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
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 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 This paragraph is here to try to keep Sun CC from dying.
24 The number of chars here seems crucial!!!! */
26 /* This program is the user interface to the C compiler and possibly to
27 other compilers. It is used because compilation is a complicated procedure
28 which involves running several programs and passing temporary files between
29 them, forwarding the users switches to those programs selectively,
30 and deleting the temporary files at the end.
32 CC recognizes how to compile each input file by suffixes in the file names.
33 Once it knows which kind of compilation to perform, the procedure for
34 compilation is specified by a string called a "spec". */
36 /* A Short Introduction to Adding a Command-Line Option.
38 Before adding a command-line option, consider if it is really
39 necessary. Each additional command-line option adds complexity and
40 is difficult to remove in subsequent versions.
42 In the following, consider adding the command-line argument
45 1. Each command-line option is specified in the specs file. The
46 notation is described below in the comment entitled "The Specs
49 2. In this file, add an entry to "option_map" equating the long
50 `--' argument version and any shorter, single letter version. Read
51 the comments in the declaration of "struct option_map" for an
52 explanation. Do not omit the first `-'.
54 3. Look in the "specs" file to determine which program or option
55 list should be given the argument, e.g., "cc1_options". Add the
56 appropriate syntax for the shorter option version to the
57 corresponding "const char *" entry in this file. Omit the first
58 `-' from the option. For example, use `-bar', rather than `--bar'.
60 4. If the argument takes an argument, e.g., `--baz argument1',
61 modify either DEFAULT_SWITCH_TAKES_ARG or
62 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
65 5. Document the option in this file's display_help(). If the
66 option is passed to a subprogram, modify its corresponding
67 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
70 6. Compile and test. Make sure that your new specs file is being
71 read. For example, use a debugger to investigate the value of
72 "specs_file" in main(). */
76 #include "coretypes.h"
77 #include "multilib.h" /* before tm.h */
80 #if ! defined( SIGCHLD ) && defined( SIGCLD )
81 # define SIGCHLD SIGCLD
91 /* By default there is no special suffix for target executables. */
92 /* FIXME: when autoconf is fixed, remove the host check - dj */
93 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
94 #define HAVE_TARGET_EXECUTABLE_SUFFIX
97 /* By default there is no special suffix for host executables. */
98 #ifdef HOST_EXECUTABLE_SUFFIX
99 #define HAVE_HOST_EXECUTABLE_SUFFIX
101 #define HOST_EXECUTABLE_SUFFIX ""
104 /* By default, the suffix for target object files is ".o". */
105 #ifdef TARGET_OBJECT_SUFFIX
106 #define HAVE_TARGET_OBJECT_SUFFIX
108 #define TARGET_OBJECT_SUFFIX ".o"
111 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
113 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
114 #ifndef LIBRARY_PATH_ENV
115 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
119 #define kill(p,s) raise(s)
122 /* If a stage of compilation returns an exit status >= 1,
123 compilation of that file ceases. */
125 #define MIN_FATAL_STATUS 1
127 /* Flag set by cppspec.c to 1. */
130 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
131 static bool at_file_supplied
;
133 /* Flag saying to pass the greatest exit code returned by a sub-process
134 to the calling program. */
135 static int pass_exit_codes
;
137 /* Definition of string containing the arguments given to configure. */
138 #include "configargs.h"
140 /* Flag saying to print the directories gcc will search through looking for
141 programs, libraries, etc. */
143 static int print_search_dirs
;
145 /* Flag saying to print the full filename of this file
146 as found through our usual search mechanism. */
148 static const char *print_file_name
= NULL
;
150 /* As print_file_name, but search for executable file. */
152 static const char *print_prog_name
= NULL
;
154 /* Flag saying to print the relative path we'd use to
155 find libgcc.a given the current compiler flags. */
157 static int print_multi_directory
;
159 /* Flag saying to print the relative path we'd use to
160 find OS libraries given the current compiler flags. */
162 static int print_multi_os_directory
;
164 /* Flag saying to print the list of subdirectories and
165 compiler flags used to select them in a standard form. */
167 static int print_multi_lib
;
169 /* Flag saying to print the command line options understood by gcc and its
172 static int print_help_list
;
174 /* Flag saying to print the sysroot suffix used for searching for
177 static int print_sysroot_headers_suffix
;
179 /* Flag indicating whether we should print the command and arguments */
181 static int verbose_flag
;
183 /* Flag indicating whether we should ONLY print the command and
184 arguments (like verbose_flag) without executing the command.
185 Displayed arguments are quoted so that the generated command
186 line is suitable for execution. This is intended for use in
187 shell scripts to capture the driver-generated command line. */
188 static int verbose_only_flag
;
190 /* Flag indicating how to print command line options of sub-processes. */
192 static int print_subprocess_help
;
194 /* Flag indicating whether we should report subprocess execution times
195 (if this is supported by the system - see pexecute.c). */
197 static int report_times
;
199 /* Nonzero means place this string before uses of /, so that include
200 and library files can be found in an alternate location. */
202 #ifdef TARGET_SYSTEM_ROOT
203 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
205 static const char *target_system_root
= 0;
208 /* Nonzero means pass the updated target_system_root to the compiler. */
210 static int target_system_root_changed
;
212 /* Nonzero means append this string to target_system_root. */
214 static const char *target_sysroot_suffix
= 0;
216 /* Nonzero means append this string to target_system_root for headers. */
218 static const char *target_sysroot_hdrs_suffix
= 0;
220 /* Nonzero means write "temp" files in source directory
221 and use the source file's name in them, and don't delete them. */
223 static int save_temps_flag
;
225 /* Nonzero means pass multiple source files to the compiler at one time. */
227 static int combine_flag
= 0;
229 /* Nonzero means use pipes to communicate between subprocesses.
230 Overridden by either of the above two flags. */
232 static int use_pipes
;
234 /* The compiler version. */
236 static const char *compiler_version
;
238 /* The target version specified with -V */
240 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
242 /* The target machine specified with -b. */
244 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
246 /* Nonzero if cross-compiling.
247 When -b is used, the value comes from the `specs' file. */
249 #ifdef CROSS_DIRECTORY_STRUCTURE
250 static const char *cross_compile
= "1";
252 static const char *cross_compile
= "0";
255 #ifdef MODIFY_TARGET_NAME
257 /* Information on how to alter the target name based on a command-line
258 switch. The only case we support now is simply appending or deleting a
259 string to or from the end of the first part of the configuration name. */
261 static const struct modify_target
263 const char *const sw
;
264 const enum add_del
{ADD
, DELETE
} add_del
;
265 const char *const str
;
267 modify_target
[] = MODIFY_TARGET_NAME
;
270 /* The number of errors that have occurred; the link phase will not be
271 run if this is nonzero. */
272 static int error_count
= 0;
274 /* Greatest exit code of sub-processes that has been encountered up to
276 static int greatest_status
= 1;
278 /* This is the obstack which we use to allocate many strings. */
280 static struct obstack obstack
;
282 /* This is the obstack to build an environment variable to pass to
283 collect2 that describes all of the relevant switches of what to
284 pass the compiler in building the list of pointers to constructors
287 static struct obstack collect_obstack
;
289 /* Forward declaration for prototypes. */
293 static void init_spec (void);
294 static void store_arg (const char *, int, int);
295 static char *load_specs (const char *);
296 static void read_specs (const char *, int);
297 static void set_spec (const char *, const char *);
298 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
299 static char *build_search_list (const struct path_prefix
*, const char *,
301 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
303 static int access_check (const char *, int);
304 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
305 static void add_prefix (struct path_prefix
*, const char *, const char *,
307 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
308 const char *, int, int, int);
309 static void translate_options (int *, const char *const **);
310 static char *skip_whitespace (char *);
311 static void delete_if_ordinary (const char *);
312 static void delete_temp_files (void);
313 static void delete_failure_queue (void);
314 static void clear_failure_queue (void);
315 static int check_live_switch (int, int);
316 static const char *handle_braces (const char *);
317 static inline bool input_suffix_matches (const char *, const char *);
318 static inline bool switch_matches (const char *, const char *, int);
319 static inline void mark_matching_switches (const char *, const char *, int);
320 static inline void process_marked_switches (void);
321 static const char *process_brace_body (const char *, const char *, const char *, int, int);
322 static const struct spec_function
*lookup_spec_function (const char *);
323 static const char *eval_spec_function (const char *, const char *);
324 static const char *handle_spec_function (const char *);
325 static char *save_string (const char *, int);
326 static void set_collect_gcc_options (void);
327 static int do_spec_1 (const char *, int, const char *);
328 static int do_spec_2 (const char *);
329 static void do_option_spec (const char *, const char *);
330 static void do_self_spec (const char *);
331 static const char *find_file (const char *);
332 static int is_directory (const char *, bool);
333 static const char *validate_switches (const char *);
334 static void validate_all_switches (void);
335 static inline void validate_switches_from_spec (const char *);
336 static void give_switch (int, int);
337 static int used_arg (const char *, int);
338 static int default_arg (const char *, int);
339 static void set_multilib_dir (void);
340 static void print_multilib_info (void);
341 static void perror_with_name (const char *);
342 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
343 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
344 static void display_help (void);
345 static void add_preprocessor_option (const char *, int);
346 static void add_assembler_option (const char *, int);
347 static void add_linker_option (const char *, int);
348 static void process_command (int, const char **);
349 static int execute (void);
350 static void alloc_args (void);
351 static void clear_args (void);
352 static void fatal_error (int);
353 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
354 static void init_gcc_specs (struct obstack
*, const char *, const char *,
357 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
358 static const char *convert_filename (const char *, int, int);
361 static const char *getenv_spec_function (int, const char **);
362 static const char *if_exists_spec_function (int, const char **);
363 static const char *if_exists_else_spec_function (int, const char **);
364 static const char *replace_outfile_spec_function (int, const char **);
365 static const char *version_compare_spec_function (int, const char **);
366 static const char *include_spec_function (int, const char **);
367 static const char *print_asm_header_spec_function (int, const char **);
369 /* The Specs Language
371 Specs are strings containing lines, each of which (if not blank)
372 is made up of a program name, and arguments separated by spaces.
373 The program name must be exact and start from root, since no path
374 is searched and it is unreliable to depend on the current working directory.
375 Redirection of input or output is not supported; the subprograms must
376 accept filenames saying what files to read and write.
378 In addition, the specs can contain %-sequences to substitute variable text
379 or for conditional text. Here is a table of all defined %-sequences.
380 Note that spaces are not generated automatically around the results of
381 expanding these sequences; therefore, you can concatenate them together
382 or with constant text in a single argument.
384 %% substitute one % into the program name or argument.
385 %i substitute the name of the input file being processed.
386 %b substitute the basename of the input file being processed.
387 This is the substring up to (and not including) the last period
388 and not including the directory.
389 %B same as %b, but include the file suffix (text after the last period).
391 substitute a file name that has suffix SUFFIX and is chosen
392 once per compilation, and mark the argument a la %d. To reduce
393 exposure to denial-of-service attacks, the file name is now
394 chosen in a way that is hard to predict even when previously
395 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
396 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
397 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
398 had been pre-processed. Previously, %g was simply substituted
399 with a file name chosen once per compilation, without regard
400 to any appended suffix (which was therefore treated just like
401 ordinary text), making such attacks more likely to succeed.
403 like %g, but if -pipe is in effect, expands simply to "-".
405 like %g, but if -pipe is in effect, expands to nothing. (We have both
406 %| and %m to accommodate differences between system assemblers; see
407 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
409 like %g, but generates a new temporary file name even if %uSUFFIX
412 substitutes the last file name generated with %uSUFFIX, generating a
413 new one if there is no such last file name. In the absence of any
414 %uSUFFIX, this is just like %gSUFFIX, except they don't share
415 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
416 would involve the generation of two distinct file names, one
417 for each `%g.s' and another for each `%U.s'. Previously, %U was
418 simply substituted with a file name chosen for the previous %u,
419 without regard to any appended suffix.
421 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
422 writable, and if save-temps is off; otherwise, substitute the name
423 of a temporary file, just like %u. This temporary file is not
424 meant for communication between processes, but rather as a junk
427 substitutes .SUFFIX for the suffixes of a matched switch's args when
428 it is subsequently output with %*. SUFFIX is terminated by the next
430 %d marks the argument containing or following the %d as a
431 temporary file name, so that that file will be deleted if CC exits
432 successfully. Unlike %g, this contributes no text to the argument.
433 %w marks the argument containing or following the %w as the
434 "output file" of this compilation. This puts the argument
435 into the sequence of arguments that %o will substitute later.
436 %V indicates that this compilation produces no "output file".
438 like %{...} but mark last argument supplied within
439 as a file to be deleted on failure.
440 %o substitutes the names of all the output files, with spaces
441 automatically placed around them. You should write spaces
442 around the %o as well or the results are undefined.
443 %o is for use in the specs for running the linker.
444 Input files whose names have no recognized suffix are not compiled
445 at all, but they are included among the output files, so they will
447 %O substitutes the suffix for object files. Note that this is
448 handled specially when it immediately follows %g, %u, or %U
449 (with or without a suffix argument) because of the need for
450 those to form complete file names. The handling is such that
451 %O is treated exactly as if it had already been substituted,
452 except that %g, %u, and %U do not currently support additional
453 SUFFIX characters following %O as they would following, for
455 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
456 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
457 and -B options) and -imultilib as necessary.
458 %s current argument is the name of a library or startup file of some sort.
459 Search for that file in a standard list of directories
460 and substitute the full name found.
461 %eSTR Print STR as an error message. STR is terminated by a newline.
462 Use this when inconsistent options are detected.
463 %nSTR Print STR as a notice. STR is terminated by a newline.
464 %x{OPTION} Accumulate an option for %X.
465 %X Output the accumulated linker options specified by compilations.
466 %Y Output the accumulated assembler options specified by compilations.
467 %Z Output the accumulated preprocessor options specified by compilations.
468 %a process ASM_SPEC as a spec.
469 This allows config.h to specify part of the spec for running as.
470 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
471 used here. This can be used to run a post-processor after the
472 assembler has done its job.
473 %D Dump out a -L option for each directory in startfile_prefixes.
474 If multilib_dir is set, extra entries are generated with it affixed.
475 %l process LINK_SPEC as a spec.
476 %L process LIB_SPEC as a spec.
477 %G process LIBGCC_SPEC as a spec.
478 %R Output the concatenation of target_system_root and
479 target_sysroot_suffix.
480 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
481 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
482 %C process CPP_SPEC as a spec.
483 %1 process CC1_SPEC as a spec.
484 %2 process CC1PLUS_SPEC as a spec.
485 %* substitute the variable part of a matched option. (See below.)
486 Note that each comma in the substituted string is replaced by
488 %<S remove all occurrences of -S from the command line.
489 Note - this command is position dependent. % commands in the
490 spec string before this one will see -S, % commands in the
491 spec string after this one will not.
492 %<S* remove all occurrences of all switches beginning with -S from the
495 Call the named function FUNCTION, passing it ARGS. ARGS is
496 first processed as a nested spec string, then split into an
497 argument vector in the usual fashion. The function returns
498 a string which is processed as if it had appeared literally
499 as part of the current spec.
500 %{S} substitutes the -S switch, if that switch was given to CC.
501 If that switch was not specified, this substitutes nothing.
502 Here S is a metasyntactic variable.
503 %{S*} substitutes all the switches specified to CC whose names start
504 with -S. This is used for -o, -I, etc; switches that take
505 arguments. CC considers `-o foo' as being one switch whose
506 name starts with `o'. %{o*} would substitute this text,
507 including the space; thus, two arguments would be generated.
508 %{S*&T*} likewise, but preserve order of S and T options (the order
509 of S and T in the spec is not significant). Can be any number
510 of ampersand-separated variables; for each the wild card is
511 optional. Useful for CPP as %{D*&U*&A*}.
513 %{S:X} substitutes X, if the -S switch was given to CC.
514 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
515 %{S*:X} substitutes X if one or more switches whose names start
516 with -S was given to CC. Normally X is substituted only
517 once, no matter how many such switches appeared. However,
518 if %* appears somewhere in X, then X will be substituted
519 once for each matching switch, with the %* replaced by the
520 part of that switch that matched the '*'.
521 %{.S:X} substitutes X, if processing a file with suffix S.
522 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
523 %{,S:X} substitutes X, if processing a file which will use spec S.
524 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
526 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
527 combined with '!', '.', ',', and '*' as above binding stronger
529 If %* appears in X, all of the alternatives must be starred, and
530 only the first matching alternative is substituted.
531 %{S:X; if S was given to CC, substitutes X;
532 T:Y; else if T was given to CC, substitutes Y;
533 :D} else substitutes D. There can be as many clauses as you need.
534 This may be combined with '.', '!', ',', '|', and '*' as above.
536 %(Spec) processes a specification defined in a specs file as *Spec:
537 %[Spec] as above, but put __ around -D arguments
539 The conditional text X in a %{S:X} or similar construct may contain
540 other nested % constructs or spaces, or even newlines. They are
541 processed as usual, as described above. Trailing white space in X is
542 ignored. White space may also appear anywhere on the left side of the
543 colon in these constructs, except between . or * and the corresponding
546 The -O, -f, -m, and -W switches are handled specifically in these
547 constructs. If another value of -O or the negated form of a -f, -m, or
548 -W switch is found later in the command line, the earlier switch
549 value is ignored, except with {S*} where S is just one letter; this
550 passes all matching options.
552 The character | at the beginning of the predicate text is used to indicate
553 that a command should be piped to the following command, but only if -pipe
556 Note that it is built into CC which switches take arguments and which
557 do not. You might think it would be useful to generalize this to
558 allow each compiler's spec to say which switches take arguments. But
559 this cannot be done in a consistent fashion. CC cannot even decide
560 which input files have been specified without knowing which switches
561 take arguments, and it must know which input files to compile in order
562 to tell which compilers to run.
