1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 This paragraph is here to try to keep Sun CC from dying.
24 The number of chars here seems crucial!!!! */
26 /* This program is the user interface to the C compiler and possibly to
27 other compilers. It is used because compilation is a complicated procedure
28 which involves running several programs and passing temporary files between
29 them, forwarding the users switches to those programs selectively,
30 and deleting the temporary files at the end.
32 CC recognizes how to compile each input file by suffixes in the file names.
33 Once it knows which kind of compilation to perform, the procedure for
34 compilation is specified by a string called a "spec". */
36 /* A Short Introduction to Adding a Command-Line Option.
38 Before adding a command-line option, consider if it is really
39 necessary. Each additional command-line option adds complexity and
40 is difficult to remove in subsequent versions.
42 In the following, consider adding the command-line argument
45 1. Each command-line option is specified in the specs file. The
46 notation is described below in the comment entitled "The Specs
49 2. In this file, add an entry to "option_map" equating the long
50 `--' argument version and any shorter, single letter version. Read
51 the comments in the declaration of "struct option_map" for an
52 explanation. Do not omit the first `-'.
54 3. Look in the "specs" file to determine which program or option
55 list should be given the argument, e.g., "cc1_options". Add the
56 appropriate syntax for the shorter option version to the
57 corresponding "const char *" entry in this file. Omit the first
58 `-' from the option. For example, use `-bar', rather than `--bar'.
60 4. If the argument takes an argument, e.g., `--baz argument1',
61 modify either DEFAULT_SWITCH_TAKES_ARG or
62 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
65 5. Document the option in this file's display_help(). If the
66 option is passed to a subprogram, modify its corresponding
67 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
70 6. Compile and test. Make sure that your new specs file is being
71 read. For example, use a debugger to investigate the value of
72 "specs_file" in main(). */
76 #include "coretypes.h"
77 #include "multilib.h" /* before tm.h */
80 #if ! defined( SIGCHLD ) && defined( SIGCLD )
81 # define SIGCHLD SIGCLD
91 /* By default there is no special suffix for target executables. */
92 /* FIXME: when autoconf is fixed, remove the host check - dj */
93 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
94 #define HAVE_TARGET_EXECUTABLE_SUFFIX
97 /* By default there is no special suffix for host executables. */
98 #ifdef HOST_EXECUTABLE_SUFFIX
99 #define HAVE_HOST_EXECUTABLE_SUFFIX
101 #define HOST_EXECUTABLE_SUFFIX ""
104 /* By default, the suffix for target object files is ".o". */
105 #ifdef TARGET_OBJECT_SUFFIX
106 #define HAVE_TARGET_OBJECT_SUFFIX
108 #define TARGET_OBJECT_SUFFIX ".o"
111 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
113 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
114 #ifndef LIBRARY_PATH_ENV
115 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
119 #define kill(p,s) raise(s)
122 /* If a stage of compilation returns an exit status >= 1,
123 compilation of that file ceases. */
125 #define MIN_FATAL_STATUS 1
127 /* Flag set by cppspec.c to 1. */
130 /* Flag saying to pass the greatest exit code returned by a sub-process
131 to the calling program. */
132 static int pass_exit_codes
;
134 /* Definition of string containing the arguments given to configure. */
135 #include "configargs.h"
137 /* Flag saying to print the directories gcc will search through looking for
138 programs, libraries, etc. */
140 static int print_search_dirs
;
142 /* Flag saying to print the full filename of this file
143 as found through our usual search mechanism. */
145 static const char *print_file_name
= NULL
;
147 /* As print_file_name, but search for executable file. */
149 static const char *print_prog_name
= NULL
;
151 /* Flag saying to print the relative path we'd use to
152 find libgcc.a given the current compiler flags. */
154 static int print_multi_directory
;
156 /* Flag saying to print the relative path we'd use to
157 find OS libraries given the current compiler flags. */
159 static int print_multi_os_directory
;
161 /* Flag saying to print the list of subdirectories and
162 compiler flags used to select them in a standard form. */
164 static int print_multi_lib
;
166 /* Flag saying to print the command line options understood by gcc and its
169 static int print_help_list
;
171 /* Flag saying to print the sysroot suffix used for searching for
174 static int print_sysroot_headers_suffix
;
176 /* Flag indicating whether we should print the command and arguments */
178 static int verbose_flag
;
180 /* Flag indicating whether we should ONLY print the command and
181 arguments (like verbose_flag) without executing the command.
182 Displayed arguments are quoted so that the generated command
183 line is suitable for execution. This is intended for use in
184 shell scripts to capture the driver-generated command line. */
185 static int verbose_only_flag
;
187 /* Flag indicating how to print command line options of sub-processes. */
189 static int print_subprocess_help
;
191 /* Flag indicating whether we should report subprocess execution times
192 (if this is supported by the system - see pexecute.c). */
194 static int report_times
;
196 /* Nonzero means place this string before uses of /, so that include
197 and library files can be found in an alternate location. */
199 #ifdef TARGET_SYSTEM_ROOT
200 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
202 static const char *target_system_root
= 0;
205 /* Nonzero means pass the updated target_system_root to the compiler. */
207 static int target_system_root_changed
;
209 /* Nonzero means append this string to target_system_root. */
211 static const char *target_sysroot_suffix
= 0;
213 /* Nonzero means append this string to target_system_root for headers. */
215 static const char *target_sysroot_hdrs_suffix
= 0;
217 /* Nonzero means write "temp" files in source directory
218 and use the source file's name in them, and don't delete them. */
220 static int save_temps_flag
;
222 /* Nonzero means pass multiple source files to the compiler at one time. */
224 static int combine_flag
= 0;
226 /* Nonzero means use pipes to communicate between subprocesses.
227 Overridden by either of the above two flags. */
229 static int use_pipes
;
231 /* The compiler version. */
233 static const char *compiler_version
;
235 /* The target version specified with -V */
237 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
239 /* The target machine specified with -b. */
241 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
243 /* Nonzero if cross-compiling.
244 When -b is used, the value comes from the `specs' file. */
246 #ifdef CROSS_DIRECTORY_STRUCTURE
247 static const char *cross_compile
= "1";
249 static const char *cross_compile
= "0";
252 #ifdef MODIFY_TARGET_NAME
254 /* Information on how to alter the target name based on a command-line
255 switch. The only case we support now is simply appending or deleting a
256 string to or from the end of the first part of the configuration name. */
258 static const struct modify_target
260 const char *const sw
;
261 const enum add_del
{ADD
, DELETE
} add_del
;
262 const char *const str
;
264 modify_target
[] = MODIFY_TARGET_NAME
;
267 /* The number of errors that have occurred; the link phase will not be
268 run if this is nonzero. */
269 static int error_count
= 0;
271 /* Greatest exit code of sub-processes that has been encountered up to
273 static int greatest_status
= 1;
275 /* This is the obstack which we use to allocate many strings. */
277 static struct obstack obstack
;
279 /* This is the obstack to build an environment variable to pass to
280 collect2 that describes all of the relevant switches of what to
281 pass the compiler in building the list of pointers to constructors
284 static struct obstack collect_obstack
;
286 /* Forward declaration for prototypes. */
290 static void init_spec (void);
291 static void store_arg (const char *, int, int);
292 static char *load_specs (const char *);
293 static void read_specs (const char *, int);
294 static void set_spec (const char *, const char *);
295 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
296 static char *build_search_list (const struct path_prefix
*, const char *,
298 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
300 static int access_check (const char *, int);
301 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
302 static void add_prefix (struct path_prefix
*, const char *, const char *,
304 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
305 const char *, int, int, int);
306 static void translate_options (int *, const char *const **);
307 static char *skip_whitespace (char *);
308 static void delete_if_ordinary (const char *);
309 static void delete_temp_files (void);
310 static void delete_failure_queue (void);
311 static void clear_failure_queue (void);
312 static int check_live_switch (int, int);
313 static const char *handle_braces (const char *);
314 static inline bool input_suffix_matches (const char *, const char *);
315 static inline bool switch_matches (const char *, const char *, int);
316 static inline void mark_matching_switches (const char *, const char *, int);
317 static inline void process_marked_switches (void);
318 static const char *process_brace_body (const char *, const char *, const char *, int, int);
319 static const struct spec_function
*lookup_spec_function (const char *);
320 static const char *eval_spec_function (const char *, const char *);
321 static const char *handle_spec_function (const char *);
322 static char *save_string (const char *, int);
323 static void set_collect_gcc_options (void);
324 static int do_spec_1 (const char *, int, const char *);
325 static int do_spec_2 (const char *);
326 static void do_option_spec (const char *, const char *);
327 static void do_self_spec (const char *);
328 static const char *find_file (const char *);
329 static int is_directory (const char *, bool);
330 static const char *validate_switches (const char *);
331 static void validate_all_switches (void);
332 static inline void validate_switches_from_spec (const char *);
333 static void give_switch (int, int);
334 static int used_arg (const char *, int);
335 static int default_arg (const char *, int);
336 static void set_multilib_dir (void);
337 static void print_multilib_info (void);
338 static void perror_with_name (const char *);
339 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
340 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
341 static void display_help (void);
342 static void add_preprocessor_option (const char *, int);
343 static void add_assembler_option (const char *, int);
344 static void add_linker_option (const char *, int);
345 static void process_command (int, const char **);
346 static int execute (void);
347 static void alloc_args (void);
348 static void clear_args (void);
349 static void fatal_error (int);
350 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
351 static void init_gcc_specs (struct obstack
*, const char *, const char *,
354 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
355 static const char *convert_filename (const char *, int, int);
358 static const char *getenv_spec_function (int, const char **);
359 static const char *if_exists_spec_function (int, const char **);
360 static const char *if_exists_else_spec_function (int, const char **);
361 static const char *replace_outfile_spec_function (int, const char **);
362 static const char *version_compare_spec_function (int, const char **);
363 static const char *include_spec_function (int, const char **);
365 /* The Specs Language
367 Specs are strings containing lines, each of which (if not blank)
368 is made up of a program name, and arguments separated by spaces.
369 The program name must be exact and start from root, since no path
370 is searched and it is unreliable to depend on the current working directory.
371 Redirection of input or output is not supported; the subprograms must
372 accept filenames saying what files to read and write.
374 In addition, the specs can contain %-sequences to substitute variable text
375 or for conditional text. Here is a table of all defined %-sequences.
376 Note that spaces are not generated automatically around the results of
377 expanding these sequences; therefore, you can concatenate them together
378 or with constant text in a single argument.
380 %% substitute one % into the program name or argument.
381 %i substitute the name of the input file being processed.
382 %b substitute the basename of the input file being processed.
383 This is the substring up to (and not including) the last period
384 and not including the directory.
385 %B same as %b, but include the file suffix (text after the last period).
387 substitute a file name that has suffix SUFFIX and is chosen
388 once per compilation, and mark the argument a la %d. To reduce
389 exposure to denial-of-service attacks, the file name is now
390 chosen in a way that is hard to predict even when previously
391 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
392 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
393 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
394 had been pre-processed. Previously, %g was simply substituted
395 with a file name chosen once per compilation, without regard
396 to any appended suffix (which was therefore treated just like
397 ordinary text), making such attacks more likely to succeed.
399 like %g, but if -pipe is in effect, expands simply to "-".
401 like %g, but if -pipe is in effect, expands to nothing. (We have both
402 %| and %m to accommodate differences between system assemblers; see
403 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
405 like %g, but generates a new temporary file name even if %uSUFFIX
408 substitutes the last file name generated with %uSUFFIX, generating a
409 new one if there is no such last file name. In the absence of any
410 %uSUFFIX, this is just like %gSUFFIX, except they don't share
411 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
412 would involve the generation of two distinct file names, one
413 for each `%g.s' and another for each `%U.s'. Previously, %U was
414 simply substituted with a file name chosen for the previous %u,
415 without regard to any appended suffix.
417 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
418 writable, and if save-temps is off; otherwise, substitute the name
419 of a temporary file, just like %u. This temporary file is not
420 meant for communication between processes, but rather as a junk
423 substitutes .SUFFIX for the suffixes of a matched switch's args when
424 it is subsequently output with %*. SUFFIX is terminated by the next
426 %d marks the argument containing or following the %d as a
427 temporary file name, so that that file will be deleted if CC exits
428 successfully. Unlike %g, this contributes no text to the argument.
429 %w marks the argument containing or following the %w as the
430 "output file" of this compilation. This puts the argument
431 into the sequence of arguments that %o will substitute later.
432 %V indicates that this compilation produces no "output file".
434 like %{...} but mark last argument supplied within
435 as a file to be deleted on failure.
436 %o substitutes the names of all the output files, with spaces
437 automatically placed around them. You should write spaces
438 around the %o as well or the results are undefined.
439 %o is for use in the specs for running the linker.
440 Input files whose names have no recognized suffix are not compiled
441 at all, but they are included among the output files, so they will
443 %O substitutes the suffix for object files. Note that this is
444 handled specially when it immediately follows %g, %u, or %U
445 (with or without a suffix argument) because of the need for
446 those to form complete file names. The handling is such that
447 %O is treated exactly as if it had already been substituted,
448 except that %g, %u, and %U do not currently support additional
449 SUFFIX characters following %O as they would following, for
451 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
452 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
453 and -B options) and -imultilib as necessary.
454 %s current argument is the name of a library or startup file of some sort.
455 Search for that file in a standard list of directories
456 and substitute the full name found.
457 %eSTR Print STR as an error message. STR is terminated by a newline.
458 Use this when inconsistent options are detected.
459 %nSTR Print STR as a notice. STR is terminated by a newline.
460 %x{OPTION} Accumulate an option for %X.
461 %X Output the accumulated linker options specified by compilations.
462 %Y Output the accumulated assembler options specified by compilations.
463 %Z Output the accumulated preprocessor options specified by compilations.
464 %a process ASM_SPEC as a spec.
465 This allows config.h to specify part of the spec for running as.
466 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
467 used here. This can be used to run a post-processor after the
468 assembler has done its job.
469 %D Dump out a -L option for each directory in startfile_prefixes.
470 If multilib_dir is set, extra entries are generated with it affixed.
471 %l process LINK_SPEC as a spec.
472 %L process LIB_SPEC as a spec.
473 %G process LIBGCC_SPEC as a spec.
474 %R Output the concatenation of target_system_root and
475 target_sysroot_suffix.
476 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
477 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
478 %C process CPP_SPEC as a spec.
479 %1 process CC1_SPEC as a spec.
480 %2 process CC1PLUS_SPEC as a spec.
481 %* substitute the variable part of a matched option. (See below.)
482 Note that each comma in the substituted string is replaced by
484 %<S remove all occurrences of -S from the command line.
485 Note - this command is position dependent. % commands in the
486 spec string before this one will see -S, % commands in the
487 spec string after this one will not.
488 %<S* remove all occurrences of all switches beginning with -S from the
491 Call the named function FUNCTION, passing it ARGS. ARGS is
492 first processed as a nested spec string, then split into an
493 argument vector in the usual fashion. The function returns
494 a string which is processed as if it had appeared literally
495 as part of the current spec.
496 %{S} substitutes the -S switch, if that switch was given to CC.
497 If that switch was not specified, this substitutes nothing.
498 Here S is a metasyntactic variable.
499 %{S*} substitutes all the switches specified to CC whose names start
500 with -S. This is used for -o, -I, etc; switches that take
501 arguments. CC considers `-o foo' as being one switch whose
502 name starts with `o'. %{o*} would substitute this text,
503 including the space; thus, two arguments would be generated.
504 %{S*&T*} likewise, but preserve order of S and T options (the order
505 of S and T in the spec is not significant). Can be any number
506 of ampersand-separated variables; for each the wild card is
507 optional. Useful for CPP as %{D*&U*&A*}.
509 %{S:X} substitutes X, if the -S switch was given to CC.
510 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
511 %{S*:X} substitutes X if one or more switches whose names start
512 with -S was given to CC. Normally X is substituted only
513 once, no matter how many such switches appeared. However,
514 if %* appears somewhere in X, then X will be substituted
515 once for each matching switch, with the %* replaced by the
516 part of that switch that matched the '*'.
517 %{.S:X} substitutes X, if processing a file with suffix S.
518 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
520 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
521 combined with !, ., and * as above binding stronger than the OR.
522 If %* appears in X, all of the alternatives must be starred, and
523 only the first matching alternative is substituted.
524 %{S:X; if S was given to CC, substitutes X;
525 T:Y; else if T was given to CC, substitutes Y;
526 :D} else substitutes D. There can be as many clauses as you need.
527 This may be combined with ., !, |, and * as above.
529 %(Spec) processes a specification defined in a specs file as *Spec:
530 %[Spec] as above, but put __ around -D arguments
532 The conditional text X in a %{S:X} or similar construct may contain
533 other nested % constructs or spaces, or even newlines. They are
534 processed as usual, as described above. Trailing white space in X is
535 ignored. White space may also appear anywhere on the left side of the
536 colon in these constructs, except between . or * and the corresponding
539 The -O, -f, -m, and -W switches are handled specifically in these
540 constructs. If another value of -O or the negated form of a -f, -m, or
541 -W switch is found later in the command line, the earlier switch
542 value is ignored, except with {S*} where S is just one letter; this
543 passes all matching options.
545 The character | at the beginning of the predicate text is used to indicate
546 that a command should be piped to the following command, but only if -pipe
549 Note that it is built into CC which switches take arguments and which
550 do not. You might think it would be useful to generalize this to
551 allow each compiler's spec to say which switches take arguments. But
552 this cannot be done in a consistent fashion. CC cannot even decide
553 which input files have been specified without knowing which switches
554 take arguments, and it must know which input files to compile in order
555 to tell which compilers to run.
