1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
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
98 /* By default there is no special suffix for host executables. */
99 #ifdef HOST_EXECUTABLE_SUFFIX
100 #define HAVE_HOST_EXECUTABLE_SUFFIX
102 #define HOST_EXECUTABLE_SUFFIX ""
105 /* By default, the suffix for target object files is ".o". */
106 #ifdef TARGET_OBJECT_SUFFIX
107 #define HAVE_TARGET_OBJECT_SUFFIX
109 #define TARGET_OBJECT_SUFFIX ".o"
113 /* FIXME: the location independence code for VMS is hairier than this,
114 and hasn't been written. */
120 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
122 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
123 #ifndef LIBRARY_PATH_ENV
124 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
128 #define kill(p,s) raise(s)
131 /* If a stage of compilation returns an exit status >= 1,
132 compilation of that file ceases. */
134 #define MIN_FATAL_STATUS 1
136 /* Flag set by cppspec.c to 1. */
139 /* Flag saying to pass the greatest exit code returned by a sub-process
140 to the calling program. */
141 static int pass_exit_codes
;
143 /* Definition of string containing the arguments given to configure. */
144 #include "configargs.h"
146 /* Flag saying to print the directories gcc will search through looking for
147 programs, libraries, etc. */
149 static int print_search_dirs
;
151 /* Flag saying to print the full filename of this file
152 as found through our usual search mechanism. */
154 static const char *print_file_name
= NULL
;
156 /* As print_file_name, but search for executable file. */
158 static const char *print_prog_name
= NULL
;
160 /* Flag saying to print the relative path we'd use to
161 find libgcc.a given the current compiler flags. */
163 static int print_multi_directory
;
165 /* Flag saying to print the relative path we'd use to
166 find OS libraries given the current compiler flags. */
168 static int print_multi_os_directory
;
170 /* Flag saying to print the list of subdirectories and
171 compiler flags used to select them in a standard form. */
173 static int print_multi_lib
;
175 /* Flag saying to print the command line options understood by gcc and its
178 static int print_help_list
;
180 /* Flag indicating whether we should print the command and arguments */
182 static int verbose_flag
;
184 /* Flag indicating whether we should ONLY print the command and
185 arguments (like verbose_flag) without executing the command.
186 Displayed arguments are quoted so that the generated command
187 line is suitable for execution. This is intended for use in
188 shell scripts to capture the driver-generated command line. */
189 static int verbose_only_flag
;
191 /* Flag indicating to print target specific command line options. */
193 static int target_help_flag
;
195 /* Flag indicating whether we should report subprocess execution times
196 (if this is supported by the system - see pexecute.c). */
198 static int report_times
;
200 /* Nonzero means write "temp" files in source directory
201 and use the source file's name in them, and don't delete them. */
203 static int save_temps_flag
;
205 /* The compiler version. */
207 static const char *compiler_version
;
209 /* The target version specified with -V */
211 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
213 /* The target machine specified with -b. */
215 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
217 /* Nonzero if cross-compiling.
218 When -b is used, the value comes from the `specs' file. */
221 static const char *cross_compile
= "1";
223 static const char *cross_compile
= "0";
226 #ifdef MODIFY_TARGET_NAME
228 /* Information on how to alter the target name based on a command-line
229 switch. The only case we support now is simply appending or deleting a
230 string to or from the end of the first part of the configuration name. */
232 static const struct modify_target
234 const char *const sw
;
235 const enum add_del
{ADD
, DELETE
} add_del
;
236 const char *const str
;
238 modify_target
[] = MODIFY_TARGET_NAME
;
241 /* The number of errors that have occurred; the link phase will not be
242 run if this is nonzero. */
243 static int error_count
= 0;
245 /* Greatest exit code of sub-processes that has been encountered up to
247 static int greatest_status
= 1;
249 /* This is the obstack which we use to allocate many strings. */
251 static struct obstack obstack
;
253 /* This is the obstack to build an environment variable to pass to
254 collect2 that describes all of the relevant switches of what to
255 pass the compiler in building the list of pointers to constructors
258 static struct obstack collect_obstack
;
260 /* These structs are used to collect resource usage information for
262 #ifdef HAVE_GETRUSAGE
263 static struct rusage rus
, prus
;
266 /* Forward declaration for prototypes. */
269 static void init_spec
PARAMS ((void));
271 static char **split_directories
PARAMS ((const char *, int *));
272 static void free_split_directories
PARAMS ((char **));
273 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
275 static void store_arg
PARAMS ((const char *, int, int));
276 static char *load_specs
PARAMS ((const char *));
277 static void read_specs
PARAMS ((const char *, int));
278 static void set_spec
PARAMS ((const char *, const char *));