564 CC also knows implicitly that arguments starting in `-l' are to be
565 treated as compiler output files, and passed to the linker in their
566 proper position among the other output files. */
568 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
570 /* config.h can define ASM_SPEC to provide extra args to the assembler
571 or extra switch-translations. */
576 /* config.h can define ASM_FINAL_SPEC to run a post processor after
577 the assembler has run. */
578 #ifndef ASM_FINAL_SPEC
579 #define ASM_FINAL_SPEC ""
582 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
583 or extra switch-translations. */
588 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
589 or extra switch-translations. */
594 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
595 or extra switch-translations. */
597 #define CC1PLUS_SPEC ""
600 /* config.h can define LINK_SPEC to provide extra args to the linker
601 or extra switch-translations. */
606 /* config.h can define LIB_SPEC to override the default libraries. */
608 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
613 /* XXX: valid only for GNU ld */
614 /* XXX: should exactly match hooks provided by libmudflap.a */
615 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
616 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
617 --wrap=mmap --wrap=munmap --wrap=alloca\
618 } %{fmudflapth: --wrap=pthread_create\
619 }} %{fmudflap|fmudflapth: --wrap=main}"
622 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
625 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
628 #if defined(REAL_LIBGCC_SPEC)
629 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
630 #elif defined(LINK_LIBGCC_SPECIAL_1)
631 /* Have gcc do the search for libgcc.a. */
632 #define LIBGCC_SPEC "libgcc.a%s"
634 #define LIBGCC_SPEC "-lgcc"
638 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
639 #ifndef STARTFILE_SPEC
640 #define STARTFILE_SPEC \
641 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
644 /* config.h can define SWITCHES_NEED_SPACES to control which options
645 require spaces between the option and the argument. */
646 #ifndef SWITCHES_NEED_SPACES
647 #define SWITCHES_NEED_SPACES ""
650 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
652 #define ENDFILE_SPEC ""
656 #define LINKER_NAME "collect2"
659 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
661 #ifndef ASM_DEBUG_SPEC
662 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
663 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
664 # define ASM_DEBUG_SPEC \
665 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
666 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
667 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
669 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
670 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
672 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
673 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
677 #ifndef ASM_DEBUG_SPEC
678 # define ASM_DEBUG_SPEC ""
681 /* Here is the spec for running the linker, after compiling all files. */
683 /* This is overridable by the target in case they need to specify the
684 -lgcc and -lc order specially, yet not require them to override all
685 of LINK_COMMAND_SPEC. */
686 #ifndef LINK_GCC_C_SEQUENCE_SPEC
687 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
690 #ifndef LINK_SSP_SPEC
691 #ifdef TARGET_LIBC_PROVIDES_SSP
692 #define LINK_SSP_SPEC "%{fstack-protector:}"
694 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
698 #ifndef LINK_PIE_SPEC
700 #define LINK_PIE_SPEC "%{pie:-pie} "
702 #define LINK_PIE_SPEC "%{pie:} "
706 /* -u* was put back because both BSD and SysV seem to support it. */
707 /* %{static:} simply prevents an error message if the target machine
708 doesn't handle -static. */
709 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
710 scripts which exist in user specified directories, or in standard
712 #ifndef LINK_COMMAND_SPEC
713 #define LINK_COMMAND_SPEC "\
714 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
715 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
716 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
717 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
718 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
719 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
720 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
721 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
724 #ifndef LINK_LIBGCC_SPEC
725 /* Generate -L options for startfile prefix list. */
726 # define LINK_LIBGCC_SPEC "%D"
729 #ifndef STARTFILE_PREFIX_SPEC
730 # define STARTFILE_PREFIX_SPEC ""
734 # define SYSROOT_SPEC "--sysroot=%R"
737 #ifndef SYSROOT_SUFFIX_SPEC
738 # define SYSROOT_SUFFIX_SPEC ""
741 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
742 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
745 static const char *asm_debug
;
746 static const char *cpp_spec
= CPP_SPEC
;
747 static const char *cc1_spec
= CC1_SPEC
;
748 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
749 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
750 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
751 static const char *asm_spec
= ASM_SPEC
;
752 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
753 static const char *link_spec
= LINK_SPEC
;
754 static const char *lib_spec
= LIB_SPEC
;
755 static const char *mfwrap_spec
= MFWRAP_SPEC
;
756 static const char *mflib_spec
= MFLIB_SPEC
;
757 static const char *link_gomp_spec
= "";
758 static const char *libgcc_spec
= LIBGCC_SPEC
;
759 static const char *endfile_spec
= ENDFILE_SPEC
;
760 static const char *startfile_spec
= STARTFILE_SPEC
;
761 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
762 static const char *linker_name_spec
= LINKER_NAME
;
763 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
764 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
765 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
766 static const char *sysroot_spec
= SYSROOT_SPEC
;
767 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
768 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
770 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
771 There should be no need to override these in target dependent files,
772 but we need to copy them to the specs file so that newer versions
773 of the GCC driver can correctly drive older tool chains with the
774 appropriate -B options. */
776 /* When cpplib handles traditional preprocessing, get rid of this, and
777 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
778 that we default the front end language better. */
779 static const char *trad_capable_cpp
=
780 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
782 /* We don't wrap .d files in %W{} since a missing .d file, and
783 therefore no dependency entry, confuses make into thinking a .o
784 file that happens to exist is up-to-date. */
785 static const char *cpp_unique_options
=
786 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
787 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
788 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
789 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
790 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
791 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
792 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
793 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
794 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
795 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
798 /* This contains cpp options which are common with cc1_options and are passed
799 only when preprocessing only to avoid duplication. We pass the cc1 spec
800 options to the preprocessor so that it the cc1 spec may manipulate
801 options used to set target flags. Those special target flags settings may
802 in turn cause preprocessor symbols to be defined specially. */
803 static const char *cpp_options
=
804 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
805 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
806 %{undef} %{save-temps:-fpch-preprocess}";
808 /* This contains cpp options which are not passed when the preprocessor
809 output will be used by another program. */
810 static const char *cpp_debug_options
= "%{d*}";
812 /* NB: This is shared amongst all front-ends. */
813 static const char *cc1_options
=
814 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
815 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
816 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
817 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
818 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
819 %{Qn:-fno-ident} %{--help:--help}\
820 %{--target-help:--target-help}\
821 %{--help=*:--help=%(VALUE)}\
822 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
823 %{fsyntax-only:-o %j} %{-param*}\
824 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
825 %{coverage:-fprofile-arcs -ftest-coverage}";
827 static const char *asm_options
=
828 "%{ftarget-help:%:print-asm-header()} \
829 %a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
831 static const char *invoke_as
=
832 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
833 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
835 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
838 /* Some compilers have limits on line lengths, and the multilib_select
839 and/or multilib_matches strings can be very long, so we build them at
841 static struct obstack multilib_obstack
;
842 static const char *multilib_select
;
843 static const char *multilib_matches
;
844 static const char *multilib_defaults
;
845 static const char *multilib_exclusions
;
847 /* Check whether a particular argument is a default argument. */
849 #ifndef MULTILIB_DEFAULTS
850 #define MULTILIB_DEFAULTS { "" }
853 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
855 #ifndef DRIVER_SELF_SPECS
856 #define DRIVER_SELF_SPECS ""
859 /* Adding -fopenmp should imply pthreads. This is particularly important
860 for targets that use different start files and suchlike. */
861 #ifndef GOMP_SELF_SPECS
862 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
865 static const char *const driver_self_specs
[] = {
866 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
869 #ifndef OPTION_DEFAULT_SPECS
870 #define OPTION_DEFAULT_SPECS { "", "" }
879 static const struct default_spec
880 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
884 struct user_specs
*next
;
885 const char *filename
;
888 static struct user_specs
*user_specs_head
, *user_specs_tail
;
890 #ifndef SWITCH_TAKES_ARG
891 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
894 #ifndef WORD_SWITCH_TAKES_ARG
895 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
898 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
899 /* This defines which switches stop a full compilation. */
900 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
901 ((CHAR) == 'c' || (CHAR) == 'S')
903 #ifndef SWITCH_CURTAILS_COMPILATION
904 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
905 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
909 /* Record the mapping from file suffixes for compilation specs. */
913 const char *suffix
; /* Use this compiler for input files
914 whose names end in this suffix. */
916 const char *spec
; /* To use this compiler, run this spec. */
918 const char *cpp_spec
; /* If non-NULL, substitute this spec
919 for `%C', rather than the usual
921 const int combinable
; /* If nonzero, compiler can deal with
922 multiple source files at once (IMA). */
923 const int needs_preprocessing
; /* If nonzero, source files need to
924 be run through a preprocessor. */
927 /* Pointer to a vector of `struct compiler' that gives the spec for
928 compiling a file, based on its suffix.
929 A file that does not end in any of these suffixes will be passed
930 unchanged to the loader and nothing else will be done to it.
932 An entry containing two 0s is used to terminate the vector.
934 If multiple entries match a file, the last matching one is used. */
936 static struct compiler
*compilers
;
938 /* Number of entries in `compilers', not counting the null terminator. */
940 static int n_compilers
;
942 /* The default list of file name suffixes and their compilation specs. */
944 static const struct compiler default_compilers
[] =
946 /* Add lists of suffixes of known languages here. If those languages
947 were not present when we built the driver, we will hit these copies
948 and be given a more meaningful error than "file not used since
949 linking is not done". */
950 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
951 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
952 {".mii", "#Objective-C++", 0, 0, 0},
953 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
954 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
955 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
956 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
957 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
958 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
959 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
960 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
961 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
962 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
963 {".r", "#Ratfor", 0, 0, 0},
964 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
965 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
966 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
967 /* Next come the entries for C. */
968 {".c", "@c", 0, 1, 1},
970 /* cc1 has an integrated ISO C preprocessor. We should invoke the
971 external preprocessor if -save-temps is given. */
972 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
974 %{traditional|ftraditional:\
975 %eGNU C no longer supports -traditional without -E}\
977 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
978 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
979 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
981 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
982 cc1 %(cpp_unique_options) %(cc1_options)}}}\
983 %{!fsyntax-only:%(invoke_as)}} \
985 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
986 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
987 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
988 cc1 %(cpp_unique_options) %(cc1_options)}}\
989 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
991 "%{!E:%e-E or -x required when input is from standard input}\
992 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
993 {".h", "@c-header", 0, 0, 0},
995 /* cc1 has an integrated ISO C preprocessor. We should invoke the
996 external preprocessor if -save-temps is given. */
997 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
999 %{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 -o %g.s %{!o*:--output-pch=%i.gch}\
1004 %W{o*:--output-pch=%*}%V}\
1005 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1006 cc1 %(cpp_unique_options) %(cc1_options)\
1007 -o %g.s %{!o*:--output-pch=%i.gch}\
1008 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1009 {".i", "@cpp-output", 0, 1, 0},
1011 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1012 {".s", "@assembler", 0, 1, 0},
1014 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1015 {".S", "@assembler-with-cpp", 0, 1, 0},
1016 {"@assembler-with-cpp",
1017 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1018 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1019 %{E|M|MM:%(cpp_debug_options)}\
1020 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1021 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1023 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1024 %{E|M|MM:%(cpp_debug_options)}\
1025 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1026 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1031 /* Mark end of table. */
1035 /* Number of elements in default_compilers, not counting the terminator. */
1037 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1039 /* A vector of options to give to the linker.
1040 These options are accumulated by %x,
1041 and substituted into the linker command with %X. */
1042 static int n_linker_options
;
1043 static char **linker_options
;
1045 /* A vector of options to give to the assembler.
1046 These options are accumulated by -Wa,
1047 and substituted into the assembler command with %Y. */
1048 static int n_assembler_options
;
1049 static char **assembler_options
;
1051 /* A vector of options to give to the preprocessor.
1052 These options are accumulated by -Wp,
1053 and substituted into the preprocessor command with %Z. */
1054 static int n_preprocessor_options
;
1055 static char **preprocessor_options
;
1057 /* Define how to map long options into short ones. */
1059 /* This structure describes one mapping. */
1062 /* The long option's name. */
1063 const char *const name
;
1064 /* The equivalent short option. */
1065 const char *const equivalent
;
1066 /* Argument info. A string of flag chars; NULL equals no options.
1067 a => argument required.
1068 o => argument optional.
1069 j => join argument to equivalent, making one word.
1070 * => require other text after NAME as an argument. */
1071 const char *const arg_info
;
1074 /* This is the table of mappings. Mappings are tried sequentially
1075 for each option encountered; the first one that matches, wins. */
1077 static const struct option_map option_map
[] =
1079 {"--all-warnings", "-Wall", 0},
1080 {"--ansi", "-ansi", 0},
1081 {"--assemble", "-S", 0},
1082 {"--assert", "-A", "a"},
1083 {"--classpath", "-fclasspath=", "aj"},
1084 {"--bootclasspath", "-fbootclasspath=", "aj"},
1085 {"--CLASSPATH", "-fclasspath=", "aj"},
1086 {"--combine", "-combine", 0},
1087 {"--comments", "-C", 0},
1088 {"--comments-in-macros", "-CC", 0},
1089 {"--compile", "-c", 0},
1090 {"--debug", "-g", "oj"},
1091 {"--define-macro", "-D", "aj"},
1092 {"--dependencies", "-M", 0},
1093 {"--dump", "-d", "a"},
1094 {"--dumpbase", "-dumpbase", "a"},
1095 {"--encoding", "-fencoding=", "aj"},
1096 {"--entry", "-e", 0},
1097 {"--extra-warnings", "-W", 0},
1098 {"--extdirs", "-fextdirs=", "aj"},
1099 {"--for-assembler", "-Wa", "a"},
1100 {"--for-linker", "-Xlinker", "a"},
1101 {"--force-link", "-u", "a"},
1102 {"--coverage", "-coverage", 0},
1103 {"--imacros", "-imacros", "a"},
1104 {"--include", "-include", "a"},
1105 {"--include-barrier", "-I-", 0},
1106 {"--include-directory", "-I", "aj"},
1107 {"--include-directory-after", "-idirafter", "a"},
1108 {"--include-prefix", "-iprefix", "a"},
1109 {"--include-with-prefix", "-iwithprefix", "a"},
1110 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1111 {"--include-with-prefix-after", "-iwithprefix", "a"},
1112 {"--language", "-x", "a"},
1113 {"--library-directory", "-L", "a"},
1114 {"--machine", "-m", "aj"},
1115 {"--machine-", "-m", "*j"},
1116 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1117 {"--no-line-commands", "-P", 0},
1118 {"--no-precompiled-includes", "-noprecomp", 0},
1119 {"--no-standard-includes", "-nostdinc", 0},
1120 {"--no-standard-libraries", "-nostdlib", 0},
1121 {"--no-warnings", "-w", 0},
1122 {"--optimize", "-O", "oj"},
1123 {"--output", "-o", "a"},
1124 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1125 {"--param", "--param", "a"},
1126 {"--pass-exit-codes", "-pass-exit-codes", 0},
1127 {"--pedantic", "-pedantic", 0},
1128 {"--pedantic-errors", "-pedantic-errors", 0},
1129 {"--pie", "-pie", 0},
1130 {"--pipe", "-pipe", 0},
1131 {"--prefix", "-B", "a"},
1132 {"--preprocess", "-E", 0},
1133 {"--print-search-dirs", "-print-search-dirs", 0},
1134 {"--print-file-name", "-print-file-name=", "aj"},
1135 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1136 {"--print-missing-file-dependencies", "-MG", 0},
1137 {"--print-multi-lib", "-print-multi-lib", 0},
1138 {"--print-multi-directory", "-print-multi-directory", 0},
1139 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1140 {"--print-prog-name", "-print-prog-name=", "aj"},
1141 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1142 {"--profile", "-p", 0},
1143 {"--profile-blocks", "-a", 0},
1144 {"--quiet", "-q", 0},
1145 {"--resource", "-fcompile-resource=", "aj"},
1146 {"--save-temps", "-save-temps", 0},
1147 {"--shared", "-shared", 0},
1148 {"--silent", "-q", 0},
1149 {"--specs", "-specs=", "aj"},
1150 {"--static", "-static", 0},
1151 {"--std", "-std=", "aj"},
1152 {"--symbolic", "-symbolic", 0},
1153 {"--sysroot", "--sysroot=", "aj"},
1154 {"--time", "-time", 0},
1155 {"--trace-includes", "-H", 0},
1156 {"--traditional", "-traditional", 0},
1157 {"--traditional-cpp", "-traditional-cpp", 0},
1158 {"--trigraphs", "-trigraphs", 0},
1159 {"--undefine-macro", "-U", "aj"},
1160 {"--user-dependencies", "-MM", 0},
1161 {"--verbose", "-v", 0},
1162 {"--warn-", "-W", "*j"},
1163 {"--write-dependencies", "-MD", 0},
1164 {"--write-user-dependencies", "-MMD", 0},
1169 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1170 static const struct {
1171 const char *const option_found
;
1172 const char *const replacements
;
1173 } target_option_translations
[] =
1175 TARGET_OPTION_TRANSLATE_TABLE
,
1180 /* Translate the options described by *ARGCP and *ARGVP.
1181 Make a new vector and store it back in *ARGVP,
1182 and store its length in *ARGVC. */
1185 translate_options (int *argcp
, const char *const **argvp
)
1189 const char *const *argv
= *argvp
;
1190 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1191 const char **newv
= xmalloc (newvsize
);
1195 newv
[newindex
++] = argv
[i
++];
1199 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1203 target_option_translations
[tott_idx
].option_found
;
1206 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1213 for (sp
= target_option_translations
[tott_idx
].replacements
;
1220 newvsize
+= spaces
* sizeof (const char *);
1221 newv
= xrealloc (newv
, newvsize
);
1223 sp
= target_option_translations
[tott_idx
].replacements
;
1232 newv
[newindex
++] = np
;
1233 while (*np
!= ' ' && *np
)
1244 if (target_option_translations
[tott_idx
].option_found
)
1248 /* Translate -- options. */
1249 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1252 /* Find a mapping that applies to this option. */
1253 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1255 size_t optlen
= strlen (option_map
[j
].name
);
1256 size_t arglen
= strlen (argv
[i
]);
1257 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1258 const char *arginfo
= option_map
[j
].arg_info
;
1263 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1265 const char *arg
= 0;
1267 if (arglen
< optlen
)
1270 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1271 if (strlen (option_map
[k
].name
) >= arglen
1272 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1274 error ("ambiguous abbreviation %s", argv
[i
]);
1278 if (k
!= ARRAY_SIZE (option_map
))
1282 if (arglen
> optlen
)
1284 /* If the option has an argument, accept that. */
1285 if (argv
[i
][optlen
] == '=')
1286 arg
= argv
[i
] + optlen
+ 1;
1288 /* If this mapping requires extra text at end of name,
1289 accept that as "argument". */
1290 else if (strchr (arginfo
, '*') != 0)
1291 arg
= argv
[i
] + optlen
;
1293 /* Otherwise, extra text at end means mismatch.
1294 Try other mappings. */
1299 else if (strchr (arginfo
, '*') != 0)
1301 error ("incomplete '%s' option", option_map
[j
].name
);
1305 /* Handle arguments. */
1306 if (strchr (arginfo
, 'a') != 0)
1312 error ("missing argument to '%s' option",
1313 option_map
[j
].name
);
1320 else if (strchr (arginfo
, '*') != 0)
1322 else if (strchr (arginfo
, 'o') == 0)
1325 error ("extraneous argument to '%s' option",
1326 option_map
[j
].name
);
1330 /* Store the translation as one argv elt or as two. */
1331 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1332 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1336 newv
[newindex
++] = option_map
[j
].equivalent
;
1337 newv
[newindex
++] = arg
;
1340 newv
[newindex
++] = option_map
[j
].equivalent
;
1348 /* Handle old-fashioned options--just copy them through,
1349 with their arguments. */
1350 else if (argv
[i
][0] == '-')
1352 const char *p
= argv
[i
] + 1;
1356 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1357 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1358 else if (WORD_SWITCH_TAKES_ARG (p
))
1359 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1360 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1363 else if (! strcmp (p
, "Xlinker"))
1365 else if (! strcmp (p
, "Xpreprocessor"))
1367 else if (! strcmp (p
, "Xassembler"))
1370 /* Watch out for an option at the end of the command line that
1371 is missing arguments, and avoid skipping past the end of the
1373 if (nskip
+ i
> argc
)
1378 newv
[newindex
++] = argv
[i
++];
1383 /* Ordinary operands, or +e options. */
1384 newv
[newindex
++] = argv
[i
++];
1394 skip_whitespace (char *p
)
1398 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1399 be considered whitespace. */
1400 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1402 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1416 /* Structures to keep track of prefixes to try when looking for files. */
1420 const char *prefix
; /* String to prepend to the path. */
1421 struct prefix_list
*next
; /* Next in linked list. */
1422 int require_machine_suffix
; /* Don't use without machine_suffix. */
1423 /* 2 means try both machine_suffix and just_machine_suffix. */
1424 int priority
; /* Sort key - priority within list. */
1425 int os_multilib
; /* 1 if OS multilib scheme should be used,
1426 0 for GCC multilib scheme. */
1431 struct prefix_list
*plist
; /* List of prefixes to try */
1432 int max_len
; /* Max length of a prefix in PLIST */
1433 const char *name
; /* Name of this list (used in config stuff) */
1436 /* List of prefixes to try when looking for executables. */
1438 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1440 /* List of prefixes to try when looking for startup (crt0) files. */
1442 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1444 /* List of prefixes to try when looking for include files. */
1446 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1448 /* Suffix to attach to directories searched for commands.
1449 This looks like `MACHINE/VERSION/'. */
1451 static const char *machine_suffix
= 0;
1453 /* Suffix to attach to directories searched for commands.
1454 This is just `MACHINE/'. */
1456 static const char *just_machine_suffix
= 0;
1458 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1460 static const char *gcc_exec_prefix
;
1462 /* Adjusted value of standard_libexec_prefix. */
1464 static const char *gcc_libexec_prefix
;
1466 /* Default prefixes to attach to command names. */
1468 #ifndef STANDARD_STARTFILE_PREFIX_1
1469 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1471 #ifndef STANDARD_STARTFILE_PREFIX_2
1472 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1475 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1476 #undef MD_EXEC_PREFIX
1477 #undef MD_STARTFILE_PREFIX
1478 #undef MD_STARTFILE_PREFIX_1
1481 /* If no prefixes defined, use the null string, which will disable them. */
1482 #ifndef MD_EXEC_PREFIX
1483 #define MD_EXEC_PREFIX ""
1485 #ifndef MD_STARTFILE_PREFIX
1486 #define MD_STARTFILE_PREFIX ""
1488 #ifndef MD_STARTFILE_PREFIX_1
1489 #define MD_STARTFILE_PREFIX_1 ""
1492 /* These directories are locations set at configure-time based on the
1493 --prefix option provided to configure. Their initializers are
1494 defined in Makefile.in. These paths are not *directly* used when
1495 gcc_exec_prefix is set because, in that case, we know where the
1496 compiler has been installed, and use paths relative to that
1497 location instead. */
1498 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1499 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1500 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1501 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1503 /* For native compilers, these are well-known paths containing
1504 components that may be provided by the system. For cross
1505 compilers, these paths are not used. */
1506 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1507 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1508 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1509 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1510 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1511 static const char *const standard_startfile_prefix_1
1512 = STANDARD_STARTFILE_PREFIX_1
;
1513 static const char *const standard_startfile_prefix_2
1514 = STANDARD_STARTFILE_PREFIX_2
;
1516 /* A relative path to be used in finding the location of tools
1517 relative to the driver. */
1518 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1520 /* Subdirectory to use for locating libraries. Set by
1521 set_multilib_dir based on the compilation options. */
1523 static const char *multilib_dir
;
1525 /* Subdirectory to use for locating libraries in OS conventions. Set by
1526 set_multilib_dir based on the compilation options. */
1528 static const char *multilib_os_dir
;
1530 /* Structure to keep track of the specs that have been defined so far.
1531 These are accessed using %(specname) or %[specname] in a compiler
1536 /* The following 2 fields must be first */
1537 /* to allow EXTRA_SPECS to be initialized */
1538 const char *name
; /* name of the spec. */
1539 const char *ptr
; /* available ptr if no static pointer */
1541 /* The following fields are not initialized */
1542 /* by EXTRA_SPECS */
1543 const char **ptr_spec
; /* pointer to the spec itself. */
1544 struct spec_list
*next
; /* Next spec in linked list. */
1545 int name_len
; /* length of the name */
1546 int alloc_p
; /* whether string was allocated */
1549 #define INIT_STATIC_SPEC(NAME,PTR) \
1550 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1552 /* List of statically defined specs. */
1553 static struct spec_list static_specs
[] =
1555 INIT_STATIC_SPEC ("asm", &asm_spec
),
1556 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1557 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1558 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1559 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1560 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1561 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1562 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1563 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1564 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1565 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1566 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1567 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1568 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1569 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1570 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1571 INIT_STATIC_SPEC ("link", &link_spec
),
1572 INIT_STATIC_SPEC ("lib", &lib_spec
),
1573 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1574 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1575 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1576 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1577 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1578 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1579 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1580 INIT_STATIC_SPEC ("version", &compiler_version
),
1581 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1582 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1583 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1584 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1585 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1586 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1587 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1588 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1589 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1590 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1591 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1592 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1593 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1594 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1595 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1598 #ifdef EXTRA_SPECS /* additional specs needed */
1599 /* Structure to keep track of just the first two args of a spec_list.
