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 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"
78 #if ! defined( SIGCHLD ) && defined( SIGCLD )
79 # define SIGCHLD SIGCLD
87 #ifdef HAVE_SYS_RESOURCE_H
88 #include <sys/resource.h>
90 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
91 extern int getrusage
PARAMS ((int, struct rusage
*));
94 /* By default there is no special suffix for target executables. */
95 /* FIXME: when autoconf is fixed, remove the host check - dj */
96 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
97 #define HAVE_TARGET_EXECUTABLE_SUFFIX
100 /* By default there is no special suffix for host executables. */
101 #ifdef HOST_EXECUTABLE_SUFFIX
102 #define HAVE_HOST_EXECUTABLE_SUFFIX
104 #define HOST_EXECUTABLE_SUFFIX ""
107 /* By default, the suffix for target object files is ".o". */
108 #ifdef TARGET_OBJECT_SUFFIX
109 #define HAVE_TARGET_OBJECT_SUFFIX
111 #define TARGET_OBJECT_SUFFIX ".o"
115 /* FIXME: the location independence code for VMS is hairier than this,
116 and hasn't been written. */
122 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
124 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
125 #ifndef LIBRARY_PATH_ENV
126 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
130 #define kill(p,s) raise(s)
133 /* If a stage of compilation returns an exit status >= 1,
134 compilation of that file ceases. */
136 #define MIN_FATAL_STATUS 1
138 /* Flag set by cppspec.c to 1. */
141 /* Flag saying to pass the greatest exit code returned by a sub-process
142 to the calling program. */
143 static int pass_exit_codes
;
145 /* Definition of string containing the arguments given to configure. */
146 #include "configargs.h"
148 /* Flag saying to print the directories gcc will search through looking for
149 programs, libraries, etc. */
151 static int print_search_dirs
;
153 /* Flag saying to print the full filename of this file
154 as found through our usual search mechanism. */
156 static const char *print_file_name
= NULL
;
158 /* As print_file_name, but search for executable file. */
160 static const char *print_prog_name
= NULL
;
162 /* Flag saying to print the relative path we'd use to
163 find libgcc.a given the current compiler flags. */
165 static int print_multi_directory
;
167 /* Flag saying to print the relative path we'd use to
168 find OS libraries given the current compiler flags. */
170 static int print_multi_os_directory
;
172 /* Flag saying to print the list of subdirectories and
173 compiler flags used to select them in a standard form. */
175 static int print_multi_lib
;
177 /* Flag saying to print the command line options understood by gcc and its
180 static int print_help_list
;
182 /* Flag indicating whether we should print the command and arguments */
184 static int verbose_flag
;
186 /* Flag indicating whether we should ONLY print the command and
187 arguments (like verbose_flag) without executing the command.
188 Displayed arguments are quoted so that the generated command
189 line is suitable for execution. This is intended for use in
190 shell scripts to capture the driver-generated command line. */
191 static int verbose_only_flag
;
193 /* Flag indicating to print target specific command line options. */
195 static int target_help_flag
;
197 /* Flag indicating whether we should report subprocess execution times
198 (if this is supported by the system - see pexecute.c). */
200 static int report_times
;
202 /* Nonzero means place this string before uses of /, so that include
203 and library files can be found in an alternate location. */
205 #ifdef TARGET_SYSTEM_ROOT
206 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
208 static const char *target_system_root
= 0;
211 /* Nonzero means pass the updated target_system_root to the compiler. */
213 static int target_system_root_changed
;
215 /* Nonzero means write "temp" files in source directory
216 and use the source file's name in them, and don't delete them. */
218 static int save_temps_flag
;
220 /* Nonzero means use pipes to communicate between subprocesses.
221 Overridden by either of the above two flags. */
223 static int use_pipes
;
225 /* The compiler version. */
227 static const char *compiler_version
;
229 /* The target version specified with -V */
231 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
233 /* The target machine specified with -b. */
235 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
237 /* Nonzero if cross-compiling.
238 When -b is used, the value comes from the `specs' file. */
241 static const char *cross_compile
= "1";
243 static const char *cross_compile
= "0";
246 #ifdef MODIFY_TARGET_NAME
248 /* Information on how to alter the target name based on a command-line
249 switch. The only case we support now is simply appending or deleting a
250 string to or from the end of the first part of the configuration name. */
252 static const struct modify_target
254 const char *const sw
;
255 const enum add_del
{ADD
, DELETE
} add_del
;
256 const char *const str
;
258 modify_target
[] = MODIFY_TARGET_NAME
;
261 /* The number of errors that have occurred; the link phase will not be
262 run if this is nonzero. */
263 static int error_count
= 0;
265 /* Greatest exit code of sub-processes that has been encountered up to
267 static int greatest_status
= 1;
269 /* This is the obstack which we use to allocate many strings. */
271 static struct obstack obstack
;
273 /* This is the obstack to build an environment variable to pass to
274 collect2 that describes all of the relevant switches of what to
275 pass the compiler in building the list of pointers to constructors
278 static struct obstack collect_obstack
;
280 /* These structs are used to collect resource usage information for
282 #ifdef HAVE_GETRUSAGE
283 static struct rusage rus
, prus
;
286 /* Forward declaration for prototypes. */
289 static void init_spec
PARAMS ((void));
290 static void store_arg
PARAMS ((const char *, int, int));
291 static char *load_specs
PARAMS ((const char *));
292 static void read_specs
PARAMS ((const char *, int));
293 static void set_spec
PARAMS ((const char *, const char *));
294 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
295 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
296 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
297 static int access_check
PARAMS ((const char *, int));
298 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *,
300 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
301 const char *, int, int, int *, int));
302 static void add_sysrooted_prefix
PARAMS ((struct path_prefix
*, const char *,
303 const char *, int, int, int *, int));
304 static void translate_options
PARAMS ((int *, const char *const **));
305 static char *skip_whitespace
PARAMS ((char *));
306 static void delete_if_ordinary
PARAMS ((const char *));
307 static void delete_temp_files
PARAMS ((void));
308 static void delete_failure_queue
PARAMS ((void));
309 static void clear_failure_queue
PARAMS ((void));
310 static int check_live_switch
PARAMS ((int, int));
311 static const char *handle_braces
PARAMS ((const char *));
312 static inline bool input_suffix_matches
PARAMS ((const char *,
314 static inline bool switch_matches
PARAMS ((const char *,
316 static inline void mark_matching_switches
PARAMS ((const char *,
318 static inline void process_marked_switches
PARAMS ((void));
319 static const char *process_brace_body
PARAMS ((const char *, const char *,
320 const char *, int, int));
321 static const struct spec_function
*lookup_spec_function
PARAMS ((const char *));
322 static const char *eval_spec_function
PARAMS ((const char *, const char *));
323 static const char *handle_spec_function
PARAMS ((const char *));
324 static char *save_string
PARAMS ((const char *, int));
325 static void set_collect_gcc_options
PARAMS ((void));
326 static int do_spec_1
PARAMS ((const char *, int, const char *));
327 static int do_spec_2
PARAMS ((const char *));
328 static void do_self_spec
PARAMS ((const char *));
329 static const char *find_file
PARAMS ((const char *));
330 static int is_directory
PARAMS ((const char *, const char *, int));
331 static const char *validate_switches
PARAMS ((const char *));
332 static void validate_all_switches
PARAMS ((void));
333 static inline void validate_switches_from_spec
PARAMS ((const char *));
334 static void give_switch
PARAMS ((int, int));
335 static int used_arg
PARAMS ((const char *, int));
336 static int default_arg
PARAMS ((const char *, int));
337 static void set_multilib_dir
PARAMS ((void));
338 static void print_multilib_info
PARAMS ((void));
339 static void perror_with_name
PARAMS ((const char *));
340 static void pfatal_pexecute
PARAMS ((const char *, const char *))
342 static void notice
PARAMS ((const char *, ...))
344 static void display_help
PARAMS ((void));
345 static void add_preprocessor_option
PARAMS ((const char *, int));
346 static void add_assembler_option
PARAMS ((const char *, int));
347 static void add_linker_option
PARAMS ((const char *, int));
348 static void process_command
PARAMS ((int, const char *const *));
349 static int execute
PARAMS ((void));
350 static void alloc_args
PARAMS ((void));
351 static void clear_args
PARAMS ((void));
352 static void fatal_error
PARAMS ((int));
353 #ifdef ENABLE_SHARED_LIBGCC
354 static void init_gcc_specs
PARAMS ((struct obstack
*,
355 const char *, const char *,
358 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
359 static const char *convert_filename
PARAMS ((const char *, int, int));
362 static const char *if_exists_spec_function
PARAMS ((int, const char **));
363 static const char *if_exists_else_spec_function
PARAMS ((int, const char **));
365 /* The Specs Language
367 Specs are strings containing lines, each of which (if not blank)
368 is made up of a program name, and arguments separated by spaces.
369 The program name must be exact and start from root, since no path
370 is searched and it is unreliable to depend on the current working directory.
371 Redirection of input or output is not supported; the subprograms must
372 accept filenames saying what files to read and write.
374 In addition, the specs can contain %-sequences to substitute variable text
375 or for conditional text. Here is a table of all defined %-sequences.
376 Note that spaces are not generated automatically around the results of
377 expanding these sequences; therefore, you can concatenate them together
378 or with constant text in a single argument.
380 %% substitute one % into the program name or argument.
381 %i substitute the name of the input file being processed.
382 %b substitute the basename of the input file being processed.
383 This is the substring up to (and not including) the last period
384 and not including the directory.
385 %B same as %b, but include the file suffix (text after the last period).
387 substitute a file name that has suffix SUFFIX and is chosen
388 once per compilation, and mark the argument a la %d. To reduce
389 exposure to denial-of-service attacks, the file name is now
390 chosen in a way that is hard to predict even when previously
391 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
392 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
393 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
394 had been pre-processed. Previously, %g was simply substituted
395 with a file name chosen once per compilation, without regard
396 to any appended suffix (which was therefore treated just like
397 ordinary text), making such attacks more likely to succeed.
399 like %g, but if -pipe is in effect, expands simply to "-".
401 like %g, but if -pipe is in effect, expands to nothing. (We have both
402 %| and %m to accommodate differences between system assemblers; see
403 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
405 like %g, but generates a new temporary file name even if %uSUFFIX
408 substitutes the last file name generated with %uSUFFIX, generating a
409 new one if there is no such last file name. In the absence of any
410 %uSUFFIX, this is just like %gSUFFIX, except they don't share
411 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
412 would involve the generation of two distinct file names, one
413 for each `%g.s' and another for each `%U.s'. Previously, %U was
414 simply substituted with a file name chosen for the previous %u,
415 without regard to any appended suffix.
417 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
418 writable, and if save-temps is off; otherwise, substitute the name
419 of a temporary file, just like %u. This temporary file is not
420 meant for communication between processes, but rather as a junk
423 substitutes .SUFFIX for the suffixes of a matched switch's args when
424 it is subsequently output with %*. SUFFIX is terminated by the next
426 %d marks the argument containing or following the %d as a
427 temporary file name, so that that file will be deleted if CC exits
428 successfully. Unlike %g, this contributes no text to the argument.
429 %w marks the argument containing or following the %w as the
430 "output file" of this compilation. This puts the argument
431 into the sequence of arguments that %o will substitute later.
432 %V indicates that this compilation produces no "output file".
434 like %{...} but mark last argument supplied within
435 as a file to be deleted on failure.
436 %o substitutes the names of all the output files, with spaces
437 automatically placed around them. You should write spaces
438 around the %o as well or the results are undefined.
439 %o is for use in the specs for running the linker.
440 Input files whose names have no recognized suffix are not compiled
441 at all, but they are included among the output files, so they will
443 %O substitutes the suffix for object files. Note that this is
444 handled specially when it immediately follows %g, %u, or %U
445 (with or without a suffix argument) because of the need for
446 those to form complete file names. The handling is such that
447 %O is treated exactly as if it had already been substituted,
448 except that %g, %u, and %U do not currently support additional
449 SUFFIX characters following %O as they would following, for
451 %p substitutes the standard macro predefinitions for the
452 current target machine. Use this when running cpp.
453 %P like %p, but puts `__' before and after the name of each macro.
454 (Except macros that already have __.)
456 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
457 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
458 and -B options) as necessary.
459 %s current argument is the name of a library or startup file of some sort.
460 Search for that file in a standard list of directories
461 and substitute the full name found.
462 %eSTR Print STR as an error message. STR is terminated by a newline.
463 Use this when inconsistent options are detected.
464 %nSTR Print STR as a notice. STR is terminated by a newline.
465 %x{OPTION} Accumulate an option for %X.
466 %X Output the accumulated linker options specified by compilations.
467 %Y Output the accumulated assembler options specified by compilations.
468 %Z Output the accumulated preprocessor options specified by compilations.
469 %v1 Substitute the major version number of GCC.
470 (For version 2.5.3, this is 2.)
471 %v2 Substitute the minor version number of GCC.
472 (For version 2.5.3, this is 5.)
473 %v3 Substitute the patch level number of GCC.
474 (For version 2.5.3, this is 3.)
475 %a process ASM_SPEC as a spec.
476 This allows config.h to specify part of the spec for running as.
477 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
478 used here. This can be used to run a post-processor after the
479 assembler has done its job.
480 %D Dump out a -L option for each directory in startfile_prefixes.
481 If multilib_dir is set, extra entries are generated with it affixed.
482 %l process LINK_SPEC as a spec.
483 %L process LIB_SPEC as a spec.
484 %G process LIBGCC_SPEC as a spec.
485 %M output multilib_dir with directory separators replaced with "_";
486 if multilib_dir is not set or is ".", output "".
487 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
488 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
489 %C process CPP_SPEC as a spec.
490 %1 process CC1_SPEC as a spec.
491 %2 process CC1PLUS_SPEC as a spec.
492 %* substitute the variable part of a matched option. (See below.)
493 Note that each comma in the substituted string is replaced by
495 %<S remove all occurrences of -S from the command line.
496 Note - this command is position dependent. % commands in the
497 spec string before this one will see -S, % commands in the
498 spec string after this one will not.
499 %<S* remove all occurrences of all switches beginning with -S from the
502 Call the named function FUNCTION, passing it ARGS. ARGS is
503 first processed as a nested spec string, then split into an
504 argument vector in the usual fashion. The function returns
505 a string which is processed as if it had appeared literally
506 as part of the current spec.
507 %{S} substitutes the -S switch, if that switch was given to CC.
508 If that switch was not specified, this substitutes nothing.
509 Here S is a metasyntactic variable.
510 %{S*} substitutes all the switches specified to CC whose names start
511 with -S. This is used for -o, -I, etc; switches that take
512 arguments. CC considers `-o foo' as being one switch whose
513 name starts with `o'. %{o*} would substitute this text,
514 including the space; thus, two arguments would be generated.
515 %{S*&T*} likewise, but preserve order of S and T options (the order
516 of S and T in the spec is not significant). Can be any number
517 of ampersand-separated variables; for each the wild card is
518 optional. Useful for CPP as %{D*&U*&A*}.
520 %{S:X} substitutes X, if the -S switch was given to CC.
521 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
522 %{S*:X} substitutes X if one or more switches whose names start
523 with -S was given to CC. Normally X is substituted only
524 once, no matter how many such switches appeared. However,
525 if %* appears somewhere in X, then X will be substituted
526 once for each matching switch, with the %* replaced by the
527 part of that switch that matched the '*'.
528 %{.S:X} substitutes X, if processing a file with suffix S.
529 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
531 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
532 combined with !, ., and * as above binding stronger than the OR.
533 If %* appears in X, all of the alternatives must be starred, and
534 only the first matching alternative is substituted.
535 %{S:X; if S was given to CC, substitutes X;
536 T:Y; else if T was given to CC, substitutes Y;
537 :D} else substitutes D. There can be as many clauses as you need.
538 This may be combined with ., !, |, and * as above.
540 %(Spec) processes a specification defined in a specs file as *Spec:
541 %[Spec] as above, but put __ around -D arguments
543 The conditional text X in a %{S:X} or similar construct may contain
544 other nested % constructs or spaces, or even newlines. They are
545 processed as usual, as described above. Trailing white space in X is
546 ignored. White space may also appear anywhere on the left side of the
547 colon in these constructs, except between . or * and the corresponding
550 The -O, -f, -m, and -W switches are handled specifically in these
551 constructs. If another value of -O or the negated form of a -f, -m, or
552 -W switch is found later in the command line, the earlier switch
553 value is ignored, except with {S*} where S is just one letter; this
554 passes all matching options.
556 The character | at the beginning of the predicate text is used to indicate
557 that a command should be piped to the following command, but only if -pipe
560 Note that it is built into CC which switches take arguments and which
561 do not. You might think it would be useful to generalize this to
562 allow each compiler's spec to say which switches take arguments. But
563 this cannot be done in a consistent fashion. CC cannot even decide
564 which input files have been specified without knowing which switches
565 take arguments, and it must know which input files to compile in order
566 to tell which compilers to run.
