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 fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
334 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
335 static void display_help (void);
336 static void add_preprocessor_option (const char *, int);
337 static void add_assembler_option (const char *, int);
338 static void add_linker_option (const char *, int);
339 static void process_command (int, const char **);
340 static int execute (void);
341 static void alloc_args (void);
342 static void clear_args (void);
343 static void fatal_error (int);
344 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
345 static void init_gcc_specs (struct obstack *, const char *, const char *,
348 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
349 static const char *convert_filename (const char *, int, int);
352 static const char *if_exists_spec_function (int, const char **);
353 static const char *if_exists_else_spec_function (int, const char **);
354 static const char *replace_outfile_spec_function (int, const char **);
355 static const char *version_compare_spec_function (int, const char **);
356 static const char *include_spec_function (int, const char **);
358 /* The Specs Language
360 Specs are strings containing lines, each of which (if not blank)
361 is made up of a program name, and arguments separated by spaces.
362 The program name must be exact and start from root, since no path
363 is searched and it is unreliable to depend on the current working directory.
364 Redirection of input or output is not supported; the subprograms must
365 accept filenames saying what files to read and write.
367 In addition, the specs can contain %-sequences to substitute variable text
368 or for conditional text. Here is a table of all defined %-sequences.
369 Note that spaces are not generated automatically around the results of
370 expanding these sequences; therefore, you can concatenate them together
371 or with constant text in a single argument.
373 %% substitute one % into the program name or argument.
374 %i substitute the name of the input file being processed.
375 %b substitute the basename of the input file being processed.
376 This is the substring up to (and not including) the last period
377 and not including the directory.
378 %B same as %b, but include the file suffix (text after the last period).
380 substitute a file name that has suffix SUFFIX and is chosen
381 once per compilation, and mark the argument a la %d. To reduce
382 exposure to denial-of-service attacks, the file name is now
383 chosen in a way that is hard to predict even when previously
384 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
385 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
386 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
387 had been pre-processed. Previously, %g was simply substituted
388 with a file name chosen once per compilation, without regard
389 to any appended suffix (which was therefore treated just like
390 ordinary text), making such attacks more likely to succeed.
392 like %g, but if -pipe is in effect, expands simply to "-".
394 like %g, but if -pipe is in effect, expands to nothing. (We have both
395 %| and %m to accommodate differences between system assemblers; see
396 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
398 like %g, but generates a new temporary file name even if %uSUFFIX
401 substitutes the last file name generated with %uSUFFIX, generating a
402 new one if there is no such last file name. In the absence of any
403 %uSUFFIX, this is just like %gSUFFIX, except they don't share
404 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
405 would involve the generation of two distinct file names, one
406 for each `%g.s' and another for each `%U.s'. Previously, %U was
407 simply substituted with a file name chosen for the previous %u,
408 without regard to any appended suffix.
410 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
411 writable, and if save-temps is off; otherwise, substitute the name
412 of a temporary file, just like %u. This temporary file is not
413 meant for communication between processes, but rather as a junk
416 substitutes .SUFFIX for the suffixes of a matched switch's args when
417 it is subsequently output with %*. SUFFIX is terminated by the next
419 %d marks the argument containing or following the %d as a
420 temporary file name, so that that file will be deleted if CC exits
421 successfully. Unlike %g, this contributes no text to the argument.
422 %w marks the argument containing or following the %w as the
423 "output file" of this compilation. This puts the argument
424 into the sequence of arguments that %o will substitute later.
425 %V indicates that this compilation produces no "output file".
427 like %{...} but mark last argument supplied within
428 as a file to be deleted on failure.
429 %o substitutes the names of all the output files, with spaces
430 automatically placed around them. You should write spaces
431 around the %o as well or the results are undefined.
432 %o is for use in the specs for running the linker.
433 Input files whose names have no recognized suffix are not compiled
434 at all, but they are included among the output files, so they will
436 %O substitutes the suffix for object files. Note that this is
437 handled specially when it immediately follows %g, %u, or %U
438 (with or without a suffix argument) because of the need for
439 those to form complete file names. The handling is such that
440 %O is treated exactly as if it had already been substituted,
441 except that %g, %u, and %U do not currently support additional
442 SUFFIX characters following %O as they would following, for
444 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
445 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
446 and -B options) and -imultilib as necessary.
447 %s current argument is the name of a library or startup file of some sort.
448 Search for that file in a standard list of directories
449 and substitute the full name found.
450 %eSTR Print STR as an error message. STR is terminated by a newline.
451 Use this when inconsistent options are detected.
452 %nSTR Print STR as a notice. STR is terminated by a newline.
453 %x{OPTION} Accumulate an option for %X.
454 %X Output the accumulated linker options specified by compilations.
455 %Y Output the accumulated assembler options specified by compilations.
456 %Z Output the accumulated preprocessor options specified by compilations.
457 %a process ASM_SPEC as a spec.
458 This allows config.h to specify part of the spec for running as.
459 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
460 used here. This can be used to run a post-processor after the
461 assembler has done its job.
462 %D Dump out a -L option for each directory in startfile_prefixes.
463 If multilib_dir is set, extra entries are generated with it affixed.
464 %l process LINK_SPEC as a spec.
465 %L process LIB_SPEC as a spec.
466 %G process LIBGCC_SPEC as a spec.
467 %R Output the concatenation of target_system_root and
468 target_sysroot_suffix.
469 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
470 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
471 %C process CPP_SPEC as a spec.
472 %1 process CC1_SPEC as a spec.
473 %2 process CC1PLUS_SPEC as a spec.
474 %* substitute the variable part of a matched option. (See below.)
475 Note that each comma in the substituted string is replaced by
477 %<S remove all occurrences of -S from the command line.
478 Note - this command is position dependent. % commands in the
479 spec string before this one will see -S, % commands in the
480 spec string after this one will not.
481 %<S* remove all occurrences of all switches beginning with -S from the
484 Call the named function FUNCTION, passing it ARGS. ARGS is
485 first processed as a nested spec string, then split into an
486 argument vector in the usual fashion. The function returns
487 a string which is processed as if it had appeared literally
488 as part of the current spec.
489 %{S} substitutes the -S switch, if that switch was given to CC.
490 If that switch was not specified, this substitutes nothing.
491 Here S is a metasyntactic variable.
492 %{S*} substitutes all the switches specified to CC whose names start
493 with -S. This is used for -o, -I, etc; switches that take
494 arguments. CC considers `-o foo' as being one switch whose
495 name starts with `o'. %{o*} would substitute this text,
496 including the space; thus, two arguments would be generated.
497 %{S*&T*} likewise, but preserve order of S and T options (the order
498 of S and T in the spec is not significant). Can be any number
499 of ampersand-separated variables; for each the wild card is
500 optional. Useful for CPP as %{D*&U*&A*}.
502 %{S:X} substitutes X, if the -S switch was given to CC.
503 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
504 %{S*:X} substitutes X if one or more switches whose names start
505 with -S was given to CC. Normally X is substituted only
506 once, no matter how many such switches appeared. However,
507 if %* appears somewhere in X, then X will be substituted
508 once for each matching switch, with the %* replaced by the
509 part of that switch that matched the '*'.
510 %{.S:X} substitutes X, if processing a file with suffix S.
511 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
513 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
514 combined with !, ., and * as above binding stronger than the OR.
515 If %* appears in X, all of the alternatives must be starred, and
516 only the first matching alternative is substituted.
517 %{S:X; if S was given to CC, substitutes X;
518 T:Y; else if T was given to CC, substitutes Y;
519 :D} else substitutes D. There can be as many clauses as you need.
520 This may be combined with ., !, |, and * as above.
522 %(Spec) processes a specification defined in a specs file as *Spec:
523 %[Spec] as above, but put __ around -D arguments
525 The conditional text X in a %{S:X} or similar construct may contain
526 other nested % constructs or spaces, or even newlines. They are
527 processed as usual, as described above. Trailing white space in X is
528 ignored. White space may also appear anywhere on the left side of the
529 colon in these constructs, except between . or * and the corresponding
532 The -O, -f, -m, and -W switches are handled specifically in these
533 constructs. If another value of -O or the negated form of a -f, -m, or
534 -W switch is found later in the command line, the earlier switch
535 value is ignored, except with {S*} where S is just one letter; this
536 passes all matching options.
538 The character | at the beginning of the predicate text is used to indicate
539 that a command should be piped to the following command, but only if -pipe
542 Note that it is built into CC which switches take arguments and which
543 do not. You might think it would be useful to generalize this to
544 allow each compiler's spec to say which switches take arguments. But
545 this cannot be done in a consistent fashion. CC cannot even decide
546 which input files have been specified without knowing which switches
547 take arguments, and it must know which input files to compile in order
548 to tell which compilers to run.
550 CC also knows implicitly that arguments starting in `-l' are to be
551 treated as compiler output files, and passed to the linker in their
552 proper position among the other output files. */
554 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
556 /* config.h can define ASM_SPEC to provide extra args to the assembler
557 or extra switch-translations. */
562 /* config.h can define ASM_FINAL_SPEC to run a post processor after
563 the assembler has run. */
564 #ifndef ASM_FINAL_SPEC
565 #define ASM_FINAL_SPEC ""
568 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
569 or extra switch-translations. */
574 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
575 or extra switch-translations. */
580 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
581 or extra switch-translations. */
583 #define CC1PLUS_SPEC ""
586 /* config.h can define LINK_SPEC to provide extra args to the linker
587 or extra switch-translations. */
592 /* config.h can define LIB_SPEC to override the default libraries. */
594 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
599 /* XXX: valid only for GNU ld */
600 /* XXX: should exactly match hooks provided by libmudflap.a */
601 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
602 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
603 --wrap=mmap --wrap=munmap --wrap=alloca\
604 } %{fmudflapth: --wrap=pthread_create\
605 }} %{fmudflap|fmudflapth: --wrap=main}"
608 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
611 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
614 #if defined(REAL_LIBGCC_SPEC)
615 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
616 #elif defined(LINK_LIBGCC_SPECIAL_1)
617 /* Have gcc do the search for libgcc.a. */
618 #define LIBGCC_SPEC "libgcc.a%s"
620 #define LIBGCC_SPEC "-lgcc"
624 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
625 #ifndef STARTFILE_SPEC
626 #define STARTFILE_SPEC \
627 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
630 /* config.h can define SWITCHES_NEED_SPACES to control which options
631 require spaces between the option and the argument. */
632 #ifndef SWITCHES_NEED_SPACES
633 #define SWITCHES_NEED_SPACES ""
636 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
638 #define ENDFILE_SPEC ""
642 #define LINKER_NAME "collect2"
645 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
647 #ifndef ASM_DEBUG_SPEC
648 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
649 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
650 # define ASM_DEBUG_SPEC \
651 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
652 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
653 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
655 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
656 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
658 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
659 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
663 #ifndef ASM_DEBUG_SPEC
664 # define ASM_DEBUG_SPEC ""
667 /* Here is the spec for running the linker, after compiling all files. */
669 /* This is overridable by the target in case they need to specify the
670 -lgcc and -lc order specially, yet not require them to override all
671 of LINK_COMMAND_SPEC. */
672 #ifndef LINK_GCC_C_SEQUENCE_SPEC
673 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
676 #ifndef LINK_SSP_SPEC
677 #ifdef TARGET_LIBC_PROVIDES_SSP
678 #define LINK_SSP_SPEC "%{fstack-protector:}"
680 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
684 #ifndef LINK_GCC_MATH_SPEC
685 #define LINK_GCC_MATH_SPEC ""
688 #ifndef LINK_PIE_SPEC
690 #define LINK_PIE_SPEC "%{pie:-pie} "
692 #define LINK_PIE_SPEC "%{pie:} "
696 /* -u* was put back because both BSD and SysV seem to support it. */
697 /* %{static:} simply prevents an error message if the target machine
698 doesn't handle -static. */
699 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
700 scripts which exist in user specified directories, or in standard
702 #ifndef LINK_COMMAND_SPEC
703 #define LINK_COMMAND_SPEC "\
704 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
705 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
706 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
707 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
708 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
709 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
710 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_math) %(link_ssp) %(link_gcc_c_sequence)}}\
711 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
714 #ifndef LINK_LIBGCC_SPEC
715 /* Generate -L options for startfile prefix list. */
716 # define LINK_LIBGCC_SPEC "%D"
719 #ifndef STARTFILE_PREFIX_SPEC
720 # define STARTFILE_PREFIX_SPEC ""
724 # define SYSROOT_SPEC "--sysroot=%R"
727 #ifndef SYSROOT_SUFFIX_SPEC
728 # define SYSROOT_SUFFIX_SPEC ""
731 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
732 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
735 static const char *asm_debug;
736 static const char *cpp_spec = CPP_SPEC;
737 static const char *cc1_spec = CC1_SPEC;
738 static const char *cc1plus_spec = CC1PLUS_SPEC;
739 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
740 static const char *link_ssp_spec = LINK_SSP_SPEC;
741 static const char *link_gcc_math_spec = LINK_GCC_MATH_SPEC;
742 static const char *asm_spec = ASM_SPEC;
743 static const char *asm_final_spec = ASM_FINAL_SPEC;
744 static const char *link_spec = LINK_SPEC;
745 static const char *lib_spec = LIB_SPEC;
746 static const char *mfwrap_spec = MFWRAP_SPEC;
747 static const char *mflib_spec = MFLIB_SPEC;
748 static const char *link_gomp_spec = "";
749 static const char *libgcc_spec = LIBGCC_SPEC;
750 static const char *endfile_spec = ENDFILE_SPEC;
751 static const char *startfile_spec = STARTFILE_SPEC;
752 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
753 static const char *linker_name_spec = LINKER_NAME;
754 static const char *link_command_spec = LINK_COMMAND_SPEC;
755 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
756 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
757 static const char *sysroot_spec = SYSROOT_SPEC;
758 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
759 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
761 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
762 There should be no need to override these in target dependent files,
763 but we need to copy them to the specs file so that newer versions
764 of the GCC driver can correctly drive older tool chains with the
765 appropriate -B options. */
767 /* When cpplib handles traditional preprocessing, get rid of this, and
768 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
769 that we default the front end language better. */
770 static const char *trad_capable_cpp =
771 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
773 /* We don't wrap .d files in %W{} since a missing .d file, and
774 therefore no dependency entry, confuses make into thinking a .o
775 file that happens to exist is up-to-date. */
776 static const char *cpp_unique_options =
777 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
778 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
779 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
780 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
781 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
782 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
783 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
784 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
785 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
788 /* This contains cpp options which are common with cc1_options and are passed
789 only when preprocessing only to avoid duplication. We pass the cc1 spec
790 options to the preprocessor so that it the cc1 spec may manipulate
791 options used to set target flags. Those special target flags settings may
792 in turn cause preprocessor symbols to be defined specially. */
793 static const char *cpp_options =
794 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
795 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
796 %{undef} %{save-temps:-fpch-preprocess}";
798 /* This contains cpp options which are not passed when the preprocessor
799 output will be used by another program. */
800 static const char *cpp_debug_options = "%{d*}";
802 /* NB: This is shared amongst all front-ends. */
803 static const char *cc1_options =
804 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
805 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
806 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
807 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
808 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
809 %{Qn:-fno-ident} %{--help:--help}\
810 %{--target-help:--target-help}\
811 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
812 %{fsyntax-only:-o %j} %{-param*}\
813 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
814 %{coverage:-fprofile-arcs -ftest-coverage}";
816 static const char *asm_options =
817 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
819 static const char *invoke_as =
820 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
821 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
823 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
826 /* Some compilers have limits on line lengths, and the multilib_select
827 and/or multilib_matches strings can be very long, so we build them at
829 static struct obstack multilib_obstack;
830 static const char *multilib_select;
831 static const char *multilib_matches;
832 static const char *multilib_defaults;
833 static const char *multilib_exclusions;
835 /* Check whether a particular argument is a default argument. */
837 #ifndef MULTILIB_DEFAULTS
838 #define MULTILIB_DEFAULTS { "" }
841 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
843 #ifndef DRIVER_SELF_SPECS
844 #define DRIVER_SELF_SPECS ""
847 /* Adding -fopenmp should imply pthreads. This is particularly important
848 for targets that use different start files and suchlike. */
849 #ifndef GOMP_SELF_SPECS
850 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
853 static const char *const driver_self_specs[] = {
854 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
857 #ifndef OPTION_DEFAULT_SPECS
858 #define OPTION_DEFAULT_SPECS { "", "" }
867 static const struct default_spec
868 option_default_specs[] = { OPTION_DEFAULT_SPECS };
872 struct user_specs *next;
873 const char *filename;
876 static struct user_specs *user_specs_head, *user_specs_tail;
878 #ifndef SWITCH_TAKES_ARG
879 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
882 #ifndef WORD_SWITCH_TAKES_ARG
883 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
886 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
887 /* This defines which switches stop a full compilation. */
888 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
889 ((CHAR) == 'c' || (CHAR) == 'S')
891 #ifndef SWITCH_CURTAILS_COMPILATION
892 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
893 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
897 /* Record the mapping from file suffixes for compilation specs. */
901 const char *suffix; /* Use this compiler for input files
902 whose names end in this suffix. */
904 const char *spec; /* To use this compiler, run this spec. */
906 const char *cpp_spec; /* If non-NULL, substitute this spec
907 for `%C', rather than the usual
909 const int combinable; /* If nonzero, compiler can deal with
910 multiple source files at once (IMA). */
911 const int needs_preprocessing; /* If nonzero, source files need to
912 be run through a preprocessor. */
915 /* Pointer to a vector of `struct compiler' that gives the spec for
916 compiling a file, based on its suffix.
917 A file that does not end in any of these suffixes will be passed
918 unchanged to the loader and nothing else will be done to it.
920 An entry containing two 0s is used to terminate the vector.
922 If multiple entries match a file, the last matching one is used. */
924 static struct compiler *compilers;
926 /* Number of entries in `compilers', not counting the null terminator. */
928 static int n_compilers;
930 /* The default list of file name suffixes and their compilation specs. */
932 static const struct compiler default_compilers[] =
934 /* Add lists of suffixes of known languages here. If those languages
935 were not present when we built the driver, we will hit these copies
936 and be given a more meaningful error than "file not used since
937 linking is not done". */
938 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
939 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
940 {".mii", "#Objective-C++", 0, 0, 0},
941 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
942 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
943 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
944 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
945 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
946 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
947 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
948 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
949 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
950 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
951 {".r", "#Ratfor", 0, 0, 0},
952 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
953 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
954 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
955 /* Next come the entries for C. */
956 {".c", "@c", 0, 1, 1},
958 /* cc1 has an integrated ISO C preprocessor. We should invoke the
959 external preprocessor if -save-temps is given. */
960 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
962 %{traditional|ftraditional:\
963 %eGNU C no longer supports -traditional without -E}\
965 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
966 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
967 cc1 -fpreprocessed %{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)}} \
973 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
974 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
975 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
976 cc1 %(cpp_unique_options) %(cc1_options)}}\
977 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
979 "%{!E:%e-E or -x required when input is from standard input}\
980 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
981 {".h", "@c-header", 0, 0, 0},
983 /* cc1 has an integrated ISO C preprocessor. We should invoke the
984 external preprocessor if -save-temps is given. */
985 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
987 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
988 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
989 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
991 -o %g.s %{!o*:--output-pch=%i.gch}\
992 %W{o*:--output-pch=%*}%V}\
993 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
994 cc1 %(cpp_unique_options) %(cc1_options)\
995 -o %g.s %{!o*:--output-pch=%i.gch}\
996 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
997 {".i", "@cpp-output", 0, 1, 0},
999 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1000 {".s", "@assembler", 0, 1, 0},
1002 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1003 {".S", "@assembler-with-cpp", 0, 1, 0},
1004 {"@assembler-with-cpp",
1005 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1006 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1007 %{E|M|MM:%(cpp_debug_options)}\
1008 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1009 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1011 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1012 %{E|M|MM:%(cpp_debug_options)}\
1013 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1014 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1019 /* Mark end of table. */
1023 /* Number of elements in default_compilers, not counting the terminator. */
1025 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1027 /* A vector of options to give to the linker.
1028 These options are accumulated by %x,
1029 and substituted into the linker command with %X. */
1030 static int n_linker_options;
1031 static char **linker_options;
1033 /* A vector of options to give to the assembler.
1034 These options are accumulated by -Wa,
1035 and substituted into the assembler command with %Y. */
1036 static int n_assembler_options;
1037 static char **assembler_options;
1039 /* A vector of options to give to the preprocessor.
1040 These options are accumulated by -Wp,
1041 and substituted into the preprocessor command with %Z. */
1042 static int n_preprocessor_options;
1043 static char **preprocessor_options;
1045 /* Define how to map long options into short ones. */
1047 /* This structure describes one mapping. */
1050 /* The long option's name. */
1051 const char *const name;
1052 /* The equivalent short option. */
1053 const char *const equivalent;
1054 /* Argument info. A string of flag chars; NULL equals no options.
