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, 59 Temple Place - Suite 330, 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
89 /* By default there is no special suffix for target executables. */
90 /* FIXME: when autoconf is fixed, remove the host check - dj */
91 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
92 #define HAVE_TARGET_EXECUTABLE_SUFFIX
95 /* By default there is no special suffix for host executables. */
96 #ifdef HOST_EXECUTABLE_SUFFIX
97 #define HAVE_HOST_EXECUTABLE_SUFFIX
99 #define HOST_EXECUTABLE_SUFFIX ""
102 /* By default, the suffix for target object files is ".o". */
103 #ifdef TARGET_OBJECT_SUFFIX
104 #define HAVE_TARGET_OBJECT_SUFFIX
106 #define TARGET_OBJECT_SUFFIX ".o"
109 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
111 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
112 #ifndef LIBRARY_PATH_ENV
113 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
117 #define kill(p,s) raise(s)
120 /* If a stage of compilation returns an exit status >= 1,
121 compilation of that file ceases. */
123 #define MIN_FATAL_STATUS 1
125 /* Flag set by cppspec.c to 1. */
128 /* Flag saying to pass the greatest exit code returned by a sub-process
129 to the calling program. */
130 static int pass_exit_codes
;
132 /* Definition of string containing the arguments given to configure. */
133 #include "configargs.h"
135 /* Flag saying to print the directories gcc will search through looking for
136 programs, libraries, etc. */
138 static int print_search_dirs
;
140 /* Flag saying to print the full filename of this file
141 as found through our usual search mechanism. */
143 static const char *print_file_name
= NULL
;
145 /* As print_file_name, but search for executable file. */
147 static const char *print_prog_name
= NULL
;
149 /* Flag saying to print the relative path we'd use to
150 find libgcc.a given the current compiler flags. */
152 static int print_multi_directory
;
154 /* Flag saying to print the relative path we'd use to
155 find OS libraries given the current compiler flags. */
157 static int print_multi_os_directory
;
159 /* Flag saying to print the list of subdirectories and
160 compiler flags used to select them in a standard form. */
162 static int print_multi_lib
;
164 /* Flag saying to print the command line options understood by gcc and its
167 static int print_help_list
;
169 /* Flag indicating whether we should print the command and arguments */
171 static int verbose_flag
;
173 /* Flag indicating whether we should ONLY print the command and
174 arguments (like verbose_flag) without executing the command.
175 Displayed arguments are quoted so that the generated command
176 line is suitable for execution. This is intended for use in
177 shell scripts to capture the driver-generated command line. */
178 static int verbose_only_flag
;
180 /* Flag indicating to print target specific command line options. */
182 static int target_help_flag
;
184 /* Flag indicating whether we should report subprocess execution times
185 (if this is supported by the system - see pexecute.c). */
187 static int report_times
;
189 /* Nonzero means place this string before uses of /, so that include
190 and library files can be found in an alternate location. */
192 #ifdef TARGET_SYSTEM_ROOT
193 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
195 static const char *target_system_root
= 0;
198 /* Nonzero means pass the updated target_system_root to the compiler. */
200 static int target_system_root_changed
;
202 /* Nonzero means append this string to target_system_root. */
204 static const char *target_sysroot_suffix
= 0;
206 /* Nonzero means append this string to target_system_root for headers. */
208 static const char *target_sysroot_hdrs_suffix
= 0;
210 /* Nonzero means write "temp" files in source directory
211 and use the source file's name in them, and don't delete them. */
213 static int save_temps_flag
;
215 /* Nonzero means pass multiple source files to the compiler at one time. */
217 static int combine_flag
= 0;
219 /* Nonzero means use pipes to communicate between subprocesses.
220 Overridden by either of the above two flags. */
222 static int use_pipes
;
224 /* The compiler version. */
226 static const char *compiler_version
;
228 /* The target version specified with -V */
230 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
232 /* The target machine specified with -b. */
234 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
236 /* Nonzero if cross-compiling.
237 When -b is used, the value comes from the `specs' file. */
240 static const char *cross_compile
= "1";
242 static const char *cross_compile
= "0";
245 #ifdef MODIFY_TARGET_NAME
247 /* Information on how to alter the target name based on a command-line
248 switch. The only case we support now is simply appending or deleting a
249 string to or from the end of the first part of the configuration name. */
251 static const struct modify_target
253 const char *const sw
;
254 const enum add_del
{ADD
, DELETE
} add_del
;
255 const char *const str
;
257 modify_target
[] = MODIFY_TARGET_NAME
;
260 /* The number of errors that have occurred; the link phase will not be
261 run if this is nonzero. */
262 static int error_count
= 0;
264 /* Greatest exit code of sub-processes that has been encountered up to
266 static int greatest_status
= 1;
268 /* This is the obstack which we use to allocate many strings. */
270 static struct obstack obstack
;
272 /* This is the obstack to build an environment variable to pass to
273 collect2 that describes all of the relevant switches of what to
274 pass the compiler in building the list of pointers to constructors
277 static struct obstack collect_obstack
;
279 /* Forward declaration for prototypes. */
283 static void init_spec (void);
284 static void store_arg (const char *, int, int);
285 static char *load_specs (const char *);
286 static void read_specs (const char *, int);
287 static void set_spec (const char *, const char *);
288 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
289 static char *build_search_list (struct path_prefix
*, const char *, int);
290 static void putenv_from_prefixes (struct path_prefix
*, const char *);
291 static int access_check (const char *, int);
292 static char *find_a_file (struct path_prefix
*, const char *, int, int);
293 static void add_prefix (struct path_prefix
*, const char *, const char *,
295 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
296 const char *, int, int, int);
297 static void translate_options (int *, const char *const **);
298 static char *skip_whitespace (char *);
299 static void delete_if_ordinary (const char *);
300 static void delete_temp_files (void);
301 static void delete_failure_queue (void);
302 static void clear_failure_queue (void);
303 static int check_live_switch (int, int);
304 static const char *handle_braces (const char *);
305 static inline bool input_suffix_matches (const char *, const char *);
306 static inline bool switch_matches (const char *, const char *, int);
307 static inline void mark_matching_switches (const char *, const char *, int);
308 static inline void process_marked_switches (void);
309 static const char *process_brace_body (const char *, const char *, const char *, int, int);
310 static const struct spec_function
*lookup_spec_function (const char *);
311 static const char *eval_spec_function (const char *, const char *);
312 static const char *handle_spec_function (const char *);
313 static char *save_string (const char *, int);
314 static void set_collect_gcc_options (void);
315 static void do_spec_path (struct prefix_list
*, const char *, int, int, int, const char *, const char *);
316 static int do_spec_1 (const char *, int, const char *);
317 static int do_spec_2 (const char *);
318 static void do_option_spec (const char *, const char *);
319 static void do_self_spec (const char *);
320 static const char *find_file (const char *);
321 static int is_directory (const char *, const char *, int);
322 static const char *validate_switches (const char *);
323 static void validate_all_switches (void);
324 static inline void validate_switches_from_spec (const char *);
325 static void give_switch (int, int);
326 static int used_arg (const char *, int);
327 static int default_arg (const char *, int);
328 static void set_multilib_dir (void);
329 static void print_multilib_info (void);
330 static void perror_with_name (const char *);
331 static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN
;
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 **);
354 /* The Specs Language
356 Specs are strings containing lines, each of which (if not blank)
357 is made up of a program name, and arguments separated by spaces.
358 The program name must be exact and start from root, since no path
359 is searched and it is unreliable to depend on the current working directory.
360 Redirection of input or output is not supported; the subprograms must
361 accept filenames saying what files to read and write.
363 In addition, the specs can contain %-sequences to substitute variable text
364 or for conditional text. Here is a table of all defined %-sequences.
365 Note that spaces are not generated automatically around the results of
366 expanding these sequences; therefore, you can concatenate them together
367 or with constant text in a single argument.
369 %% substitute one % into the program name or argument.
370 %i substitute the name of the input file being processed.
371 %b substitute the basename of the input file being processed.
372 This is the substring up to (and not including) the last period
373 and not including the directory.
374 %B same as %b, but include the file suffix (text after the last period).
376 substitute a file name that has suffix SUFFIX and is chosen
377 once per compilation, and mark the argument a la %d. To reduce
378 exposure to denial-of-service attacks, the file name is now
379 chosen in a way that is hard to predict even when previously
380 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
381 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
382 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
383 had been pre-processed. Previously, %g was simply substituted
384 with a file name chosen once per compilation, without regard
385 to any appended suffix (which was therefore treated just like
386 ordinary text), making such attacks more likely to succeed.
388 like %g, but if -pipe is in effect, expands simply to "-".
390 like %g, but if -pipe is in effect, expands to nothing. (We have both
391 %| and %m to accommodate differences between system assemblers; see
392 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
394 like %g, but generates a new temporary file name even if %uSUFFIX
397 substitutes the last file name generated with %uSUFFIX, generating a
398 new one if there is no such last file name. In the absence of any
399 %uSUFFIX, this is just like %gSUFFIX, except they don't share
400 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
401 would involve the generation of two distinct file names, one
402 for each `%g.s' and another for each `%U.s'. Previously, %U was
403 simply substituted with a file name chosen for the previous %u,
404 without regard to any appended suffix.
406 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
407 writable, and if save-temps is off; otherwise, substitute the name
408 of a temporary file, just like %u. This temporary file is not
409 meant for communication between processes, but rather as a junk
412 substitutes .SUFFIX for the suffixes of a matched switch's args when
413 it is subsequently output with %*. SUFFIX is terminated by the next
415 %d marks the argument containing or following the %d as a
416 temporary file name, so that that file will be deleted if CC exits
417 successfully. Unlike %g, this contributes no text to the argument.
418 %w marks the argument containing or following the %w as the
419 "output file" of this compilation. This puts the argument
420 into the sequence of arguments that %o will substitute later.
421 %V indicates that this compilation produces no "output file".
423 like %{...} but mark last argument supplied within
424 as a file to be deleted on failure.
425 %o substitutes the names of all the output files, with spaces
426 automatically placed around them. You should write spaces
427 around the %o as well or the results are undefined.
428 %o is for use in the specs for running the linker.
429 Input files whose names have no recognized suffix are not compiled
430 at all, but they are included among the output files, so they will
432 %O substitutes the suffix for object files. Note that this is
433 handled specially when it immediately follows %g, %u, or %U
434 (with or without a suffix argument) because of the need for
435 those to form complete file names. The handling is such that
436 %O is treated exactly as if it had already been substituted,
437 except that %g, %u, and %U do not currently support additional
438 SUFFIX characters following %O as they would following, for
440 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
441 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
442 and -B options) as necessary.
443 %s current argument is the name of a library or startup file of some sort.
444 Search for that file in a standard list of directories
445 and substitute the full name found.
446 %eSTR Print STR as an error message. STR is terminated by a newline.
447 Use this when inconsistent options are detected.
448 %nSTR Print STR as a notice. STR is terminated by a newline.
449 %x{OPTION} Accumulate an option for %X.
450 %X Output the accumulated linker options specified by compilations.
451 %Y Output the accumulated assembler options specified by compilations.
452 %Z Output the accumulated preprocessor options specified by compilations.
453 %a process ASM_SPEC as a spec.
454 This allows config.h to specify part of the spec for running as.
455 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
456 used here. This can be used to run a post-processor after the
457 assembler has done its job.
458 %D Dump out a -L option for each directory in startfile_prefixes.
459 If multilib_dir is set, extra entries are generated with it affixed.
460 %l process LINK_SPEC as a spec.
461 %L process LIB_SPEC as a spec.
462 %G process LIBGCC_SPEC as a spec.
463 %R Output the concatenation of target_system_root and
464 target_sysroot_suffix.
465 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
466 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
467 %C process CPP_SPEC as a spec.
468 %1 process CC1_SPEC as a spec.
469 %2 process CC1PLUS_SPEC as a spec.
470 %* substitute the variable part of a matched option. (See below.)
471 Note that each comma in the substituted string is replaced by
473 %<S remove all occurrences of -S from the command line.
474 Note - this command is position dependent. % commands in the
475 spec string before this one will see -S, % commands in the
476 spec string after this one will not.
477 %<S* remove all occurrences of all switches beginning with -S from the
480 Call the named function FUNCTION, passing it ARGS. ARGS is
481 first processed as a nested spec string, then split into an
482 argument vector in the usual fashion. The function returns
483 a string which is processed as if it had appeared literally
484 as part of the current spec.
485 %{S} substitutes the -S switch, if that switch was given to CC.
486 If that switch was not specified, this substitutes nothing.
487 Here S is a metasyntactic variable.
488 %{S*} substitutes all the switches specified to CC whose names start
489 with -S. This is used for -o, -I, etc; switches that take
490 arguments. CC considers `-o foo' as being one switch whose
491 name starts with `o'. %{o*} would substitute this text,
492 including the space; thus, two arguments would be generated.
493 %{S*&T*} likewise, but preserve order of S and T options (the order
494 of S and T in the spec is not significant). Can be any number
495 of ampersand-separated variables; for each the wild card is
496 optional. Useful for CPP as %{D*&U*&A*}.
498 %{S:X} substitutes X, if the -S switch was given to CC.
499 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
500 %{S*:X} substitutes X if one or more switches whose names start
501 with -S was given to CC. Normally X is substituted only
502 once, no matter how many such switches appeared. However,
503 if %* appears somewhere in X, then X will be substituted
504 once for each matching switch, with the %* replaced by the
505 part of that switch that matched the '*'.
506 %{.S:X} substitutes X, if processing a file with suffix S.
507 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
509 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
510 combined with !, ., and * as above binding stronger than the OR.
511 If %* appears in X, all of the alternatives must be starred, and
512 only the first matching alternative is substituted.
513 %{S:X; if S was given to CC, substitutes X;
514 T:Y; else if T was given to CC, substitutes Y;
515 :D} else substitutes D. There can be as many clauses as you need.
516 This may be combined with ., !, |, and * as above.
518 %(Spec) processes a specification defined in a specs file as *Spec:
519 %[Spec] as above, but put __ around -D arguments
521 The conditional text X in a %{S:X} or similar construct may contain
522 other nested % constructs or spaces, or even newlines. They are
523 processed as usual, as described above. Trailing white space in X is
524 ignored. White space may also appear anywhere on the left side of the
525 colon in these constructs, except between . or * and the corresponding
528 The -O, -f, -m, and -W switches are handled specifically in these
529 constructs. If another value of -O or the negated form of a -f, -m, or
530 -W switch is found later in the command line, the earlier switch
531 value is ignored, except with {S*} where S is just one letter; this
532 passes all matching options.
534 The character | at the beginning of the predicate text is used to indicate
535 that a command should be piped to the following command, but only if -pipe
538 Note that it is built into CC which switches take arguments and which
539 do not. You might think it would be useful to generalize this to
540 allow each compiler's spec to say which switches take arguments. But
541 this cannot be done in a consistent fashion. CC cannot even decide
542 which input files have been specified without knowing which switches
543 take arguments, and it must know which input files to compile in order
544 to tell which compilers to run.
546 CC also knows implicitly that arguments starting in `-l' are to be
547 treated as compiler output files, and passed to the linker in their
548 proper position among the other output files. */
550 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
552 /* config.h can define ASM_SPEC to provide extra args to the assembler
553 or extra switch-translations. */
558 /* config.h can define ASM_FINAL_SPEC to run a post processor after
559 the assembler has run. */
560 #ifndef ASM_FINAL_SPEC
561 #define ASM_FINAL_SPEC ""
564 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
565 or extra switch-translations. */
570 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
571 or extra switch-translations. */
576 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
577 or extra switch-translations. */
579 #define CC1PLUS_SPEC ""
582 /* config.h can define LINK_SPEC to provide extra args to the linker
583 or extra switch-translations. */
588 /* config.h can define LIB_SPEC to override the default libraries. */
590 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
595 /* XXX: valid only for GNU ld */
596 /* XXX: should exactly match hooks provided by libmudflap.a */
597 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
598 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
599 --wrap=mmap --wrap=munmap --wrap=alloca\
600 } %{fmudflapth: --wrap=pthread_create --wrap=pthread_join --wrap=pthread_exit\
601 }} %{fmudflap|fmudflapth: --wrap=main}"
604 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
607 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
610 #if defined(REAL_LIBGCC_SPEC)
611 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
612 #elif defined(LINK_LIBGCC_SPECIAL_1)
613 /* Have gcc do the search for libgcc.a. */
614 #define LIBGCC_SPEC "libgcc.a%s"
616 #define LIBGCC_SPEC "-lgcc"
620 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
621 #ifndef STARTFILE_SPEC
622 #define STARTFILE_SPEC \
623 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
626 /* config.h can define SWITCHES_NEED_SPACES to control which options
627 require spaces between the option and the argument. */
628 #ifndef SWITCHES_NEED_SPACES
629 #define SWITCHES_NEED_SPACES ""
632 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
634 #define ENDFILE_SPEC ""
638 #define LINKER_NAME "collect2"
641 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
643 #ifndef ASM_DEBUG_SPEC
644 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
645 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
646 # define ASM_DEBUG_SPEC \
647 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
648 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
649 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
651 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
652 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
654 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
655 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
659 #ifndef ASM_DEBUG_SPEC
660 # define ASM_DEBUG_SPEC ""
663 /* Here is the spec for running the linker, after compiling all files. */
665 /* This is overridable by the target in case they need to specify the
666 -lgcc and -lc order specially, yet not require them to override all
667 of LINK_COMMAND_SPEC. */
668 #ifndef LINK_GCC_C_SEQUENCE_SPEC
669 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
672 #ifndef LINK_PIE_SPEC
674 #define LINK_PIE_SPEC "%{pie:-pie} "
676 #define LINK_PIE_SPEC "%{pie:} "
680 /* -u* was put back because both BSD and SysV seem to support it. */
681 /* %{static:} simply prevents an error message if the target machine
682 doesn't handle -static. */
683 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
684 scripts which exist in user specified directories, or in standard
686 #ifndef LINK_COMMAND_SPEC
687 #define LINK_COMMAND_SPEC "\
688 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
689 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
690 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
691 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o %(mflib)\
692 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
693 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
694 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
697 #ifndef LINK_LIBGCC_SPEC
698 /* Generate -L options for startfile prefix list. */
699 # define LINK_LIBGCC_SPEC "%D"
702 #ifndef STARTFILE_PREFIX_SPEC
703 # define STARTFILE_PREFIX_SPEC ""
707 # define SYSROOT_SPEC "--sysroot=%R"
710 #ifndef SYSROOT_SUFFIX_SPEC
711 # define SYSROOT_SUFFIX_SPEC ""
714 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
715 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
718 static const char *asm_debug
;
719 static const char *cpp_spec
= CPP_SPEC
;
720 static const char *cc1_spec
= CC1_SPEC
;
721 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
722 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
723 static const char *asm_spec
= ASM_SPEC
;
724 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
725 static const char *link_spec
= LINK_SPEC
;
726 static const char *lib_spec
= LIB_SPEC
;
727 static const char *mfwrap_spec
= MFWRAP_SPEC
;
728 static const char *mflib_spec
= MFLIB_SPEC
;
729 static const char *libgcc_spec
= LIBGCC_SPEC
;
730 static const char *endfile_spec
= ENDFILE_SPEC
;
731 static const char *startfile_spec
= STARTFILE_SPEC
;
732 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
733 static const char *linker_name_spec
= LINKER_NAME
;
734 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
735 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
736 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
737 static const char *sysroot_spec
= SYSROOT_SPEC
;
738 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
739 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
741 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
742 There should be no need to override these in target dependent files,
743 but we need to copy them to the specs file so that newer versions
744 of the GCC driver can correctly drive older tool chains with the
745 appropriate -B options. */
747 /* When cpplib handles traditional preprocessing, get rid of this, and
748 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
749 that we default the front end language better. */
750 static const char *trad_capable_cpp
=
751 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
753 /* We don't wrap .d files in %W{} since a missing .d file, and
754 therefore no dependency entry, confuses make into thinking a .o
755 file that happens to exist is up-to-date. */
756 static const char *cpp_unique_options
=
757 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
758 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
759 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
760 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
761 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
762 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
763 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
764 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
765 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
768 /* This contains cpp options which are common with cc1_options and are passed
769 only when preprocessing only to avoid duplication. We pass the cc1 spec
770 options to the preprocessor so that it the cc1 spec may manipulate
771 options used to set target flags. Those special target flags settings may
772 in turn cause preprocessor symbols to be defined specially. */
773 static const char *cpp_options
=
774 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
775 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
776 %{undef} %{save-temps:-fpch-preprocess}";
778 /* This contains cpp options which are not passed when the preprocessor
779 output will be used by another program. */
780 static const char *cpp_debug_options
= "%{d*}";
782 /* NB: This is shared amongst all front-ends. */
783 static const char *cc1_options
=
784 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
785 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
786 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
787 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
788 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
789 %{Qn:-fno-ident} %{--help:--help}\
790 %{--target-help:--target-help}\
791 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
792 %{fsyntax-only:-o %j} %{-param*}\
793 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
794 %{coverage:-fprofile-arcs -ftest-coverage}";
796 static const char *asm_options
=
797 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
799 static const char *invoke_as
=
800 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
801 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
803 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
806 /* Some compilers have limits on line lengths, and the multilib_select
807 and/or multilib_matches strings can be very long, so we build them at
809 static struct obstack multilib_obstack
;
810 static const char *multilib_select
;
811 static const char *multilib_matches
;
812 static const char *multilib_defaults
;
813 static const char *multilib_exclusions
;
815 /* Check whether a particular argument is a default argument. */
817 #ifndef MULTILIB_DEFAULTS
818 #define MULTILIB_DEFAULTS { "" }
821 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
823 #ifndef DRIVER_SELF_SPECS
824 #define DRIVER_SELF_SPECS ""
827 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
829 #ifndef OPTION_DEFAULT_SPECS
830 #define OPTION_DEFAULT_SPECS { "", "" }
839 static const struct default_spec
840 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
844 struct user_specs
*next
;
845 const char *filename
;
848 static struct user_specs
*user_specs_head
, *user_specs_tail
;
850 #ifndef SWITCH_TAKES_ARG
851 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
854 #ifndef WORD_SWITCH_TAKES_ARG
855 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
858 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
859 /* This defines which switches stop a full compilation. */
860 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
861 ((CHAR) == 'c' || (CHAR) == 'S')
863 #ifndef SWITCH_CURTAILS_COMPILATION
864 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
865 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
869 /* Record the mapping from file suffixes for compilation specs. */
873 const char *suffix
; /* Use this compiler for input files
874 whose names end in this suffix. */
876 const char *spec
; /* To use this compiler, run this spec. */
878 const char *cpp_spec
; /* If non-NULL, substitute this spec
879 for `%C', rather than the usual
881 const int combinable
; /* If nonzero, compiler can deal with
882 multiple source files at once (IMA). */
883 const int needs_preprocessing
; /* If nonzero, source files need to
884 be run through a preprocessor. */
887 /* Pointer to a vector of `struct compiler' that gives the spec for
888 compiling a file, based on its suffix.