1600 That is all that the EXTRA_SPECS macro gives us. */
1603 const char *const name
;
1604 const char *const ptr
;
1607 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1608 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1611 /* List of dynamically allocates specs that have been defined so far. */
1613 static struct spec_list
*specs
= (struct spec_list
*) 0;
1615 /* List of static spec functions. */
1617 static const struct spec_function static_spec_functions
[] =
1619 { "getenv", getenv_spec_function
},
1620 { "if-exists", if_exists_spec_function
},
1621 { "if-exists-else", if_exists_else_spec_function
},
1622 { "replace-outfile", replace_outfile_spec_function
},
1623 { "version-compare", version_compare_spec_function
},
1624 { "include", include_spec_function
},
1625 { "print-asm-header", print_asm_header_spec_function
},
1626 #ifdef EXTRA_SPEC_FUNCTIONS
1627 EXTRA_SPEC_FUNCTIONS
1632 static int processing_spec_function
;
1634 /* Add appropriate libgcc specs to OBSTACK, taking into account
1635 various permutations of -shared-libgcc, -shared, and such. */
1637 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1639 #ifndef USE_LD_AS_NEEDED
1640 #define USE_LD_AS_NEEDED 0
1644 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1645 const char *static_name
, const char *eh_name
)
1649 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1650 "%{!static:%{!static-libgcc:"
1651 #if USE_LD_AS_NEEDED
1652 "%{!shared-libgcc:",
1653 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1656 shared_name
, "%{!shared: ", static_name
, "}"
1660 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1661 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1665 "%{shared-libgcc:", shared_name
, "}"
1666 "%{!shared-libgcc:", static_name
, "}"
1669 "%{shared:", shared_name
, "}"
1674 obstack_grow (obstack
, buf
, strlen (buf
));
1677 #endif /* ENABLE_SHARED_LIBGCC */
1679 /* Initialize the specs lookup routines. */
1684 struct spec_list
*next
= (struct spec_list
*) 0;
1685 struct spec_list
*sl
= (struct spec_list
*) 0;
1689 return; /* Already initialized. */
1692 notice ("Using built-in specs.\n");
1695 extra_specs
= xcalloc (sizeof (struct spec_list
),
1696 ARRAY_SIZE (extra_specs_1
));
1698 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1700 sl
= &extra_specs
[i
];
1701 sl
->name
= extra_specs_1
[i
].name
;
1702 sl
->ptr
= extra_specs_1
[i
].ptr
;
1704 sl
->name_len
= strlen (sl
->name
);
1705 sl
->ptr_spec
= &sl
->ptr
;
1710 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1711 on ?: in file-scope variable initializations. */
1712 asm_debug
= ASM_DEBUG_SPEC
;
1714 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1716 sl
= &static_specs
[i
];
1721 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1722 /* ??? If neither -shared-libgcc nor --static-libgcc was
1723 seen, then we should be making an educated guess. Some proposed
1724 heuristics for ELF include:
1726 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1727 program will be doing dynamic loading, which will likely
1728 need the shared libgcc.
1730 (2) If "-ldl", then it's also a fair bet that we're doing
1733 (3) For each ET_DYN we're linking against (either through -lfoo
1734 or /some/path/foo.so), check to see whether it or one of
1735 its dependencies depends on a shared libgcc.
1739 If the runtime is fixed to look for program headers instead
1740 of calling __register_frame_info at all, for each object,
1741 use the shared libgcc if any EH symbol referenced.
1743 If crtstuff is fixed to not invoke __register_frame_info
1744 automatically, for each object, use the shared libgcc if
1745 any non-empty unwind section found.
1747 Doing any of this probably requires invoking an external program to
1748 do the actual object file scanning. */
1750 const char *p
= libgcc_spec
;
1753 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1754 when given the proper command line arguments. */
1757 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1759 init_gcc_specs (&obstack
,
1761 #ifdef USE_LIBUNWIND_EXCEPTIONS
1767 #ifdef USE_LIBUNWIND_EXCEPTIONS
1768 # ifdef HAVE_LD_STATIC_DYNAMIC
1769 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1779 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1781 /* Ug. We don't know shared library extensions. Hope that
1782 systems that use this form don't do shared libraries. */
1783 init_gcc_specs (&obstack
,
1787 #ifdef USE_LIBUNWIND_EXCEPTIONS
1796 obstack_1grow (&obstack
, *p
);
1797 in_sep
= (*p
== ' ');
1802 obstack_1grow (&obstack
, '\0');
1803 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1806 #ifdef USE_AS_TRADITIONAL_FORMAT
1807 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1809 static const char tf
[] = "--traditional-format ";
1810 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1811 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1812 asm_spec
= XOBFINISH (&obstack
, const char *);
1816 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1817 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1818 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1819 link_spec
= XOBFINISH (&obstack
, const char *);
1825 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1826 removed; If the spec starts with a + then SPEC is added to the end of the
1830 set_spec (const char *name
, const char *spec
)
1832 struct spec_list
*sl
;
1833 const char *old_spec
;
1834 int name_len
= strlen (name
);
1837 /* If this is the first call, initialize the statically allocated specs. */
1840 struct spec_list
*next
= (struct spec_list
*) 0;
1841 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1843 sl
= &static_specs
[i
];
1850 /* See if the spec already exists. */
1851 for (sl
= specs
; sl
; sl
= sl
->next
)
1852 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1857 /* Not found - make it. */
1858 sl
= XNEW (struct spec_list
);
1859 sl
->name
= xstrdup (name
);
1860 sl
->name_len
= name_len
;
1861 sl
->ptr_spec
= &sl
->ptr
;
1863 *(sl
->ptr_spec
) = "";
1868 old_spec
= *(sl
->ptr_spec
);
1869 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1870 ? concat (old_spec
, spec
+ 1, NULL
)
1875 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1878 /* Free the old spec. */
1879 if (old_spec
&& sl
->alloc_p
)
1880 free ((void *) old_spec
);
1885 /* Accumulate a command (program name and args), and run it. */
1887 /* Vector of pointers to arguments in the current line of specifications. */
1889 static const char **argbuf
;
1891 /* Number of elements allocated in argbuf. */
1893 static int argbuf_length
;
1895 /* Number of elements in argbuf currently in use (containing args). */
1897 static int argbuf_index
;
1899 /* Position in the argbuf array containing the name of the output file
1900 (the value associated with the "-o" flag). */
1902 static int have_o_argbuf_index
= 0;
1904 /* Were the options -c or -S passed. */
1905 static int have_c
= 0;
1907 /* Was the option -o passed. */
1908 static int have_o
= 0;
1910 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1911 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1914 static struct temp_name
{
1915 const char *suffix
; /* suffix associated with the code. */
1916 int length
; /* strlen (suffix). */
1917 int unique
; /* Indicates whether %g or %u/%U was used. */
1918 const char *filename
; /* associated filename. */
1919 int filename_length
; /* strlen (filename). */
1920 struct temp_name
*next
;
1923 /* Number of commands executed so far. */
1925 static int execution_count
;
1927 /* Number of commands that exited with a signal. */
1929 static int signal_count
;
1931 /* Name with which this program was invoked. */
1933 static const char *programname
;
1935 /* Allocate the argument vector. */
1941 argbuf
= XNEWVEC (const char *, argbuf_length
);
1944 /* Clear out the vector of arguments (after a command is executed). */
1952 /* Add one argument to the vector at the end.
1953 This is done when a space is seen or at the end of the line.
1954 If DELETE_ALWAYS is nonzero, the arg is a filename
1955 and the file should be deleted eventually.
1956 If DELETE_FAILURE is nonzero, the arg is a filename
1957 and the file should be deleted if this compilation fails. */
1960 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1962 if (argbuf_index
+ 1 == argbuf_length
)
1963 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1965 argbuf
[argbuf_index
++] = arg
;
1966 argbuf
[argbuf_index
] = 0;
1968 if (strcmp (arg
, "-o") == 0)
1969 have_o_argbuf_index
= argbuf_index
;
1970 if (delete_always
|| delete_failure
)
1971 record_temp_file (arg
, delete_always
, delete_failure
);
1974 /* Load specs from a file name named FILENAME, replacing occurrences of
1975 various different types of line-endings, \r\n, \n\r and just \r, with
1979 load_specs (const char *filename
)
1983 struct stat statbuf
;
1990 notice ("Reading specs from %s\n", filename
);
1992 /* Open and stat the file. */
1993 desc
= open (filename
, O_RDONLY
, 0);
1995 pfatal_with_name (filename
);
1996 if (stat (filename
, &statbuf
) < 0)
1997 pfatal_with_name (filename
);
1999 /* Read contents of file into BUFFER. */
2000 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2001 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2003 pfatal_with_name (filename
);
2004 buffer
[readlen
] = 0;
2007 specs
= XNEWVEC (char, readlen
+ 1);
2009 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2015 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2017 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2031 /* Read compilation specs from a file named FILENAME,
2032 replacing the default ones.
2034 A suffix which starts with `*' is a definition for
2035 one of the machine-specific sub-specs. The "suffix" should be
2036 *asm, *cc1, *cpp, *link, *startfile, etc.
2037 The corresponding spec is stored in asm_spec, etc.,
2038 rather than in the `compilers' vector.
2040 Anything invalid in the file is a fatal error. */
2043 read_specs (const char *filename
, int main_p
)
2048 buffer
= load_specs (filename
);
2050 /* Scan BUFFER for specs, putting them in the vector. */
2056 char *in
, *out
, *p1
, *p2
, *p3
;
2058 /* Advance P in BUFFER to the next nonblank nocomment line. */
2059 p
= skip_whitespace (p
);
2063 /* Is this a special command that starts with '%'? */
2064 /* Don't allow this for the main specs file, since it would
2065 encourage people to overwrite it. */
2066 if (*p
== '%' && !main_p
)
2069 while (*p
&& *p
!= '\n')
2075 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2076 && (p1
[sizeof "%include" - 1] == ' '
2077 || p1
[sizeof "%include" - 1] == '\t'))
2081 p1
+= sizeof ("%include");
2082 while (*p1
== ' ' || *p1
== '\t')
2085 if (*p1
++ != '<' || p
[-2] != '>')
2086 fatal ("specs %%include syntax malformed after %ld characters",
2087 (long) (p1
- buffer
+ 1));
2090 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2091 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2094 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2095 && (p1
[sizeof "%include_noerr" - 1] == ' '
2096 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2100 p1
+= sizeof "%include_noerr";
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);
2111 read_specs (new_filename
, FALSE
);
2112 else if (verbose_flag
)
2113 notice ("could not find specs file %s\n", p1
);
2116 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2117 && (p1
[sizeof "%rename" - 1] == ' '
2118 || p1
[sizeof "%rename" - 1] == '\t'))
2121 struct spec_list
*sl
;
2122 struct spec_list
*newsl
;
2124 /* Get original name. */
2125 p1
+= sizeof "%rename";
2126 while (*p1
== ' ' || *p1
== '\t')
2129 if (! ISALPHA ((unsigned char) *p1
))
2130 fatal ("specs %%rename syntax malformed after %ld characters",
2131 (long) (p1
- buffer
));
2134 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2137 if (*p2
!= ' ' && *p2
!= '\t')
2138 fatal ("specs %%rename syntax malformed after %ld characters",
2139 (long) (p2
- buffer
));
2143 while (*p2
== ' ' || *p2
== '\t')
2146 if (! ISALPHA ((unsigned char) *p2
))
2147 fatal ("specs %%rename syntax malformed after %ld characters",
2148 (long) (p2
- buffer
));
2150 /* Get new spec name. */
2152 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2156 fatal ("specs %%rename syntax malformed after %ld characters",
2157 (long) (p3
- buffer
));
2160 for (sl
= specs
; sl
; sl
= sl
->next
)
2161 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2165 fatal ("specs %s spec was not found to be renamed", p1
);
2167 if (strcmp (p1
, p2
) == 0)
2170 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2171 if (strcmp (newsl
->name
, p2
) == 0)
2172 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2177 notice ("rename spec %s to %s\n", p1
, p2
);
2179 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2183 set_spec (p2
, *(sl
->ptr_spec
));
2185 free ((void *) *(sl
->ptr_spec
));
2187 *(sl
->ptr_spec
) = "";
2192 fatal ("specs unknown %% command after %ld characters",
2193 (long) (p1
- buffer
));
2196 /* Find the colon that should end the suffix. */
2198 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2201 /* The colon shouldn't be missing. */
2203 fatal ("specs file malformed after %ld characters",
2204 (long) (p1
- buffer
));
2206 /* Skip back over trailing whitespace. */
2208 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2211 /* Copy the suffix to a string. */
2212 suffix
= save_string (p
, p2
- p
);
2213 /* Find the next line. */
2214 p
= skip_whitespace (p1
+ 1);
2216 fatal ("specs file malformed after %ld characters",
2217 (long) (p
- buffer
));
2220 /* Find next blank line or end of string. */
2221 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2224 /* Specs end at the blank line and do not include the newline. */
2225 spec
= save_string (p
, p1
- p
);
2228 /* Delete backslash-newline sequences from the spec. */
2233 if (in
[0] == '\\' && in
[1] == '\n')
2235 else if (in
[0] == '#')
2236 while (*in
&& *in
!= '\n')
2244 if (suffix
[0] == '*')
2246 if (! strcmp (suffix
, "*link_command"))
2247 link_command_spec
= spec
;
2249 set_spec (suffix
+ 1, spec
);
2253 /* Add this pair to the vector. */
2255 = xrealloc (compilers
,
2256 (n_compilers
+ 2) * sizeof (struct compiler
));
2258 compilers
[n_compilers
].suffix
= suffix
;
2259 compilers
[n_compilers
].spec
= spec
;
2261 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2265 link_command_spec
= spec
;
2268 if (link_command_spec
== 0)
2269 fatal ("spec file has no spec for linking");
2272 /* Record the names of temporary files we tell compilers to write,
2273 and delete them at the end of the run. */
2275 /* This is the common prefix we use to make temp file names.
2276 It is chosen once for each run of this program.
2277 It is substituted into a spec by %g or %j.
2278 Thus, all temp file names contain this prefix.
2279 In practice, all temp file names start with this prefix.
2281 This prefix comes from the envvar TMPDIR if it is defined;
2282 otherwise, from the P_tmpdir macro if that is defined;
2283 otherwise, in /usr/tmp or /tmp;
2284 or finally the current directory if all else fails. */
2286 static const char *temp_filename
;
2288 /* Length of the prefix. */
2290 static int temp_filename_length
;
2292 /* Define the list of temporary files to delete. */
2297 struct temp_file
*next
;
2300 /* Queue of files to delete on success or failure of compilation. */
2301 static struct temp_file
*always_delete_queue
;
2302 /* Queue of files to delete on failure of compilation. */
2303 static struct temp_file
*failure_delete_queue
;
2305 /* Record FILENAME as a file to be deleted automatically.
2306 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2307 otherwise delete it in any case.
2308 FAIL_DELETE nonzero means delete it if a compilation step fails;
2309 otherwise delete it in any case. */
2312 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2314 char *const name
= xstrdup (filename
);
2318 struct temp_file
*temp
;
2319 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2320 if (! strcmp (name
, temp
->name
))
2323 temp
= XNEW (struct temp_file
);
2324 temp
->next
= always_delete_queue
;
2326 always_delete_queue
= temp
;
2333 struct temp_file
*temp
;
2334 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2335 if (! strcmp (name
, temp
->name
))
2338 temp
= XNEW (struct temp_file
);
2339 temp
->next
= failure_delete_queue
;
2341 failure_delete_queue
= temp
;
2347 /* Delete all the temporary files whose names we previously recorded. */
2349 #ifndef DELETE_IF_ORDINARY
2350 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2353 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2354 if (unlink (NAME) < 0) \
2356 perror_with_name (NAME); \
2361 delete_if_ordinary (const char *name
)
2367 printf ("Delete %s? (y or n) ", name
);
2371 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2374 if (i
== 'y' || i
== 'Y')
2376 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2380 delete_temp_files (void)
2382 struct temp_file
*temp
;
2384 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2385 delete_if_ordinary (temp
->name
);
2386 always_delete_queue
= 0;
2389 /* Delete all the files to be deleted on error. */
2392 delete_failure_queue (void)
2394 struct temp_file
*temp
;
2396 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2397 delete_if_ordinary (temp
->name
);
2401 clear_failure_queue (void)
2403 failure_delete_queue
= 0;
2406 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2408 If DO_MULTI is true iterate over the paths twice, first with multilib
2409 suffix then without, otherwise iterate over the paths once without
2410 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2411 to avoid visiting the same path twice, but we could do better. For
2412 instance, /usr/lib/../lib is considered different from /usr/lib.
2413 At least EXTRA_SPACE chars past the end of the path passed to
2414 CALLBACK are available for use by the callback.
2415 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2417 Returns the value returned by CALLBACK. */
2420 for_each_path (const struct path_prefix
*paths
,
2423 void *(*callback
) (char *, void *),
2424 void *callback_info
)
2426 struct prefix_list
*pl
;
2427 const char *multi_dir
= NULL
;
2428 const char *multi_os_dir
= NULL
;
2429 const char *multi_suffix
;
2430 const char *just_multi_suffix
;
2433 bool skip_multi_dir
= false;
2434 bool skip_multi_os_dir
= false;
2436 multi_suffix
= machine_suffix
;
2437 just_multi_suffix
= just_machine_suffix
;
2438 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2440 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2441 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2442 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2444 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2445 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2449 size_t multi_dir_len
= 0;
2450 size_t multi_os_dir_len
= 0;
2452 size_t just_suffix_len
;
2456 multi_dir_len
= strlen (multi_dir
);
2458 multi_os_dir_len
= strlen (multi_os_dir
);
2459 suffix_len
= strlen (multi_suffix
);
2460 just_suffix_len
= strlen (just_multi_suffix
);
2464 len
= paths
->max_len
+ extra_space
+ 1;
2465 if (suffix_len
> multi_os_dir_len
)
2468 len
+= multi_os_dir_len
;
2469 path
= XNEWVEC (char, len
);
2472 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2474 len
= strlen (pl
->prefix
);
2475 memcpy (path
, pl
->prefix
, len
);
2477 /* Look first in MACHINE/VERSION subdirectory. */
2478 if (!skip_multi_dir
)
2480 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2481 ret
= callback (path
, callback_info
);
2486 /* Some paths are tried with just the machine (ie. target)
2487 subdir. This is used for finding as, ld, etc. */
2489 && pl
->require_machine_suffix
== 2)
2491 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2492 ret
= callback (path
, callback_info
);
2497 /* Now try the base path. */
2498 if (!pl
->require_machine_suffix
2499 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2501 const char *this_multi
;
2502 size_t this_multi_len
;
2504 if (pl
->os_multilib
)
2506 this_multi
= multi_os_dir
;
2507 this_multi_len
= multi_os_dir_len
;
2511 this_multi
= multi_dir
;
2512 this_multi_len
= multi_dir_len
;
2516 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2520 ret
= callback (path
, callback_info
);
2528 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2531 /* Run through the paths again, this time without multilibs.
2532 Don't repeat any we have already seen. */
2535 free ((char *) multi_dir
);
2537 free ((char *) multi_suffix
);
2538 multi_suffix
= machine_suffix
;
2539 free ((char *) just_multi_suffix
);
2540 just_multi_suffix
= just_machine_suffix
;
2543 skip_multi_dir
= true;
2546 free ((char *) multi_os_dir
);
2547 multi_os_dir
= NULL
;
2550 skip_multi_os_dir
= true;
2555 free ((char *) multi_dir
);
2556 free ((char *) multi_suffix
);
2557 free ((char *) just_multi_suffix
);
2560 free ((char *) multi_os_dir
);
2566 /* Callback for build_search_list. Adds path to obstack being built. */
2568 struct add_to_obstack_info
{
2575 add_to_obstack (char *path
, void *data
)
2577 struct add_to_obstack_info
*info
= data
;
2579 if (info
->check_dir
&& !is_directory (path
, false))
2582 if (!info
->first_time
)
2583 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2585 obstack_grow (info
->ob
, path
, strlen (path
));
2587 info
->first_time
= false;
2591 /* Build a list of search directories from PATHS.
2592 PREFIX is a string to prepend to the list.
2593 If CHECK_DIR_P is true we ensure the directory exists.
2594 If DO_MULTI is true, multilib paths are output first, then
2596 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2597 It is also used by the --print-search-dirs flag. */
2600 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2601 bool check_dir
, bool do_multi
)
2603 struct add_to_obstack_info info
;
2605 info
.ob
= &collect_obstack
;
2606 info
.check_dir
= check_dir
;
2607 info
.first_time
= true;
2609 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2610 obstack_1grow (&collect_obstack
, '=');
2612 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2614 obstack_1grow (&collect_obstack
, '\0');
2615 return XOBFINISH (&collect_obstack
, char *);
2618 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2622 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2625 putenv (build_search_list (paths
, env_var
, true, do_multi
));
2628 /* Check whether NAME can be accessed in MODE. This is like access,
2629 except that it never considers directories to be executable. */
2632 access_check (const char *name
, int mode
)
2638 if (stat (name
, &st
) < 0
2639 || S_ISDIR (st
.st_mode
))
2643 return access (name
, mode
);
2646 /* Callback for find_a_file. Appends the file name to the directory
2647 path. If the resulting file exists in the right mode, return the
2648 full pathname to the file. */
2650 struct file_at_path_info
{
2659 file_at_path (char *path
, void *data
)
2661 struct file_at_path_info
*info
= data
;
2662 size_t len
= strlen (path
);
2664 memcpy (path
+ len
, info
->name
, info
->name_len
);
2665 len
+= info
->name_len
;
2667 /* Some systems have a suffix for executable files.
2668 So try appending that first. */
2669 if (info
->suffix_len
)
2671 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2672 if (access_check (path
, info
->mode
) == 0)
2677 if (access_check (path
, info
->mode
) == 0)
2683 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2684 access to check permissions. If DO_MULTI is true, search multilib
2685 paths then non-multilib paths, otherwise do not search multilib paths.
