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 whether we should ONLY print the command and
190 arguments (like verbose_flag) without executing the command.
191 Displayed arguments are quoted so that the generated command
192 line is suitable for execution. This is intended for use in
193 shell scripts to capture the driver-generated command line. */
194 static int verbose_only_flag;
196 /* Flag indicating to print target specific command line options. */
198 static int target_help_flag;
200 /* Flag indicating whether we should report subprocess execution times
201 (if this is supported by the system - see pexecute.c). */
203 static int report_times;
205 /* Nonzero means write "temp" files in source directory
206 and use the source file's name in them, and don't delete them. */
208 static int save_temps_flag;
210 /* The compiler version. */
212 static const char *compiler_version;
214 /* The target version specified with -V */
216 static const char *spec_version = DEFAULT_TARGET_VERSION;
218 /* The target machine specified with -b. */
220 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
222 /* Nonzero if cross-compiling.
223 When -b is used, the value comes from the `specs' file. */
226 static const char *cross_compile = "1";
228 static const char *cross_compile = "0";
231 #ifdef MODIFY_TARGET_NAME
233 /* Information on how to alter the target name based on a command-line
234 switch. The only case we support now is simply appending or deleting a
235 string to or from the end of the first part of the configuration name. */
237 const struct modify_target
239 const char *const sw;
240 const enum add_del {ADD, DELETE} add_del;
241 const char *const str;
243 modify_target[] = MODIFY_TARGET_NAME;
246 /* The number of errors that have occurred; the link phase will not be
247 run if this is non-zero. */
248 static int error_count = 0;
250 /* Greatest exit code of sub-processes that has been encountered up to
252 static int greatest_status = 1;
254 /* This is the obstack which we use to allocate many strings. */
256 static struct obstack obstack;
258 /* This is the obstack to build an environment variable to pass to
259 collect2 that describes all of the relevant switches of what to
260 pass the compiler in building the list of pointers to constructors
263 static struct obstack collect_obstack;
265 /* These structs are used to collect resource usage information for
267 #ifdef HAVE_GETRUSAGE
268 static struct rusage rus, prus;
271 /* Forward declaration for prototypes. */
274 static void init_spec PARAMS ((void));
276 static char **split_directories PARAMS ((const char *, int *));
277 static void free_split_directories PARAMS ((char **));
278 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
280 static void store_arg PARAMS ((const char *, int, int));
281 static char *load_specs PARAMS ((const char *));
282 static void read_specs PARAMS ((const char *, int));
283 static void set_spec PARAMS ((const char *, const char *));
284 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
285 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
286 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
287 static int access_check PARAMS ((const char *, int));
288 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
289 static void add_prefix PARAMS ((struct path_prefix *, const char *,
290 const char *, int, int, int *));
291 static void translate_options PARAMS ((int *, const char *const **));
292 static char *skip_whitespace PARAMS ((char *));
293 static void delete_if_ordinary PARAMS ((const char *));
294 static void delete_temp_files PARAMS ((void));
295 static void delete_failure_queue PARAMS ((void));
296 static void clear_failure_queue PARAMS ((void));
297 static int check_live_switch PARAMS ((int, int));
298 static const char *handle_braces PARAMS ((const char *));
299 static char *save_string PARAMS ((const char *, int));
300 static void set_collect_gcc_options PARAMS ((void));
301 static int do_spec_1 PARAMS ((const char *, int, const char *));
302 static const char *find_file PARAMS ((const char *));
303 static int is_directory PARAMS ((const char *, const char *, int));
304 static void validate_switches PARAMS ((const char *));
305 static void validate_all_switches PARAMS ((void));
306 static void give_switch PARAMS ((int, int, int));
307 static int used_arg PARAMS ((const char *, int));
308 static int default_arg PARAMS ((const char *, int));
309 static void set_multilib_dir PARAMS ((void));
310 static void print_multilib_info PARAMS ((void));
311 static void perror_with_name PARAMS ((const char *));
312 static void pfatal_pexecute PARAMS ((const char *, const char *))
314 static void notice PARAMS ((const char *, ...))
316 static void display_help PARAMS ((void));
317 static void add_preprocessor_option PARAMS ((const char *, int));
318 static void add_assembler_option PARAMS ((const char *, int));
319 static void add_linker_option PARAMS ((const char *, int));
320 static void process_command PARAMS ((int, const char *const *));
321 static int execute PARAMS ((void));
322 static void clear_args PARAMS ((void));
323 static void fatal_error PARAMS ((int));
324 #ifdef ENABLE_SHARED_LIBGCC
325 static void init_gcc_specs PARAMS ((struct obstack *,
329 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
330 static const char *convert_filename PARAMS ((const char *, int, int));
333 /* The Specs Language
335 Specs are strings containing lines, each of which (if not blank)
336 is made up of a program name, and arguments separated by spaces.
337 The program name must be exact and start from root, since no path
338 is searched and it is unreliable to depend on the current working directory.
339 Redirection of input or output is not supported; the subprograms must
340 accept filenames saying what files to read and write.
342 In addition, the specs can contain %-sequences to substitute variable text
343 or for conditional text. Here is a table of all defined %-sequences.
344 Note that spaces are not generated automatically around the results of
345 expanding these sequences; therefore, you can concatenate them together
346 or with constant text in a single argument.
348 %% substitute one % into the program name or argument.
349 %i substitute the name of the input file being processed.
350 %b substitute the basename of the input file being processed.
351 This is the substring up to (and not including) the last period
352 and not including the directory.
353 %B same as %b, but include the file suffix (text after the last period).
355 substitute a file name that has suffix SUFFIX and is chosen
356 once per compilation, and mark the argument a la %d. To reduce
357 exposure to denial-of-service attacks, the file name is now
358 chosen in a way that is hard to predict even when previously
359 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
360 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
361 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
362 had been pre-processed. Previously, %g was simply substituted
363 with a file name chosen once per compilation, without regard
364 to any appended suffix (which was therefore treated just like
365 ordinary text), making such attacks more likely to succeed.
367 like %g, but generates a new temporary file name even if %uSUFFIX
370 substitutes the last file name generated with %uSUFFIX, generating a
371 new one if there is no such last file name. In the absence of any
372 %uSUFFIX, this is just like %gSUFFIX, except they don't share
373 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
374 would involve the generation of two distinct file names, one
375 for each `%g.s' and another for each `%U.s'. Previously, %U was
376 simply substituted with a file name chosen for the previous %u,
377 without regard to any appended suffix.
379 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
380 writable, and if save-temps is off; otherwise, substitute the name
381 of a temporary file, just like %u. This temporary file is not
382 meant for communication between processes, but rather as a junk
385 substitutes .SUFFIX for the suffixes of a matched switch's args when
386 it is subsequently output with %*. SUFFIX is terminated by the next
388 %d marks the argument containing or following the %d as a
389 temporary file name, so that that file will be deleted if CC exits
390 successfully. Unlike %g, this contributes no text to the argument.
391 %w marks the argument containing or following the %w as the
392 "output file" of this compilation. This puts the argument
393 into the sequence of arguments that %o will substitute later.
395 like %{...} but mark last argument supplied within
396 as a file to be deleted on failure.
397 %o substitutes the names of all the output files, with spaces
398 automatically placed around them. You should write spaces
399 around the %o as well or the results are undefined.
400 %o is for use in the specs for running the linker.
401 Input files whose names have no recognized suffix are not compiled
402 at all, but they are included among the output files, so they will
404 %O substitutes the suffix for object files. Note that this is
405 handled specially when it immediately follows %g, %u, or %U
406 (with or without a suffix argument) because of the need for
407 those to form complete file names. The handling is such that
408 %O is treated exactly as if it had already been substituted,
409 except that %g, %u, and %U do not currently support additional
410 SUFFIX characters following %O as they would following, for
412 %p substitutes the standard macro predefinitions for the
413 current target machine. Use this when running cpp.
414 %P like %p, but puts `__' before and after the name of each macro.
415 (Except macros that already have __.)
417 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
418 %s current argument is the name of a library or startup file of some sort.
419 Search for that file in a standard list of directories
420 and substitute the full name found.
421 %eSTR Print STR as an error message. STR is terminated by a newline.
422 Use this when inconsistent options are detected.
423 %nSTR Print STR as an notice. STR is terminated by a newline.
424 %x{OPTION} Accumulate an option for %X.
425 %X Output the accumulated linker options specified by compilations.
426 %Y Output the accumulated assembler options specified by compilations.
427 %Z Output the accumulated preprocessor options specified by compilations.
428 %v1 Substitute the major version number of GCC.
429 (For version 2.5.3, this is 2.)
430 %v2 Substitute the minor version number of GCC.
431 (For version 2.5.3, this is 5.)
432 %v3 Substitute the patch level number of GCC.
433 (For version 2.5.3, this is 3.)
434 %a process ASM_SPEC as a spec.
435 This allows config.h to specify part of the spec for running as.
436 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
437 used here. This can be used to run a post-processor after the
438 assembler has done its job.
439 %D Dump out a -L option for each directory in startfile_prefixes.
440 If multilib_dir is set, extra entries are generated with it affixed.
441 %l process LINK_SPEC as a spec.
442 %L process LIB_SPEC as a spec.
443 %G process LIBGCC_SPEC as a spec.
444 %M output multilib_dir with directory separators replaced with "_";
445 if multilib_dir is not set or is ".", output "".
446 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
447 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
448 %c process SIGNED_CHAR_SPEC as a spec.
449 %C process CPP_SPEC as a spec.
450 %1 process CC1_SPEC as a spec.
451 %2 process CC1PLUS_SPEC as a spec.
452 %| output "-" if the input for the current command is coming from a pipe.
453 %* substitute the variable part of a matched option. (See below.)
454 Note that each comma in the substituted string is replaced by
456 %{S} substitutes the -S switch, if that switch was given to CC.
457 If that switch was not specified, this substitutes nothing.
458 Here S is a metasyntactic variable.
459 %{S*} substitutes all the switches specified to CC whose names start
460 with -S. This is used for -o, -I, etc; switches that take
461 arguments. CC considers `-o foo' as being one switch whose
462 name starts with `o'. %{o*} would substitute this text,
463 including the space; thus, two arguments would be generated.
464 %{^S*} likewise, but don't put a blank between a switch and any args.
465 %{S*&T*} likewise, but preserve order of S and T options (the order
466 of S and T in the spec is not significant). Can be any number
467 of ampersand-separated variables; for each the wild card is
468 optional. Useful for CPP as %{D*&U*&A*}.
469 %{S*:X} substitutes X if one or more switches whose names start with -S are
470 specified to CC. Note that the tail part of the -S option
471 (i.e. the part matched by the `*') will be substituted for each
472 occurrence of %* within X.
473 %{<S} remove all occurrences of -S from the command line.
474 Note - this option is position dependent. % commands in the
475 spec string before this option will see -S, % commands in the
476 spec string after this option will not.
477 %{S:X} substitutes X, but only if the -S switch was given to CC.
478 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
479 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
480 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
481 %{.S:X} substitutes X, but only if processing a file with suffix S.
482 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
483 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
484 combined with ! and . as above binding stronger than the OR.
485 %(Spec) processes a specification defined in a specs file as *Spec:
486 %[Spec] as above, but put __ around -D arguments
488 The conditional text X in a %{S:X} or %{!S:X} construct may contain
489 other nested % constructs or spaces, or even newlines. They are
490 processed as usual, as described above.
492 The -O, -f, -m, and -W switches are handled specifically in these
493 constructs. If another value of -O or the negated form of a -f, -m, or
494 -W switch is found later in the command line, the earlier switch
495 value is ignored, except with {S*} where S is just one letter; this
496 passes all matching options.
498 The character | at the beginning of the predicate text is used to indicate
499 that a command should be piped to the following command, but only if -pipe
502 Note that it is built into CC which switches take arguments and which
503 do not. You might think it would be useful to generalize this to
504 allow each compiler's spec to say which switches take arguments. But
505 this cannot be done in a consistent fashion. CC cannot even decide
506 which input files have been specified without knowing which switches
507 take arguments, and it must know which input files to compile in order
508 to tell which compilers to run.
510 CC also knows implicitly that arguments starting in `-l' are to be
511 treated as compiler output files, and passed to the linker in their
512 proper position among the other output files. */
514 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
516 /* config.h can define ASM_SPEC to provide extra args to the assembler
517 or extra switch-translations. */
522 /* config.h can define ASM_FINAL_SPEC to run a post processor after
523 the assembler has run. */
524 #ifndef ASM_FINAL_SPEC
525 #define ASM_FINAL_SPEC ""
528 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
529 or extra switch-translations. */
534 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
535 or extra switch-translations. */
540 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
541 or extra switch-translations. */
543 #define CC1PLUS_SPEC ""
546 /* config.h can define LINK_SPEC to provide extra args to the linker
547 or extra switch-translations. */
552 /* config.h can define LIB_SPEC to override the default libraries. */
554 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
557 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
560 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
561 /* Have gcc do the search for libgcc.a. */
562 #define LIBGCC_SPEC "libgcc.a%s"
564 #define LIBGCC_SPEC "-lgcc"
568 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
569 #ifndef STARTFILE_SPEC
570 #define STARTFILE_SPEC \
571 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
574 /* config.h can define SWITCHES_NEED_SPACES to control which options
575 require spaces between the option and the argument. */
576 #ifndef SWITCHES_NEED_SPACES
577 #define SWITCHES_NEED_SPACES ""
580 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
582 #define ENDFILE_SPEC ""
585 /* This spec is used for telling cpp whether char is signed or not. */
586 #ifndef SIGNED_CHAR_SPEC
587 /* Use #if rather than ?:
588 because MIPS C compiler rejects like ?: in initializers. */
589 #if DEFAULT_SIGNED_CHAR
590 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
592 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
597 #define LINKER_NAME "collect2"
600 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
602 #ifndef ASM_DEBUG_SPEC
603 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
604 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
605 # define ASM_DEBUG_SPEC \
606 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
607 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
608 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
610 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
611 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
613 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
614 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
618 #ifndef ASM_DEBUG_SPEC
619 # define ASM_DEBUG_SPEC ""
622 /* Here is the spec for running the linker, after compiling all files. */
624 /* -u* was put back because both BSD and SysV seem to support it. */
625 /* %{static:} simply prevents an error message if the target machine
626 doesn't handle -static. */
627 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
628 scripts which exist in user specified directories, or in standard
630 #ifndef LINK_COMMAND_SPEC
631 #define LINK_COMMAND_SPEC "\
632 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
633 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
634 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
635 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
636 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
639 #ifndef LINK_LIBGCC_SPEC
640 # ifdef LINK_LIBGCC_SPECIAL
641 /* Don't generate -L options for startfile prefix list. */
642 # define LINK_LIBGCC_SPEC ""
644 /* Do generate them. */
645 # define LINK_LIBGCC_SPEC "%D"
649 static const char *asm_debug = ASM_DEBUG_SPEC;
650 static const char *cpp_spec = CPP_SPEC;
651 static const char *cpp_predefines = CPP_PREDEFINES;
652 static const char *cc1_spec = CC1_SPEC;
653 static const char *cc1plus_spec = CC1PLUS_SPEC;
654 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
655 static const char *asm_spec = ASM_SPEC;
656 static const char *asm_final_spec = ASM_FINAL_SPEC;
657 static const char *link_spec = LINK_SPEC;
658 static const char *lib_spec = LIB_SPEC;
659 static const char *libgcc_spec = LIBGCC_SPEC;
660 static const char *endfile_spec = ENDFILE_SPEC;
661 static const char *startfile_spec = STARTFILE_SPEC;
662 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
663 static const char *linker_name_spec = LINKER_NAME;
664 static const char *link_command_spec = LINK_COMMAND_SPEC;
665 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
667 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
668 There should be no need to override these in target dependent files,
669 but we need to copy them to the specs file so that newer versions
670 of the GCC driver can correctly drive older tool chains with the
671 appropriate -B options. */
673 static const char *trad_capable_cpp =
674 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
676 static const char *cpp_options =
677 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
678 %{std*} %{nostdinc*}\
679 %{C} %{v} %{I*} %{P} %{$} %I\
680 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
681 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
682 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
683 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
684 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
685 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
686 %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
687 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
688 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
689 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
690 %{fshow-column} %{fno-show-column}\
691 %{fleading-underscore} %{fno-leading-underscore}\
692 %{fno-operator-names} %{ftabstop=*} %{remap}\
693 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
696 /* NB: This is shared amongst all front-ends. */
697 static const char *cc1_options =
698 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
699 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
700 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
701 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
702 %{Qn:-fno-ident} %{--help:--help}\
703 %{--target-help:--target-help}\
704 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
705 %{fsyntax-only:-o %j} %{-param*}";
707 static const char *asm_options =
708 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
710 static const char *invoke_as =
711 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
713 /* Some compilers have limits on line lengths, and the multilib_select
714 and/or multilib_matches strings can be very long, so we build them at
716 static struct obstack multilib_obstack;
717 static const char *multilib_select;
718 static const char *multilib_matches;
719 static const char *multilib_defaults;
720 static const char *multilib_exclusions;
721 #include "multilib.h"
723 /* Check whether a particular argument is a default argument. */
725 #ifndef MULTILIB_DEFAULTS
726 #define MULTILIB_DEFAULTS { "" }
729 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
733 struct user_specs *next;
734 const char *filename;
737 static struct user_specs *user_specs_head, *user_specs_tail;
739 /* This defines which switch letters take arguments. */
741 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
742 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
743 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
744 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
745 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
746 || (CHAR) == 'B' || (CHAR) == 'b')
748 #ifndef SWITCH_TAKES_ARG
749 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
752 /* This defines which multi-letter switches take arguments. */
754 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
755 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
756 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
757 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
758 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
759 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
760 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
761 || !strcmp (STR, "specs") \
762 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
764 #ifndef WORD_SWITCH_TAKES_ARG
765 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
768 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
769 /* This defines which switches stop a full compilation. */
770 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
771 ((CHAR) == 'c' || (CHAR) == 'S')
773 #ifndef SWITCH_CURTAILS_COMPILATION
774 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
775 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
779 /* Record the mapping from file suffixes for compilation specs. */
783 const char *suffix; /* Use this compiler for input files
784 whose names end in this suffix. */
786 const char *spec; /* To use this compiler, run this spec. */
788 const char *cpp_spec; /* If non-NULL, substitute this spec
789 for `%C', rather than the usual
793 /* Pointer to a vector of `struct compiler' that gives the spec for
794 compiling a file, based on its suffix.