557 CC also knows implicitly that arguments starting in `-l' are to be
558 treated as compiler output files, and passed to the linker in their
559 proper position among the other output files. */
561 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
563 /* config.h can define ASM_SPEC to provide extra args to the assembler
564 or extra switch-translations. */
569 /* config.h can define ASM_FINAL_SPEC to run a post processor after
570 the assembler has run. */
571 #ifndef ASM_FINAL_SPEC
572 #define ASM_FINAL_SPEC ""
575 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
576 or extra switch-translations. */
581 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
582 or extra switch-translations. */
587 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
588 or extra switch-translations. */
590 #define CC1PLUS_SPEC ""
593 /* config.h can define LINK_SPEC to provide extra args to the linker
594 or extra switch-translations. */
599 /* config.h can define LIB_SPEC to override the default libraries. */
601 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
606 /* XXX: valid only for GNU ld */
607 /* XXX: should exactly match hooks provided by libmudflap.a */
608 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
609 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
610 --wrap=mmap --wrap=munmap --wrap=alloca\
611 } %{fmudflapth: --wrap=pthread_create\
612 }} %{fmudflap|fmudflapth: --wrap=main}"
615 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
618 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
621 #if defined(REAL_LIBGCC_SPEC)
622 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
623 #elif defined(LINK_LIBGCC_SPECIAL_1)
624 /* Have gcc do the search for libgcc.a. */
625 #define LIBGCC_SPEC "libgcc.a%s"
627 #define LIBGCC_SPEC "-lgcc"
631 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
632 #ifndef STARTFILE_SPEC
633 #define STARTFILE_SPEC \
634 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
637 /* config.h can define SWITCHES_NEED_SPACES to control which options
638 require spaces between the option and the argument. */
639 #ifndef SWITCHES_NEED_SPACES
640 #define SWITCHES_NEED_SPACES ""
643 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
645 #define ENDFILE_SPEC ""
649 #define LINKER_NAME "collect2"
652 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
654 #ifndef ASM_DEBUG_SPEC
655 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
656 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
657 # define ASM_DEBUG_SPEC \
658 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
659 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
660 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
662 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
663 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
665 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
666 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
670 #ifndef ASM_DEBUG_SPEC
671 # define ASM_DEBUG_SPEC ""
674 /* Here is the spec for running the linker, after compiling all files. */
676 /* This is overridable by the target in case they need to specify the
677 -lgcc and -lc order specially, yet not require them to override all
678 of LINK_COMMAND_SPEC. */
679 #ifndef LINK_GCC_C_SEQUENCE_SPEC
680 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
683 #ifndef LINK_SSP_SPEC
684 #ifdef TARGET_LIBC_PROVIDES_SSP
685 #define LINK_SSP_SPEC "%{fstack-protector:}"
687 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
691 #ifndef LINK_PIE_SPEC
693 #define LINK_PIE_SPEC "%{pie:-pie} "
695 #define LINK_PIE_SPEC "%{pie:} "
699 /* -u* was put back because both BSD and SysV seem to support it. */
700 /* %{static:} simply prevents an error message if the target machine
701 doesn't handle -static. */
702 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
703 scripts which exist in user specified directories, or in standard
705 #ifndef LINK_COMMAND_SPEC
706 #define LINK_COMMAND_SPEC "\
707 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
708 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
709 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
710 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
711 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
712 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
713 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
714 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
717 #ifndef LINK_LIBGCC_SPEC
718 /* Generate -L options for startfile prefix list. */
719 # define LINK_LIBGCC_SPEC "%D"
722 #ifndef STARTFILE_PREFIX_SPEC
723 # define STARTFILE_PREFIX_SPEC ""
727 # define SYSROOT_SPEC "--sysroot=%R"
730 #ifndef SYSROOT_SUFFIX_SPEC
731 # define SYSROOT_SUFFIX_SPEC ""
734 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
735 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
738 static const char *asm_debug
;
739 static const char *cpp_spec
= CPP_SPEC
;
740 static const char *cc1_spec
= CC1_SPEC
;
741 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
742 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
743 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
744 static const char *asm_spec
= ASM_SPEC
;
745 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
746 static const char *link_spec
= LINK_SPEC
;
747 static const char *lib_spec
= LIB_SPEC
;
748 static const char *mfwrap_spec
= MFWRAP_SPEC
;
749 static const char *mflib_spec
= MFLIB_SPEC
;
750 static const char *link_gomp_spec
= "";
751 static const char *libgcc_spec
= LIBGCC_SPEC
;
752 static const char *endfile_spec
= ENDFILE_SPEC
;
753 static const char *startfile_spec
= STARTFILE_SPEC
;
754 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
755 static const char *linker_name_spec
= LINKER_NAME
;
756 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
757 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
758 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
759 static const char *sysroot_spec
= SYSROOT_SPEC
;
760 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
761 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
763 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
764 There should be no need to override these in target dependent files,
765 but we need to copy them to the specs file so that newer versions
766 of the GCC driver can correctly drive older tool chains with the
767 appropriate -B options. */
769 /* When cpplib handles traditional preprocessing, get rid of this, and
770 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
771 that we default the front end language better. */
772 static const char *trad_capable_cpp
=
773 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
775 /* We don't wrap .d files in %W{} since a missing .d file, and
776 therefore no dependency entry, confuses make into thinking a .o
777 file that happens to exist is up-to-date. */
778 static const char *cpp_unique_options
=
779 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
780 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
781 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
782 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
783 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
784 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
785 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
786 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
787 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
788 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
791 /* This contains cpp options which are common with cc1_options and are passed
792 only when preprocessing only to avoid duplication. We pass the cc1 spec
793 options to the preprocessor so that it the cc1 spec may manipulate
794 options used to set target flags. Those special target flags settings may
795 in turn cause preprocessor symbols to be defined specially. */
796 static const char *cpp_options
=
797 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
798 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
799 %{undef} %{save-temps:-fpch-preprocess}";
801 /* This contains cpp options which are not passed when the preprocessor
802 output will be used by another program. */
803 static const char *cpp_debug_options
= "%{d*}";
805 /* NB: This is shared amongst all front-ends. */
806 static const char *cc1_options
=
807 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
808 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
809 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
810 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
811 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
812 %{Qn:-fno-ident} %{--help:--help}\
813 %{--target-help:--target-help}\
814 %{--help=*:--help=%(VALUE)}\
815 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
816 %{fsyntax-only:-o %j} %{-param*}\
817 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
818 %{coverage:-fprofile-arcs -ftest-coverage}";
820 static const char *asm_options
=
821 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
823 static const char *invoke_as
=
824 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
825 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
827 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
830 /* Some compilers have limits on line lengths, and the multilib_select
831 and/or multilib_matches strings can be very long, so we build them at
833 static struct obstack multilib_obstack
;
834 static const char *multilib_select
;
835 static const char *multilib_matches
;
836 static const char *multilib_defaults
;
837 static const char *multilib_exclusions
;
839 /* Check whether a particular argument is a default argument. */
841 #ifndef MULTILIB_DEFAULTS
842 #define MULTILIB_DEFAULTS { "" }
845 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
847 #ifndef DRIVER_SELF_SPECS
848 #define DRIVER_SELF_SPECS ""
851 /* Adding -fopenmp should imply pthreads. This is particularly important
852 for targets that use different start files and suchlike. */
853 #ifndef GOMP_SELF_SPECS
854 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
857 static const char *const driver_self_specs
[] = {
858 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
861 #ifndef OPTION_DEFAULT_SPECS
862 #define OPTION_DEFAULT_SPECS { "", "" }
871 static const struct default_spec
872 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
876 struct user_specs
*next
;
877 const char *filename
;
880 static struct user_specs
*user_specs_head
, *user_specs_tail
;
882 #ifndef SWITCH_TAKES_ARG
883 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
886 #ifndef WORD_SWITCH_TAKES_ARG
887 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
890 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
891 /* This defines which switches stop a full compilation. */
892 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
893 ((CHAR) == 'c' || (CHAR) == 'S')
895 #ifndef SWITCH_CURTAILS_COMPILATION
896 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
897 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
901 /* Record the mapping from file suffixes for compilation specs. */
905 const char *suffix
; /* Use this compiler for input files
906 whose names end in this suffix. */
908 const char *spec
; /* To use this compiler, run this spec. */
910 const char *cpp_spec
; /* If non-NULL, substitute this spec
911 for `%C', rather than the usual
913 const int combinable
; /* If nonzero, compiler can deal with
914 multiple source files at once (IMA). */
915 const int needs_preprocessing
; /* If nonzero, source files need to
916 be run through a preprocessor. */
919 /* Pointer to a vector of `struct compiler' that gives the spec for
920 compiling a file, based on its suffix.
921 A file that does not end in any of these suffixes will be passed
922 unchanged to the loader and nothing else will be done to it.
924 An entry containing two 0s is used to terminate the vector.
926 If multiple entries match a file, the last matching one is used. */
928 static struct compiler
*compilers
;
930 /* Number of entries in `compilers', not counting the null terminator. */
932 static int n_compilers
;
934 /* The default list of file name suffixes and their compilation specs. */
936 static const struct compiler default_compilers
[] =
938 /* Add lists of suffixes of known languages here. If those languages
939 were not present when we built the driver, we will hit these copies
940 and be given a more meaningful error than "file not used since
941 linking is not done". */
942 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
943 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
944 {".mii", "#Objective-C++", 0, 0, 0},
945 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
946 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
947 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
948 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
949 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
950 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
951 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
952 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
953 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
954 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
955 {".r", "#Ratfor", 0, 0, 0},
956 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
957 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
958 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
959 /* Next come the entries for C. */
960 {".c", "@c", 0, 1, 1},
962 /* cc1 has an integrated ISO C preprocessor. We should invoke the
963 external preprocessor if -save-temps is given. */
964 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
966 %{traditional|ftraditional:\
967 %eGNU C no longer supports -traditional without -E}\
969 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
970 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
971 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
973 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
974 cc1 %(cpp_unique_options) %(cc1_options)}}}\
975 %{!fsyntax-only:%(invoke_as)}} \
977 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
978 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
979 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
980 cc1 %(cpp_unique_options) %(cc1_options)}}\
981 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
983 "%{!E:%e-E or -x required when input is from standard input}\
984 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
985 {".h", "@c-header", 0, 0, 0},
987 /* cc1 has an integrated ISO C preprocessor. We should invoke the
988 external preprocessor if -save-temps is given. */
989 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
991 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
992 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
993 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
995 -o %g.s %{!o*:--output-pch=%i.gch}\
996 %W{o*:--output-pch=%*}%V}\
997 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
998 cc1 %(cpp_unique_options) %(cc1_options)\
999 -o %g.s %{!o*:--output-pch=%i.gch}\
1000 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1001 {".i", "@cpp-output", 0, 1, 0},
1003 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1004 {".s", "@assembler", 0, 1, 0},
1006 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1007 {".S", "@assembler-with-cpp", 0, 1, 0},
1008 {"@assembler-with-cpp",
1009 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1010 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1011 %{E|M|MM:%(cpp_debug_options)}\
1012 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1013 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1015 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1016 %{E|M|MM:%(cpp_debug_options)}\
1017 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1018 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1023 /* Mark end of table. */
1027 /* Number of elements in default_compilers, not counting the terminator. */
1029 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1031 /* A vector of options to give to the linker.
1032 These options are accumulated by %x,
1033 and substituted into the linker command with %X. */
1034 static int n_linker_options
;
1035 static char **linker_options
;
1037 /* A vector of options to give to the assembler.
1038 These options are accumulated by -Wa,
1039 and substituted into the assembler command with %Y. */
1040 static int n_assembler_options
;
1041 static char **assembler_options
;
1043 /* A vector of options to give to the preprocessor.
1044 These options are accumulated by -Wp,
1045 and substituted into the preprocessor command with %Z. */
1046 static int n_preprocessor_options
;
1047 static char **preprocessor_options
;
1049 /* Define how to map long options into short ones. */
1051 /* This structure describes one mapping. */
1054 /* The long option's name. */
1055 const char *const name
;
1056 /* The equivalent short option. */
1057 const char *const equivalent
;
1058 /* Argument info. A string of flag chars; NULL equals no options.
1059 a => argument required.
1060 o => argument optional.
1061 j => join argument to equivalent, making one word.
1062 * => require other text after NAME as an argument. */
1063 const char *const arg_info
;
1066 /* This is the table of mappings. Mappings are tried sequentially
1067 for each option encountered; the first one that matches, wins. */
1069 static const struct option_map option_map
[] =
1071 {"--all-warnings", "-Wall", 0},
1072 {"--ansi", "-ansi", 0},
1073 {"--assemble", "-S", 0},
1074 {"--assert", "-A", "a"},
1075 {"--classpath", "-fclasspath=", "aj"},
1076 {"--bootclasspath", "-fbootclasspath=", "aj"},
1077 {"--CLASSPATH", "-fclasspath=", "aj"},
1078 {"--combine", "-combine", 0},
1079 {"--comments", "-C", 0},
1080 {"--comments-in-macros", "-CC", 0},
1081 {"--compile", "-c", 0},
1082 {"--debug", "-g", "oj"},
1083 {"--define-macro", "-D", "aj"},
1084 {"--dependencies", "-M", 0},
1085 {"--dump", "-d", "a"},
1086 {"--dumpbase", "-dumpbase", "a"},
1087 {"--encoding", "-fencoding=", "aj"},
1088 {"--entry", "-e", 0},
1089 {"--extra-warnings", "-W", 0},
1090 {"--extdirs", "-fextdirs=", "aj"},
1091 {"--for-assembler", "-Wa", "a"},
1092 {"--for-linker", "-Xlinker", "a"},
1093 {"--force-link", "-u", "a"},
1094 {"--coverage", "-coverage", 0},
1095 {"--imacros", "-imacros", "a"},
1096 {"--include", "-include", "a"},
1097 {"--include-barrier", "-I-", 0},
1098 {"--include-directory", "-I", "aj"},
1099 {"--include-directory-after", "-idirafter", "a"},
1100 {"--include-prefix", "-iprefix", "a"},
1101 {"--include-with-prefix", "-iwithprefix", "a"},
1102 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1103 {"--include-with-prefix-after", "-iwithprefix", "a"},
1104 {"--language", "-x", "a"},
1105 {"--library-directory", "-L", "a"},
1106 {"--machine", "-m", "aj"},
1107 {"--machine-", "-m", "*j"},
1108 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1109 {"--no-line-commands", "-P", 0},
1110 {"--no-precompiled-includes", "-noprecomp", 0},
1111 {"--no-standard-includes", "-nostdinc", 0},
1112 {"--no-standard-libraries", "-nostdlib", 0},
1113 {"--no-warnings", "-w", 0},
1114 {"--optimize", "-O", "oj"},
1115 {"--output", "-o", "a"},
1116 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1117 {"--param", "--param", "a"},
1118 {"--pass-exit-codes", "-pass-exit-codes", 0},
1119 {"--pedantic", "-pedantic", 0},
1120 {"--pedantic-errors", "-pedantic-errors", 0},
1121 {"--pie", "-pie", 0},
1122 {"--pipe", "-pipe", 0},
1123 {"--prefix", "-B", "a"},
1124 {"--preprocess", "-E", 0},
1125 {"--print-search-dirs", "-print-search-dirs", 0},
1126 {"--print-file-name", "-print-file-name=", "aj"},
1127 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1128 {"--print-missing-file-dependencies", "-MG", 0},
1129 {"--print-multi-lib", "-print-multi-lib", 0},
1130 {"--print-multi-directory", "-print-multi-directory", 0},
1131 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1132 {"--print-prog-name", "-print-prog-name=", "aj"},
1133 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1134 {"--profile", "-p", 0},
1135 {"--profile-blocks", "-a", 0},
1136 {"--quiet", "-q", 0},
1137 {"--resource", "-fcompile-resource=", "aj"},
1138 {"--save-temps", "-save-temps", 0},
1139 {"--shared", "-shared", 0},
1140 {"--silent", "-q", 0},
1141 {"--specs", "-specs=", "aj"},
1142 {"--static", "-static", 0},
1143 {"--std", "-std=", "aj"},
1144 {"--symbolic", "-symbolic", 0},
1145 {"--sysroot", "--sysroot=", "aj"},
1146 {"--time", "-time", 0},
1147 {"--trace-includes", "-H", 0},
1148 {"--traditional", "-traditional", 0},
1149 {"--traditional-cpp", "-traditional-cpp", 0},
1150 {"--trigraphs", "-trigraphs", 0},
1151 {"--undefine-macro", "-U", "aj"},
1152 {"--user-dependencies", "-MM", 0},
1153 {"--verbose", "-v", 0},
1154 {"--warn-", "-W", "*j"},
1155 {"--write-dependencies", "-MD", 0},
1156 {"--write-user-dependencies", "-MMD", 0},
1161 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1162 static const struct {
1163 const char *const option_found
;
1164 const char *const replacements
;
1165 } target_option_translations
[] =
1167 TARGET_OPTION_TRANSLATE_TABLE
,
1172 /* Translate the options described by *ARGCP and *ARGVP.
1173 Make a new vector and store it back in *ARGVP,
1174 and store its length in *ARGVC. */
1177 translate_options (int *argcp
, const char *const **argvp
)
1181 const char *const *argv
= *argvp
;
1182 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1183 const char **newv
= xmalloc (newvsize
);
1187 newv
[newindex
++] = argv
[i
++];
1191 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1195 target_option_translations
[tott_idx
].option_found
;
1198 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1205 for (sp
= target_option_translations
[tott_idx
].replacements
;
1212 newvsize
+= spaces
* sizeof (const char *);
1213 newv
= xrealloc (newv
, newvsize
);
1215 sp
= target_option_translations
[tott_idx
].replacements
;
1224 newv
[newindex
++] = np
;
1225 while (*np
!= ' ' && *np
)
1236 if (target_option_translations
[tott_idx
].option_found
)
1240 /* Translate -- options. */
1241 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1244 /* Find a mapping that applies to this option. */
1245 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1247 size_t optlen
= strlen (option_map
[j
].name
);
1248 size_t arglen
= strlen (argv
[i
]);
1249 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1250 const char *arginfo
= option_map
[j
].arg_info
;
1255 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1257 const char *arg
= 0;
1259 if (arglen
< optlen
)
1262 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1263 if (strlen (option_map
[k
].name
) >= arglen
1264 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1266 error ("ambiguous abbreviation %s", argv
[i
]);
1270 if (k
!= ARRAY_SIZE (option_map
))
1274 if (arglen
> optlen
)
1276 /* If the option has an argument, accept that. */
1277 if (argv
[i
][optlen
] == '=')
1278 arg
= argv
[i
] + optlen
+ 1;
1280 /* If this mapping requires extra text at end of name,
1281 accept that as "argument". */
1282 else if (strchr (arginfo
, '*') != 0)
1283 arg
= argv
[i
] + optlen
;
1285 /* Otherwise, extra text at end means mismatch.
1286 Try other mappings. */
1291 else if (strchr (arginfo
, '*') != 0)
1293 error ("incomplete '%s' option", option_map
[j
].name
);
1297 /* Handle arguments. */
1298 if (strchr (arginfo
, 'a') != 0)
1304 error ("missing argument to '%s' option",
1305 option_map
[j
].name
);
1312 else if (strchr (arginfo
, '*') != 0)
1314 else if (strchr (arginfo
, 'o') == 0)
1317 error ("extraneous argument to '%s' option",
1318 option_map
[j
].name
);
1322 /* Store the translation as one argv elt or as two. */
1323 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1324 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1328 newv
[newindex
++] = option_map
[j
].equivalent
;
1329 newv
[newindex
++] = arg
;
1332 newv
[newindex
++] = option_map
[j
].equivalent
;
1340 /* Handle old-fashioned options--just copy them through,
1341 with their arguments. */
1342 else if (argv
[i
][0] == '-')
1344 const char *p
= argv
[i
] + 1;
1348 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1349 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1350 else if (WORD_SWITCH_TAKES_ARG (p
))
1351 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1352 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1355 else if (! strcmp (p
, "Xlinker"))
1357 else if (! strcmp (p
, "Xpreprocessor"))
1359 else if (! strcmp (p
, "Xassembler"))
1362 /* Watch out for an option at the end of the command line that
1363 is missing arguments, and avoid skipping past the end of the
1365 if (nskip
+ i
> argc
)
1370 newv
[newindex
++] = argv
[i
++];
1375 /* Ordinary operands, or +e options. */
1376 newv
[newindex
++] = argv
[i
++];
1386 skip_whitespace (char *p
)
1390 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1391 be considered whitespace. */
1392 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1394 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1408 /* Structures to keep track of prefixes to try when looking for files. */
1412 const char *prefix
; /* String to prepend to the path. */
1413 struct prefix_list
*next
; /* Next in linked list. */
1414 int require_machine_suffix
; /* Don't use without machine_suffix. */
1415 /* 2 means try both machine_suffix and just_machine_suffix. */
1416 int priority
; /* Sort key - priority within list. */
1417 int os_multilib
; /* 1 if OS multilib scheme should be used,
1418 0 for GCC multilib scheme. */
1423 struct prefix_list
*plist
; /* List of prefixes to try */
1424 int max_len
; /* Max length of a prefix in PLIST */
1425 const char *name
; /* Name of this list (used in config stuff) */
1428 /* List of prefixes to try when looking for executables. */
1430 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1432 /* List of prefixes to try when looking for startup (crt0) files. */
1434 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1436 /* List of prefixes to try when looking for include files. */
1438 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1440 /* Suffix to attach to directories searched for commands.
1441 This looks like `MACHINE/VERSION/'. */
1443 static const char *machine_suffix
= 0;
1445 /* Suffix to attach to directories searched for commands.
1446 This is just `MACHINE/'. */
1448 static const char *just_machine_suffix
= 0;
1450 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1452 static const char *gcc_exec_prefix
;
1454 /* Adjusted value of standard_libexec_prefix. */
1456 static const char *gcc_libexec_prefix
;
1458 /* Default prefixes to attach to command names. */
1460 #ifndef STANDARD_STARTFILE_PREFIX_1
1461 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1463 #ifndef STANDARD_STARTFILE_PREFIX_2
1464 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1467 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1468 #undef MD_EXEC_PREFIX
1469 #undef MD_STARTFILE_PREFIX
1470 #undef MD_STARTFILE_PREFIX_1
1473 /* If no prefixes defined, use the null string, which will disable them. */
1474 #ifndef MD_EXEC_PREFIX
1475 #define MD_EXEC_PREFIX ""
1477 #ifndef MD_STARTFILE_PREFIX
1478 #define MD_STARTFILE_PREFIX ""
1480 #ifndef MD_STARTFILE_PREFIX_1
1481 #define MD_STARTFILE_PREFIX_1 ""
1484 /* These directories are locations set at configure-time based on the
1485 --prefix option provided to configure. Their initializers are
1486 defined in Makefile.in. These paths are not *directly* used when
1487 gcc_exec_prefix is set because, in that case, we know where the
1488 compiler has been installed, and use paths relative to that
1489 location instead. */
1490 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1491 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1492 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1493 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1495 /* For native compilers, these are well-known paths containing
1496 components that may be provided by the system. For cross
1497 compilers, these paths are not used. */
1498 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1499 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1500 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1501 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1502 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1503 static const char *const standard_startfile_prefix_1
1504 = STANDARD_STARTFILE_PREFIX_1
;
1505 static const char *const standard_startfile_prefix_2
1506 = STANDARD_STARTFILE_PREFIX_2
;
1508 /* A relative path to be used in finding the location of tools
1509 relative to the driver. */
1510 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1512 /* Subdirectory to use for locating libraries. Set by
1513 set_multilib_dir based on the compilation options. */
1515 static const char *multilib_dir
;
1517 /* Subdirectory to use for locating libraries in OS conventions. Set by
1518 set_multilib_dir based on the compilation options. */
1520 static const char *multilib_os_dir
;
1522 /* Structure to keep track of the specs that have been defined so far.
1523 These are accessed using %(specname) or %[specname] in a compiler
1528 /* The following 2 fields must be first */
1529 /* to allow EXTRA_SPECS to be initialized */
1530 const char *name
; /* name of the spec. */
1531 const char *ptr
; /* available ptr if no static pointer */
1533 /* The following fields are not initialized */
1534 /* by EXTRA_SPECS */
1535 const char **ptr_spec
; /* pointer to the spec itself. */
1536 struct spec_list
*next
; /* Next spec in linked list. */
1537 int name_len
; /* length of the name */
1538 int alloc_p
; /* whether string was allocated */
1541 #define INIT_STATIC_SPEC(NAME,PTR) \
1542 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1544 /* List of statically defined specs. */
1545 static struct spec_list static_specs
[] =
1547 INIT_STATIC_SPEC ("asm", &asm_spec
),
1548 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1549 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1550 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1551 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1552 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1553 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1554 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1555 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1556 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1557 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1558 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1559 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1560 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1561 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1562 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1563 INIT_STATIC_SPEC ("link", &link_spec
),
1564 INIT_STATIC_SPEC ("lib", &lib_spec
),
1565 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1566 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1567 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1568 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1569 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1570 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1571 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1572 INIT_STATIC_SPEC ("version", &compiler_version
),
1573 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1574 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1575 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1576 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1577 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1578 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1579 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1580 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1581 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1582 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1583 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1584 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1585 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1586 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1587 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1590 #ifdef EXTRA_SPECS /* additional specs needed */
1591 /* Structure to keep track of just the first two args of a spec_list.
