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 *getenv_spec_function (int, const char **);
354 static const char *if_exists_spec_function (int, const char **);
355 static const char *if_exists_else_spec_function (int, const char **);
356 static const char *replace_outfile_spec_function (int, const char **);
357 static const char *version_compare_spec_function (int, const char **);
358 static const char *include_spec_function (int, const char **);
360 /* The Specs Language
362 Specs are strings containing lines, each of which (if not blank)
363 is made up of a program name, and arguments separated by spaces.
364 The program name must be exact and start from root, since no path
365 is searched and it is unreliable to depend on the current working directory.
366 Redirection of input or output is not supported; the subprograms must
367 accept filenames saying what files to read and write.
369 In addition, the specs can contain %-sequences to substitute variable text
370 or for conditional text. Here is a table of all defined %-sequences.
371 Note that spaces are not generated automatically around the results of
372 expanding these sequences; therefore, you can concatenate them together
373 or with constant text in a single argument.
375 %% substitute one % into the program name or argument.
376 %i substitute the name of the input file being processed.
377 %b substitute the basename of the input file being processed.
378 This is the substring up to (and not including) the last period
379 and not including the directory.
380 %B same as %b, but include the file suffix (text after the last period).
382 substitute a file name that has suffix SUFFIX and is chosen
383 once per compilation, and mark the argument a la %d. To reduce
384 exposure to denial-of-service attacks, the file name is now
385 chosen in a way that is hard to predict even when previously
386 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
387 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
388 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
389 had been pre-processed. Previously, %g was simply substituted
390 with a file name chosen once per compilation, without regard
391 to any appended suffix (which was therefore treated just like
392 ordinary text), making such attacks more likely to succeed.
394 like %g, but if -pipe is in effect, expands simply to "-".
396 like %g, but if -pipe is in effect, expands to nothing. (We have both
397 %| and %m to accommodate differences between system assemblers; see
398 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
400 like %g, but generates a new temporary file name even if %uSUFFIX
403 substitutes the last file name generated with %uSUFFIX, generating a
404 new one if there is no such last file name. In the absence of any
405 %uSUFFIX, this is just like %gSUFFIX, except they don't share
406 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
407 would involve the generation of two distinct file names, one
408 for each `%g.s' and another for each `%U.s'. Previously, %U was
409 simply substituted with a file name chosen for the previous %u,
410 without regard to any appended suffix.
412 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
413 writable, and if save-temps is off; otherwise, substitute the name
414 of a temporary file, just like %u. This temporary file is not
415 meant for communication between processes, but rather as a junk
418 substitutes .SUFFIX for the suffixes of a matched switch's args when
419 it is subsequently output with %*. SUFFIX is terminated by the next
421 %d marks the argument containing or following the %d as a
422 temporary file name, so that that file will be deleted if CC exits
423 successfully. Unlike %g, this contributes no text to the argument.
424 %w marks the argument containing or following the %w as the
425 "output file" of this compilation. This puts the argument
426 into the sequence of arguments that %o will substitute later.
427 %V indicates that this compilation produces no "output file".
429 like %{...} but mark last argument supplied within
430 as a file to be deleted on failure.
431 %o substitutes the names of all the output files, with spaces
432 automatically placed around them. You should write spaces
433 around the %o as well or the results are undefined.
434 %o is for use in the specs for running the linker.
435 Input files whose names have no recognized suffix are not compiled
436 at all, but they are included among the output files, so they will
438 %O substitutes the suffix for object files. Note that this is
439 handled specially when it immediately follows %g, %u, or %U
440 (with or without a suffix argument) because of the need for
441 those to form complete file names. The handling is such that
442 %O is treated exactly as if it had already been substituted,
443 except that %g, %u, and %U do not currently support additional
444 SUFFIX characters following %O as they would following, for
446 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
447 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
448 and -B options) and -imultilib as necessary.
449 %s current argument is the name of a library or startup file of some sort.
450 Search for that file in a standard list of directories
451 and substitute the full name found.
452 %eSTR Print STR as an error message. STR is terminated by a newline.
453 Use this when inconsistent options are detected.
454 %nSTR Print STR as a notice. STR is terminated by a newline.
455 %x{OPTION} Accumulate an option for %X.
456 %X Output the accumulated linker options specified by compilations.
457 %Y Output the accumulated assembler options specified by compilations.
458 %Z Output the accumulated preprocessor options specified by compilations.
459 %a process ASM_SPEC as a spec.
460 This allows config.h to specify part of the spec for running as.
461 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
462 used here. This can be used to run a post-processor after the
463 assembler has done its job.
464 %D Dump out a -L option for each directory in startfile_prefixes.
465 If multilib_dir is set, extra entries are generated with it affixed.
466 %l process LINK_SPEC as a spec.
467 %L process LIB_SPEC as a spec.
468 %G process LIBGCC_SPEC as a spec.
469 %R Output the concatenation of target_system_root and
470 target_sysroot_suffix.
471 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
472 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
473 %C process CPP_SPEC as a spec.
474 %1 process CC1_SPEC as a spec.
475 %2 process CC1PLUS_SPEC as a spec.
476 %* substitute the variable part of a matched option. (See below.)
477 Note that each comma in the substituted string is replaced by
479 %<S remove all occurrences of -S from the command line.
480 Note - this command is position dependent. % commands in the
481 spec string before this one will see -S, % commands in the
482 spec string after this one will not.
483 %<S* remove all occurrences of all switches beginning with -S from the
486 Call the named function FUNCTION, passing it ARGS. ARGS is
487 first processed as a nested spec string, then split into an
488 argument vector in the usual fashion. The function returns
489 a string which is processed as if it had appeared literally
490 as part of the current spec.
491 %{S} substitutes the -S switch, if that switch was given to CC.
492 If that switch was not specified, this substitutes nothing.
493 Here S is a metasyntactic variable.
494 %{S*} substitutes all the switches specified to CC whose names start
495 with -S. This is used for -o, -I, etc; switches that take
496 arguments. CC considers `-o foo' as being one switch whose
497 name starts with `o'. %{o*} would substitute this text,
498 including the space; thus, two arguments would be generated.
499 %{S*&T*} likewise, but preserve order of S and T options (the order
500 of S and T in the spec is not significant). Can be any number
501 of ampersand-separated variables; for each the wild card is
502 optional. Useful for CPP as %{D*&U*&A*}.
504 %{S:X} substitutes X, if the -S switch was given to CC.
505 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
506 %{S*:X} substitutes X if one or more switches whose names start
507 with -S was given to CC. Normally X is substituted only
508 once, no matter how many such switches appeared. However,
509 if %* appears somewhere in X, then X will be substituted
510 once for each matching switch, with the %* replaced by the
511 part of that switch that matched the '*'.
512 %{.S:X} substitutes X, if processing a file with suffix S.
513 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
515 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
516 combined with !, ., and * as above binding stronger than the OR.
517 If %* appears in X, all of the alternatives must be starred, and
518 only the first matching alternative is substituted.
519 %{S:X; if S was given to CC, substitutes X;
520 T:Y; else if T was given to CC, substitutes Y;
521 :D} else substitutes D. There can be as many clauses as you need.
522 This may be combined with ., !, |, and * as above.
524 %(Spec) processes a specification defined in a specs file as *Spec:
525 %[Spec] as above, but put __ around -D arguments
527 The conditional text X in a %{S:X} or similar construct may contain
528 other nested % constructs or spaces, or even newlines. They are
529 processed as usual, as described above. Trailing white space in X is
530 ignored. White space may also appear anywhere on the left side of the
531 colon in these constructs, except between . or * and the corresponding
534 The -O, -f, -m, and -W switches are handled specifically in these
535 constructs. If another value of -O or the negated form of a -f, -m, or
536 -W switch is found later in the command line, the earlier switch
537 value is ignored, except with {S*} where S is just one letter; this
538 passes all matching options.
540 The character | at the beginning of the predicate text is used to indicate
541 that a command should be piped to the following command, but only if -pipe
544 Note that it is built into CC which switches take arguments and which
545 do not. You might think it would be useful to generalize this to
546 allow each compiler's spec to say which switches take arguments. But
547 this cannot be done in a consistent fashion. CC cannot even decide
548 which input files have been specified without knowing which switches
549 take arguments, and it must know which input files to compile in order
550 to tell which compilers to run.
552 CC also knows implicitly that arguments starting in `-l' are to be
553 treated as compiler output files, and passed to the linker in their
554 proper position among the other output files. */
556 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
558 /* config.h can define ASM_SPEC to provide extra args to the assembler
559 or extra switch-translations. */
564 /* config.h can define ASM_FINAL_SPEC to run a post processor after
565 the assembler has run. */
566 #ifndef ASM_FINAL_SPEC
567 #define ASM_FINAL_SPEC ""
570 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
571 or extra switch-translations. */
576 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
577 or extra switch-translations. */
582 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
583 or extra switch-translations. */
585 #define CC1PLUS_SPEC ""
588 /* config.h can define LINK_SPEC to provide extra args to the linker
589 or extra switch-translations. */
594 /* config.h can define LIB_SPEC to override the default libraries. */
596 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
601 /* XXX: valid only for GNU ld */
602 /* XXX: should exactly match hooks provided by libmudflap.a */
603 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
604 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
605 --wrap=mmap --wrap=munmap --wrap=alloca\
606 } %{fmudflapth: --wrap=pthread_create\
607 }} %{fmudflap|fmudflapth: --wrap=main}"
610 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
613 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
616 #if defined(REAL_LIBGCC_SPEC)
617 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
618 #elif defined(LINK_LIBGCC_SPECIAL_1)
619 /* Have gcc do the search for libgcc.a. */
620 #define LIBGCC_SPEC "libgcc.a%s"
622 #define LIBGCC_SPEC "-lgcc"
626 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
627 #ifndef STARTFILE_SPEC
628 #define STARTFILE_SPEC \
629 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
632 /* config.h can define SWITCHES_NEED_SPACES to control which options
633 require spaces between the option and the argument. */
634 #ifndef SWITCHES_NEED_SPACES
635 #define SWITCHES_NEED_SPACES ""
638 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
640 #define ENDFILE_SPEC ""
644 #define LINKER_NAME "collect2"
647 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
649 #ifndef ASM_DEBUG_SPEC
650 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
651 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
652 # define ASM_DEBUG_SPEC \
653 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
654 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
655 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
657 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
658 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
660 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
661 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
665 #ifndef ASM_DEBUG_SPEC
666 # define ASM_DEBUG_SPEC ""
669 /* Here is the spec for running the linker, after compiling all files. */
671 /* This is overridable by the target in case they need to specify the
672 -lgcc and -lc order specially, yet not require them to override all
673 of LINK_COMMAND_SPEC. */
674 #ifndef LINK_GCC_C_SEQUENCE_SPEC
675 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
678 #ifndef LINK_SSP_SPEC
679 #ifdef TARGET_LIBC_PROVIDES_SSP
680 #define LINK_SSP_SPEC "%{fstack-protector:}"
682 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
686 #ifndef LINK_PIE_SPEC
688 #define LINK_PIE_SPEC "%{pie:-pie} "
690 #define LINK_PIE_SPEC "%{pie:} "
694 /* -u* was put back because both BSD and SysV seem to support it. */
695 /* %{static:} simply prevents an error message if the target machine
696 doesn't handle -static. */
697 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
698 scripts which exist in user specified directories, or in standard
700 #ifndef LINK_COMMAND_SPEC
701 #define LINK_COMMAND_SPEC "\
702 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
703 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
704 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
705 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
706 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
707 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
708 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
709 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
712 #ifndef LINK_LIBGCC_SPEC
713 /* Generate -L options for startfile prefix list. */
714 # define LINK_LIBGCC_SPEC "%D"
717 #ifndef STARTFILE_PREFIX_SPEC
718 # define STARTFILE_PREFIX_SPEC ""
722 # define SYSROOT_SPEC "--sysroot=%R"
725 #ifndef SYSROOT_SUFFIX_SPEC
726 # define SYSROOT_SUFFIX_SPEC ""
729 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
730 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
733 static const char *asm_debug
;
734 static const char *cpp_spec
= CPP_SPEC
;
735 static const char *cc1_spec
= CC1_SPEC
;
736 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
737 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
738 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
739 static const char *asm_spec
= ASM_SPEC
;
740 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
741 static const char *link_spec
= LINK_SPEC
;
742 static const char *lib_spec
= LIB_SPEC
;
743 static const char *mfwrap_spec
= MFWRAP_SPEC
;
744 static const char *mflib_spec
= MFLIB_SPEC
;
745 static const char *link_gomp_spec
= "";
746 static const char *libgcc_spec
= LIBGCC_SPEC
;
747 static const char *endfile_spec
= ENDFILE_SPEC
;
748 static const char *startfile_spec
= STARTFILE_SPEC
;
749 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
750 static const char *linker_name_spec
= LINKER_NAME
;
751 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
752 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
753 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
754 static const char *sysroot_spec
= SYSROOT_SPEC
;
755 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
756 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
758 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
759 There should be no need to override these in target dependent files,
760 but we need to copy them to the specs file so that newer versions
761 of the GCC driver can correctly drive older tool chains with the
762 appropriate -B options. */
764 /* When cpplib handles traditional preprocessing, get rid of this, and
765 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
766 that we default the front end language better. */
767 static const char *trad_capable_cpp
=
768 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
770 /* We don't wrap .d files in %W{} since a missing .d file, and
771 therefore no dependency entry, confuses make into thinking a .o
772 file that happens to exist is up-to-date. */
773 static const char *cpp_unique_options
=
774 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
775 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
776 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
777 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
778 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
779 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
780 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
781 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
782 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
783 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
786 /* This contains cpp options which are common with cc1_options and are passed
787 only when preprocessing only to avoid duplication. We pass the cc1 spec
788 options to the preprocessor so that it the cc1 spec may manipulate
789 options used to set target flags. Those special target flags settings may
790 in turn cause preprocessor symbols to be defined specially. */
791 static const char *cpp_options
=
792 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
793 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
794 %{undef} %{save-temps:-fpch-preprocess}";
796 /* This contains cpp options which are not passed when the preprocessor
797 output will be used by another program. */
798 static const char *cpp_debug_options
= "%{d*}";
800 /* NB: This is shared amongst all front-ends. */
801 static const char *cc1_options
=
802 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
803 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
804 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
805 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
806 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
807 %{Qn:-fno-ident} %{--help:--help}\
808 %{--target-help:--target-help}\
809 %{--help=*:--help=%(VALUE)}\
810 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
811 %{fsyntax-only:-o %j} %{-param*}\
812 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
813 %{coverage:-fprofile-arcs -ftest-coverage}";
815 static const char *asm_options
=
816 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
818 static const char *invoke_as
=
819 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
820 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
822 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
825 /* Some compilers have limits on line lengths, and the multilib_select
826 and/or multilib_matches strings can be very long, so we build them at
828 static struct obstack multilib_obstack
;
829 static const char *multilib_select
;
830 static const char *multilib_matches
;
831 static const char *multilib_defaults
;
832 static const char *multilib_exclusions
;
834 /* Check whether a particular argument is a default argument. */
836 #ifndef MULTILIB_DEFAULTS
837 #define MULTILIB_DEFAULTS { "" }
840 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
842 #ifndef DRIVER_SELF_SPECS
843 #define DRIVER_SELF_SPECS ""
846 /* Adding -fopenmp should imply pthreads. This is particularly important
847 for targets that use different start files and suchlike. */
848 #ifndef GOMP_SELF_SPECS
849 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
852 static const char *const driver_self_specs
[] = {
853 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
856 #ifndef OPTION_DEFAULT_SPECS
857 #define OPTION_DEFAULT_SPECS { "", "" }
866 static const struct default_spec
867 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
871 struct user_specs
*next
;
872 const char *filename
;
875 static struct user_specs
*user_specs_head
, *user_specs_tail
;
877 #ifndef SWITCH_TAKES_ARG
878 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
881 #ifndef WORD_SWITCH_TAKES_ARG
882 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
885 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
886 /* This defines which switches stop a full compilation. */
887 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
888 ((CHAR) == 'c' || (CHAR) == 'S')
890 #ifndef SWITCH_CURTAILS_COMPILATION
891 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
892 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
896 /* Record the mapping from file suffixes for compilation specs. */
900 const char *suffix
; /* Use this compiler for input files
901 whose names end in this suffix. */
903 const char *spec
; /* To use this compiler, run this spec. */
905 const char *cpp_spec
; /* If non-NULL, substitute this spec
906 for `%C', rather than the usual
908 const int combinable
; /* If nonzero, compiler can deal with
909 multiple source files at once (IMA). */
910 const int needs_preprocessing
; /* If nonzero, source files need to
911 be run through a preprocessor. */
914 /* Pointer to a vector of `struct compiler' that gives the spec for
915 compiling a file, based on its suffix.
916 A file that does not end in any of these suffixes will be passed
917 unchanged to the loader and nothing else will be done to it.
919 An entry containing two 0s is used to terminate the vector.
921 If multiple entries match a file, the last matching one is used. */
923 static struct compiler
*compilers
;
925 /* Number of entries in `compilers', not counting the null terminator. */
927 static int n_compilers
;
929 /* The default list of file name suffixes and their compilation specs. */
931 static const struct compiler default_compilers
[] =
933 /* Add lists of suffixes of known languages here. If those languages
934 were not present when we built the driver, we will hit these copies
935 and be given a more meaningful error than "file not used since
936 linking is not done". */
937 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
938 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
939 {".mii", "#Objective-C++", 0, 0, 0},
940 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
941 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
942 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
943 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
944 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
945 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
946 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
947 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
948 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
949 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
950 {".r", "#Ratfor", 0, 0, 0},
951 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
952 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
953 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
954 /* Next come the entries for C. */
955 {".c", "@c", 0, 1, 1},
957 /* cc1 has an integrated ISO C preprocessor. We should invoke the
958 external preprocessor if -save-temps is given. */
959 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
961 %{traditional|ftraditional:\
962 %eGNU C no longer supports -traditional without -E}\
964 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
965 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
966 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
968 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
969 cc1 %(cpp_unique_options) %(cc1_options)}}}\
970 %{!fsyntax-only:%(invoke_as)}} \
972 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
973 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
974 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
975 cc1 %(cpp_unique_options) %(cc1_options)}}\
976 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
978 "%{!E:%e-E or -x required when input is from standard input}\
979 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
980 {".h", "@c-header", 0, 0, 0},
982 /* cc1 has an integrated ISO C preprocessor. We should invoke the
983 external preprocessor if -save-temps is given. */
984 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
986 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
987 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
988 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
990 -o %g.s %{!o*:--output-pch=%i.gch}\
991 %W{o*:--output-pch=%*}%V}\
992 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
993 cc1 %(cpp_unique_options) %(cc1_options)\
994 -o %g.s %{!o*:--output-pch=%i.gch}\
995 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
996 {".i", "@cpp-output", 0, 1, 0},
998 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
999 {".s", "@assembler", 0, 1, 0},
1001 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1002 {".S", "@assembler-with-cpp", 0, 1, 0},
1003 {"@assembler-with-cpp",
1004 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1005 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1006 %{E|M|MM:%(cpp_debug_options)}\
1007 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1008 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1010 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1011 %{E|M|MM:%(cpp_debug_options)}\
1012 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1013 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1018 /* Mark end of table. */
1022 /* Number of elements in default_compilers, not counting the terminator. */
1024 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1026 /* A vector of options to give to the linker.
1027 These options are accumulated by %x,
1028 and substituted into the linker command with %X. */
1029 static int n_linker_options
;
1030 static char **linker_options
;
1032 /* A vector of options to give to the assembler.
1033 These options are accumulated by -Wa,
1034 and substituted into the assembler command with %Y. */
1035 static int n_assembler_options
;
1036 static char **assembler_options
;
1038 /* A vector of options to give to the preprocessor.
1039 These options are accumulated by -Wp,
1040 and substituted into the preprocessor command with %Z. */
1041 static int n_preprocessor_options
;
1042 static char **preprocessor_options
;
1044 /* Define how to map long options into short ones. */
1046 /* This structure describes one mapping. */
1049 /* The long option's name. */
1050 const char *const name
;
1051 /* The equivalent short option. */
1052 const char *const equivalent
;
1053 /* Argument info. A string of flag chars; NULL equals no options.
1054 a => argument required.
1055 o => argument optional.
1056 j => join argument to equivalent, making one word.
