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 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" ASM_MAP \
681 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}" ASM_MAP)
683 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
684 # define ASM_DEBUG_SPEC "%{g*:--gstabs}" ASM_MAP
686 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
687 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" ASM_MAP
691 #ifndef ASM_DEBUG_SPEC
692 # define ASM_DEBUG_SPEC ""
695 /* Here is the spec for running the linker, after compiling all files. */
697 /* This is overridable by the target in case they need to specify the
698 -lgcc and -lc order specially, yet not require them to override all
699 of LINK_COMMAND_SPEC. */
700 #ifndef LINK_GCC_C_SEQUENCE_SPEC
701 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
704 #ifndef LINK_SSP_SPEC
705 #ifdef TARGET_LIBC_PROVIDES_SSP
706 #define LINK_SSP_SPEC "%{fstack-protector:}"
708 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
712 #ifndef LINK_PIE_SPEC
714 #define LINK_PIE_SPEC "%{pie:-pie} "
716 #define LINK_PIE_SPEC "%{pie:} "
720 /* -u* was put back because both BSD and SysV seem to support it. */
721 /* %{static:} simply prevents an error message if the target machine
722 doesn't handle -static. */
723 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
724 scripts which exist in user specified directories, or in standard
726 #ifndef LINK_COMMAND_SPEC
727 #define LINK_COMMAND_SPEC "\
728 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
729 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
730 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
731 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
732 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
733 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
734 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
735 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
738 #ifndef LINK_LIBGCC_SPEC
739 /* Generate -L options for startfile prefix list. */
740 # define LINK_LIBGCC_SPEC "%D"
743 #ifndef STARTFILE_PREFIX_SPEC
744 # define STARTFILE_PREFIX_SPEC ""
748 # define SYSROOT_SPEC "--sysroot=%R"
751 #ifndef SYSROOT_SUFFIX_SPEC
752 # define SYSROOT_SUFFIX_SPEC ""
755 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
756 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
759 static const char *asm_debug
;
760 static const char *cpp_spec
= CPP_SPEC
;
761 static const char *cc1_spec
= CC1_SPEC
;
762 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
763 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
764 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
765 static const char *asm_spec
= ASM_SPEC
;
766 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
767 static const char *link_spec
= LINK_SPEC
;
768 static const char *lib_spec
= LIB_SPEC
;
769 static const char *mfwrap_spec
= MFWRAP_SPEC
;
770 static const char *mflib_spec
= MFLIB_SPEC
;
771 static const char *link_gomp_spec
= "";
772 static const char *libgcc_spec
= LIBGCC_SPEC
;
773 static const char *endfile_spec
= ENDFILE_SPEC
;
774 static const char *startfile_spec
= STARTFILE_SPEC
;
775 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
776 static const char *linker_name_spec
= LINKER_NAME
;
777 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
778 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
779 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
780 static const char *sysroot_spec
= SYSROOT_SPEC
;
781 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
782 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
784 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
785 There should be no need to override these in target dependent files,
786 but we need to copy them to the specs file so that newer versions
787 of the GCC driver can correctly drive older tool chains with the
788 appropriate -B options. */
790 /* When cpplib handles traditional preprocessing, get rid of this, and
791 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
792 that we default the front end language better. */
793 static const char *trad_capable_cpp
=
794 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
796 /* We don't wrap .d files in %W{} since a missing .d file, and
797 therefore no dependency entry, confuses make into thinking a .o
798 file that happens to exist is up-to-date. */
799 static const char *cpp_unique_options
=
800 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
801 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
802 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
803 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
804 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
805 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
806 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
807 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
808 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
809 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
812 /* This contains cpp options which are common with cc1_options and are passed
813 only when preprocessing only to avoid duplication. We pass the cc1 spec
814 options to the preprocessor so that it the cc1 spec may manipulate
815 options used to set target flags. Those special target flags settings may
816 in turn cause preprocessor symbols to be defined specially. */
817 static const char *cpp_options
=
818 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
819 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
820 %{undef} %{save-temps:-fpch-preprocess}";
822 /* This contains cpp options which are not passed when the preprocessor
823 output will be used by another program. */
824 static const char *cpp_debug_options
= "%{d*}";
826 /* NB: This is shared amongst all front-ends, except for Ada. */
827 static const char *cc1_options
=
828 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
829 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
830 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
831 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
832 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
833 %{Qn:-fno-ident} %{--help:--help}\
834 %{--target-help:--target-help}\
835 %{--help=*:--help=%(VALUE)}\
836 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
837 %{fsyntax-only:-o %j} %{-param*}\
838 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
839 %{coverage:-fprofile-arcs -ftest-coverage}";
841 static const char *asm_options
=
842 "%{--target-help:%:print-asm-header()} "
844 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
845 to the assembler equivalents. */
846 "%{v} %{w:-W} %{I*} "
848 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
850 static const char *invoke_as
=
851 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
852 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
854 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
857 /* Some compilers have limits on line lengths, and the multilib_select
858 and/or multilib_matches strings can be very long, so we build them at
860 static struct obstack multilib_obstack
;
861 static const char *multilib_select
;
862 static const char *multilib_matches
;
863 static const char *multilib_defaults
;
864 static const char *multilib_exclusions
;
866 /* Check whether a particular argument is a default argument. */
868 #ifndef MULTILIB_DEFAULTS
869 #define MULTILIB_DEFAULTS { "" }
872 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
874 #ifndef DRIVER_SELF_SPECS
875 #define DRIVER_SELF_SPECS ""
878 /* Adding -fopenmp should imply pthreads. This is particularly important
879 for targets that use different start files and suchlike. */
880 #ifndef GOMP_SELF_SPECS
881 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
884 static const char *const driver_self_specs
[] = {
885 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
888 #ifndef OPTION_DEFAULT_SPECS
889 #define OPTION_DEFAULT_SPECS { "", "" }
898 static const struct default_spec
899 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
903 struct user_specs
*next
;
904 const char *filename
;
907 static struct user_specs
*user_specs_head
, *user_specs_tail
;
909 #ifndef SWITCH_TAKES_ARG
910 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
913 #ifndef WORD_SWITCH_TAKES_ARG
914 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
917 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
918 /* This defines which switches stop a full compilation. */
919 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
920 ((CHAR) == 'c' || (CHAR) == 'S')
922 #ifndef SWITCH_CURTAILS_COMPILATION
923 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
924 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
928 /* Record the mapping from file suffixes for compilation specs. */
932 const char *suffix
; /* Use this compiler for input files
933 whose names end in this suffix. */
935 const char *spec
; /* To use this compiler, run this spec. */
937 const char *cpp_spec
; /* If non-NULL, substitute this spec
938 for `%C', rather than the usual
940 const int combinable
; /* If nonzero, compiler can deal with
941 multiple source files at once (IMA). */
942 const int needs_preprocessing
; /* If nonzero, source files need to
943 be run through a preprocessor. */
946 /* Pointer to a vector of `struct compiler' that gives the spec for
947 compiling a file, based on its suffix.
948 A file that does not end in any of these suffixes will be passed
949 unchanged to the loader and nothing else will be done to it.
951 An entry containing two 0s is used to terminate the vector.
953 If multiple entries match a file, the last matching one is used. */
955 static struct compiler
*compilers
;
957 /* Number of entries in `compilers', not counting the null terminator. */
959 static int n_compilers
;
961 /* The default list of file name suffixes and their compilation specs. */
963 static const struct compiler default_compilers
[] =
965 /* Add lists of suffixes of known languages here. If those languages
966 were not present when we built the driver, we will hit these copies
967 and be given a more meaningful error than "file not used since
968 linking is not done". */
969 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
970 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
971 {".mii", "#Objective-C++", 0, 0, 0},
972 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
973 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
974 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
975 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
976 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
977 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
978 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
979 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
980 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
981 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
982 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
983 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
984 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
985 {".r", "#Ratfor", 0, 0, 0},
986 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
987 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
988 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
989 /* Next come the entries for C. */
990 {".c", "@c", 0, 1, 1},
992 /* cc1 has an integrated ISO C preprocessor. We should invoke the
993 external preprocessor if -save-temps is given. */
994 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
996 %{traditional|ftraditional:\
997 %eGNU C no longer supports -traditional without -E}\
999 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1000 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1001 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1003 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1004 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1005 %{!fsyntax-only:%(invoke_as)}} \
1007 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1008 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
1009 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1010 cc1 %(cpp_unique_options) %(cc1_options)}}\
1011 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1013 "%{!E:%e-E or -x required when input is from standard input}\
1014 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1015 {".h", "@c-header", 0, 0, 0},
1017 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1018 external preprocessor if -save-temps is given. */
1019 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1021 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1022 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
1023 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
1025 -o %g.s %{!o*:--output-pch=%i.gch}\
1026 %W{o*:--output-pch=%*}%V}\
1027 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1028 cc1 %(cpp_unique_options) %(cc1_options)\
1029 -o %g.s %{!o*:--output-pch=%i.gch}\
1030 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1031 {".i", "@cpp-output", 0, 1, 0},
1033 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1034 {".s", "@assembler", 0, 1, 0},
1036 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1037 {".sx", "@assembler-with-cpp", 0, 1, 0},
1038 {".S", "@assembler-with-cpp", 0, 1, 0},
1039 {"@assembler-with-cpp",
1040 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1041 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1042 %{E|M|MM:%(cpp_debug_options)}\
1043 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1044 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1046 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1047 %{E|M|MM:%(cpp_debug_options)}\
1048 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1049 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1054 /* Mark end of table. */
1058 /* Number of elements in default_compilers, not counting the terminator. */
1060 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1062 /* A vector of options to give to the linker.
1063 These options are accumulated by %x,
1064 and substituted into the linker command with %X. */
1065 static int n_linker_options
;
1066 static char **linker_options
;
1068 /* A vector of options to give to the assembler.
1069 These options are accumulated by -Wa,
1070 and substituted into the assembler command with %Y. */
1071 static int n_assembler_options
;
1072 static char **assembler_options
;
1074 /* A vector of options to give to the preprocessor.
1075 These options are accumulated by -Wp,
1076 and substituted into the preprocessor command with %Z. */
1077 static int n_preprocessor_options
;
1078 static char **preprocessor_options
;
1080 /* Define how to map long options into short ones. */
1082 /* This structure describes one mapping. */
1085 /* The long option's name. */
1086 const char *const name
;
1087 /* The equivalent short option. */
1088 const char *const equivalent
;
1089 /* Argument info. A string of flag chars; NULL equals no options.
1090 a => argument required.
1091 o => argument optional.
1092 j => join argument to equivalent, making one word.
1093 * => require other text after NAME as an argument. */
1094 const char *const arg_info
;
1097 /* This is the table of mappings. Mappings are tried sequentially
1098 for each option encountered; the first one that matches, wins. */
1100 static const struct option_map option_map
[] =
1102 {"--all-warnings", "-Wall", 0},
1103 {"--ansi", "-ansi", 0},
1104 {"--assemble", "-S", 0},
1105 {"--assert", "-A", "a"},
1106 {"--classpath", "-fclasspath=", "aj"},
1107 {"--bootclasspath", "-fbootclasspath=", "aj"},
1108 {"--CLASSPATH", "-fclasspath=", "aj"},
1109 {"--combine", "-combine", 0},
1110 {"--comments", "-C", 0},
1111 {"--comments-in-macros", "-CC", 0},
1112 {"--compile", "-c", 0},
1113 {"--debug", "-g", "oj"},
1114 {"--define-macro", "-D", "aj"},
1115 {"--dependencies", "-M", 0},
1116 {"--dump", "-d", "a"},
1117 {"--dumpbase", "-dumpbase", "a"},
1118 {"--encoding", "-fencoding=", "aj"},
1119 {"--entry", "-e", 0},
1120 {"--extra-warnings", "-W", 0},
1121 {"--extdirs", "-fextdirs=", "aj"},
1122 {"--for-assembler", "-Wa", "a"},
1123 {"--for-linker", "-Xlinker", "a"},
1124 {"--force-link", "-u", "a"},
1125 {"--coverage", "-coverage", 0},
1126 {"--imacros", "-imacros", "a"},
1127 {"--include", "-include", "a"},
1128 {"--include-barrier", "-I-", 0},
1129 {"--include-directory", "-I", "aj"},
1130 {"--include-directory-after", "-idirafter", "a"},
1131 {"--include-prefix", "-iprefix", "a"},
1132 {"--include-with-prefix", "-iwithprefix", "a"},
1133 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1134 {"--include-with-prefix-after", "-iwithprefix", "a"},
1135 {"--language", "-x", "a"},
1136 {"--library-directory", "-L", "a"},
1137 {"--machine", "-m", "aj"},
1138 {"--machine-", "-m", "*j"},
1139 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1140 {"--no-line-commands", "-P", 0},
1141 {"--no-precompiled-includes", "-noprecomp", 0},
1142 {"--no-standard-includes", "-nostdinc", 0},
1143 {"--no-standard-libraries", "-nostdlib", 0},
1144 {"--no-warnings", "-w", 0},
1145 {"--optimize", "-O", "oj"},
1146 {"--output", "-o", "a"},
1147 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1148 {"--param", "--param", "a"},
1149 {"--pass-exit-codes", "-pass-exit-codes", 0},
1150 {"--pedantic", "-pedantic", 0},
1151 {"--pedantic-errors", "-pedantic-errors", 0},
1152 {"--pie", "-pie", 0},
1153 {"--pipe", "-pipe", 0},
1154 {"--prefix", "-B", "a"},
1155 {"--preprocess", "-E", 0},
1156 {"--print-search-dirs", "-print-search-dirs", 0},
1157 {"--print-file-name", "-print-file-name=", "aj"},
1158 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1159 {"--print-missing-file-dependencies", "-MG", 0},
1160 {"--print-multi-lib", "-print-multi-lib", 0},
1161 {"--print-multi-directory", "-print-multi-directory", 0},
1162 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1163 {"--print-prog-name", "-print-prog-name=", "aj"},
1164 {"--print-sysroot", "-print-sysroot", 0},
1165 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1166 {"--profile", "-p", 0},
1167 {"--profile-blocks", "-a", 0},
1168 {"--quiet", "-q", 0},
1169 {"--resource", "-fcompile-resource=", "aj"},
1170 {"--save-temps", "-save-temps", 0},
1171 {"--shared", "-shared", 0},
1172 {"--silent", "-q", 0},
1173 {"--specs", "-specs=", "aj"},
1174 {"--static", "-static", 0},
1175 {"--std", "-std=", "aj"},
1176 {"--symbolic", "-symbolic", 0},
1177 {"--sysroot", "--sysroot=", "aj"},
1178 {"--time", "-time", 0},
1179 {"--trace-includes", "-H", 0},
1180 {"--traditional", "-traditional", 0},
1181 {"--traditional-cpp", "-traditional-cpp", 0},
1182 {"--trigraphs", "-trigraphs", 0},
1183 {"--undefine-macro", "-U", "aj"},
1184 {"--user-dependencies", "-MM", 0},
1185 {"--verbose", "-v", 0},
1186 {"--warn-", "-W", "*j"},
1187 {"--write-dependencies", "-MD", 0},
1188 {"--write-user-dependencies", "-MMD", 0},
1193 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1194 static const struct {
1195 const char *const option_found
;
1196 const char *const replacements
;
1197 } target_option_translations
[] =
1199 TARGET_OPTION_TRANSLATE_TABLE
,
1204 /* Translate the options described by *ARGCP and *ARGVP.
1205 Make a new vector and store it back in *ARGVP,
1206 and store its length in *ARGCP. */
1209 translate_options (int *argcp
, const char *const **argvp
)
1213 const char *const *argv
= *argvp
;
1214 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1215 const char **newv
= XNEWVAR (const char *, newvsize
);
1219 newv
[newindex
++] = argv
[i
++];
1223 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1227 target_option_translations
[tott_idx
].option_found
;
1230 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1237 for (sp
= target_option_translations
[tott_idx
].replacements
;
1244 newvsize
+= spaces
* sizeof (const char *);
1245 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1247 sp
= target_option_translations
[tott_idx
].replacements
;
1256 newv
[newindex
++] = np
;
1257 while (*np
!= ' ' && *np
)
1268 if (target_option_translations
[tott_idx
].option_found
)
1272 /* Translate -- options. */
1273 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1276 /* Find a mapping that applies to this option. */
1277 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1279 size_t optlen
= strlen (option_map
[j
].name
);
1280 size_t arglen
= strlen (argv
[i
]);
1281 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1282 const char *arginfo
= option_map
[j
].arg_info
;
1287 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1289 const char *arg
= 0;
1291 if (arglen
< optlen
)
1294 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1295 if (strlen (option_map
[k
].name
) >= arglen
1296 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1298 error ("ambiguous abbreviation %s", argv
[i
]);
1302 if (k
!= ARRAY_SIZE (option_map
))
1306 if (arglen
> optlen
)
1308 /* If the option has an argument, accept that. */
1309 if (argv
[i
][optlen
] == '=')
1310 arg
= argv
[i
] + optlen
+ 1;
1312 /* If this mapping requires extra text at end of name,
1313 accept that as "argument". */
1314 else if (strchr (arginfo
, '*') != 0)
1315 arg
= argv
[i
] + optlen
;
1317 /* Otherwise, extra text at end means mismatch.
1318 Try other mappings. */
1323 else if (strchr (arginfo
, '*') != 0)
1325 error ("incomplete '%s' option", option_map
[j
].name
);
1329 /* Handle arguments. */
1330 if (strchr (arginfo
, 'a') != 0)
1336 error ("missing argument to '%s' option",
1337 option_map
[j
].name
);
1344 else if (strchr (arginfo
, '*') != 0)
1346 else if (strchr (arginfo
, 'o') == 0)
1349 error ("extraneous argument to '%s' option",
1350 option_map
[j
].name
);
1354 /* Store the translation as one argv elt or as two. */
1355 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1356 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1360 newv
[newindex
++] = option_map
[j
].equivalent
;
1361 newv
[newindex
++] = arg
;
1364 newv
[newindex
++] = option_map
[j
].equivalent
;
1372 /* Handle old-fashioned options--just copy them through,
1373 with their arguments. */
1374 else if (argv
[i
][0] == '-')
1376 const char *p
= argv
[i
] + 1;
1380 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1381 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1382 else if (WORD_SWITCH_TAKES_ARG (p
))
1383 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1384 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1387 else if (! strcmp (p
, "Xlinker"))
1389 else if (! strcmp (p
, "Xpreprocessor"))
1391 else if (! strcmp (p
, "Xassembler"))
1394 /* Watch out for an option at the end of the command line that
1395 is missing arguments, and avoid skipping past the end of the
1397 if (nskip
+ i
> argc
)
1402 newv
[newindex
++] = argv
[i
++];
1407 /* Ordinary operands, or +e options. */
1408 newv
[newindex
++] = argv
[i
++];
1418 skip_whitespace (char *p
)
1422 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1423 be considered whitespace. */
1424 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1426 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1440 /* Structures to keep track of prefixes to try when looking for files. */
1444 const char *prefix
; /* String to prepend to the path. */
1445 struct prefix_list
*next
; /* Next in linked list. */
1446 int require_machine_suffix
; /* Don't use without machine_suffix. */
1447 /* 2 means try both machine_suffix and just_machine_suffix. */
1448 int priority
; /* Sort key - priority within list. */
1449 int os_multilib
; /* 1 if OS multilib scheme should be used,
1450 0 for GCC multilib scheme. */
1455 struct prefix_list
*plist
; /* List of prefixes to try */
1456 int max_len
; /* Max length of a prefix in PLIST */
1457 const char *name
; /* Name of this list (used in config stuff) */
1460 /* List of prefixes to try when looking for executables. */
1462 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1464 /* List of prefixes to try when looking for startup (crt0) files. */
1466 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1468 /* List of prefixes to try when looking for include files. */
1470 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1472 /* Suffix to attach to directories searched for commands.
