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 Free Software Foundation,
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 This paragraph is here to try to keep Sun CC from dying.
24 The number of chars here seems crucial!!!! */
26 /* This program is the user interface to the C compiler and possibly to
27 other compilers. It is used because compilation is a complicated procedure
28 which involves running several programs and passing temporary files between
29 them, forwarding the users switches to those programs selectively,
30 and deleting the temporary files at the end.
32 CC recognizes how to compile each input file by suffixes in the file names.
33 Once it knows which kind of compilation to perform, the procedure for
34 compilation is specified by a string called a "spec". */
36 /* A Short Introduction to Adding a Command-Line Option.
38 Before adding a command-line option, consider if it is really
39 necessary. Each additional command-line option adds complexity and
40 is difficult to remove in subsequent versions.
42 In the following, consider adding the command-line argument
45 1. Each command-line option is specified in the specs file. The
46 notation is described below in the comment entitled "The Specs
49 2. In this file, add an entry to "option_map" equating the long
50 `--' argument version and any shorter, single letter version. Read
51 the comments in the declaration of "struct option_map" for an
52 explanation. Do not omit the first `-'.
54 3. Look in the "specs" file to determine which program or option
55 list should be given the argument, e.g., "cc1_options". Add the
56 appropriate syntax for the shorter option version to the
57 corresponding "const char *" entry in this file. Omit the first
58 `-' from the option. For example, use `-bar', rather than `--bar'.
60 4. If the argument takes an argument, e.g., `--baz argument1',
61 modify either DEFAULT_SWITCH_TAKES_ARG or
62 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
65 5. Document the option in this file's display_help(). If the
66 option is passed to a subprogram, modify its corresponding
67 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
70 6. Compile and test. Make sure that your new specs file is being
71 read. For example, use a debugger to investigate the value of
72 "specs_file" in main(). */
76 #include "coretypes.h"
77 #include "multilib.h" /* before tm.h */
80 #if ! defined( SIGCHLD ) && defined( SIGCLD )
81 # define SIGCHLD SIGCLD
90 /* By default there is no special suffix for target executables. */
91 /* FIXME: when autoconf is fixed, remove the host check - dj */
92 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
93 #define HAVE_TARGET_EXECUTABLE_SUFFIX
96 /* By default there is no special suffix for host executables. */
97 #ifdef HOST_EXECUTABLE_SUFFIX
98 #define HAVE_HOST_EXECUTABLE_SUFFIX
100 #define HOST_EXECUTABLE_SUFFIX ""
103 /* By default, the suffix for target object files is ".o". */
104 #ifdef TARGET_OBJECT_SUFFIX
105 #define HAVE_TARGET_OBJECT_SUFFIX
107 #define TARGET_OBJECT_SUFFIX ".o"
110 static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
112 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
113 #ifndef LIBRARY_PATH_ENV
114 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
118 #define kill(p,s) raise(s)
121 /* If a stage of compilation returns an exit status >= 1,
122 compilation of that file ceases. */
124 #define MIN_FATAL_STATUS 1
126 /* Flag set by cppspec.c to 1. */
129 /* Flag saying to pass the greatest exit code returned by a sub-process
130 to the calling program. */
131 static int pass_exit_codes;
133 /* Definition of string containing the arguments given to configure. */
134 #include "configargs.h"
136 /* Flag saying to print the directories gcc will search through looking for
137 programs, libraries, etc. */
139 static int print_search_dirs;
141 /* Flag saying to print the full filename of this file
142 as found through our usual search mechanism. */
144 static const char *print_file_name = NULL;
146 /* As print_file_name, but search for executable file. */
148 static const char *print_prog_name = NULL;
150 /* Flag saying to print the relative path we'd use to
151 find libgcc.a given the current compiler flags. */
153 static int print_multi_directory;
155 /* Flag saying to print the relative path we'd use to
156 find OS libraries given the current compiler flags. */
158 static int print_multi_os_directory;
160 /* Flag saying to print the list of subdirectories and
161 compiler flags used to select them in a standard form. */
163 static int print_multi_lib;
165 /* Flag saying to print the command line options understood by gcc and its
168 static int print_help_list;
170 /* Flag indicating whether we should print the command and arguments */
172 static int verbose_flag;
174 /* Flag indicating whether we should ONLY print the command and
175 arguments (like verbose_flag) without executing the command.
176 Displayed arguments are quoted so that the generated command
177 line is suitable for execution. This is intended for use in
178 shell scripts to capture the driver-generated command line. */
179 static int verbose_only_flag;
181 /* Flag indicating to print target specific command line options. */
183 static int target_help_flag;
185 /* Flag indicating whether we should report subprocess execution times
186 (if this is supported by the system - see pexecute.c). */
188 static int report_times;
190 /* Nonzero means place this string before uses of /, so that include
191 and library files can be found in an alternate location. */
193 #ifdef TARGET_SYSTEM_ROOT
194 static const char *target_system_root = TARGET_SYSTEM_ROOT;
196 static const char *target_system_root = 0;
199 /* Nonzero means pass the updated target_system_root to the compiler. */
201 static int target_system_root_changed;
203 /* Nonzero means append this string to target_system_root. */
205 static const char *target_sysroot_suffix = 0;
207 /* Nonzero means append this string to target_system_root for headers. */
209 static const char *target_sysroot_hdrs_suffix = 0;
211 /* Nonzero means write "temp" files in source directory
212 and use the source file's name in them, and don't delete them. */
214 static int save_temps_flag;
216 /* Nonzero means pass multiple source files to the compiler at one time. */
218 static int combine_flag = 0;
220 /* Nonzero means use pipes to communicate between subprocesses.
221 Overridden by either of the above two flags. */
223 static int use_pipes;
225 /* The compiler version. */
227 static const char *compiler_version;
229 /* The target version specified with -V */
231 static const char *const spec_version = DEFAULT_TARGET_VERSION;
233 /* The target machine specified with -b. */
235 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
237 /* Nonzero if cross-compiling.
238 When -b is used, the value comes from the `specs' file. */
241 static const char *cross_compile = "1";
243 static const char *cross_compile = "0";
246 #ifdef MODIFY_TARGET_NAME
248 /* Information on how to alter the target name based on a command-line
249 switch. The only case we support now is simply appending or deleting a
250 string to or from the end of the first part of the configuration name. */
252 static const struct modify_target
254 const char *const sw;
255 const enum add_del {ADD, DELETE} add_del;
256 const char *const str;
258 modify_target[] = MODIFY_TARGET_NAME;
261 /* The number of errors that have occurred; the link phase will not be
262 run if this is nonzero. */
263 static int error_count = 0;
265 /* Greatest exit code of sub-processes that has been encountered up to
267 static int greatest_status = 1;
269 /* This is the obstack which we use to allocate many strings. */
271 static struct obstack obstack;
273 /* This is the obstack to build an environment variable to pass to
274 collect2 that describes all of the relevant switches of what to
275 pass the compiler in building the list of pointers to constructors
278 static struct obstack collect_obstack;
280 /* Forward declaration for prototypes. */
284 static void init_spec (void);
285 static void store_arg (const char *, int, int);
286 static char *load_specs (const char *);
287 static void read_specs (const char *, int);
288 static void set_spec (const char *, const char *);
289 static struct compiler *lookup_compiler (const char *, size_t, const char *);
290 static char *build_search_list (const struct path_prefix *, const char *,
292 static void putenv_from_prefixes (const struct path_prefix *, const char *,
294 static int access_check (const char *, int);
295 static char *find_a_file (const struct path_prefix *, const char *, int, bool);
296 static void add_prefix (struct path_prefix *, const char *, const char *,
298 static void add_sysrooted_prefix (struct path_prefix *, const char *,
299 const char *, int, int, int);
300 static void translate_options (int *, const char *const **);
301 static char *skip_whitespace (char *);
302 static void delete_if_ordinary (const char *);
303 static void delete_temp_files (void);
304 static void delete_failure_queue (void);
305 static void clear_failure_queue (void);
306 static int check_live_switch (int, int);
307 static const char *handle_braces (const char *);
308 static inline bool input_suffix_matches (const char *, const char *);
309 static inline bool switch_matches (const char *, const char *, int);
310 static inline void mark_matching_switches (const char *, const char *, int);
311 static inline void process_marked_switches (void);
312 static const char *process_brace_body (const char *, const char *, const char *, int, int);
313 static const struct spec_function *lookup_spec_function (const char *);
314 static const char *eval_spec_function (const char *, const char *);
315 static const char *handle_spec_function (const char *);
316 static char *save_string (const char *, int);
317 static void set_collect_gcc_options (void);
318 static int do_spec_1 (const char *, int, const char *);
319 static int do_spec_2 (const char *);
320 static void do_option_spec (const char *, const char *);
321 static void do_self_spec (const char *);
322 static const char *find_file (const char *);
323 static int is_directory (const char *, bool);
324 static const char *validate_switches (const char *);
325 static void validate_all_switches (void);
326 static inline void validate_switches_from_spec (const char *);
327 static void give_switch (int, int);
328 static int used_arg (const char *, int);
329 static int default_arg (const char *, int);
330 static void set_multilib_dir (void);
331 static void print_multilib_info (void);
332 static void perror_with_name (const char *);
333 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
334 static void display_help (void);
335 static void add_preprocessor_option (const char *, int);
336 static void add_assembler_option (const char *, int);
337 static void add_linker_option (const char *, int);
338 static void process_command (int, const char **);
339 static int execute (void);
340 static void alloc_args (void);
341 static void clear_args (void);
342 static void fatal_error (int);
343 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
344 static void init_gcc_specs (struct obstack *, const char *, const char *,
347 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
348 static const char *convert_filename (const char *, int, int);
351 static const char *if_exists_spec_function (int, const char **);
352 static const char *if_exists_else_spec_function (int, const char **);
353 static const char *replace_outfile_spec_function (int, const char **);
354 static const char *version_compare_spec_function (int, const char **);
355 static const char *include_spec_function (int, const char **);
357 /* The Specs Language
359 Specs are strings containing lines, each of which (if not blank)
360 is made up of a program name, and arguments separated by spaces.
361 The program name must be exact and start from root, since no path
362 is searched and it is unreliable to depend on the current working directory.
363 Redirection of input or output is not supported; the subprograms must
364 accept filenames saying what files to read and write.
366 In addition, the specs can contain %-sequences to substitute variable text
367 or for conditional text. Here is a table of all defined %-sequences.
368 Note that spaces are not generated automatically around the results of
369 expanding these sequences; therefore, you can concatenate them together
370 or with constant text in a single argument.
372 %% substitute one % into the program name or argument.
373 %i substitute the name of the input file being processed.
374 %b substitute the basename of the input file being processed.
375 This is the substring up to (and not including) the last period
376 and not including the directory.
377 %B same as %b, but include the file suffix (text after the last period).
379 substitute a file name that has suffix SUFFIX and is chosen
380 once per compilation, and mark the argument a la %d. To reduce
381 exposure to denial-of-service attacks, the file name is now
382 chosen in a way that is hard to predict even when previously
383 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
384 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
385 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
386 had been pre-processed. Previously, %g was simply substituted
387 with a file name chosen once per compilation, without regard
388 to any appended suffix (which was therefore treated just like
389 ordinary text), making such attacks more likely to succeed.
391 like %g, but if -pipe is in effect, expands simply to "-".
393 like %g, but if -pipe is in effect, expands to nothing. (We have both
394 %| and %m to accommodate differences between system assemblers; see
395 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
397 like %g, but generates a new temporary file name even if %uSUFFIX
400 substitutes the last file name generated with %uSUFFIX, generating a
401 new one if there is no such last file name. In the absence of any
402 %uSUFFIX, this is just like %gSUFFIX, except they don't share
403 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
404 would involve the generation of two distinct file names, one
405 for each `%g.s' and another for each `%U.s'. Previously, %U was
406 simply substituted with a file name chosen for the previous %u,
407 without regard to any appended suffix.
409 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
410 writable, and if save-temps is off; otherwise, substitute the name
411 of a temporary file, just like %u. This temporary file is not
412 meant for communication between processes, but rather as a junk
415 substitutes .SUFFIX for the suffixes of a matched switch's args when
416 it is subsequently output with %*. SUFFIX is terminated by the next
418 %d marks the argument containing or following the %d as a
419 temporary file name, so that that file will be deleted if CC exits
420 successfully. Unlike %g, this contributes no text to the argument.
421 %w marks the argument containing or following the %w as the
422 "output file" of this compilation. This puts the argument
423 into the sequence of arguments that %o will substitute later.
424 %V indicates that this compilation produces no "output file".
426 like %{...} but mark last argument supplied within
427 as a file to be deleted on failure.
428 %o substitutes the names of all the output files, with spaces
429 automatically placed around them. You should write spaces
430 around the %o as well or the results are undefined.
431 %o is for use in the specs for running the linker.
432 Input files whose names have no recognized suffix are not compiled
433 at all, but they are included among the output files, so they will
435 %O substitutes the suffix for object files. Note that this is
436 handled specially when it immediately follows %g, %u, or %U
437 (with or without a suffix argument) because of the need for
438 those to form complete file names. The handling is such that
439 %O is treated exactly as if it had already been substituted,
440 except that %g, %u, and %U do not currently support additional
441 SUFFIX characters following %O as they would following, for
443 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
444 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
445 and -B options) and -imultilib as necessary.
446 %s current argument is the name of a library or startup file of some sort.
447 Search for that file in a standard list of directories
448 and substitute the full name found.
449 %eSTR Print STR as an error message. STR is terminated by a newline.
450 Use this when inconsistent options are detected.
451 %nSTR Print STR as a notice. STR is terminated by a newline.
452 %x{OPTION} Accumulate an option for %X.
453 %X Output the accumulated linker options specified by compilations.
454 %Y Output the accumulated assembler options specified by compilations.
455 %Z Output the accumulated preprocessor options specified by compilations.
456 %a process ASM_SPEC as a spec.
457 This allows config.h to specify part of the spec for running as.
458 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
459 used here. This can be used to run a post-processor after the
460 assembler has done its job.
461 %D Dump out a -L option for each directory in startfile_prefixes.
462 If multilib_dir is set, extra entries are generated with it affixed.
463 %l process LINK_SPEC as a spec.
464 %L process LIB_SPEC as a spec.
465 %G process LIBGCC_SPEC as a spec.
466 %R Output the concatenation of target_system_root and
467 target_sysroot_suffix.
468 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
469 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
470 %C process CPP_SPEC as a spec.
471 %1 process CC1_SPEC as a spec.
472 %2 process CC1PLUS_SPEC as a spec.
473 %* substitute the variable part of a matched option. (See below.)
474 Note that each comma in the substituted string is replaced by
476 %<S remove all occurrences of -S from the command line.
477 Note - this command is position dependent. % commands in the
478 spec string before this one will see -S, % commands in the
479 spec string after this one will not.
480 %<S* remove all occurrences of all switches beginning with -S from the
483 Call the named function FUNCTION, passing it ARGS. ARGS is
484 first processed as a nested spec string, then split into an
485 argument vector in the usual fashion. The function returns
486 a string which is processed as if it had appeared literally
487 as part of the current spec.
488 %{S} substitutes the -S switch, if that switch was given to CC.
489 If that switch was not specified, this substitutes nothing.
490 Here S is a metasyntactic variable.
491 %{S*} substitutes all the switches specified to CC whose names start
492 with -S. This is used for -o, -I, etc; switches that take
493 arguments. CC considers `-o foo' as being one switch whose
494 name starts with `o'. %{o*} would substitute this text,
495 including the space; thus, two arguments would be generated.
496 %{S*&T*} likewise, but preserve order of S and T options (the order
497 of S and T in the spec is not significant). Can be any number
498 of ampersand-separated variables; for each the wild card is
499 optional. Useful for CPP as %{D*&U*&A*}.
501 %{S:X} substitutes X, if the -S switch was given to CC.
502 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
503 %{S*:X} substitutes X if one or more switches whose names start
504 with -S was given to CC. Normally X is substituted only
505 once, no matter how many such switches appeared. However,
506 if %* appears somewhere in X, then X will be substituted
507 once for each matching switch, with the %* replaced by the
508 part of that switch that matched the '*'.
509 %{.S:X} substitutes X, if processing a file with suffix S.
510 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
512 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
513 combined with !, ., and * as above binding stronger than the OR.
514 If %* appears in X, all of the alternatives must be starred, and
515 only the first matching alternative is substituted.
516 %{S:X; if S was given to CC, substitutes X;
517 T:Y; else if T was given to CC, substitutes Y;
518 :D} else substitutes D. There can be as many clauses as you need.
519 This may be combined with ., !, |, and * as above.
521 %(Spec) processes a specification defined in a specs file as *Spec:
522 %[Spec] as above, but put __ around -D arguments
524 The conditional text X in a %{S:X} or similar construct may contain
525 other nested % constructs or spaces, or even newlines. They are
526 processed as usual, as described above. Trailing white space in X is
527 ignored. White space may also appear anywhere on the left side of the
528 colon in these constructs, except between . or * and the corresponding
531 The -O, -f, -m, and -W switches are handled specifically in these
532 constructs. If another value of -O or the negated form of a -f, -m, or
533 -W switch is found later in the command line, the earlier switch
534 value is ignored, except with {S*} where S is just one letter; this
535 passes all matching options.
537 The character | at the beginning of the predicate text is used to indicate
538 that a command should be piped to the following command, but only if -pipe
541 Note that it is built into CC which switches take arguments and which
542 do not. You might think it would be useful to generalize this to
543 allow each compiler's spec to say which switches take arguments. But
544 this cannot be done in a consistent fashion. CC cannot even decide
545 which input files have been specified without knowing which switches
546 take arguments, and it must know which input files to compile in order
547 to tell which compilers to run.