1055 a => argument required.
1056 o => argument optional.
1057 j => join argument to equivalent, making one word.
1058 * => require other text after NAME as an argument. */
1059 const char *const arg_info;
1062 /* This is the table of mappings. Mappings are tried sequentially
1063 for each option encountered; the first one that matches, wins. */
1065 static const struct option_map option_map[] =
1067 {"--all-warnings", "-Wall", 0},
1068 {"--ansi", "-ansi", 0},
1069 {"--assemble", "-S", 0},
1070 {"--assert", "-A", "a"},
1071 {"--classpath", "-fclasspath=", "aj"},
1072 {"--bootclasspath", "-fbootclasspath=", "aj"},
1073 {"--CLASSPATH", "-fclasspath=", "aj"},
1074 {"--combine", "-combine", 0},
1075 {"--comments", "-C", 0},
1076 {"--comments-in-macros", "-CC", 0},
1077 {"--compile", "-c", 0},
1078 {"--debug", "-g", "oj"},
1079 {"--define-macro", "-D", "aj"},
1080 {"--dependencies", "-M", 0},
1081 {"--dump", "-d", "a"},
1082 {"--dumpbase", "-dumpbase", "a"},
1083 {"--encoding", "-fencoding=", "aj"},
1084 {"--entry", "-e", 0},
1085 {"--extra-warnings", "-W", 0},
1086 {"--extdirs", "-fextdirs=", "aj"},
1087 {"--for-assembler", "-Wa", "a"},
1088 {"--for-linker", "-Xlinker", "a"},
1089 {"--force-link", "-u", "a"},
1090 {"--coverage", "-coverage", 0},
1091 {"--imacros", "-imacros", "a"},
1092 {"--include", "-include", "a"},
1093 {"--include-barrier", "-I-", 0},
1094 {"--include-directory", "-I", "aj"},
1095 {"--include-directory-after", "-idirafter", "a"},
1096 {"--include-prefix", "-iprefix", "a"},
1097 {"--include-with-prefix", "-iwithprefix", "a"},
1098 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1099 {"--include-with-prefix-after", "-iwithprefix", "a"},
1100 {"--language", "-x", "a"},
1101 {"--library-directory", "-L", "a"},
1102 {"--machine", "-m", "aj"},
1103 {"--machine-", "-m", "*j"},
1104 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1105 {"--no-line-commands", "-P", 0},
1106 {"--no-precompiled-includes", "-noprecomp", 0},
1107 {"--no-standard-includes", "-nostdinc", 0},
1108 {"--no-standard-libraries", "-nostdlib", 0},
1109 {"--no-warnings", "-w", 0},
1110 {"--optimize", "-O", "oj"},
1111 {"--output", "-o", "a"},
1112 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1113 {"--param", "--param", "a"},
1114 {"--pass-exit-codes", "-pass-exit-codes", 0},
1115 {"--pedantic", "-pedantic", 0},
1116 {"--pedantic-errors", "-pedantic-errors", 0},
1117 {"--pie", "-pie", 0},
1118 {"--pipe", "-pipe", 0},
1119 {"--prefix", "-B", "a"},
1120 {"--preprocess", "-E", 0},
1121 {"--print-search-dirs", "-print-search-dirs", 0},
1122 {"--print-file-name", "-print-file-name=", "aj"},
1123 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1124 {"--print-missing-file-dependencies", "-MG", 0},
1125 {"--print-multi-lib", "-print-multi-lib", 0},
1126 {"--print-multi-directory", "-print-multi-directory", 0},
1127 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1128 {"--print-prog-name", "-print-prog-name=", "aj"},
1129 {"--profile", "-p", 0},
1130 {"--profile-blocks", "-a", 0},
1131 {"--quiet", "-q", 0},
1132 {"--resource", "-fcompile-resource=", "aj"},
1133 {"--save-temps", "-save-temps", 0},
1134 {"--shared", "-shared", 0},
1135 {"--silent", "-q", 0},
1136 {"--specs", "-specs=", "aj"},
1137 {"--static", "-static", 0},
1138 {"--std", "-std=", "aj"},
1139 {"--symbolic", "-symbolic", 0},
1140 {"--sysroot", "--sysroot=", "aj"},
1141 {"--time", "-time", 0},
1142 {"--trace-includes", "-H", 0},
1143 {"--traditional", "-traditional", 0},
1144 {"--traditional-cpp", "-traditional-cpp", 0},
1145 {"--trigraphs", "-trigraphs", 0},
1146 {"--undefine-macro", "-U", "aj"},
1147 {"--user-dependencies", "-MM", 0},
1148 {"--verbose", "-v", 0},
1149 {"--warn-", "-W", "*j"},
1150 {"--write-dependencies", "-MD", 0},
1151 {"--write-user-dependencies", "-MMD", 0},
1156 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1157 static const struct {
1158 const char *const option_found;
1159 const char *const replacements;
1160 } target_option_translations[] =
1162 TARGET_OPTION_TRANSLATE_TABLE,
1167 /* Translate the options described by *ARGCP and *ARGVP.
1168 Make a new vector and store it back in *ARGVP,
1169 and store its length in *ARGVC. */
1172 translate_options (int *argcp, const char *const **argvp)
1176 const char *const *argv = *argvp;
1177 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1178 const char **newv = xmalloc (newvsize);
1182 newv[newindex++] = argv[i++];
1186 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1190 target_option_translations[tott_idx].option_found;
1193 if (strcmp (target_option_translations[tott_idx].option_found,
1200 for (sp = target_option_translations[tott_idx].replacements;
1207 newvsize += spaces * sizeof (const char *);
1208 newv = xrealloc (newv, newvsize);
1210 sp = target_option_translations[tott_idx].replacements;
1219 newv[newindex++] = np;
1220 while (*np != ' ' && *np)
1231 if (target_option_translations[tott_idx].option_found)
1235 /* Translate -- options. */
1236 if (argv[i][0] == '-' && argv[i][1] == '-')
1239 /* Find a mapping that applies to this option. */
1240 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1242 size_t optlen = strlen (option_map[j].name);
1243 size_t arglen = strlen (argv[i]);
1244 size_t complen = arglen > optlen ? optlen : arglen;
1245 const char *arginfo = option_map[j].arg_info;
1250 if (!strncmp (argv[i], option_map[j].name, complen))
1252 const char *arg = 0;
1254 if (arglen < optlen)
1257 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1258 if (strlen (option_map[k].name) >= arglen
1259 && !strncmp (argv[i], option_map[k].name, arglen))
1261 error ("ambiguous abbreviation %s", argv[i]);
1265 if (k != ARRAY_SIZE (option_map))
1269 if (arglen > optlen)
1271 /* If the option has an argument, accept that. */
1272 if (argv[i][optlen] == '=')
1273 arg = argv[i] + optlen + 1;
1275 /* If this mapping requires extra text at end of name,
1276 accept that as "argument". */
1277 else if (strchr (arginfo, '*') != 0)
1278 arg = argv[i] + optlen;
1280 /* Otherwise, extra text at end means mismatch.
1281 Try other mappings. */
1286 else if (strchr (arginfo, '*') != 0)
1288 error ("incomplete '%s' option", option_map[j].name);
1292 /* Handle arguments. */
1293 if (strchr (arginfo, 'a') != 0)
1299 error ("missing argument to '%s' option",
1300 option_map[j].name);
1307 else if (strchr (arginfo, '*') != 0)
1309 else if (strchr (arginfo, 'o') == 0)
1312 error ("extraneous argument to '%s' option",
1313 option_map[j].name);
1317 /* Store the translation as one argv elt or as two. */
1318 if (arg != 0 && strchr (arginfo, 'j') != 0)
1319 newv[newindex++] = concat (option_map[j].equivalent, arg,
1323 newv[newindex++] = option_map[j].equivalent;
1324 newv[newindex++] = arg;
1327 newv[newindex++] = option_map[j].equivalent;
1335 /* Handle old-fashioned options--just copy them through,
1336 with their arguments. */
1337 else if (argv[i][0] == '-')
1339 const char *p = argv[i] + 1;
1343 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1344 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1345 else if (WORD_SWITCH_TAKES_ARG (p))
1346 nskip += WORD_SWITCH_TAKES_ARG (p);
1347 else if ((c == 'B' || c == 'b' || c == 'x')
1350 else if (! strcmp (p, "Xlinker"))
1352 else if (! strcmp (p, "Xpreprocessor"))
1354 else if (! strcmp (p, "Xassembler"))
1357 /* Watch out for an option at the end of the command line that
1358 is missing arguments, and avoid skipping past the end of the
1360 if (nskip + i > argc)
1365 newv[newindex++] = argv[i++];
1370 /* Ordinary operands, or +e options. */
1371 newv[newindex++] = argv[i++];
1381 skip_whitespace (char *p)
1385 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1386 be considered whitespace. */
1387 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1389 else if (*p == '\n' || *p == ' ' || *p == '\t')
1403 /* Structures to keep track of prefixes to try when looking for files. */
1407 const char *prefix; /* String to prepend to the path. */
1408 struct prefix_list *next; /* Next in linked list. */
1409 int require_machine_suffix; /* Don't use without machine_suffix. */
1410 /* 2 means try both machine_suffix and just_machine_suffix. */
1411 int priority; /* Sort key - priority within list. */
1412 int os_multilib; /* 1 if OS multilib scheme should be used,
1413 0 for GCC multilib scheme. */
1418 struct prefix_list *plist; /* List of prefixes to try */
1419 int max_len; /* Max length of a prefix in PLIST */
1420 const char *name; /* Name of this list (used in config stuff) */
1423 /* List of prefixes to try when looking for executables. */
1425 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1427 /* List of prefixes to try when looking for startup (crt0) files. */
1429 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1431 /* List of prefixes to try when looking for include files. */
1433 static struct path_prefix include_prefixes = { 0, 0, "include" };
1435 /* Suffix to attach to directories searched for commands.
1436 This looks like `MACHINE/VERSION/'. */
1438 static const char *machine_suffix = 0;
1440 /* Suffix to attach to directories searched for commands.
1441 This is just `MACHINE/'. */
1443 static const char *just_machine_suffix = 0;
1445 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1447 static const char *gcc_exec_prefix;
1449 /* Adjusted value of standard_libexec_prefix. */
1451 static const char *gcc_libexec_prefix;
1453 /* Default prefixes to attach to command names. */
1455 #ifndef STANDARD_STARTFILE_PREFIX_1
1456 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1458 #ifndef STANDARD_STARTFILE_PREFIX_2
1459 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1462 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1463 #undef MD_EXEC_PREFIX
1464 #undef MD_STARTFILE_PREFIX
1465 #undef MD_STARTFILE_PREFIX_1
1468 /* If no prefixes defined, use the null string, which will disable them. */
1469 #ifndef MD_EXEC_PREFIX
1470 #define MD_EXEC_PREFIX ""
1472 #ifndef MD_STARTFILE_PREFIX
1473 #define MD_STARTFILE_PREFIX ""
1475 #ifndef MD_STARTFILE_PREFIX_1
1476 #define MD_STARTFILE_PREFIX_1 ""
1479 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1480 static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
1481 static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
1482 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1484 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1485 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1486 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1487 static const char *const standard_startfile_prefix_1
1488 = STANDARD_STARTFILE_PREFIX_1;
1489 static const char *const standard_startfile_prefix_2
1490 = STANDARD_STARTFILE_PREFIX_2;
1492 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1493 static const char *tooldir_prefix;
1495 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1497 static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1499 /* Subdirectory to use for locating libraries. Set by
1500 set_multilib_dir based on the compilation options. */
1502 static const char *multilib_dir;
1504 /* Subdirectory to use for locating libraries in OS conventions. Set by
1505 set_multilib_dir based on the compilation options. */
1507 static const char *multilib_os_dir;
1509 /* Structure to keep track of the specs that have been defined so far.
1510 These are accessed using %(specname) or %[specname] in a compiler
1515 /* The following 2 fields must be first */
1516 /* to allow EXTRA_SPECS to be initialized */
1517 const char *name; /* name of the spec. */
1518 const char *ptr; /* available ptr if no static pointer */
1520 /* The following fields are not initialized */
1521 /* by EXTRA_SPECS */
1522 const char **ptr_spec; /* pointer to the spec itself. */
1523 struct spec_list *next; /* Next spec in linked list. */
1524 int name_len; /* length of the name */
1525 int alloc_p; /* whether string was allocated */
1528 #define INIT_STATIC_SPEC(NAME,PTR) \
1529 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1531 /* List of statically defined specs. */
1532 static struct spec_list static_specs[] =
1534 INIT_STATIC_SPEC ("asm", &asm_spec),
1535 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1536 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1537 INIT_STATIC_SPEC ("asm_options", &asm_options),
1538 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1539 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1540 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1541 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1542 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1543 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1544 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1545 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1546 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1547 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1548 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1549 INIT_STATIC_SPEC ("link_gcc_math", &link_gcc_math_spec),
1550 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1551 INIT_STATIC_SPEC ("link", &link_spec),
1552 INIT_STATIC_SPEC ("lib", &lib_spec),
1553 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1554 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1555 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1556 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1557 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1558 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1559 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1560 INIT_STATIC_SPEC ("version", &compiler_version),
1561 INIT_STATIC_SPEC ("multilib", &multilib_select),
1562 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1563 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1564 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1565 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1566 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1567 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1568 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1569 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1570 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1571 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1572 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1573 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1574 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1575 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1578 #ifdef EXTRA_SPECS /* additional specs needed */
1579 /* Structure to keep track of just the first two args of a spec_list.
1580 That is all that the EXTRA_SPECS macro gives us. */
1583 const char *const name;
1584 const char *const ptr;
1587 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1588 static struct spec_list *extra_specs = (struct spec_list *) 0;
1591 /* List of dynamically allocates specs that have been defined so far. */
1593 static struct spec_list *specs = (struct spec_list *) 0;
1595 /* List of static spec functions. */
1597 static const struct spec_function static_spec_functions[] =
1599 { "if-exists", if_exists_spec_function },
1600 { "if-exists-else", if_exists_else_spec_function },
1601 { "replace-outfile", replace_outfile_spec_function },
1602 { "version-compare", version_compare_spec_function },
1603 { "include", include_spec_function },
1607 static int processing_spec_function;
1609 /* Add appropriate libgcc specs to OBSTACK, taking into account
1610 various permutations of -shared-libgcc, -shared, and such. */
1612 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1614 #ifndef USE_LD_AS_NEEDED
1615 #define USE_LD_AS_NEEDED 0
1619 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1620 const char *static_name, const char *eh_name)
1624 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1625 "%{!static:%{!static-libgcc:"
1626 #if USE_LD_AS_NEEDED
1627 "%{!shared-libgcc:",
1628 static_name, " --as-needed ", shared_name, " --no-as-needed"
1631 shared_name, "%{!shared: ", static_name, "}"
1635 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1636 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1640 "%{shared-libgcc:", shared_name, "}"
1641 "%{!shared-libgcc:", static_name, "}"
1644 "%{shared:", shared_name, "}"
1649 obstack_grow (obstack, buf, strlen (buf));
1652 #endif /* ENABLE_SHARED_LIBGCC */
1654 /* Initialize the specs lookup routines. */
1659 struct spec_list *next = (struct spec_list *) 0;
1660 struct spec_list *sl = (struct spec_list *) 0;
1664 return; /* Already initialized. */
1667 notice ("Using built-in specs.\n");
1670 extra_specs = xcalloc (sizeof (struct spec_list),
1671 ARRAY_SIZE (extra_specs_1));
1673 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1675 sl = &extra_specs[i];
1676 sl->name = extra_specs_1[i].name;
1677 sl->ptr = extra_specs_1[i].ptr;
1679 sl->name_len = strlen (sl->name);
1680 sl->ptr_spec = &sl->ptr;
1685 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1686 on ?: in file-scope variable initializations. */
1687 asm_debug = ASM_DEBUG_SPEC;
1689 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1691 sl = &static_specs[i];
1696 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1697 /* ??? If neither -shared-libgcc nor --static-libgcc was
1698 seen, then we should be making an educated guess. Some proposed
1699 heuristics for ELF include:
1701 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1702 program will be doing dynamic loading, which will likely
1703 need the shared libgcc.
1705 (2) If "-ldl", then it's also a fair bet that we're doing
1708 (3) For each ET_DYN we're linking against (either through -lfoo
1709 or /some/path/foo.so), check to see whether it or one of
1710 its dependencies depends on a shared libgcc.
1714 If the runtime is fixed to look for program headers instead
1715 of calling __register_frame_info at all, for each object,
1716 use the shared libgcc if any EH symbol referenced.
1718 If crtstuff is fixed to not invoke __register_frame_info
1719 automatically, for each object, use the shared libgcc if
1720 any non-empty unwind section found.
1722 Doing any of this probably requires invoking an external program to
1723 do the actual object file scanning. */
1725 const char *p = libgcc_spec;
1728 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1729 when given the proper command line arguments. */
1732 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1734 init_gcc_specs (&obstack,
1736 #ifdef USE_LIBUNWIND_EXCEPTIONS
1742 #ifdef USE_LIBUNWIND_EXCEPTIONS
1743 # ifdef HAVE_LD_STATIC_DYNAMIC
1744 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1754 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1756 /* Ug. We don't know shared library extensions. Hope that
1757 systems that use this form don't do shared libraries. */
1758 init_gcc_specs (&obstack,
1762 #ifdef USE_LIBUNWIND_EXCEPTIONS
1771 obstack_1grow (&obstack, *p);
1772 in_sep = (*p == ' ');
1777 obstack_1grow (&obstack, '\0');
1778 libgcc_spec = XOBFINISH (&obstack, const char *);
1781 #ifdef USE_AS_TRADITIONAL_FORMAT
1782 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1784 static const char tf[] = "--traditional-format ";
1785 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1786 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1787 asm_spec = XOBFINISH (&obstack, const char *);
1791 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1792 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1793 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1794 link_spec = XOBFINISH (&obstack, const char *);
1800 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1801 removed; If the spec starts with a + then SPEC is added to the end of the
1805 set_spec (const char *name, const char *spec)
1807 struct spec_list *sl;
1808 const char *old_spec;
1809 int name_len = strlen (name);
1812 /* If this is the first call, initialize the statically allocated specs. */
1815 struct spec_list *next = (struct spec_list *) 0;
1816 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1818 sl = &static_specs[i];
1825 /* See if the spec already exists. */
1826 for (sl = specs; sl; sl = sl->next)
1827 if (name_len == sl->name_len && !strcmp (sl->name, name))
1832 /* Not found - make it. */
1833 sl = XNEW (struct spec_list);
1834 sl->name = xstrdup (name);
1835 sl->name_len = name_len;
1836 sl->ptr_spec = &sl->ptr;
1838 *(sl->ptr_spec) = "";
1843 old_spec = *(sl->ptr_spec);
1844 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1845 ? concat (old_spec, spec + 1, NULL)
1850 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1853 /* Free the old spec. */
1854 if (old_spec && sl->alloc_p)
1855 free ((void *) old_spec);
1860 /* Accumulate a command (program name and args), and run it. */
1862 /* Vector of pointers to arguments in the current line of specifications. */
1864 static const char **argbuf;
1866 /* Number of elements allocated in argbuf. */
1868 static int argbuf_length;
1870 /* Number of elements in argbuf currently in use (containing args). */
1872 static int argbuf_index;
1874 /* Position in the argbuf array containing the name of the output file
1875 (the value associated with the "-o" flag). */
1877 static int have_o_argbuf_index = 0;
1879 /* Were the options -c or -S passed. */
1880 static int have_c = 0;
1882 /* Was the option -o passed. */
1883 static int have_o = 0;
1885 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1886 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1889 static struct temp_name {
1890 const char *suffix; /* suffix associated with the code. */
1891 int length; /* strlen (suffix). */
1892 int unique; /* Indicates whether %g or %u/%U was used. */
1893 const char *filename; /* associated filename. */
1894 int filename_length; /* strlen (filename). */
1895 struct temp_name *next;
1898 /* Number of commands executed so far. */
1900 static int execution_count;
1902 /* Number of commands that exited with a signal. */
1904 static int signal_count;
1906 /* Name with which this program was invoked. */
1908 static const char *programname;
1910 /* Allocate the argument vector. */
1916 argbuf = XNEWVEC (const char *, argbuf_length);
1919 /* Clear out the vector of arguments (after a command is executed). */
1927 /* Add one argument to the vector at the end.
1928 This is done when a space is seen or at the end of the line.
1929 If DELETE_ALWAYS is nonzero, the arg is a filename
1930 and the file should be deleted eventually.