1473 This looks like `MACHINE/VERSION/'. */
1475 static const char *machine_suffix
= 0;
1477 /* Suffix to attach to directories searched for commands.
1478 This is just `MACHINE/'. */
1480 static const char *just_machine_suffix
= 0;
1482 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1484 static const char *gcc_exec_prefix
;
1486 /* Adjusted value of standard_libexec_prefix. */
1488 static const char *gcc_libexec_prefix
;
1490 /* Default prefixes to attach to command names. */
1492 #ifndef STANDARD_STARTFILE_PREFIX_1
1493 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1495 #ifndef STANDARD_STARTFILE_PREFIX_2
1496 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1499 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1500 #undef MD_EXEC_PREFIX
1501 #undef MD_STARTFILE_PREFIX
1502 #undef MD_STARTFILE_PREFIX_1
1505 /* If no prefixes defined, use the null string, which will disable them. */
1506 #ifndef MD_EXEC_PREFIX
1507 #define MD_EXEC_PREFIX ""
1509 #ifndef MD_STARTFILE_PREFIX
1510 #define MD_STARTFILE_PREFIX ""
1512 #ifndef MD_STARTFILE_PREFIX_1
1513 #define MD_STARTFILE_PREFIX_1 ""
1516 /* These directories are locations set at configure-time based on the
1517 --prefix option provided to configure. Their initializers are
1518 defined in Makefile.in. These paths are not *directly* used when
1519 gcc_exec_prefix is set because, in that case, we know where the
1520 compiler has been installed, and use paths relative to that
1521 location instead. */
1522 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1523 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1524 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1525 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1527 /* For native compilers, these are well-known paths containing
1528 components that may be provided by the system. For cross
1529 compilers, these paths are not used. */
1530 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1531 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1532 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1533 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1534 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1535 static const char *const standard_startfile_prefix_1
1536 = STANDARD_STARTFILE_PREFIX_1
;
1537 static const char *const standard_startfile_prefix_2
1538 = STANDARD_STARTFILE_PREFIX_2
;
1540 /* A relative path to be used in finding the location of tools
1541 relative to the driver. */
1542 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1544 /* Subdirectory to use for locating libraries. Set by
1545 set_multilib_dir based on the compilation options. */
1547 static const char *multilib_dir
;
1549 /* Subdirectory to use for locating libraries in OS conventions. Set by
1550 set_multilib_dir based on the compilation options. */
1552 static const char *multilib_os_dir
;
1554 /* Structure to keep track of the specs that have been defined so far.
1555 These are accessed using %(specname) or %[specname] in a compiler
1560 /* The following 2 fields must be first */
1561 /* to allow EXTRA_SPECS to be initialized */
1562 const char *name
; /* name of the spec. */
1563 const char *ptr
; /* available ptr if no static pointer */
1565 /* The following fields are not initialized */
1566 /* by EXTRA_SPECS */
1567 const char **ptr_spec
; /* pointer to the spec itself. */
1568 struct spec_list
*next
; /* Next spec in linked list. */
1569 int name_len
; /* length of the name */
1570 int alloc_p
; /* whether string was allocated */
1573 #define INIT_STATIC_SPEC(NAME,PTR) \
1574 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1576 /* List of statically defined specs. */
1577 static struct spec_list static_specs
[] =
1579 INIT_STATIC_SPEC ("asm", &asm_spec
),
1580 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1581 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1582 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1583 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1584 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1585 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1586 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1587 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1588 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1589 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1590 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1591 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1592 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1593 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1594 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1595 INIT_STATIC_SPEC ("link", &link_spec
),
1596 INIT_STATIC_SPEC ("lib", &lib_spec
),
1597 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1598 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1599 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1600 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1601 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1602 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1603 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1604 INIT_STATIC_SPEC ("version", &compiler_version
),
1605 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1606 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1607 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1608 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1609 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1610 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1611 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1612 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1613 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1614 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1615 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1616 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1617 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1618 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1619 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1622 #ifdef EXTRA_SPECS /* additional specs needed */
1623 /* Structure to keep track of just the first two args of a spec_list.
1624 That is all that the EXTRA_SPECS macro gives us. */
1627 const char *const name
;
1628 const char *const ptr
;
1631 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1632 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1635 /* List of dynamically allocates specs that have been defined so far. */
1637 static struct spec_list
*specs
= (struct spec_list
*) 0;
1639 /* List of static spec functions. */
1641 static const struct spec_function static_spec_functions
[] =
1643 { "getenv", getenv_spec_function
},
1644 { "if-exists", if_exists_spec_function
},
1645 { "if-exists-else", if_exists_else_spec_function
},
1646 { "replace-outfile", replace_outfile_spec_function
},
1647 { "version-compare", version_compare_spec_function
},
1648 { "include", include_spec_function
},
1649 { "print-asm-header", print_asm_header_spec_function
},
1650 #ifdef EXTRA_SPEC_FUNCTIONS
1651 EXTRA_SPEC_FUNCTIONS
1656 static int processing_spec_function
;
1658 /* Add appropriate libgcc specs to OBSTACK, taking into account
1659 various permutations of -shared-libgcc, -shared, and such. */
1661 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1663 #ifndef USE_LD_AS_NEEDED
1664 #define USE_LD_AS_NEEDED 0
1668 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1669 const char *static_name
, const char *eh_name
)
1673 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1674 "%{!static:%{!static-libgcc:"
1675 #if USE_LD_AS_NEEDED
1676 "%{!shared-libgcc:",
1677 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1680 shared_name
, "%{!shared: ", static_name
, "}"
1684 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1685 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1689 "%{shared-libgcc:", shared_name
, "}"
1690 "%{!shared-libgcc:", static_name
, "}"
1693 "%{shared:", shared_name
, "}"
1698 obstack_grow (obstack
, buf
, strlen (buf
));
1701 #endif /* ENABLE_SHARED_LIBGCC */
1703 /* Initialize the specs lookup routines. */
1708 struct spec_list
*next
= (struct spec_list
*) 0;
1709 struct spec_list
*sl
= (struct spec_list
*) 0;
1713 return; /* Already initialized. */
1716 notice ("Using built-in specs.\n");
1719 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1721 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1723 sl
= &extra_specs
[i
];
1724 sl
->name
= extra_specs_1
[i
].name
;
1725 sl
->ptr
= extra_specs_1
[i
].ptr
;
1727 sl
->name_len
= strlen (sl
->name
);
1728 sl
->ptr_spec
= &sl
->ptr
;
1733 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1735 sl
= &static_specs
[i
];
1740 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1741 /* ??? If neither -shared-libgcc nor --static-libgcc was
1742 seen, then we should be making an educated guess. Some proposed
1743 heuristics for ELF include:
1745 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1746 program will be doing dynamic loading, which will likely
1747 need the shared libgcc.
1749 (2) If "-ldl", then it's also a fair bet that we're doing
1752 (3) For each ET_DYN we're linking against (either through -lfoo
1753 or /some/path/foo.so), check to see whether it or one of
1754 its dependencies depends on a shared libgcc.
1758 If the runtime is fixed to look for program headers instead
1759 of calling __register_frame_info at all, for each object,
1760 use the shared libgcc if any EH symbol referenced.
1762 If crtstuff is fixed to not invoke __register_frame_info
1763 automatically, for each object, use the shared libgcc if
1764 any non-empty unwind section found.
1766 Doing any of this probably requires invoking an external program to
1767 do the actual object file scanning. */
1769 const char *p
= libgcc_spec
;
1772 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1773 when given the proper command line arguments. */
1776 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1778 init_gcc_specs (&obstack
,
1780 #ifdef USE_LIBUNWIND_EXCEPTIONS
1786 #ifdef USE_LIBUNWIND_EXCEPTIONS
1787 # ifdef HAVE_LD_STATIC_DYNAMIC
1788 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1798 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1800 /* Ug. We don't know shared library extensions. Hope that
1801 systems that use this form don't do shared libraries. */
1802 init_gcc_specs (&obstack
,
1806 #ifdef USE_LIBUNWIND_EXCEPTIONS
1815 obstack_1grow (&obstack
, *p
);
1816 in_sep
= (*p
== ' ');
1821 obstack_1grow (&obstack
, '\0');
1822 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1825 #ifdef USE_AS_TRADITIONAL_FORMAT
1826 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1828 static const char tf
[] = "--traditional-format ";
1829 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1830 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1831 asm_spec
= XOBFINISH (&obstack
, const char *);
1835 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1836 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1837 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1838 link_spec
= XOBFINISH (&obstack
, const char *);
1844 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1845 removed; If the spec starts with a + then SPEC is added to the end of the
1849 set_spec (const char *name
, const char *spec
)
1851 struct spec_list
*sl
;
1852 const char *old_spec
;
1853 int name_len
= strlen (name
);
1856 /* If this is the first call, initialize the statically allocated specs. */
1859 struct spec_list
*next
= (struct spec_list
*) 0;
1860 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1862 sl
= &static_specs
[i
];
1869 /* See if the spec already exists. */
1870 for (sl
= specs
; sl
; sl
= sl
->next
)
1871 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1876 /* Not found - make it. */
1877 sl
= XNEW (struct spec_list
);
1878 sl
->name
= xstrdup (name
);
1879 sl
->name_len
= name_len
;
1880 sl
->ptr_spec
= &sl
->ptr
;
1882 *(sl
->ptr_spec
) = "";
1887 old_spec
= *(sl
->ptr_spec
);
1888 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1889 ? concat (old_spec
, spec
+ 1, NULL
)
1894 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1897 /* Free the old spec. */
1898 if (old_spec
&& sl
->alloc_p
)
1899 free (CONST_CAST(char *, old_spec
));
1904 /* Accumulate a command (program name and args), and run it. */
1906 /* Vector of pointers to arguments in the current line of specifications. */
1908 static const char **argbuf
;
1910 /* Number of elements allocated in argbuf. */
1912 static int argbuf_length
;
1914 /* Number of elements in argbuf currently in use (containing args). */
1916 static int argbuf_index
;
1918 /* Position in the argbuf array containing the name of the output file
1919 (the value associated with the "-o" flag). */
1921 static int have_o_argbuf_index
= 0;
1923 /* Were the options -c or -S passed. */
1924 static int have_c
= 0;
1926 /* Was the option -o passed. */
1927 static int have_o
= 0;
1929 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1930 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1933 static struct temp_name
{
1934 const char *suffix
; /* suffix associated with the code. */
1935 int length
; /* strlen (suffix). */
1936 int unique
; /* Indicates whether %g or %u/%U was used. */
1937 const char *filename
; /* associated filename. */
1938 int filename_length
; /* strlen (filename). */
1939 struct temp_name
*next
;
1942 /* Number of commands executed so far. */
1944 static int execution_count
;
1946 /* Number of commands that exited with a signal. */
1948 static int signal_count
;
1950 /* Name with which this program was invoked. */
1952 static const char *programname
;
1954 /* Allocate the argument vector. */
1960 argbuf
= XNEWVEC (const char *, argbuf_length
);
1963 /* Clear out the vector of arguments (after a command is executed). */
1971 /* Add one argument to the vector at the end.
1972 This is done when a space is seen or at the end of the line.
1973 If DELETE_ALWAYS is nonzero, the arg is a filename
1974 and the file should be deleted eventually.
1975 If DELETE_FAILURE is nonzero, the arg is a filename
1976 and the file should be deleted if this compilation fails. */
1979 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1981 if (argbuf_index
+ 1 == argbuf_length
)
1982 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
1984 argbuf
[argbuf_index
++] = arg
;
1985 argbuf
[argbuf_index
] = 0;
1987 if (strcmp (arg
, "-o") == 0)
1988 have_o_argbuf_index
= argbuf_index
;
1989 if (delete_always
|| delete_failure
)
1990 record_temp_file (arg
, delete_always
, delete_failure
);
1993 /* Load specs from a file name named FILENAME, replacing occurrences of
1994 various different types of line-endings, \r\n, \n\r and just \r, with
1998 load_specs (const char *filename
)
2002 struct stat statbuf
;
2009 notice ("Reading specs from %s\n", filename
);
2011 /* Open and stat the file. */
2012 desc
= open (filename
, O_RDONLY
, 0);
2014 pfatal_with_name (filename
);
2015 if (stat (filename
, &statbuf
) < 0)
2016 pfatal_with_name (filename
);
2018 /* Read contents of file into BUFFER. */
2019 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2020 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2022 pfatal_with_name (filename
);
2023 buffer
[readlen
] = 0;
2026 specs
= XNEWVEC (char, readlen
+ 1);
2028 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2034 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2036 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2050 /* Read compilation specs from a file named FILENAME,
2051 replacing the default ones.
2053 A suffix which starts with `*' is a definition for
2054 one of the machine-specific sub-specs. The "suffix" should be
2055 *asm, *cc1, *cpp, *link, *startfile, etc.
2056 The corresponding spec is stored in asm_spec, etc.,
2057 rather than in the `compilers' vector.
2059 Anything invalid in the file is a fatal error. */
2062 read_specs (const char *filename
, int main_p
)
2067 buffer
= load_specs (filename
);
2069 /* Scan BUFFER for specs, putting them in the vector. */
2075 char *in
, *out
, *p1
, *p2
, *p3
;
2077 /* Advance P in BUFFER to the next nonblank nocomment line. */
2078 p
= skip_whitespace (p
);
2082 /* Is this a special command that starts with '%'? */
2083 /* Don't allow this for the main specs file, since it would
2084 encourage people to overwrite it. */
2085 if (*p
== '%' && !main_p
)
2088 while (*p
&& *p
!= '\n')
2094 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2095 && (p1
[sizeof "%include" - 1] == ' '
2096 || p1
[sizeof "%include" - 1] == '\t'))
2100 p1
+= sizeof ("%include");
2101 while (*p1
== ' ' || *p1
== '\t')
2104 if (*p1
++ != '<' || p
[-2] != '>')
2105 fatal ("specs %%include syntax malformed after %ld characters",
2106 (long) (p1
- buffer
+ 1));
2109 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2110 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2113 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2114 && (p1
[sizeof "%include_noerr" - 1] == ' '
2115 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2119 p1
+= sizeof "%include_noerr";
2120 while (*p1
== ' ' || *p1
== '\t')
2123 if (*p1
++ != '<' || p
[-2] != '>')
2124 fatal ("specs %%include syntax malformed after %ld characters",
2125 (long) (p1
- buffer
+ 1));
2128 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2130 read_specs (new_filename
, FALSE
);
2131 else if (verbose_flag
)
2132 notice ("could not find specs file %s\n", p1
);
2135 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2136 && (p1
[sizeof "%rename" - 1] == ' '
2137 || p1
[sizeof "%rename" - 1] == '\t'))
2140 struct spec_list
*sl
;
2141 struct spec_list
*newsl
;
2143 /* Get original name. */
2144 p1
+= sizeof "%rename";
2145 while (*p1
== ' ' || *p1
== '\t')
2148 if (! ISALPHA ((unsigned char) *p1
))
2149 fatal ("specs %%rename syntax malformed after %ld characters",
2150 (long) (p1
- buffer
));
2153 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2156 if (*p2
!= ' ' && *p2
!= '\t')
2157 fatal ("specs %%rename syntax malformed after %ld characters",
2158 (long) (p2
- buffer
));
2162 while (*p2
== ' ' || *p2
== '\t')
2165 if (! ISALPHA ((unsigned char) *p2
))
2166 fatal ("specs %%rename syntax malformed after %ld characters",
2167 (long) (p2
- buffer
));
2169 /* Get new spec name. */
2171 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2175 fatal ("specs %%rename syntax malformed after %ld characters",
2176 (long) (p3
- buffer
));
2179 for (sl
= specs
; sl
; sl
= sl
->next
)
2180 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2184 fatal ("specs %s spec was not found to be renamed", p1
);
2186 if (strcmp (p1
, p2
) == 0)
2189 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2190 if (strcmp (newsl
->name
, p2
) == 0)
2191 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2196 notice ("rename spec %s to %s\n", p1
, p2
);
2198 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2202 set_spec (p2
, *(sl
->ptr_spec
));
2204 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2206 *(sl
->ptr_spec
) = "";
2211 fatal ("specs unknown %% command after %ld characters",
2212 (long) (p1
- buffer
));
2215 /* Find the colon that should end the suffix. */
2217 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2220 /* The colon shouldn't be missing. */
2222 fatal ("specs file malformed after %ld characters",
2223 (long) (p1
- buffer
));
2225 /* Skip back over trailing whitespace. */
2227 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2230 /* Copy the suffix to a string. */
2231 suffix
= save_string (p
, p2
- p
);
2232 /* Find the next line. */
2233 p
= skip_whitespace (p1
+ 1);
2235 fatal ("specs file malformed after %ld characters",
2236 (long) (p
- buffer
));
2239 /* Find next blank line or end of string. */
2240 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2243 /* Specs end at the blank line and do not include the newline. */
2244 spec
= save_string (p
, p1
- p
);
2247 /* Delete backslash-newline sequences from the spec. */
2252 if (in
[0] == '\\' && in
[1] == '\n')
2254 else if (in
[0] == '#')
2255 while (*in
&& *in
!= '\n')
2263 if (suffix
[0] == '*')
2265 if (! strcmp (suffix
, "*link_command"))
2266 link_command_spec
= spec
;
2268 set_spec (suffix
+ 1, spec
);
2272 /* Add this pair to the vector. */
2274 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2276 compilers
[n_compilers
].suffix
= suffix
;
2277 compilers
[n_compilers
].spec
= spec
;
2279 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2283 link_command_spec
= spec
;
2286 if (link_command_spec
== 0)
2287 fatal ("spec file has no spec for linking");
2290 /* Record the names of temporary files we tell compilers to write,
2291 and delete them at the end of the run. */
2293 /* This is the common prefix we use to make temp file names.
2294 It is chosen once for each run of this program.
2295 It is substituted into a spec by %g or %j.
2296 Thus, all temp file names contain this prefix.
2297 In practice, all temp file names start with this prefix.
2299 This prefix comes from the envvar TMPDIR if it is defined;
2300 otherwise, from the P_tmpdir macro if that is defined;
2301 otherwise, in /usr/tmp or /tmp;
2302 or finally the current directory if all else fails. */
2304 static const char *temp_filename
;
2306 /* Length of the prefix. */
2308 static int temp_filename_length
;
2310 /* Define the list of temporary files to delete. */
2315 struct temp_file
*next
;
2318 /* Queue of files to delete on success or failure of compilation. */
2319 static struct temp_file
*always_delete_queue
;
2320 /* Queue of files to delete on failure of compilation. */
2321 static struct temp_file
*failure_delete_queue
;
2323 /* Record FILENAME as a file to be deleted automatically.
2324 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2325 otherwise delete it in any case.