549 CC also knows implicitly that arguments starting in `-l' are to be
550 treated as compiler output files, and passed to the linker in their
551 proper position among the other output files. */
553 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
555 /* config.h can define ASM_SPEC to provide extra args to the assembler
556 or extra switch-translations. */
561 /* config.h can define ASM_FINAL_SPEC to run a post processor after
562 the assembler has run. */
563 #ifndef ASM_FINAL_SPEC
564 #define ASM_FINAL_SPEC ""
567 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
568 or extra switch-translations. */
573 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
574 or extra switch-translations. */
579 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
580 or extra switch-translations. */
582 #define CC1PLUS_SPEC ""
585 /* config.h can define LINK_SPEC to provide extra args to the linker
586 or extra switch-translations. */
591 /* config.h can define LIB_SPEC to override the default libraries. */
593 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
598 /* XXX: valid only for GNU ld */
599 /* XXX: should exactly match hooks provided by libmudflap.a */
600 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
601 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
602 --wrap=mmap --wrap=munmap --wrap=alloca\
603 } %{fmudflapth: --wrap=pthread_create\
604 }} %{fmudflap|fmudflapth: --wrap=main}"
607 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
610 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
613 #if defined(REAL_LIBGCC_SPEC)
614 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
615 #elif defined(LINK_LIBGCC_SPECIAL_1)
616 /* Have gcc do the search for libgcc.a. */
617 #define LIBGCC_SPEC "libgcc.a%s"
619 #define LIBGCC_SPEC "-lgcc"
623 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
624 #ifndef STARTFILE_SPEC
625 #define STARTFILE_SPEC \
626 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
629 /* config.h can define SWITCHES_NEED_SPACES to control which options
630 require spaces between the option and the argument. */
631 #ifndef SWITCHES_NEED_SPACES
632 #define SWITCHES_NEED_SPACES ""
635 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
637 #define ENDFILE_SPEC ""
641 #define LINKER_NAME "collect2"
644 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
646 #ifndef ASM_DEBUG_SPEC
647 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
648 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
649 # define ASM_DEBUG_SPEC \
650 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
651 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
652 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
654 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
655 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
657 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
658 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
662 #ifndef ASM_DEBUG_SPEC
663 # define ASM_DEBUG_SPEC ""
666 /* Here is the spec for running the linker, after compiling all files. */
668 /* This is overridable by the target in case they need to specify the
669 -lgcc and -lc order specially, yet not require them to override all
670 of LINK_COMMAND_SPEC. */
671 #ifndef LINK_GCC_C_SEQUENCE_SPEC
672 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
675 #ifndef LINK_SSP_SPEC
676 #ifdef TARGET_LIBC_PROVIDES_SSP
677 #define LINK_SSP_SPEC "%{fstack-protector:}"
679 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
683 #ifndef LINK_PIE_SPEC
685 #define LINK_PIE_SPEC "%{pie:-pie} "
687 #define LINK_PIE_SPEC "%{pie:} "
691 /* -u* was put back because both BSD and SysV seem to support it. */
692 /* %{static:} simply prevents an error message if the target machine
693 doesn't handle -static. */
694 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
695 scripts which exist in user specified directories, or in standard
697 #ifndef LINK_COMMAND_SPEC
698 #define LINK_COMMAND_SPEC "\
699 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
700 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
701 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
702 %{static:} %{L*} %(mfwrap) %{fopenmp:%:include(libgomp.spec)%(link_gomp)}\
703 %(link_libgcc) %o %(mflib)\
704 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
705 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
706 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
709 #ifndef LINK_LIBGCC_SPEC
710 /* Generate -L options for startfile prefix list. */
711 # define LINK_LIBGCC_SPEC "%D"
714 #ifndef STARTFILE_PREFIX_SPEC
715 # define STARTFILE_PREFIX_SPEC ""
719 # define SYSROOT_SPEC "--sysroot=%R"
722 #ifndef SYSROOT_SUFFIX_SPEC
723 # define SYSROOT_SUFFIX_SPEC ""
726 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
727 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
730 static const char *asm_debug;
731 static const char *cpp_spec = CPP_SPEC;
732 static const char *cc1_spec = CC1_SPEC;
733 static const char *cc1plus_spec = CC1PLUS_SPEC;
734 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
735 static const char *link_ssp_spec = LINK_SSP_SPEC;
736 static const char *asm_spec = ASM_SPEC;
737 static const char *asm_final_spec = ASM_FINAL_SPEC;
738 static const char *link_spec = LINK_SPEC;
739 static const char *lib_spec = LIB_SPEC;
740 static const char *mfwrap_spec = MFWRAP_SPEC;
741 static const char *mflib_spec = MFLIB_SPEC;
742 static const char *link_gomp_spec = "";
743 static const char *libgcc_spec = LIBGCC_SPEC;
744 static const char *endfile_spec = ENDFILE_SPEC;
745 static const char *startfile_spec = STARTFILE_SPEC;
746 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
747 static const char *linker_name_spec = LINKER_NAME;
748 static const char *link_command_spec = LINK_COMMAND_SPEC;
749 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
750 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
751 static const char *sysroot_spec = SYSROOT_SPEC;
752 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
753 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
755 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
756 There should be no need to override these in target dependent files,
757 but we need to copy them to the specs file so that newer versions
758 of the GCC driver can correctly drive older tool chains with the
759 appropriate -B options. */
761 /* When cpplib handles traditional preprocessing, get rid of this, and
762 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
763 that we default the front end language better. */
764 static const char *trad_capable_cpp =
765 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
767 /* We don't wrap .d files in %W{} since a missing .d file, and
768 therefore no dependency entry, confuses make into thinking a .o
769 file that happens to exist is up-to-date. */
770 static const char *cpp_unique_options =
771 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
772 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
773 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
774 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
775 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
776 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
777 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
778 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
779 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
782 /* This contains cpp options which are common with cc1_options and are passed
783 only when preprocessing only to avoid duplication. We pass the cc1 spec
784 options to the preprocessor so that it the cc1 spec may manipulate
785 options used to set target flags. Those special target flags settings may
786 in turn cause preprocessor symbols to be defined specially. */
787 static const char *cpp_options =
788 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
789 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
790 %{undef} %{save-temps:-fpch-preprocess}";
792 /* This contains cpp options which are not passed when the preprocessor
793 output will be used by another program. */
794 static const char *cpp_debug_options = "%{d*}";
796 /* NB: This is shared amongst all front-ends. */
797 static const char *cc1_options =
798 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
799 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
800 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
801 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
802 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
803 %{Qn:-fno-ident} %{--help:--help}\
804 %{--target-help:--target-help}\
805 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
806 %{fsyntax-only:-o %j} %{-param*}\
807 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
808 %{coverage:-fprofile-arcs -ftest-coverage}";
810 static const char *asm_options =
811 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
813 static const char *invoke_as =
814 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
815 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
817 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
820 /* Some compilers have limits on line lengths, and the multilib_select
821 and/or multilib_matches strings can be very long, so we build them at
823 static struct obstack multilib_obstack;
824 static const char *multilib_select;
825 static const char *multilib_matches;
826 static const char *multilib_defaults;
827 static const char *multilib_exclusions;
829 /* Check whether a particular argument is a default argument. */
831 #ifndef MULTILIB_DEFAULTS
832 #define MULTILIB_DEFAULTS { "" }
835 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
837 #ifndef DRIVER_SELF_SPECS
838 #define DRIVER_SELF_SPECS ""
841 /* Adding -fopenmp should imply pthreads. This is particularly important
842 for targets that use different start files and suchlike. */
843 #ifndef GOMP_SELF_SPECS
844 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
847 static const char *const driver_self_specs[] = {
848 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
851 #ifndef OPTION_DEFAULT_SPECS
852 #define OPTION_DEFAULT_SPECS { "", "" }
861 static const struct default_spec
862 option_default_specs[] = { OPTION_DEFAULT_SPECS };
866 struct user_specs *next;
867 const char *filename;
870 static struct user_specs *user_specs_head, *user_specs_tail;
872 #ifndef SWITCH_TAKES_ARG
873 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
876 #ifndef WORD_SWITCH_TAKES_ARG
877 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
880 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
881 /* This defines which switches stop a full compilation. */
882 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
883 ((CHAR) == 'c' || (CHAR) == 'S')
885 #ifndef SWITCH_CURTAILS_COMPILATION
886 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
887 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
891 /* Record the mapping from file suffixes for compilation specs. */
895 const char *suffix; /* Use this compiler for input files
896 whose names end in this suffix. */
898 const char *spec; /* To use this compiler, run this spec. */
900 const char *cpp_spec; /* If non-NULL, substitute this spec
901 for `%C', rather than the usual
903 const int combinable; /* If nonzero, compiler can deal with
904 multiple source files at once (IMA). */
905 const int needs_preprocessing; /* If nonzero, source files need to
906 be run through a preprocessor. */
909 /* Pointer to a vector of `struct compiler' that gives the spec for
910 compiling a file, based on its suffix.
911 A file that does not end in any of these suffixes will be passed
912 unchanged to the loader and nothing else will be done to it.
914 An entry containing two 0s is used to terminate the vector.
916 If multiple entries match a file, the last matching one is used. */
918 static struct compiler *compilers;
920 /* Number of entries in `compilers', not counting the null terminator. */
922 static int n_compilers;
924 /* The default list of file name suffixes and their compilation specs. */
926 static const struct compiler default_compilers[] =
928 /* Add lists of suffixes of known languages here. If those languages
929 were not present when we built the driver, we will hit these copies
930 and be given a more meaningful error than "file not used since
931 linking is not done". */
932 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
933 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
934 {".mii", "#Objective-C++", 0, 0, 0},
935 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
936 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
937 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
938 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
939 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
940 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
941 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
942 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
943 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
944 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
945 {".r", "#Ratfor", 0, 0, 0},
946 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
947 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
948 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
949 /* Next come the entries for C. */
950 {".c", "@c", 0, 1, 1},
952 /* cc1 has an integrated ISO C preprocessor. We should invoke the
953 external preprocessor if -save-temps is given. */
954 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
956 %{traditional|ftraditional:\
957 %eGNU C no longer supports -traditional without -E}\
959 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
960 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
961 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
963 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
964 cc1 %(cpp_unique_options) %(cc1_options)}}}\
965 %{!fsyntax-only:%(invoke_as)}} \
967 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
968 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
969 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
970 cc1 %(cpp_unique_options) %(cc1_options)}}\
971 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
973 "%{!E:%e-E or -x required when input is from standard input}\
974 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
975 {".h", "@c-header", 0, 0, 0},
977 /* cc1 has an integrated ISO C preprocessor. We should invoke the
978 external preprocessor if -save-temps is given. */
979 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
981 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
982 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
983 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
985 -o %g.s %{!o*:--output-pch=%i.gch}\
986 %W{o*:--output-pch=%*}%V}\
987 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
988 cc1 %(cpp_unique_options) %(cc1_options)\
989 -o %g.s %{!o*:--output-pch=%i.gch}\
990 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
991 {".i", "@cpp-output", 0, 1, 0},
993 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
994 {".s", "@assembler", 0, 1, 0},
996 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
997 {".S", "@assembler-with-cpp", 0, 1, 0},
998 {"@assembler-with-cpp",
999 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1000 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1001 %{E|M|MM:%(cpp_debug_options)}\
1002 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1003 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1005 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1006 %{E|M|MM:%(cpp_debug_options)}\
1007 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1008 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1013 /* Mark end of table. */
1017 /* Number of elements in default_compilers, not counting the terminator. */
1019 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1021 /* A vector of options to give to the linker.
1022 These options are accumulated by %x,
1023 and substituted into the linker command with %X. */
1024 static int n_linker_options;
1025 static char **linker_options;
1027 /* A vector of options to give to the assembler.
1028 These options are accumulated by -Wa,
1029 and substituted into the assembler command with %Y. */
1030 static int n_assembler_options;
1031 static char **assembler_options;
1033 /* A vector of options to give to the preprocessor.
1034 These options are accumulated by -Wp,
1035 and substituted into the preprocessor command with %Z. */
1036 static int n_preprocessor_options;
1037 static char **preprocessor_options;
1039 /* Define how to map long options into short ones. */
1041 /* This structure describes one mapping. */
1044 /* The long option's name. */
1045 const char *const name;
1046 /* The equivalent short option. */
1047 const char *const equivalent;
1048 /* Argument info. A string of flag chars; NULL equals no options.
1049 a => argument required.
1050 o => argument optional.
1051 j => join argument to equivalent, making one word.
1052 * => require other text after NAME as an argument. */
1053 const char *const arg_info;
1056 /* This is the table of mappings. Mappings are tried sequentially
1057 for each option encountered; the first one that matches, wins. */
1059 static const struct option_map option_map[] =
1061 {"--all-warnings", "-Wall", 0},
1062 {"--ansi", "-ansi", 0},
1063 {"--assemble", "-S", 0},
1064 {"--assert", "-A", "a"},
1065 {"--classpath", "-fclasspath=", "aj"},
1066 {"--bootclasspath", "-fbootclasspath=", "aj"},
1067 {"--CLASSPATH", "-fclasspath=", "aj"},
1068 {"--combine", "-combine", 0},
1069 {"--comments", "-C", 0},
1070 {"--comments-in-macros", "-CC", 0},
1071 {"--compile", "-c", 0},
1072 {"--debug", "-g", "oj"},
1073 {"--define-macro", "-D", "aj"},
1074 {"--dependencies", "-M", 0},
1075 {"--dump", "-d", "a"},
1076 {"--dumpbase", "-dumpbase", "a"},
1077 {"--encoding", "-fencoding=", "aj"},
1078 {"--entry", "-e", 0},
1079 {"--extra-warnings", "-W", 0},
1080 {"--extdirs", "-fextdirs=", "aj"},
1081 {"--for-assembler", "-Wa", "a"},
1082 {"--for-linker", "-Xlinker", "a"},
1083 {"--force-link", "-u", "a"},
1084 {"--coverage", "-coverage", 0},
1085 {"--imacros", "-imacros", "a"},
1086 {"--include", "-include", "a"},
1087 {"--include-barrier", "-I-", 0},
1088 {"--include-directory", "-I", "aj"},
1089 {"--include-directory-after", "-idirafter", "a"},
1090 {"--include-prefix", "-iprefix", "a"},
1091 {"--include-with-prefix", "-iwithprefix", "a"},
1092 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1093 {"--include-with-prefix-after", "-iwithprefix", "a"},
1094 {"--language", "-x", "a"},
1095 {"--library-directory", "-L", "a"},
1096 {"--machine", "-m", "aj"},
1097 {"--machine-", "-m", "*j"},
1098 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1099 {"--no-line-commands", "-P", 0},
1100 {"--no-precompiled-includes", "-noprecomp", 0},
1101 {"--no-standard-includes", "-nostdinc", 0},
1102 {"--no-standard-libraries", "-nostdlib", 0},
1103 {"--no-warnings", "-w", 0},
1104 {"--optimize", "-O", "oj"},
1105 {"--output", "-o", "a"},
1106 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1107 {"--param", "--param", "a"},
1108 {"--pass-exit-codes", "-pass-exit-codes", 0},
1109 {"--pedantic", "-pedantic", 0},
1110 {"--pedantic-errors", "-pedantic-errors", 0},
1111 {"--pie", "-pie", 0},
1112 {"--pipe", "-pipe", 0},
1113 {"--prefix", "-B", "a"},
1114 {"--preprocess", "-E", 0},
1115 {"--print-search-dirs", "-print-search-dirs", 0},
1116 {"--print-file-name", "-print-file-name=", "aj"},
1117 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1118 {"--print-missing-file-dependencies", "-MG", 0},
1119 {"--print-multi-lib", "-print-multi-lib", 0},
1120 {"--print-multi-directory", "-print-multi-directory", 0},
1121 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1122 {"--print-prog-name", "-print-prog-name=", "aj"},
1123 {"--profile", "-p", 0},
1124 {"--profile-blocks", "-a", 0},
1125 {"--quiet", "-q", 0},
1126 {"--resource", "-fcompile-resource=", "aj"},
1127 {"--save-temps", "-save-temps", 0},
1128 {"--shared", "-shared", 0},
1129 {"--silent", "-q", 0},
1130 {"--specs", "-specs=", "aj"},
1131 {"--static", "-static", 0},
1132 {"--std", "-std=", "aj"},
1133 {"--symbolic", "-symbolic", 0},
1134 {"--sysroot", "--sysroot=", "aj"},
1135 {"--time", "-time", 0},
1136 {"--trace-includes", "-H", 0},
1137 {"--traditional", "-traditional", 0},
1138 {"--traditional-cpp", "-traditional-cpp", 0},
1139 {"--trigraphs", "-trigraphs", 0},
1140 {"--undefine-macro", "-U", "aj"},
1141 {"--user-dependencies", "-MM", 0},
1142 {"--verbose", "-v", 0},
1143 {"--warn-", "-W", "*j"},
1144 {"--write-dependencies", "-MD", 0},
1145 {"--write-user-dependencies", "-MMD", 0},
1150 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1151 static const struct {
1152 const char *const option_found;
1153 const char *const replacements;
1154 } target_option_translations[] =
1156 TARGET_OPTION_TRANSLATE_TABLE,
1161 /* Translate the options described by *ARGCP and *ARGVP.
1162 Make a new vector and store it back in *ARGVP,
1163 and store its length in *ARGVC. */
1166 translate_options (int *argcp, const char *const **argvp)
1170 const char *const *argv = *argvp;
1171 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1172 const char **newv = xmalloc (newvsize);
1176 newv[newindex++] = argv[i++];
1180 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1184 target_option_translations[tott_idx].option_found;
1187 if (strcmp (target_option_translations[tott_idx].option_found,
1194 for (sp = target_option_translations[tott_idx].replacements;
1201 newvsize += spaces * sizeof (const char *);
1202 newv = xrealloc (newv, newvsize);
1204 sp = target_option_translations[tott_idx].replacements;
1213 newv[newindex++] = np;
1214 while (*np != ' ' && *np)
1225 if (target_option_translations[tott_idx].option_found)
1229 /* Translate -- options. */
1230 if (argv[i][0] == '-' && argv[i][1] == '-')
1233 /* Find a mapping that applies to this option. */
1234 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1236 size_t optlen = strlen (option_map[j].name);
1237 size_t arglen = strlen (argv[i]);
1238 size_t complen = arglen > optlen ? optlen : arglen;
1239 const char *arginfo = option_map[j].arg_info;
1244 if (!strncmp (argv[i], option_map[j].name, complen))
1246 const char *arg = 0;
1248 if (arglen < optlen)
1251 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1252 if (strlen (option_map[k].name) >= arglen
1253 && !strncmp (argv[i], option_map[k].name, arglen))
1255 error ("ambiguous abbreviation %s", argv[i]);
1259 if (k != ARRAY_SIZE (option_map))
1263 if (arglen > optlen)
1265 /* If the option has an argument, accept that. */
1266 if (argv[i][optlen] == '=')
1267 arg = argv[i] + optlen + 1;
1269 /* If this mapping requires extra text at end of name,
1270 accept that as "argument". */
1271 else if (strchr (arginfo, '*') != 0)
1272 arg = argv[i] + optlen;
1274 /* Otherwise, extra text at end means mismatch.
1275 Try other mappings. */
1280 else if (strchr (arginfo, '*') != 0)
1282 error ("incomplete '%s' option", option_map[j].name);
1286 /* Handle arguments. */
1287 if (strchr (arginfo, 'a') != 0)
1293 error ("missing argument to '%s' option",
1294 option_map[j].name);
1301 else if (strchr (arginfo, '*') != 0)
1303 else if (strchr (arginfo, 'o') == 0)
1306 error ("extraneous argument to '%s' option",
1307 option_map[j].name);
1311 /* Store the translation as one argv elt or as two. */
1312 if (arg != 0 && strchr (arginfo, 'j') != 0)
1313 newv[newindex++] = concat (option_map[j].equivalent, arg,
1317 newv[newindex++] = option_map[j].equivalent;
1318 newv[newindex++] = arg;
1321 newv[newindex++] = option_map[j].equivalent;
1329 /* Handle old-fashioned options--just copy them through,
1330 with their arguments. */
1331 else if (argv[i][0] == '-')
1333 const char *p = argv[i] + 1;
1337 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1338 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1339 else if (WORD_SWITCH_TAKES_ARG (p))
1340 nskip += WORD_SWITCH_TAKES_ARG (p);
1341 else if ((c == 'B' || c == 'b' || c == 'x')
1344 else if (! strcmp (p, "Xlinker"))
1346 else if (! strcmp (p, "Xpreprocessor"))
1348 else if (! strcmp (p, "Xassembler"))
1351 /* Watch out for an option at the end of the command line that
1352 is missing arguments, and avoid skipping past the end of the
1354 if (nskip + i > argc)
1359 newv[newindex++] = argv[i++];
1364 /* Ordinary operands, or +e options. */
1365 newv[newindex++] = argv[i++];
1375 skip_whitespace (char *p)
1379 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1380 be considered whitespace. */
1381 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1383 else if (*p == '\n' || *p == ' ' || *p == '\t')
1397 /* Structures to keep track of prefixes to try when looking for files. */
1401 const char *prefix; /* String to prepend to the path. */
1402 struct prefix_list *next; /* Next in linked list. */
1403 int require_machine_suffix; /* Don't use without machine_suffix. */
1404 /* 2 means try both machine_suffix and just_machine_suffix. */
1405 int priority; /* Sort key - priority within list. */
1406 int os_multilib; /* 1 if OS multilib scheme should be used,
1407 0 for GCC multilib scheme. */
1412 struct prefix_list *plist; /* List of prefixes to try */
1413 int max_len; /* Max length of a prefix in PLIST */
1414 const char *name; /* Name of this list (used in config stuff) */
1417 /* List of prefixes to try when looking for executables. */
1419 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1421 /* List of prefixes to try when looking for startup (crt0) files. */
1423 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1425 /* List of prefixes to try when looking for include files. */
1427 static struct path_prefix include_prefixes = { 0, 0, "include" };
1429 /* Suffix to attach to directories searched for commands.
1430 This looks like `MACHINE/VERSION/'. */
1432 static const char *machine_suffix = 0;
1434 /* Suffix to attach to directories searched for commands.
1435 This is just `MACHINE/'. */
1437 static const char *just_machine_suffix = 0;
1439 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1441 static const char *gcc_exec_prefix;
1443 /* Adjusted value of standard_libexec_prefix. */
1445 static const char *gcc_libexec_prefix;
1447 /* Default prefixes to attach to command names. */
1449 #ifndef STANDARD_STARTFILE_PREFIX_1
1450 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1452 #ifndef STANDARD_STARTFILE_PREFIX_2
1453 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1456 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1457 #undef MD_EXEC_PREFIX
1458 #undef MD_STARTFILE_PREFIX
1459 #undef MD_STARTFILE_PREFIX_1
1462 /* If no prefixes defined, use the null string, which will disable them. */
1463 #ifndef MD_EXEC_PREFIX
1464 #define MD_EXEC_PREFIX ""
1466 #ifndef MD_STARTFILE_PREFIX
1467 #define MD_STARTFILE_PREFIX ""
1469 #ifndef MD_STARTFILE_PREFIX_1
1470 #define MD_STARTFILE_PREFIX_1 ""
1473 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1474 static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
1475 static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
1476 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1478 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1479 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1480 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1481 static const char *const standard_startfile_prefix_1
1482 = STANDARD_STARTFILE_PREFIX_1;
1483 static const char *const standard_startfile_prefix_2
1484 = STANDARD_STARTFILE_PREFIX_2;
1486 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1487 static const char *tooldir_prefix;
1489 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1491 static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1493 /* Subdirectory to use for locating libraries. Set by
1494 set_multilib_dir based on the compilation options. */
1496 static const char *multilib_dir;
1498 /* Subdirectory to use for locating libraries in OS conventions. Set by
1499 set_multilib_dir based on the compilation options. */
1501 static const char *multilib_os_dir;
1503 /* Structure to keep track of the specs that have been defined so far.
1504 These are accessed using %(specname) or %[specname] in a compiler
1509 /* The following 2 fields must be first */
1510 /* to allow EXTRA_SPECS to be initialized */
1511 const char *name; /* name of the spec. */
1512 const char *ptr; /* available ptr if no static pointer */
1514 /* The following fields are not initialized */
1515 /* by EXTRA_SPECS */
1516 const char **ptr_spec; /* pointer to the spec itself. */
1517 struct spec_list *next; /* Next spec in linked list. */
1518 int name_len; /* length of the name */
1519 int alloc_p; /* whether string was allocated */
1522 #define INIT_STATIC_SPEC(NAME,PTR) \
1523 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1525 /* List of statically defined specs. */
1526 static struct spec_list static_specs[] =
1528 INIT_STATIC_SPEC ("asm", &asm_spec),
1529 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1530 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1531 INIT_STATIC_SPEC ("asm_options", &asm_options),
1532 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1533 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1534 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1535 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1536 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1537 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1538 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1539 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1540 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1541 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1542 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1543 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1544 INIT_STATIC_SPEC ("link", &link_spec),
1545 INIT_STATIC_SPEC ("lib", &lib_spec),
1546 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1547 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1548 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1549 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1550 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1551 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1552 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1553 INIT_STATIC_SPEC ("version", &compiler_version),
1554 INIT_STATIC_SPEC ("multilib", &multilib_select),
1555 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1556 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1557 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1558 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1559 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1560 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1561 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1562 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1563 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1564 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1565 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1566 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1567 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1568 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1571 #ifdef EXTRA_SPECS /* additional specs needed */
1572 /* Structure to keep track of just the first two args of a spec_list.
