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 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(). */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
85 #ifdef HAVE_SYS_RESOURCE_H
86 #include <sys/resource.h>
88 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
89 extern int getrusage
PARAMS ((int, struct rusage
*));
92 /* By default there is no special suffix for target executables. */
93 /* FIXME: when autoconf is fixed, remove the host check - dj */
94 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
95 #define HAVE_TARGET_EXECUTABLE_SUFFIX
97 #undef TARGET_EXECUTABLE_SUFFIX
98 #define TARGET_EXECUTABLE_SUFFIX ""
101 /* By default there is no special suffix for host executables. */
102 #ifdef HOST_EXECUTABLE_SUFFIX
103 #define HAVE_HOST_EXECUTABLE_SUFFIX
105 #define HOST_EXECUTABLE_SUFFIX ""
108 /* By default, the suffix for target object files is ".o". */
109 #ifdef TARGET_OBJECT_SUFFIX
110 #define HAVE_TARGET_OBJECT_SUFFIX
112 #define TARGET_OBJECT_SUFFIX ".o"
116 /* FIXME: the location independence code for VMS is hairier than this,
117 and hasn't been written. */
123 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
125 #define obstack_chunk_alloc xmalloc
126 #define obstack_chunk_free free
128 #ifndef GET_ENV_PATH_LIST
129 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
132 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
133 #ifndef LIBRARY_PATH_ENV
134 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
138 #define kill(p,s) raise(s)
141 /* If a stage of compilation returns an exit status >= 1,
142 compilation of that file ceases. */
144 #define MIN_FATAL_STATUS 1
146 /* Flag saying to pass the greatest exit code returned by a sub-process
147 to the calling program. */
148 static int pass_exit_codes
;
150 /* Definition of string containing the arguments given to configure. */
151 #include "configargs.h"
153 /* Flag saying to print the directories gcc will search through looking for
154 programs, libraries, etc. */
156 static int print_search_dirs
;
158 /* Flag saying to print the full filename of this file
159 as found through our usual search mechanism. */
161 static const char *print_file_name
= NULL
;
163 /* As print_file_name, but search for executable file. */
165 static const char *print_prog_name
= NULL
;
167 /* Flag saying to print the relative path we'd use to
168 find libgcc.a given the current compiler flags. */
170 static int print_multi_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 to print target specific command line options. */
188 static int target_help_flag
;
190 /* Flag indicating whether we should report subprocess execution times
191 (if this is supported by the system - see pexecute.c). */
193 static int report_times
;
195 /* Nonzero means write "temp" files in source directory
196 and use the source file's name in them, and don't delete them. */
198 static int save_temps_flag
;
200 /* The compiler version. */
202 static const char *compiler_version
;
204 /* The target version specified with -V */
206 static const char *spec_version
= DEFAULT_TARGET_VERSION
;
208 /* The target machine specified with -b. */
210 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
212 /* Nonzero if cross-compiling.
213 When -b is used, the value comes from the `specs' file. */
216 static const char *cross_compile
= "1";
218 static const char *cross_compile
= "0";
221 #ifdef MODIFY_TARGET_NAME
223 /* Information on how to alter the target name based on a command-line
224 switch. The only case we support now is simply appending or deleting a
225 string to or from the end of the first part of the configuration name. */
227 const struct modify_target
229 const char *const sw
;
230 const enum add_del
{ADD
, DELETE
} add_del
;
231 const char *const str
;
233 modify_target
[] = MODIFY_TARGET_NAME
;
236 /* The number of errors that have occurred; the link phase will not be
237 run if this is non-zero. */
238 static int error_count
= 0;
240 /* Greatest exit code of sub-processes that has been encountered up to
242 static int greatest_status
= 1;
244 /* This is the obstack which we use to allocate many strings. */
246 static struct obstack obstack
;
248 /* This is the obstack to build an environment variable to pass to
249 collect2 that describes all of the relevant switches of what to
250 pass the compiler in building the list of pointers to constructors
253 static struct obstack collect_obstack
;
255 /* These structs are used to collect resource usage information for
257 #ifdef HAVE_GETRUSAGE
258 static struct rusage rus
, prus
;
261 /* Forward declaration for prototypes. */
264 static void init_spec
PARAMS ((void));
266 static char **split_directories
PARAMS ((const char *, int *));
267 static void free_split_directories
PARAMS ((char **));
268 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
270 static void store_arg
PARAMS ((const char *, int, int));
271 static char *load_specs
PARAMS ((const char *));
272 static void read_specs
PARAMS ((const char *, int));
273 static void set_spec
PARAMS ((const char *, const char *));
274 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
275 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
276 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
277 static int access_check
PARAMS ((const char *, int));
278 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
279 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
280 const char *, int, int, int *));
281 static void translate_options
PARAMS ((int *, const char *const **));
282 static char *skip_whitespace
PARAMS ((char *));
283 static void delete_if_ordinary
PARAMS ((const char *));
284 static void delete_temp_files
PARAMS ((void));
285 static void delete_failure_queue
PARAMS ((void));
286 static void clear_failure_queue
PARAMS ((void));
287 static int check_live_switch
PARAMS ((int, int));
288 static const char *handle_braces
PARAMS ((const char *));
289 static char *save_string
PARAMS ((const char *, int));
290 static void set_collect_gcc_options
PARAMS ((void));
291 static int do_spec_1
PARAMS ((const char *, int, const char *));
292 static const char *find_file
PARAMS ((const char *));
293 static int is_directory
PARAMS ((const char *, const char *, int));
294 static void validate_switches
PARAMS ((const char *));
295 static void validate_all_switches
PARAMS ((void));
296 static void give_switch
PARAMS ((int, int, int));
297 static int used_arg
PARAMS ((const char *, int));
298 static int default_arg
PARAMS ((const char *, int));
299 static void set_multilib_dir
PARAMS ((void));
300 static void print_multilib_info
PARAMS ((void));
301 static void perror_with_name
PARAMS ((const char *));
302 static void pfatal_pexecute
PARAMS ((const char *, const char *))
304 static void notice
PARAMS ((const char *, ...))
306 static void display_help
PARAMS ((void));
307 static void add_preprocessor_option
PARAMS ((const char *, int));
308 static void add_assembler_option
PARAMS ((const char *, int));
309 static void add_linker_option
PARAMS ((const char *, int));
310 static void process_command
PARAMS ((int, const char *const *));
311 static int execute
PARAMS ((void));
312 static void clear_args
PARAMS ((void));
313 static void fatal_error
PARAMS ((int));
314 #ifdef ENABLE_SHARED_LIBGCC
315 static void init_gcc_specs
PARAMS ((struct obstack
*,
319 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
320 static const char *convert_filename
PARAMS ((const char *, int));
323 /* The Specs Language
325 Specs are strings containing lines, each of which (if not blank)
326 is made up of a program name, and arguments separated by spaces.
327 The program name must be exact and start from root, since no path
328 is searched and it is unreliable to depend on the current working directory.
329 Redirection of input or output is not supported; the subprograms must
330 accept filenames saying what files to read and write.
332 In addition, the specs can contain %-sequences to substitute variable text
333 or for conditional text. Here is a table of all defined %-sequences.
334 Note that spaces are not generated automatically around the results of
335 expanding these sequences; therefore, you can concatenate them together
336 or with constant text in a single argument.
338 %% substitute one % into the program name or argument.
339 %i substitute the name of the input file being processed.
340 %b substitute the basename of the input file being processed.
341 This is the substring up to (and not including) the last period
342 and not including the directory.
343 %B same as %b, but include the file suffix (text after the last period).
345 substitute a file name that has suffix SUFFIX and is chosen
346 once per compilation, and mark the argument a la %d. To reduce
347 exposure to denial-of-service attacks, the file name is now
348 chosen in a way that is hard to predict even when previously
349 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
350 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
351 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
352 had been pre-processed. Previously, %g was simply substituted
353 with a file name chosen once per compilation, without regard
354 to any appended suffix (which was therefore treated just like
355 ordinary text), making such attacks more likely to succeed.
357 like %g, but generates a new temporary file name even if %uSUFFIX
360 substitutes the last file name generated with %uSUFFIX, generating a
361 new one if there is no such last file name. In the absence of any
362 %uSUFFIX, this is just like %gSUFFIX, except they don't share
363 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
364 would involve the generation of two distinct file names, one
365 for each `%g.s' and another for each `%U.s'. Previously, %U was
366 simply substituted with a file name chosen for the previous %u,
367 without regard to any appended suffix.
369 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
370 writable, and if save-temps is off; otherwise, substitute the name
371 of a temporary file, just like %u. This temporary file is not
372 meant for communication between processes, but rather as a junk
375 substitutes .SUFFIX for the suffixes of a matched switch's args when
376 it is subsequently output with %*. SUFFIX is terminated by the next
378 %d marks the argument containing or following the %d as a
379 temporary file name, so that that file will be deleted if CC exits
380 successfully. Unlike %g, this contributes no text to the argument.
381 %w marks the argument containing or following the %w as the
382 "output file" of this compilation. This puts the argument
383 into the sequence of arguments that %o will substitute later.
385 like %{...} but mark last argument supplied within
386 as a file to be deleted on failure.
387 %o substitutes the names of all the output files, with spaces
388 automatically placed around them. You should write spaces
389 around the %o as well or the results are undefined.
390 %o is for use in the specs for running the linker.
391 Input files whose names have no recognized suffix are not compiled
392 at all, but they are included among the output files, so they will
394 %O substitutes the suffix for object files. Note that this is
395 handled specially when it immediately follows %g, %u, or %U
396 (with or without a suffix argument) because of the need for
397 those to form complete file names. The handling is such that
398 %O is treated exactly as if it had already been substituted,
399 except that %g, %u, and %U do not currently support additional
400 SUFFIX characters following %O as they would following, for
402 %p substitutes the standard macro predefinitions for the
403 current target machine. Use this when running cpp.
404 %P like %p, but puts `__' before and after the name of each macro.
405 (Except macros that already have __.)
407 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
408 %s current argument is the name of a library or startup file of some sort.
409 Search for that file in a standard list of directories
410 and substitute the full name found.
411 %eSTR Print STR as an error message. STR is terminated by a newline.
412 Use this when inconsistent options are detected.
413 %nSTR Print STR as an notice. STR is terminated by a newline.
414 %x{OPTION} Accumulate an option for %X.
415 %X Output the accumulated linker options specified by compilations.
416 %Y Output the accumulated assembler options specified by compilations.
417 %Z Output the accumulated preprocessor options specified by compilations.
418 %v1 Substitute the major version number of GCC.
419 (For version 2.5.3, this is 2.)
420 %v2 Substitute the minor version number of GCC.
421 (For version 2.5.3, this is 5.)
422 %v3 Substitute the patch level number of GCC.
423 (For version 2.5.3, this is 3.)
424 %a process ASM_SPEC as a spec.
425 This allows config.h to specify part of the spec for running as.
426 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
427 used here. This can be used to run a post-processor after the
428 assembler has done its job.
429 %D Dump out a -L option for each directory in startfile_prefixes.
430 If multilib_dir is set, extra entries are generated with it affixed.
431 %l process LINK_SPEC as a spec.
432 %L process LIB_SPEC as a spec.
433 %G process LIBGCC_SPEC as a spec.
434 %M output multilib_dir with directory separators replaced with "_";
435 if multilib_dir is not set or is ".", output "".
436 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
437 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
438 %c process SIGNED_CHAR_SPEC as a spec.
439 %C process CPP_SPEC as a spec.
440 %1 process CC1_SPEC as a spec.
441 %2 process CC1PLUS_SPEC as a spec.
442 %| output "-" if the input for the current command is coming from a pipe.
443 %* substitute the variable part of a matched option. (See below.)
444 Note that each comma in the substituted string is replaced by
446 %{S} substitutes the -S switch, if that switch was given to CC.
447 If that switch was not specified, this substitutes nothing.
448 Here S is a metasyntactic variable.
449 %{S*} substitutes all the switches specified to CC whose names start
450 with -S. This is used for -o, -I, etc; switches that take
451 arguments. CC considers `-o foo' as being one switch whose
452 name starts with `o'. %{o*} would substitute this text,
453 including the space; thus, two arguments would be generated.
454 %{^S*} likewise, but don't put a blank between a switch and any args.
455 %{S*&T*} likewise, but preserve order of S and T options (the order
456 of S and T in the spec is not significant). Can be any number
457 of ampersand-separated variables; for each the wild card is
458 optional. Useful for CPP as %{D*&U*&A*}.
459 %{S*:X} substitutes X if one or more switches whose names start with -S are
460 specified to CC. Note that the tail part of the -S option
461 (i.e. the part matched by the `*') will be substituted for each
462 occurrence of %* within X.
463 %{<S} remove all occurrences of -S from the command line.
464 Note - this option is position dependent. % commands in the
465 spec string before this option will see -S, % commands in the
466 spec string after this option will not.
467 %{S:X} substitutes X, but only if the -S switch was given to CC.
468 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
469 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
470 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
471 %{.S:X} substitutes X, but only if processing a file with suffix S.
472 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
473 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
474 combined with ! and . as above binding stronger than the OR.
475 %(Spec) processes a specification defined in a specs file as *Spec:
476 %[Spec] as above, but put __ around -D arguments
478 The conditional text X in a %{S:X} or %{!S:X} construct may contain
479 other nested % constructs or spaces, or even newlines. They are
480 processed as usual, as described above.
482 The -O, -f, -m, and -W switches are handled specifically in these
483 constructs. If another value of -O or the negated form of a -f, -m, or
484 -W switch is found later in the command line, the earlier switch
485 value is ignored, except with {S*} where S is just one letter; this
486 passes all matching options.
488 The character | at the beginning of the predicate text is used to indicate
489 that a command should be piped to the following command, but only if -pipe
492 Note that it is built into CC which switches take arguments and which
493 do not. You might think it would be useful to generalize this to
494 allow each compiler's spec to say which switches take arguments. But
495 this cannot be done in a consistent fashion. CC cannot even decide
496 which input files have been specified without knowing which switches
497 take arguments, and it must know which input files to compile in order
498 to tell which compilers to run.
500 CC also knows implicitly that arguments starting in `-l' are to be
501 treated as compiler output files, and passed to the linker in their
502 proper position among the other output files. */
504 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
506 /* config.h can define ASM_SPEC to provide extra args to the assembler
507 or extra switch-translations. */
512 /* config.h can define ASM_FINAL_SPEC to run a post processor after
513 the assembler has run. */
514 #ifndef ASM_FINAL_SPEC
515 #define ASM_FINAL_SPEC ""
518 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
519 or extra switch-translations. */
524 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
525 or extra switch-translations. */
530 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
531 or extra switch-translations. */
533 #define CC1PLUS_SPEC ""
536 /* config.h can define LINK_SPEC to provide extra args to the linker
537 or extra switch-translations. */
542 /* config.h can define LIB_SPEC to override the default libraries. */
544 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
547 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
550 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
551 /* Have gcc do the search for libgcc.a. */
552 #define LIBGCC_SPEC "libgcc.a%s"
554 #define LIBGCC_SPEC "-lgcc"
558 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
559 #ifndef STARTFILE_SPEC
560 #define STARTFILE_SPEC \
561 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
564 /* config.h can define SWITCHES_NEED_SPACES to control which options
565 require spaces between the option and the argument. */
566 #ifndef SWITCHES_NEED_SPACES
567 #define SWITCHES_NEED_SPACES ""
570 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
572 #define ENDFILE_SPEC ""
575 /* This spec is used for telling cpp whether char is signed or not. */
576 #ifndef SIGNED_CHAR_SPEC
577 /* Use #if rather than ?:
578 because MIPS C compiler rejects like ?: in initializers. */
579 #if DEFAULT_SIGNED_CHAR
580 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
582 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
587 #define LINKER_NAME "collect2"
590 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
592 #ifndef ASM_DEBUG_SPEC
593 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
594 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
595 # define ASM_DEBUG_SPEC \
596 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
597 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
598 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
600 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
601 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
603 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
604 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
608 #ifndef ASM_DEBUG_SPEC
609 # define ASM_DEBUG_SPEC ""
612 /* Here is the spec for running the linker, after compiling all files. */
614 /* -u* was put back because both BSD and SysV seem to support it. */
615 /* %{static:} simply prevents an error message if the target machine
616 doesn't handle -static. */
617 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
618 scripts which exist in user specified directories, or in standard
620 #ifndef LINK_COMMAND_SPEC
621 #define LINK_COMMAND_SPEC "\
622 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
623 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
624 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
625 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
626 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
629 #ifndef LINK_LIBGCC_SPEC
630 # ifdef LINK_LIBGCC_SPECIAL
631 /* Don't generate -L options for startfile prefix list. */
632 # define LINK_LIBGCC_SPEC ""
634 /* Do generate them. */
635 # define LINK_LIBGCC_SPEC "%D"
639 static const char *asm_debug
= ASM_DEBUG_SPEC
;
640 static const char *cpp_spec
= CPP_SPEC
;
641 static const char *cpp_predefines
= CPP_PREDEFINES
;
642 static const char *cc1_spec
= CC1_SPEC
;
643 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
644 static const char *signed_char_spec
= SIGNED_CHAR_SPEC
;
645 static const char *asm_spec
= ASM_SPEC
;
646 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
647 static const char *link_spec
= LINK_SPEC
;
648 static const char *lib_spec
= LIB_SPEC
;
649 static const char *libgcc_spec
= LIBGCC_SPEC
;
650 static const char *endfile_spec
= ENDFILE_SPEC
;
651 static const char *startfile_spec
= STARTFILE_SPEC
;
652 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
653 static const char *linker_name_spec
= LINKER_NAME
;
654 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
655 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
657 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
658 There should be no need to override these in target dependent files,
659 but we need to copy them to the specs file so that newer versions
660 of the GCC driver can correctly drive older tool chains with the
661 appropriate -B options. */
663 static const char *trad_capable_cpp
=
664 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
666 static const char *cpp_options
=
667 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
668 %{std*} %{nostdinc*}\
669 %{C} %{v} %{I*} %{P} %{$} %I\
670 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
671 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
672 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
673 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
674 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
675 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
676 %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
677 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
678 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
679 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
680 %{fshow-column} %{fno-show-column}\
681 %{fleading-underscore} %{fno-leading-underscore}\
682 %{fno-operator-names} %{ftabstop=*} %{remap}\
683 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
686 /* NB: This is shared amongst all front-ends. */
687 static const char *cc1_options
=
688 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
689 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
690 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
691 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
692 %{Qn:-fno-ident} %{--help:--help}\
693 %{--target-help:--target-help}\
694 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
695 %{fsyntax-only:-o %j} %{-param*}";
697 static const char *asm_options
=
698 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
700 static const char *invoke_as
=
701 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
703 /* Some compilers have limits on line lengths, and the multilib_select
704 and/or multilib_matches strings can be very long, so we build them at
706 static struct obstack multilib_obstack
;
707 static const char *multilib_select
;
708 static const char *multilib_matches
;
709 static const char *multilib_defaults
;
710 static const char *multilib_exclusions
;
711 #include "multilib.h"
713 /* Check whether a particular argument is a default argument. */
715 #ifndef MULTILIB_DEFAULTS
716 #define MULTILIB_DEFAULTS { "" }
719 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
723 struct user_specs
*next
;
724 const char *filename
;
727 static struct user_specs
*user_specs_head
, *user_specs_tail
;
729 /* This defines which switch letters take arguments. */
731 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
732 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
733 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
734 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
735 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
736 || (CHAR) == 'B' || (CHAR) == 'b')
738 #ifndef SWITCH_TAKES_ARG
739 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
742 /* This defines which multi-letter switches take arguments. */
744 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
745 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
746 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
747 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
748 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
749 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
750 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
751 || !strcmp (STR, "specs") \
752 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
754 #ifndef WORD_SWITCH_TAKES_ARG
755 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
758 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
759 /* This defines which switches stop a full compilation. */
760 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
761 ((CHAR) == 'c' || (CHAR) == 'S')
763 #ifndef SWITCH_CURTAILS_COMPILATION
764 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
765 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
769 /* Record the mapping from file suffixes for compilation specs. */
773 const char *suffix
; /* Use this compiler for input files
774 whose names end in this suffix. */
776 const char *spec
; /* To use this compiler, run this spec. */
778 const char *cpp_spec
; /* If non-NULL, substitute this spec
779 for `%C', rather than the usual
783 /* Pointer to a vector of `struct compiler' that gives the spec for
784 compiling a file, based on its suffix.
