.". The resulting path will be a
6134 directory even if the given path is a symbolic link. */
6135 len1
= strlen (path1
);
6136 path
= (char *) alloca (3 + len1
);
6137 memcpy (path
, path1
, len1
);
6139 if (!IS_DIR_SEPARATOR (cp
[-1]))
6140 *cp
++ = DIR_SEPARATOR
;
6144 /* Exclude directories that the linker is known to search. */
6146 && IS_DIR_SEPARATOR (path
[0])
6148 && strncmp (path
+ 1, "lib", 3) == 0)
6150 && strncmp (path
+ 1, "usr", 3) == 0
6151 && IS_DIR_SEPARATOR (path
[4])
6152 && strncmp (path
+ 5, "lib", 3) == 0)))
6155 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6158 /* Set up the various global variables to indicate that we're processing
6159 the input file named FILENAME. */
6162 set_input (const char *filename
)
6166 input_filename
= filename
;
6167 input_filename_length
= strlen (input_filename
);
6169 input_basename
= input_filename
;
6170 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6171 /* Skip drive name so 'x:foo' is handled properly. */
6172 if (input_basename
[1] == ':')
6173 input_basename
+= 2;
6175 for (p
= input_basename
; *p
; p
++)
6176 if (IS_DIR_SEPARATOR (*p
))
6177 input_basename
= p
+ 1;
6179 /* Find a suffix starting with the last period,
6180 and set basename_length to exclude that suffix. */
6181 basename_length
= strlen (input_basename
);
6182 suffixed_basename_length
= basename_length
;
6183 p
= input_basename
+ basename_length
;
6184 while (p
!= input_basename
&& *p
!= '.')
6186 if (*p
== '.' && p
!= input_basename
)
6188 basename_length
= p
- input_basename
;
6189 input_suffix
= p
+ 1;
6194 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6195 we will need to do a stat on the input_filename. The
6196 INPUT_STAT_SET signals that the stat is needed. */
6200 /* On fatal signals, delete all the temporary files. */
6203 fatal_error (int signum
)
6205 signal (signum
, SIG_DFL
);
6206 delete_failure_queue ();
6207 delete_temp_files ();
6208 /* Get the same signal again, this time not handled,
6209 so its normal effect occurs. */
6210 kill (getpid (), signum
);
6213 extern int main (int, char **);
6216 main (int argc
, char **argv
)
6220 int linker_was_run
= 0;
6221 int lang_n_infiles
= 0;
6222 int num_linker_inputs
= 0;
6223 char *explicit_link_files
;
6226 struct user_specs
*uptr
;
6227 char **old_argv
= argv
;
6229 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6230 on ?: in file-scope variable initializations. */
6231 asm_debug
= ASM_DEBUG_SPEC
;
6233 p
= argv
[0] + strlen (argv
[0]);
6234 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6238 xmalloc_set_program_name (programname
);
6240 expandargv (&argc
, &argv
);
6242 /* Determine if any expansions were made. */
6243 if (argv
!= old_argv
)
6244 at_file_supplied
= true;
6246 prune_options (&argc
, &argv
);
6248 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6249 /* Perform host dependent initialization when needed. */
6250 GCC_DRIVER_HOST_INITIALIZATION
;
6253 /* Unlock the stdio streams. */
6254 unlock_std_streams ();
6256 gcc_init_libintl ();
6258 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6259 signal (SIGINT
, fatal_error
);
6261 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6262 signal (SIGHUP
, fatal_error
);
6264 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6265 signal (SIGTERM
, fatal_error
);
6267 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6268 signal (SIGPIPE
, fatal_error
);
6271 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6272 receive the signal. A different setting is inheritable */
6273 signal (SIGCHLD
, SIG_DFL
);
6276 /* Allocate the argument vector. */
6279 obstack_init (&obstack
);
6281 /* Build multilib_select, et. al from the separate lines that make up each
6282 multilib selection. */
6284 const char *const *q
= multilib_raw
;
6287 obstack_init (&multilib_obstack
);
6288 while ((p
= *q
++) != (char *) 0)
6289 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6291 obstack_1grow (&multilib_obstack
, 0);
6292 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6294 q
= multilib_matches_raw
;
6295 while ((p
= *q
++) != (char *) 0)
6296 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6298 obstack_1grow (&multilib_obstack
, 0);
6299 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6301 q
= multilib_exclusions_raw
;
6302 while ((p
= *q
++) != (char *) 0)
6303 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6305 obstack_1grow (&multilib_obstack
, 0);
6306 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6309 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6312 obstack_1grow (&multilib_obstack
, ' ');
6313 obstack_grow (&multilib_obstack
,
6314 multilib_defaults_raw
[i
],
6315 strlen (multilib_defaults_raw
[i
]));
6319 obstack_1grow (&multilib_obstack
, 0);
6320 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6323 /* Set up to remember the pathname of gcc and any options
6324 needed for collect. We use argv[0] instead of programname because
6325 we need the complete pathname. */
6326 obstack_init (&collect_obstack
);
6327 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6328 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6329 xputenv (XOBFINISH (&collect_obstack
, char *));
6331 #ifdef INIT_ENVIRONMENT
6332 /* Set up any other necessary machine specific environment variables. */
6333 xputenv (INIT_ENVIRONMENT
);
6336 /* Make a table of what switches there are (switches, n_switches).
