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 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
75 #include "coretypes.h"
76 #include "multilib.h" /* before tm.h */
79 #if ! defined( SIGCHLD ) && defined( SIGCLD )
80 # define SIGCHLD SIGCLD
88 #ifdef HAVE_SYS_RESOURCE_H
89 #include <sys/resource.h>
91 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
92 extern int getrusage (int, struct rusage
*);
95 /* By default there is no special suffix for target executables. */
96 /* FIXME: when autoconf is fixed, remove the host check - dj */
97 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
98 #define HAVE_TARGET_EXECUTABLE_SUFFIX
101 /* By default there is no special suffix for host executables. */
102 #ifdef HOST_EXECUTABLE_SUFFIX
103 #define HAVE_HOST_EXECUTABLE_SUFFIX
105 #define HOST_EXECUTABLE_SUFFIX ""
108 /* By default, the suffix for target object files is ".o". */
109 #ifdef TARGET_OBJECT_SUFFIX
110 #define HAVE_TARGET_OBJECT_SUFFIX
112 #define TARGET_OBJECT_SUFFIX ".o"
115 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
117 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
118 #ifndef LIBRARY_PATH_ENV
119 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
123 #define kill(p,s) raise(s)
126 /* If a stage of compilation returns an exit status >= 1,
127 compilation of that file ceases. */
129 #define MIN_FATAL_STATUS 1
131 /* Flag set by cppspec.c to 1. */
134 /* Flag saying to pass the greatest exit code returned by a sub-process
135 to the calling program. */
136 static int pass_exit_codes
;
138 /* Definition of string containing the arguments given to configure. */
139 #include "configargs.h"
141 /* Flag saying to print the directories gcc will search through looking for
142 programs, libraries, etc. */
144 static int print_search_dirs
;
146 /* Flag saying to print the full filename of this file
147 as found through our usual search mechanism. */
149 static const char *print_file_name
= NULL
;
151 /* As print_file_name, but search for executable file. */
153 static const char *print_prog_name
= NULL
;
155 /* Flag saying to print the relative path we'd use to
156 find libgcc.a given the current compiler flags. */
158 static int print_multi_directory
;
160 /* Flag saying to print the relative path we'd use to
161 find OS libraries given the current compiler flags. */
163 static int print_multi_os_directory
;
165 /* Flag saying to print the list of subdirectories and
166 compiler flags used to select them in a standard form. */
168 static int print_multi_lib
;
170 /* Flag saying to print the command line options understood by gcc and its
173 static int print_help_list
;
175 /* Flag indicating whether we should print the command and arguments */
177 static int verbose_flag
;
179 /* Flag indicating whether we should ONLY print the command and
180 arguments (like verbose_flag) without executing the command.
181 Displayed arguments are quoted so that the generated command
182 line is suitable for execution. This is intended for use in
183 shell scripts to capture the driver-generated command line. */
184 static int verbose_only_flag
;
186 /* Flag indicating to print target specific command line options. */
188 static int target_help_flag
;
190 /* Flag indicating whether we should report subprocess execution times
191 (if this is supported by the system - see pexecute.c). */
193 static int report_times
;
195 /* Nonzero means place this string before uses of /, so that include
196 and library files can be found in an alternate location. */
198 #ifdef TARGET_SYSTEM_ROOT
199 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
201 static const char *target_system_root
= 0;
204 /* Nonzero means pass the updated target_system_root to the compiler. */
206 static int target_system_root_changed
;
208 /* Nonzero means append this string to target_system_root. */
210 static const char *target_sysroot_suffix
= 0;
212 /* Nonzero means append this string to target_system_root for headers. */
214 static const char *target_sysroot_hdrs_suffix
= 0;
216 /* Nonzero means write "temp" files in source directory
217 and use the source file's name in them, and don't delete them. */
219 static int save_temps_flag
;
221 /* Nonzero means pass multiple source files to the compiler at one time. */
223 static int combine_flag
= 0;
225 /* Nonzero means use pipes to communicate between subprocesses.
226 Overridden by either of the above two flags. */
228 static int use_pipes
;
230 /* The compiler version. */
232 static const char *compiler_version
;
234 /* The target version specified with -V */
236 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
238 /* The target machine specified with -b. */
240 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
242 /* Nonzero if cross-compiling.
243 When -b is used, the value comes from the `specs' file. */
246 static const char *cross_compile
= "1";
248 static const char *cross_compile
= "0";
251 #ifdef MODIFY_TARGET_NAME
253 /* Information on how to alter the target name based on a command-line
254 switch. The only case we support now is simply appending or deleting a
255 string to or from the end of the first part of the configuration name. */
257 static const struct modify_target
259 const char *const sw
;
260 const enum add_del
{ADD
, DELETE
} add_del
;
261 const char *const str
;
263 modify_target
[] = MODIFY_TARGET_NAME
;
266 /* The number of errors that have occurred; the link phase will not be
267 run if this is nonzero. */
268 static int error_count
= 0;
270 /* Greatest exit code of sub-processes that has been encountered up to
272 static int greatest_status
= 1;
274 /* This is the obstack which we use to allocate many strings. */
276 static struct obstack obstack
;
278 /* This is the obstack to build an environment variable to pass to
279 collect2 that describes all of the relevant switches of what to
280 pass the compiler in building the list of pointers to constructors
283 static struct obstack collect_obstack
;
285 /* These structs are used to collect resource usage information for
287 #ifdef HAVE_GETRUSAGE
288 static struct rusage rus
, prus
;
291 /* Forward declaration for prototypes. */
294 static void init_spec (void);
295 static void store_arg (const char *, int, int);
296 static char *load_specs (const char *);
297 static void read_specs (const char *, int);
298 static void set_spec (const char *, const char *);
299 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
300 static char *build_search_list (struct path_prefix
*, const char *, int);
301 static void putenv_from_prefixes (struct path_prefix
*, const char *);
302 static int access_check (const char *, int);
303 static char *find_a_file (struct path_prefix
*, const char *, int, int);
304 static void add_prefix (struct path_prefix
*, const char *, const char *,
305 int, int, int *, int);
306 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
307 const char *, int, int, int *, int);
308 static void translate_options (int *, const char *const **);
309 static char *skip_whitespace (char *);
310 static void delete_if_ordinary (const char *);
311 static void delete_temp_files (void);
312 static void delete_failure_queue (void);
313 static void clear_failure_queue (void);
314 static int check_live_switch (int, int);
315 static const char *handle_braces (const char *);
316 static inline bool input_suffix_matches (const char *, const char *);
317 static inline bool switch_matches (const char *, const char *, int);
318 static inline void mark_matching_switches (const char *, const char *, int);
319 static inline void process_marked_switches (void);
320 static const char *process_brace_body (const char *, const char *, const char *, int, int);
321 static const struct spec_function
*lookup_spec_function (const char *);
322 static const char *eval_spec_function (const char *, const char *);
323 static const char *handle_spec_function (const char *);
324 static char *save_string (const char *, int);
325 static void set_collect_gcc_options (void);
326 static int do_spec_1 (const char *, int, const char *);
327 static int do_spec_2 (const char *);
328 static void do_option_spec (const char *, const char *);
329 static void do_self_spec (const char *);
330 static const char *find_file (const char *);
331 static int is_directory (const char *, const char *, int);
332 static const char *validate_switches (const char *);
333 static void validate_all_switches (void);
334 static inline void validate_switches_from_spec (const char *);
335 static void give_switch (int, int);
336 static int used_arg (const char *, int);
337 static int default_arg (const char *, int);
338 static void set_multilib_dir (void);
339 static void print_multilib_info (void);
340 static void perror_with_name (const char *);
341 static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN
;
342 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
343 static void display_help (void);
344 static void add_preprocessor_option (const char *, int);
345 static void add_assembler_option (const char *, int);
346 static void add_linker_option (const char *, int);
347 static void process_command (int, const char **);
348 static int execute (void);
349 static void alloc_args (void);
350 static void clear_args (void);
351 static void fatal_error (int);
352 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
353 static void init_gcc_specs (struct obstack
*, const char *, const char *,
356 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
357 static const char *convert_filename (const char *, int, int);
360 static const char *if_exists_spec_function (int, const char **);
361 static const char *if_exists_else_spec_function (int, const char **);
363 /* The Specs Language
365 Specs are strings containing lines, each of which (if not blank)
366 is made up of a program name, and arguments separated by spaces.
367 The program name must be exact and start from root, since no path
368 is searched and it is unreliable to depend on the current working directory.
369 Redirection of input or output is not supported; the subprograms must
370 accept filenames saying what files to read and write.
372 In addition, the specs can contain %-sequences to substitute variable text
373 or for conditional text. Here is a table of all defined %-sequences.
374 Note that spaces are not generated automatically around the results of
375 expanding these sequences; therefore, you can concatenate them together
376 or with constant text in a single argument.
378 %% substitute one % into the program name or argument.
379 %i substitute the name of the input file being processed.
380 %b substitute the basename of the input file being processed.
381 This is the substring up to (and not including) the last period
382 and not including the directory.
383 %B same as %b, but include the file suffix (text after the last period).
385 substitute a file name that has suffix SUFFIX and is chosen
386 once per compilation, and mark the argument a la %d. To reduce
387 exposure to denial-of-service attacks, the file name is now
388 chosen in a way that is hard to predict even when previously
389 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
390 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
391 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
392 had been pre-processed. Previously, %g was simply substituted
393 with a file name chosen once per compilation, without regard
394 to any appended suffix (which was therefore treated just like
395 ordinary text), making such attacks more likely to succeed.
397 like %g, but if -pipe is in effect, expands simply to "-".
399 like %g, but if -pipe is in effect, expands to nothing. (We have both
400 %| and %m to accommodate differences between system assemblers; see
401 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
403 like %g, but generates a new temporary file name even if %uSUFFIX
406 substitutes the last file name generated with %uSUFFIX, generating a
407 new one if there is no such last file name. In the absence of any
408 %uSUFFIX, this is just like %gSUFFIX, except they don't share
409 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
410 would involve the generation of two distinct file names, one
411 for each `%g.s' and another for each `%U.s'. Previously, %U was
412 simply substituted with a file name chosen for the previous %u,
413 without regard to any appended suffix.
415 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
416 writable, and if save-temps is off; otherwise, substitute the name
417 of a temporary file, just like %u. This temporary file is not
418 meant for communication between processes, but rather as a junk
421 substitutes .SUFFIX for the suffixes of a matched switch's args when
422 it is subsequently output with %*. SUFFIX is terminated by the next
424 %d marks the argument containing or following the %d as a
425 temporary file name, so that that file will be deleted if CC exits
426 successfully. Unlike %g, this contributes no text to the argument.
427 %w marks the argument containing or following the %w as the
428 "output file" of this compilation. This puts the argument
429 into the sequence of arguments that %o will substitute later.
430 %V indicates that this compilation produces no "output file".
432 like %{...} but mark last argument supplied within
433 as a file to be deleted on failure.
434 %o substitutes the names of all the output files, with spaces
435 automatically placed around them. You should write spaces
436 around the %o as well or the results are undefined.
437 %o is for use in the specs for running the linker.
438 Input files whose names have no recognized suffix are not compiled
439 at all, but they are included among the output files, so they will
441 %O substitutes the suffix for object files. Note that this is
442 handled specially when it immediately follows %g, %u, or %U
443 (with or without a suffix argument) because of the need for
444 those to form complete file names. The handling is such that
445 %O is treated exactly as if it had already been substituted,
446 except that %g, %u, and %U do not currently support additional
447 SUFFIX characters following %O as they would following, for
449 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
450 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
451 and -B options) as necessary.
452 %s current argument is the name of a library or startup file of some sort.
453 Search for that file in a standard list of directories
454 and substitute the full name found.
455 %eSTR Print STR as an error message. STR is terminated by a newline.
456 Use this when inconsistent options are detected.
457 %nSTR Print STR as a notice. STR is terminated by a newline.
458 %x{OPTION} Accumulate an option for %X.
459 %X Output the accumulated linker options specified by compilations.
460 %Y Output the accumulated assembler options specified by compilations.
461 %Z Output the accumulated preprocessor options specified by compilations.
462 %a process ASM_SPEC as a spec.
463 This allows config.h to specify part of the spec for running as.
464 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
465 used here. This can be used to run a post-processor after the
466 assembler has done its job.
467 %D Dump out a -L option for each directory in startfile_prefixes.
468 If multilib_dir is set, extra entries are generated with it affixed.
469 %l process LINK_SPEC as a spec.
470 %L process LIB_SPEC as a spec.
471 %G process LIBGCC_SPEC as a spec.
472 %M output multilib_dir with directory separators replaced with "_";
473 if multilib_dir is not set or is ".", output "".
474 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
475 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
476 %C process CPP_SPEC as a spec.
477 %1 process CC1_SPEC as a spec.
478 %2 process CC1PLUS_SPEC as a spec.
479 %* substitute the variable part of a matched option. (See below.)
480 Note that each comma in the substituted string is replaced by
482 %<S remove all occurrences of -S from the command line.
483 Note - this command is position dependent. % commands in the
484 spec string before this one will see -S, % commands in the
485 spec string after this one will not.
486 %<S* remove all occurrences of all switches beginning with -S from the
489 Call the named function FUNCTION, passing it ARGS. ARGS is
490 first processed as a nested spec string, then split into an
491 argument vector in the usual fashion. The function returns
492 a string which is processed as if it had appeared literally
493 as part of the current spec.
494 %{S} substitutes the -S switch, if that switch was given to CC.
495 If that switch was not specified, this substitutes nothing.
496 Here S is a metasyntactic variable.
497 %{S*} substitutes all the switches specified to CC whose names start
498 with -S. This is used for -o, -I, etc; switches that take
499 arguments. CC considers `-o foo' as being one switch whose
500 name starts with `o'. %{o*} would substitute this text,
501 including the space; thus, two arguments would be generated.
502 %{S*&T*} likewise, but preserve order of S and T options (the order
503 of S and T in the spec is not significant). Can be any number
504 of ampersand-separated variables; for each the wild card is
505 optional. Useful for CPP as %{D*&U*&A*}.
507 %{S:X} substitutes X, if the -S switch was given to CC.
508 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
509 %{S*:X} substitutes X if one or more switches whose names start
510 with -S was given to CC. Normally X is substituted only
511 once, no matter how many such switches appeared. However,
512 if %* appears somewhere in X, then X will be substituted
513 once for each matching switch, with the %* replaced by the
514 part of that switch that matched the '*'.
515 %{.S:X} substitutes X, if processing a file with suffix S.
516 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
518 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
519 combined with !, ., and * as above binding stronger than the OR.
520 If %* appears in X, all of the alternatives must be starred, and
521 only the first matching alternative is substituted.
522 %{S:X; if S was given to CC, substitutes X;
523 T:Y; else if T was given to CC, substitutes Y;
524 :D} else substitutes D. There can be as many clauses as you need.
525 This may be combined with ., !, |, and * as above.
527 %(Spec) processes a specification defined in a specs file as *Spec:
528 %[Spec] as above, but put __ around -D arguments
530 The conditional text X in a %{S:X} or similar construct may contain
531 other nested % constructs or spaces, or even newlines. They are
532 processed as usual, as described above. Trailing white space in X is
533 ignored. White space may also appear anywhere on the left side of the
534 colon in these constructs, except between . or * and the corresponding
537 The -O, -f, -m, and -W switches are handled specifically in these
538 constructs. If another value of -O or the negated form of a -f, -m, or
539 -W switch is found later in the command line, the earlier switch
540 value is ignored, except with {S*} where S is just one letter; this
541 passes all matching options.
543 The character | at the beginning of the predicate text is used to indicate
544 that a command should be piped to the following command, but only if -pipe
547 Note that it is built into CC which switches take arguments and which
548 do not. You might think it would be useful to generalize this to
549 allow each compiler's spec to say which switches take arguments. But
550 this cannot be done in a consistent fashion. CC cannot even decide
551 which input files have been specified without knowing which switches
552 take arguments, and it must know which input files to compile in order
553 to tell which compilers to run.
555 CC also knows implicitly that arguments starting in `-l' are to be
556 treated as compiler output files, and passed to the linker in their
557 proper position among the other output files. */
559 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
561 /* config.h can define ASM_SPEC to provide extra args to the assembler
562 or extra switch-translations. */
567 /* config.h can define ASM_FINAL_SPEC to run a post processor after
568 the assembler has run. */
569 #ifndef ASM_FINAL_SPEC
570 #define ASM_FINAL_SPEC ""
573 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
574 or extra switch-translations. */
579 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
580 or extra switch-translations. */
585 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
586 or extra switch-translations. */
588 #define CC1PLUS_SPEC ""
591 /* config.h can define LINK_SPEC to provide extra args to the linker
592 or extra switch-translations. */
597 /* config.h can define LIB_SPEC to override the default libraries. */
599 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
602 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
605 #if defined(REAL_LIBGCC_SPEC)
606 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
607 #elif defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
608 /* Have gcc do the search for libgcc.a. */
609 #define LIBGCC_SPEC "libgcc.a%s"
611 #define LIBGCC_SPEC "-lgcc"
615 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
616 #ifndef STARTFILE_SPEC
617 #define STARTFILE_SPEC \
618 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
621 /* config.h can define SWITCHES_NEED_SPACES to control which options
622 require spaces between the option and the argument. */
623 #ifndef SWITCHES_NEED_SPACES
624 #define SWITCHES_NEED_SPACES ""
627 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
629 #define ENDFILE_SPEC ""
633 #define LINKER_NAME "collect2"
636 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
638 #ifndef ASM_DEBUG_SPEC
639 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
640 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
641 # define ASM_DEBUG_SPEC \
642 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
643 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
644 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
646 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
647 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
649 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
650 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
654 #ifndef ASM_DEBUG_SPEC
655 # define ASM_DEBUG_SPEC ""
658 /* Here is the spec for running the linker, after compiling all files. */
660 /* This is overridable by the target in case they need to specify the
661 -lgcc and -lc order specially, yet not require them to override all
662 of LINK_COMMAND_SPEC. */
663 #ifndef LINK_GCC_C_SEQUENCE_SPEC
664 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
667 #ifndef LINK_PIE_SPEC
669 #define LINK_PIE_SPEC "%{pie:-pie} "
671 #define LINK_PIE_SPEC "%{pie:} "
675 /* -u* was put back because both BSD and SysV seem to support it. */
676 /* %{static:} simply prevents an error message if the target machine
677 doesn't handle -static. */
678 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
679 scripts which exist in user specified directories, or in standard
681 #ifndef LINK_COMMAND_SPEC
682 #define LINK_COMMAND_SPEC "\
683 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
684 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
685 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
686 %{static:} %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate:-lgcov}\
687 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
688 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
691 #ifndef LINK_LIBGCC_SPEC
692 # ifdef LINK_LIBGCC_SPECIAL
693 /* Don't generate -L options for startfile prefix list. */
694 # define LINK_LIBGCC_SPEC ""
696 /* Do generate them. */
697 # define LINK_LIBGCC_SPEC "%D"
701 #ifndef STARTFILE_PREFIX_SPEC
702 # define STARTFILE_PREFIX_SPEC ""
705 #ifndef SYSROOT_SUFFIX_SPEC
706 # define SYSROOT_SUFFIX_SPEC ""
709 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
710 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
713 static const char *asm_debug
;
714 static const char *cpp_spec
= CPP_SPEC
;
715 static const char *cc1_spec
= CC1_SPEC
;
716 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
717 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
718 static const char *asm_spec
= ASM_SPEC
;
719 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
720 static const char *link_spec
= LINK_SPEC
;
721 static const char *lib_spec
= LIB_SPEC
;
722 static const char *libgcc_spec
= LIBGCC_SPEC
;
723 static const char *endfile_spec
= ENDFILE_SPEC
;
724 static const char *startfile_spec
= STARTFILE_SPEC
;
725 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
726 static const char *linker_name_spec
= LINKER_NAME
;
727 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
728 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
729 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
730 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
731 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
733 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
734 There should be no need to override these in target dependent files,
735 but we need to copy them to the specs file so that newer versions
736 of the GCC driver can correctly drive older tool chains with the
737 appropriate -B options. */
739 /* When cpplib handles traditional preprocessing, get rid of this, and
740 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
741 that we default the front end language better. */
742 static const char *trad_capable_cpp
=
743 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
745 /* We don't wrap .d files in %W{} since a missing .d file, and
746 therefore no dependency entry, confuses make into thinking a .o
747 file that happens to exist is up-to-date. */
748 static const char *cpp_unique_options
=
749 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
750 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
751 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
752 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
753 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
754 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
755 %{trigraphs} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
758 /* This contains cpp options which are common with cc1_options and are passed
759 only when preprocessing only to avoid duplication. We pass the cc1 spec
760 options to the preprocessor so that it the cc1 spec may manipulate
761 options used to set target flags. Those special target flags settings may
762 in turn cause preprocessor symbols to be defined specially. */
763 static const char *cpp_options
=
764 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
765 %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*} %{undef}";
767 /* This contains cpp options which are not passed when the preprocessor
768 output will be used by another program. */
769 static const char *cpp_debug_options
= "%{d*}";
771 /* NB: This is shared amongst all front-ends. */
772 static const char *cc1_options
=
773 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
774 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
775 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
776 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
777 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
778 %{Qn:-fno-ident} %{--help:--help}\
779 %{--target-help:--target-help}\
780 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
781 %{fsyntax-only:-o %j} %{-param*}";
783 static const char *asm_options
=
784 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
786 static const char *invoke_as
=
787 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
788 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
790 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
793 /* Some compilers have limits on line lengths, and the multilib_select
794 and/or multilib_matches strings can be very long, so we build them at
796 static struct obstack multilib_obstack
;
797 static const char *multilib_select
;
798 static const char *multilib_matches
;
799 static const char *multilib_defaults
;
800 static const char *multilib_exclusions
;
802 /* Check whether a particular argument is a default argument. */
804 #ifndef MULTILIB_DEFAULTS
805 #define MULTILIB_DEFAULTS { "" }
808 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
810 #ifndef DRIVER_SELF_SPECS
811 #define DRIVER_SELF_SPECS ""
814 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
816 #ifndef OPTION_DEFAULT_SPECS
817 #define OPTION_DEFAULT_SPECS { "", "" }
826 static const struct default_spec
827 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
831 struct user_specs
*next
;
832 const char *filename
;
835 static struct user_specs
*user_specs_head
, *user_specs_tail
;
837 #ifndef SWITCH_TAKES_ARG
838 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
841 #ifndef WORD_SWITCH_TAKES_ARG
842 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
845 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
846 /* This defines which switches stop a full compilation. */
847 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
848 ((CHAR) == 'c' || (CHAR) == 'S')
850 #ifndef SWITCH_CURTAILS_COMPILATION
851 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
852 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
856 /* Record the mapping from file suffixes for compilation specs. */
860 const char *suffix
; /* Use this compiler for input files
861 whose names end in this suffix. */
863 const char *spec
; /* To use this compiler, run this spec. */
865 const char *cpp_spec
; /* If non-NULL, substitute this spec
866 for `%C', rather than the usual
868 const int combinable
; /* If non-zero, compiler can deal with
869 multiple source files at once (IMA). */
870 const int needs_preprocessing
; /* If non-zero, source files need to
871 be run through a preprocessor. */
874 /* Pointer to a vector of `struct compiler' that gives the spec for
875 compiling a file, based on its suffix.