785 A file that does not end in any of these suffixes will be passed
786 unchanged to the loader and nothing else will be done to it.
788 An entry containing two 0s is used to terminate the vector.
790 If multiple entries match a file, the last matching one is used. */
792 static struct compiler
*compilers
;
794 /* Number of entries in `compilers', not counting the null terminator. */
796 static int n_compilers
;
798 /* The default list of file name suffixes and their compilation specs. */
800 static struct compiler default_compilers
[] =
802 /* Add lists of suffixes of known languages here. If those languages
803 were not present when we built the driver, we will hit these copies
804 and be given a more meaningful error than "file not used since
805 linking is not done". */
806 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
807 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
808 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
810 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
811 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
812 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
813 {".r", "#Ratfor", 0},
814 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
815 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
816 {".java", "#Java", 0}, {".class", "#Java", 0},
817 {".zip", "#Java", 0}, {".jar", "#Java", 0},
818 /* Next come the entries for C. */
821 /* cc1 has an integrated ISO C preprocessor. We should invoke the
822 external preprocessor if -save-temps or -traditional is given. */
823 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
825 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
826 %(cpp_options) %b.i \n\
827 cc1 -fpreprocessed %b.i %(cc1_options)}\
829 %{traditional|ftraditional|traditional-cpp:\
830 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
831 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
832 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
833 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
834 %{!fsyntax-only:%(invoke_as)}}}}", 0},
836 "%{!E:%e-E required when input is from standard input}\
837 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
838 {".h", "@c-header", 0},
840 "%{!E:%eCompilation of header file requested} \
841 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
842 {".i", "@cpp-output", 0},
844 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
845 {".s", "@assembler", 0},
847 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
848 {".S", "@assembler-with-cpp", 0},
849 {"@assembler-with-cpp",
850 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
851 %{!M:%{!MM:%{!E:%{!S:-o %{|!pipe:%g.s} |\n\
852 as %(asm_debug) %(asm_options) %{!pipe:%g.s} %A }}}}", 0},
854 /* Mark end of table */
858 /* Number of elements in default_compilers, not counting the terminator. */
860 static int n_default_compilers
861 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
863 /* A vector of options to give to the linker.
864 These options are accumulated by %x,
865 and substituted into the linker command with %X. */
866 static int n_linker_options
;
867 static char **linker_options
;
869 /* A vector of options to give to the assembler.
870 These options are accumulated by -Wa,
871 and substituted into the assembler command with %Y. */
872 static int n_assembler_options
;
873 static char **assembler_options
;
875 /* A vector of options to give to the preprocessor.
876 These options are accumulated by -Wp,
877 and substituted into the preprocessor command with %Z. */
878 static int n_preprocessor_options
;
879 static char **preprocessor_options
;
881 /* Define how to map long options into short ones. */
883 /* This structure describes one mapping. */
886 /* The long option's name. */
887 const char *const name
;
888 /* The equivalent short option. */
889 const char *const equivalent
;
890 /* Argument info. A string of flag chars; NULL equals no options.
891 a => argument required.
892 o => argument optional.
893 j => join argument to equivalent, making one word.
894 * => require other text after NAME as an argument. */
895 const char *const arg_info
;
898 /* This is the table of mappings. Mappings are tried sequentially
899 for each option encountered; the first one that matches, wins. */
901 static const struct option_map option_map
[] =
903 {"--all-warnings", "-Wall", 0},
904 {"--ansi", "-ansi", 0},
905 {"--assemble", "-S", 0},
906 {"--assert", "-A", "a"},
907 {"--classpath", "-fclasspath=", "aj"},
908 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
909 {"--comments", "-C", 0},
910 {"--compile", "-c", 0},
911 {"--debug", "-g", "oj"},
912 {"--define-macro", "-D", "aj"},
913 {"--dependencies", "-M", 0},
914 {"--dump", "-d", "a"},
915 {"--dumpbase", "-dumpbase", "a"},
916 {"--entry", "-e", 0},
917 {"--extra-warnings", "-W", 0},
918 {"--for-assembler", "-Wa", "a"},
919 {"--for-linker", "-Xlinker", "a"},
920 {"--force-link", "-u", "a"},
921 {"--imacros", "-imacros", "a"},
922 {"--include", "-include", "a"},
923 {"--include-barrier", "-I-", 0},
924 {"--include-directory", "-I", "aj"},
925 {"--include-directory-after", "-idirafter", "a"},
926 {"--include-prefix", "-iprefix", "a"},
927 {"--include-with-prefix", "-iwithprefix", "a"},
928 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
929 {"--include-with-prefix-after", "-iwithprefix", "a"},
930 {"--language", "-x", "a"},
931 {"--library-directory", "-L", "a"},
932 {"--machine", "-m", "aj"},
933 {"--machine-", "-m", "*j"},
934 {"--no-line-commands", "-P", 0},
935 {"--no-precompiled-includes", "-noprecomp", 0},
936 {"--no-standard-includes", "-nostdinc", 0},
937 {"--no-standard-libraries", "-nostdlib", 0},
938 {"--no-warnings", "-w", 0},
939 {"--optimize", "-O", "oj"},
940 {"--output", "-o", "a"},
941 {"--output-class-directory", "-foutput-class-dir=", "ja"},
942 {"--param", "--param", "a"},
943 {"--pedantic", "-pedantic", 0},
944 {"--pedantic-errors", "-pedantic-errors", 0},
945 {"--pipe", "-pipe", 0},
946 {"--prefix", "-B", "a"},
947 {"--preprocess", "-E", 0},
948 {"--print-search-dirs", "-print-search-dirs", 0},
949 {"--print-file-name", "-print-file-name=", "aj"},
950 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
951 {"--print-missing-file-dependencies", "-MG", 0},
952 {"--print-multi-lib", "-print-multi-lib", 0},
953 {"--print-multi-directory", "-print-multi-directory", 0},
954 {"--print-prog-name", "-print-prog-name=", "aj"},
955 {"--profile", "-p", 0},
956 {"--profile-blocks", "-a", 0},
957 {"--quiet", "-q", 0},
958 {"--save-temps", "-save-temps", 0},
959 {"--shared", "-shared", 0},
960 {"--silent", "-q", 0},
961 {"--specs", "-specs=", "aj"},
962 {"--static", "-static", 0},
963 {"--std", "-std=", "aj"},
964 {"--symbolic", "-symbolic", 0},
965 {"--target", "-b", "a"},
966 {"--time", "-time", 0},
967 {"--trace-includes", "-H", 0},
968 {"--traditional", "-traditional", 0},
969 {"--traditional-cpp", "-traditional-cpp", 0},
970 {"--trigraphs", "-trigraphs", 0},
971 {"--undefine-macro", "-U", "aj"},
972 {"--use-version", "-V", "a"},
973 {"--user-dependencies", "-MM", 0},
974 {"--verbose", "-v", 0},
975 {"--version", "-dumpversion", 0},
976 {"--warn-", "-W", "*j"},
977 {"--write-dependencies", "-MD", 0},
978 {"--write-user-dependencies", "-MMD", 0},
983 #ifdef TARGET_OPTION_TRANSLATE_TABLE
984 static const struct {
985 const char *const option_found
;
986 const char *const replacements
;
987 } target_option_translations
[] =
989 TARGET_OPTION_TRANSLATE_TABLE
,
994 /* Translate the options described by *ARGCP and *ARGVP.
995 Make a new vector and store it back in *ARGVP,
996 and store its length in *ARGVC. */
999 translate_options (argcp
, argvp
)
1001 const char *const **argvp
;
1005 const char *const *argv
= *argvp
;
1006 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1008 (const char **) xmalloc (newvsize
);
1012 newv
[newindex
++] = argv
[i
++];
1016 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1020 target_option_translations
[tott_idx
].option_found
;
1023 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1030 for (sp
= target_option_translations
[tott_idx
].replacements
;
1037 newvsize
+= spaces
* sizeof (const char *);
1038 newv
= (const char **) xrealloc (newv
, newvsize
);
1040 sp
= target_option_translations
[tott_idx
].replacements
;
1049 newv
[newindex
++] = np
;
1050 while (*np
!= ' ' && *np
)
1061 if (target_option_translations
[tott_idx
].option_found
)
1065 /* Translate -- options. */
1066 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1069 /* Find a mapping that applies to this option. */
1070 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1072 size_t optlen
= strlen (option_map
[j
].name
);
1073 size_t arglen
= strlen (argv
[i
]);
1074 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1075 const char *arginfo
= option_map
[j
].arg_info
;
1080 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1082 const char *arg
= 0;
1084 if (arglen
< optlen
)
1087 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1088 if (strlen (option_map
[k
].name
) >= arglen
1089 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1091 error ("ambiguous abbreviation %s", argv
[i
]);
1095 if (k
!= ARRAY_SIZE (option_map
))
1099 if (arglen
> optlen
)
1101 /* If the option has an argument, accept that. */
1102 if (argv
[i
][optlen
] == '=')
1103 arg
= argv
[i
] + optlen
+ 1;
1105 /* If this mapping requires extra text at end of name,
1106 accept that as "argument". */
1107 else if (strchr (arginfo
, '*') != 0)
1108 arg
= argv
[i
] + optlen
;
1110 /* Otherwise, extra text at end means mismatch.
1111 Try other mappings. */
1116 else if (strchr (arginfo
, '*') != 0)
1118 error ("incomplete `%s' option", option_map
[j
].name
);
1122 /* Handle arguments. */
1123 if (strchr (arginfo
, 'a') != 0)
1129 error ("missing argument to `%s' option",
1130 option_map
[j
].name
);
1137 else if (strchr (arginfo
, '*') != 0)
1139 else if (strchr (arginfo
, 'o') == 0)
1142 error ("extraneous argument to `%s' option",
1143 option_map
[j
].name
);
1147 /* Store the translation as one argv elt or as two. */
1148 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1149 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1153 newv
[newindex
++] = option_map
[j
].equivalent
;
1154 newv
[newindex
++] = arg
;
1157 newv
[newindex
++] = option_map
[j
].equivalent
;
1165 /* Handle old-fashioned options--just copy them through,
1166 with their arguments. */
1167 else if (argv
[i
][0] == '-')
1169 const char *p
= argv
[i
] + 1;
1173 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1174 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1175 else if (WORD_SWITCH_TAKES_ARG (p
))
1176 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1177 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1180 else if (! strcmp (p
, "Xlinker"))
1183 /* Watch out for an option at the end of the command line that
1184 is missing arguments, and avoid skipping past the end of the
1186 if (nskip
+ i
> argc
)
1191 newv
[newindex
++] = argv
[i
++];
1196 /* Ordinary operands, or +e options. */
1197 newv
[newindex
++] = argv
[i
++];
1212 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1213 be considered whitespace. */
1214 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1216 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1230 /* Structures to keep track of prefixes to try when looking for files. */
1234 const char *prefix
; /* String to prepend to the path. */
1235 struct prefix_list
*next
; /* Next in linked list. */
1236 int require_machine_suffix
; /* Don't use without machine_suffix. */
1237 /* 2 means try both machine_suffix and just_machine_suffix. */
1238 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1239 int priority
; /* Sort key - priority within list */
1244 struct prefix_list
*plist
; /* List of prefixes to try */
1245 int max_len
; /* Max length of a prefix in PLIST */
1246 const char *name
; /* Name of this list (used in config stuff) */
1249 /* List of prefixes to try when looking for executables. */
1251 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1253 /* List of prefixes to try when looking for startup (crt0) files. */
1255 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1257 /* List of prefixes to try when looking for include files. */
1259 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1261 /* Suffix to attach to directories searched for commands.
1262 This looks like `MACHINE/VERSION/'. */
1264 static const char *machine_suffix
= 0;
1266 /* Suffix to attach to directories searched for commands.
1267 This is just `MACHINE/'. */
1269 static const char *just_machine_suffix
= 0;
1271 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1273 static const char *gcc_exec_prefix
;
1275 /* Default prefixes to attach to command names. */
1277 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1278 #undef MD_EXEC_PREFIX
1279 #undef MD_STARTFILE_PREFIX
1280 #undef MD_STARTFILE_PREFIX_1
1283 /* If no prefixes defined, use the null string, which will disable them. */
1284 #ifndef MD_EXEC_PREFIX
1285 #define MD_EXEC_PREFIX ""
1287 #ifndef MD_STARTFILE_PREFIX
1288 #define MD_STARTFILE_PREFIX ""
1290 #ifndef MD_STARTFILE_PREFIX_1
1291 #define MD_STARTFILE_PREFIX_1 ""
1294 /* Supply defaults for the standard prefixes. */
1296 #ifndef STANDARD_EXEC_PREFIX
1297 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1299 #ifndef STANDARD_STARTFILE_PREFIX
1300 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1302 #ifndef TOOLDIR_BASE_PREFIX
1303 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1305 #ifndef STANDARD_BINDIR_PREFIX
1306 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1309 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1310 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1311 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1313 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1314 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1315 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1316 static const char *const standard_startfile_prefix_1
= "/lib/";
1317 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1319 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1320 static const char *tooldir_prefix
;
1322 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1324 /* Subdirectory to use for locating libraries. Set by
1325 set_multilib_dir based on the compilation options. */
1327 static const char *multilib_dir
;
1329 /* Structure to keep track of the specs that have been defined so far.
1330 These are accessed using %(specname) or %[specname] in a compiler
1335 /* The following 2 fields must be first */
1336 /* to allow EXTRA_SPECS to be initialized */
1337 const char *name
; /* name of the spec. */
1338 const char *ptr
; /* available ptr if no static pointer */
1340 /* The following fields are not initialized */
1341 /* by EXTRA_SPECS */
1342 const char **ptr_spec
; /* pointer to the spec itself. */
1343 struct spec_list
*next
; /* Next spec in linked list. */
1344 int name_len
; /* length of the name */
1345 int alloc_p
; /* whether string was allocated */
1348 #define INIT_STATIC_SPEC(NAME,PTR) \
1349 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1351 /* List of statically defined specs. */
1352 static struct spec_list static_specs
[] =
1354 INIT_STATIC_SPEC ("asm", &asm_spec
),
1355 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1356 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1357 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1358 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1359 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1360 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1361 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1362 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1363 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1364 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1365 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1366 INIT_STATIC_SPEC ("link", &link_spec
),
1367 INIT_STATIC_SPEC ("lib", &lib_spec
),
1368 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1369 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1370 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1371 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1372 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1373 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1374 INIT_STATIC_SPEC ("version", &compiler_version
),
1375 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1376 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1377 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1378 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1379 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1380 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1381 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1382 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1383 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1384 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1387 #ifdef EXTRA_SPECS /* additional specs needed */
1388 /* Structure to keep track of just the first two args of a spec_list.