6337 Make a table of specified input files (infiles, n_infiles).
6338 Decode switches that are handled locally. */
6340 process_command (argc
, (const char **) argv
);
6342 /* Initialize the vector of specs to just the default.
6343 This means one element containing 0s, as a terminator. */
6345 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6346 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6347 n_compilers
= n_default_compilers
;
6349 /* Read specs from a file if there is one. */
6351 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6352 spec_version
, dir_separator_str
, NULL
);
6353 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6355 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6356 /* Read the specs file unless it is a default one. */
6357 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6358 read_specs (specs_file
, TRUE
);
6362 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6363 for any override of as, ld and libraries. */
6364 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6365 + strlen (just_machine_suffix
) + sizeof ("specs"));
6367 strcpy (specs_file
, standard_exec_prefix
);
6368 strcat (specs_file
, just_machine_suffix
);
6369 strcat (specs_file
, "specs");
6370 if (access (specs_file
, R_OK
) == 0)
6371 read_specs (specs_file
, TRUE
);
6373 /* Process any configure-time defaults specified for the command line
6374 options, via OPTION_DEFAULT_SPECS. */
6375 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6376 do_option_spec (option_default_specs
[i
].name
,
6377 option_default_specs
[i
].spec
);
6379 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6380 of the command line. */
6382 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6383 do_self_spec (driver_self_specs
[i
]);
6385 /* If not cross-compiling, look for executables in the standard
6387 if (*cross_compile
== '0')
6389 if (*md_exec_prefix
)
6391 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6392 PREFIX_PRIORITY_LAST
, 0, 0);
6396 /* Process sysroot_suffix_spec. */
6397 if (*sysroot_suffix_spec
!= 0
6398 && do_spec_2 (sysroot_suffix_spec
) == 0)
6400 if (argbuf_index
> 1)
6401 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6402 else if (argbuf_index
== 1)
6403 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6406 #ifdef HAVE_LD_SYSROOT
6407 /* Pass the --sysroot option to the linker, if it supports that. If
6408 there is a sysroot_suffix_spec, it has already been processed by
6409 this point, so target_system_root really is the system root we
6411 if (target_system_root
)
6413 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6414 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6415 set_spec ("link", XOBFINISH (&obstack
, const char *));
6419 /* Process sysroot_hdrs_suffix_spec. */
6420 if (*sysroot_hdrs_suffix_spec
!= 0
6421 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6423 if (argbuf_index
> 1)
6424 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6425 else if (argbuf_index
== 1)
6426 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6429 /* Look for startfiles in the standard places. */
6430 if (*startfile_prefix_spec
!= 0
6431 && do_spec_2 (startfile_prefix_spec
) == 0
6432 && do_spec_1 (" ", 0, NULL
) == 0)
6435 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6436 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6437 PREFIX_PRIORITY_LAST
, 0, 1);
6439 /* We should eventually get rid of all these and stick to
6440 startfile_prefix_spec exclusively. */
6441 else if (*cross_compile
== '0' || target_system_root
)
6443 if (*md_startfile_prefix
)
6444 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6445 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6447 if (*md_startfile_prefix_1
)
6448 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6449 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6451 /* If standard_startfile_prefix is relative, base it on
6452 standard_exec_prefix. This lets us move the installed tree
6453 as a unit. If GCC_EXEC_PREFIX is defined, base
6454 standard_startfile_prefix on that as well.
6456 If the prefix is relative, only search it for native compilers;
6457 otherwise we will search a directory containing host libraries. */
6458 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6459 add_sysrooted_prefix (&startfile_prefixes
,
6460 standard_startfile_prefix
, "BINUTILS",
6461 PREFIX_PRIORITY_LAST
, 0, 1);
6462 else if (*cross_compile
== '0')
6464 add_prefix (&startfile_prefixes
,
6465 concat (gcc_exec_prefix
6466 ? gcc_exec_prefix
: standard_exec_prefix
,
6468 standard_startfile_prefix
, NULL
),
6469 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6472 /* Sysrooted prefixes are relocated because target_system_root is
6473 also relocated by gcc_exec_prefix. */
6474 if (*standard_startfile_prefix_1
)
6475 add_sysrooted_prefix (&startfile_prefixes
,
6476 standard_startfile_prefix_1
, "BINUTILS",
6477 PREFIX_PRIORITY_LAST
, 0, 1);
6478 if (*standard_startfile_prefix_2
)
6479 add_sysrooted_prefix (&startfile_prefixes
,
6480 standard_startfile_prefix_2
, "BINUTILS",
6481 PREFIX_PRIORITY_LAST
, 0, 1);
6484 /* Process any user specified specs in the order given on the command
6486 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6488 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6490 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6493 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6494 if (gcc_exec_prefix
)
6495 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6496 spec_version
, dir_separator_str
, NULL
);
6498 /* Now we have the specs.