889 A file that does not end in any of these suffixes will be passed
890 unchanged to the loader and nothing else will be done to it.
892 An entry containing two 0s is used to terminate the vector.
894 If multiple entries match a file, the last matching one is used. */
896 static struct compiler
*compilers
;
898 /* Number of entries in `compilers', not counting the null terminator. */
900 static int n_compilers
;
902 /* The default list of file name suffixes and their compilation specs. */
904 static const struct compiler default_compilers
[] =
906 /* Add lists of suffixes of known languages here. If those languages
907 were not present when we built the driver, we will hit these copies
908 and be given a more meaningful error than "file not used since
909 linking is not done". */
910 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
911 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
912 {".mii", "#Objective-C++", 0, 0, 0},
913 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
914 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
915 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
916 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
917 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
918 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
919 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
920 {".FPP", "#Fortran", 0, 0, 0},
921 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
922 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
923 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
924 {".r", "#Ratfor", 0, 0, 0},
925 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
926 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
927 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
928 /* Next come the entries for C. */
929 {".c", "@c", 0, 1, 1},
931 /* cc1 has an integrated ISO C preprocessor. We should invoke the
932 external preprocessor if -save-temps is given. */
933 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
935 %{traditional|ftraditional:\
936 %eGNU C no longer supports -traditional without -E}\
938 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
939 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
940 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
942 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
943 cc1 %(cpp_unique_options) %(cc1_options)}}}\
944 %{!fsyntax-only:%(invoke_as)}} \
946 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
947 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
948 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
949 cc1 %(cpp_unique_options) %(cc1_options)}}\
950 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
952 "%{!E:%e-E or -x required when input is from standard input}\
953 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
954 {".h", "@c-header", 0, 0, 0},
956 /* cc1 has an integrated ISO C preprocessor. We should invoke the
957 external preprocessor if -save-temps is given. */
958 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
960 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
961 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
962 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
964 -o %g.s %{!o*:--output-pch=%i.gch}\
965 %W{o*:--output-pch=%*}%V}\
966 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
967 cc1 %(cpp_unique_options) %(cc1_options)\
968 -o %g.s %{!o*:--output-pch=%i.gch}\
969 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
970 {".i", "@cpp-output", 0, 1, 0},
972 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
973 {".s", "@assembler", 0, 1, 0},
975 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
976 {".S", "@assembler-with-cpp", 0, 1, 0},
977 {"@assembler-with-cpp",
978 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
979 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
980 %{E|M|MM:%(cpp_debug_options)}\
981 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
982 as %(asm_debug) %(asm_options) %|.s %A }}}}"
984 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
985 %{E|M|MM:%(cpp_debug_options)}\
986 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
987 as %(asm_debug) %(asm_options) %m.s %A }}}}"
992 /* Mark end of table. */
996 /* Number of elements in default_compilers, not counting the terminator. */
998 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1000 /* A vector of options to give to the linker.
1001 These options are accumulated by %x,
1002 and substituted into the linker command with %X. */
1003 static int n_linker_options
;
1004 static char **linker_options
;
1006 /* A vector of options to give to the assembler.
1007 These options are accumulated by -Wa,
1008 and substituted into the assembler command with %Y. */
1009 static int n_assembler_options
;
1010 static char **assembler_options
;
1012 /* A vector of options to give to the preprocessor.
1013 These options are accumulated by -Wp,
1014 and substituted into the preprocessor command with %Z. */
1015 static int n_preprocessor_options
;
1016 static char **preprocessor_options
;
1018 /* Define how to map long options into short ones. */
1020 /* This structure describes one mapping. */
1023 /* The long option's name. */
1024 const char *const name
;
1025 /* The equivalent short option. */
1026 const char *const equivalent
;
1027 /* Argument info. A string of flag chars; NULL equals no options.
1028 a => argument required.
1029 o => argument optional.
1030 j => join argument to equivalent, making one word.
1031 * => require other text after NAME as an argument. */
1032 const char *const arg_info
;
1035 /* This is the table of mappings. Mappings are tried sequentially
1036 for each option encountered; the first one that matches, wins. */
1038 static const struct option_map option_map
[] =
1040 {"--all-warnings", "-Wall", 0},
1041 {"--ansi", "-ansi", 0},
1042 {"--assemble", "-S", 0},
1043 {"--assert", "-A", "a"},
1044 {"--classpath", "-fclasspath=", "aj"},
1045 {"--bootclasspath", "-fbootclasspath=", "aj"},
1046 {"--CLASSPATH", "-fclasspath=", "aj"},
1047 {"--combine", "-combine", 0},
1048 {"--comments", "-C", 0},
1049 {"--comments-in-macros", "-CC", 0},
1050 {"--compile", "-c", 0},
1051 {"--debug", "-g", "oj"},
1052 {"--define-macro", "-D", "aj"},
1053 {"--dependencies", "-M", 0},
1054 {"--dump", "-d", "a"},
1055 {"--dumpbase", "-dumpbase", "a"},
1056 {"--encoding", "-fencoding=", "aj"},
1057 {"--entry", "-e", 0},
1058 {"--extra-warnings", "-W", 0},
1059 {"--extdirs", "-fextdirs=", "aj"},
1060 {"--for-assembler", "-Wa", "a"},
1061 {"--for-linker", "-Xlinker", "a"},
1062 {"--force-link", "-u", "a"},
1063 {"--coverage", "-coverage", 0},
1064 {"--imacros", "-imacros", "a"},
1065 {"--include", "-include", "a"},
1066 {"--include-barrier", "-I-", 0},
1067 {"--include-directory", "-I", "aj"},
1068 {"--include-directory-after", "-idirafter", "a"},
1069 {"--include-prefix", "-iprefix", "a"},
1070 {"--include-with-prefix", "-iwithprefix", "a"},
1071 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1072 {"--include-with-prefix-after", "-iwithprefix", "a"},
1073 {"--language", "-x", "a"},
1074 {"--library-directory", "-L", "a"},
1075 {"--machine", "-m", "aj"},
1076 {"--machine-", "-m", "*j"},
1077 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1078 {"--no-line-commands", "-P", 0},
1079 {"--no-precompiled-includes", "-noprecomp", 0},
1080 {"--no-standard-includes", "-nostdinc", 0},
1081 {"--no-standard-libraries", "-nostdlib", 0},
1082 {"--no-warnings", "-w", 0},
1083 {"--optimize", "-O", "oj"},
1084 {"--output", "-o", "a"},
1085 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1086 {"--param", "--param", "a"},
1087 {"--pass-exit-codes", "-pass-exit-codes", 0},
1088 {"--pedantic", "-pedantic", 0},
1089 {"--pedantic-errors", "-pedantic-errors", 0},
1090 {"--pie", "-pie", 0},
1091 {"--pipe", "-pipe", 0},
1092 {"--prefix", "-B", "a"},
1093 {"--preprocess", "-E", 0},
1094 {"--print-search-dirs", "-print-search-dirs", 0},
1095 {"--print-file-name", "-print-file-name=", "aj"},
1096 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1097 {"--print-missing-file-dependencies", "-MG", 0},
1098 {"--print-multi-lib", "-print-multi-lib", 0},
1099 {"--print-multi-directory", "-print-multi-directory", 0},
1100 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1101 {"--print-prog-name", "-print-prog-name=", "aj"},
1102 {"--profile", "-p", 0},
1103 {"--profile-blocks", "-a", 0},
1104 {"--quiet", "-q", 0},
1105 {"--resource", "-fcompile-resource=", "aj"},
1106 {"--save-temps", "-save-temps", 0},
1107 {"--shared", "-shared", 0},
1108 {"--silent", "-q", 0},
1109 {"--specs", "-specs=", "aj"},
1110 {"--static", "-static", 0},
1111 {"--std", "-std=", "aj"},
1112 {"--symbolic", "-symbolic", 0},
1113 {"--time", "-time", 0},
1114 {"--trace-includes", "-H", 0},
1115 {"--traditional", "-traditional", 0},
1116 {"--traditional-cpp", "-traditional-cpp", 0},
1117 {"--trigraphs", "-trigraphs", 0},
1118 {"--undefine-macro", "-U", "aj"},
1119 {"--user-dependencies", "-MM", 0},
1120 {"--verbose", "-v", 0},
1121 {"--warn-", "-W", "*j"},
1122 {"--write-dependencies", "-MD", 0},
1123 {"--write-user-dependencies", "-MMD", 0},
1128 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1129 static const struct {
1130 const char *const option_found
;
1131 const char *const replacements
;
1132 } target_option_translations
[] =
1134 TARGET_OPTION_TRANSLATE_TABLE
,
1139 /* Translate the options described by *ARGCP and *ARGVP.
1140 Make a new vector and store it back in *ARGVP,
1141 and store its length in *ARGVC. */
1144 translate_options (int *argcp
, const char *const **argvp
)
1148 const char *const *argv
= *argvp
;
1149 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1150 const char **newv
= xmalloc (newvsize
);
1154 newv
[newindex
++] = argv
[i
++];
1158 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1162 target_option_translations
[tott_idx
].option_found
;
1165 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1172 for (sp
= target_option_translations
[tott_idx
].replacements
;
1179 newvsize
+= spaces
* sizeof (const char *);
1180 newv
= xrealloc (newv
, newvsize
);
1182 sp
= target_option_translations
[tott_idx
].replacements
;
1191 newv
[newindex
++] = np
;
1192 while (*np
!= ' ' && *np
)
1203 if (target_option_translations
[tott_idx
].option_found
)
1207 /* Translate -- options. */
1208 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1211 /* Find a mapping that applies to this option. */
1212 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1214 size_t optlen
= strlen (option_map
[j
].name
);
1215 size_t arglen
= strlen (argv
[i
]);
1216 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1217 const char *arginfo
= option_map
[j
].arg_info
;
1222 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1224 const char *arg
= 0;
1226 if (arglen
< optlen
)
1229 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1230 if (strlen (option_map
[k
].name
) >= arglen
1231 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1233 error ("ambiguous abbreviation %s", argv
[i
]);
1237 if (k
!= ARRAY_SIZE (option_map
))
1241 if (arglen
> optlen
)
1243 /* If the option has an argument, accept that. */
1244 if (argv
[i
][optlen
] == '=')
1245 arg
= argv
[i
] + optlen
+ 1;
1247 /* If this mapping requires extra text at end of name,
1248 accept that as "argument". */
1249 else if (strchr (arginfo
, '*') != 0)
1250 arg
= argv
[i
] + optlen
;
1252 /* Otherwise, extra text at end means mismatch.
1253 Try other mappings. */
1258 else if (strchr (arginfo
, '*') != 0)
1260 error ("incomplete '%s' option", option_map
[j
].name
);
1264 /* Handle arguments. */
1265 if (strchr (arginfo
, 'a') != 0)
1271 error ("missing argument to '%s' option",
1272 option_map
[j
].name
);
1279 else if (strchr (arginfo
, '*') != 0)
1281 else if (strchr (arginfo
, 'o') == 0)
1284 error ("extraneous argument to '%s' option",
1285 option_map
[j
].name
);
1289 /* Store the translation as one argv elt or as two. */
1290 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1291 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1295 newv
[newindex
++] = option_map
[j
].equivalent
;
1296 newv
[newindex
++] = arg
;
1299 newv
[newindex
++] = option_map
[j
].equivalent
;
1307 /* Handle old-fashioned options--just copy them through,
1308 with their arguments. */
1309 else if (argv
[i
][0] == '-')
1311 const char *p
= argv
[i
] + 1;
1315 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1316 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1317 else if (WORD_SWITCH_TAKES_ARG (p
))
1318 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1319 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1322 else if (! strcmp (p
, "Xlinker"))
1324 else if (! strcmp (p
, "Xpreprocessor"))
1326 else if (! strcmp (p
, "Xassembler"))
1329 /* Watch out for an option at the end of the command line that
1330 is missing arguments, and avoid skipping past the end of the
1332 if (nskip
+ i
> argc
)
1337 newv
[newindex
++] = argv
[i
++];
1342 /* Ordinary operands, or +e options. */
1343 newv
[newindex
++] = argv
[i
++];
1353 skip_whitespace (char *p
)
1357 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1358 be considered whitespace. */
1359 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1361 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1375 /* Structures to keep track of prefixes to try when looking for files. */
1379 const char *prefix
; /* String to prepend to the path. */
1380 struct prefix_list
*next
; /* Next in linked list. */
1381 int require_machine_suffix
; /* Don't use without machine_suffix. */
1382 /* 2 means try both machine_suffix and just_machine_suffix. */
1383 int priority
; /* Sort key - priority within list. */
1384 int os_multilib
; /* 1 if OS multilib scheme should be used,
1385 0 for GCC multilib scheme. */
1390 struct prefix_list
*plist
; /* List of prefixes to try */
1391 int max_len
; /* Max length of a prefix in PLIST */
1392 const char *name
; /* Name of this list (used in config stuff) */
1395 /* List of prefixes to try when looking for executables. */
1397 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1399 /* List of prefixes to try when looking for startup (crt0) files. */
1401 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1403 /* List of prefixes to try when looking for include files. */
1405 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1407 /* Suffix to attach to directories searched for commands.
1408 This looks like `MACHINE/VERSION/'. */
1410 static const char *machine_suffix
= 0;
1412 /* Suffix to attach to directories searched for commands.
1413 This is just `MACHINE/'. */
1415 static const char *just_machine_suffix
= 0;
1417 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1419 static const char *gcc_exec_prefix
;
1421 /* Adjusted value of standard_libexec_prefix. */
1423 static const char *gcc_libexec_prefix
;
1425 /* Default prefixes to attach to command names. */
1427 #ifndef STANDARD_STARTFILE_PREFIX_1
1428 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1430 #ifndef STANDARD_STARTFILE_PREFIX_2
1431 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1434 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1435 #undef MD_EXEC_PREFIX
1436 #undef MD_STARTFILE_PREFIX
1437 #undef MD_STARTFILE_PREFIX_1
1440 /* If no prefixes defined, use the null string, which will disable them. */
1441 #ifndef MD_EXEC_PREFIX
1442 #define MD_EXEC_PREFIX ""
1444 #ifndef MD_STARTFILE_PREFIX
1445 #define MD_STARTFILE_PREFIX ""
1447 #ifndef MD_STARTFILE_PREFIX_1
1448 #define MD_STARTFILE_PREFIX_1 ""
1451 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1452 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1453 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1454 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1456 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1457 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1458 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1459 static const char *const standard_startfile_prefix_1
1460 = STANDARD_STARTFILE_PREFIX_1
;
1461 static const char *const standard_startfile_prefix_2
1462 = STANDARD_STARTFILE_PREFIX_2
;
1464 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1465 static const char *tooldir_prefix
;
1467 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1469 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1471 /* Subdirectory to use for locating libraries. Set by
1472 set_multilib_dir based on the compilation options. */
1474 static const char *multilib_dir
;
1476 /* Subdirectory to use for locating libraries in OS conventions. Set by
1477 set_multilib_dir based on the compilation options. */
1479 static const char *multilib_os_dir
;
1481 /* Structure to keep track of the specs that have been defined so far.
1482 These are accessed using %(specname) or %[specname] in a compiler
1487 /* The following 2 fields must be first */
1488 /* to allow EXTRA_SPECS to be initialized */
1489 const char *name
; /* name of the spec. */
1490 const char *ptr
; /* available ptr if no static pointer */
1492 /* The following fields are not initialized */
1493 /* by EXTRA_SPECS */
1494 const char **ptr_spec
; /* pointer to the spec itself. */
1495 struct spec_list
*next
; /* Next spec in linked list. */
1496 int name_len
; /* length of the name */
1497 int alloc_p
; /* whether string was allocated */
1500 #define INIT_STATIC_SPEC(NAME,PTR) \
1501 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1503 /* List of statically defined specs. */
1504 static struct spec_list static_specs
[] =
1506 INIT_STATIC_SPEC ("asm", &asm_spec
),
1507 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1508 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1509 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1510 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1511 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1512 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1513 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1514 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1515 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1516 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1517 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1518 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1519 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1520 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1521 INIT_STATIC_SPEC ("link", &link_spec
),
1522 INIT_STATIC_SPEC ("lib", &lib_spec
),
1523 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1524 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1525 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1526 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1527 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1528 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1529 INIT_STATIC_SPEC ("version", &compiler_version
),
1530 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1531 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1532 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1533 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1534 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1535 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1536 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1537 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1538 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1539 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1540 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1541 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1542 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1543 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1544 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1547 #ifdef EXTRA_SPECS /* additional specs needed */
1548 /* Structure to keep track of just the first two args of a spec_list.
1549 That is all that the EXTRA_SPECS macro gives us. */
1552 const char *const name
;
1553 const char *const ptr
;
1556 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1557 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1560 /* List of dynamically allocates specs that have been defined so far. */
1562 static struct spec_list
*specs
= (struct spec_list
*) 0;
1564 /* List of static spec functions. */
1566 static const struct spec_function static_spec_functions
[] =
1568 { "if-exists", if_exists_spec_function
},
1569 { "if-exists-else", if_exists_else_spec_function
},
1570 { "replace-outfile", replace_outfile_spec_function
},
1574 static int processing_spec_function
;
1576 /* Add appropriate libgcc specs to OBSTACK, taking into account
1577 various permutations of -shared-libgcc, -shared, and such. */
1579 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1581 #ifndef USE_LD_AS_NEEDED
1582 #define USE_LD_AS_NEEDED 0
1586 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1587 const char *static_name
, const char *eh_name
)
1591 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1592 "}%{!static:%{!static-libgcc:",
1593 #if USE_LD_AS_NEEDED
1594 "%{!shared-libgcc:", static_name
,
1595 " --as-needed ", shared_name
, " --no-as-needed}"
1596 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1599 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1600 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1601 static_name
, "}}%{shared:",
1603 "%{shared-libgcc:", shared_name
,
1604 "}%{!shared-libgcc:", static_name
, "}",
1611 obstack_grow (obstack
, buf
, strlen (buf
));
1614 #endif /* ENABLE_SHARED_LIBGCC */
1616 /* Initialize the specs lookup routines. */
1621 struct spec_list
*next
= (struct spec_list
*) 0;
1622 struct spec_list
*sl
= (struct spec_list
*) 0;
1626 return; /* Already initialized. */
1629 notice ("Using built-in specs.\n");
1632 extra_specs
= xcalloc (sizeof (struct spec_list
),
1633 ARRAY_SIZE (extra_specs_1
));
1635 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1637 sl
= &extra_specs
[i
];
1638 sl
->name
= extra_specs_1
[i
].name
;
1639 sl
->ptr
= extra_specs_1
[i
].ptr
;
1641 sl
->name_len
= strlen (sl
->name
);
1642 sl
->ptr_spec
= &sl
->ptr
;
1647 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1648 on ?: in file-scope variable initializations. */
1649 asm_debug
= ASM_DEBUG_SPEC
;
1651 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1653 sl
= &static_specs
[i
];
1658 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1659 /* ??? If neither -shared-libgcc nor --static-libgcc was
1660 seen, then we should be making an educated guess. Some proposed
1661 heuristics for ELF include:
1663 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1664 program will be doing dynamic loading, which will likely
1665 need the shared libgcc.