1057 * => require other text after NAME as an argument. */
1058 const char *const arg_info
;
1061 /* This is the table of mappings. Mappings are tried sequentially
1062 for each option encountered; the first one that matches, wins. */
1064 static const struct option_map option_map
[] =
1066 {"--all-warnings", "-Wall", 0},
1067 {"--ansi", "-ansi", 0},
1068 {"--assemble", "-S", 0},
1069 {"--assert", "-A", "a"},
1070 {"--classpath", "-fclasspath=", "aj"},
1071 {"--bootclasspath", "-fbootclasspath=", "aj"},
1072 {"--CLASSPATH", "-fclasspath=", "aj"},
1073 {"--combine", "-combine", 0},
1074 {"--comments", "-C", 0},
1075 {"--comments-in-macros", "-CC", 0},
1076 {"--compile", "-c", 0},
1077 {"--debug", "-g", "oj"},
1078 {"--define-macro", "-D", "aj"},
1079 {"--dependencies", "-M", 0},
1080 {"--dump", "-d", "a"},
1081 {"--dumpbase", "-dumpbase", "a"},
1082 {"--encoding", "-fencoding=", "aj"},
1083 {"--entry", "-e", 0},
1084 {"--extra-warnings", "-W", 0},
1085 {"--extdirs", "-fextdirs=", "aj"},
1086 {"--for-assembler", "-Wa", "a"},
1087 {"--for-linker", "-Xlinker", "a"},
1088 {"--force-link", "-u", "a"},
1089 {"--coverage", "-coverage", 0},
1090 {"--imacros", "-imacros", "a"},
1091 {"--include", "-include", "a"},
1092 {"--include-barrier", "-I-", 0},
1093 {"--include-directory", "-I", "aj"},
1094 {"--include-directory-after", "-idirafter", "a"},
1095 {"--include-prefix", "-iprefix", "a"},
1096 {"--include-with-prefix", "-iwithprefix", "a"},
1097 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1098 {"--include-with-prefix-after", "-iwithprefix", "a"},
1099 {"--language", "-x", "a"},
1100 {"--library-directory", "-L", "a"},
1101 {"--machine", "-m", "aj"},
1102 {"--machine-", "-m", "*j"},
1103 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1104 {"--no-line-commands", "-P", 0},
1105 {"--no-precompiled-includes", "-noprecomp", 0},
1106 {"--no-standard-includes", "-nostdinc", 0},
1107 {"--no-standard-libraries", "-nostdlib", 0},
1108 {"--no-warnings", "-w", 0},
1109 {"--optimize", "-O", "oj"},
1110 {"--output", "-o", "a"},
1111 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1112 {"--param", "--param", "a"},
1113 {"--pass-exit-codes", "-pass-exit-codes", 0},
1114 {"--pedantic", "-pedantic", 0},
1115 {"--pedantic-errors", "-pedantic-errors", 0},
1116 {"--pie", "-pie", 0},
1117 {"--pipe", "-pipe", 0},
1118 {"--prefix", "-B", "a"},
1119 {"--preprocess", "-E", 0},
1120 {"--print-search-dirs", "-print-search-dirs", 0},
1121 {"--print-file-name", "-print-file-name=", "aj"},
1122 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1123 {"--print-missing-file-dependencies", "-MG", 0},
1124 {"--print-multi-lib", "-print-multi-lib", 0},
1125 {"--print-multi-directory", "-print-multi-directory", 0},
1126 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1127 {"--print-prog-name", "-print-prog-name=", "aj"},
1128 {"--profile", "-p", 0},
1129 {"--profile-blocks", "-a", 0},
1130 {"--quiet", "-q", 0},
1131 {"--resource", "-fcompile-resource=", "aj"},
1132 {"--save-temps", "-save-temps", 0},
1133 {"--shared", "-shared", 0},
1134 {"--silent", "-q", 0},
1135 {"--specs", "-specs=", "aj"},
1136 {"--static", "-static", 0},
1137 {"--std", "-std=", "aj"},
1138 {"--symbolic", "-symbolic", 0},
1139 {"--sysroot", "--sysroot=", "aj"},
1140 {"--time", "-time", 0},
1141 {"--trace-includes", "-H", 0},
1142 {"--traditional", "-traditional", 0},
1143 {"--traditional-cpp", "-traditional-cpp", 0},
1144 {"--trigraphs", "-trigraphs", 0},
1145 {"--undefine-macro", "-U", "aj"},
1146 {"--user-dependencies", "-MM", 0},
1147 {"--verbose", "-v", 0},
1148 {"--warn-", "-W", "*j"},
1149 {"--write-dependencies", "-MD", 0},
1150 {"--write-user-dependencies", "-MMD", 0},
1155 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1156 static const struct {
1157 const char *const option_found
;
1158 const char *const replacements
;
1159 } target_option_translations
[] =
1161 TARGET_OPTION_TRANSLATE_TABLE
,
1166 /* Translate the options described by *ARGCP and *ARGVP.
1167 Make a new vector and store it back in *ARGVP,
1168 and store its length in *ARGVC. */
1171 translate_options (int *argcp
, const char *const **argvp
)
1175 const char *const *argv
= *argvp
;
1176 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1177 const char **newv
= xmalloc (newvsize
);
1181 newv
[newindex
++] = argv
[i
++];
1185 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1189 target_option_translations
[tott_idx
].option_found
;
1192 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1199 for (sp
= target_option_translations
[tott_idx
].replacements
;
1206 newvsize
+= spaces
* sizeof (const char *);
1207 newv
= xrealloc (newv
, newvsize
);
1209 sp
= target_option_translations
[tott_idx
].replacements
;
1218 newv
[newindex
++] = np
;
1219 while (*np
!= ' ' && *np
)
1230 if (target_option_translations
[tott_idx
].option_found
)
1234 /* Translate -- options. */
1235 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1238 /* Find a mapping that applies to this option. */
1239 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1241 size_t optlen
= strlen (option_map
[j
].name
);
1242 size_t arglen
= strlen (argv
[i
]);
1243 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1244 const char *arginfo
= option_map
[j
].arg_info
;
1249 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1251 const char *arg
= 0;
1253 if (arglen
< optlen
)
1256 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1257 if (strlen (option_map
[k
].name
) >= arglen
1258 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1260 error ("ambiguous abbreviation %s", argv
[i
]);
1264 if (k
!= ARRAY_SIZE (option_map
))
1268 if (arglen
> optlen
)
1270 /* If the option has an argument, accept that. */
1271 if (argv
[i
][optlen
] == '=')
1272 arg
= argv
[i
] + optlen
+ 1;
1274 /* If this mapping requires extra text at end of name,
1275 accept that as "argument". */
1276 else if (strchr (arginfo
, '*') != 0)
1277 arg
= argv
[i
] + optlen
;
1279 /* Otherwise, extra text at end means mismatch.
1280 Try other mappings. */
1285 else if (strchr (arginfo
, '*') != 0)
1287 error ("incomplete '%s' option", option_map
[j
].name
);
1291 /* Handle arguments. */
1292 if (strchr (arginfo
, 'a') != 0)
1298 error ("missing argument to '%s' option",
1299 option_map
[j
].name
);
1306 else if (strchr (arginfo
, '*') != 0)
1308 else if (strchr (arginfo
, 'o') == 0)
1311 error ("extraneous argument to '%s' option",
1312 option_map
[j
].name
);
1316 /* Store the translation as one argv elt or as two. */
1317 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1318 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1322 newv
[newindex
++] = option_map
[j
].equivalent
;
1323 newv
[newindex
++] = arg
;
1326 newv
[newindex
++] = option_map
[j
].equivalent
;
1334 /* Handle old-fashioned options--just copy them through,
1335 with their arguments. */
1336 else if (argv
[i
][0] == '-')
1338 const char *p
= argv
[i
] + 1;
1342 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1343 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1344 else if (WORD_SWITCH_TAKES_ARG (p
))
1345 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1346 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1349 else if (! strcmp (p
, "Xlinker"))
1351 else if (! strcmp (p
, "Xpreprocessor"))
1353 else if (! strcmp (p
, "Xassembler"))
1356 /* Watch out for an option at the end of the command line that
1357 is missing arguments, and avoid skipping past the end of the
1359 if (nskip
+ i
> argc
)
1364 newv
[newindex
++] = argv
[i
++];
1369 /* Ordinary operands, or +e options. */
1370 newv
[newindex
++] = argv
[i
++];
1380 skip_whitespace (char *p
)
1384 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1385 be considered whitespace. */
1386 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1388 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1402 /* Structures to keep track of prefixes to try when looking for files. */
1406 const char *prefix
; /* String to prepend to the path. */
1407 struct prefix_list
*next
; /* Next in linked list. */
1408 int require_machine_suffix
; /* Don't use without machine_suffix. */
1409 /* 2 means try both machine_suffix and just_machine_suffix. */
1410 int priority
; /* Sort key - priority within list. */
1411 int os_multilib
; /* 1 if OS multilib scheme should be used,
1412 0 for GCC multilib scheme. */
1417 struct prefix_list
*plist
; /* List of prefixes to try */
1418 int max_len
; /* Max length of a prefix in PLIST */
1419 const char *name
; /* Name of this list (used in config stuff) */
1422 /* List of prefixes to try when looking for executables. */
1424 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1426 /* List of prefixes to try when looking for startup (crt0) files. */
1428 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1430 /* List of prefixes to try when looking for include files. */
1432 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1434 /* Suffix to attach to directories searched for commands.
1435 This looks like `MACHINE/VERSION/'. */
1437 static const char *machine_suffix
= 0;
1439 /* Suffix to attach to directories searched for commands.
1440 This is just `MACHINE/'. */
1442 static const char *just_machine_suffix
= 0;
1444 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1446 static const char *gcc_exec_prefix
;
1448 /* Adjusted value of standard_libexec_prefix. */
1450 static const char *gcc_libexec_prefix
;
1452 /* Default prefixes to attach to command names. */
1454 #ifndef STANDARD_STARTFILE_PREFIX_1
1455 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1457 #ifndef STANDARD_STARTFILE_PREFIX_2
1458 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1461 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1462 #undef MD_EXEC_PREFIX
1463 #undef MD_STARTFILE_PREFIX
1464 #undef MD_STARTFILE_PREFIX_1
1467 /* If no prefixes defined, use the null string, which will disable them. */
1468 #ifndef MD_EXEC_PREFIX
1469 #define MD_EXEC_PREFIX ""
1471 #ifndef MD_STARTFILE_PREFIX
1472 #define MD_STARTFILE_PREFIX ""
1474 #ifndef MD_STARTFILE_PREFIX_1
1475 #define MD_STARTFILE_PREFIX_1 ""
1478 /* These directories are locations set at configure-time based on the
1479 --prefix option provided to configure. Their initializers are
1480 defined in Makefile.in. These paths are not *directly* used when
1481 gcc_exec_prefix is set because, in that case, we know where the
1482 compiler has been installed, and use paths relative to that
1483 location instead. */
1484 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1485 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1486 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1487 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1489 /* For native compilers, these are well-known paths containing
1490 components that may be provided by the system. For cross
1491 compilers, these paths are not used. */
1492 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1493 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1494 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1495 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1496 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1497 static const char *const standard_startfile_prefix_1
1498 = STANDARD_STARTFILE_PREFIX_1
;
1499 static const char *const standard_startfile_prefix_2
1500 = STANDARD_STARTFILE_PREFIX_2
;
1502 /* A relative path to be used in finding the location of tools
1503 relative to the driver. */
1504 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1506 /* Subdirectory to use for locating libraries. Set by
1507 set_multilib_dir based on the compilation options. */
1509 static const char *multilib_dir
;
1511 /* Subdirectory to use for locating libraries in OS conventions. Set by
1512 set_multilib_dir based on the compilation options. */
1514 static const char *multilib_os_dir
;
1516 /* Structure to keep track of the specs that have been defined so far.
1517 These are accessed using %(specname) or %[specname] in a compiler
1522 /* The following 2 fields must be first */
1523 /* to allow EXTRA_SPECS to be initialized */
1524 const char *name
; /* name of the spec. */
1525 const char *ptr
; /* available ptr if no static pointer */
1527 /* The following fields are not initialized */
1528 /* by EXTRA_SPECS */
1529 const char **ptr_spec
; /* pointer to the spec itself. */
1530 struct spec_list
*next
; /* Next spec in linked list. */
1531 int name_len
; /* length of the name */
1532 int alloc_p
; /* whether string was allocated */
1535 #define INIT_STATIC_SPEC(NAME,PTR) \
1536 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1538 /* List of statically defined specs. */
1539 static struct spec_list static_specs
[] =
1541 INIT_STATIC_SPEC ("asm", &asm_spec
),
1542 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1543 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1544 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1545 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1546 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1547 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1548 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1549 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1550 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1551 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1552 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1553 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1554 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1555 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1556 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1557 INIT_STATIC_SPEC ("link", &link_spec
),
1558 INIT_STATIC_SPEC ("lib", &lib_spec
),
1559 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1560 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1561 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1562 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1563 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1564 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1565 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1566 INIT_STATIC_SPEC ("version", &compiler_version
),
1567 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1568 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1569 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1570 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1571 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1572 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1573 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1574 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1575 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1576 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1577 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1578 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1579 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1580 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1581 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1584 #ifdef EXTRA_SPECS /* additional specs needed */
1585 /* Structure to keep track of just the first two args of a spec_list.
1586 That is all that the EXTRA_SPECS macro gives us. */
1589 const char *const name
;
1590 const char *const ptr
;
1593 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1594 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1597 /* List of dynamically allocates specs that have been defined so far. */
1599 static struct spec_list
*specs
= (struct spec_list
*) 0;
1601 /* List of static spec functions. */
1603 static const struct spec_function static_spec_functions
[] =
1605 { "getenv", getenv_spec_function
},
1606 { "if-exists", if_exists_spec_function
},
1607 { "if-exists-else", if_exists_else_spec_function
},
1608 { "replace-outfile", replace_outfile_spec_function
},
1609 { "version-compare", version_compare_spec_function
},
1610 { "include", include_spec_function
},
1611 #ifdef EXTRA_SPEC_FUNCTIONS
1612 EXTRA_SPEC_FUNCTIONS
1617 static int processing_spec_function
;
1619 /* Add appropriate libgcc specs to OBSTACK, taking into account
1620 various permutations of -shared-libgcc, -shared, and such. */
1622 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1624 #ifndef USE_LD_AS_NEEDED
1625 #define USE_LD_AS_NEEDED 0
1629 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1630 const char *static_name
, const char *eh_name
)
1634 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1635 "%{!static:%{!static-libgcc:"
1636 #if USE_LD_AS_NEEDED
1637 "%{!shared-libgcc:",
1638 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1641 shared_name
, "%{!shared: ", static_name
, "}"
1645 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1646 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1650 "%{shared-libgcc:", shared_name
, "}"
1651 "%{!shared-libgcc:", static_name
, "}"
1654 "%{shared:", shared_name
, "}"
1659 obstack_grow (obstack
, buf
, strlen (buf
));
1662 #endif /* ENABLE_SHARED_LIBGCC */
1664 /* Initialize the specs lookup routines. */
1669 struct spec_list
*next
= (struct spec_list
*) 0;
1670 struct spec_list
*sl
= (struct spec_list
*) 0;
1674 return; /* Already initialized. */
1677 notice ("Using built-in specs.\n");
1680 extra_specs
= xcalloc (sizeof (struct spec_list
),
1681 ARRAY_SIZE (extra_specs_1
));
1683 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1685 sl
= &extra_specs
[i
];
1686 sl
->name
= extra_specs_1
[i
].name
;
1687 sl
->ptr
= extra_specs_1
[i
].ptr
;
1689 sl
->name_len
= strlen (sl
->name
);
1690 sl
->ptr_spec
= &sl
->ptr
;
1695 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1696 on ?: in file-scope variable initializations. */
1697 asm_debug
= ASM_DEBUG_SPEC
;
1699 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1701 sl
= &static_specs
[i
];
1706 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1707 /* ??? If neither -shared-libgcc nor --static-libgcc was
1708 seen, then we should be making an educated guess. Some proposed
1709 heuristics for ELF include:
1711 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1712 program will be doing dynamic loading, which will likely
1713 need the shared libgcc.
1715 (2) If "-ldl", then it's also a fair bet that we're doing
1718 (3) For each ET_DYN we're linking against (either through -lfoo
1719 or /some/path/foo.so), check to see whether it or one of
1720 its dependencies depends on a shared libgcc.
1724 If the runtime is fixed to look for program headers instead
1725 of calling __register_frame_info at all, for each object,
1726 use the shared libgcc if any EH symbol referenced.
1728 If crtstuff is fixed to not invoke __register_frame_info
1729 automatically, for each object, use the shared libgcc if
1730 any non-empty unwind section found.
1732 Doing any of this probably requires invoking an external program to
1733 do the actual object file scanning. */
1735 const char *p
= libgcc_spec
;
1738 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1739 when given the proper command line arguments. */
1742 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1744 init_gcc_specs (&obstack
,
1746 #ifdef USE_LIBUNWIND_EXCEPTIONS
1752 #ifdef USE_LIBUNWIND_EXCEPTIONS
1753 # ifdef HAVE_LD_STATIC_DYNAMIC
1754 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1764 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1766 /* Ug. We don't know shared library extensions. Hope that
1767 systems that use this form don't do shared libraries. */
1768 init_gcc_specs (&obstack
,
1772 #ifdef USE_LIBUNWIND_EXCEPTIONS
1781 obstack_1grow (&obstack
, *p
);
1782 in_sep
= (*p
== ' ');
1787 obstack_1grow (&obstack
, '\0');
1788 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1791 #ifdef USE_AS_TRADITIONAL_FORMAT
1792 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1794 static const char tf
[] = "--traditional-format ";
1795 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1796 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1797 asm_spec
= XOBFINISH (&obstack
, const char *);
1801 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1802 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1803 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1804 link_spec
= XOBFINISH (&obstack
, const char *);
1810 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1811 removed; If the spec starts with a + then SPEC is added to the end of the
1815 set_spec (const char *name
, const char *spec
)
1817 struct spec_list
*sl
;
1818 const char *old_spec
;
1819 int name_len
= strlen (name
);
1822 /* If this is the first call, initialize the statically allocated specs. */
1825 struct spec_list
*next
= (struct spec_list
*) 0;
1826 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1828 sl
= &static_specs
[i
];
1835 /* See if the spec already exists. */
1836 for (sl
= specs
; sl
; sl
= sl
->next
)
1837 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1842 /* Not found - make it. */
1843 sl
= XNEW (struct spec_list
);
1844 sl
->name
= xstrdup (name
);
1845 sl
->name_len
= name_len
;
1846 sl
->ptr_spec
= &sl
->ptr
;
1848 *(sl
->ptr_spec
) = "";
1853 old_spec
= *(sl
->ptr_spec
);
1854 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1855 ? concat (old_spec
, spec
+ 1, NULL
)
1860 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1863 /* Free the old spec. */
1864 if (old_spec
&& sl
->alloc_p
)
1865 free ((void *) old_spec
);
1870 /* Accumulate a command (program name and args), and run it. */
1872 /* Vector of pointers to arguments in the current line of specifications. */
1874 static const char **argbuf
;
1876 /* Number of elements allocated in argbuf. */
1878 static int argbuf_length
;
1880 /* Number of elements in argbuf currently in use (containing args). */
1882 static int argbuf_index
;
1884 /* Position in the argbuf array containing the name of the output file
1885 (the value associated with the "-o" flag). */
1887 static int have_o_argbuf_index
= 0;
1889 /* Were the options -c or -S passed. */
1890 static int have_c
= 0;
1892 /* Was the option -o passed. */
1893 static int have_o
= 0;
1895 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1896 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1899 static struct temp_name
{
1900 const char *suffix
; /* suffix associated with the code. */
1901 int length
; /* strlen (suffix). */
1902 int unique
; /* Indicates whether %g or %u/%U was used. */
1903 const char *filename
; /* associated filename. */
1904 int filename_length
; /* strlen (filename). */
1905 struct temp_name
*next
;
1908 /* Number of commands executed so far. */
1910 static int execution_count
;
1912 /* Number of commands that exited with a signal. */
1914 static int signal_count
;
1916 /* Name with which this program was invoked. */
1918 static const char *programname
;
1920 /* Allocate the argument vector. */
1926 argbuf
= XNEWVEC (const char *, argbuf_length
);
1929 /* Clear out the vector of arguments (after a command is executed). */
1937 /* Add one argument to the vector at the end.
