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 set by cppspec.c to 1. */
149 /* Flag saying to pass the greatest exit code returned by a sub-process
150 to the calling program. */
151 static int pass_exit_codes;
153 /* Definition of string containing the arguments given to configure. */
154 #include "configargs.h"
156 /* Flag saying to print the directories gcc will search through looking for
157 programs, libraries, etc. */
159 static int print_search_dirs;
161 /* Flag saying to print the full filename of this file
162 as found through our usual search mechanism. */
164 static const char *print_file_name = NULL;
166 /* As print_file_name, but search for executable file. */
168 static const char *print_prog_name = NULL;
170 /* Flag saying to print the relative path we'd use to
171 find libgcc.a given the current compiler flags. */
173 static int print_multi_directory;
175 /* Flag saying to print the list of subdirectories and
176 compiler flags used to select them in a standard form. */
178 static int print_multi_lib;
180 /* Flag saying to print the command line options understood by gcc and its
183 static int print_help_list;
185 /* Flag indicating whether we should print the command and arguments */
187 static int verbose_flag;
189 /* Flag indicating to print target specific command line options. */
191 static int target_help_flag;
193 /* Flag indicating whether we should report subprocess execution times
194 (if this is supported by the system - see pexecute.c). */
196 static int report_times;
198 /* Nonzero means write "temp" files in source directory
199 and use the source file's name in them, and don't delete them. */
201 static int save_temps_flag;
203 /* The compiler version. */
205 static const char *compiler_version;
207 /* The target version specified with -V */
209 static const char *spec_version = DEFAULT_TARGET_VERSION;
211 /* The target machine specified with -b. */
213 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
215 /* Nonzero if cross-compiling.
216 When -b is used, the value comes from the `specs' file. */
219 static const char *cross_compile = "1";
221 static const char *cross_compile = "0";
224 #ifdef MODIFY_TARGET_NAME
226 /* Information on how to alter the target name based on a command-line
227 switch. The only case we support now is simply appending or deleting a
228 string to or from the end of the first part of the configuration name. */
230 const struct modify_target
232 const char *const sw;
233 const enum add_del {ADD, DELETE} add_del;
234 const char *const str;
236 modify_target[] = MODIFY_TARGET_NAME;
239 /* The number of errors that have occurred; the link phase will not be
240 run if this is non-zero. */
241 static int error_count = 0;
243 /* Greatest exit code of sub-processes that has been encountered up to
245 static int greatest_status = 1;
247 /* This is the obstack which we use to allocate many strings. */
249 static struct obstack obstack;
251 /* This is the obstack to build an environment variable to pass to
252 collect2 that describes all of the relevant switches of what to
253 pass the compiler in building the list of pointers to constructors
256 static struct obstack collect_obstack;
258 /* These structs are used to collect resource usage information for
260 #ifdef HAVE_GETRUSAGE
261 static struct rusage rus, prus;
264 /* Forward declaration for prototypes. */
267 static void init_spec PARAMS ((void));
269 static char **split_directories PARAMS ((const char *, int *));
270 static void free_split_directories PARAMS ((char **));
271 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
273 static void store_arg PARAMS ((const char *, int, int));
274 static char *load_specs PARAMS ((const char *));
275 static void read_specs PARAMS ((const char *, int));
276 static void set_spec PARAMS ((const char *, const char *));
277 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
278 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
279 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
280 static int access_check PARAMS ((const char *, int));
281 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
282 static void add_prefix PARAMS ((struct path_prefix *, const char *,
283 const char *, int, int, int *));
284 static void translate_options PARAMS ((int *, const char *const **));
285 static char *skip_whitespace PARAMS ((char *));
286 static void delete_if_ordinary PARAMS ((const char *));
287 static void delete_temp_files PARAMS ((void));
288 static void delete_failure_queue PARAMS ((void));
289 static void clear_failure_queue PARAMS ((void));
290 static int check_live_switch PARAMS ((int, int));
291 static const char *handle_braces PARAMS ((const char *));
292 static char *save_string PARAMS ((const char *, int));
293 static void set_collect_gcc_options PARAMS ((void));
294 static int do_spec_1 PARAMS ((const char *, int, const char *));
295 static const char *find_file PARAMS ((const char *));
296 static int is_directory PARAMS ((const char *, const char *, int));
297 static void validate_switches PARAMS ((const char *));
298 static void validate_all_switches PARAMS ((void));
299 static void give_switch PARAMS ((int, int, int));
300 static int used_arg PARAMS ((const char *, int));
301 static int default_arg PARAMS ((const char *, int));
302 static void set_multilib_dir PARAMS ((void));
303 static void print_multilib_info PARAMS ((void));
304 static void perror_with_name PARAMS ((const char *));
305 static void pfatal_pexecute PARAMS ((const char *, const char *))
307 static void notice PARAMS ((const char *, ...))
309 static void display_help PARAMS ((void));
310 static void add_preprocessor_option PARAMS ((const char *, int));
311 static void add_assembler_option PARAMS ((const char *, int));
312 static void add_linker_option PARAMS ((const char *, int));
313 static void process_command PARAMS ((int, const char *const *));
314 static int execute PARAMS ((void));
315 static void clear_args PARAMS ((void));
316 static void fatal_error PARAMS ((int));
317 #ifdef ENABLE_SHARED_LIBGCC
318 static void init_gcc_specs PARAMS ((struct obstack *,
322 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
323 static const char *convert_filename PARAMS ((const char *, int, int));
326 /* The Specs Language
328 Specs are strings containing lines, each of which (if not blank)
329 is made up of a program name, and arguments separated by spaces.
330 The program name must be exact and start from root, since no path
331 is searched and it is unreliable to depend on the current working directory.
332 Redirection of input or output is not supported; the subprograms must
333 accept filenames saying what files to read and write.
335 In addition, the specs can contain %-sequences to substitute variable text
336 or for conditional text. Here is a table of all defined %-sequences.
337 Note that spaces are not generated automatically around the results of
338 expanding these sequences; therefore, you can concatenate them together
339 or with constant text in a single argument.
341 %% substitute one % into the program name or argument.
342 %i substitute the name of the input file being processed.
343 %b substitute the basename of the input file being processed.
344 This is the substring up to (and not including) the last period
345 and not including the directory.
346 %B same as %b, but include the file suffix (text after the last period).
348 substitute a file name that has suffix SUFFIX and is chosen
349 once per compilation, and mark the argument a la %d. To reduce
350 exposure to denial-of-service attacks, the file name is now
351 chosen in a way that is hard to predict even when previously
352 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
353 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
354 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
355 had been pre-processed. Previously, %g was simply substituted
356 with a file name chosen once per compilation, without regard
357 to any appended suffix (which was therefore treated just like
358 ordinary text), making such attacks more likely to succeed.
360 like %g, but generates a new temporary file name even if %uSUFFIX
363 substitutes the last file name generated with %uSUFFIX, generating a
364 new one if there is no such last file name. In the absence of any
365 %uSUFFIX, this is just like %gSUFFIX, except they don't share
366 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
367 would involve the generation of two distinct file names, one
368 for each `%g.s' and another for each `%U.s'. Previously, %U was
369 simply substituted with a file name chosen for the previous %u,
370 without regard to any appended suffix.
372 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
373 writable, and if save-temps is off; otherwise, substitute the name
374 of a temporary file, just like %u. This temporary file is not
375 meant for communication between processes, but rather as a junk
378 substitutes .SUFFIX for the suffixes of a matched switch's args when
379 it is subsequently output with %*. SUFFIX is terminated by the next
381 %d marks the argument containing or following the %d as a
382 temporary file name, so that that file will be deleted if CC exits
383 successfully. Unlike %g, this contributes no text to the argument.
384 %w marks the argument containing or following the %w as the
385 "output file" of this compilation. This puts the argument
386 into the sequence of arguments that %o will substitute later.
388 like %{...} but mark last argument supplied within
389 as a file to be deleted on failure.
390 %o substitutes the names of all the output files, with spaces
391 automatically placed around them. You should write spaces
392 around the %o as well or the results are undefined.
393 %o is for use in the specs for running the linker.
394 Input files whose names have no recognized suffix are not compiled
395 at all, but they are included among the output files, so they will
397 %O substitutes the suffix for object files. Note that this is
398 handled specially when it immediately follows %g, %u, or %U
399 (with or without a suffix argument) because of the need for
400 those to form complete file names. The handling is such that
401 %O is treated exactly as if it had already been substituted,
402 except that %g, %u, and %U do not currently support additional
403 SUFFIX characters following %O as they would following, for
405 %p substitutes the standard macro predefinitions for the
406 current target machine. Use this when running cpp.
407 %P like %p, but puts `__' before and after the name of each macro.
408 (Except macros that already have __.)
410 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
411 %s current argument is the name of a library or startup file of some sort.
412 Search for that file in a standard list of directories
413 and substitute the full name found.
414 %eSTR Print STR as an error message. STR is terminated by a newline.
415 Use this when inconsistent options are detected.
416 %nSTR Print STR as an notice. STR is terminated by a newline.
417 %x{OPTION} Accumulate an option for %X.
418 %X Output the accumulated linker options specified by compilations.
419 %Y Output the accumulated assembler options specified by compilations.
420 %Z Output the accumulated preprocessor options specified by compilations.
421 %v1 Substitute the major version number of GCC.
422 (For version 2.5.3, this is 2.)
423 %v2 Substitute the minor version number of GCC.
424 (For version 2.5.3, this is 5.)
425 %v3 Substitute the patch level number of GCC.
426 (For version 2.5.3, this is 3.)
427 %a process ASM_SPEC as a spec.
428 This allows config.h to specify part of the spec for running as.
429 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
430 used here. This can be used to run a post-processor after the
431 assembler has done its job.
432 %D Dump out a -L option for each directory in startfile_prefixes.
433 If multilib_dir is set, extra entries are generated with it affixed.
434 %l process LINK_SPEC as a spec.
435 %L process LIB_SPEC as a spec.
436 %G process LIBGCC_SPEC as a spec.
437 %M output multilib_dir with directory separators replaced with "_";
438 if multilib_dir is not set or is ".", output "".
439 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
440 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
441 %c process SIGNED_CHAR_SPEC as a spec.
442 %C process CPP_SPEC as a spec.
443 %1 process CC1_SPEC as a spec.
444 %2 process CC1PLUS_SPEC as a spec.
445 %| output "-" if the input for the current command is coming from a pipe.
446 %* substitute the variable part of a matched option. (See below.)
447 Note that each comma in the substituted string is replaced by
449 %{S} substitutes the -S switch, if that switch was given to CC.
450 If that switch was not specified, this substitutes nothing.
451 Here S is a metasyntactic variable.
452 %{S*} substitutes all the switches specified to CC whose names start
453 with -S. This is used for -o, -I, etc; switches that take
454 arguments. CC considers `-o foo' as being one switch whose
455 name starts with `o'. %{o*} would substitute this text,
456 including the space; thus, two arguments would be generated.
457 %{^S*} likewise, but don't put a blank between a switch and any args.
458 %{S*&T*} likewise, but preserve order of S and T options (the order
459 of S and T in the spec is not significant). Can be any number
460 of ampersand-separated variables; for each the wild card is
461 optional. Useful for CPP as %{D*&U*&A*}.
462 %{S*:X} substitutes X if one or more switches whose names start with -S are
463 specified to CC. Note that the tail part of the -S option
464 (i.e. the part matched by the `*') will be substituted for each
465 occurrence of %* within X.
466 %{<S} remove all occurrences of -S from the command line.
467 Note - this option is position dependent. % commands in the
468 spec string before this option will see -S, % commands in the
469 spec string after this option will not.
470 %{S:X} substitutes X, but only if the -S switch was given to CC.
471 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
472 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
473 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
474 %{.S:X} substitutes X, but only if processing a file with suffix S.
475 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
476 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
477 combined with ! and . as above binding stronger than the OR.
478 %(Spec) processes a specification defined in a specs file as *Spec:
479 %[Spec] as above, but put __ around -D arguments
481 The conditional text X in a %{S:X} or %{!S:X} construct may contain
482 other nested % constructs or spaces, or even newlines. They are
483 processed as usual, as described above.
485 The -O, -f, -m, and -W switches are handled specifically in these
486 constructs. If another value of -O or the negated form of a -f, -m, or
487 -W switch is found later in the command line, the earlier switch
488 value is ignored, except with {S*} where S is just one letter; this
489 passes all matching options.
491 The character | at the beginning of the predicate text is used to indicate
492 that a command should be piped to the following command, but only if -pipe
495 Note that it is built into CC which switches take arguments and which
496 do not. You might think it would be useful to generalize this to
497 allow each compiler's spec to say which switches take arguments. But
498 this cannot be done in a consistent fashion. CC cannot even decide
499 which input files have been specified without knowing which switches
500 take arguments, and it must know which input files to compile in order
501 to tell which compilers to run.
503 CC also knows implicitly that arguments starting in `-l' are to be
504 treated as compiler output files, and passed to the linker in their
505 proper position among the other output files. */
507 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
509 /* config.h can define ASM_SPEC to provide extra args to the assembler
510 or extra switch-translations. */
515 /* config.h can define ASM_FINAL_SPEC to run a post processor after
516 the assembler has run. */
517 #ifndef ASM_FINAL_SPEC
518 #define ASM_FINAL_SPEC ""
521 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
522 or extra switch-translations. */
527 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
528 or extra switch-translations. */
533 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
534 or extra switch-translations. */
536 #define CC1PLUS_SPEC ""
539 /* config.h can define LINK_SPEC to provide extra args to the linker
540 or extra switch-translations. */
545 /* config.h can define LIB_SPEC to override the default libraries. */
547 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
550 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
553 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
554 /* Have gcc do the search for libgcc.a. */
555 #define LIBGCC_SPEC "libgcc.a%s"
557 #define LIBGCC_SPEC "-lgcc"
561 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
562 #ifndef STARTFILE_SPEC
563 #define STARTFILE_SPEC \
564 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
567 /* config.h can define SWITCHES_NEED_SPACES to control which options
568 require spaces between the option and the argument. */
569 #ifndef SWITCHES_NEED_SPACES
570 #define SWITCHES_NEED_SPACES ""
573 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
575 #define ENDFILE_SPEC ""
578 /* This spec is used for telling cpp whether char is signed or not. */
579 #ifndef SIGNED_CHAR_SPEC
580 /* Use #if rather than ?:
581 because MIPS C compiler rejects like ?: in initializers. */
582 #if DEFAULT_SIGNED_CHAR
583 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
585 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
590 #define LINKER_NAME "collect2"
593 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
595 #ifndef ASM_DEBUG_SPEC
596 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
597 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
598 # define ASM_DEBUG_SPEC \
599 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
600 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
601 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
603 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
604 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
606 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
607 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
611 #ifndef ASM_DEBUG_SPEC
612 # define ASM_DEBUG_SPEC ""
615 /* Here is the spec for running the linker, after compiling all files. */
617 /* -u* was put back because both BSD and SysV seem to support it. */
618 /* %{static:} simply prevents an error message if the target machine
619 doesn't handle -static. */
620 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
621 scripts which exist in user specified directories, or in standard
623 #ifndef LINK_COMMAND_SPEC
624 #define LINK_COMMAND_SPEC "\
625 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
626 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
627 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
628 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
629 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
632 #ifndef LINK_LIBGCC_SPEC
633 # ifdef LINK_LIBGCC_SPECIAL
634 /* Don't generate -L options for startfile prefix list. */
635 # define LINK_LIBGCC_SPEC ""
637 /* Do generate them. */
638 # define LINK_LIBGCC_SPEC "%D"
642 static const char *asm_debug = ASM_DEBUG_SPEC;
643 static const char *cpp_spec = CPP_SPEC;
644 static const char *cpp_predefines = CPP_PREDEFINES;
645 static const char *cc1_spec = CC1_SPEC;
646 static const char *cc1plus_spec = CC1PLUS_SPEC;
647 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
648 static const char *asm_spec = ASM_SPEC;
649 static const char *asm_final_spec = ASM_FINAL_SPEC;
650 static const char *link_spec = LINK_SPEC;
651 static const char *lib_spec = LIB_SPEC;
652 static const char *libgcc_spec = LIBGCC_SPEC;
653 static const char *endfile_spec = ENDFILE_SPEC;
654 static const char *startfile_spec = STARTFILE_SPEC;
655 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
656 static const char *linker_name_spec = LINKER_NAME;
657 static const char *link_command_spec = LINK_COMMAND_SPEC;
658 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
660 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
661 There should be no need to override these in target dependent files,
662 but we need to copy them to the specs file so that newer versions
663 of the GCC driver can correctly drive older tool chains with the
664 appropriate -B options. */
666 static const char *trad_capable_cpp =
667 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
669 static const char *cpp_options =
670 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
671 %{std*} %{nostdinc*}\
672 %{C} %{v} %{I*} %{P} %{$} %I\
673 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
674 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
675 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
676 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
677 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
678 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
679 %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
680 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
681 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
682 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
683 %{fshow-column} %{fno-show-column}\
684 %{fleading-underscore} %{fno-leading-underscore}\
685 %{fno-operator-names} %{ftabstop=*} %{remap}\
686 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
689 /* NB: This is shared amongst all front-ends. */
690 static const char *cc1_options =
691 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
692 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
693 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
694 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
695 %{Qn:-fno-ident} %{--help:--help}\
696 %{--target-help:--target-help}\
697 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
698 %{fsyntax-only:-o %j} %{-param*}";
700 static const char *asm_options =
701 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
703 static const char *invoke_as =
704 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
706 /* Some compilers have limits on line lengths, and the multilib_select
707 and/or multilib_matches strings can be very long, so we build them at
709 static struct obstack multilib_obstack;
710 static const char *multilib_select;
711 static const char *multilib_matches;
712 static const char *multilib_defaults;
713 static const char *multilib_exclusions;
714 #include "multilib.h"
716 /* Check whether a particular argument is a default argument. */
718 #ifndef MULTILIB_DEFAULTS
719 #define MULTILIB_DEFAULTS { "" }
722 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
726 struct user_specs *next;
727 const char *filename;
730 static struct user_specs *user_specs_head, *user_specs_tail;
732 /* This defines which switch letters take arguments. */
734 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
735 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
736 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
737 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
738 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
739 || (CHAR) == 'B' || (CHAR) == 'b')
741 #ifndef SWITCH_TAKES_ARG
742 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
745 /* This defines which multi-letter switches take arguments. */
747 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
748 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
749 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
750 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
751 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
752 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
753 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
754 || !strcmp (STR, "specs") \
755 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
757 #ifndef WORD_SWITCH_TAKES_ARG
758 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
761 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
762 /* This defines which switches stop a full compilation. */
763 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
764 ((CHAR) == 'c' || (CHAR) == 'S')
766 #ifndef SWITCH_CURTAILS_COMPILATION
767 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
768 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
772 /* Record the mapping from file suffixes for compilation specs. */
776 const char *suffix; /* Use this compiler for input files
777 whose names end in this suffix. */
779 const char *spec; /* To use this compiler, run this spec. */
781 const char *cpp_spec; /* If non-NULL, substitute this spec
782 for `%C', rather than the usual
786 /* Pointer to a vector of `struct compiler' that gives the spec for
787 compiling a file, based on its suffix.