1667 (2) If "-ldl", then it's also a fair bet that we're doing
1670 (3) For each ET_DYN we're linking against (either through -lfoo
1671 or /some/path/foo.so), check to see whether it or one of
1672 its dependencies depends on a shared libgcc.
1676 If the runtime is fixed to look for program headers instead
1677 of calling __register_frame_info at all, for each object,
1678 use the shared libgcc if any EH symbol referenced.
1680 If crtstuff is fixed to not invoke __register_frame_info
1681 automatically, for each object, use the shared libgcc if
1682 any non-empty unwind section found.
1684 Doing any of this probably requires invoking an external program to
1685 do the actual object file scanning. */
1687 const char *p
= libgcc_spec
;
1690 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1691 when given the proper command line arguments. */
1694 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1696 init_gcc_specs (&obstack
,
1698 #ifdef USE_LIBUNWIND_EXCEPTIONS
1704 #ifdef USE_LIBUNWIND_EXCEPTIONS
1705 # ifdef HAVE_LD_STATIC_DYNAMIC
1706 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1716 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1718 /* Ug. We don't know shared library extensions. Hope that
1719 systems that use this form don't do shared libraries. */
1720 init_gcc_specs (&obstack
,
1724 #ifdef USE_LIBUNWIND_EXCEPTIONS
1733 obstack_1grow (&obstack
, *p
);
1734 in_sep
= (*p
== ' ');
1739 obstack_1grow (&obstack
, '\0');
1740 libgcc_spec
= obstack_finish (&obstack
);
1743 #ifdef USE_AS_TRADITIONAL_FORMAT
1744 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1746 static const char tf
[] = "--traditional-format ";
1747 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1748 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1749 asm_spec
= obstack_finish (&obstack
);
1753 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1754 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1755 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1756 link_spec
= obstack_finish (&obstack
);
1762 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1763 removed; If the spec starts with a + then SPEC is added to the end of the
1767 set_spec (const char *name
, const char *spec
)
1769 struct spec_list
*sl
;
1770 const char *old_spec
;
1771 int name_len
= strlen (name
);
1774 /* If this is the first call, initialize the statically allocated specs. */
1777 struct spec_list
*next
= (struct spec_list
*) 0;
1778 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1780 sl
= &static_specs
[i
];
1787 /* See if the spec already exists. */
1788 for (sl
= specs
; sl
; sl
= sl
->next
)
1789 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1794 /* Not found - make it. */
1795 sl
= xmalloc (sizeof (struct spec_list
));
1796 sl
->name
= xstrdup (name
);
1797 sl
->name_len
= name_len
;
1798 sl
->ptr_spec
= &sl
->ptr
;
1800 *(sl
->ptr_spec
) = "";
1805 old_spec
= *(sl
->ptr_spec
);
1806 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1807 ? concat (old_spec
, spec
+ 1, NULL
)
1812 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1815 /* Free the old spec. */
1816 if (old_spec
&& sl
->alloc_p
)
1817 free ((void *) old_spec
);
1822 /* Accumulate a command (program name and args), and run it. */
1824 /* Vector of pointers to arguments in the current line of specifications. */
1826 static const char **argbuf
;
1828 /* Number of elements allocated in argbuf. */
1830 static int argbuf_length
;
1832 /* Number of elements in argbuf currently in use (containing args). */
1834 static int argbuf_index
;
1836 /* Position in the argbuf array containing the name of the output file
1837 (the value associated with the "-o" flag). */
1839 static int have_o_argbuf_index
= 0;
1841 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1842 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1845 static struct temp_name
{
1846 const char *suffix
; /* suffix associated with the code. */
1847 int length
; /* strlen (suffix). */
1848 int unique
; /* Indicates whether %g or %u/%U was used. */
1849 const char *filename
; /* associated filename. */
1850 int filename_length
; /* strlen (filename). */
1851 struct temp_name
*next
;
1854 /* Number of commands executed so far. */
1856 static int execution_count
;
1858 /* Number of commands that exited with a signal. */
1860 static int signal_count
;
1862 /* Name with which this program was invoked. */
1864 static const char *programname
;
1866 /* Allocate the argument vector. */
1872 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1875 /* Clear out the vector of arguments (after a command is executed). */
1883 /* Add one argument to the vector at the end.
1884 This is done when a space is seen or at the end of the line.
1885 If DELETE_ALWAYS is nonzero, the arg is a filename
1886 and the file should be deleted eventually.
1887 If DELETE_FAILURE is nonzero, the arg is a filename
1888 and the file should be deleted if this compilation fails. */
1891 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1893 if (argbuf_index
+ 1 == argbuf_length
)
1894 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1896 argbuf
[argbuf_index
++] = arg
;
1897 argbuf
[argbuf_index
] = 0;
1899 if (strcmp (arg
, "-o") == 0)
1900 have_o_argbuf_index
= argbuf_index
;
1901 if (delete_always
|| delete_failure
)
1902 record_temp_file (arg
, delete_always
, delete_failure
);
1905 /* Load specs from a file name named FILENAME, replacing occurrences of
1906 various different types of line-endings, \r\n, \n\r and just \r, with
1910 load_specs (const char *filename
)
1914 struct stat statbuf
;
1921 notice ("Reading specs from %s\n", filename
);
1923 /* Open and stat the file. */
1924 desc
= open (filename
, O_RDONLY
, 0);
1926 pfatal_with_name (filename
);
1927 if (stat (filename
, &statbuf
) < 0)
1928 pfatal_with_name (filename
);
1930 /* Read contents of file into BUFFER. */
1931 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1932 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1934 pfatal_with_name (filename
);
1935 buffer
[readlen
] = 0;
1938 specs
= xmalloc (readlen
+ 1);
1940 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1946 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1948 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1962 /* Read compilation specs from a file named FILENAME,
1963 replacing the default ones.
1965 A suffix which starts with `*' is a definition for
1966 one of the machine-specific sub-specs. The "suffix" should be
1967 *asm, *cc1, *cpp, *link, *startfile, etc.
1968 The corresponding spec is stored in asm_spec, etc.,
1969 rather than in the `compilers' vector.
1971 Anything invalid in the file is a fatal error. */
1974 read_specs (const char *filename
, int main_p
)
1979 buffer
= load_specs (filename
);
1981 /* Scan BUFFER for specs, putting them in the vector. */
1987 char *in
, *out
, *p1
, *p2
, *p3
;
1989 /* Advance P in BUFFER to the next nonblank nocomment line. */
1990 p
= skip_whitespace (p
);
1994 /* Is this a special command that starts with '%'? */
1995 /* Don't allow this for the main specs file, since it would
1996 encourage people to overwrite it. */
1997 if (*p
== '%' && !main_p
)
2000 while (*p
&& *p
!= '\n')
2006 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2007 && (p1
[sizeof "%include" - 1] == ' '
2008 || p1
[sizeof "%include" - 1] == '\t'))
2012 p1
+= sizeof ("%include");
2013 while (*p1
== ' ' || *p1
== '\t')
2016 if (*p1
++ != '<' || p
[-2] != '>')
2017 fatal ("specs %%include syntax malformed after %ld characters",
2018 (long) (p1
- buffer
+ 1));
2021 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2022 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2025 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2026 && (p1
[sizeof "%include_noerr" - 1] == ' '
2027 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2031 p1
+= sizeof "%include_noerr";
2032 while (*p1
== ' ' || *p1
== '\t')
2035 if (*p1
++ != '<' || p
[-2] != '>')
2036 fatal ("specs %%include syntax malformed after %ld characters",
2037 (long) (p1
- buffer
+ 1));
2040 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2042 read_specs (new_filename
, FALSE
);
2043 else if (verbose_flag
)
2044 notice ("could not find specs file %s\n", p1
);
2047 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2048 && (p1
[sizeof "%rename" - 1] == ' '
2049 || p1
[sizeof "%rename" - 1] == '\t'))
2052 struct spec_list
*sl
;
2053 struct spec_list
*newsl
;
2055 /* Get original name. */
2056 p1
+= sizeof "%rename";
2057 while (*p1
== ' ' || *p1
== '\t')
2060 if (! ISALPHA ((unsigned char) *p1
))
2061 fatal ("specs %%rename syntax malformed after %ld characters",
2062 (long) (p1
- buffer
));
2065 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2068 if (*p2
!= ' ' && *p2
!= '\t')
2069 fatal ("specs %%rename syntax malformed after %ld characters",
2070 (long) (p2
- buffer
));
2074 while (*p2
== ' ' || *p2
== '\t')
2077 if (! ISALPHA ((unsigned char) *p2
))
2078 fatal ("specs %%rename syntax malformed after %ld characters",
2079 (long) (p2
- buffer
));
2081 /* Get new spec name. */
2083 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2087 fatal ("specs %%rename syntax malformed after %ld characters",
2088 (long) (p3
- buffer
));
2091 for (sl
= specs
; sl
; sl
= sl
->next
)
2092 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2096 fatal ("specs %s spec was not found to be renamed", p1
);
2098 if (strcmp (p1
, p2
) == 0)
2101 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2102 if (strcmp (newsl
->name
, p2
) == 0)
2103 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2108 notice ("rename spec %s to %s\n", p1
, p2
);
2110 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2114 set_spec (p2
, *(sl
->ptr_spec
));
2116 free ((void *) *(sl
->ptr_spec
));
2118 *(sl
->ptr_spec
) = "";
2123 fatal ("specs unknown %% command after %ld characters",
2124 (long) (p1
- buffer
));
2127 /* Find the colon that should end the suffix. */
2129 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2132 /* The colon shouldn't be missing. */
2134 fatal ("specs file malformed after %ld characters",
2135 (long) (p1
- buffer
));
2137 /* Skip back over trailing whitespace. */
2139 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2142 /* Copy the suffix to a string. */
2143 suffix
= save_string (p
, p2
- p
);
2144 /* Find the next line. */
2145 p
= skip_whitespace (p1
+ 1);
2147 fatal ("specs file malformed after %ld characters",
2148 (long) (p
- buffer
));
2151 /* Find next blank line or end of string. */
2152 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2155 /* Specs end at the blank line and do not include the newline. */
2156 spec
= save_string (p
, p1
- p
);
2159 /* Delete backslash-newline sequences from the spec. */
2164 if (in
[0] == '\\' && in
[1] == '\n')
2166 else if (in
[0] == '#')
2167 while (*in
&& *in
!= '\n')
2175 if (suffix
[0] == '*')
2177 if (! strcmp (suffix
, "*link_command"))
2178 link_command_spec
= spec
;
2180 set_spec (suffix
+ 1, spec
);
2184 /* Add this pair to the vector. */
2186 = xrealloc (compilers
,
2187 (n_compilers
+ 2) * sizeof (struct compiler
));
2189 compilers
[n_compilers
].suffix
= suffix
;
2190 compilers
[n_compilers
].spec
= spec
;
2192 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2196 link_command_spec
= spec
;
2199 if (link_command_spec
== 0)
2200 fatal ("spec file has no spec for linking");
2203 /* Record the names of temporary files we tell compilers to write,
2204 and delete them at the end of the run. */
2206 /* This is the common prefix we use to make temp file names.
2207 It is chosen once for each run of this program.
2208 It is substituted into a spec by %g or %j.
2209 Thus, all temp file names contain this prefix.
2210 In practice, all temp file names start with this prefix.
2212 This prefix comes from the envvar TMPDIR if it is defined;
2213 otherwise, from the P_tmpdir macro if that is defined;
2214 otherwise, in /usr/tmp or /tmp;
2215 or finally the current directory if all else fails. */
2217 static const char *temp_filename
;
2219 /* Length of the prefix. */
2221 static int temp_filename_length
;
2223 /* Define the list of temporary files to delete. */
2228 struct temp_file
*next
;
2231 /* Queue of files to delete on success or failure of compilation. */
2232 static struct temp_file
*always_delete_queue
;
2233 /* Queue of files to delete on failure of compilation. */
2234 static struct temp_file
*failure_delete_queue
;
2236 /* Record FILENAME as a file to be deleted automatically.
2237 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2238 otherwise delete it in any case.
2239 FAIL_DELETE nonzero means delete it if a compilation step fails;
2240 otherwise delete it in any case. */
2243 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2245 char *const name
= xstrdup (filename
);
2249 struct temp_file
*temp
;
2250 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2251 if (! strcmp (name
, temp
->name
))
2254 temp
= xmalloc (sizeof (struct temp_file
));
2255 temp
->next
= always_delete_queue
;
2257 always_delete_queue
= temp
;
2264 struct temp_file
*temp
;
2265 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2266 if (! strcmp (name
, temp
->name
))
2269 temp
= xmalloc (sizeof (struct temp_file
));
2270 temp
->next
= failure_delete_queue
;
2272 failure_delete_queue
= temp
;
2278 /* Delete all the temporary files whose names we previously recorded. */
2280 #ifndef DELETE_IF_ORDINARY
2281 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2284 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2285 if (unlink (NAME) < 0) \
2287 perror_with_name (NAME); \
2292 delete_if_ordinary (const char *name
)
2298 printf ("Delete %s? (y or n) ", name
);
2302 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2305 if (i
== 'y' || i
== 'Y')
2307 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2311 delete_temp_files (void)
2313 struct temp_file
*temp
;
2315 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2316 delete_if_ordinary (temp
->name
);
2317 always_delete_queue
= 0;
2320 /* Delete all the files to be deleted on error. */
2323 delete_failure_queue (void)
2325 struct temp_file
*temp
;
2327 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2328 delete_if_ordinary (temp
->name
);
2332 clear_failure_queue (void)
2334 failure_delete_queue
= 0;
2337 /* Build a list of search directories from PATHS.
2338 PREFIX is a string to prepend to the list.
2339 If CHECK_DIR_P is nonzero we ensure the directory exists.
2340 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2341 It is also used by the --print-search-dirs flag. */
2344 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2347 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2349 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2350 int first_time
= TRUE
;
2351 struct prefix_list
*pprefix
;
2353 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2354 obstack_1grow (&collect_obstack
, '=');
2356 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2358 int len
= strlen (pprefix
->prefix
);
2362 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2365 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2368 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2369 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2372 if (just_machine_suffix
2373 && pprefix
->require_machine_suffix
== 2
2375 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2378 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2381 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2382 obstack_grow (&collect_obstack
, just_machine_suffix
,
2386 if (! pprefix
->require_machine_suffix
)
2389 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2392 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2396 obstack_1grow (&collect_obstack
, '\0');
2397 return obstack_finish (&collect_obstack
);
2400 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2404 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2406 putenv (build_search_list (paths
, env_var
, 1));
2409 /* Check whether NAME can be accessed in MODE. This is like access,
2410 except that it never considers directories to be executable. */
2413 access_check (const char *name
, int mode
)
2419 if (stat (name
, &st
) < 0
2420 || S_ISDIR (st
.st_mode
))
2424 return access (name
, mode
);
2427 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2428 access to check permissions.
2429 Return 0 if not found, otherwise return its name, allocated with malloc. */
2432 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2436 const char *const file_suffix
=
2437 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2438 struct prefix_list
*pl
;
2439 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2440 const char *multilib_name
, *multilib_os_name
;
2442 #ifdef DEFAULT_ASSEMBLER
2443 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2444 return xstrdup (DEFAULT_ASSEMBLER
);
2447 #ifdef DEFAULT_LINKER
2448 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2449 return xstrdup (DEFAULT_LINKER
);
2453 len
+= strlen (machine_suffix
);
2455 multilib_name
= name
;
2456 multilib_os_name
= name
;
2457 if (multilib
&& multilib_os_dir
)
2459 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2460 int len2
= strlen (multilib_os_dir
) + 1;
2462 len
+= len1
> len2
? len1
: len2
;
2464 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2466 if (strcmp (multilib_os_dir
, ".") != 0)
2467 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2471 temp
= xmalloc (len
);
2473 /* Determine the filename to execute (special case for absolute paths). */
2475 if (IS_ABSOLUTE_PATH (name
))
2477 if (access (name
, mode
) == 0)
2479 strcpy (temp
, name
);
2484 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2486 const char *this_name
2487 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2491 /* Some systems have a suffix for executable files.
2492 So try appending that first. */
2493 if (file_suffix
[0] != 0)
2495 strcpy (temp
, pl
->prefix
);
2496 strcat (temp
, machine_suffix
);
2497 strcat (temp
, multilib_name
);
2498 strcat (temp
, file_suffix
);
2499 if (access_check (temp
, mode
) == 0)
2503 /* Now try just the multilib_name. */
2504 strcpy (temp
, pl
->prefix
);
2505 strcat (temp
, machine_suffix
);
2506 strcat (temp
, multilib_name
);
2507 if (access_check (temp
, mode
) == 0)
2511 /* Certain prefixes are tried with just the machine type,
2512 not the version. This is used for finding as, ld, etc. */
2513 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2515 /* Some systems have a suffix for executable files.
2516 So try appending that first. */
2517 if (file_suffix
[0] != 0)
2519 strcpy (temp
, pl
->prefix
);
2520 strcat (temp
, just_machine_suffix
);
2521 strcat (temp
, multilib_name
);
2522 strcat (temp
, file_suffix
);
2523 if (access_check (temp
, mode
) == 0)
2527 strcpy (temp
, pl
->prefix
);
2528 strcat (temp
, just_machine_suffix
);
2529 strcat (temp
, multilib_name
);
2530 if (access_check (temp
, mode
) == 0)
2534 /* Certain prefixes can't be used without the machine suffix
2535 when the machine or version is explicitly specified. */
2536 if (! pl
->require_machine_suffix
)
2538 /* Some systems have a suffix for executable files.
2539 So try appending that first. */
2540 if (file_suffix
[0] != 0)
2542 strcpy (temp
, pl
->prefix
);
2543 strcat (temp
, this_name
);
2544 strcat (temp
, file_suffix
);
2545 if (access_check (temp
, mode
) == 0)
2549 strcpy (temp
, pl
->prefix
);
2550 strcat (temp
, this_name
);
2551 if (access_check (temp
, mode
) == 0)
2560 /* Ranking of prefixes in the sort list. -B prefixes are put before
2563 enum path_prefix_priority
2565 PREFIX_PRIORITY_B_OPT
,
2566 PREFIX_PRIORITY_LAST
2569 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2570 order according to PRIORITY. Within each PRIORITY, new entries are
2573 If WARN is nonzero, we will warn if no file is found
2574 through this prefix. WARN should point to an int
2575 which will be set to 1 if this entry is used.
2577 COMPONENT is the value to be passed to update_path.
2579 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2580 the complete value of machine_suffix.
2581 2 means try both machine_suffix and just_machine_suffix. */
2584 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2585 const char *component
, /* enum prefix_priority */ int priority
,
2586 int require_machine_suffix
, int os_multilib
)
2588 struct prefix_list
*pl
, **prev
;
2591 for (prev
= &pprefix
->plist
;
2592 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2593 prev
= &(*prev
)->next
)
2596 /* Keep track of the longest prefix. */
2598 prefix
= update_path (prefix
, component
);
2599 len
= strlen (prefix
);
2600 if (len
> pprefix
->max_len
)
2601 pprefix
->max_len
= len
;
2603 pl
= xmalloc (sizeof (struct prefix_list
));
2604 pl
->prefix
= prefix
;
2605 pl
->require_machine_suffix
= require_machine_suffix
;
2606 pl
->priority
= priority
;
2607 pl
->os_multilib
= os_multilib
;
2609 /* Insert after PREV. */
2614 /* Same as add_prefix, but prepending target_system_root to prefix. */
2616 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2617 const char *component
,
2618 /* enum prefix_priority */ int priority
,
2619 int require_machine_suffix
, int os_multilib
)
2621 if (!IS_ABSOLUTE_PATH (prefix
))
2622 fatal ("system path '%s' is not absolute", prefix
);
2624 if (target_system_root
)
2626 if (target_sysroot_suffix
)
2627 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2628 prefix
= concat (target_system_root
, prefix
, NULL
);
2630 /* We have to override this because GCC's notion of sysroot
2631 moves along with GCC. */
2635 add_prefix (pprefix
, prefix
, component
, priority
,
2636 require_machine_suffix
, os_multilib
);
2639 /* Execute the command specified by the arguments on the current line of spec.
