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 Free Software Foundation,
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
90 /* By default there is no special suffix for target executables. */
91 /* FIXME: when autoconf is fixed, remove the host check - dj */
92 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
93 #define HAVE_TARGET_EXECUTABLE_SUFFIX
96 /* By default there is no special suffix for host executables. */
97 #ifdef HOST_EXECUTABLE_SUFFIX
98 #define HAVE_HOST_EXECUTABLE_SUFFIX
100 #define HOST_EXECUTABLE_SUFFIX ""
103 /* By default, the suffix for target object files is ".o". */
104 #ifdef TARGET_OBJECT_SUFFIX
105 #define HAVE_TARGET_OBJECT_SUFFIX
107 #define TARGET_OBJECT_SUFFIX ".o"
110 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
112 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
113 #ifndef LIBRARY_PATH_ENV
114 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
118 #define kill(p,s) raise(s)
121 /* If a stage of compilation returns an exit status >= 1,
122 compilation of that file ceases. */
124 #define MIN_FATAL_STATUS 1
126 /* Flag set by cppspec.c to 1. */
129 /* Flag saying to pass the greatest exit code returned by a sub-process
130 to the calling program. */
131 static int pass_exit_codes
;
133 /* Definition of string containing the arguments given to configure. */
134 #include "configargs.h"
136 /* Flag saying to print the directories gcc will search through looking for
137 programs, libraries, etc. */
139 static int print_search_dirs
;
141 /* Flag saying to print the full filename of this file
142 as found through our usual search mechanism. */
144 static const char *print_file_name
= NULL
;
146 /* As print_file_name, but search for executable file. */
148 static const char *print_prog_name
= NULL
;
150 /* Flag saying to print the relative path we'd use to
151 find libgcc.a given the current compiler flags. */
153 static int print_multi_directory
;
155 /* Flag saying to print the relative path we'd use to
156 find OS libraries given the current compiler flags. */
158 static int print_multi_os_directory
;
160 /* Flag saying to print the list of subdirectories and
161 compiler flags used to select them in a standard form. */
163 static int print_multi_lib
;
165 /* Flag saying to print the command line options understood by gcc and its
168 static int print_help_list
;
170 /* Flag indicating whether we should print the command and arguments */
172 static int verbose_flag
;
174 /* Flag indicating whether we should ONLY print the command and
175 arguments (like verbose_flag) without executing the command.
176 Displayed arguments are quoted so that the generated command
177 line is suitable for execution. This is intended for use in
178 shell scripts to capture the driver-generated command line. */
179 static int verbose_only_flag
;
181 /* Flag indicating to print target specific command line options. */
183 static int target_help_flag
;
185 /* Flag indicating whether we should report subprocess execution times
186 (if this is supported by the system - see pexecute.c). */
188 static int report_times
;
190 /* Nonzero means place this string before uses of /, so that include
191 and library files can be found in an alternate location. */
193 #ifdef TARGET_SYSTEM_ROOT
194 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
196 static const char *target_system_root
= 0;
199 /* Nonzero means pass the updated target_system_root to the compiler. */
201 static int target_system_root_changed
;
203 /* Nonzero means append this string to target_system_root. */
205 static const char *target_sysroot_suffix
= 0;
207 /* Nonzero means append this string to target_system_root for headers. */
209 static const char *target_sysroot_hdrs_suffix
= 0;
211 /* Nonzero means write "temp" files in source directory
212 and use the source file's name in them, and don't delete them. */
214 static int save_temps_flag
;
216 /* Nonzero means pass multiple source files to the compiler at one time. */
218 static int combine_flag
= 0;
220 /* Nonzero means use pipes to communicate between subprocesses.
221 Overridden by either of the above two flags. */
223 static int use_pipes
;
225 /* The compiler version. */
227 static const char *compiler_version
;
229 /* The target version specified with -V */
231 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
233 /* The target machine specified with -b. */
235 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
237 /* Nonzero if cross-compiling.
238 When -b is used, the value comes from the `specs' file. */
241 static const char *cross_compile
= "1";
243 static const char *cross_compile
= "0";
246 #ifdef MODIFY_TARGET_NAME
248 /* Information on how to alter the target name based on a command-line
249 switch. The only case we support now is simply appending or deleting a
250 string to or from the end of the first part of the configuration name. */
252 static const struct modify_target
254 const char *const sw
;
255 const enum add_del
{ADD
, DELETE
} add_del
;
256 const char *const str
;
258 modify_target
[] = MODIFY_TARGET_NAME
;
261 /* The number of errors that have occurred; the link phase will not be
262 run if this is nonzero. */
263 static int error_count
= 0;
265 /* Greatest exit code of sub-processes that has been encountered up to
267 static int greatest_status
= 1;
269 /* This is the obstack which we use to allocate many strings. */
271 static struct obstack obstack
;
273 /* This is the obstack to build an environment variable to pass to
274 collect2 that describes all of the relevant switches of what to
275 pass the compiler in building the list of pointers to constructors
278 static struct obstack collect_obstack
;
280 /* Forward declaration for prototypes. */
284 static void init_spec (void);
285 static void store_arg (const char *, int, int);
286 static char *load_specs (const char *);
287 static void read_specs (const char *, int);
288 static void set_spec (const char *, const char *);
289 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
290 static char *build_search_list (struct path_prefix
*, const char *, int);
291 static void putenv_from_prefixes (struct path_prefix
*, const char *);
292 static int access_check (const char *, int);
293 static char *find_a_file (struct path_prefix
*, const char *, int, int);
294 static void add_prefix (struct path_prefix
*, const char *, const char *,
296 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
297 const char *, int, int, int);
298 static void translate_options (int *, const char *const **);
299 static char *skip_whitespace (char *);
300 static void delete_if_ordinary (const char *);
301 static void delete_temp_files (void);
302 static void delete_failure_queue (void);
303 static void clear_failure_queue (void);
304 static int check_live_switch (int, int);
305 static const char *handle_braces (const char *);
306 static inline bool input_suffix_matches (const char *, const char *);
307 static inline bool switch_matches (const char *, const char *, int);
308 static inline void mark_matching_switches (const char *, const char *, int);
309 static inline void process_marked_switches (void);
310 static const char *process_brace_body (const char *, const char *, const char *, int, int);
311 static const struct spec_function
*lookup_spec_function (const char *);
312 static const char *eval_spec_function (const char *, const char *);
313 static const char *handle_spec_function (const char *);
314 static char *save_string (const char *, int);
315 static void set_collect_gcc_options (void);
316 static void do_spec_path (struct prefix_list
*, const char *, int, int, int, const char *, const char *);
317 static int do_spec_1 (const char *, int, const char *);
318 static int do_spec_2 (const char *);
319 static void do_option_spec (const char *, const char *);
320 static void do_self_spec (const char *);
321 static const char *find_file (const char *);
322 static int is_directory (const char *, const char *, int);
323 static const char *validate_switches (const char *);
324 static void validate_all_switches (void);
325 static inline void validate_switches_from_spec (const char *);
326 static void give_switch (int, int);
327 static int used_arg (const char *, int);
328 static int default_arg (const char *, int);
329 static void set_multilib_dir (void);
330 static void print_multilib_info (void);
331 static void perror_with_name (const char *);
332 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
333 static void display_help (void);
334 static void add_preprocessor_option (const char *, int);
335 static void add_assembler_option (const char *, int);
336 static void add_linker_option (const char *, int);
337 static void process_command (int, const char **);
338 static int execute (void);
339 static void alloc_args (void);
340 static void clear_args (void);
341 static void fatal_error (int);
342 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
343 static void init_gcc_specs (struct obstack
*, const char *, const char *,
346 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
347 static const char *convert_filename (const char *, int, int);
350 static const char *if_exists_spec_function (int, const char **);
351 static const char *if_exists_else_spec_function (int, const char **);
352 static const char *replace_outfile_spec_function (int, const char **);
353 static const char *version_compare_spec_function (int, const char **);
355 /* The Specs Language
357 Specs are strings containing lines, each of which (if not blank)
358 is made up of a program name, and arguments separated by spaces.
359 The program name must be exact and start from root, since no path
360 is searched and it is unreliable to depend on the current working directory.
361 Redirection of input or output is not supported; the subprograms must
362 accept filenames saying what files to read and write.
364 In addition, the specs can contain %-sequences to substitute variable text
365 or for conditional text. Here is a table of all defined %-sequences.
366 Note that spaces are not generated automatically around the results of
367 expanding these sequences; therefore, you can concatenate them together
368 or with constant text in a single argument.
370 %% substitute one % into the program name or argument.
371 %i substitute the name of the input file being processed.
372 %b substitute the basename of the input file being processed.
373 This is the substring up to (and not including) the last period
374 and not including the directory.
375 %B same as %b, but include the file suffix (text after the last period).
377 substitute a file name that has suffix SUFFIX and is chosen
378 once per compilation, and mark the argument a la %d. To reduce
379 exposure to denial-of-service attacks, the file name is now
380 chosen in a way that is hard to predict even when previously
381 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
382 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
383 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
384 had been pre-processed. Previously, %g was simply substituted
385 with a file name chosen once per compilation, without regard
386 to any appended suffix (which was therefore treated just like
387 ordinary text), making such attacks more likely to succeed.
389 like %g, but if -pipe is in effect, expands simply to "-".
391 like %g, but if -pipe is in effect, expands to nothing. (We have both
392 %| and %m to accommodate differences between system assemblers; see
393 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
395 like %g, but generates a new temporary file name even if %uSUFFIX
398 substitutes the last file name generated with %uSUFFIX, generating a
399 new one if there is no such last file name. In the absence of any
400 %uSUFFIX, this is just like %gSUFFIX, except they don't share
401 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
402 would involve the generation of two distinct file names, one
403 for each `%g.s' and another for each `%U.s'. Previously, %U was
404 simply substituted with a file name chosen for the previous %u,
405 without regard to any appended suffix.
407 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
408 writable, and if save-temps is off; otherwise, substitute the name
409 of a temporary file, just like %u. This temporary file is not
410 meant for communication between processes, but rather as a junk
413 substitutes .SUFFIX for the suffixes of a matched switch's args when
414 it is subsequently output with %*. SUFFIX is terminated by the next
416 %d marks the argument containing or following the %d as a
417 temporary file name, so that that file will be deleted if CC exits
418 successfully. Unlike %g, this contributes no text to the argument.
419 %w marks the argument containing or following the %w as the
420 "output file" of this compilation. This puts the argument
421 into the sequence of arguments that %o will substitute later.
422 %V indicates that this compilation produces no "output file".
424 like %{...} but mark last argument supplied within
425 as a file to be deleted on failure.
426 %o substitutes the names of all the output files, with spaces
427 automatically placed around them. You should write spaces
428 around the %o as well or the results are undefined.
429 %o is for use in the specs for running the linker.
430 Input files whose names have no recognized suffix are not compiled
431 at all, but they are included among the output files, so they will
433 %O substitutes the suffix for object files. Note that this is
434 handled specially when it immediately follows %g, %u, or %U
435 (with or without a suffix argument) because of the need for
436 those to form complete file names. The handling is such that
437 %O is treated exactly as if it had already been substituted,
438 except that %g, %u, and %U do not currently support additional
439 SUFFIX characters following %O as they would following, for
441 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
442 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
443 and -B options) as necessary.
444 %s current argument is the name of a library or startup file of some sort.
445 Search for that file in a standard list of directories
446 and substitute the full name found.
447 %eSTR Print STR as an error message. STR is terminated by a newline.
448 Use this when inconsistent options are detected.
449 %nSTR Print STR as a notice. STR is terminated by a newline.
450 %x{OPTION} Accumulate an option for %X.
451 %X Output the accumulated linker options specified by compilations.
452 %Y Output the accumulated assembler options specified by compilations.
453 %Z Output the accumulated preprocessor options specified by compilations.
454 %a process ASM_SPEC as a spec.
455 This allows config.h to specify part of the spec for running as.
456 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
457 used here. This can be used to run a post-processor after the
458 assembler has done its job.
459 %D Dump out a -L option for each directory in startfile_prefixes.
460 If multilib_dir is set, extra entries are generated with it affixed.
461 %l process LINK_SPEC as a spec.
462 %L process LIB_SPEC as a spec.
463 %G process LIBGCC_SPEC as a spec.
464 %R Output the concatenation of target_system_root and
465 target_sysroot_suffix.
466 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
467 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
468 %C process CPP_SPEC as a spec.
469 %1 process CC1_SPEC as a spec.
470 %2 process CC1PLUS_SPEC as a spec.
471 %* substitute the variable part of a matched option. (See below.)
472 Note that each comma in the substituted string is replaced by
474 %<S remove all occurrences of -S from the command line.
475 Note - this command is position dependent. % commands in the
476 spec string before this one will see -S, % commands in the
477 spec string after this one will not.
478 %<S* remove all occurrences of all switches beginning with -S from the
481 Call the named function FUNCTION, passing it ARGS. ARGS is
482 first processed as a nested spec string, then split into an
483 argument vector in the usual fashion. The function returns
484 a string which is processed as if it had appeared literally
485 as part of the current spec.
486 %{S} substitutes the -S switch, if that switch was given to CC.
487 If that switch was not specified, this substitutes nothing.
488 Here S is a metasyntactic variable.
489 %{S*} substitutes all the switches specified to CC whose names start
490 with -S. This is used for -o, -I, etc; switches that take
491 arguments. CC considers `-o foo' as being one switch whose
492 name starts with `o'. %{o*} would substitute this text,
493 including the space; thus, two arguments would be generated.
494 %{S*&T*} likewise, but preserve order of S and T options (the order
495 of S and T in the spec is not significant). Can be any number
496 of ampersand-separated variables; for each the wild card is
497 optional. Useful for CPP as %{D*&U*&A*}.
499 %{S:X} substitutes X, if the -S switch was given to CC.
500 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
501 %{S*:X} substitutes X if one or more switches whose names start
502 with -S was given to CC. Normally X is substituted only
503 once, no matter how many such switches appeared. However,
504 if %* appears somewhere in X, then X will be substituted
505 once for each matching switch, with the %* replaced by the
506 part of that switch that matched the '*'.
507 %{.S:X} substitutes X, if processing a file with suffix S.
508 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
510 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
511 combined with !, ., and * as above binding stronger than the OR.
512 If %* appears in X, all of the alternatives must be starred, and
513 only the first matching alternative is substituted.
514 %{S:X; if S was given to CC, substitutes X;
515 T:Y; else if T was given to CC, substitutes Y;
516 :D} else substitutes D. There can be as many clauses as you need.
517 This may be combined with ., !, |, and * as above.
519 %(Spec) processes a specification defined in a specs file as *Spec:
520 %[Spec] as above, but put __ around -D arguments
522 The conditional text X in a %{S:X} or similar construct may contain
523 other nested % constructs or spaces, or even newlines. They are
524 processed as usual, as described above. Trailing white space in X is
525 ignored. White space may also appear anywhere on the left side of the
526 colon in these constructs, except between . or * and the corresponding
529 The -O, -f, -m, and -W switches are handled specifically in these
530 constructs. If another value of -O or the negated form of a -f, -m, or
531 -W switch is found later in the command line, the earlier switch
532 value is ignored, except with {S*} where S is just one letter; this
533 passes all matching options.
535 The character | at the beginning of the predicate text is used to indicate
536 that a command should be piped to the following command, but only if -pipe
539 Note that it is built into CC which switches take arguments and which
540 do not. You might think it would be useful to generalize this to
541 allow each compiler's spec to say which switches take arguments. But
542 this cannot be done in a consistent fashion. CC cannot even decide
543 which input files have been specified without knowing which switches
544 take arguments, and it must know which input files to compile in order
545 to tell which compilers to run.
547 CC also knows implicitly that arguments starting in `-l' are to be
548 treated as compiler output files, and passed to the linker in their
549 proper position among the other output files. */
551 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
553 /* config.h can define ASM_SPEC to provide extra args to the assembler
554 or extra switch-translations. */
559 /* config.h can define ASM_FINAL_SPEC to run a post processor after
560 the assembler has run. */
561 #ifndef ASM_FINAL_SPEC
562 #define ASM_FINAL_SPEC ""
565 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
566 or extra switch-translations. */
571 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
572 or extra switch-translations. */
577 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
578 or extra switch-translations. */
580 #define CC1PLUS_SPEC ""
583 /* config.h can define LINK_SPEC to provide extra args to the linker
584 or extra switch-translations. */
589 /* config.h can define LIB_SPEC to override the default libraries. */
591 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
596 /* XXX: valid only for GNU ld */
597 /* XXX: should exactly match hooks provided by libmudflap.a */
598 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
599 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
600 --wrap=mmap --wrap=munmap --wrap=alloca\
601 } %{fmudflapth: --wrap=pthread_create\
602 }} %{fmudflap|fmudflapth: --wrap=main}"
605 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
608 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
611 #if defined(REAL_LIBGCC_SPEC)
612 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
613 #elif defined(LINK_LIBGCC_SPECIAL_1)
614 /* Have gcc do the search for libgcc.a. */
615 #define LIBGCC_SPEC "libgcc.a%s"
617 #define LIBGCC_SPEC "-lgcc"
621 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
622 #ifndef STARTFILE_SPEC
623 #define STARTFILE_SPEC \
624 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
627 /* config.h can define SWITCHES_NEED_SPACES to control which options
628 require spaces between the option and the argument. */
629 #ifndef SWITCHES_NEED_SPACES
630 #define SWITCHES_NEED_SPACES ""
633 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
635 #define ENDFILE_SPEC ""
639 #define LINKER_NAME "collect2"
642 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
644 #ifndef ASM_DEBUG_SPEC
645 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
646 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
647 # define ASM_DEBUG_SPEC \
648 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
649 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
650 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
652 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
653 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
655 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
656 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
660 #ifndef ASM_DEBUG_SPEC
661 # define ASM_DEBUG_SPEC ""
664 /* Here is the spec for running the linker, after compiling all files. */
666 /* This is overridable by the target in case they need to specify the
667 -lgcc and -lc order specially, yet not require them to override all
668 of LINK_COMMAND_SPEC. */
669 #ifndef LINK_GCC_C_SEQUENCE_SPEC
670 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
673 #ifndef LINK_SSP_SPEC
674 #ifdef TARGET_LIBC_PROVIDES_SSP
675 #define LINK_SSP_SPEC "%{fstack-protector:}"
677 #define LINK_SSP_SPEC "%{fstack-protector:-lssp_nonshared -lssp }"
681 #ifndef LINK_PIE_SPEC
683 #define LINK_PIE_SPEC "%{pie:-pie} "
685 #define LINK_PIE_SPEC "%{pie:} "
689 /* -u* was put back because both BSD and SysV seem to support it. */
690 /* %{static:} simply prevents an error message if the target machine
691 doesn't handle -static. */
692 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
693 scripts which exist in user specified directories, or in standard
695 #ifndef LINK_COMMAND_SPEC
696 #define LINK_COMMAND_SPEC "\
697 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
698 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
699 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
700 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o %(mflib)\
701 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
702 %{!nostdlib:%{!nodefaultlibs:%(link_ssp)%(link_gcc_c_sequence)}}\
703 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
706 #ifndef LINK_LIBGCC_SPEC
707 /* Generate -L options for startfile prefix list. */
708 # define LINK_LIBGCC_SPEC "%D"
711 #ifndef STARTFILE_PREFIX_SPEC
712 # define STARTFILE_PREFIX_SPEC ""
716 # define SYSROOT_SPEC "--sysroot=%R"
719 #ifndef SYSROOT_SUFFIX_SPEC
720 # define SYSROOT_SUFFIX_SPEC ""
723 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
724 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
727 static const char *asm_debug
;
728 static const char *cpp_spec
= CPP_SPEC
;
729 static const char *cc1_spec
= CC1_SPEC
;
730 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
731 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
732 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
733 static const char *asm_spec
= ASM_SPEC
;
734 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
735 static const char *link_spec
= LINK_SPEC
;
736 static const char *lib_spec
= LIB_SPEC
;
737 static const char *mfwrap_spec
= MFWRAP_SPEC
;
738 static const char *mflib_spec
= MFLIB_SPEC
;
739 static const char *libgcc_spec
= LIBGCC_SPEC
;
740 static const char *endfile_spec
= ENDFILE_SPEC
;
741 static const char *startfile_spec
= STARTFILE_SPEC
;
742 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
743 static const char *linker_name_spec
= LINKER_NAME
;
744 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
745 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
746 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
747 static const char *sysroot_spec
= SYSROOT_SPEC
;
748 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
749 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
751 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
752 There should be no need to override these in target dependent files,
753 but we need to copy them to the specs file so that newer versions
754 of the GCC driver can correctly drive older tool chains with the
755 appropriate -B options. */
757 /* When cpplib handles traditional preprocessing, get rid of this, and
758 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
759 that we default the front end language better. */
760 static const char *trad_capable_cpp
=
761 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
763 /* We don't wrap .d files in %W{} since a missing .d file, and
764 therefore no dependency entry, confuses make into thinking a .o
765 file that happens to exist is up-to-date. */
766 static const char *cpp_unique_options
=
767 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
768 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
769 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
770 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
771 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
772 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
773 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
774 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
775 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
778 /* This contains cpp options which are common with cc1_options and are passed
779 only when preprocessing only to avoid duplication. We pass the cc1 spec
780 options to the preprocessor so that it the cc1 spec may manipulate
781 options used to set target flags. Those special target flags settings may
782 in turn cause preprocessor symbols to be defined specially. */
783 static const char *cpp_options
=
784 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
785 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
786 %{undef} %{save-temps:-fpch-preprocess}";
788 /* This contains cpp options which are not passed when the preprocessor
789 output will be used by another program. */
790 static const char *cpp_debug_options
= "%{d*}";
792 /* NB: This is shared amongst all front-ends. */
793 static const char *cc1_options
=
794 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
795 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
796 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
797 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
798 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
799 %{Qn:-fno-ident} %{--help:--help}\
800 %{--target-help:--target-help}\
801 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
802 %{fsyntax-only:-o %j} %{-param*}\
803 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
804 %{coverage:-fprofile-arcs -ftest-coverage}";
806 static const char *asm_options
=
807 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
809 static const char *invoke_as
=
810 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
811 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
813 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
816 /* Some compilers have limits on line lengths, and the multilib_select
817 and/or multilib_matches strings can be very long, so we build them at
819 static struct obstack multilib_obstack
;
820 static const char *multilib_select
;
821 static const char *multilib_matches
;
822 static const char *multilib_defaults
;
823 static const char *multilib_exclusions
;
825 /* Check whether a particular argument is a default argument. */
827 #ifndef MULTILIB_DEFAULTS
828 #define MULTILIB_DEFAULTS { "" }
831 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
833 #ifndef DRIVER_SELF_SPECS
834 #define DRIVER_SELF_SPECS ""
837 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
839 #ifndef OPTION_DEFAULT_SPECS
840 #define OPTION_DEFAULT_SPECS { "", "" }
849 static const struct default_spec
850 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
854 struct user_specs
*next
;
855 const char *filename
;
858 static struct user_specs
*user_specs_head
, *user_specs_tail
;
860 #ifndef SWITCH_TAKES_ARG
861 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
864 #ifndef WORD_SWITCH_TAKES_ARG
865 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
868 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
869 /* This defines which switches stop a full compilation. */
870 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
871 ((CHAR) == 'c' || (CHAR) == 'S')
873 #ifndef SWITCH_CURTAILS_COMPILATION
874 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
875 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
879 /* Record the mapping from file suffixes for compilation specs. */
883 const char *suffix
; /* Use this compiler for input files
884 whose names end in this suffix. */
886 const char *spec
; /* To use this compiler, run this spec. */
888 const char *cpp_spec
; /* If non-NULL, substitute this spec
889 for `%C', rather than the usual
891 const int combinable
; /* If nonzero, compiler can deal with
892 multiple source files at once (IMA). */
893 const int needs_preprocessing
; /* If nonzero, source files need to
894 be run through a preprocessor. */
897 /* Pointer to a vector of `struct compiler' that gives the spec for
898 compiling a file, based on its suffix.
