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, 2008, 2009
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 3, 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 COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* This program is the user interface to the C compiler and possibly to
23 other compilers. It is used because compilation is a complicated procedure
24 which involves running several programs and passing temporary files between
25 them, forwarding the users switches to those programs selectively,
26 and deleting the temporary files at the end.
28 CC recognizes how to compile each input file by suffixes in the file names.
29 Once it knows which kind of compilation to perform, the procedure for
30 compilation is specified by a string called a "spec". */
32 /* A Short Introduction to Adding a Command-Line Option.
34 Before adding a command-line option, consider if it is really
35 necessary. Each additional command-line option adds complexity and
36 is difficult to remove in subsequent versions.
38 In the following, consider adding the command-line argument
41 1. Each command-line option is specified in the specs file. The
42 notation is described below in the comment entitled "The Specs
45 2. In this file, add an entry to "option_map" equating the long
46 `--' argument version and any shorter, single letter version. Read
47 the comments in the declaration of "struct option_map" for an
48 explanation. Do not omit the first `-'.
50 3. Look in the "specs" file to determine which program or option
51 list should be given the argument, e.g., "cc1_options". Add the
52 appropriate syntax for the shorter option version to the
53 corresponding "const char *" entry in this file. Omit the first
54 `-' from the option. For example, use `-bar', rather than `--bar'.
56 4. If the argument takes an argument, e.g., `--baz argument1',
57 modify either DEFAULT_SWITCH_TAKES_ARG or
58 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
61 5. Document the option in this file's display_help(). If the
62 option is passed to a subprogram, modify its corresponding
63 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
66 6. Compile and test. Make sure that your new specs file is being
67 read. For example, use a debugger to investigate the value of
68 "specs_file" in main(). */
72 #include "coretypes.h"
73 #include "multilib.h" /* before tm.h */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
88 # include <sys/mman.h>
90 /* This is on Solaris. */
91 # include <sys/types.h>
96 # define MAP_FAILED ((void *)-1)
99 /* By default there is no special suffix for target executables. */
100 /* FIXME: when autoconf is fixed, remove the host check - dj */
101 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
102 #define HAVE_TARGET_EXECUTABLE_SUFFIX
105 /* By default there is no special suffix for host executables. */
106 #ifdef HOST_EXECUTABLE_SUFFIX
107 #define HAVE_HOST_EXECUTABLE_SUFFIX
109 #define HOST_EXECUTABLE_SUFFIX ""
112 /* By default, the suffix for target object files is ".o". */
113 #ifdef TARGET_OBJECT_SUFFIX
114 #define HAVE_TARGET_OBJECT_SUFFIX
116 #define TARGET_OBJECT_SUFFIX ".o"
119 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
121 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
122 #ifndef LIBRARY_PATH_ENV
123 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
127 #define kill(p,s) raise(s)
130 /* If a stage of compilation returns an exit status >= 1,
131 compilation of that file ceases. */
133 #define MIN_FATAL_STATUS 1
135 /* Flag set by cppspec.c to 1. */
138 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
139 static bool at_file_supplied
;
141 /* Flag saying to pass the greatest exit code returned by a sub-process
142 to the calling program. */
143 static int pass_exit_codes
;
145 /* Definition of string containing the arguments given to configure. */
146 #include "configargs.h"
148 /* Flag saying to print the directories gcc will search through looking for
149 programs, libraries, etc. */
151 static int print_search_dirs
;
153 /* Flag saying to print the full filename of this file
154 as found through our usual search mechanism. */
156 static const char *print_file_name
= NULL
;
158 /* As print_file_name, but search for executable file. */
160 static const char *print_prog_name
= NULL
;
162 /* Flag saying to print the relative path we'd use to
163 find libgcc.a given the current compiler flags. */
165 static int print_multi_directory
;
167 static int print_sysroot
;
169 /* Flag saying to print the relative path we'd use to
170 find OS libraries given the current compiler flags. */
172 static int print_multi_os_directory
;
174 /* Flag saying to print the list of subdirectories and
175 compiler flags used to select them in a standard form. */
177 static int print_multi_lib
;
179 /* Flag saying to print the command line options understood by gcc and its
182 static int print_help_list
;
184 /* Flag saying to print the version of gcc and its sub-processes. */
186 static int print_version
;
188 /* Flag saying to print the sysroot suffix used for searching for
191 static int print_sysroot_headers_suffix
;
193 /* Flag indicating whether we should print the command and arguments */
195 static int verbose_flag
;
197 /* Flag indicating whether we should ONLY print the command and
198 arguments (like verbose_flag) without executing the command.
199 Displayed arguments are quoted so that the generated command
200 line is suitable for execution. This is intended for use in
201 shell scripts to capture the driver-generated command line. */
202 static int verbose_only_flag
;
204 /* Flag indicating how to print command line options of sub-processes. */
206 static int print_subprocess_help
;
208 /* Flag indicating whether we should report subprocess execution times
209 (if this is supported by the system - see pexecute.c). */
211 static int report_times
;
213 /* Whether we should report subprocess execution times to a file. */
215 FILE *report_times_to_file
= NULL
;
217 /* Nonzero means place this string before uses of /, so that include
218 and library files can be found in an alternate location. */
220 #ifdef TARGET_SYSTEM_ROOT
221 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
223 static const char *target_system_root
= 0;
226 /* Nonzero means pass the updated target_system_root to the compiler. */
228 static int target_system_root_changed
;
230 /* Nonzero means append this string to target_system_root. */
232 static const char *target_sysroot_suffix
= 0;
234 /* Nonzero means append this string to target_system_root for headers. */
236 static const char *target_sysroot_hdrs_suffix
= 0;
238 /* Nonzero means write "temp" files in source directory
239 and use the source file's name in them, and don't delete them. */
241 static enum save_temps
{
242 SAVE_TEMPS_NONE
, /* no -save-temps */
243 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
244 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
247 /* Output file to use to get the object directory for -save-temps=obj */
248 static char *save_temps_prefix
= 0;
249 static size_t save_temps_length
= 0;
251 /* Nonzero means pass multiple source files to the compiler at one time. */
253 static int combine_flag
= 0;
255 /* Nonzero means use pipes to communicate between subprocesses.
256 Overridden by either of the above two flags. */
258 static int use_pipes
;
260 /* The compiler version. */
262 static const char *compiler_version
;
264 /* The target version specified with -V */
266 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
268 /* The target machine specified with -b. */
270 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
272 /* Nonzero if cross-compiling.
273 When -b is used, the value comes from the `specs' file. */
275 #ifdef CROSS_DIRECTORY_STRUCTURE
276 static const char *cross_compile
= "1";
278 static const char *cross_compile
= "0";
281 #ifdef MODIFY_TARGET_NAME
283 /* Information on how to alter the target name based on a command-line
284 switch. The only case we support now is simply appending or deleting a
285 string to or from the end of the first part of the configuration name. */
287 enum add_del
{ADD
, DELETE
};
289 static const struct modify_target
291 const char *const sw
;
292 const enum add_del add_del
;
293 const char *const str
;
295 modify_target
[] = MODIFY_TARGET_NAME
;
298 /* The number of errors that have occurred; the link phase will not be
299 run if this is nonzero. */
300 static int error_count
= 0;
302 /* Greatest exit code of sub-processes that has been encountered up to
304 static int greatest_status
= 1;
306 /* This is the obstack which we use to allocate many strings. */
308 static struct obstack obstack
;
310 /* This is the obstack to build an environment variable to pass to
311 collect2 that describes all of the relevant switches of what to
312 pass the compiler in building the list of pointers to constructors
315 static struct obstack collect_obstack
;
317 /* This is a list of a wrapper program and its arguments.
318 e.g. wrapper_string of "strace,-c"
319 will cause all programs to run as
320 strace -c program arguments
323 static const char *wrapper_string
;
325 /* Forward declaration for prototypes. */
329 static void init_spec (void);
330 static void store_arg (const char *, int, int);
331 static void insert_wrapper (const char *);
332 static char *load_specs (const char *);
333 static void read_specs (const char *, int);
334 static void set_spec (const char *, const char *);
335 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
336 static char *build_search_list (const struct path_prefix
*, const char *,
338 static void xputenv (const char *);
339 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
341 static int access_check (const char *, int);
342 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
343 static void add_prefix (struct path_prefix
*, const char *, const char *,
345 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
346 const char *, int, int, int);
347 static void translate_options (int *, const char *const **);
348 static char *skip_whitespace (char *);
349 static void delete_if_ordinary (const char *);
350 static void delete_temp_files (void);
351 static void delete_failure_queue (void);
352 static void clear_failure_queue (void);
353 static int check_live_switch (int, int);
354 static const char *handle_braces (const char *);
355 static inline bool input_suffix_matches (const char *, const char *);
356 static inline bool switch_matches (const char *, const char *, int);
357 static inline void mark_matching_switches (const char *, const char *, int);
358 static inline void process_marked_switches (void);
359 static const char *process_brace_body (const char *, const char *, const char *, int, int);
360 static const struct spec_function
*lookup_spec_function (const char *);
361 static const char *eval_spec_function (const char *, const char *);
362 static const char *handle_spec_function (const char *);
363 static char *save_string (const char *, int);
364 static void set_collect_gcc_options (void);
365 static int do_spec_1 (const char *, int, const char *);
366 static int do_spec_2 (const char *);
367 static void do_option_spec (const char *, const char *);
368 static void do_self_spec (const char *);
369 static const char *find_file (const char *);
370 static int is_directory (const char *, bool);
371 static const char *validate_switches (const char *);
372 static void validate_all_switches (void);
373 static inline void validate_switches_from_spec (const char *);
374 static void give_switch (int, int);
375 static int used_arg (const char *, int);
376 static int default_arg (const char *, int);
377 static void set_multilib_dir (void);
378 static void print_multilib_info (void);
379 static void perror_with_name (const char *);
380 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
381 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
382 static void display_help (void);
383 static void add_preprocessor_option (const char *, int);
384 static void add_assembler_option (const char *, int);
385 static void add_linker_option (const char *, int);
386 static void process_command (int, const char **);
387 static int execute (void);
388 static void alloc_args (void);
389 static void clear_args (void);
390 static void fatal_error (int);
391 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
392 static void init_gcc_specs (struct obstack
*, const char *, const char *,
395 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
396 static const char *convert_filename (const char *, int, int);
399 static const char *getenv_spec_function (int, const char **);
400 static const char *if_exists_spec_function (int, const char **);
401 static const char *if_exists_else_spec_function (int, const char **);
402 static const char *replace_outfile_spec_function (int, const char **);
403 static const char *version_compare_spec_function (int, const char **);
404 static const char *include_spec_function (int, const char **);
405 static const char *print_asm_header_spec_function (int, const char **);
406 static const char *compare_debug_dump_opt_spec_function (int, const char **);
407 static const char *compare_debug_self_opt_spec_function (int, const char **);
408 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
410 /* The Specs Language
412 Specs are strings containing lines, each of which (if not blank)
413 is made up of a program name, and arguments separated by spaces.
414 The program name must be exact and start from root, since no path
415 is searched and it is unreliable to depend on the current working directory.
416 Redirection of input or output is not supported; the subprograms must
417 accept filenames saying what files to read and write.
419 In addition, the specs can contain %-sequences to substitute variable text
420 or for conditional text. Here is a table of all defined %-sequences.
421 Note that spaces are not generated automatically around the results of
422 expanding these sequences; therefore, you can concatenate them together
423 or with constant text in a single argument.
425 %% substitute one % into the program name or argument.
426 %i substitute the name of the input file being processed.
427 %b substitute the basename of the input file being processed.
428 This is the substring up to (and not including) the last period
429 and not including the directory unless -save-temps was specified
430 to put temporaries in a different location.
431 %B same as %b, but include the file suffix (text after the last period).
433 substitute a file name that has suffix SUFFIX and is chosen
434 once per compilation, and mark the argument a la %d. To reduce
435 exposure to denial-of-service attacks, the file name is now
436 chosen in a way that is hard to predict even when previously
437 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
438 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
439 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
440 had been pre-processed. Previously, %g was simply substituted
441 with a file name chosen once per compilation, without regard
442 to any appended suffix (which was therefore treated just like
443 ordinary text), making such attacks more likely to succeed.
445 like %g, but if -pipe is in effect, expands simply to "-".
447 like %g, but if -pipe is in effect, expands to nothing. (We have both
448 %| and %m to accommodate differences between system assemblers; see
449 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
451 like %g, but generates a new temporary file name even if %uSUFFIX
454 substitutes the last file name generated with %uSUFFIX, generating a
455 new one if there is no such last file name. In the absence of any
456 %uSUFFIX, this is just like %gSUFFIX, except they don't share
457 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
458 would involve the generation of two distinct file names, one
459 for each `%g.s' and another for each `%U.s'. Previously, %U was
460 simply substituted with a file name chosen for the previous %u,
461 without regard to any appended suffix.
463 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
464 writable, and if save-temps is off; otherwise, substitute the name
465 of a temporary file, just like %u. This temporary file is not
466 meant for communication between processes, but rather as a junk
469 substitutes .SUFFIX for the suffixes of a matched switch's args when
470 it is subsequently output with %*. SUFFIX is terminated by the next
472 %d marks the argument containing or following the %d as a
473 temporary file name, so that that file will be deleted if GCC exits
474 successfully. Unlike %g, this contributes no text to the argument.
475 %w marks the argument containing or following the %w as the
476 "output file" of this compilation. This puts the argument
477 into the sequence of arguments that %o will substitute later.
478 %V indicates that this compilation produces no "output file".
480 like %{...} but mark last argument supplied within
481 as a file to be deleted on failure.
482 %o substitutes the names of all the output files, with spaces
483 automatically placed around them. You should write spaces
484 around the %o as well or the results are undefined.
485 %o is for use in the specs for running the linker.
486 Input files whose names have no recognized suffix are not compiled
487 at all, but they are included among the output files, so they will
489 %O substitutes the suffix for object files. Note that this is
490 handled specially when it immediately follows %g, %u, or %U
491 (with or without a suffix argument) because of the need for
492 those to form complete file names. The handling is such that
493 %O is treated exactly as if it had already been substituted,
494 except that %g, %u, and %U do not currently support additional
495 SUFFIX characters following %O as they would following, for
497 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
498 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
499 and -B options) and -imultilib as necessary.
500 %s current argument is the name of a library or startup file of some sort.
501 Search for that file in a standard list of directories
502 and substitute the full name found.
503 %eSTR Print STR as an error message. STR is terminated by a newline.
504 Use this when inconsistent options are detected.
505 %nSTR Print STR as a notice. STR is terminated by a newline.
506 %x{OPTION} Accumulate an option for %X.
507 %X Output the accumulated linker options specified by compilations.
508 %Y Output the accumulated assembler options specified by compilations.
509 %Z Output the accumulated preprocessor options specified by compilations.
510 %a process ASM_SPEC as a spec.
511 This allows config.h to specify part of the spec for running as.
512 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
513 used here. This can be used to run a post-processor after the
514 assembler has done its job.
515 %D Dump out a -L option for each directory in startfile_prefixes.
516 If multilib_dir is set, extra entries are generated with it affixed.
517 %l process LINK_SPEC as a spec.
518 %L process LIB_SPEC as a spec.
519 %G process LIBGCC_SPEC as a spec.
520 %R Output the concatenation of target_system_root and
521 target_sysroot_suffix.
522 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
523 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
524 %C process CPP_SPEC as a spec.
525 %1 process CC1_SPEC as a spec.
526 %2 process CC1PLUS_SPEC as a spec.
527 %* substitute the variable part of a matched option. (See below.)
528 Note that each comma in the substituted string is replaced by
530 %<S remove all occurrences of -S from the command line.
531 Note - this command is position dependent. % commands in the
532 spec string before this one will see -S, % commands in the
533 spec string after this one will not.
534 %<S* remove all occurrences of all switches beginning with -S from the
537 Call the named function FUNCTION, passing it ARGS. ARGS is
538 first processed as a nested spec string, then split into an
539 argument vector in the usual fashion. The function returns
540 a string which is processed as if it had appeared literally
541 as part of the current spec.
542 %{S} substitutes the -S switch, if that switch was given to GCC.
543 If that switch was not specified, this substitutes nothing.
544 Here S is a metasyntactic variable.
545 %{S*} substitutes all the switches specified to GCC whose names start
546 with -S. This is used for -o, -I, etc; switches that take
547 arguments. GCC considers `-o foo' as being one switch whose
548 name starts with `o'. %{o*} would substitute this text,
549 including the space; thus, two arguments would be generated.
550 %{S*&T*} likewise, but preserve order of S and T options (the order
551 of S and T in the spec is not significant). Can be any number
552 of ampersand-separated variables; for each the wild card is
553 optional. Useful for CPP as %{D*&U*&A*}.
555 %{S:X} substitutes X, if the -S switch was given to GCC.
556 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
557 %{S*:X} substitutes X if one or more switches whose names start
558 with -S was given to GCC. Normally X is substituted only
559 once, no matter how many such switches appeared. However,
560 if %* appears somewhere in X, then X will be substituted
561 once for each matching switch, with the %* replaced by the
562 part of that switch that matched the '*'.
563 %{.S:X} substitutes X, if processing a file with suffix S.
564 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
565 %{,S:X} substitutes X, if processing a file which will use spec S.
566 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
568 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
569 combined with '!', '.', ',', and '*' as above binding stronger
571 If %* appears in X, all of the alternatives must be starred, and
572 only the first matching alternative is substituted.
573 %{S:X; if S was given to GCC, substitutes X;
574 T:Y; else if T was given to GCC, substitutes Y;
575 :D} else substitutes D. There can be as many clauses as you need.
576 This may be combined with '.', '!', ',', '|', and '*' as above.
578 %(Spec) processes a specification defined in a specs file as *Spec:
579 %[Spec] as above, but put __ around -D arguments
581 The conditional text X in a %{S:X} or similar construct may contain
582 other nested % constructs or spaces, or even newlines. They are
583 processed as usual, as described above. Trailing white space in X is
584 ignored. White space may also appear anywhere on the left side of the
585 colon in these constructs, except between . or * and the corresponding
588 The -O, -f, -m, and -W switches are handled specifically in these
589 constructs. If another value of -O or the negated form of a -f, -m, or
590 -W switch is found later in the command line, the earlier switch
591 value is ignored, except with {S*} where S is just one letter; this
592 passes all matching options.
594 The character | at the beginning of the predicate text is used to indicate
595 that a command should be piped to the following command, but only if -pipe
598 Note that it is built into GCC which switches take arguments and which
599 do not. You might think it would be useful to generalize this to
600 allow each compiler's spec to say which switches take arguments. But
601 this cannot be done in a consistent fashion. GCC cannot even decide
602 which input files have been specified without knowing which switches
603 take arguments, and it must know which input files to compile in order
604 to tell which compilers to run.
606 GCC also knows implicitly that arguments starting in `-l' are to be
607 treated as compiler output files, and passed to the linker in their
608 proper position among the other output files. */
610 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
612 /* config.h can define ASM_SPEC to provide extra args to the assembler
613 or extra switch-translations. */
618 /* config.h can define ASM_FINAL_SPEC to run a post processor after
619 the assembler has run. */
620 #ifndef ASM_FINAL_SPEC
621 #define ASM_FINAL_SPEC ""
624 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
625 or extra switch-translations. */
630 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
631 or extra switch-translations. */
636 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
637 or extra switch-translations. */
639 #define CC1PLUS_SPEC ""
642 /* config.h can define LINK_SPEC to provide extra args to the linker
643 or extra switch-translations. */
648 /* config.h can define LIB_SPEC to override the default libraries. */
650 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
655 /* XXX: valid only for GNU ld */
656 /* XXX: should exactly match hooks provided by libmudflap.a */
657 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
658 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
659 --wrap=mmap --wrap=munmap --wrap=alloca\
660 } %{fmudflapth: --wrap=pthread_create\
661 }} %{fmudflap|fmudflapth: --wrap=main}"
664 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
667 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
670 #if defined(REAL_LIBGCC_SPEC)
671 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
672 #elif defined(LINK_LIBGCC_SPECIAL_1)
673 /* Have gcc do the search for libgcc.a. */
674 #define LIBGCC_SPEC "libgcc.a%s"
676 #define LIBGCC_SPEC "-lgcc"
680 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
681 #ifndef STARTFILE_SPEC
682 #define STARTFILE_SPEC \
683 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
686 /* config.h can define SWITCHES_NEED_SPACES to control which options
687 require spaces between the option and the argument.
