1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 This paragraph is here to try to keep Sun CC from dying.
24 The number of chars here seems crucial!!!! */
26 /* This program is the user interface to the C compiler and possibly to
27 other compilers. It is used because compilation is a complicated procedure
28 which involves running several programs and passing temporary files between
29 them, forwarding the users switches to those programs selectively,
30 and deleting the temporary files at the end.
32 CC recognizes how to compile each input file by suffixes in the file names.
33 Once it knows which kind of compilation to perform, the procedure for
34 compilation is specified by a string called a "spec". */
36 /* A Short Introduction to Adding a Command-Line Option.
38 Before adding a command-line option, consider if it is really
39 necessary. Each additional command-line option adds complexity and
40 is difficult to remove in subsequent versions.
42 In the following, consider adding the command-line argument
45 1. Each command-line option is specified in the specs file. The
46 notation is described below in the comment entitled "The Specs
49 2. In this file, add an entry to "option_map" equating the long
50 `--' argument version and any shorter, single letter version. Read
51 the comments in the declaration of "struct option_map" for an
52 explanation. Do not omit the first `-'.
54 3. Look in the "specs" file to determine which program or option
55 list should be given the argument, e.g., "cc1_options". Add the
56 appropriate syntax for the shorter option version to the
57 corresponding "const char *" entry in this file. Omit the first
58 `-' from the option. For example, use `-bar', rather than `--bar'.
60 4. If the argument takes an argument, e.g., `--baz argument1',
61 modify either DEFAULT_SWITCH_TAKES_ARG or
62 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
65 5. Document the option in this file's display_help(). If the
66 option is passed to a subprogram, modify its corresponding
67 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
70 6. Compile and test. Make sure that your new specs file is being
71 read. For example, use a debugger to investigate the value of
72 "specs_file" in main(). */
76 #include "coretypes.h"
77 #include "multilib.h" /* before tm.h */
80 #if ! defined( SIGCHLD ) && defined( SIGCLD )
81 # define SIGCHLD SIGCLD
91 /* By default there is no special suffix for target executables. */
92 /* FIXME: when autoconf is fixed, remove the host check - dj */
93 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
94 #define HAVE_TARGET_EXECUTABLE_SUFFIX
97 /* By default there is no special suffix for host executables. */
98 #ifdef HOST_EXECUTABLE_SUFFIX
99 #define HAVE_HOST_EXECUTABLE_SUFFIX
101 #define HOST_EXECUTABLE_SUFFIX ""
104 /* By default, the suffix for target object files is ".o". */
105 #ifdef TARGET_OBJECT_SUFFIX
106 #define HAVE_TARGET_OBJECT_SUFFIX
108 #define TARGET_OBJECT_SUFFIX ".o"
111 static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
113 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
114 #ifndef LIBRARY_PATH_ENV
115 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
119 #define kill(p,s) raise(s)
122 /* If a stage of compilation returns an exit status >= 1,
123 compilation of that file ceases. */
125 #define MIN_FATAL_STATUS 1
127 /* Flag set by cppspec.c to 1. */
130 /* Flag saying to pass the greatest exit code returned by a sub-process
131 to the calling program. */
132 static int pass_exit_codes;
134 /* Definition of string containing the arguments given to configure. */
135 #include "configargs.h"
137 /* Flag saying to print the directories gcc will search through looking for
138 programs, libraries, etc. */
140 static int print_search_dirs;
142 /* Flag saying to print the full filename of this file
143 as found through our usual search mechanism. */
145 static const char *print_file_name = NULL;
147 /* As print_file_name, but search for executable file. */
149 static const char *print_prog_name = NULL;
151 /* Flag saying to print the relative path we'd use to
152 find libgcc.a given the current compiler flags. */
154 static int print_multi_directory;
156 /* Flag saying to print the relative path we'd use to
157 find OS libraries given the current compiler flags. */
159 static int print_multi_os_directory;
161 /* Flag saying to print the list of subdirectories and
162 compiler flags used to select them in a standard form. */
164 static int print_multi_lib;
166 /* Flag saying to print the command line options understood by gcc and its
169 static int print_help_list;
171 /* Flag saying to print the sysroot suffix used for searching for
174 static int print_sysroot_headers_suffix;
176 /* Flag indicating whether we should print the command and arguments */
178 static int verbose_flag;
180 /* Flag indicating whether we should ONLY print the command and
181 arguments (like verbose_flag) without executing the command.
182 Displayed arguments are quoted so that the generated command
183 line is suitable for execution. This is intended for use in
184 shell scripts to capture the driver-generated command line. */
185 static int verbose_only_flag;
187 /* Flag indicating how to print command line options of sub-processes. */
189 static int print_subprocess_help;
191 /* Flag indicating whether we should report subprocess execution times
192 (if this is supported by the system - see pexecute.c). */
194 static int report_times;
196 /* Nonzero means place this string before uses of /, so that include
197 and library files can be found in an alternate location. */
199 #ifdef TARGET_SYSTEM_ROOT
200 static const char *target_system_root = TARGET_SYSTEM_ROOT;
202 static const char *target_system_root = 0;
205 /* Nonzero means pass the updated target_system_root to the compiler. */
207 static int target_system_root_changed;
209 /* Nonzero means append this string to target_system_root. */
211 static const char *target_sysroot_suffix = 0;
213 /* Nonzero means append this string to target_system_root for headers. */
215 static const char *target_sysroot_hdrs_suffix = 0;
217 /* Nonzero means write "temp" files in source directory
218 and use the source file's name in them, and don't delete them. */
220 static int save_temps_flag;
222 /* Nonzero means pass multiple source files to the compiler at one time. */
224 static int combine_flag = 0;
226 /* Nonzero means use pipes to communicate between subprocesses.
227 Overridden by either of the above two flags. */
229 static int use_pipes;
231 /* The compiler version. */
233 static const char *compiler_version;
235 /* The target version specified with -V */
237 static const char *const spec_version = DEFAULT_TARGET_VERSION;
239 /* The target machine specified with -b. */
241 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
243 /* Nonzero if cross-compiling.
244 When -b is used, the value comes from the `specs' file. */
246 #ifdef CROSS_DIRECTORY_STRUCTURE
247 static const char *cross_compile = "1";
249 static const char *cross_compile = "0";
252 #ifdef MODIFY_TARGET_NAME
254 /* Information on how to alter the target name based on a command-line
255 switch. The only case we support now is simply appending or deleting a
256 string to or from the end of the first part of the configuration name. */
258 static const struct modify_target
260 const char *const sw;
261 const enum add_del {ADD, DELETE} add_del;
262 const char *const str;
264 modify_target[] = MODIFY_TARGET_NAME;
267 /* The number of errors that have occurred; the link phase will not be
268 run if this is nonzero. */
269 static int error_count = 0;
271 /* Greatest exit code of sub-processes that has been encountered up to
273 static int greatest_status = 1;
275 /* This is the obstack which we use to allocate many strings. */
277 static struct obstack obstack;
279 /* This is the obstack to build an environment variable to pass to
280 collect2 that describes all of the relevant switches of what to
281 pass the compiler in building the list of pointers to constructors
284 static struct obstack collect_obstack;
286 /* Forward declaration for prototypes. */
290 static void init_spec (void);
291 static void store_arg (const char *, int, int);
292 static char *load_specs (const char *);
293 static void read_specs (const char *, int);
294 static void set_spec (const char *, const char *);
295 static struct compiler *lookup_compiler (const char *, size_t, const char *);
296 static char *build_search_list (const struct path_prefix *, const char *,
298 static void putenv_from_prefixes (const struct path_prefix *, const char *,
300 static int access_check (const char *, int);
301 static char *find_a_file (const struct path_prefix *, const char *, int, bool);
302 static void add_prefix (struct path_prefix *, const char *, const char *,
304 static void add_sysrooted_prefix (struct path_prefix *, const char *,
305 const char *, int, int, int);
306 static void translate_options (int *, const char *const **);
307 static char *skip_whitespace (char *);
308 static void delete_if_ordinary (const char *);
309 static void delete_temp_files (void);
310 static void delete_failure_queue (void);
311 static void clear_failure_queue (void);
312 static int check_live_switch (int, int);
313 static const char *handle_braces (const char *);
314 static inline bool input_suffix_matches (const char *, const char *);
315 static inline bool switch_matches (const char *, const char *, int);
316 static inline void mark_matching_switches (const char *, const char *, int);
317 static inline void process_marked_switches (void);
318 static const char *process_brace_body (const char *, const char *, const char *, int, int);
319 static const struct spec_function *lookup_spec_function (const char *);
320 static const char *eval_spec_function (const char *, const char *);
321 static const char *handle_spec_function (const char *);
322 static char *save_string (const char *, int);
323 static void set_collect_gcc_options (void);
324 static int do_spec_1 (const char *, int, const char *);
325 static int do_spec_2 (const char *);
326 static void do_option_spec (const char *, const char *);
327 static void do_self_spec (const char *);
328 static const char *find_file (const char *);
329 static int is_directory (const char *, bool);
330 static const char *validate_switches (const char *);
331 static void validate_all_switches (void);
332 static inline void validate_switches_from_spec (const char *);
333 static void give_switch (int, int);
334 static int used_arg (const char *, int);
335 static int default_arg (const char *, int);
336 static void set_multilib_dir (void);
337 static void print_multilib_info (void);
338 static void perror_with_name (const char *);
339 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
340 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
341 static void display_help (void);
342 static void add_preprocessor_option (const char *, int);
343 static void add_assembler_option (const char *, int);
344 static void add_linker_option (const char *, int);
345 static void process_command (int, const char **);
346 static int execute (void);
347 static void alloc_args (void);
348 static void clear_args (void);
349 static void fatal_error (int);
350 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
351 static void init_gcc_specs (struct obstack *, const char *, const char *,
354 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
355 static const char *convert_filename (const char *, int, int);
358 static const char *getenv_spec_function (int, const char **);
359 static const char *if_exists_spec_function (int, const char **);
360 static const char *if_exists_else_spec_function (int, const char **);
361 static const char *replace_outfile_spec_function (int, const char **);
362 static const char *version_compare_spec_function (int, const char **);
363 static const char *include_spec_function (int, const char **);
365 /* The Specs Language
367 Specs are strings containing lines, each of which (if not blank)
368 is made up of a program name, and arguments separated by spaces.
369 The program name must be exact and start from root, since no path
370 is searched and it is unreliable to depend on the current working directory.
371 Redirection of input or output is not supported; the subprograms must
372 accept filenames saying what files to read and write.
374 In addition, the specs can contain %-sequences to substitute variable text
375 or for conditional text. Here is a table of all defined %-sequences.
376 Note that spaces are not generated automatically around the results of
377 expanding these sequences; therefore, you can concatenate them together
378 or with constant text in a single argument.
380 %% substitute one % into the program name or argument.
381 %i substitute the name of the input file being processed.
382 %b substitute the basename of the input file being processed.
383 This is the substring up to (and not including) the last period
384 and not including the directory.
385 %B same as %b, but include the file suffix (text after the last period).
387 substitute a file name that has suffix SUFFIX and is chosen
388 once per compilation, and mark the argument a la %d. To reduce
389 exposure to denial-of-service attacks, the file name is now
390 chosen in a way that is hard to predict even when previously
391 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
392 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
393 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
394 had been pre-processed. Previously, %g was simply substituted
395 with a file name chosen once per compilation, without regard
396 to any appended suffix (which was therefore treated just like
397 ordinary text), making such attacks more likely to succeed.
399 like %g, but if -pipe is in effect, expands simply to "-".
401 like %g, but if -pipe is in effect, expands to nothing. (We have both
402 %| and %m to accommodate differences between system assemblers; see
403 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
405 like %g, but generates a new temporary file name even if %uSUFFIX
408 substitutes the last file name generated with %uSUFFIX, generating a
409 new one if there is no such last file name. In the absence of any
410 %uSUFFIX, this is just like %gSUFFIX, except they don't share
411 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
412 would involve the generation of two distinct file names, one
413 for each `%g.s' and another for each `%U.s'. Previously, %U was
414 simply substituted with a file name chosen for the previous %u,
415 without regard to any appended suffix.
417 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
418 writable, and if save-temps is off; otherwise, substitute the name
419 of a temporary file, just like %u. This temporary file is not
420 meant for communication between processes, but rather as a junk
423 substitutes .SUFFIX for the suffixes of a matched switch's args when
424 it is subsequently output with %*. SUFFIX is terminated by the next
426 %d marks the argument containing or following the %d as a
427 temporary file name, so that that file will be deleted if CC exits
428 successfully. Unlike %g, this contributes no text to the argument.
429 %w marks the argument containing or following the %w as the
430 "output file" of this compilation. This puts the argument
431 into the sequence of arguments that %o will substitute later.
432 %V indicates that this compilation produces no "output file".
434 like %{...} but mark last argument supplied within
435 as a file to be deleted on failure.
436 %o substitutes the names of all the output files, with spaces
437 automatically placed around them. You should write spaces
438 around the %o as well or the results are undefined.
439 %o is for use in the specs for running the linker.
440 Input files whose names have no recognized suffix are not compiled
441 at all, but they are included among the output files, so they will
443 %O substitutes the suffix for object files. Note that this is
444 handled specially when it immediately follows %g, %u, or %U
445 (with or without a suffix argument) because of the need for
446 those to form complete file names. The handling is such that
447 %O is treated exactly as if it had already been substituted,
448 except that %g, %u, and %U do not currently support additional
449 SUFFIX characters following %O as they would following, for
451 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
452 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
453 and -B options) and -imultilib as necessary.
454 %s current argument is the name of a library or startup file of some sort.
455 Search for that file in a standard list of directories
456 and substitute the full name found.
457 %eSTR Print STR as an error message. STR is terminated by a newline.
458 Use this when inconsistent options are detected.
459 %nSTR Print STR as a notice. STR is terminated by a newline.
460 %x{OPTION} Accumulate an option for %X.
461 %X Output the accumulated linker options specified by compilations.
462 %Y Output the accumulated assembler options specified by compilations.
463 %Z Output the accumulated preprocessor options specified by compilations.
464 %a process ASM_SPEC as a spec.
465 This allows config.h to specify part of the spec for running as.
466 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
467 used here. This can be used to run a post-processor after the
468 assembler has done its job.
469 %D Dump out a -L option for each directory in startfile_prefixes.
470 If multilib_dir is set, extra entries are generated with it affixed.
471 %l process LINK_SPEC as a spec.
472 %L process LIB_SPEC as a spec.
473 %G process LIBGCC_SPEC as a spec.
474 %R Output the concatenation of target_system_root and
475 target_sysroot_suffix.
476 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
477 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
478 %C process CPP_SPEC as a spec.
479 %1 process CC1_SPEC as a spec.
480 %2 process CC1PLUS_SPEC as a spec.
481 %* substitute the variable part of a matched option. (See below.)
482 Note that each comma in the substituted string is replaced by
484 %<S remove all occurrences of -S from the command line.
485 Note - this command is position dependent. % commands in the
486 spec string before this one will see -S, % commands in the
487 spec string after this one will not.
488 %<S* remove all occurrences of all switches beginning with -S from the
491 Call the named function FUNCTION, passing it ARGS. ARGS is
492 first processed as a nested spec string, then split into an
493 argument vector in the usual fashion. The function returns
494 a string which is processed as if it had appeared literally
495 as part of the current spec.
496 %{S} substitutes the -S switch, if that switch was given to CC.
497 If that switch was not specified, this substitutes nothing.
498 Here S is a metasyntactic variable.
499 %{S*} substitutes all the switches specified to CC whose names start
500 with -S. This is used for -o, -I, etc; switches that take
501 arguments. CC considers `-o foo' as being one switch whose
502 name starts with `o'. %{o*} would substitute this text,
503 including the space; thus, two arguments would be generated.
504 %{S*&T*} likewise, but preserve order of S and T options (the order
505 of S and T in the spec is not significant). Can be any number
506 of ampersand-separated variables; for each the wild card is
507 optional. Useful for CPP as %{D*&U*&A*}.
509 %{S:X} substitutes X, if the -S switch was given to CC.
510 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
511 %{S*:X} substitutes X if one or more switches whose names start
512 with -S was given to CC. Normally X is substituted only
513 once, no matter how many such switches appeared. However,
514 if %* appears somewhere in X, then X will be substituted
515 once for each matching switch, with the %* replaced by the
516 part of that switch that matched the '*'.
517 %{.S:X} substitutes X, if processing a file with suffix S.
518 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
519 %{,S:X} substitutes X, if processing a file which will use spec S.
520 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
522 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
523 combined with '!', '.', ',', and '*' as above binding stronger
525 If %* appears in X, all of the alternatives must be starred, and
526 only the first matching alternative is substituted.
527 %{S:X; if S was given to CC, substitutes X;
528 T:Y; else if T was given to CC, substitutes Y;
529 :D} else substitutes D. There can be as many clauses as you need.
530 This may be combined with '.', '!', ',', '|', and '*' as above.
532 %(Spec) processes a specification defined in a specs file as *Spec:
533 %[Spec] as above, but put __ around -D arguments
535 The conditional text X in a %{S:X} or similar construct may contain
536 other nested % constructs or spaces, or even newlines. They are
537 processed as usual, as described above. Trailing white space in X is
538 ignored. White space may also appear anywhere on the left side of the
539 colon in these constructs, except between . or * and the corresponding
542 The -O, -f, -m, and -W switches are handled specifically in these
543 constructs. If another value of -O or the negated form of a -f, -m, or
544 -W switch is found later in the command line, the earlier switch
545 value is ignored, except with {S*} where S is just one letter; this
546 passes all matching options.
548 The character | at the beginning of the predicate text is used to indicate
549 that a command should be piped to the following command, but only if -pipe
552 Note that it is built into CC which switches take arguments and which
553 do not. You might think it would be useful to generalize this to
554 allow each compiler's spec to say which switches take arguments. But
555 this cannot be done in a consistent fashion. CC cannot even decide
556 which input files have been specified without knowing which switches
557 take arguments, and it must know which input files to compile in order
558 to tell which compilers to run.
