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 indicating whether we should print the command and arguments */
173 static int verbose_flag
;
175 /* Flag indicating whether we should ONLY print the command and
176 arguments (like verbose_flag) without executing the command.
177 Displayed arguments are quoted so that the generated command
178 line is suitable for execution. This is intended for use in
179 shell scripts to capture the driver-generated command line. */
180 static int verbose_only_flag
;
182 /* Flag indicating how to print command line options of sub-processes. */
184 static int print_subprocess_help
;
186 /* Flag indicating whether we should report subprocess execution times
187 (if this is supported by the system - see pexecute.c). */
189 static int report_times
;
191 /* Nonzero means place this string before uses of /, so that include
192 and library files can be found in an alternate location. */
194 #ifdef TARGET_SYSTEM_ROOT
195 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
197 static const char *target_system_root
= 0;
200 /* Nonzero means pass the updated target_system_root to the compiler. */
202 static int target_system_root_changed
;
204 /* Nonzero means append this string to target_system_root. */
206 static const char *target_sysroot_suffix
= 0;
208 /* Nonzero means append this string to target_system_root for headers. */
210 static const char *target_sysroot_hdrs_suffix
= 0;
212 /* Nonzero means write "temp" files in source directory
213 and use the source file's name in them, and don't delete them. */
215 static int save_temps_flag
;
217 /* Nonzero means pass multiple source files to the compiler at one time. */
219 static int combine_flag
= 0;
221 /* Nonzero means use pipes to communicate between subprocesses.
222 Overridden by either of the above two flags. */
224 static int use_pipes
;
226 /* The compiler version. */
228 static const char *compiler_version
;
230 /* The target version specified with -V */
232 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
234 /* The target machine specified with -b. */
236 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
238 /* Nonzero if cross-compiling.
239 When -b is used, the value comes from the `specs' file. */
241 #ifdef CROSS_DIRECTORY_STRUCTURE
242 static const char *cross_compile
= "1";
244 static const char *cross_compile
= "0";
247 #ifdef MODIFY_TARGET_NAME
249 /* Information on how to alter the target name based on a command-line
250 switch. The only case we support now is simply appending or deleting a
251 string to or from the end of the first part of the configuration name. */
253 static const struct modify_target
255 const char *const sw
;
256 const enum add_del
{ADD
, DELETE
} add_del
;
257 const char *const str
;
259 modify_target
[] = MODIFY_TARGET_NAME
;
262 /* The number of errors that have occurred; the link phase will not be
263 run if this is nonzero. */
264 static int error_count
= 0;
266 /* Greatest exit code of sub-processes that has been encountered up to
268 static int greatest_status
= 1;
270 /* This is the obstack which we use to allocate many strings. */
272 static struct obstack obstack
;
274 /* This is the obstack to build an environment variable to pass to
275 collect2 that describes all of the relevant switches of what to
276 pass the compiler in building the list of pointers to constructors
279 static struct obstack collect_obstack
;
281 /* Forward declaration for prototypes. */
285 static void init_spec (void);
286 static void store_arg (const char *, int, int);
287 static char *load_specs (const char *);
288 static void read_specs (const char *, int);
289 static void set_spec (const char *, const char *);
290 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
291 static char *build_search_list (const struct path_prefix
*, const char *,
293 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
295 static int access_check (const char *, int);
296 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
297 static void add_prefix (struct path_prefix
*, const char *, const char *,
299 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
300 const char *, int, int, int);
301 static void translate_options (int *, const char *const **);
302 static char *skip_whitespace (char *);
303 static void delete_if_ordinary (const char *);
304 static void delete_temp_files (void);
305 static void delete_failure_queue (void);
306 static void clear_failure_queue (void);
307 static int check_live_switch (int, int);
308 static const char *handle_braces (const char *);
309 static inline bool input_suffix_matches (const char *, const char *);
310 static inline bool switch_matches (const char *, const char *, int);
311 static inline void mark_matching_switches (const char *, const char *, int);
312 static inline void process_marked_switches (void);
313 static const char *process_brace_body (const char *, const char *, const char *, int, int);
314 static const struct spec_function
*lookup_spec_function (const char *);
315 static const char *eval_spec_function (const char *, const char *);
316 static const char *handle_spec_function (const char *);
317 static char *save_string (const char *, int);
318 static void set_collect_gcc_options (void);
319 static int do_spec_1 (const char *, int, const char *);
320 static int do_spec_2 (const char *);
321 static void do_option_spec (const char *, const char *);
322 static void do_self_spec (const char *);
323 static const char *find_file (const char *);
324 static int is_directory (const char *, bool);
325 static const char *validate_switches (const char *);
326 static void validate_all_switches (void);
327 static inline void validate_switches_from_spec (const char *);
328 static void give_switch (int, int);
329 static int used_arg (const char *, int);
330 static int default_arg (const char *, int);
331 static void set_multilib_dir (void);
332 static void print_multilib_info (void);
333 static void perror_with_name (const char *);
334 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
335 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
336 static void display_help (void);
337 static void add_preprocessor_option (const char *, int);
338 static void add_assembler_option (const char *, int);
339 static void add_linker_option (const char *, int);
340 static void process_command (int, const char **);
341 static int execute (void);
342 static void alloc_args (void);
343 static void clear_args (void);
344 static void fatal_error (int);
345 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
346 static void init_gcc_specs (struct obstack
*, const char *, const char *,
349 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
350 static const char *convert_filename (const char *, int, int);
353 static const char *if_exists_spec_function (int, const char **);
354 static const char *if_exists_else_spec_function (int, const char **);
355 static const char *replace_outfile_spec_function (int, const char **);
356 static const char *version_compare_spec_function (int, const char **);
357 static const char *include_spec_function (int, const char **);
359 /* The Specs Language
361 Specs are strings containing lines, each of which (if not blank)
362 is made up of a program name, and arguments separated by spaces.
363 The program name must be exact and start from root, since no path
364 is searched and it is unreliable to depend on the current working directory.
365 Redirection of input or output is not supported; the subprograms must
366 accept filenames saying what files to read and write.
368 In addition, the specs can contain %-sequences to substitute variable text
369 or for conditional text. Here is a table of all defined %-sequences.
370 Note that spaces are not generated automatically around the results of
371 expanding these sequences; therefore, you can concatenate them together
372 or with constant text in a single argument.
374 %% substitute one % into the program name or argument.
375 %i substitute the name of the input file being processed.
376 %b substitute the basename of the input file being processed.
377 This is the substring up to (and not including) the last period
378 and not including the directory.
379 %B same as %b, but include the file suffix (text after the last period).
381 substitute a file name that has suffix SUFFIX and is chosen
382 once per compilation, and mark the argument a la %d. To reduce
383 exposure to denial-of-service attacks, the file name is now
384 chosen in a way that is hard to predict even when previously
385 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
386 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
387 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
388 had been pre-processed. Previously, %g was simply substituted
389 with a file name chosen once per compilation, without regard
390 to any appended suffix (which was therefore treated just like
391 ordinary text), making such attacks more likely to succeed.
393 like %g, but if -pipe is in effect, expands simply to "-".
395 like %g, but if -pipe is in effect, expands to nothing. (We have both
396 %| and %m to accommodate differences between system assemblers; see
397 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
399 like %g, but generates a new temporary file name even if %uSUFFIX
402 substitutes the last file name generated with %uSUFFIX, generating a
403 new one if there is no such last file name. In the absence of any
404 %uSUFFIX, this is just like %gSUFFIX, except they don't share
405 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
406 would involve the generation of two distinct file names, one
407 for each `%g.s' and another for each `%U.s'. Previously, %U was
408 simply substituted with a file name chosen for the previous %u,
409 without regard to any appended suffix.
411 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
412 writable, and if save-temps is off; otherwise, substitute the name
413 of a temporary file, just like %u. This temporary file is not
414 meant for communication between processes, but rather as a junk
417 substitutes .SUFFIX for the suffixes of a matched switch's args when
418 it is subsequently output with %*. SUFFIX is terminated by the next
420 %d marks the argument containing or following the %d as a
421 temporary file name, so that that file will be deleted if CC exits
422 successfully. Unlike %g, this contributes no text to the argument.
423 %w marks the argument containing or following the %w as the
424 "output file" of this compilation. This puts the argument
425 into the sequence of arguments that %o will substitute later.
426 %V indicates that this compilation produces no "output file".
428 like %{...} but mark last argument supplied within
429 as a file to be deleted on failure.
430 %o substitutes the names of all the output files, with spaces
431 automatically placed around them. You should write spaces
432 around the %o as well or the results are undefined.
433 %o is for use in the specs for running the linker.
434 Input files whose names have no recognized suffix are not compiled
435 at all, but they are included among the output files, so they will
437 %O substitutes the suffix for object files. Note that this is
438 handled specially when it immediately follows %g, %u, or %U
439 (with or without a suffix argument) because of the need for
440 those to form complete file names. The handling is such that
441 %O is treated exactly as if it had already been substituted,
442 except that %g, %u, and %U do not currently support additional
443 SUFFIX characters following %O as they would following, for
445 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
446 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
447 and -B options) and -imultilib as necessary.
448 %s current argument is the name of a library or startup file of some sort.
449 Search for that file in a standard list of directories
450 and substitute the full name found.
451 %eSTR Print STR as an error message. STR is terminated by a newline.
452 Use this when inconsistent options are detected.
453 %nSTR Print STR as a notice. STR is terminated by a newline.
454 %x{OPTION} Accumulate an option for %X.
455 %X Output the accumulated linker options specified by compilations.
456 %Y Output the accumulated assembler options specified by compilations.
457 %Z Output the accumulated preprocessor options specified by compilations.
458 %a process ASM_SPEC as a spec.
459 This allows config.h to specify part of the spec for running as.
460 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
461 used here. This can be used to run a post-processor after the
462 assembler has done its job.
463 %D Dump out a -L option for each directory in startfile_prefixes.
464 If multilib_dir is set, extra entries are generated with it affixed.
465 %l process LINK_SPEC as a spec.
466 %L process LIB_SPEC as a spec.
467 %G process LIBGCC_SPEC as a spec.
468 %R Output the concatenation of target_system_root and
469 target_sysroot_suffix.
470 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
471 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
472 %C process CPP_SPEC as a spec.
473 %1 process CC1_SPEC as a spec.
474 %2 process CC1PLUS_SPEC as a spec.
475 %* substitute the variable part of a matched option. (See below.)
476 Note that each comma in the substituted string is replaced by
478 %<S remove all occurrences of -S from the command line.
479 Note - this command is position dependent. % commands in the
480 spec string before this one will see -S, % commands in the
481 spec string after this one will not.
482 %<S* remove all occurrences of all switches beginning with -S from the
485 Call the named function FUNCTION, passing it ARGS. ARGS is
486 first processed as a nested spec string, then split into an
487 argument vector in the usual fashion. The function returns
488 a string which is processed as if it had appeared literally
489 as part of the current spec.
490 %{S} substitutes the -S switch, if that switch was given to CC.
491 If that switch was not specified, this substitutes nothing.
492 Here S is a metasyntactic variable.
493 %{S*} substitutes all the switches specified to CC whose names start
494 with -S. This is used for -o, -I, etc; switches that take
495 arguments. CC considers `-o foo' as being one switch whose
496 name starts with `o'. %{o*} would substitute this text,
497 including the space; thus, two arguments would be generated.
498 %{S*&T*} likewise, but preserve order of S and T options (the order
499 of S and T in the spec is not significant). Can be any number
500 of ampersand-separated variables; for each the wild card is
501 optional. Useful for CPP as %{D*&U*&A*}.
503 %{S:X} substitutes X, if the -S switch was given to CC.
504 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
505 %{S*:X} substitutes X if one or more switches whose names start
506 with -S was given to CC. Normally X is substituted only
507 once, no matter how many such switches appeared. However,
508 if %* appears somewhere in X, then X will be substituted
509 once for each matching switch, with the %* replaced by the
510 part of that switch that matched the '*'.
511 %{.S:X} substitutes X, if processing a file with suffix S.
512 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
514 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
515 combined with !, ., and * as above binding stronger than the OR.
516 If %* appears in X, all of the alternatives must be starred, and
517 only the first matching alternative is substituted.
518 %{S:X; if S was given to CC, substitutes X;
519 T:Y; else if T was given to CC, substitutes Y;
520 :D} else substitutes D. There can be as many clauses as you need.
521 This may be combined with ., !, |, and * as above.
523 %(Spec) processes a specification defined in a specs file as *Spec:
524 %[Spec] as above, but put __ around -D arguments
526 The conditional text X in a %{S:X} or similar construct may contain
527 other nested % constructs or spaces, or even newlines. They are
528 processed as usual, as described above. Trailing white space in X is
529 ignored. White space may also appear anywhere on the left side of the
530 colon in these constructs, except between . or * and the corresponding
533 The -O, -f, -m, and -W switches are handled specifically in these
534 constructs. If another value of -O or the negated form of a -f, -m, or
535 -W switch is found later in the command line, the earlier switch
536 value is ignored, except with {S*} where S is just one letter; this
537 passes all matching options.
539 The character | at the beginning of the predicate text is used to indicate
540 that a command should be piped to the following command, but only if -pipe
543 Note that it is built into CC which switches take arguments and which
544 do not. You might think it would be useful to generalize this to
545 allow each compiler's spec to say which switches take arguments. But
546 this cannot be done in a consistent fashion. CC cannot even decide
547 which input files have been specified without knowing which switches
548 take arguments, and it must know which input files to compile in order
549 to tell which compilers to run.
551 CC also knows implicitly that arguments starting in `-l' are to be
552 treated as compiler output files, and passed to the linker in their
553 proper position among the other output files. */
555 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
557 /* config.h can define ASM_SPEC to provide extra args to the assembler
558 or extra switch-translations. */
563 /* config.h can define ASM_FINAL_SPEC to run a post processor after
564 the assembler has run. */
565 #ifndef ASM_FINAL_SPEC
566 #define ASM_FINAL_SPEC ""
569 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
570 or extra switch-translations. */
575 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
576 or extra switch-translations. */
581 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
582 or extra switch-translations. */
584 #define CC1PLUS_SPEC ""
587 /* config.h can define LINK_SPEC to provide extra args to the linker
588 or extra switch-translations. */
593 /* config.h can define LIB_SPEC to override the default libraries. */
595 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
600 /* XXX: valid only for GNU ld */
601 /* XXX: should exactly match hooks provided by libmudflap.a */
602 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
603 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
604 --wrap=mmap --wrap=munmap --wrap=alloca\
605 } %{fmudflapth: --wrap=pthread_create\
606 }} %{fmudflap|fmudflapth: --wrap=main}"
609 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
612 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
615 #if defined(REAL_LIBGCC_SPEC)
616 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
617 #elif defined(LINK_LIBGCC_SPECIAL_1)
618 /* Have gcc do the search for libgcc.a. */
619 #define LIBGCC_SPEC "libgcc.a%s"
621 #define LIBGCC_SPEC "-lgcc"
625 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
626 #ifndef STARTFILE_SPEC
627 #define STARTFILE_SPEC \
628 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
631 /* config.h can define SWITCHES_NEED_SPACES to control which options
632 require spaces between the option and the argument. */
633 #ifndef SWITCHES_NEED_SPACES
634 #define SWITCHES_NEED_SPACES ""
637 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
639 #define ENDFILE_SPEC ""
643 #define LINKER_NAME "collect2"
646 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
648 #ifndef ASM_DEBUG_SPEC
649 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
650 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
651 # define ASM_DEBUG_SPEC \
652 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
653 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
654 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
656 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
657 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
659 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
660 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
664 #ifndef ASM_DEBUG_SPEC
665 # define ASM_DEBUG_SPEC ""
668 /* Here is the spec for running the linker, after compiling all files. */
670 /* This is overridable by the target in case they need to specify the
671 -lgcc and -lc order specially, yet not require them to override all
672 of LINK_COMMAND_SPEC. */
673 #ifndef LINK_GCC_C_SEQUENCE_SPEC
674 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
677 #ifndef LINK_SSP_SPEC
678 #ifdef TARGET_LIBC_PROVIDES_SSP
679 #define LINK_SSP_SPEC "%{fstack-protector:}"
681 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
685 #ifndef LINK_PIE_SPEC
687 #define LINK_PIE_SPEC "%{pie:-pie} "
689 #define LINK_PIE_SPEC "%{pie:} "
693 /* -u* was put back because both BSD and SysV seem to support it. */
694 /* %{static:} simply prevents an error message if the target machine
695 doesn't handle -static. */
696 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
697 scripts which exist in user specified directories, or in standard
699 #ifndef LINK_COMMAND_SPEC
700 #define LINK_COMMAND_SPEC "\
701 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
702 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
703 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
704 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
705 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
706 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
707 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
708 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
711 #ifndef LINK_LIBGCC_SPEC
712 /* Generate -L options for startfile prefix list. */
713 # define LINK_LIBGCC_SPEC "%D"
716 #ifndef STARTFILE_PREFIX_SPEC
717 # define STARTFILE_PREFIX_SPEC ""
721 # define SYSROOT_SPEC "--sysroot=%R"
724 #ifndef SYSROOT_SUFFIX_SPEC
725 # define SYSROOT_SUFFIX_SPEC ""
728 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
729 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
732 static const char *asm_debug
;
733 static const char *cpp_spec
= CPP_SPEC
;
734 static const char *cc1_spec
= CC1_SPEC
;
735 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
736 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
737 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
738 static const char *asm_spec
= ASM_SPEC
;
739 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
740 static const char *link_spec
= LINK_SPEC
;
741 static const char *lib_spec
= LIB_SPEC
;
742 static const char *mfwrap_spec
= MFWRAP_SPEC
;
743 static const char *mflib_spec
= MFLIB_SPEC
;
744 static const char *link_gomp_spec
= "";
745 static const char *libgcc_spec
= LIBGCC_SPEC
;
746 static const char *endfile_spec
= ENDFILE_SPEC
;
747 static const char *startfile_spec
= STARTFILE_SPEC
;
748 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
749 static const char *linker_name_spec
= LINKER_NAME
;
750 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
751 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
752 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
753 static const char *sysroot_spec
= SYSROOT_SPEC
;
754 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
755 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
757 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
758 There should be no need to override these in target dependent files,
759 but we need to copy them to the specs file so that newer versions
760 of the GCC driver can correctly drive older tool chains with the
761 appropriate -B options. */
763 /* When cpplib handles traditional preprocessing, get rid of this, and
764 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
765 that we default the front end language better. */
766 static const char *trad_capable_cpp
=
767 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
769 /* We don't wrap .d files in %W{} since a missing .d file, and
770 therefore no dependency entry, confuses make into thinking a .o
771 file that happens to exist is up-to-date. */
772 static const char *cpp_unique_options
=
773 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
774 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
775 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
776 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
777 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
778 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
779 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
780 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
781 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
782 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
785 /* This contains cpp options which are common with cc1_options and are passed
786 only when preprocessing only to avoid duplication. We pass the cc1 spec
787 options to the preprocessor so that it the cc1 spec may manipulate
788 options used to set target flags. Those special target flags settings may
789 in turn cause preprocessor symbols to be defined specially. */
790 static const char *cpp_options
=
791 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
792 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
793 %{undef} %{save-temps:-fpch-preprocess}";
795 /* This contains cpp options which are not passed when the preprocessor
796 output will be used by another program. */
797 static const char *cpp_debug_options
= "%{d*}";
799 /* NB: This is shared amongst all front-ends. */
800 static const char *cc1_options
=
801 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
802 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
803 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
804 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
805 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
806 %{Qn:-fno-ident} %{--help:--help}\
807 %{--target-help:--target-help}\
808 %{--help=*:--help=%(VALUE)}\
809 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
810 %{fsyntax-only:-o %j} %{-param*}\
811 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
812 %{coverage:-fprofile-arcs -ftest-coverage}";
814 static const char *asm_options
=
815 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
817 static const char *invoke_as
=
818 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
819 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
821 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
824 /* Some compilers have limits on line lengths, and the multilib_select
825 and/or multilib_matches strings can be very long, so we build them at
827 static struct obstack multilib_obstack
;
828 static const char *multilib_select
;
829 static const char *multilib_matches
;
830 static const char *multilib_defaults
;
831 static const char *multilib_exclusions
;
833 /* Check whether a particular argument is a default argument. */
835 #ifndef MULTILIB_DEFAULTS
836 #define MULTILIB_DEFAULTS { "" }
839 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
841 #ifndef DRIVER_SELF_SPECS
842 #define DRIVER_SELF_SPECS ""
845 /* Adding -fopenmp should imply pthreads. This is particularly important
846 for targets that use different start files and suchlike. */
847 #ifndef GOMP_SELF_SPECS
848 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
851 static const char *const driver_self_specs
[] = {
852 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
855 #ifndef OPTION_DEFAULT_SPECS
856 #define OPTION_DEFAULT_SPECS { "", "" }
865 static const struct default_spec
866 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
870 struct user_specs
*next
;
871 const char *filename
;
874 static struct user_specs
*user_specs_head
, *user_specs_tail
;
876 #ifndef SWITCH_TAKES_ARG
877 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
880 #ifndef WORD_SWITCH_TAKES_ARG
881 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
884 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
885 /* This defines which switches stop a full compilation. */
886 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
887 ((CHAR) == 'c' || (CHAR) == 'S')
889 #ifndef SWITCH_CURTAILS_COMPILATION
890 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
891 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
895 /* Record the mapping from file suffixes for compilation specs. */
899 const char *suffix
; /* Use this compiler for input files
900 whose names end in this suffix. */
902 const char *spec
; /* To use this compiler, run this spec. */
904 const char *cpp_spec
; /* If non-NULL, substitute this spec
905 for `%C', rather than the usual
907 const int combinable
; /* If nonzero, compiler can deal with
908 multiple source files at once (IMA). */
909 const int needs_preprocessing
; /* If nonzero, source files need to
910 be run through a preprocessor. */
913 /* Pointer to a vector of `struct compiler' that gives the spec for
914 compiling a file, based on its suffix.