2686 Return 0 if not found, otherwise return its name, allocated with malloc. */
2689 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2692 struct file_at_path_info info
;
2694 #ifdef DEFAULT_ASSEMBLER
2695 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2696 return xstrdup (DEFAULT_ASSEMBLER
);
2699 #ifdef DEFAULT_LINKER
2700 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2701 return xstrdup (DEFAULT_LINKER
);
2704 /* Determine the filename to execute (special case for absolute paths). */
2706 if (IS_ABSOLUTE_PATH (name
))
2708 if (access (name
, mode
) == 0)
2709 return xstrdup (name
);
2715 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2716 info
.name_len
= strlen (info
.name
);
2717 info
.suffix_len
= strlen (info
.suffix
);
2720 return for_each_path (pprefix
, do_multi
, info
.name_len
+ info
.suffix_len
,
2721 file_at_path
, &info
);
2724 /* Ranking of prefixes in the sort list. -B prefixes are put before
2727 enum path_prefix_priority
2729 PREFIX_PRIORITY_B_OPT
,
2730 PREFIX_PRIORITY_LAST
2733 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2734 order according to PRIORITY. Within each PRIORITY, new entries are
2737 If WARN is nonzero, we will warn if no file is found
2738 through this prefix. WARN should point to an int
2739 which will be set to 1 if this entry is used.
2741 COMPONENT is the value to be passed to update_path.
2743 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2744 the complete value of machine_suffix.
2745 2 means try both machine_suffix and just_machine_suffix. */
2748 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2749 const char *component
, /* enum prefix_priority */ int priority
,
2750 int require_machine_suffix
, int os_multilib
)
2752 struct prefix_list
*pl
, **prev
;
2755 for (prev
= &pprefix
->plist
;
2756 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2757 prev
= &(*prev
)->next
)
2760 /* Keep track of the longest prefix. */
2762 prefix
= update_path (prefix
, component
);
2763 len
= strlen (prefix
);
2764 if (len
> pprefix
->max_len
)
2765 pprefix
->max_len
= len
;
2767 pl
= XNEW (struct prefix_list
);
2768 pl
->prefix
= prefix
;
2769 pl
->require_machine_suffix
= require_machine_suffix
;
2770 pl
->priority
= priority
;
2771 pl
->os_multilib
= os_multilib
;
2773 /* Insert after PREV. */
2778 /* Same as add_prefix, but prepending target_system_root to prefix. */
2779 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2781 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2782 const char *component
,
2783 /* enum prefix_priority */ int priority
,
2784 int require_machine_suffix
, int os_multilib
)
2786 if (!IS_ABSOLUTE_PATH (prefix
))
2787 fatal ("system path '%s' is not absolute", prefix
);
2789 if (target_system_root
)
2791 if (target_sysroot_suffix
)
2792 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2793 prefix
= concat (target_system_root
, prefix
, NULL
);
2795 /* We have to override this because GCC's notion of sysroot
2796 moves along with GCC. */
2800 add_prefix (pprefix
, prefix
, component
, priority
,
2801 require_machine_suffix
, os_multilib
);
2804 /* Execute the command specified by the arguments on the current line of spec.
2805 When using pipes, this includes several piped-together commands
2806 with `|' between them.
2808 Return 0 if successful, -1 if failed. */
2814 int n_commands
; /* # of command. */
2816 struct pex_obj
*pex
;
2819 const char *prog
; /* program name. */
2820 const char **argv
; /* vector of args. */
2823 struct command
*commands
; /* each command buffer with above info. */
2825 gcc_assert (!processing_spec_function
);
2827 /* Count # of piped commands. */
2828 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2829 if (strcmp (argbuf
[i
], "|") == 0)
2832 /* Get storage for each command. */
2833 commands
= alloca (n_commands
* sizeof (struct command
));
2835 /* Split argbuf into its separate piped processes,
2836 and record info about each one.
2837 Also search for the programs that are to be run. */
2839 commands
[0].prog
= argbuf
[0]; /* first command. */
2840 commands
[0].argv
= &argbuf
[0];
2841 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2844 commands
[0].argv
[0] = string
;
2846 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2847 if (strcmp (argbuf
[i
], "|") == 0)
2848 { /* each command. */
2849 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2850 fatal ("-pipe not supported");
2852 argbuf
[i
] = 0; /* termination of command args. */
2853 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2854 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2855 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2858 commands
[n_commands
].argv
[0] = string
;
2862 argbuf
[argbuf_index
] = 0;
2864 /* If -v, print what we are about to do, and maybe query. */
2868 /* For help listings, put a blank line between sub-processes. */
2869 if (print_help_list
)
2870 fputc ('\n', stderr
);
2872 /* Print each piped command as a separate line. */
2873 for (i
= 0; i
< n_commands
; i
++)
2875 const char *const *j
;
2877 if (verbose_only_flag
)
2879 for (j
= commands
[i
].argv
; *j
; j
++)
2882 fprintf (stderr
, " \"");
2883 for (p
= *j
; *p
; ++p
)
2885 if (*p
== '"' || *p
== '\\' || *p
== '$')
2886 fputc ('\\', stderr
);
2889 fputc ('"', stderr
);
2893 for (j
= commands
[i
].argv
; *j
; j
++)
2894 fprintf (stderr
, " %s", *j
);
2896 /* Print a pipe symbol after all but the last command. */
2897 if (i
+ 1 != n_commands
)
2898 fprintf (stderr
, " |");
2899 fprintf (stderr
, "\n");
2902 if (verbose_only_flag
!= 0)
2904 /* verbose_only_flag should act as if the spec was
2905 executed, so increment execution_count before
2906 returning. This prevents spurious warnings about
2907 unused linker input files, etc. */
2912 notice ("\nGo ahead? (y or n) ");
2916 while (getchar () != '\n')
2919 if (i
!= 'y' && i
!= 'Y')
2924 #ifdef ENABLE_VALGRIND_CHECKING
2925 /* Run the each command through valgrind. To simplify prepending the
2926 path to valgrind and the option "-q" (for quiet operation unless
2927 something triggers), we allocate a separate argv array. */
2929 for (i
= 0; i
< n_commands
; i
++)
2935 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2938 argv
= alloca ((argc
+ 3) * sizeof (char *));
2940 argv
[0] = VALGRIND_PATH
;
2942 for (j
= 2; j
< argc
+ 2; j
++)
2943 argv
[j
] = commands
[i
].argv
[j
- 2];
2946 commands
[i
].argv
= argv
;
2947 commands
[i
].prog
= argv
[0];
2951 /* Run each piped subprocess. */
2953 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2954 programname
, temp_filename
);
2956 pfatal_with_name (_("pex_init failed"));
2958 for (i
= 0; i
< n_commands
; i
++)
2962 const char *string
= commands
[i
].argv
[0];
2964 errmsg
= pex_run (pex
,
2965 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2966 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2967 string
, (char * const *) commands
[i
].argv
,
2976 pfatal_with_name (errmsg
);
2980 if (string
!= commands
[i
].prog
)
2981 free ((void *) string
);
2986 /* Wait for all the subprocesses to finish. */
2990 struct pex_time
*times
= NULL
;
2993 statuses
= alloca (n_commands
* sizeof (int));
2994 if (!pex_get_status (pex
, n_commands
, statuses
))
2995 pfatal_with_name (_("failed to get exit status"));
2999 times
= alloca (n_commands
* sizeof (struct pex_time
));
3000 if (!pex_get_times (pex
, n_commands
, times
))
3001 pfatal_with_name (_("failed to get process times"));
3006 for (i
= 0; i
< n_commands
; ++i
)
3008 int status
= statuses
[i
];
3010 if (WIFSIGNALED (status
))
3013 /* SIGPIPE is a special case. It happens in -pipe mode
3014 when the compiler dies before the preprocessor is done,
3015 or the assembler dies before the compiler is done.
3016 There's generally been an error already, and this is
3017 just fallout. So don't generate another error unless
3018 we would otherwise have succeeded. */
3019 if (WTERMSIG (status
) == SIGPIPE
3020 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3028 Internal error: %s (program %s)\n\
3029 Please submit a full bug report.\n\
3030 See %s for instructions.",
3031 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3034 else if (WIFEXITED (status
)
3035 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3037 if (WEXITSTATUS (status
) > greatest_status
)
3038 greatest_status
= WEXITSTATUS (status
);
3044 struct pex_time
*pt
= ×
[i
];
3047 ut
= ((double) pt
->user_seconds
3048 + (double) pt
->user_microseconds
/ 1.0e6
);
3049 st
= ((double) pt
->system_seconds
3050 + (double) pt
->system_microseconds
/ 1.0e6
);
3053 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3061 /* Find all the switches given to us
3062 and make a vector describing them.
3063 The elements of the vector are strings, one per switch given.
3064 If a switch uses following arguments, then the `part1' field
3065 is the switch itself and the `args' field
3066 is a null-terminated vector containing the following arguments.
3067 The `live_cond' field is:
3069 1 if the switch is true in a conditional spec,
3070 -1 if false (overridden by a later switch)
3071 -2 if this switch should be ignored (used in %<S)
3072 The `validated' field is nonzero if any spec has looked at this switch;
3073 if it remains zero at the end of the run, it must be meaningless. */
3076 #define SWITCH_FALSE -1
3077 #define SWITCH_IGNORE -2
3078 #define SWITCH_LIVE 1
3085 unsigned char validated
;
3086 unsigned char ordering
;
3089 static struct switchstr
*switches
;
3091 static int n_switches
;
3093 /* Language is one of three things:
3095 1) The name of a real programming language.
3096 2) NULL, indicating that no one has figured out
3098 3) '*', indicating that the file should be passed
3103 const char *language
;
3104 struct compiler
*incompiler
;
3109 /* Also a vector of input files specified. */
3111 static struct infile
*infiles
;
3115 /* True if multiple input files are being compiled to a single
3118 static bool combine_inputs
;
3120 /* This counts the number of libraries added by lang_specific_driver, so that
3121 we can tell if there were any user supplied any files or libraries. */
3123 static int added_libraries
;
3125 /* And a vector of corresponding output files is made up later. */
3127 const char **outfiles
;
3129 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3131 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3132 is true if we should look for an executable suffix. DO_OBJ
3133 is true if we should look for an object suffix. */
3136 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3137 int do_obj ATTRIBUTE_UNUSED
)
3139 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3147 len
= strlen (name
);
3149 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3150 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3151 if (do_obj
&& len
> 2
3152 && name
[len
- 2] == '.'
3153 && name
[len
- 1] == 'o')
3155 obstack_grow (&obstack
, name
, len
- 2);
3156 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3157 name
= XOBFINISH (&obstack
, const char *);
3161 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3162 /* If there is no filetype, make it the executable suffix (which includes
3163 the "."). But don't get confused if we have just "-o". */
3164 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3167 for (i
= len
- 1; i
>= 0; i
--)
3168 if (IS_DIR_SEPARATOR (name
[i
]))
3171 for (i
++; i
< len
; i
++)
3175 obstack_grow (&obstack
, name
, len
);
3176 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3177 strlen (TARGET_EXECUTABLE_SUFFIX
));
3178 name
= XOBFINISH (&obstack
, const char *);
3185 /* Display the command line switches accepted by gcc. */
3189 printf (_("Usage: %s [options] file...\n"), programname
);
3190 fputs (_("Options:\n"), stdout
);
3192 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3193 fputs (_(" --help Display this information\n"), stdout
);
3194 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3195 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3196 fputs (_(" Display specific types of command line options\n"), stdout
);
3198 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3199 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3200 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3201 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3202 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3203 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3204 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3205 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3206 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3208 -print-multi-lib Display the mapping between command line options and\n\
3209 multiple library search directories\n"), stdout
);
3210 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3211 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3212 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3213 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3214 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3215 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3216 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3217 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3218 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3219 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3220 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3221 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3222 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3223 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3225 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3226 and libraries\n"), stdout
);
3227 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3228 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3229 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3230 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3231 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3232 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3233 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3234 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3235 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3237 -x <language> Specify the language of the following input files\n\
3238 Permissible languages include: c c++ assembler none\n\
3239 'none' means revert to the default behavior of\n\
3240 guessing the language based on the file's extension\n\
3244 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3245 passed on to the various sub-processes invoked by %s. In order to pass\n\
3246 other options on to these processes the -W<letter> options must be used.\n\
3249 /* The rest of the options are displayed by invocations of the various
3254 add_preprocessor_option (const char *option
, int len
)
3256 n_preprocessor_options
++;
3258 if (! preprocessor_options
)
3259 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3261 preprocessor_options
= xrealloc (preprocessor_options
,
3262 n_preprocessor_options
* sizeof (char *));
3264 preprocessor_options
[n_preprocessor_options
- 1] =
3265 save_string (option
, len
);
3269 add_assembler_option (const char *option
, int len
)
3271 n_assembler_options
++;
3273 if (! assembler_options
)
3274 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3276 assembler_options
= xrealloc (assembler_options
,
3277 n_assembler_options
* sizeof (char *));
3279 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3283 add_linker_option (const char *option
, int len
)
3287 if (! linker_options
)
3288 linker_options
= XNEWVEC (char *, n_linker_options
);
3290 linker_options
= xrealloc (linker_options
,
3291 n_linker_options
* sizeof (char *));
3293 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3296 /* Create the vector `switches' and its contents.
3297 Store its length in `n_switches'. */
3300 process_command (int argc
, const char **argv
)
3305 const char *spec_lang
= 0;
3306 int last_language_n_infiles
;
3307 int lang_n_infiles
= 0;
3308 #ifdef MODIFY_TARGET_NAME
3309 int is_modify_target_name
;
3312 const char *tooldir_prefix
;
3314 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3318 added_libraries
= 0;
3320 /* Figure compiler version from version string. */
3322 compiler_version
= temp1
= xstrdup (version_string
);
3324 for (; *temp1
; ++temp1
)
3333 /* If there is a -V or -b option (or both), process it now, before
3334 trying to interpret the rest of the command line.
3335 Use heuristic that all configuration names must have at least
3336 one dash '-'. This allows us to pass options starting with -b. */
3337 if (argc
> 1 && argv
[1][0] == '-'
3338 && (argv
[1][1] == 'V' ||
3339 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3341 const char *new_version
= DEFAULT_TARGET_VERSION
;
3342 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3343 const char *progname
= argv
[0];
3348 while (argc
> 1 && argv
[1][0] == '-'
3349 && (argv
[1][1] == 'V' ||
3350 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3352 char opt
= argv
[1][1];
3354 if (argv
[1][2] != '\0')
3367 fatal ("'-%c' option must have argument", opt
);
3374 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3375 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3377 new_argv0
= xmemdup (progname
, baselen
,
3378 baselen
+ concat_length (new_version
, new_machine
,
3379 "-gcc-", NULL
) + 1);
3380 strcpy (new_argv0
+ baselen
, new_machine
);
3381 strcat (new_argv0
, "-gcc-");
3382 strcat (new_argv0
, new_version
);
3384 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3385 (argc
+ 1) * sizeof (argv
[0]));
3386 new_argv
[0] = new_argv0
;
3388 execvp (new_argv0
, new_argv
);
3389 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3392 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3393 see if we can create it from the pathname specified in argv[0]. */
3395 gcc_libexec_prefix
= standard_libexec_prefix
;
3397 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3398 if (!gcc_exec_prefix
)
3400 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3401 standard_exec_prefix
);
3402 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3403 standard_bindir_prefix
,
3404 standard_libexec_prefix
);
3405 if (gcc_exec_prefix
)
3406 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3410 /* make_relative_prefix requires a program name, but
3411 GCC_EXEC_PREFIX is typically a directory name with a trailing
3412 / (which is ignored by make_relative_prefix), so append a
3414 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3415 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3416 standard_exec_prefix
,
3417 standard_libexec_prefix
);
3419 /* The path is unrelocated, so fallback to the original setting. */
3420 if (!gcc_libexec_prefix
)
3421 gcc_libexec_prefix
= standard_libexec_prefix
;
3427 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3428 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3429 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3431 if (gcc_exec_prefix
)
3433 int len
= strlen (gcc_exec_prefix
);
3435 if (len
> (int) sizeof ("/lib/gcc/") - 1
3436 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3438 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3439 if (IS_DIR_SEPARATOR (*temp
)
3440 && strncmp (temp
+ 1, "lib", 3) == 0
3441 && IS_DIR_SEPARATOR (temp
[4])
3442 && strncmp (temp
+ 5, "gcc", 3) == 0)
3443 len
-= sizeof ("/lib/gcc/") - 1;
3446 set_std_prefix (gcc_exec_prefix
, len
);
3447 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3448 PREFIX_PRIORITY_LAST
, 0, 0);
3449 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3450 PREFIX_PRIORITY_LAST
, 0, 0);
3453 /* COMPILER_PATH and LIBRARY_PATH have values
3454 that are lists of directory names with colons. */
3456 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3459 const char *startp
, *endp
;
3460 char *nstore
= alloca (strlen (temp
) + 3);
3462 startp
= endp
= temp
;
3465 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3467 strncpy (nstore
, startp
, endp
- startp
);
3469 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3470 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3472 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3473 nstore
[endp
- startp
+ 1] = 0;
3476 nstore
[endp
- startp
] = 0;
3477 add_prefix (&exec_prefixes
, nstore
, 0,
3478 PREFIX_PRIORITY_LAST
, 0, 0);
3479 add_prefix (&include_prefixes
, nstore
, 0,
3480 PREFIX_PRIORITY_LAST
, 0, 0);
3483 endp
= startp
= endp
+ 1;
3490 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3491 if (temp
&& *cross_compile
== '0')
3493 const char *startp
, *endp
;
3494 char *nstore
= alloca (strlen (temp
) + 3);
3496 startp
= endp
= temp
;
3499 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3501 strncpy (nstore
, startp
, endp
- startp
);
3503 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3504 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3506 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3507 nstore
[endp
- startp
+ 1] = 0;
3510 nstore
[endp
- startp
] = 0;
3511 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3512 PREFIX_PRIORITY_LAST
, 0, 1);
3515 endp
= startp
= endp
+ 1;
3522 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3523 GET_ENVIRONMENT (temp
, "LPATH");
3524 if (temp
&& *cross_compile
== '0')
3526 const char *startp
, *endp
;
3527 char *nstore
= alloca (strlen (temp
) + 3);
3529 startp
= endp
= temp
;
3532 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3534 strncpy (nstore
, startp
, endp
- startp
);
3536 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3537 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3539 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3540 nstore
[endp
- startp
+ 1] = 0;
3543 nstore
[endp
- startp
] = 0;
3544 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3545 PREFIX_PRIORITY_LAST
, 0, 1);
3548 endp
= startp
= endp
+ 1;
3555 /* Convert new-style -- options to old-style. */
3556 translate_options (&argc
, (const char *const **) &argv
);
3558 /* Do language-specific adjustment/addition of flags. */
3559 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3561 /* Scan argv twice. Here, the first time, just count how many switches
3562 there will be in their vector, and how many input files in theirs.