2326 FAIL_DELETE nonzero means delete it if a compilation step fails;
2327 otherwise delete it in any case. */
2330 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2332 char *const name
= xstrdup (filename
);
2336 struct temp_file
*temp
;
2337 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2338 if (! strcmp (name
, temp
->name
))
2341 temp
= XNEW (struct temp_file
);
2342 temp
->next
= always_delete_queue
;
2344 always_delete_queue
= temp
;
2351 struct temp_file
*temp
;
2352 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2353 if (! strcmp (name
, temp
->name
))
2356 temp
= XNEW (struct temp_file
);
2357 temp
->next
= failure_delete_queue
;
2359 failure_delete_queue
= temp
;
2365 /* Delete all the temporary files whose names we previously recorded. */
2367 #ifndef DELETE_IF_ORDINARY
2368 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2371 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2372 if (unlink (NAME) < 0) \
2374 perror_with_name (NAME); \
2379 delete_if_ordinary (const char *name
)
2385 printf ("Delete %s? (y or n) ", name
);
2389 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2392 if (i
== 'y' || i
== 'Y')
2394 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2398 delete_temp_files (void)
2400 struct temp_file
*temp
;
2402 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2403 delete_if_ordinary (temp
->name
);
2404 always_delete_queue
= 0;
2407 /* Delete all the files to be deleted on error. */
2410 delete_failure_queue (void)
2412 struct temp_file
*temp
;
2414 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2415 delete_if_ordinary (temp
->name
);
2419 clear_failure_queue (void)
2421 failure_delete_queue
= 0;
2424 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2426 If DO_MULTI is true iterate over the paths twice, first with multilib
2427 suffix then without, otherwise iterate over the paths once without
2428 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2429 to avoid visiting the same path twice, but we could do better. For
2430 instance, /usr/lib/../lib is considered different from /usr/lib.
2431 At least EXTRA_SPACE chars past the end of the path passed to
2432 CALLBACK are available for use by the callback.
2433 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2435 Returns the value returned by CALLBACK. */
2438 for_each_path (const struct path_prefix
*paths
,
2441 void *(*callback
) (char *, void *),
2442 void *callback_info
)
2444 struct prefix_list
*pl
;
2445 const char *multi_dir
= NULL
;
2446 const char *multi_os_dir
= NULL
;
2447 const char *multi_suffix
;
2448 const char *just_multi_suffix
;
2451 bool skip_multi_dir
= false;
2452 bool skip_multi_os_dir
= false;
2454 multi_suffix
= machine_suffix
;
2455 just_multi_suffix
= just_machine_suffix
;
2456 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2458 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2459 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2460 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2462 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2463 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2467 size_t multi_dir_len
= 0;
2468 size_t multi_os_dir_len
= 0;
2470 size_t just_suffix_len
;
2474 multi_dir_len
= strlen (multi_dir
);
2476 multi_os_dir_len
= strlen (multi_os_dir
);
2477 suffix_len
= strlen (multi_suffix
);
2478 just_suffix_len
= strlen (just_multi_suffix
);
2482 len
= paths
->max_len
+ extra_space
+ 1;
2483 if (suffix_len
> multi_os_dir_len
)
2486 len
+= multi_os_dir_len
;
2487 path
= XNEWVEC (char, len
);
2490 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2492 len
= strlen (pl
->prefix
);
2493 memcpy (path
, pl
->prefix
, len
);
2495 /* Look first in MACHINE/VERSION subdirectory. */
2496 if (!skip_multi_dir
)
2498 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2499 ret
= callback (path
, callback_info
);
2504 /* Some paths are tried with just the machine (ie. target)
2505 subdir. This is used for finding as, ld, etc. */
2507 && pl
->require_machine_suffix
== 2)
2509 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2510 ret
= callback (path
, callback_info
);
2515 /* Now try the base path. */
2516 if (!pl
->require_machine_suffix
2517 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2519 const char *this_multi
;
2520 size_t this_multi_len
;
2522 if (pl
->os_multilib
)
2524 this_multi
= multi_os_dir
;
2525 this_multi_len
= multi_os_dir_len
;
2529 this_multi
= multi_dir
;
2530 this_multi_len
= multi_dir_len
;
2534 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2538 ret
= callback (path
, callback_info
);
2546 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2549 /* Run through the paths again, this time without multilibs.
2550 Don't repeat any we have already seen. */
2553 free (CONST_CAST (char *, multi_dir
));
2555 free (CONST_CAST (char *, multi_suffix
));
2556 multi_suffix
= machine_suffix
;
2557 free (CONST_CAST (char *, just_multi_suffix
));
2558 just_multi_suffix
= just_machine_suffix
;
2561 skip_multi_dir
= true;
2564 free (CONST_CAST (char *, multi_os_dir
));
2565 multi_os_dir
= NULL
;
2568 skip_multi_os_dir
= true;
2573 free (CONST_CAST (char *, multi_dir
));
2574 free (CONST_CAST (char *, multi_suffix
));
2575 free (CONST_CAST (char *, just_multi_suffix
));
2578 free (CONST_CAST (char *, multi_os_dir
));
2584 /* Callback for build_search_list. Adds path to obstack being built. */
2586 struct add_to_obstack_info
{
2593 add_to_obstack (char *path
, void *data
)
2595 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2597 if (info
->check_dir
&& !is_directory (path
, false))
2600 if (!info
->first_time
)
2601 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2603 obstack_grow (info
->ob
, path
, strlen (path
));
2605 info
->first_time
= false;
2609 /* Add or change the value of an environment variable, outputting the
2610 change to standard error if in verbose mode. */
2612 xputenv (const char *string
)
2615 notice ("%s\n", string
);
2616 putenv (CONST_CAST (char *, string
));
2619 /* Build a list of search directories from PATHS.
2620 PREFIX is a string to prepend to the list.
2621 If CHECK_DIR_P is true we ensure the directory exists.
2622 If DO_MULTI is true, multilib paths are output first, then
2624 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2625 It is also used by the --print-search-dirs flag. */
2628 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2629 bool check_dir
, bool do_multi
)
2631 struct add_to_obstack_info info
;
2633 info
.ob
= &collect_obstack
;
2634 info
.check_dir
= check_dir
;
2635 info
.first_time
= true;
2637 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2638 obstack_1grow (&collect_obstack
, '=');
2640 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2642 obstack_1grow (&collect_obstack
, '\0');
2643 return XOBFINISH (&collect_obstack
, char *);
2646 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2650 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2653 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2656 /* Check whether NAME can be accessed in MODE. This is like access,
2657 except that it never considers directories to be executable. */
2660 access_check (const char *name
, int mode
)
2666 if (stat (name
, &st
) < 0
2667 || S_ISDIR (st
.st_mode
))
2671 return access (name
, mode
);
2674 /* Callback for find_a_file. Appends the file name to the directory
2675 path. If the resulting file exists in the right mode, return the
2676 full pathname to the file. */
2678 struct file_at_path_info
{
2687 file_at_path (char *path
, void *data
)
2689 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2690 size_t len
= strlen (path
);
2692 memcpy (path
+ len
, info
->name
, info
->name_len
);
2693 len
+= info
->name_len
;
2695 /* Some systems have a suffix for executable files.
2696 So try appending that first. */
2697 if (info
->suffix_len
)
2699 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2700 if (access_check (path
, info
->mode
) == 0)
2705 if (access_check (path
, info
->mode
) == 0)
2711 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2712 access to check permissions. If DO_MULTI is true, search multilib
2713 paths then non-multilib paths, otherwise do not search multilib paths.
2714 Return 0 if not found, otherwise return its name, allocated with malloc. */
2717 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2720 struct file_at_path_info info
;
2722 #ifdef DEFAULT_ASSEMBLER
2723 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2724 return xstrdup (DEFAULT_ASSEMBLER
);
2727 #ifdef DEFAULT_LINKER
2728 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2729 return xstrdup (DEFAULT_LINKER
);
2732 /* Determine the filename to execute (special case for absolute paths). */
2734 if (IS_ABSOLUTE_PATH (name
))
2736 if (access (name
, mode
) == 0)
2737 return xstrdup (name
);
2743 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2744 info
.name_len
= strlen (info
.name
);
2745 info
.suffix_len
= strlen (info
.suffix
);
2748 return (char*) for_each_path (pprefix
, do_multi
,
2749 info
.name_len
+ info
.suffix_len
,
2750 file_at_path
, &info
);
2753 /* Ranking of prefixes in the sort list. -B prefixes are put before
2756 enum path_prefix_priority
2758 PREFIX_PRIORITY_B_OPT
,
2759 PREFIX_PRIORITY_LAST
2762 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2763 order according to PRIORITY. Within each PRIORITY, new entries are
2766 If WARN is nonzero, we will warn if no file is found
2767 through this prefix. WARN should point to an int
2768 which will be set to 1 if this entry is used.
2770 COMPONENT is the value to be passed to update_path.
2772 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2773 the complete value of machine_suffix.
2774 2 means try both machine_suffix and just_machine_suffix. */
2777 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2778 const char *component
, /* enum prefix_priority */ int priority
,
2779 int require_machine_suffix
, int os_multilib
)
2781 struct prefix_list
*pl
, **prev
;
2784 for (prev
= &pprefix
->plist
;
2785 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2786 prev
= &(*prev
)->next
)
2789 /* Keep track of the longest prefix. */
2791 prefix
= update_path (prefix
, component
);
2792 len
= strlen (prefix
);
2793 if (len
> pprefix
->max_len
)
2794 pprefix
->max_len
= len
;
2796 pl
= XNEW (struct prefix_list
);
2797 pl
->prefix
= prefix
;
2798 pl
->require_machine_suffix
= require_machine_suffix
;
2799 pl
->priority
= priority
;
2800 pl
->os_multilib
= os_multilib
;
2802 /* Insert after PREV. */
2807 /* Same as add_prefix, but prepending target_system_root to prefix. */
2808 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2810 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2811 const char *component
,
2812 /* enum prefix_priority */ int priority
,
2813 int require_machine_suffix
, int os_multilib
)
2815 if (!IS_ABSOLUTE_PATH (prefix
))
2816 fatal ("system path '%s' is not absolute", prefix
);
2818 if (target_system_root
)
2820 if (target_sysroot_suffix
)
2821 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2822 prefix
= concat (target_system_root
, prefix
, NULL
);
2824 /* We have to override this because GCC's notion of sysroot
2825 moves along with GCC. */
2829 add_prefix (pprefix
, prefix
, component
, priority
,
2830 require_machine_suffix
, os_multilib
);
2833 /* Execute the command specified by the arguments on the current line of spec.
2834 When using pipes, this includes several piped-together commands
2835 with `|' between them.
2837 Return 0 if successful, -1 if failed. */
2843 int n_commands
; /* # of command. */
2845 struct pex_obj
*pex
;
2848 const char *prog
; /* program name. */
2849 const char **argv
; /* vector of args. */
2852 struct command
*commands
; /* each command buffer with above info. */
2854 gcc_assert (!processing_spec_function
);
2858 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2859 argbuf
[0] = (string
) ? string
: argbuf
[0];
2860 insert_wrapper (wrapper_string
);
2863 /* Count # of piped commands. */
2864 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2865 if (strcmp (argbuf
[i
], "|") == 0)
2868 /* Get storage for each command. */
2869 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2871 /* Split argbuf into its separate piped processes,
2872 and record info about each one.
2873 Also search for the programs that are to be run. */
2875 commands
[0].prog
= argbuf
[0]; /* first command. */
2876 commands
[0].argv
= &argbuf
[0];
2878 if (!wrapper_string
)
2880 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2881 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2884 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2885 if (strcmp (argbuf
[i
], "|") == 0)
2886 { /* each command. */
2887 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2888 fatal ("-pipe not supported");
2890 argbuf
[i
] = 0; /* termination of command args. */
2891 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2892 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2893 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2896 commands
[n_commands
].argv
[0] = string
;
2900 argbuf
[argbuf_index
] = 0;
2902 /* If -v, print what we are about to do, and maybe query. */
2906 /* For help listings, put a blank line between sub-processes. */
2907 if (print_help_list
)
2908 fputc ('\n', stderr
);
2910 /* Print each piped command as a separate line. */
2911 for (i
= 0; i
< n_commands
; i
++)
2913 const char *const *j
;
2915 if (verbose_only_flag
)
2917 for (j
= commands
[i
].argv
; *j
; j
++)
2920 fprintf (stderr
, " \"");
2921 for (p
= *j
; *p
; ++p
)
2923 if (*p
== '"' || *p
== '\\' || *p
== '$')
2924 fputc ('\\', stderr
);
2927 fputc ('"', stderr
);
2931 for (j
= commands
[i
].argv
; *j
; j
++)
2932 fprintf (stderr
, " %s", *j
);
2934 /* Print a pipe symbol after all but the last command. */
2935 if (i
+ 1 != n_commands
)
2936 fprintf (stderr
, " |");
2937 fprintf (stderr
, "\n");
2940 if (verbose_only_flag
!= 0)
2942 /* verbose_only_flag should act as if the spec was
2943 executed, so increment execution_count before
2944 returning. This prevents spurious warnings about
2945 unused linker input files, etc. */
2950 notice ("\nGo ahead? (y or n) ");
2954 while (getchar () != '\n')
2957 if (i
!= 'y' && i
!= 'Y')
2962 #ifdef ENABLE_VALGRIND_CHECKING
2963 /* Run the each command through valgrind. To simplify prepending the
2964 path to valgrind and the option "-q" (for quiet operation unless
2965 something triggers), we allocate a separate argv array. */
2967 for (i
= 0; i
< n_commands
; i
++)
2973 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2976 argv
= XALLOCAVEC (const char *, argc
+ 3);
2978 argv
[0] = VALGRIND_PATH
;
2980 for (j
= 2; j
< argc
+ 2; j
++)
2981 argv
[j
] = commands
[i
].argv
[j
- 2];
2984 commands
[i
].argv
= argv
;
2985 commands
[i
].prog
= argv
[0];
2989 /* Run each piped subprocess. */
2991 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2992 programname
, temp_filename
);
2994 pfatal_with_name (_("pex_init failed"));
2996 for (i
= 0; i
< n_commands
; i
++)
3000 const char *string
= commands
[i
].argv
[0];
3002 errmsg
= pex_run (pex
,
3003 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3004 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3005 string
, CONST_CAST (char **, commands
[i
].argv
),
3014 pfatal_with_name (errmsg
);
3018 if (string
!= commands
[i
].prog
)
3019 free (CONST_CAST (char *, string
));
3024 /* Wait for all the subprocesses to finish. */
3028 struct pex_time
*times
= NULL
;
3031 statuses
= (int *) alloca (n_commands
* sizeof (int));
3032 if (!pex_get_status (pex
, n_commands
, statuses
))
3033 pfatal_with_name (_("failed to get exit status"));
3037 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3038 if (!pex_get_times (pex
, n_commands
, times
))
3039 pfatal_with_name (_("failed to get process times"));
3044 for (i
= 0; i
< n_commands
; ++i
)
3046 int status
= statuses
[i
];
3048 if (WIFSIGNALED (status
))
3051 /* SIGPIPE is a special case. It happens in -pipe mode
3052 when the compiler dies before the preprocessor is done,
3053 or the assembler dies before the compiler is done.
3054 There's generally been an error already, and this is
3055 just fallout. So don't generate another error unless
3056 we would otherwise have succeeded. */
3057 if (WTERMSIG (status
) == SIGPIPE
3058 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3066 Internal error: %s (program %s)\n\
3067 Please submit a full bug report.\n\
3068 See %s for instructions.",
3069 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3072 else if (WIFEXITED (status
)
3073 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3075 if (WEXITSTATUS (status
) > greatest_status
)
3076 greatest_status
= WEXITSTATUS (status
);
3082 struct pex_time
*pt
= ×
[i
];
3085 ut
= ((double) pt
->user_seconds
3086 + (double) pt
->user_microseconds
/ 1.0e6
);
3087 st
= ((double) pt
->system_seconds
3088 + (double) pt
->system_microseconds
/ 1.0e6
);
3091 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3099 /* Find all the switches given to us
3100 and make a vector describing them.
3101 The elements of the vector are strings, one per switch given.
3102 If a switch uses following arguments, then the `part1' field
3103 is the switch itself and the `args' field
3104 is a null-terminated vector containing the following arguments.
3105 Bits in the `live_cond' field are:
3106 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3107 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3108 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3109 The `validated' field is nonzero if any spec has looked at this switch;
3110 if it remains zero at the end of the run, it must be meaningless. */
3112 #define SWITCH_LIVE 0x1
3113 #define SWITCH_FALSE 0x2
3114 #define SWITCH_IGNORE 0x4
3120 unsigned int live_cond
;
3121 unsigned char validated
;
3122 unsigned char ordering
;
3125 static struct switchstr
*switches
;
3127 static int n_switches
;
3129 /* Language is one of three things:
3131 1) The name of a real programming language.
3132 2) NULL, indicating that no one has figured out
3134 3) '*', indicating that the file should be passed
3139 const char *language
;
3140 struct compiler
*incompiler
;
3145 /* Also a vector of input files specified. */
3147 static struct infile
*infiles
;
3151 /* True if multiple input files are being compiled to a single
3154 static bool combine_inputs
;
3156 /* This counts the number of libraries added by lang_specific_driver, so that
3157 we can tell if there were any user supplied any files or libraries. */
3159 static int added_libraries
;
3161 /* And a vector of corresponding output files is made up later. */
3163 const char **outfiles
;
3165 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3167 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3168 is true if we should look for an executable suffix. DO_OBJ
3169 is true if we should look for an object suffix. */
3172 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3173 int do_obj ATTRIBUTE_UNUSED
)
3175 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3183 len
= strlen (name
);
3185 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3186 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3187 if (do_obj
&& len
> 2
3188 && name
[len
- 2] == '.'
3189 && name
[len
- 1] == 'o')
3191 obstack_grow (&obstack
, name
, len
- 2);
3192 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3193 name
= XOBFINISH (&obstack
, const char *);
3197 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3198 /* If there is no filetype, make it the executable suffix (which includes
3199 the "."). But don't get confused if we have just "-o". */
3200 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3203 for (i
= len
- 1; i
>= 0; i
--)
3204 if (IS_DIR_SEPARATOR (name
[i
]))
3207 for (i
++; i
< len
; i
++)
3211 obstack_grow (&obstack
, name
, len
);
3212 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3213 strlen (TARGET_EXECUTABLE_SUFFIX
));
3214 name
= XOBFINISH (&obstack
, const char *);
3221 /* Display the command line switches accepted by gcc. */
3225 printf (_("Usage: %s [options] file...\n"), programname
);
3226 fputs (_("Options:\n"), stdout
);
3228 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3229 fputs (_(" --help Display this information\n"), stdout
);
3230 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3231 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3232 fputs (_(" Display specific types of command line options\n"), stdout
);
3234 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3235 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3236 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3237 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3238 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3239 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3240 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3241 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3242 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3244 -print-multi-lib Display the mapping between command line options and\n\
3245 multiple library search directories\n"), stdout
);
3246 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3247 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3248 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3249 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3250 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3251 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3252 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3253 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3254 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3255 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3256 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3257 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3258 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3259 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3260 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3262 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3263 and libraries\n"), stdout
);
3264 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3265 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3266 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3267 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3268 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3269 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3270 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3271 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3272 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3274 -x <language> Specify the language of the following input files\n\
3275 Permissible languages include: c c++ assembler none\n\
3276 'none' means revert to the default behavior of\n\
3277 guessing the language based on the file's extension\n\
3281 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3282 passed on to the various sub-processes invoked by %s. In order to pass\n\
3283 other options on to these processes the -W<letter> options must be used.\n\
3286 /* The rest of the options are displayed by invocations of the various
3291 add_preprocessor_option (const char *option
, int len
)
3293 n_preprocessor_options
++;
3295 if (! preprocessor_options
)
3296 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3298 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3299 n_preprocessor_options
);
3301 preprocessor_options
[n_preprocessor_options
- 1] =
3302 save_string (option
, len
);
3306 add_assembler_option (const char *option
, int len
)
3308 n_assembler_options
++;
3310 if (! assembler_options
)
3311 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3313 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3314 n_assembler_options
);
3316 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3320 add_linker_option (const char *option
, int len
)
3324 if (! linker_options
)
3325 linker_options
= XNEWVEC (char *, n_linker_options
);
3327 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3329 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3332 /* Create the vector `switches' and its contents.