1389 That is all that the EXTRA_SPECS macro gives us. */
1392 const char *const name
;
1393 const char *const ptr
;
1396 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1397 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1400 /* List of dynamically allocates specs that have been defined so far. */
1402 static struct spec_list
*specs
= (struct spec_list
*) 0;
1404 /* Add appropriate libgcc specs to OBSTACK, taking into account
1405 various permutations of -shared-libgcc, -shared, and such. */
1407 #ifdef ENABLE_SHARED_LIBGCC
1409 init_gcc_specs (obstack
, shared_name
, static_name
)
1410 struct obstack
*obstack
;
1411 const char *shared_name
;
1412 const char *static_name
;
1416 /* If we see -shared-libgcc, then use the shared version. */
1417 sprintf (buffer
, "%%{shared-libgcc:%s %s}", shared_name
, static_name
);
1418 obstack_grow (obstack
, buffer
, strlen (buffer
));
1419 /* If we see -static-libgcc, then use the static version. */
1420 sprintf (buffer
, "%%{static-libgcc:%s}", static_name
);
1421 obstack_grow (obstack
, buffer
, strlen (buffer
));
1422 /* Otherwise, if we see -shared, then use the shared version. */
1424 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s %s}}}",
1425 shared_name
, static_name
);
1426 obstack_grow (obstack
, buffer
, strlen (buffer
));
1427 /* Otherwise, use the static version. */
1429 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1431 obstack_grow (obstack
, buffer
, strlen (buffer
));
1433 #endif /* ENABLE_SHARED_LIBGCC */
1435 /* Initialize the specs lookup routines. */
1440 struct spec_list
*next
= (struct spec_list
*) 0;
1441 struct spec_list
*sl
= (struct spec_list
*) 0;
1445 return; /* Already initialized. */
1448 notice ("Using builtin specs.\n");
1451 extra_specs
= (struct spec_list
*)
1452 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1454 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1456 sl
= &extra_specs
[i
];
1457 sl
->name
= extra_specs_1
[i
].name
;
1458 sl
->ptr
= extra_specs_1
[i
].ptr
;
1460 sl
->name_len
= strlen (sl
->name
);
1461 sl
->ptr_spec
= &sl
->ptr
;
1466 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1468 sl
= &static_specs
[i
];
1473 #ifdef ENABLE_SHARED_LIBGCC
1474 /* ??? If neither -shared-libgcc nor --static-libgcc was
1475 seen, then we should be making an educated guess. Some proposed
1476 heuristics for ELF include:
1478 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1479 program will be doing dynamic loading, which will likely
1480 need the shared libgcc.
1482 (2) If "-ldl", then it's also a fair bet that we're doing
1485 (3) For each ET_DYN we're linking against (either through -lfoo
1486 or /some/path/foo.so), check to see whether it or one of
1487 its dependencies depends on a shared libgcc.
1491 If the runtime is fixed to look for program headers instead
1492 of calling __register_frame_info at all, for each object,
1493 use the shared libgcc if any EH symbol referenced.
1495 If crtstuff is fixed to not invoke __register_frame_info
1496 automatically, for each object, use the shared libgcc if
1497 any non-empty unwind section found.
1499 Doing any of this probably requires invoking an external program to
1500 do the actual object file scanning. */
1502 const char *p
= libgcc_spec
;
1505 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1506 when given the proper command line arguments. */
1509 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1511 init_gcc_specs (&obstack
,
1512 #ifdef NO_SHARED_LIBGCC_MULTILIB
1522 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1524 /* Ug. We don't know shared library extensions. Hope that
1525 systems that use this form don't do shared libraries. */
1526 init_gcc_specs (&obstack
,
1527 #ifdef NO_SHARED_LIBGCC_MULTILIB
1539 obstack_1grow (&obstack
, *p
);
1540 in_sep
= (*p
== ' ');
1545 obstack_1grow (&obstack
, '\0');
1546 libgcc_spec
= obstack_finish (&obstack
);
1549 #ifdef USE_AS_TRADITIONAL_FORMAT
1550 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1552 static const char tf
[] = "--traditional-format ";
1553 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1554 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1555 asm_spec
= obstack_finish (&obstack
);
1562 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1563 removed; If the spec starts with a + then SPEC is added to the end of the
1567 set_spec (name
, spec
)
1571 struct spec_list
*sl
;
1572 const char *old_spec
;
1573 int name_len
= strlen (name
);
1576 /* If this is the first call, initialize the statically allocated specs. */
1579 struct spec_list
*next
= (struct spec_list
*) 0;
1580 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1582 sl
= &static_specs
[i
];
1589 /* See if the spec already exists. */
1590 for (sl
= specs
; sl
; sl
= sl
->next
)
1591 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1596 /* Not found - make it. */
1597 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1598 sl
->name
= xstrdup (name
);
1599 sl
->name_len
= name_len
;
1600 sl
->ptr_spec
= &sl
->ptr
;
1602 *(sl
->ptr_spec
) = "";
1607 old_spec
= *(sl
->ptr_spec
);
1608 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1609 ? concat (old_spec
, spec
+ 1, NULL
)
1614 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1617 /* Free the old spec. */
1618 if (old_spec
&& sl
->alloc_p
)
1619 free ((PTR
) old_spec
);
1624 /* Accumulate a command (program name and args), and run it. */
1626 /* Vector of pointers to arguments in the current line of specifications. */
1628 static const char **argbuf
;
1630 /* Number of elements allocated in argbuf. */
1632 static int argbuf_length
;
1634 /* Number of elements in argbuf currently in use (containing args). */
1636 static int argbuf_index
;
1638 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1639 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1642 static struct temp_name
{
1643 const char *suffix
; /* suffix associated with the code. */
1644 int length
; /* strlen (suffix). */
1645 int unique
; /* Indicates whether %g or %u/%U was used. */
1646 const char *filename
; /* associated filename. */
1647 int filename_length
; /* strlen (filename). */
1648 struct temp_name
*next
;
1651 /* Number of commands executed so far. */
1653 static int execution_count
;
1655 /* Number of commands that exited with a signal. */
1657 static int signal_count
;
1659 /* Name with which this program was invoked. */
1661 static const char *programname
;
1663 /* Clear out the vector of arguments (after a command is executed). */
1671 /* Add one argument to the vector at the end.
1672 This is done when a space is seen or at the end of the line.
1673 If DELETE_ALWAYS is nonzero, the arg is a filename
1674 and the file should be deleted eventually.
1675 If DELETE_FAILURE is nonzero, the arg is a filename
1676 and the file should be deleted if this compilation fails. */
1679 store_arg (arg
, delete_always
, delete_failure
)
1681 int delete_always
, delete_failure
;
1683 if (argbuf_index
+ 1 == argbuf_length
)
1685 = (const char **) xrealloc (argbuf
,
1686 (argbuf_length
*= 2) * sizeof (const char *));
1688 argbuf
[argbuf_index
++] = arg
;
1689 argbuf
[argbuf_index
] = 0;
1691 if (delete_always
|| delete_failure
)
1692 record_temp_file (arg
, delete_always
, delete_failure
);
1695 /* Load specs from a file name named FILENAME, replacing occurrences of
1696 various different types of line-endings, \r\n, \n\r and just \r, with
1700 load_specs (filename
)
1701 const char *filename
;
1705 struct stat statbuf
;
1712 notice ("Reading specs from %s\n", filename
);
1714 /* Open and stat the file. */
1715 desc
= open (filename
, O_RDONLY
, 0);
1717 pfatal_with_name (filename
);
1718 if (stat (filename
, &statbuf
) < 0)
1719 pfatal_with_name (filename
);
1721 /* Read contents of file into BUFFER. */
1722 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1723 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1725 pfatal_with_name (filename
);
1726 buffer
[readlen
] = 0;
1729 specs
= xmalloc (readlen
+ 1);
1731 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1737 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1739 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1753 /* Read compilation specs from a file named FILENAME,
1754 replacing the default ones.
1756 A suffix which starts with `*' is a definition for
1757 one of the machine-specific sub-specs. The "suffix" should be
1758 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1759 The corresponding spec is stored in asm_spec, etc.,
1760 rather than in the `compilers' vector.
1762 Anything invalid in the file is a fatal error. */
1765 read_specs (filename
, main_p
)
1766 const char *filename
;
1772 buffer
= load_specs (filename
);
1774 /* Scan BUFFER for specs, putting them in the vector. */
1780 char *in
, *out
, *p1
, *p2
, *p3
;
1782 /* Advance P in BUFFER to the next nonblank nocomment line. */
1783 p
= skip_whitespace (p
);
1787 /* Is this a special command that starts with '%'? */
1788 /* Don't allow this for the main specs file, since it would
1789 encourage people to overwrite it. */
1790 if (*p
== '%' && !main_p
)
1793 while (*p
&& *p
!= '\n')
1799 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1800 && (p1
[sizeof "%include" - 1] == ' '
1801 || p1
[sizeof "%include" - 1] == '\t'))
1805 p1
+= sizeof ("%include");
1806 while (*p1
== ' ' || *p1
== '\t')
1809 if (*p1
++ != '<' || p
[-2] != '>')
1810 fatal ("specs %%include syntax malformed after %ld characters",
1811 (long) (p1
- buffer
+ 1));
1814 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1815 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1818 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1819 && (p1
[sizeof "%include_noerr" - 1] == ' '
1820 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1824 p1
+= sizeof "%include_noerr";
1825 while (*p1
== ' ' || *p1
== '\t')
1828 if (*p1
++ != '<' || p
[-2] != '>')
1829 fatal ("specs %%include syntax malformed after %ld characters",
1830 (long) (p1
- buffer
+ 1));
1833 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1835 read_specs (new_filename
, FALSE
);
1836 else if (verbose_flag
)
1837 notice ("Could not find specs file %s\n", p1
);
1840 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1841 && (p1
[sizeof "%rename" - 1] == ' '
1842 || p1
[sizeof "%rename" - 1] == '\t'))
1845 struct spec_list
*sl
;
1847 /* Get original name */
1848 p1
+= sizeof "%rename";
1849 while (*p1
== ' ' || *p1
== '\t')
1852 if (! ISALPHA ((unsigned char) *p1
))
1853 fatal ("specs %%rename syntax malformed after %ld characters",
1854 (long) (p1
- buffer
));
1857 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1860 if (*p2
!= ' ' && *p2
!= '\t')
1861 fatal ("specs %%rename syntax malformed after %ld characters",
1862 (long) (p2
- buffer
));
1866 while (*p2
== ' ' || *p2
== '\t')
1869 if (! ISALPHA ((unsigned char) *p2
))
1870 fatal ("specs %%rename syntax malformed after %ld characters",
1871 (long) (p2
- buffer
));
1873 /* Get new spec name. */
1875 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1879 fatal ("specs %%rename syntax malformed after %ld characters",
1880 (long) (p3
- buffer
));
1883 for (sl
= specs
; sl
; sl
= sl
->next
)
1884 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1888 fatal ("specs %s spec was not found to be renamed", p1
);
1890 if (strcmp (p1
, p2
) == 0)
1895 notice ("rename spec %s to %s\n", p1
, p2
);
1897 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1901 set_spec (p2
, *(sl
->ptr_spec
));
1903 free ((PTR
) *(sl
->ptr_spec
));
1905 *(sl
->ptr_spec
) = "";
1910 fatal ("specs unknown %% command after %ld characters",
1911 (long) (p1
- buffer
));
1914 /* Find the colon that should end the suffix. */
1916 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1919 /* The colon shouldn't be missing. */
1921 fatal ("specs file malformed after %ld characters",
1922 (long) (p1
- buffer
));
1924 /* Skip back over trailing whitespace. */
1926 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1929 /* Copy the suffix to a string. */
1930 suffix
= save_string (p
, p2
- p
);
1931 /* Find the next line. */
1932 p
= skip_whitespace (p1
+ 1);
1934 fatal ("specs file malformed after %ld characters",
1935 (long) (p
- buffer
));
1938 /* Find next blank line or end of string. */
1939 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1942 /* Specs end at the blank line and do not include the newline. */
1943 spec
= save_string (p
, p1
- p
);
1946 /* Delete backslash-newline sequences from the spec. */
1951 if (in
[0] == '\\' && in
[1] == '\n')
1953 else if (in
[0] == '#')
1954 while (*in
&& *in
!= '\n')
1962 if (suffix
[0] == '*')
1964 if (! strcmp (suffix
, "*link_command"))
1965 link_command_spec
= spec
;
1967 set_spec (suffix
+ 1, spec
);
1971 /* Add this pair to the vector. */
1973 = ((struct compiler
*)
1974 xrealloc (compilers
,
1975 (n_compilers
+ 2) * sizeof (struct compiler
)));
1977 compilers
[n_compilers
].suffix
= suffix
;
1978 compilers
[n_compilers
].spec
= spec
;
1980 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1984 link_command_spec
= spec
;
1987 if (link_command_spec
== 0)
1988 fatal ("spec file has no spec for linking");
1991 /* Record the names of temporary files we tell compilers to write,
1992 and delete them at the end of the run. */
1994 /* This is the common prefix we use to make temp file names.
1995 It is chosen once for each run of this program.
1996 It is substituted into a spec by %g or %j.
1997 Thus, all temp file names contain this prefix.
1998 In practice, all temp file names start with this prefix.
2000 This prefix comes from the envvar TMPDIR if it is defined;
2001 otherwise, from the P_tmpdir macro if that is defined;
2002 otherwise, in /usr/tmp or /tmp;
2003 or finally the current directory if all else fails. */
2005 static const char *temp_filename
;
2007 /* Length of the prefix. */
2009 static int temp_filename_length
;
2011 /* Define the list of temporary files to delete. */
2016 struct temp_file
*next
;
2019 /* Queue of files to delete on success or failure of compilation. */
2020 static struct temp_file
*always_delete_queue
;
2021 /* Queue of files to delete on failure of compilation. */
2022 static struct temp_file
*failure_delete_queue
;
2024 /* Record FILENAME as a file to be deleted automatically.
2025 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2026 otherwise delete it in any case.
2027 FAIL_DELETE nonzero means delete it if a compilation step fails;
2028 otherwise delete it in any case. */
2031 record_temp_file (filename
, always_delete
, fail_delete
)
2032 const char *filename
;
2036 char *const name
= xstrdup (filename
);
2040 struct temp_file
*temp
;
2041 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2042 if (! strcmp (name
, temp
->name
))
2045 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2046 temp
->next
= always_delete_queue
;
2048 always_delete_queue
= temp
;
2055 struct temp_file
*temp
;
2056 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2057 if (! strcmp (name
, temp
->name
))
2060 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2061 temp
->next
= failure_delete_queue
;
2063 failure_delete_queue
= temp
;
2069 /* Delete all the temporary files whose names we previously recorded. */
2072 delete_if_ordinary (name
)
2079 printf ("Delete %s? (y or n) ", name
);
2083 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2086 if (i
== 'y' || i
== 'Y')
2088 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2089 if (unlink (name
) < 0)
2091 perror_with_name (name
);
2095 delete_temp_files ()
2097 struct temp_file
*temp
;
2099 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2100 delete_if_ordinary (temp
->name
);
2101 always_delete_queue
= 0;
2104 /* Delete all the files to be deleted on error. */
2107 delete_failure_queue ()
2109 struct temp_file
*temp
;
2111 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2112 delete_if_ordinary (temp
->name
);
2116 clear_failure_queue ()
2118 failure_delete_queue
= 0;
2121 /* Build a list of search directories from PATHS.
2122 PREFIX is a string to prepend to the list.
2123 If CHECK_DIR_P is non-zero we ensure the directory exists.
2124 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2125 It is also used by the --print-search-dirs flag. */
2128 build_search_list (paths
, prefix
, check_dir_p
)
2129 struct path_prefix
*paths
;
2133 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2135 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2136 int first_time
= TRUE
;
2137 struct prefix_list
*pprefix
;
2139 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2140 obstack_1grow (&collect_obstack
, '=');
2142 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2144 int len
= strlen (pprefix
->prefix
);
2148 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2151 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2154 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2155 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2158 if (just_machine_suffix
2159 && pprefix
->require_machine_suffix
== 2
2161 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2164 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2167 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2168 obstack_grow (&collect_obstack
, just_machine_suffix
,
2172 if (! pprefix
->require_machine_suffix
)
2175 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2178 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2182 obstack_1grow (&collect_obstack
, '\0');
2183 return obstack_finish (&collect_obstack
);
2186 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2190 putenv_from_prefixes (paths
, env_var
)
2191 struct path_prefix
*paths
;
2192 const char *env_var
;
2194 putenv (build_search_list (paths
, env_var
, 1));
2199 /* FIXME: the location independence code for VMS is hairier than this,
2200 and hasn't been written. */
2202 /* Split a filename into component directories. */
2205 split_directories (name
, ptr_num_dirs
)
2214 /* Count the number of directories. Special case MSDOS disk names as part
2215 of the initial directory. */
2217 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2218 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2223 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2225 while ((ch
= *p
++) != '\0')
2227 if (IS_DIR_SEPARATOR (ch
))
2230 while (IS_DIR_SEPARATOR (*p
))
2235 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2237 /* Now copy the directory parts. */
2240 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2241 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2243 dirs
[num_dirs
++] = save_string (p
, 3);
2246 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2249 while ((ch
= *p
++) != '\0')
2251 if (IS_DIR_SEPARATOR (ch
))
2253 while (IS_DIR_SEPARATOR (*p
))
2256 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2262 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2264 dirs
[num_dirs
] = NULL
;
2266 *ptr_num_dirs
= num_dirs
;
2271 /* Release storage held by split directories. */
2274 free_split_directories (dirs
)
2279 while (dirs
[i
] != NULL
)
2282 free ((char *) dirs
);
2285 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2286 to PREFIX starting with the directory portion of PROGNAME and a relative
2287 pathname of the difference between BIN_PREFIX and PREFIX.
2289 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2290 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2291 function will return /red/green/blue/../omega.