795 A file that does not end in any of these suffixes will be passed
796 unchanged to the loader and nothing else will be done to it.
798 An entry containing two 0s is used to terminate the vector.
800 If multiple entries match a file, the last matching one is used. */
802 static struct compiler *compilers;
804 /* Number of entries in `compilers', not counting the null terminator. */
806 static int n_compilers;
808 /* The default list of file name suffixes and their compilation specs. */
810 static struct compiler default_compilers[] =
812 /* Add lists of suffixes of known languages here. If those languages
813 were not present when we built the driver, we will hit these copies
814 and be given a more meaningful error than "file not used since
815 linking is not done". */
816 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
817 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
818 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
820 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
821 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
822 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
823 {".r", "#Ratfor", 0},
824 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
825 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
826 {".java", "#Java", 0}, {".class", "#Java", 0},
827 {".zip", "#Java", 0}, {".jar", "#Java", 0},
828 /* Next come the entries for C. */
831 /* cc1 has an integrated ISO C preprocessor. We should invoke the
832 external preprocessor if -save-temps or -traditional is given. */
833 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
835 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
836 %(cpp_options) %b.i \n\
837 cc1 -fpreprocessed %b.i %(cc1_options)}\
839 %{traditional|ftraditional|traditional-cpp:\
840 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
841 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
842 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
843 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
844 %{!fsyntax-only:%(invoke_as)}}}}", 0},
846 "%{!E:%e-E required when input is from standard input}\
847 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
848 {".h", "@c-header", 0},
850 "%{!E:%ecompilation of header file requested} \
851 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
852 {".i", "@cpp-output", 0},
854 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
855 {".s", "@assembler", 0},
857 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
858 {".S", "@assembler-with-cpp", 0},
859 {"@assembler-with-cpp",
860 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
861 %{!M:%{!MM:%{!E:%{!S:-o %{|!pipe:%g.s} |\n\
862 as %(asm_debug) %(asm_options) %{!pipe:%g.s} %A }}}}", 0},
864 /* Mark end of table */
868 /* Number of elements in default_compilers, not counting the terminator. */
870 static int n_default_compilers
871 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
873 /* A vector of options to give to the linker.
874 These options are accumulated by %x,
875 and substituted into the linker command with %X. */
876 static int n_linker_options;
877 static char **linker_options;
879 /* A vector of options to give to the assembler.
880 These options are accumulated by -Wa,
881 and substituted into the assembler command with %Y. */
882 static int n_assembler_options;
883 static char **assembler_options;
885 /* A vector of options to give to the preprocessor.
886 These options are accumulated by -Wp,
887 and substituted into the preprocessor command with %Z. */
888 static int n_preprocessor_options;
889 static char **preprocessor_options;
891 /* Define how to map long options into short ones. */
893 /* This structure describes one mapping. */
896 /* The long option's name. */
897 const char *const name;
898 /* The equivalent short option. */
899 const char *const equivalent;
900 /* Argument info. A string of flag chars; NULL equals no options.
901 a => argument required.
902 o => argument optional.
903 j => join argument to equivalent, making one word.
904 * => require other text after NAME as an argument. */
905 const char *const arg_info;
908 /* This is the table of mappings. Mappings are tried sequentially
909 for each option encountered; the first one that matches, wins. */
911 static const struct option_map option_map[] =
913 {"--all-warnings", "-Wall", 0},
914 {"--ansi", "-ansi", 0},
915 {"--assemble", "-S", 0},
916 {"--assert", "-A", "a"},
917 {"--classpath", "-fclasspath=", "aj"},
918 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
919 {"--comments", "-C", 0},
920 {"--compile", "-c", 0},
921 {"--debug", "-g", "oj"},
922 {"--define-macro", "-D", "aj"},
923 {"--dependencies", "-M", 0},
924 {"--dump", "-d", "a"},
925 {"--dumpbase", "-dumpbase", "a"},
926 {"--entry", "-e", 0},
927 {"--extra-warnings", "-W", 0},
928 {"--for-assembler", "-Wa", "a"},
929 {"--for-linker", "-Xlinker", "a"},
930 {"--force-link", "-u", "a"},
931 {"--imacros", "-imacros", "a"},
932 {"--include", "-include", "a"},
933 {"--include-barrier", "-I-", 0},
934 {"--include-directory", "-I", "aj"},
935 {"--include-directory-after", "-idirafter", "a"},
936 {"--include-prefix", "-iprefix", "a"},
937 {"--include-with-prefix", "-iwithprefix", "a"},
938 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
939 {"--include-with-prefix-after", "-iwithprefix", "a"},
940 {"--language", "-x", "a"},
941 {"--library-directory", "-L", "a"},
942 {"--machine", "-m", "aj"},
943 {"--machine-", "-m", "*j"},
944 {"--no-line-commands", "-P", 0},
945 {"--no-precompiled-includes", "-noprecomp", 0},
946 {"--no-standard-includes", "-nostdinc", 0},
947 {"--no-standard-libraries", "-nostdlib", 0},
948 {"--no-warnings", "-w", 0},
949 {"--optimize", "-O", "oj"},
950 {"--output", "-o", "a"},
951 {"--output-class-directory", "-foutput-class-dir=", "ja"},
952 {"--param", "--param", "a"},
953 {"--pedantic", "-pedantic", 0},
954 {"--pedantic-errors", "-pedantic-errors", 0},
955 {"--pipe", "-pipe", 0},
956 {"--prefix", "-B", "a"},
957 {"--preprocess", "-E", 0},
958 {"--print-search-dirs", "-print-search-dirs", 0},
959 {"--print-file-name", "-print-file-name=", "aj"},
960 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
961 {"--print-missing-file-dependencies", "-MG", 0},
962 {"--print-multi-lib", "-print-multi-lib", 0},
963 {"--print-multi-directory", "-print-multi-directory", 0},
964 {"--print-prog-name", "-print-prog-name=", "aj"},
965 {"--profile", "-p", 0},
966 {"--profile-blocks", "-a", 0},
967 {"--quiet", "-q", 0},
968 {"--save-temps", "-save-temps", 0},
969 {"--shared", "-shared", 0},
970 {"--silent", "-q", 0},
971 {"--specs", "-specs=", "aj"},
972 {"--static", "-static", 0},
973 {"--std", "-std=", "aj"},
974 {"--symbolic", "-symbolic", 0},
975 {"--target", "-b", "a"},
976 {"--time", "-time", 0},
977 {"--trace-includes", "-H", 0},
978 {"--traditional", "-traditional", 0},
979 {"--traditional-cpp", "-traditional-cpp", 0},
980 {"--trigraphs", "-trigraphs", 0},
981 {"--undefine-macro", "-U", "aj"},
982 {"--use-version", "-V", "a"},
983 {"--user-dependencies", "-MM", 0},
984 {"--verbose", "-v", 0},
985 {"--version", "-dumpversion", 0},
986 {"--warn-", "-W", "*j"},
987 {"--write-dependencies", "-MD", 0},
988 {"--write-user-dependencies", "-MMD", 0},
993 #ifdef TARGET_OPTION_TRANSLATE_TABLE
994 static const struct {
995 const char *const option_found;
996 const char *const replacements;
997 } target_option_translations[] =
999 TARGET_OPTION_TRANSLATE_TABLE,
1004 /* Translate the options described by *ARGCP and *ARGVP.
1005 Make a new vector and store it back in *ARGVP,
1006 and store its length in *ARGVC. */
1009 translate_options (argcp, argvp)
1011 const char *const **argvp;
1015 const char *const *argv = *argvp;
1016 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1018 (const char **) xmalloc (newvsize);
1022 newv[newindex++] = argv[i++];
1026 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1030 target_option_translations[tott_idx].option_found;
1033 if (strcmp (target_option_translations[tott_idx].option_found,
1040 for (sp = target_option_translations[tott_idx].replacements;
1047 newvsize += spaces * sizeof (const char *);
1048 newv = (const char **) xrealloc (newv, newvsize);
1050 sp = target_option_translations[tott_idx].replacements;
1059 newv[newindex++] = np;
1060 while (*np != ' ' && *np)
1071 if (target_option_translations[tott_idx].option_found)
1075 /* Translate -- options. */
1076 if (argv[i][0] == '-' && argv[i][1] == '-')
1079 /* Find a mapping that applies to this option. */
1080 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1082 size_t optlen = strlen (option_map[j].name);
1083 size_t arglen = strlen (argv[i]);
1084 size_t complen = arglen > optlen ? optlen : arglen;
1085 const char *arginfo = option_map[j].arg_info;
1090 if (!strncmp (argv[i], option_map[j].name, complen))
1092 const char *arg = 0;
1094 if (arglen < optlen)
1097 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1098 if (strlen (option_map[k].name) >= arglen
1099 && !strncmp (argv[i], option_map[k].name, arglen))
1101 error ("ambiguous abbreviation %s", argv[i]);
1105 if (k != ARRAY_SIZE (option_map))
1109 if (arglen > optlen)
1111 /* If the option has an argument, accept that. */
1112 if (argv[i][optlen] == '=')
1113 arg = argv[i] + optlen + 1;
1115 /* If this mapping requires extra text at end of name,
1116 accept that as "argument". */
1117 else if (strchr (arginfo, '*') != 0)
1118 arg = argv[i] + optlen;
1120 /* Otherwise, extra text at end means mismatch.
1121 Try other mappings. */
1126 else if (strchr (arginfo, '*') != 0)
1128 error ("incomplete `%s' option", option_map[j].name);
1132 /* Handle arguments. */
1133 if (strchr (arginfo, 'a') != 0)
1139 error ("missing argument to `%s' option",
1140 option_map[j].name);
1147 else if (strchr (arginfo, '*') != 0)
1149 else if (strchr (arginfo, 'o') == 0)
1152 error ("extraneous argument to `%s' option",
1153 option_map[j].name);
1157 /* Store the translation as one argv elt or as two. */
1158 if (arg != 0 && strchr (arginfo, 'j') != 0)
1159 newv[newindex++] = concat (option_map[j].equivalent, arg,
1163 newv[newindex++] = option_map[j].equivalent;
1164 newv[newindex++] = arg;
1167 newv[newindex++] = option_map[j].equivalent;
1175 /* Handle old-fashioned options--just copy them through,
1176 with their arguments. */
1177 else if (argv[i][0] == '-')
1179 const char *p = argv[i] + 1;
1183 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1184 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1185 else if (WORD_SWITCH_TAKES_ARG (p))
1186 nskip += WORD_SWITCH_TAKES_ARG (p);
1187 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1190 else if (! strcmp (p, "Xlinker"))
1193 /* Watch out for an option at the end of the command line that
1194 is missing arguments, and avoid skipping past the end of the
1196 if (nskip + i > argc)
1201 newv[newindex++] = argv[i++];
1206 /* Ordinary operands, or +e options. */
1207 newv[newindex++] = argv[i++];
1222 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1223 be considered whitespace. */
1224 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1226 else if (*p == '\n' || *p == ' ' || *p == '\t')
1240 /* Structures to keep track of prefixes to try when looking for files. */
1244 const char *prefix; /* String to prepend to the path. */
1245 struct prefix_list *next; /* Next in linked list. */
1246 int require_machine_suffix; /* Don't use without machine_suffix. */
1247 /* 2 means try both machine_suffix and just_machine_suffix. */
1248 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1249 int priority; /* Sort key - priority within list */
1254 struct prefix_list *plist; /* List of prefixes to try */
1255 int max_len; /* Max length of a prefix in PLIST */
1256 const char *name; /* Name of this list (used in config stuff) */
1259 /* List of prefixes to try when looking for executables. */
1261 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1263 /* List of prefixes to try when looking for startup (crt0) files. */
1265 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1267 /* List of prefixes to try when looking for include files. */
1269 static struct path_prefix include_prefixes = { 0, 0, "include" };
1271 /* Suffix to attach to directories searched for commands.
1272 This looks like `MACHINE/VERSION/'. */
1274 static const char *machine_suffix = 0;
1276 /* Suffix to attach to directories searched for commands.
1277 This is just `MACHINE/'. */
1279 static const char *just_machine_suffix = 0;
1281 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1283 static const char *gcc_exec_prefix;
1285 /* Default prefixes to attach to command names. */
1287 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1288 #undef MD_EXEC_PREFIX
1289 #undef MD_STARTFILE_PREFIX
1290 #undef MD_STARTFILE_PREFIX_1
1293 /* If no prefixes defined, use the null string, which will disable them. */
1294 #ifndef MD_EXEC_PREFIX
1295 #define MD_EXEC_PREFIX ""
1297 #ifndef MD_STARTFILE_PREFIX
1298 #define MD_STARTFILE_PREFIX ""
1300 #ifndef MD_STARTFILE_PREFIX_1
1301 #define MD_STARTFILE_PREFIX_1 ""
1304 /* Supply defaults for the standard prefixes. */
1306 #ifndef STANDARD_EXEC_PREFIX
1307 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1309 #ifndef STANDARD_STARTFILE_PREFIX
1310 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1312 #ifndef TOOLDIR_BASE_PREFIX
1313 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1315 #ifndef STANDARD_BINDIR_PREFIX
1316 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1319 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1320 static const char *const standard_exec_prefix_1 = "/usr/lib/gcc/";
1321 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1323 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1324 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1325 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1326 static const char *const standard_startfile_prefix_1 = "/lib/";
1327 static const char *const standard_startfile_prefix_2 = "/usr/lib/";
1329 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1330 static const char *tooldir_prefix;
1332 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1334 /* Subdirectory to use for locating libraries. Set by
1335 set_multilib_dir based on the compilation options. */
1337 static const char *multilib_dir;
1339 /* Structure to keep track of the specs that have been defined so far.
1340 These are accessed using %(specname) or %[specname] in a compiler
1345 /* The following 2 fields must be first */
1346 /* to allow EXTRA_SPECS to be initialized */
1347 const char *name; /* name of the spec. */
1348 const char *ptr; /* available ptr if no static pointer */
1350 /* The following fields are not initialized */
1351 /* by EXTRA_SPECS */
1352 const char **ptr_spec; /* pointer to the spec itself. */
1353 struct spec_list *next; /* Next spec in linked list. */
1354 int name_len; /* length of the name */
1355 int alloc_p; /* whether string was allocated */
1358 #define INIT_STATIC_SPEC(NAME,PTR) \
1359 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1361 /* List of statically defined specs. */
1362 static struct spec_list static_specs[] =
1364 INIT_STATIC_SPEC ("asm", &asm_spec),
1365 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1366 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1367 INIT_STATIC_SPEC ("asm_options", &asm_options),
1368 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1369 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1370 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1371 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1372 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1373 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1374 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1375 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1376 INIT_STATIC_SPEC ("link", &link_spec),
1377 INIT_STATIC_SPEC ("lib", &lib_spec),
1378 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1379 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1380 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1381 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1382 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1383 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1384 INIT_STATIC_SPEC ("version", &compiler_version),
1385 INIT_STATIC_SPEC ("multilib", &multilib_select),
1386 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1387 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1388 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1389 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1390 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1391 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1392 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1393 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1394 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1397 #ifdef EXTRA_SPECS /* additional specs needed */
1398 /* Structure to keep track of just the first two args of a spec_list.
1399 That is all that the EXTRA_SPECS macro gives us. */
1402 const char *const name;
1403 const char *const ptr;
1406 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1407 static struct spec_list *extra_specs = (struct spec_list *) 0;
1410 /* List of dynamically allocates specs that have been defined so far. */
1412 static struct spec_list *specs = (struct spec_list *) 0;
1414 /* Add appropriate libgcc specs to OBSTACK, taking into account
1415 various permutations of -shared-libgcc, -shared, and such. */
1417 #ifdef ENABLE_SHARED_LIBGCC
1419 init_gcc_specs (obstack, shared_name, static_name)
1420 struct obstack *obstack;
1421 const char *shared_name;
1422 const char *static_name;
1426 /* If we see -shared-libgcc, then use the shared version. */
1427 sprintf (buffer, "%%{shared-libgcc:%s %s}", shared_name, static_name);
1428 obstack_grow (obstack, buffer, strlen (buffer));
1429 /* If we see -static-libgcc, then use the static version. */
1430 sprintf (buffer, "%%{static-libgcc:%s}", static_name);
1431 obstack_grow (obstack, buffer, strlen (buffer));
1432 /* Otherwise, if we see -shared, then use the shared version. */
1434 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s %s}}}",
1435 shared_name, static_name);
1436 obstack_grow (obstack, buffer, strlen (buffer));
1437 /* Otherwise, use the static version. */
1439 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1441 obstack_grow (obstack, buffer, strlen (buffer));
1443 #endif /* ENABLE_SHARED_LIBGCC */
1445 /* Initialize the specs lookup routines. */
1450 struct spec_list *next = (struct spec_list *) 0;
1451 struct spec_list *sl = (struct spec_list *) 0;
1455 return; /* Already initialized. */
1458 notice ("Using builtin specs.\n");
1461 extra_specs = (struct spec_list *)
1462 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1464 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1466 sl = &extra_specs[i];
1467 sl->name = extra_specs_1[i].name;
1468 sl->ptr = extra_specs_1[i].ptr;
1470 sl->name_len = strlen (sl->name);
1471 sl->ptr_spec = &sl->ptr;
1476 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1478 sl = &static_specs[i];
1483 #ifdef ENABLE_SHARED_LIBGCC
1484 /* ??? If neither -shared-libgcc nor --static-libgcc was
1485 seen, then we should be making an educated guess. Some proposed
1486 heuristics for ELF include:
1488 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1489 program will be doing dynamic loading, which will likely
1490 need the shared libgcc.
1492 (2) If "-ldl", then it's also a fair bet that we're doing
1495 (3) For each ET_DYN we're linking against (either through -lfoo
1496 or /some/path/foo.so), check to see whether it or one of
1497 its dependencies depends on a shared libgcc.
1501 If the runtime is fixed to look for program headers instead
1502 of calling __register_frame_info at all, for each object,
1503 use the shared libgcc if any EH symbol referenced.
1505 If crtstuff is fixed to not invoke __register_frame_info
1506 automatically, for each object, use the shared libgcc if
1507 any non-empty unwind section found.