915 A file that does not end in any of these suffixes will be passed
916 unchanged to the loader and nothing else will be done to it.
918 An entry containing two 0s is used to terminate the vector.
920 If multiple entries match a file, the last matching one is used. */
922 static struct compiler
*compilers
;
924 /* Number of entries in `compilers', not counting the null terminator. */
926 static int n_compilers
;
928 /* The default list of file name suffixes and their compilation specs. */
930 static const struct compiler default_compilers
[] =
932 /* Add lists of suffixes of known languages here. If those languages
933 were not present when we built the driver, we will hit these copies
934 and be given a more meaningful error than "file not used since
935 linking is not done". */
936 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
937 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
938 {".mii", "#Objective-C++", 0, 0, 0},
939 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
940 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
941 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
942 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
943 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
944 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
945 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
946 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
947 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
948 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
949 {".r", "#Ratfor", 0, 0, 0},
950 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
951 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
952 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
953 /* Next come the entries for C. */
954 {".c", "@c", 0, 1, 1},
956 /* cc1 has an integrated ISO C preprocessor. We should invoke the
957 external preprocessor if -save-temps is given. */
958 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
960 %{traditional|ftraditional:\
961 %eGNU C no longer supports -traditional without -E}\
963 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
964 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
965 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
967 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
968 cc1 %(cpp_unique_options) %(cc1_options)}}}\
969 %{!fsyntax-only:%(invoke_as)}} \
971 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
972 %(cpp_options) -o %{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)}}}}}}", 0, 1, 1},
977 "%{!E:%e-E or -x required when input is from standard input}\
978 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
979 {".h", "@c-header", 0, 0, 0},
981 /* cc1 has an integrated ISO C preprocessor. We should invoke the
982 external preprocessor if -save-temps is given. */
983 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
985 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
986 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
987 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
989 -o %g.s %{!o*:--output-pch=%i.gch}\
990 %W{o*:--output-pch=%*}%V}\
991 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
992 cc1 %(cpp_unique_options) %(cc1_options)\
993 -o %g.s %{!o*:--output-pch=%i.gch}\
994 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
995 {".i", "@cpp-output", 0, 1, 0},
997 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
998 {".s", "@assembler", 0, 1, 0},
1000 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1001 {".S", "@assembler-with-cpp", 0, 1, 0},
1002 {"@assembler-with-cpp",
1003 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1004 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1005 %{E|M|MM:%(cpp_debug_options)}\
1006 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1007 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1009 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1010 %{E|M|MM:%(cpp_debug_options)}\
1011 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1012 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1017 /* Mark end of table. */
1021 /* Number of elements in default_compilers, not counting the terminator. */
1023 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1025 /* A vector of options to give to the linker.
1026 These options are accumulated by %x,
1027 and substituted into the linker command with %X. */
1028 static int n_linker_options
;
1029 static char **linker_options
;
1031 /* A vector of options to give to the assembler.
1032 These options are accumulated by -Wa,
1033 and substituted into the assembler command with %Y. */
1034 static int n_assembler_options
;
1035 static char **assembler_options
;
1037 /* A vector of options to give to the preprocessor.
1038 These options are accumulated by -Wp,
1039 and substituted into the preprocessor command with %Z. */
1040 static int n_preprocessor_options
;
1041 static char **preprocessor_options
;
1043 /* Define how to map long options into short ones. */
1045 /* This structure describes one mapping. */
1048 /* The long option's name. */
1049 const char *const name
;
1050 /* The equivalent short option. */
1051 const char *const equivalent
;
1052 /* Argument info. A string of flag chars; NULL equals no options.
1053 a => argument required.
1054 o => argument optional.
1055 j => join argument to equivalent, making one word.
1056 * => require other text after NAME as an argument. */
1057 const char *const arg_info
;
1060 /* This is the table of mappings. Mappings are tried sequentially
1061 for each option encountered; the first one that matches, wins. */
1063 static const struct option_map option_map
[] =
1065 {"--all-warnings", "-Wall", 0},
1066 {"--ansi", "-ansi", 0},
1067 {"--assemble", "-S", 0},
1068 {"--assert", "-A", "a"},
1069 {"--classpath", "-fclasspath=", "aj"},
1070 {"--bootclasspath", "-fbootclasspath=", "aj"},
1071 {"--CLASSPATH", "-fclasspath=", "aj"},
1072 {"--combine", "-combine", 0},
1073 {"--comments", "-C", 0},
1074 {"--comments-in-macros", "-CC", 0},
1075 {"--compile", "-c", 0},
1076 {"--debug", "-g", "oj"},
1077 {"--define-macro", "-D", "aj"},
1078 {"--dependencies", "-M", 0},
1079 {"--dump", "-d", "a"},
1080 {"--dumpbase", "-dumpbase", "a"},
1081 {"--encoding", "-fencoding=", "aj"},
1082 {"--entry", "-e", 0},
1083 {"--extra-warnings", "-W", 0},
1084 {"--extdirs", "-fextdirs=", "aj"},
1085 {"--for-assembler", "-Wa", "a"},
1086 {"--for-linker", "-Xlinker", "a"},
1087 {"--force-link", "-u", "a"},
1088 {"--coverage", "-coverage", 0},
1089 {"--imacros", "-imacros", "a"},
1090 {"--include", "-include", "a"},
1091 {"--include-barrier", "-I-", 0},
1092 {"--include-directory", "-I", "aj"},
1093 {"--include-directory-after", "-idirafter", "a"},
1094 {"--include-prefix", "-iprefix", "a"},
1095 {"--include-with-prefix", "-iwithprefix", "a"},
1096 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1097 {"--include-with-prefix-after", "-iwithprefix", "a"},
1098 {"--language", "-x", "a"},
1099 {"--library-directory", "-L", "a"},
1100 {"--machine", "-m", "aj"},
1101 {"--machine-", "-m", "*j"},
1102 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1103 {"--no-line-commands", "-P", 0},
1104 {"--no-precompiled-includes", "-noprecomp", 0},
1105 {"--no-standard-includes", "-nostdinc", 0},
1106 {"--no-standard-libraries", "-nostdlib", 0},
1107 {"--no-warnings", "-w", 0},
1108 {"--optimize", "-O", "oj"},
1109 {"--output", "-o", "a"},
1110 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1111 {"--param", "--param", "a"},
1112 {"--pass-exit-codes", "-pass-exit-codes", 0},
1113 {"--pedantic", "-pedantic", 0},
1114 {"--pedantic-errors", "-pedantic-errors", 0},
1115 {"--pie", "-pie", 0},
1116 {"--pipe", "-pipe", 0},
1117 {"--prefix", "-B", "a"},
1118 {"--preprocess", "-E", 0},
1119 {"--print-search-dirs", "-print-search-dirs", 0},
1120 {"--print-file-name", "-print-file-name=", "aj"},
1121 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1122 {"--print-missing-file-dependencies", "-MG", 0},
1123 {"--print-multi-lib", "-print-multi-lib", 0},
1124 {"--print-multi-directory", "-print-multi-directory", 0},
1125 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1126 {"--print-prog-name", "-print-prog-name=", "aj"},
1127 {"--profile", "-p", 0},
1128 {"--profile-blocks", "-a", 0},
1129 {"--quiet", "-q", 0},
1130 {"--resource", "-fcompile-resource=", "aj"},
1131 {"--save-temps", "-save-temps", 0},
1132 {"--shared", "-shared", 0},
1133 {"--silent", "-q", 0},
1134 {"--specs", "-specs=", "aj"},
1135 {"--static", "-static", 0},
1136 {"--std", "-std=", "aj"},
1137 {"--symbolic", "-symbolic", 0},
1138 {"--sysroot", "--sysroot=", "aj"},
1139 {"--time", "-time", 0},
1140 {"--trace-includes", "-H", 0},
1141 {"--traditional", "-traditional", 0},
1142 {"--traditional-cpp", "-traditional-cpp", 0},
1143 {"--trigraphs", "-trigraphs", 0},
1144 {"--undefine-macro", "-U", "aj"},
1145 {"--user-dependencies", "-MM", 0},
1146 {"--verbose", "-v", 0},
1147 {"--warn-", "-W", "*j"},
1148 {"--write-dependencies", "-MD", 0},
1149 {"--write-user-dependencies", "-MMD", 0},
1154 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1155 static const struct {
1156 const char *const option_found
;
1157 const char *const replacements
;
1158 } target_option_translations
[] =
1160 TARGET_OPTION_TRANSLATE_TABLE
,
1165 /* Translate the options described by *ARGCP and *ARGVP.
1166 Make a new vector and store it back in *ARGVP,
1167 and store its length in *ARGVC. */
1170 translate_options (int *argcp
, const char *const **argvp
)
1174 const char *const *argv
= *argvp
;
1175 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1176 const char **newv
= xmalloc (newvsize
);
1180 newv
[newindex
++] = argv
[i
++];
1184 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1188 target_option_translations
[tott_idx
].option_found
;
1191 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1198 for (sp
= target_option_translations
[tott_idx
].replacements
;
1205 newvsize
+= spaces
* sizeof (const char *);
1206 newv
= xrealloc (newv
, newvsize
);
1208 sp
= target_option_translations
[tott_idx
].replacements
;
1217 newv
[newindex
++] = np
;
1218 while (*np
!= ' ' && *np
)
1229 if (target_option_translations
[tott_idx
].option_found
)
1233 /* Translate -- options. */
1234 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1237 /* Find a mapping that applies to this option. */
1238 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1240 size_t optlen
= strlen (option_map
[j
].name
);
1241 size_t arglen
= strlen (argv
[i
]);
1242 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1243 const char *arginfo
= option_map
[j
].arg_info
;
1248 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1250 const char *arg
= 0;
1252 if (arglen
< optlen
)
1255 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1256 if (strlen (option_map
[k
].name
) >= arglen
1257 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1259 error ("ambiguous abbreviation %s", argv
[i
]);
1263 if (k
!= ARRAY_SIZE (option_map
))
1267 if (arglen
> optlen
)
1269 /* If the option has an argument, accept that. */
1270 if (argv
[i
][optlen
] == '=')
1271 arg
= argv
[i
] + optlen
+ 1;
1273 /* If this mapping requires extra text at end of name,
1274 accept that as "argument". */
1275 else if (strchr (arginfo
, '*') != 0)
1276 arg
= argv
[i
] + optlen
;
1278 /* Otherwise, extra text at end means mismatch.
1279 Try other mappings. */
1284 else if (strchr (arginfo
, '*') != 0)
1286 error ("incomplete '%s' option", option_map
[j
].name
);
1290 /* Handle arguments. */
1291 if (strchr (arginfo
, 'a') != 0)
1297 error ("missing argument to '%s' option",
1298 option_map
[j
].name
);
1305 else if (strchr (arginfo
, '*') != 0)
1307 else if (strchr (arginfo
, 'o') == 0)
1310 error ("extraneous argument to '%s' option",
1311 option_map
[j
].name
);
1315 /* Store the translation as one argv elt or as two. */
1316 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1317 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1321 newv
[newindex
++] = option_map
[j
].equivalent
;
1322 newv
[newindex
++] = arg
;
1325 newv
[newindex
++] = option_map
[j
].equivalent
;
1333 /* Handle old-fashioned options--just copy them through,
1334 with their arguments. */
1335 else if (argv
[i
][0] == '-')
1337 const char *p
= argv
[i
] + 1;
1341 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1342 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1343 else if (WORD_SWITCH_TAKES_ARG (p
))
1344 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1345 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1348 else if (! strcmp (p
, "Xlinker"))
1350 else if (! strcmp (p
, "Xpreprocessor"))
1352 else if (! strcmp (p
, "Xassembler"))
1355 /* Watch out for an option at the end of the command line that
1356 is missing arguments, and avoid skipping past the end of the
1358 if (nskip
+ i
> argc
)
1363 newv
[newindex
++] = argv
[i
++];
1368 /* Ordinary operands, or +e options. */
1369 newv
[newindex
++] = argv
[i
++];
1379 skip_whitespace (char *p
)
1383 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1384 be considered whitespace. */
1385 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1387 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1401 /* Structures to keep track of prefixes to try when looking for files. */
1405 const char *prefix
; /* String to prepend to the path. */
1406 struct prefix_list
*next
; /* Next in linked list. */
1407 int require_machine_suffix
; /* Don't use without machine_suffix. */
1408 /* 2 means try both machine_suffix and just_machine_suffix. */
1409 int priority
; /* Sort key - priority within list. */
1410 int os_multilib
; /* 1 if OS multilib scheme should be used,
1411 0 for GCC multilib scheme. */
1416 struct prefix_list
*plist
; /* List of prefixes to try */
1417 int max_len
; /* Max length of a prefix in PLIST */
1418 const char *name
; /* Name of this list (used in config stuff) */
1421 /* List of prefixes to try when looking for executables. */
1423 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1425 /* List of prefixes to try when looking for startup (crt0) files. */
1427 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1429 /* List of prefixes to try when looking for include files. */
1431 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1433 /* Suffix to attach to directories searched for commands.
1434 This looks like `MACHINE/VERSION/'. */
1436 static const char *machine_suffix
= 0;
1438 /* Suffix to attach to directories searched for commands.
1439 This is just `MACHINE/'. */
1441 static const char *just_machine_suffix
= 0;
1443 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1445 static const char *gcc_exec_prefix
;
1447 /* Adjusted value of standard_libexec_prefix. */
1449 static const char *gcc_libexec_prefix
;
1451 /* Default prefixes to attach to command names. */
1453 #ifndef STANDARD_STARTFILE_PREFIX_1
1454 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1456 #ifndef STANDARD_STARTFILE_PREFIX_2
1457 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1460 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1461 #undef MD_EXEC_PREFIX
1462 #undef MD_STARTFILE_PREFIX
1463 #undef MD_STARTFILE_PREFIX_1
1466 /* If no prefixes defined, use the null string, which will disable them. */
1467 #ifndef MD_EXEC_PREFIX
1468 #define MD_EXEC_PREFIX ""
1470 #ifndef MD_STARTFILE_PREFIX
1471 #define MD_STARTFILE_PREFIX ""
1473 #ifndef MD_STARTFILE_PREFIX_1
1474 #define MD_STARTFILE_PREFIX_1 ""
1477 /* These directories are locations set at configure-time based on the
1478 --prefix option provided to configure. Their initializers are
1479 defined in Makefile.in. These paths are not *directly* used when
1480 gcc_exec_prefix is set because, in that case, we know where the
1481 compiler has been installed, and use paths relative to that
1482 location instead. */
1483 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1484 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1485 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1486 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1488 /* For native compilers, these are well-known paths containing
1489 components that may be provided by the system. For cross
1490 compilers, these paths are not used. */
1491 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1492 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1493 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1494 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1495 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1496 static const char *const standard_startfile_prefix_1
1497 = STANDARD_STARTFILE_PREFIX_1
;
1498 static const char *const standard_startfile_prefix_2
1499 = STANDARD_STARTFILE_PREFIX_2
;
1501 /* A relative path to be used in finding the location of tools
1502 relative to the driver. */
1503 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1505 /* Subdirectory to use for locating libraries. Set by
1506 set_multilib_dir based on the compilation options. */
1508 static const char *multilib_dir
;
1510 /* Subdirectory to use for locating libraries in OS conventions. Set by
1511 set_multilib_dir based on the compilation options. */
1513 static const char *multilib_os_dir
;
1515 /* Structure to keep track of the specs that have been defined so far.
1516 These are accessed using %(specname) or %[specname] in a compiler
1521 /* The following 2 fields must be first */
1522 /* to allow EXTRA_SPECS to be initialized */
1523 const char *name
; /* name of the spec. */
1524 const char *ptr
; /* available ptr if no static pointer */
1526 /* The following fields are not initialized */
1527 /* by EXTRA_SPECS */
1528 const char **ptr_spec
; /* pointer to the spec itself. */
1529 struct spec_list
*next
; /* Next spec in linked list. */
1530 int name_len
; /* length of the name */
1531 int alloc_p
; /* whether string was allocated */
1534 #define INIT_STATIC_SPEC(NAME,PTR) \
1535 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1537 /* List of statically defined specs. */
1538 static struct spec_list static_specs
[] =
1540 INIT_STATIC_SPEC ("asm", &asm_spec
),
1541 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1542 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1543 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1544 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1545 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1546 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1547 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1548 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1549 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1550 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1551 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1552 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1553 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1554 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1555 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1556 INIT_STATIC_SPEC ("link", &link_spec
),
1557 INIT_STATIC_SPEC ("lib", &lib_spec
),
1558 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1559 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1560 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1561 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1562 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1563 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1564 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1565 INIT_STATIC_SPEC ("version", &compiler_version
),
1566 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1567 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1568 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1569 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1570 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1571 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1572 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1573 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1574 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1575 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1576 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1577 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1578 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1579 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1580 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1583 #ifdef EXTRA_SPECS /* additional specs needed */
1584 /* Structure to keep track of just the first two args of a spec_list.
1585 That is all that the EXTRA_SPECS macro gives us. */
1588 const char *const name
;
1589 const char *const ptr
;
1592 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1593 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1596 /* List of dynamically allocates specs that have been defined so far. */
1598 static struct spec_list
*specs
= (struct spec_list
*) 0;
1600 /* List of static spec functions. */
1602 static const struct spec_function static_spec_functions
[] =
1604 { "if-exists", if_exists_spec_function
},
1605 { "if-exists-else", if_exists_else_spec_function
},
1606 { "replace-outfile", replace_outfile_spec_function
},
1607 { "version-compare", version_compare_spec_function
},
1608 { "include", include_spec_function
},
1609 #ifdef EXTRA_SPEC_FUNCTIONS
1610 EXTRA_SPEC_FUNCTIONS
1615 static int processing_spec_function
;
1617 /* Add appropriate libgcc specs to OBSTACK, taking into account
1618 various permutations of -shared-libgcc, -shared, and such. */
1620 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1622 #ifndef USE_LD_AS_NEEDED
1623 #define USE_LD_AS_NEEDED 0
1627 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1628 const char *static_name
, const char *eh_name
)
1632 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1633 "%{!static:%{!static-libgcc:"
1634 #if USE_LD_AS_NEEDED
1635 "%{!shared-libgcc:",
1636 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1639 shared_name
, "%{!shared: ", static_name
, "}"
1643 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1644 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1648 "%{shared-libgcc:", shared_name
, "}"
1649 "%{!shared-libgcc:", static_name
, "}"
1652 "%{shared:", shared_name
, "}"
1657 obstack_grow (obstack
, buf
, strlen (buf
));
1660 #endif /* ENABLE_SHARED_LIBGCC */
1662 /* Initialize the specs lookup routines. */
1667 struct spec_list
*next
= (struct spec_list
*) 0;
1668 struct spec_list
*sl
= (struct spec_list
*) 0;
1672 return; /* Already initialized. */
1675 notice ("Using built-in specs.\n");
1678 extra_specs
= xcalloc (sizeof (struct spec_list
),
1679 ARRAY_SIZE (extra_specs_1
));
1681 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1683 sl
= &extra_specs
[i
];
1684 sl
->name
= extra_specs_1
[i
].name
;
1685 sl
->ptr
= extra_specs_1
[i
].ptr
;
1687 sl
->name_len
= strlen (sl
->name
);
1688 sl
->ptr_spec
= &sl
->ptr
;
1693 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1694 on ?: in file-scope variable initializations. */
1695 asm_debug
= ASM_DEBUG_SPEC
;
1697 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1699 sl
= &static_specs
[i
];
1704 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1705 /* ??? If neither -shared-libgcc nor --static-libgcc was
1706 seen, then we should be making an educated guess. Some proposed
1707 heuristics for ELF include:
1709 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1710 program will be doing dynamic loading, which will likely
1711 need the shared libgcc.
1713 (2) If "-ldl", then it's also a fair bet that we're doing
1716 (3) For each ET_DYN we're linking against (either through -lfoo
1717 or /some/path/foo.so), check to see whether it or one of
1718 its dependencies depends on a shared libgcc.