3563 Here we also parse the switches that cc itself uses (e.g. -v). */
3565 for (i
= 1; i
< argc
; i
++)
3567 if (! strcmp (argv
[i
], "-dumpspecs"))
3569 struct spec_list
*sl
;
3571 for (sl
= specs
; sl
; sl
= sl
->next
)
3572 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3573 if (link_command_spec
)
3574 printf ("*link_command:\n%s\n\n", link_command_spec
);
3577 else if (! strcmp (argv
[i
], "-dumpversion"))
3579 printf ("%s\n", spec_version
);
3582 else if (! strcmp (argv
[i
], "-dumpmachine"))
3584 printf ("%s\n", spec_machine
);
3587 else if (strcmp (argv
[i
], "-fversion") == 0)
3589 /* translate_options () has turned --version into -fversion. */
3590 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3591 printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
3593 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3594 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3598 else if (strcmp (argv
[i
], "-fhelp") == 0)
3600 /* translate_options () has turned --help into -fhelp. */
3601 print_help_list
= 1;
3603 /* We will be passing a dummy file on to the sub-processes. */
3607 /* CPP driver cannot obtain switch from cc1_options. */
3609 add_preprocessor_option ("--help", 6);
3610 add_assembler_option ("--help", 6);
3611 add_linker_option ("--help", 6);
3613 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3615 /* translate_options () has turned --help into -fhelp. */
3616 print_subprocess_help
= 2;
3618 /* We will be passing a dummy file on to the sub-processes. */
3622 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3624 /* translate_options() has turned --target-help into -ftarget-help. */
3625 print_subprocess_help
= 1;
3627 /* We will be passing a dummy file on to the sub-processes. */
3631 /* CPP driver cannot obtain switch from cc1_options. */
3633 add_preprocessor_option ("--target-help", 13);
3634 add_assembler_option ("--target-help", 13);
3635 add_linker_option ("--target-help", 13);
3637 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3639 pass_exit_codes
= 1;
3642 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3643 print_search_dirs
= 1;
3644 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3645 print_file_name
= "libgcc.a";
3646 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3647 print_file_name
= argv
[i
] + 17;
3648 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3649 print_prog_name
= argv
[i
] + 17;
3650 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3651 print_multi_lib
= 1;
3652 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3653 print_multi_directory
= 1;
3654 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3655 print_multi_os_directory
= 1;
3656 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3657 print_sysroot_headers_suffix
= 1;
3658 else if (! strncmp (argv
[i
], "-Wa,", 4))
3661 /* Pass the rest of this option to the assembler. */
3663 /* Split the argument at commas. */
3665 for (j
= 4; argv
[i
][j
]; j
++)
3666 if (argv
[i
][j
] == ',')
3668 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3672 /* Record the part after the last comma. */
3673 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3675 else if (! strncmp (argv
[i
], "-Wp,", 4))
3678 /* Pass the rest of this option to the preprocessor. */
3680 /* Split the argument at commas. */
3682 for (j
= 4; argv
[i
][j
]; j
++)
3683 if (argv
[i
][j
] == ',')
3685 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3689 /* Record the part after the last comma. */
3690 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3692 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3693 /* The +e options to the C++ front-end. */
3695 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3698 /* Split the argument at commas. */
3699 for (j
= 3; argv
[i
][j
]; j
++)
3700 n_infiles
+= (argv
[i
][j
] == ',');
3702 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3705 fatal ("argument to '-Xlinker' is missing");
3710 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3713 fatal ("argument to '-Xpreprocessor' is missing");
3715 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3717 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3720 fatal ("argument to '-Xassembler' is missing");
3722 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3724 else if (strcmp (argv
[i
], "-l") == 0)
3727 fatal ("argument to '-l' is missing");
3732 else if (strncmp (argv
[i
], "-l", 2) == 0)
3734 else if (strcmp (argv
[i
], "-save-temps") == 0)
3736 save_temps_flag
= 1;
3739 else if (strcmp (argv
[i
], "-combine") == 0)
3744 else if (strcmp (argv
[i
], "-specs") == 0)
3746 struct user_specs
*user
= XNEW (struct user_specs
);
3748 fatal ("argument to '-specs' is missing");
3750 user
->next
= (struct user_specs
*) 0;
3751 user
->filename
= argv
[i
];
3752 if (user_specs_tail
)
3753 user_specs_tail
->next
= user
;
3755 user_specs_head
= user
;
3756 user_specs_tail
= user
;
3758 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3760 struct user_specs
*user
= XNEW (struct user_specs
);
3761 if (strlen (argv
[i
]) == 7)
3762 fatal ("argument to '-specs=' is missing");
3764 user
->next
= (struct user_specs
*) 0;
3765 user
->filename
= argv
[i
] + 7;
3766 if (user_specs_tail
)
3767 user_specs_tail
->next
= user
;
3769 user_specs_head
= user
;
3770 user_specs_tail
= user
;
3772 else if (strcmp (argv
[i
], "-time") == 0)
3774 else if (strcmp (argv
[i
], "-pipe") == 0)
3776 /* -pipe has to go into the switches array as well as
3781 else if (strcmp (argv
[i
], "-###") == 0)
3783 /* This is similar to -v except that there is no execution
3784 of the commands and the echoed arguments are quoted. It
3785 is intended for use in shell scripts to capture the
3786 driver-generated command line. */
3787 verbose_only_flag
++;
3790 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3792 const char *p
= &argv
[i
][1];
3798 if (NULL
== strchr(argv
[i
] + 2, '-'))
3803 fatal ("'-%c' must come at the start of the command line", c
);
3811 if (p
[1] == 0 && i
+ 1 == argc
)
3812 fatal ("argument to '-B' is missing");
3818 len
= strlen (value
);
3820 /* Catch the case where the user has forgotten to append a
3821 directory separator to the path. Note, they may be using
3822 -B to add an executable name prefix, eg "i386-elf-", in
3823 order to distinguish between multiple installations of
3824 GCC in the same directory. Hence we must check to see
3825 if appending a directory separator actually makes a
3826 valid directory name. */
3827 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3828 && is_directory (value
, false))
3830 char *tmp
= XNEWVEC (char, len
+ 2);
3831 strcpy (tmp
, value
);
3832 tmp
[len
] = DIR_SEPARATOR
;
3837 add_prefix (&exec_prefixes
, value
, NULL
,
3838 PREFIX_PRIORITY_B_OPT
, 0, 0);
3839 add_prefix (&startfile_prefixes
, value
, NULL
,
3840 PREFIX_PRIORITY_B_OPT
, 0, 0);
3841 add_prefix (&include_prefixes
, value
, NULL
,
3842 PREFIX_PRIORITY_B_OPT
, 0, 0);
3847 case 'v': /* Print our subcommands and print versions. */
3849 /* If they do anything other than exactly `-v', don't set
3850 verbose_flag; rather, continue on to give the error. */
3868 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3873 /* Forward scan, just in case -S or -c is specified
3880 if (argv
[j
][0] == '-')
3882 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3888 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3889 j
+= skip
- (argv
[j
][2] != 0);
3890 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3897 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3899 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3901 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3908 #ifdef MODIFY_TARGET_NAME
3909 is_modify_target_name
= 0;
3911 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3912 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3914 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3915 + strlen (spec_machine
));
3918 int made_addition
= 0;
3920 is_modify_target_name
= 1;
3921 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3923 if (modify_target
[j
].add_del
== DELETE
3924 && (! strncmp (q
, modify_target
[j
].str
,
3925 strlen (modify_target
[j
].str
))))
3926 p
+= strlen (modify_target
[j
].str
);
3927 else if (modify_target
[j
].add_del
== ADD
3928 && ! made_addition
&& *p
== '-')
3930 for (r
= modify_target
[j
].str
; *r
!= 0; )
3938 spec_machine
= new_name
;
3941 if (is_modify_target_name
)
3947 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3948 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3949 else if (WORD_SWITCH_TAKES_ARG (p
))
3950 i
+= WORD_SWITCH_TAKES_ARG (p
);
3960 if (save_temps_flag
&& use_pipes
)
3962 /* -save-temps overrides -pipe, so that temp files are produced */
3963 if (save_temps_flag
)
3964 error ("warning: -pipe ignored because -save-temps specified");
3968 /* Set up the search paths. We add directories that we expect to
3969 contain GNU Toolchain components before directories specified by
3970 the machine description so that we will find GNU components (like
3971 the GNU assembler) before those of the host system. */
3973 /* If we don't know where the toolchain has been installed, use the
3974 configured-in locations. */
3975 if (!gcc_exec_prefix
)
3978 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3979 PREFIX_PRIORITY_LAST
, 1, 0);
3980 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3981 PREFIX_PRIORITY_LAST
, 2, 0);
3982 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3983 PREFIX_PRIORITY_LAST
, 2, 0);
3985 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3986 PREFIX_PRIORITY_LAST
, 1, 0);
3989 /* If not cross-compiling, search well-known system locations. */
3990 if (*cross_compile
== '0')
3993 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3994 PREFIX_PRIORITY_LAST
, 2, 0);
3995 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3996 PREFIX_PRIORITY_LAST
, 2, 0);
3998 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3999 PREFIX_PRIORITY_LAST
, 1, 0);
4002 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4003 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4004 dir_separator_str
, NULL
);
4006 /* Look for tools relative to the location from which the driver is
4007 running, or, if that is not available, the configured prefix. */
4009 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4010 spec_machine
, dir_separator_str
,
4011 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4013 add_prefix (&exec_prefixes
,
4014 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4015 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4016 add_prefix (&startfile_prefixes
,
4017 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4018 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4020 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4021 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4022 then consider it to relocate with the rest of the GCC installation
4023 if GCC_EXEC_PREFIX is set.
4024 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4025 if (target_system_root
&& gcc_exec_prefix
)
4027 char *tmp_prefix
= make_relative_prefix (argv
[0],
4028 standard_bindir_prefix
,
4029 target_system_root
);
4030 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4032 target_system_root
= tmp_prefix
;
4033 target_system_root_changed
= 1;
4038 /* More prefixes are enabled in main, after we read the specs file
4039 and determine whether this is cross-compilation or not. */
4041 /* Then create the space for the vectors and scan again. */
4043 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4044 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4047 last_language_n_infiles
= -1;
4049 /* This, time, copy the text of each switch and store a pointer
4050 to the copy in the vector of switches.
4051 Store all the infiles in their vector. */
4053 for (i
= 1; i
< argc
; i
++)
4055 /* Just skip the switches that were handled by the preceding loop. */
4056 #ifdef MODIFY_TARGET_NAME
4057 is_modify_target_name
= 0;
4059 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4060 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4061 is_modify_target_name
= 1;
4063 if (is_modify_target_name
)
4067 if (! strncmp (argv
[i
], "-Wa,", 4))
4069 else if (! strncmp (argv
[i
], "-Wp,", 4))
4071 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4073 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4075 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4077 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4079 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4081 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4083 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4085 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4087 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4089 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4091 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4092 target_system_root_changed
= 1;
4094 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4096 /* Compensate for the +e options to the C++ front-end;
4097 they're there simply for cfront call-compatibility. We do
4098 some magic in default_compilers to pass them down properly.
4099 Note we deliberately start at the `+' here, to avoid passing
4100 -e0 or -e1 down into the linker. */
4101 switches
[n_switches
].part1
= &argv
[i
][0];
4102 switches
[n_switches
].args
= 0;
4103 switches
[n_switches
].live_cond
= SWITCH_OK
;
4104 switches
[n_switches
].validated
= 0;
4107 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4110 /* Split the argument at commas. */
4112 for (j
= 4; argv
[i
][j
]; j
++)
4113 if (argv
[i
][j
] == ',')
4115 infiles
[n_infiles
].language
= "*";
4116 infiles
[n_infiles
++].name
4117 = save_string (argv
[i
] + prev
, j
- prev
);
4120 /* Record the part after the last comma. */
4121 infiles
[n_infiles
].language
= "*";
4122 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4124 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4126 infiles
[n_infiles
].language
= "*";
4127 infiles
[n_infiles
++].name
= argv
[++i
];
4129 /* Xassembler and Xpreprocessor were already handled in the first argv
4130 scan, so all we need to do here is ignore them and their argument. */
4131 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4133 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4135 else if (strcmp (argv
[i
], "-l") == 0)
4136 { /* POSIX allows separation of -l and the lib arg;
4137 canonicalize by concatenating -l with its arg */
4138 infiles
[n_infiles
].language
= "*";
4139 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4141 else if (strncmp (argv
[i
], "-l", 2) == 0)
4143 infiles
[n_infiles
].language
= "*";
4144 infiles
[n_infiles
++].name
= argv
[i
];
4146 else if (strcmp (argv
[i
], "-specs") == 0)
4148 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4150 else if (strcmp (argv
[i
], "-time") == 0)
4152 else if (strcmp (argv
[i
], "-###") == 0)
4154 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4156 const char *p
= &argv
[i
][1];
4161 if (p
[1] == 0 && i
+ 1 == argc
)
4162 fatal ("argument to '-x' is missing");
4164 spec_lang
= argv
[++i
];
4167 if (! strcmp (spec_lang
, "none"))
4168 /* Suppress the warning if -xnone comes after the last input
4169 file, because alternate command interfaces like g++ might
4170 find it useful to place -xnone after each input file. */
4173 last_language_n_infiles
= n_infiles
;
4176 switches
[n_switches
].part1
= p
;
4177 /* Deal with option arguments in separate argv elements. */
4178 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4179 || WORD_SWITCH_TAKES_ARG (p
))
4182 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4186 /* Count only the option arguments in separate argv elements. */
4187 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4189 if (i
+ n_args
>= argc
)
4190 fatal ("argument to '-%s' is missing", p
);
4191 switches
[n_switches
].args
4192 = XNEWVEC (const char *, n_args
+ 1);
4194 switches
[n_switches
].args
[j
++] = argv
[++i
];
4195 /* Null-terminate the vector. */
4196 switches
[n_switches
].args
[j
] = 0;
4198 else if (strchr (switches_need_spaces
, c
))
4200 /* On some systems, ld cannot handle some options without
4201 a space. So split the option from its argument. */
4202 char *part1
= XNEWVEC (char, 2);
4206 switches
[n_switches
].part1
= part1
;
4207 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4208 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4209 switches
[n_switches
].args
[1] = 0;
4212 switches
[n_switches
].args
= 0;
4214 switches
[n_switches
].live_cond
= SWITCH_OK
;
4215 switches
[n_switches
].validated
= 0;
4216 switches
[n_switches
].ordering
= 0;
4217 /* These are always valid, since gcc.c itself understands the
4218 first four and gfortranspec.c understands -static-libgfortran. */
4219 if (!strcmp (p
, "save-temps")
4220 || !strcmp (p
, "static-libgcc")
4221 || !strcmp (p
, "shared-libgcc")
4222 || !strcmp (p
, "pipe")
4223 || !strcmp (p
, "static-libgfortran"))
4224 switches
[n_switches
].validated
= 1;
4227 char ch
= switches
[n_switches
].part1
[0];
4229 switches
[n_switches
].validated
= 1;
4235 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4236 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4239 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4241 perror_with_name (argv
[i
]);
4246 infiles
[n_infiles
].language
= spec_lang
;
4247 infiles
[n_infiles
++].name
= argv
[i
];
4252 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4253 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4255 /* Ensure we only invoke each subprocess once. */
4256 if (print_subprocess_help
|| print_help_list
)
4260 /* Create a dummy input file, so that we can pass
4261 the help option on to the various sub-processes. */
4262 infiles
[0].language
= "c";
4263 infiles
[0].name
= "help-dummy";
4266 switches
[n_switches
].part1
= 0;
4267 infiles
[n_infiles
].name
= 0;
4270 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4271 and place that in the environment. */
4274 set_collect_gcc_options (void)
4279 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4281 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4282 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4285 for (i
= 0; (int) i
< n_switches
; i
++)
4287 const char *const *args
;
4290 obstack_grow (&collect_obstack
, " ", 1);
4294 /* Ignore elided switches. */
4295 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4298 obstack_grow (&collect_obstack
, "'-", 2);
4299 q
= switches
[i
].part1
;
4300 while ((p
= strchr (q
, '\'')))
4302 obstack_grow (&collect_obstack
, q
, p
- q
);
4303 obstack_grow (&collect_obstack
, "'\\''", 4);
4306 obstack_grow (&collect_obstack
, q
, strlen (q
));
4307 obstack_grow (&collect_obstack
, "'", 1);
4309 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4311 obstack_grow (&collect_obstack
, " '", 2);
4313 while ((p
= strchr (q
, '\'')))
4315 obstack_grow (&collect_obstack
, q
, p
- q
);
4316 obstack_grow (&collect_obstack
, "'\\''", 4);
4319 obstack_grow (&collect_obstack
, q
, strlen (q
));
4320 obstack_grow (&collect_obstack
, "'", 1);
4323 obstack_grow (&collect_obstack
, "\0", 1);
4324 putenv (XOBFINISH (&collect_obstack
, char *));
4327 /* Process a spec string, accumulating and running commands. */
4329 /* These variables describe the input file name.
4330 input_file_number is the index on outfiles of this file,
4331 so that the output file name can be stored for later use by %o.
4332 input_basename is the start of the part of the input file
4333 sans all directory names, and basename_length is the number
4334 of characters starting there excluding the suffix .c or whatever. */
4336 static const char *input_filename
;
4337 static int input_file_number
;
4338 size_t input_filename_length
;
4339 static int basename_length
;
4340 static int suffixed_basename_length
;
4341 static const char *input_basename
;
4342 static const char *input_suffix
;
4343 #ifndef HOST_LACKS_INODE_NUMBERS
4344 static struct stat input_stat
;
4346 static int input_stat_set
;
4348 /* The compiler used to process the current input file. */
4349 static struct compiler
*input_file_compiler
;
4351 /* These are variables used within do_spec and do_spec_1. */
4353 /* Nonzero if an arg has been started and not yet terminated
4354 (with space, tab or newline). */
4355 static int arg_going
;
4357 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4358 is a temporary file name. */
4359 static int delete_this_arg
;
4361 /* Nonzero means %w has been seen; the next arg to be terminated
4362 is the output file name of this compilation. */
4363 static int this_is_output_file
;
4365 /* Nonzero means %s has been seen; the next arg to be terminated
4366 is the name of a library file and we should try the standard
4367 search dirs for it. */
4368 static int this_is_library_file
;
4370 /* Nonzero means that the input of this command is coming from a pipe. */
4371 static int input_from_pipe
;
4373 /* Nonnull means substitute this for any suffix when outputting a switches
4375 static const char *suffix_subst
;
4377 /* Process the spec SPEC and run the commands specified therein.
4378 Returns 0 if the spec is successfully processed; -1 if failed. */
4381 do_spec (const char *spec
)
4385 value
= do_spec_2 (spec
);
4387 /* Force out any unfinished command.
4388 If -pipe, this forces out the last command if it ended in `|'. */
4391 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4394 set_collect_gcc_options ();
4396 if (argbuf_index
> 0)
4404 do_spec_2 (const char *spec
)
4411 delete_this_arg
= 0;
4412 this_is_output_file
= 0;
4413 this_is_library_file
= 0;
4414 input_from_pipe
= 0;
4415 suffix_subst
= NULL
;
4417 result
= do_spec_1 (spec
, 0, NULL
);
4419 /* End any pending argument. */
4422 obstack_1grow (&obstack
, 0);
4423 string
= XOBFINISH (&obstack
, const char *);
4424 if (this_is_library_file
)
4425 string
= find_file (string
);
4426 store_arg (string
, delete_this_arg
, this_is_output_file
);
4427 if (this_is_output_file
)
4428 outfiles
[input_file_number
] = string
;
4436 /* Process the given spec string and add any new options to the end
4437 of the switches/n_switches array. */
4440 do_option_spec (const char *name
, const char *spec
)
4442 unsigned int i
, value_count
, value_len
;
4443 const char *p
, *q
, *value
;
4444 char *tmp_spec
, *tmp_spec_p
;
4446 if (configure_default_options
[0].name
== NULL
)
4449 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4450 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4452 if (i
== ARRAY_SIZE (configure_default_options
))
4455 value
= configure_default_options
[i
].value
;
4456 value_len
= strlen (value
);
4458 /* Compute the size of the final spec. */
4461 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4467 /* Replace each %(VALUE) by the specified value. */
4468 tmp_spec
= alloca (strlen (spec
) + 1
4469 + value_count
* (value_len
- strlen ("%(VALUE)")));
4470 tmp_spec_p
= tmp_spec
;
4472 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4474 memcpy (tmp_spec_p
, q
, p
- q
);
4475 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4476 memcpy (tmp_spec_p
, value
, value_len
);
4477 tmp_spec_p
+= value_len
;
4478 q
= p
+ strlen ("%(VALUE)");
4480 strcpy (tmp_spec_p
, q
);
4482 do_self_spec (tmp_spec
);
4485 /* Process the given spec string and add any new options to the end
4486 of the switches/n_switches array. */
4489 do_self_spec (const char *spec
)
4492 do_spec_1 (" ", 0, NULL
);
4494 if (argbuf_index
> 0)
4499 n_switches
+= argbuf_index
;
4500 switches
= xrealloc (switches
,
4501 sizeof (struct switchstr
) * (n_switches
+ 1));
4503 switches
[n_switches
] = switches
[first
];
4504 for (i
= 0; i
< argbuf_index
; i
++)
4506 struct switchstr
*sw
;
4508 /* Each switch should start with '-'. */
4509 if (argbuf
[i
][0] != '-')
4510 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4512 sw
= &switches
[i
+ first
];
4513 sw
->part1
= &argbuf
[i
][1];
4515 sw
->live_cond
= SWITCH_OK
;
4522 /* Callback for processing %D and %I specs. */
4524 struct spec_path_info
{
4529 bool separate_options
;
4533 spec_path (char *path
, void *data
)
4535 struct spec_path_info
*info
= data
;
4539 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4542 if (info
->append_len
!= 0)
4544 len
= strlen (path
);
4545 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4548 if (!is_directory (path
, true))
4551 do_spec_1 (info
->option
, 1, NULL
);
4552 if (info
->separate_options
)
4553 do_spec_1 (" ", 0, NULL
);
4555 if (info
->append_len
== 0)
4557 len
= strlen (path
);
4558 save
= path
[len
- 1];
4559 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4560 path
[len
- 1] = '\0';
4563 do_spec_1 (path
, 1, NULL
);
4564 do_spec_1 (" ", 0, NULL
);
4566 /* Must not damage the original path. */
4567 if (info
->append_len
== 0)
4568 path
[len
- 1] = save
;
4573 /* Process the sub-spec SPEC as a portion of a larger spec.
4574 This is like processing a whole spec except that we do
4575 not initialize at the beginning and we do not supply a
4576 newline by default at the end.
4577 INSWITCH nonzero means don't process %-sequences in SPEC;
4578 in this case, % is treated as an ordinary character.
4579 This is used while substituting switches.
4580 INSWITCH nonzero also causes SPC not to terminate an argument.
4582 Value is zero unless a line was finished
4583 and the command on that line reported an error. */
4586 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4588 const char *p
= spec
;
4595 /* If substituting a switch, treat all chars like letters.
4596 Otherwise, NL, SPC, TAB and % are special. */
4597 switch (inswitch
? 'a' : c
)
4600 /* End of line: finish any pending argument,
4601 then run the pending command if one has been started. */
4604 obstack_1grow (&obstack
, 0);
4605 string
= XOBFINISH (&obstack
, const char *);
4606 if (this_is_library_file
)
4607 string
= find_file (string
);
4608 store_arg (string
, delete_this_arg
, this_is_output_file
);
4609 if (this_is_output_file
)
4610 outfiles
[input_file_number
] = string
;
4614 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4616 /* A `|' before the newline means use a pipe here,
4617 but only if -pipe was specified.