1509 Doing any of this probably requires invoking an external program to
1510 do the actual object file scanning. */
1512 const char *p = libgcc_spec;
1515 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1516 when given the proper command line arguments. */
1519 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1521 init_gcc_specs (&obstack,
1522 #ifdef NO_SHARED_LIBGCC_MULTILIB
1532 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1534 /* Ug. We don't know shared library extensions. Hope that
1535 systems that use this form don't do shared libraries. */
1536 init_gcc_specs (&obstack,
1537 #ifdef NO_SHARED_LIBGCC_MULTILIB
1549 obstack_1grow (&obstack, *p);
1550 in_sep = (*p == ' ');
1555 obstack_1grow (&obstack, '\0');
1556 libgcc_spec = obstack_finish (&obstack);
1559 #ifdef USE_AS_TRADITIONAL_FORMAT
1560 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1562 static const char tf[] = "--traditional-format ";
1563 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1564 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1565 asm_spec = obstack_finish (&obstack);
1572 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1573 removed; If the spec starts with a + then SPEC is added to the end of the
1577 set_spec (name, spec)
1581 struct spec_list *sl;
1582 const char *old_spec;
1583 int name_len = strlen (name);
1586 /* If this is the first call, initialize the statically allocated specs. */
1589 struct spec_list *next = (struct spec_list *) 0;
1590 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1592 sl = &static_specs[i];
1599 /* See if the spec already exists. */
1600 for (sl = specs; sl; sl = sl->next)
1601 if (name_len == sl->name_len && !strcmp (sl->name, name))
1606 /* Not found - make it. */
1607 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1608 sl->name = xstrdup (name);
1609 sl->name_len = name_len;
1610 sl->ptr_spec = &sl->ptr;
1612 *(sl->ptr_spec) = "";
1617 old_spec = *(sl->ptr_spec);
1618 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1619 ? concat (old_spec, spec + 1, NULL)
1624 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1627 /* Free the old spec. */
1628 if (old_spec && sl->alloc_p)
1629 free ((PTR) old_spec);
1634 /* Accumulate a command (program name and args), and run it. */
1636 /* Vector of pointers to arguments in the current line of specifications. */
1638 static const char **argbuf;
1640 /* Number of elements allocated in argbuf. */
1642 static int argbuf_length;
1644 /* Number of elements in argbuf currently in use (containing args). */
1646 static int argbuf_index;
1648 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1649 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1652 static struct temp_name {
1653 const char *suffix; /* suffix associated with the code. */
1654 int length; /* strlen (suffix). */
1655 int unique; /* Indicates whether %g or %u/%U was used. */
1656 const char *filename; /* associated filename. */
1657 int filename_length; /* strlen (filename). */
1658 struct temp_name *next;
1661 /* Number of commands executed so far. */
1663 static int execution_count;
1665 /* Number of commands that exited with a signal. */
1667 static int signal_count;
1669 /* Name with which this program was invoked. */
1671 static const char *programname;
1673 /* Clear out the vector of arguments (after a command is executed). */
1681 /* Add one argument to the vector at the end.
1682 This is done when a space is seen or at the end of the line.
1683 If DELETE_ALWAYS is nonzero, the arg is a filename
1684 and the file should be deleted eventually.
1685 If DELETE_FAILURE is nonzero, the arg is a filename
1686 and the file should be deleted if this compilation fails. */
1689 store_arg (arg, delete_always, delete_failure)
1691 int delete_always, delete_failure;
1693 if (argbuf_index + 1 == argbuf_length)
1695 = (const char **) xrealloc (argbuf,
1696 (argbuf_length *= 2) * sizeof (const char *));
1698 argbuf[argbuf_index++] = arg;
1699 argbuf[argbuf_index] = 0;
1701 if (delete_always || delete_failure)
1702 record_temp_file (arg, delete_always, delete_failure);
1705 /* Load specs from a file name named FILENAME, replacing occurrences of
1706 various different types of line-endings, \r\n, \n\r and just \r, with
1710 load_specs (filename)
1711 const char *filename;
1715 struct stat statbuf;
1722 notice ("Reading specs from %s\n", filename);
1724 /* Open and stat the file. */
1725 desc = open (filename, O_RDONLY, 0);
1727 pfatal_with_name (filename);
1728 if (stat (filename, &statbuf) < 0)
1729 pfatal_with_name (filename);
1731 /* Read contents of file into BUFFER. */
1732 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1733 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1735 pfatal_with_name (filename);
1736 buffer[readlen] = 0;
1739 specs = xmalloc (readlen + 1);
1741 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1747 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1749 else if (*(buffer_p + 1) == '\n') /* \r\n */
1763 /* Read compilation specs from a file named FILENAME,
1764 replacing the default ones.
1766 A suffix which starts with `*' is a definition for
1767 one of the machine-specific sub-specs. The "suffix" should be
1768 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1769 The corresponding spec is stored in asm_spec, etc.,
1770 rather than in the `compilers' vector.
1772 Anything invalid in the file is a fatal error. */
1775 read_specs (filename, main_p)
1776 const char *filename;
1782 buffer = load_specs (filename);
1784 /* Scan BUFFER for specs, putting them in the vector. */
1790 char *in, *out, *p1, *p2, *p3;
1792 /* Advance P in BUFFER to the next nonblank nocomment line. */
1793 p = skip_whitespace (p);
1797 /* Is this a special command that starts with '%'? */
1798 /* Don't allow this for the main specs file, since it would
1799 encourage people to overwrite it. */
1800 if (*p == '%' && !main_p)
1803 while (*p && *p != '\n')
1809 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1810 && (p1[sizeof "%include" - 1] == ' '
1811 || p1[sizeof "%include" - 1] == '\t'))
1815 p1 += sizeof ("%include");
1816 while (*p1 == ' ' || *p1 == '\t')
1819 if (*p1++ != '<' || p[-2] != '>')
1820 fatal ("specs %%include syntax malformed after %ld characters",
1821 (long) (p1 - buffer + 1));
1824 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1825 read_specs (new_filename ? new_filename : p1, FALSE);
1828 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1829 && (p1[sizeof "%include_noerr" - 1] == ' '
1830 || p1[sizeof "%include_noerr" - 1] == '\t'))
1834 p1 += sizeof "%include_noerr";
1835 while (*p1 == ' ' || *p1 == '\t')
1838 if (*p1++ != '<' || p[-2] != '>')
1839 fatal ("specs %%include syntax malformed after %ld characters",
1840 (long) (p1 - buffer + 1));
1843 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1845 read_specs (new_filename, FALSE);
1846 else if (verbose_flag)
1847 notice ("could not find specs file %s\n", p1);
1850 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1851 && (p1[sizeof "%rename" - 1] == ' '
1852 || p1[sizeof "%rename" - 1] == '\t'))
1855 struct spec_list *sl;
1857 /* Get original name */
1858 p1 += sizeof "%rename";
1859 while (*p1 == ' ' || *p1 == '\t')
1862 if (! ISALPHA ((unsigned char) *p1))
1863 fatal ("specs %%rename syntax malformed after %ld characters",
1864 (long) (p1 - buffer));
1867 while (*p2 && !ISSPACE ((unsigned char) *p2))
1870 if (*p2 != ' ' && *p2 != '\t')
1871 fatal ("specs %%rename syntax malformed after %ld characters",
1872 (long) (p2 - buffer));
1876 while (*p2 == ' ' || *p2 == '\t')
1879 if (! ISALPHA ((unsigned char) *p2))
1880 fatal ("specs %%rename syntax malformed after %ld characters",
1881 (long) (p2 - buffer));
1883 /* Get new spec name. */
1885 while (*p3 && !ISSPACE ((unsigned char) *p3))
1889 fatal ("specs %%rename syntax malformed after %ld characters",
1890 (long) (p3 - buffer));
1893 for (sl = specs; sl; sl = sl->next)
1894 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1898 fatal ("specs %s spec was not found to be renamed", p1);
1900 if (strcmp (p1, p2) == 0)
1905 notice ("rename spec %s to %s\n", p1, p2);
1907 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1911 set_spec (p2, *(sl->ptr_spec));
1913 free ((PTR) *(sl->ptr_spec));
1915 *(sl->ptr_spec) = "";
1920 fatal ("specs unknown %% command after %ld characters",
1921 (long) (p1 - buffer));
1924 /* Find the colon that should end the suffix. */
1926 while (*p1 && *p1 != ':' && *p1 != '\n')
1929 /* The colon shouldn't be missing. */
1931 fatal ("specs file malformed after %ld characters",
1932 (long) (p1 - buffer));
1934 /* Skip back over trailing whitespace. */
1936 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1939 /* Copy the suffix to a string. */
1940 suffix = save_string (p, p2 - p);
1941 /* Find the next line. */
1942 p = skip_whitespace (p1 + 1);
1944 fatal ("specs file malformed after %ld characters",
1945 (long) (p - buffer));
1948 /* Find next blank line or end of string. */
1949 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1952 /* Specs end at the blank line and do not include the newline. */
1953 spec = save_string (p, p1 - p);
1956 /* Delete backslash-newline sequences from the spec. */
1961 if (in[0] == '\\' && in[1] == '\n')
1963 else if (in[0] == '#')
1964 while (*in && *in != '\n')
1972 if (suffix[0] == '*')
1974 if (! strcmp (suffix, "*link_command"))
1975 link_command_spec = spec;
1977 set_spec (suffix + 1, spec);
1981 /* Add this pair to the vector. */
1983 = ((struct compiler *)
1984 xrealloc (compilers,
1985 (n_compilers + 2) * sizeof (struct compiler)));
1987 compilers[n_compilers].suffix = suffix;
1988 compilers[n_compilers].spec = spec;
1990 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1994 link_command_spec = spec;
1997 if (link_command_spec == 0)
1998 fatal ("spec file has no spec for linking");
2001 /* Record the names of temporary files we tell compilers to write,
2002 and delete them at the end of the run. */
2004 /* This is the common prefix we use to make temp file names.
2005 It is chosen once for each run of this program.
2006 It is substituted into a spec by %g or %j.
2007 Thus, all temp file names contain this prefix.
2008 In practice, all temp file names start with this prefix.
2010 This prefix comes from the envvar TMPDIR if it is defined;
2011 otherwise, from the P_tmpdir macro if that is defined;
2012 otherwise, in /usr/tmp or /tmp;
2013 or finally the current directory if all else fails. */
2015 static const char *temp_filename;
2017 /* Length of the prefix. */
2019 static int temp_filename_length;
2021 /* Define the list of temporary files to delete. */
2026 struct temp_file *next;
2029 /* Queue of files to delete on success or failure of compilation. */
2030 static struct temp_file *always_delete_queue;
2031 /* Queue of files to delete on failure of compilation. */
2032 static struct temp_file *failure_delete_queue;
2034 /* Record FILENAME as a file to be deleted automatically.
2035 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2036 otherwise delete it in any case.
2037 FAIL_DELETE nonzero means delete it if a compilation step fails;
2038 otherwise delete it in any case. */
2041 record_temp_file (filename, always_delete, fail_delete)
2042 const char *filename;
2046 char *const name = xstrdup (filename);
2050 struct temp_file *temp;
2051 for (temp = always_delete_queue; temp; temp = temp->next)
2052 if (! strcmp (name, temp->name))
2055 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
2056 temp->next = always_delete_queue;
2058 always_delete_queue = temp;
2065 struct temp_file *temp;
2066 for (temp = failure_delete_queue; temp; temp = temp->next)
2067 if (! strcmp (name, temp->name))
2070 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
2071 temp->next = failure_delete_queue;
2073 failure_delete_queue = temp;
2079 /* Delete all the temporary files whose names we previously recorded. */
2082 delete_if_ordinary (name)
2089 printf ("Delete %s? (y or n) ", name);
2093 while ((c = getchar ()) != '\n' && c != EOF)
2096 if (i == 'y' || i == 'Y')
2098 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
2099 if (unlink (name) < 0)
2101 perror_with_name (name);
2105 delete_temp_files ()
2107 struct temp_file *temp;
2109 for (temp = always_delete_queue; temp; temp = temp->next)
2110 delete_if_ordinary (temp->name);
2111 always_delete_queue = 0;
2114 /* Delete all the files to be deleted on error. */
2117 delete_failure_queue ()
2119 struct temp_file *temp;
2121 for (temp = failure_delete_queue; temp; temp = temp->next)
2122 delete_if_ordinary (temp->name);
2126 clear_failure_queue ()
2128 failure_delete_queue = 0;
2131 /* Build a list of search directories from PATHS.
2132 PREFIX is a string to prepend to the list.
2133 If CHECK_DIR_P is non-zero we ensure the directory exists.
2134 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2135 It is also used by the --print-search-dirs flag. */
2138 build_search_list (paths, prefix, check_dir_p)
2139 struct path_prefix *paths;
2143 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2145 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2146 int first_time = TRUE;
2147 struct prefix_list *pprefix;
2149 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2150 obstack_1grow (&collect_obstack, '=');
2152 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2154 int len = strlen (pprefix->prefix);
2158 || is_directory (pprefix->prefix, machine_suffix, 0)))
2161 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2164 obstack_grow (&collect_obstack, pprefix->prefix, len);
2165 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2168 if (just_machine_suffix
2169 && pprefix->require_machine_suffix == 2
2171 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2174 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2177 obstack_grow (&collect_obstack, pprefix->prefix, len);
2178 obstack_grow (&collect_obstack, just_machine_suffix,
2182 if (! pprefix->require_machine_suffix)
2185 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2188 obstack_grow (&collect_obstack, pprefix->prefix, len);
2192 obstack_1grow (&collect_obstack, '\0');
2193 return obstack_finish (&collect_obstack);
2196 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2200 putenv_from_prefixes (paths, env_var)
2201 struct path_prefix *paths;
2202 const char *env_var;
2204 putenv (build_search_list (paths, env_var, 1));
2209 /* FIXME: the location independence code for VMS is hairier than this,
2210 and hasn't been written. */
2212 /* Split a filename into component directories. */
2215 split_directories (name, ptr_num_dirs)
2224 /* Count the number of directories. Special case MSDOS disk names as part
2225 of the initial directory. */
2227 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2228 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2233 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2235 while ((ch = *p++) != '\0')
2237 if (IS_DIR_SEPARATOR (ch))
2240 while (IS_DIR_SEPARATOR (*p))
2245 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2247 /* Now copy the directory parts. */
2250 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2251 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2253 dirs[num_dirs++] = save_string (p, 3);
2256 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2259 while ((ch = *p++) != '\0')
2261 if (IS_DIR_SEPARATOR (ch))
2263 while (IS_DIR_SEPARATOR (*p))
2266 dirs[num_dirs++] = save_string (q, p - q);
2272 dirs[num_dirs++] = save_string (q, p - 1 - q);
2274 dirs[num_dirs] = NULL;
2276 *ptr_num_dirs = num_dirs;
2281 /* Release storage held by split directories. */
2284 free_split_directories (dirs)
2289 while (dirs[i] != NULL)
2292 free ((char *) dirs);
2295 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2296 to PREFIX starting with the directory portion of PROGNAME and a relative
2297 pathname of the difference between BIN_PREFIX and PREFIX.
2299 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2300 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2301 function will return /red/green/blue/../omega.
2303 If no relative prefix can be found, return NULL. */
2306 make_relative_prefix (progname, bin_prefix, prefix)
2307 const char *progname;
2308 const char *bin_prefix;
2311 char **prog_dirs, **bin_dirs, **prefix_dirs;
2312 int prog_num, bin_num, prefix_num, std_loc_p;
2315 prog_dirs = split_directories (progname, &prog_num);
2316 bin_dirs = split_directories (bin_prefix, &bin_num);
2318 /* If there is no full pathname, try to find the program by checking in each
2319 of the directories specified in the PATH environment variable. */
2324 GET_ENV_PATH_LIST (temp, "PATH");
2327 char *startp, *endp, *nstore;
2328 size_t prefixlen = strlen (temp) + 1;
2332 nstore = (char *) alloca (prefixlen + strlen (progname) + 1);
2334 startp = endp = temp;
2337 if (*endp == PATH_SEPARATOR || *endp == 0)
2342 nstore[1] = DIR_SEPARATOR;
2347 strncpy (nstore, startp, endp - startp);
2348 if (! IS_DIR_SEPARATOR (endp[-1]))
2350 nstore[endp - startp] = DIR_SEPARATOR;
2351 nstore[endp - startp + 1] = 0;
2354 nstore[endp - startp] = 0;
2356 strcat (nstore, progname);
2357 if (! access (nstore, X_OK)
2358 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2359 || ! access (strcat (nstore, HOST_EXECUTABLE_SUFFIX), X_OK)
2363 free_split_directories (prog_dirs);
2365 prog_dirs = split_directories (progname, &prog_num);
2371 endp = startp = endp + 1;
2379 /* Remove the program name from comparison of directory names. */
2382 /* Determine if the compiler is installed in the standard location, and if
2383 so, we don't need to specify relative directories. Also, if argv[0]
2384 doesn't contain any directory specifiers, there is not much we can do. */
2386 if (prog_num == bin_num)
2388 for (i = 0; i < bin_num; i++)
2390 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2394 if (prog_num <= 0 || i == bin_num)
2397 free_split_directories (prog_dirs);
2398 free_split_directories (bin_dirs);
2399 prog_dirs = bin_dirs = (char **) 0;
2404 prefix_dirs = split_directories (prefix, &prefix_num);
2406 /* Find how many directories are in common between bin_prefix & prefix. */
2407 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2408 for (common = 0; common < n; common++)
2410 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2414 /* If there are no common directories, there can be no relative prefix. */
2417 free_split_directories (prog_dirs);
2418 free_split_directories (bin_dirs);
2419 free_split_directories (prefix_dirs);
2423 /* Build up the pathnames in argv[0]. */
2424 for (i = 0; i < prog_num; i++)
2425 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2427 /* Now build up the ..'s. */
2428 for (i = common; i < n; i++)
2430 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2431 obstack_1grow (&obstack, DIR_SEPARATOR);
2434 /* Put in directories to move over to prefix. */
2435 for (i = common; i < prefix_num; i++)
2436 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2438 free_split_directories (prog_dirs);
2439 free_split_directories (bin_dirs);
2440 free_split_directories (prefix_dirs);
2442 obstack_1grow (&obstack, '\0');
2443 return obstack_finish (&obstack);
2447 /* Check whether NAME can be accessed in MODE. This is like access,
2448 except that it never considers directories to be executable. */
2451 access_check (name, mode)
2459 if (stat (name, &st) < 0
2460 || S_ISDIR (st.st_mode))
2464 return access (name, mode);
2467 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2468 access to check permissions.