1931 If DELETE_FAILURE is nonzero, the arg is a filename
1932 and the file should be deleted if this compilation fails. */
1935 store_arg (const char *arg, int delete_always, int delete_failure)
1937 if (argbuf_index + 1 == argbuf_length)
1938 argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
1940 argbuf[argbuf_index++] = arg;
1941 argbuf[argbuf_index] = 0;
1943 if (strcmp (arg, "-o") == 0)
1944 have_o_argbuf_index = argbuf_index;
1945 if (delete_always || delete_failure)
1946 record_temp_file (arg, delete_always, delete_failure);
1949 /* Load specs from a file name named FILENAME, replacing occurrences of
1950 various different types of line-endings, \r\n, \n\r and just \r, with
1954 load_specs (const char *filename)
1958 struct stat statbuf;
1965 notice ("Reading specs from %s\n", filename);
1967 /* Open and stat the file. */
1968 desc = open (filename, O_RDONLY, 0);
1970 pfatal_with_name (filename);
1971 if (stat (filename, &statbuf) < 0)
1972 pfatal_with_name (filename);
1974 /* Read contents of file into BUFFER. */
1975 buffer = XNEWVEC (char, statbuf.st_size + 1);
1976 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1978 pfatal_with_name (filename);
1979 buffer[readlen] = 0;
1982 specs = XNEWVEC (char, readlen + 1);
1984 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1990 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1992 else if (*(buffer_p + 1) == '\n') /* \r\n */
2006 /* Read compilation specs from a file named FILENAME,
2007 replacing the default ones.
2009 A suffix which starts with `*' is a definition for
2010 one of the machine-specific sub-specs. The "suffix" should be
2011 *asm, *cc1, *cpp, *link, *startfile, etc.
2012 The corresponding spec is stored in asm_spec, etc.,
2013 rather than in the `compilers' vector.
2015 Anything invalid in the file is a fatal error. */
2018 read_specs (const char *filename, int main_p)
2023 buffer = load_specs (filename);
2025 /* Scan BUFFER for specs, putting them in the vector. */
2031 char *in, *out, *p1, *p2, *p3;
2033 /* Advance P in BUFFER to the next nonblank nocomment line. */
2034 p = skip_whitespace (p);
2038 /* Is this a special command that starts with '%'? */
2039 /* Don't allow this for the main specs file, since it would
2040 encourage people to overwrite it. */
2041 if (*p == '%' && !main_p)
2044 while (*p && *p != '\n')
2050 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2051 && (p1[sizeof "%include" - 1] == ' '
2052 || p1[sizeof "%include" - 1] == '\t'))
2056 p1 += sizeof ("%include");
2057 while (*p1 == ' ' || *p1 == '\t')
2060 if (*p1++ != '<' || p[-2] != '>')
2061 fatal ("specs %%include syntax malformed after %ld characters",
2062 (long) (p1 - buffer + 1));
2065 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2066 read_specs (new_filename ? new_filename : p1, FALSE);
2069 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2070 && (p1[sizeof "%include_noerr" - 1] == ' '
2071 || p1[sizeof "%include_noerr" - 1] == '\t'))
2075 p1 += sizeof "%include_noerr";
2076 while (*p1 == ' ' || *p1 == '\t')
2079 if (*p1++ != '<' || p[-2] != '>')
2080 fatal ("specs %%include syntax malformed after %ld characters",
2081 (long) (p1 - buffer + 1));
2084 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2086 read_specs (new_filename, FALSE);
2087 else if (verbose_flag)
2088 notice ("could not find specs file %s\n", p1);
2091 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2092 && (p1[sizeof "%rename" - 1] == ' '
2093 || p1[sizeof "%rename" - 1] == '\t'))
2096 struct spec_list *sl;
2097 struct spec_list *newsl;
2099 /* Get original name. */
2100 p1 += sizeof "%rename";
2101 while (*p1 == ' ' || *p1 == '\t')
2104 if (! ISALPHA ((unsigned char) *p1))
2105 fatal ("specs %%rename syntax malformed after %ld characters",
2106 (long) (p1 - buffer));
2109 while (*p2 && !ISSPACE ((unsigned char) *p2))
2112 if (*p2 != ' ' && *p2 != '\t')
2113 fatal ("specs %%rename syntax malformed after %ld characters",
2114 (long) (p2 - buffer));
2118 while (*p2 == ' ' || *p2 == '\t')
2121 if (! ISALPHA ((unsigned char) *p2))
2122 fatal ("specs %%rename syntax malformed after %ld characters",
2123 (long) (p2 - buffer));
2125 /* Get new spec name. */
2127 while (*p3 && !ISSPACE ((unsigned char) *p3))
2131 fatal ("specs %%rename syntax malformed after %ld characters",
2132 (long) (p3 - buffer));
2135 for (sl = specs; sl; sl = sl->next)
2136 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2140 fatal ("specs %s spec was not found to be renamed", p1);
2142 if (strcmp (p1, p2) == 0)
2145 for (newsl = specs; newsl; newsl = newsl->next)
2146 if (strcmp (newsl->name, p2) == 0)
2147 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2152 notice ("rename spec %s to %s\n", p1, p2);
2154 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2158 set_spec (p2, *(sl->ptr_spec));
2160 free ((void *) *(sl->ptr_spec));
2162 *(sl->ptr_spec) = "";
2167 fatal ("specs unknown %% command after %ld characters",
2168 (long) (p1 - buffer));
2171 /* Find the colon that should end the suffix. */
2173 while (*p1 && *p1 != ':' && *p1 != '\n')
2176 /* The colon shouldn't be missing. */
2178 fatal ("specs file malformed after %ld characters",
2179 (long) (p1 - buffer));
2181 /* Skip back over trailing whitespace. */
2183 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2186 /* Copy the suffix to a string. */
2187 suffix = save_string (p, p2 - p);
2188 /* Find the next line. */
2189 p = skip_whitespace (p1 + 1);
2191 fatal ("specs file malformed after %ld characters",
2192 (long) (p - buffer));
2195 /* Find next blank line or end of string. */
2196 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2199 /* Specs end at the blank line and do not include the newline. */
2200 spec = save_string (p, p1 - p);
2203 /* Delete backslash-newline sequences from the spec. */
2208 if (in[0] == '\\' && in[1] == '\n')
2210 else if (in[0] == '#')
2211 while (*in && *in != '\n')
2219 if (suffix[0] == '*')
2221 if (! strcmp (suffix, "*link_command"))
2222 link_command_spec = spec;
2224 set_spec (suffix + 1, spec);
2228 /* Add this pair to the vector. */
2230 = xrealloc (compilers,
2231 (n_compilers + 2) * sizeof (struct compiler));
2233 compilers[n_compilers].suffix = suffix;
2234 compilers[n_compilers].spec = spec;
2236 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2240 link_command_spec = spec;
2243 if (link_command_spec == 0)
2244 fatal ("spec file has no spec for linking");
2247 /* Record the names of temporary files we tell compilers to write,
2248 and delete them at the end of the run. */
2250 /* This is the common prefix we use to make temp file names.
2251 It is chosen once for each run of this program.
2252 It is substituted into a spec by %g or %j.
2253 Thus, all temp file names contain this prefix.
2254 In practice, all temp file names start with this prefix.
2256 This prefix comes from the envvar TMPDIR if it is defined;
2257 otherwise, from the P_tmpdir macro if that is defined;
2258 otherwise, in /usr/tmp or /tmp;
2259 or finally the current directory if all else fails. */
2261 static const char *temp_filename;
2263 /* Length of the prefix. */
2265 static int temp_filename_length;
2267 /* Define the list of temporary files to delete. */
2272 struct temp_file *next;
2275 /* Queue of files to delete on success or failure of compilation. */
2276 static struct temp_file *always_delete_queue;
2277 /* Queue of files to delete on failure of compilation. */
2278 static struct temp_file *failure_delete_queue;
2280 /* Record FILENAME as a file to be deleted automatically.
2281 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2282 otherwise delete it in any case.
2283 FAIL_DELETE nonzero means delete it if a compilation step fails;
2284 otherwise delete it in any case. */
2287 record_temp_file (const char *filename, int always_delete, int fail_delete)
2289 char *const name = xstrdup (filename);
2293 struct temp_file *temp;
2294 for (temp = always_delete_queue; temp; temp = temp->next)
2295 if (! strcmp (name, temp->name))
2298 temp = XNEW (struct temp_file);
2299 temp->next = always_delete_queue;
2301 always_delete_queue = temp;
2308 struct temp_file *temp;
2309 for (temp = failure_delete_queue; temp; temp = temp->next)
2310 if (! strcmp (name, temp->name))
2313 temp = XNEW (struct temp_file);
2314 temp->next = failure_delete_queue;
2316 failure_delete_queue = temp;
2322 /* Delete all the temporary files whose names we previously recorded. */
2324 #ifndef DELETE_IF_ORDINARY
2325 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2328 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2329 if (unlink (NAME) < 0) \
2331 perror_with_name (NAME); \
2336 delete_if_ordinary (const char *name)
2342 printf ("Delete %s? (y or n) ", name);
2346 while ((c = getchar ()) != '\n' && c != EOF)
2349 if (i == 'y' || i == 'Y')
2351 DELETE_IF_ORDINARY (name, st, verbose_flag);
2355 delete_temp_files (void)
2357 struct temp_file *temp;
2359 for (temp = always_delete_queue; temp; temp = temp->next)
2360 delete_if_ordinary (temp->name);
2361 always_delete_queue = 0;
2364 /* Delete all the files to be deleted on error. */
2367 delete_failure_queue (void)
2369 struct temp_file *temp;
2371 for (temp = failure_delete_queue; temp; temp = temp->next)
2372 delete_if_ordinary (temp->name);
2376 clear_failure_queue (void)
2378 failure_delete_queue = 0;
2381 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2383 If DO_MULTI is true iterate over the paths twice, first with multilib
2384 suffix then without, otherwise iterate over the paths once without
2385 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2386 to avoid visiting the same path twice, but we could do better. For
2387 instance, /usr/lib/../lib is considered different from /usr/lib.
2388 At least EXTRA_SPACE chars past the end of the path passed to
2389 CALLBACK are available for use by the callback.
2390 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2392 Returns the value returned by CALLBACK. */
2395 for_each_path (const struct path_prefix *paths,
2398 void *(*callback) (char *, void *),
2399 void *callback_info)
2401 struct prefix_list *pl;
2402 const char *multi_dir = NULL;
2403 const char *multi_os_dir = NULL;
2404 const char *multi_suffix;
2405 const char *just_multi_suffix;
2408 bool skip_multi_dir = false;
2409 bool skip_multi_os_dir = false;
2411 multi_suffix = machine_suffix;
2412 just_multi_suffix = just_machine_suffix;
2413 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2415 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2416 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2417 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2419 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2420 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2424 size_t multi_dir_len = 0;
2425 size_t multi_os_dir_len = 0;
2427 size_t just_suffix_len;
2431 multi_dir_len = strlen (multi_dir);
2433 multi_os_dir_len = strlen (multi_os_dir);
2434 suffix_len = strlen (multi_suffix);
2435 just_suffix_len = strlen (just_multi_suffix);
2439 len = paths->max_len + extra_space + 1;
2440 if (suffix_len > multi_os_dir_len)
2443 len += multi_os_dir_len;
2444 path = XNEWVEC (char, len);
2447 for (pl = paths->plist; pl != 0; pl = pl->next)
2449 len = strlen (pl->prefix);
2450 memcpy (path, pl->prefix, len);
2452 /* Look first in MACHINE/VERSION subdirectory. */
2453 if (!skip_multi_dir)
2455 memcpy (path + len, multi_suffix, suffix_len + 1);
2456 ret = callback (path, callback_info);
2461 /* Some paths are tried with just the machine (ie. target)
2462 subdir. This is used for finding as, ld, etc. */
2464 && pl->require_machine_suffix == 2)
2466 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2467 ret = callback (path, callback_info);
2472 /* Now try the base path. */
2473 if (!pl->require_machine_suffix
2474 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2476 const char *this_multi;
2477 size_t this_multi_len;
2479 if (pl->os_multilib)
2481 this_multi = multi_os_dir;
2482 this_multi_len = multi_os_dir_len;
2486 this_multi = multi_dir;
2487 this_multi_len = multi_dir_len;
2491 memcpy (path + len, this_multi, this_multi_len + 1);
2495 ret = callback (path, callback_info);
2503 if (multi_dir == NULL && multi_os_dir == NULL)
2506 /* Run through the paths again, this time without multilibs.
2507 Don't repeat any we have already seen. */
2510 free ((char *) multi_dir);
2512 free ((char *) multi_suffix);
2513 multi_suffix = machine_suffix;
2514 free ((char *) just_multi_suffix);
2515 just_multi_suffix = just_machine_suffix;
2518 skip_multi_dir = true;
2521 free ((char *) multi_os_dir);
2522 multi_os_dir = NULL;
2525 skip_multi_os_dir = true;
2530 free ((char *) multi_dir);
2531 free ((char *) multi_suffix);
2532 free ((char *) just_multi_suffix);
2535 free ((char *) multi_os_dir);
2541 /* Callback for build_search_list. Adds path to obstack being built. */
2543 struct add_to_obstack_info {
2550 add_to_obstack (char *path, void *data)
2552 struct add_to_obstack_info *info = data;
2554 if (info->check_dir && !is_directory (path, false))
2557 if (!info->first_time)
2558 obstack_1grow (info->ob, PATH_SEPARATOR);
2560 obstack_grow (info->ob, path, strlen (path));
2562 info->first_time = false;
2566 /* Build a list of search directories from PATHS.
2567 PREFIX is a string to prepend to the list.
2568 If CHECK_DIR_P is true we ensure the directory exists.
2569 If DO_MULTI is true, multilib paths are output first, then
2571 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2572 It is also used by the --print-search-dirs flag. */
2575 build_search_list (const struct path_prefix *paths, const char *prefix,
2576 bool check_dir, bool do_multi)
2578 struct add_to_obstack_info info;
2580 info.ob = &collect_obstack;
2581 info.check_dir = check_dir;
2582 info.first_time = true;
2584 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2585 obstack_1grow (&collect_obstack, '=');
2587 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2589 obstack_1grow (&collect_obstack, '\0');
2590 return XOBFINISH (&collect_obstack, char *);
2593 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2597 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2600 putenv (build_search_list (paths, env_var, true, do_multi));
2603 /* Check whether NAME can be accessed in MODE. This is like access,
2604 except that it never considers directories to be executable. */
2607 access_check (const char *name, int mode)
2613 if (stat (name, &st) < 0
2614 || S_ISDIR (st.st_mode))
2618 return access (name, mode);
2621 /* Callback for find_a_file. Appends the file name to the directory
2622 path. If the resulting file exists in the right mode, return the
2623 full pathname to the file. */
2625 struct file_at_path_info {
2634 file_at_path (char *path, void *data)
2636 struct file_at_path_info *info = data;
2637 size_t len = strlen (path);
2639 memcpy (path + len, info->name, info->name_len);
2640 len += info->name_len;
2642 /* Some systems have a suffix for executable files.
2643 So try appending that first. */
2644 if (info->suffix_len)
2646 memcpy (path + len, info->suffix, info->suffix_len + 1);
2647 if (access_check (path, info->mode) == 0)
2652 if (access_check (path, info->mode) == 0)
2658 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2659 access to check permissions. If DO_MULTI is true, search multilib
2660 paths then non-multilib paths, otherwise do not search multilib paths.
2661 Return 0 if not found, otherwise return its name, allocated with malloc. */
2664 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2667 struct file_at_path_info info;
2669 #ifdef DEFAULT_ASSEMBLER
2670 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2671 return xstrdup (DEFAULT_ASSEMBLER);
2674 #ifdef DEFAULT_LINKER
2675 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2676 return xstrdup (DEFAULT_LINKER);
2679 /* Determine the filename to execute (special case for absolute paths). */
2681 if (IS_ABSOLUTE_PATH (name))
2683 if (access (name, mode) == 0)
2684 return xstrdup (name);
2690 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2691 info.name_len = strlen (info.name);
2692 info.suffix_len = strlen (info.suffix);
2695 return for_each_path (pprefix, do_multi, info.name_len + info.suffix_len,
2696 file_at_path, &info);
2699 /* Ranking of prefixes in the sort list. -B prefixes are put before
2702 enum path_prefix_priority
2704 PREFIX_PRIORITY_B_OPT,
2705 PREFIX_PRIORITY_LAST
2708 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2709 order according to PRIORITY. Within each PRIORITY, new entries are
2712 If WARN is nonzero, we will warn if no file is found
2713 through this prefix. WARN should point to an int
2714 which will be set to 1 if this entry is used.
2716 COMPONENT is the value to be passed to update_path.
2718 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2719 the complete value of machine_suffix.
2720 2 means try both machine_suffix and just_machine_suffix. */
2723 add_prefix (struct path_prefix *pprefix, const char *prefix,
2724 const char *component, /* enum prefix_priority */ int priority,
2725 int require_machine_suffix, int os_multilib)
2727 struct prefix_list *pl, **prev;
2730 for (prev = &pprefix->plist;
2731 (*prev) != NULL && (*prev)->priority <= priority;
2732 prev = &(*prev)->next)
2735 /* Keep track of the longest prefix. */
2737 prefix = update_path (prefix, component);
2738 len = strlen (prefix);
2739 if (len > pprefix->max_len)
2740 pprefix->max_len = len;
2742 pl = XNEW (struct prefix_list);
2743 pl->prefix = prefix;
2744 pl->require_machine_suffix = require_machine_suffix;
2745 pl->priority = priority;
2746 pl->os_multilib = os_multilib;
2748 /* Insert after PREV. */
2753 /* Same as add_prefix, but prepending target_system_root to prefix. */
2755 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2756 const char *component,
2757 /* enum prefix_priority */ int priority,
2758 int require_machine_suffix, int os_multilib)
2760 if (!IS_ABSOLUTE_PATH (prefix))
2761 fatal ("system path '%s' is not absolute", prefix);
2763 if (target_system_root)
2765 if (target_sysroot_suffix)
2766 prefix = concat (target_sysroot_suffix, prefix, NULL);
2767 prefix = concat (target_system_root, prefix, NULL);
2769 /* We have to override this because GCC's notion of sysroot
2770 moves along with GCC. */
2774 add_prefix (pprefix, prefix, component, priority,
2775 require_machine_suffix, os_multilib);
2778 /* Execute the command specified by the arguments on the current line of spec.
2779 When using pipes, this includes several piped-together commands
2780 with `|' between them.
2782 Return 0 if successful, -1 if failed. */
2788 int n_commands; /* # of command. */
2790 struct pex_obj *pex;
2793 const char *prog; /* program name. */
2794 const char **argv; /* vector of args. */
2797 struct command *commands; /* each command buffer with above info. */
2799 gcc_assert (!processing_spec_function);
2801 /* Count # of piped commands. */
2802 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2803 if (strcmp (argbuf[i], "|") == 0)
2806 /* Get storage for each command. */
2807 commands = alloca (n_commands * sizeof (struct command));
2809 /* Split argbuf into its separate piped processes,
2810 and record info about each one.
2811 Also search for the programs that are to be run. */
2813 commands[0].prog = argbuf[0]; /* first command. */
2814 commands[0].argv = &argbuf[0];
2815 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2818 commands[0].argv[0] = string;
2820 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2821 if (strcmp (argbuf[i], "|") == 0)
2822 { /* each command. */
2823 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2824 fatal ("-pipe not supported");
2826 argbuf[i] = 0; /* termination of command args. */
2827 commands[n_commands].prog = argbuf[i + 1];
2828 commands[n_commands].argv = &argbuf[i + 1];
2829 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2832 commands[n_commands].argv[0] = string;
2836 argbuf[argbuf_index] = 0;
2838 /* If -v, print what we are about to do, and maybe query. */
2842 /* For help listings, put a blank line between sub-processes. */
2843 if (print_help_list)
2844 fputc ('\n', stderr);
2846 /* Print each piped command as a separate line. */
2847 for (i = 0; i < n_commands; i++)
2849 const char *const *j;
2851 if (verbose_only_flag)
2853 for (j = commands[i].argv; *j; j++)
2856 fprintf (stderr, " \"");
2857 for (p = *j; *p; ++p)
2859 if (*p == '"' || *p == '\\' || *p == '$')
2860 fputc ('\\', stderr);
2863 fputc ('"', stderr);
2867 for (j = commands[i].argv; *j; j++)
2868 fprintf (stderr, " %s", *j);
2870 /* Print a pipe symbol after all but the last command. */
2871 if (i + 1 != n_commands)
2872 fprintf (stderr, " |");
2873 fprintf (stderr, "\n");
2876 if (verbose_only_flag != 0)
2878 /* verbose_only_flag should act as if the spec was
2879 executed, so increment execution_count before
2880 returning. This prevents spurious warnings about
2881 unused linker input files, etc. */
2886 notice ("\nGo ahead? (y or n) ");
2890 while (getchar () != '\n')
2893 if (i != 'y' && i != 'Y')
2898 #ifdef ENABLE_VALGRIND_CHECKING
2899 /* Run the each command through valgrind. To simplify prepending the
2900 path to valgrind and the option "-q" (for quiet operation unless
2901 something triggers), we allocate a separate argv array. */
2903 for (i = 0; i < n_commands; i++)
2909 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
2912 argv = alloca ((argc + 3) * sizeof (char *));
2914 argv[0] = VALGRIND_PATH;
2916 for (j = 2; j < argc + 2; j++)
2917 argv[j] = commands[i].argv[j - 2];
2920 commands[i].argv = argv;
2921 commands[i].prog = argv[0];
2925 /* Run each piped subprocess. */
2927 pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
2928 programname, temp_filename);
2930 pfatal_with_name (_("pex_init failed"));
2932 for (i = 0; i < n_commands; i++)
2936 const char *string = commands[i].argv[0];
2938 errmsg = pex_run (pex,
2939 ((i + 1 == n_commands ? PEX_LAST : 0)
2940 | (string == commands[i].prog ? PEX_SEARCH : 0)),
2941 string, (char * const *) commands[i].argv,
2950 pfatal_with_name (errmsg);
2954 if (string != commands[i].prog)
2955 free ((void *) string);
2960 /* Wait for all the subprocesses to finish. */
2964 struct pex_time *times = NULL;
2967 statuses = alloca (n_commands * sizeof (int));
2968 if (!pex_get_status (pex, n_commands, statuses))
2969 pfatal_with_name (_("failed to get exit status"));
2973 times = alloca (n_commands * sizeof (struct pex_time));
2974 if (!pex_get_times (pex, n_commands, times))
2975 pfatal_with_name (_("failed to get process times"));
2980 for (i = 0; i < n_commands; ++i)
2982 int status = statuses[i];
2984 if (WIFSIGNALED (status))
2987 /* SIGPIPE is a special case. It happens in -pipe mode
2988 when the compiler dies before the preprocessor is done,
2989 or the assembler dies before the compiler is done.
