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,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 /* A Short Introduction to Adding a Command-Line Option.
35 Before adding a command-line option, consider if it is really
36 necessary. Each additional command-line option adds complexity and
37 is difficult to remove in subsequent versions.
39 In the following, consider adding the command-line argument
42 1. Each command-line option is specified in the specs file. The
43 notation is described below in the comment entitled "The Specs
46 2. In this file, add an entry to "option_map" equating the long
47 `--' argument version and any shorter, single letter version. Read
48 the comments in the declaration of "struct option_map" for an
49 explanation. Do not omit the first `-'.
51 3. Look in the "specs" file to determine which program or option
52 list should be given the argument, e.g., "cc1_options". Add the
53 appropriate syntax for the shorter option version to the
54 corresponding "const char *" entry in this file. Omit the first
55 `-' from the option. For example, use `-bar', rather than `--bar'.
57 4. If the argument takes an argument, e.g., `--baz argument1',
58 modify either DEFAULT_SWITCH_TAKES_ARG or
59 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
62 5. Document the option in this file's display_help(). If the
63 option is passed to a subprogram, modify its corresponding
64 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
67 6. Compile and test. Make sure that your new specs file is being
68 read. For example, use a debugger to investigate the value of
69 "specs_file" in main(). */
73 #include "coretypes.h"
74 #include "multilib.h" /* before tm.h */
77 #if ! defined( SIGCHLD ) && defined( SIGCLD )
78 # define SIGCHLD SIGCLD
85 #include "diagnostic.h"
90 # include <sys/mman.h>
92 /* This is on Solaris. */
93 # include <sys/types.h>
98 # define MAP_FAILED ((void *)-1)
101 /* By default there is no special suffix for target executables. */
102 /* FIXME: when autoconf is fixed, remove the host check - dj */
103 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
104 #define HAVE_TARGET_EXECUTABLE_SUFFIX
107 /* By default there is no special suffix for host executables. */
108 #ifdef HOST_EXECUTABLE_SUFFIX
109 #define HAVE_HOST_EXECUTABLE_SUFFIX
111 #define HOST_EXECUTABLE_SUFFIX ""
114 /* By default, the suffix for target object files is ".o". */
115 #ifdef TARGET_OBJECT_SUFFIX
116 #define HAVE_TARGET_OBJECT_SUFFIX
118 #define TARGET_OBJECT_SUFFIX ".o"
121 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
123 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
124 #ifndef LIBRARY_PATH_ENV
125 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
129 #define kill(p,s) raise(s)
132 /* If a stage of compilation returns an exit status >= 1,
133 compilation of that file ceases. */
135 #define MIN_FATAL_STATUS 1
137 /* Flag set by cppspec.c to 1. */
140 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
141 static bool at_file_supplied
;
143 /* Flag saying to pass the greatest exit code returned by a sub-process
144 to the calling program. */
145 static int pass_exit_codes
;
147 /* Definition of string containing the arguments given to configure. */
148 #include "configargs.h"
150 /* Flag saying to print the directories gcc will search through looking for
151 programs, libraries, etc. */
153 static int print_search_dirs
;
155 /* Flag saying to print the full filename of this file
156 as found through our usual search mechanism. */
158 static const char *print_file_name
= NULL
;
160 /* As print_file_name, but search for executable file. */
162 static const char *print_prog_name
= NULL
;
164 /* Flag saying to print the relative path we'd use to
165 find libgcc.a given the current compiler flags. */
167 static int print_multi_directory
;
169 static int print_sysroot
;
171 /* Flag saying to print the relative path we'd use to
172 find OS libraries given the current compiler flags. */
174 static int print_multi_os_directory
;
176 /* Flag saying to print the list of subdirectories and
177 compiler flags used to select them in a standard form. */
179 static int print_multi_lib
;
181 /* Flag saying to print the command line options understood by gcc and its
184 static int print_help_list
;
186 /* Flag saying to print the version of gcc and its sub-processes. */
188 static int print_version
;
190 /* Flag saying to print the sysroot suffix used for searching for
193 static int print_sysroot_headers_suffix
;
195 /* Flag indicating whether we should print the command and arguments */
197 static int verbose_flag
;
199 /* Flag indicating whether we should ONLY print the command and
200 arguments (like verbose_flag) without executing the command.
201 Displayed arguments are quoted so that the generated command
202 line is suitable for execution. This is intended for use in
203 shell scripts to capture the driver-generated command line. */
204 static int verbose_only_flag
;
206 /* Flag indicating how to print command line options of sub-processes. */
208 static int print_subprocess_help
;
210 /* Flag indicating whether we should report subprocess execution times
211 (if this is supported by the system - see pexecute.c). */
213 static int report_times
;
215 /* Whether we should report subprocess execution times to a file. */
217 FILE *report_times_to_file
= NULL
;
219 /* Nonzero means place this string before uses of /, so that include
220 and library files can be found in an alternate location. */
222 #ifdef TARGET_SYSTEM_ROOT
223 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
225 static const char *target_system_root
= 0;
228 /* Nonzero means pass the updated target_system_root to the compiler. */
230 static int target_system_root_changed
;
232 /* Nonzero means append this string to target_system_root. */
234 static const char *target_sysroot_suffix
= 0;
236 /* Nonzero means append this string to target_system_root for headers. */
238 static const char *target_sysroot_hdrs_suffix
= 0;
240 /* Nonzero means write "temp" files in source directory
241 and use the source file's name in them, and don't delete them. */
243 static enum save_temps
{
244 SAVE_TEMPS_NONE
, /* no -save-temps */
245 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
246 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
249 /* Output file to use to get the object directory for -save-temps=obj */
250 static char *save_temps_prefix
= 0;
251 static size_t save_temps_length
= 0;
253 /* Nonzero means pass multiple source files to the compiler at one time. */
255 static int combine_flag
= 0;
257 /* Nonzero means use pipes to communicate between subprocesses.
258 Overridden by either of the above two flags. */
260 static int use_pipes
;
262 /* The compiler version. */
264 static const char *compiler_version
;
266 /* The target version. */
268 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
270 /* The target machine. */
272 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
274 /* Nonzero if cross-compiling.
275 When -b is used, the value comes from the `specs' file. */
277 #ifdef CROSS_DIRECTORY_STRUCTURE
278 static const char *cross_compile
= "1";
280 static const char *cross_compile
= "0";
283 /* Greatest exit code of sub-processes that has been encountered up to
285 static int greatest_status
= 1;
287 /* This is the obstack which we use to allocate many strings. */
289 static struct obstack obstack
;
291 /* This is the obstack to build an environment variable to pass to
292 collect2 that describes all of the relevant switches of what to
293 pass the compiler in building the list of pointers to constructors
296 static struct obstack collect_obstack
;
298 /* This is a list of a wrapper program and its arguments.
299 e.g. wrapper_string of "strace,-c"
300 will cause all programs to run as
301 strace -c program arguments
304 static const char *wrapper_string
;
306 /* Forward declaration for prototypes. */
310 static void init_spec (void);
311 static void store_arg (const char *, int, int);
312 static void insert_wrapper (const char *);
313 static char *load_specs (const char *);
314 static void read_specs (const char *, int);
315 static void set_spec (const char *, const char *);
316 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
317 static char *build_search_list (const struct path_prefix
*, const char *,
319 static void xputenv (const char *);
320 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
322 static int access_check (const char *, int);
323 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
324 static void add_prefix (struct path_prefix
*, const char *, const char *,
326 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
327 const char *, int, int, int);
328 static void translate_options (int *, const char *const **);
329 static char *skip_whitespace (char *);
330 static void delete_if_ordinary (const char *);
331 static void delete_temp_files (void);
332 static void delete_failure_queue (void);
333 static void clear_failure_queue (void);
334 static int check_live_switch (int, int);
335 static const char *handle_braces (const char *);
336 static inline bool input_suffix_matches (const char *, const char *);
337 static inline bool switch_matches (const char *, const char *, int);
338 static inline void mark_matching_switches (const char *, const char *, int);
339 static inline void process_marked_switches (void);
340 static const char *process_brace_body (const char *, const char *, const char *, int, int);
341 static const struct spec_function
*lookup_spec_function (const char *);
342 static const char *eval_spec_function (const char *, const char *);
343 static const char *handle_spec_function (const char *);
344 static char *save_string (const char *, int);
345 static void set_collect_gcc_options (void);
346 static int do_spec_1 (const char *, int, const char *);
347 static int do_spec_2 (const char *);
348 static void do_option_spec (const char *, const char *);
349 static void do_self_spec (const char *);
350 static const char *find_file (const char *);
351 static int is_directory (const char *, bool);
352 static const char *validate_switches (const char *);
353 static void validate_all_switches (void);
354 static inline void validate_switches_from_spec (const char *);
355 static void give_switch (int, int);
356 static int used_arg (const char *, int);
357 static int default_arg (const char *, int);
358 static void set_multilib_dir (void);
359 static void print_multilib_info (void);
360 static void perror_with_name (const char *);
361 static void display_help (void);
362 static void add_preprocessor_option (const char *, int);
363 static void add_assembler_option (const char *, int);
364 static void add_linker_option (const char *, int);
365 static void process_command (int, const char **);
366 static int execute (void);
367 static void alloc_args (void);
368 static void clear_args (void);
369 static void fatal_signal (int);
370 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
371 static void init_gcc_specs (struct obstack
*, const char *, const char *,
374 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
375 static const char *convert_filename (const char *, int, int);
378 static const char *getenv_spec_function (int, const char **);
379 static const char *if_exists_spec_function (int, const char **);
380 static const char *if_exists_else_spec_function (int, const char **);
381 static const char *replace_outfile_spec_function (int, const char **);
382 static const char *version_compare_spec_function (int, const char **);
383 static const char *include_spec_function (int, const char **);
384 static const char *find_file_spec_function (int, const char **);
385 static const char *find_plugindir_spec_function (int, const char **);
386 static const char *print_asm_header_spec_function (int, const char **);
387 static const char *compare_debug_dump_opt_spec_function (int, const char **);
388 static const char *compare_debug_self_opt_spec_function (int, const char **);
389 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
391 /* The Specs Language
393 Specs are strings containing lines, each of which (if not blank)
394 is made up of a program name, and arguments separated by spaces.
395 The program name must be exact and start from root, since no path
396 is searched and it is unreliable to depend on the current working directory.
397 Redirection of input or output is not supported; the subprograms must
398 accept filenames saying what files to read and write.
400 In addition, the specs can contain %-sequences to substitute variable text
401 or for conditional text. Here is a table of all defined %-sequences.
402 Note that spaces are not generated automatically around the results of
403 expanding these sequences; therefore, you can concatenate them together
404 or with constant text in a single argument.
406 %% substitute one % into the program name or argument.
407 %i substitute the name of the input file being processed.
408 %b substitute the basename of the input file being processed.
409 This is the substring up to (and not including) the last period
410 and not including the directory unless -save-temps was specified
411 to put temporaries in a different location.
412 %B same as %b, but include the file suffix (text after the last period).
414 substitute a file name that has suffix SUFFIX and is chosen
415 once per compilation, and mark the argument a la %d. To reduce
416 exposure to denial-of-service attacks, the file name is now
417 chosen in a way that is hard to predict even when previously
418 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
419 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
420 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
421 had been pre-processed. Previously, %g was simply substituted
422 with a file name chosen once per compilation, without regard
423 to any appended suffix (which was therefore treated just like
424 ordinary text), making such attacks more likely to succeed.
426 like %g, but if -pipe is in effect, expands simply to "-".
428 like %g, but if -pipe is in effect, expands to nothing. (We have both
429 %| and %m to accommodate differences between system assemblers; see
430 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
432 like %g, but generates a new temporary file name even if %uSUFFIX
435 substitutes the last file name generated with %uSUFFIX, generating a
436 new one if there is no such last file name. In the absence of any
437 %uSUFFIX, this is just like %gSUFFIX, except they don't share
438 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
439 would involve the generation of two distinct file names, one
440 for each `%g.s' and another for each `%U.s'. Previously, %U was
441 simply substituted with a file name chosen for the previous %u,
442 without regard to any appended suffix.
444 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
445 writable, and if save-temps is off; otherwise, substitute the name
446 of a temporary file, just like %u. This temporary file is not
447 meant for communication between processes, but rather as a junk
450 substitutes .SUFFIX for the suffixes of a matched switch's args when
451 it is subsequently output with %*. SUFFIX is terminated by the next
453 %d marks the argument containing or following the %d as a
454 temporary file name, so that that file will be deleted if GCC exits
455 successfully. Unlike %g, this contributes no text to the argument.
456 %w marks the argument containing or following the %w as the
457 "output file" of this compilation. This puts the argument
458 into the sequence of arguments that %o will substitute later.
459 %V indicates that this compilation produces no "output file".
461 like %{...} but mark last argument supplied within
462 as a file to be deleted on failure.
463 %o substitutes the names of all the output files, with spaces
464 automatically placed around them. You should write spaces
465 around the %o as well or the results are undefined.
466 %o is for use in the specs for running the linker.
467 Input files whose names have no recognized suffix are not compiled
468 at all, but they are included among the output files, so they will
470 %O substitutes the suffix for object files. Note that this is
471 handled specially when it immediately follows %g, %u, or %U
472 (with or without a suffix argument) because of the need for
473 those to form complete file names. The handling is such that
474 %O is treated exactly as if it had already been substituted,
475 except that %g, %u, and %U do not currently support additional
476 SUFFIX characters following %O as they would following, for
478 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
479 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
480 and -B options) and -imultilib as necessary.
481 %s current argument is the name of a library or startup file of some sort.
482 Search for that file in a standard list of directories
483 and substitute the full name found.
484 %eSTR Print STR as an error message. STR is terminated by a newline.
485 Use this when inconsistent options are detected.
486 %nSTR Print STR as a notice. STR is terminated by a newline.
487 %x{OPTION} Accumulate an option for %X.
488 %X Output the accumulated linker options specified by compilations.
489 %Y Output the accumulated assembler options specified by compilations.
490 %Z Output the accumulated preprocessor options specified by compilations.
491 %a process ASM_SPEC as a spec.
492 This allows config.h to specify part of the spec for running as.
493 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
494 used here. This can be used to run a post-processor after the
495 assembler has done its job.
496 %D Dump out a -L option for each directory in startfile_prefixes.
497 If multilib_dir is set, extra entries are generated with it affixed.
498 %l process LINK_SPEC as a spec.
499 %L process LIB_SPEC as a spec.
500 %G process LIBGCC_SPEC as a spec.
501 %R Output the concatenation of target_system_root and
502 target_sysroot_suffix.
503 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
504 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
505 %C process CPP_SPEC as a spec.
506 %1 process CC1_SPEC as a spec.
507 %2 process CC1PLUS_SPEC as a spec.
508 %* substitute the variable part of a matched option. (See below.)
509 Note that each comma in the substituted string is replaced by
511 %<S remove all occurrences of -S from the command line.
512 Note - this command is position dependent. % commands in the
513 spec string before this one will see -S, % commands in the
514 spec string after this one will not.
515 %<S* remove all occurrences of all switches beginning with -S from the
518 Call the named function FUNCTION, passing it ARGS. ARGS is
519 first processed as a nested spec string, then split into an
520 argument vector in the usual fashion. The function returns
521 a string which is processed as if it had appeared literally
522 as part of the current spec.
523 %{S} substitutes the -S switch, if that switch was given to GCC.
524 If that switch was not specified, this substitutes nothing.
525 Here S is a metasyntactic variable.
526 %{S*} substitutes all the switches specified to GCC whose names start
527 with -S. This is used for -o, -I, etc; switches that take
528 arguments. GCC considers `-o foo' as being one switch whose
529 name starts with `o'. %{o*} would substitute this text,
530 including the space; thus, two arguments would be generated.
531 %{S*&T*} likewise, but preserve order of S and T options (the order
532 of S and T in the spec is not significant). Can be any number
533 of ampersand-separated variables; for each the wild card is
534 optional. Useful for CPP as %{D*&U*&A*}.
536 %{S:X} substitutes X, if the -S switch was given to GCC.
537 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
538 %{S*:X} substitutes X if one or more switches whose names start
539 with -S was given to GCC. Normally X is substituted only
540 once, no matter how many such switches appeared. However,
541 if %* appears somewhere in X, then X will be substituted
542 once for each matching switch, with the %* replaced by the
543 part of that switch that matched the '*'.
544 %{.S:X} substitutes X, if processing a file with suffix S.
545 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
546 %{,S:X} substitutes X, if processing a file which will use spec S.
547 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
549 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
550 combined with '!', '.', ',', and '*' as above binding stronger
552 If %* appears in X, all of the alternatives must be starred, and
553 only the first matching alternative is substituted.
554 %{S:X; if S was given to GCC, substitutes X;
555 T:Y; else if T was given to GCC, substitutes Y;
556 :D} else substitutes D. There can be as many clauses as you need.
557 This may be combined with '.', '!', ',', '|', and '*' as above.
559 %(Spec) processes a specification defined in a specs file as *Spec:
560 %[Spec] as above, but put __ around -D arguments
562 The conditional text X in a %{S:X} or similar construct may contain
563 other nested % constructs or spaces, or even newlines. They are
564 processed as usual, as described above. Trailing white space in X is
565 ignored. White space may also appear anywhere on the left side of the
566 colon in these constructs, except between . or * and the corresponding
569 The -O, -f, -m, and -W switches are handled specifically in these
570 constructs. If another value of -O or the negated form of a -f, -m, or
571 -W switch is found later in the command line, the earlier switch
572 value is ignored, except with {S*} where S is just one letter; this
573 passes all matching options.
575 The character | at the beginning of the predicate text is used to indicate
576 that a command should be piped to the following command, but only if -pipe
579 Note that it is built into GCC which switches take arguments and which
580 do not. You might think it would be useful to generalize this to
581 allow each compiler's spec to say which switches take arguments. But
582 this cannot be done in a consistent fashion. GCC cannot even decide
583 which input files have been specified without knowing which switches
584 take arguments, and it must know which input files to compile in order
585 to tell which compilers to run.
587 GCC also knows implicitly that arguments starting in `-l' are to be
588 treated as compiler output files, and passed to the linker in their
589 proper position among the other output files. */
591 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
593 /* config.h can define ASM_SPEC to provide extra args to the assembler
594 or extra switch-translations. */
599 /* config.h can define ASM_FINAL_SPEC to run a post processor after
600 the assembler has run. */
601 #ifndef ASM_FINAL_SPEC
602 #define ASM_FINAL_SPEC ""
605 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
606 or extra switch-translations. */
611 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
612 or extra switch-translations. */
617 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
618 or extra switch-translations. */
620 #define CC1PLUS_SPEC ""
623 /* config.h can define LINK_SPEC to provide extra args to the linker
624 or extra switch-translations. */
629 /* config.h can define LIB_SPEC to override the default libraries. */
631 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
636 /* XXX: valid only for GNU ld */
637 /* XXX: should exactly match hooks provided by libmudflap.a */
638 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
639 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
640 --wrap=mmap --wrap=munmap --wrap=alloca\
641 } %{fmudflapth: --wrap=pthread_create\
642 }} %{fmudflap|fmudflapth: --wrap=main}"
645 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
648 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
651 #if defined(REAL_LIBGCC_SPEC)
652 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
653 #elif defined(LINK_LIBGCC_SPECIAL_1)
654 /* Have gcc do the search for libgcc.a. */
655 #define LIBGCC_SPEC "libgcc.a%s"
657 #define LIBGCC_SPEC "-lgcc"
661 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
662 #ifndef STARTFILE_SPEC
663 #define STARTFILE_SPEC \
664 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
667 /* config.h can define SWITCHES_NEED_SPACES to control which options
668 require spaces between the option and the argument.