2469 Return 0 if not found, otherwise return its name, allocated with malloc. */
2472 find_a_file (pprefix, name, mode)
2473 struct path_prefix *pprefix;
2478 const char *const file_suffix =
2479 ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
2480 struct prefix_list *pl;
2481 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2483 #ifdef DEFAULT_ASSEMBLER
2484 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2485 return xstrdup (DEFAULT_ASSEMBLER);
2488 #ifdef DEFAULT_LINKER
2489 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2490 return xstrdup (DEFAULT_LINKER);
2494 len += strlen (machine_suffix);
2496 temp = xmalloc (len);
2498 /* Determine the filename to execute (special case for absolute paths). */
2500 if (IS_ABSOLUTE_PATHNAME (name))
2502 if (access (name, mode) == 0)
2504 strcpy (temp, name);
2509 for (pl = pprefix->plist; pl; pl = pl->next)
2513 /* Some systems have a suffix for executable files.
2514 So try appending that first. */
2515 if (file_suffix[0] != 0)
2517 strcpy (temp, pl->prefix);
2518 strcat (temp, machine_suffix);
2519 strcat (temp, name);
2520 strcat (temp, file_suffix);
2521 if (access_check (temp, mode) == 0)
2523 if (pl->used_flag_ptr != 0)
2524 *pl->used_flag_ptr = 1;
2529 /* Now try just the name. */
2530 strcpy (temp, pl->prefix);
2531 strcat (temp, machine_suffix);
2532 strcat (temp, name);
2533 if (access_check (temp, mode) == 0)
2535 if (pl->used_flag_ptr != 0)
2536 *pl->used_flag_ptr = 1;
2541 /* Certain prefixes are tried with just the machine type,
2542 not the version. This is used for finding as, ld, etc. */
2543 if (just_machine_suffix && pl->require_machine_suffix == 2)
2545 /* Some systems have a suffix for executable files.
2546 So try appending that first. */
2547 if (file_suffix[0] != 0)
2549 strcpy (temp, pl->prefix);
2550 strcat (temp, just_machine_suffix);
2551 strcat (temp, name);
2552 strcat (temp, file_suffix);
2553 if (access_check (temp, mode) == 0)
2555 if (pl->used_flag_ptr != 0)
2556 *pl->used_flag_ptr = 1;
2561 strcpy (temp, pl->prefix);
2562 strcat (temp, just_machine_suffix);
2563 strcat (temp, name);
2564 if (access_check (temp, mode) == 0)
2566 if (pl->used_flag_ptr != 0)
2567 *pl->used_flag_ptr = 1;
2572 /* Certain prefixes can't be used without the machine suffix
2573 when the machine or version is explicitly specified. */
2574 if (! pl->require_machine_suffix)
2576 /* Some systems have a suffix for executable files.
2577 So try appending that first. */
2578 if (file_suffix[0] != 0)
2580 strcpy (temp, pl->prefix);
2581 strcat (temp, name);
2582 strcat (temp, file_suffix);
2583 if (access_check (temp, mode) == 0)
2585 if (pl->used_flag_ptr != 0)
2586 *pl->used_flag_ptr = 1;
2591 strcpy (temp, pl->prefix);
2592 strcat (temp, name);
2593 if (access_check (temp, mode) == 0)
2595 if (pl->used_flag_ptr != 0)
2596 *pl->used_flag_ptr = 1;
2606 /* Ranking of prefixes in the sort list. -B prefixes are put before
2609 enum path_prefix_priority
2611 PREFIX_PRIORITY_B_OPT,
2612 PREFIX_PRIORITY_LAST
2615 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2616 order according to PRIORITY. Within each PRIORITY, new entries are
2619 If WARN is nonzero, we will warn if no file is found
2620 through this prefix. WARN should point to an int
2621 which will be set to 1 if this entry is used.
2623 COMPONENT is the value to be passed to update_path.
2625 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2626 the complete value of machine_suffix.
2627 2 means try both machine_suffix and just_machine_suffix. */
2630 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2631 struct path_prefix *pprefix;
2633 const char *component;
2634 /* enum prefix_priority */ int priority;
2635 int require_machine_suffix;
2638 struct prefix_list *pl, **prev;
2641 for (prev = &pprefix->plist;
2642 (*prev) != NULL && (*prev)->priority <= priority;
2643 prev = &(*prev)->next)
2646 /* Keep track of the longest prefix */
2648 prefix = update_path (prefix, component);
2649 len = strlen (prefix);
2650 if (len > pprefix->max_len)
2651 pprefix->max_len = len;
2653 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2654 pl->prefix = prefix;
2655 pl->require_machine_suffix = require_machine_suffix;
2656 pl->used_flag_ptr = warn;
2657 pl->priority = priority;
2661 /* Insert after PREV */
2666 /* Execute the command specified by the arguments on the current line of spec.
2667 When using pipes, this includes several piped-together commands
2668 with `|' between them.
2670 Return 0 if successful, -1 if failed. */
2676 int n_commands; /* # of command. */
2680 const char *prog; /* program name. */
2681 const char **argv; /* vector of args. */
2682 int pid; /* pid of process for this command. */
2685 struct command *commands; /* each command buffer with above info. */
2687 /* Count # of piped commands. */
2688 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2689 if (strcmp (argbuf[i], "|") == 0)
2692 /* Get storage for each command. */
2693 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2695 /* Split argbuf into its separate piped processes,
2696 and record info about each one.
2697 Also search for the programs that are to be run. */
2699 commands[0].prog = argbuf[0]; /* first command. */
2700 commands[0].argv = &argbuf[0];
2701 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2704 commands[0].argv[0] = string;
2706 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2707 if (strcmp (argbuf[i], "|") == 0)
2708 { /* each command. */
2709 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2710 fatal ("-pipe not supported");
2712 argbuf[i] = 0; /* termination of command args. */
2713 commands[n_commands].prog = argbuf[i + 1];
2714 commands[n_commands].argv = &argbuf[i + 1];
2715 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2717 commands[n_commands].argv[0] = string;
2721 argbuf[argbuf_index] = 0;
2723 /* If -v, print what we are about to do, and maybe query. */
2727 /* For help listings, put a blank line between sub-processes. */
2728 if (print_help_list)
2729 fputc ('\n', stderr);
2731 /* Print each piped command as a separate line. */
2732 for (i = 0; i < n_commands; i++)
2734 const char *const *j;
2736 if (verbose_only_flag)
2738 for (j = commands[i].argv; *j; j++)
2741 fprintf (stderr, " \"");
2742 for (p = *j; *p; ++p)
2744 if (*p == '"' || *p == '\\' || *p == '$')
2745 fputc ('\\', stderr);
2748 fputc ('"', stderr);
2752 for (j = commands[i].argv; *j; j++)
2753 fprintf (stderr, " %s", *j);
2755 /* Print a pipe symbol after all but the last command. */
2756 if (i + 1 != n_commands)
2757 fprintf (stderr, " |");
2758 fprintf (stderr, "\n");
2761 if (verbose_only_flag != 0)
2764 notice ("\nGo ahead? (y or n) ");
2768 while (getchar () != '\n')
2771 if (i != 'y' && i != 'Y')
2776 /* Run each piped subprocess. */
2778 for (i = 0; i < n_commands; i++)
2780 char *errmsg_fmt, *errmsg_arg;
2781 const char *string = commands[i].argv[0];
2783 /* For some bizarre reason, the second argument of execvp() is
2784 char *const *, not const char *const *. */
2785 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2786 programname, temp_filename,
2787 &errmsg_fmt, &errmsg_arg,
2788 ((i == 0 ? PEXECUTE_FIRST : 0)
2789 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2790 | (string == commands[i].prog
2791 ? PEXECUTE_SEARCH : 0)
2792 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2794 if (commands[i].pid == -1)
2795 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2797 if (string != commands[i].prog)
2798 free ((PTR) string);
2803 /* Wait for all the subprocesses to finish.
2804 We don't care what order they finish in;
2805 we know that N_COMMANDS waits will get them all.
2806 Ignore subprocesses that we don't know about,
2807 since they can be spawned by the process that exec'ed us. */
2811 #ifdef HAVE_GETRUSAGE
2813 double ut = 0.0, st = 0.0;
2816 for (i = 0; i < n_commands;)
2822 pid = pwait (commands[i].pid, &status, 0);
2826 #ifdef HAVE_GETRUSAGE
2829 /* getrusage returns the total resource usage of all children
2830 up to now. Copy the previous values into prus, get the
2831 current statistics, then take the difference. */
2834 getrusage (RUSAGE_CHILDREN, &rus);
2835 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2836 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2837 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2839 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2840 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2841 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2845 for (j = 0; j < n_commands; j++)
2846 if (commands[j].pid == pid)
2849 if (WIFSIGNALED (status))
2852 /* SIGPIPE is a special case. It happens in -pipe mode
2853 when the compiler dies before the preprocessor is
2854 done, or the assembler dies before the compiler is
2855 done. There's generally been an error already, and
2856 this is just fallout. So don't generate another error
2857 unless we would otherwise have succeeded. */
2858 if (WTERMSIG (status) == SIGPIPE
2859 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2864 Internal error: %s (program %s)\n\
2865 Please submit a full bug report.\n\
2866 See %s for instructions.",
2867 strsignal (WTERMSIG (status)), commands[j].prog,
2872 else if (WIFEXITED (status)
2873 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2875 if (WEXITSTATUS (status) > greatest_status)
2876 greatest_status = WEXITSTATUS (status);
2879 #ifdef HAVE_GETRUSAGE
2880 if (report_times && ut + st != 0)
2881 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2890 /* Find all the switches given to us
2891 and make a vector describing them.
2892 The elements of the vector are strings, one per switch given.
2893 If a switch uses following arguments, then the `part1' field
2894 is the switch itself and the `args' field
2895 is a null-terminated vector containing the following arguments.
2896 The `live_cond' field is:
2898 1 if the switch is true in a conditional spec,
2899 -1 if false (overridden by a later switch)
2900 -2 if this switch should be ignored (used in %{<S})
2901 The `validated' field is nonzero if any spec has looked at this switch;
2902 if it remains zero at the end of the run, it must be meaningless. */
2905 #define SWITCH_FALSE -1
2906 #define SWITCH_IGNORE -2
2907 #define SWITCH_LIVE 1
2914 unsigned char validated;
2915 unsigned char ordering;
2918 static struct switchstr *switches;
2920 static int n_switches;
2925 const char *language;
2928 /* Also a vector of input files specified. */
2930 static struct infile *infiles;
2934 /* This counts the number of libraries added by lang_specific_driver, so that
2935 we can tell if there were any user supplied any files or libraries. */
2937 static int added_libraries;
2939 /* And a vector of corresponding output files is made up later. */
2941 const char **outfiles;
2943 /* Used to track if none of the -B paths are used. */
2946 /* Used to track if standard path isn't used and -b or -V is specified. */
2947 static int warn_std;
2949 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2950 static int *warn_std_ptr = 0;
2952 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2954 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2955 is true if we should look for an executable suffix. DO_OBJ
2956 is true if we should look for an object suffix. */
2959 convert_filename (name, do_exe, do_obj)
2961 int do_exe ATTRIBUTE_UNUSED;
2962 int do_obj ATTRIBUTE_UNUSED;
2964 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2972 len = strlen (name);
2974 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2975 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2976 if (do_obj && len > 2
2977 && name[len - 2] == '.'
2978 && name[len - 1] == 'o')
2980 obstack_grow (&obstack, name, len - 2);
2981 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
2982 name = obstack_finish (&obstack);
2986 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2987 /* If there is no filetype, make it the executable suffix (which includes
2988 the "."). But don't get confused if we have just "-o". */
2989 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2992 for (i = len - 1; i >= 0; i--)
2993 if (IS_DIR_SEPARATOR (name[i]))
2996 for (i++; i < len; i++)
3000 obstack_grow (&obstack, name, len);
3001 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3002 strlen (TARGET_EXECUTABLE_SUFFIX));
3003 name = obstack_finish (&obstack);
3010 /* Display the command line switches accepted by gcc. */
3014 printf (_("Usage: %s [options] file...\n"), programname);
3015 fputs (_("Options:\n"), stdout);
3017 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3018 fputs (_(" --help Display this information\n"), stdout);
3019 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3021 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3022 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3023 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3024 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3025 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3026 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3027 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3028 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3029 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3031 -print-multi-lib Display the mapping between command line options and\n\
3032 multiple library search directories\n"), stdout);
3033 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3034 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3035 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3036 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3037 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3038 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3039 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3040 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
3041 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3042 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3043 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3044 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3045 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3046 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3047 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3048 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3049 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3050 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3052 -x <language> Specify the language of the following input files\n\
3053 Permissable languages include: c c++ assembler none\n\
3054 'none' means revert to the default behaviour of\n\
3055 guessing the language based on the file's extension\n\
3059 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3060 passed on to the various sub-processes invoked by %s. In order to pass\n\
3061 other options on to these processes the -W<letter> options must be used.\n\
3064 /* The rest of the options are displayed by invocations of the various
3069 add_preprocessor_option (option, len)
3073 n_preprocessor_options++;
3075 if (! preprocessor_options)
3076 preprocessor_options
3077 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
3079 preprocessor_options
3080 = (char **) xrealloc (preprocessor_options,
3081 n_preprocessor_options * sizeof (char *));
3083 preprocessor_options [n_preprocessor_options - 1] =
3084 save_string (option, len);
3088 add_assembler_option (option, len)
3092 n_assembler_options++;
3094 if (! assembler_options)
3096 = (char **) xmalloc (n_assembler_options * sizeof (char *));
3099 = (char **) xrealloc (assembler_options,
3100 n_assembler_options * sizeof (char *));
3102 assembler_options [n_assembler_options - 1] = save_string (option, len);
3106 add_linker_option (option, len)
3112 if (! linker_options)
3114 = (char **) xmalloc (n_linker_options * sizeof (char *));
3117 = (char **) xrealloc (linker_options,
3118 n_linker_options * sizeof (char *));
3120 linker_options [n_linker_options - 1] = save_string (option, len);
3123 /* Create the vector `switches' and its contents.
3124 Store its length in `n_switches'. */
3127 process_command (argc, argv)
3129 const char *const *argv;
3134 const char *spec_lang = 0;
3135 int last_language_n_infiles;
3138 int lang_n_infiles = 0;
3139 #ifdef MODIFY_TARGET_NAME
3140 int is_modify_target_name;
3144 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3148 added_libraries = 0;
3150 /* Figure compiler version from version string. */
3152 compiler_version = temp1 = xstrdup (version_string);
3154 for (; *temp1; ++temp1)
3163 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3164 see if we can create it from the pathname specified in argv[0]. */
3167 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3168 if (!gcc_exec_prefix)
3170 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3171 standard_exec_prefix);
3172 if (gcc_exec_prefix)
3173 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3177 if (gcc_exec_prefix)
3179 int len = strlen (gcc_exec_prefix);
3181 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
3182 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3184 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
3185 if (IS_DIR_SEPARATOR (*temp)
3186 && strncmp (temp + 1, "lib", 3) == 0
3187 && IS_DIR_SEPARATOR (temp[4])
3188 && strncmp (temp + 5, "gcc-lib", 7) == 0)
3189 len -= sizeof ("/lib/gcc-lib/") - 1;
3192 set_std_prefix (gcc_exec_prefix, len);
3193 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
3194 PREFIX_PRIORITY_LAST, 0, NULL);
3195 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3196 PREFIX_PRIORITY_LAST, 0, NULL);
3199 /* COMPILER_PATH and LIBRARY_PATH have values
3200 that are lists of directory names with colons. */
3202 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
3205 const char *startp, *endp;
3206 char *nstore = (char *) alloca (strlen (temp) + 3);
3208 startp = endp = temp;
3211 if (*endp == PATH_SEPARATOR || *endp == 0)
3213 strncpy (nstore, startp, endp - startp);
3215 strcpy (nstore, concat (".", dir_separator_str, NULL));
3216 else if (!IS_DIR_SEPARATOR (endp[-1]))
3218 nstore[endp - startp] = DIR_SEPARATOR;
3219 nstore[endp - startp + 1] = 0;
3222 nstore[endp - startp] = 0;
3223 add_prefix (&exec_prefixes, nstore, 0,
3224 PREFIX_PRIORITY_LAST, 0, NULL);
3225 add_prefix (&include_prefixes,
3226 concat (nstore, "include", NULL),
3227 0, PREFIX_PRIORITY_LAST, 0, NULL);
3230 endp = startp = endp + 1;
3237 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
3238 if (temp && *cross_compile == '0')
3240 const char *startp, *endp;
3241 char *nstore = (char *) alloca (strlen (temp) + 3);
3243 startp = endp = temp;
3246 if (*endp == PATH_SEPARATOR || *endp == 0)
3248 strncpy (nstore, startp, endp - startp);
3250 strcpy (nstore, concat (".", dir_separator_str, NULL));
3251 else if (!IS_DIR_SEPARATOR (endp[-1]))
3253 nstore[endp - startp] = DIR_SEPARATOR;
3254 nstore[endp - startp + 1] = 0;
3257 nstore[endp - startp] = 0;
3258 add_prefix (&startfile_prefixes, nstore, NULL,
3259 PREFIX_PRIORITY_LAST, 0, NULL);
3262 endp = startp = endp + 1;
3269 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3270 GET_ENV_PATH_LIST (temp, "LPATH");
3271 if (temp && *cross_compile == '0')
3273 const char *startp, *endp;
3274 char *nstore = (char *) alloca (strlen (temp) + 3);
3276 startp = endp = temp;
3279 if (*endp == PATH_SEPARATOR || *endp == 0)
3281 strncpy (nstore, startp, endp - startp);
3283 strcpy (nstore, concat (".", dir_separator_str, NULL));
3284 else if (!IS_DIR_SEPARATOR (endp[-1]))
3286 nstore[endp - startp] = DIR_SEPARATOR;
3287 nstore[endp - startp + 1] = 0;
3290 nstore[endp - startp] = 0;
3291 add_prefix (&startfile_prefixes, nstore, NULL,
3292 PREFIX_PRIORITY_LAST, 0, NULL);
3295 endp = startp = endp + 1;
3302 /* Convert new-style -- options to old-style. */
3303 translate_options (&argc, &argv);
3305 /* Do language-specific adjustment/addition of flags. */
3306 lang_specific_driver (&argc, &argv, &added_libraries);
3308 /* Scan argv twice. Here, the first time, just count how many switches
3309 there will be in their vector, and how many input files in theirs.