4618 Otherwise, execute now and don't pass the `|' as an arg. */
4621 input_from_pipe
= 1;
4628 set_collect_gcc_options ();
4630 if (argbuf_index
> 0)
4636 /* Reinitialize for a new command, and for a new argument. */
4639 delete_this_arg
= 0;
4640 this_is_output_file
= 0;
4641 this_is_library_file
= 0;
4642 input_from_pipe
= 0;
4646 /* End any pending argument. */
4649 obstack_1grow (&obstack
, 0);
4650 string
= XOBFINISH (&obstack
, const char *);
4651 if (this_is_library_file
)
4652 string
= find_file (string
);
4653 store_arg (string
, delete_this_arg
, this_is_output_file
);
4654 if (this_is_output_file
)
4655 outfiles
[input_file_number
] = string
;
4659 obstack_1grow (&obstack
, c
);
4665 /* Space or tab ends an argument if one is pending. */
4668 obstack_1grow (&obstack
, 0);
4669 string
= XOBFINISH (&obstack
, const char *);
4670 if (this_is_library_file
)
4671 string
= find_file (string
);
4672 store_arg (string
, delete_this_arg
, this_is_output_file
);
4673 if (this_is_output_file
)
4674 outfiles
[input_file_number
] = string
;
4676 /* Reinitialize for a new argument. */
4678 delete_this_arg
= 0;
4679 this_is_output_file
= 0;
4680 this_is_library_file
= 0;
4687 fatal ("spec '%s' invalid", spec
);
4690 obstack_grow (&obstack
, input_basename
, basename_length
);
4695 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4700 delete_this_arg
= 2;
4703 /* Dump out the directories specified with LIBRARY_PATH,
4704 followed by the absolute directories
4705 that we search for startfiles. */
4708 struct spec_path_info info
;
4711 info
.append_len
= 0;
4712 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4713 /* Used on systems which record the specified -L dirs
4714 and use them to search for dynamic linking.
4715 Relative directories always come from -B,
4716 and it is better not to use them for searching
4717 at run time. In particular, stage1 loses. */
4718 info
.omit_relative
= true;
4720 info
.omit_relative
= false;
4722 info
.separate_options
= false;
4724 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4729 /* %efoo means report an error with `foo' as error message
4730 and don't execute any more commands for this file. */
4734 while (*p
!= 0 && *p
!= '\n')
4736 buf
= alloca (p
- q
+ 1);
4737 strncpy (buf
, q
, p
- q
);
4744 /* %nfoo means report a notice with `foo' on stderr. */
4748 while (*p
!= 0 && *p
!= '\n')
4750 buf
= alloca (p
- q
+ 1);
4751 strncpy (buf
, q
, p
- q
);
4753 notice ("%s\n", buf
);
4763 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4764 defined, and it is not a directory, and it is
4765 writable, use it. Otherwise, treat this like any
4766 other temporary file. */
4768 if ((!save_temps_flag
)
4769 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4770 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4772 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4773 strlen (HOST_BIT_BUCKET
));
4774 delete_this_arg
= 0;
4779 goto create_temp_file
;
4783 obstack_1grow (&obstack
, '-');
4784 delete_this_arg
= 0;
4787 /* consume suffix */
4788 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4790 if (p
[0] == '%' && p
[1] == 'O')
4795 goto create_temp_file
;
4799 /* consume suffix */
4800 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4802 if (p
[0] == '%' && p
[1] == 'O')
4807 goto create_temp_file
;
4813 struct temp_name
*t
;
4815 const char *suffix
= p
;
4816 char *saved_suffix
= NULL
;
4818 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4820 suffix_length
= p
- suffix
;
4821 if (p
[0] == '%' && p
[1] == 'O')
4824 /* We don't support extra suffix characters after %O. */
4825 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4826 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4827 if (suffix_length
== 0)
4828 suffix
= TARGET_OBJECT_SUFFIX
;
4832 = XNEWVEC (char, suffix_length
4833 + strlen (TARGET_OBJECT_SUFFIX
));
4834 strncpy (saved_suffix
, suffix
, suffix_length
);
4835 strcpy (saved_suffix
+ suffix_length
,
4836 TARGET_OBJECT_SUFFIX
);
4838 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4841 /* If the input_filename has the same suffix specified
4842 for the %g, %u, or %U, and -save-temps is specified,
4843 we could end up using that file as an intermediate
4844 thus clobbering the user's source file (.e.g.,
4845 gcc -save-temps foo.s would clobber foo.s with the
4846 output of cpp0). So check for this condition and
4847 generate a temp file as the intermediate. */
4849 if (save_temps_flag
)
4851 temp_filename_length
= basename_length
+ suffix_length
;
4852 temp_filename
= alloca (temp_filename_length
+ 1);
4853 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4854 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4856 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4857 if (strcmp (temp_filename
, input_filename
) != 0)
4859 #ifndef HOST_LACKS_INODE_NUMBERS
4860 struct stat st_temp
;
4862 /* Note, set_input() resets input_stat_set to 0. */
4863 if (input_stat_set
== 0)
4865 input_stat_set
= stat (input_filename
, &input_stat
);
4866 if (input_stat_set
>= 0)
4870 /* If we have the stat for the input_filename
4871 and we can do the stat for the temp_filename
4872 then the they could still refer to the same
4873 file if st_dev/st_ino's are the same. */
4874 if (input_stat_set
!= 1
4875 || stat (temp_filename
, &st_temp
) < 0
4876 || input_stat
.st_dev
!= st_temp
.st_dev
4877 || input_stat
.st_ino
!= st_temp
.st_ino
)
4879 /* Just compare canonical pathnames. */
4880 char* input_realname
= lrealpath (input_filename
);
4881 char* temp_realname
= lrealpath (temp_filename
);
4882 bool files_differ
= strcmp (input_realname
, temp_realname
);
4883 free (input_realname
);
4884 free (temp_realname
);
4888 temp_filename
= save_string (temp_filename
,
4889 temp_filename_length
+ 1);
4890 obstack_grow (&obstack
, temp_filename
,
4891 temp_filename_length
);
4893 delete_this_arg
= 0;
4899 /* See if we already have an association of %g/%u/%U and
4901 for (t
= temp_names
; t
; t
= t
->next
)
4902 if (t
->length
== suffix_length
4903 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4904 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4907 /* Make a new association if needed. %u and %j
4909 if (t
== 0 || c
== 'u' || c
== 'j')
4913 t
= xmalloc (sizeof (struct temp_name
));
4914 t
->next
= temp_names
;
4917 t
->length
= suffix_length
;
4920 t
->suffix
= saved_suffix
;
4921 saved_suffix
= NULL
;
4924 t
->suffix
= save_string (suffix
, suffix_length
);
4925 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4926 temp_filename
= make_temp_file (t
->suffix
);
4927 temp_filename_length
= strlen (temp_filename
);
4928 t
->filename
= temp_filename
;
4929 t
->filename_length
= temp_filename_length
;
4933 free (saved_suffix
);
4935 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4936 delete_this_arg
= 1;
4944 for (i
= 0; (int) i
< n_infiles
; i
++)
4945 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4946 if (infiles
[i
].incompiler
== input_file_compiler
)
4948 store_arg (infiles
[i
].name
, 0, 0);
4949 infiles
[i
].compiled
= true;
4954 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4961 struct spec_path_info info
;
4965 do_spec_1 ("-imultilib", 1, NULL
);
4966 /* Make this a separate argument. */
4967 do_spec_1 (" ", 0, NULL
);
4968 do_spec_1 (multilib_dir
, 1, NULL
);
4969 do_spec_1 (" ", 0, NULL
);
4972 if (gcc_exec_prefix
)
4974 do_spec_1 ("-iprefix", 1, NULL
);
4975 /* Make this a separate argument. */
4976 do_spec_1 (" ", 0, NULL
);
4977 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4978 do_spec_1 (" ", 0, NULL
);
4981 if (target_system_root_changed
||
4982 (target_system_root
&& target_sysroot_hdrs_suffix
))
4984 do_spec_1 ("-isysroot", 1, NULL
);
4985 /* Make this a separate argument. */
4986 do_spec_1 (" ", 0, NULL
);
4987 do_spec_1 (target_system_root
, 1, NULL
);
4988 if (target_sysroot_hdrs_suffix
)
4989 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4990 do_spec_1 (" ", 0, NULL
);
4993 info
.option
= "-isystem";
4994 info
.append
= "include";
4995 info
.append_len
= strlen (info
.append
);
4996 info
.omit_relative
= false;
4997 info
.separate_options
= true;
4999 for_each_path (&include_prefixes
, false, info
.append_len
,
5002 info
.append
= "include-fixed";
5003 if (*sysroot_hdrs_suffix_spec
)
5004 info
.append
= concat (info
.append
, dir_separator_str
,
5005 multilib_dir
, NULL
);
5006 info
.append_len
= strlen (info
.append
);
5007 for_each_path (&include_prefixes
, false, info
.append_len
,
5014 int max
= n_infiles
;
5015 max
+= lang_specific_extra_outfiles
;
5017 if (HAVE_GNU_LD
&& at_file_supplied
)
5019 /* We are going to expand `%o' to `@FILE', where FILE
5020 is a newly-created temporary filename. The filenames
5021 that would usually be expanded in place of %o will be
5022 written to the temporary file. */
5024 char *temp_file
= make_temp_file ("");
5027 int n_files
, j
, status
;
5030 at_argument
= concat ("@", temp_file
, NULL
);
5031 store_arg (at_argument
, 0, 0);
5033 /* Convert OUTFILES into a form suitable for writeargv. */
5035 /* Determine how many are non-NULL. */
5036 for (n_files
= 0, i
= 0; i
< max
; i
++)
5037 n_files
+= outfiles
[i
] != NULL
;
5039 argv
= alloca (sizeof (char *) * (n_files
+ 1));
5041 /* Copy the strings over. */
5042 for (i
= 0, j
= 0; i
< max
; i
++)
5045 argv
[j
] = (char *) outfiles
[i
];
5050 f
= fopen (temp_file
, "w");
5053 fatal ("could not open temporary response file %s",
5056 status
= writeargv (argv
, f
);
5059 fatal ("could not write to temporary response file %s",
5062 status
= fclose (f
);
5065 fatal ("could not close temporary response file %s",
5068 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5071 for (i
= 0; i
< max
; i
++)
5073 store_arg (outfiles
[i
], 0, 0);
5078 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5083 this_is_library_file
= 1;
5087 outfiles
[input_file_number
] = NULL
;
5091 this_is_output_file
= 1;
5096 int cur_index
= argbuf_index
;
5097 /* Handle the {...} following the %W. */
5099 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5100 p
= handle_braces (p
+ 1);
5103 /* End any pending argument. */
5106 obstack_1grow (&obstack
, 0);
5107 string
= XOBFINISH (&obstack
, const char *);
5108 if (this_is_library_file
)
5109 string
= find_file (string
);
5110 store_arg (string
, delete_this_arg
, this_is_output_file
);
5111 if (this_is_output_file
)
5112 outfiles
[input_file_number
] = string
;
5115 /* If any args were output, mark the last one for deletion
5117 if (argbuf_index
!= cur_index
)
5118 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5122 /* %x{OPTION} records OPTION for %X to output. */
5128 /* Skip past the option value and make a copy. */
5130 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5133 string
= save_string (p1
+ 1, p
- p1
- 2);
5135 /* See if we already recorded this option. */
5136 for (i
= 0; i
< n_linker_options
; i
++)
5137 if (! strcmp (string
, linker_options
[i
]))
5143 /* This option is new; add it. */
5144 add_linker_option (string
, strlen (string
));
5148 /* Dump out the options accumulated previously using %x. */
5150 for (i
= 0; i
< n_linker_options
; i
++)
5152 do_spec_1 (linker_options
[i
], 1, NULL
);
5153 /* Make each accumulated option a separate argument. */
5154 do_spec_1 (" ", 0, NULL
);
5158 /* Dump out the options accumulated previously using -Wa,. */
5160 for (i
= 0; i
< n_assembler_options
; i
++)
5162 do_spec_1 (assembler_options
[i
], 1, NULL
);
5163 /* Make each accumulated option a separate argument. */
5164 do_spec_1 (" ", 0, NULL
);
5168 /* Dump out the options accumulated previously using -Wp,. */
5170 for (i
= 0; i
< n_preprocessor_options
; i
++)
5172 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5173 /* Make each accumulated option a separate argument. */
5174 do_spec_1 (" ", 0, NULL
);
5178 /* Here are digits and numbers that just process
5179 a certain constant string as a spec. */
5182 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5188 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5194 value
= do_spec_1 (asm_spec
, 0, NULL
);
5200 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5207 const char *const spec
5208 = (input_file_compiler
->cpp_spec
5209 ? input_file_compiler
->cpp_spec
5211 value
= do_spec_1 (spec
, 0, NULL
);
5218 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5224 value
= do_spec_1 (link_spec
, 0, NULL
);
5230 value
= do_spec_1 (lib_spec
, 0, NULL
);
5236 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5242 /* We assume there is a directory
5243 separator at the end of this string. */
5244 if (target_system_root
)
5246 obstack_grow (&obstack
, target_system_root
,
5247 strlen (target_system_root
));
5248 if (target_sysroot_suffix
)
5249 obstack_grow (&obstack
, target_sysroot_suffix
,
5250 strlen (target_sysroot_suffix
));
5255 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5260 /* Here we define characters other than letters and digits. */
5263 p
= handle_braces (p
);
5269 p
= handle_spec_function (p
);
5275 obstack_1grow (&obstack
, '%');
5282 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5284 suffix_subst
= save_string (p
- 1, len
+ 1);
5289 /* Henceforth ignore the option(s) matching the pattern
5294 int have_wildcard
= 0;
5297 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5300 if (p
[len
-1] == '*')
5303 for (i
= 0; i
< n_switches
; i
++)
5304 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5305 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5307 switches
[i
].live_cond
= SWITCH_IGNORE
;
5308 switches
[i
].validated
= 1;
5316 if (soft_matched_part
)
5318 do_spec_1 (soft_matched_part
, 1, NULL
);
5319 do_spec_1 (" ", 0, NULL
);
5322 /* Catch the case where a spec string contains something like
5323 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5324 hand side of the :. */
5325 error ("spec failure: '%%*' has not been initialized by pattern match");
5328 /* Process a string found as the value of a spec given by name.
5329 This feature allows individual machine descriptions
5330 to add and use their own specs.
5331 %[...] modifies -D options the way %P does;
5332 %(...) uses the spec unmodified. */
5334 error ("warning: use of obsolete %%[ operator in specs");
5337 const char *name
= p
;
5338 struct spec_list
*sl
;
5341 /* The string after the S/P is the name of a spec that is to be
5343 while (*p
&& *p
!= ')' && *p
!= ']')
5346 /* See if it's in the list. */
5347 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5348 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5350 name
= *(sl
->ptr_spec
);
5352 notice ("Processing spec %c%s%c, which is '%s'\n",
5353 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5362 value
= do_spec_1 (name
, 0, NULL
);
5368 char *x
= alloca (strlen (name
) * 2 + 1);
5370 const char *y
= name
;
5373 /* Copy all of NAME into BUF, but put __ after
5374 every -D and at the end of each arg. */
5377 if (! strncmp (y
, "-D", 2))
5388 && (*y
== ' ' || *y
== '\t' || *y
== '='
5389 || *y
== '}' || *y
== 0))
5402 value
= do_spec_1 (buf
, 0, NULL
);
5408 /* Discard the closing paren or bracket. */
5415 error ("spec failure: unrecognized spec option '%c'", c
);
5421 /* Backslash: treat next character as ordinary. */
5426 /* Ordinary character: put it into the current argument. */
5427 obstack_1grow (&obstack
, c
);
5431 /* End of string. If we are processing a spec function, we need to
5432 end any pending argument. */
5433 if (processing_spec_function
&& arg_going
)
5435 obstack_1grow (&obstack
, 0);
5436 string
= XOBFINISH (&obstack
, const char *);
5437 if (this_is_library_file
)
5438 string
= find_file (string
);
5439 store_arg (string
, delete_this_arg
, this_is_output_file
);
5440 if (this_is_output_file
)
5441 outfiles
[input_file_number
] = string
;
5448 /* Look up a spec function. */
5450 static const struct spec_function
*
5451 lookup_spec_function (const char *name
)
5453 const struct spec_function
*sf
;
5455 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5456 if (strcmp (sf
->name
, name
) == 0)
5462 /* Evaluate a spec function. */
5465 eval_spec_function (const char *func
, const char *args
)
5467 const struct spec_function
*sf
;
5468 const char *funcval
;
5470 /* Saved spec processing context. */
5471 int save_argbuf_index
;
5472 int save_argbuf_length
;
5473 const char **save_argbuf
;
5476 int save_delete_this_arg
;
5477 int save_this_is_output_file
;
5478 int save_this_is_library_file
;
5479 int save_input_from_pipe
;
5480 const char *save_suffix_subst
;
5483 sf
= lookup_spec_function (func
);
5485 fatal ("unknown spec function '%s'", func
);
5487 /* Push the spec processing context. */
5488 save_argbuf_index
= argbuf_index
;
5489 save_argbuf_length
= argbuf_length
;
5490 save_argbuf
= argbuf
;
5492 save_arg_going
= arg_going
;
5493 save_delete_this_arg
= delete_this_arg
;
5494 save_this_is_output_file
= this_is_output_file
;
5495 save_this_is_library_file
= this_is_library_file
;
5496 save_input_from_pipe
= input_from_pipe
;
5497 save_suffix_subst
= suffix_subst
;
5499 /* Create a new spec processing context, and build the function
5503 if (do_spec_2 (args
) < 0)
5504 fatal ("error in args to spec function '%s'", func
);
5506 /* argbuf_index is an index for the next argument to be inserted, and
5507 so contains the count of the args already inserted. */
5509 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5511 /* Pop the spec processing context. */
5512 argbuf_index
= save_argbuf_index
;
5513 argbuf_length
= save_argbuf_length
;
5515 argbuf
= save_argbuf
;
5517 arg_going
= save_arg_going
;
5518 delete_this_arg
= save_delete_this_arg
;
5519 this_is_output_file
= save_this_is_output_file
;
5520 this_is_library_file
= save_this_is_library_file
;
5521 input_from_pipe
= save_input_from_pipe
;
5522 suffix_subst
= save_suffix_subst
;
5527 /* Handle a spec function call of the form:
5531 ARGS is processed as a spec in a separate context and split into an
5532 argument vector in the normal fashion. The function returns a string
5533 containing a spec which we then process in the caller's context, or
5534 NULL if no processing is required. */
5537 handle_spec_function (const char *p
)
5540 const char *endp
, *funcval
;
5543 processing_spec_function
++;
5545 /* Get the function name. */
5546 for (endp
= p
; *endp
!= '\0'; endp
++)
5548 if (*endp
== '(') /* ) */
5550 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5551 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5552 fatal ("malformed spec function name");
5554 if (*endp
!= '(') /* ) */
5555 fatal ("no arguments for spec function");
5556 func
= save_string (p
, endp
- p
);
5559 /* Get the arguments. */
5560 for (count
= 0; *endp
!= '\0'; endp
++)
5569 else if (*endp
== '(') /* ) */
5574 fatal ("malformed spec function arguments");
5575 args
= save_string (p
, endp
- p
);
5578 /* p now points to just past the end of the spec function expression. */
5580 funcval
= eval_spec_function (func
, args
);
5581 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5587 processing_spec_function
--;
5592 /* Inline subroutine of handle_braces. Returns true if the current
5593 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5595 input_suffix_matches (const char *atom
, const char *end_atom
)
5597 return (input_suffix
5598 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5599 && input_suffix
[end_atom
- atom
] == '\0');
5602 /* Subroutine of handle_braces. Returns true if the current
5603 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5605 input_spec_matches (const char *atom
, const char *end_atom
)
5607 return (input_file_compiler
5608 && input_file_compiler
->suffix
5609 && input_file_compiler
->suffix
[0] != '\0'
5610 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5612 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5615 /* Subroutine of handle_braces. Returns true if a switch
5616 matching the atom bracketed by ATOM and END_ATOM appeared on the
5619 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5622 int len
= end_atom
- atom
;
5623 int plen
= starred
? len
: -1;
5625 for (i
= 0; i
< n_switches
; i
++)
5626 if (!strncmp (switches
[i
].part1
, atom
, len
)
5627 && (starred
|| switches
[i
].part1
[len
] == '\0')
5628 && check_live_switch (i
, plen
))
5634 /* Inline subroutine of handle_braces. Mark all of the switches which
5635 match ATOM (extends to END_ATOM; STARRED indicates whether there
5636 was a star after the atom) for later processing. */
5638 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5641 int len
= end_atom
- atom
;
5642 int plen
= starred
? len
: -1;
5644 for (i
= 0; i
< n_switches
; i
++)
5645 if (!strncmp (switches
[i
].part1
, atom
, len
)
5646 && (starred
|| switches
[i
].part1
[len
] == '\0')
5647 && check_live_switch (i
, plen
))
5648 switches
[i
].ordering
= 1;
5651 /* Inline subroutine of handle_braces. Process all the currently
5652 marked switches through give_switch, and clear the marks. */
5654 process_marked_switches (void)
5658 for (i
= 0; i
< n_switches
; i
++)
5659 if (switches
[i
].ordering
== 1)
5661 switches
[i
].ordering
= 0;
5666 /* Handle a %{ ... } construct. P points just inside the leading {.