670 We define SWITCHES_NEED_SPACES to include "o" by default. This
671 causes "-ofoo.o" to be split into "-o foo.o" during the initial
672 processing of the command-line, before being seen by the specs
673 machinery. This makes sure we record "foo.o" as the temporary file
674 to be deleted in the case of error, rather than "-ofoo.o". */
675 #ifndef SWITCHES_NEED_SPACES
676 #define SWITCHES_NEED_SPACES "o"
679 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
681 #define ENDFILE_SPEC ""
685 #define LINKER_NAME "collect2"
688 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
689 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
694 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
696 #ifndef ASM_DEBUG_SPEC
697 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
698 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
699 # define ASM_DEBUG_SPEC \
700 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
701 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
702 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
704 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
705 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
707 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
708 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
712 #ifndef ASM_DEBUG_SPEC
713 # define ASM_DEBUG_SPEC ""
716 /* Here is the spec for running the linker, after compiling all files. */
718 /* This is overridable by the target in case they need to specify the
719 -lgcc and -lc order specially, yet not require them to override all
720 of LINK_COMMAND_SPEC. */
721 #ifndef LINK_GCC_C_SEQUENCE_SPEC
722 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
725 #ifndef LINK_SSP_SPEC
726 #ifdef TARGET_LIBC_PROVIDES_SSP
727 #define LINK_SSP_SPEC "%{fstack-protector:}"
729 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
733 #ifndef LINK_PIE_SPEC
735 #define LINK_PIE_SPEC "%{pie:-pie} "
737 #define LINK_PIE_SPEC "%{pie:} "
741 #ifndef LINK_BUILDID_SPEC
742 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
743 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
748 /* -u* was put back because both BSD and SysV seem to support it. */
749 /* %{static:} simply prevents an error message if the target machine
750 doesn't handle -static. */
751 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
752 scripts which exist in user specified directories, or in standard
754 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
755 to understand them. In practice, this means it had better be collect2. */
756 #ifndef LINK_COMMAND_SPEC
757 #define LINK_COMMAND_SPEC "\
758 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
760 %{fuse-linker-plugin: \
761 -plugin %(linker_plugin_file) \
762 -plugin-opt=%(lto_wrapper) \
763 -plugin-opt=-fresolution=%u.res \
764 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
765 %{static:-plugin-opt=-pass-through=-lc} \
767 %{flto} %{fwhopr*} %l " LINK_PIE_SPEC \
768 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
769 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
770 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
771 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
772 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
773 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
774 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
777 #ifndef LINK_LIBGCC_SPEC
778 /* Generate -L options for startfile prefix list. */
779 # define LINK_LIBGCC_SPEC "%D"
782 #ifndef STARTFILE_PREFIX_SPEC
783 # define STARTFILE_PREFIX_SPEC ""
787 # define SYSROOT_SPEC "--sysroot=%R"
790 #ifndef SYSROOT_SUFFIX_SPEC
791 # define SYSROOT_SUFFIX_SPEC ""
794 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
795 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
798 static const char *asm_debug
;
799 static const char *cpp_spec
= CPP_SPEC
;
800 static const char *cc1_spec
= CC1_SPEC
;
801 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
802 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
803 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
804 static const char *asm_spec
= ASM_SPEC
;
805 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
806 static const char *link_spec
= LINK_SPEC
;
807 static const char *lib_spec
= LIB_SPEC
;
808 static const char *mfwrap_spec
= MFWRAP_SPEC
;
809 static const char *mflib_spec
= MFLIB_SPEC
;
810 static const char *link_gomp_spec
= "";
811 static const char *libgcc_spec
= LIBGCC_SPEC
;
812 static const char *endfile_spec
= ENDFILE_SPEC
;
813 static const char *startfile_spec
= STARTFILE_SPEC
;
814 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
815 static const char *linker_name_spec
= LINKER_NAME
;
816 static const char *linker_plugin_file_spec
= "";
817 static const char *lto_wrapper_spec
= "";
818 static const char *lto_gcc_spec
= "";
819 static const char *lto_libgcc_spec
= "";
820 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
821 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
822 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
823 static const char *sysroot_spec
= SYSROOT_SPEC
;
824 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
825 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
827 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
828 There should be no need to override these in target dependent files,
829 but we need to copy them to the specs file so that newer versions
830 of the GCC driver can correctly drive older tool chains with the
831 appropriate -B options. */
833 /* When cpplib handles traditional preprocessing, get rid of this, and
834 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
835 that we default the front end language better. */
836 static const char *trad_capable_cpp
=
837 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
839 /* We don't wrap .d files in %W{} since a missing .d file, and
840 therefore no dependency entry, confuses make into thinking a .o
841 file that happens to exist is up-to-date. */
842 static const char *cpp_unique_options
=
843 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
844 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
845 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
846 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
847 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
848 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
849 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
850 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
851 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
852 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
855 /* This contains cpp options which are common with cc1_options and are passed
856 only when preprocessing only to avoid duplication. We pass the cc1 spec
857 options to the preprocessor so that it the cc1 spec may manipulate
858 options used to set target flags. Those special target flags settings may
859 in turn cause preprocessor symbols to be defined specially. */
860 static const char *cpp_options
=
861 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
862 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
863 %{undef} %{save-temps*:-fpch-preprocess}";
865 /* This contains cpp options which are not passed when the preprocessor
866 output will be used by another program. */
867 static const char *cpp_debug_options
= "%{d*}";
869 /* NB: This is shared amongst all front-ends, except for Ada. */
870 static const char *cc1_options
=
871 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
872 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
873 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{a*}\
874 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
875 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
876 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
877 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
878 %{Qn:-fno-ident} %{--help:--help}\
879 %{--target-help:--target-help}\
880 %{--help=*:--help=%(VALUE)}\
881 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
882 %{fsyntax-only:-o %j} %{-param*}\
883 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
884 %{coverage:-fprofile-arcs -ftest-coverage}";
886 static const char *asm_options
=
887 "%{--target-help:%:print-asm-header()} "
889 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
890 to the assembler equivalents. */
891 "%{v} %{w:-W} %{I*} "
893 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
895 static const char *invoke_as
=
896 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
898 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
899 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
903 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
904 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
908 /* Some compilers have limits on line lengths, and the multilib_select
909 and/or multilib_matches strings can be very long, so we build them at
911 static struct obstack multilib_obstack
;
912 static const char *multilib_select
;
913 static const char *multilib_matches
;
914 static const char *multilib_defaults
;
915 static const char *multilib_exclusions
;
917 /* Check whether a particular argument is a default argument. */
919 #ifndef MULTILIB_DEFAULTS
920 #define MULTILIB_DEFAULTS { "" }
923 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
925 #ifndef DRIVER_SELF_SPECS
926 #define DRIVER_SELF_SPECS ""
929 /* Adding -fopenmp should imply pthreads. This is particularly important
930 for targets that use different start files and suchlike. */
931 #ifndef GOMP_SELF_SPECS
932 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
935 static const char *const driver_self_specs
[] = {
936 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
937 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
940 #ifndef OPTION_DEFAULT_SPECS
941 #define OPTION_DEFAULT_SPECS { "", "" }
950 static const struct default_spec
951 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
955 struct user_specs
*next
;
956 const char *filename
;
959 static struct user_specs
*user_specs_head
, *user_specs_tail
;
961 #ifndef SWITCH_TAKES_ARG
962 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
965 #ifndef WORD_SWITCH_TAKES_ARG
966 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
969 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
970 /* This defines which switches stop a full compilation. */
971 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
972 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
974 #ifndef SWITCH_CURTAILS_COMPILATION
975 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
976 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
980 /* Record the mapping from file suffixes for compilation specs. */
984 const char *suffix
; /* Use this compiler for input files
985 whose names end in this suffix. */
987 const char *spec
; /* To use this compiler, run this spec. */
989 const char *cpp_spec
; /* If non-NULL, substitute this spec
990 for `%C', rather than the usual
992 const int combinable
; /* If nonzero, compiler can deal with
993 multiple source files at once (IMA). */
994 const int needs_preprocessing
; /* If nonzero, source files need to
995 be run through a preprocessor. */
998 /* Pointer to a vector of `struct compiler' that gives the spec for
999 compiling a file, based on its suffix.
1000 A file that does not end in any of these suffixes will be passed
1001 unchanged to the loader and nothing else will be done to it.
1003 An entry containing two 0s is used to terminate the vector.
1005 If multiple entries match a file, the last matching one is used. */
1007 static struct compiler
*compilers
;
1009 /* Number of entries in `compilers', not counting the null terminator. */
1011 static int n_compilers
;
1013 /* The default list of file name suffixes and their compilation specs. */
1015 static const struct compiler default_compilers
[] =
1017 /* Add lists of suffixes of known languages here. If those languages
1018 were not present when we built the driver, we will hit these copies
1019 and be given a more meaningful error than "file not used since
1020 linking is not done". */
1021 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1022 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1023 {".mii", "#Objective-C++", 0, 0, 0},
1024 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1025 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1026 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1027 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1028 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1029 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1030 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1031 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1032 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1033 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1034 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1035 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1036 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1037 {".r", "#Ratfor", 0, 0, 0},
1038 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1039 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1040 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1041 /* Next come the entries for C. */
1042 {".c", "@c", 0, 1, 1},
1044 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1045 external preprocessor if -save-temps is given. */
1046 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1048 %{traditional|ftraditional:\
1049 %eGNU C no longer supports -traditional without -E}\
1051 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1052 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1053 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1055 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1056 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1057 %{!fsyntax-only:%(invoke_as)}} \
1059 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1060 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1061 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1062 cc1 %(cpp_unique_options) %(cc1_options)}}\
1063 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1065 "%{!E:%e-E or -x required when input is from standard input}\
1066 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1067 {".h", "@c-header", 0, 0, 0},
1069 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1070 external preprocessor if -save-temps is given. */
1071 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1073 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1074 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1075 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1077 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1078 %W{o*:--output-pch=%*}}%V}\
1079 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1080 cc1 %(cpp_unique_options) %(cc1_options)\
1081 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
1082 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
1083 {".i", "@cpp-output", 0, 1, 0},
1085 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1086 {".s", "@assembler", 0, 1, 0},
1088 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1089 {".sx", "@assembler-with-cpp", 0, 1, 0},
1090 {".S", "@assembler-with-cpp", 0, 1, 0},
1091 {"@assembler-with-cpp",
1092 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1093 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1094 %{E|M|MM:%(cpp_debug_options)}\
1095 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1096 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1098 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1099 %{E|M|MM:%(cpp_debug_options)}\
1100 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1101 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1106 /* Mark end of table. */
1110 /* Number of elements in default_compilers, not counting the terminator. */
1112 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1114 /* A vector of options to give to the linker.
1115 These options are accumulated by %x,
1116 and substituted into the linker command with %X. */
1117 static int n_linker_options
;
1118 static char **linker_options
;
1120 /* A vector of options to give to the assembler.
1121 These options are accumulated by -Wa,
1122 and substituted into the assembler command with %Y. */
1123 static int n_assembler_options
;
1124 static char **assembler_options
;
1126 /* A vector of options to give to the preprocessor.
1127 These options are accumulated by -Wp,
1128 and substituted into the preprocessor command with %Z. */
1129 static int n_preprocessor_options
;
1130 static char **preprocessor_options
;
1132 /* Define how to map long options into short ones. */
1134 /* This structure describes one mapping. */
1137 /* The long option's name. */
1138 const char *const name
;
1139 /* The equivalent short option. */
1140 const char *const equivalent
;
1141 /* Argument info. A string of flag chars; NULL equals no options.
1142 a => argument required.
1143 o => argument optional.
1144 j => join argument to equivalent, making one word.
1145 * => require other text after NAME as an argument. */
1146 const char *const arg_info
;
1149 /* This is the table of mappings. Mappings are tried sequentially
1150 for each option encountered; the first one that matches, wins. */
1152 static const struct option_map option_map
[] =
1154 {"--all-warnings", "-Wall", 0},
1155 {"--ansi", "-ansi", 0},
1156 {"--assemble", "-S", 0},
1157 {"--assert", "-A", "a"},
1158 {"--classpath", "-fclasspath=", "aj"},
1159 {"--bootclasspath", "-fbootclasspath=", "aj"},
1160 {"--CLASSPATH", "-fclasspath=", "aj"},
1161 {"--combine", "-combine", 0},
1162 {"--comments", "-C", 0},
1163 {"--comments-in-macros", "-CC", 0},
1164 {"--compile", "-c", 0},
1165 {"--debug", "-g", "oj"},
1166 {"--define-macro", "-D", "aj"},
1167 {"--dependencies", "-M", 0},
1168 {"--dump", "-d", "a"},
1169 {"--dumpbase", "-dumpbase", "a"},
1170 {"--dumpdir", "-dumpdir", "a"},
1171 {"--encoding", "-fencoding=", "aj"},
1172 {"--entry", "-e", 0},
1173 {"--extra-warnings", "-W", 0},
1174 {"--extdirs", "-fextdirs=", "aj"},
1175 {"--for-assembler", "-Wa", "a"},
1176 {"--for-linker", "-Xlinker", "a"},
1177 {"--force-link", "-u", "a"},
1178 {"--coverage", "-coverage", 0},
1179 {"--imacros", "-imacros", "a"},
1180 {"--include", "-include", "a"},
1181 {"--include-barrier", "-I-", 0},
1182 {"--include-directory", "-I", "aj"},
1183 {"--include-directory-after", "-idirafter", "a"},
1184 {"--include-prefix", "-iprefix", "a"},
1185 {"--include-with-prefix", "-iwithprefix", "a"},
1186 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1187 {"--include-with-prefix-after", "-iwithprefix", "a"},
1188 {"--language", "-x", "a"},
1189 {"--library-directory", "-L", "a"},
1190 {"--machine", "-m", "aj"},
1191 {"--machine-", "-m", "*j"},
1192 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1193 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1194 {"--no-line-commands", "-P", 0},
1195 {"--no-precompiled-includes", "-noprecomp", 0},
1196 {"--no-standard-includes", "-nostdinc", 0},
1197 {"--no-standard-libraries", "-nostdlib", 0},
1198 {"--no-warnings", "-w", 0},
1199 {"--optimize", "-O", "oj"},
1200 {"--output", "-o", "a"},
1201 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1202 {"--param", "--param", "a"},
1203 {"--pass-exit-codes", "-pass-exit-codes", 0},
1204 {"--pedantic", "-pedantic", 0},
1205 {"--pedantic-errors", "-pedantic-errors", 0},
1206 {"--pie", "-pie", 0},
1207 {"--pipe", "-pipe", 0},
1208 {"--prefix", "-B", "a"},
1209 {"--preprocess", "-E", 0},
1210 {"--print-search-dirs", "-print-search-dirs", 0},
1211 {"--print-file-name", "-print-file-name=", "aj"},
1212 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1213 {"--print-missing-file-dependencies", "-MG", 0},
1214 {"--print-multi-lib", "-print-multi-lib", 0},
1215 {"--print-multi-directory", "-print-multi-directory", 0},
1216 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1217 {"--print-prog-name", "-print-prog-name=", "aj"},
1218 {"--print-sysroot", "-print-sysroot", 0},
1219 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1220 {"--profile", "-p", 0},
1221 {"--profile-blocks", "-a", 0},
1222 {"--quiet", "-q", 0},
1223 {"--resource", "-fcompile-resource=", "aj"},
1224 {"--save-temps", "-save-temps", 0},
1225 {"--shared", "-shared", 0},
1226 {"--silent", "-q", 0},
1227 {"--specs", "-specs=", "aj"},
1228 {"--static", "-static", 0},
1229 {"--std", "-std=", "aj"},
1230 {"--symbolic", "-symbolic", 0},
1231 {"--sysroot", "--sysroot=", "aj"},
1232 {"--time", "-time", 0},
1233 {"--trace-includes", "-H", 0},
1234 {"--traditional", "-traditional", 0},
1235 {"--traditional-cpp", "-traditional-cpp", 0},
1236 {"--trigraphs", "-trigraphs", 0},
1237 {"--undefine-macro", "-U", "aj"},
1238 {"--user-dependencies", "-MM", 0},
1239 {"--verbose", "-v", 0},
1240 {"--warn-", "-W", "*j"},
1241 {"--write-dependencies", "-MD", 0},
1242 {"--write-user-dependencies", "-MMD", 0},
1247 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1248 static const struct {
1249 const char *const option_found
;
1250 const char *const replacements
;
1251 } target_option_translations
[] =
1253 TARGET_OPTION_TRANSLATE_TABLE
,
1258 /* Translate the options described by *ARGCP and *ARGVP.
1259 Make a new vector and store it back in *ARGVP,
1260 and store its length in *ARGCP. */
1263 translate_options (int *argcp
, const char *const **argvp
)
1267 const char *const *argv
= *argvp
;
1268 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1269 const char **newv
= XNEWVAR (const char *, newvsize
);
1273 newv
[newindex
++] = argv
[i
++];
1277 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1281 target_option_translations
[tott_idx
].option_found
;
1284 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1291 for (sp
= target_option_translations
[tott_idx
].replacements
;
1298 newvsize
+= spaces
* sizeof (const char *);
1299 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1301 sp
= target_option_translations
[tott_idx
].replacements
;
1310 newv
[newindex
++] = np
;
1311 while (*np
!= ' ' && *np
)
1322 if (target_option_translations
[tott_idx
].option_found
)
1326 /* Translate -- options. */
1327 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1330 /* Find a mapping that applies to this option. */
1331 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1333 size_t optlen
= strlen (option_map
[j
].name
);
1334 size_t arglen
= strlen (argv
[i
]);
1335 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1336 const char *arginfo
= option_map
[j
].arg_info
;
1341 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1343 const char *arg
= 0;
1345 if (arglen
< optlen
)
1348 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1349 if (strlen (option_map
[k
].name
) >= arglen
1350 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1352 error ("ambiguous abbreviation %s", argv
[i
]);
1356 if (k
!= ARRAY_SIZE (option_map
))
1360 if (arglen
> optlen
)
1362 /* If the option has an argument, accept that. */
1363 if (argv
[i
][optlen
] == '=')
1364 arg
= argv
[i
] + optlen
+ 1;
1366 /* If this mapping requires extra text at end of name,
1367 accept that as "argument". */
1368 else if (strchr (arginfo
, '*') != 0)
1369 arg
= argv
[i
] + optlen
;
1371 /* Otherwise, extra text at end means mismatch.
1372 Try other mappings. */
1377 else if (strchr (arginfo
, '*') != 0)
1379 error ("incomplete %qs option", option_map
[j
].name
);
1383 /* Handle arguments. */
1384 if (strchr (arginfo
, 'a') != 0)
1390 error ("missing argument to %qs option",
1391 option_map
[j
].name
);
1398 else if (strchr (arginfo
, '*') != 0)
1400 else if (strchr (arginfo
, 'o') == 0)
1403 error ("extraneous argument to %qs option",
1404 option_map
[j
].name
);
1408 /* Store the translation as one argv elt or as two. */
1409 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1410 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1414 newv
[newindex
++] = option_map
[j
].equivalent
;
1415 newv
[newindex
++] = arg
;
1418 newv
[newindex
++] = option_map
[j
].equivalent
;
1426 /* Handle old-fashioned options--just copy them through,
1427 with their arguments. */
1428 else if (argv
[i
][0] == '-')
1430 const char *p
= argv
[i
] + 1;
1434 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1435 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1436 else if (WORD_SWITCH_TAKES_ARG (p
))
1437 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1438 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1441 else if (! strcmp (p
, "Xlinker"))
1443 else if (! strcmp (p
, "Xpreprocessor"))
1445 else if (! strcmp (p
, "Xassembler"))
1448 /* Watch out for an option at the end of the command line that
1449 is missing arguments, and avoid skipping past the end of the
1451 if (nskip
+ i
> argc
)
1456 newv
[newindex
++] = argv
[i
++];
1461 /* Ordinary operands. */
1462 newv
[newindex
++] = argv
[i
++];
1472 skip_whitespace (char *p
)
1476 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1477 be considered whitespace. */
1478 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1480 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1494 /* Structures to keep track of prefixes to try when looking for files. */
1498 const char *prefix
; /* String to prepend to the path. */
1499 struct prefix_list
*next
; /* Next in linked list. */
1500 int require_machine_suffix
; /* Don't use without machine_suffix. */
1501 /* 2 means try both machine_suffix and just_machine_suffix. */
1502 int priority
; /* Sort key - priority within list. */
1503 int os_multilib
; /* 1 if OS multilib scheme should be used,
1504 0 for GCC multilib scheme. */
1509 struct prefix_list
*plist
; /* List of prefixes to try */
1510 int max_len
; /* Max length of a prefix in PLIST */
1511 const char *name
; /* Name of this list (used in config stuff) */
1514 /* List of prefixes to try when looking for executables. */
1516 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1518 /* List of prefixes to try when looking for startup (crt0) files. */
1520 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1522 /* List of prefixes to try when looking for include files. */
1524 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1526 /* Suffix to attach to directories searched for commands.
1527 This looks like `MACHINE/VERSION/'. */
1529 static const char *machine_suffix
= 0;
1531 /* Suffix to attach to directories searched for commands.
1532 This is just `MACHINE/'. */
1534 static const char *just_machine_suffix
= 0;
1536 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1538 static const char *gcc_exec_prefix
;
1540 /* Adjusted value of standard_libexec_prefix. */
1542 static const char *gcc_libexec_prefix
;
1544 /* Default prefixes to attach to command names. */
1546 #ifndef STANDARD_STARTFILE_PREFIX_1
1547 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1549 #ifndef STANDARD_STARTFILE_PREFIX_2
1550 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1553 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1554 #undef MD_EXEC_PREFIX
1555 #undef MD_STARTFILE_PREFIX
1556 #undef MD_STARTFILE_PREFIX_1
1559 /* If no prefixes defined, use the null string, which will disable them. */
1560 #ifndef MD_EXEC_PREFIX
1561 #define MD_EXEC_PREFIX ""
1563 #ifndef MD_STARTFILE_PREFIX
1564 #define MD_STARTFILE_PREFIX ""
1566 #ifndef MD_STARTFILE_PREFIX_1
1567 #define MD_STARTFILE_PREFIX_1 ""
1570 /* These directories are locations set at configure-time based on the
1571 --prefix option provided to configure. Their initializers are
1572 defined in Makefile.in. These paths are not *directly* used when
1573 gcc_exec_prefix is set because, in that case, we know where the
1574 compiler has been installed, and use paths relative to that
1575 location instead. */
1576 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1577 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1578 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1579 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1581 /* For native compilers, these are well-known paths containing
1582 components that may be provided by the system. For cross
1583 compilers, these paths are not used. */
1584 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1585 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1586 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1587 static const char *const standard_startfile_prefix_1
1588 = STANDARD_STARTFILE_PREFIX_1
;
1589 static const char *const standard_startfile_prefix_2
1590 = STANDARD_STARTFILE_PREFIX_2
;
1592 /* A relative path to be used in finding the location of tools
1593 relative to the driver. */
1594 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1596 /* Subdirectory to use for locating libraries. Set by
1597 set_multilib_dir based on the compilation options. */
1599 static const char *multilib_dir
;
1601 /* Subdirectory to use for locating libraries in OS conventions. Set by
1602 set_multilib_dir based on the compilation options. */
1604 static const char *multilib_os_dir
;
1606 /* Structure to keep track of the specs that have been defined so far.
1607 These are accessed using %(specname) or %[specname] in a compiler
1612 /* The following 2 fields must be first */
1613 /* to allow EXTRA_SPECS to be initialized */
1614 const char *name
; /* name of the spec. */
1615 const char *ptr
; /* available ptr if no static pointer */
1617 /* The following fields are not initialized */
1618 /* by EXTRA_SPECS */
1619 const char **ptr_spec
; /* pointer to the spec itself. */
1620 struct spec_list
*next
; /* Next spec in linked list. */
1621 int name_len
; /* length of the name */
1622 int alloc_p
; /* whether string was allocated */
1625 #define INIT_STATIC_SPEC(NAME,PTR) \
1626 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1628 /* List of statically defined specs. */
1629 static struct spec_list static_specs
[] =
1631 INIT_STATIC_SPEC ("asm", &asm_spec
),
1632 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1633 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1634 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1635 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1636 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1637 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1638 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1639 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1640 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1641 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1642 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1643 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1644 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1645 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1646 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1647 INIT_STATIC_SPEC ("link", &link_spec
),
1648 INIT_STATIC_SPEC ("lib", &lib_spec
),
1649 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1650 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1651 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1652 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1653 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1654 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1655 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1656 INIT_STATIC_SPEC ("version", &compiler_version
),
1657 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1658 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1659 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1660 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1661 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1662 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1663 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1664 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1665 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1666 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1667 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1668 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1669 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1670 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1671 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1672 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1673 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1674 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1675 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1678 #ifdef EXTRA_SPECS /* additional specs needed */
1679 /* Structure to keep track of just the first two args of a spec_list.
1680 That is all that the EXTRA_SPECS macro gives us. */
1683 const char *const name
;
1684 const char *const ptr
;
1687 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1688 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1691 /* List of dynamically allocates specs that have been defined so far. */
1693 static struct spec_list
*specs
= (struct spec_list
*) 0;
1695 /* List of static spec functions. */
1697 static const struct spec_function static_spec_functions
[] =
1699 { "getenv", getenv_spec_function
},
1700 { "if-exists", if_exists_spec_function
},
1701 { "if-exists-else", if_exists_else_spec_function
},
1702 { "replace-outfile", replace_outfile_spec_function
},
1703 { "version-compare", version_compare_spec_function
},
1704 { "include", include_spec_function
},
1705 { "find-file", find_file_spec_function
},
1706 { "find-plugindir", find_plugindir_spec_function
},
1707 { "print-asm-header", print_asm_header_spec_function
},
1708 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1709 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1710 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1711 #ifdef EXTRA_SPEC_FUNCTIONS
1712 EXTRA_SPEC_FUNCTIONS
1717 static int processing_spec_function
;
1719 /* Add appropriate libgcc specs to OBSTACK, taking into account
1720 various permutations of -shared-libgcc, -shared, and such. */
1722 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1724 #ifndef USE_LD_AS_NEEDED
1725 #define USE_LD_AS_NEEDED 0
1729 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1730 const char *static_name
, const char *eh_name
)
1734 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1735 "%{!static:%{!static-libgcc:"
1736 #if USE_LD_AS_NEEDED
1737 "%{!shared-libgcc:",
1738 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1741 shared_name
, "%{!shared: ", static_name
, "}"
1745 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1746 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1750 "%{shared-libgcc:", shared_name
, "}"
1751 "%{!shared-libgcc:", static_name
, "}"
1754 "%{shared:", shared_name
, "}"
1759 obstack_grow (obstack
, buf
, strlen (buf
));
1762 #endif /* ENABLE_SHARED_LIBGCC */
1764 /* Initialize the specs lookup routines. */
1769 struct spec_list
*next
= (struct spec_list
*) 0;
1770 struct spec_list
*sl
= (struct spec_list
*) 0;
1774 return; /* Already initialized. */
1777 fnotice (stderr
, "Using built-in specs.\n");
1780 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1782 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1784 sl
= &extra_specs
[i
];
1785 sl
->name
= extra_specs_1
[i
].name
;
1786 sl
->ptr
= extra_specs_1
[i
].ptr
;
1788 sl
->name_len
= strlen (sl
->name
);
1789 sl
->ptr_spec
= &sl
->ptr
;
1794 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1796 sl
= &static_specs
[i
];
1801 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1802 /* ??? If neither -shared-libgcc nor --static-libgcc was
1803 seen, then we should be making an educated guess. Some proposed
1804 heuristics for ELF include:
1806 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1807 program will be doing dynamic loading, which will likely
1808 need the shared libgcc.