1573 That is all that the EXTRA_SPECS macro gives us. */
1576 const char *const name;
1577 const char *const ptr;
1580 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1581 static struct spec_list *extra_specs = (struct spec_list *) 0;
1584 /* List of dynamically allocates specs that have been defined so far. */
1586 static struct spec_list *specs = (struct spec_list *) 0;
1588 /* List of static spec functions. */
1590 static const struct spec_function static_spec_functions[] =
1592 { "if-exists", if_exists_spec_function },
1593 { "if-exists-else", if_exists_else_spec_function },
1594 { "replace-outfile", replace_outfile_spec_function },
1595 { "version-compare", version_compare_spec_function },
1596 { "include", include_spec_function },
1600 static int processing_spec_function;
1602 /* Add appropriate libgcc specs to OBSTACK, taking into account
1603 various permutations of -shared-libgcc, -shared, and such. */
1605 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1607 #ifndef USE_LD_AS_NEEDED
1608 #define USE_LD_AS_NEEDED 0
1612 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1613 const char *static_name, const char *eh_name)
1617 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1618 "%{!static:%{!static-libgcc:"
1619 #if USE_LD_AS_NEEDED
1620 "%{!shared-libgcc:",
1621 static_name, " --as-needed ", shared_name, " --no-as-needed"
1624 shared_name, "%{!shared: ", static_name, "}"
1628 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1629 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1633 "%{shared-libgcc:", shared_name, "}"
1634 "%{!shared-libgcc:", static_name, "}"
1637 "%{shared:", shared_name, "}"
1642 obstack_grow (obstack, buf, strlen (buf));
1645 #endif /* ENABLE_SHARED_LIBGCC */
1647 /* Initialize the specs lookup routines. */
1652 struct spec_list *next = (struct spec_list *) 0;
1653 struct spec_list *sl = (struct spec_list *) 0;
1657 return; /* Already initialized. */
1660 notice ("Using built-in specs.\n");
1663 extra_specs = xcalloc (sizeof (struct spec_list),
1664 ARRAY_SIZE (extra_specs_1));
1666 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1668 sl = &extra_specs[i];
1669 sl->name = extra_specs_1[i].name;
1670 sl->ptr = extra_specs_1[i].ptr;
1672 sl->name_len = strlen (sl->name);
1673 sl->ptr_spec = &sl->ptr;
1678 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1679 on ?: in file-scope variable initializations. */
1680 asm_debug = ASM_DEBUG_SPEC;
1682 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1684 sl = &static_specs[i];
1689 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1690 /* ??? If neither -shared-libgcc nor --static-libgcc was
1691 seen, then we should be making an educated guess. Some proposed
1692 heuristics for ELF include:
1694 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1695 program will be doing dynamic loading, which will likely
1696 need the shared libgcc.
1698 (2) If "-ldl", then it's also a fair bet that we're doing
1701 (3) For each ET_DYN we're linking against (either through -lfoo
1702 or /some/path/foo.so), check to see whether it or one of
1703 its dependencies depends on a shared libgcc.
1707 If the runtime is fixed to look for program headers instead
1708 of calling __register_frame_info at all, for each object,
1709 use the shared libgcc if any EH symbol referenced.
1711 If crtstuff is fixed to not invoke __register_frame_info
1712 automatically, for each object, use the shared libgcc if
1713 any non-empty unwind section found.
1715 Doing any of this probably requires invoking an external program to
1716 do the actual object file scanning. */
1718 const char *p = libgcc_spec;
1721 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1722 when given the proper command line arguments. */
1725 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1727 init_gcc_specs (&obstack,
1729 #ifdef USE_LIBUNWIND_EXCEPTIONS
1735 #ifdef USE_LIBUNWIND_EXCEPTIONS
1736 # ifdef HAVE_LD_STATIC_DYNAMIC
1737 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1747 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1749 /* Ug. We don't know shared library extensions. Hope that
1750 systems that use this form don't do shared libraries. */
1751 init_gcc_specs (&obstack,
1755 #ifdef USE_LIBUNWIND_EXCEPTIONS
1764 obstack_1grow (&obstack, *p);
1765 in_sep = (*p == ' ');
1770 obstack_1grow (&obstack, '\0');
1771 libgcc_spec = XOBFINISH (&obstack, const char *);
1774 #ifdef USE_AS_TRADITIONAL_FORMAT
1775 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1777 static const char tf[] = "--traditional-format ";
1778 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1779 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1780 asm_spec = XOBFINISH (&obstack, const char *);
1784 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1785 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1786 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1787 link_spec = XOBFINISH (&obstack, const char *);
1793 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1794 removed; If the spec starts with a + then SPEC is added to the end of the
1798 set_spec (const char *name, const char *spec)
1800 struct spec_list *sl;
1801 const char *old_spec;
1802 int name_len = strlen (name);
1805 /* If this is the first call, initialize the statically allocated specs. */
1808 struct spec_list *next = (struct spec_list *) 0;
1809 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1811 sl = &static_specs[i];
1818 /* See if the spec already exists. */
1819 for (sl = specs; sl; sl = sl->next)
1820 if (name_len == sl->name_len && !strcmp (sl->name, name))
1825 /* Not found - make it. */
1826 sl = xmalloc (sizeof (struct spec_list));
1827 sl->name = xstrdup (name);
1828 sl->name_len = name_len;
1829 sl->ptr_spec = &sl->ptr;
1831 *(sl->ptr_spec) = "";
1836 old_spec = *(sl->ptr_spec);
1837 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1838 ? concat (old_spec, spec + 1, NULL)
1843 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1846 /* Free the old spec. */
1847 if (old_spec && sl->alloc_p)
1848 free ((void *) old_spec);
1853 /* Accumulate a command (program name and args), and run it. */
1855 /* Vector of pointers to arguments in the current line of specifications. */
1857 static const char **argbuf;
1859 /* Number of elements allocated in argbuf. */
1861 static int argbuf_length;
1863 /* Number of elements in argbuf currently in use (containing args). */
1865 static int argbuf_index;
1867 /* Position in the argbuf array containing the name of the output file
1868 (the value associated with the "-o" flag). */
1870 static int have_o_argbuf_index = 0;
1872 /* Were the options -c or -S passed. */
1873 static int have_c = 0;
1875 /* Was the option -o passed. */
1876 static int have_o = 0;
1878 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1879 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1882 static struct temp_name {
1883 const char *suffix; /* suffix associated with the code. */
1884 int length; /* strlen (suffix). */
1885 int unique; /* Indicates whether %g or %u/%U was used. */
1886 const char *filename; /* associated filename. */
1887 int filename_length; /* strlen (filename). */
1888 struct temp_name *next;
1891 /* Number of commands executed so far. */
1893 static int execution_count;
1895 /* Number of commands that exited with a signal. */
1897 static int signal_count;
1899 /* Name with which this program was invoked. */
1901 static const char *programname;
1903 /* Allocate the argument vector. */
1909 argbuf = xmalloc (argbuf_length * sizeof (const char *));
1912 /* Clear out the vector of arguments (after a command is executed). */
1920 /* Add one argument to the vector at the end.
1921 This is done when a space is seen or at the end of the line.
1922 If DELETE_ALWAYS is nonzero, the arg is a filename
1923 and the file should be deleted eventually.
1924 If DELETE_FAILURE is nonzero, the arg is a filename
1925 and the file should be deleted if this compilation fails. */
1928 store_arg (const char *arg, int delete_always, int delete_failure)
1930 if (argbuf_index + 1 == argbuf_length)
1931 argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
1933 argbuf[argbuf_index++] = arg;
1934 argbuf[argbuf_index] = 0;
1936 if (strcmp (arg, "-o") == 0)
1937 have_o_argbuf_index = argbuf_index;
1938 if (delete_always || delete_failure)
1939 record_temp_file (arg, delete_always, delete_failure);
1942 /* Load specs from a file name named FILENAME, replacing occurrences of
1943 various different types of line-endings, \r\n, \n\r and just \r, with
1947 load_specs (const char *filename)
1951 struct stat statbuf;
1958 notice ("Reading specs from %s\n", filename);
1960 /* Open and stat the file. */
1961 desc = open (filename, O_RDONLY, 0);
1963 pfatal_with_name (filename);
1964 if (stat (filename, &statbuf) < 0)
1965 pfatal_with_name (filename);
1967 /* Read contents of file into BUFFER. */
1968 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1969 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1971 pfatal_with_name (filename);
1972 buffer[readlen] = 0;
1975 specs = xmalloc (readlen + 1);
1977 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1983 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1985 else if (*(buffer_p + 1) == '\n') /* \r\n */
1999 /* Read compilation specs from a file named FILENAME,
2000 replacing the default ones.
2002 A suffix which starts with `*' is a definition for
2003 one of the machine-specific sub-specs. The "suffix" should be
2004 *asm, *cc1, *cpp, *link, *startfile, etc.
2005 The corresponding spec is stored in asm_spec, etc.,
2006 rather than in the `compilers' vector.
2008 Anything invalid in the file is a fatal error. */
2011 read_specs (const char *filename, int main_p)
2016 buffer = load_specs (filename);
2018 /* Scan BUFFER for specs, putting them in the vector. */
2024 char *in, *out, *p1, *p2, *p3;
2026 /* Advance P in BUFFER to the next nonblank nocomment line. */
2027 p = skip_whitespace (p);
2031 /* Is this a special command that starts with '%'? */
2032 /* Don't allow this for the main specs file, since it would
2033 encourage people to overwrite it. */
2034 if (*p == '%' && !main_p)
2037 while (*p && *p != '\n')
2043 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2044 && (p1[sizeof "%include" - 1] == ' '
2045 || p1[sizeof "%include" - 1] == '\t'))
2049 p1 += sizeof ("%include");
2050 while (*p1 == ' ' || *p1 == '\t')
2053 if (*p1++ != '<' || p[-2] != '>')
2054 fatal ("specs %%include syntax malformed after %ld characters",
2055 (long) (p1 - buffer + 1));
2058 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2059 read_specs (new_filename ? new_filename : p1, FALSE);
2062 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2063 && (p1[sizeof "%include_noerr" - 1] == ' '
2064 || p1[sizeof "%include_noerr" - 1] == '\t'))
2068 p1 += sizeof "%include_noerr";
2069 while (*p1 == ' ' || *p1 == '\t')
2072 if (*p1++ != '<' || p[-2] != '>')
2073 fatal ("specs %%include syntax malformed after %ld characters",
2074 (long) (p1 - buffer + 1));
2077 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2079 read_specs (new_filename, FALSE);
2080 else if (verbose_flag)
2081 notice ("could not find specs file %s\n", p1);
2084 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2085 && (p1[sizeof "%rename" - 1] == ' '
2086 || p1[sizeof "%rename" - 1] == '\t'))
2089 struct spec_list *sl;
2090 struct spec_list *newsl;
2092 /* Get original name. */
2093 p1 += sizeof "%rename";
2094 while (*p1 == ' ' || *p1 == '\t')
2097 if (! ISALPHA ((unsigned char) *p1))
2098 fatal ("specs %%rename syntax malformed after %ld characters",
2099 (long) (p1 - buffer));
2102 while (*p2 && !ISSPACE ((unsigned char) *p2))
2105 if (*p2 != ' ' && *p2 != '\t')
2106 fatal ("specs %%rename syntax malformed after %ld characters",
2107 (long) (p2 - buffer));
2111 while (*p2 == ' ' || *p2 == '\t')
2114 if (! ISALPHA ((unsigned char) *p2))
2115 fatal ("specs %%rename syntax malformed after %ld characters",
2116 (long) (p2 - buffer));
2118 /* Get new spec name. */
2120 while (*p3 && !ISSPACE ((unsigned char) *p3))
2124 fatal ("specs %%rename syntax malformed after %ld characters",
2125 (long) (p3 - buffer));
2128 for (sl = specs; sl; sl = sl->next)
2129 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2133 fatal ("specs %s spec was not found to be renamed", p1);
2135 if (strcmp (p1, p2) == 0)
2138 for (newsl = specs; newsl; newsl = newsl->next)
2139 if (strcmp (newsl->name, p2) == 0)
2140 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2145 notice ("rename spec %s to %s\n", p1, p2);
2147 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2151 set_spec (p2, *(sl->ptr_spec));
2153 free ((void *) *(sl->ptr_spec));
2155 *(sl->ptr_spec) = "";
2160 fatal ("specs unknown %% command after %ld characters",
2161 (long) (p1 - buffer));
2164 /* Find the colon that should end the suffix. */
2166 while (*p1 && *p1 != ':' && *p1 != '\n')
2169 /* The colon shouldn't be missing. */
2171 fatal ("specs file malformed after %ld characters",
2172 (long) (p1 - buffer));
2174 /* Skip back over trailing whitespace. */
2176 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2179 /* Copy the suffix to a string. */
2180 suffix = save_string (p, p2 - p);
2181 /* Find the next line. */
2182 p = skip_whitespace (p1 + 1);
2184 fatal ("specs file malformed after %ld characters",
2185 (long) (p - buffer));
2188 /* Find next blank line or end of string. */
2189 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2192 /* Specs end at the blank line and do not include the newline. */
2193 spec = save_string (p, p1 - p);
2196 /* Delete backslash-newline sequences from the spec. */
2201 if (in[0] == '\\' && in[1] == '\n')
2203 else if (in[0] == '#')
2204 while (*in && *in != '\n')
2212 if (suffix[0] == '*')
2214 if (! strcmp (suffix, "*link_command"))
2215 link_command_spec = spec;
2217 set_spec (suffix + 1, spec);
2221 /* Add this pair to the vector. */
2223 = xrealloc (compilers,
2224 (n_compilers + 2) * sizeof (struct compiler));
2226 compilers[n_compilers].suffix = suffix;
2227 compilers[n_compilers].spec = spec;
2229 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2233 link_command_spec = spec;
2236 if (link_command_spec == 0)
2237 fatal ("spec file has no spec for linking");
2240 /* Record the names of temporary files we tell compilers to write,
2241 and delete them at the end of the run. */
2243 /* This is the common prefix we use to make temp file names.
2244 It is chosen once for each run of this program.
2245 It is substituted into a spec by %g or %j.
2246 Thus, all temp file names contain this prefix.
2247 In practice, all temp file names start with this prefix.
2249 This prefix comes from the envvar TMPDIR if it is defined;
2250 otherwise, from the P_tmpdir macro if that is defined;
2251 otherwise, in /usr/tmp or /tmp;
2252 or finally the current directory if all else fails. */
2254 static const char *temp_filename;
2256 /* Length of the prefix. */
2258 static int temp_filename_length;
2260 /* Define the list of temporary files to delete. */
2265 struct temp_file *next;
2268 /* Queue of files to delete on success or failure of compilation. */
2269 static struct temp_file *always_delete_queue;
2270 /* Queue of files to delete on failure of compilation. */
2271 static struct temp_file *failure_delete_queue;
2273 /* Record FILENAME as a file to be deleted automatically.
2274 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2275 otherwise delete it in any case.
2276 FAIL_DELETE nonzero means delete it if a compilation step fails;
2277 otherwise delete it in any case. */
2280 record_temp_file (const char *filename, int always_delete, int fail_delete)
2282 char *const name = xstrdup (filename);
2286 struct temp_file *temp;
2287 for (temp = always_delete_queue; temp; temp = temp->next)
2288 if (! strcmp (name, temp->name))
2291 temp = xmalloc (sizeof (struct temp_file));
2292 temp->next = always_delete_queue;
2294 always_delete_queue = temp;
2301 struct temp_file *temp;
2302 for (temp = failure_delete_queue; temp; temp = temp->next)
2303 if (! strcmp (name, temp->name))
2306 temp = xmalloc (sizeof (struct temp_file));
2307 temp->next = failure_delete_queue;
2309 failure_delete_queue = temp;
2315 /* Delete all the temporary files whose names we previously recorded. */
2317 #ifndef DELETE_IF_ORDINARY
2318 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2321 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2322 if (unlink (NAME) < 0) \
2324 perror_with_name (NAME); \
2329 delete_if_ordinary (const char *name)
2335 printf ("Delete %s? (y or n) ", name);
2339 while ((c = getchar ()) != '\n' && c != EOF)
2342 if (i == 'y' || i == 'Y')
2344 DELETE_IF_ORDINARY (name, st, verbose_flag);
2348 delete_temp_files (void)
2350 struct temp_file *temp;
2352 for (temp = always_delete_queue; temp; temp = temp->next)
2353 delete_if_ordinary (temp->name);
2354 always_delete_queue = 0;
2357 /* Delete all the files to be deleted on error. */
2360 delete_failure_queue (void)
2362 struct temp_file *temp;
2364 for (temp = failure_delete_queue; temp; temp = temp->next)
2365 delete_if_ordinary (temp->name);
2369 clear_failure_queue (void)
2371 failure_delete_queue = 0;
2374 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2376 If DO_MULTI is true iterate over the paths twice, first with multilib
2377 suffix then without, otherwise iterate over the paths once without
2378 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2379 to avoid visiting the same path twice, but we could do better. For
2380 instance, /usr/lib/../lib is considered different from /usr/lib.
2381 At least EXTRA_SPACE chars past the end of the path passed to
2382 CALLBACK are available for use by the callback.
2383 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2385 Returns the value returned by CALLBACK. */
2388 for_each_path (const struct path_prefix *paths,
2391 void *(*callback) (char *, void *),
2392 void *callback_info)
2394 struct prefix_list *pl;
2395 const char *multi_dir = NULL;
2396 const char *multi_os_dir = NULL;
2397 const char *multi_suffix;
2398 const char *just_multi_suffix;
2401 bool skip_multi_dir = false;
2402 bool skip_multi_os_dir = false;
2404 multi_suffix = machine_suffix;
2405 just_multi_suffix = just_machine_suffix;
2406 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2408 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2409 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2410 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2412 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2413 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2417 size_t multi_dir_len = 0;
2418 size_t multi_os_dir_len = 0;
2420 size_t just_suffix_len;
2424 multi_dir_len = strlen (multi_dir);
2426 multi_os_dir_len = strlen (multi_os_dir);
2427 suffix_len = strlen (multi_suffix);
2428 just_suffix_len = strlen (just_multi_suffix);
2432 len = paths->max_len + extra_space + 1;
2433 if (suffix_len > multi_os_dir_len)
2436 len += multi_os_dir_len;
2437 path = xmalloc (len);
2440 for (pl = paths->plist; pl != 0; pl = pl->next)
2442 len = strlen (pl->prefix);
2443 memcpy (path, pl->prefix, len);
2445 /* Look first in MACHINE/VERSION subdirectory. */
2446 if (!skip_multi_dir)
2448 memcpy (path + len, multi_suffix, suffix_len + 1);
2449 ret = callback (path, callback_info);
2454 /* Some paths are tried with just the machine (ie. target)
2455 subdir. This is used for finding as, ld, etc. */
2457 && pl->require_machine_suffix == 2)
2459 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2460 ret = callback (path, callback_info);
2465 /* Now try the base path. */
2466 if (!pl->require_machine_suffix
2467 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2469 const char *this_multi;
2470 size_t this_multi_len;
2472 if (pl->os_multilib)
2474 this_multi = multi_os_dir;
2475 this_multi_len = multi_os_dir_len;
2479 this_multi = multi_dir;
2480 this_multi_len = multi_dir_len;
2484 memcpy (path + len, this_multi, this_multi_len + 1);
2488 ret = callback (path, callback_info);
2496 if (multi_dir == NULL && multi_os_dir == NULL)
2499 /* Run through the paths again, this time without multilibs.
2500 Don't repeat any we have already seen. */
2503 free ((char *) multi_dir);
2505 free ((char *) multi_suffix);
2506 multi_suffix = machine_suffix;
2507 free ((char *) just_multi_suffix);
2508 just_multi_suffix = just_machine_suffix;
2511 skip_multi_dir = true;
2514 free ((char *) multi_os_dir);
2515 multi_os_dir = NULL;
2518 skip_multi_os_dir = true;
2523 free ((char *) multi_dir);
2524 free ((char *) multi_suffix);
2525 free ((char *) just_multi_suffix);
2528 free ((char *) multi_os_dir);
2534 /* Callback for build_search_list. Adds path to obstack being built. */
2536 struct add_to_obstack_info {
2543 add_to_obstack (char *path, void *data)
2545 struct add_to_obstack_info *info = data;
2547 if (info->check_dir && !is_directory (path, false))
2550 if (!info->first_time)
2551 obstack_1grow (info->ob, PATH_SEPARATOR);
2553 obstack_grow (info->ob, path, strlen (path));
2555 info->first_time = false;
2559 /* Build a list of search directories from PATHS.
2560 PREFIX is a string to prepend to the list.
2561 If CHECK_DIR_P is true we ensure the directory exists.
2562 If DO_MULTI is true, multilib paths are output first, then
2564 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2565 It is also used by the --print-search-dirs flag. */
2568 build_search_list (const struct path_prefix *paths, const char *prefix,
2569 bool check_dir, bool do_multi)
2571 struct add_to_obstack_info info;
2573 info.ob = &collect_obstack;
2574 info.check_dir = check_dir;
2575 info.first_time = true;
2577 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2578 obstack_1grow (&collect_obstack, '=');
2580 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2582 obstack_1grow (&collect_obstack, '\0');
2583 return XOBFINISH (&collect_obstack, char *);
2586 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2590 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2593 putenv (build_search_list (paths, env_var, true, do_multi));
2596 /* Check whether NAME can be accessed in MODE. This is like access,
2597 except that it never considers directories to be executable. */
2600 access_check (const char *name, int mode)
2606 if (stat (name, &st) < 0
2607 || S_ISDIR (st.st_mode))
2611 return access (name, mode);
2614 /* Callback for find_a_file. Appends the file name to the directory
2615 path. If the resulting file exists in the right mode, return the
2616 full pathname to the file. */
2618 struct file_at_path_info {
2627 file_at_path (char *path, void *data)
2629 struct file_at_path_info *info = data;
2630 size_t len = strlen (path);
2632 memcpy (path + len, info->name, info->name_len);
2633 len += info->name_len;
2635 /* Some systems have a suffix for executable files.
2636 So try appending that first. */
2637 if (info->suffix_len)
2639 memcpy (path + len, info->suffix, info->suffix_len + 1);
2640 if (access_check (path, info->mode) == 0)
2645 if (access_check (path, info->mode) == 0)
2651 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2652 access to check permissions. If DO_MULTI is true, search multilib
2653 paths then non-multilib paths, otherwise do not search multilib paths.