6499 Set the `valid' bits for switches that match anything in any spec. */
6501 validate_all_switches ();
6503 /* Now that we have the switches and the specs, set
6504 the subdirectory based on the options. */
6505 set_multilib_dir ();
6507 /* Warn about any switches that no pass was interested in. */
6509 for (i
= 0; (int) i
< n_switches
; i
++)
6510 if (! switches
[i
].validated
)
6511 error ("unrecognized option '-%s'", switches
[i
].part1
);
6513 /* Obey some of the options. */
6515 if (print_search_dirs
)
6517 printf (_("install: %s%s\n"),
6518 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6519 gcc_exec_prefix
? "" : machine_suffix
);
6520 printf (_("programs: %s\n"),
6521 build_search_list (&exec_prefixes
, "", false, false));
6522 printf (_("libraries: %s\n"),
6523 build_search_list (&startfile_prefixes
, "", false, true));
6527 if (print_file_name
)
6529 printf ("%s\n", find_file (print_file_name
));
6533 if (print_prog_name
)
6535 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6536 printf ("%s\n", (newname
? newname
: print_prog_name
));
6540 if (print_multi_lib
)
6542 print_multilib_info ();
6546 if (print_multi_directory
)
6548 if (multilib_dir
== NULL
)
6551 printf ("%s\n", multilib_dir
);
6557 if (target_system_root
)
6559 if (target_sysroot_suffix
)
6560 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6562 printf ("%s\n", target_system_root
);
6567 if (print_multi_os_directory
)
6569 if (multilib_os_dir
== NULL
)
6572 printf ("%s\n", multilib_os_dir
);
6576 if (print_sysroot_headers_suffix
)
6578 if (*sysroot_hdrs_suffix_spec
)
6580 printf("%s\n", (target_sysroot_hdrs_suffix
6581 ? target_sysroot_hdrs_suffix
6586 /* The error status indicates that only one set of fixed
6587 headers should be built. */
6588 fatal ("not configured with sysroot headers suffix");
6591 if (print_help_list
)
6597 printf (_("\nFor bug reporting instructions, please see:\n"));
6598 printf ("%s.\n", bug_report_url
);
6603 /* We do not exit here. Instead we have created a fake input file
6604 called 'help-dummy' which needs to be compiled, and we pass this
6605 on the various sub-processes, along with the --help switch.
6606 Ensure their output appears after ours. */
6607 fputc ('\n', stdout
);
6616 notice ("Target: %s\n", spec_machine
);
6617 notice ("Configured with: %s\n", configuration_arguments
);
6619 #ifdef THREAD_MODEL_SPEC
6620 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6621 but there's no point in doing all this processing just to get
6622 thread_model back. */
6623 obstack_init (&obstack
);
6624 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6625 obstack_1grow (&obstack
, '\0');
6626 thrmod
= XOBFINISH (&obstack
, const char *);
6628 thrmod
= thread_model
;
6631 notice ("Thread model: %s\n", thrmod
);
6633 /* compiler_version is truncated at the first space when initialized
6634 from version string, so truncate version_string at the first space
6635 before comparing. */
6636 for (n
= 0; version_string
[n
]; n
++)
6637 if (version_string
[n
] == ' ')
6640 if (! strncmp (version_string
, compiler_version
, n
)
6641 && compiler_version
[n
] == 0)
6642 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
6644 notice ("gcc driver version %s %sexecuting gcc version %s\n",
6645 version_string
, pkgversion_string
, compiler_version
);
6651 if (n_infiles
== added_libraries
)
6652 fatal ("no input files");
6654 /* Make a place to record the compiler output file names
6655 that correspond to the input files. */
6658 i
+= lang_specific_extra_outfiles
;
6659 outfiles
= XCNEWVEC (const char *, i
);
6661 /* Record which files were specified explicitly as link input. */
6663 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6666 combine_inputs
= true;
6668 combine_inputs
= false;
6670 for (i
= 0; (int) i
< n_infiles
; i
++)
6672 const char *name
= infiles
[i
].name
;
6673 struct compiler
*compiler
= lookup_compiler (name
,
6675 infiles
[i
].language
);
6677 if (compiler
&& !(compiler
->combinable
))
6678 combine_inputs
= false;
6680 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6681 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6682 infiles
[i
].incompiler
= compiler
;
6686 input_file_compiler
= compiler
;
6687 infiles
[i
].incompiler
= compiler
;
6691 /* Since there is no compiler for this input file, assume it is a
6693 explicit_link_files
[i
] = 1;