876 A file that does not end in any of these suffixes will be passed
877 unchanged to the loader and nothing else will be done to it.
879 An entry containing two 0s is used to terminate the vector.
881 If multiple entries match a file, the last matching one is used. */
883 static struct compiler
*compilers
;
885 /* Number of entries in `compilers', not counting the null terminator. */
887 static int n_compilers
;
889 /* The default list of file name suffixes and their compilation specs. */
891 static const struct compiler default_compilers
[] =
893 /* Add lists of suffixes of known languages here. If those languages
894 were not present when we built the driver, we will hit these copies
895 and be given a more meaningful error than "file not used since
896 linking is not done". */
897 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
898 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
899 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
900 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
901 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
902 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
903 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
904 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
905 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
906 {".r", "#Ratfor", 0, 0, 0},
907 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
908 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
909 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
910 /* Next come the entries for C. */
911 {".c", "@c", 0, 1, 1},
913 /* cc1 has an integrated ISO C preprocessor. We should invoke the
914 external preprocessor if -save-temps is given. */
915 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
917 %{traditional|ftraditional:\
918 %eGNU C no longer supports -traditional without -E}\
920 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
921 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
922 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
924 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
925 cc1 %(cpp_unique_options) %(cc1_options)}}}\
926 %{!fsyntax-only:%(invoke_as)}} \
928 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
929 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
930 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
931 cc1 %(cpp_unique_options) %(cc1_options)}}\
932 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
934 "%{!E:%e-E required when input is from standard input}\
935 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
936 {".h", "@c-header", 0, 0, 0},
938 /* cc1 has an integrated ISO C preprocessor. We should invoke the
939 external preprocessor if -save-temps is given. */
940 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
942 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
943 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
944 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
946 -o %g.s %{!o*:--output-pch=%i.gch}\
947 %W{o*:--output-pch=%*}%V}\
948 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
949 cc1 %(cpp_unique_options) %(cc1_options)\
950 -o %g.s %{!o*:--output-pch=%i.gch}\
951 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
952 {".i", "@cpp-output", 0, 1, 0},
954 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
955 {".s", "@assembler", 0, 1, 0},
957 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
958 {".S", "@assembler-with-cpp", 0, 1, 0},
959 {"@assembler-with-cpp",
960 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
961 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
962 %{E|M|MM:%(cpp_debug_options)}\
963 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
964 as %(asm_debug) %(asm_options) %|.s %A }}}}"
966 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
967 %{E|M|MM:%(cpp_debug_options)}\
968 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
969 as %(asm_debug) %(asm_options) %m.s %A }}}}"
974 /* Mark end of table. */
978 /* Number of elements in default_compilers, not counting the terminator. */
980 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
982 /* A vector of options to give to the linker.
983 These options are accumulated by %x,
984 and substituted into the linker command with %X. */
985 static int n_linker_options
;
986 static char **linker_options
;
988 /* A vector of options to give to the assembler.
989 These options are accumulated by -Wa,
990 and substituted into the assembler command with %Y. */
991 static int n_assembler_options
;
992 static char **assembler_options
;
994 /* A vector of options to give to the preprocessor.
995 These options are accumulated by -Wp,
996 and substituted into the preprocessor command with %Z. */
997 static int n_preprocessor_options
;
998 static char **preprocessor_options
;
1000 /* Define how to map long options into short ones. */
1002 /* This structure describes one mapping. */
1005 /* The long option's name. */
1006 const char *const name
;
1007 /* The equivalent short option. */
1008 const char *const equivalent
;
1009 /* Argument info. A string of flag chars; NULL equals no options.
1010 a => argument required.
1011 o => argument optional.
1012 j => join argument to equivalent, making one word.
1013 * => require other text after NAME as an argument. */
1014 const char *const arg_info
;
1017 /* This is the table of mappings. Mappings are tried sequentially
1018 for each option encountered; the first one that matches, wins. */
1020 static const struct option_map option_map
[] =
1022 {"--all-warnings", "-Wall", 0},
1023 {"--ansi", "-ansi", 0},
1024 {"--assemble", "-S", 0},
1025 {"--assert", "-A", "a"},
1026 {"--classpath", "-fclasspath=", "aj"},
1027 {"--bootclasspath", "-fbootclasspath=", "aj"},
1028 {"--CLASSPATH", "-fclasspath=", "aj"},
1029 {"--combine", "-combine", 0},
1030 {"--comments", "-C", 0},
1031 {"--comments-in-macros", "-CC", 0},
1032 {"--compile", "-c", 0},
1033 {"--debug", "-g", "oj"},
1034 {"--define-macro", "-D", "aj"},
1035 {"--dependencies", "-M", 0},
1036 {"--dump", "-d", "a"},
1037 {"--dumpbase", "-dumpbase", "a"},
1038 {"--entry", "-e", 0},
1039 {"--extra-warnings", "-W", 0},
1040 {"--for-assembler", "-Wa", "a"},
1041 {"--for-linker", "-Xlinker", "a"},
1042 {"--force-link", "-u", "a"},
1043 {"--imacros", "-imacros", "a"},
1044 {"--include", "-include", "a"},
1045 {"--include-barrier", "-I-", 0},
1046 {"--include-directory", "-I", "aj"},
1047 {"--include-directory-after", "-idirafter", "a"},
1048 {"--include-prefix", "-iprefix", "a"},
1049 {"--include-with-prefix", "-iwithprefix", "a"},
1050 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1051 {"--include-with-prefix-after", "-iwithprefix", "a"},
1052 {"--language", "-x", "a"},
1053 {"--library-directory", "-L", "a"},
1054 {"--machine", "-m", "aj"},
1055 {"--machine-", "-m", "*j"},
1056 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1057 {"--no-line-commands", "-P", 0},
1058 {"--no-precompiled-includes", "-noprecomp", 0},
1059 {"--no-standard-includes", "-nostdinc", 0},
1060 {"--no-standard-libraries", "-nostdlib", 0},
1061 {"--no-warnings", "-w", 0},
1062 {"--optimize", "-O", "oj"},
1063 {"--output", "-o", "a"},
1064 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1065 {"--param", "--param", "a"},
1066 {"--pedantic", "-pedantic", 0},
1067 {"--pedantic-errors", "-pedantic-errors", 0},
1068 {"--pie", "-pie", 0},
1069 {"--pipe", "-pipe", 0},
1070 {"--prefix", "-B", "a"},
1071 {"--preprocess", "-E", 0},
1072 {"--print-search-dirs", "-print-search-dirs", 0},
1073 {"--print-file-name", "-print-file-name=", "aj"},
1074 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1075 {"--print-missing-file-dependencies", "-MG", 0},
1076 {"--print-multi-lib", "-print-multi-lib", 0},
1077 {"--print-multi-directory", "-print-multi-directory", 0},
1078 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1079 {"--print-prog-name", "-print-prog-name=", "aj"},
1080 {"--profile", "-p", 0},
1081 {"--profile-blocks", "-a", 0},
1082 {"--quiet", "-q", 0},
1083 {"--resource", "-fcompile-resource=", "aj"},
1084 {"--save-temps", "-save-temps", 0},
1085 {"--shared", "-shared", 0},
1086 {"--silent", "-q", 0},
1087 {"--specs", "-specs=", "aj"},
1088 {"--static", "-static", 0},
1089 {"--std", "-std=", "aj"},
1090 {"--symbolic", "-symbolic", 0},
1091 {"--time", "-time", 0},
1092 {"--trace-includes", "-H", 0},
1093 {"--traditional", "-traditional", 0},
1094 {"--traditional-cpp", "-traditional-cpp", 0},
1095 {"--trigraphs", "-trigraphs", 0},
1096 {"--undefine-macro", "-U", "aj"},
1097 {"--user-dependencies", "-MM", 0},
1098 {"--verbose", "-v", 0},
1099 {"--warn-", "-W", "*j"},
1100 {"--write-dependencies", "-MD", 0},
1101 {"--write-user-dependencies", "-MMD", 0},
1106 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1107 static const struct {
1108 const char *const option_found
;
1109 const char *const replacements
;
1110 } target_option_translations
[] =
1112 TARGET_OPTION_TRANSLATE_TABLE
,
1117 /* Translate the options described by *ARGCP and *ARGVP.
1118 Make a new vector and store it back in *ARGVP,
1119 and store its length in *ARGVC. */
1122 translate_options (int *argcp
, const char *const **argvp
)
1126 const char *const *argv
= *argvp
;
1127 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1128 const char **newv
= xmalloc (newvsize
);
1132 newv
[newindex
++] = argv
[i
++];
1136 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1140 target_option_translations
[tott_idx
].option_found
;
1143 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1150 for (sp
= target_option_translations
[tott_idx
].replacements
;
1157 newvsize
+= spaces
* sizeof (const char *);
1158 newv
= xrealloc (newv
, newvsize
);
1160 sp
= target_option_translations
[tott_idx
].replacements
;
1169 newv
[newindex
++] = np
;
1170 while (*np
!= ' ' && *np
)
1181 if (target_option_translations
[tott_idx
].option_found
)
1185 /* Translate -- options. */
1186 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1189 /* Find a mapping that applies to this option. */
1190 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1192 size_t optlen
= strlen (option_map
[j
].name
);
1193 size_t arglen
= strlen (argv
[i
]);
1194 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1195 const char *arginfo
= option_map
[j
].arg_info
;
1200 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1202 const char *arg
= 0;
1204 if (arglen
< optlen
)
1207 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1208 if (strlen (option_map
[k
].name
) >= arglen
1209 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1211 error ("ambiguous abbreviation %s", argv
[i
]);
1215 if (k
!= ARRAY_SIZE (option_map
))
1219 if (arglen
> optlen
)
1221 /* If the option has an argument, accept that. */
1222 if (argv
[i
][optlen
] == '=')
1223 arg
= argv
[i
] + optlen
+ 1;
1225 /* If this mapping requires extra text at end of name,
1226 accept that as "argument". */
1227 else if (strchr (arginfo
, '*') != 0)
1228 arg
= argv
[i
] + optlen
;
1230 /* Otherwise, extra text at end means mismatch.
1231 Try other mappings. */
1236 else if (strchr (arginfo
, '*') != 0)
1238 error ("incomplete `%s' option", option_map
[j
].name
);
1242 /* Handle arguments. */
1243 if (strchr (arginfo
, 'a') != 0)
1249 error ("missing argument to `%s' option",
1250 option_map
[j
].name
);
1257 else if (strchr (arginfo
, '*') != 0)
1259 else if (strchr (arginfo
, 'o') == 0)
1262 error ("extraneous argument to `%s' option",
1263 option_map
[j
].name
);
1267 /* Store the translation as one argv elt or as two. */
1268 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1269 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1273 newv
[newindex
++] = option_map
[j
].equivalent
;
1274 newv
[newindex
++] = arg
;
1277 newv
[newindex
++] = option_map
[j
].equivalent
;
1285 /* Handle old-fashioned options--just copy them through,
1286 with their arguments. */
1287 else if (argv
[i
][0] == '-')
1289 const char *p
= argv
[i
] + 1;
1293 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1294 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1295 else if (WORD_SWITCH_TAKES_ARG (p
))
1296 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1297 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1300 else if (! strcmp (p
, "Xlinker"))
1302 else if (! strcmp (p
, "Xpreprocessor"))
1304 else if (! strcmp (p
, "Xassembler"))
1307 /* Watch out for an option at the end of the command line that
1308 is missing arguments, and avoid skipping past the end of the
1310 if (nskip
+ i
> argc
)
1315 newv
[newindex
++] = argv
[i
++];
1320 /* Ordinary operands, or +e options. */
1321 newv
[newindex
++] = argv
[i
++];
1331 skip_whitespace (char *p
)
1335 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1336 be considered whitespace. */
1337 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1339 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1353 /* Structures to keep track of prefixes to try when looking for files. */
1357 const char *prefix
; /* String to prepend to the path. */
1358 struct prefix_list
*next
; /* Next in linked list. */
1359 int require_machine_suffix
; /* Don't use without machine_suffix. */
1360 /* 2 means try both machine_suffix and just_machine_suffix. */
1361 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1362 int priority
; /* Sort key - priority within list. */
1363 int os_multilib
; /* 1 if OS multilib scheme should be used,
1364 0 for GCC multilib scheme. */
1369 struct prefix_list
*plist
; /* List of prefixes to try */
1370 int max_len
; /* Max length of a prefix in PLIST */
1371 const char *name
; /* Name of this list (used in config stuff) */
1374 /* List of prefixes to try when looking for executables. */
1376 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1378 /* List of prefixes to try when looking for startup (crt0) files. */
1380 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1382 /* List of prefixes to try when looking for include files. */
1384 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1386 /* Suffix to attach to directories searched for commands.
1387 This looks like `MACHINE/VERSION/'. */
1389 static const char *machine_suffix
= 0;
1391 /* Suffix to attach to directories searched for commands.
1392 This is just `MACHINE/'. */
1394 static const char *just_machine_suffix
= 0;
1396 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1398 static const char *gcc_exec_prefix
;
1400 /* Adjusted value of standard_libexec_prefix. */
1402 static const char *gcc_libexec_prefix
;
1404 /* Default prefixes to attach to command names. */
1406 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1407 #undef MD_EXEC_PREFIX
1408 #undef MD_STARTFILE_PREFIX
1409 #undef MD_STARTFILE_PREFIX_1
1412 /* If no prefixes defined, use the null string, which will disable them. */
1413 #ifndef MD_EXEC_PREFIX
1414 #define MD_EXEC_PREFIX ""
1416 #ifndef MD_STARTFILE_PREFIX
1417 #define MD_STARTFILE_PREFIX ""
1419 #ifndef MD_STARTFILE_PREFIX_1
1420 #define MD_STARTFILE_PREFIX_1 ""
1423 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1424 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1425 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1426 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1428 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1429 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1430 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1431 static const char *const standard_startfile_prefix_1
= "/lib/";
1432 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1434 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1435 static const char *tooldir_prefix
;
1437 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1439 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1441 /* Subdirectory to use for locating libraries. Set by
1442 set_multilib_dir based on the compilation options. */
1444 static const char *multilib_dir
;
1446 /* Subdirectory to use for locating libraries in OS conventions. Set by
1447 set_multilib_dir based on the compilation options. */
1449 static const char *multilib_os_dir
;
1451 /* Structure to keep track of the specs that have been defined so far.
1452 These are accessed using %(specname) or %[specname] in a compiler
1457 /* The following 2 fields must be first */
1458 /* to allow EXTRA_SPECS to be initialized */
1459 const char *name
; /* name of the spec. */
1460 const char *ptr
; /* available ptr if no static pointer */
1462 /* The following fields are not initialized */
1463 /* by EXTRA_SPECS */
1464 const char **ptr_spec
; /* pointer to the spec itself. */
1465 struct spec_list
*next
; /* Next spec in linked list. */
1466 int name_len
; /* length of the name */
1467 int alloc_p
; /* whether string was allocated */
1470 #define INIT_STATIC_SPEC(NAME,PTR) \
1471 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1473 /* List of statically defined specs. */
1474 static struct spec_list static_specs
[] =
1476 INIT_STATIC_SPEC ("asm", &asm_spec
),
1477 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1478 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1479 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1480 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1481 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1482 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1483 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1484 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1485 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1486 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1487 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1488 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1489 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1490 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1491 INIT_STATIC_SPEC ("link", &link_spec
),
1492 INIT_STATIC_SPEC ("lib", &lib_spec
),
1493 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1494 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1495 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1496 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1497 INIT_STATIC_SPEC ("version", &compiler_version
),
1498 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1499 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1500 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1501 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1502 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1503 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1504 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1505 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1506 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1507 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1508 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1509 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1510 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1511 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1514 #ifdef EXTRA_SPECS /* additional specs needed */
1515 /* Structure to keep track of just the first two args of a spec_list.