899 A file that does not end in any of these suffixes will be passed
900 unchanged to the loader and nothing else will be done to it.
902 An entry containing two 0s is used to terminate the vector.
904 If multiple entries match a file, the last matching one is used. */
906 static struct compiler
*compilers
;
908 /* Number of entries in `compilers', not counting the null terminator. */
910 static int n_compilers
;
912 /* The default list of file name suffixes and their compilation specs. */
914 static const struct compiler default_compilers
[] =
916 /* Add lists of suffixes of known languages here. If those languages
917 were not present when we built the driver, we will hit these copies
918 and be given a more meaningful error than "file not used since
919 linking is not done". */
920 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
921 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
922 {".mii", "#Objective-C++", 0, 0, 0},
923 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
924 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
925 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
926 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
927 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
928 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
929 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
930 {".FPP", "#Fortran", 0, 0, 0},
931 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
932 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
933 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
934 {".r", "#Ratfor", 0, 0, 0},
935 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
936 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
937 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
938 /* Next come the entries for C. */
939 {".c", "@c", 0, 1, 1},
941 /* cc1 has an integrated ISO C preprocessor. We should invoke the
942 external preprocessor if -save-temps is given. */
943 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
945 %{traditional|ftraditional:\
946 %eGNU C no longer supports -traditional without -E}\
948 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
949 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
950 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
952 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
953 cc1 %(cpp_unique_options) %(cc1_options)}}}\
954 %{!fsyntax-only:%(invoke_as)}} \
956 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
957 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
958 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
959 cc1 %(cpp_unique_options) %(cc1_options)}}\
960 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
962 "%{!E:%e-E or -x required when input is from standard input}\
963 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
964 {".h", "@c-header", 0, 0, 0},
966 /* cc1 has an integrated ISO C preprocessor. We should invoke the
967 external preprocessor if -save-temps is given. */
968 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
970 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
971 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
972 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
974 -o %g.s %{!o*:--output-pch=%i.gch}\
975 %W{o*:--output-pch=%*}%V}\
976 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
977 cc1 %(cpp_unique_options) %(cc1_options)\
978 -o %g.s %{!o*:--output-pch=%i.gch}\
979 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
980 {".i", "@cpp-output", 0, 1, 0},
982 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
983 {".s", "@assembler", 0, 1, 0},
985 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
986 {".S", "@assembler-with-cpp", 0, 1, 0},
987 {"@assembler-with-cpp",
988 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
989 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
990 %{E|M|MM:%(cpp_debug_options)}\
991 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
992 as %(asm_debug) %(asm_options) %|.s %A }}}}"
994 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
995 %{E|M|MM:%(cpp_debug_options)}\
996 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
997 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1002 /* Mark end of table. */
1006 /* Number of elements in default_compilers, not counting the terminator. */
1008 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1010 /* A vector of options to give to the linker.
1011 These options are accumulated by %x,
1012 and substituted into the linker command with %X. */
1013 static int n_linker_options
;
1014 static char **linker_options
;
1016 /* A vector of options to give to the assembler.
1017 These options are accumulated by -Wa,
1018 and substituted into the assembler command with %Y. */
1019 static int n_assembler_options
;
1020 static char **assembler_options
;
1022 /* A vector of options to give to the preprocessor.
1023 These options are accumulated by -Wp,
1024 and substituted into the preprocessor command with %Z. */
1025 static int n_preprocessor_options
;
1026 static char **preprocessor_options
;
1028 /* Define how to map long options into short ones. */
1030 /* This structure describes one mapping. */
1033 /* The long option's name. */
1034 const char *const name
;
1035 /* The equivalent short option. */
1036 const char *const equivalent
;
1037 /* Argument info. A string of flag chars; NULL equals no options.
1038 a => argument required.
1039 o => argument optional.
1040 j => join argument to equivalent, making one word.
1041 * => require other text after NAME as an argument. */
1042 const char *const arg_info
;
1045 /* This is the table of mappings. Mappings are tried sequentially
1046 for each option encountered; the first one that matches, wins. */
1048 static const struct option_map option_map
[] =
1050 {"--all-warnings", "-Wall", 0},
1051 {"--ansi", "-ansi", 0},
1052 {"--assemble", "-S", 0},
1053 {"--assert", "-A", "a"},
1054 {"--classpath", "-fclasspath=", "aj"},
1055 {"--bootclasspath", "-fbootclasspath=", "aj"},
1056 {"--CLASSPATH", "-fclasspath=", "aj"},
1057 {"--combine", "-combine", 0},
1058 {"--comments", "-C", 0},
1059 {"--comments-in-macros", "-CC", 0},
1060 {"--compile", "-c", 0},
1061 {"--debug", "-g", "oj"},
1062 {"--define-macro", "-D", "aj"},
1063 {"--dependencies", "-M", 0},
1064 {"--dump", "-d", "a"},
1065 {"--dumpbase", "-dumpbase", "a"},
1066 {"--encoding", "-fencoding=", "aj"},
1067 {"--entry", "-e", 0},
1068 {"--extra-warnings", "-W", 0},
1069 {"--extdirs", "-fextdirs=", "aj"},
1070 {"--for-assembler", "-Wa", "a"},
1071 {"--for-linker", "-Xlinker", "a"},
1072 {"--force-link", "-u", "a"},
1073 {"--coverage", "-coverage", 0},
1074 {"--imacros", "-imacros", "a"},
1075 {"--include", "-include", "a"},
1076 {"--include-barrier", "-I-", 0},
1077 {"--include-directory", "-I", "aj"},
1078 {"--include-directory-after", "-idirafter", "a"},
1079 {"--include-prefix", "-iprefix", "a"},
1080 {"--include-with-prefix", "-iwithprefix", "a"},
1081 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1082 {"--include-with-prefix-after", "-iwithprefix", "a"},
1083 {"--language", "-x", "a"},
1084 {"--library-directory", "-L", "a"},
1085 {"--machine", "-m", "aj"},
1086 {"--machine-", "-m", "*j"},
1087 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1088 {"--no-line-commands", "-P", 0},
1089 {"--no-precompiled-includes", "-noprecomp", 0},
1090 {"--no-standard-includes", "-nostdinc", 0},
1091 {"--no-standard-libraries", "-nostdlib", 0},
1092 {"--no-warnings", "-w", 0},
1093 {"--optimize", "-O", "oj"},
1094 {"--output", "-o", "a"},
1095 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1096 {"--param", "--param", "a"},
1097 {"--pass-exit-codes", "-pass-exit-codes", 0},
1098 {"--pedantic", "-pedantic", 0},
1099 {"--pedantic-errors", "-pedantic-errors", 0},
1100 {"--pie", "-pie", 0},
1101 {"--pipe", "-pipe", 0},
1102 {"--prefix", "-B", "a"},
1103 {"--preprocess", "-E", 0},
1104 {"--print-search-dirs", "-print-search-dirs", 0},
1105 {"--print-file-name", "-print-file-name=", "aj"},
1106 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1107 {"--print-missing-file-dependencies", "-MG", 0},
1108 {"--print-multi-lib", "-print-multi-lib", 0},
1109 {"--print-multi-directory", "-print-multi-directory", 0},
1110 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1111 {"--print-prog-name", "-print-prog-name=", "aj"},
1112 {"--profile", "-p", 0},
1113 {"--profile-blocks", "-a", 0},
1114 {"--quiet", "-q", 0},
1115 {"--resource", "-fcompile-resource=", "aj"},
1116 {"--save-temps", "-save-temps", 0},
1117 {"--shared", "-shared", 0},
1118 {"--silent", "-q", 0},
1119 {"--specs", "-specs=", "aj"},
1120 {"--static", "-static", 0},
1121 {"--std", "-std=", "aj"},
1122 {"--symbolic", "-symbolic", 0},
1123 {"--time", "-time", 0},
1124 {"--trace-includes", "-H", 0},
1125 {"--traditional", "-traditional", 0},
1126 {"--traditional-cpp", "-traditional-cpp", 0},
1127 {"--trigraphs", "-trigraphs", 0},
1128 {"--undefine-macro", "-U", "aj"},
1129 {"--user-dependencies", "-MM", 0},
1130 {"--verbose", "-v", 0},
1131 {"--warn-", "-W", "*j"},
1132 {"--write-dependencies", "-MD", 0},
1133 {"--write-user-dependencies", "-MMD", 0},
1138 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1139 static const struct {
1140 const char *const option_found
;
1141 const char *const replacements
;
1142 } target_option_translations
[] =
1144 TARGET_OPTION_TRANSLATE_TABLE
,
1149 /* Translate the options described by *ARGCP and *ARGVP.
1150 Make a new vector and store it back in *ARGVP,
1151 and store its length in *ARGVC. */
1154 translate_options (int *argcp
, const char *const **argvp
)
1158 const char *const *argv
= *argvp
;
1159 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1160 const char **newv
= xmalloc (newvsize
);
1164 newv
[newindex
++] = argv
[i
++];
1168 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1172 target_option_translations
[tott_idx
].option_found
;
1175 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1182 for (sp
= target_option_translations
[tott_idx
].replacements
;
1189 newvsize
+= spaces
* sizeof (const char *);
1190 newv
= xrealloc (newv
, newvsize
);
1192 sp
= target_option_translations
[tott_idx
].replacements
;
1201 newv
[newindex
++] = np
;
1202 while (*np
!= ' ' && *np
)
1213 if (target_option_translations
[tott_idx
].option_found
)
1217 /* Translate -- options. */
1218 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1221 /* Find a mapping that applies to this option. */
1222 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1224 size_t optlen
= strlen (option_map
[j
].name
);
1225 size_t arglen
= strlen (argv
[i
]);
1226 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1227 const char *arginfo
= option_map
[j
].arg_info
;
1232 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1234 const char *arg
= 0;
1236 if (arglen
< optlen
)
1239 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1240 if (strlen (option_map
[k
].name
) >= arglen
1241 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1243 error ("ambiguous abbreviation %s", argv
[i
]);
1247 if (k
!= ARRAY_SIZE (option_map
))
1251 if (arglen
> optlen
)
1253 /* If the option has an argument, accept that. */
1254 if (argv
[i
][optlen
] == '=')
1255 arg
= argv
[i
] + optlen
+ 1;
1257 /* If this mapping requires extra text at end of name,
1258 accept that as "argument". */
1259 else if (strchr (arginfo
, '*') != 0)
1260 arg
= argv
[i
] + optlen
;
1262 /* Otherwise, extra text at end means mismatch.
1263 Try other mappings. */
1268 else if (strchr (arginfo
, '*') != 0)
1270 error ("incomplete '%s' option", option_map
[j
].name
);
1274 /* Handle arguments. */
1275 if (strchr (arginfo
, 'a') != 0)
1281 error ("missing argument to '%s' option",
1282 option_map
[j
].name
);
1289 else if (strchr (arginfo
, '*') != 0)
1291 else if (strchr (arginfo
, 'o') == 0)
1294 error ("extraneous argument to '%s' option",
1295 option_map
[j
].name
);
1299 /* Store the translation as one argv elt or as two. */
1300 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1301 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1305 newv
[newindex
++] = option_map
[j
].equivalent
;
1306 newv
[newindex
++] = arg
;
1309 newv
[newindex
++] = option_map
[j
].equivalent
;
1317 /* Handle old-fashioned options--just copy them through,
1318 with their arguments. */
1319 else if (argv
[i
][0] == '-')
1321 const char *p
= argv
[i
] + 1;
1325 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1326 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1327 else if (WORD_SWITCH_TAKES_ARG (p
))
1328 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1329 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1332 else if (! strcmp (p
, "Xlinker"))
1334 else if (! strcmp (p
, "Xpreprocessor"))
1336 else if (! strcmp (p
, "Xassembler"))
1339 /* Watch out for an option at the end of the command line that
1340 is missing arguments, and avoid skipping past the end of the
1342 if (nskip
+ i
> argc
)
1347 newv
[newindex
++] = argv
[i
++];
1352 /* Ordinary operands, or +e options. */
1353 newv
[newindex
++] = argv
[i
++];
1363 skip_whitespace (char *p
)
1367 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1368 be considered whitespace. */
1369 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1371 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1385 /* Structures to keep track of prefixes to try when looking for files. */
1389 const char *prefix
; /* String to prepend to the path. */
1390 struct prefix_list
*next
; /* Next in linked list. */
1391 int require_machine_suffix
; /* Don't use without machine_suffix. */
1392 /* 2 means try both machine_suffix and just_machine_suffix. */
1393 int priority
; /* Sort key - priority within list. */
1394 int os_multilib
; /* 1 if OS multilib scheme should be used,
1395 0 for GCC multilib scheme. */
1400 struct prefix_list
*plist
; /* List of prefixes to try */
1401 int max_len
; /* Max length of a prefix in PLIST */
1402 const char *name
; /* Name of this list (used in config stuff) */
1405 /* List of prefixes to try when looking for executables. */
1407 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1409 /* List of prefixes to try when looking for startup (crt0) files. */
1411 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1413 /* List of prefixes to try when looking for include files. */
1415 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1417 /* Suffix to attach to directories searched for commands.
1418 This looks like `MACHINE/VERSION/'. */
1420 static const char *machine_suffix
= 0;
1422 /* Suffix to attach to directories searched for commands.
1423 This is just `MACHINE/'. */
1425 static const char *just_machine_suffix
= 0;
1427 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1429 static const char *gcc_exec_prefix
;
1431 /* Adjusted value of standard_libexec_prefix. */
1433 static const char *gcc_libexec_prefix
;
1435 /* Default prefixes to attach to command names. */
1437 #ifndef STANDARD_STARTFILE_PREFIX_1
1438 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1440 #ifndef STANDARD_STARTFILE_PREFIX_2
1441 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1444 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1445 #undef MD_EXEC_PREFIX
1446 #undef MD_STARTFILE_PREFIX
1447 #undef MD_STARTFILE_PREFIX_1
1450 /* If no prefixes defined, use the null string, which will disable them. */
1451 #ifndef MD_EXEC_PREFIX
1452 #define MD_EXEC_PREFIX ""
1454 #ifndef MD_STARTFILE_PREFIX
1455 #define MD_STARTFILE_PREFIX ""
1457 #ifndef MD_STARTFILE_PREFIX_1
1458 #define MD_STARTFILE_PREFIX_1 ""
1461 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1462 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1463 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1464 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1466 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1467 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1468 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1469 static const char *const standard_startfile_prefix_1
1470 = STANDARD_STARTFILE_PREFIX_1
;
1471 static const char *const standard_startfile_prefix_2
1472 = STANDARD_STARTFILE_PREFIX_2
;
1474 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1475 static const char *tooldir_prefix
;
1477 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1479 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1481 /* Subdirectory to use for locating libraries. Set by
1482 set_multilib_dir based on the compilation options. */
1484 static const char *multilib_dir
;
1486 /* Subdirectory to use for locating libraries in OS conventions. Set by
1487 set_multilib_dir based on the compilation options. */
1489 static const char *multilib_os_dir
;
1491 /* Structure to keep track of the specs that have been defined so far.
1492 These are accessed using %(specname) or %[specname] in a compiler
1497 /* The following 2 fields must be first */
1498 /* to allow EXTRA_SPECS to be initialized */
1499 const char *name
; /* name of the spec. */
1500 const char *ptr
; /* available ptr if no static pointer */
1502 /* The following fields are not initialized */
1503 /* by EXTRA_SPECS */
1504 const char **ptr_spec
; /* pointer to the spec itself. */
1505 struct spec_list
*next
; /* Next spec in linked list. */
1506 int name_len
; /* length of the name */
1507 int alloc_p
; /* whether string was allocated */
1510 #define INIT_STATIC_SPEC(NAME,PTR) \
1511 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1513 /* List of statically defined specs. */
1514 static struct spec_list static_specs
[] =
1516 INIT_STATIC_SPEC ("asm", &asm_spec
),
1517 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1518 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1519 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1520 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1521 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1522 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1523 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1524 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1525 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1526 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1527 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1528 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1529 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1530 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1531 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1532 INIT_STATIC_SPEC ("link", &link_spec
),
1533 INIT_STATIC_SPEC ("lib", &lib_spec
),
1534 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1535 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1536 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1537 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1538 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1539 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1540 INIT_STATIC_SPEC ("version", &compiler_version
),
1541 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1542 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1543 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1544 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1545 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1546 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1547 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1548 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1549 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1550 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1551 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1552 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1553 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1554 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1555 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1558 #ifdef EXTRA_SPECS /* additional specs needed */
1559 /* Structure to keep track of just the first two args of a spec_list.
1560 That is all that the EXTRA_SPECS macro gives us. */
1563 const char *const name
;
1564 const char *const ptr
;
1567 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1568 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1571 /* List of dynamically allocates specs that have been defined so far. */
1573 static struct spec_list
*specs
= (struct spec_list
*) 0;
1575 /* List of static spec functions. */
1577 static const struct spec_function static_spec_functions
[] =
1579 { "if-exists", if_exists_spec_function
},
1580 { "if-exists-else", if_exists_else_spec_function
},
1581 { "replace-outfile", replace_outfile_spec_function
},
1582 { "version-compare", version_compare_spec_function
},
1586 static int processing_spec_function
;
1588 /* Add appropriate libgcc specs to OBSTACK, taking into account
1589 various permutations of -shared-libgcc, -shared, and such. */
1591 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1593 #ifndef USE_LD_AS_NEEDED
1594 #define USE_LD_AS_NEEDED 0
1598 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1599 const char *static_name
, const char *eh_name
)
1603 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1604 "}%{!static:%{!static-libgcc:",
1605 #if USE_LD_AS_NEEDED
1606 "%{!shared-libgcc:", static_name
,
1607 " --as-needed ", shared_name
, " --no-as-needed}"
1608 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1611 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1612 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1613 static_name
, "}}%{shared:",
1615 "%{shared-libgcc:", shared_name
,
1616 "}%{!shared-libgcc:", static_name
, "}",
1623 obstack_grow (obstack
, buf
, strlen (buf
));
1626 #endif /* ENABLE_SHARED_LIBGCC */
1628 /* Initialize the specs lookup routines. */
1633 struct spec_list
*next
= (struct spec_list
*) 0;
1634 struct spec_list
*sl
= (struct spec_list
*) 0;
1638 return; /* Already initialized. */
1641 notice ("Using built-in specs.\n");
1644 extra_specs
= xcalloc (sizeof (struct spec_list
),
1645 ARRAY_SIZE (extra_specs_1
));
1647 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1649 sl
= &extra_specs
[i
];
1650 sl
->name
= extra_specs_1
[i
].name
;
1651 sl
->ptr
= extra_specs_1
[i
].ptr
;
1653 sl
->name_len
= strlen (sl
->name
);
1654 sl
->ptr_spec
= &sl
->ptr
;
1659 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1660 on ?: in file-scope variable initializations. */
1661 asm_debug
= ASM_DEBUG_SPEC
;
1663 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1665 sl
= &static_specs
[i
];
1670 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1671 /* ??? If neither -shared-libgcc nor --static-libgcc was
1672 seen, then we should be making an educated guess. Some proposed
1673 heuristics for ELF include:
1675 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1676 program will be doing dynamic loading, which will likely
1677 need the shared libgcc.