788 A file that does not end in any of these suffixes will be passed
789 unchanged to the loader and nothing else will be done to it.
791 An entry containing two 0s is used to terminate the vector.
793 If multiple entries match a file, the last matching one is used. */
795 static struct compiler *compilers;
797 /* Number of entries in `compilers', not counting the null terminator. */
799 static int n_compilers;
801 /* The default list of file name suffixes and their compilation specs. */
803 static struct compiler default_compilers[] =
805 /* Add lists of suffixes of known languages here. If those languages
806 were not present when we built the driver, we will hit these copies
807 and be given a more meaningful error than "file not used since
808 linking is not done". */
809 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
810 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
811 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
813 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
814 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
815 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
816 {".r", "#Ratfor", 0},
817 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
818 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
819 {".java", "#Java", 0}, {".class", "#Java", 0},
820 {".zip", "#Java", 0}, {".jar", "#Java", 0},
821 /* Next come the entries for C. */
824 /* cc1 has an integrated ISO C preprocessor. We should invoke the
825 external preprocessor if -save-temps or -traditional is given. */
826 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
828 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
829 %(cpp_options) %b.i \n\
830 cc1 -fpreprocessed %b.i %(cc1_options)}\
832 %{traditional|ftraditional|traditional-cpp:\
833 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
834 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
835 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
836 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
837 %{!fsyntax-only:%(invoke_as)}}}}", 0},
839 "%{!E:%e-E required when input is from standard input}\
840 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
841 {".h", "@c-header", 0},
843 "%{!E:%ecompilation of header file requested} \
844 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
845 {".i", "@cpp-output", 0},
847 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
848 {".s", "@assembler", 0},
850 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
851 {".S", "@assembler-with-cpp", 0},
852 {"@assembler-with-cpp",
853 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
854 %{!M:%{!MM:%{!E:%{!S:-o %{|!pipe:%g.s} |\n\
855 as %(asm_debug) %(asm_options) %{!pipe:%g.s} %A }}}}", 0},
857 /* Mark end of table */
861 /* Number of elements in default_compilers, not counting the terminator. */
863 static int n_default_compilers
864 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
866 /* A vector of options to give to the linker.
867 These options are accumulated by %x,
868 and substituted into the linker command with %X. */
869 static int n_linker_options;
870 static char **linker_options;
872 /* A vector of options to give to the assembler.
873 These options are accumulated by -Wa,
874 and substituted into the assembler command with %Y. */
875 static int n_assembler_options;
876 static char **assembler_options;
878 /* A vector of options to give to the preprocessor.
879 These options are accumulated by -Wp,
880 and substituted into the preprocessor command with %Z. */
881 static int n_preprocessor_options;
882 static char **preprocessor_options;
884 /* Define how to map long options into short ones. */
886 /* This structure describes one mapping. */
889 /* The long option's name. */
890 const char *const name;
891 /* The equivalent short option. */
892 const char *const equivalent;
893 /* Argument info. A string of flag chars; NULL equals no options.
894 a => argument required.
895 o => argument optional.
896 j => join argument to equivalent, making one word.
897 * => require other text after NAME as an argument. */
898 const char *const arg_info;
901 /* This is the table of mappings. Mappings are tried sequentially
902 for each option encountered; the first one that matches, wins. */
904 static const struct option_map option_map[] =
906 {"--all-warnings", "-Wall", 0},
907 {"--ansi", "-ansi", 0},
908 {"--assemble", "-S", 0},
909 {"--assert", "-A", "a"},
910 {"--classpath", "-fclasspath=", "aj"},
911 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
912 {"--comments", "-C", 0},
913 {"--compile", "-c", 0},
914 {"--debug", "-g", "oj"},
915 {"--define-macro", "-D", "aj"},
916 {"--dependencies", "-M", 0},
917 {"--dump", "-d", "a"},
918 {"--dumpbase", "-dumpbase", "a"},
919 {"--entry", "-e", 0},
920 {"--extra-warnings", "-W", 0},
921 {"--for-assembler", "-Wa", "a"},
922 {"--for-linker", "-Xlinker", "a"},
923 {"--force-link", "-u", "a"},
924 {"--imacros", "-imacros", "a"},
925 {"--include", "-include", "a"},
926 {"--include-barrier", "-I-", 0},
927 {"--include-directory", "-I", "aj"},
928 {"--include-directory-after", "-idirafter", "a"},
929 {"--include-prefix", "-iprefix", "a"},
930 {"--include-with-prefix", "-iwithprefix", "a"},
931 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
932 {"--include-with-prefix-after", "-iwithprefix", "a"},
933 {"--language", "-x", "a"},
934 {"--library-directory", "-L", "a"},
935 {"--machine", "-m", "aj"},
936 {"--machine-", "-m", "*j"},
937 {"--no-line-commands", "-P", 0},
938 {"--no-precompiled-includes", "-noprecomp", 0},
939 {"--no-standard-includes", "-nostdinc", 0},
940 {"--no-standard-libraries", "-nostdlib", 0},
941 {"--no-warnings", "-w", 0},
942 {"--optimize", "-O", "oj"},
943 {"--output", "-o", "a"},
944 {"--output-class-directory", "-foutput-class-dir=", "ja"},
945 {"--param", "--param", "a"},
946 {"--pedantic", "-pedantic", 0},
947 {"--pedantic-errors", "-pedantic-errors", 0},
948 {"--pipe", "-pipe", 0},
949 {"--prefix", "-B", "a"},
950 {"--preprocess", "-E", 0},
951 {"--print-search-dirs", "-print-search-dirs", 0},
952 {"--print-file-name", "-print-file-name=", "aj"},
953 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
954 {"--print-missing-file-dependencies", "-MG", 0},
955 {"--print-multi-lib", "-print-multi-lib", 0},
956 {"--print-multi-directory", "-print-multi-directory", 0},
957 {"--print-prog-name", "-print-prog-name=", "aj"},
958 {"--profile", "-p", 0},
959 {"--profile-blocks", "-a", 0},
960 {"--quiet", "-q", 0},
961 {"--save-temps", "-save-temps", 0},
962 {"--shared", "-shared", 0},
963 {"--silent", "-q", 0},
964 {"--specs", "-specs=", "aj"},
965 {"--static", "-static", 0},
966 {"--std", "-std=", "aj"},
967 {"--symbolic", "-symbolic", 0},
968 {"--target", "-b", "a"},
969 {"--time", "-time", 0},
970 {"--trace-includes", "-H", 0},
971 {"--traditional", "-traditional", 0},
972 {"--traditional-cpp", "-traditional-cpp", 0},
973 {"--trigraphs", "-trigraphs", 0},
974 {"--undefine-macro", "-U", "aj"},
975 {"--use-version", "-V", "a"},
976 {"--user-dependencies", "-MM", 0},
977 {"--verbose", "-v", 0},
978 {"--version", "-dumpversion", 0},
979 {"--warn-", "-W", "*j"},
980 {"--write-dependencies", "-MD", 0},
981 {"--write-user-dependencies", "-MMD", 0},
986 #ifdef TARGET_OPTION_TRANSLATE_TABLE
987 static const struct {
988 const char *const option_found;
989 const char *const replacements;
990 } target_option_translations[] =
992 TARGET_OPTION_TRANSLATE_TABLE,
997 /* Translate the options described by *ARGCP and *ARGVP.
998 Make a new vector and store it back in *ARGVP,
999 and store its length in *ARGVC. */
1002 translate_options (argcp, argvp)
1004 const char *const **argvp;
1008 const char *const *argv = *argvp;
1009 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1011 (const char **) xmalloc (newvsize);
1015 newv[newindex++] = argv[i++];
1019 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1023 target_option_translations[tott_idx].option_found;
1026 if (strcmp (target_option_translations[tott_idx].option_found,
1033 for (sp = target_option_translations[tott_idx].replacements;
1040 newvsize += spaces * sizeof (const char *);
1041 newv = (const char **) xrealloc (newv, newvsize);
1043 sp = target_option_translations[tott_idx].replacements;
1052 newv[newindex++] = np;
1053 while (*np != ' ' && *np)
1064 if (target_option_translations[tott_idx].option_found)
1068 /* Translate -- options. */
1069 if (argv[i][0] == '-' && argv[i][1] == '-')
1072 /* Find a mapping that applies to this option. */
1073 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1075 size_t optlen = strlen (option_map[j].name);
1076 size_t arglen = strlen (argv[i]);
1077 size_t complen = arglen > optlen ? optlen : arglen;
1078 const char *arginfo = option_map[j].arg_info;
1083 if (!strncmp (argv[i], option_map[j].name, complen))
1085 const char *arg = 0;
1087 if (arglen < optlen)
1090 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1091 if (strlen (option_map[k].name) >= arglen
1092 && !strncmp (argv[i], option_map[k].name, arglen))
1094 error ("ambiguous abbreviation %s", argv[i]);
1098 if (k != ARRAY_SIZE (option_map))
1102 if (arglen > optlen)
1104 /* If the option has an argument, accept that. */
1105 if (argv[i][optlen] == '=')
1106 arg = argv[i] + optlen + 1;
1108 /* If this mapping requires extra text at end of name,
1109 accept that as "argument". */
1110 else if (strchr (arginfo, '*') != 0)
1111 arg = argv[i] + optlen;
1113 /* Otherwise, extra text at end means mismatch.
1114 Try other mappings. */
1119 else if (strchr (arginfo, '*') != 0)
1121 error ("incomplete `%s' option", option_map[j].name);
1125 /* Handle arguments. */
1126 if (strchr (arginfo, 'a') != 0)
1132 error ("missing argument to `%s' option",
1133 option_map[j].name);
1140 else if (strchr (arginfo, '*') != 0)
1142 else if (strchr (arginfo, 'o') == 0)
1145 error ("extraneous argument to `%s' option",
1146 option_map[j].name);
1150 /* Store the translation as one argv elt or as two. */
1151 if (arg != 0 && strchr (arginfo, 'j') != 0)
1152 newv[newindex++] = concat (option_map[j].equivalent, arg,
1156 newv[newindex++] = option_map[j].equivalent;
1157 newv[newindex++] = arg;
1160 newv[newindex++] = option_map[j].equivalent;
1168 /* Handle old-fashioned options--just copy them through,
1169 with their arguments. */
1170 else if (argv[i][0] == '-')
1172 const char *p = argv[i] + 1;
1176 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1177 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1178 else if (WORD_SWITCH_TAKES_ARG (p))
1179 nskip += WORD_SWITCH_TAKES_ARG (p);
1180 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1183 else if (! strcmp (p, "Xlinker"))
1186 /* Watch out for an option at the end of the command line that
1187 is missing arguments, and avoid skipping past the end of the
1189 if (nskip + i > argc)
1194 newv[newindex++] = argv[i++];
1199 /* Ordinary operands, or +e options. */
1200 newv[newindex++] = argv[i++];
1215 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1216 be considered whitespace. */
1217 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1219 else if (*p == '\n' || *p == ' ' || *p == '\t')
1233 /* Structures to keep track of prefixes to try when looking for files. */
1237 const char *prefix; /* String to prepend to the path. */
1238 struct prefix_list *next; /* Next in linked list. */
1239 int require_machine_suffix; /* Don't use without machine_suffix. */
1240 /* 2 means try both machine_suffix and just_machine_suffix. */
1241 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1242 int priority; /* Sort key - priority within list */
1247 struct prefix_list *plist; /* List of prefixes to try */
1248 int max_len; /* Max length of a prefix in PLIST */
1249 const char *name; /* Name of this list (used in config stuff) */
1252 /* List of prefixes to try when looking for executables. */
1254 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1256 /* List of prefixes to try when looking for startup (crt0) files. */
1258 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1260 /* List of prefixes to try when looking for include files. */
1262 static struct path_prefix include_prefixes = { 0, 0, "include" };
1264 /* Suffix to attach to directories searched for commands.
1265 This looks like `MACHINE/VERSION/'. */
1267 static const char *machine_suffix = 0;
1269 /* Suffix to attach to directories searched for commands.
1270 This is just `MACHINE/'. */
1272 static const char *just_machine_suffix = 0;
1274 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1276 static const char *gcc_exec_prefix;
1278 /* Default prefixes to attach to command names. */
1280 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1281 #undef MD_EXEC_PREFIX
1282 #undef MD_STARTFILE_PREFIX
1283 #undef MD_STARTFILE_PREFIX_1
1286 /* If no prefixes defined, use the null string, which will disable them. */
1287 #ifndef MD_EXEC_PREFIX
1288 #define MD_EXEC_PREFIX ""
1290 #ifndef MD_STARTFILE_PREFIX
1291 #define MD_STARTFILE_PREFIX ""
1293 #ifndef MD_STARTFILE_PREFIX_1
1294 #define MD_STARTFILE_PREFIX_1 ""
1297 /* Supply defaults for the standard prefixes. */
1299 #ifndef STANDARD_EXEC_PREFIX
1300 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1302 #ifndef STANDARD_STARTFILE_PREFIX
1303 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1305 #ifndef TOOLDIR_BASE_PREFIX
1306 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1308 #ifndef STANDARD_BINDIR_PREFIX
1309 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1312 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1313 static const char *const standard_exec_prefix_1 = "/usr/lib/gcc/";
1314 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1316 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1317 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1318 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1319 static const char *const standard_startfile_prefix_1 = "/lib/";
1320 static const char *const standard_startfile_prefix_2 = "/usr/lib/";
1322 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1323 static const char *tooldir_prefix;
1325 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1327 /* Subdirectory to use for locating libraries. Set by
1328 set_multilib_dir based on the compilation options. */
1330 static const char *multilib_dir;
1332 /* Structure to keep track of the specs that have been defined so far.
1333 These are accessed using %(specname) or %[specname] in a compiler
1338 /* The following 2 fields must be first */
1339 /* to allow EXTRA_SPECS to be initialized */
1340 const char *name; /* name of the spec. */
1341 const char *ptr; /* available ptr if no static pointer */
1343 /* The following fields are not initialized */
1344 /* by EXTRA_SPECS */
1345 const char **ptr_spec; /* pointer to the spec itself. */
1346 struct spec_list *next; /* Next spec in linked list. */
1347 int name_len; /* length of the name */
1348 int alloc_p; /* whether string was allocated */
1351 #define INIT_STATIC_SPEC(NAME,PTR) \
1352 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1354 /* List of statically defined specs. */
1355 static struct spec_list static_specs[] =
1357 INIT_STATIC_SPEC ("asm", &asm_spec),
1358 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1359 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1360 INIT_STATIC_SPEC ("asm_options", &asm_options),
1361 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1362 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1363 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1364 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1365 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1366 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1367 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1368 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1369 INIT_STATIC_SPEC ("link", &link_spec),
1370 INIT_STATIC_SPEC ("lib", &lib_spec),
1371 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1372 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1373 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1374 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1375 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1376 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1377 INIT_STATIC_SPEC ("version", &compiler_version),
1378 INIT_STATIC_SPEC ("multilib", &multilib_select),
1379 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1380 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1381 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1382 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1383 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1384 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1385 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1386 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1387 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1390 #ifdef EXTRA_SPECS /* additional specs needed */
1391 /* Structure to keep track of just the first two args of a spec_list.
1392 That is all that the EXTRA_SPECS macro gives us. */
1395 const char *const name;
1396 const char *const ptr;
1399 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1400 static struct spec_list *extra_specs = (struct spec_list *) 0;
1403 /* List of dynamically allocates specs that have been defined so far. */
1405 static struct spec_list *specs = (struct spec_list *) 0;
1407 /* Add appropriate libgcc specs to OBSTACK, taking into account
1408 various permutations of -shared-libgcc, -shared, and such. */
1410 #ifdef ENABLE_SHARED_LIBGCC
1412 init_gcc_specs (obstack, shared_name, static_name)
1413 struct obstack *obstack;
1414 const char *shared_name;
1415 const char *static_name;
1419 /* If we see -shared-libgcc, then use the shared version. */
1420 sprintf (buffer, "%%{shared-libgcc:%s %s}", shared_name, static_name);
1421 obstack_grow (obstack, buffer, strlen (buffer));
1422 /* If we see -static-libgcc, then use the static version. */
1423 sprintf (buffer, "%%{static-libgcc:%s}", static_name);
1424 obstack_grow (obstack, buffer, strlen (buffer));
1425 /* Otherwise, if we see -shared, then use the shared version. */
1427 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s %s}}}",
1428 shared_name, static_name);
1429 obstack_grow (obstack, buffer, strlen (buffer));
1430 /* Otherwise, use the static version. */
1432 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1434 obstack_grow (obstack, buffer, strlen (buffer));
1436 #endif /* ENABLE_SHARED_LIBGCC */
1438 /* Initialize the specs lookup routines. */
1443 struct spec_list *next = (struct spec_list *) 0;
1444 struct spec_list *sl = (struct spec_list *) 0;
1448 return; /* Already initialized. */
1451 notice ("Using builtin specs.\n");
1454 extra_specs = (struct spec_list *)
1455 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1457 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1459 sl = &extra_specs[i];
1460 sl->name = extra_specs_1[i].name;
1461 sl->ptr = extra_specs_1[i].ptr;
1463 sl->name_len = strlen (sl->name);
1464 sl->ptr_spec = &sl->ptr;
1469 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1471 sl = &static_specs[i];
1476 #ifdef ENABLE_SHARED_LIBGCC
1477 /* ??? If neither -shared-libgcc nor --static-libgcc was
1478 seen, then we should be making an educated guess. Some proposed
1479 heuristics for ELF include:
1481 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1482 program will be doing dynamic loading, which will likely
1483 need the shared libgcc.