1938 This is done when a space is seen or at the end of the line.
1939 If DELETE_ALWAYS is nonzero, the arg is a filename
1940 and the file should be deleted eventually.
1941 If DELETE_FAILURE is nonzero, the arg is a filename
1942 and the file should be deleted if this compilation fails. */
1945 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1947 if (argbuf_index
+ 1 == argbuf_length
)
1948 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1950 argbuf
[argbuf_index
++] = arg
;
1951 argbuf
[argbuf_index
] = 0;
1953 if (strcmp (arg
, "-o") == 0)
1954 have_o_argbuf_index
= argbuf_index
;
1955 if (delete_always
|| delete_failure
)
1956 record_temp_file (arg
, delete_always
, delete_failure
);
1959 /* Load specs from a file name named FILENAME, replacing occurrences of
1960 various different types of line-endings, \r\n, \n\r and just \r, with
1964 load_specs (const char *filename
)
1968 struct stat statbuf
;
1975 notice ("Reading specs from %s\n", filename
);
1977 /* Open and stat the file. */
1978 desc
= open (filename
, O_RDONLY
, 0);
1980 pfatal_with_name (filename
);
1981 if (stat (filename
, &statbuf
) < 0)
1982 pfatal_with_name (filename
);
1984 /* Read contents of file into BUFFER. */
1985 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1986 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1988 pfatal_with_name (filename
);
1989 buffer
[readlen
] = 0;
1992 specs
= XNEWVEC (char, readlen
+ 1);
1994 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2000 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2002 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2016 /* Read compilation specs from a file named FILENAME,
2017 replacing the default ones.
2019 A suffix which starts with `*' is a definition for
2020 one of the machine-specific sub-specs. The "suffix" should be
2021 *asm, *cc1, *cpp, *link, *startfile, etc.
2022 The corresponding spec is stored in asm_spec, etc.,
2023 rather than in the `compilers' vector.
2025 Anything invalid in the file is a fatal error. */
2028 read_specs (const char *filename
, int main_p
)
2033 buffer
= load_specs (filename
);
2035 /* Scan BUFFER for specs, putting them in the vector. */
2041 char *in
, *out
, *p1
, *p2
, *p3
;
2043 /* Advance P in BUFFER to the next nonblank nocomment line. */
2044 p
= skip_whitespace (p
);
2048 /* Is this a special command that starts with '%'? */
2049 /* Don't allow this for the main specs file, since it would
2050 encourage people to overwrite it. */
2051 if (*p
== '%' && !main_p
)
2054 while (*p
&& *p
!= '\n')
2060 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2061 && (p1
[sizeof "%include" - 1] == ' '
2062 || p1
[sizeof "%include" - 1] == '\t'))
2066 p1
+= sizeof ("%include");
2067 while (*p1
== ' ' || *p1
== '\t')
2070 if (*p1
++ != '<' || p
[-2] != '>')
2071 fatal ("specs %%include syntax malformed after %ld characters",
2072 (long) (p1
- buffer
+ 1));
2075 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2076 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2079 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2080 && (p1
[sizeof "%include_noerr" - 1] == ' '
2081 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2085 p1
+= sizeof "%include_noerr";
2086 while (*p1
== ' ' || *p1
== '\t')
2089 if (*p1
++ != '<' || p
[-2] != '>')
2090 fatal ("specs %%include syntax malformed after %ld characters",
2091 (long) (p1
- buffer
+ 1));
2094 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2096 read_specs (new_filename
, FALSE
);
2097 else if (verbose_flag
)
2098 notice ("could not find specs file %s\n", p1
);
2101 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2102 && (p1
[sizeof "%rename" - 1] == ' '
2103 || p1
[sizeof "%rename" - 1] == '\t'))
2106 struct spec_list
*sl
;
2107 struct spec_list
*newsl
;
2109 /* Get original name. */
2110 p1
+= sizeof "%rename";
2111 while (*p1
== ' ' || *p1
== '\t')
2114 if (! ISALPHA ((unsigned char) *p1
))
2115 fatal ("specs %%rename syntax malformed after %ld characters",
2116 (long) (p1
- buffer
));
2119 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2122 if (*p2
!= ' ' && *p2
!= '\t')
2123 fatal ("specs %%rename syntax malformed after %ld characters",
2124 (long) (p2
- buffer
));
2128 while (*p2
== ' ' || *p2
== '\t')
2131 if (! ISALPHA ((unsigned char) *p2
))
2132 fatal ("specs %%rename syntax malformed after %ld characters",
2133 (long) (p2
- buffer
));
2135 /* Get new spec name. */
2137 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2141 fatal ("specs %%rename syntax malformed after %ld characters",
2142 (long) (p3
- buffer
));
2145 for (sl
= specs
; sl
; sl
= sl
->next
)
2146 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2150 fatal ("specs %s spec was not found to be renamed", p1
);
2152 if (strcmp (p1
, p2
) == 0)
2155 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2156 if (strcmp (newsl
->name
, p2
) == 0)
2157 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2162 notice ("rename spec %s to %s\n", p1
, p2
);
2164 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2168 set_spec (p2
, *(sl
->ptr_spec
));
2170 free ((void *) *(sl
->ptr_spec
));
2172 *(sl
->ptr_spec
) = "";
2177 fatal ("specs unknown %% command after %ld characters",
2178 (long) (p1
- buffer
));
2181 /* Find the colon that should end the suffix. */
2183 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2186 /* The colon shouldn't be missing. */
2188 fatal ("specs file malformed after %ld characters",
2189 (long) (p1
- buffer
));
2191 /* Skip back over trailing whitespace. */
2193 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2196 /* Copy the suffix to a string. */
2197 suffix
= save_string (p
, p2
- p
);
2198 /* Find the next line. */
2199 p
= skip_whitespace (p1
+ 1);
2201 fatal ("specs file malformed after %ld characters",
2202 (long) (p
- buffer
));
2205 /* Find next blank line or end of string. */
2206 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2209 /* Specs end at the blank line and do not include the newline. */
2210 spec
= save_string (p
, p1
- p
);
2213 /* Delete backslash-newline sequences from the spec. */
2218 if (in
[0] == '\\' && in
[1] == '\n')
2220 else if (in
[0] == '#')
2221 while (*in
&& *in
!= '\n')
2229 if (suffix
[0] == '*')
2231 if (! strcmp (suffix
, "*link_command"))
2232 link_command_spec
= spec
;
2234 set_spec (suffix
+ 1, spec
);
2238 /* Add this pair to the vector. */
2240 = xrealloc (compilers
,
2241 (n_compilers
+ 2) * sizeof (struct compiler
));
2243 compilers
[n_compilers
].suffix
= suffix
;
2244 compilers
[n_compilers
].spec
= spec
;
2246 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2250 link_command_spec
= spec
;
2253 if (link_command_spec
== 0)
2254 fatal ("spec file has no spec for linking");
2257 /* Record the names of temporary files we tell compilers to write,
2258 and delete them at the end of the run. */
2260 /* This is the common prefix we use to make temp file names.
2261 It is chosen once for each run of this program.
2262 It is substituted into a spec by %g or %j.
2263 Thus, all temp file names contain this prefix.
2264 In practice, all temp file names start with this prefix.
2266 This prefix comes from the envvar TMPDIR if it is defined;
2267 otherwise, from the P_tmpdir macro if that is defined;
2268 otherwise, in /usr/tmp or /tmp;
2269 or finally the current directory if all else fails. */
2271 static const char *temp_filename
;
2273 /* Length of the prefix. */
2275 static int temp_filename_length
;
2277 /* Define the list of temporary files to delete. */
2282 struct temp_file
*next
;
2285 /* Queue of files to delete on success or failure of compilation. */
2286 static struct temp_file
*always_delete_queue
;
2287 /* Queue of files to delete on failure of compilation. */
2288 static struct temp_file
*failure_delete_queue
;
2290 /* Record FILENAME as a file to be deleted automatically.
2291 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2292 otherwise delete it in any case.
2293 FAIL_DELETE nonzero means delete it if a compilation step fails;
2294 otherwise delete it in any case. */
2297 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2299 char *const name
= xstrdup (filename
);
2303 struct temp_file
*temp
;
2304 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2305 if (! strcmp (name
, temp
->name
))
2308 temp
= XNEW (struct temp_file
);
2309 temp
->next
= always_delete_queue
;
2311 always_delete_queue
= temp
;
2318 struct temp_file
*temp
;
2319 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2320 if (! strcmp (name
, temp
->name
))
2323 temp
= XNEW (struct temp_file
);
2324 temp
->next
= failure_delete_queue
;
2326 failure_delete_queue
= temp
;
2332 /* Delete all the temporary files whose names we previously recorded. */
2334 #ifndef DELETE_IF_ORDINARY
2335 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2338 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2339 if (unlink (NAME) < 0) \
2341 perror_with_name (NAME); \
2346 delete_if_ordinary (const char *name
)
2352 printf ("Delete %s? (y or n) ", name
);
2356 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2359 if (i
== 'y' || i
== 'Y')
2361 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2365 delete_temp_files (void)
2367 struct temp_file
*temp
;
2369 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2370 delete_if_ordinary (temp
->name
);
2371 always_delete_queue
= 0;
2374 /* Delete all the files to be deleted on error. */
2377 delete_failure_queue (void)
2379 struct temp_file
*temp
;
2381 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2382 delete_if_ordinary (temp
->name
);
2386 clear_failure_queue (void)
2388 failure_delete_queue
= 0;
2391 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2393 If DO_MULTI is true iterate over the paths twice, first with multilib
2394 suffix then without, otherwise iterate over the paths once without
2395 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2396 to avoid visiting the same path twice, but we could do better. For
2397 instance, /usr/lib/../lib is considered different from /usr/lib.
2398 At least EXTRA_SPACE chars past the end of the path passed to
2399 CALLBACK are available for use by the callback.
2400 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2402 Returns the value returned by CALLBACK. */
2405 for_each_path (const struct path_prefix
*paths
,
2408 void *(*callback
) (char *, void *),
2409 void *callback_info
)
2411 struct prefix_list
*pl
;
2412 const char *multi_dir
= NULL
;
2413 const char *multi_os_dir
= NULL
;
2414 const char *multi_suffix
;
2415 const char *just_multi_suffix
;
2418 bool skip_multi_dir
= false;
2419 bool skip_multi_os_dir
= false;
2421 multi_suffix
= machine_suffix
;
2422 just_multi_suffix
= just_machine_suffix
;
2423 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2425 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2426 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2427 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2429 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2430 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2434 size_t multi_dir_len
= 0;
2435 size_t multi_os_dir_len
= 0;
2437 size_t just_suffix_len
;
2441 multi_dir_len
= strlen (multi_dir
);
2443 multi_os_dir_len
= strlen (multi_os_dir
);
2444 suffix_len
= strlen (multi_suffix
);
2445 just_suffix_len
= strlen (just_multi_suffix
);
2449 len
= paths
->max_len
+ extra_space
+ 1;
2450 if (suffix_len
> multi_os_dir_len
)
2453 len
+= multi_os_dir_len
;
2454 path
= XNEWVEC (char, len
);
2457 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2459 len
= strlen (pl
->prefix
);
2460 memcpy (path
, pl
->prefix
, len
);
2462 /* Look first in MACHINE/VERSION subdirectory. */
2463 if (!skip_multi_dir
)
2465 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2466 ret
= callback (path
, callback_info
);
2471 /* Some paths are tried with just the machine (ie. target)
2472 subdir. This is used for finding as, ld, etc. */
2474 && pl
->require_machine_suffix
== 2)
2476 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2477 ret
= callback (path
, callback_info
);
2482 /* Now try the base path. */
2483 if (!pl
->require_machine_suffix
2484 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2486 const char *this_multi
;
2487 size_t this_multi_len
;
2489 if (pl
->os_multilib
)
2491 this_multi
= multi_os_dir
;
2492 this_multi_len
= multi_os_dir_len
;
2496 this_multi
= multi_dir
;
2497 this_multi_len
= multi_dir_len
;
2501 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2505 ret
= callback (path
, callback_info
);
2513 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2516 /* Run through the paths again, this time without multilibs.
2517 Don't repeat any we have already seen. */
2520 free ((char *) multi_dir
);
2522 free ((char *) multi_suffix
);
2523 multi_suffix
= machine_suffix
;
2524 free ((char *) just_multi_suffix
);
2525 just_multi_suffix
= just_machine_suffix
;
2528 skip_multi_dir
= true;
2531 free ((char *) multi_os_dir
);
2532 multi_os_dir
= NULL
;
2535 skip_multi_os_dir
= true;
2540 free ((char *) multi_dir
);
2541 free ((char *) multi_suffix
);
2542 free ((char *) just_multi_suffix
);
2545 free ((char *) multi_os_dir
);
2551 /* Callback for build_search_list. Adds path to obstack being built. */
2553 struct add_to_obstack_info
{
2560 add_to_obstack (char *path
, void *data
)
2562 struct add_to_obstack_info
*info
= data
;
2564 if (info
->check_dir
&& !is_directory (path
, false))
2567 if (!info
->first_time
)
2568 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2570 obstack_grow (info
->ob
, path
, strlen (path
));
2572 info
->first_time
= false;
2576 /* Build a list of search directories from PATHS.
2577 PREFIX is a string to prepend to the list.
2578 If CHECK_DIR_P is true we ensure the directory exists.
2579 If DO_MULTI is true, multilib paths are output first, then
2581 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2582 It is also used by the --print-search-dirs flag. */
2585 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2586 bool check_dir
, bool do_multi
)
2588 struct add_to_obstack_info info
;
2590 info
.ob
= &collect_obstack
;
2591 info
.check_dir
= check_dir
;
2592 info
.first_time
= true;
2594 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2595 obstack_1grow (&collect_obstack
, '=');
2597 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2599 obstack_1grow (&collect_obstack
, '\0');
2600 return XOBFINISH (&collect_obstack
, char *);
2603 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2607 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2610 putenv (build_search_list (paths
, env_var
, true, do_multi
));
2613 /* Check whether NAME can be accessed in MODE. This is like access,
2614 except that it never considers directories to be executable. */
2617 access_check (const char *name
, int mode
)
2623 if (stat (name
, &st
) < 0
2624 || S_ISDIR (st
.st_mode
))
2628 return access (name
, mode
);
2631 /* Callback for find_a_file. Appends the file name to the directory
2632 path. If the resulting file exists in the right mode, return the
2633 full pathname to the file. */
2635 struct file_at_path_info
{
2644 file_at_path (char *path
, void *data
)
2646 struct file_at_path_info
*info
= data
;
2647 size_t len
= strlen (path
);
2649 memcpy (path
+ len
, info
->name
, info
->name_len
);
2650 len
+= info
->name_len
;
2652 /* Some systems have a suffix for executable files.
2653 So try appending that first. */
2654 if (info
->suffix_len
)
2656 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2657 if (access_check (path
, info
->mode
) == 0)
2662 if (access_check (path
, info
->mode
) == 0)
2668 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2669 access to check permissions. If DO_MULTI is true, search multilib
2670 paths then non-multilib paths, otherwise do not search multilib paths.
2671 Return 0 if not found, otherwise return its name, allocated with malloc. */
2674 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2677 struct file_at_path_info info
;
2679 #ifdef DEFAULT_ASSEMBLER
2680 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2681 return xstrdup (DEFAULT_ASSEMBLER
);
2684 #ifdef DEFAULT_LINKER
2685 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2686 return xstrdup (DEFAULT_LINKER
);
2689 /* Determine the filename to execute (special case for absolute paths). */
2691 if (IS_ABSOLUTE_PATH (name
))
2693 if (access (name
, mode
) == 0)
2694 return xstrdup (name
);
2700 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2701 info
.name_len
= strlen (info
.name
);
2702 info
.suffix_len
= strlen (info
.suffix
);
2705 return for_each_path (pprefix
, do_multi
, info
.name_len
+ info
.suffix_len
,
2706 file_at_path
, &info
);
2709 /* Ranking of prefixes in the sort list. -B prefixes are put before
2712 enum path_prefix_priority
2714 PREFIX_PRIORITY_B_OPT
,
2715 PREFIX_PRIORITY_LAST
2718 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2719 order according to PRIORITY. Within each PRIORITY, new entries are
2722 If WARN is nonzero, we will warn if no file is found
2723 through this prefix. WARN should point to an int
2724 which will be set to 1 if this entry is used.
2726 COMPONENT is the value to be passed to update_path.
2728 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2729 the complete value of machine_suffix.
2730 2 means try both machine_suffix and just_machine_suffix. */
2733 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2734 const char *component
, /* enum prefix_priority */ int priority
,
2735 int require_machine_suffix
, int os_multilib
)
2737 struct prefix_list
*pl
, **prev
;
2740 for (prev
= &pprefix
->plist
;
2741 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2742 prev
= &(*prev
)->next
)
2745 /* Keep track of the longest prefix. */
2747 prefix
= update_path (prefix
, component
);
2748 len
= strlen (prefix
);
2749 if (len
> pprefix
->max_len
)
2750 pprefix
->max_len
= len
;
2752 pl
= XNEW (struct prefix_list
);
2753 pl
->prefix
= prefix
;
2754 pl
->require_machine_suffix
= require_machine_suffix
;
2755 pl
->priority
= priority
;
2756 pl
->os_multilib
= os_multilib
;
2758 /* Insert after PREV. */
2763 /* Same as add_prefix, but prepending target_system_root to prefix. */
2764 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2766 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2767 const char *component
,
2768 /* enum prefix_priority */ int priority
,
2769 int require_machine_suffix
, int os_multilib
)
2771 if (!IS_ABSOLUTE_PATH (prefix
))
2772 fatal ("system path '%s' is not absolute", prefix
);
2774 if (target_system_root
)
2776 if (target_sysroot_suffix
)
2777 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2778 prefix
= concat (target_system_root
, prefix
, NULL
);
2780 /* We have to override this because GCC's notion of sysroot
2781 moves along with GCC. */
2785 add_prefix (pprefix
, prefix
, component
, priority
,
2786 require_machine_suffix
, os_multilib
);
2789 /* Execute the command specified by the arguments on the current line of spec.
2790 When using pipes, this includes several piped-together commands
2791 with `|' between them.
2793 Return 0 if successful, -1 if failed. */
2799 int n_commands
; /* # of command. */
2801 struct pex_obj
*pex
;
2804 const char *prog
; /* program name. */
2805 const char **argv
; /* vector of args. */
2808 struct command
*commands
; /* each command buffer with above info. */
2810 gcc_assert (!processing_spec_function
);
2812 /* Count # of piped commands. */
2813 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2814 if (strcmp (argbuf
[i
], "|") == 0)
2817 /* Get storage for each command. */
2818 commands
= alloca (n_commands
* sizeof (struct command
));
2820 /* Split argbuf into its separate piped processes,
2821 and record info about each one.