560 CC also knows implicitly that arguments starting in `-l' are to be
561 treated as compiler output files, and passed to the linker in their
562 proper position among the other output files. */
564 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
566 /* config.h can define ASM_SPEC to provide extra args to the assembler
567 or extra switch-translations. */
572 /* config.h can define ASM_FINAL_SPEC to run a post processor after
573 the assembler has run. */
574 #ifndef ASM_FINAL_SPEC
575 #define ASM_FINAL_SPEC ""
578 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
579 or extra switch-translations. */
584 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
585 or extra switch-translations. */
590 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
591 or extra switch-translations. */
593 #define CC1PLUS_SPEC ""
596 /* config.h can define LINK_SPEC to provide extra args to the linker
597 or extra switch-translations. */
602 /* config.h can define LIB_SPEC to override the default libraries. */
604 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
609 /* XXX: valid only for GNU ld */
610 /* XXX: should exactly match hooks provided by libmudflap.a */
611 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
612 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
613 --wrap=mmap --wrap=munmap --wrap=alloca\
614 } %{fmudflapth: --wrap=pthread_create\
615 }} %{fmudflap|fmudflapth: --wrap=main}"
618 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
621 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
624 #if defined(REAL_LIBGCC_SPEC)
625 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
626 #elif defined(LINK_LIBGCC_SPECIAL_1)
627 /* Have gcc do the search for libgcc.a. */
628 #define LIBGCC_SPEC "libgcc.a%s"
630 #define LIBGCC_SPEC "-lgcc"
634 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
635 #ifndef STARTFILE_SPEC
636 #define STARTFILE_SPEC \
637 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
640 /* config.h can define SWITCHES_NEED_SPACES to control which options
641 require spaces between the option and the argument. */
642 #ifndef SWITCHES_NEED_SPACES
643 #define SWITCHES_NEED_SPACES ""
646 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
648 #define ENDFILE_SPEC ""
652 #define LINKER_NAME "collect2"
655 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
657 #ifndef ASM_DEBUG_SPEC
658 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
659 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
660 # define ASM_DEBUG_SPEC \
661 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
662 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
663 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
665 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
666 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
668 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
669 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
673 #ifndef ASM_DEBUG_SPEC
674 # define ASM_DEBUG_SPEC ""
677 /* Here is the spec for running the linker, after compiling all files. */
679 /* This is overridable by the target in case they need to specify the
680 -lgcc and -lc order specially, yet not require them to override all
681 of LINK_COMMAND_SPEC. */
682 #ifndef LINK_GCC_C_SEQUENCE_SPEC
683 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
686 #ifndef LINK_SSP_SPEC
687 #ifdef TARGET_LIBC_PROVIDES_SSP
688 #define LINK_SSP_SPEC "%{fstack-protector:}"
690 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
694 #ifndef LINK_PIE_SPEC
696 #define LINK_PIE_SPEC "%{pie:-pie} "
698 #define LINK_PIE_SPEC "%{pie:} "
702 /* -u* was put back because both BSD and SysV seem to support it. */
703 /* %{static:} simply prevents an error message if the target machine
704 doesn't handle -static. */
705 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
706 scripts which exist in user specified directories, or in standard
708 #ifndef LINK_COMMAND_SPEC
709 #define LINK_COMMAND_SPEC "\
710 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
711 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
712 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
713 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
714 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
715 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
716 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
717 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
720 #ifndef LINK_LIBGCC_SPEC
721 /* Generate -L options for startfile prefix list. */
722 # define LINK_LIBGCC_SPEC "%D"
725 #ifndef STARTFILE_PREFIX_SPEC
726 # define STARTFILE_PREFIX_SPEC ""
730 # define SYSROOT_SPEC "--sysroot=%R"
733 #ifndef SYSROOT_SUFFIX_SPEC
734 # define SYSROOT_SUFFIX_SPEC ""
737 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
738 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
741 static const char *asm_debug;
742 static const char *cpp_spec = CPP_SPEC;
743 static const char *cc1_spec = CC1_SPEC;
744 static const char *cc1plus_spec = CC1PLUS_SPEC;
745 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
746 static const char *link_ssp_spec = LINK_SSP_SPEC;
747 static const char *asm_spec = ASM_SPEC;
748 static const char *asm_final_spec = ASM_FINAL_SPEC;
749 static const char *link_spec = LINK_SPEC;
750 static const char *lib_spec = LIB_SPEC;
751 static const char *mfwrap_spec = MFWRAP_SPEC;
752 static const char *mflib_spec = MFLIB_SPEC;
753 static const char *link_gomp_spec = "";
754 static const char *libgcc_spec = LIBGCC_SPEC;
755 static const char *endfile_spec = ENDFILE_SPEC;
756 static const char *startfile_spec = STARTFILE_SPEC;
757 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
758 static const char *linker_name_spec = LINKER_NAME;
759 static const char *link_command_spec = LINK_COMMAND_SPEC;
760 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
761 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
762 static const char *sysroot_spec = SYSROOT_SPEC;
763 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
764 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
766 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
767 There should be no need to override these in target dependent files,
768 but we need to copy them to the specs file so that newer versions
769 of the GCC driver can correctly drive older tool chains with the
770 appropriate -B options. */
772 /* When cpplib handles traditional preprocessing, get rid of this, and
773 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
774 that we default the front end language better. */
775 static const char *trad_capable_cpp =
776 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
778 /* We don't wrap .d files in %W{} since a missing .d file, and
779 therefore no dependency entry, confuses make into thinking a .o
780 file that happens to exist is up-to-date. */
781 static const char *cpp_unique_options =
782 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
783 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
784 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
785 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
786 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
787 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
788 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
789 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
790 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
791 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
794 /* This contains cpp options which are common with cc1_options and are passed
795 only when preprocessing only to avoid duplication. We pass the cc1 spec
796 options to the preprocessor so that it the cc1 spec may manipulate
797 options used to set target flags. Those special target flags settings may
798 in turn cause preprocessor symbols to be defined specially. */
799 static const char *cpp_options =
800 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
801 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
802 %{undef} %{save-temps:-fpch-preprocess}";
804 /* This contains cpp options which are not passed when the preprocessor
805 output will be used by another program. */
806 static const char *cpp_debug_options = "%{d*}";
808 /* NB: This is shared amongst all front-ends. */
809 static const char *cc1_options =
810 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
811 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
812 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
813 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
814 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
815 %{Qn:-fno-ident} %{--help:--help}\
816 %{--target-help:--target-help}\
817 %{--help=*:--help=%(VALUE)}\
818 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
819 %{fsyntax-only:-o %j} %{-param*}\
820 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
821 %{coverage:-fprofile-arcs -ftest-coverage}";
823 static const char *asm_options =
824 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
826 static const char *invoke_as =
827 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
828 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
830 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
833 /* Some compilers have limits on line lengths, and the multilib_select
834 and/or multilib_matches strings can be very long, so we build them at
836 static struct obstack multilib_obstack;
837 static const char *multilib_select;
838 static const char *multilib_matches;
839 static const char *multilib_defaults;
840 static const char *multilib_exclusions;
842 /* Check whether a particular argument is a default argument. */
844 #ifndef MULTILIB_DEFAULTS
845 #define MULTILIB_DEFAULTS { "" }
848 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
850 #ifndef DRIVER_SELF_SPECS
851 #define DRIVER_SELF_SPECS ""
854 /* Adding -fopenmp should imply pthreads. This is particularly important
855 for targets that use different start files and suchlike. */
856 #ifndef GOMP_SELF_SPECS
857 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
860 static const char *const driver_self_specs[] = {
861 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
864 #ifndef OPTION_DEFAULT_SPECS
865 #define OPTION_DEFAULT_SPECS { "", "" }
874 static const struct default_spec
875 option_default_specs[] = { OPTION_DEFAULT_SPECS };
879 struct user_specs *next;
880 const char *filename;
883 static struct user_specs *user_specs_head, *user_specs_tail;
885 #ifndef SWITCH_TAKES_ARG
886 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
889 #ifndef WORD_SWITCH_TAKES_ARG
890 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
893 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
894 /* This defines which switches stop a full compilation. */
895 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
896 ((CHAR) == 'c' || (CHAR) == 'S')
898 #ifndef SWITCH_CURTAILS_COMPILATION
899 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
900 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
904 /* Record the mapping from file suffixes for compilation specs. */
908 const char *suffix; /* Use this compiler for input files
909 whose names end in this suffix. */
911 const char *spec; /* To use this compiler, run this spec. */
913 const char *cpp_spec; /* If non-NULL, substitute this spec
914 for `%C', rather than the usual
916 const int combinable; /* If nonzero, compiler can deal with
917 multiple source files at once (IMA). */
918 const int needs_preprocessing; /* If nonzero, source files need to
919 be run through a preprocessor. */
922 /* Pointer to a vector of `struct compiler' that gives the spec for
923 compiling a file, based on its suffix.
924 A file that does not end in any of these suffixes will be passed
925 unchanged to the loader and nothing else will be done to it.
927 An entry containing two 0s is used to terminate the vector.
929 If multiple entries match a file, the last matching one is used. */
931 static struct compiler *compilers;
933 /* Number of entries in `compilers', not counting the null terminator. */
935 static int n_compilers;
937 /* The default list of file name suffixes and their compilation specs. */
939 static const struct compiler default_compilers[] =
941 /* Add lists of suffixes of known languages here. If those languages
942 were not present when we built the driver, we will hit these copies
943 and be given a more meaningful error than "file not used since
944 linking is not done". */
945 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
946 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
947 {".mii", "#Objective-C++", 0, 0, 0},
948 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
949 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
950 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
951 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
952 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
953 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
954 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
955 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
956 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
957 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
958 {".r", "#Ratfor", 0, 0, 0},
959 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
960 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
961 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
962 /* Next come the entries for C. */
963 {".c", "@c", 0, 1, 1},
965 /* cc1 has an integrated ISO C preprocessor. We should invoke the
966 external preprocessor if -save-temps is given. */
967 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
969 %{traditional|ftraditional:\
970 %eGNU C no longer supports -traditional without -E}\
972 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
973 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
974 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
976 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
977 cc1 %(cpp_unique_options) %(cc1_options)}}}\
978 %{!fsyntax-only:%(invoke_as)}} \
980 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
981 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
982 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
983 cc1 %(cpp_unique_options) %(cc1_options)}}\
984 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
986 "%{!E:%e-E or -x required when input is from standard input}\
987 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
988 {".h", "@c-header", 0, 0, 0},
990 /* cc1 has an integrated ISO C preprocessor. We should invoke the
991 external preprocessor if -save-temps is given. */
992 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
994 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
995 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
996 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
998 -o %g.s %{!o*:--output-pch=%i.gch}\
999 %W{o*:--output-pch=%*}%V}\
1000 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
1001 cc1 %(cpp_unique_options) %(cc1_options)\
1002 -o %g.s %{!o*:--output-pch=%i.gch}\
1003 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1004 {".i", "@cpp-output", 0, 1, 0},
1006 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1007 {".s", "@assembler", 0, 1, 0},
1009 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1010 {".S", "@assembler-with-cpp", 0, 1, 0},
1011 {"@assembler-with-cpp",
1012 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1013 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1014 %{E|M|MM:%(cpp_debug_options)}\
1015 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1016 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1018 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1019 %{E|M|MM:%(cpp_debug_options)}\
1020 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1021 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1026 /* Mark end of table. */
1030 /* Number of elements in default_compilers, not counting the terminator. */
1032 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1034 /* A vector of options to give to the linker.
1035 These options are accumulated by %x,
1036 and substituted into the linker command with %X. */
1037 static int n_linker_options;
1038 static char **linker_options;
1040 /* A vector of options to give to the assembler.
1041 These options are accumulated by -Wa,
1042 and substituted into the assembler command with %Y. */
1043 static int n_assembler_options;
1044 static char **assembler_options;
1046 /* A vector of options to give to the preprocessor.
1047 These options are accumulated by -Wp,
1048 and substituted into the preprocessor command with %Z. */
1049 static int n_preprocessor_options;
1050 static char **preprocessor_options;
1052 /* Define how to map long options into short ones. */
1054 /* This structure describes one mapping. */
1057 /* The long option's name. */
1058 const char *const name;
1059 /* The equivalent short option. */
1060 const char *const equivalent;
1061 /* Argument info. A string of flag chars; NULL equals no options.
1062 a => argument required.
1063 o => argument optional.
1064 j => join argument to equivalent, making one word.
1065 * => require other text after NAME as an argument. */
1066 const char *const arg_info;
1069 /* This is the table of mappings. Mappings are tried sequentially
1070 for each option encountered; the first one that matches, wins. */
1072 static const struct option_map option_map[] =
1074 {"--all-warnings", "-Wall", 0},
1075 {"--ansi", "-ansi", 0},
1076 {"--assemble", "-S", 0},
1077 {"--assert", "-A", "a"},
1078 {"--classpath", "-fclasspath=", "aj"},
1079 {"--bootclasspath", "-fbootclasspath=", "aj"},
1080 {"--CLASSPATH", "-fclasspath=", "aj"},
1081 {"--combine", "-combine", 0},
1082 {"--comments", "-C", 0},
1083 {"--comments-in-macros", "-CC", 0},
1084 {"--compile", "-c", 0},
1085 {"--debug", "-g", "oj"},
1086 {"--define-macro", "-D", "aj"},
1087 {"--dependencies", "-M", 0},
1088 {"--dump", "-d", "a"},
1089 {"--dumpbase", "-dumpbase", "a"},
1090 {"--encoding", "-fencoding=", "aj"},
1091 {"--entry", "-e", 0},
1092 {"--extra-warnings", "-W", 0},
1093 {"--extdirs", "-fextdirs=", "aj"},
1094 {"--for-assembler", "-Wa", "a"},
1095 {"--for-linker", "-Xlinker", "a"},
1096 {"--force-link", "-u", "a"},
1097 {"--coverage", "-coverage", 0},
1098 {"--imacros", "-imacros", "a"},
1099 {"--include", "-include", "a"},
1100 {"--include-barrier", "-I-", 0},
1101 {"--include-directory", "-I", "aj"},
1102 {"--include-directory-after", "-idirafter", "a"},
1103 {"--include-prefix", "-iprefix", "a"},
1104 {"--include-with-prefix", "-iwithprefix", "a"},
1105 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1106 {"--include-with-prefix-after", "-iwithprefix", "a"},
1107 {"--language", "-x", "a"},
1108 {"--library-directory", "-L", "a"},
1109 {"--machine", "-m", "aj"},
1110 {"--machine-", "-m", "*j"},
1111 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1112 {"--no-line-commands", "-P", 0},
1113 {"--no-precompiled-includes", "-noprecomp", 0},
1114 {"--no-standard-includes", "-nostdinc", 0},
1115 {"--no-standard-libraries", "-nostdlib", 0},
1116 {"--no-warnings", "-w", 0},
1117 {"--optimize", "-O", "oj"},
1118 {"--output", "-o", "a"},
1119 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1120 {"--param", "--param", "a"},
1121 {"--pass-exit-codes", "-pass-exit-codes", 0},
1122 {"--pedantic", "-pedantic", 0},
1123 {"--pedantic-errors", "-pedantic-errors", 0},
1124 {"--pie", "-pie", 0},
1125 {"--pipe", "-pipe", 0},
1126 {"--prefix", "-B", "a"},
1127 {"--preprocess", "-E", 0},
1128 {"--print-search-dirs", "-print-search-dirs", 0},
1129 {"--print-file-name", "-print-file-name=", "aj"},
1130 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1131 {"--print-missing-file-dependencies", "-MG", 0},
1132 {"--print-multi-lib", "-print-multi-lib", 0},
1133 {"--print-multi-directory", "-print-multi-directory", 0},
1134 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1135 {"--print-prog-name", "-print-prog-name=", "aj"},
1136 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1137 {"--profile", "-p", 0},
1138 {"--profile-blocks", "-a", 0},
1139 {"--quiet", "-q", 0},
1140 {"--resource", "-fcompile-resource=", "aj"},
1141 {"--save-temps", "-save-temps", 0},
1142 {"--shared", "-shared", 0},
1143 {"--silent", "-q", 0},
1144 {"--specs", "-specs=", "aj"},
1145 {"--static", "-static", 0},
1146 {"--std", "-std=", "aj"},
1147 {"--symbolic", "-symbolic", 0},
1148 {"--sysroot", "--sysroot=", "aj"},
1149 {"--time", "-time", 0},
1150 {"--trace-includes", "-H", 0},
1151 {"--traditional", "-traditional", 0},
1152 {"--traditional-cpp", "-traditional-cpp", 0},
1153 {"--trigraphs", "-trigraphs", 0},
1154 {"--undefine-macro", "-U", "aj"},
1155 {"--user-dependencies", "-MM", 0},
1156 {"--verbose", "-v", 0},
1157 {"--warn-", "-W", "*j"},
1158 {"--write-dependencies", "-MD", 0},
1159 {"--write-user-dependencies", "-MMD", 0},
1164 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1165 static const struct {
1166 const char *const option_found;
1167 const char *const replacements;
1168 } target_option_translations[] =
1170 TARGET_OPTION_TRANSLATE_TABLE,
1175 /* Translate the options described by *ARGCP and *ARGVP.
1176 Make a new vector and store it back in *ARGVP,
1177 and store its length in *ARGVC. */
1180 translate_options (int *argcp, const char *const **argvp)
1184 const char *const *argv = *argvp;
1185 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1186 const char **newv = xmalloc (newvsize);
1190 newv[newindex++] = argv[i++];
1194 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1198 target_option_translations[tott_idx].option_found;
1201 if (strcmp (target_option_translations[tott_idx].option_found,
1208 for (sp = target_option_translations[tott_idx].replacements;
1215 newvsize += spaces * sizeof (const char *);
1216 newv = xrealloc (newv, newvsize);
1218 sp = target_option_translations[tott_idx].replacements;
1227 newv[newindex++] = np;
1228 while (*np != ' ' && *np)
1239 if (target_option_translations[tott_idx].option_found)
1243 /* Translate -- options. */
1244 if (argv[i][0] == '-' && argv[i][1] == '-')
1247 /* Find a mapping that applies to this option. */
1248 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1250 size_t optlen = strlen (option_map[j].name);
1251 size_t arglen = strlen (argv[i]);
1252 size_t complen = arglen > optlen ? optlen : arglen;
1253 const char *arginfo = option_map[j].arg_info;
1258 if (!strncmp (argv[i], option_map[j].name, complen))
1260 const char *arg = 0;
1262 if (arglen < optlen)
1265 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1266 if (strlen (option_map[k].name) >= arglen
1267 && !strncmp (argv[i], option_map[k].name, arglen))
1269 error ("ambiguous abbreviation %s", argv[i]);
1273 if (k != ARRAY_SIZE (option_map))
1277 if (arglen > optlen)
1279 /* If the option has an argument, accept that. */
1280 if (argv[i][optlen] == '=')
1281 arg = argv[i] + optlen + 1;
1283 /* If this mapping requires extra text at end of name,
1284 accept that as "argument". */
1285 else if (strchr (arginfo, '*') != 0)
1286 arg = argv[i] + optlen;
1288 /* Otherwise, extra text at end means mismatch.
1289 Try other mappings. */
1294 else if (strchr (arginfo, '*') != 0)
1296 error ("incomplete '%s' option", option_map[j].name);
1300 /* Handle arguments. */
1301 if (strchr (arginfo, 'a') != 0)
1307 error ("missing argument to '%s' option",
1308 option_map[j].name);
1315 else if (strchr (arginfo, '*') != 0)
1317 else if (strchr (arginfo, 'o') == 0)
1320 error ("extraneous argument to '%s' option",
1321 option_map[j].name);
1325 /* Store the translation as one argv elt or as two. */
1326 if (arg != 0 && strchr (arginfo, 'j') != 0)
1327 newv[newindex++] = concat (option_map[j].equivalent, arg,
1331 newv[newindex++] = option_map[j].equivalent;
1332 newv[newindex++] = arg;
1335 newv[newindex++] = option_map[j].equivalent;
1343 /* Handle old-fashioned options--just copy them through,
1344 with their arguments. */
1345 else if (argv[i][0] == '-')
1347 const char *p = argv[i] + 1;
1351 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1352 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1353 else if (WORD_SWITCH_TAKES_ARG (p))
1354 nskip += WORD_SWITCH_TAKES_ARG (p);
1355 else if ((c == 'B' || c == 'b' || c == 'x')
1358 else if (! strcmp (p, "Xlinker"))
1360 else if (! strcmp (p, "Xpreprocessor"))
1362 else if (! strcmp (p, "Xassembler"))
1365 /* Watch out for an option at the end of the command line that
1366 is missing arguments, and avoid skipping past the end of the
1368 if (nskip + i > argc)
1373 newv[newindex++] = argv[i++];
1378 /* Ordinary operands, or +e options. */
1379 newv[newindex++] = argv[i++];
1389 skip_whitespace (char *p)
1393 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1394 be considered whitespace. */
1395 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1397 else if (*p == '\n' || *p == ' ' || *p == '\t')
1411 /* Structures to keep track of prefixes to try when looking for files. */
1415 const char *prefix; /* String to prepend to the path. */
1416 struct prefix_list *next; /* Next in linked list. */
1417 int require_machine_suffix; /* Don't use without machine_suffix. */
1418 /* 2 means try both machine_suffix and just_machine_suffix. */
1419 int priority; /* Sort key - priority within list. */
1420 int os_multilib; /* 1 if OS multilib scheme should be used,
1421 0 for GCC multilib scheme. */
1426 struct prefix_list *plist; /* List of prefixes to try */
1427 int max_len; /* Max length of a prefix in PLIST */
1428 const char *name; /* Name of this list (used in config stuff) */
1431 /* List of prefixes to try when looking for executables. */
1433 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1435 /* List of prefixes to try when looking for startup (crt0) files. */
1437 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1439 /* List of prefixes to try when looking for include files. */
1441 static struct path_prefix include_prefixes = { 0, 0, "include" };
1443 /* Suffix to attach to directories searched for commands.
1444 This looks like `MACHINE/VERSION/'. */
1446 static const char *machine_suffix = 0;
1448 /* Suffix to attach to directories searched for commands.
1449 This is just `MACHINE/'. */
1451 static const char *just_machine_suffix = 0;
1453 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1455 static const char *gcc_exec_prefix;
1457 /* Adjusted value of standard_libexec_prefix. */
1459 static const char *gcc_libexec_prefix;
1461 /* Default prefixes to attach to command names. */
1463 #ifndef STANDARD_STARTFILE_PREFIX_1
1464 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1466 #ifndef STANDARD_STARTFILE_PREFIX_2
1467 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1470 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1471 #undef MD_EXEC_PREFIX
1472 #undef MD_STARTFILE_PREFIX
1473 #undef MD_STARTFILE_PREFIX_1
1476 /* If no prefixes defined, use the null string, which will disable them. */
1477 #ifndef MD_EXEC_PREFIX
1478 #define MD_EXEC_PREFIX ""
1480 #ifndef MD_STARTFILE_PREFIX
1481 #define MD_STARTFILE_PREFIX ""
1483 #ifndef MD_STARTFILE_PREFIX_1
1484 #define MD_STARTFILE_PREFIX_1 ""
1487 /* These directories are locations set at configure-time based on the
1488 --prefix option provided to configure. Their initializers are
1489 defined in Makefile.in. These paths are not *directly* used when
1490 gcc_exec_prefix is set because, in that case, we know where the
1491 compiler has been installed, and use paths relative to that
1492 location instead. */
1493 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1494 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1495 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1496 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1498 /* For native compilers, these are well-known paths containing
1499 components that may be provided by the system. For cross
1500 compilers, these paths are not used. */
1501 static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
1502 static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
1503 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1504 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1505 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1506 static const char *const standard_startfile_prefix_1
1507 = STANDARD_STARTFILE_PREFIX_1;
1508 static const char *const standard_startfile_prefix_2
1509 = STANDARD_STARTFILE_PREFIX_2;
1511 /* A relative path to be used in finding the location of tools
1512 relative to the driver. */
1513 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1515 /* Subdirectory to use for locating libraries. Set by
1516 set_multilib_dir based on the compilation options. */
1518 static const char *multilib_dir;
1520 /* Subdirectory to use for locating libraries in OS conventions. Set by
1521 set_multilib_dir based on the compilation options. */
1523 static const char *multilib_os_dir;
1525 /* Structure to keep track of the specs that have been defined so far.
1526 These are accessed using %(specname) or %[specname] in a compiler
1531 /* The following 2 fields must be first */
1532 /* to allow EXTRA_SPECS to be initialized */
1533 const char *name; /* name of the spec. */
1534 const char *ptr; /* available ptr if no static pointer */
1536 /* The following fields are not initialized */
1537 /* by EXTRA_SPECS */
1538 const char **ptr_spec; /* pointer to the spec itself. */
1539 struct spec_list *next; /* Next spec in linked list. */
1540 int name_len; /* length of the name */
1541 int alloc_p; /* whether string was allocated */
1544 #define INIT_STATIC_SPEC(NAME,PTR) \
1545 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1547 /* List of statically defined specs. */
1548 static struct spec_list static_specs[] =
1550 INIT_STATIC_SPEC ("asm", &asm_spec),
1551 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1552 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1553 INIT_STATIC_SPEC ("asm_options", &asm_options),
1554 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1555 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1556 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1557 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1558 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1559 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1560 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1561 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1562 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1563 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1564 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1565 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1566 INIT_STATIC_SPEC ("link", &link_spec),
1567 INIT_STATIC_SPEC ("lib", &lib_spec),
1568 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1569 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1570 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1571 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1572 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1573 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1574 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1575 INIT_STATIC_SPEC ("version", &compiler_version),
1576 INIT_STATIC_SPEC ("multilib", &multilib_select),
1577 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1578 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1579 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1580 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1581 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1582 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1583 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1584 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1585 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1586 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1587 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1588 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1589 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1590 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1593 #ifdef EXTRA_SPECS /* additional specs needed */
1594 /* Structure to keep track of just the first two args of a spec_list.