2293 If no relative prefix can be found, return NULL. */
2296 make_relative_prefix (progname
, bin_prefix
, prefix
)
2297 const char *progname
;
2298 const char *bin_prefix
;
2301 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2302 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2305 prog_dirs
= split_directories (progname
, &prog_num
);
2306 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2308 /* If there is no full pathname, try to find the program by checking in each
2309 of the directories specified in the PATH environment variable. */
2314 GET_ENV_PATH_LIST (temp
, "PATH");
2317 char *startp
, *endp
, *nstore
;
2318 size_t prefixlen
= strlen (temp
) + 1;
2322 nstore
= (char *) alloca (prefixlen
+ strlen (progname
) + 1);
2324 startp
= endp
= temp
;
2327 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2332 nstore
[1] = DIR_SEPARATOR
;
2337 strncpy (nstore
, startp
, endp
- startp
);
2338 if (! IS_DIR_SEPARATOR (endp
[-1]))
2340 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2341 nstore
[endp
- startp
+ 1] = 0;
2344 nstore
[endp
- startp
] = 0;
2346 strcat (nstore
, progname
);
2347 if (! access (nstore
, X_OK
)
2348 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2349 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2353 free_split_directories (prog_dirs
);
2355 prog_dirs
= split_directories (progname
, &prog_num
);
2361 endp
= startp
= endp
+ 1;
2369 /* Remove the program name from comparison of directory names. */
2372 /* Determine if the compiler is installed in the standard location, and if
2373 so, we don't need to specify relative directories. Also, if argv[0]
2374 doesn't contain any directory specifiers, there is not much we can do. */
2376 if (prog_num
== bin_num
)
2378 for (i
= 0; i
< bin_num
; i
++)
2380 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2384 if (prog_num
<= 0 || i
== bin_num
)
2387 free_split_directories (prog_dirs
);
2388 free_split_directories (bin_dirs
);
2389 prog_dirs
= bin_dirs
= (char **) 0;
2394 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2396 /* Find how many directories are in common between bin_prefix & prefix. */
2397 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2398 for (common
= 0; common
< n
; common
++)
2400 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2404 /* If there are no common directories, there can be no relative prefix. */
2407 free_split_directories (prog_dirs
);
2408 free_split_directories (bin_dirs
);
2409 free_split_directories (prefix_dirs
);
2413 /* Build up the pathnames in argv[0]. */
2414 for (i
= 0; i
< prog_num
; i
++)
2415 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2417 /* Now build up the ..'s. */
2418 for (i
= common
; i
< n
; i
++)
2420 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2421 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2424 /* Put in directories to move over to prefix. */
2425 for (i
= common
; i
< prefix_num
; i
++)
2426 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2428 free_split_directories (prog_dirs
);
2429 free_split_directories (bin_dirs
);
2430 free_split_directories (prefix_dirs
);
2432 obstack_1grow (&obstack
, '\0');
2433 return obstack_finish (&obstack
);
2437 /* Check whether NAME can be accessed in MODE. This is like access,
2438 except that it never considers directories to be executable. */
2441 access_check (name
, mode
)
2449 if (stat (name
, &st
) < 0
2450 || S_ISDIR (st
.st_mode
))
2454 return access (name
, mode
);
2457 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2458 access to check permissions.
2459 Return 0 if not found, otherwise return its name, allocated with malloc. */
2462 find_a_file (pprefix
, name
, mode
)
2463 struct path_prefix
*pprefix
;
2468 const char *const file_suffix
=
2469 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2470 struct prefix_list
*pl
;
2471 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2473 #ifdef DEFAULT_ASSEMBLER
2474 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2475 return xstrdup (DEFAULT_ASSEMBLER
);
2478 #ifdef DEFAULT_LINKER
2479 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2480 return xstrdup (DEFAULT_LINKER
);
2484 len
+= strlen (machine_suffix
);
2486 temp
= xmalloc (len
);
2488 /* Determine the filename to execute (special case for absolute paths). */
2490 if (IS_ABSOLUTE_PATHNAME (name
))
2492 if (access (name
, mode
) == 0)
2494 strcpy (temp
, name
);
2499 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2503 /* Some systems have a suffix for executable files.
2504 So try appending that first. */
2505 if (file_suffix
[0] != 0)
2507 strcpy (temp
, pl
->prefix
);
2508 strcat (temp
, machine_suffix
);
2509 strcat (temp
, name
);
2510 strcat (temp
, file_suffix
);
2511 if (access_check (temp
, mode
) == 0)
2513 if (pl
->used_flag_ptr
!= 0)
2514 *pl
->used_flag_ptr
= 1;
2519 /* Now try just the name. */
2520 strcpy (temp
, pl
->prefix
);
2521 strcat (temp
, machine_suffix
);
2522 strcat (temp
, name
);
2523 if (access_check (temp
, mode
) == 0)
2525 if (pl
->used_flag_ptr
!= 0)
2526 *pl
->used_flag_ptr
= 1;
2531 /* Certain prefixes are tried with just the machine type,
2532 not the version. This is used for finding as, ld, etc. */
2533 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2535 /* Some systems have a suffix for executable files.
2536 So try appending that first. */
2537 if (file_suffix
[0] != 0)
2539 strcpy (temp
, pl
->prefix
);
2540 strcat (temp
, just_machine_suffix
);
2541 strcat (temp
, name
);
2542 strcat (temp
, file_suffix
);
2543 if (access_check (temp
, mode
) == 0)
2545 if (pl
->used_flag_ptr
!= 0)
2546 *pl
->used_flag_ptr
= 1;
2551 strcpy (temp
, pl
->prefix
);
2552 strcat (temp
, just_machine_suffix
);
2553 strcat (temp
, name
);
2554 if (access_check (temp
, mode
) == 0)
2556 if (pl
->used_flag_ptr
!= 0)
2557 *pl
->used_flag_ptr
= 1;
2562 /* Certain prefixes can't be used without the machine suffix
2563 when the machine or version is explicitly specified. */
2564 if (! pl
->require_machine_suffix
)
2566 /* Some systems have a suffix for executable files.
2567 So try appending that first. */
2568 if (file_suffix
[0] != 0)
2570 strcpy (temp
, pl
->prefix
);
2571 strcat (temp
, name
);
2572 strcat (temp
, file_suffix
);
2573 if (access_check (temp
, mode
) == 0)
2575 if (pl
->used_flag_ptr
!= 0)
2576 *pl
->used_flag_ptr
= 1;
2581 strcpy (temp
, pl
->prefix
);
2582 strcat (temp
, name
);
2583 if (access_check (temp
, mode
) == 0)
2585 if (pl
->used_flag_ptr
!= 0)
2586 *pl
->used_flag_ptr
= 1;
2596 /* Ranking of prefixes in the sort list. -B prefixes are put before
2599 enum path_prefix_priority
2601 PREFIX_PRIORITY_B_OPT
,
2602 PREFIX_PRIORITY_LAST
2605 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2606 order according to PRIORITY. Within each PRIORITY, new entries are
2609 If WARN is nonzero, we will warn if no file is found
2610 through this prefix. WARN should point to an int
2611 which will be set to 1 if this entry is used.
2613 COMPONENT is the value to be passed to update_path.
2615 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2616 the complete value of machine_suffix.
2617 2 means try both machine_suffix and just_machine_suffix. */
2620 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2621 struct path_prefix
*pprefix
;
2623 const char *component
;
2624 /* enum prefix_priority */ int priority
;
2625 int require_machine_suffix
;
2628 struct prefix_list
*pl
, **prev
;
2631 for (prev
= &pprefix
->plist
;
2632 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2633 prev
= &(*prev
)->next
)
2636 /* Keep track of the longest prefix */
2638 prefix
= update_path (prefix
, component
);
2639 len
= strlen (prefix
);
2640 if (len
> pprefix
->max_len
)
2641 pprefix
->max_len
= len
;
2643 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2644 pl
->prefix
= prefix
;
2645 pl
->require_machine_suffix
= require_machine_suffix
;
2646 pl
->used_flag_ptr
= warn
;
2647 pl
->priority
= priority
;
2651 /* Insert after PREV */
2656 /* Execute the command specified by the arguments on the current line of spec.
2657 When using pipes, this includes several piped-together commands
2658 with `|' between them.
2660 Return 0 if successful, -1 if failed. */
2666 int n_commands
; /* # of command. */
2670 const char *prog
; /* program name. */
2671 const char **argv
; /* vector of args. */
2672 int pid
; /* pid of process for this command. */
2675 struct command
*commands
; /* each command buffer with above info. */
2677 /* Count # of piped commands. */
2678 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2679 if (strcmp (argbuf
[i
], "|") == 0)
2682 /* Get storage for each command. */
2683 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2685 /* Split argbuf into its separate piped processes,
2686 and record info about each one.
2687 Also search for the programs that are to be run. */
2689 commands
[0].prog
= argbuf
[0]; /* first command. */
2690 commands
[0].argv
= &argbuf
[0];
2691 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2694 commands
[0].argv
[0] = string
;
2696 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2697 if (strcmp (argbuf
[i
], "|") == 0)
2698 { /* each command. */
2699 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2700 fatal ("-pipe not supported");
2702 argbuf
[i
] = 0; /* termination of command args. */
2703 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2704 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2705 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2707 commands
[n_commands
].argv
[0] = string
;
2711 argbuf
[argbuf_index
] = 0;
2713 /* If -v, print what we are about to do, and maybe query. */
2717 /* For help listings, put a blank line between sub-processes. */
2718 if (print_help_list
)
2719 fputc ('\n', stderr
);
2721 /* Print each piped command as a separate line. */
2722 for (i
= 0; i
< n_commands
; i
++)
2724 const char *const *j
;
2726 for (j
= commands
[i
].argv
; *j
; j
++)
2727 fprintf (stderr
, " %s", *j
);
2729 /* Print a pipe symbol after all but the last command. */
2730 if (i
+ 1 != n_commands
)
2731 fprintf (stderr
, " |");
2732 fprintf (stderr
, "\n");
2736 notice ("\nGo ahead? (y or n) ");
2740 while (getchar () != '\n')
2743 if (i
!= 'y' && i
!= 'Y')
2748 /* Run each piped subprocess. */
2750 for (i
= 0; i
< n_commands
; i
++)
2752 char *errmsg_fmt
, *errmsg_arg
;
2753 const char *string
= commands
[i
].argv
[0];
2755 /* For some bizarre reason, the second argument of execvp() is
2756 char *const *, not const char *const *. */
2757 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2758 programname
, temp_filename
,
2759 &errmsg_fmt
, &errmsg_arg
,
2760 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2761 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2762 | (string
== commands
[i
].prog
2763 ? PEXECUTE_SEARCH
: 0)
2764 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2766 if (commands
[i
].pid
== -1)
2767 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2769 if (string
!= commands
[i
].prog
)
2770 free ((PTR
) string
);
2775 /* Wait for all the subprocesses to finish.
2776 We don't care what order they finish in;
2777 we know that N_COMMANDS waits will get them all.
2778 Ignore subprocesses that we don't know about,
2779 since they can be spawned by the process that exec'ed us. */
2783 #ifdef HAVE_GETRUSAGE
2785 double ut
= 0.0, st
= 0.0;
2788 for (i
= 0; i
< n_commands
;)
2794 pid
= pwait (commands
[i
].pid
, &status
, 0);
2798 #ifdef HAVE_GETRUSAGE
2801 /* getrusage returns the total resource usage of all children
2802 up to now. Copy the previous values into prus, get the
2803 current statistics, then take the difference. */
2806 getrusage (RUSAGE_CHILDREN
, &rus
);
2807 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2808 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2809 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2811 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2812 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2813 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2817 for (j
= 0; j
< n_commands
; j
++)
2818 if (commands
[j
].pid
== pid
)
2821 if (WIFSIGNALED (status
))
2824 /* SIGPIPE is a special case. It happens in -pipe mode
2825 when the compiler dies before the preprocessor is
2826 done, or the assembler dies before the compiler is
2827 done. There's generally been an error already, and
2828 this is just fallout. So don't generate another error
2829 unless we would otherwise have succeeded. */
2830 if (WTERMSIG (status
) == SIGPIPE
2831 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2836 Internal error: %s (program %s)\n\
2837 Please submit a full bug report.\n\
2838 See %s for instructions.",
2839 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2844 else if (WIFEXITED (status
)
2845 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2847 if (WEXITSTATUS (status
) > greatest_status
)
2848 greatest_status
= WEXITSTATUS (status
);
2851 #ifdef HAVE_GETRUSAGE
2852 if (report_times
&& ut
+ st
!= 0)
2853 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2862 /* Find all the switches given to us
2863 and make a vector describing them.
2864 The elements of the vector are strings, one per switch given.
2865 If a switch uses following arguments, then the `part1' field
2866 is the switch itself and the `args' field
2867 is a null-terminated vector containing the following arguments.
2868 The `live_cond' field is:
2870 1 if the switch is true in a conditional spec,
2871 -1 if false (overridden by a later switch)
2872 -2 if this switch should be ignored (used in %{<S})
2873 The `validated' field is nonzero if any spec has looked at this switch;
2874 if it remains zero at the end of the run, it must be meaningless. */
2877 #define SWITCH_FALSE -1
2878 #define SWITCH_IGNORE -2
2879 #define SWITCH_LIVE 1
2886 unsigned char validated
;
2887 unsigned char ordering
;
2890 static struct switchstr
*switches
;
2892 static int n_switches
;
2897 const char *language
;
2900 /* Also a vector of input files specified. */
2902 static struct infile
*infiles
;
2906 /* This counts the number of libraries added by lang_specific_driver, so that
2907 we can tell if there were any user supplied any files or libraries. */
2909 static int added_libraries
;
2911 /* And a vector of corresponding output files is made up later. */
2913 const char **outfiles
;
2915 /* Used to track if none of the -B paths are used. */
2918 /* Used to track if standard path isn't used and -b or -V is specified. */
2919 static int warn_std
;
2921 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2922 static int *warn_std_ptr
= 0;
2924 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2926 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2927 is true if we should look for an executable suffix as well. */
2930 convert_filename (name
, do_exe
)
2932 int do_exe ATTRIBUTE_UNUSED
;
2934 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2942 len
= strlen (name
);
2944 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2945 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2947 && name
[len
- 2] == '.'
2948 && name
[len
- 1] == 'o')
2950 obstack_grow (&obstack
, name
, len
- 2);
2951 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2952 name
= obstack_finish (&obstack
);
2956 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2957 /* If there is no filetype, make it the executable suffix (which includes
2958 the "."). But don't get confused if we have just "-o". */
2959 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2962 for (i
= len
- 1; i
>= 0; i
--)
2963 if (IS_DIR_SEPARATOR (name
[i
]))
2966 for (i
++; i
< len
; i
++)
2970 obstack_grow (&obstack
, name
, len
);
2971 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2972 strlen (TARGET_EXECUTABLE_SUFFIX
));
2973 name
= obstack_finish (&obstack
);
2980 /* Display the command line switches accepted by gcc. */
2984 printf (_("Usage: %s [options] file...\n"), programname
);
2985 fputs (_("Options:\n"), stdout
);
2987 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2988 fputs (_(" --help Display this information\n"), stdout
);
2989 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2991 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2992 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2993 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2994 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2995 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2996 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2997 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2998 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2999 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3001 -print-multi-lib Display the mapping between command line options and\n\
3002 multiple library search directories\n"), stdout
);
3003 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3004 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3005 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3006 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3007 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3008 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3009 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3010 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout
);
3011 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3012 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3013 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3014 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3015 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3016 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3017 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3018 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3019 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3021 -x <language> Specify the language of the following input files\n\
3022 Permissable languages include: c c++ assembler none\n\
3023 'none' means revert to the default behaviour of\n\
3024 guessing the language based on the file's extension\n\
3028 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3029 passed on to the various sub-processes invoked by %s. In order to pass\n\
3030 other options on to these processes the -W<letter> options must be used.\n\
3033 /* The rest of the options are displayed by invocations of the various
3038 add_preprocessor_option (option
, len
)
3042 n_preprocessor_options
++;
3044 if (! preprocessor_options
)
3045 preprocessor_options
3046 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3048 preprocessor_options
3049 = (char **) xrealloc (preprocessor_options
,
3050 n_preprocessor_options
* sizeof (char *));
3052 preprocessor_options
[n_preprocessor_options
- 1] =
3053 save_string (option
, len
);
3057 add_assembler_option (option
, len
)
3061 n_assembler_options
++;
3063 if (! assembler_options
)
3065 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3068 = (char **) xrealloc (assembler_options
,
3069 n_assembler_options
* sizeof (char *));
3071 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3075 add_linker_option (option
, len
)
3081 if (! linker_options
)
3083 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3086 = (char **) xrealloc (linker_options
,
3087 n_linker_options
* sizeof (char *));
3089 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3092 /* Create the vector `switches' and its contents.
