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 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 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
207 /* Nonzero means pass the updated target_system_root to the compiler. */
209 static int target_system_root_changed
;
211 /* Nonzero means write "temp" files in source directory
212 and use the source file's name in them, and don't delete them. */
214 static int save_temps_flag
;
216 /* Nonzero means use pipes to communicate between subprocesses.
217 Overridden by either of the above two flags. */
219 static int use_pipes
;
221 /* The compiler version. */
223 static const char *compiler_version
;
225 /* The target version specified with -V */
227 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
229 /* The target machine specified with -b. */
231 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
233 /* Nonzero if cross-compiling.
234 When -b is used, the value comes from the `specs' file. */
237 static const char *cross_compile
= "1";
239 static const char *cross_compile
= "0";
242 #ifdef MODIFY_TARGET_NAME
244 /* Information on how to alter the target name based on a command-line
245 switch. The only case we support now is simply appending or deleting a
246 string to or from the end of the first part of the configuration name. */
248 static const struct modify_target
250 const char *const sw
;
251 const enum add_del
{ADD
, DELETE
} add_del
;
252 const char *const str
;
254 modify_target
[] = MODIFY_TARGET_NAME
;
257 /* The number of errors that have occurred; the link phase will not be
258 run if this is nonzero. */
259 static int error_count
= 0;
261 /* Greatest exit code of sub-processes that has been encountered up to
263 static int greatest_status
= 1;
265 /* This is the obstack which we use to allocate many strings. */
267 static struct obstack obstack
;
269 /* This is the obstack to build an environment variable to pass to
270 collect2 that describes all of the relevant switches of what to
271 pass the compiler in building the list of pointers to constructors
274 static struct obstack collect_obstack
;
276 /* These structs are used to collect resource usage information for
278 #ifdef HAVE_GETRUSAGE
279 static struct rusage rus
, prus
;
282 /* Forward declaration for prototypes. */
285 static void init_spec
PARAMS ((void));
286 static void store_arg
PARAMS ((const char *, int, int));
287 static char *load_specs
PARAMS ((const char *));
288 static void read_specs
PARAMS ((const char *, int));
289 static void set_spec
PARAMS ((const char *, const char *));
290 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
291 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
292 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
293 static int access_check
PARAMS ((const char *, int));
294 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *,
296 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
297 const char *, int, int, int *, int));
298 static void add_sysrooted_prefix
PARAMS ((struct path_prefix
*, const char *,
299 const char *, int, int, int *, int));
300 static void translate_options
PARAMS ((int *, const char *const **));
301 static char *skip_whitespace
PARAMS ((char *));
302 static void delete_if_ordinary
PARAMS ((const char *));
303 static void delete_temp_files
PARAMS ((void));
304 static void delete_failure_queue
PARAMS ((void));
305 static void clear_failure_queue
PARAMS ((void));
306 static int check_live_switch
PARAMS ((int, int));
307 static const char *handle_braces
PARAMS ((const char *));
308 static inline bool input_suffix_matches
PARAMS ((const char *,
310 static inline bool switch_matches
PARAMS ((const char *,
312 static inline void mark_matching_switches
PARAMS ((const char *,
314 static inline void process_marked_switches
PARAMS ((void));
315 static const char *process_brace_body
PARAMS ((const char *, const char *,
316 const char *, int, int));
317 static const struct spec_function
*lookup_spec_function
PARAMS ((const char *));
318 static const char *eval_spec_function
PARAMS ((const char *, const char *));
319 static const char *handle_spec_function
PARAMS ((const char *));
320 static char *save_string
PARAMS ((const char *, int));
321 static void set_collect_gcc_options
PARAMS ((void));
322 static int do_spec_1
PARAMS ((const char *, int, const char *));
323 static int do_spec_2
PARAMS ((const char *));
324 static void do_self_spec
PARAMS ((const char *));
325 static const char *find_file
PARAMS ((const char *));
326 static int is_directory
PARAMS ((const char *, const char *, int));
327 static const char *validate_switches
PARAMS ((const char *));
328 static void validate_all_switches
PARAMS ((void));
329 static inline void validate_switches_from_spec
PARAMS ((const char *));
330 static void give_switch
PARAMS ((int, int));
331 static int used_arg
PARAMS ((const char *, int));
332 static int default_arg
PARAMS ((const char *, int));
333 static void set_multilib_dir
PARAMS ((void));
334 static void print_multilib_info
PARAMS ((void));
335 static void perror_with_name
PARAMS ((const char *));
336 static void pfatal_pexecute
PARAMS ((const char *, const char *))
338 static void notice
PARAMS ((const char *, ...))
340 static void display_help
PARAMS ((void));
341 static void add_preprocessor_option
PARAMS ((const char *, int));
342 static void add_assembler_option
PARAMS ((const char *, int));
343 static void add_linker_option
PARAMS ((const char *, int));
344 static void process_command
PARAMS ((int, const char *const *));
345 static int execute
PARAMS ((void));
346 static void alloc_args
PARAMS ((void));
347 static void clear_args
PARAMS ((void));
348 static void fatal_error
PARAMS ((int));
349 #ifdef ENABLE_SHARED_LIBGCC
350 static void init_gcc_specs
PARAMS ((struct obstack
*,
351 const char *, const char *,
354 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
355 static const char *convert_filename
PARAMS ((const char *, int, int));
358 static const char *if_exists_spec_function
PARAMS ((int, const char **));
359 static const char *if_exists_else_spec_function
PARAMS ((int, const char **));
361 /* The Specs Language
363 Specs are strings containing lines, each of which (if not blank)
364 is made up of a program name, and arguments separated by spaces.
365 The program name must be exact and start from root, since no path
366 is searched and it is unreliable to depend on the current working directory.
367 Redirection of input or output is not supported; the subprograms must
368 accept filenames saying what files to read and write.
370 In addition, the specs can contain %-sequences to substitute variable text
371 or for conditional text. Here is a table of all defined %-sequences.
372 Note that spaces are not generated automatically around the results of
373 expanding these sequences; therefore, you can concatenate them together
374 or with constant text in a single argument.
376 %% substitute one % into the program name or argument.
377 %i substitute the name of the input file being processed.
378 %b substitute the basename of the input file being processed.
379 This is the substring up to (and not including) the last period
380 and not including the directory.
381 %B same as %b, but include the file suffix (text after the last period).
383 substitute a file name that has suffix SUFFIX and is chosen
384 once per compilation, and mark the argument a la %d. To reduce
385 exposure to denial-of-service attacks, the file name is now
386 chosen in a way that is hard to predict even when previously
387 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
388 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
389 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
390 had been pre-processed. Previously, %g was simply substituted
391 with a file name chosen once per compilation, without regard
392 to any appended suffix (which was therefore treated just like
393 ordinary text), making such attacks more likely to succeed.
395 like %g, but if -pipe is in effect, expands simply to "-".
397 like %g, but if -pipe is in effect, expands to nothing. (We have both
398 %| and %m to accommodate differences between system assemblers; see
399 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
401 like %g, but generates a new temporary file name even if %uSUFFIX
404 substitutes the last file name generated with %uSUFFIX, generating a
405 new one if there is no such last file name. In the absence of any
406 %uSUFFIX, this is just like %gSUFFIX, except they don't share
407 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
408 would involve the generation of two distinct file names, one
409 for each `%g.s' and another for each `%U.s'. Previously, %U was
410 simply substituted with a file name chosen for the previous %u,
411 without regard to any appended suffix.
413 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
414 writable, and if save-temps is off; otherwise, substitute the name
415 of a temporary file, just like %u. This temporary file is not
416 meant for communication between processes, but rather as a junk
419 substitutes .SUFFIX for the suffixes of a matched switch's args when
420 it is subsequently output with %*. SUFFIX is terminated by the next
422 %d marks the argument containing or following the %d as a
423 temporary file name, so that that file will be deleted if CC exits
424 successfully. Unlike %g, this contributes no text to the argument.
425 %w marks the argument containing or following the %w as the
426 "output file" of this compilation. This puts the argument
427 into the sequence of arguments that %o will substitute later.
428 %V indicates that this compilation produces no "output file".
430 like %{...} but mark last argument supplied within
431 as a file to be deleted on failure.
432 %o substitutes the names of all the output files, with spaces
433 automatically placed around them. You should write spaces
434 around the %o as well or the results are undefined.
435 %o is for use in the specs for running the linker.
436 Input files whose names have no recognized suffix are not compiled
437 at all, but they are included among the output files, so they will
439 %O substitutes the suffix for object files. Note that this is
440 handled specially when it immediately follows %g, %u, or %U
441 (with or without a suffix argument) because of the need for
442 those to form complete file names. The handling is such that
443 %O is treated exactly as if it had already been substituted,
444 except that %g, %u, and %U do not currently support additional
445 SUFFIX characters following %O as they would following, for
447 %p substitutes the standard macro predefinitions for the
448 current target machine. Use this when running cpp.
449 %P like %p, but puts `__' before and after the name of each macro.
450 (Except macros that already have __.)
452 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
453 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
454 and -B options) as necessary.
455 %s current argument is the name of a library or startup file of some sort.
456 Search for that file in a standard list of directories
457 and substitute the full name found.
458 %eSTR Print STR as an error message. STR is terminated by a newline.
459 Use this when inconsistent options are detected.
460 %nSTR Print STR as a notice. STR is terminated by a newline.
461 %x{OPTION} Accumulate an option for %X.
462 %X Output the accumulated linker options specified by compilations.
463 %Y Output the accumulated assembler options specified by compilations.
464 %Z Output the accumulated preprocessor options specified by compilations.
465 %v1 Substitute the major version number of GCC.
466 (For version 2.5.3, this is 2.)
467 %v2 Substitute the minor version number of GCC.
468 (For version 2.5.3, this is 5.)
469 %v3 Substitute the patch level number of GCC.
470 (For version 2.5.3, this is 3.)
471 %a process ASM_SPEC as a spec.
472 This allows config.h to specify part of the spec for running as.
473 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
474 used here. This can be used to run a post-processor after the
475 assembler has done its job.
476 %D Dump out a -L option for each directory in startfile_prefixes.
477 If multilib_dir is set, extra entries are generated with it affixed.
478 %l process LINK_SPEC as a spec.
479 %L process LIB_SPEC as a spec.
480 %G process LIBGCC_SPEC as a spec.
481 %M output multilib_dir with directory separators replaced with "_";
482 if multilib_dir is not set or is ".", output "".
483 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
484 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
485 %C process CPP_SPEC as a spec.
486 %1 process CC1_SPEC as a spec.
487 %2 process CC1PLUS_SPEC as a spec.
488 %* substitute the variable part of a matched option. (See below.)
489 Note that each comma in the substituted string is replaced by
491 %<S remove all occurrences of -S from the command line.
492 Note - this command is position dependent. % commands in the
493 spec string before this one will see -S, % commands in the
494 spec string after this one will not.
495 %<S* remove all occurrences of all switches beginning with -S from the
498 Call the named function FUNCTION, passing it ARGS. ARGS is
499 first processed as a nested spec string, then split into an
500 argument vector in the usual fashion. The function returns
501 a string which is processed as if it had appeared literally
502 as part of the current spec.
503 %{S} substitutes the -S switch, if that switch was given to CC.
504 If that switch was not specified, this substitutes nothing.
505 Here S is a metasyntactic variable.
506 %{S*} substitutes all the switches specified to CC whose names start
507 with -S. This is used for -o, -I, etc; switches that take
508 arguments. CC considers `-o foo' as being one switch whose
509 name starts with `o'. %{o*} would substitute this text,
510 including the space; thus, two arguments would be generated.
511 %{S*&T*} likewise, but preserve order of S and T options (the order
512 of S and T in the spec is not significant). Can be any number
513 of ampersand-separated variables; for each the wild card is
514 optional. Useful for CPP as %{D*&U*&A*}.
516 %{S:X} substitutes X, if the -S switch was given to CC.
517 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
518 %{S*:X} substitutes X if one or more switches whose names start
519 with -S was given to CC. Normally X is substituted only
520 once, no matter how many such switches appeared. However,
521 if %* appears somewhere in X, then X will be substituted
522 once for each matching switch, with the %* replaced by the
523 part of that switch that matched the '*'.
524 %{.S:X} substitutes X, if processing a file with suffix S.
525 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
527 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
528 combined with !, ., and * as above binding stronger than the OR.
529 If %* appears in X, all of the alternatives must be starred, and
530 only the first matching alternative is substituted.
531 %{S:X; if S was given to CC, substitutes X;
532 T:Y; else if T was given to CC, substitutes Y;
533 :D} else substitutes D. There can be as many clauses as you need.
534 This may be combined with ., !, |, and * as above.
536 %(Spec) processes a specification defined in a specs file as *Spec:
537 %[Spec] as above, but put __ around -D arguments
539 The conditional text X in a %{S:X} or similar construct may contain
540 other nested % constructs or spaces, or even newlines. They are
541 processed as usual, as described above. Trailing white space in X is
542 ignored. White space may also appear anywhere on the left side of the
543 colon in these constructs, except between . or * and the corresponding
546 The -O, -f, -m, and -W switches are handled specifically in these
547 constructs. If another value of -O or the negated form of a -f, -m, or
548 -W switch is found later in the command line, the earlier switch
549 value is ignored, except with {S*} where S is just one letter; this
550 passes all matching options.
552 The character | at the beginning of the predicate text is used to indicate
553 that a command should be piped to the following command, but only if -pipe
556 Note that it is built into CC which switches take arguments and which
557 do not. You might think it would be useful to generalize this to
558 allow each compiler's spec to say which switches take arguments. But
559 this cannot be done in a consistent fashion. CC cannot even decide
560 which input files have been specified without knowing which switches
561 take arguments, and it must know which input files to compile in order
562 to tell which compilers to run.
564 CC also knows implicitly that arguments starting in `-l' are to be
565 treated as compiler output files, and passed to the linker in their
566 proper position among the other output files. */
568 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
570 /* config.h can define ASM_SPEC to provide extra args to the assembler
571 or extra switch-translations. */
576 /* config.h can define ASM_FINAL_SPEC to run a post processor after
577 the assembler has run. */
578 #ifndef ASM_FINAL_SPEC
579 #define ASM_FINAL_SPEC ""
582 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
583 or extra switch-translations. */
588 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
589 or extra switch-translations. */
594 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
595 or extra switch-translations. */
597 #define CC1PLUS_SPEC ""
600 /* config.h can define LINK_SPEC to provide extra args to the linker
601 or extra switch-translations. */
606 /* config.h can define LIB_SPEC to override the default libraries. */
608 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
611 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
614 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
615 /* Have gcc do the search for libgcc.a. */
616 #define LIBGCC_SPEC "libgcc.a%s"
618 #define LIBGCC_SPEC "-lgcc"
622 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
623 #ifndef STARTFILE_SPEC
624 #define STARTFILE_SPEC \
625 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
628 /* config.h can define SWITCHES_NEED_SPACES to control which options
629 require spaces between the option and the argument. */
630 #ifndef SWITCHES_NEED_SPACES
631 #define SWITCHES_NEED_SPACES ""
634 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
636 #define ENDFILE_SPEC ""
640 #define LINKER_NAME "collect2"
643 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
645 #ifndef ASM_DEBUG_SPEC
646 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
647 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
648 # define ASM_DEBUG_SPEC \
649 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
650 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
651 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
653 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
654 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
656 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
657 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
661 #ifndef ASM_DEBUG_SPEC
662 # define ASM_DEBUG_SPEC ""
665 /* Here is the spec for running the linker, after compiling all files. */
667 /* This is overridable by the target in case they need to specify the
668 -lgcc and -lc order specially, yet not require them to override all
669 of LINK_COMMAND_SPEC. */
670 #ifndef LINK_GCC_C_SEQUENCE_SPEC
671 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
674 /* -u* was put back because both BSD and SysV seem to support it. */
675 /* %{static:} simply prevents an error message if the target machine
676 doesn't handle -static. */
677 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
678 scripts which exist in user specified directories, or in standard
680 #ifndef LINK_COMMAND_SPEC
681 #define LINK_COMMAND_SPEC "\
682 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
683 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
684 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
685 %{static:} %{L*} %(link_libgcc) %o %{fprofile-arcs:-lgcov}\
686 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
687 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
690 #ifndef LINK_LIBGCC_SPEC
691 # ifdef LINK_LIBGCC_SPECIAL
692 /* Don't generate -L options for startfile prefix list. */
693 # define LINK_LIBGCC_SPEC ""
695 /* Do generate them. */
696 # define LINK_LIBGCC_SPEC "%D"
700 #ifndef STARTFILE_PREFIX_SPEC
701 # define STARTFILE_PREFIX_SPEC ""
704 static const char *asm_debug
;
705 static const char *cpp_spec
= CPP_SPEC
;
706 static const char *cpp_predefines
= CPP_PREDEFINES
;
707 static const char *cc1_spec
= CC1_SPEC
;
708 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
709 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
710 static const char *asm_spec
= ASM_SPEC
;
711 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
712 static const char *link_spec
= LINK_SPEC
;
713 static const char *lib_spec
= LIB_SPEC
;
714 static const char *libgcc_spec
= LIBGCC_SPEC
;
715 static const char *endfile_spec
= ENDFILE_SPEC
;
716 static const char *startfile_spec
= STARTFILE_SPEC
;
717 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
718 static const char *linker_name_spec
= LINKER_NAME
;
719 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
720 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
721 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
723 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
724 There should be no need to override these in target dependent files,
725 but we need to copy them to the specs file so that newer versions
726 of the GCC driver can correctly drive older tool chains with the
727 appropriate -B options. */
729 /* When cpplib handles traditional preprocessing, get rid of this, and
730 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
731 that we default the front end language better. */
732 static const char *trad_capable_cpp
=
733 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
735 /* We don't wrap .d files in %W{} since a missing .d file, and
736 therefore no dependency entry, confuses make into thinking a .o
737 file that happens to exist is up-to-date. */
738 static const char *cpp_unique_options
=
739 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
740 %{CC:%{!E:%eGNU C does not support -CC without using -E}}\
741 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %I\
742 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
743 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
744 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
745 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
746 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
747 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
748 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
751 /* This contains cpp options which are common with cc1_options and are passed
752 only when preprocessing only to avoid duplication. We pass the cc1 spec
753 options to the preprocessor so that it the cc1 spec may manipulate
754 options used to set target flags. Those special target flags settings may
755 in turn cause preprocessor symbols to be defined specially. */
756 static const char *cpp_options
=
757 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
760 /* This contains cpp options which are not passed when the preprocessor
761 output will be used by another program. */
762 static const char *cpp_debug_options
= "%{d*}";
764 /* NB: This is shared amongst all front-ends. */
765 static const char *cc1_options
=
766 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
767 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
768 -auxbase%{c|S:%{o*:-strip %*}%{!o*: %b}}%{!c:%{!S: %b}}\
769 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
770 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
771 %{Qn:-fno-ident} %{--help:--help}\
772 %{--target-help:--target-help}\
773 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
774 %{fsyntax-only:-o %j} %{-param*}";
776 static const char *asm_options
=
777 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
779 static const char *invoke_as
=
780 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
781 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
783 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
786 /* Some compilers have limits on line lengths, and the multilib_select
787 and/or multilib_matches strings can be very long, so we build them at
789 static struct obstack multilib_obstack
;
790 static const char *multilib_select
;
791 static const char *multilib_matches
;
792 static const char *multilib_defaults
;
793 static const char *multilib_exclusions
;
794 #include "multilib.h"
796 /* Check whether a particular argument is a default argument. */
798 #ifndef MULTILIB_DEFAULTS
799 #define MULTILIB_DEFAULTS { "" }
802 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
804 #ifndef DRIVER_SELF_SPECS
805 #define DRIVER_SELF_SPECS ""
808 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
812 struct user_specs
*next
;
813 const char *filename
;
816 static struct user_specs
*user_specs_head
, *user_specs_tail
;
818 /* This defines which switch letters take arguments. */
820 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
821 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
822 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
823 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
824 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'B' || (CHAR) == 'b')
826 #ifndef SWITCH_TAKES_ARG
827 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
830 /* This defines which multi-letter switches take arguments. */
832 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
833 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
834 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
835 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
836 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
837 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
838 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
839 || !strcmp (STR, "specs") \
840 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
842 #ifndef WORD_SWITCH_TAKES_ARG
843 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
846 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
847 /* This defines which switches stop a full compilation. */
848 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
849 ((CHAR) == 'c' || (CHAR) == 'S')
851 #ifndef SWITCH_CURTAILS_COMPILATION
852 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
853 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
857 /* Record the mapping from file suffixes for compilation specs. */
861 const char *suffix
; /* Use this compiler for input files
862 whose names end in this suffix. */
864 const char *spec
; /* To use this compiler, run this spec. */
866 const char *cpp_spec
; /* If non-NULL, substitute this spec
867 for `%C', rather than the usual
871 /* Pointer to a vector of `struct compiler' that gives the spec for
872 compiling a file, based on its suffix.