1516 That is all that the EXTRA_SPECS macro gives us. */
1519 const char *const name
;
1520 const char *const ptr
;
1523 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1524 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1527 /* List of dynamically allocates specs that have been defined so far. */
1529 static struct spec_list
*specs
= (struct spec_list
*) 0;
1531 /* List of static spec functions. */
1533 static const struct spec_function static_spec_functions
[] =
1535 { "if-exists", if_exists_spec_function
},
1536 { "if-exists-else", if_exists_else_spec_function
},
1540 static int processing_spec_function
;
1542 /* Add appropriate libgcc specs to OBSTACK, taking into account
1543 various permutations of -shared-libgcc, -shared, and such. */
1545 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1547 #ifndef USE_LD_AS_NEEDED
1548 #define USE_LD_AS_NEEDED 0
1552 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1553 const char *static_name
, const char *eh_name
)
1557 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1558 "}%{!static:%{!static-libgcc:",
1559 #if USE_LD_AS_NEEDED
1560 "%{!shared-libgcc:", static_name
,
1561 " --as-needed ", shared_name
, " --no-as-needed}"
1562 "%{shared-libgcc:", shared_name
, "%{!shared: ", static_name
,
1565 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1566 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1567 static_name
, "}}%{shared:",
1569 "%{shared-libgcc:", shared_name
,
1570 "}%{!shared-libgcc:", static_name
, "}",
1577 obstack_grow (obstack
, buf
, strlen (buf
));
1580 #endif /* ENABLE_SHARED_LIBGCC */
1582 /* Initialize the specs lookup routines. */
1587 struct spec_list
*next
= (struct spec_list
*) 0;
1588 struct spec_list
*sl
= (struct spec_list
*) 0;
1592 return; /* Already initialized. */
1595 notice ("Using built-in specs.\n");
1598 extra_specs
= xcalloc (sizeof (struct spec_list
),
1599 ARRAY_SIZE (extra_specs_1
));
1601 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1603 sl
= &extra_specs
[i
];
1604 sl
->name
= extra_specs_1
[i
].name
;
1605 sl
->ptr
= extra_specs_1
[i
].ptr
;
1607 sl
->name_len
= strlen (sl
->name
);
1608 sl
->ptr_spec
= &sl
->ptr
;
1613 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1614 on ?: in file-scope variable initializations. */
1615 asm_debug
= ASM_DEBUG_SPEC
;
1617 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1619 sl
= &static_specs
[i
];
1624 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1625 /* ??? If neither -shared-libgcc nor --static-libgcc was
1626 seen, then we should be making an educated guess. Some proposed
1627 heuristics for ELF include:
1629 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1630 program will be doing dynamic loading, which will likely
1631 need the shared libgcc.
1633 (2) If "-ldl", then it's also a fair bet that we're doing
1636 (3) For each ET_DYN we're linking against (either through -lfoo
1637 or /some/path/foo.so), check to see whether it or one of
1638 its dependencies depends on a shared libgcc.
1642 If the runtime is fixed to look for program headers instead
1643 of calling __register_frame_info at all, for each object,
1644 use the shared libgcc if any EH symbol referenced.
1646 If crtstuff is fixed to not invoke __register_frame_info
1647 automatically, for each object, use the shared libgcc if
1648 any non-empty unwind section found.
1650 Doing any of this probably requires invoking an external program to
1651 do the actual object file scanning. */
1653 const char *p
= libgcc_spec
;
1656 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1657 when given the proper command line arguments. */
1660 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1662 init_gcc_specs (&obstack
,
1663 #ifdef NO_SHARED_LIBGCC_MULTILIB
1671 #ifdef USE_LIBUNWIND_EXCEPTIONS
1679 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1681 /* Ug. We don't know shared library extensions. Hope that
1682 systems that use this form don't do shared libraries. */
1683 init_gcc_specs (&obstack
,
1684 #ifdef NO_SHARED_LIBGCC_MULTILIB
1692 #ifdef USE_LIBUNWIND_EXCEPTIONS
1701 obstack_1grow (&obstack
, *p
);
1702 in_sep
= (*p
== ' ');
1707 obstack_1grow (&obstack
, '\0');
1708 libgcc_spec
= obstack_finish (&obstack
);
1711 #ifdef USE_AS_TRADITIONAL_FORMAT
1712 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1714 static const char tf
[] = "--traditional-format ";
1715 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1716 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1717 asm_spec
= obstack_finish (&obstack
);
1721 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1722 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1723 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1724 link_spec
= obstack_finish (&obstack
);
1730 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1731 removed; If the spec starts with a + then SPEC is added to the end of the
1735 set_spec (const char *name
, const char *spec
)
1737 struct spec_list
*sl
;
1738 const char *old_spec
;
1739 int name_len
= strlen (name
);
1742 /* If this is the first call, initialize the statically allocated specs. */
1745 struct spec_list
*next
= (struct spec_list
*) 0;
1746 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1748 sl
= &static_specs
[i
];
1755 /* See if the spec already exists. */
1756 for (sl
= specs
; sl
; sl
= sl
->next
)
1757 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1762 /* Not found - make it. */
1763 sl
= xmalloc (sizeof (struct spec_list
));
1764 sl
->name
= xstrdup (name
);
1765 sl
->name_len
= name_len
;
1766 sl
->ptr_spec
= &sl
->ptr
;
1768 *(sl
->ptr_spec
) = "";
1773 old_spec
= *(sl
->ptr_spec
);
1774 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1775 ? concat (old_spec
, spec
+ 1, NULL
)
1780 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1783 /* Free the old spec. */
1784 if (old_spec
&& sl
->alloc_p
)
1785 free ((void *) old_spec
);
1790 /* Accumulate a command (program name and args), and run it. */
1792 /* Vector of pointers to arguments in the current line of specifications. */
1794 static const char **argbuf
;
1796 /* Number of elements allocated in argbuf. */
1798 static int argbuf_length
;
1800 /* Number of elements in argbuf currently in use (containing args). */
1802 static int argbuf_index
;
1804 /* Position in the argbuf array containing the name of the output file
1805 (the value associated with the "-o" flag). */
1807 static int have_o_argbuf_index
= 0;
1809 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1810 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1813 static struct temp_name
{
1814 const char *suffix
; /* suffix associated with the code. */
1815 int length
; /* strlen (suffix). */
1816 int unique
; /* Indicates whether %g or %u/%U was used. */
1817 const char *filename
; /* associated filename. */
1818 int filename_length
; /* strlen (filename). */
1819 struct temp_name
*next
;
1822 /* Number of commands executed so far. */
1824 static int execution_count
;
1826 /* Number of commands that exited with a signal. */
1828 static int signal_count
;
1830 /* Name with which this program was invoked. */
1832 static const char *programname
;
1834 /* Allocate the argument vector. */
1840 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1843 /* Clear out the vector of arguments (after a command is executed). */
1851 /* Add one argument to the vector at the end.
1852 This is done when a space is seen or at the end of the line.
1853 If DELETE_ALWAYS is nonzero, the arg is a filename
1854 and the file should be deleted eventually.
1855 If DELETE_FAILURE is nonzero, the arg is a filename
1856 and the file should be deleted if this compilation fails. */
1859 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1861 if (argbuf_index
+ 1 == argbuf_length
)
1862 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1864 argbuf
[argbuf_index
++] = arg
;
1865 argbuf
[argbuf_index
] = 0;
1867 if (strcmp (arg
, "-o") == 0)
1868 have_o_argbuf_index
= argbuf_index
;
1869 if (delete_always
|| delete_failure
)
1870 record_temp_file (arg
, delete_always
, delete_failure
);
1873 /* Load specs from a file name named FILENAME, replacing occurrences of
1874 various different types of line-endings, \r\n, \n\r and just \r, with
1878 load_specs (const char *filename
)
1882 struct stat statbuf
;
1889 notice ("Reading specs from %s\n", filename
);
1891 /* Open and stat the file. */
1892 desc
= open (filename
, O_RDONLY
, 0);
1894 pfatal_with_name (filename
);
1895 if (stat (filename
, &statbuf
) < 0)
1896 pfatal_with_name (filename
);
1898 /* Read contents of file into BUFFER. */
1899 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1900 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1902 pfatal_with_name (filename
);
1903 buffer
[readlen
] = 0;
1906 specs
= xmalloc (readlen
+ 1);
1908 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1914 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1916 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1930 /* Read compilation specs from a file named FILENAME,
1931 replacing the default ones.
1933 A suffix which starts with `*' is a definition for
1934 one of the machine-specific sub-specs. The "suffix" should be
1935 *asm, *cc1, *cpp, *link, *startfile, etc.
1936 The corresponding spec is stored in asm_spec, etc.,
1937 rather than in the `compilers' vector.
1939 Anything invalid in the file is a fatal error. */
1942 read_specs (const char *filename
, int main_p
)
1947 buffer
= load_specs (filename
);
1949 /* Scan BUFFER for specs, putting them in the vector. */
1955 char *in
, *out
, *p1
, *p2
, *p3
;
1957 /* Advance P in BUFFER to the next nonblank nocomment line. */
1958 p
= skip_whitespace (p
);
1962 /* Is this a special command that starts with '%'? */
1963 /* Don't allow this for the main specs file, since it would
1964 encourage people to overwrite it. */
1965 if (*p
== '%' && !main_p
)
1968 while (*p
&& *p
!= '\n')
1974 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1975 && (p1
[sizeof "%include" - 1] == ' '
1976 || p1
[sizeof "%include" - 1] == '\t'))
1980 p1
+= sizeof ("%include");
1981 while (*p1
== ' ' || *p1
== '\t')
1984 if (*p1
++ != '<' || p
[-2] != '>')
1985 fatal ("specs %%include syntax malformed after %ld characters",
1986 (long) (p1
- buffer
+ 1));
1989 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1990 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1993 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1994 && (p1
[sizeof "%include_noerr" - 1] == ' '
1995 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1999 p1
+= sizeof "%include_noerr";
2000 while (*p1
== ' ' || *p1
== '\t')
2003 if (*p1
++ != '<' || p
[-2] != '>')
2004 fatal ("specs %%include syntax malformed after %ld characters",
2005 (long) (p1
- buffer
+ 1));
2008 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
2010 read_specs (new_filename
, FALSE
);
2011 else if (verbose_flag
)
2012 notice ("could not find specs file %s\n", p1
);
2015 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2016 && (p1
[sizeof "%rename" - 1] == ' '
2017 || p1
[sizeof "%rename" - 1] == '\t'))
2020 struct spec_list
*sl
;
2021 struct spec_list
*newsl
;
2023 /* Get original name. */
2024 p1
+= sizeof "%rename";
2025 while (*p1
== ' ' || *p1
== '\t')
2028 if (! ISALPHA ((unsigned char) *p1
))
2029 fatal ("specs %%rename syntax malformed after %ld characters",
2030 (long) (p1
- buffer
));
2033 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2036 if (*p2
!= ' ' && *p2
!= '\t')
2037 fatal ("specs %%rename syntax malformed after %ld characters",
2038 (long) (p2
- buffer
));
2042 while (*p2
== ' ' || *p2
== '\t')
2045 if (! ISALPHA ((unsigned char) *p2
))
2046 fatal ("specs %%rename syntax malformed after %ld characters",
2047 (long) (p2
- buffer
));
2049 /* Get new spec name. */
2051 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2055 fatal ("specs %%rename syntax malformed after %ld characters",
2056 (long) (p3
- buffer
));
2059 for (sl
= specs
; sl
; sl
= sl
->next
)
2060 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2064 fatal ("specs %s spec was not found to be renamed", p1
);
2066 if (strcmp (p1
, p2
) == 0)
2069 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2070 if (strcmp (newsl
->name
, p2
) == 0)
2071 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2076 notice ("rename spec %s to %s\n", p1
, p2
);
2078 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2082 set_spec (p2
, *(sl
->ptr_spec
));
2084 free ((void *) *(sl
->ptr_spec
));
2086 *(sl
->ptr_spec
) = "";
2091 fatal ("specs unknown %% command after %ld characters",
2092 (long) (p1
- buffer
));
2095 /* Find the colon that should end the suffix. */
2097 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2100 /* The colon shouldn't be missing. */
2102 fatal ("specs file malformed after %ld characters",
2103 (long) (p1
- buffer
));
2105 /* Skip back over trailing whitespace. */
2107 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2110 /* Copy the suffix to a string. */
2111 suffix
= save_string (p
, p2
- p
);
2112 /* Find the next line. */
2113 p
= skip_whitespace (p1
+ 1);
2115 fatal ("specs file malformed after %ld characters",
2116 (long) (p
- buffer
));
2119 /* Find next blank line or end of string. */
2120 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2123 /* Specs end at the blank line and do not include the newline. */
2124 spec
= save_string (p
, p1
- p
);
2127 /* Delete backslash-newline sequences from the spec. */
2132 if (in
[0] == '\\' && in
[1] == '\n')
2134 else if (in
[0] == '#')
2135 while (*in
&& *in
!= '\n')
2143 if (suffix
[0] == '*')
2145 if (! strcmp (suffix
, "*link_command"))
2146 link_command_spec
= spec
;
2148 set_spec (suffix
+ 1, spec
);
2152 /* Add this pair to the vector. */
2154 = xrealloc (compilers
,
2155 (n_compilers
+ 2) * sizeof (struct compiler
));
2157 compilers
[n_compilers
].suffix
= suffix
;
2158 compilers
[n_compilers
].spec
= spec
;
2160 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2164 link_command_spec
= spec
;
2167 if (link_command_spec
== 0)
2168 fatal ("spec file has no spec for linking");
2171 /* Record the names of temporary files we tell compilers to write,
2172 and delete them at the end of the run. */
2174 /* This is the common prefix we use to make temp file names.
2175 It is chosen once for each run of this program.
2176 It is substituted into a spec by %g or %j.
2177 Thus, all temp file names contain this prefix.
2178 In practice, all temp file names start with this prefix.
2180 This prefix comes from the envvar TMPDIR if it is defined;
2181 otherwise, from the P_tmpdir macro if that is defined;
2182 otherwise, in /usr/tmp or /tmp;
2183 or finally the current directory if all else fails. */
2185 static const char *temp_filename
;
2187 /* Length of the prefix. */
2189 static int temp_filename_length
;
2191 /* Define the list of temporary files to delete. */
2196 struct temp_file
*next
;
2199 /* Queue of files to delete on success or failure of compilation. */
2200 static struct temp_file
*always_delete_queue
;
2201 /* Queue of files to delete on failure of compilation. */
2202 static struct temp_file
*failure_delete_queue
;
2204 /* Record FILENAME as a file to be deleted automatically.
2205 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2206 otherwise delete it in any case.
2207 FAIL_DELETE nonzero means delete it if a compilation step fails;
2208 otherwise delete it in any case. */
2211 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2213 char *const name
= xstrdup (filename
);
2217 struct temp_file
*temp
;
2218 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2219 if (! strcmp (name
, temp
->name
))
2222 temp
= xmalloc (sizeof (struct temp_file
));
2223 temp
->next
= always_delete_queue
;
2225 always_delete_queue
= temp
;
2232 struct temp_file
*temp
;
2233 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2234 if (! strcmp (name
, temp
->name
))
2237 temp
= xmalloc (sizeof (struct temp_file
));
2238 temp
->next
= failure_delete_queue
;
2240 failure_delete_queue
= temp
;
2246 /* Delete all the temporary files whose names we previously recorded. */
2248 #ifndef DELETE_IF_ORDINARY
2249 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2252 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2253 if (unlink (NAME) < 0) \
2255 perror_with_name (NAME); \
2260 delete_if_ordinary (const char *name
)
2266 printf ("Delete %s? (y or n) ", name
);
2270 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2273 if (i
== 'y' || i
== 'Y')
2275 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2279 delete_temp_files (void)
2281 struct temp_file
*temp
;
2283 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2284 delete_if_ordinary (temp
->name
);
2285 always_delete_queue
= 0;
2288 /* Delete all the files to be deleted on error. */
2291 delete_failure_queue (void)
2293 struct temp_file
*temp
;
2295 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2296 delete_if_ordinary (temp
->name
);
2300 clear_failure_queue (void)
2302 failure_delete_queue
= 0;
2305 /* Build a list of search directories from PATHS.
2306 PREFIX is a string to prepend to the list.
2307 If CHECK_DIR_P is nonzero we ensure the directory exists.
2308 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2309 It is also used by the --print-search-dirs flag. */
2312 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2315 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2317 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2318 int first_time
= TRUE
;
2319 struct prefix_list
*pprefix
;
2321 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2322 obstack_1grow (&collect_obstack
, '=');
2324 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2326 int len
= strlen (pprefix
->prefix
);
2330 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2333 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2336 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2337 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2340 if (just_machine_suffix
2341 && pprefix
->require_machine_suffix
== 2
2343 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2346 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2349 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2350 obstack_grow (&collect_obstack
, just_machine_suffix
,
2354 if (! pprefix
->require_machine_suffix
)
2357 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2360 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2364 obstack_1grow (&collect_obstack
, '\0');
2365 return obstack_finish (&collect_obstack
);
2368 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2372 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2374 putenv (build_search_list (paths
, env_var
, 1));
2377 /* Check whether NAME can be accessed in MODE. This is like access,
2378 except that it never considers directories to be executable. */
2381 access_check (const char *name
, int mode
)
2387 if (stat (name
, &st
) < 0
2388 || S_ISDIR (st
.st_mode
))
2392 return access (name
, mode
);
2395 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2396 access to check permissions.
2397 Return 0 if not found, otherwise return its name, allocated with malloc. */
2400 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2404 const char *const file_suffix
=
2405 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2406 struct prefix_list
*pl
;
2407 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2408 const char *multilib_name
, *multilib_os_name
;
2410 #ifdef DEFAULT_ASSEMBLER
2411 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2412 return xstrdup (DEFAULT_ASSEMBLER
);
2415 #ifdef DEFAULT_LINKER
2416 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2417 return xstrdup (DEFAULT_LINKER
);
2421 len
+= strlen (machine_suffix
);
2423 multilib_name
= name
;
2424 multilib_os_name
= name
;
2425 if (multilib
&& multilib_os_dir
)
2427 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2428 int len2
= strlen (multilib_os_dir
) + 1;
2430 len
+= len1
> len2
? len1
: len2
;
2432 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2434 if (strcmp (multilib_os_dir
, ".") != 0)
2435 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2439 temp
= xmalloc (len
);
2441 /* Determine the filename to execute (special case for absolute paths). */
2443 if (IS_ABSOLUTE_PATH (name
))
2445 if (access (name
, mode
) == 0)
2447 strcpy (temp
, name
);
2452 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2454 const char *this_name
2455 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2459 /* Some systems have a suffix for executable files.
2460 So try appending that first. */
2461 if (file_suffix
[0] != 0)
2463 strcpy (temp
, pl
->prefix
);
2464 strcat (temp
, machine_suffix
);
2465 strcat (temp
, multilib_name
);
2466 strcat (temp
, file_suffix
);
2467 if (access_check (temp
, mode
) == 0)
2469 if (pl
->used_flag_ptr
!= 0)
2470 *pl
->used_flag_ptr
= 1;
2475 /* Now try just the multilib_name. */
2476 strcpy (temp
, pl
->prefix
);
2477 strcat (temp
, machine_suffix
);
2478 strcat (temp
, multilib_name
);
2479 if (access_check (temp
, mode
) == 0)
2481 if (pl
->used_flag_ptr
!= 0)
2482 *pl
->used_flag_ptr
= 1;
2487 /* Certain prefixes are tried with just the machine type,
2488 not the version. This is used for finding as, ld, etc. */
2489 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2491 /* Some systems have a suffix for executable files.
2492 So try appending that first. */
2493 if (file_suffix
[0] != 0)
2495 strcpy (temp
, pl
->prefix
);
2496 strcat (temp
, just_machine_suffix
);
2497 strcat (temp
, multilib_name
);
2498 strcat (temp
, file_suffix
);
2499 if (access_check (temp
, mode
) == 0)
2501 if (pl
->used_flag_ptr
!= 0)
2502 *pl
->used_flag_ptr
= 1;
2507 strcpy (temp
, pl
->prefix
);
2508 strcat (temp
, just_machine_suffix
);
2509 strcat (temp
, multilib_name
);
2510 if (access_check (temp
, mode
) == 0)
2512 if (pl
->used_flag_ptr
!= 0)
2513 *pl
->used_flag_ptr
= 1;
2518 /* Certain prefixes can't be used without the machine suffix
2519 when the machine or version is explicitly specified. */
2520 if (! pl
->require_machine_suffix
)
2522 /* Some systems have a suffix for executable files.
2523 So try appending that first. */
2524 if (file_suffix
[0] != 0)
2526 strcpy (temp
, pl
->prefix
);
2527 strcat (temp
, this_name
);
2528 strcat (temp
, file_suffix
);
2529 if (access_check (temp
, mode
) == 0)
2531 if (pl
->used_flag_ptr
!= 0)
2532 *pl
->used_flag_ptr
= 1;
2537 strcpy (temp
, pl
->prefix
);
2538 strcat (temp
, this_name
);
2539 if (access_check (temp
, mode
) == 0)
2541 if (pl
->used_flag_ptr
!= 0)
2542 *pl
->used_flag_ptr
= 1;
2552 /* Ranking of prefixes in the sort list. -B prefixes are put before
2555 enum path_prefix_priority
2557 PREFIX_PRIORITY_B_OPT
,
2558 PREFIX_PRIORITY_LAST
2561 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2562 order according to PRIORITY. Within each PRIORITY, new entries are
2565 If WARN is nonzero, we will warn if no file is found
2566 through this prefix. WARN should point to an int
2567 which will be set to 1 if this entry is used.