1485 (2) If "-ldl", then it's also a fair bet that we're doing
1488 (3) For each ET_DYN we're linking against (either through -lfoo
1489 or /some/path/foo.so), check to see whether it or one of
1490 its dependencies depends on a shared libgcc.
1494 If the runtime is fixed to look for program headers instead
1495 of calling __register_frame_info at all, for each object,
1496 use the shared libgcc if any EH symbol referenced.
1498 If crtstuff is fixed to not invoke __register_frame_info
1499 automatically, for each object, use the shared libgcc if
1500 any non-empty unwind section found.
1502 Doing any of this probably requires invoking an external program to
1503 do the actual object file scanning. */
1505 const char *p = libgcc_spec;
1508 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1509 when given the proper command line arguments. */
1512 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1514 init_gcc_specs (&obstack,
1515 #ifdef NO_SHARED_LIBGCC_MULTILIB
1525 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1527 /* Ug. We don't know shared library extensions. Hope that
1528 systems that use this form don't do shared libraries. */
1529 init_gcc_specs (&obstack,
1530 #ifdef NO_SHARED_LIBGCC_MULTILIB
1542 obstack_1grow (&obstack, *p);
1543 in_sep = (*p == ' ');
1548 obstack_1grow (&obstack, '\0');
1549 libgcc_spec = obstack_finish (&obstack);
1552 #ifdef USE_AS_TRADITIONAL_FORMAT
1553 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1555 static const char tf[] = "--traditional-format ";
1556 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1557 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1558 asm_spec = obstack_finish (&obstack);
1565 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1566 removed; If the spec starts with a + then SPEC is added to the end of the
1570 set_spec (name, spec)
1574 struct spec_list *sl;
1575 const char *old_spec;
1576 int name_len = strlen (name);
1579 /* If this is the first call, initialize the statically allocated specs. */
1582 struct spec_list *next = (struct spec_list *) 0;
1583 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1585 sl = &static_specs[i];
1592 /* See if the spec already exists. */
1593 for (sl = specs; sl; sl = sl->next)
1594 if (name_len == sl->name_len && !strcmp (sl->name, name))
1599 /* Not found - make it. */
1600 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1601 sl->name = xstrdup (name);
1602 sl->name_len = name_len;
1603 sl->ptr_spec = &sl->ptr;
1605 *(sl->ptr_spec) = "";
1610 old_spec = *(sl->ptr_spec);
1611 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1612 ? concat (old_spec, spec + 1, NULL)
1617 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1620 /* Free the old spec. */
1621 if (old_spec && sl->alloc_p)
1622 free ((PTR) old_spec);
1627 /* Accumulate a command (program name and args), and run it. */
1629 /* Vector of pointers to arguments in the current line of specifications. */
1631 static const char **argbuf;
1633 /* Number of elements allocated in argbuf. */
1635 static int argbuf_length;
1637 /* Number of elements in argbuf currently in use (containing args). */
1639 static int argbuf_index;
1641 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1642 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1645 static struct temp_name {
1646 const char *suffix; /* suffix associated with the code. */
1647 int length; /* strlen (suffix). */
1648 int unique; /* Indicates whether %g or %u/%U was used. */
1649 const char *filename; /* associated filename. */
1650 int filename_length; /* strlen (filename). */
1651 struct temp_name *next;
1654 /* Number of commands executed so far. */
1656 static int execution_count;
1658 /* Number of commands that exited with a signal. */
1660 static int signal_count;
1662 /* Name with which this program was invoked. */
1664 static const char *programname;
1666 /* Clear out the vector of arguments (after a command is executed). */
1674 /* Add one argument to the vector at the end.
1675 This is done when a space is seen or at the end of the line.
1676 If DELETE_ALWAYS is nonzero, the arg is a filename
1677 and the file should be deleted eventually.
1678 If DELETE_FAILURE is nonzero, the arg is a filename
1679 and the file should be deleted if this compilation fails. */
1682 store_arg (arg, delete_always, delete_failure)
1684 int delete_always, delete_failure;
1686 if (argbuf_index + 1 == argbuf_length)
1688 = (const char **) xrealloc (argbuf,
1689 (argbuf_length *= 2) * sizeof (const char *));
1691 argbuf[argbuf_index++] = arg;
1692 argbuf[argbuf_index] = 0;
1694 if (delete_always || delete_failure)
1695 record_temp_file (arg, delete_always, delete_failure);
1698 /* Load specs from a file name named FILENAME, replacing occurrences of
1699 various different types of line-endings, \r\n, \n\r and just \r, with
1703 load_specs (filename)
1704 const char *filename;
1708 struct stat statbuf;
1715 notice ("Reading specs from %s\n", filename);
1717 /* Open and stat the file. */
1718 desc = open (filename, O_RDONLY, 0);
1720 pfatal_with_name (filename);
1721 if (stat (filename, &statbuf) < 0)
1722 pfatal_with_name (filename);
1724 /* Read contents of file into BUFFER. */
1725 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1726 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1728 pfatal_with_name (filename);
1729 buffer[readlen] = 0;
1732 specs = xmalloc (readlen + 1);
1734 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1740 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1742 else if (*(buffer_p + 1) == '\n') /* \r\n */
1756 /* Read compilation specs from a file named FILENAME,
1757 replacing the default ones.
1759 A suffix which starts with `*' is a definition for
1760 one of the machine-specific sub-specs. The "suffix" should be
1761 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1762 The corresponding spec is stored in asm_spec, etc.,
1763 rather than in the `compilers' vector.
1765 Anything invalid in the file is a fatal error. */
1768 read_specs (filename, main_p)
1769 const char *filename;
1775 buffer = load_specs (filename);
1777 /* Scan BUFFER for specs, putting them in the vector. */
1783 char *in, *out, *p1, *p2, *p3;
1785 /* Advance P in BUFFER to the next nonblank nocomment line. */
1786 p = skip_whitespace (p);
1790 /* Is this a special command that starts with '%'? */
1791 /* Don't allow this for the main specs file, since it would
1792 encourage people to overwrite it. */
1793 if (*p == '%' && !main_p)
1796 while (*p && *p != '\n')
1802 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1803 && (p1[sizeof "%include" - 1] == ' '
1804 || p1[sizeof "%include" - 1] == '\t'))
1808 p1 += sizeof ("%include");
1809 while (*p1 == ' ' || *p1 == '\t')
1812 if (*p1++ != '<' || p[-2] != '>')
1813 fatal ("specs %%include syntax malformed after %ld characters",
1814 (long) (p1 - buffer + 1));
1817 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1818 read_specs (new_filename ? new_filename : p1, FALSE);
1821 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1822 && (p1[sizeof "%include_noerr" - 1] == ' '
1823 || p1[sizeof "%include_noerr" - 1] == '\t'))
1827 p1 += sizeof "%include_noerr";
1828 while (*p1 == ' ' || *p1 == '\t')
1831 if (*p1++ != '<' || p[-2] != '>')
1832 fatal ("specs %%include syntax malformed after %ld characters",
1833 (long) (p1 - buffer + 1));
1836 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1838 read_specs (new_filename, FALSE);
1839 else if (verbose_flag)
1840 notice ("could not find specs file %s\n", p1);
1843 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1844 && (p1[sizeof "%rename" - 1] == ' '
1845 || p1[sizeof "%rename" - 1] == '\t'))
1848 struct spec_list *sl;
1850 /* Get original name */
1851 p1 += sizeof "%rename";
1852 while (*p1 == ' ' || *p1 == '\t')
1855 if (! ISALPHA ((unsigned char) *p1))
1856 fatal ("specs %%rename syntax malformed after %ld characters",
1857 (long) (p1 - buffer));
1860 while (*p2 && !ISSPACE ((unsigned char) *p2))
1863 if (*p2 != ' ' && *p2 != '\t')
1864 fatal ("specs %%rename syntax malformed after %ld characters",
1865 (long) (p2 - buffer));
1869 while (*p2 == ' ' || *p2 == '\t')
1872 if (! ISALPHA ((unsigned char) *p2))
1873 fatal ("specs %%rename syntax malformed after %ld characters",
1874 (long) (p2 - buffer));
1876 /* Get new spec name. */
1878 while (*p3 && !ISSPACE ((unsigned char) *p3))
1882 fatal ("specs %%rename syntax malformed after %ld characters",
1883 (long) (p3 - buffer));
1886 for (sl = specs; sl; sl = sl->next)
1887 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1891 fatal ("specs %s spec was not found to be renamed", p1);
1893 if (strcmp (p1, p2) == 0)
1898 notice ("rename spec %s to %s\n", p1, p2);
1900 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1904 set_spec (p2, *(sl->ptr_spec));
1906 free ((PTR) *(sl->ptr_spec));
1908 *(sl->ptr_spec) = "";
1913 fatal ("specs unknown %% command after %ld characters",
1914 (long) (p1 - buffer));
1917 /* Find the colon that should end the suffix. */
1919 while (*p1 && *p1 != ':' && *p1 != '\n')
1922 /* The colon shouldn't be missing. */
1924 fatal ("specs file malformed after %ld characters",
1925 (long) (p1 - buffer));
1927 /* Skip back over trailing whitespace. */
1929 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1932 /* Copy the suffix to a string. */
1933 suffix = save_string (p, p2 - p);
1934 /* Find the next line. */
1935 p = skip_whitespace (p1 + 1);
1937 fatal ("specs file malformed after %ld characters",
1938 (long) (p - buffer));
1941 /* Find next blank line or end of string. */
1942 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1945 /* Specs end at the blank line and do not include the newline. */
1946 spec = save_string (p, p1 - p);
1949 /* Delete backslash-newline sequences from the spec. */
1954 if (in[0] == '\\' && in[1] == '\n')
1956 else if (in[0] == '#')
1957 while (*in && *in != '\n')
1965 if (suffix[0] == '*')
1967 if (! strcmp (suffix, "*link_command"))
1968 link_command_spec = spec;
1970 set_spec (suffix + 1, spec);
1974 /* Add this pair to the vector. */
1976 = ((struct compiler *)
1977 xrealloc (compilers,
1978 (n_compilers + 2) * sizeof (struct compiler)));
1980 compilers[n_compilers].suffix = suffix;
1981 compilers[n_compilers].spec = spec;
1983 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1987 link_command_spec = spec;
1990 if (link_command_spec == 0)
1991 fatal ("spec file has no spec for linking");
1994 /* Record the names of temporary files we tell compilers to write,
1995 and delete them at the end of the run. */
1997 /* This is the common prefix we use to make temp file names.
1998 It is chosen once for each run of this program.
1999 It is substituted into a spec by %g or %j.
2000 Thus, all temp file names contain this prefix.
2001 In practice, all temp file names start with this prefix.
2003 This prefix comes from the envvar TMPDIR if it is defined;
2004 otherwise, from the P_tmpdir macro if that is defined;
2005 otherwise, in /usr/tmp or /tmp;
2006 or finally the current directory if all else fails. */
2008 static const char *temp_filename;
2010 /* Length of the prefix. */
2012 static int temp_filename_length;
2014 /* Define the list of temporary files to delete. */
2019 struct temp_file *next;
2022 /* Queue of files to delete on success or failure of compilation. */
2023 static struct temp_file *always_delete_queue;
2024 /* Queue of files to delete on failure of compilation. */
2025 static struct temp_file *failure_delete_queue;
2027 /* Record FILENAME as a file to be deleted automatically.
2028 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2029 otherwise delete it in any case.
2030 FAIL_DELETE nonzero means delete it if a compilation step fails;
2031 otherwise delete it in any case. */
2034 record_temp_file (filename, always_delete, fail_delete)
2035 const char *filename;
2039 char *const name = xstrdup (filename);
2043 struct temp_file *temp;
2044 for (temp = always_delete_queue; temp; temp = temp->next)
2045 if (! strcmp (name, temp->name))
2048 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
2049 temp->next = always_delete_queue;
2051 always_delete_queue = temp;
2058 struct temp_file *temp;
2059 for (temp = failure_delete_queue; temp; temp = temp->next)
2060 if (! strcmp (name, temp->name))
2063 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
2064 temp->next = failure_delete_queue;
2066 failure_delete_queue = temp;
2072 /* Delete all the temporary files whose names we previously recorded. */
2075 delete_if_ordinary (name)
2082 printf ("Delete %s? (y or n) ", name);
2086 while ((c = getchar ()) != '\n' && c != EOF)
2089 if (i == 'y' || i == 'Y')
2091 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
2092 if (unlink (name) < 0)
2094 perror_with_name (name);
2098 delete_temp_files ()
2100 struct temp_file *temp;
2102 for (temp = always_delete_queue; temp; temp = temp->next)
2103 delete_if_ordinary (temp->name);
2104 always_delete_queue = 0;
2107 /* Delete all the files to be deleted on error. */
2110 delete_failure_queue ()
2112 struct temp_file *temp;
2114 for (temp = failure_delete_queue; temp; temp = temp->next)
2115 delete_if_ordinary (temp->name);
2119 clear_failure_queue ()
2121 failure_delete_queue = 0;
2124 /* Build a list of search directories from PATHS.
2125 PREFIX is a string to prepend to the list.
2126 If CHECK_DIR_P is non-zero we ensure the directory exists.
2127 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2128 It is also used by the --print-search-dirs flag. */
2131 build_search_list (paths, prefix, check_dir_p)
2132 struct path_prefix *paths;
2136 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2138 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2139 int first_time = TRUE;
2140 struct prefix_list *pprefix;
2142 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2143 obstack_1grow (&collect_obstack, '=');
2145 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2147 int len = strlen (pprefix->prefix);
2151 || is_directory (pprefix->prefix, machine_suffix, 0)))
2154 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2157 obstack_grow (&collect_obstack, pprefix->prefix, len);
2158 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2161 if (just_machine_suffix
2162 && pprefix->require_machine_suffix == 2
2164 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2167 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2170 obstack_grow (&collect_obstack, pprefix->prefix, len);
2171 obstack_grow (&collect_obstack, just_machine_suffix,
2175 if (! pprefix->require_machine_suffix)
2178 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2181 obstack_grow (&collect_obstack, pprefix->prefix, len);
2185 obstack_1grow (&collect_obstack, '\0');
2186 return obstack_finish (&collect_obstack);
2189 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2193 putenv_from_prefixes (paths, env_var)
2194 struct path_prefix *paths;
2195 const char *env_var;
2197 putenv (build_search_list (paths, env_var, 1));
2202 /* FIXME: the location independence code for VMS is hairier than this,
2203 and hasn't been written. */
2205 /* Split a filename into component directories. */
2208 split_directories (name, ptr_num_dirs)
2217 /* Count the number of directories. Special case MSDOS disk names as part
2218 of the initial directory. */
2220 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2221 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2226 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2228 while ((ch = *p++) != '\0')
2230 if (IS_DIR_SEPARATOR (ch))
2233 while (IS_DIR_SEPARATOR (*p))
2238 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2240 /* Now copy the directory parts. */
2243 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2244 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2246 dirs[num_dirs++] = save_string (p, 3);
2249 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2252 while ((ch = *p++) != '\0')
2254 if (IS_DIR_SEPARATOR (ch))
2256 while (IS_DIR_SEPARATOR (*p))
2259 dirs[num_dirs++] = save_string (q, p - q);
2265 dirs[num_dirs++] = save_string (q, p - 1 - q);
2267 dirs[num_dirs] = NULL;
2269 *ptr_num_dirs = num_dirs;
2274 /* Release storage held by split directories. */
2277 free_split_directories (dirs)
2282 while (dirs[i] != NULL)
2285 free ((char *) dirs);
2288 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2289 to PREFIX starting with the directory portion of PROGNAME and a relative
2290 pathname of the difference between BIN_PREFIX and PREFIX.
2292 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2293 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2294 function will return /red/green/blue/../omega.
2296 If no relative prefix can be found, return NULL. */
2299 make_relative_prefix (progname, bin_prefix, prefix)
2300 const char *progname;
2301 const char *bin_prefix;
2304 char **prog_dirs, **bin_dirs, **prefix_dirs;
2305 int prog_num, bin_num, prefix_num, std_loc_p;
2308 prog_dirs = split_directories (progname, &prog_num);
2309 bin_dirs = split_directories (bin_prefix, &bin_num);
2311 /* If there is no full pathname, try to find the program by checking in each
2312 of the directories specified in the PATH environment variable. */
2317 GET_ENV_PATH_LIST (temp, "PATH");
2320 char *startp, *endp, *nstore;
2321 size_t prefixlen = strlen (temp) + 1;
2325 nstore = (char *) alloca (prefixlen + strlen (progname) + 1);
2327 startp = endp = temp;
2330 if (*endp == PATH_SEPARATOR || *endp == 0)
2335 nstore[1] = DIR_SEPARATOR;
2340 strncpy (nstore, startp, endp - startp);
2341 if (! IS_DIR_SEPARATOR (endp[-1]))
2343 nstore[endp - startp] = DIR_SEPARATOR;
2344 nstore[endp - startp + 1] = 0;
2347 nstore[endp - startp] = 0;
2349 strcat (nstore, progname);
2350 if (! access (nstore, X_OK)
2351 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2352 || ! access (strcat (nstore, HOST_EXECUTABLE_SUFFIX), X_OK)
2356 free_split_directories (prog_dirs);
2358 prog_dirs = split_directories (progname, &prog_num);
2364 endp = startp = endp + 1;
2372 /* Remove the program name from comparison of directory names. */
2375 /* Determine if the compiler is installed in the standard location, and if
2376 so, we don't need to specify relative directories. Also, if argv[0]
2377 doesn't contain any directory specifiers, there is not much we can do. */
2379 if (prog_num == bin_num)
2381 for (i = 0; i < bin_num; i++)
2383 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2387 if (prog_num <= 0 || i == bin_num)
2390 free_split_directories (prog_dirs);
2391 free_split_directories (bin_dirs);
2392 prog_dirs = bin_dirs = (char **) 0;
2397 prefix_dirs = split_directories (prefix, &prefix_num);
2399 /* Find how many directories are in common between bin_prefix & prefix. */
2400 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2401 for (common = 0; common < n; common++)
2403 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2407 /* If there are no common directories, there can be no relative prefix. */
2410 free_split_directories (prog_dirs);
2411 free_split_directories (bin_dirs);
2412 free_split_directories (prefix_dirs);
2416 /* Build up the pathnames in argv[0]. */
2417 for (i = 0; i < prog_num; i++)
2418 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2420 /* Now build up the ..'s. */
2421 for (i = common; i < n; i++)
2423 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2424 obstack_1grow (&obstack, DIR_SEPARATOR);
2427 /* Put in directories to move over to prefix. */
2428 for (i = common; i < prefix_num; i++)
2429 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2431 free_split_directories (prog_dirs);
2432 free_split_directories (bin_dirs);
2433 free_split_directories (prefix_dirs);
2435 obstack_1grow (&obstack, '\0');
2436 return obstack_finish (&obstack);
2440 /* Check whether NAME can be accessed in MODE. This is like access,
2441 except that it never considers directories to be executable. */
2444 access_check (name, mode)
2452 if (stat (name, &st) < 0
2453 || S_ISDIR (st.st_mode))
2457 return access (name, mode);
2460 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2461 access to check permissions.