2822 Also search for the programs that are to be run. */
2824 commands
[0].prog
= argbuf
[0]; /* first command. */
2825 commands
[0].argv
= &argbuf
[0];
2826 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2829 commands
[0].argv
[0] = string
;
2831 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2832 if (strcmp (argbuf
[i
], "|") == 0)
2833 { /* each command. */
2834 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2835 fatal ("-pipe not supported");
2837 argbuf
[i
] = 0; /* termination of command args. */
2838 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2839 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2840 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2843 commands
[n_commands
].argv
[0] = string
;
2847 argbuf
[argbuf_index
] = 0;
2849 /* If -v, print what we are about to do, and maybe query. */
2853 /* For help listings, put a blank line between sub-processes. */
2854 if (print_help_list
)
2855 fputc ('\n', stderr
);
2857 /* Print each piped command as a separate line. */
2858 for (i
= 0; i
< n_commands
; i
++)
2860 const char *const *j
;
2862 if (verbose_only_flag
)
2864 for (j
= commands
[i
].argv
; *j
; j
++)
2867 fprintf (stderr
, " \"");
2868 for (p
= *j
; *p
; ++p
)
2870 if (*p
== '"' || *p
== '\\' || *p
== '$')
2871 fputc ('\\', stderr
);
2874 fputc ('"', stderr
);
2878 for (j
= commands
[i
].argv
; *j
; j
++)
2879 fprintf (stderr
, " %s", *j
);
2881 /* Print a pipe symbol after all but the last command. */
2882 if (i
+ 1 != n_commands
)
2883 fprintf (stderr
, " |");
2884 fprintf (stderr
, "\n");
2887 if (verbose_only_flag
!= 0)
2889 /* verbose_only_flag should act as if the spec was
2890 executed, so increment execution_count before
2891 returning. This prevents spurious warnings about
2892 unused linker input files, etc. */
2897 notice ("\nGo ahead? (y or n) ");
2901 while (getchar () != '\n')
2904 if (i
!= 'y' && i
!= 'Y')
2909 #ifdef ENABLE_VALGRIND_CHECKING
2910 /* Run the each command through valgrind. To simplify prepending the
2911 path to valgrind and the option "-q" (for quiet operation unless
2912 something triggers), we allocate a separate argv array. */
2914 for (i
= 0; i
< n_commands
; i
++)
2920 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2923 argv
= alloca ((argc
+ 3) * sizeof (char *));
2925 argv
[0] = VALGRIND_PATH
;
2927 for (j
= 2; j
< argc
+ 2; j
++)
2928 argv
[j
] = commands
[i
].argv
[j
- 2];
2931 commands
[i
].argv
= argv
;
2932 commands
[i
].prog
= argv
[0];
2936 /* Run each piped subprocess. */
2938 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2939 programname
, temp_filename
);
2941 pfatal_with_name (_("pex_init failed"));
2943 for (i
= 0; i
< n_commands
; i
++)
2947 const char *string
= commands
[i
].argv
[0];
2949 errmsg
= pex_run (pex
,
2950 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2951 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2952 string
, (char * const *) commands
[i
].argv
,
2961 pfatal_with_name (errmsg
);
2965 if (string
!= commands
[i
].prog
)
2966 free ((void *) string
);
2971 /* Wait for all the subprocesses to finish. */
2975 struct pex_time
*times
= NULL
;
2978 statuses
= alloca (n_commands
* sizeof (int));
2979 if (!pex_get_status (pex
, n_commands
, statuses
))
2980 pfatal_with_name (_("failed to get exit status"));
2984 times
= alloca (n_commands
* sizeof (struct pex_time
));
2985 if (!pex_get_times (pex
, n_commands
, times
))
2986 pfatal_with_name (_("failed to get process times"));
2991 for (i
= 0; i
< n_commands
; ++i
)
2993 int status
= statuses
[i
];
2995 if (WIFSIGNALED (status
))
2998 /* SIGPIPE is a special case. It happens in -pipe mode
2999 when the compiler dies before the preprocessor is done,
3000 or the assembler dies before the compiler is done.
3001 There's generally been an error already, and this is
3002 just fallout. So don't generate another error unless
3003 we would otherwise have succeeded. */
3004 if (WTERMSIG (status
) == SIGPIPE
3005 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3013 Internal error: %s (program %s)\n\
3014 Please submit a full bug report.\n\
3015 See %s for instructions.",
3016 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3019 else if (WIFEXITED (status
)
3020 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3022 if (WEXITSTATUS (status
) > greatest_status
)
3023 greatest_status
= WEXITSTATUS (status
);
3029 struct pex_time
*pt
= ×
[i
];
3032 ut
= ((double) pt
->user_seconds
3033 + (double) pt
->user_microseconds
/ 1.0e6
);
3034 st
= ((double) pt
->system_seconds
3035 + (double) pt
->system_microseconds
/ 1.0e6
);
3038 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3046 /* Find all the switches given to us
3047 and make a vector describing them.
3048 The elements of the vector are strings, one per switch given.
3049 If a switch uses following arguments, then the `part1' field
3050 is the switch itself and the `args' field
3051 is a null-terminated vector containing the following arguments.
3052 The `live_cond' field is:
3054 1 if the switch is true in a conditional spec,
3055 -1 if false (overridden by a later switch)
3056 -2 if this switch should be ignored (used in %<S)
3057 The `validated' field is nonzero if any spec has looked at this switch;
3058 if it remains zero at the end of the run, it must be meaningless. */
3061 #define SWITCH_FALSE -1
3062 #define SWITCH_IGNORE -2
3063 #define SWITCH_LIVE 1
3070 unsigned char validated
;
3071 unsigned char ordering
;
3074 static struct switchstr
*switches
;
3076 static int n_switches
;
3078 /* Language is one of three things:
3080 1) The name of a real programming language.
3081 2) NULL, indicating that no one has figured out
3083 3) '*', indicating that the file should be passed
3088 const char *language
;
3089 struct compiler
*incompiler
;
3094 /* Also a vector of input files specified. */
3096 static struct infile
*infiles
;
3100 /* True if multiple input files are being compiled to a single
3103 static bool combine_inputs
;
3105 /* This counts the number of libraries added by lang_specific_driver, so that
3106 we can tell if there were any user supplied any files or libraries. */
3108 static int added_libraries
;
3110 /* And a vector of corresponding output files is made up later. */
3112 const char **outfiles
;
3114 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3116 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3117 is true if we should look for an executable suffix. DO_OBJ
3118 is true if we should look for an object suffix. */
3121 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3122 int do_obj ATTRIBUTE_UNUSED
)
3124 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3132 len
= strlen (name
);
3134 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3135 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3136 if (do_obj
&& len
> 2
3137 && name
[len
- 2] == '.'
3138 && name
[len
- 1] == 'o')
3140 obstack_grow (&obstack
, name
, len
- 2);
3141 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3142 name
= XOBFINISH (&obstack
, const char *);
3146 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3147 /* If there is no filetype, make it the executable suffix (which includes
3148 the "."). But don't get confused if we have just "-o". */
3149 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3152 for (i
= len
- 1; i
>= 0; i
--)
3153 if (IS_DIR_SEPARATOR (name
[i
]))
3156 for (i
++; i
< len
; i
++)
3160 obstack_grow (&obstack
, name
, len
);
3161 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3162 strlen (TARGET_EXECUTABLE_SUFFIX
));
3163 name
= XOBFINISH (&obstack
, const char *);
3170 /* Display the command line switches accepted by gcc. */
3174 printf (_("Usage: %s [options] file...\n"), programname
);
3175 fputs (_("Options:\n"), stdout
);
3177 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3178 fputs (_(" --help Display this information\n"), stdout
);
3179 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3180 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout
);
3181 fputs (_(" Display specific types of command line options\n"), stdout
);
3183 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3184 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3185 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3186 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3187 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3188 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3189 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3190 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3191 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3193 -print-multi-lib Display the mapping between command line options and\n\
3194 multiple library search directories\n"), stdout
);
3195 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3196 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3197 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3198 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3199 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3200 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3201 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3202 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3203 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3204 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3205 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3206 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3207 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3209 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3210 and libraries\n"), stdout
);
3211 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3212 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3213 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3214 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3215 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3216 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3217 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3218 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3219 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3221 -x <language> Specify the language of the following input files\n\
3222 Permissible languages include: c c++ assembler none\n\
3223 'none' means revert to the default behavior of\n\
3224 guessing the language based on the file's extension\n\
3228 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3229 passed on to the various sub-processes invoked by %s. In order to pass\n\
3230 other options on to these processes the -W<letter> options must be used.\n\
3233 /* The rest of the options are displayed by invocations of the various
3238 add_preprocessor_option (const char *option
, int len
)
3240 n_preprocessor_options
++;
3242 if (! preprocessor_options
)
3243 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3245 preprocessor_options
= xrealloc (preprocessor_options
,
3246 n_preprocessor_options
* sizeof (char *));
3248 preprocessor_options
[n_preprocessor_options
- 1] =
3249 save_string (option
, len
);
3253 add_assembler_option (const char *option
, int len
)
3255 n_assembler_options
++;
3257 if (! assembler_options
)
3258 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3260 assembler_options
= xrealloc (assembler_options
,
3261 n_assembler_options
* sizeof (char *));
3263 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3267 add_linker_option (const char *option
, int len
)
3271 if (! linker_options
)
3272 linker_options
= XNEWVEC (char *, n_linker_options
);
3274 linker_options
= xrealloc (linker_options
,
3275 n_linker_options
* sizeof (char *));
3277 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3280 /* Create the vector `switches' and its contents.
3281 Store its length in `n_switches'. */
3284 process_command (int argc
, const char **argv
)
3289 const char *spec_lang
= 0;
3290 int last_language_n_infiles
;
3291 int lang_n_infiles
= 0;
3292 #ifdef MODIFY_TARGET_NAME
3293 int is_modify_target_name
;
3296 const char *tooldir_prefix
;
3298 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3302 added_libraries
= 0;
3304 /* Figure compiler version from version string. */
3306 compiler_version
= temp1
= xstrdup (version_string
);
3308 for (; *temp1
; ++temp1
)
3317 /* If there is a -V or -b option (or both), process it now, before
3318 trying to interpret the rest of the command line.
3319 Use heuristic that all configuration names must have at least
3320 one dash '-'. This allows us to pass options starting with -b. */
3321 if (argc
> 1 && argv
[1][0] == '-'
3322 && (argv
[1][1] == 'V' ||
3323 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3325 const char *new_version
= DEFAULT_TARGET_VERSION
;
3326 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3327 const char *progname
= argv
[0];
3332 while (argc
> 1 && argv
[1][0] == '-'
3333 && (argv
[1][1] == 'V' ||
3334 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3336 char opt
= argv
[1][1];
3338 if (argv
[1][2] != '\0')
3351 fatal ("'-%c' option must have argument", opt
);
3358 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3359 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3361 new_argv0
= xmemdup (progname
, baselen
,
3362 baselen
+ concat_length (new_version
, new_machine
,
3363 "-gcc-", NULL
) + 1);
3364 strcpy (new_argv0
+ baselen
, new_machine
);
3365 strcat (new_argv0
, "-gcc-");
3366 strcat (new_argv0
, new_version
);
3368 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3369 (argc
+ 1) * sizeof (argv
[0]));
3370 new_argv
[0] = new_argv0
;
3372 execvp (new_argv0
, new_argv
);
3373 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3376 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3377 see if we can create it from the pathname specified in argv[0]. */
3379 gcc_libexec_prefix
= standard_libexec_prefix
;
3381 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3382 if (!gcc_exec_prefix
)
3384 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3385 standard_exec_prefix
);
3386 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3387 standard_bindir_prefix
,
3388 standard_libexec_prefix
);
3389 if (gcc_exec_prefix
)
3390 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3394 /* make_relative_prefix requires a program name, but
3395 GCC_EXEC_PREFIX is typically a directory name with a trailing
3396 / (which is ignored by make_relative_prefix), so append a
3398 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3399 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3400 standard_exec_prefix
,
3401 standard_libexec_prefix
);
3403 /* The path is unrelocated, so fallback to the original setting. */
3404 if (!gcc_libexec_prefix
)
3405 gcc_libexec_prefix
= standard_libexec_prefix
;
3411 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3412 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3413 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3415 if (gcc_exec_prefix
)
3417 int len
= strlen (gcc_exec_prefix
);
3419 if (len
> (int) sizeof ("/lib/gcc/") - 1
3420 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3422 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3423 if (IS_DIR_SEPARATOR (*temp
)
3424 && strncmp (temp
+ 1, "lib", 3) == 0
3425 && IS_DIR_SEPARATOR (temp
[4])
3426 && strncmp (temp
+ 5, "gcc", 3) == 0)
3427 len
-= sizeof ("/lib/gcc/") - 1;
3430 set_std_prefix (gcc_exec_prefix
, len
);
3431 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3432 PREFIX_PRIORITY_LAST
, 0, 0);
3433 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3434 PREFIX_PRIORITY_LAST
, 0, 0);
3437 /* COMPILER_PATH and LIBRARY_PATH have values
3438 that are lists of directory names with colons. */
3440 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3443 const char *startp
, *endp
;
3444 char *nstore
= alloca (strlen (temp
) + 3);
3446 startp
= endp
= temp
;
3449 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3451 strncpy (nstore
, startp
, endp
- startp
);
3453 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3454 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3456 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3457 nstore
[endp
- startp
+ 1] = 0;
3460 nstore
[endp
- startp
] = 0;
3461 add_prefix (&exec_prefixes
, nstore
, 0,
3462 PREFIX_PRIORITY_LAST
, 0, 0);
3463 add_prefix (&include_prefixes
, nstore
, 0,
3464 PREFIX_PRIORITY_LAST
, 0, 0);
3467 endp
= startp
= endp
+ 1;
3474 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3475 if (temp
&& *cross_compile
== '0')
3477 const char *startp
, *endp
;
3478 char *nstore
= alloca (strlen (temp
) + 3);
3480 startp
= endp
= temp
;
3483 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3485 strncpy (nstore
, startp
, endp
- startp
);
3487 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3488 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3490 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3491 nstore
[endp
- startp
+ 1] = 0;
3494 nstore
[endp
- startp
] = 0;
3495 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3496 PREFIX_PRIORITY_LAST
, 0, 1);
3499 endp
= startp
= endp
+ 1;
3506 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3507 GET_ENVIRONMENT (temp
, "LPATH");
3508 if (temp
&& *cross_compile
== '0')
3510 const char *startp
, *endp
;
3511 char *nstore
= alloca (strlen (temp
) + 3);
3513 startp
= endp
= temp
;
3516 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3518 strncpy (nstore
, startp
, endp
- startp
);
3520 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3521 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3523 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3524 nstore
[endp
- startp
+ 1] = 0;
3527 nstore
[endp
- startp
] = 0;
3528 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3529 PREFIX_PRIORITY_LAST
, 0, 1);
3532 endp
= startp
= endp
+ 1;
3539 /* Convert new-style -- options to old-style. */
3540 translate_options (&argc
, (const char *const **) &argv
);
3542 /* Do language-specific adjustment/addition of flags. */
3543 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3545 /* Scan argv twice. Here, the first time, just count how many switches
3546 there will be in their vector, and how many input files in theirs.
3547 Here we also parse the switches that cc itself uses (e.g. -v). */
3549 for (i
= 1; i
< argc
; i
++)
3551 if (! strcmp (argv
[i
], "-dumpspecs"))
3553 struct spec_list
*sl
;
3555 for (sl
= specs
; sl
; sl
= sl
->next
)
3556 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3557 if (link_command_spec
)
3558 printf ("*link_command:\n%s\n\n", link_command_spec
);
3561 else if (! strcmp (argv
[i
], "-dumpversion"))
3563 printf ("%s\n", spec_version
);
3566 else if (! strcmp (argv
[i
], "-dumpmachine"))
3568 printf ("%s\n", spec_machine
);
3571 else if (strcmp (argv
[i
], "-fversion") == 0)
3573 /* translate_options () has turned --version into -fversion. */
3574 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3575 printf ("Copyright %s 2006 Free Software Foundation, Inc.\n",
3577 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3578 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3582 else if (strcmp (argv
[i
], "-fhelp") == 0)
3584 /* translate_options () has turned --help into -fhelp. */
3585 print_help_list
= 1;
3587 /* We will be passing a dummy file on to the sub-processes. */
3591 /* CPP driver cannot obtain switch from cc1_options. */
3593 add_preprocessor_option ("--help", 6);
3594 add_assembler_option ("--help", 6);
3595 add_linker_option ("--help", 6);
3597 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3599 /* translate_options () has turned --help into -fhelp. */
3600 print_subprocess_help
= 2;
3602 /* We will be passing a dummy file on to the sub-processes. */
3606 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3608 /* translate_options() has turned --target-help into -ftarget-help. */
3609 print_subprocess_help
= 1;
3611 /* We will be passing a dummy file on to the sub-processes. */
3615 /* CPP driver cannot obtain switch from cc1_options. */
3617 add_preprocessor_option ("--target-help", 13);
3618 add_assembler_option ("--target-help", 13);
3619 add_linker_option ("--target-help", 13);
3621 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3623 pass_exit_codes
= 1;
3626 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3627 print_search_dirs
= 1;
3628 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3629 print_file_name
= "libgcc.a";
3630 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3631 print_file_name
= argv
[i
] + 17;
3632 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3633 print_prog_name
= argv
[i
] + 17;
3634 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3635 print_multi_lib
= 1;
3636 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3637 print_multi_directory
= 1;
3638 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3639 print_multi_os_directory
= 1;
3640 else if (! strncmp (argv
[i
], "-Wa,", 4))
3643 /* Pass the rest of this option to the assembler. */
3645 /* Split the argument at commas. */
3647 for (j
= 4; argv
[i
][j
]; j
++)
3648 if (argv
[i
][j
] == ',')
3650 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3654 /* Record the part after the last comma. */
3655 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3657 else if (! strncmp (argv
[i
], "-Wp,", 4))
3660 /* Pass the rest of this option to the preprocessor. */
3662 /* Split the argument at commas. */
3664 for (j
= 4; argv
[i
][j
]; j
++)
3665 if (argv
[i
][j
] == ',')
3667 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3671 /* Record the part after the last comma. */
3672 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3674 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3675 /* The +e options to the C++ front-end. */
3677 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3680 /* Split the argument at commas. */
3681 for (j
= 3; argv
[i
][j
]; j
++)
3682 n_infiles
+= (argv
[i
][j
] == ',');
3684 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3687 fatal ("argument to '-Xlinker' is missing");
3692 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3695 fatal ("argument to '-Xpreprocessor' is missing");
3697 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3699 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3702 fatal ("argument to '-Xassembler' is missing");
3704 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3706 else if (strcmp (argv
[i
], "-l") == 0)
3709 fatal ("argument to '-l' is missing");
3714 else if (strncmp (argv
[i
], "-l", 2) == 0)
3716 else if (strcmp (argv
[i
], "-save-temps") == 0)
3718 save_temps_flag
= 1;
3721 else if (strcmp (argv
[i
], "-combine") == 0)
3726 else if (strcmp (argv
[i
], "-specs") == 0)
3728 struct user_specs
*user
= XNEW (struct user_specs
);
3730 fatal ("argument to '-specs' is missing");
3732 user
->next
= (struct user_specs
*) 0;
3733 user
->filename
= argv
[i
];
3734 if (user_specs_tail
)
3735 user_specs_tail
->next
= user
;
3737 user_specs_head
= user
;
3738 user_specs_tail
= user
;
3740 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3742 struct user_specs
*user
= XNEW (struct user_specs
);
3743 if (strlen (argv
[i
]) == 7)
3744 fatal ("argument to '-specs=' is missing");
3746 user
->next
= (struct user_specs
*) 0;
3747 user
->filename
= argv
[i
] + 7;
3748 if (user_specs_tail
)
3749 user_specs_tail
->next
= user
;
3751 user_specs_head
= user
;
3752 user_specs_tail
= user
;
3754 else if (strcmp (argv
[i
], "-time") == 0)
3756 else if (strcmp (argv
[i
], "-pipe") == 0)
3758 /* -pipe has to go into the switches array as well as
3763 else if (strcmp (argv
[i
], "-###") == 0)
3765 /* This is similar to -v except that there is no execution
3766 of the commands and the echoed arguments are quoted. It
3767 is intended for use in shell scripts to capture the
3768 driver-generated command line. */
3769 verbose_only_flag
++;
3772 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3774 const char *p
= &argv
[i
][1];
3780 if (NULL
== strchr(argv
[i
] + 2, '-'))
3785 fatal ("'-%c' must come at the start of the command line", c
);
3793 if (p
[1] == 0 && i
+ 1 == argc
)
3794 fatal ("argument to '-B' is missing");
3800 len
= strlen (value
);
3802 /* Catch the case where the user has forgotten to append a
3803 directory separator to the path. Note, they may be using
3804 -B to add an executable name prefix, eg "i386-elf-", in
3805 order to distinguish between multiple installations of
3806 GCC in the same directory. Hence we must check to see
3807 if appending a directory separator actually makes a
3808 valid directory name. */
3809 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3810 && is_directory (value
, false))
3812 char *tmp
= XNEWVEC (char, len
+ 2);
3813 strcpy (tmp
, value
);
3814 tmp
[len
] = DIR_SEPARATOR
;
3819 /* As a kludge, if the arg is "[foo/]stageN/", just
3820 add "[foo/]include" to the include prefix. */
3823 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3824 && strncmp (value
+ len
- 7, "stage", 5) == 0
3825 && ISDIGIT (value
[len
- 2])
3826 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3829 add_prefix (&include_prefixes
, "./", NULL
,
3830 PREFIX_PRIORITY_B_OPT
, 0, 0);
3833 char *string
= xmalloc (len
- 6);
3834 memcpy (string
, value
, len
- 7);
3835 string
[len
- 7] = 0;
3836 add_prefix (&include_prefixes
, string
, NULL
,
3837 PREFIX_PRIORITY_B_OPT
, 0, 0);
3841 add_prefix (&exec_prefixes
, value
, NULL
,
3842 PREFIX_PRIORITY_B_OPT
, 0, 0);
3843 add_prefix (&startfile_prefixes
, value
, NULL
,
3844 PREFIX_PRIORITY_B_OPT
, 0, 0);
3845 add_prefix (&include_prefixes
, value
, NULL
,
3846 PREFIX_PRIORITY_B_OPT
, 0, 0);
3851 case 'v': /* Print our subcommands and print versions. */
3853 /* If they do anything other than exactly `-v', don't set
3854 verbose_flag; rather, continue on to give the error. */
3872 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3877 /* Forward scan, just in case -S or -c is specified
3884 if (argv
[j
][0] == '-')
3886 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3892 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3893 j
+= skip
- (argv
[j
][2] != 0);
3894 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3901 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3903 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3905 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3912 #ifdef MODIFY_TARGET_NAME
3913 is_modify_target_name
= 0;
3915 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3916 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3918 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3919 + strlen (spec_machine
));
3922 int made_addition
= 0;
3924 is_modify_target_name
= 1;
3925 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3927 if (modify_target
[j
].add_del
== DELETE
3928 && (! strncmp (q
, modify_target
[j
].str
,
3929 strlen (modify_target
[j
].str
))))
3930 p
+= strlen (modify_target
[j
].str
);
3931 else if (modify_target
[j
].add_del
== ADD
3932 && ! made_addition
&& *p
== '-')
3934 for (r
= modify_target
[j
].str
; *r
!= 0; )
3942 spec_machine
= new_name
;
3945 if (is_modify_target_name
)
3951 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3952 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3953 else if (WORD_SWITCH_TAKES_ARG (p
))
3954 i
+= WORD_SWITCH_TAKES_ARG (p
);
3964 if (save_temps_flag
&& use_pipes
)
3966 /* -save-temps overrides -pipe, so that temp files are produced */
3967 if (save_temps_flag
)
3968 error ("warning: -pipe ignored because -save-temps specified");
3972 /* Set up the search paths. We add directories that we expect to
3973 contain GNU Toolchain components before directories specified by
3974 the machine description so that we will find GNU components (like
3975 the GNU assembler) before those of the host system. */
3977 /* If we don't know where the toolchain has been installed, use the
3978 configured-in locations. */
3979 if (!gcc_exec_prefix
)
3982 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3983 PREFIX_PRIORITY_LAST
, 1, 0);
3984 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3985 PREFIX_PRIORITY_LAST
, 2, 0);
3986 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3987 PREFIX_PRIORITY_LAST
, 2, 0);
3989 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3990 PREFIX_PRIORITY_LAST
, 1, 0);
3993 /* If not cross-compiling, search well-known system locations. */
3994 if (*cross_compile
== '0')
3997 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3998 PREFIX_PRIORITY_LAST
, 2, 0);
3999 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4000 PREFIX_PRIORITY_LAST
, 2, 0);
4002 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
4003 PREFIX_PRIORITY_LAST
, 1, 0);
4006 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4007 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4008 dir_separator_str
, NULL
);
4010 /* Look for tools relative to the location from which the driver is
4011 running, or, if that is not available, the configured prefix. */
4013 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4014 spec_machine
, dir_separator_str
,
4015 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4017 add_prefix (&exec_prefixes
,
4018 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4019 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4020 add_prefix (&startfile_prefixes
,
4021 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4022 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4024 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4025 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4026 then consider it to relocate with the rest of the GCC installation
4027 if GCC_EXEC_PREFIX is set.