1722 If the runtime is fixed to look for program headers instead
1723 of calling __register_frame_info at all, for each object,
1724 use the shared libgcc if any EH symbol referenced.
1726 If crtstuff is fixed to not invoke __register_frame_info
1727 automatically, for each object, use the shared libgcc if
1728 any non-empty unwind section found.
1730 Doing any of this probably requires invoking an external program to
1731 do the actual object file scanning. */
1733 const char *p
= libgcc_spec
;
1736 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1737 when given the proper command line arguments. */
1740 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1742 init_gcc_specs (&obstack
,
1744 #ifdef USE_LIBUNWIND_EXCEPTIONS
1750 #ifdef USE_LIBUNWIND_EXCEPTIONS
1751 # ifdef HAVE_LD_STATIC_DYNAMIC
1752 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1762 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1764 /* Ug. We don't know shared library extensions. Hope that
1765 systems that use this form don't do shared libraries. */
1766 init_gcc_specs (&obstack
,
1770 #ifdef USE_LIBUNWIND_EXCEPTIONS
1779 obstack_1grow (&obstack
, *p
);
1780 in_sep
= (*p
== ' ');
1785 obstack_1grow (&obstack
, '\0');
1786 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1789 #ifdef USE_AS_TRADITIONAL_FORMAT
1790 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1792 static const char tf
[] = "--traditional-format ";
1793 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1794 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1795 asm_spec
= XOBFINISH (&obstack
, const char *);
1799 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1800 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1801 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1802 link_spec
= XOBFINISH (&obstack
, const char *);
1808 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1809 removed; If the spec starts with a + then SPEC is added to the end of the
1813 set_spec (const char *name
, const char *spec
)
1815 struct spec_list
*sl
;
1816 const char *old_spec
;
1817 int name_len
= strlen (name
);
1820 /* If this is the first call, initialize the statically allocated specs. */
1823 struct spec_list
*next
= (struct spec_list
*) 0;
1824 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1826 sl
= &static_specs
[i
];
1833 /* See if the spec already exists. */
1834 for (sl
= specs
; sl
; sl
= sl
->next
)
1835 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1840 /* Not found - make it. */
1841 sl
= XNEW (struct spec_list
);
1842 sl
->name
= xstrdup (name
);
1843 sl
->name_len
= name_len
;
1844 sl
->ptr_spec
= &sl
->ptr
;
1846 *(sl
->ptr_spec
) = "";
1851 old_spec
= *(sl
->ptr_spec
);
1852 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1853 ? concat (old_spec
, spec
+ 1, NULL
)
1858 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1861 /* Free the old spec. */
1862 if (old_spec
&& sl
->alloc_p
)
1863 free ((void *) old_spec
);
1868 /* Accumulate a command (program name and args), and run it. */
1870 /* Vector of pointers to arguments in the current line of specifications. */
1872 static const char **argbuf
;
1874 /* Number of elements allocated in argbuf. */
1876 static int argbuf_length
;
1878 /* Number of elements in argbuf currently in use (containing args). */
1880 static int argbuf_index
;
1882 /* Position in the argbuf array containing the name of the output file
1883 (the value associated with the "-o" flag). */
1885 static int have_o_argbuf_index
= 0;
1887 /* Were the options -c or -S passed. */
1888 static int have_c
= 0;
1890 /* Was the option -o passed. */
1891 static int have_o
= 0;
1893 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1894 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1897 static struct temp_name
{
1898 const char *suffix
; /* suffix associated with the code. */
1899 int length
; /* strlen (suffix). */
1900 int unique
; /* Indicates whether %g or %u/%U was used. */
1901 const char *filename
; /* associated filename. */
1902 int filename_length
; /* strlen (filename). */
1903 struct temp_name
*next
;
1906 /* Number of commands executed so far. */
1908 static int execution_count
;
1910 /* Number of commands that exited with a signal. */
1912 static int signal_count
;
1914 /* Name with which this program was invoked. */
1916 static const char *programname
;
1918 /* Allocate the argument vector. */
1924 argbuf
= XNEWVEC (const char *, argbuf_length
);
1927 /* Clear out the vector of arguments (after a command is executed). */
1935 /* Add one argument to the vector at the end.
1936 This is done when a space is seen or at the end of the line.
1937 If DELETE_ALWAYS is nonzero, the arg is a filename
1938 and the file should be deleted eventually.
1939 If DELETE_FAILURE is nonzero, the arg is a filename
1940 and the file should be deleted if this compilation fails. */
1943 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1945 if (argbuf_index
+ 1 == argbuf_length
)
1946 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1948 argbuf
[argbuf_index
++] = arg
;
1949 argbuf
[argbuf_index
] = 0;
1951 if (strcmp (arg
, "-o") == 0)
1952 have_o_argbuf_index
= argbuf_index
;
1953 if (delete_always
|| delete_failure
)
1954 record_temp_file (arg
, delete_always
, delete_failure
);
1957 /* Load specs from a file name named FILENAME, replacing occurrences of
1958 various different types of line-endings, \r\n, \n\r and just \r, with
1962 load_specs (const char *filename
)
1966 struct stat statbuf
;
1973 notice ("Reading specs from %s\n", filename
);
1975 /* Open and stat the file. */
1976 desc
= open (filename
, O_RDONLY
, 0);
1978 pfatal_with_name (filename
);
1979 if (stat (filename
, &statbuf
) < 0)
1980 pfatal_with_name (filename
);
1982 /* Read contents of file into BUFFER. */
1983 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1984 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1986 pfatal_with_name (filename
);
1987 buffer
[readlen
] = 0;
1990 specs
= XNEWVEC (char, readlen
+ 1);
1992 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1998 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2000 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2014 /* Read compilation specs from a file named FILENAME,
2015 replacing the default ones.
2017 A suffix which starts with `*' is a definition for
2018 one of the machine-specific sub-specs. The "suffix" should be
2019 *asm, *cc1, *cpp, *link, *startfile, etc.
2020 The corresponding spec is stored in asm_spec, etc.,
2021 rather than in the `compilers' vector.
2023 Anything invalid in the file is a fatal error. */
2026 read_specs (const char *filename
, int main_p
)
2031 buffer
= load_specs (filename
);
2033 /* Scan BUFFER for specs, putting them in the vector. */
2039 char *in
, *out
, *p1
, *p2
, *p3
;
2041 /* Advance P in BUFFER to the next nonblank nocomment line. */
2042 p
= skip_whitespace (p
);
2046 /* Is this a special command that starts with '%'? */
2047 /* Don't allow this for the main specs file, since it would
2048 encourage people to overwrite it. */
2049 if (*p
== '%' && !main_p
)
2052 while (*p
&& *p
!= '\n')
2058 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2059 && (p1
[sizeof "%include" - 1] == ' '
2060 || p1
[sizeof "%include" - 1] == '\t'))
2064 p1
+= sizeof ("%include");
2065 while (*p1
== ' ' || *p1
== '\t')
2068 if (*p1
++ != '<' || p
[-2] != '>')
2069 fatal ("specs %%include syntax malformed after %ld characters",
2070 (long) (p1
- buffer
+ 1));
2073 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2074 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2077 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2078 && (p1
[sizeof "%include_noerr" - 1] == ' '
2079 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2083 p1
+= sizeof "%include_noerr";
2084 while (*p1
== ' ' || *p1
== '\t')
2087 if (*p1
++ != '<' || p
[-2] != '>')
2088 fatal ("specs %%include syntax malformed after %ld characters",
2089 (long) (p1
- buffer
+ 1));
2092 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2094 read_specs (new_filename
, FALSE
);
2095 else if (verbose_flag
)
2096 notice ("could not find specs file %s\n", p1
);
2099 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2100 && (p1
[sizeof "%rename" - 1] == ' '
2101 || p1
[sizeof "%rename" - 1] == '\t'))
2104 struct spec_list
*sl
;
2105 struct spec_list
*newsl
;
2107 /* Get original name. */
2108 p1
+= sizeof "%rename";
2109 while (*p1
== ' ' || *p1
== '\t')
2112 if (! ISALPHA ((unsigned char) *p1
))
2113 fatal ("specs %%rename syntax malformed after %ld characters",
2114 (long) (p1
- buffer
));
2117 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2120 if (*p2
!= ' ' && *p2
!= '\t')
2121 fatal ("specs %%rename syntax malformed after %ld characters",
2122 (long) (p2
- buffer
));
2126 while (*p2
== ' ' || *p2
== '\t')
2129 if (! ISALPHA ((unsigned char) *p2
))
2130 fatal ("specs %%rename syntax malformed after %ld characters",
2131 (long) (p2
- buffer
));
2133 /* Get new spec name. */
2135 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2139 fatal ("specs %%rename syntax malformed after %ld characters",
2140 (long) (p3
- buffer
));
2143 for (sl
= specs
; sl
; sl
= sl
->next
)
2144 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2148 fatal ("specs %s spec was not found to be renamed", p1
);
2150 if (strcmp (p1
, p2
) == 0)
2153 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2154 if (strcmp (newsl
->name
, p2
) == 0)
2155 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2160 notice ("rename spec %s to %s\n", p1
, p2
);
2162 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2166 set_spec (p2
, *(sl
->ptr_spec
));
2168 free ((void *) *(sl
->ptr_spec
));
2170 *(sl
->ptr_spec
) = "";
2175 fatal ("specs unknown %% command after %ld characters",
2176 (long) (p1
- buffer
));
2179 /* Find the colon that should end the suffix. */
2181 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2184 /* The colon shouldn't be missing. */
2186 fatal ("specs file malformed after %ld characters",
2187 (long) (p1
- buffer
));
2189 /* Skip back over trailing whitespace. */
2191 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2194 /* Copy the suffix to a string. */
2195 suffix
= save_string (p
, p2
- p
);
2196 /* Find the next line. */
2197 p
= skip_whitespace (p1
+ 1);
2199 fatal ("specs file malformed after %ld characters",
2200 (long) (p
- buffer
));
2203 /* Find next blank line or end of string. */
2204 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2207 /* Specs end at the blank line and do not include the newline. */
2208 spec
= save_string (p
, p1
- p
);
2211 /* Delete backslash-newline sequences from the spec. */
2216 if (in
[0] == '\\' && in
[1] == '\n')
2218 else if (in
[0] == '#')
2219 while (*in
&& *in
!= '\n')
2227 if (suffix
[0] == '*')
2229 if (! strcmp (suffix
, "*link_command"))
2230 link_command_spec
= spec
;
2232 set_spec (suffix
+ 1, spec
);
2236 /* Add this pair to the vector. */
2238 = xrealloc (compilers
,
2239 (n_compilers
+ 2) * sizeof (struct compiler
));
2241 compilers
[n_compilers
].suffix
= suffix
;
2242 compilers
[n_compilers
].spec
= spec
;
2244 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2248 link_command_spec
= spec
;
2251 if (link_command_spec
== 0)
2252 fatal ("spec file has no spec for linking");
2255 /* Record the names of temporary files we tell compilers to write,
2256 and delete them at the end of the run. */
2258 /* This is the common prefix we use to make temp file names.
2259 It is chosen once for each run of this program.
2260 It is substituted into a spec by %g or %j.
2261 Thus, all temp file names contain this prefix.
2262 In practice, all temp file names start with this prefix.
2264 This prefix comes from the envvar TMPDIR if it is defined;
2265 otherwise, from the P_tmpdir macro if that is defined;
2266 otherwise, in /usr/tmp or /tmp;
2267 or finally the current directory if all else fails. */
2269 static const char *temp_filename
;
2271 /* Length of the prefix. */
2273 static int temp_filename_length
;
2275 /* Define the list of temporary files to delete. */
2280 struct temp_file
*next
;
2283 /* Queue of files to delete on success or failure of compilation. */
2284 static struct temp_file
*always_delete_queue
;
2285 /* Queue of files to delete on failure of compilation. */
2286 static struct temp_file
*failure_delete_queue
;
2288 /* Record FILENAME as a file to be deleted automatically.
2289 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2290 otherwise delete it in any case.
2291 FAIL_DELETE nonzero means delete it if a compilation step fails;
2292 otherwise delete it in any case. */
2295 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2297 char *const name
= xstrdup (filename
);
2301 struct temp_file
*temp
;
2302 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2303 if (! strcmp (name
, temp
->name
))
2306 temp
= XNEW (struct temp_file
);
2307 temp
->next
= always_delete_queue
;
2309 always_delete_queue
= temp
;
2316 struct temp_file
*temp
;
2317 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2318 if (! strcmp (name
, temp
->name
))
2321 temp
= XNEW (struct temp_file
);
2322 temp
->next
= failure_delete_queue
;
2324 failure_delete_queue
= temp
;
2330 /* Delete all the temporary files whose names we previously recorded. */
2332 #ifndef DELETE_IF_ORDINARY
2333 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2336 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2337 if (unlink (NAME) < 0) \
2339 perror_with_name (NAME); \
2344 delete_if_ordinary (const char *name
)
2350 printf ("Delete %s? (y or n) ", name
);
2354 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2357 if (i
== 'y' || i
== 'Y')
2359 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2363 delete_temp_files (void)
2365 struct temp_file
*temp
;
2367 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2368 delete_if_ordinary (temp
->name
);
2369 always_delete_queue
= 0;
2372 /* Delete all the files to be deleted on error. */
2375 delete_failure_queue (void)
2377 struct temp_file
*temp
;
2379 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2380 delete_if_ordinary (temp
->name
);
2384 clear_failure_queue (void)
2386 failure_delete_queue
= 0;
2389 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2391 If DO_MULTI is true iterate over the paths twice, first with multilib
2392 suffix then without, otherwise iterate over the paths once without
2393 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2394 to avoid visiting the same path twice, but we could do better. For
2395 instance, /usr/lib/../lib is considered different from /usr/lib.
2396 At least EXTRA_SPACE chars past the end of the path passed to
2397 CALLBACK are available for use by the callback.
2398 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2400 Returns the value returned by CALLBACK. */
2403 for_each_path (const struct path_prefix
*paths
,
2406 void *(*callback
) (char *, void *),
2407 void *callback_info
)
2409 struct prefix_list
*pl
;
2410 const char *multi_dir
= NULL
;
2411 const char *multi_os_dir
= NULL
;
2412 const char *multi_suffix
;
2413 const char *just_multi_suffix
;
2416 bool skip_multi_dir
= false;
2417 bool skip_multi_os_dir
= false;
2419 multi_suffix
= machine_suffix
;
2420 just_multi_suffix
= just_machine_suffix
;
2421 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2423 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2424 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2425 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2427 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2428 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2432 size_t multi_dir_len
= 0;
2433 size_t multi_os_dir_len
= 0;
2435 size_t just_suffix_len
;
2439 multi_dir_len
= strlen (multi_dir
);
2441 multi_os_dir_len
= strlen (multi_os_dir
);
2442 suffix_len
= strlen (multi_suffix
);
2443 just_suffix_len
= strlen (just_multi_suffix
);
2447 len
= paths
->max_len
+ extra_space
+ 1;
2448 if (suffix_len
> multi_os_dir_len
)
2451 len
+= multi_os_dir_len
;
2452 path
= XNEWVEC (char, len
);
2455 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2457 len
= strlen (pl
->prefix
);
2458 memcpy (path
, pl
->prefix
, len
);
2460 /* Look first in MACHINE/VERSION subdirectory. */
2461 if (!skip_multi_dir
)
2463 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2464 ret
= callback (path
, callback_info
);
2469 /* Some paths are tried with just the machine (ie. target)
2470 subdir. This is used for finding as, ld, etc. */
2472 && pl
->require_machine_suffix
== 2)
2474 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2475 ret
= callback (path
, callback_info
);
2480 /* Now try the base path. */
2481 if (!pl
->require_machine_suffix
2482 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2484 const char *this_multi
;
2485 size_t this_multi_len
;
2487 if (pl
->os_multilib
)
2489 this_multi
= multi_os_dir
;
2490 this_multi_len
= multi_os_dir_len
;
2494 this_multi
= multi_dir
;
2495 this_multi_len
= multi_dir_len
;
2499 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2503 ret
= callback (path
, callback_info
);
2511 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2514 /* Run through the paths again, this time without multilibs.
2515 Don't repeat any we have already seen. */
2518 free ((char *) multi_dir
);
2520 free ((char *) multi_suffix
);
2521 multi_suffix
= machine_suffix
;
2522 free ((char *) just_multi_suffix
);
2523 just_multi_suffix
= just_machine_suffix
;
2526 skip_multi_dir
= true;
2529 free ((char *) multi_os_dir
);
2530 multi_os_dir
= NULL
;
2533 skip_multi_os_dir
= true;
2538 free ((char *) multi_dir
);
2539 free ((char *) multi_suffix
);
2540 free ((char *) just_multi_suffix
);
2543 free ((char *) multi_os_dir
);
2549 /* Callback for build_search_list. Adds path to obstack being built. */
2551 struct add_to_obstack_info
{
2558 add_to_obstack (char *path
, void *data
)
2560 struct add_to_obstack_info
*info
= data
;
2562 if (info
->check_dir
&& !is_directory (path
, false))
2565 if (!info
->first_time
)
2566 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2568 obstack_grow (info
->ob
, path
, strlen (path
));
2570 info
->first_time
= false;
2574 /* Build a list of search directories from PATHS.
2575 PREFIX is a string to prepend to the list.
2576 If CHECK_DIR_P is true we ensure the directory exists.
2577 If DO_MULTI is true, multilib paths are output first, then
2579 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2580 It is also used by the --print-search-dirs flag. */
2583 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2584 bool check_dir
, bool do_multi
)
2586 struct add_to_obstack_info info
;
2588 info
.ob
= &collect_obstack
;
2589 info
.check_dir
= check_dir
;
2590 info
.first_time
= true;
2592 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2593 obstack_1grow (&collect_obstack
, '=');
2595 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2597 obstack_1grow (&collect_obstack
, '\0');
2598 return XOBFINISH (&collect_obstack
, char *);
2601 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2605 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2608 putenv (build_search_list (paths
, env_var
, true, do_multi
));
2611 /* Check whether NAME can be accessed in MODE. This is like access,
2612 except that it never considers directories to be executable. */
2615 access_check (const char *name
, int mode
)
2621 if (stat (name
, &st
) < 0
2622 || S_ISDIR (st
.st_mode
))
2626 return access (name
, mode
);
2629 /* Callback for find_a_file. Appends the file name to the directory
2630 path. If the resulting file exists in the right mode, return the
2631 full pathname to the file. */
2633 struct file_at_path_info
{
2642 file_at_path (char *path
, void *data
)
2644 struct file_at_path_info
*info
= data
;
2645 size_t len
= strlen (path
);
2647 memcpy (path
+ len
, info
->name
, info
->name_len
);
2648 len
+= info
->name_len
;
2650 /* Some systems have a suffix for executable files.
2651 So try appending that first. */
2652 if (info
->suffix_len
)
2654 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2655 if (access_check (path
, info
->mode
) == 0)
2660 if (access_check (path
, info
->mode
) == 0)
2666 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2667 access to check permissions. If DO_MULTI is true, search multilib
2668 paths then non-multilib paths, otherwise do not search multilib paths.
2669 Return 0 if not found, otherwise return its name, allocated with malloc. */
2672 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2675 struct file_at_path_info info
;
2677 #ifdef DEFAULT_ASSEMBLER
2678 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2679 return xstrdup (DEFAULT_ASSEMBLER
);
2682 #ifdef DEFAULT_LINKER
2683 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2684 return xstrdup (DEFAULT_LINKER
);
2687 /* Determine the filename to execute (special case for absolute paths). */
2689 if (IS_ABSOLUTE_PATH (name
))
2691 if (access (name
, mode
) == 0)
2692 return xstrdup (name
);
2698 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2699 info
.name_len
= strlen (info
.name
);
2700 info
.suffix_len
= strlen (info
.suffix
);
2703 return for_each_path (pprefix
, do_multi
, info
.name_len
+ info
.suffix_len
,
2704 file_at_path
, &info
);
2707 /* Ranking of prefixes in the sort list. -B prefixes are put before
2710 enum path_prefix_priority
2712 PREFIX_PRIORITY_B_OPT
,
2713 PREFIX_PRIORITY_LAST
2716 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2717 order according to PRIORITY. Within each PRIORITY, new entries are
2720 If WARN is nonzero, we will warn if no file is found
2721 through this prefix. WARN should point to an int
2722 which will be set to 1 if this entry is used.
2724 COMPONENT is the value to be passed to update_path.
2726 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2727 the complete value of machine_suffix.