689 We define SWITCHES_NEED_SPACES to include "o" by default. This
690 causes "-ofoo.o" to be split into "-o foo.o" during the initial
691 processing of the command-line, before being seen by the specs
692 machinery. This makes sure we record "foo.o" as the temporary file
693 to be deleted in the case of error, rather than "-ofoo.o". */
694 #ifndef SWITCHES_NEED_SPACES
695 #define SWITCHES_NEED_SPACES "o"
698 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
700 #define ENDFILE_SPEC ""
704 #define LINKER_NAME "collect2"
707 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
708 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
713 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
715 #ifndef ASM_DEBUG_SPEC
716 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
717 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
718 # define ASM_DEBUG_SPEC \
719 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
720 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
721 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
723 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
724 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
726 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
727 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
731 #ifndef ASM_DEBUG_SPEC
732 # define ASM_DEBUG_SPEC ""
735 /* Here is the spec for running the linker, after compiling all files. */
737 /* This is overridable by the target in case they need to specify the
738 -lgcc and -lc order specially, yet not require them to override all
739 of LINK_COMMAND_SPEC. */
740 #ifndef LINK_GCC_C_SEQUENCE_SPEC
741 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
744 #ifndef LINK_SSP_SPEC
745 #ifdef TARGET_LIBC_PROVIDES_SSP
746 #define LINK_SSP_SPEC "%{fstack-protector:}"
748 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
752 #ifndef LINK_PIE_SPEC
754 #define LINK_PIE_SPEC "%{pie:-pie} "
756 #define LINK_PIE_SPEC "%{pie:} "
760 #ifndef LINK_BUILDID_SPEC
761 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
762 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
767 /* -u* was put back because both BSD and SysV seem to support it. */
768 /* %{static:} simply prevents an error message if the target machine
769 doesn't handle -static. */
770 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
771 scripts which exist in user specified directories, or in standard
773 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
774 to understand them. In practice, this means it had better be collect2. */
775 #ifndef LINK_COMMAND_SPEC
776 #define LINK_COMMAND_SPEC "\
777 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
779 %{fuse-linker-plugin: \
780 -plugin %(linker_plugin_file) \
781 -plugin-opt=%(lto_wrapper) \
782 -plugin-opt=%(lto_gcc) \
783 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
784 %{static:-plugin-opt=-pass-through=-lc} \
785 %{O*:-plugin-opt=-O%*} \
786 %{w:-plugin-opt=-w} \
787 %{f*:-plugin-opt=-f%*} \
789 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
790 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
791 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
792 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
793 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
794 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
795 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
796 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
799 #ifndef LINK_LIBGCC_SPEC
800 /* Generate -L options for startfile prefix list. */
801 # define LINK_LIBGCC_SPEC "%D"
804 #ifndef STARTFILE_PREFIX_SPEC
805 # define STARTFILE_PREFIX_SPEC ""
809 # define SYSROOT_SPEC "--sysroot=%R"
812 #ifndef SYSROOT_SUFFIX_SPEC
813 # define SYSROOT_SUFFIX_SPEC ""
816 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
817 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
820 static const char *asm_debug
;
821 static const char *cpp_spec
= CPP_SPEC
;
822 static const char *cc1_spec
= CC1_SPEC
;
823 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
824 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
825 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
826 static const char *asm_spec
= ASM_SPEC
;
827 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
828 static const char *link_spec
= LINK_SPEC
;
829 static const char *lib_spec
= LIB_SPEC
;
830 static const char *mfwrap_spec
= MFWRAP_SPEC
;
831 static const char *mflib_spec
= MFLIB_SPEC
;
832 static const char *link_gomp_spec
= "";
833 static const char *libgcc_spec
= LIBGCC_SPEC
;
834 static const char *endfile_spec
= ENDFILE_SPEC
;
835 static const char *startfile_spec
= STARTFILE_SPEC
;
836 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
837 static const char *linker_name_spec
= LINKER_NAME
;
838 static const char *linker_plugin_file_spec
= "";
839 static const char *lto_wrapper_spec
= "";
840 static const char *lto_gcc_spec
= "";
841 static const char *lto_libgcc_spec
= "";
842 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
843 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
844 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
845 static const char *sysroot_spec
= SYSROOT_SPEC
;
846 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
847 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
849 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
850 There should be no need to override these in target dependent files,
851 but we need to copy them to the specs file so that newer versions
852 of the GCC driver can correctly drive older tool chains with the
853 appropriate -B options. */
855 /* When cpplib handles traditional preprocessing, get rid of this, and
856 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
857 that we default the front end language better. */
858 static const char *trad_capable_cpp
=
859 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
861 /* We don't wrap .d files in %W{} since a missing .d file, and
862 therefore no dependency entry, confuses make into thinking a .o
863 file that happens to exist is up-to-date. */
864 static const char *cpp_unique_options
=
865 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
866 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
867 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
868 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
869 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
870 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
871 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
872 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
873 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
874 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
877 /* This contains cpp options which are common with cc1_options and are passed
878 only when preprocessing only to avoid duplication. We pass the cc1 spec
879 options to the preprocessor so that it the cc1 spec may manipulate
880 options used to set target flags. Those special target flags settings may
881 in turn cause preprocessor symbols to be defined specially. */
882 static const char *cpp_options
=
883 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
884 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
885 %{undef} %{save-temps*:-fpch-preprocess}";
887 /* This contains cpp options which are not passed when the preprocessor
888 output will be used by another program. */
889 static const char *cpp_debug_options
= "%{d*}";
891 /* NB: This is shared amongst all front-ends, except for Ada. */
892 static const char *cc1_options
=
893 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
894 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
895 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
896 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
897 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
898 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
899 %{Qn:-fno-ident} %{--help:--help}\
900 %{--target-help:--target-help}\
901 %{--help=*:--help=%(VALUE)}\
902 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
903 %{fsyntax-only:-o %j} %{-param*}\
904 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
905 %{coverage:-fprofile-arcs -ftest-coverage}";
907 static const char *asm_options
=
908 "%{--target-help:%:print-asm-header()} "
910 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
911 to the assembler equivalents. */
912 "%{v} %{w:-W} %{I*} "
914 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
916 static const char *invoke_as
=
917 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
919 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
920 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
924 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
925 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
929 /* Some compilers have limits on line lengths, and the multilib_select
930 and/or multilib_matches strings can be very long, so we build them at
932 static struct obstack multilib_obstack
;
933 static const char *multilib_select
;
934 static const char *multilib_matches
;
935 static const char *multilib_defaults
;
936 static const char *multilib_exclusions
;
938 /* Check whether a particular argument is a default argument. */
940 #ifndef MULTILIB_DEFAULTS
941 #define MULTILIB_DEFAULTS { "" }
944 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
946 #ifndef DRIVER_SELF_SPECS
947 #define DRIVER_SELF_SPECS ""
950 /* Adding -fopenmp should imply pthreads. This is particularly important
951 for targets that use different start files and suchlike. */
952 #ifndef GOMP_SELF_SPECS
953 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
956 static const char *const driver_self_specs
[] = {
957 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
958 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
961 #ifndef OPTION_DEFAULT_SPECS
962 #define OPTION_DEFAULT_SPECS { "", "" }
971 static const struct default_spec
972 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
976 struct user_specs
*next
;
977 const char *filename
;
980 static struct user_specs
*user_specs_head
, *user_specs_tail
;
982 #ifndef SWITCH_TAKES_ARG
983 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
986 #ifndef WORD_SWITCH_TAKES_ARG
987 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
990 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
991 /* This defines which switches stop a full compilation. */
992 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
993 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
995 #ifndef SWITCH_CURTAILS_COMPILATION
996 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
997 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
1001 /* Record the mapping from file suffixes for compilation specs. */
1005 const char *suffix
; /* Use this compiler for input files
1006 whose names end in this suffix. */
1008 const char *spec
; /* To use this compiler, run this spec. */
1010 const char *cpp_spec
; /* If non-NULL, substitute this spec
1011 for `%C', rather than the usual
1013 const int combinable
; /* If nonzero, compiler can deal with
1014 multiple source files at once (IMA). */
1015 const int needs_preprocessing
; /* If nonzero, source files need to
1016 be run through a preprocessor. */
1019 /* Pointer to a vector of `struct compiler' that gives the spec for
1020 compiling a file, based on its suffix.
1021 A file that does not end in any of these suffixes will be passed
1022 unchanged to the loader and nothing else will be done to it.
1024 An entry containing two 0s is used to terminate the vector.
1026 If multiple entries match a file, the last matching one is used. */
1028 static struct compiler
*compilers
;
1030 /* Number of entries in `compilers', not counting the null terminator. */
1032 static int n_compilers
;
1034 /* The default list of file name suffixes and their compilation specs. */
1036 static const struct compiler default_compilers
[] =
1038 /* Add lists of suffixes of known languages here. If those languages
1039 were not present when we built the driver, we will hit these copies
1040 and be given a more meaningful error than "file not used since
1041 linking is not done". */
1042 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1043 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1044 {".mii", "#Objective-C++", 0, 0, 0},
1045 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1046 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1047 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1048 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1049 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1050 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1051 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1052 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1053 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1054 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1055 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1056 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1057 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1058 {".r", "#Ratfor", 0, 0, 0},
1059 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1060 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1061 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1062 /* Next come the entries for C. */
1063 {".c", "@c", 0, 1, 1},
1065 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1066 external preprocessor if -save-temps is given. */
1067 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1069 %{traditional|ftraditional:\
1070 %eGNU C no longer supports -traditional without -E}\
1072 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1073 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1074 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1076 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1077 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1078 %{!fsyntax-only:%(invoke_as)}} \
1080 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1081 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1082 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1083 cc1 %(cpp_unique_options) %(cc1_options)}}\
1084 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1086 "%{!E:%e-E or -x required when input is from standard input}\
1087 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1088 {".h", "@c-header", 0, 0, 0},
1090 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1091 external preprocessor if -save-temps is given. */
1092 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1094 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1095 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1096 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1098 -o %g.s %{!o*:--output-pch=%i.gch}\
1099 %W{o*:--output-pch=%*}%V}\
1100 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1101 cc1 %(cpp_unique_options) %(cc1_options)\
1102 -o %g.s %{!o*:--output-pch=%i.gch}\
1103 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1104 {".i", "@cpp-output", 0, 1, 0},
1106 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1107 {".s", "@assembler", 0, 1, 0},
1109 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1110 {".sx", "@assembler-with-cpp", 0, 1, 0},
1111 {".S", "@assembler-with-cpp", 0, 1, 0},
1112 {"@assembler-with-cpp",
1113 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1114 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1115 %{E|M|MM:%(cpp_debug_options)}\
1116 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1117 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1119 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1120 %{E|M|MM:%(cpp_debug_options)}\
1121 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1122 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1127 /* Mark end of table. */
1131 /* Number of elements in default_compilers, not counting the terminator. */
1133 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1135 /* A vector of options to give to the linker.
1136 These options are accumulated by %x,
1137 and substituted into the linker command with %X. */
1138 static int n_linker_options
;
1139 static char **linker_options
;
1141 /* A vector of options to give to the assembler.
1142 These options are accumulated by -Wa,
1143 and substituted into the assembler command with %Y. */
1144 static int n_assembler_options
;
1145 static char **assembler_options
;
1147 /* A vector of options to give to the preprocessor.
1148 These options are accumulated by -Wp,
1149 and substituted into the preprocessor command with %Z. */
1150 static int n_preprocessor_options
;
1151 static char **preprocessor_options
;
1153 /* Define how to map long options into short ones. */
1155 /* This structure describes one mapping. */
1158 /* The long option's name. */
1159 const char *const name
;
1160 /* The equivalent short option. */
1161 const char *const equivalent
;
1162 /* Argument info. A string of flag chars; NULL equals no options.
1163 a => argument required.
1164 o => argument optional.
1165 j => join argument to equivalent, making one word.
1166 * => require other text after NAME as an argument. */
1167 const char *const arg_info
;
1170 /* This is the table of mappings. Mappings are tried sequentially
1171 for each option encountered; the first one that matches, wins. */
1173 static const struct option_map option_map
[] =
1175 {"--all-warnings", "-Wall", 0},
1176 {"--ansi", "-ansi", 0},
1177 {"--assemble", "-S", 0},
1178 {"--assert", "-A", "a"},
1179 {"--classpath", "-fclasspath=", "aj"},
1180 {"--bootclasspath", "-fbootclasspath=", "aj"},
1181 {"--CLASSPATH", "-fclasspath=", "aj"},
1182 {"--combine", "-combine", 0},
1183 {"--comments", "-C", 0},
1184 {"--comments-in-macros", "-CC", 0},
1185 {"--compile", "-c", 0},
1186 {"--debug", "-g", "oj"},
1187 {"--define-macro", "-D", "aj"},
1188 {"--dependencies", "-M", 0},
1189 {"--dump", "-d", "a"},
1190 {"--dumpbase", "-dumpbase", "a"},
1191 {"--encoding", "-fencoding=", "aj"},
1192 {"--entry", "-e", 0},
1193 {"--extra-warnings", "-W", 0},
1194 {"--extdirs", "-fextdirs=", "aj"},
1195 {"--for-assembler", "-Wa", "a"},
1196 {"--for-linker", "-Xlinker", "a"},
1197 {"--force-link", "-u", "a"},
1198 {"--coverage", "-coverage", 0},
1199 {"--imacros", "-imacros", "a"},
1200 {"--include", "-include", "a"},
1201 {"--include-barrier", "-I-", 0},
1202 {"--include-directory", "-I", "aj"},
1203 {"--include-directory-after", "-idirafter", "a"},
1204 {"--include-prefix", "-iprefix", "a"},
1205 {"--include-with-prefix", "-iwithprefix", "a"},
1206 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1207 {"--include-with-prefix-after", "-iwithprefix", "a"},
1208 {"--language", "-x", "a"},
1209 {"--library-directory", "-L", "a"},
1210 {"--machine", "-m", "aj"},
1211 {"--machine-", "-m", "*j"},
1212 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1213 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1214 {"--no-line-commands", "-P", 0},
1215 {"--no-precompiled-includes", "-noprecomp", 0},
1216 {"--no-standard-includes", "-nostdinc", 0},
1217 {"--no-standard-libraries", "-nostdlib", 0},
1218 {"--no-warnings", "-w", 0},
1219 {"--optimize", "-O", "oj"},
1220 {"--output", "-o", "a"},
1221 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1222 {"--param", "--param", "a"},
1223 {"--pass-exit-codes", "-pass-exit-codes", 0},
1224 {"--pedantic", "-pedantic", 0},
1225 {"--pedantic-errors", "-pedantic-errors", 0},
1226 {"--pie", "-pie", 0},
1227 {"--pipe", "-pipe", 0},
1228 {"--prefix", "-B", "a"},
1229 {"--preprocess", "-E", 0},
1230 {"--print-search-dirs", "-print-search-dirs", 0},
1231 {"--print-file-name", "-print-file-name=", "aj"},
1232 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1233 {"--print-missing-file-dependencies", "-MG", 0},
1234 {"--print-multi-lib", "-print-multi-lib", 0},
1235 {"--print-multi-directory", "-print-multi-directory", 0},
1236 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1237 {"--print-prog-name", "-print-prog-name=", "aj"},
1238 {"--print-sysroot", "-print-sysroot", 0},
1239 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1240 {"--profile", "-p", 0},
1241 {"--profile-blocks", "-a", 0},
1242 {"--quiet", "-q", 0},
1243 {"--resource", "-fcompile-resource=", "aj"},
1244 {"--save-temps", "-save-temps", 0},
1245 {"--shared", "-shared", 0},
1246 {"--silent", "-q", 0},
1247 {"--specs", "-specs=", "aj"},
1248 {"--static", "-static", 0},
1249 {"--std", "-std=", "aj"},
1250 {"--symbolic", "-symbolic", 0},
1251 {"--sysroot", "--sysroot=", "aj"},
1252 {"--time", "-time", 0},
1253 {"--trace-includes", "-H", 0},
1254 {"--traditional", "-traditional", 0},
1255 {"--traditional-cpp", "-traditional-cpp", 0},
1256 {"--trigraphs", "-trigraphs", 0},
1257 {"--undefine-macro", "-U", "aj"},
1258 {"--user-dependencies", "-MM", 0},
1259 {"--verbose", "-v", 0},
1260 {"--warn-", "-W", "*j"},
1261 {"--write-dependencies", "-MD", 0},
1262 {"--write-user-dependencies", "-MMD", 0},
1267 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1268 static const struct {
1269 const char *const option_found
;
1270 const char *const replacements
;
1271 } target_option_translations
[] =
1273 TARGET_OPTION_TRANSLATE_TABLE
,
1278 /* Translate the options described by *ARGCP and *ARGVP.
1279 Make a new vector and store it back in *ARGVP,
1280 and store its length in *ARGCP. */
1283 translate_options (int *argcp
, const char *const **argvp
)
1287 const char *const *argv
= *argvp
;
1288 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1289 const char **newv
= XNEWVAR (const char *, newvsize
);
1293 newv
[newindex
++] = argv
[i
++];
1297 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1301 target_option_translations
[tott_idx
].option_found
;
1304 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1311 for (sp
= target_option_translations
[tott_idx
].replacements
;
1318 newvsize
+= spaces
* sizeof (const char *);
1319 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1321 sp
= target_option_translations
[tott_idx
].replacements
;
1330 newv
[newindex
++] = np
;
1331 while (*np
!= ' ' && *np
)
1342 if (target_option_translations
[tott_idx
].option_found
)
1346 /* Translate -- options. */
1347 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1350 /* Find a mapping that applies to this option. */
1351 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1353 size_t optlen
= strlen (option_map
[j
].name
);
1354 size_t arglen
= strlen (argv
[i
]);
1355 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1356 const char *arginfo
= option_map
[j
].arg_info
;
1361 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1363 const char *arg
= 0;
1365 if (arglen
< optlen
)
1368 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1369 if (strlen (option_map
[k
].name
) >= arglen
1370 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1372 error ("ambiguous abbreviation %s", argv
[i
]);
1376 if (k
!= ARRAY_SIZE (option_map
))
1380 if (arglen
> optlen
)
1382 /* If the option has an argument, accept that. */
1383 if (argv
[i
][optlen
] == '=')
1384 arg
= argv
[i
] + optlen
+ 1;
1386 /* If this mapping requires extra text at end of name,
1387 accept that as "argument". */
1388 else if (strchr (arginfo
, '*') != 0)
1389 arg
= argv
[i
] + optlen
;
1391 /* Otherwise, extra text at end means mismatch.
1392 Try other mappings. */
1397 else if (strchr (arginfo
, '*') != 0)
1399 error ("incomplete '%s' option", option_map
[j
].name
);
1403 /* Handle arguments. */
1404 if (strchr (arginfo
, 'a') != 0)
1410 error ("missing argument to '%s' option",
1411 option_map
[j
].name
);
1418 else if (strchr (arginfo
, '*') != 0)
1420 else if (strchr (arginfo
, 'o') == 0)
1423 error ("extraneous argument to '%s' option",
1424 option_map
[j
].name
);
1428 /* Store the translation as one argv elt or as two. */
1429 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1430 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1434 newv
[newindex
++] = option_map
[j
].equivalent
;
1435 newv
[newindex
++] = arg
;
1438 newv
[newindex
++] = option_map
[j
].equivalent
;
1446 /* Handle old-fashioned options--just copy them through,
1447 with their arguments. */
1448 else if (argv
[i
][0] == '-')
1450 const char *p
= argv
[i
] + 1;
1454 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1455 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1456 else if (WORD_SWITCH_TAKES_ARG (p
))
1457 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1458 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1461 else if (! strcmp (p
, "Xlinker"))
1463 else if (! strcmp (p
, "Xpreprocessor"))
1465 else if (! strcmp (p
, "Xassembler"))
1468 /* Watch out for an option at the end of the command line that
1469 is missing arguments, and avoid skipping past the end of the
1471 if (nskip
+ i
> argc
)
1476 newv
[newindex
++] = argv
[i
++];
1481 /* Ordinary operands, or +e options. */
1482 newv
[newindex
++] = argv
[i
++];
1492 skip_whitespace (char *p
)
1496 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1497 be considered whitespace. */
1498 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1500 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1514 /* Structures to keep track of prefixes to try when looking for files. */
1518 const char *prefix
; /* String to prepend to the path. */
1519 struct prefix_list
*next
; /* Next in linked list. */
1520 int require_machine_suffix
; /* Don't use without machine_suffix. */
1521 /* 2 means try both machine_suffix and just_machine_suffix. */
1522 int priority
; /* Sort key - priority within list. */
1523 int os_multilib
; /* 1 if OS multilib scheme should be used,
1524 0 for GCC multilib scheme. */
1529 struct prefix_list
*plist
; /* List of prefixes to try */
1530 int max_len
; /* Max length of a prefix in PLIST */
1531 const char *name
; /* Name of this list (used in config stuff) */
1534 /* List of prefixes to try when looking for executables. */
1536 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1538 /* List of prefixes to try when looking for startup (crt0) files. */
1540 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1542 /* List of prefixes to try when looking for include files. */
1544 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1546 /* Suffix to attach to directories searched for commands.
1547 This looks like `MACHINE/VERSION/'. */
1549 static const char *machine_suffix
= 0;
1551 /* Suffix to attach to directories searched for commands.
1552 This is just `MACHINE/'. */
1554 static const char *just_machine_suffix
= 0;
1556 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1558 static const char *gcc_exec_prefix
;
1560 /* Adjusted value of standard_libexec_prefix. */
1562 static const char *gcc_libexec_prefix
;
1564 /* Default prefixes to attach to command names. */
1566 #ifndef STANDARD_STARTFILE_PREFIX_1
1567 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1569 #ifndef STANDARD_STARTFILE_PREFIX_2
1570 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1573 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1574 #undef MD_EXEC_PREFIX
1575 #undef MD_STARTFILE_PREFIX
1576 #undef MD_STARTFILE_PREFIX_1
1579 /* If no prefixes defined, use the null string, which will disable them. */
1580 #ifndef MD_EXEC_PREFIX
1581 #define MD_EXEC_PREFIX ""
1583 #ifndef MD_STARTFILE_PREFIX
1584 #define MD_STARTFILE_PREFIX ""
1586 #ifndef MD_STARTFILE_PREFIX_1
1587 #define MD_STARTFILE_PREFIX_1 ""
1590 /* These directories are locations set at configure-time based on the
1591 --prefix option provided to configure. Their initializers are
1592 defined in Makefile.in. These paths are not *directly* used when
1593 gcc_exec_prefix is set because, in that case, we know where the
1594 compiler has been installed, and use paths relative to that
1595 location instead. */
1596 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1597 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1598 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1599 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1601 /* For native compilers, these are well-known paths containing
1602 components that may be provided by the system. For cross
1603 compilers, these paths are not used. */
1604 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1605 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1606 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1607 static const char *const standard_startfile_prefix_1
1608 = STANDARD_STARTFILE_PREFIX_1
;
1609 static const char *const standard_startfile_prefix_2
1610 = STANDARD_STARTFILE_PREFIX_2
;
1612 /* A relative path to be used in finding the location of tools
1613 relative to the driver. */
1614 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1616 /* Subdirectory to use for locating libraries. Set by
1617 set_multilib_dir based on the compilation options. */
1619 static const char *multilib_dir
;
1621 /* Subdirectory to use for locating libraries in OS conventions. Set by
1622 set_multilib_dir based on the compilation options. */
1624 static const char *multilib_os_dir
;
1626 /* Structure to keep track of the specs that have been defined so far.
1627 These are accessed using %(specname) or %[specname] in a compiler
1632 /* The following 2 fields must be first */
1633 /* to allow EXTRA_SPECS to be initialized */
1634 const char *name
; /* name of the spec. */
1635 const char *ptr
; /* available ptr if no static pointer */
1637 /* The following fields are not initialized */
1638 /* by EXTRA_SPECS */
1639 const char **ptr_spec
; /* pointer to the spec itself. */
1640 struct spec_list
*next
; /* Next spec in linked list. */
1641 int name_len
; /* length of the name */
1642 int alloc_p
; /* whether string was allocated */
1645 #define INIT_STATIC_SPEC(NAME,PTR) \
1646 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1648 /* List of statically defined specs. */
1649 static struct spec_list static_specs
[] =
1651 INIT_STATIC_SPEC ("asm", &asm_spec
),
1652 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1653 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1654 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1655 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1656 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1657 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1658 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1659 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1660 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1661 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1662 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1663 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1664 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1665 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1666 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1667 INIT_STATIC_SPEC ("link", &link_spec
),
1668 INIT_STATIC_SPEC ("lib", &lib_spec
),
1669 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1670 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1671 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1672 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1673 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1674 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1675 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1676 INIT_STATIC_SPEC ("version", &compiler_version
),
1677 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1678 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1679 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1680 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1681 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1682 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1683 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1684 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1685 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1686 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1687 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1688 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1689 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1690 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1691 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1692 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1693 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1694 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1695 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1698 #ifdef EXTRA_SPECS /* additional specs needed */
1699 /* Structure to keep track of just the first two args of a spec_list.
1700 That is all that the EXTRA_SPECS macro gives us. */
1703 const char *const name
;
1704 const char *const ptr
;
1707 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1708 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1711 /* List of dynamically allocates specs that have been defined so far. */
1713 static struct spec_list
*specs
= (struct spec_list
*) 0;
1715 /* List of static spec functions. */
1717 static const struct spec_function static_spec_functions
[] =
1719 { "getenv", getenv_spec_function
},
1720 { "if-exists", if_exists_spec_function
},
1721 { "if-exists-else", if_exists_else_spec_function
},
1722 { "replace-outfile", replace_outfile_spec_function
},
1723 { "version-compare", version_compare_spec_function
},
1724 { "include", include_spec_function
},
1725 { "print-asm-header", print_asm_header_spec_function
},
1726 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1727 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1728 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1729 #ifdef EXTRA_SPEC_FUNCTIONS
1730 EXTRA_SPEC_FUNCTIONS
1735 static int processing_spec_function
;
1737 /* Add appropriate libgcc specs to OBSTACK, taking into account
1738 various permutations of -shared-libgcc, -shared, and such. */
1740 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1742 #ifndef USE_LD_AS_NEEDED
1743 #define USE_LD_AS_NEEDED 0
1747 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1748 const char *static_name
, const char *eh_name
)
1752 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1753 "%{!static:%{!static-libgcc:"
1754 #if USE_LD_AS_NEEDED
1755 "%{!shared-libgcc:",
1756 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1759 shared_name
, "%{!shared: ", static_name
, "}"
1763 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1764 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1768 "%{shared-libgcc:", shared_name
, "}"
1769 "%{!shared-libgcc:", static_name
, "}"
1772 "%{shared:", shared_name
, "}"
1777 obstack_grow (obstack
, buf
, strlen (buf
));
1780 #endif /* ENABLE_SHARED_LIBGCC */
1782 /* Initialize the specs lookup routines. */
1787 struct spec_list
*next
= (struct spec_list
*) 0;
1788 struct spec_list
*sl
= (struct spec_list
*) 0;
1792 return; /* Already initialized. */
1795 notice ("Using built-in specs.\n");
1798 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1800 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1802 sl
= &extra_specs
[i
];
1803 sl
->name
= extra_specs_1
[i
].name
;
1804 sl
->ptr
= extra_specs_1
[i
].ptr
;
1806 sl
->name_len
= strlen (sl
->name
);
1807 sl
->ptr_spec
= &sl
->ptr
;
1812 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1814 sl
= &static_specs
[i
];
1819 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1820 /* ??? If neither -shared-libgcc nor --static-libgcc was
1821 seen, then we should be making an educated guess. Some proposed
1822 heuristics for ELF include:
1824 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1825 program will be doing dynamic loading, which will likely
1826 need the shared libgcc.
1828 (2) If "-ldl", then it's also a fair bet that we're doing
1831 (3) For each ET_DYN we're linking against (either through -lfoo
1832 or /some/path/foo.so), check to see whether it or one of
1833 its dependencies depends on a shared libgcc.
1837 If the runtime is fixed to look for program headers instead
1838 of calling __register_frame_info at all, for each object,
1839 use the shared libgcc if any EH symbol referenced.