6694 infiles
[i
].incompiler
= NULL
;
6696 infiles
[i
].compiled
= false;
6697 infiles
[i
].preprocessed
= false;
6700 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6701 fatal ("cannot specify -o with -c or -S with multiple files");
6703 if (combine_flag
&& save_temps_flag
)
6705 bool save_combine_inputs
= combine_inputs
;
6706 /* Must do a separate pre-processing pass for C & Objective-C files, to
6707 obtain individual .i files. */
6709 combine_inputs
= false;
6710 for (i
= 0; (int) i
< n_infiles
; i
++)
6712 int this_file_error
= 0;
6714 input_file_number
= i
;
6715 set_input (infiles
[i
].name
);
6716 if (infiles
[i
].incompiler
6717 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6718 input_file_compiler
= infiles
[i
].incompiler
;
6722 if (input_file_compiler
)
6724 if (input_file_compiler
->spec
[0] == '#')
6726 error ("%s: %s compiler not installed on this system",
6727 input_filename
, &input_file_compiler
->spec
[1]);
6728 this_file_error
= 1;
6732 value
= do_spec (input_file_compiler
->spec
);
6733 infiles
[i
].preprocessed
= true;
6734 if (!have_o_argbuf_index
)
6735 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6736 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6737 infiles
[i
].incompiler
6738 = lookup_compiler (infiles
[i
].name
,
6739 strlen (infiles
[i
].name
),
6740 infiles
[i
].language
);
6743 this_file_error
= 1;
6747 if (this_file_error
)
6749 delete_failure_queue ();
6753 clear_failure_queue ();
6755 combine_inputs
= save_combine_inputs
;
6758 for (i
= 0; (int) i
< n_infiles
; i
++)
6760 int this_file_error
= 0;
6762 /* Tell do_spec what to substitute for %i. */
6764 input_file_number
= i
;
6765 set_input (infiles
[i
].name
);
6767 if (infiles
[i
].compiled
)
6770 /* Use the same thing in %o, unless cp->spec says otherwise. */
6772 outfiles
[i
] = input_filename
;
6774 /* Figure out which compiler from the file's suffix. */
6776 if (! combine_inputs
)
6778 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6779 infiles
[i
].language
);
6781 input_file_compiler
= infiles
[i
].incompiler
;
6783 if (input_file_compiler
)
6785 /* Ok, we found an applicable compiler. Run its spec. */
6787 if (input_file_compiler
->spec
[0] == '#')
6789 error ("%s: %s compiler not installed on this system",
6790 input_filename
, &input_file_compiler
->spec
[1]);
6791 this_file_error
= 1;
6795 value
= do_spec (input_file_compiler
->spec
);
6796 infiles
[i
].compiled
= true;
6798 this_file_error
= 1;
6802 /* If this file's name does not contain a recognized suffix,
6803 record it as explicit linker input. */
6806 explicit_link_files
[i
] = 1;
6808 /* Clear the delete-on-failure queue, deleting the files in it
6809 if this compilation failed. */
6811 if (this_file_error
)
6813 delete_failure_queue ();
6816 /* If this compilation succeeded, don't delete those files later. */
6817 clear_failure_queue ();
6820 /* Reset the input file name to the first compile/object file name, for use
6821 with %b in LINK_SPEC. We use the first input file that we can find
6822 a compiler to compile it instead of using infiles.language since for
6823 languages other than C we use aliases that we then lookup later. */
6828 for (i
= 0; i
< n_infiles
; i
++)
6829 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6831 set_input (infiles
[i
].name
);
6836 if (error_count
== 0)
6838 /* Make sure INPUT_FILE_NUMBER points to first available open
6840 input_file_number
= n_infiles
;
6841 if (lang_specific_pre_link ())
6845 /* Determine if there are any linker input files. */
6846 num_linker_inputs
= 0;
6847 for (i
= 0; (int) i
< n_infiles
; i
++)
6848 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6849 num_linker_inputs
++;
6851 /* Run ld to link all the compiler output files. */
6853 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
6855 int tmp
= execution_count
;
6857 /* We'll use ld if we can't find collect2. */
6858 if (! strcmp (linker_name_spec
, "collect2"))
6860 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6862 linker_name_spec
= "ld";
6864 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6866 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6867 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6869 if (print_subprocess_help
== 1)
6871 printf (_("\nLinker options\n==============\n\n"));
6872 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6873 " to the linker.\n\n"));