2569 COMPONENT is the value to be passed to update_path.
2571 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2572 the complete value of machine_suffix.
2573 2 means try both machine_suffix and just_machine_suffix. */
2576 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2577 const char *component
, /* enum prefix_priority */ int priority
,
2578 int require_machine_suffix
, int *warn
, int os_multilib
)
2580 struct prefix_list
*pl
, **prev
;
2583 for (prev
= &pprefix
->plist
;
2584 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2585 prev
= &(*prev
)->next
)
2588 /* Keep track of the longest prefix. */
2590 prefix
= update_path (prefix
, component
);
2591 len
= strlen (prefix
);
2592 if (len
> pprefix
->max_len
)
2593 pprefix
->max_len
= len
;
2595 pl
= xmalloc (sizeof (struct prefix_list
));
2596 pl
->prefix
= prefix
;
2597 pl
->require_machine_suffix
= require_machine_suffix
;
2598 pl
->used_flag_ptr
= warn
;
2599 pl
->priority
= priority
;
2600 pl
->os_multilib
= os_multilib
;
2604 /* Insert after PREV. */
2609 /* Same as add_prefix, but prepending target_system_root to prefix. */
2611 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2612 const char *component
,
2613 /* enum prefix_priority */ int priority
,
2614 int require_machine_suffix
, int *warn
, int os_multilib
)
2616 if (!IS_ABSOLUTE_PATH (prefix
))
2619 if (target_system_root
)
2621 if (target_sysroot_suffix
)
2622 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2623 prefix
= concat (target_system_root
, prefix
, NULL
);
2625 /* We have to override this because GCC's notion of sysroot
2626 moves along with GCC. */
2630 add_prefix (pprefix
, prefix
, component
, priority
,
2631 require_machine_suffix
, warn
, os_multilib
);
2634 /* Execute the command specified by the arguments on the current line of spec.
2635 When using pipes, this includes several piped-together commands
2636 with `|' between them.
2638 Return 0 if successful, -1 if failed. */
2644 int n_commands
; /* # of command. */
2648 const char *prog
; /* program name. */
2649 const char **argv
; /* vector of args. */
2650 int pid
; /* pid of process for this command. */
2653 struct command
*commands
; /* each command buffer with above info. */
2655 if (processing_spec_function
)
2658 /* Count # of piped commands. */
2659 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2660 if (strcmp (argbuf
[i
], "|") == 0)
2663 /* Get storage for each command. */
2664 commands
= alloca (n_commands
* sizeof (struct command
));
2666 /* Split argbuf into its separate piped processes,
2667 and record info about each one.
2668 Also search for the programs that are to be run. */
2670 commands
[0].prog
= argbuf
[0]; /* first command. */
2671 commands
[0].argv
= &argbuf
[0];
2672 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2675 commands
[0].argv
[0] = string
;
2677 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2678 if (strcmp (argbuf
[i
], "|") == 0)
2679 { /* each command. */
2680 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2681 fatal ("-pipe not supported");
2683 argbuf
[i
] = 0; /* termination of command args. */
2684 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2685 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2686 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2689 commands
[n_commands
].argv
[0] = string
;
2693 argbuf
[argbuf_index
] = 0;
2695 /* If -v, print what we are about to do, and maybe query. */
2699 /* For help listings, put a blank line between sub-processes. */
2700 if (print_help_list
)
2701 fputc ('\n', stderr
);
2703 /* Print each piped command as a separate line. */
2704 for (i
= 0; i
< n_commands
; i
++)
2706 const char *const *j
;
2708 if (verbose_only_flag
)
2710 for (j
= commands
[i
].argv
; *j
; j
++)
2713 fprintf (stderr
, " \"");
2714 for (p
= *j
; *p
; ++p
)
2716 if (*p
== '"' || *p
== '\\' || *p
== '$')
2717 fputc ('\\', stderr
);
2720 fputc ('"', stderr
);
2724 for (j
= commands
[i
].argv
; *j
; j
++)
2725 fprintf (stderr
, " %s", *j
);
2727 /* Print a pipe symbol after all but the last command. */
2728 if (i
+ 1 != n_commands
)
2729 fprintf (stderr
, " |");
2730 fprintf (stderr
, "\n");
2733 if (verbose_only_flag
!= 0)
2735 /* verbose_only_flag should act as if the spec was
2736 executed, so increment execution_count before
2737 returning. This prevents spurious warnings about
2738 unused linker input files, etc. */
2743 notice ("\nGo ahead? (y or n) ");
2747 while (getchar () != '\n')
2750 if (i
!= 'y' && i
!= 'Y')
2755 #ifdef ENABLE_VALGRIND_CHECKING
2756 /* Run the each command through valgrind. To simplify prepending the
2757 path to valgrind and the option "-q" (for quiet operation unless
2758 something triggers), we allocate a separate argv array. */
2760 for (i
= 0; i
< n_commands
; i
++)
2766 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2769 argv
= alloca ((argc
+ 3) * sizeof (char *));
2771 argv
[0] = VALGRIND_PATH
;
2773 for (j
= 2; j
< argc
+ 2; j
++)
2774 argv
[j
] = commands
[i
].argv
[j
- 2];
2777 commands
[i
].argv
= argv
;
2778 commands
[i
].prog
= argv
[0];
2782 /* Run each piped subprocess. */
2784 for (i
= 0; i
< n_commands
; i
++)
2786 char *errmsg_fmt
, *errmsg_arg
;
2787 const char *string
= commands
[i
].argv
[0];
2789 /* For some bizarre reason, the second argument of execvp() is
2790 char *const *, not const char *const *. */
2791 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2792 programname
, temp_filename
,
2793 &errmsg_fmt
, &errmsg_arg
,
2794 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2795 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2796 | (string
== commands
[i
].prog
2797 ? PEXECUTE_SEARCH
: 0)
2798 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2800 if (commands
[i
].pid
== -1)
2801 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2803 if (string
!= commands
[i
].prog
)
2804 free ((void *) string
);
2809 /* Wait for all the subprocesses to finish.
2810 We don't care what order they finish in;
2811 we know that N_COMMANDS waits will get them all.
2812 Ignore subprocesses that we don't know about,
2813 since they can be spawned by the process that exec'ed us. */
2817 #ifdef HAVE_GETRUSAGE
2819 double ut
= 0.0, st
= 0.0;
2822 for (i
= 0; i
< n_commands
;)
2828 pid
= pwait (commands
[i
].pid
, &status
, 0);
2832 #ifdef HAVE_GETRUSAGE
2835 /* getrusage returns the total resource usage of all children
2836 up to now. Copy the previous values into prus, get the
2837 current statistics, then take the difference. */
2840 getrusage (RUSAGE_CHILDREN
, &rus
);
2841 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2842 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2843 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2845 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2846 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2847 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2851 for (j
= 0; j
< n_commands
; j
++)
2852 if (commands
[j
].pid
== pid
)
2855 if (WIFSIGNALED (status
))
2858 /* SIGPIPE is a special case. It happens in -pipe mode
2859 when the compiler dies before the preprocessor is
2860 done, or the assembler dies before the compiler is
2861 done. There's generally been an error already, and
2862 this is just fallout. So don't generate another error
2863 unless we would otherwise have succeeded. */
2864 if (WTERMSIG (status
) == SIGPIPE
2865 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2870 Internal error: %s (program %s)\n\
2871 Please submit a full bug report.\n\
2872 See %s for instructions.",
2873 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2878 else if (WIFEXITED (status
)
2879 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2881 if (WEXITSTATUS (status
) > greatest_status
)
2882 greatest_status
= WEXITSTATUS (status
);
2885 #ifdef HAVE_GETRUSAGE
2886 if (report_times
&& ut
+ st
!= 0)
2887 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2896 /* Find all the switches given to us
2897 and make a vector describing them.
2898 The elements of the vector are strings, one per switch given.
2899 If a switch uses following arguments, then the `part1' field
2900 is the switch itself and the `args' field
2901 is a null-terminated vector containing the following arguments.
2902 The `live_cond' field is:
2904 1 if the switch is true in a conditional spec,
2905 -1 if false (overridden by a later switch)
2906 -2 if this switch should be ignored (used in %<S)
2907 The `validated' field is nonzero if any spec has looked at this switch;
2908 if it remains zero at the end of the run, it must be meaningless. */
2911 #define SWITCH_FALSE -1
2912 #define SWITCH_IGNORE -2
2913 #define SWITCH_LIVE 1
2920 unsigned char validated
;
2921 unsigned char ordering
;
2924 static struct switchstr
*switches
;
2926 static int n_switches
;
2931 const char *language
;
2932 struct compiler
*incompiler
;
2937 /* Also a vector of input files specified. */
2939 static struct infile
*infiles
;
2943 /* True if multiple input files are being compiled to a single
2946 static bool combine_inputs
;
2948 /* This counts the number of libraries added by lang_specific_driver, so that
2949 we can tell if there were any user supplied any files or libraries. */
2951 static int added_libraries
;
2953 /* And a vector of corresponding output files is made up later. */
2955 const char **outfiles
;
2957 /* Used to track if none of the -B paths are used. */
2960 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2961 static int *warn_std_ptr
= 0;
2963 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2965 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2966 is true if we should look for an executable suffix. DO_OBJ
2967 is true if we should look for an object suffix. */
2970 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2971 int do_obj ATTRIBUTE_UNUSED
)
2973 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2981 len
= strlen (name
);
2983 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2984 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2985 if (do_obj
&& len
> 2
2986 && name
[len
- 2] == '.'
2987 && name
[len
- 1] == 'o')
2989 obstack_grow (&obstack
, name
, len
- 2);
2990 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2991 name
= obstack_finish (&obstack
);
2995 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2996 /* If there is no filetype, make it the executable suffix (which includes
2997 the "."). But don't get confused if we have just "-o". */
2998 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3001 for (i
= len
- 1; i
>= 0; i
--)
3002 if (IS_DIR_SEPARATOR (name
[i
]))
3005 for (i
++; i
< len
; i
++)
3009 obstack_grow (&obstack
, name
, len
);
3010 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3011 strlen (TARGET_EXECUTABLE_SUFFIX
));
3012 name
= obstack_finish (&obstack
);
3019 /* Display the command line switches accepted by gcc. */
3023 printf (_("Usage: %s [options] file...\n"), programname
);
3024 fputs (_("Options:\n"), stdout
);
3026 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3027 fputs (_(" --help Display this information\n"), stdout
);
3028 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3030 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3031 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3032 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3033 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3034 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3035 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3036 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3037 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3038 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3040 -print-multi-lib Display the mapping between command line options and\n\
3041 multiple library search directories\n"), stdout
);
3042 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3043 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3044 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3045 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3046 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3047 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3048 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3049 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3050 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3051 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3052 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3053 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3054 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3055 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3056 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3057 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3058 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3059 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3060 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3061 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3062 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3063 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3065 -x <language> Specify the language of the following input files\n\
3066 Permissible languages include: c c++ assembler none\n\
3067 'none' means revert to the default behavior of\n\
3068 guessing the language based on the file's extension\n\
3072 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3073 passed on to the various sub-processes invoked by %s. In order to pass\n\
3074 other options on to these processes the -W<letter> options must be used.\n\
3077 /* The rest of the options are displayed by invocations of the various
3082 add_preprocessor_option (const char *option
, int len
)
3084 n_preprocessor_options
++;
3086 if (! preprocessor_options
)
3087 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3089 preprocessor_options
= xrealloc (preprocessor_options
,
3090 n_preprocessor_options
* sizeof (char *));
3092 preprocessor_options
[n_preprocessor_options
- 1] =
3093 save_string (option
, len
);
3097 add_assembler_option (const char *option
, int len
)
3099 n_assembler_options
++;
3101 if (! assembler_options
)
3102 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3104 assembler_options
= xrealloc (assembler_options
,
3105 n_assembler_options
* sizeof (char *));
3107 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3111 add_linker_option (const char *option
, int len
)
3115 if (! linker_options
)
3116 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3118 linker_options
= xrealloc (linker_options
,
3119 n_linker_options
* sizeof (char *));
3121 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3124 /* Create the vector `switches' and its contents.
3125 Store its length in `n_switches'. */
3128 process_command (int argc
, const char **argv
)
3133 const char *spec_lang
= 0;
3134 int last_language_n_infiles
;
3136 int lang_n_infiles
= 0;
3137 #ifdef MODIFY_TARGET_NAME
3138 int is_modify_target_name
;
3142 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3146 added_libraries
= 0;
3148 /* Figure compiler version from version string. */
3150 compiler_version
= temp1
= xstrdup (version_string
);
3152 for (; *temp1
; ++temp1
)
3161 /* If there is a -V or -b option (or both), process it now, before
3162 trying to interpret the rest of the command line. */
3163 if (argc
> 1 && argv
[1][0] == '-'
3164 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3166 const char *new_version
= DEFAULT_TARGET_VERSION
;
3167 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3168 const char *progname
= argv
[0];
3173 while (argc
> 1 && argv
[1][0] == '-'
3174 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3176 char opt
= argv
[1][1];
3178 if (argv
[1][2] != '\0')
3191 fatal ("`-%c' option must have argument", opt
);
3198 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3199 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3201 new_argv0
= xmemdup (progname
, baselen
,
3202 baselen
+ concat_length (new_version
, new_machine
,
3203 "-gcc-", NULL
) + 1);
3204 strcpy (new_argv0
+ baselen
, new_machine
);
3205 strcat (new_argv0
, "-gcc-");
3206 strcat (new_argv0
, new_version
);
3208 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3209 (argc
+ 1) * sizeof (argv
[0]));
3210 new_argv
[0] = new_argv0
;
3212 execvp (new_argv0
, new_argv
);
3213 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3216 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3217 see if we can create it from the pathname specified in argv[0]. */
3219 gcc_libexec_prefix
= standard_libexec_prefix
;
3221 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3222 if (!gcc_exec_prefix
)
3224 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3225 standard_exec_prefix
);
3226 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3227 standard_bindir_prefix
,
3228 standard_libexec_prefix
);
3229 if (gcc_exec_prefix
)
3230 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3233 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3234 standard_exec_prefix
,
3235 standard_libexec_prefix
);
3239 if (gcc_exec_prefix
)
3241 int len
= strlen (gcc_exec_prefix
);
3243 if (len
> (int) sizeof ("/lib/gcc/") - 1
3244 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3246 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3247 if (IS_DIR_SEPARATOR (*temp
)
3248 && strncmp (temp
+ 1, "lib", 3) == 0
3249 && IS_DIR_SEPARATOR (temp
[4])
3250 && strncmp (temp
+ 5, "gcc", 3) == 0)
3251 len
-= sizeof ("/lib/gcc/") - 1;
3254 set_std_prefix (gcc_exec_prefix
, len
);
3255 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3256 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3257 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3258 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3261 /* COMPILER_PATH and LIBRARY_PATH have values
3262 that are lists of directory names with colons. */
3264 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3267 const char *startp
, *endp
;
3268 char *nstore
= alloca (strlen (temp
) + 3);
3270 startp
= endp
= temp
;
3273 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3275 strncpy (nstore
, startp
, endp
- startp
);
3277 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3278 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3280 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3281 nstore
[endp
- startp
+ 1] = 0;
3284 nstore
[endp
- startp
] = 0;
3285 add_prefix (&exec_prefixes
, nstore
, 0,
3286 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3287 add_prefix (&include_prefixes
,
3288 concat (nstore
, "include", NULL
),
3289 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3292 endp
= startp
= endp
+ 1;
3299 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3300 if (temp
&& *cross_compile
== '0')
3302 const char *startp
, *endp
;
3303 char *nstore
= alloca (strlen (temp
) + 3);
3305 startp
= endp
= temp
;
3308 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3310 strncpy (nstore
, startp
, endp
- startp
);
3312 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3313 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3315 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3316 nstore
[endp
- startp
+ 1] = 0;
3319 nstore
[endp
- startp
] = 0;
3320 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3321 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3324 endp
= startp
= endp
+ 1;
3331 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3332 GET_ENVIRONMENT (temp
, "LPATH");
3333 if (temp
&& *cross_compile
== '0')
3335 const char *startp
, *endp
;
3336 char *nstore
= alloca (strlen (temp
) + 3);
3338 startp
= endp
= temp
;
3341 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3343 strncpy (nstore
, startp
, endp
- startp
);
3345 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3346 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3348 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3349 nstore
[endp
- startp
+ 1] = 0;
3352 nstore
[endp
- startp
] = 0;
3353 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3354 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3357 endp
= startp
= endp
+ 1;
3364 /* Convert new-style -- options to old-style. */
3365 translate_options (&argc
, (const char *const **) &argv
);
3367 /* Do language-specific adjustment/addition of flags. */
3368 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3370 /* Scan argv twice. Here, the first time, just count how many switches
3371 there will be in their vector, and how many input files in theirs.