1841 If crtstuff is fixed to not invoke __register_frame_info
1842 automatically, for each object, use the shared libgcc if
1843 any non-empty unwind section found.
1845 Doing any of this probably requires invoking an external program to
1846 do the actual object file scanning. */
1848 const char *p
= libgcc_spec
;
1851 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1852 when given the proper command line arguments. */
1855 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1857 init_gcc_specs (&obstack
,
1859 #ifdef USE_LIBUNWIND_EXCEPTIONS
1865 #ifdef USE_LIBUNWIND_EXCEPTIONS
1866 # ifdef HAVE_LD_STATIC_DYNAMIC
1867 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1877 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1879 /* Ug. We don't know shared library extensions. Hope that
1880 systems that use this form don't do shared libraries. */
1881 init_gcc_specs (&obstack
,
1885 #ifdef USE_LIBUNWIND_EXCEPTIONS
1894 obstack_1grow (&obstack
, *p
);
1895 in_sep
= (*p
== ' ');
1900 obstack_1grow (&obstack
, '\0');
1901 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1904 #ifdef USE_AS_TRADITIONAL_FORMAT
1905 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1907 static const char tf
[] = "--traditional-format ";
1908 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1909 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1910 asm_spec
= XOBFINISH (&obstack
, const char *);
1914 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1915 # ifdef LINK_BUILDID_SPEC
1916 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1917 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1919 # ifdef LINK_EH_SPEC
1920 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1921 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1923 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1924 link_spec
= XOBFINISH (&obstack
, const char *);
1930 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1931 removed; If the spec starts with a + then SPEC is added to the end of the
1935 set_spec (const char *name
, const char *spec
)
1937 struct spec_list
*sl
;
1938 const char *old_spec
;
1939 int name_len
= strlen (name
);
1942 /* If this is the first call, initialize the statically allocated specs. */
1945 struct spec_list
*next
= (struct spec_list
*) 0;
1946 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1948 sl
= &static_specs
[i
];
1955 /* See if the spec already exists. */
1956 for (sl
= specs
; sl
; sl
= sl
->next
)
1957 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1962 /* Not found - make it. */
1963 sl
= XNEW (struct spec_list
);
1964 sl
->name
= xstrdup (name
);
1965 sl
->name_len
= name_len
;
1966 sl
->ptr_spec
= &sl
->ptr
;
1968 *(sl
->ptr_spec
) = "";
1973 old_spec
= *(sl
->ptr_spec
);
1974 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1975 ? concat (old_spec
, spec
+ 1, NULL
)
1980 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1983 /* Free the old spec. */
1984 if (old_spec
&& sl
->alloc_p
)
1985 free (CONST_CAST(char *, old_spec
));
1990 /* Accumulate a command (program name and args), and run it. */
1992 /* Vector of pointers to arguments in the current line of specifications. */
1994 static const char **argbuf
;
1996 /* Number of elements allocated in argbuf. */
1998 static int argbuf_length
;
2000 /* Number of elements in argbuf currently in use (containing args). */
2002 static int argbuf_index
;
2004 /* Position in the argbuf array containing the name of the output file
2005 (the value associated with the "-o" flag). */
2007 static int have_o_argbuf_index
= 0;
2009 /* Were the options -c, -S or -E passed. */
2010 static int have_c
= 0;
2012 /* Was the option -o passed. */
2013 static int have_o
= 0;
2015 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2016 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2019 static struct temp_name
{
2020 const char *suffix
; /* suffix associated with the code. */
2021 int length
; /* strlen (suffix). */
2022 int unique
; /* Indicates whether %g or %u/%U was used. */
2023 const char *filename
; /* associated filename. */
2024 int filename_length
; /* strlen (filename). */
2025 struct temp_name
*next
;
2028 /* Number of commands executed so far. */
2030 static int execution_count
;
2032 /* Number of commands that exited with a signal. */
2034 static int signal_count
;
2036 /* Name with which this program was invoked. */
2038 static const char *programname
;
2040 /* Allocate the argument vector. */
2046 argbuf
= XNEWVEC (const char *, argbuf_length
);
2049 /* Clear out the vector of arguments (after a command is executed). */
2057 /* Add one argument to the vector at the end.
2058 This is done when a space is seen or at the end of the line.
2059 If DELETE_ALWAYS is nonzero, the arg is a filename
2060 and the file should be deleted eventually.
2061 If DELETE_FAILURE is nonzero, the arg is a filename
2062 and the file should be deleted if this compilation fails. */
2065 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2067 if (argbuf_index
+ 1 == argbuf_length
)
2068 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
2070 argbuf
[argbuf_index
++] = arg
;
2071 argbuf
[argbuf_index
] = 0;
2073 if (strcmp (arg
, "-o") == 0)
2074 have_o_argbuf_index
= argbuf_index
;
2075 if (delete_always
|| delete_failure
)
2076 record_temp_file (arg
, delete_always
, delete_failure
);
2079 /* Load specs from a file name named FILENAME, replacing occurrences of
2080 various different types of line-endings, \r\n, \n\r and just \r, with
2084 load_specs (const char *filename
)
2088 struct stat statbuf
;
2095 notice ("Reading specs from %s\n", filename
);
2097 /* Open and stat the file. */
2098 desc
= open (filename
, O_RDONLY
, 0);
2100 pfatal_with_name (filename
);
2101 if (stat (filename
, &statbuf
) < 0)
2102 pfatal_with_name (filename
);
2104 /* Read contents of file into BUFFER. */
2105 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2106 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2108 pfatal_with_name (filename
);
2109 buffer
[readlen
] = 0;
2112 specs
= XNEWVEC (char, readlen
+ 1);
2114 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2120 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2122 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2136 /* Read compilation specs from a file named FILENAME,
2137 replacing the default ones.
2139 A suffix which starts with `*' is a definition for
2140 one of the machine-specific sub-specs. The "suffix" should be
2141 *asm, *cc1, *cpp, *link, *startfile, etc.
2142 The corresponding spec is stored in asm_spec, etc.,
2143 rather than in the `compilers' vector.
2145 Anything invalid in the file is a fatal error. */
2148 read_specs (const char *filename
, int main_p
)
2153 buffer
= load_specs (filename
);
2155 /* Scan BUFFER for specs, putting them in the vector. */
2161 char *in
, *out
, *p1
, *p2
, *p3
;
2163 /* Advance P in BUFFER to the next nonblank nocomment line. */
2164 p
= skip_whitespace (p
);
2168 /* Is this a special command that starts with '%'? */
2169 /* Don't allow this for the main specs file, since it would
2170 encourage people to overwrite it. */
2171 if (*p
== '%' && !main_p
)
2174 while (*p
&& *p
!= '\n')
2180 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2181 && (p1
[sizeof "%include" - 1] == ' '
2182 || p1
[sizeof "%include" - 1] == '\t'))
2186 p1
+= sizeof ("%include");
2187 while (*p1
== ' ' || *p1
== '\t')
2190 if (*p1
++ != '<' || p
[-2] != '>')
2191 fatal ("specs %%include syntax malformed after %ld characters",
2192 (long) (p1
- buffer
+ 1));
2195 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2196 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2199 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2200 && (p1
[sizeof "%include_noerr" - 1] == ' '
2201 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2205 p1
+= sizeof "%include_noerr";
2206 while (*p1
== ' ' || *p1
== '\t')
2209 if (*p1
++ != '<' || p
[-2] != '>')
2210 fatal ("specs %%include syntax malformed after %ld characters",
2211 (long) (p1
- buffer
+ 1));
2214 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2216 read_specs (new_filename
, FALSE
);
2217 else if (verbose_flag
)
2218 notice ("could not find specs file %s\n", p1
);
2221 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2222 && (p1
[sizeof "%rename" - 1] == ' '
2223 || p1
[sizeof "%rename" - 1] == '\t'))
2226 struct spec_list
*sl
;
2227 struct spec_list
*newsl
;
2229 /* Get original name. */
2230 p1
+= sizeof "%rename";
2231 while (*p1
== ' ' || *p1
== '\t')
2234 if (! ISALPHA ((unsigned char) *p1
))
2235 fatal ("specs %%rename syntax malformed after %ld characters",
2236 (long) (p1
- buffer
));
2239 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2242 if (*p2
!= ' ' && *p2
!= '\t')
2243 fatal ("specs %%rename syntax malformed after %ld characters",
2244 (long) (p2
- buffer
));
2248 while (*p2
== ' ' || *p2
== '\t')
2251 if (! ISALPHA ((unsigned char) *p2
))
2252 fatal ("specs %%rename syntax malformed after %ld characters",
2253 (long) (p2
- buffer
));
2255 /* Get new spec name. */
2257 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2261 fatal ("specs %%rename syntax malformed after %ld characters",
2262 (long) (p3
- buffer
));
2265 for (sl
= specs
; sl
; sl
= sl
->next
)
2266 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2270 fatal ("specs %s spec was not found to be renamed", p1
);
2272 if (strcmp (p1
, p2
) == 0)
2275 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2276 if (strcmp (newsl
->name
, p2
) == 0)
2277 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2282 notice ("rename spec %s to %s\n", p1
, p2
);
2284 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2288 set_spec (p2
, *(sl
->ptr_spec
));
2290 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2292 *(sl
->ptr_spec
) = "";
2297 fatal ("specs unknown %% command after %ld characters",
2298 (long) (p1
- buffer
));
2301 /* Find the colon that should end the suffix. */
2303 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2306 /* The colon shouldn't be missing. */
2308 fatal ("specs file malformed after %ld characters",
2309 (long) (p1
- buffer
));
2311 /* Skip back over trailing whitespace. */
2313 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2316 /* Copy the suffix to a string. */
2317 suffix
= save_string (p
, p2
- p
);
2318 /* Find the next line. */
2319 p
= skip_whitespace (p1
+ 1);
2321 fatal ("specs file malformed after %ld characters",
2322 (long) (p
- buffer
));
2325 /* Find next blank line or end of string. */
2326 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2329 /* Specs end at the blank line and do not include the newline. */
2330 spec
= save_string (p
, p1
- p
);
2333 /* Delete backslash-newline sequences from the spec. */
2338 if (in
[0] == '\\' && in
[1] == '\n')
2340 else if (in
[0] == '#')
2341 while (*in
&& *in
!= '\n')
2349 if (suffix
[0] == '*')
2351 if (! strcmp (suffix
, "*link_command"))
2352 link_command_spec
= spec
;
2354 set_spec (suffix
+ 1, spec
);
2358 /* Add this pair to the vector. */
2360 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2362 compilers
[n_compilers
].suffix
= suffix
;
2363 compilers
[n_compilers
].spec
= spec
;
2365 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2369 link_command_spec
= spec
;
2372 if (link_command_spec
== 0)
2373 fatal ("spec file has no spec for linking");
2376 /* Record the names of temporary files we tell compilers to write,
2377 and delete them at the end of the run. */
2379 /* This is the common prefix we use to make temp file names.
2380 It is chosen once for each run of this program.
2381 It is substituted into a spec by %g or %j.
2382 Thus, all temp file names contain this prefix.
2383 In practice, all temp file names start with this prefix.
2385 This prefix comes from the envvar TMPDIR if it is defined;
2386 otherwise, from the P_tmpdir macro if that is defined;
2387 otherwise, in /usr/tmp or /tmp;
2388 or finally the current directory if all else fails. */
2390 static const char *temp_filename
;
2392 /* Length of the prefix. */
2394 static int temp_filename_length
;
2396 /* Define the list of temporary files to delete. */
2401 struct temp_file
*next
;
2404 /* Queue of files to delete on success or failure of compilation. */
2405 static struct temp_file
*always_delete_queue
;
2406 /* Queue of files to delete on failure of compilation. */
2407 static struct temp_file
*failure_delete_queue
;
2409 /* Record FILENAME as a file to be deleted automatically.
2410 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2411 otherwise delete it in any case.
2412 FAIL_DELETE nonzero means delete it if a compilation step fails;
2413 otherwise delete it in any case. */
2416 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2418 char *const name
= xstrdup (filename
);
2422 struct temp_file
*temp
;
2423 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2424 if (! strcmp (name
, temp
->name
))
2427 temp
= XNEW (struct temp_file
);
2428 temp
->next
= always_delete_queue
;
2430 always_delete_queue
= temp
;
2437 struct temp_file
*temp
;
2438 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2439 if (! strcmp (name
, temp
->name
))
2442 temp
= XNEW (struct temp_file
);
2443 temp
->next
= failure_delete_queue
;
2445 failure_delete_queue
= temp
;
2451 /* Delete all the temporary files whose names we previously recorded. */
2453 #ifndef DELETE_IF_ORDINARY
2454 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2457 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2458 if (unlink (NAME) < 0) \
2460 perror_with_name (NAME); \
2465 delete_if_ordinary (const char *name
)
2471 printf ("Delete %s? (y or n) ", name
);
2475 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2478 if (i
== 'y' || i
== 'Y')
2480 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2484 delete_temp_files (void)
2486 struct temp_file
*temp
;
2488 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2489 delete_if_ordinary (temp
->name
);
2490 always_delete_queue
= 0;
2493 /* Delete all the files to be deleted on error. */
2496 delete_failure_queue (void)
2498 struct temp_file
*temp
;
2500 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2501 delete_if_ordinary (temp
->name
);
2505 clear_failure_queue (void)
2507 failure_delete_queue
= 0;
2510 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2512 If DO_MULTI is true iterate over the paths twice, first with multilib
2513 suffix then without, otherwise iterate over the paths once without
2514 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2515 to avoid visiting the same path twice, but we could do better. For
2516 instance, /usr/lib/../lib is considered different from /usr/lib.
2517 At least EXTRA_SPACE chars past the end of the path passed to
2518 CALLBACK are available for use by the callback.
2519 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2521 Returns the value returned by CALLBACK. */
2524 for_each_path (const struct path_prefix
*paths
,
2527 void *(*callback
) (char *, void *),
2528 void *callback_info
)
2530 struct prefix_list
*pl
;
2531 const char *multi_dir
= NULL
;
2532 const char *multi_os_dir
= NULL
;
2533 const char *multi_suffix
;
2534 const char *just_multi_suffix
;
2537 bool skip_multi_dir
= false;
2538 bool skip_multi_os_dir
= false;
2540 multi_suffix
= machine_suffix
;
2541 just_multi_suffix
= just_machine_suffix
;
2542 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2544 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2545 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2546 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2548 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2549 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2553 size_t multi_dir_len
= 0;
2554 size_t multi_os_dir_len
= 0;
2556 size_t just_suffix_len
;
2560 multi_dir_len
= strlen (multi_dir
);
2562 multi_os_dir_len
= strlen (multi_os_dir
);
2563 suffix_len
= strlen (multi_suffix
);
2564 just_suffix_len
= strlen (just_multi_suffix
);
2568 len
= paths
->max_len
+ extra_space
+ 1;
2569 if (suffix_len
> multi_os_dir_len
)
2572 len
+= multi_os_dir_len
;
2573 path
= XNEWVEC (char, len
);
2576 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2578 len
= strlen (pl
->prefix
);
2579 memcpy (path
, pl
->prefix
, len
);
2581 /* Look first in MACHINE/VERSION subdirectory. */
2582 if (!skip_multi_dir
)
2584 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2585 ret
= callback (path
, callback_info
);
2590 /* Some paths are tried with just the machine (ie. target)
2591 subdir. This is used for finding as, ld, etc. */
2593 && pl
->require_machine_suffix
== 2)
2595 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2596 ret
= callback (path
, callback_info
);
2601 /* Now try the base path. */
2602 if (!pl
->require_machine_suffix
2603 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2605 const char *this_multi
;
2606 size_t this_multi_len
;
2608 if (pl
->os_multilib
)
2610 this_multi
= multi_os_dir
;
2611 this_multi_len
= multi_os_dir_len
;
2615 this_multi
= multi_dir
;
2616 this_multi_len
= multi_dir_len
;
2620 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2624 ret
= callback (path
, callback_info
);
2632 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2635 /* Run through the paths again, this time without multilibs.
2636 Don't repeat any we have already seen. */
2639 free (CONST_CAST (char *, multi_dir
));
2641 free (CONST_CAST (char *, multi_suffix
));
2642 multi_suffix
= machine_suffix
;
2643 free (CONST_CAST (char *, just_multi_suffix
));
2644 just_multi_suffix
= just_machine_suffix
;
2647 skip_multi_dir
= true;
2650 free (CONST_CAST (char *, multi_os_dir
));
2651 multi_os_dir
= NULL
;
2654 skip_multi_os_dir
= true;
2659 free (CONST_CAST (char *, multi_dir
));
2660 free (CONST_CAST (char *, multi_suffix
));
2661 free (CONST_CAST (char *, just_multi_suffix
));
2664 free (CONST_CAST (char *, multi_os_dir
));
2670 /* Callback for build_search_list. Adds path to obstack being built. */
2672 struct add_to_obstack_info
{
2679 add_to_obstack (char *path
, void *data
)
2681 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2683 if (info
->check_dir
&& !is_directory (path
, false))
2686 if (!info
->first_time
)
2687 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2689 obstack_grow (info
->ob
, path
, strlen (path
));
2691 info
->first_time
= false;
2695 /* Add or change the value of an environment variable, outputting the
2696 change to standard error if in verbose mode. */
2698 xputenv (const char *string
)
2701 notice ("%s\n", string
);
2702 putenv (CONST_CAST (char *, string
));
2705 /* Build a list of search directories from PATHS.
2706 PREFIX is a string to prepend to the list.
2707 If CHECK_DIR_P is true we ensure the directory exists.
2708 If DO_MULTI is true, multilib paths are output first, then
2710 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2711 It is also used by the --print-search-dirs flag. */
2714 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2715 bool check_dir
, bool do_multi
)
2717 struct add_to_obstack_info info
;
2719 info
.ob
= &collect_obstack
;
2720 info
.check_dir
= check_dir
;
2721 info
.first_time
= true;
2723 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2724 obstack_1grow (&collect_obstack
, '=');
2726 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2728 obstack_1grow (&collect_obstack
, '\0');
2729 return XOBFINISH (&collect_obstack
, char *);
2732 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2736 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2739 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2742 /* Check whether NAME can be accessed in MODE. This is like access,
2743 except that it never considers directories to be executable. */
2746 access_check (const char *name
, int mode
)
2752 if (stat (name
, &st
) < 0
2753 || S_ISDIR (st
.st_mode
))
2757 return access (name
, mode
);
2760 /* Callback for find_a_file. Appends the file name to the directory
2761 path. If the resulting file exists in the right mode, return the
2762 full pathname to the file. */
2764 struct file_at_path_info
{
2773 file_at_path (char *path
, void *data
)
2775 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2776 size_t len
= strlen (path
);
2778 memcpy (path
+ len
, info
->name
, info
->name_len
);
2779 len
+= info
->name_len
;
2781 /* Some systems have a suffix for executable files.
2782 So try appending that first. */
2783 if (info
->suffix_len
)
2785 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2786 if (access_check (path
, info
->mode
) == 0)
2791 if (access_check (path
, info
->mode
) == 0)
2797 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2798 access to check permissions. If DO_MULTI is true, search multilib
2799 paths then non-multilib paths, otherwise do not search multilib paths.
2800 Return 0 if not found, otherwise return its name, allocated with malloc. */
2803 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2806 struct file_at_path_info info
;
2808 #ifdef DEFAULT_ASSEMBLER
2809 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2810 return xstrdup (DEFAULT_ASSEMBLER
);
2813 #ifdef DEFAULT_LINKER
2814 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2815 return xstrdup (DEFAULT_LINKER
);
2818 /* Determine the filename to execute (special case for absolute paths). */
2820 if (IS_ABSOLUTE_PATH (name
))
2822 if (access (name
, mode
) == 0)
2823 return xstrdup (name
);
2829 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2830 info
.name_len
= strlen (info
.name
);
2831 info
.suffix_len
= strlen (info
.suffix
);
2834 return (char*) for_each_path (pprefix
, do_multi
,
2835 info
.name_len
+ info
.suffix_len
,
2836 file_at_path
, &info
);
2839 /* Ranking of prefixes in the sort list. -B prefixes are put before
2842 enum path_prefix_priority
2844 PREFIX_PRIORITY_B_OPT
,
2845 PREFIX_PRIORITY_LAST
2848 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2849 order according to PRIORITY. Within each PRIORITY, new entries are
2852 If WARN is nonzero, we will warn if no file is found
2853 through this prefix. WARN should point to an int
2854 which will be set to 1 if this entry is used.
2856 COMPONENT is the value to be passed to update_path.
2858 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2859 the complete value of machine_suffix.
2860 2 means try both machine_suffix and just_machine_suffix. */
2863 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2864 const char *component
, /* enum prefix_priority */ int priority
,
2865 int require_machine_suffix
, int os_multilib
)
2867 struct prefix_list
*pl
, **prev
;
2870 for (prev
= &pprefix
->plist
;
2871 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2872 prev
= &(*prev
)->next
)
2875 /* Keep track of the longest prefix. */
2877 prefix
= update_path (prefix
, component
);
2878 len
= strlen (prefix
);
2879 if (len
> pprefix
->max_len
)
2880 pprefix
->max_len
= len
;
2882 pl
= XNEW (struct prefix_list
);
2883 pl
->prefix
= prefix
;
2884 pl
->require_machine_suffix
= require_machine_suffix
;
2885 pl
->priority
= priority
;
2886 pl
->os_multilib
= os_multilib
;
2888 /* Insert after PREV. */
2893 /* Same as add_prefix, but prepending target_system_root to prefix. */
2894 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2896 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2897 const char *component
,
2898 /* enum prefix_priority */ int priority
,
2899 int require_machine_suffix
, int os_multilib
)
2901 if (!IS_ABSOLUTE_PATH (prefix
))
2902 fatal ("system path '%s' is not absolute", prefix
);
2904 if (target_system_root
)
2906 if (target_sysroot_suffix
)
2907 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2908 prefix
= concat (target_system_root
, prefix
, NULL
);
2910 /* We have to override this because GCC's notion of sysroot
2911 moves along with GCC. */
2915 add_prefix (pprefix
, prefix
, component
, priority
,
2916 require_machine_suffix
, os_multilib
);
2919 /* Execute the command specified by the arguments on the current line of spec.
2920 When using pipes, this includes several piped-together commands
2921 with `|' between them.
2923 Return 0 if successful, -1 if failed. */
2929 int n_commands
; /* # of command. */
2931 struct pex_obj
*pex
;
2934 const char *prog
; /* program name. */
2935 const char **argv
; /* vector of args. */
2938 struct command
*commands
; /* each command buffer with above info. */
2940 gcc_assert (!processing_spec_function
);
2944 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2945 argbuf
[0] = (string
) ? string
: argbuf
[0];
2946 insert_wrapper (wrapper_string
);
2949 /* Count # of piped commands. */
2950 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2951 if (strcmp (argbuf
[i
], "|") == 0)
2954 /* Get storage for each command. */
2955 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2957 /* Split argbuf into its separate piped processes,
2958 and record info about each one.