2654 Return 0 if not found, otherwise return its name, allocated with malloc. */
2657 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2660 struct file_at_path_info info;
2662 #ifdef DEFAULT_ASSEMBLER
2663 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2664 return xstrdup (DEFAULT_ASSEMBLER);
2667 #ifdef DEFAULT_LINKER
2668 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2669 return xstrdup (DEFAULT_LINKER);
2672 /* Determine the filename to execute (special case for absolute paths). */
2674 if (IS_ABSOLUTE_PATH (name))
2676 if (access (name, mode) == 0)
2677 return xstrdup (name);
2683 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2684 info.name_len = strlen (info.name);
2685 info.suffix_len = strlen (info.suffix);
2688 return for_each_path (pprefix, do_multi, info.name_len + info.suffix_len,
2689 file_at_path, &info);
2692 /* Ranking of prefixes in the sort list. -B prefixes are put before
2695 enum path_prefix_priority
2697 PREFIX_PRIORITY_B_OPT,
2698 PREFIX_PRIORITY_LAST
2701 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2702 order according to PRIORITY. Within each PRIORITY, new entries are
2705 If WARN is nonzero, we will warn if no file is found
2706 through this prefix. WARN should point to an int
2707 which will be set to 1 if this entry is used.
2709 COMPONENT is the value to be passed to update_path.
2711 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2712 the complete value of machine_suffix.
2713 2 means try both machine_suffix and just_machine_suffix. */
2716 add_prefix (struct path_prefix *pprefix, const char *prefix,
2717 const char *component, /* enum prefix_priority */ int priority,
2718 int require_machine_suffix, int os_multilib)
2720 struct prefix_list *pl, **prev;
2723 for (prev = &pprefix->plist;
2724 (*prev) != NULL && (*prev)->priority <= priority;
2725 prev = &(*prev)->next)
2728 /* Keep track of the longest prefix. */
2730 prefix = update_path (prefix, component);
2731 len = strlen (prefix);
2732 if (len > pprefix->max_len)
2733 pprefix->max_len = len;
2735 pl = xmalloc (sizeof (struct prefix_list));
2736 pl->prefix = prefix;
2737 pl->require_machine_suffix = require_machine_suffix;
2738 pl->priority = priority;
2739 pl->os_multilib = os_multilib;
2741 /* Insert after PREV. */
2746 /* Same as add_prefix, but prepending target_system_root to prefix. */
2748 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2749 const char *component,
2750 /* enum prefix_priority */ int priority,
2751 int require_machine_suffix, int os_multilib)
2753 if (!IS_ABSOLUTE_PATH (prefix))
2754 fatal ("system path '%s' is not absolute", prefix);
2756 if (target_system_root)
2758 if (target_sysroot_suffix)
2759 prefix = concat (target_sysroot_suffix, prefix, NULL);
2760 prefix = concat (target_system_root, prefix, NULL);
2762 /* We have to override this because GCC's notion of sysroot
2763 moves along with GCC. */
2767 add_prefix (pprefix, prefix, component, priority,
2768 require_machine_suffix, os_multilib);
2771 /* Execute the command specified by the arguments on the current line of spec.
2772 When using pipes, this includes several piped-together commands
2773 with `|' between them.
2775 Return 0 if successful, -1 if failed. */
2781 int n_commands; /* # of command. */
2783 struct pex_obj *pex;
2786 const char *prog; /* program name. */
2787 const char **argv; /* vector of args. */
2790 struct command *commands; /* each command buffer with above info. */
2792 gcc_assert (!processing_spec_function);
2794 /* Count # of piped commands. */
2795 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2796 if (strcmp (argbuf[i], "|") == 0)
2799 /* Get storage for each command. */
2800 commands = alloca (n_commands * sizeof (struct command));
2802 /* Split argbuf into its separate piped processes,
2803 and record info about each one.
2804 Also search for the programs that are to be run. */
2806 commands[0].prog = argbuf[0]; /* first command. */
2807 commands[0].argv = &argbuf[0];
2808 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2811 commands[0].argv[0] = string;
2813 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2814 if (strcmp (argbuf[i], "|") == 0)
2815 { /* each command. */
2816 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2817 fatal ("-pipe not supported");
2819 argbuf[i] = 0; /* termination of command args. */
2820 commands[n_commands].prog = argbuf[i + 1];
2821 commands[n_commands].argv = &argbuf[i + 1];
2822 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2825 commands[n_commands].argv[0] = string;
2829 argbuf[argbuf_index] = 0;
2831 /* If -v, print what we are about to do, and maybe query. */
2835 /* For help listings, put a blank line between sub-processes. */
2836 if (print_help_list)
2837 fputc ('\n', stderr);
2839 /* Print each piped command as a separate line. */
2840 for (i = 0; i < n_commands; i++)
2842 const char *const *j;
2844 if (verbose_only_flag)
2846 for (j = commands[i].argv; *j; j++)
2849 fprintf (stderr, " \"");
2850 for (p = *j; *p; ++p)
2852 if (*p == '"' || *p == '\\' || *p == '$')
2853 fputc ('\\', stderr);
2856 fputc ('"', stderr);
2860 for (j = commands[i].argv; *j; j++)
2861 fprintf (stderr, " %s", *j);
2863 /* Print a pipe symbol after all but the last command. */
2864 if (i + 1 != n_commands)
2865 fprintf (stderr, " |");
2866 fprintf (stderr, "\n");
2869 if (verbose_only_flag != 0)
2871 /* verbose_only_flag should act as if the spec was
2872 executed, so increment execution_count before
2873 returning. This prevents spurious warnings about
2874 unused linker input files, etc. */
2879 notice ("\nGo ahead? (y or n) ");
2883 while (getchar () != '\n')
2886 if (i != 'y' && i != 'Y')
2891 #ifdef ENABLE_VALGRIND_CHECKING
2892 /* Run the each command through valgrind. To simplify prepending the
2893 path to valgrind and the option "-q" (for quiet operation unless
2894 something triggers), we allocate a separate argv array. */
2896 for (i = 0; i < n_commands; i++)
2902 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
2905 argv = alloca ((argc + 3) * sizeof (char *));
2907 argv[0] = VALGRIND_PATH;
2909 for (j = 2; j < argc + 2; j++)
2910 argv[j] = commands[i].argv[j - 2];
2913 commands[i].argv = argv;
2914 commands[i].prog = argv[0];
2918 /* Run each piped subprocess. */
2920 pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
2921 programname, temp_filename);
2923 pfatal_with_name (_("pex_init failed"));
2925 for (i = 0; i < n_commands; i++)
2929 const char *string = commands[i].argv[0];
2931 errmsg = pex_run (pex,
2932 ((i + 1 == n_commands ? PEX_LAST : 0)
2933 | (string == commands[i].prog ? PEX_SEARCH : 0)),
2934 string, (char * const *) commands[i].argv,
2943 pfatal_with_name (errmsg);
2947 if (string != commands[i].prog)
2948 free ((void *) string);
2953 /* Wait for all the subprocesses to finish. */
2957 struct pex_time *times = NULL;
2960 statuses = alloca (n_commands * sizeof (int));
2961 if (!pex_get_status (pex, n_commands, statuses))
2962 pfatal_with_name (_("failed to get exit status"));
2966 times = alloca (n_commands * sizeof (struct pex_time));
2967 if (!pex_get_times (pex, n_commands, times))
2968 pfatal_with_name (_("failed to get process times"));
2973 for (i = 0; i < n_commands; ++i)
2975 int status = statuses[i];
2977 if (WIFSIGNALED (status))
2980 /* SIGPIPE is a special case. It happens in -pipe mode
2981 when the compiler dies before the preprocessor is done,
2982 or the assembler dies before the compiler is done.
2983 There's generally been an error already, and this is
2984 just fallout. So don't generate another error unless
2985 we would otherwise have succeeded. */
2986 if (WTERMSIG (status) == SIGPIPE
2987 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2995 Internal error: %s (program %s)\n\
2996 Please submit a full bug report.\n\
2997 See %s for instructions.",
2998 strsignal (WTERMSIG (status)), commands[i].prog,
3001 else if (WIFEXITED (status)
3002 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3004 if (WEXITSTATUS (status) > greatest_status)
3005 greatest_status = WEXITSTATUS (status);
3011 struct pex_time *pt = ×[i];
3014 ut = ((double) pt->user_seconds
3015 + (double) pt->user_microseconds / 1.0e6);
3016 st = ((double) pt->system_seconds
3017 + (double) pt->system_microseconds / 1.0e6);
3020 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3028 /* Find all the switches given to us
3029 and make a vector describing them.
3030 The elements of the vector are strings, one per switch given.
3031 If a switch uses following arguments, then the `part1' field
3032 is the switch itself and the `args' field
3033 is a null-terminated vector containing the following arguments.
3034 The `live_cond' field is:
3036 1 if the switch is true in a conditional spec,
3037 -1 if false (overridden by a later switch)
3038 -2 if this switch should be ignored (used in %<S)
3039 The `validated' field is nonzero if any spec has looked at this switch;
3040 if it remains zero at the end of the run, it must be meaningless. */
3043 #define SWITCH_FALSE -1
3044 #define SWITCH_IGNORE -2
3045 #define SWITCH_LIVE 1
3052 unsigned char validated;
3053 unsigned char ordering;
3056 static struct switchstr *switches;
3058 static int n_switches;
3060 /* Language is one of three things:
3062 1) The name of a real programming language.
3063 2) NULL, indicating that no one has figured out
3065 3) '*', indicating that the file should be passed
3070 const char *language;
3071 struct compiler *incompiler;
3076 /* Also a vector of input files specified. */
3078 static struct infile *infiles;
3082 /* True if multiple input files are being compiled to a single
3085 static bool combine_inputs;
3087 /* This counts the number of libraries added by lang_specific_driver, so that
3088 we can tell if there were any user supplied any files or libraries. */
3090 static int added_libraries;
3092 /* And a vector of corresponding output files is made up later. */
3094 const char **outfiles;
3096 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3098 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3099 is true if we should look for an executable suffix. DO_OBJ
3100 is true if we should look for an object suffix. */
3103 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3104 int do_obj ATTRIBUTE_UNUSED)
3106 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3114 len = strlen (name);
3116 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3117 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3118 if (do_obj && len > 2
3119 && name[len - 2] == '.'
3120 && name[len - 1] == 'o')
3122 obstack_grow (&obstack, name, len - 2);
3123 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3124 name = XOBFINISH (&obstack, const char *);
3128 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3129 /* If there is no filetype, make it the executable suffix (which includes
3130 the "."). But don't get confused if we have just "-o". */
3131 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3134 for (i = len - 1; i >= 0; i--)
3135 if (IS_DIR_SEPARATOR (name[i]))
3138 for (i++; i < len; i++)
3142 obstack_grow (&obstack, name, len);
3143 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3144 strlen (TARGET_EXECUTABLE_SUFFIX));
3145 name = XOBFINISH (&obstack, const char *);
3152 /* Display the command line switches accepted by gcc. */
3156 printf (_("Usage: %s [options] file...\n"), programname);
3157 fputs (_("Options:\n"), stdout);
3159 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3160 fputs (_(" --help Display this information\n"), stdout);
3161 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3163 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3164 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3165 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3166 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3167 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3168 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3169 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3170 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3171 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3173 -print-multi-lib Display the mapping between command line options and\n\
3174 multiple library search directories\n"), stdout);
3175 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3176 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3177 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3178 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3179 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3180 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3181 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3182 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3183 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3184 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3185 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3186 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3187 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3189 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3190 for headers and libraries\n"), stdout);
3191 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3192 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3193 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3194 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3195 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3196 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3197 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3198 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3199 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3201 -x <language> Specify the language of the following input files\n\
3202 Permissible languages include: c c++ assembler none\n\
3203 'none' means revert to the default behavior of\n\
3204 guessing the language based on the file's extension\n\
3208 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3209 passed on to the various sub-processes invoked by %s. In order to pass\n\
3210 other options on to these processes the -W<letter> options must be used.\n\
3213 /* The rest of the options are displayed by invocations of the various
3218 add_preprocessor_option (const char *option, int len)
3220 n_preprocessor_options++;
3222 if (! preprocessor_options)
3223 preprocessor_options = xmalloc (n_preprocessor_options * sizeof (char *));
3225 preprocessor_options = xrealloc (preprocessor_options,
3226 n_preprocessor_options * sizeof (char *));
3228 preprocessor_options [n_preprocessor_options - 1] =
3229 save_string (option, len);
3233 add_assembler_option (const char *option, int len)
3235 n_assembler_options++;
3237 if (! assembler_options)
3238 assembler_options = xmalloc (n_assembler_options * sizeof (char *));
3240 assembler_options = xrealloc (assembler_options,
3241 n_assembler_options * sizeof (char *));
3243 assembler_options [n_assembler_options - 1] = save_string (option, len);
3247 add_linker_option (const char *option, int len)
3251 if (! linker_options)
3252 linker_options = xmalloc (n_linker_options * sizeof (char *));
3254 linker_options = xrealloc (linker_options,
3255 n_linker_options * sizeof (char *));
3257 linker_options [n_linker_options - 1] = save_string (option, len);
3260 /* Create the vector `switches' and its contents.
3261 Store its length in `n_switches'. */
3264 process_command (int argc, const char **argv)
3269 const char *spec_lang = 0;
3270 int last_language_n_infiles;
3271 int lang_n_infiles = 0;
3272 #ifdef MODIFY_TARGET_NAME
3273 int is_modify_target_name;
3277 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3281 added_libraries = 0;
3283 /* Figure compiler version from version string. */
3285 compiler_version = temp1 = xstrdup (version_string);
3287 for (; *temp1; ++temp1)
3296 /* If there is a -V or -b option (or both), process it now, before
3297 trying to interpret the rest of the command line.
3298 Use heuristic that all configuration names must have at least
3299 one dash '-'. This allows us to pass options starting with -b. */
3300 if (argc > 1 && argv[1][0] == '-'
3301 && (argv[1][1] == 'V' ||
3302 ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
3304 const char *new_version = DEFAULT_TARGET_VERSION;
3305 const char *new_machine = DEFAULT_TARGET_MACHINE;
3306 const char *progname = argv[0];
3311 while (argc > 1 && argv[1][0] == '-'
3312 && (argv[1][1] == 'V' ||
3313 ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
3315 char opt = argv[1][1];
3317 if (argv[1][2] != '\0')
3330 fatal ("'-%c' option must have argument", opt);
3337 for (baselen = strlen (progname); baselen > 0; baselen--)
3338 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3340 new_argv0 = xmemdup (progname, baselen,
3341 baselen + concat_length (new_version, new_machine,
3342 "-gcc-", NULL) + 1);
3343 strcpy (new_argv0 + baselen, new_machine);
3344 strcat (new_argv0, "-gcc-");
3345 strcat (new_argv0, new_version);
3347 new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
3348 (argc + 1) * sizeof (argv[0]));
3349 new_argv[0] = new_argv0;
3351 execvp (new_argv0, new_argv);
3352 fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
3355 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3356 see if we can create it from the pathname specified in argv[0]. */
3358 gcc_libexec_prefix = standard_libexec_prefix;
3360 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3361 if (!gcc_exec_prefix)
3363 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3364 standard_exec_prefix);
3365 gcc_libexec_prefix = make_relative_prefix (argv[0],
3366 standard_bindir_prefix,
3367 standard_libexec_prefix);
3368 if (gcc_exec_prefix)
3369 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3372 gcc_libexec_prefix = make_relative_prefix (gcc_exec_prefix,
3373 standard_exec_prefix,
3374 standard_libexec_prefix);
3378 if (gcc_exec_prefix)
3380 int len = strlen (gcc_exec_prefix);
3382 if (len > (int) sizeof ("/lib/gcc/") - 1
3383 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3385 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3386 if (IS_DIR_SEPARATOR (*temp)
3387 && strncmp (temp + 1, "lib", 3) == 0
3388 && IS_DIR_SEPARATOR (temp[4])
3389 && strncmp (temp + 5, "gcc", 3) == 0)
3390 len -= sizeof ("/lib/gcc/") - 1;
3393 set_std_prefix (gcc_exec_prefix, len);
3394 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3395 PREFIX_PRIORITY_LAST, 0, 0);
3396 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3397 PREFIX_PRIORITY_LAST, 0, 0);
3400 /* COMPILER_PATH and LIBRARY_PATH have values
3401 that are lists of directory names with colons. */
3403 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3406 const char *startp, *endp;
3407 char *nstore = alloca (strlen (temp) + 3);
3409 startp = endp = temp;
3412 if (*endp == PATH_SEPARATOR || *endp == 0)
3414 strncpy (nstore, startp, endp - startp);
3416 strcpy (nstore, concat (".", dir_separator_str, NULL));
3417 else if (!IS_DIR_SEPARATOR (endp[-1]))
3419 nstore[endp - startp] = DIR_SEPARATOR;
3420 nstore[endp - startp + 1] = 0;
3423 nstore[endp - startp] = 0;
3424 add_prefix (&exec_prefixes, nstore, 0,
3425 PREFIX_PRIORITY_LAST, 0, 0);
3426 add_prefix (&include_prefixes, nstore, 0,
3427 PREFIX_PRIORITY_LAST, 0, 0);
3430 endp = startp = endp + 1;
3437 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3438 if (temp && *cross_compile == '0')
3440 const char *startp, *endp;
3441 char *nstore = alloca (strlen (temp) + 3);
3443 startp = endp = temp;
3446 if (*endp == PATH_SEPARATOR || *endp == 0)
3448 strncpy (nstore, startp, endp - startp);
3450 strcpy (nstore, concat (".", dir_separator_str, NULL));
3451 else if (!IS_DIR_SEPARATOR (endp[-1]))
3453 nstore[endp - startp] = DIR_SEPARATOR;
3454 nstore[endp - startp + 1] = 0;
3457 nstore[endp - startp] = 0;
3458 add_prefix (&startfile_prefixes, nstore, NULL,
3459 PREFIX_PRIORITY_LAST, 0, 1);
3462 endp = startp = endp + 1;
3469 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3470 GET_ENVIRONMENT (temp, "LPATH");
3471 if (temp && *cross_compile == '0')
3473 const char *startp, *endp;
3474 char *nstore = alloca (strlen (temp) + 3);
3476 startp = endp = temp;
3479 if (*endp == PATH_SEPARATOR || *endp == 0)
3481 strncpy (nstore, startp, endp - startp);
3483 strcpy (nstore, concat (".", dir_separator_str, NULL));
3484 else if (!IS_DIR_SEPARATOR (endp[-1]))
3486 nstore[endp - startp] = DIR_SEPARATOR;
3487 nstore[endp - startp + 1] = 0;
3490 nstore[endp - startp] = 0;
3491 add_prefix (&startfile_prefixes, nstore, NULL,
3492 PREFIX_PRIORITY_LAST, 0, 1);
3495 endp = startp = endp + 1;
3502 /* Convert new-style -- options to old-style. */
3503 translate_options (&argc, (const char *const **) &argv);
3505 /* Do language-specific adjustment/addition of flags. */
3506 lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
3508 /* Scan argv twice. Here, the first time, just count how many switches
3509 there will be in their vector, and how many input files in theirs.