1595 That is all that the EXTRA_SPECS macro gives us. */
1598 const char *const name;
1599 const char *const ptr;
1602 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1603 static struct spec_list *extra_specs = (struct spec_list *) 0;
1606 /* List of dynamically allocates specs that have been defined so far. */
1608 static struct spec_list *specs = (struct spec_list *) 0;
1610 /* List of static spec functions. */
1612 static const struct spec_function static_spec_functions[] =
1614 { "getenv", getenv_spec_function },
1615 { "if-exists", if_exists_spec_function },
1616 { "if-exists-else", if_exists_else_spec_function },
1617 { "replace-outfile", replace_outfile_spec_function },
1618 { "version-compare", version_compare_spec_function },
1619 { "include", include_spec_function },
1620 #ifdef EXTRA_SPEC_FUNCTIONS
1621 EXTRA_SPEC_FUNCTIONS
1626 static int processing_spec_function;
1628 /* Add appropriate libgcc specs to OBSTACK, taking into account
1629 various permutations of -shared-libgcc, -shared, and such. */
1631 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1633 #ifndef USE_LD_AS_NEEDED
1634 #define USE_LD_AS_NEEDED 0
1638 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1639 const char *static_name, const char *eh_name)
1643 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1644 "%{!static:%{!static-libgcc:"
1645 #if USE_LD_AS_NEEDED
1646 "%{!shared-libgcc:",
1647 static_name, " --as-needed ", shared_name, " --no-as-needed"
1650 shared_name, "%{!shared: ", static_name, "}"
1654 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1655 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1659 "%{shared-libgcc:", shared_name, "}"
1660 "%{!shared-libgcc:", static_name, "}"
1663 "%{shared:", shared_name, "}"
1668 obstack_grow (obstack, buf, strlen (buf));
1671 #endif /* ENABLE_SHARED_LIBGCC */
1673 /* Initialize the specs lookup routines. */
1678 struct spec_list *next = (struct spec_list *) 0;
1679 struct spec_list *sl = (struct spec_list *) 0;
1683 return; /* Already initialized. */
1686 notice ("Using built-in specs.\n");
1689 extra_specs = xcalloc (sizeof (struct spec_list),
1690 ARRAY_SIZE (extra_specs_1));
1692 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1694 sl = &extra_specs[i];
1695 sl->name = extra_specs_1[i].name;
1696 sl->ptr = extra_specs_1[i].ptr;
1698 sl->name_len = strlen (sl->name);
1699 sl->ptr_spec = &sl->ptr;
1704 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1705 on ?: in file-scope variable initializations. */
1706 asm_debug = ASM_DEBUG_SPEC;
1708 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1710 sl = &static_specs[i];
1715 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1716 /* ??? If neither -shared-libgcc nor --static-libgcc was
1717 seen, then we should be making an educated guess. Some proposed
1718 heuristics for ELF include:
1720 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1721 program will be doing dynamic loading, which will likely
1722 need the shared libgcc.
1724 (2) If "-ldl", then it's also a fair bet that we're doing
1727 (3) For each ET_DYN we're linking against (either through -lfoo
1728 or /some/path/foo.so), check to see whether it or one of
1729 its dependencies depends on a shared libgcc.
1733 If the runtime is fixed to look for program headers instead
1734 of calling __register_frame_info at all, for each object,
1735 use the shared libgcc if any EH symbol referenced.
1737 If crtstuff is fixed to not invoke __register_frame_info
1738 automatically, for each object, use the shared libgcc if
1739 any non-empty unwind section found.
1741 Doing any of this probably requires invoking an external program to
1742 do the actual object file scanning. */
1744 const char *p = libgcc_spec;
1747 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1748 when given the proper command line arguments. */
1751 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1753 init_gcc_specs (&obstack,
1755 #ifdef USE_LIBUNWIND_EXCEPTIONS
1761 #ifdef USE_LIBUNWIND_EXCEPTIONS
1762 # ifdef HAVE_LD_STATIC_DYNAMIC
1763 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1773 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1775 /* Ug. We don't know shared library extensions. Hope that
1776 systems that use this form don't do shared libraries. */
1777 init_gcc_specs (&obstack,
1781 #ifdef USE_LIBUNWIND_EXCEPTIONS
1790 obstack_1grow (&obstack, *p);
1791 in_sep = (*p == ' ');
1796 obstack_1grow (&obstack, '\0');
1797 libgcc_spec = XOBFINISH (&obstack, const char *);
1800 #ifdef USE_AS_TRADITIONAL_FORMAT
1801 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1803 static const char tf[] = "--traditional-format ";
1804 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1805 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1806 asm_spec = XOBFINISH (&obstack, const char *);
1810 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1811 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1812 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1813 link_spec = XOBFINISH (&obstack, const char *);
1819 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1820 removed; If the spec starts with a + then SPEC is added to the end of the
1824 set_spec (const char *name, const char *spec)
1826 struct spec_list *sl;
1827 const char *old_spec;
1828 int name_len = strlen (name);
1831 /* If this is the first call, initialize the statically allocated specs. */
1834 struct spec_list *next = (struct spec_list *) 0;
1835 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1837 sl = &static_specs[i];
1844 /* See if the spec already exists. */
1845 for (sl = specs; sl; sl = sl->next)
1846 if (name_len == sl->name_len && !strcmp (sl->name, name))
1851 /* Not found - make it. */
1852 sl = XNEW (struct spec_list);
1853 sl->name = xstrdup (name);
1854 sl->name_len = name_len;
1855 sl->ptr_spec = &sl->ptr;
1857 *(sl->ptr_spec) = "";
1862 old_spec = *(sl->ptr_spec);
1863 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1864 ? concat (old_spec, spec + 1, NULL)
1869 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1872 /* Free the old spec. */
1873 if (old_spec && sl->alloc_p)
1874 free ((void *) old_spec);
1879 /* Accumulate a command (program name and args), and run it. */
1881 /* Vector of pointers to arguments in the current line of specifications. */
1883 static const char **argbuf;
1885 /* Number of elements allocated in argbuf. */
1887 static int argbuf_length;
1889 /* Number of elements in argbuf currently in use (containing args). */
1891 static int argbuf_index;
1893 /* Position in the argbuf array containing the name of the output file
1894 (the value associated with the "-o" flag). */
1896 static int have_o_argbuf_index = 0;
1898 /* Were the options -c or -S passed. */
1899 static int have_c = 0;
1901 /* Was the option -o passed. */
1902 static int have_o = 0;
1904 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1905 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1908 static struct temp_name {
1909 const char *suffix; /* suffix associated with the code. */
1910 int length; /* strlen (suffix). */
1911 int unique; /* Indicates whether %g or %u/%U was used. */
1912 const char *filename; /* associated filename. */
1913 int filename_length; /* strlen (filename). */
1914 struct temp_name *next;
1917 /* Number of commands executed so far. */
1919 static int execution_count;
1921 /* Number of commands that exited with a signal. */
1923 static int signal_count;
1925 /* Name with which this program was invoked. */
1927 static const char *programname;
1929 /* Allocate the argument vector. */
1935 argbuf = XNEWVEC (const char *, argbuf_length);
1938 /* Clear out the vector of arguments (after a command is executed). */
1946 /* Add one argument to the vector at the end.
1947 This is done when a space is seen or at the end of the line.
1948 If DELETE_ALWAYS is nonzero, the arg is a filename
1949 and the file should be deleted eventually.
1950 If DELETE_FAILURE is nonzero, the arg is a filename
1951 and the file should be deleted if this compilation fails. */
1954 store_arg (const char *arg, int delete_always, int delete_failure)
1956 if (argbuf_index + 1 == argbuf_length)
1957 argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
1959 argbuf[argbuf_index++] = arg;
1960 argbuf[argbuf_index] = 0;
1962 if (strcmp (arg, "-o") == 0)
1963 have_o_argbuf_index = argbuf_index;
1964 if (delete_always || delete_failure)
1965 record_temp_file (arg, delete_always, delete_failure);
1968 /* Load specs from a file name named FILENAME, replacing occurrences of
1969 various different types of line-endings, \r\n, \n\r and just \r, with
1973 load_specs (const char *filename)
1977 struct stat statbuf;
1984 notice ("Reading specs from %s\n", filename);
1986 /* Open and stat the file. */
1987 desc = open (filename, O_RDONLY, 0);
1989 pfatal_with_name (filename);
1990 if (stat (filename, &statbuf) < 0)
1991 pfatal_with_name (filename);
1993 /* Read contents of file into BUFFER. */
1994 buffer = XNEWVEC (char, statbuf.st_size + 1);
1995 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1997 pfatal_with_name (filename);
1998 buffer[readlen] = 0;
2001 specs = XNEWVEC (char, readlen + 1);
2003 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2009 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2011 else if (*(buffer_p + 1) == '\n') /* \r\n */
2025 /* Read compilation specs from a file named FILENAME,
2026 replacing the default ones.
2028 A suffix which starts with `*' is a definition for
2029 one of the machine-specific sub-specs. The "suffix" should be
2030 *asm, *cc1, *cpp, *link, *startfile, etc.
2031 The corresponding spec is stored in asm_spec, etc.,
2032 rather than in the `compilers' vector.
2034 Anything invalid in the file is a fatal error. */
2037 read_specs (const char *filename, int main_p)
2042 buffer = load_specs (filename);
2044 /* Scan BUFFER for specs, putting them in the vector. */
2050 char *in, *out, *p1, *p2, *p3;
2052 /* Advance P in BUFFER to the next nonblank nocomment line. */
2053 p = skip_whitespace (p);
2057 /* Is this a special command that starts with '%'? */
2058 /* Don't allow this for the main specs file, since it would
2059 encourage people to overwrite it. */
2060 if (*p == '%' && !main_p)
2063 while (*p && *p != '\n')
2069 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2070 && (p1[sizeof "%include" - 1] == ' '
2071 || p1[sizeof "%include" - 1] == '\t'))
2075 p1 += sizeof ("%include");
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);
2085 read_specs (new_filename ? new_filename : p1, FALSE);
2088 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2089 && (p1[sizeof "%include_noerr" - 1] == ' '
2090 || p1[sizeof "%include_noerr" - 1] == '\t'))
2094 p1 += sizeof "%include_noerr";
2095 while (*p1 == ' ' || *p1 == '\t')
2098 if (*p1++ != '<' || p[-2] != '>')
2099 fatal ("specs %%include syntax malformed after %ld characters",
2100 (long) (p1 - buffer + 1));
2103 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2105 read_specs (new_filename, FALSE);
2106 else if (verbose_flag)
2107 notice ("could not find specs file %s\n", p1);
2110 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2111 && (p1[sizeof "%rename" - 1] == ' '
2112 || p1[sizeof "%rename" - 1] == '\t'))
2115 struct spec_list *sl;
2116 struct spec_list *newsl;
2118 /* Get original name. */
2119 p1 += sizeof "%rename";
2120 while (*p1 == ' ' || *p1 == '\t')
2123 if (! ISALPHA ((unsigned char) *p1))
2124 fatal ("specs %%rename syntax malformed after %ld characters",
2125 (long) (p1 - buffer));
2128 while (*p2 && !ISSPACE ((unsigned char) *p2))
2131 if (*p2 != ' ' && *p2 != '\t')
2132 fatal ("specs %%rename syntax malformed after %ld characters",
2133 (long) (p2 - buffer));
2137 while (*p2 == ' ' || *p2 == '\t')
2140 if (! ISALPHA ((unsigned char) *p2))
2141 fatal ("specs %%rename syntax malformed after %ld characters",
2142 (long) (p2 - buffer));
2144 /* Get new spec name. */
2146 while (*p3 && !ISSPACE ((unsigned char) *p3))
2150 fatal ("specs %%rename syntax malformed after %ld characters",
2151 (long) (p3 - buffer));
2154 for (sl = specs; sl; sl = sl->next)
2155 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2159 fatal ("specs %s spec was not found to be renamed", p1);
2161 if (strcmp (p1, p2) == 0)
2164 for (newsl = specs; newsl; newsl = newsl->next)
2165 if (strcmp (newsl->name, p2) == 0)
2166 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2171 notice ("rename spec %s to %s\n", p1, p2);
2173 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2177 set_spec (p2, *(sl->ptr_spec));
2179 free ((void *) *(sl->ptr_spec));
2181 *(sl->ptr_spec) = "";
2186 fatal ("specs unknown %% command after %ld characters",
2187 (long) (p1 - buffer));
2190 /* Find the colon that should end the suffix. */
2192 while (*p1 && *p1 != ':' && *p1 != '\n')
2195 /* The colon shouldn't be missing. */
2197 fatal ("specs file malformed after %ld characters",
2198 (long) (p1 - buffer));
2200 /* Skip back over trailing whitespace. */
2202 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2205 /* Copy the suffix to a string. */
2206 suffix = save_string (p, p2 - p);
2207 /* Find the next line. */
2208 p = skip_whitespace (p1 + 1);
2210 fatal ("specs file malformed after %ld characters",
2211 (long) (p - buffer));
2214 /* Find next blank line or end of string. */
2215 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2218 /* Specs end at the blank line and do not include the newline. */
2219 spec = save_string (p, p1 - p);
2222 /* Delete backslash-newline sequences from the spec. */
2227 if (in[0] == '\\' && in[1] == '\n')
2229 else if (in[0] == '#')
2230 while (*in && *in != '\n')
2238 if (suffix[0] == '*')
2240 if (! strcmp (suffix, "*link_command"))
2241 link_command_spec = spec;
2243 set_spec (suffix + 1, spec);
2247 /* Add this pair to the vector. */
2249 = xrealloc (compilers,
2250 (n_compilers + 2) * sizeof (struct compiler));
2252 compilers[n_compilers].suffix = suffix;
2253 compilers[n_compilers].spec = spec;
2255 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2259 link_command_spec = spec;
2262 if (link_command_spec == 0)
2263 fatal ("spec file has no spec for linking");
2266 /* Record the names of temporary files we tell compilers to write,
2267 and delete them at the end of the run. */
2269 /* This is the common prefix we use to make temp file names.
2270 It is chosen once for each run of this program.
2271 It is substituted into a spec by %g or %j.
2272 Thus, all temp file names contain this prefix.
2273 In practice, all temp file names start with this prefix.
2275 This prefix comes from the envvar TMPDIR if it is defined;
2276 otherwise, from the P_tmpdir macro if that is defined;
2277 otherwise, in /usr/tmp or /tmp;
2278 or finally the current directory if all else fails. */
2280 static const char *temp_filename;
2282 /* Length of the prefix. */
2284 static int temp_filename_length;
2286 /* Define the list of temporary files to delete. */
2291 struct temp_file *next;
2294 /* Queue of files to delete on success or failure of compilation. */
2295 static struct temp_file *always_delete_queue;
2296 /* Queue of files to delete on failure of compilation. */
2297 static struct temp_file *failure_delete_queue;
2299 /* Record FILENAME as a file to be deleted automatically.
2300 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2301 otherwise delete it in any case.
2302 FAIL_DELETE nonzero means delete it if a compilation step fails;
2303 otherwise delete it in any case. */
2306 record_temp_file (const char *filename, int always_delete, int fail_delete)
2308 char *const name = xstrdup (filename);
2312 struct temp_file *temp;
2313 for (temp = always_delete_queue; temp; temp = temp->next)
2314 if (! strcmp (name, temp->name))
2317 temp = XNEW (struct temp_file);
2318 temp->next = always_delete_queue;
2320 always_delete_queue = temp;
2327 struct temp_file *temp;
2328 for (temp = failure_delete_queue; temp; temp = temp->next)
2329 if (! strcmp (name, temp->name))
2332 temp = XNEW (struct temp_file);
2333 temp->next = failure_delete_queue;
2335 failure_delete_queue = temp;
2341 /* Delete all the temporary files whose names we previously recorded. */
2343 #ifndef DELETE_IF_ORDINARY
2344 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2347 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2348 if (unlink (NAME) < 0) \
2350 perror_with_name (NAME); \
2355 delete_if_ordinary (const char *name)
2361 printf ("Delete %s? (y or n) ", name);
2365 while ((c = getchar ()) != '\n' && c != EOF)
2368 if (i == 'y' || i == 'Y')
2370 DELETE_IF_ORDINARY (name, st, verbose_flag);
2374 delete_temp_files (void)
2376 struct temp_file *temp;
2378 for (temp = always_delete_queue; temp; temp = temp->next)
2379 delete_if_ordinary (temp->name);
2380 always_delete_queue = 0;
2383 /* Delete all the files to be deleted on error. */
2386 delete_failure_queue (void)
2388 struct temp_file *temp;
2390 for (temp = failure_delete_queue; temp; temp = temp->next)
2391 delete_if_ordinary (temp->name);
2395 clear_failure_queue (void)
2397 failure_delete_queue = 0;
2400 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2402 If DO_MULTI is true iterate over the paths twice, first with multilib
2403 suffix then without, otherwise iterate over the paths once without
2404 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2405 to avoid visiting the same path twice, but we could do better. For
2406 instance, /usr/lib/../lib is considered different from /usr/lib.
2407 At least EXTRA_SPACE chars past the end of the path passed to
2408 CALLBACK are available for use by the callback.
2409 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2411 Returns the value returned by CALLBACK. */
2414 for_each_path (const struct path_prefix *paths,
2417 void *(*callback) (char *, void *),
2418 void *callback_info)
2420 struct prefix_list *pl;
2421 const char *multi_dir = NULL;
2422 const char *multi_os_dir = NULL;
2423 const char *multi_suffix;
2424 const char *just_multi_suffix;
2427 bool skip_multi_dir = false;
2428 bool skip_multi_os_dir = false;
2430 multi_suffix = machine_suffix;
2431 just_multi_suffix = just_machine_suffix;
2432 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2434 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2435 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2436 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2438 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2439 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2443 size_t multi_dir_len = 0;
2444 size_t multi_os_dir_len = 0;
2446 size_t just_suffix_len;
2450 multi_dir_len = strlen (multi_dir);
2452 multi_os_dir_len = strlen (multi_os_dir);
2453 suffix_len = strlen (multi_suffix);
2454 just_suffix_len = strlen (just_multi_suffix);
2458 len = paths->max_len + extra_space + 1;
2459 if (suffix_len > multi_os_dir_len)
2462 len += multi_os_dir_len;
2463 path = XNEWVEC (char, len);
2466 for (pl = paths->plist; pl != 0; pl = pl->next)
2468 len = strlen (pl->prefix);
2469 memcpy (path, pl->prefix, len);
2471 /* Look first in MACHINE/VERSION subdirectory. */
2472 if (!skip_multi_dir)
2474 memcpy (path + len, multi_suffix, suffix_len + 1);
2475 ret = callback (path, callback_info);
2480 /* Some paths are tried with just the machine (ie. target)
2481 subdir. This is used for finding as, ld, etc. */
2483 && pl->require_machine_suffix == 2)
2485 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2486 ret = callback (path, callback_info);
2491 /* Now try the base path. */
2492 if (!pl->require_machine_suffix
2493 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2495 const char *this_multi;
2496 size_t this_multi_len;
2498 if (pl->os_multilib)
2500 this_multi = multi_os_dir;
2501 this_multi_len = multi_os_dir_len;
2505 this_multi = multi_dir;
2506 this_multi_len = multi_dir_len;
2510 memcpy (path + len, this_multi, this_multi_len + 1);
2514 ret = callback (path, callback_info);
2522 if (multi_dir == NULL && multi_os_dir == NULL)
2525 /* Run through the paths again, this time without multilibs.
2526 Don't repeat any we have already seen. */
2529 free ((char *) multi_dir);
2531 free ((char *) multi_suffix);
2532 multi_suffix = machine_suffix;
2533 free ((char *) just_multi_suffix);
2534 just_multi_suffix = just_machine_suffix;
2537 skip_multi_dir = true;
2540 free ((char *) multi_os_dir);
2541 multi_os_dir = NULL;
2544 skip_multi_os_dir = true;
2549 free ((char *) multi_dir);
2550 free ((char *) multi_suffix);
2551 free ((char *) just_multi_suffix);
2554 free ((char *) multi_os_dir);
2560 /* Callback for build_search_list. Adds path to obstack being built. */
2562 struct add_to_obstack_info {
2569 add_to_obstack (char *path, void *data)
2571 struct add_to_obstack_info *info = data;
2573 if (info->check_dir && !is_directory (path, false))
2576 if (!info->first_time)
2577 obstack_1grow (info->ob, PATH_SEPARATOR);
2579 obstack_grow (info->ob, path, strlen (path));
2581 info->first_time = false;
2585 /* Build a list of search directories from PATHS.
2586 PREFIX is a string to prepend to the list.
2587 If CHECK_DIR_P is true we ensure the directory exists.
2588 If DO_MULTI is true, multilib paths are output first, then
2590 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2591 It is also used by the --print-search-dirs flag. */
2594 build_search_list (const struct path_prefix *paths, const char *prefix,
2595 bool check_dir, bool do_multi)
2597 struct add_to_obstack_info info;
2599 info.ob = &collect_obstack;
2600 info.check_dir = check_dir;
2601 info.first_time = true;
2603 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2604 obstack_1grow (&collect_obstack, '=');
2606 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2608 obstack_1grow (&collect_obstack, '\0');
2609 return XOBFINISH (&collect_obstack, char *);
2612 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2616 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2619 putenv (build_search_list (paths, env_var, true, do_multi));
2622 /* Check whether NAME can be accessed in MODE. This is like access,
2623 except that it never considers directories to be executable. */
2626 access_check (const char *name, int mode)
2632 if (stat (name, &st) < 0
2633 || S_ISDIR (st.st_mode))
2637 return access (name, mode);
2640 /* Callback for find_a_file. Appends the file name to the directory
2641 path. If the resulting file exists in the right mode, return the
2642 full pathname to the file. */
2644 struct file_at_path_info {
2653 file_at_path (char *path, void *data)
2655 struct file_at_path_info *info = data;
2656 size_t len = strlen (path);
2658 memcpy (path + len, info->name, info->name_len);
2659 len += info->name_len;
2661 /* Some systems have a suffix for executable files.
2662 So try appending that first. */
2663 if (info->suffix_len)
2665 memcpy (path + len, info->suffix, info->suffix_len + 1);
2666 if (access_check (path, info->mode) == 0)
2671 if (access_check (path, info->mode) == 0)
2677 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2678 access to check permissions. If DO_MULTI is true, search multilib
2679 paths then non-multilib paths, otherwise do not search multilib paths.