1679 (2) If "-ldl", then it's also a fair bet that we're doing
1682 (3) For each ET_DYN we're linking against (either through -lfoo
1683 or /some/path/foo.so), check to see whether it or one of
1684 its dependencies depends on a shared libgcc.
1688 If the runtime is fixed to look for program headers instead
1689 of calling __register_frame_info at all, for each object,
1690 use the shared libgcc if any EH symbol referenced.
1692 If crtstuff is fixed to not invoke __register_frame_info
1693 automatically, for each object, use the shared libgcc if
1694 any non-empty unwind section found.
1696 Doing any of this probably requires invoking an external program to
1697 do the actual object file scanning. */
1699 const char *p
= libgcc_spec
;
1702 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1703 when given the proper command line arguments. */
1706 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1708 init_gcc_specs (&obstack
,
1710 #ifdef USE_LIBUNWIND_EXCEPTIONS
1716 #ifdef USE_LIBUNWIND_EXCEPTIONS
1717 # ifdef HAVE_LD_STATIC_DYNAMIC
1718 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1728 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1730 /* Ug. We don't know shared library extensions. Hope that
1731 systems that use this form don't do shared libraries. */
1732 init_gcc_specs (&obstack
,
1736 #ifdef USE_LIBUNWIND_EXCEPTIONS
1745 obstack_1grow (&obstack
, *p
);
1746 in_sep
= (*p
== ' ');
1751 obstack_1grow (&obstack
, '\0');
1752 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1755 #ifdef USE_AS_TRADITIONAL_FORMAT
1756 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1758 static const char tf
[] = "--traditional-format ";
1759 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1760 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1761 asm_spec
= XOBFINISH (&obstack
, const char *);
1765 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1766 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1767 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1768 link_spec
= XOBFINISH (&obstack
, const char *);
1774 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1775 removed; If the spec starts with a + then SPEC is added to the end of the
1779 set_spec (const char *name
, const char *spec
)
1781 struct spec_list
*sl
;
1782 const char *old_spec
;
1783 int name_len
= strlen (name
);
1786 /* If this is the first call, initialize the statically allocated specs. */
1789 struct spec_list
*next
= (struct spec_list
*) 0;
1790 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1792 sl
= &static_specs
[i
];
1799 /* See if the spec already exists. */
1800 for (sl
= specs
; sl
; sl
= sl
->next
)
1801 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1806 /* Not found - make it. */
1807 sl
= xmalloc (sizeof (struct spec_list
));
1808 sl
->name
= xstrdup (name
);
1809 sl
->name_len
= name_len
;
1810 sl
->ptr_spec
= &sl
->ptr
;
1812 *(sl
->ptr_spec
) = "";
1817 old_spec
= *(sl
->ptr_spec
);
1818 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1819 ? concat (old_spec
, spec
+ 1, NULL
)
1824 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1827 /* Free the old spec. */
1828 if (old_spec
&& sl
->alloc_p
)
1829 free ((void *) old_spec
);
1834 /* Accumulate a command (program name and args), and run it. */
1836 /* Vector of pointers to arguments in the current line of specifications. */
1838 static const char **argbuf
;
1840 /* Number of elements allocated in argbuf. */
1842 static int argbuf_length
;
1844 /* Number of elements in argbuf currently in use (containing args). */
1846 static int argbuf_index
;
1848 /* Position in the argbuf array containing the name of the output file
1849 (the value associated with the "-o" flag). */
1851 static int have_o_argbuf_index
= 0;
1853 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1854 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1857 static struct temp_name
{
1858 const char *suffix
; /* suffix associated with the code. */
1859 int length
; /* strlen (suffix). */
1860 int unique
; /* Indicates whether %g or %u/%U was used. */
1861 const char *filename
; /* associated filename. */
1862 int filename_length
; /* strlen (filename). */
1863 struct temp_name
*next
;
1866 /* Number of commands executed so far. */
1868 static int execution_count
;
1870 /* Number of commands that exited with a signal. */
1872 static int signal_count
;
1874 /* Name with which this program was invoked. */
1876 static const char *programname
;
1878 /* Allocate the argument vector. */
1884 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1887 /* Clear out the vector of arguments (after a command is executed). */
1895 /* Add one argument to the vector at the end.
1896 This is done when a space is seen or at the end of the line.
1897 If DELETE_ALWAYS is nonzero, the arg is a filename
1898 and the file should be deleted eventually.
1899 If DELETE_FAILURE is nonzero, the arg is a filename
1900 and the file should be deleted if this compilation fails. */
1903 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1905 if (argbuf_index
+ 1 == argbuf_length
)
1906 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1908 argbuf
[argbuf_index
++] = arg
;
1909 argbuf
[argbuf_index
] = 0;
1911 if (strcmp (arg
, "-o") == 0)
1912 have_o_argbuf_index
= argbuf_index
;
1913 if (delete_always
|| delete_failure
)
1914 record_temp_file (arg
, delete_always
, delete_failure
);
1917 /* Load specs from a file name named FILENAME, replacing occurrences of
1918 various different types of line-endings, \r\n, \n\r and just \r, with
1922 load_specs (const char *filename
)
1926 struct stat statbuf
;
1933 notice ("Reading specs from %s\n", filename
);
1935 /* Open and stat the file. */
1936 desc
= open (filename
, O_RDONLY
, 0);
1938 pfatal_with_name (filename
);
1939 if (stat (filename
, &statbuf
) < 0)
1940 pfatal_with_name (filename
);
1942 /* Read contents of file into BUFFER. */
1943 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1944 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1946 pfatal_with_name (filename
);
1947 buffer
[readlen
] = 0;
1950 specs
= xmalloc (readlen
+ 1);
1952 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1958 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1960 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1974 /* Read compilation specs from a file named FILENAME,
1975 replacing the default ones.
1977 A suffix which starts with `*' is a definition for
1978 one of the machine-specific sub-specs. The "suffix" should be
1979 *asm, *cc1, *cpp, *link, *startfile, etc.
1980 The corresponding spec is stored in asm_spec, etc.,
1981 rather than in the `compilers' vector.
1983 Anything invalid in the file is a fatal error. */
1986 read_specs (const char *filename
, int main_p
)
1991 buffer
= load_specs (filename
);
1993 /* Scan BUFFER for specs, putting them in the vector. */
1999 char *in
, *out
, *p1
, *p2
, *p3
;
2001 /* Advance P in BUFFER to the next nonblank nocomment line. */
2002 p
= skip_whitespace (p
);
2006 /* Is this a special command that starts with '%'? */
2007 /* Don't allow this for the main specs file, since it would
2008 encourage people to overwrite it. */
2009 if (*p
== '%' && !main_p
)
2012 while (*p
&& *p
!= '\n')
2018 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2019 && (p1
[sizeof "%include" - 1] == ' '
2020 || p1
[sizeof "%include" - 1] == '\t'))
2024 p1
+= sizeof ("%include");
2025 while (*p1
== ' ' || *p1
== '\t')
2028 if (*p1
++ != '<' || p
[-2] != '>')
2029 fatal ("specs %%include syntax malformed after %ld characters",
2030 (long) (p1
- buffer
+ 1));
2033 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2034 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2037 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2038 && (p1
[sizeof "%include_noerr" - 1] == ' '
2039 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2043 p1
+= sizeof "%include_noerr";
2044 while (*p1
== ' ' || *p1
== '\t')
2047 if (*p1
++ != '<' || p
[-2] != '>')
2048 fatal ("specs %%include syntax malformed after %ld characters",
2049 (long) (p1
- buffer
+ 1));
2052 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2054 read_specs (new_filename
, FALSE
);
2055 else if (verbose_flag
)
2056 notice ("could not find specs file %s\n", p1
);
2059 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2060 && (p1
[sizeof "%rename" - 1] == ' '
2061 || p1
[sizeof "%rename" - 1] == '\t'))
2064 struct spec_list
*sl
;
2065 struct spec_list
*newsl
;
2067 /* Get original name. */
2068 p1
+= sizeof "%rename";
2069 while (*p1
== ' ' || *p1
== '\t')
2072 if (! ISALPHA ((unsigned char) *p1
))
2073 fatal ("specs %%rename syntax malformed after %ld characters",
2074 (long) (p1
- buffer
));
2077 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2080 if (*p2
!= ' ' && *p2
!= '\t')
2081 fatal ("specs %%rename syntax malformed after %ld characters",
2082 (long) (p2
- buffer
));
2086 while (*p2
== ' ' || *p2
== '\t')
2089 if (! ISALPHA ((unsigned char) *p2
))
2090 fatal ("specs %%rename syntax malformed after %ld characters",
2091 (long) (p2
- buffer
));
2093 /* Get new spec name. */
2095 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2099 fatal ("specs %%rename syntax malformed after %ld characters",
2100 (long) (p3
- buffer
));
2103 for (sl
= specs
; sl
; sl
= sl
->next
)
2104 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2108 fatal ("specs %s spec was not found to be renamed", p1
);
2110 if (strcmp (p1
, p2
) == 0)
2113 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2114 if (strcmp (newsl
->name
, p2
) == 0)
2115 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2120 notice ("rename spec %s to %s\n", p1
, p2
);
2122 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2126 set_spec (p2
, *(sl
->ptr_spec
));
2128 free ((void *) *(sl
->ptr_spec
));
2130 *(sl
->ptr_spec
) = "";
2135 fatal ("specs unknown %% command after %ld characters",
2136 (long) (p1
- buffer
));
2139 /* Find the colon that should end the suffix. */
2141 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2144 /* The colon shouldn't be missing. */
2146 fatal ("specs file malformed after %ld characters",
2147 (long) (p1
- buffer
));
2149 /* Skip back over trailing whitespace. */
2151 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2154 /* Copy the suffix to a string. */
2155 suffix
= save_string (p
, p2
- p
);
2156 /* Find the next line. */
2157 p
= skip_whitespace (p1
+ 1);
2159 fatal ("specs file malformed after %ld characters",
2160 (long) (p
- buffer
));
2163 /* Find next blank line or end of string. */
2164 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2167 /* Specs end at the blank line and do not include the newline. */
2168 spec
= save_string (p
, p1
- p
);
2171 /* Delete backslash-newline sequences from the spec. */
2176 if (in
[0] == '\\' && in
[1] == '\n')
2178 else if (in
[0] == '#')
2179 while (*in
&& *in
!= '\n')
2187 if (suffix
[0] == '*')
2189 if (! strcmp (suffix
, "*link_command"))
2190 link_command_spec
= spec
;
2192 set_spec (suffix
+ 1, spec
);
2196 /* Add this pair to the vector. */
2198 = xrealloc (compilers
,
2199 (n_compilers
+ 2) * sizeof (struct compiler
));
2201 compilers
[n_compilers
].suffix
= suffix
;
2202 compilers
[n_compilers
].spec
= spec
;
2204 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2208 link_command_spec
= spec
;
2211 if (link_command_spec
== 0)
2212 fatal ("spec file has no spec for linking");
2215 /* Record the names of temporary files we tell compilers to write,
2216 and delete them at the end of the run. */
2218 /* This is the common prefix we use to make temp file names.
2219 It is chosen once for each run of this program.
2220 It is substituted into a spec by %g or %j.
2221 Thus, all temp file names contain this prefix.
2222 In practice, all temp file names start with this prefix.
2224 This prefix comes from the envvar TMPDIR if it is defined;
2225 otherwise, from the P_tmpdir macro if that is defined;
2226 otherwise, in /usr/tmp or /tmp;
2227 or finally the current directory if all else fails. */
2229 static const char *temp_filename
;
2231 /* Length of the prefix. */
2233 static int temp_filename_length
;
2235 /* Define the list of temporary files to delete. */
2240 struct temp_file
*next
;
2243 /* Queue of files to delete on success or failure of compilation. */
2244 static struct temp_file
*always_delete_queue
;
2245 /* Queue of files to delete on failure of compilation. */
2246 static struct temp_file
*failure_delete_queue
;
2248 /* Record FILENAME as a file to be deleted automatically.
2249 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2250 otherwise delete it in any case.
2251 FAIL_DELETE nonzero means delete it if a compilation step fails;
2252 otherwise delete it in any case. */
2255 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2257 char *const name
= xstrdup (filename
);
2261 struct temp_file
*temp
;
2262 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2263 if (! strcmp (name
, temp
->name
))
2266 temp
= xmalloc (sizeof (struct temp_file
));
2267 temp
->next
= always_delete_queue
;
2269 always_delete_queue
= temp
;
2276 struct temp_file
*temp
;
2277 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2278 if (! strcmp (name
, temp
->name
))
2281 temp
= xmalloc (sizeof (struct temp_file
));
2282 temp
->next
= failure_delete_queue
;
2284 failure_delete_queue
= temp
;
2290 /* Delete all the temporary files whose names we previously recorded. */
2292 #ifndef DELETE_IF_ORDINARY
2293 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2296 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2297 if (unlink (NAME) < 0) \
2299 perror_with_name (NAME); \
2304 delete_if_ordinary (const char *name
)
2310 printf ("Delete %s? (y or n) ", name
);
2314 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2317 if (i
== 'y' || i
== 'Y')
2319 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2323 delete_temp_files (void)
2325 struct temp_file
*temp
;
2327 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2328 delete_if_ordinary (temp
->name
);
2329 always_delete_queue
= 0;
2332 /* Delete all the files to be deleted on error. */
2335 delete_failure_queue (void)
2337 struct temp_file
*temp
;
2339 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2340 delete_if_ordinary (temp
->name
);
2344 clear_failure_queue (void)
2346 failure_delete_queue
= 0;
2349 /* Build a list of search directories from PATHS.
2350 PREFIX is a string to prepend to the list.
2351 If CHECK_DIR_P is nonzero we ensure the directory exists.
2352 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2353 It is also used by the --print-search-dirs flag. */
2356 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2359 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2361 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2362 int first_time
= TRUE
;
2363 struct prefix_list
*pprefix
;
2365 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2366 obstack_1grow (&collect_obstack
, '=');
2368 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2370 int len
= strlen (pprefix
->prefix
);
2374 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2377 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2380 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2381 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2384 if (just_machine_suffix
2385 && pprefix
->require_machine_suffix
== 2
2387 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2390 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2393 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2394 obstack_grow (&collect_obstack
, just_machine_suffix
,
2398 if (! pprefix
->require_machine_suffix
)
2401 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2404 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2408 obstack_1grow (&collect_obstack
, '\0');
2409 return XOBFINISH (&collect_obstack
, char *);
2412 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2416 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2418 putenv (build_search_list (paths
, env_var
, 1));
2421 /* Check whether NAME can be accessed in MODE. This is like access,
2422 except that it never considers directories to be executable. */
2425 access_check (const char *name
, int mode
)
2431 if (stat (name
, &st
) < 0
2432 || S_ISDIR (st
.st_mode
))
2436 return access (name
, mode
);
2439 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2440 access to check permissions.
2441 Return 0 if not found, otherwise return its name, allocated with malloc. */
2444 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2448 const char *const file_suffix
=
2449 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2450 struct prefix_list
*pl
;
2451 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2452 const char *multilib_name
, *multilib_os_name
;
2454 #ifdef DEFAULT_ASSEMBLER
2455 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2456 return xstrdup (DEFAULT_ASSEMBLER
);
2459 #ifdef DEFAULT_LINKER
2460 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2461 return xstrdup (DEFAULT_LINKER
);
2465 len
+= strlen (machine_suffix
);
2467 multilib_name
= name
;
2468 multilib_os_name
= name
;
2469 if (multilib
&& multilib_os_dir
)
2471 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2472 int len2
= strlen (multilib_os_dir
) + 1;
2474 len
+= len1
> len2
? len1
: len2
;
2476 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2478 if (strcmp (multilib_os_dir
, ".") != 0)
2479 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2483 temp
= xmalloc (len
);
2485 /* Determine the filename to execute (special case for absolute paths). */
2487 if (IS_ABSOLUTE_PATH (name
))
2489 if (access (name
, mode
) == 0)
2491 strcpy (temp
, name
);
2496 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2498 const char *this_name
2499 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2503 /* Some systems have a suffix for executable files.
2504 So try appending that first. */
2505 if (file_suffix
[0] != 0)
2507 strcpy (temp
, pl
->prefix
);
2508 strcat (temp
, machine_suffix
);
2509 strcat (temp
, multilib_name
);
2510 strcat (temp
, file_suffix
);
2511 if (access_check (temp
, mode
) == 0)
2515 /* Now try just the multilib_name. */
2516 strcpy (temp
, pl
->prefix
);
2517 strcat (temp
, machine_suffix
);
2518 strcat (temp
, multilib_name
);
2519 if (access_check (temp
, mode
) == 0)
2523 /* Certain prefixes are tried with just the machine type,
2524 not the version. This is used for finding as, ld, etc. */
2525 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2527 /* Some systems have a suffix for executable files.
2528 So try appending that first. */
2529 if (file_suffix
[0] != 0)
2531 strcpy (temp
, pl
->prefix
);
2532 strcat (temp
, just_machine_suffix
);
2533 strcat (temp
, multilib_name
);
2534 strcat (temp
, file_suffix
);
2535 if (access_check (temp
, mode
) == 0)
2539 strcpy (temp
, pl
->prefix
);
2540 strcat (temp
, just_machine_suffix
);
2541 strcat (temp
, multilib_name
);
2542 if (access_check (temp
, mode
) == 0)
2546 /* Certain prefixes can't be used without the machine suffix
2547 when the machine or version is explicitly specified. */
2548 if (! pl
->require_machine_suffix
)
2550 /* Some systems have a suffix for executable files.
2551 So try appending that first. */
2552 if (file_suffix
[0] != 0)
2554 strcpy (temp
, pl
->prefix
);
2555 strcat (temp
, this_name
);
2556 strcat (temp
, file_suffix
);
2557 if (access_check (temp
, mode
) == 0)
2561 strcpy (temp
, pl
->prefix
);
2562 strcat (temp
, this_name
);
2563 if (access_check (temp
, mode
) == 0)
2572 /* Ranking of prefixes in the sort list. -B prefixes are put before
2575 enum path_prefix_priority
2577 PREFIX_PRIORITY_B_OPT
,
2578 PREFIX_PRIORITY_LAST
2581 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2582 order according to PRIORITY. Within each PRIORITY, new entries are
2585 If WARN is nonzero, we will warn if no file is found
2586 through this prefix. WARN should point to an int
2587 which will be set to 1 if this entry is used.
2589 COMPONENT is the value to be passed to update_path.
2591 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2592 the complete value of machine_suffix.
2593 2 means try both machine_suffix and just_machine_suffix. */
2596 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2597 const char *component
, /* enum prefix_priority */ int priority
,
2598 int require_machine_suffix
, int os_multilib
)
2600 struct prefix_list
*pl
, **prev
;
2603 for (prev
= &pprefix
->plist
;
2604 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2605 prev
= &(*prev
)->next
)
2608 /* Keep track of the longest prefix. */
2610 prefix
= update_path (prefix
, component
);
2611 len
= strlen (prefix
);
2612 if (len
> pprefix
->max_len
)
2613 pprefix
->max_len
= len
;
2615 pl
= xmalloc (sizeof (struct prefix_list
));
2616 pl
->prefix
= prefix
;
2617 pl
->require_machine_suffix
= require_machine_suffix
;
2618 pl
->priority
= priority
;
2619 pl
->os_multilib
= os_multilib
;
2621 /* Insert after PREV. */
2626 /* Same as add_prefix, but prepending target_system_root to prefix. */
2628 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2629 const char *component
,
2630 /* enum prefix_priority */ int priority
,
2631 int require_machine_suffix
, int os_multilib
)
2633 if (!IS_ABSOLUTE_PATH (prefix
))
2634 fatal ("system path '%s' is not absolute", prefix
);
2636 if (target_system_root
)
2638 if (target_sysroot_suffix
)
2639 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2640 prefix
= concat (target_system_root
, prefix
, NULL
);
2642 /* We have to override this because GCC's notion of sysroot
2643 moves along with GCC. */
2647 add_prefix (pprefix
, prefix
, component
, priority
,
2648 require_machine_suffix
, os_multilib
);
2651 /* Execute the command specified by the arguments on the current line of spec.