2990 There's generally been an error already, and this is
2991 just fallout. So don't generate another error unless
2992 we would otherwise have succeeded. */
2993 if (WTERMSIG (status) == SIGPIPE
2994 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3002 Internal error: %s (program %s)\n\
3003 Please submit a full bug report.\n\
3004 See %s for instructions.",
3005 strsignal (WTERMSIG (status)), commands[i].prog,
3008 else if (WIFEXITED (status)
3009 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3011 if (WEXITSTATUS (status) > greatest_status)
3012 greatest_status = WEXITSTATUS (status);
3018 struct pex_time *pt = ×[i];
3021 ut = ((double) pt->user_seconds
3022 + (double) pt->user_microseconds / 1.0e6);
3023 st = ((double) pt->system_seconds
3024 + (double) pt->system_microseconds / 1.0e6);
3027 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3035 /* Find all the switches given to us
3036 and make a vector describing them.
3037 The elements of the vector are strings, one per switch given.
3038 If a switch uses following arguments, then the `part1' field
3039 is the switch itself and the `args' field
3040 is a null-terminated vector containing the following arguments.
3041 The `live_cond' field is:
3043 1 if the switch is true in a conditional spec,
3044 -1 if false (overridden by a later switch)
3045 -2 if this switch should be ignored (used in %<S)
3046 The `validated' field is nonzero if any spec has looked at this switch;
3047 if it remains zero at the end of the run, it must be meaningless. */
3050 #define SWITCH_FALSE -1
3051 #define SWITCH_IGNORE -2
3052 #define SWITCH_LIVE 1
3059 unsigned char validated;
3060 unsigned char ordering;
3063 static struct switchstr *switches;
3065 static int n_switches;
3067 /* Language is one of three things:
3069 1) The name of a real programming language.
3070 2) NULL, indicating that no one has figured out
3072 3) '*', indicating that the file should be passed
3077 const char *language;
3078 struct compiler *incompiler;
3083 /* Also a vector of input files specified. */
3085 static struct infile *infiles;
3089 /* True if multiple input files are being compiled to a single
3092 static bool combine_inputs;
3094 /* This counts the number of libraries added by lang_specific_driver, so that
3095 we can tell if there were any user supplied any files or libraries. */
3097 static int added_libraries;
3099 /* And a vector of corresponding output files is made up later. */
3101 const char **outfiles;
3103 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3105 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3106 is true if we should look for an executable suffix. DO_OBJ
3107 is true if we should look for an object suffix. */
3110 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3111 int do_obj ATTRIBUTE_UNUSED)
3113 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3121 len = strlen (name);
3123 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3124 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3125 if (do_obj && len > 2
3126 && name[len - 2] == '.'
3127 && name[len - 1] == 'o')
3129 obstack_grow (&obstack, name, len - 2);
3130 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3131 name = XOBFINISH (&obstack, const char *);
3135 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3136 /* If there is no filetype, make it the executable suffix (which includes
3137 the "."). But don't get confused if we have just "-o". */
3138 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3141 for (i = len - 1; i >= 0; i--)
3142 if (IS_DIR_SEPARATOR (name[i]))
3145 for (i++; i < len; i++)
3149 obstack_grow (&obstack, name, len);
3150 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3151 strlen (TARGET_EXECUTABLE_SUFFIX));
3152 name = XOBFINISH (&obstack, const char *);
3159 /* Display the command line switches accepted by gcc. */
3163 printf (_("Usage: %s [options] file...\n"), programname);
3164 fputs (_("Options:\n"), stdout);
3166 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3167 fputs (_(" --help Display this information\n"), stdout);
3168 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3170 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3171 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3172 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3173 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3174 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3175 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3176 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3177 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3178 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3180 -print-multi-lib Display the mapping between command line options and\n\
3181 multiple library search directories\n"), stdout);
3182 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3183 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3184 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3185 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3186 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3187 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3188 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3189 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3190 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3191 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3192 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3193 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3194 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3196 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3197 for headers and libraries\n"), stdout);
3198 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3199 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3200 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3201 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3202 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3203 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3204 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3205 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3206 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3208 -x <language> Specify the language of the following input files\n\
3209 Permissible languages include: c c++ assembler none\n\
3210 'none' means revert to the default behavior of\n\
3211 guessing the language based on the file's extension\n\
3215 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3216 passed on to the various sub-processes invoked by %s. In order to pass\n\
3217 other options on to these processes the -W<letter> options must be used.\n\
3220 /* The rest of the options are displayed by invocations of the various
3225 add_preprocessor_option (const char *option, int len)
3227 n_preprocessor_options++;
3229 if (! preprocessor_options)
3230 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3232 preprocessor_options = xrealloc (preprocessor_options,
3233 n_preprocessor_options * sizeof (char *));
3235 preprocessor_options [n_preprocessor_options - 1] =
3236 save_string (option, len);
3240 add_assembler_option (const char *option, int len)
3242 n_assembler_options++;
3244 if (! assembler_options)
3245 assembler_options = XNEWVEC (char *, n_assembler_options);
3247 assembler_options = xrealloc (assembler_options,
3248 n_assembler_options * sizeof (char *));
3250 assembler_options [n_assembler_options - 1] = save_string (option, len);
3254 add_linker_option (const char *option, int len)
3258 if (! linker_options)
3259 linker_options = XNEWVEC (char *, n_linker_options);
3261 linker_options = xrealloc (linker_options,
3262 n_linker_options * sizeof (char *));
3264 linker_options [n_linker_options - 1] = save_string (option, len);
3267 /* Create the vector `switches' and its contents.
3268 Store its length in `n_switches'. */
3271 process_command (int argc, const char **argv)
3276 const char *spec_lang = 0;
3277 int last_language_n_infiles;
3278 int lang_n_infiles = 0;
3279 #ifdef MODIFY_TARGET_NAME
3280 int is_modify_target_name;
3284 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3288 added_libraries = 0;
3290 /* Figure compiler version from version string. */
3292 compiler_version = temp1 = xstrdup (version_string);
3294 for (; *temp1; ++temp1)
3303 /* If there is a -V or -b option (or both), process it now, before
3304 trying to interpret the rest of the command line.
3305 Use heuristic that all configuration names must have at least
3306 one dash '-'. This allows us to pass options starting with -b. */
3307 if (argc > 1 && argv[1][0] == '-'
3308 && (argv[1][1] == 'V' ||
3309 ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
3311 const char *new_version = DEFAULT_TARGET_VERSION;
3312 const char *new_machine = DEFAULT_TARGET_MACHINE;
3313 const char *progname = argv[0];
3318 while (argc > 1 && argv[1][0] == '-'
3319 && (argv[1][1] == 'V' ||
3320 ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
3322 char opt = argv[1][1];
3324 if (argv[1][2] != '\0')
3337 fatal ("'-%c' option must have argument", opt);
3344 for (baselen = strlen (progname); baselen > 0; baselen--)
3345 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3347 new_argv0 = xmemdup (progname, baselen,
3348 baselen + concat_length (new_version, new_machine,
3349 "-gcc-", NULL) + 1);
3350 strcpy (new_argv0 + baselen, new_machine);
3351 strcat (new_argv0, "-gcc-");
3352 strcat (new_argv0, new_version);
3354 new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
3355 (argc + 1) * sizeof (argv[0]));
3356 new_argv[0] = new_argv0;
3358 execvp (new_argv0, new_argv);
3359 fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
3362 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3363 see if we can create it from the pathname specified in argv[0]. */
3365 gcc_libexec_prefix = standard_libexec_prefix;
3367 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3368 if (!gcc_exec_prefix)
3370 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3371 standard_exec_prefix);
3372 gcc_libexec_prefix = make_relative_prefix (argv[0],
3373 standard_bindir_prefix,
3374 standard_libexec_prefix);
3375 if (gcc_exec_prefix)
3376 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3380 /* make_relative_prefix requires a program name, but
3381 GCC_EXEC_PREFIX is typically a directory name with a trailing
3382 / (which is ignored by make_relative_prefix), so append a
3384 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3385 gcc_libexec_prefix = make_relative_prefix (tmp_prefix,
3386 standard_exec_prefix,
3387 standard_libexec_prefix);
3393 if (gcc_exec_prefix)
3395 int len = strlen (gcc_exec_prefix);
3397 if (len > (int) sizeof ("/lib/gcc/") - 1
3398 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3400 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3401 if (IS_DIR_SEPARATOR (*temp)
3402 && strncmp (temp + 1, "lib", 3) == 0
3403 && IS_DIR_SEPARATOR (temp[4])
3404 && strncmp (temp + 5, "gcc", 3) == 0)
3405 len -= sizeof ("/lib/gcc/") - 1;
3408 set_std_prefix (gcc_exec_prefix, len);
3409 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3410 PREFIX_PRIORITY_LAST, 0, 0);
3411 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3412 PREFIX_PRIORITY_LAST, 0, 0);
3415 /* COMPILER_PATH and LIBRARY_PATH have values
3416 that are lists of directory names with colons. */
3418 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3421 const char *startp, *endp;
3422 char *nstore = alloca (strlen (temp) + 3);
3424 startp = endp = temp;
3427 if (*endp == PATH_SEPARATOR || *endp == 0)
3429 strncpy (nstore, startp, endp - startp);
3431 strcpy (nstore, concat (".", dir_separator_str, NULL));
3432 else if (!IS_DIR_SEPARATOR (endp[-1]))
3434 nstore[endp - startp] = DIR_SEPARATOR;
3435 nstore[endp - startp + 1] = 0;
3438 nstore[endp - startp] = 0;
3439 add_prefix (&exec_prefixes, nstore, 0,
3440 PREFIX_PRIORITY_LAST, 0, 0);
3441 add_prefix (&include_prefixes, nstore, 0,
3442 PREFIX_PRIORITY_LAST, 0, 0);
3445 endp = startp = endp + 1;
3452 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3453 if (temp && *cross_compile == '0')
3455 const char *startp, *endp;
3456 char *nstore = alloca (strlen (temp) + 3);
3458 startp = endp = temp;
3461 if (*endp == PATH_SEPARATOR || *endp == 0)
3463 strncpy (nstore, startp, endp - startp);
3465 strcpy (nstore, concat (".", dir_separator_str, NULL));
3466 else if (!IS_DIR_SEPARATOR (endp[-1]))
3468 nstore[endp - startp] = DIR_SEPARATOR;
3469 nstore[endp - startp + 1] = 0;
3472 nstore[endp - startp] = 0;
3473 add_prefix (&startfile_prefixes, nstore, NULL,
3474 PREFIX_PRIORITY_LAST, 0, 1);
3477 endp = startp = endp + 1;
3484 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3485 GET_ENVIRONMENT (temp, "LPATH");
3486 if (temp && *cross_compile == '0')
3488 const char *startp, *endp;
3489 char *nstore = alloca (strlen (temp) + 3);
3491 startp = endp = temp;
3494 if (*endp == PATH_SEPARATOR || *endp == 0)
3496 strncpy (nstore, startp, endp - startp);
3498 strcpy (nstore, concat (".", dir_separator_str, NULL));
3499 else if (!IS_DIR_SEPARATOR (endp[-1]))
3501 nstore[endp - startp] = DIR_SEPARATOR;
3502 nstore[endp - startp + 1] = 0;
3505 nstore[endp - startp] = 0;
3506 add_prefix (&startfile_prefixes, nstore, NULL,
3507 PREFIX_PRIORITY_LAST, 0, 1);
3510 endp = startp = endp + 1;
3517 /* Convert new-style -- options to old-style. */
3518 translate_options (&argc, (const char *const **) &argv);
3520 /* Do language-specific adjustment/addition of flags. */
3521 lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
3523 /* Scan argv twice. Here, the first time, just count how many switches
3524 there will be in their vector, and how many input files in theirs.
3525 Here we also parse the switches that cc itself uses (e.g. -v). */
3527 for (i = 1; i < argc; i++)
3529 if (! strcmp (argv[i], "-dumpspecs"))
3531 struct spec_list *sl;
3533 for (sl = specs; sl; sl = sl->next)
3534 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3535 if (link_command_spec)
3536 printf ("*link_command:\n%s\n\n", link_command_spec);
3539 else if (! strcmp (argv[i], "-dumpversion"))
3541 printf ("%s\n", spec_version);
3544 else if (! strcmp (argv[i], "-dumpmachine"))
3546 printf ("%s\n", spec_machine);
3549 else if (strcmp (argv[i], "-fversion") == 0)
3551 /* translate_options () has turned --version into -fversion. */
3552 printf (_("%s (GCC) %s\n"), programname, version_string);
3553 printf ("Copyright %s 2006 Free Software Foundation, Inc.\n",
3555 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3556 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3560 else if (strcmp (argv[i], "-fhelp") == 0)
3562 /* translate_options () has turned --help into -fhelp. */
3563 print_help_list = 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 ("--help", 6);
3572 add_assembler_option ("--help", 6);
3573 add_linker_option ("--help", 6);
3575 else if (strcmp (argv[i], "-ftarget-help") == 0)
3577 /* translate_options() has turned --target-help into -ftarget-help. */
3578 target_help_flag = 1;
3580 /* We will be passing a dummy file on to the sub-processes. */
3584 /* CPP driver cannot obtain switch from cc1_options. */
3586 add_preprocessor_option ("--target-help", 13);
3587 add_assembler_option ("--target-help", 13);
3588 add_linker_option ("--target-help", 13);
3590 else if (! strcmp (argv[i], "-pass-exit-codes"))
3592 pass_exit_codes = 1;
3595 else if (! strcmp (argv[i], "-print-search-dirs"))
3596 print_search_dirs = 1;
3597 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3598 print_file_name = "libgcc.a";
3599 else if (! strncmp (argv[i], "-print-file-name=", 17))
3600 print_file_name = argv[i] + 17;
3601 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3602 print_prog_name = argv[i] + 17;
3603 else if (! strcmp (argv[i], "-print-multi-lib"))
3604 print_multi_lib = 1;
3605 else if (! strcmp (argv[i], "-print-multi-directory"))
3606 print_multi_directory = 1;
3607 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3608 print_multi_os_directory = 1;
3609 else if (! strncmp (argv[i], "-Wa,", 4))
3612 /* Pass the rest of this option to the assembler. */
3614 /* Split the argument at commas. */
3616 for (j = 4; argv[i][j]; j++)
3617 if (argv[i][j] == ',')
3619 add_assembler_option (argv[i] + prev, j - prev);
3623 /* Record the part after the last comma. */
3624 add_assembler_option (argv[i] + prev, j - prev);
3626 else if (! strncmp (argv[i], "-Wp,", 4))
3629 /* Pass the rest of this option to the preprocessor. */
3631 /* Split the argument at commas. */
3633 for (j = 4; argv[i][j]; j++)
3634 if (argv[i][j] == ',')
3636 add_preprocessor_option (argv[i] + prev, j - prev);
3640 /* Record the part after the last comma. */
3641 add_preprocessor_option (argv[i] + prev, j - prev);
3643 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3644 /* The +e options to the C++ front-end. */
3646 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3649 /* Split the argument at commas. */
3650 for (j = 3; argv[i][j]; j++)
3651 n_infiles += (argv[i][j] == ',');
3653 else if (strcmp (argv[i], "-Xlinker") == 0)
3656 fatal ("argument to '-Xlinker' is missing");
3661 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3664 fatal ("argument to '-Xpreprocessor' is missing");
3666 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3668 else if (strcmp (argv[i], "-Xassembler") == 0)
3671 fatal ("argument to '-Xassembler' is missing");
3673 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3675 else if (strcmp (argv[i], "-l") == 0)
3678 fatal ("argument to '-l' is missing");
3683 else if (strncmp (argv[i], "-l", 2) == 0)
3685 else if (strcmp (argv[i], "-save-temps") == 0)
3687 save_temps_flag = 1;
3690 else if (strcmp (argv[i], "-combine") == 0)
3695 else if (strcmp (argv[i], "-specs") == 0)
3697 struct user_specs *user = XNEW (struct user_specs);
3699 fatal ("argument to '-specs' is missing");
3701 user->next = (struct user_specs *) 0;
3702 user->filename = argv[i];
3703 if (user_specs_tail)
3704 user_specs_tail->next = user;
3706 user_specs_head = user;
3707 user_specs_tail = user;
3709 else if (strncmp (argv[i], "-specs=", 7) == 0)
3711 struct user_specs *user = XNEW (struct user_specs);
3712 if (strlen (argv[i]) == 7)
3713 fatal ("argument to '-specs=' is missing");
3715 user->next = (struct user_specs *) 0;
3716 user->filename = argv[i] + 7;
3717 if (user_specs_tail)
3718 user_specs_tail->next = user;
3720 user_specs_head = user;
3721 user_specs_tail = user;
3723 else if (strcmp (argv[i], "-time") == 0)
3725 else if (strcmp (argv[i], "-pipe") == 0)
3727 /* -pipe has to go into the switches array as well as
3732 else if (strcmp (argv[i], "-###") == 0)
3734 /* This is similar to -v except that there is no execution
3735 of the commands and the echoed arguments are quoted. It
3736 is intended for use in shell scripts to capture the
3737 driver-generated command line. */
3738 verbose_only_flag++;
3741 else if (argv[i][0] == '-' && argv[i][1] != 0)
3743 const char *p = &argv[i][1];
3749 if (NULL == strchr(argv[i] + 2, '-')) break;
3751 fatal ("'-%c' must come at the start of the command line", c);
3759 if (p[1] == 0 && i + 1 == argc)
3760 fatal ("argument to '-B' is missing");
3766 len = strlen (value);
3768 /* Catch the case where the user has forgotten to append a
3769 directory separator to the path. Note, they may be using
3770 -B to add an executable name prefix, eg "i386-elf-", in
3771 order to distinguish between multiple installations of
3772 GCC in the same directory. Hence we must check to see
3773 if appending a directory separator actually makes a
3774 valid directory name. */
3775 if (! IS_DIR_SEPARATOR (value [len - 1])
3776 && is_directory (value, false))
3778 char *tmp = XNEWVEC (char, len + 2);
3779 strcpy (tmp, value);
3780 tmp[len] = DIR_SEPARATOR;
3785 /* As a kludge, if the arg is "[foo/]stageN/", just
3786 add "[foo/]include" to the include prefix. */
3789 && (IS_DIR_SEPARATOR (value[len - 8]))))
3790 && strncmp (value + len - 7, "stage", 5) == 0
3791 && ISDIGIT (value[len - 2])
3792 && (IS_DIR_SEPARATOR (value[len - 1])))
3795 add_prefix (&include_prefixes, "./", NULL,
3796 PREFIX_PRIORITY_B_OPT, 0, 0);
3799 char *string = xmalloc (len - 6);
3800 memcpy (string, value, len - 7);
3801 string[len - 7] = 0;
3802 add_prefix (&include_prefixes, string, NULL,
3803 PREFIX_PRIORITY_B_OPT, 0, 0);
3807 add_prefix (&exec_prefixes, value, NULL,
3808 PREFIX_PRIORITY_B_OPT, 0, 0);
3809 add_prefix (&startfile_prefixes, value, NULL,
3810 PREFIX_PRIORITY_B_OPT, 0, 0);
3811 add_prefix (&include_prefixes, value, NULL,
3812 PREFIX_PRIORITY_B_OPT, 0, 0);
3817 case 'v': /* Print our subcommands and print versions. */
3819 /* If they do anything other than exactly `-v', don't set
3820 verbose_flag; rather, continue on to give the error. */
3838 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3843 /* Forward scan, just in case -S or -c is specified
3850 if (argv[j][0] == '-')
3852 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3858 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3859 j += skip - (argv[j][2] != 0);
3860 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3867 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3869 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3871 argv[i] = convert_filename (argv[i], ! have_c, 0);
3878 #ifdef MODIFY_TARGET_NAME
3879 is_modify_target_name = 0;
3881 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3882 if (! strcmp (argv[i], modify_target[j].sw))
3884 char *new_name = xmalloc (strlen (modify_target[j].str)
3885 + strlen (spec_machine));
3888 int made_addition = 0;
3890 is_modify_target_name = 1;
3891 for (p = spec_machine, q = new_name; *p != 0; )
3893 if (modify_target[j].add_del == DELETE
3894 && (! strncmp (q, modify_target[j].str,
3895 strlen (modify_target[j].str))))
3896 p += strlen (modify_target[j].str);
3897 else if (modify_target[j].add_del == ADD
3898 && ! made_addition && *p == '-')
3900 for (r = modify_target[j].str; *r != 0; )
3908 spec_machine = new_name;
3911 if (is_modify_target_name)
3917 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3918 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3919 else if (WORD_SWITCH_TAKES_ARG (p))
3920 i += WORD_SWITCH_TAKES_ARG (p);
3930 if (save_temps_flag && use_pipes)
3932 /* -save-temps overrides -pipe, so that temp files are produced */
3933 if (save_temps_flag)
3934 error ("warning: -pipe ignored because -save-temps specified");
3938 /* Set up the search paths before we go looking for config files. */
3940 /* These come before the md prefixes so that we will find gcc's subcommands
3941 (such as cpp) rather than those of the host system. */
3942 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3943 as well as trying the machine and the version. */
3945 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
3946 PREFIX_PRIORITY_LAST, 1, 0);
3947 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
3948 PREFIX_PRIORITY_LAST, 2, 0);
3949 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3950 PREFIX_PRIORITY_LAST, 2, 0);
3951 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3952 PREFIX_PRIORITY_LAST, 2, 0);
3953 add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
3954 PREFIX_PRIORITY_LAST, 2, 0);
3957 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3958 PREFIX_PRIORITY_LAST, 1, 0);
3959 add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
3960 PREFIX_PRIORITY_LAST, 1, 0);
3962 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3963 dir_separator_str, NULL);
3965 /* If tooldir is relative, base it on exec_prefixes. A relative
3966 tooldir lets us move the installed tree as a unit.