873 A file that does not end in any of these suffixes will be passed
874 unchanged to the loader and nothing else will be done to it.
876 An entry containing two 0s is used to terminate the vector.
878 If multiple entries match a file, the last matching one is used. */
880 static struct compiler
*compilers
;
882 /* Number of entries in `compilers', not counting the null terminator. */
884 static int n_compilers
;
886 /* The default list of file name suffixes and their compilation specs. */
888 static const struct compiler default_compilers
[] =
890 /* Add lists of suffixes of known languages here. If those languages
891 were not present when we built the driver, we will hit these copies
892 and be given a more meaningful error than "file not used since
893 linking is not done". */
894 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
895 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
896 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
897 {".CPP", "#C++", 0}, {".ii", "#C++", 0},
898 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
899 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
900 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
901 {".r", "#Ratfor", 0},
902 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
903 {".java", "#Java", 0}, {".class", "#Java", 0},
904 {".zip", "#Java", 0}, {".jar", "#Java", 0},
905 /* Next come the entries for C. */
908 /* cc1 has an integrated ISO C preprocessor. We should invoke the
909 external preprocessor if -save-temps is given. */
910 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
912 %{traditional|ftraditional:\
913 %eGNU C no longer supports -traditional without -E}\
914 %{save-temps|traditional-cpp:%(trad_capable_cpp) \
915 %(cpp_options) %b.i \n\
916 cc1 -fpreprocessed %b.i %(cc1_options)}\
917 %{!save-temps:%{!traditional-cpp:\
918 cc1 %(cpp_unique_options) %(cc1_options)}}\
919 %{!fsyntax-only:%(invoke_as)}}}}", 0},
921 "%{!E:%e-E required when input is from standard input}\
922 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0},
923 {".h", "@c-header", 0},
925 /* cc1 has an integrated ISO C preprocessor. We should invoke the
926 external preprocessor if -save-temps is given. */
927 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
929 %{save-temps|traditional-cpp:%(trad_capable_cpp) \
930 %(cpp_options) %b.i \n\
931 cc1 -fpreprocessed %b.i %(cc1_options)\
932 -o %g.s %{!o*:--output-pch=%i.pch}\
933 %W{o*:--output-pch=%*}%V}\
934 %{!save-temps:%{!traditional-cpp:\
935 cc1 %(cpp_unique_options) %(cc1_options)\
936 -o %g.s %{!o*:--output-pch=%i.pch}\
937 %W{o*:--output-pch=%*}%V}}}}}", 0},
938 {".i", "@cpp-output", 0},
940 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
941 {".s", "@assembler", 0},
943 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
944 {".S", "@assembler-with-cpp", 0},
945 {"@assembler-with-cpp",
946 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
947 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
948 %{E|M|MM:%(cpp_debug_options)}\
949 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
950 as %(asm_debug) %(asm_options) %|.s %A }}}}"
952 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
953 %{E|M|MM:%(cpp_debug_options)}\
954 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
955 as %(asm_debug) %(asm_options) %m.s %A }}}}"
960 /* Mark end of table */
964 /* Number of elements in default_compilers, not counting the terminator. */
966 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
968 /* A vector of options to give to the linker.
969 These options are accumulated by %x,
970 and substituted into the linker command with %X. */
971 static int n_linker_options
;
972 static char **linker_options
;
974 /* A vector of options to give to the assembler.
975 These options are accumulated by -Wa,
976 and substituted into the assembler command with %Y. */
977 static int n_assembler_options
;
978 static char **assembler_options
;
980 /* A vector of options to give to the preprocessor.
981 These options are accumulated by -Wp,
982 and substituted into the preprocessor command with %Z. */
983 static int n_preprocessor_options
;
984 static char **preprocessor_options
;
986 /* Define how to map long options into short ones. */
988 /* This structure describes one mapping. */
991 /* The long option's name. */
992 const char *const name
;
993 /* The equivalent short option. */
994 const char *const equivalent
;
995 /* Argument info. A string of flag chars; NULL equals no options.
996 a => argument required.
997 o => argument optional.
998 j => join argument to equivalent, making one word.
999 * => require other text after NAME as an argument. */
1000 const char *const arg_info
;
1003 /* This is the table of mappings. Mappings are tried sequentially
1004 for each option encountered; the first one that matches, wins. */
1006 static const struct option_map option_map
[] =
1008 {"--all-warnings", "-Wall", 0},
1009 {"--ansi", "-ansi", 0},
1010 {"--assemble", "-S", 0},
1011 {"--assert", "-A", "a"},
1012 {"--classpath", "-fclasspath=", "aj"},
1013 {"--bootclasspath", "-fbootclasspath=", "aj"},
1014 {"--CLASSPATH", "-fclasspath=", "aj"},
1015 {"--comments", "-C", 0},
1016 {"--comments-in-macros", "-CC", 0},
1017 {"--compile", "-c", 0},
1018 {"--debug", "-g", "oj"},
1019 {"--define-macro", "-D", "aj"},
1020 {"--dependencies", "-M", 0},
1021 {"--dump", "-d", "a"},
1022 {"--dumpbase", "-dumpbase", "a"},
1023 {"--entry", "-e", 0},
1024 {"--extra-warnings", "-W", 0},
1025 {"--for-assembler", "-Wa", "a"},
1026 {"--for-linker", "-Xlinker", "a"},
1027 {"--force-link", "-u", "a"},
1028 {"--imacros", "-imacros", "a"},
1029 {"--include", "-include", "a"},
1030 {"--include-barrier", "-I-", 0},
1031 {"--include-directory", "-I", "aj"},
1032 {"--include-directory-after", "-idirafter", "a"},
1033 {"--include-prefix", "-iprefix", "a"},
1034 {"--include-with-prefix", "-iwithprefix", "a"},
1035 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1036 {"--include-with-prefix-after", "-iwithprefix", "a"},
1037 {"--language", "-x", "a"},
1038 {"--library-directory", "-L", "a"},
1039 {"--machine", "-m", "aj"},
1040 {"--machine-", "-m", "*j"},
1041 {"--no-line-commands", "-P", 0},
1042 {"--no-precompiled-includes", "-noprecomp", 0},
1043 {"--no-standard-includes", "-nostdinc", 0},
1044 {"--no-standard-libraries", "-nostdlib", 0},
1045 {"--no-warnings", "-w", 0},
1046 {"--optimize", "-O", "oj"},
1047 {"--output", "-o", "a"},
1048 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1049 {"--param", "--param", "a"},
1050 {"--pedantic", "-pedantic", 0},
1051 {"--pedantic-errors", "-pedantic-errors", 0},
1052 {"--pipe", "-pipe", 0},
1053 {"--prefix", "-B", "a"},
1054 {"--preprocess", "-E", 0},
1055 {"--print-search-dirs", "-print-search-dirs", 0},
1056 {"--print-file-name", "-print-file-name=", "aj"},
1057 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1058 {"--print-missing-file-dependencies", "-MG", 0},
1059 {"--print-multi-lib", "-print-multi-lib", 0},
1060 {"--print-multi-directory", "-print-multi-directory", 0},
1061 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1062 {"--print-prog-name", "-print-prog-name=", "aj"},
1063 {"--profile", "-p", 0},
1064 {"--profile-blocks", "-a", 0},
1065 {"--quiet", "-q", 0},
1066 {"--resource", "-fcompile-resource=", "aj"},
1067 {"--save-temps", "-save-temps", 0},
1068 {"--shared", "-shared", 0},
1069 {"--silent", "-q", 0},
1070 {"--specs", "-specs=", "aj"},
1071 {"--static", "-static", 0},
1072 {"--std", "-std=", "aj"},
1073 {"--symbolic", "-symbolic", 0},
1074 {"--target", "-b", "a"},
1075 {"--time", "-time", 0},
1076 {"--trace-includes", "-H", 0},
1077 {"--traditional", "-traditional", 0},
1078 {"--traditional-cpp", "-traditional-cpp", 0},
1079 {"--trigraphs", "-trigraphs", 0},
1080 {"--undefine-macro", "-U", "aj"},
1081 {"--use-version", "-V", "a"},
1082 {"--user-dependencies", "-MM", 0},
1083 {"--verbose", "-v", 0},
1084 {"--warn-", "-W", "*j"},
1085 {"--write-dependencies", "-MD", 0},
1086 {"--write-user-dependencies", "-MMD", 0},
1091 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1092 static const struct {
1093 const char *const option_found
;
1094 const char *const replacements
;
1095 } target_option_translations
[] =
1097 TARGET_OPTION_TRANSLATE_TABLE
,
1102 /* Translate the options described by *ARGCP and *ARGVP.
1103 Make a new vector and store it back in *ARGVP,
1104 and store its length in *ARGVC. */
1107 translate_options (argcp
, argvp
)
1109 const char *const **argvp
;
1113 const char *const *argv
= *argvp
;
1114 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1116 (const char **) xmalloc (newvsize
);
1120 newv
[newindex
++] = argv
[i
++];
1124 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1128 target_option_translations
[tott_idx
].option_found
;
1131 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1138 for (sp
= target_option_translations
[tott_idx
].replacements
;
1145 newvsize
+= spaces
* sizeof (const char *);
1146 newv
= (const char **) xrealloc (newv
, newvsize
);
1148 sp
= target_option_translations
[tott_idx
].replacements
;
1157 newv
[newindex
++] = np
;
1158 while (*np
!= ' ' && *np
)
1169 if (target_option_translations
[tott_idx
].option_found
)
1173 /* Translate -- options. */
1174 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1177 /* Find a mapping that applies to this option. */
1178 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1180 size_t optlen
= strlen (option_map
[j
].name
);
1181 size_t arglen
= strlen (argv
[i
]);
1182 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1183 const char *arginfo
= option_map
[j
].arg_info
;
1188 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1190 const char *arg
= 0;
1192 if (arglen
< optlen
)
1195 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1196 if (strlen (option_map
[k
].name
) >= arglen
1197 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1199 error ("ambiguous abbreviation %s", argv
[i
]);
1203 if (k
!= ARRAY_SIZE (option_map
))
1207 if (arglen
> optlen
)
1209 /* If the option has an argument, accept that. */
1210 if (argv
[i
][optlen
] == '=')
1211 arg
= argv
[i
] + optlen
+ 1;
1213 /* If this mapping requires extra text at end of name,
1214 accept that as "argument". */
1215 else if (strchr (arginfo
, '*') != 0)
1216 arg
= argv
[i
] + optlen
;
1218 /* Otherwise, extra text at end means mismatch.
1219 Try other mappings. */
1224 else if (strchr (arginfo
, '*') != 0)
1226 error ("incomplete `%s' option", option_map
[j
].name
);
1230 /* Handle arguments. */
1231 if (strchr (arginfo
, 'a') != 0)
1237 error ("missing argument to `%s' option",
1238 option_map
[j
].name
);
1245 else if (strchr (arginfo
, '*') != 0)
1247 else if (strchr (arginfo
, 'o') == 0)
1250 error ("extraneous argument to `%s' option",
1251 option_map
[j
].name
);
1255 /* Store the translation as one argv elt or as two. */
1256 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1257 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1261 newv
[newindex
++] = option_map
[j
].equivalent
;
1262 newv
[newindex
++] = arg
;
1265 newv
[newindex
++] = option_map
[j
].equivalent
;
1273 /* Handle old-fashioned options--just copy them through,
1274 with their arguments. */
1275 else if (argv
[i
][0] == '-')
1277 const char *p
= argv
[i
] + 1;
1281 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1282 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1283 else if (WORD_SWITCH_TAKES_ARG (p
))
1284 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1285 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1288 else if (! strcmp (p
, "Xlinker"))
1290 else if (! strcmp (p
, "Xpreprocessor"))
1292 else if (! strcmp (p
, "Xassembler"))
1295 /* Watch out for an option at the end of the command line that
1296 is missing arguments, and avoid skipping past the end of the
1298 if (nskip
+ i
> argc
)
1303 newv
[newindex
++] = argv
[i
++];
1308 /* Ordinary operands, or +e options. */
1309 newv
[newindex
++] = argv
[i
++];
1324 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1325 be considered whitespace. */
1326 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1328 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1342 /* Structures to keep track of prefixes to try when looking for files. */
1346 const char *prefix
; /* String to prepend to the path. */
1347 struct prefix_list
*next
; /* Next in linked list. */
1348 int require_machine_suffix
; /* Don't use without machine_suffix. */
1349 /* 2 means try both machine_suffix and just_machine_suffix. */
1350 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1351 int priority
; /* Sort key - priority within list. */
1352 int os_multilib
; /* 1 if OS multilib scheme should be used,
1353 0 for GCC multilib scheme. */
1358 struct prefix_list
*plist
; /* List of prefixes to try */
1359 int max_len
; /* Max length of a prefix in PLIST */
1360 const char *name
; /* Name of this list (used in config stuff) */
1363 /* List of prefixes to try when looking for executables. */
1365 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1367 /* List of prefixes to try when looking for startup (crt0) files. */
1369 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1371 /* List of prefixes to try when looking for include files. */
1373 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1375 /* Suffix to attach to directories searched for commands.
1376 This looks like `MACHINE/VERSION/'. */
1378 static const char *machine_suffix
= 0;
1380 /* Suffix to attach to directories searched for commands.
1381 This is just `MACHINE/'. */
1383 static const char *just_machine_suffix
= 0;
1385 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1387 static const char *gcc_exec_prefix
;
1389 /* Default prefixes to attach to command names. */
1391 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1392 #undef MD_EXEC_PREFIX
1393 #undef MD_STARTFILE_PREFIX
1394 #undef MD_STARTFILE_PREFIX_1
1397 /* If no prefixes defined, use the null string, which will disable them. */
1398 #ifndef MD_EXEC_PREFIX
1399 #define MD_EXEC_PREFIX ""
1401 #ifndef MD_STARTFILE_PREFIX
1402 #define MD_STARTFILE_PREFIX ""
1404 #ifndef MD_STARTFILE_PREFIX_1
1405 #define MD_STARTFILE_PREFIX_1 ""
1408 /* Supply defaults for the standard prefixes. */
1410 #ifndef STANDARD_EXEC_PREFIX
1411 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1413 #ifndef STANDARD_STARTFILE_PREFIX
1414 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1416 #ifndef TOOLDIR_BASE_PREFIX
1417 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1419 #ifndef STANDARD_BINDIR_PREFIX
1420 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1423 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1424 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1425 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1427 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1428 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1429 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1430 static const char *const standard_startfile_prefix_1
= "/lib/";
1431 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1433 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1434 static const char *tooldir_prefix
;
1436 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1438 /* Subdirectory to use for locating libraries. Set by
1439 set_multilib_dir based on the compilation options. */
1441 static const char *multilib_dir
;
1443 /* Subdirectory to use for locating libraries in OS conventions. Set by
1444 set_multilib_dir based on the compilation options. */
1446 static const char *multilib_os_dir
;
1448 /* Structure to keep track of the specs that have been defined so far.
1449 These are accessed using %(specname) or %[specname] in a compiler
1454 /* The following 2 fields must be first */
1455 /* to allow EXTRA_SPECS to be initialized */
1456 const char *name
; /* name of the spec. */
1457 const char *ptr
; /* available ptr if no static pointer */
1459 /* The following fields are not initialized */
1460 /* by EXTRA_SPECS */
1461 const char **ptr_spec
; /* pointer to the spec itself. */
1462 struct spec_list
*next
; /* Next spec in linked list. */
1463 int name_len
; /* length of the name */
1464 int alloc_p
; /* whether string was allocated */
1467 #define INIT_STATIC_SPEC(NAME,PTR) \
1468 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1470 /* List of statically defined specs. */
1471 static struct spec_list static_specs
[] =
1473 INIT_STATIC_SPEC ("asm", &asm_spec
),
1474 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1475 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1476 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1477 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1478 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1479 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1480 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1481 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1482 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1483 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1484 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1485 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1486 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1487 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1488 INIT_STATIC_SPEC ("link", &link_spec
),
1489 INIT_STATIC_SPEC ("lib", &lib_spec
),
1490 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1491 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1492 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1493 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1494 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1495 INIT_STATIC_SPEC ("version", &compiler_version
),
1496 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1497 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1498 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1499 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1500 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1501 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1502 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1503 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1504 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1505 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1506 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1507 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1510 #ifdef EXTRA_SPECS /* additional specs needed */
1511 /* Structure to keep track of just the first two args of a spec_list.
1512 That is all that the EXTRA_SPECS macro gives us. */
1515 const char *const name
;
1516 const char *const ptr
;
1519 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1520 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1523 /* List of dynamically allocates specs that have been defined so far. */
1525 static struct spec_list
*specs
= (struct spec_list
*) 0;
1527 /* List of static spec functions. */
1529 static const struct spec_function static_spec_functions
[] =
1531 { "if-exists", if_exists_spec_function
},
1532 { "if-exists-else", if_exists_else_spec_function
},
1536 static int processing_spec_function
;
1538 /* Add appropriate libgcc specs to OBSTACK, taking into account
1539 various permutations of -shared-libgcc, -shared, and such. */
1541 #ifdef ENABLE_SHARED_LIBGCC
1543 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1544 struct obstack
*obstack
;
1545 const char *shared_name
;
1546 const char *static_name
;
1547 const char *eh_name
;
1551 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1552 "}%{!static:%{!static-libgcc:",
1553 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1554 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1555 static_name
, "}}%{shared:",
1557 "%{shared-libgcc:", shared_name
,
1558 "}%{!shared-libgcc:", static_name
, "}",
1564 obstack_grow (obstack
, buf
, strlen (buf
));
1567 #endif /* ENABLE_SHARED_LIBGCC */
1569 /* Initialize the specs lookup routines. */
1574 struct spec_list
*next
= (struct spec_list
*) 0;
1575 struct spec_list
*sl
= (struct spec_list
*) 0;
1579 return; /* Already initialized. */
1582 notice ("Using built-in specs.\n");
1585 extra_specs
= (struct spec_list
*)
1586 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1588 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1590 sl
= &extra_specs
[i
];
1591 sl
->name
= extra_specs_1
[i
].name
;
1592 sl
->ptr
= extra_specs_1
[i
].ptr
;
1594 sl
->name_len
= strlen (sl
->name
);
1595 sl
->ptr_spec
= &sl
->ptr
;
1600 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1601 on ?: in file-scope variable initializations. */
1602 asm_debug
= ASM_DEBUG_SPEC
;
1604 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1606 sl
= &static_specs
[i
];
1611 #ifdef ENABLE_SHARED_LIBGCC
1612 /* ??? If neither -shared-libgcc nor --static-libgcc was
1613 seen, then we should be making an educated guess. Some proposed
1614 heuristics for ELF include:
1616 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1617 program will be doing dynamic loading, which will likely
1618 need the shared libgcc.