4028 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4029 if (target_system_root
&& gcc_exec_prefix
)
4031 char *tmp_prefix
= make_relative_prefix (argv
[0],
4032 standard_bindir_prefix
,
4033 target_system_root
);
4034 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4036 target_system_root
= tmp_prefix
;
4037 target_system_root_changed
= 1;
4042 /* More prefixes are enabled in main, after we read the specs file
4043 and determine whether this is cross-compilation or not. */
4045 /* Then create the space for the vectors and scan again. */
4047 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4048 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4051 last_language_n_infiles
= -1;
4053 /* This, time, copy the text of each switch and store a pointer
4054 to the copy in the vector of switches.
4055 Store all the infiles in their vector. */
4057 for (i
= 1; i
< argc
; i
++)
4059 /* Just skip the switches that were handled by the preceding loop. */
4060 #ifdef MODIFY_TARGET_NAME
4061 is_modify_target_name
= 0;
4063 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4064 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4065 is_modify_target_name
= 1;
4067 if (is_modify_target_name
)
4071 if (! strncmp (argv
[i
], "-Wa,", 4))
4073 else if (! strncmp (argv
[i
], "-Wp,", 4))
4075 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4077 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4079 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4081 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4083 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4085 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4087 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4089 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4091 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4093 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4094 target_system_root_changed
= 1;
4096 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4098 /* Compensate for the +e options to the C++ front-end;
4099 they're there simply for cfront call-compatibility. We do
4100 some magic in default_compilers to pass them down properly.
4101 Note we deliberately start at the `+' here, to avoid passing
4102 -e0 or -e1 down into the linker. */
4103 switches
[n_switches
].part1
= &argv
[i
][0];
4104 switches
[n_switches
].args
= 0;
4105 switches
[n_switches
].live_cond
= SWITCH_OK
;
4106 switches
[n_switches
].validated
= 0;
4109 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4112 /* Split the argument at commas. */
4114 for (j
= 4; argv
[i
][j
]; j
++)
4115 if (argv
[i
][j
] == ',')
4117 infiles
[n_infiles
].language
= "*";
4118 infiles
[n_infiles
++].name
4119 = save_string (argv
[i
] + prev
, j
- prev
);
4122 /* Record the part after the last comma. */
4123 infiles
[n_infiles
].language
= "*";
4124 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4126 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4128 infiles
[n_infiles
].language
= "*";
4129 infiles
[n_infiles
++].name
= argv
[++i
];
4131 /* Xassembler and Xpreprocessor were already handled in the first argv
4132 scan, so all we need to do here is ignore them and their argument. */
4133 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4135 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4137 else if (strcmp (argv
[i
], "-l") == 0)
4138 { /* POSIX allows separation of -l and the lib arg;
4139 canonicalize by concatenating -l with its arg */
4140 infiles
[n_infiles
].language
= "*";
4141 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4143 else if (strncmp (argv
[i
], "-l", 2) == 0)
4145 infiles
[n_infiles
].language
= "*";
4146 infiles
[n_infiles
++].name
= argv
[i
];
4148 else if (strcmp (argv
[i
], "-specs") == 0)
4150 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4152 else if (strcmp (argv
[i
], "-time") == 0)
4154 else if (strcmp (argv
[i
], "-###") == 0)
4156 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4158 const char *p
= &argv
[i
][1];
4163 if (p
[1] == 0 && i
+ 1 == argc
)
4164 fatal ("argument to '-x' is missing");
4166 spec_lang
= argv
[++i
];
4169 if (! strcmp (spec_lang
, "none"))
4170 /* Suppress the warning if -xnone comes after the last input
4171 file, because alternate command interfaces like g++ might
4172 find it useful to place -xnone after each input file. */
4175 last_language_n_infiles
= n_infiles
;
4178 switches
[n_switches
].part1
= p
;
4179 /* Deal with option arguments in separate argv elements. */
4180 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4181 || WORD_SWITCH_TAKES_ARG (p
))
4184 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4188 /* Count only the option arguments in separate argv elements. */
4189 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4191 if (i
+ n_args
>= argc
)
4192 fatal ("argument to '-%s' is missing", p
);
4193 switches
[n_switches
].args
4194 = XNEWVEC (const char *, n_args
+ 1);
4196 switches
[n_switches
].args
[j
++] = argv
[++i
];
4197 /* Null-terminate the vector. */
4198 switches
[n_switches
].args
[j
] = 0;
4200 else if (strchr (switches_need_spaces
, c
))
4202 /* On some systems, ld cannot handle some options without
4203 a space. So split the option from its argument. */
4204 char *part1
= XNEWVEC (char, 2);
4208 switches
[n_switches
].part1
= part1
;
4209 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4210 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4211 switches
[n_switches
].args
[1] = 0;
4214 switches
[n_switches
].args
= 0;
4216 switches
[n_switches
].live_cond
= SWITCH_OK
;
4217 switches
[n_switches
].validated
= 0;
4218 switches
[n_switches
].ordering
= 0;
4219 /* These are always valid, since gcc.c itself understands them. */
4220 if (!strcmp (p
, "save-temps")
4221 || !strcmp (p
, "static-libgcc")
4222 || !strcmp (p
, "shared-libgcc")
4223 || !strcmp (p
, "pipe"))
4224 switches
[n_switches
].validated
= 1;
4227 char ch
= switches
[n_switches
].part1
[0];
4229 switches
[n_switches
].validated
= 1;
4235 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4236 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4239 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4241 perror_with_name (argv
[i
]);
4246 infiles
[n_infiles
].language
= spec_lang
;
4247 infiles
[n_infiles
++].name
= argv
[i
];
4252 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4253 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4255 /* Ensure we only invoke each subprocess once. */
4256 if (print_subprocess_help
|| print_help_list
)
4260 /* Create a dummy input file, so that we can pass
4261 the help option on to the various sub-processes. */
4262 infiles
[0].language
= "c";
4263 infiles
[0].name
= "help-dummy";
4266 switches
[n_switches
].part1
= 0;
4267 infiles
[n_infiles
].name
= 0;
4270 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4271 and place that in the environment. */
4274 set_collect_gcc_options (void)
4279 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4281 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4282 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4285 for (i
= 0; (int) i
< n_switches
; i
++)
4287 const char *const *args
;
4290 obstack_grow (&collect_obstack
, " ", 1);
4294 /* Ignore elided switches. */
4295 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4298 obstack_grow (&collect_obstack
, "'-", 2);
4299 q
= switches
[i
].part1
;
4300 while ((p
= strchr (q
, '\'')))
4302 obstack_grow (&collect_obstack
, q
, p
- q
);
4303 obstack_grow (&collect_obstack
, "'\\''", 4);
4306 obstack_grow (&collect_obstack
, q
, strlen (q
));
4307 obstack_grow (&collect_obstack
, "'", 1);
4309 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4311 obstack_grow (&collect_obstack
, " '", 2);
4313 while ((p
= strchr (q
, '\'')))
4315 obstack_grow (&collect_obstack
, q
, p
- q
);
4316 obstack_grow (&collect_obstack
, "'\\''", 4);
4319 obstack_grow (&collect_obstack
, q
, strlen (q
));
4320 obstack_grow (&collect_obstack
, "'", 1);
4323 obstack_grow (&collect_obstack
, "\0", 1);
4324 putenv (XOBFINISH (&collect_obstack
, char *));
4327 /* Process a spec string, accumulating and running commands. */
4329 /* These variables describe the input file name.
4330 input_file_number is the index on outfiles of this file,
4331 so that the output file name can be stored for later use by %o.
4332 input_basename is the start of the part of the input file
4333 sans all directory names, and basename_length is the number
4334 of characters starting there excluding the suffix .c or whatever. */
4336 static const char *input_filename
;
4337 static int input_file_number
;
4338 size_t input_filename_length
;
4339 static int basename_length
;
4340 static int suffixed_basename_length
;
4341 static const char *input_basename
;
4342 static const char *input_suffix
;
4343 #ifndef HOST_LACKS_INODE_NUMBERS
4344 static struct stat input_stat
;
4346 static int input_stat_set
;
4348 /* The compiler used to process the current input file. */
4349 static struct compiler
*input_file_compiler
;
4351 /* These are variables used within do_spec and do_spec_1. */
4353 /* Nonzero if an arg has been started and not yet terminated
4354 (with space, tab or newline). */
4355 static int arg_going
;
4357 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4358 is a temporary file name. */
4359 static int delete_this_arg
;
4361 /* Nonzero means %w has been seen; the next arg to be terminated
4362 is the output file name of this compilation. */
4363 static int this_is_output_file
;
4365 /* Nonzero means %s has been seen; the next arg to be terminated
4366 is the name of a library file and we should try the standard
4367 search dirs for it. */
4368 static int this_is_library_file
;
4370 /* Nonzero means that the input of this command is coming from a pipe. */
4371 static int input_from_pipe
;
4373 /* Nonnull means substitute this for any suffix when outputting a switches
4375 static const char *suffix_subst
;
4377 /* Process the spec SPEC and run the commands specified therein.
4378 Returns 0 if the spec is successfully processed; -1 if failed. */
4381 do_spec (const char *spec
)
4385 value
= do_spec_2 (spec
);
4387 /* Force out any unfinished command.
4388 If -pipe, this forces out the last command if it ended in `|'. */
4391 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4394 set_collect_gcc_options ();
4396 if (argbuf_index
> 0)
4404 do_spec_2 (const char *spec
)
4411 delete_this_arg
= 0;
4412 this_is_output_file
= 0;
4413 this_is_library_file
= 0;
4414 input_from_pipe
= 0;
4415 suffix_subst
= NULL
;
4417 result
= do_spec_1 (spec
, 0, NULL
);
4419 /* End any pending argument. */
4422 obstack_1grow (&obstack
, 0);
4423 string
= XOBFINISH (&obstack
, const char *);
4424 if (this_is_library_file
)
4425 string
= find_file (string
);
4426 store_arg (string
, delete_this_arg
, this_is_output_file
);
4427 if (this_is_output_file
)
4428 outfiles
[input_file_number
] = string
;
4436 /* Process the given spec string and add any new options to the end
4437 of the switches/n_switches array. */
4440 do_option_spec (const char *name
, const char *spec
)
4442 unsigned int i
, value_count
, value_len
;
4443 const char *p
, *q
, *value
;
4444 char *tmp_spec
, *tmp_spec_p
;
4446 if (configure_default_options
[0].name
== NULL
)
4449 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4450 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4452 if (i
== ARRAY_SIZE (configure_default_options
))
4455 value
= configure_default_options
[i
].value
;
4456 value_len
= strlen (value
);
4458 /* Compute the size of the final spec. */
4461 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4467 /* Replace each %(VALUE) by the specified value. */
4468 tmp_spec
= alloca (strlen (spec
) + 1
4469 + value_count
* (value_len
- strlen ("%(VALUE)")));
4470 tmp_spec_p
= tmp_spec
;
4472 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4474 memcpy (tmp_spec_p
, q
, p
- q
);
4475 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4476 memcpy (tmp_spec_p
, value
, value_len
);
4477 tmp_spec_p
+= value_len
;
4478 q
= p
+ strlen ("%(VALUE)");
4480 strcpy (tmp_spec_p
, q
);
4482 do_self_spec (tmp_spec
);
4485 /* Process the given spec string and add any new options to the end
4486 of the switches/n_switches array. */
4489 do_self_spec (const char *spec
)
4492 do_spec_1 (" ", 0, NULL
);
4494 if (argbuf_index
> 0)
4499 n_switches
+= argbuf_index
;
4500 switches
= xrealloc (switches
,
4501 sizeof (struct switchstr
) * (n_switches
+ 1));
4503 switches
[n_switches
] = switches
[first
];
4504 for (i
= 0; i
< argbuf_index
; i
++)
4506 struct switchstr
*sw
;
4508 /* Each switch should start with '-'. */
4509 if (argbuf
[i
][0] != '-')
4510 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4512 sw
= &switches
[i
+ first
];
4513 sw
->part1
= &argbuf
[i
][1];
4515 sw
->live_cond
= SWITCH_OK
;
4522 /* Callback for processing %D and %I specs. */
4524 struct spec_path_info
{
4529 bool separate_options
;
4533 spec_path (char *path
, void *data
)
4535 struct spec_path_info
*info
= data
;
4539 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4542 if (info
->append_len
!= 0)
4544 len
= strlen (path
);
4545 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4548 if (!is_directory (path
, true))
4551 do_spec_1 (info
->option
, 1, NULL
);
4552 if (info
->separate_options
)
4553 do_spec_1 (" ", 0, NULL
);
4555 if (info
->append_len
== 0)
4557 len
= strlen (path
);
4558 save
= path
[len
- 1];
4559 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4560 path
[len
- 1] = '\0';
4563 do_spec_1 (path
, 1, NULL
);
4564 do_spec_1 (" ", 0, NULL
);
4566 /* Must not damage the original path. */
4567 if (info
->append_len
== 0)
4568 path
[len
- 1] = save
;
4573 /* Process the sub-spec SPEC as a portion of a larger spec.
4574 This is like processing a whole spec except that we do
4575 not initialize at the beginning and we do not supply a
4576 newline by default at the end.
4577 INSWITCH nonzero means don't process %-sequences in SPEC;
4578 in this case, % is treated as an ordinary character.
4579 This is used while substituting switches.
4580 INSWITCH nonzero also causes SPC not to terminate an argument.
4582 Value is zero unless a line was finished
4583 and the command on that line reported an error. */
4586 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4588 const char *p
= spec
;
4595 /* If substituting a switch, treat all chars like letters.
4596 Otherwise, NL, SPC, TAB and % are special. */
4597 switch (inswitch
? 'a' : c
)
4600 /* End of line: finish any pending argument,
4601 then run the pending command if one has been started. */
4604 obstack_1grow (&obstack
, 0);
4605 string
= XOBFINISH (&obstack
, const char *);
4606 if (this_is_library_file
)
4607 string
= find_file (string
);
4608 store_arg (string
, delete_this_arg
, this_is_output_file
);
4609 if (this_is_output_file
)
4610 outfiles
[input_file_number
] = string
;
4614 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4616 /* A `|' before the newline means use a pipe here,
4617 but only if -pipe was specified.
4618 Otherwise, execute now and don't pass the `|' as an arg. */
4621 input_from_pipe
= 1;
4628 set_collect_gcc_options ();
4630 if (argbuf_index
> 0)
4636 /* Reinitialize for a new command, and for a new argument. */
4639 delete_this_arg
= 0;
4640 this_is_output_file
= 0;
4641 this_is_library_file
= 0;
4642 input_from_pipe
= 0;
4646 /* End any pending argument. */
4649 obstack_1grow (&obstack
, 0);
4650 string
= XOBFINISH (&obstack
, const char *);
4651 if (this_is_library_file
)
4652 string
= find_file (string
);
4653 store_arg (string
, delete_this_arg
, this_is_output_file
);
4654 if (this_is_output_file
)
4655 outfiles
[input_file_number
] = string
;
4659 obstack_1grow (&obstack
, c
);
4665 /* Space or tab ends an argument if one is pending. */
4668 obstack_1grow (&obstack
, 0);
4669 string
= XOBFINISH (&obstack
, const char *);
4670 if (this_is_library_file
)
4671 string
= find_file (string
);
4672 store_arg (string
, delete_this_arg
, this_is_output_file
);
4673 if (this_is_output_file
)
4674 outfiles
[input_file_number
] = string
;
4676 /* Reinitialize for a new argument. */
4678 delete_this_arg
= 0;
4679 this_is_output_file
= 0;
4680 this_is_library_file
= 0;
4687 fatal ("spec '%s' invalid", spec
);
4690 obstack_grow (&obstack
, input_basename
, basename_length
);
4695 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4700 delete_this_arg
= 2;
4703 /* Dump out the directories specified with LIBRARY_PATH,
4704 followed by the absolute directories
4705 that we search for startfiles. */
4708 struct spec_path_info info
;
4711 info
.append_len
= 0;
4712 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4713 /* Used on systems which record the specified -L dirs
4714 and use them to search for dynamic linking.