3333 Store its length in `n_switches'. */
3336 process_command (int argc
, const char **argv
)
3341 const char *spec_lang
= 0;
3342 int last_language_n_infiles
;
3343 int lang_n_infiles
= 0;
3344 #ifdef MODIFY_TARGET_NAME
3345 int is_modify_target_name
;
3348 const char *tooldir_prefix
;
3350 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3354 added_libraries
= 0;
3356 /* Figure compiler version from version string. */
3358 compiler_version
= temp1
= xstrdup (version_string
);
3360 for (; *temp1
; ++temp1
)
3369 /* If there is a -V or -b option (or both), process it now, before
3370 trying to interpret the rest of the command line.
3371 Use heuristic that all configuration names must have at least
3372 one dash '-'. This allows us to pass options starting with -b. */
3373 if (argc
> 1 && argv
[1][0] == '-'
3374 && (argv
[1][1] == 'V'
3375 || (argv
[1][1] == 'b'
3376 && (argv
[1][2] == '\0'
3377 || NULL
!= strchr (argv
[1] + 2, '-')))))
3379 const char *new_version
= DEFAULT_TARGET_VERSION
;
3380 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3381 const char *progname
= argv
[0];
3389 while (argc
> 1 && argv
[1][0] == '-'
3390 && (argv
[1][1] == 'V'
3391 || (argv
[1][1] == 'b'
3392 && (argv
[1][2] == '\0'
3393 || NULL
!= strchr (argv
[1] + 2, '-')))))
3395 char opt
= argv
[1][1];
3397 if (argv
[1][2] != '\0')
3410 fatal ("'-%c' option must have argument", opt
);
3417 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3418 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3420 new_argv0
= XDUPVAR (char, progname
, baselen
,
3421 baselen
+ concat_length (new_version
, new_machine
,
3422 "-gcc-", NULL
) + 1);
3423 strcpy (new_argv0
+ baselen
, new_machine
);
3424 strcat (new_argv0
, "-gcc-");
3425 strcat (new_argv0
, new_version
);
3427 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3428 new_argv
[0] = new_argv0
;
3430 errmsg
= pex_one (PEX_SEARCH
, new_argv0
, new_argv
, progname
, NULL
,
3431 NULL
, &status
, &err
);
3436 fatal ("couldn't run '%s': %s", new_argv0
, errmsg
);
3438 fatal ("couldn't run '%s': %s: %s", new_argv0
, errmsg
,
3444 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3445 see if we can create it from the pathname specified in argv[0]. */
3447 gcc_libexec_prefix
= standard_libexec_prefix
;
3449 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3450 if (!gcc_exec_prefix
)
3452 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3453 standard_exec_prefix
);
3454 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3455 standard_bindir_prefix
,
3456 standard_libexec_prefix
);
3457 if (gcc_exec_prefix
)
3458 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3462 /* make_relative_prefix requires a program name, but
3463 GCC_EXEC_PREFIX is typically a directory name with a trailing
3464 / (which is ignored by make_relative_prefix), so append a
3466 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3467 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3468 standard_exec_prefix
,
3469 standard_libexec_prefix
);
3471 /* The path is unrelocated, so fallback to the original setting. */
3472 if (!gcc_libexec_prefix
)
3473 gcc_libexec_prefix
= standard_libexec_prefix
;
3479 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3480 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3481 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3483 if (gcc_exec_prefix
)
3485 int len
= strlen (gcc_exec_prefix
);
3487 if (len
> (int) sizeof ("/lib/gcc/") - 1
3488 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3490 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3491 if (IS_DIR_SEPARATOR (*temp
)
3492 && strncmp (temp
+ 1, "lib", 3) == 0
3493 && IS_DIR_SEPARATOR (temp
[4])
3494 && strncmp (temp
+ 5, "gcc", 3) == 0)
3495 len
-= sizeof ("/lib/gcc/") - 1;
3498 set_std_prefix (gcc_exec_prefix
, len
);
3499 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3500 PREFIX_PRIORITY_LAST
, 0, 0);
3501 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3502 PREFIX_PRIORITY_LAST
, 0, 0);
3505 /* COMPILER_PATH and LIBRARY_PATH have values
3506 that are lists of directory names with colons. */
3508 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3511 const char *startp
, *endp
;
3512 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3514 startp
= endp
= temp
;
3517 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3519 strncpy (nstore
, startp
, endp
- startp
);
3521 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3522 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3524 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3525 nstore
[endp
- startp
+ 1] = 0;
3528 nstore
[endp
- startp
] = 0;
3529 add_prefix (&exec_prefixes
, nstore
, 0,
3530 PREFIX_PRIORITY_LAST
, 0, 0);
3531 add_prefix (&include_prefixes
, nstore
, 0,
3532 PREFIX_PRIORITY_LAST
, 0, 0);
3535 endp
= startp
= endp
+ 1;
3542 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3543 if (temp
&& *cross_compile
== '0')
3545 const char *startp
, *endp
;
3546 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3548 startp
= endp
= temp
;
3551 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3553 strncpy (nstore
, startp
, endp
- startp
);
3555 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3556 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3558 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3559 nstore
[endp
- startp
+ 1] = 0;
3562 nstore
[endp
- startp
] = 0;
3563 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3564 PREFIX_PRIORITY_LAST
, 0, 1);
3567 endp
= startp
= endp
+ 1;
3574 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3575 GET_ENVIRONMENT (temp
, "LPATH");
3576 if (temp
&& *cross_compile
== '0')
3578 const char *startp
, *endp
;
3579 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3581 startp
= endp
= temp
;
3584 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3586 strncpy (nstore
, startp
, endp
- startp
);
3588 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3589 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3591 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3592 nstore
[endp
- startp
+ 1] = 0;
3595 nstore
[endp
- startp
] = 0;
3596 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3597 PREFIX_PRIORITY_LAST
, 0, 1);
3600 endp
= startp
= endp
+ 1;
3607 /* Convert new-style -- options to old-style. */
3608 translate_options (&argc
, (const char *const **) &argv
);
3610 /* Do language-specific adjustment/addition of flags. */
3611 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3613 /* Scan argv twice. Here, the first time, just count how many switches
3614 there will be in their vector, and how many input files in theirs.
3615 Here we also parse the switches that cc itself uses (e.g. -v). */
3617 for (i
= 1; i
< argc
; i
++)
3619 if (! strcmp (argv
[i
], "-dumpspecs"))
3621 struct spec_list
*sl
;
3623 for (sl
= specs
; sl
; sl
= sl
->next
)
3624 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3625 if (link_command_spec
)
3626 printf ("*link_command:\n%s\n\n", link_command_spec
);
3629 else if (! strcmp (argv
[i
], "-dumpversion"))
3631 printf ("%s\n", spec_version
);
3634 else if (! strcmp (argv
[i
], "-dumpmachine"))
3636 printf ("%s\n", spec_machine
);
3639 else if (strcmp (argv
[i
], "-fversion") == 0)
3641 /* translate_options () has turned --version into -fversion. */
3642 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
3644 printf ("Copyright %s 2008 Free Software Foundation, Inc.\n",
3646 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3647 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3651 else if (strcmp (argv
[i
], "-fhelp") == 0)
3653 /* translate_options () has turned --help into -fhelp. */
3654 print_help_list
= 1;
3656 /* We will be passing a dummy file on to the sub-processes. */
3660 /* CPP driver cannot obtain switch from cc1_options. */
3662 add_preprocessor_option ("--help", 6);
3663 add_assembler_option ("--help", 6);
3664 add_linker_option ("--help", 6);
3666 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3668 /* translate_options () has turned --help into -fhelp. */
3669 print_subprocess_help
= 2;
3671 /* We will be passing a dummy file on to the sub-processes. */
3675 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3677 /* translate_options() has turned --target-help into -ftarget-help. */
3678 print_subprocess_help
= 1;
3680 /* We will be passing a dummy file on to the sub-processes. */
3684 /* CPP driver cannot obtain switch from cc1_options. */
3686 add_preprocessor_option ("--target-help", 13);
3687 add_assembler_option ("--target-help", 13);
3688 add_linker_option ("--target-help", 13);
3690 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3692 pass_exit_codes
= 1;
3695 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3696 print_search_dirs
= 1;
3697 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3698 print_file_name
= "libgcc.a";
3699 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3700 print_file_name
= argv
[i
] + 17;
3701 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3702 print_prog_name
= argv
[i
] + 17;
3703 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3704 print_multi_lib
= 1;
3705 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3706 print_multi_directory
= 1;
3707 else if (! strcmp (argv
[i
], "-print-sysroot"))
3709 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3710 print_multi_os_directory
= 1;
3711 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3712 print_sysroot_headers_suffix
= 1;
3713 else if (! strncmp (argv
[i
], "-Wa,", 4))
3716 /* Pass the rest of this option to the assembler. */
3718 /* Split the argument at commas. */
3720 for (j
= 4; argv
[i
][j
]; j
++)
3721 if (argv
[i
][j
] == ',')
3723 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3727 /* Record the part after the last comma. */
3728 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3730 else if (! strncmp (argv
[i
], "-Wp,", 4))
3733 /* Pass the rest of this option to the preprocessor. */
3735 /* Split the argument at commas. */
3737 for (j
= 4; argv
[i
][j
]; j
++)
3738 if (argv
[i
][j
] == ',')
3740 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3744 /* Record the part after the last comma. */
3745 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3747 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3748 /* The +e options to the C++ front-end. */
3750 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3753 /* Split the argument at commas. */
3754 for (j
= 3; argv
[i
][j
]; j
++)
3755 n_infiles
+= (argv
[i
][j
] == ',');
3757 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3760 fatal ("argument to '-Xlinker' is missing");
3765 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3768 fatal ("argument to '-Xpreprocessor' is missing");
3770 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3772 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3775 fatal ("argument to '-Xassembler' is missing");
3777 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3779 else if (strcmp (argv
[i
], "-l") == 0)
3782 fatal ("argument to '-l' is missing");
3787 else if (strncmp (argv
[i
], "-l", 2) == 0)
3789 else if (strcmp (argv
[i
], "-save-temps") == 0)
3791 save_temps_flag
= 1;
3794 else if (strcmp (argv
[i
], "-combine") == 0)
3799 else if (strcmp (argv
[i
], "-specs") == 0)
3801 struct user_specs
*user
= XNEW (struct user_specs
);
3803 fatal ("argument to '-specs' is missing");
3805 user
->next
= (struct user_specs
*) 0;
3806 user
->filename
= argv
[i
];
3807 if (user_specs_tail
)
3808 user_specs_tail
->next
= user
;
3810 user_specs_head
= user
;
3811 user_specs_tail
= user
;
3813 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3815 struct user_specs
*user
= XNEW (struct user_specs
);
3816 if (strlen (argv
[i
]) == 7)
3817 fatal ("argument to '-specs=' is missing");
3819 user
->next
= (struct user_specs
*) 0;
3820 user
->filename
= argv
[i
] + 7;
3821 if (user_specs_tail
)
3822 user_specs_tail
->next
= user
;
3824 user_specs_head
= user
;
3825 user_specs_tail
= user
;
3827 else if (strcmp (argv
[i
], "-time") == 0)
3829 else if (strcmp (argv
[i
], "-pipe") == 0)
3831 /* -pipe has to go into the switches array as well as
3836 else if (strcmp (argv
[i
], "-wrapper") == 0)
3839 fatal ("argument to '-wrapper' is missing");
3841 wrapper_string
= argv
[i
];
3845 else if (strcmp (argv
[i
], "-###") == 0)
3847 /* This is similar to -v except that there is no execution
3848 of the commands and the echoed arguments are quoted. It
3849 is intended for use in shell scripts to capture the
3850 driver-generated command line. */
3851 verbose_only_flag
++;
3854 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3856 const char *p
= &argv
[i
][1];
3862 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
3867 fatal ("'-%c' must come at the start of the command line", c
);
3875 if (p
[1] == 0 && i
+ 1 == argc
)
3876 fatal ("argument to '-B' is missing");
3882 len
= strlen (value
);
3884 /* Catch the case where the user has forgotten to append a
3885 directory separator to the path. Note, they may be using
3886 -B to add an executable name prefix, eg "i386-elf-", in
3887 order to distinguish between multiple installations of
3888 GCC in the same directory. Hence we must check to see
3889 if appending a directory separator actually makes a
3890 valid directory name. */
3891 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3892 && is_directory (value
, false))
3894 char *tmp
= XNEWVEC (char, len
+ 2);
3895 strcpy (tmp
, value
);
3896 tmp
[len
] = DIR_SEPARATOR
;
3901 add_prefix (&exec_prefixes
, value
, NULL
,
3902 PREFIX_PRIORITY_B_OPT
, 0, 0);
3903 add_prefix (&startfile_prefixes
, value
, NULL
,
3904 PREFIX_PRIORITY_B_OPT
, 0, 0);
3905 add_prefix (&include_prefixes
, value
, NULL
,
3906 PREFIX_PRIORITY_B_OPT
, 0, 0);
3911 case 'v': /* Print our subcommands and print versions. */
3913 /* If they do anything other than exactly `-v', don't set
3914 verbose_flag; rather, continue on to give the error. */
3932 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3937 /* Forward scan, just in case -S or -c is specified
3944 if (argv
[j
][0] == '-')
3946 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3952 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3953 j
+= skip
- (argv
[j
][2] != 0);
3954 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3961 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3963 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3965 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3972 #ifdef MODIFY_TARGET_NAME
3973 is_modify_target_name
= 0;
3975 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3976 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3978 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
3979 + strlen (spec_machine
));
3982 int made_addition
= 0;
3984 is_modify_target_name
= 1;
3985 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3987 if (modify_target
[j
].add_del
== DELETE
3988 && (! strncmp (q
, modify_target
[j
].str
,
3989 strlen (modify_target
[j
].str
))))
3990 p
+= strlen (modify_target
[j
].str
);
3991 else if (modify_target
[j
].add_del
== ADD
3992 && ! made_addition
&& *p
== '-')
3994 for (r
= modify_target
[j
].str
; *r
!= 0; )
4002 spec_machine
= new_name
;
4005 if (is_modify_target_name
)
4011 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4012 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4013 else if (WORD_SWITCH_TAKES_ARG (p
))
4014 i
+= WORD_SWITCH_TAKES_ARG (p
);
4024 if (save_temps_flag
&& use_pipes
)
4026 /* -save-temps overrides -pipe, so that temp files are produced */
4027 if (save_temps_flag
)
4028 error ("warning: -pipe ignored because -save-temps specified");
4032 /* Set up the search paths. We add directories that we expect to
4033 contain GNU Toolchain components before directories specified by
4034 the machine description so that we will find GNU components (like
4035 the GNU assembler) before those of the host system. */
4037 /* If we don't know where the toolchain has been installed, use the
4038 configured-in locations. */
4039 if (!gcc_exec_prefix
)
4042 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4043 PREFIX_PRIORITY_LAST
, 1, 0);
4044 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4045 PREFIX_PRIORITY_LAST
, 2, 0);
4046 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4047 PREFIX_PRIORITY_LAST
, 2, 0);
4049 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4050 PREFIX_PRIORITY_LAST
, 1, 0);
4053 /* If not cross-compiling, search well-known system locations. */
4054 if (*cross_compile
== '0')
4057 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
4058 PREFIX_PRIORITY_LAST
, 2, 0);
4059 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4060 PREFIX_PRIORITY_LAST
, 2, 0);
4062 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4063 PREFIX_PRIORITY_LAST
, 1, 0);
4066 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4067 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4068 dir_separator_str
, NULL
);
4070 /* Look for tools relative to the location from which the driver is
4071 running, or, if that is not available, the configured prefix. */
4073 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4074 spec_machine
, dir_separator_str
,
4075 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4077 add_prefix (&exec_prefixes
,
4078 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4079 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4080 add_prefix (&startfile_prefixes
,
4081 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4082 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4084 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4085 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4086 then consider it to relocate with the rest of the GCC installation
4087 if GCC_EXEC_PREFIX is set.
4088 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4089 if (target_system_root
&& gcc_exec_prefix
)
4091 char *tmp_prefix
= make_relative_prefix (argv
[0],
4092 standard_bindir_prefix
,
4093 target_system_root
);
4094 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4096 target_system_root
= tmp_prefix
;
4097 target_system_root_changed
= 1;
4102 /* More prefixes are enabled in main, after we read the specs file
4103 and determine whether this is cross-compilation or not. */
4105 /* Then create the space for the vectors and scan again. */
4107 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4108 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4111 last_language_n_infiles
= -1;
4113 /* This, time, copy the text of each switch and store a pointer
4114 to the copy in the vector of switches.
4115 Store all the infiles in their vector. */
4117 for (i
= 1; i
< argc
; i
++)
4119 /* Just skip the switches that were handled by the preceding loop. */
4120 #ifdef MODIFY_TARGET_NAME
4121 is_modify_target_name
= 0;
4123 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4124 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4125 is_modify_target_name
= 1;
4127 if (is_modify_target_name
)
4131 if (! strncmp (argv
[i
], "-Wa,", 4))
4133 else if (! strncmp (argv
[i
], "-Wp,", 4))
4135 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4137 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4139 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4141 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4143 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4145 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4147 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4149 else if (! strcmp (argv
[i
], "-print-sysroot"))
4151 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4153 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4155 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4157 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4158 target_system_root_changed
= 1;
4160 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4162 /* Compensate for the +e options to the C++ front-end;
4163 they're there simply for cfront call-compatibility. We do
4164 some magic in default_compilers to pass them down properly.