2462 Return 0 if not found, otherwise return its name, allocated with malloc. */
2465 find_a_file (pprefix, name, mode)
2466 struct path_prefix *pprefix;
2471 const char *const file_suffix =
2472 ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
2473 struct prefix_list *pl;
2474 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2476 #ifdef DEFAULT_ASSEMBLER
2477 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2478 return xstrdup (DEFAULT_ASSEMBLER);
2481 #ifdef DEFAULT_LINKER
2482 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2483 return xstrdup (DEFAULT_LINKER);
2487 len += strlen (machine_suffix);
2489 temp = xmalloc (len);
2491 /* Determine the filename to execute (special case for absolute paths). */
2493 if (IS_ABSOLUTE_PATHNAME (name))
2495 if (access (name, mode) == 0)
2497 strcpy (temp, name);
2502 for (pl = pprefix->plist; pl; pl = pl->next)
2506 /* Some systems have a suffix for executable files.
2507 So try appending that first. */
2508 if (file_suffix[0] != 0)
2510 strcpy (temp, pl->prefix);
2511 strcat (temp, machine_suffix);
2512 strcat (temp, name);
2513 strcat (temp, file_suffix);
2514 if (access_check (temp, mode) == 0)
2516 if (pl->used_flag_ptr != 0)
2517 *pl->used_flag_ptr = 1;
2522 /* Now try just the name. */
2523 strcpy (temp, pl->prefix);
2524 strcat (temp, machine_suffix);
2525 strcat (temp, name);
2526 if (access_check (temp, mode) == 0)
2528 if (pl->used_flag_ptr != 0)
2529 *pl->used_flag_ptr = 1;
2534 /* Certain prefixes are tried with just the machine type,
2535 not the version. This is used for finding as, ld, etc. */
2536 if (just_machine_suffix && pl->require_machine_suffix == 2)
2538 /* Some systems have a suffix for executable files.
2539 So try appending that first. */
2540 if (file_suffix[0] != 0)
2542 strcpy (temp, pl->prefix);
2543 strcat (temp, just_machine_suffix);
2544 strcat (temp, name);
2545 strcat (temp, file_suffix);
2546 if (access_check (temp, mode) == 0)
2548 if (pl->used_flag_ptr != 0)
2549 *pl->used_flag_ptr = 1;
2554 strcpy (temp, pl->prefix);
2555 strcat (temp, just_machine_suffix);
2556 strcat (temp, name);
2557 if (access_check (temp, mode) == 0)
2559 if (pl->used_flag_ptr != 0)
2560 *pl->used_flag_ptr = 1;
2565 /* Certain prefixes can't be used without the machine suffix
2566 when the machine or version is explicitly specified. */
2567 if (! pl->require_machine_suffix)
2569 /* Some systems have a suffix for executable files.
2570 So try appending that first. */
2571 if (file_suffix[0] != 0)
2573 strcpy (temp, pl->prefix);
2574 strcat (temp, name);
2575 strcat (temp, file_suffix);
2576 if (access_check (temp, mode) == 0)
2578 if (pl->used_flag_ptr != 0)
2579 *pl->used_flag_ptr = 1;
2584 strcpy (temp, pl->prefix);
2585 strcat (temp, name);
2586 if (access_check (temp, mode) == 0)
2588 if (pl->used_flag_ptr != 0)
2589 *pl->used_flag_ptr = 1;
2599 /* Ranking of prefixes in the sort list. -B prefixes are put before
2602 enum path_prefix_priority
2604 PREFIX_PRIORITY_B_OPT,
2605 PREFIX_PRIORITY_LAST
2608 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2609 order according to PRIORITY. Within each PRIORITY, new entries are
2612 If WARN is nonzero, we will warn if no file is found
2613 through this prefix. WARN should point to an int
2614 which will be set to 1 if this entry is used.
2616 COMPONENT is the value to be passed to update_path.
2618 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2619 the complete value of machine_suffix.
2620 2 means try both machine_suffix and just_machine_suffix. */
2623 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2624 struct path_prefix *pprefix;
2626 const char *component;
2627 /* enum prefix_priority */ int priority;
2628 int require_machine_suffix;
2631 struct prefix_list *pl, **prev;
2634 for (prev = &pprefix->plist;
2635 (*prev) != NULL && (*prev)->priority <= priority;
2636 prev = &(*prev)->next)
2639 /* Keep track of the longest prefix */
2641 prefix = update_path (prefix, component);
2642 len = strlen (prefix);
2643 if (len > pprefix->max_len)
2644 pprefix->max_len = len;
2646 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2647 pl->prefix = prefix;
2648 pl->require_machine_suffix = require_machine_suffix;
2649 pl->used_flag_ptr = warn;
2650 pl->priority = priority;
2654 /* Insert after PREV */
2659 /* Execute the command specified by the arguments on the current line of spec.
2660 When using pipes, this includes several piped-together commands
2661 with `|' between them.
2663 Return 0 if successful, -1 if failed. */
2669 int n_commands; /* # of command. */
2673 const char *prog; /* program name. */
2674 const char **argv; /* vector of args. */
2675 int pid; /* pid of process for this command. */
2678 struct command *commands; /* each command buffer with above info. */
2680 /* Count # of piped commands. */
2681 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2682 if (strcmp (argbuf[i], "|") == 0)
2685 /* Get storage for each command. */
2686 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2688 /* Split argbuf into its separate piped processes,
2689 and record info about each one.
2690 Also search for the programs that are to be run. */
2692 commands[0].prog = argbuf[0]; /* first command. */
2693 commands[0].argv = &argbuf[0];
2694 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2697 commands[0].argv[0] = string;
2699 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2700 if (strcmp (argbuf[i], "|") == 0)
2701 { /* each command. */
2702 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2703 fatal ("-pipe not supported");
2705 argbuf[i] = 0; /* termination of command args. */
2706 commands[n_commands].prog = argbuf[i + 1];
2707 commands[n_commands].argv = &argbuf[i + 1];
2708 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2710 commands[n_commands].argv[0] = string;
2714 argbuf[argbuf_index] = 0;
2716 /* If -v, print what we are about to do, and maybe query. */
2720 /* For help listings, put a blank line between sub-processes. */
2721 if (print_help_list)
2722 fputc ('\n', stderr);
2724 /* Print each piped command as a separate line. */
2725 for (i = 0; i < n_commands; i++)
2727 const char *const *j;
2729 for (j = commands[i].argv; *j; j++)
2730 fprintf (stderr, " %s", *j);
2732 /* Print a pipe symbol after all but the last command. */
2733 if (i + 1 != n_commands)
2734 fprintf (stderr, " |");
2735 fprintf (stderr, "\n");
2739 notice ("\nGo ahead? (y or n) ");
2743 while (getchar () != '\n')
2746 if (i != 'y' && i != 'Y')
2751 /* Run each piped subprocess. */
2753 for (i = 0; i < n_commands; i++)
2755 char *errmsg_fmt, *errmsg_arg;
2756 const char *string = commands[i].argv[0];
2758 /* For some bizarre reason, the second argument of execvp() is
2759 char *const *, not const char *const *. */
2760 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2761 programname, temp_filename,
2762 &errmsg_fmt, &errmsg_arg,
2763 ((i == 0 ? PEXECUTE_FIRST : 0)
2764 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2765 | (string == commands[i].prog
2766 ? PEXECUTE_SEARCH : 0)
2767 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2769 if (commands[i].pid == -1)
2770 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2772 if (string != commands[i].prog)
2773 free ((PTR) string);
2778 /* Wait for all the subprocesses to finish.
2779 We don't care what order they finish in;
2780 we know that N_COMMANDS waits will get them all.
2781 Ignore subprocesses that we don't know about,
2782 since they can be spawned by the process that exec'ed us. */
2786 #ifdef HAVE_GETRUSAGE
2788 double ut = 0.0, st = 0.0;
2791 for (i = 0; i < n_commands;)
2797 pid = pwait (commands[i].pid, &status, 0);
2801 #ifdef HAVE_GETRUSAGE
2804 /* getrusage returns the total resource usage of all children
2805 up to now. Copy the previous values into prus, get the
2806 current statistics, then take the difference. */
2809 getrusage (RUSAGE_CHILDREN, &rus);
2810 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2811 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2812 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2814 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2815 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2816 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2820 for (j = 0; j < n_commands; j++)
2821 if (commands[j].pid == pid)
2824 if (WIFSIGNALED (status))
2827 /* SIGPIPE is a special case. It happens in -pipe mode
2828 when the compiler dies before the preprocessor is
2829 done, or the assembler dies before the compiler is
2830 done. There's generally been an error already, and
2831 this is just fallout. So don't generate another error
2832 unless we would otherwise have succeeded. */
2833 if (WTERMSIG (status) == SIGPIPE
2834 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2839 Internal error: %s (program %s)\n\
2840 Please submit a full bug report.\n\
2841 See %s for instructions.",
2842 strsignal (WTERMSIG (status)), commands[j].prog,
2847 else if (WIFEXITED (status)
2848 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2850 if (WEXITSTATUS (status) > greatest_status)
2851 greatest_status = WEXITSTATUS (status);
2854 #ifdef HAVE_GETRUSAGE
2855 if (report_times && ut + st != 0)
2856 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2865 /* Find all the switches given to us
2866 and make a vector describing them.
2867 The elements of the vector are strings, one per switch given.
2868 If a switch uses following arguments, then the `part1' field
2869 is the switch itself and the `args' field
2870 is a null-terminated vector containing the following arguments.
2871 The `live_cond' field is:
2873 1 if the switch is true in a conditional spec,
2874 -1 if false (overridden by a later switch)
2875 -2 if this switch should be ignored (used in %{<S})
2876 The `validated' field is nonzero if any spec has looked at this switch;
2877 if it remains zero at the end of the run, it must be meaningless. */
2880 #define SWITCH_FALSE -1
2881 #define SWITCH_IGNORE -2
2882 #define SWITCH_LIVE 1
2889 unsigned char validated;
2890 unsigned char ordering;
2893 static struct switchstr *switches;
2895 static int n_switches;
2900 const char *language;
2903 /* Also a vector of input files specified. */
2905 static struct infile *infiles;
2909 /* This counts the number of libraries added by lang_specific_driver, so that
2910 we can tell if there were any user supplied any files or libraries. */
2912 static int added_libraries;
2914 /* And a vector of corresponding output files is made up later. */
2916 const char **outfiles;
2918 /* Used to track if none of the -B paths are used. */
2921 /* Used to track if standard path isn't used and -b or -V is specified. */
2922 static int warn_std;
2924 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2925 static int *warn_std_ptr = 0;
2927 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2929 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2930 is true if we should look for an executable suffix. DO_OBJ
2931 is true if we should look for an object suffix. */
2934 convert_filename (name, do_exe, do_obj)
2936 int do_exe ATTRIBUTE_UNUSED;
2937 int do_obj ATTRIBUTE_UNUSED;
2939 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2947 len = strlen (name);
2949 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2950 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2951 if (do_obj && len > 2
2952 && name[len - 2] == '.'
2953 && name[len - 1] == 'o')
2955 obstack_grow (&obstack, name, len - 2);
2956 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
2957 name = obstack_finish (&obstack);
2961 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2962 /* If there is no filetype, make it the executable suffix (which includes
2963 the "."). But don't get confused if we have just "-o". */
2964 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2967 for (i = len - 1; i >= 0; i--)
2968 if (IS_DIR_SEPARATOR (name[i]))
2971 for (i++; i < len; i++)
2975 obstack_grow (&obstack, name, len);
2976 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
2977 strlen (TARGET_EXECUTABLE_SUFFIX));
2978 name = obstack_finish (&obstack);
2985 /* Display the command line switches accepted by gcc. */
2989 printf (_("Usage: %s [options] file...\n"), programname);
2990 fputs (_("Options:\n"), stdout);
2992 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2993 fputs (_(" --help Display this information\n"), stdout);
2994 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2996 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2997 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2998 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2999 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3000 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3001 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3002 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3003 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3004 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3006 -print-multi-lib Display the mapping between command line options and\n\
3007 multiple library search directories\n"), stdout);
3008 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3009 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3010 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3011 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3012 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3013 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3014 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3015 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
3016 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3017 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3018 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3019 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3020 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3021 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3022 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3023 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3024 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3026 -x <language> Specify the language of the following input files\n\
3027 Permissable languages include: c c++ assembler none\n\
3028 'none' means revert to the default behaviour of\n\
3029 guessing the language based on the file's extension\n\
3033 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3034 passed on to the various sub-processes invoked by %s. In order to pass\n\
3035 other options on to these processes the -W<letter> options must be used.\n\
3038 /* The rest of the options are displayed by invocations of the various
3043 add_preprocessor_option (option, len)
3047 n_preprocessor_options++;
3049 if (! preprocessor_options)
3050 preprocessor_options
3051 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
3053 preprocessor_options
3054 = (char **) xrealloc (preprocessor_options,
3055 n_preprocessor_options * sizeof (char *));
3057 preprocessor_options [n_preprocessor_options - 1] =
3058 save_string (option, len);
3062 add_assembler_option (option, len)
3066 n_assembler_options++;
3068 if (! assembler_options)
3070 = (char **) xmalloc (n_assembler_options * sizeof (char *));
3073 = (char **) xrealloc (assembler_options,
3074 n_assembler_options * sizeof (char *));
3076 assembler_options [n_assembler_options - 1] = save_string (option, len);
3080 add_linker_option (option, len)
3086 if (! linker_options)
3088 = (char **) xmalloc (n_linker_options * sizeof (char *));
3091 = (char **) xrealloc (linker_options,
3092 n_linker_options * sizeof (char *));
3094 linker_options [n_linker_options - 1] = save_string (option, len);
3097 /* Create the vector `switches' and its contents.
3098 Store its length in `n_switches'. */
3101 process_command (argc, argv)
3103 const char *const *argv;
3108 const char *spec_lang = 0;
3109 int last_language_n_infiles;
3112 int lang_n_infiles = 0;
3113 #ifdef MODIFY_TARGET_NAME
3114 int is_modify_target_name;
3118 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3122 added_libraries = 0;
3124 /* Figure compiler version from version string. */
3126 compiler_version = temp1 = xstrdup (version_string);
3128 for (; *temp1; ++temp1)
3137 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3138 see if we can create it from the pathname specified in argv[0]. */
3141 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3142 if (!gcc_exec_prefix)
3144 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3145 standard_exec_prefix);
3146 if (gcc_exec_prefix)
3147 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3151 if (gcc_exec_prefix)
3153 int len = strlen (gcc_exec_prefix);
3155 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
3156 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3158 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
3159 if (IS_DIR_SEPARATOR (*temp)
3160 && strncmp (temp + 1, "lib", 3) == 0
3161 && IS_DIR_SEPARATOR (temp[4])
3162 && strncmp (temp + 5, "gcc-lib", 7) == 0)
3163 len -= sizeof ("/lib/gcc-lib/") - 1;
3166 set_std_prefix (gcc_exec_prefix, len);
3167 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
3168 PREFIX_PRIORITY_LAST, 0, NULL);
3169 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3170 PREFIX_PRIORITY_LAST, 0, NULL);
3173 /* COMPILER_PATH and LIBRARY_PATH have values
3174 that are lists of directory names with colons. */
3176 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
3179 const char *startp, *endp;
3180 char *nstore = (char *) alloca (strlen (temp) + 3);
3182 startp = endp = temp;
3185 if (*endp == PATH_SEPARATOR || *endp == 0)
3187 strncpy (nstore, startp, endp - startp);
3189 strcpy (nstore, concat (".", dir_separator_str, NULL));
3190 else if (!IS_DIR_SEPARATOR (endp[-1]))
3192 nstore[endp - startp] = DIR_SEPARATOR;
3193 nstore[endp - startp + 1] = 0;
3196 nstore[endp - startp] = 0;
3197 add_prefix (&exec_prefixes, nstore, 0,
3198 PREFIX_PRIORITY_LAST, 0, NULL);
3199 add_prefix (&include_prefixes,
3200 concat (nstore, "include", NULL),
3201 0, PREFIX_PRIORITY_LAST, 0, NULL);
3204 endp = startp = endp + 1;
3211 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
3212 if (temp && *cross_compile == '0')
3214 const char *startp, *endp;
3215 char *nstore = (char *) alloca (strlen (temp) + 3);
3217 startp = endp = temp;
3220 if (*endp == PATH_SEPARATOR || *endp == 0)
3222 strncpy (nstore, startp, endp - startp);
3224 strcpy (nstore, concat (".", dir_separator_str, NULL));
3225 else if (!IS_DIR_SEPARATOR (endp[-1]))
3227 nstore[endp - startp] = DIR_SEPARATOR;
3228 nstore[endp - startp + 1] = 0;
3231 nstore[endp - startp] = 0;
3232 add_prefix (&startfile_prefixes, nstore, NULL,
3233 PREFIX_PRIORITY_LAST, 0, NULL);
3236 endp = startp = endp + 1;
3243 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3244 GET_ENV_PATH_LIST (temp, "LPATH");
3245 if (temp && *cross_compile == '0')
3247 const char *startp, *endp;
3248 char *nstore = (char *) alloca (strlen (temp) + 3);
3250 startp = endp = temp;
3253 if (*endp == PATH_SEPARATOR || *endp == 0)
3255 strncpy (nstore, startp, endp - startp);
3257 strcpy (nstore, concat (".", dir_separator_str, NULL));
3258 else if (!IS_DIR_SEPARATOR (endp[-1]))
3260 nstore[endp - startp] = DIR_SEPARATOR;
3261 nstore[endp - startp + 1] = 0;
3264 nstore[endp - startp] = 0;
3265 add_prefix (&startfile_prefixes, nstore, NULL,
3266 PREFIX_PRIORITY_LAST, 0, NULL);
3269 endp = startp = endp + 1;
3276 /* Convert new-style -- options to old-style. */
3277 translate_options (&argc, &argv);
3279 /* Do language-specific adjustment/addition of flags. */
3280 lang_specific_driver (&argc, &argv, &added_libraries);
3282 /* Scan argv twice. Here, the first time, just count how many switches
3283 there will be in their vector, and how many input files in theirs.