568 CC also knows implicitly that arguments starting in `-l' are to be
569 treated as compiler output files, and passed to the linker in their
570 proper position among the other output files. */
572 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
574 /* config.h can define ASM_SPEC to provide extra args to the assembler
575 or extra switch-translations. */
580 /* config.h can define ASM_FINAL_SPEC to run a post processor after
581 the assembler has run. */
582 #ifndef ASM_FINAL_SPEC
583 #define ASM_FINAL_SPEC ""
586 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
587 or extra switch-translations. */
592 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
593 or extra switch-translations. */
598 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
599 or extra switch-translations. */
601 #define CC1PLUS_SPEC ""
604 /* config.h can define LINK_SPEC to provide extra args to the linker
605 or extra switch-translations. */
610 /* config.h can define LIB_SPEC to override the default libraries. */
612 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
615 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
618 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
619 /* Have gcc do the search for libgcc.a. */
620 #define LIBGCC_SPEC "libgcc.a%s"
622 #define LIBGCC_SPEC "-lgcc"
626 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
627 #ifndef STARTFILE_SPEC
628 #define STARTFILE_SPEC \
629 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
632 /* config.h can define SWITCHES_NEED_SPACES to control which options
633 require spaces between the option and the argument. */
634 #ifndef SWITCHES_NEED_SPACES
635 #define SWITCHES_NEED_SPACES ""
638 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
640 #define ENDFILE_SPEC ""
644 #define LINKER_NAME "collect2"
647 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
649 #ifndef ASM_DEBUG_SPEC
650 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
651 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
652 # define ASM_DEBUG_SPEC \
653 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
654 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
655 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
657 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
658 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
660 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
661 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
665 #ifndef ASM_DEBUG_SPEC
666 # define ASM_DEBUG_SPEC ""
669 /* Here is the spec for running the linker, after compiling all files. */
671 /* This is overridable by the target in case they need to specify the
672 -lgcc and -lc order specially, yet not require them to override all
673 of LINK_COMMAND_SPEC. */
674 #ifndef LINK_GCC_C_SEQUENCE_SPEC
675 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
678 /* -u* was put back because both BSD and SysV seem to support it. */
679 /* %{static:} simply prevents an error message if the target machine
680 doesn't handle -static. */
681 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
682 scripts which exist in user specified directories, or in standard
684 #ifndef LINK_COMMAND_SPEC
685 #define LINK_COMMAND_SPEC "\
686 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
687 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
688 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
689 %{static:} %{L*} %(link_libgcc) %o %{fprofile-arcs:-lgcov}\
690 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
691 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
694 #ifndef LINK_LIBGCC_SPEC
695 # ifdef LINK_LIBGCC_SPECIAL
696 /* Don't generate -L options for startfile prefix list. */
697 # define LINK_LIBGCC_SPEC ""
699 /* Do generate them. */
700 # define LINK_LIBGCC_SPEC "%D"
704 #ifndef STARTFILE_PREFIX_SPEC
705 # define STARTFILE_PREFIX_SPEC ""
708 static const char *asm_debug
;
709 static const char *cpp_spec
= CPP_SPEC
;
710 static const char *cpp_predefines
= CPP_PREDEFINES
;
711 static const char *cc1_spec
= CC1_SPEC
;
712 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
713 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
714 static const char *asm_spec
= ASM_SPEC
;
715 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
716 static const char *link_spec
= LINK_SPEC
;
717 static const char *lib_spec
= LIB_SPEC
;
718 static const char *libgcc_spec
= LIBGCC_SPEC
;
719 static const char *endfile_spec
= ENDFILE_SPEC
;
720 static const char *startfile_spec
= STARTFILE_SPEC
;
721 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
722 static const char *linker_name_spec
= LINKER_NAME
;
723 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
724 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
725 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
727 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
728 There should be no need to override these in target dependent files,
729 but we need to copy them to the specs file so that newer versions
730 of the GCC driver can correctly drive older tool chains with the
731 appropriate -B options. */
733 /* When cpplib handles traditional preprocessing, get rid of this, and
734 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
735 that we default the front end language better. */
736 static const char *trad_capable_cpp
=
737 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
739 /* We don't wrap .d files in %W{} since a missing .d file, and
740 therefore no dependency entry, confuses make into thinking a .o
741 file that happens to exist is up-to-date. */
742 static const char *cpp_unique_options
=
743 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
744 %{CC:%{!E:%eGNU C does not support -CC without using -E}}\
745 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %I\
746 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
747 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
748 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
749 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
750 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
751 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
752 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
755 /* This contains cpp options which are common with cc1_options and are passed
756 only when preprocessing only to avoid duplication. We pass the cc1 spec
757 options to the preprocessor so that it the cc1 spec may manipulate
758 options used to set target flags. Those special target flags settings may
759 in turn cause preprocessor symbols to be defined specially. */
760 static const char *cpp_options
=
761 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
764 /* This contains cpp options which are not passed when the preprocessor
765 output will be used by another program. */
766 static const char *cpp_debug_options
= "%{d*}";
768 /* NB: This is shared amongst all front-ends. */
769 static const char *cc1_options
=
770 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
771 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
772 -auxbase%{c|S:%{o*:-strip %*}%{!o*: %b}}%{!c:%{!S: %b}}\
773 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
774 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
775 %{Qn:-fno-ident} %{--help:--help}\
776 %{--target-help:--target-help}\
777 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
778 %{fsyntax-only:-o %j} %{-param*}";
780 static const char *asm_options
=
781 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
783 static const char *invoke_as
=
784 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
785 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
787 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
790 /* Some compilers have limits on line lengths, and the multilib_select
791 and/or multilib_matches strings can be very long, so we build them at
793 static struct obstack multilib_obstack
;
794 static const char *multilib_select
;
795 static const char *multilib_matches
;
796 static const char *multilib_defaults
;
797 static const char *multilib_exclusions
;
798 #include "multilib.h"
800 /* Check whether a particular argument is a default argument. */
802 #ifndef MULTILIB_DEFAULTS
803 #define MULTILIB_DEFAULTS { "" }
806 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
808 #ifndef DRIVER_SELF_SPECS
809 #define DRIVER_SELF_SPECS ""
812 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
816 struct user_specs
*next
;
817 const char *filename
;
820 static struct user_specs
*user_specs_head
, *user_specs_tail
;
822 /* This defines which switch letters take arguments. */
824 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
825 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
826 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
827 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
828 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'B' || (CHAR) == 'b')
830 #ifndef SWITCH_TAKES_ARG
831 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
834 /* This defines which multi-letter switches take arguments. */
836 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
837 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
838 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
839 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
840 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
841 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
842 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
843 || !strcmp (STR, "specs") \
844 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
846 #ifndef WORD_SWITCH_TAKES_ARG
847 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
850 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
851 /* This defines which switches stop a full compilation. */
852 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
853 ((CHAR) == 'c' || (CHAR) == 'S')
855 #ifndef SWITCH_CURTAILS_COMPILATION
856 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
857 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
861 /* Record the mapping from file suffixes for compilation specs. */
865 const char *suffix
; /* Use this compiler for input files
866 whose names end in this suffix. */
868 const char *spec
; /* To use this compiler, run this spec. */
870 const char *cpp_spec
; /* If non-NULL, substitute this spec
871 for `%C', rather than the usual
875 /* Pointer to a vector of `struct compiler' that gives the spec for
876 compiling a file, based on its suffix.
877 A file that does not end in any of these suffixes will be passed
878 unchanged to the loader and nothing else will be done to it.
880 An entry containing two 0s is used to terminate the vector.
882 If multiple entries match a file, the last matching one is used. */
884 static struct compiler
*compilers
;
886 /* Number of entries in `compilers', not counting the null terminator. */
888 static int n_compilers
;
890 /* The default list of file name suffixes and their compilation specs. */
892 static const struct compiler default_compilers
[] =
894 /* Add lists of suffixes of known languages here. If those languages
895 were not present when we built the driver, we will hit these copies
896 and be given a more meaningful error than "file not used since
897 linking is not done". */
898 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
899 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
900 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
901 {".CPP", "#C++", 0}, {".ii", "#C++", 0},
902 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
903 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
904 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
905 {".r", "#Ratfor", 0},
906 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
907 {".java", "#Java", 0}, {".class", "#Java", 0},
908 {".zip", "#Java", 0}, {".jar", "#Java", 0},
909 /* Next come the entries for C. */
912 /* cc1 has an integrated ISO C preprocessor. We should invoke the
913 external preprocessor if -save-temps is given. */
914 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
916 %{traditional|ftraditional:\
917 %eGNU C no longer supports -traditional without -E}\
918 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
919 %(cpp_options) %{save-temps:%b.i} %{!save-temps:%g.i} \n\
920 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} %(cc1_options)}\
921 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
922 cc1 %(cpp_unique_options) %(cc1_options)}}}\
923 %{!fsyntax-only:%(invoke_as)}}}}", 0},
925 "%{!E:%e-E required when input is from standard input}\
926 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0},
927 {".h", "@c-header", 0},
929 /* cc1 has an integrated ISO C preprocessor. We should invoke the
930 external preprocessor if -save-temps is given. */
931 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
933 %{save-temps|traditional-cpp:%(trad_capable_cpp) \
934 %(cpp_options) %b.i \n\
935 cc1 -fpreprocessed %b.i %(cc1_options)\
936 -o %g.s %{!o*:--output-pch=%i.gch}\
937 %W{o*:--output-pch=%*}%V}\
938 %{!save-temps:%{!traditional-cpp:\
939 cc1 %(cpp_unique_options) %(cc1_options)\
940 -o %g.s %{!o*:--output-pch=%i.gch}\
941 %W{o*:--output-pch=%*}%V}}}}}", 0},
942 {".i", "@cpp-output", 0},
944 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
945 {".s", "@assembler", 0},
947 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
948 {".S", "@assembler-with-cpp", 0},
949 {"@assembler-with-cpp",
950 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
951 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
952 %{E|M|MM:%(cpp_debug_options)}\
953 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
954 as %(asm_debug) %(asm_options) %|.s %A }}}}"
956 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
957 %{E|M|MM:%(cpp_debug_options)}\
958 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
959 as %(asm_debug) %(asm_options) %m.s %A }}}}"
964 /* Mark end of table */
968 /* Number of elements in default_compilers, not counting the terminator. */
970 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
972 /* A vector of options to give to the linker.
973 These options are accumulated by %x,
974 and substituted into the linker command with %X. */
975 static int n_linker_options
;
976 static char **linker_options
;
978 /* A vector of options to give to the assembler.
979 These options are accumulated by -Wa,
980 and substituted into the assembler command with %Y. */
981 static int n_assembler_options
;
982 static char **assembler_options
;
984 /* A vector of options to give to the preprocessor.
985 These options are accumulated by -Wp,
986 and substituted into the preprocessor command with %Z. */
987 static int n_preprocessor_options
;
988 static char **preprocessor_options
;
990 /* Define how to map long options into short ones. */
992 /* This structure describes one mapping. */
995 /* The long option's name. */
996 const char *const name
;
997 /* The equivalent short option. */
998 const char *const equivalent
;
999 /* Argument info. A string of flag chars; NULL equals no options.
1000 a => argument required.
1001 o => argument optional.
1002 j => join argument to equivalent, making one word.
1003 * => require other text after NAME as an argument. */
1004 const char *const arg_info
;
1007 /* This is the table of mappings. Mappings are tried sequentially
1008 for each option encountered; the first one that matches, wins. */
1010 static const struct option_map option_map
[] =
1012 {"--all-warnings", "-Wall", 0},
1013 {"--ansi", "-ansi", 0},
1014 {"--assemble", "-S", 0},
1015 {"--assert", "-A", "a"},
1016 {"--classpath", "-fclasspath=", "aj"},
1017 {"--bootclasspath", "-fbootclasspath=", "aj"},
1018 {"--CLASSPATH", "-fclasspath=", "aj"},
1019 {"--comments", "-C", 0},
1020 {"--comments-in-macros", "-CC", 0},
1021 {"--compile", "-c", 0},
1022 {"--debug", "-g", "oj"},
1023 {"--define-macro", "-D", "aj"},
1024 {"--dependencies", "-M", 0},
1025 {"--dump", "-d", "a"},
1026 {"--dumpbase", "-dumpbase", "a"},
1027 {"--entry", "-e", 0},
1028 {"--extra-warnings", "-W", 0},
1029 {"--for-assembler", "-Wa", "a"},
1030 {"--for-linker", "-Xlinker", "a"},
1031 {"--force-link", "-u", "a"},
1032 {"--imacros", "-imacros", "a"},
1033 {"--include", "-include", "a"},
1034 {"--include-barrier", "-I-", 0},
1035 {"--include-directory", "-I", "aj"},
1036 {"--include-directory-after", "-idirafter", "a"},
1037 {"--include-prefix", "-iprefix", "a"},
1038 {"--include-with-prefix", "-iwithprefix", "a"},
1039 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1040 {"--include-with-prefix-after", "-iwithprefix", "a"},
1041 {"--language", "-x", "a"},
1042 {"--library-directory", "-L", "a"},
1043 {"--machine", "-m", "aj"},
1044 {"--machine-", "-m", "*j"},
1045 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1046 {"--no-line-commands", "-P", 0},
1047 {"--no-precompiled-includes", "-noprecomp", 0},
1048 {"--no-standard-includes", "-nostdinc", 0},
1049 {"--no-standard-libraries", "-nostdlib", 0},
1050 {"--no-warnings", "-w", 0},
1051 {"--optimize", "-O", "oj"},
1052 {"--output", "-o", "a"},
1053 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1054 {"--param", "--param", "a"},
1055 {"--pedantic", "-pedantic", 0},
1056 {"--pedantic-errors", "-pedantic-errors", 0},
1057 {"--pipe", "-pipe", 0},
1058 {"--prefix", "-B", "a"},
1059 {"--preprocess", "-E", 0},
1060 {"--print-search-dirs", "-print-search-dirs", 0},
1061 {"--print-file-name", "-print-file-name=", "aj"},
1062 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1063 {"--print-missing-file-dependencies", "-MG", 0},
1064 {"--print-multi-lib", "-print-multi-lib", 0},
1065 {"--print-multi-directory", "-print-multi-directory", 0},
1066 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1067 {"--print-prog-name", "-print-prog-name=", "aj"},
1068 {"--profile", "-p", 0},
1069 {"--profile-blocks", "-a", 0},
1070 {"--quiet", "-q", 0},
1071 {"--resource", "-fcompile-resource=", "aj"},
1072 {"--save-temps", "-save-temps", 0},
1073 {"--shared", "-shared", 0},
1074 {"--silent", "-q", 0},
1075 {"--specs", "-specs=", "aj"},
1076 {"--static", "-static", 0},
1077 {"--std", "-std=", "aj"},
1078 {"--symbolic", "-symbolic", 0},
1079 {"--target", "-b", "a"},
1080 {"--time", "-time", 0},
1081 {"--trace-includes", "-H", 0},
1082 {"--traditional", "-traditional", 0},
1083 {"--traditional-cpp", "-traditional-cpp", 0},
1084 {"--trigraphs", "-trigraphs", 0},
1085 {"--undefine-macro", "-U", "aj"},
1086 {"--use-version", "-V", "a"},
1087 {"--user-dependencies", "-MM", 0},
1088 {"--verbose", "-v", 0},
1089 {"--warn-", "-W", "*j"},
1090 {"--write-dependencies", "-MD", 0},
1091 {"--write-user-dependencies", "-MMD", 0},
1096 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1097 static const struct {
1098 const char *const option_found
;
1099 const char *const replacements
;
1100 } target_option_translations
[] =
1102 TARGET_OPTION_TRANSLATE_TABLE
,
1107 /* Translate the options described by *ARGCP and *ARGVP.
1108 Make a new vector and store it back in *ARGVP,
1109 and store its length in *ARGVC. */
1112 translate_options (argcp
, argvp
)
1114 const char *const **argvp
;
1118 const char *const *argv
= *argvp
;
1119 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1121 (const char **) xmalloc (newvsize
);
1125 newv
[newindex
++] = argv
[i
++];
1129 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1133 target_option_translations
[tott_idx
].option_found
;
1136 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1143 for (sp
= target_option_translations
[tott_idx
].replacements
;
1150 newvsize
+= spaces
* sizeof (const char *);
1151 newv
= (const char **) xrealloc (newv
, newvsize
);
1153 sp
= target_option_translations
[tott_idx
].replacements
;
1162 newv
[newindex
++] = np
;
1163 while (*np
!= ' ' && *np
)
1174 if (target_option_translations
[tott_idx
].option_found
)
1178 /* Translate -- options. */
1179 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1182 /* Find a mapping that applies to this option. */
1183 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1185 size_t optlen
= strlen (option_map
[j
].name
);
1186 size_t arglen
= strlen (argv
[i
]);
1187 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1188 const char *arginfo
= option_map
[j
].arg_info
;
1193 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1195 const char *arg
= 0;
1197 if (arglen
< optlen
)
1200 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1201 if (strlen (option_map
[k
].name
) >= arglen
1202 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1204 error ("ambiguous abbreviation %s", argv
[i
]);
1208 if (k
!= ARRAY_SIZE (option_map
))
1212 if (arglen
> optlen
)
1214 /* If the option has an argument, accept that. */
1215 if (argv
[i
][optlen
] == '=')
1216 arg
= argv
[i
] + optlen
+ 1;
1218 /* If this mapping requires extra text at end of name,
1219 accept that as "argument". */
1220 else if (strchr (arginfo
, '*') != 0)
1221 arg
= argv
[i
] + optlen
;
1223 /* Otherwise, extra text at end means mismatch.
1224 Try other mappings. */
1229 else if (strchr (arginfo
, '*') != 0)
1231 error ("incomplete `%s' option", option_map
[j
].name
);
1235 /* Handle arguments. */
1236 if (strchr (arginfo
, 'a') != 0)
1242 error ("missing argument to `%s' option",
1243 option_map
[j
].name
);
1250 else if (strchr (arginfo
, '*') != 0)
1252 else if (strchr (arginfo
, 'o') == 0)
1255 error ("extraneous argument to `%s' option",
1256 option_map
[j
].name
);
1260 /* Store the translation as one argv elt or as two. */
1261 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1262 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1266 newv
[newindex
++] = option_map
[j
].equivalent
;
1267 newv
[newindex
++] = arg
;
1270 newv
[newindex
++] = option_map
[j
].equivalent
;
1278 /* Handle old-fashioned options--just copy them through,
1279 with their arguments. */
1280 else if (argv
[i
][0] == '-')
1282 const char *p
= argv
[i
] + 1;
1286 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1287 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1288 else if (WORD_SWITCH_TAKES_ARG (p
))
1289 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1290 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1293 else if (! strcmp (p
, "Xlinker"))
1295 else if (! strcmp (p
, "Xpreprocessor"))
1297 else if (! strcmp (p
, "Xassembler"))
1300 /* Watch out for an option at the end of the command line that
1301 is missing arguments, and avoid skipping past the end of the
1303 if (nskip
+ i
> argc
)
1308 newv
[newindex
++] = argv
[i
++];
1313 /* Ordinary operands, or +e options. */
1314 newv
[newindex
++] = argv
[i
++];
1329 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1330 be considered whitespace. */
1331 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1333 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1347 /* Structures to keep track of prefixes to try when looking for files. */
1351 const char *prefix
; /* String to prepend to the path. */
1352 struct prefix_list
*next
; /* Next in linked list. */
1353 int require_machine_suffix
; /* Don't use without machine_suffix. */
1354 /* 2 means try both machine_suffix and just_machine_suffix. */
1355 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1356 int priority
; /* Sort key - priority within list. */
1357 int os_multilib
; /* 1 if OS multilib scheme should be used,
1358 0 for GCC multilib scheme. */
1363 struct prefix_list
*plist
; /* List of prefixes to try */
1364 int max_len
; /* Max length of a prefix in PLIST */
1365 const char *name
; /* Name of this list (used in config stuff) */
1368 /* List of prefixes to try when looking for executables. */
1370 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1372 /* List of prefixes to try when looking for startup (crt0) files. */
1374 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1376 /* List of prefixes to try when looking for include files. */
1378 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1380 /* Suffix to attach to directories searched for commands.
1381 This looks like `MACHINE/VERSION/'. */
1383 static const char *machine_suffix
= 0;
1385 /* Suffix to attach to directories searched for commands.
1386 This is just `MACHINE/'. */
1388 static const char *just_machine_suffix
= 0;
1390 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1392 static const char *gcc_exec_prefix
;
1394 /* Default prefixes to attach to command names. */
1396 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1397 #undef MD_EXEC_PREFIX
1398 #undef MD_STARTFILE_PREFIX
1399 #undef MD_STARTFILE_PREFIX_1
1402 /* If no prefixes defined, use the null string, which will disable them. */
1403 #ifndef MD_EXEC_PREFIX
1404 #define MD_EXEC_PREFIX ""
1406 #ifndef MD_STARTFILE_PREFIX
1407 #define MD_STARTFILE_PREFIX ""
1409 #ifndef MD_STARTFILE_PREFIX_1
1410 #define MD_STARTFILE_PREFIX_1 ""
1413 /* Supply defaults for the standard prefixes. */
1415 #ifndef STANDARD_EXEC_PREFIX
1416 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1418 #ifndef STANDARD_STARTFILE_PREFIX
1419 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1421 #ifndef TOOLDIR_BASE_PREFIX
1422 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1424 #ifndef STANDARD_BINDIR_PREFIX
1425 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1428 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1429 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1430 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1432 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1433 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1434 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1435 static const char *const standard_startfile_prefix_1
= "/lib/";
1436 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1438 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1439 static const char *tooldir_prefix
;
1441 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1443 /* Subdirectory to use for locating libraries. Set by
1444 set_multilib_dir based on the compilation options. */
1446 static const char *multilib_dir
;
1448 /* Subdirectory to use for locating libraries in OS conventions. Set by
1449 set_multilib_dir based on the compilation options. */
1451 static const char *multilib_os_dir
;
1453 /* Structure to keep track of the specs that have been defined so far.
1454 These are accessed using %(specname) or %[specname] in a compiler
1459 /* The following 2 fields must be first */
1460 /* to allow EXTRA_SPECS to be initialized */
1461 const char *name
; /* name of the spec. */
1462 const char *ptr
; /* available ptr if no static pointer */
1464 /* The following fields are not initialized */
1465 /* by EXTRA_SPECS */
1466 const char **ptr_spec
; /* pointer to the spec itself. */
1467 struct spec_list
*next
; /* Next spec in linked list. */
1468 int name_len
; /* length of the name */
1469 int alloc_p
; /* whether string was allocated */
1472 #define INIT_STATIC_SPEC(NAME,PTR) \
1473 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1475 /* List of statically defined specs. */
1476 static struct spec_list static_specs
[] =
1478 INIT_STATIC_SPEC ("asm", &asm_spec
),
1479 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1480 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1481 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1482 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1483 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1484 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1485 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1486 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1487 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1488 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1489 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1490 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1491 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1492 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1493 INIT_STATIC_SPEC ("link", &link_spec
),
1494 INIT_STATIC_SPEC ("lib", &lib_spec
),
1495 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1496 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1497 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1498 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1499 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1500 INIT_STATIC_SPEC ("version", &compiler_version
),
1501 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1502 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1503 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1504 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1505 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1506 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1507 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1508 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1509 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1510 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1511 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1512 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1515 #ifdef EXTRA_SPECS /* additional specs needed */
1516 /* Structure to keep track of just the first two args of a spec_list.