2959 Also search for the programs that are to be run. */
2961 commands
[0].prog
= argbuf
[0]; /* first command. */
2962 commands
[0].argv
= &argbuf
[0];
2964 if (!wrapper_string
)
2966 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2967 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2970 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2971 if (strcmp (argbuf
[i
], "|") == 0)
2972 { /* each command. */
2973 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2974 fatal ("-pipe not supported");
2976 argbuf
[i
] = 0; /* termination of command args. */
2977 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2978 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2979 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2982 commands
[n_commands
].argv
[0] = string
;
2986 argbuf
[argbuf_index
] = 0;
2988 /* If -v, print what we are about to do, and maybe query. */
2992 /* For help listings, put a blank line between sub-processes. */
2993 if (print_help_list
)
2994 fputc ('\n', stderr
);
2996 /* Print each piped command as a separate line. */
2997 for (i
= 0; i
< n_commands
; i
++)
2999 const char *const *j
;
3001 if (verbose_only_flag
)
3003 for (j
= commands
[i
].argv
; *j
; j
++)
3006 fprintf (stderr
, " \"");
3007 for (p
= *j
; *p
; ++p
)
3009 if (*p
== '"' || *p
== '\\' || *p
== '$')
3010 fputc ('\\', stderr
);
3013 fputc ('"', stderr
);
3017 for (j
= commands
[i
].argv
; *j
; j
++)
3018 fprintf (stderr
, " %s", *j
);
3020 /* Print a pipe symbol after all but the last command. */
3021 if (i
+ 1 != n_commands
)
3022 fprintf (stderr
, " |");
3023 fprintf (stderr
, "\n");
3026 if (verbose_only_flag
!= 0)
3028 /* verbose_only_flag should act as if the spec was
3029 executed, so increment execution_count before
3030 returning. This prevents spurious warnings about
3031 unused linker input files, etc. */
3036 notice ("\nGo ahead? (y or n) ");
3040 while (getchar () != '\n')
3043 if (i
!= 'y' && i
!= 'Y')
3048 #ifdef ENABLE_VALGRIND_CHECKING
3049 /* Run the each command through valgrind. To simplify prepending the
3050 path to valgrind and the option "-q" (for quiet operation unless
3051 something triggers), we allocate a separate argv array. */
3053 for (i
= 0; i
< n_commands
; i
++)
3059 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3062 argv
= XALLOCAVEC (const char *, argc
+ 3);
3064 argv
[0] = VALGRIND_PATH
;
3066 for (j
= 2; j
< argc
+ 2; j
++)
3067 argv
[j
] = commands
[i
].argv
[j
- 2];
3070 commands
[i
].argv
= argv
;
3071 commands
[i
].prog
= argv
[0];
3075 /* Run each piped subprocess. */
3077 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3078 ? PEX_RECORD_TIMES
: 0),
3079 programname
, temp_filename
);
3081 pfatal_with_name (_("pex_init failed"));
3083 for (i
= 0; i
< n_commands
; i
++)
3087 const char *string
= commands
[i
].argv
[0];
3089 errmsg
= pex_run (pex
,
3090 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3091 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3092 string
, CONST_CAST (char **, commands
[i
].argv
),
3101 pfatal_with_name (errmsg
);
3105 if (string
!= commands
[i
].prog
)
3106 free (CONST_CAST (char *, string
));
3111 /* Wait for all the subprocesses to finish. */
3115 struct pex_time
*times
= NULL
;
3118 statuses
= (int *) alloca (n_commands
* sizeof (int));
3119 if (!pex_get_status (pex
, n_commands
, statuses
))
3120 pfatal_with_name (_("failed to get exit status"));
3122 if (report_times
|| report_times_to_file
)
3124 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3125 if (!pex_get_times (pex
, n_commands
, times
))
3126 pfatal_with_name (_("failed to get process times"));
3131 for (i
= 0; i
< n_commands
; ++i
)
3133 int status
= statuses
[i
];
3135 if (WIFSIGNALED (status
))
3138 /* SIGPIPE is a special case. It happens in -pipe mode
3139 when the compiler dies before the preprocessor is done,
3140 or the assembler dies before the compiler is done.
3141 There's generally been an error already, and this is
3142 just fallout. So don't generate another error unless
3143 we would otherwise have succeeded. */
3144 if (WTERMSIG (status
) == SIGPIPE
3145 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3153 Internal error: %s (program %s)\n\
3154 Please submit a full bug report.\n\
3155 See %s for instructions.",
3156 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3159 else if (WIFEXITED (status
)
3160 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3162 if (WEXITSTATUS (status
) > greatest_status
)
3163 greatest_status
= WEXITSTATUS (status
);
3167 if (report_times
|| report_times_to_file
)
3169 struct pex_time
*pt
= ×
[i
];
3172 ut
= ((double) pt
->user_seconds
3173 + (double) pt
->user_microseconds
/ 1.0e6
);
3174 st
= ((double) pt
->system_seconds
3175 + (double) pt
->system_microseconds
/ 1.0e6
);
3180 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3182 if (report_times_to_file
)
3185 const char *const *j
;
3187 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3189 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3192 for (p
= *j
; *p
; ++p
)
3193 if (*p
== '"' || *p
== '\\' || *p
== '$'
3199 fprintf (report_times_to_file
, " \"");
3200 for (p
= *j
; *p
; ++p
)
3202 if (*p
== '"' || *p
== '\\' || *p
== '$')
3203 fputc ('\\', report_times_to_file
);
3204 fputc (*p
, report_times_to_file
);
3206 fputc ('"', report_times_to_file
);
3209 fprintf (report_times_to_file
, " %s", *j
);
3212 fputc ('\n', report_times_to_file
);
3222 /* Find all the switches given to us
3223 and make a vector describing them.
3224 The elements of the vector are strings, one per switch given.
3225 If a switch uses following arguments, then the `part1' field
3226 is the switch itself and the `args' field
3227 is a null-terminated vector containing the following arguments.
3228 Bits in the `live_cond' field are:
3229 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3230 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3231 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3232 The `validated' field is nonzero if any spec has looked at this switch;
3233 if it remains zero at the end of the run, it must be meaningless. */
3235 #define SWITCH_LIVE 0x1
3236 #define SWITCH_FALSE 0x2
3237 #define SWITCH_IGNORE 0x4
3243 unsigned int live_cond
;
3244 unsigned char validated
;
3245 unsigned char ordering
;
3248 static struct switchstr
*switches
;
3250 static int n_switches
;
3252 /* Set to zero if -fcompare-debug is disabled, positive if it's
3253 enabled and we're running the first compilation, negative if it's
3254 enabled and we're running the second compilation. For most of the
3255 time, it's in the range -1..1, but it can be temporarily set to 2
3256 or 3 to indicate that the -fcompare-debug flags didn't come from
3257 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3258 variable, until a synthesized -fcompare-debug flag is added to the
3262 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3263 int compare_debug_second
;
3265 /* Set to the flags that should be passed to the second compilation in
3266 a -fcompare-debug compilation. */
3267 const char *compare_debug_opt
;
3269 static struct switchstr
*switches_debug_check
[2];
3271 static int n_switches_debug_check
[2];
3273 static char *debug_check_temp_file
[2];
3275 /* Language is one of three things:
3277 1) The name of a real programming language.
3278 2) NULL, indicating that no one has figured out
3280 3) '*', indicating that the file should be passed
3285 const char *language
;
3286 struct compiler
*incompiler
;
3291 /* Also a vector of input files specified. */
3293 static struct infile
*infiles
;
3297 /* True if multiple input files are being compiled to a single
3300 static bool combine_inputs
;
3302 /* This counts the number of libraries added by lang_specific_driver, so that
3303 we can tell if there were any user supplied any files or libraries. */
3305 static int added_libraries
;
3307 /* And a vector of corresponding output files is made up later. */
3309 const char **outfiles
;
3311 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3313 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3314 is true if we should look for an executable suffix. DO_OBJ
3315 is true if we should look for an object suffix. */
3318 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3319 int do_obj ATTRIBUTE_UNUSED
)
3321 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3329 len
= strlen (name
);
3331 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3332 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3333 if (do_obj
&& len
> 2
3334 && name
[len
- 2] == '.'
3335 && name
[len
- 1] == 'o')
3337 obstack_grow (&obstack
, name
, len
- 2);
3338 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3339 name
= XOBFINISH (&obstack
, const char *);
3343 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3344 /* If there is no filetype, make it the executable suffix (which includes
3345 the "."). But don't get confused if we have just "-o". */
3346 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3349 for (i
= len
- 1; i
>= 0; i
--)
3350 if (IS_DIR_SEPARATOR (name
[i
]))
3353 for (i
++; i
< len
; i
++)
3357 obstack_grow (&obstack
, name
, len
);
3358 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3359 strlen (TARGET_EXECUTABLE_SUFFIX
));
3360 name
= XOBFINISH (&obstack
, const char *);
3367 /* Display the command line switches accepted by gcc. */
3371 printf (_("Usage: %s [options] file...\n"), programname
);
3372 fputs (_("Options:\n"), stdout
);
3374 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3375 fputs (_(" --help Display this information\n"), stdout
);
3376 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3377 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3378 fputs (_(" Display specific types of command line options\n"), stdout
);
3380 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3381 fputs (_(" --version Display compiler version information\n"), stdout
);
3382 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3383 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3384 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3385 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3386 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3387 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3388 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3389 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3391 -print-multi-lib Display the mapping between command line options and\n\
3392 multiple library search directories\n"), stdout
);
3393 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3394 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3395 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3396 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3397 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3398 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3399 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3400 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3401 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3402 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3403 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3404 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3406 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3407 prefixes to other gcc components\n"), stdout
);
3408 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3409 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3410 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3411 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3413 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3414 and libraries\n"), stdout
);
3415 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3416 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3417 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3418 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3419 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3420 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3421 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3422 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3423 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3425 -x <language> Specify the language of the following input files\n\
3426 Permissible languages include: c c++ assembler none\n\
3427 'none' means revert to the default behavior of\n\
3428 guessing the language based on the file's extension\n\
3432 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3433 passed on to the various sub-processes invoked by %s. In order to pass\n\
3434 other options on to these processes the -W<letter> options must be used.\n\
3437 /* The rest of the options are displayed by invocations of the various
3442 add_preprocessor_option (const char *option
, int len
)
3444 n_preprocessor_options
++;
3446 if (! preprocessor_options
)
3447 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3449 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3450 n_preprocessor_options
);
3452 preprocessor_options
[n_preprocessor_options
- 1] =
3453 save_string (option
, len
);
3457 add_assembler_option (const char *option
, int len
)
3459 n_assembler_options
++;
3461 if (! assembler_options
)
3462 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3464 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3465 n_assembler_options
);
3467 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3471 add_linker_option (const char *option
, int len
)
3475 if (! linker_options
)
3476 linker_options
= XNEWVEC (char *, n_linker_options
);
3478 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3480 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3484 add_plugin_libs(int *argcp
, const char *const **argvp
)
3487 const char *const *argv
= *argvp
;
3488 int spaces
= 0, i
= 0, nonspace_occurred
= 0, arglen
= 0;
3489 int new_size
= argc
;
3490 const char **new_argv
;
3491 const char *plugin_libs
;
3492 const char *sp
, *sp_begin
, *sp_end
;
3494 GET_ENVIRONMENT(plugin_libs
, "ICI_LIBS");
3495 if (plugin_libs
!= NULL
)
3497 length
= strlen(plugin_libs
);
3498 /* Trim ici_libs string */
3499 for (sp
= plugin_libs
; *sp
== ' '; sp
++);
3501 for (sp
= plugin_libs
+ length
- 1; (*sp
== ' ') && (sp
> sp_begin
); sp
--);
3503 length
= sp_end
- sp_begin
;
3504 /* split ici_libs and save args in argvp*/
3507 for (sp
= sp_begin
; sp
< sp_end
; sp
++)
3509 if ((*sp
== ' ') && nonspace_occurred
)
3512 nonspace_occurred
= 0;
3515 nonspace_occurred
= 1;
3517 new_size
= new_size
+ spaces
+ 1;
3518 /* Additional trailing slot is for NULL argument. */
3519 new_argv
= XNEWVEC (const char *, new_size
+ 1);
3523 new_argv
[i
] = argv
[i
];
3531 for (; (*sp
== ' ') && (sp
< sp_end
); sp
++);
3532 for(; (*(sp
+ arglen
) != ' ') && ((sp
+ arglen
) < sp_end
); arglen
++);
3533 new_argv
[i
] = save_string(sp
, arglen
);
3538 /* The last one should be the NULL */
3546 /* Create the vector `switches' and its contents.
3547 Store its length in `n_switches'. */
3550 process_command (int argc
, const char **argv
)
3555 const char *spec_lang
= 0;
3556 int last_language_n_infiles
;
3557 int lang_n_infiles
= 0;
3558 #ifdef MODIFY_TARGET_NAME
3559 int is_modify_target_name
;
3562 const char *tooldir_prefix
;
3563 char *(*get_relative_prefix
) (const char *, const char *,
3564 const char *) = NULL
;
3566 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3570 added_libraries
= 0;
3572 /* Add ICI_LIBS options */
3573 // add_plugin_libs(&argc, (const char *const **) &argv);
3575 /* Figure compiler version from version string. */
3577 compiler_version
= temp1
= xstrdup (version_string
);
3579 for (; *temp1
; ++temp1
)
3588 /* If there is a -V or -b option (or both), process it now, before
3589 trying to interpret the rest of the command line.
3590 Use heuristic that all configuration names must have at least
3591 one dash '-'. This allows us to pass options starting with -b. */
3592 if (argc
> 1 && argv
[1][0] == '-'
3593 && (argv
[1][1] == 'V'
3594 || (argv
[1][1] == 'b'
3595 && (argv
[1][2] == '\0'
3596 || NULL
!= strchr (argv
[1] + 2, '-')))))
3598 const char *new_version
= DEFAULT_TARGET_VERSION
;
3599 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3600 const char *progname
= argv
[0];
3608 while (argc
> 1 && argv
[1][0] == '-'
3609 && (argv
[1][1] == 'V'
3610 || (argv
[1][1] == 'b'
3611 && (argv
[1][2] == '\0'
3612 || NULL
!= strchr (argv
[1] + 2, '-')))))
3614 char opt
= argv
[1][1];
3616 if (argv
[1][2] != '\0')
3629 fatal ("'-%c' option must have argument", opt
);
3636 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3637 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3639 new_argv0
= XDUPVAR (char, progname
, baselen
,
3640 baselen
+ concat_length (new_version
, new_machine
,
3641 "-gcc-", NULL
) + 1);
3642 strcpy (new_argv0
+ baselen
, new_machine
);
3643 strcat (new_argv0
, "-gcc-");
3644 strcat (new_argv0
, new_version
);
3646 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3647 new_argv
[0] = new_argv0
;
3649 errmsg
= pex_one (PEX_SEARCH
, new_argv0
, new_argv
, progname
, NULL
,
3650 NULL
, &status
, &err
);
3655 fatal ("couldn't run '%s': %s", new_argv0
, errmsg
);
3657 fatal ("couldn't run '%s': %s: %s", new_argv0
, errmsg
,
3663 /* Convert new-style -- options to old-style. */
3664 translate_options (&argc
,
3665 CONST_CAST2 (const char *const **, const char ***,
3668 /* Do language-specific adjustment/addition of flags. */
3669 lang_specific_driver (&argc
,
3670 CONST_CAST2 (const char *const **, const char ***,
3674 /* Handle any -no-canonical-prefixes flag early, to assign the function
3675 that builds relative prefixes. This function creates default search
3676 paths that are needed later in normal option handling. */
3678 for (i
= 1; i
< argc
; i
++)
3680 if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
3682 get_relative_prefix
= make_relative_prefix_ignore_links
;
3686 if (! get_relative_prefix
)
3687 get_relative_prefix
= make_relative_prefix
;
3689 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3690 see if we can create it from the pathname specified in argv[0]. */
3692 gcc_libexec_prefix
= standard_libexec_prefix
;
3694 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3695 if (!gcc_exec_prefix
)
3697 gcc_exec_prefix
= get_relative_prefix (argv
[0],
3698 standard_bindir_prefix
,
3699 standard_exec_prefix
);
3700 gcc_libexec_prefix
= get_relative_prefix (argv
[0],
3701 standard_bindir_prefix
,
3702 standard_libexec_prefix
);
3703 if (gcc_exec_prefix
)
3704 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3708 /* make_relative_prefix requires a program name, but
3709 GCC_EXEC_PREFIX is typically a directory name with a trailing
3710 / (which is ignored by make_relative_prefix), so append a
3712 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3713 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3714 standard_exec_prefix
,
3715 standard_libexec_prefix
);
3717 /* The path is unrelocated, so fallback to the original setting. */
3718 if (!gcc_libexec_prefix
)
3719 gcc_libexec_prefix
= standard_libexec_prefix
;
3725 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3726 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3727 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3729 if (gcc_exec_prefix
)
3731 int len
= strlen (gcc_exec_prefix
);
3733 if (len
> (int) sizeof ("/lib/gcc/") - 1
3734 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3736 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3737 if (IS_DIR_SEPARATOR (*temp
)
3738 && strncmp (temp
+ 1, "lib", 3) == 0
3739 && IS_DIR_SEPARATOR (temp
[4])
3740 && strncmp (temp
+ 5, "gcc", 3) == 0)
3741 len
-= sizeof ("/lib/gcc/") - 1;
3744 set_std_prefix (gcc_exec_prefix
, len
);
3745 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3746 PREFIX_PRIORITY_LAST
, 0, 0);
3747 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3748 PREFIX_PRIORITY_LAST
, 0, 0);
3751 /* COMPILER_PATH and LIBRARY_PATH have values
3752 that are lists of directory names with colons. */
3754 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3757 const char *startp
, *endp
;
3758 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3760 startp
= endp
= temp
;
3763 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3765 strncpy (nstore
, startp
, endp
- startp
);
3767 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3768 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3770 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3771 nstore
[endp
- startp
+ 1] = 0;
3774 nstore
[endp
- startp
] = 0;
3775 add_prefix (&exec_prefixes
, nstore
, 0,
3776 PREFIX_PRIORITY_LAST
, 0, 0);
3777 add_prefix (&include_prefixes
, nstore
, 0,
3778 PREFIX_PRIORITY_LAST
, 0, 0);
3781 endp
= startp
= endp
+ 1;
3788 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3789 if (temp
&& *cross_compile
== '0')
3791 const char *startp
, *endp
;
3792 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3794 startp
= endp
= temp
;
3797 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3799 strncpy (nstore
, startp
, endp
- startp
);
3801 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3802 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3804 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3805 nstore
[endp
- startp
+ 1] = 0;
3808 nstore
[endp
- startp
] = 0;
3809 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3810 PREFIX_PRIORITY_LAST
, 0, 1);
3813 endp
= startp
= endp
+ 1;
3820 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3821 GET_ENVIRONMENT (temp
, "LPATH");
3822 if (temp
&& *cross_compile
== '0')
3824 const char *startp
, *endp
;
3825 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3827 startp
= endp
= temp
;
3830 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3832 strncpy (nstore
, startp
, endp
- startp
);
3834 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3835 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3837 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3838 nstore
[endp
- startp
+ 1] = 0;
3841 nstore
[endp
- startp
] = 0;
3842 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3843 PREFIX_PRIORITY_LAST
, 0, 1);
3846 endp
= startp
= endp
+ 1;
3853 /* Scan argv twice. Here, the first time, just count how many switches
3854 there will be in their vector, and how many input files in theirs.
3855 Here we also parse the switches that cc itself uses (e.g. -v). */
3857 for (i
= 1; i
< argc
; i
++)
3859 if (! strcmp (argv
[i
], "-dumpspecs"))
3861 struct spec_list
*sl
;
3863 for (sl
= specs
; sl
; sl
= sl
->next
)
3864 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3865 if (link_command_spec
)
3866 printf ("*link_command:\n%s\n\n", link_command_spec
);
3869 else if (! strcmp (argv
[i
], "-dumpversion"))
3871 printf ("%s\n", spec_version
);
3874 else if (! strcmp (argv
[i
], "-dumpmachine"))
3876 printf ("%s\n", spec_machine
);
3879 else if (strcmp (argv
[i
], "-fversion") == 0)
3881 /* translate_options () has turned --version into -fversion. */
3884 /* We will be passing a dummy file on to the sub-processes. */
3888 /* CPP driver cannot obtain switch from cc1_options. */
3890 add_preprocessor_option ("--version", strlen ("--version"));
3891 add_assembler_option ("--version", strlen ("--version"));
3892 add_linker_option ("--version", strlen ("--version"));
3894 else if (strcmp (argv
[i
], "-fhelp") == 0)
3896 /* translate_options () has turned --help into -fhelp. */
3897 print_help_list
= 1;
3899 /* We will be passing a dummy file on to the sub-processes. */
3903 /* CPP driver cannot obtain switch from cc1_options. */
3905 add_preprocessor_option ("--help", 6);
3906 add_assembler_option ("--help", 6);
3907 add_linker_option ("--help", 6);
3909 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3911 /* translate_options () has turned --help into -fhelp. */
3912 print_subprocess_help
= 2;
3914 /* We will be passing a dummy file on to the sub-processes. */
3918 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3920 /* translate_options() has turned --target-help into -ftarget-help. */
3921 print_subprocess_help
= 1;
3923 /* We will be passing a dummy file on to the sub-processes. */
3927 /* CPP driver cannot obtain switch from cc1_options. */
3929 add_preprocessor_option ("--target-help", 13);
3930 add_assembler_option ("--target-help", 13);
3931 add_linker_option ("--target-help", 13);
3933 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3935 pass_exit_codes
= 1;
3938 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3939 print_search_dirs
= 1;
3940 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3941 print_file_name
= "libgcc.a";
3942 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3943 print_file_name
= argv
[i
] + 17;
3944 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3945 print_prog_name
= argv
[i
] + 17;
3946 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3947 print_multi_lib
= 1;
3948 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3949 print_multi_directory
= 1;
3950 else if (! strcmp (argv
[i
], "-print-sysroot"))
3952 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3953 print_multi_os_directory
= 1;
3954 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3955 print_sysroot_headers_suffix
= 1;
3956 else if (! strcmp (argv
[i
], "-fcompare-debug-second"))
3958 compare_debug_second
= 1;
3961 else if (! strcmp (argv
[i
], "-fno-compare-debug"))
3963 argv
[i
] = "-fcompare-debug=";
3964 goto compare_debug_with_arg
;
3966 else if (! strcmp (argv
[i
], "-fcompare-debug"))
3968 argv
[i
] = "-fcompare-debug=-gtoggle";
3969 goto compare_debug_with_arg
;
3971 #define OPT "-fcompare-debug="
3972 else if (! strncmp (argv
[i
], OPT
, sizeof (OPT
) - 1))
3975 compare_debug_with_arg
:
3976 opt
= argv
[i
] + sizeof (OPT
) - 1;
3982 if (compare_debug
< 0)
3983 compare_debug_opt
= NULL
;
3985 compare_debug_opt
= opt
;
3988 else if (! strncmp (argv
[i
], "-Wa,", 4))
3991 /* Pass the rest of this option to the assembler. */
3993 /* Split the argument at commas. */
3995 for (j
= 4; argv
[i
][j
]; j
++)
3996 if (argv
[i
][j
] == ',')
3998 add_assembler_option (argv
[i
] + prev
, j
- prev
);
4002 /* Record the part after the last comma. */
4003 add_assembler_option (argv
[i
] + prev
, j
- prev
);
4005 else if (! strncmp (argv
[i
], "-Wp,", 4))
4008 /* Pass the rest of this option to the preprocessor. */
4010 /* Split the argument at commas. */
4012 for (j
= 4; argv
[i
][j
]; j
++)
4013 if (argv
[i
][j
] == ',')
4015 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
4019 /* Record the part after the last comma. */
4020 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
4022 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4023 /* The +e options to the C++ front-end. */
4025 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4028 /* Split the argument at commas. */
4029 for (j
= 3; argv
[i
][j
]; j
++)
4030 n_infiles
+= (argv
[i
][j
] == ',');
4032 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4035 fatal ("argument to '-Xlinker' is missing");
4040 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4043 fatal ("argument to '-Xpreprocessor' is missing");
4045 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
4047 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4050 fatal ("argument to '-Xassembler' is missing");
4052 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
4054 else if (strcmp (argv
[i
], "-l") == 0)
4057 fatal ("argument to '-l' is missing");
4062 else if (strncmp (argv
[i
], "-l", 2) == 0)
4064 else if (strcmp (argv
[i
], "-save-temps") == 0)
4066 save_temps_flag
= SAVE_TEMPS_CWD
;
4069 else if (strncmp (argv
[i
], "-save-temps=", 12) == 0)
4072 if (strcmp (argv
[i
]+12, "cwd") == 0)
4073 save_temps_flag
= SAVE_TEMPS_CWD
;
4074 else if (strcmp (argv
[i
]+12, "obj") == 0
4075 || strcmp (argv
[i
]+12, "object") == 0)
4076 save_temps_flag
= SAVE_TEMPS_OBJ
;
4078 fatal ("'%s' is an unknown -save-temps option", argv
[i
]);
4080 else if (strcmp (argv
[i
], "-no-canonical-prefixes") == 0)
4081 /* Already handled as a special case, so ignored here. */
4083 else if (strcmp (argv
[i
], "-combine") == 0)
4088 else if (strcmp (argv
[i
], "-specs") == 0)
4090 struct user_specs
*user
= XNEW (struct user_specs
);
4092 fatal ("argument to '-specs' is missing");
4094 user
->next
= (struct user_specs
*) 0;
4095 user
->filename
= argv
[i
];
4096 if (user_specs_tail
)
4097 user_specs_tail
->next
= user
;
4099 user_specs_head
= user
;
4100 user_specs_tail
= user
;
4102 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4104 struct user_specs
*user
= XNEW (struct user_specs
);
4105 if (strlen (argv
[i
]) == 7)
4106 fatal ("argument to '-specs=' is missing");
4108 user
->next
= (struct user_specs
*) 0;
4109 user
->filename
= argv
[i
] + 7;
4110 if (user_specs_tail
)
4111 user_specs_tail
->next
= user
;
4113 user_specs_head
= user
;
4114 user_specs_tail
= user
;
4116 else if (strcmp (argv
[i
], "-time") == 0)
4118 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4120 if (report_times_to_file
)
4121 fclose (report_times_to_file
);
4122 report_times_to_file
= fopen (argv
[i
] + sizeof ("-time=") - 1, "a");
4124 else if (strcmp (argv
[i
], "-pipe") == 0)
4126 /* -pipe has to go into the switches array as well as
4131 else if (strcmp (argv
[i
], "-wrapper") == 0)
4134 fatal ("argument to '-wrapper' is missing");
4136 wrapper_string
= argv
[i
];
4140 else if (strcmp (argv
[i
], "-###") == 0)
4142 /* This is similar to -v except that there is no execution
4143 of the commands and the echoed arguments are quoted. It
4144 is intended for use in shell scripts to capture the
4145 driver-generated command line. */
4146 verbose_only_flag
++;
4149 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4151 const char *p
= &argv
[i
][1];
4157 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
4162 fatal ("'-%c' must come at the start of the command line", c
);
4170 if (p
[1] == 0 && i
+ 1 == argc
)
4171 fatal ("argument to '-B' is missing");
4177 len
= strlen (value
);
4179 /* Catch the case where the user has forgotten to append a
4180 directory separator to the path. Note, they may be using
4181 -B to add an executable name prefix, eg "i386-elf-", in
4182 order to distinguish between multiple installations of
4183 GCC in the same directory. Hence we must check to see
4184 if appending a directory separator actually makes a
4185 valid directory name. */
4186 if (! IS_DIR_SEPARATOR (value
[len
- 1])
4187 && is_directory (value
, false))
4189 char *tmp
= XNEWVEC (char, len
+ 2);
4190 strcpy (tmp
, value
);
4191 tmp
[len
] = DIR_SEPARATOR
;
4196 add_prefix (&exec_prefixes
, value
, NULL
,
4197 PREFIX_PRIORITY_B_OPT
, 0, 0);
4198 add_prefix (&startfile_prefixes
, value
, NULL
,
4199 PREFIX_PRIORITY_B_OPT
, 0, 0);
4200 add_prefix (&include_prefixes
, value
, NULL
,
4201 PREFIX_PRIORITY_B_OPT
, 0, 0);
4206 case 'v': /* Print our subcommands and print versions. */
4208 /* If they do anything other than exactly `-v', don't set
4209 verbose_flag; rather, continue on to give the error. */
4228 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4233 /* Forward scan, just in case -S, -E or -c is specified
4240 if (argv
[j
][0] == '-')
4242 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
4248 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
4249 j
+= skip
- (argv
[j
][2] != 0);
4250 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
4257 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4259 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
4261 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
4263 /* Save the output name in case -save-temps=obj was used. */
4264 if ((p
[1] == 0) && argv
[i
+ 1])
4265 save_temps_prefix
= xstrdup(argv
[i
+ 1]);
4267 save_temps_prefix
= xstrdup(argv
[i
] + 1);
4273 #ifdef MODIFY_TARGET_NAME
4274 is_modify_target_name
= 0;
4276 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4277 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4279 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
4280 + strlen (spec_machine
));
4283 int made_addition
= 0;
4285 is_modify_target_name
= 1;
4286 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
4288 if (modify_target
[j
].add_del
== DELETE
4289 && (! strncmp (q
, modify_target
[j
].str
,
4290 strlen (modify_target
[j
].str
))))
4291 p
+= strlen (modify_target
[j
].str
);
4292 else if (modify_target
[j
].add_del
== ADD
4293 && ! made_addition
&& *p
== '-')
4295 for (r
= modify_target
[j
].str
; *r
!= 0; )
4303 spec_machine
= new_name
;
4306 if (is_modify_target_name
)
4312 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4313 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4314 else if (WORD_SWITCH_TAKES_ARG (p
))
4315 i
+= WORD_SWITCH_TAKES_ARG (p
);
4325 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4326 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4327 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4329 save_temps_length
= strlen (save_temps_prefix
);
4330 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4333 save_temps_length
-= strlen (temp
);
4334 save_temps_prefix
[save_temps_length
] = '\0';
4338 else if (save_temps_prefix
!= NULL
)
4340 free (save_temps_prefix
);
4341 save_temps_prefix
= NULL
;
4344 if (save_temps_flag
&& use_pipes
)
4346 /* -save-temps overrides -pipe, so that temp files are produced */
4347 if (save_temps_flag
)
4348 error ("warning: -pipe ignored because -save-temps specified");
4354 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4356 if (gcd
&& gcd
[0] == '-')
4359 compare_debug_opt
= gcd
;
4362 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4365 compare_debug_opt
= "-gtoggle";
4369 else if (compare_debug
< 0)
4372 gcc_assert (!compare_debug_opt
);
4375 /* Set up the search paths. We add directories that we expect to
4376 contain GNU Toolchain components before directories specified by
4377 the machine description so that we will find GNU components (like
4378 the GNU assembler) before those of the host system. */
4380 /* If we don't know where the toolchain has been installed, use the
4381 configured-in locations. */
4382 if (!gcc_exec_prefix
)
4385 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4386 PREFIX_PRIORITY_LAST
, 1, 0);
4387 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4388 PREFIX_PRIORITY_LAST
, 2, 0);
4389 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4390 PREFIX_PRIORITY_LAST
, 2, 0);
4392 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4393 PREFIX_PRIORITY_LAST
, 1, 0);
4396 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4397 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4398 dir_separator_str
, NULL
);
4400 /* Look for tools relative to the location from which the driver is
4401 running, or, if that is not available, the configured prefix. */
4403 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4404 spec_machine
, dir_separator_str
,
4405 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4407 add_prefix (&exec_prefixes
,
4408 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4409 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4410 add_prefix (&startfile_prefixes
,
4411 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4412 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4414 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4415 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4416 then consider it to relocate with the rest of the GCC installation
4417 if GCC_EXEC_PREFIX is set.