1810 (2) If "-ldl", then it's also a fair bet that we're doing
1813 (3) For each ET_DYN we're linking against (either through -lfoo
1814 or /some/path/foo.so), check to see whether it or one of
1815 its dependencies depends on a shared libgcc.
1819 If the runtime is fixed to look for program headers instead
1820 of calling __register_frame_info at all, for each object,
1821 use the shared libgcc if any EH symbol referenced.
1823 If crtstuff is fixed to not invoke __register_frame_info
1824 automatically, for each object, use the shared libgcc if
1825 any non-empty unwind section found.
1827 Doing any of this probably requires invoking an external program to
1828 do the actual object file scanning. */
1830 const char *p
= libgcc_spec
;
1833 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1834 when given the proper command line arguments. */
1837 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1839 init_gcc_specs (&obstack
,
1841 #ifdef USE_LIBUNWIND_EXCEPTIONS
1847 #ifdef USE_LIBUNWIND_EXCEPTIONS
1848 # ifdef HAVE_LD_STATIC_DYNAMIC
1849 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1859 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1861 /* Ug. We don't know shared library extensions. Hope that
1862 systems that use this form don't do shared libraries. */
1863 init_gcc_specs (&obstack
,
1867 #ifdef USE_LIBUNWIND_EXCEPTIONS
1876 obstack_1grow (&obstack
, *p
);
1877 in_sep
= (*p
== ' ');
1882 obstack_1grow (&obstack
, '\0');
1883 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1886 #ifdef USE_AS_TRADITIONAL_FORMAT
1887 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1889 static const char tf
[] = "--traditional-format ";
1890 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1891 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1892 asm_spec
= XOBFINISH (&obstack
, const char *);
1896 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1897 # ifdef LINK_BUILDID_SPEC
1898 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1899 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1901 # ifdef LINK_EH_SPEC
1902 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1903 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1905 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1906 link_spec
= XOBFINISH (&obstack
, const char *);
1912 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1913 removed; If the spec starts with a + then SPEC is added to the end of the
1917 set_spec (const char *name
, const char *spec
)
1919 struct spec_list
*sl
;
1920 const char *old_spec
;
1921 int name_len
= strlen (name
);
1924 /* If this is the first call, initialize the statically allocated specs. */
1927 struct spec_list
*next
= (struct spec_list
*) 0;
1928 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1930 sl
= &static_specs
[i
];
1937 /* See if the spec already exists. */
1938 for (sl
= specs
; sl
; sl
= sl
->next
)
1939 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1944 /* Not found - make it. */
1945 sl
= XNEW (struct spec_list
);
1946 sl
->name
= xstrdup (name
);
1947 sl
->name_len
= name_len
;
1948 sl
->ptr_spec
= &sl
->ptr
;
1950 *(sl
->ptr_spec
) = "";
1955 old_spec
= *(sl
->ptr_spec
);
1956 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1957 ? concat (old_spec
, spec
+ 1, NULL
)
1962 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1965 /* Free the old spec. */
1966 if (old_spec
&& sl
->alloc_p
)
1967 free (CONST_CAST(char *, old_spec
));
1972 /* Accumulate a command (program name and args), and run it. */
1974 /* Vector of pointers to arguments in the current line of specifications. */
1976 static const char **argbuf
;
1978 /* Number of elements allocated in argbuf. */
1980 static int argbuf_length
;
1982 /* Number of elements in argbuf currently in use (containing args). */
1984 static int argbuf_index
;
1986 /* Position in the argbuf array containing the name of the output file
1987 (the value associated with the "-o" flag). */
1989 static int have_o_argbuf_index
= 0;
1991 /* Were the options -c, -S or -E passed. */
1992 static int have_c
= 0;
1994 /* Was the option -o passed. */
1995 static int have_o
= 0;
1997 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1998 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2001 static struct temp_name
{
2002 const char *suffix
; /* suffix associated with the code. */
2003 int length
; /* strlen (suffix). */
2004 int unique
; /* Indicates whether %g or %u/%U was used. */
2005 const char *filename
; /* associated filename. */
2006 int filename_length
; /* strlen (filename). */
2007 struct temp_name
*next
;
2010 /* Number of commands executed so far. */
2012 static int execution_count
;
2014 /* Number of commands that exited with a signal. */
2016 static int signal_count
;
2018 /* Allocate the argument vector. */
2024 argbuf
= XNEWVEC (const char *, argbuf_length
);
2027 /* Clear out the vector of arguments (after a command is executed). */
2035 /* Add one argument to the vector at the end.
2036 This is done when a space is seen or at the end of the line.
2037 If DELETE_ALWAYS is nonzero, the arg is a filename
2038 and the file should be deleted eventually.
2039 If DELETE_FAILURE is nonzero, the arg is a filename
2040 and the file should be deleted if this compilation fails. */
2043 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2045 if (argbuf_index
+ 1 == argbuf_length
)
2046 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
2048 argbuf
[argbuf_index
++] = arg
;
2049 argbuf
[argbuf_index
] = 0;
2051 if (strcmp (arg
, "-o") == 0)
2052 have_o_argbuf_index
= argbuf_index
;
2053 if (delete_always
|| delete_failure
)
2056 /* If the temporary file we should delete is specified as
2057 part of a joined argument extract the filename. */
2059 && (p
= strrchr (arg
, '=')))
2061 record_temp_file (arg
, delete_always
, delete_failure
);
2065 /* Load specs from a file name named FILENAME, replacing occurrences of
2066 various different types of line-endings, \r\n, \n\r and just \r, with
2070 load_specs (const char *filename
)
2074 struct stat statbuf
;
2081 fnotice (stderr
, "Reading specs from %s\n", filename
);
2083 /* Open and stat the file. */
2084 desc
= open (filename
, O_RDONLY
, 0);
2086 pfatal_with_name (filename
);
2087 if (stat (filename
, &statbuf
) < 0)
2088 pfatal_with_name (filename
);
2090 /* Read contents of file into BUFFER. */
2091 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2092 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2094 pfatal_with_name (filename
);
2095 buffer
[readlen
] = 0;
2098 specs
= XNEWVEC (char, readlen
+ 1);
2100 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2106 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2108 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2122 /* Read compilation specs from a file named FILENAME,
2123 replacing the default ones.
2125 A suffix which starts with `*' is a definition for
2126 one of the machine-specific sub-specs. The "suffix" should be
2127 *asm, *cc1, *cpp, *link, *startfile, etc.
2128 The corresponding spec is stored in asm_spec, etc.,
2129 rather than in the `compilers' vector.
2131 Anything invalid in the file is a fatal error. */
2134 read_specs (const char *filename
, int main_p
)
2139 buffer
= load_specs (filename
);
2141 /* Scan BUFFER for specs, putting them in the vector. */
2147 char *in
, *out
, *p1
, *p2
, *p3
;
2149 /* Advance P in BUFFER to the next nonblank nocomment line. */
2150 p
= skip_whitespace (p
);
2154 /* Is this a special command that starts with '%'? */
2155 /* Don't allow this for the main specs file, since it would
2156 encourage people to overwrite it. */
2157 if (*p
== '%' && !main_p
)
2160 while (*p
&& *p
!= '\n')
2166 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2167 && (p1
[sizeof "%include" - 1] == ' '
2168 || p1
[sizeof "%include" - 1] == '\t'))
2172 p1
+= sizeof ("%include");
2173 while (*p1
== ' ' || *p1
== '\t')
2176 if (*p1
++ != '<' || p
[-2] != '>')
2177 fatal_error ("specs %%include syntax malformed after "
2179 (long) (p1
- buffer
+ 1));
2182 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2183 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2186 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2187 && (p1
[sizeof "%include_noerr" - 1] == ' '
2188 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2192 p1
+= sizeof "%include_noerr";
2193 while (*p1
== ' ' || *p1
== '\t')
2196 if (*p1
++ != '<' || p
[-2] != '>')
2197 fatal_error ("specs %%include syntax malformed after "
2199 (long) (p1
- buffer
+ 1));
2202 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2204 read_specs (new_filename
, FALSE
);
2205 else if (verbose_flag
)
2206 fnotice (stderr
, "could not find specs file %s\n", p1
);
2209 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2210 && (p1
[sizeof "%rename" - 1] == ' '
2211 || p1
[sizeof "%rename" - 1] == '\t'))
2214 struct spec_list
*sl
;
2215 struct spec_list
*newsl
;
2217 /* Get original name. */
2218 p1
+= sizeof "%rename";
2219 while (*p1
== ' ' || *p1
== '\t')
2222 if (! ISALPHA ((unsigned char) *p1
))
2223 fatal_error ("specs %%rename syntax malformed after "
2225 (long) (p1
- buffer
));
2228 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2231 if (*p2
!= ' ' && *p2
!= '\t')
2232 fatal_error ("specs %%rename syntax malformed after "
2234 (long) (p2
- buffer
));
2238 while (*p2
== ' ' || *p2
== '\t')
2241 if (! ISALPHA ((unsigned char) *p2
))
2242 fatal_error ("specs %%rename syntax malformed after "
2244 (long) (p2
- buffer
));
2246 /* Get new spec name. */
2248 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2252 fatal_error ("specs %%rename syntax malformed after "
2254 (long) (p3
- buffer
));
2257 for (sl
= specs
; sl
; sl
= sl
->next
)
2258 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2262 fatal_error ("specs %s spec was not found to be renamed", p1
);
2264 if (strcmp (p1
, p2
) == 0)
2267 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2268 if (strcmp (newsl
->name
, p2
) == 0)
2269 fatal_error ("%s: attempt to rename spec %qs to "
2270 "already defined spec %qs",
2275 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2277 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2281 set_spec (p2
, *(sl
->ptr_spec
));
2283 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2285 *(sl
->ptr_spec
) = "";
2290 fatal_error ("specs unknown %% command after %ld characters",
2291 (long) (p1
- buffer
));
2294 /* Find the colon that should end the suffix. */
2296 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2299 /* The colon shouldn't be missing. */
2301 fatal_error ("specs file malformed after %ld characters",
2302 (long) (p1
- buffer
));
2304 /* Skip back over trailing whitespace. */
2306 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2309 /* Copy the suffix to a string. */
2310 suffix
= save_string (p
, p2
- p
);
2311 /* Find the next line. */
2312 p
= skip_whitespace (p1
+ 1);
2314 fatal_error ("specs file malformed after %ld characters",
2315 (long) (p
- buffer
));
2318 /* Find next blank line or end of string. */
2319 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2322 /* Specs end at the blank line and do not include the newline. */
2323 spec
= save_string (p
, p1
- p
);
2326 /* Delete backslash-newline sequences from the spec. */
2331 if (in
[0] == '\\' && in
[1] == '\n')
2333 else if (in
[0] == '#')
2334 while (*in
&& *in
!= '\n')
2342 if (suffix
[0] == '*')
2344 if (! strcmp (suffix
, "*link_command"))
2345 link_command_spec
= spec
;
2347 set_spec (suffix
+ 1, spec
);
2351 /* Add this pair to the vector. */
2353 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2355 compilers
[n_compilers
].suffix
= suffix
;
2356 compilers
[n_compilers
].spec
= spec
;
2358 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2362 link_command_spec
= spec
;
2365 if (link_command_spec
== 0)
2366 fatal_error ("spec file has no spec for linking");
2369 /* Record the names of temporary files we tell compilers to write,
2370 and delete them at the end of the run. */
2372 /* This is the common prefix we use to make temp file names.
2373 It is chosen once for each run of this program.
2374 It is substituted into a spec by %g or %j.
2375 Thus, all temp file names contain this prefix.
2376 In practice, all temp file names start with this prefix.
2378 This prefix comes from the envvar TMPDIR if it is defined;
2379 otherwise, from the P_tmpdir macro if that is defined;
2380 otherwise, in /usr/tmp or /tmp;
2381 or finally the current directory if all else fails. */
2383 static const char *temp_filename
;
2385 /* Length of the prefix. */
2387 static int temp_filename_length
;
2389 /* Define the list of temporary files to delete. */
2394 struct temp_file
*next
;
2397 /* Queue of files to delete on success or failure of compilation. */
2398 static struct temp_file
*always_delete_queue
;
2399 /* Queue of files to delete on failure of compilation. */
2400 static struct temp_file
*failure_delete_queue
;
2402 /* Record FILENAME as a file to be deleted automatically.
2403 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2404 otherwise delete it in any case.
2405 FAIL_DELETE nonzero means delete it if a compilation step fails;
2406 otherwise delete it in any case. */
2409 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2411 char *const name
= xstrdup (filename
);
2415 struct temp_file
*temp
;
2416 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2417 if (! strcmp (name
, temp
->name
))
2420 temp
= XNEW (struct temp_file
);
2421 temp
->next
= always_delete_queue
;
2423 always_delete_queue
= temp
;
2430 struct temp_file
*temp
;
2431 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2432 if (! strcmp (name
, temp
->name
))
2435 temp
= XNEW (struct temp_file
);
2436 temp
->next
= failure_delete_queue
;
2438 failure_delete_queue
= temp
;
2444 /* Delete all the temporary files whose names we previously recorded. */
2446 #ifndef DELETE_IF_ORDINARY
2447 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2450 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2451 if (unlink (NAME) < 0) \
2453 perror_with_name (NAME); \
2458 delete_if_ordinary (const char *name
)
2464 printf ("Delete %s? (y or n) ", name
);
2468 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2471 if (i
== 'y' || i
== 'Y')
2473 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2477 delete_temp_files (void)
2479 struct temp_file
*temp
;
2481 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2482 delete_if_ordinary (temp
->name
);
2483 always_delete_queue
= 0;
2486 /* Delete all the files to be deleted on error. */
2489 delete_failure_queue (void)
2491 struct temp_file
*temp
;
2493 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2494 delete_if_ordinary (temp
->name
);
2498 clear_failure_queue (void)
2500 failure_delete_queue
= 0;
2503 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2505 If DO_MULTI is true iterate over the paths twice, first with multilib
2506 suffix then without, otherwise iterate over the paths once without
2507 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2508 to avoid visiting the same path twice, but we could do better. For
2509 instance, /usr/lib/../lib is considered different from /usr/lib.
2510 At least EXTRA_SPACE chars past the end of the path passed to
2511 CALLBACK are available for use by the callback.
2512 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2514 Returns the value returned by CALLBACK. */
2517 for_each_path (const struct path_prefix
*paths
,
2520 void *(*callback
) (char *, void *),
2521 void *callback_info
)
2523 struct prefix_list
*pl
;
2524 const char *multi_dir
= NULL
;
2525 const char *multi_os_dir
= NULL
;
2526 const char *multi_suffix
;
2527 const char *just_multi_suffix
;
2530 bool skip_multi_dir
= false;
2531 bool skip_multi_os_dir
= false;
2533 multi_suffix
= machine_suffix
;
2534 just_multi_suffix
= just_machine_suffix
;
2535 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2537 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2538 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2539 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2541 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2542 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2546 size_t multi_dir_len
= 0;
2547 size_t multi_os_dir_len
= 0;
2549 size_t just_suffix_len
;
2553 multi_dir_len
= strlen (multi_dir
);
2555 multi_os_dir_len
= strlen (multi_os_dir
);
2556 suffix_len
= strlen (multi_suffix
);
2557 just_suffix_len
= strlen (just_multi_suffix
);
2561 len
= paths
->max_len
+ extra_space
+ 1;
2562 if (suffix_len
> multi_os_dir_len
)
2565 len
+= multi_os_dir_len
;
2566 path
= XNEWVEC (char, len
);
2569 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2571 len
= strlen (pl
->prefix
);
2572 memcpy (path
, pl
->prefix
, len
);
2574 /* Look first in MACHINE/VERSION subdirectory. */
2575 if (!skip_multi_dir
)
2577 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2578 ret
= callback (path
, callback_info
);
2583 /* Some paths are tried with just the machine (ie. target)
2584 subdir. This is used for finding as, ld, etc. */
2586 && pl
->require_machine_suffix
== 2)
2588 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2589 ret
= callback (path
, callback_info
);
2594 /* Now try the base path. */
2595 if (!pl
->require_machine_suffix
2596 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2598 const char *this_multi
;
2599 size_t this_multi_len
;
2601 if (pl
->os_multilib
)
2603 this_multi
= multi_os_dir
;
2604 this_multi_len
= multi_os_dir_len
;
2608 this_multi
= multi_dir
;
2609 this_multi_len
= multi_dir_len
;
2613 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2617 ret
= callback (path
, callback_info
);
2625 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2628 /* Run through the paths again, this time without multilibs.
2629 Don't repeat any we have already seen. */
2632 free (CONST_CAST (char *, multi_dir
));
2634 free (CONST_CAST (char *, multi_suffix
));
2635 multi_suffix
= machine_suffix
;
2636 free (CONST_CAST (char *, just_multi_suffix
));
2637 just_multi_suffix
= just_machine_suffix
;
2640 skip_multi_dir
= true;
2643 free (CONST_CAST (char *, multi_os_dir
));
2644 multi_os_dir
= NULL
;
2647 skip_multi_os_dir
= true;
2652 free (CONST_CAST (char *, multi_dir
));
2653 free (CONST_CAST (char *, multi_suffix
));
2654 free (CONST_CAST (char *, just_multi_suffix
));
2657 free (CONST_CAST (char *, multi_os_dir
));
2663 /* Callback for build_search_list. Adds path to obstack being built. */
2665 struct add_to_obstack_info
{
2672 add_to_obstack (char *path
, void *data
)
2674 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2676 if (info
->check_dir
&& !is_directory (path
, false))
2679 if (!info
->first_time
)
2680 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2682 obstack_grow (info
->ob
, path
, strlen (path
));
2684 info
->first_time
= false;
2688 /* Add or change the value of an environment variable, outputting the
2689 change to standard error if in verbose mode. */
2691 xputenv (const char *string
)
2694 fnotice (stderr
, "%s\n", string
);
2695 putenv (CONST_CAST (char *, string
));
2698 /* Build a list of search directories from PATHS.
2699 PREFIX is a string to prepend to the list.
2700 If CHECK_DIR_P is true we ensure the directory exists.
2701 If DO_MULTI is true, multilib paths are output first, then
2703 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2704 It is also used by the --print-search-dirs flag. */
2707 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2708 bool check_dir
, bool do_multi
)
2710 struct add_to_obstack_info info
;
2712 info
.ob
= &collect_obstack
;
2713 info
.check_dir
= check_dir
;
2714 info
.first_time
= true;
2716 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2717 obstack_1grow (&collect_obstack
, '=');
2719 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2721 obstack_1grow (&collect_obstack
, '\0');
2722 return XOBFINISH (&collect_obstack
, char *);
2725 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2729 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2732 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2735 /* Check whether NAME can be accessed in MODE. This is like access,
2736 except that it never considers directories to be executable. */
2739 access_check (const char *name
, int mode
)
2745 if (stat (name
, &st
) < 0
2746 || S_ISDIR (st
.st_mode
))
2750 return access (name
, mode
);
2753 /* Callback for find_a_file. Appends the file name to the directory
2754 path. If the resulting file exists in the right mode, return the
2755 full pathname to the file. */
2757 struct file_at_path_info
{
2766 file_at_path (char *path
, void *data
)
2768 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2769 size_t len
= strlen (path
);
2771 memcpy (path
+ len
, info
->name
, info
->name_len
);
2772 len
+= info
->name_len
;
2774 /* Some systems have a suffix for executable files.
2775 So try appending that first. */
2776 if (info
->suffix_len
)
2778 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2779 if (access_check (path
, info
->mode
) == 0)
2784 if (access_check (path
, info
->mode
) == 0)
2790 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2791 access to check permissions. If DO_MULTI is true, search multilib
2792 paths then non-multilib paths, otherwise do not search multilib paths.
2793 Return 0 if not found, otherwise return its name, allocated with malloc. */
2796 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2799 struct file_at_path_info info
;
2801 #ifdef DEFAULT_ASSEMBLER
2802 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2803 return xstrdup (DEFAULT_ASSEMBLER
);
2806 #ifdef DEFAULT_LINKER
2807 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2808 return xstrdup (DEFAULT_LINKER
);
2811 /* Determine the filename to execute (special case for absolute paths). */
2813 if (IS_ABSOLUTE_PATH (name
))
2815 if (access (name
, mode
) == 0)
2816 return xstrdup (name
);
2822 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2823 info
.name_len
= strlen (info
.name
);
2824 info
.suffix_len
= strlen (info
.suffix
);
2827 return (char*) for_each_path (pprefix
, do_multi
,
2828 info
.name_len
+ info
.suffix_len
,
2829 file_at_path
, &info
);
2832 /* Ranking of prefixes in the sort list. -B prefixes are put before
2835 enum path_prefix_priority
2837 PREFIX_PRIORITY_B_OPT
,
2838 PREFIX_PRIORITY_LAST
2841 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2842 order according to PRIORITY. Within each PRIORITY, new entries are
2845 If WARN is nonzero, we will warn if no file is found
2846 through this prefix. WARN should point to an int
2847 which will be set to 1 if this entry is used.
2849 COMPONENT is the value to be passed to update_path.
2851 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2852 the complete value of machine_suffix.
2853 2 means try both machine_suffix and just_machine_suffix. */
2856 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2857 const char *component
, /* enum prefix_priority */ int priority
,
2858 int require_machine_suffix
, int os_multilib
)
2860 struct prefix_list
*pl
, **prev
;
2863 for (prev
= &pprefix
->plist
;
2864 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2865 prev
= &(*prev
)->next
)
2868 /* Keep track of the longest prefix. */
2870 prefix
= update_path (prefix
, component
);
2871 len
= strlen (prefix
);
2872 if (len
> pprefix
->max_len
)
2873 pprefix
->max_len
= len
;
2875 pl
= XNEW (struct prefix_list
);
2876 pl
->prefix
= prefix
;
2877 pl
->require_machine_suffix
= require_machine_suffix
;
2878 pl
->priority
= priority
;
2879 pl
->os_multilib
= os_multilib
;
2881 /* Insert after PREV. */
2886 /* Same as add_prefix, but prepending target_system_root to prefix. */
2887 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2889 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2890 const char *component
,
2891 /* enum prefix_priority */ int priority
,
2892 int require_machine_suffix
, int os_multilib
)
2894 if (!IS_ABSOLUTE_PATH (prefix
))
2895 fatal_error ("system path %qs is not absolute", prefix
);
2897 if (target_system_root
)
2899 if (target_sysroot_suffix
)
2900 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2901 prefix
= concat (target_system_root
, prefix
, NULL
);
2903 /* We have to override this because GCC's notion of sysroot
2904 moves along with GCC. */
2908 add_prefix (pprefix
, prefix
, component
, priority
,
2909 require_machine_suffix
, os_multilib
);
2912 /* Execute the command specified by the arguments on the current line of spec.
2913 When using pipes, this includes several piped-together commands
2914 with `|' between them.