3284 Also parse any switches that determine the configuration name, such as -b.
3285 Here we also parse the switches that cc itself uses (e.g. -v). */
3287 for (i = 1; i < argc; i++)
3289 if (! strcmp (argv[i], "-dumpspecs"))
3291 struct spec_list *sl;
3293 for (sl = specs; sl; sl = sl->next)
3294 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3295 if (link_command_spec)
3296 printf ("*link_command:\n%s\n\n", link_command_spec);
3299 else if (! strcmp (argv[i], "-dumpversion"))
3301 printf ("%s\n", spec_version);
3304 else if (! strcmp (argv[i], "-dumpmachine"))
3306 printf ("%s\n", spec_machine);
3309 else if (strcmp (argv[i], "-fhelp") == 0)
3311 /* translate_options () has turned --help into -fhelp. */
3312 print_help_list = 1;
3314 /* We will be passing a dummy file on to the sub-processes. */
3318 /* CPP driver cannot obtain switch from cc1_options. */
3320 add_preprocessor_option ("--help", 6);
3321 add_assembler_option ("--help", 6);
3322 add_linker_option ("--help", 6);
3324 else if (strcmp (argv[i], "-ftarget-help") == 0)
3326 /* translate_options() has turned --target-help into -ftarget-help. */
3327 target_help_flag = 1;
3329 /* We will be passing a dummy file on to the sub-processes. */
3333 /* CPP driver cannot obtain switch from cc1_options. */
3335 add_preprocessor_option ("--target-help", 13);
3336 add_assembler_option ("--target-help", 13);
3337 add_linker_option ("--target-help", 13);
3339 else if (! strcmp (argv[i], "-pass-exit-codes"))
3341 pass_exit_codes = 1;
3344 else if (! strcmp (argv[i], "-print-search-dirs"))
3345 print_search_dirs = 1;
3346 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3347 print_file_name = "libgcc.a";
3348 else if (! strncmp (argv[i], "-print-file-name=", 17))
3349 print_file_name = argv[i] + 17;
3350 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3351 print_prog_name = argv[i] + 17;
3352 else if (! strcmp (argv[i], "-print-multi-lib"))
3353 print_multi_lib = 1;
3354 else if (! strcmp (argv[i], "-print-multi-directory"))
3355 print_multi_directory = 1;
3356 else if (! strncmp (argv[i], "-Wa,", 4))
3359 /* Pass the rest of this option to the assembler. */
3361 /* Split the argument at commas. */
3363 for (j = 4; argv[i][j]; j++)
3364 if (argv[i][j] == ',')
3366 add_assembler_option (argv[i] + prev, j - prev);
3370 /* Record the part after the last comma. */
3371 add_assembler_option (argv[i] + prev, j - prev);
3373 else if (! strncmp (argv[i], "-Wp,", 4))
3376 /* Pass the rest of this option to the preprocessor. */
3378 /* Split the argument at commas. */
3380 for (j = 4; argv[i][j]; j++)
3381 if (argv[i][j] == ',')
3383 add_preprocessor_option (argv[i] + prev, j - prev);
3387 /* Record the part after the last comma. */
3388 add_preprocessor_option (argv[i] + prev, j - prev);
3390 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3391 /* The +e options to the C++ front-end. */
3393 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3396 /* Split the argument at commas. */
3397 for (j = 3; argv[i][j]; j++)
3398 n_infiles += (argv[i][j] == ',');
3400 else if (strcmp (argv[i], "-Xlinker") == 0)
3403 fatal ("argument to `-Xlinker' is missing");
3408 else if (strcmp (argv[i], "-l") == 0)
3411 fatal ("argument to `-l' is missing");
3416 else if (strncmp (argv[i], "-l", 2) == 0)
3418 else if (strcmp (argv[i], "-save-temps") == 0)
3420 save_temps_flag = 1;
3423 else if (strcmp (argv[i], "-specs") == 0)
3425 struct user_specs *user = (struct user_specs *)
3426 xmalloc (sizeof (struct user_specs));
3428 fatal ("argument to `-specs' is missing");
3430 user->next = (struct user_specs *) 0;
3431 user->filename = argv[i];
3432 if (user_specs_tail)
3433 user_specs_tail->next = user;
3435 user_specs_head = user;
3436 user_specs_tail = user;
3438 else if (strncmp (argv[i], "-specs=", 7) == 0)
3440 struct user_specs *user = (struct user_specs *)
3441 xmalloc (sizeof (struct user_specs));
3442 if (strlen (argv[i]) == 7)
3443 fatal ("argument to `-specs=' is missing");
3445 user->next = (struct user_specs *) 0;
3446 user->filename = argv[i] + 7;
3447 if (user_specs_tail)
3448 user_specs_tail->next = user;
3450 user_specs_head = user;
3451 user_specs_tail = user;
3453 else if (strcmp (argv[i], "-time") == 0)
3455 else if (argv[i][0] == '-' && argv[i][1] != 0)
3457 const char *p = &argv[i][1];
3464 if (p[1] == 0 && i + 1 == argc)
3465 fatal ("argument to `-b' is missing");
3467 spec_machine = argv[++i];
3469 spec_machine = p + 1;
3471 warn_std_ptr = &warn_std;
3479 if (p[1] == 0 && i + 1 == argc)
3480 fatal ("argument to `-B' is missing");
3486 len = strlen (value);
3488 /* Catch the case where the user has forgotten to append a
3489 directory separator to the path. Note, they may be using
3490 -B to add an executable name prefix, eg "i386-elf-", in
3491 order to distinguish between multiple installations of
3492 GCC in the same directory. Hence we must check to see
3493 if appending a directory separator actually makes a
3494 valid directory name. */
3495 if (! IS_DIR_SEPARATOR (value [len - 1])
3496 && is_directory (value, "", 0))
3498 char *tmp = xmalloc (len + 2);
3499 strcpy (tmp, value);
3500 tmp[len] = DIR_SEPARATOR;
3505 /* As a kludge, if the arg is "[foo/]stageN/", just
3506 add "[foo/]include" to the include prefix. */
3509 && (IS_DIR_SEPARATOR (value[len - 8]))))
3510 && strncmp (value + len - 7, "stage", 5) == 0
3511 && ISDIGIT (value[len - 2])
3512 && (IS_DIR_SEPARATOR (value[len - 1])))
3515 add_prefix (&include_prefixes, "include", NULL,
3516 PREFIX_PRIORITY_B_OPT, 0, NULL);
3519 char * string = xmalloc (len + 1);
3521 strncpy (string, value, len - 7);
3522 strcpy (string + len - 7, "include");
3523 add_prefix (&include_prefixes, string, NULL,
3524 PREFIX_PRIORITY_B_OPT, 0, NULL);
3528 add_prefix (&exec_prefixes, value, NULL,
3529 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3530 add_prefix (&startfile_prefixes, value, NULL,
3531 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3532 add_prefix (&include_prefixes, concat (value, "include", NULL),
3533 NULL, PREFIX_PRIORITY_B_OPT, 0, NULL);
3538 case 'v': /* Print our subcommands and print versions. */
3540 /* If they do anything other than exactly `-v', don't set
3541 verbose_flag; rather, continue on to give the error. */
3549 if (p[1] == 0 && i + 1 == argc)
3550 fatal ("argument to `-V' is missing");
3552 spec_version = argv[++i];
3554 spec_version = p + 1;
3555 compiler_version = spec_version;
3556 warn_std_ptr = &warn_std;
3558 /* Validate the version number. Use the same checks
3559 done when inserting it into a spec.
3561 The format of the version string is
3562 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3564 const char *v = compiler_version;
3566 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3567 while (! ISDIGIT (*v))
3570 if (v > compiler_version && v[-1] != '-')
3571 fatal ("invalid version number format");
3573 /* Set V after the first period. */
3574 while (ISDIGIT (*v))
3578 fatal ("invalid version number format");
3581 while (ISDIGIT (*v))
3584 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3585 fatal ("invalid version number format");
3601 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3606 /* Forward scan, just in case -S or -c is specified
3613 if (argv[j][0] == '-')
3615 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3621 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3622 j += skip - (argv[j][2] != 0);
3623 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3630 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3632 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3634 argv[i] = convert_filename (argv[i], ! have_c, 0);
3641 #ifdef MODIFY_TARGET_NAME
3642 is_modify_target_name = 0;
3645 j < sizeof modify_target / sizeof modify_target[0]; j++)
3646 if (! strcmp (argv[i], modify_target[j].sw))
3649 = (char *) xmalloc (strlen (modify_target[j].str)
3650 + strlen (spec_machine));
3653 int made_addition = 0;
3655 is_modify_target_name = 1;
3656 for (p = spec_machine, q = new_name; *p != 0; )
3658 if (modify_target[j].add_del == DELETE
3659 && (! strncmp (q, modify_target[j].str,
3660 strlen (modify_target[j].str))))
3661 p += strlen (modify_target[j].str);
3662 else if (modify_target[j].add_del == ADD
3663 && ! made_addition && *p == '-')
3665 for (r = modify_target[j].str; *r != 0; )
3673 spec_machine = new_name;
3676 if (is_modify_target_name)
3682 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3683 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3684 else if (WORD_SWITCH_TAKES_ARG (p))
3685 i += WORD_SWITCH_TAKES_ARG (p);
3695 if (have_c && have_o && lang_n_infiles > 1)
3696 fatal ("cannot specify -o with -c or -S and multiple compilations");
3698 /* Set up the search paths before we go looking for config files. */
3700 /* These come before the md prefixes so that we will find gcc's subcommands
3701 (such as cpp) rather than those of the host system. */
3702 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3703 as well as trying the machine and the version. */
3705 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3706 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3707 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3708 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3709 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3710 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3713 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3714 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3715 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3716 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3718 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3719 dir_separator_str, NULL);
3721 /* If tooldir is relative, base it on exec_prefixes. A relative
3722 tooldir lets us move the installed tree as a unit.
3724 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3725 directories, so that we can search both the user specified directory
3726 and the standard place. */
3728 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3730 if (gcc_exec_prefix)
3732 char *gcc_exec_tooldir_prefix
3733 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3734 spec_version, dir_separator_str, tooldir_prefix, NULL);
3736 add_prefix (&exec_prefixes,
3737 concat (gcc_exec_tooldir_prefix, "bin",
3738 dir_separator_str, NULL),
3739 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3740 add_prefix (&startfile_prefixes,
3741 concat (gcc_exec_tooldir_prefix, "lib",
3742 dir_separator_str, NULL),
3743 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3746 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3747 dir_separator_str, spec_version,
3748 dir_separator_str, tooldir_prefix, NULL);
3751 add_prefix (&exec_prefixes,
3752 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3753 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3754 add_prefix (&startfile_prefixes,
3755 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3756 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3758 /* More prefixes are enabled in main, after we read the specs file
3759 and determine whether this is cross-compilation or not. */
3761 /* Then create the space for the vectors and scan again. */
3763 switches = ((struct switchstr *)
3764 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3765 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3768 last_language_n_infiles = -1;
3770 /* This, time, copy the text of each switch and store a pointer
3771 to the copy in the vector of switches.
3772 Store all the infiles in their vector. */
3774 for (i = 1; i < argc; i++)
3776 /* Just skip the switches that were handled by the preceding loop. */
3777 #ifdef MODIFY_TARGET_NAME
3778 is_modify_target_name = 0;
3780 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3781 if (! strcmp (argv[i], modify_target[j].sw))
3782 is_modify_target_name = 1;
3784 if (is_modify_target_name)
3788 if (! strncmp (argv[i], "-Wa,", 4))
3790 else if (! strncmp (argv[i], "-Wp,", 4))
3792 else if (! strcmp (argv[i], "-pass-exit-codes"))
3794 else if (! strcmp (argv[i], "-print-search-dirs"))
3796 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3798 else if (! strncmp (argv[i], "-print-file-name=", 17))
3800 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3802 else if (! strcmp (argv[i], "-print-multi-lib"))
3804 else if (! strcmp (argv[i], "-print-multi-directory"))
3806 else if (! strcmp (argv[i], "-ftarget-help"))
3808 else if (! strcmp (argv[i], "-fhelp"))
3810 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3812 /* Compensate for the +e options to the C++ front-end;
3813 they're there simply for cfront call-compatibility. We do
3814 some magic in default_compilers to pass them down properly.
3815 Note we deliberately start at the `+' here, to avoid passing
3816 -e0 or -e1 down into the linker. */
3817 switches[n_switches].part1 = &argv[i][0];
3818 switches[n_switches].args = 0;
3819 switches[n_switches].live_cond = SWITCH_OK;
3820 switches[n_switches].validated = 0;
3823 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3826 /* Split the argument at commas. */
3828 for (j = 4; argv[i][j]; j++)
3829 if (argv[i][j] == ',')
3831 infiles[n_infiles].language = "*";
3832 infiles[n_infiles++].name
3833 = save_string (argv[i] + prev, j - prev);
3836 /* Record the part after the last comma. */
3837 infiles[n_infiles].language = "*";
3838 infiles[n_infiles++].name = argv[i] + prev;
3840 else if (strcmp (argv[i], "-Xlinker") == 0)
3842 infiles[n_infiles].language = "*";
3843 infiles[n_infiles++].name = argv[++i];
3845 else if (strcmp (argv[i], "-l") == 0)
3846 { /* POSIX allows separation of -l and the lib arg;
3847 canonicalize by concatenating -l with its arg */
3848 infiles[n_infiles].language = "*";
3849 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
3851 else if (strncmp (argv[i], "-l", 2) == 0)
3853 infiles[n_infiles].language = "*";
3854 infiles[n_infiles++].name = argv[i];
3856 else if (strcmp (argv[i], "-specs") == 0)
3858 else if (strncmp (argv[i], "-specs=", 7) == 0)
3860 else if (strcmp (argv[i], "-time") == 0)
3862 else if ((save_temps_flag || report_times)
3863 && strcmp (argv[i], "-pipe") == 0)
3865 /* -save-temps overrides -pipe, so that temp files are produced */
3866 if (save_temps_flag)
3867 error ("warning: -pipe ignored because -save-temps specified");
3868 /* -time overrides -pipe because we can't get correct stats when
3869 multiple children are running at once. */
3870 else if (report_times)
3871 error ("warning: -pipe ignored because -time specified");
3873 else if (argv[i][0] == '-' && argv[i][1] != 0)
3875 const char *p = &argv[i][1];
3880 if (p[1] == 0 && i + 1 == argc)
3881 fatal ("argument to `-x' is missing");
3883 spec_lang = argv[++i];
3886 if (! strcmp (spec_lang, "none"))
3887 /* Suppress the warning if -xnone comes after the last input
3888 file, because alternate command interfaces like g++ might
3889 find it useful to place -xnone after each input file. */
3892 last_language_n_infiles = n_infiles;
3895 switches[n_switches].part1 = p;
3896 /* Deal with option arguments in separate argv elements. */
3897 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3898 || WORD_SWITCH_TAKES_ARG (p))
3901 int n_args = WORD_SWITCH_TAKES_ARG (p);
3905 /* Count only the option arguments in separate argv elements. */
3906 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3908 if (i + n_args >= argc)
3909 fatal ("argument to `-%s' is missing", p);
3910 switches[n_switches].args
3911 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3913 switches[n_switches].args[j++] = argv[++i];
3914 /* Null-terminate the vector. */
3915 switches[n_switches].args[j] = 0;
3917 else if (strchr (switches_need_spaces, c))
3919 /* On some systems, ld cannot handle some options without
3920 a space. So split the option from its argument. */
3921 char *part1 = (char *) xmalloc (2);
3925 switches[n_switches].part1 = part1;
3926 switches[n_switches].args
3927 = (const char **) xmalloc (2 * sizeof (const char *));
3928 switches[n_switches].args[0] = xstrdup (p+1);
3929 switches[n_switches].args[1] = 0;
3932 switches[n_switches].args = 0;
3934 switches[n_switches].live_cond = SWITCH_OK;
3935 switches[n_switches].validated = 0;
3936 switches[n_switches].ordering = 0;
3937 /* These are always valid, since gcc.c itself understands it. */
3938 if (!strcmp (p, "save-temps")
3939 || !strcmp (p, "static-libgcc")
3940 || !strcmp (p, "shared-libgcc"))
3941 switches[n_switches].validated = 1;
3944 char ch = switches[n_switches].part1[0];
3945 if (ch == 'V' || ch == 'b' || ch == 'B')
3946 switches[n_switches].validated = 1;
3952 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3953 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
3956 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3958 perror_with_name (argv[i]);
3963 infiles[n_infiles].language = spec_lang;
3964 infiles[n_infiles++].name = argv[i];
3969 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3970 error ("warning: `-x %s' after last input file has no effect", spec_lang);
3972 /* Ensure we only invoke each subprocess once. */
3973 if (target_help_flag || print_help_list)
3977 /* Create a dummy input file, so that we can pass --target-help on to
3978 the various sub-processes. */
3979 infiles[0].language = "c";
3980 infiles[0].name = "help-dummy";
3982 if (target_help_flag)
3984 switches[n_switches].part1 = "--target-help";
3985 switches[n_switches].args = 0;
3986 switches[n_switches].live_cond = SWITCH_OK;
3987 switches[n_switches].validated = 0;
3992 if (print_help_list)
3994 switches[n_switches].part1 = "--help";
3995 switches[n_switches].args = 0;
3996 switches[n_switches].live_cond = SWITCH_OK;
3997 switches[n_switches].validated = 0;
4003 switches[n_switches].part1 = 0;
4004 infiles[n_infiles].name = 0;
4007 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
4008 and place that in the environment. */
4011 set_collect_gcc_options ()
4016 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4018 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4019 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4022 for (i = 0; (int) i < n_switches; i++)
4024 const char *const *args;
4027 obstack_grow (&collect_obstack, " ", 1);
4031 /* Ignore elided switches. */
4032 if (switches[i].live_cond == SWITCH_IGNORE)
4035 obstack_grow (&collect_obstack, "'-", 2);
4036 q = switches[i].part1;
4037 while ((p = strchr (q, '\'')))
4039 obstack_grow (&collect_obstack, q, p - q);
4040 obstack_grow (&collect_obstack, "'\\''", 4);
4043 obstack_grow (&collect_obstack, q, strlen (q));
4044 obstack_grow (&collect_obstack, "'", 1);
4046 for (args = switches[i].args; args && *args; args++)
4048 obstack_grow (&collect_obstack, " '", 2);
4050 while ((p = strchr (q, '\'')))
4052 obstack_grow (&collect_obstack, q, p - q);
4053 obstack_grow (&collect_obstack, "'\\''", 4);
4056 obstack_grow (&collect_obstack, q, strlen (q));
4057 obstack_grow (&collect_obstack, "'", 1);
4060 obstack_grow (&collect_obstack, "\0", 1);
4061 putenv (obstack_finish (&collect_obstack));
4064 /* Process a spec string, accumulating and running commands. */
4066 /* These variables describe the input file name.