4418 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4419 if (target_system_root
&& gcc_exec_prefix
)
4421 char *tmp_prefix
= get_relative_prefix (argv
[0],
4422 standard_bindir_prefix
,
4423 target_system_root
);
4424 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4426 target_system_root
= tmp_prefix
;
4427 target_system_root_changed
= 1;
4432 /* More prefixes are enabled in main, after we read the specs file
4433 and determine whether this is cross-compilation or not. */
4435 /* Then create the space for the vectors and scan again. */
4437 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4438 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4441 last_language_n_infiles
= -1;
4443 /* This, time, copy the text of each switch and store a pointer
4444 to the copy in the vector of switches.
4445 Store all the infiles in their vector. */
4447 for (i
= 1; i
< argc
; i
++)
4449 /* Just skip the switches that were handled by the preceding loop. */
4450 #ifdef MODIFY_TARGET_NAME
4451 is_modify_target_name
= 0;
4453 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4454 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4455 is_modify_target_name
= 1;
4457 if (is_modify_target_name
)
4461 if (! strncmp (argv
[i
], "-Wa,", 4))
4463 else if (! strncmp (argv
[i
], "-Wp,", 4))
4465 else if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
4467 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4469 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4471 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4473 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4475 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4477 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4479 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4481 else if (! strcmp (argv
[i
], "-print-sysroot"))
4483 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4485 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4487 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4489 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4490 target_system_root_changed
= 1;
4492 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4494 /* Compensate for the +e options to the C++ front-end;
4495 they're there simply for cfront call-compatibility. We do
4496 some magic in default_compilers to pass them down properly.
4497 Note we deliberately start at the `+' here, to avoid passing
4498 -e0 or -e1 down into the linker. */
4499 switches
[n_switches
].part1
= &argv
[i
][0];
4500 switches
[n_switches
].args
= 0;
4501 switches
[n_switches
].live_cond
= 0;
4502 switches
[n_switches
].validated
= 0;
4505 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4508 /* Split the argument at commas. */
4510 for (j
= 4; argv
[i
][j
]; j
++)
4511 if (argv
[i
][j
] == ',')
4513 infiles
[n_infiles
].language
= "*";
4514 infiles
[n_infiles
++].name
4515 = save_string (argv
[i
] + prev
, j
- prev
);
4518 /* Record the part after the last comma. */
4519 infiles
[n_infiles
].language
= "*";
4520 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4522 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4524 infiles
[n_infiles
].language
= "*";
4525 infiles
[n_infiles
++].name
= argv
[++i
];
4527 /* Xassembler and Xpreprocessor were already handled in the first argv
4528 scan, so all we need to do here is ignore them and their argument. */
4529 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4531 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4533 else if (strcmp (argv
[i
], "-l") == 0)
4534 { /* POSIX allows separation of -l and the lib arg;
4535 canonicalize by concatenating -l with its arg */
4536 infiles
[n_infiles
].language
= "*";
4537 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4539 else if (strncmp (argv
[i
], "-l", 2) == 0)
4541 infiles
[n_infiles
].language
= "*";
4542 infiles
[n_infiles
++].name
= argv
[i
];
4544 else if (strcmp (argv
[i
], "-wrapper") == 0)
4546 else if (strcmp (argv
[i
], "-specs") == 0)
4548 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4550 else if (strcmp (argv
[i
], "-time") == 0)
4552 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4554 else if (strcmp (argv
[i
], "-###") == 0)
4556 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4558 const char *p
= &argv
[i
][1];
4563 if (p
[1] == 0 && i
+ 1 == argc
)
4564 fatal ("argument to '-x' is missing");
4566 spec_lang
= argv
[++i
];
4569 if (! strcmp (spec_lang
, "none"))
4570 /* Suppress the warning if -xnone comes after the last input
4571 file, because alternate command interfaces like g++ might
4572 find it useful to place -xnone after each input file. */
4575 last_language_n_infiles
= n_infiles
;
4578 switches
[n_switches
].part1
= p
;
4579 /* Deal with option arguments in separate argv elements. */
4580 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4581 || WORD_SWITCH_TAKES_ARG (p
))
4584 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4588 /* Count only the option arguments in separate argv elements. */
4589 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4591 if (i
+ n_args
>= argc
)
4592 fatal ("argument to '-%s' is missing", p
);
4593 switches
[n_switches
].args
4594 = XNEWVEC (const char *, n_args
+ 1);
4596 switches
[n_switches
].args
[j
++] = argv
[++i
];
4597 /* Null-terminate the vector. */
4598 switches
[n_switches
].args
[j
] = 0;
4600 else if (strchr (switches_need_spaces
, c
))
4602 /* On some systems, ld cannot handle some options without
4603 a space. So split the option from its argument. */
4604 char *part1
= XNEWVEC (char, 2);
4608 switches
[n_switches
].part1
= part1
;
4609 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4610 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4611 switches
[n_switches
].args
[1] = 0;
4614 switches
[n_switches
].args
= 0;
4616 switches
[n_switches
].live_cond
= 0;
4617 switches
[n_switches
].validated
= 0;
4618 switches
[n_switches
].ordering
= 0;
4619 /* These are always valid, since gcc.c itself understands the
4620 first four and gfortranspec.c understands -static-libgfortran. */
4621 if (!strcmp (p
, "save-temps")
4622 || !strcmp (p
, "static-libgcc")
4623 || !strcmp (p
, "shared-libgcc")
4624 || !strcmp (p
, "pipe")
4625 || !strcmp (p
, "static-libgfortran"))
4626 switches
[n_switches
].validated
= 1;
4629 char ch
= switches
[n_switches
].part1
[0];
4631 switches
[n_switches
].validated
= 1;
4637 const char *p
= strchr (argv
[i
], '@');
4639 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4640 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4643 fname
= xstrdup (argv
[i
]);
4646 fname
= (char *)xmalloc (p
- argv
[i
] + 1);
4647 memcpy (fname
, argv
[i
], p
- argv
[i
]);
4648 fname
[p
- argv
[i
]] = '\0';
4651 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4653 perror_with_name (fname
);
4658 infiles
[n_infiles
].language
= spec_lang
;
4659 infiles
[n_infiles
++].name
= argv
[i
];
4666 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4667 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4669 if (compare_debug
== 2 || compare_debug
== 3)
4671 switches
[n_switches
].part1
= concat ("fcompare-debug=",
4674 switches
[n_switches
].args
= 0;
4675 switches
[n_switches
].live_cond
= 0;
4676 switches
[n_switches
].validated
= 0;
4677 switches
[n_switches
].ordering
= 0;
4682 /* Ensure we only invoke each subprocess once. */
4683 if (print_subprocess_help
|| print_help_list
|| print_version
)
4687 /* Create a dummy input file, so that we can pass
4688 the help option on to the various sub-processes. */
4689 infiles
[0].language
= "c";
4690 infiles
[0].name
= "help-dummy";
4693 switches
[n_switches
].part1
= 0;
4694 infiles
[n_infiles
].name
= 0;
4697 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4698 and place that in the environment. */
4701 set_collect_gcc_options (void)
4706 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4708 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4709 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4712 for (i
= 0; (int) i
< n_switches
; i
++)
4714 const char *const *args
;
4717 obstack_grow (&collect_obstack
, " ", 1);
4721 /* Ignore elided switches. */
4722 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4725 obstack_grow (&collect_obstack
, "'-", 2);
4726 q
= switches
[i
].part1
;
4727 while ((p
= strchr (q
, '\'')))
4729 obstack_grow (&collect_obstack
, q
, p
- q
);
4730 obstack_grow (&collect_obstack
, "'\\''", 4);
4733 obstack_grow (&collect_obstack
, q
, strlen (q
));
4734 obstack_grow (&collect_obstack
, "'", 1);
4736 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4738 obstack_grow (&collect_obstack
, " '", 2);
4740 while ((p
= strchr (q
, '\'')))
4742 obstack_grow (&collect_obstack
, q
, p
- q
);
4743 obstack_grow (&collect_obstack
, "'\\''", 4);
4746 obstack_grow (&collect_obstack
, q
, strlen (q
));
4747 obstack_grow (&collect_obstack
, "'", 1);
4750 obstack_grow (&collect_obstack
, "\0", 1);
4751 xputenv (XOBFINISH (&collect_obstack
, char *));
4754 /* Process a spec string, accumulating and running commands. */
4756 /* These variables describe the input file name.
4757 input_file_number is the index on outfiles of this file,
4758 so that the output file name can be stored for later use by %o.
4759 input_basename is the start of the part of the input file
4760 sans all directory names, and basename_length is the number
4761 of characters starting there excluding the suffix .c or whatever. */
4763 static const char *input_filename
;
4764 static int input_file_number
;
4765 size_t input_filename_length
;
4766 static int basename_length
;
4767 static int suffixed_basename_length
;
4768 static const char *input_basename
;
4769 static const char *input_suffix
;
4770 #ifndef HOST_LACKS_INODE_NUMBERS
4771 static struct stat input_stat
;
4773 static int input_stat_set
;
4775 /* The compiler used to process the current input file. */
4776 static struct compiler
*input_file_compiler
;
4778 /* These are variables used within do_spec and do_spec_1. */
4780 /* Nonzero if an arg has been started and not yet terminated
4781 (with space, tab or newline). */
4782 static int arg_going
;
4784 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4785 is a temporary file name. */
4786 static int delete_this_arg
;
4788 /* Nonzero means %w has been seen; the next arg to be terminated
4789 is the output file name of this compilation. */
4790 static int this_is_output_file
;
4792 /* Nonzero means %s has been seen; the next arg to be terminated
4793 is the name of a library file and we should try the standard
4794 search dirs for it. */
4795 static int this_is_library_file
;
4797 /* Nonzero means %T has been seen; the next arg to be terminated
4798 is the name of a linker script and we should try all of the
4799 standard search dirs for it. If it is found insert a --script
4800 command line switch and then substitute the full path in place,
4801 otherwise generate an error message. */
4802 static int this_is_linker_script
;
4804 /* Nonzero means that the input of this command is coming from a pipe. */
4805 static int input_from_pipe
;
4807 /* Nonnull means substitute this for any suffix when outputting a switches
4809 static const char *suffix_subst
;
4811 /* If there is an argument being accumulated, terminate it and store it. */
4814 end_going_arg (void)
4820 obstack_1grow (&obstack
, 0);
4821 string
= XOBFINISH (&obstack
, const char *);
4822 if (this_is_library_file
)
4823 string
= find_file (string
);
4824 if (this_is_linker_script
)
4826 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4828 if (full_script_path
== NULL
)
4830 error (_("unable to locate default linker script '%s' in the library search paths"), string
);
4831 /* Script was not found on search path. */
4834 store_arg ("--script", false, false);
4835 string
= full_script_path
;
4837 store_arg (string
, delete_this_arg
, this_is_output_file
);
4838 if (this_is_output_file
)
4839 outfiles
[input_file_number
] = string
;
4845 /* Parse the WRAPPER string which is a comma separated list of the command line
4846 and insert them into the beginning of argbuf. */
4849 insert_wrapper (const char *wrapper
)
4853 char *buf
= xstrdup (wrapper
);
4862 while ((p
= strchr (p
, ',')) != NULL
);
4864 if (argbuf_index
+ n
>= argbuf_length
)
4866 argbuf_length
= argbuf_length
* 2;
4867 while (argbuf_length
< argbuf_index
+ n
)
4869 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4871 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4872 argbuf
[i
+ n
] = argbuf
[i
];
4885 while ((p
= strchr (p
, ',')) != NULL
);
4886 gcc_assert (i
== n
);
4890 /* Process the spec SPEC and run the commands specified therein.
4891 Returns 0 if the spec is successfully processed; -1 if failed. */
4894 do_spec (const char *spec
)
4898 value
= do_spec_2 (spec
);
4900 /* Force out any unfinished command.
4901 If -pipe, this forces out the last command if it ended in `|'. */
4904 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4907 set_collect_gcc_options ();
4909 if (argbuf_index
> 0)
4917 do_spec_2 (const char *spec
)
4923 delete_this_arg
= 0;
4924 this_is_output_file
= 0;
4925 this_is_library_file
= 0;
4926 this_is_linker_script
= 0;
4927 input_from_pipe
= 0;
4928 suffix_subst
= NULL
;
4930 result
= do_spec_1 (spec
, 0, NULL
);
4938 /* Process the given spec string and add any new options to the end
4939 of the switches/n_switches array. */
4942 do_option_spec (const char *name
, const char *spec
)
4944 unsigned int i
, value_count
, value_len
;
4945 const char *p
, *q
, *value
;
4946 char *tmp_spec
, *tmp_spec_p
;
4948 if (configure_default_options
[0].name
== NULL
)
4951 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4952 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4954 if (i
== ARRAY_SIZE (configure_default_options
))
4957 value
= configure_default_options
[i
].value
;
4958 value_len
= strlen (value
);
4960 /* Compute the size of the final spec. */
4963 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4969 /* Replace each %(VALUE) by the specified value. */
4970 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4971 + value_count
* (value_len
- strlen ("%(VALUE)")));
4972 tmp_spec_p
= tmp_spec
;
4974 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4976 memcpy (tmp_spec_p
, q
, p
- q
);
4977 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4978 memcpy (tmp_spec_p
, value
, value_len
);
4979 tmp_spec_p
+= value_len
;
4980 q
= p
+ strlen ("%(VALUE)");
4982 strcpy (tmp_spec_p
, q
);
4984 do_self_spec (tmp_spec
);
4987 /* Process the given spec string and add any new options to the end
4988 of the switches/n_switches array. */
4991 do_self_spec (const char *spec
)
4994 do_spec_1 (" ", 0, NULL
);
4996 if (argbuf_index
> 0)
5000 switches
= XRESIZEVEC (struct switchstr
, switches
,
5001 n_switches
+ argbuf_index
+ 1);
5003 for (i
= 0; i
< argbuf_index
; i
++)
5005 struct switchstr
*sw
;
5006 const char *p
= argbuf
[i
];
5009 /* Each switch should start with '-'. */
5011 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
5016 sw
= &switches
[n_switches
++];
5022 /* Deal with option arguments in separate argv elements. */
5023 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
5024 || WORD_SWITCH_TAKES_ARG (p
))
5027 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
5031 /* Count only the option arguments in separate argv elements. */
5032 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
5034 if (i
+ n_args
>= argbuf_index
)
5035 fatal ("argument to '-%s' is missing", p
);
5037 = XNEWVEC (const char *, n_args
+ 1);
5039 sw
->args
[j
++] = argbuf
[++i
];
5040 /* Null-terminate the vector. */
5043 else if (strchr (switches_need_spaces
, c
))
5045 /* On some systems, ld cannot handle some options without
5046 a space. So split the option from its argument. */
5047 char *part1
= XNEWVEC (char, 2);
5052 sw
->args
= XNEWVEC (const char *, 2);
5053 sw
->args
[0] = xstrdup (p
+1);
5060 switches
[n_switches
].part1
= 0;
5064 /* Callback for processing %D and %I specs. */
5066 struct spec_path_info
{
5071 bool separate_options
;
5075 spec_path (char *path
, void *data
)
5077 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5081 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5084 if (info
->append_len
!= 0)
5086 len
= strlen (path
);
5087 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5090 if (!is_directory (path
, true))
5093 do_spec_1 (info
->option
, 1, NULL
);
5094 if (info
->separate_options
)
5095 do_spec_1 (" ", 0, NULL
);
5097 if (info
->append_len
== 0)
5099 len
= strlen (path
);
5100 save
= path
[len
- 1];
5101 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5102 path
[len
- 1] = '\0';
5105 do_spec_1 (path
, 1, NULL
);
5106 do_spec_1 (" ", 0, NULL
);
5108 /* Must not damage the original path. */
5109 if (info
->append_len
== 0)
5110 path
[len
- 1] = save
;
5115 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5119 create_at_file (char **argv
)
5121 char *temp_file
= make_temp_file ("");
5122 char *at_argument
= concat ("@", temp_file
, NULL
);
5123 FILE *f
= fopen (temp_file
, "w");
5127 fatal ("could not open temporary response file %s",
5130 status
= writeargv (argv
, f
);
5133 fatal ("could not write to temporary response file %s",
5136 status
= fclose (f
);
5139 fatal ("could not close temporary response file %s",
5142 store_arg (at_argument
, 0, 0);
5144 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5147 /* True if we should compile INFILE. */
5150 compile_input_file_p (struct infile
*infile
)
5152 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5153 if (infile
->incompiler
== input_file_compiler
)
5158 /* Process the sub-spec SPEC as a portion of a larger spec.
5159 This is like processing a whole spec except that we do
5160 not initialize at the beginning and we do not supply a
5161 newline by default at the end.
5162 INSWITCH nonzero means don't process %-sequences in SPEC;
5163 in this case, % is treated as an ordinary character.
5164 This is used while substituting switches.
5165 INSWITCH nonzero also causes SPC not to terminate an argument.
5167 Value is zero unless a line was finished
5168 and the command on that line reported an error. */
5171 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5173 const char *p
= spec
;
5179 /* If substituting a switch, treat all chars like letters.
5180 Otherwise, NL, SPC, TAB and % are special. */
5181 switch (inswitch
? 'a' : c
)
5186 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
5188 /* A `|' before the newline means use a pipe here,
5189 but only if -pipe was specified.
5190 Otherwise, execute now and don't pass the `|' as an arg. */
5193 input_from_pipe
= 1;
5200 set_collect_gcc_options ();
5202 if (argbuf_index
> 0)
5208 /* Reinitialize for a new command, and for a new argument. */
5211 delete_this_arg
= 0;
5212 this_is_output_file
= 0;
5213 this_is_library_file
= 0;
5214 this_is_linker_script
= 0;
5215 input_from_pipe
= 0;
5222 obstack_1grow (&obstack
, c
);
5230 /* Reinitialize for a new argument. */
5231 delete_this_arg
= 0;
5232 this_is_output_file
= 0;
5233 this_is_library_file
= 0;
5234 this_is_linker_script
= 0;
5241 fatal ("spec '%s' invalid", spec
);
5244 if (save_temps_length
)
5245 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5247 obstack_grow (&obstack
, input_basename
, basename_length
);
5248 if (compare_debug
< 0)
5249 obstack_grow (&obstack
, ".gk", 3);
5254 if (save_temps_length
)
5255 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5257 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5258 if (compare_debug
< 0)
5259 obstack_grow (&obstack
, ".gk", 3);
5264 delete_this_arg
= 2;
5267 /* Dump out the directories specified with LIBRARY_PATH,
5268 followed by the absolute directories
5269 that we search for startfiles. */
5272 struct spec_path_info info
;
5275 info
.append_len
= 0;
5276 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5277 /* Used on systems which record the specified -L dirs
5278 and use them to search for dynamic linking.