3310 Also parse any switches that determine the configuration name, such as -b.
3311 Here we also parse the switches that cc itself uses (e.g. -v). */
3313 for (i = 1; i < argc; i++)
3315 if (! strcmp (argv[i], "-dumpspecs"))
3317 struct spec_list *sl;
3319 for (sl = specs; sl; sl = sl->next)
3320 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3321 if (link_command_spec)
3322 printf ("*link_command:\n%s\n\n", link_command_spec);
3325 else if (! strcmp (argv[i], "-dumpversion"))
3327 printf ("%s\n", spec_version);
3330 else if (! strcmp (argv[i], "-dumpmachine"))
3332 printf ("%s\n", spec_machine);
3335 else if (strcmp (argv[i], "-fhelp") == 0)
3337 /* translate_options () has turned --help into -fhelp. */
3338 print_help_list = 1;
3340 /* We will be passing a dummy file on to the sub-processes. */
3344 /* CPP driver cannot obtain switch from cc1_options. */
3346 add_preprocessor_option ("--help", 6);
3347 add_assembler_option ("--help", 6);
3348 add_linker_option ("--help", 6);
3350 else if (strcmp (argv[i], "-ftarget-help") == 0)
3352 /* translate_options() has turned --target-help into -ftarget-help. */
3353 target_help_flag = 1;
3355 /* We will be passing a dummy file on to the sub-processes. */
3359 /* CPP driver cannot obtain switch from cc1_options. */
3361 add_preprocessor_option ("--target-help", 13);
3362 add_assembler_option ("--target-help", 13);
3363 add_linker_option ("--target-help", 13);
3365 else if (! strcmp (argv[i], "-pass-exit-codes"))
3367 pass_exit_codes = 1;
3370 else if (! strcmp (argv[i], "-print-search-dirs"))
3371 print_search_dirs = 1;
3372 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3373 print_file_name = "libgcc.a";
3374 else if (! strncmp (argv[i], "-print-file-name=", 17))
3375 print_file_name = argv[i] + 17;
3376 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3377 print_prog_name = argv[i] + 17;
3378 else if (! strcmp (argv[i], "-print-multi-lib"))
3379 print_multi_lib = 1;
3380 else if (! strcmp (argv[i], "-print-multi-directory"))
3381 print_multi_directory = 1;
3382 else if (! strncmp (argv[i], "-Wa,", 4))
3385 /* Pass the rest of this option to the assembler. */
3387 /* Split the argument at commas. */
3389 for (j = 4; argv[i][j]; j++)
3390 if (argv[i][j] == ',')
3392 add_assembler_option (argv[i] + prev, j - prev);
3396 /* Record the part after the last comma. */
3397 add_assembler_option (argv[i] + prev, j - prev);
3399 else if (! strncmp (argv[i], "-Wp,", 4))
3402 /* Pass the rest of this option to the preprocessor. */
3404 /* Split the argument at commas. */
3406 for (j = 4; argv[i][j]; j++)
3407 if (argv[i][j] == ',')
3409 add_preprocessor_option (argv[i] + prev, j - prev);
3413 /* Record the part after the last comma. */
3414 add_preprocessor_option (argv[i] + prev, j - prev);
3416 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3417 /* The +e options to the C++ front-end. */
3419 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3422 /* Split the argument at commas. */
3423 for (j = 3; argv[i][j]; j++)
3424 n_infiles += (argv[i][j] == ',');
3426 else if (strcmp (argv[i], "-Xlinker") == 0)
3429 fatal ("argument to `-Xlinker' is missing");
3434 else if (strcmp (argv[i], "-l") == 0)
3437 fatal ("argument to `-l' is missing");
3442 else if (strncmp (argv[i], "-l", 2) == 0)
3444 else if (strcmp (argv[i], "-save-temps") == 0)
3446 save_temps_flag = 1;
3449 else if (strcmp (argv[i], "-specs") == 0)
3451 struct user_specs *user = (struct user_specs *)
3452 xmalloc (sizeof (struct user_specs));
3454 fatal ("argument to `-specs' is missing");
3456 user->next = (struct user_specs *) 0;
3457 user->filename = argv[i];
3458 if (user_specs_tail)
3459 user_specs_tail->next = user;
3461 user_specs_head = user;
3462 user_specs_tail = user;
3464 else if (strncmp (argv[i], "-specs=", 7) == 0)
3466 struct user_specs *user = (struct user_specs *)
3467 xmalloc (sizeof (struct user_specs));
3468 if (strlen (argv[i]) == 7)
3469 fatal ("argument to `-specs=' is missing");
3471 user->next = (struct user_specs *) 0;
3472 user->filename = argv[i] + 7;
3473 if (user_specs_tail)
3474 user_specs_tail->next = user;
3476 user_specs_head = user;
3477 user_specs_tail = user;
3479 else if (strcmp (argv[i], "-time") == 0)
3481 else if (strcmp (argv[i], "-###") == 0)
3483 /* This is similar to -v except that there is no execution
3484 of the commands and the echoed arguments are quoted. It
3485 is intended for use in shell scripts to capture the
3486 driver-generated command line. */
3487 verbose_only_flag++;
3490 else if (argv[i][0] == '-' && argv[i][1] != 0)
3492 const char *p = &argv[i][1];
3499 if (p[1] == 0 && i + 1 == argc)
3500 fatal ("argument to `-b' is missing");
3502 spec_machine = argv[++i];
3504 spec_machine = p + 1;
3506 warn_std_ptr = &warn_std;
3514 if (p[1] == 0 && i + 1 == argc)
3515 fatal ("argument to `-B' is missing");
3521 len = strlen (value);
3523 /* Catch the case where the user has forgotten to append a
3524 directory separator to the path. Note, they may be using
3525 -B to add an executable name prefix, eg "i386-elf-", in
3526 order to distinguish between multiple installations of
3527 GCC in the same directory. Hence we must check to see
3528 if appending a directory separator actually makes a
3529 valid directory name. */
3530 if (! IS_DIR_SEPARATOR (value [len - 1])
3531 && is_directory (value, "", 0))
3533 char *tmp = xmalloc (len + 2);
3534 strcpy (tmp, value);
3535 tmp[len] = DIR_SEPARATOR;
3540 /* As a kludge, if the arg is "[foo/]stageN/", just
3541 add "[foo/]include" to the include prefix. */
3544 && (IS_DIR_SEPARATOR (value[len - 8]))))
3545 && strncmp (value + len - 7, "stage", 5) == 0
3546 && ISDIGIT (value[len - 2])
3547 && (IS_DIR_SEPARATOR (value[len - 1])))
3550 add_prefix (&include_prefixes, "include", NULL,
3551 PREFIX_PRIORITY_B_OPT, 0, NULL);
3554 char * string = xmalloc (len + 1);
3556 strncpy (string, value, len - 7);
3557 strcpy (string + len - 7, "include");
3558 add_prefix (&include_prefixes, string, NULL,
3559 PREFIX_PRIORITY_B_OPT, 0, NULL);
3563 add_prefix (&exec_prefixes, value, NULL,
3564 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3565 add_prefix (&startfile_prefixes, value, NULL,
3566 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3567 add_prefix (&include_prefixes, concat (value, "include", NULL),
3568 NULL, PREFIX_PRIORITY_B_OPT, 0, NULL);
3573 case 'v': /* Print our subcommands and print versions. */
3575 /* If they do anything other than exactly `-v', don't set
3576 verbose_flag; rather, continue on to give the error. */
3584 if (p[1] == 0 && i + 1 == argc)
3585 fatal ("argument to `-V' is missing");
3587 spec_version = argv[++i];
3589 spec_version = p + 1;
3590 compiler_version = spec_version;
3591 warn_std_ptr = &warn_std;
3593 /* Validate the version number. Use the same checks
3594 done when inserting it into a spec.
3596 The format of the version string is
3597 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3599 const char *v = compiler_version;
3601 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3602 while (! ISDIGIT (*v))
3605 if (v > compiler_version && v[-1] != '-')
3606 fatal ("invalid version number format");
3608 /* Set V after the first period. */
3609 while (ISDIGIT (*v))
3613 fatal ("invalid version number format");
3616 while (ISDIGIT (*v))
3619 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3620 fatal ("invalid version number format");
3636 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3641 /* Forward scan, just in case -S or -c is specified
3648 if (argv[j][0] == '-')
3650 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3656 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3657 j += skip - (argv[j][2] != 0);
3658 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3665 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3667 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3669 argv[i] = convert_filename (argv[i], ! have_c, 0);
3676 #ifdef MODIFY_TARGET_NAME
3677 is_modify_target_name = 0;
3680 j < sizeof modify_target / sizeof modify_target[0]; j++)
3681 if (! strcmp (argv[i], modify_target[j].sw))
3684 = (char *) xmalloc (strlen (modify_target[j].str)
3685 + strlen (spec_machine));
3688 int made_addition = 0;
3690 is_modify_target_name = 1;
3691 for (p = spec_machine, q = new_name; *p != 0; )
3693 if (modify_target[j].add_del == DELETE
3694 && (! strncmp (q, modify_target[j].str,
3695 strlen (modify_target[j].str))))
3696 p += strlen (modify_target[j].str);
3697 else if (modify_target[j].add_del == ADD
3698 && ! made_addition && *p == '-')
3700 for (r = modify_target[j].str; *r != 0; )
3708 spec_machine = new_name;
3711 if (is_modify_target_name)
3717 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3718 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3719 else if (WORD_SWITCH_TAKES_ARG (p))
3720 i += WORD_SWITCH_TAKES_ARG (p);
3730 if (have_c && have_o && lang_n_infiles > 1)
3731 fatal ("cannot specify -o with -c or -S and multiple compilations");
3733 /* Set up the search paths before we go looking for config files. */
3735 /* These come before the md prefixes so that we will find gcc's subcommands
3736 (such as cpp) rather than those of the host system. */
3737 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3738 as well as trying the machine and the version. */
3740 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3741 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3742 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3743 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3744 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3745 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3748 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3749 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3750 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3751 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3753 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3754 dir_separator_str, NULL);
3756 /* If tooldir is relative, base it on exec_prefixes. A relative
3757 tooldir lets us move the installed tree as a unit.
3759 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3760 directories, so that we can search both the user specified directory
3761 and the standard place. */
3763 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3765 if (gcc_exec_prefix)
3767 char *gcc_exec_tooldir_prefix
3768 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3769 spec_version, dir_separator_str, tooldir_prefix, NULL);
3771 add_prefix (&exec_prefixes,
3772 concat (gcc_exec_tooldir_prefix, "bin",
3773 dir_separator_str, NULL),
3774 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3775 add_prefix (&startfile_prefixes,
3776 concat (gcc_exec_tooldir_prefix, "lib",
3777 dir_separator_str, NULL),
3778 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3781 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3782 dir_separator_str, spec_version,
3783 dir_separator_str, tooldir_prefix, NULL);
3786 add_prefix (&exec_prefixes,
3787 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3788 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3789 add_prefix (&startfile_prefixes,
3790 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3791 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3793 /* More prefixes are enabled in main, after we read the specs file
3794 and determine whether this is cross-compilation or not. */
3796 /* Then create the space for the vectors and scan again. */
3798 switches = ((struct switchstr *)
3799 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3800 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3803 last_language_n_infiles = -1;
3805 /* This, time, copy the text of each switch and store a pointer
3806 to the copy in the vector of switches.
3807 Store all the infiles in their vector. */
3809 for (i = 1; i < argc; i++)
3811 /* Just skip the switches that were handled by the preceding loop. */
3812 #ifdef MODIFY_TARGET_NAME
3813 is_modify_target_name = 0;
3815 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3816 if (! strcmp (argv[i], modify_target[j].sw))
3817 is_modify_target_name = 1;
3819 if (is_modify_target_name)
3823 if (! strncmp (argv[i], "-Wa,", 4))
3825 else if (! strncmp (argv[i], "-Wp,", 4))
3827 else if (! strcmp (argv[i], "-pass-exit-codes"))
3829 else if (! strcmp (argv[i], "-print-search-dirs"))
3831 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3833 else if (! strncmp (argv[i], "-print-file-name=", 17))
3835 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3837 else if (! strcmp (argv[i], "-print-multi-lib"))
3839 else if (! strcmp (argv[i], "-print-multi-directory"))
3841 else if (! strcmp (argv[i], "-ftarget-help"))
3843 else if (! strcmp (argv[i], "-fhelp"))
3845 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3847 /* Compensate for the +e options to the C++ front-end;
3848 they're there simply for cfront call-compatibility. We do
3849 some magic in default_compilers to pass them down properly.
3850 Note we deliberately start at the `+' here, to avoid passing
3851 -e0 or -e1 down into the linker. */
3852 switches[n_switches].part1 = &argv[i][0];
3853 switches[n_switches].args = 0;
3854 switches[n_switches].live_cond = SWITCH_OK;
3855 switches[n_switches].validated = 0;
3858 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3861 /* Split the argument at commas. */
3863 for (j = 4; argv[i][j]; j++)
3864 if (argv[i][j] == ',')
3866 infiles[n_infiles].language = "*";
3867 infiles[n_infiles++].name
3868 = save_string (argv[i] + prev, j - prev);
3871 /* Record the part after the last comma. */
3872 infiles[n_infiles].language = "*";
3873 infiles[n_infiles++].name = argv[i] + prev;
3875 else if (strcmp (argv[i], "-Xlinker") == 0)
3877 infiles[n_infiles].language = "*";
3878 infiles[n_infiles++].name = argv[++i];
3880 else if (strcmp (argv[i], "-l") == 0)
3881 { /* POSIX allows separation of -l and the lib arg;
3882 canonicalize by concatenating -l with its arg */
3883 infiles[n_infiles].language = "*";
3884 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
3886 else if (strncmp (argv[i], "-l", 2) == 0)
3888 infiles[n_infiles].language = "*";
3889 infiles[n_infiles++].name = argv[i];
3891 else if (strcmp (argv[i], "-specs") == 0)
3893 else if (strncmp (argv[i], "-specs=", 7) == 0)
3895 else if (strcmp (argv[i], "-time") == 0)
3897 else if ((save_temps_flag || report_times)
3898 && strcmp (argv[i], "-pipe") == 0)
3900 /* -save-temps overrides -pipe, so that temp files are produced */
3901 if (save_temps_flag)
3902 error ("warning: -pipe ignored because -save-temps specified");
3903 /* -time overrides -pipe because we can't get correct stats when
3904 multiple children are running at once. */
3905 else if (report_times)
3906 error ("warning: -pipe ignored because -time specified");
3908 else if (strcmp (argv[i], "-###") == 0)
3910 else if (argv[i][0] == '-' && argv[i][1] != 0)
3912 const char *p = &argv[i][1];
3917 if (p[1] == 0 && i + 1 == argc)
3918 fatal ("argument to `-x' is missing");
3920 spec_lang = argv[++i];
3923 if (! strcmp (spec_lang, "none"))
3924 /* Suppress the warning if -xnone comes after the last input
3925 file, because alternate command interfaces like g++ might
3926 find it useful to place -xnone after each input file. */
3929 last_language_n_infiles = n_infiles;
3932 switches[n_switches].part1 = p;
3933 /* Deal with option arguments in separate argv elements. */
3934 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3935 || WORD_SWITCH_TAKES_ARG (p))
3938 int n_args = WORD_SWITCH_TAKES_ARG (p);
3942 /* Count only the option arguments in separate argv elements. */
3943 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3945 if (i + n_args >= argc)
3946 fatal ("argument to `-%s' is missing", p);
3947 switches[n_switches].args
3948 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3950 switches[n_switches].args[j++] = argv[++i];
3951 /* Null-terminate the vector. */
3952 switches[n_switches].args[j] = 0;
3954 else if (strchr (switches_need_spaces, c))
3956 /* On some systems, ld cannot handle some options without
3957 a space. So split the option from its argument. */
3958 char *part1 = (char *) xmalloc (2);
3962 switches[n_switches].part1 = part1;
3963 switches[n_switches].args
3964 = (const char **) xmalloc (2 * sizeof (const char *));
3965 switches[n_switches].args[0] = xstrdup (p+1);
3966 switches[n_switches].args[1] = 0;
3969 switches[n_switches].args = 0;
3971 switches[n_switches].live_cond = SWITCH_OK;
3972 switches[n_switches].validated = 0;
3973 switches[n_switches].ordering = 0;
3974 /* These are always valid, since gcc.c itself understands it. */
3975 if (!strcmp (p, "save-temps")
3976 || !strcmp (p, "static-libgcc")
3977 || !strcmp (p, "shared-libgcc"))
3978 switches[n_switches].validated = 1;
3981 char ch = switches[n_switches].part1[0];
3982 if (ch == 'V' || ch == 'b' || ch == 'B')
3983 switches[n_switches].validated = 1;
3989 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3990 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
3993 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3995 perror_with_name (argv[i]);
4000 infiles[n_infiles].language = spec_lang;
4001 infiles[n_infiles++].name = argv[i];
4006 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4007 error ("warning: `-x %s' after last input file has no effect", spec_lang);
4009 /* Ensure we only invoke each subprocess once. */
4010 if (target_help_flag || print_help_list)
4014 /* Create a dummy input file, so that we can pass --target-help on to
4015 the various sub-processes. */
4016 infiles[0].language = "c";
4017 infiles[0].name = "help-dummy";
4019 if (target_help_flag)
4021 switches[n_switches].part1 = "--target-help";
4022 switches[n_switches].args = 0;
4023 switches[n_switches].live_cond = SWITCH_OK;
4024 switches[n_switches].validated = 0;
4029 if (print_help_list)
4031 switches[n_switches].part1 = "--help";
4032 switches[n_switches].args = 0;
4033 switches[n_switches].live_cond = SWITCH_OK;
4034 switches[n_switches].validated = 0;
4040 switches[n_switches].part1 = 0;
4041 infiles[n_infiles].name = 0;
4044 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
4045 and place that in the environment. */
4048 set_collect_gcc_options ()
4053 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4055 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4056 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4059 for (i = 0; (int) i < n_switches; i++)
4061 const char *const *args;
4064 obstack_grow (&collect_obstack, " ", 1);
4068 /* Ignore elided switches. */
4069 if (switches[i].live_cond == SWITCH_IGNORE)
4072 obstack_grow (&collect_obstack, "'-", 2);
4073 q = switches[i].part1;
4074 while ((p = strchr (q, '\'')))
4076 obstack_grow (&collect_obstack, q, p - q);
4077 obstack_grow (&collect_obstack, "'\\''", 4);
4080 obstack_grow (&collect_obstack, q, strlen (q));
4081 obstack_grow (&collect_obstack, "'", 1);
4083 for (args = switches[i].args; args && *args; args++)
4085 obstack_grow (&collect_obstack, " '", 2);
4087 while ((p = strchr (q, '\'')))
4089 obstack_grow (&collect_obstack, q, p - q);
4090 obstack_grow (&collect_obstack, "'\\''", 4);
4093 obstack_grow (&collect_obstack, q, strlen (q));
4094 obstack_grow (&collect_obstack, "'", 1);
4097 obstack_grow (&collect_obstack, "\0", 1);
4098 putenv (obstack_finish (&collect_obstack));
4101 /* Process a spec string, accumulating and running commands. */
4103 /* These variables describe the input file name.