4067 input_file_number is the index on outfiles of this file,
4068 so that the output file name can be stored for later use by %o.
4069 input_basename is the start of the part of the input file
4070 sans all directory names, and basename_length is the number
4071 of characters starting there excluding the suffix .c or whatever. */
4073 const char *input_filename;
4074 static int input_file_number;
4075 size_t input_filename_length;
4076 static int basename_length;
4077 static int suffixed_basename_length;
4078 static const char *input_basename;
4079 static const char *input_suffix;
4081 /* The compiler used to process the current input file. */
4082 static struct compiler *input_file_compiler;
4084 /* These are variables used within do_spec and do_spec_1. */
4086 /* Nonzero if an arg has been started and not yet terminated
4087 (with space, tab or newline). */
4088 static int arg_going;
4090 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4091 is a temporary file name. */
4092 static int delete_this_arg;
4094 /* Nonzero means %w has been seen; the next arg to be terminated
4095 is the output file name of this compilation. */
4096 static int this_is_output_file;
4098 /* Nonzero means %s has been seen; the next arg to be terminated
4099 is the name of a library file and we should try the standard
4100 search dirs for it. */
4101 static int this_is_library_file;
4103 /* Nonzero means that the input of this command is coming from a pipe. */
4104 static int input_from_pipe;
4106 /* Nonnull means substitute this for any suffix when outputting a switches
4108 static const char *suffix_subst;
4110 /* Process the spec SPEC and run the commands specified therein.
4111 Returns 0 if the spec is successfully processed; -1 if failed. */
4121 delete_this_arg = 0;
4122 this_is_output_file = 0;
4123 this_is_library_file = 0;
4124 input_from_pipe = 0;
4125 suffix_subst = NULL;
4127 value = do_spec_1 (spec, 0, NULL);
4129 /* Force out any unfinished command.
4130 If -pipe, this forces out the last command if it ended in `|'. */
4133 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4136 set_collect_gcc_options ();
4138 if (argbuf_index > 0)
4145 /* Process the sub-spec SPEC as a portion of a larger spec.
4146 This is like processing a whole spec except that we do
4147 not initialize at the beginning and we do not supply a
4148 newline by default at the end.
4149 INSWITCH nonzero means don't process %-sequences in SPEC;
4150 in this case, % is treated as an ordinary character.
4151 This is used while substituting switches.
4152 INSWITCH nonzero also causes SPC not to terminate an argument.
4154 Value is zero unless a line was finished
4155 and the command on that line reported an error. */
4158 do_spec_1 (spec, inswitch, soft_matched_part)
4161 const char *soft_matched_part;
4163 const char *p = spec;
4170 /* If substituting a switch, treat all chars like letters.
4171 Otherwise, NL, SPC, TAB and % are special. */
4172 switch (inswitch ? 'a' : c)
4175 /* End of line: finish any pending argument,
4176 then run the pending command if one has been started. */
4179 obstack_1grow (&obstack, 0);
4180 string = obstack_finish (&obstack);
4181 if (this_is_library_file)
4182 string = find_file (string);
4183 store_arg (string, delete_this_arg, this_is_output_file);
4184 if (this_is_output_file)
4185 outfiles[input_file_number] = string;
4189 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4191 for (i = 0; i < n_switches; i++)
4192 if (!strcmp (switches[i].part1, "pipe"))
4195 /* A `|' before the newline means use a pipe here,
4196 but only if -pipe was specified.
4197 Otherwise, execute now and don't pass the `|' as an arg. */
4200 input_from_pipe = 1;
4201 switches[i].validated = 1;
4208 set_collect_gcc_options ();
4210 if (argbuf_index > 0)
4216 /* Reinitialize for a new command, and for a new argument. */
4219 delete_this_arg = 0;
4220 this_is_output_file = 0;
4221 this_is_library_file = 0;
4222 input_from_pipe = 0;
4226 /* End any pending argument. */
4229 obstack_1grow (&obstack, 0);
4230 string = obstack_finish (&obstack);
4231 if (this_is_library_file)
4232 string = find_file (string);
4233 store_arg (string, delete_this_arg, this_is_output_file);
4234 if (this_is_output_file)
4235 outfiles[input_file_number] = string;
4239 obstack_1grow (&obstack, c);
4245 /* Space or tab ends an argument if one is pending. */
4248 obstack_1grow (&obstack, 0);
4249 string = obstack_finish (&obstack);
4250 if (this_is_library_file)
4251 string = find_file (string);
4252 store_arg (string, delete_this_arg, this_is_output_file);
4253 if (this_is_output_file)
4254 outfiles[input_file_number] = string;
4256 /* Reinitialize for a new argument. */
4258 delete_this_arg = 0;
4259 this_is_output_file = 0;
4260 this_is_library_file = 0;
4267 fatal ("invalid specification! Bug in cc");
4270 obstack_grow (&obstack, input_basename, basename_length);
4275 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4280 delete_this_arg = 2;
4283 /* Dump out the directories specified with LIBRARY_PATH,
4284 followed by the absolute directories
4285 that we search for startfiles. */
4288 struct prefix_list *pl = startfile_prefixes.plist;
4289 size_t bufsize = 100;
4290 char *buffer = (char *) xmalloc (bufsize);
4293 for (; pl; pl = pl->next)
4295 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4296 /* Used on systems which record the specified -L dirs
4297 and use them to search for dynamic linking. */
4298 /* Relative directories always come from -B,
4299 and it is better not to use them for searching
4300 at run time. In particular, stage1 loses. */
4301 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
4304 /* Try subdirectory if there is one. */
4305 if (multilib_dir != NULL)
4309 if (strlen (pl->prefix) + strlen (machine_suffix)
4311 bufsize = (strlen (pl->prefix)
4312 + strlen (machine_suffix)) * 2 + 1;
4313 buffer = (char *) xrealloc (buffer, bufsize);
4314 strcpy (buffer, pl->prefix);
4315 strcat (buffer, machine_suffix);
4316 if (is_directory (buffer, multilib_dir, 1))
4318 do_spec_1 ("-L", 0, NULL);
4319 #ifdef SPACE_AFTER_L_OPTION
4320 do_spec_1 (" ", 0, NULL);
4322 do_spec_1 (buffer, 1, NULL);
4323 do_spec_1 (multilib_dir, 1, NULL);
4324 /* Make this a separate argument. */
4325 do_spec_1 (" ", 0, NULL);
4328 if (!pl->require_machine_suffix)
4330 if (is_directory (pl->prefix, multilib_dir, 1))
4332 do_spec_1 ("-L", 0, NULL);
4333 #ifdef SPACE_AFTER_L_OPTION
4334 do_spec_1 (" ", 0, NULL);
4336 do_spec_1 (pl->prefix, 1, NULL);
4337 do_spec_1 (multilib_dir, 1, NULL);
4338 /* Make this a separate argument. */
4339 do_spec_1 (" ", 0, NULL);
4345 if (is_directory (pl->prefix, machine_suffix, 1))
4347 do_spec_1 ("-L", 0, NULL);
4348 #ifdef SPACE_AFTER_L_OPTION
4349 do_spec_1 (" ", 0, NULL);
4351 do_spec_1 (pl->prefix, 1, NULL);
4352 /* Remove slash from machine_suffix. */
4353 if (strlen (machine_suffix) >= bufsize)
4354 bufsize = strlen (machine_suffix) * 2 + 1;
4355 buffer = (char *) xrealloc (buffer, bufsize);
4356 strcpy (buffer, machine_suffix);
4357 idx = strlen (buffer);
4358 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4359 buffer[idx - 1] = 0;
4360 do_spec_1 (buffer, 1, NULL);
4361 /* Make this a separate argument. */
4362 do_spec_1 (" ", 0, NULL);
4365 if (!pl->require_machine_suffix)
4367 if (is_directory (pl->prefix, "", 1))
4369 do_spec_1 ("-L", 0, NULL);
4370 #ifdef SPACE_AFTER_L_OPTION
4371 do_spec_1 (" ", 0, NULL);
4373 /* Remove slash from pl->prefix. */
4374 if (strlen (pl->prefix) >= bufsize)
4375 bufsize = strlen (pl->prefix) * 2 + 1;
4376 buffer = (char *) xrealloc (buffer, bufsize);
4377 strcpy (buffer, pl->prefix);
4378 idx = strlen (buffer);
4379 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4380 buffer[idx - 1] = 0;
4381 do_spec_1 (buffer, 1, NULL);
4382 /* Make this a separate argument. */
4383 do_spec_1 (" ", 0, NULL);
4392 /* %efoo means report an error with `foo' as error message
4393 and don't execute any more commands for this file. */
4397 while (*p != 0 && *p != '\n')
4399 buf = (char *) alloca (p - q + 1);
4400 strncpy (buf, q, p - q);
4407 /* %nfoo means report an notice with `foo' on stderr. */
4411 while (*p != 0 && *p != '\n')
4413 buf = (char *) alloca (p - q + 1);
4414 strncpy (buf, q, p - q);
4416 notice ("%s\n", buf);
4426 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4427 and it is not a directory, and it is writable, use it.
4428 Otherwise, fall through and treat this like any other
4431 if ((!save_temps_flag)
4432 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4433 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4435 obstack_grow (&obstack, HOST_BIT_BUCKET,
4436 strlen (HOST_BIT_BUCKET));
4437 delete_this_arg = 0;
4445 if (save_temps_flag)
4447 obstack_grow (&obstack, input_basename, basename_length);
4448 delete_this_arg = 0;
4452 struct temp_name *t;
4454 const char *suffix = p;
4455 char *saved_suffix = NULL;
4457 while (*p == '.' || ISALPHA ((unsigned char) *p))
4459 suffix_length = p - suffix;
4460 if (p[0] == '%' && p[1] == 'O')
4463 /* We don't support extra suffix characters after %O. */
4464 if (*p == '.' || ISALPHA ((unsigned char) *p))
4466 if (suffix_length == 0)
4467 suffix = TARGET_OBJECT_SUFFIX;
4471 = (char *) xmalloc (suffix_length
4472 + strlen (TARGET_OBJECT_SUFFIX));
4473 strncpy (saved_suffix, suffix, suffix_length);
4474 strcpy (saved_suffix + suffix_length,
4475 TARGET_OBJECT_SUFFIX);
4477 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4480 /* See if we already have an association of %g/%u/%U and
4482 for (t = temp_names; t; t = t->next)
4483 if (t->length == suffix_length
4484 && strncmp (t->suffix, suffix, suffix_length) == 0
4485 && t->unique == (c != 'g'))
4488 /* Make a new association if needed. %u and %j
4490 if (t == 0 || c == 'u' || c == 'j')
4494 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4495 t->next = temp_names;
4498 t->length = suffix_length;
4501 t->suffix = saved_suffix;
4502 saved_suffix = NULL;
4505 t->suffix = save_string (suffix, suffix_length);
4506 t->unique = (c != 'g');
4507 temp_filename = make_temp_file (t->suffix);
4508 temp_filename_length = strlen (temp_filename);
4509 t->filename = temp_filename;
4510 t->filename_length = temp_filename_length;
4514 free (saved_suffix);
4516 obstack_grow (&obstack, t->filename, t->filename_length);
4517 delete_this_arg = 1;
4523 obstack_grow (&obstack, input_filename, input_filename_length);
4529 struct prefix_list *pl = include_prefixes.plist;
4531 if (gcc_exec_prefix)
4533 do_spec_1 ("-iprefix", 1, NULL);
4534 /* Make this a separate argument. */
4535 do_spec_1 (" ", 0, NULL);
4536 do_spec_1 (gcc_exec_prefix, 1, NULL);
4537 do_spec_1 (" ", 0, NULL);
4540 for (; pl; pl = pl->next)
4542 do_spec_1 ("-isystem", 1, NULL);
4543 /* Make this a separate argument. */
4544 do_spec_1 (" ", 0, NULL);
4545 do_spec_1 (pl->prefix, 1, NULL);
4546 do_spec_1 (" ", 0, NULL);
4553 int max = n_infiles;
4554 max += lang_specific_extra_outfiles;
4556 for (i = 0; i < max; i++)
4558 store_arg (outfiles[i], 0, 0);
4563 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
4568 this_is_library_file = 1;
4572 this_is_output_file = 1;
4577 int cur_index = argbuf_index;
4578 /* Handle the {...} following the %W. */
4581 p = handle_braces (p + 1);
4584 /* If any args were output, mark the last one for deletion
4586 if (argbuf_index != cur_index)
4587 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4591 /* %x{OPTION} records OPTION for %X to output. */
4597 /* Skip past the option value and make a copy. */
4602 string = save_string (p1 + 1, p - p1 - 2);
4604 /* See if we already recorded this option. */
4605 for (i = 0; i < n_linker_options; i++)
4606 if (! strcmp (string, linker_options[i]))
4612 /* This option is new; add it. */
4613 add_linker_option (string, strlen (string));
4617 /* Dump out the options accumulated previously using %x. */
4619 for (i = 0; i < n_linker_options; i++)
4621 do_spec_1 (linker_options[i], 1, NULL);
4622 /* Make each accumulated option a separate argument. */
4623 do_spec_1 (" ", 0, NULL);
4627 /* Dump out the options accumulated previously using -Wa,. */
4629 for (i = 0; i < n_assembler_options; i++)
4631 do_spec_1 (assembler_options[i], 1, NULL);
4632 /* Make each accumulated option a separate argument. */
4633 do_spec_1 (" ", 0, NULL);
4637 /* Dump out the options accumulated previously using -Wp,. */
4639 for (i = 0; i < n_preprocessor_options; i++)
4641 do_spec_1 (preprocessor_options[i], 1, NULL);
4642 /* Make each accumulated option a separate argument. */
4643 do_spec_1 (" ", 0, NULL);
4647 /* Here are digits and numbers that just process
4648 a certain constant string as a spec. */
4651 value = do_spec_1 (cc1_spec, 0, NULL);
4657 value = do_spec_1 (cc1plus_spec, 0, NULL);
4663 value = do_spec_1 (asm_spec, 0, NULL);
4669 value = do_spec_1 (asm_final_spec, 0, NULL);
4675 value = do_spec_1 (signed_char_spec, 0, NULL);
4682 const char *const spec
4683 = (input_file_compiler->cpp_spec
4684 ? input_file_compiler->cpp_spec
4686 value = do_spec_1 (spec, 0, NULL);
4693 value = do_spec_1 (endfile_spec, 0, NULL);
4699 value = do_spec_1 (link_spec, 0, NULL);
4705 value = do_spec_1 (lib_spec, 0, NULL);
4711 value = do_spec_1 (libgcc_spec, 0, NULL);
4717 if (multilib_dir && strcmp (multilib_dir, ".") != 0)
4723 len = strlen (multilib_dir);
4724 obstack_blank (&obstack, len + 1);
4725 p = obstack_next_free (&obstack) - (len + 1);
4728 for (q = multilib_dir; *q ; ++q, ++p)
4729 *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
4735 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4739 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4743 if (! strncmp (y, "-D", 2))
4744 /* Copy the whole option. */
4745 while (*y && *y != ' ' && *y != '\t')
4747 else if (*y == ' ' || *y == '\t')
4748 /* Copy whitespace to the result. */
4750 /* Don't copy other options. */
4757 value = do_spec_1 (buf, 0, NULL);
4765 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4769 /* Copy all of CPP_PREDEFINES into BUF,
4770 but force them all into the reserved name space if they
4771 aren't already there. The reserved name space is all
4772 identifiers beginning with two underscores or with one
4773 underscore and a capital letter. We do the forcing by
4774 adding up to two underscores to the beginning and end
4775 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4780 if (! strncmp (y, "-D", 2))
4789 && ! ISUPPER ((unsigned char) *(y + 1))))
4791 /* Stick __ at front of macro name. */
4795 /* Arrange to stick __ at the end as well. */
4799 /* Copy the macro name. */
4800 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4813 /* Copy the value given, if any. */
4814 while (*y && *y != ' ' && *y != '\t')
4817 else if (*y == ' ' || *y == '\t')
4818 /* Copy whitespace to the result. */
4820 /* Don't copy -A options */
4826 /* Copy all of CPP_PREDEFINES into BUF,
4827 but put __ after every -D. */
4831 if (! strncmp (y, "-D", 2))
4837 && ! ISUPPER ((unsigned char) *(y + 1))))
4839 /* Stick -D__ at front of macro name. */
4846 /* Copy the macro name. */
4847 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4850 /* Copy the value given, if any. */
4851 while (*y && *y != ' ' && *y != '\t')
4856 /* Do not copy this macro - we have just done it before */
4857 while (*y && *y != ' ' && *y != '\t')
4861 else if (*y == ' ' || *y == '\t')
4862 /* Copy whitespace to the result. */
4864 /* Don't copy -A options. */
4870 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4874 if (! strncmp (y, "-A", 2))
4875 /* Copy the whole option. */
4876 while (*y && *y != ' ' && *y != '\t')
4878 else if (*y == ' ' || *y == '\t')
4879 /* Copy whitespace to the result. */
4881 /* Don't copy other options. */
4888 value = do_spec_1 (buf, 0, NULL);
4895 value = do_spec_1 (startfile_spec, 0, NULL);
4900 /* Here we define characters other than letters and digits. */
4903 p = handle_braces (p);
4909 obstack_1grow (&obstack, '%');
4916 while (p[len] && p[len] != ' ' && p[len] != '%')
4918 suffix_subst = save_string (p - 1, len + 1);
4924 if (soft_matched_part)
4926 do_spec_1 (soft_matched_part, 1, NULL);
4927 do_spec_1 (" ", 0, NULL);
4930 /* Catch the case where a spec string contains something like
4931 '%{foo:%*}'. ie there is no * in the pattern on the left
4932 hand side of the :. */
4933 error ("spec failure: '%%*' has not been initialised by pattern match");
4936 /* Process a string found as the value of a spec given by name.