1592 That is all that the EXTRA_SPECS macro gives us. */
1595 const char *const name
;
1596 const char *const ptr
;
1599 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1600 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1603 /* List of dynamically allocates specs that have been defined so far. */
1605 static struct spec_list
*specs
= (struct spec_list
*) 0;
1607 /* List of static spec functions. */
1609 static const struct spec_function static_spec_functions
[] =
1611 { "getenv", getenv_spec_function
},
1612 { "if-exists", if_exists_spec_function
},
1613 { "if-exists-else", if_exists_else_spec_function
},
1614 { "replace-outfile", replace_outfile_spec_function
},
1615 { "version-compare", version_compare_spec_function
},
1616 { "include", include_spec_function
},
1617 #ifdef EXTRA_SPEC_FUNCTIONS
1618 EXTRA_SPEC_FUNCTIONS
1623 static int processing_spec_function
;
1625 /* Add appropriate libgcc specs to OBSTACK, taking into account
1626 various permutations of -shared-libgcc, -shared, and such. */
1628 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1630 #ifndef USE_LD_AS_NEEDED
1631 #define USE_LD_AS_NEEDED 0
1635 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1636 const char *static_name
, const char *eh_name
)
1640 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1641 "%{!static:%{!static-libgcc:"
1642 #if USE_LD_AS_NEEDED
1643 "%{!shared-libgcc:",
1644 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1647 shared_name
, "%{!shared: ", static_name
, "}"
1651 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1652 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1656 "%{shared-libgcc:", shared_name
, "}"
1657 "%{!shared-libgcc:", static_name
, "}"
1660 "%{shared:", shared_name
, "}"
1665 obstack_grow (obstack
, buf
, strlen (buf
));
1668 #endif /* ENABLE_SHARED_LIBGCC */
1670 /* Initialize the specs lookup routines. */
1675 struct spec_list
*next
= (struct spec_list
*) 0;
1676 struct spec_list
*sl
= (struct spec_list
*) 0;
1680 return; /* Already initialized. */
1683 notice ("Using built-in specs.\n");
1686 extra_specs
= xcalloc (sizeof (struct spec_list
),
1687 ARRAY_SIZE (extra_specs_1
));
1689 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1691 sl
= &extra_specs
[i
];
1692 sl
->name
= extra_specs_1
[i
].name
;
1693 sl
->ptr
= extra_specs_1
[i
].ptr
;
1695 sl
->name_len
= strlen (sl
->name
);
1696 sl
->ptr_spec
= &sl
->ptr
;
1701 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1702 on ?: in file-scope variable initializations. */
1703 asm_debug
= ASM_DEBUG_SPEC
;
1705 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1707 sl
= &static_specs
[i
];
1712 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1713 /* ??? If neither -shared-libgcc nor --static-libgcc was
1714 seen, then we should be making an educated guess. Some proposed
1715 heuristics for ELF include:
1717 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1718 program will be doing dynamic loading, which will likely
1719 need the shared libgcc.
1721 (2) If "-ldl", then it's also a fair bet that we're doing
1724 (3) For each ET_DYN we're linking against (either through -lfoo
1725 or /some/path/foo.so), check to see whether it or one of
1726 its dependencies depends on a shared libgcc.
1730 If the runtime is fixed to look for program headers instead
1731 of calling __register_frame_info at all, for each object,
1732 use the shared libgcc if any EH symbol referenced.
1734 If crtstuff is fixed to not invoke __register_frame_info
1735 automatically, for each object, use the shared libgcc if
1736 any non-empty unwind section found.
1738 Doing any of this probably requires invoking an external program to
1739 do the actual object file scanning. */
1741 const char *p
= libgcc_spec
;
1744 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1745 when given the proper command line arguments. */
1748 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1750 init_gcc_specs (&obstack
,
1752 #ifdef USE_LIBUNWIND_EXCEPTIONS
1758 #ifdef USE_LIBUNWIND_EXCEPTIONS
1759 # ifdef HAVE_LD_STATIC_DYNAMIC
1760 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1770 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1772 /* Ug. We don't know shared library extensions. Hope that
1773 systems that use this form don't do shared libraries. */
1774 init_gcc_specs (&obstack
,
1778 #ifdef USE_LIBUNWIND_EXCEPTIONS
1787 obstack_1grow (&obstack
, *p
);
1788 in_sep
= (*p
== ' ');
1793 obstack_1grow (&obstack
, '\0');
1794 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1797 #ifdef USE_AS_TRADITIONAL_FORMAT
1798 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1800 static const char tf
[] = "--traditional-format ";
1801 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1802 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1803 asm_spec
= XOBFINISH (&obstack
, const char *);
1807 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1808 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1809 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1810 link_spec
= XOBFINISH (&obstack
, const char *);
1816 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1817 removed; If the spec starts with a + then SPEC is added to the end of the
1821 set_spec (const char *name
, const char *spec
)
1823 struct spec_list
*sl
;
1824 const char *old_spec
;
1825 int name_len
= strlen (name
);
1828 /* If this is the first call, initialize the statically allocated specs. */
1831 struct spec_list
*next
= (struct spec_list
*) 0;
1832 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1834 sl
= &static_specs
[i
];
1841 /* See if the spec already exists. */
1842 for (sl
= specs
; sl
; sl
= sl
->next
)
1843 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1848 /* Not found - make it. */
1849 sl
= XNEW (struct spec_list
);
1850 sl
->name
= xstrdup (name
);
1851 sl
->name_len
= name_len
;
1852 sl
->ptr_spec
= &sl
->ptr
;
1854 *(sl
->ptr_spec
) = "";
1859 old_spec
= *(sl
->ptr_spec
);
1860 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1861 ? concat (old_spec
, spec
+ 1, NULL
)
1866 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1869 /* Free the old spec. */
1870 if (old_spec
&& sl
->alloc_p
)
1871 free ((void *) old_spec
);
1876 /* Accumulate a command (program name and args), and run it. */
1878 /* Vector of pointers to arguments in the current line of specifications. */
1880 static const char **argbuf
;
1882 /* Number of elements allocated in argbuf. */
1884 static int argbuf_length
;
1886 /* Number of elements in argbuf currently in use (containing args). */
1888 static int argbuf_index
;
1890 /* Position in the argbuf array containing the name of the output file
1891 (the value associated with the "-o" flag). */
1893 static int have_o_argbuf_index
= 0;
1895 /* Were the options -c or -S passed. */
1896 static int have_c
= 0;
1898 /* Was the option -o passed. */
1899 static int have_o
= 0;
1901 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1902 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1905 static struct temp_name
{
1906 const char *suffix
; /* suffix associated with the code. */
1907 int length
; /* strlen (suffix). */
1908 int unique
; /* Indicates whether %g or %u/%U was used. */
1909 const char *filename
; /* associated filename. */
1910 int filename_length
; /* strlen (filename). */
1911 struct temp_name
*next
;
1914 /* Number of commands executed so far. */
1916 static int execution_count
;
1918 /* Number of commands that exited with a signal. */
1920 static int signal_count
;
1922 /* Name with which this program was invoked. */
1924 static const char *programname
;
1926 /* Allocate the argument vector. */
1932 argbuf
= XNEWVEC (const char *, argbuf_length
);
1935 /* Clear out the vector of arguments (after a command is executed). */
1943 /* Add one argument to the vector at the end.
1944 This is done when a space is seen or at the end of the line.
1945 If DELETE_ALWAYS is nonzero, the arg is a filename
1946 and the file should be deleted eventually.
1947 If DELETE_FAILURE is nonzero, the arg is a filename
1948 and the file should be deleted if this compilation fails. */
1951 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1953 if (argbuf_index
+ 1 == argbuf_length
)
1954 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1956 argbuf
[argbuf_index
++] = arg
;
1957 argbuf
[argbuf_index
] = 0;
1959 if (strcmp (arg
, "-o") == 0)
1960 have_o_argbuf_index
= argbuf_index
;
1961 if (delete_always
|| delete_failure
)
1962 record_temp_file (arg
, delete_always
, delete_failure
);
1965 /* Load specs from a file name named FILENAME, replacing occurrences of
1966 various different types of line-endings, \r\n, \n\r and just \r, with
1970 load_specs (const char *filename
)
1974 struct stat statbuf
;
1981 notice ("Reading specs from %s\n", filename
);
1983 /* Open and stat the file. */
1984 desc
= open (filename
, O_RDONLY
, 0);
1986 pfatal_with_name (filename
);
1987 if (stat (filename
, &statbuf
) < 0)
1988 pfatal_with_name (filename
);
1990 /* Read contents of file into BUFFER. */
1991 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1992 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1994 pfatal_with_name (filename
);
1995 buffer
[readlen
] = 0;
1998 specs
= XNEWVEC (char, readlen
+ 1);
2000 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2006 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2008 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2022 /* Read compilation specs from a file named FILENAME,
2023 replacing the default ones.
2025 A suffix which starts with `*' is a definition for
2026 one of the machine-specific sub-specs. The "suffix" should be
2027 *asm, *cc1, *cpp, *link, *startfile, etc.
2028 The corresponding spec is stored in asm_spec, etc.,
2029 rather than in the `compilers' vector.
2031 Anything invalid in the file is a fatal error. */
2034 read_specs (const char *filename
, int main_p
)
2039 buffer
= load_specs (filename
);
2041 /* Scan BUFFER for specs, putting them in the vector. */
2047 char *in
, *out
, *p1
, *p2
, *p3
;
2049 /* Advance P in BUFFER to the next nonblank nocomment line. */
2050 p
= skip_whitespace (p
);
2054 /* Is this a special command that starts with '%'? */
2055 /* Don't allow this for the main specs file, since it would
2056 encourage people to overwrite it. */
2057 if (*p
== '%' && !main_p
)
2060 while (*p
&& *p
!= '\n')
2066 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2067 && (p1
[sizeof "%include" - 1] == ' '
2068 || p1
[sizeof "%include" - 1] == '\t'))
2072 p1
+= sizeof ("%include");
2073 while (*p1
== ' ' || *p1
== '\t')
2076 if (*p1
++ != '<' || p
[-2] != '>')
2077 fatal ("specs %%include syntax malformed after %ld characters",
2078 (long) (p1
- buffer
+ 1));
2081 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2082 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2085 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2086 && (p1
[sizeof "%include_noerr" - 1] == ' '
2087 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2091 p1
+= sizeof "%include_noerr";
2092 while (*p1
== ' ' || *p1
== '\t')
2095 if (*p1
++ != '<' || p
[-2] != '>')
2096 fatal ("specs %%include syntax malformed after %ld characters",
2097 (long) (p1
- buffer
+ 1));
2100 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2102 read_specs (new_filename
, FALSE
);
2103 else if (verbose_flag
)
2104 notice ("could not find specs file %s\n", p1
);
2107 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2108 && (p1
[sizeof "%rename" - 1] == ' '
2109 || p1
[sizeof "%rename" - 1] == '\t'))
2112 struct spec_list
*sl
;
2113 struct spec_list
*newsl
;
2115 /* Get original name. */
2116 p1
+= sizeof "%rename";
2117 while (*p1
== ' ' || *p1
== '\t')
2120 if (! ISALPHA ((unsigned char) *p1
))
2121 fatal ("specs %%rename syntax malformed after %ld characters",
2122 (long) (p1
- buffer
));
2125 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2128 if (*p2
!= ' ' && *p2
!= '\t')
2129 fatal ("specs %%rename syntax malformed after %ld characters",
2130 (long) (p2
- buffer
));
2134 while (*p2
== ' ' || *p2
== '\t')
2137 if (! ISALPHA ((unsigned char) *p2
))
2138 fatal ("specs %%rename syntax malformed after %ld characters",
2139 (long) (p2
- buffer
));
2141 /* Get new spec name. */
2143 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2147 fatal ("specs %%rename syntax malformed after %ld characters",
2148 (long) (p3
- buffer
));
2151 for (sl
= specs
; sl
; sl
= sl
->next
)
2152 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2156 fatal ("specs %s spec was not found to be renamed", p1
);
2158 if (strcmp (p1
, p2
) == 0)
2161 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2162 if (strcmp (newsl
->name
, p2
) == 0)
2163 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2168 notice ("rename spec %s to %s\n", p1
, p2
);
2170 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2174 set_spec (p2
, *(sl
->ptr_spec
));
2176 free ((void *) *(sl
->ptr_spec
));
2178 *(sl
->ptr_spec
) = "";
2183 fatal ("specs unknown %% command after %ld characters",
2184 (long) (p1
- buffer
));
2187 /* Find the colon that should end the suffix. */
2189 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2192 /* The colon shouldn't be missing. */
2194 fatal ("specs file malformed after %ld characters",
2195 (long) (p1
- buffer
));
2197 /* Skip back over trailing whitespace. */
2199 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2202 /* Copy the suffix to a string. */
2203 suffix
= save_string (p
, p2
- p
);
2204 /* Find the next line. */
2205 p
= skip_whitespace (p1
+ 1);
2207 fatal ("specs file malformed after %ld characters",
2208 (long) (p
- buffer
));
2211 /* Find next blank line or end of string. */
2212 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2215 /* Specs end at the blank line and do not include the newline. */
2216 spec
= save_string (p
, p1
- p
);
2219 /* Delete backslash-newline sequences from the spec. */
2224 if (in
[0] == '\\' && in
[1] == '\n')
2226 else if (in
[0] == '#')
2227 while (*in
&& *in
!= '\n')
2235 if (suffix
[0] == '*')
2237 if (! strcmp (suffix
, "*link_command"))
2238 link_command_spec
= spec
;
2240 set_spec (suffix
+ 1, spec
);
2244 /* Add this pair to the vector. */
2246 = xrealloc (compilers
,
2247 (n_compilers
+ 2) * sizeof (struct compiler
));
2249 compilers
[n_compilers
].suffix
= suffix
;
2250 compilers
[n_compilers
].spec
= spec
;
2252 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2256 link_command_spec
= spec
;
2259 if (link_command_spec
== 0)
2260 fatal ("spec file has no spec for linking");
2263 /* Record the names of temporary files we tell compilers to write,
2264 and delete them at the end of the run. */
2266 /* This is the common prefix we use to make temp file names.
2267 It is chosen once for each run of this program.
2268 It is substituted into a spec by %g or %j.
2269 Thus, all temp file names contain this prefix.
2270 In practice, all temp file names start with this prefix.
2272 This prefix comes from the envvar TMPDIR if it is defined;
2273 otherwise, from the P_tmpdir macro if that is defined;
2274 otherwise, in /usr/tmp or /tmp;
2275 or finally the current directory if all else fails. */
2277 static const char *temp_filename
;
2279 /* Length of the prefix. */
2281 static int temp_filename_length
;
2283 /* Define the list of temporary files to delete. */
2288 struct temp_file
*next
;
2291 /* Queue of files to delete on success or failure of compilation. */
2292 static struct temp_file
*always_delete_queue
;
2293 /* Queue of files to delete on failure of compilation. */
2294 static struct temp_file
*failure_delete_queue
;
2296 /* Record FILENAME as a file to be deleted automatically.
2297 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2298 otherwise delete it in any case.
2299 FAIL_DELETE nonzero means delete it if a compilation step fails;
2300 otherwise delete it in any case. */
2303 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2305 char *const name
= xstrdup (filename
);
2309 struct temp_file
*temp
;
2310 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2311 if (! strcmp (name
, temp
->name
))
2314 temp
= XNEW (struct temp_file
);
2315 temp
->next
= always_delete_queue
;
2317 always_delete_queue
= temp
;
2324 struct temp_file
*temp
;
2325 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2326 if (! strcmp (name
, temp
->name
))
2329 temp
= XNEW (struct temp_file
);
2330 temp
->next
= failure_delete_queue
;
2332 failure_delete_queue
= temp
;
2338 /* Delete all the temporary files whose names we previously recorded. */
2340 #ifndef DELETE_IF_ORDINARY
2341 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2344 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2345 if (unlink (NAME) < 0) \
2347 perror_with_name (NAME); \
2352 delete_if_ordinary (const char *name
)
2358 printf ("Delete %s? (y or n) ", name
);
2362 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2365 if (i
== 'y' || i
== 'Y')
2367 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2371 delete_temp_files (void)
2373 struct temp_file
*temp
;
2375 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2376 delete_if_ordinary (temp
->name
);
2377 always_delete_queue
= 0;
2380 /* Delete all the files to be deleted on error. */
2383 delete_failure_queue (void)
2385 struct temp_file
*temp
;
2387 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2388 delete_if_ordinary (temp
->name
);
2392 clear_failure_queue (void)
2394 failure_delete_queue
= 0;
2397 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2399 If DO_MULTI is true iterate over the paths twice, first with multilib
2400 suffix then without, otherwise iterate over the paths once without
2401 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2402 to avoid visiting the same path twice, but we could do better. For
2403 instance, /usr/lib/../lib is considered different from /usr/lib.
2404 At least EXTRA_SPACE chars past the end of the path passed to
2405 CALLBACK are available for use by the callback.
2406 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2408 Returns the value returned by CALLBACK. */
2411 for_each_path (const struct path_prefix
*paths
,
2414 void *(*callback
) (char *, void *),
2415 void *callback_info
)
2417 struct prefix_list
*pl
;
2418 const char *multi_dir
= NULL
;
2419 const char *multi_os_dir
= NULL
;
2420 const char *multi_suffix
;
2421 const char *just_multi_suffix
;
2424 bool skip_multi_dir
= false;
2425 bool skip_multi_os_dir
= false;
2427 multi_suffix
= machine_suffix
;
2428 just_multi_suffix
= just_machine_suffix
;
2429 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2431 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2432 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2433 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2435 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2436 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2440 size_t multi_dir_len
= 0;
2441 size_t multi_os_dir_len
= 0;
2443 size_t just_suffix_len
;
2447 multi_dir_len
= strlen (multi_dir
);
2449 multi_os_dir_len
= strlen (multi_os_dir
);
2450 suffix_len
= strlen (multi_suffix
);
2451 just_suffix_len
= strlen (just_multi_suffix
);
2455 len
= paths
->max_len
+ extra_space
+ 1;
2456 if (suffix_len
> multi_os_dir_len
)
2459 len
+= multi_os_dir_len
;
2460 path
= XNEWVEC (char, len
);
2463 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2465 len
= strlen (pl
->prefix
);
2466 memcpy (path
, pl
->prefix
, len
);
2468 /* Look first in MACHINE/VERSION subdirectory. */
2469 if (!skip_multi_dir
)
2471 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2472 ret
= callback (path
, callback_info
);
2477 /* Some paths are tried with just the machine (ie. target)
2478 subdir. This is used for finding as, ld, etc. */
2480 && pl
->require_machine_suffix
== 2)
2482 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2483 ret
= callback (path
, callback_info
);
2488 /* Now try the base path. */
2489 if (!pl
->require_machine_suffix
2490 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2492 const char *this_multi
;
2493 size_t this_multi_len
;
2495 if (pl
->os_multilib
)
2497 this_multi
= multi_os_dir
;
2498 this_multi_len
= multi_os_dir_len
;
2502 this_multi
= multi_dir
;
2503 this_multi_len
= multi_dir_len
;
2507 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2511 ret
= callback (path
, callback_info
);
2519 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2522 /* Run through the paths again, this time without multilibs.
2523 Don't repeat any we have already seen. */
2526 free ((char *) multi_dir
);
2528 free ((char *) multi_suffix
);
2529 multi_suffix
= machine_suffix
;
2530 free ((char *) just_multi_suffix
);
2531 just_multi_suffix
= just_machine_suffix
;
2534 skip_multi_dir
= true;
2537 free ((char *) multi_os_dir
);
2538 multi_os_dir
= NULL
;
2541 skip_multi_os_dir
= true;
2546 free ((char *) multi_dir
);
2547 free ((char *) multi_suffix
);
2548 free ((char *) just_multi_suffix
);
2551 free ((char *) multi_os_dir
);
2557 /* Callback for build_search_list. Adds path to obstack being built. */
2559 struct add_to_obstack_info
{
2566 add_to_obstack (char *path
, void *data
)
2568 struct add_to_obstack_info
*info
= data
;
2570 if (info
->check_dir
&& !is_directory (path
, false))
2573 if (!info
->first_time
)
2574 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2576 obstack_grow (info
->ob
, path
, strlen (path
));
2578 info
->first_time
= false;
2582 /* Build a list of search directories from PATHS.
2583 PREFIX is a string to prepend to the list.
2584 If CHECK_DIR_P is true we ensure the directory exists.
2585 If DO_MULTI is true, multilib paths are output first, then
2587 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2588 It is also used by the --print-search-dirs flag. */
2591 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2592 bool check_dir
, bool do_multi
)
2594 struct add_to_obstack_info info
;
2596 info
.ob
= &collect_obstack
;
2597 info
.check_dir
= check_dir
;
2598 info
.first_time
= true;
2600 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2601 obstack_1grow (&collect_obstack
, '=');
2603 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2605 obstack_1grow (&collect_obstack
, '\0');
2606 return XOBFINISH (&collect_obstack
, char *);
2609 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2613 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2616 putenv (build_search_list (paths
, env_var
, true, do_multi
));
2619 /* Check whether NAME can be accessed in MODE. This is like access,
2620 except that it never considers directories to be executable. */
2623 access_check (const char *name
, int mode
)
2629 if (stat (name
, &st
) < 0
2630 || S_ISDIR (st
.st_mode
))
2634 return access (name
, mode
);
2637 /* Callback for find_a_file. Appends the file name to the directory
2638 path. If the resulting file exists in the right mode, return the
2639 full pathname to the file. */
2641 struct file_at_path_info
{
2650 file_at_path (char *path
, void *data
)
2652 struct file_at_path_info
*info
= data
;
2653 size_t len
= strlen (path
);
2655 memcpy (path
+ len
, info
->name
, info
->name_len
);
2656 len
+= info
->name_len
;
2658 /* Some systems have a suffix for executable files.