2680 Return 0 if not found, otherwise return its name, allocated with malloc. */
2683 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2686 struct file_at_path_info info;
2688 #ifdef DEFAULT_ASSEMBLER
2689 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2690 return xstrdup (DEFAULT_ASSEMBLER);
2693 #ifdef DEFAULT_LINKER
2694 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2695 return xstrdup (DEFAULT_LINKER);
2698 /* Determine the filename to execute (special case for absolute paths). */
2700 if (IS_ABSOLUTE_PATH (name))
2702 if (access (name, mode) == 0)
2703 return xstrdup (name);
2709 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2710 info.name_len = strlen (info.name);
2711 info.suffix_len = strlen (info.suffix);
2714 return for_each_path (pprefix, do_multi, info.name_len + info.suffix_len,
2715 file_at_path, &info);
2718 /* Ranking of prefixes in the sort list. -B prefixes are put before
2721 enum path_prefix_priority
2723 PREFIX_PRIORITY_B_OPT,
2724 PREFIX_PRIORITY_LAST
2727 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2728 order according to PRIORITY. Within each PRIORITY, new entries are
2731 If WARN is nonzero, we will warn if no file is found
2732 through this prefix. WARN should point to an int
2733 which will be set to 1 if this entry is used.
2735 COMPONENT is the value to be passed to update_path.
2737 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2738 the complete value of machine_suffix.
2739 2 means try both machine_suffix and just_machine_suffix. */
2742 add_prefix (struct path_prefix *pprefix, const char *prefix,
2743 const char *component, /* enum prefix_priority */ int priority,
2744 int require_machine_suffix, int os_multilib)
2746 struct prefix_list *pl, **prev;
2749 for (prev = &pprefix->plist;
2750 (*prev) != NULL && (*prev)->priority <= priority;
2751 prev = &(*prev)->next)
2754 /* Keep track of the longest prefix. */
2756 prefix = update_path (prefix, component);
2757 len = strlen (prefix);
2758 if (len > pprefix->max_len)
2759 pprefix->max_len = len;
2761 pl = XNEW (struct prefix_list);
2762 pl->prefix = prefix;
2763 pl->require_machine_suffix = require_machine_suffix;
2764 pl->priority = priority;
2765 pl->os_multilib = os_multilib;
2767 /* Insert after PREV. */
2772 /* Same as add_prefix, but prepending target_system_root to prefix. */
2773 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2775 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2776 const char *component,
2777 /* enum prefix_priority */ int priority,
2778 int require_machine_suffix, int os_multilib)
2780 if (!IS_ABSOLUTE_PATH (prefix))
2781 fatal ("system path '%s' is not absolute", prefix);
2783 if (target_system_root)
2785 if (target_sysroot_suffix)
2786 prefix = concat (target_sysroot_suffix, prefix, NULL);
2787 prefix = concat (target_system_root, prefix, NULL);
2789 /* We have to override this because GCC's notion of sysroot
2790 moves along with GCC. */
2794 add_prefix (pprefix, prefix, component, priority,
2795 require_machine_suffix, os_multilib);
2798 /* Execute the command specified by the arguments on the current line of spec.
2799 When using pipes, this includes several piped-together commands
2800 with `|' between them.
2802 Return 0 if successful, -1 if failed. */
2808 int n_commands; /* # of command. */
2810 struct pex_obj *pex;
2813 const char *prog; /* program name. */
2814 const char **argv; /* vector of args. */
2817 struct command *commands; /* each command buffer with above info. */
2819 gcc_assert (!processing_spec_function);
2821 /* Count # of piped commands. */
2822 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2823 if (strcmp (argbuf[i], "|") == 0)
2826 /* Get storage for each command. */
2827 commands = alloca (n_commands * sizeof (struct command));
2829 /* Split argbuf into its separate piped processes,
2830 and record info about each one.
2831 Also search for the programs that are to be run. */
2833 commands[0].prog = argbuf[0]; /* first command. */
2834 commands[0].argv = &argbuf[0];
2835 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2838 commands[0].argv[0] = string;
2840 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2841 if (strcmp (argbuf[i], "|") == 0)
2842 { /* each command. */
2843 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2844 fatal ("-pipe not supported");
2846 argbuf[i] = 0; /* termination of command args. */
2847 commands[n_commands].prog = argbuf[i + 1];
2848 commands[n_commands].argv = &argbuf[i + 1];
2849 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2852 commands[n_commands].argv[0] = string;
2856 argbuf[argbuf_index] = 0;
2858 /* If -v, print what we are about to do, and maybe query. */
2862 /* For help listings, put a blank line between sub-processes. */
2863 if (print_help_list)
2864 fputc ('\n', stderr);
2866 /* Print each piped command as a separate line. */
2867 for (i = 0; i < n_commands; i++)
2869 const char *const *j;
2871 if (verbose_only_flag)
2873 for (j = commands[i].argv; *j; j++)
2876 fprintf (stderr, " \"");
2877 for (p = *j; *p; ++p)
2879 if (*p == '"' || *p == '\\' || *p == '$')
2880 fputc ('\\', stderr);
2883 fputc ('"', stderr);
2887 for (j = commands[i].argv; *j; j++)
2888 fprintf (stderr, " %s", *j);
2890 /* Print a pipe symbol after all but the last command. */
2891 if (i + 1 != n_commands)
2892 fprintf (stderr, " |");
2893 fprintf (stderr, "\n");
2896 if (verbose_only_flag != 0)
2898 /* verbose_only_flag should act as if the spec was
2899 executed, so increment execution_count before
2900 returning. This prevents spurious warnings about
2901 unused linker input files, etc. */
2906 notice ("\nGo ahead? (y or n) ");
2910 while (getchar () != '\n')
2913 if (i != 'y' && i != 'Y')
2918 #ifdef ENABLE_VALGRIND_CHECKING
2919 /* Run the each command through valgrind. To simplify prepending the
2920 path to valgrind and the option "-q" (for quiet operation unless
2921 something triggers), we allocate a separate argv array. */
2923 for (i = 0; i < n_commands; i++)
2929 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
2932 argv = alloca ((argc + 3) * sizeof (char *));
2934 argv[0] = VALGRIND_PATH;
2936 for (j = 2; j < argc + 2; j++)
2937 argv[j] = commands[i].argv[j - 2];
2940 commands[i].argv = argv;
2941 commands[i].prog = argv[0];
2945 /* Run each piped subprocess. */
2947 pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
2948 programname, temp_filename);
2950 pfatal_with_name (_("pex_init failed"));
2952 for (i = 0; i < n_commands; i++)
2956 const char *string = commands[i].argv[0];
2958 errmsg = pex_run (pex,
2959 ((i + 1 == n_commands ? PEX_LAST : 0)
2960 | (string == commands[i].prog ? PEX_SEARCH : 0)),
2961 string, (char * const *) commands[i].argv,
2970 pfatal_with_name (errmsg);
2974 if (string != commands[i].prog)
2975 free ((void *) string);
2980 /* Wait for all the subprocesses to finish. */
2984 struct pex_time *times = NULL;
2987 statuses = alloca (n_commands * sizeof (int));
2988 if (!pex_get_status (pex, n_commands, statuses))
2989 pfatal_with_name (_("failed to get exit status"));
2993 times = alloca (n_commands * sizeof (struct pex_time));
2994 if (!pex_get_times (pex, n_commands, times))
2995 pfatal_with_name (_("failed to get process times"));
3000 for (i = 0; i < n_commands; ++i)
3002 int status = statuses[i];
3004 if (WIFSIGNALED (status))
3007 /* SIGPIPE is a special case. It happens in -pipe mode
3008 when the compiler dies before the preprocessor is done,
3009 or the assembler dies before the compiler is done.
3010 There's generally been an error already, and this is
3011 just fallout. So don't generate another error unless
3012 we would otherwise have succeeded. */
3013 if (WTERMSIG (status) == SIGPIPE
3014 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3022 Internal error: %s (program %s)\n\
3023 Please submit a full bug report.\n\
3024 See %s for instructions.",
3025 strsignal (WTERMSIG (status)), commands[i].prog,
3028 else if (WIFEXITED (status)
3029 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3031 if (WEXITSTATUS (status) > greatest_status)
3032 greatest_status = WEXITSTATUS (status);
3038 struct pex_time *pt = ×[i];
3041 ut = ((double) pt->user_seconds
3042 + (double) pt->user_microseconds / 1.0e6);
3043 st = ((double) pt->system_seconds
3044 + (double) pt->system_microseconds / 1.0e6);
3047 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3055 /* Find all the switches given to us
3056 and make a vector describing them.
3057 The elements of the vector are strings, one per switch given.
3058 If a switch uses following arguments, then the `part1' field
3059 is the switch itself and the `args' field
3060 is a null-terminated vector containing the following arguments.
3061 The `live_cond' field is:
3063 1 if the switch is true in a conditional spec,
3064 -1 if false (overridden by a later switch)
3065 -2 if this switch should be ignored (used in %<S)
3066 The `validated' field is nonzero if any spec has looked at this switch;
3067 if it remains zero at the end of the run, it must be meaningless. */
3070 #define SWITCH_FALSE -1
3071 #define SWITCH_IGNORE -2
3072 #define SWITCH_LIVE 1
3079 unsigned char validated;
3080 unsigned char ordering;
3083 static struct switchstr *switches;
3085 static int n_switches;
3087 /* Language is one of three things:
3089 1) The name of a real programming language.
3090 2) NULL, indicating that no one has figured out
3092 3) '*', indicating that the file should be passed
3097 const char *language;
3098 struct compiler *incompiler;
3103 /* Also a vector of input files specified. */
3105 static struct infile *infiles;
3109 /* True if multiple input files are being compiled to a single
3112 static bool combine_inputs;
3114 /* This counts the number of libraries added by lang_specific_driver, so that
3115 we can tell if there were any user supplied any files or libraries. */
3117 static int added_libraries;
3119 /* And a vector of corresponding output files is made up later. */
3121 const char **outfiles;
3123 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3125 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3126 is true if we should look for an executable suffix. DO_OBJ
3127 is true if we should look for an object suffix. */
3130 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3131 int do_obj ATTRIBUTE_UNUSED)
3133 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3141 len = strlen (name);
3143 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3144 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3145 if (do_obj && len > 2
3146 && name[len - 2] == '.'
3147 && name[len - 1] == 'o')
3149 obstack_grow (&obstack, name, len - 2);
3150 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3151 name = XOBFINISH (&obstack, const char *);
3155 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3156 /* If there is no filetype, make it the executable suffix (which includes
3157 the "."). But don't get confused if we have just "-o". */
3158 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3161 for (i = len - 1; i >= 0; i--)
3162 if (IS_DIR_SEPARATOR (name[i]))
3165 for (i++; i < len; i++)
3169 obstack_grow (&obstack, name, len);
3170 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3171 strlen (TARGET_EXECUTABLE_SUFFIX));
3172 name = XOBFINISH (&obstack, const char *);
3179 /* Display the command line switches accepted by gcc. */
3183 printf (_("Usage: %s [options] file...\n"), programname);
3184 fputs (_("Options:\n"), stdout);
3186 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3187 fputs (_(" --help Display this information\n"), stdout);
3188 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3189 fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout);
3190 fputs (_(" Display specific types of command line options\n"), stdout);
3192 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3193 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3194 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3195 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3196 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3197 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3198 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3199 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3200 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3202 -print-multi-lib Display the mapping between command line options and\n\
3203 multiple library search directories\n"), stdout);
3204 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3205 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3206 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3207 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3208 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3209 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3210 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3211 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3212 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3213 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3214 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3215 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3216 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3217 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3219 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3220 and libraries\n"), stdout);
3221 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3222 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3223 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3224 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3225 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3226 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3227 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3228 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3229 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3231 -x <language> Specify the language of the following input files\n\
3232 Permissible languages include: c c++ assembler none\n\
3233 'none' means revert to the default behavior of\n\
3234 guessing the language based on the file's extension\n\
3238 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3239 passed on to the various sub-processes invoked by %s. In order to pass\n\
3240 other options on to these processes the -W<letter> options must be used.\n\
3243 /* The rest of the options are displayed by invocations of the various
3248 add_preprocessor_option (const char *option, int len)
3250 n_preprocessor_options++;
3252 if (! preprocessor_options)
3253 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3255 preprocessor_options = xrealloc (preprocessor_options,
3256 n_preprocessor_options * sizeof (char *));
3258 preprocessor_options [n_preprocessor_options - 1] =
3259 save_string (option, len);
3263 add_assembler_option (const char *option, int len)
3265 n_assembler_options++;
3267 if (! assembler_options)
3268 assembler_options = XNEWVEC (char *, n_assembler_options);
3270 assembler_options = xrealloc (assembler_options,
3271 n_assembler_options * sizeof (char *));
3273 assembler_options [n_assembler_options - 1] = save_string (option, len);
3277 add_linker_option (const char *option, int len)
3281 if (! linker_options)
3282 linker_options = XNEWVEC (char *, n_linker_options);
3284 linker_options = xrealloc (linker_options,
3285 n_linker_options * sizeof (char *));
3287 linker_options [n_linker_options - 1] = save_string (option, len);
3290 /* Create the vector `switches' and its contents.
3291 Store its length in `n_switches'. */
3294 process_command (int argc, const char **argv)
3299 const char *spec_lang = 0;
3300 int last_language_n_infiles;
3301 int lang_n_infiles = 0;
3302 #ifdef MODIFY_TARGET_NAME
3303 int is_modify_target_name;
3306 const char *tooldir_prefix;
3308 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3312 added_libraries = 0;
3314 /* Figure compiler version from version string. */
3316 compiler_version = temp1 = xstrdup (version_string);
3318 for (; *temp1; ++temp1)
3327 /* If there is a -V or -b option (or both), process it now, before
3328 trying to interpret the rest of the command line.
3329 Use heuristic that all configuration names must have at least
3330 one dash '-'. This allows us to pass options starting with -b. */
3331 if (argc > 1 && argv[1][0] == '-'
3332 && (argv[1][1] == 'V' ||
3333 ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
3335 const char *new_version = DEFAULT_TARGET_VERSION;
3336 const char *new_machine = DEFAULT_TARGET_MACHINE;
3337 const char *progname = argv[0];
3342 while (argc > 1 && argv[1][0] == '-'
3343 && (argv[1][1] == 'V' ||
3344 ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
3346 char opt = argv[1][1];
3348 if (argv[1][2] != '\0')
3361 fatal ("'-%c' option must have argument", opt);
3368 for (baselen = strlen (progname); baselen > 0; baselen--)
3369 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3371 new_argv0 = xmemdup (progname, baselen,
3372 baselen + concat_length (new_version, new_machine,
3373 "-gcc-", NULL) + 1);
3374 strcpy (new_argv0 + baselen, new_machine);
3375 strcat (new_argv0, "-gcc-");
3376 strcat (new_argv0, new_version);
3378 new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
3379 (argc + 1) * sizeof (argv[0]));
3380 new_argv[0] = new_argv0;
3382 execvp (new_argv0, new_argv);
3383 fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
3386 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3387 see if we can create it from the pathname specified in argv[0]. */
3389 gcc_libexec_prefix = standard_libexec_prefix;
3391 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3392 if (!gcc_exec_prefix)
3394 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3395 standard_exec_prefix);
3396 gcc_libexec_prefix = make_relative_prefix (argv[0],
3397 standard_bindir_prefix,
3398 standard_libexec_prefix);
3399 if (gcc_exec_prefix)
3400 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3404 /* make_relative_prefix requires a program name, but
3405 GCC_EXEC_PREFIX is typically a directory name with a trailing
3406 / (which is ignored by make_relative_prefix), so append a
3408 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3409 gcc_libexec_prefix = make_relative_prefix (tmp_prefix,
3410 standard_exec_prefix,
3411 standard_libexec_prefix);
3413 /* The path is unrelocated, so fallback to the original setting. */
3414 if (!gcc_libexec_prefix)
3415 gcc_libexec_prefix = standard_libexec_prefix;
3421 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3422 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3423 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3425 if (gcc_exec_prefix)
3427 int len = strlen (gcc_exec_prefix);
3429 if (len > (int) sizeof ("/lib/gcc/") - 1
3430 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3432 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3433 if (IS_DIR_SEPARATOR (*temp)
3434 && strncmp (temp + 1, "lib", 3) == 0
3435 && IS_DIR_SEPARATOR (temp[4])
3436 && strncmp (temp + 5, "gcc", 3) == 0)
3437 len -= sizeof ("/lib/gcc/") - 1;
3440 set_std_prefix (gcc_exec_prefix, len);
3441 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3442 PREFIX_PRIORITY_LAST, 0, 0);
3443 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3444 PREFIX_PRIORITY_LAST, 0, 0);
3447 /* COMPILER_PATH and LIBRARY_PATH have values
3448 that are lists of directory names with colons. */
3450 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3453 const char *startp, *endp;
3454 char *nstore = alloca (strlen (temp) + 3);
3456 startp = endp = temp;
3459 if (*endp == PATH_SEPARATOR || *endp == 0)
3461 strncpy (nstore, startp, endp - startp);
3463 strcpy (nstore, concat (".", dir_separator_str, NULL));
3464 else if (!IS_DIR_SEPARATOR (endp[-1]))
3466 nstore[endp - startp] = DIR_SEPARATOR;
3467 nstore[endp - startp + 1] = 0;
3470 nstore[endp - startp] = 0;
3471 add_prefix (&exec_prefixes, nstore, 0,
3472 PREFIX_PRIORITY_LAST, 0, 0);
3473 add_prefix (&include_prefixes, nstore, 0,
3474 PREFIX_PRIORITY_LAST, 0, 0);
3477 endp = startp = endp + 1;
3484 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3485 if (temp && *cross_compile == '0')
3487 const char *startp, *endp;
3488 char *nstore = alloca (strlen (temp) + 3);
3490 startp = endp = temp;
3493 if (*endp == PATH_SEPARATOR || *endp == 0)
3495 strncpy (nstore, startp, endp - startp);
3497 strcpy (nstore, concat (".", dir_separator_str, NULL));
3498 else if (!IS_DIR_SEPARATOR (endp[-1]))
3500 nstore[endp - startp] = DIR_SEPARATOR;
3501 nstore[endp - startp + 1] = 0;
3504 nstore[endp - startp] = 0;
3505 add_prefix (&startfile_prefixes, nstore, NULL,
3506 PREFIX_PRIORITY_LAST, 0, 1);
3509 endp = startp = endp + 1;
3516 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3517 GET_ENVIRONMENT (temp, "LPATH");
3518 if (temp && *cross_compile == '0')
3520 const char *startp, *endp;
3521 char *nstore = alloca (strlen (temp) + 3);
3523 startp = endp = temp;
3526 if (*endp == PATH_SEPARATOR || *endp == 0)
3528 strncpy (nstore, startp, endp - startp);
3530 strcpy (nstore, concat (".", dir_separator_str, NULL));
3531 else if (!IS_DIR_SEPARATOR (endp[-1]))
3533 nstore[endp - startp] = DIR_SEPARATOR;
3534 nstore[endp - startp + 1] = 0;
3537 nstore[endp - startp] = 0;
3538 add_prefix (&startfile_prefixes, nstore, NULL,
3539 PREFIX_PRIORITY_LAST, 0, 1);
3542 endp = startp = endp + 1;
3549 /* Convert new-style -- options to old-style. */
3550 translate_options (&argc, (const char *const **) &argv);
3552 /* Do language-specific adjustment/addition of flags. */
3553 lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
3555 /* Scan argv twice. Here, the first time, just count how many switches
3556 there will be in their vector, and how many input files in theirs.