279 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
280 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
281 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
282 static int access_check
PARAMS ((const char *, int));
283 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *,
285 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
286 const char *, int, int, int *, int));
287 static void translate_options
PARAMS ((int *, const char *const **));
288 static char *skip_whitespace
PARAMS ((char *));
289 static void delete_if_ordinary
PARAMS ((const char *));
290 static void delete_temp_files
PARAMS ((void));
291 static void delete_failure_queue
PARAMS ((void));
292 static void clear_failure_queue
PARAMS ((void));
293 static int check_live_switch
PARAMS ((int, int));
294 static const char *handle_braces
PARAMS ((const char *));
295 static const struct spec_function
*lookup_spec_function
PARAMS ((const char *));
296 static const char *eval_spec_function
PARAMS ((const char *, const char *));
297 static const char *handle_spec_function
PARAMS ((const char *));
298 static char *save_string
PARAMS ((const char *, int));
299 static void set_collect_gcc_options
PARAMS ((void));
300 static int do_spec_1
PARAMS ((const char *, int, const char *));
301 static int do_spec_2
PARAMS ((const char *));
302 static void do_self_spec
PARAMS ((const char *));
303 static const char *find_file
PARAMS ((const char *));
304 static int is_directory
PARAMS ((const char *, const char *, int));
305 static void validate_switches
PARAMS ((const char *));
306 static void validate_all_switches
PARAMS ((void));
307 static void give_switch
PARAMS ((int, int, int));
308 static int used_arg
PARAMS ((const char *, int));
309 static int default_arg
PARAMS ((const char *, int));
310 static void set_multilib_dir
PARAMS ((void));
311 static void print_multilib_info
PARAMS ((void));
312 static void perror_with_name
PARAMS ((const char *));
313 static void pfatal_pexecute
PARAMS ((const char *, const char *))
315 static void notice
PARAMS ((const char *, ...))
317 static void display_help
PARAMS ((void));
318 static void add_preprocessor_option
PARAMS ((const char *, int));
319 static void add_assembler_option
PARAMS ((const char *, int));
320 static void add_linker_option
PARAMS ((const char *, int));
321 static void process_command
PARAMS ((int, const char *const *));
322 static int execute
PARAMS ((void));
323 static void alloc_args
PARAMS ((void));
324 static void clear_args
PARAMS ((void));
325 static void fatal_error
PARAMS ((int));
326 #ifdef ENABLE_SHARED_LIBGCC
327 static void init_gcc_specs
PARAMS ((struct obstack
*,
328 const char *, const char *,
331 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
332 static const char *convert_filename
PARAMS ((const char *, int, int));
335 static const char *if_exists_spec_function
PARAMS ((int, const char **));
337 /* The Specs Language
339 Specs are strings containing lines, each of which (if not blank)
340 is made up of a program name, and arguments separated by spaces.
341 The program name must be exact and start from root, since no path
342 is searched and it is unreliable to depend on the current working directory.
343 Redirection of input or output is not supported; the subprograms must
344 accept filenames saying what files to read and write.
346 In addition, the specs can contain %-sequences to substitute variable text
347 or for conditional text. Here is a table of all defined %-sequences.
348 Note that spaces are not generated automatically around the results of
349 expanding these sequences; therefore, you can concatenate them together
350 or with constant text in a single argument.
352 %% substitute one % into the program name or argument.
353 %i substitute the name of the input file being processed.
354 %b substitute the basename of the input file being processed.
355 This is the substring up to (and not including) the last period
356 and not including the directory.
357 %B same as %b, but include the file suffix (text after the last period).
359 substitute a file name that has suffix SUFFIX and is chosen
360 once per compilation, and mark the argument a la %d. To reduce
361 exposure to denial-of-service attacks, the file name is now
362 chosen in a way that is hard to predict even when previously
363 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
364 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
365 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
366 had been pre-processed. Previously, %g was simply substituted
367 with a file name chosen once per compilation, without regard
368 to any appended suffix (which was therefore treated just like
369 ordinary text), making such attacks more likely to succeed.
371 like %g, but generates a new temporary file name even if %uSUFFIX
374 substitutes the last file name generated with %uSUFFIX, generating a
375 new one if there is no such last file name. In the absence of any
376 %uSUFFIX, this is just like %gSUFFIX, except they don't share
377 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
378 would involve the generation of two distinct file names, one
379 for each `%g.s' and another for each `%U.s'. Previously, %U was
380 simply substituted with a file name chosen for the previous %u,
381 without regard to any appended suffix.