2916 Return 0 if successful, -1 if failed. */
2922 int n_commands
; /* # of command. */
2924 struct pex_obj
*pex
;
2927 const char *prog
; /* program name. */
2928 const char **argv
; /* vector of args. */
2931 struct command
*commands
; /* each command buffer with above info. */
2933 gcc_assert (!processing_spec_function
);
2937 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2938 argbuf
[0] = (string
) ? string
: argbuf
[0];
2939 insert_wrapper (wrapper_string
);
2942 /* Count # of piped commands. */
2943 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2944 if (strcmp (argbuf
[i
], "|") == 0)
2947 /* Get storage for each command. */
2948 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2950 /* Split argbuf into its separate piped processes,
2951 and record info about each one.
2952 Also search for the programs that are to be run. */
2954 commands
[0].prog
= argbuf
[0]; /* first command. */
2955 commands
[0].argv
= &argbuf
[0];
2957 if (!wrapper_string
)
2959 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2960 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2963 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2964 if (strcmp (argbuf
[i
], "|") == 0)
2965 { /* each command. */
2966 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2967 fatal_error ("-pipe not supported");
2969 argbuf
[i
] = 0; /* termination of command args. */
2970 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2971 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2972 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2975 commands
[n_commands
].argv
[0] = string
;
2979 argbuf
[argbuf_index
] = 0;
2981 /* If -v, print what we are about to do, and maybe query. */
2985 /* For help listings, put a blank line between sub-processes. */
2986 if (print_help_list
)
2987 fputc ('\n', stderr
);
2989 /* Print each piped command as a separate line. */
2990 for (i
= 0; i
< n_commands
; i
++)
2992 const char *const *j
;
2994 if (verbose_only_flag
)
2996 for (j
= commands
[i
].argv
; *j
; j
++)
2999 for (p
= *j
; *p
; ++p
)
3000 if (!ISALNUM ((unsigned char) *p
)
3001 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3005 fprintf (stderr
, " \"");
3006 for (p
= *j
; *p
; ++p
)
3008 if (*p
== '"' || *p
== '\\' || *p
== '$')
3009 fputc ('\\', stderr
);
3012 fputc ('"', stderr
);
3015 fprintf (stderr
, " %s", *j
);
3019 for (j
= commands
[i
].argv
; *j
; j
++)
3020 fprintf (stderr
, " %s", *j
);
3022 /* Print a pipe symbol after all but the last command. */
3023 if (i
+ 1 != n_commands
)
3024 fprintf (stderr
, " |");
3025 fprintf (stderr
, "\n");
3028 if (verbose_only_flag
!= 0)
3030 /* verbose_only_flag should act as if the spec was
3031 executed, so increment execution_count before
3032 returning. This prevents spurious warnings about
3033 unused linker input files, etc. */
3038 fnotice (stderr
, "\nGo ahead? (y or n) ");
3042 while (getchar () != '\n')
3045 if (i
!= 'y' && i
!= 'Y')
3050 #ifdef ENABLE_VALGRIND_CHECKING
3051 /* Run the each command through valgrind. To simplify prepending the
3052 path to valgrind and the option "-q" (for quiet operation unless
3053 something triggers), we allocate a separate argv array. */
3055 for (i
= 0; i
< n_commands
; i
++)
3061 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3064 argv
= XALLOCAVEC (const char *, argc
+ 3);
3066 argv
[0] = VALGRIND_PATH
;
3068 for (j
= 2; j
< argc
+ 2; j
++)
3069 argv
[j
] = commands
[i
].argv
[j
- 2];
3072 commands
[i
].argv
= argv
;
3073 commands
[i
].prog
= argv
[0];
3077 /* Run each piped subprocess. */
3079 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3080 ? PEX_RECORD_TIMES
: 0),
3081 progname
, temp_filename
);
3083 fatal_error ("pex_init failed: %m");
3085 for (i
= 0; i
< n_commands
; i
++)
3089 const char *string
= commands
[i
].argv
[0];
3091 errmsg
= pex_run (pex
,
3092 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3093 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3094 string
, CONST_CAST (char **, commands
[i
].argv
),
3099 fatal_error (errmsg
);
3103 pfatal_with_name (errmsg
);
3107 if (string
!= commands
[i
].prog
)
3108 free (CONST_CAST (char *, string
));
3113 /* Wait for all the subprocesses to finish. */
3117 struct pex_time
*times
= NULL
;
3120 statuses
= (int *) alloca (n_commands
* sizeof (int));
3121 if (!pex_get_status (pex
, n_commands
, statuses
))
3122 fatal_error ("failed to get exit status: %m");
3124 if (report_times
|| report_times_to_file
)
3126 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3127 if (!pex_get_times (pex
, n_commands
, times
))
3128 fatal_error ("failed to get process times: %m");
3133 for (i
= 0; i
< n_commands
; ++i
)
3135 int status
= statuses
[i
];
3137 if (WIFSIGNALED (status
))
3140 /* SIGPIPE is a special case. It happens in -pipe mode
3141 when the compiler dies before the preprocessor is done,
3142 or the assembler dies before the compiler is done.
3143 There's generally been an error already, and this is
3144 just fallout. So don't generate another error unless
3145 we would otherwise have succeeded. */
3146 if (WTERMSIG (status
) == SIGPIPE
3147 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3154 internal_error ("%s (program %s)",
3155 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
3157 else if (WIFEXITED (status
)
3158 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3160 if (WEXITSTATUS (status
) > greatest_status
)
3161 greatest_status
= WEXITSTATUS (status
);
3165 if (report_times
|| report_times_to_file
)
3167 struct pex_time
*pt
= ×
[i
];
3170 ut
= ((double) pt
->user_seconds
3171 + (double) pt
->user_microseconds
/ 1.0e6
);
3172 st
= ((double) pt
->system_seconds
3173 + (double) pt
->system_microseconds
/ 1.0e6
);
3178 fnotice (stderr
, "# %s %.2f %.2f\n",
3179 commands
[i
].prog
, ut
, st
);
3181 if (report_times_to_file
)
3184 const char *const *j
;
3186 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3188 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3191 for (p
= *j
; *p
; ++p
)
3192 if (*p
== '"' || *p
== '\\' || *p
== '$'
3198 fprintf (report_times_to_file
, " \"");
3199 for (p
= *j
; *p
; ++p
)
3201 if (*p
== '"' || *p
== '\\' || *p
== '$')
3202 fputc ('\\', report_times_to_file
);
3203 fputc (*p
, report_times_to_file
);
3205 fputc ('"', report_times_to_file
);
3208 fprintf (report_times_to_file
, " %s", *j
);
3211 fputc ('\n', report_times_to_file
);
3221 /* Find all the switches given to us
3222 and make a vector describing them.
3223 The elements of the vector are strings, one per switch given.
3224 If a switch uses following arguments, then the `part1' field
3225 is the switch itself and the `args' field
3226 is a null-terminated vector containing the following arguments.
3227 Bits in the `live_cond' field are:
3228 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3229 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3230 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3231 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3232 in all do_spec calls afterwards. Used for %<S from self specs.
3233 The `validated' field is nonzero if any spec has looked at this switch;
3234 if it remains zero at the end of the run, it must be meaningless. */
3236 #define SWITCH_LIVE 0x1
3237 #define SWITCH_FALSE 0x2
3238 #define SWITCH_IGNORE 0x4
3239 #define SWITCH_IGNORE_PERMANENTLY 0x8
3245 unsigned int live_cond
;
3246 unsigned char validated
;
3247 unsigned char ordering
;
3250 static struct switchstr
*switches
;
3252 static int n_switches
;
3254 static int n_switches_alloc
;
3256 /* Set to zero if -fcompare-debug is disabled, positive if it's
3257 enabled and we're running the first compilation, negative if it's
3258 enabled and we're running the second compilation. For most of the
3259 time, it's in the range -1..1, but it can be temporarily set to 2
3260 or 3 to indicate that the -fcompare-debug flags didn't come from
3261 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3262 variable, until a synthesized -fcompare-debug flag is added to the
3266 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3267 int compare_debug_second
;
3269 /* Set to the flags that should be passed to the second compilation in
3270 a -fcompare-debug compilation. */
3271 const char *compare_debug_opt
;
3273 static struct switchstr
*switches_debug_check
[2];
3275 static int n_switches_debug_check
[2];
3277 static char *debug_check_temp_file
[2];
3279 /* Language is one of three things:
3281 1) The name of a real programming language.
3282 2) NULL, indicating that no one has figured out
3284 3) '*', indicating that the file should be passed
3289 const char *language
;
3290 struct compiler
*incompiler
;
3295 /* Also a vector of input files specified. */
3297 static struct infile
*infiles
;
3301 static int n_infiles_alloc
;
3303 /* True if multiple input files are being compiled to a single
3306 static bool combine_inputs
;
3308 /* This counts the number of libraries added by lang_specific_driver, so that
3309 we can tell if there were any user supplied any files or libraries. */
3311 static int added_libraries
;
3313 /* And a vector of corresponding output files is made up later. */
3315 const char **outfiles
;
3317 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3319 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3320 is true if we should look for an executable suffix. DO_OBJ
3321 is true if we should look for an object suffix. */
3324 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3325 int do_obj ATTRIBUTE_UNUSED
)
3327 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3335 len
= strlen (name
);
3337 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3338 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3339 if (do_obj
&& len
> 2
3340 && name
[len
- 2] == '.'
3341 && name
[len
- 1] == 'o')
3343 obstack_grow (&obstack
, name
, len
- 2);
3344 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3345 name
= XOBFINISH (&obstack
, const char *);
3349 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3350 /* If there is no filetype, make it the executable suffix (which includes
3351 the "."). But don't get confused if we have just "-o". */
3352 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3355 for (i
= len
- 1; i
>= 0; i
--)
3356 if (IS_DIR_SEPARATOR (name
[i
]))
3359 for (i
++; i
< len
; i
++)
3363 obstack_grow (&obstack
, name
, len
);
3364 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3365 strlen (TARGET_EXECUTABLE_SUFFIX
));
3366 name
= XOBFINISH (&obstack
, const char *);
3373 /* Display the command line switches accepted by gcc. */
3377 printf (_("Usage: %s [options] file...\n"), progname
);
3378 fputs (_("Options:\n"), stdout
);
3380 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3381 fputs (_(" --help Display this information\n"), stdout
);
3382 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3383 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3384 fputs (_(" Display specific types of command line options\n"), stdout
);
3386 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3387 fputs (_(" --version Display compiler version information\n"), stdout
);
3388 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3389 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3390 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3391 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3392 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3393 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3394 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3395 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3397 -print-multi-lib Display the mapping between command line options and\n\
3398 multiple library search directories\n"), stdout
);
3399 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3400 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3401 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3402 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3403 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3404 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3405 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3406 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3407 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3408 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3409 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3410 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3412 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3413 prefixes to other gcc components\n"), stdout
);
3414 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3415 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3416 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3417 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3419 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3420 and libraries\n"), stdout
);
3421 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3422 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3423 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3424 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3425 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3426 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3427 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3429 -x <language> Specify the language of the following input files\n\
3430 Permissible languages include: c c++ assembler none\n\
3431 'none' means revert to the default behavior of\n\
3432 guessing the language based on the file's extension\n\
3436 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3437 passed on to the various sub-processes invoked by %s. In order to pass\n\
3438 other options on to these processes the -W<letter> options must be used.\n\
3441 /* The rest of the options are displayed by invocations of the various
3446 add_preprocessor_option (const char *option
, int len
)
3448 n_preprocessor_options
++;
3450 if (! preprocessor_options
)
3451 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3453 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3454 n_preprocessor_options
);
3456 preprocessor_options
[n_preprocessor_options
- 1] =
3457 save_string (option
, len
);
3461 add_assembler_option (const char *option
, int len
)
3463 n_assembler_options
++;
3465 if (! assembler_options
)
3466 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3468 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3469 n_assembler_options
);
3471 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3475 add_linker_option (const char *option
, int len
)
3479 if (! linker_options
)
3480 linker_options
= XNEWVEC (char *, n_linker_options
);
3482 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3484 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3487 /* Allocate space for an input file in infiles. */
3492 if (n_infiles_alloc
== 0)
3494 n_infiles_alloc
= 16;
3495 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3497 else if (n_infiles_alloc
== n_infiles
)
3499 n_infiles_alloc
*= 2;
3500 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3504 /* Store an input file with the given NAME and LANGUAGE in
3508 add_infile (const char *name
, const char *language
)
3511 infiles
[n_infiles
].name
= name
;
3512 infiles
[n_infiles
++].language
= language
;
3515 /* Allocate space for a switch in switches. */
3520 if (n_switches_alloc
== 0)
3522 n_switches_alloc
= 16;
3523 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3525 else if (n_switches_alloc
== n_switches
)
3527 n_switches_alloc
*= 2;
3528 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3532 /* Create the vector `switches' and its contents.
3533 Store its length in `n_switches'. */
3536 process_command (int argc
, const char **argv
)
3541 const char *spec_lang
= 0;
3542 int last_language_n_infiles
;
3543 const char *tooldir_prefix
;
3544 char *(*get_relative_prefix
) (const char *, const char *,
3545 const char *) = NULL
;
3547 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3551 added_libraries
= 0;
3553 /* Figure compiler version from version string. */
3555 compiler_version
= temp1
= xstrdup (version_string
);
3557 for (; *temp1
; ++temp1
)
3566 /* Convert new-style -- options to old-style. */
3567 translate_options (&argc
,
3568 CONST_CAST2 (const char *const **, const char ***,
3571 /* Handle any -no-canonical-prefixes flag early, to assign the function
3572 that builds relative prefixes. This function creates default search
3573 paths that are needed later in normal option handling. */
3575 for (i
= 1; i
< argc
; i
++)
3577 if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
3579 get_relative_prefix
= make_relative_prefix_ignore_links
;
3583 if (! get_relative_prefix
)
3584 get_relative_prefix
= make_relative_prefix
;
3586 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3587 see if we can create it from the pathname specified in argv[0]. */
3589 gcc_libexec_prefix
= standard_libexec_prefix
;
3591 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3592 if (!gcc_exec_prefix
)
3594 gcc_exec_prefix
= get_relative_prefix (argv
[0],
3595 standard_bindir_prefix
,
3596 standard_exec_prefix
);
3597 gcc_libexec_prefix
= get_relative_prefix (argv
[0],
3598 standard_bindir_prefix
,
3599 standard_libexec_prefix
);
3600 if (gcc_exec_prefix
)
3601 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3605 /* make_relative_prefix requires a program name, but
3606 GCC_EXEC_PREFIX is typically a directory name with a trailing
3607 / (which is ignored by make_relative_prefix), so append a
3609 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3610 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3611 standard_exec_prefix
,
3612 standard_libexec_prefix
);
3614 /* The path is unrelocated, so fallback to the original setting. */
3615 if (!gcc_libexec_prefix
)
3616 gcc_libexec_prefix
= standard_libexec_prefix
;
3622 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3623 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3624 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3626 /* Do language-specific adjustment/addition of flags. */
3627 lang_specific_driver (&argc
,
3628 CONST_CAST2 (const char *const **, const char ***,
3632 if (gcc_exec_prefix
)
3634 int len
= strlen (gcc_exec_prefix
);
3636 if (len
> (int) sizeof ("/lib/gcc/") - 1
3637 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3639 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3640 if (IS_DIR_SEPARATOR (*temp
)
3641 && strncmp (temp
+ 1, "lib", 3) == 0
3642 && IS_DIR_SEPARATOR (temp
[4])
3643 && strncmp (temp
+ 5, "gcc", 3) == 0)
3644 len
-= sizeof ("/lib/gcc/") - 1;
3647 set_std_prefix (gcc_exec_prefix
, len
);
3648 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3649 PREFIX_PRIORITY_LAST
, 0, 0);
3650 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3651 PREFIX_PRIORITY_LAST
, 0, 0);
3654 /* COMPILER_PATH and LIBRARY_PATH have values
3655 that are lists of directory names with colons. */
3657 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3660 const char *startp
, *endp
;
3661 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3663 startp
= endp
= temp
;
3666 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3668 strncpy (nstore
, startp
, endp
- startp
);
3670 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3671 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3673 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3674 nstore
[endp
- startp
+ 1] = 0;
3677 nstore
[endp
- startp
] = 0;
3678 add_prefix (&exec_prefixes
, nstore
, 0,
3679 PREFIX_PRIORITY_LAST
, 0, 0);
3680 add_prefix (&include_prefixes
, nstore
, 0,
3681 PREFIX_PRIORITY_LAST
, 0, 0);
3684 endp
= startp
= endp
+ 1;
3691 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3692 if (temp
&& *cross_compile
== '0')
3694 const char *startp
, *endp
;
3695 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3697 startp
= endp
= temp
;
3700 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3702 strncpy (nstore
, startp
, endp
- startp
);
3704 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3705 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3707 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3708 nstore
[endp
- startp
+ 1] = 0;
3711 nstore
[endp
- startp
] = 0;
3712 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3713 PREFIX_PRIORITY_LAST
, 0, 1);
3716 endp
= startp
= endp
+ 1;
3723 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3724 GET_ENVIRONMENT (temp
, "LPATH");
3725 if (temp
&& *cross_compile
== '0')
3727 const char *startp
, *endp
;
3728 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3730 startp
= endp
= temp
;
3733 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3735 strncpy (nstore
, startp
, endp
- startp
);
3737 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3738 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3740 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3741 nstore
[endp
- startp
+ 1] = 0;
3744 nstore
[endp
- startp
] = 0;
3745 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3746 PREFIX_PRIORITY_LAST
, 0, 1);
3749 endp
= startp
= endp
+ 1;
3756 /* Process the options and store input files and switches in their
3759 last_language_n_infiles
= -1;
3761 for (i
= 1; i
< argc
; i
++)
3763 const char *p
= NULL
;
3766 if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3772 if (! strcmp (argv
[i
], "-dumpspecs"))
3774 struct spec_list
*sl
;
3776 for (sl
= specs
; sl
; sl
= sl
->next
)
3777 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3778 if (link_command_spec
)
3779 printf ("*link_command:\n%s\n\n", link_command_spec
);
3782 else if (! strcmp (argv
[i
], "-dumpversion"))
3784 printf ("%s\n", spec_version
);
3787 else if (! strcmp (argv
[i
], "-dumpmachine"))
3789 printf ("%s\n", spec_machine
);
3792 else if (strcmp (argv
[i
], "-fversion") == 0)
3794 /* translate_options () has turned --version into -fversion. */
3797 /* CPP driver cannot obtain switch from cc1_options. */
3799 add_preprocessor_option ("--version", strlen ("--version"));
3800 add_assembler_option ("--version", strlen ("--version"));
3801 add_linker_option ("--version", strlen ("--version"));
3805 else if (strcmp (argv
[i
], "-fhelp") == 0)
3807 /* translate_options () has turned --help into -fhelp. */
3808 print_help_list
= 1;
3810 /* CPP driver cannot obtain switch from cc1_options. */
3812 add_preprocessor_option ("--help", 6);
3813 add_assembler_option ("--help", 6);
3814 add_linker_option ("--help", 6);
3818 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3820 /* translate_options () has turned --help into -fhelp. */
3821 print_subprocess_help
= 2;
3825 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3827 /* translate_options() has turned --target-help into -ftarget-help. */
3828 print_subprocess_help
= 1;
3830 /* CPP driver cannot obtain switch from cc1_options. */
3832 add_preprocessor_option ("--target-help", 13);
3833 add_assembler_option ("--target-help", 13);
3834 add_linker_option ("--target-help", 13);
3838 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3840 pass_exit_codes
= 1;
3842 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3843 print_search_dirs
= 1;
3844 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3845 print_file_name
= "libgcc.a";
3846 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3847 print_file_name
= argv
[i
] + 17;
3848 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3849 print_prog_name
= argv
[i
] + 17;
3850 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3851 print_multi_lib
= 1;
3852 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3853 print_multi_directory
= 1;
3854 else if (! strcmp (argv
[i
], "-print-sysroot"))
3856 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3857 print_multi_os_directory
= 1;
3858 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3859 print_sysroot_headers_suffix
= 1;
3860 else if (! strcmp (argv
[i
], "-fcompare-debug-second"))
3862 compare_debug_second
= 1;
3865 else if (! strcmp (argv
[i
], "-fno-compare-debug"))
3867 argv
[i
] = "-fcompare-debug=";
3869 goto compare_debug_with_arg
;
3871 else if (! strcmp (argv
[i
], "-fcompare-debug"))
3873 argv
[i
] = "-fcompare-debug=-gtoggle";
3875 goto compare_debug_with_arg
;
3877 #define OPT "-fcompare-debug="
3878 else if (! strncmp (argv
[i
], OPT
, sizeof (OPT
) - 1))
3881 compare_debug_with_arg
:
3882 opt
= argv
[i
] + sizeof (OPT
) - 1;
3888 if (compare_debug
< 0)
3889 compare_debug_opt
= NULL
;
3891 compare_debug_opt
= opt
;
3894 else if (! strncmp (argv
[i
], "-Wa,", 4))
3897 /* Pass the rest of this option to the assembler. */
3899 /* Split the argument at commas. */
3901 for (j
= 4; argv
[i
][j
]; j
++)
3902 if (argv
[i
][j
] == ',')
3904 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3908 /* Record the part after the last comma. */
3909 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3911 else if (! strncmp (argv
[i
], "-Wp,", 4))
3914 /* Pass the rest of this option to the preprocessor. */
3916 /* Split the argument at commas. */
3918 for (j
= 4; argv
[i
][j
]; j
++)
3919 if (argv
[i
][j
] == ',')
3921 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3925 /* Record the part after the last comma. */