4104 input_file_number is the index on outfiles of this file,
4105 so that the output file name can be stored for later use by %o.
4106 input_basename is the start of the part of the input file
4107 sans all directory names, and basename_length is the number
4108 of characters starting there excluding the suffix .c or whatever. */
4110 const char *input_filename;
4111 static int input_file_number;
4112 size_t input_filename_length;
4113 static int basename_length;
4114 static int suffixed_basename_length;
4115 static const char *input_basename;
4116 static const char *input_suffix;
4117 static struct stat input_stat;
4118 static int input_stat_set;
4120 /* The compiler used to process the current input file. */
4121 static struct compiler *input_file_compiler;
4123 /* These are variables used within do_spec and do_spec_1. */
4125 /* Nonzero if an arg has been started and not yet terminated
4126 (with space, tab or newline). */
4127 static int arg_going;
4129 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4130 is a temporary file name. */
4131 static int delete_this_arg;
4133 /* Nonzero means %w has been seen; the next arg to be terminated
4134 is the output file name of this compilation. */
4135 static int this_is_output_file;
4137 /* Nonzero means %s has been seen; the next arg to be terminated
4138 is the name of a library file and we should try the standard
4139 search dirs for it. */
4140 static int this_is_library_file;
4142 /* Nonzero means that the input of this command is coming from a pipe. */
4143 static int input_from_pipe;
4145 /* Nonnull means substitute this for any suffix when outputting a switches
4147 static const char *suffix_subst;
4149 /* Process the spec SPEC and run the commands specified therein.
4150 Returns 0 if the spec is successfully processed; -1 if failed. */
4160 delete_this_arg = 0;
4161 this_is_output_file = 0;
4162 this_is_library_file = 0;
4163 input_from_pipe = 0;
4164 suffix_subst = NULL;
4166 value = do_spec_1 (spec, 0, NULL);
4168 /* Force out any unfinished command.
4169 If -pipe, this forces out the last command if it ended in `|'. */
4172 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4175 set_collect_gcc_options ();
4177 if (argbuf_index > 0)
4184 /* Process the sub-spec SPEC as a portion of a larger spec.
4185 This is like processing a whole spec except that we do
4186 not initialize at the beginning and we do not supply a
4187 newline by default at the end.
4188 INSWITCH nonzero means don't process %-sequences in SPEC;
4189 in this case, % is treated as an ordinary character.
4190 This is used while substituting switches.
4191 INSWITCH nonzero also causes SPC not to terminate an argument.
4193 Value is zero unless a line was finished
4194 and the command on that line reported an error. */
4197 do_spec_1 (spec, inswitch, soft_matched_part)
4200 const char *soft_matched_part;
4202 const char *p = spec;
4209 /* If substituting a switch, treat all chars like letters.
4210 Otherwise, NL, SPC, TAB and % are special. */
4211 switch (inswitch ? 'a' : c)
4214 /* End of line: finish any pending argument,
4215 then run the pending command if one has been started. */
4218 obstack_1grow (&obstack, 0);
4219 string = obstack_finish (&obstack);
4220 if (this_is_library_file)
4221 string = find_file (string);
4222 store_arg (string, delete_this_arg, this_is_output_file);
4223 if (this_is_output_file)
4224 outfiles[input_file_number] = string;
4228 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4230 for (i = 0; i < n_switches; i++)
4231 if (!strcmp (switches[i].part1, "pipe"))
4234 /* A `|' before the newline means use a pipe here,
4235 but only if -pipe was specified.
4236 Otherwise, execute now and don't pass the `|' as an arg. */
4239 input_from_pipe = 1;
4240 switches[i].validated = 1;
4247 set_collect_gcc_options ();
4249 if (argbuf_index > 0)
4255 /* Reinitialize for a new command, and for a new argument. */
4258 delete_this_arg = 0;
4259 this_is_output_file = 0;
4260 this_is_library_file = 0;
4261 input_from_pipe = 0;
4265 /* End any pending argument. */
4268 obstack_1grow (&obstack, 0);
4269 string = obstack_finish (&obstack);
4270 if (this_is_library_file)
4271 string = find_file (string);
4272 store_arg (string, delete_this_arg, this_is_output_file);
4273 if (this_is_output_file)
4274 outfiles[input_file_number] = string;
4278 obstack_1grow (&obstack, c);
4284 /* Space or tab ends an argument if one is pending. */
4287 obstack_1grow (&obstack, 0);
4288 string = obstack_finish (&obstack);
4289 if (this_is_library_file)
4290 string = find_file (string);
4291 store_arg (string, delete_this_arg, this_is_output_file);
4292 if (this_is_output_file)
4293 outfiles[input_file_number] = string;
4295 /* Reinitialize for a new argument. */
4297 delete_this_arg = 0;
4298 this_is_output_file = 0;
4299 this_is_library_file = 0;
4306 fatal ("invalid specification! Bug in cc");
4309 obstack_grow (&obstack, input_basename, basename_length);
4314 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4319 delete_this_arg = 2;
4322 /* Dump out the directories specified with LIBRARY_PATH,
4323 followed by the absolute directories
4324 that we search for startfiles. */
4327 struct prefix_list *pl = startfile_prefixes.plist;
4328 size_t bufsize = 100;
4329 char *buffer = (char *) xmalloc (bufsize);
4332 for (; pl; pl = pl->next)
4334 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4335 /* Used on systems which record the specified -L dirs
4336 and use them to search for dynamic linking. */
4337 /* Relative directories always come from -B,
4338 and it is better not to use them for searching
4339 at run time. In particular, stage1 loses. */
4340 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
4343 /* Try subdirectory if there is one. */
4344 if (multilib_dir != NULL)
4348 if (strlen (pl->prefix) + strlen (machine_suffix)
4350 bufsize = (strlen (pl->prefix)
4351 + strlen (machine_suffix)) * 2 + 1;
4352 buffer = (char *) xrealloc (buffer, bufsize);
4353 strcpy (buffer, pl->prefix);
4354 strcat (buffer, machine_suffix);
4355 if (is_directory (buffer, multilib_dir, 1))
4357 do_spec_1 ("-L", 0, NULL);
4358 #ifdef SPACE_AFTER_L_OPTION
4359 do_spec_1 (" ", 0, NULL);
4361 do_spec_1 (buffer, 1, NULL);
4362 do_spec_1 (multilib_dir, 1, NULL);
4363 /* Make this a separate argument. */
4364 do_spec_1 (" ", 0, NULL);
4367 if (!pl->require_machine_suffix)
4369 if (is_directory (pl->prefix, multilib_dir, 1))
4371 do_spec_1 ("-L", 0, NULL);
4372 #ifdef SPACE_AFTER_L_OPTION
4373 do_spec_1 (" ", 0, NULL);
4375 do_spec_1 (pl->prefix, 1, NULL);
4376 do_spec_1 (multilib_dir, 1, NULL);
4377 /* Make this a separate argument. */
4378 do_spec_1 (" ", 0, NULL);
4384 if (is_directory (pl->prefix, machine_suffix, 1))
4386 do_spec_1 ("-L", 0, NULL);
4387 #ifdef SPACE_AFTER_L_OPTION
4388 do_spec_1 (" ", 0, NULL);
4390 do_spec_1 (pl->prefix, 1, NULL);
4391 /* Remove slash from machine_suffix. */
4392 if (strlen (machine_suffix) >= bufsize)
4393 bufsize = strlen (machine_suffix) * 2 + 1;
4394 buffer = (char *) xrealloc (buffer, bufsize);
4395 strcpy (buffer, machine_suffix);
4396 idx = strlen (buffer);
4397 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4398 buffer[idx - 1] = 0;
4399 do_spec_1 (buffer, 1, NULL);
4400 /* Make this a separate argument. */
4401 do_spec_1 (" ", 0, NULL);
4404 if (!pl->require_machine_suffix)
4406 if (is_directory (pl->prefix, "", 1))
4408 do_spec_1 ("-L", 0, NULL);
4409 #ifdef SPACE_AFTER_L_OPTION
4410 do_spec_1 (" ", 0, NULL);
4412 /* Remove slash from pl->prefix. */
4413 if (strlen (pl->prefix) >= bufsize)
4414 bufsize = strlen (pl->prefix) * 2 + 1;
4415 buffer = (char *) xrealloc (buffer, bufsize);
4416 strcpy (buffer, pl->prefix);
4417 idx = strlen (buffer);
4418 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4419 buffer[idx - 1] = 0;
4420 do_spec_1 (buffer, 1, NULL);
4421 /* Make this a separate argument. */
4422 do_spec_1 (" ", 0, NULL);
4431 /* %efoo means report an error with `foo' as error message
4432 and don't execute any more commands for this file. */
4436 while (*p != 0 && *p != '\n')
4438 buf = (char *) alloca (p - q + 1);
4439 strncpy (buf, q, p - q);
4446 /* %nfoo means report an notice with `foo' on stderr. */
4450 while (*p != 0 && *p != '\n')
4452 buf = (char *) alloca (p - q + 1);
4453 strncpy (buf, q, p - q);
4455 notice ("%s\n", buf);
4465 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4466 and it is not a directory, and it is writable, use it.
4467 Otherwise, fall through and treat this like any other
4470 if ((!save_temps_flag)
4471 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4472 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4474 obstack_grow (&obstack, HOST_BIT_BUCKET,
4475 strlen (HOST_BIT_BUCKET));
4476 delete_this_arg = 0;
4485 struct temp_name *t;
4487 const char *suffix = p;
4488 char *saved_suffix = NULL;
4490 while (*p == '.' || ISALPHA ((unsigned char) *p))
4492 suffix_length = p - suffix;
4493 if (p[0] == '%' && p[1] == 'O')
4496 /* We don't support extra suffix characters after %O. */
4497 if (*p == '.' || ISALPHA ((unsigned char) *p))
4499 if (suffix_length == 0)
4500 suffix = TARGET_OBJECT_SUFFIX;
4504 = (char *) xmalloc (suffix_length
4505 + strlen (TARGET_OBJECT_SUFFIX));
4506 strncpy (saved_suffix, suffix, suffix_length);
4507 strcpy (saved_suffix + suffix_length,
4508 TARGET_OBJECT_SUFFIX);
4510 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4513 /* If the input_filename has the same suffix specified
4514 for the %g, %u, or %U, and -save-temps is specified,
4515 we could end up using that file as an intermediate
4516 thus clobbering the user's source file (.e.g.,
4517 gcc -save-temps foo.s would clobber foo.s with the
4518 output of cpp0). So check for this condition and
4519 generate a temp file as the intermediate. */
4521 if (save_temps_flag)
4523 temp_filename_length = basename_length + suffix_length;
4524 temp_filename = alloca (temp_filename_length + 1);
4525 strncpy ((char *) temp_filename, input_basename, basename_length);
4526 strncpy ((char *) temp_filename + basename_length, suffix,
4528 *((char *) temp_filename + temp_filename_length) = '\0';
4529 if (strcmp (temp_filename, input_filename) != 0)
4531 struct stat st_temp;
4533 /* Note, set_input() resets input_stat_set to 0. */
4534 if (input_stat_set == 0)
4536 input_stat_set = stat (input_filename, &input_stat);
4537 if (input_stat_set >= 0)
4541 /* If we have the stat for the input_filename
4542 and we can do the stat for the temp_filename
4543 then the they could still refer to the same
4544 file if st_dev/st_ino's are the same. */
4546 if (input_stat_set != 1
4547 || stat (temp_filename, &st_temp) < 0
4548 || input_stat.st_dev != st_temp.st_dev
4549 || input_stat.st_ino != st_temp.st_ino)
4551 temp_filename = save_string (temp_filename,
4552 temp_filename_length + 1);
4553 obstack_grow (&obstack, temp_filename,
4554 temp_filename_length);
4561 /* See if we already have an association of %g/%u/%U and
4563 for (t = temp_names; t; t = t->next)
4564 if (t->length == suffix_length
4565 && strncmp (t->suffix, suffix, suffix_length) == 0
4566 && t->unique == (c != 'g'))
4569 /* Make a new association if needed. %u and %j
4571 if (t == 0 || c == 'u' || c == 'j')
4575 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4576 t->next = temp_names;
4579 t->length = suffix_length;
4582 t->suffix = saved_suffix;
4583 saved_suffix = NULL;
4586 t->suffix = save_string (suffix, suffix_length);
4587 t->unique = (c != 'g');
4588 temp_filename = make_temp_file (t->suffix);
4589 temp_filename_length = strlen (temp_filename);
4590 t->filename = temp_filename;
4591 t->filename_length = temp_filename_length;
4595 free (saved_suffix);
4597 obstack_grow (&obstack, t->filename, t->filename_length);
4598 delete_this_arg = 1;
4604 obstack_grow (&obstack, input_filename, input_filename_length);
4610 struct prefix_list *pl = include_prefixes.plist;
4612 if (gcc_exec_prefix)
4614 do_spec_1 ("-iprefix", 1, NULL);
4615 /* Make this a separate argument. */
4616 do_spec_1 (" ", 0, NULL);
4617 do_spec_1 (gcc_exec_prefix, 1, NULL);
4618 do_spec_1 (" ", 0, NULL);
4621 for (; pl; pl = pl->next)
4623 do_spec_1 ("-isystem", 1, NULL);
4624 /* Make this a separate argument. */
4625 do_spec_1 (" ", 0, NULL);
4626 do_spec_1 (pl->prefix, 1, NULL);
4627 do_spec_1 (" ", 0, NULL);
4634 int max = n_infiles;
4635 max += lang_specific_extra_outfiles;
4637 for (i = 0; i < max; i++)
4639 store_arg (outfiles[i], 0, 0);
4644 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
4649 this_is_library_file = 1;
4653 this_is_output_file = 1;
4658 int cur_index = argbuf_index;
4659 /* Handle the {...} following the %W. */
4662 p = handle_braces (p + 1);
4665 /* If any args were output, mark the last one for deletion
4667 if (argbuf_index != cur_index)
4668 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4672 /* %x{OPTION} records OPTION for %X to output. */
4678 /* Skip past the option value and make a copy. */
4683 string = save_string (p1 + 1, p - p1 - 2);
4685 /* See if we already recorded this option. */
4686 for (i = 0; i < n_linker_options; i++)
4687 if (! strcmp (string, linker_options[i]))
4693 /* This option is new; add it. */
4694 add_linker_option (string, strlen (string));
4698 /* Dump out the options accumulated previously using %x. */
4700 for (i = 0; i < n_linker_options; i++)
4702 do_spec_1 (linker_options[i], 1, NULL);
4703 /* Make each accumulated option a separate argument. */
4704 do_spec_1 (" ", 0, NULL);
4708 /* Dump out the options accumulated previously using -Wa,. */
4710 for (i = 0; i < n_assembler_options; i++)
4712 do_spec_1 (assembler_options[i], 1, NULL);
4713 /* Make each accumulated option a separate argument. */
4714 do_spec_1 (" ", 0, NULL);
4718 /* Dump out the options accumulated previously using -Wp,. */
4720 for (i = 0; i < n_preprocessor_options; i++)
4722 do_spec_1 (preprocessor_options[i], 1, NULL);
4723 /* Make each accumulated option a separate argument. */
4724 do_spec_1 (" ", 0, NULL);
4728 /* Here are digits and numbers that just process
4729 a certain constant string as a spec. */
4732 value = do_spec_1 (cc1_spec, 0, NULL);
4738 value = do_spec_1 (cc1plus_spec, 0, NULL);
4744 value = do_spec_1 (asm_spec, 0, NULL);
4750 value = do_spec_1 (asm_final_spec, 0, NULL);
4756 value = do_spec_1 (signed_char_spec, 0, NULL);
4763 const char *const spec
4764 = (input_file_compiler->cpp_spec
4765 ? input_file_compiler->cpp_spec
4767 value = do_spec_1 (spec, 0, NULL);
4774 value = do_spec_1 (endfile_spec, 0, NULL);
4780 value = do_spec_1 (link_spec, 0, NULL);
4786 value = do_spec_1 (lib_spec, 0, NULL);
4792 value = do_spec_1 (libgcc_spec, 0, NULL);
4798 if (multilib_dir && strcmp (multilib_dir, ".") != 0)
4804 len = strlen (multilib_dir);
4805 obstack_blank (&obstack, len + 1);
4806 p = obstack_next_free (&obstack) - (len + 1);
4809 for (q = multilib_dir; *q ; ++q, ++p)
4810 *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
4816 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4820 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4824 if (! strncmp (y, "-D", 2))
4825 /* Copy the whole option. */
4826 while (*y && *y != ' ' && *y != '\t')
4828 else if (*y == ' ' || *y == '\t')
4829 /* Copy whitespace to the result. */
4831 /* Don't copy other options. */
4838 value = do_spec_1 (buf, 0, NULL);
4846 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4850 /* Copy all of CPP_PREDEFINES into BUF,
4851 but force them all into the reserved name space if they
4852 aren't already there. The reserved name space is all
4853 identifiers beginning with two underscores or with one
4854 underscore and a capital letter. We do the forcing by
4855 adding up to two underscores to the beginning and end
4856 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4861 if (! strncmp (y, "-D", 2))
4870 && ! ISUPPER ((unsigned char) *(y + 1))))
4872 /* Stick __ at front of macro name. */
4876 /* Arrange to stick __ at the end as well. */
4880 /* Copy the macro name. */
4881 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4894 /* Copy the value given, if any. */
4895 while (*y && *y != ' ' && *y != '\t')
4898 else if (*y == ' ' || *y == '\t')
4899 /* Copy whitespace to the result. */
4901 /* Don't copy -A options */
4907 /* Copy all of CPP_PREDEFINES into BUF,
4908 but put __ after every -D. */
4912 if (! strncmp (y, "-D", 2))
4918 && ! ISUPPER ((unsigned char) *(y + 1))))
4920 /* Stick -D__ at front of macro name. */
4927 /* Copy the macro name. */
4928 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4931 /* Copy the value given, if any. */
4932 while (*y && *y != ' ' && *y != '\t')
4937 /* Do not copy this macro - we have just done it before */
4938 while (*y && *y != ' ' && *y != '\t')
4942 else if (*y == ' ' || *y == '\t')
4943 /* Copy whitespace to the result. */
4945 /* Don't copy -A options. */
4951 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4955 if (! strncmp (y, "-A", 2))
4956 /* Copy the whole option. */
4957 while (*y && *y != ' ' && *y != '\t')
4959 else if (*y == ' ' || *y == '\t')
4960 /* Copy whitespace to the result. */
4962 /* Don't copy other options. */
4969 value = do_spec_1 (buf, 0, NULL);
4976 value = do_spec_1 (startfile_spec, 0, NULL);
4981 /* Here we define characters other than letters and digits. */
4984 p = handle_braces (p);
4990 obstack_1grow (&obstack, '%');
4997 while (p[len] && p[len] != ' ' && p[len] != '%')
4999 suffix_subst = save_string (p - 1, len + 1);
5005 if (soft_matched_part)
5007 do_spec_1 (soft_matched_part, 1, NULL);
5008 do_spec_1 (" ", 0, NULL);
5011 /* Catch the case where a spec string contains something like
5012 '%{foo:%*}'. ie there is no * in the pattern on the left
5013 hand side of the :. */
5014 error ("spec failure: '%%*' has not been initialised by pattern match");
5017 /* Process a string found as the value of a spec given by name.