3372 Here we also parse the switches that cc itself uses (e.g. -v). */
3374 for (i
= 1; i
< argc
; i
++)
3376 if (! strcmp (argv
[i
], "-dumpspecs"))
3378 struct spec_list
*sl
;
3380 for (sl
= specs
; sl
; sl
= sl
->next
)
3381 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3382 if (link_command_spec
)
3383 printf ("*link_command:\n%s\n\n", link_command_spec
);
3386 else if (! strcmp (argv
[i
], "-dumpversion"))
3388 printf ("%s\n", spec_version
);
3391 else if (! strcmp (argv
[i
], "-dumpmachine"))
3393 printf ("%s\n", spec_machine
);
3396 else if (strcmp (argv
[i
], "-fversion") == 0)
3398 /* translate_options () has turned --version into -fversion. */
3399 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3400 printf ("Copyright %s 2004 Free Software Foundation, Inc.\n",
3402 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3403 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3407 else if (strcmp (argv
[i
], "-fhelp") == 0)
3409 /* translate_options () has turned --help into -fhelp. */
3410 print_help_list
= 1;
3412 /* We will be passing a dummy file on to the sub-processes. */
3416 /* CPP driver cannot obtain switch from cc1_options. */
3418 add_preprocessor_option ("--help", 6);
3419 add_assembler_option ("--help", 6);
3420 add_linker_option ("--help", 6);
3422 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3424 /* translate_options() has turned --target-help into -ftarget-help. */
3425 target_help_flag
= 1;
3427 /* We will be passing a dummy file on to the sub-processes. */
3431 /* CPP driver cannot obtain switch from cc1_options. */
3433 add_preprocessor_option ("--target-help", 13);
3434 add_assembler_option ("--target-help", 13);
3435 add_linker_option ("--target-help", 13);
3437 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3439 pass_exit_codes
= 1;
3442 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3443 print_search_dirs
= 1;
3444 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3445 print_file_name
= "libgcc.a";
3446 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3447 print_file_name
= argv
[i
] + 17;
3448 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3449 print_prog_name
= argv
[i
] + 17;
3450 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3451 print_multi_lib
= 1;
3452 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3453 print_multi_directory
= 1;
3454 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3455 print_multi_os_directory
= 1;
3456 else if (! strncmp (argv
[i
], "-Wa,", 4))
3459 /* Pass the rest of this option to the assembler. */
3461 /* Split the argument at commas. */
3463 for (j
= 4; argv
[i
][j
]; j
++)
3464 if (argv
[i
][j
] == ',')
3466 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3470 /* Record the part after the last comma. */
3471 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3473 else if (! strncmp (argv
[i
], "-Wp,", 4))
3476 /* Pass the rest of this option to the preprocessor. */
3478 /* Split the argument at commas. */
3480 for (j
= 4; argv
[i
][j
]; j
++)
3481 if (argv
[i
][j
] == ',')
3483 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3487 /* Record the part after the last comma. */
3488 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3490 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3491 /* The +e options to the C++ front-end. */
3493 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3496 /* Split the argument at commas. */
3497 for (j
= 3; argv
[i
][j
]; j
++)
3498 n_infiles
+= (argv
[i
][j
] == ',');
3500 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3503 fatal ("argument to `-Xlinker' is missing");
3508 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3511 fatal ("argument to `-Xpreprocessor' is missing");
3513 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3515 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3518 fatal ("argument to `-Xassembler' is missing");
3520 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3522 else if (strcmp (argv
[i
], "-l") == 0)
3525 fatal ("argument to `-l' is missing");
3530 else if (strncmp (argv
[i
], "-l", 2) == 0)
3532 else if (strcmp (argv
[i
], "-save-temps") == 0)
3534 save_temps_flag
= 1;
3537 else if (strcmp (argv
[i
], "-combine") == 0)
3542 else if (strcmp (argv
[i
], "-specs") == 0)
3544 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3546 fatal ("argument to `-specs' is missing");
3548 user
->next
= (struct user_specs
*) 0;
3549 user
->filename
= argv
[i
];
3550 if (user_specs_tail
)
3551 user_specs_tail
->next
= user
;
3553 user_specs_head
= user
;
3554 user_specs_tail
= user
;
3556 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3558 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3559 if (strlen (argv
[i
]) == 7)
3560 fatal ("argument to `-specs=' is missing");
3562 user
->next
= (struct user_specs
*) 0;
3563 user
->filename
= argv
[i
] + 7;
3564 if (user_specs_tail
)
3565 user_specs_tail
->next
= user
;
3567 user_specs_head
= user
;
3568 user_specs_tail
= user
;
3570 else if (strcmp (argv
[i
], "-time") == 0)
3572 else if (strcmp (argv
[i
], "-pipe") == 0)
3574 /* -pipe has to go into the switches array as well as
3579 else if (strcmp (argv
[i
], "-###") == 0)
3581 /* This is similar to -v except that there is no execution
3582 of the commands and the echoed arguments are quoted. It
3583 is intended for use in shell scripts to capture the
3584 driver-generated command line. */
3585 verbose_only_flag
++;
3588 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3590 const char *p
= &argv
[i
][1];
3597 fatal ("`-%c' must come at the start of the command line", c
);
3605 if (p
[1] == 0 && i
+ 1 == argc
)
3606 fatal ("argument to `-B' is missing");
3612 len
= strlen (value
);
3614 /* Catch the case where the user has forgotten to append a
3615 directory separator to the path. Note, they may be using
3616 -B to add an executable name prefix, eg "i386-elf-", in
3617 order to distinguish between multiple installations of
3618 GCC in the same directory. Hence we must check to see
3619 if appending a directory separator actually makes a
3620 valid directory name. */
3621 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3622 && is_directory (value
, "", 0))
3624 char *tmp
= xmalloc (len
+ 2);
3625 strcpy (tmp
, value
);
3626 tmp
[len
] = DIR_SEPARATOR
;
3631 /* As a kludge, if the arg is "[foo/]stageN/", just
3632 add "[foo/]include" to the include prefix. */
3635 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3636 && strncmp (value
+ len
- 7, "stage", 5) == 0
3637 && ISDIGIT (value
[len
- 2])
3638 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3641 add_prefix (&include_prefixes
, "include", NULL
,
3642 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3645 char * string
= xmalloc (len
+ 1);
3647 strncpy (string
, value
, len
- 7);
3648 strcpy (string
+ len
- 7, "include");
3649 add_prefix (&include_prefixes
, string
, NULL
,
3650 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3654 add_prefix (&exec_prefixes
, value
, NULL
,
3655 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3656 add_prefix (&startfile_prefixes
, value
, NULL
,
3657 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3658 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3659 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3664 case 'v': /* Print our subcommands and print versions. */
3666 /* If they do anything other than exactly `-v', don't set
3667 verbose_flag; rather, continue on to give the error. */
3684 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3689 /* Forward scan, just in case -S or -c is specified
3696 if (argv
[j
][0] == '-')
3698 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3704 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3705 j
+= skip
- (argv
[j
][2] != 0);
3706 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3713 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3715 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3717 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3724 #ifdef MODIFY_TARGET_NAME
3725 is_modify_target_name
= 0;
3727 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3728 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3730 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3731 + strlen (spec_machine
));
3734 int made_addition
= 0;
3736 is_modify_target_name
= 1;
3737 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3739 if (modify_target
[j
].add_del
== DELETE
3740 && (! strncmp (q
, modify_target
[j
].str
,
3741 strlen (modify_target
[j
].str
))))
3742 p
+= strlen (modify_target
[j
].str
);
3743 else if (modify_target
[j
].add_del
== ADD
3744 && ! made_addition
&& *p
== '-')
3746 for (r
= modify_target
[j
].str
; *r
!= 0; )
3754 spec_machine
= new_name
;
3757 if (is_modify_target_name
)
3763 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3764 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3765 else if (WORD_SWITCH_TAKES_ARG (p
))
3766 i
+= WORD_SWITCH_TAKES_ARG (p
);
3776 if ((save_temps_flag
|| report_times
) && use_pipes
)
3778 /* -save-temps overrides -pipe, so that temp files are produced */
3779 if (save_temps_flag
)
3780 error ("warning: -pipe ignored because -save-temps specified");
3781 /* -time overrides -pipe because we can't get correct stats when
3782 multiple children are running at once. */
3783 else if (report_times
)
3784 error ("warning: -pipe ignored because -time specified");
3789 /* Set up the search paths before we go looking for config files. */
3791 /* These come before the md prefixes so that we will find gcc's subcommands
3792 (such as cpp) rather than those of the host system. */
3793 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3794 as well as trying the machine and the version. */
3796 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3797 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3798 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3799 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3800 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3801 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3802 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3803 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3804 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3805 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3808 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3809 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3810 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3811 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3813 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3814 dir_separator_str
, NULL
);
3816 /* If tooldir is relative, base it on exec_prefixes. A relative
3817 tooldir lets us move the installed tree as a unit.
3819 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3820 directories, so that we can search both the user specified directory
3821 and the standard place. */
3823 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3825 if (gcc_exec_prefix
)
3827 char *gcc_exec_tooldir_prefix
3828 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3829 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3831 add_prefix (&exec_prefixes
,
3832 concat (gcc_exec_tooldir_prefix
, "bin",
3833 dir_separator_str
, NULL
),
3834 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3835 add_prefix (&startfile_prefixes
,
3836 concat (gcc_exec_tooldir_prefix
, "lib",
3837 dir_separator_str
, NULL
),
3838 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3841 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3842 dir_separator_str
, spec_version
,
3843 dir_separator_str
, tooldir_prefix
, NULL
);
3846 add_prefix (&exec_prefixes
,
3847 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3848 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3849 add_prefix (&startfile_prefixes
,
3850 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3851 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3853 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3854 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3855 then consider it to relocate with the rest of the GCC installation
3856 if GCC_EXEC_PREFIX is set.
3857 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3858 if (target_system_root
&& gcc_exec_prefix
)
3860 char *tmp_prefix
= make_relative_prefix (argv
[0],
3861 standard_bindir_prefix
,
3862 target_system_root
);
3863 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3865 target_system_root
= tmp_prefix
;
3866 target_system_root_changed
= 1;
3871 /* More prefixes are enabled in main, after we read the specs file
3872 and determine whether this is cross-compilation or not. */
3874 /* Then create the space for the vectors and scan again. */
3876 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3877 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3880 last_language_n_infiles
= -1;
3882 /* This, time, copy the text of each switch and store a pointer
3883 to the copy in the vector of switches.
3884 Store all the infiles in their vector. */
3886 for (i
= 1; i
< argc
; i
++)
3888 /* Just skip the switches that were handled by the preceding loop. */
3889 #ifdef MODIFY_TARGET_NAME
3890 is_modify_target_name
= 0;
3892 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3893 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3894 is_modify_target_name
= 1;
3896 if (is_modify_target_name
)
3900 if (! strncmp (argv
[i
], "-Wa,", 4))
3902 else if (! strncmp (argv
[i
], "-Wp,", 4))
3904 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3906 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3908 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3910 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3912 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3914 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3916 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3918 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3920 else if (! strcmp (argv
[i
], "-ftarget-help"))
3922 else if (! strcmp (argv
[i
], "-fhelp"))
3924 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3926 /* Compensate for the +e options to the C++ front-end;
3927 they're there simply for cfront call-compatibility. We do
3928 some magic in default_compilers to pass them down properly.
3929 Note we deliberately start at the `+' here, to avoid passing
3930 -e0 or -e1 down into the linker. */
3931 switches
[n_switches
].part1
= &argv
[i
][0];
3932 switches
[n_switches
].args
= 0;
3933 switches
[n_switches
].live_cond
= SWITCH_OK
;
3934 switches
[n_switches
].validated
= 0;
3937 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3940 /* Split the argument at commas. */
3942 for (j
= 4; argv
[i
][j
]; j
++)
3943 if (argv
[i
][j
] == ',')
3945 infiles
[n_infiles
].language
= "*";
3946 infiles
[n_infiles
++].name
3947 = save_string (argv
[i
] + prev
, j
- prev
);
3950 /* Record the part after the last comma. */
3951 infiles
[n_infiles
].language
= "*";
3952 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3954 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3956 infiles
[n_infiles
].language
= "*";
3957 infiles
[n_infiles
++].name
= argv
[++i
];
3959 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3961 infiles
[n_infiles
].language
= "*";
3962 infiles
[n_infiles
++].name
= argv
[++i
];
3964 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3966 infiles
[n_infiles
].language
= "*";
3967 infiles
[n_infiles
++].name
= argv
[++i
];
3969 else if (strcmp (argv
[i
], "-l") == 0)
3970 { /* POSIX allows separation of -l and the lib arg;
3971 canonicalize by concatenating -l with its arg */
3972 infiles
[n_infiles
].language
= "*";
3973 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3975 else if (strncmp (argv
[i
], "-l", 2) == 0)
3977 infiles
[n_infiles
].language
= "*";
3978 infiles
[n_infiles
++].name
= argv
[i
];
3980 else if (strcmp (argv
[i
], "-specs") == 0)
3982 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3984 else if (strcmp (argv
[i
], "-time") == 0)
3986 else if (strcmp (argv
[i
], "-###") == 0)
3988 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3990 const char *p
= &argv
[i
][1];
3995 if (p
[1] == 0 && i
+ 1 == argc
)
3996 fatal ("argument to `-x' is missing");
3998 spec_lang
= argv
[++i
];
4001 if (! strcmp (spec_lang
, "none"))
4002 /* Suppress the warning if -xnone comes after the last input
4003 file, because alternate command interfaces like g++ might
4004 find it useful to place -xnone after each input file. */
4007 last_language_n_infiles
= n_infiles
;
4010 switches
[n_switches
].part1
= p
;
4011 /* Deal with option arguments in separate argv elements. */
4012 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4013 || WORD_SWITCH_TAKES_ARG (p
))
4016 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4020 /* Count only the option arguments in separate argv elements. */
4021 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4023 if (i
+ n_args
>= argc
)
4024 fatal ("argument to `-%s' is missing", p
);
4025 switches
[n_switches
].args
4026 = xmalloc ((n_args
+ 1) * sizeof(const char *));
4028 switches
[n_switches
].args
[j
++] = argv
[++i
];
4029 /* Null-terminate the vector. */
4030 switches
[n_switches
].args
[j
] = 0;
4032 else if (strchr (switches_need_spaces
, c
))
4034 /* On some systems, ld cannot handle some options without
4035 a space. So split the option from its argument. */
4036 char *part1
= xmalloc (2);
4040 switches
[n_switches
].part1
= part1
;
4041 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
4042 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4043 switches
[n_switches
].args
[1] = 0;
4046 switches
[n_switches
].args
= 0;
4048 switches
[n_switches
].live_cond
= SWITCH_OK
;
4049 switches
[n_switches
].validated
= 0;
4050 switches
[n_switches
].ordering
= 0;
4051 /* These are always valid, since gcc.c itself understands them. */
4052 if (!strcmp (p
, "save-temps")
4053 || !strcmp (p
, "static-libgcc")
4054 || !strcmp (p
, "shared-libgcc")
4055 || !strcmp (p
, "pipe"))
4056 switches
[n_switches
].validated
= 1;
4059 char ch
= switches
[n_switches
].part1
[0];
4061 switches
[n_switches
].validated
= 1;
4067 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4068 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4071 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4073 perror_with_name (argv
[i
]);
4078 infiles
[n_infiles
].language
= spec_lang
;
4079 infiles
[n_infiles
++].name
= argv
[i
];
4084 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4085 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4087 /* Ensure we only invoke each subprocess once. */
4088 if (target_help_flag
|| print_help_list
)
4092 /* Create a dummy input file, so that we can pass --target-help on to
4093 the various sub-processes. */
4094 infiles
[0].language
= "c";
4095 infiles
[0].name
= "help-dummy";
4097 if (target_help_flag
)
4099 switches
[n_switches
].part1
= "--target-help";
4100 switches
[n_switches
].args
= 0;
4101 switches
[n_switches
].live_cond
= SWITCH_OK
;
4102 switches
[n_switches
].validated
= 0;
4107 if (print_help_list
)
4109 switches
[n_switches
].part1
= "--help";
4110 switches
[n_switches
].args
= 0;
4111 switches
[n_switches
].live_cond
= SWITCH_OK
;
4112 switches
[n_switches
].validated
= 0;
4118 switches
[n_switches
].part1
= 0;
4119 infiles
[n_infiles
].name
= 0;
4122 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4123 and place that in the environment. */
4126 set_collect_gcc_options (void)
4131 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4133 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4134 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4137 for (i
= 0; (int) i
< n_switches
; i
++)
4139 const char *const *args
;
4142 obstack_grow (&collect_obstack
, " ", 1);
4146 /* Ignore elided switches. */
4147 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4150 obstack_grow (&collect_obstack
, "'-", 2);
4151 q
= switches
[i
].part1
;
4152 while ((p
= strchr (q
, '\'')))
4154 obstack_grow (&collect_obstack
, q
, p
- q
);
4155 obstack_grow (&collect_obstack
, "'\\''", 4);
4158 obstack_grow (&collect_obstack
, q
, strlen (q
));
4159 obstack_grow (&collect_obstack
, "'", 1);
4161 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4163 obstack_grow (&collect_obstack
, " '", 2);
4165 while ((p
= strchr (q
, '\'')))
4167 obstack_grow (&collect_obstack
, q
, p
- q
);
4168 obstack_grow (&collect_obstack
, "'\\''", 4);
4171 obstack_grow (&collect_obstack
, q
, strlen (q
));
4172 obstack_grow (&collect_obstack
, "'", 1);
4175 obstack_grow (&collect_obstack
, "\0", 1);
4176 putenv (obstack_finish (&collect_obstack
));
4179 /* Process a spec string, accumulating and running commands. */
4181 /* These variables describe the input file name.
4182 input_file_number is the index on outfiles of this file,
4183 so that the output file name can be stored for later use by %o.
4184 input_basename is the start of the part of the input file
4185 sans all directory names, and basename_length is the number
4186 of characters starting there excluding the suffix .c or whatever. */
4188 static const char *input_filename
;
4189 static int input_file_number
;
4190 size_t input_filename_length
;
4191 static int basename_length
;
4192 static int suffixed_basename_length
;
4193 static const char *input_basename
;
4194 static const char *input_suffix
;
4195 static struct stat input_stat
;
4196 static int input_stat_set
;
4198 /* The compiler used to process the current input file. */
4199 static struct compiler
*input_file_compiler
;
4201 /* These are variables used within do_spec and do_spec_1. */
4203 /* Nonzero if an arg has been started and not yet terminated
4204 (with space, tab or newline). */
4205 static int arg_going
;
4207 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4208 is a temporary file name. */
4209 static int delete_this_arg
;
4211 /* Nonzero means %w has been seen; the next arg to be terminated
4212 is the output file name of this compilation. */
4213 static int this_is_output_file
;
4215 /* Nonzero means %s has been seen; the next arg to be terminated
4216 is the name of a library file and we should try the standard
4217 search dirs for it. */
4218 static int this_is_library_file
;
4220 /* Nonzero means that the input of this command is coming from a pipe. */
4221 static int input_from_pipe
;
4223 /* Nonnull means substitute this for any suffix when outputting a switches
4225 static const char *suffix_subst
;
4227 /* Process the spec SPEC and run the commands specified therein.
4228 Returns 0 if the spec is successfully processed; -1 if failed. */
4231 do_spec (const char *spec
)
4235 value
= do_spec_2 (spec
);
4237 /* Force out any unfinished command.
4238 If -pipe, this forces out the last command if it ended in `|'. */
4241 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4244 set_collect_gcc_options ();
4246 if (argbuf_index
> 0)
4254 do_spec_2 (const char *spec
)
4261 delete_this_arg
= 0;
4262 this_is_output_file
= 0;
4263 this_is_library_file
= 0;
4264 input_from_pipe
= 0;
4265 suffix_subst
= NULL
;
4267 result
= do_spec_1 (spec
, 0, NULL
);
4269 /* End any pending argument. */
4272 obstack_1grow (&obstack
, 0);
4273 string
= obstack_finish (&obstack
);
4274 if (this_is_library_file
)
4275 string
= find_file (string
);
4276 store_arg (string
, delete_this_arg
, this_is_output_file
);
4277 if (this_is_output_file
)
4278 outfiles
[input_file_number
] = string
;
4286 /* Process the given spec string and add any new options to the end
4287 of the switches/n_switches array. */
4290 do_option_spec (const char *name
, const char *spec
)
4292 unsigned int i
, value_count
, value_len
;
4293 const char *p
, *q
, *value
;
4294 char *tmp_spec
, *tmp_spec_p
;
4296 if (configure_default_options
[0].name
== NULL
)
4299 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4300 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4302 if (i
== ARRAY_SIZE (configure_default_options
))
4305 value
= configure_default_options
[i
].value
;
4306 value_len
= strlen (value
);
4308 /* Compute the size of the final spec. */
4311 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4317 /* Replace each %(VALUE) by the specified value. */
4318 tmp_spec
= alloca (strlen (spec
) + 1
4319 + value_count
* (value_len
- strlen ("%(VALUE)")));
4320 tmp_spec_p
= tmp_spec
;
4322 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4324 memcpy (tmp_spec_p
, q
, p
- q
);
4325 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4326 memcpy (tmp_spec_p
, value
, value_len
);
4327 tmp_spec_p
+= value_len
;
4328 q
= p
+ strlen ("%(VALUE)");
4330 strcpy (tmp_spec_p
, q
);
4332 do_self_spec (tmp_spec
);
4335 /* Process the given spec string and add any new options to the end
4336 of the switches/n_switches array. */
4339 do_self_spec (const char *spec
)
4342 do_spec_1 (" ", 0, NULL
);
4344 if (argbuf_index
> 0)
4349 n_switches
+= argbuf_index
;
4350 switches
= xrealloc (switches
,
4351 sizeof (struct switchstr
) * (n_switches
+ 1));
4353 switches
[n_switches
] = switches
[first
];
4354 for (i
= 0; i
< argbuf_index
; i
++)
4356 struct switchstr
*sw
;
4358 /* Each switch should start with '-'. */
4359 if (argbuf
[i
][0] != '-')
4362 sw
= &switches
[i
+ first
];
4363 sw
->part1
= &argbuf
[i
][1];
4365 sw
->live_cond
= SWITCH_OK
;
4372 /* Process the sub-spec SPEC as a portion of a larger spec.
4373 This is like processing a whole spec except that we do
4374 not initialize at the beginning and we do not supply a
4375 newline by default at the end.
4376 INSWITCH nonzero means don't process %-sequences in SPEC;
4377 in this case, % is treated as an ordinary character.
4378 This is used while substituting switches.
4379 INSWITCH nonzero also causes SPC not to terminate an argument.
4381 Value is zero unless a line was finished
4382 and the command on that line reported an error. */
4385 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4387 const char *p
= spec
;
4394 /* If substituting a switch, treat all chars like letters.
4395 Otherwise, NL, SPC, TAB and % are special. */
4396 switch (inswitch
? 'a' : c
)
4399 /* End of line: finish any pending argument,
4400 then run the pending command if one has been started. */
4403 obstack_1grow (&obstack
, 0);
4404 string
= obstack_finish (&obstack
);
4405 if (this_is_library_file
)
4406 string
= find_file (string
);
4407 store_arg (string
, delete_this_arg
, this_is_output_file
);
4408 if (this_is_output_file
)
4409 outfiles
[input_file_number
] = string
;
4413 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4415 /* A `|' before the newline means use a pipe here,
4416 but only if -pipe was specified.