2728 2 means try both machine_suffix and just_machine_suffix. */
2731 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2732 const char *component
, /* enum prefix_priority */ int priority
,
2733 int require_machine_suffix
, int os_multilib
)
2735 struct prefix_list
*pl
, **prev
;
2738 for (prev
= &pprefix
->plist
;
2739 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2740 prev
= &(*prev
)->next
)
2743 /* Keep track of the longest prefix. */
2745 prefix
= update_path (prefix
, component
);
2746 len
= strlen (prefix
);
2747 if (len
> pprefix
->max_len
)
2748 pprefix
->max_len
= len
;
2750 pl
= XNEW (struct prefix_list
);
2751 pl
->prefix
= prefix
;
2752 pl
->require_machine_suffix
= require_machine_suffix
;
2753 pl
->priority
= priority
;
2754 pl
->os_multilib
= os_multilib
;
2756 /* Insert after PREV. */
2761 /* Same as add_prefix, but prepending target_system_root to prefix. */
2762 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2764 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2765 const char *component
,
2766 /* enum prefix_priority */ int priority
,
2767 int require_machine_suffix
, int os_multilib
)
2769 if (!IS_ABSOLUTE_PATH (prefix
))
2770 fatal ("system path '%s' is not absolute", prefix
);
2772 if (target_system_root
)
2774 if (target_sysroot_suffix
)
2775 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2776 prefix
= concat (target_system_root
, prefix
, NULL
);
2778 /* We have to override this because GCC's notion of sysroot
2779 moves along with GCC. */
2783 add_prefix (pprefix
, prefix
, component
, priority
,
2784 require_machine_suffix
, os_multilib
);
2787 /* Execute the command specified by the arguments on the current line of spec.
2788 When using pipes, this includes several piped-together commands
2789 with `|' between them.
2791 Return 0 if successful, -1 if failed. */
2797 int n_commands
; /* # of command. */
2799 struct pex_obj
*pex
;
2802 const char *prog
; /* program name. */
2803 const char **argv
; /* vector of args. */
2806 struct command
*commands
; /* each command buffer with above info. */
2808 gcc_assert (!processing_spec_function
);
2810 /* Count # of piped commands. */
2811 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2812 if (strcmp (argbuf
[i
], "|") == 0)
2815 /* Get storage for each command. */
2816 commands
= alloca (n_commands
* sizeof (struct command
));
2818 /* Split argbuf into its separate piped processes,
2819 and record info about each one.
2820 Also search for the programs that are to be run. */
2822 commands
[0].prog
= argbuf
[0]; /* first command. */
2823 commands
[0].argv
= &argbuf
[0];
2824 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2827 commands
[0].argv
[0] = string
;
2829 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2830 if (strcmp (argbuf
[i
], "|") == 0)
2831 { /* each command. */
2832 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2833 fatal ("-pipe not supported");
2835 argbuf
[i
] = 0; /* termination of command args. */
2836 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2837 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2838 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2841 commands
[n_commands
].argv
[0] = string
;
2845 argbuf
[argbuf_index
] = 0;
2847 /* If -v, print what we are about to do, and maybe query. */
2851 /* For help listings, put a blank line between sub-processes. */
2852 if (print_help_list
)
2853 fputc ('\n', stderr
);
2855 /* Print each piped command as a separate line. */
2856 for (i
= 0; i
< n_commands
; i
++)
2858 const char *const *j
;
2860 if (verbose_only_flag
)
2862 for (j
= commands
[i
].argv
; *j
; j
++)
2865 fprintf (stderr
, " \"");
2866 for (p
= *j
; *p
; ++p
)
2868 if (*p
== '"' || *p
== '\\' || *p
== '$')
2869 fputc ('\\', stderr
);
2872 fputc ('"', stderr
);
2876 for (j
= commands
[i
].argv
; *j
; j
++)
2877 fprintf (stderr
, " %s", *j
);
2879 /* Print a pipe symbol after all but the last command. */
2880 if (i
+ 1 != n_commands
)
2881 fprintf (stderr
, " |");
2882 fprintf (stderr
, "\n");
2885 if (verbose_only_flag
!= 0)
2887 /* verbose_only_flag should act as if the spec was
2888 executed, so increment execution_count before
2889 returning. This prevents spurious warnings about
2890 unused linker input files, etc. */
2895 notice ("\nGo ahead? (y or n) ");
2899 while (getchar () != '\n')
2902 if (i
!= 'y' && i
!= 'Y')
2907 #ifdef ENABLE_VALGRIND_CHECKING
2908 /* Run the each command through valgrind. To simplify prepending the
2909 path to valgrind and the option "-q" (for quiet operation unless
2910 something triggers), we allocate a separate argv array. */
2912 for (i
= 0; i
< n_commands
; i
++)
2918 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2921 argv
= alloca ((argc
+ 3) * sizeof (char *));
2923 argv
[0] = VALGRIND_PATH
;
2925 for (j
= 2; j
< argc
+ 2; j
++)
2926 argv
[j
] = commands
[i
].argv
[j
- 2];
2929 commands
[i
].argv
= argv
;
2930 commands
[i
].prog
= argv
[0];
2934 /* Run each piped subprocess. */
2936 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2937 programname
, temp_filename
);
2939 pfatal_with_name (_("pex_init failed"));
2941 for (i
= 0; i
< n_commands
; i
++)
2945 const char *string
= commands
[i
].argv
[0];
2947 errmsg
= pex_run (pex
,
2948 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2949 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2950 string
, (char * const *) commands
[i
].argv
,
2959 pfatal_with_name (errmsg
);
2963 if (string
!= commands
[i
].prog
)
2964 free ((void *) string
);
2969 /* Wait for all the subprocesses to finish. */
2973 struct pex_time
*times
= NULL
;
2976 statuses
= alloca (n_commands
* sizeof (int));
2977 if (!pex_get_status (pex
, n_commands
, statuses
))
2978 pfatal_with_name (_("failed to get exit status"));
2982 times
= alloca (n_commands
* sizeof (struct pex_time
));
2983 if (!pex_get_times (pex
, n_commands
, times
))
2984 pfatal_with_name (_("failed to get process times"));
2989 for (i
= 0; i
< n_commands
; ++i
)
2991 int status
= statuses
[i
];
2993 if (WIFSIGNALED (status
))
2996 /* SIGPIPE is a special case. It happens in -pipe mode
2997 when the compiler dies before the preprocessor is done,
2998 or the assembler dies before the compiler is done.
2999 There's generally been an error already, and this is
3000 just fallout. So don't generate another error unless
3001 we would otherwise have succeeded. */
3002 if (WTERMSIG (status
) == SIGPIPE
3003 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3011 Internal error: %s (program %s)\n\
3012 Please submit a full bug report.\n\
3013 See %s for instructions.",
3014 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3017 else if (WIFEXITED (status
)
3018 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3020 if (WEXITSTATUS (status
) > greatest_status
)
3021 greatest_status
= WEXITSTATUS (status
);
3027 struct pex_time
*pt
= ×
[i
];
3030 ut
= ((double) pt
->user_seconds
3031 + (double) pt
->user_microseconds
/ 1.0e6
);
3032 st
= ((double) pt
->system_seconds
3033 + (double) pt
->system_microseconds
/ 1.0e6
);
3036 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3044 /* Find all the switches given to us
3045 and make a vector describing them.
3046 The elements of the vector are strings, one per switch given.
3047 If a switch uses following arguments, then the `part1' field
3048 is the switch itself and the `args' field
3049 is a null-terminated vector containing the following arguments.
3050 The `live_cond' field is:
3052 1 if the switch is true in a conditional spec,
3053 -1 if false (overridden by a later switch)
3054 -2 if this switch should be ignored (used in %<S)
3055 The `validated' field is nonzero if any spec has looked at this switch;
3056 if it remains zero at the end of the run, it must be meaningless. */
3059 #define SWITCH_FALSE -1
3060 #define SWITCH_IGNORE -2
3061 #define SWITCH_LIVE 1
3068 unsigned char validated
;
3069 unsigned char ordering
;
3072 static struct switchstr
*switches
;
3074 static int n_switches
;
3076 /* Language is one of three things:
3078 1) The name of a real programming language.
3079 2) NULL, indicating that no one has figured out
3081 3) '*', indicating that the file should be passed
3086 const char *language
;
3087 struct compiler
*incompiler
;
3092 /* Also a vector of input files specified. */
3094 static struct infile
*infiles
;
3098 /* True if multiple input files are being compiled to a single
3101 static bool combine_inputs
;
3103 /* This counts the number of libraries added by lang_specific_driver, so that
3104 we can tell if there were any user supplied any files or libraries. */
3106 static int added_libraries
;
3108 /* And a vector of corresponding output files is made up later. */
3110 const char **outfiles
;
3112 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3114 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3115 is true if we should look for an executable suffix. DO_OBJ
3116 is true if we should look for an object suffix. */
3119 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3120 int do_obj ATTRIBUTE_UNUSED
)
3122 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3130 len
= strlen (name
);
3132 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3133 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3134 if (do_obj
&& len
> 2
3135 && name
[len
- 2] == '.'
3136 && name
[len
- 1] == 'o')
3138 obstack_grow (&obstack
, name
, len
- 2);
3139 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3140 name
= XOBFINISH (&obstack
, const char *);
3144 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3145 /* If there is no filetype, make it the executable suffix (which includes
3146 the "."). But don't get confused if we have just "-o". */
3147 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3150 for (i
= len
- 1; i
>= 0; i
--)
3151 if (IS_DIR_SEPARATOR (name
[i
]))
3154 for (i
++; i
< len
; i
++)
3158 obstack_grow (&obstack
, name
, len
);
3159 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3160 strlen (TARGET_EXECUTABLE_SUFFIX
));
3161 name
= XOBFINISH (&obstack
, const char *);
3168 /* Display the command line switches accepted by gcc. */
3172 printf (_("Usage: %s [options] file...\n"), programname
);
3173 fputs (_("Options:\n"), stdout
);
3175 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3176 fputs (_(" --help Display this information\n"), stdout
);
3177 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3178 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3179 fputs (_(" Display specific types of command line options\n"), stdout
);
3181 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3182 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3183 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3184 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3185 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3186 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3187 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3188 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3189 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3191 -print-multi-lib Display the mapping between command line options and\n\
3192 multiple library search directories\n"), stdout
);
3193 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3194 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3195 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3196 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3197 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3198 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3199 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3200 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3201 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3202 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3203 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3204 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3205 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3207 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3208 and libraries\n"), stdout
);
3209 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3210 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3211 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3212 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3213 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3214 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3215 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3216 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3217 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3219 -x <language> Specify the language of the following input files\n\
3220 Permissible languages include: c c++ assembler none\n\
3221 'none' means revert to the default behavior of\n\
3222 guessing the language based on the file's extension\n\
3226 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3227 passed on to the various sub-processes invoked by %s. In order to pass\n\
3228 other options on to these processes the -W<letter> options must be used.\n\
3231 /* The rest of the options are displayed by invocations of the various
3236 add_preprocessor_option (const char *option
, int len
)
3238 n_preprocessor_options
++;
3240 if (! preprocessor_options
)
3241 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3243 preprocessor_options
= xrealloc (preprocessor_options
,
3244 n_preprocessor_options
* sizeof (char *));
3246 preprocessor_options
[n_preprocessor_options
- 1] =
3247 save_string (option
, len
);
3251 add_assembler_option (const char *option
, int len
)
3253 n_assembler_options
++;
3255 if (! assembler_options
)
3256 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3258 assembler_options
= xrealloc (assembler_options
,
3259 n_assembler_options
* sizeof (char *));
3261 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3265 add_linker_option (const char *option
, int len
)
3269 if (! linker_options
)
3270 linker_options
= XNEWVEC (char *, n_linker_options
);
3272 linker_options
= xrealloc (linker_options
,
3273 n_linker_options
* sizeof (char *));
3275 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3278 /* Create the vector `switches' and its contents.
3279 Store its length in `n_switches'. */
3282 process_command (int argc
, const char **argv
)
3287 const char *spec_lang
= 0;
3288 int last_language_n_infiles
;
3289 int lang_n_infiles
= 0;
3290 #ifdef MODIFY_TARGET_NAME
3291 int is_modify_target_name
;
3294 const char *tooldir_prefix
;
3296 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3300 added_libraries
= 0;
3302 /* Figure compiler version from version string. */
3304 compiler_version
= temp1
= xstrdup (version_string
);
3306 for (; *temp1
; ++temp1
)
3315 /* If there is a -V or -b option (or both), process it now, before
3316 trying to interpret the rest of the command line.
3317 Use heuristic that all configuration names must have at least
3318 one dash '-'. This allows us to pass options starting with -b. */
3319 if (argc
> 1 && argv
[1][0] == '-'
3320 && (argv
[1][1] == 'V' ||
3321 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3323 const char *new_version
= DEFAULT_TARGET_VERSION
;
3324 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3325 const char *progname
= argv
[0];
3330 while (argc
> 1 && argv
[1][0] == '-'
3331 && (argv
[1][1] == 'V' ||
3332 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3334 char opt
= argv
[1][1];
3336 if (argv
[1][2] != '\0')
3349 fatal ("'-%c' option must have argument", opt
);
3356 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3357 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3359 new_argv0
= xmemdup (progname
, baselen
,
3360 baselen
+ concat_length (new_version
, new_machine
,
3361 "-gcc-", NULL
) + 1);
3362 strcpy (new_argv0
+ baselen
, new_machine
);
3363 strcat (new_argv0
, "-gcc-");
3364 strcat (new_argv0
, new_version
);
3366 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3367 (argc
+ 1) * sizeof (argv
[0]));
3368 new_argv
[0] = new_argv0
;
3370 execvp (new_argv0
, new_argv
);
3371 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3374 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3375 see if we can create it from the pathname specified in argv[0]. */
3377 gcc_libexec_prefix
= standard_libexec_prefix
;
3379 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3380 if (!gcc_exec_prefix
)
3382 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3383 standard_exec_prefix
);
3384 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3385 standard_bindir_prefix
,
3386 standard_libexec_prefix
);
3387 if (gcc_exec_prefix
)
3388 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3392 /* make_relative_prefix requires a program name, but
3393 GCC_EXEC_PREFIX is typically a directory name with a trailing
3394 / (which is ignored by make_relative_prefix), so append a
3396 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3397 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3398 standard_exec_prefix
,
3399 standard_libexec_prefix
);
3401 /* The path is unrelocated, so fallback to the original setting. */
3402 if (!gcc_libexec_prefix
)
3403 gcc_libexec_prefix
= standard_libexec_prefix
;
3409 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3410 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3411 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3413 if (gcc_exec_prefix
)
3415 int len
= strlen (gcc_exec_prefix
);
3417 if (len
> (int) sizeof ("/lib/gcc/") - 1
3418 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3420 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3421 if (IS_DIR_SEPARATOR (*temp
)
3422 && strncmp (temp
+ 1, "lib", 3) == 0
3423 && IS_DIR_SEPARATOR (temp
[4])
3424 && strncmp (temp
+ 5, "gcc", 3) == 0)
3425 len
-= sizeof ("/lib/gcc/") - 1;
3428 set_std_prefix (gcc_exec_prefix
, len
);
3429 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3430 PREFIX_PRIORITY_LAST
, 0, 0);
3431 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3432 PREFIX_PRIORITY_LAST
, 0, 0);
3435 /* COMPILER_PATH and LIBRARY_PATH have values
3436 that are lists of directory names with colons. */
3438 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3441 const char *startp
, *endp
;
3442 char *nstore
= alloca (strlen (temp
) + 3);
3444 startp
= endp
= temp
;
3447 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3449 strncpy (nstore
, startp
, endp
- startp
);
3451 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3452 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3454 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3455 nstore
[endp
- startp
+ 1] = 0;
3458 nstore
[endp
- startp
] = 0;
3459 add_prefix (&exec_prefixes
, nstore
, 0,
3460 PREFIX_PRIORITY_LAST
, 0, 0);
3461 add_prefix (&include_prefixes
, nstore
, 0,
3462 PREFIX_PRIORITY_LAST
, 0, 0);
3465 endp
= startp
= endp
+ 1;
3472 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3473 if (temp
&& *cross_compile
== '0')
3475 const char *startp
, *endp
;
3476 char *nstore
= alloca (strlen (temp
) + 3);
3478 startp
= endp
= temp
;
3481 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3483 strncpy (nstore
, startp
, endp
- startp
);
3485 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3486 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3488 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3489 nstore
[endp
- startp
+ 1] = 0;
3492 nstore
[endp
- startp
] = 0;
3493 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3494 PREFIX_PRIORITY_LAST
, 0, 1);
3497 endp
= startp
= endp
+ 1;
3504 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3505 GET_ENVIRONMENT (temp
, "LPATH");
3506 if (temp
&& *cross_compile
== '0')
3508 const char *startp
, *endp
;
3509 char *nstore
= alloca (strlen (temp
) + 3);
3511 startp
= endp
= temp
;
3514 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3516 strncpy (nstore
, startp
, endp
- startp
);
3518 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3519 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3521 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3522 nstore
[endp
- startp
+ 1] = 0;
3525 nstore
[endp
- startp
] = 0;
3526 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3527 PREFIX_PRIORITY_LAST
, 0, 1);
3530 endp
= startp
= endp
+ 1;
3537 /* Convert new-style -- options to old-style. */
3538 translate_options (&argc
, (const char *const **) &argv
);
3540 /* Do language-specific adjustment/addition of flags. */
3541 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3543 /* Scan argv twice. Here, the first time, just count how many switches
3544 there will be in their vector, and how many input files in theirs.