3557 Here we also parse the switches that cc itself uses (e.g. -v). */
3559 for (i = 1; i < argc; i++)
3561 if (! strcmp (argv[i], "-dumpspecs"))
3563 struct spec_list *sl;
3565 for (sl = specs; sl; sl = sl->next)
3566 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3567 if (link_command_spec)
3568 printf ("*link_command:\n%s\n\n", link_command_spec);
3571 else if (! strcmp (argv[i], "-dumpversion"))
3573 printf ("%s\n", spec_version);
3576 else if (! strcmp (argv[i], "-dumpmachine"))
3578 printf ("%s\n", spec_machine);
3581 else if (strcmp (argv[i], "-fversion") == 0)
3583 /* translate_options () has turned --version into -fversion. */
3584 printf (_("%s (GCC) %s\n"), programname, version_string);
3585 printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
3587 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3588 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3592 else if (strcmp (argv[i], "-fhelp") == 0)
3594 /* translate_options () has turned --help into -fhelp. */
3595 print_help_list = 1;
3597 /* We will be passing a dummy file on to the sub-processes. */
3601 /* CPP driver cannot obtain switch from cc1_options. */
3603 add_preprocessor_option ("--help", 6);
3604 add_assembler_option ("--help", 6);
3605 add_linker_option ("--help", 6);
3607 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3609 /* translate_options () has turned --help into -fhelp. */
3610 print_subprocess_help = 2;
3612 /* We will be passing a dummy file on to the sub-processes. */
3616 else if (strcmp (argv[i], "-ftarget-help") == 0)
3618 /* translate_options() has turned --target-help into -ftarget-help. */
3619 print_subprocess_help = 1;
3621 /* We will be passing a dummy file on to the sub-processes. */
3625 /* CPP driver cannot obtain switch from cc1_options. */
3627 add_preprocessor_option ("--target-help", 13);
3628 add_assembler_option ("--target-help", 13);
3629 add_linker_option ("--target-help", 13);
3631 else if (! strcmp (argv[i], "-pass-exit-codes"))
3633 pass_exit_codes = 1;
3636 else if (! strcmp (argv[i], "-print-search-dirs"))
3637 print_search_dirs = 1;
3638 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3639 print_file_name = "libgcc.a";
3640 else if (! strncmp (argv[i], "-print-file-name=", 17))
3641 print_file_name = argv[i] + 17;
3642 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3643 print_prog_name = argv[i] + 17;
3644 else if (! strcmp (argv[i], "-print-multi-lib"))
3645 print_multi_lib = 1;
3646 else if (! strcmp (argv[i], "-print-multi-directory"))
3647 print_multi_directory = 1;
3648 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3649 print_multi_os_directory = 1;
3650 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3651 print_sysroot_headers_suffix = 1;
3652 else if (! strncmp (argv[i], "-Wa,", 4))
3655 /* Pass the rest of this option to the assembler. */
3657 /* Split the argument at commas. */
3659 for (j = 4; argv[i][j]; j++)
3660 if (argv[i][j] == ',')
3662 add_assembler_option (argv[i] + prev, j - prev);
3666 /* Record the part after the last comma. */
3667 add_assembler_option (argv[i] + prev, j - prev);
3669 else if (! strncmp (argv[i], "-Wp,", 4))
3672 /* Pass the rest of this option to the preprocessor. */
3674 /* Split the argument at commas. */
3676 for (j = 4; argv[i][j]; j++)
3677 if (argv[i][j] == ',')
3679 add_preprocessor_option (argv[i] + prev, j - prev);
3683 /* Record the part after the last comma. */
3684 add_preprocessor_option (argv[i] + prev, j - prev);
3686 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3687 /* The +e options to the C++ front-end. */
3689 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3692 /* Split the argument at commas. */
3693 for (j = 3; argv[i][j]; j++)
3694 n_infiles += (argv[i][j] == ',');
3696 else if (strcmp (argv[i], "-Xlinker") == 0)
3699 fatal ("argument to '-Xlinker' is missing");
3704 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3707 fatal ("argument to '-Xpreprocessor' is missing");
3709 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3711 else if (strcmp (argv[i], "-Xassembler") == 0)
3714 fatal ("argument to '-Xassembler' is missing");
3716 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3718 else if (strcmp (argv[i], "-l") == 0)
3721 fatal ("argument to '-l' is missing");
3726 else if (strncmp (argv[i], "-l", 2) == 0)
3728 else if (strcmp (argv[i], "-save-temps") == 0)
3730 save_temps_flag = 1;
3733 else if (strcmp (argv[i], "-combine") == 0)
3738 else if (strcmp (argv[i], "-specs") == 0)
3740 struct user_specs *user = XNEW (struct user_specs);
3742 fatal ("argument to '-specs' is missing");
3744 user->next = (struct user_specs *) 0;
3745 user->filename = argv[i];
3746 if (user_specs_tail)
3747 user_specs_tail->next = user;
3749 user_specs_head = user;
3750 user_specs_tail = user;
3752 else if (strncmp (argv[i], "-specs=", 7) == 0)
3754 struct user_specs *user = XNEW (struct user_specs);
3755 if (strlen (argv[i]) == 7)
3756 fatal ("argument to '-specs=' is missing");
3758 user->next = (struct user_specs *) 0;
3759 user->filename = argv[i] + 7;
3760 if (user_specs_tail)
3761 user_specs_tail->next = user;
3763 user_specs_head = user;
3764 user_specs_tail = user;
3766 else if (strcmp (argv[i], "-time") == 0)
3768 else if (strcmp (argv[i], "-pipe") == 0)
3770 /* -pipe has to go into the switches array as well as
3775 else if (strcmp (argv[i], "-###") == 0)
3777 /* This is similar to -v except that there is no execution
3778 of the commands and the echoed arguments are quoted. It
3779 is intended for use in shell scripts to capture the
3780 driver-generated command line. */
3781 verbose_only_flag++;
3784 else if (argv[i][0] == '-' && argv[i][1] != 0)
3786 const char *p = &argv[i][1];
3792 if (NULL == strchr(argv[i] + 2, '-'))
3797 fatal ("'-%c' must come at the start of the command line", c);
3805 if (p[1] == 0 && i + 1 == argc)
3806 fatal ("argument to '-B' is missing");
3812 len = strlen (value);
3814 /* Catch the case where the user has forgotten to append a
3815 directory separator to the path. Note, they may be using
3816 -B to add an executable name prefix, eg "i386-elf-", in
3817 order to distinguish between multiple installations of
3818 GCC in the same directory. Hence we must check to see
3819 if appending a directory separator actually makes a
3820 valid directory name. */
3821 if (! IS_DIR_SEPARATOR (value [len - 1])
3822 && is_directory (value, false))
3824 char *tmp = XNEWVEC (char, len + 2);
3825 strcpy (tmp, value);
3826 tmp[len] = DIR_SEPARATOR;
3831 add_prefix (&exec_prefixes, value, NULL,
3832 PREFIX_PRIORITY_B_OPT, 0, 0);
3833 add_prefix (&startfile_prefixes, value, NULL,
3834 PREFIX_PRIORITY_B_OPT, 0, 0);
3835 add_prefix (&include_prefixes, value, NULL,
3836 PREFIX_PRIORITY_B_OPT, 0, 0);
3841 case 'v': /* Print our subcommands and print versions. */
3843 /* If they do anything other than exactly `-v', don't set
3844 verbose_flag; rather, continue on to give the error. */
3862 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3867 /* Forward scan, just in case -S or -c is specified
3874 if (argv[j][0] == '-')
3876 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3882 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3883 j += skip - (argv[j][2] != 0);
3884 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3891 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3893 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3895 argv[i] = convert_filename (argv[i], ! have_c, 0);
3902 #ifdef MODIFY_TARGET_NAME
3903 is_modify_target_name = 0;
3905 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3906 if (! strcmp (argv[i], modify_target[j].sw))
3908 char *new_name = xmalloc (strlen (modify_target[j].str)
3909 + strlen (spec_machine));
3912 int made_addition = 0;
3914 is_modify_target_name = 1;
3915 for (p = spec_machine, q = new_name; *p != 0; )
3917 if (modify_target[j].add_del == DELETE
3918 && (! strncmp (q, modify_target[j].str,
3919 strlen (modify_target[j].str))))
3920 p += strlen (modify_target[j].str);
3921 else if (modify_target[j].add_del == ADD
3922 && ! made_addition && *p == '-')
3924 for (r = modify_target[j].str; *r != 0; )
3932 spec_machine = new_name;
3935 if (is_modify_target_name)
3941 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3942 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3943 else if (WORD_SWITCH_TAKES_ARG (p))
3944 i += WORD_SWITCH_TAKES_ARG (p);
3954 if (save_temps_flag && use_pipes)
3956 /* -save-temps overrides -pipe, so that temp files are produced */
3957 if (save_temps_flag)
3958 error ("warning: -pipe ignored because -save-temps specified");
3962 /* Set up the search paths. We add directories that we expect to
3963 contain GNU Toolchain components before directories specified by
3964 the machine description so that we will find GNU components (like
3965 the GNU assembler) before those of the host system. */
3967 /* If we don't know where the toolchain has been installed, use the
3968 configured-in locations. */
3969 if (!gcc_exec_prefix)
3972 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
3973 PREFIX_PRIORITY_LAST, 1, 0);
3974 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
3975 PREFIX_PRIORITY_LAST, 2, 0);
3976 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3977 PREFIX_PRIORITY_LAST, 2, 0);
3979 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3980 PREFIX_PRIORITY_LAST, 1, 0);
3983 /* If not cross-compiling, search well-known system locations. */
3984 if (*cross_compile == '0')
3987 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3988 PREFIX_PRIORITY_LAST, 2, 0);
3989 add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
3990 PREFIX_PRIORITY_LAST, 2, 0);
3992 add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
3993 PREFIX_PRIORITY_LAST, 1, 0);
3996 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
3997 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3998 dir_separator_str, NULL);
4000 /* Look for tools relative to the location from which the driver is
4001 running, or, if that is not available, the configured prefix. */
4003 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4004 spec_machine, dir_separator_str,
4005 spec_version, dir_separator_str, tooldir_prefix, NULL);
4007 add_prefix (&exec_prefixes,
4008 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4009 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4010 add_prefix (&startfile_prefixes,
4011 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4012 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4014 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4015 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4016 then consider it to relocate with the rest of the GCC installation
4017 if GCC_EXEC_PREFIX is set.
4018 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4019 if (target_system_root && gcc_exec_prefix)
4021 char *tmp_prefix = make_relative_prefix (argv[0],
4022 standard_bindir_prefix,
4023 target_system_root);
4024 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4026 target_system_root = tmp_prefix;
4027 target_system_root_changed = 1;
4032 /* More prefixes are enabled in main, after we read the specs file
4033 and determine whether this is cross-compilation or not. */
4035 /* Then create the space for the vectors and scan again. */
4037 switches = XNEWVEC (struct switchstr, n_switches + 1);
4038 infiles = XNEWVEC (struct infile, n_infiles + 1);
4041 last_language_n_infiles = -1;
4043 /* This, time, copy the text of each switch and store a pointer
4044 to the copy in the vector of switches.
4045 Store all the infiles in their vector. */
4047 for (i = 1; i < argc; i++)
4049 /* Just skip the switches that were handled by the preceding loop. */
4050 #ifdef MODIFY_TARGET_NAME
4051 is_modify_target_name = 0;
4053 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4054 if (! strcmp (argv[i], modify_target[j].sw))
4055 is_modify_target_name = 1;
4057 if (is_modify_target_name)
4061 if (! strncmp (argv[i], "-Wa,", 4))
4063 else if (! strncmp (argv[i], "-Wp,", 4))
4065 else if (! strcmp (argv[i], "-pass-exit-codes"))
4067 else if (! strcmp (argv[i], "-print-search-dirs"))
4069 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4071 else if (! strncmp (argv[i], "-print-file-name=", 17))
4073 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4075 else if (! strcmp (argv[i], "-print-multi-lib"))
4077 else if (! strcmp (argv[i], "-print-multi-directory"))
4079 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4081 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4083 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4085 target_system_root = argv[i] + strlen ("--sysroot=");
4086 target_system_root_changed = 1;
4088 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4090 /* Compensate for the +e options to the C++ front-end;
4091 they're there simply for cfront call-compatibility. We do
4092 some magic in default_compilers to pass them down properly.
4093 Note we deliberately start at the `+' here, to avoid passing
4094 -e0 or -e1 down into the linker. */
4095 switches[n_switches].part1 = &argv[i][0];
4096 switches[n_switches].args = 0;
4097 switches[n_switches].live_cond = SWITCH_OK;
4098 switches[n_switches].validated = 0;
4101 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4104 /* Split the argument at commas. */
4106 for (j = 4; argv[i][j]; j++)
4107 if (argv[i][j] == ',')
4109 infiles[n_infiles].language = "*";
4110 infiles[n_infiles++].name
4111 = save_string (argv[i] + prev, j - prev);
4114 /* Record the part after the last comma. */
4115 infiles[n_infiles].language = "*";
4116 infiles[n_infiles++].name = argv[i] + prev;
4118 else if (strcmp (argv[i], "-Xlinker") == 0)
4120 infiles[n_infiles].language = "*";
4121 infiles[n_infiles++].name = argv[++i];
4123 /* Xassembler and Xpreprocessor were already handled in the first argv
4124 scan, so all we need to do here is ignore them and their argument. */
4125 else if (strcmp (argv[i], "-Xassembler") == 0)
4127 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4129 else if (strcmp (argv[i], "-l") == 0)
4130 { /* POSIX allows separation of -l and the lib arg;
4131 canonicalize by concatenating -l with its arg */
4132 infiles[n_infiles].language = "*";
4133 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4135 else if (strncmp (argv[i], "-l", 2) == 0)
4137 infiles[n_infiles].language = "*";
4138 infiles[n_infiles++].name = argv[i];
4140 else if (strcmp (argv[i], "-specs") == 0)
4142 else if (strncmp (argv[i], "-specs=", 7) == 0)
4144 else if (strcmp (argv[i], "-time") == 0)
4146 else if (strcmp (argv[i], "-###") == 0)
4148 else if (argv[i][0] == '-' && argv[i][1] != 0)
4150 const char *p = &argv[i][1];
4155 if (p[1] == 0 && i + 1 == argc)
4156 fatal ("argument to '-x' is missing");
4158 spec_lang = argv[++i];
4161 if (! strcmp (spec_lang, "none"))
4162 /* Suppress the warning if -xnone comes after the last input
4163 file, because alternate command interfaces like g++ might
4164 find it useful to place -xnone after each input file. */
4167 last_language_n_infiles = n_infiles;
4170 switches[n_switches].part1 = p;
4171 /* Deal with option arguments in separate argv elements. */
4172 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4173 || WORD_SWITCH_TAKES_ARG (p))
4176 int n_args = WORD_SWITCH_TAKES_ARG (p);
4180 /* Count only the option arguments in separate argv elements. */
4181 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4183 if (i + n_args >= argc)
4184 fatal ("argument to '-%s' is missing", p);
4185 switches[n_switches].args
4186 = XNEWVEC (const char *, n_args + 1);
4188 switches[n_switches].args[j++] = argv[++i];
4189 /* Null-terminate the vector. */
4190 switches[n_switches].args[j] = 0;
4192 else if (strchr (switches_need_spaces, c))
4194 /* On some systems, ld cannot handle some options without
4195 a space. So split the option from its argument. */
4196 char *part1 = XNEWVEC (char, 2);
4200 switches[n_switches].part1 = part1;
4201 switches[n_switches].args = XNEWVEC (const char *, 2);
4202 switches[n_switches].args[0] = xstrdup (p+1);
4203 switches[n_switches].args[1] = 0;
4206 switches[n_switches].args = 0;
4208 switches[n_switches].live_cond = SWITCH_OK;
4209 switches[n_switches].validated = 0;
4210 switches[n_switches].ordering = 0;
4211 /* These are always valid, since gcc.c itself understands them. */
4212 if (!strcmp (p, "save-temps")
4213 || !strcmp (p, "static-libgcc")
4214 || !strcmp (p, "shared-libgcc")
4215 || !strcmp (p, "pipe"))
4216 switches[n_switches].validated = 1;
4219 char ch = switches[n_switches].part1[0];
4221 switches[n_switches].validated = 1;
4227 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4228 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4231 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4233 perror_with_name (argv[i]);
4238 infiles[n_infiles].language = spec_lang;
4239 infiles[n_infiles++].name = argv[i];
4244 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4245 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4247 /* Ensure we only invoke each subprocess once. */
4248 if (print_subprocess_help || print_help_list)
4252 /* Create a dummy input file, so that we can pass
4253 the help option on to the various sub-processes. */
4254 infiles[0].language = "c";
4255 infiles[0].name = "help-dummy";
4258 switches[n_switches].part1 = 0;
4259 infiles[n_infiles].name = 0;
4262 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4263 and place that in the environment. */
4266 set_collect_gcc_options (void)
4271 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4273 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4274 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4277 for (i = 0; (int) i < n_switches; i++)
4279 const char *const *args;
4282 obstack_grow (&collect_obstack, " ", 1);
4286 /* Ignore elided switches. */
4287 if (switches[i].live_cond == SWITCH_IGNORE)
4290 obstack_grow (&collect_obstack, "'-", 2);
4291 q = switches[i].part1;
4292 while ((p = strchr (q, '\'')))
4294 obstack_grow (&collect_obstack, q, p - q);
4295 obstack_grow (&collect_obstack, "'\\''", 4);
4298 obstack_grow (&collect_obstack, q, strlen (q));
4299 obstack_grow (&collect_obstack, "'", 1);
4301 for (args = switches[i].args; args && *args; args++)
4303 obstack_grow (&collect_obstack, " '", 2);
4305 while ((p = strchr (q, '\'')))
4307 obstack_grow (&collect_obstack, q, p - q);
4308 obstack_grow (&collect_obstack, "'\\''", 4);
4311 obstack_grow (&collect_obstack, q, strlen (q));
4312 obstack_grow (&collect_obstack, "'", 1);
4315 obstack_grow (&collect_obstack, "\0", 1);
4316 putenv (XOBFINISH (&collect_obstack, char *));
4319 /* Process a spec string, accumulating and running commands. */
4321 /* These variables describe the input file name.
4322 input_file_number is the index on outfiles of this file,
4323 so that the output file name can be stored for later use by %o.
4324 input_basename is the start of the part of the input file
4325 sans all directory names, and basename_length is the number
4326 of characters starting there excluding the suffix .c or whatever. */
4328 static const char *input_filename;
4329 static int input_file_number;
4330 size_t input_filename_length;
4331 static int basename_length;
4332 static int suffixed_basename_length;
4333 static const char *input_basename;
4334 static const char *input_suffix;
4335 #ifndef HOST_LACKS_INODE_NUMBERS
4336 static struct stat input_stat;
4338 static int input_stat_set;
4340 /* The compiler used to process the current input file. */
4341 static struct compiler *input_file_compiler;
4343 /* These are variables used within do_spec and do_spec_1. */
4345 /* Nonzero if an arg has been started and not yet terminated
4346 (with space, tab or newline). */
4347 static int arg_going;
4349 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4350 is a temporary file name. */
4351 static int delete_this_arg;
4353 /* Nonzero means %w has been seen; the next arg to be terminated
4354 is the output file name of this compilation. */
4355 static int this_is_output_file;
4357 /* Nonzero means %s has been seen; the next arg to be terminated
4358 is the name of a library file and we should try the standard
4359 search dirs for it. */
4360 static int this_is_library_file;
4362 /* Nonzero means that the input of this command is coming from a pipe. */
4363 static int input_from_pipe;
4365 /* Nonnull means substitute this for any suffix when outputting a switches
4367 static const char *suffix_subst;
4369 /* Process the spec SPEC and run the commands specified therein.
4370 Returns 0 if the spec is successfully processed; -1 if failed. */
4373 do_spec (const char *spec)
4377 value = do_spec_2 (spec);
4379 /* Force out any unfinished command.
4380 If -pipe, this forces out the last command if it ended in `|'. */
4383 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4386 set_collect_gcc_options ();
4388 if (argbuf_index > 0)
4396 do_spec_2 (const char *spec)
4403 delete_this_arg = 0;
4404 this_is_output_file = 0;
4405 this_is_library_file = 0;
4406 input_from_pipe = 0;
4407 suffix_subst = NULL;
4409 result = do_spec_1 (spec, 0, NULL);
4411 /* End any pending argument. */
4414 obstack_1grow (&obstack, 0);
4415 string = XOBFINISH (&obstack, const char *);
4416 if (this_is_library_file)
4417 string = find_file (string);
4418 store_arg (string, delete_this_arg, this_is_output_file);
4419 if (this_is_output_file)
4420 outfiles[input_file_number] = string;
4428 /* Process the given spec string and add any new options to the end
4429 of the switches/n_switches array. */
4432 do_option_spec (const char *name, const char *spec)
4434 unsigned int i, value_count, value_len;
4435 const char *p, *q, *value;
4436 char *tmp_spec, *tmp_spec_p;
4438 if (configure_default_options[0].name == NULL)
4441 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4442 if (strcmp (configure_default_options[i].name, name) == 0)
4444 if (i == ARRAY_SIZE (configure_default_options))
4447 value = configure_default_options[i].value;
4448 value_len = strlen (value);
4450 /* Compute the size of the final spec. */
4453 while ((p = strstr (p, "%(VALUE)")) != NULL)
4459 /* Replace each %(VALUE) by the specified value. */
4460 tmp_spec = alloca (strlen (spec) + 1
4461 + value_count * (value_len - strlen ("%(VALUE)")));
4462 tmp_spec_p = tmp_spec;
4464 while ((p = strstr (q, "%(VALUE)")) != NULL)
4466 memcpy (tmp_spec_p, q, p - q);
4467 tmp_spec_p = tmp_spec_p + (p - q);
4468 memcpy (tmp_spec_p, value, value_len);
4469 tmp_spec_p += value_len;
4470 q = p + strlen ("%(VALUE)");
4472 strcpy (tmp_spec_p, q);
4474 do_self_spec (tmp_spec);
4477 /* Process the given spec string and add any new options to the end
4478 of the switches/n_switches array. */
4481 do_self_spec (const char *spec)
4484 do_spec_1 (" ", 0, NULL);
4486 if (argbuf_index > 0)
4491 n_switches += argbuf_index;
4492 switches = xrealloc (switches,
4493 sizeof (struct switchstr) * (n_switches + 1));
4495 switches[n_switches] = switches[first];
4496 for (i = 0; i < argbuf_index; i++)
4498 struct switchstr *sw;
4500 /* Each switch should start with '-'. */
4501 if (argbuf[i][0] != '-')
4502 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4504 sw = &switches[i + first];
4505 sw->part1 = &argbuf[i][1];
4507 sw->live_cond = SWITCH_OK;
4514 /* Callback for processing %D and %I specs. */
4516 struct spec_path_info {
4521 bool separate_options;
4525 spec_path (char *path, void *data)
4527 struct spec_path_info *info = data;
4531 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
4534 if (info->append_len != 0)
4536 len = strlen (path);
4537 memcpy (path + len, info->append, info->append_len + 1);
4540 if (!is_directory (path, true))
4543 do_spec_1 (info->option, 1, NULL);
4544 if (info->separate_options)
4545 do_spec_1 (" ", 0, NULL);
4547 if (info->append_len == 0)
4549 len = strlen (path);
4550 save = path[len - 1];
4551 if (IS_DIR_SEPARATOR (path[len - 1]))
4552 path[len - 1] = '\0';
4555 do_spec_1 (path, 1, NULL);
4556 do_spec_1 (" ", 0, NULL);
4558 /* Must not damage the original path. */
4559 if (info->append_len == 0)
4560 path[len - 1] = save;
4565 /* Process the sub-spec SPEC as a portion of a larger spec.
4566 This is like processing a whole spec except that we do
4567 not initialize at the beginning and we do not supply a
4568 newline by default at the end.
4569 INSWITCH nonzero means don't process %-sequences in SPEC;
4570 in this case, % is treated as an ordinary character.
4571 This is used while substituting switches.
4572 INSWITCH nonzero also causes SPC not to terminate an argument.
4574 Value is zero unless a line was finished
4575 and the command on that line reported an error. */
4578 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
4580 const char *p = spec;
4587 /* If substituting a switch, treat all chars like letters.