4715 Relative directories always come from -B,
4716 and it is better not to use them for searching
4717 at run time. In particular, stage1 loses. */
4718 info
.omit_relative
= true;
4720 info
.omit_relative
= false;
4722 info
.separate_options
= false;
4724 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4729 /* %efoo means report an error with `foo' as error message
4730 and don't execute any more commands for this file. */
4734 while (*p
!= 0 && *p
!= '\n')
4736 buf
= alloca (p
- q
+ 1);
4737 strncpy (buf
, q
, p
- q
);
4744 /* %nfoo means report a notice with `foo' on stderr. */
4748 while (*p
!= 0 && *p
!= '\n')
4750 buf
= alloca (p
- q
+ 1);
4751 strncpy (buf
, q
, p
- q
);
4753 notice ("%s\n", buf
);
4763 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4764 defined, and it is not a directory, and it is
4765 writable, use it. Otherwise, treat this like any
4766 other temporary file. */
4768 if ((!save_temps_flag
)
4769 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4770 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4772 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4773 strlen (HOST_BIT_BUCKET
));
4774 delete_this_arg
= 0;
4779 goto create_temp_file
;
4783 obstack_1grow (&obstack
, '-');
4784 delete_this_arg
= 0;
4787 /* consume suffix */
4788 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4790 if (p
[0] == '%' && p
[1] == 'O')
4795 goto create_temp_file
;
4799 /* consume suffix */
4800 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4802 if (p
[0] == '%' && p
[1] == 'O')
4807 goto create_temp_file
;
4813 struct temp_name
*t
;
4815 const char *suffix
= p
;
4816 char *saved_suffix
= NULL
;
4818 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4820 suffix_length
= p
- suffix
;
4821 if (p
[0] == '%' && p
[1] == 'O')
4824 /* We don't support extra suffix characters after %O. */
4825 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4826 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4827 if (suffix_length
== 0)
4828 suffix
= TARGET_OBJECT_SUFFIX
;
4832 = XNEWVEC (char, suffix_length
4833 + strlen (TARGET_OBJECT_SUFFIX
));
4834 strncpy (saved_suffix
, suffix
, suffix_length
);
4835 strcpy (saved_suffix
+ suffix_length
,
4836 TARGET_OBJECT_SUFFIX
);
4838 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4841 /* If the input_filename has the same suffix specified
4842 for the %g, %u, or %U, and -save-temps is specified,
4843 we could end up using that file as an intermediate
4844 thus clobbering the user's source file (.e.g.,
4845 gcc -save-temps foo.s would clobber foo.s with the
4846 output of cpp0). So check for this condition and
4847 generate a temp file as the intermediate. */
4849 if (save_temps_flag
)
4851 temp_filename_length
= basename_length
+ suffix_length
;
4852 temp_filename
= alloca (temp_filename_length
+ 1);
4853 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4854 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4856 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4857 if (strcmp (temp_filename
, input_filename
) != 0)
4859 #ifndef HOST_LACKS_INODE_NUMBERS
4860 struct stat st_temp
;
4862 /* Note, set_input() resets input_stat_set to 0. */
4863 if (input_stat_set
== 0)
4865 input_stat_set
= stat (input_filename
, &input_stat
);
4866 if (input_stat_set
>= 0)
4870 /* If we have the stat for the input_filename
4871 and we can do the stat for the temp_filename
4872 then the they could still refer to the same
4873 file if st_dev/st_ino's are the same. */
4874 if (input_stat_set
!= 1
4875 || stat (temp_filename
, &st_temp
) < 0
4876 || input_stat
.st_dev
!= st_temp
.st_dev
4877 || input_stat
.st_ino
!= st_temp
.st_ino
)
4879 /* Just compare canonical pathnames. */
4880 char* input_realname
= lrealpath (input_filename
);
4881 char* temp_realname
= lrealpath (temp_filename
);
4882 bool files_differ
= strcmp (input_realname
, temp_realname
);
4883 free (input_realname
);
4884 free (temp_realname
);
4888 temp_filename
= save_string (temp_filename
,
4889 temp_filename_length
+ 1);
4890 obstack_grow (&obstack
, temp_filename
,
4891 temp_filename_length
);
4893 delete_this_arg
= 0;
4899 /* See if we already have an association of %g/%u/%U and
4901 for (t
= temp_names
; t
; t
= t
->next
)
4902 if (t
->length
== suffix_length
4903 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4904 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4907 /* Make a new association if needed. %u and %j
4909 if (t
== 0 || c
== 'u' || c
== 'j')
4913 t
= xmalloc (sizeof (struct temp_name
));
4914 t
->next
= temp_names
;
4917 t
->length
= suffix_length
;
4920 t
->suffix
= saved_suffix
;
4921 saved_suffix
= NULL
;
4924 t
->suffix
= save_string (suffix
, suffix_length
);
4925 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4926 temp_filename
= make_temp_file (t
->suffix
);
4927 temp_filename_length
= strlen (temp_filename
);
4928 t
->filename
= temp_filename
;
4929 t
->filename_length
= temp_filename_length
;
4933 free (saved_suffix
);
4935 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4936 delete_this_arg
= 1;
4944 for (i
= 0; (int) i
< n_infiles
; i
++)
4945 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4946 if (infiles
[i
].incompiler
== input_file_compiler
)
4948 store_arg (infiles
[i
].name
, 0, 0);
4949 infiles
[i
].compiled
= true;
4954 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4961 struct spec_path_info info
;
4965 do_spec_1 ("-imultilib", 1, NULL
);
4966 /* Make this a separate argument. */
4967 do_spec_1 (" ", 0, NULL
);
4968 do_spec_1 (multilib_dir
, 1, NULL
);
4969 do_spec_1 (" ", 0, NULL
);
4972 if (gcc_exec_prefix
)
4974 do_spec_1 ("-iprefix", 1, NULL
);
4975 /* Make this a separate argument. */
4976 do_spec_1 (" ", 0, NULL
);
4977 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4978 do_spec_1 (" ", 0, NULL
);
4981 if (target_system_root_changed
||
4982 (target_system_root
&& target_sysroot_hdrs_suffix
))
4984 do_spec_1 ("-isysroot", 1, NULL
);
4985 /* Make this a separate argument. */
4986 do_spec_1 (" ", 0, NULL
);
4987 do_spec_1 (target_system_root
, 1, NULL
);
4988 if (target_sysroot_hdrs_suffix
)
4989 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4990 do_spec_1 (" ", 0, NULL
);
4993 info
.option
= "-isystem";
4994 info
.append
= "include";
4995 info
.append_len
= strlen (info
.append
);
4996 info
.omit_relative
= false;
4997 info
.separate_options
= true;
4999 for_each_path (&include_prefixes
, false, info
.append_len
,
5006 int max
= n_infiles
;
5007 max
+= lang_specific_extra_outfiles
;
5009 for (i
= 0; i
< max
; i
++)
5011 store_arg (outfiles
[i
], 0, 0);
5016 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5021 this_is_library_file
= 1;
5025 outfiles
[input_file_number
] = NULL
;
5029 this_is_output_file
= 1;
5034 int cur_index
= argbuf_index
;
5035 /* Handle the {...} following the %W. */
5037 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5038 p
= handle_braces (p
+ 1);
5041 /* End any pending argument. */
5044 obstack_1grow (&obstack
, 0);
5045 string
= XOBFINISH (&obstack
, const char *);
5046 if (this_is_library_file
)
5047 string
= find_file (string
);
5048 store_arg (string
, delete_this_arg
, this_is_output_file
);
5049 if (this_is_output_file
)
5050 outfiles
[input_file_number
] = string
;
5053 /* If any args were output, mark the last one for deletion
5055 if (argbuf_index
!= cur_index
)
5056 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5060 /* %x{OPTION} records OPTION for %X to output. */
5066 /* Skip past the option value and make a copy. */
5068 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5071 string
= save_string (p1
+ 1, p
- p1
- 2);
5073 /* See if we already recorded this option. */
5074 for (i
= 0; i
< n_linker_options
; i
++)
5075 if (! strcmp (string
, linker_options
[i
]))
5081 /* This option is new; add it. */
5082 add_linker_option (string
, strlen (string
));
5086 /* Dump out the options accumulated previously using %x. */
5088 for (i
= 0; i
< n_linker_options
; i
++)
5090 do_spec_1 (linker_options
[i
], 1, NULL
);
5091 /* Make each accumulated option a separate argument. */
5092 do_spec_1 (" ", 0, NULL
);
5096 /* Dump out the options accumulated previously using -Wa,. */
5098 for (i
= 0; i
< n_assembler_options
; i
++)
5100 do_spec_1 (assembler_options
[i
], 1, NULL
);
5101 /* Make each accumulated option a separate argument. */
5102 do_spec_1 (" ", 0, NULL
);
5106 /* Dump out the options accumulated previously using -Wp,. */
5108 for (i
= 0; i
< n_preprocessor_options
; i
++)
5110 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5111 /* Make each accumulated option a separate argument. */
5112 do_spec_1 (" ", 0, NULL
);
5116 /* Here are digits and numbers that just process
5117 a certain constant string as a spec. */
5120 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5126 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5132 value
= do_spec_1 (asm_spec
, 0, NULL
);
5138 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5145 const char *const spec
5146 = (input_file_compiler
->cpp_spec
5147 ? input_file_compiler
->cpp_spec
5149 value
= do_spec_1 (spec
, 0, NULL
);
5156 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5162 value
= do_spec_1 (link_spec
, 0, NULL
);
5168 value
= do_spec_1 (lib_spec
, 0, NULL
);
5174 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5180 /* We assume there is a directory
5181 separator at the end of this string. */
5182 if (target_system_root
)
5184 obstack_grow (&obstack
, target_system_root
,
5185 strlen (target_system_root
));
5186 if (target_sysroot_suffix
)
5187 obstack_grow (&obstack
, target_sysroot_suffix
,
5188 strlen (target_sysroot_suffix
));
5193 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5198 /* Here we define characters other than letters and digits. */
5201 p
= handle_braces (p
);
5207 p
= handle_spec_function (p
);
5213 obstack_1grow (&obstack
, '%');
5220 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5222 suffix_subst
= save_string (p
- 1, len
+ 1);
5227 /* Henceforth ignore the option(s) matching the pattern
5232 int have_wildcard
= 0;
5235 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5238 if (p
[len
-1] == '*')
5241 for (i
= 0; i
< n_switches
; i
++)
5242 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5243 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5245 switches
[i
].live_cond
= SWITCH_IGNORE
;
5246 switches
[i
].validated
= 1;
5254 if (soft_matched_part
)
5256 do_spec_1 (soft_matched_part
, 1, NULL
);
5257 do_spec_1 (" ", 0, NULL
);
5260 /* Catch the case where a spec string contains something like
5261 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5262 hand side of the :. */
5263 error ("spec failure: '%%*' has not been initialized by pattern match");
5266 /* Process a string found as the value of a spec given by name.
5267 This feature allows individual machine descriptions
5268 to add and use their own specs.
5269 %[...] modifies -D options the way %P does;
5270 %(...) uses the spec unmodified. */
5272 error ("warning: use of obsolete %%[ operator in specs");
5275 const char *name
= p
;
5276 struct spec_list
*sl
;
5279 /* The string after the S/P is the name of a spec that is to be
5281 while (*p
&& *p
!= ')' && *p
!= ']')
5284 /* See if it's in the list. */
5285 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5286 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5288 name
= *(sl
->ptr_spec
);
5290 notice ("Processing spec %c%s%c, which is '%s'\n",
5291 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5300 value
= do_spec_1 (name
, 0, NULL
);
5306 char *x
= alloca (strlen (name
) * 2 + 1);
5308 const char *y
= name
;
5311 /* Copy all of NAME into BUF, but put __ after
5312 every -D and at the end of each arg. */
5315 if (! strncmp (y
, "-D", 2))
5326 && (*y
== ' ' || *y
== '\t' || *y
== '='
5327 || *y
== '}' || *y
== 0))
5340 value
= do_spec_1 (buf
, 0, NULL
);
5346 /* Discard the closing paren or bracket. */
5353 error ("spec failure: unrecognized spec option '%c'", c
);
5359 /* Backslash: treat next character as ordinary. */
5364 /* Ordinary character: put it into the current argument. */
5365 obstack_1grow (&obstack
, c
);
5369 /* End of string. If we are processing a spec function, we need to
5370 end any pending argument. */
5371 if (processing_spec_function
&& arg_going
)
5373 obstack_1grow (&obstack
, 0);
5374 string
= XOBFINISH (&obstack
, const char *);
5375 if (this_is_library_file
)
5376 string
= find_file (string
);
5377 store_arg (string
, delete_this_arg
, this_is_output_file
);
5378 if (this_is_output_file
)
5379 outfiles
[input_file_number
] = string
;
5386 /* Look up a spec function. */
5388 static const struct spec_function
*
5389 lookup_spec_function (const char *name
)
5391 const struct spec_function
*sf
;
5393 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5394 if (strcmp (sf
->name
, name
) == 0)
5400 /* Evaluate a spec function. */
5403 eval_spec_function (const char *func
, const char *args
)
5405 const struct spec_function
*sf
;
5406 const char *funcval
;
5408 /* Saved spec processing context. */
5409 int save_argbuf_index
;
5410 int save_argbuf_length
;
5411 const char **save_argbuf
;
5414 int save_delete_this_arg
;
5415 int save_this_is_output_file
;
5416 int save_this_is_library_file
;
5417 int save_input_from_pipe
;
5418 const char *save_suffix_subst
;
5421 sf
= lookup_spec_function (func
);
5423 fatal ("unknown spec function '%s'", func
);
5425 /* Push the spec processing context. */
5426 save_argbuf_index
= argbuf_index
;
5427 save_argbuf_length
= argbuf_length
;
5428 save_argbuf
= argbuf
;
5430 save_arg_going
= arg_going
;
5431 save_delete_this_arg
= delete_this_arg
;
5432 save_this_is_output_file
= this_is_output_file
;
5433 save_this_is_library_file
= this_is_library_file
;
5434 save_input_from_pipe
= input_from_pipe
;
5435 save_suffix_subst
= suffix_subst
;
5437 /* Create a new spec processing context, and build the function
5441 if (do_spec_2 (args
) < 0)
5442 fatal ("error in args to spec function '%s'", func
);
5444 /* argbuf_index is an index for the next argument to be inserted, and
5445 so contains the count of the args already inserted. */
5447 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5449 /* Pop the spec processing context. */
5450 argbuf_index
= save_argbuf_index
;
5451 argbuf_length
= save_argbuf_length
;
5453 argbuf
= save_argbuf
;
5455 arg_going
= save_arg_going
;
5456 delete_this_arg
= save_delete_this_arg
;
5457 this_is_output_file
= save_this_is_output_file
;
5458 this_is_library_file
= save_this_is_library_file
;
5459 input_from_pipe
= save_input_from_pipe
;
5460 suffix_subst
= save_suffix_subst
;
5465 /* Handle a spec function call of the form:
5469 ARGS is processed as a spec in a separate context and split into an
5470 argument vector in the normal fashion. The function returns a string
5471 containing a spec which we then process in the caller's context, or
5472 NULL if no processing is required. */
5475 handle_spec_function (const char *p
)
5478 const char *endp
, *funcval
;
5481 processing_spec_function
++;
5483 /* Get the function name. */
5484 for (endp
= p
; *endp
!= '\0'; endp
++)
5486 if (*endp
== '(') /* ) */
5488 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5489 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5490 fatal ("malformed spec function name");
5492 if (*endp
!= '(') /* ) */
5493 fatal ("no arguments for spec function");
5494 func
= save_string (p
, endp
- p
);
5497 /* Get the arguments. */
5498 for (count
= 0; *endp
!= '\0'; endp
++)
5507 else if (*endp
== '(') /* ) */
5512 fatal ("malformed spec function arguments");
5513 args
= save_string (p
, endp
- p
);
5516 /* p now points to just past the end of the spec function expression. */
5518 funcval
= eval_spec_function (func
, args
);
5519 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5525 processing_spec_function
--;
5530 /* Inline subroutine of handle_braces. Returns true if the current
5531 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5533 input_suffix_matches (const char *atom
, const char *end_atom
)
5535 /* We special case the semantics of {.s:...} and {.S:...} and their
5536 negative variants. Instead of testing the input filename suffix,
5537 we test whether the input source file is an assembler file or an
5538 assembler-with-cpp file respectively. This allows us to correctly
5539 handle the -x command line option. */
5541 if (atom
+ 1 == end_atom
5542 && input_file_compiler
5543 && input_file_compiler
->suffix
)
5546 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5548 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5551 return (input_suffix
5552 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5553 && input_suffix
[end_atom
- atom
] == '\0');
5556 /* Subroutine of handle_braces. Returns true if a switch
5557 matching the atom bracketed by ATOM and END_ATOM appeared on the
5560 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5563 int len
= end_atom
- atom
;
5564 int plen
= starred
? len
: -1;
5566 for (i
= 0; i
< n_switches
; i
++)
5567 if (!strncmp (switches
[i
].part1
, atom
, len
)
5568 && (starred
|| switches
[i
].part1
[len
] == '\0')
5569 && check_live_switch (i
, plen
))
5575 /* Inline subroutine of handle_braces. Mark all of the switches which
5576 match ATOM (extends to END_ATOM; STARRED indicates whether there
5577 was a star after the atom) for later processing. */
5579 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5582 int len
= end_atom
- atom
;
5583 int plen
= starred
? len
: -1;
5585 for (i
= 0; i
< n_switches
; i
++)
5586 if (!strncmp (switches
[i
].part1
, atom
, len
)
5587 && (starred
|| switches
[i
].part1
[len
] == '\0')
5588 && check_live_switch (i
, plen
))
5589 switches
[i
].ordering
= 1;
5592 /* Inline subroutine of handle_braces. Process all the currently
5593 marked switches through give_switch, and clear the marks. */
5595 process_marked_switches (void)
5599 for (i
= 0; i
< n_switches
; i
++)
5600 if (switches
[i
].ordering
== 1)
5602 switches
[i
].ordering
= 0;
5607 /* Handle a %{ ... } construct. P points just inside the leading {.
5608 Returns a pointer one past the end of the brace block, or 0
5609 if we call do_spec_1 and that returns -1. */
5612 handle_braces (const char *p
)
5614 const char *atom
, *end_atom
;
5615 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5616 const char *orig
= p
;
5623 bool a_must_be_last
= false;
5624 bool ordered_set
= false;
5625 bool disjunct_set
= false;
5626 bool disj_matched
= false;
5627 bool disj_starred
= true;
5628 bool n_way_choice
= false;
5629 bool n_way_matched
= false;
5631 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5638 /* Scan one "atom" (S in the description above of %{}, possibly
5639 with !, ., or * modifiers). */
5640 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5644 p
++, a_is_negated
= true;
5648 p
++, a_is_suffix
= true;
5651 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5652 || *p
== ',' || *p
== '.' || *p
== '@')
5657 p
++, a_is_starred
= 1;
5663 /* Substitute the switch(es) indicated by the current atom. */
5665 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5666 || atom
== end_atom
)
5669 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5672 process_marked_switches ();
5676 /* Substitute some text if the current atom appears as a switch
5678 disjunct_set
= true;
5682 if (atom
== end_atom
)
5684 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5685 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5688 /* An empty term may appear as the last choice of an
5689 N-way choice set; it means "otherwise". */
5690 a_must_be_last
= true;
5691 disj_matched
= !n_way_matched
;
5692 disj_starred
= false;
5696 if (a_is_suffix
&& a_is_starred
)
5700 disj_starred
= false;
5702 /* Don't bother testing this atom if we already have a
5704 if (!disj_matched
&& !n_way_matched
)
5707 a_matched
= input_suffix_matches (atom
, end_atom
);
5709 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5711 if (a_matched
!= a_is_negated
)
5713 disj_matched
= true;
5715 d_end_atom
= end_atom
;
5722 /* Found the body, that is, the text to substitute if the
5723 current disjunction matches. */
5724 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5725 disj_matched
&& !n_way_matched
);
5729 /* If we have an N-way choice, reset state for the next
5733 n_way_choice
= true;
5734 n_way_matched
|= disj_matched
;
5735 disj_matched
= false;
5736 disj_starred
= true;
5737 d_atom
= d_end_atom
= NULL
;
5746 while (*p
++ != '}');
5751 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5756 /* Subroutine of handle_braces. Scan and process a brace substitution body
5757 (X in the description of %{} syntax). P points one past the colon;
5758 ATOM and END_ATOM bracket the first atom which was found to be true
5759 (present) in the current disjunction; STARRED indicates whether all
5760 the atoms in the current disjunction were starred (for syntax validation);
5761 MATCHED indicates whether the disjunction matched or not, and therefore
5762 whether or not the body is to be processed through do_spec_1 or just
5763 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5767 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5768 int starred
, int matched
)
5770 const char *body
, *end_body
;
5771 unsigned int nesting_level
;
5772 bool have_subst
= false;
5774 /* Locate the closing } or ;, honoring nested braces.