3545 Here we also parse the switches that cc itself uses (e.g. -v). */
3547 for (i
= 1; i
< argc
; i
++)
3549 if (! strcmp (argv
[i
], "-dumpspecs"))
3551 struct spec_list
*sl
;
3553 for (sl
= specs
; sl
; sl
= sl
->next
)
3554 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3555 if (link_command_spec
)
3556 printf ("*link_command:\n%s\n\n", link_command_spec
);
3559 else if (! strcmp (argv
[i
], "-dumpversion"))
3561 printf ("%s\n", spec_version
);
3564 else if (! strcmp (argv
[i
], "-dumpmachine"))
3566 printf ("%s\n", spec_machine
);
3569 else if (strcmp (argv
[i
], "-fversion") == 0)
3571 /* translate_options () has turned --version into -fversion. */
3572 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3573 printf ("Copyright %s 2006 Free Software Foundation, Inc.\n",
3575 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3576 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3580 else if (strcmp (argv
[i
], "-fhelp") == 0)
3582 /* translate_options () has turned --help into -fhelp. */
3583 print_help_list
= 1;
3585 /* We will be passing a dummy file on to the sub-processes. */
3589 /* CPP driver cannot obtain switch from cc1_options. */
3591 add_preprocessor_option ("--help", 6);
3592 add_assembler_option ("--help", 6);
3593 add_linker_option ("--help", 6);
3595 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3597 /* translate_options () has turned --help into -fhelp. */
3598 print_subprocess_help
= 2;
3600 /* We will be passing a dummy file on to the sub-processes. */
3604 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3606 /* translate_options() has turned --target-help into -ftarget-help. */
3607 print_subprocess_help
= 1;
3609 /* We will be passing a dummy file on to the sub-processes. */
3613 /* CPP driver cannot obtain switch from cc1_options. */
3615 add_preprocessor_option ("--target-help", 13);
3616 add_assembler_option ("--target-help", 13);
3617 add_linker_option ("--target-help", 13);
3619 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3621 pass_exit_codes
= 1;
3624 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3625 print_search_dirs
= 1;
3626 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3627 print_file_name
= "libgcc.a";
3628 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3629 print_file_name
= argv
[i
] + 17;
3630 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3631 print_prog_name
= argv
[i
] + 17;
3632 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3633 print_multi_lib
= 1;
3634 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3635 print_multi_directory
= 1;
3636 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3637 print_multi_os_directory
= 1;
3638 else if (! strncmp (argv
[i
], "-Wa,", 4))
3641 /* Pass the rest of this option to the assembler. */
3643 /* Split the argument at commas. */
3645 for (j
= 4; argv
[i
][j
]; j
++)
3646 if (argv
[i
][j
] == ',')
3648 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3652 /* Record the part after the last comma. */
3653 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3655 else if (! strncmp (argv
[i
], "-Wp,", 4))
3658 /* Pass the rest of this option to the preprocessor. */
3660 /* Split the argument at commas. */
3662 for (j
= 4; argv
[i
][j
]; j
++)
3663 if (argv
[i
][j
] == ',')
3665 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3669 /* Record the part after the last comma. */
3670 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3672 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3673 /* The +e options to the C++ front-end. */
3675 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3678 /* Split the argument at commas. */
3679 for (j
= 3; argv
[i
][j
]; j
++)
3680 n_infiles
+= (argv
[i
][j
] == ',');
3682 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3685 fatal ("argument to '-Xlinker' is missing");
3690 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3693 fatal ("argument to '-Xpreprocessor' is missing");
3695 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3697 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3700 fatal ("argument to '-Xassembler' is missing");
3702 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3704 else if (strcmp (argv
[i
], "-l") == 0)
3707 fatal ("argument to '-l' is missing");
3712 else if (strncmp (argv
[i
], "-l", 2) == 0)
3714 else if (strcmp (argv
[i
], "-save-temps") == 0)
3716 save_temps_flag
= 1;
3719 else if (strcmp (argv
[i
], "-combine") == 0)
3724 else if (strcmp (argv
[i
], "-specs") == 0)
3726 struct user_specs
*user
= XNEW (struct user_specs
);
3728 fatal ("argument to '-specs' is missing");
3730 user
->next
= (struct user_specs
*) 0;
3731 user
->filename
= argv
[i
];
3732 if (user_specs_tail
)
3733 user_specs_tail
->next
= user
;
3735 user_specs_head
= user
;
3736 user_specs_tail
= user
;
3738 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3740 struct user_specs
*user
= XNEW (struct user_specs
);
3741 if (strlen (argv
[i
]) == 7)
3742 fatal ("argument to '-specs=' is missing");
3744 user
->next
= (struct user_specs
*) 0;
3745 user
->filename
= argv
[i
] + 7;
3746 if (user_specs_tail
)
3747 user_specs_tail
->next
= user
;
3749 user_specs_head
= user
;
3750 user_specs_tail
= user
;
3752 else if (strcmp (argv
[i
], "-time") == 0)
3754 else if (strcmp (argv
[i
], "-pipe") == 0)
3756 /* -pipe has to go into the switches array as well as
3761 else if (strcmp (argv
[i
], "-###") == 0)
3763 /* This is similar to -v except that there is no execution
3764 of the commands and the echoed arguments are quoted. It
3765 is intended for use in shell scripts to capture the
3766 driver-generated command line. */
3767 verbose_only_flag
++;
3770 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3772 const char *p
= &argv
[i
][1];
3778 if (NULL
== strchr(argv
[i
] + 2, '-'))
3783 fatal ("'-%c' must come at the start of the command line", c
);
3791 if (p
[1] == 0 && i
+ 1 == argc
)
3792 fatal ("argument to '-B' is missing");
3798 len
= strlen (value
);
3800 /* Catch the case where the user has forgotten to append a
3801 directory separator to the path. Note, they may be using
3802 -B to add an executable name prefix, eg "i386-elf-", in
3803 order to distinguish between multiple installations of
3804 GCC in the same directory. Hence we must check to see
3805 if appending a directory separator actually makes a
3806 valid directory name. */
3807 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3808 && is_directory (value
, false))
3810 char *tmp
= XNEWVEC (char, len
+ 2);
3811 strcpy (tmp
, value
);
3812 tmp
[len
] = DIR_SEPARATOR
;
3817 /* As a kludge, if the arg is "[foo/]stageN/", just
3818 add "[foo/]include" to the include prefix. */
3821 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3822 && strncmp (value
+ len
- 7, "stage", 5) == 0
3823 && ISDIGIT (value
[len
- 2])
3824 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3827 add_prefix (&include_prefixes
, "./", NULL
,
3828 PREFIX_PRIORITY_B_OPT
, 0, 0);
3831 char *string
= xmalloc (len
- 6);
3832 memcpy (string
, value
, len
- 7);
3833 string
[len
- 7] = 0;
3834 add_prefix (&include_prefixes
, string
, NULL
,
3835 PREFIX_PRIORITY_B_OPT
, 0, 0);
3839 add_prefix (&exec_prefixes
, value
, NULL
,
3840 PREFIX_PRIORITY_B_OPT
, 0, 0);
3841 add_prefix (&startfile_prefixes
, value
, NULL
,
3842 PREFIX_PRIORITY_B_OPT
, 0, 0);
3843 add_prefix (&include_prefixes
, value
, NULL
,
3844 PREFIX_PRIORITY_B_OPT
, 0, 0);
3849 case 'v': /* Print our subcommands and print versions. */
3851 /* If they do anything other than exactly `-v', don't set
3852 verbose_flag; rather, continue on to give the error. */
3870 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3875 /* Forward scan, just in case -S or -c is specified
3882 if (argv
[j
][0] == '-')
3884 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3890 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3891 j
+= skip
- (argv
[j
][2] != 0);
3892 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3899 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3901 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3903 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3910 #ifdef MODIFY_TARGET_NAME
3911 is_modify_target_name
= 0;
3913 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3914 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3916 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3917 + strlen (spec_machine
));
3920 int made_addition
= 0;
3922 is_modify_target_name
= 1;
3923 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3925 if (modify_target
[j
].add_del
== DELETE
3926 && (! strncmp (q
, modify_target
[j
].str
,
3927 strlen (modify_target
[j
].str
))))
3928 p
+= strlen (modify_target
[j
].str
);
3929 else if (modify_target
[j
].add_del
== ADD
3930 && ! made_addition
&& *p
== '-')
3932 for (r
= modify_target
[j
].str
; *r
!= 0; )
3940 spec_machine
= new_name
;
3943 if (is_modify_target_name
)
3949 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3950 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3951 else if (WORD_SWITCH_TAKES_ARG (p
))
3952 i
+= WORD_SWITCH_TAKES_ARG (p
);
3962 if (save_temps_flag
&& use_pipes
)
3964 /* -save-temps overrides -pipe, so that temp files are produced */
3965 if (save_temps_flag
)
3966 error ("warning: -pipe ignored because -save-temps specified");
3970 /* Set up the search paths. We add directories that we expect to
3971 contain GNU Toolchain components before directories specified by
3972 the machine description so that we will find GNU components (like
3973 the GNU assembler) before those of the host system. */
3975 /* If we don't know where the toolchain has been installed, use the
3976 configured-in locations. */
3977 if (!gcc_exec_prefix
)
3980 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3981 PREFIX_PRIORITY_LAST
, 1, 0);
3982 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3983 PREFIX_PRIORITY_LAST
, 2, 0);
3984 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3985 PREFIX_PRIORITY_LAST
, 2, 0);
3987 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3988 PREFIX_PRIORITY_LAST
, 1, 0);
3991 /* If not cross-compiling, search well-known system locations. */
3992 if (*cross_compile
== '0')
3995 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3996 PREFIX_PRIORITY_LAST
, 2, 0);
3997 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3998 PREFIX_PRIORITY_LAST
, 2, 0);
4000 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4001 PREFIX_PRIORITY_LAST
, 1, 0);
4004 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4005 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4006 dir_separator_str
, NULL
);
4008 /* Look for tools relative to the location from which the driver is
4009 running, or, if that is not available, the configured prefix. */
4011 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4012 spec_machine
, dir_separator_str
,
4013 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4015 add_prefix (&exec_prefixes
,
4016 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4017 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4018 add_prefix (&startfile_prefixes
,
4019 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4020 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4022 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4023 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4024 then consider it to relocate with the rest of the GCC installation
4025 if GCC_EXEC_PREFIX is set.
4026 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4027 if (target_system_root
&& gcc_exec_prefix
)
4029 char *tmp_prefix
= make_relative_prefix (argv
[0],
4030 standard_bindir_prefix
,
4031 target_system_root
);
4032 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4034 target_system_root
= tmp_prefix
;
4035 target_system_root_changed
= 1;
4040 /* More prefixes are enabled in main, after we read the specs file
4041 and determine whether this is cross-compilation or not. */
4043 /* Then create the space for the vectors and scan again. */
4045 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4046 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4049 last_language_n_infiles
= -1;
4051 /* This, time, copy the text of each switch and store a pointer
4052 to the copy in the vector of switches.
4053 Store all the infiles in their vector. */
4055 for (i
= 1; i
< argc
; i
++)
4057 /* Just skip the switches that were handled by the preceding loop. */
4058 #ifdef MODIFY_TARGET_NAME
4059 is_modify_target_name
= 0;
4061 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4062 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4063 is_modify_target_name
= 1;
4065 if (is_modify_target_name
)
4069 if (! strncmp (argv
[i
], "-Wa,", 4))
4071 else if (! strncmp (argv
[i
], "-Wp,", 4))
4073 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4075 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4077 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4079 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4081 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4083 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4085 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4087 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4089 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4091 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4092 target_system_root_changed
= 1;
4094 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4096 /* Compensate for the +e options to the C++ front-end;
4097 they're there simply for cfront call-compatibility. We do
4098 some magic in default_compilers to pass them down properly.
4099 Note we deliberately start at the `+' here, to avoid passing
4100 -e0 or -e1 down into the linker. */
4101 switches
[n_switches
].part1
= &argv
[i
][0];
4102 switches
[n_switches
].args
= 0;
4103 switches
[n_switches
].live_cond
= SWITCH_OK
;
4104 switches
[n_switches
].validated
= 0;
4107 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4110 /* Split the argument at commas. */
4112 for (j
= 4; argv
[i
][j
]; j
++)
4113 if (argv
[i
][j
] == ',')
4115 infiles
[n_infiles
].language
= "*";
4116 infiles
[n_infiles
++].name
4117 = save_string (argv
[i
] + prev
, j
- prev
);
4120 /* Record the part after the last comma. */
4121 infiles
[n_infiles
].language
= "*";
4122 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4124 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4126 infiles
[n_infiles
].language
= "*";
4127 infiles
[n_infiles
++].name
= argv
[++i
];
4129 /* Xassembler and Xpreprocessor were already handled in the first argv
4130 scan, so all we need to do here is ignore them and their argument. */
4131 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4133 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4135 else if (strcmp (argv
[i
], "-l") == 0)
4136 { /* POSIX allows separation of -l and the lib arg;
4137 canonicalize by concatenating -l with its arg */
4138 infiles
[n_infiles
].language
= "*";
4139 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4141 else if (strncmp (argv
[i
], "-l", 2) == 0)
4143 infiles
[n_infiles
].language
= "*";
4144 infiles
[n_infiles
++].name
= argv
[i
];
4146 else if (strcmp (argv
[i
], "-specs") == 0)
4148 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4150 else if (strcmp (argv
[i
], "-time") == 0)
4152 else if (strcmp (argv
[i
], "-###") == 0)
4154 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4156 const char *p
= &argv
[i
][1];
4161 if (p
[1] == 0 && i
+ 1 == argc
)
4162 fatal ("argument to '-x' is missing");
4164 spec_lang
= argv
[++i
];
4167 if (! strcmp (spec_lang
, "none"))
4168 /* Suppress the warning if -xnone comes after the last input
4169 file, because alternate command interfaces like g++ might
4170 find it useful to place -xnone after each input file. */
4173 last_language_n_infiles
= n_infiles
;
4176 switches
[n_switches
].part1
= p
;
4177 /* Deal with option arguments in separate argv elements. */
4178 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4179 || WORD_SWITCH_TAKES_ARG (p
))
4182 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4186 /* Count only the option arguments in separate argv elements. */
4187 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4189 if (i
+ n_args
>= argc
)
4190 fatal ("argument to '-%s' is missing", p
);
4191 switches
[n_switches
].args
4192 = XNEWVEC (const char *, n_args
+ 1);
4194 switches
[n_switches
].args
[j
++] = argv
[++i
];
4195 /* Null-terminate the vector. */
4196 switches
[n_switches
].args
[j
] = 0;
4198 else if (strchr (switches_need_spaces
, c
))
4200 /* On some systems, ld cannot handle some options without
4201 a space. So split the option from its argument. */
4202 char *part1
= XNEWVEC (char, 2);
4206 switches
[n_switches
].part1
= part1
;
4207 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4208 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4209 switches
[n_switches
].args
[1] = 0;
4212 switches
[n_switches
].args
= 0;
4214 switches
[n_switches
].live_cond
= SWITCH_OK
;
4215 switches
[n_switches
].validated
= 0;
4216 switches
[n_switches
].ordering
= 0;
4217 /* These are always valid, since gcc.c itself understands them. */
4218 if (!strcmp (p
, "save-temps")
4219 || !strcmp (p
, "static-libgcc")
4220 || !strcmp (p
, "shared-libgcc")
4221 || !strcmp (p
, "pipe"))
4222 switches
[n_switches
].validated
= 1;
4225 char ch
= switches
[n_switches
].part1
[0];
4227 switches
[n_switches
].validated
= 1;
4233 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4234 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4237 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4239 perror_with_name (argv
[i
]);
4244 infiles
[n_infiles
].language
= spec_lang
;
4245 infiles
[n_infiles
++].name
= argv
[i
];
4250 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4251 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4253 /* Ensure we only invoke each subprocess once. */
4254 if (print_subprocess_help
|| print_help_list
)
4258 /* Create a dummy input file, so that we can pass
4259 the help option on to the various sub-processes. */
4260 infiles
[0].language
= "c";
4261 infiles
[0].name
= "help-dummy";
4264 switches
[n_switches
].part1
= 0;
4265 infiles
[n_infiles
].name
= 0;
4268 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4269 and place that in the environment. */
4272 set_collect_gcc_options (void)
4277 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4279 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4280 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4283 for (i
= 0; (int) i
< n_switches
; i
++)
4285 const char *const *args
;
4288 obstack_grow (&collect_obstack
, " ", 1);
4292 /* Ignore elided switches. */
4293 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4296 obstack_grow (&collect_obstack
, "'-", 2);
4297 q
= switches
[i
].part1
;
4298 while ((p
= strchr (q
, '\'')))
4300 obstack_grow (&collect_obstack
, q
, p
- q
);
4301 obstack_grow (&collect_obstack
, "'\\''", 4);
4304 obstack_grow (&collect_obstack
, q
, strlen (q
));
4305 obstack_grow (&collect_obstack
, "'", 1);
4307 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4309 obstack_grow (&collect_obstack
, " '", 2);
4311 while ((p
= strchr (q
, '\'')))
4313 obstack_grow (&collect_obstack
, q
, p
- q
);
4314 obstack_grow (&collect_obstack
, "'\\''", 4);
4317 obstack_grow (&collect_obstack
, q
, strlen (q
));
4318 obstack_grow (&collect_obstack
, "'", 1);
4321 obstack_grow (&collect_obstack
, "\0", 1);
4322 putenv (XOBFINISH (&collect_obstack
, char *));
4325 /* Process a spec string, accumulating and running commands. */
4327 /* These variables describe the input file name.
4328 input_file_number is the index on outfiles of this file,
4329 so that the output file name can be stored for later use by %o.
4330 input_basename is the start of the part of the input file
4331 sans all directory names, and basename_length is the number
4332 of characters starting there excluding the suffix .c or whatever. */
4334 static const char *input_filename
;
4335 static int input_file_number
;
4336 size_t input_filename_length
;
4337 static int basename_length
;
4338 static int suffixed_basename_length
;
4339 static const char *input_basename
;
4340 static const char *input_suffix
;
4341 #ifndef HOST_LACKS_INODE_NUMBERS
4342 static struct stat input_stat
;
4344 static int input_stat_set
;
4346 /* The compiler used to process the current input file. */
4347 static struct compiler
*input_file_compiler
;
4349 /* These are variables used within do_spec and do_spec_1. */
4351 /* Nonzero if an arg has been started and not yet terminated
4352 (with space, tab or newline). */
4353 static int arg_going
;
4355 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4356 is a temporary file name. */
4357 static int delete_this_arg
;
4359 /* Nonzero means %w has been seen; the next arg to be terminated
4360 is the output file name of this compilation. */
4361 static int this_is_output_file
;
4363 /* Nonzero means %s has been seen; the next arg to be terminated
4364 is the name of a library file and we should try the standard
4365 search dirs for it. */
4366 static int this_is_library_file
;
4368 /* Nonzero means that the input of this command is coming from a pipe. */
4369 static int input_from_pipe
;
4371 /* Nonnull means substitute this for any suffix when outputting a switches
4373 static const char *suffix_subst
;
4375 /* Process the spec SPEC and run the commands specified therein.
4376 Returns 0 if the spec is successfully processed; -1 if failed. */
4379 do_spec (const char *spec
)
4383 value
= do_spec_2 (spec
);
4385 /* Force out any unfinished command.
4386 If -pipe, this forces out the last command if it ended in `|'. */
4389 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4392 set_collect_gcc_options ();
4394 if (argbuf_index
> 0)
4402 do_spec_2 (const char *spec
)
4409 delete_this_arg
= 0;
4410 this_is_output_file
= 0;
4411 this_is_library_file
= 0;
4412 input_from_pipe
= 0;
4413 suffix_subst
= NULL
;
4415 result
= do_spec_1 (spec
, 0, NULL
);
4417 /* End any pending argument. */
4420 obstack_1grow (&obstack
, 0);
4421 string
= XOBFINISH (&obstack
, const char *);
4422 if (this_is_library_file
)
4423 string
= find_file (string
);
4424 store_arg (string
, delete_this_arg
, this_is_output_file
);
4425 if (this_is_output_file
)
4426 outfiles
[input_file_number
] = string
;
4434 /* Process the given spec string and add any new options to the end
4435 of the switches/n_switches array. */
4438 do_option_spec (const char *name
, const char *spec
)
4440 unsigned int i
, value_count
, value_len
;
4441 const char *p
, *q
, *value
;
4442 char *tmp_spec
, *tmp_spec_p
;
4444 if (configure_default_options
[0].name
== NULL
)
4447 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4448 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4450 if (i
== ARRAY_SIZE (configure_default_options
))
4453 value
= configure_default_options
[i
].value
;
4454 value_len
= strlen (value
);
4456 /* Compute the size of the final spec. */
4459 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4465 /* Replace each %(VALUE) by the specified value. */
4466 tmp_spec
= alloca (strlen (spec
) + 1
4467 + value_count
* (value_len
- strlen ("%(VALUE)")));
4468 tmp_spec_p
= tmp_spec
;
4470 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4472 memcpy (tmp_spec_p
, q
, p
- q
);
4473 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4474 memcpy (tmp_spec_p
, value
, value_len
);
4475 tmp_spec_p
+= value_len
;
4476 q
= p
+ strlen ("%(VALUE)");
4478 strcpy (tmp_spec_p
, q
);
4480 do_self_spec (tmp_spec
);
4483 /* Process the given spec string and add any new options to the end
4484 of the switches/n_switches array. */
4487 do_self_spec (const char *spec
)
4490 do_spec_1 (" ", 0, NULL
);
4492 if (argbuf_index
> 0)
4497 n_switches
+= argbuf_index
;
4498 switches
= xrealloc (switches
,
4499 sizeof (struct switchstr
) * (n_switches
+ 1));
4501 switches
[n_switches
] = switches
[first
];
4502 for (i
= 0; i
< argbuf_index
; i
++)
4504 struct switchstr
*sw
;
4506 /* Each switch should start with '-'. */
4507 if (argbuf
[i
][0] != '-')
4508 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4510 sw
= &switches
[i
+ first
];
4511 sw
->part1
= &argbuf
[i
][1];
4513 sw
->live_cond
= SWITCH_OK
;
4520 /* Callback for processing %D and %I specs. */
4522 struct spec_path_info
{
4527 bool separate_options
;
4531 spec_path (char *path
, void *data
)
4533 struct spec_path_info
*info
= data
;
4537 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4540 if (info
->append_len
!= 0)
4542 len
= strlen (path
);
4543 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4546 if (!is_directory (path
, true))
4549 do_spec_1 (info
->option
, 1, NULL
);
4550 if (info
->separate_options
)
4551 do_spec_1 (" ", 0, NULL
);
4553 if (info
->append_len
== 0)
4555 len
= strlen (path
);
4556 save
= path
[len
- 1];
4557 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4558 path
[len
- 1] = '\0';
4561 do_spec_1 (path
, 1, NULL
);
4562 do_spec_1 (" ", 0, NULL
);
4564 /* Must not damage the original path. */
4565 if (info
->append_len
== 0)
4566 path
[len
- 1] = save
;
4571 /* Process the sub-spec SPEC as a portion of a larger spec.
4572 This is like processing a whole spec except that we do
4573 not initialize at the beginning and we do not supply a
4574 newline by default at the end.
4575 INSWITCH nonzero means don't process %-sequences in SPEC;
4576 in this case, % is treated as an ordinary character.
4577 This is used while substituting switches.
4578 INSWITCH nonzero also causes SPC not to terminate an argument.
4580 Value is zero unless a line was finished
4581 and the command on that line reported an error. */
4584 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4586 const char *p
= spec
;
4593 /* If substituting a switch, treat all chars like letters.
4594 Otherwise, NL, SPC, TAB and % are special. */
4595 switch (inswitch
? 'a' : c
)
4598 /* End of line: finish any pending argument,
4599 then run the pending command if one has been started. */
4602 obstack_1grow (&obstack
, 0);
4603 string
= XOBFINISH (&obstack
, const char *);
4604 if (this_is_library_file
)
4605 string
= find_file (string
);
4606 store_arg (string
, delete_this_arg
, this_is_output_file
);
4607 if (this_is_output_file
)
4608 outfiles
[input_file_number
] = string
;
4612 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4614 /* A `|' before the newline means use a pipe here,
4615 but only if -pipe was specified.