3093 Store its length in `n_switches'. */
3096 process_command (argc
, argv
)
3098 const char *const *argv
;
3103 const char *spec_lang
= 0;
3104 int last_language_n_infiles
;
3107 int lang_n_infiles
= 0;
3108 #ifdef MODIFY_TARGET_NAME
3109 int is_modify_target_name
;
3113 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3117 added_libraries
= 0;
3119 /* Figure compiler version from version string. */
3121 compiler_version
= temp1
= xstrdup (version_string
);
3123 for (; *temp1
; ++temp1
)
3132 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3133 see if we can create it from the pathname specified in argv[0]. */
3136 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3137 if (!gcc_exec_prefix
)
3139 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3140 standard_exec_prefix
);
3141 if (gcc_exec_prefix
)
3142 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3146 if (gcc_exec_prefix
)
3148 int len
= strlen (gcc_exec_prefix
);
3150 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3151 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3153 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3154 if (IS_DIR_SEPARATOR (*temp
)
3155 && strncmp (temp
+ 1, "lib", 3) == 0
3156 && IS_DIR_SEPARATOR (temp
[4])
3157 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3158 len
-= sizeof ("/lib/gcc-lib/") - 1;
3161 set_std_prefix (gcc_exec_prefix
, len
);
3162 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3163 PREFIX_PRIORITY_LAST
, 0, NULL
);
3164 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3165 PREFIX_PRIORITY_LAST
, 0, NULL
);
3168 /* COMPILER_PATH and LIBRARY_PATH have values
3169 that are lists of directory names with colons. */
3171 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
3174 const char *startp
, *endp
;
3175 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3177 startp
= endp
= temp
;
3180 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3182 strncpy (nstore
, startp
, endp
- startp
);
3184 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3185 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3187 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3188 nstore
[endp
- startp
+ 1] = 0;
3191 nstore
[endp
- startp
] = 0;
3192 add_prefix (&exec_prefixes
, nstore
, 0,
3193 PREFIX_PRIORITY_LAST
, 0, NULL
);
3194 add_prefix (&include_prefixes
,
3195 concat (nstore
, "include", NULL
),
3196 0, PREFIX_PRIORITY_LAST
, 0, NULL
);
3199 endp
= startp
= endp
+ 1;
3206 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3207 if (temp
&& *cross_compile
== '0')
3209 const char *startp
, *endp
;
3210 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3212 startp
= endp
= temp
;
3215 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3217 strncpy (nstore
, startp
, endp
- startp
);
3219 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3220 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3222 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3223 nstore
[endp
- startp
+ 1] = 0;
3226 nstore
[endp
- startp
] = 0;
3227 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3228 PREFIX_PRIORITY_LAST
, 0, NULL
);
3231 endp
= startp
= endp
+ 1;
3238 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3239 GET_ENV_PATH_LIST (temp
, "LPATH");
3240 if (temp
&& *cross_compile
== '0')
3242 const char *startp
, *endp
;
3243 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3245 startp
= endp
= temp
;
3248 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3250 strncpy (nstore
, startp
, endp
- startp
);
3252 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3253 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3255 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3256 nstore
[endp
- startp
+ 1] = 0;
3259 nstore
[endp
- startp
] = 0;
3260 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3261 PREFIX_PRIORITY_LAST
, 0, NULL
);
3264 endp
= startp
= endp
+ 1;
3271 /* Convert new-style -- options to old-style. */
3272 translate_options (&argc
, &argv
);
3274 /* Do language-specific adjustment/addition of flags. */
3275 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3277 /* Scan argv twice. Here, the first time, just count how many switches
3278 there will be in their vector, and how many input files in theirs.
3279 Also parse any switches that determine the configuration name, such as -b.
3280 Here we also parse the switches that cc itself uses (e.g. -v). */
3282 for (i
= 1; i
< argc
; i
++)
3284 if (! strcmp (argv
[i
], "-dumpspecs"))
3286 struct spec_list
*sl
;
3288 for (sl
= specs
; sl
; sl
= sl
->next
)
3289 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3290 if (link_command_spec
)
3291 printf ("*link_command:\n%s\n\n", link_command_spec
);
3294 else if (! strcmp (argv
[i
], "-dumpversion"))
3296 printf ("%s\n", spec_version
);
3299 else if (! strcmp (argv
[i
], "-dumpmachine"))
3301 printf ("%s\n", spec_machine
);
3304 else if (strcmp (argv
[i
], "-fhelp") == 0)
3306 /* translate_options () has turned --help into -fhelp. */
3307 print_help_list
= 1;
3309 /* We will be passing a dummy file on to the sub-processes. */
3313 add_preprocessor_option ("--help", 6);
3314 add_assembler_option ("--help", 6);
3315 add_linker_option ("--help", 6);
3317 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3319 /* translate_options() has turned --target-help into -ftarget-help. */
3320 target_help_flag
= 1;
3322 /* We will be passing a dummy file on to the sub-processes. */
3326 add_preprocessor_option ("--target-help", 13);
3327 add_assembler_option ("--target-help", 13);
3328 add_linker_option ("--target-help", 13);
3330 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3332 pass_exit_codes
= 1;
3335 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3336 print_search_dirs
= 1;
3337 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3338 print_file_name
= "libgcc.a";
3339 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3340 print_file_name
= argv
[i
] + 17;
3341 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3342 print_prog_name
= argv
[i
] + 17;
3343 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3344 print_multi_lib
= 1;
3345 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3346 print_multi_directory
= 1;
3347 else if (! strncmp (argv
[i
], "-Wa,", 4))
3350 /* Pass the rest of this option to the assembler. */
3352 /* Split the argument at commas. */
3354 for (j
= 4; argv
[i
][j
]; j
++)
3355 if (argv
[i
][j
] == ',')
3357 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3361 /* Record the part after the last comma. */
3362 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3364 else if (! strncmp (argv
[i
], "-Wp,", 4))
3367 /* Pass the rest of this option to the preprocessor. */
3369 /* Split the argument at commas. */
3371 for (j
= 4; argv
[i
][j
]; j
++)
3372 if (argv
[i
][j
] == ',')
3374 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3378 /* Record the part after the last comma. */
3379 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3381 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3382 /* The +e options to the C++ front-end. */
3384 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3387 /* Split the argument at commas. */
3388 for (j
= 3; argv
[i
][j
]; j
++)
3389 n_infiles
+= (argv
[i
][j
] == ',');
3391 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3394 fatal ("argument to `-Xlinker' is missing");
3399 else if (strcmp (argv
[i
], "-l") == 0)
3402 fatal ("argument to `-l' is missing");
3407 else if (strncmp (argv
[i
], "-l", 2) == 0)
3409 else if (strcmp (argv
[i
], "-save-temps") == 0)
3411 save_temps_flag
= 1;
3414 else if (strcmp (argv
[i
], "-specs") == 0)
3416 struct user_specs
*user
= (struct user_specs
*)
3417 xmalloc (sizeof (struct user_specs
));
3419 fatal ("argument to `-specs' is missing");
3421 user
->next
= (struct user_specs
*) 0;
3422 user
->filename
= argv
[i
];
3423 if (user_specs_tail
)
3424 user_specs_tail
->next
= user
;
3426 user_specs_head
= user
;
3427 user_specs_tail
= user
;
3429 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3431 struct user_specs
*user
= (struct user_specs
*)
3432 xmalloc (sizeof (struct user_specs
));
3433 if (strlen (argv
[i
]) == 7)
3434 fatal ("argument to `-specs=' is missing");
3436 user
->next
= (struct user_specs
*) 0;
3437 user
->filename
= argv
[i
] + 7;
3438 if (user_specs_tail
)
3439 user_specs_tail
->next
= user
;
3441 user_specs_head
= user
;
3442 user_specs_tail
= user
;
3444 else if (strcmp (argv
[i
], "-time") == 0)
3446 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3448 const char *p
= &argv
[i
][1];
3455 if (p
[1] == 0 && i
+ 1 == argc
)
3456 fatal ("argument to `-b' is missing");
3458 spec_machine
= argv
[++i
];
3460 spec_machine
= p
+ 1;
3462 warn_std_ptr
= &warn_std
;
3470 if (p
[1] == 0 && i
+ 1 == argc
)
3471 fatal ("argument to `-B' is missing");
3477 len
= strlen (value
);
3479 /* Catch the case where the user has forgotten to append a
3480 directory separator to the path. Note, they may be using
3481 -B to add an executable name prefix, eg "i386-elf-", in
3482 order to distinguish between multiple installations of
3483 GCC in the same directory. Hence we must check to see
3484 if appending a directory separator actually makes a
3485 valid directory name. */
3486 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3487 && is_directory (value
, "", 0))
3489 char *tmp
= xmalloc (len
+ 2);
3490 strcpy (tmp
, value
);
3491 tmp
[len
] = DIR_SEPARATOR
;
3496 /* As a kludge, if the arg is "[foo/]stageN/", just
3497 add "[foo/]include" to the include prefix. */
3500 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3501 && strncmp (value
+ len
- 7, "stage", 5) == 0
3502 && ISDIGIT (value
[len
- 2])
3503 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3506 add_prefix (&include_prefixes
, "include", NULL
,
3507 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3510 char * string
= xmalloc (len
+ 1);
3512 strncpy (string
, value
, len
- 7);
3513 strcpy (string
+ len
- 7, "include");
3514 add_prefix (&include_prefixes
, string
, NULL
,
3515 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3519 add_prefix (&exec_prefixes
, value
, NULL
,
3520 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3521 add_prefix (&startfile_prefixes
, value
, NULL
,
3522 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3523 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3524 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3529 case 'v': /* Print our subcommands and print versions. */
3531 /* If they do anything other than exactly `-v', don't set
3532 verbose_flag; rather, continue on to give the error. */
3540 if (p
[1] == 0 && i
+ 1 == argc
)
3541 fatal ("argument to `-V' is missing");
3543 spec_version
= argv
[++i
];
3545 spec_version
= p
+ 1;
3546 compiler_version
= spec_version
;
3547 warn_std_ptr
= &warn_std
;
3549 /* Validate the version number. Use the same checks
3550 done when inserting it into a spec.
3552 The format of the version string is
3553 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3555 const char *v
= compiler_version
;
3557 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3558 while (! ISDIGIT (*v
))
3561 if (v
> compiler_version
&& v
[-1] != '-')
3562 fatal ("invalid version number format");
3564 /* Set V after the first period. */
3565 while (ISDIGIT (*v
))
3569 fatal ("invalid version number format");
3572 while (ISDIGIT (*v
))
3575 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3576 fatal ("invalid version number format");
3592 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3597 /* Forward scan, just in case -S or -c is specified
3604 if (argv
[j
][0] == '-')
3606 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3612 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3613 j
+= skip
- (argv
[j
][2] != 0);
3614 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3621 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3623 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
);
3625 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3632 #ifdef MODIFY_TARGET_NAME
3633 is_modify_target_name
= 0;
3636 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3637 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3640 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3641 + strlen (spec_machine
));
3644 int made_addition
= 0;
3646 is_modify_target_name
= 1;
3647 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3649 if (modify_target
[j
].add_del
== DELETE
3650 && (! strncmp (q
, modify_target
[j
].str
,
3651 strlen (modify_target
[j
].str
))))
3652 p
+= strlen (modify_target
[j
].str
);
3653 else if (modify_target
[j
].add_del
== ADD
3654 && ! made_addition
&& *p
== '-')
3656 for (r
= modify_target
[j
].str
; *r
!= 0; )
3664 spec_machine
= new_name
;
3667 if (is_modify_target_name
)
3673 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3674 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3675 else if (WORD_SWITCH_TAKES_ARG (p
))
3676 i
+= WORD_SWITCH_TAKES_ARG (p
);
3686 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3687 fatal ("cannot specify -o with -c or -S and multiple compilations");
3689 /* Set up the search paths before we go looking for config files. */
3691 /* These come before the md prefixes so that we will find gcc's subcommands
3692 (such as cpp) rather than those of the host system. */
3693 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3694 as well as trying the machine and the version. */
3696 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3697 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3698 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3699 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3700 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3701 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3704 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3705 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3706 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3707 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3709 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3710 dir_separator_str
, NULL
);
3712 /* If tooldir is relative, base it on exec_prefixes. A relative
3713 tooldir lets us move the installed tree as a unit.
3715 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3716 directories, so that we can search both the user specified directory
3717 and the standard place. */
3719 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3721 if (gcc_exec_prefix
)
3723 char *gcc_exec_tooldir_prefix
3724 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3725 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3727 add_prefix (&exec_prefixes
,
3728 concat (gcc_exec_tooldir_prefix
, "bin",
3729 dir_separator_str
, NULL
),
3730 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3731 add_prefix (&startfile_prefixes
,
3732 concat (gcc_exec_tooldir_prefix
, "lib",
3733 dir_separator_str
, NULL
),
3734 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3737 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3738 dir_separator_str
, spec_version
,
3739 dir_separator_str
, tooldir_prefix
, NULL
);
3742 add_prefix (&exec_prefixes
,
3743 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3744 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3745 add_prefix (&startfile_prefixes
,
3746 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3747 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3749 /* More prefixes are enabled in main, after we read the specs file
3750 and determine whether this is cross-compilation or not. */
3752 /* Then create the space for the vectors and scan again. */
3754 switches
= ((struct switchstr
*)
3755 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3756 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3759 last_language_n_infiles
= -1;
3761 /* This, time, copy the text of each switch and store a pointer
3762 to the copy in the vector of switches.
3763 Store all the infiles in their vector. */
3765 for (i
= 1; i
< argc
; i
++)
3767 /* Just skip the switches that were handled by the preceding loop. */
3768 #ifdef MODIFY_TARGET_NAME
3769 is_modify_target_name
= 0;
3771 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3772 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3773 is_modify_target_name
= 1;
3775 if (is_modify_target_name
)
3779 if (! strncmp (argv
[i
], "-Wa,", 4))
3781 else if (! strncmp (argv
[i
], "-Wp,", 4))
3783 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3785 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3787 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3789 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3791 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3793 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3795 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3797 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3799 /* Create a dummy input file, so that we can pass --target-help on to
3800 the various sub-processes. */
3801 infiles
[n_infiles
].language
= "c";
3802 infiles
[n_infiles
++].name
= "target-dummy";
3804 /* Preserve the --target-help switch so that it can be caught by
3805 the cc1 spec string. */
3806 switches
[n_switches
].part1
= "--target-help";
3807 switches
[n_switches
].args
= 0;
3808 switches
[n_switches
].live_cond
= SWITCH_OK
;
3809 switches
[n_switches
].validated
= 0;
3813 else if (strcmp (argv
[i
], "-fhelp") == 0)
3817 /* Create a dummy input file, so that we can pass --help on to
3818 the various sub-processes. */
3819 infiles
[n_infiles
].language
= "c";
3820 infiles
[n_infiles
++].name
= "help-dummy";
3822 /* Preserve the --help switch so that it can be caught by the
3824 switches
[n_switches
].part1
= "--help";
3825 switches
[n_switches
].args
= 0;
3826 switches
[n_switches
].live_cond
= SWITCH_OK
;
3827 switches
[n_switches
].validated
= 0;
3832 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3834 /* Compensate for the +e options to the C++ front-end;
3835 they're there simply for cfront call-compatibility. We do
3836 some magic in default_compilers to pass them down properly.
3837 Note we deliberately start at the `+' here, to avoid passing
3838 -e0 or -e1 down into the linker. */
3839 switches
[n_switches
].part1
= &argv
[i
][0];
3840 switches
[n_switches
].args
= 0;
3841 switches
[n_switches
].live_cond
= SWITCH_OK
;
3842 switches
[n_switches
].validated
= 0;
3845 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3848 /* Split the argument at commas. */
3850 for (j
= 4; argv
[i
][j
]; j
++)
3851 if (argv
[i
][j
] == ',')
3853 infiles
[n_infiles
].language
= "*";
3854 infiles
[n_infiles
++].name
3855 = save_string (argv
[i
] + prev
, j
- prev
);
3858 /* Record the part after the last comma. */
3859 infiles
[n_infiles
].language
= "*";
3860 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3862 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3864 infiles
[n_infiles
].language
= "*";
3865 infiles
[n_infiles
++].name
= argv
[++i
];
3867 else if (strcmp (argv
[i
], "-l") == 0)
3868 { /* POSIX allows separation of -l and the lib arg;
3869 canonicalize by concatenating -l with its arg */
3870 infiles
[n_infiles
].language
= "*";
3871 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3873 else if (strncmp (argv
[i
], "-l", 2) == 0)
3875 infiles
[n_infiles
].language
= "*";
3876 infiles
[n_infiles
++].name
= argv
[i
];
3878 else if (strcmp (argv
[i
], "-specs") == 0)
3880 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3882 else if (strcmp (argv
[i
], "-time") == 0)
3884 else if ((save_temps_flag
|| report_times
)
3885 && strcmp (argv
[i
], "-pipe") == 0)
3887 /* -save-temps overrides -pipe, so that temp files are produced */
3888 if (save_temps_flag
)
3889 error ("warning: -pipe ignored because -save-temps specified");
3890 /* -time overrides -pipe because we can't get correct stats when
3891 multiple children are running at once. */
3892 else if (report_times
)
3893 error ("warning: -pipe ignored because -time specified");
3895 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3897 const char *p
= &argv
[i
][1];
3902 if (p
[1] == 0 && i
+ 1 == argc
)
3903 fatal ("argument to `-x' is missing");
3905 spec_lang
= argv
[++i
];
3908 if (! strcmp (spec_lang
, "none"))
3909 /* Suppress the warning if -xnone comes after the last input
3910 file, because alternate command interfaces like g++ might
3911 find it useful to place -xnone after each input file. */
3914 last_language_n_infiles
= n_infiles
;
3917 switches
[n_switches
].part1
= p
;
3918 /* Deal with option arguments in separate argv elements. */
3919 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3920 || WORD_SWITCH_TAKES_ARG (p
))
3923 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3927 /* Count only the option arguments in separate argv elements. */
3928 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3930 if (i
+ n_args
>= argc
)
3931 fatal ("argument to `-%s' is missing", p
);
3932 switches
[n_switches
].args
3933 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3935 switches
[n_switches
].args
[j
++] = argv
[++i
];
3936 /* Null-terminate the vector. */
3937 switches
[n_switches
].args
[j
] = 0;
3939 else if (strchr (switches_need_spaces
, c
))
3941 /* On some systems, ld cannot handle some options without
3942 a space. So split the option from its argument. */
3943 char *part1
= (char *) xmalloc (2);
3947 switches
[n_switches
].part1
= part1
;
3948 switches
[n_switches
].args
3949 = (const char **) xmalloc (2 * sizeof (const char *));
3950 switches
[n_switches
].args
[0] = xstrdup (p
+1);
3951 switches
[n_switches
].args
[1] = 0;
3954 switches
[n_switches
].args
= 0;
3956 switches
[n_switches
].live_cond
= SWITCH_OK
;
3957 switches
[n_switches
].validated
= 0;
3958 switches
[n_switches
].ordering
= 0;
3959 /* These are always valid, since gcc.c itself understands it. */
3960 if (!strcmp (p
, "save-temps")
3961 || !strcmp (p
, "static-libgcc")
3962 || !strcmp (p
, "shared-libgcc"))
3963 switches
[n_switches
].validated
= 1;
3966 char ch
= switches
[n_switches
].part1
[0];
3967 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3968 switches
[n_switches
].validated
= 1;
3974 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3975 argv
[i
] = convert_filename (argv
[i
], 0);
3978 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
3980 perror_with_name (argv
[i
]);
3985 infiles
[n_infiles
].language
= spec_lang
;
3986 infiles
[n_infiles
++].name
= argv
[i
];
3991 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3992 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3994 switches
[n_switches
].part1
= 0;
3995 infiles
[n_infiles
].name
= 0;
3998 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
3999 and place that in the environment. */
4002 set_collect_gcc_options ()
4007 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4009 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4010 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4013 for (i
= 0; (int) i
< n_switches
; i
++)
4015 const char *const *args
;
4018 obstack_grow (&collect_obstack
, " ", 1);
4022 /* Ignore elided switches. */
4023 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4026 obstack_grow (&collect_obstack
, "'-", 2);
4027 q
= switches
[i
].part1
;
4028 while ((p
= strchr (q
, '\'')))
4030 obstack_grow (&collect_obstack
, q
, p
- q
);
4031 obstack_grow (&collect_obstack
, "'\\''", 4);
4034 obstack_grow (&collect_obstack
, q
, strlen (q
));
4035 obstack_grow (&collect_obstack
, "'", 1);
4037 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4039 obstack_grow (&collect_obstack
, " '", 2);
4041 while ((p
= strchr (q
, '\'')))
4043 obstack_grow (&collect_obstack
, q
, p
- q
);
4044 obstack_grow (&collect_obstack
, "'\\''", 4);
4047 obstack_grow (&collect_obstack
, q
, strlen (q
));
4048 obstack_grow (&collect_obstack
, "'", 1);
4051 obstack_grow (&collect_obstack
, "\0", 1);
4052 putenv (obstack_finish (&collect_obstack
));
4055 /* Process a spec string, accumulating and running commands. */
4057 /* These variables describe the input file name.