4417 Otherwise, execute now and don't pass the `|' as an arg. */
4420 input_from_pipe
= 1;
4427 set_collect_gcc_options ();
4429 if (argbuf_index
> 0)
4435 /* Reinitialize for a new command, and for a new argument. */
4438 delete_this_arg
= 0;
4439 this_is_output_file
= 0;
4440 this_is_library_file
= 0;
4441 input_from_pipe
= 0;
4445 /* End any pending argument. */
4448 obstack_1grow (&obstack
, 0);
4449 string
= obstack_finish (&obstack
);
4450 if (this_is_library_file
)
4451 string
= find_file (string
);
4452 store_arg (string
, delete_this_arg
, this_is_output_file
);
4453 if (this_is_output_file
)
4454 outfiles
[input_file_number
] = string
;
4458 obstack_1grow (&obstack
, c
);
4464 /* Space or tab ends an argument if one is pending. */
4467 obstack_1grow (&obstack
, 0);
4468 string
= obstack_finish (&obstack
);
4469 if (this_is_library_file
)
4470 string
= find_file (string
);
4471 store_arg (string
, delete_this_arg
, this_is_output_file
);
4472 if (this_is_output_file
)
4473 outfiles
[input_file_number
] = string
;
4475 /* Reinitialize for a new argument. */
4477 delete_this_arg
= 0;
4478 this_is_output_file
= 0;
4479 this_is_library_file
= 0;
4486 fatal ("invalid specification! Bug in cc");
4489 obstack_grow (&obstack
, input_basename
, basename_length
);
4494 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4499 delete_this_arg
= 2;
4502 /* Dump out the directories specified with LIBRARY_PATH,
4503 followed by the absolute directories
4504 that we search for startfiles. */
4507 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4508 size_t bufsize
= 100;
4509 char *buffer
= xmalloc (bufsize
);
4512 for (; pl
; pl
= pl
->next
)
4514 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4515 /* Used on systems which record the specified -L dirs
4516 and use them to search for dynamic linking. */
4517 /* Relative directories always come from -B,
4518 and it is better not to use them for searching
4519 at run time. In particular, stage1 loses. */
4520 if (!IS_ABSOLUTE_PATH (pl
->prefix
))
4523 /* Try subdirectory if there is one. */
4524 if (multilib_dir
!= NULL
4525 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4527 const char *multi_dir
;
4529 multi_dir
= pl
->os_multilib
? multilib_os_dir
4531 if (machine_suffix
&& multilib_dir
)
4533 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4535 bufsize
= (strlen (pl
->prefix
)
4536 + strlen (machine_suffix
)) * 2 + 1;
4537 buffer
= xrealloc (buffer
, bufsize
);
4538 strcpy (buffer
, pl
->prefix
);
4539 strcat (buffer
, machine_suffix
);
4540 if (is_directory (buffer
, multilib_dir
, 1))
4542 do_spec_1 ("-L", 0, NULL
);
4543 #ifdef SPACE_AFTER_L_OPTION
4544 do_spec_1 (" ", 0, NULL
);
4546 do_spec_1 (buffer
, 1, NULL
);
4547 do_spec_1 (multilib_dir
, 1, NULL
);
4548 /* Make this a separate argument. */
4549 do_spec_1 (" ", 0, NULL
);
4552 if (!pl
->require_machine_suffix
)
4554 if (is_directory (pl
->prefix
, multi_dir
, 1))
4556 do_spec_1 ("-L", 0, NULL
);
4557 #ifdef SPACE_AFTER_L_OPTION
4558 do_spec_1 (" ", 0, NULL
);
4560 do_spec_1 (pl
->prefix
, 1, NULL
);
4561 do_spec_1 (multi_dir
, 1, NULL
);
4562 /* Make this a separate argument. */
4563 do_spec_1 (" ", 0, NULL
);
4569 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4571 do_spec_1 ("-L", 0, NULL
);
4572 #ifdef SPACE_AFTER_L_OPTION
4573 do_spec_1 (" ", 0, NULL
);
4575 do_spec_1 (pl
->prefix
, 1, NULL
);
4576 /* Remove slash from machine_suffix. */
4577 if (strlen (machine_suffix
) >= bufsize
)
4578 bufsize
= strlen (machine_suffix
) * 2 + 1;
4579 buffer
= xrealloc (buffer
, bufsize
);
4580 strcpy (buffer
, machine_suffix
);
4581 idx
= strlen (buffer
);
4582 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4583 buffer
[idx
- 1] = 0;
4584 do_spec_1 (buffer
, 1, NULL
);
4585 /* Make this a separate argument. */
4586 do_spec_1 (" ", 0, NULL
);
4589 if (!pl
->require_machine_suffix
)
4591 if (is_directory (pl
->prefix
, "", 1))
4593 do_spec_1 ("-L", 0, NULL
);
4594 #ifdef SPACE_AFTER_L_OPTION
4595 do_spec_1 (" ", 0, NULL
);
4597 /* Remove slash from pl->prefix. */
4598 if (strlen (pl
->prefix
) >= bufsize
)
4599 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4600 buffer
= xrealloc (buffer
, bufsize
);
4601 strcpy (buffer
, pl
->prefix
);
4602 idx
= strlen (buffer
);
4603 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4604 buffer
[idx
- 1] = 0;
4605 do_spec_1 (buffer
, 1, NULL
);
4606 /* Make this a separate argument. */
4607 do_spec_1 (" ", 0, NULL
);
4616 /* %efoo means report an error with `foo' as error message
4617 and don't execute any more commands for this file. */
4621 while (*p
!= 0 && *p
!= '\n')
4623 buf
= alloca (p
- q
+ 1);
4624 strncpy (buf
, q
, p
- q
);
4631 /* %nfoo means report a notice with `foo' on stderr. */
4635 while (*p
!= 0 && *p
!= '\n')
4637 buf
= alloca (p
- q
+ 1);
4638 strncpy (buf
, q
, p
- q
);
4640 notice ("%s\n", buf
);
4650 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4651 defined, and it is not a directory, and it is
4652 writable, use it. Otherwise, treat this like any
4653 other temporary file. */
4655 if ((!save_temps_flag
)
4656 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4657 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4659 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4660 strlen (HOST_BIT_BUCKET
));
4661 delete_this_arg
= 0;
4666 goto create_temp_file
;
4670 obstack_1grow (&obstack
, '-');
4671 delete_this_arg
= 0;
4674 /* consume suffix */
4675 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4677 if (p
[0] == '%' && p
[1] == 'O')
4682 goto create_temp_file
;
4686 /* consume suffix */
4687 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4689 if (p
[0] == '%' && p
[1] == 'O')
4694 goto create_temp_file
;
4700 struct temp_name
*t
;
4702 const char *suffix
= p
;
4703 char *saved_suffix
= NULL
;
4705 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4707 suffix_length
= p
- suffix
;
4708 if (p
[0] == '%' && p
[1] == 'O')
4711 /* We don't support extra suffix characters after %O. */
4712 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4714 if (suffix_length
== 0)
4715 suffix
= TARGET_OBJECT_SUFFIX
;
4719 = xmalloc (suffix_length
4720 + strlen (TARGET_OBJECT_SUFFIX
));
4721 strncpy (saved_suffix
, suffix
, suffix_length
);
4722 strcpy (saved_suffix
+ suffix_length
,
4723 TARGET_OBJECT_SUFFIX
);
4725 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4728 /* If the input_filename has the same suffix specified
4729 for the %g, %u, or %U, and -save-temps is specified,
4730 we could end up using that file as an intermediate
4731 thus clobbering the user's source file (.e.g.,
4732 gcc -save-temps foo.s would clobber foo.s with the
4733 output of cpp0). So check for this condition and
4734 generate a temp file as the intermediate. */
4736 if (save_temps_flag
)
4738 temp_filename_length
= basename_length
+ suffix_length
;
4739 temp_filename
= alloca (temp_filename_length
+ 1);
4740 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4741 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4743 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4744 if (strcmp (temp_filename
, input_filename
) != 0)
4746 struct stat st_temp
;
4748 /* Note, set_input() resets input_stat_set to 0. */
4749 if (input_stat_set
== 0)
4751 input_stat_set
= stat (input_filename
, &input_stat
);
4752 if (input_stat_set
>= 0)
4756 /* If we have the stat for the input_filename
4757 and we can do the stat for the temp_filename
4758 then the they could still refer to the same
4759 file if st_dev/st_ino's are the same. */
4761 if (input_stat_set
!= 1
4762 || stat (temp_filename
, &st_temp
) < 0
4763 || input_stat
.st_dev
!= st_temp
.st_dev
4764 || input_stat
.st_ino
!= st_temp
.st_ino
)
4766 temp_filename
= save_string (temp_filename
,
4767 temp_filename_length
+ 1);
4768 obstack_grow (&obstack
, temp_filename
,
4769 temp_filename_length
);
4771 delete_this_arg
= 0;
4777 /* See if we already have an association of %g/%u/%U and
4779 for (t
= temp_names
; t
; t
= t
->next
)
4780 if (t
->length
== suffix_length
4781 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4782 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4785 /* Make a new association if needed. %u and %j
4787 if (t
== 0 || c
== 'u' || c
== 'j')
4791 t
= xmalloc (sizeof (struct temp_name
));
4792 t
->next
= temp_names
;
4795 t
->length
= suffix_length
;
4798 t
->suffix
= saved_suffix
;
4799 saved_suffix
= NULL
;
4802 t
->suffix
= save_string (suffix
, suffix_length
);
4803 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4804 temp_filename
= make_temp_file (t
->suffix
);
4805 temp_filename_length
= strlen (temp_filename
);
4806 t
->filename
= temp_filename
;
4807 t
->filename_length
= temp_filename_length
;
4811 free (saved_suffix
);
4813 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4814 delete_this_arg
= 1;
4822 for (i
= 0; (int) i
< n_infiles
; i
++)
4823 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4824 if (infiles
[i
].incompiler
== input_file_compiler
)
4826 store_arg (infiles
[i
].name
, 0, 0);
4827 infiles
[i
].compiled
= true;
4832 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4839 struct prefix_list
*pl
= include_prefixes
.plist
;
4841 if (gcc_exec_prefix
)
4843 do_spec_1 ("-iprefix", 1, NULL
);
4844 /* Make this a separate argument. */
4845 do_spec_1 (" ", 0, NULL
);
4846 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4847 do_spec_1 (" ", 0, NULL
);
4850 if (target_system_root_changed
||
4851 (target_system_root
&& target_sysroot_hdrs_suffix
))
4853 do_spec_1 ("-isysroot", 1, NULL
);
4854 /* Make this a separate argument. */
4855 do_spec_1 (" ", 0, NULL
);
4856 do_spec_1 (target_system_root
, 1, NULL
);
4857 if (target_sysroot_hdrs_suffix
)
4858 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4859 do_spec_1 (" ", 0, NULL
);
4862 for (; pl
; pl
= pl
->next
)
4864 do_spec_1 ("-isystem", 1, NULL
);
4865 /* Make this a separate argument. */
4866 do_spec_1 (" ", 0, NULL
);
4867 do_spec_1 (pl
->prefix
, 1, NULL
);
4868 do_spec_1 (" ", 0, NULL
);
4875 int max
= n_infiles
;
4876 max
+= lang_specific_extra_outfiles
;
4878 for (i
= 0; i
< max
; i
++)
4880 store_arg (outfiles
[i
], 0, 0);
4885 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4890 this_is_library_file
= 1;
4894 outfiles
[input_file_number
] = NULL
;
4898 this_is_output_file
= 1;
4903 int cur_index
= argbuf_index
;
4904 /* Handle the {...} following the %W. */
4907 p
= handle_braces (p
+ 1);
4910 /* End any pending argument. */
4913 obstack_1grow (&obstack
, 0);
4914 string
= obstack_finish (&obstack
);
4915 if (this_is_library_file
)
4916 string
= find_file (string
);
4917 store_arg (string
, delete_this_arg
, this_is_output_file
);
4918 if (this_is_output_file
)
4919 outfiles
[input_file_number
] = string
;
4922 /* If any args were output, mark the last one for deletion
4924 if (argbuf_index
!= cur_index
)
4925 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4929 /* %x{OPTION} records OPTION for %X to output. */
4935 /* Skip past the option value and make a copy. */
4940 string
= save_string (p1
+ 1, p
- p1
- 2);
4942 /* See if we already recorded this option. */
4943 for (i
= 0; i
< n_linker_options
; i
++)
4944 if (! strcmp (string
, linker_options
[i
]))
4950 /* This option is new; add it. */
4951 add_linker_option (string
, strlen (string
));
4955 /* Dump out the options accumulated previously using %x. */
4957 for (i
= 0; i
< n_linker_options
; i
++)
4959 do_spec_1 (linker_options
[i
], 1, NULL
);
4960 /* Make each accumulated option a separate argument. */
4961 do_spec_1 (" ", 0, NULL
);
4965 /* Dump out the options accumulated previously using -Wa,. */
4967 for (i
= 0; i
< n_assembler_options
; i
++)
4969 do_spec_1 (assembler_options
[i
], 1, NULL
);
4970 /* Make each accumulated option a separate argument. */
4971 do_spec_1 (" ", 0, NULL
);
4975 /* Dump out the options accumulated previously using -Wp,. */
4977 for (i
= 0; i
< n_preprocessor_options
; i
++)
4979 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4980 /* Make each accumulated option a separate argument. */
4981 do_spec_1 (" ", 0, NULL
);
4985 /* Here are digits and numbers that just process
4986 a certain constant string as a spec. */
4989 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4995 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5001 value
= do_spec_1 (asm_spec
, 0, NULL
);
5007 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5014 const char *const spec
5015 = (input_file_compiler
->cpp_spec
5016 ? input_file_compiler
->cpp_spec
5018 value
= do_spec_1 (spec
, 0, NULL
);
5025 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5031 value
= do_spec_1 (link_spec
, 0, NULL
);
5037 value
= do_spec_1 (lib_spec
, 0, NULL
);
5043 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5049 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
5055 len
= strlen (multilib_dir
);
5056 obstack_blank (&obstack
, len
+ 1);
5057 p
= obstack_next_free (&obstack
) - (len
+ 1);
5060 for (q
= multilib_dir
; *q
; ++q
, ++p
)
5061 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
5066 /* We assume there is a directory
5067 separator at the end of this string. */
5068 if (target_system_root
)
5070 obstack_grow (&obstack
, target_system_root
,
5071 strlen (target_system_root
));
5072 if (target_sysroot_suffix
)
5073 obstack_grow (&obstack
, target_sysroot_suffix
,
5074 strlen (target_sysroot_suffix
));
5079 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5084 /* Here we define characters other than letters and digits. */
5087 p
= handle_braces (p
);
5093 p
= handle_spec_function (p
);
5099 obstack_1grow (&obstack
, '%');
5106 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5108 suffix_subst
= save_string (p
- 1, len
+ 1);
5113 /* Henceforth ignore the option(s) matching the pattern
5118 int have_wildcard
= 0;
5121 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5124 if (p
[len
-1] == '*')
5127 for (i
= 0; i
< n_switches
; i
++)
5128 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5129 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5131 switches
[i
].live_cond
= SWITCH_IGNORE
;
5132 switches
[i
].validated
= 1;
5140 if (soft_matched_part
)
5142 do_spec_1 (soft_matched_part
, 1, NULL
);
5143 do_spec_1 (" ", 0, NULL
);
5146 /* Catch the case where a spec string contains something like
5147 '%{foo:%*}'. ie there is no * in the pattern on the left
5148 hand side of the :. */
5149 error ("spec failure: '%%*' has not been initialized by pattern match");
5152 /* Process a string found as the value of a spec given by name.
5153 This feature allows individual machine descriptions
5154 to add and use their own specs.
5155 %[...] modifies -D options the way %P does;
5156 %(...) uses the spec unmodified. */
5158 error ("warning: use of obsolete %%[ operator in specs");
5161 const char *name
= p
;
5162 struct spec_list
*sl
;
5165 /* The string after the S/P is the name of a spec that is to be
5167 while (*p
&& *p
!= ')' && *p
!= ']')
5170 /* See if it's in the list. */
5171 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5172 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5174 name
= *(sl
->ptr_spec
);
5176 notice ("Processing spec %c%s%c, which is '%s'\n",
5177 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5186 value
= do_spec_1 (name
, 0, NULL
);
5192 char *x
= alloca (strlen (name
) * 2 + 1);
5194 const char *y
= name
;
5197 /* Copy all of NAME into BUF, but put __ after
5198 every -D and at the end of each arg. */
5201 if (! strncmp (y
, "-D", 2))
5212 && (*y
== ' ' || *y
== '\t' || *y
== '='
5213 || *y
== '}' || *y
== 0))
5226 value
= do_spec_1 (buf
, 0, NULL
);
5232 /* Discard the closing paren or bracket. */
5239 error ("spec failure: unrecognized spec option '%c'", c
);
5245 /* Backslash: treat next character as ordinary. */
5250 /* Ordinary character: put it into the current argument. */
5251 obstack_1grow (&obstack
, c
);
5255 /* End of string. If we are processing a spec function, we need to
5256 end any pending argument. */
5257 if (processing_spec_function
&& arg_going
)
5259 obstack_1grow (&obstack
, 0);
5260 string
= obstack_finish (&obstack
);
5261 if (this_is_library_file
)
5262 string
= find_file (string
);
5263 store_arg (string
, delete_this_arg
, this_is_output_file
);
5264 if (this_is_output_file
)
5265 outfiles
[input_file_number
] = string
;
5272 /* Look up a spec function. */
5274 static const struct spec_function
*
5275 lookup_spec_function (const char *name
)
5277 static const struct spec_function
* const spec_function_tables
[] =
5279 static_spec_functions
,
5280 lang_specific_spec_functions
,
5282 const struct spec_function
*sf
;
5285 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5287 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5288 if (strcmp (sf
->name
, name
) == 0)
5295 /* Evaluate a spec function. */
5298 eval_spec_function (const char *func
, const char *args
)
5300 const struct spec_function
*sf
;
5301 const char *funcval
;
5303 /* Saved spec processing context. */
5304 int save_argbuf_index
;
5305 int save_argbuf_length
;
5306 const char **save_argbuf
;
5309 int save_delete_this_arg
;
5310 int save_this_is_output_file
;
5311 int save_this_is_library_file
;
5312 int save_input_from_pipe
;
5313 const char *save_suffix_subst
;
5316 sf
= lookup_spec_function (func
);
5318 fatal ("unknown spec function `%s'", func
);
5320 /* Push the spec processing context. */
5321 save_argbuf_index
= argbuf_index
;
5322 save_argbuf_length
= argbuf_length
;
5323 save_argbuf
= argbuf
;
5325 save_arg_going
= arg_going
;
5326 save_delete_this_arg
= delete_this_arg
;
5327 save_this_is_output_file
= this_is_output_file
;
5328 save_this_is_library_file
= this_is_library_file
;
5329 save_input_from_pipe
= input_from_pipe
;
5330 save_suffix_subst
= suffix_subst
;
5332 /* Create a new spec processing context, and build the function
5336 if (do_spec_2 (args
) < 0)
5337 fatal ("error in args to spec function `%s'", func
);
5339 /* argbuf_index is an index for the next argument to be inserted, and
5340 so contains the count of the args already inserted. */
5342 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5344 /* Pop the spec processing context. */
5345 argbuf_index
= save_argbuf_index
;
5346 argbuf_length
= save_argbuf_length
;
5348 argbuf
= save_argbuf
;
5350 arg_going
= save_arg_going
;
5351 delete_this_arg
= save_delete_this_arg
;
5352 this_is_output_file
= save_this_is_output_file
;
5353 this_is_library_file
= save_this_is_library_file
;
5354 input_from_pipe
= save_input_from_pipe
;
5355 suffix_subst
= save_suffix_subst
;
5360 /* Handle a spec function call of the form:
5364 ARGS is processed as a spec in a separate context and split into an
5365 argument vector in the normal fashion. The function returns a string
5366 containing a spec which we then process in the caller's context, or
5367 NULL if no processing is required. */
5370 handle_spec_function (const char *p
)
5373 const char *endp
, *funcval
;
5376 processing_spec_function
++;
5378 /* Get the function name. */
5379 for (endp
= p
; *endp
!= '\0'; endp
++)
5381 if (*endp
== '(') /* ) */
5383 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5384 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5385 fatal ("malformed spec function name");
5387 if (*endp
!= '(') /* ) */
5388 fatal ("no arguments for spec function");
5389 func
= save_string (p
, endp
- p
);
5392 /* Get the arguments. */
5393 for (count
= 0; *endp
!= '\0'; endp
++)
5402 else if (*endp
== '(') /* ) */
5407 fatal ("malformed spec function arguments");
5408 args
= save_string (p
, endp
- p
);
5411 /* p now points to just past the end of the spec function expression. */
5413 funcval
= eval_spec_function (func
, args
);
5414 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5420 processing_spec_function
--;
5425 /* Inline subroutine of handle_braces. Returns true if the current
5426 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5428 input_suffix_matches (const char *atom
, const char *end_atom
)
5430 return (input_suffix
5431 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5432 && input_suffix
[end_atom
- atom
] == '\0');
5435 /* Inline subroutine of handle_braces. Returns true if a switch
5436 matching the atom bracketed by ATOM and END_ATOM appeared on the
5439 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5442 int len
= end_atom
- atom
;
5443 int plen
= starred
? len
: -1;
5445 for (i
= 0; i
< n_switches
; i
++)
5446 if (!strncmp (switches
[i
].part1
, atom
, len
)
5447 && (starred
|| switches
[i
].part1
[len
] == '\0')
5448 && check_live_switch (i
, plen
))
5454 /* Inline subroutine of handle_braces. Mark all of the switches which
5455 match ATOM (extends to END_ATOM; STARRED indicates whether there
5456 was a star after the atom) for later processing. */
5458 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5461 int len
= end_atom
- atom
;
5462 int plen
= starred
? len
: -1;
5464 for (i
= 0; i
< n_switches
; i
++)
5465 if (!strncmp (switches
[i
].part1
, atom
, len
)
5466 && (starred
|| switches
[i
].part1
[len
] == '\0')
5467 && check_live_switch (i
, plen
))
5468 switches
[i
].ordering
= 1;
5471 /* Inline subroutine of handle_braces. Process all the currently
5472 marked switches through give_switch, and clear the marks. */
5474 process_marked_switches (void)
5478 for (i
= 0; i
< n_switches
; i
++)
5479 if (switches
[i
].ordering
== 1)
5481 switches
[i
].ordering
= 0;
5486 /* Handle a %{ ... } construct. P points just inside the leading {.