6876 value
= do_spec (link_command_spec
);
6879 linker_was_run
= (tmp
!= execution_count
);
6882 /* If options said don't run linker,
6883 complain about input files to be given to the linker. */
6885 if (! linker_was_run
&& error_count
== 0)
6886 for (i
= 0; (int) i
< n_infiles
; i
++)
6887 if (explicit_link_files
[i
]
6888 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6889 error ("%s: linker input file unused because linking not done",
6892 /* Delete some or all of the temporary files we made. */
6895 delete_failure_queue ();
6896 delete_temp_files ();
6898 if (print_help_list
)
6900 printf (("\nFor bug reporting instructions, please see:\n"));
6901 printf ("%s\n", bug_report_url
);
6904 return (signal_count
!= 0 ? 2
6905 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6909 /* Find the proper compilation spec for the file name NAME,
6910 whose length is LENGTH. LANGUAGE is the specified language,
6911 or 0 if this file is to be passed to the linker. */
6913 static struct compiler
*
6914 lookup_compiler (const char *name
, size_t length
, const char *language
)
6916 struct compiler
*cp
;
6918 /* If this was specified by the user to be a linker input, indicate that. */
6919 if (language
!= 0 && language
[0] == '*')
6922 /* Otherwise, look for the language, if one is spec'd. */
6925 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6926 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6929 error ("language %s not recognized", language
);
6933 /* Look for a suffix. */
6934 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6936 if (/* The suffix `-' matches only the file name `-'. */
6937 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6938 || (strlen (cp
->suffix
) < length
6939 /* See if the suffix matches the end of NAME. */
6940 && !strcmp (cp
->suffix
,
6941 name
+ length
- strlen (cp
->suffix
))
6946 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6947 /* Look again, but case-insensitively this time. */
6949 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6951 if (/* The suffix `-' matches only the file name `-'. */
6952 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6953 || (strlen (cp
->suffix
) < length
6954 /* See if the suffix matches the end of NAME. */
6955 && ((!strcmp (cp
->suffix
,
6956 name
+ length
- strlen (cp
->suffix
))
6957 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6958 && !strcasecmp (cp
->suffix
,
6959 name
+ length
- strlen (cp
->suffix
)))
6965 if (cp
>= compilers
)
6967 if (cp
->spec
[0] != '@')
6968 /* A non-alias entry: return it. */
6971 /* An alias entry maps a suffix to a language.
6972 Search for the language; pass 0 for NAME and LENGTH
6973 to avoid infinite recursion if language not found. */
6974 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6980 save_string (const char *s
, int len
)
6982 char *result
= XNEWVEC (char, len
+ 1);
6984 memcpy (result
, s
, len
);
6990 pfatal_with_name (const char *name
)
6992 perror_with_name (name
);
6993 delete_temp_files ();
6998 perror_with_name (const char *name
)
7000 error ("%s: %s", name
, xstrerror (errno
));
7003 /* Output an error message and exit. */
7006 fancy_abort (const char *file
, int line
, const char *func
)
7008 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
7011 /* Output an error message and exit. */
7014 fatal_ice (const char *cmsgid
, ...)
7018 va_start (ap
, cmsgid
);
7020 fprintf (stderr
, "%s: ", programname
);
7021 vfprintf (stderr
, _(cmsgid
), ap
);
7023 fprintf (stderr
, "\n");
7024 delete_temp_files ();
7025 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7029 fatal (const char *cmsgid
, ...)
7033 va_start (ap
, cmsgid
);
7035 fprintf (stderr
, "%s: ", programname
);
7036 vfprintf (stderr
, _(cmsgid
), ap
);
7038 fprintf (stderr
, "\n");
7039 delete_temp_files ();
7043 /* The argument is actually c-format, not gcc-internal-format,
7044 but because functions with identical names are used through
7045 the rest of the compiler with gcc-internal-format, we just
7046 need to hope all users of these functions use the common
7047 subset between c-format and gcc-internal-format. */
7050 error (const char *gmsgid
, ...)
7054 va_start (ap
, gmsgid
);
7055 fprintf (stderr
, "%s: ", programname
);
7056 vfprintf (stderr
, _(gmsgid
), ap
);
7059 fprintf (stderr
, "\n");
7063 notice (const char *cmsgid
, ...)