5018 This feature allows individual machine descriptions
5019 to add and use their own specs.
5020 %[...] modifies -D options the way %P does;
5021 %(...) uses the spec unmodified. */
5023 error ("warning: use of obsolete %%[ operator in specs");
5026 const char *name = p;
5027 struct spec_list *sl;
5030 /* The string after the S/P is the name of a spec that is to be
5032 while (*p && *p != ')' && *p != ']')
5035 /* See if it's in the list. */
5036 for (len = p - name, sl = specs; sl; sl = sl->next)
5037 if (sl->name_len == len && !strncmp (sl->name, name, len))
5039 name = *(sl->ptr_spec);
5041 notice ("Processing spec %c%s%c, which is '%s'\n",
5042 c, sl->name, (c == '(') ? ')' : ']', name);
5051 value = do_spec_1 (name, 0, NULL);
5057 char *x = (char *) alloca (strlen (name) * 2 + 1);
5059 const char *y = name;
5062 /* Copy all of NAME into BUF, but put __ after
5063 every -D and at the end of each arg. */
5066 if (! strncmp (y, "-D", 2))
5077 && (*y == ' ' || *y == '\t' || *y == '='
5078 || *y == '}' || *y == 0))
5091 value = do_spec_1 (buf, 0, NULL);
5097 /* Discard the closing paren or bracket. */
5105 int c1 = *p++; /* Select first or second version number. */
5106 const char *v = compiler_version;
5108 static const char zeroc = '0';
5110 /* The format of the version string is
5111 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5113 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5114 while (! ISDIGIT (*v))
5116 if (v > compiler_version && v[-1] != '-')
5119 /* If desired, advance to second version number. */
5122 /* Set V after the first period. */
5123 while (ISDIGIT (*v))
5130 /* If desired, advance to third version number.
5131 But don't complain if it's not present */
5134 /* Set V after the second period. */
5135 while (ISDIGIT (*v))
5137 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
5143 /* Set Q at the next period or at the end. */
5145 while (ISDIGIT (*q))
5147 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
5151 /* Put that part into the command. */
5152 obstack_grow (&obstack, v, q - v);
5154 /* Default to "0" */
5155 obstack_grow (&obstack, &zeroc, 1);
5161 if (input_from_pipe)
5162 do_spec_1 ("-", 0, NULL);
5166 error ("spec failure: unrecognised spec option '%c'", c);
5172 /* Backslash: treat next character as ordinary. */
5177 /* Ordinary character: put it into the current argument. */
5178 obstack_1grow (&obstack, c);
5182 /* End of string. */
5186 /* Return 0 if we call do_spec_1 and that returns -1. */
5192 const char *filter, *body = NULL, *endbody = NULL;
5194 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5197 int include_blanks = 1;
5198 int elide_switch = 0;
5203 /* A '^' after the open-brace means to not give blanks before args. */
5210 /* A `|' after the open-brace means,
5211 if the test fails, output a single minus sign rather than nothing.
5212 This is used in %{|!pipe:...}. */
5219 /* A `<' after the open-brace means that the switch should be
5220 removed from the command-line. */
5226 negate = suffix = 0;
5229 /* A `!' after the open-brace negates the condition:
5230 succeed if the specified switch is not present. */
5234 /* A `.' after the open-brace means test against the current suffix. */
5243 if (elide_switch && (negate || pipe_p || suffix))
5245 /* It doesn't make sense to mix elision with other flags. We
5246 could fatal() here, but the standard seems to be to abort. */
5252 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
5255 if (*p == '|' && (pipe_p || ordered))
5260 if (*p != '}' && *p != '&')
5276 fatal ("mismatched braces in specs");
5282 body = p, endbody = p + 1;
5287 int found = (input_suffix != 0
5288 && (long) strlen (input_suffix) == (long) (p - filter)
5289 && strncmp (input_suffix, filter, p - filter) == 0);
5295 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL) < 0)
5298 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
5300 /* Substitute all matching switches as separate args. */
5303 for (i = 0; i < n_switches; i++)
5304 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
5305 && check_live_switch (i, p - 1 - filter))
5309 switches[i].live_cond = SWITCH_IGNORE;
5310 switches[i].validated = 1;
5313 ordered = 1, switches[i].ordering = 1;
5318 /* Test for presence of the specified switch. */
5322 /* If name specified ends in *, as in {x*:...},
5323 check for %* and handle that case. */
5324 if (p[-1] == '*' && !negate)
5327 const char *r = body;
5329 /* First see whether we have %*. */
5333 if (*r == '%' && r[1] == '*')
5337 /* If we do, handle that case. */
5340 /* Substitute all matching switches as separate args.
5341 But do this by substituting for %*
5342 in the text that follows the colon. */
5344 unsigned hard_match_len = p - filter - 1;
5345 char *string = save_string (body, endbody - body - 1);
5347 for (i = 0; i < n_switches; i++)
5348 if (!strncmp (switches[i].part1, filter, hard_match_len)
5349 && check_live_switch (i, -1))
5351 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
5352 /* Pass any arguments this switch has. */
5353 give_switch (i, 1, 1);
5354 suffix_subst = NULL;
5357 /* We didn't match. Try again. */
5364 /* If name specified ends in *, as in {x*:...},
5365 check for presence of any switch name starting with x. */
5368 for (i = 0; i < n_switches; i++)
5370 unsigned hard_match_len = p - filter - 1;
5372 if (!strncmp (switches[i].part1, filter, hard_match_len)
5373 && check_live_switch (i, hard_match_len))
5380 /* Otherwise, check for presence of exact name specified. */
5383 for (i = 0; i < n_switches; i++)
5385 if (!strncmp (switches[i].part1, filter, p - filter)
5386 && switches[i].part1[p - filter] == 0
5387 && check_live_switch (i, -1))
5395 /* If it is as desired (present for %{s...}, absent for %{!s...})
5396 then substitute either the switch or the specified
5397 conditional text. */
5398 if (present != negate)
5402 switches[i].live_cond = SWITCH_IGNORE;
5403 switches[i].validated = 1;
5405 else if (ordered || *p == '&')
5406 ordered = 1, switches[i].ordering = 1;
5408 give_switch (i, 0, include_blanks);
5410 /* Even if many alternatives are matched, only output once. */
5415 /* Here if a %{|...} conditional fails: output a minus sign,
5416 which means "standard output" or "standard input". */
5417 do_spec_1 ("-", 0, NULL);
5422 /* We didn't match; try again. */
5429 goto next_ampersand;
5435 /* Doing this set of switches later preserves their command-line
5436 ordering. This is needed for e.g. -U, -D and -A. */
5437 for (i = 0; i < n_switches; i++)
5438 if (switches[i].ordering == 1)
5440 switches[i].ordering = 0;
5441 give_switch (i, 0, include_blanks);
5444 /* Process the spec just once, regardless of match count. */
5447 if (do_spec_1 (save_string (body, endbody - body - 1),
5455 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5456 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5457 spec, or -1 if either exact match or %* is used.
5459 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5460 whose value does not begin with "no-" is obsoleted by the same value
5461 with the "no-", similarly for a switch with the "no-" prefix. */
5464 check_live_switch (switchnum, prefix_length)
5468 const char *name = switches[switchnum].part1;
5471 /* In the common case of {<at-most-one-letter>*}, a negating
5472 switch would always match, so ignore that case. We will just
5473 send the conflicting switches to the compiler phase. */
5474 if (prefix_length >= 0 && prefix_length <= 1)
5477 /* If we already processed this switch and determined if it was
5478 live or not, return our past determination. */
5479 if (switches[switchnum].live_cond != 0)
5480 return switches[switchnum].live_cond > 0;
5482 /* Now search for duplicate in a manner that depends on the name. */
5486 for (i = switchnum + 1; i < n_switches; i++)
5487 if (switches[i].part1[0] == 'O')
5489 switches[switchnum].validated = 1;
5490 switches[switchnum].live_cond = SWITCH_FALSE;
5495 case 'W': case 'f': case 'm':
5496 if (! strncmp (name + 1, "no-", 3))
5498 /* We have Xno-YYY, search for XYYY. */
5499 for (i = switchnum + 1; i < n_switches; i++)
5500 if (switches[i].part1[0] == name[0]
5501 && ! strcmp (&switches[i].part1[1], &name[4]))
5503 switches[switchnum].validated = 1;
5504 switches[switchnum].live_cond = SWITCH_FALSE;
5510 /* We have XYYY, search for Xno-YYY. */
5511 for (i = switchnum + 1; i < n_switches; i++)
5512 if (switches[i].part1[0] == name[0]
5513 && switches[i].part1[1] == 'n'
5514 && switches[i].part1[2] == 'o'
5515 && switches[i].part1[3] == '-'
5516 && !strcmp (&switches[i].part1[4], &name[1]))
5518 switches[switchnum].validated = 1;
5519 switches[switchnum].live_cond = SWITCH_FALSE;
5526 /* Otherwise the switch is live. */
5527 switches[switchnum].live_cond = SWITCH_LIVE;
5531 /* Pass a switch to the current accumulating command
5532 in the same form that we received it.
5533 SWITCHNUM identifies the switch; it is an index into
5534 the vector of switches gcc received, which is `switches'.
5535 This cannot fail since it never finishes a command line.
5537 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5539 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5543 give_switch (switchnum, omit_first_word, include_blanks)
5545 int omit_first_word;
5548 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5551 if (!omit_first_word)
5553 do_spec_1 ("-", 0, NULL);
5554 do_spec_1 (switches[switchnum].part1, 1, NULL);
5557 if (switches[switchnum].args != 0)
5560 for (p = switches[switchnum].args; *p; p++)
5562 const char *arg = *p;
5565 do_spec_1 (" ", 0, NULL);
5568 unsigned length = strlen (arg);
5571 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5572 if (arg[length] == '.')
5574 ((char *)arg)[length] = 0;
5578 do_spec_1 (arg, 1, NULL);
5580 ((char *)arg)[length] = '.';
5581 do_spec_1 (suffix_subst, 1, NULL);
5584 do_spec_1 (arg, 1, NULL);
5588 do_spec_1 (" ", 0, NULL);
5589 switches[switchnum].validated = 1;
5592 /* Search for a file named NAME trying various prefixes including the
5593 user's -B prefix and some standard ones.
5594 Return the absolute file name found. If nothing is found, return NAME. */
5602 /* Try multilib_dir if it is defined. */
5603 if (multilib_dir != NULL)
5605 const char *const try = ACONCAT ((multilib_dir, dir_separator_str, name, NULL));
5607 newname = find_a_file (&startfile_prefixes, try, R_OK);
5609 /* If we don't find it in the multi library dir, then fall
5610 through and look for it in the normal places. */
5611 if (newname != NULL)
5615 newname = find_a_file (&startfile_prefixes, name, R_OK);
5616 return newname ? newname : name;
5619 /* Determine whether a directory exists. If LINKER, return 0 for
5620 certain fixed names not needed by the linker. If not LINKER, it is
5621 only important to return 0 if the host machine has a small ARG_MAX
5625 is_directory (path1, path2, linker)
5630 int len1 = strlen (path1);
5631 int len2 = strlen (path2);
5632 char *path = (char *) alloca (3 + len1 + len2);
5636 #ifndef SMALL_ARG_MAX
5641 /* Construct the path from the two parts. Ensure the string ends with "/.".
5642 The resulting path will be a directory even if the given path is a
5644 memcpy (path, path1, len1);
5645 memcpy (path + len1, path2, len2);
5646 cp = path + len1 + len2;
5647 if (!IS_DIR_SEPARATOR (cp[-1]))
5648 *cp++ = DIR_SEPARATOR;
5652 /* Exclude directories that the linker is known to search. */
5655 && strcmp (path, concat (dir_separator_str, "lib",
5656 dir_separator_str, ".", NULL)) == 0)
5658 && strcmp (path, concat (dir_separator_str, "usr",
5659 dir_separator_str, "lib",
5660 dir_separator_str, ".", NULL)) == 0)))
5663 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5666 /* Set up the various global variables to indicate that we're processing
5667 the input file named FILENAME. */
5670 set_input (filename)
5671 const char *filename;
5675 input_filename = filename;
5676 input_filename_length = strlen (input_filename);
5678 input_basename = input_filename;
5679 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5680 /* Skip drive name so 'x:foo' is handled properly. */
5681 if (input_basename[1] == ':')
5682 input_basename += 2;
5684 for (p = input_basename; *p; p++)
5685 if (IS_DIR_SEPARATOR (*p))
5686 input_basename = p + 1;
5688 /* Find a suffix starting with the last period,
5689 and set basename_length to exclude that suffix. */
5690 basename_length = strlen (input_basename);
5691 suffixed_basename_length = basename_length;
5692 p = input_basename + basename_length;
5693 while (p != input_basename && *p != '.')
5695 if (*p == '.' && p != input_basename)
5697 basename_length = p - input_basename;
5698 input_suffix = p + 1;
5703 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5704 we will need to do a stat on the input_filename. The
5705 INPUT_STAT_SET signals that the stat is needed. */
5709 /* On fatal signals, delete all the temporary files. */
5712 fatal_error (signum)
5715 signal (signum, SIG_DFL);
5716 delete_failure_queue ();
5717 delete_temp_files ();
5718 /* Get the same signal again, this time not handled,
5719 so its normal effect occurs. */
5720 kill (getpid (), signum);
5723 extern int main PARAMS ((int, const char *const *));
5728 const char *const *argv;
5732 int linker_was_run = 0;
5733 char *explicit_link_files;
5736 struct user_specs *uptr;
5738 p = argv[0] + strlen (argv[0]);
5739 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5743 xmalloc_set_program_name (programname);
5745 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5746 /* Perform host dependent initialization when needed. */
5747 GCC_DRIVER_HOST_INITIALIZATION;
5750 gcc_init_libintl ();
5752 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5753 signal (SIGINT, fatal_error);
5755 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5756 signal (SIGHUP, fatal_error);
5758 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5759 signal (SIGTERM, fatal_error);
5761 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5762 signal (SIGPIPE, fatal_error);
5765 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5766 receive the signal. A different setting is inheritable */
5767 signal (SIGCHLD, SIG_DFL);
5771 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5773 obstack_init (&obstack);
5775 /* Build multilib_select, et. al from the separate lines that make up each
5776 multilib selection. */
5778 const char *const *q = multilib_raw;
5781 obstack_init (&multilib_obstack);
5782 while ((p = *q++) != (char *) 0)
5783 obstack_grow (&multilib_obstack, p, strlen (p));
5785 obstack_1grow (&multilib_obstack, 0);
5786 multilib_select = obstack_finish (&multilib_obstack);
5788 q = multilib_matches_raw;
5789 while ((p = *q++) != (char *) 0)
5790 obstack_grow (&multilib_obstack, p, strlen (p));
5792 obstack_1grow (&multilib_obstack, 0);
5793 multilib_matches = obstack_finish (&multilib_obstack);
5795 q = multilib_exclusions_raw;
5796 while ((p = *q++) != (char *) 0)
5797 obstack_grow (&multilib_obstack, p, strlen (p));
5799 obstack_1grow (&multilib_obstack, 0);
5800 multilib_exclusions = obstack_finish (&multilib_obstack);
5803 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5806 obstack_1grow (&multilib_obstack, ' ');
5807 obstack_grow (&multilib_obstack,
5808 multilib_defaults_raw[i],
5809 strlen (multilib_defaults_raw[i]));
5813 obstack_1grow (&multilib_obstack, 0);
5814 multilib_defaults = obstack_finish (&multilib_obstack);
5817 /* Set up to remember the pathname of gcc and any options
5818 needed for collect. We use argv[0] instead of programname because
5819 we need the complete pathname. */
5820 obstack_init (&collect_obstack);
5821 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5822 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5823 putenv (obstack_finish (&collect_obstack));
5825 #ifdef INIT_ENVIRONMENT
5826 /* Set up any other necessary machine specific environment variables. */
5827 putenv (INIT_ENVIRONMENT);
5830 /* Make a table of what switches there are (switches, n_switches).
5831 Make a table of specified input files (infiles, n_infiles).
5832 Decode switches that are handled locally. */
5834 process_command (argc, argv);
5836 /* Initialize the vector of specs to just the default.