5667 Returns a pointer one past the end of the brace block, or 0
5668 if we call do_spec_1 and that returns -1. */
5671 handle_braces (const char *p
)
5673 const char *atom
, *end_atom
;
5674 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5675 const char *orig
= p
;
5683 bool a_must_be_last
= false;
5684 bool ordered_set
= false;
5685 bool disjunct_set
= false;
5686 bool disj_matched
= false;
5687 bool disj_starred
= true;
5688 bool n_way_choice
= false;
5689 bool n_way_matched
= false;
5691 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5698 /* Scan one "atom" (S in the description above of %{}, possibly
5699 with '!', '.', '@', ',', or '*' modifiers). */
5701 a_is_suffix
= false;
5702 a_is_starred
= false;
5703 a_is_negated
= false;
5704 a_is_spectype
= false;
5708 p
++, a_is_negated
= true;
5712 p
++, a_is_suffix
= true;
5714 p
++, a_is_spectype
= true;
5717 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5718 || *p
== ',' || *p
== '.' || *p
== '@')
5723 p
++, a_is_starred
= 1;
5729 /* Substitute the switch(es) indicated by the current atom. */
5731 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5732 || a_is_spectype
|| atom
== end_atom
)
5735 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5738 process_marked_switches ();
5742 /* Substitute some text if the current atom appears as a switch
5744 disjunct_set
= true;
5748 if (atom
== end_atom
)
5750 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5751 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5755 /* An empty term may appear as the last choice of an
5756 N-way choice set; it means "otherwise". */
5757 a_must_be_last
= true;
5758 disj_matched
= !n_way_matched
;
5759 disj_starred
= false;
5763 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5767 disj_starred
= false;
5769 /* Don't bother testing this atom if we already have a
5771 if (!disj_matched
&& !n_way_matched
)
5774 a_matched
= input_suffix_matches (atom
, end_atom
);
5775 else if (a_is_spectype
)
5776 a_matched
= input_spec_matches (atom
, end_atom
);
5778 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5780 if (a_matched
!= a_is_negated
)
5782 disj_matched
= true;
5784 d_end_atom
= end_atom
;
5791 /* Found the body, that is, the text to substitute if the
5792 current disjunction matches. */
5793 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5794 disj_matched
&& !n_way_matched
);
5798 /* If we have an N-way choice, reset state for the next
5802 n_way_choice
= true;
5803 n_way_matched
|= disj_matched
;
5804 disj_matched
= false;
5805 disj_starred
= true;
5806 d_atom
= d_end_atom
= NULL
;
5815 while (*p
++ != '}');
5820 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5825 /* Subroutine of handle_braces. Scan and process a brace substitution body
5826 (X in the description of %{} syntax). P points one past the colon;
5827 ATOM and END_ATOM bracket the first atom which was found to be true
5828 (present) in the current disjunction; STARRED indicates whether all
5829 the atoms in the current disjunction were starred (for syntax validation);
5830 MATCHED indicates whether the disjunction matched or not, and therefore
5831 whether or not the body is to be processed through do_spec_1 or just
5832 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5836 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5837 int starred
, int matched
)
5839 const char *body
, *end_body
;
5840 unsigned int nesting_level
;
5841 bool have_subst
= false;
5843 /* Locate the closing } or ;, honoring nested braces.
5844 Trim trailing whitespace. */
5853 if (!--nesting_level
)
5856 else if (*p
== ';' && nesting_level
== 1)
5858 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5860 else if (*p
== '\0')
5866 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5869 if (have_subst
&& !starred
)
5874 /* Copy the substitution body to permanent storage and execute it.
5875 If have_subst is false, this is a simple matter of running the
5876 body through do_spec_1... */
5877 char *string
= save_string (body
, end_body
- body
);
5880 if (do_spec_1 (string
, 0, NULL
) < 0)
5885 /* ... but if have_subst is true, we have to process the
5886 body once for each matching switch, with %* set to the
5887 variant part of the switch. */
5888 unsigned int hard_match_len
= end_atom
- atom
;
5891 for (i
= 0; i
< n_switches
; i
++)
5892 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5893 && check_live_switch (i
, hard_match_len
))
5895 if (do_spec_1 (string
, 0,
5896 &switches
[i
].part1
[hard_match_len
]) < 0)
5898 /* Pass any arguments this switch has. */
5900 suffix_subst
= NULL
;
5908 fatal ("braced spec body '%s' is invalid", body
);
5911 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5912 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5913 spec, or -1 if either exact match or %* is used.
5915 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5916 whose value does not begin with "no-" is obsoleted by the same value
5917 with the "no-", similarly for a switch with the "no-" prefix. */
5920 check_live_switch (int switchnum
, int prefix_length
)
5922 const char *name
= switches
[switchnum
].part1
;
5925 /* In the common case of {<at-most-one-letter>*}, a negating
5926 switch would always match, so ignore that case. We will just
5927 send the conflicting switches to the compiler phase. */
5928 if (prefix_length
>= 0 && prefix_length
<= 1)
5931 /* If we already processed this switch and determined if it was
5932 live or not, return our past determination. */
5933 if (switches
[switchnum
].live_cond
!= 0)
5934 return switches
[switchnum
].live_cond
> 0;
5936 /* Now search for duplicate in a manner that depends on the name. */
5940 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5941 if (switches
[i
].part1
[0] == 'O')
5943 switches
[switchnum
].validated
= 1;
5944 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5949 case 'W': case 'f': case 'm':
5950 if (! strncmp (name
+ 1, "no-", 3))
5952 /* We have Xno-YYY, search for XYYY. */
5953 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5954 if (switches
[i
].part1
[0] == name
[0]
5955 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5957 switches
[switchnum
].validated
= 1;
5958 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5964 /* We have XYYY, search for Xno-YYY. */
5965 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5966 if (switches
[i
].part1
[0] == name
[0]
5967 && switches
[i
].part1
[1] == 'n'
5968 && switches
[i
].part1
[2] == 'o'
5969 && switches
[i
].part1
[3] == '-'
5970 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5972 switches
[switchnum
].validated
= 1;
5973 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5980 /* Otherwise the switch is live. */
5981 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5985 /* Pass a switch to the current accumulating command
5986 in the same form that we received it.
5987 SWITCHNUM identifies the switch; it is an index into
5988 the vector of switches gcc received, which is `switches'.
5989 This cannot fail since it never finishes a command line.
5991 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5994 give_switch (int switchnum
, int omit_first_word
)
5996 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5999 if (!omit_first_word
)
6001 do_spec_1 ("-", 0, NULL
);
6002 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6005 if (switches
[switchnum
].args
!= 0)
6008 for (p
= switches
[switchnum
].args
; *p
; p
++)
6010 const char *arg
= *p
;
6012 do_spec_1 (" ", 0, NULL
);
6015 unsigned length
= strlen (arg
);
6018 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6019 if (arg
[length
] == '.')
6021 ((char *)arg
)[length
] = 0;
6025 do_spec_1 (arg
, 1, NULL
);
6027 ((char *)arg
)[length
] = '.';
6028 do_spec_1 (suffix_subst
, 1, NULL
);
6031 do_spec_1 (arg
, 1, NULL
);
6035 do_spec_1 (" ", 0, NULL
);
6036 switches
[switchnum
].validated
= 1;
6039 /* Search for a file named NAME trying various prefixes including the
6040 user's -B prefix and some standard ones.
6041 Return the absolute file name found. If nothing is found, return NAME. */
6044 find_file (const char *name
)
6046 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6047 return newname
? newname
: name
;
6050 /* Determine whether a directory exists. If LINKER, return 0 for
6051 certain fixed names not needed by the linker. */
6054 is_directory (const char *path1
, bool linker
)
6061 /* Ensure the string ends with "/.". The resulting path will be a
6062 directory even if the given path is a symbolic link. */
6063 len1
= strlen (path1
);
6064 path
= alloca (3 + len1
);
6065 memcpy (path
, path1
, len1
);
6067 if (!IS_DIR_SEPARATOR (cp
[-1]))
6068 *cp
++ = DIR_SEPARATOR
;
6072 /* Exclude directories that the linker is known to search. */
6074 && IS_DIR_SEPARATOR (path
[0])
6076 && strncmp (path
+ 1, "lib", 3) == 0)
6078 && strncmp (path
+ 1, "usr", 3) == 0
6079 && IS_DIR_SEPARATOR (path
[4])
6080 && strncmp (path
+ 5, "lib", 3) == 0)))
6083 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6086 /* Set up the various global variables to indicate that we're processing
6087 the input file named FILENAME. */
6090 set_input (const char *filename
)
6094 input_filename
= filename
;
6095 input_filename_length
= strlen (input_filename
);
6097 input_basename
= input_filename
;
6098 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6099 /* Skip drive name so 'x:foo' is handled properly. */
6100 if (input_basename
[1] == ':')
6101 input_basename
+= 2;
6103 for (p
= input_basename
; *p
; p
++)
6104 if (IS_DIR_SEPARATOR (*p
))
6105 input_basename
= p
+ 1;
6107 /* Find a suffix starting with the last period,
6108 and set basename_length to exclude that suffix. */
6109 basename_length
= strlen (input_basename
);
6110 suffixed_basename_length
= basename_length
;
6111 p
= input_basename
+ basename_length
;
6112 while (p
!= input_basename
&& *p
!= '.')
6114 if (*p
== '.' && p
!= input_basename
)
6116 basename_length
= p
- input_basename
;
6117 input_suffix
= p
+ 1;
6122 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6123 we will need to do a stat on the input_filename. The
6124 INPUT_STAT_SET signals that the stat is needed. */
6128 /* On fatal signals, delete all the temporary files. */
6131 fatal_error (int signum
)
6133 signal (signum
, SIG_DFL
);
6134 delete_failure_queue ();
6135 delete_temp_files ();
6136 /* Get the same signal again, this time not handled,
6137 so its normal effect occurs. */
6138 kill (getpid (), signum
);
6141 extern int main (int, char **);
6144 main (int argc
, char **argv
)
6148 int linker_was_run
= 0;
6149 int lang_n_infiles
= 0;
6150 int num_linker_inputs
= 0;
6151 char *explicit_link_files
;
6154 struct user_specs
*uptr
;
6155 char **old_argv
= argv
;
6157 p
= argv
[0] + strlen (argv
[0]);
6158 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6162 xmalloc_set_program_name (programname
);
6164 expandargv (&argc
, &argv
);
6166 /* Determine if any expansions were made. */
6167 if (argv
!= old_argv
)
6168 at_file_supplied
= true;
6170 prune_options (&argc
, &argv
);
6172 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6173 /* Perform host dependent initialization when needed. */
6174 GCC_DRIVER_HOST_INITIALIZATION
;
6177 /* Unlock the stdio streams. */
6178 unlock_std_streams ();
6180 gcc_init_libintl ();
6182 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6183 signal (SIGINT
, fatal_error
);
6185 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6186 signal (SIGHUP
, fatal_error
);
6188 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6189 signal (SIGTERM
, fatal_error
);
6191 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6192 signal (SIGPIPE
, fatal_error
);
6195 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6196 receive the signal. A different setting is inheritable */
6197 signal (SIGCHLD
, SIG_DFL
);
6200 /* Allocate the argument vector. */
6203 obstack_init (&obstack
);
6205 /* Build multilib_select, et. al from the separate lines that make up each
6206 multilib selection. */
6208 const char *const *q
= multilib_raw
;
6211 obstack_init (&multilib_obstack
);
6212 while ((p
= *q
++) != (char *) 0)
6213 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6215 obstack_1grow (&multilib_obstack
, 0);
6216 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6218 q
= multilib_matches_raw
;
6219 while ((p
= *q
++) != (char *) 0)
6220 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6222 obstack_1grow (&multilib_obstack
, 0);
6223 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6225 q
= multilib_exclusions_raw
;
6226 while ((p
= *q
++) != (char *) 0)
6227 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6229 obstack_1grow (&multilib_obstack
, 0);
6230 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6233 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6236 obstack_1grow (&multilib_obstack
, ' ');
6237 obstack_grow (&multilib_obstack
,
6238 multilib_defaults_raw
[i
],
6239 strlen (multilib_defaults_raw
[i
]));
6243 obstack_1grow (&multilib_obstack
, 0);
6244 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6247 /* Set up to remember the pathname of gcc and any options
6248 needed for collect. We use argv[0] instead of programname because
6249 we need the complete pathname. */
6250 obstack_init (&collect_obstack
);
6251 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6252 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6253 putenv (XOBFINISH (&collect_obstack
, char *));
6255 #ifdef INIT_ENVIRONMENT
6256 /* Set up any other necessary machine specific environment variables. */
6257 putenv (INIT_ENVIRONMENT
);
6260 /* Make a table of what switches there are (switches, n_switches).
6261 Make a table of specified input files (infiles, n_infiles).
6262 Decode switches that are handled locally. */
6264 process_command (argc
, (const char **) argv
);
6266 /* Initialize the vector of specs to just the default.
6267 This means one element containing 0s, as a terminator. */
6269 compilers
= xmalloc (sizeof default_compilers
);
6270 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6271 n_compilers
= n_default_compilers
;
6273 /* Read specs from a file if there is one. */
6275 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6276 spec_version
, dir_separator_str
, NULL
);
6277 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6279 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6280 /* Read the specs file unless it is a default one. */
6281 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6282 read_specs (specs_file
, TRUE
);
6286 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6287 for any override of as, ld and libraries. */
6288 specs_file
= alloca (strlen (standard_exec_prefix
)
6289 + strlen (just_machine_suffix
) + sizeof ("specs"));
6291 strcpy (specs_file
, standard_exec_prefix
);
6292 strcat (specs_file
, just_machine_suffix
);
6293 strcat (specs_file
, "specs");
6294 if (access (specs_file
, R_OK
) == 0)
6295 read_specs (specs_file
, TRUE
);
6297 /* Process any configure-time defaults specified for the command line
6298 options, via OPTION_DEFAULT_SPECS. */
6299 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6300 do_option_spec (option_default_specs
[i
].name
,
6301 option_default_specs
[i
].spec
);
6303 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6304 of the command line. */
6306 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6307 do_self_spec (driver_self_specs
[i
]);
6309 /* If not cross-compiling, look for executables in the standard
6311 if (*cross_compile
== '0')
6313 if (*md_exec_prefix
)
6315 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6316 PREFIX_PRIORITY_LAST
, 0, 0);
6320 /* Process sysroot_suffix_spec. */
6321 if (*sysroot_suffix_spec
!= 0
6322 && do_spec_2 (sysroot_suffix_spec
) == 0)
6324 if (argbuf_index
> 1)
6325 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6326 else if (argbuf_index
== 1)
6327 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6330 #ifdef HAVE_LD_SYSROOT
6331 /* Pass the --sysroot option to the linker, if it supports that. If
6332 there is a sysroot_suffix_spec, it has already been processed by
6333 this point, so target_system_root really is the system root we
6335 if (target_system_root
)
6337 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6338 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6339 set_spec ("link", XOBFINISH (&obstack
, const char *));
6343 /* Process sysroot_hdrs_suffix_spec. */
6344 if (*sysroot_hdrs_suffix_spec
!= 0
6345 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6347 if (argbuf_index
> 1)
6348 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6349 else if (argbuf_index
== 1)
6350 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6353 /* Look for startfiles in the standard places. */
6354 if (*startfile_prefix_spec
!= 0
6355 && do_spec_2 (startfile_prefix_spec
) == 0
6356 && do_spec_1 (" ", 0, NULL
) == 0)
6359 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6360 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6361 PREFIX_PRIORITY_LAST
, 0, 1);
6363 /* We should eventually get rid of all these and stick to
6364 startfile_prefix_spec exclusively. */
6365 else if (*cross_compile
== '0' || target_system_root
)
6367 if (*md_startfile_prefix
)
6368 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6369 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6371 if (*md_startfile_prefix_1
)
6372 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6373 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6375 /* If standard_startfile_prefix is relative, base it on
6376 standard_exec_prefix. This lets us move the installed tree
6377 as a unit. If GCC_EXEC_PREFIX is defined, base
6378 standard_startfile_prefix on that as well.
6380 If the prefix is relative, only search it for native compilers;
6381 otherwise we will search a directory containing host libraries. */
6382 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6383 add_sysrooted_prefix (&startfile_prefixes
,
6384 standard_startfile_prefix
, "BINUTILS",
6385 PREFIX_PRIORITY_LAST
, 0, 1);
6386 else if (*cross_compile
== '0')
6388 add_prefix (&startfile_prefixes
,
6389 concat (gcc_exec_prefix
6390 ? gcc_exec_prefix
: standard_exec_prefix
,
6392 standard_startfile_prefix
, NULL
),
6393 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6396 /* Sysrooted prefixes are relocated because target_system_root is
6397 also relocated by gcc_exec_prefix. */
6398 if (*standard_startfile_prefix_1
)
6399 add_sysrooted_prefix (&startfile_prefixes
,
6400 standard_startfile_prefix_1
, "BINUTILS",
6401 PREFIX_PRIORITY_LAST
, 0, 1);
6402 if (*standard_startfile_prefix_2
)
6403 add_sysrooted_prefix (&startfile_prefixes
,
6404 standard_startfile_prefix_2
, "BINUTILS",
6405 PREFIX_PRIORITY_LAST
, 0, 1);
6408 /* Process any user specified specs in the order given on the command
6410 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6412 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6414 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6417 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6418 if (gcc_exec_prefix
)
6419 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6420 spec_version
, dir_separator_str
, NULL
);
6422 /* Now we have the specs.
6423 Set the `valid' bits for switches that match anything in any spec. */
6425 validate_all_switches ();
6427 /* Now that we have the switches and the specs, set
6428 the subdirectory based on the options. */
6429 set_multilib_dir ();
6431 /* Warn about any switches that no pass was interested in. */
6433 for (i
= 0; (int) i
< n_switches
; i
++)
6434 if (! switches
[i
].validated
)
6435 error ("unrecognized option '-%s'", switches
[i
].part1
);
6437 /* Obey some of the options. */
6439 if (print_search_dirs
)
6441 printf (_("install: %s%s\n"),
6442 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6443 gcc_exec_prefix
? "" : machine_suffix
);
6444 printf (_("programs: %s\n"),
6445 build_search_list (&exec_prefixes
, "", false, false));
6446 printf (_("libraries: %s\n"),
6447 build_search_list (&startfile_prefixes
, "", false, true));
6451 if (print_file_name
)
6453 printf ("%s\n", find_file (print_file_name
));
6457 if (print_prog_name
)
6459 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6460 printf ("%s\n", (newname
? newname
: print_prog_name
));
6464 if (print_multi_lib
)
6466 print_multilib_info ();
6470 if (print_multi_directory
)
6472 if (multilib_dir
== NULL
)
6475 printf ("%s\n", multilib_dir
);
6479 if (print_multi_os_directory
)
6481 if (multilib_os_dir
== NULL
)
6484 printf ("%s\n", multilib_os_dir
);
6488 if (print_sysroot_headers_suffix
)
6490 if (*sysroot_hdrs_suffix_spec
)
6492 printf("%s\n", (target_sysroot_hdrs_suffix
6493 ? target_sysroot_hdrs_suffix
6498 /* The error status indicates that only one set of fixed
6499 headers should be built. */
6500 fatal ("not configured with sysroot headers suffix");
6503 if (print_help_list
)
6509 printf (_("\nFor bug reporting instructions, please see:\n"));
6510 printf ("%s.\n", bug_report_url
);
6515 /* We do not exit here. Instead we have created a fake input file
6516 called 'help-dummy' which needs to be compiled, and we pass this
6517 on the various sub-processes, along with the --help switch. */
6525 notice ("Target: %s\n", spec_machine
);
6526 notice ("Configured with: %s\n", configuration_arguments
);
6528 #ifdef THREAD_MODEL_SPEC
6529 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6530 but there's no point in doing all this processing just to get
6531 thread_model back. */
6532 obstack_init (&obstack
);
6533 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6534 obstack_1grow (&obstack
, '\0');
6535 thrmod
= XOBFINISH (&obstack
, const char *);
6537 thrmod
= thread_model
;
6540 notice ("Thread model: %s\n", thrmod
);
6542 /* compiler_version is truncated at the first space when initialized
6543 from version string, so truncate version_string at the first space
6544 before comparing. */
6545 for (n
= 0; version_string
[n
]; n
++)
6546 if (version_string
[n
] == ' ')
6549 if (! strncmp (version_string
, compiler_version
, n
)
6550 && compiler_version
[n
] == 0)
6551 notice ("gcc version %s\n", version_string
);
6553 notice ("gcc driver version %s executing gcc version %s\n",
6554 version_string
, compiler_version
);
6560 if (n_infiles
== added_libraries
)
6561 fatal ("no input files");
6563 /* Make a place to record the compiler output file names
6564 that correspond to the input files. */
6567 i
+= lang_specific_extra_outfiles
;
6568 outfiles
= XCNEWVEC (const char *, i
);
6570 /* Record which files were specified explicitly as link input. */
6572 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6575 combine_inputs
= true;
6577 combine_inputs
= false;
6579 for (i
= 0; (int) i
< n_infiles
; i
++)
6581 const char *name
= infiles
[i
].name
;
6582 struct compiler
*compiler
= lookup_compiler (name
,
6584 infiles
[i
].language
);
6586 if (compiler
&& !(compiler
->combinable
))
6587 combine_inputs
= false;
6589 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6590 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6591 infiles
[i
].incompiler
= compiler
;
6595 input_file_compiler
= compiler
;
6596 infiles
[i
].incompiler
= compiler
;
6600 /* Since there is no compiler for this input file, assume it is a
6602 explicit_link_files
[i
] = 1;
6603 infiles
[i
].incompiler
= NULL
;
6605 infiles
[i
].compiled
= false;
6606 infiles
[i
].preprocessed
= false;
6609 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6610 fatal ("cannot specify -o with -c or -S with multiple files");
6612 if (combine_flag
&& save_temps_flag
)
6614 bool save_combine_inputs
= combine_inputs
;
6615 /* Must do a separate pre-processing pass for C & Objective-C files, to
6616 obtain individual .i files. */
6618 combine_inputs
= false;
6619 for (i
= 0; (int) i
< n_infiles
; i
++)
6621 int this_file_error
= 0;
6623 input_file_number
= i
;
6624 set_input (infiles
[i
].name
);
6625 if (infiles
[i
].incompiler
6626 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6627 input_file_compiler
= infiles
[i
].incompiler
;
6631 if (input_file_compiler
)
6633 if (input_file_compiler
->spec
[0] == '#')
6635 error ("%s: %s compiler not installed on this system",
6636 input_filename
, &input_file_compiler
->spec
[1]);
6637 this_file_error
= 1;
6641 value
= do_spec (input_file_compiler
->spec
);
6642 infiles
[i
].preprocessed
= true;
6643 if (!have_o_argbuf_index
)
6644 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6645 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6646 infiles
[i
].incompiler
6647 = lookup_compiler (infiles
[i
].name
,
6648 strlen (infiles
[i
].name
),
6649 infiles
[i
].language
);
6652 this_file_error
= 1;
6656 if (this_file_error
)
6658 delete_failure_queue ();
6662 clear_failure_queue ();
6664 combine_inputs
= save_combine_inputs
;
6667 for (i
= 0; (int) i
< n_infiles
; i
++)
6669 int this_file_error
= 0;
6671 /* Tell do_spec what to substitute for %i. */
6673 input_file_number
= i
;
6674 set_input (infiles
[i
].name
);
6676 if (infiles
[i
].compiled
)
6679 /* Use the same thing in %o, unless cp->spec says otherwise. */
6681 outfiles
[i
] = input_filename
;
6683 /* Figure out which compiler from the file's suffix. */
6685 if (! combine_inputs
)
6687 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6688 infiles
[i
].language
);
6690 input_file_compiler
= infiles
[i
].incompiler
;
6692 if (input_file_compiler
)
6694 /* Ok, we found an applicable compiler. Run its spec. */
6696 if (input_file_compiler
->spec
[0] == '#')
6698 error ("%s: %s compiler not installed on this system",
6699 input_filename
, &input_file_compiler
->spec
[1]);
6700 this_file_error
= 1;
6704 value
= do_spec (input_file_compiler
->spec
);
6705 infiles
[i
].compiled
= true;
6707 this_file_error
= 1;
6711 /* If this file's name does not contain a recognized suffix,
6712 record it as explicit linker input. */
6715 explicit_link_files
[i
] = 1;
6717 /* Clear the delete-on-failure queue, deleting the files in it
6718 if this compilation failed. */
6720 if (this_file_error
)
6722 delete_failure_queue ();
6725 /* If this compilation succeeded, don't delete those files later. */
6726 clear_failure_queue ();
6729 /* Reset the input file name to the first compile/object file name, for use
6730 with %b in LINK_SPEC. We use the first input file that we can find
6731 a compiler to compile it instead of using infiles.language since for
6732 languages other than C we use aliases that we then lookup later. */
6737 for (i
= 0; i
< n_infiles
; i
++)
6738 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6740 set_input (infiles
[i
].name
);
6745 if (error_count
== 0)
6747 /* Make sure INPUT_FILE_NUMBER points to first available open
6749 input_file_number
= n_infiles
;
6750 if (lang_specific_pre_link ())
6754 /* Determine if there are any linker input files. */
6755 num_linker_inputs
= 0;
6756 for (i
= 0; (int) i
< n_infiles
; i
++)
6757 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6758 num_linker_inputs
++;
6760 /* Run ld to link all the compiler output files. */
6762 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
6764 int tmp
= execution_count
;
6766 /* We'll use ld if we can't find collect2. */
6767 if (! strcmp (linker_name_spec
, "collect2"))
6769 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6771 linker_name_spec
= "ld";
6773 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6775 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6776 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6778 if (print_subprocess_help
== 1)
6780 printf (_("\nLinker options\n==============\n\n"));
6781 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6782 " to the linker.\n\n"));
6785 value
= do_spec (link_command_spec
);
6788 linker_was_run
= (tmp
!= execution_count
);
6791 /* If options said don't run linker,
6792 complain about input files to be given to the linker. */
6794 if (! linker_was_run
&& error_count
== 0)
6795 for (i
= 0; (int) i
< n_infiles
; i
++)
6796 if (explicit_link_files
[i
]
6797 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6798 error ("%s: linker input file unused because linking not done",
6801 /* Delete some or all of the temporary files we made. */
6804 delete_failure_queue ();
6805 delete_temp_files ();
6807 if (print_help_list
)
6809 printf (("\nFor bug reporting instructions, please see:\n"));
6810 printf ("%s\n", bug_report_url
);
6813 return (signal_count
!= 0 ? 2
6814 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6818 /* Find the proper compilation spec for the file name NAME,
6819 whose length is LENGTH. LANGUAGE is the specified language,
6820 or 0 if this file is to be passed to the linker. */
6822 static struct compiler
*
6823 lookup_compiler (const char *name
, size_t length
, const char *language
)
6825 struct compiler
*cp
;
6827 /* If this was specified by the user to be a linker input, indicate that. */
6828 if (language
!= 0 && language
[0] == '*')
6831 /* Otherwise, look for the language, if one is spec'd. */
6834 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6835 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6838 error ("language %s not recognized", language
);
6842 /* Look for a suffix. */
6843 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6845 if (/* The suffix `-' matches only the file name `-'. */
6846 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6847 || (strlen (cp
->suffix
) < length
6848 /* See if the suffix matches the end of NAME. */
6849 && !strcmp (cp
->suffix
,
6850 name
+ length
- strlen (cp
->suffix
))
6855 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6856 /* Look again, but case-insensitively this time. */
6858 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6860 if (/* The suffix `-' matches only the file name `-'. */
6861 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6862 || (strlen (cp
->suffix
) < length
6863 /* See if the suffix matches the end of NAME. */
6864 && ((!strcmp (cp
->suffix
,
6865 name
+ length
- strlen (cp
->suffix
))
6866 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6867 && !strcasecmp (cp
->suffix
,
6868 name
+ length
- strlen (cp
->suffix
)))
6874 if (cp
>= compilers
)
6876 if (cp
->spec
[0] != '@')
6877 /* A non-alias entry: return it. */
6880 /* An alias entry maps a suffix to a language.