2659 So try appending that first. */
2660 if (info
->suffix_len
)
2662 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2663 if (access_check (path
, info
->mode
) == 0)
2668 if (access_check (path
, info
->mode
) == 0)
2674 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2675 access to check permissions. If DO_MULTI is true, search multilib
2676 paths then non-multilib paths, otherwise do not search multilib paths.
2677 Return 0 if not found, otherwise return its name, allocated with malloc. */
2680 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2683 struct file_at_path_info info
;
2685 #ifdef DEFAULT_ASSEMBLER
2686 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2687 return xstrdup (DEFAULT_ASSEMBLER
);
2690 #ifdef DEFAULT_LINKER
2691 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2692 return xstrdup (DEFAULT_LINKER
);
2695 /* Determine the filename to execute (special case for absolute paths). */
2697 if (IS_ABSOLUTE_PATH (name
))
2699 if (access (name
, mode
) == 0)
2700 return xstrdup (name
);
2706 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2707 info
.name_len
= strlen (info
.name
);
2708 info
.suffix_len
= strlen (info
.suffix
);
2711 return for_each_path (pprefix
, do_multi
, info
.name_len
+ info
.suffix_len
,
2712 file_at_path
, &info
);
2715 /* Ranking of prefixes in the sort list. -B prefixes are put before
2718 enum path_prefix_priority
2720 PREFIX_PRIORITY_B_OPT
,
2721 PREFIX_PRIORITY_LAST
2724 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2725 order according to PRIORITY. Within each PRIORITY, new entries are
2728 If WARN is nonzero, we will warn if no file is found
2729 through this prefix. WARN should point to an int
2730 which will be set to 1 if this entry is used.
2732 COMPONENT is the value to be passed to update_path.
2734 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2735 the complete value of machine_suffix.
2736 2 means try both machine_suffix and just_machine_suffix. */
2739 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2740 const char *component
, /* enum prefix_priority */ int priority
,
2741 int require_machine_suffix
, int os_multilib
)
2743 struct prefix_list
*pl
, **prev
;
2746 for (prev
= &pprefix
->plist
;
2747 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2748 prev
= &(*prev
)->next
)
2751 /* Keep track of the longest prefix. */
2753 prefix
= update_path (prefix
, component
);
2754 len
= strlen (prefix
);
2755 if (len
> pprefix
->max_len
)
2756 pprefix
->max_len
= len
;
2758 pl
= XNEW (struct prefix_list
);
2759 pl
->prefix
= prefix
;
2760 pl
->require_machine_suffix
= require_machine_suffix
;
2761 pl
->priority
= priority
;
2762 pl
->os_multilib
= os_multilib
;
2764 /* Insert after PREV. */
2769 /* Same as add_prefix, but prepending target_system_root to prefix. */
2770 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2772 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2773 const char *component
,
2774 /* enum prefix_priority */ int priority
,
2775 int require_machine_suffix
, int os_multilib
)
2777 if (!IS_ABSOLUTE_PATH (prefix
))
2778 fatal ("system path '%s' is not absolute", prefix
);
2780 if (target_system_root
)
2782 if (target_sysroot_suffix
)
2783 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2784 prefix
= concat (target_system_root
, prefix
, NULL
);
2786 /* We have to override this because GCC's notion of sysroot
2787 moves along with GCC. */
2791 add_prefix (pprefix
, prefix
, component
, priority
,
2792 require_machine_suffix
, os_multilib
);
2795 /* Execute the command specified by the arguments on the current line of spec.
2796 When using pipes, this includes several piped-together commands
2797 with `|' between them.
2799 Return 0 if successful, -1 if failed. */
2805 int n_commands
; /* # of command. */
2807 struct pex_obj
*pex
;
2810 const char *prog
; /* program name. */
2811 const char **argv
; /* vector of args. */
2814 struct command
*commands
; /* each command buffer with above info. */
2816 gcc_assert (!processing_spec_function
);
2818 /* Count # of piped commands. */
2819 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2820 if (strcmp (argbuf
[i
], "|") == 0)
2823 /* Get storage for each command. */
2824 commands
= alloca (n_commands
* sizeof (struct command
));
2826 /* Split argbuf into its separate piped processes,
2827 and record info about each one.
2828 Also search for the programs that are to be run. */
2830 commands
[0].prog
= argbuf
[0]; /* first command. */
2831 commands
[0].argv
= &argbuf
[0];
2832 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2835 commands
[0].argv
[0] = string
;
2837 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2838 if (strcmp (argbuf
[i
], "|") == 0)
2839 { /* each command. */
2840 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2841 fatal ("-pipe not supported");
2843 argbuf
[i
] = 0; /* termination of command args. */
2844 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2845 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2846 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2849 commands
[n_commands
].argv
[0] = string
;
2853 argbuf
[argbuf_index
] = 0;
2855 /* If -v, print what we are about to do, and maybe query. */
2859 /* For help listings, put a blank line between sub-processes. */
2860 if (print_help_list
)
2861 fputc ('\n', stderr
);
2863 /* Print each piped command as a separate line. */
2864 for (i
= 0; i
< n_commands
; i
++)
2866 const char *const *j
;
2868 if (verbose_only_flag
)
2870 for (j
= commands
[i
].argv
; *j
; j
++)
2873 fprintf (stderr
, " \"");
2874 for (p
= *j
; *p
; ++p
)
2876 if (*p
== '"' || *p
== '\\' || *p
== '$')
2877 fputc ('\\', stderr
);
2880 fputc ('"', stderr
);
2884 for (j
= commands
[i
].argv
; *j
; j
++)
2885 fprintf (stderr
, " %s", *j
);
2887 /* Print a pipe symbol after all but the last command. */
2888 if (i
+ 1 != n_commands
)
2889 fprintf (stderr
, " |");
2890 fprintf (stderr
, "\n");
2893 if (verbose_only_flag
!= 0)
2895 /* verbose_only_flag should act as if the spec was
2896 executed, so increment execution_count before
2897 returning. This prevents spurious warnings about
2898 unused linker input files, etc. */
2903 notice ("\nGo ahead? (y or n) ");
2907 while (getchar () != '\n')
2910 if (i
!= 'y' && i
!= 'Y')
2915 #ifdef ENABLE_VALGRIND_CHECKING
2916 /* Run the each command through valgrind. To simplify prepending the
2917 path to valgrind and the option "-q" (for quiet operation unless
2918 something triggers), we allocate a separate argv array. */
2920 for (i
= 0; i
< n_commands
; i
++)
2926 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2929 argv
= alloca ((argc
+ 3) * sizeof (char *));
2931 argv
[0] = VALGRIND_PATH
;
2933 for (j
= 2; j
< argc
+ 2; j
++)
2934 argv
[j
] = commands
[i
].argv
[j
- 2];
2937 commands
[i
].argv
= argv
;
2938 commands
[i
].prog
= argv
[0];
2942 /* Run each piped subprocess. */
2944 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2945 programname
, temp_filename
);
2947 pfatal_with_name (_("pex_init failed"));
2949 for (i
= 0; i
< n_commands
; i
++)
2953 const char *string
= commands
[i
].argv
[0];
2955 errmsg
= pex_run (pex
,
2956 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2957 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2958 string
, (char * const *) commands
[i
].argv
,
2967 pfatal_with_name (errmsg
);
2971 if (string
!= commands
[i
].prog
)
2972 free ((void *) string
);
2977 /* Wait for all the subprocesses to finish. */
2981 struct pex_time
*times
= NULL
;
2984 statuses
= alloca (n_commands
* sizeof (int));
2985 if (!pex_get_status (pex
, n_commands
, statuses
))
2986 pfatal_with_name (_("failed to get exit status"));
2990 times
= alloca (n_commands
* sizeof (struct pex_time
));
2991 if (!pex_get_times (pex
, n_commands
, times
))
2992 pfatal_with_name (_("failed to get process times"));
2997 for (i
= 0; i
< n_commands
; ++i
)
2999 int status
= statuses
[i
];
3001 if (WIFSIGNALED (status
))
3004 /* SIGPIPE is a special case. It happens in -pipe mode
3005 when the compiler dies before the preprocessor is done,
3006 or the assembler dies before the compiler is done.
3007 There's generally been an error already, and this is
3008 just fallout. So don't generate another error unless
3009 we would otherwise have succeeded. */
3010 if (WTERMSIG (status
) == SIGPIPE
3011 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3019 Internal error: %s (program %s)\n\
3020 Please submit a full bug report.\n\
3021 See %s for instructions.",
3022 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3025 else if (WIFEXITED (status
)
3026 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3028 if (WEXITSTATUS (status
) > greatest_status
)
3029 greatest_status
= WEXITSTATUS (status
);
3035 struct pex_time
*pt
= ×
[i
];
3038 ut
= ((double) pt
->user_seconds
3039 + (double) pt
->user_microseconds
/ 1.0e6
);
3040 st
= ((double) pt
->system_seconds
3041 + (double) pt
->system_microseconds
/ 1.0e6
);
3044 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3052 /* Find all the switches given to us
3053 and make a vector describing them.
3054 The elements of the vector are strings, one per switch given.
3055 If a switch uses following arguments, then the `part1' field
3056 is the switch itself and the `args' field
3057 is a null-terminated vector containing the following arguments.
3058 The `live_cond' field is:
3060 1 if the switch is true in a conditional spec,
3061 -1 if false (overridden by a later switch)
3062 -2 if this switch should be ignored (used in %<S)
3063 The `validated' field is nonzero if any spec has looked at this switch;
3064 if it remains zero at the end of the run, it must be meaningless. */
3067 #define SWITCH_FALSE -1
3068 #define SWITCH_IGNORE -2
3069 #define SWITCH_LIVE 1
3076 unsigned char validated
;
3077 unsigned char ordering
;
3080 static struct switchstr
*switches
;
3082 static int n_switches
;
3084 /* Language is one of three things:
3086 1) The name of a real programming language.
3087 2) NULL, indicating that no one has figured out
3089 3) '*', indicating that the file should be passed
3094 const char *language
;
3095 struct compiler
*incompiler
;
3100 /* Also a vector of input files specified. */
3102 static struct infile
*infiles
;
3106 /* True if multiple input files are being compiled to a single
3109 static bool combine_inputs
;
3111 /* This counts the number of libraries added by lang_specific_driver, so that
3112 we can tell if there were any user supplied any files or libraries. */
3114 static int added_libraries
;
3116 /* And a vector of corresponding output files is made up later. */
3118 const char **outfiles
;
3120 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3122 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3123 is true if we should look for an executable suffix. DO_OBJ
3124 is true if we should look for an object suffix. */
3127 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3128 int do_obj ATTRIBUTE_UNUSED
)
3130 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3138 len
= strlen (name
);
3140 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3141 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3142 if (do_obj
&& len
> 2
3143 && name
[len
- 2] == '.'
3144 && name
[len
- 1] == 'o')
3146 obstack_grow (&obstack
, name
, len
- 2);
3147 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3148 name
= XOBFINISH (&obstack
, const char *);
3152 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3153 /* If there is no filetype, make it the executable suffix (which includes
3154 the "."). But don't get confused if we have just "-o". */
3155 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3158 for (i
= len
- 1; i
>= 0; i
--)
3159 if (IS_DIR_SEPARATOR (name
[i
]))
3162 for (i
++; i
< len
; i
++)
3166 obstack_grow (&obstack
, name
, len
);
3167 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3168 strlen (TARGET_EXECUTABLE_SUFFIX
));
3169 name
= XOBFINISH (&obstack
, const char *);
3176 /* Display the command line switches accepted by gcc. */
3180 printf (_("Usage: %s [options] file...\n"), programname
);
3181 fputs (_("Options:\n"), stdout
);
3183 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3184 fputs (_(" --help Display this information\n"), stdout
);
3185 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3186 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3187 fputs (_(" Display specific types of command line options\n"), stdout
);
3189 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3190 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3191 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3192 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3193 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3194 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3195 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3196 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3197 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3199 -print-multi-lib Display the mapping between command line options and\n\
3200 multiple library search directories\n"), stdout
);
3201 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3202 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3203 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3204 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3205 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3206 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3207 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3208 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3209 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3210 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3211 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3212 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3213 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3214 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3216 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3217 and libraries\n"), stdout
);
3218 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3219 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3220 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3221 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3222 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3223 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3224 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3225 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3226 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3228 -x <language> Specify the language of the following input files\n\
3229 Permissible languages include: c c++ assembler none\n\
3230 'none' means revert to the default behavior of\n\
3231 guessing the language based on the file's extension\n\
3235 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3236 passed on to the various sub-processes invoked by %s. In order to pass\n\
3237 other options on to these processes the -W<letter> options must be used.\n\
3240 /* The rest of the options are displayed by invocations of the various
3245 add_preprocessor_option (const char *option
, int len
)
3247 n_preprocessor_options
++;
3249 if (! preprocessor_options
)
3250 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3252 preprocessor_options
= xrealloc (preprocessor_options
,
3253 n_preprocessor_options
* sizeof (char *));
3255 preprocessor_options
[n_preprocessor_options
- 1] =
3256 save_string (option
, len
);
3260 add_assembler_option (const char *option
, int len
)
3262 n_assembler_options
++;
3264 if (! assembler_options
)
3265 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3267 assembler_options
= xrealloc (assembler_options
,
3268 n_assembler_options
* sizeof (char *));
3270 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3274 add_linker_option (const char *option
, int len
)
3278 if (! linker_options
)
3279 linker_options
= XNEWVEC (char *, n_linker_options
);
3281 linker_options
= xrealloc (linker_options
,
3282 n_linker_options
* sizeof (char *));
3284 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3287 /* Create the vector `switches' and its contents.
3288 Store its length in `n_switches'. */
3291 process_command (int argc
, const char **argv
)
3296 const char *spec_lang
= 0;
3297 int last_language_n_infiles
;
3298 int lang_n_infiles
= 0;
3299 #ifdef MODIFY_TARGET_NAME
3300 int is_modify_target_name
;
3303 const char *tooldir_prefix
;
3305 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3309 added_libraries
= 0;
3311 /* Figure compiler version from version string. */
3313 compiler_version
= temp1
= xstrdup (version_string
);
3315 for (; *temp1
; ++temp1
)
3324 /* If there is a -V or -b option (or both), process it now, before
3325 trying to interpret the rest of the command line.
3326 Use heuristic that all configuration names must have at least
3327 one dash '-'. This allows us to pass options starting with -b. */
3328 if (argc
> 1 && argv
[1][0] == '-'
3329 && (argv
[1][1] == 'V' ||
3330 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3332 const char *new_version
= DEFAULT_TARGET_VERSION
;
3333 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3334 const char *progname
= argv
[0];
3339 while (argc
> 1 && argv
[1][0] == '-'
3340 && (argv
[1][1] == 'V' ||
3341 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3343 char opt
= argv
[1][1];
3345 if (argv
[1][2] != '\0')
3358 fatal ("'-%c' option must have argument", opt
);
3365 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3366 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3368 new_argv0
= xmemdup (progname
, baselen
,
3369 baselen
+ concat_length (new_version
, new_machine
,
3370 "-gcc-", NULL
) + 1);
3371 strcpy (new_argv0
+ baselen
, new_machine
);
3372 strcat (new_argv0
, "-gcc-");
3373 strcat (new_argv0
, new_version
);
3375 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3376 (argc
+ 1) * sizeof (argv
[0]));
3377 new_argv
[0] = new_argv0
;
3379 execvp (new_argv0
, new_argv
);
3380 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3383 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3384 see if we can create it from the pathname specified in argv[0]. */
3386 gcc_libexec_prefix
= standard_libexec_prefix
;
3388 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3389 if (!gcc_exec_prefix
)
3391 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3392 standard_exec_prefix
);
3393 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3394 standard_bindir_prefix
,
3395 standard_libexec_prefix
);
3396 if (gcc_exec_prefix
)
3397 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3401 /* make_relative_prefix requires a program name, but
3402 GCC_EXEC_PREFIX is typically a directory name with a trailing
3403 / (which is ignored by make_relative_prefix), so append a
3405 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3406 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3407 standard_exec_prefix
,
3408 standard_libexec_prefix
);
3410 /* The path is unrelocated, so fallback to the original setting. */
3411 if (!gcc_libexec_prefix
)
3412 gcc_libexec_prefix
= standard_libexec_prefix
;
3418 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3419 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3420 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3422 if (gcc_exec_prefix
)
3424 int len
= strlen (gcc_exec_prefix
);
3426 if (len
> (int) sizeof ("/lib/gcc/") - 1
3427 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3429 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3430 if (IS_DIR_SEPARATOR (*temp
)
3431 && strncmp (temp
+ 1, "lib", 3) == 0
3432 && IS_DIR_SEPARATOR (temp
[4])
3433 && strncmp (temp
+ 5, "gcc", 3) == 0)
3434 len
-= sizeof ("/lib/gcc/") - 1;
3437 set_std_prefix (gcc_exec_prefix
, len
);
3438 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3439 PREFIX_PRIORITY_LAST
, 0, 0);
3440 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3441 PREFIX_PRIORITY_LAST
, 0, 0);
3444 /* COMPILER_PATH and LIBRARY_PATH have values
3445 that are lists of directory names with colons. */
3447 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3450 const char *startp
, *endp
;
3451 char *nstore
= alloca (strlen (temp
) + 3);
3453 startp
= endp
= temp
;
3456 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3458 strncpy (nstore
, startp
, endp
- startp
);
3460 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3461 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3463 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3464 nstore
[endp
- startp
+ 1] = 0;
3467 nstore
[endp
- startp
] = 0;
3468 add_prefix (&exec_prefixes
, nstore
, 0,
3469 PREFIX_PRIORITY_LAST
, 0, 0);
3470 add_prefix (&include_prefixes
, nstore
, 0,
3471 PREFIX_PRIORITY_LAST
, 0, 0);
3474 endp
= startp
= endp
+ 1;
3481 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3482 if (temp
&& *cross_compile
== '0')
3484 const char *startp
, *endp
;
3485 char *nstore
= alloca (strlen (temp
) + 3);
3487 startp
= endp
= temp
;
3490 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3492 strncpy (nstore
, startp
, endp
- startp
);
3494 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3495 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3497 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3498 nstore
[endp
- startp
+ 1] = 0;
3501 nstore
[endp
- startp
] = 0;
3502 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3503 PREFIX_PRIORITY_LAST
, 0, 1);
3506 endp
= startp
= endp
+ 1;
3513 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3514 GET_ENVIRONMENT (temp
, "LPATH");
3515 if (temp
&& *cross_compile
== '0')
3517 const char *startp
, *endp
;
3518 char *nstore
= alloca (strlen (temp
) + 3);
3520 startp
= endp
= temp
;
3523 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3525 strncpy (nstore
, startp
, endp
- startp
);
3527 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3528 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3530 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3531 nstore
[endp
- startp
+ 1] = 0;
3534 nstore
[endp
- startp
] = 0;
3535 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3536 PREFIX_PRIORITY_LAST
, 0, 1);
3539 endp
= startp
= endp
+ 1;
3546 /* Convert new-style -- options to old-style. */
3547 translate_options (&argc
, (const char *const **) &argv
);
3549 /* Do language-specific adjustment/addition of flags. */
3550 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3552 /* Scan argv twice. Here, the first time, just count how many switches
3553 there will be in their vector, and how many input files in theirs.