7067 va_start (ap
, cmsgid
);
7068 vfprintf (stderr
, _(cmsgid
), ap
);
7073 validate_switches_from_spec (const char *spec
)
7075 const char *p
= spec
;
7078 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7079 /* We have a switch spec. */
7080 p
= validate_switches (p
+ 1);
7084 validate_all_switches (void)
7086 struct compiler
*comp
;
7087 struct spec_list
*spec
;
7089 for (comp
= compilers
; comp
->spec
; comp
++)
7090 validate_switches_from_spec (comp
->spec
);
7092 /* Look through the linked list of specs read from the specs file. */
7093 for (spec
= specs
; spec
; spec
= spec
->next
)
7094 validate_switches_from_spec (*spec
->ptr_spec
);
7096 validate_switches_from_spec (link_command_spec
);
7099 /* Look at the switch-name that comes after START
7100 and mark as valid all supplied switches that match it. */
7103 validate_switches (const char *start
)
7105 const char *p
= start
;
7109 bool suffix
= false;
7110 bool starred
= false;
7112 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7121 if (*p
== '.' || *p
== ',')
7125 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7126 || *p
== ',' || *p
== '.' || *p
== '@')
7131 starred
= true, p
++;
7137 /* Mark all matching switches as valid. */
7138 for (i
= 0; i
< n_switches
; i
++)
7139 if (!strncmp (switches
[i
].part1
, atom
, len
)
7140 && (starred
|| switches
[i
].part1
[len
] == 0))
7141 switches
[i
].validated
= 1;
7145 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7148 if (*p
&& p
[-1] == ':')
7150 while (*p
&& *p
!= ';' && *p
!= '}')
7155 if (*p
== '{' || *p
== '<')
7156 p
= validate_switches (p
+1);
7157 else if (p
[0] == 'W' && p
[1] == '{')
7158 p
= validate_switches (p
+2);
7165 if (*p
&& p
[-1] == ';')
7179 static struct mdswitchstr
*mdswitches
;
7180 static int n_mdswitches
;
7182 /* Check whether a particular argument was used. The first time we
7183 canonicalize the switches to keep only the ones we care about. */
7186 used_arg (const char *p
, int len
)
7191 const char *replace
;
7196 static struct mswitchstr
*mswitches
;
7197 static int n_mswitches
;
7202 struct mswitchstr
*matches
;
7206 /* Break multilib_matches into the component strings of string
7207 and replacement string. */
7208 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7213 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7215 q
= multilib_matches
;
7224 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7228 matches
[i
].len
= q
- matches
[i
].str
;
7230 matches
[i
].replace
= ++q
;
7231 while (*q
!= ';' && *q
!= '\0')
7234 goto invalid_matches
;
7237 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7243 /* Now build a list of the replacement string for switches that we care
7244 about. Make sure we allocate at least one entry. This prevents
7245 xmalloc from calling fatal, and prevents us from re-executing this
7248 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7249 for (i
= 0; i
< n_switches
; i
++)
7250 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7252 int xlen
= strlen (switches
[i
].part1
);
7253 for (j
= 0; j
< cnt
; j
++)
7254 if (xlen
== matches
[j
].len
7255 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7257 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7258 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7259 mswitches
[n_mswitches
].replace
= (char *) 0;
7260 mswitches
[n_mswitches
].rep_len
= 0;
7266 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7267 on the command line nor any options mutually incompatible with
7269 for (i
= 0; i
< n_mdswitches
; i
++)
7273 for (q
= multilib_options
; *q
!= '\0'; q
++)
7279 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7280 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7282 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7289 if (*q
!= ' ' && *q
!= '\0')
7291 while (*r
!= ' ' && *r
!= '\0')
7294 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7297 if (used_arg (r
, q
- r
))
7302 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7303 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7304 mswitches
[n_mswitches
].replace
= (char *) 0;
7305 mswitches
[n_mswitches
].rep_len
= 0;
7318 for (i
= 0; i
< n_mswitches
; i
++)
7319 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7326 default_arg (const char *p
, int len
)
7330 for (i
= 0; i
< n_mdswitches
; i
++)
7331 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7337 /* Work out the subdirectory to use based on the options. The format of
7338 multilib_select is a list of elements. Each element is a subdirectory
7339 name followed by a list of options followed by a semicolon. The format
7340 of multilib_exclusions is the same, but without the preceding
7341 directory. First gcc will check the exclusions, if none of the options
7342 beginning with an exclamation point are present, and all of the other
7343 options are present, then we will ignore this completely. Passing
7344 that, gcc will consider each multilib_select in turn using the same
7345 rules for matching the options. If a match is found, that subdirectory
7349 set_multilib_dir (void)
7352 unsigned int this_path_len
;
7353 const char *this_path
, *this_arg
;
7354 const char *start
, *end
;
7356 int ok
, ndfltok
, first
;
7359 start
= multilib_defaults
;
7360 while (*start
== ' ' || *start
== '\t')
7362 while (*start
!= '\0')
7365 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7367 while (*start
== ' ' || *start
== '\t')
7375 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7376 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7378 while (*start
== ' ' || *start
== '\t')
7384 for (end
= start
+ 1;
7385 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7388 obstack_grow (&multilib_obstack
, start
, end
- start
);
7389 obstack_1grow (&multilib_obstack
, 0);
7390 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7391 mdswitches
[i
++].len
= end
- start
;
7398 p
= multilib_exclusions
;
7401 /* Ignore newlines. */
7408 /* Check the arguments. */
7415 fatal ("multilib exclusions '%s' is invalid",
7416 multilib_exclusions
);
7426 while (*p
!= ' ' && *p
!= ';')
7429 goto invalid_exclusions
;
7433 if (*this_arg
!= '!')