2652 When using pipes, this includes several piped-together commands
2653 with `|' between them.
2655 Return 0 if successful, -1 if failed. */
2661 int n_commands
; /* # of command. */
2663 struct pex_obj
*pex
;
2666 const char *prog
; /* program name. */
2667 const char **argv
; /* vector of args. */
2670 struct command
*commands
; /* each command buffer with above info. */
2672 gcc_assert (!processing_spec_function
);
2674 /* Count # of piped commands. */
2675 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2676 if (strcmp (argbuf
[i
], "|") == 0)
2679 /* Get storage for each command. */
2680 commands
= alloca (n_commands
* sizeof (struct command
));
2682 /* Split argbuf into its separate piped processes,
2683 and record info about each one.
2684 Also search for the programs that are to be run. */
2686 commands
[0].prog
= argbuf
[0]; /* first command. */
2687 commands
[0].argv
= &argbuf
[0];
2688 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2691 commands
[0].argv
[0] = string
;
2693 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2694 if (strcmp (argbuf
[i
], "|") == 0)
2695 { /* each command. */
2696 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2697 fatal ("-pipe not supported");
2699 argbuf
[i
] = 0; /* termination of command args. */
2700 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2701 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2702 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2705 commands
[n_commands
].argv
[0] = string
;
2709 argbuf
[argbuf_index
] = 0;
2711 /* If -v, print what we are about to do, and maybe query. */
2715 /* For help listings, put a blank line between sub-processes. */
2716 if (print_help_list
)
2717 fputc ('\n', stderr
);
2719 /* Print each piped command as a separate line. */
2720 for (i
= 0; i
< n_commands
; i
++)
2722 const char *const *j
;
2724 if (verbose_only_flag
)
2726 for (j
= commands
[i
].argv
; *j
; j
++)
2729 fprintf (stderr
, " \"");
2730 for (p
= *j
; *p
; ++p
)
2732 if (*p
== '"' || *p
== '\\' || *p
== '$')
2733 fputc ('\\', stderr
);
2736 fputc ('"', stderr
);
2740 for (j
= commands
[i
].argv
; *j
; j
++)
2741 fprintf (stderr
, " %s", *j
);
2743 /* Print a pipe symbol after all but the last command. */
2744 if (i
+ 1 != n_commands
)
2745 fprintf (stderr
, " |");
2746 fprintf (stderr
, "\n");
2749 if (verbose_only_flag
!= 0)
2751 /* verbose_only_flag should act as if the spec was
2752 executed, so increment execution_count before
2753 returning. This prevents spurious warnings about
2754 unused linker input files, etc. */
2759 notice ("\nGo ahead? (y or n) ");
2763 while (getchar () != '\n')
2766 if (i
!= 'y' && i
!= 'Y')
2771 #ifdef ENABLE_VALGRIND_CHECKING
2772 /* Run the each command through valgrind. To simplify prepending the
2773 path to valgrind and the option "-q" (for quiet operation unless
2774 something triggers), we allocate a separate argv array. */
2776 for (i
= 0; i
< n_commands
; i
++)
2782 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2785 argv
= alloca ((argc
+ 3) * sizeof (char *));
2787 argv
[0] = VALGRIND_PATH
;
2789 for (j
= 2; j
< argc
+ 2; j
++)
2790 argv
[j
] = commands
[i
].argv
[j
- 2];
2793 commands
[i
].argv
= argv
;
2794 commands
[i
].prog
= argv
[0];
2798 /* Run each piped subprocess. */
2800 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2801 programname
, temp_filename
);
2803 pfatal_with_name (_("pex_init failed"));
2805 for (i
= 0; i
< n_commands
; i
++)
2809 const char *string
= commands
[i
].argv
[0];
2811 errmsg
= pex_run (pex
,
2812 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2813 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2814 string
, (char * const *) commands
[i
].argv
,
2823 pfatal_with_name (errmsg
);
2827 if (string
!= commands
[i
].prog
)
2828 free ((void *) string
);
2833 /* Wait for all the subprocesses to finish. */
2837 struct pex_time
*times
= NULL
;
2840 statuses
= alloca (n_commands
* sizeof (int));
2841 if (!pex_get_status (pex
, n_commands
, statuses
))
2842 pfatal_with_name (_("failed to get exit status"));
2846 times
= alloca (n_commands
* sizeof (struct pex_time
));
2847 if (!pex_get_times (pex
, n_commands
, times
))
2848 pfatal_with_name (_("failed to get process times"));
2853 for (i
= 0; i
< n_commands
; ++i
)
2855 int status
= statuses
[i
];
2857 if (WIFSIGNALED (status
))
2860 /* SIGPIPE is a special case. It happens in -pipe mode
2861 when the compiler dies before the preprocessor is done,
2862 or the assembler dies before the compiler is done.
2863 There's generally been an error already, and this is
2864 just fallout. So don't generate another error unless
2865 we would otherwise have succeeded. */
2866 if (WTERMSIG (status
) == SIGPIPE
2867 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2872 Internal error: %s (program %s)\n\
2873 Please submit a full bug report.\n\
2874 See %s for instructions.",
2875 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
2880 else if (WIFEXITED (status
)
2881 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2883 if (WEXITSTATUS (status
) > greatest_status
)
2884 greatest_status
= WEXITSTATUS (status
);
2890 struct pex_time
*pt
= ×
[i
];
2893 ut
= ((double) pt
->user_seconds
2894 + (double) pt
->user_microseconds
/ 1.0e6
);
2895 st
= ((double) pt
->system_seconds
2896 + (double) pt
->system_microseconds
/ 1.0e6
);
2899 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
2907 /* Find all the switches given to us
2908 and make a vector describing them.
2909 The elements of the vector are strings, one per switch given.
2910 If a switch uses following arguments, then the `part1' field
2911 is the switch itself and the `args' field
2912 is a null-terminated vector containing the following arguments.
2913 The `live_cond' field is:
2915 1 if the switch is true in a conditional spec,
2916 -1 if false (overridden by a later switch)
2917 -2 if this switch should be ignored (used in %<S)
2918 The `validated' field is nonzero if any spec has looked at this switch;
2919 if it remains zero at the end of the run, it must be meaningless. */
2922 #define SWITCH_FALSE -1
2923 #define SWITCH_IGNORE -2
2924 #define SWITCH_LIVE 1
2931 unsigned char validated
;
2932 unsigned char ordering
;
2935 static struct switchstr
*switches
;
2937 static int n_switches
;
2939 /* Language is one of three things:
2941 1) The name of a real programming language.
2942 2) NULL, indicating that no one has figured out
2944 3) '*', indicating that the file should be passed
2949 const char *language
;
2950 struct compiler
*incompiler
;
2955 /* Also a vector of input files specified. */
2957 static struct infile
*infiles
;
2961 /* True if multiple input files are being compiled to a single
2964 static bool combine_inputs
;
2966 /* This counts the number of libraries added by lang_specific_driver, so that
2967 we can tell if there were any user supplied any files or libraries. */
2969 static int added_libraries
;
2971 /* And a vector of corresponding output files is made up later. */
2973 const char **outfiles
;
2975 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2977 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2978 is true if we should look for an executable suffix. DO_OBJ
2979 is true if we should look for an object suffix. */
2982 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2983 int do_obj ATTRIBUTE_UNUSED
)
2985 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2993 len
= strlen (name
);
2995 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2996 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2997 if (do_obj
&& len
> 2
2998 && name
[len
- 2] == '.'
2999 && name
[len
- 1] == 'o')
3001 obstack_grow (&obstack
, name
, len
- 2);
3002 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3003 name
= XOBFINISH (&obstack
, const char *);
3007 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3008 /* If there is no filetype, make it the executable suffix (which includes
3009 the "."). But don't get confused if we have just "-o". */
3010 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3013 for (i
= len
- 1; i
>= 0; i
--)
3014 if (IS_DIR_SEPARATOR (name
[i
]))
3017 for (i
++; i
< len
; i
++)
3021 obstack_grow (&obstack
, name
, len
);
3022 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3023 strlen (TARGET_EXECUTABLE_SUFFIX
));
3024 name
= XOBFINISH (&obstack
, const char *);
3031 /* Display the command line switches accepted by gcc. */
3035 printf (_("Usage: %s [options] file...\n"), programname
);
3036 fputs (_("Options:\n"), stdout
);
3038 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3039 fputs (_(" --help Display this information\n"), stdout
);
3040 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3042 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3043 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3044 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3045 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3046 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3047 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3048 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3049 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3050 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3052 -print-multi-lib Display the mapping between command line options and\n\
3053 multiple library search directories\n"), stdout
);
3054 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3055 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3056 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3057 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3058 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3059 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3060 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3061 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3062 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3063 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3064 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3065 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3066 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3067 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3068 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3069 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3070 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3071 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3072 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3073 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3074 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3075 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3077 -x <language> Specify the language of the following input files\n\
3078 Permissible languages include: c c++ assembler none\n\
3079 'none' means revert to the default behavior of\n\
3080 guessing the language based on the file's extension\n\
3084 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3085 passed on to the various sub-processes invoked by %s. In order to pass\n\
3086 other options on to these processes the -W<letter> options must be used.\n\
3089 /* The rest of the options are displayed by invocations of the various
3094 add_preprocessor_option (const char *option
, int len
)
3096 n_preprocessor_options
++;
3098 if (! preprocessor_options
)
3099 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3101 preprocessor_options
= xrealloc (preprocessor_options
,
3102 n_preprocessor_options
* sizeof (char *));
3104 preprocessor_options
[n_preprocessor_options
- 1] =
3105 save_string (option
, len
);
3109 add_assembler_option (const char *option
, int len
)
3111 n_assembler_options
++;
3113 if (! assembler_options
)
3114 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3116 assembler_options
= xrealloc (assembler_options
,
3117 n_assembler_options
* sizeof (char *));
3119 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3123 add_linker_option (const char *option
, int len
)
3127 if (! linker_options
)
3128 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3130 linker_options
= xrealloc (linker_options
,
3131 n_linker_options
* sizeof (char *));
3133 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3136 /* Create the vector `switches' and its contents.
3137 Store its length in `n_switches'. */
3140 process_command (int argc
, const char **argv
)
3145 const char *spec_lang
= 0;
3146 int last_language_n_infiles
;
3148 int lang_n_infiles
= 0;
3149 #ifdef MODIFY_TARGET_NAME
3150 int is_modify_target_name
;
3154 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3158 added_libraries
= 0;
3160 /* Figure compiler version from version string. */
3162 compiler_version
= temp1
= xstrdup (version_string
);
3164 for (; *temp1
; ++temp1
)
3173 /* If there is a -V or -b option (or both), process it now, before
3174 trying to interpret the rest of the command line. */
3175 if (argc
> 1 && argv
[1][0] == '-'
3176 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3178 const char *new_version
= DEFAULT_TARGET_VERSION
;
3179 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3180 const char *progname
= argv
[0];
3185 while (argc
> 1 && argv
[1][0] == '-'
3186 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3188 char opt
= argv
[1][1];
3190 if (argv
[1][2] != '\0')
3203 fatal ("'-%c' option must have argument", opt
);
3210 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3211 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3213 new_argv0
= xmemdup (progname
, baselen
,
3214 baselen
+ concat_length (new_version
, new_machine
,
3215 "-gcc-", NULL
) + 1);
3216 strcpy (new_argv0
+ baselen
, new_machine
);
3217 strcat (new_argv0
, "-gcc-");
3218 strcat (new_argv0
, new_version
);
3220 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3221 (argc
+ 1) * sizeof (argv
[0]));
3222 new_argv
[0] = new_argv0
;
3224 execvp (new_argv0
, new_argv
);
3225 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3228 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3229 see if we can create it from the pathname specified in argv[0]. */
3231 gcc_libexec_prefix
= standard_libexec_prefix
;
3233 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3234 if (!gcc_exec_prefix
)
3236 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3237 standard_exec_prefix
);
3238 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3239 standard_bindir_prefix
,
3240 standard_libexec_prefix
);
3241 if (gcc_exec_prefix
)
3242 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3245 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3246 standard_exec_prefix
,
3247 standard_libexec_prefix
);
3251 if (gcc_exec_prefix
)
3253 int len
= strlen (gcc_exec_prefix
);
3255 if (len
> (int) sizeof ("/lib/gcc/") - 1
3256 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3258 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3259 if (IS_DIR_SEPARATOR (*temp
)
3260 && strncmp (temp
+ 1, "lib", 3) == 0
3261 && IS_DIR_SEPARATOR (temp
[4])
3262 && strncmp (temp
+ 5, "gcc", 3) == 0)
3263 len
-= sizeof ("/lib/gcc/") - 1;
3266 set_std_prefix (gcc_exec_prefix
, len
);
3267 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3268 PREFIX_PRIORITY_LAST
, 0, 0);
3269 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3270 PREFIX_PRIORITY_LAST
, 0, 0);
3273 /* COMPILER_PATH and LIBRARY_PATH have values
3274 that are lists of directory names with colons. */
3276 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3279 const char *startp
, *endp
;
3280 char *nstore
= alloca (strlen (temp
) + 3);
3282 startp
= endp
= temp
;
3285 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3287 strncpy (nstore
, startp
, endp
- startp
);
3289 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3290 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3292 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3293 nstore
[endp
- startp
+ 1] = 0;
3296 nstore
[endp
- startp
] = 0;
3297 add_prefix (&exec_prefixes
, nstore
, 0,
3298 PREFIX_PRIORITY_LAST
, 0, 0);
3299 add_prefix (&include_prefixes
, nstore
, 0,
3300 PREFIX_PRIORITY_LAST
, 0, 0);
3303 endp
= startp
= endp
+ 1;
3310 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3311 if (temp
&& *cross_compile
== '0')
3313 const char *startp
, *endp
;
3314 char *nstore
= alloca (strlen (temp
) + 3);
3316 startp
= endp
= temp
;
3319 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3321 strncpy (nstore
, startp
, endp
- startp
);
3323 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3324 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3326 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3327 nstore
[endp
- startp
+ 1] = 0;
3330 nstore
[endp
- startp
] = 0;
3331 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3332 PREFIX_PRIORITY_LAST
, 0, 1);
3335 endp
= startp
= endp
+ 1;
3342 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3343 GET_ENVIRONMENT (temp
, "LPATH");
3344 if (temp
&& *cross_compile
== '0')
3346 const char *startp
, *endp
;
3347 char *nstore
= alloca (strlen (temp
) + 3);
3349 startp
= endp
= temp
;
3352 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3354 strncpy (nstore
, startp
, endp
- startp
);
3356 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3357 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3359 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3360 nstore
[endp
- startp
+ 1] = 0;
3363 nstore
[endp
- startp
] = 0;
3364 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3365 PREFIX_PRIORITY_LAST
, 0, 1);
3368 endp
= startp
= endp
+ 1;
3375 /* Convert new-style -- options to old-style. */
3376 translate_options (&argc
, (const char *const **) &argv
);
3378 /* Do language-specific adjustment/addition of flags. */
3379 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3381 /* Scan argv twice. Here, the first time, just count how many switches
3382 there will be in their vector, and how many input files in theirs.
3383 Here we also parse the switches that cc itself uses (e.g. -v). */
3385 for (i
= 1; i
< argc
; i
++)
3387 if (! strcmp (argv
[i
], "-dumpspecs"))
3389 struct spec_list
*sl
;
3391 for (sl
= specs
; sl
; sl
= sl
->next
)
3392 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3393 if (link_command_spec
)
3394 printf ("*link_command:\n%s\n\n", link_command_spec
);
3397 else if (! strcmp (argv
[i
], "-dumpversion"))
3399 printf ("%s\n", spec_version
);
3402 else if (! strcmp (argv
[i
], "-dumpmachine"))
3404 printf ("%s\n", spec_machine
);
3407 else if (strcmp (argv
[i
], "-fversion") == 0)
3409 /* translate_options () has turned --version into -fversion. */
3410 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3411 printf ("Copyright %s 2005 Free Software Foundation, Inc.\n",
3413 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3414 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3418 else if (strcmp (argv
[i
], "-fhelp") == 0)
3420 /* translate_options () has turned --help into -fhelp. */
3421 print_help_list
= 1;
3423 /* We will be passing a dummy file on to the sub-processes. */
3427 /* CPP driver cannot obtain switch from cc1_options. */
3429 add_preprocessor_option ("--help", 6);
3430 add_assembler_option ("--help", 6);
3431 add_linker_option ("--help", 6);
3433 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3435 /* translate_options() has turned --target-help into -ftarget-help. */
3436 target_help_flag
= 1;
3438 /* We will be passing a dummy file on to the sub-processes. */
3442 /* CPP driver cannot obtain switch from cc1_options. */
3444 add_preprocessor_option ("--target-help", 13);
3445 add_assembler_option ("--target-help", 13);
3446 add_linker_option ("--target-help", 13);
3448 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3450 pass_exit_codes
= 1;
3453 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3454 print_search_dirs
= 1;
3455 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3456 print_file_name
= "libgcc.a";
3457 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3458 print_file_name
= argv
[i
] + 17;
3459 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3460 print_prog_name
= argv
[i
] + 17;
3461 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3462 print_multi_lib
= 1;
3463 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3464 print_multi_directory
= 1;
3465 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3466 print_multi_os_directory
= 1;
3467 else if (! strncmp (argv
[i
], "-Wa,", 4))
3470 /* Pass the rest of this option to the assembler. */
3472 /* Split the argument at commas. */
3474 for (j
= 4; argv
[i
][j
]; j
++)
3475 if (argv
[i
][j
] == ',')
3477 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3481 /* Record the part after the last comma. */
3482 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3484 else if (! strncmp (argv
[i
], "-Wp,", 4))
3487 /* Pass the rest of this option to the preprocessor. */
3489 /* Split the argument at commas. */
3491 for (j
= 4; argv
[i
][j
]; j
++)
3492 if (argv
[i
][j
] == ',')
3494 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3498 /* Record the part after the last comma. */
3499 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3501 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3502 /* The +e options to the C++ front-end. */
3504 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3507 /* Split the argument at commas. */
3508 for (j
= 3; argv
[i
][j
]; j
++)
3509 n_infiles
+= (argv
[i
][j
] == ',');
3511 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3514 fatal ("argument to '-Xlinker' is missing");
3519 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3522 fatal ("argument to '-Xpreprocessor' is missing");
3524 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3526 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3529 fatal ("argument to '-Xassembler' is missing");
3531 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3533 else if (strcmp (argv
[i
], "-l") == 0)
3536 fatal ("argument to '-l' is missing");
3541 else if (strncmp (argv
[i
], "-l", 2) == 0)
3543 else if (strcmp (argv
[i
], "-save-temps") == 0)
3545 save_temps_flag
= 1;
3548 else if (strcmp (argv
[i
], "-combine") == 0)
3553 else if (strcmp (argv
[i
], "-specs") == 0)
3555 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3557 fatal ("argument to '-specs' is missing");
3559 user
->next
= (struct user_specs
*) 0;
3560 user
->filename
= argv
[i
];
3561 if (user_specs_tail
)
3562 user_specs_tail
->next
= user
;
3564 user_specs_head
= user
;
3565 user_specs_tail
= user
;
3567 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3569 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3570 if (strlen (argv
[i
]) == 7)
3571 fatal ("argument to '-specs=' is missing");
3573 user
->next
= (struct user_specs
*) 0;
3574 user
->filename
= argv
[i
] + 7;
3575 if (user_specs_tail
)
3576 user_specs_tail
->next
= user
;
3578 user_specs_head
= user
;
3579 user_specs_tail
= user
;
3581 else if (strcmp (argv
[i
], "-time") == 0)
3583 else if (strcmp (argv
[i
], "-pipe") == 0)
3585 /* -pipe has to go into the switches array as well as
3590 else if (strcmp (argv
[i
], "-###") == 0)
3592 /* This is similar to -v except that there is no execution
3593 of the commands and the echoed arguments are quoted. It
3594 is intended for use in shell scripts to capture the
3595 driver-generated command line. */
3596 verbose_only_flag
++;
3599 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3601 const char *p
= &argv
[i
][1];
3608 fatal ("'-%c' must come at the start of the command line", c
);
3616 if (p
[1] == 0 && i
+ 1 == argc
)
3617 fatal ("argument to '-B' is missing");
3623 len
= strlen (value
);
3625 /* Catch the case where the user has forgotten to append a
3626 directory separator to the path. Note, they may be using
3627 -B to add an executable name prefix, eg "i386-elf-", in
3628 order to distinguish between multiple installations of
3629 GCC in the same directory. Hence we must check to see
3630 if appending a directory separator actually makes a
3631 valid directory name. */
3632 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3633 && is_directory (value
, "", 0))
3635 char *tmp
= xmalloc (len
+ 2);
3636 strcpy (tmp
, value
);
3637 tmp
[len
] = DIR_SEPARATOR
;
3642 /* As a kludge, if the arg is "[foo/]stageN/", just
3643 add "[foo/]include" to the include prefix. */
3646 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3647 && strncmp (value
+ len
- 7, "stage", 5) == 0
3648 && ISDIGIT (value
[len
- 2])
3649 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3652 add_prefix (&include_prefixes
, "./", NULL
,
3653 PREFIX_PRIORITY_B_OPT
, 0, 0);
3656 char *string
= xmalloc (len
- 6);
3657 memcpy (string
, value
, len
- 7);
3658 string
[len
- 7] = 0;
3659 add_prefix (&include_prefixes
, string
, NULL
,
3660 PREFIX_PRIORITY_B_OPT
, 0, 0);
3664 add_prefix (&exec_prefixes
, value
, NULL
,
3665 PREFIX_PRIORITY_B_OPT
, 0, 0);
3666 add_prefix (&startfile_prefixes
, value
, NULL
,
3667 PREFIX_PRIORITY_B_OPT
, 0, 0);
3668 add_prefix (&include_prefixes
, value
, NULL
,
3669 PREFIX_PRIORITY_B_OPT
, 0, 0);
3674 case 'v': /* Print our subcommands and print versions. */
3676 /* If they do anything other than exactly `-v', don't set
3677 verbose_flag; rather, continue on to give the error. */
3694 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3699 /* Forward scan, just in case -S or -c is specified
3706 if (argv
[j
][0] == '-')
3708 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3714 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3715 j
+= skip
- (argv
[j
][2] != 0);
3716 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3723 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3725 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3727 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3734 #ifdef MODIFY_TARGET_NAME
3735 is_modify_target_name
= 0;
3737 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3738 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3740 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3741 + strlen (spec_machine
));
3744 int made_addition
= 0;
3746 is_modify_target_name
= 1;
3747 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3749 if (modify_target
[j
].add_del
== DELETE
3750 && (! strncmp (q
, modify_target
[j
].str
,
3751 strlen (modify_target
[j
].str
))))
3752 p
+= strlen (modify_target
[j
].str
);
3753 else if (modify_target
[j
].add_del
== ADD
3754 && ! made_addition
&& *p
== '-')
3756 for (r
= modify_target
[j
].str
; *r
!= 0; )
3764 spec_machine
= new_name
;
3767 if (is_modify_target_name
)
3773 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3774 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3775 else if (WORD_SWITCH_TAKES_ARG (p
))
3776 i
+= WORD_SWITCH_TAKES_ARG (p
);
3786 if (save_temps_flag
&& use_pipes
)
3788 /* -save-temps overrides -pipe, so that temp files are produced */
3789 if (save_temps_flag
)
3790 error ("warning: -pipe ignored because -save-temps specified");
3794 /* Set up the search paths before we go looking for config files. */
3796 /* These come before the md prefixes so that we will find gcc's subcommands
3797 (such as cpp) rather than those of the host system. */
3798 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3799 as well as trying the machine and the version. */
3801 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3802 PREFIX_PRIORITY_LAST
, 1, 0);
3803 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3804 PREFIX_PRIORITY_LAST
, 2, 0);
3805 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3806 PREFIX_PRIORITY_LAST
, 2, 0);
3807 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3808 PREFIX_PRIORITY_LAST
, 2, 0);
3809 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3810 PREFIX_PRIORITY_LAST
, 2, 0);
3813 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3814 PREFIX_PRIORITY_LAST
, 1, 0);
3815 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3816 PREFIX_PRIORITY_LAST
, 1, 0);
3818 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3819 dir_separator_str
, NULL
);
3821 /* If tooldir is relative, base it on exec_prefixes. A relative
3822 tooldir lets us move the installed tree as a unit.