3554 Here we also parse the switches that cc itself uses (e.g. -v). */
3556 for (i
= 1; i
< argc
; i
++)
3558 if (! strcmp (argv
[i
], "-dumpspecs"))
3560 struct spec_list
*sl
;
3562 for (sl
= specs
; sl
; sl
= sl
->next
)
3563 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3564 if (link_command_spec
)
3565 printf ("*link_command:\n%s\n\n", link_command_spec
);
3568 else if (! strcmp (argv
[i
], "-dumpversion"))
3570 printf ("%s\n", spec_version
);
3573 else if (! strcmp (argv
[i
], "-dumpmachine"))
3575 printf ("%s\n", spec_machine
);
3578 else if (strcmp (argv
[i
], "-fversion") == 0)
3580 /* translate_options () has turned --version into -fversion. */
3581 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3582 printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
3584 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3585 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3589 else if (strcmp (argv
[i
], "-fhelp") == 0)
3591 /* translate_options () has turned --help into -fhelp. */
3592 print_help_list
= 1;
3594 /* We will be passing a dummy file on to the sub-processes. */
3598 /* CPP driver cannot obtain switch from cc1_options. */
3600 add_preprocessor_option ("--help", 6);
3601 add_assembler_option ("--help", 6);
3602 add_linker_option ("--help", 6);
3604 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3606 /* translate_options () has turned --help into -fhelp. */
3607 print_subprocess_help
= 2;
3609 /* We will be passing a dummy file on to the sub-processes. */
3613 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3615 /* translate_options() has turned --target-help into -ftarget-help. */
3616 print_subprocess_help
= 1;
3618 /* We will be passing a dummy file on to the sub-processes. */
3622 /* CPP driver cannot obtain switch from cc1_options. */
3624 add_preprocessor_option ("--target-help", 13);
3625 add_assembler_option ("--target-help", 13);
3626 add_linker_option ("--target-help", 13);
3628 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3630 pass_exit_codes
= 1;
3633 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3634 print_search_dirs
= 1;
3635 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3636 print_file_name
= "libgcc.a";
3637 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3638 print_file_name
= argv
[i
] + 17;
3639 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3640 print_prog_name
= argv
[i
] + 17;
3641 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3642 print_multi_lib
= 1;
3643 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3644 print_multi_directory
= 1;
3645 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3646 print_multi_os_directory
= 1;
3647 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3648 print_sysroot_headers_suffix
= 1;
3649 else if (! strncmp (argv
[i
], "-Wa,", 4))
3652 /* Pass the rest of this option to the assembler. */
3654 /* Split the argument at commas. */
3656 for (j
= 4; argv
[i
][j
]; j
++)
3657 if (argv
[i
][j
] == ',')
3659 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3663 /* Record the part after the last comma. */
3664 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3666 else if (! strncmp (argv
[i
], "-Wp,", 4))
3669 /* Pass the rest of this option to the preprocessor. */
3671 /* Split the argument at commas. */
3673 for (j
= 4; argv
[i
][j
]; j
++)
3674 if (argv
[i
][j
] == ',')
3676 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3680 /* Record the part after the last comma. */
3681 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3683 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3684 /* The +e options to the C++ front-end. */
3686 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3689 /* Split the argument at commas. */
3690 for (j
= 3; argv
[i
][j
]; j
++)
3691 n_infiles
+= (argv
[i
][j
] == ',');
3693 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3696 fatal ("argument to '-Xlinker' is missing");
3701 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3704 fatal ("argument to '-Xpreprocessor' is missing");
3706 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3708 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3711 fatal ("argument to '-Xassembler' is missing");
3713 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3715 else if (strcmp (argv
[i
], "-l") == 0)
3718 fatal ("argument to '-l' is missing");
3723 else if (strncmp (argv
[i
], "-l", 2) == 0)
3725 else if (strcmp (argv
[i
], "-save-temps") == 0)
3727 save_temps_flag
= 1;
3730 else if (strcmp (argv
[i
], "-combine") == 0)
3735 else if (strcmp (argv
[i
], "-specs") == 0)
3737 struct user_specs
*user
= XNEW (struct user_specs
);
3739 fatal ("argument to '-specs' is missing");
3741 user
->next
= (struct user_specs
*) 0;
3742 user
->filename
= argv
[i
];
3743 if (user_specs_tail
)
3744 user_specs_tail
->next
= user
;
3746 user_specs_head
= user
;
3747 user_specs_tail
= user
;
3749 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3751 struct user_specs
*user
= XNEW (struct user_specs
);
3752 if (strlen (argv
[i
]) == 7)
3753 fatal ("argument to '-specs=' is missing");
3755 user
->next
= (struct user_specs
*) 0;
3756 user
->filename
= argv
[i
] + 7;
3757 if (user_specs_tail
)
3758 user_specs_tail
->next
= user
;
3760 user_specs_head
= user
;
3761 user_specs_tail
= user
;
3763 else if (strcmp (argv
[i
], "-time") == 0)
3765 else if (strcmp (argv
[i
], "-pipe") == 0)
3767 /* -pipe has to go into the switches array as well as
3772 else if (strcmp (argv
[i
], "-###") == 0)
3774 /* This is similar to -v except that there is no execution
3775 of the commands and the echoed arguments are quoted. It
3776 is intended for use in shell scripts to capture the
3777 driver-generated command line. */
3778 verbose_only_flag
++;
3781 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3783 const char *p
= &argv
[i
][1];
3789 if (NULL
== strchr(argv
[i
] + 2, '-'))
3794 fatal ("'-%c' must come at the start of the command line", c
);
3802 if (p
[1] == 0 && i
+ 1 == argc
)
3803 fatal ("argument to '-B' is missing");
3809 len
= strlen (value
);
3811 /* Catch the case where the user has forgotten to append a
3812 directory separator to the path. Note, they may be using
3813 -B to add an executable name prefix, eg "i386-elf-", in
3814 order to distinguish between multiple installations of
3815 GCC in the same directory. Hence we must check to see
3816 if appending a directory separator actually makes a
3817 valid directory name. */
3818 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3819 && is_directory (value
, false))
3821 char *tmp
= XNEWVEC (char, len
+ 2);
3822 strcpy (tmp
, value
);
3823 tmp
[len
] = DIR_SEPARATOR
;
3828 add_prefix (&exec_prefixes
, value
, NULL
,
3829 PREFIX_PRIORITY_B_OPT
, 0, 0);
3830 add_prefix (&startfile_prefixes
, value
, NULL
,
3831 PREFIX_PRIORITY_B_OPT
, 0, 0);
3832 add_prefix (&include_prefixes
, value
, NULL
,
3833 PREFIX_PRIORITY_B_OPT
, 0, 0);
3838 case 'v': /* Print our subcommands and print versions. */
3840 /* If they do anything other than exactly `-v', don't set
3841 verbose_flag; rather, continue on to give the error. */
3859 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3864 /* Forward scan, just in case -S or -c is specified
3871 if (argv
[j
][0] == '-')
3873 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3879 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3880 j
+= skip
- (argv
[j
][2] != 0);
3881 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3888 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3890 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3892 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3899 #ifdef MODIFY_TARGET_NAME
3900 is_modify_target_name
= 0;
3902 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3903 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3905 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3906 + strlen (spec_machine
));
3909 int made_addition
= 0;
3911 is_modify_target_name
= 1;
3912 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3914 if (modify_target
[j
].add_del
== DELETE
3915 && (! strncmp (q
, modify_target
[j
].str
,
3916 strlen (modify_target
[j
].str
))))
3917 p
+= strlen (modify_target
[j
].str
);
3918 else if (modify_target
[j
].add_del
== ADD
3919 && ! made_addition
&& *p
== '-')
3921 for (r
= modify_target
[j
].str
; *r
!= 0; )
3929 spec_machine
= new_name
;
3932 if (is_modify_target_name
)
3938 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3939 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3940 else if (WORD_SWITCH_TAKES_ARG (p
))
3941 i
+= WORD_SWITCH_TAKES_ARG (p
);
3951 if (save_temps_flag
&& use_pipes
)
3953 /* -save-temps overrides -pipe, so that temp files are produced */
3954 if (save_temps_flag
)
3955 error ("warning: -pipe ignored because -save-temps specified");
3959 /* Set up the search paths. We add directories that we expect to
3960 contain GNU Toolchain components before directories specified by
3961 the machine description so that we will find GNU components (like
3962 the GNU assembler) before those of the host system. */
3964 /* If we don't know where the toolchain has been installed, use the
3965 configured-in locations. */
3966 if (!gcc_exec_prefix
)
3969 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3970 PREFIX_PRIORITY_LAST
, 1, 0);
3971 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3972 PREFIX_PRIORITY_LAST
, 2, 0);
3973 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3974 PREFIX_PRIORITY_LAST
, 2, 0);
3976 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3977 PREFIX_PRIORITY_LAST
, 1, 0);
3980 /* If not cross-compiling, search well-known system locations. */
3981 if (*cross_compile
== '0')
3984 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3985 PREFIX_PRIORITY_LAST
, 2, 0);
3986 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3987 PREFIX_PRIORITY_LAST
, 2, 0);
3989 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3990 PREFIX_PRIORITY_LAST
, 1, 0);
3993 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3994 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3995 dir_separator_str
, NULL
);
3997 /* Look for tools relative to the location from which the driver is
3998 running, or, if that is not available, the configured prefix. */
4000 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4001 spec_machine
, dir_separator_str
,
4002 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4004 add_prefix (&exec_prefixes
,
4005 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4006 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4007 add_prefix (&startfile_prefixes
,
4008 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4009 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4011 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4012 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4013 then consider it to relocate with the rest of the GCC installation
4014 if GCC_EXEC_PREFIX is set.
4015 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4016 if (target_system_root
&& gcc_exec_prefix
)
4018 char *tmp_prefix
= make_relative_prefix (argv
[0],
4019 standard_bindir_prefix
,
4020 target_system_root
);
4021 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4023 target_system_root
= tmp_prefix
;
4024 target_system_root_changed
= 1;
4029 /* More prefixes are enabled in main, after we read the specs file
4030 and determine whether this is cross-compilation or not. */
4032 /* Then create the space for the vectors and scan again. */
4034 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4035 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4038 last_language_n_infiles
= -1;
4040 /* This, time, copy the text of each switch and store a pointer
4041 to the copy in the vector of switches.
4042 Store all the infiles in their vector. */
4044 for (i
= 1; i
< argc
; i
++)
4046 /* Just skip the switches that were handled by the preceding loop. */
4047 #ifdef MODIFY_TARGET_NAME
4048 is_modify_target_name
= 0;
4050 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4051 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4052 is_modify_target_name
= 1;
4054 if (is_modify_target_name
)
4058 if (! strncmp (argv
[i
], "-Wa,", 4))
4060 else if (! strncmp (argv
[i
], "-Wp,", 4))
4062 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4064 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4066 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4068 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4070 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4072 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4074 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4076 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4078 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4080 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4082 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4083 target_system_root_changed
= 1;
4085 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4087 /* Compensate for the +e options to the C++ front-end;
4088 they're there simply for cfront call-compatibility. We do
4089 some magic in default_compilers to pass them down properly.
4090 Note we deliberately start at the `+' here, to avoid passing
4091 -e0 or -e1 down into the linker. */
4092 switches
[n_switches
].part1
= &argv
[i
][0];
4093 switches
[n_switches
].args
= 0;
4094 switches
[n_switches
].live_cond
= SWITCH_OK
;
4095 switches
[n_switches
].validated
= 0;
4098 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4101 /* Split the argument at commas. */
4103 for (j
= 4; argv
[i
][j
]; j
++)
4104 if (argv
[i
][j
] == ',')
4106 infiles
[n_infiles
].language
= "*";
4107 infiles
[n_infiles
++].name
4108 = save_string (argv
[i
] + prev
, j
- prev
);
4111 /* Record the part after the last comma. */
4112 infiles
[n_infiles
].language
= "*";
4113 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4115 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4117 infiles
[n_infiles
].language
= "*";
4118 infiles
[n_infiles
++].name
= argv
[++i
];
4120 /* Xassembler and Xpreprocessor were already handled in the first argv
4121 scan, so all we need to do here is ignore them and their argument. */
4122 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4124 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4126 else if (strcmp (argv
[i
], "-l") == 0)
4127 { /* POSIX allows separation of -l and the lib arg;
4128 canonicalize by concatenating -l with its arg */
4129 infiles
[n_infiles
].language
= "*";
4130 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4132 else if (strncmp (argv
[i
], "-l", 2) == 0)
4134 infiles
[n_infiles
].language
= "*";
4135 infiles
[n_infiles
++].name
= argv
[i
];
4137 else if (strcmp (argv
[i
], "-specs") == 0)
4139 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4141 else if (strcmp (argv
[i
], "-time") == 0)
4143 else if (strcmp (argv
[i
], "-###") == 0)
4145 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4147 const char *p
= &argv
[i
][1];
4152 if (p
[1] == 0 && i
+ 1 == argc
)
4153 fatal ("argument to '-x' is missing");
4155 spec_lang
= argv
[++i
];
4158 if (! strcmp (spec_lang
, "none"))
4159 /* Suppress the warning if -xnone comes after the last input
4160 file, because alternate command interfaces like g++ might
4161 find it useful to place -xnone after each input file. */
4164 last_language_n_infiles
= n_infiles
;
4167 switches
[n_switches
].part1
= p
;
4168 /* Deal with option arguments in separate argv elements. */
4169 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4170 || WORD_SWITCH_TAKES_ARG (p
))
4173 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4177 /* Count only the option arguments in separate argv elements. */
4178 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4180 if (i
+ n_args
>= argc
)
4181 fatal ("argument to '-%s' is missing", p
);
4182 switches
[n_switches
].args
4183 = XNEWVEC (const char *, n_args
+ 1);
4185 switches
[n_switches
].args
[j
++] = argv
[++i
];
4186 /* Null-terminate the vector. */
4187 switches
[n_switches
].args
[j
] = 0;
4189 else if (strchr (switches_need_spaces
, c
))
4191 /* On some systems, ld cannot handle some options without
4192 a space. So split the option from its argument. */
4193 char *part1
= XNEWVEC (char, 2);
4197 switches
[n_switches
].part1
= part1
;
4198 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4199 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4200 switches
[n_switches
].args
[1] = 0;
4203 switches
[n_switches
].args
= 0;
4205 switches
[n_switches
].live_cond
= SWITCH_OK
;
4206 switches
[n_switches
].validated
= 0;
4207 switches
[n_switches
].ordering
= 0;
4208 /* These are always valid, since gcc.c itself understands them. */
4209 if (!strcmp (p
, "save-temps")
4210 || !strcmp (p
, "static-libgcc")
4211 || !strcmp (p
, "shared-libgcc")
4212 || !strcmp (p
, "pipe"))
4213 switches
[n_switches
].validated
= 1;
4216 char ch
= switches
[n_switches
].part1
[0];
4218 switches
[n_switches
].validated
= 1;
4224 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4225 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4228 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4230 perror_with_name (argv
[i
]);
4235 infiles
[n_infiles
].language
= spec_lang
;
4236 infiles
[n_infiles
++].name
= argv
[i
];
4241 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4242 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4244 /* Ensure we only invoke each subprocess once. */
4245 if (print_subprocess_help
|| print_help_list
)
4249 /* Create a dummy input file, so that we can pass
4250 the help option on to the various sub-processes. */
4251 infiles
[0].language
= "c";
4252 infiles
[0].name
= "help-dummy";
4255 switches
[n_switches
].part1
= 0;
4256 infiles
[n_infiles
].name
= 0;
4259 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4260 and place that in the environment. */
4263 set_collect_gcc_options (void)
4268 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4270 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4271 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4274 for (i
= 0; (int) i
< n_switches
; i
++)
4276 const char *const *args
;
4279 obstack_grow (&collect_obstack
, " ", 1);
4283 /* Ignore elided switches. */
4284 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4287 obstack_grow (&collect_obstack
, "'-", 2);
4288 q
= switches
[i
].part1
;
4289 while ((p
= strchr (q
, '\'')))
4291 obstack_grow (&collect_obstack
, q
, p
- q
);
4292 obstack_grow (&collect_obstack
, "'\\''", 4);
4295 obstack_grow (&collect_obstack
, q
, strlen (q
));
4296 obstack_grow (&collect_obstack
, "'", 1);
4298 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4300 obstack_grow (&collect_obstack
, " '", 2);
4302 while ((p
= strchr (q
, '\'')))
4304 obstack_grow (&collect_obstack
, q
, p
- q
);
4305 obstack_grow (&collect_obstack
, "'\\''", 4);
4308 obstack_grow (&collect_obstack
, q
, strlen (q
));
4309 obstack_grow (&collect_obstack
, "'", 1);
4312 obstack_grow (&collect_obstack
, "\0", 1);
4313 putenv (XOBFINISH (&collect_obstack
, char *));
4316 /* Process a spec string, accumulating and running commands. */
4318 /* These variables describe the input file name.
4319 input_file_number is the index on outfiles of this file,
4320 so that the output file name can be stored for later use by %o.
4321 input_basename is the start of the part of the input file
4322 sans all directory names, and basename_length is the number
4323 of characters starting there excluding the suffix .c or whatever. */
4325 static const char *input_filename
;
4326 static int input_file_number
;
4327 size_t input_filename_length
;
4328 static int basename_length
;
4329 static int suffixed_basename_length
;
4330 static const char *input_basename
;
4331 static const char *input_suffix
;
4332 #ifndef HOST_LACKS_INODE_NUMBERS
4333 static struct stat input_stat
;
4335 static int input_stat_set
;
4337 /* The compiler used to process the current input file. */
4338 static struct compiler
*input_file_compiler
;
4340 /* These are variables used within do_spec and do_spec_1. */
4342 /* Nonzero if an arg has been started and not yet terminated
4343 (with space, tab or newline). */
4344 static int arg_going
;
4346 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4347 is a temporary file name. */
4348 static int delete_this_arg
;
4350 /* Nonzero means %w has been seen; the next arg to be terminated
4351 is the output file name of this compilation. */
4352 static int this_is_output_file
;
4354 /* Nonzero means %s has been seen; the next arg to be terminated
4355 is the name of a library file and we should try the standard
4356 search dirs for it. */
4357 static int this_is_library_file
;
4359 /* Nonzero means that the input of this command is coming from a pipe. */
4360 static int input_from_pipe
;
4362 /* Nonnull means substitute this for any suffix when outputting a switches
4364 static const char *suffix_subst
;
4366 /* Process the spec SPEC and run the commands specified therein.
4367 Returns 0 if the spec is successfully processed; -1 if failed. */
4370 do_spec (const char *spec
)
4374 value
= do_spec_2 (spec
);
4376 /* Force out any unfinished command.
4377 If -pipe, this forces out the last command if it ended in `|'. */
4380 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4383 set_collect_gcc_options ();
4385 if (argbuf_index
> 0)
4393 do_spec_2 (const char *spec
)
4400 delete_this_arg
= 0;
4401 this_is_output_file
= 0;
4402 this_is_library_file
= 0;
4403 input_from_pipe
= 0;
4404 suffix_subst
= NULL
;
4406 result
= do_spec_1 (spec
, 0, NULL
);
4408 /* End any pending argument. */
4411 obstack_1grow (&obstack
, 0);
4412 string
= XOBFINISH (&obstack
, const char *);
4413 if (this_is_library_file
)
4414 string
= find_file (string
);
4415 store_arg (string
, delete_this_arg
, this_is_output_file
);
4416 if (this_is_output_file
)
4417 outfiles
[input_file_number
] = string
;
4425 /* Process the given spec string and add any new options to the end
4426 of the switches/n_switches array. */
4429 do_option_spec (const char *name
, const char *spec
)
4431 unsigned int i
, value_count
, value_len
;
4432 const char *p
, *q
, *value
;
4433 char *tmp_spec
, *tmp_spec_p
;
4435 if (configure_default_options
[0].name
== NULL
)
4438 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4439 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4441 if (i
== ARRAY_SIZE (configure_default_options
))
4444 value
= configure_default_options
[i
].value
;
4445 value_len
= strlen (value
);
4447 /* Compute the size of the final spec. */
4450 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4456 /* Replace each %(VALUE) by the specified value. */
4457 tmp_spec
= alloca (strlen (spec
) + 1
4458 + value_count
* (value_len
- strlen ("%(VALUE)")));
4459 tmp_spec_p
= tmp_spec
;
4461 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4463 memcpy (tmp_spec_p
, q
, p
- q
);
4464 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4465 memcpy (tmp_spec_p
, value
, value_len
);
4466 tmp_spec_p
+= value_len
;
4467 q
= p
+ strlen ("%(VALUE)");
4469 strcpy (tmp_spec_p
, q
);
4471 do_self_spec (tmp_spec
);
4474 /* Process the given spec string and add any new options to the end
4475 of the switches/n_switches array. */
4478 do_self_spec (const char *spec
)
4481 do_spec_1 (" ", 0, NULL
);
4483 if (argbuf_index
> 0)
4488 n_switches
+= argbuf_index
;
4489 switches
= xrealloc (switches
,
4490 sizeof (struct switchstr
) * (n_switches
+ 1));
4492 switches
[n_switches
] = switches
[first
];
4493 for (i
= 0; i
< argbuf_index
; i
++)
4495 struct switchstr
*sw
;
4497 /* Each switch should start with '-'. */
4498 if (argbuf
[i
][0] != '-')
4499 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4501 sw
= &switches
[i
+ first
];
4502 sw
->part1
= &argbuf
[i
][1];
4504 sw
->live_cond
= SWITCH_OK
;
4511 /* Callback for processing %D and %I specs. */
4513 struct spec_path_info
{
4518 bool separate_options
;
4522 spec_path (char *path
, void *data
)
4524 struct spec_path_info
*info
= data
;
4528 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4531 if (info
->append_len
!= 0)
4533 len
= strlen (path
);
4534 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4537 if (!is_directory (path
, true))
4540 do_spec_1 (info
->option
, 1, NULL
);
4541 if (info
->separate_options
)
4542 do_spec_1 (" ", 0, NULL
);
4544 if (info
->append_len
== 0)
4546 len
= strlen (path
);
4547 save
= path
[len
- 1];
4548 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4549 path
[len
- 1] = '\0';
4552 do_spec_1 (path
, 1, NULL
);
4553 do_spec_1 (" ", 0, NULL
);
4555 /* Must not damage the original path. */
4556 if (info
->append_len
== 0)
4557 path
[len
- 1] = save
;
4562 /* Process the sub-spec SPEC as a portion of a larger spec.
4563 This is like processing a whole spec except that we do
4564 not initialize at the beginning and we do not supply a
4565 newline by default at the end.
4566 INSWITCH nonzero means don't process %-sequences in SPEC;
4567 in this case, % is treated as an ordinary character.
4568 This is used while substituting switches.
4569 INSWITCH nonzero also causes SPC not to terminate an argument.
4571 Value is zero unless a line was finished
4572 and the command on that line reported an error. */
4575 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4577 const char *p
= spec
;
4584 /* If substituting a switch, treat all chars like letters.