1517 That is all that the EXTRA_SPECS macro gives us. */
1520 const char *const name
;
1521 const char *const ptr
;
1524 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1525 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1528 /* List of dynamically allocates specs that have been defined so far. */
1530 static struct spec_list
*specs
= (struct spec_list
*) 0;
1532 /* List of static spec functions. */
1534 static const struct spec_function static_spec_functions
[] =
1536 { "if-exists", if_exists_spec_function
},
1537 { "if-exists-else", if_exists_else_spec_function
},
1541 static int processing_spec_function
;
1543 /* Add appropriate libgcc specs to OBSTACK, taking into account
1544 various permutations of -shared-libgcc, -shared, and such. */
1546 #ifdef ENABLE_SHARED_LIBGCC
1548 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1549 struct obstack
*obstack
;
1550 const char *shared_name
;
1551 const char *static_name
;
1552 const char *eh_name
;
1556 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1557 "}%{!static:%{!static-libgcc:",
1558 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1559 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1560 static_name
, "}}%{shared:",
1562 "%{shared-libgcc:", shared_name
,
1563 "}%{!shared-libgcc:", static_name
, "}",
1569 obstack_grow (obstack
, buf
, strlen (buf
));
1572 #endif /* ENABLE_SHARED_LIBGCC */
1574 /* Initialize the specs lookup routines. */
1579 struct spec_list
*next
= (struct spec_list
*) 0;
1580 struct spec_list
*sl
= (struct spec_list
*) 0;
1584 return; /* Already initialized. */
1587 notice ("Using built-in specs.\n");
1590 extra_specs
= (struct spec_list
*)
1591 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1593 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1595 sl
= &extra_specs
[i
];
1596 sl
->name
= extra_specs_1
[i
].name
;
1597 sl
->ptr
= extra_specs_1
[i
].ptr
;
1599 sl
->name_len
= strlen (sl
->name
);
1600 sl
->ptr_spec
= &sl
->ptr
;
1605 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1606 on ?: in file-scope variable initializations. */
1607 asm_debug
= ASM_DEBUG_SPEC
;
1609 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1611 sl
= &static_specs
[i
];
1616 #ifdef ENABLE_SHARED_LIBGCC
1617 /* ??? If neither -shared-libgcc nor --static-libgcc was
1618 seen, then we should be making an educated guess. Some proposed
1619 heuristics for ELF include:
1621 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1622 program will be doing dynamic loading, which will likely
1623 need the shared libgcc.
1625 (2) If "-ldl", then it's also a fair bet that we're doing
1628 (3) For each ET_DYN we're linking against (either through -lfoo
1629 or /some/path/foo.so), check to see whether it or one of
1630 its dependencies depends on a shared libgcc.
1634 If the runtime is fixed to look for program headers instead
1635 of calling __register_frame_info at all, for each object,
1636 use the shared libgcc if any EH symbol referenced.
1638 If crtstuff is fixed to not invoke __register_frame_info
1639 automatically, for each object, use the shared libgcc if
1640 any non-empty unwind section found.
1642 Doing any of this probably requires invoking an external program to
1643 do the actual object file scanning. */
1645 const char *p
= libgcc_spec
;
1648 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1649 when given the proper command line arguments. */
1652 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1654 init_gcc_specs (&obstack
,
1655 #ifdef NO_SHARED_LIBGCC_MULTILIB
1660 #ifdef USE_LIBUNWIND_EXCEPTIONS
1669 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1671 /* Ug. We don't know shared library extensions. Hope that
1672 systems that use this form don't do shared libraries. */
1673 init_gcc_specs (&obstack
,
1674 #ifdef NO_SHARED_LIBGCC_MULTILIB
1687 obstack_1grow (&obstack
, *p
);
1688 in_sep
= (*p
== ' ');
1693 obstack_1grow (&obstack
, '\0');
1694 libgcc_spec
= obstack_finish (&obstack
);
1697 #ifdef USE_AS_TRADITIONAL_FORMAT
1698 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1700 static const char tf
[] = "--traditional-format ";
1701 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1702 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1703 asm_spec
= obstack_finish (&obstack
);
1707 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1708 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1709 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1710 link_spec
= obstack_finish (&obstack
);
1716 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1717 removed; If the spec starts with a + then SPEC is added to the end of the
1721 set_spec (name
, spec
)
1725 struct spec_list
*sl
;
1726 const char *old_spec
;
1727 int name_len
= strlen (name
);
1730 /* If this is the first call, initialize the statically allocated specs. */
1733 struct spec_list
*next
= (struct spec_list
*) 0;
1734 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1736 sl
= &static_specs
[i
];
1743 /* See if the spec already exists. */
1744 for (sl
= specs
; sl
; sl
= sl
->next
)
1745 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1750 /* Not found - make it. */
1751 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1752 sl
->name
= xstrdup (name
);
1753 sl
->name_len
= name_len
;
1754 sl
->ptr_spec
= &sl
->ptr
;
1756 *(sl
->ptr_spec
) = "";
1761 old_spec
= *(sl
->ptr_spec
);
1762 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1763 ? concat (old_spec
, spec
+ 1, NULL
)
1768 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1771 /* Free the old spec. */
1772 if (old_spec
&& sl
->alloc_p
)
1773 free ((PTR
) old_spec
);
1778 /* Accumulate a command (program name and args), and run it. */
1780 /* Vector of pointers to arguments in the current line of specifications. */
1782 static const char **argbuf
;
1784 /* Number of elements allocated in argbuf. */
1786 static int argbuf_length
;
1788 /* Number of elements in argbuf currently in use (containing args). */
1790 static int argbuf_index
;
1792 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1793 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1796 static struct temp_name
{
1797 const char *suffix
; /* suffix associated with the code. */
1798 int length
; /* strlen (suffix). */
1799 int unique
; /* Indicates whether %g or %u/%U was used. */
1800 const char *filename
; /* associated filename. */
1801 int filename_length
; /* strlen (filename). */
1802 struct temp_name
*next
;
1805 /* Number of commands executed so far. */
1807 static int execution_count
;
1809 /* Number of commands that exited with a signal. */
1811 static int signal_count
;
1813 /* Name with which this program was invoked. */
1815 static const char *programname
;
1817 /* Allocate the argument vector. */
1823 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
1826 /* Clear out the vector of arguments (after a command is executed). */
1834 /* Add one argument to the vector at the end.
1835 This is done when a space is seen or at the end of the line.
1836 If DELETE_ALWAYS is nonzero, the arg is a filename
1837 and the file should be deleted eventually.
1838 If DELETE_FAILURE is nonzero, the arg is a filename
1839 and the file should be deleted if this compilation fails. */
1842 store_arg (arg
, delete_always
, delete_failure
)
1844 int delete_always
, delete_failure
;
1846 if (argbuf_index
+ 1 == argbuf_length
)
1848 = (const char **) xrealloc (argbuf
,
1849 (argbuf_length
*= 2) * sizeof (const char *));
1851 argbuf
[argbuf_index
++] = arg
;
1852 argbuf
[argbuf_index
] = 0;
1854 if (delete_always
|| delete_failure
)
1855 record_temp_file (arg
, delete_always
, delete_failure
);
1858 /* Load specs from a file name named FILENAME, replacing occurrences of
1859 various different types of line-endings, \r\n, \n\r and just \r, with
1863 load_specs (filename
)
1864 const char *filename
;
1868 struct stat statbuf
;
1875 notice ("Reading specs from %s\n", filename
);
1877 /* Open and stat the file. */
1878 desc
= open (filename
, O_RDONLY
, 0);
1880 pfatal_with_name (filename
);
1881 if (stat (filename
, &statbuf
) < 0)
1882 pfatal_with_name (filename
);
1884 /* Read contents of file into BUFFER. */
1885 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1886 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1888 pfatal_with_name (filename
);
1889 buffer
[readlen
] = 0;
1892 specs
= xmalloc (readlen
+ 1);
1894 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1900 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1902 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1916 /* Read compilation specs from a file named FILENAME,
1917 replacing the default ones.
1919 A suffix which starts with `*' is a definition for
1920 one of the machine-specific sub-specs. The "suffix" should be
1921 *asm, *cc1, *cpp, *link, *startfile, etc.
1922 The corresponding spec is stored in asm_spec, etc.,
1923 rather than in the `compilers' vector.
1925 Anything invalid in the file is a fatal error. */
1928 read_specs (filename
, main_p
)
1929 const char *filename
;
1935 buffer
= load_specs (filename
);
1937 /* Scan BUFFER for specs, putting them in the vector. */
1943 char *in
, *out
, *p1
, *p2
, *p3
;
1945 /* Advance P in BUFFER to the next nonblank nocomment line. */
1946 p
= skip_whitespace (p
);
1950 /* Is this a special command that starts with '%'? */
1951 /* Don't allow this for the main specs file, since it would
1952 encourage people to overwrite it. */
1953 if (*p
== '%' && !main_p
)
1956 while (*p
&& *p
!= '\n')
1962 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1963 && (p1
[sizeof "%include" - 1] == ' '
1964 || p1
[sizeof "%include" - 1] == '\t'))
1968 p1
+= sizeof ("%include");
1969 while (*p1
== ' ' || *p1
== '\t')
1972 if (*p1
++ != '<' || p
[-2] != '>')
1973 fatal ("specs %%include syntax malformed after %ld characters",
1974 (long) (p1
- buffer
+ 1));
1977 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1978 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1981 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1982 && (p1
[sizeof "%include_noerr" - 1] == ' '
1983 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1987 p1
+= sizeof "%include_noerr";
1988 while (*p1
== ' ' || *p1
== '\t')
1991 if (*p1
++ != '<' || p
[-2] != '>')
1992 fatal ("specs %%include syntax malformed after %ld characters",
1993 (long) (p1
- buffer
+ 1));
1996 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1998 read_specs (new_filename
, FALSE
);
1999 else if (verbose_flag
)
2000 notice ("could not find specs file %s\n", p1
);
2003 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2004 && (p1
[sizeof "%rename" - 1] == ' '
2005 || p1
[sizeof "%rename" - 1] == '\t'))
2008 struct spec_list
*sl
;
2009 struct spec_list
*newsl
;
2011 /* Get original name. */
2012 p1
+= sizeof "%rename";
2013 while (*p1
== ' ' || *p1
== '\t')
2016 if (! ISALPHA ((unsigned char) *p1
))
2017 fatal ("specs %%rename syntax malformed after %ld characters",
2018 (long) (p1
- buffer
));
2021 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2024 if (*p2
!= ' ' && *p2
!= '\t')
2025 fatal ("specs %%rename syntax malformed after %ld characters",
2026 (long) (p2
- buffer
));
2030 while (*p2
== ' ' || *p2
== '\t')
2033 if (! ISALPHA ((unsigned char) *p2
))
2034 fatal ("specs %%rename syntax malformed after %ld characters",
2035 (long) (p2
- buffer
));
2037 /* Get new spec name. */
2039 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2043 fatal ("specs %%rename syntax malformed after %ld characters",
2044 (long) (p3
- buffer
));
2047 for (sl
= specs
; sl
; sl
= sl
->next
)
2048 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2052 fatal ("specs %s spec was not found to be renamed", p1
);
2054 if (strcmp (p1
, p2
) == 0)
2057 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2058 if (strcmp (newsl
->name
, p2
) == 0)
2059 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2064 notice ("rename spec %s to %s\n", p1
, p2
);
2066 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2070 set_spec (p2
, *(sl
->ptr_spec
));
2072 free ((PTR
) *(sl
->ptr_spec
));
2074 *(sl
->ptr_spec
) = "";
2079 fatal ("specs unknown %% command after %ld characters",
2080 (long) (p1
- buffer
));
2083 /* Find the colon that should end the suffix. */
2085 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2088 /* The colon shouldn't be missing. */
2090 fatal ("specs file malformed after %ld characters",
2091 (long) (p1
- buffer
));
2093 /* Skip back over trailing whitespace. */
2095 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2098 /* Copy the suffix to a string. */
2099 suffix
= save_string (p
, p2
- p
);
2100 /* Find the next line. */
2101 p
= skip_whitespace (p1
+ 1);
2103 fatal ("specs file malformed after %ld characters",
2104 (long) (p
- buffer
));
2107 /* Find next blank line or end of string. */
2108 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2111 /* Specs end at the blank line and do not include the newline. */
2112 spec
= save_string (p
, p1
- p
);
2115 /* Delete backslash-newline sequences from the spec. */
2120 if (in
[0] == '\\' && in
[1] == '\n')
2122 else if (in
[0] == '#')
2123 while (*in
&& *in
!= '\n')
2131 if (suffix
[0] == '*')
2133 if (! strcmp (suffix
, "*link_command"))
2134 link_command_spec
= spec
;
2136 set_spec (suffix
+ 1, spec
);
2140 /* Add this pair to the vector. */
2142 = ((struct compiler
*)
2143 xrealloc (compilers
,
2144 (n_compilers
+ 2) * sizeof (struct compiler
)));
2146 compilers
[n_compilers
].suffix
= suffix
;
2147 compilers
[n_compilers
].spec
= spec
;
2149 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2153 link_command_spec
= spec
;
2156 if (link_command_spec
== 0)
2157 fatal ("spec file has no spec for linking");
2160 /* Record the names of temporary files we tell compilers to write,
2161 and delete them at the end of the run. */
2163 /* This is the common prefix we use to make temp file names.
2164 It is chosen once for each run of this program.
2165 It is substituted into a spec by %g or %j.
2166 Thus, all temp file names contain this prefix.
2167 In practice, all temp file names start with this prefix.
2169 This prefix comes from the envvar TMPDIR if it is defined;
2170 otherwise, from the P_tmpdir macro if that is defined;
2171 otherwise, in /usr/tmp or /tmp;
2172 or finally the current directory if all else fails. */
2174 static const char *temp_filename
;
2176 /* Length of the prefix. */
2178 static int temp_filename_length
;
2180 /* Define the list of temporary files to delete. */
2185 struct temp_file
*next
;
2188 /* Queue of files to delete on success or failure of compilation. */
2189 static struct temp_file
*always_delete_queue
;
2190 /* Queue of files to delete on failure of compilation. */
2191 static struct temp_file
*failure_delete_queue
;
2193 /* Record FILENAME as a file to be deleted automatically.
2194 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2195 otherwise delete it in any case.
2196 FAIL_DELETE nonzero means delete it if a compilation step fails;
2197 otherwise delete it in any case. */
2200 record_temp_file (filename
, always_delete
, fail_delete
)
2201 const char *filename
;
2205 char *const name
= xstrdup (filename
);
2209 struct temp_file
*temp
;
2210 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2211 if (! strcmp (name
, temp
->name
))
2214 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2215 temp
->next
= always_delete_queue
;
2217 always_delete_queue
= temp
;
2224 struct temp_file
*temp
;
2225 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2226 if (! strcmp (name
, temp
->name
))
2229 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2230 temp
->next
= failure_delete_queue
;
2232 failure_delete_queue
= temp
;
2238 /* Delete all the temporary files whose names we previously recorded. */
2241 delete_if_ordinary (name
)
2248 printf ("Delete %s? (y or n) ", name
);
2252 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2255 if (i
== 'y' || i
== 'Y')
2257 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2258 if (unlink (name
) < 0)
2260 perror_with_name (name
);
2264 delete_temp_files ()
2266 struct temp_file
*temp
;
2268 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2269 delete_if_ordinary (temp
->name
);
2270 always_delete_queue
= 0;
2273 /* Delete all the files to be deleted on error. */
2276 delete_failure_queue ()
2278 struct temp_file
*temp
;
2280 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2281 delete_if_ordinary (temp
->name
);
2285 clear_failure_queue ()
2287 failure_delete_queue
= 0;
2290 /* Build a list of search directories from PATHS.
2291 PREFIX is a string to prepend to the list.
2292 If CHECK_DIR_P is nonzero we ensure the directory exists.
2293 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2294 It is also used by the --print-search-dirs flag. */
2297 build_search_list (paths
, prefix
, check_dir_p
)
2298 struct path_prefix
*paths
;
2302 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2304 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2305 int first_time
= TRUE
;
2306 struct prefix_list
*pprefix
;
2308 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2309 obstack_1grow (&collect_obstack
, '=');
2311 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2313 int len
= strlen (pprefix
->prefix
);
2317 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2320 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2323 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2324 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2327 if (just_machine_suffix
2328 && pprefix
->require_machine_suffix
== 2
2330 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2333 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2336 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2337 obstack_grow (&collect_obstack
, just_machine_suffix
,
2341 if (! pprefix
->require_machine_suffix
)
2344 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2347 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2351 obstack_1grow (&collect_obstack
, '\0');
2352 return obstack_finish (&collect_obstack
);
2355 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2359 putenv_from_prefixes (paths
, env_var
)
2360 struct path_prefix
*paths
;
2361 const char *env_var
;
2363 putenv (build_search_list (paths
, env_var
, 1));
2366 /* Check whether NAME can be accessed in MODE. This is like access,
2367 except that it never considers directories to be executable. */
2370 access_check (name
, mode
)
2378 if (stat (name
, &st
) < 0
2379 || S_ISDIR (st
.st_mode
))
2383 return access (name
, mode
);
2386 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2387 access to check permissions.
2388 Return 0 if not found, otherwise return its name, allocated with malloc. */
2391 find_a_file (pprefix
, name
, mode
, multilib
)
2392 struct path_prefix
*pprefix
;
2397 const char *const file_suffix
=
2398 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2399 struct prefix_list
*pl
;
2400 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2401 const char *multilib_name
, *multilib_os_name
;
2403 #ifdef DEFAULT_ASSEMBLER
2404 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2405 return xstrdup (DEFAULT_ASSEMBLER
);
2408 #ifdef DEFAULT_LINKER
2409 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2410 return xstrdup (DEFAULT_LINKER
);
2414 len
+= strlen (machine_suffix
);
2416 multilib_name
= name
;
2417 multilib_os_name
= name
;
2418 if (multilib
&& multilib_os_dir
)
2420 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2421 int len2
= strlen (multilib_os_dir
) + 1;
2423 len
+= len1
> len2
? len1
: len2
;
2425 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2427 if (strcmp (multilib_os_dir
, ".") != 0)
2428 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2432 temp
= xmalloc (len
);
2434 /* Determine the filename to execute (special case for absolute paths). */
2436 if (IS_ABSOLUTE_PATHNAME (name
))
2438 if (access (name
, mode
) == 0)
2440 strcpy (temp
, name
);
2445 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2447 const char *this_name
2448 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2452 /* Some systems have a suffix for executable files.
2453 So try appending that first. */
2454 if (file_suffix
[0] != 0)
2456 strcpy (temp
, pl
->prefix
);
2457 strcat (temp
, machine_suffix
);
2458 strcat (temp
, multilib_name
);
2459 strcat (temp
, file_suffix
);
2460 if (access_check (temp
, mode
) == 0)
2462 if (pl
->used_flag_ptr
!= 0)
2463 *pl
->used_flag_ptr
= 1;
2468 /* Now try just the multilib_name. */
2469 strcpy (temp
, pl
->prefix
);
2470 strcat (temp
, machine_suffix
);
2471 strcat (temp
, multilib_name
);
2472 if (access_check (temp
, mode
) == 0)
2474 if (pl
->used_flag_ptr
!= 0)
2475 *pl
->used_flag_ptr
= 1;
2480 /* Certain prefixes are tried with just the machine type,
2481 not the version. This is used for finding as, ld, etc. */
2482 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2484 /* Some systems have a suffix for executable files.