5279 Relative directories always come from -B,
5280 and it is better not to use them for searching
5281 at run time. In particular, stage1 loses. */
5282 info
.omit_relative
= true;
5284 info
.omit_relative
= false;
5286 info
.separate_options
= false;
5288 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5293 /* %efoo means report an error with `foo' as error message
5294 and don't execute any more commands for this file. */
5298 while (*p
!= 0 && *p
!= '\n')
5300 buf
= (char *) alloca (p
- q
+ 1);
5301 strncpy (buf
, q
, p
- q
);
5308 /* %nfoo means report a notice with `foo' on stderr. */
5312 while (*p
!= 0 && *p
!= '\n')
5314 buf
= (char *) alloca (p
- q
+ 1);
5315 strncpy (buf
, q
, p
- q
);
5317 notice ("%s\n", buf
);
5327 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5328 defined, and it is not a directory, and it is
5329 writable, use it. Otherwise, treat this like any
5330 other temporary file. */
5332 if ((!save_temps_flag
)
5333 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5334 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5336 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5337 strlen (HOST_BIT_BUCKET
));
5338 delete_this_arg
= 0;
5343 goto create_temp_file
;
5347 obstack_1grow (&obstack
, '-');
5348 delete_this_arg
= 0;
5351 /* consume suffix */
5352 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5354 if (p
[0] == '%' && p
[1] == 'O')
5359 goto create_temp_file
;
5363 /* consume suffix */
5364 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5366 if (p
[0] == '%' && p
[1] == 'O')
5371 goto create_temp_file
;
5377 struct temp_name
*t
;
5379 const char *suffix
= p
;
5380 char *saved_suffix
= NULL
;
5382 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5384 suffix_length
= p
- suffix
;
5385 if (p
[0] == '%' && p
[1] == 'O')
5388 /* We don't support extra suffix characters after %O. */
5389 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5390 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
5391 if (suffix_length
== 0)
5392 suffix
= TARGET_OBJECT_SUFFIX
;
5396 = XNEWVEC (char, suffix_length
5397 + strlen (TARGET_OBJECT_SUFFIX
));
5398 strncpy (saved_suffix
, suffix
, suffix_length
);
5399 strcpy (saved_suffix
+ suffix_length
,
5400 TARGET_OBJECT_SUFFIX
);
5402 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5405 if (compare_debug
< 0)
5407 suffix
= concat (".gk", suffix
, NULL
);
5411 /* If -save-temps=obj and -o were specified, use that for the
5413 if (save_temps_length
)
5416 temp_filename_length
5417 = save_temps_length
+ suffix_length
+ 1;
5418 tmp
= (char *) alloca (temp_filename_length
);
5419 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5420 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5421 tmp
[save_temps_length
+ suffix_length
] = '\0';
5422 temp_filename
= save_string (tmp
,
5423 temp_filename_length
+ 1);
5424 obstack_grow (&obstack
, temp_filename
,
5425 temp_filename_length
);
5427 delete_this_arg
= 0;
5431 /* If the input_filename has the same suffix specified
5432 for the %g, %u, or %U, and -save-temps is specified,
5433 we could end up using that file as an intermediate
5434 thus clobbering the user's source file (.e.g.,
5435 gcc -save-temps foo.s would clobber foo.s with the
5436 output of cpp0). So check for this condition and
5437 generate a temp file as the intermediate. */
5439 if (save_temps_flag
)
5442 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5443 tmp
= (char *) alloca (temp_filename_length
);
5444 memcpy (tmp
, input_basename
, basename_length
);
5445 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5446 tmp
[basename_length
+ suffix_length
] = '\0';
5447 temp_filename
= tmp
;
5449 if (strcmp (temp_filename
, input_filename
) != 0)
5451 #ifndef HOST_LACKS_INODE_NUMBERS
5452 struct stat st_temp
;
5454 /* Note, set_input() resets input_stat_set to 0. */
5455 if (input_stat_set
== 0)
5457 input_stat_set
= stat (input_filename
, &input_stat
);
5458 if (input_stat_set
>= 0)
5462 /* If we have the stat for the input_filename
5463 and we can do the stat for the temp_filename
5464 then the they could still refer to the same
5465 file if st_dev/st_ino's are the same. */
5466 if (input_stat_set
!= 1
5467 || stat (temp_filename
, &st_temp
) < 0
5468 || input_stat
.st_dev
!= st_temp
.st_dev
5469 || input_stat
.st_ino
!= st_temp
.st_ino
)
5471 /* Just compare canonical pathnames. */
5472 char* input_realname
= lrealpath (input_filename
);
5473 char* temp_realname
= lrealpath (temp_filename
);
5474 bool files_differ
= strcmp (input_realname
, temp_realname
);
5475 free (input_realname
);
5476 free (temp_realname
);
5480 temp_filename
= save_string (temp_filename
,
5481 temp_filename_length
+ 1);
5482 obstack_grow (&obstack
, temp_filename
,
5483 temp_filename_length
);
5485 delete_this_arg
= 0;
5491 /* See if we already have an association of %g/%u/%U and
5493 for (t
= temp_names
; t
; t
= t
->next
)
5494 if (t
->length
== suffix_length
5495 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5496 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5499 /* Make a new association if needed. %u and %j
5501 if (t
== 0 || c
== 'u' || c
== 'j')
5505 t
= XNEW (struct temp_name
);
5506 t
->next
= temp_names
;
5509 t
->length
= suffix_length
;
5512 t
->suffix
= saved_suffix
;
5513 saved_suffix
= NULL
;
5516 t
->suffix
= save_string (suffix
, suffix_length
);
5517 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5518 temp_filename
= make_temp_file (t
->suffix
);
5519 temp_filename_length
= strlen (temp_filename
);
5520 t
->filename
= temp_filename
;
5521 t
->filename_length
= temp_filename_length
;
5525 free (saved_suffix
);
5527 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5528 delete_this_arg
= 1;
5536 if (at_file_supplied
)
5538 /* We are going to expand `%i' to `@FILE', where FILE
5539 is a newly-created temporary filename. The filenames
5540 that would usually be expanded in place of %o will be
5541 written to the temporary file. */
5546 for (i
= 0; i
< n_infiles
; i
++)
5547 if (compile_input_file_p (&infiles
[i
]))
5550 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5552 /* Copy the strings over. */
5553 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5554 if (compile_input_file_p (&infiles
[i
]))
5556 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5557 infiles
[i
].compiled
= true;
5562 create_at_file (argv
);
5565 for (i
= 0; (int) i
< n_infiles
; i
++)
5566 if (compile_input_file_p (&infiles
[i
]))
5568 store_arg (infiles
[i
].name
, 0, 0);
5569 infiles
[i
].compiled
= true;
5574 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5581 struct spec_path_info info
;
5585 do_spec_1 ("-imultilib", 1, NULL
);
5586 /* Make this a separate argument. */
5587 do_spec_1 (" ", 0, NULL
);
5588 do_spec_1 (multilib_dir
, 1, NULL
);
5589 do_spec_1 (" ", 0, NULL
);
5592 if (gcc_exec_prefix
)
5594 do_spec_1 ("-iprefix", 1, NULL
);
5595 /* Make this a separate argument. */
5596 do_spec_1 (" ", 0, NULL
);
5597 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5598 do_spec_1 (" ", 0, NULL
);
5601 if (target_system_root_changed
||
5602 (target_system_root
&& target_sysroot_hdrs_suffix
))
5604 do_spec_1 ("-isysroot", 1, NULL
);
5605 /* Make this a separate argument. */
5606 do_spec_1 (" ", 0, NULL
);
5607 do_spec_1 (target_system_root
, 1, NULL
);
5608 if (target_sysroot_hdrs_suffix
)
5609 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5610 do_spec_1 (" ", 0, NULL
);
5613 info
.option
= "-isystem";
5614 info
.append
= "include";
5615 info
.append_len
= strlen (info
.append
);
5616 info
.omit_relative
= false;
5617 info
.separate_options
= true;
5619 for_each_path (&include_prefixes
, false, info
.append_len
,
5622 info
.append
= "include-fixed";
5623 if (*sysroot_hdrs_suffix_spec
)
5624 info
.append
= concat (info
.append
, dir_separator_str
,
5625 multilib_dir
, NULL
);
5626 info
.append_len
= strlen (info
.append
);
5627 for_each_path (&include_prefixes
, false, info
.append_len
,
5634 int max
= n_infiles
;
5635 max
+= lang_specific_extra_outfiles
;
5637 if (HAVE_GNU_LD
&& at_file_supplied
)
5639 /* We are going to expand `%o' to `@FILE', where FILE
5640 is a newly-created temporary filename. The filenames
5641 that would usually be expanded in place of %o will be
5642 written to the temporary file. */
5647 /* Convert OUTFILES into a form suitable for writeargv. */
5649 /* Determine how many are non-NULL. */
5650 for (n_files
= 0, i
= 0; i
< max
; i
++)
5651 n_files
+= outfiles
[i
] != NULL
;
5653 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5655 /* Copy the strings over. */
5656 for (i
= 0, j
= 0; i
< max
; i
++)
5659 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5664 create_at_file (argv
);
5667 for (i
= 0; i
< max
; i
++)
5669 store_arg (outfiles
[i
], 0, 0);
5674 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5679 this_is_library_file
= 1;
5683 this_is_linker_script
= 1;
5687 outfiles
[input_file_number
] = NULL
;
5691 this_is_output_file
= 1;
5696 int cur_index
= argbuf_index
;
5697 /* Handle the {...} following the %W. */
5699 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5700 p
= handle_braces (p
+ 1);
5704 /* If any args were output, mark the last one for deletion
5706 if (argbuf_index
!= cur_index
)
5707 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5711 /* %x{OPTION} records OPTION for %X to output. */
5717 /* Skip past the option value and make a copy. */
5719 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5722 string
= save_string (p1
+ 1, p
- p1
- 2);
5724 /* See if we already recorded this option. */
5725 for (i
= 0; i
< n_linker_options
; i
++)
5726 if (! strcmp (string
, linker_options
[i
]))
5732 /* This option is new; add it. */
5733 add_linker_option (string
, strlen (string
));
5737 /* Dump out the options accumulated previously using %x. */
5739 for (i
= 0; i
< n_linker_options
; i
++)
5741 do_spec_1 (linker_options
[i
], 1, NULL
);
5742 /* Make each accumulated option a separate argument. */
5743 do_spec_1 (" ", 0, NULL
);
5747 /* Dump out the options accumulated previously using -Wa,. */
5749 for (i
= 0; i
< n_assembler_options
; i
++)
5751 do_spec_1 (assembler_options
[i
], 1, NULL
);
5752 /* Make each accumulated option a separate argument. */
5753 do_spec_1 (" ", 0, NULL
);
5757 /* Dump out the options accumulated previously using -Wp,. */
5759 for (i
= 0; i
< n_preprocessor_options
; i
++)
5761 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5762 /* Make each accumulated option a separate argument. */
5763 do_spec_1 (" ", 0, NULL
);
5767 /* Here are digits and numbers that just process
5768 a certain constant string as a spec. */
5771 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5777 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5783 value
= do_spec_1 (asm_spec
, 0, NULL
);
5789 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5796 const char *const spec
5797 = (input_file_compiler
->cpp_spec
5798 ? input_file_compiler
->cpp_spec
5800 value
= do_spec_1 (spec
, 0, NULL
);
5807 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5813 value
= do_spec_1 (link_spec
, 0, NULL
);
5819 value
= do_spec_1 (lib_spec
, 0, NULL
);
5825 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5831 /* We assume there is a directory
5832 separator at the end of this string. */
5833 if (target_system_root
)
5835 obstack_grow (&obstack
, target_system_root
,
5836 strlen (target_system_root
));
5837 if (target_sysroot_suffix
)
5838 obstack_grow (&obstack
, target_sysroot_suffix
,
5839 strlen (target_sysroot_suffix
));
5844 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5849 /* Here we define characters other than letters and digits. */
5852 p
= handle_braces (p
);
5858 p
= handle_spec_function (p
);
5864 obstack_1grow (&obstack
, '%');
5871 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5873 suffix_subst
= save_string (p
- 1, len
+ 1);
5878 /* Henceforth ignore the option(s) matching the pattern
5883 int have_wildcard
= 0;
5886 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5889 if (p
[len
-1] == '*')
5892 for (i
= 0; i
< n_switches
; i
++)
5893 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5894 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5896 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5897 switches
[i
].validated
= 1;
5905 if (soft_matched_part
)
5907 do_spec_1 (soft_matched_part
, 1, NULL
);
5908 do_spec_1 (" ", 0, NULL
);
5911 /* Catch the case where a spec string contains something like
5912 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5913 hand side of the :. */
5914 error ("spec failure: '%%*' has not been initialized by pattern match");
5917 /* Process a string found as the value of a spec given by name.
5918 This feature allows individual machine descriptions
5919 to add and use their own specs.
5920 %[...] modifies -D options the way %P does;
5921 %(...) uses the spec unmodified. */
5923 error ("warning: use of obsolete %%[ operator in specs");
5926 const char *name
= p
;
5927 struct spec_list
*sl
;
5930 /* The string after the S/P is the name of a spec that is to be
5932 while (*p
&& *p
!= ')' && *p
!= ']')
5935 /* See if it's in the list. */
5936 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5937 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5939 name
= *(sl
->ptr_spec
);
5941 notice ("Processing spec %c%s%c, which is '%s'\n",
5942 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5951 value
= do_spec_1 (name
, 0, NULL
);
5957 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5959 const char *y
= name
;
5962 /* Copy all of NAME into BUF, but put __ after
5963 every -D and at the end of each arg. */
5966 if (! strncmp (y
, "-D", 2))
5977 && (*y
== ' ' || *y
== '\t' || *y
== '='
5978 || *y
== '}' || *y
== 0))
5991 value
= do_spec_1 (buf
, 0, NULL
);
5997 /* Discard the closing paren or bracket. */
6004 error ("spec failure: unrecognized spec option '%c'", c
);
6010 /* Backslash: treat next character as ordinary. */
6015 /* Ordinary character: put it into the current argument. */
6016 obstack_1grow (&obstack
, c
);
6020 /* End of string. If we are processing a spec function, we need to
6021 end any pending argument. */
6022 if (processing_spec_function
)
6028 /* Look up a spec function. */
6030 static const struct spec_function
*
6031 lookup_spec_function (const char *name
)
6033 const struct spec_function
*sf
;
6035 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6036 if (strcmp (sf
->name
, name
) == 0)
6042 /* Evaluate a spec function. */
6045 eval_spec_function (const char *func
, const char *args
)
6047 const struct spec_function
*sf
;
6048 const char *funcval
;
6050 /* Saved spec processing context. */
6051 int save_argbuf_index
;
6052 int save_argbuf_length
;
6053 const char **save_argbuf
;
6056 int save_delete_this_arg
;
6057 int save_this_is_output_file
;
6058 int save_this_is_library_file
;
6059 int save_input_from_pipe
;
6060 int save_this_is_linker_script
;
6061 const char *save_suffix_subst
;
6064 sf
= lookup_spec_function (func
);
6066 fatal ("unknown spec function '%s'", func
);
6068 /* Push the spec processing context. */
6069 save_argbuf_index
= argbuf_index
;
6070 save_argbuf_length
= argbuf_length
;
6071 save_argbuf
= argbuf
;
6073 save_arg_going
= arg_going
;
6074 save_delete_this_arg
= delete_this_arg
;
6075 save_this_is_output_file
= this_is_output_file
;
6076 save_this_is_library_file
= this_is_library_file
;
6077 save_this_is_linker_script
= this_is_linker_script
;
6078 save_input_from_pipe
= input_from_pipe
;
6079 save_suffix_subst
= suffix_subst
;
6081 /* Create a new spec processing context, and build the function
6085 if (do_spec_2 (args
) < 0)
6086 fatal ("error in args to spec function '%s'", func
);
6088 /* argbuf_index is an index for the next argument to be inserted, and
6089 so contains the count of the args already inserted. */
6091 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
6093 /* Pop the spec processing context. */
6094 argbuf_index
= save_argbuf_index
;
6095 argbuf_length
= save_argbuf_length
;
6097 argbuf
= save_argbuf
;
6099 arg_going
= save_arg_going
;
6100 delete_this_arg
= save_delete_this_arg
;
6101 this_is_output_file
= save_this_is_output_file
;
6102 this_is_library_file
= save_this_is_library_file
;
6103 this_is_linker_script
= save_this_is_linker_script
;
6104 input_from_pipe
= save_input_from_pipe
;
6105 suffix_subst
= save_suffix_subst
;
6110 /* Handle a spec function call of the form:
6114 ARGS is processed as a spec in a separate context and split into an
6115 argument vector in the normal fashion. The function returns a string
6116 containing a spec which we then process in the caller's context, or
6117 NULL if no processing is required. */
6120 handle_spec_function (const char *p
)
6123 const char *endp
, *funcval
;
6126 processing_spec_function
++;
6128 /* Get the function name. */
6129 for (endp
= p
; *endp
!= '\0'; endp
++)
6131 if (*endp
== '(') /* ) */
6133 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6134 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6135 fatal ("malformed spec function name");
6137 if (*endp
!= '(') /* ) */
6138 fatal ("no arguments for spec function");
6139 func
= save_string (p
, endp
- p
);
6142 /* Get the arguments. */
6143 for (count
= 0; *endp
!= '\0'; endp
++)
6152 else if (*endp
== '(') /* ) */
6157 fatal ("malformed spec function arguments");
6158 args
= save_string (p
, endp
- p
);
6161 /* p now points to just past the end of the spec function expression. */
6163 funcval
= eval_spec_function (func
, args
);
6164 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6170 processing_spec_function
--;
6175 /* Inline subroutine of handle_braces. Returns true if the current
6176 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6178 input_suffix_matches (const char *atom
, const char *end_atom
)
6180 return (input_suffix
6181 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6182 && input_suffix
[end_atom
- atom
] == '\0');
6185 /* Subroutine of handle_braces. Returns true if the current
6186 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6188 input_spec_matches (const char *atom
, const char *end_atom
)
6190 return (input_file_compiler
6191 && input_file_compiler
->suffix
6192 && input_file_compiler
->suffix
[0] != '\0'
6193 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6195 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6198 /* Subroutine of handle_braces. Returns true if a switch
6199 matching the atom bracketed by ATOM and END_ATOM appeared on the
6202 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6205 int len
= end_atom
- atom
;
6206 int plen
= starred
? len
: -1;
6208 for (i
= 0; i
< n_switches
; i
++)
6209 if (!strncmp (switches
[i
].part1
, atom
, len
)
6210 && (starred
|| switches
[i
].part1
[len
] == '\0')
6211 && check_live_switch (i
, plen
))
6217 /* Inline subroutine of handle_braces. Mark all of the switches which
6218 match ATOM (extends to END_ATOM; STARRED indicates whether there
6219 was a star after the atom) for later processing. */
6221 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6224 int len
= end_atom
- atom
;
6225 int plen
= starred
? len
: -1;
6227 for (i
= 0; i
< n_switches
; i
++)
6228 if (!strncmp (switches
[i
].part1
, atom
, len
)
6229 && (starred
|| switches
[i
].part1
[len
] == '\0')
6230 && check_live_switch (i
, plen
))
6231 switches
[i
].ordering
= 1;
6234 /* Inline subroutine of handle_braces. Process all the currently
6235 marked switches through give_switch, and clear the marks. */
6237 process_marked_switches (void)
6241 for (i
= 0; i
< n_switches
; i
++)
6242 if (switches
[i
].ordering
== 1)
6244 switches
[i
].ordering
= 0;
6249 /* Handle a %{ ... } construct. P points just inside the leading {.
6250 Returns a pointer one past the end of the brace block, or 0
6251 if we call do_spec_1 and that returns -1. */
6254 handle_braces (const char *p
)
6256 const char *atom
, *end_atom
;
6257 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6258 const char *orig
= p
;
6266 bool a_must_be_last
= false;
6267 bool ordered_set
= false;
6268 bool disjunct_set
= false;
6269 bool disj_matched
= false;
6270 bool disj_starred
= true;
6271 bool n_way_choice
= false;
6272 bool n_way_matched
= false;
6274 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6281 /* Scan one "atom" (S in the description above of %{}, possibly
6282 with '!', '.', '@', ',', or '*' modifiers). */
6284 a_is_suffix
= false;
6285 a_is_starred
= false;
6286 a_is_negated
= false;
6287 a_is_spectype
= false;
6291 p
++, a_is_negated
= true;
6295 p
++, a_is_suffix
= true;
6297 p
++, a_is_spectype
= true;
6300 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
6301 || *p
== ',' || *p
== '.' || *p
== '@')
6306 p
++, a_is_starred
= 1;
6312 /* Substitute the switch(es) indicated by the current atom. */
6314 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6315 || a_is_spectype
|| atom
== end_atom
)
6318 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6321 process_marked_switches ();
6325 /* Substitute some text if the current atom appears as a switch
6327 disjunct_set
= true;
6331 if (atom
== end_atom
)
6333 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6334 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6338 /* An empty term may appear as the last choice of an
6339 N-way choice set; it means "otherwise". */
6340 a_must_be_last
= true;
6341 disj_matched
= !n_way_matched
;
6342 disj_starred
= false;
6346 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6350 disj_starred
= false;
6352 /* Don't bother testing this atom if we already have a
6354 if (!disj_matched
&& !n_way_matched
)
6357 a_matched
= input_suffix_matches (atom
, end_atom
);
6358 else if (a_is_spectype
)
6359 a_matched
= input_spec_matches (atom
, end_atom
);
6361 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6363 if (a_matched
!= a_is_negated
)
6365 disj_matched
= true;
6367 d_end_atom
= end_atom
;
6374 /* Found the body, that is, the text to substitute if the
6375 current disjunction matches. */
6376 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6377 disj_matched
&& !n_way_matched
);
6381 /* If we have an N-way choice, reset state for the next
6385 n_way_choice
= true;
6386 n_way_matched
|= disj_matched
;
6387 disj_matched
= false;
6388 disj_starred
= true;
6389 d_atom
= d_end_atom
= NULL
;
6398 while (*p
++ != '}');
6403 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
6408 /* Subroutine of handle_braces. Scan and process a brace substitution body
6409 (X in the description of %{} syntax). P points one past the colon;
6410 ATOM and END_ATOM bracket the first atom which was found to be true
6411 (present) in the current disjunction; STARRED indicates whether all
6412 the atoms in the current disjunction were starred (for syntax validation);
6413 MATCHED indicates whether the disjunction matched or not, and therefore
6414 whether or not the body is to be processed through do_spec_1 or just
6415 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6419 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6420 int starred
, int matched
)
6422 const char *body
, *end_body
;
6423 unsigned int nesting_level
;
6424 bool have_subst
= false;
6426 /* Locate the closing } or ;, honoring nested braces.
6427 Trim trailing whitespace. */
6436 if (!--nesting_level
)
6439 else if (*p
== ';' && nesting_level
== 1)
6441 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6443 else if (*p
== '\0')
6449 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6452 if (have_subst
&& !starred
)
6457 /* Copy the substitution body to permanent storage and execute it.
6458 If have_subst is false, this is a simple matter of running the
6459 body through do_spec_1... */
6460 char *string
= save_string (body
, end_body
- body
);
6463 if (do_spec_1 (string
, 0, NULL
) < 0)
6468 /* ... but if have_subst is true, we have to process the
6469 body once for each matching switch, with %* set to the
6470 variant part of the switch. */
6471 unsigned int hard_match_len
= end_atom
- atom
;
6474 for (i
= 0; i
< n_switches
; i
++)
6475 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6476 && check_live_switch (i
, hard_match_len
))
6478 if (do_spec_1 (string
, 0,
6479 &switches
[i
].part1
[hard_match_len
]) < 0)
6481 /* Pass any arguments this switch has. */
6483 suffix_subst
= NULL
;
6491 fatal ("braced spec body '%s' is invalid", body
);
6494 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6495 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6496 spec, or -1 if either exact match or %* is used.