3926 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3928 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3931 /* Split the argument at commas. */
3933 for (j
= 4; argv
[i
][j
]; j
++)
3934 if (argv
[i
][j
] == ',')
3936 add_infile (save_string (argv
[i
] + prev
, j
- prev
), "*");
3939 /* Record the part after the last comma. */
3940 add_infile (argv
[i
] + prev
, "*");
3942 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3945 fatal_error ("argument to %<-Xlinker%> is missing");
3947 add_infile (argv
[i
+1], "*");
3950 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3953 fatal_error ("argument to %<-Xpreprocessor%> is missing");
3955 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3958 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3961 fatal_error ("argument to %<-Xassembler%> is missing");
3963 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3966 else if (strcmp (argv
[i
], "-l") == 0)
3969 fatal_error ("argument to %<-l%> is missing");
3971 /* POSIX allows separation of -l and the lib arg;
3972 canonicalize by concatenating -l with its arg */
3973 add_infile (concat ("-l", argv
[i
+ 1], NULL
), "*");
3976 else if (strncmp (argv
[i
], "-l", 2) == 0)
3978 add_infile (argv
[i
], "*");
3980 else if (strcmp (argv
[i
], "-save-temps") == 0)
3982 save_temps_flag
= SAVE_TEMPS_CWD
;
3985 else if (strncmp (argv
[i
], "-save-temps=", 12) == 0)
3987 if (strcmp (argv
[i
]+12, "cwd") == 0)
3988 save_temps_flag
= SAVE_TEMPS_CWD
;
3989 else if (strcmp (argv
[i
]+12, "obj") == 0
3990 || strcmp (argv
[i
]+12, "object") == 0)
3991 save_temps_flag
= SAVE_TEMPS_OBJ
;
3993 fatal_error ("%qs is an unknown -save-temps option", argv
[i
]);
3996 else if (strcmp (argv
[i
], "-no-canonical-prefixes") == 0)
3997 /* Already handled as a special case, so ignored here. */
3999 else if (strcmp (argv
[i
], "-combine") == 0)
4004 else if (strcmp (argv
[i
], "-specs") == 0)
4006 struct user_specs
*user
= XNEW (struct user_specs
);
4008 fatal_error ("argument to %<-specs%> is missing");
4010 user
->next
= (struct user_specs
*) 0;
4011 user
->filename
= argv
[i
];
4012 if (user_specs_tail
)
4013 user_specs_tail
->next
= user
;
4015 user_specs_head
= user
;
4016 user_specs_tail
= user
;
4018 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4020 struct user_specs
*user
= XNEW (struct user_specs
);
4021 if (strlen (argv
[i
]) == 7)
4022 fatal_error ("argument to %<-specs=%> is missing");
4024 user
->next
= (struct user_specs
*) 0;
4025 user
->filename
= argv
[i
] + 7;
4026 if (user_specs_tail
)
4027 user_specs_tail
->next
= user
;
4029 user_specs_head
= user
;
4030 user_specs_tail
= user
;
4032 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4034 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4035 target_system_root_changed
= 1;
4037 else if (strcmp (argv
[i
], "-time") == 0)
4039 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4041 if (report_times_to_file
)
4042 fclose (report_times_to_file
);
4043 report_times_to_file
= fopen (argv
[i
] + sizeof ("-time=") - 1, "a");
4045 else if (strcmp (argv
[i
], "-pipe") == 0)
4047 /* -pipe has to go into the switches array as well as
4052 else if (strcmp (argv
[i
], "-wrapper") == 0)
4055 fatal_error ("argument to %<-wrapper%> is missing");
4057 wrapper_string
= argv
[i
];
4059 else if (strcmp (argv
[i
], "-###") == 0)
4061 /* This is similar to -v except that there is no execution
4062 of the commands and the echoed arguments are quoted. It
4063 is intended for use in shell scripts to capture the
4064 driver-generated command line. */
4065 verbose_only_flag
++;
4068 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4077 if (p
[1] == 0 && i
+ 1 == argc
)
4078 fatal_error ("argument to %<-B%> is missing");
4080 value
= argv
[i
+ 1];
4084 len
= strlen (value
);
4086 /* Catch the case where the user has forgotten to append a
4087 directory separator to the path. Note, they may be using
4088 -B to add an executable name prefix, eg "i386-elf-", in
4089 order to distinguish between multiple installations of
4090 GCC in the same directory. Hence we must check to see
4091 if appending a directory separator actually makes a
4092 valid directory name. */
4093 if (! IS_DIR_SEPARATOR (value
[len
- 1])
4094 && is_directory (value
, false))
4096 char *tmp
= XNEWVEC (char, len
+ 2);
4097 strcpy (tmp
, value
);
4098 tmp
[len
] = DIR_SEPARATOR
;
4103 add_prefix (&exec_prefixes
, value
, NULL
,
4104 PREFIX_PRIORITY_B_OPT
, 0, 0);
4105 add_prefix (&startfile_prefixes
, value
, NULL
,
4106 PREFIX_PRIORITY_B_OPT
, 0, 0);
4107 add_prefix (&include_prefixes
, value
, NULL
,
4108 PREFIX_PRIORITY_B_OPT
, 0, 0);
4112 case 'v': /* Print our subcommands and print versions. */
4113 /* If they do anything other than exactly `-v', don't set
4114 verbose_flag; rather, continue on to give the error. */
4121 if (p
[1] == 0 && i
+ 1 == argc
)
4122 fatal_error ("argument to %<-x%> is missing");
4124 spec_lang
= argv
[++i
];
4127 if (! strcmp (spec_lang
, "none"))
4128 /* Suppress the warning if -xnone comes after the last input
4129 file, because alternate command interfaces like g++ might
4130 find it useful to place -xnone after each input file. */
4133 last_language_n_infiles
= n_infiles
;
4145 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4150 /* Forward scan, just in case -S, -E or -c is specified
4157 if (argv
[j
][0] == '-')
4159 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
4165 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
4166 j
+= skip
- (argv
[j
][2] != 0);
4167 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
4174 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4176 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
4179 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
4183 /* Save the output name in case -save-temps=obj was used. */
4184 if ((p
[1] == 0) && argv
[i
+ 1])
4185 save_temps_prefix
= xstrdup(argv
[i
+ 1]);
4187 save_temps_prefix
= xstrdup(argv
[i
] + 1);
4194 switches
[n_switches
].part1
= p
;
4195 /* Deal with option arguments in separate argv elements. */
4196 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4197 || WORD_SWITCH_TAKES_ARG (p
))
4200 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4204 /* Count only the option arguments in separate
4206 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4208 if (i
+ n_args
>= argc
)
4209 fatal_error ("argument to %<-%s%> is missing", p
);
4210 switches
[n_switches
].args
4211 = XNEWVEC (const char *, n_args
+ 1);
4213 switches
[n_switches
].args
[j
++] = argv
[++i
];
4214 /* Null-terminate the vector. */
4215 switches
[n_switches
].args
[j
] = 0;
4217 else if (strchr (switches_need_spaces
, c
))
4219 /* On some systems, ld cannot handle some options without
4220 a space. So split the option from its argument. */
4221 char *part1
= XNEWVEC (char, 2);
4225 switches
[n_switches
].part1
= part1
;
4226 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4227 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4228 switches
[n_switches
].args
[1] = 0;
4231 switches
[n_switches
].args
= 0;
4233 switches
[n_switches
].live_cond
= 0;
4234 switches
[n_switches
].validated
= 0;
4235 switches
[n_switches
].ordering
= 0;
4236 /* These are always valid, since gcc.c itself understands the
4237 first four, gfortranspec.c understands -static-libgfortran
4238 and g++spec.c understands -static-libstdc++ */
4239 if (!strcmp (p
, "save-temps")
4240 || !strcmp (p
, "static-libgcc")
4241 || !strcmp (p
, "shared-libgcc")
4242 || !strcmp (p
, "pipe")
4243 || !strcmp (p
, "static-libgfortran")
4244 || !strcmp (p
, "static-libstdc++"))
4245 switches
[n_switches
].validated
= 1;
4248 char ch
= switches
[n_switches
].part1
[0];
4250 switches
[n_switches
].validated
= 1;
4257 const char *p
= strrchr (argv
[i
], '@');
4261 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4262 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4264 /* For LTO static archive support we handle input file
4265 specifications that are composed of a filename and
4266 an offset like FNAME@OFFSET. */
4269 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4270 && strlen (p
) == (unsigned int)consumed
)
4272 fname
= (char *)xmalloc (p
- argv
[i
] + 1);
4273 memcpy (fname
, argv
[i
], p
- argv
[i
]);
4274 fname
[p
- argv
[i
]] = '\0';
4275 /* Only accept non-stdin and existing FNAME parts, otherwise
4276 try with the full name. */
4277 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4280 fname
= xstrdup (argv
[i
]);
4284 fname
= xstrdup (argv
[i
]);
4286 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4287 perror_with_name (fname
);
4289 add_infile (argv
[i
], spec_lang
);
4295 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4296 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4297 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4299 save_temps_length
= strlen (save_temps_prefix
);
4300 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4303 save_temps_length
-= strlen (temp
);
4304 save_temps_prefix
[save_temps_length
] = '\0';
4308 else if (save_temps_prefix
!= NULL
)
4310 free (save_temps_prefix
);
4311 save_temps_prefix
= NULL
;
4314 if (save_temps_flag
&& use_pipes
)
4316 /* -save-temps overrides -pipe, so that temp files are produced */
4317 if (save_temps_flag
)
4318 warning (0, "-pipe ignored because -save-temps specified");
4324 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4326 if (gcd
&& gcd
[0] == '-')
4329 compare_debug_opt
= gcd
;
4331 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4334 compare_debug_opt
= "-gtoggle";
4337 else if (compare_debug
< 0)
4340 gcc_assert (!compare_debug_opt
);
4343 /* Set up the search paths. We add directories that we expect to
4344 contain GNU Toolchain components before directories specified by
4345 the machine description so that we will find GNU components (like
4346 the GNU assembler) before those of the host system. */
4348 /* If we don't know where the toolchain has been installed, use the
4349 configured-in locations. */
4350 if (!gcc_exec_prefix
)
4353 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4354 PREFIX_PRIORITY_LAST
, 1, 0);
4355 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4356 PREFIX_PRIORITY_LAST
, 2, 0);
4357 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4358 PREFIX_PRIORITY_LAST
, 2, 0);
4360 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4361 PREFIX_PRIORITY_LAST
, 1, 0);
4364 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4365 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4366 dir_separator_str
, NULL
);
4368 /* Look for tools relative to the location from which the driver is
4369 running, or, if that is not available, the configured prefix. */
4371 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4372 spec_machine
, dir_separator_str
,
4373 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4375 add_prefix (&exec_prefixes
,
4376 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4377 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4378 add_prefix (&startfile_prefixes
,
4379 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4380 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4382 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4383 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4384 then consider it to relocate with the rest of the GCC installation
4385 if GCC_EXEC_PREFIX is set.
4386 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4387 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4389 char *tmp_prefix
= get_relative_prefix (argv
[0],
4390 standard_bindir_prefix
,
4391 target_system_root
);
4392 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4394 target_system_root
= tmp_prefix
;
4395 target_system_root_changed
= 1;
4400 /* More prefixes are enabled in main, after we read the specs file
4401 and determine whether this is cross-compilation or not. */
4403 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4404 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4406 if (compare_debug
== 2 || compare_debug
== 3)
4409 switches
[n_switches
].part1
= concat ("fcompare-debug=",
4412 switches
[n_switches
].args
= 0;
4413 switches
[n_switches
].live_cond
= 0;
4414 switches
[n_switches
].validated
= 0;
4415 switches
[n_switches
].ordering
= 0;
4420 /* Ensure we only invoke each subprocess once. */
4421 if (print_subprocess_help
|| print_help_list
|| print_version
)
4425 /* Create a dummy input file, so that we can pass
4426 the help option on to the various sub-processes. */
4427 add_infile ("help-dummy", "c");
4431 switches
[n_switches
].part1
= 0;
4433 infiles
[n_infiles
].name
= 0;
4436 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4437 and place that in the environment. */
4440 set_collect_gcc_options (void)
4445 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4447 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4448 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4451 for (i
= 0; (int) i
< n_switches
; i
++)
4453 const char *const *args
;
4456 obstack_grow (&collect_obstack
, " ", 1);
4460 /* Ignore elided switches. */
4461 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4464 obstack_grow (&collect_obstack
, "'-", 2);
4465 q
= switches
[i
].part1
;
4466 while ((p
= strchr (q
, '\'')))
4468 obstack_grow (&collect_obstack
, q
, p
- q
);
4469 obstack_grow (&collect_obstack
, "'\\''", 4);
4472 obstack_grow (&collect_obstack
, q
, strlen (q
));
4473 obstack_grow (&collect_obstack
, "'", 1);
4475 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4477 obstack_grow (&collect_obstack
, " '", 2);
4479 while ((p
= strchr (q
, '\'')))
4481 obstack_grow (&collect_obstack
, q
, p
- q
);
4482 obstack_grow (&collect_obstack
, "'\\''", 4);
4485 obstack_grow (&collect_obstack
, q
, strlen (q
));
4486 obstack_grow (&collect_obstack
, "'", 1);
4489 obstack_grow (&collect_obstack
, "\0", 1);
4490 xputenv (XOBFINISH (&collect_obstack
, char *));
4493 /* Process a spec string, accumulating and running commands. */
4495 /* These variables describe the input file name.
4496 input_file_number is the index on outfiles of this file,
4497 so that the output file name can be stored for later use by %o.
4498 input_basename is the start of the part of the input file
4499 sans all directory names, and basename_length is the number
4500 of characters starting there excluding the suffix .c or whatever. */
4502 static const char *gcc_input_filename
;
4503 static int input_file_number
;
4504 size_t input_filename_length
;
4505 static int basename_length
;
4506 static int suffixed_basename_length
;
4507 static const char *input_basename
;
4508 static const char *input_suffix
;
4509 #ifndef HOST_LACKS_INODE_NUMBERS
4510 static struct stat input_stat
;
4512 static int input_stat_set
;
4514 /* The compiler used to process the current input file. */
4515 static struct compiler
*input_file_compiler
;
4517 /* These are variables used within do_spec and do_spec_1. */
4519 /* Nonzero if an arg has been started and not yet terminated
4520 (with space, tab or newline). */
4521 static int arg_going
;
4523 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4524 is a temporary file name. */
4525 static int delete_this_arg
;
4527 /* Nonzero means %w has been seen; the next arg to be terminated
4528 is the output file name of this compilation. */
4529 static int this_is_output_file
;
4531 /* Nonzero means %s has been seen; the next arg to be terminated
4532 is the name of a library file and we should try the standard
4533 search dirs for it. */
4534 static int this_is_library_file
;
4536 /* Nonzero means %T has been seen; the next arg to be terminated
4537 is the name of a linker script and we should try all of the
4538 standard search dirs for it. If it is found insert a --script
4539 command line switch and then substitute the full path in place,
4540 otherwise generate an error message. */
4541 static int this_is_linker_script
;
4543 /* Nonzero means that the input of this command is coming from a pipe. */
4544 static int input_from_pipe
;
4546 /* Nonnull means substitute this for any suffix when outputting a switches
4548 static const char *suffix_subst
;
4550 /* If there is an argument being accumulated, terminate it and store it. */
4553 end_going_arg (void)
4559 obstack_1grow (&obstack
, 0);
4560 string
= XOBFINISH (&obstack
, const char *);
4561 if (this_is_library_file
)
4562 string
= find_file (string
);
4563 if (this_is_linker_script
)
4565 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4567 if (full_script_path
== NULL
)
4569 error ("unable to locate default linker script %qs in the library search paths", string
);
4570 /* Script was not found on search path. */
4573 store_arg ("--script", false, false);
4574 string
= full_script_path
;
4576 store_arg (string
, delete_this_arg
, this_is_output_file
);
4577 if (this_is_output_file
)
4578 outfiles
[input_file_number
] = string
;
4584 /* Parse the WRAPPER string which is a comma separated list of the command line
4585 and insert them into the beginning of argbuf. */
4588 insert_wrapper (const char *wrapper
)
4592 char *buf
= xstrdup (wrapper
);
4601 while ((p
= strchr (p
, ',')) != NULL
);
4603 if (argbuf_index
+ n
>= argbuf_length
)
4605 argbuf_length
= argbuf_length
* 2;
4606 while (argbuf_length
< argbuf_index
+ n
)
4608 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4610 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4611 argbuf
[i
+ n
] = argbuf
[i
];
4624 while ((p
= strchr (p
, ',')) != NULL
);
4625 gcc_assert (i
== n
);
4629 /* Process the spec SPEC and run the commands specified therein.
4630 Returns 0 if the spec is successfully processed; -1 if failed. */
4633 do_spec (const char *spec
)
4637 value
= do_spec_2 (spec
);
4639 /* Force out any unfinished command.
4640 If -pipe, this forces out the last command if it ended in `|'. */
4643 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4646 set_collect_gcc_options ();
4648 if (argbuf_index
> 0)
4656 do_spec_2 (const char *spec
)
4662 delete_this_arg
= 0;
4663 this_is_output_file
= 0;
4664 this_is_library_file
= 0;
4665 this_is_linker_script
= 0;
4666 input_from_pipe
= 0;
4667 suffix_subst
= NULL
;
4669 result
= do_spec_1 (spec
, 0, NULL
);
4677 /* Process the given spec string and add any new options to the end
4678 of the switches/n_switches array. */
4681 do_option_spec (const char *name
, const char *spec
)
4683 unsigned int i
, value_count
, value_len
;
4684 const char *p
, *q
, *value
;
4685 char *tmp_spec
, *tmp_spec_p
;
4687 if (configure_default_options
[0].name
== NULL
)
4690 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4691 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4693 if (i
== ARRAY_SIZE (configure_default_options
))
4696 value
= configure_default_options
[i
].value
;
4697 value_len
= strlen (value
);
4699 /* Compute the size of the final spec. */
4702 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4708 /* Replace each %(VALUE) by the specified value. */
4709 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4710 + value_count
* (value_len
- strlen ("%(VALUE)")));
4711 tmp_spec_p
= tmp_spec
;
4713 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4715 memcpy (tmp_spec_p
, q
, p
- q
);
4716 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4717 memcpy (tmp_spec_p
, value
, value_len
);
4718 tmp_spec_p
+= value_len
;
4719 q
= p
+ strlen ("%(VALUE)");
4721 strcpy (tmp_spec_p
, q
);
4723 do_self_spec (tmp_spec
);
4726 /* Process the given spec string and add any new options to the end
4727 of the switches/n_switches array. */
4730 do_self_spec (const char *spec
)
4735 do_spec_1 (" ", 0, NULL
);
4737 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4738 do_self_specs adds the replacements to switches array, so it shouldn't
4739 be processed afterwards. */
4740 for (i
= 0; i
< n_switches
; i
++)
4741 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4742 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4744 if (argbuf_index
> 0)
4746 switches
= XRESIZEVEC (struct switchstr
, switches
,
4747 n_switches
+ argbuf_index
+ 1);
4749 for (i
= 0; i
< argbuf_index
; i
++)
4751 struct switchstr
*sw
;
4752 const char *p
= argbuf
[i
];
4755 /* Each switch should start with '-'. */
4757 fatal_error ("switch %qs does not start with %<-%>", argbuf
[i
]);
4762 sw
= &switches
[n_switches
++];
4768 /* Deal with option arguments in separate argv elements. */
4769 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4770 || WORD_SWITCH_TAKES_ARG (p
))
4773 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4777 /* Count only the option arguments in separate argv elements. */
4778 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4780 if (i
+ n_args
>= argbuf_index
)
4781 fatal_error ("argument to %<-%s%> is missing", p
);
4783 = XNEWVEC (const char *, n_args
+ 1);
4785 sw
->args
[j
++] = argbuf
[++i
];
4786 /* Null-terminate the vector. */
4789 else if (strchr (switches_need_spaces
, c
))
4791 /* On some systems, ld cannot handle some options without
4792 a space. So split the option from its argument. */
4793 char *part1
= XNEWVEC (char, 2);
4798 sw
->args
= XNEWVEC (const char *, 2);
4799 sw
->args
[0] = xstrdup (p
+1);
4806 switches
[n_switches
].part1
= 0;
4810 /* Callback for processing %D and %I specs. */
4812 struct spec_path_info
{
4817 bool separate_options
;
4821 spec_path (char *path
, void *data
)
4823 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4827 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4830 if (info
->append_len
!= 0)
4832 len
= strlen (path
);
4833 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4836 if (!is_directory (path
, true))
4839 do_spec_1 (info
->option
, 1, NULL
);
4840 if (info
->separate_options
)
4841 do_spec_1 (" ", 0, NULL
);
4843 if (info
->append_len
== 0)
4845 len
= strlen (path
);
4846 save
= path
[len
- 1];
4847 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4848 path
[len
- 1] = '\0';
4851 do_spec_1 (path
, 1, NULL
);
4852 do_spec_1 (" ", 0, NULL
);
4854 /* Must not damage the original path. */
4855 if (info
->append_len
== 0)
4856 path
[len
- 1] = save
;
4861 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4865 create_at_file (char **argv
)
4867 char *temp_file
= make_temp_file ("");
4868 char *at_argument
= concat ("@", temp_file
, NULL
);
4869 FILE *f
= fopen (temp_file
, "w");
4873 fatal_error ("could not open temporary response file %s",
4876 status
= writeargv (argv
, f
);
4879 fatal_error ("could not write to temporary response file %s",
4882 status
= fclose (f
);
4885 fatal_error ("could not close temporary response file %s",
4888 store_arg (at_argument
, 0, 0);
4890 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4893 /* True if we should compile INFILE. */
4896 compile_input_file_p (struct infile
*infile
)
4898 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4899 if (infile
->incompiler
== input_file_compiler
)
4904 /* Process the sub-spec SPEC as a portion of a larger spec.
4905 This is like processing a whole spec except that we do
4906 not initialize at the beginning and we do not supply a
4907 newline by default at the end.
4908 INSWITCH nonzero means don't process %-sequences in SPEC;
4909 in this case, % is treated as an ordinary character.
4910 This is used while substituting switches.
4911 INSWITCH nonzero also causes SPC not to terminate an argument.
4913 Value is zero unless a line was finished
4914 and the command on that line reported an error. */
4917 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4919 const char *p
= spec
;
4925 /* If substituting a switch, treat all chars like letters.
4926 Otherwise, NL, SPC, TAB and % are special. */
4927 switch (inswitch
? 'a' : c
)
4932 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4934 /* A `|' before the newline means use a pipe here,
4935 but only if -pipe was specified.
4936 Otherwise, execute now and don't pass the `|' as an arg. */
4939 input_from_pipe
= 1;
4946 set_collect_gcc_options ();
4948 if (argbuf_index
> 0)
4954 /* Reinitialize for a new command, and for a new argument. */
4957 delete_this_arg
= 0;
4958 this_is_output_file
= 0;
4959 this_is_library_file
= 0;
4960 this_is_linker_script
= 0;
4961 input_from_pipe
= 0;
4968 obstack_1grow (&obstack
, c
);
4976 /* Reinitialize for a new argument. */
4977 delete_this_arg
= 0;
4978 this_is_output_file
= 0;
4979 this_is_library_file
= 0;
4980 this_is_linker_script
= 0;
4987 fatal_error ("spec %qs invalid", spec
);
4990 if (save_temps_length
)
4991 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4993 obstack_grow (&obstack
, input_basename
, basename_length
);
4994 if (compare_debug
< 0)
4995 obstack_grow (&obstack
, ".gk", 3);
5000 if (save_temps_length
)
5001 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5003 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5004 if (compare_debug
< 0)
5005 obstack_grow (&obstack
, ".gk", 3);
5010 delete_this_arg
= 2;
5013 /* Dump out the directories specified with LIBRARY_PATH,
5014 followed by the absolute directories
5015 that we search for startfiles. */
5018 struct spec_path_info info
;
5021 info
.append_len
= 0;
5022 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5023 /* Used on systems which record the specified -L dirs
5024 and use them to search for dynamic linking.