2640 When using pipes, this includes several piped-together commands
2641 with `|' between them.
2643 Return 0 if successful, -1 if failed. */
2649 int n_commands
; /* # of command. */
2651 struct pex_obj
*pex
;
2654 const char *prog
; /* program name. */
2655 const char **argv
; /* vector of args. */
2658 struct command
*commands
; /* each command buffer with above info. */
2660 gcc_assert (!processing_spec_function
);
2662 /* Count # of piped commands. */
2663 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2664 if (strcmp (argbuf
[i
], "|") == 0)
2667 /* Get storage for each command. */
2668 commands
= alloca (n_commands
* sizeof (struct command
));
2670 /* Split argbuf into its separate piped processes,
2671 and record info about each one.
2672 Also search for the programs that are to be run. */
2674 commands
[0].prog
= argbuf
[0]; /* first command. */
2675 commands
[0].argv
= &argbuf
[0];
2676 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2679 commands
[0].argv
[0] = string
;
2681 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2682 if (strcmp (argbuf
[i
], "|") == 0)
2683 { /* each command. */
2684 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2685 fatal ("-pipe not supported");
2687 argbuf
[i
] = 0; /* termination of command args. */
2688 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2689 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2690 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2693 commands
[n_commands
].argv
[0] = string
;
2697 argbuf
[argbuf_index
] = 0;
2699 /* If -v, print what we are about to do, and maybe query. */
2703 /* For help listings, put a blank line between sub-processes. */
2704 if (print_help_list
)
2705 fputc ('\n', stderr
);
2707 /* Print each piped command as a separate line. */
2708 for (i
= 0; i
< n_commands
; i
++)
2710 const char *const *j
;
2712 if (verbose_only_flag
)
2714 for (j
= commands
[i
].argv
; *j
; j
++)
2717 fprintf (stderr
, " \"");
2718 for (p
= *j
; *p
; ++p
)
2720 if (*p
== '"' || *p
== '\\' || *p
== '$')
2721 fputc ('\\', stderr
);
2724 fputc ('"', stderr
);
2728 for (j
= commands
[i
].argv
; *j
; j
++)
2729 fprintf (stderr
, " %s", *j
);
2731 /* Print a pipe symbol after all but the last command. */
2732 if (i
+ 1 != n_commands
)
2733 fprintf (stderr
, " |");
2734 fprintf (stderr
, "\n");
2737 if (verbose_only_flag
!= 0)
2739 /* verbose_only_flag should act as if the spec was
2740 executed, so increment execution_count before
2741 returning. This prevents spurious warnings about
2742 unused linker input files, etc. */
2747 notice ("\nGo ahead? (y or n) ");
2751 while (getchar () != '\n')
2754 if (i
!= 'y' && i
!= 'Y')
2759 #ifdef ENABLE_VALGRIND_CHECKING
2760 /* Run the each command through valgrind. To simplify prepending the
2761 path to valgrind and the option "-q" (for quiet operation unless
2762 something triggers), we allocate a separate argv array. */
2764 for (i
= 0; i
< n_commands
; i
++)
2770 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2773 argv
= alloca ((argc
+ 3) * sizeof (char *));
2775 argv
[0] = VALGRIND_PATH
;
2777 for (j
= 2; j
< argc
+ 2; j
++)
2778 argv
[j
] = commands
[i
].argv
[j
- 2];
2781 commands
[i
].argv
= argv
;
2782 commands
[i
].prog
= argv
[0];
2786 /* Run each piped subprocess. */
2788 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2789 programname
, temp_filename
);
2791 pfatal_with_name (_("pex_init failed"));
2793 for (i
= 0; i
< n_commands
; i
++)
2797 const char *string
= commands
[i
].argv
[0];
2799 errmsg
= pex_run (pex
,
2800 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2801 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2802 string
, (char * const *) commands
[i
].argv
,
2811 pfatal_with_name (errmsg
);
2815 if (string
!= commands
[i
].prog
)
2816 free ((void *) string
);
2821 /* Wait for all the subprocesses to finish. */
2825 struct pex_time
*times
= NULL
;
2828 statuses
= alloca (n_commands
* sizeof (int));
2829 if (!pex_get_status (pex
, n_commands
, statuses
))
2830 pfatal_with_name (_("failed to get exit status"));
2834 times
= alloca (n_commands
* sizeof (struct pex_time
));
2835 if (!pex_get_times (pex
, n_commands
, times
))
2836 pfatal_with_name (_("failed to get process times"));
2841 for (i
= 0; i
< n_commands
; ++i
)
2843 int status
= statuses
[i
];
2845 if (WIFSIGNALED (status
))
2848 /* SIGPIPE is a special case. It happens in -pipe mode
2849 when the compiler dies before the preprocessor is done,
2850 or the assembler dies before the compiler is done.
2851 There's generally been an error already, and this is
2852 just fallout. So don't generate another error unless
2853 we would otherwise have succeeded. */
2854 if (WTERMSIG (status
) == SIGPIPE
2855 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2860 Internal error: %s (program %s)\n\
2861 Please submit a full bug report.\n\
2862 See %s for instructions.",
2863 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
2868 else if (WIFEXITED (status
)
2869 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2871 if (WEXITSTATUS (status
) > greatest_status
)
2872 greatest_status
= WEXITSTATUS (status
);
2878 struct pex_time
*pt
= ×
[i
];
2881 ut
= ((double) pt
->user_seconds
2882 + (double) pt
->user_microseconds
/ 1.0e6
);
2883 st
= ((double) pt
->system_seconds
2884 + (double) pt
->system_microseconds
/ 1.0e6
);
2887 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
2895 /* Find all the switches given to us
2896 and make a vector describing them.
2897 The elements of the vector are strings, one per switch given.
2898 If a switch uses following arguments, then the `part1' field
2899 is the switch itself and the `args' field
2900 is a null-terminated vector containing the following arguments.
2901 The `live_cond' field is:
2903 1 if the switch is true in a conditional spec,
2904 -1 if false (overridden by a later switch)
2905 -2 if this switch should be ignored (used in %<S)
2906 The `validated' field is nonzero if any spec has looked at this switch;
2907 if it remains zero at the end of the run, it must be meaningless. */
2910 #define SWITCH_FALSE -1
2911 #define SWITCH_IGNORE -2
2912 #define SWITCH_LIVE 1
2919 unsigned char validated
;
2920 unsigned char ordering
;
2923 static struct switchstr
*switches
;
2925 static int n_switches
;
2930 const char *language
;
2931 struct compiler
*incompiler
;
2936 /* Also a vector of input files specified. */
2938 static struct infile
*infiles
;
2942 /* True if multiple input files are being compiled to a single
2945 static bool combine_inputs
;
2947 /* This counts the number of libraries added by lang_specific_driver, so that
2948 we can tell if there were any user supplied any files or libraries. */
2950 static int added_libraries
;
2952 /* And a vector of corresponding output files is made up later. */
2954 const char **outfiles
;
2956 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2958 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2959 is true if we should look for an executable suffix. DO_OBJ
2960 is true if we should look for an object suffix. */
2963 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2964 int do_obj ATTRIBUTE_UNUSED
)
2966 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2974 len
= strlen (name
);
2976 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2977 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2978 if (do_obj
&& len
> 2
2979 && name
[len
- 2] == '.'
2980 && name
[len
- 1] == 'o')
2982 obstack_grow (&obstack
, name
, len
- 2);
2983 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2984 name
= obstack_finish (&obstack
);
2988 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2989 /* If there is no filetype, make it the executable suffix (which includes
2990 the "."). But don't get confused if we have just "-o". */
2991 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2994 for (i
= len
- 1; i
>= 0; i
--)
2995 if (IS_DIR_SEPARATOR (name
[i
]))
2998 for (i
++; i
< len
; i
++)
3002 obstack_grow (&obstack
, name
, len
);
3003 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3004 strlen (TARGET_EXECUTABLE_SUFFIX
));
3005 name
= obstack_finish (&obstack
);
3012 /* Display the command line switches accepted by gcc. */
3016 printf (_("Usage: %s [options] file...\n"), programname
);
3017 fputs (_("Options:\n"), stdout
);
3019 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3020 fputs (_(" --help Display this information\n"), stdout
);
3021 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3023 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3024 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3025 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3026 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3027 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3028 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3029 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3030 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3031 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3033 -print-multi-lib Display the mapping between command line options and\n\
3034 multiple library search directories\n"), stdout
);
3035 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3036 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3037 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3038 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3039 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3040 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3041 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3042 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3043 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3044 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3045 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3046 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3047 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3048 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3049 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3050 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3051 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3052 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3053 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3054 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3055 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3056 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3058 -x <language> Specify the language of the following input files\n\
3059 Permissible languages include: c c++ assembler none\n\
3060 'none' means revert to the default behavior of\n\
3061 guessing the language based on the file's extension\n\
3065 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3066 passed on to the various sub-processes invoked by %s. In order to pass\n\
3067 other options on to these processes the -W<letter> options must be used.\n\
3070 /* The rest of the options are displayed by invocations of the various
3075 add_preprocessor_option (const char *option
, int len
)
3077 n_preprocessor_options
++;
3079 if (! preprocessor_options
)
3080 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3082 preprocessor_options
= xrealloc (preprocessor_options
,
3083 n_preprocessor_options
* sizeof (char *));
3085 preprocessor_options
[n_preprocessor_options
- 1] =
3086 save_string (option
, len
);
3090 add_assembler_option (const char *option
, int len
)
3092 n_assembler_options
++;
3094 if (! assembler_options
)
3095 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3097 assembler_options
= xrealloc (assembler_options
,
3098 n_assembler_options
* sizeof (char *));
3100 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3104 add_linker_option (const char *option
, int len
)
3108 if (! linker_options
)
3109 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3111 linker_options
= xrealloc (linker_options
,
3112 n_linker_options
* sizeof (char *));
3114 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3117 /* Create the vector `switches' and its contents.
3118 Store its length in `n_switches'. */
3121 process_command (int argc
, const char **argv
)
3126 const char *spec_lang
= 0;
3127 int last_language_n_infiles
;
3129 int lang_n_infiles
= 0;
3130 #ifdef MODIFY_TARGET_NAME
3131 int is_modify_target_name
;
3135 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3139 added_libraries
= 0;
3141 /* Figure compiler version from version string. */
3143 compiler_version
= temp1
= xstrdup (version_string
);
3145 for (; *temp1
; ++temp1
)
3154 /* If there is a -V or -b option (or both), process it now, before
3155 trying to interpret the rest of the command line. */
3156 if (argc
> 1 && argv
[1][0] == '-'
3157 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3159 const char *new_version
= DEFAULT_TARGET_VERSION
;
3160 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3161 const char *progname
= argv
[0];
3166 while (argc
> 1 && argv
[1][0] == '-'
3167 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3169 char opt
= argv
[1][1];
3171 if (argv
[1][2] != '\0')
3184 fatal ("'-%c' option must have argument", opt
);
3191 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3192 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3194 new_argv0
= xmemdup (progname
, baselen
,
3195 baselen
+ concat_length (new_version
, new_machine
,
3196 "-gcc-", NULL
) + 1);
3197 strcpy (new_argv0
+ baselen
, new_machine
);
3198 strcat (new_argv0
, "-gcc-");
3199 strcat (new_argv0
, new_version
);
3201 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3202 (argc
+ 1) * sizeof (argv
[0]));
3203 new_argv
[0] = new_argv0
;
3205 execvp (new_argv0
, new_argv
);
3206 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3209 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3210 see if we can create it from the pathname specified in argv[0]. */
3212 gcc_libexec_prefix
= standard_libexec_prefix
;
3214 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3215 if (!gcc_exec_prefix
)
3217 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3218 standard_exec_prefix
);
3219 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3220 standard_bindir_prefix
,
3221 standard_libexec_prefix
);
3222 if (gcc_exec_prefix
)
3223 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3226 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3227 standard_exec_prefix
,
3228 standard_libexec_prefix
);
3232 if (gcc_exec_prefix
)
3234 int len
= strlen (gcc_exec_prefix
);
3236 if (len
> (int) sizeof ("/lib/gcc/") - 1
3237 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3239 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3240 if (IS_DIR_SEPARATOR (*temp
)
3241 && strncmp (temp
+ 1, "lib", 3) == 0
3242 && IS_DIR_SEPARATOR (temp
[4])
3243 && strncmp (temp
+ 5, "gcc", 3) == 0)
3244 len
-= sizeof ("/lib/gcc/") - 1;
3247 set_std_prefix (gcc_exec_prefix
, len
);
3248 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3249 PREFIX_PRIORITY_LAST
, 0, 0);
3250 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3251 PREFIX_PRIORITY_LAST
, 0, 0);
3254 /* COMPILER_PATH and LIBRARY_PATH have values
3255 that are lists of directory names with colons. */
3257 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3260 const char *startp
, *endp
;
3261 char *nstore
= alloca (strlen (temp
) + 3);
3263 startp
= endp
= temp
;
3266 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3268 strncpy (nstore
, startp
, endp
- startp
);
3270 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3271 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3273 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3274 nstore
[endp
- startp
+ 1] = 0;
3277 nstore
[endp
- startp
] = 0;
3278 add_prefix (&exec_prefixes
, nstore
, 0,
3279 PREFIX_PRIORITY_LAST
, 0, 0);
3280 add_prefix (&include_prefixes
, nstore
, 0,
3281 PREFIX_PRIORITY_LAST
, 0, 0);
3284 endp
= startp
= endp
+ 1;
3291 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3292 if (temp
&& *cross_compile
== '0')
3294 const char *startp
, *endp
;
3295 char *nstore
= alloca (strlen (temp
) + 3);
3297 startp
= endp
= temp
;
3300 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3302 strncpy (nstore
, startp
, endp
- startp
);
3304 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3305 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3307 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3308 nstore
[endp
- startp
+ 1] = 0;
3311 nstore
[endp
- startp
] = 0;
3312 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3313 PREFIX_PRIORITY_LAST
, 0, 1);
3316 endp
= startp
= endp
+ 1;
3323 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3324 GET_ENVIRONMENT (temp
, "LPATH");
3325 if (temp
&& *cross_compile
== '0')
3327 const char *startp
, *endp
;
3328 char *nstore
= alloca (strlen (temp
) + 3);
3330 startp
= endp
= temp
;
3333 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3335 strncpy (nstore
, startp
, endp
- startp
);
3337 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3338 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3340 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3341 nstore
[endp
- startp
+ 1] = 0;
3344 nstore
[endp
- startp
] = 0;
3345 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3346 PREFIX_PRIORITY_LAST
, 0, 1);
3349 endp
= startp
= endp
+ 1;
3356 /* Convert new-style -- options to old-style. */
3357 translate_options (&argc
, (const char *const **) &argv
);
3359 /* Do language-specific adjustment/addition of flags. */
3360 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3362 /* Scan argv twice. Here, the first time, just count how many switches
3363 there will be in their vector, and how many input files in theirs.
3364 Here we also parse the switches that cc itself uses (e.g. -v). */
3366 for (i
= 1; i
< argc
; i
++)
3368 if (! strcmp (argv
[i
], "-dumpspecs"))
3370 struct spec_list
*sl
;
3372 for (sl
= specs
; sl
; sl
= sl
->next
)
3373 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3374 if (link_command_spec
)
3375 printf ("*link_command:\n%s\n\n", link_command_spec
);
3378 else if (! strcmp (argv
[i
], "-dumpversion"))
3380 printf ("%s\n", spec_version
);
3383 else if (! strcmp (argv
[i
], "-dumpmachine"))
3385 printf ("%s\n", spec_machine
);
3388 else if (strcmp (argv
[i
], "-fversion") == 0)
3390 /* translate_options () has turned --version into -fversion. */
3391 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3392 printf ("Copyright %s 2005 Free Software Foundation, Inc.\n",
3394 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3395 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3399 else if (strcmp (argv
[i
], "-fhelp") == 0)
3401 /* translate_options () has turned --help into -fhelp. */
3402 print_help_list
= 1;
3404 /* We will be passing a dummy file on to the sub-processes. */
3408 /* CPP driver cannot obtain switch from cc1_options. */
3410 add_preprocessor_option ("--help", 6);
3411 add_assembler_option ("--help", 6);
3412 add_linker_option ("--help", 6);
3414 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3416 /* translate_options() has turned --target-help into -ftarget-help. */
3417 target_help_flag
= 1;
3419 /* We will be passing a dummy file on to the sub-processes. */
3423 /* CPP driver cannot obtain switch from cc1_options. */
3425 add_preprocessor_option ("--target-help", 13);
3426 add_assembler_option ("--target-help", 13);
3427 add_linker_option ("--target-help", 13);
3429 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3431 pass_exit_codes
= 1;
3434 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3435 print_search_dirs
= 1;
3436 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3437 print_file_name
= "libgcc.a";
3438 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3439 print_file_name
= argv
[i
] + 17;
3440 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3441 print_prog_name
= argv
[i
] + 17;
3442 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3443 print_multi_lib
= 1;
3444 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3445 print_multi_directory
= 1;
3446 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3447 print_multi_os_directory
= 1;
3448 else if (! strncmp (argv
[i
], "-Wa,", 4))
3451 /* Pass the rest of this option to the assembler. */
3453 /* Split the argument at commas. */
3455 for (j
= 4; argv
[i
][j
]; j
++)
3456 if (argv
[i
][j
] == ',')
3458 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3462 /* Record the part after the last comma. */
3463 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3465 else if (! strncmp (argv
[i
], "-Wp,", 4))
3468 /* Pass the rest of this option to the preprocessor. */
3470 /* Split the argument at commas. */
3472 for (j
= 4; argv
[i
][j
]; j
++)
3473 if (argv
[i
][j
] == ',')
3475 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3479 /* Record the part after the last comma. */
3480 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3482 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3483 /* The +e options to the C++ front-end. */
3485 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3488 /* Split the argument at commas. */
3489 for (j
= 3; argv
[i
][j
]; j
++)
3490 n_infiles
+= (argv
[i
][j
] == ',');
3492 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3495 fatal ("argument to '-Xlinker' is missing");
3500 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3503 fatal ("argument to '-Xpreprocessor' is missing");
3505 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3507 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3510 fatal ("argument to '-Xassembler' is missing");
3512 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3514 else if (strcmp (argv
[i
], "-l") == 0)
3517 fatal ("argument to '-l' is missing");
3522 else if (strncmp (argv
[i
], "-l", 2) == 0)
3524 else if (strcmp (argv
[i
], "-save-temps") == 0)
3526 save_temps_flag
= 1;
3529 else if (strcmp (argv
[i
], "-combine") == 0)
3534 else if (strcmp (argv
[i
], "-specs") == 0)
3536 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3538 fatal ("argument to '-specs' is missing");
3540 user
->next
= (struct user_specs
*) 0;
3541 user
->filename
= argv
[i
];
3542 if (user_specs_tail
)
3543 user_specs_tail
->next
= user
;
3545 user_specs_head
= user
;
3546 user_specs_tail
= user
;
3548 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3550 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3551 if (strlen (argv
[i
]) == 7)
3552 fatal ("argument to '-specs=' is missing");
3554 user
->next
= (struct user_specs
*) 0;
3555 user
->filename
= argv
[i
] + 7;
3556 if (user_specs_tail
)
3557 user_specs_tail
->next
= user
;
3559 user_specs_head
= user
;
3560 user_specs_tail
= user
;
3562 else if (strcmp (argv
[i
], "-time") == 0)
3564 else if (strcmp (argv
[i
], "-pipe") == 0)
3566 /* -pipe has to go into the switches array as well as
3571 else if (strcmp (argv
[i
], "-###") == 0)
3573 /* This is similar to -v except that there is no execution
3574 of the commands and the echoed arguments are quoted. It
3575 is intended for use in shell scripts to capture the
3576 driver-generated command line. */
3577 verbose_only_flag
++;
3580 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3582 const char *p
= &argv
[i
][1];
3589 fatal ("'-%c' must come at the start of the command line", c
);
3597 if (p
[1] == 0 && i
+ 1 == argc
)
3598 fatal ("argument to '-B' is missing");
3604 len
= strlen (value
);
3606 /* Catch the case where the user has forgotten to append a
3607 directory separator to the path. Note, they may be using
3608 -B to add an executable name prefix, eg "i386-elf-", in
3609 order to distinguish between multiple installations of
3610 GCC in the same directory. Hence we must check to see
3611 if appending a directory separator actually makes a
3612 valid directory name. */
3613 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3614 && is_directory (value
, "", 0))
3616 char *tmp
= xmalloc (len
+ 2);
3617 strcpy (tmp
, value
);
3618 tmp
[len
] = DIR_SEPARATOR
;
3623 /* As a kludge, if the arg is "[foo/]stageN/", just
3624 add "[foo/]include" to the include prefix. */
3627 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3628 && strncmp (value
+ len
- 7, "stage", 5) == 0
3629 && ISDIGIT (value
[len
- 2])
3630 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3633 add_prefix (&include_prefixes
, "./", NULL
,
3634 PREFIX_PRIORITY_B_OPT
, 0, 0);
3637 char *string
= xmalloc (len
- 6);
3638 memcpy (string
, value
, len
- 7);
3639 string
[len
- 7] = 0;
3640 add_prefix (&include_prefixes
, string
, NULL
,
3641 PREFIX_PRIORITY_B_OPT
, 0, 0);
3645 add_prefix (&exec_prefixes
, value
, NULL
,
3646 PREFIX_PRIORITY_B_OPT
, 0, 0);
3647 add_prefix (&startfile_prefixes
, value
, NULL
,
3648 PREFIX_PRIORITY_B_OPT
, 0, 0);
3649 add_prefix (&include_prefixes
, value
, NULL
,
3650 PREFIX_PRIORITY_B_OPT
, 0, 0);
3655 case 'v': /* Print our subcommands and print versions. */
3657 /* If they do anything other than exactly `-v', don't set
3658 verbose_flag; rather, continue on to give the error. */
3675 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3680 /* Forward scan, just in case -S or -c is specified
3687 if (argv
[j
][0] == '-')
3689 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3695 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3696 j
+= skip
- (argv
[j
][2] != 0);
3697 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3704 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3706 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3708 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3715 #ifdef MODIFY_TARGET_NAME
3716 is_modify_target_name
= 0;
3718 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3719 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3721 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3722 + strlen (spec_machine
));
3725 int made_addition
= 0;
3727 is_modify_target_name
= 1;
3728 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3730 if (modify_target
[j
].add_del
== DELETE
3731 && (! strncmp (q
, modify_target
[j
].str
,
3732 strlen (modify_target
[j
].str
))))
3733 p
+= strlen (modify_target
[j
].str
);
3734 else if (modify_target
[j
].add_del
== ADD
3735 && ! made_addition
&& *p
== '-')
3737 for (r
= modify_target
[j
].str
; *r
!= 0; )
3745 spec_machine
= new_name
;
3748 if (is_modify_target_name
)
3754 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3755 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3756 else if (WORD_SWITCH_TAKES_ARG (p
))
3757 i
+= WORD_SWITCH_TAKES_ARG (p
);
3767 if (save_temps_flag
&& use_pipes
)
3769 /* -save-temps overrides -pipe, so that temp files are produced */
3770 if (save_temps_flag
)
3771 error ("warning: -pipe ignored because -save-temps specified");
3775 /* Set up the search paths before we go looking for config files. */
3777 /* These come before the md prefixes so that we will find gcc's subcommands
3778 (such as cpp) rather than those of the host system. */
3779 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3780 as well as trying the machine and the version. */
3782 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3783 PREFIX_PRIORITY_LAST
, 1, 0);
3784 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3785 PREFIX_PRIORITY_LAST
, 2, 0);
3786 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3787 PREFIX_PRIORITY_LAST
, 2, 0);
3788 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3789 PREFIX_PRIORITY_LAST
, 2, 0);
3790 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3791 PREFIX_PRIORITY_LAST
, 2, 0);
3794 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3795 PREFIX_PRIORITY_LAST
, 1, 0);
3796 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3797 PREFIX_PRIORITY_LAST
, 1, 0);
3799 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3800 dir_separator_str
, NULL
);
3802 /* If tooldir is relative, base it on exec_prefixes. A relative
3803 tooldir lets us move the installed tree as a unit.