6498 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6499 whose value does not begin with "no-" is obsoleted by the same value
6500 with the "no-", similarly for a switch with the "no-" prefix. */
6503 check_live_switch (int switchnum
, int prefix_length
)
6505 const char *name
= switches
[switchnum
].part1
;
6508 /* If we already processed this switch and determined if it was
6509 live or not, return our past determination. */
6510 if (switches
[switchnum
].live_cond
!= 0)
6511 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6512 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6513 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE
) == 0);
6515 /* In the common case of {<at-most-one-letter>*}, a negating
6516 switch would always match, so ignore that case. We will just
6517 send the conflicting switches to the compiler phase. */
6518 if (prefix_length
>= 0 && prefix_length
<= 1)
6521 /* Now search for duplicate in a manner that depends on the name. */
6525 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6526 if (switches
[i
].part1
[0] == 'O')
6528 switches
[switchnum
].validated
= 1;
6529 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6534 case 'W': case 'f': case 'm':
6535 if (! strncmp (name
+ 1, "no-", 3))
6537 /* We have Xno-YYY, search for XYYY. */
6538 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6539 if (switches
[i
].part1
[0] == name
[0]
6540 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6542 switches
[switchnum
].validated
= 1;
6543 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6549 /* We have XYYY, search for Xno-YYY. */
6550 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6551 if (switches
[i
].part1
[0] == name
[0]
6552 && switches
[i
].part1
[1] == 'n'
6553 && switches
[i
].part1
[2] == 'o'
6554 && switches
[i
].part1
[3] == '-'
6555 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6557 switches
[switchnum
].validated
= 1;
6558 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6565 /* Otherwise the switch is live. */
6566 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6570 /* Pass a switch to the current accumulating command
6571 in the same form that we received it.
6572 SWITCHNUM identifies the switch; it is an index into
6573 the vector of switches gcc received, which is `switches'.
6574 This cannot fail since it never finishes a command line.
6576 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6579 give_switch (int switchnum
, int omit_first_word
)
6581 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6584 if (!omit_first_word
)
6586 do_spec_1 ("-", 0, NULL
);
6587 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6590 if (switches
[switchnum
].args
!= 0)
6593 for (p
= switches
[switchnum
].args
; *p
; p
++)
6595 const char *arg
= *p
;
6597 do_spec_1 (" ", 0, NULL
);
6600 unsigned length
= strlen (arg
);
6603 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6604 if (arg
[length
] == '.')
6606 (CONST_CAST(char *, arg
))[length
] = 0;
6610 do_spec_1 (arg
, 1, NULL
);
6612 (CONST_CAST(char *, arg
))[length
] = '.';
6613 do_spec_1 (suffix_subst
, 1, NULL
);
6616 do_spec_1 (arg
, 1, NULL
);
6620 do_spec_1 (" ", 0, NULL
);
6621 switches
[switchnum
].validated
= 1;
6624 /* Search for a file named NAME trying various prefixes including the
6625 user's -B prefix and some standard ones.
6626 Return the absolute file name found. If nothing is found, return NAME. */
6629 find_file (const char *name
)
6631 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6632 return newname
? newname
: name
;
6635 /* Determine whether a directory exists. If LINKER, return 0 for
6636 certain fixed names not needed by the linker. */
6639 is_directory (const char *path1
, bool linker
)
6646 /* Ensure the string ends with "/.". The resulting path will be a
6647 directory even if the given path is a symbolic link. */
6648 len1
= strlen (path1
);
6649 path
= (char *) alloca (3 + len1
);
6650 memcpy (path
, path1
, len1
);
6652 if (!IS_DIR_SEPARATOR (cp
[-1]))
6653 *cp
++ = DIR_SEPARATOR
;
6657 /* Exclude directories that the linker is known to search. */
6659 && IS_DIR_SEPARATOR (path
[0])
6661 && strncmp (path
+ 1, "lib", 3) == 0)
6663 && strncmp (path
+ 1, "usr", 3) == 0
6664 && IS_DIR_SEPARATOR (path
[4])
6665 && strncmp (path
+ 5, "lib", 3) == 0)))
6668 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6671 /* Set up the various global variables to indicate that we're processing
6672 the input file named FILENAME. */
6675 set_input (const char *filename
)
6679 input_filename
= filename
;
6680 input_filename_length
= strlen (input_filename
);
6681 input_basename
= lbasename (input_filename
);
6683 /* Find a suffix starting with the last period,
6684 and set basename_length to exclude that suffix. */
6685 basename_length
= strlen (input_basename
);
6686 suffixed_basename_length
= basename_length
;
6687 p
= input_basename
+ basename_length
;
6688 while (p
!= input_basename
&& *p
!= '.')
6690 if (*p
== '.' && p
!= input_basename
)
6692 basename_length
= p
- input_basename
;
6693 input_suffix
= p
+ 1;
6698 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6699 we will need to do a stat on the input_filename. The
6700 INPUT_STAT_SET signals that the stat is needed. */
6704 /* On fatal signals, delete all the temporary files. */
6707 fatal_error (int signum
)
6709 signal (signum
, SIG_DFL
);
6710 delete_failure_queue ();
6711 delete_temp_files ();
6712 /* Get the same signal again, this time not handled,
6713 so its normal effect occurs. */
6714 kill (getpid (), signum
);
6717 /* Compare the contents of the two files named CMPFILE[0] and
6718 CMPFILE[1]. Return zero if they're identical, nonzero
6722 compare_files (char *cmpfile
[])
6725 FILE *temp
[2] = { NULL
, NULL
};
6731 void *map
[2] = { NULL
, NULL
};
6733 for (i
= 0; i
< 2; i
++)
6737 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6739 error ("%s: could not determine length of compare-debug file %s",
6740 input_filename
, cmpfile
[i
]);
6745 length
[i
] = st
.st_size
;
6748 if (!ret
&& length
[0] != length
[1])
6750 error ("%s: -fcompare-debug failure (length)", input_filename
);
6755 for (i
= 0; i
< 2; i
++)
6757 int fd
= open (cmpfile
[i
], O_RDONLY
);
6760 error ("%s: could not open compare-debug file %s",
6761 input_filename
, cmpfile
[i
]);
6766 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6769 if (map
[i
] == (void *) MAP_FAILED
)
6778 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6780 error ("%s: -fcompare-debug failure", input_filename
);
6785 for (i
= 0; i
< 2; i
++)
6787 munmap ((caddr_t
) map
[i
], length
[i
]);
6796 for (i
= 0; i
< 2; i
++)
6798 temp
[i
] = fopen (cmpfile
[i
], "r");
6801 error ("%s: could not open compare-debug file %s",
6802 input_filename
, cmpfile
[i
]);
6808 if (!ret
&& temp
[0] && temp
[1])
6812 c0
= fgetc (temp
[0]);
6813 c1
= fgetc (temp
[1]);
6817 error ("%s: -fcompare-debug failure",
6827 for (i
= 1; i
>= 0; i
--)
6836 extern int main (int, char **);
6839 main (int argc
, char **argv
)
6843 int linker_was_run
= 0;
6844 int lang_n_infiles
= 0;
6845 int num_linker_inputs
= 0;
6846 char *explicit_link_files
;
6849 struct user_specs
*uptr
;
6850 char **old_argv
= argv
;
6852 /* Add ICI_LIBS options */
6853 add_plugin_libs(&argc
, (const char *const **) &argv
);
6856 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6857 on ?: in file-scope variable initializations. */
6858 asm_debug
= ASM_DEBUG_SPEC
;
6860 p
= argv
[0] + strlen (argv
[0]);
6861 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6865 xmalloc_set_program_name (programname
);
6867 expandargv (&argc
, &argv
);
6869 /* Determine if any expansions were made. */
6870 if (argv
!= old_argv
)
6871 at_file_supplied
= true;
6873 prune_options (&argc
, &argv
);
6875 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6876 /* Perform host dependent initialization when needed. */
6877 GCC_DRIVER_HOST_INITIALIZATION
;
6880 /* Unlock the stdio streams. */
6881 unlock_std_streams ();
6883 gcc_init_libintl ();
6885 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6886 signal (SIGINT
, fatal_error
);
6888 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6889 signal (SIGHUP
, fatal_error
);
6891 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6892 signal (SIGTERM
, fatal_error
);
6894 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6895 signal (SIGPIPE
, fatal_error
);
6898 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6899 receive the signal. A different setting is inheritable */
6900 signal (SIGCHLD
, SIG_DFL
);
6903 /* Allocate the argument vector. */
6906 obstack_init (&obstack
);
6908 /* Build multilib_select, et. al from the separate lines that make up each
6909 multilib selection. */
6911 const char *const *q
= multilib_raw
;
6914 obstack_init (&multilib_obstack
);
6915 while ((p
= *q
++) != (char *) 0)
6916 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6918 obstack_1grow (&multilib_obstack
, 0);
6919 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6921 q
= multilib_matches_raw
;
6922 while ((p
= *q
++) != (char *) 0)
6923 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6925 obstack_1grow (&multilib_obstack
, 0);
6926 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6928 q
= multilib_exclusions_raw
;
6929 while ((p
= *q
++) != (char *) 0)
6930 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6932 obstack_1grow (&multilib_obstack
, 0);
6933 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6936 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6939 obstack_1grow (&multilib_obstack
, ' ');
6940 obstack_grow (&multilib_obstack
,
6941 multilib_defaults_raw
[i
],
6942 strlen (multilib_defaults_raw
[i
]));
6946 obstack_1grow (&multilib_obstack
, 0);
6947 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6950 #ifdef INIT_ENVIRONMENT
6951 /* Set up any other necessary machine specific environment variables. */
6952 xputenv (INIT_ENVIRONMENT
);
6955 /* Make a table of what switches there are (switches, n_switches).
6956 Make a table of specified input files (infiles, n_infiles).
6957 Decode switches that are handled locally. */
6959 process_command (argc
, CONST_CAST2 (const char **, char **, argv
));
6961 /* Initialize the vector of specs to just the default.
6962 This means one element containing 0s, as a terminator. */
6964 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6965 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6966 n_compilers
= n_default_compilers
;
6968 /* Read specs from a file if there is one. */
6970 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6971 spec_version
, dir_separator_str
, NULL
);
6972 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6974 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6975 /* Read the specs file unless it is a default one. */
6976 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6977 read_specs (specs_file
, TRUE
);
6981 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6982 for any override of as, ld and libraries. */
6983 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6984 + strlen (just_machine_suffix
) + sizeof ("specs"));
6986 strcpy (specs_file
, standard_exec_prefix
);
6987 strcat (specs_file
, just_machine_suffix
);
6988 strcat (specs_file
, "specs");
6989 if (access (specs_file
, R_OK
) == 0)
6990 read_specs (specs_file
, TRUE
);
6992 /* Process any configure-time defaults specified for the command line
6993 options, via OPTION_DEFAULT_SPECS. */
6994 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6995 do_option_spec (option_default_specs
[i
].name
,
6996 option_default_specs
[i
].spec
);
6998 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6999 of the command line. */
7001 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7002 do_self_spec (driver_self_specs
[i
]);
7006 enum save_temps save
;
7008 if (!compare_debug_second
)
7010 n_switches_debug_check
[1] = n_switches
;
7011 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7014 do_self_spec ("%:compare-debug-self-opt()");
7015 n_switches_debug_check
[0] = n_switches
;
7016 switches_debug_check
[0] = switches
;
7018 n_switches
= n_switches_debug_check
[1];
7019 switches
= switches_debug_check
[1];
7022 /* Avoid crash when computing %j in this early. */
7023 save
= save_temps_flag
;
7024 save_temps_flag
= SAVE_TEMPS_NONE
;
7026 compare_debug
= -compare_debug
;
7027 do_self_spec ("%:compare-debug-self-opt()");
7029 save_temps_flag
= save
;
7031 if (!compare_debug_second
)
7033 n_switches_debug_check
[1] = n_switches
;
7034 switches_debug_check
[1] = switches
;
7035 compare_debug
= -compare_debug
;
7036 n_switches
= n_switches_debug_check
[0];
7037 switches
= switches_debug_check
[0];
7041 /* If not cross-compiling, look for executables in the standard
7043 if (*cross_compile
== '0')
7045 if (*md_exec_prefix
)
7047 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7048 PREFIX_PRIORITY_LAST
, 0, 0);
7052 /* Process sysroot_suffix_spec. */
7053 if (*sysroot_suffix_spec
!= 0
7054 && do_spec_2 (sysroot_suffix_spec
) == 0)
7056 if (argbuf_index
> 1)
7057 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7058 else if (argbuf_index
== 1)
7059 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
7062 #ifdef HAVE_LD_SYSROOT
7063 /* Pass the --sysroot option to the linker, if it supports that. If
7064 there is a sysroot_suffix_spec, it has already been processed by
7065 this point, so target_system_root really is the system root we
7067 if (target_system_root
)
7069 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7070 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7071 set_spec ("link", XOBFINISH (&obstack
, const char *));
7075 /* Process sysroot_hdrs_suffix_spec. */
7076 if (*sysroot_hdrs_suffix_spec
!= 0
7077 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7079 if (argbuf_index
> 1)
7080 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7081 else if (argbuf_index
== 1)
7082 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
7085 /* Look for startfiles in the standard places. */
7086 if (*startfile_prefix_spec
!= 0
7087 && do_spec_2 (startfile_prefix_spec
) == 0
7088 && do_spec_1 (" ", 0, NULL
) == 0)
7091 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
7092 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
7093 PREFIX_PRIORITY_LAST
, 0, 1);
7095 /* We should eventually get rid of all these and stick to
7096 startfile_prefix_spec exclusively. */
7097 else if (*cross_compile
== '0' || target_system_root
)
7099 if (*md_startfile_prefix
)
7100 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7101 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7103 if (*md_startfile_prefix_1
)
7104 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7105 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7107 /* If standard_startfile_prefix is relative, base it on
7108 standard_exec_prefix. This lets us move the installed tree
7109 as a unit. If GCC_EXEC_PREFIX is defined, base
7110 standard_startfile_prefix on that as well.
7112 If the prefix is relative, only search it for native compilers;
7113 otherwise we will search a directory containing host libraries. */
7114 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7115 add_sysrooted_prefix (&startfile_prefixes
,
7116 standard_startfile_prefix
, "BINUTILS",
7117 PREFIX_PRIORITY_LAST
, 0, 1);
7118 else if (*cross_compile
== '0')
7120 add_prefix (&startfile_prefixes
,
7121 concat (gcc_exec_prefix
7122 ? gcc_exec_prefix
: standard_exec_prefix
,
7124 standard_startfile_prefix
, NULL
),
7125 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7128 /* Sysrooted prefixes are relocated because target_system_root is
7129 also relocated by gcc_exec_prefix. */
7130 if (*standard_startfile_prefix_1
)
7131 add_sysrooted_prefix (&startfile_prefixes
,
7132 standard_startfile_prefix_1
, "BINUTILS",
7133 PREFIX_PRIORITY_LAST
, 0, 1);
7134 if (*standard_startfile_prefix_2
)
7135 add_sysrooted_prefix (&startfile_prefixes
,
7136 standard_startfile_prefix_2
, "BINUTILS",
7137 PREFIX_PRIORITY_LAST
, 0, 1);
7140 /* Process any user specified specs in the order given on the command
7142 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7144 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7146 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
7149 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7150 if (gcc_exec_prefix
)
7151 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
7152 spec_version
, dir_separator_str
, NULL
);
7154 /* Now we have the specs.
7155 Set the `valid' bits for switches that match anything in any spec. */
7157 validate_all_switches ();
7159 /* Now that we have the switches and the specs, set
7160 the subdirectory based on the options. */
7161 set_multilib_dir ();
7163 /* Set up to remember the pathname of gcc and any options
7164 needed for collect. We use argv[0] instead of programname because
7165 we need the complete pathname. */
7166 obstack_init (&collect_obstack
);
7167 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7168 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
7169 xputenv (XOBFINISH (&collect_obstack
, char *));
7171 /* Set up to remember the pathname of the lto wrapper. */
7173 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
7174 if (lto_wrapper_spec
)
7176 obstack_init (&collect_obstack
);
7177 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7178 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7179 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7180 strlen (lto_wrapper_spec
) + 1);
7181 xputenv (XOBFINISH (&collect_obstack
, char *));
7184 /* Warn about any switches that no pass was interested in. */
7186 for (i
= 0; (int) i
< n_switches
; i
++)
7187 if (! switches
[i
].validated
)
7188 error ("unrecognized option '-%s'", switches
[i
].part1
);
7190 /* Obey some of the options. */
7192 if (print_search_dirs
)
7194 printf (_("install: %s%s\n"),
7195 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7196 gcc_exec_prefix
? "" : machine_suffix
);
7197 printf (_("programs: %s\n"),
7198 build_search_list (&exec_prefixes
, "", false, false));
7199 printf (_("libraries: %s\n"),
7200 build_search_list (&startfile_prefixes
, "", false, true));
7204 if (print_file_name
)
7206 printf ("%s\n", find_file (print_file_name
));
7210 if (print_prog_name
)
7212 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7213 printf ("%s\n", (newname
? newname
: print_prog_name
));
7217 if (print_multi_lib
)
7219 print_multilib_info ();
7223 if (print_multi_directory
)
7225 if (multilib_dir
== NULL
)
7228 printf ("%s\n", multilib_dir
);
7234 if (target_system_root
)
7236 if (target_sysroot_suffix
)
7237 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7239 printf ("%s\n", target_system_root
);
7244 if (print_multi_os_directory
)
7246 if (multilib_os_dir
== NULL
)
7249 printf ("%s\n", multilib_os_dir
);
7253 if (print_sysroot_headers_suffix
)
7255 if (*sysroot_hdrs_suffix_spec
)
7257 printf("%s\n", (target_sysroot_hdrs_suffix
7258 ? target_sysroot_hdrs_suffix
7263 /* The error status indicates that only one set of fixed
7264 headers should be built. */
7265 fatal ("not configured with sysroot headers suffix");
7268 if (print_help_list
)
7274 printf (_("\nFor bug reporting instructions, please see:\n"));
7275 printf ("%s.\n", bug_report_url
);
7280 /* We do not exit here. Instead we have created a fake input file
7281 called 'help-dummy' which needs to be compiled, and we pass this
7282 on the various sub-processes, along with the --help switch.
7283 Ensure their output appears after ours. */
7284 fputc ('\n', stdout
);
7290 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
7292 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7294 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7295 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7300 /* We do not exit here. We use the same mechanism of --help to print
7301 the version of the sub-processes. */
7302 fputc ('\n', stdout
);
7311 notice ("Target: %s\n", spec_machine
);
7312 notice ("Configured with: %s\n", configuration_arguments
);
7314 #ifdef THREAD_MODEL_SPEC
7315 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7316 but there's no point in doing all this processing just to get
7317 thread_model back. */
7318 obstack_init (&obstack
);
7319 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7320 obstack_1grow (&obstack
, '\0');
7321 thrmod
= XOBFINISH (&obstack
, const char *);
7323 thrmod
= thread_model
;
7326 notice ("Thread model: %s\n", thrmod
);
7328 /* compiler_version is truncated at the first space when initialized
7329 from version string, so truncate version_string at the first space
7330 before comparing. */
7331 for (n
= 0; version_string
[n
]; n
++)
7332 if (version_string
[n
] == ' ')
7335 if (! strncmp (version_string
, compiler_version
, n
)
7336 && compiler_version
[n
] == 0)
7337 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
7339 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7340 version_string
, pkgversion_string
, compiler_version
);
7346 if (n_infiles
== added_libraries
)
7347 fatal ("no input files");
7349 /* Make a place to record the compiler output file names
7350 that correspond to the input files. */
7353 i
+= lang_specific_extra_outfiles
;
7354 outfiles
= XCNEWVEC (const char *, i
);
7356 /* Record which files were specified explicitly as link input. */
7358 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7361 combine_inputs
= true;
7363 combine_inputs
= false;
7365 for (i
= 0; (int) i
< n_infiles
; i
++)
7367 const char *name
= infiles
[i
].name
;
7368 struct compiler
*compiler
= lookup_compiler (name
,
7370 infiles
[i
].language
);
7372 if (compiler
&& !(compiler
->combinable
))
7373 combine_inputs
= false;
7375 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7376 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7377 infiles
[i
].incompiler
= compiler
;
7381 input_file_compiler
= compiler
;
7382 infiles
[i
].incompiler
= compiler
;
7386 /* Since there is no compiler for this input file, assume it is a
7388 explicit_link_files
[i
] = 1;
7389 infiles
[i
].incompiler
= NULL
;
7391 infiles
[i
].compiled
= false;
7392 infiles
[i
].preprocessed
= false;
7395 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7396 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7398 if (combine_flag
&& save_temps_flag
)
7400 bool save_combine_inputs
= combine_inputs
;
7401 /* Must do a separate pre-processing pass for C & Objective-C files, to
7402 obtain individual .i files. */
7404 combine_inputs
= false;
7405 for (i
= 0; (int) i
< n_infiles
; i
++)
7407 int this_file_error
= 0;
7409 input_file_number
= i
;
7410 set_input (infiles
[i
].name
);
7411 if (infiles
[i
].incompiler
7412 && (infiles
[i
].incompiler
)->needs_preprocessing
)
7413 input_file_compiler
= infiles
[i
].incompiler
;
7417 if (input_file_compiler
)
7419 if (input_file_compiler
->spec
[0] == '#')
7421 error ("%s: %s compiler not installed on this system",
7422 input_filename
, &input_file_compiler
->spec
[1]);
7423 this_file_error
= 1;
7427 value
= do_spec (input_file_compiler
->spec
);
7428 infiles
[i
].preprocessed
= true;
7429 if (!have_o_argbuf_index
)
7430 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
7431 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
7432 infiles
[i
].incompiler
7433 = lookup_compiler (infiles
[i
].name
,
7434 strlen (infiles
[i
].name
),
7435 infiles
[i
].language
);
7438 this_file_error
= 1;
7442 if (this_file_error
)
7444 delete_failure_queue ();
7448 clear_failure_queue ();
7450 combine_inputs
= save_combine_inputs
;
7453 for (i
= 0; (int) i
< n_infiles
; i
++)
7455 int this_file_error
= 0;
7457 /* Tell do_spec what to substitute for %i. */
7459 input_file_number
= i
;
7460 set_input (infiles
[i
].name
);
7462 if (infiles
[i
].compiled
)
7465 /* Use the same thing in %o, unless cp->spec says otherwise. */
7467 outfiles
[i
] = input_filename
;
7469 /* Figure out which compiler from the file's suffix. */
7471 if (! combine_inputs
)
7473 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7474 infiles
[i
].language
);
7476 input_file_compiler
= infiles
[i
].incompiler
;
7478 if (input_file_compiler
)
7480 /* Ok, we found an applicable compiler. Run its spec. */
7482 if (input_file_compiler
->spec
[0] == '#')
7484 error ("%s: %s compiler not installed on this system",
7485 input_filename
, &input_file_compiler
->spec
[1]);
7486 this_file_error
= 1;
7492 if (debug_check_temp_file
[0])
7493 free (debug_check_temp_file
[0]);
7494 debug_check_temp_file
[0] = NULL
;
7496 if (debug_check_temp_file
[1])
7497 free (debug_check_temp_file
[1]);
7498 debug_check_temp_file
[1] = NULL
;
7501 value
= do_spec (input_file_compiler
->spec
);
7502 infiles
[i
].compiled
= true;
7504 this_file_error
= 1;
7505 else if (compare_debug
&& debug_check_temp_file
[0])
7508 error ("Recompiling with -fcompare-debug");
7510 compare_debug
= -compare_debug
;
7511 n_switches
= n_switches_debug_check
[1];
7512 switches
= switches_debug_check
[1];
7514 value
= do_spec (input_file_compiler
->spec
);
7516 compare_debug
= -compare_debug
;
7517 n_switches
= n_switches_debug_check
[0];
7518 switches
= switches_debug_check
[0];
7522 error ("during -fcompare-debug recompilation");
7523 this_file_error
= 1;
7526 gcc_assert (debug_check_temp_file
[1]
7527 && strcmp (debug_check_temp_file
[0],
7528 debug_check_temp_file
[1]));
7531 error ("Comparing final insns dumps");
7533 if (compare_files (debug_check_temp_file
))
7534 this_file_error
= 1;
7539 if (debug_check_temp_file
[0])
7540 free (debug_check_temp_file
[0]);
7541 debug_check_temp_file
[0] = NULL
;
7543 if (debug_check_temp_file
[1])
7544 free (debug_check_temp_file
[1]);
7545 debug_check_temp_file
[1] = NULL
;
7550 /* If this file's name does not contain a recognized suffix,
7551 record it as explicit linker input. */
7554 explicit_link_files
[i
] = 1;
7556 /* Clear the delete-on-failure queue, deleting the files in it
7557 if this compilation failed. */
7559 if (this_file_error
)
7561 delete_failure_queue ();
7564 /* If this compilation succeeded, don't delete those files later. */
7565 clear_failure_queue ();
7568 /* Reset the input file name to the first compile/object file name, for use
7569 with %b in LINK_SPEC. We use the first input file that we can find
7570 a compiler to compile it instead of using infiles.language since for
7571 languages other than C we use aliases that we then lookup later. */
7576 for (i
= 0; i
< n_infiles
; i
++)
7577 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7579 set_input (infiles
[i
].name
);
7584 if (error_count
== 0)
7586 /* Make sure INPUT_FILE_NUMBER points to first available open
7588 input_file_number
= n_infiles
;
7589 if (lang_specific_pre_link ())
7593 /* Determine if there are any linker input files. */
7594 num_linker_inputs
= 0;
7595 for (i
= 0; (int) i
< n_infiles
; i
++)
7596 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7597 num_linker_inputs
++;
7599 /* Run ld to link all the compiler output files. */
7601 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
7603 int tmp
= execution_count
;
7604 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7606 /* We'll use ld if we can't find collect2. */
7607 if (! strcmp (linker_name_spec
, "collect2"))
7609 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7611 linker_name_spec
= "ld";
7614 if (switch_matches (fuse_linker_plugin
,
7615 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
7617 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
7618 "liblto_plugin.so", X_OK
,
7620 if (!linker_plugin_file_spec
)
7621 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7623 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
7625 if (!lto_libgcc_spec
)
7626 fatal ("could not find libgcc.a");
7628 lto_gcc_spec
= argv
[0];
7630 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7632 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7633 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7635 if (print_subprocess_help
== 1)
7637 printf (_("\nLinker options\n==============\n\n"));
7638 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7639 " to the linker.\n\n"));
7642 value
= do_spec (link_command_spec
);
7645 linker_was_run
= (tmp
!= execution_count
);
7648 /* If options said don't run linker,
7649 complain about input files to be given to the linker. */
7651 if (! linker_was_run
&& error_count
== 0)
7652 for (i
= 0; (int) i
< n_infiles
; i
++)
7653 if (explicit_link_files
[i
]
7654 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7655 error ("%s: linker input file unused because linking not done",
7658 /* Delete some or all of the temporary files we made. */
7661 delete_failure_queue ();
7662 delete_temp_files ();
7664 if (print_help_list
)
7666 printf (("\nFor bug reporting instructions, please see:\n"));
7667 printf ("%s\n", bug_report_url
);
7670 return (signal_count
!= 0 ? 2
7671 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
7675 /* Find the proper compilation spec for the file name NAME,
7676 whose length is LENGTH. LANGUAGE is the specified language,
7677 or 0 if this file is to be passed to the linker. */
7679 static struct compiler
*
7680 lookup_compiler (const char *name
, size_t length
, const char *language
)
7682 struct compiler
*cp
;
7684 /* If this was specified by the user to be a linker input, indicate that. */
7685 if (language
!= 0 && language
[0] == '*')
7688 /* Otherwise, look for the language, if one is spec'd. */
7691 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7692 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7695 error ("language %s not recognized", language
);
7699 /* Look for a suffix. */
7700 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7702 if (/* The suffix `-' matches only the file name `-'. */
7703 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7704 || (strlen (cp
->suffix
) < length
7705 /* See if the suffix matches the end of NAME. */
7706 && !strcmp (cp
->suffix
,
7707 name
+ length
- strlen (cp
->suffix
))
7712 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7713 /* Look again, but case-insensitively this time. */
7715 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7717 if (/* The suffix `-' matches only the file name `-'. */
7718 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7719 || (strlen (cp
->suffix
) < length
7720 /* See if the suffix matches the end of NAME. */
7721 && ((!strcmp (cp
->suffix
,
7722 name
+ length
- strlen (cp
->suffix
))
7723 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7724 && !strcasecmp (cp
->suffix
,
7725 name
+ length
- strlen (cp
->suffix
)))
7731 if (cp
>= compilers
)
7733 if (cp
->spec
[0] != '@')
7734 /* A non-alias entry: return it. */
7737 /* An alias entry maps a suffix to a language.