4058 input_file_number is the index on outfiles of this file,
4059 so that the output file name can be stored for later use by %o.
4060 input_basename is the start of the part of the input file
4061 sans all directory names, and basename_length is the number
4062 of characters starting there excluding the suffix .c or whatever. */
4064 const char *input_filename
;
4065 static int input_file_number
;
4066 size_t input_filename_length
;
4067 static int basename_length
;
4068 static int suffixed_basename_length
;
4069 static const char *input_basename
;
4070 static const char *input_suffix
;
4072 /* The compiler used to process the current input file. */
4073 static struct compiler
*input_file_compiler
;
4075 /* These are variables used within do_spec and do_spec_1. */
4077 /* Nonzero if an arg has been started and not yet terminated
4078 (with space, tab or newline). */
4079 static int arg_going
;
4081 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4082 is a temporary file name. */
4083 static int delete_this_arg
;
4085 /* Nonzero means %w has been seen; the next arg to be terminated
4086 is the output file name of this compilation. */
4087 static int this_is_output_file
;
4089 /* Nonzero means %s has been seen; the next arg to be terminated
4090 is the name of a library file and we should try the standard
4091 search dirs for it. */
4092 static int this_is_library_file
;
4094 /* Nonzero means that the input of this command is coming from a pipe. */
4095 static int input_from_pipe
;
4097 /* Nonnull means substitute this for any suffix when outputting a switches
4099 static const char *suffix_subst
;
4101 /* Process the spec SPEC and run the commands specified therein.
4102 Returns 0 if the spec is successfully processed; -1 if failed. */
4112 delete_this_arg
= 0;
4113 this_is_output_file
= 0;
4114 this_is_library_file
= 0;
4115 input_from_pipe
= 0;
4116 suffix_subst
= NULL
;
4118 value
= do_spec_1 (spec
, 0, NULL
);
4120 /* Force out any unfinished command.
4121 If -pipe, this forces out the last command if it ended in `|'. */
4124 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4127 set_collect_gcc_options ();
4129 if (argbuf_index
> 0)
4136 /* Process the sub-spec SPEC as a portion of a larger spec.
4137 This is like processing a whole spec except that we do
4138 not initialize at the beginning and we do not supply a
4139 newline by default at the end.
4140 INSWITCH nonzero means don't process %-sequences in SPEC;
4141 in this case, % is treated as an ordinary character.
4142 This is used while substituting switches.
4143 INSWITCH nonzero also causes SPC not to terminate an argument.
4145 Value is zero unless a line was finished
4146 and the command on that line reported an error. */
4149 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4152 const char *soft_matched_part
;
4154 const char *p
= spec
;
4161 /* If substituting a switch, treat all chars like letters.
4162 Otherwise, NL, SPC, TAB and % are special. */
4163 switch (inswitch
? 'a' : c
)
4166 /* End of line: finish any pending argument,
4167 then run the pending command if one has been started. */
4170 obstack_1grow (&obstack
, 0);
4171 string
= obstack_finish (&obstack
);
4172 if (this_is_library_file
)
4173 string
= find_file (string
);
4174 store_arg (string
, delete_this_arg
, this_is_output_file
);
4175 if (this_is_output_file
)
4176 outfiles
[input_file_number
] = string
;
4180 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4182 for (i
= 0; i
< n_switches
; i
++)
4183 if (!strcmp (switches
[i
].part1
, "pipe"))
4186 /* A `|' before the newline means use a pipe here,
4187 but only if -pipe was specified.
4188 Otherwise, execute now and don't pass the `|' as an arg. */
4191 input_from_pipe
= 1;
4192 switches
[i
].validated
= 1;
4199 set_collect_gcc_options ();
4201 if (argbuf_index
> 0)
4207 /* Reinitialize for a new command, and for a new argument. */
4210 delete_this_arg
= 0;
4211 this_is_output_file
= 0;
4212 this_is_library_file
= 0;
4213 input_from_pipe
= 0;
4217 /* End any pending argument. */
4220 obstack_1grow (&obstack
, 0);
4221 string
= obstack_finish (&obstack
);
4222 if (this_is_library_file
)
4223 string
= find_file (string
);
4224 store_arg (string
, delete_this_arg
, this_is_output_file
);
4225 if (this_is_output_file
)
4226 outfiles
[input_file_number
] = string
;
4230 obstack_1grow (&obstack
, c
);
4236 /* Space or tab ends an argument if one is pending. */
4239 obstack_1grow (&obstack
, 0);
4240 string
= obstack_finish (&obstack
);
4241 if (this_is_library_file
)
4242 string
= find_file (string
);
4243 store_arg (string
, delete_this_arg
, this_is_output_file
);
4244 if (this_is_output_file
)
4245 outfiles
[input_file_number
] = string
;
4247 /* Reinitialize for a new argument. */
4249 delete_this_arg
= 0;
4250 this_is_output_file
= 0;
4251 this_is_library_file
= 0;
4258 fatal ("Invalid specification! Bug in cc");
4261 obstack_grow (&obstack
, input_basename
, basename_length
);
4266 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4271 delete_this_arg
= 2;
4274 /* Dump out the directories specified with LIBRARY_PATH,
4275 followed by the absolute directories
4276 that we search for startfiles. */
4279 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4280 size_t bufsize
= 100;
4281 char *buffer
= (char *) xmalloc (bufsize
);
4284 for (; pl
; pl
= pl
->next
)
4286 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4287 /* Used on systems which record the specified -L dirs
4288 and use them to search for dynamic linking. */
4289 /* Relative directories always come from -B,
4290 and it is better not to use them for searching
4291 at run time. In particular, stage1 loses. */
4292 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4295 /* Try subdirectory if there is one. */
4296 if (multilib_dir
!= NULL
)
4300 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4302 bufsize
= (strlen (pl
->prefix
)
4303 + strlen (machine_suffix
)) * 2 + 1;
4304 buffer
= (char *) xrealloc (buffer
, bufsize
);
4305 strcpy (buffer
, pl
->prefix
);
4306 strcat (buffer
, machine_suffix
);
4307 if (is_directory (buffer
, multilib_dir
, 1))
4309 do_spec_1 ("-L", 0, NULL
);
4310 #ifdef SPACE_AFTER_L_OPTION
4311 do_spec_1 (" ", 0, NULL
);
4313 do_spec_1 (buffer
, 1, NULL
);
4314 do_spec_1 (multilib_dir
, 1, NULL
);
4315 /* Make this a separate argument. */
4316 do_spec_1 (" ", 0, NULL
);
4319 if (!pl
->require_machine_suffix
)
4321 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4323 do_spec_1 ("-L", 0, NULL
);
4324 #ifdef SPACE_AFTER_L_OPTION
4325 do_spec_1 (" ", 0, NULL
);
4327 do_spec_1 (pl
->prefix
, 1, NULL
);
4328 do_spec_1 (multilib_dir
, 1, NULL
);
4329 /* Make this a separate argument. */
4330 do_spec_1 (" ", 0, NULL
);
4336 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4338 do_spec_1 ("-L", 0, NULL
);
4339 #ifdef SPACE_AFTER_L_OPTION
4340 do_spec_1 (" ", 0, NULL
);
4342 do_spec_1 (pl
->prefix
, 1, NULL
);
4343 /* Remove slash from machine_suffix. */
4344 if (strlen (machine_suffix
) >= bufsize
)
4345 bufsize
= strlen (machine_suffix
) * 2 + 1;
4346 buffer
= (char *) xrealloc (buffer
, bufsize
);
4347 strcpy (buffer
, machine_suffix
);
4348 idx
= strlen (buffer
);
4349 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4350 buffer
[idx
- 1] = 0;
4351 do_spec_1 (buffer
, 1, NULL
);
4352 /* Make this a separate argument. */
4353 do_spec_1 (" ", 0, NULL
);
4356 if (!pl
->require_machine_suffix
)
4358 if (is_directory (pl
->prefix
, "", 1))
4360 do_spec_1 ("-L", 0, NULL
);
4361 #ifdef SPACE_AFTER_L_OPTION
4362 do_spec_1 (" ", 0, NULL
);
4364 /* Remove slash from pl->prefix. */
4365 if (strlen (pl
->prefix
) >= bufsize
)
4366 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4367 buffer
= (char *) xrealloc (buffer
, bufsize
);
4368 strcpy (buffer
, pl
->prefix
);
4369 idx
= strlen (buffer
);
4370 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4371 buffer
[idx
- 1] = 0;
4372 do_spec_1 (buffer
, 1, NULL
);
4373 /* Make this a separate argument. */
4374 do_spec_1 (" ", 0, NULL
);
4383 /* %efoo means report an error with `foo' as error message
4384 and don't execute any more commands for this file. */
4388 while (*p
!= 0 && *p
!= '\n')
4390 buf
= (char *) alloca (p
- q
+ 1);
4391 strncpy (buf
, q
, p
- q
);
4398 /* %nfoo means report an notice with `foo' on stderr. */
4402 while (*p
!= 0 && *p
!= '\n')
4404 buf
= (char *) alloca (p
- q
+ 1);
4405 strncpy (buf
, q
, p
- q
);
4407 notice ("%s\n", buf
);
4417 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4418 and it is not a directory, and it is writable, use it.
4419 Otherwise, fall through and treat this like any other
4422 if ((!save_temps_flag
)
4423 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4424 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4426 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4427 strlen (HOST_BIT_BUCKET
));
4428 delete_this_arg
= 0;
4436 if (save_temps_flag
)
4438 obstack_grow (&obstack
, input_basename
, basename_length
);
4439 delete_this_arg
= 0;
4443 struct temp_name
*t
;
4445 const char *suffix
= p
;
4446 char *saved_suffix
= NULL
;
4448 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4450 suffix_length
= p
- suffix
;
4451 if (p
[0] == '%' && p
[1] == 'O')
4454 /* We don't support extra suffix characters after %O. */
4455 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4457 if (suffix_length
== 0)
4458 suffix
= TARGET_OBJECT_SUFFIX
;
4462 = (char *) xmalloc (suffix_length
4463 + strlen (TARGET_OBJECT_SUFFIX
));
4464 strncpy (saved_suffix
, suffix
, suffix_length
);
4465 strcpy (saved_suffix
+ suffix_length
,
4466 TARGET_OBJECT_SUFFIX
);
4468 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4471 /* See if we already have an association of %g/%u/%U and
4473 for (t
= temp_names
; t
; t
= t
->next
)
4474 if (t
->length
== suffix_length
4475 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4476 && t
->unique
== (c
!= 'g'))
4479 /* Make a new association if needed. %u and %j
4481 if (t
== 0 || c
== 'u' || c
== 'j')
4485 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4486 t
->next
= temp_names
;
4489 t
->length
= suffix_length
;
4492 t
->suffix
= saved_suffix
;
4493 saved_suffix
= NULL
;
4496 t
->suffix
= save_string (suffix
, suffix_length
);
4497 t
->unique
= (c
!= 'g');
4498 temp_filename
= make_temp_file (t
->suffix
);
4499 temp_filename_length
= strlen (temp_filename
);
4500 t
->filename
= temp_filename
;
4501 t
->filename_length
= temp_filename_length
;
4505 free (saved_suffix
);
4507 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4508 delete_this_arg
= 1;
4514 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4520 struct prefix_list
*pl
= include_prefixes
.plist
;
4522 if (gcc_exec_prefix
)
4524 do_spec_1 ("-iprefix", 1, NULL
);
4525 /* Make this a separate argument. */
4526 do_spec_1 (" ", 0, NULL
);
4527 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4528 do_spec_1 (" ", 0, NULL
);
4531 for (; pl
; pl
= pl
->next
)
4533 do_spec_1 ("-isystem", 1, NULL
);
4534 /* Make this a separate argument. */
4535 do_spec_1 (" ", 0, NULL
);
4536 do_spec_1 (pl
->prefix
, 1, NULL
);
4537 do_spec_1 (" ", 0, NULL
);
4544 int max
= n_infiles
;
4545 max
+= lang_specific_extra_outfiles
;
4547 for (i
= 0; i
< max
; i
++)
4549 store_arg (outfiles
[i
], 0, 0);
4554 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4559 this_is_library_file
= 1;
4563 this_is_output_file
= 1;
4568 int cur_index
= argbuf_index
;
4569 /* Handle the {...} following the %W. */
4572 p
= handle_braces (p
+ 1);
4575 /* If any args were output, mark the last one for deletion
4577 if (argbuf_index
!= cur_index
)
4578 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4582 /* %x{OPTION} records OPTION for %X to output. */
4588 /* Skip past the option value and make a copy. */
4593 string
= save_string (p1
+ 1, p
- p1
- 2);
4595 /* See if we already recorded this option. */
4596 for (i
= 0; i
< n_linker_options
; i
++)
4597 if (! strcmp (string
, linker_options
[i
]))
4603 /* This option is new; add it. */
4604 add_linker_option (string
, strlen (string
));
4608 /* Dump out the options accumulated previously using %x. */
4610 for (i
= 0; i
< n_linker_options
; i
++)
4612 do_spec_1 (linker_options
[i
], 1, NULL
);
4613 /* Make each accumulated option a separate argument. */
4614 do_spec_1 (" ", 0, NULL
);
4618 /* Dump out the options accumulated previously using -Wa,. */
4620 for (i
= 0; i
< n_assembler_options
; i
++)
4622 do_spec_1 (assembler_options
[i
], 1, NULL
);
4623 /* Make each accumulated option a separate argument. */
4624 do_spec_1 (" ", 0, NULL
);
4628 /* Dump out the options accumulated previously using -Wp,. */
4630 for (i
= 0; i
< n_preprocessor_options
; i
++)
4632 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4633 /* Make each accumulated option a separate argument. */
4634 do_spec_1 (" ", 0, NULL
);
4638 /* Here are digits and numbers that just process
4639 a certain constant string as a spec. */
4642 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4648 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4654 value
= do_spec_1 (asm_spec
, 0, NULL
);
4660 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4666 value
= do_spec_1 (signed_char_spec
, 0, NULL
);
4673 const char *const spec
4674 = (input_file_compiler
->cpp_spec
4675 ? input_file_compiler
->cpp_spec
4677 value
= do_spec_1 (spec
, 0, NULL
);
4684 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4690 value
= do_spec_1 (link_spec
, 0, NULL
);
4696 value
= do_spec_1 (lib_spec
, 0, NULL
);
4702 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4708 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4714 len
= strlen (multilib_dir
);
4715 obstack_blank (&obstack
, len
+ 1);
4716 p
= obstack_next_free (&obstack
) - (len
+ 1);
4719 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4720 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4726 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4730 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4734 if (! strncmp (y
, "-D", 2))
4735 /* Copy the whole option. */
4736 while (*y
&& *y
!= ' ' && *y
!= '\t')
4738 else if (*y
== ' ' || *y
== '\t')
4739 /* Copy whitespace to the result. */
4741 /* Don't copy other options. */
4748 value
= do_spec_1 (buf
, 0, NULL
);
4756 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4760 /* Copy all of CPP_PREDEFINES into BUF,
4761 but force them all into the reserved name space if they
4762 aren't already there. The reserved name space is all
4763 identifiers beginning with two underscores or with one
4764 underscore and a capital letter. We do the forcing by
4765 adding up to two underscores to the beginning and end
4766 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4771 if (! strncmp (y
, "-D", 2))
4780 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4782 /* Stick __ at front of macro name. */
4786 /* Arrange to stick __ at the end as well. */
4790 /* Copy the macro name. */
4791 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4804 /* Copy the value given, if any. */
4805 while (*y
&& *y
!= ' ' && *y
!= '\t')
4808 else if (*y
== ' ' || *y
== '\t')
4809 /* Copy whitespace to the result. */
4811 /* Don't copy -A options */
4817 /* Copy all of CPP_PREDEFINES into BUF,
4818 but put __ after every -D. */
4822 if (! strncmp (y
, "-D", 2))
4828 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4830 /* Stick -D__ at front of macro name. */
4837 /* Copy the macro name. */
4838 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4841 /* Copy the value given, if any. */
4842 while (*y
&& *y
!= ' ' && *y
!= '\t')
4847 /* Do not copy this macro - we have just done it before */
4848 while (*y
&& *y
!= ' ' && *y
!= '\t')
4852 else if (*y
== ' ' || *y
== '\t')
4853 /* Copy whitespace to the result. */
4855 /* Don't copy -A options. */
4861 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4865 if (! strncmp (y
, "-A", 2))
4866 /* Copy the whole option. */
4867 while (*y
&& *y
!= ' ' && *y
!= '\t')
4869 else if (*y
== ' ' || *y
== '\t')
4870 /* Copy whitespace to the result. */
4872 /* Don't copy other options. */
4879 value
= do_spec_1 (buf
, 0, NULL
);
4886 value
= do_spec_1 (startfile_spec
, 0, NULL
);
4891 /* Here we define characters other than letters and digits. */
4894 p
= handle_braces (p
);
4900 obstack_1grow (&obstack
, '%');
4907 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
4909 suffix_subst
= save_string (p
- 1, len
+ 1);
4915 if (soft_matched_part
)
4917 do_spec_1 (soft_matched_part
, 1, NULL
);
4918 do_spec_1 (" ", 0, NULL
);
4921 /* Catch the case where a spec string contains something like
4922 '%{foo:%*}'. ie there is no * in the pattern on the left
4923 hand side of the :. */
4924 error ("spec failure: '%%*' has not been initialised by pattern match");
4927 /* Process a string found as the value of a spec given by name.