4588 Otherwise, NL, SPC, TAB and % are special. */
4589 switch (inswitch ? 'a' : c)
4592 /* End of line: finish any pending argument,
4593 then run the pending command if one has been started. */
4596 obstack_1grow (&obstack, 0);
4597 string = XOBFINISH (&obstack, const char *);
4598 if (this_is_library_file)
4599 string = find_file (string);
4600 store_arg (string, delete_this_arg, this_is_output_file);
4601 if (this_is_output_file)
4602 outfiles[input_file_number] = string;
4606 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4608 /* A `|' before the newline means use a pipe here,
4609 but only if -pipe was specified.
4610 Otherwise, execute now and don't pass the `|' as an arg. */
4613 input_from_pipe = 1;
4620 set_collect_gcc_options ();
4622 if (argbuf_index > 0)
4628 /* Reinitialize for a new command, and for a new argument. */
4631 delete_this_arg = 0;
4632 this_is_output_file = 0;
4633 this_is_library_file = 0;
4634 input_from_pipe = 0;
4638 /* End any pending argument. */
4641 obstack_1grow (&obstack, 0);
4642 string = XOBFINISH (&obstack, const char *);
4643 if (this_is_library_file)
4644 string = find_file (string);
4645 store_arg (string, delete_this_arg, this_is_output_file);
4646 if (this_is_output_file)
4647 outfiles[input_file_number] = string;
4651 obstack_1grow (&obstack, c);
4657 /* Space or tab ends an argument if one is pending. */
4660 obstack_1grow (&obstack, 0);
4661 string = XOBFINISH (&obstack, const char *);
4662 if (this_is_library_file)
4663 string = find_file (string);
4664 store_arg (string, delete_this_arg, this_is_output_file);
4665 if (this_is_output_file)
4666 outfiles[input_file_number] = string;
4668 /* Reinitialize for a new argument. */
4670 delete_this_arg = 0;
4671 this_is_output_file = 0;
4672 this_is_library_file = 0;
4679 fatal ("spec '%s' invalid", spec);
4682 obstack_grow (&obstack, input_basename, basename_length);
4687 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4692 delete_this_arg = 2;
4695 /* Dump out the directories specified with LIBRARY_PATH,
4696 followed by the absolute directories
4697 that we search for startfiles. */
4700 struct spec_path_info info;
4703 info.append_len = 0;
4704 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4705 /* Used on systems which record the specified -L dirs
4706 and use them to search for dynamic linking.
4707 Relative directories always come from -B,
4708 and it is better not to use them for searching
4709 at run time. In particular, stage1 loses. */
4710 info.omit_relative = true;
4712 info.omit_relative = false;
4714 info.separate_options = false;
4716 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
4721 /* %efoo means report an error with `foo' as error message
4722 and don't execute any more commands for this file. */
4726 while (*p != 0 && *p != '\n')
4728 buf = alloca (p - q + 1);
4729 strncpy (buf, q, p - q);
4736 /* %nfoo means report a notice with `foo' on stderr. */
4740 while (*p != 0 && *p != '\n')
4742 buf = alloca (p - q + 1);
4743 strncpy (buf, q, p - q);
4745 notice ("%s\n", buf);
4755 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4756 defined, and it is not a directory, and it is
4757 writable, use it. Otherwise, treat this like any
4758 other temporary file. */
4760 if ((!save_temps_flag)
4761 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4762 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4764 obstack_grow (&obstack, HOST_BIT_BUCKET,
4765 strlen (HOST_BIT_BUCKET));
4766 delete_this_arg = 0;
4771 goto create_temp_file;
4775 obstack_1grow (&obstack, '-');
4776 delete_this_arg = 0;
4779 /* consume suffix */
4780 while (*p == '.' || ISALNUM ((unsigned char) *p))
4782 if (p[0] == '%' && p[1] == 'O')
4787 goto create_temp_file;
4791 /* consume suffix */
4792 while (*p == '.' || ISALNUM ((unsigned char) *p))
4794 if (p[0] == '%' && p[1] == 'O')
4799 goto create_temp_file;
4805 struct temp_name *t;
4807 const char *suffix = p;
4808 char *saved_suffix = NULL;
4810 while (*p == '.' || ISALNUM ((unsigned char) *p))
4812 suffix_length = p - suffix;
4813 if (p[0] == '%' && p[1] == 'O')
4816 /* We don't support extra suffix characters after %O. */
4817 if (*p == '.' || ISALNUM ((unsigned char) *p))
4818 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
4819 if (suffix_length == 0)
4820 suffix = TARGET_OBJECT_SUFFIX;
4824 = XNEWVEC (char, suffix_length
4825 + strlen (TARGET_OBJECT_SUFFIX));
4826 strncpy (saved_suffix, suffix, suffix_length);
4827 strcpy (saved_suffix + suffix_length,
4828 TARGET_OBJECT_SUFFIX);
4830 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4833 /* If the input_filename has the same suffix specified
4834 for the %g, %u, or %U, and -save-temps is specified,
4835 we could end up using that file as an intermediate
4836 thus clobbering the user's source file (.e.g.,
4837 gcc -save-temps foo.s would clobber foo.s with the
4838 output of cpp0). So check for this condition and
4839 generate a temp file as the intermediate. */
4841 if (save_temps_flag)
4843 temp_filename_length = basename_length + suffix_length;
4844 temp_filename = alloca (temp_filename_length + 1);
4845 strncpy ((char *) temp_filename, input_basename, basename_length);
4846 strncpy ((char *) temp_filename + basename_length, suffix,
4848 *((char *) temp_filename + temp_filename_length) = '\0';
4849 if (strcmp (temp_filename, input_filename) != 0)
4851 #ifndef HOST_LACKS_INODE_NUMBERS
4852 struct stat st_temp;
4854 /* Note, set_input() resets input_stat_set to 0. */
4855 if (input_stat_set == 0)
4857 input_stat_set = stat (input_filename, &input_stat);
4858 if (input_stat_set >= 0)
4862 /* If we have the stat for the input_filename
4863 and we can do the stat for the temp_filename
4864 then the they could still refer to the same
4865 file if st_dev/st_ino's are the same. */
4866 if (input_stat_set != 1
4867 || stat (temp_filename, &st_temp) < 0
4868 || input_stat.st_dev != st_temp.st_dev
4869 || input_stat.st_ino != st_temp.st_ino)
4871 /* Just compare canonical pathnames. */
4872 char* input_realname = lrealpath (input_filename);
4873 char* temp_realname = lrealpath (temp_filename);
4874 bool files_differ = strcmp (input_realname, temp_realname);
4875 free (input_realname);
4876 free (temp_realname);
4880 temp_filename = save_string (temp_filename,
4881 temp_filename_length + 1);
4882 obstack_grow (&obstack, temp_filename,
4883 temp_filename_length);
4885 delete_this_arg = 0;
4891 /* See if we already have an association of %g/%u/%U and
4893 for (t = temp_names; t; t = t->next)
4894 if (t->length == suffix_length
4895 && strncmp (t->suffix, suffix, suffix_length) == 0
4896 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
4899 /* Make a new association if needed. %u and %j
4901 if (t == 0 || c == 'u' || c == 'j')
4905 t = xmalloc (sizeof (struct temp_name));
4906 t->next = temp_names;
4909 t->length = suffix_length;
4912 t->suffix = saved_suffix;
4913 saved_suffix = NULL;
4916 t->suffix = save_string (suffix, suffix_length);
4917 t->unique = (c == 'u' || c == 'U' || c == 'j');
4918 temp_filename = make_temp_file (t->suffix);
4919 temp_filename_length = strlen (temp_filename);
4920 t->filename = temp_filename;
4921 t->filename_length = temp_filename_length;
4925 free (saved_suffix);
4927 obstack_grow (&obstack, t->filename, t->filename_length);
4928 delete_this_arg = 1;
4936 for (i = 0; (int) i < n_infiles; i++)
4937 if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
4938 if (infiles[i].incompiler == input_file_compiler)
4940 store_arg (infiles[i].name, 0, 0);
4941 infiles[i].compiled = true;
4946 obstack_grow (&obstack, input_filename, input_filename_length);
4953 struct spec_path_info info;
4957 do_spec_1 ("-imultilib", 1, NULL);
4958 /* Make this a separate argument. */
4959 do_spec_1 (" ", 0, NULL);
4960 do_spec_1 (multilib_dir, 1, NULL);
4961 do_spec_1 (" ", 0, NULL);
4964 if (gcc_exec_prefix)
4966 do_spec_1 ("-iprefix", 1, NULL);
4967 /* Make this a separate argument. */
4968 do_spec_1 (" ", 0, NULL);
4969 do_spec_1 (gcc_exec_prefix, 1, NULL);
4970 do_spec_1 (" ", 0, NULL);
4973 if (target_system_root_changed ||
4974 (target_system_root && target_sysroot_hdrs_suffix))
4976 do_spec_1 ("-isysroot", 1, NULL);
4977 /* Make this a separate argument. */
4978 do_spec_1 (" ", 0, NULL);
4979 do_spec_1 (target_system_root, 1, NULL);
4980 if (target_sysroot_hdrs_suffix)
4981 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
4982 do_spec_1 (" ", 0, NULL);
4985 info.option = "-isystem";
4986 info.append = "include";
4987 info.append_len = strlen (info.append);
4988 info.omit_relative = false;
4989 info.separate_options = true;
4991 for_each_path (&include_prefixes, false, info.append_len,
4994 info.append = "include-fixed";
4995 if (*sysroot_hdrs_suffix_spec)
4996 info.append = concat (info.append, dir_separator_str,
4997 multilib_dir, NULL);
4998 info.append_len = strlen (info.append);
4999 for_each_path (&include_prefixes, false, info.append_len,
5006 int max = n_infiles;
5007 max += lang_specific_extra_outfiles;
5009 for (i = 0; i < max; i++)
5011 store_arg (outfiles[i], 0, 0);
5016 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5021 this_is_library_file = 1;
5025 outfiles[input_file_number] = NULL;
5029 this_is_output_file = 1;
5034 int cur_index = argbuf_index;
5035 /* Handle the {...} following the %W. */
5037 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5038 p = handle_braces (p + 1);
5041 /* End any pending argument. */
5044 obstack_1grow (&obstack, 0);
5045 string = XOBFINISH (&obstack, const char *);
5046 if (this_is_library_file)
5047 string = find_file (string);
5048 store_arg (string, delete_this_arg, this_is_output_file);
5049 if (this_is_output_file)
5050 outfiles[input_file_number] = string;
5053 /* If any args were output, mark the last one for deletion
5055 if (argbuf_index != cur_index)
5056 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5060 /* %x{OPTION} records OPTION for %X to output. */
5066 /* Skip past the option value and make a copy. */
5068 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5071 string = save_string (p1 + 1, p - p1 - 2);
5073 /* See if we already recorded this option. */
5074 for (i = 0; i < n_linker_options; i++)
5075 if (! strcmp (string, linker_options[i]))
5081 /* This option is new; add it. */
5082 add_linker_option (string, strlen (string));
5086 /* Dump out the options accumulated previously using %x. */
5088 for (i = 0; i < n_linker_options; i++)
5090 do_spec_1 (linker_options[i], 1, NULL);
5091 /* Make each accumulated option a separate argument. */
5092 do_spec_1 (" ", 0, NULL);
5096 /* Dump out the options accumulated previously using -Wa,. */
5098 for (i = 0; i < n_assembler_options; i++)
5100 do_spec_1 (assembler_options[i], 1, NULL);
5101 /* Make each accumulated option a separate argument. */
5102 do_spec_1 (" ", 0, NULL);
5106 /* Dump out the options accumulated previously using -Wp,. */
5108 for (i = 0; i < n_preprocessor_options; i++)
5110 do_spec_1 (preprocessor_options[i], 1, NULL);
5111 /* Make each accumulated option a separate argument. */
5112 do_spec_1 (" ", 0, NULL);
5116 /* Here are digits and numbers that just process
5117 a certain constant string as a spec. */
5120 value = do_spec_1 (cc1_spec, 0, NULL);
5126 value = do_spec_1 (cc1plus_spec, 0, NULL);
5132 value = do_spec_1 (asm_spec, 0, NULL);
5138 value = do_spec_1 (asm_final_spec, 0, NULL);
5145 const char *const spec
5146 = (input_file_compiler->cpp_spec
5147 ? input_file_compiler->cpp_spec
5149 value = do_spec_1 (spec, 0, NULL);
5156 value = do_spec_1 (endfile_spec, 0, NULL);
5162 value = do_spec_1 (link_spec, 0, NULL);
5168 value = do_spec_1 (lib_spec, 0, NULL);
5174 value = do_spec_1 (libgcc_spec, 0, NULL);
5180 /* We assume there is a directory
5181 separator at the end of this string. */
5182 if (target_system_root)
5184 obstack_grow (&obstack, target_system_root,
5185 strlen (target_system_root));
5186 if (target_sysroot_suffix)
5187 obstack_grow (&obstack, target_sysroot_suffix,
5188 strlen (target_sysroot_suffix));
5193 value = do_spec_1 (startfile_spec, 0, NULL);
5198 /* Here we define characters other than letters and digits. */
5201 p = handle_braces (p);
5207 p = handle_spec_function (p);
5213 obstack_1grow (&obstack, '%');
5220 while (p[len] && p[len] != ' ' && p[len] != '%')
5222 suffix_subst = save_string (p - 1, len + 1);
5227 /* Henceforth ignore the option(s) matching the pattern
5232 int have_wildcard = 0;
5235 while (p[len] && p[len] != ' ' && p[len] != '\t')
5238 if (p[len-1] == '*')
5241 for (i = 0; i < n_switches; i++)
5242 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5243 && (have_wildcard || switches[i].part1[len] == '\0'))
5245 switches[i].live_cond = SWITCH_IGNORE;
5246 switches[i].validated = 1;
5254 if (soft_matched_part)
5256 do_spec_1 (soft_matched_part, 1, NULL);
5257 do_spec_1 (" ", 0, NULL);
5260 /* Catch the case where a spec string contains something like
5261 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5262 hand side of the :. */
5263 error ("spec failure: '%%*' has not been initialized by pattern match");
5266 /* Process a string found as the value of a spec given by name.
5267 This feature allows individual machine descriptions
5268 to add and use their own specs.
5269 %[...] modifies -D options the way %P does;
5270 %(...) uses the spec unmodified. */
5272 error ("warning: use of obsolete %%[ operator in specs");
5275 const char *name = p;
5276 struct spec_list *sl;
5279 /* The string after the S/P is the name of a spec that is to be
5281 while (*p && *p != ')' && *p != ']')
5284 /* See if it's in the list. */
5285 for (len = p - name, sl = specs; sl; sl = sl->next)
5286 if (sl->name_len == len && !strncmp (sl->name, name, len))
5288 name = *(sl->ptr_spec);
5290 notice ("Processing spec %c%s%c, which is '%s'\n",
5291 c, sl->name, (c == '(') ? ')' : ']', name);
5300 value = do_spec_1 (name, 0, NULL);
5306 char *x = alloca (strlen (name) * 2 + 1);
5308 const char *y = name;
5311 /* Copy all of NAME into BUF, but put __ after
5312 every -D and at the end of each arg. */
5315 if (! strncmp (y, "-D", 2))
5326 && (*y == ' ' || *y == '\t' || *y == '='
5327 || *y == '}' || *y == 0))
5340 value = do_spec_1 (buf, 0, NULL);
5346 /* Discard the closing paren or bracket. */
5353 error ("spec failure: unrecognized spec option '%c'", c);
5359 /* Backslash: treat next character as ordinary. */
5364 /* Ordinary character: put it into the current argument. */
5365 obstack_1grow (&obstack, c);
5369 /* End of string. If we are processing a spec function, we need to
5370 end any pending argument. */
5371 if (processing_spec_function && arg_going)
5373 obstack_1grow (&obstack, 0);
5374 string = XOBFINISH (&obstack, const char *);
5375 if (this_is_library_file)
5376 string = find_file (string);
5377 store_arg (string, delete_this_arg, this_is_output_file);
5378 if (this_is_output_file)
5379 outfiles[input_file_number] = string;
5386 /* Look up a spec function. */
5388 static const struct spec_function *
5389 lookup_spec_function (const char *name)
5391 const struct spec_function *sf;
5393 for (sf = static_spec_functions; sf->name != NULL; sf++)
5394 if (strcmp (sf->name, name) == 0)
5400 /* Evaluate a spec function. */
5403 eval_spec_function (const char *func, const char *args)
5405 const struct spec_function *sf;
5406 const char *funcval;
5408 /* Saved spec processing context. */
5409 int save_argbuf_index;
5410 int save_argbuf_length;
5411 const char **save_argbuf;
5414 int save_delete_this_arg;
5415 int save_this_is_output_file;
5416 int save_this_is_library_file;
5417 int save_input_from_pipe;
5418 const char *save_suffix_subst;
5421 sf = lookup_spec_function (func);
5423 fatal ("unknown spec function '%s'", func);
5425 /* Push the spec processing context. */
5426 save_argbuf_index = argbuf_index;
5427 save_argbuf_length = argbuf_length;
5428 save_argbuf = argbuf;
5430 save_arg_going = arg_going;
5431 save_delete_this_arg = delete_this_arg;
5432 save_this_is_output_file = this_is_output_file;
5433 save_this_is_library_file = this_is_library_file;
5434 save_input_from_pipe = input_from_pipe;
5435 save_suffix_subst = suffix_subst;
5437 /* Create a new spec processing context, and build the function
5441 if (do_spec_2 (args) < 0)
5442 fatal ("error in args to spec function '%s'", func);
5444 /* argbuf_index is an index for the next argument to be inserted, and
5445 so contains the count of the args already inserted. */
5447 funcval = (*sf->func) (argbuf_index, argbuf);
5449 /* Pop the spec processing context. */
5450 argbuf_index = save_argbuf_index;
5451 argbuf_length = save_argbuf_length;
5453 argbuf = save_argbuf;
5455 arg_going = save_arg_going;
5456 delete_this_arg = save_delete_this_arg;
5457 this_is_output_file = save_this_is_output_file;
5458 this_is_library_file = save_this_is_library_file;
5459 input_from_pipe = save_input_from_pipe;
5460 suffix_subst = save_suffix_subst;
5465 /* Handle a spec function call of the form:
5469 ARGS is processed as a spec in a separate context and split into an
5470 argument vector in the normal fashion. The function returns a string
5471 containing a spec which we then process in the caller's context, or
5472 NULL if no processing is required. */
5475 handle_spec_function (const char *p)
5478 const char *endp, *funcval;
5481 processing_spec_function++;
5483 /* Get the function name. */
5484 for (endp = p; *endp != '\0'; endp++)
5486 if (*endp == '(') /* ) */
5488 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5489 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
5490 fatal ("malformed spec function name");
5492 if (*endp != '(') /* ) */
5493 fatal ("no arguments for spec function");
5494 func = save_string (p, endp - p);
5497 /* Get the arguments. */
5498 for (count = 0; *endp != '\0'; endp++)
5507 else if (*endp == '(') /* ) */
5512 fatal ("malformed spec function arguments");
5513 args = save_string (p, endp - p);
5516 /* p now points to just past the end of the spec function expression. */
5518 funcval = eval_spec_function (func, args);
5519 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
5525 processing_spec_function--;
5530 /* Inline subroutine of handle_braces. Returns true if the current
5531 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5533 input_suffix_matches (const char *atom, const char *end_atom)
5535 return (input_suffix
5536 && !strncmp (input_suffix, atom, end_atom - atom)
5537 && input_suffix[end_atom - atom] == '\0');
5540 /* Subroutine of handle_braces. Returns true if the current
5541 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5543 input_spec_matches (const char *atom, const char *end_atom)
5545 return (input_file_compiler
5546 && input_file_compiler->suffix
5547 && input_file_compiler->suffix[0] != '\0'
5548 && !strncmp (input_file_compiler->suffix + 1, atom,
5550 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
5553 /* Subroutine of handle_braces. Returns true if a switch
5554 matching the atom bracketed by ATOM and END_ATOM appeared on the
5557 switch_matches (const char *atom, const char *end_atom, int starred)
5560 int len = end_atom - atom;
5561 int plen = starred ? len : -1;
5563 for (i = 0; i < n_switches; i++)
5564 if (!strncmp (switches[i].part1, atom, len)
5565 && (starred || switches[i].part1[len] == '\0')
5566 && check_live_switch (i, plen))
5572 /* Inline subroutine of handle_braces. Mark all of the switches which
5573 match ATOM (extends to END_ATOM; STARRED indicates whether there
5574 was a star after the atom) for later processing. */
5576 mark_matching_switches (const char *atom, const char *end_atom, int starred)
5579 int len = end_atom - atom;
5580 int plen = starred ? len : -1;
5582 for (i = 0; i < n_switches; i++)
5583 if (!strncmp (switches[i].part1, atom, len)
5584 && (starred || switches[i].part1[len] == '\0')
5585 && check_live_switch (i, plen))
5586 switches[i].ordering = 1;
5589 /* Inline subroutine of handle_braces. Process all the currently
5590 marked switches through give_switch, and clear the marks. */
5592 process_marked_switches (void)
5596 for (i = 0; i < n_switches; i++)
5597 if (switches[i].ordering == 1)
5599 switches[i].ordering = 0;
5604 /* Handle a %{ ... } construct. P points just inside the leading {.