3824 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3825 directories, so that we can search both the user specified directory
3826 and the standard place. */
3828 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3830 if (gcc_exec_prefix
)
3832 char *gcc_exec_tooldir_prefix
3833 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3834 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3836 add_prefix (&exec_prefixes
,
3837 concat (gcc_exec_tooldir_prefix
, "bin",
3838 dir_separator_str
, NULL
),
3839 NULL
, PREFIX_PRIORITY_LAST
, 0, 0);
3840 add_prefix (&startfile_prefixes
,
3841 concat (gcc_exec_tooldir_prefix
, "lib",
3842 dir_separator_str
, NULL
),
3843 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
3846 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3847 dir_separator_str
, spec_version
,
3848 dir_separator_str
, tooldir_prefix
, NULL
);
3851 add_prefix (&exec_prefixes
,
3852 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3853 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3854 add_prefix (&startfile_prefixes
,
3855 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3856 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3858 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3859 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3860 then consider it to relocate with the rest of the GCC installation
3861 if GCC_EXEC_PREFIX is set.
3862 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3863 if (target_system_root
&& gcc_exec_prefix
)
3865 char *tmp_prefix
= make_relative_prefix (argv
[0],
3866 standard_bindir_prefix
,
3867 target_system_root
);
3868 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3870 target_system_root
= tmp_prefix
;
3871 target_system_root_changed
= 1;
3876 /* More prefixes are enabled in main, after we read the specs file
3877 and determine whether this is cross-compilation or not. */
3879 /* Then create the space for the vectors and scan again. */
3881 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3882 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3885 last_language_n_infiles
= -1;
3887 /* This, time, copy the text of each switch and store a pointer
3888 to the copy in the vector of switches.
3889 Store all the infiles in their vector. */
3891 for (i
= 1; i
< argc
; i
++)
3893 /* Just skip the switches that were handled by the preceding loop. */
3894 #ifdef MODIFY_TARGET_NAME
3895 is_modify_target_name
= 0;
3897 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3898 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3899 is_modify_target_name
= 1;
3901 if (is_modify_target_name
)
3905 if (! strncmp (argv
[i
], "-Wa,", 4))
3907 else if (! strncmp (argv
[i
], "-Wp,", 4))
3909 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3911 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3913 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3915 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3917 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3919 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3921 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3923 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3925 else if (! strcmp (argv
[i
], "-ftarget-help"))
3927 else if (! strcmp (argv
[i
], "-fhelp"))
3929 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3931 /* Compensate for the +e options to the C++ front-end;
3932 they're there simply for cfront call-compatibility. We do
3933 some magic in default_compilers to pass them down properly.
3934 Note we deliberately start at the `+' here, to avoid passing
3935 -e0 or -e1 down into the linker. */
3936 switches
[n_switches
].part1
= &argv
[i
][0];
3937 switches
[n_switches
].args
= 0;
3938 switches
[n_switches
].live_cond
= SWITCH_OK
;
3939 switches
[n_switches
].validated
= 0;
3942 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3945 /* Split the argument at commas. */
3947 for (j
= 4; argv
[i
][j
]; j
++)
3948 if (argv
[i
][j
] == ',')
3950 infiles
[n_infiles
].language
= "*";
3951 infiles
[n_infiles
++].name
3952 = save_string (argv
[i
] + prev
, j
- prev
);
3955 /* Record the part after the last comma. */
3956 infiles
[n_infiles
].language
= "*";
3957 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3959 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3961 infiles
[n_infiles
].language
= "*";
3962 infiles
[n_infiles
++].name
= argv
[++i
];
3964 /* Xassembler and Xpreprocessor were already handled in the first argv
3965 scan, so all we need to do here is ignore them and their argument. */
3966 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3968 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3970 else if (strcmp (argv
[i
], "-l") == 0)
3971 { /* POSIX allows separation of -l and the lib arg;
3972 canonicalize by concatenating -l with its arg */
3973 infiles
[n_infiles
].language
= "*";
3974 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3976 else if (strncmp (argv
[i
], "-l", 2) == 0)
3978 infiles
[n_infiles
].language
= "*";
3979 infiles
[n_infiles
++].name
= argv
[i
];
3981 else if (strcmp (argv
[i
], "-specs") == 0)
3983 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3985 else if (strcmp (argv
[i
], "-time") == 0)
3987 else if (strcmp (argv
[i
], "-###") == 0)
3989 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3991 const char *p
= &argv
[i
][1];
3996 if (p
[1] == 0 && i
+ 1 == argc
)
3997 fatal ("argument to '-x' is missing");
3999 spec_lang
= argv
[++i
];
4002 if (! strcmp (spec_lang
, "none"))
4003 /* Suppress the warning if -xnone comes after the last input
4004 file, because alternate command interfaces like g++ might
4005 find it useful to place -xnone after each input file. */
4008 last_language_n_infiles
= n_infiles
;
4011 switches
[n_switches
].part1
= p
;
4012 /* Deal with option arguments in separate argv elements. */
4013 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4014 || WORD_SWITCH_TAKES_ARG (p
))
4017 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4021 /* Count only the option arguments in separate argv elements. */
4022 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4024 if (i
+ n_args
>= argc
)
4025 fatal ("argument to '-%s' is missing", p
);
4026 switches
[n_switches
].args
4027 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4029 switches
[n_switches
].args
[j
++] = argv
[++i
];
4030 /* Null-terminate the vector. */
4031 switches
[n_switches
].args
[j
] = 0;
4033 else if (strchr (switches_need_spaces
, c
))
4035 /* On some systems, ld cannot handle some options without
4036 a space. So split the option from its argument. */
4037 char *part1
= xmalloc (2);
4041 switches
[n_switches
].part1
= part1
;
4042 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4043 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4044 switches
[n_switches
].args
[1] = 0;
4047 switches
[n_switches
].args
= 0;
4049 switches
[n_switches
].live_cond
= SWITCH_OK
;
4050 switches
[n_switches
].validated
= 0;
4051 switches
[n_switches
].ordering
= 0;
4052 /* These are always valid, since gcc.c itself understands them. */
4053 if (!strcmp (p
, "save-temps")
4054 || !strcmp (p
, "static-libgcc")
4055 || !strcmp (p
, "shared-libgcc")
4056 || !strcmp (p
, "pipe"))
4057 switches
[n_switches
].validated
= 1;
4060 char ch
= switches
[n_switches
].part1
[0];
4062 switches
[n_switches
].validated
= 1;
4068 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4069 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4072 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4074 perror_with_name (argv
[i
]);
4079 infiles
[n_infiles
].language
= spec_lang
;
4080 infiles
[n_infiles
++].name
= argv
[i
];
4085 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4086 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4088 /* Ensure we only invoke each subprocess once. */
4089 if (target_help_flag
|| print_help_list
)
4093 /* Create a dummy input file, so that we can pass --target-help on to
4094 the various sub-processes. */
4095 infiles
[0].language
= "c";
4096 infiles
[0].name
= "help-dummy";
4098 if (target_help_flag
)
4100 switches
[n_switches
].part1
= "--target-help";
4101 switches
[n_switches
].args
= 0;
4102 switches
[n_switches
].live_cond
= SWITCH_OK
;
4103 switches
[n_switches
].validated
= 0;
4108 if (print_help_list
)
4110 switches
[n_switches
].part1
= "--help";
4111 switches
[n_switches
].args
= 0;
4112 switches
[n_switches
].live_cond
= SWITCH_OK
;
4113 switches
[n_switches
].validated
= 0;
4119 switches
[n_switches
].part1
= 0;
4120 infiles
[n_infiles
].name
= 0;
4123 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4124 and place that in the environment. */
4127 set_collect_gcc_options (void)
4132 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4134 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4135 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4138 for (i
= 0; (int) i
< n_switches
; i
++)
4140 const char *const *args
;
4143 obstack_grow (&collect_obstack
, " ", 1);
4147 /* Ignore elided switches. */
4148 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4151 obstack_grow (&collect_obstack
, "'-", 2);
4152 q
= switches
[i
].part1
;
4153 while ((p
= strchr (q
, '\'')))
4155 obstack_grow (&collect_obstack
, q
, p
- q
);
4156 obstack_grow (&collect_obstack
, "'\\''", 4);
4159 obstack_grow (&collect_obstack
, q
, strlen (q
));
4160 obstack_grow (&collect_obstack
, "'", 1);
4162 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4164 obstack_grow (&collect_obstack
, " '", 2);
4166 while ((p
= strchr (q
, '\'')))
4168 obstack_grow (&collect_obstack
, q
, p
- q
);
4169 obstack_grow (&collect_obstack
, "'\\''", 4);
4172 obstack_grow (&collect_obstack
, q
, strlen (q
));
4173 obstack_grow (&collect_obstack
, "'", 1);
4176 obstack_grow (&collect_obstack
, "\0", 1);
4177 putenv (XOBFINISH (&collect_obstack
, char *));
4180 /* Process a spec string, accumulating and running commands. */
4182 /* These variables describe the input file name.
4183 input_file_number is the index on outfiles of this file,
4184 so that the output file name can be stored for later use by %o.
4185 input_basename is the start of the part of the input file
4186 sans all directory names, and basename_length is the number
4187 of characters starting there excluding the suffix .c or whatever. */
4189 static const char *input_filename
;
4190 static int input_file_number
;
4191 size_t input_filename_length
;
4192 static int basename_length
;
4193 static int suffixed_basename_length
;
4194 static const char *input_basename
;
4195 static const char *input_suffix
;
4196 #ifndef HOST_LACKS_INODE_NUMBERS
4197 static struct stat input_stat
;
4199 static int input_stat_set
;
4201 /* The compiler used to process the current input file. */
4202 static struct compiler
*input_file_compiler
;
4204 /* These are variables used within do_spec and do_spec_1. */
4206 /* Nonzero if an arg has been started and not yet terminated
4207 (with space, tab or newline). */
4208 static int arg_going
;
4210 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4211 is a temporary file name. */
4212 static int delete_this_arg
;
4214 /* Nonzero means %w has been seen; the next arg to be terminated
4215 is the output file name of this compilation. */
4216 static int this_is_output_file
;
4218 /* Nonzero means %s has been seen; the next arg to be terminated
4219 is the name of a library file and we should try the standard
4220 search dirs for it. */
4221 static int this_is_library_file
;
4223 /* Nonzero means that the input of this command is coming from a pipe. */
4224 static int input_from_pipe
;
4226 /* Nonnull means substitute this for any suffix when outputting a switches
4228 static const char *suffix_subst
;
4230 /* Process the spec SPEC and run the commands specified therein.
4231 Returns 0 if the spec is successfully processed; -1 if failed. */
4234 do_spec (const char *spec
)
4238 value
= do_spec_2 (spec
);
4240 /* Force out any unfinished command.
4241 If -pipe, this forces out the last command if it ended in `|'. */
4244 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4247 set_collect_gcc_options ();
4249 if (argbuf_index
> 0)
4257 do_spec_2 (const char *spec
)
4264 delete_this_arg
= 0;
4265 this_is_output_file
= 0;
4266 this_is_library_file
= 0;
4267 input_from_pipe
= 0;
4268 suffix_subst
= NULL
;
4270 result
= do_spec_1 (spec
, 0, NULL
);
4272 /* End any pending argument. */
4275 obstack_1grow (&obstack
, 0);
4276 string
= XOBFINISH (&obstack
, const char *);
4277 if (this_is_library_file
)
4278 string
= find_file (string
);
4279 store_arg (string
, delete_this_arg
, this_is_output_file
);
4280 if (this_is_output_file
)
4281 outfiles
[input_file_number
] = string
;
4289 /* Process the given spec string and add any new options to the end
4290 of the switches/n_switches array. */
4293 do_option_spec (const char *name
, const char *spec
)
4295 unsigned int i
, value_count
, value_len
;
4296 const char *p
, *q
, *value
;
4297 char *tmp_spec
, *tmp_spec_p
;
4299 if (configure_default_options
[0].name
== NULL
)
4302 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4303 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4305 if (i
== ARRAY_SIZE (configure_default_options
))
4308 value
= configure_default_options
[i
].value
;
4309 value_len
= strlen (value
);
4311 /* Compute the size of the final spec. */
4314 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4320 /* Replace each %(VALUE) by the specified value. */
4321 tmp_spec
= alloca (strlen (spec
) + 1
4322 + value_count
* (value_len
- strlen ("%(VALUE)")));
4323 tmp_spec_p
= tmp_spec
;
4325 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4327 memcpy (tmp_spec_p
, q
, p
- q
);
4328 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4329 memcpy (tmp_spec_p
, value
, value_len
);
4330 tmp_spec_p
+= value_len
;
4331 q
= p
+ strlen ("%(VALUE)");
4333 strcpy (tmp_spec_p
, q
);
4335 do_self_spec (tmp_spec
);
4338 /* Process the given spec string and add any new options to the end
4339 of the switches/n_switches array. */
4342 do_self_spec (const char *spec
)
4345 do_spec_1 (" ", 0, NULL
);
4347 if (argbuf_index
> 0)
4352 n_switches
+= argbuf_index
;
4353 switches
= xrealloc (switches
,
4354 sizeof (struct switchstr
) * (n_switches
+ 1));
4356 switches
[n_switches
] = switches
[first
];
4357 for (i
= 0; i
< argbuf_index
; i
++)
4359 struct switchstr
*sw
;
4361 /* Each switch should start with '-'. */
4362 if (argbuf
[i
][0] != '-')
4363 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4365 sw
= &switches
[i
+ first
];
4366 sw
->part1
= &argbuf
[i
][1];
4368 sw
->live_cond
= SWITCH_OK
;
4376 do_spec_path (struct prefix_list
*pl
, const char *option
,
4377 int omit_if_relative
, int separate_options
,
4379 const char *dir_for_machine_suffix
,
4380 const char *dir_for_no_suffix
)
4382 static size_t bufsize
= 0;
4383 static char *buffer
;
4385 bool multilib_p
= false;
4387 /* Used on systems which record the specified -L dirs
4388 and use them to search for dynamic linking. */
4389 /* Relative directories always come from -B,
4390 and it is better not to use them for searching
4391 at run time. In particular, stage1 loses. */
4392 if (omit_if_relative
4393 && !IS_ABSOLUTE_PATH (pl
->prefix
))
4396 /* Try subdirectory if there is one. */
4397 if (machine_suffix
&& dir_for_machine_suffix
)
4399 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4401 bufsize
= (strlen (pl
->prefix
)
4402 + strlen (machine_suffix
)) * 2 + 1;
4403 buffer
= xrealloc (buffer
, bufsize
);
4404 strcpy (buffer
, pl
->prefix
);
4405 strcat (buffer
, machine_suffix
);
4406 if (is_directory (buffer
, dir_for_machine_suffix
, 1))
4409 do_spec_1 (option
, separate_options
, NULL
);
4410 if (separate_options
)
4411 do_spec_1 (" ", 0, NULL
);
4412 do_spec_1 (buffer
, 1, NULL
);
4413 do_spec_1 (dir_for_machine_suffix
, 1, NULL
);
4414 /* Make this a separate argument. */
4415 do_spec_1 (" ", 0, NULL
);
4418 if (!pl
->require_machine_suffix
&& dir_for_no_suffix
)
4420 if (is_directory (pl
->prefix
, dir_for_no_suffix
, 1))
4423 do_spec_1 (option
, separate_options
, NULL
);
4424 if (separate_options
)
4425 do_spec_1 (" ", 0, NULL
);
4426 do_spec_1 (pl
->prefix
, 1, NULL
);
4427 do_spec_1 (dir_for_no_suffix
, 1, NULL
);
4428 /* Make this a separate argument. */
4429 do_spec_1 (" ", 0, NULL
);
4433 if (only_subdir
|| multilib_p
)
4438 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4440 do_spec_1 (option
, separate_options
, NULL
);
4441 if (separate_options
)
4442 do_spec_1 (" ", 0, NULL
);
4443 do_spec_1 (pl
->prefix
, 1, NULL
);
4444 /* Remove slash from machine_suffix. */
4445 if (strlen (machine_suffix
) >= bufsize
)
4446 bufsize
= strlen (machine_suffix
) * 2 + 1;
4447 buffer
= xrealloc (buffer
, bufsize
);
4448 strcpy (buffer
, machine_suffix
);
4449 idx
= strlen (buffer
);
4450 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4451 buffer
[idx
- 1] = 0;
4452 do_spec_1 (buffer
, 1, NULL
);
4453 /* Make this a separate argument. */
4454 do_spec_1 (" ", 0, NULL
);
4457 if (!pl
->require_machine_suffix
)
4459 if (is_directory (pl
->prefix
, "", 1))
4461 do_spec_1 (option
, separate_options
, NULL
);
4462 if (separate_options
)
4463 do_spec_1 (" ", 0, NULL
);
4464 /* Remove slash from pl->prefix. */
4465 if (strlen (pl
->prefix
) >= bufsize
)
4466 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4467 buffer
= xrealloc (buffer
, bufsize
);
4468 strcpy (buffer
, pl
->prefix
);
4469 idx
= strlen (buffer
);
4470 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4471 buffer
[idx
- 1] = 0;
4472 do_spec_1 (buffer
, 1, NULL
);
4473 /* Make this a separate argument. */
4474 do_spec_1 (" ", 0, NULL
);
4479 /* Process the sub-spec SPEC as a portion of a larger spec.
4480 This is like processing a whole spec except that we do
4481 not initialize at the beginning and we do not supply a
4482 newline by default at the end.
4483 INSWITCH nonzero means don't process %-sequences in SPEC;
4484 in this case, % is treated as an ordinary character.
4485 This is used while substituting switches.
4486 INSWITCH nonzero also causes SPC not to terminate an argument.
4488 Value is zero unless a line was finished
4489 and the command on that line reported an error. */
4492 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4494 const char *p
= spec
;
4501 /* If substituting a switch, treat all chars like letters.