6881 Search for the language; pass 0 for NAME and LENGTH
6882 to avoid infinite recursion if language not found. */
6883 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6889 save_string (const char *s
, int len
)
6891 char *result
= XNEWVEC (char, len
+ 1);
6893 memcpy (result
, s
, len
);
6899 pfatal_with_name (const char *name
)
6901 perror_with_name (name
);
6902 delete_temp_files ();
6907 perror_with_name (const char *name
)
6909 error ("%s: %s", name
, xstrerror (errno
));
6912 /* Output an error message and exit. */
6915 fancy_abort (const char *file
, int line
, const char *func
)
6917 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6920 /* Output an error message and exit. */
6923 fatal_ice (const char *cmsgid
, ...)
6927 va_start (ap
, cmsgid
);
6929 fprintf (stderr
, "%s: ", programname
);
6930 vfprintf (stderr
, _(cmsgid
), ap
);
6932 fprintf (stderr
, "\n");
6933 delete_temp_files ();
6934 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
6938 fatal (const char *cmsgid
, ...)
6942 va_start (ap
, cmsgid
);
6944 fprintf (stderr
, "%s: ", programname
);
6945 vfprintf (stderr
, _(cmsgid
), ap
);
6947 fprintf (stderr
, "\n");
6948 delete_temp_files ();
6952 /* The argument is actually c-format, not gcc-internal-format,
6953 but because functions with identical names are used through
6954 the rest of the compiler with gcc-internal-format, we just
6955 need to hope all users of these functions use the common
6956 subset between c-format and gcc-internal-format. */
6959 error (const char *gmsgid
, ...)
6963 va_start (ap
, gmsgid
);
6964 fprintf (stderr
, "%s: ", programname
);
6965 vfprintf (stderr
, _(gmsgid
), ap
);
6968 fprintf (stderr
, "\n");
6972 notice (const char *cmsgid
, ...)
6976 va_start (ap
, cmsgid
);
6977 vfprintf (stderr
, _(cmsgid
), ap
);
6982 validate_switches_from_spec (const char *spec
)
6984 const char *p
= spec
;
6987 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6988 /* We have a switch spec. */
6989 p
= validate_switches (p
+ 1);
6993 validate_all_switches (void)
6995 struct compiler
*comp
;
6996 struct spec_list
*spec
;
6998 for (comp
= compilers
; comp
->spec
; comp
++)
6999 validate_switches_from_spec (comp
->spec
);
7001 /* Look through the linked list of specs read from the specs file. */
7002 for (spec
= specs
; spec
; spec
= spec
->next
)
7003 validate_switches_from_spec (*spec
->ptr_spec
);
7005 validate_switches_from_spec (link_command_spec
);
7008 /* Look at the switch-name that comes after START
7009 and mark as valid all supplied switches that match it. */
7012 validate_switches (const char *start
)
7014 const char *p
= start
;
7018 bool suffix
= false;
7019 bool starred
= false;
7021 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7030 if (*p
== '.' || *p
== ',')
7034 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7035 || *p
== ',' || *p
== '.' || *p
== '@')
7040 starred
= true, p
++;
7046 /* Mark all matching switches as valid. */
7047 for (i
= 0; i
< n_switches
; i
++)
7048 if (!strncmp (switches
[i
].part1
, atom
, len
)
7049 && (starred
|| switches
[i
].part1
[len
] == 0))
7050 switches
[i
].validated
= 1;
7054 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7057 if (*p
&& p
[-1] == ':')
7059 while (*p
&& *p
!= ';' && *p
!= '}')
7064 if (*p
== '{' || *p
== '<')
7065 p
= validate_switches (p
+1);
7066 else if (p
[0] == 'W' && p
[1] == '{')
7067 p
= validate_switches (p
+2);
7074 if (*p
&& p
[-1] == ';')
7088 static struct mdswitchstr
*mdswitches
;
7089 static int n_mdswitches
;
7091 /* Check whether a particular argument was used. The first time we
7092 canonicalize the switches to keep only the ones we care about. */
7095 used_arg (const char *p
, int len
)
7100 const char *replace
;
7105 static struct mswitchstr
*mswitches
;
7106 static int n_mswitches
;
7111 struct mswitchstr
*matches
;
7115 /* Break multilib_matches into the component strings of string
7116 and replacement string. */
7117 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7121 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
7123 q
= multilib_matches
;
7132 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7136 matches
[i
].len
= q
- matches
[i
].str
;
7138 matches
[i
].replace
= ++q
;
7139 while (*q
!= ';' && *q
!= '\0')
7142 goto invalid_matches
;
7145 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7151 /* Now build a list of the replacement string for switches that we care
7152 about. Make sure we allocate at least one entry. This prevents
7153 xmalloc from calling fatal, and prevents us from re-executing this
7156 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7157 for (i
= 0; i
< n_switches
; i
++)
7158 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
7160 int xlen
= strlen (switches
[i
].part1
);
7161 for (j
= 0; j
< cnt
; j
++)
7162 if (xlen
== matches
[j
].len
7163 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7165 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7166 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7167 mswitches
[n_mswitches
].replace
= (char *) 0;
7168 mswitches
[n_mswitches
].rep_len
= 0;
7174 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7175 on the command line nor any options mutually incompatible with
7177 for (i
= 0; i
< n_mdswitches
; i
++)
7181 for (q
= multilib_options
; *q
!= '\0'; q
++)
7187 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7188 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7190 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7197 if (*q
!= ' ' && *q
!= '\0')
7199 while (*r
!= ' ' && *r
!= '\0')
7202 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7205 if (used_arg (r
, q
- r
))
7210 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7211 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7212 mswitches
[n_mswitches
].replace
= (char *) 0;
7213 mswitches
[n_mswitches
].rep_len
= 0;
7226 for (i
= 0; i
< n_mswitches
; i
++)
7227 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7234 default_arg (const char *p
, int len
)
7238 for (i
= 0; i
< n_mdswitches
; i
++)
7239 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7245 /* Work out the subdirectory to use based on the options. The format of
7246 multilib_select is a list of elements. Each element is a subdirectory
7247 name followed by a list of options followed by a semicolon. The format
7248 of multilib_exclusions is the same, but without the preceding
7249 directory. First gcc will check the exclusions, if none of the options
7250 beginning with an exclamation point are present, and all of the other
7251 options are present, then we will ignore this completely. Passing
7252 that, gcc will consider each multilib_select in turn using the same
7253 rules for matching the options. If a match is found, that subdirectory
7257 set_multilib_dir (void)
7260 unsigned int this_path_len
;
7261 const char *this_path
, *this_arg
;
7262 const char *start
, *end
;
7264 int ok
, ndfltok
, first
;
7267 start
= multilib_defaults
;
7268 while (*start
== ' ' || *start
== '\t')
7270 while (*start
!= '\0')
7273 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7275 while (*start
== ' ' || *start
== '\t')
7283 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7284 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7286 while (*start
== ' ' || *start
== '\t')
7292 for (end
= start
+ 1;
7293 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7296 obstack_grow (&multilib_obstack
, start
, end
- start
);
7297 obstack_1grow (&multilib_obstack
, 0);
7298 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7299 mdswitches
[i
++].len
= end
- start
;
7306 p
= multilib_exclusions
;
7309 /* Ignore newlines. */
7316 /* Check the arguments. */
7323 fatal ("multilib exclusions '%s' is invalid",
7324 multilib_exclusions
);
7334 while (*p
!= ' ' && *p
!= ';')
7337 goto invalid_exclusions
;
7341 if (*this_arg
!= '!')
7349 ok
= used_arg (this_arg
, p
- this_arg
);
7364 p
= multilib_select
;
7367 /* Ignore newlines. */
7374 /* Get the initial path. */
7381 fatal ("multilib select '%s' is invalid",
7386 this_path_len
= p
- this_path
;
7388 /* Check the arguments. */
7395 goto invalid_select
;
7404 while (*p
!= ' ' && *p
!= ';')
7407 goto invalid_select
;
7411 if (*this_arg
!= '!')
7419 /* If this is a default argument, we can just ignore it.
7420 This is true even if this_arg begins with '!'. Beginning
7421 with '!' does not mean that this argument is necessarily
7422 inappropriate for this library: it merely means that
7423 there is a more specific library which uses this
7424 argument. If this argument is a default, we need not
7425 consider that more specific library. */
7426 ok
= used_arg (this_arg
, p
- this_arg
);
7433 if (default_arg (this_arg
, p
- this_arg
))
7442 if (this_path_len
!= 1
7443 || this_path
[0] != '.')
7445 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7448 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7449 new_multilib_dir
[this_path_len
] = '\0';
7450 q
= strchr (new_multilib_dir
, ':');
7453 multilib_dir
= new_multilib_dir
;
7460 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7462 while (q
< end
&& *q
!= ':')
7466 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7467 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7468 new_multilib_os_dir
[end
- q
- 1] = '\0';
7469 multilib_os_dir
= new_multilib_os_dir
;
7477 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7478 && strcmp (multilib_os_dir
, ".") == 0)
7480 free ((char *) multilib_os_dir
);
7481 multilib_os_dir
= NULL
;
7483 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7484 multilib_os_dir
= multilib_dir
;
7487 /* Print out the multiple library subdirectory selection
7488 information. This prints out a series of lines. Each line looks
7489 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7490 required. Only the desired options are printed out, the negative
7491 matches. The options are print without a leading dash. There are
7492 no spaces to make it easy to use the information in the shell.
7493 Each subdirectory is printed only once. This assumes the ordering
7494 generated by the genmultilib script. Also, we leave out ones that match
7498 print_multilib_info (void)
7500 const char *p
= multilib_select
;
7501 const char *last_path
= 0, *this_path
;
7503 unsigned int last_path_len
= 0;
7508 /* Ignore newlines. */
7515 /* Get the initial path. */
7522 fatal ("multilib select '%s' is invalid", multilib_select
);
7528 /* When --disable-multilib was used but target defines
7529 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7530 to find multilib_os_dir, so skip them from output. */
7531 if (this_path
[0] == '.' && this_path
[1] == ':')
7534 /* Check for matches with the multilib_exclusions. We don't bother
7535 with the '!' in either list. If any of the exclusion rules match
7536 all of its options with the select rule, we skip it. */
7538 const char *e
= multilib_exclusions
;
7539 const char *this_arg
;
7544 /* Ignore newlines. */
7551 /* Check the arguments. */
7560 fatal ("multilib exclusion '%s' is invalid",
7561 multilib_exclusions
);
7572 while (*e
!= ' ' && *e
!= ';')
7575 goto invalid_exclusion
;
7583 int len
= e
- this_arg
;
7586 goto invalid_select
;
7590 while (*q
!= ' ' && *q
!= ';')
7593 goto invalid_select
;
7597 if (! strncmp (arg
, this_arg
,
7598 (len
< q
- arg
) ? q
- arg
: len
)
7599 || default_arg (this_arg
, e
- this_arg
))
7629 /* If this is a duplicate, skip it. */
7630 skip
= (last_path
!= 0
7631 && (unsigned int) (p
- this_path
) == last_path_len
7632 && ! strncmp (last_path
, this_path
, last_path_len
));
7634 last_path
= this_path
;
7635 last_path_len
= p
- this_path
;
7638 /* If this directory requires any default arguments, we can skip
7639 it. We will already have printed a directory identical to
7640 this one which does not require that default argument. */
7651 goto invalid_select
;
7658 while (*q
!= ' ' && *q
!= ';')
7661 goto invalid_select
;
7666 && default_arg (arg
, q
- arg
))
7681 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7692 goto invalid_select
;
7700 use_arg
= *p
!= '!';
7705 while (*p
!= ' ' && *p
!= ';')
7708 goto invalid_select
;
7720 /* If there are extra options, print them now. */
7721 if (multilib_extra
&& *multilib_extra
)
7723 int print_at
= TRUE
;
7726 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7747 /* getenv built-in spec function.
7749 Returns the value of the environment variable given by its first
7750 argument, concatenated with the second argument. If the
7751 environment variable is not defined, a fatal error is issued. */
7754 getenv_spec_function (int argc
, const char **argv
)
7761 value
= getenv (argv
[0]);
7763 fatal ("environment variable \"%s\" not defined", argv
[0]);
7765 return concat (value
, argv
[1], NULL
);
7768 /* if-exists built-in spec function.
7770 Checks to see if the file specified by the absolute pathname in
7771 ARGS exists. Returns that pathname if found.
7773 The usual use for this function is to check for a library file
7774 (whose name has been expanded with %s). */
7777 if_exists_spec_function (int argc
, const char **argv
)
7779 /* Must have only one argument. */
7780 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7786 /* if-exists-else built-in spec function.
7788 This is like if-exists, but takes an additional argument which
7789 is returned if the first argument does not exist. */
7792 if_exists_else_spec_function (int argc
, const char **argv
)
7794 /* Must have exactly two arguments. */
7798 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7804 /* replace-outfile built-in spec function.
7806 This looks for the first argument in the outfiles array's name and
7807 replaces it with the second argument. */
7810 replace_outfile_spec_function (int argc
, const char **argv
)
7813 /* Must have exactly two arguments. */
7817 for (i
= 0; i
< n_infiles
; i
++)
7819 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7820 outfiles
[i
] = xstrdup (argv
[1]);
7825 /* Given two version numbers, compares the two numbers.
7826 A version number must match the regular expression
7827 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7830 compare_version_strings (const char *v1
, const char *v2
)
7835 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7836 REG_EXTENDED
| REG_NOSUB
) != 0)
7838 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7839 if (rresult
== REG_NOMATCH
)
7840 fatal ("invalid version number `%s'", v1
);
7841 else if (rresult
!= 0)
7843 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7844 if (rresult
== REG_NOMATCH
)
7845 fatal ("invalid version number `%s'", v2
);
7846 else if (rresult
!= 0)
7849 return strverscmp (v1
, v2
);
7853 /* version_compare built-in spec function.
7855 This takes an argument of the following form:
7857 <comparison-op> <arg1> [<arg2>] <switch> <result>
7859 and produces "result" if the comparison evaluates to true,
7860 and nothing if it doesn't.
7862 The supported <comparison-op> values are:
7864 >= true if switch is a later (or same) version than arg1
7866 < true if switch is an earlier version than arg1
7868 >< true if switch is arg1 or later, and earlier than arg2
7869 <> true if switch is earlier than arg1 or is arg2 or later
7871 If the switch is not present, the condition is false unless
7872 the first character of the <comparison-op> is '!'.
7875 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7876 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7879 version_compare_spec_function (int argc
, const char **argv
)
7883 const char *switch_value
= NULL
;
7888 fatal ("too few arguments to %%:version-compare");
7889 if (argv
[0][0] == '\0')
7891 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7893 if (argc
!= nargs
+ 3)
7894 fatal ("too many arguments to %%:version-compare");
7896 switch_len
= strlen (argv
[nargs
+ 1]);
7897 for (i
= 0; i
< n_switches
; i
++)
7898 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7899 && check_live_switch (i
, switch_len
))
7900 switch_value
= switches
[i
].part1
+ switch_len
;
7902 if (switch_value
== NULL
)
7906 comp1
= compare_version_strings (switch_value
, argv
[1]);
7908 comp2
= compare_version_strings (switch_value
, argv
[2]);
7910 comp2
= -1; /* This value unused. */
7913 switch (argv
[0][0] << 8 | argv
[0][1])
7915 case '>' << 8 | '=':
7916 result
= comp1
>= 0;
7918 case '!' << 8 | '<':
7919 result
= comp1
>= 0 || switch_value
== NULL
;
7924 case '!' << 8 | '>':
7925 result
= comp1
< 0 || switch_value
== NULL
;
7927 case '>' << 8 | '<':
7928 result
= comp1
>= 0 && comp2
< 0;
7930 case '<' << 8 | '>':
7931 result
= comp1
< 0 || comp2
>= 0;
7935 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
7940 return argv
[nargs
+ 2];
7943 /* %:include builtin spec function. This differs from %include in that it
7944 can be nested inside a spec, and thus be conditionalized. It takes
7945 one argument, the filename, and looks for it in the startfile path.
7946 The result is always NULL, i.e. an empty expansion. */
7949 include_spec_function (int argc
, const char **argv
)
7956 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, 0);
7957 read_specs (file
? file
: argv
[0], FALSE
);
7962 /* %:print-asm-header spec function. Print a banner to say that the
7963 following output is from the assembler. */
7966 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
7967 const char **argv ATTRIBUTE_UNUSED
)
7969 printf (_("Assembler options\n=================\n\n"));
7970 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));