1620 (2) If "-ldl", then it's also a fair bet that we're doing
1623 (3) For each ET_DYN we're linking against (either through -lfoo
1624 or /some/path/foo.so), check to see whether it or one of
1625 its dependencies depends on a shared libgcc.
1629 If the runtime is fixed to look for program headers instead
1630 of calling __register_frame_info at all, for each object,
1631 use the shared libgcc if any EH symbol referenced.
1633 If crtstuff is fixed to not invoke __register_frame_info
1634 automatically, for each object, use the shared libgcc if
1635 any non-empty unwind section found.
1637 Doing any of this probably requires invoking an external program to
1638 do the actual object file scanning. */
1640 const char *p
= libgcc_spec
;
1643 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1644 when given the proper command line arguments. */
1647 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1649 init_gcc_specs (&obstack
,
1650 #ifdef NO_SHARED_LIBGCC_MULTILIB
1655 #ifdef USE_LIBUNWIND_EXCEPTIONS
1664 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1666 /* Ug. We don't know shared library extensions. Hope that
1667 systems that use this form don't do shared libraries. */
1668 init_gcc_specs (&obstack
,
1669 #ifdef NO_SHARED_LIBGCC_MULTILIB
1682 obstack_1grow (&obstack
, *p
);
1683 in_sep
= (*p
== ' ');
1688 obstack_1grow (&obstack
, '\0');
1689 libgcc_spec
= obstack_finish (&obstack
);
1692 #ifdef USE_AS_TRADITIONAL_FORMAT
1693 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1695 static const char tf
[] = "--traditional-format ";
1696 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1697 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1698 asm_spec
= obstack_finish (&obstack
);
1702 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1703 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1704 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1705 link_spec
= obstack_finish (&obstack
);
1711 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1712 removed; If the spec starts with a + then SPEC is added to the end of the
1716 set_spec (name
, spec
)
1720 struct spec_list
*sl
;
1721 const char *old_spec
;
1722 int name_len
= strlen (name
);
1725 /* If this is the first call, initialize the statically allocated specs. */
1728 struct spec_list
*next
= (struct spec_list
*) 0;
1729 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1731 sl
= &static_specs
[i
];
1738 /* See if the spec already exists. */
1739 for (sl
= specs
; sl
; sl
= sl
->next
)
1740 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1745 /* Not found - make it. */
1746 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1747 sl
->name
= xstrdup (name
);
1748 sl
->name_len
= name_len
;
1749 sl
->ptr_spec
= &sl
->ptr
;
1751 *(sl
->ptr_spec
) = "";
1756 old_spec
= *(sl
->ptr_spec
);
1757 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1758 ? concat (old_spec
, spec
+ 1, NULL
)
1763 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1766 /* Free the old spec. */
1767 if (old_spec
&& sl
->alloc_p
)
1768 free ((PTR
) old_spec
);
1773 /* Accumulate a command (program name and args), and run it. */
1775 /* Vector of pointers to arguments in the current line of specifications. */
1777 static const char **argbuf
;
1779 /* Number of elements allocated in argbuf. */
1781 static int argbuf_length
;
1783 /* Number of elements in argbuf currently in use (containing args). */
1785 static int argbuf_index
;
1787 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1788 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1791 static struct temp_name
{
1792 const char *suffix
; /* suffix associated with the code. */
1793 int length
; /* strlen (suffix). */
1794 int unique
; /* Indicates whether %g or %u/%U was used. */
1795 const char *filename
; /* associated filename. */
1796 int filename_length
; /* strlen (filename). */
1797 struct temp_name
*next
;
1800 /* Number of commands executed so far. */
1802 static int execution_count
;
1804 /* Number of commands that exited with a signal. */
1806 static int signal_count
;
1808 /* Name with which this program was invoked. */
1810 static const char *programname
;
1812 /* Allocate the argument vector. */
1818 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
1821 /* Clear out the vector of arguments (after a command is executed). */
1829 /* Add one argument to the vector at the end.
1830 This is done when a space is seen or at the end of the line.
1831 If DELETE_ALWAYS is nonzero, the arg is a filename
1832 and the file should be deleted eventually.
1833 If DELETE_FAILURE is nonzero, the arg is a filename
1834 and the file should be deleted if this compilation fails. */
1837 store_arg (arg
, delete_always
, delete_failure
)
1839 int delete_always
, delete_failure
;
1841 if (argbuf_index
+ 1 == argbuf_length
)
1843 = (const char **) xrealloc (argbuf
,
1844 (argbuf_length
*= 2) * sizeof (const char *));
1846 argbuf
[argbuf_index
++] = arg
;
1847 argbuf
[argbuf_index
] = 0;
1849 if (delete_always
|| delete_failure
)
1850 record_temp_file (arg
, delete_always
, delete_failure
);
1853 /* Load specs from a file name named FILENAME, replacing occurrences of
1854 various different types of line-endings, \r\n, \n\r and just \r, with
1858 load_specs (filename
)
1859 const char *filename
;
1863 struct stat statbuf
;
1870 notice ("Reading specs from %s\n", filename
);
1872 /* Open and stat the file. */
1873 desc
= open (filename
, O_RDONLY
, 0);
1875 pfatal_with_name (filename
);
1876 if (stat (filename
, &statbuf
) < 0)
1877 pfatal_with_name (filename
);
1879 /* Read contents of file into BUFFER. */
1880 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1881 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1883 pfatal_with_name (filename
);
1884 buffer
[readlen
] = 0;
1887 specs
= xmalloc (readlen
+ 1);
1889 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1895 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1897 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1911 /* Read compilation specs from a file named FILENAME,
1912 replacing the default ones.
1914 A suffix which starts with `*' is a definition for
1915 one of the machine-specific sub-specs. The "suffix" should be
1916 *asm, *cc1, *cpp, *link, *startfile, etc.
1917 The corresponding spec is stored in asm_spec, etc.,
1918 rather than in the `compilers' vector.
1920 Anything invalid in the file is a fatal error. */
1923 read_specs (filename
, main_p
)
1924 const char *filename
;
1930 buffer
= load_specs (filename
);
1932 /* Scan BUFFER for specs, putting them in the vector. */
1938 char *in
, *out
, *p1
, *p2
, *p3
;
1940 /* Advance P in BUFFER to the next nonblank nocomment line. */
1941 p
= skip_whitespace (p
);
1945 /* Is this a special command that starts with '%'? */
1946 /* Don't allow this for the main specs file, since it would
1947 encourage people to overwrite it. */
1948 if (*p
== '%' && !main_p
)
1951 while (*p
&& *p
!= '\n')
1957 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1958 && (p1
[sizeof "%include" - 1] == ' '
1959 || p1
[sizeof "%include" - 1] == '\t'))
1963 p1
+= sizeof ("%include");
1964 while (*p1
== ' ' || *p1
== '\t')
1967 if (*p1
++ != '<' || p
[-2] != '>')
1968 fatal ("specs %%include syntax malformed after %ld characters",
1969 (long) (p1
- buffer
+ 1));
1972 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1973 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1976 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1977 && (p1
[sizeof "%include_noerr" - 1] == ' '
1978 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1982 p1
+= sizeof "%include_noerr";
1983 while (*p1
== ' ' || *p1
== '\t')
1986 if (*p1
++ != '<' || p
[-2] != '>')
1987 fatal ("specs %%include syntax malformed after %ld characters",
1988 (long) (p1
- buffer
+ 1));
1991 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1993 read_specs (new_filename
, FALSE
);
1994 else if (verbose_flag
)
1995 notice ("could not find specs file %s\n", p1
);
1998 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1999 && (p1
[sizeof "%rename" - 1] == ' '
2000 || p1
[sizeof "%rename" - 1] == '\t'))
2003 struct spec_list
*sl
;
2004 struct spec_list
*newsl
;
2006 /* Get original name. */
2007 p1
+= sizeof "%rename";
2008 while (*p1
== ' ' || *p1
== '\t')
2011 if (! ISALPHA ((unsigned char) *p1
))
2012 fatal ("specs %%rename syntax malformed after %ld characters",
2013 (long) (p1
- buffer
));
2016 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2019 if (*p2
!= ' ' && *p2
!= '\t')
2020 fatal ("specs %%rename syntax malformed after %ld characters",
2021 (long) (p2
- buffer
));
2025 while (*p2
== ' ' || *p2
== '\t')
2028 if (! ISALPHA ((unsigned char) *p2
))
2029 fatal ("specs %%rename syntax malformed after %ld characters",
2030 (long) (p2
- buffer
));
2032 /* Get new spec name. */
2034 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2038 fatal ("specs %%rename syntax malformed after %ld characters",
2039 (long) (p3
- buffer
));
2042 for (sl
= specs
; sl
; sl
= sl
->next
)
2043 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2047 fatal ("specs %s spec was not found to be renamed", p1
);
2049 if (strcmp (p1
, p2
) == 0)
2052 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2053 if (strcmp (newsl
->name
, p2
) == 0)
2054 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2059 notice ("rename spec %s to %s\n", p1
, p2
);
2061 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2065 set_spec (p2
, *(sl
->ptr_spec
));
2067 free ((PTR
) *(sl
->ptr_spec
));
2069 *(sl
->ptr_spec
) = "";
2074 fatal ("specs unknown %% command after %ld characters",
2075 (long) (p1
- buffer
));
2078 /* Find the colon that should end the suffix. */
2080 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2083 /* The colon shouldn't be missing. */
2085 fatal ("specs file malformed after %ld characters",
2086 (long) (p1
- buffer
));
2088 /* Skip back over trailing whitespace. */
2090 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2093 /* Copy the suffix to a string. */
2094 suffix
= save_string (p
, p2
- p
);
2095 /* Find the next line. */
2096 p
= skip_whitespace (p1
+ 1);
2098 fatal ("specs file malformed after %ld characters",
2099 (long) (p
- buffer
));
2102 /* Find next blank line or end of string. */
2103 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2106 /* Specs end at the blank line and do not include the newline. */
2107 spec
= save_string (p
, p1
- p
);
2110 /* Delete backslash-newline sequences from the spec. */
2115 if (in
[0] == '\\' && in
[1] == '\n')
2117 else if (in
[0] == '#')
2118 while (*in
&& *in
!= '\n')
2126 if (suffix
[0] == '*')
2128 if (! strcmp (suffix
, "*link_command"))
2129 link_command_spec
= spec
;
2131 set_spec (suffix
+ 1, spec
);
2135 /* Add this pair to the vector. */
2137 = ((struct compiler
*)
2138 xrealloc (compilers
,
2139 (n_compilers
+ 2) * sizeof (struct compiler
)));
2141 compilers
[n_compilers
].suffix
= suffix
;
2142 compilers
[n_compilers
].spec
= spec
;
2144 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2148 link_command_spec
= spec
;
2151 if (link_command_spec
== 0)
2152 fatal ("spec file has no spec for linking");
2155 /* Record the names of temporary files we tell compilers to write,
2156 and delete them at the end of the run. */
2158 /* This is the common prefix we use to make temp file names.
2159 It is chosen once for each run of this program.
2160 It is substituted into a spec by %g or %j.
2161 Thus, all temp file names contain this prefix.
2162 In practice, all temp file names start with this prefix.
2164 This prefix comes from the envvar TMPDIR if it is defined;
2165 otherwise, from the P_tmpdir macro if that is defined;
2166 otherwise, in /usr/tmp or /tmp;
2167 or finally the current directory if all else fails. */
2169 static const char *temp_filename
;
2171 /* Length of the prefix. */
2173 static int temp_filename_length
;
2175 /* Define the list of temporary files to delete. */
2180 struct temp_file
*next
;
2183 /* Queue of files to delete on success or failure of compilation. */
2184 static struct temp_file
*always_delete_queue
;
2185 /* Queue of files to delete on failure of compilation. */
2186 static struct temp_file
*failure_delete_queue
;
2188 /* Record FILENAME as a file to be deleted automatically.
2189 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2190 otherwise delete it in any case.
2191 FAIL_DELETE nonzero means delete it if a compilation step fails;
2192 otherwise delete it in any case. */
2195 record_temp_file (filename
, always_delete
, fail_delete
)
2196 const char *filename
;
2200 char *const name
= xstrdup (filename
);
2204 struct temp_file
*temp
;
2205 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2206 if (! strcmp (name
, temp
->name
))
2209 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2210 temp
->next
= always_delete_queue
;
2212 always_delete_queue
= temp
;
2219 struct temp_file
*temp
;
2220 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2221 if (! strcmp (name
, temp
->name
))
2224 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2225 temp
->next
= failure_delete_queue
;
2227 failure_delete_queue
= temp
;
2233 /* Delete all the temporary files whose names we previously recorded. */
2236 delete_if_ordinary (name
)
2243 printf ("Delete %s? (y or n) ", name
);
2247 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2250 if (i
== 'y' || i
== 'Y')
2252 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2253 if (unlink (name
) < 0)
2255 perror_with_name (name
);
2259 delete_temp_files ()
2261 struct temp_file
*temp
;
2263 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2264 delete_if_ordinary (temp
->name
);
2265 always_delete_queue
= 0;
2268 /* Delete all the files to be deleted on error. */
2271 delete_failure_queue ()
2273 struct temp_file
*temp
;
2275 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2276 delete_if_ordinary (temp
->name
);
2280 clear_failure_queue ()
2282 failure_delete_queue
= 0;
2285 /* Build a list of search directories from PATHS.
2286 PREFIX is a string to prepend to the list.
2287 If CHECK_DIR_P is nonzero we ensure the directory exists.
2288 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2289 It is also used by the --print-search-dirs flag. */
2292 build_search_list (paths
, prefix
, check_dir_p
)
2293 struct path_prefix
*paths
;
2297 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2299 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2300 int first_time
= TRUE
;
2301 struct prefix_list
*pprefix
;
2303 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2304 obstack_1grow (&collect_obstack
, '=');
2306 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2308 int len
= strlen (pprefix
->prefix
);
2312 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2315 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2318 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2319 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2322 if (just_machine_suffix
2323 && pprefix
->require_machine_suffix
== 2
2325 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2328 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2331 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2332 obstack_grow (&collect_obstack
, just_machine_suffix
,
2336 if (! pprefix
->require_machine_suffix
)
2339 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2342 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2346 obstack_1grow (&collect_obstack
, '\0');
2347 return obstack_finish (&collect_obstack
);
2350 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2354 putenv_from_prefixes (paths
, env_var
)
2355 struct path_prefix
*paths
;
2356 const char *env_var
;
2358 putenv (build_search_list (paths
, env_var
, 1));
2361 /* Check whether NAME can be accessed in MODE. This is like access,
2362 except that it never considers directories to be executable. */
2365 access_check (name
, mode
)
2373 if (stat (name
, &st
) < 0
2374 || S_ISDIR (st
.st_mode
))
2378 return access (name
, mode
);
2381 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2382 access to check permissions.
2383 Return 0 if not found, otherwise return its name, allocated with malloc. */
2386 find_a_file (pprefix
, name
, mode
, multilib
)
2387 struct path_prefix
*pprefix
;
2392 const char *const file_suffix
=
2393 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2394 struct prefix_list
*pl
;
2395 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2396 const char *multilib_name
, *multilib_os_name
;
2398 #ifdef DEFAULT_ASSEMBLER
2399 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2400 return xstrdup (DEFAULT_ASSEMBLER
);
2403 #ifdef DEFAULT_LINKER
2404 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2405 return xstrdup (DEFAULT_LINKER
);
2409 len
+= strlen (machine_suffix
);
2411 multilib_name
= name
;
2412 multilib_os_name
= name
;
2413 if (multilib
&& multilib_os_dir
)
2415 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2416 int len2
= strlen (multilib_os_dir
) + 1;
2418 len
+= len1
> len2
? len1
: len2
;
2420 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2422 if (strcmp (multilib_os_dir
, ".") != 0)
2423 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2427 temp
= xmalloc (len
);
2429 /* Determine the filename to execute (special case for absolute paths). */
2431 if (IS_ABSOLUTE_PATHNAME (name
))
2433 if (access (name
, mode
) == 0)
2435 strcpy (temp
, name
);
2440 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2442 const char *this_name
2443 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2447 /* Some systems have a suffix for executable files.
2448 So try appending that first. */
2449 if (file_suffix
[0] != 0)
2451 strcpy (temp
, pl
->prefix
);
2452 strcat (temp
, machine_suffix
);
2453 strcat (temp
, multilib_name
);
2454 strcat (temp
, file_suffix
);
2455 if (access_check (temp
, mode
) == 0)
2457 if (pl
->used_flag_ptr
!= 0)
2458 *pl
->used_flag_ptr
= 1;
2463 /* Now try just the multilib_name. */
2464 strcpy (temp
, pl
->prefix
);
2465 strcat (temp
, machine_suffix
);
2466 strcat (temp
, multilib_name
);
2467 if (access_check (temp
, mode
) == 0)
2469 if (pl
->used_flag_ptr
!= 0)
2470 *pl
->used_flag_ptr
= 1;
2475 /* Certain prefixes are tried with just the machine type,
2476 not the version. This is used for finding as, ld, etc. */
2477 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2479 /* Some systems have a suffix for executable files.
2480 So try appending that first. */
2481 if (file_suffix
[0] != 0)
2483 strcpy (temp
, pl
->prefix
);
2484 strcat (temp
, just_machine_suffix
);
2485 strcat (temp
, multilib_name
);
2486 strcat (temp
, file_suffix
);
2487 if (access_check (temp
, mode
) == 0)
2489 if (pl
->used_flag_ptr
!= 0)
2490 *pl
->used_flag_ptr
= 1;
2495 strcpy (temp
, pl
->prefix
);
2496 strcat (temp
, just_machine_suffix
);
2497 strcat (temp
, multilib_name
);
2498 if (access_check (temp
, mode
) == 0)
2500 if (pl
->used_flag_ptr
!= 0)
2501 *pl
->used_flag_ptr
= 1;
2506 /* Certain prefixes can't be used without the machine suffix
2507 when the machine or version is explicitly specified. */
2508 if (! pl
->require_machine_suffix
)
2510 /* Some systems have a suffix for executable files.
2511 So try appending that first. */
2512 if (file_suffix
[0] != 0)
2514 strcpy (temp
, pl
->prefix
);
2515 strcat (temp
, this_name
);
2516 strcat (temp
, file_suffix
);
2517 if (access_check (temp
, mode
) == 0)
2519 if (pl
->used_flag_ptr
!= 0)
2520 *pl
->used_flag_ptr
= 1;
2525 strcpy (temp
, pl
->prefix
);
2526 strcat (temp
, this_name
);
2527 if (access_check (temp
, mode
) == 0)
2529 if (pl
->used_flag_ptr
!= 0)
2530 *pl
->used_flag_ptr
= 1;
2540 /* Ranking of prefixes in the sort list. -B prefixes are put before
2543 enum path_prefix_priority
2545 PREFIX_PRIORITY_B_OPT
,
2546 PREFIX_PRIORITY_LAST
2549 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2550 order according to PRIORITY. Within each PRIORITY, new entries are
2553 If WARN is nonzero, we will warn if no file is found
2554 through this prefix. WARN should point to an int
2555 which will be set to 1 if this entry is used.
2557 COMPONENT is the value to be passed to update_path.
2559 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2560 the complete value of machine_suffix.