3805 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3806 directories, so that we can search both the user specified directory
3807 and the standard place. */
3809 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3811 if (gcc_exec_prefix
)
3813 char *gcc_exec_tooldir_prefix
3814 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3815 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3817 add_prefix (&exec_prefixes
,
3818 concat (gcc_exec_tooldir_prefix
, "bin",
3819 dir_separator_str
, NULL
),
3820 NULL
, PREFIX_PRIORITY_LAST
, 0, 0);
3821 add_prefix (&startfile_prefixes
,
3822 concat (gcc_exec_tooldir_prefix
, "lib",
3823 dir_separator_str
, NULL
),
3824 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
3827 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3828 dir_separator_str
, spec_version
,
3829 dir_separator_str
, tooldir_prefix
, NULL
);
3832 add_prefix (&exec_prefixes
,
3833 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3834 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3835 add_prefix (&startfile_prefixes
,
3836 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3837 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3839 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3840 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3841 then consider it to relocate with the rest of the GCC installation
3842 if GCC_EXEC_PREFIX is set.
3843 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3844 if (target_system_root
&& gcc_exec_prefix
)
3846 char *tmp_prefix
= make_relative_prefix (argv
[0],
3847 standard_bindir_prefix
,
3848 target_system_root
);
3849 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3851 target_system_root
= tmp_prefix
;
3852 target_system_root_changed
= 1;
3857 /* More prefixes are enabled in main, after we read the specs file
3858 and determine whether this is cross-compilation or not. */
3860 /* Then create the space for the vectors and scan again. */
3862 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3863 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3866 last_language_n_infiles
= -1;
3868 /* This, time, copy the text of each switch and store a pointer
3869 to the copy in the vector of switches.
3870 Store all the infiles in their vector. */
3872 for (i
= 1; i
< argc
; i
++)
3874 /* Just skip the switches that were handled by the preceding loop. */
3875 #ifdef MODIFY_TARGET_NAME
3876 is_modify_target_name
= 0;
3878 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3879 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3880 is_modify_target_name
= 1;
3882 if (is_modify_target_name
)
3886 if (! strncmp (argv
[i
], "-Wa,", 4))
3888 else if (! strncmp (argv
[i
], "-Wp,", 4))
3890 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3892 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3894 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3896 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3898 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3900 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3902 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3904 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3906 else if (! strcmp (argv
[i
], "-ftarget-help"))
3908 else if (! strcmp (argv
[i
], "-fhelp"))
3910 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3912 /* Compensate for the +e options to the C++ front-end;
3913 they're there simply for cfront call-compatibility. We do
3914 some magic in default_compilers to pass them down properly.
3915 Note we deliberately start at the `+' here, to avoid passing
3916 -e0 or -e1 down into the linker. */
3917 switches
[n_switches
].part1
= &argv
[i
][0];
3918 switches
[n_switches
].args
= 0;
3919 switches
[n_switches
].live_cond
= SWITCH_OK
;
3920 switches
[n_switches
].validated
= 0;
3923 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3926 /* Split the argument at commas. */
3928 for (j
= 4; argv
[i
][j
]; j
++)
3929 if (argv
[i
][j
] == ',')
3931 infiles
[n_infiles
].language
= "*";
3932 infiles
[n_infiles
++].name
3933 = save_string (argv
[i
] + prev
, j
- prev
);
3936 /* Record the part after the last comma. */
3937 infiles
[n_infiles
].language
= "*";
3938 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3940 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3942 infiles
[n_infiles
].language
= "*";
3943 infiles
[n_infiles
++].name
= argv
[++i
];
3945 /* Xassembler and Xpreprocessor were already handled in the first argv
3946 scan, so all we need to do here is ignore them and their argument. */
3947 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3949 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3951 else if (strcmp (argv
[i
], "-l") == 0)
3952 { /* POSIX allows separation of -l and the lib arg;
3953 canonicalize by concatenating -l with its arg */
3954 infiles
[n_infiles
].language
= "*";
3955 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3957 else if (strncmp (argv
[i
], "-l", 2) == 0)
3959 infiles
[n_infiles
].language
= "*";
3960 infiles
[n_infiles
++].name
= argv
[i
];
3962 else if (strcmp (argv
[i
], "-specs") == 0)
3964 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3966 else if (strcmp (argv
[i
], "-time") == 0)
3968 else if (strcmp (argv
[i
], "-###") == 0)
3970 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3972 const char *p
= &argv
[i
][1];
3977 if (p
[1] == 0 && i
+ 1 == argc
)
3978 fatal ("argument to '-x' is missing");
3980 spec_lang
= argv
[++i
];
3983 if (! strcmp (spec_lang
, "none"))
3984 /* Suppress the warning if -xnone comes after the last input
3985 file, because alternate command interfaces like g++ might
3986 find it useful to place -xnone after each input file. */
3989 last_language_n_infiles
= n_infiles
;
3992 switches
[n_switches
].part1
= p
;
3993 /* Deal with option arguments in separate argv elements. */
3994 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3995 || WORD_SWITCH_TAKES_ARG (p
))
3998 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4002 /* Count only the option arguments in separate argv elements. */
4003 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4005 if (i
+ n_args
>= argc
)
4006 fatal ("argument to '-%s' is missing", p
);
4007 switches
[n_switches
].args
4008 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4010 switches
[n_switches
].args
[j
++] = argv
[++i
];
4011 /* Null-terminate the vector. */
4012 switches
[n_switches
].args
[j
] = 0;
4014 else if (strchr (switches_need_spaces
, c
))
4016 /* On some systems, ld cannot handle some options without
4017 a space. So split the option from its argument. */
4018 char *part1
= xmalloc (2);
4022 switches
[n_switches
].part1
= part1
;
4023 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4024 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4025 switches
[n_switches
].args
[1] = 0;
4028 switches
[n_switches
].args
= 0;
4030 switches
[n_switches
].live_cond
= SWITCH_OK
;
4031 switches
[n_switches
].validated
= 0;
4032 switches
[n_switches
].ordering
= 0;
4033 /* These are always valid, since gcc.c itself understands them. */
4034 if (!strcmp (p
, "save-temps")
4035 || !strcmp (p
, "static-libgcc")
4036 || !strcmp (p
, "shared-libgcc")
4037 || !strcmp (p
, "pipe"))
4038 switches
[n_switches
].validated
= 1;
4041 char ch
= switches
[n_switches
].part1
[0];
4043 switches
[n_switches
].validated
= 1;
4049 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4050 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4053 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4055 perror_with_name (argv
[i
]);
4060 infiles
[n_infiles
].language
= spec_lang
;
4061 infiles
[n_infiles
++].name
= argv
[i
];
4066 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4067 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4069 /* Ensure we only invoke each subprocess once. */
4070 if (target_help_flag
|| print_help_list
)
4074 /* Create a dummy input file, so that we can pass --target-help on to
4075 the various sub-processes. */
4076 infiles
[0].language
= "c";
4077 infiles
[0].name
= "help-dummy";
4079 if (target_help_flag
)
4081 switches
[n_switches
].part1
= "--target-help";
4082 switches
[n_switches
].args
= 0;
4083 switches
[n_switches
].live_cond
= SWITCH_OK
;
4084 switches
[n_switches
].validated
= 0;
4089 if (print_help_list
)
4091 switches
[n_switches
].part1
= "--help";
4092 switches
[n_switches
].args
= 0;
4093 switches
[n_switches
].live_cond
= SWITCH_OK
;
4094 switches
[n_switches
].validated
= 0;
4100 switches
[n_switches
].part1
= 0;
4101 infiles
[n_infiles
].name
= 0;
4104 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4105 and place that in the environment. */
4108 set_collect_gcc_options (void)
4113 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4115 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4116 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4119 for (i
= 0; (int) i
< n_switches
; i
++)
4121 const char *const *args
;
4124 obstack_grow (&collect_obstack
, " ", 1);
4128 /* Ignore elided switches. */
4129 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4132 obstack_grow (&collect_obstack
, "'-", 2);
4133 q
= switches
[i
].part1
;
4134 while ((p
= strchr (q
, '\'')))
4136 obstack_grow (&collect_obstack
, q
, p
- q
);
4137 obstack_grow (&collect_obstack
, "'\\''", 4);
4140 obstack_grow (&collect_obstack
, q
, strlen (q
));
4141 obstack_grow (&collect_obstack
, "'", 1);
4143 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4145 obstack_grow (&collect_obstack
, " '", 2);
4147 while ((p
= strchr (q
, '\'')))
4149 obstack_grow (&collect_obstack
, q
, p
- q
);
4150 obstack_grow (&collect_obstack
, "'\\''", 4);
4153 obstack_grow (&collect_obstack
, q
, strlen (q
));
4154 obstack_grow (&collect_obstack
, "'", 1);
4157 obstack_grow (&collect_obstack
, "\0", 1);
4158 putenv (obstack_finish (&collect_obstack
));
4161 /* Process a spec string, accumulating and running commands. */
4163 /* These variables describe the input file name.
4164 input_file_number is the index on outfiles of this file,
4165 so that the output file name can be stored for later use by %o.
4166 input_basename is the start of the part of the input file
4167 sans all directory names, and basename_length is the number
4168 of characters starting there excluding the suffix .c or whatever. */
4170 static const char *input_filename
;
4171 static int input_file_number
;
4172 size_t input_filename_length
;
4173 static int basename_length
;
4174 static int suffixed_basename_length
;
4175 static const char *input_basename
;
4176 static const char *input_suffix
;
4177 #ifndef HOST_LACKS_INODE_NUMBERS
4178 static struct stat input_stat
;
4180 static int input_stat_set
;
4182 /* The compiler used to process the current input file. */
4183 static struct compiler
*input_file_compiler
;
4185 /* These are variables used within do_spec and do_spec_1. */
4187 /* Nonzero if an arg has been started and not yet terminated
4188 (with space, tab or newline). */
4189 static int arg_going
;
4191 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4192 is a temporary file name. */
4193 static int delete_this_arg
;
4195 /* Nonzero means %w has been seen; the next arg to be terminated
4196 is the output file name of this compilation. */
4197 static int this_is_output_file
;
4199 /* Nonzero means %s has been seen; the next arg to be terminated
4200 is the name of a library file and we should try the standard
4201 search dirs for it. */
4202 static int this_is_library_file
;
4204 /* Nonzero means that the input of this command is coming from a pipe. */
4205 static int input_from_pipe
;
4207 /* Nonnull means substitute this for any suffix when outputting a switches
4209 static const char *suffix_subst
;
4211 /* Process the spec SPEC and run the commands specified therein.
4212 Returns 0 if the spec is successfully processed; -1 if failed. */
4215 do_spec (const char *spec
)
4219 value
= do_spec_2 (spec
);
4221 /* Force out any unfinished command.
4222 If -pipe, this forces out the last command if it ended in `|'. */
4225 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4228 set_collect_gcc_options ();
4230 if (argbuf_index
> 0)
4238 do_spec_2 (const char *spec
)
4245 delete_this_arg
= 0;
4246 this_is_output_file
= 0;
4247 this_is_library_file
= 0;
4248 input_from_pipe
= 0;
4249 suffix_subst
= NULL
;
4251 result
= do_spec_1 (spec
, 0, NULL
);
4253 /* End any pending argument. */
4256 obstack_1grow (&obstack
, 0);
4257 string
= obstack_finish (&obstack
);
4258 if (this_is_library_file
)
4259 string
= find_file (string
);
4260 store_arg (string
, delete_this_arg
, this_is_output_file
);
4261 if (this_is_output_file
)
4262 outfiles
[input_file_number
] = string
;
4270 /* Process the given spec string and add any new options to the end
4271 of the switches/n_switches array. */
4274 do_option_spec (const char *name
, const char *spec
)
4276 unsigned int i
, value_count
, value_len
;
4277 const char *p
, *q
, *value
;
4278 char *tmp_spec
, *tmp_spec_p
;
4280 if (configure_default_options
[0].name
== NULL
)
4283 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4284 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4286 if (i
== ARRAY_SIZE (configure_default_options
))
4289 value
= configure_default_options
[i
].value
;
4290 value_len
= strlen (value
);
4292 /* Compute the size of the final spec. */
4295 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4301 /* Replace each %(VALUE) by the specified value. */
4302 tmp_spec
= alloca (strlen (spec
) + 1
4303 + value_count
* (value_len
- strlen ("%(VALUE)")));
4304 tmp_spec_p
= tmp_spec
;
4306 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4308 memcpy (tmp_spec_p
, q
, p
- q
);
4309 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4310 memcpy (tmp_spec_p
, value
, value_len
);
4311 tmp_spec_p
+= value_len
;
4312 q
= p
+ strlen ("%(VALUE)");
4314 strcpy (tmp_spec_p
, q
);
4316 do_self_spec (tmp_spec
);
4319 /* Process the given spec string and add any new options to the end
4320 of the switches/n_switches array. */
4323 do_self_spec (const char *spec
)
4326 do_spec_1 (" ", 0, NULL
);
4328 if (argbuf_index
> 0)
4333 n_switches
+= argbuf_index
;
4334 switches
= xrealloc (switches
,
4335 sizeof (struct switchstr
) * (n_switches
+ 1));
4337 switches
[n_switches
] = switches
[first
];
4338 for (i
= 0; i
< argbuf_index
; i
++)
4340 struct switchstr
*sw
;
4342 /* Each switch should start with '-'. */
4343 if (argbuf
[i
][0] != '-')
4344 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4346 sw
= &switches
[i
+ first
];
4347 sw
->part1
= &argbuf
[i
][1];
4349 sw
->live_cond
= SWITCH_OK
;
4357 do_spec_path (struct prefix_list
*pl
, const char *option
,
4358 int omit_if_relative
, int separate_options
,
4360 const char *dir_for_machine_suffix
,
4361 const char *dir_for_no_suffix
)
4363 static size_t bufsize
= 0;
4364 static char *buffer
;
4366 bool multilib_p
= false;
4368 /* Used on systems which record the specified -L dirs
4369 and use them to search for dynamic linking. */
4370 /* Relative directories always come from -B,
4371 and it is better not to use them for searching
4372 at run time. In particular, stage1 loses. */
4373 if (omit_if_relative
4374 && !IS_ABSOLUTE_PATH (pl
->prefix
))
4377 /* Try subdirectory if there is one. */
4378 if (machine_suffix
&& dir_for_machine_suffix
)
4380 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4382 bufsize
= (strlen (pl
->prefix
)
4383 + strlen (machine_suffix
)) * 2 + 1;
4384 buffer
= xrealloc (buffer
, bufsize
);
4385 strcpy (buffer
, pl
->prefix
);
4386 strcat (buffer
, machine_suffix
);
4387 if (is_directory (buffer
, dir_for_machine_suffix
, 1))
4390 do_spec_1 (option
, separate_options
, NULL
);
4391 if (separate_options
)
4392 do_spec_1 (" ", 0, NULL
);
4393 do_spec_1 (buffer
, 1, NULL
);
4394 do_spec_1 (dir_for_machine_suffix
, 1, NULL
);
4395 /* Make this a separate argument. */
4396 do_spec_1 (" ", 0, NULL
);
4399 if (!pl
->require_machine_suffix
&& dir_for_no_suffix
)
4401 if (is_directory (pl
->prefix
, dir_for_no_suffix
, 1))
4404 do_spec_1 (option
, separate_options
, NULL
);
4405 if (separate_options
)
4406 do_spec_1 (" ", 0, NULL
);
4407 do_spec_1 (pl
->prefix
, 1, NULL
);
4408 do_spec_1 (dir_for_no_suffix
, 1, NULL
);
4409 /* Make this a separate argument. */
4410 do_spec_1 (" ", 0, NULL
);
4414 if (only_subdir
|| multilib_p
)
4419 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4421 do_spec_1 (option
, separate_options
, NULL
);
4422 if (separate_options
)
4423 do_spec_1 (" ", 0, NULL
);
4424 do_spec_1 (pl
->prefix
, 1, NULL
);
4425 /* Remove slash from machine_suffix. */
4426 if (strlen (machine_suffix
) >= bufsize
)
4427 bufsize
= strlen (machine_suffix
) * 2 + 1;
4428 buffer
= xrealloc (buffer
, bufsize
);
4429 strcpy (buffer
, machine_suffix
);
4430 idx
= strlen (buffer
);
4431 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4432 buffer
[idx
- 1] = 0;
4433 do_spec_1 (buffer
, 1, NULL
);
4434 /* Make this a separate argument. */
4435 do_spec_1 (" ", 0, NULL
);
4438 if (!pl
->require_machine_suffix
)
4440 if (is_directory (pl
->prefix
, "", 1))
4442 do_spec_1 (option
, separate_options
, NULL
);
4443 if (separate_options
)
4444 do_spec_1 (" ", 0, NULL
);
4445 /* Remove slash from pl->prefix. */
4446 if (strlen (pl
->prefix
) >= bufsize
)
4447 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4448 buffer
= xrealloc (buffer
, bufsize
);
4449 strcpy (buffer
, pl
->prefix
);
4450 idx
= strlen (buffer
);
4451 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4452 buffer
[idx
- 1] = 0;
4453 do_spec_1 (buffer
, 1, NULL
);
4454 /* Make this a separate argument. */
4455 do_spec_1 (" ", 0, NULL
);
4460 /* Process the sub-spec SPEC as a portion of a larger spec.