383 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
384 writable, and if save-temps is off; otherwise, substitute the name
385 of a temporary file, just like %u. This temporary file is not
386 meant for communication between processes, but rather as a junk
389 substitutes .SUFFIX for the suffixes of a matched switch's args when
390 it is subsequently output with %*. SUFFIX is terminated by the next
392 %d marks the argument containing or following the %d as a
393 temporary file name, so that that file will be deleted if CC exits
394 successfully. Unlike %g, this contributes no text to the argument.
395 %w marks the argument containing or following the %w as the
396 "output file" of this compilation. This puts the argument
397 into the sequence of arguments that %o will substitute later.
399 like %{...} but mark last argument supplied within
400 as a file to be deleted on failure.
401 %o substitutes the names of all the output files, with spaces
402 automatically placed around them. You should write spaces
403 around the %o as well or the results are undefined.
404 %o is for use in the specs for running the linker.
405 Input files whose names have no recognized suffix are not compiled
406 at all, but they are included among the output files, so they will
408 %O substitutes the suffix for object files. Note that this is
409 handled specially when it immediately follows %g, %u, or %U
410 (with or without a suffix argument) because of the need for
411 those to form complete file names. The handling is such that
412 %O is treated exactly as if it had already been substituted,
413 except that %g, %u, and %U do not currently support additional
414 SUFFIX characters following %O as they would following, for
416 %p substitutes the standard macro predefinitions for the
417 current target machine. Use this when running cpp.
418 %P like %p, but puts `__' before and after the name of each macro.
419 (Except macros that already have __.)
421 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
422 %s current argument is the name of a library or startup file of some sort.
423 Search for that file in a standard list of directories
424 and substitute the full name found.
425 %eSTR Print STR as an error message. STR is terminated by a newline.
426 Use this when inconsistent options are detected.
427 %nSTR Print STR as an notice. STR is terminated by a newline.
428 %x{OPTION} Accumulate an option for %X.
429 %X Output the accumulated linker options specified by compilations.
430 %Y Output the accumulated assembler options specified by compilations.
431 %Z Output the accumulated preprocessor options specified by compilations.
432 %v1 Substitute the major version number of GCC.
433 (For version 2.5.3, this is 2.)
434 %v2 Substitute the minor version number of GCC.
435 (For version 2.5.3, this is 5.)
436 %v3 Substitute the patch level number of GCC.
437 (For version 2.5.3, this is 3.)
438 %a process ASM_SPEC as a spec.
439 This allows config.h to specify part of the spec for running as.
440 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
441 used here. This can be used to run a post-processor after the
442 assembler has done its job.
443 %D Dump out a -L option for each directory in startfile_prefixes.
444 If multilib_dir is set, extra entries are generated with it affixed.
445 %l process LINK_SPEC as a spec.
446 %L process LIB_SPEC as a spec.
447 %G process LIBGCC_SPEC as a spec.
448 %M output multilib_dir with directory separators replaced with "_";
449 if multilib_dir is not set or is ".", output "".
450 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
451 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
452 %C process CPP_SPEC as a spec.
453 %1 process CC1_SPEC as a spec.
454 %2 process CC1PLUS_SPEC as a spec.
455 %| output "-" if the input for the current command is coming from a pipe.
456 %* substitute the variable part of a matched option. (See below.)
457 Note that each comma in the substituted string is replaced by
460 Call the named function FUNCTION, passing it ARGS. ARGS is
461 first processed as a nested spec string, then split into an
462 argument vector in the usual fashion. The function returns
463 a string which is processed as if it had appeared literally
464 as part of the current spec.
465 %{S} substitutes the -S switch, if that switch was given to CC.
466 If that switch was not specified, this substitutes nothing.
467 Here S is a metasyntactic variable.
468 %{S*} substitutes all the switches specified to CC whose names start
469 with -S. This is used for -o, -I, etc; switches that take
470 arguments. CC considers `-o foo' as being one switch whose
471 name starts with `o'. %{o*} would substitute this text,
472 including the space; thus, two arguments would be generated.
473 %{^S*} likewise, but don't put a blank between a switch and any args.
474 %{S*&T*} likewise, but preserve order of S and T options (the order
475 of S and T in the spec is not significant). Can be any number
476 of ampersand-separated variables; for each the wild card is
477 optional. Useful for CPP as %{D*&U*&A*}.
478 %{S*:X} substitutes X if one or more switches whose names start with -S are
479 specified to CC. Note that the tail part of the -S option
480 (i.e. the part matched by the `*') will be substituted for each
481 occurrence of %* within X.
482 %{<S} remove all occurrences of -S from the command line.
483 Note - this option is position dependent. % commands in the
484 spec string before this option will see -S, % commands in the
485 spec string after this option will not.
486 %{S:X} substitutes X, but only if the -S switch was given to CC.
487 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
488 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
489 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
490 %{.S:X} substitutes X, but only if processing a file with suffix S.