4616 Otherwise, execute now and don't pass the `|' as an arg. */
4619 input_from_pipe
= 1;
4626 set_collect_gcc_options ();
4628 if (argbuf_index
> 0)
4634 /* Reinitialize for a new command, and for a new argument. */
4637 delete_this_arg
= 0;
4638 this_is_output_file
= 0;
4639 this_is_library_file
= 0;
4640 input_from_pipe
= 0;
4644 /* End any pending argument. */
4647 obstack_1grow (&obstack
, 0);
4648 string
= XOBFINISH (&obstack
, const char *);
4649 if (this_is_library_file
)
4650 string
= find_file (string
);
4651 store_arg (string
, delete_this_arg
, this_is_output_file
);
4652 if (this_is_output_file
)
4653 outfiles
[input_file_number
] = string
;
4657 obstack_1grow (&obstack
, c
);
4663 /* Space or tab ends an argument if one is pending. */
4666 obstack_1grow (&obstack
, 0);
4667 string
= XOBFINISH (&obstack
, const char *);
4668 if (this_is_library_file
)
4669 string
= find_file (string
);
4670 store_arg (string
, delete_this_arg
, this_is_output_file
);
4671 if (this_is_output_file
)
4672 outfiles
[input_file_number
] = string
;
4674 /* Reinitialize for a new argument. */
4676 delete_this_arg
= 0;
4677 this_is_output_file
= 0;
4678 this_is_library_file
= 0;
4685 fatal ("spec '%s' invalid", spec
);
4688 obstack_grow (&obstack
, input_basename
, basename_length
);
4693 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4698 delete_this_arg
= 2;
4701 /* Dump out the directories specified with LIBRARY_PATH,
4702 followed by the absolute directories
4703 that we search for startfiles. */
4706 struct spec_path_info info
;
4709 info
.append_len
= 0;
4710 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4711 /* Used on systems which record the specified -L dirs
4712 and use them to search for dynamic linking.
4713 Relative directories always come from -B,
4714 and it is better not to use them for searching
4715 at run time. In particular, stage1 loses. */
4716 info
.omit_relative
= true;
4718 info
.omit_relative
= false;
4720 info
.separate_options
= false;
4722 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4727 /* %efoo means report an error with `foo' as error message
4728 and don't execute any more commands for this file. */
4732 while (*p
!= 0 && *p
!= '\n')
4734 buf
= alloca (p
- q
+ 1);
4735 strncpy (buf
, q
, p
- q
);
4742 /* %nfoo means report a notice with `foo' on stderr. */
4746 while (*p
!= 0 && *p
!= '\n')
4748 buf
= alloca (p
- q
+ 1);
4749 strncpy (buf
, q
, p
- q
);
4751 notice ("%s\n", buf
);
4761 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4762 defined, and it is not a directory, and it is
4763 writable, use it. Otherwise, treat this like any
4764 other temporary file. */
4766 if ((!save_temps_flag
)
4767 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4768 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4770 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4771 strlen (HOST_BIT_BUCKET
));
4772 delete_this_arg
= 0;
4777 goto create_temp_file
;
4781 obstack_1grow (&obstack
, '-');
4782 delete_this_arg
= 0;
4785 /* consume suffix */
4786 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4788 if (p
[0] == '%' && p
[1] == 'O')
4793 goto create_temp_file
;
4797 /* consume suffix */
4798 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4800 if (p
[0] == '%' && p
[1] == 'O')
4805 goto create_temp_file
;
4811 struct temp_name
*t
;
4813 const char *suffix
= p
;
4814 char *saved_suffix
= NULL
;
4816 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4818 suffix_length
= p
- suffix
;
4819 if (p
[0] == '%' && p
[1] == 'O')
4822 /* We don't support extra suffix characters after %O. */
4823 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4824 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4825 if (suffix_length
== 0)
4826 suffix
= TARGET_OBJECT_SUFFIX
;
4830 = XNEWVEC (char, suffix_length
4831 + strlen (TARGET_OBJECT_SUFFIX
));
4832 strncpy (saved_suffix
, suffix
, suffix_length
);
4833 strcpy (saved_suffix
+ suffix_length
,
4834 TARGET_OBJECT_SUFFIX
);
4836 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4839 /* If the input_filename has the same suffix specified
4840 for the %g, %u, or %U, and -save-temps is specified,
4841 we could end up using that file as an intermediate
4842 thus clobbering the user's source file (.e.g.,
4843 gcc -save-temps foo.s would clobber foo.s with the
4844 output of cpp0). So check for this condition and
4845 generate a temp file as the intermediate. */
4847 if (save_temps_flag
)
4849 temp_filename_length
= basename_length
+ suffix_length
;
4850 temp_filename
= alloca (temp_filename_length
+ 1);
4851 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4852 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4854 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4855 if (strcmp (temp_filename
, input_filename
) != 0)
4857 #ifndef HOST_LACKS_INODE_NUMBERS
4858 struct stat st_temp
;
4860 /* Note, set_input() resets input_stat_set to 0. */
4861 if (input_stat_set
== 0)
4863 input_stat_set
= stat (input_filename
, &input_stat
);
4864 if (input_stat_set
>= 0)
4868 /* If we have the stat for the input_filename
4869 and we can do the stat for the temp_filename
4870 then the they could still refer to the same
4871 file if st_dev/st_ino's are the same. */
4872 if (input_stat_set
!= 1
4873 || stat (temp_filename
, &st_temp
) < 0
4874 || input_stat
.st_dev
!= st_temp
.st_dev
4875 || input_stat
.st_ino
!= st_temp
.st_ino
)
4877 /* Just compare canonical pathnames. */
4878 char* input_realname
= lrealpath (input_filename
);
4879 char* temp_realname
= lrealpath (temp_filename
);
4880 bool files_differ
= strcmp (input_realname
, temp_realname
);
4881 free (input_realname
);
4882 free (temp_realname
);
4886 temp_filename
= save_string (temp_filename
,
4887 temp_filename_length
+ 1);
4888 obstack_grow (&obstack
, temp_filename
,
4889 temp_filename_length
);
4891 delete_this_arg
= 0;
4897 /* See if we already have an association of %g/%u/%U and
4899 for (t
= temp_names
; t
; t
= t
->next
)
4900 if (t
->length
== suffix_length
4901 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4902 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4905 /* Make a new association if needed. %u and %j
4907 if (t
== 0 || c
== 'u' || c
== 'j')
4911 t
= xmalloc (sizeof (struct temp_name
));
4912 t
->next
= temp_names
;
4915 t
->length
= suffix_length
;
4918 t
->suffix
= saved_suffix
;
4919 saved_suffix
= NULL
;
4922 t
->suffix
= save_string (suffix
, suffix_length
);
4923 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4924 temp_filename
= make_temp_file (t
->suffix
);
4925 temp_filename_length
= strlen (temp_filename
);
4926 t
->filename
= temp_filename
;
4927 t
->filename_length
= temp_filename_length
;
4931 free (saved_suffix
);
4933 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4934 delete_this_arg
= 1;
4942 for (i
= 0; (int) i
< n_infiles
; i
++)
4943 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4944 if (infiles
[i
].incompiler
== input_file_compiler
)
4946 store_arg (infiles
[i
].name
, 0, 0);
4947 infiles
[i
].compiled
= true;
4952 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4959 struct spec_path_info info
;
4963 do_spec_1 ("-imultilib", 1, NULL
);
4964 /* Make this a separate argument. */
4965 do_spec_1 (" ", 0, NULL
);
4966 do_spec_1 (multilib_dir
, 1, NULL
);
4967 do_spec_1 (" ", 0, NULL
);
4970 if (gcc_exec_prefix
)
4972 do_spec_1 ("-iprefix", 1, NULL
);
4973 /* Make this a separate argument. */
4974 do_spec_1 (" ", 0, NULL
);
4975 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4976 do_spec_1 (" ", 0, NULL
);
4979 if (target_system_root_changed
||
4980 (target_system_root
&& target_sysroot_hdrs_suffix
))
4982 do_spec_1 ("-isysroot", 1, NULL
);
4983 /* Make this a separate argument. */
4984 do_spec_1 (" ", 0, NULL
);
4985 do_spec_1 (target_system_root
, 1, NULL
);
4986 if (target_sysroot_hdrs_suffix
)
4987 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4988 do_spec_1 (" ", 0, NULL
);
4991 info
.option
= "-isystem";
4992 info
.append
= "include";
4993 info
.append_len
= strlen (info
.append
);
4994 info
.omit_relative
= false;
4995 info
.separate_options
= true;
4997 for_each_path (&include_prefixes
, false, info
.append_len
,
5004 int max
= n_infiles
;
5005 max
+= lang_specific_extra_outfiles
;
5007 for (i
= 0; i
< max
; i
++)
5009 store_arg (outfiles
[i
], 0, 0);
5014 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5019 this_is_library_file
= 1;
5023 outfiles
[input_file_number
] = NULL
;
5027 this_is_output_file
= 1;
5032 int cur_index
= argbuf_index
;
5033 /* Handle the {...} following the %W. */
5035 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5036 p
= handle_braces (p
+ 1);
5039 /* End any pending argument. */
5042 obstack_1grow (&obstack
, 0);
5043 string
= XOBFINISH (&obstack
, const char *);
5044 if (this_is_library_file
)
5045 string
= find_file (string
);
5046 store_arg (string
, delete_this_arg
, this_is_output_file
);
5047 if (this_is_output_file
)
5048 outfiles
[input_file_number
] = string
;
5051 /* If any args were output, mark the last one for deletion
5053 if (argbuf_index
!= cur_index
)
5054 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5058 /* %x{OPTION} records OPTION for %X to output. */
5064 /* Skip past the option value and make a copy. */
5066 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5069 string
= save_string (p1
+ 1, p
- p1
- 2);
5071 /* See if we already recorded this option. */
5072 for (i
= 0; i
< n_linker_options
; i
++)
5073 if (! strcmp (string
, linker_options
[i
]))
5079 /* This option is new; add it. */
5080 add_linker_option (string
, strlen (string
));
5084 /* Dump out the options accumulated previously using %x. */
5086 for (i
= 0; i
< n_linker_options
; i
++)
5088 do_spec_1 (linker_options
[i
], 1, NULL
);
5089 /* Make each accumulated option a separate argument. */
5090 do_spec_1 (" ", 0, NULL
);
5094 /* Dump out the options accumulated previously using -Wa,. */
5096 for (i
= 0; i
< n_assembler_options
; i
++)
5098 do_spec_1 (assembler_options
[i
], 1, NULL
);
5099 /* Make each accumulated option a separate argument. */
5100 do_spec_1 (" ", 0, NULL
);
5104 /* Dump out the options accumulated previously using -Wp,. */
5106 for (i
= 0; i
< n_preprocessor_options
; i
++)
5108 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5109 /* Make each accumulated option a separate argument. */
5110 do_spec_1 (" ", 0, NULL
);
5114 /* Here are digits and numbers that just process
5115 a certain constant string as a spec. */
5118 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5124 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5130 value
= do_spec_1 (asm_spec
, 0, NULL
);
5136 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5143 const char *const spec
5144 = (input_file_compiler
->cpp_spec
5145 ? input_file_compiler
->cpp_spec
5147 value
= do_spec_1 (spec
, 0, NULL
);
5154 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5160 value
= do_spec_1 (link_spec
, 0, NULL
);
5166 value
= do_spec_1 (lib_spec
, 0, NULL
);
5172 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5178 /* We assume there is a directory
5179 separator at the end of this string. */
5180 if (target_system_root
)
5182 obstack_grow (&obstack
, target_system_root
,
5183 strlen (target_system_root
));
5184 if (target_sysroot_suffix
)
5185 obstack_grow (&obstack
, target_sysroot_suffix
,
5186 strlen (target_sysroot_suffix
));
5191 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5196 /* Here we define characters other than letters and digits. */
5199 p
= handle_braces (p
);
5205 p
= handle_spec_function (p
);
5211 obstack_1grow (&obstack
, '%');
5218 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5220 suffix_subst
= save_string (p
- 1, len
+ 1);
5225 /* Henceforth ignore the option(s) matching the pattern
5230 int have_wildcard
= 0;
5233 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5236 if (p
[len
-1] == '*')
5239 for (i
= 0; i
< n_switches
; i
++)
5240 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5241 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5243 switches
[i
].live_cond
= SWITCH_IGNORE
;
5244 switches
[i
].validated
= 1;
5252 if (soft_matched_part
)
5254 do_spec_1 (soft_matched_part
, 1, NULL
);
5255 do_spec_1 (" ", 0, NULL
);
5258 /* Catch the case where a spec string contains something like
5259 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5260 hand side of the :. */
5261 error ("spec failure: '%%*' has not been initialized by pattern match");
5264 /* Process a string found as the value of a spec given by name.
5265 This feature allows individual machine descriptions
5266 to add and use their own specs.
5267 %[...] modifies -D options the way %P does;
5268 %(...) uses the spec unmodified. */
5270 error ("warning: use of obsolete %%[ operator in specs");
5273 const char *name
= p
;
5274 struct spec_list
*sl
;
5277 /* The string after the S/P is the name of a spec that is to be
5279 while (*p
&& *p
!= ')' && *p
!= ']')
5282 /* See if it's in the list. */
5283 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5284 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5286 name
= *(sl
->ptr_spec
);
5288 notice ("Processing spec %c%s%c, which is '%s'\n",
5289 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5298 value
= do_spec_1 (name
, 0, NULL
);
5304 char *x
= alloca (strlen (name
) * 2 + 1);
5306 const char *y
= name
;
5309 /* Copy all of NAME into BUF, but put __ after
5310 every -D and at the end of each arg. */
5313 if (! strncmp (y
, "-D", 2))
5324 && (*y
== ' ' || *y
== '\t' || *y
== '='
5325 || *y
== '}' || *y
== 0))
5338 value
= do_spec_1 (buf
, 0, NULL
);
5344 /* Discard the closing paren or bracket. */
5351 error ("spec failure: unrecognized spec option '%c'", c
);
5357 /* Backslash: treat next character as ordinary. */
5362 /* Ordinary character: put it into the current argument. */
5363 obstack_1grow (&obstack
, c
);
5367 /* End of string. If we are processing a spec function, we need to
5368 end any pending argument. */
5369 if (processing_spec_function
&& arg_going
)
5371 obstack_1grow (&obstack
, 0);
5372 string
= XOBFINISH (&obstack
, const char *);
5373 if (this_is_library_file
)
5374 string
= find_file (string
);
5375 store_arg (string
, delete_this_arg
, this_is_output_file
);
5376 if (this_is_output_file
)
5377 outfiles
[input_file_number
] = string
;
5384 /* Look up a spec function. */
5386 static const struct spec_function
*
5387 lookup_spec_function (const char *name
)
5389 const struct spec_function
*sf
;
5391 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5392 if (strcmp (sf
->name
, name
) == 0)
5398 /* Evaluate a spec function. */
5401 eval_spec_function (const char *func
, const char *args
)
5403 const struct spec_function
*sf
;
5404 const char *funcval
;
5406 /* Saved spec processing context. */
5407 int save_argbuf_index
;
5408 int save_argbuf_length
;
5409 const char **save_argbuf
;
5412 int save_delete_this_arg
;
5413 int save_this_is_output_file
;
5414 int save_this_is_library_file
;
5415 int save_input_from_pipe
;
5416 const char *save_suffix_subst
;
5419 sf
= lookup_spec_function (func
);
5421 fatal ("unknown spec function '%s'", func
);
5423 /* Push the spec processing context. */
5424 save_argbuf_index
= argbuf_index
;
5425 save_argbuf_length
= argbuf_length
;
5426 save_argbuf
= argbuf
;
5428 save_arg_going
= arg_going
;
5429 save_delete_this_arg
= delete_this_arg
;
5430 save_this_is_output_file
= this_is_output_file
;
5431 save_this_is_library_file
= this_is_library_file
;
5432 save_input_from_pipe
= input_from_pipe
;
5433 save_suffix_subst
= suffix_subst
;
5435 /* Create a new spec processing context, and build the function
5439 if (do_spec_2 (args
) < 0)
5440 fatal ("error in args to spec function '%s'", func
);
5442 /* argbuf_index is an index for the next argument to be inserted, and
5443 so contains the count of the args already inserted. */
5445 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5447 /* Pop the spec processing context. */
5448 argbuf_index
= save_argbuf_index
;
5449 argbuf_length
= save_argbuf_length
;
5451 argbuf
= save_argbuf
;
5453 arg_going
= save_arg_going
;
5454 delete_this_arg
= save_delete_this_arg
;
5455 this_is_output_file
= save_this_is_output_file
;
5456 this_is_library_file
= save_this_is_library_file
;
5457 input_from_pipe
= save_input_from_pipe
;
5458 suffix_subst
= save_suffix_subst
;
5463 /* Handle a spec function call of the form:
5467 ARGS is processed as a spec in a separate context and split into an
5468 argument vector in the normal fashion. The function returns a string
5469 containing a spec which we then process in the caller's context, or
5470 NULL if no processing is required. */
5473 handle_spec_function (const char *p
)
5476 const char *endp
, *funcval
;
5479 processing_spec_function
++;
5481 /* Get the function name. */
5482 for (endp
= p
; *endp
!= '\0'; endp
++)
5484 if (*endp
== '(') /* ) */
5486 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5487 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5488 fatal ("malformed spec function name");
5490 if (*endp
!= '(') /* ) */
5491 fatal ("no arguments for spec function");
5492 func
= save_string (p
, endp
- p
);
5495 /* Get the arguments. */
5496 for (count
= 0; *endp
!= '\0'; endp
++)
5505 else if (*endp
== '(') /* ) */
5510 fatal ("malformed spec function arguments");
5511 args
= save_string (p
, endp
- p
);
5514 /* p now points to just past the end of the spec function expression. */
5516 funcval
= eval_spec_function (func
, args
);
5517 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5523 processing_spec_function
--;
5528 /* Inline subroutine of handle_braces. Returns true if the current
5529 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5531 input_suffix_matches (const char *atom
, const char *end_atom
)
5533 /* We special case the semantics of {.s:...} and {.S:...} and their
5534 negative variants. Instead of testing the input filename suffix,
5535 we test whether the input source file is an assembler file or an
5536 assembler-with-cpp file respectively. This allows us to correctly
5537 handle the -x command line option. */
5539 if (atom
+ 1 == end_atom
5540 && input_file_compiler
5541 && input_file_compiler
->suffix
)
5544 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5546 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5549 return (input_suffix
5550 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5551 && input_suffix
[end_atom
- atom
] == '\0');
5554 /* Subroutine of handle_braces. Returns true if a switch
5555 matching the atom bracketed by ATOM and END_ATOM appeared on the
5558 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5561 int len
= end_atom
- atom
;
5562 int plen
= starred
? len
: -1;
5564 for (i
= 0; i
< n_switches
; i
++)
5565 if (!strncmp (switches
[i
].part1
, atom
, len
)
5566 && (starred
|| switches
[i
].part1
[len
] == '\0')
5567 && check_live_switch (i
, plen
))
5573 /* Inline subroutine of handle_braces. Mark all of the switches which
5574 match ATOM (extends to END_ATOM; STARRED indicates whether there
5575 was a star after the atom) for later processing. */
5577 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5580 int len
= end_atom
- atom
;
5581 int plen
= starred
? len
: -1;
5583 for (i
= 0; i
< n_switches
; i
++)
5584 if (!strncmp (switches
[i
].part1
, atom
, len
)
5585 && (starred
|| switches
[i
].part1
[len
] == '\0')
5586 && check_live_switch (i
, plen
))
5587 switches
[i
].ordering
= 1;
5590 /* Inline subroutine of handle_braces. Process all the currently
5591 marked switches through give_switch, and clear the marks. */
5593 process_marked_switches (void)
5597 for (i
= 0; i
< n_switches
; i
++)
5598 if (switches
[i
].ordering
== 1)
5600 switches
[i
].ordering
= 0;
5605 /* Handle a %{ ... } construct. P points just inside the leading {.