2485 So try appending that first. */
2486 if (file_suffix
[0] != 0)
2488 strcpy (temp
, pl
->prefix
);
2489 strcat (temp
, just_machine_suffix
);
2490 strcat (temp
, multilib_name
);
2491 strcat (temp
, file_suffix
);
2492 if (access_check (temp
, mode
) == 0)
2494 if (pl
->used_flag_ptr
!= 0)
2495 *pl
->used_flag_ptr
= 1;
2500 strcpy (temp
, pl
->prefix
);
2501 strcat (temp
, just_machine_suffix
);
2502 strcat (temp
, multilib_name
);
2503 if (access_check (temp
, mode
) == 0)
2505 if (pl
->used_flag_ptr
!= 0)
2506 *pl
->used_flag_ptr
= 1;
2511 /* Certain prefixes can't be used without the machine suffix
2512 when the machine or version is explicitly specified. */
2513 if (! pl
->require_machine_suffix
)
2515 /* Some systems have a suffix for executable files.
2516 So try appending that first. */
2517 if (file_suffix
[0] != 0)
2519 strcpy (temp
, pl
->prefix
);
2520 strcat (temp
, this_name
);
2521 strcat (temp
, file_suffix
);
2522 if (access_check (temp
, mode
) == 0)
2524 if (pl
->used_flag_ptr
!= 0)
2525 *pl
->used_flag_ptr
= 1;
2530 strcpy (temp
, pl
->prefix
);
2531 strcat (temp
, this_name
);
2532 if (access_check (temp
, mode
) == 0)
2534 if (pl
->used_flag_ptr
!= 0)
2535 *pl
->used_flag_ptr
= 1;
2545 /* Ranking of prefixes in the sort list. -B prefixes are put before
2548 enum path_prefix_priority
2550 PREFIX_PRIORITY_B_OPT
,
2551 PREFIX_PRIORITY_LAST
2554 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2555 order according to PRIORITY. Within each PRIORITY, new entries are
2558 If WARN is nonzero, we will warn if no file is found
2559 through this prefix. WARN should point to an int
2560 which will be set to 1 if this entry is used.
2562 COMPONENT is the value to be passed to update_path.
2564 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2565 the complete value of machine_suffix.
2566 2 means try both machine_suffix and just_machine_suffix. */
2569 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
,
2571 struct path_prefix
*pprefix
;
2573 const char *component
;
2574 /* enum prefix_priority */ int priority
;
2575 int require_machine_suffix
;
2579 struct prefix_list
*pl
, **prev
;
2582 for (prev
= &pprefix
->plist
;
2583 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2584 prev
= &(*prev
)->next
)
2587 /* Keep track of the longest prefix */
2589 prefix
= update_path (prefix
, component
);
2590 len
= strlen (prefix
);
2591 if (len
> pprefix
->max_len
)
2592 pprefix
->max_len
= len
;
2594 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2595 pl
->prefix
= prefix
;
2596 pl
->require_machine_suffix
= require_machine_suffix
;
2597 pl
->used_flag_ptr
= warn
;
2598 pl
->priority
= priority
;
2599 pl
->os_multilib
= os_multilib
;
2603 /* Insert after PREV */
2608 /* Same as add_prefix, but prepending target_system_root to prefix. */
2610 add_sysrooted_prefix (pprefix
, prefix
, component
, priority
,
2611 require_machine_suffix
, warn
, os_multilib
)
2612 struct path_prefix
*pprefix
;
2614 const char *component
;
2615 /* enum prefix_priority */ int priority
;
2616 int require_machine_suffix
;
2620 if (!IS_ABSOLUTE_PATHNAME (prefix
))
2623 if (target_system_root
)
2625 prefix
= concat (target_system_root
, prefix
, NULL
);
2626 /* We have to override this because GCC's notion of sysroot
2627 moves along with GCC. */
2631 add_prefix (pprefix
, prefix
, component
, priority
,
2632 require_machine_suffix
, warn
, os_multilib
);
2635 /* Execute the command specified by the arguments on the current line of spec.
2636 When using pipes, this includes several piped-together commands
2637 with `|' between them.
2639 Return 0 if successful, -1 if failed. */
2645 int n_commands
; /* # of command. */
2649 const char *prog
; /* program name. */
2650 const char **argv
; /* vector of args. */
2651 int pid
; /* pid of process for this command. */
2654 struct command
*commands
; /* each command buffer with above info. */
2656 if (processing_spec_function
)
2659 /* Count # of piped commands. */
2660 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2661 if (strcmp (argbuf
[i
], "|") == 0)
2664 /* Get storage for each command. */
2665 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2667 /* Split argbuf into its separate piped processes,
2668 and record info about each one.
2669 Also search for the programs that are to be run. */
2671 commands
[0].prog
= argbuf
[0]; /* first command. */
2672 commands
[0].argv
= &argbuf
[0];
2673 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2676 commands
[0].argv
[0] = string
;
2678 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2679 if (strcmp (argbuf
[i
], "|") == 0)
2680 { /* each command. */
2681 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2682 fatal ("-pipe not supported");
2684 argbuf
[i
] = 0; /* termination of command args. */
2685 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2686 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2687 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2690 commands
[n_commands
].argv
[0] = string
;
2694 argbuf
[argbuf_index
] = 0;
2696 /* If -v, print what we are about to do, and maybe query. */
2700 /* For help listings, put a blank line between sub-processes. */
2701 if (print_help_list
)
2702 fputc ('\n', stderr
);
2704 /* Print each piped command as a separate line. */
2705 for (i
= 0; i
< n_commands
; i
++)
2707 const char *const *j
;
2709 if (verbose_only_flag
)
2711 for (j
= commands
[i
].argv
; *j
; j
++)
2714 fprintf (stderr
, " \"");
2715 for (p
= *j
; *p
; ++p
)
2717 if (*p
== '"' || *p
== '\\' || *p
== '$')
2718 fputc ('\\', stderr
);
2721 fputc ('"', stderr
);
2725 for (j
= commands
[i
].argv
; *j
; j
++)
2726 fprintf (stderr
, " %s", *j
);
2728 /* Print a pipe symbol after all but the last command. */
2729 if (i
+ 1 != n_commands
)
2730 fprintf (stderr
, " |");
2731 fprintf (stderr
, "\n");
2734 if (verbose_only_flag
!= 0)
2737 notice ("\nGo ahead? (y or n) ");
2741 while (getchar () != '\n')
2744 if (i
!= 'y' && i
!= 'Y')
2749 #ifdef ENABLE_VALGRIND_CHECKING
2750 /* Run the each command through valgrind. To simplify prepending the
2751 path to valgrind and the option "-q" (for quiet operation unless
2752 something triggers), we allocate a separate argv array. */
2754 for (i
= 0; i
< n_commands
; i
++)
2760 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2763 argv
= alloca ((argc
+ 3) * sizeof (char *));
2765 argv
[0] = VALGRIND_PATH
;
2767 for (j
= 2; j
< argc
+ 2; j
++)
2768 argv
[j
] = commands
[i
].argv
[j
- 2];
2771 commands
[i
].argv
= argv
;
2772 commands
[i
].prog
= argv
[0];
2776 /* Run each piped subprocess. */
2778 for (i
= 0; i
< n_commands
; i
++)
2780 char *errmsg_fmt
, *errmsg_arg
;
2781 const char *string
= commands
[i
].argv
[0];
2783 /* For some bizarre reason, the second argument of execvp() is
2784 char *const *, not const char *const *. */
2785 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2786 programname
, temp_filename
,
2787 &errmsg_fmt
, &errmsg_arg
,
2788 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2789 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2790 | (string
== commands
[i
].prog
2791 ? PEXECUTE_SEARCH
: 0)
2792 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2794 if (commands
[i
].pid
== -1)
2795 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2797 if (string
!= commands
[i
].prog
)
2798 free ((PTR
) string
);
2803 /* Wait for all the subprocesses to finish.
2804 We don't care what order they finish in;
2805 we know that N_COMMANDS waits will get them all.
2806 Ignore subprocesses that we don't know about,
2807 since they can be spawned by the process that exec'ed us. */
2811 #ifdef HAVE_GETRUSAGE
2813 double ut
= 0.0, st
= 0.0;
2816 for (i
= 0; i
< n_commands
;)
2822 pid
= pwait (commands
[i
].pid
, &status
, 0);
2826 #ifdef HAVE_GETRUSAGE
2829 /* getrusage returns the total resource usage of all children
2830 up to now. Copy the previous values into prus, get the
2831 current statistics, then take the difference. */
2834 getrusage (RUSAGE_CHILDREN
, &rus
);
2835 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2836 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2837 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2839 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2840 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2841 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2845 for (j
= 0; j
< n_commands
; j
++)
2846 if (commands
[j
].pid
== pid
)
2849 if (WIFSIGNALED (status
))
2852 /* SIGPIPE is a special case. It happens in -pipe mode
2853 when the compiler dies before the preprocessor is
2854 done, or the assembler dies before the compiler is
2855 done. There's generally been an error already, and
2856 this is just fallout. So don't generate another error
2857 unless we would otherwise have succeeded. */
2858 if (WTERMSIG (status
) == SIGPIPE
2859 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2864 Internal error: %s (program %s)\n\
2865 Please submit a full bug report.\n\
2866 See %s for instructions.",
2867 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2872 else if (WIFEXITED (status
)
2873 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2875 if (WEXITSTATUS (status
) > greatest_status
)
2876 greatest_status
= WEXITSTATUS (status
);
2879 #ifdef HAVE_GETRUSAGE
2880 if (report_times
&& ut
+ st
!= 0)
2881 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2890 /* Find all the switches given to us
2891 and make a vector describing them.
2892 The elements of the vector are strings, one per switch given.
2893 If a switch uses following arguments, then the `part1' field
2894 is the switch itself and the `args' field
2895 is a null-terminated vector containing the following arguments.
2896 The `live_cond' field is:
2898 1 if the switch is true in a conditional spec,
2899 -1 if false (overridden by a later switch)
2900 -2 if this switch should be ignored (used in %<S)
2901 The `validated' field is nonzero if any spec has looked at this switch;
2902 if it remains zero at the end of the run, it must be meaningless. */
2905 #define SWITCH_FALSE -1
2906 #define SWITCH_IGNORE -2
2907 #define SWITCH_LIVE 1
2914 unsigned char validated
;
2915 unsigned char ordering
;
2918 static struct switchstr
*switches
;
2920 static int n_switches
;
2925 const char *language
;
2928 /* Also a vector of input files specified. */
2930 static struct infile
*infiles
;
2934 /* This counts the number of libraries added by lang_specific_driver, so that
2935 we can tell if there were any user supplied any files or libraries. */
2937 static int added_libraries
;
2939 /* And a vector of corresponding output files is made up later. */
2941 const char **outfiles
;
2943 /* Used to track if none of the -B paths are used. */
2946 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2947 static int *warn_std_ptr
= 0;
2949 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2951 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2952 is true if we should look for an executable suffix. DO_OBJ
2953 is true if we should look for an object suffix. */
2956 convert_filename (name
, do_exe
, do_obj
)
2958 int do_exe ATTRIBUTE_UNUSED
;
2959 int do_obj ATTRIBUTE_UNUSED
;
2961 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2969 len
= strlen (name
);
2971 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2972 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2973 if (do_obj
&& len
> 2
2974 && name
[len
- 2] == '.'
2975 && name
[len
- 1] == 'o')
2977 obstack_grow (&obstack
, name
, len
- 2);
2978 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2979 name
= obstack_finish (&obstack
);
2983 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2984 /* If there is no filetype, make it the executable suffix (which includes
2985 the "."). But don't get confused if we have just "-o". */
2986 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2989 for (i
= len
- 1; i
>= 0; i
--)
2990 if (IS_DIR_SEPARATOR (name
[i
]))
2993 for (i
++; i
< len
; i
++)
2997 obstack_grow (&obstack
, name
, len
);
2998 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2999 strlen (TARGET_EXECUTABLE_SUFFIX
));
3000 name
= obstack_finish (&obstack
);
3007 /* Display the command line switches accepted by gcc. */
3011 printf (_("Usage: %s [options] file...\n"), programname
);
3012 fputs (_("Options:\n"), stdout
);
3014 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3015 fputs (_(" --help Display this information\n"), stdout
);
3016 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3018 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3019 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3020 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3021 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3022 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3023 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3024 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3025 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3026 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3028 -print-multi-lib Display the mapping between command line options and\n\
3029 multiple library search directories\n"), stdout
);
3030 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3031 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3032 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3033 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3034 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3035 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3036 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3037 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3038 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3039 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3040 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3041 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3042 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3043 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3044 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3045 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3046 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3047 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3048 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3049 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3050 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3052 -x <language> Specify the language of the following input files\n\
3053 Permissable languages include: c c++ assembler none\n\
3054 'none' means revert to the default behavior of\n\
3055 guessing the language based on the file's extension\n\
3059 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3060 passed on to the various sub-processes invoked by %s. In order to pass\n\
3061 other options on to these processes the -W<letter> options must be used.\n\
3064 /* The rest of the options are displayed by invocations of the various
3069 add_preprocessor_option (option
, len
)
3073 n_preprocessor_options
++;
3075 if (! preprocessor_options
)
3076 preprocessor_options
3077 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3079 preprocessor_options
3080 = (char **) xrealloc (preprocessor_options
,
3081 n_preprocessor_options
* sizeof (char *));
3083 preprocessor_options
[n_preprocessor_options
- 1] =
3084 save_string (option
, len
);
3088 add_assembler_option (option
, len
)
3092 n_assembler_options
++;
3094 if (! assembler_options
)
3096 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3099 = (char **) xrealloc (assembler_options
,
3100 n_assembler_options
* sizeof (char *));
3102 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3106 add_linker_option (option
, len
)
3112 if (! linker_options
)
3114 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3117 = (char **) xrealloc (linker_options
,
3118 n_linker_options
* sizeof (char *));
3120 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3123 /* Create the vector `switches' and its contents.
3124 Store its length in `n_switches'. */
3127 process_command (argc
, argv
)
3129 const char *const *argv
;
3134 const char *spec_lang
= 0;
3135 int last_language_n_infiles
;
3138 int lang_n_infiles
= 0;
3139 #ifdef MODIFY_TARGET_NAME
3140 int is_modify_target_name
;
3144 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3148 added_libraries
= 0;
3150 /* Figure compiler version from version string. */
3152 compiler_version
= temp1
= xstrdup (version_string
);
3154 for (; *temp1
; ++temp1
)
3163 /* If there is a -V or -b option (or both), process it now, before
3164 trying to interpret the rest of the command line. */
3165 if (argc
> 1 && argv
[1][0] == '-'
3166 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3168 const char *new_version
= DEFAULT_TARGET_VERSION
;
3169 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3170 const char *progname
= argv
[0];
3175 while (argc
> 1 && argv
[1][0] == '-'
3176 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3178 char opt
= argv
[1][1];
3180 if (argv
[1][2] != '\0')
3193 fatal ("`-%c' option must have argument", opt
);
3200 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3201 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3203 new_argv0
= xmemdup (progname
, baselen
,
3204 baselen
+ concat_length (new_version
, new_machine
,
3205 "-gcc-", NULL
) + 1);
3206 strcpy (new_argv0
+ baselen
, new_machine
);
3207 strcat (new_argv0
, "-gcc-");
3208 strcat (new_argv0
, new_version
);
3210 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3211 (argc
+ 1) * sizeof (argv
[0]));
3212 new_argv
[0] = new_argv0
;
3214 execvp (new_argv0
, new_argv
);
3215 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3218 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3219 see if we can create it from the pathname specified in argv[0]. */
3222 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3223 if (!gcc_exec_prefix
)
3225 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3226 standard_exec_prefix
);
3227 if (gcc_exec_prefix
)
3228 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3232 if (gcc_exec_prefix
)
3234 int len
= strlen (gcc_exec_prefix
);
3236 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3237 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3239 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3240 if (IS_DIR_SEPARATOR (*temp
)
3241 && strncmp (temp
+ 1, "lib", 3) == 0
3242 && IS_DIR_SEPARATOR (temp
[4])
3243 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3244 len
-= sizeof ("/lib/gcc-lib/") - 1;
3247 set_std_prefix (gcc_exec_prefix
, len
);
3248 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3249 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3250 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3251 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3254 /* COMPILER_PATH and LIBRARY_PATH have values
3255 that are lists of directory names with colons. */
3257 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3260 const char *startp
, *endp
;
3261 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3263 startp
= endp
= temp
;
3266 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3268 strncpy (nstore
, startp
, endp
- startp
);
3270 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3271 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3273 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3274 nstore
[endp
- startp
+ 1] = 0;
3277 nstore
[endp
- startp
] = 0;
3278 add_prefix (&exec_prefixes
, nstore
, 0,
3279 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3280 add_prefix (&include_prefixes
,
3281 concat (nstore
, "include", NULL
),
3282 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3285 endp
= startp
= endp
+ 1;
3292 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3293 if (temp
&& *cross_compile
== '0')
3295 const char *startp
, *endp
;
3296 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3298 startp
= endp
= temp
;
3301 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3303 strncpy (nstore
, startp
, endp
- startp
);
3305 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3306 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3308 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3309 nstore
[endp
- startp
+ 1] = 0;
3312 nstore
[endp
- startp
] = 0;
3313 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3314 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3317 endp
= startp
= endp
+ 1;
3324 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3325 GET_ENVIRONMENT (temp
, "LPATH");
3326 if (temp
&& *cross_compile
== '0')
3328 const char *startp
, *endp
;
3329 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3331 startp
= endp
= temp
;
3334 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3336 strncpy (nstore
, startp
, endp
- startp
);
3338 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3339 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3341 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3342 nstore
[endp
- startp
+ 1] = 0;
3345 nstore
[endp
- startp
] = 0;
3346 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3347 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3350 endp
= startp
= endp
+ 1;
3357 /* Convert new-style -- options to old-style. */
3358 translate_options (&argc
, &argv
);
3360 /* Do language-specific adjustment/addition of flags. */
3361 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3363 /* Scan argv twice. Here, the first time, just count how many switches
3364 there will be in their vector, and how many input files in theirs.