4165 Note we deliberately start at the `+' here, to avoid passing
4166 -e0 or -e1 down into the linker. */
4167 switches
[n_switches
].part1
= &argv
[i
][0];
4168 switches
[n_switches
].args
= 0;
4169 switches
[n_switches
].live_cond
= 0;
4170 switches
[n_switches
].validated
= 0;
4173 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4176 /* Split the argument at commas. */
4178 for (j
= 4; argv
[i
][j
]; j
++)
4179 if (argv
[i
][j
] == ',')
4181 infiles
[n_infiles
].language
= "*";
4182 infiles
[n_infiles
++].name
4183 = save_string (argv
[i
] + prev
, j
- prev
);
4186 /* Record the part after the last comma. */
4187 infiles
[n_infiles
].language
= "*";
4188 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4190 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4192 infiles
[n_infiles
].language
= "*";
4193 infiles
[n_infiles
++].name
= argv
[++i
];
4195 /* Xassembler and Xpreprocessor were already handled in the first argv
4196 scan, so all we need to do here is ignore them and their argument. */
4197 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4199 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4201 else if (strcmp (argv
[i
], "-l") == 0)
4202 { /* POSIX allows separation of -l and the lib arg;
4203 canonicalize by concatenating -l with its arg */
4204 infiles
[n_infiles
].language
= "*";
4205 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4207 else if (strncmp (argv
[i
], "-l", 2) == 0)
4209 infiles
[n_infiles
].language
= "*";
4210 infiles
[n_infiles
++].name
= argv
[i
];
4212 else if (strcmp (argv
[i
], "-wrapper") == 0)
4214 else if (strcmp (argv
[i
], "-specs") == 0)
4216 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4218 else if (strcmp (argv
[i
], "-time") == 0)
4220 else if (strcmp (argv
[i
], "-###") == 0)
4222 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4224 const char *p
= &argv
[i
][1];
4229 if (p
[1] == 0 && i
+ 1 == argc
)
4230 fatal ("argument to '-x' is missing");
4232 spec_lang
= argv
[++i
];
4235 if (! strcmp (spec_lang
, "none"))
4236 /* Suppress the warning if -xnone comes after the last input
4237 file, because alternate command interfaces like g++ might
4238 find it useful to place -xnone after each input file. */
4241 last_language_n_infiles
= n_infiles
;
4244 switches
[n_switches
].part1
= p
;
4245 /* Deal with option arguments in separate argv elements. */
4246 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4247 || WORD_SWITCH_TAKES_ARG (p
))
4250 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4254 /* Count only the option arguments in separate argv elements. */
4255 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4257 if (i
+ n_args
>= argc
)
4258 fatal ("argument to '-%s' is missing", p
);
4259 switches
[n_switches
].args
4260 = XNEWVEC (const char *, n_args
+ 1);
4262 switches
[n_switches
].args
[j
++] = argv
[++i
];
4263 /* Null-terminate the vector. */
4264 switches
[n_switches
].args
[j
] = 0;
4266 else if (strchr (switches_need_spaces
, c
))
4268 /* On some systems, ld cannot handle some options without
4269 a space. So split the option from its argument. */
4270 char *part1
= XNEWVEC (char, 2);
4274 switches
[n_switches
].part1
= part1
;
4275 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4276 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4277 switches
[n_switches
].args
[1] = 0;
4280 switches
[n_switches
].args
= 0;
4282 switches
[n_switches
].live_cond
= 0;
4283 switches
[n_switches
].validated
= 0;
4284 switches
[n_switches
].ordering
= 0;
4285 /* These are always valid, since gcc.c itself understands the
4286 first four and gfortranspec.c understands -static-libgfortran. */
4287 if (!strcmp (p
, "save-temps")
4288 || !strcmp (p
, "static-libgcc")
4289 || !strcmp (p
, "shared-libgcc")
4290 || !strcmp (p
, "pipe")
4291 || !strcmp (p
, "static-libgfortran"))
4292 switches
[n_switches
].validated
= 1;
4295 char ch
= switches
[n_switches
].part1
[0];
4297 switches
[n_switches
].validated
= 1;
4303 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4304 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4307 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4309 perror_with_name (argv
[i
]);
4314 infiles
[n_infiles
].language
= spec_lang
;
4315 infiles
[n_infiles
++].name
= argv
[i
];
4320 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4321 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4323 /* Ensure we only invoke each subprocess once. */
4324 if (print_subprocess_help
|| print_help_list
)
4328 /* Create a dummy input file, so that we can pass
4329 the help option on to the various sub-processes. */
4330 infiles
[0].language
= "c";
4331 infiles
[0].name
= "help-dummy";
4334 switches
[n_switches
].part1
= 0;
4335 infiles
[n_infiles
].name
= 0;
4338 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4339 and place that in the environment. */
4342 set_collect_gcc_options (void)
4347 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4349 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4350 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4353 for (i
= 0; (int) i
< n_switches
; i
++)
4355 const char *const *args
;
4358 obstack_grow (&collect_obstack
, " ", 1);
4362 /* Ignore elided switches. */
4363 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4366 obstack_grow (&collect_obstack
, "'-", 2);
4367 q
= switches
[i
].part1
;
4368 while ((p
= strchr (q
, '\'')))
4370 obstack_grow (&collect_obstack
, q
, p
- q
);
4371 obstack_grow (&collect_obstack
, "'\\''", 4);
4374 obstack_grow (&collect_obstack
, q
, strlen (q
));
4375 obstack_grow (&collect_obstack
, "'", 1);
4377 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4379 obstack_grow (&collect_obstack
, " '", 2);
4381 while ((p
= strchr (q
, '\'')))
4383 obstack_grow (&collect_obstack
, q
, p
- q
);
4384 obstack_grow (&collect_obstack
, "'\\''", 4);
4387 obstack_grow (&collect_obstack
, q
, strlen (q
));
4388 obstack_grow (&collect_obstack
, "'", 1);
4391 obstack_grow (&collect_obstack
, "\0", 1);
4392 xputenv (XOBFINISH (&collect_obstack
, char *));
4395 /* Process a spec string, accumulating and running commands. */
4397 /* These variables describe the input file name.
4398 input_file_number is the index on outfiles of this file,
4399 so that the output file name can be stored for later use by %o.
4400 input_basename is the start of the part of the input file
4401 sans all directory names, and basename_length is the number
4402 of characters starting there excluding the suffix .c or whatever. */
4404 static const char *input_filename
;
4405 static int input_file_number
;
4406 size_t input_filename_length
;
4407 static int basename_length
;
4408 static int suffixed_basename_length
;
4409 static const char *input_basename
;
4410 static const char *input_suffix
;
4411 #ifndef HOST_LACKS_INODE_NUMBERS
4412 static struct stat input_stat
;
4414 static int input_stat_set
;
4416 /* The compiler used to process the current input file. */
4417 static struct compiler
*input_file_compiler
;
4419 /* These are variables used within do_spec and do_spec_1. */
4421 /* Nonzero if an arg has been started and not yet terminated
4422 (with space, tab or newline). */
4423 static int arg_going
;
4425 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4426 is a temporary file name. */
4427 static int delete_this_arg
;
4429 /* Nonzero means %w has been seen; the next arg to be terminated
4430 is the output file name of this compilation. */
4431 static int this_is_output_file
;
4433 /* Nonzero means %s has been seen; the next arg to be terminated
4434 is the name of a library file and we should try the standard
4435 search dirs for it. */
4436 static int this_is_library_file
;
4438 /* Nonzero means that the input of this command is coming from a pipe. */
4439 static int input_from_pipe
;
4441 /* Nonnull means substitute this for any suffix when outputting a switches
4443 static const char *suffix_subst
;
4445 /* If there is an argument being accumulated, terminate it and store it. */
4448 end_going_arg (void)
4454 obstack_1grow (&obstack
, 0);
4455 string
= XOBFINISH (&obstack
, const char *);
4456 if (this_is_library_file
)
4457 string
= find_file (string
);
4458 store_arg (string
, delete_this_arg
, this_is_output_file
);
4459 if (this_is_output_file
)
4460 outfiles
[input_file_number
] = string
;
4466 /* Parse the WRAPPER string which is a comma separated list of the command line
4467 and insert them into the beginning of argbuf. */
4470 insert_wrapper (const char *wrapper
)
4474 char *buf
= xstrdup (wrapper
);
4483 while ((p
= strchr (p
, ',')) != NULL
);
4485 if (argbuf_index
+ n
>= argbuf_length
)
4487 argbuf_length
= argbuf_length
* 2;
4488 while (argbuf_length
< argbuf_index
+ n
)
4490 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4492 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4493 argbuf
[i
+ n
] = argbuf
[i
];
4506 while ((p
= strchr (p
, ',')) != NULL
);
4507 gcc_assert (i
== n
);
4511 /* Process the spec SPEC and run the commands specified therein.
4512 Returns 0 if the spec is successfully processed; -1 if failed. */
4515 do_spec (const char *spec
)
4519 value
= do_spec_2 (spec
);
4521 /* Force out any unfinished command.
4522 If -pipe, this forces out the last command if it ended in `|'. */
4525 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4528 set_collect_gcc_options ();
4530 if (argbuf_index
> 0)
4538 do_spec_2 (const char *spec
)
4544 delete_this_arg
= 0;
4545 this_is_output_file
= 0;
4546 this_is_library_file
= 0;
4547 input_from_pipe
= 0;
4548 suffix_subst
= NULL
;
4550 result
= do_spec_1 (spec
, 0, NULL
);
4558 /* Process the given spec string and add any new options to the end
4559 of the switches/n_switches array. */
4562 do_option_spec (const char *name
, const char *spec
)
4564 unsigned int i
, value_count
, value_len
;
4565 const char *p
, *q
, *value
;
4566 char *tmp_spec
, *tmp_spec_p
;
4568 if (configure_default_options
[0].name
== NULL
)
4571 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4572 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4574 if (i
== ARRAY_SIZE (configure_default_options
))
4577 value
= configure_default_options
[i
].value
;
4578 value_len
= strlen (value
);
4580 /* Compute the size of the final spec. */
4583 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4589 /* Replace each %(VALUE) by the specified value. */
4590 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4591 + value_count
* (value_len
- strlen ("%(VALUE)")));
4592 tmp_spec_p
= tmp_spec
;
4594 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4596 memcpy (tmp_spec_p
, q
, p
- q
);
4597 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4598 memcpy (tmp_spec_p
, value
, value_len
);
4599 tmp_spec_p
+= value_len
;
4600 q
= p
+ strlen ("%(VALUE)");
4602 strcpy (tmp_spec_p
, q
);
4604 do_self_spec (tmp_spec
);
4607 /* Process the given spec string and add any new options to the end
4608 of the switches/n_switches array. */
4611 do_self_spec (const char *spec
)
4614 do_spec_1 (" ", 0, NULL
);
4616 if (argbuf_index
> 0)
4621 n_switches
+= argbuf_index
;
4622 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches
+ 1);
4624 switches
[n_switches
] = switches
[first
];
4625 for (i
= 0; i
< argbuf_index
; i
++)
4627 struct switchstr
*sw
;
4629 /* Each switch should start with '-'. */
4630 if (argbuf
[i
][0] != '-')
4631 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4633 sw
= &switches
[i
+ first
];
4634 sw
->part1
= &argbuf
[i
][1];
4643 /* Callback for processing %D and %I specs. */
4645 struct spec_path_info
{
4650 bool separate_options
;
4654 spec_path (char *path
, void *data
)
4656 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4660 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4663 if (info
->append_len
!= 0)
4665 len
= strlen (path
);
4666 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4669 if (!is_directory (path
, true))
4672 do_spec_1 (info
->option
, 1, NULL
);
4673 if (info
->separate_options
)
4674 do_spec_1 (" ", 0, NULL
);
4676 if (info
->append_len
== 0)
4678 len
= strlen (path
);
4679 save
= path
[len
- 1];
4680 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4681 path
[len
- 1] = '\0';
4684 do_spec_1 (path
, 1, NULL
);
4685 do_spec_1 (" ", 0, NULL
);
4687 /* Must not damage the original path. */
4688 if (info
->append_len
== 0)
4689 path
[len
- 1] = save
;
4694 /* Process the sub-spec SPEC as a portion of a larger spec.
4695 This is like processing a whole spec except that we do
4696 not initialize at the beginning and we do not supply a
4697 newline by default at the end.
4698 INSWITCH nonzero means don't process %-sequences in SPEC;
4699 in this case, % is treated as an ordinary character.
4700 This is used while substituting switches.
4701 INSWITCH nonzero also causes SPC not to terminate an argument.
4703 Value is zero unless a line was finished
4704 and the command on that line reported an error. */
4707 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4709 const char *p
= spec
;
4715 /* If substituting a switch, treat all chars like letters.
4716 Otherwise, NL, SPC, TAB and % are special. */
4717 switch (inswitch
? 'a' : c
)
4722 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4724 /* A `|' before the newline means use a pipe here,
4725 but only if -pipe was specified.
4726 Otherwise, execute now and don't pass the `|' as an arg. */
4729 input_from_pipe
= 1;
4736 set_collect_gcc_options ();
4738 if (argbuf_index
> 0)
4744 /* Reinitialize for a new command, and for a new argument. */
4747 delete_this_arg
= 0;
4748 this_is_output_file
= 0;
4749 this_is_library_file
= 0;
4750 input_from_pipe
= 0;
4757 obstack_1grow (&obstack
, c
);
4765 /* Reinitialize for a new argument. */
4766 delete_this_arg
= 0;
4767 this_is_output_file
= 0;
4768 this_is_library_file
= 0;
4775 fatal ("spec '%s' invalid", spec
);
4778 obstack_grow (&obstack
, input_basename
, basename_length
);
4783 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4788 delete_this_arg
= 2;
4791 /* Dump out the directories specified with LIBRARY_PATH,
4792 followed by the absolute directories
4793 that we search for startfiles. */
4796 struct spec_path_info info
;
4799 info
.append_len
= 0;
4800 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4801 /* Used on systems which record the specified -L dirs
4802 and use them to search for dynamic linking.
4803 Relative directories always come from -B,
4804 and it is better not to use them for searching
4805 at run time. In particular, stage1 loses. */
4806 info
.omit_relative
= true;
4808 info
.omit_relative
= false;
4810 info
.separate_options
= false;
4812 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4817 /* %efoo means report an error with `foo' as error message
4818 and don't execute any more commands for this file. */
4822 while (*p
!= 0 && *p
!= '\n')
4824 buf
= (char *) alloca (p
- q
+ 1);
4825 strncpy (buf
, q
, p
- q
);
4832 /* %nfoo means report a notice with `foo' on stderr. */
4836 while (*p
!= 0 && *p
!= '\n')
4838 buf
= (char *) alloca (p
- q
+ 1);
4839 strncpy (buf
, q
, p
- q
);
4841 notice ("%s\n", buf
);
4851 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4852 defined, and it is not a directory, and it is
4853 writable, use it. Otherwise, treat this like any
4854 other temporary file. */
4856 if ((!save_temps_flag
)
4857 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4858 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4860 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4861 strlen (HOST_BIT_BUCKET
));
4862 delete_this_arg
= 0;
4867 goto create_temp_file
;
4871 obstack_1grow (&obstack
, '-');
4872 delete_this_arg
= 0;
4875 /* consume suffix */
4876 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4878 if (p
[0] == '%' && p
[1] == 'O')
4883 goto create_temp_file
;
4887 /* consume suffix */
4888 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4890 if (p
[0] == '%' && p
[1] == 'O')
4895 goto create_temp_file
;
4901 struct temp_name
*t
;
4903 const char *suffix
= p
;
4904 char *saved_suffix
= NULL
;
4906 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4908 suffix_length
= p
- suffix
;
4909 if (p
[0] == '%' && p
[1] == 'O')
4912 /* We don't support extra suffix characters after %O. */
4913 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4914 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4915 if (suffix_length
== 0)
4916 suffix
= TARGET_OBJECT_SUFFIX
;
4920 = XNEWVEC (char, suffix_length
4921 + strlen (TARGET_OBJECT_SUFFIX
));
4922 strncpy (saved_suffix
, suffix
, suffix_length
);
4923 strcpy (saved_suffix
+ suffix_length
,
4924 TARGET_OBJECT_SUFFIX
);
4926 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4929 /* If the input_filename has the same suffix specified
4930 for the %g, %u, or %U, and -save-temps is specified,
4931 we could end up using that file as an intermediate
4932 thus clobbering the user's source file (.e.g.,
4933 gcc -save-temps foo.s would clobber foo.s with the
4934 output of cpp0). So check for this condition and
4935 generate a temp file as the intermediate. */
4937 if (save_temps_flag
)
4941 temp_filename_length
= basename_length
+ suffix_length
;
4942 tmp
= (char *) alloca (temp_filename_length
+ 1);
4943 strncpy (tmp
, input_basename
, basename_length
);
4944 strncpy (tmp
+ basename_length
, suffix
, suffix_length
);
4945 tmp
[temp_filename_length
] = '\0';
4946 temp_filename
= tmp
;
4947 if (strcmp (temp_filename
, input_filename
) != 0)
4949 #ifndef HOST_LACKS_INODE_NUMBERS
4950 struct stat st_temp
;
4952 /* Note, set_input() resets input_stat_set to 0. */
4953 if (input_stat_set
== 0)
4955 input_stat_set
= stat (input_filename
, &input_stat
);
4956 if (input_stat_set
>= 0)
4960 /* If we have the stat for the input_filename
4961 and we can do the stat for the temp_filename
4962 then the they could still refer to the same
4963 file if st_dev/st_ino's are the same. */
4964 if (input_stat_set
!= 1
4965 || stat (temp_filename
, &st_temp
) < 0
4966 || input_stat
.st_dev
!= st_temp
.st_dev
4967 || input_stat
.st_ino
!= st_temp
.st_ino
)
4969 /* Just compare canonical pathnames. */
4970 char* input_realname
= lrealpath (input_filename
);
4971 char* temp_realname
= lrealpath (temp_filename
);
4972 bool files_differ
= strcmp (input_realname
, temp_realname
);
4973 free (input_realname
);
4974 free (temp_realname
);
4978 temp_filename
= save_string (temp_filename
,
4979 temp_filename_length
+ 1);
4980 obstack_grow (&obstack
, temp_filename
,
4981 temp_filename_length
);
4983 delete_this_arg
= 0;
4989 /* See if we already have an association of %g/%u/%U and
4991 for (t
= temp_names
; t
; t
= t
->next
)
4992 if (t
->length
== suffix_length
4993 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4994 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4997 /* Make a new association if needed. %u and %j
4999 if (t
== 0 || c
== 'u' || c
== 'j')
5003 t
= XNEW (struct temp_name
);
5004 t
->next
= temp_names
;
5007 t
->length
= suffix_length
;
5010 t
->suffix
= saved_suffix
;
5011 saved_suffix
= NULL
;
5014 t
->suffix
= save_string (suffix
, suffix_length
);
5015 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5016 temp_filename
= make_temp_file (t
->suffix
);
5017 temp_filename_length
= strlen (temp_filename
);
5018 t
->filename
= temp_filename
;
5019 t
->filename_length
= temp_filename_length
;
5023 free (saved_suffix
);
5025 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5026 delete_this_arg
= 1;
5034 for (i
= 0; (int) i
< n_infiles
; i
++)
5035 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
5036 if (infiles
[i
].incompiler
== input_file_compiler
)
5038 store_arg (infiles
[i
].name
, 0, 0);
5039 infiles
[i
].compiled
= true;
5044 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5051 struct spec_path_info info
;
5055 do_spec_1 ("-imultilib", 1, NULL
);
5056 /* Make this a separate argument. */
5057 do_spec_1 (" ", 0, NULL
);
5058 do_spec_1 (multilib_dir
, 1, NULL
);
5059 do_spec_1 (" ", 0, NULL
);
5062 if (gcc_exec_prefix
)
5064 do_spec_1 ("-iprefix", 1, NULL
);
5065 /* Make this a separate argument. */
5066 do_spec_1 (" ", 0, NULL
);
5067 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5068 do_spec_1 (" ", 0, NULL
);
5071 if (target_system_root_changed
||
5072 (target_system_root
&& target_sysroot_hdrs_suffix
))
5074 do_spec_1 ("-isysroot", 1, NULL
);
5075 /* Make this a separate argument. */
5076 do_spec_1 (" ", 0, NULL
);
5077 do_spec_1 (target_system_root