3510 Here we also parse the switches that cc itself uses (e.g. -v). */
3512 for (i = 1; i < argc; i++)
3514 if (! strcmp (argv[i], "-dumpspecs"))
3516 struct spec_list *sl;
3518 for (sl = specs; sl; sl = sl->next)
3519 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3520 if (link_command_spec)
3521 printf ("*link_command:\n%s\n\n", link_command_spec);
3524 else if (! strcmp (argv[i], "-dumpversion"))
3526 printf ("%s\n", spec_version);
3529 else if (! strcmp (argv[i], "-dumpmachine"))
3531 printf ("%s\n", spec_machine);
3534 else if (strcmp (argv[i], "-fversion") == 0)
3536 /* translate_options () has turned --version into -fversion. */
3537 printf (_("%s (GCC) %s\n"), programname, version_string);
3538 printf ("Copyright %s 2006 Free Software Foundation, Inc.\n",
3540 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3541 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3545 else if (strcmp (argv[i], "-fhelp") == 0)
3547 /* translate_options () has turned --help into -fhelp. */
3548 print_help_list = 1;
3550 /* We will be passing a dummy file on to the sub-processes. */
3554 /* CPP driver cannot obtain switch from cc1_options. */
3556 add_preprocessor_option ("--help", 6);
3557 add_assembler_option ("--help", 6);
3558 add_linker_option ("--help", 6);
3560 else if (strcmp (argv[i], "-ftarget-help") == 0)
3562 /* translate_options() has turned --target-help into -ftarget-help. */
3563 target_help_flag = 1;
3565 /* We will be passing a dummy file on to the sub-processes. */
3569 /* CPP driver cannot obtain switch from cc1_options. */
3571 add_preprocessor_option ("--target-help", 13);
3572 add_assembler_option ("--target-help", 13);
3573 add_linker_option ("--target-help", 13);
3575 else if (! strcmp (argv[i], "-pass-exit-codes"))
3577 pass_exit_codes = 1;
3580 else if (! strcmp (argv[i], "-print-search-dirs"))
3581 print_search_dirs = 1;
3582 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3583 print_file_name = "libgcc.a";
3584 else if (! strncmp (argv[i], "-print-file-name=", 17))
3585 print_file_name = argv[i] + 17;
3586 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3587 print_prog_name = argv[i] + 17;
3588 else if (! strcmp (argv[i], "-print-multi-lib"))
3589 print_multi_lib = 1;
3590 else if (! strcmp (argv[i], "-print-multi-directory"))
3591 print_multi_directory = 1;
3592 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3593 print_multi_os_directory = 1;
3594 else if (! strncmp (argv[i], "-Wa,", 4))
3597 /* Pass the rest of this option to the assembler. */
3599 /* Split the argument at commas. */
3601 for (j = 4; argv[i][j]; j++)
3602 if (argv[i][j] == ',')
3604 add_assembler_option (argv[i] + prev, j - prev);
3608 /* Record the part after the last comma. */
3609 add_assembler_option (argv[i] + prev, j - prev);
3611 else if (! strncmp (argv[i], "-Wp,", 4))
3614 /* Pass the rest of this option to the preprocessor. */
3616 /* Split the argument at commas. */
3618 for (j = 4; argv[i][j]; j++)
3619 if (argv[i][j] == ',')
3621 add_preprocessor_option (argv[i] + prev, j - prev);
3625 /* Record the part after the last comma. */
3626 add_preprocessor_option (argv[i] + prev, j - prev);
3628 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3629 /* The +e options to the C++ front-end. */
3631 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3634 /* Split the argument at commas. */
3635 for (j = 3; argv[i][j]; j++)
3636 n_infiles += (argv[i][j] == ',');
3638 else if (strcmp (argv[i], "-Xlinker") == 0)
3641 fatal ("argument to '-Xlinker' is missing");
3646 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3649 fatal ("argument to '-Xpreprocessor' is missing");
3651 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3653 else if (strcmp (argv[i], "-Xassembler") == 0)
3656 fatal ("argument to '-Xassembler' is missing");
3658 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3660 else if (strcmp (argv[i], "-l") == 0)
3663 fatal ("argument to '-l' is missing");
3668 else if (strncmp (argv[i], "-l", 2) == 0)
3670 else if (strcmp (argv[i], "-save-temps") == 0)
3672 save_temps_flag = 1;
3675 else if (strcmp (argv[i], "-combine") == 0)
3680 else if (strcmp (argv[i], "-specs") == 0)
3682 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3684 fatal ("argument to '-specs' is missing");
3686 user->next = (struct user_specs *) 0;
3687 user->filename = argv[i];
3688 if (user_specs_tail)
3689 user_specs_tail->next = user;
3691 user_specs_head = user;
3692 user_specs_tail = user;
3694 else if (strncmp (argv[i], "-specs=", 7) == 0)
3696 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3697 if (strlen (argv[i]) == 7)
3698 fatal ("argument to '-specs=' is missing");
3700 user->next = (struct user_specs *) 0;
3701 user->filename = argv[i] + 7;
3702 if (user_specs_tail)
3703 user_specs_tail->next = user;
3705 user_specs_head = user;
3706 user_specs_tail = user;
3708 else if (strcmp (argv[i], "-time") == 0)
3710 else if (strcmp (argv[i], "-pipe") == 0)
3712 /* -pipe has to go into the switches array as well as
3717 else if (strcmp (argv[i], "-###") == 0)
3719 /* This is similar to -v except that there is no execution
3720 of the commands and the echoed arguments are quoted. It
3721 is intended for use in shell scripts to capture the
3722 driver-generated command line. */
3723 verbose_only_flag++;
3726 else if (argv[i][0] == '-' && argv[i][1] != 0)
3728 const char *p = &argv[i][1];
3734 if (NULL == strchr(argv[i] + 2, '-')) break;
3736 fatal ("'-%c' must come at the start of the command line", c);
3744 if (p[1] == 0 && i + 1 == argc)
3745 fatal ("argument to '-B' is missing");
3751 len = strlen (value);
3753 /* Catch the case where the user has forgotten to append a
3754 directory separator to the path. Note, they may be using
3755 -B to add an executable name prefix, eg "i386-elf-", in
3756 order to distinguish between multiple installations of
3757 GCC in the same directory. Hence we must check to see
3758 if appending a directory separator actually makes a
3759 valid directory name. */
3760 if (! IS_DIR_SEPARATOR (value [len - 1])
3761 && is_directory (value, false))
3763 char *tmp = xmalloc (len + 2);
3764 strcpy (tmp, value);
3765 tmp[len] = DIR_SEPARATOR;
3770 /* As a kludge, if the arg is "[foo/]stageN/", just
3771 add "[foo/]include" to the include prefix. */
3774 && (IS_DIR_SEPARATOR (value[len - 8]))))
3775 && strncmp (value + len - 7, "stage", 5) == 0
3776 && ISDIGIT (value[len - 2])
3777 && (IS_DIR_SEPARATOR (value[len - 1])))
3780 add_prefix (&include_prefixes, "./", NULL,
3781 PREFIX_PRIORITY_B_OPT, 0, 0);
3784 char *string = xmalloc (len - 6);
3785 memcpy (string, value, len - 7);
3786 string[len - 7] = 0;
3787 add_prefix (&include_prefixes, string, NULL,
3788 PREFIX_PRIORITY_B_OPT, 0, 0);
3792 add_prefix (&exec_prefixes, value, NULL,
3793 PREFIX_PRIORITY_B_OPT, 0, 0);
3794 add_prefix (&startfile_prefixes, value, NULL,
3795 PREFIX_PRIORITY_B_OPT, 0, 0);
3796 add_prefix (&include_prefixes, value, NULL,
3797 PREFIX_PRIORITY_B_OPT, 0, 0);
3802 case 'v': /* Print our subcommands and print versions. */
3804 /* If they do anything other than exactly `-v', don't set
3805 verbose_flag; rather, continue on to give the error. */
3823 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3828 /* Forward scan, just in case -S or -c is specified
3835 if (argv[j][0] == '-')
3837 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3843 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3844 j += skip - (argv[j][2] != 0);
3845 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3852 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3854 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3856 argv[i] = convert_filename (argv[i], ! have_c, 0);
3863 #ifdef MODIFY_TARGET_NAME
3864 is_modify_target_name = 0;
3866 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3867 if (! strcmp (argv[i], modify_target[j].sw))
3869 char *new_name = xmalloc (strlen (modify_target[j].str)
3870 + strlen (spec_machine));
3873 int made_addition = 0;
3875 is_modify_target_name = 1;
3876 for (p = spec_machine, q = new_name; *p != 0; )
3878 if (modify_target[j].add_del == DELETE
3879 && (! strncmp (q, modify_target[j].str,
3880 strlen (modify_target[j].str))))
3881 p += strlen (modify_target[j].str);
3882 else if (modify_target[j].add_del == ADD
3883 && ! made_addition && *p == '-')
3885 for (r = modify_target[j].str; *r != 0; )
3893 spec_machine = new_name;
3896 if (is_modify_target_name)
3902 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3903 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3904 else if (WORD_SWITCH_TAKES_ARG (p))
3905 i += WORD_SWITCH_TAKES_ARG (p);
3915 if (save_temps_flag && use_pipes)
3917 /* -save-temps overrides -pipe, so that temp files are produced */
3918 if (save_temps_flag)
3919 error ("warning: -pipe ignored because -save-temps specified");
3923 /* Set up the search paths before we go looking for config files. */
3925 /* These come before the md prefixes so that we will find gcc's subcommands
3926 (such as cpp) rather than those of the host system. */
3927 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3928 as well as trying the machine and the version. */
3930 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
3931 PREFIX_PRIORITY_LAST, 1, 0);
3932 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
3933 PREFIX_PRIORITY_LAST, 2, 0);
3934 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3935 PREFIX_PRIORITY_LAST, 2, 0);
3936 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3937 PREFIX_PRIORITY_LAST, 2, 0);
3938 add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
3939 PREFIX_PRIORITY_LAST, 2, 0);
3942 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3943 PREFIX_PRIORITY_LAST, 1, 0);
3944 add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
3945 PREFIX_PRIORITY_LAST, 1, 0);
3947 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3948 dir_separator_str, NULL);
3950 /* If tooldir is relative, base it on exec_prefixes. A relative
3951 tooldir lets us move the installed tree as a unit.
3953 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3954 directories, so that we can search both the user specified directory
3955 and the standard place. */
3957 if (!IS_ABSOLUTE_PATH (tooldir_prefix))
3959 if (gcc_exec_prefix)
3961 char *gcc_exec_tooldir_prefix
3962 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3963 spec_version, dir_separator_str, tooldir_prefix, NULL);
3965 add_prefix (&exec_prefixes,
3966 concat (gcc_exec_tooldir_prefix, "bin",
3967 dir_separator_str, NULL),
3968 NULL, PREFIX_PRIORITY_LAST, 0, 0);
3969 add_prefix (&startfile_prefixes,
3970 concat (gcc_exec_tooldir_prefix, "lib",
3971 dir_separator_str, NULL),
3972 NULL, PREFIX_PRIORITY_LAST, 0, 1);
3975 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3976 dir_separator_str, spec_version,
3977 dir_separator_str, tooldir_prefix, NULL);
3980 add_prefix (&exec_prefixes,
3981 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3982 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
3983 add_prefix (&startfile_prefixes,
3984 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3985 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
3987 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3988 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3989 then consider it to relocate with the rest of the GCC installation
3990 if GCC_EXEC_PREFIX is set.
3991 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3992 if (target_system_root && gcc_exec_prefix)
3994 char *tmp_prefix = make_relative_prefix (argv[0],
3995 standard_bindir_prefix,
3996 target_system_root);
3997 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
3999 target_system_root = tmp_prefix;
4000 target_system_root_changed = 1;
4005 /* More prefixes are enabled in main, after we read the specs file
4006 and determine whether this is cross-compilation or not. */
4008 /* Then create the space for the vectors and scan again. */
4010 switches = xmalloc ((n_switches + 1) * sizeof (struct switchstr));
4011 infiles = xmalloc ((n_infiles + 1) * sizeof (struct infile));
4014 last_language_n_infiles = -1;
4016 /* This, time, copy the text of each switch and store a pointer
4017 to the copy in the vector of switches.
4018 Store all the infiles in their vector. */
4020 for (i = 1; i < argc; i++)
4022 /* Just skip the switches that were handled by the preceding loop. */
4023 #ifdef MODIFY_TARGET_NAME
4024 is_modify_target_name = 0;
4026 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4027 if (! strcmp (argv[i], modify_target[j].sw))
4028 is_modify_target_name = 1;
4030 if (is_modify_target_name)
4034 if (! strncmp (argv[i], "-Wa,", 4))
4036 else if (! strncmp (argv[i], "-Wp,", 4))
4038 else if (! strcmp (argv[i], "-pass-exit-codes"))
4040 else if (! strcmp (argv[i], "-print-search-dirs"))
4042 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4044 else if (! strncmp (argv[i], "-print-file-name=", 17))
4046 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4048 else if (! strcmp (argv[i], "-print-multi-lib"))
4050 else if (! strcmp (argv[i], "-print-multi-directory"))
4052 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4054 else if (! strcmp (argv[i], "-ftarget-help"))
4056 else if (! strcmp (argv[i], "-fhelp"))
4058 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4060 target_system_root = argv[i] + strlen ("--sysroot=");
4061 target_system_root_changed = 1;
4063 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4065 /* Compensate for the +e options to the C++ front-end;
4066 they're there simply for cfront call-compatibility. We do
4067 some magic in default_compilers to pass them down properly.
4068 Note we deliberately start at the `+' here, to avoid passing
4069 -e0 or -e1 down into the linker. */
4070 switches[n_switches].part1 = &argv[i][0];
4071 switches[n_switches].args = 0;
4072 switches[n_switches].live_cond = SWITCH_OK;
4073 switches[n_switches].validated = 0;
4076 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4079 /* Split the argument at commas. */
4081 for (j = 4; argv[i][j]; j++)
4082 if (argv[i][j] == ',')
4084 infiles[n_infiles].language = "*";
4085 infiles[n_infiles++].name
4086 = save_string (argv[i] + prev, j - prev);
4089 /* Record the part after the last comma. */
4090 infiles[n_infiles].language = "*";
4091 infiles[n_infiles++].name = argv[i] + prev;
4093 else if (strcmp (argv[i], "-Xlinker") == 0)
4095 infiles[n_infiles].language = "*";
4096 infiles[n_infiles++].name = argv[++i];
4098 /* Xassembler and Xpreprocessor were already handled in the first argv
4099 scan, so all we need to do here is ignore them and their argument. */
4100 else if (strcmp (argv[i], "-Xassembler") == 0)
4102 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4104 else if (strcmp (argv[i], "-l") == 0)
4105 { /* POSIX allows separation of -l and the lib arg;
4106 canonicalize by concatenating -l with its arg */
4107 infiles[n_infiles].language = "*";
4108 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4110 else if (strncmp (argv[i], "-l", 2) == 0)
4112 infiles[n_infiles].language = "*";
4113 infiles[n_infiles++].name = argv[i];
4115 else if (strcmp (argv[i], "-specs") == 0)
4117 else if (strncmp (argv[i], "-specs=", 7) == 0)
4119 else if (strcmp (argv[i], "-time") == 0)
4121 else if (strcmp (argv[i], "-###") == 0)
4123 else if (argv[i][0] == '-' && argv[i][1] != 0)
4125 const char *p = &argv[i][1];
4130 if (p[1] == 0 && i + 1 == argc)
4131 fatal ("argument to '-x' is missing");
4133 spec_lang = argv[++i];
4136 if (! strcmp (spec_lang, "none"))
4137 /* Suppress the warning if -xnone comes after the last input
4138 file, because alternate command interfaces like g++ might
4139 find it useful to place -xnone after each input file. */
4142 last_language_n_infiles = n_infiles;
4145 switches[n_switches].part1 = p;
4146 /* Deal with option arguments in separate argv elements. */
4147 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4148 || WORD_SWITCH_TAKES_ARG (p))
4151 int n_args = WORD_SWITCH_TAKES_ARG (p);
4155 /* Count only the option arguments in separate argv elements. */
4156 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4158 if (i + n_args >= argc)
4159 fatal ("argument to '-%s' is missing", p);
4160 switches[n_switches].args
4161 = xmalloc ((n_args + 1) * sizeof(const char *));
4163 switches[n_switches].args[j++] = argv[++i];
4164 /* Null-terminate the vector. */
4165 switches[n_switches].args[j] = 0;
4167 else if (strchr (switches_need_spaces, c))
4169 /* On some systems, ld cannot handle some options without
4170 a space. So split the option from its argument. */
4171 char *part1 = xmalloc (2);
4175 switches[n_switches].part1 = part1;
4176 switches[n_switches].args = xmalloc (2 * sizeof (const char *));
4177 switches[n_switches].args[0] = xstrdup (p+1);
4178 switches[n_switches].args[1] = 0;
4181 switches[n_switches].args = 0;
4183 switches[n_switches].live_cond = SWITCH_OK;
4184 switches[n_switches].validated = 0;
4185 switches[n_switches].ordering = 0;
4186 /* These are always valid, since gcc.c itself understands them. */
4187 if (!strcmp (p, "save-temps")
4188 || !strcmp (p, "static-libgcc")
4189 || !strcmp (p, "shared-libgcc")
4190 || !strcmp (p, "pipe"))
4191 switches[n_switches].validated = 1;
4194 char ch = switches[n_switches].part1[0];
4196 switches[n_switches].validated = 1;
4202 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4203 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4206 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4208 perror_with_name (argv[i]);
4213 infiles[n_infiles].language = spec_lang;
4214 infiles[n_infiles++].name = argv[i];
4219 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4220 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4222 /* Ensure we only invoke each subprocess once. */
4223 if (target_help_flag || print_help_list)
4227 /* Create a dummy input file, so that we can pass --target-help on to
4228 the various sub-processes. */
4229 infiles[0].language = "c";
4230 infiles[0].name = "help-dummy";
4232 if (target_help_flag)
4234 switches[n_switches].part1 = "--target-help";
4235 switches[n_switches].args = 0;
4236 switches[n_switches].live_cond = SWITCH_OK;
4237 switches[n_switches].validated = 0;
4242 if (print_help_list)
4244 switches[n_switches].part1 = "--help";
4245 switches[n_switches].args = 0;
4246 switches[n_switches].live_cond = SWITCH_OK;
4247 switches[n_switches].validated = 0;
4253 switches[n_switches].part1 = 0;
4254 infiles[n_infiles].name = 0;
4257 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4258 and place that in the environment. */
4261 set_collect_gcc_options (void)
4266 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4268 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4269 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4272 for (i = 0; (int) i < n_switches; i++)
4274 const char *const *args;
4277 obstack_grow (&collect_obstack, " ", 1);
4281 /* Ignore elided switches. */
4282 if (switches[i].live_cond == SWITCH_IGNORE)
4285 obstack_grow (&collect_obstack, "'-", 2);
4286 q = switches[i].part1;
4287 while ((p = strchr (q, '\'')))
4289 obstack_grow (&collect_obstack, q, p - q);
4290 obstack_grow (&collect_obstack, "'\\''", 4);
4293 obstack_grow (&collect_obstack, q, strlen (q));
4294 obstack_grow (&collect_obstack, "'", 1);
4296 for (args = switches[i].args; args && *args; args++)
4298 obstack_grow (&collect_obstack, " '", 2);
4300 while ((p = strchr (q, '\'')))
4302 obstack_grow (&collect_obstack, q, p - q);
4303 obstack_grow (&collect_obstack, "'\\''", 4);
4306 obstack_grow (&collect_obstack, q, strlen (q));
4307 obstack_grow (&collect_obstack, "'", 1);
4310 obstack_grow (&collect_obstack, "\0", 1);
4311 putenv (XOBFINISH (&collect_obstack, char *));
4314 /* Process a spec string, accumulating and running commands. */
4316 /* These variables describe the input file name.
4317 input_file_number is the index on outfiles of this file,
4318 so that the output file name can be stored for later use by %o.
4319 input_basename is the start of the part of the input file
4320 sans all directory names, and basename_length is the number
4321 of characters starting there excluding the suffix .c or whatever. */
4323 static const char *input_filename;
4324 static int input_file_number;
4325 size_t input_filename_length;
4326 static int basename_length;
4327 static int suffixed_basename_length;
4328 static const char *input_basename;
4329 static const char *input_suffix;
4330 #ifndef HOST_LACKS_INODE_NUMBERS
4331 static struct stat input_stat;
4333 static int input_stat_set;
4335 /* The compiler used to process the current input file. */
4336 static struct compiler *input_file_compiler;
4338 /* These are variables used within do_spec and do_spec_1. */
4340 /* Nonzero if an arg has been started and not yet terminated
4341 (with space, tab or newline). */
4342 static int arg_going;
4344 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4345 is a temporary file name. */
4346 static int delete_this_arg;
4348 /* Nonzero means %w has been seen; the next arg to be terminated
4349 is the output file name of this compilation. */
4350 static int this_is_output_file;
4352 /* Nonzero means %s has been seen; the next arg to be terminated
4353 is the name of a library file and we should try the standard
4354 search dirs for it. */
4355 static int this_is_library_file;
4357 /* Nonzero means that the input of this command is coming from a pipe. */
4358 static int input_from_pipe;
4360 /* Nonnull means substitute this for any suffix when outputting a switches
4362 static const char *suffix_subst;
4364 /* Process the spec SPEC and run the commands specified therein.
4365 Returns 0 if the spec is successfully processed; -1 if failed. */
4368 do_spec (const char *spec)
4372 value = do_spec_2 (spec);
4374 /* Force out any unfinished command.
4375 If -pipe, this forces out the last command if it ended in `|'. */
4378 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4381 set_collect_gcc_options ();
4383 if (argbuf_index > 0)
4391 do_spec_2 (const char *spec)
4398 delete_this_arg = 0;
4399 this_is_output_file = 0;
4400 this_is_library_file = 0;
4401 input_from_pipe = 0;
4402 suffix_subst = NULL;
4404 result = do_spec_1 (spec, 0, NULL);
4406 /* End any pending argument. */
4409 obstack_1grow (&obstack, 0);
4410 string = XOBFINISH (&obstack, const char *);
4411 if (this_is_library_file)
4412 string = find_file (string);
4413 store_arg (string, delete_this_arg, this_is_output_file);
4414 if (this_is_output_file)
4415 outfiles[input_file_number] = string;
4423 /* Process the given spec string and add any new options to the end
4424 of the switches/n_switches array. */
4427 do_option_spec (const char *name, const char *spec)
4429 unsigned int i, value_count, value_len;
4430 const char *p, *q, *value;
4431 char *tmp_spec, *tmp_spec_p;
4433 if (configure_default_options[0].name == NULL)
4436 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4437 if (strcmp (configure_default_options[i].name, name) == 0)
4439 if (i == ARRAY_SIZE (configure_default_options))
4442 value = configure_default_options[i].value;
4443 value_len = strlen (value);
4445 /* Compute the size of the final spec. */
4448 while ((p = strstr (p, "%(VALUE)")) != NULL)
4454 /* Replace each %(VALUE) by the specified value. */
4455 tmp_spec = alloca (strlen (spec) + 1
4456 + value_count * (value_len - strlen ("%(VALUE)")));
4457 tmp_spec_p = tmp_spec;
4459 while ((p = strstr (q, "%(VALUE)")) != NULL)
4461 memcpy (tmp_spec_p, q, p - q);
4462 tmp_spec_p = tmp_spec_p + (p - q);
4463 memcpy (tmp_spec_p, value, value_len);
4464 tmp_spec_p += value_len;
4465 q = p + strlen ("%(VALUE)");
4467 strcpy (tmp_spec_p, q);
4469 do_self_spec (tmp_spec);
4472 /* Process the given spec string and add any new options to the end
4473 of the switches/n_switches array. */
4476 do_self_spec (const char *spec)
4479 do_spec_1 (" ", 0, NULL);
4481 if (argbuf_index > 0)
4486 n_switches += argbuf_index;
4487 switches = xrealloc (switches,
4488 sizeof (struct switchstr) * (n_switches + 1));
4490 switches[n_switches] = switches[first];
4491 for (i = 0; i < argbuf_index; i++)
4493 struct switchstr *sw;
4495 /* Each switch should start with '-'. */
4496 if (argbuf[i][0] != '-')
4497 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4499 sw = &switches[i + first];
4500 sw->part1 = &argbuf[i][1];
4502 sw->live_cond = SWITCH_OK;
4509 /* Callback for processing %D and %I specs. */
4511 struct spec_path_info {
4516 bool separate_options;
4520 spec_path (char *path, void *data)
4522 struct spec_path_info *info = data;
4526 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
4529 if (info->append_len != 0)
4531 len = strlen (path);
4532 memcpy (path + len, info->append, info->append_len + 1);
4535 if (!is_directory (path, true))
4538 do_spec_1 (info->option, 1, NULL);
4539 if (info->separate_options)
4540 do_spec_1 (" ", 0, NULL);
4542 if (info->append_len == 0)
4544 len = strlen (path);
4545 save = path[len - 1];
4546 if (IS_DIR_SEPARATOR (path[len - 1]))
4547 path[len - 1] = '\0';
4550 do_spec_1 (path, 1, NULL);
4551 do_spec_1 (" ", 0, NULL);
4553 /* Must not damage the original path. */
4554 if (info->append_len == 0)
4555 path[len - 1] = save;
4560 /* Process the sub-spec SPEC as a portion of a larger spec.