3968 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3969 directories, so that we can search both the user specified directory
3970 and the standard place. */
3972 if (!IS_ABSOLUTE_PATH (tooldir_prefix))
3974 if (gcc_exec_prefix)
3976 char *gcc_exec_tooldir_prefix
3977 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3978 spec_version, dir_separator_str, tooldir_prefix, NULL);
3980 add_prefix (&exec_prefixes,
3981 concat (gcc_exec_tooldir_prefix, "bin",
3982 dir_separator_str, NULL),
3983 NULL, PREFIX_PRIORITY_LAST, 0, 0);
3984 add_prefix (&startfile_prefixes,
3985 concat (gcc_exec_tooldir_prefix, "lib",
3986 dir_separator_str, NULL),
3987 NULL, PREFIX_PRIORITY_LAST, 0, 1);
3990 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3991 dir_separator_str, spec_version,
3992 dir_separator_str, tooldir_prefix, NULL);
3995 add_prefix (&exec_prefixes,
3996 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3997 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
3998 add_prefix (&startfile_prefixes,
3999 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4000 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4002 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4003 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4004 then consider it to relocate with the rest of the GCC installation
4005 if GCC_EXEC_PREFIX is set.
4006 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4007 if (target_system_root && gcc_exec_prefix)
4009 char *tmp_prefix = make_relative_prefix (argv[0],
4010 standard_bindir_prefix,
4011 target_system_root);
4012 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4014 target_system_root = tmp_prefix;
4015 target_system_root_changed = 1;
4020 /* More prefixes are enabled in main, after we read the specs file
4021 and determine whether this is cross-compilation or not. */
4023 /* Then create the space for the vectors and scan again. */
4025 switches = XNEWVEC (struct switchstr, n_switches + 1);
4026 infiles = XNEWVEC (struct infile, n_infiles + 1);
4029 last_language_n_infiles = -1;
4031 /* This, time, copy the text of each switch and store a pointer
4032 to the copy in the vector of switches.
4033 Store all the infiles in their vector. */
4035 for (i = 1; i < argc; i++)
4037 /* Just skip the switches that were handled by the preceding loop. */
4038 #ifdef MODIFY_TARGET_NAME
4039 is_modify_target_name = 0;
4041 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4042 if (! strcmp (argv[i], modify_target[j].sw))
4043 is_modify_target_name = 1;
4045 if (is_modify_target_name)
4049 if (! strncmp (argv[i], "-Wa,", 4))
4051 else if (! strncmp (argv[i], "-Wp,", 4))
4053 else if (! strcmp (argv[i], "-pass-exit-codes"))
4055 else if (! strcmp (argv[i], "-print-search-dirs"))
4057 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4059 else if (! strncmp (argv[i], "-print-file-name=", 17))
4061 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4063 else if (! strcmp (argv[i], "-print-multi-lib"))
4065 else if (! strcmp (argv[i], "-print-multi-directory"))
4067 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4069 else if (! strcmp (argv[i], "-ftarget-help"))
4071 else if (! strcmp (argv[i], "-fhelp"))
4073 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4075 target_system_root = argv[i] + strlen ("--sysroot=");
4076 target_system_root_changed = 1;
4078 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4080 /* Compensate for the +e options to the C++ front-end;
4081 they're there simply for cfront call-compatibility. We do
4082 some magic in default_compilers to pass them down properly.
4083 Note we deliberately start at the `+' here, to avoid passing
4084 -e0 or -e1 down into the linker. */
4085 switches[n_switches].part1 = &argv[i][0];
4086 switches[n_switches].args = 0;
4087 switches[n_switches].live_cond = SWITCH_OK;
4088 switches[n_switches].validated = 0;
4091 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4094 /* Split the argument at commas. */
4096 for (j = 4; argv[i][j]; j++)
4097 if (argv[i][j] == ',')
4099 infiles[n_infiles].language = "*";
4100 infiles[n_infiles++].name
4101 = save_string (argv[i] + prev, j - prev);
4104 /* Record the part after the last comma. */
4105 infiles[n_infiles].language = "*";
4106 infiles[n_infiles++].name = argv[i] + prev;
4108 else if (strcmp (argv[i], "-Xlinker") == 0)
4110 infiles[n_infiles].language = "*";
4111 infiles[n_infiles++].name = argv[++i];
4113 /* Xassembler and Xpreprocessor were already handled in the first argv
4114 scan, so all we need to do here is ignore them and their argument. */
4115 else if (strcmp (argv[i], "-Xassembler") == 0)
4117 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4119 else if (strcmp (argv[i], "-l") == 0)
4120 { /* POSIX allows separation of -l and the lib arg;
4121 canonicalize by concatenating -l with its arg */
4122 infiles[n_infiles].language = "*";
4123 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4125 else if (strncmp (argv[i], "-l", 2) == 0)
4127 infiles[n_infiles].language = "*";
4128 infiles[n_infiles++].name = argv[i];
4130 else if (strcmp (argv[i], "-specs") == 0)
4132 else if (strncmp (argv[i], "-specs=", 7) == 0)
4134 else if (strcmp (argv[i], "-time") == 0)
4136 else if (strcmp (argv[i], "-###") == 0)
4138 else if (argv[i][0] == '-' && argv[i][1] != 0)
4140 const char *p = &argv[i][1];
4145 if (p[1] == 0 && i + 1 == argc)
4146 fatal ("argument to '-x' is missing");
4148 spec_lang = argv[++i];
4151 if (! strcmp (spec_lang, "none"))
4152 /* Suppress the warning if -xnone comes after the last input
4153 file, because alternate command interfaces like g++ might
4154 find it useful to place -xnone after each input file. */
4157 last_language_n_infiles = n_infiles;
4160 switches[n_switches].part1 = p;
4161 /* Deal with option arguments in separate argv elements. */
4162 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4163 || WORD_SWITCH_TAKES_ARG (p))
4166 int n_args = WORD_SWITCH_TAKES_ARG (p);
4170 /* Count only the option arguments in separate argv elements. */
4171 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4173 if (i + n_args >= argc)
4174 fatal ("argument to '-%s' is missing", p);
4175 switches[n_switches].args
4176 = XNEWVEC (const char *, n_args + 1);
4178 switches[n_switches].args[j++] = argv[++i];
4179 /* Null-terminate the vector. */
4180 switches[n_switches].args[j] = 0;
4182 else if (strchr (switches_need_spaces, c))
4184 /* On some systems, ld cannot handle some options without
4185 a space. So split the option from its argument. */
4186 char *part1 = XNEWVEC (char, 2);
4190 switches[n_switches].part1 = part1;
4191 switches[n_switches].args = XNEWVEC (const char *, 2);
4192 switches[n_switches].args[0] = xstrdup (p+1);
4193 switches[n_switches].args[1] = 0;
4196 switches[n_switches].args = 0;
4198 switches[n_switches].live_cond = SWITCH_OK;
4199 switches[n_switches].validated = 0;
4200 switches[n_switches].ordering = 0;
4201 /* These are always valid, since gcc.c itself understands them. */
4202 if (!strcmp (p, "save-temps")
4203 || !strcmp (p, "static-libgcc")
4204 || !strcmp (p, "shared-libgcc")
4205 || !strcmp (p, "pipe"))
4206 switches[n_switches].validated = 1;
4209 char ch = switches[n_switches].part1[0];
4211 switches[n_switches].validated = 1;
4217 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4218 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4221 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4223 perror_with_name (argv[i]);
4228 infiles[n_infiles].language = spec_lang;
4229 infiles[n_infiles++].name = argv[i];
4234 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4235 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4237 /* Ensure we only invoke each subprocess once. */
4238 if (target_help_flag || print_help_list)
4242 /* Create a dummy input file, so that we can pass --target-help on to
4243 the various sub-processes. */
4244 infiles[0].language = "c";
4245 infiles[0].name = "help-dummy";
4247 if (target_help_flag)
4249 switches[n_switches].part1 = "--target-help";
4250 switches[n_switches].args = 0;
4251 switches[n_switches].live_cond = SWITCH_OK;
4252 switches[n_switches].validated = 0;
4257 if (print_help_list)
4259 switches[n_switches].part1 = "--help";
4260 switches[n_switches].args = 0;
4261 switches[n_switches].live_cond = SWITCH_OK;
4262 switches[n_switches].validated = 0;
4268 switches[n_switches].part1 = 0;
4269 infiles[n_infiles].name = 0;
4272 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4273 and place that in the environment. */
4276 set_collect_gcc_options (void)
4281 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4283 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4284 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4287 for (i = 0; (int) i < n_switches; i++)
4289 const char *const *args;
4292 obstack_grow (&collect_obstack, " ", 1);
4296 /* Ignore elided switches. */
4297 if (switches[i].live_cond == SWITCH_IGNORE)
4300 obstack_grow (&collect_obstack, "'-", 2);
4301 q = switches[i].part1;
4302 while ((p = strchr (q, '\'')))
4304 obstack_grow (&collect_obstack, q, p - q);
4305 obstack_grow (&collect_obstack, "'\\''", 4);
4308 obstack_grow (&collect_obstack, q, strlen (q));
4309 obstack_grow (&collect_obstack, "'", 1);
4311 for (args = switches[i].args; args && *args; args++)
4313 obstack_grow (&collect_obstack, " '", 2);
4315 while ((p = strchr (q, '\'')))
4317 obstack_grow (&collect_obstack, q, p - q);
4318 obstack_grow (&collect_obstack, "'\\''", 4);
4321 obstack_grow (&collect_obstack, q, strlen (q));
4322 obstack_grow (&collect_obstack, "'", 1);
4325 obstack_grow (&collect_obstack, "\0", 1);
4326 putenv (XOBFINISH (&collect_obstack, char *));
4329 /* Process a spec string, accumulating and running commands. */
4331 /* These variables describe the input file name.
4332 input_file_number is the index on outfiles of this file,
4333 so that the output file name can be stored for later use by %o.
4334 input_basename is the start of the part of the input file
4335 sans all directory names, and basename_length is the number
4336 of characters starting there excluding the suffix .c or whatever. */
4338 static const char *input_filename;
4339 static int input_file_number;
4340 size_t input_filename_length;
4341 static int basename_length;
4342 static int suffixed_basename_length;
4343 static const char *input_basename;
4344 static const char *input_suffix;
4345 #ifndef HOST_LACKS_INODE_NUMBERS
4346 static struct stat input_stat;
4348 static int input_stat_set;
4350 /* The compiler used to process the current input file. */
4351 static struct compiler *input_file_compiler;
4353 /* These are variables used within do_spec and do_spec_1. */
4355 /* Nonzero if an arg has been started and not yet terminated
4356 (with space, tab or newline). */
4357 static int arg_going;
4359 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4360 is a temporary file name. */
4361 static int delete_this_arg;
4363 /* Nonzero means %w has been seen; the next arg to be terminated
4364 is the output file name of this compilation. */
4365 static int this_is_output_file;
4367 /* Nonzero means %s has been seen; the next arg to be terminated
4368 is the name of a library file and we should try the standard
4369 search dirs for it. */
4370 static int this_is_library_file;
4372 /* Nonzero means that the input of this command is coming from a pipe. */
4373 static int input_from_pipe;
4375 /* Nonnull means substitute this for any suffix when outputting a switches
4377 static const char *suffix_subst;
4379 /* Process the spec SPEC and run the commands specified therein.
4380 Returns 0 if the spec is successfully processed; -1 if failed. */
4383 do_spec (const char *spec)
4387 value = do_spec_2 (spec);
4389 /* Force out any unfinished command.
4390 If -pipe, this forces out the last command if it ended in `|'. */
4393 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4396 set_collect_gcc_options ();
4398 if (argbuf_index > 0)
4406 do_spec_2 (const char *spec)
4413 delete_this_arg = 0;
4414 this_is_output_file = 0;
4415 this_is_library_file = 0;
4416 input_from_pipe = 0;
4417 suffix_subst = NULL;
4419 result = do_spec_1 (spec, 0, NULL);
4421 /* End any pending argument. */
4424 obstack_1grow (&obstack, 0);
4425 string = XOBFINISH (&obstack, const char *);
4426 if (this_is_library_file)
4427 string = find_file (string);
4428 store_arg (string, delete_this_arg, this_is_output_file);
4429 if (this_is_output_file)
4430 outfiles[input_file_number] = string;
4438 /* Process the given spec string and add any new options to the end
4439 of the switches/n_switches array. */
4442 do_option_spec (const char *name, const char *spec)
4444 unsigned int i, value_count, value_len;
4445 const char *p, *q, *value;
4446 char *tmp_spec, *tmp_spec_p;
4448 if (configure_default_options[0].name == NULL)
4451 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4452 if (strcmp (configure_default_options[i].name, name) == 0)
4454 if (i == ARRAY_SIZE (configure_default_options))
4457 value = configure_default_options[i].value;
4458 value_len = strlen (value);
4460 /* Compute the size of the final spec. */
4463 while ((p = strstr (p, "%(VALUE)")) != NULL)
4469 /* Replace each %(VALUE) by the specified value. */
4470 tmp_spec = alloca (strlen (spec) + 1
4471 + value_count * (value_len - strlen ("%(VALUE)")));
4472 tmp_spec_p = tmp_spec;
4474 while ((p = strstr (q, "%(VALUE)")) != NULL)
4476 memcpy (tmp_spec_p, q, p - q);
4477 tmp_spec_p = tmp_spec_p + (p - q);
4478 memcpy (tmp_spec_p, value, value_len);
4479 tmp_spec_p += value_len;
4480 q = p + strlen ("%(VALUE)");
4482 strcpy (tmp_spec_p, q);
4484 do_self_spec (tmp_spec);
4487 /* Process the given spec string and add any new options to the end
4488 of the switches/n_switches array. */
4491 do_self_spec (const char *spec)
4494 do_spec_1 (" ", 0, NULL);
4496 if (argbuf_index > 0)
4501 n_switches += argbuf_index;
4502 switches = xrealloc (switches,
4503 sizeof (struct switchstr) * (n_switches + 1));
4505 switches[n_switches] = switches[first];
4506 for (i = 0; i < argbuf_index; i++)
4508 struct switchstr *sw;
4510 /* Each switch should start with '-'. */
4511 if (argbuf[i][0] != '-')
4512 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4514 sw = &switches[i + first];
4515 sw->part1 = &argbuf[i][1];
4517 sw->live_cond = SWITCH_OK;
4524 /* Callback for processing %D and %I specs. */
4526 struct spec_path_info {
4531 bool separate_options;
4535 spec_path (char *path, void *data)
4537 struct spec_path_info *info = data;
4541 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
4544 if (info->append_len != 0)
4546 len = strlen (path);
4547 memcpy (path + len, info->append, info->append_len + 1);
4550 if (!is_directory (path, true))
4553 do_spec_1 (info->option, 1, NULL);
4554 if (info->separate_options)
4555 do_spec_1 (" ", 0, NULL);
4557 if (info->append_len == 0)
4559 len = strlen (path);
4560 save = path[len - 1];
4561 if (IS_DIR_SEPARATOR (path[len - 1]))
4562 path[len - 1] = '\0';
4565 do_spec_1 (path, 1, NULL);
4566 do_spec_1 (" ", 0, NULL);
4568 /* Must not damage the original path. */
4569 if (info->append_len == 0)
4570 path[len - 1] = save;
4575 /* Process the sub-spec SPEC as a portion of a larger spec.
4576 This is like processing a whole spec except that we do
4577 not initialize at the beginning and we do not supply a
4578 newline by default at the end.
4579 INSWITCH nonzero means don't process %-sequences in SPEC;
4580 in this case, % is treated as an ordinary character.
4581 This is used while substituting switches.
4582 INSWITCH nonzero also causes SPC not to terminate an argument.
4584 Value is zero unless a line was finished
4585 and the command on that line reported an error. */
4588 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
4590 const char *p = spec;
4597 /* If substituting a switch, treat all chars like letters.
4598 Otherwise, NL, SPC, TAB and % are special. */
4599 switch (inswitch ? 'a' : c)
4602 /* End of line: finish any pending argument,
4603 then run the pending command if one has been started. */
4606 obstack_1grow (&obstack, 0);
4607 string = XOBFINISH (&obstack, const char *);
4608 if (this_is_library_file)
4609 string = find_file (string);
4610 store_arg (string, delete_this_arg, this_is_output_file);
4611 if (this_is_output_file)
4612 outfiles[input_file_number] = string;
4616 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4618 /* A `|' before the newline means use a pipe here,
4619 but only if -pipe was specified.
4620 Otherwise, execute now and don't pass the `|' as an arg. */
4623 input_from_pipe = 1;
4630 set_collect_gcc_options ();
4632 if (argbuf_index > 0)
4638 /* Reinitialize for a new command, and for a new argument. */
4641 delete_this_arg = 0;
4642 this_is_output_file = 0;
4643 this_is_library_file = 0;
4644 input_from_pipe = 0;
4648 /* End any pending argument. */
4651 obstack_1grow (&obstack, 0);
4652 string = XOBFINISH (&obstack, const char *);
4653 if (this_is_library_file)
4654 string = find_file (string);
4655 store_arg (string, delete_this_arg, this_is_output_file);
4656 if (this_is_output_file)
4657 outfiles[input_file_number] = string;
4661 obstack_1grow (&obstack, c);
4667 /* Space or tab ends an argument if one is pending. */
4670 obstack_1grow (&obstack, 0);
4671 string = XOBFINISH (&obstack, const char *);
4672 if (this_is_library_file)
4673 string = find_file (string);
4674 store_arg (string, delete_this_arg, this_is_output_file);
4675 if (this_is_output_file)
4676 outfiles[input_file_number] = string;
4678 /* Reinitialize for a new argument. */
4680 delete_this_arg = 0;
4681 this_is_output_file = 0;
4682 this_is_library_file = 0;
4689 fatal ("spec '%s' invalid", spec);
4692 obstack_grow (&obstack, input_basename, basename_length);
4697 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4702 delete_this_arg = 2;
4705 /* Dump out the directories specified with LIBRARY_PATH,
4706 followed by the absolute directories
4707 that we search for startfiles. */
4710 struct spec_path_info info;
4713 info.append_len = 0;
4714 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4715 /* Used on systems which record the specified -L dirs
4716 and use them to search for dynamic linking.