4585 Otherwise, NL, SPC, TAB and % are special. */
4586 switch (inswitch
? 'a' : c
)
4589 /* End of line: finish any pending argument,
4590 then run the pending command if one has been started. */
4593 obstack_1grow (&obstack
, 0);
4594 string
= XOBFINISH (&obstack
, const char *);
4595 if (this_is_library_file
)
4596 string
= find_file (string
);
4597 store_arg (string
, delete_this_arg
, this_is_output_file
);
4598 if (this_is_output_file
)
4599 outfiles
[input_file_number
] = string
;
4603 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4605 /* A `|' before the newline means use a pipe here,
4606 but only if -pipe was specified.
4607 Otherwise, execute now and don't pass the `|' as an arg. */
4610 input_from_pipe
= 1;
4617 set_collect_gcc_options ();
4619 if (argbuf_index
> 0)
4625 /* Reinitialize for a new command, and for a new argument. */
4628 delete_this_arg
= 0;
4629 this_is_output_file
= 0;
4630 this_is_library_file
= 0;
4631 input_from_pipe
= 0;
4635 /* End any pending argument. */
4638 obstack_1grow (&obstack
, 0);
4639 string
= XOBFINISH (&obstack
, const char *);
4640 if (this_is_library_file
)
4641 string
= find_file (string
);
4642 store_arg (string
, delete_this_arg
, this_is_output_file
);
4643 if (this_is_output_file
)
4644 outfiles
[input_file_number
] = string
;
4648 obstack_1grow (&obstack
, c
);
4654 /* Space or tab ends an argument if one is pending. */
4657 obstack_1grow (&obstack
, 0);
4658 string
= XOBFINISH (&obstack
, const char *);
4659 if (this_is_library_file
)
4660 string
= find_file (string
);
4661 store_arg (string
, delete_this_arg
, this_is_output_file
);
4662 if (this_is_output_file
)
4663 outfiles
[input_file_number
] = string
;
4665 /* Reinitialize for a new argument. */
4667 delete_this_arg
= 0;
4668 this_is_output_file
= 0;
4669 this_is_library_file
= 0;
4676 fatal ("spec '%s' invalid", spec
);
4679 obstack_grow (&obstack
, input_basename
, basename_length
);
4684 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4689 delete_this_arg
= 2;
4692 /* Dump out the directories specified with LIBRARY_PATH,
4693 followed by the absolute directories
4694 that we search for startfiles. */
4697 struct spec_path_info info
;
4700 info
.append_len
= 0;
4701 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4702 /* Used on systems which record the specified -L dirs
4703 and use them to search for dynamic linking.
4704 Relative directories always come from -B,
4705 and it is better not to use them for searching
4706 at run time. In particular, stage1 loses. */
4707 info
.omit_relative
= true;
4709 info
.omit_relative
= false;
4711 info
.separate_options
= false;
4713 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4718 /* %efoo means report an error with `foo' as error message
4719 and don't execute any more commands for this file. */
4723 while (*p
!= 0 && *p
!= '\n')
4725 buf
= alloca (p
- q
+ 1);
4726 strncpy (buf
, q
, p
- q
);
4733 /* %nfoo means report a notice with `foo' on stderr. */
4737 while (*p
!= 0 && *p
!= '\n')
4739 buf
= alloca (p
- q
+ 1);
4740 strncpy (buf
, q
, p
- q
);
4742 notice ("%s\n", buf
);
4752 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4753 defined, and it is not a directory, and it is
4754 writable, use it. Otherwise, treat this like any
4755 other temporary file. */
4757 if ((!save_temps_flag
)
4758 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4759 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4761 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4762 strlen (HOST_BIT_BUCKET
));
4763 delete_this_arg
= 0;
4768 goto create_temp_file
;
4772 obstack_1grow (&obstack
, '-');
4773 delete_this_arg
= 0;
4776 /* consume suffix */
4777 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4779 if (p
[0] == '%' && p
[1] == 'O')
4784 goto create_temp_file
;
4788 /* consume suffix */
4789 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4791 if (p
[0] == '%' && p
[1] == 'O')
4796 goto create_temp_file
;
4802 struct temp_name
*t
;
4804 const char *suffix
= p
;
4805 char *saved_suffix
= NULL
;
4807 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4809 suffix_length
= p
- suffix
;
4810 if (p
[0] == '%' && p
[1] == 'O')
4813 /* We don't support extra suffix characters after %O. */
4814 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4815 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4816 if (suffix_length
== 0)
4817 suffix
= TARGET_OBJECT_SUFFIX
;
4821 = XNEWVEC (char, suffix_length
4822 + strlen (TARGET_OBJECT_SUFFIX
));
4823 strncpy (saved_suffix
, suffix
, suffix_length
);
4824 strcpy (saved_suffix
+ suffix_length
,
4825 TARGET_OBJECT_SUFFIX
);
4827 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4830 /* If the input_filename has the same suffix specified
4831 for the %g, %u, or %U, and -save-temps is specified,
4832 we could end up using that file as an intermediate
4833 thus clobbering the user's source file (.e.g.,
4834 gcc -save-temps foo.s would clobber foo.s with the
4835 output of cpp0). So check for this condition and
4836 generate a temp file as the intermediate. */
4838 if (save_temps_flag
)
4840 temp_filename_length
= basename_length
+ suffix_length
;
4841 temp_filename
= alloca (temp_filename_length
+ 1);
4842 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4843 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4845 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4846 if (strcmp (temp_filename
, input_filename
) != 0)
4848 #ifndef HOST_LACKS_INODE_NUMBERS
4849 struct stat st_temp
;
4851 /* Note, set_input() resets input_stat_set to 0. */
4852 if (input_stat_set
== 0)
4854 input_stat_set
= stat (input_filename
, &input_stat
);
4855 if (input_stat_set
>= 0)
4859 /* If we have the stat for the input_filename
4860 and we can do the stat for the temp_filename
4861 then the they could still refer to the same
4862 file if st_dev/st_ino's are the same. */
4863 if (input_stat_set
!= 1
4864 || stat (temp_filename
, &st_temp
) < 0
4865 || input_stat
.st_dev
!= st_temp
.st_dev
4866 || input_stat
.st_ino
!= st_temp
.st_ino
)
4868 /* Just compare canonical pathnames. */
4869 char* input_realname
= lrealpath (input_filename
);
4870 char* temp_realname
= lrealpath (temp_filename
);
4871 bool files_differ
= strcmp (input_realname
, temp_realname
);
4872 free (input_realname
);
4873 free (temp_realname
);
4877 temp_filename
= save_string (temp_filename
,
4878 temp_filename_length
+ 1);
4879 obstack_grow (&obstack
, temp_filename
,
4880 temp_filename_length
);
4882 delete_this_arg
= 0;
4888 /* See if we already have an association of %g/%u/%U and
4890 for (t
= temp_names
; t
; t
= t
->next
)
4891 if (t
->length
== suffix_length
4892 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4893 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4896 /* Make a new association if needed. %u and %j
4898 if (t
== 0 || c
== 'u' || c
== 'j')
4902 t
= xmalloc (sizeof (struct temp_name
));
4903 t
->next
= temp_names
;
4906 t
->length
= suffix_length
;
4909 t
->suffix
= saved_suffix
;
4910 saved_suffix
= NULL
;
4913 t
->suffix
= save_string (suffix
, suffix_length
);
4914 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4915 temp_filename
= make_temp_file (t
->suffix
);
4916 temp_filename_length
= strlen (temp_filename
);
4917 t
->filename
= temp_filename
;
4918 t
->filename_length
= temp_filename_length
;
4922 free (saved_suffix
);
4924 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4925 delete_this_arg
= 1;
4933 for (i
= 0; (int) i
< n_infiles
; i
++)
4934 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4935 if (infiles
[i
].incompiler
== input_file_compiler
)
4937 store_arg (infiles
[i
].name
, 0, 0);
4938 infiles
[i
].compiled
= true;
4943 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4950 struct spec_path_info info
;
4954 do_spec_1 ("-imultilib", 1, NULL
);
4955 /* Make this a separate argument. */
4956 do_spec_1 (" ", 0, NULL
);
4957 do_spec_1 (multilib_dir
, 1, NULL
);
4958 do_spec_1 (" ", 0, NULL
);
4961 if (gcc_exec_prefix
)
4963 do_spec_1 ("-iprefix", 1, NULL
);
4964 /* Make this a separate argument. */
4965 do_spec_1 (" ", 0, NULL
);
4966 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4967 do_spec_1 (" ", 0, NULL
);
4970 if (target_system_root_changed
||
4971 (target_system_root
&& target_sysroot_hdrs_suffix
))
4973 do_spec_1 ("-isysroot", 1, NULL
);
4974 /* Make this a separate argument. */
4975 do_spec_1 (" ", 0, NULL
);
4976 do_spec_1 (target_system_root
, 1, NULL
);
4977 if (target_sysroot_hdrs_suffix
)
4978 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4979 do_spec_1 (" ", 0, NULL
);
4982 info
.option
= "-isystem";
4983 info
.append
= "include";
4984 info
.append_len
= strlen (info
.append
);
4985 info
.omit_relative
= false;
4986 info
.separate_options
= true;
4988 for_each_path (&include_prefixes
, false, info
.append_len
,
4991 info
.append
= "include-fixed";
4992 if (*sysroot_hdrs_suffix_spec
)
4993 info
.append
= concat (info
.append
, dir_separator_str
,
4994 multilib_dir
, NULL
);
4995 info
.append_len
= strlen (info
.append
);
4996 for_each_path (&include_prefixes
, false, info
.append_len
,
5003 int max
= n_infiles
;
5004 max
+= lang_specific_extra_outfiles
;
5006 for (i
= 0; i
< max
; i
++)
5008 store_arg (outfiles
[i
], 0, 0);
5013 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5018 this_is_library_file
= 1;
5022 outfiles
[input_file_number
] = NULL
;
5026 this_is_output_file
= 1;
5031 int cur_index
= argbuf_index
;
5032 /* Handle the {...} following the %W. */
5034 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5035 p
= handle_braces (p
+ 1);
5038 /* End any pending argument. */
5041 obstack_1grow (&obstack
, 0);
5042 string
= XOBFINISH (&obstack
, const char *);
5043 if (this_is_library_file
)
5044 string
= find_file (string
);
5045 store_arg (string
, delete_this_arg
, this_is_output_file
);
5046 if (this_is_output_file
)
5047 outfiles
[input_file_number
] = string
;
5050 /* If any args were output, mark the last one for deletion
5052 if (argbuf_index
!= cur_index
)
5053 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5057 /* %x{OPTION} records OPTION for %X to output. */
5063 /* Skip past the option value and make a copy. */
5065 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5068 string
= save_string (p1
+ 1, p
- p1
- 2);
5070 /* See if we already recorded this option. */
5071 for (i
= 0; i
< n_linker_options
; i
++)
5072 if (! strcmp (string
, linker_options
[i
]))
5078 /* This option is new; add it. */
5079 add_linker_option (string
, strlen (string
));
5083 /* Dump out the options accumulated previously using %x. */
5085 for (i
= 0; i
< n_linker_options
; i
++)
5087 do_spec_1 (linker_options
[i
], 1, NULL
);
5088 /* Make each accumulated option a separate argument. */
5089 do_spec_1 (" ", 0, NULL
);
5093 /* Dump out the options accumulated previously using -Wa,. */
5095 for (i
= 0; i
< n_assembler_options
; i
++)
5097 do_spec_1 (assembler_options
[i
], 1, NULL
);
5098 /* Make each accumulated option a separate argument. */
5099 do_spec_1 (" ", 0, NULL
);
5103 /* Dump out the options accumulated previously using -Wp,. */
5105 for (i
= 0; i
< n_preprocessor_options
; i
++)
5107 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5108 /* Make each accumulated option a separate argument. */
5109 do_spec_1 (" ", 0, NULL
);
5113 /* Here are digits and numbers that just process
5114 a certain constant string as a spec. */
5117 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5123 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5129 value
= do_spec_1 (asm_spec
, 0, NULL
);
5135 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5142 const char *const spec
5143 = (input_file_compiler
->cpp_spec
5144 ? input_file_compiler
->cpp_spec
5146 value
= do_spec_1 (spec
, 0, NULL
);
5153 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5159 value
= do_spec_1 (link_spec
, 0, NULL
);
5165 value
= do_spec_1 (lib_spec
, 0, NULL
);
5171 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5177 /* We assume there is a directory
5178 separator at the end of this string. */
5179 if (target_system_root
)
5181 obstack_grow (&obstack
, target_system_root
,
5182 strlen (target_system_root
));
5183 if (target_sysroot_suffix
)
5184 obstack_grow (&obstack
, target_sysroot_suffix
,
5185 strlen (target_sysroot_suffix
));
5190 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5195 /* Here we define characters other than letters and digits. */
5198 p
= handle_braces (p
);
5204 p
= handle_spec_function (p
);
5210 obstack_1grow (&obstack
, '%');
5217 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5219 suffix_subst
= save_string (p
- 1, len
+ 1);
5224 /* Henceforth ignore the option(s) matching the pattern
5229 int have_wildcard
= 0;
5232 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5235 if (p
[len
-1] == '*')
5238 for (i
= 0; i
< n_switches
; i
++)
5239 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5240 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5242 switches
[i
].live_cond
= SWITCH_IGNORE
;
5243 switches
[i
].validated
= 1;
5251 if (soft_matched_part
)
5253 do_spec_1 (soft_matched_part
, 1, NULL
);
5254 do_spec_1 (" ", 0, NULL
);
5257 /* Catch the case where a spec string contains something like
5258 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5259 hand side of the :. */
5260 error ("spec failure: '%%*' has not been initialized by pattern match");
5263 /* Process a string found as the value of a spec given by name.
5264 This feature allows individual machine descriptions
5265 to add and use their own specs.
5266 %[...] modifies -D options the way %P does;
5267 %(...) uses the spec unmodified. */
5269 error ("warning: use of obsolete %%[ operator in specs");
5272 const char *name
= p
;
5273 struct spec_list
*sl
;
5276 /* The string after the S/P is the name of a spec that is to be
5278 while (*p
&& *p
!= ')' && *p
!= ']')
5281 /* See if it's in the list. */
5282 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5283 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5285 name
= *(sl
->ptr_spec
);
5287 notice ("Processing spec %c%s%c, which is '%s'\n",
5288 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5297 value
= do_spec_1 (name
, 0, NULL
);
5303 char *x
= alloca (strlen (name
) * 2 + 1);
5305 const char *y
= name
;
5308 /* Copy all of NAME into BUF, but put __ after
5309 every -D and at the end of each arg. */
5312 if (! strncmp (y
, "-D", 2))
5323 && (*y
== ' ' || *y
== '\t' || *y
== '='
5324 || *y
== '}' || *y
== 0))
5337 value
= do_spec_1 (buf
, 0, NULL
);
5343 /* Discard the closing paren or bracket. */
5350 error ("spec failure: unrecognized spec option '%c'", c
);
5356 /* Backslash: treat next character as ordinary. */
5361 /* Ordinary character: put it into the current argument. */
5362 obstack_1grow (&obstack
, c
);
5366 /* End of string. If we are processing a spec function, we need to
5367 end any pending argument. */
5368 if (processing_spec_function
&& arg_going
)
5370 obstack_1grow (&obstack
, 0);
5371 string
= XOBFINISH (&obstack
, const char *);
5372 if (this_is_library_file
)
5373 string
= find_file (string
);
5374 store_arg (string
, delete_this_arg
, this_is_output_file
);
5375 if (this_is_output_file
)
5376 outfiles
[input_file_number
] = string
;
5383 /* Look up a spec function. */
5385 static const struct spec_function
*
5386 lookup_spec_function (const char *name
)
5388 const struct spec_function
*sf
;
5390 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5391 if (strcmp (sf
->name
, name
) == 0)
5397 /* Evaluate a spec function. */
5400 eval_spec_function (const char *func
, const char *args
)
5402 const struct spec_function
*sf
;
5403 const char *funcval
;
5405 /* Saved spec processing context. */
5406 int save_argbuf_index
;
5407 int save_argbuf_length
;
5408 const char **save_argbuf
;
5411 int save_delete_this_arg
;
5412 int save_this_is_output_file
;
5413 int save_this_is_library_file
;
5414 int save_input_from_pipe
;
5415 const char *save_suffix_subst
;
5418 sf
= lookup_spec_function (func
);
5420 fatal ("unknown spec function '%s'", func
);
5422 /* Push the spec processing context. */
5423 save_argbuf_index
= argbuf_index
;
5424 save_argbuf_length
= argbuf_length
;
5425 save_argbuf
= argbuf
;
5427 save_arg_going
= arg_going
;
5428 save_delete_this_arg
= delete_this_arg
;
5429 save_this_is_output_file
= this_is_output_file
;
5430 save_this_is_library_file
= this_is_library_file
;
5431 save_input_from_pipe
= input_from_pipe
;
5432 save_suffix_subst
= suffix_subst
;
5434 /* Create a new spec processing context, and build the function
5438 if (do_spec_2 (args
) < 0)
5439 fatal ("error in args to spec function '%s'", func
);
5441 /* argbuf_index is an index for the next argument to be inserted, and
5442 so contains the count of the args already inserted. */
5444 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5446 /* Pop the spec processing context. */
5447 argbuf_index
= save_argbuf_index
;
5448 argbuf_length
= save_argbuf_length
;
5450 argbuf
= save_argbuf
;
5452 arg_going
= save_arg_going
;
5453 delete_this_arg
= save_delete_this_arg
;
5454 this_is_output_file
= save_this_is_output_file
;
5455 this_is_library_file
= save_this_is_library_file
;
5456 input_from_pipe
= save_input_from_pipe
;
5457 suffix_subst
= save_suffix_subst
;
5462 /* Handle a spec function call of the form:
5466 ARGS is processed as a spec in a separate context and split into an
5467 argument vector in the normal fashion. The function returns a string
5468 containing a spec which we then process in the caller's context, or
5469 NULL if no processing is required. */
5472 handle_spec_function (const char *p
)
5475 const char *endp
, *funcval
;
5478 processing_spec_function
++;
5480 /* Get the function name. */
5481 for (endp
= p
; *endp
!= '\0'; endp
++)
5483 if (*endp
== '(') /* ) */
5485 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5486 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5487 fatal ("malformed spec function name");
5489 if (*endp
!= '(') /* ) */
5490 fatal ("no arguments for spec function");
5491 func
= save_string (p
, endp
- p
);
5494 /* Get the arguments. */
5495 for (count
= 0; *endp
!= '\0'; endp
++)
5504 else if (*endp
== '(') /* ) */
5509 fatal ("malformed spec function arguments");
5510 args
= save_string (p
, endp
- p
);
5513 /* p now points to just past the end of the spec function expression. */
5515 funcval
= eval_spec_function (func
, args
);
5516 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5522 processing_spec_function
--;
5527 /* Inline subroutine of handle_braces. Returns true if the current
5528 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5530 input_suffix_matches (const char *atom
, const char *end_atom
)
5532 /* We special case the semantics of {.s:...} and {.S:...} and their
5533 negative variants. Instead of testing the input filename suffix,
5534 we test whether the input source file is an assembler file or an
5535 assembler-with-cpp file respectively. This allows us to correctly
5536 handle the -x command line option. */
5538 if (atom
+ 1 == end_atom
5539 && input_file_compiler
5540 && input_file_compiler
->suffix
)
5543 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5545 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5548 return (input_suffix
5549 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5550 && input_suffix
[end_atom
- atom
] == '\0');
5553 /* Subroutine of handle_braces. Returns true if a switch
5554 matching the atom bracketed by ATOM and END_ATOM appeared on the
5557 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5560 int len
= end_atom
- atom
;
5561 int plen
= starred
? len
: -1;
5563 for (i
= 0; i
< n_switches
; i
++)
5564 if (!strncmp (switches
[i
].part1
, atom
, len
)
5565 && (starred
|| switches
[i
].part1
[len
] == '\0')
5566 && check_live_switch (i
, plen
))
5572 /* Inline subroutine of handle_braces. Mark all of the switches which
5573 match ATOM (extends to END_ATOM; STARRED indicates whether there
5574 was a star after the atom) for later processing. */
5576 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5579 int len
= end_atom
- atom
;
5580 int plen
= starred
? len
: -1;
5582 for (i
= 0; i
< n_switches
; i
++)
5583 if (!strncmp (switches
[i
].part1
, atom
, len
)
5584 && (starred
|| switches
[i
].part1
[len
] == '\0')
5585 && check_live_switch (i
, plen
))
5586 switches
[i
].ordering
= 1;
5589 /* Inline subroutine of handle_braces. Process all the currently
5590 marked switches through give_switch, and clear the marks. */
5592 process_marked_switches (void)
5596 for (i
= 0; i
< n_switches
; i
++)
5597 if (switches
[i
].ordering
== 1)
5599 switches
[i
].ordering
= 0;
5604 /* Handle a %{ ... } construct. P points just inside the leading {.