5775 Trim trailing whitespace. */
5784 if (!--nesting_level
)
5787 else if (*p
== ';' && nesting_level
== 1)
5789 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5791 else if (*p
== '\0')
5797 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5800 if (have_subst
&& !starred
)
5805 /* Copy the substitution body to permanent storage and execute it.
5806 If have_subst is false, this is a simple matter of running the
5807 body through do_spec_1... */
5808 char *string
= save_string (body
, end_body
- body
);
5811 if (do_spec_1 (string
, 0, NULL
) < 0)
5816 /* ... but if have_subst is true, we have to process the
5817 body once for each matching switch, with %* set to the
5818 variant part of the switch. */
5819 unsigned int hard_match_len
= end_atom
- atom
;
5822 for (i
= 0; i
< n_switches
; i
++)
5823 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5824 && check_live_switch (i
, hard_match_len
))
5826 if (do_spec_1 (string
, 0,
5827 &switches
[i
].part1
[hard_match_len
]) < 0)
5829 /* Pass any arguments this switch has. */
5831 suffix_subst
= NULL
;
5839 fatal ("braced spec body '%s' is invalid", body
);
5842 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5843 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5844 spec, or -1 if either exact match or %* is used.
5846 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5847 whose value does not begin with "no-" is obsoleted by the same value
5848 with the "no-", similarly for a switch with the "no-" prefix. */
5851 check_live_switch (int switchnum
, int prefix_length
)
5853 const char *name
= switches
[switchnum
].part1
;
5856 /* In the common case of {<at-most-one-letter>*}, a negating
5857 switch would always match, so ignore that case. We will just
5858 send the conflicting switches to the compiler phase. */
5859 if (prefix_length
>= 0 && prefix_length
<= 1)
5862 /* If we already processed this switch and determined if it was
5863 live or not, return our past determination. */
5864 if (switches
[switchnum
].live_cond
!= 0)
5865 return switches
[switchnum
].live_cond
> 0;
5867 /* Now search for duplicate in a manner that depends on the name. */
5871 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5872 if (switches
[i
].part1
[0] == 'O')
5874 switches
[switchnum
].validated
= 1;
5875 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5880 case 'W': case 'f': case 'm':
5881 if (! strncmp (name
+ 1, "no-", 3))
5883 /* We have Xno-YYY, search for XYYY. */
5884 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5885 if (switches
[i
].part1
[0] == name
[0]
5886 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5888 switches
[switchnum
].validated
= 1;
5889 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5895 /* We have XYYY, search for Xno-YYY. */
5896 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5897 if (switches
[i
].part1
[0] == name
[0]
5898 && switches
[i
].part1
[1] == 'n'
5899 && switches
[i
].part1
[2] == 'o'
5900 && switches
[i
].part1
[3] == '-'
5901 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5903 switches
[switchnum
].validated
= 1;
5904 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5911 /* Otherwise the switch is live. */
5912 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5916 /* Pass a switch to the current accumulating command
5917 in the same form that we received it.
5918 SWITCHNUM identifies the switch; it is an index into
5919 the vector of switches gcc received, which is `switches'.
5920 This cannot fail since it never finishes a command line.
5922 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5925 give_switch (int switchnum
, int omit_first_word
)
5927 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5930 if (!omit_first_word
)
5932 do_spec_1 ("-", 0, NULL
);
5933 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5936 if (switches
[switchnum
].args
!= 0)
5939 for (p
= switches
[switchnum
].args
; *p
; p
++)
5941 const char *arg
= *p
;
5943 do_spec_1 (" ", 0, NULL
);
5946 unsigned length
= strlen (arg
);
5949 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5950 if (arg
[length
] == '.')
5952 ((char *)arg
)[length
] = 0;
5956 do_spec_1 (arg
, 1, NULL
);
5958 ((char *)arg
)[length
] = '.';
5959 do_spec_1 (suffix_subst
, 1, NULL
);
5962 do_spec_1 (arg
, 1, NULL
);
5966 do_spec_1 (" ", 0, NULL
);
5967 switches
[switchnum
].validated
= 1;
5970 /* Search for a file named NAME trying various prefixes including the
5971 user's -B prefix and some standard ones.
5972 Return the absolute file name found. If nothing is found, return NAME. */
5975 find_file (const char *name
)
5977 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5978 return newname
? newname
: name
;
5981 /* Determine whether a directory exists. If LINKER, return 0 for
5982 certain fixed names not needed by the linker. */
5985 is_directory (const char *path1
, bool linker
)
5992 /* Ensure the string ends with "/.". The resulting path will be a
5993 directory even if the given path is a symbolic link. */
5994 len1
= strlen (path1
);
5995 path
= alloca (3 + len1
);
5996 memcpy (path
, path1
, len1
);
5998 if (!IS_DIR_SEPARATOR (cp
[-1]))
5999 *cp
++ = DIR_SEPARATOR
;
6003 /* Exclude directories that the linker is known to search. */
6005 && IS_DIR_SEPARATOR (path
[0])
6007 && strncmp (path
+ 1, "lib", 3) == 0)
6009 && strncmp (path
+ 1, "usr", 3) == 0
6010 && IS_DIR_SEPARATOR (path
[4])
6011 && strncmp (path
+ 5, "lib", 3) == 0)))
6014 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6017 /* Set up the various global variables to indicate that we're processing
6018 the input file named FILENAME. */
6021 set_input (const char *filename
)
6025 input_filename
= filename
;
6026 input_filename_length
= strlen (input_filename
);
6028 input_basename
= input_filename
;
6029 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6030 /* Skip drive name so 'x:foo' is handled properly. */
6031 if (input_basename
[1] == ':')
6032 input_basename
+= 2;
6034 for (p
= input_basename
; *p
; p
++)
6035 if (IS_DIR_SEPARATOR (*p
))
6036 input_basename
= p
+ 1;
6038 /* Find a suffix starting with the last period,
6039 and set basename_length to exclude that suffix. */
6040 basename_length
= strlen (input_basename
);
6041 suffixed_basename_length
= basename_length
;
6042 p
= input_basename
+ basename_length
;
6043 while (p
!= input_basename
&& *p
!= '.')
6045 if (*p
== '.' && p
!= input_basename
)
6047 basename_length
= p
- input_basename
;
6048 input_suffix
= p
+ 1;
6053 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6054 we will need to do a stat on the input_filename. The
6055 INPUT_STAT_SET signals that the stat is needed. */
6059 /* On fatal signals, delete all the temporary files. */
6062 fatal_error (int signum
)
6064 signal (signum
, SIG_DFL
);
6065 delete_failure_queue ();
6066 delete_temp_files ();
6067 /* Get the same signal again, this time not handled,
6068 so its normal effect occurs. */
6069 kill (getpid (), signum
);
6072 extern int main (int, char **);
6075 main (int argc
, char **argv
)
6079 int linker_was_run
= 0;
6080 int lang_n_infiles
= 0;
6081 int num_linker_inputs
= 0;
6082 char *explicit_link_files
;
6085 struct user_specs
*uptr
;
6087 p
= argv
[0] + strlen (argv
[0]);
6088 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6092 xmalloc_set_program_name (programname
);
6094 expandargv (&argc
, &argv
);
6096 prune_options (&argc
, &argv
);
6098 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6099 /* Perform host dependent initialization when needed. */
6100 GCC_DRIVER_HOST_INITIALIZATION
;
6103 /* Unlock the stdio streams. */
6104 unlock_std_streams ();
6106 gcc_init_libintl ();
6108 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6109 signal (SIGINT
, fatal_error
);
6111 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6112 signal (SIGHUP
, fatal_error
);
6114 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6115 signal (SIGTERM
, fatal_error
);
6117 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6118 signal (SIGPIPE
, fatal_error
);
6121 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6122 receive the signal. A different setting is inheritable */
6123 signal (SIGCHLD
, SIG_DFL
);
6126 /* Allocate the argument vector. */
6129 obstack_init (&obstack
);
6131 /* Build multilib_select, et. al from the separate lines that make up each
6132 multilib selection. */
6134 const char *const *q
= multilib_raw
;
6137 obstack_init (&multilib_obstack
);
6138 while ((p
= *q
++) != (char *) 0)
6139 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6141 obstack_1grow (&multilib_obstack
, 0);
6142 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6144 q
= multilib_matches_raw
;
6145 while ((p
= *q
++) != (char *) 0)
6146 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6148 obstack_1grow (&multilib_obstack
, 0);
6149 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6151 q
= multilib_exclusions_raw
;
6152 while ((p
= *q
++) != (char *) 0)
6153 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6155 obstack_1grow (&multilib_obstack
, 0);
6156 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6159 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6162 obstack_1grow (&multilib_obstack
, ' ');
6163 obstack_grow (&multilib_obstack
,
6164 multilib_defaults_raw
[i
],
6165 strlen (multilib_defaults_raw
[i
]));
6169 obstack_1grow (&multilib_obstack
, 0);
6170 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6173 /* Set up to remember the pathname of gcc and any options
6174 needed for collect. We use argv[0] instead of programname because
6175 we need the complete pathname. */
6176 obstack_init (&collect_obstack
);
6177 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6178 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6179 putenv (XOBFINISH (&collect_obstack
, char *));
6181 #ifdef INIT_ENVIRONMENT
6182 /* Set up any other necessary machine specific environment variables. */
6183 putenv (INIT_ENVIRONMENT
);
6186 /* Make a table of what switches there are (switches, n_switches).
6187 Make a table of specified input files (infiles, n_infiles).
6188 Decode switches that are handled locally. */
6190 process_command (argc
, (const char **) argv
);
6192 /* Initialize the vector of specs to just the default.
6193 This means one element containing 0s, as a terminator. */
6195 compilers
= xmalloc (sizeof default_compilers
);
6196 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6197 n_compilers
= n_default_compilers
;
6199 /* Read specs from a file if there is one. */
6201 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6202 spec_version
, dir_separator_str
, NULL
);
6203 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6205 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6206 /* Read the specs file unless it is a default one. */
6207 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6208 read_specs (specs_file
, TRUE
);
6212 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6213 for any override of as, ld and libraries. */
6214 specs_file
= alloca (strlen (standard_exec_prefix
)
6215 + strlen (just_machine_suffix
) + sizeof ("specs"));
6217 strcpy (specs_file
, standard_exec_prefix
);
6218 strcat (specs_file
, just_machine_suffix
);
6219 strcat (specs_file
, "specs");
6220 if (access (specs_file
, R_OK
) == 0)
6221 read_specs (specs_file
, TRUE
);
6223 /* Process any configure-time defaults specified for the command line
6224 options, via OPTION_DEFAULT_SPECS. */
6225 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6226 do_option_spec (option_default_specs
[i
].name
,
6227 option_default_specs
[i
].spec
);
6229 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6230 of the command line. */
6232 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6233 do_self_spec (driver_self_specs
[i
]);
6235 /* If not cross-compiling, look for executables in the standard
6237 if (*cross_compile
== '0')
6239 if (*md_exec_prefix
)
6241 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6242 PREFIX_PRIORITY_LAST
, 0, 0);
6246 /* Process sysroot_suffix_spec. */
6247 if (*sysroot_suffix_spec
!= 0
6248 && do_spec_2 (sysroot_suffix_spec
) == 0)
6250 if (argbuf_index
> 1)
6251 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6252 else if (argbuf_index
== 1)
6253 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6256 #ifdef HAVE_LD_SYSROOT
6257 /* Pass the --sysroot option to the linker, if it supports that. If
6258 there is a sysroot_suffix_spec, it has already been processed by
6259 this point, so target_system_root really is the system root we
6261 if (target_system_root
)
6263 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6264 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6265 set_spec ("link", XOBFINISH (&obstack
, const char *));
6269 /* Process sysroot_hdrs_suffix_spec. */
6270 if (*sysroot_hdrs_suffix_spec
!= 0
6271 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6273 if (argbuf_index
> 1)
6274 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6275 else if (argbuf_index
== 1)
6276 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6279 /* Look for startfiles in the standard places. */
6280 if (*startfile_prefix_spec
!= 0
6281 && do_spec_2 (startfile_prefix_spec
) == 0
6282 && do_spec_1 (" ", 0, NULL
) == 0)
6285 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6286 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6287 PREFIX_PRIORITY_LAST
, 0, 1);
6289 /* We should eventually get rid of all these and stick to
6290 startfile_prefix_spec exclusively. */
6291 else if (*cross_compile
== '0' || target_system_root
)
6293 if (*md_startfile_prefix
)
6294 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6295 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6297 if (*md_startfile_prefix_1
)
6298 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6299 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6301 /* If standard_startfile_prefix is relative, base it on
6302 standard_exec_prefix. This lets us move the installed tree
6303 as a unit. If GCC_EXEC_PREFIX is defined, base
6304 standard_startfile_prefix on that as well.
6306 If the prefix is relative, only search it for native compilers;
6307 otherwise we will search a directory containing host libraries. */
6308 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6309 add_sysrooted_prefix (&startfile_prefixes
,
6310 standard_startfile_prefix
, "BINUTILS",
6311 PREFIX_PRIORITY_LAST
, 0, 1);
6312 else if (*cross_compile
== '0')
6314 add_prefix (&startfile_prefixes
,
6315 concat (gcc_exec_prefix
6316 ? gcc_exec_prefix
: standard_exec_prefix
,
6318 standard_startfile_prefix
, NULL
),
6319 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6322 /* Sysrooted prefixes are relocated because target_system_root is
6323 also relocated by gcc_exec_prefix. */
6324 if (*standard_startfile_prefix_1
)
6325 add_sysrooted_prefix (&startfile_prefixes
,
6326 standard_startfile_prefix_1
, "BINUTILS",
6327 PREFIX_PRIORITY_LAST
, 0, 1);
6328 if (*standard_startfile_prefix_2
)
6329 add_sysrooted_prefix (&startfile_prefixes
,
6330 standard_startfile_prefix_2
, "BINUTILS",
6331 PREFIX_PRIORITY_LAST
, 0, 1);
6334 /* Process any user specified specs in the order given on the command
6336 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6338 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6340 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6343 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6344 if (gcc_exec_prefix
)
6345 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6346 spec_version
, dir_separator_str
, NULL
);
6348 /* Now we have the specs.
6349 Set the `valid' bits for switches that match anything in any spec. */
6351 validate_all_switches ();
6353 /* Now that we have the switches and the specs, set
6354 the subdirectory based on the options. */
6355 set_multilib_dir ();
6357 /* Warn about any switches that no pass was interested in. */
6359 for (i
= 0; (int) i
< n_switches
; i
++)
6360 if (! switches
[i
].validated
)
6361 error ("unrecognized option '-%s'", switches
[i
].part1
);
6363 /* Obey some of the options. */
6365 if (print_search_dirs
)
6367 printf (_("install: %s%s\n"),
6368 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6369 gcc_exec_prefix
? "" : machine_suffix
);
6370 printf (_("programs: %s\n"),
6371 build_search_list (&exec_prefixes
, "", false, false));
6372 printf (_("libraries: %s\n"),
6373 build_search_list (&startfile_prefixes
, "", false, true));
6377 if (print_file_name
)
6379 printf ("%s\n", find_file (print_file_name
));
6383 if (print_prog_name
)
6385 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6386 printf ("%s\n", (newname
? newname
: print_prog_name
));
6390 if (print_multi_lib
)
6392 print_multilib_info ();
6396 if (print_multi_directory
)
6398 if (multilib_dir
== NULL
)
6401 printf ("%s\n", multilib_dir
);
6405 if (print_multi_os_directory
)
6407 if (multilib_os_dir
== NULL
)
6410 printf ("%s\n", multilib_os_dir
);
6414 if (print_help_list
)
6420 printf (_("\nFor bug reporting instructions, please see:\n"));
6421 printf ("%s.\n", bug_report_url
);
6426 /* We do not exit here. Instead we have created a fake input file
6427 called 'help-dummy' which needs to be compiled, and we pass this
6428 on the various sub-processes, along with the --help switch. */
6436 notice ("Target: %s\n", spec_machine
);
6437 notice ("Configured with: %s\n", configuration_arguments
);
6439 #ifdef THREAD_MODEL_SPEC
6440 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6441 but there's no point in doing all this processing just to get
6442 thread_model back. */
6443 obstack_init (&obstack
);
6444 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6445 obstack_1grow (&obstack
, '\0');
6446 thrmod
= XOBFINISH (&obstack
, const char *);
6448 thrmod
= thread_model
;
6451 notice ("Thread model: %s\n", thrmod
);
6453 /* compiler_version is truncated at the first space when initialized
6454 from version string, so truncate version_string at the first space
6455 before comparing. */
6456 for (n
= 0; version_string
[n
]; n
++)
6457 if (version_string
[n
] == ' ')
6460 if (! strncmp (version_string
, compiler_version
, n
)
6461 && compiler_version
[n
] == 0)
6462 notice ("gcc version %s\n", version_string
);
6464 notice ("gcc driver version %s executing gcc version %s\n",
6465 version_string
, compiler_version
);
6471 if (n_infiles
== added_libraries
)
6472 fatal ("no input files");
6474 /* Make a place to record the compiler output file names
6475 that correspond to the input files. */
6478 i
+= lang_specific_extra_outfiles
;
6479 outfiles
= XCNEWVEC (const char *, i
);
6481 /* Record which files were specified explicitly as link input. */
6483 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6486 combine_inputs
= true;
6488 combine_inputs
= false;
6490 for (i
= 0; (int) i
< n_infiles
; i
++)
6492 const char *name
= infiles
[i
].name
;
6493 struct compiler
*compiler
= lookup_compiler (name
,
6495 infiles
[i
].language
);
6497 if (compiler
&& !(compiler
->combinable
))
6498 combine_inputs
= false;
6500 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6501 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6502 infiles
[i
].incompiler
= compiler
;
6506 input_file_compiler
= compiler
;
6507 infiles
[i
].incompiler
= compiler
;
6511 /* Since there is no compiler for this input file, assume it is a
6513 explicit_link_files
[i
] = 1;
6514 infiles
[i
].incompiler
= NULL
;
6516 infiles
[i
].compiled
= false;
6517 infiles
[i
].preprocessed
= false;
6520 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6521 fatal ("cannot specify -o with -c or -S with multiple files");
6523 if (combine_flag
&& save_temps_flag
)
6525 bool save_combine_inputs
= combine_inputs
;
6526 /* Must do a separate pre-processing pass for C & Objective-C files, to
6527 obtain individual .i files. */
6529 combine_inputs
= false;
6530 for (i
= 0; (int) i
< n_infiles
; i
++)
6532 int this_file_error
= 0;
6534 input_file_number
= i
;
6535 set_input (infiles
[i
].name
);
6536 if (infiles
[i
].incompiler
6537 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6538 input_file_compiler
= infiles
[i
].incompiler
;
6542 if (input_file_compiler
)
6544 if (input_file_compiler
->spec
[0] == '#')
6546 error ("%s: %s compiler not installed on this system",
6547 input_filename
, &input_file_compiler
->spec
[1]);
6548 this_file_error
= 1;
6552 value
= do_spec (input_file_compiler
->spec
);
6553 infiles
[i
].preprocessed
= true;
6554 if (!have_o_argbuf_index
)
6555 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6556 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6557 infiles
[i
].incompiler
6558 = lookup_compiler (infiles
[i
].name
,
6559 strlen (infiles
[i
].name
),
6560 infiles
[i
].language
);
6563 this_file_error
= 1;
6567 if (this_file_error
)
6569 delete_failure_queue ();
6573 clear_failure_queue ();
6575 combine_inputs
= save_combine_inputs
;
6578 for (i
= 0; (int) i
< n_infiles
; i
++)
6580 int this_file_error
= 0;
6582 /* Tell do_spec what to substitute for %i. */
6584 input_file_number
= i
;
6585 set_input (infiles
[i
].name
);
6587 if (infiles
[i
].compiled
)
6590 /* Use the same thing in %o, unless cp->spec says otherwise. */
6592 outfiles
[i
] = input_filename
;
6594 /* Figure out which compiler from the file's suffix. */
6596 if (! combine_inputs
)
6598 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6599 infiles
[i
].language
);
6601 input_file_compiler
= infiles
[i
].incompiler
;
6603 if (input_file_compiler
)
6605 /* Ok, we found an applicable compiler. Run its spec. */
6607 if (input_file_compiler
->spec
[0] == '#')
6609 error ("%s: %s compiler not installed on this system",
6610 input_filename
, &input_file_compiler
->spec
[1]);
6611 this_file_error
= 1;
6615 value
= do_spec (input_file_compiler
->spec
);
6616 infiles
[i
].compiled
= true;
6618 this_file_error
= 1;
6622 /* If this file's name does not contain a recognized suffix,
6623 record it as explicit linker input. */
6626 explicit_link_files
[i
] = 1;
6628 /* Clear the delete-on-failure queue, deleting the files in it
6629 if this compilation failed. */
6631 if (this_file_error
)
6633 delete_failure_queue ();
6636 /* If this compilation succeeded, don't delete those files later. */
6637 clear_failure_queue ();
6640 /* Reset the input file name to the first compile/object file name, for use
6641 with %b in LINK_SPEC. We use the first input file that we can find
6642 a compiler to compile it instead of using infiles.language since for
6643 languages other than C we use aliases that we then lookup later. */
6648 for (i
= 0; i
< n_infiles
; i
++)
6649 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6651 set_input (infiles
[i
].name
);
6656 if (error_count
== 0)
6658 /* Make sure INPUT_FILE_NUMBER points to first available open
6660 input_file_number
= n_infiles
;
6661 if (lang_specific_pre_link ())
6665 /* Determine if there are any linker input files. */
6666 num_linker_inputs
= 0;
6667 for (i
= 0; (int) i
< n_infiles
; i
++)
6668 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6669 num_linker_inputs
++;
6671 /* Run ld to link all the compiler output files. */
6673 if (num_linker_inputs
> 0 && error_count
== 0)
6675 int tmp
= execution_count
;
6677 /* We'll use ld if we can't find collect2. */
6678 if (! strcmp (linker_name_spec
, "collect2"))
6680 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6682 linker_name_spec
= "ld";
6684 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6686 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6687 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6689 value
= do_spec (link_command_spec
);
6692 linker_was_run
= (tmp
!= execution_count
);
6695 /* If options said don't run linker,
6696 complain about input files to be given to the linker. */
6698 if (! linker_was_run
&& error_count
== 0)
6699 for (i
= 0; (int) i
< n_infiles
; i
++)
6700 if (explicit_link_files
[i
])
6701 error ("%s: linker input file unused because linking not done",
6704 /* Delete some or all of the temporary files we made. */
6707 delete_failure_queue ();
6708 delete_temp_files ();
6710 if (print_help_list
)
6712 printf (("\nFor bug reporting instructions, please see:\n"));
6713 printf ("%s\n", bug_report_url
);
6716 return (signal_count
!= 0 ? 2
6717 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6721 /* Find the proper compilation spec for the file name NAME,
6722 whose length is LENGTH. LANGUAGE is the specified language,
6723 or 0 if this file is to be passed to the linker. */
6725 static struct compiler
*
6726 lookup_compiler (const char *name
, size_t length
, const char *language
)
6728 struct compiler
*cp
;
6730 /* If this was specified by the user to be a linker input, indicate that. */
6731 if (language
!= 0 && language
[0] == '*')
6734 /* Otherwise, look for the language, if one is spec'd. */
6737 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6738 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6741 error ("language %s not recognized", language
);
6745 /* Look for a suffix. */
6746 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6748 if (/* The suffix `-' matches only the file name `-'. */
6749 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6750 || (strlen (cp
->suffix
) < length
6751 /* See if the suffix matches the end of NAME. */
6752 && !strcmp (cp
->suffix
,
6753 name
+ length
- strlen (cp
->suffix
))
6758 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6759 /* Look again, but case-insensitively this time. */
6761 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6763 if (/* The suffix `-' matches only the file name `-'. */
6764 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6765 || (strlen (cp
->suffix
) < length
6766 /* See if the suffix matches the end of NAME. */
6767 && ((!strcmp (cp
->suffix
,
6768 name
+ length
- strlen (cp
->suffix
))
6769 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6770 && !strcasecmp (cp
->suffix
,
6771 name
+ length
- strlen (cp
->suffix
)))
6777 if (cp
>= compilers
)
6779 if (cp
->spec
[0] != '@')
6780 /* A non-alias entry: return it. */
6783 /* An alias entry maps a suffix to a language.