4502 Otherwise, NL, SPC, TAB and % are special. */
4503 switch (inswitch
? 'a' : c
)
4506 /* End of line: finish any pending argument,
4507 then run the pending command if one has been started. */
4510 obstack_1grow (&obstack
, 0);
4511 string
= XOBFINISH (&obstack
, const char *);
4512 if (this_is_library_file
)
4513 string
= find_file (string
);
4514 store_arg (string
, delete_this_arg
, this_is_output_file
);
4515 if (this_is_output_file
)
4516 outfiles
[input_file_number
] = string
;
4520 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4522 /* A `|' before the newline means use a pipe here,
4523 but only if -pipe was specified.
4524 Otherwise, execute now and don't pass the `|' as an arg. */
4527 input_from_pipe
= 1;
4534 set_collect_gcc_options ();
4536 if (argbuf_index
> 0)
4542 /* Reinitialize for a new command, and for a new argument. */
4545 delete_this_arg
= 0;
4546 this_is_output_file
= 0;
4547 this_is_library_file
= 0;
4548 input_from_pipe
= 0;
4552 /* End any pending argument. */
4555 obstack_1grow (&obstack
, 0);
4556 string
= XOBFINISH (&obstack
, const char *);
4557 if (this_is_library_file
)
4558 string
= find_file (string
);
4559 store_arg (string
, delete_this_arg
, this_is_output_file
);
4560 if (this_is_output_file
)
4561 outfiles
[input_file_number
] = string
;
4565 obstack_1grow (&obstack
, c
);
4571 /* Space or tab ends an argument if one is pending. */
4574 obstack_1grow (&obstack
, 0);
4575 string
= XOBFINISH (&obstack
, const char *);
4576 if (this_is_library_file
)
4577 string
= find_file (string
);
4578 store_arg (string
, delete_this_arg
, this_is_output_file
);
4579 if (this_is_output_file
)
4580 outfiles
[input_file_number
] = string
;
4582 /* Reinitialize for a new argument. */
4584 delete_this_arg
= 0;
4585 this_is_output_file
= 0;
4586 this_is_library_file
= 0;
4593 fatal ("spec '%s' invalid", spec
);
4596 obstack_grow (&obstack
, input_basename
, basename_length
);
4601 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4606 delete_this_arg
= 2;
4609 /* Dump out the directories specified with LIBRARY_PATH,
4610 followed by the absolute directories
4611 that we search for startfiles. */
4614 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4616 for (; pl
; pl
= pl
->next
)
4618 const char *no_suffix_multilib_dir
;
4620 no_suffix_multilib_dir
= pl
->os_multilib
? multilib_os_dir
4622 /* Do not separate options, include non-multilibbed variant. */
4623 do_spec_path (pl
, "-L",
4624 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4629 0, 0, multilib_dir
, no_suffix_multilib_dir
);
4635 /* %efoo means report an error with `foo' as error message
4636 and don't execute any more commands for this file. */
4640 while (*p
!= 0 && *p
!= '\n')
4642 buf
= alloca (p
- q
+ 1);
4643 strncpy (buf
, q
, p
- q
);
4650 /* %nfoo means report a notice with `foo' on stderr. */
4654 while (*p
!= 0 && *p
!= '\n')
4656 buf
= alloca (p
- q
+ 1);
4657 strncpy (buf
, q
, p
- q
);
4659 notice ("%s\n", buf
);
4669 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4670 defined, and it is not a directory, and it is
4671 writable, use it. Otherwise, treat this like any
4672 other temporary file. */
4674 if ((!save_temps_flag
)
4675 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4676 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4678 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4679 strlen (HOST_BIT_BUCKET
));
4680 delete_this_arg
= 0;
4685 goto create_temp_file
;
4689 obstack_1grow (&obstack
, '-');
4690 delete_this_arg
= 0;
4693 /* consume suffix */
4694 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4696 if (p
[0] == '%' && p
[1] == 'O')
4701 goto create_temp_file
;
4705 /* consume suffix */
4706 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4708 if (p
[0] == '%' && p
[1] == 'O')
4713 goto create_temp_file
;
4719 struct temp_name
*t
;
4721 const char *suffix
= p
;
4722 char *saved_suffix
= NULL
;
4724 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4726 suffix_length
= p
- suffix
;
4727 if (p
[0] == '%' && p
[1] == 'O')
4730 /* We don't support extra suffix characters after %O. */
4731 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4732 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4733 if (suffix_length
== 0)
4734 suffix
= TARGET_OBJECT_SUFFIX
;
4738 = xmalloc (suffix_length
4739 + strlen (TARGET_OBJECT_SUFFIX
));
4740 strncpy (saved_suffix
, suffix
, suffix_length
);
4741 strcpy (saved_suffix
+ suffix_length
,
4742 TARGET_OBJECT_SUFFIX
);
4744 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4747 /* If the input_filename has the same suffix specified
4748 for the %g, %u, or %U, and -save-temps is specified,
4749 we could end up using that file as an intermediate
4750 thus clobbering the user's source file (.e.g.,
4751 gcc -save-temps foo.s would clobber foo.s with the
4752 output of cpp0). So check for this condition and
4753 generate a temp file as the intermediate. */
4755 if (save_temps_flag
)
4757 temp_filename_length
= basename_length
+ suffix_length
;
4758 temp_filename
= alloca (temp_filename_length
+ 1);
4759 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4760 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4762 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4763 if (strcmp (temp_filename
, input_filename
) != 0)
4765 #ifndef HOST_LACKS_INODE_NUMBERS
4766 struct stat st_temp
;
4768 /* Note, set_input() resets input_stat_set to 0. */
4769 if (input_stat_set
== 0)
4771 input_stat_set
= stat (input_filename
, &input_stat
);
4772 if (input_stat_set
>= 0)
4776 /* If we have the stat for the input_filename
4777 and we can do the stat for the temp_filename
4778 then the they could still refer to the same
4779 file if st_dev/st_ino's are the same. */
4780 if (input_stat_set
!= 1
4781 || stat (temp_filename
, &st_temp
) < 0
4782 || input_stat
.st_dev
!= st_temp
.st_dev
4783 || input_stat
.st_ino
!= st_temp
.st_ino
)
4785 /* Just compare canonical pathnames. */
4786 char* input_realname
= lrealpath (input_filename
);
4787 char* temp_realname
= lrealpath (temp_filename
);
4788 bool files_differ
= strcmp (input_realname
, temp_realname
);
4789 free (input_realname
);
4790 free (temp_realname
);
4794 temp_filename
= save_string (temp_filename
,
4795 temp_filename_length
+ 1);
4796 obstack_grow (&obstack
, temp_filename
,
4797 temp_filename_length
);
4799 delete_this_arg
= 0;
4805 /* See if we already have an association of %g/%u/%U and
4807 for (t
= temp_names
; t
; t
= t
->next
)
4808 if (t
->length
== suffix_length
4809 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4810 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4813 /* Make a new association if needed. %u and %j
4815 if (t
== 0 || c
== 'u' || c
== 'j')
4819 t
= xmalloc (sizeof (struct temp_name
));
4820 t
->next
= temp_names
;
4823 t
->length
= suffix_length
;
4826 t
->suffix
= saved_suffix
;
4827 saved_suffix
= NULL
;
4830 t
->suffix
= save_string (suffix
, suffix_length
);
4831 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4832 temp_filename
= make_temp_file (t
->suffix
);
4833 temp_filename_length
= strlen (temp_filename
);
4834 t
->filename
= temp_filename
;
4835 t
->filename_length
= temp_filename_length
;
4839 free (saved_suffix
);
4841 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4842 delete_this_arg
= 1;
4850 for (i
= 0; (int) i
< n_infiles
; i
++)
4851 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4852 if (infiles
[i
].incompiler
== input_file_compiler
)
4854 store_arg (infiles
[i
].name
, 0, 0);
4855 infiles
[i
].compiled
= true;
4860 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4867 struct prefix_list
*pl
= include_prefixes
.plist
;
4869 if (gcc_exec_prefix
)
4871 do_spec_1 ("-iprefix", 1, NULL
);
4872 /* Make this a separate argument. */
4873 do_spec_1 (" ", 0, NULL
);
4874 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4875 do_spec_1 (" ", 0, NULL
);
4878 if (target_system_root_changed
||
4879 (target_system_root
&& target_sysroot_hdrs_suffix
))
4881 do_spec_1 ("-isysroot", 1, NULL
);
4882 /* Make this a separate argument. */
4883 do_spec_1 (" ", 0, NULL
);
4884 do_spec_1 (target_system_root
, 1, NULL
);
4885 if (target_sysroot_hdrs_suffix
)
4886 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4887 do_spec_1 (" ", 0, NULL
);
4890 for (; pl
; pl
= pl
->next
)
4891 /* Separate options, don't include non-suffixed variant. */
4892 do_spec_path (pl
, "-isystem", 0, 1, 1, "include", "include");
4898 int max
= n_infiles
;
4899 max
+= lang_specific_extra_outfiles
;
4901 for (i
= 0; i
< max
; i
++)
4903 store_arg (outfiles
[i
], 0, 0);
4908 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4913 this_is_library_file
= 1;
4917 outfiles
[input_file_number
] = NULL
;
4921 this_is_output_file
= 1;
4926 int cur_index
= argbuf_index
;
4927 /* Handle the {...} following the %W. */
4929 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
4930 p
= handle_braces (p
+ 1);
4933 /* End any pending argument. */
4936 obstack_1grow (&obstack
, 0);
4937 string
= XOBFINISH (&obstack
, const char *);
4938 if (this_is_library_file
)
4939 string
= find_file (string
);
4940 store_arg (string
, delete_this_arg
, this_is_output_file
);
4941 if (this_is_output_file
)
4942 outfiles
[input_file_number
] = string
;
4945 /* If any args were output, mark the last one for deletion
4947 if (argbuf_index
!= cur_index
)
4948 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4952 /* %x{OPTION} records OPTION for %X to output. */
4958 /* Skip past the option value and make a copy. */
4960 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
4963 string
= save_string (p1
+ 1, p
- p1
- 2);
4965 /* See if we already recorded this option. */
4966 for (i
= 0; i
< n_linker_options
; i
++)
4967 if (! strcmp (string
, linker_options
[i
]))
4973 /* This option is new; add it. */
4974 add_linker_option (string
, strlen (string
));
4978 /* Dump out the options accumulated previously using %x. */
4980 for (i
= 0; i
< n_linker_options
; i
++)
4982 do_spec_1 (linker_options
[i
], 1, NULL
);
4983 /* Make each accumulated option a separate argument. */
4984 do_spec_1 (" ", 0, NULL
);
4988 /* Dump out the options accumulated previously using -Wa,. */
4990 for (i
= 0; i
< n_assembler_options
; i
++)
4992 do_spec_1 (assembler_options
[i
], 1, NULL
);
4993 /* Make each accumulated option a separate argument. */
4994 do_spec_1 (" ", 0, NULL
);
4998 /* Dump out the options accumulated previously using -Wp,. */
5000 for (i
= 0; i
< n_preprocessor_options
; i
++)
5002 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5003 /* Make each accumulated option a separate argument. */
5004 do_spec_1 (" ", 0, NULL
);
5008 /* Here are digits and numbers that just process
5009 a certain constant string as a spec. */
5012 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5018 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5024 value
= do_spec_1 (asm_spec
, 0, NULL
);
5030 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5037 const char *const spec
5038 = (input_file_compiler
->cpp_spec
5039 ? input_file_compiler
->cpp_spec
5041 value
= do_spec_1 (spec
, 0, NULL
);
5048 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5054 value
= do_spec_1 (link_spec
, 0, NULL
);
5060 value
= do_spec_1 (lib_spec
, 0, NULL
);
5066 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5072 /* We assume there is a directory
5073 separator at the end of this string. */
5074 if (target_system_root
)
5076 obstack_grow (&obstack
, target_system_root
,
5077 strlen (target_system_root
));
5078 if (target_sysroot_suffix
)
5079 obstack_grow (&obstack
, target_sysroot_suffix
,
5080 strlen (target_sysroot_suffix
));
5085 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5090 /* Here we define characters other than letters and digits. */
5093 p
= handle_braces (p
);
5099 p
= handle_spec_function (p
);
5105 obstack_1grow (&obstack
, '%');
5112 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5114 suffix_subst
= save_string (p
- 1, len
+ 1);
5119 /* Henceforth ignore the option(s) matching the pattern
5124 int have_wildcard
= 0;
5127 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5130 if (p
[len
-1] == '*')
5133 for (i
= 0; i
< n_switches
; i
++)
5134 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5135 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5137 switches
[i
].live_cond
= SWITCH_IGNORE
;
5138 switches
[i
].validated
= 1;
5146 if (soft_matched_part
)
5148 do_spec_1 (soft_matched_part
, 1, NULL
);
5149 do_spec_1 (" ", 0, NULL
);
5152 /* Catch the case where a spec string contains something like
5153 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5154 hand side of the :. */
5155 error ("spec failure: '%%*' has not been initialized by pattern match");
5158 /* Process a string found as the value of a spec given by name.
5159 This feature allows individual machine descriptions
5160 to add and use their own specs.
5161 %[...] modifies -D options the way %P does;
5162 %(...) uses the spec unmodified. */
5164 error ("warning: use of obsolete %%[ operator in specs");
5167 const char *name
= p
;
5168 struct spec_list
*sl
;
5171 /* The string after the S/P is the name of a spec that is to be
5173 while (*p
&& *p
!= ')' && *p
!= ']')
5176 /* See if it's in the list. */
5177 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5178 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5180 name
= *(sl
->ptr_spec
);
5182 notice ("Processing spec %c%s%c, which is '%s'\n",
5183 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5192 value
= do_spec_1 (name
, 0, NULL
);
5198 char *x
= alloca (strlen (name
) * 2 + 1);
5200 const char *y
= name
;
5203 /* Copy all of NAME into BUF, but put __ after
5204 every -D and at the end of each arg. */
5207 if (! strncmp (y
, "-D", 2))
5218 && (*y
== ' ' || *y
== '\t' || *y
== '='
5219 || *y
== '}' || *y
== 0))
5232 value
= do_spec_1 (buf
, 0, NULL
);
5238 /* Discard the closing paren or bracket. */
5245 error ("spec failure: unrecognized spec option '%c'", c
);
5251 /* Backslash: treat next character as ordinary. */
5256 /* Ordinary character: put it into the current argument. */
5257 obstack_1grow (&obstack
, c
);
5261 /* End of string. If we are processing a spec function, we need to
5262 end any pending argument. */
5263 if (processing_spec_function
&& arg_going
)
5265 obstack_1grow (&obstack
, 0);
5266 string
= XOBFINISH (&obstack
, const char *);
5267 if (this_is_library_file
)
5268 string
= find_file (string
);
5269 store_arg (string
, delete_this_arg
, this_is_output_file
);
5270 if (this_is_output_file
)
5271 outfiles
[input_file_number
] = string
;
5278 /* Look up a spec function. */
5280 static const struct spec_function
*
5281 lookup_spec_function (const char *name
)
5283 static const struct spec_function
* const spec_function_tables
[] =
5285 static_spec_functions
,
5286 lang_specific_spec_functions
,
5288 const struct spec_function
*sf
;
5291 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5293 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5294 if (strcmp (sf
->name
, name
) == 0)
5301 /* Evaluate a spec function. */
5304 eval_spec_function (const char *func
, const char *args
)
5306 const struct spec_function
*sf
;
5307 const char *funcval
;
5309 /* Saved spec processing context. */
5310 int save_argbuf_index
;
5311 int save_argbuf_length
;
5312 const char **save_argbuf
;
5315 int save_delete_this_arg
;
5316 int save_this_is_output_file
;
5317 int save_this_is_library_file
;
5318 int save_input_from_pipe
;
5319 const char *save_suffix_subst
;
5322 sf
= lookup_spec_function (func
);
5324 fatal ("unknown spec function '%s'", func
);
5326 /* Push the spec processing context. */
5327 save_argbuf_index
= argbuf_index
;
5328 save_argbuf_length
= argbuf_length
;
5329 save_argbuf
= argbuf
;
5331 save_arg_going
= arg_going
;
5332 save_delete_this_arg
= delete_this_arg
;
5333 save_this_is_output_file
= this_is_output_file
;
5334 save_this_is_library_file
= this_is_library_file
;
5335 save_input_from_pipe
= input_from_pipe
;
5336 save_suffix_subst
= suffix_subst
;
5338 /* Create a new spec processing context, and build the function
5342 if (do_spec_2 (args
) < 0)
5343 fatal ("error in args to spec function '%s'", func
);
5345 /* argbuf_index is an index for the next argument to be inserted, and
5346 so contains the count of the args already inserted. */
5348 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5350 /* Pop the spec processing context. */
5351 argbuf_index
= save_argbuf_index
;
5352 argbuf_length
= save_argbuf_length
;
5354 argbuf
= save_argbuf
;
5356 arg_going
= save_arg_going
;
5357 delete_this_arg
= save_delete_this_arg
;
5358 this_is_output_file
= save_this_is_output_file
;
5359 this_is_library_file
= save_this_is_library_file
;
5360 input_from_pipe
= save_input_from_pipe
;
5361 suffix_subst
= save_suffix_subst
;
5366 /* Handle a spec function call of the form:
5370 ARGS is processed as a spec in a separate context and split into an
5371 argument vector in the normal fashion. The function returns a string
5372 containing a spec which we then process in the caller's context, or
5373 NULL if no processing is required. */
5376 handle_spec_function (const char *p
)
5379 const char *endp
, *funcval
;
5382 processing_spec_function
++;
5384 /* Get the function name. */
5385 for (endp
= p
; *endp
!= '\0'; endp
++)
5387 if (*endp
== '(') /* ) */
5389 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5390 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5391 fatal ("malformed spec function name");
5393 if (*endp
!= '(') /* ) */
5394 fatal ("no arguments for spec function");
5395 func
= save_string (p
, endp
- p
);
5398 /* Get the arguments. */
5399 for (count
= 0; *endp
!= '\0'; endp
++)
5408 else if (*endp
== '(') /* ) */
5413 fatal ("malformed spec function arguments");
5414 args
= save_string (p
, endp
- p
);
5417 /* p now points to just past the end of the spec function expression. */
5419 funcval
= eval_spec_function (func
, args
);
5420 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5426 processing_spec_function
--;
5431 /* Inline subroutine of handle_braces. Returns true if the current
5432 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5434 input_suffix_matches (const char *atom
, const char *end_atom
)
5436 /* We special case the semantics of {.s:...} and {.S:...} and their
5437 negative variants. Instead of testing the input filename suffix,
5438 we test whether the input source file is an assembler file or an
5439 assembler-with-cpp file respectively. This allows us to correctly
5440 handle the -x command line option. */
5442 if (atom
+ 1 == end_atom
5443 && input_file_compiler
5444 && input_file_compiler
->suffix
)
5447 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5449 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5452 return (input_suffix
5453 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5454 && input_suffix
[end_atom
- atom
] == '\0');
5457 /* Inline subroutine of handle_braces. Returns true if a switch
5458 matching the atom bracketed by ATOM and END_ATOM appeared on the
5461 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5464 int len
= end_atom
- atom
;
5465 int plen
= starred
? len
: -1;
5467 for (i
= 0; i
< n_switches
; i
++)
5468 if (!strncmp (switches
[i
].part1
, atom
, len
)
5469 && (starred
|| switches
[i
].part1
[len
] == '\0')
5470 && check_live_switch (i
, plen
))
5476 /* Inline subroutine of handle_braces. Mark all of the switches which
5477 match ATOM (extends to END_ATOM; STARRED indicates whether there
5478 was a star after the atom) for later processing. */
5480 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5483 int len
= end_atom
- atom
;
5484 int plen
= starred
? len
: -1;
5486 for (i
= 0; i
< n_switches
; i
++)
5487 if (!strncmp (switches
[i
].part1
, atom
, len
)
5488 && (starred
|| switches
[i
].part1
[len
] == '\0')
5489 && check_live_switch (i
, plen
))
5490 switches
[i
].ordering
= 1;
5493 /* Inline subroutine of handle_braces. Process all the currently
5494 marked switches through give_switch, and clear the marks. */
5496 process_marked_switches (void)
5500 for (i
= 0; i
< n_switches
; i
++)
5501 if (switches
[i
].ordering
== 1)
5503 switches
[i
].ordering
= 0;
5508 /* Handle a %{ ... } construct. P points just inside the leading {.