4717 Relative directories always come from -B,
4718 and it is better not to use them for searching
4719 at run time. In particular, stage1 loses. */
4720 info.omit_relative = true;
4722 info.omit_relative = false;
4724 info.separate_options = false;
4726 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
4731 /* %efoo means report an error with `foo' as error message
4732 and don't execute any more commands for this file. */
4736 while (*p != 0 && *p != '\n')
4738 buf = alloca (p - q + 1);
4739 strncpy (buf, q, p - q);
4746 /* %nfoo means report a notice with `foo' on stderr. */
4750 while (*p != 0 && *p != '\n')
4752 buf = alloca (p - q + 1);
4753 strncpy (buf, q, p - q);
4755 notice ("%s\n", buf);
4765 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4766 defined, and it is not a directory, and it is
4767 writable, use it. Otherwise, treat this like any
4768 other temporary file. */
4770 if ((!save_temps_flag)
4771 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4772 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4774 obstack_grow (&obstack, HOST_BIT_BUCKET,
4775 strlen (HOST_BIT_BUCKET));
4776 delete_this_arg = 0;
4781 goto create_temp_file;
4785 obstack_1grow (&obstack, '-');
4786 delete_this_arg = 0;
4789 /* consume suffix */
4790 while (*p == '.' || ISALNUM ((unsigned char) *p))
4792 if (p[0] == '%' && p[1] == 'O')
4797 goto create_temp_file;
4801 /* consume suffix */
4802 while (*p == '.' || ISALNUM ((unsigned char) *p))
4804 if (p[0] == '%' && p[1] == 'O')
4809 goto create_temp_file;
4815 struct temp_name *t;
4817 const char *suffix = p;
4818 char *saved_suffix = NULL;
4820 while (*p == '.' || ISALNUM ((unsigned char) *p))
4822 suffix_length = p - suffix;
4823 if (p[0] == '%' && p[1] == 'O')
4826 /* We don't support extra suffix characters after %O. */
4827 if (*p == '.' || ISALNUM ((unsigned char) *p))
4828 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
4829 if (suffix_length == 0)
4830 suffix = TARGET_OBJECT_SUFFIX;
4834 = XNEWVEC (char, suffix_length
4835 + strlen (TARGET_OBJECT_SUFFIX));
4836 strncpy (saved_suffix, suffix, suffix_length);
4837 strcpy (saved_suffix + suffix_length,
4838 TARGET_OBJECT_SUFFIX);
4840 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4843 /* If the input_filename has the same suffix specified
4844 for the %g, %u, or %U, and -save-temps is specified,
4845 we could end up using that file as an intermediate
4846 thus clobbering the user's source file (.e.g.,
4847 gcc -save-temps foo.s would clobber foo.s with the
4848 output of cpp0). So check for this condition and
4849 generate a temp file as the intermediate. */
4851 if (save_temps_flag)
4853 temp_filename_length = basename_length + suffix_length;
4854 temp_filename = alloca (temp_filename_length + 1);
4855 strncpy ((char *) temp_filename, input_basename, basename_length);
4856 strncpy ((char *) temp_filename + basename_length, suffix,
4858 *((char *) temp_filename + temp_filename_length) = '\0';
4859 if (strcmp (temp_filename, input_filename) != 0)
4861 #ifndef HOST_LACKS_INODE_NUMBERS
4862 struct stat st_temp;
4864 /* Note, set_input() resets input_stat_set to 0. */
4865 if (input_stat_set == 0)
4867 input_stat_set = stat (input_filename, &input_stat);
4868 if (input_stat_set >= 0)
4872 /* If we have the stat for the input_filename
4873 and we can do the stat for the temp_filename
4874 then the they could still refer to the same
4875 file if st_dev/st_ino's are the same. */
4876 if (input_stat_set != 1
4877 || stat (temp_filename, &st_temp) < 0
4878 || input_stat.st_dev != st_temp.st_dev
4879 || input_stat.st_ino != st_temp.st_ino)
4881 /* Just compare canonical pathnames. */
4882 char* input_realname = lrealpath (input_filename);
4883 char* temp_realname = lrealpath (temp_filename);
4884 bool files_differ = strcmp (input_realname, temp_realname);
4885 free (input_realname);
4886 free (temp_realname);
4890 temp_filename = save_string (temp_filename,
4891 temp_filename_length + 1);
4892 obstack_grow (&obstack, temp_filename,
4893 temp_filename_length);
4895 delete_this_arg = 0;
4901 /* See if we already have an association of %g/%u/%U and
4903 for (t = temp_names; t; t = t->next)
4904 if (t->length == suffix_length
4905 && strncmp (t->suffix, suffix, suffix_length) == 0
4906 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
4909 /* Make a new association if needed. %u and %j
4911 if (t == 0 || c == 'u' || c == 'j')
4915 t = xmalloc (sizeof (struct temp_name));
4916 t->next = temp_names;
4919 t->length = suffix_length;
4922 t->suffix = saved_suffix;
4923 saved_suffix = NULL;
4926 t->suffix = save_string (suffix, suffix_length);
4927 t->unique = (c == 'u' || c == 'U' || c == 'j');
4928 temp_filename = make_temp_file (t->suffix);
4929 temp_filename_length = strlen (temp_filename);
4930 t->filename = temp_filename;
4931 t->filename_length = temp_filename_length;
4935 free (saved_suffix);
4937 obstack_grow (&obstack, t->filename, t->filename_length);
4938 delete_this_arg = 1;
4946 for (i = 0; (int) i < n_infiles; i++)
4947 if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
4948 if (infiles[i].incompiler == input_file_compiler)
4950 store_arg (infiles[i].name, 0, 0);
4951 infiles[i].compiled = true;
4956 obstack_grow (&obstack, input_filename, input_filename_length);
4963 struct spec_path_info info;
4967 do_spec_1 ("-imultilib", 1, NULL);
4968 /* Make this a separate argument. */
4969 do_spec_1 (" ", 0, NULL);
4970 do_spec_1 (multilib_dir, 1, NULL);
4971 do_spec_1 (" ", 0, NULL);
4974 if (gcc_exec_prefix)
4976 do_spec_1 ("-iprefix", 1, NULL);
4977 /* Make this a separate argument. */
4978 do_spec_1 (" ", 0, NULL);
4979 do_spec_1 (gcc_exec_prefix, 1, NULL);
4980 do_spec_1 (" ", 0, NULL);
4983 if (target_system_root_changed ||
4984 (target_system_root && target_sysroot_hdrs_suffix))
4986 do_spec_1 ("-isysroot", 1, NULL);
4987 /* Make this a separate argument. */
4988 do_spec_1 (" ", 0, NULL);
4989 do_spec_1 (target_system_root, 1, NULL);
4990 if (target_sysroot_hdrs_suffix)
4991 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
4992 do_spec_1 (" ", 0, NULL);
4995 info.option = "-isystem";
4996 info.append = "include";
4997 info.append_len = strlen (info.append);
4998 info.omit_relative = false;
4999 info.separate_options = true;
5001 for_each_path (&include_prefixes, false, info.append_len,
5008 int max = n_infiles;
5009 max += lang_specific_extra_outfiles;
5011 for (i = 0; i < max; i++)
5013 store_arg (outfiles[i], 0, 0);
5018 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5023 this_is_library_file = 1;
5027 outfiles[input_file_number] = NULL;
5031 this_is_output_file = 1;
5036 int cur_index = argbuf_index;
5037 /* Handle the {...} following the %W. */
5039 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5040 p = handle_braces (p + 1);
5043 /* End any pending argument. */
5046 obstack_1grow (&obstack, 0);
5047 string = XOBFINISH (&obstack, const char *);
5048 if (this_is_library_file)
5049 string = find_file (string);
5050 store_arg (string, delete_this_arg, this_is_output_file);
5051 if (this_is_output_file)
5052 outfiles[input_file_number] = string;
5055 /* If any args were output, mark the last one for deletion
5057 if (argbuf_index != cur_index)
5058 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5062 /* %x{OPTION} records OPTION for %X to output. */
5068 /* Skip past the option value and make a copy. */
5070 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5073 string = save_string (p1 + 1, p - p1 - 2);
5075 /* See if we already recorded this option. */
5076 for (i = 0; i < n_linker_options; i++)
5077 if (! strcmp (string, linker_options[i]))
5083 /* This option is new; add it. */
5084 add_linker_option (string, strlen (string));
5088 /* Dump out the options accumulated previously using %x. */
5090 for (i = 0; i < n_linker_options; i++)
5092 do_spec_1 (linker_options[i], 1, NULL);
5093 /* Make each accumulated option a separate argument. */
5094 do_spec_1 (" ", 0, NULL);
5098 /* Dump out the options accumulated previously using -Wa,. */
5100 for (i = 0; i < n_assembler_options; i++)
5102 do_spec_1 (assembler_options[i], 1, NULL);
5103 /* Make each accumulated option a separate argument. */
5104 do_spec_1 (" ", 0, NULL);
5108 /* Dump out the options accumulated previously using -Wp,. */
5110 for (i = 0; i < n_preprocessor_options; i++)
5112 do_spec_1 (preprocessor_options[i], 1, NULL);
5113 /* Make each accumulated option a separate argument. */
5114 do_spec_1 (" ", 0, NULL);
5118 /* Here are digits and numbers that just process
5119 a certain constant string as a spec. */
5122 value = do_spec_1 (cc1_spec, 0, NULL);
5128 value = do_spec_1 (cc1plus_spec, 0, NULL);
5134 value = do_spec_1 (asm_spec, 0, NULL);
5140 value = do_spec_1 (asm_final_spec, 0, NULL);
5147 const char *const spec
5148 = (input_file_compiler->cpp_spec
5149 ? input_file_compiler->cpp_spec
5151 value = do_spec_1 (spec, 0, NULL);
5158 value = do_spec_1 (endfile_spec, 0, NULL);
5164 value = do_spec_1 (link_spec, 0, NULL);
5170 value = do_spec_1 (lib_spec, 0, NULL);
5176 value = do_spec_1 (libgcc_spec, 0, NULL);
5182 /* We assume there is a directory
5183 separator at the end of this string. */
5184 if (target_system_root)
5186 obstack_grow (&obstack, target_system_root,
5187 strlen (target_system_root));
5188 if (target_sysroot_suffix)
5189 obstack_grow (&obstack, target_sysroot_suffix,
5190 strlen (target_sysroot_suffix));
5195 value = do_spec_1 (startfile_spec, 0, NULL);
5200 /* Here we define characters other than letters and digits. */
5203 p = handle_braces (p);
5209 p = handle_spec_function (p);
5215 obstack_1grow (&obstack, '%');
5222 while (p[len] && p[len] != ' ' && p[len] != '%')
5224 suffix_subst = save_string (p - 1, len + 1);
5229 /* Henceforth ignore the option(s) matching the pattern
5234 int have_wildcard = 0;
5237 while (p[len] && p[len] != ' ' && p[len] != '\t')
5240 if (p[len-1] == '*')
5243 for (i = 0; i < n_switches; i++)
5244 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5245 && (have_wildcard || switches[i].part1[len] == '\0'))
5247 switches[i].live_cond = SWITCH_IGNORE;
5248 switches[i].validated = 1;
5256 if (soft_matched_part)
5258 do_spec_1 (soft_matched_part, 1, NULL);
5259 do_spec_1 (" ", 0, NULL);
5262 /* Catch the case where a spec string contains something like
5263 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5264 hand side of the :. */
5265 error ("spec failure: '%%*' has not been initialized by pattern match");
5268 /* Process a string found as the value of a spec given by name.
5269 This feature allows individual machine descriptions
5270 to add and use their own specs.
5271 %[...] modifies -D options the way %P does;
5272 %(...) uses the spec unmodified. */
5274 error ("warning: use of obsolete %%[ operator in specs");
5277 const char *name = p;
5278 struct spec_list *sl;
5281 /* The string after the S/P is the name of a spec that is to be
5283 while (*p && *p != ')' && *p != ']')
5286 /* See if it's in the list. */
5287 for (len = p - name, sl = specs; sl; sl = sl->next)
5288 if (sl->name_len == len && !strncmp (sl->name, name, len))
5290 name = *(sl->ptr_spec);
5292 notice ("Processing spec %c%s%c, which is '%s'\n",
5293 c, sl->name, (c == '(') ? ')' : ']', name);
5302 value = do_spec_1 (name, 0, NULL);
5308 char *x = alloca (strlen (name) * 2 + 1);
5310 const char *y = name;
5313 /* Copy all of NAME into BUF, but put __ after
5314 every -D and at the end of each arg. */
5317 if (! strncmp (y, "-D", 2))
5328 && (*y == ' ' || *y == '\t' || *y == '='
5329 || *y == '}' || *y == 0))
5342 value = do_spec_1 (buf, 0, NULL);
5348 /* Discard the closing paren or bracket. */
5355 error ("spec failure: unrecognized spec option '%c'", c);
5361 /* Backslash: treat next character as ordinary. */
5366 /* Ordinary character: put it into the current argument. */
5367 obstack_1grow (&obstack, c);
5371 /* End of string. If we are processing a spec function, we need to
5372 end any pending argument. */
5373 if (processing_spec_function && arg_going)
5375 obstack_1grow (&obstack, 0);
5376 string = XOBFINISH (&obstack, const char *);
5377 if (this_is_library_file)
5378 string = find_file (string);
5379 store_arg (string, delete_this_arg, this_is_output_file);
5380 if (this_is_output_file)
5381 outfiles[input_file_number] = string;
5388 /* Look up a spec function. */
5390 static const struct spec_function *
5391 lookup_spec_function (const char *name)
5393 const struct spec_function *sf;
5395 for (sf = static_spec_functions; sf->name != NULL; sf++)
5396 if (strcmp (sf->name, name) == 0)
5402 /* Evaluate a spec function. */
5405 eval_spec_function (const char *func, const char *args)
5407 const struct spec_function *sf;
5408 const char *funcval;
5410 /* Saved spec processing context. */
5411 int save_argbuf_index;
5412 int save_argbuf_length;
5413 const char **save_argbuf;
5416 int save_delete_this_arg;
5417 int save_this_is_output_file;
5418 int save_this_is_library_file;
5419 int save_input_from_pipe;
5420 const char *save_suffix_subst;
5423 sf = lookup_spec_function (func);
5425 fatal ("unknown spec function '%s'", func);
5427 /* Push the spec processing context. */
5428 save_argbuf_index = argbuf_index;
5429 save_argbuf_length = argbuf_length;
5430 save_argbuf = argbuf;
5432 save_arg_going = arg_going;
5433 save_delete_this_arg = delete_this_arg;
5434 save_this_is_output_file = this_is_output_file;
5435 save_this_is_library_file = this_is_library_file;
5436 save_input_from_pipe = input_from_pipe;
5437 save_suffix_subst = suffix_subst;
5439 /* Create a new spec processing context, and build the function
5443 if (do_spec_2 (args) < 0)
5444 fatal ("error in args to spec function '%s'", func);
5446 /* argbuf_index is an index for the next argument to be inserted, and
5447 so contains the count of the args already inserted. */
5449 funcval = (*sf->func) (argbuf_index, argbuf);
5451 /* Pop the spec processing context. */
5452 argbuf_index = save_argbuf_index;
5453 argbuf_length = save_argbuf_length;
5455 argbuf = save_argbuf;
5457 arg_going = save_arg_going;
5458 delete_this_arg = save_delete_this_arg;
5459 this_is_output_file = save_this_is_output_file;
5460 this_is_library_file = save_this_is_library_file;
5461 input_from_pipe = save_input_from_pipe;
5462 suffix_subst = save_suffix_subst;
5467 /* Handle a spec function call of the form:
5471 ARGS is processed as a spec in a separate context and split into an
5472 argument vector in the normal fashion. The function returns a string
5473 containing a spec which we then process in the caller's context, or
5474 NULL if no processing is required. */
5477 handle_spec_function (const char *p)
5480 const char *endp, *funcval;
5483 processing_spec_function++;
5485 /* Get the function name. */
5486 for (endp = p; *endp != '\0'; endp++)
5488 if (*endp == '(') /* ) */
5490 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5491 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
5492 fatal ("malformed spec function name");
5494 if (*endp != '(') /* ) */
5495 fatal ("no arguments for spec function");
5496 func = save_string (p, endp - p);
5499 /* Get the arguments. */
5500 for (count = 0; *endp != '\0'; endp++)
5509 else if (*endp == '(') /* ) */
5514 fatal ("malformed spec function arguments");
5515 args = save_string (p, endp - p);
5518 /* p now points to just past the end of the spec function expression. */
5520 funcval = eval_spec_function (func, args);
5521 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
5527 processing_spec_function--;
5532 /* Inline subroutine of handle_braces. Returns true if the current
5533 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5535 input_suffix_matches (const char *atom, const char *end_atom)
5537 /* We special case the semantics of {.s:...} and {.S:...} and their
5538 negative variants. Instead of testing the input filename suffix,
5539 we test whether the input source file is an assembler file or an
5540 assembler-with-cpp file respectively. This allows us to correctly
5541 handle the -x command line option. */
5543 if (atom + 1 == end_atom
5544 && input_file_compiler
5545 && input_file_compiler->suffix)
5548 return !strcmp (input_file_compiler->suffix, "@assembler");
5550 return !strcmp (input_file_compiler->suffix, "@assembler-with-cpp");
5553 return (input_suffix
5554 && !strncmp (input_suffix, atom, end_atom - atom)
5555 && input_suffix[end_atom - atom] == '\0');
5558 /* Subroutine of handle_braces. Returns true if a switch
5559 matching the atom bracketed by ATOM and END_ATOM appeared on the
5562 switch_matches (const char *atom, const char *end_atom, int starred)
5565 int len = end_atom - atom;
5566 int plen = starred ? len : -1;
5568 for (i = 0; i < n_switches; i++)
5569 if (!strncmp (switches[i].part1, atom, len)
5570 && (starred || switches[i].part1[len] == '\0')
5571 && check_live_switch (i, plen))
5577 /* Inline subroutine of handle_braces. Mark all of the switches which
5578 match ATOM (extends to END_ATOM; STARRED indicates whether there
5579 was a star after the atom) for later processing. */
5581 mark_matching_switches (const char *atom, const char *end_atom, int starred)
5584 int len = end_atom - atom;
5585 int plen = starred ? len : -1;
5587 for (i = 0; i < n_switches; i++)
5588 if (!strncmp (switches[i].part1, atom, len)
5589 && (starred || switches[i].part1[len] == '\0')
5590 && check_live_switch (i, plen))
5591 switches[i].ordering = 1;
5594 /* Inline subroutine of handle_braces. Process all the currently
5595 marked switches through give_switch, and clear the marks. */
5597 process_marked_switches (void)
5601 for (i = 0; i < n_switches; i++)
5602 if (switches[i].ordering == 1)
5604 switches[i].ordering = 0;
5609 /* Handle a %{ ... } construct. P points just inside the leading {.
5610 Returns a pointer one past the end of the brace block, or 0
5611 if we call do_spec_1 and that returns -1. */
5614 handle_braces (const char *p)
5616 const char *atom, *end_atom;
5617 const char *d_atom = NULL, *d_end_atom = NULL;
5618 const char *orig = p;
5625 bool a_must_be_last = false;
5626 bool ordered_set = false;
5627 bool disjunct_set = false;
5628 bool disj_matched = false;
5629 bool disj_starred = true;
5630 bool n_way_choice = false;
5631 bool n_way_matched = false;
5633 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5640 /* Scan one "atom" (S in the description above of %{}, possibly
5641 with !, ., or * modifiers). */
5642 a_matched = a_is_suffix = a_is_starred = a_is_negated = false;
5646 p++, a_is_negated = true;
5650 p++, a_is_suffix = true;
5653 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
5654 || *p == ',' || *p == '.' || *p == '@')
5659 p++, a_is_starred = 1;
5665 /* Substitute the switch(es) indicated by the current atom. */
5667 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
5668 || atom == end_atom)
5671 mark_matching_switches (atom, end_atom, a_is_starred);
5674 process_marked_switches ();
5678 /* Substitute some text if the current atom appears as a switch
5680 disjunct_set = true;
5684 if (atom == end_atom)
5686 if (!n_way_choice || disj_matched || *p == '|'
5687 || a_is_negated || a_is_suffix || a_is_starred)
5690 /* An empty term may appear as the last choice of an
5691 N-way choice set; it means "otherwise". */
5692 a_must_be_last = true;
5693 disj_matched = !n_way_matched;
5694 disj_starred = false;
5698 if (a_is_suffix && a_is_starred)
5702 disj_starred = false;
5704 /* Don't bother testing this atom if we already have a
5706 if (!disj_matched && !n_way_matched)
5709 a_matched = input_suffix_matches (atom, end_atom);
5711 a_matched = switch_matches (atom, end_atom, a_is_starred);
5713 if (a_matched != a_is_negated)
5715 disj_matched = true;
5717 d_end_atom = end_atom;
5724 /* Found the body, that is, the text to substitute if the
5725 current disjunction matches. */
5726 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
5727 disj_matched && !n_way_matched);
5731 /* If we have an N-way choice, reset state for the next
5735 n_way_choice = true;
5736 n_way_matched |= disj_matched;
5737 disj_matched = false;
5738 disj_starred = true;
5739 d_atom = d_end_atom = NULL;
5748 while (*p++ != '}');
5753 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
5758 /* Subroutine of handle_braces. Scan and process a brace substitution body
5759 (X in the description of %{} syntax). P points one past the colon;
5760 ATOM and END_ATOM bracket the first atom which was found to be true
5761 (present) in the current disjunction; STARRED indicates whether all
5762 the atoms in the current disjunction were starred (for syntax validation);
5763 MATCHED indicates whether the disjunction matched or not, and therefore
5764 whether or not the body is to be processed through do_spec_1 or just
5765 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5769 process_brace_body (const char *p, const char *atom, const char *end_atom,
5770 int starred, int matched)
5772 const char *body, *end_body;
5773 unsigned int nesting_level;
5774 bool have_subst = false;
5776 /* Locate the closing } or ;, honoring nested braces.