7441 ok
= used_arg (this_arg
, p
- this_arg
);
7456 p
= multilib_select
;
7459 /* Ignore newlines. */
7466 /* Get the initial path. */
7473 fatal ("multilib select '%s' is invalid",
7478 this_path_len
= p
- this_path
;
7480 /* Check the arguments. */
7487 goto invalid_select
;
7496 while (*p
!= ' ' && *p
!= ';')
7499 goto invalid_select
;
7503 if (*this_arg
!= '!')
7511 /* If this is a default argument, we can just ignore it.
7512 This is true even if this_arg begins with '!'. Beginning
7513 with '!' does not mean that this argument is necessarily
7514 inappropriate for this library: it merely means that
7515 there is a more specific library which uses this
7516 argument. If this argument is a default, we need not
7517 consider that more specific library. */
7518 ok
= used_arg (this_arg
, p
- this_arg
);
7525 if (default_arg (this_arg
, p
- this_arg
))
7534 if (this_path_len
!= 1
7535 || this_path
[0] != '.')
7537 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7540 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7541 new_multilib_dir
[this_path_len
] = '\0';
7542 q
= strchr (new_multilib_dir
, ':');
7545 multilib_dir
= new_multilib_dir
;
7552 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7554 while (q
< end
&& *q
!= ':')
7558 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7559 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7560 new_multilib_os_dir
[end
- q
- 1] = '\0';
7561 multilib_os_dir
= new_multilib_os_dir
;
7569 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7570 && strcmp (multilib_os_dir
, ".") == 0)
7572 free (CONST_CAST (char *, multilib_os_dir
));
7573 multilib_os_dir
= NULL
;
7575 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7576 multilib_os_dir
= multilib_dir
;
7579 /* Print out the multiple library subdirectory selection
7580 information. This prints out a series of lines. Each line looks
7581 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7582 required. Only the desired options are printed out, the negative
7583 matches. The options are print without a leading dash. There are
7584 no spaces to make it easy to use the information in the shell.
7585 Each subdirectory is printed only once. This assumes the ordering
7586 generated by the genmultilib script. Also, we leave out ones that match
7590 print_multilib_info (void)
7592 const char *p
= multilib_select
;
7593 const char *last_path
= 0, *this_path
;
7595 unsigned int last_path_len
= 0;
7600 /* Ignore newlines. */
7607 /* Get the initial path. */
7614 fatal ("multilib select '%s' is invalid", multilib_select
);
7620 /* When --disable-multilib was used but target defines
7621 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7622 to find multilib_os_dir, so skip them from output. */
7623 if (this_path
[0] == '.' && this_path
[1] == ':')
7626 /* Check for matches with the multilib_exclusions. We don't bother
7627 with the '!' in either list. If any of the exclusion rules match
7628 all of its options with the select rule, we skip it. */
7630 const char *e
= multilib_exclusions
;
7631 const char *this_arg
;
7636 /* Ignore newlines. */
7643 /* Check the arguments. */
7652 fatal ("multilib exclusion '%s' is invalid",
7653 multilib_exclusions
);
7664 while (*e
!= ' ' && *e
!= ';')
7667 goto invalid_exclusion
;
7675 int len
= e
- this_arg
;
7678 goto invalid_select
;
7682 while (*q
!= ' ' && *q
!= ';')
7685 goto invalid_select
;
7689 if (! strncmp (arg
, this_arg
,
7690 (len
< q
- arg
) ? q
- arg
: len
)
7691 || default_arg (this_arg
, e
- this_arg
))
7721 /* If this is a duplicate, skip it. */
7722 skip
= (last_path
!= 0
7723 && (unsigned int) (p
- this_path
) == last_path_len
7724 && ! strncmp (last_path
, this_path
, last_path_len
));
7726 last_path
= this_path
;
7727 last_path_len
= p
- this_path
;
7730 /* If this directory requires any default arguments, we can skip
7731 it. We will already have printed a directory identical to
7732 this one which does not require that default argument. */
7743 goto invalid_select
;
7750 while (*q
!= ' ' && *q
!= ';')
7753 goto invalid_select
;
7758 && default_arg (arg
, q
- arg
))
7773 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7784 goto invalid_select
;
7792 use_arg
= *p
!= '!';
7797 while (*p
!= ' ' && *p
!= ';')
7800 goto invalid_select
;
7812 /* If there are extra options, print them now. */
7813 if (multilib_extra
&& *multilib_extra
)
7815 int print_at
= TRUE
;
7818 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7839 /* getenv built-in spec function.