5509 Returns a pointer one past the end of the brace block, or 0
5510 if we call do_spec_1 and that returns -1. */
5513 handle_braces (const char *p
)
5515 const char *atom
, *end_atom
;
5516 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5517 const char *orig
= p
;
5524 bool a_must_be_last
= false;
5525 bool ordered_set
= false;
5526 bool disjunct_set
= false;
5527 bool disj_matched
= false;
5528 bool disj_starred
= true;
5529 bool n_way_choice
= false;
5530 bool n_way_matched
= false;
5532 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5539 /* Scan one "atom" (S in the description above of %{}, possibly
5540 with !, ., or * modifiers). */
5541 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5545 p
++, a_is_negated
= true;
5549 p
++, a_is_suffix
= true;
5552 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5553 || *p
== ',' || *p
== '.' || *p
== '@')
5558 p
++, a_is_starred
= 1;
5564 /* Substitute the switch(es) indicated by the current atom. */
5566 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5567 || atom
== end_atom
)
5570 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5573 process_marked_switches ();
5577 /* Substitute some text if the current atom appears as a switch
5579 disjunct_set
= true;
5583 if (atom
== end_atom
)
5585 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5586 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5589 /* An empty term may appear as the last choice of an
5590 N-way choice set; it means "otherwise". */
5591 a_must_be_last
= true;
5592 disj_matched
= !n_way_matched
;
5593 disj_starred
= false;
5597 if (a_is_suffix
&& a_is_starred
)
5601 disj_starred
= false;
5603 /* Don't bother testing this atom if we already have a
5605 if (!disj_matched
&& !n_way_matched
)
5608 a_matched
= input_suffix_matches (atom
, end_atom
);
5610 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5612 if (a_matched
!= a_is_negated
)
5614 disj_matched
= true;
5616 d_end_atom
= end_atom
;
5623 /* Found the body, that is, the text to substitute if the
5624 current disjunction matches. */
5625 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5626 disj_matched
&& !n_way_matched
);
5630 /* If we have an N-way choice, reset state for the next
5634 n_way_choice
= true;
5635 n_way_matched
|= disj_matched
;
5636 disj_matched
= false;
5637 disj_starred
= true;
5638 d_atom
= d_end_atom
= NULL
;
5647 while (*p
++ != '}');
5652 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5657 /* Subroutine of handle_braces. Scan and process a brace substitution body
5658 (X in the description of %{} syntax). P points one past the colon;
5659 ATOM and END_ATOM bracket the first atom which was found to be true
5660 (present) in the current disjunction; STARRED indicates whether all
5661 the atoms in the current disjunction were starred (for syntax validation);
5662 MATCHED indicates whether the disjunction matched or not, and therefore
5663 whether or not the body is to be processed through do_spec_1 or just
5664 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5668 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5669 int starred
, int matched
)
5671 const char *body
, *end_body
;
5672 unsigned int nesting_level
;
5673 bool have_subst
= false;
5675 /* Locate the closing } or ;, honoring nested braces.
5676 Trim trailing whitespace. */
5685 if (!--nesting_level
)
5688 else if (*p
== ';' && nesting_level
== 1)
5690 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5692 else if (*p
== '\0')
5698 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5701 if (have_subst
&& !starred
)
5706 /* Copy the substitution body to permanent storage and execute it.
5707 If have_subst is false, this is a simple matter of running the
5708 body through do_spec_1... */
5709 char *string
= save_string (body
, end_body
- body
);
5712 if (do_spec_1 (string
, 0, NULL
) < 0)
5717 /* ... but if have_subst is true, we have to process the
5718 body once for each matching switch, with %* set to the
5719 variant part of the switch. */
5720 unsigned int hard_match_len
= end_atom
- atom
;
5723 for (i
= 0; i
< n_switches
; i
++)
5724 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5725 && check_live_switch (i
, hard_match_len
))
5727 if (do_spec_1 (string
, 0,
5728 &switches
[i
].part1
[hard_match_len
]) < 0)
5730 /* Pass any arguments this switch has. */
5732 suffix_subst
= NULL
;
5740 fatal ("braced spec body '%s' is invalid", body
);
5743 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5744 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5745 spec, or -1 if either exact match or %* is used.
5747 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5748 whose value does not begin with "no-" is obsoleted by the same value
5749 with the "no-", similarly for a switch with the "no-" prefix. */
5752 check_live_switch (int switchnum
, int prefix_length
)
5754 const char *name
= switches
[switchnum
].part1
;
5757 /* In the common case of {<at-most-one-letter>*}, a negating
5758 switch would always match, so ignore that case. We will just
5759 send the conflicting switches to the compiler phase. */
5760 if (prefix_length
>= 0 && prefix_length
<= 1)
5763 /* If we already processed this switch and determined if it was
5764 live or not, return our past determination. */
5765 if (switches
[switchnum
].live_cond
!= 0)
5766 return switches
[switchnum
].live_cond
> 0;
5768 /* Now search for duplicate in a manner that depends on the name. */
5772 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5773 if (switches
[i
].part1
[0] == 'O')
5775 switches
[switchnum
].validated
= 1;
5776 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5781 case 'W': case 'f': case 'm':
5782 if (! strncmp (name
+ 1, "no-", 3))
5784 /* We have Xno-YYY, search for XYYY. */
5785 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5786 if (switches
[i
].part1
[0] == name
[0]
5787 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5789 switches
[switchnum
].validated
= 1;
5790 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5796 /* We have XYYY, search for Xno-YYY. */
5797 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5798 if (switches
[i
].part1
[0] == name
[0]
5799 && switches
[i
].part1
[1] == 'n'
5800 && switches
[i
].part1
[2] == 'o'
5801 && switches
[i
].part1
[3] == '-'
5802 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5804 switches
[switchnum
].validated
= 1;
5805 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5812 /* Otherwise the switch is live. */
5813 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5817 /* Pass a switch to the current accumulating command
5818 in the same form that we received it.
5819 SWITCHNUM identifies the switch; it is an index into
5820 the vector of switches gcc received, which is `switches'.
5821 This cannot fail since it never finishes a command line.
5823 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5826 give_switch (int switchnum
, int omit_first_word
)
5828 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5831 if (!omit_first_word
)
5833 do_spec_1 ("-", 0, NULL
);
5834 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5837 if (switches
[switchnum
].args
!= 0)
5840 for (p
= switches
[switchnum
].args
; *p
; p
++)
5842 const char *arg
= *p
;
5844 do_spec_1 (" ", 0, NULL
);
5847 unsigned length
= strlen (arg
);
5850 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5851 if (arg
[length
] == '.')
5853 ((char *)arg
)[length
] = 0;
5857 do_spec_1 (arg
, 1, NULL
);
5859 ((char *)arg
)[length
] = '.';
5860 do_spec_1 (suffix_subst
, 1, NULL
);
5863 do_spec_1 (arg
, 1, NULL
);
5867 do_spec_1 (" ", 0, NULL
);
5868 switches
[switchnum
].validated
= 1;
5871 /* Search for a file named NAME trying various prefixes including the
5872 user's -B prefix and some standard ones.
5873 Return the absolute file name found. If nothing is found, return NAME. */
5876 find_file (const char *name
)
5880 /* Try multilib_dir if it is defined. */
5881 if (multilib_os_dir
!= NULL
)
5883 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5885 /* If we don't find it in the multi library dir, then fall
5886 through and look for it in the normal places. */
5887 if (newname
!= NULL
)
5891 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5892 return newname
? newname
: name
;
5895 /* Determine whether a directory exists. If LINKER, return 0 for
5896 certain fixed names not needed by the linker. If not LINKER, it is
5897 only important to return 0 if the host machine has a small ARG_MAX
5901 is_directory (const char *path1
, const char *path2
, int linker
)
5903 int len1
= strlen (path1
);
5904 int len2
= strlen (path2
);
5905 char *path
= alloca (3 + len1
+ len2
);
5909 #ifndef SMALL_ARG_MAX
5914 /* Construct the path from the two parts. Ensure the string ends with "/.".
5915 The resulting path will be a directory even if the given path is a
5917 memcpy (path
, path1
, len1
);
5918 memcpy (path
+ len1
, path2
, len2
);
5919 cp
= path
+ len1
+ len2
;
5920 if (!IS_DIR_SEPARATOR (cp
[-1]))
5921 *cp
++ = DIR_SEPARATOR
;
5925 /* Exclude directories that the linker is known to search. */
5928 && strcmp (path
, concat (dir_separator_str
, "lib",
5929 dir_separator_str
, ".", NULL
)) == 0)
5931 && strcmp (path
, concat (dir_separator_str
, "usr",
5932 dir_separator_str
, "lib",
5933 dir_separator_str
, ".", NULL
)) == 0)))
5936 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5939 /* Set up the various global variables to indicate that we're processing
5940 the input file named FILENAME. */
5943 set_input (const char *filename
)
5947 input_filename
= filename
;
5948 input_filename_length
= strlen (input_filename
);
5950 input_basename
= input_filename
;
5951 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5952 /* Skip drive name so 'x:foo' is handled properly. */
5953 if (input_basename
[1] == ':')
5954 input_basename
+= 2;
5956 for (p
= input_basename
; *p
; p
++)
5957 if (IS_DIR_SEPARATOR (*p
))
5958 input_basename
= p
+ 1;
5960 /* Find a suffix starting with the last period,
5961 and set basename_length to exclude that suffix. */
5962 basename_length
= strlen (input_basename
);
5963 suffixed_basename_length
= basename_length
;
5964 p
= input_basename
+ basename_length
;
5965 while (p
!= input_basename
&& *p
!= '.')
5967 if (*p
== '.' && p
!= input_basename
)
5969 basename_length
= p
- input_basename
;
5970 input_suffix
= p
+ 1;
5975 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5976 we will need to do a stat on the input_filename. The
5977 INPUT_STAT_SET signals that the stat is needed. */
5981 /* On fatal signals, delete all the temporary files. */
5984 fatal_error (int signum
)
5986 signal (signum
, SIG_DFL
);
5987 delete_failure_queue ();
5988 delete_temp_files ();
5989 /* Get the same signal again, this time not handled,
5990 so its normal effect occurs. */
5991 kill (getpid (), signum
);
5994 extern int main (int, const char **);
5997 main (int argc
, const char **argv
)
6001 int linker_was_run
= 0;
6002 int lang_n_infiles
= 0;
6003 int num_linker_inputs
= 0;
6004 char *explicit_link_files
;
6007 struct user_specs
*uptr
;
6009 p
= argv
[0] + strlen (argv
[0]);
6010 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6014 xmalloc_set_program_name (programname
);
6016 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6017 /* Perform host dependent initialization when needed. */
6018 GCC_DRIVER_HOST_INITIALIZATION
;
6021 /* Unlock the stdio streams. */
6022 unlock_std_streams ();
6024 gcc_init_libintl ();
6026 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6027 signal (SIGINT
, fatal_error
);
6029 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6030 signal (SIGHUP
, fatal_error
);
6032 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6033 signal (SIGTERM
, fatal_error
);
6035 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6036 signal (SIGPIPE
, fatal_error
);
6039 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6040 receive the signal. A different setting is inheritable */
6041 signal (SIGCHLD
, SIG_DFL
);
6044 /* Allocate the argument vector. */
6047 obstack_init (&obstack
);
6049 /* Build multilib_select, et. al from the separate lines that make up each
6050 multilib selection. */
6052 const char *const *q
= multilib_raw
;
6055 obstack_init (&multilib_obstack
);
6056 while ((p
= *q
++) != (char *) 0)
6057 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6059 obstack_1grow (&multilib_obstack
, 0);
6060 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6062 q
= multilib_matches_raw
;
6063 while ((p
= *q
++) != (char *) 0)
6064 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6066 obstack_1grow (&multilib_obstack
, 0);
6067 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6069 q
= multilib_exclusions_raw
;
6070 while ((p
= *q
++) != (char *) 0)
6071 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6073 obstack_1grow (&multilib_obstack
, 0);
6074 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6077 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6080 obstack_1grow (&multilib_obstack
, ' ');
6081 obstack_grow (&multilib_obstack
,
6082 multilib_defaults_raw
[i
],
6083 strlen (multilib_defaults_raw
[i
]));
6087 obstack_1grow (&multilib_obstack
, 0);
6088 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6091 /* Set up to remember the pathname of gcc and any options
6092 needed for collect. We use argv[0] instead of programname because
6093 we need the complete pathname. */
6094 obstack_init (&collect_obstack
);
6095 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6096 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6097 putenv (XOBFINISH (&collect_obstack
, char *));
6099 #ifdef INIT_ENVIRONMENT
6100 /* Set up any other necessary machine specific environment variables. */
6101 putenv (INIT_ENVIRONMENT
);
6104 /* Make a table of what switches there are (switches, n_switches).
6105 Make a table of specified input files (infiles, n_infiles).
6106 Decode switches that are handled locally. */
6108 process_command (argc
, argv
);
6110 /* Initialize the vector of specs to just the default.
6111 This means one element containing 0s, as a terminator. */
6113 compilers
= xmalloc (sizeof default_compilers
);
6114 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6115 n_compilers
= n_default_compilers
;
6117 /* Read specs from a file if there is one. */
6119 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6120 spec_version
, dir_separator_str
, NULL
);
6121 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6123 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6124 /* Read the specs file unless it is a default one. */
6125 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6126 read_specs (specs_file
, TRUE
);
6130 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6131 for any override of as, ld and libraries. */
6132 specs_file
= alloca (strlen (standard_exec_prefix
)
6133 + strlen (just_machine_suffix
) + sizeof ("specs"));
6135 strcpy (specs_file
, standard_exec_prefix
);
6136 strcat (specs_file
, just_machine_suffix
);
6137 strcat (specs_file
, "specs");
6138 if (access (specs_file
, R_OK
) == 0)
6139 read_specs (specs_file
, TRUE
);
6141 /* Process any configure-time defaults specified for the command line
6142 options, via OPTION_DEFAULT_SPECS. */
6143 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6144 do_option_spec (option_default_specs
[i
].name
,
6145 option_default_specs
[i
].spec
);
6147 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6148 of the command line. */
6150 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6151 do_self_spec (driver_self_specs
[i
]);
6153 /* If not cross-compiling, look for executables in the standard
6155 if (*cross_compile
== '0')
6157 if (*md_exec_prefix
)
6159 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6160 PREFIX_PRIORITY_LAST
, 0, 0);
6164 /* Process sysroot_suffix_spec. */
6165 if (*sysroot_suffix_spec
!= 0
6166 && do_spec_2 (sysroot_suffix_spec
) == 0)
6168 if (argbuf_index
> 1)
6169 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6170 else if (argbuf_index
== 1)
6171 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6174 #ifdef HAVE_LD_SYSROOT
6175 /* Pass the --sysroot option to the linker, if it supports that. If
6176 there is a sysroot_suffix_spec, it has already been processed by
6177 this point, so target_system_root really is the system root we
6179 if (target_system_root
)
6181 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6182 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6183 set_spec ("link", XOBFINISH (&obstack
, const char *));
6187 /* Process sysroot_hdrs_suffix_spec. */
6188 if (*sysroot_hdrs_suffix_spec
!= 0
6189 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6191 if (argbuf_index
> 1)
6192 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6193 else if (argbuf_index
== 1)
6194 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6197 /* Look for startfiles in the standard places. */
6198 if (*startfile_prefix_spec
!= 0
6199 && do_spec_2 (startfile_prefix_spec
) == 0
6200 && do_spec_1 (" ", 0, NULL
) == 0)
6203 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6204 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6205 PREFIX_PRIORITY_LAST
, 0, 1);
6207 /* We should eventually get rid of all these and stick to
6208 startfile_prefix_spec exclusively. */
6209 else if (*cross_compile
== '0' || target_system_root
)
6211 if (*md_startfile_prefix
)
6212 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6213 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6215 if (*md_startfile_prefix_1
)
6216 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6217 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6219 /* If standard_startfile_prefix is relative, base it on
6220 standard_exec_prefix. This lets us move the installed tree
6221 as a unit. If GCC_EXEC_PREFIX is defined, base
6222 standard_startfile_prefix on that as well.
6224 If the prefix is relative, only search it for native compilers;
6225 otherwise we will search a directory containing host libraries. */
6226 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6227 add_sysrooted_prefix (&startfile_prefixes
,
6228 standard_startfile_prefix
, "BINUTILS",
6229 PREFIX_PRIORITY_LAST
, 0, 1);
6230 else if (*cross_compile
== '0')
6232 if (gcc_exec_prefix
)
6233 add_prefix (&startfile_prefixes
,
6234 concat (gcc_exec_prefix
, machine_suffix
,
6235 standard_startfile_prefix
, NULL
),
6236 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6237 add_prefix (&startfile_prefixes
,
6238 concat (standard_exec_prefix
,
6240 standard_startfile_prefix
, NULL
),
6241 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6244 if (*standard_startfile_prefix_1
)
6245 add_sysrooted_prefix (&startfile_prefixes
,
6246 standard_startfile_prefix_1
, "BINUTILS",
6247 PREFIX_PRIORITY_LAST
, 0, 1);
6248 if (*standard_startfile_prefix_2
)
6249 add_sysrooted_prefix (&startfile_prefixes
,
6250 standard_startfile_prefix_2
, "BINUTILS",
6251 PREFIX_PRIORITY_LAST
, 0, 1);
6254 /* Process any user specified specs in the order given on the command
6256 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6258 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6260 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6263 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6264 if (gcc_exec_prefix
)
6265 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6266 spec_version
, dir_separator_str
, NULL
);
6268 /* Now we have the specs.