2561 2 means try both machine_suffix and just_machine_suffix. */
2564 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
,
2566 struct path_prefix
*pprefix
;
2568 const char *component
;
2569 /* enum prefix_priority */ int priority
;
2570 int require_machine_suffix
;
2574 struct prefix_list
*pl
, **prev
;
2577 for (prev
= &pprefix
->plist
;
2578 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2579 prev
= &(*prev
)->next
)
2582 /* Keep track of the longest prefix */
2584 prefix
= update_path (prefix
, component
);
2585 len
= strlen (prefix
);
2586 if (len
> pprefix
->max_len
)
2587 pprefix
->max_len
= len
;
2589 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2590 pl
->prefix
= prefix
;
2591 pl
->require_machine_suffix
= require_machine_suffix
;
2592 pl
->used_flag_ptr
= warn
;
2593 pl
->priority
= priority
;
2594 pl
->os_multilib
= os_multilib
;
2598 /* Insert after PREV */
2603 /* Same as add_prefix, but prepending target_system_root to prefix. */
2605 add_sysrooted_prefix (pprefix
, prefix
, component
, priority
,
2606 require_machine_suffix
, warn
, os_multilib
)
2607 struct path_prefix
*pprefix
;
2609 const char *component
;
2610 /* enum prefix_priority */ int priority
;
2611 int require_machine_suffix
;
2615 if (!IS_ABSOLUTE_PATHNAME (prefix
))
2618 if (target_system_root
)
2620 prefix
= concat (target_system_root
, prefix
, NULL
);
2621 /* We have to override this because GCC's notion of sysroot
2622 moves along with GCC. */
2626 add_prefix (pprefix
, prefix
, component
, priority
,
2627 require_machine_suffix
, warn
, os_multilib
);
2630 /* Execute the command specified by the arguments on the current line of spec.
2631 When using pipes, this includes several piped-together commands
2632 with `|' between them.
2634 Return 0 if successful, -1 if failed. */
2640 int n_commands
; /* # of command. */
2644 const char *prog
; /* program name. */
2645 const char **argv
; /* vector of args. */
2646 int pid
; /* pid of process for this command. */
2649 struct command
*commands
; /* each command buffer with above info. */
2651 if (processing_spec_function
)
2654 /* Count # of piped commands. */
2655 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2656 if (strcmp (argbuf
[i
], "|") == 0)
2659 /* Get storage for each command. */
2660 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2662 /* Split argbuf into its separate piped processes,
2663 and record info about each one.
2664 Also search for the programs that are to be run. */
2666 commands
[0].prog
= argbuf
[0]; /* first command. */
2667 commands
[0].argv
= &argbuf
[0];
2668 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2671 commands
[0].argv
[0] = string
;
2673 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2674 if (strcmp (argbuf
[i
], "|") == 0)
2675 { /* each command. */
2676 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2677 fatal ("-pipe not supported");
2679 argbuf
[i
] = 0; /* termination of command args. */
2680 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2681 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2682 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2685 commands
[n_commands
].argv
[0] = string
;
2689 argbuf
[argbuf_index
] = 0;
2691 /* If -v, print what we are about to do, and maybe query. */
2695 /* For help listings, put a blank line between sub-processes. */
2696 if (print_help_list
)
2697 fputc ('\n', stderr
);
2699 /* Print each piped command as a separate line. */
2700 for (i
= 0; i
< n_commands
; i
++)
2702 const char *const *j
;
2704 if (verbose_only_flag
)
2706 for (j
= commands
[i
].argv
; *j
; j
++)
2709 fprintf (stderr
, " \"");
2710 for (p
= *j
; *p
; ++p
)
2712 if (*p
== '"' || *p
== '\\' || *p
== '$')
2713 fputc ('\\', stderr
);
2716 fputc ('"', stderr
);
2720 for (j
= commands
[i
].argv
; *j
; j
++)
2721 fprintf (stderr
, " %s", *j
);
2723 /* Print a pipe symbol after all but the last command. */
2724 if (i
+ 1 != n_commands
)
2725 fprintf (stderr
, " |");
2726 fprintf (stderr
, "\n");
2729 if (verbose_only_flag
!= 0)
2732 notice ("\nGo ahead? (y or n) ");
2736 while (getchar () != '\n')
2739 if (i
!= 'y' && i
!= 'Y')
2744 #ifdef ENABLE_VALGRIND_CHECKING
2745 /* Run the each command through valgrind. To simplify prepending the
2746 path to valgrind and the option "-q" (for quiet operation unless
2747 something triggers), we allocate a separate argv array. */
2749 for (i
= 0; i
< n_commands
; i
++)
2755 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2758 argv
= alloca ((argc
+ 3) * sizeof (char *));
2760 argv
[0] = VALGRIND_PATH
;
2762 for (j
= 2; j
< argc
+ 2; j
++)
2763 argv
[j
] = commands
[i
].argv
[j
- 2];
2766 commands
[i
].argv
= argv
;
2767 commands
[i
].prog
= argv
[0];
2771 /* Run each piped subprocess. */
2773 for (i
= 0; i
< n_commands
; i
++)
2775 char *errmsg_fmt
, *errmsg_arg
;
2776 const char *string
= commands
[i
].argv
[0];
2778 /* For some bizarre reason, the second argument of execvp() is
2779 char *const *, not const char *const *. */
2780 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2781 programname
, temp_filename
,
2782 &errmsg_fmt
, &errmsg_arg
,
2783 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2784 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2785 | (string
== commands
[i
].prog
2786 ? PEXECUTE_SEARCH
: 0)
2787 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2789 if (commands
[i
].pid
== -1)
2790 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2792 if (string
!= commands
[i
].prog
)
2793 free ((PTR
) string
);
2798 /* Wait for all the subprocesses to finish.
2799 We don't care what order they finish in;
2800 we know that N_COMMANDS waits will get them all.
2801 Ignore subprocesses that we don't know about,
2802 since they can be spawned by the process that exec'ed us. */
2806 #ifdef HAVE_GETRUSAGE
2808 double ut
= 0.0, st
= 0.0;
2811 for (i
= 0; i
< n_commands
;)
2817 pid
= pwait (commands
[i
].pid
, &status
, 0);
2821 #ifdef HAVE_GETRUSAGE
2824 /* getrusage returns the total resource usage of all children
2825 up to now. Copy the previous values into prus, get the
2826 current statistics, then take the difference. */
2829 getrusage (RUSAGE_CHILDREN
, &rus
);
2830 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2831 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2832 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2834 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2835 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2836 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2840 for (j
= 0; j
< n_commands
; j
++)
2841 if (commands
[j
].pid
== pid
)
2844 if (WIFSIGNALED (status
))
2847 /* SIGPIPE is a special case. It happens in -pipe mode
2848 when the compiler dies before the preprocessor is
2849 done, or the assembler dies before the compiler is
2850 done. There's generally been an error already, and
2851 this is just fallout. So don't generate another error
2852 unless we would otherwise have succeeded. */
2853 if (WTERMSIG (status
) == SIGPIPE
2854 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2859 Internal error: %s (program %s)\n\
2860 Please submit a full bug report.\n\
2861 See %s for instructions.",
2862 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2867 else if (WIFEXITED (status
)
2868 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2870 if (WEXITSTATUS (status
) > greatest_status
)
2871 greatest_status
= WEXITSTATUS (status
);
2874 #ifdef HAVE_GETRUSAGE
2875 if (report_times
&& ut
+ st
!= 0)
2876 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2885 /* Find all the switches given to us
2886 and make a vector describing them.
2887 The elements of the vector are strings, one per switch given.
2888 If a switch uses following arguments, then the `part1' field
2889 is the switch itself and the `args' field
2890 is a null-terminated vector containing the following arguments.
2891 The `live_cond' field is:
2893 1 if the switch is true in a conditional spec,
2894 -1 if false (overridden by a later switch)
2895 -2 if this switch should be ignored (used in %<S)
2896 The `validated' field is nonzero if any spec has looked at this switch;
2897 if it remains zero at the end of the run, it must be meaningless. */
2900 #define SWITCH_FALSE -1
2901 #define SWITCH_IGNORE -2
2902 #define SWITCH_LIVE 1
2909 unsigned char validated
;
2910 unsigned char ordering
;
2913 static struct switchstr
*switches
;
2915 static int n_switches
;
2920 const char *language
;
2923 /* Also a vector of input files specified. */
2925 static struct infile
*infiles
;
2929 /* This counts the number of libraries added by lang_specific_driver, so that
2930 we can tell if there were any user supplied any files or libraries. */
2932 static int added_libraries
;
2934 /* And a vector of corresponding output files is made up later. */
2936 const char **outfiles
;
2938 /* Used to track if none of the -B paths are used. */
2941 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2942 static int *warn_std_ptr
= 0;
2944 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2946 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2947 is true if we should look for an executable suffix. DO_OBJ
2948 is true if we should look for an object suffix. */
2951 convert_filename (name
, do_exe
, do_obj
)
2953 int do_exe ATTRIBUTE_UNUSED
;
2954 int do_obj ATTRIBUTE_UNUSED
;
2956 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2964 len
= strlen (name
);
2966 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2967 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2968 if (do_obj
&& len
> 2
2969 && name
[len
- 2] == '.'
2970 && name
[len
- 1] == 'o')
2972 obstack_grow (&obstack
, name
, len
- 2);
2973 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2974 name
= obstack_finish (&obstack
);
2978 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2979 /* If there is no filetype, make it the executable suffix (which includes
2980 the "."). But don't get confused if we have just "-o". */
2981 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2984 for (i
= len
- 1; i
>= 0; i
--)
2985 if (IS_DIR_SEPARATOR (name
[i
]))
2988 for (i
++; i
< len
; i
++)
2992 obstack_grow (&obstack
, name
, len
);
2993 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2994 strlen (TARGET_EXECUTABLE_SUFFIX
));
2995 name
= obstack_finish (&obstack
);
3002 /* Display the command line switches accepted by gcc. */
3006 printf (_("Usage: %s [options] file...\n"), programname
);
3007 fputs (_("Options:\n"), stdout
);
3009 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3010 fputs (_(" --help Display this information\n"), stdout
);
3011 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3013 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3014 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3015 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3016 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3017 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3018 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3019 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3020 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3021 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3023 -print-multi-lib Display the mapping between command line options and\n\
3024 multiple library search directories\n"), stdout
);
3025 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3026 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3027 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3028 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3029 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3030 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3031 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3032 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3033 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3034 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3035 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3036 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3037 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3038 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3039 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3040 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3041 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3042 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3043 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3044 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3045 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3047 -x <language> Specify the language of the following input files\n\
3048 Permissable languages include: c c++ assembler none\n\
3049 'none' means revert to the default behavior of\n\
3050 guessing the language based on the file's extension\n\
3054 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3055 passed on to the various sub-processes invoked by %s. In order to pass\n\
3056 other options on to these processes the -W<letter> options must be used.\n\
3059 /* The rest of the options are displayed by invocations of the various
3064 add_preprocessor_option (option
, len
)
3068 n_preprocessor_options
++;
3070 if (! preprocessor_options
)
3071 preprocessor_options
3072 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3074 preprocessor_options
3075 = (char **) xrealloc (preprocessor_options
,
3076 n_preprocessor_options
* sizeof (char *));
3078 preprocessor_options
[n_preprocessor_options
- 1] =
3079 save_string (option
, len
);
3083 add_assembler_option (option
, len
)
3087 n_assembler_options
++;
3089 if (! assembler_options
)
3091 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3094 = (char **) xrealloc (assembler_options
,
3095 n_assembler_options
* sizeof (char *));
3097 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3101 add_linker_option (option
, len
)
3107 if (! linker_options
)
3109 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3112 = (char **) xrealloc (linker_options
,
3113 n_linker_options
* sizeof (char *));
3115 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3118 /* Create the vector `switches' and its contents.
3119 Store its length in `n_switches'. */
3122 process_command (argc
, argv
)
3124 const char *const *argv
;
3129 const char *spec_lang
= 0;
3130 int last_language_n_infiles
;
3133 int lang_n_infiles
= 0;
3134 #ifdef MODIFY_TARGET_NAME
3135 int is_modify_target_name
;
3139 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3143 added_libraries
= 0;
3145 /* Figure compiler version from version string. */
3147 compiler_version
= temp1
= xstrdup (version_string
);
3149 for (; *temp1
; ++temp1
)
3158 /* If there is a -V or -b option (or both), process it now, before
3159 trying to interpret the rest of the command line. */
3160 if (argc
> 1 && argv
[1][0] == '-'
3161 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3163 const char *new_version
= DEFAULT_TARGET_VERSION
;
3164 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3165 const char *progname
= argv
[0];
3170 while (argc
> 1 && argv
[1][0] == '-'
3171 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3173 char opt
= argv
[1][1];
3175 if (argv
[1][2] != '\0')
3188 fatal ("`-%c' option must have argument", opt
);
3195 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3196 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3198 new_argv0
= xmemdup (progname
, baselen
,
3199 baselen
+ concat_length (new_version
, new_machine
,
3200 "-gcc-", NULL
) + 1);
3201 strcpy (new_argv0
+ baselen
, new_machine
);
3202 strcat (new_argv0
, "-gcc-");
3203 strcat (new_argv0
, new_version
);
3205 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3206 (argc
+ 1) * sizeof (argv
[0]));
3207 new_argv
[0] = new_argv0
;
3209 execvp (new_argv0
, new_argv
);
3210 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3213 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3214 see if we can create it from the pathname specified in argv[0]. */
3217 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3218 if (!gcc_exec_prefix
)
3220 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3221 standard_exec_prefix
);
3222 if (gcc_exec_prefix
)
3223 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3227 if (gcc_exec_prefix
)
3229 int len
= strlen (gcc_exec_prefix
);
3231 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3232 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3234 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3235 if (IS_DIR_SEPARATOR (*temp
)
3236 && strncmp (temp
+ 1, "lib", 3) == 0
3237 && IS_DIR_SEPARATOR (temp
[4])
3238 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3239 len
-= sizeof ("/lib/gcc-lib/") - 1;
3242 set_std_prefix (gcc_exec_prefix
, len
);
3243 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3244 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3245 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3246 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3249 /* COMPILER_PATH and LIBRARY_PATH have values
3250 that are lists of directory names with colons. */
3252 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3255 const char *startp
, *endp
;
3256 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3258 startp
= endp
= temp
;
3261 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3263 strncpy (nstore
, startp
, endp
- startp
);
3265 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3266 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3268 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3269 nstore
[endp
- startp
+ 1] = 0;
3272 nstore
[endp
- startp
] = 0;
3273 add_prefix (&exec_prefixes
, nstore
, 0,
3274 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3275 add_prefix (&include_prefixes
,
3276 concat (nstore
, "include", NULL
),
3277 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3280 endp
= startp
= endp
+ 1;
3287 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3288 if (temp
&& *cross_compile
== '0')
3290 const char *startp
, *endp
;
3291 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3293 startp
= endp
= temp
;
3296 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3298 strncpy (nstore
, startp
, endp
- startp
);
3300 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3301 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3303 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3304 nstore
[endp
- startp
+ 1] = 0;
3307 nstore
[endp
- startp
] = 0;
3308 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3309 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3312 endp
= startp
= endp
+ 1;
3319 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3320 GET_ENVIRONMENT (temp
, "LPATH");
3321 if (temp
&& *cross_compile
== '0')
3323 const char *startp
, *endp
;
3324 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3326 startp
= endp
= temp
;
3329 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3331 strncpy (nstore
, startp
, endp
- startp
);
3333 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3334 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3336 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3337 nstore
[endp
- startp
+ 1] = 0;
3340 nstore
[endp
- startp
] = 0;
3341 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3342 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3345 endp
= startp
= endp
+ 1;
3352 /* Convert new-style -- options to old-style. */
3353 translate_options (&argc
, &argv
);
3355 /* Do language-specific adjustment/addition of flags. */
3356 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3358 /* Scan argv twice. Here, the first time, just count how many switches
3359 there will be in their vector, and how many input files in theirs.