5605 Returns a pointer one past the end of the brace block, or 0
5606 if we call do_spec_1 and that returns -1. */
5609 handle_braces (const char *p)
5611 const char *atom, *end_atom;
5612 const char *d_atom = NULL, *d_end_atom = NULL;
5613 const char *orig = p;
5621 bool a_must_be_last = false;
5622 bool ordered_set = false;
5623 bool disjunct_set = false;
5624 bool disj_matched = false;
5625 bool disj_starred = true;
5626 bool n_way_choice = false;
5627 bool n_way_matched = false;
5629 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5636 /* Scan one "atom" (S in the description above of %{}, possibly
5637 with '!', '.', '@', ',', or '*' modifiers). */
5639 a_is_suffix = false;
5640 a_is_starred = false;
5641 a_is_negated = false;
5642 a_is_spectype = false;
5646 p++, a_is_negated = true;
5650 p++, a_is_suffix = true;
5652 p++, a_is_spectype = true;
5655 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
5656 || *p == ',' || *p == '.' || *p == '@')
5661 p++, a_is_starred = 1;
5667 /* Substitute the switch(es) indicated by the current atom. */
5669 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
5670 || a_is_spectype || atom == end_atom)
5673 mark_matching_switches (atom, end_atom, a_is_starred);
5676 process_marked_switches ();
5680 /* Substitute some text if the current atom appears as a switch
5682 disjunct_set = true;
5686 if (atom == end_atom)
5688 if (!n_way_choice || disj_matched || *p == '|'
5689 || a_is_negated || a_is_suffix || a_is_spectype
5693 /* An empty term may appear as the last choice of an
5694 N-way choice set; it means "otherwise". */
5695 a_must_be_last = true;
5696 disj_matched = !n_way_matched;
5697 disj_starred = false;
5701 if ((a_is_suffix || a_is_spectype) && a_is_starred)
5705 disj_starred = false;
5707 /* Don't bother testing this atom if we already have a
5709 if (!disj_matched && !n_way_matched)
5712 a_matched = input_suffix_matches (atom, end_atom);
5713 else if (a_is_spectype)
5714 a_matched = input_spec_matches (atom, end_atom);
5716 a_matched = switch_matches (atom, end_atom, a_is_starred);
5718 if (a_matched != a_is_negated)
5720 disj_matched = true;
5722 d_end_atom = end_atom;
5729 /* Found the body, that is, the text to substitute if the
5730 current disjunction matches. */
5731 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
5732 disj_matched && !n_way_matched);
5736 /* If we have an N-way choice, reset state for the next
5740 n_way_choice = true;
5741 n_way_matched |= disj_matched;
5742 disj_matched = false;
5743 disj_starred = true;
5744 d_atom = d_end_atom = NULL;
5753 while (*p++ != '}');
5758 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
5763 /* Subroutine of handle_braces. Scan and process a brace substitution body
5764 (X in the description of %{} syntax). P points one past the colon;
5765 ATOM and END_ATOM bracket the first atom which was found to be true
5766 (present) in the current disjunction; STARRED indicates whether all
5767 the atoms in the current disjunction were starred (for syntax validation);
5768 MATCHED indicates whether the disjunction matched or not, and therefore
5769 whether or not the body is to be processed through do_spec_1 or just
5770 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5774 process_brace_body (const char *p, const char *atom, const char *end_atom,
5775 int starred, int matched)
5777 const char *body, *end_body;
5778 unsigned int nesting_level;
5779 bool have_subst = false;
5781 /* Locate the closing } or ;, honoring nested braces.
5782 Trim trailing whitespace. */
5791 if (!--nesting_level)
5794 else if (*p == ';' && nesting_level == 1)
5796 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
5798 else if (*p == '\0')
5804 while (end_body[-1] == ' ' || end_body[-1] == '\t')
5807 if (have_subst && !starred)
5812 /* Copy the substitution body to permanent storage and execute it.
5813 If have_subst is false, this is a simple matter of running the
5814 body through do_spec_1... */
5815 char *string = save_string (body, end_body - body);
5818 if (do_spec_1 (string, 0, NULL) < 0)
5823 /* ... but if have_subst is true, we have to process the
5824 body once for each matching switch, with %* set to the
5825 variant part of the switch. */
5826 unsigned int hard_match_len = end_atom - atom;
5829 for (i = 0; i < n_switches; i++)
5830 if (!strncmp (switches[i].part1, atom, hard_match_len)
5831 && check_live_switch (i, hard_match_len))
5833 if (do_spec_1 (string, 0,
5834 &switches[i].part1[hard_match_len]) < 0)
5836 /* Pass any arguments this switch has. */
5838 suffix_subst = NULL;
5846 fatal ("braced spec body '%s' is invalid", body);
5849 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5850 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5851 spec, or -1 if either exact match or %* is used.
5853 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5854 whose value does not begin with "no-" is obsoleted by the same value
5855 with the "no-", similarly for a switch with the "no-" prefix. */
5858 check_live_switch (int switchnum, int prefix_length)
5860 const char *name = switches[switchnum].part1;
5863 /* In the common case of {<at-most-one-letter>*}, a negating
5864 switch would always match, so ignore that case. We will just
5865 send the conflicting switches to the compiler phase. */
5866 if (prefix_length >= 0 && prefix_length <= 1)
5869 /* If we already processed this switch and determined if it was
5870 live or not, return our past determination. */
5871 if (switches[switchnum].live_cond != 0)
5872 return switches[switchnum].live_cond > 0;
5874 /* Now search for duplicate in a manner that depends on the name. */
5878 for (i = switchnum + 1; i < n_switches; i++)
5879 if (switches[i].part1[0] == 'O')
5881 switches[switchnum].validated = 1;
5882 switches[switchnum].live_cond = SWITCH_FALSE;
5887 case 'W': case 'f': case 'm':
5888 if (! strncmp (name + 1, "no-", 3))
5890 /* We have Xno-YYY, search for XYYY. */
5891 for (i = switchnum + 1; i < n_switches; i++)
5892 if (switches[i].part1[0] == name[0]
5893 && ! strcmp (&switches[i].part1[1], &name[4]))
5895 switches[switchnum].validated = 1;
5896 switches[switchnum].live_cond = SWITCH_FALSE;
5902 /* We have XYYY, search for Xno-YYY. */
5903 for (i = switchnum + 1; i < n_switches; i++)
5904 if (switches[i].part1[0] == name[0]
5905 && switches[i].part1[1] == 'n'
5906 && switches[i].part1[2] == 'o'
5907 && switches[i].part1[3] == '-'
5908 && !strcmp (&switches[i].part1[4], &name[1]))
5910 switches[switchnum].validated = 1;
5911 switches[switchnum].live_cond = SWITCH_FALSE;
5918 /* Otherwise the switch is live. */
5919 switches[switchnum].live_cond = SWITCH_LIVE;
5923 /* Pass a switch to the current accumulating command
5924 in the same form that we received it.
5925 SWITCHNUM identifies the switch; it is an index into
5926 the vector of switches gcc received, which is `switches'.
5927 This cannot fail since it never finishes a command line.
5929 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5932 give_switch (int switchnum, int omit_first_word)
5934 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5937 if (!omit_first_word)
5939 do_spec_1 ("-", 0, NULL);
5940 do_spec_1 (switches[switchnum].part1, 1, NULL);
5943 if (switches[switchnum].args != 0)
5946 for (p = switches[switchnum].args; *p; p++)
5948 const char *arg = *p;
5950 do_spec_1 (" ", 0, NULL);
5953 unsigned length = strlen (arg);
5956 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5957 if (arg[length] == '.')
5959 ((char *)arg)[length] = 0;
5963 do_spec_1 (arg, 1, NULL);
5965 ((char *)arg)[length] = '.';
5966 do_spec_1 (suffix_subst, 1, NULL);
5969 do_spec_1 (arg, 1, NULL);
5973 do_spec_1 (" ", 0, NULL);
5974 switches[switchnum].validated = 1;
5977 /* Search for a file named NAME trying various prefixes including the
5978 user's -B prefix and some standard ones.
5979 Return the absolute file name found. If nothing is found, return NAME. */
5982 find_file (const char *name)
5984 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
5985 return newname ? newname : name;
5988 /* Determine whether a directory exists. If LINKER, return 0 for
5989 certain fixed names not needed by the linker. */
5992 is_directory (const char *path1, bool linker)
5999 /* Ensure the string ends with "/.". The resulting path will be a
6000 directory even if the given path is a symbolic link. */
6001 len1 = strlen (path1);
6002 path = alloca (3 + len1);
6003 memcpy (path, path1, len1);
6005 if (!IS_DIR_SEPARATOR (cp[-1]))
6006 *cp++ = DIR_SEPARATOR;
6010 /* Exclude directories that the linker is known to search. */
6012 && IS_DIR_SEPARATOR (path[0])
6014 && strncmp (path + 1, "lib", 3) == 0)
6016 && strncmp (path + 1, "usr", 3) == 0
6017 && IS_DIR_SEPARATOR (path[4])
6018 && strncmp (path + 5, "lib", 3) == 0)))
6021 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6024 /* Set up the various global variables to indicate that we're processing
6025 the input file named FILENAME. */
6028 set_input (const char *filename)
6032 input_filename = filename;
6033 input_filename_length = strlen (input_filename);
6035 input_basename = input_filename;
6036 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6037 /* Skip drive name so 'x:foo' is handled properly. */
6038 if (input_basename[1] == ':')
6039 input_basename += 2;
6041 for (p = input_basename; *p; p++)
6042 if (IS_DIR_SEPARATOR (*p))
6043 input_basename = p + 1;
6045 /* Find a suffix starting with the last period,
6046 and set basename_length to exclude that suffix. */
6047 basename_length = strlen (input_basename);
6048 suffixed_basename_length = basename_length;
6049 p = input_basename + basename_length;
6050 while (p != input_basename && *p != '.')
6052 if (*p == '.' && p != input_basename)
6054 basename_length = p - input_basename;
6055 input_suffix = p + 1;
6060 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6061 we will need to do a stat on the input_filename. The
6062 INPUT_STAT_SET signals that the stat is needed. */
6066 /* On fatal signals, delete all the temporary files. */
6069 fatal_error (int signum)
6071 signal (signum, SIG_DFL);
6072 delete_failure_queue ();
6073 delete_temp_files ();
6074 /* Get the same signal again, this time not handled,
6075 so its normal effect occurs. */
6076 kill (getpid (), signum);
6079 extern int main (int, char **);
6082 main (int argc, char **argv)
6086 int linker_was_run = 0;
6087 int lang_n_infiles = 0;
6088 int num_linker_inputs = 0;
6089 char *explicit_link_files;
6092 struct user_specs *uptr;
6094 p = argv[0] + strlen (argv[0]);
6095 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6099 xmalloc_set_program_name (programname);
6101 expandargv (&argc, &argv);
6103 prune_options (&argc, &argv);
6105 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6106 /* Perform host dependent initialization when needed. */
6107 GCC_DRIVER_HOST_INITIALIZATION;
6110 /* Unlock the stdio streams. */
6111 unlock_std_streams ();
6113 gcc_init_libintl ();
6115 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6116 signal (SIGINT, fatal_error);
6118 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6119 signal (SIGHUP, fatal_error);
6121 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6122 signal (SIGTERM, fatal_error);
6124 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6125 signal (SIGPIPE, fatal_error);
6128 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6129 receive the signal. A different setting is inheritable */
6130 signal (SIGCHLD, SIG_DFL);
6133 /* Allocate the argument vector. */
6136 obstack_init (&obstack);
6138 /* Build multilib_select, et. al from the separate lines that make up each
6139 multilib selection. */
6141 const char *const *q = multilib_raw;
6144 obstack_init (&multilib_obstack);
6145 while ((p = *q++) != (char *) 0)
6146 obstack_grow (&multilib_obstack, p, strlen (p));
6148 obstack_1grow (&multilib_obstack, 0);
6149 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6151 q = multilib_matches_raw;
6152 while ((p = *q++) != (char *) 0)
6153 obstack_grow (&multilib_obstack, p, strlen (p));
6155 obstack_1grow (&multilib_obstack, 0);
6156 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6158 q = multilib_exclusions_raw;
6159 while ((p = *q++) != (char *) 0)
6160 obstack_grow (&multilib_obstack, p, strlen (p));
6162 obstack_1grow (&multilib_obstack, 0);
6163 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6166 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6169 obstack_1grow (&multilib_obstack, ' ');
6170 obstack_grow (&multilib_obstack,
6171 multilib_defaults_raw[i],
6172 strlen (multilib_defaults_raw[i]));
6176 obstack_1grow (&multilib_obstack, 0);
6177 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6180 /* Set up to remember the pathname of gcc and any options
6181 needed for collect. We use argv[0] instead of programname because
6182 we need the complete pathname. */
6183 obstack_init (&collect_obstack);
6184 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6185 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
6186 putenv (XOBFINISH (&collect_obstack, char *));
6188 #ifdef INIT_ENVIRONMENT
6189 /* Set up any other necessary machine specific environment variables. */
6190 putenv (INIT_ENVIRONMENT);
6193 /* Make a table of what switches there are (switches, n_switches).
6194 Make a table of specified input files (infiles, n_infiles).
6195 Decode switches that are handled locally. */
6197 process_command (argc, (const char **) argv);
6199 /* Initialize the vector of specs to just the default.
6200 This means one element containing 0s, as a terminator. */
6202 compilers = xmalloc (sizeof default_compilers);
6203 memcpy (compilers, default_compilers, sizeof default_compilers);
6204 n_compilers = n_default_compilers;
6206 /* Read specs from a file if there is one. */
6208 machine_suffix = concat (spec_machine, dir_separator_str,
6209 spec_version, dir_separator_str, NULL);
6210 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6212 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6213 /* Read the specs file unless it is a default one. */
6214 if (specs_file != 0 && strcmp (specs_file, "specs"))
6215 read_specs (specs_file, TRUE);
6219 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6220 for any override of as, ld and libraries. */
6221 specs_file = alloca (strlen (standard_exec_prefix)
6222 + strlen (just_machine_suffix) + sizeof ("specs"));
6224 strcpy (specs_file, standard_exec_prefix);
6225 strcat (specs_file, just_machine_suffix);
6226 strcat (specs_file, "specs");
6227 if (access (specs_file, R_OK) == 0)
6228 read_specs (specs_file, TRUE);
6230 /* Process any configure-time defaults specified for the command line
6231 options, via OPTION_DEFAULT_SPECS. */
6232 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6233 do_option_spec (option_default_specs[i].name,
6234 option_default_specs[i].spec);
6236 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6237 of the command line. */
6239 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6240 do_self_spec (driver_self_specs[i]);
6242 /* If not cross-compiling, look for executables in the standard
6244 if (*cross_compile == '0')
6246 if (*md_exec_prefix)
6248 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6249 PREFIX_PRIORITY_LAST, 0, 0);
6253 /* Process sysroot_suffix_spec. */
6254 if (*sysroot_suffix_spec != 0
6255 && do_spec_2 (sysroot_suffix_spec) == 0)
6257 if (argbuf_index > 1)
6258 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6259 else if (argbuf_index == 1)
6260 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6263 #ifdef HAVE_LD_SYSROOT
6264 /* Pass the --sysroot option to the linker, if it supports that. If
6265 there is a sysroot_suffix_spec, it has already been processed by
6266 this point, so target_system_root really is the system root we
6268 if (target_system_root)
6270 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6271 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6272 set_spec ("link", XOBFINISH (&obstack, const char *));
6276 /* Process sysroot_hdrs_suffix_spec. */
6277 if (*sysroot_hdrs_suffix_spec != 0
6278 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6280 if (argbuf_index > 1)
6281 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6282 else if (argbuf_index == 1)
6283 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6286 /* Look for startfiles in the standard places. */
6287 if (*startfile_prefix_spec != 0
6288 && do_spec_2 (startfile_prefix_spec) == 0
6289 && do_spec_1 (" ", 0, NULL) == 0)
6292 for (ndx = 0; ndx < argbuf_index; ndx++)
6293 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
6294 PREFIX_PRIORITY_LAST, 0, 1);
6296 /* We should eventually get rid of all these and stick to
6297 startfile_prefix_spec exclusively. */
6298 else if (*cross_compile == '0' || target_system_root)
6300 if (*md_startfile_prefix)
6301 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
6302 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6304 if (*md_startfile_prefix_1)
6305 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
6306 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6308 /* If standard_startfile_prefix is relative, base it on
6309 standard_exec_prefix. This lets us move the installed tree
6310 as a unit. If GCC_EXEC_PREFIX is defined, base
6311 standard_startfile_prefix on that as well.
6313 If the prefix is relative, only search it for native compilers;
6314 otherwise we will search a directory containing host libraries. */
6315 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
6316 add_sysrooted_prefix (&startfile_prefixes,
6317 standard_startfile_prefix, "BINUTILS",
6318 PREFIX_PRIORITY_LAST, 0, 1);
6319 else if (*cross_compile == '0')
6321 add_prefix (&startfile_prefixes,
6322 concat (gcc_exec_prefix
6323 ? gcc_exec_prefix : standard_exec_prefix,
6325 standard_startfile_prefix, NULL),
6326 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6329 /* Sysrooted prefixes are relocated because target_system_root is
6330 also relocated by gcc_exec_prefix. */
6331 if (*standard_startfile_prefix_1)
6332 add_sysrooted_prefix (&startfile_prefixes,
6333 standard_startfile_prefix_1, "BINUTILS",
6334 PREFIX_PRIORITY_LAST, 0, 1);
6335 if (*standard_startfile_prefix_2)
6336 add_sysrooted_prefix (&startfile_prefixes,
6337 standard_startfile_prefix_2, "BINUTILS",
6338 PREFIX_PRIORITY_LAST, 0, 1);
6341 /* Process any user specified specs in the order given on the command
6343 for (uptr = user_specs_head; uptr; uptr = uptr->next)
6345 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
6347 read_specs (filename ? filename : uptr->filename, FALSE);
6350 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6351 if (gcc_exec_prefix)
6352 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
6353 spec_version, dir_separator_str, NULL);
6355 /* Now we have the specs.