5605 Returns a pointer one past the end of the brace block, or 0
5606 if we call do_spec_1 and that returns -1. */
5609 handle_braces (const char *p
)
5611 const char *atom
, *end_atom
;
5612 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5613 const char *orig
= p
;
5620 bool a_must_be_last
= false;
5621 bool ordered_set
= false;
5622 bool disjunct_set
= false;
5623 bool disj_matched
= false;
5624 bool disj_starred
= true;
5625 bool n_way_choice
= false;
5626 bool n_way_matched
= false;
5628 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5635 /* Scan one "atom" (S in the description above of %{}, possibly
5636 with !, ., or * modifiers). */
5637 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5641 p
++, a_is_negated
= true;
5645 p
++, a_is_suffix
= true;
5648 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5649 || *p
== ',' || *p
== '.' || *p
== '@')
5654 p
++, a_is_starred
= 1;
5660 /* Substitute the switch(es) indicated by the current atom. */
5662 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5663 || atom
== end_atom
)
5666 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5669 process_marked_switches ();
5673 /* Substitute some text if the current atom appears as a switch
5675 disjunct_set
= true;
5679 if (atom
== end_atom
)
5681 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5682 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5685 /* An empty term may appear as the last choice of an
5686 N-way choice set; it means "otherwise". */
5687 a_must_be_last
= true;
5688 disj_matched
= !n_way_matched
;
5689 disj_starred
= false;
5693 if (a_is_suffix
&& a_is_starred
)
5697 disj_starred
= false;
5699 /* Don't bother testing this atom if we already have a
5701 if (!disj_matched
&& !n_way_matched
)
5704 a_matched
= input_suffix_matches (atom
, end_atom
);
5706 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5708 if (a_matched
!= a_is_negated
)
5710 disj_matched
= true;
5712 d_end_atom
= end_atom
;
5719 /* Found the body, that is, the text to substitute if the
5720 current disjunction matches. */
5721 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5722 disj_matched
&& !n_way_matched
);
5726 /* If we have an N-way choice, reset state for the next
5730 n_way_choice
= true;
5731 n_way_matched
|= disj_matched
;
5732 disj_matched
= false;
5733 disj_starred
= true;
5734 d_atom
= d_end_atom
= NULL
;
5743 while (*p
++ != '}');
5748 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5753 /* Subroutine of handle_braces. Scan and process a brace substitution body
5754 (X in the description of %{} syntax). P points one past the colon;
5755 ATOM and END_ATOM bracket the first atom which was found to be true
5756 (present) in the current disjunction; STARRED indicates whether all
5757 the atoms in the current disjunction were starred (for syntax validation);
5758 MATCHED indicates whether the disjunction matched or not, and therefore
5759 whether or not the body is to be processed through do_spec_1 or just
5760 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5764 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5765 int starred
, int matched
)
5767 const char *body
, *end_body
;
5768 unsigned int nesting_level
;
5769 bool have_subst
= false;
5771 /* Locate the closing } or ;, honoring nested braces.
5772 Trim trailing whitespace. */
5781 if (!--nesting_level
)
5784 else if (*p
== ';' && nesting_level
== 1)
5786 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5788 else if (*p
== '\0')
5794 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5797 if (have_subst
&& !starred
)
5802 /* Copy the substitution body to permanent storage and execute it.
5803 If have_subst is false, this is a simple matter of running the
5804 body through do_spec_1... */
5805 char *string
= save_string (body
, end_body
- body
);
5808 if (do_spec_1 (string
, 0, NULL
) < 0)
5813 /* ... but if have_subst is true, we have to process the
5814 body once for each matching switch, with %* set to the
5815 variant part of the switch. */
5816 unsigned int hard_match_len
= end_atom
- atom
;
5819 for (i
= 0; i
< n_switches
; i
++)
5820 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5821 && check_live_switch (i
, hard_match_len
))
5823 if (do_spec_1 (string
, 0,
5824 &switches
[i
].part1
[hard_match_len
]) < 0)
5826 /* Pass any arguments this switch has. */
5828 suffix_subst
= NULL
;
5836 fatal ("braced spec body '%s' is invalid", body
);
5839 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5840 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5841 spec, or -1 if either exact match or %* is used.
5843 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5844 whose value does not begin with "no-" is obsoleted by the same value
5845 with the "no-", similarly for a switch with the "no-" prefix. */
5848 check_live_switch (int switchnum
, int prefix_length
)
5850 const char *name
= switches
[switchnum
].part1
;
5853 /* In the common case of {<at-most-one-letter>*}, a negating
5854 switch would always match, so ignore that case. We will just
5855 send the conflicting switches to the compiler phase. */
5856 if (prefix_length
>= 0 && prefix_length
<= 1)
5859 /* If we already processed this switch and determined if it was
5860 live or not, return our past determination. */
5861 if (switches
[switchnum
].live_cond
!= 0)
5862 return switches
[switchnum
].live_cond
> 0;
5864 /* Now search for duplicate in a manner that depends on the name. */
5868 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5869 if (switches
[i
].part1
[0] == 'O')
5871 switches
[switchnum
].validated
= 1;
5872 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5877 case 'W': case 'f': case 'm':
5878 if (! strncmp (name
+ 1, "no-", 3))
5880 /* We have Xno-YYY, search for XYYY. */
5881 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5882 if (switches
[i
].part1
[0] == name
[0]
5883 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5885 switches
[switchnum
].validated
= 1;
5886 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5892 /* We have XYYY, search for Xno-YYY. */
5893 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5894 if (switches
[i
].part1
[0] == name
[0]
5895 && switches
[i
].part1
[1] == 'n'
5896 && switches
[i
].part1
[2] == 'o'
5897 && switches
[i
].part1
[3] == '-'
5898 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5900 switches
[switchnum
].validated
= 1;
5901 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5908 /* Otherwise the switch is live. */
5909 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5913 /* Pass a switch to the current accumulating command
5914 in the same form that we received it.
5915 SWITCHNUM identifies the switch; it is an index into
5916 the vector of switches gcc received, which is `switches'.
5917 This cannot fail since it never finishes a command line.
5919 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5922 give_switch (int switchnum
, int omit_first_word
)
5924 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5927 if (!omit_first_word
)
5929 do_spec_1 ("-", 0, NULL
);
5930 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5933 if (switches
[switchnum
].args
!= 0)
5936 for (p
= switches
[switchnum
].args
; *p
; p
++)
5938 const char *arg
= *p
;
5940 do_spec_1 (" ", 0, NULL
);
5943 unsigned length
= strlen (arg
);
5946 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5947 if (arg
[length
] == '.')
5949 ((char *)arg
)[length
] = 0;
5953 do_spec_1 (arg
, 1, NULL
);
5955 ((char *)arg
)[length
] = '.';
5956 do_spec_1 (suffix_subst
, 1, NULL
);
5959 do_spec_1 (arg
, 1, NULL
);
5963 do_spec_1 (" ", 0, NULL
);
5964 switches
[switchnum
].validated
= 1;
5967 /* Search for a file named NAME trying various prefixes including the
5968 user's -B prefix and some standard ones.
5969 Return the absolute file name found. If nothing is found, return NAME. */
5972 find_file (const char *name
)
5974 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5975 return newname
? newname
: name
;
5978 /* Determine whether a directory exists. If LINKER, return 0 for
5979 certain fixed names not needed by the linker. */
5982 is_directory (const char *path1
, bool linker
)
5989 /* Ensure the string ends with "/.". The resulting path will be a
5990 directory even if the given path is a symbolic link. */
5991 len1
= strlen (path1
);
5992 path
= alloca (3 + len1
);
5993 memcpy (path
, path1
, len1
);
5995 if (!IS_DIR_SEPARATOR (cp
[-1]))
5996 *cp
++ = DIR_SEPARATOR
;
6000 /* Exclude directories that the linker is known to search. */
6002 && IS_DIR_SEPARATOR (path
[0])
6004 && strncmp (path
+ 1, "lib", 3) == 0)
6006 && strncmp (path
+ 1, "usr", 3) == 0
6007 && IS_DIR_SEPARATOR (path
[4])
6008 && strncmp (path
+ 5, "lib", 3) == 0)))
6011 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6014 /* Set up the various global variables to indicate that we're processing
6015 the input file named FILENAME. */
6018 set_input (const char *filename
)
6022 input_filename
= filename
;
6023 input_filename_length
= strlen (input_filename
);
6025 input_basename
= input_filename
;
6026 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6027 /* Skip drive name so 'x:foo' is handled properly. */
6028 if (input_basename
[1] == ':')
6029 input_basename
+= 2;
6031 for (p
= input_basename
; *p
; p
++)
6032 if (IS_DIR_SEPARATOR (*p
))
6033 input_basename
= p
+ 1;
6035 /* Find a suffix starting with the last period,
6036 and set basename_length to exclude that suffix. */
6037 basename_length
= strlen (input_basename
);
6038 suffixed_basename_length
= basename_length
;
6039 p
= input_basename
+ basename_length
;
6040 while (p
!= input_basename
&& *p
!= '.')
6042 if (*p
== '.' && p
!= input_basename
)
6044 basename_length
= p
- input_basename
;
6045 input_suffix
= p
+ 1;
6050 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6051 we will need to do a stat on the input_filename. The
6052 INPUT_STAT_SET signals that the stat is needed. */
6056 /* On fatal signals, delete all the temporary files. */
6059 fatal_error (int signum
)
6061 signal (signum
, SIG_DFL
);
6062 delete_failure_queue ();
6063 delete_temp_files ();
6064 /* Get the same signal again, this time not handled,
6065 so its normal effect occurs. */
6066 kill (getpid (), signum
);
6069 extern int main (int, char **);
6072 main (int argc
, char **argv
)
6076 int linker_was_run
= 0;
6077 int lang_n_infiles
= 0;
6078 int num_linker_inputs
= 0;
6079 char *explicit_link_files
;
6082 struct user_specs
*uptr
;
6084 p
= argv
[0] + strlen (argv
[0]);
6085 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6089 xmalloc_set_program_name (programname
);
6091 expandargv (&argc
, &argv
);
6093 prune_options (&argc
, &argv
);
6095 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6096 /* Perform host dependent initialization when needed. */
6097 GCC_DRIVER_HOST_INITIALIZATION
;
6100 /* Unlock the stdio streams. */
6101 unlock_std_streams ();
6103 gcc_init_libintl ();
6105 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6106 signal (SIGINT
, fatal_error
);
6108 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6109 signal (SIGHUP
, fatal_error
);
6111 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6112 signal (SIGTERM
, fatal_error
);
6114 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6115 signal (SIGPIPE
, fatal_error
);
6118 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6119 receive the signal. A different setting is inheritable */
6120 signal (SIGCHLD
, SIG_DFL
);
6123 /* Allocate the argument vector. */
6126 obstack_init (&obstack
);
6128 /* Build multilib_select, et. al from the separate lines that make up each
6129 multilib selection. */
6131 const char *const *q
= multilib_raw
;
6134 obstack_init (&multilib_obstack
);
6135 while ((p
= *q
++) != (char *) 0)
6136 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6138 obstack_1grow (&multilib_obstack
, 0);
6139 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6141 q
= multilib_matches_raw
;
6142 while ((p
= *q
++) != (char *) 0)
6143 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6145 obstack_1grow (&multilib_obstack
, 0);
6146 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6148 q
= multilib_exclusions_raw
;
6149 while ((p
= *q
++) != (char *) 0)
6150 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6152 obstack_1grow (&multilib_obstack
, 0);
6153 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6156 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6159 obstack_1grow (&multilib_obstack
, ' ');
6160 obstack_grow (&multilib_obstack
,
6161 multilib_defaults_raw
[i
],
6162 strlen (multilib_defaults_raw
[i
]));
6166 obstack_1grow (&multilib_obstack
, 0);
6167 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6170 /* Set up to remember the pathname of gcc and any options
6171 needed for collect. We use argv[0] instead of programname because
6172 we need the complete pathname. */
6173 obstack_init (&collect_obstack
);
6174 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6175 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6176 putenv (XOBFINISH (&collect_obstack
, char *));
6178 #ifdef INIT_ENVIRONMENT
6179 /* Set up any other necessary machine specific environment variables. */
6180 putenv (INIT_ENVIRONMENT
);
6183 /* Make a table of what switches there are (switches, n_switches).
6184 Make a table of specified input files (infiles, n_infiles).
6185 Decode switches that are handled locally. */
6187 process_command (argc
, (const char **) argv
);
6189 /* Initialize the vector of specs to just the default.
6190 This means one element containing 0s, as a terminator. */
6192 compilers
= xmalloc (sizeof default_compilers
);
6193 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6194 n_compilers
= n_default_compilers
;
6196 /* Read specs from a file if there is one. */
6198 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6199 spec_version
, dir_separator_str
, NULL
);
6200 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6202 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6203 /* Read the specs file unless it is a default one. */
6204 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6205 read_specs (specs_file
, TRUE
);
6209 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6210 for any override of as, ld and libraries. */
6211 specs_file
= alloca (strlen (standard_exec_prefix
)
6212 + strlen (just_machine_suffix
) + sizeof ("specs"));
6214 strcpy (specs_file
, standard_exec_prefix
);
6215 strcat (specs_file
, just_machine_suffix
);
6216 strcat (specs_file
, "specs");
6217 if (access (specs_file
, R_OK
) == 0)
6218 read_specs (specs_file
, TRUE
);
6220 /* Process any configure-time defaults specified for the command line
6221 options, via OPTION_DEFAULT_SPECS. */
6222 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6223 do_option_spec (option_default_specs
[i
].name
,
6224 option_default_specs
[i
].spec
);
6226 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6227 of the command line. */
6229 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6230 do_self_spec (driver_self_specs
[i
]);
6232 /* If not cross-compiling, look for executables in the standard
6234 if (*cross_compile
== '0')
6236 if (*md_exec_prefix
)
6238 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6239 PREFIX_PRIORITY_LAST
, 0, 0);
6243 /* Process sysroot_suffix_spec. */
6244 if (*sysroot_suffix_spec
!= 0
6245 && do_spec_2 (sysroot_suffix_spec
) == 0)
6247 if (argbuf_index
> 1)
6248 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6249 else if (argbuf_index
== 1)
6250 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6253 #ifdef HAVE_LD_SYSROOT
6254 /* Pass the --sysroot option to the linker, if it supports that. If
6255 there is a sysroot_suffix_spec, it has already been processed by
6256 this point, so target_system_root really is the system root we
6258 if (target_system_root
)
6260 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6261 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6262 set_spec ("link", XOBFINISH (&obstack
, const char *));
6266 /* Process sysroot_hdrs_suffix_spec. */
6267 if (*sysroot_hdrs_suffix_spec
!= 0
6268 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6270 if (argbuf_index
> 1)
6271 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6272 else if (argbuf_index
== 1)
6273 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6276 /* Look for startfiles in the standard places. */
6277 if (*startfile_prefix_spec
!= 0
6278 && do_spec_2 (startfile_prefix_spec
) == 0
6279 && do_spec_1 (" ", 0, NULL
) == 0)
6282 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6283 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6284 PREFIX_PRIORITY_LAST
, 0, 1);
6286 /* We should eventually get rid of all these and stick to
6287 startfile_prefix_spec exclusively. */
6288 else if (*cross_compile
== '0' || target_system_root
)
6290 if (*md_startfile_prefix
)
6291 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6292 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6294 if (*md_startfile_prefix_1
)
6295 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6296 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6298 /* If standard_startfile_prefix is relative, base it on
6299 standard_exec_prefix. This lets us move the installed tree
6300 as a unit. If GCC_EXEC_PREFIX is defined, base
6301 standard_startfile_prefix on that as well.
6303 If the prefix is relative, only search it for native compilers;
6304 otherwise we will search a directory containing host libraries. */
6305 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6306 add_sysrooted_prefix (&startfile_prefixes
,
6307 standard_startfile_prefix
, "BINUTILS",
6308 PREFIX_PRIORITY_LAST
, 0, 1);
6309 else if (*cross_compile
== '0')
6311 add_prefix (&startfile_prefixes
,
6312 concat (gcc_exec_prefix
6313 ? gcc_exec_prefix
: standard_exec_prefix
,
6315 standard_startfile_prefix
, NULL
),
6316 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6319 /* Sysrooted prefixes are relocated because target_system_root is
6320 also relocated by gcc_exec_prefix. */
6321 if (*standard_startfile_prefix_1
)
6322 add_sysrooted_prefix (&startfile_prefixes
,
6323 standard_startfile_prefix_1
, "BINUTILS",
6324 PREFIX_PRIORITY_LAST
, 0, 1);
6325 if (*standard_startfile_prefix_2
)
6326 add_sysrooted_prefix (&startfile_prefixes
,
6327 standard_startfile_prefix_2
, "BINUTILS",
6328 PREFIX_PRIORITY_LAST
, 0, 1);
6331 /* Process any user specified specs in the order given on the command
6333 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6335 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6337 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6340 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6341 if (gcc_exec_prefix
)
6342 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6343 spec_version
, dir_separator_str
, NULL
);
6345 /* Now we have the specs.