4561 This is like processing a whole spec except that we do
4562 not initialize at the beginning and we do not supply a
4563 newline by default at the end.
4564 INSWITCH nonzero means don't process %-sequences in SPEC;
4565 in this case, % is treated as an ordinary character.
4566 This is used while substituting switches.
4567 INSWITCH nonzero also causes SPC not to terminate an argument.
4569 Value is zero unless a line was finished
4570 and the command on that line reported an error. */
4573 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
4575 const char *p = spec;
4582 /* If substituting a switch, treat all chars like letters.
4583 Otherwise, NL, SPC, TAB and % are special. */
4584 switch (inswitch ? 'a' : c)
4587 /* End of line: finish any pending argument,
4588 then run the pending command if one has been started. */
4591 obstack_1grow (&obstack, 0);
4592 string = XOBFINISH (&obstack, const char *);
4593 if (this_is_library_file)
4594 string = find_file (string);
4595 store_arg (string, delete_this_arg, this_is_output_file);
4596 if (this_is_output_file)
4597 outfiles[input_file_number] = string;
4601 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4603 /* A `|' before the newline means use a pipe here,
4604 but only if -pipe was specified.
4605 Otherwise, execute now and don't pass the `|' as an arg. */
4608 input_from_pipe = 1;
4615 set_collect_gcc_options ();
4617 if (argbuf_index > 0)
4623 /* Reinitialize for a new command, and for a new argument. */
4626 delete_this_arg = 0;
4627 this_is_output_file = 0;
4628 this_is_library_file = 0;
4629 input_from_pipe = 0;
4633 /* End any pending argument. */
4636 obstack_1grow (&obstack, 0);
4637 string = XOBFINISH (&obstack, const char *);
4638 if (this_is_library_file)
4639 string = find_file (string);
4640 store_arg (string, delete_this_arg, this_is_output_file);
4641 if (this_is_output_file)
4642 outfiles[input_file_number] = string;
4646 obstack_1grow (&obstack, c);
4652 /* Space or tab ends an argument if one is pending. */
4655 obstack_1grow (&obstack, 0);
4656 string = XOBFINISH (&obstack, const char *);
4657 if (this_is_library_file)
4658 string = find_file (string);
4659 store_arg (string, delete_this_arg, this_is_output_file);
4660 if (this_is_output_file)
4661 outfiles[input_file_number] = string;
4663 /* Reinitialize for a new argument. */
4665 delete_this_arg = 0;
4666 this_is_output_file = 0;
4667 this_is_library_file = 0;
4674 fatal ("spec '%s' invalid", spec);
4677 obstack_grow (&obstack, input_basename, basename_length);
4682 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4687 delete_this_arg = 2;
4690 /* Dump out the directories specified with LIBRARY_PATH,
4691 followed by the absolute directories
4692 that we search for startfiles. */
4695 struct spec_path_info info;
4698 info.append_len = 0;
4699 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4700 /* Used on systems which record the specified -L dirs
4701 and use them to search for dynamic linking.
4702 Relative directories always come from -B,
4703 and it is better not to use them for searching
4704 at run time. In particular, stage1 loses. */
4705 info.omit_relative = true;
4707 info.omit_relative = false;
4709 info.separate_options = false;
4711 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
4716 /* %efoo means report an error with `foo' as error message
4717 and don't execute any more commands for this file. */
4721 while (*p != 0 && *p != '\n')
4723 buf = alloca (p - q + 1);
4724 strncpy (buf, q, p - q);
4731 /* %nfoo means report a notice with `foo' on stderr. */
4735 while (*p != 0 && *p != '\n')
4737 buf = alloca (p - q + 1);
4738 strncpy (buf, q, p - q);
4740 notice ("%s\n", buf);
4750 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4751 defined, and it is not a directory, and it is
4752 writable, use it. Otherwise, treat this like any
4753 other temporary file. */
4755 if ((!save_temps_flag)
4756 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4757 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4759 obstack_grow (&obstack, HOST_BIT_BUCKET,
4760 strlen (HOST_BIT_BUCKET));
4761 delete_this_arg = 0;
4766 goto create_temp_file;
4770 obstack_1grow (&obstack, '-');
4771 delete_this_arg = 0;
4774 /* consume suffix */
4775 while (*p == '.' || ISALNUM ((unsigned char) *p))
4777 if (p[0] == '%' && p[1] == 'O')
4782 goto create_temp_file;
4786 /* consume suffix */
4787 while (*p == '.' || ISALNUM ((unsigned char) *p))
4789 if (p[0] == '%' && p[1] == 'O')
4794 goto create_temp_file;
4800 struct temp_name *t;
4802 const char *suffix = p;
4803 char *saved_suffix = NULL;
4805 while (*p == '.' || ISALNUM ((unsigned char) *p))
4807 suffix_length = p - suffix;
4808 if (p[0] == '%' && p[1] == 'O')
4811 /* We don't support extra suffix characters after %O. */
4812 if (*p == '.' || ISALNUM ((unsigned char) *p))
4813 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
4814 if (suffix_length == 0)
4815 suffix = TARGET_OBJECT_SUFFIX;
4819 = xmalloc (suffix_length
4820 + strlen (TARGET_OBJECT_SUFFIX));
4821 strncpy (saved_suffix, suffix, suffix_length);
4822 strcpy (saved_suffix + suffix_length,
4823 TARGET_OBJECT_SUFFIX);
4825 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4828 /* If the input_filename has the same suffix specified
4829 for the %g, %u, or %U, and -save-temps is specified,
4830 we could end up using that file as an intermediate
4831 thus clobbering the user's source file (.e.g.,
4832 gcc -save-temps foo.s would clobber foo.s with the
4833 output of cpp0). So check for this condition and
4834 generate a temp file as the intermediate. */
4836 if (save_temps_flag)
4838 temp_filename_length = basename_length + suffix_length;
4839 temp_filename = alloca (temp_filename_length + 1);
4840 strncpy ((char *) temp_filename, input_basename, basename_length);
4841 strncpy ((char *) temp_filename + basename_length, suffix,
4843 *((char *) temp_filename + temp_filename_length) = '\0';
4844 if (strcmp (temp_filename, input_filename) != 0)
4846 #ifndef HOST_LACKS_INODE_NUMBERS
4847 struct stat st_temp;
4849 /* Note, set_input() resets input_stat_set to 0. */
4850 if (input_stat_set == 0)
4852 input_stat_set = stat (input_filename, &input_stat);
4853 if (input_stat_set >= 0)
4857 /* If we have the stat for the input_filename
4858 and we can do the stat for the temp_filename
4859 then the they could still refer to the same
4860 file if st_dev/st_ino's are the same. */
4861 if (input_stat_set != 1
4862 || stat (temp_filename, &st_temp) < 0
4863 || input_stat.st_dev != st_temp.st_dev
4864 || input_stat.st_ino != st_temp.st_ino)
4866 /* Just compare canonical pathnames. */
4867 char* input_realname = lrealpath (input_filename);
4868 char* temp_realname = lrealpath (temp_filename);
4869 bool files_differ = strcmp (input_realname, temp_realname);
4870 free (input_realname);
4871 free (temp_realname);
4875 temp_filename = save_string (temp_filename,
4876 temp_filename_length + 1);
4877 obstack_grow (&obstack, temp_filename,
4878 temp_filename_length);
4880 delete_this_arg = 0;
4886 /* See if we already have an association of %g/%u/%U and
4888 for (t = temp_names; t; t = t->next)
4889 if (t->length == suffix_length
4890 && strncmp (t->suffix, suffix, suffix_length) == 0
4891 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
4894 /* Make a new association if needed. %u and %j
4896 if (t == 0 || c == 'u' || c == 'j')
4900 t = xmalloc (sizeof (struct temp_name));
4901 t->next = temp_names;
4904 t->length = suffix_length;
4907 t->suffix = saved_suffix;
4908 saved_suffix = NULL;
4911 t->suffix = save_string (suffix, suffix_length);
4912 t->unique = (c == 'u' || c == 'U' || c == 'j');
4913 temp_filename = make_temp_file (t->suffix);
4914 temp_filename_length = strlen (temp_filename);
4915 t->filename = temp_filename;
4916 t->filename_length = temp_filename_length;
4920 free (saved_suffix);
4922 obstack_grow (&obstack, t->filename, t->filename_length);
4923 delete_this_arg = 1;
4931 for (i = 0; (int) i < n_infiles; i++)
4932 if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
4933 if (infiles[i].incompiler == input_file_compiler)
4935 store_arg (infiles[i].name, 0, 0);
4936 infiles[i].compiled = true;
4941 obstack_grow (&obstack, input_filename, input_filename_length);
4948 struct spec_path_info info;
4952 do_spec_1 ("-imultilib", 1, NULL);
4953 /* Make this a separate argument. */
4954 do_spec_1 (" ", 0, NULL);
4955 do_spec_1 (multilib_dir, 1, NULL);
4956 do_spec_1 (" ", 0, NULL);
4959 if (gcc_exec_prefix)
4961 do_spec_1 ("-iprefix", 1, NULL);
4962 /* Make this a separate argument. */
4963 do_spec_1 (" ", 0, NULL);
4964 do_spec_1 (gcc_exec_prefix, 1, NULL);
4965 do_spec_1 (" ", 0, NULL);
4968 if (target_system_root_changed ||
4969 (target_system_root && target_sysroot_hdrs_suffix))
4971 do_spec_1 ("-isysroot", 1, NULL);
4972 /* Make this a separate argument. */
4973 do_spec_1 (" ", 0, NULL);
4974 do_spec_1 (target_system_root, 1, NULL);
4975 if (target_sysroot_hdrs_suffix)
4976 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
4977 do_spec_1 (" ", 0, NULL);
4980 info.option = "-isystem";
4981 info.append = "include";
4982 info.append_len = strlen (info.append);
4983 info.omit_relative = false;
4984 info.separate_options = true;
4986 for_each_path (&include_prefixes, false, info.append_len,
4993 int max = n_infiles;
4994 max += lang_specific_extra_outfiles;
4996 for (i = 0; i < max; i++)
4998 store_arg (outfiles[i], 0, 0);
5003 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5008 this_is_library_file = 1;
5012 outfiles[input_file_number] = NULL;
5016 this_is_output_file = 1;
5021 int cur_index = argbuf_index;
5022 /* Handle the {...} following the %W. */
5024 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5025 p = handle_braces (p + 1);
5028 /* End any pending argument. */
5031 obstack_1grow (&obstack, 0);
5032 string = XOBFINISH (&obstack, const char *);
5033 if (this_is_library_file)
5034 string = find_file (string);
5035 store_arg (string, delete_this_arg, this_is_output_file);
5036 if (this_is_output_file)
5037 outfiles[input_file_number] = string;
5040 /* If any args were output, mark the last one for deletion
5042 if (argbuf_index != cur_index)
5043 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5047 /* %x{OPTION} records OPTION for %X to output. */
5053 /* Skip past the option value and make a copy. */
5055 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5058 string = save_string (p1 + 1, p - p1 - 2);
5060 /* See if we already recorded this option. */
5061 for (i = 0; i < n_linker_options; i++)
5062 if (! strcmp (string, linker_options[i]))
5068 /* This option is new; add it. */
5069 add_linker_option (string, strlen (string));
5073 /* Dump out the options accumulated previously using %x. */
5075 for (i = 0; i < n_linker_options; i++)
5077 do_spec_1 (linker_options[i], 1, NULL);
5078 /* Make each accumulated option a separate argument. */
5079 do_spec_1 (" ", 0, NULL);
5083 /* Dump out the options accumulated previously using -Wa,. */
5085 for (i = 0; i < n_assembler_options; i++)
5087 do_spec_1 (assembler_options[i], 1, NULL);
5088 /* Make each accumulated option a separate argument. */
5089 do_spec_1 (" ", 0, NULL);
5093 /* Dump out the options accumulated previously using -Wp,. */
5095 for (i = 0; i < n_preprocessor_options; i++)
5097 do_spec_1 (preprocessor_options[i], 1, NULL);
5098 /* Make each accumulated option a separate argument. */
5099 do_spec_1 (" ", 0, NULL);
5103 /* Here are digits and numbers that just process
5104 a certain constant string as a spec. */
5107 value = do_spec_1 (cc1_spec, 0, NULL);
5113 value = do_spec_1 (cc1plus_spec, 0, NULL);
5119 value = do_spec_1 (asm_spec, 0, NULL);
5125 value = do_spec_1 (asm_final_spec, 0, NULL);
5132 const char *const spec
5133 = (input_file_compiler->cpp_spec
5134 ? input_file_compiler->cpp_spec
5136 value = do_spec_1 (spec, 0, NULL);
5143 value = do_spec_1 (endfile_spec, 0, NULL);
5149 value = do_spec_1 (link_spec, 0, NULL);
5155 value = do_spec_1 (lib_spec, 0, NULL);
5161 value = do_spec_1 (libgcc_spec, 0, NULL);
5167 /* We assume there is a directory
5168 separator at the end of this string. */
5169 if (target_system_root)
5171 obstack_grow (&obstack, target_system_root,
5172 strlen (target_system_root));
5173 if (target_sysroot_suffix)
5174 obstack_grow (&obstack, target_sysroot_suffix,
5175 strlen (target_sysroot_suffix));
5180 value = do_spec_1 (startfile_spec, 0, NULL);
5185 /* Here we define characters other than letters and digits. */
5188 p = handle_braces (p);
5194 p = handle_spec_function (p);
5200 obstack_1grow (&obstack, '%');
5207 while (p[len] && p[len] != ' ' && p[len] != '%')
5209 suffix_subst = save_string (p - 1, len + 1);
5214 /* Henceforth ignore the option(s) matching the pattern
5219 int have_wildcard = 0;
5222 while (p[len] && p[len] != ' ' && p[len] != '\t')
5225 if (p[len-1] == '*')
5228 for (i = 0; i < n_switches; i++)
5229 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5230 && (have_wildcard || switches[i].part1[len] == '\0'))
5232 switches[i].live_cond = SWITCH_IGNORE;
5233 switches[i].validated = 1;
5241 if (soft_matched_part)
5243 do_spec_1 (soft_matched_part, 1, NULL);
5244 do_spec_1 (" ", 0, NULL);
5247 /* Catch the case where a spec string contains something like
5248 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5249 hand side of the :. */
5250 error ("spec failure: '%%*' has not been initialized by pattern match");
5253 /* Process a string found as the value of a spec given by name.
5254 This feature allows individual machine descriptions
5255 to add and use their own specs.
5256 %[...] modifies -D options the way %P does;
5257 %(...) uses the spec unmodified. */
5259 error ("warning: use of obsolete %%[ operator in specs");
5262 const char *name = p;
5263 struct spec_list *sl;
5266 /* The string after the S/P is the name of a spec that is to be
5268 while (*p && *p != ')' && *p != ']')
5271 /* See if it's in the list. */
5272 for (len = p - name, sl = specs; sl; sl = sl->next)
5273 if (sl->name_len == len && !strncmp (sl->name, name, len))
5275 name = *(sl->ptr_spec);
5277 notice ("Processing spec %c%s%c, which is '%s'\n",
5278 c, sl->name, (c == '(') ? ')' : ']', name);
5287 value = do_spec_1 (name, 0, NULL);
5293 char *x = alloca (strlen (name) * 2 + 1);
5295 const char *y = name;
5298 /* Copy all of NAME into BUF, but put __ after
5299 every -D and at the end of each arg. */
5302 if (! strncmp (y, "-D", 2))
5313 && (*y == ' ' || *y == '\t' || *y == '='
5314 || *y == '}' || *y == 0))
5327 value = do_spec_1 (buf, 0, NULL);
5333 /* Discard the closing paren or bracket. */
5340 error ("spec failure: unrecognized spec option '%c'", c);
5346 /* Backslash: treat next character as ordinary. */
5351 /* Ordinary character: put it into the current argument. */
5352 obstack_1grow (&obstack, c);
5356 /* End of string. If we are processing a spec function, we need to
5357 end any pending argument. */
5358 if (processing_spec_function && arg_going)
5360 obstack_1grow (&obstack, 0);
5361 string = XOBFINISH (&obstack, const char *);
5362 if (this_is_library_file)
5363 string = find_file (string);
5364 store_arg (string, delete_this_arg, this_is_output_file);
5365 if (this_is_output_file)
5366 outfiles[input_file_number] = string;
5373 /* Look up a spec function. */
5375 static const struct spec_function *
5376 lookup_spec_function (const char *name)
5378 const struct spec_function *sf;
5380 for (sf = static_spec_functions; sf->name != NULL; sf++)
5381 if (strcmp (sf->name, name) == 0)
5387 /* Evaluate a spec function. */
5390 eval_spec_function (const char *func, const char *args)
5392 const struct spec_function *sf;
5393 const char *funcval;
5395 /* Saved spec processing context. */
5396 int save_argbuf_index;
5397 int save_argbuf_length;
5398 const char **save_argbuf;
5401 int save_delete_this_arg;
5402 int save_this_is_output_file;
5403 int save_this_is_library_file;
5404 int save_input_from_pipe;
5405 const char *save_suffix_subst;
5408 sf = lookup_spec_function (func);
5410 fatal ("unknown spec function '%s'", func);
5412 /* Push the spec processing context. */
5413 save_argbuf_index = argbuf_index;
5414 save_argbuf_length = argbuf_length;
5415 save_argbuf = argbuf;
5417 save_arg_going = arg_going;
5418 save_delete_this_arg = delete_this_arg;
5419 save_this_is_output_file = this_is_output_file;
5420 save_this_is_library_file = this_is_library_file;
5421 save_input_from_pipe = input_from_pipe;
5422 save_suffix_subst = suffix_subst;
5424 /* Create a new spec processing context, and build the function
5428 if (do_spec_2 (args) < 0)
5429 fatal ("error in args to spec function '%s'", func);
5431 /* argbuf_index is an index for the next argument to be inserted, and
5432 so contains the count of the args already inserted. */
5434 funcval = (*sf->func) (argbuf_index, argbuf);
5436 /* Pop the spec processing context. */
5437 argbuf_index = save_argbuf_index;
5438 argbuf_length = save_argbuf_length;
5440 argbuf = save_argbuf;
5442 arg_going = save_arg_going;
5443 delete_this_arg = save_delete_this_arg;
5444 this_is_output_file = save_this_is_output_file;
5445 this_is_library_file = save_this_is_library_file;
5446 input_from_pipe = save_input_from_pipe;
5447 suffix_subst = save_suffix_subst;
5452 /* Handle a spec function call of the form:
5456 ARGS is processed as a spec in a separate context and split into an
5457 argument vector in the normal fashion. The function returns a string
5458 containing a spec which we then process in the caller's context, or
5459 NULL if no processing is required. */
5462 handle_spec_function (const char *p)
5465 const char *endp, *funcval;
5468 processing_spec_function++;
5470 /* Get the function name. */
5471 for (endp = p; *endp != '\0'; endp++)
5473 if (*endp == '(') /* ) */
5475 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5476 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
5477 fatal ("malformed spec function name");
5479 if (*endp != '(') /* ) */
5480 fatal ("no arguments for spec function");
5481 func = save_string (p, endp - p);
5484 /* Get the arguments. */
5485 for (count = 0; *endp != '\0'; endp++)
5494 else if (*endp == '(') /* ) */
5499 fatal ("malformed spec function arguments");
5500 args = save_string (p, endp - p);
5503 /* p now points to just past the end of the spec function expression. */
5505 funcval = eval_spec_function (func, args);
5506 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
5512 processing_spec_function--;
5517 /* Inline subroutine of handle_braces. Returns true if the current
5518 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5520 input_suffix_matches (const char *atom, const char *end_atom)
5522 /* We special case the semantics of {.s:...} and {.S:...} and their
5523 negative variants. Instead of testing the input filename suffix,
5524 we test whether the input source file is an assembler file or an
5525 assembler-with-cpp file respectively. This allows us to correctly
5526 handle the -x command line option. */
5528 if (atom + 1 == end_atom
5529 && input_file_compiler
5530 && input_file_compiler->suffix)
5533 return !strcmp (input_file_compiler->suffix, "@assembler");
5535 return !strcmp (input_file_compiler->suffix, "@assembler-with-cpp");
5538 return (input_suffix
5539 && !strncmp (input_suffix, atom, end_atom - atom)
5540 && input_suffix[end_atom - atom] == '\0');
5543 /* Subroutine of handle_braces. Returns true if a switch
5544 matching the atom bracketed by ATOM and END_ATOM appeared on the
5547 switch_matches (const char *atom, const char *end_atom, int starred)
5550 int len = end_atom - atom;
5551 int plen = starred ? len : -1;
5553 for (i = 0; i < n_switches; i++)
5554 if (!strncmp (switches[i].part1, atom, len)
5555 && (starred || switches[i].part1[len] == '\0')
5556 && check_live_switch (i, plen))
5562 /* Inline subroutine of handle_braces. Mark all of the switches which
5563 match ATOM (extends to END_ATOM; STARRED indicates whether there
5564 was a star after the atom) for later processing. */
5566 mark_matching_switches (const char *atom, const char *end_atom, int starred)
5569 int len = end_atom - atom;
5570 int plen = starred ? len : -1;
5572 for (i = 0; i < n_switches; i++)
5573 if (!strncmp (switches[i].part1, atom, len)
5574 && (starred || switches[i].part1[len] == '\0')
5575 && check_live_switch (i, plen))
5576 switches[i].ordering = 1;
5579 /* Inline subroutine of handle_braces. Process all the currently
5580 marked switches through give_switch, and clear the marks. */
5582 process_marked_switches (void)
5586 for (i = 0; i < n_switches; i++)
5587 if (switches[i].ordering == 1)
5589 switches[i].ordering = 0;
5594 /* Handle a %{ ... } construct. P points just inside the leading {.