5025 Relative directories always come from -B,
5026 and it is better not to use them for searching
5027 at run time. In particular, stage1 loses. */
5028 info
.omit_relative
= true;
5030 info
.omit_relative
= false;
5032 info
.separate_options
= false;
5034 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5039 /* %efoo means report an error with `foo' as error message
5040 and don't execute any more commands for this file. */
5044 while (*p
!= 0 && *p
!= '\n')
5046 buf
= (char *) alloca (p
- q
+ 1);
5047 strncpy (buf
, q
, p
- q
);
5049 error ("%s", _(buf
));
5054 /* %nfoo means report a notice with `foo' on stderr. */
5058 while (*p
!= 0 && *p
!= '\n')
5060 buf
= (char *) alloca (p
- q
+ 1);
5061 strncpy (buf
, q
, p
- q
);
5063 inform (0, "%s", _(buf
));
5073 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5074 defined, and it is not a directory, and it is
5075 writable, use it. Otherwise, treat this like any
5076 other temporary file. */
5078 if ((!save_temps_flag
)
5079 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5080 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5082 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5083 strlen (HOST_BIT_BUCKET
));
5084 delete_this_arg
= 0;
5089 goto create_temp_file
;
5093 obstack_1grow (&obstack
, '-');
5094 delete_this_arg
= 0;
5097 /* consume suffix */
5098 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5100 if (p
[0] == '%' && p
[1] == 'O')
5105 goto create_temp_file
;
5109 /* consume suffix */
5110 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5112 if (p
[0] == '%' && p
[1] == 'O')
5117 goto create_temp_file
;
5123 struct temp_name
*t
;
5125 const char *suffix
= p
;
5126 char *saved_suffix
= NULL
;
5128 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5130 suffix_length
= p
- suffix
;
5131 if (p
[0] == '%' && p
[1] == 'O')
5134 /* We don't support extra suffix characters after %O. */
5135 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5136 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
5137 if (suffix_length
== 0)
5138 suffix
= TARGET_OBJECT_SUFFIX
;
5142 = XNEWVEC (char, suffix_length
5143 + strlen (TARGET_OBJECT_SUFFIX
));
5144 strncpy (saved_suffix
, suffix
, suffix_length
);
5145 strcpy (saved_suffix
+ suffix_length
,
5146 TARGET_OBJECT_SUFFIX
);
5148 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5151 if (compare_debug
< 0)
5153 suffix
= concat (".gk", suffix
, NULL
);
5157 /* If -save-temps=obj and -o were specified, use that for the
5159 if (save_temps_length
)
5162 temp_filename_length
5163 = save_temps_length
+ suffix_length
+ 1;
5164 tmp
= (char *) alloca (temp_filename_length
);
5165 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5166 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5167 tmp
[save_temps_length
+ suffix_length
] = '\0';
5168 temp_filename
= save_string (tmp
,
5169 temp_filename_length
+ 1);
5170 obstack_grow (&obstack
, temp_filename
,
5171 temp_filename_length
);
5173 delete_this_arg
= 0;
5177 /* If the gcc_input_filename has the same suffix specified
5178 for the %g, %u, or %U, and -save-temps is specified,
5179 we could end up using that file as an intermediate
5180 thus clobbering the user's source file (.e.g.,
5181 gcc -save-temps foo.s would clobber foo.s with the
5182 output of cpp0). So check for this condition and
5183 generate a temp file as the intermediate. */
5185 if (save_temps_flag
)
5188 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5189 tmp
= (char *) alloca (temp_filename_length
);
5190 memcpy (tmp
, input_basename
, basename_length
);
5191 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5192 tmp
[basename_length
+ suffix_length
] = '\0';
5193 temp_filename
= tmp
;
5195 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
5197 #ifndef HOST_LACKS_INODE_NUMBERS
5198 struct stat st_temp
;
5200 /* Note, set_input() resets input_stat_set to 0. */
5201 if (input_stat_set
== 0)
5203 input_stat_set
= stat (gcc_input_filename
,
5205 if (input_stat_set
>= 0)
5209 /* If we have the stat for the gcc_input_filename
5210 and we can do the stat for the temp_filename
5211 then the they could still refer to the same
5212 file if st_dev/st_ino's are the same. */
5213 if (input_stat_set
!= 1
5214 || stat (temp_filename
, &st_temp
) < 0
5215 || input_stat
.st_dev
!= st_temp
.st_dev
5216 || input_stat
.st_ino
!= st_temp
.st_ino
)
5218 /* Just compare canonical pathnames. */
5219 char* input_realname
= lrealpath (gcc_input_filename
);
5220 char* temp_realname
= lrealpath (temp_filename
);
5221 bool files_differ
= strcmp (input_realname
, temp_realname
);
5222 free (input_realname
);
5223 free (temp_realname
);
5227 temp_filename
= save_string (temp_filename
,
5228 temp_filename_length
+ 1);
5229 obstack_grow (&obstack
, temp_filename
,
5230 temp_filename_length
);
5232 delete_this_arg
= 0;
5238 /* See if we already have an association of %g/%u/%U and
5240 for (t
= temp_names
; t
; t
= t
->next
)
5241 if (t
->length
== suffix_length
5242 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5243 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5246 /* Make a new association if needed. %u and %j
5248 if (t
== 0 || c
== 'u' || c
== 'j')
5252 t
= XNEW (struct temp_name
);
5253 t
->next
= temp_names
;
5256 t
->length
= suffix_length
;
5259 t
->suffix
= saved_suffix
;
5260 saved_suffix
= NULL
;
5263 t
->suffix
= save_string (suffix
, suffix_length
);
5264 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5265 temp_filename
= make_temp_file (t
->suffix
);
5266 temp_filename_length
= strlen (temp_filename
);
5267 t
->filename
= temp_filename
;
5268 t
->filename_length
= temp_filename_length
;
5272 free (saved_suffix
);
5274 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5275 delete_this_arg
= 1;
5283 if (at_file_supplied
)
5285 /* We are going to expand `%i' to `@FILE', where FILE
5286 is a newly-created temporary filename. The filenames
5287 that would usually be expanded in place of %o will be
5288 written to the temporary file. */
5293 for (i
= 0; i
< n_infiles
; i
++)
5294 if (compile_input_file_p (&infiles
[i
]))
5297 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5299 /* Copy the strings over. */
5300 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5301 if (compile_input_file_p (&infiles
[i
]))
5303 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5304 infiles
[i
].compiled
= true;
5309 create_at_file (argv
);
5312 for (i
= 0; (int) i
< n_infiles
; i
++)
5313 if (compile_input_file_p (&infiles
[i
]))
5315 store_arg (infiles
[i
].name
, 0, 0);
5316 infiles
[i
].compiled
= true;
5321 obstack_grow (&obstack
, gcc_input_filename
,
5322 input_filename_length
);
5329 struct spec_path_info info
;
5333 do_spec_1 ("-imultilib", 1, NULL
);
5334 /* Make this a separate argument. */
5335 do_spec_1 (" ", 0, NULL
);
5336 do_spec_1 (multilib_dir
, 1, NULL
);
5337 do_spec_1 (" ", 0, NULL
);
5340 if (gcc_exec_prefix
)
5342 do_spec_1 ("-iprefix", 1, NULL
);
5343 /* Make this a separate argument. */
5344 do_spec_1 (" ", 0, NULL
);
5345 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5346 do_spec_1 (" ", 0, NULL
);
5349 if (target_system_root_changed
||
5350 (target_system_root
&& target_sysroot_hdrs_suffix
))
5352 do_spec_1 ("-isysroot", 1, NULL
);
5353 /* Make this a separate argument. */
5354 do_spec_1 (" ", 0, NULL
);
5355 do_spec_1 (target_system_root
, 1, NULL
);
5356 if (target_sysroot_hdrs_suffix
)
5357 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5358 do_spec_1 (" ", 0, NULL
);
5361 info
.option
= "-isystem";
5362 info
.append
= "include";
5363 info
.append_len
= strlen (info
.append
);
5364 info
.omit_relative
= false;
5365 info
.separate_options
= true;
5367 for_each_path (&include_prefixes
, false, info
.append_len
,
5370 info
.append
= "include-fixed";
5371 if (*sysroot_hdrs_suffix_spec
)
5372 info
.append
= concat (info
.append
, dir_separator_str
,
5373 multilib_dir
, NULL
);
5374 info
.append_len
= strlen (info
.append
);
5375 for_each_path (&include_prefixes
, false, info
.append_len
,
5382 int max
= n_infiles
;
5383 max
+= lang_specific_extra_outfiles
;
5385 if (HAVE_GNU_LD
&& at_file_supplied
)
5387 /* We are going to expand `%o' to `@FILE', where FILE
5388 is a newly-created temporary filename. The filenames
5389 that would usually be expanded in place of %o will be
5390 written to the temporary file. */
5395 /* Convert OUTFILES into a form suitable for writeargv. */
5397 /* Determine how many are non-NULL. */
5398 for (n_files
= 0, i
= 0; i
< max
; i
++)
5399 n_files
+= outfiles
[i
] != NULL
;
5401 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5403 /* Copy the strings over. */
5404 for (i
= 0, j
= 0; i
< max
; i
++)
5407 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5412 create_at_file (argv
);
5415 for (i
= 0; i
< max
; i
++)
5417 store_arg (outfiles
[i
], 0, 0);
5422 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5427 this_is_library_file
= 1;
5431 this_is_linker_script
= 1;
5435 outfiles
[input_file_number
] = NULL
;
5439 this_is_output_file
= 1;
5444 int cur_index
= argbuf_index
;
5445 /* Handle the {...} following the %W. */
5447 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
5448 p
= handle_braces (p
+ 1);
5452 /* If any args were output, mark the last one for deletion
5454 if (argbuf_index
!= cur_index
)
5455 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5459 /* %x{OPTION} records OPTION for %X to output. */
5465 /* Skip past the option value and make a copy. */
5467 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
5470 string
= save_string (p1
+ 1, p
- p1
- 2);
5472 /* See if we already recorded this option. */
5473 for (i
= 0; i
< n_linker_options
; i
++)
5474 if (! strcmp (string
, linker_options
[i
]))
5480 /* This option is new; add it. */
5481 add_linker_option (string
, strlen (string
));
5485 /* Dump out the options accumulated previously using %x. */
5487 for (i
= 0; i
< n_linker_options
; i
++)
5489 do_spec_1 (linker_options
[i
], 1, NULL
);
5490 /* Make each accumulated option a separate argument. */
5491 do_spec_1 (" ", 0, NULL
);
5495 /* Dump out the options accumulated previously using -Wa,. */
5497 for (i
= 0; i
< n_assembler_options
; i
++)
5499 do_spec_1 (assembler_options
[i
], 1, NULL
);
5500 /* Make each accumulated option a separate argument. */
5501 do_spec_1 (" ", 0, NULL
);
5505 /* Dump out the options accumulated previously using -Wp,. */
5507 for (i
= 0; i
< n_preprocessor_options
; i
++)
5509 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5510 /* Make each accumulated option a separate argument. */
5511 do_spec_1 (" ", 0, NULL
);
5515 /* Here are digits and numbers that just process
5516 a certain constant string as a spec. */
5519 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5525 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5531 value
= do_spec_1 (asm_spec
, 0, NULL
);
5537 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5544 const char *const spec
5545 = (input_file_compiler
->cpp_spec
5546 ? input_file_compiler
->cpp_spec
5548 value
= do_spec_1 (spec
, 0, NULL
);
5555 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5561 value
= do_spec_1 (link_spec
, 0, NULL
);
5567 value
= do_spec_1 (lib_spec
, 0, NULL
);
5573 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5579 /* We assume there is a directory
5580 separator at the end of this string. */
5581 if (target_system_root
)
5583 obstack_grow (&obstack
, target_system_root
,
5584 strlen (target_system_root
));
5585 if (target_sysroot_suffix
)
5586 obstack_grow (&obstack
, target_sysroot_suffix
,
5587 strlen (target_sysroot_suffix
));
5592 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5597 /* Here we define characters other than letters and digits. */
5600 p
= handle_braces (p
);
5606 p
= handle_spec_function (p
);
5612 obstack_1grow (&obstack
, '%');
5619 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5621 suffix_subst
= save_string (p
- 1, len
+ 1);
5626 /* Henceforth ignore the option(s) matching the pattern
5631 int have_wildcard
= 0;
5634 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5637 if (p
[len
-1] == '*')
5640 for (i
= 0; i
< n_switches
; i
++)
5641 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5642 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5644 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5645 switches
[i
].validated
= 1;
5653 if (soft_matched_part
)
5655 do_spec_1 (soft_matched_part
, 1, NULL
);
5656 do_spec_1 (" ", 0, NULL
);
5659 /* Catch the case where a spec string contains something like
5660 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5661 hand side of the :. */
5662 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5665 /* Process a string found as the value of a spec given by name.
5666 This feature allows individual machine descriptions
5667 to add and use their own specs.
5668 %[...] modifies -D options the way %P does;
5669 %(...) uses the spec unmodified. */
5671 warning (0, "use of obsolete %%[ operator in specs");
5674 const char *name
= p
;
5675 struct spec_list
*sl
;
5678 /* The string after the S/P is the name of a spec that is to be
5680 while (*p
&& *p
!= ')' && *p
!= ']')
5683 /* See if it's in the list. */
5684 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5685 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5687 name
= *(sl
->ptr_spec
);
5689 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5690 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5699 value
= do_spec_1 (name
, 0, NULL
);
5705 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5707 const char *y
= name
;
5710 /* Copy all of NAME into BUF, but put __ after
5711 every -D and at the end of each arg. */
5714 if (! strncmp (y
, "-D", 2))
5725 && (*y
== ' ' || *y
== '\t' || *y
== '='
5726 || *y
== '}' || *y
== 0))
5739 value
= do_spec_1 (buf
, 0, NULL
);
5745 /* Discard the closing paren or bracket. */
5752 error ("spec failure: unrecognized spec option %qc", c
);
5758 /* Backslash: treat next character as ordinary. */
5763 /* Ordinary character: put it into the current argument. */
5764 obstack_1grow (&obstack
, c
);
5768 /* End of string. If we are processing a spec function, we need to
5769 end any pending argument. */
5770 if (processing_spec_function
)
5776 /* Look up a spec function. */
5778 static const struct spec_function
*
5779 lookup_spec_function (const char *name
)
5781 const struct spec_function
*sf
;
5783 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5784 if (strcmp (sf
->name
, name
) == 0)
5790 /* Evaluate a spec function. */
5793 eval_spec_function (const char *func
, const char *args
)
5795 const struct spec_function
*sf
;
5796 const char *funcval
;
5798 /* Saved spec processing context. */
5799 int save_argbuf_index
;
5800 int save_argbuf_length
;
5801 const char **save_argbuf
;
5804 int save_delete_this_arg
;
5805 int save_this_is_output_file
;
5806 int save_this_is_library_file
;
5807 int save_input_from_pipe
;
5808 int save_this_is_linker_script
;
5809 const char *save_suffix_subst
;
5812 sf
= lookup_spec_function (func
);
5814 fatal_error ("unknown spec function %qs", func
);
5816 /* Push the spec processing context. */
5817 save_argbuf_index
= argbuf_index
;
5818 save_argbuf_length
= argbuf_length
;
5819 save_argbuf
= argbuf
;
5821 save_arg_going
= arg_going
;
5822 save_delete_this_arg
= delete_this_arg
;
5823 save_this_is_output_file
= this_is_output_file
;
5824 save_this_is_library_file
= this_is_library_file
;
5825 save_this_is_linker_script
= this_is_linker_script
;
5826 save_input_from_pipe
= input_from_pipe
;
5827 save_suffix_subst
= suffix_subst
;
5829 /* Create a new spec processing context, and build the function
5833 if (do_spec_2 (args
) < 0)
5834 fatal_error ("error in args to spec function %qs", func
);
5836 /* argbuf_index is an index for the next argument to be inserted, and
5837 so contains the count of the args already inserted. */
5839 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5841 /* Pop the spec processing context. */
5842 argbuf_index
= save_argbuf_index
;
5843 argbuf_length
= save_argbuf_length
;
5845 argbuf
= save_argbuf
;
5847 arg_going
= save_arg_going
;
5848 delete_this_arg
= save_delete_this_arg
;
5849 this_is_output_file
= save_this_is_output_file
;
5850 this_is_library_file
= save_this_is_library_file
;
5851 this_is_linker_script
= save_this_is_linker_script
;
5852 input_from_pipe
= save_input_from_pipe
;
5853 suffix_subst
= save_suffix_subst
;
5858 /* Handle a spec function call of the form:
5862 ARGS is processed as a spec in a separate context and split into an
5863 argument vector in the normal fashion. The function returns a string
5864 containing a spec which we then process in the caller's context, or
5865 NULL if no processing is required. */
5868 handle_spec_function (const char *p
)
5871 const char *endp
, *funcval
;
5874 processing_spec_function
++;
5876 /* Get the function name. */
5877 for (endp
= p
; *endp
!= '\0'; endp
++)
5879 if (*endp
== '(') /* ) */
5881 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5882 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5883 fatal_error ("malformed spec function name");
5885 if (*endp
!= '(') /* ) */
5886 fatal_error ("no arguments for spec function");
5887 func
= save_string (p
, endp
- p
);
5890 /* Get the arguments. */
5891 for (count
= 0; *endp
!= '\0'; endp
++)
5900 else if (*endp
== '(') /* ) */
5905 fatal_error ("malformed spec function arguments");
5906 args
= save_string (p
, endp
- p
);
5909 /* p now points to just past the end of the spec function expression. */
5911 funcval
= eval_spec_function (func
, args
);
5912 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5918 processing_spec_function
--;
5923 /* Inline subroutine of handle_braces. Returns true if the current
5924 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5926 input_suffix_matches (const char *atom
, const char *end_atom
)
5928 return (input_suffix
5929 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5930 && input_suffix
[end_atom
- atom
] == '\0');
5933 /* Subroutine of handle_braces. Returns true if the current
5934 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5936 input_spec_matches (const char *atom
, const char *end_atom
)
5938 return (input_file_compiler
5939 && input_file_compiler
->suffix
5940 && input_file_compiler
->suffix
[0] != '\0'
5941 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5943 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5946 /* Subroutine of handle_braces. Returns true if a switch
5947 matching the atom bracketed by ATOM and END_ATOM appeared on the
5950 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5953 int len
= end_atom
- atom
;
5954 int plen
= starred
? len
: -1;
5956 for (i
= 0; i
< n_switches
; i
++)
5957 if (!strncmp (switches
[i
].part1
, atom
, len
)
5958 && (starred
|| switches
[i
].part1
[len
] == '\0')
5959 && check_live_switch (i
, plen
))
5965 /* Inline subroutine of handle_braces. Mark all of the switches which
5966 match ATOM (extends to END_ATOM; STARRED indicates whether there
5967 was a star after the atom) for later processing. */
5969 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5972 int len
= end_atom
- atom
;
5973 int plen
= starred
? len
: -1;
5975 for (i
= 0; i
< n_switches
; i
++)
5976 if (!strncmp (switches
[i
].part1
, atom
, len
)
5977 && (starred
|| switches
[i
].part1
[len
] == '\0')
5978 && check_live_switch (i
, plen
))
5979 switches
[i
].ordering
= 1;
5982 /* Inline subroutine of handle_braces. Process all the currently
5983 marked switches through give_switch, and clear the marks. */
5985 process_marked_switches (void)
5989 for (i
= 0; i
< n_switches
; i
++)
5990 if (switches
[i
].ordering
== 1)
5992 switches
[i
].ordering
= 0;
5997 /* Handle a %{ ... } construct. P points just inside the leading {.
5998 Returns a pointer one past the end of the brace block, or 0
5999 if we call do_spec_1 and that returns -1. */
6002 handle_braces (const char *p
)
6004 const char *atom
, *end_atom
;
6005 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6006 const char *orig
= p
;
6014 bool a_must_be_last
= false;
6015 bool ordered_set
= false;
6016 bool disjunct_set
= false;
6017 bool disj_matched
= false;
6018 bool disj_starred
= true;
6019 bool n_way_choice
= false;
6020 bool n_way_matched
= false;
6022 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6029 /* Scan one "atom" (S in the description above of %{}, possibly
6030 with '!', '.', '@', ',', or '*' modifiers). */
6032 a_is_suffix
= false;
6033 a_is_starred
= false;
6034 a_is_negated
= false;
6035 a_is_spectype
= false;
6039 p
++, a_is_negated
= true;
6043 p
++, a_is_suffix
= true;
6045 p
++, a_is_spectype
= true;
6048 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
6049 || *p
== ',' || *p
== '.' || *p
== '@')
6054 p
++, a_is_starred
= 1;
6060 /* Substitute the switch(es) indicated by the current atom. */
6062 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6063 || a_is_spectype
|| atom
== end_atom
)
6066 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6069 process_marked_switches ();
6073 /* Substitute some text if the current atom appears as a switch
6075 disjunct_set
= true;
6079 if (atom
== end_atom
)
6081 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6082 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6086 /* An empty term may appear as the last choice of an
6087 N-way choice set; it means "otherwise". */
6088 a_must_be_last
= true;
6089 disj_matched
= !n_way_matched
;
6090 disj_starred
= false;
6094 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6098 disj_starred
= false;
6100 /* Don't bother testing this atom if we already have a
6102 if (!disj_matched
&& !n_way_matched
)
6105 a_matched
= input_suffix_matches (atom
, end_atom
);
6106 else if (a_is_spectype
)
6107 a_matched
= input_spec_matches (atom
, end_atom
);
6109 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6111 if (a_matched
!= a_is_negated
)
6113 disj_matched
= true;
6115 d_end_atom
= end_atom
;
6122 /* Found the body, that is, the text to substitute if the
6123 current disjunction matches. */
6124 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6125 disj_matched
&& !n_way_matched
);
6129 /* If we have an N-way choice, reset state for the next
6133 n_way_choice
= true;
6134 n_way_matched
|= disj_matched
;
6135 disj_matched
= false;
6136 disj_starred
= true;
6137 d_atom
= d_end_atom
= NULL
;
6146 while (*p
++ != '}');
6151 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
6156 /* Subroutine of handle_braces. Scan and process a brace substitution body
6157 (X in the description of %{} syntax). P points one past the colon;
6158 ATOM and END_ATOM bracket the first atom which was found to be true
6159 (present) in the current disjunction; STARRED indicates whether all
6160 the atoms in the current disjunction were starred (for syntax validation);
6161 MATCHED indicates whether the disjunction matched or not, and therefore
6162 whether or not the body is to be processed through do_spec_1 or just
6163 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6167 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6168 int starred
, int matched
)
6170 const char *body
, *end_body
;
6171 unsigned int nesting_level
;
6172 bool have_subst
= false;
6174 /* Locate the closing } or ;, honoring nested braces.
6175 Trim trailing whitespace. */
6184 if (!--nesting_level
)
6187 else if (*p
== ';' && nesting_level
== 1)
6189 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6191 else if (*p
== '\0')
6197 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6200 if (have_subst
&& !starred
)
6205 /* Copy the substitution body to permanent storage and execute it.
6206 If have_subst is false, this is a simple matter of running the
6207 body through do_spec_1... */
6208 char *string
= save_string (body
, end_body
- body
);
6211 if (do_spec_1 (string
, 0, NULL
) < 0)
6216 /* ... but if have_subst is true, we have to process the
6217 body once for each matching switch, with %* set to the
6218 variant part of the switch. */
6219 unsigned int hard_match_len
= end_atom
- atom
;
6222 for (i
= 0; i
< n_switches
; i
++)
6223 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6224 && check_live_switch (i
, hard_match_len
))
6226 if (do_spec_1 (string
, 0,
6227 &switches
[i
].part1
[hard_match_len
]) < 0)
6229 /* Pass any arguments this switch has. */
6231 suffix_subst
= NULL
;
6239 fatal_error ("braced spec body %qs is invalid", body
);
6242 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6243 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6244 spec, or -1 if either exact match or %* is used.