4461 This is like processing a whole spec except that we do
4462 not initialize at the beginning and we do not supply a
4463 newline by default at the end.
4464 INSWITCH nonzero means don't process %-sequences in SPEC;
4465 in this case, % is treated as an ordinary character.
4466 This is used while substituting switches.
4467 INSWITCH nonzero also causes SPC not to terminate an argument.
4469 Value is zero unless a line was finished
4470 and the command on that line reported an error. */
4473 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4475 const char *p
= spec
;
4482 /* If substituting a switch, treat all chars like letters.
4483 Otherwise, NL, SPC, TAB and % are special. */
4484 switch (inswitch
? 'a' : c
)
4487 /* End of line: finish any pending argument,
4488 then run the pending command if one has been started. */
4491 obstack_1grow (&obstack
, 0);
4492 string
= obstack_finish (&obstack
);
4493 if (this_is_library_file
)
4494 string
= find_file (string
);
4495 store_arg (string
, delete_this_arg
, this_is_output_file
);
4496 if (this_is_output_file
)
4497 outfiles
[input_file_number
] = string
;
4501 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4503 /* A `|' before the newline means use a pipe here,
4504 but only if -pipe was specified.
4505 Otherwise, execute now and don't pass the `|' as an arg. */
4508 input_from_pipe
= 1;
4515 set_collect_gcc_options ();
4517 if (argbuf_index
> 0)
4523 /* Reinitialize for a new command, and for a new argument. */
4526 delete_this_arg
= 0;
4527 this_is_output_file
= 0;
4528 this_is_library_file
= 0;
4529 input_from_pipe
= 0;
4533 /* End any pending argument. */
4536 obstack_1grow (&obstack
, 0);
4537 string
= obstack_finish (&obstack
);
4538 if (this_is_library_file
)
4539 string
= find_file (string
);
4540 store_arg (string
, delete_this_arg
, this_is_output_file
);
4541 if (this_is_output_file
)
4542 outfiles
[input_file_number
] = string
;
4546 obstack_1grow (&obstack
, c
);
4552 /* Space or tab ends an argument if one is pending. */
4555 obstack_1grow (&obstack
, 0);
4556 string
= obstack_finish (&obstack
);
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
;
4563 /* Reinitialize for a new argument. */
4565 delete_this_arg
= 0;
4566 this_is_output_file
= 0;
4567 this_is_library_file
= 0;
4574 fatal ("spec '%s' invalid", spec
);
4577 obstack_grow (&obstack
, input_basename
, basename_length
);
4582 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4587 delete_this_arg
= 2;
4590 /* Dump out the directories specified with LIBRARY_PATH,
4591 followed by the absolute directories
4592 that we search for startfiles. */
4595 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4597 for (; pl
; pl
= pl
->next
)
4599 const char *no_suffix_multilib_dir
;
4601 no_suffix_multilib_dir
= pl
->os_multilib
? multilib_os_dir
4603 /* Do not separate options, include non-multilibbed variant. */
4604 do_spec_path (pl
, "-L",
4605 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4610 0, 0, multilib_dir
, no_suffix_multilib_dir
);
4616 /* %efoo means report an error with `foo' as error message
4617 and don't execute any more commands for this file. */
4621 while (*p
!= 0 && *p
!= '\n')
4623 buf
= alloca (p
- q
+ 1);
4624 strncpy (buf
, q
, p
- q
);
4631 /* %nfoo means report a notice with `foo' on stderr. */
4635 while (*p
!= 0 && *p
!= '\n')
4637 buf
= alloca (p
- q
+ 1);
4638 strncpy (buf
, q
, p
- q
);
4640 notice ("%s\n", buf
);
4650 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4651 defined, and it is not a directory, and it is
4652 writable, use it. Otherwise, treat this like any
4653 other temporary file. */
4655 if ((!save_temps_flag
)
4656 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4657 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4659 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4660 strlen (HOST_BIT_BUCKET
));
4661 delete_this_arg
= 0;
4666 goto create_temp_file
;
4670 obstack_1grow (&obstack
, '-');
4671 delete_this_arg
= 0;
4674 /* consume suffix */
4675 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4677 if (p
[0] == '%' && p
[1] == 'O')
4682 goto create_temp_file
;
4686 /* consume suffix */
4687 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4689 if (p
[0] == '%' && p
[1] == 'O')
4694 goto create_temp_file
;
4700 struct temp_name
*t
;
4702 const char *suffix
= p
;
4703 char *saved_suffix
= NULL
;
4705 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4707 suffix_length
= p
- suffix
;
4708 if (p
[0] == '%' && p
[1] == 'O')
4711 /* We don't support extra suffix characters after %O. */
4712 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4713 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4714 if (suffix_length
== 0)
4715 suffix
= TARGET_OBJECT_SUFFIX
;
4719 = xmalloc (suffix_length
4720 + strlen (TARGET_OBJECT_SUFFIX
));
4721 strncpy (saved_suffix
, suffix
, suffix_length
);
4722 strcpy (saved_suffix
+ suffix_length
,
4723 TARGET_OBJECT_SUFFIX
);
4725 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4728 /* If the input_filename has the same suffix specified
4729 for the %g, %u, or %U, and -save-temps is specified,
4730 we could end up using that file as an intermediate
4731 thus clobbering the user's source file (.e.g.,
4732 gcc -save-temps foo.s would clobber foo.s with the
4733 output of cpp0). So check for this condition and
4734 generate a temp file as the intermediate. */
4736 if (save_temps_flag
)
4738 temp_filename_length
= basename_length
+ suffix_length
;
4739 temp_filename
= alloca (temp_filename_length
+ 1);
4740 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4741 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4743 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4744 if (strcmp (temp_filename
, input_filename
) != 0)
4746 #ifndef HOST_LACKS_INODE_NUMBERS
4747 struct stat st_temp
;
4749 /* Note, set_input() resets input_stat_set to 0. */
4750 if (input_stat_set
== 0)
4752 input_stat_set
= stat (input_filename
, &input_stat
);
4753 if (input_stat_set
>= 0)
4757 /* If we have the stat for the input_filename
4758 and we can do the stat for the temp_filename
4759 then the they could still refer to the same
4760 file if st_dev/st_ino's are the same. */
4761 if (input_stat_set
!= 1
4762 || stat (temp_filename
, &st_temp
) < 0
4763 || input_stat
.st_dev
!= st_temp
.st_dev
4764 || input_stat
.st_ino
!= st_temp
.st_ino
)
4766 /* Just compare canonical pathnames. */
4767 char* input_realname
= lrealpath (input_filename
);
4768 char* temp_realname
= lrealpath (temp_filename
);
4769 bool files_differ
= strcmp (input_realname
, temp_realname
);
4770 free (input_realname
);
4771 free (temp_realname
);
4775 temp_filename
= save_string (temp_filename
,
4776 temp_filename_length
+ 1);
4777 obstack_grow (&obstack
, temp_filename
,
4778 temp_filename_length
);
4780 delete_this_arg
= 0;
4786 /* See if we already have an association of %g/%u/%U and
4788 for (t
= temp_names
; t
; t
= t
->next
)
4789 if (t
->length
== suffix_length
4790 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4791 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4794 /* Make a new association if needed. %u and %j
4796 if (t
== 0 || c
== 'u' || c
== 'j')
4800 t
= xmalloc (sizeof (struct temp_name
));
4801 t
->next
= temp_names
;
4804 t
->length
= suffix_length
;
4807 t
->suffix
= saved_suffix
;
4808 saved_suffix
= NULL
;
4811 t
->suffix
= save_string (suffix
, suffix_length
);
4812 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4813 temp_filename
= make_temp_file (t
->suffix
);
4814 temp_filename_length
= strlen (temp_filename
);
4815 t
->filename
= temp_filename
;
4816 t
->filename_length
= temp_filename_length
;
4820 free (saved_suffix
);
4822 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4823 delete_this_arg
= 1;
4831 for (i
= 0; (int) i
< n_infiles
; i
++)
4832 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4833 if (infiles
[i
].incompiler
== input_file_compiler
)
4835 store_arg (infiles
[i
].name
, 0, 0);
4836 infiles
[i
].compiled
= true;
4841 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4848 struct prefix_list
*pl
= include_prefixes
.plist
;
4850 if (gcc_exec_prefix
)
4852 do_spec_1 ("-iprefix", 1, NULL
);
4853 /* Make this a separate argument. */
4854 do_spec_1 (" ", 0, NULL
);
4855 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4856 do_spec_1 (" ", 0, NULL
);
4859 if (target_system_root_changed
||
4860 (target_system_root
&& target_sysroot_hdrs_suffix
))
4862 do_spec_1 ("-isysroot", 1, NULL
);
4863 /* Make this a separate argument. */
4864 do_spec_1 (" ", 0, NULL
);
4865 do_spec_1 (target_system_root
, 1, NULL
);
4866 if (target_sysroot_hdrs_suffix
)
4867 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4868 do_spec_1 (" ", 0, NULL
);
4871 for (; pl
; pl
= pl
->next
)
4872 /* Separate options, don't include non-suffixed variant. */
4873 do_spec_path (pl
, "-isystem", 0, 1, 1, "include", "include");
4879 int max
= n_infiles
;
4880 max
+= lang_specific_extra_outfiles
;
4882 for (i
= 0; i
< max
; i
++)
4884 store_arg (outfiles
[i
], 0, 0);
4889 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4894 this_is_library_file
= 1;
4898 outfiles
[input_file_number
] = NULL
;
4902 this_is_output_file
= 1;
4907 int cur_index
= argbuf_index
;
4908 /* Handle the {...} following the %W. */
4910 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
4911 p
= handle_braces (p
+ 1);
4914 /* End any pending argument. */
4917 obstack_1grow (&obstack
, 0);
4918 string
= obstack_finish (&obstack
);
4919 if (this_is_library_file
)
4920 string
= find_file (string
);
4921 store_arg (string
, delete_this_arg
, this_is_output_file
);
4922 if (this_is_output_file
)
4923 outfiles
[input_file_number
] = string
;
4926 /* If any args were output, mark the last one for deletion
4928 if (argbuf_index
!= cur_index
)
4929 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4933 /* %x{OPTION} records OPTION for %X to output. */
4939 /* Skip past the option value and make a copy. */
4941 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
4944 string
= save_string (p1
+ 1, p
- p1
- 2);
4946 /* See if we already recorded this option. */
4947 for (i
= 0; i
< n_linker_options
; i
++)
4948 if (! strcmp (string
, linker_options
[i
]))
4954 /* This option is new; add it. */
4955 add_linker_option (string
, strlen (string
));
4959 /* Dump out the options accumulated previously using %x. */
4961 for (i
= 0; i
< n_linker_options
; i
++)
4963 do_spec_1 (linker_options
[i
], 1, NULL
);
4964 /* Make each accumulated option a separate argument. */
4965 do_spec_1 (" ", 0, NULL
);
4969 /* Dump out the options accumulated previously using -Wa,. */
4971 for (i
= 0; i
< n_assembler_options
; i
++)
4973 do_spec_1 (assembler_options
[i
], 1, NULL
);
4974 /* Make each accumulated option a separate argument. */
4975 do_spec_1 (" ", 0, NULL
);
4979 /* Dump out the options accumulated previously using -Wp,. */
4981 for (i
= 0; i
< n_preprocessor_options
; i
++)
4983 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4984 /* Make each accumulated option a separate argument. */
4985 do_spec_1 (" ", 0, NULL
);
4989 /* Here are digits and numbers that just process
4990 a certain constant string as a spec. */
4993 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4999 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5005 value
= do_spec_1 (asm_spec
, 0, NULL
);
5011 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5018 const char *const spec
5019 = (input_file_compiler
->cpp_spec
5020 ? input_file_compiler
->cpp_spec
5022 value
= do_spec_1 (spec
, 0, NULL
);
5029 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5035 value
= do_spec_1 (link_spec
, 0, NULL
);
5041 value
= do_spec_1 (lib_spec
, 0, NULL
);
5047 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5053 /* We assume there is a directory
5054 separator at the end of this string. */
5055 if (target_system_root
)
5057 obstack_grow (&obstack
, target_system_root
,
5058 strlen (target_system_root
));
5059 if (target_sysroot_suffix
)
5060 obstack_grow (&obstack
, target_sysroot_suffix
,
5061 strlen (target_sysroot_suffix
));
5066 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5071 /* Here we define characters other than letters and digits. */
5074 p
= handle_braces (p
);
5080 p
= handle_spec_function (p
);
5086 obstack_1grow (&obstack
, '%');
5093 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5095 suffix_subst
= save_string (p
- 1, len
+ 1);
5100 /* Henceforth ignore the option(s) matching the pattern
5105 int have_wildcard
= 0;
5108 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5111 if (p
[len
-1] == '*')
5114 for (i
= 0; i
< n_switches
; i
++)
5115 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5116 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5118 switches
[i
].live_cond
= SWITCH_IGNORE
;
5119 switches
[i
].validated
= 1;
5127 if (soft_matched_part
)
5129 do_spec_1 (soft_matched_part
, 1, NULL
);
5130 do_spec_1 (" ", 0, NULL
);
5133 /* Catch the case where a spec string contains something like
5134 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5135 hand side of the :. */
5136 error ("spec failure: '%%*' has not been initialized by pattern match");
5139 /* Process a string found as the value of a spec given by name.
5140 This feature allows individual machine descriptions
5141 to add and use their own specs.
5142 %[...] modifies -D options the way %P does;
5143 %(...) uses the spec unmodified. */
5145 error ("warning: use of obsolete %%[ operator in specs");
5148 const char *name
= p
;
5149 struct spec_list
*sl
;
5152 /* The string after the S/P is the name of a spec that is to be
5154 while (*p
&& *p
!= ')' && *p
!= ']')
5157 /* See if it's in the list. */
5158 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5159 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5161 name
= *(sl
->ptr_spec
);
5163 notice ("Processing spec %c%s%c, which is '%s'\n",
5164 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5173 value
= do_spec_1 (name
, 0, NULL
);
5179 char *x
= alloca (strlen (name
) * 2 + 1);
5181 const char *y
= name
;
5184 /* Copy all of NAME into BUF, but put __ after
5185 every -D and at the end of each arg. */
5188 if (! strncmp (y
, "-D", 2))
5199 && (*y
== ' ' || *y
== '\t' || *y
== '='
5200 || *y
== '}' || *y
== 0))
5213 value
= do_spec_1 (buf
, 0, NULL
);
5219 /* Discard the closing paren or bracket. */
5226 error ("spec failure: unrecognized spec option '%c'", c
);
5232 /* Backslash: treat next character as ordinary. */
5237 /* Ordinary character: put it into the current argument. */
5238 obstack_1grow (&obstack
, c
);
5242 /* End of string. If we are processing a spec function, we need to
5243 end any pending argument. */
5244 if (processing_spec_function
&& arg_going
)
5246 obstack_1grow (&obstack
, 0);
5247 string
= obstack_finish (&obstack
);
5248 if (this_is_library_file
)
5249 string
= find_file (string
);
5250 store_arg (string
, delete_this_arg
, this_is_output_file
);
5251 if (this_is_output_file
)
5252 outfiles
[input_file_number
] = string
;
5259 /* Look up a spec function. */
5261 static const struct spec_function
*
5262 lookup_spec_function (const char *name
)
5264 static const struct spec_function
* const spec_function_tables
[] =
5266 static_spec_functions
,
5267 lang_specific_spec_functions
,
5269 const struct spec_function
*sf
;
5272 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5274 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5275 if (strcmp (sf
->name
, name
) == 0)
5282 /* Evaluate a spec function. */
5285 eval_spec_function (const char *func
, const char *args
)
5287 const struct spec_function
*sf
;
5288 const char *funcval
;
5290 /* Saved spec processing context. */
5291 int save_argbuf_index
;
5292 int save_argbuf_length
;
5293 const char **save_argbuf
;
5296 int save_delete_this_arg
;
5297 int save_this_is_output_file
;
5298 int save_this_is_library_file
;
5299 int save_input_from_pipe
;
5300 const char *save_suffix_subst
;
5303 sf
= lookup_spec_function (func
);
5305 fatal ("unknown spec function '%s'", func
);
5307 /* Push the spec processing context. */
5308 save_argbuf_index
= argbuf_index
;
5309 save_argbuf_length
= argbuf_length
;
5310 save_argbuf
= argbuf
;
5312 save_arg_going
= arg_going
;
5313 save_delete_this_arg
= delete_this_arg
;
5314 save_this_is_output_file
= this_is_output_file
;
5315 save_this_is_library_file
= this_is_library_file
;
5316 save_input_from_pipe
= input_from_pipe
;
5317 save_suffix_subst
= suffix_subst
;
5319 /* Create a new spec processing context, and build the function
5323 if (do_spec_2 (args
) < 0)
5324 fatal ("error in args to spec function '%s'", func
);
5326 /* argbuf_index is an index for the next argument to be inserted, and
5327 so contains the count of the args already inserted. */
5329 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5331 /* Pop the spec processing context. */
5332 argbuf_index
= save_argbuf_index
;
5333 argbuf_length
= save_argbuf_length
;
5335 argbuf
= save_argbuf
;
5337 arg_going
= save_arg_going
;
5338 delete_this_arg
= save_delete_this_arg
;
5339 this_is_output_file
= save_this_is_output_file
;
5340 this_is_library_file
= save_this_is_library_file
;
5341 input_from_pipe
= save_input_from_pipe
;
5342 suffix_subst
= save_suffix_subst
;
5347 /* Handle a spec function call of the form:
5351 ARGS is processed as a spec in a separate context and split into an
5352 argument vector in the normal fashion. The function returns a string
5353 containing a spec which we then process in the caller's context, or
5354 NULL if no processing is required. */
5357 handle_spec_function (const char *p
)
5360 const char *endp
, *funcval
;
5363 processing_spec_function
++;
5365 /* Get the function name. */
5366 for (endp
= p
; *endp
!= '\0'; endp
++)
5368 if (*endp
== '(') /* ) */
5370 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5371 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5372 fatal ("malformed spec function name");
5374 if (*endp
!= '(') /* ) */
5375 fatal ("no arguments for spec function");
5376 func
= save_string (p
, endp
- p
);
5379 /* Get the arguments. */
5380 for (count
= 0; *endp
!= '\0'; endp
++)
5389 else if (*endp
== '(') /* ) */
5394 fatal ("malformed spec function arguments");
5395 args
= save_string (p
, endp
- p
);
5398 /* p now points to just past the end of the spec function expression. */
5400 funcval
= eval_spec_function (func
, args
);
5401 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5407 processing_spec_function
--;
5412 /* Inline subroutine of handle_braces. Returns true if the current
5413 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5415 input_suffix_matches (const char *atom
, const char *end_atom
)
5417 /* We special case the semantics of {.s:...} and {.S:...} and their
5418 negative variants. Instead of testing the input filename suffix,
5419 we test whether the input source file is an assembler file or an
5420 assembler-with-cpp file respectively. This allows us to correctly
5421 handle the -x command line option. */
5423 if (atom
+ 1 == end_atom
5424 && input_file_compiler
5425 && input_file_compiler
->suffix
)
5428 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5430 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5433 return (input_suffix
5434 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5435 && input_suffix
[end_atom
- atom
] == '\0');
5438 /* Inline subroutine of handle_braces. Returns true if a switch
5439 matching the atom bracketed by ATOM and END_ATOM appeared on the
5442 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5445 int len
= end_atom
- atom
;
5446 int plen
= starred
? len
: -1;
5448 for (i
= 0; i
< n_switches
; i
++)
5449 if (!strncmp (switches
[i
].part1
, atom
, len
)
5450 && (starred
|| switches
[i
].part1
[len
] == '\0')
5451 && check_live_switch (i
, plen
))
5457 /* Inline subroutine of handle_braces. Mark all of the switches which
5458 match ATOM (extends to END_ATOM; STARRED indicates whether there
5459 was a star after the atom) for later processing. */
5461 mark_matching_switches (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
))
5471 switches
[i
].ordering
= 1;
5474 /* Inline subroutine of handle_braces. Process all the currently
5475 marked switches through give_switch, and clear the marks. */
5477 process_marked_switches (void)
5481 for (i
= 0; i
< n_switches
; i
++)
5482 if (switches
[i
].ordering
== 1)
5484 switches
[i
].ordering
= 0;
5489 /* Handle a %{ ... } construct. P points just inside the leading {.