3365 Here we also parse the switches that cc itself uses (e.g. -v). */
3367 for (i
= 1; i
< argc
; i
++)
3369 if (! strcmp (argv
[i
], "-dumpspecs"))
3371 struct spec_list
*sl
;
3373 for (sl
= specs
; sl
; sl
= sl
->next
)
3374 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3375 if (link_command_spec
)
3376 printf ("*link_command:\n%s\n\n", link_command_spec
);
3379 else if (! strcmp (argv
[i
], "-dumpversion"))
3381 printf ("%s\n", spec_version
);
3384 else if (! strcmp (argv
[i
], "-dumpmachine"))
3386 printf ("%s\n", spec_machine
);
3389 else if (strcmp (argv
[i
], "-fversion") == 0)
3391 /* translate_options () has turned --version into -fversion. */
3392 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3393 fputs (_("Copyright (C) 2002 Free Software Foundation, Inc.\n"),
3395 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3396 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3400 else if (strcmp (argv
[i
], "-fhelp") == 0)
3402 /* translate_options () has turned --help into -fhelp. */
3403 print_help_list
= 1;
3405 /* We will be passing a dummy file on to the sub-processes. */
3409 /* CPP driver cannot obtain switch from cc1_options. */
3411 add_preprocessor_option ("--help", 6);
3412 add_assembler_option ("--help", 6);
3413 add_linker_option ("--help", 6);
3415 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3417 /* translate_options() has turned --target-help into -ftarget-help. */
3418 target_help_flag
= 1;
3420 /* We will be passing a dummy file on to the sub-processes. */
3424 /* CPP driver cannot obtain switch from cc1_options. */
3426 add_preprocessor_option ("--target-help", 13);
3427 add_assembler_option ("--target-help", 13);
3428 add_linker_option ("--target-help", 13);
3430 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3432 pass_exit_codes
= 1;
3435 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3436 print_search_dirs
= 1;
3437 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3438 print_file_name
= "libgcc.a";
3439 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3440 print_file_name
= argv
[i
] + 17;
3441 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3442 print_prog_name
= argv
[i
] + 17;
3443 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3444 print_multi_lib
= 1;
3445 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3446 print_multi_directory
= 1;
3447 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3448 print_multi_os_directory
= 1;
3449 else if (! strncmp (argv
[i
], "-Wa,", 4))
3452 /* Pass the rest of this option to the assembler. */
3454 /* Split the argument at commas. */
3456 for (j
= 4; argv
[i
][j
]; j
++)
3457 if (argv
[i
][j
] == ',')
3459 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3463 /* Record the part after the last comma. */
3464 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3466 else if (! strncmp (argv
[i
], "-Wp,", 4))
3469 /* Pass the rest of this option to the preprocessor. */
3471 /* Split the argument at commas. */
3473 for (j
= 4; argv
[i
][j
]; j
++)
3474 if (argv
[i
][j
] == ',')
3476 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3480 /* Record the part after the last comma. */
3481 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3483 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3484 /* The +e options to the C++ front-end. */
3486 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3489 /* Split the argument at commas. */
3490 for (j
= 3; argv
[i
][j
]; j
++)
3491 n_infiles
+= (argv
[i
][j
] == ',');
3493 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3496 fatal ("argument to `-Xlinker' is missing");
3501 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3504 fatal ("argument to `-Xpreprocessor' is missing");
3506 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3508 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3511 fatal ("argument to `-Xassembler' is missing");
3513 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3515 else if (strcmp (argv
[i
], "-l") == 0)
3518 fatal ("argument to `-l' is missing");
3523 else if (strncmp (argv
[i
], "-l", 2) == 0)
3525 else if (strcmp (argv
[i
], "-save-temps") == 0)
3527 save_temps_flag
= 1;
3530 else if (strcmp (argv
[i
], "-specs") == 0)
3532 struct user_specs
*user
= (struct user_specs
*)
3533 xmalloc (sizeof (struct user_specs
));
3535 fatal ("argument to `-specs' is missing");
3537 user
->next
= (struct user_specs
*) 0;
3538 user
->filename
= argv
[i
];
3539 if (user_specs_tail
)
3540 user_specs_tail
->next
= user
;
3542 user_specs_head
= user
;
3543 user_specs_tail
= user
;
3545 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3547 struct user_specs
*user
= (struct user_specs
*)
3548 xmalloc (sizeof (struct user_specs
));
3549 if (strlen (argv
[i
]) == 7)
3550 fatal ("argument to `-specs=' is missing");
3552 user
->next
= (struct user_specs
*) 0;
3553 user
->filename
= argv
[i
] + 7;
3554 if (user_specs_tail
)
3555 user_specs_tail
->next
= user
;
3557 user_specs_head
= user
;
3558 user_specs_tail
= user
;
3560 else if (strcmp (argv
[i
], "-time") == 0)
3562 else if (strcmp (argv
[i
], "-pipe") == 0)
3564 /* -pipe has to go into the switches array as well as
3569 else if (strcmp (argv
[i
], "-###") == 0)
3571 /* This is similar to -v except that there is no execution
3572 of the commands and the echoed arguments are quoted. It
3573 is intended for use in shell scripts to capture the
3574 driver-generated command line. */
3575 verbose_only_flag
++;
3578 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3580 const char *p
= &argv
[i
][1];
3587 fatal ("`-%c' must come at the start of the command line", c
);
3595 if (p
[1] == 0 && i
+ 1 == argc
)
3596 fatal ("argument to `-B' is missing");
3602 len
= strlen (value
);
3604 /* Catch the case where the user has forgotten to append a
3605 directory separator to the path. Note, they may be using
3606 -B to add an executable name prefix, eg "i386-elf-", in
3607 order to distinguish between multiple installations of
3608 GCC in the same directory. Hence we must check to see
3609 if appending a directory separator actually makes a
3610 valid directory name. */
3611 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3612 && is_directory (value
, "", 0))
3614 char *tmp
= xmalloc (len
+ 2);
3615 strcpy (tmp
, value
);
3616 tmp
[len
] = DIR_SEPARATOR
;
3621 /* As a kludge, if the arg is "[foo/]stageN/", just
3622 add "[foo/]include" to the include prefix. */
3625 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3626 && strncmp (value
+ len
- 7, "stage", 5) == 0
3627 && ISDIGIT (value
[len
- 2])
3628 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3631 add_prefix (&include_prefixes
, "include", NULL
,
3632 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3635 char * string
= xmalloc (len
+ 1);
3637 strncpy (string
, value
, len
- 7);
3638 strcpy (string
+ len
- 7, "include");
3639 add_prefix (&include_prefixes
, string
, NULL
,
3640 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3644 add_prefix (&exec_prefixes
, value
, NULL
,
3645 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3646 add_prefix (&startfile_prefixes
, value
, NULL
,
3647 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3648 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3649 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3654 case 'v': /* Print our subcommands and print versions. */
3656 /* If they do anything other than exactly `-v', don't set
3657 verbose_flag; rather, continue on to give the error. */
3675 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3680 /* Forward scan, just in case -S or -c is specified
3687 if (argv
[j
][0] == '-')
3689 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3695 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3696 j
+= skip
- (argv
[j
][2] != 0);
3697 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3704 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3706 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3708 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3715 #ifdef MODIFY_TARGET_NAME
3716 is_modify_target_name
= 0;
3718 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3719 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3722 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3723 + strlen (spec_machine
));
3726 int made_addition
= 0;
3728 is_modify_target_name
= 1;
3729 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3731 if (modify_target
[j
].add_del
== DELETE
3732 && (! strncmp (q
, modify_target
[j
].str
,
3733 strlen (modify_target
[j
].str
))))
3734 p
+= strlen (modify_target
[j
].str
);
3735 else if (modify_target
[j
].add_del
== ADD
3736 && ! made_addition
&& *p
== '-')
3738 for (r
= modify_target
[j
].str
; *r
!= 0; )
3746 spec_machine
= new_name
;
3749 if (is_modify_target_name
)
3755 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3756 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3757 else if (WORD_SWITCH_TAKES_ARG (p
))
3758 i
+= WORD_SWITCH_TAKES_ARG (p
);
3768 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3769 fatal ("cannot specify -o with -c or -S and multiple compilations");
3771 if ((save_temps_flag
|| report_times
) && use_pipes
)
3773 /* -save-temps overrides -pipe, so that temp files are produced */
3774 if (save_temps_flag
)
3775 error ("warning: -pipe ignored because -save-temps specified");
3776 /* -time overrides -pipe because we can't get correct stats when
3777 multiple children are running at once. */
3778 else if (report_times
)
3779 error ("warning: -pipe ignored because -time specified");
3784 /* Set up the search paths before we go looking for config files. */
3786 /* These come before the md prefixes so that we will find gcc's subcommands
3787 (such as cpp) rather than those of the host system. */
3788 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3789 as well as trying the machine and the version. */
3791 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3792 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3793 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3794 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3795 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3796 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3799 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3800 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3801 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3802 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3804 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3805 dir_separator_str
, NULL
);
3807 /* If tooldir is relative, base it on exec_prefixes. A relative
3808 tooldir lets us move the installed tree as a unit.
3810 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3811 directories, so that we can search both the user specified directory
3812 and the standard place. */
3814 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3816 if (gcc_exec_prefix
)
3818 char *gcc_exec_tooldir_prefix
3819 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3820 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3822 add_prefix (&exec_prefixes
,
3823 concat (gcc_exec_tooldir_prefix
, "bin",
3824 dir_separator_str
, NULL
),
3825 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3826 add_prefix (&startfile_prefixes
,
3827 concat (gcc_exec_tooldir_prefix
, "lib",
3828 dir_separator_str
, NULL
),
3829 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3832 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3833 dir_separator_str
, spec_version
,
3834 dir_separator_str
, tooldir_prefix
, NULL
);
3837 add_prefix (&exec_prefixes
,
3838 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3839 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3840 add_prefix (&startfile_prefixes
,
3841 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3842 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3844 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3845 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3846 then consider it to relocate with the rest of the GCC installation
3847 if GCC_EXEC_PREFIX is set.
3848 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3849 if (target_system_root
&& gcc_exec_prefix
)
3851 char *tmp_prefix
= make_relative_prefix (argv
[0],
3852 standard_bindir_prefix
,
3853 target_system_root
);
3854 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3856 target_system_root
= tmp_prefix
;
3857 target_system_root_changed
= 1;
3862 /* More prefixes are enabled in main, after we read the specs file
3863 and determine whether this is cross-compilation or not. */
3865 /* Then create the space for the vectors and scan again. */
3867 switches
= ((struct switchstr
*)
3868 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3869 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3872 last_language_n_infiles
= -1;
3874 /* This, time, copy the text of each switch and store a pointer
3875 to the copy in the vector of switches.
3876 Store all the infiles in their vector. */
3878 for (i
= 1; i
< argc
; i
++)
3880 /* Just skip the switches that were handled by the preceding loop. */
3881 #ifdef MODIFY_TARGET_NAME
3882 is_modify_target_name
= 0;
3884 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3885 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3886 is_modify_target_name
= 1;
3888 if (is_modify_target_name
)
3892 if (! strncmp (argv
[i
], "-Wa,", 4))
3894 else if (! strncmp (argv
[i
], "-Wp,", 4))
3896 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3898 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3900 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3902 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3904 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3906 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3908 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3910 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3912 else if (! strcmp (argv
[i
], "-ftarget-help"))
3914 else if (! strcmp (argv
[i
], "-fhelp"))
3916 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3918 /* Compensate for the +e options to the C++ front-end;
3919 they're there simply for cfront call-compatibility. We do
3920 some magic in default_compilers to pass them down properly.
3921 Note we deliberately start at the `+' here, to avoid passing
3922 -e0 or -e1 down into the linker. */
3923 switches
[n_switches
].part1
= &argv
[i
][0];
3924 switches
[n_switches
].args
= 0;
3925 switches
[n_switches
].live_cond
= SWITCH_OK
;
3926 switches
[n_switches
].validated
= 0;
3929 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3932 /* Split the argument at commas. */
3934 for (j
= 4; argv
[i
][j
]; j
++)
3935 if (argv
[i
][j
] == ',')
3937 infiles
[n_infiles
].language
= "*";
3938 infiles
[n_infiles
++].name
3939 = save_string (argv
[i
] + prev
, j
- prev
);
3942 /* Record the part after the last comma. */
3943 infiles
[n_infiles
].language
= "*";
3944 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3946 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3948 infiles
[n_infiles
].language
= "*";
3949 infiles
[n_infiles
++].name
= argv
[++i
];
3951 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3953 infiles
[n_infiles
].language
= "*";
3954 infiles
[n_infiles
++].name
= argv
[++i
];
3956 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3958 infiles
[n_infiles
].language
= "*";
3959 infiles
[n_infiles
++].name
= argv
[++i
];
3961 else if (strcmp (argv
[i
], "-l") == 0)
3962 { /* POSIX allows separation of -l and the lib arg;
3963 canonicalize by concatenating -l with its arg */
3964 infiles
[n_infiles
].language
= "*";
3965 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3967 else if (strncmp (argv
[i
], "-l", 2) == 0)
3969 infiles
[n_infiles
].language
= "*";
3970 infiles
[n_infiles
++].name
= argv
[i
];
3972 else if (strcmp (argv
[i
], "-specs") == 0)
3974 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3976 else if (strcmp (argv
[i
], "-time") == 0)
3978 else if (strcmp (argv
[i
], "-###") == 0)
3980 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3982 const char *p
= &argv
[i
][1];
3987 if (p
[1] == 0 && i
+ 1 == argc
)
3988 fatal ("argument to `-x' is missing");
3990 spec_lang
= argv
[++i
];
3993 if (! strcmp (spec_lang
, "none"))
3994 /* Suppress the warning if -xnone comes after the last input
3995 file, because alternate command interfaces like g++ might
3996 find it useful to place -xnone after each input file. */
3999 last_language_n_infiles
= n_infiles
;
4002 switches
[n_switches
].part1
= p
;
4003 /* Deal with option arguments in separate argv elements. */
4004 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4005 || WORD_SWITCH_TAKES_ARG (p
))
4008 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4012 /* Count only the option arguments in separate argv elements. */
4013 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4015 if (i
+ n_args
>= argc
)
4016 fatal ("argument to `-%s' is missing", p
);
4017 switches
[n_switches
].args
4018 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
4020 switches
[n_switches
].args
[j
++] = argv
[++i
];
4021 /* Null-terminate the vector. */
4022 switches
[n_switches
].args
[j
] = 0;
4024 else if (strchr (switches_need_spaces
, c
))
4026 /* On some systems, ld cannot handle some options without
4027 a space. So split the option from its argument. */
4028 char *part1
= (char *) xmalloc (2);
4032 switches
[n_switches
].part1
= part1
;
4033 switches
[n_switches
].args
4034 = (const char **) xmalloc (2 * sizeof (const char *));
4035 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4036 switches
[n_switches
].args
[1] = 0;
4039 switches
[n_switches
].args
= 0;
4041 switches
[n_switches
].live_cond
= SWITCH_OK
;
4042 switches
[n_switches
].validated
= 0;
4043 switches
[n_switches
].ordering
= 0;
4044 /* These are always valid, since gcc.c itself understands them. */
4045 if (!strcmp (p
, "save-temps")
4046 || !strcmp (p
, "static-libgcc")
4047 || !strcmp (p
, "shared-libgcc")
4048 || !strcmp (p
, "pipe"))
4049 switches
[n_switches
].validated
= 1;
4052 char ch
= switches
[n_switches
].part1
[0];
4054 switches
[n_switches
].validated
= 1;
4060 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4061 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4064 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4066 perror_with_name (argv
[i
]);
4071 infiles
[n_infiles
].language
= spec_lang
;
4072 infiles
[n_infiles
++].name
= argv
[i
];
4077 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4078 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4080 /* Ensure we only invoke each subprocess once. */
4081 if (target_help_flag
|| print_help_list
)
4085 /* Create a dummy input file, so that we can pass --target-help on to
4086 the various sub-processes. */
4087 infiles
[0].language
= "c";
4088 infiles
[0].name
= "help-dummy";
4090 if (target_help_flag
)
4092 switches
[n_switches
].part1
= "--target-help";
4093 switches
[n_switches
].args
= 0;
4094 switches
[n_switches
].live_cond
= SWITCH_OK
;
4095 switches
[n_switches
].validated
= 0;
4100 if (print_help_list
)
4102 switches
[n_switches
].part1
= "--help";
4103 switches
[n_switches
].args
= 0;
4104 switches
[n_switches
].live_cond
= SWITCH_OK
;
4105 switches
[n_switches
].validated
= 0;
4111 switches
[n_switches
].part1
= 0;
4112 infiles
[n_infiles
].name
= 0;
4115 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4116 and place that in the environment. */
4119 set_collect_gcc_options ()
4124 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4126 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4127 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4130 for (i
= 0; (int) i
< n_switches
; i
++)
4132 const char *const *args
;
4135 obstack_grow (&collect_obstack
, " ", 1);
4139 /* Ignore elided switches. */
4140 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4143 obstack_grow (&collect_obstack
, "'-", 2);
4144 q
= switches
[i
].part1
;
4145 while ((p
= strchr (q
, '\'')))
4147 obstack_grow (&collect_obstack
, q
, p
- q
);
4148 obstack_grow (&collect_obstack
, "'\\''", 4);
4151 obstack_grow (&collect_obstack
, q
, strlen (q
));
4152 obstack_grow (&collect_obstack
, "'", 1);
4154 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4156 obstack_grow (&collect_obstack
, " '", 2);
4158 while ((p
= strchr (q
, '\'')))
4160 obstack_grow (&collect_obstack
, q
, p
- q
);
4161 obstack_grow (&collect_obstack
, "'\\''", 4);
4164 obstack_grow (&collect_obstack
, q
, strlen (q
));
4165 obstack_grow (&collect_obstack
, "'", 1);
4168 obstack_grow (&collect_obstack
, "\0", 1);
4169 putenv (obstack_finish (&collect_obstack
));
4172 /* Process a spec string, accumulating and running commands. */
4174 /* These variables describe the input file name.
4175 input_file_number is the index on outfiles of this file,
4176 so that the output file name can be stored for later use by %o.
4177 input_basename is the start of the part of the input file
4178 sans all directory names, and basename_length is the number
4179 of characters starting there excluding the suffix .c or whatever. */
4181 const char *input_filename
;
4182 static int input_file_number
;
4183 size_t input_filename_length
;
4184 static int basename_length
;
4185 static int suffixed_basename_length
;
4186 static const char *input_basename
;
4187 static const char *input_suffix
;
4188 static struct stat input_stat
;
4189 static int input_stat_set
;
4191 /* The compiler used to process the current input file. */
4192 static struct compiler
*input_file_compiler
;
4194 /* These are variables used within do_spec and do_spec_1. */
4196 /* Nonzero if an arg has been started and not yet terminated
4197 (with space, tab or newline). */
4198 static int arg_going
;
4200 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4201 is a temporary file name. */
4202 static int delete_this_arg
;
4204 /* Nonzero means %w has been seen; the next arg to be terminated
4205 is the output file name of this compilation. */
4206 static int this_is_output_file
;
4208 /* Nonzero means %s has been seen; the next arg to be terminated
4209 is the name of a library file and we should try the standard
4210 search dirs for it. */
4211 static int this_is_library_file
;
4213 /* Nonzero means that the input of this command is coming from a pipe. */
4214 static int input_from_pipe
;
4216 /* Nonnull means substitute this for any suffix when outputting a switches
4218 static const char *suffix_subst
;
4220 /* Process the spec SPEC and run the commands specified therein.
4221 Returns 0 if the spec is successfully processed; -1 if failed. */
4229 value
= do_spec_2 (spec
);
4231 /* Force out any unfinished command.
4232 If -pipe, this forces out the last command if it ended in `|'. */
4235 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4238 set_collect_gcc_options ();
4240 if (argbuf_index
> 0)
4253 delete_this_arg
= 0;
4254 this_is_output_file
= 0;
4255 this_is_library_file
= 0;
4256 input_from_pipe
= 0;
4257 suffix_subst
= NULL
;
4259 return do_spec_1 (spec
, 0, NULL
);
4263 /* Process the given spec string and add any new options to the end
4264 of the switches/n_switches array. */
4271 do_spec_1 (" ", 0, NULL
);
4273 if (argbuf_index
> 0)
4278 n_switches
+= argbuf_index
;
4279 switches
= xrealloc (switches
,
4280 sizeof (struct switchstr
) * (n_switches
+ 1));
4282 switches
[n_switches
] = switches
[first
];
4283 for (i
= 0; i
< argbuf_index
; i
++)
4285 struct switchstr
*sw
;
4287 /* Each switch should start with '-'. */
4288 if (argbuf
[i
][0] != '-')
4291 sw
= &switches
[i
+ first
];
4292 sw
->part1
= &argbuf
[i
][1];
4294 sw
->live_cond
= SWITCH_OK
;
4301 /* Process the sub-spec SPEC as a portion of a larger spec.
4302 This is like processing a whole spec except that we do
4303 not initialize at the beginning and we do not supply a
4304 newline by default at the end.
4305 INSWITCH nonzero means don't process %-sequences in SPEC;
4306 in this case, % is treated as an ordinary character.
4307 This is used while substituting switches.
4308 INSWITCH nonzero also causes SPC not to terminate an argument.
4310 Value is zero unless a line was finished
4311 and the command on that line reported an error. */
4314 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4317 const char *soft_matched_part
;
4319 const char *p
= spec
;
4326 /* If substituting a switch, treat all chars like letters.
4327 Otherwise, NL, SPC, TAB and % are special. */
4328 switch (inswitch
? 'a' : c
)
4331 /* End of line: finish any pending argument,
4332 then run the pending command if one has been started. */
4335 obstack_1grow (&obstack
, 0);
4336 string
= obstack_finish (&obstack
);
4337 if (this_is_library_file
)
4338 string
= find_file (string
);
4339 store_arg (string
, delete_this_arg
, this_is_output_file
);
4340 if (this_is_output_file
)
4341 outfiles
[input_file_number
] = string
;
4345 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4347 /* A `|' before the newline means use a pipe here,
4348 but only if -pipe was specified.