4937 This feature allows individual machine descriptions
4938 to add and use their own specs.
4939 %[...] modifies -D options the way %P does;
4940 %(...) uses the spec unmodified. */
4942 error ("warning: use of obsolete %%[ operator in specs");
4945 const char *name = p;
4946 struct spec_list *sl;
4949 /* The string after the S/P is the name of a spec that is to be
4951 while (*p && *p != ')' && *p != ']')
4954 /* See if it's in the list. */
4955 for (len = p - name, sl = specs; sl; sl = sl->next)
4956 if (sl->name_len == len && !strncmp (sl->name, name, len))
4958 name = *(sl->ptr_spec);
4960 notice ("Processing spec %c%s%c, which is '%s'\n",
4961 c, sl->name, (c == '(') ? ')' : ']', name);
4970 value = do_spec_1 (name, 0, NULL);
4976 char *x = (char *) alloca (strlen (name) * 2 + 1);
4978 const char *y = name;
4981 /* Copy all of NAME into BUF, but put __ after
4982 every -D and at the end of each arg. */
4985 if (! strncmp (y, "-D", 2))
4996 && (*y == ' ' || *y == '\t' || *y == '='
4997 || *y == '}' || *y == 0))
5010 value = do_spec_1 (buf, 0, NULL);
5016 /* Discard the closing paren or bracket. */
5024 int c1 = *p++; /* Select first or second version number. */
5025 const char *v = compiler_version;
5027 static const char zeroc = '0';
5029 /* The format of the version string is
5030 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5032 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5033 while (! ISDIGIT (*v))
5035 if (v > compiler_version && v[-1] != '-')
5038 /* If desired, advance to second version number. */
5041 /* Set V after the first period. */
5042 while (ISDIGIT (*v))
5049 /* If desired, advance to third version number.
5050 But don't complain if it's not present */
5053 /* Set V after the second period. */
5054 while (ISDIGIT (*v))
5056 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
5062 /* Set Q at the next period or at the end. */
5064 while (ISDIGIT (*q))
5066 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
5070 /* Put that part into the command. */
5071 obstack_grow (&obstack, v, q - v);
5073 /* Default to "0" */
5074 obstack_grow (&obstack, &zeroc, 1);
5080 if (input_from_pipe)
5081 do_spec_1 ("-", 0, NULL);
5085 error ("spec failure: unrecognised spec option '%c'", c);
5091 /* Backslash: treat next character as ordinary. */
5096 /* Ordinary character: put it into the current argument. */
5097 obstack_1grow (&obstack, c);
5101 /* End of string. */
5105 /* Return 0 if we call do_spec_1 and that returns -1. */
5111 const char *filter, *body = NULL, *endbody = NULL;
5113 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5116 int include_blanks = 1;
5117 int elide_switch = 0;
5122 /* A '^' after the open-brace means to not give blanks before args. */
5129 /* A `|' after the open-brace means,
5130 if the test fails, output a single minus sign rather than nothing.
5131 This is used in %{|!pipe:...}. */
5138 /* A `<' after the open-brace means that the switch should be
5139 removed from the command-line. */
5145 negate = suffix = 0;
5148 /* A `!' after the open-brace negates the condition:
5149 succeed if the specified switch is not present. */
5153 /* A `.' after the open-brace means test against the current suffix. */
5162 if (elide_switch && (negate || pipe_p || suffix))
5164 /* It doesn't make sense to mix elision with other flags. We
5165 could fatal() here, but the standard seems to be to abort. */
5171 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
5174 if (*p == '|' && (pipe_p || ordered))
5179 if (*p != '}' && *p != '&')
5195 fatal ("mismatched braces in specs");
5201 body = p, endbody = p + 1;
5206 int found = (input_suffix != 0
5207 && (long) strlen (input_suffix) == (long) (p - filter)
5208 && strncmp (input_suffix, filter, p - filter) == 0);
5214 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL) < 0)
5217 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
5219 /* Substitute all matching switches as separate args. */
5222 for (i = 0; i < n_switches; i++)
5223 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
5224 && check_live_switch (i, p - 1 - filter))
5228 switches[i].live_cond = SWITCH_IGNORE;
5229 switches[i].validated = 1;
5232 ordered = 1, switches[i].ordering = 1;
5237 /* Test for presence of the specified switch. */
5241 /* If name specified ends in *, as in {x*:...},
5242 check for %* and handle that case. */
5243 if (p[-1] == '*' && !negate)
5246 const char *r = body;
5248 /* First see whether we have %*. */
5252 if (*r == '%' && r[1] == '*')
5256 /* If we do, handle that case. */
5259 /* Substitute all matching switches as separate args.
5260 But do this by substituting for %*
5261 in the text that follows the colon. */
5263 unsigned hard_match_len = p - filter - 1;
5264 char *string = save_string (body, endbody - body - 1);
5266 for (i = 0; i < n_switches; i++)
5267 if (!strncmp (switches[i].part1, filter, hard_match_len)
5268 && check_live_switch (i, -1))
5270 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
5271 /* Pass any arguments this switch has. */
5272 give_switch (i, 1, 1);
5273 suffix_subst = NULL;
5276 /* We didn't match. Try again. */
5283 /* If name specified ends in *, as in {x*:...},
5284 check for presence of any switch name starting with x. */
5287 for (i = 0; i < n_switches; i++)
5289 unsigned hard_match_len = p - filter - 1;
5291 if (!strncmp (switches[i].part1, filter, hard_match_len)
5292 && check_live_switch (i, hard_match_len))
5299 /* Otherwise, check for presence of exact name specified. */
5302 for (i = 0; i < n_switches; i++)
5304 if (!strncmp (switches[i].part1, filter, p - filter)
5305 && switches[i].part1[p - filter] == 0
5306 && check_live_switch (i, -1))
5314 /* If it is as desired (present for %{s...}, absent for %{!s...})
5315 then substitute either the switch or the specified
5316 conditional text. */
5317 if (present != negate)
5321 switches[i].live_cond = SWITCH_IGNORE;
5322 switches[i].validated = 1;
5324 else if (ordered || *p == '&')
5325 ordered = 1, switches[i].ordering = 1;
5327 give_switch (i, 0, include_blanks);
5329 /* Even if many alternatives are matched, only output once. */
5334 /* Here if a %{|...} conditional fails: output a minus sign,
5335 which means "standard output" or "standard input". */
5336 do_spec_1 ("-", 0, NULL);
5341 /* We didn't match; try again. */
5348 goto next_ampersand;
5354 /* Doing this set of switches later preserves their command-line
5355 ordering. This is needed for e.g. -U, -D and -A. */
5356 for (i = 0; i < n_switches; i++)
5357 if (switches[i].ordering == 1)
5359 switches[i].ordering = 0;
5360 give_switch (i, 0, include_blanks);
5363 /* Process the spec just once, regardless of match count. */
5366 if (do_spec_1 (save_string (body, endbody - body - 1),
5374 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5375 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5376 spec, or -1 if either exact match or %* is used.
5378 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5379 whose value does not begin with "no-" is obsoleted by the same value
5380 with the "no-", similarly for a switch with the "no-" prefix. */
5383 check_live_switch (switchnum, prefix_length)
5387 const char *name = switches[switchnum].part1;
5390 /* In the common case of {<at-most-one-letter>*}, a negating
5391 switch would always match, so ignore that case. We will just
5392 send the conflicting switches to the compiler phase. */
5393 if (prefix_length >= 0 && prefix_length <= 1)
5396 /* If we already processed this switch and determined if it was
5397 live or not, return our past determination. */
5398 if (switches[switchnum].live_cond != 0)
5399 return switches[switchnum].live_cond > 0;
5401 /* Now search for duplicate in a manner that depends on the name. */
5405 for (i = switchnum + 1; i < n_switches; i++)
5406 if (switches[i].part1[0] == 'O')
5408 switches[switchnum].validated = 1;
5409 switches[switchnum].live_cond = SWITCH_FALSE;
5414 case 'W': case 'f': case 'm':
5415 if (! strncmp (name + 1, "no-", 3))
5417 /* We have Xno-YYY, search for XYYY. */
5418 for (i = switchnum + 1; i < n_switches; i++)
5419 if (switches[i].part1[0] == name[0]
5420 && ! strcmp (&switches[i].part1[1], &name[4]))
5422 switches[switchnum].validated = 1;
5423 switches[switchnum].live_cond = SWITCH_FALSE;
5429 /* We have XYYY, search for Xno-YYY. */
5430 for (i = switchnum + 1; i < n_switches; i++)
5431 if (switches[i].part1[0] == name[0]
5432 && switches[i].part1[1] == 'n'
5433 && switches[i].part1[2] == 'o'
5434 && switches[i].part1[3] == '-'
5435 && !strcmp (&switches[i].part1[4], &name[1]))
5437 switches[switchnum].validated = 1;
5438 switches[switchnum].live_cond = SWITCH_FALSE;
5445 /* Otherwise the switch is live. */
5446 switches[switchnum].live_cond = SWITCH_LIVE;
5450 /* Pass a switch to the current accumulating command
5451 in the same form that we received it.
5452 SWITCHNUM identifies the switch; it is an index into
5453 the vector of switches gcc received, which is `switches'.
5454 This cannot fail since it never finishes a command line.
5456 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5458 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5462 give_switch (switchnum, omit_first_word, include_blanks)
5464 int omit_first_word;
5467 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5470 if (!omit_first_word)
5472 do_spec_1 ("-", 0, NULL);
5473 do_spec_1 (switches[switchnum].part1, 1, NULL);
5476 if (switches[switchnum].args != 0)
5479 for (p = switches[switchnum].args; *p; p++)
5481 const char *arg = *p;
5484 do_spec_1 (" ", 0, NULL);
5487 unsigned length = strlen (arg);
5490 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5491 if (arg[length] == '.')
5493 ((char *)arg)[length] = 0;
5497 do_spec_1 (arg, 1, NULL);
5499 ((char *)arg)[length] = '.';
5500 do_spec_1 (suffix_subst, 1, NULL);
5503 do_spec_1 (arg, 1, NULL);
5507 do_spec_1 (" ", 0, NULL);
5508 switches[switchnum].validated = 1;
5511 /* Search for a file named NAME trying various prefixes including the
5512 user's -B prefix and some standard ones.
5513 Return the absolute file name found. If nothing is found, return NAME. */
5521 /* Try multilib_dir if it is defined. */
5522 if (multilib_dir != NULL)
5524 const char *const try = ACONCAT ((multilib_dir, dir_separator_str, name, NULL));
5526 newname = find_a_file (&startfile_prefixes, try, R_OK);
5528 /* If we don't find it in the multi library dir, then fall
5529 through and look for it in the normal places. */
5530 if (newname != NULL)
5534 newname = find_a_file (&startfile_prefixes, name, R_OK);
5535 return newname ? newname : name;
5538 /* Determine whether a directory exists. If LINKER, return 0 for
5539 certain fixed names not needed by the linker. If not LINKER, it is
5540 only important to return 0 if the host machine has a small ARG_MAX
5544 is_directory (path1, path2, linker)
5549 int len1 = strlen (path1);
5550 int len2 = strlen (path2);
5551 char *path = (char *) alloca (3 + len1 + len2);
5555 #ifndef SMALL_ARG_MAX
5560 /* Construct the path from the two parts. Ensure the string ends with "/.".
5561 The resulting path will be a directory even if the given path is a
5563 memcpy (path, path1, len1);
5564 memcpy (path + len1, path2, len2);
5565 cp = path + len1 + len2;
5566 if (!IS_DIR_SEPARATOR (cp[-1]))
5567 *cp++ = DIR_SEPARATOR;
5571 /* Exclude directories that the linker is known to search. */
5574 && strcmp (path, concat (dir_separator_str, "lib",
5575 dir_separator_str, ".", NULL)) == 0)
5577 && strcmp (path, concat (dir_separator_str, "usr",
5578 dir_separator_str, "lib",
5579 dir_separator_str, ".", NULL)) == 0)))
5582 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5585 /* Set up the various global variables to indicate that we're processing
5586 the input file named FILENAME. */
5589 set_input (filename)
5590 const char *filename;
5594 input_filename = filename;
5595 input_filename_length = strlen (input_filename);
5597 input_basename = input_filename;
5598 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5599 /* Skip drive name so 'x:foo' is handled properly. */
5600 if (input_basename[1] == ':')
5601 input_basename += 2;
5603 for (p = input_basename; *p; p++)
5604 if (IS_DIR_SEPARATOR (*p))
5605 input_basename = p + 1;
5607 /* Find a suffix starting with the last period,
5608 and set basename_length to exclude that suffix. */
5609 basename_length = strlen (input_basename);
5610 suffixed_basename_length = basename_length;
5611 p = input_basename + basename_length;
5612 while (p != input_basename && *p != '.')
5614 if (*p == '.' && p != input_basename)
5616 basename_length = p - input_basename;
5617 input_suffix = p + 1;
5623 /* On fatal signals, delete all the temporary files. */
5626 fatal_error (signum)
5629 signal (signum, SIG_DFL);
5630 delete_failure_queue ();
5631 delete_temp_files ();
5632 /* Get the same signal again, this time not handled,
5633 so its normal effect occurs. */
5634 kill (getpid (), signum);
5637 extern int main PARAMS ((int, const char *const *));
5642 const char *const *argv;
5646 int linker_was_run = 0;
5647 char *explicit_link_files;
5650 struct user_specs *uptr;
5652 p = argv[0] + strlen (argv[0]);
5653 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5657 xmalloc_set_program_name (programname);
5659 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5660 /* Perform host dependent initialization when needed. */
5661 GCC_DRIVER_HOST_INITIALIZATION;
5664 gcc_init_libintl ();
5666 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5667 signal (SIGINT, fatal_error);
5669 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5670 signal (SIGHUP, fatal_error);
5672 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5673 signal (SIGTERM, fatal_error);
5675 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5676 signal (SIGPIPE, fatal_error);
5679 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5680 receive the signal. A different setting is inheritable */
5681 signal (SIGCHLD, SIG_DFL);
5685 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5687 obstack_init (&obstack);
5689 /* Build multilib_select, et. al from the separate lines that make up each
5690 multilib selection. */
5692 const char *const *q = multilib_raw;
5695 obstack_init (&multilib_obstack);
5696 while ((p = *q++) != (char *) 0)
5697 obstack_grow (&multilib_obstack, p, strlen (p));
5699 obstack_1grow (&multilib_obstack, 0);
5700 multilib_select = obstack_finish (&multilib_obstack);
5702 q = multilib_matches_raw;
5703 while ((p = *q++) != (char *) 0)
5704 obstack_grow (&multilib_obstack, p, strlen (p));
5706 obstack_1grow (&multilib_obstack, 0);
5707 multilib_matches = obstack_finish (&multilib_obstack);
5709 q = multilib_exclusions_raw;
5710 while ((p = *q++) != (char *) 0)
5711 obstack_grow (&multilib_obstack, p, strlen (p));
5713 obstack_1grow (&multilib_obstack, 0);
5714 multilib_exclusions = obstack_finish (&multilib_obstack);
5717 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5720 obstack_1grow (&multilib_obstack, ' ');
5721 obstack_grow (&multilib_obstack,
5722 multilib_defaults_raw[i],
5723 strlen (multilib_defaults_raw[i]));
5727 obstack_1grow (&multilib_obstack, 0);
5728 multilib_defaults = obstack_finish (&multilib_obstack);
5731 /* Set up to remember the pathname of gcc and any options
5732 needed for collect. We use argv[0] instead of programname because
5733 we need the complete pathname. */
5734 obstack_init (&collect_obstack);
5735 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5736 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5737 putenv (obstack_finish (&collect_obstack));
5739 #ifdef INIT_ENVIRONMENT
5740 /* Set up any other necessary machine specific environment variables. */
5741 putenv (INIT_ENVIRONMENT);
5744 /* Make a table of what switches there are (switches, n_switches).
5745 Make a table of specified input files (infiles, n_infiles).
5746 Decode switches that are handled locally. */
5748 process_command (argc, argv);
5750 /* Initialize the vector of specs to just the default.