6246 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6247 whose value does not begin with "no-" is obsoleted by the same value
6248 with the "no-", similarly for a switch with the "no-" prefix. */
6251 check_live_switch (int switchnum
, int prefix_length
)
6253 const char *name
= switches
[switchnum
].part1
;
6256 /* If we already processed this switch and determined if it was
6257 live or not, return our past determination. */
6258 if (switches
[switchnum
].live_cond
!= 0)
6259 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6260 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6261 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6264 /* In the common case of {<at-most-one-letter>*}, a negating
6265 switch would always match, so ignore that case. We will just
6266 send the conflicting switches to the compiler phase. */
6267 if (prefix_length
>= 0 && prefix_length
<= 1)
6270 /* Now search for duplicate in a manner that depends on the name. */
6274 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6275 if (switches
[i
].part1
[0] == 'O')
6277 switches
[switchnum
].validated
= 1;
6278 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6283 case 'W': case 'f': case 'm':
6284 if (! strncmp (name
+ 1, "no-", 3))
6286 /* We have Xno-YYY, search for XYYY. */
6287 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6288 if (switches
[i
].part1
[0] == name
[0]
6289 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6291 switches
[switchnum
].validated
= 1;
6292 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6298 /* We have XYYY, search for Xno-YYY. */
6299 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6300 if (switches
[i
].part1
[0] == name
[0]
6301 && switches
[i
].part1
[1] == 'n'
6302 && switches
[i
].part1
[2] == 'o'
6303 && switches
[i
].part1
[3] == '-'
6304 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6306 switches
[switchnum
].validated
= 1;
6307 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6314 /* Otherwise the switch is live. */
6315 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6319 /* Pass a switch to the current accumulating command
6320 in the same form that we received it.
6321 SWITCHNUM identifies the switch; it is an index into
6322 the vector of switches gcc received, which is `switches'.
6323 This cannot fail since it never finishes a command line.
6325 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6328 give_switch (int switchnum
, int omit_first_word
)
6330 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6333 if (!omit_first_word
)
6335 do_spec_1 ("-", 0, NULL
);
6336 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6339 if (switches
[switchnum
].args
!= 0)
6342 for (p
= switches
[switchnum
].args
; *p
; p
++)
6344 const char *arg
= *p
;
6346 do_spec_1 (" ", 0, NULL
);
6349 unsigned length
= strlen (arg
);
6352 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6353 if (arg
[length
] == '.')
6355 (CONST_CAST(char *, arg
))[length
] = 0;
6359 do_spec_1 (arg
, 1, NULL
);
6361 (CONST_CAST(char *, arg
))[length
] = '.';
6362 do_spec_1 (suffix_subst
, 1, NULL
);
6365 do_spec_1 (arg
, 1, NULL
);
6369 do_spec_1 (" ", 0, NULL
);
6370 switches
[switchnum
].validated
= 1;
6373 /* Search for a file named NAME trying various prefixes including the
6374 user's -B prefix and some standard ones.
6375 Return the absolute file name found. If nothing is found, return NAME. */
6378 find_file (const char *name
)
6380 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6381 return newname
? newname
: name
;
6384 /* Determine whether a directory exists. If LINKER, return 0 for
6385 certain fixed names not needed by the linker. */
6388 is_directory (const char *path1
, bool linker
)
6395 /* Ensure the string ends with "/.". The resulting path will be a
6396 directory even if the given path is a symbolic link. */
6397 len1
= strlen (path1
);
6398 path
= (char *) alloca (3 + len1
);
6399 memcpy (path
, path1
, len1
);
6401 if (!IS_DIR_SEPARATOR (cp
[-1]))
6402 *cp
++ = DIR_SEPARATOR
;
6406 /* Exclude directories that the linker is known to search. */
6408 && IS_DIR_SEPARATOR (path
[0])
6410 && strncmp (path
+ 1, "lib", 3) == 0)
6412 && strncmp (path
+ 1, "usr", 3) == 0
6413 && IS_DIR_SEPARATOR (path
[4])
6414 && strncmp (path
+ 5, "lib", 3) == 0)))
6417 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6420 /* Set up the various global variables to indicate that we're processing
6421 the input file named FILENAME. */
6424 set_input (const char *filename
)
6428 gcc_input_filename
= filename
;
6429 input_filename_length
= strlen (gcc_input_filename
);
6430 input_basename
= lbasename (gcc_input_filename
);
6432 /* Find a suffix starting with the last period,
6433 and set basename_length to exclude that suffix. */
6434 basename_length
= strlen (input_basename
);
6435 suffixed_basename_length
= basename_length
;
6436 p
= input_basename
+ basename_length
;
6437 while (p
!= input_basename
&& *p
!= '.')
6439 if (*p
== '.' && p
!= input_basename
)
6441 basename_length
= p
- input_basename
;
6442 input_suffix
= p
+ 1;
6447 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6448 we will need to do a stat on the gcc_input_filename. The
6449 INPUT_STAT_SET signals that the stat is needed. */
6453 /* On fatal signals, delete all the temporary files. */
6456 fatal_signal (int signum
)
6458 signal (signum
, SIG_DFL
);
6459 delete_failure_queue ();
6460 delete_temp_files ();
6461 /* Get the same signal again, this time not handled,
6462 so its normal effect occurs. */
6463 kill (getpid (), signum
);
6466 /* Compare the contents of the two files named CMPFILE[0] and
6467 CMPFILE[1]. Return zero if they're identical, nonzero
6471 compare_files (char *cmpfile
[])
6474 FILE *temp
[2] = { NULL
, NULL
};
6480 void *map
[2] = { NULL
, NULL
};
6482 for (i
= 0; i
< 2; i
++)
6486 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6488 error ("%s: could not determine length of compare-debug file %s",
6489 gcc_input_filename
, cmpfile
[i
]);
6494 length
[i
] = st
.st_size
;
6497 if (!ret
&& length
[0] != length
[1])
6499 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6504 for (i
= 0; i
< 2; i
++)
6506 int fd
= open (cmpfile
[i
], O_RDONLY
);
6509 error ("%s: could not open compare-debug file %s",
6510 gcc_input_filename
, cmpfile
[i
]);
6515 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6518 if (map
[i
] == (void *) MAP_FAILED
)
6527 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6529 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6534 for (i
= 0; i
< 2; i
++)
6536 munmap ((caddr_t
) map
[i
], length
[i
]);
6545 for (i
= 0; i
< 2; i
++)
6547 temp
[i
] = fopen (cmpfile
[i
], "r");
6550 error ("%s: could not open compare-debug file %s",
6551 gcc_input_filename
, cmpfile
[i
]);
6557 if (!ret
&& temp
[0] && temp
[1])
6561 c0
= fgetc (temp
[0]);
6562 c1
= fgetc (temp
[1]);
6566 error ("%s: -fcompare-debug failure",
6567 gcc_input_filename
);
6576 for (i
= 1; i
>= 0; i
--)
6585 extern int main (int, char **);
6588 main (int argc
, char **argv
)
6592 int linker_was_run
= 0;
6593 int lang_n_infiles
= 0;
6594 int num_linker_inputs
= 0;
6595 char *explicit_link_files
;
6598 struct user_specs
*uptr
;
6599 char **old_argv
= argv
;
6601 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6602 on ?: in file-scope variable initializations. */
6603 asm_debug
= ASM_DEBUG_SPEC
;
6605 p
= argv
[0] + strlen (argv
[0]);
6606 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6610 xmalloc_set_program_name (progname
);
6612 expandargv (&argc
, &argv
);
6614 /* Determine if any expansions were made. */
6615 if (argv
!= old_argv
)
6616 at_file_supplied
= true;
6618 prune_options (&argc
, &argv
);
6620 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6621 /* Perform host dependent initialization when needed. */
6622 GCC_DRIVER_HOST_INITIALIZATION
;
6625 /* Unlock the stdio streams. */
6626 unlock_std_streams ();
6628 gcc_init_libintl ();
6630 diagnostic_initialize (global_dc
, 0);
6631 if (atexit (delete_temp_files
) != 0)
6632 fatal_error ("atexit failed");
6634 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6635 signal (SIGINT
, fatal_signal
);
6637 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6638 signal (SIGHUP
, fatal_signal
);
6640 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6641 signal (SIGTERM
, fatal_signal
);
6643 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6644 signal (SIGPIPE
, fatal_signal
);
6647 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6648 receive the signal. A different setting is inheritable */
6649 signal (SIGCHLD
, SIG_DFL
);
6652 /* Allocate the argument vector. */
6655 obstack_init (&obstack
);
6657 /* Build multilib_select, et. al from the separate lines that make up each
6658 multilib selection. */
6660 const char *const *q
= multilib_raw
;
6663 obstack_init (&multilib_obstack
);
6664 while ((p
= *q
++) != (char *) 0)
6665 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6667 obstack_1grow (&multilib_obstack
, 0);
6668 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6670 q
= multilib_matches_raw
;
6671 while ((p
= *q
++) != (char *) 0)
6672 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6674 obstack_1grow (&multilib_obstack
, 0);
6675 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6677 q
= multilib_exclusions_raw
;
6678 while ((p
= *q
++) != (char *) 0)
6679 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6681 obstack_1grow (&multilib_obstack
, 0);
6682 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6685 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6688 obstack_1grow (&multilib_obstack
, ' ');
6689 obstack_grow (&multilib_obstack
,
6690 multilib_defaults_raw
[i
],
6691 strlen (multilib_defaults_raw
[i
]));
6695 obstack_1grow (&multilib_obstack
, 0);
6696 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6699 #ifdef INIT_ENVIRONMENT
6700 /* Set up any other necessary machine specific environment variables. */
6701 xputenv (INIT_ENVIRONMENT
);
6704 /* Make a table of what switches there are (switches, n_switches).
6705 Make a table of specified input files (infiles, n_infiles).
6706 Decode switches that are handled locally. */
6708 process_command (argc
, CONST_CAST2 (const char **, char **, argv
));
6710 /* Initialize the vector of specs to just the default.
6711 This means one element containing 0s, as a terminator. */
6713 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6714 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6715 n_compilers
= n_default_compilers
;
6717 /* Read specs from a file if there is one. */
6719 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6720 spec_version
, dir_separator_str
, NULL
);
6721 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6723 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6724 /* Read the specs file unless it is a default one. */
6725 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6726 read_specs (specs_file
, TRUE
);
6730 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6731 for any override of as, ld and libraries. */
6732 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6733 + strlen (just_machine_suffix
) + sizeof ("specs"));
6735 strcpy (specs_file
, standard_exec_prefix
);
6736 strcat (specs_file
, just_machine_suffix
);
6737 strcat (specs_file
, "specs");
6738 if (access (specs_file
, R_OK
) == 0)
6739 read_specs (specs_file
, TRUE
);
6741 /* Process any configure-time defaults specified for the command line
6742 options, via OPTION_DEFAULT_SPECS. */
6743 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6744 do_option_spec (option_default_specs
[i
].name
,
6745 option_default_specs
[i
].spec
);
6747 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6748 of the command line. */
6750 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6751 do_self_spec (driver_self_specs
[i
]);
6755 enum save_temps save
;
6757 if (!compare_debug_second
)
6759 n_switches_debug_check
[1] = n_switches
;
6760 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6763 do_self_spec ("%:compare-debug-self-opt()");
6764 n_switches_debug_check
[0] = n_switches
;
6765 switches_debug_check
[0] = switches
;
6767 n_switches
= n_switches_debug_check
[1];
6768 switches
= switches_debug_check
[1];
6771 /* Avoid crash when computing %j in this early. */
6772 save
= save_temps_flag
;
6773 save_temps_flag
= SAVE_TEMPS_NONE
;
6775 compare_debug
= -compare_debug
;
6776 do_self_spec ("%:compare-debug-self-opt()");
6778 save_temps_flag
= save
;
6780 if (!compare_debug_second
)
6782 n_switches_debug_check
[1] = n_switches
;
6783 switches_debug_check
[1] = switches
;
6784 compare_debug
= -compare_debug
;
6785 n_switches
= n_switches_debug_check
[0];
6786 switches
= switches_debug_check
[0];
6790 /* If not cross-compiling, look for executables in the standard
6792 if (*cross_compile
== '0')
6794 if (*md_exec_prefix
)
6796 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6797 PREFIX_PRIORITY_LAST
, 0, 0);
6801 /* Process sysroot_suffix_spec. */
6802 if (*sysroot_suffix_spec
!= 0
6803 && do_spec_2 (sysroot_suffix_spec
) == 0)
6805 if (argbuf_index
> 1)
6806 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6807 else if (argbuf_index
== 1)
6808 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6811 #ifdef HAVE_LD_SYSROOT
6812 /* Pass the --sysroot option to the linker, if it supports that. If
6813 there is a sysroot_suffix_spec, it has already been processed by
6814 this point, so target_system_root really is the system root we
6816 if (target_system_root
)
6818 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6819 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6820 set_spec ("link", XOBFINISH (&obstack
, const char *));
6824 /* Process sysroot_hdrs_suffix_spec. */
6825 if (*sysroot_hdrs_suffix_spec
!= 0
6826 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6828 if (argbuf_index
> 1)
6829 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6830 else if (argbuf_index
== 1)
6831 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6834 /* Look for startfiles in the standard places. */
6835 if (*startfile_prefix_spec
!= 0
6836 && do_spec_2 (startfile_prefix_spec
) == 0
6837 && do_spec_1 (" ", 0, NULL
) == 0)
6840 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6841 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6842 PREFIX_PRIORITY_LAST
, 0, 1);
6844 /* We should eventually get rid of all these and stick to
6845 startfile_prefix_spec exclusively. */
6846 else if (*cross_compile
== '0' || target_system_root
)
6848 if (*md_startfile_prefix
)
6849 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6850 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6852 if (*md_startfile_prefix_1
)
6853 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6854 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6856 /* If standard_startfile_prefix is relative, base it on
6857 standard_exec_prefix. This lets us move the installed tree
6858 as a unit. If GCC_EXEC_PREFIX is defined, base
6859 standard_startfile_prefix on that as well.
6861 If the prefix is relative, only search it for native compilers;
6862 otherwise we will search a directory containing host libraries. */
6863 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6864 add_sysrooted_prefix (&startfile_prefixes
,
6865 standard_startfile_prefix
, "BINUTILS",
6866 PREFIX_PRIORITY_LAST
, 0, 1);
6867 else if (*cross_compile
== '0')
6869 add_prefix (&startfile_prefixes
,
6870 concat (gcc_exec_prefix
6871 ? gcc_exec_prefix
: standard_exec_prefix
,
6873 standard_startfile_prefix
, NULL
),
6874 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6877 /* Sysrooted prefixes are relocated because target_system_root is
6878 also relocated by gcc_exec_prefix. */
6879 if (*standard_startfile_prefix_1
)
6880 add_sysrooted_prefix (&startfile_prefixes
,
6881 standard_startfile_prefix_1
, "BINUTILS",
6882 PREFIX_PRIORITY_LAST
, 0, 1);
6883 if (*standard_startfile_prefix_2
)
6884 add_sysrooted_prefix (&startfile_prefixes
,
6885 standard_startfile_prefix_2
, "BINUTILS",
6886 PREFIX_PRIORITY_LAST
, 0, 1);
6889 /* Process any user specified specs in the order given on the command
6891 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6893 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6895 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6898 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6899 if (gcc_exec_prefix
)
6900 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6901 spec_version
, dir_separator_str
, NULL
);
6903 /* Now we have the specs.
6904 Set the `valid' bits for switches that match anything in any spec. */
6906 validate_all_switches ();
6908 /* Now that we have the switches and the specs, set
6909 the subdirectory based on the options. */
6910 set_multilib_dir ();
6912 /* Set up to remember the pathname of gcc and any options
6913 needed for collect. We use argv[0] instead of progname because
6914 we need the complete pathname. */
6915 obstack_init (&collect_obstack
);
6916 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6917 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6918 xputenv (XOBFINISH (&collect_obstack
, char *));
6920 /* Set up to remember the pathname of the lto wrapper. */
6922 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
6923 if (lto_wrapper_spec
)
6925 obstack_init (&collect_obstack
);
6926 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6927 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6928 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6929 strlen (lto_wrapper_spec
) + 1);
6930 xputenv (XOBFINISH (&collect_obstack
, char *));
6933 /* Warn about any switches that no pass was interested in. */
6935 for (i
= 0; (int) i
< n_switches
; i
++)
6936 if (! switches
[i
].validated
)
6937 error ("unrecognized option %<-%s%>", switches
[i
].part1
);
6939 /* Obey some of the options. */
6941 if (print_search_dirs
)
6943 printf (_("install: %s%s\n"),
6944 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6945 gcc_exec_prefix
? "" : machine_suffix
);
6946 printf (_("programs: %s\n"),
6947 build_search_list (&exec_prefixes
, "", false, false));
6948 printf (_("libraries: %s\n"),
6949 build_search_list (&startfile_prefixes
, "", false, true));
6953 if (print_file_name
)
6955 printf ("%s\n", find_file (print_file_name
));
6959 if (print_prog_name
)
6961 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6962 printf ("%s\n", (newname
? newname
: print_prog_name
));
6966 if (print_multi_lib
)
6968 print_multilib_info ();
6972 if (print_multi_directory
)
6974 if (multilib_dir
== NULL
)
6977 printf ("%s\n", multilib_dir
);
6983 if (target_system_root
)
6985 if (target_sysroot_suffix
)
6986 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6988 printf ("%s\n", target_system_root
);
6993 if (print_multi_os_directory
)
6995 if (multilib_os_dir
== NULL
)
6998 printf ("%s\n", multilib_os_dir
);
7002 if (print_sysroot_headers_suffix
)
7004 if (*sysroot_hdrs_suffix_spec
)
7006 printf("%s\n", (target_sysroot_hdrs_suffix
7007 ? target_sysroot_hdrs_suffix
7012 /* The error status indicates that only one set of fixed
7013 headers should be built. */
7014 fatal_error ("not configured with sysroot headers suffix");
7017 if (print_help_list
)
7023 printf (_("\nFor bug reporting instructions, please see:\n"));
7024 printf ("%s.\n", bug_report_url
);
7029 /* We do not exit here. Instead we have created a fake input file
7030 called 'help-dummy' which needs to be compiled, and we pass this
7031 on the various sub-processes, along with the --help switch.
7032 Ensure their output appears after ours. */
7033 fputc ('\n', stdout
);
7039 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7041 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
7043 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7044 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7049 /* We do not exit here. We use the same mechanism of --help to print
7050 the version of the sub-processes. */
7051 fputc ('\n', stdout
);
7060 fnotice (stderr
, "Target: %s\n", spec_machine
);
7061 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
7063 #ifdef THREAD_MODEL_SPEC
7064 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7065 but there's no point in doing all this processing just to get
7066 thread_model back. */
7067 obstack_init (&obstack
);
7068 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7069 obstack_1grow (&obstack
, '\0');
7070 thrmod
= XOBFINISH (&obstack
, const char *);
7072 thrmod
= thread_model
;
7075 fnotice (stderr
, "Thread model: %s\n", thrmod
);
7077 /* compiler_version is truncated at the first space when initialized
7078 from version string, so truncate version_string at the first space
7079 before comparing. */
7080 for (n
= 0; version_string
[n
]; n
++)
7081 if (version_string
[n
] == ' ')
7084 if (! strncmp (version_string
, compiler_version
, n
)
7085 && compiler_version
[n
] == 0)
7086 fnotice (stderr
, "gcc version %s %s\n", version_string
,
7089 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
7090 version_string
, pkgversion_string
, compiler_version
);
7096 if (n_infiles
== added_libraries
)
7097 fatal_error ("no input files");
7099 /* Make a place to record the compiler output file names
7100 that correspond to the input files. */
7103 i
+= lang_specific_extra_outfiles
;
7104 outfiles
= XCNEWVEC (const char *, i
);
7106 /* Record which files were specified explicitly as link input. */
7108 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7111 combine_inputs
= true;
7113 combine_inputs
= false;
7115 for (i
= 0; (int) i
< n_infiles
; i
++)
7117 const char *name
= infiles
[i
].name
;
7118 struct compiler
*compiler
= lookup_compiler (name
,
7120 infiles
[i
].language
);
7122 if (compiler
&& !(compiler
->combinable
))
7123 combine_inputs
= false;
7125 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7126 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7127 infiles
[i
].incompiler
= compiler
;
7131 input_file_compiler
= compiler
;
7132 infiles
[i
].incompiler
= compiler
;
7136 /* Since there is no compiler for this input file, assume it is a
7138 explicit_link_files
[i
] = 1;
7139 infiles
[i
].incompiler
= NULL
;
7141 infiles
[i
].compiled
= false;
7142 infiles
[i
].preprocessed
= false;
7145 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7146 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
7148 if (combine_flag
&& save_temps_flag
)
7150 bool save_combine_inputs
= combine_inputs
;
7151 /* Must do a separate pre-processing pass for C & Objective-C files, to
7152 obtain individual .i files. */
7154 combine_inputs
= false;
7155 for (i
= 0; (int) i
< n_infiles
; i
++)
7157 int this_file_error
= 0;
7159 input_file_number
= i
;
7160 set_input (infiles
[i
].name
);
7161 if (infiles
[i
].incompiler
7162 && (infiles
[i
].incompiler
)->needs_preprocessing
)
7163 input_file_compiler
= infiles
[i
].incompiler
;
7167 if (input_file_compiler
)
7169 if (input_file_compiler
->spec
[0] == '#')
7171 error ("%s: %s compiler not installed on this system",
7172 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7173 this_file_error
= 1;
7177 value
= do_spec (input_file_compiler
->spec
);
7178 infiles
[i
].preprocessed
= true;
7179 if (!have_o_argbuf_index
)
7180 fatal_error ("spec %qs is invalid",
7181 input_file_compiler
->spec
);
7182 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
7183 infiles
[i
].incompiler
7184 = lookup_compiler (infiles
[i
].name
,
7185 strlen (infiles
[i
].name
),
7186 infiles
[i
].language
);
7189 this_file_error
= 1;
7193 if (this_file_error
)
7195 delete_failure_queue ();
7199 clear_failure_queue ();
7201 combine_inputs
= save_combine_inputs
;
7204 for (i
= 0; (int) i
< n_infiles
; i
++)
7206 int this_file_error
= 0;
7208 /* Tell do_spec what to substitute for %i. */
7210 input_file_number
= i
;
7211 set_input (infiles
[i
].name
);
7213 if (infiles
[i
].compiled
)
7216 /* Use the same thing in %o, unless cp->spec says otherwise. */
7218 outfiles
[i
] = gcc_input_filename
;
7220 /* Figure out which compiler from the file's suffix. */
7222 if (! combine_inputs
)
7224 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7225 infiles
[i
].language
);
7227 input_file_compiler
= infiles
[i
].incompiler
;
7229 if (input_file_compiler
)
7231 /* Ok, we found an applicable compiler. Run its spec. */
7233 if (input_file_compiler
->spec
[0] == '#')
7235 error ("%s: %s compiler not installed on this system",
7236 gcc_input_filename
, &input_file_compiler
->spec
[1]);
7237 this_file_error
= 1;
7243 if (debug_check_temp_file
[0])
7244 free (debug_check_temp_file
[0]);
7245 debug_check_temp_file
[0] = NULL
;
7247 if (debug_check_temp_file
[1])
7248 free (debug_check_temp_file
[1]);
7249 debug_check_temp_file
[1] = NULL
;
7252 value
= do_spec (input_file_compiler
->spec
);
7253 infiles
[i
].compiled
= true;
7255 this_file_error
= 1;
7256 else if (compare_debug
&& debug_check_temp_file
[0])
7259 inform (0, "recompiling with -fcompare-debug");
7261 compare_debug
= -compare_debug
;
7262 n_switches
= n_switches_debug_check
[1];
7263 switches
= switches_debug_check
[1];
7265 value
= do_spec (input_file_compiler
->spec
);
7267 compare_debug
= -compare_debug
;
7268 n_switches
= n_switches_debug_check
[0];
7269 switches
= switches_debug_check
[0];
7273 error ("during -fcompare-debug recompilation");
7274 this_file_error
= 1;
7277 gcc_assert (debug_check_temp_file
[1]
7278 && strcmp (debug_check_temp_file
[0],
7279 debug_check_temp_file
[1]));
7282 inform (0, "comparing final insns dumps");
7284 if (compare_files (debug_check_temp_file
))
7285 this_file_error
= 1;
7290 if (debug_check_temp_file
[0])
7291 free (debug_check_temp_file
[0]);
7292 debug_check_temp_file
[0] = NULL
;
7294 if (debug_check_temp_file
[1])
7295 free (debug_check_temp_file
[1]);
7296 debug_check_temp_file
[1] = NULL
;
7301 /* If this file's name does not contain a recognized suffix,
7302 record it as explicit linker input. */
7305 explicit_link_files
[i
] = 1;
7307 /* Clear the delete-on-failure queue, deleting the files in it
7308 if this compilation failed. */
7310 if (this_file_error
)
7312 delete_failure_queue ();
7315 /* If this compilation succeeded, don't delete those files later. */
7316 clear_failure_queue ();
7319 /* Reset the input file name to the first compile/object file name, for use
7320 with %b in LINK_SPEC. We use the first input file that we can find
7321 a compiler to compile it instead of using infiles.language since for
7322 languages other than C we use aliases that we then lookup later. */
7327 for (i
= 0; i
< n_infiles
; i
++)
7328 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7330 set_input (infiles
[i
].name
);
7337 /* Make sure INPUT_FILE_NUMBER points to first available open
7339 input_file_number
= n_infiles
;
7340 if (lang_specific_pre_link ())
7344 /* Determine if there are any linker input files. */
7345 num_linker_inputs
= 0;
7346 for (i
= 0; (int) i
< n_infiles
; i
++)
7347 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7348 num_linker_inputs
++;
7350 /* Run ld to link all the compiler output files. */
7352 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
7354 int tmp
= execution_count
;
7355 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7357 /* We'll use ld if we can't find collect2. */
7358 if (! strcmp (linker_name_spec
, "collect2"))
7360 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7362 linker_name_spec
= "ld";
7365 if (switch_matches (fuse_linker_plugin
,
7366 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
7368 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
7369 "liblto_plugin.so", R_OK
,
7371 if (!linker_plugin_file_spec
)
7372 fatal_error ("-fuse-linker-plugin, but liblto_plugin.so not found");
7374 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
7376 if (!lto_libgcc_spec
)
7377 fatal_error ("could not find libgcc.a");
7379 lto_gcc_spec
= argv
[0];
7381 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7383 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7384 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7386 if (print_subprocess_help
== 1)
7388 printf (_("\nLinker options\n==============\n\n"));
7389 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7390 " to the linker.\n\n"));
7393 value
= do_spec (link_command_spec
);
7396 linker_was_run
= (tmp
!= execution_count
);
7399 /* If options said don't run linker,
7400 complain about input files to be given to the linker. */
7402 if (! linker_was_run
&& !seen_error ())
7403 for (i
= 0; (int) i
< n_infiles
; i
++)
7404 if (explicit_link_files
[i
]
7405 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7406 warning (0, "%s: linker input file unused because linking not done",
7409 /* Delete some or all of the temporary files we made. */
7412 delete_failure_queue ();
7413 delete_temp_files ();
7415 if (print_help_list
)
7417 printf (("\nFor bug reporting instructions, please see:\n"));
7418 printf ("%s\n", bug_report_url
);
7421 return (signal_count
!= 0 ? 2
7422 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
7426 /* Find the proper compilation spec for the file name NAME,
7427 whose length is LENGTH. LANGUAGE is the specified language,
7428 or 0 if this file is to be passed to the linker. */
7430 static struct compiler
*
7431 lookup_compiler (const char *name
, size_t length
, const char *language
)
7433 struct compiler
*cp
;
7435 /* If this was specified by the user to be a linker input, indicate that. */
7436 if (language
!= 0 && language
[0] == '*')
7439 /* Otherwise, look for the language, if one is spec'd. */
7442 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7443 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7446 error ("language %s not recognized", language
);
7450 /* Look for a suffix. */
7451 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7453 if (/* The suffix `-' matches only the file name `-'. */
7454 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7455 || (strlen (cp
->suffix
) < length
7456 /* See if the suffix matches the end of NAME. */
7457 && !strcmp (cp
->suffix
,
7458 name
+ length
- strlen (cp
->suffix
))
7463 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7464 /* Look again, but case-insensitively this time. */
7466 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7468 if (/* The suffix `-' matches only the file name `-'. */
7469 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7470 || (strlen (cp
->suffix
) < length
7471 /* See if the suffix matches the end of NAME. */
7472 && ((!strcmp (cp
->suffix
,
7473 name
+ length
- strlen (cp
->suffix
))
7474 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7475 && !strcasecmp (cp
->suffix
,
7476 name
+ length
- strlen (cp
->suffix
)))
7482 if (cp
>= compilers
)
7484 if (cp
->spec
[0] != '@')
7485 /* A non-alias entry: return it. */
7488 /* An alias entry maps a suffix to a language.