6784 Search for the language; pass 0 for NAME and LENGTH
6785 to avoid infinite recursion if language not found. */
6786 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6792 save_string (const char *s
, int len
)
6794 char *result
= XNEWVEC (char, len
+ 1);
6796 memcpy (result
, s
, len
);
6802 pfatal_with_name (const char *name
)
6804 perror_with_name (name
);
6805 delete_temp_files ();
6810 perror_with_name (const char *name
)
6812 error ("%s: %s", name
, xstrerror (errno
));
6815 /* Output an error message and exit. */
6818 fancy_abort (const char *file
, int line
, const char *func
)
6820 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6823 /* Output an error message and exit. */
6826 fatal_ice (const char *cmsgid
, ...)
6830 va_start (ap
, cmsgid
);
6832 fprintf (stderr
, "%s: ", programname
);
6833 vfprintf (stderr
, _(cmsgid
), ap
);
6835 fprintf (stderr
, "\n");
6836 delete_temp_files ();
6837 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
6841 fatal (const char *cmsgid
, ...)
6845 va_start (ap
, cmsgid
);
6847 fprintf (stderr
, "%s: ", programname
);
6848 vfprintf (stderr
, _(cmsgid
), ap
);
6850 fprintf (stderr
, "\n");
6851 delete_temp_files ();
6855 /* The argument is actually c-format, not gcc-internal-format,
6856 but because functions with identical names are used through
6857 the rest of the compiler with gcc-internal-format, we just
6858 need to hope all users of these functions use the common
6859 subset between c-format and gcc-internal-format. */
6862 error (const char *gmsgid
, ...)
6866 va_start (ap
, gmsgid
);
6867 fprintf (stderr
, "%s: ", programname
);
6868 vfprintf (stderr
, _(gmsgid
), ap
);
6871 fprintf (stderr
, "\n");
6875 notice (const char *cmsgid
, ...)
6879 va_start (ap
, cmsgid
);
6880 vfprintf (stderr
, _(cmsgid
), ap
);
6885 validate_switches_from_spec (const char *spec
)
6887 const char *p
= spec
;
6890 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6891 /* We have a switch spec. */
6892 p
= validate_switches (p
+ 1);
6896 validate_all_switches (void)
6898 struct compiler
*comp
;
6899 struct spec_list
*spec
;
6901 for (comp
= compilers
; comp
->spec
; comp
++)
6902 validate_switches_from_spec (comp
->spec
);
6904 /* Look through the linked list of specs read from the specs file. */
6905 for (spec
= specs
; spec
; spec
= spec
->next
)
6906 validate_switches_from_spec (*spec
->ptr_spec
);
6908 validate_switches_from_spec (link_command_spec
);
6911 /* Look at the switch-name that comes after START
6912 and mark as valid all supplied switches that match it. */
6915 validate_switches (const char *start
)
6917 const char *p
= start
;
6921 bool suffix
= false;
6922 bool starred
= false;
6924 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6937 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6938 || *p
== ',' || *p
== '.' || *p
== '@')
6943 starred
= true, p
++;
6949 /* Mark all matching switches as valid. */
6950 for (i
= 0; i
< n_switches
; i
++)
6951 if (!strncmp (switches
[i
].part1
, atom
, len
)
6952 && (starred
|| switches
[i
].part1
[len
] == 0))
6953 switches
[i
].validated
= 1;
6957 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6960 if (*p
&& p
[-1] == ':')
6962 while (*p
&& *p
!= ';' && *p
!= '}')
6967 if (*p
== '{' || *p
== '<')
6968 p
= validate_switches (p
+1);
6969 else if (p
[0] == 'W' && p
[1] == '{')
6970 p
= validate_switches (p
+2);
6977 if (*p
&& p
[-1] == ';')
6991 static struct mdswitchstr
*mdswitches
;
6992 static int n_mdswitches
;
6994 /* Check whether a particular argument was used. The first time we
6995 canonicalize the switches to keep only the ones we care about. */
6998 used_arg (const char *p
, int len
)
7003 const char *replace
;
7008 static struct mswitchstr
*mswitches
;
7009 static int n_mswitches
;
7014 struct mswitchstr
*matches
;
7018 /* Break multilib_matches into the component strings of string
7019 and replacement string. */
7020 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7024 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
7026 q
= multilib_matches
;
7035 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7039 matches
[i
].len
= q
- matches
[i
].str
;
7041 matches
[i
].replace
= ++q
;
7042 while (*q
!= ';' && *q
!= '\0')
7045 goto invalid_matches
;
7048 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7054 /* Now build a list of the replacement string for switches that we care
7055 about. Make sure we allocate at least one entry. This prevents
7056 xmalloc from calling fatal, and prevents us from re-executing this
7059 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7060 for (i
= 0; i
< n_switches
; i
++)
7061 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
7063 int xlen
= strlen (switches
[i
].part1
);
7064 for (j
= 0; j
< cnt
; j
++)
7065 if (xlen
== matches
[j
].len
7066 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7068 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7069 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7070 mswitches
[n_mswitches
].replace
= (char *) 0;
7071 mswitches
[n_mswitches
].rep_len
= 0;
7077 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7078 on the command line nor any options mutually incompatible with
7080 for (i
= 0; i
< n_mdswitches
; i
++)
7084 for (q
= multilib_options
; *q
!= '\0'; q
++)
7090 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7091 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7093 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7100 if (*q
!= ' ' && *q
!= '\0')
7102 while (*r
!= ' ' && *r
!= '\0')
7105 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7108 if (used_arg (r
, q
- r
))
7113 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7114 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7115 mswitches
[n_mswitches
].replace
= (char *) 0;
7116 mswitches
[n_mswitches
].rep_len
= 0;
7129 for (i
= 0; i
< n_mswitches
; i
++)
7130 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7137 default_arg (const char *p
, int len
)
7141 for (i
= 0; i
< n_mdswitches
; i
++)
7142 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7148 /* Work out the subdirectory to use based on the options. The format of
7149 multilib_select is a list of elements. Each element is a subdirectory
7150 name followed by a list of options followed by a semicolon. The format
7151 of multilib_exclusions is the same, but without the preceding
7152 directory. First gcc will check the exclusions, if none of the options
7153 beginning with an exclamation point are present, and all of the other
7154 options are present, then we will ignore this completely. Passing
7155 that, gcc will consider each multilib_select in turn using the same
7156 rules for matching the options. If a match is found, that subdirectory
7160 set_multilib_dir (void)
7163 unsigned int this_path_len
;
7164 const char *this_path
, *this_arg
;
7165 const char *start
, *end
;
7167 int ok
, ndfltok
, first
;
7170 start
= multilib_defaults
;
7171 while (*start
== ' ' || *start
== '\t')
7173 while (*start
!= '\0')
7176 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7178 while (*start
== ' ' || *start
== '\t')
7186 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7187 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7189 while (*start
== ' ' || *start
== '\t')
7195 for (end
= start
+ 1;
7196 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7199 obstack_grow (&multilib_obstack
, start
, end
- start
);
7200 obstack_1grow (&multilib_obstack
, 0);
7201 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7202 mdswitches
[i
++].len
= end
- start
;
7209 p
= multilib_exclusions
;
7212 /* Ignore newlines. */
7219 /* Check the arguments. */
7226 fatal ("multilib exclusions '%s' is invalid",
7227 multilib_exclusions
);
7237 while (*p
!= ' ' && *p
!= ';')
7240 goto invalid_exclusions
;
7244 if (*this_arg
!= '!')
7252 ok
= used_arg (this_arg
, p
- this_arg
);
7267 p
= multilib_select
;
7270 /* Ignore newlines. */
7277 /* Get the initial path. */
7284 fatal ("multilib select '%s' is invalid",
7289 this_path_len
= p
- this_path
;
7291 /* Check the arguments. */
7298 goto invalid_select
;
7307 while (*p
!= ' ' && *p
!= ';')
7310 goto invalid_select
;
7314 if (*this_arg
!= '!')
7322 /* If this is a default argument, we can just ignore it.
7323 This is true even if this_arg begins with '!'. Beginning
7324 with '!' does not mean that this argument is necessarily
7325 inappropriate for this library: it merely means that
7326 there is a more specific library which uses this
7327 argument. If this argument is a default, we need not
7328 consider that more specific library. */
7329 ok
= used_arg (this_arg
, p
- this_arg
);
7336 if (default_arg (this_arg
, p
- this_arg
))
7345 if (this_path_len
!= 1
7346 || this_path
[0] != '.')
7348 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7351 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7352 new_multilib_dir
[this_path_len
] = '\0';
7353 q
= strchr (new_multilib_dir
, ':');
7356 multilib_dir
= new_multilib_dir
;
7363 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7365 while (q
< end
&& *q
!= ':')
7369 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7370 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7371 new_multilib_os_dir
[end
- q
- 1] = '\0';
7372 multilib_os_dir
= new_multilib_os_dir
;
7380 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7381 && strcmp (multilib_os_dir
, ".") == 0)
7383 free ((char *) multilib_os_dir
);
7384 multilib_os_dir
= NULL
;
7386 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7387 multilib_os_dir
= multilib_dir
;
7390 /* Print out the multiple library subdirectory selection
7391 information. This prints out a series of lines. Each line looks
7392 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7393 required. Only the desired options are printed out, the negative
7394 matches. The options are print without a leading dash. There are
7395 no spaces to make it easy to use the information in the shell.
7396 Each subdirectory is printed only once. This assumes the ordering
7397 generated by the genmultilib script. Also, we leave out ones that match
7401 print_multilib_info (void)
7403 const char *p
= multilib_select
;
7404 const char *last_path
= 0, *this_path
;
7406 unsigned int last_path_len
= 0;
7411 /* Ignore newlines. */
7418 /* Get the initial path. */
7425 fatal ("multilib select '%s' is invalid", multilib_select
);
7431 /* When --disable-multilib was used but target defines
7432 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7433 to find multilib_os_dir, so skip them from output. */
7434 if (this_path
[0] == '.' && this_path
[1] == ':')
7437 /* Check for matches with the multilib_exclusions. We don't bother
7438 with the '!' in either list. If any of the exclusion rules match
7439 all of its options with the select rule, we skip it. */
7441 const char *e
= multilib_exclusions
;
7442 const char *this_arg
;
7447 /* Ignore newlines. */
7454 /* Check the arguments. */
7463 fatal ("multilib exclusion '%s' is invalid",
7464 multilib_exclusions
);
7475 while (*e
!= ' ' && *e
!= ';')
7478 goto invalid_exclusion
;
7486 int len
= e
- this_arg
;
7489 goto invalid_select
;
7493 while (*q
!= ' ' && *q
!= ';')
7496 goto invalid_select
;
7500 if (! strncmp (arg
, this_arg
,
7501 (len
< q
- arg
) ? q
- arg
: len
)
7502 || default_arg (this_arg
, e
- this_arg
))
7532 /* If this is a duplicate, skip it. */
7533 skip
= (last_path
!= 0
7534 && (unsigned int) (p
- this_path
) == last_path_len
7535 && ! strncmp (last_path
, this_path
, last_path_len
));
7537 last_path
= this_path
;
7538 last_path_len
= p
- this_path
;
7541 /* If this directory requires any default arguments, we can skip
7542 it. We will already have printed a directory identical to
7543 this one which does not require that default argument. */
7554 goto invalid_select
;
7561 while (*q
!= ' ' && *q
!= ';')
7564 goto invalid_select
;
7569 && default_arg (arg
, q
- arg
))
7584 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7595 goto invalid_select
;
7603 use_arg
= *p
!= '!';
7608 while (*p
!= ' ' && *p
!= ';')
7611 goto invalid_select
;
7623 /* If there are extra options, print them now. */
7624 if (multilib_extra
&& *multilib_extra
)
7626 int print_at
= TRUE
;
7629 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7650 /* getenv built-in spec function.
7652 Returns the value of the environment variable given by its first
7653 argument, concatenated with the second argument. If the
7654 environment variable is not defined, a fatal error is issued. */
7657 getenv_spec_function (int argc
, const char **argv
)
7664 value
= getenv (argv
[0]);
7666 fatal ("environment variable \"%s\" not defined", argv
[0]);
7668 return concat (value
, argv
[1], NULL
);
7671 /* if-exists built-in spec function.
7673 Checks to see if the file specified by the absolute pathname in
7674 ARGS exists. Returns that pathname if found.
7676 The usual use for this function is to check for a library file
7677 (whose name has been expanded with %s). */
7680 if_exists_spec_function (int argc
, const char **argv
)
7682 /* Must have only one argument. */
7683 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7689 /* if-exists-else built-in spec function.
7691 This is like if-exists, but takes an additional argument which
7692 is returned if the first argument does not exist. */
7695 if_exists_else_spec_function (int argc
, const char **argv
)
7697 /* Must have exactly two arguments. */
7701 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7707 /* replace-outfile built-in spec function.
7709 This looks for the first argument in the outfiles array's name and
7710 replaces it with the second argument. */
7713 replace_outfile_spec_function (int argc
, const char **argv
)
7716 /* Must have exactly two arguments. */
7720 for (i
= 0; i
< n_infiles
; i
++)
7722 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7723 outfiles
[i
] = xstrdup (argv
[1]);
7728 /* Given two version numbers, compares the two numbers.
7729 A version number must match the regular expression
7730 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7733 compare_version_strings (const char *v1
, const char *v2
)
7738 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7739 REG_EXTENDED
| REG_NOSUB
) != 0)
7741 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7742 if (rresult
== REG_NOMATCH
)
7743 fatal ("invalid version number `%s'", v1
);
7744 else if (rresult
!= 0)
7746 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7747 if (rresult
== REG_NOMATCH
)
7748 fatal ("invalid version number `%s'", v2
);
7749 else if (rresult
!= 0)
7752 return strverscmp (v1
, v2
);
7756 /* version_compare built-in spec function.
7758 This takes an argument of the following form:
7760 <comparison-op> <arg1> [<arg2>] <switch> <result>
7762 and produces "result" if the comparison evaluates to true,
7763 and nothing if it doesn't.
7765 The supported <comparison-op> values are:
7767 >= true if switch is a later (or same) version than arg1
7769 < true if switch is an earlier version than arg1
7771 >< true if switch is arg1 or later, and earlier than arg2
7772 <> true if switch is earlier than arg1 or is arg2 or later
7774 If the switch is not present, the condition is false unless
7775 the first character of the <comparison-op> is '!'.
7778 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7779 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7782 version_compare_spec_function (int argc
, const char **argv
)
7786 const char *switch_value
= NULL
;
7791 fatal ("too few arguments to %%:version-compare");
7792 if (argv
[0][0] == '\0')
7794 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7796 if (argc
!= nargs
+ 3)
7797 fatal ("too many arguments to %%:version-compare");
7799 switch_len
= strlen (argv
[nargs
+ 1]);
7800 for (i
= 0; i
< n_switches
; i
++)
7801 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7802 && check_live_switch (i
, switch_len
))
7803 switch_value
= switches
[i
].part1
+ switch_len
;
7805 if (switch_value
== NULL
)
7809 comp1
= compare_version_strings (switch_value
, argv
[1]);
7811 comp2
= compare_version_strings (switch_value
, argv
[2]);
7813 comp2
= -1; /* This value unused. */
7816 switch (argv
[0][0] << 8 | argv
[0][1])
7818 case '>' << 8 | '=':
7819 result
= comp1
>= 0;
7821 case '!' << 8 | '<':
7822 result
= comp1
>= 0 || switch_value
== NULL
;
7827 case '!' << 8 | '>':
7828 result
= comp1
< 0 || switch_value
== NULL
;
7830 case '>' << 8 | '<':
7831 result
= comp1
>= 0 && comp2
< 0;
7833 case '<' << 8 | '>':
7834 result
= comp1
< 0 || comp2
>= 0;
7838 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
7843 return argv
[nargs
+ 2];
7846 /* %:include builtin spec function. This differs from %include in that it
7847 can be nested inside a spec, and thus be conditionalized. It takes
7848 one argument, the filename, and looks for it in the startfile path.
7849 The result is always NULL, i.e. an empty expansion. */
7852 include_spec_function (int argc
, const char **argv
)
7859 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, 0);
7860 read_specs (file
? file
: argv
[0], FALSE
);