4349 Otherwise, execute now and don't pass the `|' as an arg. */
4352 input_from_pipe
= 1;
4359 set_collect_gcc_options ();
4361 if (argbuf_index
> 0)
4367 /* Reinitialize for a new command, and for a new argument. */
4370 delete_this_arg
= 0;
4371 this_is_output_file
= 0;
4372 this_is_library_file
= 0;
4373 input_from_pipe
= 0;
4377 /* End any pending argument. */
4380 obstack_1grow (&obstack
, 0);
4381 string
= obstack_finish (&obstack
);
4382 if (this_is_library_file
)
4383 string
= find_file (string
);
4384 store_arg (string
, delete_this_arg
, this_is_output_file
);
4385 if (this_is_output_file
)
4386 outfiles
[input_file_number
] = string
;
4390 obstack_1grow (&obstack
, c
);
4396 /* Space or tab ends an argument if one is pending. */
4399 obstack_1grow (&obstack
, 0);
4400 string
= obstack_finish (&obstack
);
4401 if (this_is_library_file
)
4402 string
= find_file (string
);
4403 store_arg (string
, delete_this_arg
, this_is_output_file
);
4404 if (this_is_output_file
)
4405 outfiles
[input_file_number
] = string
;
4407 /* Reinitialize for a new argument. */
4409 delete_this_arg
= 0;
4410 this_is_output_file
= 0;
4411 this_is_library_file
= 0;
4418 fatal ("invalid specification! Bug in cc");
4421 obstack_grow (&obstack
, input_basename
, basename_length
);
4426 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4431 delete_this_arg
= 2;
4434 /* Dump out the directories specified with LIBRARY_PATH,
4435 followed by the absolute directories
4436 that we search for startfiles. */
4439 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4440 size_t bufsize
= 100;
4441 char *buffer
= (char *) xmalloc (bufsize
);
4444 for (; pl
; pl
= pl
->next
)
4446 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4447 /* Used on systems which record the specified -L dirs
4448 and use them to search for dynamic linking. */
4449 /* Relative directories always come from -B,
4450 and it is better not to use them for searching
4451 at run time. In particular, stage1 loses. */
4452 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4455 /* Try subdirectory if there is one. */
4456 if (multilib_dir
!= NULL
4457 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4459 const char *multi_dir
;
4461 multi_dir
= pl
->os_multilib
? multilib_os_dir
4463 if (machine_suffix
&& multilib_dir
)
4465 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4467 bufsize
= (strlen (pl
->prefix
)
4468 + strlen (machine_suffix
)) * 2 + 1;
4469 buffer
= (char *) xrealloc (buffer
, bufsize
);
4470 strcpy (buffer
, pl
->prefix
);
4471 strcat (buffer
, machine_suffix
);
4472 if (is_directory (buffer
, multilib_dir
, 1))
4474 do_spec_1 ("-L", 0, NULL
);
4475 #ifdef SPACE_AFTER_L_OPTION
4476 do_spec_1 (" ", 0, NULL
);
4478 do_spec_1 (buffer
, 1, NULL
);
4479 do_spec_1 (multilib_dir
, 1, NULL
);
4480 /* Make this a separate argument. */
4481 do_spec_1 (" ", 0, NULL
);
4484 if (!pl
->require_machine_suffix
)
4486 if (is_directory (pl
->prefix
, multi_dir
, 1))
4488 do_spec_1 ("-L", 0, NULL
);
4489 #ifdef SPACE_AFTER_L_OPTION
4490 do_spec_1 (" ", 0, NULL
);
4492 do_spec_1 (pl
->prefix
, 1, NULL
);
4493 do_spec_1 (multi_dir
, 1, NULL
);
4494 /* Make this a separate argument. */
4495 do_spec_1 (" ", 0, NULL
);
4501 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4503 do_spec_1 ("-L", 0, NULL
);
4504 #ifdef SPACE_AFTER_L_OPTION
4505 do_spec_1 (" ", 0, NULL
);
4507 do_spec_1 (pl
->prefix
, 1, NULL
);
4508 /* Remove slash from machine_suffix. */
4509 if (strlen (machine_suffix
) >= bufsize
)
4510 bufsize
= strlen (machine_suffix
) * 2 + 1;
4511 buffer
= (char *) xrealloc (buffer
, bufsize
);
4512 strcpy (buffer
, machine_suffix
);
4513 idx
= strlen (buffer
);
4514 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4515 buffer
[idx
- 1] = 0;
4516 do_spec_1 (buffer
, 1, NULL
);
4517 /* Make this a separate argument. */
4518 do_spec_1 (" ", 0, NULL
);
4521 if (!pl
->require_machine_suffix
)
4523 if (is_directory (pl
->prefix
, "", 1))
4525 do_spec_1 ("-L", 0, NULL
);
4526 #ifdef SPACE_AFTER_L_OPTION
4527 do_spec_1 (" ", 0, NULL
);
4529 /* Remove slash from pl->prefix. */
4530 if (strlen (pl
->prefix
) >= bufsize
)
4531 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4532 buffer
= (char *) xrealloc (buffer
, bufsize
);
4533 strcpy (buffer
, pl
->prefix
);
4534 idx
= strlen (buffer
);
4535 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4536 buffer
[idx
- 1] = 0;
4537 do_spec_1 (buffer
, 1, NULL
);
4538 /* Make this a separate argument. */
4539 do_spec_1 (" ", 0, NULL
);
4548 /* %efoo means report an error with `foo' as error message
4549 and don't execute any more commands for this file. */
4553 while (*p
!= 0 && *p
!= '\n')
4555 buf
= (char *) alloca (p
- q
+ 1);
4556 strncpy (buf
, q
, p
- q
);
4563 /* %nfoo means report a notice with `foo' on stderr. */
4567 while (*p
!= 0 && *p
!= '\n')
4569 buf
= (char *) alloca (p
- q
+ 1);
4570 strncpy (buf
, q
, p
- q
);
4572 notice ("%s\n", buf
);
4582 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4583 defined, and it is not a directory, and it is
4584 writable, use it. Otherwise, treat this like any
4585 other temporary file. */
4587 if ((!save_temps_flag
)
4588 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4589 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4591 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4592 strlen (HOST_BIT_BUCKET
));
4593 delete_this_arg
= 0;
4598 goto create_temp_file
;
4602 obstack_1grow (&obstack
, '-');
4603 delete_this_arg
= 0;
4606 /* consume suffix */
4607 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4609 if (p
[0] == '%' && p
[1] == 'O')
4614 goto create_temp_file
;
4618 /* consume suffix */
4619 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4621 if (p
[0] == '%' && p
[1] == 'O')
4626 goto create_temp_file
;
4632 struct temp_name
*t
;
4634 const char *suffix
= p
;
4635 char *saved_suffix
= NULL
;
4637 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4639 suffix_length
= p
- suffix
;
4640 if (p
[0] == '%' && p
[1] == 'O')
4643 /* We don't support extra suffix characters after %O. */
4644 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4646 if (suffix_length
== 0)
4647 suffix
= TARGET_OBJECT_SUFFIX
;
4651 = (char *) xmalloc (suffix_length
4652 + strlen (TARGET_OBJECT_SUFFIX
));
4653 strncpy (saved_suffix
, suffix
, suffix_length
);
4654 strcpy (saved_suffix
+ suffix_length
,
4655 TARGET_OBJECT_SUFFIX
);
4657 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4660 /* If the input_filename has the same suffix specified
4661 for the %g, %u, or %U, and -save-temps is specified,
4662 we could end up using that file as an intermediate
4663 thus clobbering the user's source file (.e.g.,
4664 gcc -save-temps foo.s would clobber foo.s with the
4665 output of cpp0). So check for this condition and
4666 generate a temp file as the intermediate. */
4668 if (save_temps_flag
)
4670 temp_filename_length
= basename_length
+ suffix_length
;
4671 temp_filename
= alloca (temp_filename_length
+ 1);
4672 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4673 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4675 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4676 if (strcmp (temp_filename
, input_filename
) != 0)
4678 struct stat st_temp
;
4680 /* Note, set_input() resets input_stat_set to 0. */
4681 if (input_stat_set
== 0)
4683 input_stat_set
= stat (input_filename
, &input_stat
);
4684 if (input_stat_set
>= 0)
4688 /* If we have the stat for the input_filename
4689 and we can do the stat for the temp_filename
4690 then the they could still refer to the same
4691 file if st_dev/st_ino's are the same. */
4693 if (input_stat_set
!= 1
4694 || stat (temp_filename
, &st_temp
) < 0
4695 || input_stat
.st_dev
!= st_temp
.st_dev
4696 || input_stat
.st_ino
!= st_temp
.st_ino
)
4698 temp_filename
= save_string (temp_filename
,
4699 temp_filename_length
+ 1);
4700 obstack_grow (&obstack
, temp_filename
,
4701 temp_filename_length
);
4703 delete_this_arg
= 0;
4709 /* See if we already have an association of %g/%u/%U and
4711 for (t
= temp_names
; t
; t
= t
->next
)
4712 if (t
->length
== suffix_length
4713 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4714 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4717 /* Make a new association if needed. %u and %j
4719 if (t
== 0 || c
== 'u' || c
== 'j')
4723 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4724 t
->next
= temp_names
;
4727 t
->length
= suffix_length
;
4730 t
->suffix
= saved_suffix
;
4731 saved_suffix
= NULL
;
4734 t
->suffix
= save_string (suffix
, suffix_length
);
4735 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4736 temp_filename
= make_temp_file (t
->suffix
);
4737 temp_filename_length
= strlen (temp_filename
);
4738 t
->filename
= temp_filename
;
4739 t
->filename_length
= temp_filename_length
;
4743 free (saved_suffix
);
4745 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4746 delete_this_arg
= 1;
4752 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4758 struct prefix_list
*pl
= include_prefixes
.plist
;
4760 if (gcc_exec_prefix
)
4762 do_spec_1 ("-iprefix", 1, NULL
);
4763 /* Make this a separate argument. */
4764 do_spec_1 (" ", 0, NULL
);
4765 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4766 do_spec_1 (" ", 0, NULL
);
4769 if (target_system_root_changed
)
4771 do_spec_1 ("-isysroot", 1, NULL
);
4772 /* Make this a separate argument. */
4773 do_spec_1 (" ", 0, NULL
);
4774 do_spec_1 (target_system_root
, 1, NULL
);
4775 do_spec_1 (" ", 0, NULL
);
4778 for (; pl
; pl
= pl
->next
)
4780 do_spec_1 ("-isystem", 1, NULL
);
4781 /* Make this a separate argument. */
4782 do_spec_1 (" ", 0, NULL
);
4783 do_spec_1 (pl
->prefix
, 1, NULL
);
4784 do_spec_1 (" ", 0, NULL
);
4791 int max
= n_infiles
;
4792 max
+= lang_specific_extra_outfiles
;
4794 for (i
= 0; i
< max
; i
++)
4796 store_arg (outfiles
[i
], 0, 0);
4801 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4806 this_is_library_file
= 1;
4810 outfiles
[input_file_number
] = NULL
;
4814 this_is_output_file
= 1;
4819 int cur_index
= argbuf_index
;
4820 /* Handle the {...} following the %W. */
4823 p
= handle_braces (p
+ 1);
4826 /* End any pending argument. */
4829 obstack_1grow (&obstack
, 0);
4830 string
= obstack_finish (&obstack
);
4831 if (this_is_library_file
)
4832 string
= find_file (string
);
4833 store_arg (string
, delete_this_arg
, this_is_output_file
);
4834 if (this_is_output_file
)
4835 outfiles
[input_file_number
] = string
;
4838 /* If any args were output, mark the last one for deletion
4840 if (argbuf_index
!= cur_index
)
4841 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4845 /* %x{OPTION} records OPTION for %X to output. */
4851 /* Skip past the option value and make a copy. */
4856 string
= save_string (p1
+ 1, p
- p1
- 2);
4858 /* See if we already recorded this option. */
4859 for (i
= 0; i
< n_linker_options
; i
++)
4860 if (! strcmp (string
, linker_options
[i
]))
4866 /* This option is new; add it. */
4867 add_linker_option (string
, strlen (string
));
4871 /* Dump out the options accumulated previously using %x. */
4873 for (i
= 0; i
< n_linker_options
; i
++)
4875 do_spec_1 (linker_options
[i
], 1, NULL
);
4876 /* Make each accumulated option a separate argument. */
4877 do_spec_1 (" ", 0, NULL
);
4881 /* Dump out the options accumulated previously using -Wa,. */
4883 for (i
= 0; i
< n_assembler_options
; i
++)
4885 do_spec_1 (assembler_options
[i
], 1, NULL
);
4886 /* Make each accumulated option a separate argument. */
4887 do_spec_1 (" ", 0, NULL
);
4891 /* Dump out the options accumulated previously using -Wp,. */
4893 for (i
= 0; i
< n_preprocessor_options
; i
++)
4895 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4896 /* Make each accumulated option a separate argument. */
4897 do_spec_1 (" ", 0, NULL
);
4901 /* Here are digits and numbers that just process
4902 a certain constant string as a spec. */
4905 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4911 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4917 value
= do_spec_1 (asm_spec
, 0, NULL
);
4923 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4930 const char *const spec
4931 = (input_file_compiler
->cpp_spec
4932 ? input_file_compiler
->cpp_spec
4934 value
= do_spec_1 (spec
, 0, NULL
);
4941 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4947 value
= do_spec_1 (link_spec
, 0, NULL
);
4953 value
= do_spec_1 (lib_spec
, 0, NULL
);
4959 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4965 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4971 len
= strlen (multilib_dir
);
4972 obstack_blank (&obstack
, len
+ 1);
4973 p
= obstack_next_free (&obstack
) - (len
+ 1);
4976 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4977 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4983 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4987 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4991 if (! strncmp (y
, "-D", 2))
4992 /* Copy the whole option. */
4993 while (*y
&& *y
!= ' ' && *y
!= '\t')
4995 else if (*y
== ' ' || *y
== '\t')
4996 /* Copy whitespace to the result. */
4998 /* Don't copy other options. */
5005 value
= do_spec_1 (buf
, 0, NULL
);
5013 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
5017 /* Copy all of CPP_PREDEFINES into BUF,
5018 but force them all into the reserved name space if they
5019 aren't already there. The reserved name space is all
5020 identifiers beginning with two underscores or with one
5021 underscore and a capital letter. We do the forcing by
5022 adding up to two underscores to the beginning and end
5023 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
5028 if (! strncmp (y
, "-D", 2))
5037 && ! ISUPPER ((unsigned char) *(y
+ 1))))
5039 /* Stick __ at front of macro name. */
5043 /* Arrange to stick __ at the end as well. */
5047 /* Copy the macro name. */
5048 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
5061 /* Copy the value given, if any. */
5062 while (*y
&& *y
!= ' ' && *y
!= '\t')
5065 else if (*y
== ' ' || *y
== '\t')
5066 /* Copy whitespace to the result. */
5068 /* Don't copy -A options */
5074 /* Copy all of CPP_PREDEFINES into BUF,
5075 but put __ after every -D. */
5079 if (! strncmp (y
, "-D", 2))
5085 && ! ISUPPER ((unsigned char) *(y
+ 1))))
5087 /* Stick -D__ at front of macro name. */
5094 /* Copy the macro name. */
5095 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
5098 /* Copy the value given, if any. */
5099 while (*y
&& *y
!= ' ' && *y
!= '\t')
5104 /* Do not copy this macro - we have just done it before */
5105 while (*y
&& *y
!= ' ' && *y
!= '\t')
5109 else if (*y
== ' ' || *y
== '\t')
5110 /* Copy whitespace to the result. */
5112 /* Don't copy -A options. */
5118 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
5122 if (! strncmp (y
, "-A", 2))
5123 /* Copy the whole option. */
5124 while (*y
&& *y
!= ' ' && *y
!= '\t')
5126 else if (*y
== ' ' || *y
== '\t')
5127 /* Copy whitespace to the result. */
5129 /* Don't copy other options. */
5136 value
= do_spec_1 (buf
, 0, NULL
);
5143 /* We assume there is a directory
5144 separator at the end of this string. */
5145 if (target_system_root
)
5146 obstack_grow (&obstack
, target_system_root
,
5147 strlen (target_system_root
));
5151 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5156 /* Here we define characters other than letters and digits. */
5159 p
= handle_braces (p
);
5162 /* End any pending argument. */
5165 obstack_1grow (&obstack
, 0);
5166 string
= obstack_finish (&obstack
);
5167 if (this_is_library_file
)
5168 string
= find_file (string
);
5169 store_arg (string
, delete_this_arg
, this_is_output_file
);
5170 if (this_is_output_file
)
5171 outfiles
[input_file_number
] = string
;
5177 p
= handle_spec_function (p
);
5183 obstack_1grow (&obstack
, '%');
5190 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5192 suffix_subst
= save_string (p
- 1, len
+ 1);
5197 /* Henceforth ignore the option(s) matching the pattern
5202 int have_wildcard
= 0;
5205 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5208 if (p
[len
-1] == '*')
5211 for (i
= 0; i
< n_switches
; i
++)
5212 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5213 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5215 switches
[i
].live_cond
= SWITCH_IGNORE
;
5216 switches
[i
].validated
= 1;
5224 if (soft_matched_part
)
5226 do_spec_1 (soft_matched_part
, 1, NULL
);
5227 do_spec_1 (" ", 0, NULL
);
5230 /* Catch the case where a spec string contains something like
5231 '%{foo:%*}'. ie there is no * in the pattern on the left
5232 hand side of the :. */
5233 error ("spec failure: '%%*' has not been initialized by pattern match");
5236 /* Process a string found as the value of a spec given by name.
5237 This feature allows individual machine descriptions
5238 to add and use their own specs.
5239 %[...] modifies -D options the way %P does;
5240 %(...) uses the spec unmodified. */
5242 error ("warning: use of obsolete %%[ operator in specs");
5245 const char *name
= p
;
5246 struct spec_list
*sl
;
5249 /* The string after the S/P is the name of a spec that is to be
5251 while (*p
&& *p
!= ')' && *p
!= ']')
5254 /* See if it's in the list. */
5255 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5256 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5258 name
= *(sl
->ptr_spec
);
5260 notice ("Processing spec %c%s%c, which is '%s'\n",
5261 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5270 value
= do_spec_1 (name
, 0, NULL
);
5276 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5278 const char *y
= name
;
5281 /* Copy all of NAME into BUF, but put __ after
5282 every -D and at the end of each arg. */
5285 if (! strncmp (y
, "-D", 2))
5296 && (*y
== ' ' || *y
== '\t' || *y
== '='
5297 || *y
== '}' || *y
== 0))
5310 value
= do_spec_1 (buf
, 0, NULL
);
5316 /* Discard the closing paren or bracket. */
5324 int c1
= *p
++; /* Select first or second version number. */
5325 const char *v
= compiler_version
;
5327 static const char zeroc
= '0';
5329 /* The format of the version string is
5330 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5332 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5333 while (! ISDIGIT (*v
))
5335 if (v
> compiler_version
&& v
[-1] != '-')
5338 /* If desired, advance to second version number. */
5341 /* Set V after the first period. */
5342 while (ISDIGIT (*v
))
5349 /* If desired, advance to third version number.