5837 This means one element containing 0s, as a terminator. */
5839 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5840 memcpy ((char *) compilers, (char *) default_compilers,
5841 sizeof default_compilers);
5842 n_compilers = n_default_compilers;
5844 /* Read specs from a file if there is one. */
5846 machine_suffix = concat (spec_machine, dir_separator_str,
5847 spec_version, dir_separator_str, NULL);
5848 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
5850 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5851 /* Read the specs file unless it is a default one. */
5852 if (specs_file != 0 && strcmp (specs_file, "specs"))
5853 read_specs (specs_file, TRUE);
5857 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5858 for any override of as, ld and libraries. */
5859 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5860 + strlen (just_machine_suffix)
5861 + sizeof ("specs"));
5863 strcpy (specs_file, standard_exec_prefix);
5864 strcat (specs_file, just_machine_suffix);
5865 strcat (specs_file, "specs");
5866 if (access (specs_file, R_OK) == 0)
5867 read_specs (specs_file, TRUE);
5869 /* If not cross-compiling, look for startfiles in the standard places. */
5870 if (*cross_compile == '0')
5872 if (*md_exec_prefix)
5874 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5875 PREFIX_PRIORITY_LAST, 0, NULL);
5876 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5877 PREFIX_PRIORITY_LAST, 0, NULL);
5880 if (*md_startfile_prefix)
5881 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5882 PREFIX_PRIORITY_LAST, 0, NULL);
5884 if (*md_startfile_prefix_1)
5885 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5886 PREFIX_PRIORITY_LAST, 0, NULL);
5888 /* If standard_startfile_prefix is relative, base it on
5889 standard_exec_prefix. This lets us move the installed tree
5890 as a unit. If GCC_EXEC_PREFIX is defined, base
5891 standard_startfile_prefix on that as well. */
5892 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5893 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5894 PREFIX_PRIORITY_LAST, 0, NULL);
5897 if (gcc_exec_prefix)
5898 add_prefix (&startfile_prefixes,
5899 concat (gcc_exec_prefix, machine_suffix,
5900 standard_startfile_prefix, NULL),
5901 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5902 add_prefix (&startfile_prefixes,
5903 concat (standard_exec_prefix,
5905 standard_startfile_prefix, NULL),
5906 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5909 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5910 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5911 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5912 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5913 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5914 add_prefix (&startfile_prefixes, "./", NULL,
5915 PREFIX_PRIORITY_LAST, 1, NULL);
5920 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5922 add_prefix (&startfile_prefixes,
5923 concat (gcc_exec_prefix, machine_suffix,
5924 standard_startfile_prefix, NULL),
5925 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5928 /* Process any user specified specs in the order given on the command
5930 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5932 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5933 read_specs (filename ? filename : uptr->filename, FALSE);
5936 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5937 if (gcc_exec_prefix)
5938 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
5939 spec_version, dir_separator_str, NULL);
5941 /* Now we have the specs.
5942 Set the `valid' bits for switches that match anything in any spec. */
5944 validate_all_switches ();
5946 /* Now that we have the switches and the specs, set
5947 the subdirectory based on the options. */
5948 set_multilib_dir ();
5950 /* Warn about any switches that no pass was interested in. */
5952 for (i = 0; (int) i < n_switches; i++)
5953 if (! switches[i].validated)
5954 error ("unrecognized option `-%s'", switches[i].part1);
5956 /* Obey some of the options. */
5958 if (print_search_dirs)
5960 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5961 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5962 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5966 if (print_file_name)
5968 printf ("%s\n", find_file (print_file_name));
5972 if (print_prog_name)
5974 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5975 printf ("%s\n", (newname ? newname : print_prog_name));
5979 if (print_multi_lib)
5981 print_multilib_info ();
5985 if (print_multi_directory)
5987 if (multilib_dir == NULL)
5990 printf ("%s\n", multilib_dir);
5994 if (target_help_flag)
5996 /* Print if any target specific options.*/
5998 /* We do not exit here. Instead we have created a fake input file
5999 called 'target-dummy' which needs to be compiled, and we pass this
6000 on to the various sub-processes, along with the --target-help
6004 if (print_help_list)
6010 printf (_("\nFor bug reporting instructions, please see:\n"));
6011 printf ("%s.\n", GCCBUGURL);
6016 /* We do not exit here. Instead we have created a fake input file
6017 called 'help-dummy' which needs to be compiled, and we pass this
6018 on the various sub-processes, along with the --help switch. */
6026 notice ("Configured with: %s\n", configuration_arguments);
6028 #ifdef THREAD_MODEL_SPEC
6029 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6030 but there's no point in doing all this processing just to get
6031 thread_model back. */
6032 obstack_init (&obstack);
6033 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
6034 obstack_1grow (&obstack, '\0');
6035 thrmod = obstack_finish (&obstack);
6037 thrmod = thread_model;
6040 notice ("Thread model: %s\n", thrmod);
6042 /* compiler_version is truncated at the first space when initialized
6043 from version string, so truncate version_string at the first space
6044 before comparing. */
6045 for (n = 0; version_string[n]; n++)
6046 if (version_string[n] == ' ')
6049 if (! strncmp (version_string, compiler_version, n)
6050 && compiler_version[n] == 0)
6051 notice ("gcc version %s\n", version_string);
6053 notice ("gcc driver version %s executing gcc version %s\n",
6054 version_string, compiler_version);
6060 if (n_infiles == added_libraries)
6061 fatal ("no input files");
6063 /* Make a place to record the compiler output file names
6064 that correspond to the input files. */
6067 i += lang_specific_extra_outfiles;
6068 outfiles = (const char **) xcalloc (i, sizeof (char *));
6070 /* Record which files were specified explicitly as link input. */
6072 explicit_link_files = xcalloc (1, n_infiles);
6074 for (i = 0; (int) i < n_infiles; i++)
6076 int this_file_error = 0;
6078 /* Tell do_spec what to substitute for %i. */
6080 input_file_number = i;
6081 set_input (infiles[i].name);
6083 /* Use the same thing in %o, unless cp->spec says otherwise. */
6085 outfiles[i] = input_filename;
6087 /* Figure out which compiler from the file's suffix. */
6090 = lookup_compiler (infiles[i].name, input_filename_length,
6091 infiles[i].language);
6093 if (input_file_compiler)
6095 /* Ok, we found an applicable compiler. Run its spec. */
6097 if (input_file_compiler->spec[0] == '#')
6099 error ("%s: %s compiler not installed on this system",
6100 input_filename, &input_file_compiler->spec[1]);
6101 this_file_error = 1;
6105 value = do_spec (input_file_compiler->spec);
6107 this_file_error = 1;
6111 /* If this file's name does not contain a recognized suffix,
6112 record it as explicit linker input. */
6115 explicit_link_files[i] = 1;
6117 /* Clear the delete-on-failure queue, deleting the files in it
6118 if this compilation failed. */
6120 if (this_file_error)
6122 delete_failure_queue ();
6125 /* If this compilation succeeded, don't delete those files later. */
6126 clear_failure_queue ();
6129 /* Reset the output file name to the first input file name, for use
6130 with %b in LINK_SPEC on a target that prefers not to emit a.out
6133 set_input (infiles[0].name);
6135 if (error_count == 0)
6137 /* Make sure INPUT_FILE_NUMBER points to first available open
6139 input_file_number = n_infiles;
6140 if (lang_specific_pre_link ())
6144 /* Run ld to link all the compiler output files. */
6146 if (error_count == 0)
6148 int tmp = execution_count;
6150 /* We'll use ld if we can't find collect2. */
6151 if (! strcmp (linker_name_spec, "collect2"))
6153 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
6155 linker_name_spec = "ld";
6157 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6159 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
6160 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
6162 value = do_spec (link_command_spec);
6165 linker_was_run = (tmp != execution_count);
6168 /* If options said don't run linker,
6169 complain about input files to be given to the linker. */
6171 if (! linker_was_run && error_count == 0)
6172 for (i = 0; (int) i < n_infiles; i++)
6173 if (explicit_link_files[i])
6174 error ("%s: linker input file unused because linking not done",
6177 /* Delete some or all of the temporary files we made. */
6180 delete_failure_queue ();
6181 delete_temp_files ();
6183 if (print_help_list)
6185 printf (("\nFor bug reporting instructions, please see:\n"));
6186 printf ("%s\n", GCCBUGURL);
6189 return (signal_count != 0 ? 2
6190 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6194 /* Find the proper compilation spec for the file name NAME,
6195 whose length is LENGTH. LANGUAGE is the specified language,
6196 or 0 if this file is to be passed to the linker. */
6198 static struct compiler *
6199 lookup_compiler (name, length, language)
6202 const char *language;
6204 struct compiler *cp;
6206 /* If this was specified by the user to be a linker input, indicate that. */
6207 if (language != 0 && language[0] == '*')
6210 /* Otherwise, look for the language, if one is spec'd. */
6213 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6214 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6217 error ("language %s not recognized", language);
6221 /* Look for a suffix. */
6222 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6224 if (/* The suffix `-' matches only the file name `-'. */
6225 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6226 || (strlen (cp->suffix) < length
6227 /* See if the suffix matches the end of NAME. */
6228 && !strcmp (cp->suffix,
6229 name + length - strlen (cp->suffix))
6234 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6235 /* look again, but case-insensitively this time. */
6237 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6239 if (/* The suffix `-' matches only the file name `-'. */
6240 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6241 || (strlen (cp->suffix) < length
6242 /* See if the suffix matches the end of NAME. */
6243 && ((!strcmp (cp->suffix,
6244 name + length - strlen (cp->suffix))
6245 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6246 && !strcasecmp (cp->suffix,
6247 name + length - strlen (cp->suffix)))
6253 if (cp >= compilers)
6255 if (cp->spec[0] != '@')
6256 /* A non-alias entry: return it. */
6259 /* An alias entry maps a suffix to a language.
6260 Search for the language; pass 0 for NAME and LENGTH
6261 to avoid infinite recursion if language not found. */
6262 return lookup_compiler (NULL, 0, cp->spec + 1);
6268 save_string (s, len)
6272 char *result = xmalloc (len + 1);
6274 memcpy (result, s, len);
6280 pfatal_with_name (name)
6283 perror_with_name (name);
6284 delete_temp_files ();
6289 perror_with_name (name)
6292 error ("%s: %s", name, xstrerror (errno));
6296 pfatal_pexecute (errmsg_fmt, errmsg_arg)
6297 const char *errmsg_fmt;
6298 const char *errmsg_arg;
6302 int save_errno = errno;
6304 /* Space for trailing '\0' is in %s. */
6305 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
6306 sprintf (msg, errmsg_fmt, errmsg_arg);
6312 pfatal_with_name (errmsg_fmt);
6315 /* Output an error message and exit */
6320 fatal ("internal gcc abort");
6323 /* Output an error message and exit */
6326 fatal VPARAMS ((const char *msgid, ...))
6328 VA_OPEN (ap, msgid);
6329 VA_FIXEDARG (ap, const char *, msgid);
6331 fprintf (stderr, "%s: ", programname);
6332 vfprintf (stderr, _(msgid), ap);
6334 fprintf (stderr, "\n");
6335 delete_temp_files ();
6340 error VPARAMS ((const char *msgid, ...))
6342 VA_OPEN (ap, msgid);
6343 VA_FIXEDARG (ap, const char *, msgid);
6345 fprintf (stderr, "%s: ", programname);
6346 vfprintf (stderr, _(msgid), ap);
6349 fprintf (stderr, "\n");
6353 notice VPARAMS ((const char *msgid, ...))
6355 VA_OPEN (ap, msgid);
6356 VA_FIXEDARG (ap, const char *, msgid);
6358 vfprintf (stderr, _(msgid), ap);
6363 validate_all_switches ()
6365 struct compiler *comp;
6368 struct spec_list *spec;
6370 for (comp = compilers; comp->spec; comp++)
6374 if (c == '%' && *p == '{')
6375 /* We have a switch spec. */
6376 validate_switches (p + 1);
6379 /* Look through the linked list of specs read from the specs file. */
6380 for (spec = specs; spec; spec = spec->next)
6382 p = *(spec->ptr_spec);
6384 if (c == '%' && *p == '{')
6385 /* We have a switch spec. */
6386 validate_switches (p + 1);
6389 p = link_command_spec;
6391 if (c == '%' && *p == '{')
6392 /* We have a switch spec. */
6393 validate_switches (p + 1);
6396 /* Look at the switch-name that comes after START
6397 and mark as valid all supplied switches that match it. */
6400 validate_switches (start)
6403 const char *p = start;
6420 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
6425 else if (p[-1] == '*')
6427 /* Mark all matching switches as valid. */
6428 for (i = 0; i < n_switches; i++)
6429 if (!strncmp (switches[i].part1, filter, p - filter - 1))
6430 switches[i].validated = 1;
6434 /* Mark an exact matching switch as valid. */
6435 for (i = 0; i < n_switches; i++)
6437 if (!strncmp (switches[i].part1, filter, p - filter)
6438 && switches[i].part1[p - filter] == 0)
6439 switches[i].validated = 1;
6443 if (*p++ == '|' || p[-1] == '&')
6447 /* Check whether a particular argument was used. The first time we
6448 canonicalize the switches to keep only the ones we care about. */
6458 const char *replace;
6463 static struct mswitchstr *mswitches;
6464 static int n_mswitches;
6469 struct mswitchstr *matches;
6473 /* Break multilib_matches into the component strings of string
6474 and replacement string. */
6475 for (q = multilib_matches; *q != '\0'; q++)
6480 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6482 q = multilib_matches;
6492 matches[i].len = q - matches[i].str;
6494 matches[i].replace = ++q;
6495 while (*q != ';' && *q != '\0')
6501 matches[i].rep_len = q - matches[i].replace;
6507 /* Now build a list of the replacement string for switches that we care
6508 about. Make sure we allocate at least one entry. This prevents
6509 xmalloc from calling fatal, and prevents us from re-executing this
6512 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6513 * (n_switches ? n_switches : 1));
6514 for (i = 0; i < n_switches; i++)
6516 int xlen = strlen (switches[i].part1);
6517 for (j = 0; j < cnt; j++)
6518 if (xlen == matches[j].len
6519 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6521 mswitches[n_mswitches].str = matches[j].replace;
6522 mswitches[n_mswitches].len = matches[j].rep_len;
6523 mswitches[n_mswitches].replace = (char *) 0;
6524 mswitches[n_mswitches].rep_len = 0;
6531 for (i = 0; i < n_mswitches; i++)
6532 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6539 default_arg (p, len)
6543 const char *start, *end;
6545 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6547 while (*start == ' ' || *start == '\t')
6553 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6556 if ((end - start) == len && strncmp (p, start, len) == 0)
6566 /* Work out the subdirectory to use based on the options. The format of
6567 multilib_select is a list of elements. Each element is a subdirectory
6568 name followed by a list of options followed by a semicolon. The format
6569 of multilib_exclusions is the same, but without the preceding
6570 directory. First gcc will check the exclusions, if none of the options
6571 beginning with an exclamation point are present, and all of the other
6572 options are present, then we will ignore this completely. Passing
6573 that, gcc will consider each multilib_select in turn using the same
6574 rules for matching the options. If a match is found, that subdirectory
6581 unsigned int this_path_len;
6582 const char *this_path, *this_arg;
6586 p = multilib_exclusions;
6589 /* Ignore newlines. */
6596 /* Check the arguments. */
6610 while (*p != ' ' && *p != ';')
6617 if (*this_arg != '!')
6625 ok = used_arg (this_arg, p - this_arg);
6639 p = multilib_select;
6642 /* Ignore newlines. */
6649 /* Get the initial path. */
6657 this_path_len = p - this_path;
6659 /* Check the arguments. */
6674 while (*p != ' ' && *p != ';')
6681 if (*this_arg != '!')
6689 /* If this is a default argument, we can just ignore it.
6690 This is true even if this_arg begins with '!'. Beginning
6691 with '!' does not mean that this argument is necessarily
6692 inappropriate for this library: it merely means that
6693 there is a more specific library which uses this
6694 argument. If this argument is a default, we need not
6695 consider that more specific library. */
6696 if (! default_arg (this_arg, p - this_arg))
6698 ok = used_arg (this_arg, p - this_arg);
6709 if (this_path_len != 1
6710 || this_path[0] != '.')
6712 char *new_multilib_dir = xmalloc (this_path_len + 1);
6713 strncpy (new_multilib_dir, this_path, this_path_len);
6714 new_multilib_dir[this_path_len] = '\0';
6715 multilib_dir = new_multilib_dir;
6724 /* Print out the multiple library subdirectory selection
6725 information. This prints out a series of lines. Each line looks
6726 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6727 required. Only the desired options are printed out, the negative
6728 matches. The options are print without a leading dash. There are
6729 no spaces to make it easy to use the information in the shell.
6730 Each subdirectory is printed only once. This assumes the ordering
6731 generated by the genmultilib script. Also, we leave out ones that match
6735 print_multilib_info ()
6737 const char *p = multilib_select;
6738 const char *last_path = 0, *this_path;
6740 unsigned int last_path_len = 0;
6745 /* Ignore newlines. */
6752 /* Get the initial path. */
6761 /* Check for matches with the multilib_exclusions. We don't bother
6762 with the '!' in either list. If any of the exclusion rules match
6763 all of its options with the select rule, we skip it. */
6765 const char *e = multilib_exclusions;
6766 const char *this_arg;
6771 /* Ignore newlines. */
6778 /* Check the arguments. */
6795 while (*e != ' ' && *e != ';')
6806 int len = e - this_arg;
6813 while (*q != ' ' && *q != ';')
6820 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6821 default_arg (this_arg, e - this_arg))
6851 /* If this is a duplicate, skip it. */
6852 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6853 && ! strncmp (last_path, this_path, last_path_len));
6855 last_path = this_path;
6856 last_path_len = p - this_path;
6859 /* If this directory requires any default arguments, we can skip
6860 it. We will already have printed a directory identical to
6861 this one which does not require that default argument. */
6879 while (*q != ' ' && *q != ';')
6887 && default_arg (arg, q - arg))
6902 for (p1 = last_path; p1 < p; p1++)
6921 use_arg = *p != '!';
6926 while (*p != ' ' && *p != ';')
6941 /* If there are extra options, print them now. */
6942 if (multilib_extra && *multilib_extra)
6944 int print_at = TRUE;
6947 for (q = multilib_extra; *q != '\0'; q++)