3360 Here we also parse the switches that cc itself uses (e.g. -v). */
3362 for (i
= 1; i
< argc
; i
++)
3364 if (! strcmp (argv
[i
], "-dumpspecs"))
3366 struct spec_list
*sl
;
3368 for (sl
= specs
; sl
; sl
= sl
->next
)
3369 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3370 if (link_command_spec
)
3371 printf ("*link_command:\n%s\n\n", link_command_spec
);
3374 else if (! strcmp (argv
[i
], "-dumpversion"))
3376 printf ("%s\n", spec_version
);
3379 else if (! strcmp (argv
[i
], "-dumpmachine"))
3381 printf ("%s\n", spec_machine
);
3384 else if (strcmp (argv
[i
], "-fversion") == 0)
3386 /* translate_options () has turned --version into -fversion. */
3387 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3388 fputs (_("Copyright (C) 2002 Free Software Foundation, Inc.\n"),
3390 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3391 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3395 else if (strcmp (argv
[i
], "-fhelp") == 0)
3397 /* translate_options () has turned --help into -fhelp. */
3398 print_help_list
= 1;
3400 /* We will be passing a dummy file on to the sub-processes. */
3404 /* CPP driver cannot obtain switch from cc1_options. */
3406 add_preprocessor_option ("--help", 6);
3407 add_assembler_option ("--help", 6);
3408 add_linker_option ("--help", 6);
3410 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3412 /* translate_options() has turned --target-help into -ftarget-help. */
3413 target_help_flag
= 1;
3415 /* We will be passing a dummy file on to the sub-processes. */
3419 /* CPP driver cannot obtain switch from cc1_options. */
3421 add_preprocessor_option ("--target-help", 13);
3422 add_assembler_option ("--target-help", 13);
3423 add_linker_option ("--target-help", 13);
3425 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3427 pass_exit_codes
= 1;
3430 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3431 print_search_dirs
= 1;
3432 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3433 print_file_name
= "libgcc.a";
3434 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3435 print_file_name
= argv
[i
] + 17;
3436 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3437 print_prog_name
= argv
[i
] + 17;
3438 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3439 print_multi_lib
= 1;
3440 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3441 print_multi_directory
= 1;
3442 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3443 print_multi_os_directory
= 1;
3444 else if (! strncmp (argv
[i
], "-Wa,", 4))
3447 /* Pass the rest of this option to the assembler. */
3449 /* Split the argument at commas. */
3451 for (j
= 4; argv
[i
][j
]; j
++)
3452 if (argv
[i
][j
] == ',')
3454 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3458 /* Record the part after the last comma. */
3459 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3461 else if (! strncmp (argv
[i
], "-Wp,", 4))
3464 /* Pass the rest of this option to the preprocessor. */
3466 /* Split the argument at commas. */
3468 for (j
= 4; argv
[i
][j
]; j
++)
3469 if (argv
[i
][j
] == ',')
3471 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3475 /* Record the part after the last comma. */
3476 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3478 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3479 /* The +e options to the C++ front-end. */
3481 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3484 /* Split the argument at commas. */
3485 for (j
= 3; argv
[i
][j
]; j
++)
3486 n_infiles
+= (argv
[i
][j
] == ',');
3488 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3491 fatal ("argument to `-Xlinker' is missing");
3496 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3499 fatal ("argument to `-Xpreprocessor' is missing");
3501 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3503 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3506 fatal ("argument to `-Xassembler' is missing");
3508 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3510 else if (strcmp (argv
[i
], "-l") == 0)
3513 fatal ("argument to `-l' is missing");
3518 else if (strncmp (argv
[i
], "-l", 2) == 0)
3520 else if (strcmp (argv
[i
], "-save-temps") == 0)
3522 save_temps_flag
= 1;
3525 else if (strcmp (argv
[i
], "-specs") == 0)
3527 struct user_specs
*user
= (struct user_specs
*)
3528 xmalloc (sizeof (struct user_specs
));
3530 fatal ("argument to `-specs' is missing");
3532 user
->next
= (struct user_specs
*) 0;
3533 user
->filename
= argv
[i
];
3534 if (user_specs_tail
)
3535 user_specs_tail
->next
= user
;
3537 user_specs_head
= user
;
3538 user_specs_tail
= user
;
3540 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3542 struct user_specs
*user
= (struct user_specs
*)
3543 xmalloc (sizeof (struct user_specs
));
3544 if (strlen (argv
[i
]) == 7)
3545 fatal ("argument to `-specs=' is missing");
3547 user
->next
= (struct user_specs
*) 0;
3548 user
->filename
= argv
[i
] + 7;
3549 if (user_specs_tail
)
3550 user_specs_tail
->next
= user
;
3552 user_specs_head
= user
;
3553 user_specs_tail
= user
;
3555 else if (strcmp (argv
[i
], "-time") == 0)
3557 else if (strcmp (argv
[i
], "-pipe") == 0)
3559 /* -pipe has to go into the switches array as well as
3564 else if (strcmp (argv
[i
], "-###") == 0)
3566 /* This is similar to -v except that there is no execution
3567 of the commands and the echoed arguments are quoted. It
3568 is intended for use in shell scripts to capture the
3569 driver-generated command line. */
3570 verbose_only_flag
++;
3573 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3575 const char *p
= &argv
[i
][1];
3582 fatal ("`-%c' must come at the start of the command line", c
);
3590 if (p
[1] == 0 && i
+ 1 == argc
)
3591 fatal ("argument to `-B' is missing");
3597 len
= strlen (value
);
3599 /* Catch the case where the user has forgotten to append a
3600 directory separator to the path. Note, they may be using
3601 -B to add an executable name prefix, eg "i386-elf-", in
3602 order to distinguish between multiple installations of
3603 GCC in the same directory. Hence we must check to see
3604 if appending a directory separator actually makes a
3605 valid directory name. */
3606 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3607 && is_directory (value
, "", 0))
3609 char *tmp
= xmalloc (len
+ 2);
3610 strcpy (tmp
, value
);
3611 tmp
[len
] = DIR_SEPARATOR
;
3616 /* As a kludge, if the arg is "[foo/]stageN/", just
3617 add "[foo/]include" to the include prefix. */
3620 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3621 && strncmp (value
+ len
- 7, "stage", 5) == 0
3622 && ISDIGIT (value
[len
- 2])
3623 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3626 add_prefix (&include_prefixes
, "include", NULL
,
3627 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3630 char * string
= xmalloc (len
+ 1);
3632 strncpy (string
, value
, len
- 7);
3633 strcpy (string
+ len
- 7, "include");
3634 add_prefix (&include_prefixes
, string
, NULL
,
3635 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3639 add_prefix (&exec_prefixes
, value
, NULL
,
3640 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3641 add_prefix (&startfile_prefixes
, value
, NULL
,
3642 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3643 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3644 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3649 case 'v': /* Print our subcommands and print versions. */
3651 /* If they do anything other than exactly `-v', don't set
3652 verbose_flag; rather, continue on to give the error. */
3670 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3675 /* Forward scan, just in case -S or -c is specified
3682 if (argv
[j
][0] == '-')
3684 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3690 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3691 j
+= skip
- (argv
[j
][2] != 0);
3692 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3699 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3701 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3703 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3710 #ifdef MODIFY_TARGET_NAME
3711 is_modify_target_name
= 0;
3713 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3714 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3717 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3718 + strlen (spec_machine
));
3721 int made_addition
= 0;
3723 is_modify_target_name
= 1;
3724 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3726 if (modify_target
[j
].add_del
== DELETE
3727 && (! strncmp (q
, modify_target
[j
].str
,
3728 strlen (modify_target
[j
].str
))))
3729 p
+= strlen (modify_target
[j
].str
);
3730 else if (modify_target
[j
].add_del
== ADD
3731 && ! made_addition
&& *p
== '-')
3733 for (r
= modify_target
[j
].str
; *r
!= 0; )
3741 spec_machine
= new_name
;
3744 if (is_modify_target_name
)
3750 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3751 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3752 else if (WORD_SWITCH_TAKES_ARG (p
))
3753 i
+= WORD_SWITCH_TAKES_ARG (p
);
3763 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3764 fatal ("cannot specify -o with -c or -S and multiple compilations");
3766 if ((save_temps_flag
|| report_times
) && use_pipes
)
3768 /* -save-temps overrides -pipe, so that temp files are produced */
3769 if (save_temps_flag
)
3770 error ("warning: -pipe ignored because -save-temps specified");
3771 /* -time overrides -pipe because we can't get correct stats when
3772 multiple children are running at once. */
3773 else if (report_times
)
3774 error ("warning: -pipe ignored because -time specified");
3779 /* Set up the search paths before we go looking for config files. */
3781 /* These come before the md prefixes so that we will find gcc's subcommands
3782 (such as cpp) rather than those of the host system. */
3783 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3784 as well as trying the machine and the version. */
3786 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3787 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3788 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3789 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3790 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3791 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3794 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3795 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3796 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3797 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3799 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3800 dir_separator_str
, NULL
);
3802 /* If tooldir is relative, base it on exec_prefixes. A relative
3803 tooldir lets us move the installed tree as a unit.
3805 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3806 directories, so that we can search both the user specified directory
3807 and the standard place. */
3809 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3811 if (gcc_exec_prefix
)
3813 char *gcc_exec_tooldir_prefix
3814 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3815 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3817 add_prefix (&exec_prefixes
,
3818 concat (gcc_exec_tooldir_prefix
, "bin",
3819 dir_separator_str
, NULL
),
3820 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3821 add_prefix (&startfile_prefixes
,
3822 concat (gcc_exec_tooldir_prefix
, "lib",
3823 dir_separator_str
, NULL
),
3824 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3827 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3828 dir_separator_str
, spec_version
,
3829 dir_separator_str
, tooldir_prefix
, NULL
);
3832 add_prefix (&exec_prefixes
,
3833 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3834 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3835 add_prefix (&startfile_prefixes
,
3836 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3837 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3839 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3840 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3841 then consider it to relocate with the rest of the GCC installation
3842 if GCC_EXEC_PREFIX is set.
3843 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3844 if (target_system_root
&& gcc_exec_prefix
)
3846 char *tmp_prefix
= make_relative_prefix (argv
[0],
3847 standard_bindir_prefix
,
3848 target_system_root
);
3849 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3851 target_system_root
= tmp_prefix
;
3852 target_system_root_changed
= 1;
3857 /* More prefixes are enabled in main, after we read the specs file
3858 and determine whether this is cross-compilation or not. */
3860 /* Then create the space for the vectors and scan again. */
3862 switches
= ((struct switchstr
*)
3863 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3864 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3867 last_language_n_infiles
= -1;
3869 /* This, time, copy the text of each switch and store a pointer
3870 to the copy in the vector of switches.
3871 Store all the infiles in their vector. */
3873 for (i
= 1; i
< argc
; i
++)
3875 /* Just skip the switches that were handled by the preceding loop. */
3876 #ifdef MODIFY_TARGET_NAME
3877 is_modify_target_name
= 0;
3879 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3880 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3881 is_modify_target_name
= 1;
3883 if (is_modify_target_name
)
3887 if (! strncmp (argv
[i
], "-Wa,", 4))
3889 else if (! strncmp (argv
[i
], "-Wp,", 4))
3891 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3893 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3895 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3897 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3899 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3901 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3903 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3905 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3907 else if (! strcmp (argv
[i
], "-ftarget-help"))
3909 else if (! strcmp (argv
[i
], "-fhelp"))
3911 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3913 /* Compensate for the +e options to the C++ front-end;
3914 they're there simply for cfront call-compatibility. We do
3915 some magic in default_compilers to pass them down properly.
3916 Note we deliberately start at the `+' here, to avoid passing
3917 -e0 or -e1 down into the linker. */
3918 switches
[n_switches
].part1
= &argv
[i
][0];
3919 switches
[n_switches
].args
= 0;
3920 switches
[n_switches
].live_cond
= SWITCH_OK
;
3921 switches
[n_switches
].validated
= 0;
3924 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3927 /* Split the argument at commas. */
3929 for (j
= 4; argv
[i
][j
]; j
++)
3930 if (argv
[i
][j
] == ',')
3932 infiles
[n_infiles
].language
= "*";
3933 infiles
[n_infiles
++].name
3934 = save_string (argv
[i
] + prev
, j
- prev
);
3937 /* Record the part after the last comma. */
3938 infiles
[n_infiles
].language
= "*";
3939 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3941 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3943 infiles
[n_infiles
].language
= "*";
3944 infiles
[n_infiles
++].name
= argv
[++i
];
3946 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3948 infiles
[n_infiles
].language
= "*";
3949 infiles
[n_infiles
++].name
= argv
[++i
];
3951 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3953 infiles
[n_infiles
].language
= "*";
3954 infiles
[n_infiles
++].name
= argv
[++i
];
3956 else if (strcmp (argv
[i
], "-l") == 0)
3957 { /* POSIX allows separation of -l and the lib arg;
3958 canonicalize by concatenating -l with its arg */
3959 infiles
[n_infiles
].language
= "*";
3960 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3962 else if (strncmp (argv
[i
], "-l", 2) == 0)
3964 infiles
[n_infiles
].language
= "*";
3965 infiles
[n_infiles
++].name
= argv
[i
];
3967 else if (strcmp (argv
[i
], "-specs") == 0)
3969 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3971 else if (strcmp (argv
[i
], "-time") == 0)
3973 else if (strcmp (argv
[i
], "-###") == 0)
3975 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3977 const char *p
= &argv
[i
][1];
3982 if (p
[1] == 0 && i
+ 1 == argc
)
3983 fatal ("argument to `-x' is missing");
3985 spec_lang
= argv
[++i
];
3988 if (! strcmp (spec_lang
, "none"))
3989 /* Suppress the warning if -xnone comes after the last input
3990 file, because alternate command interfaces like g++ might
3991 find it useful to place -xnone after each input file. */
3994 last_language_n_infiles
= n_infiles
;
3997 switches
[n_switches
].part1
= p
;
3998 /* Deal with option arguments in separate argv elements. */
3999 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4000 || WORD_SWITCH_TAKES_ARG (p
))
4003 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4007 /* Count only the option arguments in separate argv elements. */
4008 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4010 if (i
+ n_args
>= argc
)
4011 fatal ("argument to `-%s' is missing", p
);
4012 switches
[n_switches
].args
4013 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
4015 switches
[n_switches
].args
[j
++] = argv
[++i
];
4016 /* Null-terminate the vector. */
4017 switches
[n_switches
].args
[j
] = 0;
4019 else if (strchr (switches_need_spaces
, c
))
4021 /* On some systems, ld cannot handle some options without
4022 a space. So split the option from its argument. */
4023 char *part1
= (char *) xmalloc (2);
4027 switches
[n_switches
].part1
= part1
;
4028 switches
[n_switches
].args
4029 = (const char **) xmalloc (2 * sizeof (const char *));
4030 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4031 switches
[n_switches
].args
[1] = 0;
4034 switches
[n_switches
].args
= 0;
4036 switches
[n_switches
].live_cond
= SWITCH_OK
;
4037 switches
[n_switches
].validated
= 0;
4038 switches
[n_switches
].ordering
= 0;
4039 /* These are always valid, since gcc.c itself understands them. */
4040 if (!strcmp (p
, "save-temps")
4041 || !strcmp (p
, "static-libgcc")
4042 || !strcmp (p
, "shared-libgcc")
4043 || !strcmp (p
, "pipe"))
4044 switches
[n_switches
].validated
= 1;
4047 char ch
= switches
[n_switches
].part1
[0];
4049 switches
[n_switches
].validated
= 1;
4055 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4056 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4059 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4061 perror_with_name (argv
[i
]);
4066 infiles
[n_infiles
].language
= spec_lang
;
4067 infiles
[n_infiles
++].name
= argv
[i
];
4072 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4073 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4075 /* Ensure we only invoke each subprocess once. */
4076 if (target_help_flag
|| print_help_list
)
4080 /* Create a dummy input file, so that we can pass --target-help on to
4081 the various sub-processes. */
4082 infiles
[0].language
= "c";
4083 infiles
[0].name
= "help-dummy";
4085 if (target_help_flag
)
4087 switches
[n_switches
].part1
= "--target-help";
4088 switches
[n_switches
].args
= 0;
4089 switches
[n_switches
].live_cond
= SWITCH_OK
;
4090 switches
[n_switches
].validated
= 0;
4095 if (print_help_list
)
4097 switches
[n_switches
].part1
= "--help";
4098 switches
[n_switches
].args
= 0;
4099 switches
[n_switches
].live_cond
= SWITCH_OK
;
4100 switches
[n_switches
].validated
= 0;
4106 switches
[n_switches
].part1
= 0;
4107 infiles
[n_infiles
].name
= 0;
4110 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4111 and place that in the environment. */
4114 set_collect_gcc_options ()
4119 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4121 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4122 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4125 for (i
= 0; (int) i
< n_switches
; i
++)
4127 const char *const *args
;
4130 obstack_grow (&collect_obstack
, " ", 1);
4134 /* Ignore elided switches. */
4135 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4138 obstack_grow (&collect_obstack
, "'-", 2);
4139 q
= switches
[i
].part1
;
4140 while ((p
= strchr (q
, '\'')))
4142 obstack_grow (&collect_obstack
, q
, p
- q
);
4143 obstack_grow (&collect_obstack
, "'\\''", 4);
4146 obstack_grow (&collect_obstack
, q
, strlen (q
));
4147 obstack_grow (&collect_obstack
, "'", 1);
4149 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4151 obstack_grow (&collect_obstack
, " '", 2);
4153 while ((p
= strchr (q
, '\'')))
4155 obstack_grow (&collect_obstack
, q
, p
- q
);
4156 obstack_grow (&collect_obstack
, "'\\''", 4);
4159 obstack_grow (&collect_obstack
, q
, strlen (q
));
4160 obstack_grow (&collect_obstack
, "'", 1);
4163 obstack_grow (&collect_obstack
, "\0", 1);
4164 putenv (obstack_finish (&collect_obstack
));
4167 /* Process a spec string, accumulating and running commands. */
4169 /* These variables describe the input file name.
4170 input_file_number is the index on outfiles of this file,
4171 so that the output file name can be stored for later use by %o.
4172 input_basename is the start of the part of the input file
4173 sans all directory names, and basename_length is the number
4174 of characters starting there excluding the suffix .c or whatever. */
4176 const char *input_filename
;
4177 static int input_file_number
;
4178 size_t input_filename_length
;
4179 static int basename_length
;
4180 static int suffixed_basename_length
;
4181 static const char *input_basename
;
4182 static const char *input_suffix
;
4183 static struct stat input_stat
;
4184 static int input_stat_set
;
4186 /* The compiler used to process the current input file. */
4187 static struct compiler
*input_file_compiler
;
4189 /* These are variables used within do_spec and do_spec_1. */
4191 /* Nonzero if an arg has been started and not yet terminated
4192 (with space, tab or newline). */
4193 static int arg_going
;
4195 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4196 is a temporary file name. */
4197 static int delete_this_arg
;
4199 /* Nonzero means %w has been seen; the next arg to be terminated
4200 is the output file name of this compilation. */
4201 static int this_is_output_file
;
4203 /* Nonzero means %s has been seen; the next arg to be terminated
4204 is the name of a library file and we should try the standard
4205 search dirs for it. */
4206 static int this_is_library_file
;
4208 /* Nonzero means that the input of this command is coming from a pipe. */
4209 static int input_from_pipe
;
4211 /* Nonnull means substitute this for any suffix when outputting a switches
4213 static const char *suffix_subst
;
4215 /* Process the spec SPEC and run the commands specified therein.
4216 Returns 0 if the spec is successfully processed; -1 if failed. */
4224 value
= do_spec_2 (spec
);
4226 /* Force out any unfinished command.
4227 If -pipe, this forces out the last command if it ended in `|'. */
4230 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4233 set_collect_gcc_options ();
4235 if (argbuf_index
> 0)
4248 delete_this_arg
= 0;
4249 this_is_output_file
= 0;
4250 this_is_library_file
= 0;
4251 input_from_pipe
= 0;
4252 suffix_subst
= NULL
;
4254 return do_spec_1 (spec
, 0, NULL
);
4258 /* Process the given spec string and add any new options to the end
4259 of the switches/n_switches array. */
4266 do_spec_1 (" ", 0, NULL
);
4268 if (argbuf_index
> 0)
4273 n_switches
+= argbuf_index
;
4274 switches
= xrealloc (switches
,
4275 sizeof (struct switchstr
) * (n_switches
+ 1));
4277 switches
[n_switches
] = switches
[first
];
4278 for (i
= 0; i
< argbuf_index
; i
++)
4280 struct switchstr
*sw
;
4282 /* Each switch should start with '-'. */
4283 if (argbuf
[i
][0] != '-')
4286 sw
= &switches
[i
+ first
];
4287 sw
->part1
= &argbuf
[i
][1];
4289 sw
->live_cond
= SWITCH_OK
;
4296 /* Process the sub-spec SPEC as a portion of a larger spec.
4297 This is like processing a whole spec except that we do
4298 not initialize at the beginning and we do not supply a
4299 newline by default at the end.
4300 INSWITCH nonzero means don't process %-sequences in SPEC;
4301 in this case, % is treated as an ordinary character.
4302 This is used while substituting switches.
4303 INSWITCH nonzero also causes SPC not to terminate an argument.
4305 Value is zero unless a line was finished
4306 and the command on that line reported an error. */
4309 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4312 const char *soft_matched_part
;
4314 const char *p
= spec
;
4321 /* If substituting a switch, treat all chars like letters.
4322 Otherwise, NL, SPC, TAB and % are special. */
4323 switch (inswitch
? 'a' : c
)
4326 /* End of line: finish any pending argument,
4327 then run the pending command if one has been started. */
4330 obstack_1grow (&obstack
, 0);
4331 string
= obstack_finish (&obstack
);
4332 if (this_is_library_file
)
4333 string
= find_file (string
);
4334 store_arg (string
, delete_this_arg
, this_is_output_file
);
4335 if (this_is_output_file
)
4336 outfiles
[input_file_number
] = string
;
4340 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4342 /* A `|' before the newline means use a pipe here,
4343 but only if -pipe was specified.