6269 Set the `valid' bits for switches that match anything in any spec. */
6271 validate_all_switches ();
6273 /* Now that we have the switches and the specs, set
6274 the subdirectory based on the options. */
6275 set_multilib_dir ();
6277 /* Warn about any switches that no pass was interested in. */
6279 for (i
= 0; (int) i
< n_switches
; i
++)
6280 if (! switches
[i
].validated
)
6281 error ("unrecognized option '-%s'", switches
[i
].part1
);
6283 /* Obey some of the options. */
6285 if (print_search_dirs
)
6287 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6288 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6289 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6293 if (print_file_name
)
6295 printf ("%s\n", find_file (print_file_name
));
6299 if (print_prog_name
)
6301 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6302 printf ("%s\n", (newname
? newname
: print_prog_name
));
6306 if (print_multi_lib
)
6308 print_multilib_info ();
6312 if (print_multi_directory
)
6314 if (multilib_dir
== NULL
)
6317 printf ("%s\n", multilib_dir
);
6321 if (print_multi_os_directory
)
6323 if (multilib_os_dir
== NULL
)
6326 printf ("%s\n", multilib_os_dir
);
6330 if (target_help_flag
)
6332 /* Print if any target specific options. */
6334 /* We do not exit here. Instead we have created a fake input file
6335 called 'target-dummy' which needs to be compiled, and we pass this
6336 on to the various sub-processes, along with the --target-help
6340 if (print_help_list
)
6346 printf (_("\nFor bug reporting instructions, please see:\n"));
6347 printf ("%s.\n", bug_report_url
);
6352 /* We do not exit here. Instead we have created a fake input file
6353 called 'help-dummy' which needs to be compiled, and we pass this
6354 on the various sub-processes, along with the --help switch. */
6362 notice ("Target: %s\n", spec_machine
);
6363 notice ("Configured with: %s\n", configuration_arguments
);
6365 #ifdef THREAD_MODEL_SPEC
6366 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6367 but there's no point in doing all this processing just to get
6368 thread_model back. */
6369 obstack_init (&obstack
);
6370 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6371 obstack_1grow (&obstack
, '\0');
6372 thrmod
= XOBFINISH (&obstack
, const char *);
6374 thrmod
= thread_model
;
6377 notice ("Thread model: %s\n", thrmod
);
6379 /* compiler_version is truncated at the first space when initialized
6380 from version string, so truncate version_string at the first space
6381 before comparing. */
6382 for (n
= 0; version_string
[n
]; n
++)
6383 if (version_string
[n
] == ' ')
6386 if (! strncmp (version_string
, compiler_version
, n
)
6387 && compiler_version
[n
] == 0)
6388 notice ("gcc version %s\n", version_string
);
6390 notice ("gcc driver version %s executing gcc version %s\n",
6391 version_string
, compiler_version
);
6397 if (n_infiles
== added_libraries
)
6398 fatal ("no input files");
6400 /* Make a place to record the compiler output file names
6401 that correspond to the input files. */
6404 i
+= lang_specific_extra_outfiles
;
6405 outfiles
= xcalloc (i
, sizeof (char *));
6407 /* Record which files were specified explicitly as link input. */
6409 explicit_link_files
= xcalloc (1, n_infiles
);
6412 combine_inputs
= true;
6414 combine_inputs
= false;
6416 for (i
= 0; (int) i
< n_infiles
; i
++)
6418 const char *name
= infiles
[i
].name
;
6419 struct compiler
*compiler
= lookup_compiler (name
,
6421 infiles
[i
].language
);
6423 if (compiler
&& !(compiler
->combinable
))
6424 combine_inputs
= false;
6426 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6427 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6428 infiles
[i
].incompiler
= compiler
;
6432 input_file_compiler
= compiler
;
6433 infiles
[i
].incompiler
= compiler
;
6437 /* Since there is no compiler for this input file, assume it is a
6439 explicit_link_files
[i
] = 1;
6440 infiles
[i
].incompiler
= NULL
;
6442 infiles
[i
].compiled
= false;
6443 infiles
[i
].preprocessed
= false;
6446 if (combine_flag
&& save_temps_flag
)
6448 bool save_combine_inputs
= combine_inputs
;
6449 /* Must do a separate pre-processing pass for C & Objective-C files, to
6450 obtain individual .i files. */
6452 combine_inputs
= false;
6453 for (i
= 0; (int) i
< n_infiles
; i
++)
6455 int this_file_error
= 0;
6457 input_file_number
= i
;
6458 set_input (infiles
[i
].name
);
6459 if (infiles
[i
].incompiler
6460 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6461 input_file_compiler
= infiles
[i
].incompiler
;
6465 if (input_file_compiler
)
6467 if (input_file_compiler
->spec
[0] == '#')
6469 error ("%s: %s compiler not installed on this system",
6470 input_filename
, &input_file_compiler
->spec
[1]);
6471 this_file_error
= 1;
6475 value
= do_spec (input_file_compiler
->spec
);
6476 infiles
[i
].preprocessed
= true;
6477 if (!have_o_argbuf_index
)
6478 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6479 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6480 infiles
[i
].incompiler
6481 = lookup_compiler (infiles
[i
].name
,
6482 strlen (infiles
[i
].name
),
6483 infiles
[i
].language
);
6486 this_file_error
= 1;
6490 if (this_file_error
)
6492 delete_failure_queue ();
6496 clear_failure_queue ();
6498 combine_inputs
= save_combine_inputs
;
6501 for (i
= 0; (int) i
< n_infiles
; i
++)
6503 int this_file_error
= 0;
6505 /* Tell do_spec what to substitute for %i. */
6507 input_file_number
= i
;
6508 set_input (infiles
[i
].name
);
6510 if (infiles
[i
].compiled
)
6513 /* Use the same thing in %o, unless cp->spec says otherwise. */
6515 outfiles
[i
] = input_filename
;
6517 /* Figure out which compiler from the file's suffix. */
6519 if (! combine_inputs
)
6521 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6522 infiles
[i
].language
);
6524 input_file_compiler
= infiles
[i
].incompiler
;
6526 if (input_file_compiler
)
6528 /* Ok, we found an applicable compiler. Run its spec. */
6530 if (input_file_compiler
->spec
[0] == '#')
6532 error ("%s: %s compiler not installed on this system",
6533 input_filename
, &input_file_compiler
->spec
[1]);
6534 this_file_error
= 1;
6538 value
= do_spec (input_file_compiler
->spec
);
6539 infiles
[i
].compiled
= true;
6541 this_file_error
= 1;
6545 /* If this file's name does not contain a recognized suffix,
6546 record it as explicit linker input. */
6549 explicit_link_files
[i
] = 1;
6551 /* Clear the delete-on-failure queue, deleting the files in it
6552 if this compilation failed. */
6554 if (this_file_error
)
6556 delete_failure_queue ();
6559 /* If this compilation succeeded, don't delete those files later. */
6560 clear_failure_queue ();
6563 /* Reset the input file name to the first compile/object file name, for use
6564 with %b in LINK_SPEC. We use the first input file that we can find
6565 a compiler to compile it instead of using infiles.language since for
6566 languages other than C we use aliases that we then lookup later. */
6571 for (i
= 0; i
< n_infiles
; i
++)
6572 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6574 set_input (infiles
[i
].name
);
6579 if (error_count
== 0)
6581 /* Make sure INPUT_FILE_NUMBER points to first available open
6583 input_file_number
= n_infiles
;
6584 if (lang_specific_pre_link ())
6588 /* Determine if there are any linker input files. */
6589 num_linker_inputs
= 0;
6590 for (i
= 0; (int) i
< n_infiles
; i
++)
6591 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6592 num_linker_inputs
++;
6594 /* Run ld to link all the compiler output files. */
6596 if (num_linker_inputs
> 0 && error_count
== 0)
6598 int tmp
= execution_count
;
6600 /* We'll use ld if we can't find collect2. */
6601 if (! strcmp (linker_name_spec
, "collect2"))
6603 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6605 linker_name_spec
= "ld";
6607 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6609 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6610 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6612 value
= do_spec (link_command_spec
);
6615 linker_was_run
= (tmp
!= execution_count
);
6618 /* If options said don't run linker,
6619 complain about input files to be given to the linker. */
6621 if (! linker_was_run
&& error_count
== 0)
6622 for (i
= 0; (int) i
< n_infiles
; i
++)
6623 if (explicit_link_files
[i
])
6624 error ("%s: linker input file unused because linking not done",
6627 /* Delete some or all of the temporary files we made. */
6630 delete_failure_queue ();
6631 delete_temp_files ();
6633 if (print_help_list
)
6635 printf (("\nFor bug reporting instructions, please see:\n"));
6636 printf ("%s\n", bug_report_url
);
6639 return (signal_count
!= 0 ? 2
6640 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6644 /* Find the proper compilation spec for the file name NAME,
6645 whose length is LENGTH. LANGUAGE is the specified language,
6646 or 0 if this file is to be passed to the linker. */
6648 static struct compiler
*
6649 lookup_compiler (const char *name
, size_t length
, const char *language
)
6651 struct compiler
*cp
;
6653 /* If this was specified by the user to be a linker input, indicate that. */
6654 if (language
!= 0 && language
[0] == '*')
6657 /* Otherwise, look for the language, if one is spec'd. */
6660 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6661 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6664 error ("language %s not recognized", language
);
6668 /* Look for a suffix. */
6669 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6671 if (/* The suffix `-' matches only the file name `-'. */
6672 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6673 || (strlen (cp
->suffix
) < length
6674 /* See if the suffix matches the end of NAME. */
6675 && !strcmp (cp
->suffix
,
6676 name
+ length
- strlen (cp
->suffix
))
6681 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6682 /* Look again, but case-insensitively this time. */
6684 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6686 if (/* The suffix `-' matches only the file name `-'. */
6687 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6688 || (strlen (cp
->suffix
) < length
6689 /* See if the suffix matches the end of NAME. */
6690 && ((!strcmp (cp
->suffix
,
6691 name
+ length
- strlen (cp
->suffix
))
6692 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6693 && !strcasecmp (cp
->suffix
,
6694 name
+ length
- strlen (cp
->suffix
)))
6700 if (cp
>= compilers
)
6702 if (cp
->spec
[0] != '@')
6703 /* A non-alias entry: return it. */
6706 /* An alias entry maps a suffix to a language.
6707 Search for the language; pass 0 for NAME and LENGTH
6708 to avoid infinite recursion if language not found. */
6709 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6715 save_string (const char *s
, int len
)
6717 char *result
= xmalloc (len
+ 1);
6719 memcpy (result
, s
, len
);
6725 pfatal_with_name (const char *name
)
6727 perror_with_name (name
);
6728 delete_temp_files ();
6733 perror_with_name (const char *name
)
6735 error ("%s: %s", name
, xstrerror (errno
));
6738 /* Output an error message and exit. */
6741 fancy_abort (const char *file
, int line
, const char *func
)
6743 fatal ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6746 /* Output an error message and exit. */
6749 fatal (const char *cmsgid
, ...)
6753 va_start (ap
, cmsgid
);
6755 fprintf (stderr
, "%s: ", programname
);
6756 vfprintf (stderr
, _(cmsgid
), ap
);
6758 fprintf (stderr
, "\n");
6759 delete_temp_files ();
6763 /* The argument is actually c-format, not gcc-internal-format,
6764 but because functions with identical names are used through
6765 the rest of the compiler with gcc-internal-format, we just
6766 need to hope all users of these functions use the common
6767 subset between c-format and gcc-internal-format. */
6770 error (const char *gmsgid
, ...)
6774 va_start (ap
, gmsgid
);
6775 fprintf (stderr
, "%s: ", programname
);
6776 vfprintf (stderr
, _(gmsgid
), ap
);
6779 fprintf (stderr
, "\n");
6783 notice (const char *cmsgid
, ...)
6787 va_start (ap
, cmsgid
);
6788 vfprintf (stderr
, _(cmsgid
), ap
);
6793 validate_switches_from_spec (const char *spec
)
6795 const char *p
= spec
;
6798 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6799 /* We have a switch spec. */
6800 p
= validate_switches (p
+ 1);
6804 validate_all_switches (void)
6806 struct compiler
*comp
;
6807 struct spec_list
*spec
;
6809 for (comp
= compilers
; comp
->spec
; comp
++)
6810 validate_switches_from_spec (comp
->spec
);
6812 /* Look through the linked list of specs read from the specs file. */
6813 for (spec
= specs
; spec
; spec
= spec
->next
)
6814 validate_switches_from_spec (*spec
->ptr_spec
);
6816 validate_switches_from_spec (link_command_spec
);
6819 /* Look at the switch-name that comes after START
6820 and mark as valid all supplied switches that match it. */
6823 validate_switches (const char *start
)
6825 const char *p
= start
;
6829 bool suffix
= false;
6830 bool starred
= false;
6832 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6845 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6846 || *p
== ',' || *p
== '.' || *p
== '@')
6851 starred
= true, p
++;
6857 /* Mark all matching switches as valid. */
6858 for (i
= 0; i
< n_switches
; i
++)
6859 if (!strncmp (switches
[i
].part1
, atom
, len
)
6860 && (starred
|| switches
[i
].part1
[len
] == 0))
6861 switches
[i
].validated
= 1;
6865 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6868 if (*p
&& p
[-1] == ':')
6870 while (*p
&& *p
!= ';' && *p
!= '}')
6875 if (*p
== '{' || *p
== '<')
6876 p
= validate_switches (p
+1);
6877 else if (p
[0] == 'W' && p
[1] == '{')
6878 p
= validate_switches (p
+2);
6885 if (*p
&& p
[-1] == ';')
6899 static struct mdswitchstr
*mdswitches
;
6900 static int n_mdswitches
;
6902 /* Check whether a particular argument was used. The first time we
6903 canonicalize the switches to keep only the ones we care about. */
6906 used_arg (const char *p
, int len
)
6911 const char *replace
;
6916 static struct mswitchstr
*mswitches
;
6917 static int n_mswitches
;
6922 struct mswitchstr
*matches
;
6926 /* Break multilib_matches into the component strings of string
6927 and replacement string. */
6928 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6932 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6934 q
= multilib_matches
;
6943 fatal ("multilib spec '%s' is invalid", multilib_matches
);
6947 matches
[i
].len
= q
- matches
[i
].str
;
6949 matches
[i
].replace
= ++q
;
6950 while (*q
!= ';' && *q
!= '\0')
6953 goto invalid_matches
;
6956 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6962 /* Now build a list of the replacement string for switches that we care
6963 about. Make sure we allocate at least one entry. This prevents
6964 xmalloc from calling fatal, and prevents us from re-executing this
6967 = xmalloc (sizeof (struct mswitchstr
)
6968 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6969 for (i
= 0; i
< n_switches
; i
++)
6970 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6972 int xlen
= strlen (switches
[i
].part1
);
6973 for (j
= 0; j
< cnt
; j
++)
6974 if (xlen
== matches
[j
].len
6975 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6977 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6978 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6979 mswitches
[n_mswitches
].replace
= (char *) 0;
6980 mswitches
[n_mswitches
].rep_len
= 0;
6986 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6987 on the command line nor any options mutually incompatible with
6989 for (i
= 0; i
< n_mdswitches
; i
++)
6993 for (q
= multilib_options
; *q
!= '\0'; q
++)
6999 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7000 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7002 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7009 if (*q
!= ' ' && *q
!= '\0')
7011 while (*r
!= ' ' && *r
!= '\0')
7014 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7017 if (used_arg (r
, q
- r
))
7022 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7023 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7024 mswitches
[n_mswitches
].replace
= (char *) 0;
7025 mswitches
[n_mswitches
].rep_len
= 0;
7038 for (i
= 0; i
< n_mswitches
; i
++)
7039 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7046 default_arg (const char *p
, int len
)
7050 for (i
= 0; i
< n_mdswitches
; i
++)
7051 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7057 /* Work out the subdirectory to use based on the options. The format of
7058 multilib_select is a list of elements. Each element is a subdirectory
7059 name followed by a list of options followed by a semicolon. The format
7060 of multilib_exclusions is the same, but without the preceding
7061 directory. First gcc will check the exclusions, if none of the options
7062 beginning with an exclamation point are present, and all of the other
7063 options are present, then we will ignore this completely. Passing
7064 that, gcc will consider each multilib_select in turn using the same
7065 rules for matching the options. If a match is found, that subdirectory
7069 set_multilib_dir (void)
7072 unsigned int this_path_len
;
7073 const char *this_path
, *this_arg
;
7074 const char *start
, *end
;
7076 int ok
, ndfltok
, first
;
7079 start
= multilib_defaults
;
7080 while (*start
== ' ' || *start
== '\t')
7082 while (*start
!= '\0')
7085 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7087 while (*start
== ' ' || *start
== '\t')
7095 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7096 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7098 while (*start
== ' ' || *start
== '\t')
7104 for (end
= start
+ 1;
7105 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7108 obstack_grow (&multilib_obstack
, start
, end
- start
);
7109 obstack_1grow (&multilib_obstack
, 0);
7110 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7111 mdswitches
[i
++].len
= end
- start
;
7118 p
= multilib_exclusions
;
7121 /* Ignore newlines. */
7128 /* Check the arguments. */
7135 fatal ("multilib exclusions '%s' is invalid",
7136 multilib_exclusions
);
7146 while (*p
!= ' ' && *p
!= ';')
7149 goto invalid_exclusions
;
7153 if (*this_arg
!= '!')
7161 ok
= used_arg (this_arg
, p
- this_arg
);
7176 p
= multilib_select
;
7179 /* Ignore newlines. */
7186 /* Get the initial path. */
7193 fatal ("multilib select '%s' is invalid",
7198 this_path_len
= p
- this_path
;
7200 /* Check the arguments. */
7207 goto invalid_select
;
7216 while (*p
!= ' ' && *p
!= ';')
7219 goto invalid_select
;
7223 if (*this_arg
!= '!')
7231 /* If this is a default argument, we can just ignore it.
7232 This is true even if this_arg begins with '!'. Beginning
7233 with '!' does not mean that this argument is necessarily
7234 inappropriate for this library: it merely means that
7235 there is a more specific library which uses this
7236 argument. If this argument is a default, we need not
7237 consider that more specific library. */
7238 ok
= used_arg (this_arg
, p
- this_arg
);
7245 if (default_arg (this_arg
, p
- this_arg
))
7254 if (this_path_len
!= 1
7255 || this_path
[0] != '.')
7257 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7260 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7261 new_multilib_dir
[this_path_len
] = '\0';
7262 q
= strchr (new_multilib_dir
, ':');
7265 multilib_dir
= new_multilib_dir
;
7272 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7274 while (q
< end
&& *q
!= ':')
7278 char *new_multilib_os_dir
= xmalloc (end
- q
);
7279 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7280 new_multilib_os_dir
[end
- q
- 1] = '\0';
7281 multilib_os_dir
= new_multilib_os_dir
;
7289 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7290 && strcmp (multilib_os_dir
, ".") == 0)
7292 free ((char *) multilib_os_dir
);
7293 multilib_os_dir
= NULL
;
7295 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7296 multilib_os_dir
= multilib_dir
;
7299 /* Print out the multiple library subdirectory selection
7300 information. This prints out a series of lines. Each line looks
7301 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7302 required. Only the desired options are printed out, the negative
7303 matches. The options are print without a leading dash. There are
7304 no spaces to make it easy to use the information in the shell.
7305 Each subdirectory is printed only once. This assumes the ordering
7306 generated by the genmultilib script. Also, we leave out ones that match
7310 print_multilib_info (void)
7312 const char *p
= multilib_select
;
7313 const char *last_path
= 0, *this_path
;
7315 unsigned int last_path_len
= 0;
7320 /* Ignore newlines. */
7327 /* Get the initial path. */
7334 fatal ("multilib select '%s' is invalid", multilib_select
);
7340 /* When --disable-multilib was used but target defines
7341 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7342 to find multilib_os_dir, so skip them from output. */
7343 if (this_path
[0] == '.' && this_path
[1] == ':')
7346 /* Check for matches with the multilib_exclusions. We don't bother
7347 with the '!' in either list. If any of the exclusion rules match
7348 all of its options with the select rule, we skip it. */
7350 const char *e
= multilib_exclusions
;
7351 const char *this_arg
;
7356 /* Ignore newlines. */
7363 /* Check the arguments. */
7372 fatal ("multilib exclusion '%s' is invalid",
7373 multilib_exclusions
);
7384 while (*e
!= ' ' && *e
!= ';')
7387 goto invalid_exclusion
;
7395 int len
= e
- this_arg
;
7398 goto invalid_select
;
7402 while (*q
!= ' ' && *q
!= ';')
7405 goto invalid_select
;
7409 if (! strncmp (arg
, this_arg
,
7410 (len
< q
- arg
) ? q
- arg
: len
)
7411 || default_arg (this_arg
, e
- this_arg
))
7441 /* If this is a duplicate, skip it. */
7442 skip
= (last_path
!= 0
7443 && (unsigned int) (p
- this_path
) == last_path_len
7444 && ! strncmp (last_path
, this_path
, last_path_len
));
7446 last_path
= this_path
;
7447 last_path_len
= p
- this_path
;
7450 /* If this directory requires any default arguments, we can skip
7451 it. We will already have printed a directory identical to
7452 this one which does not require that default argument. */
7463 goto invalid_select
;
7470 while (*q
!= ' ' && *q
!= ';')
7473 goto invalid_select
;
7478 && default_arg (arg
, q
- arg
))
7493 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7504 goto invalid_select
;
7512 use_arg
= *p
!= '!';
7517 while (*p
!= ' ' && *p
!= ';')
7520 goto invalid_select
;
7532 /* If there are extra options, print them now. */
7533 if (multilib_extra
&& *multilib_extra
)
7535 int print_at
= TRUE
;
7538 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7559 /* if-exists built-in spec function.
7561 Checks to see if the file specified by the absolute pathname in
7562 ARGS exists. Returns that pathname if found.
7564 The usual use for this function is to check for a library file
7565 (whose name has been expanded with %s). */
7568 if_exists_spec_function (int argc
, const char **argv
)
7570 /* Must have only one argument. */
7571 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7577 /* if-exists-else built-in spec function.
7579 This is like if-exists, but takes an additional argument which
7580 is returned if the first argument does not exist. */
7583 if_exists_else_spec_function (int argc
, const char **argv
)
7585 /* Must have exactly two arguments. */
7589 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7595 /* replace-outfile built-in spec function.
7597 This looks for the first argument in the outfiles array's name and
7598 replaces it with the second argument. */
7601 replace_outfile_spec_function (int argc
, const char **argv
)
7604 /* Must have exactly two arguments. */
7608 for (i
= 0; i
< n_infiles
; i
++)
7610 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7611 outfiles
[i
] = xstrdup (argv
[1]);
7616 /* Given two version numbers, compares the two numbers.
7617 A version number must match the regular expression
7618 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7621 compare_version_strings (const char *v1
, const char *v2
)
7626 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7627 REG_EXTENDED
| REG_NOSUB
) != 0)
7629 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7630 if (rresult
== REG_NOMATCH
)
7631 fatal ("invalid version number `%s'", v1
);
7632 else if (rresult
!= 0)
7634 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7635 if (rresult
== REG_NOMATCH
)
7636 fatal ("invalid version number `%s'", v2
);
7637 else if (rresult
!= 0)
7640 return strverscmp (v1
, v2
);
7644 /* version_compare built-in spec function.
7646 This takes an argument of the following form:
7648 <comparison-op> <arg1> [<arg2>] <switch> <result>
7650 and produces "result" if the comparison evaluates to true,
7651 and nothing if it doesn't.
7653 The supported <comparison-op> values are:
7655 >= true if switch is a later (or same) version than arg1
7657 < true if switch is an earlier version than arg1
7659 >< true if switch is arg1 or later, and earlier than arg2
7660 <> true if switch is earlier than arg1 or is arg2 or later
7662 If the switch is not present, the condition is false unless
7663 the first character of the <comparison-op> is '!'.
7666 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7667 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7670 version_compare_spec_function (int argc
, const char **argv
)
7674 const char *switch_value
= NULL
;
7680 if (argv
[0][0] == '\0')
7682 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7684 if (argc
!= nargs
+ 3)
7687 switch_len
= strlen (argv
[nargs
+ 1]);
7688 for (i
= 0; i
< n_switches
; i
++)
7689 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7690 && check_live_switch (i
, switch_len
))
7691 switch_value
= switches
[i
].part1
+ switch_len
;
7693 if (switch_value
== NULL
)
7697 comp1
= compare_version_strings (switch_value
, argv
[1]);
7699 comp2
= compare_version_strings (switch_value
, argv
[2]);
7701 comp2
= -1; /* This value unused. */
7704 switch (argv
[0][0] << 8 | argv
[0][1])
7706 case '>' << 8 | '=':
7707 result
= comp1
>= 0;
7709 case '!' << 8 | '<':
7710 result
= comp1
>= 0 || switch_value
== NULL
;
7715 case '!' << 8 | '>':
7716 result
= comp1
< 0 || switch_value
== NULL
;
7718 case '>' << 8 | '<':
7719 result
= comp1
>= 0 && comp2
< 0;
7721 case '<' << 8 | '>':
7722 result
= comp1
< 0 || comp2
>= 0;
7731 return argv
[nargs
+ 2];