5350 But don't complain if it's not present */
5353 /* Set V after the second period. */
5354 while (ISDIGIT (*v
))
5356 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5362 /* Set Q at the next period or at the end. */
5364 while (ISDIGIT (*q
))
5366 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5370 /* Put that part into the command. */
5371 obstack_grow (&obstack
, v
, q
- v
);
5373 /* Default to "0" */
5374 obstack_grow (&obstack
, &zeroc
, 1);
5380 error ("spec failure: unrecognized spec option '%c'", c
);
5386 /* Backslash: treat next character as ordinary. */
5391 /* Ordinary character: put it into the current argument. */
5392 obstack_1grow (&obstack
, c
);
5396 /* End of string. If we are processing a spec function, we need to
5397 end any pending argument. */
5398 if (processing_spec_function
&& arg_going
)
5400 obstack_1grow (&obstack
, 0);
5401 string
= obstack_finish (&obstack
);
5402 if (this_is_library_file
)
5403 string
= find_file (string
);
5404 store_arg (string
, delete_this_arg
, this_is_output_file
);
5405 if (this_is_output_file
)
5406 outfiles
[input_file_number
] = string
;
5413 /* Look up a spec function. */
5415 static const struct spec_function
*
5416 lookup_spec_function (name
)
5419 static const struct spec_function
* const spec_function_tables
[] =
5421 static_spec_functions
,
5422 lang_specific_spec_functions
,
5424 const struct spec_function
*sf
;
5427 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5429 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5430 if (strcmp (sf
->name
, name
) == 0)
5437 /* Evaluate a spec function. */
5440 eval_spec_function (func
, args
)
5441 const char *func
, *args
;
5443 const struct spec_function
*sf
;
5444 const char *funcval
;
5446 /* Saved spec processing context. */
5447 int save_argbuf_index
;
5448 int save_argbuf_length
;
5449 const char **save_argbuf
;
5452 int save_delete_this_arg
;
5453 int save_this_is_output_file
;
5454 int save_this_is_library_file
;
5455 int save_input_from_pipe
;
5456 const char *save_suffix_subst
;
5459 sf
= lookup_spec_function (func
);
5461 fatal ("unknown spec function `%s'", func
);
5463 /* Push the spec processing context. */
5464 save_argbuf_index
= argbuf_index
;
5465 save_argbuf_length
= argbuf_length
;
5466 save_argbuf
= argbuf
;
5468 save_arg_going
= arg_going
;
5469 save_delete_this_arg
= delete_this_arg
;
5470 save_this_is_output_file
= this_is_output_file
;
5471 save_this_is_library_file
= this_is_library_file
;
5472 save_input_from_pipe
= input_from_pipe
;
5473 save_suffix_subst
= suffix_subst
;
5475 /* Create a new spec processing context, and build the function
5479 if (do_spec_2 (args
) < 0)
5480 fatal ("error in args to spec function `%s'", func
);
5482 /* argbuf_index is an index for the next argument to be inserted, and
5483 so contains the count of the args already inserted. */
5485 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5487 /* Pop the spec processing context. */
5488 argbuf_index
= save_argbuf_index
;
5489 argbuf_length
= save_argbuf_length
;
5491 argbuf
= save_argbuf
;
5493 arg_going
= save_arg_going
;
5494 delete_this_arg
= save_delete_this_arg
;
5495 this_is_output_file
= save_this_is_output_file
;
5496 this_is_library_file
= save_this_is_library_file
;
5497 input_from_pipe
= save_input_from_pipe
;
5498 suffix_subst
= save_suffix_subst
;
5503 /* Handle a spec function call of the form:
5507 ARGS is processed as a spec in a separate context and split into an
5508 argument vector in the normal fashion. The function returns a string
5509 containing a spec which we then process in the caller's context, or
5510 NULL if no processing is required. */
5513 handle_spec_function (p
)
5517 const char *endp
, *funcval
;
5520 processing_spec_function
++;
5522 /* Get the function name. */
5523 for (endp
= p
; *endp
!= '\0'; endp
++)
5525 if (*endp
== '(') /* ) */
5527 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5528 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5529 fatal ("malformed spec function name");
5531 if (*endp
!= '(') /* ) */
5532 fatal ("no arguments for spec function");
5533 func
= save_string (p
, endp
- p
);
5536 /* Get the arguments. */
5537 for (count
= 0; *endp
!= '\0'; endp
++)
5546 else if (*endp
== '(') /* ) */
5551 fatal ("malformed spec function arguments");
5552 args
= save_string (p
, endp
- p
);
5555 /* p now points to just past the end of the spec function expression. */
5557 funcval
= eval_spec_function (func
, args
);
5558 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5564 processing_spec_function
--;
5569 /* Inline subroutine of handle_braces. Returns true if the current
5570 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5572 input_suffix_matches (atom
, end_atom
)
5574 const char *end_atom
;
5576 return (input_suffix
5577 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5578 && input_suffix
[end_atom
- atom
] == '\0');
5581 /* Inline subroutine of handle_braces. Returns true if a switch
5582 matching the atom bracketed by ATOM and END_ATOM appeared on the
5585 switch_matches (atom
, end_atom
, starred
)
5587 const char *end_atom
;
5591 int len
= end_atom
- atom
;
5592 int plen
= starred
? len
: -1;
5594 for (i
= 0; i
< n_switches
; i
++)
5595 if (!strncmp (switches
[i
].part1
, atom
, len
)
5596 && (starred
|| switches
[i
].part1
[len
] == '\0')
5597 && check_live_switch (i
, plen
))
5603 /* Inline subroutine of handle_braces. Mark all of the switches which
5604 match ATOM (extends to END_ATOM; STARRED indicates whether there
5605 was a star after the atom) for later processing. */
5607 mark_matching_switches (atom
, end_atom
, starred
)
5609 const char *end_atom
;
5613 int len
= end_atom
- atom
;
5614 int plen
= starred
? len
: -1;
5616 for (i
= 0; i
< n_switches
; i
++)
5617 if (!strncmp (switches
[i
].part1
, atom
, len
)
5618 && (starred
|| switches
[i
].part1
[len
] == '\0')
5619 && check_live_switch (i
, plen
))
5620 switches
[i
].ordering
= 1;
5623 /* Inline subroutine of handle_braces. Process all the currently
5624 marked switches through give_switch, and clear the marks. */
5626 process_marked_switches ()
5630 for (i
= 0; i
< n_switches
; i
++)
5631 if (switches
[i
].ordering
== 1)
5633 switches
[i
].ordering
= 0;
5638 /* Handle a %{ ... } construct. P points just inside the leading {.
5639 Returns a pointer one past the end of the brace block, or 0
5640 if we call do_spec_1 and that returns -1. */
5646 const char *atom
, *end_atom
;
5647 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5654 bool a_must_be_last
= false;
5655 bool ordered_set
= false;
5656 bool disjunct_set
= false;
5657 bool disj_matched
= false;
5658 bool disj_starred
= true;
5659 bool n_way_choice
= false;
5660 bool n_way_matched
= false;
5662 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5669 /* Scan one "atom" (S in the description above of %{}, possibly
5670 with !, ., or * modifiers). */
5671 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5675 p
++, a_is_negated
= true;
5679 p
++, a_is_suffix
= true;
5682 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5683 || *p
== ',' || *p
== '.' || *p
== '@')
5688 p
++, a_is_starred
= 1;
5691 if (*p
== '&' || *p
== '}')
5693 /* Substitute the switch(es) indicated by the current atom. */
5695 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5696 || atom
== end_atom
)
5699 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5702 process_marked_switches ();
5704 else if (*p
== '|' || *p
== ':')
5706 /* Substitute some text if the current atom appears as a switch
5708 disjunct_set
= true;
5712 if (atom
== end_atom
)
5714 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5715 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5718 /* An empty term may appear as the last choice of an
5719 N-way choice set; it means "otherwise". */
5720 a_must_be_last
= true;
5721 disj_matched
= !n_way_matched
;
5722 disj_starred
= false;
5726 if (a_is_suffix
&& a_is_starred
)
5730 disj_starred
= false;
5732 /* Don't bother testing this atom if we already have a
5734 if (!disj_matched
&& !n_way_matched
)
5737 a_matched
= input_suffix_matches (atom
, end_atom
);
5739 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5741 if (a_matched
!= a_is_negated
)
5743 disj_matched
= true;
5745 d_end_atom
= end_atom
;
5752 /* Found the body, that is, the text to substitute if the
5753 current disjunction matches. */
5754 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5755 disj_matched
&& !n_way_matched
);
5759 /* If we have an N-way choice, reset state for the next
5763 n_way_choice
= true;
5764 n_way_matched
|= disj_matched
;
5765 disj_matched
= false;
5766 disj_starred
= true;
5767 d_atom
= d_end_atom
= NULL
;
5774 while (*p
++ != '}');
5781 /* Subroutine of handle_braces. Scan and process a brace substitution body
5782 (X in the description of %{} syntax). P points one past the colon;
5783 ATOM and END_ATOM bracket the first atom which was found to be true
5784 (present) in the current disjunction; STARRED indicates whether all
5785 the atoms in the current disjunction were starred (for syntax validation);
5786 MATCHED indicates whether the disjunction matched or not, and therefore
5787 whether or not the body is to be processed through do_spec_1 or just
5788 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5792 process_brace_body (p
, atom
, end_atom
, starred
, matched
)
5795 const char *end_atom
;
5799 const char *body
, *end_body
;
5800 unsigned int nesting_level
;
5801 bool have_subst
= false;
5803 /* Locate the closing } or ;, honoring nested braces.
5804 Trim trailing whitespace. */
5813 if (!--nesting_level
)
5816 else if (*p
== ';' && nesting_level
== 1)
5818 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5820 else if (*p
== '\0')
5826 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5829 if (have_subst
&& !starred
)
5834 /* Copy the substitution body to permanent storage and execute it.
5835 If have_subst is false, this is a simple matter of running the
5836 body through do_spec_1... */
5837 char *string
= save_string (body
, end_body
- body
);
5840 if (do_spec_1 (string
, 0, NULL
) < 0)
5845 /* ... but if have_subst is true, we have to process the
5846 body once for each matching switch, with %* set to the
5847 variant part of the switch. */
5848 unsigned int hard_match_len
= end_atom
- atom
;
5851 for (i
= 0; i
< n_switches
; i
++)
5852 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5853 && check_live_switch (i
, hard_match_len
))
5855 if (do_spec_1 (string
, 0,
5856 &switches
[i
].part1
[hard_match_len
]) < 0)
5858 /* Pass any arguments this switch has. */
5860 suffix_subst
= NULL
;
5868 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5869 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5870 spec, or -1 if either exact match or %* is used.
5872 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5873 whose value does not begin with "no-" is obsoleted by the same value
5874 with the "no-", similarly for a switch with the "no-" prefix. */
5877 check_live_switch (switchnum
, prefix_length
)
5881 const char *name
= switches
[switchnum
].part1
;
5884 /* In the common case of {<at-most-one-letter>*}, a negating
5885 switch would always match, so ignore that case. We will just
5886 send the conflicting switches to the compiler phase. */
5887 if (prefix_length
>= 0 && prefix_length
<= 1)
5890 /* If we already processed this switch and determined if it was
5891 live or not, return our past determination. */
5892 if (switches
[switchnum
].live_cond
!= 0)
5893 return switches
[switchnum
].live_cond
> 0;
5895 /* Now search for duplicate in a manner that depends on the name. */
5899 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5900 if (switches
[i
].part1
[0] == 'O')
5902 switches
[switchnum
].validated
= 1;
5903 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5908 case 'W': case 'f': case 'm':
5909 if (! strncmp (name
+ 1, "no-", 3))
5911 /* We have Xno-YYY, search for XYYY. */
5912 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5913 if (switches
[i
].part1
[0] == name
[0]
5914 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5916 switches
[switchnum
].validated
= 1;
5917 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5923 /* We have XYYY, search for Xno-YYY. */
5924 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5925 if (switches
[i
].part1
[0] == name
[0]
5926 && switches
[i
].part1
[1] == 'n'
5927 && switches
[i
].part1
[2] == 'o'
5928 && switches
[i
].part1
[3] == '-'
5929 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5931 switches
[switchnum
].validated
= 1;
5932 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5939 /* Otherwise the switch is live. */
5940 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5944 /* Pass a switch to the current accumulating command
5945 in the same form that we received it.
5946 SWITCHNUM identifies the switch; it is an index into
5947 the vector of switches gcc received, which is `switches'.
5948 This cannot fail since it never finishes a command line.
5950 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5953 give_switch (switchnum
, omit_first_word
)
5955 int omit_first_word
;
5957 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5960 if (!omit_first_word
)
5962 do_spec_1 ("-", 0, NULL
);
5963 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5966 if (switches
[switchnum
].args
!= 0)
5969 for (p
= switches
[switchnum
].args
; *p
; p
++)
5971 const char *arg
= *p
;
5973 do_spec_1 (" ", 0, NULL
);
5976 unsigned length
= strlen (arg
);
5979 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5980 if (arg
[length
] == '.')
5982 ((char *)arg
)[length
] = 0;
5986 do_spec_1 (arg
, 1, NULL
);
5988 ((char *)arg
)[length
] = '.';
5989 do_spec_1 (suffix_subst
, 1, NULL
);
5992 do_spec_1 (arg
, 1, NULL
);
5996 do_spec_1 (" ", 0, NULL
);
5997 switches
[switchnum
].validated
= 1;
6000 /* Search for a file named NAME trying various prefixes including the
6001 user's -B prefix and some standard ones.
6002 Return the absolute file name found. If nothing is found, return NAME. */
6010 /* Try multilib_dir if it is defined. */
6011 if (multilib_os_dir
!= NULL
)
6013 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
6015 /* If we don't find it in the multi library dir, then fall
6016 through and look for it in the normal places. */
6017 if (newname
!= NULL
)
6021 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
6022 return newname
? newname
: name
;
6025 /* Determine whether a directory exists. If LINKER, return 0 for
6026 certain fixed names not needed by the linker. If not LINKER, it is
6027 only important to return 0 if the host machine has a small ARG_MAX
6031 is_directory (path1
, path2
, linker
)
6036 int len1
= strlen (path1
);
6037 int len2
= strlen (path2
);
6038 char *path
= (char *) alloca (3 + len1
+ len2
);
6042 #ifndef SMALL_ARG_MAX
6047 /* Construct the path from the two parts. Ensure the string ends with "/.".
6048 The resulting path will be a directory even if the given path is a
6050 memcpy (path
, path1
, len1
);
6051 memcpy (path
+ len1
, path2
, len2
);
6052 cp
= path
+ len1
+ len2
;
6053 if (!IS_DIR_SEPARATOR (cp
[-1]))
6054 *cp
++ = DIR_SEPARATOR
;
6058 /* Exclude directories that the linker is known to search. */
6061 && strcmp (path
, concat (dir_separator_str
, "lib",
6062 dir_separator_str
, ".", NULL
)) == 0)
6064 && strcmp (path
, concat (dir_separator_str
, "usr",
6065 dir_separator_str
, "lib",
6066 dir_separator_str
, ".", NULL
)) == 0)))
6069 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6072 /* Set up the various global variables to indicate that we're processing
6073 the input file named FILENAME. */
6076 set_input (filename
)
6077 const char *filename
;
6081 input_filename
= filename
;
6082 input_filename_length
= strlen (input_filename
);
6084 input_basename
= input_filename
;
6085 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6086 /* Skip drive name so 'x:foo' is handled properly. */
6087 if (input_basename
[1] == ':')
6088 input_basename
+= 2;
6090 for (p
= input_basename
; *p
; p
++)
6091 if (IS_DIR_SEPARATOR (*p
))
6092 input_basename
= p
+ 1;
6094 /* Find a suffix starting with the last period,
6095 and set basename_length to exclude that suffix. */
6096 basename_length
= strlen (input_basename
);
6097 suffixed_basename_length
= basename_length
;
6098 p
= input_basename
+ basename_length
;
6099 while (p
!= input_basename
&& *p
!= '.')
6101 if (*p
== '.' && p
!= input_basename
)
6103 basename_length
= p
- input_basename
;
6104 input_suffix
= p
+ 1;
6109 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6110 we will need to do a stat on the input_filename. The
6111 INPUT_STAT_SET signals that the stat is needed. */
6115 /* On fatal signals, delete all the temporary files. */
6118 fatal_error (signum
)
6121 signal (signum
, SIG_DFL
);
6122 delete_failure_queue ();
6123 delete_temp_files ();
6124 /* Get the same signal again, this time not handled,
6125 so its normal effect occurs. */
6126 kill (getpid (), signum
);
6129 extern int main
PARAMS ((int, const char *const *));
6134 const char *const *argv
;
6138 int linker_was_run
= 0;
6139 int num_linker_inputs
= 0;
6140 char *explicit_link_files
;
6143 struct user_specs
*uptr
;
6145 p
= argv
[0] + strlen (argv
[0]);
6146 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6150 xmalloc_set_program_name (programname
);
6152 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6153 /* Perform host dependent initialization when needed. */
6154 GCC_DRIVER_HOST_INITIALIZATION
;
6157 gcc_init_libintl ();
6159 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6160 signal (SIGINT
, fatal_error
);
6162 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6163 signal (SIGHUP
, fatal_error
);
6165 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6166 signal (SIGTERM
, fatal_error
);
6168 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6169 signal (SIGPIPE
, fatal_error
);
6172 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6173 receive the signal. A different setting is inheritable */
6174 signal (SIGCHLD
, SIG_DFL
);
6177 /* Allocate the argument vector. */
6180 obstack_init (&obstack
);
6182 /* Build multilib_select, et. al from the separate lines that make up each
6183 multilib selection. */
6185 const char *const *q
= multilib_raw
;
6188 obstack_init (&multilib_obstack
);
6189 while ((p
= *q
++) != (char *) 0)
6190 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6192 obstack_1grow (&multilib_obstack
, 0);
6193 multilib_select
= obstack_finish (&multilib_obstack
);
6195 q
= multilib_matches_raw
;
6196 while ((p
= *q
++) != (char *) 0)
6197 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6199 obstack_1grow (&multilib_obstack
, 0);
6200 multilib_matches
= obstack_finish (&multilib_obstack
);
6202 q
= multilib_exclusions_raw
;
6203 while ((p
= *q
++) != (char *) 0)
6204 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6206 obstack_1grow (&multilib_obstack
, 0);
6207 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6210 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6213 obstack_1grow (&multilib_obstack
, ' ');
6214 obstack_grow (&multilib_obstack
,
6215 multilib_defaults_raw
[i
],
6216 strlen (multilib_defaults_raw
[i
]));
6220 obstack_1grow (&multilib_obstack
, 0);
6221 multilib_defaults
= obstack_finish (&multilib_obstack
);
6224 /* Set up to remember the pathname of gcc and any options
6225 needed for collect. We use argv[0] instead of programname because
6226 we need the complete pathname. */
6227 obstack_init (&collect_obstack
);
6228 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6229 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6230 putenv (obstack_finish (&collect_obstack
));
6232 #ifdef INIT_ENVIRONMENT
6233 /* Set up any other necessary machine specific environment variables. */
6234 putenv (INIT_ENVIRONMENT
);
6237 /* Make a table of what switches there are (switches, n_switches).
6238 Make a table of specified input files (infiles, n_infiles).
6239 Decode switches that are handled locally. */
6241 process_command (argc
, argv
);
6243 /* Initialize the vector of specs to just the default.
6244 This means one element containing 0s, as a terminator. */
6246 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
6247 memcpy ((char *) compilers
, (char *) default_compilers
,
6248 sizeof default_compilers
);
6249 n_compilers
= n_default_compilers
;
6251 /* Read specs from a file if there is one. */
6253 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6254 spec_version
, dir_separator_str
, NULL
);
6255 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6257 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6258 /* Read the specs file unless it is a default one. */
6259 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6260 read_specs (specs_file
, TRUE
);
6264 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6265 for any override of as, ld and libraries. */
6266 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6267 + strlen (just_machine_suffix
)
6268 + sizeof ("specs"));
6270 strcpy (specs_file
, standard_exec_prefix
);
6271 strcat (specs_file
, just_machine_suffix
);
6272 strcat (specs_file
, "specs");
6273 if (access (specs_file
, R_OK
) == 0)
6274 read_specs (specs_file
, TRUE
);
6276 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6277 of the command line. */
6279 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6280 do_self_spec (driver_self_specs
[i
]);
6282 /* If not cross-compiling, look for executables in the standard
6284 if (*cross_compile
== '0')
6286 if (*md_exec_prefix
)
6288 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6289 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6293 /* Look for startfiles in the standard places. */
6294 if (*startfile_prefix_spec
!= 0
6295 && do_spec_2 (startfile_prefix_spec
) == 0
6296 && do_spec_1 (" ", 0, NULL
) == 0)
6299 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6300 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6301 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6303 /* We should eventually get rid of all these and stick to
6304 startfile_prefix_spec exclusively. */
6305 else if (*cross_compile
== '0' || target_system_root
)
6307 if (*md_exec_prefix
)
6308 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6309 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6311 if (*md_startfile_prefix
)
6312 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6313 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6315 if (*md_startfile_prefix_1
)
6316 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6317 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6319 /* If standard_startfile_prefix is relative, base it on
6320 standard_exec_prefix. This lets us move the installed tree
6321 as a unit. If GCC_EXEC_PREFIX is defined, base
6322 standard_startfile_prefix on that as well. */
6323 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
6324 add_sysrooted_prefix (&startfile_prefixes
,
6325 standard_startfile_prefix
, "BINUTILS",
6326 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6329 if (gcc_exec_prefix
)
6330 add_prefix (&startfile_prefixes
,
6331 concat (gcc_exec_prefix
, machine_suffix
,
6332 standard_startfile_prefix
, NULL
),
6333 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6334 add_prefix (&startfile_prefixes
,
6335 concat (standard_exec_prefix
,
6337 standard_startfile_prefix
, NULL
),
6338 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6341 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6342 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6343 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6344 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6345 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6346 add_prefix (&startfile_prefixes
, "./", NULL
,
6347 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6351 /* Process any user specified specs in the order given on the command
6353 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6355 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6357 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6360 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6361 if (gcc_exec_prefix
)
6362 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6363 spec_version
, dir_separator_str
, NULL
);
6365 /* Now we have the specs.