5751 This means one element containing 0s, as a terminator. */
5753 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5754 memcpy ((char *) compilers, (char *) default_compilers,
5755 sizeof default_compilers);
5756 n_compilers = n_default_compilers;
5758 /* Read specs from a file if there is one. */
5760 machine_suffix = concat (spec_machine, dir_separator_str,
5761 spec_version, dir_separator_str, NULL);
5762 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
5764 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5765 /* Read the specs file unless it is a default one. */
5766 if (specs_file != 0 && strcmp (specs_file, "specs"))
5767 read_specs (specs_file, TRUE);
5771 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5772 for any override of as, ld and libraries. */
5773 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5774 + strlen (just_machine_suffix)
5775 + sizeof ("specs"));
5777 strcpy (specs_file, standard_exec_prefix);
5778 strcat (specs_file, just_machine_suffix);
5779 strcat (specs_file, "specs");
5780 if (access (specs_file, R_OK) == 0)
5781 read_specs (specs_file, TRUE);
5783 /* If not cross-compiling, look for startfiles in the standard places. */
5784 if (*cross_compile == '0')
5786 if (*md_exec_prefix)
5788 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5789 PREFIX_PRIORITY_LAST, 0, NULL);
5790 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5791 PREFIX_PRIORITY_LAST, 0, NULL);
5794 if (*md_startfile_prefix)
5795 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5796 PREFIX_PRIORITY_LAST, 0, NULL);
5798 if (*md_startfile_prefix_1)
5799 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5800 PREFIX_PRIORITY_LAST, 0, NULL);
5802 /* If standard_startfile_prefix is relative, base it on
5803 standard_exec_prefix. This lets us move the installed tree
5804 as a unit. If GCC_EXEC_PREFIX is defined, base
5805 standard_startfile_prefix on that as well. */
5806 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5807 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5808 PREFIX_PRIORITY_LAST, 0, NULL);
5811 if (gcc_exec_prefix)
5812 add_prefix (&startfile_prefixes,
5813 concat (gcc_exec_prefix, machine_suffix,
5814 standard_startfile_prefix, NULL),
5815 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5816 add_prefix (&startfile_prefixes,
5817 concat (standard_exec_prefix,
5819 standard_startfile_prefix, NULL),
5820 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5823 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5824 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5825 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5826 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5827 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5828 add_prefix (&startfile_prefixes, "./", NULL,
5829 PREFIX_PRIORITY_LAST, 1, NULL);
5834 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5836 add_prefix (&startfile_prefixes,
5837 concat (gcc_exec_prefix, machine_suffix,
5838 standard_startfile_prefix, NULL),
5839 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5842 /* Process any user specified specs in the order given on the command
5844 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5846 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5847 read_specs (filename ? filename : uptr->filename, FALSE);
5850 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5851 if (gcc_exec_prefix)
5852 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
5853 spec_version, dir_separator_str, NULL);
5855 /* Now we have the specs.
5856 Set the `valid' bits for switches that match anything in any spec. */
5858 validate_all_switches ();
5860 /* Now that we have the switches and the specs, set
5861 the subdirectory based on the options. */
5862 set_multilib_dir ();
5864 /* Warn about any switches that no pass was interested in. */
5866 for (i = 0; (int) i < n_switches; i++)
5867 if (! switches[i].validated)
5868 error ("unrecognized option `-%s'", switches[i].part1);
5870 /* Obey some of the options. */
5872 if (print_search_dirs)
5874 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5875 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5876 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5880 if (print_file_name)
5882 printf ("%s\n", find_file (print_file_name));
5886 if (print_prog_name)
5888 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5889 printf ("%s\n", (newname ? newname : print_prog_name));
5893 if (print_multi_lib)
5895 print_multilib_info ();
5899 if (print_multi_directory)
5901 if (multilib_dir == NULL)
5904 printf ("%s\n", multilib_dir);
5908 if (target_help_flag)
5910 /* Print if any target specific options.*/
5912 /* We do not exit here. Instead we have created a fake input file
5913 called 'target-dummy' which needs to be compiled, and we pass this
5914 on to the various sub-processes, along with the --target-help
5918 if (print_help_list)
5924 printf (_("\nFor bug reporting instructions, please see:\n"));
5925 printf ("%s.\n", GCCBUGURL);
5930 /* We do not exit here. Instead we have created a fake input file
5931 called 'help-dummy' which needs to be compiled, and we pass this
5932 on the various sub-processes, along with the --help switch. */
5940 notice ("Configured with: %s\n", configuration_arguments);
5942 #ifdef THREAD_MODEL_SPEC
5943 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
5944 but there's no point in doing all this processing just to get
5945 thread_model back. */
5946 obstack_init (&obstack);
5947 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
5948 obstack_1grow (&obstack, '\0');
5949 thrmod = obstack_finish (&obstack);
5951 thrmod = thread_model;
5954 notice ("Thread model: %s\n", thrmod);
5956 /* compiler_version is truncated at the first space when initialized
5957 from version string, so truncate version_string at the first space
5958 before comparing. */
5959 for (n = 0; version_string[n]; n++)
5960 if (version_string[n] == ' ')
5963 if (! strncmp (version_string, compiler_version, n)
5964 && compiler_version[n] == 0)
5965 notice ("gcc version %s\n", version_string);
5967 notice ("gcc driver version %s executing gcc version %s\n",
5968 version_string, compiler_version);
5974 if (n_infiles == added_libraries)
5975 fatal ("no input files");
5977 /* Make a place to record the compiler output file names
5978 that correspond to the input files. */
5981 i += lang_specific_extra_outfiles;
5982 outfiles = (const char **) xcalloc (i, sizeof (char *));
5984 /* Record which files were specified explicitly as link input. */
5986 explicit_link_files = xcalloc (1, n_infiles);
5988 for (i = 0; (int) i < n_infiles; i++)
5990 int this_file_error = 0;
5992 /* Tell do_spec what to substitute for %i. */
5994 input_file_number = i;
5995 set_input (infiles[i].name);
5997 /* Use the same thing in %o, unless cp->spec says otherwise. */
5999 outfiles[i] = input_filename;
6001 /* Figure out which compiler from the file's suffix. */
6004 = lookup_compiler (infiles[i].name, input_filename_length,
6005 infiles[i].language);
6007 if (input_file_compiler)
6009 /* Ok, we found an applicable compiler. Run its spec. */
6011 if (input_file_compiler->spec[0] == '#')
6013 error ("%s: %s compiler not installed on this system",
6014 input_filename, &input_file_compiler->spec[1]);
6015 this_file_error = 1;
6019 value = do_spec (input_file_compiler->spec);
6021 this_file_error = 1;
6025 /* If this file's name does not contain a recognized suffix,
6026 record it as explicit linker input. */
6029 explicit_link_files[i] = 1;
6031 /* Clear the delete-on-failure queue, deleting the files in it
6032 if this compilation failed. */
6034 if (this_file_error)
6036 delete_failure_queue ();
6039 /* If this compilation succeeded, don't delete those files later. */
6040 clear_failure_queue ();
6043 /* Reset the output file name to the first input file name, for use
6044 with %b in LINK_SPEC on a target that prefers not to emit a.out
6047 set_input (infiles[0].name);
6049 if (error_count == 0)
6051 /* Make sure INPUT_FILE_NUMBER points to first available open
6053 input_file_number = n_infiles;
6054 if (lang_specific_pre_link ())
6058 /* Run ld to link all the compiler output files. */
6060 if (error_count == 0)
6062 int tmp = execution_count;
6064 /* We'll use ld if we can't find collect2. */
6065 if (! strcmp (linker_name_spec, "collect2"))
6067 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
6069 linker_name_spec = "ld";
6071 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6073 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
6074 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
6076 value = do_spec (link_command_spec);
6079 linker_was_run = (tmp != execution_count);
6082 /* If options said don't run linker,
6083 complain about input files to be given to the linker. */
6085 if (! linker_was_run && error_count == 0)
6086 for (i = 0; (int) i < n_infiles; i++)
6087 if (explicit_link_files[i])
6088 error ("%s: linker input file unused because linking not done",
6091 /* Delete some or all of the temporary files we made. */
6094 delete_failure_queue ();
6095 delete_temp_files ();
6097 if (print_help_list)
6099 printf (("\nFor bug reporting instructions, please see:\n"));
6100 printf ("%s\n", GCCBUGURL);
6103 return (signal_count != 0 ? 2
6104 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6108 /* Find the proper compilation spec for the file name NAME,
6109 whose length is LENGTH. LANGUAGE is the specified language,
6110 or 0 if this file is to be passed to the linker. */
6112 static struct compiler *
6113 lookup_compiler (name, length, language)
6116 const char *language;
6118 struct compiler *cp;
6120 /* If this was specified by the user to be a linker input, indicate that. */
6121 if (language != 0 && language[0] == '*')
6124 /* Otherwise, look for the language, if one is spec'd. */
6127 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6128 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6131 error ("language %s not recognized", language);
6135 /* Look for a suffix. */
6136 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6138 if (/* The suffix `-' matches only the file name `-'. */
6139 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6140 || (strlen (cp->suffix) < length
6141 /* See if the suffix matches the end of NAME. */
6142 && !strcmp (cp->suffix,
6143 name + length - strlen (cp->suffix))
6148 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6149 /* look again, but case-insensitively this time. */
6151 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6153 if (/* The suffix `-' matches only the file name `-'. */
6154 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6155 || (strlen (cp->suffix) < length
6156 /* See if the suffix matches the end of NAME. */
6157 && ((!strcmp (cp->suffix,
6158 name + length - strlen (cp->suffix))
6159 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6160 && !strcasecmp (cp->suffix,
6161 name + length - strlen (cp->suffix)))
6167 if (cp >= compilers)
6169 if (cp->spec[0] != '@')
6170 /* A non-alias entry: return it. */
6173 /* An alias entry maps a suffix to a language.
6174 Search for the language; pass 0 for NAME and LENGTH
6175 to avoid infinite recursion if language not found. */
6176 return lookup_compiler (NULL, 0, cp->spec + 1);
6182 save_string (s, len)
6186 char *result = xmalloc (len + 1);
6188 memcpy (result, s, len);
6194 pfatal_with_name (name)
6197 perror_with_name (name);
6198 delete_temp_files ();
6203 perror_with_name (name)
6206 error ("%s: %s", name, xstrerror (errno));
6210 pfatal_pexecute (errmsg_fmt, errmsg_arg)
6211 const char *errmsg_fmt;
6212 const char *errmsg_arg;
6216 int save_errno = errno;
6218 /* Space for trailing '\0' is in %s. */
6219 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
6220 sprintf (msg, errmsg_fmt, errmsg_arg);
6226 pfatal_with_name (errmsg_fmt);
6229 /* Output an error message and exit */
6234 fatal ("internal gcc abort");
6237 /* Output an error message and exit */
6240 fatal VPARAMS ((const char *msgid, ...))
6242 VA_OPEN (ap, msgid);
6243 VA_FIXEDARG (ap, const char *, msgid);
6245 fprintf (stderr, "%s: ", programname);
6246 vfprintf (stderr, _(msgid), ap);
6248 fprintf (stderr, "\n");
6249 delete_temp_files ();
6254 error VPARAMS ((const char *msgid, ...))
6256 VA_OPEN (ap, msgid);
6257 VA_FIXEDARG (ap, const char *, msgid);
6259 fprintf (stderr, "%s: ", programname);
6260 vfprintf (stderr, _(msgid), ap);
6263 fprintf (stderr, "\n");
6267 notice VPARAMS ((const char *msgid, ...))
6269 VA_OPEN (ap, msgid);
6270 VA_FIXEDARG (ap, const char *, msgid);
6272 vfprintf (stderr, _(msgid), ap);
6277 validate_all_switches ()
6279 struct compiler *comp;
6282 struct spec_list *spec;
6284 for (comp = compilers; comp->spec; comp++)
6288 if (c == '%' && *p == '{')
6289 /* We have a switch spec. */
6290 validate_switches (p + 1);
6293 /* Look through the linked list of specs read from the specs file. */
6294 for (spec = specs; spec; spec = spec->next)
6296 p = *(spec->ptr_spec);
6298 if (c == '%' && *p == '{')
6299 /* We have a switch spec. */
6300 validate_switches (p + 1);
6303 p = link_command_spec;
6305 if (c == '%' && *p == '{')
6306 /* We have a switch spec. */
6307 validate_switches (p + 1);
6310 /* Look at the switch-name that comes after START
6311 and mark as valid all supplied switches that match it. */
6314 validate_switches (start)
6317 const char *p = start;
6334 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
6339 else if (p[-1] == '*')
6341 /* Mark all matching switches as valid. */
6342 for (i = 0; i < n_switches; i++)
6343 if (!strncmp (switches[i].part1, filter, p - filter - 1))
6344 switches[i].validated = 1;
6348 /* Mark an exact matching switch as valid. */
6349 for (i = 0; i < n_switches; i++)
6351 if (!strncmp (switches[i].part1, filter, p - filter)
6352 && switches[i].part1[p - filter] == 0)
6353 switches[i].validated = 1;
6357 if (*p++ == '|' || p[-1] == '&')
6361 /* Check whether a particular argument was used. The first time we
6362 canonicalize the switches to keep only the ones we care about. */
6372 const char *replace;
6377 static struct mswitchstr *mswitches;
6378 static int n_mswitches;
6383 struct mswitchstr *matches;
6387 /* Break multilib_matches into the component strings of string
6388 and replacement string. */
6389 for (q = multilib_matches; *q != '\0'; q++)
6394 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6396 q = multilib_matches;
6406 matches[i].len = q - matches[i].str;
6408 matches[i].replace = ++q;
6409 while (*q != ';' && *q != '\0')
6415 matches[i].rep_len = q - matches[i].replace;
6421 /* Now build a list of the replacement string for switches that we care
6422 about. Make sure we allocate at least one entry. This prevents
6423 xmalloc from calling fatal, and prevents us from re-executing this
6426 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6427 * (n_switches ? n_switches : 1));
6428 for (i = 0; i < n_switches; i++)
6430 int xlen = strlen (switches[i].part1);
6431 for (j = 0; j < cnt; j++)
6432 if (xlen == matches[j].len
6433 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6435 mswitches[n_mswitches].str = matches[j].replace;
6436 mswitches[n_mswitches].len = matches[j].rep_len;
6437 mswitches[n_mswitches].replace = (char *) 0;
6438 mswitches[n_mswitches].rep_len = 0;
6445 for (i = 0; i < n_mswitches; i++)
6446 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6453 default_arg (p, len)
6457 const char *start, *end;
6459 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6461 while (*start == ' ' || *start == '\t')
6467 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6470 if ((end - start) == len && strncmp (p, start, len) == 0)
6480 /* Work out the subdirectory to use based on the options. The format of
6481 multilib_select is a list of elements. Each element is a subdirectory
6482 name followed by a list of options followed by a semicolon. The format
6483 of multilib_exclusions is the same, but without the preceding
6484 directory. First gcc will check the exclusions, if none of the options
6485 beginning with an exclamation point are present, and all of the other
6486 options are present, then we will ignore this completely. Passing
6487 that, gcc will consider each multilib_select in turn using the same
6488 rules for matching the options. If a match is found, that subdirectory
6495 unsigned int this_path_len;
6496 const char *this_path, *this_arg;
6500 p = multilib_exclusions;
6503 /* Ignore newlines. */
6510 /* Check the arguments. */
6524 while (*p != ' ' && *p != ';')
6531 if (*this_arg != '!')
6539 ok = used_arg (this_arg, p - this_arg);
6553 p = multilib_select;
6556 /* Ignore newlines. */
6563 /* Get the initial path. */
6571 this_path_len = p - this_path;
6573 /* Check the arguments. */
6588 while (*p != ' ' && *p != ';')
6595 if (*this_arg != '!')
6603 /* If this is a default argument, we can just ignore it.
6604 This is true even if this_arg begins with '!'. Beginning
6605 with '!' does not mean that this argument is necessarily
6606 inappropriate for this library: it merely means that
6607 there is a more specific library which uses this
6608 argument. If this argument is a default, we need not
6609 consider that more specific library. */
6610 if (! default_arg (this_arg, p - this_arg))
6612 ok = used_arg (this_arg, p - this_arg);
6623 if (this_path_len != 1
6624 || this_path[0] != '.')
6626 char *new_multilib_dir = xmalloc (this_path_len + 1);
6627 strncpy (new_multilib_dir, this_path, this_path_len);
6628 new_multilib_dir[this_path_len] = '\0';
6629 multilib_dir = new_multilib_dir;
6638 /* Print out the multiple library subdirectory selection
6639 information. This prints out a series of lines. Each line looks
6640 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6641 required. Only the desired options are printed out, the negative
6642 matches. The options are print without a leading dash. There are
6643 no spaces to make it easy to use the information in the shell.
6644 Each subdirectory is printed only once. This assumes the ordering
6645 generated by the genmultilib script. Also, we leave out ones that match
6649 print_multilib_info ()
6651 const char *p = multilib_select;
6652 const char *last_path = 0, *this_path;
6654 unsigned int last_path_len = 0;
6659 /* Ignore newlines. */
6666 /* Get the initial path. */
6675 /* Check for matches with the multilib_exclusions. We don't bother
6676 with the '!' in either list. If any of the exclusion rules match
6677 all of its options with the select rule, we skip it. */
6679 const char *e = multilib_exclusions;
6680 const char *this_arg;
6685 /* Ignore newlines. */
6692 /* Check the arguments. */
6709 while (*e != ' ' && *e != ';')
6720 int len = e - this_arg;
6727 while (*q != ' ' && *q != ';')
6734 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6735 default_arg (this_arg, e - this_arg))
6765 /* If this is a duplicate, skip it. */
6766 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6767 && ! strncmp (last_path, this_path, last_path_len));
6769 last_path = this_path;
6770 last_path_len = p - this_path;
6773 /* If this directory requires any default arguments, we can skip
6774 it. We will already have printed a directory identical to
6775 this one which does not require that default argument. */
6793 while (*q != ' ' && *q != ';')
6801 && default_arg (arg, q - arg))
6816 for (p1 = last_path; p1 < p; p1++)
6835 use_arg = *p != '!';
6840 while (*p != ' ' && *p != ';')
6855 /* If there are extra options, print them now. */
6856 if (multilib_extra && *multilib_extra)
6858 int print_at = TRUE;
6861 for (q = multilib_extra; *q != '\0'; q++)