5487 Returns a pointer one past the end of the brace block, or 0
5488 if we call do_spec_1 and that returns -1. */
5491 handle_braces (const char *p
)
5493 const char *atom
, *end_atom
;
5494 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5501 bool a_must_be_last
= false;
5502 bool ordered_set
= false;
5503 bool disjunct_set
= false;
5504 bool disj_matched
= false;
5505 bool disj_starred
= true;
5506 bool n_way_choice
= false;
5507 bool n_way_matched
= false;
5509 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5516 /* Scan one "atom" (S in the description above of %{}, possibly
5517 with !, ., or * modifiers). */
5518 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5522 p
++, a_is_negated
= true;
5526 p
++, a_is_suffix
= true;
5529 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5530 || *p
== ',' || *p
== '.' || *p
== '@')
5535 p
++, a_is_starred
= 1;
5538 if (*p
== '&' || *p
== '}')
5540 /* Substitute the switch(es) indicated by the current atom. */
5542 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5543 || atom
== end_atom
)
5546 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5549 process_marked_switches ();
5551 else if (*p
== '|' || *p
== ':')
5553 /* Substitute some text if the current atom appears as a switch
5555 disjunct_set
= true;
5559 if (atom
== end_atom
)
5561 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5562 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5565 /* An empty term may appear as the last choice of an
5566 N-way choice set; it means "otherwise". */
5567 a_must_be_last
= true;
5568 disj_matched
= !n_way_matched
;
5569 disj_starred
= false;
5573 if (a_is_suffix
&& a_is_starred
)
5577 disj_starred
= false;
5579 /* Don't bother testing this atom if we already have a
5581 if (!disj_matched
&& !n_way_matched
)
5584 a_matched
= input_suffix_matches (atom
, end_atom
);
5586 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5588 if (a_matched
!= a_is_negated
)
5590 disj_matched
= true;
5592 d_end_atom
= end_atom
;
5599 /* Found the body, that is, the text to substitute if the
5600 current disjunction matches. */
5601 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5602 disj_matched
&& !n_way_matched
);
5606 /* If we have an N-way choice, reset state for the next
5610 n_way_choice
= true;
5611 n_way_matched
|= disj_matched
;
5612 disj_matched
= false;
5613 disj_starred
= true;
5614 d_atom
= d_end_atom
= NULL
;
5621 while (*p
++ != '}');
5628 /* Subroutine of handle_braces. Scan and process a brace substitution body
5629 (X in the description of %{} syntax). P points one past the colon;
5630 ATOM and END_ATOM bracket the first atom which was found to be true
5631 (present) in the current disjunction; STARRED indicates whether all
5632 the atoms in the current disjunction were starred (for syntax validation);
5633 MATCHED indicates whether the disjunction matched or not, and therefore
5634 whether or not the body is to be processed through do_spec_1 or just
5635 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5639 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5640 int starred
, int matched
)
5642 const char *body
, *end_body
;
5643 unsigned int nesting_level
;
5644 bool have_subst
= false;
5646 /* Locate the closing } or ;, honoring nested braces.
5647 Trim trailing whitespace. */
5656 if (!--nesting_level
)
5659 else if (*p
== ';' && nesting_level
== 1)
5661 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5663 else if (*p
== '\0')
5669 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5672 if (have_subst
&& !starred
)
5677 /* Copy the substitution body to permanent storage and execute it.
5678 If have_subst is false, this is a simple matter of running the
5679 body through do_spec_1... */
5680 char *string
= save_string (body
, end_body
- body
);
5683 if (do_spec_1 (string
, 0, NULL
) < 0)
5688 /* ... but if have_subst is true, we have to process the
5689 body once for each matching switch, with %* set to the
5690 variant part of the switch. */
5691 unsigned int hard_match_len
= end_atom
- atom
;
5694 for (i
= 0; i
< n_switches
; i
++)
5695 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5696 && check_live_switch (i
, hard_match_len
))
5698 if (do_spec_1 (string
, 0,
5699 &switches
[i
].part1
[hard_match_len
]) < 0)
5701 /* Pass any arguments this switch has. */
5703 suffix_subst
= NULL
;
5711 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5712 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5713 spec, or -1 if either exact match or %* is used.
5715 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5716 whose value does not begin with "no-" is obsoleted by the same value
5717 with the "no-", similarly for a switch with the "no-" prefix. */
5720 check_live_switch (int switchnum
, int prefix_length
)
5722 const char *name
= switches
[switchnum
].part1
;
5725 /* In the common case of {<at-most-one-letter>*}, a negating
5726 switch would always match, so ignore that case. We will just
5727 send the conflicting switches to the compiler phase. */
5728 if (prefix_length
>= 0 && prefix_length
<= 1)
5731 /* If we already processed this switch and determined if it was
5732 live or not, return our past determination. */
5733 if (switches
[switchnum
].live_cond
!= 0)
5734 return switches
[switchnum
].live_cond
> 0;
5736 /* Now search for duplicate in a manner that depends on the name. */
5740 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5741 if (switches
[i
].part1
[0] == 'O')
5743 switches
[switchnum
].validated
= 1;
5744 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5749 case 'W': case 'f': case 'm':
5750 if (! strncmp (name
+ 1, "no-", 3))
5752 /* We have Xno-YYY, search for XYYY. */
5753 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5754 if (switches
[i
].part1
[0] == name
[0]
5755 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5757 switches
[switchnum
].validated
= 1;
5758 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5764 /* We have XYYY, search for Xno-YYY. */
5765 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5766 if (switches
[i
].part1
[0] == name
[0]
5767 && switches
[i
].part1
[1] == 'n'
5768 && switches
[i
].part1
[2] == 'o'
5769 && switches
[i
].part1
[3] == '-'
5770 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5772 switches
[switchnum
].validated
= 1;
5773 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5780 /* Otherwise the switch is live. */
5781 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5785 /* Pass a switch to the current accumulating command
5786 in the same form that we received it.
5787 SWITCHNUM identifies the switch; it is an index into
5788 the vector of switches gcc received, which is `switches'.
5789 This cannot fail since it never finishes a command line.
5791 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5794 give_switch (int switchnum
, int omit_first_word
)
5796 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5799 if (!omit_first_word
)
5801 do_spec_1 ("-", 0, NULL
);
5802 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5805 if (switches
[switchnum
].args
!= 0)
5808 for (p
= switches
[switchnum
].args
; *p
; p
++)
5810 const char *arg
= *p
;
5812 do_spec_1 (" ", 0, NULL
);
5815 unsigned length
= strlen (arg
);
5818 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5819 if (arg
[length
] == '.')
5821 ((char *)arg
)[length
] = 0;
5825 do_spec_1 (arg
, 1, NULL
);
5827 ((char *)arg
)[length
] = '.';
5828 do_spec_1 (suffix_subst
, 1, NULL
);
5831 do_spec_1 (arg
, 1, NULL
);
5835 do_spec_1 (" ", 0, NULL
);
5836 switches
[switchnum
].validated
= 1;
5839 /* Search for a file named NAME trying various prefixes including the
5840 user's -B prefix and some standard ones.
5841 Return the absolute file name found. If nothing is found, return NAME. */
5844 find_file (const char *name
)
5848 /* Try multilib_dir if it is defined. */
5849 if (multilib_os_dir
!= NULL
)
5851 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5853 /* If we don't find it in the multi library dir, then fall
5854 through and look for it in the normal places. */
5855 if (newname
!= NULL
)
5859 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5860 return newname
? newname
: name
;
5863 /* Determine whether a directory exists. If LINKER, return 0 for
5864 certain fixed names not needed by the linker. If not LINKER, it is
5865 only important to return 0 if the host machine has a small ARG_MAX
5869 is_directory (const char *path1
, const char *path2
, int linker
)
5871 int len1
= strlen (path1
);
5872 int len2
= strlen (path2
);
5873 char *path
= alloca (3 + len1
+ len2
);
5877 #ifndef SMALL_ARG_MAX
5882 /* Construct the path from the two parts. Ensure the string ends with "/.".
5883 The resulting path will be a directory even if the given path is a
5885 memcpy (path
, path1
, len1
);
5886 memcpy (path
+ len1
, path2
, len2
);
5887 cp
= path
+ len1
+ len2
;
5888 if (!IS_DIR_SEPARATOR (cp
[-1]))
5889 *cp
++ = DIR_SEPARATOR
;
5893 /* Exclude directories that the linker is known to search. */
5896 && strcmp (path
, concat (dir_separator_str
, "lib",
5897 dir_separator_str
, ".", NULL
)) == 0)
5899 && strcmp (path
, concat (dir_separator_str
, "usr",
5900 dir_separator_str
, "lib",
5901 dir_separator_str
, ".", NULL
)) == 0)))
5904 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5907 /* Set up the various global variables to indicate that we're processing
5908 the input file named FILENAME. */
5911 set_input (const char *filename
)
5915 input_filename
= filename
;
5916 input_filename_length
= strlen (input_filename
);
5918 input_basename
= input_filename
;
5919 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5920 /* Skip drive name so 'x:foo' is handled properly. */
5921 if (input_basename
[1] == ':')
5922 input_basename
+= 2;
5924 for (p
= input_basename
; *p
; p
++)
5925 if (IS_DIR_SEPARATOR (*p
))
5926 input_basename
= p
+ 1;
5928 /* Find a suffix starting with the last period,
5929 and set basename_length to exclude that suffix. */
5930 basename_length
= strlen (input_basename
);
5931 suffixed_basename_length
= basename_length
;
5932 p
= input_basename
+ basename_length
;
5933 while (p
!= input_basename
&& *p
!= '.')
5935 if (*p
== '.' && p
!= input_basename
)
5937 basename_length
= p
- input_basename
;
5938 input_suffix
= p
+ 1;
5943 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5944 we will need to do a stat on the input_filename. The
5945 INPUT_STAT_SET signals that the stat is needed. */
5949 /* On fatal signals, delete all the temporary files. */
5952 fatal_error (int signum
)
5954 signal (signum
, SIG_DFL
);
5955 delete_failure_queue ();
5956 delete_temp_files ();
5957 /* Get the same signal again, this time not handled,
5958 so its normal effect occurs. */
5959 kill (getpid (), signum
);
5962 extern int main (int, const char **);
5965 main (int argc
, const char **argv
)
5969 int linker_was_run
= 0;
5970 int lang_n_infiles
= 0;
5971 int num_linker_inputs
= 0;
5972 char *explicit_link_files
;
5975 struct user_specs
*uptr
;
5977 p
= argv
[0] + strlen (argv
[0]);
5978 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5982 xmalloc_set_program_name (programname
);
5984 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5985 /* Perform host dependent initialization when needed. */
5986 GCC_DRIVER_HOST_INITIALIZATION
;
5989 gcc_init_libintl ();
5991 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5992 signal (SIGINT
, fatal_error
);
5994 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5995 signal (SIGHUP
, fatal_error
);
5997 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5998 signal (SIGTERM
, fatal_error
);
6000 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6001 signal (SIGPIPE
, fatal_error
);
6004 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6005 receive the signal. A different setting is inheritable */
6006 signal (SIGCHLD
, SIG_DFL
);
6009 /* Allocate the argument vector. */
6012 obstack_init (&obstack
);
6014 /* Build multilib_select, et. al from the separate lines that make up each
6015 multilib selection. */
6017 const char *const *q
= multilib_raw
;
6020 obstack_init (&multilib_obstack
);
6021 while ((p
= *q
++) != (char *) 0)
6022 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6024 obstack_1grow (&multilib_obstack
, 0);
6025 multilib_select
= obstack_finish (&multilib_obstack
);
6027 q
= multilib_matches_raw
;
6028 while ((p
= *q
++) != (char *) 0)
6029 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6031 obstack_1grow (&multilib_obstack
, 0);
6032 multilib_matches
= obstack_finish (&multilib_obstack
);
6034 q
= multilib_exclusions_raw
;
6035 while ((p
= *q
++) != (char *) 0)
6036 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6038 obstack_1grow (&multilib_obstack
, 0);
6039 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6042 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6045 obstack_1grow (&multilib_obstack
, ' ');
6046 obstack_grow (&multilib_obstack
,
6047 multilib_defaults_raw
[i
],
6048 strlen (multilib_defaults_raw
[i
]));
6052 obstack_1grow (&multilib_obstack
, 0);
6053 multilib_defaults
= obstack_finish (&multilib_obstack
);
6056 /* Set up to remember the pathname of gcc and any options
6057 needed for collect. We use argv[0] instead of programname because
6058 we need the complete pathname. */
6059 obstack_init (&collect_obstack
);
6060 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6061 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6062 putenv (obstack_finish (&collect_obstack
));
6064 #ifdef INIT_ENVIRONMENT
6065 /* Set up any other necessary machine specific environment variables. */
6066 putenv (INIT_ENVIRONMENT
);
6069 /* Make a table of what switches there are (switches, n_switches).
6070 Make a table of specified input files (infiles, n_infiles).
6071 Decode switches that are handled locally. */
6073 process_command (argc
, argv
);
6075 /* Initialize the vector of specs to just the default.
6076 This means one element containing 0s, as a terminator. */
6078 compilers
= xmalloc (sizeof default_compilers
);
6079 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6080 n_compilers
= n_default_compilers
;
6082 /* Read specs from a file if there is one. */
6084 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6085 spec_version
, dir_separator_str
, NULL
);
6086 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6088 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6089 /* Read the specs file unless it is a default one. */
6090 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6091 read_specs (specs_file
, TRUE
);
6095 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6096 for any override of as, ld and libraries. */
6097 specs_file
= alloca (strlen (standard_exec_prefix
)
6098 + strlen (just_machine_suffix
) + sizeof ("specs"));
6100 strcpy (specs_file
, standard_exec_prefix
);
6101 strcat (specs_file
, just_machine_suffix
);
6102 strcat (specs_file
, "specs");
6103 if (access (specs_file
, R_OK
) == 0)
6104 read_specs (specs_file
, TRUE
);
6106 /* Process any configure-time defaults specified for the command line
6107 options, via OPTION_DEFAULT_SPECS. */
6108 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6109 do_option_spec (option_default_specs
[i
].name
,
6110 option_default_specs
[i
].spec
);
6112 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6113 of the command line. */
6115 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6116 do_self_spec (driver_self_specs
[i
]);
6118 /* If not cross-compiling, look for executables in the standard
6120 if (*cross_compile
== '0')
6122 if (*md_exec_prefix
)
6124 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6125 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6129 /* Process sysroot_suffix_spec. */
6130 if (*sysroot_suffix_spec
!= 0
6131 && do_spec_2 (sysroot_suffix_spec
) == 0)
6133 if (argbuf_index
> 1)
6134 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6135 else if (argbuf_index
== 1)
6136 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6139 /* Process sysroot_hdrs_suffix_spec. */
6140 if (*sysroot_hdrs_suffix_spec
!= 0
6141 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6143 if (argbuf_index
> 1)
6144 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6145 else if (argbuf_index
== 1)
6146 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6149 /* Look for startfiles in the standard places. */
6150 if (*startfile_prefix_spec
!= 0
6151 && do_spec_2 (startfile_prefix_spec
) == 0
6152 && do_spec_1 (" ", 0, NULL
) == 0)
6155 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6156 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6157 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6159 /* We should eventually get rid of all these and stick to
6160 startfile_prefix_spec exclusively. */
6161 else if (*cross_compile
== '0' || target_system_root
)
6163 if (*md_exec_prefix
)
6164 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6165 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6167 if (*md_startfile_prefix
)
6168 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6169 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6171 if (*md_startfile_prefix_1
)
6172 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6173 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6175 /* If standard_startfile_prefix is relative, base it on
6176 standard_exec_prefix. This lets us move the installed tree
6177 as a unit. If GCC_EXEC_PREFIX is defined, base
6178 standard_startfile_prefix on that as well.
6180 If the prefix is relative, only search it for native compilers;
6181 otherwise we will search a directory containing host libraries. */
6182 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6183 add_sysrooted_prefix (&startfile_prefixes
,
6184 standard_startfile_prefix
, "BINUTILS",
6185 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6186 else if (*cross_compile
== '0')
6188 if (gcc_exec_prefix
)
6189 add_prefix (&startfile_prefixes
,
6190 concat (gcc_exec_prefix
, machine_suffix
,
6191 standard_startfile_prefix
, NULL
),
6192 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6193 add_prefix (&startfile_prefixes
,
6194 concat (standard_exec_prefix
,
6196 standard_startfile_prefix
, NULL
),
6197 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6200 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6201 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6202 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6203 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6204 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6205 add_prefix (&startfile_prefixes
, "./", NULL
,
6206 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6210 /* Process any user specified specs in the order given on the command
6212 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6214 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6216 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6219 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6220 if (gcc_exec_prefix
)
6221 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6222 spec_version
, dir_separator_str
, NULL
);
6224 /* Now we have the specs.