, 1, NULL
);
5078 if (target_sysroot_hdrs_suffix
)
5079 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5080 do_spec_1 (" ", 0, NULL
);
5083 info
.option
= "-isystem";
5084 info
.append
= "include";
5085 info
.append_len
= strlen (info
.append
);
5086 info
.omit_relative
= false;
5087 info
.separate_options
= true;
5089 for_each_path (&include_prefixes
, false, info
.append_len
,
5092 info
.append
= "include-fixed";
5093 if (*sysroot_hdrs_suffix_spec
)
5094 info
.append
= concat (info
.append
, dir_separator_str
,
5095 multilib_dir
, NULL
);
5096 info
.append_len
= strlen (info
.append
);
5097 for_each_path (&include_prefixes
, false, info
.append_len
,
5104 int max
= n_infiles
;
5105 max
+= lang_specific_extra_outfiles
;
5107 if (HAVE_GNU_LD
&& at_file_supplied
)
5109 /* We are going to expand `%o' to `@FILE', where FILE
5110 is a newly-created temporary filename. The filenames
5111 that would usually be expanded in place of %o will be
5112 written to the temporary file. */
5114 char *temp_file
= make_temp_file ("");
5117 int n_files
, j
, status
;
5120 at_argument
= concat ("@", temp_file
, NULL
);
5121 store_arg (at_argument
, 0, 0);
5123 /* Convert OUTFILES into a form suitable for writeargv. */
5125 /* Determine how many are non-NULL. */
5126 for (n_files
= 0, i
= 0; i
< max
; i
++)
5127 n_files
+= outfiles
[i
] != NULL
;
5129 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5131 /* Copy the strings over. */
5132 for (i
= 0, j
= 0; i
< max
; i
++)
5135 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5140 f
= fopen (temp_file
, "w");
5143 fatal ("could not open temporary response file %s",
5146 status
= writeargv (argv
, f
);
5149 fatal ("could not write to temporary response file %s",
5152 status
= fclose (f
);
5155 fatal ("could not close temporary response file %s",
5158 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5161 for (i
= 0; i
< max
; i
++)
5163 store_arg (outfiles
[i
], 0, 0);
5168 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5173 this_is_library_file
= 1;
5177 outfiles
[input_file_number
] = NULL
;
5181 this_is_output_file
= 1;
5186 int cur_index
= argbuf_index
;
5187 /* Handle the {...} following the %W. */
5189 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5190 p
= handle_braces (p
+ 1);
5194 /* If any args were output, mark the last one for deletion
5196 if (argbuf_index
!= cur_index
)
5197 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5201 /* %x{OPTION} records OPTION for %X to output. */
5207 /* Skip past the option value and make a copy. */
5209 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5212 string
= save_string (p1
+ 1, p
- p1
- 2);
5214 /* See if we already recorded this option. */
5215 for (i
= 0; i
< n_linker_options
; i
++)
5216 if (! strcmp (string
, linker_options
[i
]))
5222 /* This option is new; add it. */
5223 add_linker_option (string
, strlen (string
));
5227 /* Dump out the options accumulated previously using %x. */
5229 for (i
= 0; i
< n_linker_options
; i
++)
5231 do_spec_1 (linker_options
[i
], 1, NULL
);
5232 /* Make each accumulated option a separate argument. */
5233 do_spec_1 (" ", 0, NULL
);
5237 /* Dump out the options accumulated previously using -Wa,. */
5239 for (i
= 0; i
< n_assembler_options
; i
++)
5241 do_spec_1 (assembler_options
[i
], 1, NULL
);
5242 /* Make each accumulated option a separate argument. */
5243 do_spec_1 (" ", 0, NULL
);
5247 /* Dump out the options accumulated previously using -Wp,. */
5249 for (i
= 0; i
< n_preprocessor_options
; i
++)
5251 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5252 /* Make each accumulated option a separate argument. */
5253 do_spec_1 (" ", 0, NULL
);
5257 /* Here are digits and numbers that just process
5258 a certain constant string as a spec. */
5261 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5267 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5273 value
= do_spec_1 (asm_spec
, 0, NULL
);
5279 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5286 const char *const spec
5287 = (input_file_compiler
->cpp_spec
5288 ? input_file_compiler
->cpp_spec
5290 value
= do_spec_1 (spec
, 0, NULL
);
5297 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5303 value
= do_spec_1 (link_spec
, 0, NULL
);
5309 value
= do_spec_1 (lib_spec
, 0, NULL
);
5315 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5321 /* We assume there is a directory
5322 separator at the end of this string. */
5323 if (target_system_root
)
5325 obstack_grow (&obstack
, target_system_root
,
5326 strlen (target_system_root
));
5327 if (target_sysroot_suffix
)
5328 obstack_grow (&obstack
, target_sysroot_suffix
,
5329 strlen (target_sysroot_suffix
));
5334 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5339 /* Here we define characters other than letters and digits. */
5342 p
= handle_braces (p
);
5348 p
= handle_spec_function (p
);
5354 obstack_1grow (&obstack
, '%');
5361 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5363 suffix_subst
= save_string (p
- 1, len
+ 1);
5368 /* Henceforth ignore the option(s) matching the pattern
5373 int have_wildcard
= 0;
5376 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5379 if (p
[len
-1] == '*')
5382 for (i
= 0; i
< n_switches
; i
++)
5383 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5384 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5386 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5387 switches
[i
].validated
= 1;
5395 if (soft_matched_part
)
5397 do_spec_1 (soft_matched_part
, 1, NULL
);
5398 do_spec_1 (" ", 0, NULL
);
5401 /* Catch the case where a spec string contains something like
5402 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5403 hand side of the :. */
5404 error ("spec failure: '%%*' has not been initialized by pattern match");
5407 /* Process a string found as the value of a spec given by name.
5408 This feature allows individual machine descriptions
5409 to add and use their own specs.
5410 %[...] modifies -D options the way %P does;
5411 %(...) uses the spec unmodified. */
5413 error ("warning: use of obsolete %%[ operator in specs");
5416 const char *name
= p
;
5417 struct spec_list
*sl
;
5420 /* The string after the S/P is the name of a spec that is to be
5422 while (*p
&& *p
!= ')' && *p
!= ']')
5425 /* See if it's in the list. */
5426 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5427 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5429 name
= *(sl
->ptr_spec
);
5431 notice ("Processing spec %c%s%c, which is '%s'\n",
5432 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5441 value
= do_spec_1 (name
, 0, NULL
);
5447 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5449 const char *y
= name
;
5452 /* Copy all of NAME into BUF, but put __ after
5453 every -D and at the end of each arg. */
5456 if (! strncmp (y
, "-D", 2))
5467 && (*y
== ' ' || *y
== '\t' || *y
== '='
5468 || *y
== '}' || *y
== 0))
5481 value
= do_spec_1 (buf
, 0, NULL
);
5487 /* Discard the closing paren or bracket. */
5494 error ("spec failure: unrecognized spec option '%c'", c
);
5500 /* Backslash: treat next character as ordinary. */
5505 /* Ordinary character: put it into the current argument. */
5506 obstack_1grow (&obstack
, c
);
5510 /* End of string. If we are processing a spec function, we need to
5511 end any pending argument. */
5512 if (processing_spec_function
)
5518 /* Look up a spec function. */
5520 static const struct spec_function
*
5521 lookup_spec_function (const char *name
)
5523 const struct spec_function
*sf
;
5525 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5526 if (strcmp (sf
->name
, name
) == 0)
5532 /* Evaluate a spec function. */
5535 eval_spec_function (const char *func
, const char *args
)
5537 const struct spec_function
*sf
;
5538 const char *funcval
;
5540 /* Saved spec processing context. */
5541 int save_argbuf_index
;
5542 int save_argbuf_length
;
5543 const char **save_argbuf
;
5546 int save_delete_this_arg
;
5547 int save_this_is_output_file
;
5548 int save_this_is_library_file
;
5549 int save_input_from_pipe
;
5550 const char *save_suffix_subst
;
5553 sf
= lookup_spec_function (func
);
5555 fatal ("unknown spec function '%s'", func
);
5557 /* Push the spec processing context. */
5558 save_argbuf_index
= argbuf_index
;
5559 save_argbuf_length
= argbuf_length
;
5560 save_argbuf
= argbuf
;
5562 save_arg_going
= arg_going
;
5563 save_delete_this_arg
= delete_this_arg
;
5564 save_this_is_output_file
= this_is_output_file
;
5565 save_this_is_library_file
= this_is_library_file
;
5566 save_input_from_pipe
= input_from_pipe
;
5567 save_suffix_subst
= suffix_subst
;
5569 /* Create a new spec processing context, and build the function
5573 if (do_spec_2 (args
) < 0)
5574 fatal ("error in args to spec function '%s'", func
);
5576 /* argbuf_index is an index for the next argument to be inserted, and
5577 so contains the count of the args already inserted. */
5579 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5581 /* Pop the spec processing context. */
5582 argbuf_index
= save_argbuf_index
;
5583 argbuf_length
= save_argbuf_length
;
5585 argbuf
= save_argbuf
;
5587 arg_going
= save_arg_going
;
5588 delete_this_arg
= save_delete_this_arg
;
5589 this_is_output_file
= save_this_is_output_file
;
5590 this_is_library_file
= save_this_is_library_file
;
5591 input_from_pipe
= save_input_from_pipe
;
5592 suffix_subst
= save_suffix_subst
;
5597 /* Handle a spec function call of the form:
5601 ARGS is processed as a spec in a separate context and split into an
5602 argument vector in the normal fashion. The function returns a string
5603 containing a spec which we then process in the caller's context, or
5604 NULL if no processing is required. */
5607 handle_spec_function (const char *p
)
5610 const char *endp
, *funcval
;
5613 processing_spec_function
++;
5615 /* Get the function name. */
5616 for (endp
= p
; *endp
!= '\0'; endp
++)
5618 if (*endp
== '(') /* ) */
5620 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5621 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5622 fatal ("malformed spec function name");
5624 if (*endp
!= '(') /* ) */
5625 fatal ("no arguments for spec function");
5626 func
= save_string (p
, endp
- p
);
5629 /* Get the arguments. */
5630 for (count
= 0; *endp
!= '\0'; endp
++)
5639 else if (*endp
== '(') /* ) */
5644 fatal ("malformed spec function arguments");
5645 args
= save_string (p
, endp
- p
);
5648 /* p now points to just past the end of the spec function expression. */
5650 funcval
= eval_spec_function (func
, args
);
5651 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5657 processing_spec_function
--;
5662 /* Inline subroutine of handle_braces. Returns true if the current
5663 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5665 input_suffix_matches (const char *atom
, const char *end_atom
)
5667 return (input_suffix
5668 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5669 && input_suffix
[end_atom
- atom
] == '\0');
5672 /* Subroutine of handle_braces. Returns true if the current
5673 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5675 input_spec_matches (const char *atom
, const char *end_atom
)
5677 return (input_file_compiler
5678 && input_file_compiler
->suffix
5679 && input_file_compiler
->suffix
[0] != '\0'
5680 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5682 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5685 /* Subroutine of handle_braces. Returns true if a switch
5686 matching the atom bracketed by ATOM and END_ATOM appeared on the
5689 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5692 int len
= end_atom
- atom
;
5693 int plen
= starred
? len
: -1;
5695 for (i
= 0; i
< n_switches
; i
++)
5696 if (!strncmp (switches
[i
].part1
, atom
, len
)
5697 && (starred
|| switches
[i
].part1
[len
] == '\0')
5698 && check_live_switch (i
, plen
))
5704 /* Inline subroutine of handle_braces. Mark all of the switches which
5705 match ATOM (extends to END_ATOM; STARRED indicates whether there
5706 was a star after the atom) for later processing. */
5708 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5711 int len
= end_atom
- atom
;
5712 int plen
= starred
? len
: -1;
5714 for (i
= 0; i
< n_switches
; i
++)
5715 if (!strncmp (switches
[i
].part1
, atom
, len
)
5716 && (starred
|| switches
[i
].part1
[len
] == '\0')
5717 && check_live_switch (i
, plen
))
5718 switches
[i
].ordering
= 1;
5721 /* Inline subroutine of handle_braces. Process all the currently
5722 marked switches through give_switch, and clear the marks. */
5724 process_marked_switches (void)
5728 for (i
= 0; i
< n_switches
; i
++)
5729 if (switches
[i
].ordering
== 1)
5731 switches
[i
].ordering
= 0;
5736 /* Handle a %{ ... } construct. P points just inside the leading {.
5737 Returns a pointer one past the end of the brace block, or 0
5738 if we call do_spec_1 and that returns -1. */
5741 handle_braces (const char *p
)
5743 const char *atom
, *end_atom
;
5744 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5745 const char *orig
= p
;
5753 bool a_must_be_last
= false;
5754 bool ordered_set
= false;
5755 bool disjunct_set
= false;
5756 bool disj_matched
= false;
5757 bool disj_starred
= true;
5758 bool n_way_choice
= false;
5759 bool n_way_matched
= false;
5761 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5768 /* Scan one "atom" (S in the description above of %{}, possibly
5769 with '!', '.', '@', ',', or '*' modifiers). */
5771 a_is_suffix
= false;
5772 a_is_starred
= false;
5773 a_is_negated
= false;
5774 a_is_spectype
= false;
5778 p
++, a_is_negated
= true;
5782 p
++, a_is_suffix
= true;
5784 p
++, a_is_spectype
= true;
5787 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5788 || *p
== ',' || *p
== '.' || *p
== '@')
5793 p
++, a_is_starred
= 1;
5799 /* Substitute the switch(es) indicated by the current atom. */
5801 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5802 || a_is_spectype
|| atom
== end_atom
)
5805 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5808 process_marked_switches ();
5812 /* Substitute some text if the current atom appears as a switch
5814 disjunct_set
= true;
5818 if (atom
== end_atom
)
5820 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5821 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5825 /* An empty term may appear as the last choice of an
5826 N-way choice set; it means "otherwise". */
5827 a_must_be_last
= true;
5828 disj_matched
= !n_way_matched
;
5829 disj_starred
= false;
5833 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5837 disj_starred
= false;
5839 /* Don't bother testing this atom if we already have a
5841 if (!disj_matched
&& !n_way_matched
)
5844 a_matched
= input_suffix_matches (atom
, end_atom
);
5845 else if (a_is_spectype
)
5846 a_matched
= input_spec_matches (atom
, end_atom
);
5848 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5850 if (a_matched
!= a_is_negated
)
5852 disj_matched
= true;
5854 d_end_atom
= end_atom
;
5861 /* Found the body, that is, the text to substitute if the
5862 current disjunction matches. */
5863 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5864 disj_matched
&& !n_way_matched
);
5868 /* If we have an N-way choice, reset state for the next
5872 n_way_choice
= true;
5873 n_way_matched
|= disj_matched
;
5874 disj_matched
= false;
5875 disj_starred
= true;
5876 d_atom
= d_end_atom
= NULL
;
5885 while (*p
++ != '}');
5890 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5895 /* Subroutine of handle_braces. Scan and process a brace substitution body
5896 (X in the description of %{} syntax). P points one past the colon;
5897 ATOM and END_ATOM bracket the first atom which was found to be true
5898 (present) in the current disjunction; STARRED indicates whether all
5899 the atoms in the current disjunction were starred (for syntax validation);
5900 MATCHED indicates whether the disjunction matched or not, and therefore
5901 whether or not the body is to be processed through do_spec_1 or just
5902 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5906 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5907 int starred
, int matched
)
5909 const char *body
, *end_body
;
5910 unsigned int nesting_level
;
5911 bool have_subst
= false;
5913 /* Locate the closing } or ;, honoring nested braces.
5914 Trim trailing whitespace. */
5923 if (!--nesting_level
)
5926 else if (*p
== ';' && nesting_level
== 1)
5928 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5930 else if (*p
== '\0')
5936 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5939 if (have_subst
&& !starred
)
5944 /* Copy the substitution body to permanent storage and execute it.
5945 If have_subst is false, this is a simple matter of running the
5946 body through do_spec_1... */
5947 char *string
= save_string (body
, end_body
- body
);
5950 if (do_spec_1 (string
, 0, NULL
) < 0)
5955 /* ... but if have_subst is true, we have to process the
5956 body once for each matching switch, with %* set to the
5957 variant part of the switch. */
5958 unsigned int hard_match_len
= end_atom
- atom
;
5961 for (i
= 0; i
< n_switches
; i
++)
5962 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5963 && check_live_switch (i
, hard_match_len
))
5965 if (do_spec_1 (string
, 0,
5966 &switches
[i
].part1
[hard_match_len
]) < 0)
5968 /* Pass any arguments this switch has. */
5970 suffix_subst
= NULL
;
5978 fatal ("braced spec body '%s' is invalid", body
);
5981 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5982 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5983 spec, or -1 if either exact match or %* is used.
5985 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5986 whose value does not begin with "no-" is obsoleted by the same value
5987 with the "no-", similarly for a switch with the "no-" prefix. */
5990 check_live_switch (int switchnum
, int prefix_length
)
5992 const char *name
= switches
[switchnum
].part1
;
5995 /* In the common case of {<at-most-one-letter>*}, a negating
5996 switch would always match, so ignore that case. We will just
5997 send the conflicting switches to the compiler phase. */
5998 if (prefix_length
>= 0 && prefix_length
<= 1)
6001 /* If we already processed this switch and determined if it was
6002 live or not, return our past determination. */
6003 if (switches
[switchnum
].live_cond
!= 0)
6004 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6005 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0);
6007 /* Now search for duplicate in a manner that depends on the name. */
6011 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6012 if (switches
[i
].part1
[0] == 'O')
6014 switches
[switchnum
].validated
= 1;
6015 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6020 case 'W': case 'f': case 'm':
6021 if (! strncmp (name
+ 1, "no-", 3))
6023 /* We have Xno-YYY, search for XYYY. */
6024 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6025 if (switches
[i
].part1
[0] == name
[0]
6026 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6028 switches
[switchnum
].validated
= 1;
6029 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6035 /* We have XYYY, search for Xno-YYY. */
6036 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6037 if (switches
[i
].part1
[0] == name
[0]
6038 && switches
[i
].part1
[1] == 'n'
6039 && switches
[i
].part1
[2] == 'o'
6040 && switches
[i
].part1
[3] == '-'
6041 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6043 switches
[switchnum
].validated
= 1;
6044 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6051 /* Otherwise the switch is live. */
6052 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6056 /* Pass a switch to the current accumulating command
6057 in the same form that we received it.
6058 SWITCHNUM identifies the switch; it is an index into
6059 the vector of switches gcc received, which is `switches'.
6060 This cannot fail since it never finishes a command line.
6062 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6065 give_switch (int switchnum
, int omit_first_word
)
6067 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6070 if (!omit_first_word
)
6072 do_spec_1 ("-", 0, NULL
);
6073 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6076 if (switches
[switchnum
].args
!= 0)
6079 for (p
= switches
[switchnum
].args
; *p
; p
++)
6081 const char *arg
= *p
;
6083 do_spec_1 (" ", 0, NULL
);
6086 unsigned length
= strlen (arg
);
6089 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6090 if (arg
[length
] == '.')