6346 Set the `valid' bits for switches that match anything in any spec. */
6348 validate_all_switches ();
6350 /* Now that we have the switches and the specs, set
6351 the subdirectory based on the options. */
6352 set_multilib_dir ();
6354 /* Warn about any switches that no pass was interested in. */
6356 for (i
= 0; (int) i
< n_switches
; i
++)
6357 if (! switches
[i
].validated
)
6358 error ("unrecognized option '-%s'", switches
[i
].part1
);
6360 /* Obey some of the options. */
6362 if (print_search_dirs
)
6364 printf (_("install: %s%s\n"),
6365 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6366 gcc_exec_prefix
? "" : machine_suffix
);
6367 printf (_("programs: %s\n"),
6368 build_search_list (&exec_prefixes
, "", false, false));
6369 printf (_("libraries: %s\n"),
6370 build_search_list (&startfile_prefixes
, "", false, true));
6374 if (print_file_name
)
6376 printf ("%s\n", find_file (print_file_name
));
6380 if (print_prog_name
)
6382 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6383 printf ("%s\n", (newname
? newname
: print_prog_name
));
6387 if (print_multi_lib
)
6389 print_multilib_info ();
6393 if (print_multi_directory
)
6395 if (multilib_dir
== NULL
)
6398 printf ("%s\n", multilib_dir
);
6402 if (print_multi_os_directory
)
6404 if (multilib_os_dir
== NULL
)
6407 printf ("%s\n", multilib_os_dir
);
6411 if (print_sysroot_headers_suffix
)
6413 if (*sysroot_hdrs_suffix_spec
)
6415 printf("%s\n", target_sysroot_hdrs_suffix
);
6419 /* The error status indicates that only one set of fixed
6420 headers should be built. */
6421 fatal ("not configured with sysroot headers suffix");
6424 if (print_help_list
)
6430 printf (_("\nFor bug reporting instructions, please see:\n"));
6431 printf ("%s.\n", bug_report_url
);
6436 /* We do not exit here. Instead we have created a fake input file
6437 called 'help-dummy' which needs to be compiled, and we pass this
6438 on the various sub-processes, along with the --help switch. */
6446 notice ("Target: %s\n", spec_machine
);
6447 notice ("Configured with: %s\n", configuration_arguments
);
6449 #ifdef THREAD_MODEL_SPEC
6450 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6451 but there's no point in doing all this processing just to get
6452 thread_model back. */
6453 obstack_init (&obstack
);
6454 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6455 obstack_1grow (&obstack
, '\0');
6456 thrmod
= XOBFINISH (&obstack
, const char *);
6458 thrmod
= thread_model
;
6461 notice ("Thread model: %s\n", thrmod
);
6463 /* compiler_version is truncated at the first space when initialized
6464 from version string, so truncate version_string at the first space
6465 before comparing. */
6466 for (n
= 0; version_string
[n
]; n
++)
6467 if (version_string
[n
] == ' ')
6470 if (! strncmp (version_string
, compiler_version
, n
)
6471 && compiler_version
[n
] == 0)
6472 notice ("gcc version %s\n", version_string
);
6474 notice ("gcc driver version %s executing gcc version %s\n",
6475 version_string
, compiler_version
);
6481 if (n_infiles
== added_libraries
)
6482 fatal ("no input files");
6484 /* Make a place to record the compiler output file names
6485 that correspond to the input files. */
6488 i
+= lang_specific_extra_outfiles
;
6489 outfiles
= XCNEWVEC (const char *, i
);
6491 /* Record which files were specified explicitly as link input. */
6493 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6496 combine_inputs
= true;
6498 combine_inputs
= false;
6500 for (i
= 0; (int) i
< n_infiles
; i
++)
6502 const char *name
= infiles
[i
].name
;
6503 struct compiler
*compiler
= lookup_compiler (name
,
6505 infiles
[i
].language
);
6507 if (compiler
&& !(compiler
->combinable
))
6508 combine_inputs
= false;
6510 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6511 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6512 infiles
[i
].incompiler
= compiler
;
6516 input_file_compiler
= compiler
;
6517 infiles
[i
].incompiler
= compiler
;
6521 /* Since there is no compiler for this input file, assume it is a
6523 explicit_link_files
[i
] = 1;
6524 infiles
[i
].incompiler
= NULL
;
6526 infiles
[i
].compiled
= false;
6527 infiles
[i
].preprocessed
= false;
6530 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6531 fatal ("cannot specify -o with -c or -S with multiple files");
6533 if (combine_flag
&& save_temps_flag
)
6535 bool save_combine_inputs
= combine_inputs
;
6536 /* Must do a separate pre-processing pass for C & Objective-C files, to
6537 obtain individual .i files. */
6539 combine_inputs
= false;
6540 for (i
= 0; (int) i
< n_infiles
; i
++)
6542 int this_file_error
= 0;
6544 input_file_number
= i
;
6545 set_input (infiles
[i
].name
);
6546 if (infiles
[i
].incompiler
6547 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6548 input_file_compiler
= infiles
[i
].incompiler
;
6552 if (input_file_compiler
)
6554 if (input_file_compiler
->spec
[0] == '#')
6556 error ("%s: %s compiler not installed on this system",
6557 input_filename
, &input_file_compiler
->spec
[1]);
6558 this_file_error
= 1;
6562 value
= do_spec (input_file_compiler
->spec
);
6563 infiles
[i
].preprocessed
= true;
6564 if (!have_o_argbuf_index
)
6565 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6566 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6567 infiles
[i
].incompiler
6568 = lookup_compiler (infiles
[i
].name
,
6569 strlen (infiles
[i
].name
),
6570 infiles
[i
].language
);
6573 this_file_error
= 1;
6577 if (this_file_error
)
6579 delete_failure_queue ();
6583 clear_failure_queue ();
6585 combine_inputs
= save_combine_inputs
;
6588 for (i
= 0; (int) i
< n_infiles
; i
++)
6590 int this_file_error
= 0;
6592 /* Tell do_spec what to substitute for %i. */
6594 input_file_number
= i
;
6595 set_input (infiles
[i
].name
);
6597 if (infiles
[i
].compiled
)
6600 /* Use the same thing in %o, unless cp->spec says otherwise. */
6602 outfiles
[i
] = input_filename
;
6604 /* Figure out which compiler from the file's suffix. */
6606 if (! combine_inputs
)
6608 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6609 infiles
[i
].language
);
6611 input_file_compiler
= infiles
[i
].incompiler
;
6613 if (input_file_compiler
)
6615 /* Ok, we found an applicable compiler. Run its spec. */
6617 if (input_file_compiler
->spec
[0] == '#')
6619 error ("%s: %s compiler not installed on this system",
6620 input_filename
, &input_file_compiler
->spec
[1]);
6621 this_file_error
= 1;
6625 value
= do_spec (input_file_compiler
->spec
);
6626 infiles
[i
].compiled
= true;
6628 this_file_error
= 1;
6632 /* If this file's name does not contain a recognized suffix,
6633 record it as explicit linker input. */
6636 explicit_link_files
[i
] = 1;
6638 /* Clear the delete-on-failure queue, deleting the files in it
6639 if this compilation failed. */
6641 if (this_file_error
)
6643 delete_failure_queue ();
6646 /* If this compilation succeeded, don't delete those files later. */
6647 clear_failure_queue ();
6650 /* Reset the input file name to the first compile/object file name, for use
6651 with %b in LINK_SPEC. We use the first input file that we can find
6652 a compiler to compile it instead of using infiles.language since for
6653 languages other than C we use aliases that we then lookup later. */
6658 for (i
= 0; i
< n_infiles
; i
++)
6659 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6661 set_input (infiles
[i
].name
);
6666 if (error_count
== 0)
6668 /* Make sure INPUT_FILE_NUMBER points to first available open
6670 input_file_number
= n_infiles
;
6671 if (lang_specific_pre_link ())
6675 /* Determine if there are any linker input files. */
6676 num_linker_inputs
= 0;
6677 for (i
= 0; (int) i
< n_infiles
; i
++)
6678 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6679 num_linker_inputs
++;
6681 /* Run ld to link all the compiler output files. */
6683 if (num_linker_inputs
> 0 && error_count
== 0)
6685 int tmp
= execution_count
;
6687 /* We'll use ld if we can't find collect2. */
6688 if (! strcmp (linker_name_spec
, "collect2"))
6690 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6692 linker_name_spec
= "ld";
6694 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6696 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6697 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6699 value
= do_spec (link_command_spec
);
6702 linker_was_run
= (tmp
!= execution_count
);
6705 /* If options said don't run linker,
6706 complain about input files to be given to the linker. */
6708 if (! linker_was_run
&& error_count
== 0)
6709 for (i
= 0; (int) i
< n_infiles
; i
++)
6710 if (explicit_link_files
[i
])
6711 error ("%s: linker input file unused because linking not done",
6714 /* Delete some or all of the temporary files we made. */
6717 delete_failure_queue ();
6718 delete_temp_files ();
6720 if (print_help_list
)
6722 printf (("\nFor bug reporting instructions, please see:\n"));
6723 printf ("%s\n", bug_report_url
);
6726 return (signal_count
!= 0 ? 2
6727 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6731 /* Find the proper compilation spec for the file name NAME,
6732 whose length is LENGTH. LANGUAGE is the specified language,
6733 or 0 if this file is to be passed to the linker. */
6735 static struct compiler
*
6736 lookup_compiler (const char *name
, size_t length
, const char *language
)
6738 struct compiler
*cp
;
6740 /* If this was specified by the user to be a linker input, indicate that. */
6741 if (language
!= 0 && language
[0] == '*')
6744 /* Otherwise, look for the language, if one is spec'd. */
6747 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6748 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6751 error ("language %s not recognized", language
);
6755 /* Look for a suffix. */
6756 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6758 if (/* The suffix `-' matches only the file name `-'. */
6759 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6760 || (strlen (cp
->suffix
) < length
6761 /* See if the suffix matches the end of NAME. */
6762 && !strcmp (cp
->suffix
,
6763 name
+ length
- strlen (cp
->suffix
))
6768 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6769 /* Look again, but case-insensitively this time. */
6771 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6773 if (/* The suffix `-' matches only the file name `-'. */
6774 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6775 || (strlen (cp
->suffix
) < length
6776 /* See if the suffix matches the end of NAME. */
6777 && ((!strcmp (cp
->suffix
,
6778 name
+ length
- strlen (cp
->suffix
))
6779 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6780 && !strcasecmp (cp
->suffix
,
6781 name
+ length
- strlen (cp
->suffix
)))
6787 if (cp
>= compilers
)
6789 if (cp
->spec
[0] != '@')
6790 /* A non-alias entry: return it. */
6793 /* An alias entry maps a suffix to a language.
6794 Search for the language; pass 0 for NAME and LENGTH
6795 to avoid infinite recursion if language not found. */
6796 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6802 save_string (const char *s
, int len
)
6804 char *result
= XNEWVEC (char, len
+ 1);
6806 memcpy (result
, s
, len
);
6812 pfatal_with_name (const char *name
)
6814 perror_with_name (name
);
6815 delete_temp_files ();
6820 perror_with_name (const char *name
)
6822 error ("%s: %s", name
, xstrerror (errno
));
6825 /* Output an error message and exit. */
6828 fancy_abort (const char *file
, int line
, const char *func
)
6830 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6833 /* Output an error message and exit. */
6836 fatal_ice (const char *cmsgid
, ...)
6840 va_start (ap
, cmsgid
);
6842 fprintf (stderr
, "%s: ", programname
);
6843 vfprintf (stderr
, _(cmsgid
), ap
);
6845 fprintf (stderr
, "\n");
6846 delete_temp_files ();
6847 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
6851 fatal (const char *cmsgid
, ...)
6855 va_start (ap
, cmsgid
);
6857 fprintf (stderr
, "%s: ", programname
);
6858 vfprintf (stderr
, _(cmsgid
), ap
);
6860 fprintf (stderr
, "\n");
6861 delete_temp_files ();
6865 /* The argument is actually c-format, not gcc-internal-format,
6866 but because functions with identical names are used through
6867 the rest of the compiler with gcc-internal-format, we just
6868 need to hope all users of these functions use the common
6869 subset between c-format and gcc-internal-format. */
6872 error (const char *gmsgid
, ...)
6876 va_start (ap
, gmsgid
);
6877 fprintf (stderr
, "%s: ", programname
);
6878 vfprintf (stderr
, _(gmsgid
), ap
);
6881 fprintf (stderr
, "\n");
6885 notice (const char *cmsgid
, ...)
6889 va_start (ap
, cmsgid
);
6890 vfprintf (stderr
, _(cmsgid
), ap
);
6895 validate_switches_from_spec (const char *spec
)
6897 const char *p
= spec
;
6900 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6901 /* We have a switch spec. */
6902 p
= validate_switches (p
+ 1);
6906 validate_all_switches (void)
6908 struct compiler
*comp
;
6909 struct spec_list
*spec
;
6911 for (comp
= compilers
; comp
->spec
; comp
++)
6912 validate_switches_from_spec (comp
->spec
);
6914 /* Look through the linked list of specs read from the specs file. */
6915 for (spec
= specs
; spec
; spec
= spec
->next
)
6916 validate_switches_from_spec (*spec
->ptr_spec
);
6918 validate_switches_from_spec (link_command_spec
);
6921 /* Look at the switch-name that comes after START
6922 and mark as valid all supplied switches that match it. */
6925 validate_switches (const char *start
)
6927 const char *p
= start
;
6931 bool suffix
= false;
6932 bool starred
= false;
6934 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6947 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6948 || *p
== ',' || *p
== '.' || *p
== '@')
6953 starred
= true, p
++;
6959 /* Mark all matching switches as valid. */
6960 for (i
= 0; i
< n_switches
; i
++)
6961 if (!strncmp (switches
[i
].part1
, atom
, len
)
6962 && (starred
|| switches
[i
].part1
[len
] == 0))
6963 switches
[i
].validated
= 1;
6967 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6970 if (*p
&& p
[-1] == ':')
6972 while (*p
&& *p
!= ';' && *p
!= '}')
6977 if (*p
== '{' || *p
== '<')
6978 p
= validate_switches (p
+1);
6979 else if (p
[0] == 'W' && p
[1] == '{')
6980 p
= validate_switches (p
+2);
6987 if (*p
&& p
[-1] == ';')
7001 static struct mdswitchstr
*mdswitches
;
7002 static int n_mdswitches
;
7004 /* Check whether a particular argument was used. The first time we
7005 canonicalize the switches to keep only the ones we care about. */
7008 used_arg (const char *p
, int len
)
7013 const char *replace
;
7018 static struct mswitchstr
*mswitches
;
7019 static int n_mswitches
;
7024 struct mswitchstr
*matches
;
7028 /* Break multilib_matches into the component strings of string
7029 and replacement string. */
7030 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7034 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
7036 q
= multilib_matches
;
7045 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7049 matches
[i
].len
= q
- matches
[i
].str
;
7051 matches
[i
].replace
= ++q
;
7052 while (*q
!= ';' && *q
!= '\0')
7055 goto invalid_matches
;
7058 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7064 /* Now build a list of the replacement string for switches that we care
7065 about. Make sure we allocate at least one entry. This prevents
7066 xmalloc from calling fatal, and prevents us from re-executing this
7069 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7070 for (i
= 0; i
< n_switches
; i
++)
7071 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
7073 int xlen
= strlen (switches
[i
].part1
);
7074 for (j
= 0; j
< cnt
; j
++)
7075 if (xlen
== matches
[j
].len
7076 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7078 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7079 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7080 mswitches
[n_mswitches
].replace
= (char *) 0;
7081 mswitches
[n_mswitches
].rep_len
= 0;
7087 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7088 on the command line nor any options mutually incompatible with
7090 for (i
= 0; i
< n_mdswitches
; i
++)
7094 for (q
= multilib_options
; *q
!= '\0'; q
++)
7100 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7101 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7103 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7110 if (*q
!= ' ' && *q
!= '\0')
7112 while (*r
!= ' ' && *r
!= '\0')
7115 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7118 if (used_arg (r
, q
- r
))
7123 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7124 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7125 mswitches
[n_mswitches
].replace
= (char *) 0;
7126 mswitches
[n_mswitches
].rep_len
= 0;
7139 for (i
= 0; i
< n_mswitches
; i
++)
7140 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7147 default_arg (const char *p
, int len
)
7151 for (i
= 0; i
< n_mdswitches
; i
++)
7152 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7158 /* Work out the subdirectory to use based on the options. The format of
7159 multilib_select is a list of elements. Each element is a subdirectory
7160 name followed by a list of options followed by a semicolon. The format
7161 of multilib_exclusions is the same, but without the preceding
7162 directory. First gcc will check the exclusions, if none of the options
7163 beginning with an exclamation point are present, and all of the other
7164 options are present, then we will ignore this completely. Passing
7165 that, gcc will consider each multilib_select in turn using the same
7166 rules for matching the options. If a match is found, that subdirectory
7170 set_multilib_dir (void)
7173 unsigned int this_path_len
;
7174 const char *this_path
, *this_arg
;
7175 const char *start
, *end
;
7177 int ok
, ndfltok
, first
;
7180 start
= multilib_defaults
;
7181 while (*start
== ' ' || *start
== '\t')
7183 while (*start
!= '\0')
7186 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7188 while (*start
== ' ' || *start
== '\t')
7196 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7197 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7199 while (*start
== ' ' || *start
== '\t')
7205 for (end
= start
+ 1;
7206 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7209 obstack_grow (&multilib_obstack
, start
, end
- start
);
7210 obstack_1grow (&multilib_obstack
, 0);
7211 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7212 mdswitches
[i
++].len
= end
- start
;
7219 p
= multilib_exclusions
;
7222 /* Ignore newlines. */
7229 /* Check the arguments. */
7236 fatal ("multilib exclusions '%s' is invalid",
7237 multilib_exclusions
);
7247 while (*p
!= ' ' && *p
!= ';')
7250 goto invalid_exclusions
;
7254 if (*this_arg
!= '!')
7262 ok
= used_arg (this_arg
, p
- this_arg
);
7277 p
= multilib_select
;
7280 /* Ignore newlines. */
7287 /* Get the initial path. */
7294 fatal ("multilib select '%s' is invalid",
7299 this_path_len
= p
- this_path
;
7301 /* Check the arguments. */
7308 goto invalid_select
;
7317 while (*p
!= ' ' && *p
!= ';')
7320 goto invalid_select
;
7324 if (*this_arg
!= '!')
7332 /* If this is a default argument, we can just ignore it.
7333 This is true even if this_arg begins with '!'. Beginning
7334 with '!' does not mean that this argument is necessarily
7335 inappropriate for this library: it merely means that
7336 there is a more specific library which uses this
7337 argument. If this argument is a default, we need not
7338 consider that more specific library. */
7339 ok
= used_arg (this_arg
, p
- this_arg
);
7346 if (default_arg (this_arg
, p
- this_arg
))
7355 if (this_path_len
!= 1
7356 || this_path
[0] != '.')
7358 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7361 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7362 new_multilib_dir
[this_path_len
] = '\0';
7363 q
= strchr (new_multilib_dir
, ':');
7366 multilib_dir
= new_multilib_dir
;
7373 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7375 while (q
< end
&& *q
!= ':')
7379 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7380 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7381 new_multilib_os_dir
[end
- q
- 1] = '\0';
7382 multilib_os_dir
= new_multilib_os_dir
;
7390 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7391 && strcmp (multilib_os_dir
, ".") == 0)
7393 free ((char *) multilib_os_dir
);
7394 multilib_os_dir
= NULL
;
7396 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7397 multilib_os_dir
= multilib_dir
;
7400 /* Print out the multiple library subdirectory selection
7401 information. This prints out a series of lines. Each line looks
7402 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7403 required. Only the desired options are printed out, the negative
7404 matches. The options are print without a leading dash. There are
7405 no spaces to make it easy to use the information in the shell.
7406 Each subdirectory is printed only once. This assumes the ordering
7407 generated by the genmultilib script. Also, we leave out ones that match
7411 print_multilib_info (void)
7413 const char *p
= multilib_select
;
7414 const char *last_path
= 0, *this_path
;
7416 unsigned int last_path_len
= 0;
7421 /* Ignore newlines. */
7428 /* Get the initial path. */
7435 fatal ("multilib select '%s' is invalid", multilib_select
);
7441 /* When --disable-multilib was used but target defines
7442 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7443 to find multilib_os_dir, so skip them from output. */
7444 if (this_path
[0] == '.' && this_path
[1] == ':')
7447 /* Check for matches with the multilib_exclusions. We don't bother
7448 with the '!' in either list. If any of the exclusion rules match
7449 all of its options with the select rule, we skip it. */
7451 const char *e
= multilib_exclusions
;
7452 const char *this_arg
;
7457 /* Ignore newlines. */
7464 /* Check the arguments. */
7473 fatal ("multilib exclusion '%s' is invalid",
7474 multilib_exclusions
);
7485 while (*e
!= ' ' && *e
!= ';')
7488 goto invalid_exclusion
;
7496 int len
= e
- this_arg
;
7499 goto invalid_select
;
7503 while (*q
!= ' ' && *q
!= ';')
7506 goto invalid_select
;
7510 if (! strncmp (arg
, this_arg
,
7511 (len
< q
- arg
) ? q
- arg
: len
)
7512 || default_arg (this_arg
, e
- this_arg
))
7542 /* If this is a duplicate, skip it. */
7543 skip
= (last_path
!= 0
7544 && (unsigned int) (p
- this_path
) == last_path_len
7545 && ! strncmp (last_path
, this_path
, last_path_len
));
7547 last_path
= this_path
;
7548 last_path_len
= p
- this_path
;
7551 /* If this directory requires any default arguments, we can skip
7552 it. We will already have printed a directory identical to
7553 this one which does not require that default argument. */
7564 goto invalid_select
;
7571 while (*q
!= ' ' && *q
!= ';')
7574 goto invalid_select
;
7579 && default_arg (arg
, q
- arg
))
7594 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7605 goto invalid_select
;
7613 use_arg
= *p
!= '!';
7618 while (*p
!= ' ' && *p
!= ';')
7621 goto invalid_select
;
7633 /* If there are extra options, print them now. */
7634 if (multilib_extra
&& *multilib_extra
)
7636 int print_at
= TRUE
;
7639 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7660 /* getenv built-in spec function.
7662 Returns the value of the environment variable given by its first
7663 argument, concatenated with the second argument. If the
7664 environment variable is not defined, a fatal error is issued. */
7667 getenv_spec_function (int argc
, const char **argv
)
7674 value
= getenv (argv
[0]);
7676 fatal ("environment variable \"%s\" not defined", argv
[0]);
7678 return concat (value
, argv
[1], NULL
);
7681 /* if-exists built-in spec function.
7683 Checks to see if the file specified by the absolute pathname in
7684 ARGS exists. Returns that pathname if found.
7686 The usual use for this function is to check for a library file
7687 (whose name has been expanded with %s). */
7690 if_exists_spec_function (int argc
, const char **argv
)
7692 /* Must have only one argument. */
7693 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7699 /* if-exists-else built-in spec function.
7701 This is like if-exists, but takes an additional argument which
7702 is returned if the first argument does not exist. */
7705 if_exists_else_spec_function (int argc
, const char **argv
)
7707 /* Must have exactly two arguments. */
7711 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7717 /* replace-outfile built-in spec function.
7719 This looks for the first argument in the outfiles array's name and
7720 replaces it with the second argument. */
7723 replace_outfile_spec_function (int argc
, const char **argv
)
7726 /* Must have exactly two arguments. */
7730 for (i
= 0; i
< n_infiles
; i
++)
7732 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7733 outfiles
[i
] = xstrdup (argv
[1]);
7738 /* Given two version numbers, compares the two numbers.
7739 A version number must match the regular expression
7740 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7743 compare_version_strings (const char *v1
, const char *v2
)
7748 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7749 REG_EXTENDED
| REG_NOSUB
) != 0)
7751 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7752 if (rresult
== REG_NOMATCH
)
7753 fatal ("invalid version number `%s'", v1
);
7754 else if (rresult
!= 0)
7756 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7757 if (rresult
== REG_NOMATCH
)
7758 fatal ("invalid version number `%s'", v2
);
7759 else if (rresult
!= 0)
7762 return strverscmp (v1
, v2
);
7766 /* version_compare built-in spec function.
7768 This takes an argument of the following form:
7770 <comparison-op> <arg1> [<arg2>] <switch> <result>
7772 and produces "result" if the comparison evaluates to true,
7773 and nothing if it doesn't.
7775 The supported <comparison-op> values are:
7777 >= true if switch is a later (or same) version than arg1
7779 < true if switch is an earlier version than arg1
7781 >< true if switch is arg1 or later, and earlier than arg2
7782 <> true if switch is earlier than arg1 or is arg2 or later
7784 If the switch is not present, the condition is false unless
7785 the first character of the <comparison-op> is '!'.
7788 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7789 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7792 version_compare_spec_function (int argc
, const char **argv
)
7796 const char *switch_value
= NULL
;
7801 fatal ("too few arguments to %%:version-compare");
7802 if (argv
[0][0] == '\0')
7804 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7806 if (argc
!= nargs
+ 3)
7807 fatal ("too many arguments to %%:version-compare");
7809 switch_len
= strlen (argv
[nargs
+ 1]);
7810 for (i
= 0; i
< n_switches
; i
++)
7811 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7812 && check_live_switch (i
, switch_len
))
7813 switch_value
= switches
[i
].part1
+ switch_len
;
7815 if (switch_value
== NULL
)
7819 comp1
= compare_version_strings (switch_value
, argv
[1]);
7821 comp2
= compare_version_strings (switch_value
, argv
[2]);
7823 comp2
= -1; /* This value unused. */
7826 switch (argv
[0][0] << 8 | argv
[0][1])
7828 case '>' << 8 | '=':
7829 result
= comp1
>= 0;
7831 case '!' << 8 | '<':
7832 result
= comp1
>= 0 || switch_value
== NULL
;
7837 case '!' << 8 | '>':
7838 result
= comp1
< 0 || switch_value
== NULL
;
7840 case '>' << 8 | '<':
7841 result
= comp1
>= 0 && comp2
< 0;
7843 case '<' << 8 | '>':
7844 result
= comp1
< 0 || comp2
>= 0;
7848 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
7853 return argv
[nargs
+ 2];
7856 /* %:include builtin spec function. This differs from %include in that it
7857 can be nested inside a spec, and thus be conditionalized. It takes
7858 one argument, the filename, and looks for it in the startfile path.
7859 The result is always NULL, i.e. an empty expansion. */
7862 include_spec_function (int argc
, const char **argv
)
7869 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, 0);
7870 read_specs (file
? file
: argv
[0], FALSE
);