5490 Returns a pointer one past the end of the brace block, or 0
5491 if we call do_spec_1 and that returns -1. */
5494 handle_braces (const char *p
)
5496 const char *atom
, *end_atom
;
5497 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5498 const char *orig
= p
;
5505 bool a_must_be_last
= false;
5506 bool ordered_set
= false;
5507 bool disjunct_set
= false;
5508 bool disj_matched
= false;
5509 bool disj_starred
= true;
5510 bool n_way_choice
= false;
5511 bool n_way_matched
= false;
5513 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5520 /* Scan one "atom" (S in the description above of %{}, possibly
5521 with !, ., or * modifiers). */
5522 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5526 p
++, a_is_negated
= true;
5530 p
++, a_is_suffix
= true;
5533 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5534 || *p
== ',' || *p
== '.' || *p
== '@')
5539 p
++, a_is_starred
= 1;
5545 /* Substitute the switch(es) indicated by the current atom. */
5547 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5548 || atom
== end_atom
)
5551 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5554 process_marked_switches ();
5558 /* Substitute some text if the current atom appears as a switch
5560 disjunct_set
= true;
5564 if (atom
== end_atom
)
5566 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5567 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5570 /* An empty term may appear as the last choice of an
5571 N-way choice set; it means "otherwise". */
5572 a_must_be_last
= true;
5573 disj_matched
= !n_way_matched
;
5574 disj_starred
= false;
5578 if (a_is_suffix
&& a_is_starred
)
5582 disj_starred
= false;
5584 /* Don't bother testing this atom if we already have a
5586 if (!disj_matched
&& !n_way_matched
)
5589 a_matched
= input_suffix_matches (atom
, end_atom
);
5591 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5593 if (a_matched
!= a_is_negated
)
5595 disj_matched
= true;
5597 d_end_atom
= end_atom
;
5604 /* Found the body, that is, the text to substitute if the
5605 current disjunction matches. */
5606 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5607 disj_matched
&& !n_way_matched
);
5611 /* If we have an N-way choice, reset state for the next
5615 n_way_choice
= true;
5616 n_way_matched
|= disj_matched
;
5617 disj_matched
= false;
5618 disj_starred
= true;
5619 d_atom
= d_end_atom
= NULL
;
5628 while (*p
++ != '}');
5633 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5638 /* Subroutine of handle_braces. Scan and process a brace substitution body
5639 (X in the description of %{} syntax). P points one past the colon;
5640 ATOM and END_ATOM bracket the first atom which was found to be true
5641 (present) in the current disjunction; STARRED indicates whether all
5642 the atoms in the current disjunction were starred (for syntax validation);
5643 MATCHED indicates whether the disjunction matched or not, and therefore
5644 whether or not the body is to be processed through do_spec_1 or just
5645 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5649 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5650 int starred
, int matched
)
5652 const char *body
, *end_body
;
5653 unsigned int nesting_level
;
5654 bool have_subst
= false;
5656 /* Locate the closing } or ;, honoring nested braces.
5657 Trim trailing whitespace. */
5666 if (!--nesting_level
)
5669 else if (*p
== ';' && nesting_level
== 1)
5671 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5673 else if (*p
== '\0')
5679 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5682 if (have_subst
&& !starred
)
5687 /* Copy the substitution body to permanent storage and execute it.
5688 If have_subst is false, this is a simple matter of running the
5689 body through do_spec_1... */
5690 char *string
= save_string (body
, end_body
- body
);
5693 if (do_spec_1 (string
, 0, NULL
) < 0)
5698 /* ... but if have_subst is true, we have to process the
5699 body once for each matching switch, with %* set to the
5700 variant part of the switch. */
5701 unsigned int hard_match_len
= end_atom
- atom
;
5704 for (i
= 0; i
< n_switches
; i
++)
5705 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5706 && check_live_switch (i
, hard_match_len
))
5708 if (do_spec_1 (string
, 0,
5709 &switches
[i
].part1
[hard_match_len
]) < 0)
5711 /* Pass any arguments this switch has. */
5713 suffix_subst
= NULL
;
5721 fatal ("braced spec body '%s' is invalid", body
);
5724 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5725 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5726 spec, or -1 if either exact match or %* is used.
5728 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5729 whose value does not begin with "no-" is obsoleted by the same value
5730 with the "no-", similarly for a switch with the "no-" prefix. */
5733 check_live_switch (int switchnum
, int prefix_length
)
5735 const char *name
= switches
[switchnum
].part1
;
5738 /* In the common case of {<at-most-one-letter>*}, a negating
5739 switch would always match, so ignore that case. We will just
5740 send the conflicting switches to the compiler phase. */
5741 if (prefix_length
>= 0 && prefix_length
<= 1)
5744 /* If we already processed this switch and determined if it was
5745 live or not, return our past determination. */
5746 if (switches
[switchnum
].live_cond
!= 0)
5747 return switches
[switchnum
].live_cond
> 0;
5749 /* Now search for duplicate in a manner that depends on the name. */
5753 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5754 if (switches
[i
].part1
[0] == 'O')
5756 switches
[switchnum
].validated
= 1;
5757 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5762 case 'W': case 'f': case 'm':
5763 if (! strncmp (name
+ 1, "no-", 3))
5765 /* We have Xno-YYY, search for XYYY. */
5766 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5767 if (switches
[i
].part1
[0] == name
[0]
5768 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5770 switches
[switchnum
].validated
= 1;
5771 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5777 /* We have XYYY, search for Xno-YYY. */
5778 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5779 if (switches
[i
].part1
[0] == name
[0]
5780 && switches
[i
].part1
[1] == 'n'
5781 && switches
[i
].part1
[2] == 'o'
5782 && switches
[i
].part1
[3] == '-'
5783 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5785 switches
[switchnum
].validated
= 1;
5786 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5793 /* Otherwise the switch is live. */
5794 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5798 /* Pass a switch to the current accumulating command
5799 in the same form that we received it.
5800 SWITCHNUM identifies the switch; it is an index into
5801 the vector of switches gcc received, which is `switches'.
5802 This cannot fail since it never finishes a command line.
5804 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5807 give_switch (int switchnum
, int omit_first_word
)
5809 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5812 if (!omit_first_word
)
5814 do_spec_1 ("-", 0, NULL
);
5815 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5818 if (switches
[switchnum
].args
!= 0)
5821 for (p
= switches
[switchnum
].args
; *p
; p
++)
5823 const char *arg
= *p
;
5825 do_spec_1 (" ", 0, NULL
);
5828 unsigned length
= strlen (arg
);
5831 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5832 if (arg
[length
] == '.')
5834 ((char *)arg
)[length
] = 0;
5838 do_spec_1 (arg
, 1, NULL
);
5840 ((char *)arg
)[length
] = '.';
5841 do_spec_1 (suffix_subst
, 1, NULL
);
5844 do_spec_1 (arg
, 1, NULL
);
5848 do_spec_1 (" ", 0, NULL
);
5849 switches
[switchnum
].validated
= 1;
5852 /* Search for a file named NAME trying various prefixes including the
5853 user's -B prefix and some standard ones.
5854 Return the absolute file name found. If nothing is found, return NAME. */
5857 find_file (const char *name
)
5861 /* Try multilib_dir if it is defined. */
5862 if (multilib_os_dir
!= NULL
)
5864 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5866 /* If we don't find it in the multi library dir, then fall
5867 through and look for it in the normal places. */
5868 if (newname
!= NULL
)
5872 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5873 return newname
? newname
: name
;
5876 /* Determine whether a directory exists. If LINKER, return 0 for
5877 certain fixed names not needed by the linker. If not LINKER, it is
5878 only important to return 0 if the host machine has a small ARG_MAX
5882 is_directory (const char *path1
, const char *path2
, int linker
)
5884 int len1
= strlen (path1
);
5885 int len2
= strlen (path2
);
5886 char *path
= alloca (3 + len1
+ len2
);
5890 #ifndef SMALL_ARG_MAX
5895 /* Construct the path from the two parts. Ensure the string ends with "/.".
5896 The resulting path will be a directory even if the given path is a
5898 memcpy (path
, path1
, len1
);
5899 memcpy (path
+ len1
, path2
, len2
);
5900 cp
= path
+ len1
+ len2
;
5901 if (!IS_DIR_SEPARATOR (cp
[-1]))
5902 *cp
++ = DIR_SEPARATOR
;
5906 /* Exclude directories that the linker is known to search. */
5909 && strcmp (path
, concat (dir_separator_str
, "lib",
5910 dir_separator_str
, ".", NULL
)) == 0)
5912 && strcmp (path
, concat (dir_separator_str
, "usr",
5913 dir_separator_str
, "lib",
5914 dir_separator_str
, ".", NULL
)) == 0)))
5917 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5920 /* Set up the various global variables to indicate that we're processing
5921 the input file named FILENAME. */
5924 set_input (const char *filename
)
5928 input_filename
= filename
;
5929 input_filename_length
= strlen (input_filename
);
5931 input_basename
= input_filename
;
5932 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5933 /* Skip drive name so 'x:foo' is handled properly. */
5934 if (input_basename
[1] == ':')
5935 input_basename
+= 2;
5937 for (p
= input_basename
; *p
; p
++)
5938 if (IS_DIR_SEPARATOR (*p
))
5939 input_basename
= p
+ 1;
5941 /* Find a suffix starting with the last period,
5942 and set basename_length to exclude that suffix. */
5943 basename_length
= strlen (input_basename
);
5944 suffixed_basename_length
= basename_length
;
5945 p
= input_basename
+ basename_length
;
5946 while (p
!= input_basename
&& *p
!= '.')
5948 if (*p
== '.' && p
!= input_basename
)
5950 basename_length
= p
- input_basename
;
5951 input_suffix
= p
+ 1;
5956 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5957 we will need to do a stat on the input_filename. The
5958 INPUT_STAT_SET signals that the stat is needed. */
5962 /* On fatal signals, delete all the temporary files. */
5965 fatal_error (int signum
)
5967 signal (signum
, SIG_DFL
);
5968 delete_failure_queue ();
5969 delete_temp_files ();
5970 /* Get the same signal again, this time not handled,
5971 so its normal effect occurs. */
5972 kill (getpid (), signum
);
5975 extern int main (int, const char **);
5978 main (int argc
, const char **argv
)
5982 int linker_was_run
= 0;
5983 int lang_n_infiles
= 0;
5984 int num_linker_inputs
= 0;
5985 char *explicit_link_files
;
5988 struct user_specs
*uptr
;
5990 p
= argv
[0] + strlen (argv
[0]);
5991 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5995 xmalloc_set_program_name (programname
);
5997 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5998 /* Perform host dependent initialization when needed. */
5999 GCC_DRIVER_HOST_INITIALIZATION
;
6002 /* Unlock the stdio streams. */
6003 unlock_std_streams ();
6005 gcc_init_libintl ();
6007 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6008 signal (SIGINT
, fatal_error
);
6010 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6011 signal (SIGHUP
, fatal_error
);
6013 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6014 signal (SIGTERM
, fatal_error
);
6016 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6017 signal (SIGPIPE
, fatal_error
);
6020 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6021 receive the signal. A different setting is inheritable */
6022 signal (SIGCHLD
, SIG_DFL
);
6025 /* Allocate the argument vector. */
6028 obstack_init (&obstack
);
6030 /* Build multilib_select, et. al from the separate lines that make up each
6031 multilib selection. */
6033 const char *const *q
= multilib_raw
;
6036 obstack_init (&multilib_obstack
);
6037 while ((p
= *q
++) != (char *) 0)
6038 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6040 obstack_1grow (&multilib_obstack
, 0);
6041 multilib_select
= obstack_finish (&multilib_obstack
);
6043 q
= multilib_matches_raw
;
6044 while ((p
= *q
++) != (char *) 0)
6045 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6047 obstack_1grow (&multilib_obstack
, 0);
6048 multilib_matches
= obstack_finish (&multilib_obstack
);
6050 q
= multilib_exclusions_raw
;
6051 while ((p
= *q
++) != (char *) 0)
6052 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6054 obstack_1grow (&multilib_obstack
, 0);
6055 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6058 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6061 obstack_1grow (&multilib_obstack
, ' ');
6062 obstack_grow (&multilib_obstack
,
6063 multilib_defaults_raw
[i
],
6064 strlen (multilib_defaults_raw
[i
]));
6068 obstack_1grow (&multilib_obstack
, 0);
6069 multilib_defaults
= obstack_finish (&multilib_obstack
);
6072 /* Set up to remember the pathname of gcc and any options
6073 needed for collect. We use argv[0] instead of programname because
6074 we need the complete pathname. */
6075 obstack_init (&collect_obstack
);
6076 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6077 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6078 putenv (obstack_finish (&collect_obstack
));
6080 #ifdef INIT_ENVIRONMENT
6081 /* Set up any other necessary machine specific environment variables. */
6082 putenv (INIT_ENVIRONMENT
);
6085 /* Make a table of what switches there are (switches, n_switches).
6086 Make a table of specified input files (infiles, n_infiles).
6087 Decode switches that are handled locally. */
6089 process_command (argc
, argv
);
6091 /* Initialize the vector of specs to just the default.
6092 This means one element containing 0s, as a terminator. */
6094 compilers
= xmalloc (sizeof default_compilers
);
6095 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6096 n_compilers
= n_default_compilers
;
6098 /* Read specs from a file if there is one. */
6100 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6101 spec_version
, dir_separator_str
, NULL
);
6102 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6104 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6105 /* Read the specs file unless it is a default one. */
6106 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6107 read_specs (specs_file
, TRUE
);
6111 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6112 for any override of as, ld and libraries. */
6113 specs_file
= alloca (strlen (standard_exec_prefix
)
6114 + strlen (just_machine_suffix
) + sizeof ("specs"));
6116 strcpy (specs_file
, standard_exec_prefix
);
6117 strcat (specs_file
, just_machine_suffix
);
6118 strcat (specs_file
, "specs");
6119 if (access (specs_file
, R_OK
) == 0)
6120 read_specs (specs_file
, TRUE
);
6122 /* Process any configure-time defaults specified for the command line
6123 options, via OPTION_DEFAULT_SPECS. */
6124 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6125 do_option_spec (option_default_specs
[i
].name
,
6126 option_default_specs
[i
].spec
);
6128 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6129 of the command line. */
6131 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6132 do_self_spec (driver_self_specs
[i
]);
6134 /* If not cross-compiling, look for executables in the standard
6136 if (*cross_compile
== '0')
6138 if (*md_exec_prefix
)
6140 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6141 PREFIX_PRIORITY_LAST
, 0, 0);
6145 /* Process sysroot_suffix_spec. */
6146 if (*sysroot_suffix_spec
!= 0
6147 && do_spec_2 (sysroot_suffix_spec
) == 0)
6149 if (argbuf_index
> 1)
6150 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6151 else if (argbuf_index
== 1)
6152 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6155 #ifdef HAVE_LD_SYSROOT
6156 /* Pass the --sysroot option to the linker, if it supports that. If
6157 there is a sysroot_suffix_spec, it has already been processed by
6158 this point, so target_system_root really is the system root we
6160 if (target_system_root
)
6162 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6163 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6164 set_spec ("link", obstack_finish (&obstack
));
6168 /* Process sysroot_hdrs_suffix_spec. */
6169 if (*sysroot_hdrs_suffix_spec
!= 0
6170 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6172 if (argbuf_index
> 1)
6173 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6174 else if (argbuf_index
== 1)
6175 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6178 /* Look for startfiles in the standard places. */
6179 if (*startfile_prefix_spec
!= 0
6180 && do_spec_2 (startfile_prefix_spec
) == 0
6181 && do_spec_1 (" ", 0, NULL
) == 0)
6184 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6185 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6186 PREFIX_PRIORITY_LAST
, 0, 1);
6188 /* We should eventually get rid of all these and stick to
6189 startfile_prefix_spec exclusively. */
6190 else if (*cross_compile
== '0' || target_system_root
)
6192 if (*md_startfile_prefix
)
6193 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6194 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6196 if (*md_startfile_prefix_1
)
6197 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6198 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6200 /* If standard_startfile_prefix is relative, base it on
6201 standard_exec_prefix. This lets us move the installed tree
6202 as a unit. If GCC_EXEC_PREFIX is defined, base
6203 standard_startfile_prefix on that as well.
6205 If the prefix is relative, only search it for native compilers;
6206 otherwise we will search a directory containing host libraries. */
6207 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6208 add_sysrooted_prefix (&startfile_prefixes
,
6209 standard_startfile_prefix
, "BINUTILS",
6210 PREFIX_PRIORITY_LAST
, 0, 1);
6211 else if (*cross_compile
== '0')
6213 if (gcc_exec_prefix
)
6214 add_prefix (&startfile_prefixes
,
6215 concat (gcc_exec_prefix
, machine_suffix
,
6216 standard_startfile_prefix
, NULL
),
6217 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6218 add_prefix (&startfile_prefixes
,
6219 concat (standard_exec_prefix
,
6221 standard_startfile_prefix
, NULL
),
6222 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6225 if (*standard_startfile_prefix_1
)
6226 add_sysrooted_prefix (&startfile_prefixes
,
6227 standard_startfile_prefix_1
, "BINUTILS",
6228 PREFIX_PRIORITY_LAST
, 0, 1);
6229 if (*standard_startfile_prefix_2
)
6230 add_sysrooted_prefix (&startfile_prefixes
,
6231 standard_startfile_prefix_2
, "BINUTILS",
6232 PREFIX_PRIORITY_LAST
, 0, 1);
6235 /* Process any user specified specs in the order given on the command
6237 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6239 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6241 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6244 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6245 if (gcc_exec_prefix
)
6246 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6247 spec_version
, dir_separator_str
, NULL
);
6249 /* Now we have the specs.