6092 (CONST_CAST(char *, arg
))[length
] = 0;
6096 do_spec_1 (arg
, 1, NULL
);
6098 (CONST_CAST(char *, arg
))[length
] = '.';
6099 do_spec_1 (suffix_subst
, 1, NULL
);
6102 do_spec_1 (arg
, 1, NULL
);
6106 do_spec_1 (" ", 0, NULL
);
6107 switches
[switchnum
].validated
= 1;
6110 /* Search for a file named NAME trying various prefixes including the
6111 user's -B prefix and some standard ones.
6112 Return the absolute file name found. If nothing is found, return NAME. */
6115 find_file (const char *name
)
6117 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6118 return newname
? newname
: name
;
6121 /* Determine whether a directory exists. If LINKER, return 0 for
6122 certain fixed names not needed by the linker. */
6125 is_directory (const char *path1
, bool linker
)
6132 /* Ensure the string ends with "/.". The resulting path will be a
6133 directory even if the given path is a symbolic link. */
6134 len1
= strlen (path1
);
6135 path
= (char *) alloca (3 + len1
);
6136 memcpy (path
, path1
, len1
);
6138 if (!IS_DIR_SEPARATOR (cp
[-1]))
6139 *cp
++ = DIR_SEPARATOR
;
6143 /* Exclude directories that the linker is known to search. */
6145 && IS_DIR_SEPARATOR (path
[0])
6147 && strncmp (path
+ 1, "lib", 3) == 0)
6149 && strncmp (path
+ 1, "usr", 3) == 0
6150 && IS_DIR_SEPARATOR (path
[4])
6151 && strncmp (path
+ 5, "lib", 3) == 0)))
6154 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6157 /* Set up the various global variables to indicate that we're processing
6158 the input file named FILENAME. */
6161 set_input (const char *filename
)
6165 input_filename
= filename
;
6166 input_filename_length
= strlen (input_filename
);
6168 input_basename
= input_filename
;
6169 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6170 /* Skip drive name so 'x:foo' is handled properly. */
6171 if (input_basename
[1] == ':')
6172 input_basename
+= 2;
6174 for (p
= input_basename
; *p
; p
++)
6175 if (IS_DIR_SEPARATOR (*p
))
6176 input_basename
= p
+ 1;
6178 /* Find a suffix starting with the last period,
6179 and set basename_length to exclude that suffix. */
6180 basename_length
= strlen (input_basename
);
6181 suffixed_basename_length
= basename_length
;
6182 p
= input_basename
+ basename_length
;
6183 while (p
!= input_basename
&& *p
!= '.')
6185 if (*p
== '.' && p
!= input_basename
)
6187 basename_length
= p
- input_basename
;
6188 input_suffix
= p
+ 1;
6193 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6194 we will need to do a stat on the input_filename. The
6195 INPUT_STAT_SET signals that the stat is needed. */
6199 /* On fatal signals, delete all the temporary files. */
6202 fatal_error (int signum
)
6204 signal (signum
, SIG_DFL
);
6205 delete_failure_queue ();
6206 delete_temp_files ();
6207 /* Get the same signal again, this time not handled,
6208 so its normal effect occurs. */
6209 kill (getpid (), signum
);
6212 extern int main (int, char **);
6215 main (int argc
, char **argv
)
6219 int linker_was_run
= 0;
6220 int lang_n_infiles
= 0;
6221 int num_linker_inputs
= 0;
6222 char *explicit_link_files
;
6225 struct user_specs
*uptr
;
6226 char **old_argv
= argv
;
6228 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6229 on ?: in file-scope variable initializations. */
6230 asm_debug
= ASM_DEBUG_SPEC
;
6232 p
= argv
[0] + strlen (argv
[0]);
6233 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6237 xmalloc_set_program_name (programname
);
6239 expandargv (&argc
, &argv
);
6241 /* Determine if any expansions were made. */
6242 if (argv
!= old_argv
)
6243 at_file_supplied
= true;
6245 prune_options (&argc
, &argv
);
6247 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6248 /* Perform host dependent initialization when needed. */
6249 GCC_DRIVER_HOST_INITIALIZATION
;
6252 /* Unlock the stdio streams. */
6253 unlock_std_streams ();
6255 gcc_init_libintl ();
6257 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6258 signal (SIGINT
, fatal_error
);
6260 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6261 signal (SIGHUP
, fatal_error
);
6263 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6264 signal (SIGTERM
, fatal_error
);
6266 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6267 signal (SIGPIPE
, fatal_error
);
6270 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6271 receive the signal. A different setting is inheritable */
6272 signal (SIGCHLD
, SIG_DFL
);
6275 /* Allocate the argument vector. */
6278 obstack_init (&obstack
);
6280 /* Build multilib_select, et. al from the separate lines that make up each
6281 multilib selection. */
6283 const char *const *q
= multilib_raw
;
6286 obstack_init (&multilib_obstack
);
6287 while ((p
= *q
++) != (char *) 0)
6288 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6290 obstack_1grow (&multilib_obstack
, 0);
6291 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6293 q
= multilib_matches_raw
;
6294 while ((p
= *q
++) != (char *) 0)
6295 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6297 obstack_1grow (&multilib_obstack
, 0);
6298 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6300 q
= multilib_exclusions_raw
;
6301 while ((p
= *q
++) != (char *) 0)
6302 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6304 obstack_1grow (&multilib_obstack
, 0);
6305 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6308 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6311 obstack_1grow (&multilib_obstack
, ' ');
6312 obstack_grow (&multilib_obstack
,
6313 multilib_defaults_raw
[i
],
6314 strlen (multilib_defaults_raw
[i
]));
6318 obstack_1grow (&multilib_obstack
, 0);
6319 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6322 /* Set up to remember the pathname of gcc and any options
6323 needed for collect. We use argv[0] instead of programname because
6324 we need the complete pathname. */
6325 obstack_init (&collect_obstack
);
6326 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6327 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6328 xputenv (XOBFINISH (&collect_obstack
, char *));
6330 #ifdef INIT_ENVIRONMENT
6331 /* Set up any other necessary machine specific environment variables. */
6332 xputenv (INIT_ENVIRONMENT
);
6335 /* Make a table of what switches there are (switches, n_switches).
6336 Make a table of specified input files (infiles, n_infiles).
6337 Decode switches that are handled locally. */
6339 process_command (argc
, (const char **) argv
);
6341 /* Initialize the vector of specs to just the default.
6342 This means one element containing 0s, as a terminator. */
6344 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6345 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6346 n_compilers
= n_default_compilers
;
6348 /* Read specs from a file if there is one. */
6350 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6351 spec_version
, dir_separator_str
, NULL
);
6352 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6354 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6355 /* Read the specs file unless it is a default one. */
6356 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6357 read_specs (specs_file
, TRUE
);
6361 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6362 for any override of as, ld and libraries. */
6363 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6364 + strlen (just_machine_suffix
) + sizeof ("specs"));
6366 strcpy (specs_file
, standard_exec_prefix
);
6367 strcat (specs_file
, just_machine_suffix
);
6368 strcat (specs_file
, "specs");
6369 if (access (specs_file
, R_OK
) == 0)
6370 read_specs (specs_file
, TRUE
);
6372 /* Process any configure-time defaults specified for the command line
6373 options, via OPTION_DEFAULT_SPECS. */
6374 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6375 do_option_spec (option_default_specs
[i
].name
,
6376 option_default_specs
[i
].spec
);
6378 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6379 of the command line. */
6381 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6382 do_self_spec (driver_self_specs
[i
]);
6384 /* If not cross-compiling, look for executables in the standard
6386 if (*cross_compile
== '0')
6388 if (*md_exec_prefix
)
6390 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6391 PREFIX_PRIORITY_LAST
, 0, 0);
6395 /* Process sysroot_suffix_spec. */
6396 if (*sysroot_suffix_spec
!= 0
6397 && do_spec_2 (sysroot_suffix_spec
) == 0)
6399 if (argbuf_index
> 1)
6400 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6401 else if (argbuf_index
== 1)
6402 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6405 #ifdef HAVE_LD_SYSROOT
6406 /* Pass the --sysroot option to the linker, if it supports that. If
6407 there is a sysroot_suffix_spec, it has already been processed by
6408 this point, so target_system_root really is the system root we
6410 if (target_system_root
)
6412 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6413 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6414 set_spec ("link", XOBFINISH (&obstack
, const char *));
6418 /* Process sysroot_hdrs_suffix_spec. */
6419 if (*sysroot_hdrs_suffix_spec
!= 0
6420 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6422 if (argbuf_index
> 1)
6423 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6424 else if (argbuf_index
== 1)
6425 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6428 /* Look for startfiles in the standard places. */
6429 if (*startfile_prefix_spec
!= 0
6430 && do_spec_2 (startfile_prefix_spec
) == 0
6431 && do_spec_1 (" ", 0, NULL
) == 0)
6434 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6435 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6436 PREFIX_PRIORITY_LAST
, 0, 1);
6438 /* We should eventually get rid of all these and stick to
6439 startfile_prefix_spec exclusively. */
6440 else if (*cross_compile
== '0' || target_system_root
)
6442 if (*md_startfile_prefix
)
6443 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6444 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6446 if (*md_startfile_prefix_1
)
6447 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6448 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6450 /* If standard_startfile_prefix is relative, base it on
6451 standard_exec_prefix. This lets us move the installed tree
6452 as a unit. If GCC_EXEC_PREFIX is defined, base
6453 standard_startfile_prefix on that as well.
6455 If the prefix is relative, only search it for native compilers;
6456 otherwise we will search a directory containing host libraries. */
6457 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6458 add_sysrooted_prefix (&startfile_prefixes
,
6459 standard_startfile_prefix
, "BINUTILS",
6460 PREFIX_PRIORITY_LAST
, 0, 1);
6461 else if (*cross_compile
== '0')
6463 add_prefix (&startfile_prefixes
,
6464 concat (gcc_exec_prefix
6465 ? gcc_exec_prefix
: standard_exec_prefix
,
6467 standard_startfile_prefix
, NULL
),
6468 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6471 /* Sysrooted prefixes are relocated because target_system_root is
6472 also relocated by gcc_exec_prefix. */
6473 if (*standard_startfile_prefix_1
)
6474 add_sysrooted_prefix (&startfile_prefixes
,
6475 standard_startfile_prefix_1
, "BINUTILS",
6476 PREFIX_PRIORITY_LAST
, 0, 1);
6477 if (*standard_startfile_prefix_2
)
6478 add_sysrooted_prefix (&startfile_prefixes
,
6479 standard_startfile_prefix_2
, "BINUTILS",
6480 PREFIX_PRIORITY_LAST
, 0, 1);
6483 /* Process any user specified specs in the order given on the command
6485 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6487 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6489 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6492 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6493 if (gcc_exec_prefix
)
6494 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6495 spec_version
, dir_separator_str
, NULL
);
6497 /* Now we have the specs.
6498 Set the `valid' bits for switches that match anything in any spec. */
6500 validate_all_switches ();
6502 /* Now that we have the switches and the specs, set
6503 the subdirectory based on the options. */
6504 set_multilib_dir ();
6506 /* Warn about any switches that no pass was interested in. */
6508 for (i
= 0; (int) i
< n_switches
; i
++)
6509 if (! switches
[i
].validated
)
6510 error ("unrecognized option '-%s'", switches
[i
].part1
);
6512 /* Obey some of the options. */
6514 if (print_search_dirs
)
6516 printf (_("install: %s%s\n"),
6517 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6518 gcc_exec_prefix
? "" : machine_suffix
);
6519 printf (_("programs: %s\n"),
6520 build_search_list (&exec_prefixes
, "", false, false));
6521 printf (_("libraries: %s\n"),
6522 build_search_list (&startfile_prefixes
, "", false, true));
6526 if (print_file_name
)
6528 printf ("%s\n", find_file (print_file_name
));
6532 if (print_prog_name
)
6534 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6535 printf ("%s\n", (newname
? newname
: print_prog_name
));
6539 if (print_multi_lib
)
6541 print_multilib_info ();
6545 if (print_multi_directory
)
6547 if (multilib_dir
== NULL
)
6550 printf ("%s\n", multilib_dir
);
6556 if (target_system_root
)
6558 if (target_sysroot_suffix
)
6559 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6561 printf ("%s\n", target_system_root
);
6566 if (print_multi_os_directory
)
6568 if (multilib_os_dir
== NULL
)
6571 printf ("%s\n", multilib_os_dir
);
6575 if (print_sysroot_headers_suffix
)
6577 if (*sysroot_hdrs_suffix_spec
)
6579 printf("%s\n", (target_sysroot_hdrs_suffix
6580 ? target_sysroot_hdrs_suffix
6585 /* The error status indicates that only one set of fixed
6586 headers should be built. */
6587 fatal ("not configured with sysroot headers suffix");
6590 if (print_help_list
)
6596 printf (_("\nFor bug reporting instructions, please see:\n"));
6597 printf ("%s.\n", bug_report_url
);
6602 /* We do not exit here. Instead we have created a fake input file
6603 called 'help-dummy' which needs to be compiled, and we pass this
6604 on the various sub-processes, along with the --help switch. */
6612 notice ("Target: %s\n", spec_machine
);
6613 notice ("Configured with: %s\n", configuration_arguments
);
6615 #ifdef THREAD_MODEL_SPEC
6616 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6617 but there's no point in doing all this processing just to get
6618 thread_model back. */
6619 obstack_init (&obstack
);
6620 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6621 obstack_1grow (&obstack
, '\0');
6622 thrmod
= XOBFINISH (&obstack
, const char *);
6624 thrmod
= thread_model
;
6627 notice ("Thread model: %s\n", thrmod
);
6629 /* compiler_version is truncated at the first space when initialized
6630 from version string, so truncate version_string at the first space
6631 before comparing. */
6632 for (n
= 0; version_string
[n
]; n
++)
6633 if (version_string
[n
] == ' ')
6636 if (! strncmp (version_string
, compiler_version
, n
)
6637 && compiler_version
[n
] == 0)
6638 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
6640 notice ("gcc driver version %s %sexecuting gcc version %s\n",
6641 version_string
, pkgversion_string
, compiler_version
);
6647 if (n_infiles
== added_libraries
)
6648 fatal ("no input files");
6650 /* Make a place to record the compiler output file names
6651 that correspond to the input files. */
6654 i
+= lang_specific_extra_outfiles
;
6655 outfiles
= XCNEWVEC (const char *, i
);
6657 /* Record which files were specified explicitly as link input. */
6659 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6662 combine_inputs
= true;
6664 combine_inputs
= false;
6666 for (i
= 0; (int) i
< n_infiles
; i
++)
6668 const char *name
= infiles
[i
].name
;
6669 struct compiler
*compiler
= lookup_compiler (name
,
6671 infiles
[i
].language
);
6673 if (compiler
&& !(compiler
->combinable
))
6674 combine_inputs
= false;
6676 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6677 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6678 infiles
[i
].incompiler
= compiler
;
6682 input_file_compiler
= compiler
;
6683 infiles
[i
].incompiler
= compiler
;
6687 /* Since there is no compiler for this input file, assume it is a
6689 explicit_link_files
[i
] = 1;
6690 infiles
[i
].incompiler
= NULL
;
6692 infiles
[i
].compiled
= false;
6693 infiles
[i
].preprocessed
= false;
6696 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6697 fatal ("cannot specify -o with -c or -S with multiple files");
6699 if (combine_flag
&& save_temps_flag
)
6701 bool save_combine_inputs
= combine_inputs
;
6702 /* Must do a separate pre-processing pass for C & Objective-C files, to
6703 obtain individual .i files. */
6705 combine_inputs
= false;
6706 for (i
= 0; (int) i
< n_infiles
; i
++)
6708 int this_file_error
= 0;
6710 input_file_number
= i
;
6711 set_input (infiles
[i
].name
);
6712 if (infiles
[i
].incompiler
6713 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6714 input_file_compiler
= infiles
[i
].incompiler
;
6718 if (input_file_compiler
)
6720 if (input_file_compiler
->spec
[0] == '#')
6722 error ("%s: %s compiler not installed on this system",
6723 input_filename
, &input_file_compiler
->spec
[1]);
6724 this_file_error
= 1;
6728 value
= do_spec (input_file_compiler
->spec
);
6729 infiles
[i
].preprocessed
= true;
6730 if (!have_o_argbuf_index
)
6731 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6732 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6733 infiles
[i
].incompiler
6734 = lookup_compiler (infiles
[i
].name
,
6735 strlen (infiles
[i
].name
),
6736 infiles
[i
].language
);
6739 this_file_error
= 1;
6743 if (this_file_error
)
6745 delete_failure_queue ();
6749 clear_failure_queue ();
6751 combine_inputs
= save_combine_inputs
;
6754 for (i
= 0; (int) i
< n_infiles
; i
++)
6756 int this_file_error
= 0;
6758 /* Tell do_spec what to substitute for %i. */
6760 input_file_number
= i
;
6761 set_input (infiles
[i
].name
);
6763 if (infiles
[i
].compiled
)
6766 /* Use the same thing in %o, unless cp->spec says otherwise. */
6768 outfiles
[i
] = input_filename
;
6770 /* Figure out which compiler from the file's suffix. */
6772 if (! combine_inputs
)
6774 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6775 infiles
[i
].language
);
6777 input_file_compiler
= infiles
[i
].incompiler
;
6779 if (input_file_compiler
)
6781 /* Ok, we found an applicable compiler. Run its spec. */
6783 if (input_file_compiler
->spec
[0] == '#')
6785 error ("%s: %s compiler not installed on this system",
6786 input_filename
, &input_file_compiler
->spec
[1]);
6787 this_file_error
= 1;
6791 value
= do_spec (input_file_compiler
->spec
);
6792 infiles
[i
].compiled
= true;
6794 this_file_error
= 1;
6798 /* If this file's name does not contain a recognized suffix,
6799 record it as explicit linker input. */
6802 explicit_link_files
[i
] = 1;
6804 /* Clear the delete-on-failure queue, deleting the files in it
6805 if this compilation failed. */
6807 if (this_file_error
)
6809 delete_failure_queue ();
6812 /* If this compilation succeeded, don't delete those files later. */
6813 clear_failure_queue ();
6816 /* Reset the input file name to the first compile/object file name, for use
6817 with %b in LINK_SPEC. We use the first input file that we can find
6818 a compiler to compile it instead of using infiles.language since for
6819 languages other than C we use aliases that we then lookup later. */
6824 for (i
= 0; i
< n_infiles
; i
++)
6825 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6827 set_input (infiles
[i
].name
);
6832 if (error_count
== 0)
6834 /* Make sure INPUT_FILE_NUMBER points to first available open
6836 input_file_number
= n_infiles
;
6837 if (lang_specific_pre_link ())
6841 /* Determine if there are any linker input files. */
6842 num_linker_inputs
= 0;
6843 for (i
= 0; (int) i
< n_infiles
; i
++)
6844 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6845 num_linker_inputs
++;
6847 /* Run ld to link all the compiler output files. */
6849 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
6851 int tmp
= execution_count
;
6853 /* We'll use ld if we can't find collect2. */
6854 if (! strcmp (linker_name_spec
, "collect2"))
6856 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6858 linker_name_spec
= "ld";
6860 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6862 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6863 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6865 if (print_subprocess_help
== 1)
6867 printf (_("\nLinker options\n==============\n\n"));
6868 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6869 " to the linker.\n\n"));
6872 value
= do_spec (link_command_spec
);
6875 linker_was_run
= (tmp
!= execution_count
);
6878 /* If options said don't run linker,
6879 complain about input files to be given to the linker. */
6881 if (! linker_was_run
&& error_count
== 0)
6882 for (i
= 0; (int) i
< n_infiles
; i
++)
6883 if (explicit_link_files
[i
]
6884 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6885 error ("%s: linker input file unused because linking not done",
6888 /* Delete some or all of the temporary files we made. */
6891 delete_failure_queue ();
6892 delete_temp_files ();
6894 if (print_help_list
)
6896 printf (("\nFor bug reporting instructions, please see:\n"));
6897 printf ("%s\n", bug_report_url
);
6900 return (signal_count
!= 0 ? 2
6901 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6905 /* Find the proper compilation spec for the file name NAME,
6906 whose length is LENGTH. LANGUAGE is the specified language,
6907 or 0 if this file is to be passed to the linker. */
6909 static struct compiler
*
6910 lookup_compiler (const char *name
, size_t length
, const char *language
)
6912 struct compiler
*cp
;
6914 /* If this was specified by the user to be a linker input, indicate that. */
6915 if (language
!= 0 && language
[0] == '*')
6918 /* Otherwise, look for the language, if one is spec'd. */
6921 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6922 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6925 error ("language %s not recognized", language
);
6929 /* Look for a suffix. */
6930 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6932 if (/* The suffix `-' matches only the file name `-'. */
6933 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6934 || (strlen (cp
->suffix
) < length
6935 /* See if the suffix matches the end of NAME. */
6936 && !strcmp (cp
->suffix
,
6937 name
+ length
- strlen (cp
->suffix
))
6942 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6943 /* Look again, but case-insensitively this time. */
6945 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6947 if (/* The suffix `-' matches only the file name `-'. */
6948 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6949 || (strlen (cp
->suffix
) < length
6950 /* See if the suffix matches the end of NAME. */
6951 && ((!strcmp (cp
->suffix
,
6952 name
+ length
- strlen (cp
->suffix
))
6953 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6954 && !strcasecmp (cp
->suffix
,
6955 name
+ length
- strlen (cp
->suffix
)))
6961 if (cp
>= compilers
)
6963 if (cp
->spec
[0] != '@')
6964 /* A non-alias entry: return it. */
6967 /* An alias entry maps a suffix to a language.