4928 This feature allows individual machine descriptions
4929 to add and use their own specs.
4930 %[...] modifies -D options the way %P does;
4931 %(...) uses the spec unmodified. */
4933 error ("warning: use of obsolete %%[ operator in specs");
4936 const char *name
= p
;
4937 struct spec_list
*sl
;
4940 /* The string after the S/P is the name of a spec that is to be
4942 while (*p
&& *p
!= ')' && *p
!= ']')
4945 /* See if it's in the list. */
4946 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4947 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4949 name
= *(sl
->ptr_spec
);
4951 notice ("Processing spec %c%s%c, which is '%s'\n",
4952 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4961 value
= do_spec_1 (name
, 0, NULL
);
4967 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4969 const char *y
= name
;
4972 /* Copy all of NAME into BUF, but put __ after
4973 every -D and at the end of each arg. */
4976 if (! strncmp (y
, "-D", 2))
4987 && (*y
== ' ' || *y
== '\t' || *y
== '='
4988 || *y
== '}' || *y
== 0))
5001 value
= do_spec_1 (buf
, 0, NULL
);
5007 /* Discard the closing paren or bracket. */
5015 int c1
= *p
++; /* Select first or second version number. */
5016 const char *v
= compiler_version
;
5018 static const char zeroc
= '0';
5020 /* The format of the version string is
5021 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5023 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5024 while (! ISDIGIT (*v
))
5026 if (v
> compiler_version
&& v
[-1] != '-')
5029 /* If desired, advance to second version number. */
5032 /* Set V after the first period. */
5033 while (ISDIGIT (*v
))
5040 /* If desired, advance to third version number.
5041 But don't complain if it's not present */
5044 /* Set V after the second period. */
5045 while (ISDIGIT (*v
))
5047 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5053 /* Set Q at the next period or at the end. */
5055 while (ISDIGIT (*q
))
5057 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5061 /* Put that part into the command. */
5062 obstack_grow (&obstack
, v
, q
- v
);
5064 /* Default to "0" */
5065 obstack_grow (&obstack
, &zeroc
, 1);
5071 if (input_from_pipe
)
5072 do_spec_1 ("-", 0, NULL
);
5076 error ("spec failure: unrecognised spec option '%c'", c
);
5082 /* Backslash: treat next character as ordinary. */
5087 /* Ordinary character: put it into the current argument. */
5088 obstack_1grow (&obstack
, c
);
5092 /* End of string. */
5096 /* Return 0 if we call do_spec_1 and that returns -1. */
5102 const char *filter
, *body
= NULL
, *endbody
= NULL
;
5104 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5107 int include_blanks
= 1;
5108 int elide_switch
= 0;
5113 /* A '^' after the open-brace means to not give blanks before args. */
5120 /* A `|' after the open-brace means,
5121 if the test fails, output a single minus sign rather than nothing.
5122 This is used in %{|!pipe:...}. */
5129 /* A `<' after the open-brace means that the switch should be
5130 removed from the command-line. */
5136 negate
= suffix
= 0;
5139 /* A `!' after the open-brace negates the condition:
5140 succeed if the specified switch is not present. */
5144 /* A `.' after the open-brace means test against the current suffix. */
5153 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
5155 /* It doesn't make sense to mix elision with other flags. We
5156 could fatal() here, but the standard seems to be to abort. */
5162 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5165 if (*p
== '|' && (pipe_p
|| ordered
))
5170 if (*p
!= '}' && *p
!= '&')
5186 fatal ("mismatched braces in specs");
5192 body
= p
, endbody
= p
+ 1;
5197 int found
= (input_suffix
!= 0
5198 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5199 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5205 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5208 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5210 /* Substitute all matching switches as separate args. */
5213 for (i
= 0; i
< n_switches
; i
++)
5214 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5215 && check_live_switch (i
, p
- 1 - filter
))
5219 switches
[i
].live_cond
= SWITCH_IGNORE
;
5220 switches
[i
].validated
= 1;
5223 ordered
= 1, switches
[i
].ordering
= 1;
5228 /* Test for presence of the specified switch. */
5232 /* If name specified ends in *, as in {x*:...},
5233 check for %* and handle that case. */
5234 if (p
[-1] == '*' && !negate
)
5237 const char *r
= body
;
5239 /* First see whether we have %*. */
5243 if (*r
== '%' && r
[1] == '*')
5247 /* If we do, handle that case. */
5250 /* Substitute all matching switches as separate args.
5251 But do this by substituting for %*
5252 in the text that follows the colon. */
5254 unsigned hard_match_len
= p
- filter
- 1;
5255 char *string
= save_string (body
, endbody
- body
- 1);
5257 for (i
= 0; i
< n_switches
; i
++)
5258 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5259 && check_live_switch (i
, -1))
5261 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5262 /* Pass any arguments this switch has. */
5263 give_switch (i
, 1, 1);
5264 suffix_subst
= NULL
;
5267 /* We didn't match. Try again. */
5274 /* If name specified ends in *, as in {x*:...},
5275 check for presence of any switch name starting with x. */
5278 for (i
= 0; i
< n_switches
; i
++)
5280 unsigned hard_match_len
= p
- filter
- 1;
5282 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5283 && check_live_switch (i
, hard_match_len
))
5290 /* Otherwise, check for presence of exact name specified. */
5293 for (i
= 0; i
< n_switches
; i
++)
5295 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5296 && switches
[i
].part1
[p
- filter
] == 0
5297 && check_live_switch (i
, -1))
5305 /* If it is as desired (present for %{s...}, absent for %{!s...})
5306 then substitute either the switch or the specified
5307 conditional text. */
5308 if (present
!= negate
)
5312 switches
[i
].live_cond
= SWITCH_IGNORE
;
5313 switches
[i
].validated
= 1;
5315 else if (ordered
|| *p
== '&')
5316 ordered
= 1, switches
[i
].ordering
= 1;
5318 give_switch (i
, 0, include_blanks
);
5320 /* Even if many alternatives are matched, only output once. */
5325 /* Here if a %{|...} conditional fails: output a minus sign,
5326 which means "standard output" or "standard input". */
5327 do_spec_1 ("-", 0, NULL
);
5332 /* We didn't match; try again. */
5339 goto next_ampersand
;
5345 /* Doing this set of switches later preserves their command-line
5346 ordering. This is needed for e.g. -U, -D and -A. */
5347 for (i
= 0; i
< n_switches
; i
++)
5348 if (switches
[i
].ordering
== 1)
5350 switches
[i
].ordering
= 0;
5351 give_switch (i
, 0, include_blanks
);
5354 /* Process the spec just once, regardless of match count. */
5357 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5365 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5366 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5367 spec, or -1 if either exact match or %* is used.
5369 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5370 whose value does not begin with "no-" is obsoleted by the same value
5371 with the "no-", similarly for a switch with the "no-" prefix. */
5374 check_live_switch (switchnum
, prefix_length
)
5378 const char *name
= switches
[switchnum
].part1
;
5381 /* In the common case of {<at-most-one-letter>*}, a negating
5382 switch would always match, so ignore that case. We will just
5383 send the conflicting switches to the compiler phase. */
5384 if (prefix_length
>= 0 && prefix_length
<= 1)
5387 /* If we already processed this switch and determined if it was
5388 live or not, return our past determination. */
5389 if (switches
[switchnum
].live_cond
!= 0)
5390 return switches
[switchnum
].live_cond
> 0;
5392 /* Now search for duplicate in a manner that depends on the name. */
5396 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5397 if (switches
[i
].part1
[0] == 'O')
5399 switches
[switchnum
].validated
= 1;
5400 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5405 case 'W': case 'f': case 'm':
5406 if (! strncmp (name
+ 1, "no-", 3))
5408 /* We have Xno-YYY, search for XYYY. */
5409 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5410 if (switches
[i
].part1
[0] == name
[0]
5411 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5413 switches
[switchnum
].validated
= 1;
5414 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5420 /* We have XYYY, search for Xno-YYY. */
5421 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5422 if (switches
[i
].part1
[0] == name
[0]
5423 && switches
[i
].part1
[1] == 'n'
5424 && switches
[i
].part1
[2] == 'o'
5425 && switches
[i
].part1
[3] == '-'
5426 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5428 switches
[switchnum
].validated
= 1;
5429 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5436 /* Otherwise the switch is live. */
5437 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5441 /* Pass a switch to the current accumulating command
5442 in the same form that we received it.
5443 SWITCHNUM identifies the switch; it is an index into
5444 the vector of switches gcc received, which is `switches'.
5445 This cannot fail since it never finishes a command line.
5447 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5449 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5453 give_switch (switchnum
, omit_first_word
, include_blanks
)
5455 int omit_first_word
;
5458 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5461 if (!omit_first_word
)
5463 do_spec_1 ("-", 0, NULL
);
5464 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5467 if (switches
[switchnum
].args
!= 0)
5470 for (p
= switches
[switchnum
].args
; *p
; p
++)
5472 const char *arg
= *p
;
5475 do_spec_1 (" ", 0, NULL
);
5478 unsigned length
= strlen (arg
);
5481 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5482 if (arg
[length
] == '.')
5484 ((char *)arg
)[length
] = 0;
5488 do_spec_1 (arg
, 1, NULL
);
5490 ((char *)arg
)[length
] = '.';
5491 do_spec_1 (suffix_subst
, 1, NULL
);
5494 do_spec_1 (arg
, 1, NULL
);
5498 do_spec_1 (" ", 0, NULL
);
5499 switches
[switchnum
].validated
= 1;
5502 /* Search for a file named NAME trying various prefixes including the
5503 user's -B prefix and some standard ones.
5504 Return the absolute file name found. If nothing is found, return NAME. */
5512 /* Try multilib_dir if it is defined. */
5513 if (multilib_dir
!= NULL
)
5515 const char *const try = ACONCAT ((multilib_dir
, dir_separator_str
, name
, NULL
));
5517 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5519 /* If we don't find it in the multi library dir, then fall
5520 through and look for it in the normal places. */
5521 if (newname
!= NULL
)
5525 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5526 return newname
? newname
: name
;
5529 /* Determine whether a directory exists. If LINKER, return 0 for
5530 certain fixed names not needed by the linker. If not LINKER, it is
5531 only important to return 0 if the host machine has a small ARG_MAX
5535 is_directory (path1
, path2
, linker
)
5540 int len1
= strlen (path1
);
5541 int len2
= strlen (path2
);
5542 char *path
= (char *) alloca (3 + len1
+ len2
);
5546 #ifndef SMALL_ARG_MAX
5551 /* Construct the path from the two parts. Ensure the string ends with "/.".
5552 The resulting path will be a directory even if the given path is a
5554 memcpy (path
, path1
, len1
);
5555 memcpy (path
+ len1
, path2
, len2
);
5556 cp
= path
+ len1
+ len2
;
5557 if (!IS_DIR_SEPARATOR (cp
[-1]))
5558 *cp
++ = DIR_SEPARATOR
;
5562 /* Exclude directories that the linker is known to search. */
5565 && strcmp (path
, concat (dir_separator_str
, "lib",
5566 dir_separator_str
, ".", NULL
)) == 0)
5568 && strcmp (path
, concat (dir_separator_str
, "usr",
5569 dir_separator_str
, "lib",
5570 dir_separator_str
, ".", NULL
)) == 0)))
5573 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5576 /* Set up the various global variables to indicate that we're processing
5577 the input file named FILENAME. */
5580 set_input (filename
)
5581 const char *filename
;
5585 input_filename
= filename
;
5586 input_filename_length
= strlen (input_filename
);
5588 input_basename
= input_filename
;
5589 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5590 /* Skip drive name so 'x:foo' is handled properly. */
5591 if (input_basename
[1] == ':')
5592 input_basename
+= 2;
5594 for (p
= input_basename
; *p
; p
++)
5595 if (IS_DIR_SEPARATOR (*p
))
5596 input_basename
= p
+ 1;
5598 /* Find a suffix starting with the last period,
5599 and set basename_length to exclude that suffix. */
5600 basename_length
= strlen (input_basename
);
5601 suffixed_basename_length
= basename_length
;
5602 p
= input_basename
+ basename_length
;
5603 while (p
!= input_basename
&& *p
!= '.')
5605 if (*p
== '.' && p
!= input_basename
)
5607 basename_length
= p
- input_basename
;
5608 input_suffix
= p
+ 1;
5614 /* On fatal signals, delete all the temporary files. */
5617 fatal_error (signum
)
5620 signal (signum
, SIG_DFL
);
5621 delete_failure_queue ();
5622 delete_temp_files ();
5623 /* Get the same signal again, this time not handled,
5624 so its normal effect occurs. */
5625 kill (getpid (), signum
);
5628 extern int main
PARAMS ((int, const char *const *));
5633 const char *const *argv
;
5637 int linker_was_run
= 0;
5638 char *explicit_link_files
;
5641 struct user_specs
*uptr
;
5643 p
= argv
[0] + strlen (argv
[0]);
5644 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5648 xmalloc_set_program_name (programname
);
5650 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5651 /* Perform host dependent initialization when needed. */
5652 GCC_DRIVER_HOST_INITIALIZATION
;
5655 gcc_init_libintl ();
5657 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5658 signal (SIGINT
, fatal_error
);
5660 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5661 signal (SIGHUP
, fatal_error
);
5663 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5664 signal (SIGTERM
, fatal_error
);
5666 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5667 signal (SIGPIPE
, fatal_error
);
5670 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5671 receive the signal. A different setting is inheritable */
5672 signal (SIGCHLD
, SIG_DFL
);
5676 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5678 obstack_init (&obstack
);
5680 /* Build multilib_select, et. al from the separate lines that make up each
5681 multilib selection. */
5683 const char *const *q
= multilib_raw
;
5686 obstack_init (&multilib_obstack
);
5687 while ((p
= *q
++) != (char *) 0)
5688 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5690 obstack_1grow (&multilib_obstack
, 0);
5691 multilib_select
= obstack_finish (&multilib_obstack
);
5693 q
= multilib_matches_raw
;
5694 while ((p
= *q
++) != (char *) 0)
5695 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5697 obstack_1grow (&multilib_obstack
, 0);
5698 multilib_matches
= obstack_finish (&multilib_obstack
);
5700 q
= multilib_exclusions_raw
;
5701 while ((p
= *q
++) != (char *) 0)
5702 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5704 obstack_1grow (&multilib_obstack
, 0);
5705 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5708 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5711 obstack_1grow (&multilib_obstack
, ' ');
5712 obstack_grow (&multilib_obstack
,
5713 multilib_defaults_raw
[i
],
5714 strlen (multilib_defaults_raw
[i
]));
5718 obstack_1grow (&multilib_obstack
, 0);
5719 multilib_defaults
= obstack_finish (&multilib_obstack
);
5722 /* Set up to remember the pathname of gcc and any options
5723 needed for collect. We use argv[0] instead of programname because
5724 we need the complete pathname. */
5725 obstack_init (&collect_obstack
);
5726 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5727 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5728 putenv (obstack_finish (&collect_obstack
));
5730 #ifdef INIT_ENVIRONMENT
5731 /* Set up any other necessary machine specific environment variables. */
5732 putenv (INIT_ENVIRONMENT
);
5735 /* Make a table of what switches there are (switches, n_switches).
5736 Make a table of specified input files (infiles, n_infiles).
5737 Decode switches that are handled locally. */
5739 process_command (argc
, argv
);
5741 /* Initialize the vector of specs to just the default.