5606 Returns a pointer one past the end of the brace block, or 0
5607 if we call do_spec_1 and that returns -1. */
5610 handle_braces (const char *p
)
5612 const char *atom
, *end_atom
;
5613 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5614 const char *orig
= p
;
5621 bool a_must_be_last
= false;
5622 bool ordered_set
= false;
5623 bool disjunct_set
= false;
5624 bool disj_matched
= false;
5625 bool disj_starred
= true;
5626 bool n_way_choice
= false;
5627 bool n_way_matched
= false;
5629 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5636 /* Scan one "atom" (S in the description above of %{}, possibly
5637 with !, ., or * modifiers). */
5638 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5642 p
++, a_is_negated
= true;
5646 p
++, a_is_suffix
= true;
5649 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5650 || *p
== ',' || *p
== '.' || *p
== '@')
5655 p
++, a_is_starred
= 1;
5661 /* Substitute the switch(es) indicated by the current atom. */
5663 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5664 || atom
== end_atom
)
5667 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5670 process_marked_switches ();
5674 /* Substitute some text if the current atom appears as a switch
5676 disjunct_set
= true;
5680 if (atom
== end_atom
)
5682 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5683 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5686 /* An empty term may appear as the last choice of an
5687 N-way choice set; it means "otherwise". */
5688 a_must_be_last
= true;
5689 disj_matched
= !n_way_matched
;
5690 disj_starred
= false;
5694 if (a_is_suffix
&& a_is_starred
)
5698 disj_starred
= false;
5700 /* Don't bother testing this atom if we already have a
5702 if (!disj_matched
&& !n_way_matched
)
5705 a_matched
= input_suffix_matches (atom
, end_atom
);
5707 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5709 if (a_matched
!= a_is_negated
)
5711 disj_matched
= true;
5713 d_end_atom
= end_atom
;
5720 /* Found the body, that is, the text to substitute if the
5721 current disjunction matches. */
5722 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5723 disj_matched
&& !n_way_matched
);
5727 /* If we have an N-way choice, reset state for the next
5731 n_way_choice
= true;
5732 n_way_matched
|= disj_matched
;
5733 disj_matched
= false;
5734 disj_starred
= true;
5735 d_atom
= d_end_atom
= NULL
;
5744 while (*p
++ != '}');
5749 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5754 /* Subroutine of handle_braces. Scan and process a brace substitution body
5755 (X in the description of %{} syntax). P points one past the colon;
5756 ATOM and END_ATOM bracket the first atom which was found to be true
5757 (present) in the current disjunction; STARRED indicates whether all
5758 the atoms in the current disjunction were starred (for syntax validation);
5759 MATCHED indicates whether the disjunction matched or not, and therefore
5760 whether or not the body is to be processed through do_spec_1 or just
5761 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5765 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5766 int starred
, int matched
)
5768 const char *body
, *end_body
;
5769 unsigned int nesting_level
;
5770 bool have_subst
= false;
5772 /* Locate the closing } or ;, honoring nested braces.
5773 Trim trailing whitespace. */
5782 if (!--nesting_level
)
5785 else if (*p
== ';' && nesting_level
== 1)
5787 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5789 else if (*p
== '\0')
5795 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5798 if (have_subst
&& !starred
)
5803 /* Copy the substitution body to permanent storage and execute it.
5804 If have_subst is false, this is a simple matter of running the
5805 body through do_spec_1... */
5806 char *string
= save_string (body
, end_body
- body
);
5809 if (do_spec_1 (string
, 0, NULL
) < 0)
5814 /* ... but if have_subst is true, we have to process the
5815 body once for each matching switch, with %* set to the
5816 variant part of the switch. */
5817 unsigned int hard_match_len
= end_atom
- atom
;
5820 for (i
= 0; i
< n_switches
; i
++)
5821 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5822 && check_live_switch (i
, hard_match_len
))
5824 if (do_spec_1 (string
, 0,
5825 &switches
[i
].part1
[hard_match_len
]) < 0)
5827 /* Pass any arguments this switch has. */
5829 suffix_subst
= NULL
;
5837 fatal ("braced spec body '%s' is invalid", body
);
5840 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5841 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5842 spec, or -1 if either exact match or %* is used.
5844 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5845 whose value does not begin with "no-" is obsoleted by the same value
5846 with the "no-", similarly for a switch with the "no-" prefix. */
5849 check_live_switch (int switchnum
, int prefix_length
)
5851 const char *name
= switches
[switchnum
].part1
;
5854 /* In the common case of {<at-most-one-letter>*}, a negating
5855 switch would always match, so ignore that case. We will just
5856 send the conflicting switches to the compiler phase. */
5857 if (prefix_length
>= 0 && prefix_length
<= 1)
5860 /* If we already processed this switch and determined if it was
5861 live or not, return our past determination. */
5862 if (switches
[switchnum
].live_cond
!= 0)
5863 return switches
[switchnum
].live_cond
> 0;
5865 /* Now search for duplicate in a manner that depends on the name. */
5869 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5870 if (switches
[i
].part1
[0] == 'O')
5872 switches
[switchnum
].validated
= 1;
5873 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5878 case 'W': case 'f': case 'm':
5879 if (! strncmp (name
+ 1, "no-", 3))
5881 /* We have Xno-YYY, search for XYYY. */
5882 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5883 if (switches
[i
].part1
[0] == name
[0]
5884 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5886 switches
[switchnum
].validated
= 1;
5887 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5893 /* We have XYYY, search for Xno-YYY. */
5894 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5895 if (switches
[i
].part1
[0] == name
[0]
5896 && switches
[i
].part1
[1] == 'n'
5897 && switches
[i
].part1
[2] == 'o'
5898 && switches
[i
].part1
[3] == '-'
5899 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5901 switches
[switchnum
].validated
= 1;
5902 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5909 /* Otherwise the switch is live. */
5910 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5914 /* Pass a switch to the current accumulating command
5915 in the same form that we received it.
5916 SWITCHNUM identifies the switch; it is an index into
5917 the vector of switches gcc received, which is `switches'.
5918 This cannot fail since it never finishes a command line.
5920 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5923 give_switch (int switchnum
, int omit_first_word
)
5925 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5928 if (!omit_first_word
)
5930 do_spec_1 ("-", 0, NULL
);
5931 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5934 if (switches
[switchnum
].args
!= 0)
5937 for (p
= switches
[switchnum
].args
; *p
; p
++)
5939 const char *arg
= *p
;
5941 do_spec_1 (" ", 0, NULL
);
5944 unsigned length
= strlen (arg
);
5947 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5948 if (arg
[length
] == '.')
5950 ((char *)arg
)[length
] = 0;
5954 do_spec_1 (arg
, 1, NULL
);
5956 ((char *)arg
)[length
] = '.';
5957 do_spec_1 (suffix_subst
, 1, NULL
);
5960 do_spec_1 (arg
, 1, NULL
);
5964 do_spec_1 (" ", 0, NULL
);
5965 switches
[switchnum
].validated
= 1;
5968 /* Search for a file named NAME trying various prefixes including the
5969 user's -B prefix and some standard ones.
5970 Return the absolute file name found. If nothing is found, return NAME. */
5973 find_file (const char *name
)
5975 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5976 return newname
? newname
: name
;
5979 /* Determine whether a directory exists. If LINKER, return 0 for
5980 certain fixed names not needed by the linker. */
5983 is_directory (const char *path1
, bool linker
)
5990 /* Ensure the string ends with "/.". The resulting path will be a
5991 directory even if the given path is a symbolic link. */
5992 len1
= strlen (path1
);
5993 path
= alloca (3 + len1
);
5994 memcpy (path
, path1
, len1
);
5996 if (!IS_DIR_SEPARATOR (cp
[-1]))
5997 *cp
++ = DIR_SEPARATOR
;
6001 /* Exclude directories that the linker is known to search. */
6003 && IS_DIR_SEPARATOR (path
[0])
6005 && strncmp (path
+ 1, "lib", 3) == 0)
6007 && strncmp (path
+ 1, "usr", 3) == 0
6008 && IS_DIR_SEPARATOR (path
[4])
6009 && strncmp (path
+ 5, "lib", 3) == 0)))
6012 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6015 /* Set up the various global variables to indicate that we're processing
6016 the input file named FILENAME. */
6019 set_input (const char *filename
)
6023 input_filename
= filename
;
6024 input_filename_length
= strlen (input_filename
);
6026 input_basename
= input_filename
;
6027 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6028 /* Skip drive name so 'x:foo' is handled properly. */
6029 if (input_basename
[1] == ':')
6030 input_basename
+= 2;
6032 for (p
= input_basename
; *p
; p
++)
6033 if (IS_DIR_SEPARATOR (*p
))
6034 input_basename
= p
+ 1;
6036 /* Find a suffix starting with the last period,
6037 and set basename_length to exclude that suffix. */
6038 basename_length
= strlen (input_basename
);
6039 suffixed_basename_length
= basename_length
;
6040 p
= input_basename
+ basename_length
;
6041 while (p
!= input_basename
&& *p
!= '.')
6043 if (*p
== '.' && p
!= input_basename
)
6045 basename_length
= p
- input_basename
;
6046 input_suffix
= p
+ 1;
6051 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6052 we will need to do a stat on the input_filename. The
6053 INPUT_STAT_SET signals that the stat is needed. */
6057 /* On fatal signals, delete all the temporary files. */
6060 fatal_error (int signum
)
6062 signal (signum
, SIG_DFL
);
6063 delete_failure_queue ();
6064 delete_temp_files ();
6065 /* Get the same signal again, this time not handled,
6066 so its normal effect occurs. */
6067 kill (getpid (), signum
);
6070 extern int main (int, char **);
6073 main (int argc
, char **argv
)
6077 int linker_was_run
= 0;
6078 int lang_n_infiles
= 0;
6079 int num_linker_inputs
= 0;
6080 char *explicit_link_files
;
6083 struct user_specs
*uptr
;
6085 p
= argv
[0] + strlen (argv
[0]);
6086 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6090 xmalloc_set_program_name (programname
);
6092 expandargv (&argc
, &argv
);
6094 prune_options (&argc
, &argv
);
6096 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6097 /* Perform host dependent initialization when needed. */
6098 GCC_DRIVER_HOST_INITIALIZATION
;
6101 /* Unlock the stdio streams. */
6102 unlock_std_streams ();
6104 gcc_init_libintl ();
6106 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6107 signal (SIGINT
, fatal_error
);
6109 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6110 signal (SIGHUP
, fatal_error
);
6112 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6113 signal (SIGTERM
, fatal_error
);
6115 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6116 signal (SIGPIPE
, fatal_error
);
6119 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6120 receive the signal. A different setting is inheritable */
6121 signal (SIGCHLD
, SIG_DFL
);
6124 /* Allocate the argument vector. */
6127 obstack_init (&obstack
);
6129 /* Build multilib_select, et. al from the separate lines that make up each
6130 multilib selection. */
6132 const char *const *q
= multilib_raw
;
6135 obstack_init (&multilib_obstack
);
6136 while ((p
= *q
++) != (char *) 0)
6137 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6139 obstack_1grow (&multilib_obstack
, 0);
6140 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6142 q
= multilib_matches_raw
;
6143 while ((p
= *q
++) != (char *) 0)
6144 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6146 obstack_1grow (&multilib_obstack
, 0);
6147 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6149 q
= multilib_exclusions_raw
;
6150 while ((p
= *q
++) != (char *) 0)
6151 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6153 obstack_1grow (&multilib_obstack
, 0);
6154 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6157 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6160 obstack_1grow (&multilib_obstack
, ' ');
6161 obstack_grow (&multilib_obstack
,
6162 multilib_defaults_raw
[i
],
6163 strlen (multilib_defaults_raw
[i
]));
6167 obstack_1grow (&multilib_obstack
, 0);
6168 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6171 /* Set up to remember the pathname of gcc and any options
6172 needed for collect. We use argv[0] instead of programname because
6173 we need the complete pathname. */
6174 obstack_init (&collect_obstack
);
6175 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6176 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6177 putenv (XOBFINISH (&collect_obstack
, char *));
6179 #ifdef INIT_ENVIRONMENT
6180 /* Set up any other necessary machine specific environment variables. */
6181 putenv (INIT_ENVIRONMENT
);
6184 /* Make a table of what switches there are (switches, n_switches).
6185 Make a table of specified input files (infiles, n_infiles).
6186 Decode switches that are handled locally. */
6188 process_command (argc
, (const char **) argv
);
6190 /* Initialize the vector of specs to just the default.
6191 This means one element containing 0s, as a terminator. */
6193 compilers
= xmalloc (sizeof default_compilers
);
6194 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6195 n_compilers
= n_default_compilers
;
6197 /* Read specs from a file if there is one. */
6199 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6200 spec_version
, dir_separator_str
, NULL
);
6201 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6203 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6204 /* Read the specs file unless it is a default one. */
6205 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6206 read_specs (specs_file
, TRUE
);
6210 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6211 for any override of as, ld and libraries. */
6212 specs_file
= alloca (strlen (standard_exec_prefix
)
6213 + strlen (just_machine_suffix
) + sizeof ("specs"));
6215 strcpy (specs_file
, standard_exec_prefix
);
6216 strcat (specs_file
, just_machine_suffix
);
6217 strcat (specs_file
, "specs");
6218 if (access (specs_file
, R_OK
) == 0)
6219 read_specs (specs_file
, TRUE
);
6221 /* Process any configure-time defaults specified for the command line
6222 options, via OPTION_DEFAULT_SPECS. */
6223 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6224 do_option_spec (option_default_specs
[i
].name
,
6225 option_default_specs
[i
].spec
);
6227 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6228 of the command line. */
6230 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6231 do_self_spec (driver_self_specs
[i
]);
6233 /* If not cross-compiling, look for executables in the standard
6235 if (*cross_compile
== '0')
6237 if (*md_exec_prefix
)
6239 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6240 PREFIX_PRIORITY_LAST
, 0, 0);
6244 /* Process sysroot_suffix_spec. */
6245 if (*sysroot_suffix_spec
!= 0
6246 && do_spec_2 (sysroot_suffix_spec
) == 0)
6248 if (argbuf_index
> 1)
6249 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6250 else if (argbuf_index
== 1)
6251 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6254 #ifdef HAVE_LD_SYSROOT
6255 /* Pass the --sysroot option to the linker, if it supports that. If
6256 there is a sysroot_suffix_spec, it has already been processed by
6257 this point, so target_system_root really is the system root we
6259 if (target_system_root
)
6261 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6262 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6263 set_spec ("link", XOBFINISH (&obstack
, const char *));
6267 /* Process sysroot_hdrs_suffix_spec. */
6268 if (*sysroot_hdrs_suffix_spec
!= 0
6269 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6271 if (argbuf_index
> 1)
6272 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6273 else if (argbuf_index
== 1)
6274 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6277 /* Look for startfiles in the standard places. */
6278 if (*startfile_prefix_spec
!= 0
6279 && do_spec_2 (startfile_prefix_spec
) == 0
6280 && do_spec_1 (" ", 0, NULL
) == 0)
6283 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6284 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6285 PREFIX_PRIORITY_LAST
, 0, 1);
6287 /* We should eventually get rid of all these and stick to
6288 startfile_prefix_spec exclusively. */
6289 else if (*cross_compile
== '0' || target_system_root
)
6291 if (*md_startfile_prefix
)
6292 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6293 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6295 if (*md_startfile_prefix_1
)
6296 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6297 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6299 /* If standard_startfile_prefix is relative, base it on
6300 standard_exec_prefix. This lets us move the installed tree
6301 as a unit. If GCC_EXEC_PREFIX is defined, base
6302 standard_startfile_prefix on that as well.
6304 If the prefix is relative, only search it for native compilers;
6305 otherwise we will search a directory containing host libraries. */
6306 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6307 add_sysrooted_prefix (&startfile_prefixes
,
6308 standard_startfile_prefix
, "BINUTILS",
6309 PREFIX_PRIORITY_LAST
, 0, 1);
6310 else if (*cross_compile
== '0')
6312 add_prefix (&startfile_prefixes
,
6313 concat (gcc_exec_prefix
6314 ? gcc_exec_prefix
: standard_exec_prefix
,
6316 standard_startfile_prefix
, NULL
),
6317 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6320 /* Sysrooted prefixes are relocated because target_system_root is
6321 also relocated by gcc_exec_prefix. */
6322 if (*standard_startfile_prefix_1
)
6323 add_sysrooted_prefix (&startfile_prefixes
,
6324 standard_startfile_prefix_1
, "BINUTILS",
6325 PREFIX_PRIORITY_LAST
, 0, 1);
6326 if (*standard_startfile_prefix_2
)
6327 add_sysrooted_prefix (&startfile_prefixes
,
6328 standard_startfile_prefix_2
, "BINUTILS",
6329 PREFIX_PRIORITY_LAST
, 0, 1);
6332 /* Process any user specified specs in the order given on the command
6334 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6336 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6338 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6341 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6342 if (gcc_exec_prefix
)
6343 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6344 spec_version
, dir_separator_str
, NULL
);
6346 /* Now we have the specs.