6356 Set the `valid' bits for switches that match anything in any spec. */
6358 validate_all_switches ();
6360 /* Now that we have the switches and the specs, set
6361 the subdirectory based on the options. */
6362 set_multilib_dir ();
6364 /* Warn about any switches that no pass was interested in. */
6366 for (i = 0; (int) i < n_switches; i++)
6367 if (! switches[i].validated)
6368 error ("unrecognized option '-%s'", switches[i].part1);
6370 /* Obey some of the options. */
6372 if (print_search_dirs)
6374 printf (_("install: %s%s\n"),
6375 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
6376 gcc_exec_prefix ? "" : machine_suffix);
6377 printf (_("programs: %s\n"),
6378 build_search_list (&exec_prefixes, "", false, false));
6379 printf (_("libraries: %s\n"),
6380 build_search_list (&startfile_prefixes, "", false, true));
6384 if (print_file_name)
6386 printf ("%s\n", find_file (print_file_name));
6390 if (print_prog_name)
6392 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
6393 printf ("%s\n", (newname ? newname : print_prog_name));
6397 if (print_multi_lib)
6399 print_multilib_info ();
6403 if (print_multi_directory)
6405 if (multilib_dir == NULL)
6408 printf ("%s\n", multilib_dir);
6412 if (print_multi_os_directory)
6414 if (multilib_os_dir == NULL)
6417 printf ("%s\n", multilib_os_dir);
6421 if (print_sysroot_headers_suffix)
6423 if (*sysroot_hdrs_suffix_spec)
6425 printf("%s\n", (target_sysroot_hdrs_suffix
6426 ? target_sysroot_hdrs_suffix
6431 /* The error status indicates that only one set of fixed
6432 headers should be built. */
6433 fatal ("not configured with sysroot headers suffix");
6436 if (print_help_list)
6442 printf (_("\nFor bug reporting instructions, please see:\n"));
6443 printf ("%s.\n", bug_report_url);
6448 /* We do not exit here. Instead we have created a fake input file
6449 called 'help-dummy' which needs to be compiled, and we pass this
6450 on the various sub-processes, along with the --help switch. */
6458 notice ("Target: %s\n", spec_machine);
6459 notice ("Configured with: %s\n", configuration_arguments);
6461 #ifdef THREAD_MODEL_SPEC
6462 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6463 but there's no point in doing all this processing just to get
6464 thread_model back. */
6465 obstack_init (&obstack);
6466 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
6467 obstack_1grow (&obstack, '\0');
6468 thrmod = XOBFINISH (&obstack, const char *);
6470 thrmod = thread_model;
6473 notice ("Thread model: %s\n", thrmod);
6475 /* compiler_version is truncated at the first space when initialized
6476 from version string, so truncate version_string at the first space
6477 before comparing. */
6478 for (n = 0; version_string[n]; n++)
6479 if (version_string[n] == ' ')
6482 if (! strncmp (version_string, compiler_version, n)
6483 && compiler_version[n] == 0)
6484 notice ("gcc version %s\n", version_string);
6486 notice ("gcc driver version %s executing gcc version %s\n",
6487 version_string, compiler_version);
6493 if (n_infiles == added_libraries)
6494 fatal ("no input files");
6496 /* Make a place to record the compiler output file names
6497 that correspond to the input files. */
6500 i += lang_specific_extra_outfiles;
6501 outfiles = XCNEWVEC (const char *, i);
6503 /* Record which files were specified explicitly as link input. */
6505 explicit_link_files = XCNEWVEC (char, n_infiles);
6508 combine_inputs = true;
6510 combine_inputs = false;
6512 for (i = 0; (int) i < n_infiles; i++)
6514 const char *name = infiles[i].name;
6515 struct compiler *compiler = lookup_compiler (name,
6517 infiles[i].language);
6519 if (compiler && !(compiler->combinable))
6520 combine_inputs = false;
6522 if (lang_n_infiles > 0 && compiler != input_file_compiler
6523 && infiles[i].language && infiles[i].language[0] != '*')
6524 infiles[i].incompiler = compiler;
6528 input_file_compiler = compiler;
6529 infiles[i].incompiler = compiler;
6533 /* Since there is no compiler for this input file, assume it is a
6535 explicit_link_files[i] = 1;
6536 infiles[i].incompiler = NULL;
6538 infiles[i].compiled = false;
6539 infiles[i].preprocessed = false;
6542 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
6543 fatal ("cannot specify -o with -c or -S with multiple files");
6545 if (combine_flag && save_temps_flag)
6547 bool save_combine_inputs = combine_inputs;
6548 /* Must do a separate pre-processing pass for C & Objective-C files, to
6549 obtain individual .i files. */
6551 combine_inputs = false;
6552 for (i = 0; (int) i < n_infiles; i++)
6554 int this_file_error = 0;
6556 input_file_number = i;
6557 set_input (infiles[i].name);
6558 if (infiles[i].incompiler
6559 && (infiles[i].incompiler)->needs_preprocessing)
6560 input_file_compiler = infiles[i].incompiler;
6564 if (input_file_compiler)
6566 if (input_file_compiler->spec[0] == '#')
6568 error ("%s: %s compiler not installed on this system",
6569 input_filename, &input_file_compiler->spec[1]);
6570 this_file_error = 1;
6574 value = do_spec (input_file_compiler->spec);
6575 infiles[i].preprocessed = true;
6576 if (!have_o_argbuf_index)
6577 fatal ("spec '%s' is invalid", input_file_compiler->spec);
6578 infiles[i].name = argbuf[have_o_argbuf_index];
6579 infiles[i].incompiler
6580 = lookup_compiler (infiles[i].name,
6581 strlen (infiles[i].name),
6582 infiles[i].language);
6585 this_file_error = 1;
6589 if (this_file_error)
6591 delete_failure_queue ();
6595 clear_failure_queue ();
6597 combine_inputs = save_combine_inputs;
6600 for (i = 0; (int) i < n_infiles; i++)
6602 int this_file_error = 0;
6604 /* Tell do_spec what to substitute for %i. */
6606 input_file_number = i;
6607 set_input (infiles[i].name);
6609 if (infiles[i].compiled)
6612 /* Use the same thing in %o, unless cp->spec says otherwise. */
6614 outfiles[i] = input_filename;
6616 /* Figure out which compiler from the file's suffix. */
6618 if (! combine_inputs)
6620 = lookup_compiler (infiles[i].name, input_filename_length,
6621 infiles[i].language);
6623 input_file_compiler = infiles[i].incompiler;
6625 if (input_file_compiler)
6627 /* Ok, we found an applicable compiler. Run its spec. */
6629 if (input_file_compiler->spec[0] == '#')
6631 error ("%s: %s compiler not installed on this system",
6632 input_filename, &input_file_compiler->spec[1]);
6633 this_file_error = 1;
6637 value = do_spec (input_file_compiler->spec);
6638 infiles[i].compiled = true;
6640 this_file_error = 1;
6644 /* If this file's name does not contain a recognized suffix,
6645 record it as explicit linker input. */
6648 explicit_link_files[i] = 1;
6650 /* Clear the delete-on-failure queue, deleting the files in it
6651 if this compilation failed. */
6653 if (this_file_error)
6655 delete_failure_queue ();
6658 /* If this compilation succeeded, don't delete those files later. */
6659 clear_failure_queue ();
6662 /* Reset the input file name to the first compile/object file name, for use
6663 with %b in LINK_SPEC. We use the first input file that we can find
6664 a compiler to compile it instead of using infiles.language since for
6665 languages other than C we use aliases that we then lookup later. */
6670 for (i = 0; i < n_infiles ; i++)
6671 if (infiles[i].language && infiles[i].language[0] != '*')
6673 set_input (infiles[i].name);
6678 if (error_count == 0)
6680 /* Make sure INPUT_FILE_NUMBER points to first available open
6682 input_file_number = n_infiles;
6683 if (lang_specific_pre_link ())
6687 /* Determine if there are any linker input files. */
6688 num_linker_inputs = 0;
6689 for (i = 0; (int) i < n_infiles; i++)
6690 if (explicit_link_files[i] || outfiles[i] != NULL)
6691 num_linker_inputs++;
6693 /* Run ld to link all the compiler output files. */
6695 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
6697 int tmp = execution_count;
6699 /* We'll use ld if we can't find collect2. */
6700 if (! strcmp (linker_name_spec, "collect2"))
6702 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
6704 linker_name_spec = "ld";
6706 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6708 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
6709 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
6711 value = do_spec (link_command_spec);
6714 linker_was_run = (tmp != execution_count);
6717 /* If options said don't run linker,
6718 complain about input files to be given to the linker. */
6720 if (! linker_was_run && error_count == 0)
6721 for (i = 0; (int) i < n_infiles; i++)
6722 if (explicit_link_files[i])
6723 error ("%s: linker input file unused because linking not done",
6726 /* Delete some or all of the temporary files we made. */
6729 delete_failure_queue ();
6730 delete_temp_files ();
6732 if (print_help_list)
6734 printf (("\nFor bug reporting instructions, please see:\n"));
6735 printf ("%s\n", bug_report_url);
6738 return (signal_count != 0 ? 2
6739 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6743 /* Find the proper compilation spec for the file name NAME,
6744 whose length is LENGTH. LANGUAGE is the specified language,
6745 or 0 if this file is to be passed to the linker. */
6747 static struct compiler *
6748 lookup_compiler (const char *name, size_t length, const char *language)
6750 struct compiler *cp;
6752 /* If this was specified by the user to be a linker input, indicate that. */
6753 if (language != 0 && language[0] == '*')
6756 /* Otherwise, look for the language, if one is spec'd. */
6759 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6760 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6763 error ("language %s not recognized", language);
6767 /* Look for a suffix. */
6768 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6770 if (/* The suffix `-' matches only the file name `-'. */
6771 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6772 || (strlen (cp->suffix) < length
6773 /* See if the suffix matches the end of NAME. */
6774 && !strcmp (cp->suffix,
6775 name + length - strlen (cp->suffix))
6780 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6781 /* Look again, but case-insensitively this time. */
6783 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6785 if (/* The suffix `-' matches only the file name `-'. */
6786 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6787 || (strlen (cp->suffix) < length
6788 /* See if the suffix matches the end of NAME. */
6789 && ((!strcmp (cp->suffix,
6790 name + length - strlen (cp->suffix))
6791 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6792 && !strcasecmp (cp->suffix,
6793 name + length - strlen (cp->suffix)))
6799 if (cp >= compilers)
6801 if (cp->spec[0] != '@')
6802 /* A non-alias entry: return it. */
6805 /* An alias entry maps a suffix to a language.
6806 Search for the language; pass 0 for NAME and LENGTH
6807 to avoid infinite recursion if language not found. */
6808 return lookup_compiler (NULL, 0, cp->spec + 1);
6814 save_string (const char *s, int len)
6816 char *result = XNEWVEC (char, len + 1);
6818 memcpy (result, s, len);
6824 pfatal_with_name (const char *name)
6826 perror_with_name (name);
6827 delete_temp_files ();
6832 perror_with_name (const char *name)
6834 error ("%s: %s", name, xstrerror (errno));
6837 /* Output an error message and exit. */
6840 fancy_abort (const char *file, int line, const char *func)
6842 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
6845 /* Output an error message and exit. */
6848 fatal_ice (const char *cmsgid, ...)
6852 va_start (ap, cmsgid);
6854 fprintf (stderr, "%s: ", programname);
6855 vfprintf (stderr, _(cmsgid), ap);
6857 fprintf (stderr, "\n");
6858 delete_temp_files ();
6859 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
6863 fatal (const char *cmsgid, ...)
6867 va_start (ap, cmsgid);
6869 fprintf (stderr, "%s: ", programname);
6870 vfprintf (stderr, _(cmsgid), ap);
6872 fprintf (stderr, "\n");
6873 delete_temp_files ();
6877 /* The argument is actually c-format, not gcc-internal-format,
6878 but because functions with identical names are used through
6879 the rest of the compiler with gcc-internal-format, we just
6880 need to hope all users of these functions use the common
6881 subset between c-format and gcc-internal-format. */
6884 error (const char *gmsgid, ...)
6888 va_start (ap, gmsgid);
6889 fprintf (stderr, "%s: ", programname);
6890 vfprintf (stderr, _(gmsgid), ap);
6893 fprintf (stderr, "\n");
6897 notice (const char *cmsgid, ...)
6901 va_start (ap, cmsgid);
6902 vfprintf (stderr, _(cmsgid), ap);
6907 validate_switches_from_spec (const char *spec)
6909 const char *p = spec;
6912 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
6913 /* We have a switch spec. */
6914 p = validate_switches (p + 1);
6918 validate_all_switches (void)
6920 struct compiler *comp;
6921 struct spec_list *spec;
6923 for (comp = compilers; comp->spec; comp++)
6924 validate_switches_from_spec (comp->spec);
6926 /* Look through the linked list of specs read from the specs file. */
6927 for (spec = specs; spec; spec = spec->next)
6928 validate_switches_from_spec (*spec->ptr_spec);
6930 validate_switches_from_spec (link_command_spec);
6933 /* Look at the switch-name that comes after START
6934 and mark as valid all supplied switches that match it. */
6937 validate_switches (const char *start)
6939 const char *p = start;
6943 bool suffix = false;
6944 bool starred = false;
6946 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6955 if (*p == '.' || *p == ',')
6959 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
6960 || *p == ',' || *p == '.' || *p == '@')
6965 starred = true, p++;
6971 /* Mark all matching switches as valid. */
6972 for (i = 0; i < n_switches; i++)
6973 if (!strncmp (switches[i].part1, atom, len)
6974 && (starred || switches[i].part1[len] == 0))
6975 switches[i].validated = 1;
6979 if (*p && (p[-1] == '|' || p[-1] == '&'))
6982 if (*p && p[-1] == ':')
6984 while (*p && *p != ';' && *p != '}')
6989 if (*p == '{' || *p == '<')
6990 p = validate_switches (p+1);
6991 else if (p[0] == 'W' && p[1] == '{')
6992 p = validate_switches (p+2);
6999 if (*p && p[-1] == ';')
7013 static struct mdswitchstr *mdswitches;
7014 static int n_mdswitches;
7016 /* Check whether a particular argument was used. The first time we
7017 canonicalize the switches to keep only the ones we care about. */
7020 used_arg (const char *p, int len)
7025 const char *replace;
7030 static struct mswitchstr *mswitches;
7031 static int n_mswitches;
7036 struct mswitchstr *matches;
7040 /* Break multilib_matches into the component strings of string
7041 and replacement string. */
7042 for (q = multilib_matches; *q != '\0'; q++)
7046 matches = alloca ((sizeof (struct mswitchstr)) * cnt);
7048 q = multilib_matches;
7057 fatal ("multilib spec '%s' is invalid", multilib_matches);
7061 matches[i].len = q - matches[i].str;
7063 matches[i].replace = ++q;
7064 while (*q != ';' && *q != '\0')
7067 goto invalid_matches;
7070 matches[i].rep_len = q - matches[i].replace;
7076 /* Now build a list of the replacement string for switches that we care
7077 about. Make sure we allocate at least one entry. This prevents
7078 xmalloc from calling fatal, and prevents us from re-executing this
7081 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7082 for (i = 0; i < n_switches; i++)
7083 if (switches[i].live_cond != SWITCH_IGNORE)
7085 int xlen = strlen (switches[i].part1);
7086 for (j = 0; j < cnt; j++)
7087 if (xlen == matches[j].len
7088 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7090 mswitches[n_mswitches].str = matches[j].replace;
7091 mswitches[n_mswitches].len = matches[j].rep_len;
7092 mswitches[n_mswitches].replace = (char *) 0;
7093 mswitches[n_mswitches].rep_len = 0;
7099 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7100 on the command line nor any options mutually incompatible with
7102 for (i = 0; i < n_mdswitches; i++)
7106 for (q = multilib_options; *q != '\0'; q++)
7112 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7113 || strchr (" /", q[mdswitches[i].len]) == NULL)
7115 while (*q != ' ' && *q != '/' && *q != '\0')
7122 if (*q != ' ' && *q != '\0')
7124 while (*r != ' ' && *r != '\0')
7127 while (*q != ' ' && *q != '/' && *q != '\0')
7130 if (used_arg (r, q - r))
7135 mswitches[n_mswitches].str = mdswitches[i].str;
7136 mswitches[n_mswitches].len = mdswitches[i].len;
7137 mswitches[n_mswitches].replace = (char *) 0;
7138 mswitches[n_mswitches].rep_len = 0;
7151 for (i = 0; i < n_mswitches; i++)
7152 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
7159 default_arg (const char *p, int len)
7163 for (i = 0; i < n_mdswitches; i++)
7164 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
7170 /* Work out the subdirectory to use based on the options. The format of
7171 multilib_select is a list of elements. Each element is a subdirectory
7172 name followed by a list of options followed by a semicolon. The format
7173 of multilib_exclusions is the same, but without the preceding
7174 directory. First gcc will check the exclusions, if none of the options
7175 beginning with an exclamation point are present, and all of the other
7176 options are present, then we will ignore this completely. Passing
7177 that, gcc will consider each multilib_select in turn using the same
7178 rules for matching the options. If a match is found, that subdirectory
7182 set_multilib_dir (void)
7185 unsigned int this_path_len;
7186 const char *this_path, *this_arg;
7187 const char *start, *end;
7189 int ok, ndfltok, first;
7192 start = multilib_defaults;
7193 while (*start == ' ' || *start == '\t')
7195 while (*start != '\0')
7198 while (*start != ' ' && *start != '\t' && *start != '\0')
7200 while (*start == ' ' || *start == '\t')
7208 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
7209 for (start = multilib_defaults; *start != '\0'; start = end + 1)
7211 while (*start == ' ' || *start == '\t')
7217 for (end = start + 1;
7218 *end != ' ' && *end != '\t' && *end != '\0'; end++)
7221 obstack_grow (&multilib_obstack, start, end - start);
7222 obstack_1grow (&multilib_obstack, 0);
7223 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
7224 mdswitches[i++].len = end - start;
7231 p = multilib_exclusions;
7234 /* Ignore newlines. */
7241 /* Check the arguments. */
7248 fatal ("multilib exclusions '%s' is invalid",
7249 multilib_exclusions);
7259 while (*p != ' ' && *p != ';')
7262 goto invalid_exclusions;
7266 if (*this_arg != '!')
7274 ok = used_arg (this_arg, p - this_arg);
7289 p = multilib_select;
7292 /* Ignore newlines. */
7299 /* Get the initial path. */
7306 fatal ("multilib select '%s' is invalid",
7311 this_path_len = p - this_path;
7313 /* Check the arguments. */
7320 goto invalid_select;
7329 while (*p != ' ' && *p != ';')
7332 goto invalid_select;
7336 if (*this_arg != '!')
7344 /* If this is a default argument, we can just ignore it.
7345 This is true even if this_arg begins with '!'. Beginning
7346 with '!' does not mean that this argument is necessarily
7347 inappropriate for this library: it merely means that
7348 there is a more specific library which uses this
7349 argument. If this argument is a default, we need not
7350 consider that more specific library. */
7351 ok = used_arg (this_arg, p - this_arg);
7358 if (default_arg (this_arg, p - this_arg))
7367 if (this_path_len != 1
7368 || this_path[0] != '.')
7370 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
7373 strncpy (new_multilib_dir, this_path, this_path_len);
7374 new_multilib_dir[this_path_len] = '\0';
7375 q = strchr (new_multilib_dir, ':');
7378 multilib_dir = new_multilib_dir;
7385 const char *q = this_path, *end = this_path + this_path_len;
7387 while (q < end && *q != ':')
7391 char *new_multilib_os_dir = XNEWVEC (char, end - q);
7392 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
7393 new_multilib_os_dir[end - q - 1] = '\0';
7394 multilib_os_dir = new_multilib_os_dir;
7402 if (multilib_dir == NULL && multilib_os_dir != NULL
7403 && strcmp (multilib_os_dir, ".") == 0)
7405 free ((char *) multilib_os_dir);
7406 multilib_os_dir = NULL;
7408 else if (multilib_dir != NULL && multilib_os_dir == NULL)
7409 multilib_os_dir = multilib_dir;
7412 /* Print out the multiple library subdirectory selection
7413 information. This prints out a series of lines. Each line looks
7414 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7415 required. Only the desired options are printed out, the negative
7416 matches. The options are print without a leading dash. There are
7417 no spaces to make it easy to use the information in the shell.
7418 Each subdirectory is printed only once. This assumes the ordering
7419 generated by the genmultilib script. Also, we leave out ones that match
7423 print_multilib_info (void)
7425 const char *p = multilib_select;
7426 const char *last_path = 0, *this_path;
7428 unsigned int last_path_len = 0;
7433 /* Ignore newlines. */
7440 /* Get the initial path. */
7447 fatal ("multilib select '%s' is invalid", multilib_select);
7453 /* When --disable-multilib was used but target defines
7454 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7455 to find multilib_os_dir, so skip them from output. */
7456 if (this_path[0] == '.' && this_path[1] == ':')
7459 /* Check for matches with the multilib_exclusions. We don't bother
7460 with the '!' in either list. If any of the exclusion rules match
7461 all of its options with the select rule, we skip it. */
7463 const char *e = multilib_exclusions;
7464 const char *this_arg;
7469 /* Ignore newlines. */
7476 /* Check the arguments. */
7485 fatal ("multilib exclusion '%s' is invalid",
7486 multilib_exclusions);
7497 while (*e != ' ' && *e != ';')
7500 goto invalid_exclusion;
7508 int len = e - this_arg;
7511 goto invalid_select;
7515 while (*q != ' ' && *q != ';')
7518 goto invalid_select;
7522 if (! strncmp (arg, this_arg,
7523 (len < q - arg) ? q - arg : len)
7524 || default_arg (this_arg, e - this_arg))
7554 /* If this is a duplicate, skip it. */
7555 skip = (last_path != 0
7556 && (unsigned int) (p - this_path) == last_path_len
7557 && ! strncmp (last_path, this_path, last_path_len));
7559 last_path = this_path;
7560 last_path_len = p - this_path;
7563 /* If this directory requires any default arguments, we can skip
7564 it. We will already have printed a directory identical to
7565 this one which does not require that default argument. */
7576 goto invalid_select;
7583 while (*q != ' ' && *q != ';')
7586 goto invalid_select;
7591 && default_arg (arg, q - arg))
7606 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
7617 goto invalid_select;
7625 use_arg = *p != '!';
7630 while (*p != ' ' && *p != ';')
7633 goto invalid_select;
7645 /* If there are extra options, print them now. */
7646 if (multilib_extra && *multilib_extra)
7648 int print_at = TRUE;
7651 for (q = multilib_extra; *q != '\0'; q++)
7672 /* getenv built-in spec function.
7674 Returns the value of the environment variable given by its first
7675 argument, concatenated with the second argument. If the
7676 environment variable is not defined, a fatal error is issued. */
7679 getenv_spec_function (int argc, const char **argv)
7686 value = getenv (argv[0]);
7688 fatal ("environment variable \"%s\" not defined", argv[0]);
7690 return concat (value, argv[1], NULL);
7693 /* if-exists built-in spec function.
7695 Checks to see if the file specified by the absolute pathname in
7696 ARGS exists. Returns that pathname if found.
7698 The usual use for this function is to check for a library file
7699 (whose name has been expanded with %s). */
7702 if_exists_spec_function (int argc, const char **argv)
7704 /* Must have only one argument. */
7705 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7711 /* if-exists-else built-in spec function.
7713 This is like if-exists, but takes an additional argument which
7714 is returned if the first argument does not exist. */
7717 if_exists_else_spec_function (int argc, const char **argv)
7719 /* Must have exactly two arguments. */
7723 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
7729 /* replace-outfile built-in spec function.
7731 This looks for the first argument in the outfiles array's name and
7732 replaces it with the second argument. */
7735 replace_outfile_spec_function (int argc, const char **argv)
7738 /* Must have exactly two arguments. */
7742 for (i = 0; i < n_infiles; i++)
7744 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
7745 outfiles[i] = xstrdup (argv[1]);
7750 /* Given two version numbers, compares the two numbers.
7751 A version number must match the regular expression
7752 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7755 compare_version_strings (const char *v1, const char *v2)
7760 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7761 REG_EXTENDED | REG_NOSUB) != 0)
7763 rresult = regexec (&r, v1, 0, NULL, 0);
7764 if (rresult == REG_NOMATCH)
7765 fatal ("invalid version number `%s'", v1);
7766 else if (rresult != 0)
7768 rresult = regexec (&r, v2, 0, NULL, 0);
7769 if (rresult == REG_NOMATCH)
7770 fatal ("invalid version number `%s'", v2);
7771 else if (rresult != 0)
7774 return strverscmp (v1, v2);
7778 /* version_compare built-in spec function.
7780 This takes an argument of the following form:
7782 <comparison-op> <arg1> [<arg2>] <switch> <result>
7784 and produces "result" if the comparison evaluates to true,
7785 and nothing if it doesn't.
7787 The supported <comparison-op> values are:
7789 >= true if switch is a later (or same) version than arg1
7791 < true if switch is an earlier version than arg1
7793 >< true if switch is arg1 or later, and earlier than arg2
7794 <> true if switch is earlier than arg1 or is arg2 or later
7796 If the switch is not present, the condition is false unless
7797 the first character of the <comparison-op> is '!'.
7800 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7801 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7804 version_compare_spec_function (int argc, const char **argv)
7808 const char *switch_value = NULL;
7813 fatal ("too few arguments to %%:version-compare");
7814 if (argv[0][0] == '\0')
7816 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
7818 if (argc != nargs + 3)
7819 fatal ("too many arguments to %%:version-compare");
7821 switch_len = strlen (argv[nargs + 1]);
7822 for (i = 0; i < n_switches; i++)
7823 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
7824 && check_live_switch (i, switch_len))
7825 switch_value = switches[i].part1 + switch_len;
7827 if (switch_value == NULL)
7831 comp1 = compare_version_strings (switch_value, argv[1]);
7833 comp2 = compare_version_strings (switch_value, argv[2]);
7835 comp2 = -1; /* This value unused. */
7838 switch (argv[0][0] << 8 | argv[0][1])
7840 case '>' << 8 | '=':
7841 result = comp1 >= 0;
7843 case '!' << 8 | '<':
7844 result = comp1 >= 0 || switch_value == NULL;
7849 case '!' << 8 | '>':
7850 result = comp1 < 0 || switch_value == NULL;
7852 case '>' << 8 | '<':
7853 result = comp1 >= 0 && comp2 < 0;
7855 case '<' << 8 | '>':
7856 result = comp1 < 0 || comp2 >= 0;
7860 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
7865 return argv[nargs + 2];
7868 /* %:include builtin spec function. This differs from %include in that it
7869 can be nested inside a spec, and thus be conditionalized. It takes
7870 one argument, the filename, and looks for it in the startfile path.
7871 The result is always NULL, i.e. an empty expansion. */
7874 include_spec_function (int argc, const char **argv)
7881 file = find_a_file (&startfile_prefixes, argv[0], R_OK, 0);
7882 read_specs (file ? file : argv[0], FALSE);