6968 Search for the language; pass 0 for NAME and LENGTH
6969 to avoid infinite recursion if language not found. */
6970 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6976 save_string (const char *s
, int len
)
6978 char *result
= XNEWVEC (char, len
+ 1);
6980 memcpy (result
, s
, len
);
6986 pfatal_with_name (const char *name
)
6988 perror_with_name (name
);
6989 delete_temp_files ();
6994 perror_with_name (const char *name
)
6996 error ("%s: %s", name
, xstrerror (errno
));
6999 /* Output an error message and exit. */
7002 fancy_abort (const char *file
, int line
, const char *func
)
7004 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
7007 /* Output an error message and exit. */
7010 fatal_ice (const char *cmsgid
, ...)
7014 va_start (ap
, cmsgid
);
7016 fprintf (stderr
, "%s: ", programname
);
7017 vfprintf (stderr
, _(cmsgid
), ap
);
7019 fprintf (stderr
, "\n");
7020 delete_temp_files ();
7021 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7025 fatal (const char *cmsgid
, ...)
7029 va_start (ap
, cmsgid
);
7031 fprintf (stderr
, "%s: ", programname
);
7032 vfprintf (stderr
, _(cmsgid
), ap
);
7034 fprintf (stderr
, "\n");
7035 delete_temp_files ();
7039 /* The argument is actually c-format, not gcc-internal-format,
7040 but because functions with identical names are used through
7041 the rest of the compiler with gcc-internal-format, we just
7042 need to hope all users of these functions use the common
7043 subset between c-format and gcc-internal-format. */
7046 error (const char *gmsgid
, ...)
7050 va_start (ap
, gmsgid
);
7051 fprintf (stderr
, "%s: ", programname
);
7052 vfprintf (stderr
, _(gmsgid
), ap
);
7055 fprintf (stderr
, "\n");
7059 notice (const char *cmsgid
, ...)
7063 va_start (ap
, cmsgid
);
7064 vfprintf (stderr
, _(cmsgid
), ap
);
7069 validate_switches_from_spec (const char *spec
)
7071 const char *p
= spec
;
7074 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7075 /* We have a switch spec. */
7076 p
= validate_switches (p
+ 1);
7080 validate_all_switches (void)
7082 struct compiler
*comp
;
7083 struct spec_list
*spec
;
7085 for (comp
= compilers
; comp
->spec
; comp
++)
7086 validate_switches_from_spec (comp
->spec
);
7088 /* Look through the linked list of specs read from the specs file. */
7089 for (spec
= specs
; spec
; spec
= spec
->next
)
7090 validate_switches_from_spec (*spec
->ptr_spec
);
7092 validate_switches_from_spec (link_command_spec
);
7095 /* Look at the switch-name that comes after START
7096 and mark as valid all supplied switches that match it. */
7099 validate_switches (const char *start
)
7101 const char *p
= start
;
7105 bool suffix
= false;
7106 bool starred
= false;
7108 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7117 if (*p
== '.' || *p
== ',')
7121 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7122 || *p
== ',' || *p
== '.' || *p
== '@')
7127 starred
= true, p
++;
7133 /* Mark all matching switches as valid. */
7134 for (i
= 0; i
< n_switches
; i
++)
7135 if (!strncmp (switches
[i
].part1
, atom
, len
)
7136 && (starred
|| switches
[i
].part1
[len
] == 0))
7137 switches
[i
].validated
= 1;
7141 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7144 if (*p
&& p
[-1] == ':')
7146 while (*p
&& *p
!= ';' && *p
!= '}')
7151 if (*p
== '{' || *p
== '<')
7152 p
= validate_switches (p
+1);
7153 else if (p
[0] == 'W' && p
[1] == '{')
7154 p
= validate_switches (p
+2);
7161 if (*p
&& p
[-1] == ';')
7175 static struct mdswitchstr
*mdswitches
;
7176 static int n_mdswitches
;
7178 /* Check whether a particular argument was used. The first time we
7179 canonicalize the switches to keep only the ones we care about. */
7182 used_arg (const char *p
, int len
)
7187 const char *replace
;
7192 static struct mswitchstr
*mswitches
;
7193 static int n_mswitches
;
7198 struct mswitchstr
*matches
;
7202 /* Break multilib_matches into the component strings of string
7203 and replacement string. */
7204 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7209 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7211 q
= multilib_matches
;
7220 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7224 matches
[i
].len
= q
- matches
[i
].str
;
7226 matches
[i
].replace
= ++q
;
7227 while (*q
!= ';' && *q
!= '\0')
7230 goto invalid_matches
;
7233 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7239 /* Now build a list of the replacement string for switches that we care
7240 about. Make sure we allocate at least one entry. This prevents
7241 xmalloc from calling fatal, and prevents us from re-executing this
7244 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7245 for (i
= 0; i
< n_switches
; i
++)
7246 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7248 int xlen
= strlen (switches
[i
].part1
);
7249 for (j
= 0; j
< cnt
; j
++)
7250 if (xlen
== matches
[j
].len
7251 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7253 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7254 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7255 mswitches
[n_mswitches
].replace
= (char *) 0;
7256 mswitches
[n_mswitches
].rep_len
= 0;
7262 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7263 on the command line nor any options mutually incompatible with
7265 for (i
= 0; i
< n_mdswitches
; i
++)
7269 for (q
= multilib_options
; *q
!= '\0'; q
++)
7275 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7276 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7278 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7285 if (*q
!= ' ' && *q
!= '\0')
7287 while (*r
!= ' ' && *r
!= '\0')
7290 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7293 if (used_arg (r
, q
- r
))
7298 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7299 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7300 mswitches
[n_mswitches
].replace
= (char *) 0;
7301 mswitches
[n_mswitches
].rep_len
= 0;
7314 for (i
= 0; i
< n_mswitches
; i
++)
7315 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7322 default_arg (const char *p
, int len
)
7326 for (i
= 0; i
< n_mdswitches
; i
++)
7327 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7333 /* Work out the subdirectory to use based on the options. The format of
7334 multilib_select is a list of elements. Each element is a subdirectory
7335 name followed by a list of options followed by a semicolon. The format
7336 of multilib_exclusions is the same, but without the preceding
7337 directory. First gcc will check the exclusions, if none of the options
7338 beginning with an exclamation point are present, and all of the other
7339 options are present, then we will ignore this completely. Passing
7340 that, gcc will consider each multilib_select in turn using the same
7341 rules for matching the options. If a match is found, that subdirectory
7345 set_multilib_dir (void)
7348 unsigned int this_path_len
;
7349 const char *this_path
, *this_arg
;
7350 const char *start
, *end
;
7352 int ok
, ndfltok
, first
;
7355 start
= multilib_defaults
;
7356 while (*start
== ' ' || *start
== '\t')
7358 while (*start
!= '\0')
7361 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7363 while (*start
== ' ' || *start
== '\t')
7371 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7372 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7374 while (*start
== ' ' || *start
== '\t')
7380 for (end
= start
+ 1;
7381 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7384 obstack_grow (&multilib_obstack
, start
, end
- start
);
7385 obstack_1grow (&multilib_obstack
, 0);
7386 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7387 mdswitches
[i
++].len
= end
- start
;
7394 p
= multilib_exclusions
;
7397 /* Ignore newlines. */
7404 /* Check the arguments. */
7411 fatal ("multilib exclusions '%s' is invalid",
7412 multilib_exclusions
);
7422 while (*p
!= ' ' && *p
!= ';')
7425 goto invalid_exclusions
;
7429 if (*this_arg
!= '!')
7437 ok
= used_arg (this_arg
, p
- this_arg
);
7452 p
= multilib_select
;
7455 /* Ignore newlines. */
7462 /* Get the initial path. */
7469 fatal ("multilib select '%s' is invalid",
7474 this_path_len
= p
- this_path
;
7476 /* Check the arguments. */
7483 goto invalid_select
;
7492 while (*p
!= ' ' && *p
!= ';')
7495 goto invalid_select
;
7499 if (*this_arg
!= '!')
7507 /* If this is a default argument, we can just ignore it.
7508 This is true even if this_arg begins with '!'. Beginning
7509 with '!' does not mean that this argument is necessarily
7510 inappropriate for this library: it merely means that
7511 there is a more specific library which uses this
7512 argument. If this argument is a default, we need not
7513 consider that more specific library. */
7514 ok
= used_arg (this_arg
, p
- this_arg
);
7521 if (default_arg (this_arg
, p
- this_arg
))
7530 if (this_path_len
!= 1
7531 || this_path
[0] != '.')
7533 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7536 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7537 new_multilib_dir
[this_path_len
] = '\0';
7538 q
= strchr (new_multilib_dir
, ':');
7541 multilib_dir
= new_multilib_dir
;
7548 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7550 while (q
< end
&& *q
!= ':')
7554 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7555 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7556 new_multilib_os_dir
[end
- q
- 1] = '\0';
7557 multilib_os_dir
= new_multilib_os_dir
;
7565 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7566 && strcmp (multilib_os_dir
, ".") == 0)
7568 free (CONST_CAST (char *, multilib_os_dir
));
7569 multilib_os_dir
= NULL
;
7571 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7572 multilib_os_dir
= multilib_dir
;
7575 /* Print out the multiple library subdirectory selection
7576 information. This prints out a series of lines. Each line looks
7577 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7578 required. Only the desired options are printed out, the negative
7579 matches. The options are print without a leading dash. There are
7580 no spaces to make it easy to use the information in the shell.
7581 Each subdirectory is printed only once. This assumes the ordering
7582 generated by the genmultilib script. Also, we leave out ones that match
7586 print_multilib_info (void)
7588 const char *p
= multilib_select
;
7589 const char *last_path
= 0, *this_path
;
7591 unsigned int last_path_len
= 0;
7596 /* Ignore newlines. */
7603 /* Get the initial path. */
7610 fatal ("multilib select '%s' is invalid", multilib_select
);
7616 /* When --disable-multilib was used but target defines
7617 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7618 to find multilib_os_dir, so skip them from output. */
7619 if (this_path
[0] == '.' && this_path
[1] == ':')
7622 /* Check for matches with the multilib_exclusions. We don't bother
7623 with the '!' in either list. If any of the exclusion rules match
7624 all of its options with the select rule, we skip it. */
7626 const char *e
= multilib_exclusions
;
7627 const char *this_arg
;
7632 /* Ignore newlines. */
7639 /* Check the arguments. */
7648 fatal ("multilib exclusion '%s' is invalid",
7649 multilib_exclusions
);
7660 while (*e
!= ' ' && *e
!= ';')
7663 goto invalid_exclusion
;
7671 int len
= e
- this_arg
;
7674 goto invalid_select
;
7678 while (*q
!= ' ' && *q
!= ';')
7681 goto invalid_select
;
7685 if (! strncmp (arg
, this_arg
,
7686 (len
< q
- arg
) ? q
- arg
: len
)
7687 || default_arg (this_arg
, e
- this_arg
))
7717 /* If this is a duplicate, skip it. */
7718 skip
= (last_path
!= 0
7719 && (unsigned int) (p
- this_path
) == last_path_len
7720 && ! strncmp (last_path
, this_path
, last_path_len
));
7722 last_path
= this_path
;
7723 last_path_len
= p
- this_path
;
7726 /* If this directory requires any default arguments, we can skip
7727 it. We will already have printed a directory identical to
7728 this one which does not require that default argument. */
7739 goto invalid_select
;
7746 while (*q
!= ' ' && *q
!= ';')
7749 goto invalid_select
;
7754 && default_arg (arg
, q
- arg
))
7769 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7780 goto invalid_select
;
7788 use_arg
= *p
!= '!';
7793 while (*p
!= ' ' && *p
!= ';')
7796 goto invalid_select
;
7808 /* If there are extra options, print them now. */
7809 if (multilib_extra
&& *multilib_extra
)
7811 int print_at
= TRUE
;
7814 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7835 /* getenv built-in spec function.
7837 Returns the value of the environment variable given by its first
7838 argument, concatenated with the second argument. If the
7839 environment variable is not defined, a fatal error is issued. */
7842 getenv_spec_function (int argc
, const char **argv
)
7852 value
= getenv (argv
[0]);
7854 fatal ("environment variable \"%s\" not defined", argv
[0]);
7856 /* We have to escape every character of the environment variable so
7857 they are not interpreted as active spec characters. A
7858 particularly painful case is when we are reading a variable
7859 holding a windows path complete with \ separators. */
7860 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7861 result
= XNEWVAR (char, len
);
7862 for (ptr
= result
; *value
; ptr
+= 2)
7868 strcpy (ptr
, argv
[1]);
7873 /* if-exists built-in spec function.
7875 Checks to see if the file specified by the absolute pathname in
7876 ARGS exists. Returns that pathname if found.
7878 The usual use for this function is to check for a library file
7879 (whose name has been expanded with %s). */
7882 if_exists_spec_function (int argc
, const char **argv
)
7884 /* Must have only one argument. */
7885 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7891 /* if-exists-else built-in spec function.
7893 This is like if-exists, but takes an additional argument which
7894 is returned if the first argument does not exist. */
7897 if_exists_else_spec_function (int argc
, const char **argv
)
7899 /* Must have exactly two arguments. */
7903 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7909 /* replace-outfile built-in spec function.
7911 This looks for the first argument in the outfiles array's name and
7912 replaces it with the second argument. */
7915 replace_outfile_spec_function (int argc
, const char **argv
)
7918 /* Must have exactly two arguments. */
7922 for (i
= 0; i
< n_infiles
; i
++)
7924 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7925 outfiles
[i
] = xstrdup (argv
[1]);
7930 /* Given two version numbers, compares the two numbers.
7931 A version number must match the regular expression
7932 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7935 compare_version_strings (const char *v1
, const char *v2
)
7940 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7941 REG_EXTENDED
| REG_NOSUB
) != 0)
7943 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7944 if (rresult
== REG_NOMATCH
)
7945 fatal ("invalid version number `%s'", v1
);
7946 else if (rresult
!= 0)
7948 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7949 if (rresult
== REG_NOMATCH
)
7950 fatal ("invalid version number `%s'", v2
);
7951 else if (rresult
!= 0)
7954 return strverscmp (v1
, v2
);
7958 /* version_compare built-in spec function.
7960 This takes an argument of the following form:
7962 <comparison-op> <arg1> [<arg2>] <switch> <result>
7964 and produces "result" if the comparison evaluates to true,
7965 and nothing if it doesn't.
7967 The supported <comparison-op> values are:
7969 >= true if switch is a later (or same) version than arg1
7971 < true if switch is an earlier version than arg1
7973 >< true if switch is arg1 or later, and earlier than arg2
7974 <> true if switch is earlier than arg1 or is arg2 or later
7976 If the switch is not present, the condition is false unless
7977 the first character of the <comparison-op> is '!'.
7980 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7981 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7984 version_compare_spec_function (int argc
, const char **argv
)
7988 const char *switch_value
= NULL
;
7993 fatal ("too few arguments to %%:version-compare");
7994 if (argv
[0][0] == '\0')
7996 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7998 if (argc
!= nargs
+ 3)
7999 fatal ("too many arguments to %%:version-compare");
8001 switch_len
= strlen (argv
[nargs
+ 1]);
8002 for (i
= 0; i
< n_switches
; i
++)
8003 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8004 && check_live_switch (i
, switch_len
))
8005 switch_value
= switches
[i
].part1
+ switch_len
;
8007 if (switch_value
== NULL
)
8011 comp1
= compare_version_strings (switch_value
, argv
[1]);
8013 comp2
= compare_version_strings (switch_value
, argv
[2]);
8015 comp2
= -1; /* This value unused. */
8018 switch (argv
[0][0] << 8 | argv
[0][1])
8020 case '>' << 8 | '=':
8021 result
= comp1
>= 0;
8023 case '!' << 8 | '<':
8024 result
= comp1
>= 0 || switch_value
== NULL
;
8029 case '!' << 8 | '>':
8030 result
= comp1
< 0 || switch_value
== NULL
;
8032 case '>' << 8 | '<':
8033 result
= comp1
>= 0 && comp2
< 0;
8035 case '<' << 8 | '>':
8036 result
= comp1
< 0 || comp2
>= 0;
8040 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8045 return argv
[nargs
+ 2];
8048 /* %:include builtin spec function. This differs from %include in that it
8049 can be nested inside a spec, and thus be conditionalized. It takes
8050 one argument, the filename, and looks for it in the startfile path.
8051 The result is always NULL, i.e. an empty expansion. */
8054 include_spec_function (int argc
, const char **argv
)
8061 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8062 read_specs (file
? file
: argv
[0], FALSE
);
8067 /* %:print-asm-header spec function. Print a banner to say that the
8068 following output is from the assembler. */
8071 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8072 const char **argv ATTRIBUTE_UNUSED
)
8074 printf (_("Assembler options\n=================\n\n"));
8075 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));