5595 Returns a pointer one past the end of the brace block, or 0
5596 if we call do_spec_1 and that returns -1. */
5599 handle_braces (const char *p)
5601 const char *atom, *end_atom;
5602 const char *d_atom = NULL, *d_end_atom = NULL;
5603 const char *orig = p;
5610 bool a_must_be_last = false;
5611 bool ordered_set = false;
5612 bool disjunct_set = false;
5613 bool disj_matched = false;
5614 bool disj_starred = true;
5615 bool n_way_choice = false;
5616 bool n_way_matched = false;
5618 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5625 /* Scan one "atom" (S in the description above of %{}, possibly
5626 with !, ., or * modifiers). */
5627 a_matched = a_is_suffix = a_is_starred = a_is_negated = false;
5631 p++, a_is_negated = true;
5635 p++, a_is_suffix = true;
5638 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
5639 || *p == ',' || *p == '.' || *p == '@')
5644 p++, a_is_starred = 1;
5650 /* Substitute the switch(es) indicated by the current atom. */
5652 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
5653 || atom == end_atom)
5656 mark_matching_switches (atom, end_atom, a_is_starred);
5659 process_marked_switches ();
5663 /* Substitute some text if the current atom appears as a switch
5665 disjunct_set = true;
5669 if (atom == end_atom)
5671 if (!n_way_choice || disj_matched || *p == '|'
5672 || a_is_negated || a_is_suffix || a_is_starred)
5675 /* An empty term may appear as the last choice of an
5676 N-way choice set; it means "otherwise". */
5677 a_must_be_last = true;
5678 disj_matched = !n_way_matched;
5679 disj_starred = false;
5683 if (a_is_suffix && a_is_starred)
5687 disj_starred = false;
5689 /* Don't bother testing this atom if we already have a
5691 if (!disj_matched && !n_way_matched)
5694 a_matched = input_suffix_matches (atom, end_atom);
5696 a_matched = switch_matches (atom, end_atom, a_is_starred);
5698 if (a_matched != a_is_negated)
5700 disj_matched = true;
5702 d_end_atom = end_atom;
5709 /* Found the body, that is, the text to substitute if the
5710 current disjunction matches. */
5711 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
5712 disj_matched && !n_way_matched);
5716 /* If we have an N-way choice, reset state for the next
5720 n_way_choice = true;
5721 n_way_matched |= disj_matched;
5722 disj_matched = false;
5723 disj_starred = true;
5724 d_atom = d_end_atom = NULL;
5733 while (*p++ != '}');
5738 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
5743 /* Subroutine of handle_braces. Scan and process a brace substitution body
5744 (X in the description of %{} syntax). P points one past the colon;
5745 ATOM and END_ATOM bracket the first atom which was found to be true
5746 (present) in the current disjunction; STARRED indicates whether all
5747 the atoms in the current disjunction were starred (for syntax validation);
5748 MATCHED indicates whether the disjunction matched or not, and therefore
5749 whether or not the body is to be processed through do_spec_1 or just
5750 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5754 process_brace_body (const char *p, const char *atom, const char *end_atom,
5755 int starred, int matched)
5757 const char *body, *end_body;
5758 unsigned int nesting_level;
5759 bool have_subst = false;
5761 /* Locate the closing } or ;, honoring nested braces.
5762 Trim trailing whitespace. */
5771 if (!--nesting_level)
5774 else if (*p == ';' && nesting_level == 1)
5776 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
5778 else if (*p == '\0')
5784 while (end_body[-1] == ' ' || end_body[-1] == '\t')
5787 if (have_subst && !starred)
5792 /* Copy the substitution body to permanent storage and execute it.
5793 If have_subst is false, this is a simple matter of running the
5794 body through do_spec_1... */
5795 char *string = save_string (body, end_body - body);
5798 if (do_spec_1 (string, 0, NULL) < 0)
5803 /* ... but if have_subst is true, we have to process the
5804 body once for each matching switch, with %* set to the
5805 variant part of the switch. */
5806 unsigned int hard_match_len = end_atom - atom;
5809 for (i = 0; i < n_switches; i++)
5810 if (!strncmp (switches[i].part1, atom, hard_match_len)
5811 && check_live_switch (i, hard_match_len))
5813 if (do_spec_1 (string, 0,
5814 &switches[i].part1[hard_match_len]) < 0)
5816 /* Pass any arguments this switch has. */
5818 suffix_subst = NULL;
5826 fatal ("braced spec body '%s' is invalid", body);
5829 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5830 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5831 spec, or -1 if either exact match or %* is used.
5833 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5834 whose value does not begin with "no-" is obsoleted by the same value
5835 with the "no-", similarly for a switch with the "no-" prefix. */
5838 check_live_switch (int switchnum, int prefix_length)
5840 const char *name = switches[switchnum].part1;
5843 /* In the common case of {<at-most-one-letter>*}, a negating
5844 switch would always match, so ignore that case. We will just
5845 send the conflicting switches to the compiler phase. */
5846 if (prefix_length >= 0 && prefix_length <= 1)
5849 /* If we already processed this switch and determined if it was
5850 live or not, return our past determination. */
5851 if (switches[switchnum].live_cond != 0)
5852 return switches[switchnum].live_cond > 0;
5854 /* Now search for duplicate in a manner that depends on the name. */
5858 for (i = switchnum + 1; i < n_switches; i++)
5859 if (switches[i].part1[0] == 'O')
5861 switches[switchnum].validated = 1;
5862 switches[switchnum].live_cond = SWITCH_FALSE;
5867 case 'W': case 'f': case 'm':
5868 if (! strncmp (name + 1, "no-", 3))
5870 /* We have Xno-YYY, search for XYYY. */
5871 for (i = switchnum + 1; i < n_switches; i++)
5872 if (switches[i].part1[0] == name[0]
5873 && ! strcmp (&switches[i].part1[1], &name[4]))
5875 switches[switchnum].validated = 1;
5876 switches[switchnum].live_cond = SWITCH_FALSE;
5882 /* We have XYYY, search for Xno-YYY. */
5883 for (i = switchnum + 1; i < n_switches; i++)
5884 if (switches[i].part1[0] == name[0]
5885 && switches[i].part1[1] == 'n'
5886 && switches[i].part1[2] == 'o'
5887 && switches[i].part1[3] == '-'
5888 && !strcmp (&switches[i].part1[4], &name[1]))
5890 switches[switchnum].validated = 1;
5891 switches[switchnum].live_cond = SWITCH_FALSE;
5898 /* Otherwise the switch is live. */
5899 switches[switchnum].live_cond = SWITCH_LIVE;
5903 /* Pass a switch to the current accumulating command
5904 in the same form that we received it.
5905 SWITCHNUM identifies the switch; it is an index into
5906 the vector of switches gcc received, which is `switches'.
5907 This cannot fail since it never finishes a command line.
5909 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5912 give_switch (int switchnum, int omit_first_word)
5914 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5917 if (!omit_first_word)
5919 do_spec_1 ("-", 0, NULL);
5920 do_spec_1 (switches[switchnum].part1, 1, NULL);
5923 if (switches[switchnum].args != 0)
5926 for (p = switches[switchnum].args; *p; p++)
5928 const char *arg = *p;
5930 do_spec_1 (" ", 0, NULL);
5933 unsigned length = strlen (arg);
5936 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5937 if (arg[length] == '.')
5939 ((char *)arg)[length] = 0;
5943 do_spec_1 (arg, 1, NULL);
5945 ((char *)arg)[length] = '.';
5946 do_spec_1 (suffix_subst, 1, NULL);
5949 do_spec_1 (arg, 1, NULL);
5953 do_spec_1 (" ", 0, NULL);
5954 switches[switchnum].validated = 1;
5957 /* Search for a file named NAME trying various prefixes including the
5958 user's -B prefix and some standard ones.
5959 Return the absolute file name found. If nothing is found, return NAME. */
5962 find_file (const char *name)
5964 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
5965 return newname ? newname : name;
5968 /* Determine whether a directory exists. If LINKER, return 0 for
5969 certain fixed names not needed by the linker. */
5972 is_directory (const char *path1, bool linker)
5979 /* Ensure the string ends with "/.". The resulting path will be a
5980 directory even if the given path is a symbolic link. */
5981 len1 = strlen (path1);
5982 path = alloca (3 + len1);
5983 memcpy (path, path1, len1);
5985 if (!IS_DIR_SEPARATOR (cp[-1]))
5986 *cp++ = DIR_SEPARATOR;
5990 /* Exclude directories that the linker is known to search. */
5992 && IS_DIR_SEPARATOR (path[0])
5994 && strncmp (path + 1, "lib", 3) == 0)
5996 && strncmp (path + 1, "usr", 3) == 0
5997 && IS_DIR_SEPARATOR (path[4])
5998 && strncmp (path + 5, "lib", 3) == 0)))
6001 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6004 /* Set up the various global variables to indicate that we're processing
6005 the input file named FILENAME. */
6008 set_input (const char *filename)
6012 input_filename = filename;
6013 input_filename_length = strlen (input_filename);
6015 input_basename = input_filename;
6016 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6017 /* Skip drive name so 'x:foo' is handled properly. */
6018 if (input_basename[1] == ':')
6019 input_basename += 2;
6021 for (p = input_basename; *p; p++)
6022 if (IS_DIR_SEPARATOR (*p))
6023 input_basename = p + 1;
6025 /* Find a suffix starting with the last period,
6026 and set basename_length to exclude that suffix. */
6027 basename_length = strlen (input_basename);
6028 suffixed_basename_length = basename_length;
6029 p = input_basename + basename_length;
6030 while (p != input_basename && *p != '.')
6032 if (*p == '.' && p != input_basename)
6034 basename_length = p - input_basename;
6035 input_suffix = p + 1;
6040 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6041 we will need to do a stat on the input_filename. The
6042 INPUT_STAT_SET signals that the stat is needed. */
6046 /* On fatal signals, delete all the temporary files. */
6049 fatal_error (int signum)
6051 signal (signum, SIG_DFL);
6052 delete_failure_queue ();
6053 delete_temp_files ();
6054 /* Get the same signal again, this time not handled,
6055 so its normal effect occurs. */
6056 kill (getpid (), signum);
6059 extern int main (int, char **);
6062 main (int argc, char **argv)
6066 int linker_was_run = 0;
6067 int lang_n_infiles = 0;
6068 int num_linker_inputs = 0;
6069 char *explicit_link_files;
6072 struct user_specs *uptr;
6074 p = argv[0] + strlen (argv[0]);
6075 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6079 xmalloc_set_program_name (programname);
6081 expandargv (&argc, &argv);
6083 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6084 /* Perform host dependent initialization when needed. */
6085 GCC_DRIVER_HOST_INITIALIZATION;
6088 /* Unlock the stdio streams. */
6089 unlock_std_streams ();
6091 gcc_init_libintl ();
6093 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6094 signal (SIGINT, fatal_error);
6096 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6097 signal (SIGHUP, fatal_error);
6099 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6100 signal (SIGTERM, fatal_error);
6102 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6103 signal (SIGPIPE, fatal_error);
6106 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6107 receive the signal. A different setting is inheritable */
6108 signal (SIGCHLD, SIG_DFL);
6111 /* Allocate the argument vector. */
6114 obstack_init (&obstack);
6116 /* Build multilib_select, et. al from the separate lines that make up each
6117 multilib selection. */
6119 const char *const *q = multilib_raw;
6122 obstack_init (&multilib_obstack);
6123 while ((p = *q++) != (char *) 0)
6124 obstack_grow (&multilib_obstack, p, strlen (p));
6126 obstack_1grow (&multilib_obstack, 0);
6127 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6129 q = multilib_matches_raw;
6130 while ((p = *q++) != (char *) 0)
6131 obstack_grow (&multilib_obstack, p, strlen (p));
6133 obstack_1grow (&multilib_obstack, 0);
6134 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6136 q = multilib_exclusions_raw;
6137 while ((p = *q++) != (char *) 0)
6138 obstack_grow (&multilib_obstack, p, strlen (p));
6140 obstack_1grow (&multilib_obstack, 0);
6141 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6144 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6147 obstack_1grow (&multilib_obstack, ' ');
6148 obstack_grow (&multilib_obstack,
6149 multilib_defaults_raw[i],
6150 strlen (multilib_defaults_raw[i]));
6154 obstack_1grow (&multilib_obstack, 0);
6155 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6158 /* Set up to remember the pathname of gcc and any options
6159 needed for collect. We use argv[0] instead of programname because
6160 we need the complete pathname. */
6161 obstack_init (&collect_obstack);
6162 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6163 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
6164 putenv (XOBFINISH (&collect_obstack, char *));
6166 #ifdef INIT_ENVIRONMENT
6167 /* Set up any other necessary machine specific environment variables. */
6168 putenv (INIT_ENVIRONMENT);
6171 /* Make a table of what switches there are (switches, n_switches).
6172 Make a table of specified input files (infiles, n_infiles).
6173 Decode switches that are handled locally. */
6175 process_command (argc, (const char **) argv);
6177 /* Initialize the vector of specs to just the default.
6178 This means one element containing 0s, as a terminator. */
6180 compilers = xmalloc (sizeof default_compilers);
6181 memcpy (compilers, default_compilers, sizeof default_compilers);
6182 n_compilers = n_default_compilers;
6184 /* Read specs from a file if there is one. */
6186 machine_suffix = concat (spec_machine, dir_separator_str,
6187 spec_version, dir_separator_str, NULL);
6188 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6190 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6191 /* Read the specs file unless it is a default one. */
6192 if (specs_file != 0 && strcmp (specs_file, "specs"))
6193 read_specs (specs_file, TRUE);
6197 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6198 for any override of as, ld and libraries. */
6199 specs_file = alloca (strlen (standard_exec_prefix)
6200 + strlen (just_machine_suffix) + sizeof ("specs"));
6202 strcpy (specs_file, standard_exec_prefix);
6203 strcat (specs_file, just_machine_suffix);
6204 strcat (specs_file, "specs");
6205 if (access (specs_file, R_OK) == 0)
6206 read_specs (specs_file, TRUE);
6208 /* Process any configure-time defaults specified for the command line
6209 options, via OPTION_DEFAULT_SPECS. */
6210 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6211 do_option_spec (option_default_specs[i].name,
6212 option_default_specs[i].spec);
6214 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6215 of the command line. */
6217 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6218 do_self_spec (driver_self_specs[i]);
6220 /* If not cross-compiling, look for executables in the standard
6222 if (*cross_compile == '0')
6224 if (*md_exec_prefix)
6226 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6227 PREFIX_PRIORITY_LAST, 0, 0);
6231 /* Process sysroot_suffix_spec. */
6232 if (*sysroot_suffix_spec != 0
6233 && do_spec_2 (sysroot_suffix_spec) == 0)
6235 if (argbuf_index > 1)
6236 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6237 else if (argbuf_index == 1)
6238 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6241 #ifdef HAVE_LD_SYSROOT
6242 /* Pass the --sysroot option to the linker, if it supports that. If
6243 there is a sysroot_suffix_spec, it has already been processed by
6244 this point, so target_system_root really is the system root we
6246 if (target_system_root)
6248 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6249 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6250 set_spec ("link", XOBFINISH (&obstack, const char *));
6254 /* Process sysroot_hdrs_suffix_spec. */
6255 if (*sysroot_hdrs_suffix_spec != 0
6256 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6258 if (argbuf_index > 1)
6259 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6260 else if (argbuf_index == 1)
6261 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6264 /* Look for startfiles in the standard places. */
6265 if (*startfile_prefix_spec != 0
6266 && do_spec_2 (startfile_prefix_spec) == 0
6267 && do_spec_1 (" ", 0, NULL) == 0)
6270 for (ndx = 0; ndx < argbuf_index; ndx++)
6271 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
6272 PREFIX_PRIORITY_LAST, 0, 1);
6274 /* We should eventually get rid of all these and stick to
6275 startfile_prefix_spec exclusively. */
6276 else if (*cross_compile == '0' || target_system_root)
6278 if (*md_startfile_prefix)
6279 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
6280 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6282 if (*md_startfile_prefix_1)
6283 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
6284 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6286 /* If standard_startfile_prefix is relative, base it on
6287 standard_exec_prefix. This lets us move the installed tree
6288 as a unit. If GCC_EXEC_PREFIX is defined, base
6289 standard_startfile_prefix on that as well.
6291 If the prefix is relative, only search it for native compilers;
6292 otherwise we will search a directory containing host libraries. */
6293 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
6294 add_sysrooted_prefix (&startfile_prefixes,
6295 standard_startfile_prefix, "BINUTILS",
6296 PREFIX_PRIORITY_LAST, 0, 1);
6297 else if (*cross_compile == '0')
6299 if (gcc_exec_prefix)
6300 add_prefix (&startfile_prefixes,
6301 concat (gcc_exec_prefix, machine_suffix,
6302 standard_startfile_prefix, NULL),
6303 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6304 add_prefix (&startfile_prefixes,
6305 concat (standard_exec_prefix,
6307 standard_startfile_prefix, NULL),
6308 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6311 if (*standard_startfile_prefix_1)
6312 add_sysrooted_prefix (&startfile_prefixes,
6313 standard_startfile_prefix_1, "BINUTILS",
6314 PREFIX_PRIORITY_LAST, 0, 1);
6315 if (*standard_startfile_prefix_2)
6316 add_sysrooted_prefix (&startfile_prefixes,
6317 standard_startfile_prefix_2, "BINUTILS",
6318 PREFIX_PRIORITY_LAST, 0, 1);
6321 /* Process any user specified specs in the order given on the command
6323 for (uptr = user_specs_head; uptr; uptr = uptr->next)
6325 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
6327 read_specs (filename ? filename : uptr->filename, FALSE);
6330 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6331 if (gcc_exec_prefix)
6332 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
6333 spec_version, dir_separator_str, NULL);
6335 /* Now we have the specs.