7738 Search for the language; pass 0 for NAME and LENGTH
7739 to avoid infinite recursion if language not found. */
7740 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7746 save_string (const char *s
, int len
)
7748 char *result
= XNEWVEC (char, len
+ 1);
7750 memcpy (result
, s
, len
);
7756 pfatal_with_name (const char *name
)
7758 perror_with_name (name
);
7759 delete_temp_files ();
7764 perror_with_name (const char *name
)
7766 error ("%s: %s", name
, xstrerror (errno
));
7769 /* Output an error message and exit. */
7772 fancy_abort (const char *file
, int line
, const char *func
)
7774 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
7777 /* Output an error message and exit. */
7780 fatal_ice (const char *cmsgid
, ...)
7784 va_start (ap
, cmsgid
);
7786 fprintf (stderr
, "%s: ", programname
);
7787 vfprintf (stderr
, _(cmsgid
), ap
);
7789 fprintf (stderr
, "\n");
7790 delete_temp_files ();
7791 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7795 fatal (const char *cmsgid
, ...)
7799 va_start (ap
, cmsgid
);
7801 fprintf (stderr
, "%s: ", programname
);
7802 vfprintf (stderr
, _(cmsgid
), ap
);
7804 fprintf (stderr
, "\n");
7805 delete_temp_files ();
7809 /* The argument is actually c-format, not gcc-internal-format,
7810 but because functions with identical names are used through
7811 the rest of the compiler with gcc-internal-format, we just
7812 need to hope all users of these functions use the common
7813 subset between c-format and gcc-internal-format. */
7816 error (const char *gmsgid
, ...)
7820 va_start (ap
, gmsgid
);
7821 fprintf (stderr
, "%s: ", programname
);
7822 vfprintf (stderr
, _(gmsgid
), ap
);
7825 fprintf (stderr
, "\n");
7829 notice (const char *cmsgid
, ...)
7833 va_start (ap
, cmsgid
);
7834 vfprintf (stderr
, _(cmsgid
), ap
);
7839 validate_switches_from_spec (const char *spec
)
7841 const char *p
= spec
;
7844 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7845 /* We have a switch spec. */
7846 p
= validate_switches (p
+ 1);
7850 validate_all_switches (void)
7852 struct compiler
*comp
;
7853 struct spec_list
*spec
;
7855 for (comp
= compilers
; comp
->spec
; comp
++)
7856 validate_switches_from_spec (comp
->spec
);
7858 /* Look through the linked list of specs read from the specs file. */
7859 for (spec
= specs
; spec
; spec
= spec
->next
)
7860 validate_switches_from_spec (*spec
->ptr_spec
);
7862 validate_switches_from_spec (link_command_spec
);
7865 /* Look at the switch-name that comes after START
7866 and mark as valid all supplied switches that match it. */
7869 validate_switches (const char *start
)
7871 const char *p
= start
;
7875 bool suffix
= false;
7876 bool starred
= false;
7878 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7887 if (*p
== '.' || *p
== ',')
7891 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7892 || *p
== ',' || *p
== '.' || *p
== '@')
7897 starred
= true, p
++;
7903 /* Mark all matching switches as valid. */
7904 for (i
= 0; i
< n_switches
; i
++)
7905 if (!strncmp (switches
[i
].part1
, atom
, len
)
7906 && (starred
|| switches
[i
].part1
[len
] == 0))
7907 switches
[i
].validated
= 1;
7911 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7914 if (*p
&& p
[-1] == ':')
7916 while (*p
&& *p
!= ';' && *p
!= '}')
7921 if (*p
== '{' || *p
== '<')
7922 p
= validate_switches (p
+1);
7923 else if (p
[0] == 'W' && p
[1] == '{')
7924 p
= validate_switches (p
+2);
7931 if (*p
&& p
[-1] == ';')
7945 static struct mdswitchstr
*mdswitches
;
7946 static int n_mdswitches
;
7948 /* Check whether a particular argument was used. The first time we
7949 canonicalize the switches to keep only the ones we care about. */
7952 used_arg (const char *p
, int len
)
7957 const char *replace
;
7962 static struct mswitchstr
*mswitches
;
7963 static int n_mswitches
;
7968 struct mswitchstr
*matches
;
7972 /* Break multilib_matches into the component strings of string
7973 and replacement string. */
7974 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7979 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7981 q
= multilib_matches
;
7990 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7994 matches
[i
].len
= q
- matches
[i
].str
;
7996 matches
[i
].replace
= ++q
;
7997 while (*q
!= ';' && *q
!= '\0')
8000 goto invalid_matches
;
8003 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8009 /* Now build a list of the replacement string for switches that we care
8010 about. Make sure we allocate at least one entry. This prevents
8011 xmalloc from calling fatal, and prevents us from re-executing this
8014 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8015 for (i
= 0; i
< n_switches
; i
++)
8016 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8018 int xlen
= strlen (switches
[i
].part1
);
8019 for (j
= 0; j
< cnt
; j
++)
8020 if (xlen
== matches
[j
].len
8021 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8023 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8024 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8025 mswitches
[n_mswitches
].replace
= (char *) 0;
8026 mswitches
[n_mswitches
].rep_len
= 0;
8032 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8033 on the command line nor any options mutually incompatible with
8035 for (i
= 0; i
< n_mdswitches
; i
++)
8039 for (q
= multilib_options
; *q
!= '\0'; q
++)
8045 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8046 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8048 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8055 if (*q
!= ' ' && *q
!= '\0')
8057 while (*r
!= ' ' && *r
!= '\0')
8060 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8063 if (used_arg (r
, q
- r
))
8068 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8069 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8070 mswitches
[n_mswitches
].replace
= (char *) 0;
8071 mswitches
[n_mswitches
].rep_len
= 0;
8084 for (i
= 0; i
< n_mswitches
; i
++)
8085 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8092 default_arg (const char *p
, int len
)
8096 for (i
= 0; i
< n_mdswitches
; i
++)
8097 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8103 /* Work out the subdirectory to use based on the options. The format of
8104 multilib_select is a list of elements. Each element is a subdirectory
8105 name followed by a list of options followed by a semicolon. The format
8106 of multilib_exclusions is the same, but without the preceding
8107 directory. First gcc will check the exclusions, if none of the options
8108 beginning with an exclamation point are present, and all of the other
8109 options are present, then we will ignore this completely. Passing
8110 that, gcc will consider each multilib_select in turn using the same
8111 rules for matching the options. If a match is found, that subdirectory
8115 set_multilib_dir (void)
8118 unsigned int this_path_len
;
8119 const char *this_path
, *this_arg
;
8120 const char *start
, *end
;
8122 int ok
, ndfltok
, first
;
8125 start
= multilib_defaults
;
8126 while (*start
== ' ' || *start
== '\t')
8128 while (*start
!= '\0')
8131 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8133 while (*start
== ' ' || *start
== '\t')
8141 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8142 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8144 while (*start
== ' ' || *start
== '\t')
8150 for (end
= start
+ 1;
8151 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8154 obstack_grow (&multilib_obstack
, start
, end
- start
);
8155 obstack_1grow (&multilib_obstack
, 0);
8156 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8157 mdswitches
[i
++].len
= end
- start
;
8164 p
= multilib_exclusions
;
8167 /* Ignore newlines. */
8174 /* Check the arguments. */
8181 fatal ("multilib exclusions '%s' is invalid",
8182 multilib_exclusions
);
8192 while (*p
!= ' ' && *p
!= ';')
8195 goto invalid_exclusions
;
8199 if (*this_arg
!= '!')
8207 ok
= used_arg (this_arg
, p
- this_arg
);
8222 p
= multilib_select
;
8225 /* Ignore newlines. */
8232 /* Get the initial path. */
8239 fatal ("multilib select '%s' is invalid",
8244 this_path_len
= p
- this_path
;
8246 /* Check the arguments. */
8253 goto invalid_select
;
8262 while (*p
!= ' ' && *p
!= ';')
8265 goto invalid_select
;
8269 if (*this_arg
!= '!')
8277 /* If this is a default argument, we can just ignore it.
8278 This is true even if this_arg begins with '!'. Beginning
8279 with '!' does not mean that this argument is necessarily
8280 inappropriate for this library: it merely means that
8281 there is a more specific library which uses this
8282 argument. If this argument is a default, we need not
8283 consider that more specific library. */
8284 ok
= used_arg (this_arg
, p
- this_arg
);
8291 if (default_arg (this_arg
, p
- this_arg
))
8300 if (this_path_len
!= 1
8301 || this_path
[0] != '.')
8303 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8306 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8307 new_multilib_dir
[this_path_len
] = '\0';
8308 q
= strchr (new_multilib_dir
, ':');
8311 multilib_dir
= new_multilib_dir
;
8318 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8320 while (q
< end
&& *q
!= ':')
8324 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
8325 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
8326 new_multilib_os_dir
[end
- q
- 1] = '\0';
8327 multilib_os_dir
= new_multilib_os_dir
;
8335 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8336 && strcmp (multilib_os_dir
, ".") == 0)
8338 free (CONST_CAST (char *, multilib_os_dir
));
8339 multilib_os_dir
= NULL
;
8341 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8342 multilib_os_dir
= multilib_dir
;
8345 /* Print out the multiple library subdirectory selection
8346 information. This prints out a series of lines. Each line looks
8347 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8348 required. Only the desired options are printed out, the negative
8349 matches. The options are print without a leading dash. There are
8350 no spaces to make it easy to use the information in the shell.
8351 Each subdirectory is printed only once. This assumes the ordering
8352 generated by the genmultilib script. Also, we leave out ones that match
8356 print_multilib_info (void)
8358 const char *p
= multilib_select
;
8359 const char *last_path
= 0, *this_path
;
8361 unsigned int last_path_len
= 0;
8366 /* Ignore newlines. */
8373 /* Get the initial path. */
8380 fatal ("multilib select '%s' is invalid", multilib_select
);
8386 /* When --disable-multilib was used but target defines
8387 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8388 to find multilib_os_dir, so skip them from output. */
8389 if (this_path
[0] == '.' && this_path
[1] == ':')
8392 /* Check for matches with the multilib_exclusions. We don't bother
8393 with the '!' in either list. If any of the exclusion rules match
8394 all of its options with the select rule, we skip it. */
8396 const char *e
= multilib_exclusions
;
8397 const char *this_arg
;
8402 /* Ignore newlines. */
8409 /* Check the arguments. */
8418 fatal ("multilib exclusion '%s' is invalid",
8419 multilib_exclusions
);
8430 while (*e
!= ' ' && *e
!= ';')
8433 goto invalid_exclusion
;
8441 int len
= e
- this_arg
;
8444 goto invalid_select
;
8448 while (*q
!= ' ' && *q
!= ';')
8451 goto invalid_select
;
8455 if (! strncmp (arg
, this_arg
,
8456 (len
< q
- arg
) ? q
- arg
: len
)
8457 || default_arg (this_arg
, e
- this_arg
))
8487 /* If this is a duplicate, skip it. */
8488 skip
= (last_path
!= 0
8489 && (unsigned int) (p
- this_path
) == last_path_len
8490 && ! strncmp (last_path
, this_path
, last_path_len
));
8492 last_path
= this_path
;
8493 last_path_len
= p
- this_path
;
8496 /* If this directory requires any default arguments, we can skip
8497 it. We will already have printed a directory identical to
8498 this one which does not require that default argument. */
8509 goto invalid_select
;
8516 while (*q
!= ' ' && *q
!= ';')
8519 goto invalid_select
;
8524 && default_arg (arg
, q
- arg
))
8539 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8550 goto invalid_select
;
8558 use_arg
= *p
!= '!';
8563 while (*p
!= ' ' && *p
!= ';')
8566 goto invalid_select
;
8578 /* If there are extra options, print them now. */
8579 if (multilib_extra
&& *multilib_extra
)
8581 int print_at
= TRUE
;
8584 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8605 /* getenv built-in spec function.
8607 Returns the value of the environment variable given by its first
8608 argument, concatenated with the second argument. If the
8609 environment variable is not defined, a fatal error is issued. */
8612 getenv_spec_function (int argc
, const char **argv
)
8622 value
= getenv (argv
[0]);
8624 fatal ("environment variable \"%s\" not defined", argv
[0]);
8626 /* We have to escape every character of the environment variable so
8627 they are not interpreted as active spec characters. A
8628 particularly painful case is when we are reading a variable
8629 holding a windows path complete with \ separators. */
8630 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8631 result
= XNEWVAR (char, len
);
8632 for (ptr
= result
; *value
; ptr
+= 2)
8638 strcpy (ptr
, argv
[1]);
8643 /* if-exists built-in spec function.
8645 Checks to see if the file specified by the absolute pathname in
8646 ARGS exists. Returns that pathname if found.
8648 The usual use for this function is to check for a library file
8649 (whose name has been expanded with %s). */
8652 if_exists_spec_function (int argc
, const char **argv
)
8654 /* Must have only one argument. */
8655 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8661 /* if-exists-else built-in spec function.
8663 This is like if-exists, but takes an additional argument which
8664 is returned if the first argument does not exist. */
8667 if_exists_else_spec_function (int argc
, const char **argv
)
8669 /* Must have exactly two arguments. */
8673 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8679 /* replace-outfile built-in spec function.
8681 This looks for the first argument in the outfiles array's name and
8682 replaces it with the second argument. */
8685 replace_outfile_spec_function (int argc
, const char **argv
)
8688 /* Must have exactly two arguments. */
8692 for (i
= 0; i
< n_infiles
; i
++)
8694 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
8695 outfiles
[i
] = xstrdup (argv
[1]);
8700 /* Given two version numbers, compares the two numbers.
8701 A version number must match the regular expression
8702 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8705 compare_version_strings (const char *v1
, const char *v2
)
8710 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8711 REG_EXTENDED
| REG_NOSUB
) != 0)
8713 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8714 if (rresult
== REG_NOMATCH
)
8715 fatal ("invalid version number `%s'", v1
);
8716 else if (rresult
!= 0)
8718 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8719 if (rresult
== REG_NOMATCH
)
8720 fatal ("invalid version number `%s'", v2
);
8721 else if (rresult
!= 0)
8724 return strverscmp (v1
, v2
);
8728 /* version_compare built-in spec function.
8730 This takes an argument of the following form:
8732 <comparison-op> <arg1> [<arg2>] <switch> <result>
8734 and produces "result" if the comparison evaluates to true,
8735 and nothing if it doesn't.
8737 The supported <comparison-op> values are:
8739 >= true if switch is a later (or same) version than arg1
8741 < true if switch is an earlier version than arg1
8743 >< true if switch is arg1 or later, and earlier than arg2
8744 <> true if switch is earlier than arg1 or is arg2 or later
8746 If the switch is not present, the condition is false unless
8747 the first character of the <comparison-op> is '!'.
8750 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8751 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8754 version_compare_spec_function (int argc
, const char **argv
)
8758 const char *switch_value
= NULL
;
8763 fatal ("too few arguments to %%:version-compare");
8764 if (argv
[0][0] == '\0')
8766 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8768 if (argc
!= nargs
+ 3)
8769 fatal ("too many arguments to %%:version-compare");
8771 switch_len
= strlen (argv
[nargs
+ 1]);
8772 for (i
= 0; i
< n_switches
; i
++)
8773 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8774 && check_live_switch (i
, switch_len
))
8775 switch_value
= switches
[i
].part1
+ switch_len
;
8777 if (switch_value
== NULL
)
8781 comp1
= compare_version_strings (switch_value
, argv
[1]);
8783 comp2
= compare_version_strings (switch_value
, argv
[2]);
8785 comp2
= -1; /* This value unused. */
8788 switch (argv
[0][0] << 8 | argv
[0][1])
8790 case '>' << 8 | '=':
8791 result
= comp1
>= 0;
8793 case '!' << 8 | '<':
8794 result
= comp1
>= 0 || switch_value
== NULL
;
8799 case '!' << 8 | '>':
8800 result
= comp1
< 0 || switch_value
== NULL
;
8802 case '>' << 8 | '<':
8803 result
= comp1
>= 0 && comp2
< 0;
8805 case '<' << 8 | '>':
8806 result
= comp1
< 0 || comp2
>= 0;
8810 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8815 return argv
[nargs
+ 2];
8818 /* %:include builtin spec function. This differs from %include in that it
8819 can be nested inside a spec, and thus be conditionalized. It takes
8820 one argument, the filename, and looks for it in the startfile path.
8821 The result is always NULL, i.e. an empty expansion. */
8824 include_spec_function (int argc
, const char **argv
)
8831 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8832 read_specs (file
? file
: argv
[0], FALSE
);
8837 /* %:print-asm-header spec function. Print a banner to say that the
8838 following output is from the assembler. */
8841 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8842 const char **argv ATTRIBUTE_UNUSED
)
8844 printf (_("Assembler options\n=================\n\n"));
8845 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8850 /* Compute a timestamp to initialize flag_random_seed. */
8853 get_local_tick (void)
8857 /* Get some more or less random data. */
8858 #ifdef HAVE_GETTIMEOFDAY
8862 gettimeofday (&tv
, NULL
);
8863 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8867 time_t now
= time (NULL
);
8869 if (now
!= (time_t)-1)
8870 ret
= (unsigned) now
;
8877 /* %:compare-debug-dump-opt spec function. Save the last argument,
8878 expected to be the last -fdump-final-insns option, or generate a
8882 compare_debug_dump_opt_spec_function (int arg
,
8883 const char **argv ATTRIBUTE_UNUSED
)
8888 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8891 fatal ("too many arguments to %%:compare-debug-dump-opt");
8893 do_spec_2 ("%{fdump-final-insns=*:%*}");
8894 do_spec_1 (" ", 0, NULL
);
8896 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8901 name
= xstrdup (argv
[argbuf_index
- 1]);
8906 const char *ext
= NULL
;
8908 if (argbuf_index
> 0)
8910 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8913 else if (!compare_debug
)
8916 do_spec_2 ("%g.gkd");
8918 do_spec_1 (" ", 0, NULL
);
8920 gcc_assert (argbuf_index
> 0);
8922 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8924 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8927 which
= compare_debug
< 0;
8928 debug_check_temp_file
[which
] = name
;
8932 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8934 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8938 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8947 static const char *debug_auxbase_opt
;
8949 /* %:compare-debug-self-opt spec function. Expands to the options
8950 that are to be passed in the second compilation of
8954 compare_debug_self_opt_spec_function (int arg
,
8955 const char **argv ATTRIBUTE_UNUSED
)
8958 fatal ("too many arguments to %%:compare-debug-self-opt");
8960 if (compare_debug
>= 0)
8963 do_spec_2 ("%{c|S:%{o*:%*}}");
8964 do_spec_1 (" ", 0, NULL
);
8966 if (argbuf_index
> 0)
8967 debug_auxbase_opt
= concat ("-auxbase-strip ",
8968 argbuf
[argbuf_index
- 1],
8971 debug_auxbase_opt
= NULL
;
8974 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8975 %<fdump-final-insns=* -w -S -o %j \
8976 %{!fcompare-debug-second:-fcompare-debug-second} \
8977 ", compare_debug_opt
, NULL
);
8980 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8981 options that are to be passed in the second compilation of
8982 compare-debug. It expects, as an argument, the basename of the
8983 current input file name, with the .gk suffix appended to it. */
8986 compare_debug_auxbase_opt_spec_function (int arg
,
8993 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8996 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8998 if (compare_debug
>= 0)
9001 len
= strlen (argv
[0]);
9002 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9003 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
9005 if (debug_auxbase_opt
)
9006 return debug_auxbase_opt
;
9008 #define OPT "-auxbase "
9011 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9012 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9013 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9014 name
[sizeof (OPT
) - 1 + len
] = '\0';