4344 Otherwise, execute now and don't pass the `|' as an arg. */
4347 input_from_pipe
= 1;
4354 set_collect_gcc_options ();
4356 if (argbuf_index
> 0)
4362 /* Reinitialize for a new command, and for a new argument. */
4365 delete_this_arg
= 0;
4366 this_is_output_file
= 0;
4367 this_is_library_file
= 0;
4368 input_from_pipe
= 0;
4372 /* End any pending argument. */
4375 obstack_1grow (&obstack
, 0);
4376 string
= obstack_finish (&obstack
);
4377 if (this_is_library_file
)
4378 string
= find_file (string
);
4379 store_arg (string
, delete_this_arg
, this_is_output_file
);
4380 if (this_is_output_file
)
4381 outfiles
[input_file_number
] = string
;
4385 obstack_1grow (&obstack
, c
);
4391 /* Space or tab ends an argument if one is pending. */
4394 obstack_1grow (&obstack
, 0);
4395 string
= obstack_finish (&obstack
);
4396 if (this_is_library_file
)
4397 string
= find_file (string
);
4398 store_arg (string
, delete_this_arg
, this_is_output_file
);
4399 if (this_is_output_file
)
4400 outfiles
[input_file_number
] = string
;
4402 /* Reinitialize for a new argument. */
4404 delete_this_arg
= 0;
4405 this_is_output_file
= 0;
4406 this_is_library_file
= 0;
4413 fatal ("invalid specification! Bug in cc");
4416 obstack_grow (&obstack
, input_basename
, basename_length
);
4421 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4426 delete_this_arg
= 2;
4429 /* Dump out the directories specified with LIBRARY_PATH,
4430 followed by the absolute directories
4431 that we search for startfiles. */
4434 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4435 size_t bufsize
= 100;
4436 char *buffer
= (char *) xmalloc (bufsize
);
4439 for (; pl
; pl
= pl
->next
)
4441 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4442 /* Used on systems which record the specified -L dirs
4443 and use them to search for dynamic linking. */
4444 /* Relative directories always come from -B,
4445 and it is better not to use them for searching
4446 at run time. In particular, stage1 loses. */
4447 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4450 /* Try subdirectory if there is one. */
4451 if (multilib_dir
!= NULL
4452 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4454 const char *multi_dir
;
4456 multi_dir
= pl
->os_multilib
? multilib_os_dir
4458 if (machine_suffix
&& multilib_dir
)
4460 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4462 bufsize
= (strlen (pl
->prefix
)
4463 + strlen (machine_suffix
)) * 2 + 1;
4464 buffer
= (char *) xrealloc (buffer
, bufsize
);
4465 strcpy (buffer
, pl
->prefix
);
4466 strcat (buffer
, machine_suffix
);
4467 if (is_directory (buffer
, multilib_dir
, 1))
4469 do_spec_1 ("-L", 0, NULL
);
4470 #ifdef SPACE_AFTER_L_OPTION
4471 do_spec_1 (" ", 0, NULL
);
4473 do_spec_1 (buffer
, 1, NULL
);
4474 do_spec_1 (multilib_dir
, 1, NULL
);
4475 /* Make this a separate argument. */
4476 do_spec_1 (" ", 0, NULL
);
4479 if (!pl
->require_machine_suffix
)
4481 if (is_directory (pl
->prefix
, multi_dir
, 1))
4483 do_spec_1 ("-L", 0, NULL
);
4484 #ifdef SPACE_AFTER_L_OPTION
4485 do_spec_1 (" ", 0, NULL
);
4487 do_spec_1 (pl
->prefix
, 1, NULL
);
4488 do_spec_1 (multi_dir
, 1, NULL
);
4489 /* Make this a separate argument. */
4490 do_spec_1 (" ", 0, NULL
);
4496 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4498 do_spec_1 ("-L", 0, NULL
);
4499 #ifdef SPACE_AFTER_L_OPTION
4500 do_spec_1 (" ", 0, NULL
);
4502 do_spec_1 (pl
->prefix
, 1, NULL
);
4503 /* Remove slash from machine_suffix. */
4504 if (strlen (machine_suffix
) >= bufsize
)
4505 bufsize
= strlen (machine_suffix
) * 2 + 1;
4506 buffer
= (char *) xrealloc (buffer
, bufsize
);
4507 strcpy (buffer
, machine_suffix
);
4508 idx
= strlen (buffer
);
4509 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4510 buffer
[idx
- 1] = 0;
4511 do_spec_1 (buffer
, 1, NULL
);
4512 /* Make this a separate argument. */
4513 do_spec_1 (" ", 0, NULL
);
4516 if (!pl
->require_machine_suffix
)
4518 if (is_directory (pl
->prefix
, "", 1))
4520 do_spec_1 ("-L", 0, NULL
);
4521 #ifdef SPACE_AFTER_L_OPTION
4522 do_spec_1 (" ", 0, NULL
);
4524 /* Remove slash from pl->prefix. */
4525 if (strlen (pl
->prefix
) >= bufsize
)
4526 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4527 buffer
= (char *) xrealloc (buffer
, bufsize
);
4528 strcpy (buffer
, pl
->prefix
);
4529 idx
= strlen (buffer
);
4530 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4531 buffer
[idx
- 1] = 0;
4532 do_spec_1 (buffer
, 1, NULL
);
4533 /* Make this a separate argument. */
4534 do_spec_1 (" ", 0, NULL
);
4543 /* %efoo means report an error with `foo' as error message
4544 and don't execute any more commands for this file. */
4548 while (*p
!= 0 && *p
!= '\n')
4550 buf
= (char *) alloca (p
- q
+ 1);
4551 strncpy (buf
, q
, p
- q
);
4558 /* %nfoo means report a notice with `foo' on stderr. */
4562 while (*p
!= 0 && *p
!= '\n')
4564 buf
= (char *) alloca (p
- q
+ 1);
4565 strncpy (buf
, q
, p
- q
);
4567 notice ("%s\n", buf
);
4577 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4578 defined, and it is not a directory, and it is
4579 writable, use it. Otherwise, treat this like any
4580 other temporary file. */
4582 if ((!save_temps_flag
)
4583 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4584 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4586 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4587 strlen (HOST_BIT_BUCKET
));
4588 delete_this_arg
= 0;
4593 goto create_temp_file
;
4597 obstack_1grow (&obstack
, '-');
4598 delete_this_arg
= 0;
4601 /* consume suffix */
4602 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4604 if (p
[0] == '%' && p
[1] == 'O')
4609 goto create_temp_file
;
4613 /* consume suffix */
4614 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4616 if (p
[0] == '%' && p
[1] == 'O')
4621 goto create_temp_file
;
4627 struct temp_name
*t
;
4629 const char *suffix
= p
;
4630 char *saved_suffix
= NULL
;
4632 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4634 suffix_length
= p
- suffix
;
4635 if (p
[0] == '%' && p
[1] == 'O')
4638 /* We don't support extra suffix characters after %O. */
4639 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4641 if (suffix_length
== 0)
4642 suffix
= TARGET_OBJECT_SUFFIX
;
4646 = (char *) xmalloc (suffix_length
4647 + strlen (TARGET_OBJECT_SUFFIX
));
4648 strncpy (saved_suffix
, suffix
, suffix_length
);
4649 strcpy (saved_suffix
+ suffix_length
,
4650 TARGET_OBJECT_SUFFIX
);
4652 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4655 /* If the input_filename has the same suffix specified
4656 for the %g, %u, or %U, and -save-temps is specified,
4657 we could end up using that file as an intermediate
4658 thus clobbering the user's source file (.e.g.,
4659 gcc -save-temps foo.s would clobber foo.s with the
4660 output of cpp0). So check for this condition and
4661 generate a temp file as the intermediate. */
4663 if (save_temps_flag
)
4665 temp_filename_length
= basename_length
+ suffix_length
;
4666 temp_filename
= alloca (temp_filename_length
+ 1);
4667 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4668 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4670 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4671 if (strcmp (temp_filename
, input_filename
) != 0)
4673 struct stat st_temp
;
4675 /* Note, set_input() resets input_stat_set to 0. */
4676 if (input_stat_set
== 0)
4678 input_stat_set
= stat (input_filename
, &input_stat
);
4679 if (input_stat_set
>= 0)
4683 /* If we have the stat for the input_filename
4684 and we can do the stat for the temp_filename
4685 then the they could still refer to the same
4686 file if st_dev/st_ino's are the same. */
4688 if (input_stat_set
!= 1
4689 || stat (temp_filename
, &st_temp
) < 0
4690 || input_stat
.st_dev
!= st_temp
.st_dev
4691 || input_stat
.st_ino
!= st_temp
.st_ino
)
4693 temp_filename
= save_string (temp_filename
,
4694 temp_filename_length
+ 1);
4695 obstack_grow (&obstack
, temp_filename
,
4696 temp_filename_length
);
4698 delete_this_arg
= 0;
4704 /* See if we already have an association of %g/%u/%U and
4706 for (t
= temp_names
; t
; t
= t
->next
)
4707 if (t
->length
== suffix_length
4708 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4709 && t
->unique
== (c
== 'u' || c
== 'j'))
4712 /* Make a new association if needed. %u and %j
4714 if (t
== 0 || c
== 'u' || c
== 'j')
4718 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4719 t
->next
= temp_names
;
4722 t
->length
= suffix_length
;
4725 t
->suffix
= saved_suffix
;
4726 saved_suffix
= NULL
;
4729 t
->suffix
= save_string (suffix
, suffix_length
);
4730 t
->unique
= (c
== 'u' || c
== 'j');
4731 temp_filename
= make_temp_file (t
->suffix
);
4732 temp_filename_length
= strlen (temp_filename
);
4733 t
->filename
= temp_filename
;
4734 t
->filename_length
= temp_filename_length
;
4738 free (saved_suffix
);
4740 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4741 delete_this_arg
= 1;
4747 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4753 struct prefix_list
*pl
= include_prefixes
.plist
;
4755 if (gcc_exec_prefix
)
4757 do_spec_1 ("-iprefix", 1, NULL
);
4758 /* Make this a separate argument. */
4759 do_spec_1 (" ", 0, NULL
);
4760 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4761 do_spec_1 (" ", 0, NULL
);
4764 if (target_system_root_changed
)
4766 do_spec_1 ("-isysroot", 1, NULL
);
4767 /* Make this a separate argument. */
4768 do_spec_1 (" ", 0, NULL
);
4769 do_spec_1 (target_system_root
, 1, NULL
);
4770 do_spec_1 (" ", 0, NULL
);
4773 for (; pl
; pl
= pl
->next
)
4775 do_spec_1 ("-isystem", 1, NULL
);
4776 /* Make this a separate argument. */
4777 do_spec_1 (" ", 0, NULL
);
4778 do_spec_1 (pl
->prefix
, 1, NULL
);
4779 do_spec_1 (" ", 0, NULL
);
4786 int max
= n_infiles
;
4787 max
+= lang_specific_extra_outfiles
;
4789 for (i
= 0; i
< max
; i
++)
4791 store_arg (outfiles
[i
], 0, 0);
4796 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4801 this_is_library_file
= 1;
4805 outfiles
[input_file_number
] = NULL
;
4809 this_is_output_file
= 1;
4814 int cur_index
= argbuf_index
;
4815 /* Handle the {...} following the %W. */
4818 p
= handle_braces (p
+ 1);
4821 /* End any pending argument. */
4824 obstack_1grow (&obstack
, 0);
4825 string
= obstack_finish (&obstack
);
4826 if (this_is_library_file
)
4827 string
= find_file (string
);
4828 store_arg (string
, delete_this_arg
, this_is_output_file
);
4829 if (this_is_output_file
)
4830 outfiles
[input_file_number
] = string
;
4833 /* If any args were output, mark the last one for deletion
4835 if (argbuf_index
!= cur_index
)
4836 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4840 /* %x{OPTION} records OPTION for %X to output. */
4846 /* Skip past the option value and make a copy. */
4851 string
= save_string (p1
+ 1, p
- p1
- 2);
4853 /* See if we already recorded this option. */
4854 for (i
= 0; i
< n_linker_options
; i
++)
4855 if (! strcmp (string
, linker_options
[i
]))
4861 /* This option is new; add it. */
4862 add_linker_option (string
, strlen (string
));
4866 /* Dump out the options accumulated previously using %x. */
4868 for (i
= 0; i
< n_linker_options
; i
++)
4870 do_spec_1 (linker_options
[i
], 1, NULL
);
4871 /* Make each accumulated option a separate argument. */
4872 do_spec_1 (" ", 0, NULL
);
4876 /* Dump out the options accumulated previously using -Wa,. */
4878 for (i
= 0; i
< n_assembler_options
; i
++)
4880 do_spec_1 (assembler_options
[i
], 1, NULL
);
4881 /* Make each accumulated option a separate argument. */
4882 do_spec_1 (" ", 0, NULL
);
4886 /* Dump out the options accumulated previously using -Wp,. */
4888 for (i
= 0; i
< n_preprocessor_options
; i
++)
4890 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4891 /* Make each accumulated option a separate argument. */
4892 do_spec_1 (" ", 0, NULL
);
4896 /* Here are digits and numbers that just process
4897 a certain constant string as a spec. */
4900 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4906 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4912 value
= do_spec_1 (asm_spec
, 0, NULL
);
4918 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4925 const char *const spec
4926 = (input_file_compiler
->cpp_spec
4927 ? input_file_compiler
->cpp_spec
4929 value
= do_spec_1 (spec
, 0, NULL
);
4936 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4942 value
= do_spec_1 (link_spec
, 0, NULL
);
4948 value
= do_spec_1 (lib_spec
, 0, NULL
);
4954 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4960 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4966 len
= strlen (multilib_dir
);
4967 obstack_blank (&obstack
, len
+ 1);
4968 p
= obstack_next_free (&obstack
) - (len
+ 1);
4971 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4972 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4978 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4982 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4986 if (! strncmp (y
, "-D", 2))
4987 /* Copy the whole option. */
4988 while (*y
&& *y
!= ' ' && *y
!= '\t')
4990 else if (*y
== ' ' || *y
== '\t')
4991 /* Copy whitespace to the result. */
4993 /* Don't copy other options. */
5000 value
= do_spec_1 (buf
, 0, NULL
);
5008 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
5012 /* Copy all of CPP_PREDEFINES into BUF,
5013 but force them all into the reserved name space if they
5014 aren't already there. The reserved name space is all
5015 identifiers beginning with two underscores or with one
5016 underscore and a capital letter. We do the forcing by
5017 adding up to two underscores to the beginning and end
5018 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
5023 if (! strncmp (y
, "-D", 2))
5032 && ! ISUPPER ((unsigned char) *(y
+ 1))))
5034 /* Stick __ at front of macro name. */
5038 /* Arrange to stick __ at the end as well. */
5042 /* Copy the macro name. */
5043 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
5056 /* Copy the value given, if any. */
5057 while (*y
&& *y
!= ' ' && *y
!= '\t')
5060 else if (*y
== ' ' || *y
== '\t')
5061 /* Copy whitespace to the result. */
5063 /* Don't copy -A options */
5069 /* Copy all of CPP_PREDEFINES into BUF,
5070 but put __ after every -D. */
5074 if (! strncmp (y
, "-D", 2))
5080 && ! ISUPPER ((unsigned char) *(y
+ 1))))
5082 /* Stick -D__ at front of macro name. */
5089 /* Copy the macro name. */
5090 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
5093 /* Copy the value given, if any. */
5094 while (*y
&& *y
!= ' ' && *y
!= '\t')
5099 /* Do not copy this macro - we have just done it before */
5100 while (*y
&& *y
!= ' ' && *y
!= '\t')
5104 else if (*y
== ' ' || *y
== '\t')
5105 /* Copy whitespace to the result. */
5107 /* Don't copy -A options. */
5113 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
5117 if (! strncmp (y
, "-A", 2))
5118 /* Copy the whole option. */
5119 while (*y
&& *y
!= ' ' && *y
!= '\t')
5121 else if (*y
== ' ' || *y
== '\t')
5122 /* Copy whitespace to the result. */
5124 /* Don't copy other options. */
5131 value
= do_spec_1 (buf
, 0, NULL
);
5138 /* We assume there is a directory
5139 separator at the end of this string. */
5140 if (target_system_root
)
5141 obstack_grow (&obstack
, target_system_root
,
5142 strlen (target_system_root
));
5146 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5151 /* Here we define characters other than letters and digits. */
5154 p
= handle_braces (p
);
5160 p
= handle_spec_function (p
);
5166 obstack_1grow (&obstack
, '%');
5173 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5175 suffix_subst
= save_string (p
- 1, len
+ 1);
5180 /* Henceforth ignore the option(s) matching the pattern
5185 int have_wildcard
= 0;
5188 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5191 if (p
[len
-1] == '*')
5194 for (i
= 0; i
< n_switches
; i
++)
5195 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5196 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5198 switches
[i
].live_cond
= SWITCH_IGNORE
;
5199 switches
[i
].validated
= 1;
5207 if (soft_matched_part
)
5209 do_spec_1 (soft_matched_part
, 1, NULL
);
5210 do_spec_1 (" ", 0, NULL
);
5213 /* Catch the case where a spec string contains something like
5214 '%{foo:%*}'. ie there is no * in the pattern on the left
5215 hand side of the :. */
5216 error ("spec failure: '%%*' has not been initialized by pattern match");
5219 /* Process a string found as the value of a spec given by name.
5220 This feature allows individual machine descriptions
5221 to add and use their own specs.
5222 %[...] modifies -D options the way %P does;
5223 %(...) uses the spec unmodified. */
5225 error ("warning: use of obsolete %%[ operator in specs");
5228 const char *name
= p
;
5229 struct spec_list
*sl
;
5232 /* The string after the S/P is the name of a spec that is to be
5234 while (*p
&& *p
!= ')' && *p
!= ']')
5237 /* See if it's in the list. */
5238 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5239 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5241 name
= *(sl
->ptr_spec
);
5243 notice ("Processing spec %c%s%c, which is '%s'\n",
5244 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5253 value
= do_spec_1 (name
, 0, NULL
);
5259 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5261 const char *y
= name
;
5264 /* Copy all of NAME into BUF, but put __ after
5265 every -D and at the end of each arg. */
5268 if (! strncmp (y
, "-D", 2))
5279 && (*y
== ' ' || *y
== '\t' || *y
== '='
5280 || *y
== '}' || *y
== 0))
5293 value
= do_spec_1 (buf
, 0, NULL
);
5299 /* Discard the closing paren or bracket. */
5307 int c1
= *p
++; /* Select first or second version number. */
5308 const char *v
= compiler_version
;
5310 static const char zeroc
= '0';
5312 /* The format of the version string is
5313 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5315 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5316 while (! ISDIGIT (*v
))
5318 if (v
> compiler_version
&& v
[-1] != '-')
5321 /* If desired, advance to second version number. */
5324 /* Set V after the first period. */
5325 while (ISDIGIT (*v
))
5332 /* If desired, advance to third version number.