5777 Trim trailing whitespace. */
5786 if (!--nesting_level)
5789 else if (*p == ';' && nesting_level == 1)
5791 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
5793 else if (*p == '\0')
5799 while (end_body[-1] == ' ' || end_body[-1] == '\t')
5802 if (have_subst && !starred)
5807 /* Copy the substitution body to permanent storage and execute it.
5808 If have_subst is false, this is a simple matter of running the
5809 body through do_spec_1... */
5810 char *string = save_string (body, end_body - body);
5813 if (do_spec_1 (string, 0, NULL) < 0)
5818 /* ... but if have_subst is true, we have to process the
5819 body once for each matching switch, with %* set to the
5820 variant part of the switch. */
5821 unsigned int hard_match_len = end_atom - atom;
5824 for (i = 0; i < n_switches; i++)
5825 if (!strncmp (switches[i].part1, atom, hard_match_len)
5826 && check_live_switch (i, hard_match_len))
5828 if (do_spec_1 (string, 0,
5829 &switches[i].part1[hard_match_len]) < 0)
5831 /* Pass any arguments this switch has. */
5833 suffix_subst = NULL;
5841 fatal ("braced spec body '%s' is invalid", body);
5844 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5845 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5846 spec, or -1 if either exact match or %* is used.
5848 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5849 whose value does not begin with "no-" is obsoleted by the same value
5850 with the "no-", similarly for a switch with the "no-" prefix. */
5853 check_live_switch (int switchnum, int prefix_length)
5855 const char *name = switches[switchnum].part1;
5858 /* In the common case of {<at-most-one-letter>*}, a negating
5859 switch would always match, so ignore that case. We will just
5860 send the conflicting switches to the compiler phase. */
5861 if (prefix_length >= 0 && prefix_length <= 1)
5864 /* If we already processed this switch and determined if it was
5865 live or not, return our past determination. */
5866 if (switches[switchnum].live_cond != 0)
5867 return switches[switchnum].live_cond > 0;
5869 /* Now search for duplicate in a manner that depends on the name. */
5873 for (i = switchnum + 1; i < n_switches; i++)
5874 if (switches[i].part1[0] == 'O')
5876 switches[switchnum].validated = 1;
5877 switches[switchnum].live_cond = SWITCH_FALSE;
5882 case 'W': case 'f': case 'm':
5883 if (! strncmp (name + 1, "no-", 3))
5885 /* We have Xno-YYY, search for XYYY. */
5886 for (i = switchnum + 1; i < n_switches; i++)
5887 if (switches[i].part1[0] == name[0]
5888 && ! strcmp (&switches[i].part1[1], &name[4]))
5890 switches[switchnum].validated = 1;
5891 switches[switchnum].live_cond = SWITCH_FALSE;
5897 /* We have XYYY, search for Xno-YYY. */
5898 for (i = switchnum + 1; i < n_switches; i++)
5899 if (switches[i].part1[0] == name[0]
5900 && switches[i].part1[1] == 'n'
5901 && switches[i].part1[2] == 'o'
5902 && switches[i].part1[3] == '-'
5903 && !strcmp (&switches[i].part1[4], &name[1]))
5905 switches[switchnum].validated = 1;
5906 switches[switchnum].live_cond = SWITCH_FALSE;
5913 /* Otherwise the switch is live. */
5914 switches[switchnum].live_cond = SWITCH_LIVE;
5918 /* Pass a switch to the current accumulating command
5919 in the same form that we received it.
5920 SWITCHNUM identifies the switch; it is an index into
5921 the vector of switches gcc received, which is `switches'.
5922 This cannot fail since it never finishes a command line.
5924 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5927 give_switch (int switchnum, int omit_first_word)
5929 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5932 if (!omit_first_word)
5934 do_spec_1 ("-", 0, NULL);
5935 do_spec_1 (switches[switchnum].part1, 1, NULL);
5938 if (switches[switchnum].args != 0)
5941 for (p = switches[switchnum].args; *p; p++)
5943 const char *arg = *p;
5945 do_spec_1 (" ", 0, NULL);
5948 unsigned length = strlen (arg);
5951 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5952 if (arg[length] == '.')
5954 ((char *)arg)[length] = 0;
5958 do_spec_1 (arg, 1, NULL);
5960 ((char *)arg)[length] = '.';
5961 do_spec_1 (suffix_subst, 1, NULL);
5964 do_spec_1 (arg, 1, NULL);
5968 do_spec_1 (" ", 0, NULL);
5969 switches[switchnum].validated = 1;
5972 /* Search for a file named NAME trying various prefixes including the
5973 user's -B prefix and some standard ones.
5974 Return the absolute file name found. If nothing is found, return NAME. */
5977 find_file (const char *name)
5979 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
5980 return newname ? newname : name;
5983 /* Determine whether a directory exists. If LINKER, return 0 for
5984 certain fixed names not needed by the linker. */
5987 is_directory (const char *path1, bool linker)
5994 /* Ensure the string ends with "/.". The resulting path will be a
5995 directory even if the given path is a symbolic link. */
5996 len1 = strlen (path1);
5997 path = alloca (3 + len1);
5998 memcpy (path, path1, len1);
6000 if (!IS_DIR_SEPARATOR (cp[-1]))
6001 *cp++ = DIR_SEPARATOR;
6005 /* Exclude directories that the linker is known to search. */
6007 && IS_DIR_SEPARATOR (path[0])
6009 && strncmp (path + 1, "lib", 3) == 0)
6011 && strncmp (path + 1, "usr", 3) == 0
6012 && IS_DIR_SEPARATOR (path[4])
6013 && strncmp (path + 5, "lib", 3) == 0)))
6016 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6019 /* Set up the various global variables to indicate that we're processing
6020 the input file named FILENAME. */
6023 set_input (const char *filename)
6027 input_filename = filename;
6028 input_filename_length = strlen (input_filename);
6030 input_basename = input_filename;
6031 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6032 /* Skip drive name so 'x:foo' is handled properly. */
6033 if (input_basename[1] == ':')
6034 input_basename += 2;
6036 for (p = input_basename; *p; p++)
6037 if (IS_DIR_SEPARATOR (*p))
6038 input_basename = p + 1;
6040 /* Find a suffix starting with the last period,
6041 and set basename_length to exclude that suffix. */
6042 basename_length = strlen (input_basename);
6043 suffixed_basename_length = basename_length;
6044 p = input_basename + basename_length;
6045 while (p != input_basename && *p != '.')
6047 if (*p == '.' && p != input_basename)
6049 basename_length = p - input_basename;
6050 input_suffix = p + 1;
6055 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6056 we will need to do a stat on the input_filename. The
6057 INPUT_STAT_SET signals that the stat is needed. */
6061 /* On fatal signals, delete all the temporary files. */
6064 fatal_error (int signum)
6066 signal (signum, SIG_DFL);
6067 delete_failure_queue ();
6068 delete_temp_files ();
6069 /* Get the same signal again, this time not handled,
6070 so its normal effect occurs. */
6071 kill (getpid (), signum);
6074 extern int main (int, char **);
6077 main (int argc, char **argv)
6081 int linker_was_run = 0;
6082 int lang_n_infiles = 0;
6083 int num_linker_inputs = 0;
6084 char *explicit_link_files;
6087 struct user_specs *uptr;
6089 p = argv[0] + strlen (argv[0]);
6090 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6094 xmalloc_set_program_name (programname);
6096 expandargv (&argc, &argv);
6098 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6099 /* Perform host dependent initialization when needed. */
6100 GCC_DRIVER_HOST_INITIALIZATION;
6103 /* Unlock the stdio streams. */
6104 unlock_std_streams ();
6106 gcc_init_libintl ();
6108 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6109 signal (SIGINT, fatal_error);
6111 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6112 signal (SIGHUP, fatal_error);
6114 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6115 signal (SIGTERM, fatal_error);
6117 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6118 signal (SIGPIPE, fatal_error);
6121 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6122 receive the signal. A different setting is inheritable */
6123 signal (SIGCHLD, SIG_DFL);
6126 /* Allocate the argument vector. */
6129 obstack_init (&obstack);
6131 /* Build multilib_select, et. al from the separate lines that make up each
6132 multilib selection. */
6134 const char *const *q = multilib_raw;
6137 obstack_init (&multilib_obstack);
6138 while ((p = *q++) != (char *) 0)
6139 obstack_grow (&multilib_obstack, p, strlen (p));
6141 obstack_1grow (&multilib_obstack, 0);
6142 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6144 q = multilib_matches_raw;
6145 while ((p = *q++) != (char *) 0)
6146 obstack_grow (&multilib_obstack, p, strlen (p));
6148 obstack_1grow (&multilib_obstack, 0);
6149 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6151 q = multilib_exclusions_raw;
6152 while ((p = *q++) != (char *) 0)
6153 obstack_grow (&multilib_obstack, p, strlen (p));
6155 obstack_1grow (&multilib_obstack, 0);
6156 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6159 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6162 obstack_1grow (&multilib_obstack, ' ');
6163 obstack_grow (&multilib_obstack,
6164 multilib_defaults_raw[i],
6165 strlen (multilib_defaults_raw[i]));
6169 obstack_1grow (&multilib_obstack, 0);
6170 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6173 /* Set up to remember the pathname of gcc and any options
6174 needed for collect. We use argv[0] instead of programname because
6175 we need the complete pathname. */
6176 obstack_init (&collect_obstack);
6177 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6178 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
6179 putenv (XOBFINISH (&collect_obstack, char *));
6181 #ifdef INIT_ENVIRONMENT
6182 /* Set up any other necessary machine specific environment variables. */
6183 putenv (INIT_ENVIRONMENT);
6186 /* Make a table of what switches there are (switches, n_switches).
6187 Make a table of specified input files (infiles, n_infiles).
6188 Decode switches that are handled locally. */
6190 process_command (argc, (const char **) argv);
6192 /* Initialize the vector of specs to just the default.
6193 This means one element containing 0s, as a terminator. */
6195 compilers = xmalloc (sizeof default_compilers);
6196 memcpy (compilers, default_compilers, sizeof default_compilers);
6197 n_compilers = n_default_compilers;
6199 /* Read specs from a file if there is one. */
6201 machine_suffix = concat (spec_machine, dir_separator_str,
6202 spec_version, dir_separator_str, NULL);
6203 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6205 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6206 /* Read the specs file unless it is a default one. */
6207 if (specs_file != 0 && strcmp (specs_file, "specs"))
6208 read_specs (specs_file, TRUE);
6212 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6213 for any override of as, ld and libraries. */
6214 specs_file = alloca (strlen (standard_exec_prefix)
6215 + strlen (just_machine_suffix) + sizeof ("specs"));
6217 strcpy (specs_file, standard_exec_prefix);
6218 strcat (specs_file, just_machine_suffix);
6219 strcat (specs_file, "specs");
6220 if (access (specs_file, R_OK) == 0)
6221 read_specs (specs_file, TRUE);
6223 /* Process any configure-time defaults specified for the command line
6224 options, via OPTION_DEFAULT_SPECS. */
6225 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6226 do_option_spec (option_default_specs[i].name,
6227 option_default_specs[i].spec);
6229 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6230 of the command line. */
6232 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6233 do_self_spec (driver_self_specs[i]);
6235 /* If not cross-compiling, look for executables in the standard
6237 if (*cross_compile == '0')
6239 if (*md_exec_prefix)
6241 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6242 PREFIX_PRIORITY_LAST, 0, 0);
6246 /* Process sysroot_suffix_spec. */
6247 if (*sysroot_suffix_spec != 0
6248 && do_spec_2 (sysroot_suffix_spec) == 0)
6250 if (argbuf_index > 1)
6251 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6252 else if (argbuf_index == 1)
6253 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6256 #ifdef HAVE_LD_SYSROOT
6257 /* Pass the --sysroot option to the linker, if it supports that. If
6258 there is a sysroot_suffix_spec, it has already been processed by
6259 this point, so target_system_root really is the system root we
6261 if (target_system_root)
6263 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6264 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6265 set_spec ("link", XOBFINISH (&obstack, const char *));
6269 /* Process sysroot_hdrs_suffix_spec. */
6270 if (*sysroot_hdrs_suffix_spec != 0
6271 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6273 if (argbuf_index > 1)
6274 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6275 else if (argbuf_index == 1)
6276 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6279 /* Look for startfiles in the standard places. */
6280 if (*startfile_prefix_spec != 0
6281 && do_spec_2 (startfile_prefix_spec) == 0
6282 && do_spec_1 (" ", 0, NULL) == 0)
6285 for (ndx = 0; ndx < argbuf_index; ndx++)
6286 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
6287 PREFIX_PRIORITY_LAST, 0, 1);
6289 /* We should eventually get rid of all these and stick to
6290 startfile_prefix_spec exclusively. */
6291 else if (*cross_compile == '0' || target_system_root)
6293 if (*md_startfile_prefix)
6294 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
6295 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6297 if (*md_startfile_prefix_1)
6298 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
6299 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6301 /* If standard_startfile_prefix is relative, base it on
6302 standard_exec_prefix. This lets us move the installed tree
6303 as a unit. If GCC_EXEC_PREFIX is defined, base
6304 standard_startfile_prefix on that as well.
6306 If the prefix is relative, only search it for native compilers;
6307 otherwise we will search a directory containing host libraries. */
6308 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
6309 add_sysrooted_prefix (&startfile_prefixes,
6310 standard_startfile_prefix, "BINUTILS",
6311 PREFIX_PRIORITY_LAST, 0, 1);
6312 else if (*cross_compile == '0')
6314 if (gcc_exec_prefix)
6315 add_prefix (&startfile_prefixes,
6316 concat (gcc_exec_prefix, machine_suffix,
6317 standard_startfile_prefix, NULL),
6318 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6319 add_prefix (&startfile_prefixes,
6320 concat (standard_exec_prefix,
6322 standard_startfile_prefix, NULL),
6323 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6326 if (*standard_startfile_prefix_1)
6327 add_sysrooted_prefix (&startfile_prefixes,
6328 standard_startfile_prefix_1, "BINUTILS",
6329 PREFIX_PRIORITY_LAST, 0, 1);
6330 if (*standard_startfile_prefix_2)
6331 add_sysrooted_prefix (&startfile_prefixes,
6332 standard_startfile_prefix_2, "BINUTILS",
6333 PREFIX_PRIORITY_LAST, 0, 1);
6336 /* Process any user specified specs in the order given on the command
6338 for (uptr = user_specs_head; uptr; uptr = uptr->next)
6340 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
6342 read_specs (filename ? filename : uptr->filename, FALSE);
6345 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6346 if (gcc_exec_prefix)
6347 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
6348 spec_version, dir_separator_str, NULL);
6350 /* Now we have the specs.
6351 Set the `valid' bits for switches that match anything in any spec. */
6353 validate_all_switches ();
6355 /* Now that we have the switches and the specs, set
6356 the subdirectory based on the options. */
6357 set_multilib_dir ();
6359 /* Warn about any switches that no pass was interested in. */
6361 for (i = 0; (int) i < n_switches; i++)
6362 if (! switches[i].validated)
6363 error ("unrecognized option '-%s'", switches[i].part1);
6365 /* Obey some of the options. */
6367 if (print_search_dirs)
6369 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
6370 printf (_("programs: %s\n"),
6371 build_search_list (&exec_prefixes, "", false, false));
6372 printf (_("libraries: %s\n"),
6373 build_search_list (&startfile_prefixes, "", false, true));
6377 if (print_file_name)
6379 printf ("%s\n", find_file (print_file_name));
6383 if (print_prog_name)
6385 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
6386 printf ("%s\n", (newname ? newname : print_prog_name));
6390 if (print_multi_lib)
6392 print_multilib_info ();
6396 if (print_multi_directory)
6398 if (multilib_dir == NULL)
6401 printf ("%s\n", multilib_dir);
6405 if (print_multi_os_directory)
6407 if (multilib_os_dir == NULL)
6410 printf ("%s\n", multilib_os_dir);
6414 if (target_help_flag)
6416 /* Print if any target specific options. */
6418 /* We do not exit here. Instead we have created a fake input file
6419 called 'target-dummy' which needs to be compiled, and we pass this
6420 on to the various sub-processes, along with the --target-help
6424 if (print_help_list)
6430 printf (_("\nFor bug reporting instructions, please see:\n"));
6431 printf ("%s.\n", bug_report_url);
6436 /* We do not exit here. Instead we have created a fake input file
6437 called 'help-dummy' which needs to be compiled, and we pass this
6438 on the various sub-processes, along with the --help switch. */
6446 notice ("Target: %s\n", spec_machine);
6447 notice ("Configured with: %s\n", configuration_arguments);
6449 #ifdef THREAD_MODEL_SPEC
6450 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6451 but there's no point in doing all this processing just to get
6452 thread_model back. */
6453 obstack_init (&obstack);
6454 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
6455 obstack_1grow (&obstack, '\0');
6456 thrmod = XOBFINISH (&obstack, const char *);
6458 thrmod = thread_model;
6461 notice ("Thread model: %s\n", thrmod);
6463 /* compiler_version is truncated at the first space when initialized
6464 from version string, so truncate version_string at the first space
6465 before comparing. */
6466 for (n = 0; version_string[n]; n++)
6467 if (version_string[n] == ' ')
6470 if (! strncmp (version_string, compiler_version, n)
6471 && compiler_version[n] == 0)
6472 notice ("gcc version %s\n", version_string);
6474 notice ("gcc driver version %s executing gcc version %s\n",
6475 version_string, compiler_version);
6481 if (n_infiles == added_libraries)
6482 fatal ("no input files");
6484 /* Make a place to record the compiler output file names
6485 that correspond to the input files. */
6488 i += lang_specific_extra_outfiles;
6489 outfiles = XCNEWVEC (const char *, i);
6491 /* Record which files were specified explicitly as link input. */
6493 explicit_link_files = XCNEWVEC (char, n_infiles);
6496 combine_inputs = true;
6498 combine_inputs = false;
6500 for (i = 0; (int) i < n_infiles; i++)
6502 const char *name = infiles[i].name;
6503 struct compiler *compiler = lookup_compiler (name,
6505 infiles[i].language);
6507 if (compiler && !(compiler->combinable))
6508 combine_inputs = false;
6510 if (lang_n_infiles > 0 && compiler != input_file_compiler
6511 && infiles[i].language && infiles[i].language[0] != '*')
6512 infiles[i].incompiler = compiler;
6516 input_file_compiler = compiler;
6517 infiles[i].incompiler = compiler;
6521 /* Since there is no compiler for this input file, assume it is a
6523 explicit_link_files[i] = 1;
6524 infiles[i].incompiler = NULL;
6526 infiles[i].compiled = false;
6527 infiles[i].preprocessed = false;
6530 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
6531 fatal ("cannot specify -o with -c or -S with multiple files");
6533 if (combine_flag && save_temps_flag)
6535 bool save_combine_inputs = combine_inputs;
6536 /* Must do a separate pre-processing pass for C & Objective-C files, to
6537 obtain individual .i files. */
6539 combine_inputs = false;
6540 for (i = 0; (int) i < n_infiles; i++)
6542 int this_file_error = 0;
6544 input_file_number = i;
6545 set_input (infiles[i].name);
6546 if (infiles[i].incompiler
6547 && (infiles[i].incompiler)->needs_preprocessing)
6548 input_file_compiler = infiles[i].incompiler;
6552 if (input_file_compiler)
6554 if (input_file_compiler->spec[0] == '#')
6556 error ("%s: %s compiler not installed on this system",
6557 input_filename, &input_file_compiler->spec[1]);
6558 this_file_error = 1;
6562 value = do_spec (input_file_compiler->spec);
6563 infiles[i].preprocessed = true;
6564 if (!have_o_argbuf_index)
6565 fatal ("spec '%s' is invalid", input_file_compiler->spec);
6566 infiles[i].name = argbuf[have_o_argbuf_index];
6567 infiles[i].incompiler
6568 = lookup_compiler (infiles[i].name,
6569 strlen (infiles[i].name),
6570 infiles[i].language);
6573 this_file_error = 1;
6577 if (this_file_error)
6579 delete_failure_queue ();
6583 clear_failure_queue ();
6585 combine_inputs = save_combine_inputs;
6588 for (i = 0; (int) i < n_infiles; i++)
6590 int this_file_error = 0;
6592 /* Tell do_spec what to substitute for %i. */
6594 input_file_number = i;
6595 set_input (infiles[i].name);
6597 if (infiles[i].compiled)
6600 /* Use the same thing in %o, unless cp->spec says otherwise. */
6602 outfiles[i] = input_filename;
6604 /* Figure out which compiler from the file's suffix. */
6606 if (! combine_inputs)
6608 = lookup_compiler (infiles[i].name, input_filename_length,
6609 infiles[i].language);
6611 input_file_compiler = infiles[i].incompiler;
6613 if (input_file_compiler)
6615 /* Ok, we found an applicable compiler. Run its spec. */
6617 if (input_file_compiler->spec[0] == '#')
6619 error ("%s: %s compiler not installed on this system",
6620 input_filename, &input_file_compiler->spec[1]);
6621 this_file_error = 1;
6625 value = do_spec (input_file_compiler->spec);
6626 infiles[i].compiled = true;
6628 this_file_error = 1;
6632 /* If this file's name does not contain a recognized suffix,
6633 record it as explicit linker input. */
6636 explicit_link_files[i] = 1;
6638 /* Clear the delete-on-failure queue, deleting the files in it
6639 if this compilation failed. */
6641 if (this_file_error)
6643 delete_failure_queue ();
6646 /* If this compilation succeeded, don't delete those files later. */
6647 clear_failure_queue ();
6650 /* Reset the input file name to the first compile/object file name, for use
6651 with %b in LINK_SPEC. We use the first input file that we can find
6652 a compiler to compile it instead of using infiles.language since for
6653 languages other than C we use aliases that we then lookup later. */
6658 for (i = 0; i < n_infiles ; i++)
6659 if (infiles[i].language && infiles[i].language[0] != '*')
6661 set_input (infiles[i].name);
6666 if (error_count == 0)
6668 /* Make sure INPUT_FILE_NUMBER points to first available open
6670 input_file_number = n_infiles;
6671 if (lang_specific_pre_link ())
6675 /* Determine if there are any linker input files. */
6676 num_linker_inputs = 0;
6677 for (i = 0; (int) i < n_infiles; i++)
6678 if (explicit_link_files[i] || outfiles[i] != NULL)
6679 num_linker_inputs++;
6681 /* Run ld to link all the compiler output files. */
6683 if (num_linker_inputs > 0 && error_count == 0)
6685 int tmp = execution_count;
6687 /* We'll use ld if we can't find collect2. */
6688 if (! strcmp (linker_name_spec, "collect2"))
6690 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
6692 linker_name_spec = "ld";
6694 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6696 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
6697 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
6699 value = do_spec (link_command_spec);
6702 linker_was_run = (tmp != execution_count);
6705 /* If options said don't run linker,
6706 complain about input files to be given to the linker. */
6708 if (! linker_was_run && error_count == 0)
6709 for (i = 0; (int) i < n_infiles; i++)
6710 if (explicit_link_files[i])
6711 error ("%s: linker input file unused because linking not done",
6714 /* Delete some or all of the temporary files we made. */
6717 delete_failure_queue ();
6718 delete_temp_files ();
6720 if (print_help_list)
6722 printf (("\nFor bug reporting instructions, please see:\n"));
6723 printf ("%s\n", bug_report_url);
6726 return (signal_count != 0 ? 2
6727 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6731 /* Find the proper compilation spec for the file name NAME,
6732 whose length is LENGTH. LANGUAGE is the specified language,
6733 or 0 if this file is to be passed to the linker. */
6735 static struct compiler *
6736 lookup_compiler (const char *name, size_t length, const char *language)
6738 struct compiler *cp;
6740 /* If this was specified by the user to be a linker input, indicate that. */
6741 if (language != 0 && language[0] == '*')
6744 /* Otherwise, look for the language, if one is spec'd. */
6747 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6748 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6751 error ("language %s not recognized", language);
6755 /* Look for a suffix. */
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))
6768 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6769 /* Look again, but case-insensitively this time. */
6771 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6773 if (/* The suffix `-' matches only the file name `-'. */
6774 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6775 || (strlen (cp->suffix) < length
6776 /* See if the suffix matches the end of NAME. */
6777 && ((!strcmp (cp->suffix,
6778 name + length - strlen (cp->suffix))
6779 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6780 && !strcasecmp (cp->suffix,
6781 name + length - strlen (cp->suffix)))
6787 if (cp >= compilers)
6789 if (cp->spec[0] != '@')
6790 /* A non-alias entry: return it. */
6793 /* An alias entry maps a suffix to a language.