6366 Set the `valid' bits for switches that match anything in any spec. */
6368 validate_all_switches ();
6370 /* Now that we have the switches and the specs, set
6371 the subdirectory based on the options. */
6372 set_multilib_dir ();
6374 /* Warn about any switches that no pass was interested in. */
6376 for (i
= 0; (int) i
< n_switches
; i
++)
6377 if (! switches
[i
].validated
)
6378 error ("unrecognized option `-%s'", switches
[i
].part1
);
6380 /* Obey some of the options. */
6382 if (print_search_dirs
)
6384 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6385 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6386 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6390 if (print_file_name
)
6392 printf ("%s\n", find_file (print_file_name
));
6396 if (print_prog_name
)
6398 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6399 printf ("%s\n", (newname
? newname
: print_prog_name
));
6403 if (print_multi_lib
)
6405 print_multilib_info ();
6409 if (print_multi_directory
)
6411 if (multilib_dir
== NULL
)
6414 printf ("%s\n", multilib_dir
);
6418 if (print_multi_os_directory
)
6420 if (multilib_os_dir
== NULL
)
6423 printf ("%s\n", multilib_os_dir
);
6427 if (target_help_flag
)
6429 /* Print if any target specific options. */
6431 /* We do not exit here. Instead we have created a fake input file
6432 called 'target-dummy' which needs to be compiled, and we pass this
6433 on to the various sub-processes, along with the --target-help
6437 if (print_help_list
)
6443 printf (_("\nFor bug reporting instructions, please see:\n"));
6444 printf ("%s.\n", bug_report_url
);
6449 /* We do not exit here. Instead we have created a fake input file
6450 called 'help-dummy' which needs to be compiled, and we pass this
6451 on the various sub-processes, along with the --help switch. */
6459 notice ("Configured with: %s\n", configuration_arguments
);
6461 #ifdef THREAD_MODEL_SPEC
6462 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6463 but there's no point in doing all this processing just to get
6464 thread_model back. */
6465 obstack_init (&obstack
);
6466 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6467 obstack_1grow (&obstack
, '\0');
6468 thrmod
= obstack_finish (&obstack
);
6470 thrmod
= thread_model
;
6473 notice ("Thread model: %s\n", thrmod
);
6475 /* compiler_version is truncated at the first space when initialized
6476 from version string, so truncate version_string at the first space
6477 before comparing. */
6478 for (n
= 0; version_string
[n
]; n
++)
6479 if (version_string
[n
] == ' ')
6482 if (! strncmp (version_string
, compiler_version
, n
)
6483 && compiler_version
[n
] == 0)
6484 notice ("gcc version %s\n", version_string
);
6486 notice ("gcc driver version %s executing gcc version %s\n",
6487 version_string
, compiler_version
);
6493 if (n_infiles
== added_libraries
)
6494 fatal ("no input files");
6496 /* Make a place to record the compiler output file names
6497 that correspond to the input files. */
6500 i
+= lang_specific_extra_outfiles
;
6501 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6503 /* Record which files were specified explicitly as link input. */
6505 explicit_link_files
= xcalloc (1, n_infiles
);
6507 for (i
= 0; (int) i
< n_infiles
; i
++)
6509 int this_file_error
= 0;
6511 /* Tell do_spec what to substitute for %i. */
6513 input_file_number
= i
;
6514 set_input (infiles
[i
].name
);
6516 /* Use the same thing in %o, unless cp->spec says otherwise. */
6518 outfiles
[i
] = input_filename
;
6520 /* Figure out which compiler from the file's suffix. */
6523 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6524 infiles
[i
].language
);
6526 if (input_file_compiler
)
6528 /* Ok, we found an applicable compiler. Run its spec. */
6530 if (input_file_compiler
->spec
[0] == '#')
6532 error ("%s: %s compiler not installed on this system",
6533 input_filename
, &input_file_compiler
->spec
[1]);
6534 this_file_error
= 1;
6538 value
= do_spec (input_file_compiler
->spec
);
6540 this_file_error
= 1;
6544 /* If this file's name does not contain a recognized suffix,
6545 record it as explicit linker input. */
6548 explicit_link_files
[i
] = 1;
6550 /* Clear the delete-on-failure queue, deleting the files in it
6551 if this compilation failed. */
6553 if (this_file_error
)
6555 delete_failure_queue ();
6558 /* If this compilation succeeded, don't delete those files later. */
6559 clear_failure_queue ();
6562 /* Reset the output file name to the first input file name, for use
6563 with %b in LINK_SPEC on a target that prefers not to emit a.out
6566 set_input (infiles
[0].name
);
6568 if (error_count
== 0)
6570 /* Make sure INPUT_FILE_NUMBER points to first available open
6572 input_file_number
= n_infiles
;
6573 if (lang_specific_pre_link ())
6577 /* Determine if there are any linker input files. */
6578 num_linker_inputs
= 0;
6579 for (i
= 0; (int) i
< n_infiles
; i
++)
6580 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6581 num_linker_inputs
++;
6583 /* Run ld to link all the compiler output files. */
6585 if (num_linker_inputs
> 0 && error_count
== 0)
6587 int tmp
= execution_count
;
6589 /* We'll use ld if we can't find collect2. */
6590 if (! strcmp (linker_name_spec
, "collect2"))
6592 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6594 linker_name_spec
= "ld";
6596 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6598 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6599 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6601 value
= do_spec (link_command_spec
);
6604 linker_was_run
= (tmp
!= execution_count
);
6607 /* If options said don't run linker,
6608 complain about input files to be given to the linker. */
6610 if (! linker_was_run
&& error_count
== 0)
6611 for (i
= 0; (int) i
< n_infiles
; i
++)
6612 if (explicit_link_files
[i
])
6613 error ("%s: linker input file unused because linking not done",
6616 /* Delete some or all of the temporary files we made. */
6619 delete_failure_queue ();
6620 delete_temp_files ();
6622 if (print_help_list
)
6624 printf (("\nFor bug reporting instructions, please see:\n"));
6625 printf ("%s\n", bug_report_url
);
6628 return (signal_count
!= 0 ? 2
6629 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6633 /* Find the proper compilation spec for the file name NAME,
6634 whose length is LENGTH. LANGUAGE is the specified language,
6635 or 0 if this file is to be passed to the linker. */
6637 static struct compiler
*
6638 lookup_compiler (name
, length
, language
)
6641 const char *language
;
6643 struct compiler
*cp
;
6645 /* If this was specified by the user to be a linker input, indicate that. */
6646 if (language
!= 0 && language
[0] == '*')
6649 /* Otherwise, look for the language, if one is spec'd. */
6652 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6653 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6656 error ("language %s not recognized", language
);
6660 /* Look for a suffix. */
6661 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6663 if (/* The suffix `-' matches only the file name `-'. */
6664 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6665 || (strlen (cp
->suffix
) < length
6666 /* See if the suffix matches the end of NAME. */
6667 && !strcmp (cp
->suffix
,
6668 name
+ length
- strlen (cp
->suffix
))
6673 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6674 /* look again, but case-insensitively this time. */
6676 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6678 if (/* The suffix `-' matches only the file name `-'. */
6679 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6680 || (strlen (cp
->suffix
) < length
6681 /* See if the suffix matches the end of NAME. */
6682 && ((!strcmp (cp
->suffix
,
6683 name
+ length
- strlen (cp
->suffix
))
6684 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6685 && !strcasecmp (cp
->suffix
,
6686 name
+ length
- strlen (cp
->suffix
)))
6692 if (cp
>= compilers
)
6694 if (cp
->spec
[0] != '@')
6695 /* A non-alias entry: return it. */
6698 /* An alias entry maps a suffix to a language.
6699 Search for the language; pass 0 for NAME and LENGTH
6700 to avoid infinite recursion if language not found. */
6701 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6707 save_string (s
, len
)
6711 char *result
= xmalloc (len
+ 1);
6713 memcpy (result
, s
, len
);
6719 pfatal_with_name (name
)
6722 perror_with_name (name
);
6723 delete_temp_files ();
6728 perror_with_name (name
)
6731 error ("%s: %s", name
, xstrerror (errno
));
6735 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6736 const char *errmsg_fmt
;
6737 const char *errmsg_arg
;
6741 int save_errno
= errno
;
6743 /* Space for trailing '\0' is in %s. */
6744 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6745 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6751 pfatal_with_name (errmsg_fmt
);
6754 /* Output an error message and exit */
6759 fatal ("internal gcc abort");
6762 /* Output an error message and exit */
6765 fatal
VPARAMS ((const char *msgid
, ...))
6767 VA_OPEN (ap
, msgid
);
6768 VA_FIXEDARG (ap
, const char *, msgid
);
6770 fprintf (stderr
, "%s: ", programname
);
6771 vfprintf (stderr
, _(msgid
), ap
);
6773 fprintf (stderr
, "\n");
6774 delete_temp_files ();
6779 error
VPARAMS ((const char *msgid
, ...))
6781 VA_OPEN (ap
, msgid
);
6782 VA_FIXEDARG (ap
, const char *, msgid
);
6784 fprintf (stderr
, "%s: ", programname
);
6785 vfprintf (stderr
, _(msgid
), ap
);
6788 fprintf (stderr
, "\n");
6792 notice
VPARAMS ((const char *msgid
, ...))
6794 VA_OPEN (ap
, msgid
);
6795 VA_FIXEDARG (ap
, const char *, msgid
);
6797 vfprintf (stderr
, _(msgid
), ap
);
6802 validate_switches_from_spec (spec
)
6805 const char *p
= spec
;
6808 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6809 /* We have a switch spec. */
6810 p
= validate_switches (p
+ 1);
6814 validate_all_switches ()
6816 struct compiler
*comp
;
6817 struct spec_list
*spec
;
6819 for (comp
= compilers
; comp
->spec
; comp
++)
6820 validate_switches_from_spec (comp
->spec
);
6822 /* Look through the linked list of specs read from the specs file. */
6823 for (spec
= specs
; spec
; spec
= spec
->next
)
6824 validate_switches_from_spec (*spec
->ptr_spec
);
6826 validate_switches_from_spec (link_command_spec
);
6829 /* Look at the switch-name that comes after START
6830 and mark as valid all supplied switches that match it. */
6833 validate_switches (start
)
6836 const char *p
= start
;
6840 bool suffix
= false;
6841 bool starred
= false;
6843 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6856 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6857 || *p
== ',' || *p
== '.' || *p
== '@')
6862 starred
= true, p
++;
6868 /* Mark all matching switches as valid. */
6869 for (i
= 0; i
< n_switches
; i
++)
6870 if (!strncmp (switches
[i
].part1
, atom
, len
)
6871 && (starred
|| switches
[i
].part1
[len
] == 0))
6872 switches
[i
].validated
= 1;
6876 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6879 if (*p
&& p
[-1] == ':')
6881 while (*p
&& *p
!= ';' && *p
!= '}')
6886 if (*p
== '{' || *p
== '<')
6887 p
= validate_switches (p
+1);
6888 else if (p
[0] == 'W' && p
[1] == '{')
6889 p
= validate_switches (p
+2);
6896 if (*p
&& p
[-1] == ';')
6910 static struct mdswitchstr
*mdswitches
;
6911 static int n_mdswitches
;
6913 /* Check whether a particular argument was used. The first time we
6914 canonicalize the switches to keep only the ones we care about. */
6924 const char *replace
;
6929 static struct mswitchstr
*mswitches
;
6930 static int n_mswitches
;
6935 struct mswitchstr
*matches
;
6939 /* Break multilib_matches into the component strings of string
6940 and replacement string. */
6941 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6946 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6948 q
= multilib_matches
;
6958 matches
[i
].len
= q
- matches
[i
].str
;
6960 matches
[i
].replace
= ++q
;
6961 while (*q
!= ';' && *q
!= '\0')
6967 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6973 /* Now build a list of the replacement string for switches that we care
6974 about. Make sure we allocate at least one entry. This prevents
6975 xmalloc from calling fatal, and prevents us from re-executing this
6978 = (struct mswitchstr
*)
6979 xmalloc (sizeof (struct mswitchstr
)
6980 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6981 for (i
= 0; i
< n_switches
; i
++)
6983 int xlen
= strlen (switches
[i
].part1
);
6984 for (j
= 0; j
< cnt
; j
++)
6985 if (xlen
== matches
[j
].len
6986 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6988 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6989 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6990 mswitches
[n_mswitches
].replace
= (char *) 0;
6991 mswitches
[n_mswitches
].rep_len
= 0;
6997 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6998 on the command line nor any options mutually incompatible with
7000 for (i
= 0; i
< n_mdswitches
; i
++)
7004 for (q
= multilib_options
; *q
!= '\0'; q
++)
7010 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7011 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7013 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7020 if (*q
!= ' ' && *q
!= '\0')
7022 while (*r
!= ' ' && *r
!= '\0')
7025 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7028 if (used_arg (r
, q
- r
))
7033 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7034 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7035 mswitches
[n_mswitches
].replace
= (char *) 0;
7036 mswitches
[n_mswitches
].rep_len
= 0;
7049 for (i
= 0; i
< n_mswitches
; i
++)
7050 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7057 default_arg (p
, len
)
7063 for (i
= 0; i
< n_mdswitches
; i
++)
7064 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7070 /* Work out the subdirectory to use based on the options. The format of
7071 multilib_select is a list of elements. Each element is a subdirectory
7072 name followed by a list of options followed by a semicolon. The format
7073 of multilib_exclusions is the same, but without the preceding
7074 directory. First gcc will check the exclusions, if none of the options
7075 beginning with an exclamation point are present, and all of the other
7076 options are present, then we will ignore this completely. Passing
7077 that, gcc will consider each multilib_select in turn using the same
7078 rules for matching the options. If a match is found, that subdirectory
7085 unsigned int this_path_len
;
7086 const char *this_path
, *this_arg
;
7087 const char *start
, *end
;
7089 int ok
, ndfltok
, first
;
7092 start
= multilib_defaults
;
7093 while (*start
== ' ' || *start
== '\t')
7095 while (*start
!= '\0')
7098 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7100 while (*start
== ' ' || *start
== '\t')
7109 = (struct mdswitchstr
*) xmalloc (sizeof (struct mdswitchstr
)
7111 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7113 while (*start
== ' ' || *start
== '\t')
7119 for (end
= start
+ 1;
7120 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7123 obstack_grow (&multilib_obstack
, start
, end
- start
);
7124 obstack_1grow (&multilib_obstack
, 0);
7125 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7126 mdswitches
[i
++].len
= end
- start
;
7133 p
= multilib_exclusions
;
7136 /* Ignore newlines. */
7143 /* Check the arguments. */
7157 while (*p
!= ' ' && *p
!= ';')
7164 if (*this_arg
!= '!')
7172 ok
= used_arg (this_arg
, p
- this_arg
);
7187 p
= multilib_select
;
7190 /* Ignore newlines. */
7197 /* Get the initial path. */
7205 this_path_len
= p
- this_path
;
7207 /* Check the arguments. */
7223 while (*p
!= ' ' && *p
!= ';')
7230 if (*this_arg
!= '!')
7238 /* If this is a default argument, we can just ignore it.
7239 This is true even if this_arg begins with '!'. Beginning
7240 with '!' does not mean that this argument is necessarily
7241 inappropriate for this library: it merely means that
7242 there is a more specific library which uses this
7243 argument. If this argument is a default, we need not
7244 consider that more specific library. */
7245 ok
= used_arg (this_arg
, p
- this_arg
);
7252 if (default_arg (this_arg
, p
- this_arg
))
7261 if (this_path_len
!= 1
7262 || this_path
[0] != '.')
7264 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7267 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7268 new_multilib_dir
[this_path_len
] = '\0';
7269 q
= strchr (new_multilib_dir
, ':');
7272 multilib_dir
= new_multilib_dir
;
7279 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7281 while (q
< end
&& *q
!= ':')
7285 char *new_multilib_os_dir
= xmalloc (end
- q
);
7286 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7287 new_multilib_os_dir
[end
- q
- 1] = '\0';
7288 multilib_os_dir
= new_multilib_os_dir
;
7296 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7297 && strcmp (multilib_os_dir
, ".") == 0)
7299 free ((char *) multilib_os_dir
);
7300 multilib_os_dir
= NULL
;
7302 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7303 multilib_os_dir
= multilib_dir
;
7306 /* Print out the multiple library subdirectory selection
7307 information. This prints out a series of lines. Each line looks
7308 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7309 required. Only the desired options are printed out, the negative
7310 matches. The options are print without a leading dash. There are
7311 no spaces to make it easy to use the information in the shell.
7312 Each subdirectory is printed only once. This assumes the ordering
7313 generated by the genmultilib script. Also, we leave out ones that match
7317 print_multilib_info ()
7319 const char *p
= multilib_select
;
7320 const char *last_path
= 0, *this_path
;
7322 unsigned int last_path_len
= 0;
7327 /* Ignore newlines. */
7334 /* Get the initial path. */
7343 /* When --disable-multilib was used but target defines
7344 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7345 to find multilib_os_dir, so skip them from output. */
7346 if (this_path
[0] == '.' && this_path
[1] == ':')
7349 /* Check for matches with the multilib_exclusions. We don't bother
7350 with the '!' in either list. If any of the exclusion rules match
7351 all of its options with the select rule, we skip it. */
7353 const char *e
= multilib_exclusions
;
7354 const char *this_arg
;
7359 /* Ignore newlines. */
7366 /* Check the arguments. */
7383 while (*e
!= ' ' && *e
!= ';')
7394 int len
= e
- this_arg
;
7401 while (*q
!= ' ' && *q
!= ';')
7408 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7409 default_arg (this_arg
, e
- this_arg
))
7439 /* If this is a duplicate, skip it. */
7440 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7441 && ! strncmp (last_path
, this_path
, last_path_len
));
7443 last_path
= this_path
;
7444 last_path_len
= p
- this_path
;
7447 /* If this directory requires any default arguments, we can skip
7448 it. We will already have printed a directory identical to
7449 this one which does not require that default argument. */
7467 while (*q
!= ' ' && *q
!= ';')
7475 && default_arg (arg
, q
- arg
))
7490 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7509 use_arg
= *p
!= '!';
7514 while (*p
!= ' ' && *p
!= ';')
7529 /* If there are extra options, print them now. */
7530 if (multilib_extra
&& *multilib_extra
)
7532 int print_at
= TRUE
;
7535 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7556 /* if-exists built-in spec function.
7558 Checks to see if the file specified by the absolute pathname in
7559 ARGS exists. Returns that pathname if found.
7561 The usual use for this function is to check for a library file
7562 (whose name has been expanded with %s). */
7565 if_exists_spec_function (argc
, argv
)
7569 /* Must have only one argument. */
7570 if (argc
== 1 && IS_ABSOLUTE_PATHNAME (argv
[0]) && ! access (argv
[0], R_OK
))
7576 /* if-exists-else built-in spec function.
7578 This is like if-exists, but takes an additional argument which
7579 is returned if the first argument does not exist. */
7582 if_exists_else_spec_function (argc
, argv
)
7586 /* Must have exactly two arguments. */
7590 if (IS_ABSOLUTE_PATHNAME (argv
[0]) && ! access (argv
[0], R_OK
))