6250 Set the `valid' bits for switches that match anything in any spec. */
6252 validate_all_switches ();
6254 /* Now that we have the switches and the specs, set
6255 the subdirectory based on the options. */
6256 set_multilib_dir ();
6258 /* Warn about any switches that no pass was interested in. */
6260 for (i
= 0; (int) i
< n_switches
; i
++)
6261 if (! switches
[i
].validated
)
6262 error ("unrecognized option '-%s'", switches
[i
].part1
);
6264 /* Obey some of the options. */
6266 if (print_search_dirs
)
6268 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6269 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6270 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6274 if (print_file_name
)
6276 printf ("%s\n", find_file (print_file_name
));
6280 if (print_prog_name
)
6282 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6283 printf ("%s\n", (newname
? newname
: print_prog_name
));
6287 if (print_multi_lib
)
6289 print_multilib_info ();
6293 if (print_multi_directory
)
6295 if (multilib_dir
== NULL
)
6298 printf ("%s\n", multilib_dir
);
6302 if (print_multi_os_directory
)
6304 if (multilib_os_dir
== NULL
)
6307 printf ("%s\n", multilib_os_dir
);
6311 if (target_help_flag
)
6313 /* Print if any target specific options. */
6315 /* We do not exit here. Instead we have created a fake input file
6316 called 'target-dummy' which needs to be compiled, and we pass this
6317 on to the various sub-processes, along with the --target-help
6321 if (print_help_list
)
6327 printf (_("\nFor bug reporting instructions, please see:\n"));
6328 printf ("%s.\n", bug_report_url
);
6333 /* We do not exit here. Instead we have created a fake input file
6334 called 'help-dummy' which needs to be compiled, and we pass this
6335 on the various sub-processes, along with the --help switch. */
6343 notice ("Target: %s\n", spec_machine
);
6344 notice ("Configured with: %s\n", configuration_arguments
);
6346 #ifdef THREAD_MODEL_SPEC
6347 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6348 but there's no point in doing all this processing just to get
6349 thread_model back. */
6350 obstack_init (&obstack
);
6351 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6352 obstack_1grow (&obstack
, '\0');
6353 thrmod
= obstack_finish (&obstack
);
6355 thrmod
= thread_model
;
6358 notice ("Thread model: %s\n", thrmod
);
6360 /* compiler_version is truncated at the first space when initialized
6361 from version string, so truncate version_string at the first space
6362 before comparing. */
6363 for (n
= 0; version_string
[n
]; n
++)
6364 if (version_string
[n
] == ' ')
6367 if (! strncmp (version_string
, compiler_version
, n
)
6368 && compiler_version
[n
] == 0)
6369 notice ("gcc version %s\n", version_string
);
6371 notice ("gcc driver version %s executing gcc version %s\n",
6372 version_string
, compiler_version
);
6378 if (n_infiles
== added_libraries
)
6379 fatal ("no input files");
6381 /* Make a place to record the compiler output file names
6382 that correspond to the input files. */
6385 i
+= lang_specific_extra_outfiles
;
6386 outfiles
= xcalloc (i
, sizeof (char *));
6388 /* Record which files were specified explicitly as link input. */
6390 explicit_link_files
= xcalloc (1, n_infiles
);
6393 combine_inputs
= true;
6395 combine_inputs
= false;
6397 for (i
= 0; (int) i
< n_infiles
; i
++)
6399 const char *name
= infiles
[i
].name
;
6400 struct compiler
*compiler
= lookup_compiler (name
,
6402 infiles
[i
].language
);
6404 if (compiler
&& !(compiler
->combinable
))
6405 combine_inputs
= false;
6407 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6408 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6409 infiles
[i
].incompiler
= compiler
;
6413 input_file_compiler
= compiler
;
6414 infiles
[i
].incompiler
= compiler
;
6418 /* Since there is no compiler for this input file, assume it is a
6420 explicit_link_files
[i
] = 1;
6421 infiles
[i
].incompiler
= NULL
;
6423 infiles
[i
].compiled
= false;
6424 infiles
[i
].preprocessed
= false;
6427 if (combine_flag
&& save_temps_flag
)
6429 bool save_combine_inputs
= combine_inputs
;
6430 /* Must do a separate pre-processing pass for C & Objective-C files, to
6431 obtain individual .i files. */
6433 combine_inputs
= false;
6434 for (i
= 0; (int) i
< n_infiles
; i
++)
6436 int this_file_error
= 0;
6438 input_file_number
= i
;
6439 set_input (infiles
[i
].name
);
6440 if (infiles
[i
].incompiler
6441 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6442 input_file_compiler
= infiles
[i
].incompiler
;
6446 if (input_file_compiler
)
6448 if (input_file_compiler
->spec
[0] == '#')
6450 error ("%s: %s compiler not installed on this system",
6451 input_filename
, &input_file_compiler
->spec
[1]);
6452 this_file_error
= 1;
6456 value
= do_spec (input_file_compiler
->spec
);
6457 infiles
[i
].preprocessed
= true;
6458 if (!have_o_argbuf_index
)
6459 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6460 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6461 infiles
[i
].incompiler
6462 = lookup_compiler (infiles
[i
].name
,
6463 strlen (infiles
[i
].name
),
6464 infiles
[i
].language
);
6467 this_file_error
= 1;
6471 if (this_file_error
)
6473 delete_failure_queue ();
6477 clear_failure_queue ();
6479 combine_inputs
= save_combine_inputs
;
6482 for (i
= 0; (int) i
< n_infiles
; i
++)
6484 int this_file_error
= 0;
6486 /* Tell do_spec what to substitute for %i. */
6488 input_file_number
= i
;
6489 set_input (infiles
[i
].name
);
6491 if (infiles
[i
].compiled
)
6494 /* Use the same thing in %o, unless cp->spec says otherwise. */
6496 outfiles
[i
] = input_filename
;
6498 /* Figure out which compiler from the file's suffix. */
6500 if (! combine_inputs
)
6502 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6503 infiles
[i
].language
);
6505 input_file_compiler
= infiles
[i
].incompiler
;
6507 if (input_file_compiler
)
6509 /* Ok, we found an applicable compiler. Run its spec. */
6511 if (input_file_compiler
->spec
[0] == '#')
6513 error ("%s: %s compiler not installed on this system",
6514 input_filename
, &input_file_compiler
->spec
[1]);
6515 this_file_error
= 1;
6519 value
= do_spec (input_file_compiler
->spec
);
6520 infiles
[i
].compiled
= true;
6522 this_file_error
= 1;
6526 /* If this file's name does not contain a recognized suffix,
6527 record it as explicit linker input. */
6530 explicit_link_files
[i
] = 1;
6532 /* Clear the delete-on-failure queue, deleting the files in it
6533 if this compilation failed. */
6535 if (this_file_error
)
6537 delete_failure_queue ();
6540 /* If this compilation succeeded, don't delete those files later. */
6541 clear_failure_queue ();
6544 /* Reset the output file name to the first input file name, for use
6545 with %b in LINK_SPEC on a target that prefers not to emit a.out
6548 set_input (infiles
[0].name
);
6550 if (error_count
== 0)
6552 /* Make sure INPUT_FILE_NUMBER points to first available open
6554 input_file_number
= n_infiles
;
6555 if (lang_specific_pre_link ())
6559 /* Determine if there are any linker input files. */
6560 num_linker_inputs
= 0;
6561 for (i
= 0; (int) i
< n_infiles
; i
++)
6562 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6563 num_linker_inputs
++;
6565 /* Run ld to link all the compiler output files. */
6567 if (num_linker_inputs
> 0 && error_count
== 0)
6569 int tmp
= execution_count
;
6571 /* We'll use ld if we can't find collect2. */
6572 if (! strcmp (linker_name_spec
, "collect2"))
6574 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6576 linker_name_spec
= "ld";
6578 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6580 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6581 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6583 value
= do_spec (link_command_spec
);
6586 linker_was_run
= (tmp
!= execution_count
);
6589 /* If options said don't run linker,
6590 complain about input files to be given to the linker. */
6592 if (! linker_was_run
&& error_count
== 0)
6593 for (i
= 0; (int) i
< n_infiles
; i
++)
6594 if (explicit_link_files
[i
])
6595 error ("%s: linker input file unused because linking not done",
6598 /* Delete some or all of the temporary files we made. */
6601 delete_failure_queue ();
6602 delete_temp_files ();
6604 if (print_help_list
)
6606 printf (("\nFor bug reporting instructions, please see:\n"));
6607 printf ("%s\n", bug_report_url
);
6610 return (signal_count
!= 0 ? 2
6611 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6615 /* Find the proper compilation spec for the file name NAME,
6616 whose length is LENGTH. LANGUAGE is the specified language,
6617 or 0 if this file is to be passed to the linker. */
6619 static struct compiler
*
6620 lookup_compiler (const char *name
, size_t length
, const char *language
)
6622 struct compiler
*cp
;
6624 /* If this was specified by the user to be a linker input, indicate that. */
6625 if (language
!= 0 && language
[0] == '*')
6628 /* Otherwise, look for the language, if one is spec'd. */
6631 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6632 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6635 error ("language %s not recognized", language
);
6639 /* Look for a suffix. */
6640 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6642 if (/* The suffix `-' matches only the file name `-'. */
6643 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6644 || (strlen (cp
->suffix
) < length
6645 /* See if the suffix matches the end of NAME. */
6646 && !strcmp (cp
->suffix
,
6647 name
+ length
- strlen (cp
->suffix
))
6652 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6653 /* Look again, but case-insensitively this time. */
6655 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6657 if (/* The suffix `-' matches only the file name `-'. */
6658 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6659 || (strlen (cp
->suffix
) < length
6660 /* See if the suffix matches the end of NAME. */
6661 && ((!strcmp (cp
->suffix
,
6662 name
+ length
- strlen (cp
->suffix
))
6663 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6664 && !strcasecmp (cp
->suffix
,
6665 name
+ length
- strlen (cp
->suffix
)))
6671 if (cp
>= compilers
)
6673 if (cp
->spec
[0] != '@')
6674 /* A non-alias entry: return it. */
6677 /* An alias entry maps a suffix to a language.
6678 Search for the language; pass 0 for NAME and LENGTH
6679 to avoid infinite recursion if language not found. */
6680 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6686 save_string (const char *s
, int len
)
6688 char *result
= xmalloc (len
+ 1);
6690 memcpy (result
, s
, len
);
6696 pfatal_with_name (const char *name
)
6698 perror_with_name (name
);
6699 delete_temp_files ();
6704 perror_with_name (const char *name
)
6706 error ("%s: %s", name
, xstrerror (errno
));
6710 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6714 int save_errno
= errno
;
6716 /* Space for trailing '\0' is in %s. */
6717 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6718 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6724 pfatal_with_name (errmsg_fmt
);
6727 /* Output an error message and exit. */
6730 fancy_abort (const char *file
, int line
, const char *func
)
6732 fatal ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6735 /* Output an error message and exit. */
6738 fatal (const char *msgid
, ...)
6742 va_start (ap
, msgid
);
6744 fprintf (stderr
, "%s: ", programname
);
6745 vfprintf (stderr
, _(msgid
), ap
);
6747 fprintf (stderr
, "\n");
6748 delete_temp_files ();
6753 error (const char *msgid
, ...)
6757 va_start (ap
, msgid
);
6758 fprintf (stderr
, "%s: ", programname
);
6759 vfprintf (stderr
, _(msgid
), ap
);
6762 fprintf (stderr
, "\n");
6766 notice (const char *msgid
, ...)
6770 va_start (ap
, msgid
);
6771 vfprintf (stderr
, _(msgid
), ap
);
6776 validate_switches_from_spec (const char *spec
)
6778 const char *p
= spec
;
6781 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6782 /* We have a switch spec. */
6783 p
= validate_switches (p
+ 1);
6787 validate_all_switches (void)
6789 struct compiler
*comp
;
6790 struct spec_list
*spec
;
6792 for (comp
= compilers
; comp
->spec
; comp
++)
6793 validate_switches_from_spec (comp
->spec
);
6795 /* Look through the linked list of specs read from the specs file. */
6796 for (spec
= specs
; spec
; spec
= spec
->next
)
6797 validate_switches_from_spec (*spec
->ptr_spec
);
6799 validate_switches_from_spec (link_command_spec
);
6802 /* Look at the switch-name that comes after START
6803 and mark as valid all supplied switches that match it. */
6806 validate_switches (const char *start
)
6808 const char *p
= start
;
6812 bool suffix
= false;
6813 bool starred
= false;
6815 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6828 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6829 || *p
== ',' || *p
== '.' || *p
== '@')
6834 starred
= true, p
++;
6840 /* Mark all matching switches as valid. */
6841 for (i
= 0; i
< n_switches
; i
++)
6842 if (!strncmp (switches
[i
].part1
, atom
, len
)
6843 && (starred
|| switches
[i
].part1
[len
] == 0))
6844 switches
[i
].validated
= 1;
6848 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6851 if (*p
&& p
[-1] == ':')
6853 while (*p
&& *p
!= ';' && *p
!= '}')
6858 if (*p
== '{' || *p
== '<')
6859 p
= validate_switches (p
+1);
6860 else if (p
[0] == 'W' && p
[1] == '{')
6861 p
= validate_switches (p
+2);
6868 if (*p
&& p
[-1] == ';')
6882 static struct mdswitchstr
*mdswitches
;
6883 static int n_mdswitches
;
6885 /* Check whether a particular argument was used. The first time we
6886 canonicalize the switches to keep only the ones we care about. */
6889 used_arg (const char *p
, int len
)
6894 const char *replace
;
6899 static struct mswitchstr
*mswitches
;
6900 static int n_mswitches
;
6905 struct mswitchstr
*matches
;
6909 /* Break multilib_matches into the component strings of string
6910 and replacement string. */
6911 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6915 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6917 q
= multilib_matches
;
6926 fatal ("multilib spec '%s' is invalid", multilib_matches
);
6930 matches
[i
].len
= q
- matches
[i
].str
;
6932 matches
[i
].replace
= ++q
;
6933 while (*q
!= ';' && *q
!= '\0')
6936 goto invalid_matches
;
6939 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6945 /* Now build a list of the replacement string for switches that we care
6946 about. Make sure we allocate at least one entry. This prevents
6947 xmalloc from calling fatal, and prevents us from re-executing this
6950 = xmalloc (sizeof (struct mswitchstr
)
6951 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6952 for (i
= 0; i
< n_switches
; i
++)
6953 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6955 int xlen
= strlen (switches
[i
].part1
);
6956 for (j
= 0; j
< cnt
; j
++)
6957 if (xlen
== matches
[j
].len
6958 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6960 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6961 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6962 mswitches
[n_mswitches
].replace
= (char *) 0;
6963 mswitches
[n_mswitches
].rep_len
= 0;
6969 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6970 on the command line nor any options mutually incompatible with
6972 for (i
= 0; i
< n_mdswitches
; i
++)
6976 for (q
= multilib_options
; *q
!= '\0'; q
++)
6982 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6983 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6985 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6992 if (*q
!= ' ' && *q
!= '\0')
6994 while (*r
!= ' ' && *r
!= '\0')
6997 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7000 if (used_arg (r
, q
- r
))
7005 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7006 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7007 mswitches
[n_mswitches
].replace
= (char *) 0;
7008 mswitches
[n_mswitches
].rep_len
= 0;
7021 for (i
= 0; i
< n_mswitches
; i
++)
7022 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7029 default_arg (const char *p
, int len
)
7033 for (i
= 0; i
< n_mdswitches
; i
++)
7034 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7040 /* Work out the subdirectory to use based on the options. The format of
7041 multilib_select is a list of elements. Each element is a subdirectory
7042 name followed by a list of options followed by a semicolon. The format
7043 of multilib_exclusions is the same, but without the preceding
7044 directory. First gcc will check the exclusions, if none of the options
7045 beginning with an exclamation point are present, and all of the other
7046 options are present, then we will ignore this completely. Passing
7047 that, gcc will consider each multilib_select in turn using the same
7048 rules for matching the options. If a match is found, that subdirectory
7052 set_multilib_dir (void)
7055 unsigned int this_path_len
;
7056 const char *this_path
, *this_arg
;
7057 const char *start
, *end
;
7059 int ok
, ndfltok
, first
;
7062 start
= multilib_defaults
;
7063 while (*start
== ' ' || *start
== '\t')
7065 while (*start
!= '\0')
7068 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7070 while (*start
== ' ' || *start
== '\t')
7078 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7079 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7081 while (*start
== ' ' || *start
== '\t')
7087 for (end
= start
+ 1;
7088 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7091 obstack_grow (&multilib_obstack
, start
, end
- start
);
7092 obstack_1grow (&multilib_obstack
, 0);
7093 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7094 mdswitches
[i
++].len
= end
- start
;
7101 p
= multilib_exclusions
;
7104 /* Ignore newlines. */
7111 /* Check the arguments. */
7118 fatal ("multilib exclusions '%s' is invalid",
7119 multilib_exclusions
);
7129 while (*p
!= ' ' && *p
!= ';')
7132 goto invalid_exclusions
;
7136 if (*this_arg
!= '!')
7144 ok
= used_arg (this_arg
, p
- this_arg
);
7159 p
= multilib_select
;
7162 /* Ignore newlines. */
7169 /* Get the initial path. */
7176 fatal ("multilib select '%s' is invalid",
7181 this_path_len
= p
- this_path
;
7183 /* Check the arguments. */
7190 goto invalid_select
;
7199 while (*p
!= ' ' && *p
!= ';')
7202 goto invalid_select
;
7206 if (*this_arg
!= '!')
7214 /* If this is a default argument, we can just ignore it.
7215 This is true even if this_arg begins with '!'. Beginning
7216 with '!' does not mean that this argument is necessarily
7217 inappropriate for this library: it merely means that
7218 there is a more specific library which uses this
7219 argument. If this argument is a default, we need not
7220 consider that more specific library. */
7221 ok
= used_arg (this_arg
, p
- this_arg
);
7228 if (default_arg (this_arg
, p
- this_arg
))
7237 if (this_path_len
!= 1
7238 || this_path
[0] != '.')
7240 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7243 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7244 new_multilib_dir
[this_path_len
] = '\0';
7245 q
= strchr (new_multilib_dir
, ':');
7248 multilib_dir
= new_multilib_dir
;
7255 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7257 while (q
< end
&& *q
!= ':')
7261 char *new_multilib_os_dir
= xmalloc (end
- q
);
7262 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7263 new_multilib_os_dir
[end
- q
- 1] = '\0';
7264 multilib_os_dir
= new_multilib_os_dir
;
7272 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7273 && strcmp (multilib_os_dir
, ".") == 0)
7275 free ((char *) multilib_os_dir
);
7276 multilib_os_dir
= NULL
;
7278 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7279 multilib_os_dir
= multilib_dir
;
7282 /* Print out the multiple library subdirectory selection
7283 information. This prints out a series of lines. Each line looks
7284 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7285 required. Only the desired options are printed out, the negative
7286 matches. The options are print without a leading dash. There are
7287 no spaces to make it easy to use the information in the shell.
7288 Each subdirectory is printed only once. This assumes the ordering
7289 generated by the genmultilib script. Also, we leave out ones that match
7293 print_multilib_info (void)
7295 const char *p
= multilib_select
;
7296 const char *last_path
= 0, *this_path
;
7298 unsigned int last_path_len
= 0;
7303 /* Ignore newlines. */
7310 /* Get the initial path. */
7317 fatal ("multilib select '%s' is invalid", multilib_select
);
7323 /* When --disable-multilib was used but target defines
7324 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7325 to find multilib_os_dir, so skip them from output. */
7326 if (this_path
[0] == '.' && this_path
[1] == ':')
7329 /* Check for matches with the multilib_exclusions. We don't bother
7330 with the '!' in either list. If any of the exclusion rules match
7331 all of its options with the select rule, we skip it. */
7333 const char *e
= multilib_exclusions
;
7334 const char *this_arg
;
7339 /* Ignore newlines. */
7346 /* Check the arguments. */
7355 fatal ("multilib exclusion '%s' is invalid",
7356 multilib_exclusions
);
7367 while (*e
!= ' ' && *e
!= ';')
7370 goto invalid_exclusion
;
7378 int len
= e
- this_arg
;
7381 goto invalid_select
;
7385 while (*q
!= ' ' && *q
!= ';')
7388 goto invalid_select
;
7392 if (! strncmp (arg
, this_arg
,
7393 (len
< q
- arg
) ? q
- arg
: len
)
7394 || default_arg (this_arg
, e
- this_arg
))
7424 /* If this is a duplicate, skip it. */
7425 skip
= (last_path
!= 0
7426 && (unsigned int) (p
- this_path
) == last_path_len
7427 && ! strncmp (last_path
, this_path
, last_path_len
));
7429 last_path
= this_path
;
7430 last_path_len
= p
- this_path
;
7433 /* If this directory requires any default arguments, we can skip
7434 it. We will already have printed a directory identical to
7435 this one which does not require that default argument. */
7446 goto invalid_select
;
7453 while (*q
!= ' ' && *q
!= ';')
7456 goto invalid_select
;
7461 && default_arg (arg
, q
- arg
))
7476 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7487 goto invalid_select
;
7495 use_arg
= *p
!= '!';
7500 while (*p
!= ' ' && *p
!= ';')
7503 goto invalid_select
;
7515 /* If there are extra options, print them now. */
7516 if (multilib_extra
&& *multilib_extra
)
7518 int print_at
= TRUE
;
7521 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7542 /* if-exists built-in spec function.
7544 Checks to see if the file specified by the absolute pathname in
7545 ARGS exists. Returns that pathname if found.
7547 The usual use for this function is to check for a library file
7548 (whose name has been expanded with %s). */
7551 if_exists_spec_function (int argc
, const char **argv
)
7553 /* Must have only one argument. */
7554 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7560 /* if-exists-else built-in spec function.
7562 This is like if-exists, but takes an additional argument which
7563 is returned if the first argument does not exist. */
7566 if_exists_else_spec_function (int argc
, const char **argv
)
7568 /* Must have exactly two arguments. */
7572 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7578 /* replace-outfile built-in spec function.
7579 This looks for the first argument in the outfiles array's name and replaces it
7580 with the second argument. */
7583 replace_outfile_spec_function (int argc
, const char **argv
)
7586 /* Must have exactly two arguments. */
7590 for (i
= 0; i
< n_infiles
; i
++)
7592 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7593 outfiles
[i
] = xstrdup (argv
[1]);