5742 This means one element containing 0s, as a terminator. */
5744 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5745 memcpy ((char *) compilers
, (char *) default_compilers
,
5746 sizeof default_compilers
);
5747 n_compilers
= n_default_compilers
;
5749 /* Read specs from a file if there is one. */
5751 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5752 spec_version
, dir_separator_str
, NULL
);
5753 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5755 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5756 /* Read the specs file unless it is a default one. */
5757 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5758 read_specs (specs_file
, TRUE
);
5762 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5763 for any override of as, ld and libraries. */
5764 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5765 + strlen (just_machine_suffix
)
5766 + sizeof ("specs"));
5768 strcpy (specs_file
, standard_exec_prefix
);
5769 strcat (specs_file
, just_machine_suffix
);
5770 strcat (specs_file
, "specs");
5771 if (access (specs_file
, R_OK
) == 0)
5772 read_specs (specs_file
, TRUE
);
5774 /* If not cross-compiling, look for startfiles in the standard places. */
5775 if (*cross_compile
== '0')
5777 if (*md_exec_prefix
)
5779 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5780 PREFIX_PRIORITY_LAST
, 0, NULL
);
5781 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5782 PREFIX_PRIORITY_LAST
, 0, NULL
);
5785 if (*md_startfile_prefix
)
5786 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5787 PREFIX_PRIORITY_LAST
, 0, NULL
);
5789 if (*md_startfile_prefix_1
)
5790 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5791 PREFIX_PRIORITY_LAST
, 0, NULL
);
5793 /* If standard_startfile_prefix is relative, base it on
5794 standard_exec_prefix. This lets us move the installed tree
5795 as a unit. If GCC_EXEC_PREFIX is defined, base
5796 standard_startfile_prefix on that as well. */
5797 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5798 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5799 PREFIX_PRIORITY_LAST
, 0, NULL
);
5802 if (gcc_exec_prefix
)
5803 add_prefix (&startfile_prefixes
,
5804 concat (gcc_exec_prefix
, machine_suffix
,
5805 standard_startfile_prefix
, NULL
),
5806 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5807 add_prefix (&startfile_prefixes
,
5808 concat (standard_exec_prefix
,
5810 standard_startfile_prefix
, NULL
),
5811 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5814 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5815 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5816 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5817 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5818 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5819 add_prefix (&startfile_prefixes
, "./", NULL
,
5820 PREFIX_PRIORITY_LAST
, 1, NULL
);
5825 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5827 add_prefix (&startfile_prefixes
,
5828 concat (gcc_exec_prefix
, machine_suffix
,
5829 standard_startfile_prefix
, NULL
),
5830 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5833 /* Process any user specified specs in the order given on the command
5835 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5837 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5838 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5841 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5842 if (gcc_exec_prefix
)
5843 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
5844 spec_version
, dir_separator_str
, NULL
);
5846 /* Now we have the specs.
5847 Set the `valid' bits for switches that match anything in any spec. */
5849 validate_all_switches ();
5851 /* Now that we have the switches and the specs, set
5852 the subdirectory based on the options. */
5853 set_multilib_dir ();
5855 /* Warn about any switches that no pass was interested in. */
5857 for (i
= 0; (int) i
< n_switches
; i
++)
5858 if (! switches
[i
].validated
)
5859 error ("unrecognized option `-%s'", switches
[i
].part1
);
5861 /* Obey some of the options. */
5863 if (print_search_dirs
)
5865 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5866 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5867 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
5871 if (print_file_name
)
5873 printf ("%s\n", find_file (print_file_name
));
5877 if (print_prog_name
)
5879 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5880 printf ("%s\n", (newname
? newname
: print_prog_name
));
5884 if (print_multi_lib
)
5886 print_multilib_info ();
5890 if (print_multi_directory
)
5892 if (multilib_dir
== NULL
)
5895 printf ("%s\n", multilib_dir
);
5899 if (target_help_flag
)
5901 /* Print if any target specific options.*/
5903 /* We do not exit here. Instead we have created a fake input file
5904 called 'target-dummy' which needs to be compiled, and we pass this
5905 on to the various sub-processes, along with the --target-help
5909 if (print_help_list
)
5915 printf (_("\nFor bug reporting instructions, please see:\n"));
5916 printf ("%s.\n", GCCBUGURL
);
5921 /* We do not exit here. Instead we have created a fake input file
5922 called 'help-dummy' which needs to be compiled, and we pass this
5923 on the various sub-processes, along with the --help switch. */
5931 notice ("Configured with: %s\n", configuration_arguments
);
5933 #ifdef THREAD_MODEL_SPEC
5934 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
5935 but there's no point in doing all this processing just to get
5936 thread_model back. */
5937 obstack_init (&obstack
);
5938 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
5939 obstack_1grow (&obstack
, '\0');
5940 thrmod
= obstack_finish (&obstack
);
5942 thrmod
= thread_model
;
5945 notice ("Thread model: %s\n", thrmod
);
5947 /* compiler_version is truncated at the first space when initialized
5948 from version string, so truncate version_string at the first space
5949 before comparing. */
5950 for (n
= 0; version_string
[n
]; n
++)
5951 if (version_string
[n
] == ' ')
5954 if (! strncmp (version_string
, compiler_version
, n
)
5955 && compiler_version
[n
] == 0)
5956 notice ("gcc version %s\n", version_string
);
5958 notice ("gcc driver version %s executing gcc version %s\n",
5959 version_string
, compiler_version
);
5965 if (n_infiles
== added_libraries
)
5966 fatal ("no input files");
5968 /* Make a place to record the compiler output file names
5969 that correspond to the input files. */
5972 i
+= lang_specific_extra_outfiles
;
5973 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5975 /* Record which files were specified explicitly as link input. */
5977 explicit_link_files
= xcalloc (1, n_infiles
);
5979 for (i
= 0; (int) i
< n_infiles
; i
++)
5981 int this_file_error
= 0;
5983 /* Tell do_spec what to substitute for %i. */
5985 input_file_number
= i
;
5986 set_input (infiles
[i
].name
);
5988 /* Use the same thing in %o, unless cp->spec says otherwise. */
5990 outfiles
[i
] = input_filename
;
5992 /* Figure out which compiler from the file's suffix. */
5995 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
5996 infiles
[i
].language
);
5998 if (input_file_compiler
)
6000 /* Ok, we found an applicable compiler. Run its spec. */
6002 if (input_file_compiler
->spec
[0] == '#')
6004 error ("%s: %s compiler not installed on this system",
6005 input_filename
, &input_file_compiler
->spec
[1]);
6006 this_file_error
= 1;
6010 value
= do_spec (input_file_compiler
->spec
);
6012 this_file_error
= 1;
6016 /* If this file's name does not contain a recognized suffix,
6017 record it as explicit linker input. */
6020 explicit_link_files
[i
] = 1;
6022 /* Clear the delete-on-failure queue, deleting the files in it
6023 if this compilation failed. */
6025 if (this_file_error
)
6027 delete_failure_queue ();
6030 /* If this compilation succeeded, don't delete those files later. */
6031 clear_failure_queue ();
6034 /* Reset the output file name to the first input file name, for use
6035 with %b in LINK_SPEC on a target that prefers not to emit a.out
6038 set_input (infiles
[0].name
);
6040 if (error_count
== 0)
6042 /* Make sure INPUT_FILE_NUMBER points to first available open
6044 input_file_number
= n_infiles
;
6045 if (lang_specific_pre_link ())
6049 /* Run ld to link all the compiler output files. */
6051 if (error_count
== 0)
6053 int tmp
= execution_count
;
6055 /* We'll use ld if we can't find collect2. */
6056 if (! strcmp (linker_name_spec
, "collect2"))
6058 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
6060 linker_name_spec
= "ld";
6062 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6064 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6065 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6067 value
= do_spec (link_command_spec
);
6070 linker_was_run
= (tmp
!= execution_count
);
6073 /* If options said don't run linker,
6074 complain about input files to be given to the linker. */
6076 if (! linker_was_run
&& error_count
== 0)
6077 for (i
= 0; (int) i
< n_infiles
; i
++)
6078 if (explicit_link_files
[i
])
6079 error ("%s: linker input file unused because linking not done",
6082 /* Delete some or all of the temporary files we made. */
6085 delete_failure_queue ();
6086 delete_temp_files ();
6088 if (print_help_list
)
6090 printf (("\nFor bug reporting instructions, please see:\n"));
6091 printf ("%s\n", GCCBUGURL
);
6094 return (signal_count
!= 0 ? 2
6095 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6099 /* Find the proper compilation spec for the file name NAME,
6100 whose length is LENGTH. LANGUAGE is the specified language,
6101 or 0 if this file is to be passed to the linker. */
6103 static struct compiler
*
6104 lookup_compiler (name
, length
, language
)
6107 const char *language
;
6109 struct compiler
*cp
;
6111 /* If this was specified by the user to be a linker input, indicate that. */
6112 if (language
!= 0 && language
[0] == '*')
6115 /* Otherwise, look for the language, if one is spec'd. */
6118 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6119 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6122 error ("language %s not recognized", language
);
6126 /* Look for a suffix. */
6127 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6129 if (/* The suffix `-' matches only the file name `-'. */
6130 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6131 || (strlen (cp
->suffix
) < length
6132 /* See if the suffix matches the end of NAME. */
6133 && !strcmp (cp
->suffix
,
6134 name
+ length
- strlen (cp
->suffix
))
6139 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6140 /* look again, but case-insensitively this time. */
6142 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6144 if (/* The suffix `-' matches only the file name `-'. */
6145 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6146 || (strlen (cp
->suffix
) < length
6147 /* See if the suffix matches the end of NAME. */
6148 && ((!strcmp (cp
->suffix
,
6149 name
+ length
- strlen (cp
->suffix
))
6150 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6151 && !strcasecmp (cp
->suffix
,
6152 name
+ length
- strlen (cp
->suffix
)))
6158 if (cp
>= compilers
)
6160 if (cp
->spec
[0] != '@')
6161 /* A non-alias entry: return it. */
6164 /* An alias entry maps a suffix to a language.
6165 Search for the language; pass 0 for NAME and LENGTH
6166 to avoid infinite recursion if language not found. */
6167 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6173 save_string (s
, len
)
6177 char *result
= xmalloc (len
+ 1);
6179 memcpy (result
, s
, len
);
6185 pfatal_with_name (name
)
6188 perror_with_name (name
);
6189 delete_temp_files ();
6194 perror_with_name (name
)
6197 error ("%s: %s", name
, xstrerror (errno
));
6201 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6202 const char *errmsg_fmt
;
6203 const char *errmsg_arg
;
6207 int save_errno
= errno
;
6209 /* Space for trailing '\0' is in %s. */
6210 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6211 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6217 pfatal_with_name (errmsg_fmt
);
6220 /* Output an error message and exit */
6225 fatal ("internal gcc abort.");
6228 /* Output an error message and exit */
6231 fatal
VPARAMS ((const char *msgid
, ...))
6233 VA_OPEN (ap
, msgid
);
6234 VA_FIXEDARG (ap
, const char *, msgid
);
6236 fprintf (stderr
, "%s: ", programname
);
6237 vfprintf (stderr
, _(msgid
), ap
);
6239 fprintf (stderr
, "\n");
6240 delete_temp_files ();
6245 error
VPARAMS ((const char *msgid
, ...))
6247 VA_OPEN (ap
, msgid
);
6248 VA_FIXEDARG (ap
, const char *, msgid
);
6250 fprintf (stderr
, "%s: ", programname
);
6251 vfprintf (stderr
, _(msgid
), ap
);
6254 fprintf (stderr
, "\n");
6258 notice
VPARAMS ((const char *msgid
, ...))
6260 VA_OPEN (ap
, msgid
);
6261 VA_FIXEDARG (ap
, const char *, msgid
);
6263 vfprintf (stderr
, _(msgid
), ap
);
6268 validate_all_switches ()
6270 struct compiler
*comp
;
6273 struct spec_list
*spec
;
6275 for (comp
= compilers
; comp
->spec
; comp
++)
6279 if (c
== '%' && *p
== '{')
6280 /* We have a switch spec. */
6281 validate_switches (p
+ 1);
6284 /* Look through the linked list of specs read from the specs file. */
6285 for (spec
= specs
; spec
; spec
= spec
->next
)
6287 p
= *(spec
->ptr_spec
);
6289 if (c
== '%' && *p
== '{')
6290 /* We have a switch spec. */
6291 validate_switches (p
+ 1);
6294 p
= link_command_spec
;
6296 if (c
== '%' && *p
== '{')
6297 /* We have a switch spec. */
6298 validate_switches (p
+ 1);
6301 /* Look at the switch-name that comes after START
6302 and mark as valid all supplied switches that match it. */
6305 validate_switches (start
)
6308 const char *p
= start
;
6325 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6330 else if (p
[-1] == '*')
6332 /* Mark all matching switches as valid. */
6333 for (i
= 0; i
< n_switches
; i
++)
6334 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6335 switches
[i
].validated
= 1;
6339 /* Mark an exact matching switch as valid. */
6340 for (i
= 0; i
< n_switches
; i
++)
6342 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6343 && switches
[i
].part1
[p
- filter
] == 0)
6344 switches
[i
].validated
= 1;
6348 if (*p
++ == '|' || p
[-1] == '&')
6352 /* Check whether a particular argument was used. The first time we
6353 canonicalize the switches to keep only the ones we care about. */
6363 const char *replace
;
6368 static struct mswitchstr
*mswitches
;
6369 static int n_mswitches
;
6374 struct mswitchstr
*matches
;
6378 /* Break multilib_matches into the component strings of string
6379 and replacement string. */
6380 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6385 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6387 q
= multilib_matches
;
6397 matches
[i
].len
= q
- matches
[i
].str
;
6399 matches
[i
].replace
= ++q
;
6400 while (*q
!= ';' && *q
!= '\0')
6406 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6412 /* Now build a list of the replacement string for switches that we care
6413 about. Make sure we allocate at least one entry. This prevents
6414 xmalloc from calling fatal, and prevents us from re-executing this
6417 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6418 * (n_switches
? n_switches
: 1));
6419 for (i
= 0; i
< n_switches
; i
++)
6421 int xlen
= strlen (switches
[i
].part1
);
6422 for (j
= 0; j
< cnt
; j
++)
6423 if (xlen
== matches
[j
].len
6424 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6426 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6427 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6428 mswitches
[n_mswitches
].replace
= (char *) 0;
6429 mswitches
[n_mswitches
].rep_len
= 0;
6436 for (i
= 0; i
< n_mswitches
; i
++)
6437 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6444 default_arg (p
, len
)
6448 const char *start
, *end
;
6450 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6452 while (*start
== ' ' || *start
== '\t')
6458 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6461 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6471 /* Work out the subdirectory to use based on the options. The format of
6472 multilib_select is a list of elements. Each element is a subdirectory
6473 name followed by a list of options followed by a semicolon. The format
6474 of multilib_exclusions is the same, but without the preceding
6475 directory. First gcc will check the exclusions, if none of the options
6476 beginning with an exclamation point are present, and all of the other
6477 options are present, then we will ignore this completely. Passing
6478 that, gcc will consider each multilib_select in turn using the same
6479 rules for matching the options. If a match is found, that subdirectory
6486 unsigned int this_path_len
;
6487 const char *this_path
, *this_arg
;
6491 p
= multilib_exclusions
;
6494 /* Ignore newlines. */
6501 /* Check the arguments. */
6515 while (*p
!= ' ' && *p
!= ';')
6522 if (*this_arg
!= '!')
6530 ok
= used_arg (this_arg
, p
- this_arg
);
6544 p
= multilib_select
;
6547 /* Ignore newlines. */
6554 /* Get the initial path. */
6562 this_path_len
= p
- this_path
;
6564 /* Check the arguments. */
6579 while (*p
!= ' ' && *p
!= ';')
6586 if (*this_arg
!= '!')
6594 /* If this is a default argument, we can just ignore it.
6595 This is true even if this_arg begins with '!'. Beginning
6596 with '!' does not mean that this argument is necessarily
6597 inappropriate for this library: it merely means that
6598 there is a more specific library which uses this
6599 argument. If this argument is a default, we need not
6600 consider that more specific library. */
6601 if (! default_arg (this_arg
, p
- this_arg
))
6603 ok
= used_arg (this_arg
, p
- this_arg
);
6614 if (this_path_len
!= 1
6615 || this_path
[0] != '.')
6617 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6618 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6619 new_multilib_dir
[this_path_len
] = '\0';
6620 multilib_dir
= new_multilib_dir
;
6629 /* Print out the multiple library subdirectory selection
6630 information. This prints out a series of lines. Each line looks
6631 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6632 required. Only the desired options are printed out, the negative
6633 matches. The options are print without a leading dash. There are
6634 no spaces to make it easy to use the information in the shell.
6635 Each subdirectory is printed only once. This assumes the ordering
6636 generated by the genmultilib script. Also, we leave out ones that match
6640 print_multilib_info ()
6642 const char *p
= multilib_select
;
6643 const char *last_path
= 0, *this_path
;
6645 unsigned int last_path_len
= 0;
6650 /* Ignore newlines. */
6657 /* Get the initial path. */
6666 /* Check for matches with the multilib_exclusions. We don't bother
6667 with the '!' in either list. If any of the exclusion rules match
6668 all of its options with the select rule, we skip it. */
6670 const char *e
= multilib_exclusions
;
6671 const char *this_arg
;
6676 /* Ignore newlines. */
6683 /* Check the arguments. */
6700 while (*e
!= ' ' && *e
!= ';')
6711 int len
= e
- this_arg
;
6718 while (*q
!= ' ' && *q
!= ';')
6725 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6726 default_arg (this_arg
, e
- this_arg
))
6756 /* If this is a duplicate, skip it. */
6757 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6758 && ! strncmp (last_path
, this_path
, last_path_len
));
6760 last_path
= this_path
;
6761 last_path_len
= p
- this_path
;
6764 /* If this directory requires any default arguments, we can skip
6765 it. We will already have printed a directory identical to
6766 this one which does not require that default argument. */
6784 while (*q
!= ' ' && *q
!= ';')
6792 && default_arg (arg
, q
- arg
))
6807 for (p1
= last_path
; p1
< p
; p1
++)
6826 use_arg
= *p
!= '!';
6831 while (*p
!= ' ' && *p
!= ';')
6846 /* If there are extra options, print them now. */
6847 if (multilib_extra
&& *multilib_extra
)
6849 int print_at
= TRUE
;
6852 for (q
= multilib_extra
; *q
!= '\0'; q
++)