6336 Set the `valid' bits for switches that match anything in any spec. */
6338 validate_all_switches ();
6340 /* Now that we have the switches and the specs, set
6341 the subdirectory based on the options. */
6342 set_multilib_dir ();
6344 /* Warn about any switches that no pass was interested in. */
6346 for (i = 0; (int) i < n_switches; i++)
6347 if (! switches[i].validated)
6348 error ("unrecognized option '-%s'", switches[i].part1);
6350 /* Obey some of the options. */
6352 if (print_search_dirs)
6354 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
6355 printf (_("programs: %s\n"),
6356 build_search_list (&exec_prefixes, "", false, false));
6357 printf (_("libraries: %s\n"),
6358 build_search_list (&startfile_prefixes, "", false, true));
6362 if (print_file_name)
6364 printf ("%s\n", find_file (print_file_name));
6368 if (print_prog_name)
6370 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
6371 printf ("%s\n", (newname ? newname : print_prog_name));
6375 if (print_multi_lib)
6377 print_multilib_info ();
6381 if (print_multi_directory)
6383 if (multilib_dir == NULL)
6386 printf ("%s\n", multilib_dir);
6390 if (print_multi_os_directory)
6392 if (multilib_os_dir == NULL)
6395 printf ("%s\n", multilib_os_dir);
6399 if (target_help_flag)
6401 /* Print if any target specific options. */
6403 /* We do not exit here. Instead we have created a fake input file
6404 called 'target-dummy' which needs to be compiled, and we pass this
6405 on to the various sub-processes, along with the --target-help
6409 if (print_help_list)
6415 printf (_("\nFor bug reporting instructions, please see:\n"));
6416 printf ("%s.\n", bug_report_url);
6421 /* We do not exit here. Instead we have created a fake input file
6422 called 'help-dummy' which needs to be compiled, and we pass this
6423 on the various sub-processes, along with the --help switch. */
6431 notice ("Target: %s\n", spec_machine);
6432 notice ("Configured with: %s\n", configuration_arguments);
6434 #ifdef THREAD_MODEL_SPEC
6435 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6436 but there's no point in doing all this processing just to get
6437 thread_model back. */
6438 obstack_init (&obstack);
6439 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
6440 obstack_1grow (&obstack, '\0');
6441 thrmod = XOBFINISH (&obstack, const char *);
6443 thrmod = thread_model;
6446 notice ("Thread model: %s\n", thrmod);
6448 /* compiler_version is truncated at the first space when initialized
6449 from version string, so truncate version_string at the first space
6450 before comparing. */
6451 for (n = 0; version_string[n]; n++)
6452 if (version_string[n] == ' ')
6455 if (! strncmp (version_string, compiler_version, n)
6456 && compiler_version[n] == 0)
6457 notice ("gcc version %s\n", version_string);
6459 notice ("gcc driver version %s executing gcc version %s\n",
6460 version_string, compiler_version);
6466 if (n_infiles == added_libraries)
6467 fatal ("no input files");
6469 /* Make a place to record the compiler output file names
6470 that correspond to the input files. */
6473 i += lang_specific_extra_outfiles;
6474 outfiles = xcalloc (i, sizeof (char *));
6476 /* Record which files were specified explicitly as link input. */
6478 explicit_link_files = xcalloc (1, n_infiles);
6481 combine_inputs = true;
6483 combine_inputs = false;
6485 for (i = 0; (int) i < n_infiles; i++)
6487 const char *name = infiles[i].name;
6488 struct compiler *compiler = lookup_compiler (name,
6490 infiles[i].language);
6492 if (compiler && !(compiler->combinable))
6493 combine_inputs = false;
6495 if (lang_n_infiles > 0 && compiler != input_file_compiler
6496 && infiles[i].language && infiles[i].language[0] != '*')
6497 infiles[i].incompiler = compiler;
6501 input_file_compiler = compiler;
6502 infiles[i].incompiler = compiler;
6506 /* Since there is no compiler for this input file, assume it is a
6508 explicit_link_files[i] = 1;
6509 infiles[i].incompiler = NULL;
6511 infiles[i].compiled = false;
6512 infiles[i].preprocessed = false;
6515 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
6516 fatal ("cannot specify -o with -c or -S with multiple files");
6518 if (combine_flag && save_temps_flag)
6520 bool save_combine_inputs = combine_inputs;
6521 /* Must do a separate pre-processing pass for C & Objective-C files, to
6522 obtain individual .i files. */
6524 combine_inputs = false;
6525 for (i = 0; (int) i < n_infiles; i++)
6527 int this_file_error = 0;
6529 input_file_number = i;
6530 set_input (infiles[i].name);
6531 if (infiles[i].incompiler
6532 && (infiles[i].incompiler)->needs_preprocessing)
6533 input_file_compiler = infiles[i].incompiler;
6537 if (input_file_compiler)
6539 if (input_file_compiler->spec[0] == '#')
6541 error ("%s: %s compiler not installed on this system",
6542 input_filename, &input_file_compiler->spec[1]);
6543 this_file_error = 1;
6547 value = do_spec (input_file_compiler->spec);
6548 infiles[i].preprocessed = true;
6549 if (!have_o_argbuf_index)
6550 fatal ("spec '%s' is invalid", input_file_compiler->spec);
6551 infiles[i].name = argbuf[have_o_argbuf_index];
6552 infiles[i].incompiler
6553 = lookup_compiler (infiles[i].name,
6554 strlen (infiles[i].name),
6555 infiles[i].language);
6558 this_file_error = 1;
6562 if (this_file_error)
6564 delete_failure_queue ();
6568 clear_failure_queue ();
6570 combine_inputs = save_combine_inputs;
6573 for (i = 0; (int) i < n_infiles; i++)
6575 int this_file_error = 0;
6577 /* Tell do_spec what to substitute for %i. */
6579 input_file_number = i;
6580 set_input (infiles[i].name);
6582 if (infiles[i].compiled)
6585 /* Use the same thing in %o, unless cp->spec says otherwise. */
6587 outfiles[i] = input_filename;
6589 /* Figure out which compiler from the file's suffix. */
6591 if (! combine_inputs)
6593 = lookup_compiler (infiles[i].name, input_filename_length,
6594 infiles[i].language);
6596 input_file_compiler = infiles[i].incompiler;
6598 if (input_file_compiler)
6600 /* Ok, we found an applicable compiler. Run its spec. */
6602 if (input_file_compiler->spec[0] == '#')
6604 error ("%s: %s compiler not installed on this system",
6605 input_filename, &input_file_compiler->spec[1]);
6606 this_file_error = 1;
6610 value = do_spec (input_file_compiler->spec);
6611 infiles[i].compiled = true;
6613 this_file_error = 1;
6617 /* If this file's name does not contain a recognized suffix,
6618 record it as explicit linker input. */
6621 explicit_link_files[i] = 1;
6623 /* Clear the delete-on-failure queue, deleting the files in it
6624 if this compilation failed. */
6626 if (this_file_error)
6628 delete_failure_queue ();
6631 /* If this compilation succeeded, don't delete those files later. */
6632 clear_failure_queue ();
6635 /* Reset the input file name to the first compile/object file name, for use
6636 with %b in LINK_SPEC. We use the first input file that we can find
6637 a compiler to compile it instead of using infiles.language since for
6638 languages other than C we use aliases that we then lookup later. */
6643 for (i = 0; i < n_infiles ; i++)
6644 if (infiles[i].language && infiles[i].language[0] != '*')
6646 set_input (infiles[i].name);
6651 if (error_count == 0)
6653 /* Make sure INPUT_FILE_NUMBER points to first available open
6655 input_file_number = n_infiles;
6656 if (lang_specific_pre_link ())
6660 /* Determine if there are any linker input files. */
6661 num_linker_inputs = 0;
6662 for (i = 0; (int) i < n_infiles; i++)
6663 if (explicit_link_files[i] || outfiles[i] != NULL)
6664 num_linker_inputs++;
6666 /* Run ld to link all the compiler output files. */
6668 if (num_linker_inputs > 0 && error_count == 0)
6670 int tmp = execution_count;
6672 /* We'll use ld if we can't find collect2. */
6673 if (! strcmp (linker_name_spec, "collect2"))
6675 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
6677 linker_name_spec = "ld";
6679 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6681 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
6682 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
6684 value = do_spec (link_command_spec);
6687 linker_was_run = (tmp != execution_count);
6690 /* If options said don't run linker,
6691 complain about input files to be given to the linker. */
6693 if (! linker_was_run && error_count == 0)
6694 for (i = 0; (int) i < n_infiles; i++)
6695 if (explicit_link_files[i])
6696 error ("%s: linker input file unused because linking not done",
6699 /* Delete some or all of the temporary files we made. */
6702 delete_failure_queue ();
6703 delete_temp_files ();
6705 if (print_help_list)
6707 printf (("\nFor bug reporting instructions, please see:\n"));
6708 printf ("%s\n", bug_report_url);
6711 return (signal_count != 0 ? 2
6712 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6716 /* Find the proper compilation spec for the file name NAME,
6717 whose length is LENGTH. LANGUAGE is the specified language,
6718 or 0 if this file is to be passed to the linker. */
6720 static struct compiler *
6721 lookup_compiler (const char *name, size_t length, const char *language)
6723 struct compiler *cp;
6725 /* If this was specified by the user to be a linker input, indicate that. */
6726 if (language != 0 && language[0] == '*')
6729 /* Otherwise, look for the language, if one is spec'd. */
6732 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6733 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6736 error ("language %s not recognized", language);
6740 /* Look for a suffix. */
6741 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6743 if (/* The suffix `-' matches only the file name `-'. */
6744 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6745 || (strlen (cp->suffix) < length
6746 /* See if the suffix matches the end of NAME. */
6747 && !strcmp (cp->suffix,
6748 name + length - strlen (cp->suffix))
6753 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6754 /* Look again, but case-insensitively this time. */
6756 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6758 if (/* The suffix `-' matches only the file name `-'. */
6759 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6760 || (strlen (cp->suffix) < length
6761 /* See if the suffix matches the end of NAME. */
6762 && ((!strcmp (cp->suffix,
6763 name + length - strlen (cp->suffix))
6764 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6765 && !strcasecmp (cp->suffix,
6766 name + length - strlen (cp->suffix)))
6772 if (cp >= compilers)
6774 if (cp->spec[0] != '@')
6775 /* A non-alias entry: return it. */
6778 /* An alias entry maps a suffix to a language.
6779 Search for the language; pass 0 for NAME and LENGTH
6780 to avoid infinite recursion if language not found. */
6781 return lookup_compiler (NULL, 0, cp->spec + 1);
6787 save_string (const char *s, int len)
6789 char *result = xmalloc (len + 1);
6791 memcpy (result, s, len);
6797 pfatal_with_name (const char *name)
6799 perror_with_name (name);
6800 delete_temp_files ();
6805 perror_with_name (const char *name)
6807 error ("%s: %s", name, xstrerror (errno));
6810 /* Output an error message and exit. */
6813 fancy_abort (const char *file, int line, const char *func)
6815 fatal ("internal gcc abort in %s, at %s:%d", func, file, line);
6818 /* Output an error message and exit. */
6821 fatal (const char *cmsgid, ...)
6825 va_start (ap, cmsgid);
6827 fprintf (stderr, "%s: ", programname);
6828 vfprintf (stderr, _(cmsgid), ap);
6830 fprintf (stderr, "\n");
6831 delete_temp_files ();
6835 /* The argument is actually c-format, not gcc-internal-format,
6836 but because functions with identical names are used through
6837 the rest of the compiler with gcc-internal-format, we just
6838 need to hope all users of these functions use the common
6839 subset between c-format and gcc-internal-format. */
6842 error (const char *gmsgid, ...)
6846 va_start (ap, gmsgid);
6847 fprintf (stderr, "%s: ", programname);
6848 vfprintf (stderr, _(gmsgid), ap);
6851 fprintf (stderr, "\n");
6855 notice (const char *cmsgid, ...)
6859 va_start (ap, cmsgid);
6860 vfprintf (stderr, _(cmsgid), ap);
6865 validate_switches_from_spec (const char *spec)
6867 const char *p = spec;
6870 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
6871 /* We have a switch spec. */
6872 p = validate_switches (p + 1);
6876 validate_all_switches (void)
6878 struct compiler *comp;
6879 struct spec_list *spec;
6881 for (comp = compilers; comp->spec; comp++)
6882 validate_switches_from_spec (comp->spec);
6884 /* Look through the linked list of specs read from the specs file. */
6885 for (spec = specs; spec; spec = spec->next)
6886 validate_switches_from_spec (*spec->ptr_spec);
6888 validate_switches_from_spec (link_command_spec);
6891 /* Look at the switch-name that comes after START
6892 and mark as valid all supplied switches that match it. */
6895 validate_switches (const char *start)
6897 const char *p = start;
6901 bool suffix = false;
6902 bool starred = false;
6904 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6917 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
6918 || *p == ',' || *p == '.' || *p == '@')
6923 starred = true, p++;
6929 /* Mark all matching switches as valid. */
6930 for (i = 0; i < n_switches; i++)
6931 if (!strncmp (switches[i].part1, atom, len)
6932 && (starred || switches[i].part1[len] == 0))
6933 switches[i].validated = 1;
6937 if (*p && (p[-1] == '|' || p[-1] == '&'))
6940 if (*p && p[-1] == ':')
6942 while (*p && *p != ';' && *p != '}')
6947 if (*p == '{' || *p == '<')
6948 p = validate_switches (p+1);
6949 else if (p[0] == 'W' && p[1] == '{')
6950 p = validate_switches (p+2);
6957 if (*p && p[-1] == ';')
6971 static struct mdswitchstr *mdswitches;
6972 static int n_mdswitches;
6974 /* Check whether a particular argument was used. The first time we
6975 canonicalize the switches to keep only the ones we care about. */
6978 used_arg (const char *p, int len)
6983 const char *replace;
6988 static struct mswitchstr *mswitches;
6989 static int n_mswitches;
6994 struct mswitchstr *matches;
6998 /* Break multilib_matches into the component strings of string
6999 and replacement string. */
7000 for (q = multilib_matches; *q != '\0'; q++)
7004 matches = alloca ((sizeof (struct mswitchstr)) * cnt);
7006 q = multilib_matches;
7015 fatal ("multilib spec '%s' is invalid", multilib_matches);
7019 matches[i].len = q - matches[i].str;
7021 matches[i].replace = ++q;
7022 while (*q != ';' && *q != '\0')
7025 goto invalid_matches;
7028 matches[i].rep_len = q - matches[i].replace;
7034 /* Now build a list of the replacement string for switches that we care
7035 about. Make sure we allocate at least one entry. This prevents
7036 xmalloc from calling fatal, and prevents us from re-executing this
7039 = xmalloc (sizeof (struct mswitchstr)
7040 * (n_mdswitches + (n_switches ? n_switches : 1)));
7041 for (i = 0; i < n_switches; i++)
7042 if (switches[i].live_cond != SWITCH_IGNORE)
7044 int xlen = strlen (switches[i].part1);
7045 for (j = 0; j < cnt; j++)
7046 if (xlen == matches[j].len
7047 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7049 mswitches[n_mswitches].str = matches[j].replace;
7050 mswitches[n_mswitches].len = matches[j].rep_len;
7051 mswitches[n_mswitches].replace = (char *) 0;
7052 mswitches[n_mswitches].rep_len = 0;
7058 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7059 on the command line nor any options mutually incompatible with
7061 for (i = 0; i < n_mdswitches; i++)
7065 for (q = multilib_options; *q != '\0'; q++)
7071 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7072 || strchr (" /", q[mdswitches[i].len]) == NULL)
7074 while (*q != ' ' && *q != '/' && *q != '\0')
7081 if (*q != ' ' && *q != '\0')
7083 while (*r != ' ' && *r != '\0')
7086 while (*q != ' ' && *q != '/' && *q != '\0')
7089 if (used_arg (r, q - r))
7094 mswitches[n_mswitches].str = mdswitches[i].str;
7095 mswitches[n_mswitches].len = mdswitches[i].len;
7096 mswitches[n_mswitches].replace = (char *) 0;
7097 mswitches[n_mswitches].rep_len = 0;
7110 for (i = 0; i < n_mswitches; i++)
7111 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
7118 default_arg (const char *p, int len)
7122 for (i = 0; i < n_mdswitches; i++)
7123 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
7129 /* Work out the subdirectory to use based on the options. The format of
7130 multilib_select is a list of elements. Each element is a subdirectory
7131 name followed by a list of options followed by a semicolon. The format
7132 of multilib_exclusions is the same, but without the preceding
7133 directory. First gcc will check the exclusions, if none of the options
7134 beginning with an exclamation point are present, and all of the other
7135 options are present, then we will ignore this completely. Passing
7136 that, gcc will consider each multilib_select in turn using the same
7137 rules for matching the options. If a match is found, that subdirectory
7141 set_multilib_dir (void)
7144 unsigned int this_path_len;
7145 const char *this_path, *this_arg;
7146 const char *start, *end;
7148 int ok, ndfltok, first;
7151 start = multilib_defaults;
7152 while (*start == ' ' || *start == '\t')
7154 while (*start != '\0')
7157 while (*start != ' ' && *start != '\t' && *start != '\0')
7159 while (*start == ' ' || *start == '\t')
7167 mdswitches = xmalloc (sizeof (struct mdswitchstr) * n_mdswitches);
7168 for (start = multilib_defaults; *start != '\0'; start = end + 1)
7170 while (*start == ' ' || *start == '\t')
7176 for (end = start + 1;
7177 *end != ' ' && *end != '\t' && *end != '\0'; end++)
7180 obstack_grow (&multilib_obstack, start, end - start);
7181 obstack_1grow (&multilib_obstack, 0);
7182 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
7183 mdswitches[i++].len = end - start;
7190 p = multilib_exclusions;
7193 /* Ignore newlines. */
7200 /* Check the arguments. */
7207 fatal ("multilib exclusions '%s' is invalid",
7208 multilib_exclusions);
7218 while (*p != ' ' && *p != ';')
7221 goto invalid_exclusions;
7225 if (*this_arg != '!')
7233 ok = used_arg (this_arg, p - this_arg);
7248 p = multilib_select;
7251 /* Ignore newlines. */
7258 /* Get the initial path. */
7265 fatal ("multilib select '%s' is invalid",
7270 this_path_len = p - this_path;
7272 /* Check the arguments. */
7279 goto invalid_select;
7288 while (*p != ' ' && *p != ';')
7291 goto invalid_select;
7295 if (*this_arg != '!')
7303 /* If this is a default argument, we can just ignore it.
7304 This is true even if this_arg begins with '!'. Beginning
7305 with '!' does not mean that this argument is necessarily
7306 inappropriate for this library: it merely means that
7307 there is a more specific library which uses this
7308 argument. If this argument is a default, we need not
7309 consider that more specific library. */
7310 ok = used_arg (this_arg, p - this_arg);
7317 if (default_arg (this_arg, p - this_arg))
7326 if (this_path_len != 1
7327 || this_path[0] != '.')
7329 char *new_multilib_dir = xmalloc (this_path_len + 1);
7332 strncpy (new_multilib_dir, this_path, this_path_len);
7333 new_multilib_dir[this_path_len] = '\0';
7334 q = strchr (new_multilib_dir, ':');
7337 multilib_dir = new_multilib_dir;
7344 const char *q = this_path, *end = this_path + this_path_len;
7346 while (q < end && *q != ':')
7350 char *new_multilib_os_dir = xmalloc (end - q);
7351 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
7352 new_multilib_os_dir[end - q - 1] = '\0';
7353 multilib_os_dir = new_multilib_os_dir;
7361 if (multilib_dir == NULL && multilib_os_dir != NULL
7362 && strcmp (multilib_os_dir, ".") == 0)
7364 free ((char *) multilib_os_dir);
7365 multilib_os_dir = NULL;
7367 else if (multilib_dir != NULL && multilib_os_dir == NULL)
7368 multilib_os_dir = multilib_dir;
7371 /* Print out the multiple library subdirectory selection
7372 information. This prints out a series of lines. Each line looks
7373 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7374 required. Only the desired options are printed out, the negative
7375 matches. The options are print without a leading dash. There are
7376 no spaces to make it easy to use the information in the shell.
7377 Each subdirectory is printed only once. This assumes the ordering
7378 generated by the genmultilib script. Also, we leave out ones that match
7382 print_multilib_info (void)
7384 const char *p = multilib_select;
7385 const char *last_path = 0, *this_path;
7387 unsigned int last_path_len = 0;
7392 /* Ignore newlines. */
7399 /* Get the initial path. */
7406 fatal ("multilib select '%s' is invalid", multilib_select);
7412 /* When --disable-multilib was used but target defines
7413 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7414 to find multilib_os_dir, so skip them from output. */
7415 if (this_path[0] == '.' && this_path[1] == ':')
7418 /* Check for matches with the multilib_exclusions. We don't bother
7419 with the '!' in either list. If any of the exclusion rules match
7420 all of its options with the select rule, we skip it. */
7422 const char *e = multilib_exclusions;
7423 const char *this_arg;
7428 /* Ignore newlines. */
7435 /* Check the arguments. */
7444 fatal ("multilib exclusion '%s' is invalid",
7445 multilib_exclusions);
7456 while (*e != ' ' && *e != ';')
7459 goto invalid_exclusion;
7467 int len = e - this_arg;
7470 goto invalid_select;
7474 while (*q != ' ' && *q != ';')
7477 goto invalid_select;
7481 if (! strncmp (arg, this_arg,
7482 (len < q - arg) ? q - arg : len)
7483 || default_arg (this_arg, e - this_arg))
7513 /* If this is a duplicate, skip it. */
7514 skip = (last_path != 0
7515 && (unsigned int) (p - this_path) == last_path_len
7516 && ! strncmp (last_path, this_path, last_path_len));
7518 last_path = this_path;
7519 last_path_len = p - this_path;
7522 /* If this directory requires any default arguments, we can skip
7523 it. We will already have printed a directory identical to
7524 this one which does not require that default argument. */
7535 goto invalid_select;
7542 while (*q != ' ' && *q != ';')
7545 goto invalid_select;
7550 && default_arg (arg, q - arg))
7565 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
7576 goto invalid_select;
7584 use_arg = *p != '!';
7589 while (*p != ' ' && *p != ';')
7592 goto invalid_select;
7604 /* If there are extra options, print them now. */
7605 if (multilib_extra && *multilib_extra)
7607 int print_at = TRUE;
7610 for (q = multilib_extra; *q != '\0'; q++)
7631 /* if-exists built-in spec function.
7633 Checks to see if the file specified by the absolute pathname in
7634 ARGS exists. Returns that pathname if found.
7636 The usual use for this function is to check for a library file
7637 (whose name has been expanded with %s). */
7640 if_exists_spec_function (int argc, const char **argv)
7642 /* Must have only one argument. */
7643 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7649 /* if-exists-else built-in spec function.
7651 This is like if-exists, but takes an additional argument which
7652 is returned if the first argument does not exist. */
7655 if_exists_else_spec_function (int argc, const char **argv)
7657 /* Must have exactly two arguments. */
7661 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7667 /* replace-outfile built-in spec function.
7669 This looks for the first argument in the outfiles array's name and
7670 replaces it with the second argument. */
7673 replace_outfile_spec_function (int argc, const char **argv)
7676 /* Must have exactly two arguments. */
7680 for (i = 0; i < n_infiles; i++)
7682 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
7683 outfiles[i] = xstrdup (argv[1]);
7688 /* Given two version numbers, compares the two numbers.
7689 A version number must match the regular expression
7690 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7693 compare_version_strings (const char *v1, const char *v2)
7698 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7699 REG_EXTENDED | REG_NOSUB) != 0)
7701 rresult = regexec (&r, v1, 0, NULL, 0);
7702 if (rresult == REG_NOMATCH)
7703 fatal ("invalid version number `%s'", v1);
7704 else if (rresult != 0)
7706 rresult = regexec (&r, v2, 0, NULL, 0);
7707 if (rresult == REG_NOMATCH)
7708 fatal ("invalid version number `%s'", v2);
7709 else if (rresult != 0)
7712 return strverscmp (v1, v2);
7716 /* version_compare built-in spec function.
7718 This takes an argument of the following form:
7720 <comparison-op> <arg1> [<arg2>] <switch> <result>
7722 and produces "result" if the comparison evaluates to true,
7723 and nothing if it doesn't.
7725 The supported <comparison-op> values are:
7727 >= true if switch is a later (or same) version than arg1
7729 < true if switch is an earlier version than arg1
7731 >< true if switch is arg1 or later, and earlier than arg2
7732 <> true if switch is earlier than arg1 or is arg2 or later
7734 If the switch is not present, the condition is false unless
7735 the first character of the <comparison-op> is '!'.
7738 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7739 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7742 version_compare_spec_function (int argc, const char **argv)
7746 const char *switch_value = NULL;
7751 fatal ("too few arguments to %%:version-compare");
7752 if (argv[0][0] == '\0')
7754 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
7756 if (argc != nargs + 3)
7757 fatal ("too many arguments to %%:version-compare");
7759 switch_len = strlen (argv[nargs + 1]);
7760 for (i = 0; i < n_switches; i++)
7761 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
7762 && check_live_switch (i, switch_len))
7763 switch_value = switches[i].part1 + switch_len;
7765 if (switch_value == NULL)
7769 comp1 = compare_version_strings (switch_value, argv[1]);
7771 comp2 = compare_version_strings (switch_value, argv[2]);
7773 comp2 = -1; /* This value unused. */
7776 switch (argv[0][0] << 8 | argv[0][1])
7778 case '>' << 8 | '=':
7779 result = comp1 >= 0;
7781 case '!' << 8 | '<':
7782 result = comp1 >= 0 || switch_value == NULL;
7787 case '!' << 8 | '>':
7788 result = comp1 < 0 || switch_value == NULL;
7790 case '>' << 8 | '<':
7791 result = comp1 >= 0 && comp2 < 0;
7793 case '<' << 8 | '>':
7794 result = comp1 < 0 || comp2 >= 0;
7798 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
7803 return argv[nargs + 2];
7806 /* %:include builtin spec function. This differs from %include in that it
7807 can be nested inside a spec, and thus be conditionalized. It takes
7808 one argument, the filename, and looks for it in the startfile path.
7809 The result is always NULL, i.e. an empty expansion. */
7812 include_spec_function (int argc, const char **argv)
7819 file = find_a_file (&startfile_prefixes, argv[0], R_OK, 0);
7820 read_specs (file ? file : argv[0], FALSE);