5333 But don't complain if it's not present */
5336 /* Set V after the second period. */
5337 while (ISDIGIT (*v
))
5339 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5345 /* Set Q at the next period or at the end. */
5347 while (ISDIGIT (*q
))
5349 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5353 /* Put that part into the command. */
5354 obstack_grow (&obstack
, v
, q
- v
);
5356 /* Default to "0" */
5357 obstack_grow (&obstack
, &zeroc
, 1);
5363 error ("spec failure: unrecognized spec option '%c'", c
);
5369 /* Backslash: treat next character as ordinary. */
5374 /* Ordinary character: put it into the current argument. */
5375 obstack_1grow (&obstack
, c
);
5379 /* End of string. If we are processing a spec function, we need to
5380 end any pending argument. */
5381 if (processing_spec_function
&& arg_going
)
5383 obstack_1grow (&obstack
, 0);
5384 string
= obstack_finish (&obstack
);
5385 if (this_is_library_file
)
5386 string
= find_file (string
);
5387 store_arg (string
, delete_this_arg
, this_is_output_file
);
5388 if (this_is_output_file
)
5389 outfiles
[input_file_number
] = string
;
5396 /* Look up a spec function. */
5398 static const struct spec_function
*
5399 lookup_spec_function (name
)
5402 static const struct spec_function
* const spec_function_tables
[] =
5404 static_spec_functions
,
5405 lang_specific_spec_functions
,
5407 const struct spec_function
*sf
;
5410 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5412 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5413 if (strcmp (sf
->name
, name
) == 0)
5420 /* Evaluate a spec function. */
5423 eval_spec_function (func
, args
)
5424 const char *func
, *args
;
5426 const struct spec_function
*sf
;
5427 const char *funcval
;
5429 /* Saved spec processing context. */
5430 int save_argbuf_index
;
5431 int save_argbuf_length
;
5432 const char **save_argbuf
;
5435 int save_delete_this_arg
;
5436 int save_this_is_output_file
;
5437 int save_this_is_library_file
;
5438 int save_input_from_pipe
;
5439 const char *save_suffix_subst
;
5442 sf
= lookup_spec_function (func
);
5444 fatal ("unknown spec function `%s'", func
);
5446 /* Push the spec processing context. */
5447 save_argbuf_index
= argbuf_index
;
5448 save_argbuf_length
= argbuf_length
;
5449 save_argbuf
= argbuf
;
5451 save_arg_going
= arg_going
;
5452 save_delete_this_arg
= delete_this_arg
;
5453 save_this_is_output_file
= this_is_output_file
;
5454 save_this_is_library_file
= this_is_library_file
;
5455 save_input_from_pipe
= input_from_pipe
;
5456 save_suffix_subst
= suffix_subst
;
5458 /* Create a new spec processing context, and build the function
5462 if (do_spec_2 (args
) < 0)
5463 fatal ("error in args to spec function `%s'", func
);
5465 /* argbuf_index is an index for the next argument to be inserted, and
5466 so contains the count of the args already inserted. */
5468 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5470 /* Pop the spec processing context. */
5471 argbuf_index
= save_argbuf_index
;
5472 argbuf_length
= save_argbuf_length
;
5474 argbuf
= save_argbuf
;
5476 arg_going
= save_arg_going
;
5477 delete_this_arg
= save_delete_this_arg
;
5478 this_is_output_file
= save_this_is_output_file
;
5479 this_is_library_file
= save_this_is_library_file
;
5480 input_from_pipe
= save_input_from_pipe
;
5481 suffix_subst
= save_suffix_subst
;
5486 /* Handle a spec function call of the form:
5490 ARGS is processed as a spec in a separate context and split into an
5491 argument vector in the normal fashion. The function returns a string
5492 containing a spec which we then process in the caller's context, or
5493 NULL if no processing is required. */
5496 handle_spec_function (p
)
5500 const char *endp
, *funcval
;
5503 processing_spec_function
++;
5505 /* Get the function name. */
5506 for (endp
= p
; *endp
!= '\0'; endp
++)
5508 if (*endp
== '(') /* ) */
5510 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5511 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5512 fatal ("malformed spec function name");
5514 if (*endp
!= '(') /* ) */
5515 fatal ("no arguments for spec function");
5516 func
= save_string (p
, endp
- p
);
5519 /* Get the arguments. */
5520 for (count
= 0; *endp
!= '\0'; endp
++)
5529 else if (*endp
== '(') /* ) */
5534 fatal ("malformed spec function arguments");
5535 args
= save_string (p
, endp
- p
);
5538 /* p now points to just past the end of the spec function expression. */
5540 funcval
= eval_spec_function (func
, args
);
5541 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5547 processing_spec_function
--;
5552 /* Inline subroutine of handle_braces. Returns true if the current
5553 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5555 input_suffix_matches (atom
, end_atom
)
5557 const char *end_atom
;
5559 return (input_suffix
5560 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5561 && input_suffix
[end_atom
- atom
] == '\0');
5564 /* Inline subroutine of handle_braces. Returns true if a switch
5565 matching the atom bracketed by ATOM and END_ATOM appeared on the
5568 switch_matches (atom
, end_atom
, starred
)
5570 const char *end_atom
;
5574 int len
= end_atom
- atom
;
5575 int plen
= starred
? len
: -1;
5577 for (i
= 0; i
< n_switches
; i
++)
5578 if (!strncmp (switches
[i
].part1
, atom
, len
)
5579 && (starred
|| switches
[i
].part1
[len
] == '\0')
5580 && check_live_switch (i
, plen
))
5586 /* Inline subroutine of handle_braces. Mark all of the switches which
5587 match ATOM (extends to END_ATOM; STARRED indicates whether there
5588 was a star after the atom) for later processing. */
5590 mark_matching_switches (atom
, end_atom
, starred
)
5592 const char *end_atom
;
5596 int len
= end_atom
- atom
;
5597 int plen
= starred
? len
: -1;
5599 for (i
= 0; i
< n_switches
; i
++)
5600 if (!strncmp (switches
[i
].part1
, atom
, len
)
5601 && (starred
|| switches
[i
].part1
[len
] == '\0')
5602 && check_live_switch (i
, plen
))
5603 switches
[i
].ordering
= 1;
5606 /* Inline subroutine of handle_braces. Process all the currently
5607 marked switches through give_switch, and clear the marks. */
5609 process_marked_switches ()
5613 for (i
= 0; i
< n_switches
; i
++)
5614 if (switches
[i
].ordering
== 1)
5616 switches
[i
].ordering
= 0;
5621 /* Handle a %{ ... } construct. P points just inside the leading {.
5622 Returns a pointer one past the end of the brace block, or 0
5623 if we call do_spec_1 and that returns -1. */
5629 const char *atom
, *end_atom
;
5630 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5637 bool a_must_be_last
= false;
5638 bool ordered_set
= false;
5639 bool disjunct_set
= false;
5640 bool disj_matched
= false;
5641 bool disj_starred
= true;
5642 bool n_way_choice
= false;
5643 bool n_way_matched
= false;
5645 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5652 /* Scan one "atom" (S in the description above of %{}, possibly
5653 with !, ., or * modifiers). */
5654 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5658 p
++, a_is_negated
= true;
5662 p
++, a_is_suffix
= true;
5665 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5666 || *p
== ',' || *p
== '.' || *p
== '@')
5671 p
++, a_is_starred
= 1;
5674 if (*p
== '&' || *p
== '}')
5676 /* Substitute the switch(es) indicated by the current atom. */
5678 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5679 || atom
== end_atom
)
5682 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5685 process_marked_switches ();
5687 else if (*p
== '|' || *p
== ':')
5689 /* Substitute some text if the current atom appears as a switch
5691 disjunct_set
= true;
5695 if (atom
== end_atom
)
5697 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5698 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5701 /* An empty term may appear as the last choice of an
5702 N-way choice set; it means "otherwise". */
5703 a_must_be_last
= true;
5704 disj_matched
= !n_way_matched
;
5705 disj_starred
= false;
5709 if (a_is_suffix
&& a_is_starred
)
5713 disj_starred
= false;
5715 /* Don't bother testing this atom if we already have a
5717 if (!disj_matched
&& !n_way_matched
)
5720 a_matched
= input_suffix_matches (atom
, end_atom
);
5722 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5724 if (a_matched
!= a_is_negated
)
5726 disj_matched
= true;
5728 d_end_atom
= end_atom
;
5735 /* Found the body, that is, the text to substitute if the
5736 current disjunction matches. */
5737 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5738 disj_matched
&& !n_way_matched
);
5742 /* If we have an N-way choice, reset state for the next
5746 n_way_choice
= true;
5747 n_way_matched
|= disj_matched
;
5748 disj_matched
= false;
5749 disj_starred
= true;
5750 d_atom
= d_end_atom
= NULL
;
5757 while (*p
++ != '}');
5764 /* Subroutine of handle_braces. Scan and process a brace substitution body
5765 (X in the description of %{} syntax). P points one past the colon;
5766 ATOM and END_ATOM bracket the first atom which was found to be true
5767 (present) in the current disjunction; STARRED indicates whether all
5768 the atoms in the current disjunction were starred (for syntax validation);
5769 MATCHED indicates whether the disjunction matched or not, and therefore
5770 whether or not the body is to be processed through do_spec_1 or just
5771 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5775 process_brace_body (p
, atom
, end_atom
, starred
, matched
)
5778 const char *end_atom
;
5782 const char *body
, *end_body
;
5783 unsigned int nesting_level
;
5784 bool have_subst
= false;
5786 /* Locate the closing } or ;, honoring nested braces.
5787 Trim trailing whitespace. */
5796 if (!--nesting_level
)
5799 else if (*p
== ';' && nesting_level
== 1)
5801 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5803 else if (*p
== '\0')
5809 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5812 if (have_subst
&& !starred
)
5817 /* Copy the substitution body to permanent storage and execute it.
5818 If have_subst is false, this is a simple matter of running the
5819 body through do_spec_1... */
5820 char *string
= save_string (body
, end_body
- body
);
5823 if (do_spec_1 (string
, 0, NULL
) < 0)
5828 /* ... but if have_subst is true, we have to process the
5829 body once for each matching switch, with %* set to the
5830 variant part of the switch. */
5831 unsigned int hard_match_len
= end_atom
- atom
;
5834 for (i
= 0; i
< n_switches
; i
++)
5835 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5836 && check_live_switch (i
, hard_match_len
))
5838 if (do_spec_1 (string
, 0,
5839 &switches
[i
].part1
[hard_match_len
]) < 0)
5841 /* Pass any arguments this switch has. */
5843 suffix_subst
= NULL
;
5851 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5852 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5853 spec, or -1 if either exact match or %* is used.
5855 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5856 whose value does not begin with "no-" is obsoleted by the same value
5857 with the "no-", similarly for a switch with the "no-" prefix. */
5860 check_live_switch (switchnum
, prefix_length
)
5864 const char *name
= switches
[switchnum
].part1
;
5867 /* In the common case of {<at-most-one-letter>*}, a negating
5868 switch would always match, so ignore that case. We will just
5869 send the conflicting switches to the compiler phase. */
5870 if (prefix_length
>= 0 && prefix_length
<= 1)
5873 /* If we already processed this switch and determined if it was
5874 live or not, return our past determination. */
5875 if (switches
[switchnum
].live_cond
!= 0)
5876 return switches
[switchnum
].live_cond
> 0;
5878 /* Now search for duplicate in a manner that depends on the name. */
5882 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5883 if (switches
[i
].part1
[0] == 'O')
5885 switches
[switchnum
].validated
= 1;
5886 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5891 case 'W': case 'f': case 'm':
5892 if (! strncmp (name
+ 1, "no-", 3))
5894 /* We have Xno-YYY, search for XYYY. */
5895 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5896 if (switches
[i
].part1
[0] == name
[0]
5897 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5899 switches
[switchnum
].validated
= 1;
5900 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5906 /* We have XYYY, search for Xno-YYY. */
5907 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5908 if (switches
[i
].part1
[0] == name
[0]
5909 && switches
[i
].part1
[1] == 'n'
5910 && switches
[i
].part1
[2] == 'o'
5911 && switches
[i
].part1
[3] == '-'
5912 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5914 switches
[switchnum
].validated
= 1;
5915 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5922 /* Otherwise the switch is live. */
5923 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5927 /* Pass a switch to the current accumulating command
5928 in the same form that we received it.
5929 SWITCHNUM identifies the switch; it is an index into
5930 the vector of switches gcc received, which is `switches'.
5931 This cannot fail since it never finishes a command line.
5933 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5936 give_switch (switchnum
, omit_first_word
)
5938 int omit_first_word
;
5940 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5943 if (!omit_first_word
)
5945 do_spec_1 ("-", 0, NULL
);
5946 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5949 if (switches
[switchnum
].args
!= 0)
5952 for (p
= switches
[switchnum
].args
; *p
; p
++)
5954 const char *arg
= *p
;
5956 do_spec_1 (" ", 0, NULL
);
5959 unsigned length
= strlen (arg
);
5962 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5963 if (arg
[length
] == '.')
5965 ((char *)arg
)[length
] = 0;
5969 do_spec_1 (arg
, 1, NULL
);
5971 ((char *)arg
)[length
] = '.';
5972 do_spec_1 (suffix_subst
, 1, NULL
);
5975 do_spec_1 (arg
, 1, NULL
);
5979 do_spec_1 (" ", 0, NULL
);
5980 switches
[switchnum
].validated
= 1;
5983 /* Search for a file named NAME trying various prefixes including the
5984 user's -B prefix and some standard ones.
5985 Return the absolute file name found. If nothing is found, return NAME. */
5993 /* Try multilib_dir if it is defined. */
5994 if (multilib_os_dir
!= NULL
)
5996 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5998 /* If we don't find it in the multi library dir, then fall
5999 through and look for it in the normal places. */
6000 if (newname
!= NULL
)
6004 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
6005 return newname
? newname
: name
;
6008 /* Determine whether a directory exists. If LINKER, return 0 for
6009 certain fixed names not needed by the linker. If not LINKER, it is
6010 only important to return 0 if the host machine has a small ARG_MAX
6014 is_directory (path1
, path2
, linker
)
6019 int len1
= strlen (path1
);
6020 int len2
= strlen (path2
);
6021 char *path
= (char *) alloca (3 + len1
+ len2
);
6025 #ifndef SMALL_ARG_MAX
6030 /* Construct the path from the two parts. Ensure the string ends with "/.".
6031 The resulting path will be a directory even if the given path is a
6033 memcpy (path
, path1
, len1
);
6034 memcpy (path
+ len1
, path2
, len2
);
6035 cp
= path
+ len1
+ len2
;
6036 if (!IS_DIR_SEPARATOR (cp
[-1]))
6037 *cp
++ = DIR_SEPARATOR
;
6041 /* Exclude directories that the linker is known to search. */
6044 && strcmp (path
, concat (dir_separator_str
, "lib",
6045 dir_separator_str
, ".", NULL
)) == 0)
6047 && strcmp (path
, concat (dir_separator_str
, "usr",
6048 dir_separator_str
, "lib",
6049 dir_separator_str
, ".", NULL
)) == 0)))
6052 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6055 /* Set up the various global variables to indicate that we're processing
6056 the input file named FILENAME. */
6059 set_input (filename
)
6060 const char *filename
;
6064 input_filename
= filename
;
6065 input_filename_length
= strlen (input_filename
);
6067 input_basename
= input_filename
;
6068 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6069 /* Skip drive name so 'x:foo' is handled properly. */
6070 if (input_basename
[1] == ':')
6071 input_basename
+= 2;
6073 for (p
= input_basename
; *p
; p
++)
6074 if (IS_DIR_SEPARATOR (*p
))
6075 input_basename
= p
+ 1;
6077 /* Find a suffix starting with the last period,
6078 and set basename_length to exclude that suffix. */
6079 basename_length
= strlen (input_basename
);
6080 suffixed_basename_length
= basename_length
;
6081 p
= input_basename
+ basename_length
;
6082 while (p
!= input_basename
&& *p
!= '.')
6084 if (*p
== '.' && p
!= input_basename
)
6086 basename_length
= p
- input_basename
;
6087 input_suffix
= p
+ 1;
6092 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6093 we will need to do a stat on the input_filename. The
6094 INPUT_STAT_SET signals that the stat is needed. */
6098 /* On fatal signals, delete all the temporary files. */
6101 fatal_error (signum
)
6104 signal (signum
, SIG_DFL
);
6105 delete_failure_queue ();
6106 delete_temp_files ();
6107 /* Get the same signal again, this time not handled,
6108 so its normal effect occurs. */
6109 kill (getpid (), signum
);
6112 extern int main
PARAMS ((int, const char *const *));
6117 const char *const *argv
;
6121 int linker_was_run
= 0;
6122 int num_linker_inputs
= 0;
6123 char *explicit_link_files
;
6126 struct user_specs
*uptr
;
6128 p
= argv
[0] + strlen (argv
[0]);
6129 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6133 xmalloc_set_program_name (programname
);
6135 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6136 /* Perform host dependent initialization when needed. */
6137 GCC_DRIVER_HOST_INITIALIZATION
;
6140 gcc_init_libintl ();
6142 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6143 signal (SIGINT
, fatal_error
);
6145 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6146 signal (SIGHUP
, fatal_error
);
6148 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6149 signal (SIGTERM
, fatal_error
);
6151 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6152 signal (SIGPIPE
, fatal_error
);
6155 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6156 receive the signal. A different setting is inheritable */
6157 signal (SIGCHLD
, SIG_DFL
);
6160 /* Allocate the argument vector. */
6163 obstack_init (&obstack
);
6165 /* Build multilib_select, et. al from the separate lines that make up each
6166 multilib selection. */
6168 const char *const *q
= multilib_raw
;
6171 obstack_init (&multilib_obstack
);
6172 while ((p
= *q
++) != (char *) 0)
6173 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6175 obstack_1grow (&multilib_obstack
, 0);
6176 multilib_select
= obstack_finish (&multilib_obstack
);
6178 q
= multilib_matches_raw
;
6179 while ((p
= *q
++) != (char *) 0)
6180 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6182 obstack_1grow (&multilib_obstack
, 0);
6183 multilib_matches
= obstack_finish (&multilib_obstack
);
6185 q
= multilib_exclusions_raw
;
6186 while ((p
= *q
++) != (char *) 0)
6187 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6189 obstack_1grow (&multilib_obstack
, 0);
6190 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6193 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6196 obstack_1grow (&multilib_obstack
, ' ');
6197 obstack_grow (&multilib_obstack
,
6198 multilib_defaults_raw
[i
],
6199 strlen (multilib_defaults_raw
[i
]));
6203 obstack_1grow (&multilib_obstack
, 0);
6204 multilib_defaults
= obstack_finish (&multilib_obstack
);
6207 /* Set up to remember the pathname of gcc and any options
6208 needed for collect. We use argv[0] instead of programname because
6209 we need the complete pathname. */
6210 obstack_init (&collect_obstack
);
6211 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6212 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6213 putenv (obstack_finish (&collect_obstack
));
6215 #ifdef INIT_ENVIRONMENT
6216 /* Set up any other necessary machine specific environment variables. */
6217 putenv (INIT_ENVIRONMENT
);
6220 /* Make a table of what switches there are (switches, n_switches).
6221 Make a table of specified input files (infiles, n_infiles).
6222 Decode switches that are handled locally. */
6224 process_command (argc
, argv
);
6226 /* Initialize the vector of specs to just the default.
6227 This means one element containing 0s, as a terminator. */
6229 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
6230 memcpy ((char *) compilers
, (char *) default_compilers
,
6231 sizeof default_compilers
);
6232 n_compilers
= n_default_compilers
;
6234 /* Read specs from a file if there is one. */
6236 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6237 spec_version
, dir_separator_str
, NULL
);
6238 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6240 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6241 /* Read the specs file unless it is a default one. */
6242 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6243 read_specs (specs_file
, TRUE
);
6247 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6248 for any override of as, ld and libraries. */
6249 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6250 + strlen (just_machine_suffix
)
6251 + sizeof ("specs"));
6253 strcpy (specs_file
, standard_exec_prefix
);
6254 strcat (specs_file
, just_machine_suffix
);
6255 strcat (specs_file
, "specs");
6256 if (access (specs_file
, R_OK
) == 0)
6257 read_specs (specs_file
, TRUE
);
6259 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6260 of the command line. */
6262 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6263 do_self_spec (driver_self_specs
[i
]);
6265 /* If not cross-compiling, look for executables in the standard
6267 if (*cross_compile
== '0')
6269 if (*md_exec_prefix
)
6271 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6272 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6276 /* Look for startfiles in the standard places. */
6277 if (*startfile_prefix_spec
!= 0
6278 && do_spec_2 (startfile_prefix_spec
) == 0
6279 && do_spec_1 (" ", 0, NULL
) == 0)
6282 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6283 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6284 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6286 /* We should eventually get rid of all these and stick to
6287 startfile_prefix_spec exclusively. */
6288 else if (*cross_compile
== '0' || target_system_root
)
6290 if (*md_exec_prefix
)
6291 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6292 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6294 if (*md_startfile_prefix
)
6295 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6296 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6298 if (*md_startfile_prefix_1
)
6299 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6300 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6302 /* If standard_startfile_prefix is relative, base it on
6303 standard_exec_prefix. This lets us move the installed tree
6304 as a unit. If GCC_EXEC_PREFIX is defined, base
6305 standard_startfile_prefix on that as well. */
6306 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
6307 add_sysrooted_prefix (&startfile_prefixes
,
6308 standard_startfile_prefix
, "BINUTILS",
6309 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6312 if (gcc_exec_prefix
)
6313 add_prefix (&startfile_prefixes
,
6314 concat (gcc_exec_prefix
, machine_suffix
,
6315 standard_startfile_prefix
, NULL
),
6316 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6317 add_prefix (&startfile_prefixes
,
6318 concat (standard_exec_prefix
,
6320 standard_startfile_prefix
, NULL
),
6321 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6324 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6325 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6326 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6327 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6328 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6329 add_prefix (&startfile_prefixes
, "./", NULL
,
6330 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6334 /* Process any user specified specs in the order given on the command
6336 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6338 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6340 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6343 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6344 if (gcc_exec_prefix
)
6345 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6346 spec_version
, dir_separator_str
, NULL
);
6348 /* Now we have the specs.