7841 Returns the value of the environment variable given by its first
7842 argument, concatenated with the second argument. If the
7843 environment variable is not defined, a fatal error is issued. */
7846 getenv_spec_function (int argc
, const char **argv
)
7856 value
= getenv (argv
[0]);
7858 fatal ("environment variable \"%s\" not defined", argv
[0]);
7860 /* We have to escape every character of the environment variable so
7861 they are not interpreted as active spec characters. A
7862 particularly painful case is when we are reading a variable
7863 holding a windows path complete with \ separators. */
7864 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7865 result
= XNEWVAR (char, len
);
7866 for (ptr
= result
; *value
; ptr
+= 2)
7872 strcpy (ptr
, argv
[1]);
7877 /* if-exists built-in spec function.
7879 Checks to see if the file specified by the absolute pathname in
7880 ARGS exists. Returns that pathname if found.
7882 The usual use for this function is to check for a library file
7883 (whose name has been expanded with %s). */
7886 if_exists_spec_function (int argc
, const char **argv
)
7888 /* Must have only one argument. */
7889 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7895 /* if-exists-else built-in spec function.
7897 This is like if-exists, but takes an additional argument which
7898 is returned if the first argument does not exist. */
7901 if_exists_else_spec_function (int argc
, const char **argv
)
7903 /* Must have exactly two arguments. */
7907 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7913 /* replace-outfile built-in spec function.
7915 This looks for the first argument in the outfiles array's name and
7916 replaces it with the second argument. */
7919 replace_outfile_spec_function (int argc
, const char **argv
)
7922 /* Must have exactly two arguments. */
7926 for (i
= 0; i
< n_infiles
; i
++)
7928 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7929 outfiles
[i
] = xstrdup (argv
[1]);
7934 /* Given two version numbers, compares the two numbers.
7935 A version number must match the regular expression
7936 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7939 compare_version_strings (const char *v1
, const char *v2
)
7944 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7945 REG_EXTENDED
| REG_NOSUB
) != 0)
7947 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7948 if (rresult
== REG_NOMATCH
)
7949 fatal ("invalid version number `%s'", v1
);
7950 else if (rresult
!= 0)
7952 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7953 if (rresult
== REG_NOMATCH
)
7954 fatal ("invalid version number `%s'", v2
);
7955 else if (rresult
!= 0)
7958 return strverscmp (v1
, v2
);
7962 /* version_compare built-in spec function.
7964 This takes an argument of the following form:
7966 <comparison-op> <arg1> [<arg2>] <switch> <result>
7968 and produces "result" if the comparison evaluates to true,
7969 and nothing if it doesn't.
7971 The supported <comparison-op> values are:
7973 >= true if switch is a later (or same) version than arg1
7975 < true if switch is an earlier version than arg1
7977 >< true if switch is arg1 or later, and earlier than arg2
7978 <> true if switch is earlier than arg1 or is arg2 or later
7980 If the switch is not present, the condition is false unless
7981 the first character of the <comparison-op> is '!'.
7984 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7985 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7988 version_compare_spec_function (int argc
, const char **argv
)
7992 const char *switch_value
= NULL
;
7997 fatal ("too few arguments to %%:version-compare");
7998 if (argv
[0][0] == '\0')
8000 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8002 if (argc
!= nargs
+ 3)
8003 fatal ("too many arguments to %%:version-compare");
8005 switch_len
= strlen (argv
[nargs
+ 1]);
8006 for (i
= 0; i
< n_switches
; i
++)
8007 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8008 && check_live_switch (i
, switch_len
))
8009 switch_value
= switches
[i
].part1
+ switch_len
;
8011 if (switch_value
== NULL
)
8015 comp1
= compare_version_strings (switch_value
, argv
[1]);
8017 comp2
= compare_version_strings (switch_value
, argv
[2]);
8019 comp2
= -1; /* This value unused. */
8022 switch (argv
[0][0] << 8 | argv
[0][1])
8024 case '>' << 8 | '=':
8025 result
= comp1
>= 0;
8027 case '!' << 8 | '<':
8028 result
= comp1
>= 0 || switch_value
== NULL
;
8033 case '!' << 8 | '>':
8034 result
= comp1
< 0 || switch_value
== NULL
;
8036 case '>' << 8 | '<':
8037 result
= comp1
>= 0 && comp2
< 0;
8039 case '<' << 8 | '>':
8040 result
= comp1
< 0 || comp2
>= 0;
8044 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8049 return argv
[nargs
+ 2];
8052 /* %:include builtin spec function. This differs from %include in that it
8053 can be nested inside a spec, and thus be conditionalized. It takes
8054 one argument, the filename, and looks for it in the startfile path.
8055 The result is always NULL, i.e. an empty expansion. */
8058 include_spec_function (int argc
, const char **argv
)
8065 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8066 read_specs (file
? file
: argv
[0], FALSE
);
8071 /* %:print-asm-header spec function. Print a banner to say that the
8072 following output is from the assembler. */
8075 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8076 const char **argv ATTRIBUTE_UNUSED
)
8078 printf (_("Assembler options\n=================\n\n"));
8079 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));