6347 Set the `valid' bits for switches that match anything in any spec. */
6349 validate_all_switches ();
6351 /* Now that we have the switches and the specs, set
6352 the subdirectory based on the options. */
6353 set_multilib_dir ();
6355 /* Warn about any switches that no pass was interested in. */
6357 for (i
= 0; (int) i
< n_switches
; i
++)
6358 if (! switches
[i
].validated
)
6359 error ("unrecognized option '-%s'", switches
[i
].part1
);
6361 /* Obey some of the options. */
6363 if (print_search_dirs
)
6365 printf (_("install: %s%s\n"),
6366 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6367 gcc_exec_prefix
? "" : machine_suffix
);
6368 printf (_("programs: %s\n"),
6369 build_search_list (&exec_prefixes
, "", false, false));
6370 printf (_("libraries: %s\n"),
6371 build_search_list (&startfile_prefixes
, "", false, true));
6375 if (print_file_name
)
6377 printf ("%s\n", find_file (print_file_name
));
6381 if (print_prog_name
)
6383 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6384 printf ("%s\n", (newname
? newname
: print_prog_name
));
6388 if (print_multi_lib
)
6390 print_multilib_info ();
6394 if (print_multi_directory
)
6396 if (multilib_dir
== NULL
)
6399 printf ("%s\n", multilib_dir
);
6403 if (print_multi_os_directory
)
6405 if (multilib_os_dir
== NULL
)
6408 printf ("%s\n", multilib_os_dir
);
6412 if (print_help_list
)
6418 printf (_("\nFor bug reporting instructions, please see:\n"));
6419 printf ("%s.\n", bug_report_url
);
6424 /* We do not exit here. Instead we have created a fake input file
6425 called 'help-dummy' which needs to be compiled, and we pass this
6426 on the various sub-processes, along with the --help switch. */
6434 notice ("Target: %s\n", spec_machine
);
6435 notice ("Configured with: %s\n", configuration_arguments
);
6437 #ifdef THREAD_MODEL_SPEC
6438 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6439 but there's no point in doing all this processing just to get
6440 thread_model back. */
6441 obstack_init (&obstack
);
6442 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6443 obstack_1grow (&obstack
, '\0');
6444 thrmod
= XOBFINISH (&obstack
, const char *);
6446 thrmod
= thread_model
;
6449 notice ("Thread model: %s\n", thrmod
);
6451 /* compiler_version is truncated at the first space when initialized
6452 from version string, so truncate version_string at the first space
6453 before comparing. */
6454 for (n
= 0; version_string
[n
]; n
++)
6455 if (version_string
[n
] == ' ')
6458 if (! strncmp (version_string
, compiler_version
, n
)
6459 && compiler_version
[n
] == 0)
6460 notice ("gcc version %s\n", version_string
);
6462 notice ("gcc driver version %s executing gcc version %s\n",
6463 version_string
, compiler_version
);
6469 if (n_infiles
== added_libraries
)
6470 fatal ("no input files");
6472 /* Make a place to record the compiler output file names
6473 that correspond to the input files. */
6476 i
+= lang_specific_extra_outfiles
;
6477 outfiles
= XCNEWVEC (const char *, i
);
6479 /* Record which files were specified explicitly as link input. */
6481 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6484 combine_inputs
= true;
6486 combine_inputs
= false;
6488 for (i
= 0; (int) i
< n_infiles
; i
++)
6490 const char *name
= infiles
[i
].name
;
6491 struct compiler
*compiler
= lookup_compiler (name
,
6493 infiles
[i
].language
);
6495 if (compiler
&& !(compiler
->combinable
))
6496 combine_inputs
= false;
6498 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6499 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6500 infiles
[i
].incompiler
= compiler
;
6504 input_file_compiler
= compiler
;
6505 infiles
[i
].incompiler
= compiler
;
6509 /* Since there is no compiler for this input file, assume it is a
6511 explicit_link_files
[i
] = 1;
6512 infiles
[i
].incompiler
= NULL
;
6514 infiles
[i
].compiled
= false;
6515 infiles
[i
].preprocessed
= false;
6518 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6519 fatal ("cannot specify -o with -c or -S with multiple files");
6521 if (combine_flag
&& save_temps_flag
)
6523 bool save_combine_inputs
= combine_inputs
;
6524 /* Must do a separate pre-processing pass for C & Objective-C files, to
6525 obtain individual .i files. */
6527 combine_inputs
= false;
6528 for (i
= 0; (int) i
< n_infiles
; i
++)
6530 int this_file_error
= 0;
6532 input_file_number
= i
;
6533 set_input (infiles
[i
].name
);
6534 if (infiles
[i
].incompiler
6535 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6536 input_file_compiler
= infiles
[i
].incompiler
;
6540 if (input_file_compiler
)
6542 if (input_file_compiler
->spec
[0] == '#')
6544 error ("%s: %s compiler not installed on this system",
6545 input_filename
, &input_file_compiler
->spec
[1]);
6546 this_file_error
= 1;
6550 value
= do_spec (input_file_compiler
->spec
);
6551 infiles
[i
].preprocessed
= true;
6552 if (!have_o_argbuf_index
)
6553 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6554 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6555 infiles
[i
].incompiler
6556 = lookup_compiler (infiles
[i
].name
,
6557 strlen (infiles
[i
].name
),
6558 infiles
[i
].language
);
6561 this_file_error
= 1;
6565 if (this_file_error
)
6567 delete_failure_queue ();
6571 clear_failure_queue ();
6573 combine_inputs
= save_combine_inputs
;
6576 for (i
= 0; (int) i
< n_infiles
; i
++)
6578 int this_file_error
= 0;
6580 /* Tell do_spec what to substitute for %i. */
6582 input_file_number
= i
;
6583 set_input (infiles
[i
].name
);
6585 if (infiles
[i
].compiled
)
6588 /* Use the same thing in %o, unless cp->spec says otherwise. */
6590 outfiles
[i
] = input_filename
;
6592 /* Figure out which compiler from the file's suffix. */
6594 if (! combine_inputs
)
6596 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6597 infiles
[i
].language
);
6599 input_file_compiler
= infiles
[i
].incompiler
;
6601 if (input_file_compiler
)
6603 /* Ok, we found an applicable compiler. Run its spec. */
6605 if (input_file_compiler
->spec
[0] == '#')
6607 error ("%s: %s compiler not installed on this system",
6608 input_filename
, &input_file_compiler
->spec
[1]);
6609 this_file_error
= 1;
6613 value
= do_spec (input_file_compiler
->spec
);
6614 infiles
[i
].compiled
= true;
6616 this_file_error
= 1;
6620 /* If this file's name does not contain a recognized suffix,
6621 record it as explicit linker input. */
6624 explicit_link_files
[i
] = 1;
6626 /* Clear the delete-on-failure queue, deleting the files in it
6627 if this compilation failed. */
6629 if (this_file_error
)
6631 delete_failure_queue ();
6634 /* If this compilation succeeded, don't delete those files later. */
6635 clear_failure_queue ();
6638 /* Reset the input file name to the first compile/object file name, for use
6639 with %b in LINK_SPEC. We use the first input file that we can find
6640 a compiler to compile it instead of using infiles.language since for
6641 languages other than C we use aliases that we then lookup later. */
6646 for (i
= 0; i
< n_infiles
; i
++)
6647 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6649 set_input (infiles
[i
].name
);
6654 if (error_count
== 0)
6656 /* Make sure INPUT_FILE_NUMBER points to first available open
6658 input_file_number
= n_infiles
;
6659 if (lang_specific_pre_link ())
6663 /* Determine if there are any linker input files. */
6664 num_linker_inputs
= 0;
6665 for (i
= 0; (int) i
< n_infiles
; i
++)
6666 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6667 num_linker_inputs
++;
6669 /* Run ld to link all the compiler output files. */
6671 if (num_linker_inputs
> 0 && error_count
== 0)
6673 int tmp
= execution_count
;
6675 /* We'll use ld if we can't find collect2. */
6676 if (! strcmp (linker_name_spec
, "collect2"))
6678 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6680 linker_name_spec
= "ld";
6682 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6684 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6685 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6687 value
= do_spec (link_command_spec
);
6690 linker_was_run
= (tmp
!= execution_count
);
6693 /* If options said don't run linker,
6694 complain about input files to be given to the linker. */
6696 if (! linker_was_run
&& error_count
== 0)
6697 for (i
= 0; (int) i
< n_infiles
; i
++)
6698 if (explicit_link_files
[i
])
6699 error ("%s: linker input file unused because linking not done",
6702 /* Delete some or all of the temporary files we made. */
6705 delete_failure_queue ();
6706 delete_temp_files ();
6708 if (print_help_list
)
6710 printf (("\nFor bug reporting instructions, please see:\n"));
6711 printf ("%s\n", bug_report_url
);
6714 return (signal_count
!= 0 ? 2
6715 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6719 /* Find the proper compilation spec for the file name NAME,
6720 whose length is LENGTH. LANGUAGE is the specified language,
6721 or 0 if this file is to be passed to the linker. */
6723 static struct compiler
*
6724 lookup_compiler (const char *name
, size_t length
, const char *language
)
6726 struct compiler
*cp
;
6728 /* If this was specified by the user to be a linker input, indicate that. */
6729 if (language
!= 0 && language
[0] == '*')
6732 /* Otherwise, look for the language, if one is spec'd. */
6735 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6736 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6739 error ("language %s not recognized", language
);
6743 /* Look for a suffix. */
6744 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6746 if (/* The suffix `-' matches only the file name `-'. */
6747 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6748 || (strlen (cp
->suffix
) < length
6749 /* See if the suffix matches the end of NAME. */
6750 && !strcmp (cp
->suffix
,
6751 name
+ length
- strlen (cp
->suffix
))
6756 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6757 /* Look again, but case-insensitively this time. */
6759 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6761 if (/* The suffix `-' matches only the file name `-'. */
6762 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6763 || (strlen (cp
->suffix
) < length
6764 /* See if the suffix matches the end of NAME. */
6765 && ((!strcmp (cp
->suffix
,
6766 name
+ length
- strlen (cp
->suffix
))
6767 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6768 && !strcasecmp (cp
->suffix
,
6769 name
+ length
- strlen (cp
->suffix
)))
6775 if (cp
>= compilers
)
6777 if (cp
->spec
[0] != '@')
6778 /* A non-alias entry: return it. */
6781 /* An alias entry maps a suffix to a language.
6782 Search for the language; pass 0 for NAME and LENGTH
6783 to avoid infinite recursion if language not found. */
6784 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6790 save_string (const char *s
, int len
)
6792 char *result
= XNEWVEC (char, len
+ 1);
6794 memcpy (result
, s
, len
);
6800 pfatal_with_name (const char *name
)
6802 perror_with_name (name
);
6803 delete_temp_files ();
6808 perror_with_name (const char *name
)
6810 error ("%s: %s", name
, xstrerror (errno
));
6813 /* Output an error message and exit. */
6816 fancy_abort (const char *file
, int line
, const char *func
)
6818 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6821 /* Output an error message and exit. */
6824 fatal_ice (const char *cmsgid
, ...)
6828 va_start (ap
, cmsgid
);
6830 fprintf (stderr
, "%s: ", programname
);
6831 vfprintf (stderr
, _(cmsgid
), ap
);
6833 fprintf (stderr
, "\n");
6834 delete_temp_files ();
6835 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
6839 fatal (const char *cmsgid
, ...)
6843 va_start (ap
, cmsgid
);
6845 fprintf (stderr
, "%s: ", programname
);
6846 vfprintf (stderr
, _(cmsgid
), ap
);
6848 fprintf (stderr
, "\n");
6849 delete_temp_files ();
6853 /* The argument is actually c-format, not gcc-internal-format,
6854 but because functions with identical names are used through
6855 the rest of the compiler with gcc-internal-format, we just
6856 need to hope all users of these functions use the common
6857 subset between c-format and gcc-internal-format. */
6860 error (const char *gmsgid
, ...)
6864 va_start (ap
, gmsgid
);
6865 fprintf (stderr
, "%s: ", programname
);
6866 vfprintf (stderr
, _(gmsgid
), ap
);
6869 fprintf (stderr
, "\n");
6873 notice (const char *cmsgid
, ...)
6877 va_start (ap
, cmsgid
);
6878 vfprintf (stderr
, _(cmsgid
), ap
);
6883 validate_switches_from_spec (const char *spec
)
6885 const char *p
= spec
;
6888 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6889 /* We have a switch spec. */
6890 p
= validate_switches (p
+ 1);
6894 validate_all_switches (void)
6896 struct compiler
*comp
;
6897 struct spec_list
*spec
;
6899 for (comp
= compilers
; comp
->spec
; comp
++)
6900 validate_switches_from_spec (comp
->spec
);
6902 /* Look through the linked list of specs read from the specs file. */
6903 for (spec
= specs
; spec
; spec
= spec
->next
)
6904 validate_switches_from_spec (*spec
->ptr_spec
);
6906 validate_switches_from_spec (link_command_spec
);
6909 /* Look at the switch-name that comes after START
6910 and mark as valid all supplied switches that match it. */
6913 validate_switches (const char *start
)
6915 const char *p
= start
;
6919 bool suffix
= false;
6920 bool starred
= false;
6922 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6935 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6936 || *p
== ',' || *p
== '.' || *p
== '@')
6941 starred
= true, p
++;
6947 /* Mark all matching switches as valid. */
6948 for (i
= 0; i
< n_switches
; i
++)
6949 if (!strncmp (switches
[i
].part1
, atom
, len
)
6950 && (starred
|| switches
[i
].part1
[len
] == 0))
6951 switches
[i
].validated
= 1;
6955 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6958 if (*p
&& p
[-1] == ':')
6960 while (*p
&& *p
!= ';' && *p
!= '}')
6965 if (*p
== '{' || *p
== '<')
6966 p
= validate_switches (p
+1);
6967 else if (p
[0] == 'W' && p
[1] == '{')
6968 p
= validate_switches (p
+2);
6975 if (*p
&& p
[-1] == ';')
6989 static struct mdswitchstr
*mdswitches
;
6990 static int n_mdswitches
;
6992 /* Check whether a particular argument was used. The first time we
6993 canonicalize the switches to keep only the ones we care about. */
6996 used_arg (const char *p
, int len
)
7001 const char *replace
;
7006 static struct mswitchstr
*mswitches
;
7007 static int n_mswitches
;
7012 struct mswitchstr
*matches
;
7016 /* Break multilib_matches into the component strings of string
7017 and replacement string. */
7018 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7022 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
7024 q
= multilib_matches
;
7033 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7037 matches
[i
].len
= q
- matches
[i
].str
;
7039 matches
[i
].replace
= ++q
;
7040 while (*q
!= ';' && *q
!= '\0')
7043 goto invalid_matches
;
7046 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7052 /* Now build a list of the replacement string for switches that we care
7053 about. Make sure we allocate at least one entry. This prevents
7054 xmalloc from calling fatal, and prevents us from re-executing this
7057 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7058 for (i
= 0; i
< n_switches
; i
++)
7059 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
7061 int xlen
= strlen (switches
[i
].part1
);
7062 for (j
= 0; j
< cnt
; j
++)
7063 if (xlen
== matches
[j
].len
7064 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7066 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7067 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7068 mswitches
[n_mswitches
].replace
= (char *) 0;
7069 mswitches
[n_mswitches
].rep_len
= 0;
7075 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7076 on the command line nor any options mutually incompatible with
7078 for (i
= 0; i
< n_mdswitches
; i
++)
7082 for (q
= multilib_options
; *q
!= '\0'; q
++)
7088 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7089 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7091 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7098 if (*q
!= ' ' && *q
!= '\0')
7100 while (*r
!= ' ' && *r
!= '\0')
7103 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7106 if (used_arg (r
, q
- r
))
7111 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7112 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7113 mswitches
[n_mswitches
].replace
= (char *) 0;
7114 mswitches
[n_mswitches
].rep_len
= 0;
7127 for (i
= 0; i
< n_mswitches
; i
++)
7128 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7135 default_arg (const char *p
, int len
)
7139 for (i
= 0; i
< n_mdswitches
; i
++)
7140 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7146 /* Work out the subdirectory to use based on the options. The format of
7147 multilib_select is a list of elements. Each element is a subdirectory
7148 name followed by a list of options followed by a semicolon. The format
7149 of multilib_exclusions is the same, but without the preceding
7150 directory. First gcc will check the exclusions, if none of the options
7151 beginning with an exclamation point are present, and all of the other
7152 options are present, then we will ignore this completely. Passing
7153 that, gcc will consider each multilib_select in turn using the same
7154 rules for matching the options. If a match is found, that subdirectory
7158 set_multilib_dir (void)
7161 unsigned int this_path_len
;
7162 const char *this_path
, *this_arg
;
7163 const char *start
, *end
;
7165 int ok
, ndfltok
, first
;
7168 start
= multilib_defaults
;
7169 while (*start
== ' ' || *start
== '\t')
7171 while (*start
!= '\0')
7174 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7176 while (*start
== ' ' || *start
== '\t')
7184 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7185 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7187 while (*start
== ' ' || *start
== '\t')
7193 for (end
= start
+ 1;
7194 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7197 obstack_grow (&multilib_obstack
, start
, end
- start
);
7198 obstack_1grow (&multilib_obstack
, 0);
7199 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7200 mdswitches
[i
++].len
= end
- start
;
7207 p
= multilib_exclusions
;
7210 /* Ignore newlines. */
7217 /* Check the arguments. */
7224 fatal ("multilib exclusions '%s' is invalid",
7225 multilib_exclusions
);
7235 while (*p
!= ' ' && *p
!= ';')
7238 goto invalid_exclusions
;
7242 if (*this_arg
!= '!')
7250 ok
= used_arg (this_arg
, p
- this_arg
);
7265 p
= multilib_select
;
7268 /* Ignore newlines. */
7275 /* Get the initial path. */
7282 fatal ("multilib select '%s' is invalid",
7287 this_path_len
= p
- this_path
;
7289 /* Check the arguments. */
7296 goto invalid_select
;
7305 while (*p
!= ' ' && *p
!= ';')
7308 goto invalid_select
;
7312 if (*this_arg
!= '!')
7320 /* If this is a default argument, we can just ignore it.
7321 This is true even if this_arg begins with '!'. Beginning
7322 with '!' does not mean that this argument is necessarily
7323 inappropriate for this library: it merely means that
7324 there is a more specific library which uses this
7325 argument. If this argument is a default, we need not
7326 consider that more specific library. */
7327 ok
= used_arg (this_arg
, p
- this_arg
);
7334 if (default_arg (this_arg
, p
- this_arg
))
7343 if (this_path_len
!= 1
7344 || this_path
[0] != '.')
7346 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7349 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7350 new_multilib_dir
[this_path_len
] = '\0';
7351 q
= strchr (new_multilib_dir
, ':');
7354 multilib_dir
= new_multilib_dir
;
7361 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7363 while (q
< end
&& *q
!= ':')
7367 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7368 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7369 new_multilib_os_dir
[end
- q
- 1] = '\0';
7370 multilib_os_dir
= new_multilib_os_dir
;
7378 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7379 && strcmp (multilib_os_dir
, ".") == 0)
7381 free ((char *) multilib_os_dir
);
7382 multilib_os_dir
= NULL
;
7384 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7385 multilib_os_dir
= multilib_dir
;
7388 /* Print out the multiple library subdirectory selection
7389 information. This prints out a series of lines. Each line looks
7390 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7391 required. Only the desired options are printed out, the negative
7392 matches. The options are print without a leading dash. There are
7393 no spaces to make it easy to use the information in the shell.
7394 Each subdirectory is printed only once. This assumes the ordering
7395 generated by the genmultilib script. Also, we leave out ones that match
7399 print_multilib_info (void)
7401 const char *p
= multilib_select
;
7402 const char *last_path
= 0, *this_path
;
7404 unsigned int last_path_len
= 0;
7409 /* Ignore newlines. */
7416 /* Get the initial path. */
7423 fatal ("multilib select '%s' is invalid", multilib_select
);
7429 /* When --disable-multilib was used but target defines
7430 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7431 to find multilib_os_dir, so skip them from output. */
7432 if (this_path
[0] == '.' && this_path
[1] == ':')
7435 /* Check for matches with the multilib_exclusions. We don't bother
7436 with the '!' in either list. If any of the exclusion rules match
7437 all of its options with the select rule, we skip it. */
7439 const char *e
= multilib_exclusions
;
7440 const char *this_arg
;
7445 /* Ignore newlines. */
7452 /* Check the arguments. */
7461 fatal ("multilib exclusion '%s' is invalid",
7462 multilib_exclusions
);
7473 while (*e
!= ' ' && *e
!= ';')
7476 goto invalid_exclusion
;
7484 int len
= e
- this_arg
;
7487 goto invalid_select
;
7491 while (*q
!= ' ' && *q
!= ';')
7494 goto invalid_select
;
7498 if (! strncmp (arg
, this_arg
,
7499 (len
< q
- arg
) ? q
- arg
: len
)
7500 || default_arg (this_arg
, e
- this_arg
))
7530 /* If this is a duplicate, skip it. */
7531 skip
= (last_path
!= 0
7532 && (unsigned int) (p
- this_path
) == last_path_len
7533 && ! strncmp (last_path
, this_path
, last_path_len
));
7535 last_path
= this_path
;
7536 last_path_len
= p
- this_path
;
7539 /* If this directory requires any default arguments, we can skip
7540 it. We will already have printed a directory identical to
7541 this one which does not require that default argument. */
7552 goto invalid_select
;
7559 while (*q
!= ' ' && *q
!= ';')
7562 goto invalid_select
;
7567 && default_arg (arg
, q
- arg
))
7582 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7593 goto invalid_select
;
7601 use_arg
= *p
!= '!';
7606 while (*p
!= ' ' && *p
!= ';')
7609 goto invalid_select
;
7621 /* If there are extra options, print them now. */
7622 if (multilib_extra
&& *multilib_extra
)
7624 int print_at
= TRUE
;
7627 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7648 /* if-exists built-in spec function.
7650 Checks to see if the file specified by the absolute pathname in
7651 ARGS exists. Returns that pathname if found.
7653 The usual use for this function is to check for a library file
7654 (whose name has been expanded with %s). */
7657 if_exists_spec_function (int argc
, const char **argv
)
7659 /* Must have only one argument. */
7660 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7666 /* if-exists-else built-in spec function.
7668 This is like if-exists, but takes an additional argument which
7669 is returned if the first argument does not exist. */
7672 if_exists_else_spec_function (int argc
, const char **argv
)
7674 /* Must have exactly two arguments. */
7678 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7684 /* replace-outfile built-in spec function.
7686 This looks for the first argument in the outfiles array's name and
7687 replaces it with the second argument. */
7690 replace_outfile_spec_function (int argc
, const char **argv
)
7693 /* Must have exactly two arguments. */
7697 for (i
= 0; i
< n_infiles
; i
++)
7699 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7700 outfiles
[i
] = xstrdup (argv
[1]);
7705 /* Given two version numbers, compares the two numbers.
7706 A version number must match the regular expression
7707 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7710 compare_version_strings (const char *v1
, const char *v2
)
7715 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7716 REG_EXTENDED
| REG_NOSUB
) != 0)
7718 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7719 if (rresult
== REG_NOMATCH
)
7720 fatal ("invalid version number `%s'", v1
);
7721 else if (rresult
!= 0)
7723 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7724 if (rresult
== REG_NOMATCH
)
7725 fatal ("invalid version number `%s'", v2
);
7726 else if (rresult
!= 0)
7729 return strverscmp (v1
, v2
);
7733 /* version_compare built-in spec function.
7735 This takes an argument of the following form:
7737 <comparison-op> <arg1> [<arg2>] <switch> <result>
7739 and produces "result" if the comparison evaluates to true,
7740 and nothing if it doesn't.
7742 The supported <comparison-op> values are:
7744 >= true if switch is a later (or same) version than arg1
7746 < true if switch is an earlier version than arg1
7748 >< true if switch is arg1 or later, and earlier than arg2
7749 <> true if switch is earlier than arg1 or is arg2 or later
7751 If the switch is not present, the condition is false unless
7752 the first character of the <comparison-op> is '!'.
7755 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7756 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7759 version_compare_spec_function (int argc
, const char **argv
)
7763 const char *switch_value
= NULL
;
7768 fatal ("too few arguments to %%:version-compare");
7769 if (argv
[0][0] == '\0')
7771 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7773 if (argc
!= nargs
+ 3)
7774 fatal ("too many arguments to %%:version-compare");
7776 switch_len
= strlen (argv
[nargs
+ 1]);
7777 for (i
= 0; i
< n_switches
; i
++)
7778 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7779 && check_live_switch (i
, switch_len
))
7780 switch_value
= switches
[i
].part1
+ switch_len
;
7782 if (switch_value
== NULL
)
7786 comp1
= compare_version_strings (switch_value
, argv
[1]);
7788 comp2
= compare_version_strings (switch_value
, argv
[2]);
7790 comp2
= -1; /* This value unused. */
7793 switch (argv
[0][0] << 8 | argv
[0][1])
7795 case '>' << 8 | '=':
7796 result
= comp1
>= 0;
7798 case '!' << 8 | '<':
7799 result
= comp1
>= 0 || switch_value
== NULL
;
7804 case '!' << 8 | '>':
7805 result
= comp1
< 0 || switch_value
== NULL
;
7807 case '>' << 8 | '<':
7808 result
= comp1
>= 0 && comp2
< 0;
7810 case '<' << 8 | '>':
7811 result
= comp1
< 0 || comp2
>= 0;
7815 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
7820 return argv
[nargs
+ 2];
7823 /* %:include builtin spec function. This differs from %include in that it
7824 can be nested inside a spec, and thus be conditionalized. It takes
7825 one argument, the filename, and looks for it in the startfile path.
7826 The result is always NULL, i.e. an empty expansion. */
7829 include_spec_function (int argc
, const char **argv
)
7836 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, 0);
7837 read_specs (file
? file
: argv
[0], FALSE
);