6349 Set the `valid' bits for switches that match anything in any spec. */
6351 validate_all_switches ();
6353 /* Now that we have the switches and the specs, set
6354 the subdirectory based on the options. */
6355 set_multilib_dir ();
6357 /* Warn about any switches that no pass was interested in. */
6359 for (i
= 0; (int) i
< n_switches
; i
++)
6360 if (! switches
[i
].validated
)
6361 error ("unrecognized option `-%s'", switches
[i
].part1
);
6363 /* Obey some of the options. */
6365 if (print_search_dirs
)
6367 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6368 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6369 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6373 if (print_file_name
)
6375 printf ("%s\n", find_file (print_file_name
));
6379 if (print_prog_name
)
6381 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6382 printf ("%s\n", (newname
? newname
: print_prog_name
));
6386 if (print_multi_lib
)
6388 print_multilib_info ();
6392 if (print_multi_directory
)
6394 if (multilib_dir
== NULL
)
6397 printf ("%s\n", multilib_dir
);
6401 if (print_multi_os_directory
)
6403 if (multilib_os_dir
== NULL
)
6406 printf ("%s\n", multilib_os_dir
);
6410 if (target_help_flag
)
6412 /* Print if any target specific options. */
6414 /* We do not exit here. Instead we have created a fake input file
6415 called 'target-dummy' which needs to be compiled, and we pass this
6416 on to the various sub-processes, along with the --target-help
6420 if (print_help_list
)
6426 printf (_("\nFor bug reporting instructions, please see:\n"));
6427 printf ("%s.\n", bug_report_url
);
6432 /* We do not exit here. Instead we have created a fake input file
6433 called 'help-dummy' which needs to be compiled, and we pass this
6434 on the various sub-processes, along with the --help switch. */
6442 notice ("Configured with: %s\n", configuration_arguments
);
6444 #ifdef THREAD_MODEL_SPEC
6445 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6446 but there's no point in doing all this processing just to get
6447 thread_model back. */
6448 obstack_init (&obstack
);
6449 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6450 obstack_1grow (&obstack
, '\0');
6451 thrmod
= obstack_finish (&obstack
);
6453 thrmod
= thread_model
;
6456 notice ("Thread model: %s\n", thrmod
);
6458 /* compiler_version is truncated at the first space when initialized
6459 from version string, so truncate version_string at the first space
6460 before comparing. */
6461 for (n
= 0; version_string
[n
]; n
++)
6462 if (version_string
[n
] == ' ')
6465 if (! strncmp (version_string
, compiler_version
, n
)
6466 && compiler_version
[n
] == 0)
6467 notice ("gcc version %s\n", version_string
);
6469 notice ("gcc driver version %s executing gcc version %s\n",
6470 version_string
, compiler_version
);
6476 if (n_infiles
== added_libraries
)
6477 fatal ("no input files");
6479 /* Make a place to record the compiler output file names
6480 that correspond to the input files. */
6483 i
+= lang_specific_extra_outfiles
;
6484 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6486 /* Record which files were specified explicitly as link input. */
6488 explicit_link_files
= xcalloc (1, n_infiles
);
6490 for (i
= 0; (int) i
< n_infiles
; i
++)
6492 int this_file_error
= 0;
6494 /* Tell do_spec what to substitute for %i. */
6496 input_file_number
= i
;
6497 set_input (infiles
[i
].name
);
6499 /* Use the same thing in %o, unless cp->spec says otherwise. */
6501 outfiles
[i
] = input_filename
;
6503 /* Figure out which compiler from the file's suffix. */
6506 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6507 infiles
[i
].language
);
6509 if (input_file_compiler
)
6511 /* Ok, we found an applicable compiler. Run its spec. */
6513 if (input_file_compiler
->spec
[0] == '#')
6515 error ("%s: %s compiler not installed on this system",
6516 input_filename
, &input_file_compiler
->spec
[1]);
6517 this_file_error
= 1;
6521 value
= do_spec (input_file_compiler
->spec
);
6523 this_file_error
= 1;
6527 /* If this file's name does not contain a recognized suffix,
6528 record it as explicit linker input. */
6531 explicit_link_files
[i
] = 1;
6533 /* Clear the delete-on-failure queue, deleting the files in it
6534 if this compilation failed. */
6536 if (this_file_error
)
6538 delete_failure_queue ();
6541 /* If this compilation succeeded, don't delete those files later. */
6542 clear_failure_queue ();
6545 /* Reset the output file name to the first input file name, for use
6546 with %b in LINK_SPEC on a target that prefers not to emit a.out
6549 set_input (infiles
[0].name
);
6551 if (error_count
== 0)
6553 /* Make sure INPUT_FILE_NUMBER points to first available open
6555 input_file_number
= n_infiles
;
6556 if (lang_specific_pre_link ())
6560 /* Determine if there are any linker input files. */
6561 num_linker_inputs
= 0;
6562 for (i
= 0; (int) i
< n_infiles
; i
++)
6563 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6564 num_linker_inputs
++;
6566 /* Run ld to link all the compiler output files. */
6568 if (num_linker_inputs
> 0 && error_count
== 0)
6570 int tmp
= execution_count
;
6572 /* We'll use ld if we can't find collect2. */
6573 if (! strcmp (linker_name_spec
, "collect2"))
6575 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6577 linker_name_spec
= "ld";
6579 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6581 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6582 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6584 value
= do_spec (link_command_spec
);
6587 linker_was_run
= (tmp
!= execution_count
);
6590 /* If options said don't run linker,
6591 complain about input files to be given to the linker. */
6593 if (! linker_was_run
&& error_count
== 0)
6594 for (i
= 0; (int) i
< n_infiles
; i
++)
6595 if (explicit_link_files
[i
])
6596 error ("%s: linker input file unused because linking not done",
6599 /* Delete some or all of the temporary files we made. */
6602 delete_failure_queue ();
6603 delete_temp_files ();
6605 if (print_help_list
)
6607 printf (("\nFor bug reporting instructions, please see:\n"));
6608 printf ("%s\n", bug_report_url
);
6611 return (signal_count
!= 0 ? 2
6612 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6616 /* Find the proper compilation spec for the file name NAME,
6617 whose length is LENGTH. LANGUAGE is the specified language,
6618 or 0 if this file is to be passed to the linker. */
6620 static struct compiler
*
6621 lookup_compiler (name
, length
, language
)
6624 const char *language
;
6626 struct compiler
*cp
;
6628 /* If this was specified by the user to be a linker input, indicate that. */
6629 if (language
!= 0 && language
[0] == '*')
6632 /* Otherwise, look for the language, if one is spec'd. */
6635 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6636 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6639 error ("language %s not recognized", language
);
6643 /* Look for a suffix. */
6644 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6646 if (/* The suffix `-' matches only the file name `-'. */
6647 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6648 || (strlen (cp
->suffix
) < length
6649 /* See if the suffix matches the end of NAME. */
6650 && !strcmp (cp
->suffix
,
6651 name
+ length
- strlen (cp
->suffix
))
6656 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6657 /* look again, but case-insensitively this time. */
6659 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6661 if (/* The suffix `-' matches only the file name `-'. */
6662 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6663 || (strlen (cp
->suffix
) < length
6664 /* See if the suffix matches the end of NAME. */
6665 && ((!strcmp (cp
->suffix
,
6666 name
+ length
- strlen (cp
->suffix
))
6667 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6668 && !strcasecmp (cp
->suffix
,
6669 name
+ length
- strlen (cp
->suffix
)))
6675 if (cp
>= compilers
)
6677 if (cp
->spec
[0] != '@')
6678 /* A non-alias entry: return it. */
6681 /* An alias entry maps a suffix to a language.
6682 Search for the language; pass 0 for NAME and LENGTH
6683 to avoid infinite recursion if language not found. */
6684 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6690 save_string (s
, len
)
6694 char *result
= xmalloc (len
+ 1);
6696 memcpy (result
, s
, len
);
6702 pfatal_with_name (name
)
6705 perror_with_name (name
);
6706 delete_temp_files ();
6711 perror_with_name (name
)
6714 error ("%s: %s", name
, xstrerror (errno
));
6718 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6719 const char *errmsg_fmt
;
6720 const char *errmsg_arg
;
6724 int save_errno
= errno
;
6726 /* Space for trailing '\0' is in %s. */
6727 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6728 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6734 pfatal_with_name (errmsg_fmt
);
6737 /* Output an error message and exit */
6742 fatal ("internal gcc abort");
6745 /* Output an error message and exit */
6748 fatal
VPARAMS ((const char *msgid
, ...))
6750 VA_OPEN (ap
, msgid
);
6751 VA_FIXEDARG (ap
, const char *, msgid
);
6753 fprintf (stderr
, "%s: ", programname
);
6754 vfprintf (stderr
, _(msgid
), ap
);
6756 fprintf (stderr
, "\n");
6757 delete_temp_files ();
6762 error
VPARAMS ((const char *msgid
, ...))
6764 VA_OPEN (ap
, msgid
);
6765 VA_FIXEDARG (ap
, const char *, msgid
);
6767 fprintf (stderr
, "%s: ", programname
);
6768 vfprintf (stderr
, _(msgid
), ap
);
6771 fprintf (stderr
, "\n");
6775 notice
VPARAMS ((const char *msgid
, ...))
6777 VA_OPEN (ap
, msgid
);
6778 VA_FIXEDARG (ap
, const char *, msgid
);
6780 vfprintf (stderr
, _(msgid
), ap
);
6785 validate_switches_from_spec (spec
)
6788 const char *p
= spec
;
6791 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6792 /* We have a switch spec. */
6793 p
= validate_switches (p
+ 1);
6797 validate_all_switches ()
6799 struct compiler
*comp
;
6800 struct spec_list
*spec
;
6802 for (comp
= compilers
; comp
->spec
; comp
++)
6803 validate_switches_from_spec (comp
->spec
);
6805 /* Look through the linked list of specs read from the specs file. */
6806 for (spec
= specs
; spec
; spec
= spec
->next
)
6807 validate_switches_from_spec (*spec
->ptr_spec
);
6809 validate_switches_from_spec (link_command_spec
);
6812 /* Look at the switch-name that comes after START
6813 and mark as valid all supplied switches that match it. */
6816 validate_switches (start
)
6819 const char *p
= start
;
6823 bool suffix
= false;
6824 bool starred
= false;
6826 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6839 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6840 || *p
== ',' || *p
== '.' || *p
== '@')
6845 starred
= true, p
++;
6851 /* Mark all matching switches as valid. */
6852 for (i
= 0; i
< n_switches
; i
++)
6853 if (!strncmp (switches
[i
].part1
, atom
, len
)
6854 && (starred
|| switches
[i
].part1
[len
] == 0))
6855 switches
[i
].validated
= 1;
6859 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6862 if (*p
&& p
[-1] == ':')
6864 while (*p
&& *p
!= ';' && *p
!= '}')
6869 if (*p
== '{' || *p
== '<')
6870 p
= validate_switches (p
+1);
6871 else if (p
[0] == 'W' && p
[1] == '{')
6872 p
= validate_switches (p
+2);
6879 if (*p
&& p
[-1] == ';')
6893 static struct mdswitchstr
*mdswitches
;
6894 static int n_mdswitches
;
6896 /* Check whether a particular argument was used. The first time we
6897 canonicalize the switches to keep only the ones we care about. */
6907 const char *replace
;
6912 static struct mswitchstr
*mswitches
;
6913 static int n_mswitches
;
6918 struct mswitchstr
*matches
;
6922 /* Break multilib_matches into the component strings of string
6923 and replacement string. */
6924 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6929 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6931 q
= multilib_matches
;
6941 matches
[i
].len
= q
- matches
[i
].str
;
6943 matches
[i
].replace
= ++q
;
6944 while (*q
!= ';' && *q
!= '\0')
6950 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6956 /* Now build a list of the replacement string for switches that we care
6957 about. Make sure we allocate at least one entry. This prevents
6958 xmalloc from calling fatal, and prevents us from re-executing this
6961 = (struct mswitchstr
*)
6962 xmalloc (sizeof (struct mswitchstr
)
6963 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6964 for (i
= 0; i
< n_switches
; i
++)
6966 int xlen
= strlen (switches
[i
].part1
);
6967 for (j
= 0; j
< cnt
; j
++)
6968 if (xlen
== matches
[j
].len
6969 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6971 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6972 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6973 mswitches
[n_mswitches
].replace
= (char *) 0;
6974 mswitches
[n_mswitches
].rep_len
= 0;
6980 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6981 on the command line nor any options mutually incompatible with
6983 for (i
= 0; i
< n_mdswitches
; i
++)
6987 for (q
= multilib_options
; *q
!= '\0'; q
++)
6993 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6994 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6996 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7003 if (*q
!= ' ' && *q
!= '\0')
7005 while (*r
!= ' ' && *r
!= '\0')
7008 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7011 if (used_arg (r
, q
- r
))
7016 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7017 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7018 mswitches
[n_mswitches
].replace
= (char *) 0;
7019 mswitches
[n_mswitches
].rep_len
= 0;
7032 for (i
= 0; i
< n_mswitches
; i
++)
7033 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7040 default_arg (p
, len
)
7046 for (i
= 0; i
< n_mdswitches
; i
++)
7047 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7053 /* Work out the subdirectory to use based on the options. The format of
7054 multilib_select is a list of elements. Each element is a subdirectory
7055 name followed by a list of options followed by a semicolon. The format
7056 of multilib_exclusions is the same, but without the preceding
7057 directory. First gcc will check the exclusions, if none of the options
7058 beginning with an exclamation point are present, and all of the other
7059 options are present, then we will ignore this completely. Passing
7060 that, gcc will consider each multilib_select in turn using the same
7061 rules for matching the options. If a match is found, that subdirectory
7068 unsigned int this_path_len
;
7069 const char *this_path
, *this_arg
;
7070 const char *start
, *end
;
7072 int ok
, ndfltok
, first
;
7075 start
= multilib_defaults
;
7076 while (*start
== ' ' || *start
== '\t')
7078 while (*start
!= '\0')
7081 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7083 while (*start
== ' ' || *start
== '\t')
7092 = (struct mdswitchstr
*) xmalloc (sizeof (struct mdswitchstr
)
7094 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7096 while (*start
== ' ' || *start
== '\t')
7102 for (end
= start
+ 1;
7103 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7106 obstack_grow (&multilib_obstack
, start
, end
- start
);
7107 obstack_1grow (&multilib_obstack
, 0);
7108 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7109 mdswitches
[i
++].len
= end
- start
;
7116 p
= multilib_exclusions
;
7119 /* Ignore newlines. */
7126 /* Check the arguments. */
7140 while (*p
!= ' ' && *p
!= ';')
7147 if (*this_arg
!= '!')
7155 ok
= used_arg (this_arg
, p
- this_arg
);
7170 p
= multilib_select
;
7173 /* Ignore newlines. */
7180 /* Get the initial path. */
7188 this_path_len
= p
- this_path
;
7190 /* Check the arguments. */
7206 while (*p
!= ' ' && *p
!= ';')
7213 if (*this_arg
!= '!')
7221 /* If this is a default argument, we can just ignore it.
7222 This is true even if this_arg begins with '!'. Beginning
7223 with '!' does not mean that this argument is necessarily
7224 inappropriate for this library: it merely means that
7225 there is a more specific library which uses this
7226 argument. If this argument is a default, we need not
7227 consider that more specific library. */
7228 ok
= used_arg (this_arg
, p
- this_arg
);
7235 if (default_arg (this_arg
, p
- this_arg
))
7244 if (this_path_len
!= 1
7245 || this_path
[0] != '.')
7247 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7250 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7251 new_multilib_dir
[this_path_len
] = '\0';
7252 q
= strchr (new_multilib_dir
, ':');
7255 multilib_dir
= new_multilib_dir
;
7262 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7264 while (q
< end
&& *q
!= ':')
7268 char *new_multilib_os_dir
= xmalloc (end
- q
);
7269 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7270 new_multilib_os_dir
[end
- q
- 1] = '\0';
7271 multilib_os_dir
= new_multilib_os_dir
;
7279 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7280 && strcmp (multilib_os_dir
, ".") == 0)
7282 free ((char *) multilib_os_dir
);
7283 multilib_os_dir
= NULL
;
7285 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7286 multilib_os_dir
= multilib_dir
;
7289 /* Print out the multiple library subdirectory selection
7290 information. This prints out a series of lines. Each line looks
7291 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7292 required. Only the desired options are printed out, the negative
7293 matches. The options are print without a leading dash. There are
7294 no spaces to make it easy to use the information in the shell.
7295 Each subdirectory is printed only once. This assumes the ordering
7296 generated by the genmultilib script. Also, we leave out ones that match
7300 print_multilib_info ()
7302 const char *p
= multilib_select
;
7303 const char *last_path
= 0, *this_path
;
7305 unsigned int last_path_len
= 0;
7310 /* Ignore newlines. */
7317 /* Get the initial path. */
7326 /* When --disable-multilib was used but target defines
7327 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7328 to find multilib_os_dir, so skip them from output. */
7329 if (this_path
[0] == '.' && this_path
[1] == ':')
7332 /* Check for matches with the multilib_exclusions. We don't bother
7333 with the '!' in either list. If any of the exclusion rules match
7334 all of its options with the select rule, we skip it. */
7336 const char *e
= multilib_exclusions
;
7337 const char *this_arg
;
7342 /* Ignore newlines. */
7349 /* Check the arguments. */
7366 while (*e
!= ' ' && *e
!= ';')
7377 int len
= e
- this_arg
;
7384 while (*q
!= ' ' && *q
!= ';')
7391 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7392 default_arg (this_arg
, e
- this_arg
))
7422 /* If this is a duplicate, skip it. */
7423 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7424 && ! strncmp (last_path
, this_path
, last_path_len
));
7426 last_path
= this_path
;
7427 last_path_len
= p
- this_path
;
7430 /* If this directory requires any default arguments, we can skip
7431 it. We will already have printed a directory identical to
7432 this one which does not require that default argument. */
7450 while (*q
!= ' ' && *q
!= ';')
7458 && default_arg (arg
, q
- arg
))
7473 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7492 use_arg
= *p
!= '!';
7497 while (*p
!= ' ' && *p
!= ';')
7512 /* If there are extra options, print them now. */
7513 if (multilib_extra
&& *multilib_extra
)
7515 int print_at
= TRUE
;
7518 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7539 /* if-exists built-in spec function.
7541 Checks to see if the file specified by the absolute pathname in
7542 ARGS exists. Returns that pathname if found.
7544 The usual use for this function is to check for a library file
7545 (whose name has been expanded with %s). */
7548 if_exists_spec_function (argc
, argv
)
7552 /* Must have only one argument. */
7553 if (argc
== 1 && IS_ABSOLUTE_PATHNAME (argv
[0]) && ! access (argv
[0], R_OK
))
7559 /* if-exists-else built-in spec function.
7561 This is like if-exists, but takes an additional argument which
7562 is returned if the first argument does not exist. */
7565 if_exists_else_spec_function (argc
, argv
)
7569 /* Must have exactly two arguments. */
7573 if (IS_ABSOLUTE_PATHNAME (argv
[0]) && ! access (argv
[0], R_OK
))