6794 Search for the language; pass 0 for NAME and LENGTH
6795 to avoid infinite recursion if language not found. */
6796 return lookup_compiler (NULL, 0, cp->spec + 1);
6802 save_string (const char *s, int len)
6804 char *result = XNEWVEC (char, len + 1);
6806 memcpy (result, s, len);
6812 pfatal_with_name (const char *name)
6814 perror_with_name (name);
6815 delete_temp_files ();
6820 perror_with_name (const char *name)
6822 error ("%s: %s", name, xstrerror (errno));
6825 /* Output an error message and exit. */
6828 fancy_abort (const char *file, int line, const char *func)
6830 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
6833 /* Output an error message and exit. */
6836 fatal_ice (const char *cmsgid, ...)
6840 va_start (ap, cmsgid);
6842 fprintf (stderr, "%s: ", programname);
6843 vfprintf (stderr, _(cmsgid), ap);
6845 fprintf (stderr, "\n");
6846 delete_temp_files ();
6847 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
6851 fatal (const char *cmsgid, ...)
6855 va_start (ap, cmsgid);
6857 fprintf (stderr, "%s: ", programname);
6858 vfprintf (stderr, _(cmsgid), ap);
6860 fprintf (stderr, "\n");
6861 delete_temp_files ();
6865 /* The argument is actually c-format, not gcc-internal-format,
6866 but because functions with identical names are used through
6867 the rest of the compiler with gcc-internal-format, we just
6868 need to hope all users of these functions use the common
6869 subset between c-format and gcc-internal-format. */
6872 error (const char *gmsgid, ...)
6876 va_start (ap, gmsgid);
6877 fprintf (stderr, "%s: ", programname);
6878 vfprintf (stderr, _(gmsgid), ap);
6881 fprintf (stderr, "\n");
6885 notice (const char *cmsgid, ...)
6889 va_start (ap, cmsgid);
6890 vfprintf (stderr, _(cmsgid), ap);
6895 validate_switches_from_spec (const char *spec)
6897 const char *p = spec;
6900 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
6901 /* We have a switch spec. */
6902 p = validate_switches (p + 1);
6906 validate_all_switches (void)
6908 struct compiler *comp;
6909 struct spec_list *spec;
6911 for (comp = compilers; comp->spec; comp++)
6912 validate_switches_from_spec (comp->spec);
6914 /* Look through the linked list of specs read from the specs file. */
6915 for (spec = specs; spec; spec = spec->next)
6916 validate_switches_from_spec (*spec->ptr_spec);
6918 validate_switches_from_spec (link_command_spec);
6921 /* Look at the switch-name that comes after START
6922 and mark as valid all supplied switches that match it. */
6925 validate_switches (const char *start)
6927 const char *p = start;
6931 bool suffix = false;
6932 bool starred = false;
6934 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6947 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
6948 || *p == ',' || *p == '.' || *p == '@')
6953 starred = true, p++;
6959 /* Mark all matching switches as valid. */
6960 for (i = 0; i < n_switches; i++)
6961 if (!strncmp (switches[i].part1, atom, len)
6962 && (starred || switches[i].part1[len] == 0))
6963 switches[i].validated = 1;
6967 if (*p && (p[-1] == '|' || p[-1] == '&'))
6970 if (*p && p[-1] == ':')
6972 while (*p && *p != ';' && *p != '}')
6977 if (*p == '{' || *p == '<')
6978 p = validate_switches (p+1);
6979 else if (p[0] == 'W' && p[1] == '{')
6980 p = validate_switches (p+2);
6987 if (*p && p[-1] == ';')
7001 static struct mdswitchstr *mdswitches;
7002 static int n_mdswitches;
7004 /* Check whether a particular argument was used. The first time we
7005 canonicalize the switches to keep only the ones we care about. */
7008 used_arg (const char *p, int len)
7013 const char *replace;
7018 static struct mswitchstr *mswitches;
7019 static int n_mswitches;
7024 struct mswitchstr *matches;
7028 /* Break multilib_matches into the component strings of string
7029 and replacement string. */
7030 for (q = multilib_matches; *q != '\0'; q++)
7034 matches = alloca ((sizeof (struct mswitchstr)) * cnt);
7036 q = multilib_matches;
7045 fatal ("multilib spec '%s' is invalid", multilib_matches);
7049 matches[i].len = q - matches[i].str;
7051 matches[i].replace = ++q;
7052 while (*q != ';' && *q != '\0')
7055 goto invalid_matches;
7058 matches[i].rep_len = q - matches[i].replace;
7064 /* Now build a list of the replacement string for switches that we care
7065 about. Make sure we allocate at least one entry. This prevents
7066 xmalloc from calling fatal, and prevents us from re-executing this
7069 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7070 for (i = 0; i < n_switches; i++)
7071 if (switches[i].live_cond != SWITCH_IGNORE)
7073 int xlen = strlen (switches[i].part1);
7074 for (j = 0; j < cnt; j++)
7075 if (xlen == matches[j].len
7076 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7078 mswitches[n_mswitches].str = matches[j].replace;
7079 mswitches[n_mswitches].len = matches[j].rep_len;
7080 mswitches[n_mswitches].replace = (char *) 0;
7081 mswitches[n_mswitches].rep_len = 0;
7087 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7088 on the command line nor any options mutually incompatible with
7090 for (i = 0; i < n_mdswitches; i++)
7094 for (q = multilib_options; *q != '\0'; q++)
7100 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7101 || strchr (" /", q[mdswitches[i].len]) == NULL)
7103 while (*q != ' ' && *q != '/' && *q != '\0')
7110 if (*q != ' ' && *q != '\0')
7112 while (*r != ' ' && *r != '\0')
7115 while (*q != ' ' && *q != '/' && *q != '\0')
7118 if (used_arg (r, q - r))
7123 mswitches[n_mswitches].str = mdswitches[i].str;
7124 mswitches[n_mswitches].len = mdswitches[i].len;
7125 mswitches[n_mswitches].replace = (char *) 0;
7126 mswitches[n_mswitches].rep_len = 0;
7139 for (i = 0; i < n_mswitches; i++)
7140 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
7147 default_arg (const char *p, int len)
7151 for (i = 0; i < n_mdswitches; i++)
7152 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
7158 /* Work out the subdirectory to use based on the options. The format of
7159 multilib_select is a list of elements. Each element is a subdirectory
7160 name followed by a list of options followed by a semicolon. The format
7161 of multilib_exclusions is the same, but without the preceding
7162 directory. First gcc will check the exclusions, if none of the options
7163 beginning with an exclamation point are present, and all of the other
7164 options are present, then we will ignore this completely. Passing
7165 that, gcc will consider each multilib_select in turn using the same
7166 rules for matching the options. If a match is found, that subdirectory
7170 set_multilib_dir (void)
7173 unsigned int this_path_len;
7174 const char *this_path, *this_arg;
7175 const char *start, *end;
7177 int ok, ndfltok, first;
7180 start = multilib_defaults;
7181 while (*start == ' ' || *start == '\t')
7183 while (*start != '\0')
7186 while (*start != ' ' && *start != '\t' && *start != '\0')
7188 while (*start == ' ' || *start == '\t')
7196 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
7197 for (start = multilib_defaults; *start != '\0'; start = end + 1)
7199 while (*start == ' ' || *start == '\t')
7205 for (end = start + 1;
7206 *end != ' ' && *end != '\t' && *end != '\0'; end++)
7209 obstack_grow (&multilib_obstack, start, end - start);
7210 obstack_1grow (&multilib_obstack, 0);
7211 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
7212 mdswitches[i++].len = end - start;
7219 p = multilib_exclusions;
7222 /* Ignore newlines. */
7229 /* Check the arguments. */
7236 fatal ("multilib exclusions '%s' is invalid",
7237 multilib_exclusions);
7247 while (*p != ' ' && *p != ';')
7250 goto invalid_exclusions;
7254 if (*this_arg != '!')
7262 ok = used_arg (this_arg, p - this_arg);
7277 p = multilib_select;
7280 /* Ignore newlines. */
7287 /* Get the initial path. */
7294 fatal ("multilib select '%s' is invalid",
7299 this_path_len = p - this_path;
7301 /* Check the arguments. */
7308 goto invalid_select;
7317 while (*p != ' ' && *p != ';')
7320 goto invalid_select;
7324 if (*this_arg != '!')
7332 /* If this is a default argument, we can just ignore it.
7333 This is true even if this_arg begins with '!'. Beginning
7334 with '!' does not mean that this argument is necessarily
7335 inappropriate for this library: it merely means that
7336 there is a more specific library which uses this
7337 argument. If this argument is a default, we need not
7338 consider that more specific library. */
7339 ok = used_arg (this_arg, p - this_arg);
7346 if (default_arg (this_arg, p - this_arg))
7355 if (this_path_len != 1
7356 || this_path[0] != '.')
7358 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
7361 strncpy (new_multilib_dir, this_path, this_path_len);
7362 new_multilib_dir[this_path_len] = '\0';
7363 q = strchr (new_multilib_dir, ':');
7366 multilib_dir = new_multilib_dir;
7373 const char *q = this_path, *end = this_path + this_path_len;
7375 while (q < end && *q != ':')
7379 char *new_multilib_os_dir = XNEWVEC (char, end - q);
7380 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
7381 new_multilib_os_dir[end - q - 1] = '\0';
7382 multilib_os_dir = new_multilib_os_dir;
7390 if (multilib_dir == NULL && multilib_os_dir != NULL
7391 && strcmp (multilib_os_dir, ".") == 0)
7393 free ((char *) multilib_os_dir);
7394 multilib_os_dir = NULL;
7396 else if (multilib_dir != NULL && multilib_os_dir == NULL)
7397 multilib_os_dir = multilib_dir;
7400 /* Print out the multiple library subdirectory selection
7401 information. This prints out a series of lines. Each line looks
7402 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7403 required. Only the desired options are printed out, the negative
7404 matches. The options are print without a leading dash. There are
7405 no spaces to make it easy to use the information in the shell.
7406 Each subdirectory is printed only once. This assumes the ordering
7407 generated by the genmultilib script. Also, we leave out ones that match
7411 print_multilib_info (void)
7413 const char *p = multilib_select;
7414 const char *last_path = 0, *this_path;
7416 unsigned int last_path_len = 0;
7421 /* Ignore newlines. */
7428 /* Get the initial path. */
7435 fatal ("multilib select '%s' is invalid", multilib_select);
7441 /* When --disable-multilib was used but target defines
7442 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7443 to find multilib_os_dir, so skip them from output. */
7444 if (this_path[0] == '.' && this_path[1] == ':')
7447 /* Check for matches with the multilib_exclusions. We don't bother
7448 with the '!' in either list. If any of the exclusion rules match
7449 all of its options with the select rule, we skip it. */
7451 const char *e = multilib_exclusions;
7452 const char *this_arg;
7457 /* Ignore newlines. */
7464 /* Check the arguments. */
7473 fatal ("multilib exclusion '%s' is invalid",
7474 multilib_exclusions);
7485 while (*e != ' ' && *e != ';')
7488 goto invalid_exclusion;
7496 int len = e - this_arg;
7499 goto invalid_select;
7503 while (*q != ' ' && *q != ';')
7506 goto invalid_select;
7510 if (! strncmp (arg, this_arg,
7511 (len < q - arg) ? q - arg : len)
7512 || default_arg (this_arg, e - this_arg))
7542 /* If this is a duplicate, skip it. */
7543 skip = (last_path != 0
7544 && (unsigned int) (p - this_path) == last_path_len
7545 && ! strncmp (last_path, this_path, last_path_len));
7547 last_path = this_path;
7548 last_path_len = p - this_path;
7551 /* If this directory requires any default arguments, we can skip
7552 it. We will already have printed a directory identical to
7553 this one which does not require that default argument. */
7564 goto invalid_select;
7571 while (*q != ' ' && *q != ';')
7574 goto invalid_select;
7579 && default_arg (arg, q - arg))
7594 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
7605 goto invalid_select;
7613 use_arg = *p != '!';
7618 while (*p != ' ' && *p != ';')
7621 goto invalid_select;
7633 /* If there are extra options, print them now. */
7634 if (multilib_extra && *multilib_extra)
7636 int print_at = TRUE;
7639 for (q = multilib_extra; *q != '\0'; q++)
7660 /* if-exists built-in spec function.
7662 Checks to see if the file specified by the absolute pathname in
7663 ARGS exists. Returns that pathname if found.
7665 The usual use for this function is to check for a library file
7666 (whose name has been expanded with %s). */
7669 if_exists_spec_function (int argc, const char **argv)
7671 /* Must have only one argument. */
7672 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7678 /* if-exists-else built-in spec function.
7680 This is like if-exists, but takes an additional argument which
7681 is returned if the first argument does not exist. */
7684 if_exists_else_spec_function (int argc, const char **argv)
7686 /* Must have exactly two arguments. */
7690 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7696 /* replace-outfile built-in spec function.
7698 This looks for the first argument in the outfiles array's name and
7699 replaces it with the second argument. */
7702 replace_outfile_spec_function (int argc, const char **argv)
7705 /* Must have exactly two arguments. */
7709 for (i = 0; i < n_infiles; i++)
7711 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
7712 outfiles[i] = xstrdup (argv[1]);
7717 /* Given two version numbers, compares the two numbers.
7718 A version number must match the regular expression
7719 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7722 compare_version_strings (const char *v1, const char *v2)
7727 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7728 REG_EXTENDED | REG_NOSUB) != 0)
7730 rresult = regexec (&r, v1, 0, NULL, 0);
7731 if (rresult == REG_NOMATCH)
7732 fatal ("invalid version number `%s'", v1);
7733 else if (rresult != 0)
7735 rresult = regexec (&r, v2, 0, NULL, 0);
7736 if (rresult == REG_NOMATCH)
7737 fatal ("invalid version number `%s'", v2);
7738 else if (rresult != 0)
7741 return strverscmp (v1, v2);
7745 /* version_compare built-in spec function.
7747 This takes an argument of the following form:
7749 <comparison-op> <arg1> [<arg2>] <switch> <result>
7751 and produces "result" if the comparison evaluates to true,
7752 and nothing if it doesn't.
7754 The supported <comparison-op> values are:
7756 >= true if switch is a later (or same) version than arg1
7758 < true if switch is an earlier version than arg1
7760 >< true if switch is arg1 or later, and earlier than arg2
7761 <> true if switch is earlier than arg1 or is arg2 or later
7763 If the switch is not present, the condition is false unless
7764 the first character of the <comparison-op> is '!'.
7767 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7768 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7771 version_compare_spec_function (int argc, const char **argv)
7775 const char *switch_value = NULL;
7780 fatal ("too few arguments to %%:version-compare");
7781 if (argv[0][0] == '\0')
7783 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
7785 if (argc != nargs + 3)
7786 fatal ("too many arguments to %%:version-compare");
7788 switch_len = strlen (argv[nargs + 1]);
7789 for (i = 0; i < n_switches; i++)
7790 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
7791 && check_live_switch (i, switch_len))
7792 switch_value = switches[i].part1 + switch_len;
7794 if (switch_value == NULL)
7798 comp1 = compare_version_strings (switch_value, argv[1]);
7800 comp2 = compare_version_strings (switch_value, argv[2]);
7802 comp2 = -1; /* This value unused. */
7805 switch (argv[0][0] << 8 | argv[0][1])
7807 case '>' << 8 | '=':
7808 result = comp1 >= 0;
7810 case '!' << 8 | '<':
7811 result = comp1 >= 0 || switch_value == NULL;
7816 case '!' << 8 | '>':
7817 result = comp1 < 0 || switch_value == NULL;
7819 case '>' << 8 | '<':
7820 result = comp1 >= 0 && comp2 < 0;
7822 case '<' << 8 | '>':
7823 result = comp1 < 0 || comp2 >= 0;
7827 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
7832 return argv[nargs + 2];
7835 /* %:include builtin spec function. This differs from %include in that it
7836 can be nested inside a spec, and thus be conditionalized. It takes
7837 one argument, the filename, and looks for it in the startfile path.
7838 The result is always NULL, i.e. an empty expansion. */
7841 include_spec_function (int argc, const char **argv)
7848 file = find_a_file (&startfile_prefixes, argv[0], R_OK, 0);
7849 read_specs (file ? file : argv[0], FALSE);