7489 Search for the language; pass 0 for NAME and LENGTH
7490 to avoid infinite recursion if language not found. */
7491 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7497 save_string (const char *s
, int len
)
7499 char *result
= XNEWVEC (char, len
+ 1);
7501 memcpy (result
, s
, len
);
7507 pfatal_with_name (const char *name
)
7509 perror_with_name (name
);
7510 delete_temp_files ();
7515 perror_with_name (const char *name
)
7517 error ("%s: %m", name
);
7521 validate_switches_from_spec (const char *spec
)
7523 const char *p
= spec
;
7526 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7527 /* We have a switch spec. */
7528 p
= validate_switches (p
+ 1);
7532 validate_all_switches (void)
7534 struct compiler
*comp
;
7535 struct spec_list
*spec
;
7537 for (comp
= compilers
; comp
->spec
; comp
++)
7538 validate_switches_from_spec (comp
->spec
);
7540 /* Look through the linked list of specs read from the specs file. */
7541 for (spec
= specs
; spec
; spec
= spec
->next
)
7542 validate_switches_from_spec (*spec
->ptr_spec
);
7544 validate_switches_from_spec (link_command_spec
);
7547 /* Look at the switch-name that comes after START
7548 and mark as valid all supplied switches that match it. */
7551 validate_switches (const char *start
)
7553 const char *p
= start
;
7557 bool suffix
= false;
7558 bool starred
= false;
7560 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7569 if (*p
== '.' || *p
== ',')
7573 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7574 || *p
== ',' || *p
== '.' || *p
== '@')
7579 starred
= true, p
++;
7585 /* Mark all matching switches as valid. */
7586 for (i
= 0; i
< n_switches
; i
++)
7587 if (!strncmp (switches
[i
].part1
, atom
, len
)
7588 && (starred
|| switches
[i
].part1
[len
] == 0))
7589 switches
[i
].validated
= 1;
7593 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7596 if (*p
&& p
[-1] == ':')
7598 while (*p
&& *p
!= ';' && *p
!= '}')
7603 if (*p
== '{' || *p
== '<')
7604 p
= validate_switches (p
+1);
7605 else if (p
[0] == 'W' && p
[1] == '{')
7606 p
= validate_switches (p
+2);
7613 if (*p
&& p
[-1] == ';')
7627 static struct mdswitchstr
*mdswitches
;
7628 static int n_mdswitches
;
7630 /* Check whether a particular argument was used. The first time we
7631 canonicalize the switches to keep only the ones we care about. */
7634 used_arg (const char *p
, int len
)
7639 const char *replace
;
7644 static struct mswitchstr
*mswitches
;
7645 static int n_mswitches
;
7650 struct mswitchstr
*matches
;
7654 /* Break multilib_matches into the component strings of string
7655 and replacement string. */
7656 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7661 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7663 q
= multilib_matches
;
7672 fatal_error ("multilib spec %qs is invalid",
7677 matches
[i
].len
= q
- matches
[i
].str
;
7679 matches
[i
].replace
= ++q
;
7680 while (*q
!= ';' && *q
!= '\0')
7683 goto invalid_matches
;
7686 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7692 /* Now build a list of the replacement string for switches that we care
7693 about. Make sure we allocate at least one entry. This prevents
7694 xmalloc from calling fatal, and prevents us from re-executing this
7697 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7698 for (i
= 0; i
< n_switches
; i
++)
7699 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7701 int xlen
= strlen (switches
[i
].part1
);
7702 for (j
= 0; j
< cnt
; j
++)
7703 if (xlen
== matches
[j
].len
7704 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7706 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7707 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7708 mswitches
[n_mswitches
].replace
= (char *) 0;
7709 mswitches
[n_mswitches
].rep_len
= 0;
7715 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7716 on the command line nor any options mutually incompatible with
7718 for (i
= 0; i
< n_mdswitches
; i
++)
7722 for (q
= multilib_options
; *q
!= '\0'; q
++)
7728 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7729 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7731 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7738 if (*q
!= ' ' && *q
!= '\0')
7740 while (*r
!= ' ' && *r
!= '\0')
7743 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7746 if (used_arg (r
, q
- r
))
7751 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7752 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7753 mswitches
[n_mswitches
].replace
= (char *) 0;
7754 mswitches
[n_mswitches
].rep_len
= 0;
7767 for (i
= 0; i
< n_mswitches
; i
++)
7768 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7775 default_arg (const char *p
, int len
)
7779 for (i
= 0; i
< n_mdswitches
; i
++)
7780 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7786 /* Work out the subdirectory to use based on the options. The format of
7787 multilib_select is a list of elements. Each element is a subdirectory
7788 name followed by a list of options followed by a semicolon. The format
7789 of multilib_exclusions is the same, but without the preceding
7790 directory. First gcc will check the exclusions, if none of the options
7791 beginning with an exclamation point are present, and all of the other
7792 options are present, then we will ignore this completely. Passing
7793 that, gcc will consider each multilib_select in turn using the same
7794 rules for matching the options. If a match is found, that subdirectory
7798 set_multilib_dir (void)
7801 unsigned int this_path_len
;
7802 const char *this_path
, *this_arg
;
7803 const char *start
, *end
;
7805 int ok
, ndfltok
, first
;
7808 start
= multilib_defaults
;
7809 while (*start
== ' ' || *start
== '\t')
7811 while (*start
!= '\0')
7814 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7816 while (*start
== ' ' || *start
== '\t')
7824 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7825 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7827 while (*start
== ' ' || *start
== '\t')
7833 for (end
= start
+ 1;
7834 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7837 obstack_grow (&multilib_obstack
, start
, end
- start
);
7838 obstack_1grow (&multilib_obstack
, 0);
7839 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7840 mdswitches
[i
++].len
= end
- start
;
7847 p
= multilib_exclusions
;
7850 /* Ignore newlines. */
7857 /* Check the arguments. */
7864 fatal_error ("multilib exclusions %qs is invalid",
7865 multilib_exclusions
);
7875 while (*p
!= ' ' && *p
!= ';')
7878 goto invalid_exclusions
;
7882 if (*this_arg
!= '!')
7890 ok
= used_arg (this_arg
, p
- this_arg
);
7905 p
= multilib_select
;
7908 /* Ignore newlines. */
7915 /* Get the initial path. */
7922 fatal_error ("multilib select %qs is invalid",
7927 this_path_len
= p
- this_path
;
7929 /* Check the arguments. */
7936 goto invalid_select
;
7945 while (*p
!= ' ' && *p
!= ';')
7948 goto invalid_select
;
7952 if (*this_arg
!= '!')
7960 /* If this is a default argument, we can just ignore it.
7961 This is true even if this_arg begins with '!'. Beginning
7962 with '!' does not mean that this argument is necessarily
7963 inappropriate for this library: it merely means that
7964 there is a more specific library which uses this
7965 argument. If this argument is a default, we need not
7966 consider that more specific library. */
7967 ok
= used_arg (this_arg
, p
- this_arg
);
7974 if (default_arg (this_arg
, p
- this_arg
))
7983 if (this_path_len
!= 1
7984 || this_path
[0] != '.')
7986 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7989 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7990 new_multilib_dir
[this_path_len
] = '\0';
7991 q
= strchr (new_multilib_dir
, ':');
7994 multilib_dir
= new_multilib_dir
;
8001 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8003 while (q
< end
&& *q
!= ':')
8007 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
8008 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
8009 new_multilib_os_dir
[end
- q
- 1] = '\0';
8010 multilib_os_dir
= new_multilib_os_dir
;
8018 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8019 && strcmp (multilib_os_dir
, ".") == 0)
8021 free (CONST_CAST (char *, multilib_os_dir
));
8022 multilib_os_dir
= NULL
;
8024 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8025 multilib_os_dir
= multilib_dir
;
8028 /* Print out the multiple library subdirectory selection
8029 information. This prints out a series of lines. Each line looks
8030 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8031 required. Only the desired options are printed out, the negative
8032 matches. The options are print without a leading dash. There are
8033 no spaces to make it easy to use the information in the shell.
8034 Each subdirectory is printed only once. This assumes the ordering
8035 generated by the genmultilib script. Also, we leave out ones that match
8039 print_multilib_info (void)
8041 const char *p
= multilib_select
;
8042 const char *last_path
= 0, *this_path
;
8044 unsigned int last_path_len
= 0;
8049 /* Ignore newlines. */
8056 /* Get the initial path. */
8063 fatal_error ("multilib select %qs is invalid", multilib_select
);
8069 /* When --disable-multilib was used but target defines
8070 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8071 to find multilib_os_dir, so skip them from output. */
8072 if (this_path
[0] == '.' && this_path
[1] == ':')
8075 /* Check for matches with the multilib_exclusions. We don't bother
8076 with the '!' in either list. If any of the exclusion rules match
8077 all of its options with the select rule, we skip it. */
8079 const char *e
= multilib_exclusions
;
8080 const char *this_arg
;
8085 /* Ignore newlines. */
8092 /* Check the arguments. */
8101 fatal_error ("multilib exclusion %qs is invalid",
8102 multilib_exclusions
);
8113 while (*e
!= ' ' && *e
!= ';')
8116 goto invalid_exclusion
;
8124 int len
= e
- this_arg
;
8127 goto invalid_select
;
8131 while (*q
!= ' ' && *q
!= ';')
8134 goto invalid_select
;
8138 if (! strncmp (arg
, this_arg
,
8139 (len
< q
- arg
) ? q
- arg
: len
)
8140 || default_arg (this_arg
, e
- this_arg
))
8170 /* If this is a duplicate, skip it. */
8171 skip
= (last_path
!= 0
8172 && (unsigned int) (p
- this_path
) == last_path_len
8173 && ! strncmp (last_path
, this_path
, last_path_len
));
8175 last_path
= this_path
;
8176 last_path_len
= p
- this_path
;
8179 /* If this directory requires any default arguments, we can skip
8180 it. We will already have printed a directory identical to
8181 this one which does not require that default argument. */
8192 goto invalid_select
;
8199 while (*q
!= ' ' && *q
!= ';')
8202 goto invalid_select
;
8207 && default_arg (arg
, q
- arg
))
8222 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8233 goto invalid_select
;
8241 use_arg
= *p
!= '!';
8246 while (*p
!= ' ' && *p
!= ';')
8249 goto invalid_select
;
8261 /* If there are extra options, print them now. */
8262 if (multilib_extra
&& *multilib_extra
)
8264 int print_at
= TRUE
;
8267 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8288 /* getenv built-in spec function.
8290 Returns the value of the environment variable given by its first
8291 argument, concatenated with the second argument. If the
8292 environment variable is not defined, a fatal error is issued. */
8295 getenv_spec_function (int argc
, const char **argv
)
8305 value
= getenv (argv
[0]);
8307 fatal_error ("environment variable %qs not defined", argv
[0]);
8309 /* We have to escape every character of the environment variable so
8310 they are not interpreted as active spec characters. A
8311 particularly painful case is when we are reading a variable
8312 holding a windows path complete with \ separators. */
8313 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8314 result
= XNEWVAR (char, len
);
8315 for (ptr
= result
; *value
; ptr
+= 2)
8321 strcpy (ptr
, argv
[1]);
8326 /* if-exists built-in spec function.
8328 Checks to see if the file specified by the absolute pathname in
8329 ARGS exists. Returns that pathname if found.
8331 The usual use for this function is to check for a library file
8332 (whose name has been expanded with %s). */
8335 if_exists_spec_function (int argc
, const char **argv
)
8337 /* Must have only one argument. */
8338 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8344 /* if-exists-else built-in spec function.
8346 This is like if-exists, but takes an additional argument which
8347 is returned if the first argument does not exist. */
8350 if_exists_else_spec_function (int argc
, const char **argv
)
8352 /* Must have exactly two arguments. */
8356 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8362 /* replace-outfile built-in spec function.
8364 This looks for the first argument in the outfiles array's name and
8365 replaces it with the second argument. */
8368 replace_outfile_spec_function (int argc
, const char **argv
)
8371 /* Must have exactly two arguments. */
8375 for (i
= 0; i
< n_infiles
; i
++)
8377 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
8378 outfiles
[i
] = xstrdup (argv
[1]);
8383 /* Given two version numbers, compares the two numbers.
8384 A version number must match the regular expression
8385 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8388 compare_version_strings (const char *v1
, const char *v2
)
8393 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8394 REG_EXTENDED
| REG_NOSUB
) != 0)
8396 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8397 if (rresult
== REG_NOMATCH
)
8398 fatal_error ("invalid version number %qs", v1
);
8399 else if (rresult
!= 0)
8401 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8402 if (rresult
== REG_NOMATCH
)
8403 fatal_error ("invalid version number %qs", v2
);
8404 else if (rresult
!= 0)
8407 return strverscmp (v1
, v2
);
8411 /* version_compare built-in spec function.
8413 This takes an argument of the following form:
8415 <comparison-op> <arg1> [<arg2>] <switch> <result>
8417 and produces "result" if the comparison evaluates to true,
8418 and nothing if it doesn't.
8420 The supported <comparison-op> values are:
8422 >= true if switch is a later (or same) version than arg1
8424 < true if switch is an earlier version than arg1
8426 >< true if switch is arg1 or later, and earlier than arg2
8427 <> true if switch is earlier than arg1 or is arg2 or later
8429 If the switch is not present, the condition is false unless
8430 the first character of the <comparison-op> is '!'.
8433 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8434 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8437 version_compare_spec_function (int argc
, const char **argv
)
8441 const char *switch_value
= NULL
;
8446 fatal_error ("too few arguments to %%:version-compare");
8447 if (argv
[0][0] == '\0')
8449 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8451 if (argc
!= nargs
+ 3)
8452 fatal_error ("too many arguments to %%:version-compare");
8454 switch_len
= strlen (argv
[nargs
+ 1]);
8455 for (i
= 0; i
< n_switches
; i
++)
8456 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8457 && check_live_switch (i
, switch_len
))
8458 switch_value
= switches
[i
].part1
+ switch_len
;
8460 if (switch_value
== NULL
)
8464 comp1
= compare_version_strings (switch_value
, argv
[1]);
8466 comp2
= compare_version_strings (switch_value
, argv
[2]);
8468 comp2
= -1; /* This value unused. */
8471 switch (argv
[0][0] << 8 | argv
[0][1])
8473 case '>' << 8 | '=':
8474 result
= comp1
>= 0;
8476 case '!' << 8 | '<':
8477 result
= comp1
>= 0 || switch_value
== NULL
;
8482 case '!' << 8 | '>':
8483 result
= comp1
< 0 || switch_value
== NULL
;
8485 case '>' << 8 | '<':
8486 result
= comp1
>= 0 && comp2
< 0;
8488 case '<' << 8 | '>':
8489 result
= comp1
< 0 || comp2
>= 0;
8493 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
8498 return argv
[nargs
+ 2];
8501 /* %:include builtin spec function. This differs from %include in that it
8502 can be nested inside a spec, and thus be conditionalized. It takes
8503 one argument, the filename, and looks for it in the startfile path.
8504 The result is always NULL, i.e. an empty expansion. */
8507 include_spec_function (int argc
, const char **argv
)
8514 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8515 read_specs (file
? file
: argv
[0], FALSE
);
8520 /* %:find-file spec function. This function replaces its argument by
8521 the file found thru find_file, that is the -print-file-name gcc
8524 find_file_spec_function (int argc
, const char **argv
)
8531 file
= find_file (argv
[0]);
8536 /* %:find-plugindir spec function. This function replaces its argument
8537 by the -iplugindir=<dir> option. `dir' is found thru find_file, that
8538 is the -print-file-name gcc program option. */
8540 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8547 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8552 /* %:print-asm-header spec function. Print a banner to say that the
8553 following output is from the assembler. */
8556 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8557 const char **argv ATTRIBUTE_UNUSED
)
8559 printf (_("Assembler options\n=================\n\n"));
8560 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8565 /* Compute a timestamp to initialize flag_random_seed. */
8568 get_local_tick (void)
8572 /* Get some more or less random data. */
8573 #ifdef HAVE_GETTIMEOFDAY
8577 gettimeofday (&tv
, NULL
);
8578 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8582 time_t now
= time (NULL
);
8584 if (now
!= (time_t)-1)
8585 ret
= (unsigned) now
;
8592 /* %:compare-debug-dump-opt spec function. Save the last argument,
8593 expected to be the last -fdump-final-insns option, or generate a
8597 compare_debug_dump_opt_spec_function (int arg
,
8598 const char **argv ATTRIBUTE_UNUSED
)
8603 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8606 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8608 do_spec_2 ("%{fdump-final-insns=*:%*}");
8609 do_spec_1 (" ", 0, NULL
);
8611 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8616 name
= xstrdup (argv
[argbuf_index
- 1]);
8621 const char *ext
= NULL
;
8623 if (argbuf_index
> 0)
8625 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8628 else if (!compare_debug
)
8631 do_spec_2 ("%g.gkd");
8633 do_spec_1 (" ", 0, NULL
);
8635 gcc_assert (argbuf_index
> 0);
8637 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8639 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8642 which
= compare_debug
< 0;
8643 debug_check_temp_file
[which
] = name
;
8647 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8649 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8653 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8662 static const char *debug_auxbase_opt
;
8664 /* %:compare-debug-self-opt spec function. Expands to the options
8665 that are to be passed in the second compilation of
8669 compare_debug_self_opt_spec_function (int arg
,
8670 const char **argv ATTRIBUTE_UNUSED
)
8673 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8675 if (compare_debug
>= 0)
8678 do_spec_2 ("%{c|S:%{o*:%*}}");
8679 do_spec_1 (" ", 0, NULL
);
8681 if (argbuf_index
> 0)
8682 debug_auxbase_opt
= concat ("-auxbase-strip ",
8683 argbuf
[argbuf_index
- 1],
8686 debug_auxbase_opt
= NULL
;
8689 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8690 %<fdump-final-insns=* -w -S -o %j \
8691 %{!fcompare-debug-second:-fcompare-debug-second} \
8692 ", compare_debug_opt
, NULL
);
8695 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8696 options that are to be passed in the second compilation of
8697 compare-debug. It expects, as an argument, the basename of the
8698 current input file name, with the .gk suffix appended to it. */
8701 compare_debug_auxbase_opt_spec_function (int arg
,
8708 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8711 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8713 if (compare_debug
>= 0)
8716 len
= strlen (argv
[0]);
8717 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8718 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8719 "does not end in .gk");
8721 if (debug_auxbase_opt
)
8722 return debug_auxbase_opt
;
8724 #define OPT "-auxbase "
8727 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8728 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8729 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8730 name
[sizeof (OPT
) - 1 + len
] = '\0';