6225 Set the `valid' bits for switches that match anything in any spec. */
6227 validate_all_switches ();
6229 /* Now that we have the switches and the specs, set
6230 the subdirectory based on the options. */
6231 set_multilib_dir ();
6233 /* Warn about any switches that no pass was interested in. */
6235 for (i
= 0; (int) i
< n_switches
; i
++)
6236 if (! switches
[i
].validated
)
6237 error ("unrecognized option `-%s'", switches
[i
].part1
);
6239 /* Obey some of the options. */
6241 if (print_search_dirs
)
6243 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6244 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6245 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6249 if (print_file_name
)
6251 printf ("%s\n", find_file (print_file_name
));
6255 if (print_prog_name
)
6257 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6258 printf ("%s\n", (newname
? newname
: print_prog_name
));
6262 if (print_multi_lib
)
6264 print_multilib_info ();
6268 if (print_multi_directory
)
6270 if (multilib_dir
== NULL
)
6273 printf ("%s\n", multilib_dir
);
6277 if (print_multi_os_directory
)
6279 if (multilib_os_dir
== NULL
)
6282 printf ("%s\n", multilib_os_dir
);
6286 if (target_help_flag
)
6288 /* Print if any target specific options. */
6290 /* We do not exit here. Instead we have created a fake input file
6291 called 'target-dummy' which needs to be compiled, and we pass this
6292 on to the various sub-processes, along with the --target-help
6296 if (print_help_list
)
6302 printf (_("\nFor bug reporting instructions, please see:\n"));
6303 printf ("%s.\n", bug_report_url
);
6308 /* We do not exit here. Instead we have created a fake input file
6309 called 'help-dummy' which needs to be compiled, and we pass this
6310 on the various sub-processes, along with the --help switch. */
6318 notice ("Configured with: %s\n", configuration_arguments
);
6320 #ifdef THREAD_MODEL_SPEC
6321 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6322 but there's no point in doing all this processing just to get
6323 thread_model back. */
6324 obstack_init (&obstack
);
6325 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6326 obstack_1grow (&obstack
, '\0');
6327 thrmod
= obstack_finish (&obstack
);
6329 thrmod
= thread_model
;
6332 notice ("Thread model: %s\n", thrmod
);
6334 /* compiler_version is truncated at the first space when initialized
6335 from version string, so truncate version_string at the first space
6336 before comparing. */
6337 for (n
= 0; version_string
[n
]; n
++)
6338 if (version_string
[n
] == ' ')
6341 if (! strncmp (version_string
, compiler_version
, n
)
6342 && compiler_version
[n
] == 0)
6343 notice ("gcc version %s\n", version_string
);
6345 notice ("gcc driver version %s executing gcc version %s\n",
6346 version_string
, compiler_version
);
6352 if (n_infiles
== added_libraries
)
6353 fatal ("no input files");
6355 /* Make a place to record the compiler output file names
6356 that correspond to the input files. */
6359 i
+= lang_specific_extra_outfiles
;
6360 outfiles
= xcalloc (i
, sizeof (char *));
6362 /* Record which files were specified explicitly as link input. */
6364 explicit_link_files
= xcalloc (1, n_infiles
);
6367 combine_inputs
= true;
6369 combine_inputs
= false;
6371 for (i
= 0; (int) i
< n_infiles
; i
++)
6373 const char *name
= infiles
[i
].name
;
6374 struct compiler
*compiler
= lookup_compiler (name
,
6376 infiles
[i
].language
);
6378 if (compiler
&& !(compiler
->combinable
))
6379 combine_inputs
= false;
6381 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6382 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6383 infiles
[i
].incompiler
= compiler
;
6387 input_file_compiler
= compiler
;
6388 infiles
[i
].incompiler
= compiler
;
6392 /* Since there is no compiler for this input file, assume it is a
6394 explicit_link_files
[i
] = 1;
6395 infiles
[i
].incompiler
= NULL
;
6397 infiles
[i
].compiled
= false;
6398 infiles
[i
].preprocessed
= false;
6401 if (combine_flag
&& save_temps_flag
)
6403 bool save_combine_inputs
= combine_inputs
;
6404 /* Must do a separate pre-processing pass for C & Objective-C files, to
6405 obtain individual .i files. */
6407 combine_inputs
= false;
6408 for (i
= 0; (int) i
< n_infiles
; i
++)
6410 int this_file_error
= 0;
6412 input_file_number
= i
;
6413 set_input (infiles
[i
].name
);
6414 if (infiles
[i
].incompiler
6415 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6416 input_file_compiler
= infiles
[i
].incompiler
;
6420 if (input_file_compiler
)
6422 if (input_file_compiler
->spec
[0] == '#')
6424 error ("%s: %s compiler not installed on this system",
6425 input_filename
, &input_file_compiler
->spec
[1]);
6426 this_file_error
= 1;
6430 value
= do_spec (input_file_compiler
->spec
);
6431 infiles
[i
].preprocessed
= true;
6432 if (have_o_argbuf_index
)
6433 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6436 infiles
[i
].incompiler
= lookup_compiler (infiles
[i
].name
,
6437 strlen (infiles
[i
].name
),
6438 infiles
[i
].language
);
6441 this_file_error
= 1;
6445 if (this_file_error
)
6447 delete_failure_queue ();
6451 clear_failure_queue ();
6453 combine_inputs
= save_combine_inputs
;
6456 for (i
= 0; (int) i
< n_infiles
; i
++)
6458 int this_file_error
= 0;
6460 /* Tell do_spec what to substitute for %i. */
6462 input_file_number
= i
;
6463 set_input (infiles
[i
].name
);
6465 if (infiles
[i
].compiled
)
6468 /* Use the same thing in %o, unless cp->spec says otherwise. */
6470 outfiles
[i
] = input_filename
;
6472 /* Figure out which compiler from the file's suffix. */
6474 if (! combine_inputs
)
6476 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6477 infiles
[i
].language
);
6479 input_file_compiler
= infiles
[i
].incompiler
;
6481 if (input_file_compiler
)
6483 /* Ok, we found an applicable compiler. Run its spec. */
6485 if (input_file_compiler
->spec
[0] == '#')
6487 error ("%s: %s compiler not installed on this system",
6488 input_filename
, &input_file_compiler
->spec
[1]);
6489 this_file_error
= 1;
6493 value
= do_spec (input_file_compiler
->spec
);
6494 infiles
[i
].compiled
= true;
6496 this_file_error
= 1;
6500 /* If this file's name does not contain a recognized suffix,
6501 record it as explicit linker input. */
6504 explicit_link_files
[i
] = 1;
6506 /* Clear the delete-on-failure queue, deleting the files in it
6507 if this compilation failed. */
6509 if (this_file_error
)
6511 delete_failure_queue ();
6515 /* If this compilation succeeded, don't delete those files later. */
6516 clear_failure_queue ();
6519 /* Reset the output file name to the first input file name, for use
6520 with %b in LINK_SPEC on a target that prefers not to emit a.out
6523 set_input (infiles
[0].name
);
6525 if (error_count
== 0)
6527 /* Make sure INPUT_FILE_NUMBER points to first available open
6529 input_file_number
= n_infiles
;
6530 if (lang_specific_pre_link ())
6534 /* Determine if there are any linker input files. */
6535 num_linker_inputs
= 0;
6536 for (i
= 0; (int) i
< n_infiles
; i
++)
6537 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6538 num_linker_inputs
++;
6540 /* Run ld to link all the compiler output files. */
6542 if (num_linker_inputs
> 0 && error_count
== 0)
6544 int tmp
= execution_count
;
6546 /* We'll use ld if we can't find collect2. */
6547 if (! strcmp (linker_name_spec
, "collect2"))
6549 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6551 linker_name_spec
= "ld";
6553 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6555 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6556 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6558 value
= do_spec (link_command_spec
);
6561 linker_was_run
= (tmp
!= execution_count
);
6564 /* If options said don't run linker,
6565 complain about input files to be given to the linker. */
6567 if (! linker_was_run
&& error_count
== 0)
6568 for (i
= 0; (int) i
< n_infiles
; i
++)
6569 if (explicit_link_files
[i
])
6570 error ("%s: linker input file unused because linking not done",
6573 /* Delete some or all of the temporary files we made. */
6576 delete_failure_queue ();
6577 delete_temp_files ();
6579 if (print_help_list
)
6581 printf (("\nFor bug reporting instructions, please see:\n"));
6582 printf ("%s\n", bug_report_url
);
6585 return (signal_count
!= 0 ? 2
6586 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6590 /* Find the proper compilation spec for the file name NAME,
6591 whose length is LENGTH. LANGUAGE is the specified language,
6592 or 0 if this file is to be passed to the linker. */
6594 static struct compiler
*
6595 lookup_compiler (const char *name
, size_t length
, const char *language
)
6597 struct compiler
*cp
;
6599 /* If this was specified by the user to be a linker input, indicate that. */
6600 if (language
!= 0 && language
[0] == '*')
6603 /* Otherwise, look for the language, if one is spec'd. */
6606 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6607 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6610 error ("language %s not recognized", language
);
6614 /* Look for a suffix. */
6615 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6617 if (/* The suffix `-' matches only the file name `-'. */
6618 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6619 || (strlen (cp
->suffix
) < length
6620 /* See if the suffix matches the end of NAME. */
6621 && !strcmp (cp
->suffix
,
6622 name
+ length
- strlen (cp
->suffix
))
6627 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6628 /* Look again, but case-insensitively this time. */
6630 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6632 if (/* The suffix `-' matches only the file name `-'. */
6633 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6634 || (strlen (cp
->suffix
) < length
6635 /* See if the suffix matches the end of NAME. */
6636 && ((!strcmp (cp
->suffix
,
6637 name
+ length
- strlen (cp
->suffix
))
6638 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6639 && !strcasecmp (cp
->suffix
,
6640 name
+ length
- strlen (cp
->suffix
)))
6646 if (cp
>= compilers
)
6648 if (cp
->spec
[0] != '@')
6649 /* A non-alias entry: return it. */
6652 /* An alias entry maps a suffix to a language.
6653 Search for the language; pass 0 for NAME and LENGTH
6654 to avoid infinite recursion if language not found. */
6655 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6661 save_string (const char *s
, int len
)
6663 char *result
= xmalloc (len
+ 1);
6665 memcpy (result
, s
, len
);
6671 pfatal_with_name (const char *name
)
6673 perror_with_name (name
);
6674 delete_temp_files ();
6679 perror_with_name (const char *name
)
6681 error ("%s: %s", name
, xstrerror (errno
));
6685 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6689 int save_errno
= errno
;
6691 /* Space for trailing '\0' is in %s. */
6692 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6693 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6699 pfatal_with_name (errmsg_fmt
);
6702 /* Output an error message and exit. */
6707 fatal ("internal gcc abort");
6710 /* Output an error message and exit. */
6713 fatal (const char *msgid
, ...)
6717 va_start (ap
, msgid
);
6719 fprintf (stderr
, "%s: ", programname
);
6720 vfprintf (stderr
, _(msgid
), ap
);
6722 fprintf (stderr
, "\n");
6723 delete_temp_files ();
6728 error (const char *msgid
, ...)
6732 va_start (ap
, msgid
);
6733 fprintf (stderr
, "%s: ", programname
);
6734 vfprintf (stderr
, _(msgid
), ap
);
6737 fprintf (stderr
, "\n");
6741 notice (const char *msgid
, ...)
6745 va_start (ap
, msgid
);
6746 vfprintf (stderr
, _(msgid
), ap
);
6751 validate_switches_from_spec (const char *spec
)
6753 const char *p
= spec
;
6756 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6757 /* We have a switch spec. */
6758 p
= validate_switches (p
+ 1);
6762 validate_all_switches (void)
6764 struct compiler
*comp
;
6765 struct spec_list
*spec
;
6767 for (comp
= compilers
; comp
->spec
; comp
++)
6768 validate_switches_from_spec (comp
->spec
);
6770 /* Look through the linked list of specs read from the specs file. */
6771 for (spec
= specs
; spec
; spec
= spec
->next
)
6772 validate_switches_from_spec (*spec
->ptr_spec
);
6774 validate_switches_from_spec (link_command_spec
);
6777 /* Look at the switch-name that comes after START
6778 and mark as valid all supplied switches that match it. */
6781 validate_switches (const char *start
)
6783 const char *p
= start
;
6787 bool suffix
= false;
6788 bool starred
= false;
6790 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6803 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6804 || *p
== ',' || *p
== '.' || *p
== '@')
6809 starred
= true, p
++;
6815 /* Mark all matching switches as valid. */
6816 for (i
= 0; i
< n_switches
; i
++)
6817 if (!strncmp (switches
[i
].part1
, atom
, len
)
6818 && (starred
|| switches
[i
].part1
[len
] == 0))
6819 switches
[i
].validated
= 1;
6823 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6826 if (*p
&& p
[-1] == ':')
6828 while (*p
&& *p
!= ';' && *p
!= '}')
6833 if (*p
== '{' || *p
== '<')
6834 p
= validate_switches (p
+1);
6835 else if (p
[0] == 'W' && p
[1] == '{')
6836 p
= validate_switches (p
+2);
6843 if (*p
&& p
[-1] == ';')
6857 static struct mdswitchstr
*mdswitches
;
6858 static int n_mdswitches
;
6860 /* Check whether a particular argument was used. The first time we
6861 canonicalize the switches to keep only the ones we care about. */
6864 used_arg (const char *p
, int len
)
6869 const char *replace
;
6874 static struct mswitchstr
*mswitches
;
6875 static int n_mswitches
;
6880 struct mswitchstr
*matches
;
6884 /* Break multilib_matches into the component strings of string
6885 and replacement string. */
6886 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6890 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6892 q
= multilib_matches
;
6902 matches
[i
].len
= q
- matches
[i
].str
;
6904 matches
[i
].replace
= ++q
;
6905 while (*q
!= ';' && *q
!= '\0')
6911 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6917 /* Now build a list of the replacement string for switches that we care
6918 about. Make sure we allocate at least one entry. This prevents
6919 xmalloc from calling fatal, and prevents us from re-executing this
6922 = xmalloc (sizeof (struct mswitchstr
)
6923 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6924 for (i
= 0; i
< n_switches
; i
++)
6925 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
6927 int xlen
= strlen (switches
[i
].part1
);
6928 for (j
= 0; j
< cnt
; j
++)
6929 if (xlen
== matches
[j
].len
6930 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6932 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6933 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6934 mswitches
[n_mswitches
].replace
= (char *) 0;
6935 mswitches
[n_mswitches
].rep_len
= 0;
6941 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6942 on the command line nor any options mutually incompatible with
6944 for (i
= 0; i
< n_mdswitches
; i
++)
6948 for (q
= multilib_options
; *q
!= '\0'; q
++)
6954 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6955 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6957 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6964 if (*q
!= ' ' && *q
!= '\0')
6966 while (*r
!= ' ' && *r
!= '\0')
6969 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6972 if (used_arg (r
, q
- r
))
6977 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6978 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6979 mswitches
[n_mswitches
].replace
= (char *) 0;
6980 mswitches
[n_mswitches
].rep_len
= 0;
6993 for (i
= 0; i
< n_mswitches
; i
++)
6994 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7001 default_arg (const char *p
, int len
)
7005 for (i
= 0; i
< n_mdswitches
; i
++)
7006 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7012 /* Work out the subdirectory to use based on the options. The format of
7013 multilib_select is a list of elements. Each element is a subdirectory
7014 name followed by a list of options followed by a semicolon. The format
7015 of multilib_exclusions is the same, but without the preceding
7016 directory. First gcc will check the exclusions, if none of the options
7017 beginning with an exclamation point are present, and all of the other
7018 options are present, then we will ignore this completely. Passing
7019 that, gcc will consider each multilib_select in turn using the same
7020 rules for matching the options. If a match is found, that subdirectory
7024 set_multilib_dir (void)
7027 unsigned int this_path_len
;
7028 const char *this_path
, *this_arg
;
7029 const char *start
, *end
;
7031 int ok
, ndfltok
, first
;
7034 start
= multilib_defaults
;
7035 while (*start
== ' ' || *start
== '\t')
7037 while (*start
!= '\0')
7040 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7042 while (*start
== ' ' || *start
== '\t')
7050 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
7051 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7053 while (*start
== ' ' || *start
== '\t')
7059 for (end
= start
+ 1;
7060 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7063 obstack_grow (&multilib_obstack
, start
, end
- start
);
7064 obstack_1grow (&multilib_obstack
, 0);
7065 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7066 mdswitches
[i
++].len
= end
- start
;
7073 p
= multilib_exclusions
;
7076 /* Ignore newlines. */
7083 /* Check the arguments. */
7097 while (*p
!= ' ' && *p
!= ';')
7104 if (*this_arg
!= '!')
7112 ok
= used_arg (this_arg
, p
- this_arg
);
7127 p
= multilib_select
;
7130 /* Ignore newlines. */
7137 /* Get the initial path. */
7145 this_path_len
= p
- this_path
;
7147 /* Check the arguments. */
7163 while (*p
!= ' ' && *p
!= ';')
7170 if (*this_arg
!= '!')
7178 /* If this is a default argument, we can just ignore it.
7179 This is true even if this_arg begins with '!'. Beginning
7180 with '!' does not mean that this argument is necessarily
7181 inappropriate for this library: it merely means that
7182 there is a more specific library which uses this
7183 argument. If this argument is a default, we need not
7184 consider that more specific library. */
7185 ok
= used_arg (this_arg
, p
- this_arg
);
7192 if (default_arg (this_arg
, p
- this_arg
))
7201 if (this_path_len
!= 1
7202 || this_path
[0] != '.')
7204 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7207 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7208 new_multilib_dir
[this_path_len
] = '\0';
7209 q
= strchr (new_multilib_dir
, ':');
7212 multilib_dir
= new_multilib_dir
;
7219 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7221 while (q
< end
&& *q
!= ':')
7225 char *new_multilib_os_dir
= xmalloc (end
- q
);
7226 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7227 new_multilib_os_dir
[end
- q
- 1] = '\0';
7228 multilib_os_dir
= new_multilib_os_dir
;
7236 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7237 && strcmp (multilib_os_dir
, ".") == 0)
7239 free ((char *) multilib_os_dir
);
7240 multilib_os_dir
= NULL
;
7242 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7243 multilib_os_dir
= multilib_dir
;
7246 /* Print out the multiple library subdirectory selection
7247 information. This prints out a series of lines. Each line looks
7248 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7249 required. Only the desired options are printed out, the negative
7250 matches. The options are print without a leading dash. There are
7251 no spaces to make it easy to use the information in the shell.
7252 Each subdirectory is printed only once. This assumes the ordering
7253 generated by the genmultilib script. Also, we leave out ones that match
7257 print_multilib_info (void)
7259 const char *p
= multilib_select
;
7260 const char *last_path
= 0, *this_path
;
7262 unsigned int last_path_len
= 0;
7267 /* Ignore newlines. */
7274 /* Get the initial path. */
7283 /* When --disable-multilib was used but target defines
7284 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7285 to find multilib_os_dir, so skip them from output. */
7286 if (this_path
[0] == '.' && this_path
[1] == ':')
7289 /* Check for matches with the multilib_exclusions. We don't bother
7290 with the '!' in either list. If any of the exclusion rules match
7291 all of its options with the select rule, we skip it. */
7293 const char *e
= multilib_exclusions
;
7294 const char *this_arg
;
7299 /* Ignore newlines. */
7306 /* Check the arguments. */
7323 while (*e
!= ' ' && *e
!= ';')
7334 int len
= e
- this_arg
;
7341 while (*q
!= ' ' && *q
!= ';')
7348 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7349 default_arg (this_arg
, e
- this_arg
))
7379 /* If this is a duplicate, skip it. */
7380 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7381 && ! strncmp (last_path
, this_path
, last_path_len
));
7383 last_path
= this_path
;
7384 last_path_len
= p
- this_path
;
7387 /* If this directory requires any default arguments, we can skip
7388 it. We will already have printed a directory identical to
7389 this one which does not require that default argument. */
7407 while (*q
!= ' ' && *q
!= ';')
7415 && default_arg (arg
, q
- arg
))
7430 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7449 use_arg
= *p
!= '!';
7454 while (*p
!= ' ' && *p
!= ';')
7469 /* If there are extra options, print them now. */
7470 if (multilib_extra
&& *multilib_extra
)
7472 int print_at
= TRUE
;
7475 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7496 /* if-exists built-in spec function.
7498 Checks to see if the file specified by the absolute pathname in
7499 ARGS exists. Returns that pathname if found.
7501 The usual use for this function is to check for a library file
7502 (whose name has been expanded with %s). */
7505 if_exists_spec_function (int argc
, const char **argv
)
7507 /* Must have only one argument. */
7508 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7514 /* if-exists-else built-in spec function.
7516 This is like if-exists, but takes an additional argument which
7517 is returned if the first argument does not exist. */
7520 if_exists_else_spec_function (int argc
, const char **argv
)
7522 /* Must have exactly two arguments. */
7526 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))