491 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
492 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
493 combined with ! and . as above binding stronger than the OR.
494 %(Spec) processes a specification defined in a specs file as *Spec:
495 %[Spec] as above, but put __ around -D arguments
497 The conditional text X in a %{S:X} or %{!S:X} construct may contain
498 other nested % constructs or spaces, or even newlines. They are
499 processed as usual, as described above.
501 The -O, -f, -m, and -W switches are handled specifically in these
502 constructs. If another value of -O or the negated form of a -f, -m, or
503 -W switch is found later in the command line, the earlier switch
504 value is ignored, except with {S*} where S is just one letter; this
505 passes all matching options.
507 The character | at the beginning of the predicate text is used to indicate
508 that a command should be piped to the following command, but only if -pipe
511 Note that it is built into CC which switches take arguments and which
512 do not. You might think it would be useful to generalize this to
513 allow each compiler's spec to say which switches take arguments. But
514 this cannot be done in a consistent fashion. CC cannot even decide
515 which input files have been specified without knowing which switches
516 take arguments, and it must know which input files to compile in order
517 to tell which compilers to run.
519 CC also knows implicitly that arguments starting in `-l' are to be
520 treated as compiler output files, and passed to the linker in their
521 proper position among the other output files. */
523 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
525 /* config.h can define ASM_SPEC to provide extra args to the assembler
526 or extra switch-translations. */
531 /* config.h can define ASM_FINAL_SPEC to run a post processor after
532 the assembler has run. */
533 #ifndef ASM_FINAL_SPEC
534 #define ASM_FINAL_SPEC ""
537 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
538 or extra switch-translations. */
543 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
544 or extra switch-translations. */
549 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
550 or extra switch-translations. */
552 #define CC1PLUS_SPEC ""
555 /* config.h can define LINK_SPEC to provide extra args to the linker
556 or extra switch-translations. */
561 /* config.h can define LIB_SPEC to override the default libraries. */
563 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
566 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
569 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
570 /* Have gcc do the search for libgcc.a. */
571 #define LIBGCC_SPEC "libgcc.a%s"
573 #define LIBGCC_SPEC "-lgcc"
577 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
578 #ifndef STARTFILE_SPEC
579 #define STARTFILE_SPEC \
580 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
583 /* config.h can define SWITCHES_NEED_SPACES to control which options
584 require spaces between the option and the argument. */
585 #ifndef SWITCHES_NEED_SPACES
586 #define SWITCHES_NEED_SPACES ""
589 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
591 #define ENDFILE_SPEC ""
595 #define LINKER_NAME "collect2"
598 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
600 #ifndef ASM_DEBUG_SPEC
601 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
602 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
603 # define ASM_DEBUG_SPEC \
604 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
605 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
606 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
608 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
609 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
611 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
612 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
616 #ifndef ASM_DEBUG_SPEC
617 # define ASM_DEBUG_SPEC ""
620 /* Here is the spec for running the linker, after compiling all files. */
622 /* This is overridable by the target in case they need to specify the
623 -lgcc and -lc order specially, yet not require them to override all
624 of LINK_COMMAND_SPEC. */
625 #ifndef LINK_GCC_C_SEQUENCE_SPEC
626 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
629 /* -u* was put back because both BSD and SysV seem to support it. */
630 /* %{static:} simply prevents an error message if the target machine
631 doesn't handle -static. */
632 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
633 scripts which exist in user specified directories, or in standard
635 #ifndef LINK_COMMAND_SPEC
636 #define LINK_COMMAND_SPEC "\
637 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
638 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
639 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
640 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
641 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
644 #ifndef LINK_LIBGCC_SPEC
645 # ifdef LINK_LIBGCC_SPECIAL
646 /* Don't generate -L options for startfile prefix list. */
647 # define LINK_LIBGCC_SPEC ""
649 /* Do generate them. */
650 # define LINK_LIBGCC_SPEC "%D"
654 #ifndef STARTFILE_PREFIX_SPEC
655 # define STARTFILE_PREFIX_SPEC ""
658 static const char *asm_debug
;
659 static const char *cpp_spec
= CPP_SPEC
;
660 static const char *cpp_predefines
= CPP_PREDEFINES
;
661 static const char *cc1_spec
= CC1_SPEC
;
662 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
663 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
664 static const char *asm_spec
= ASM_SPEC
;
665 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
666 static const char *link_spec
= LINK_SPEC
;
667 static const char *lib_spec
= LIB_SPEC
;
668 static const char *libgcc_spec
= LIBGCC_SPEC
;
669 static const char *endfile_spec
= ENDFILE_SPEC
;
670 static const char *startfile_spec
= STARTFILE_SPEC
;
671 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
672 static const char *linker_name_spec
= LINKER_NAME
;
673 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
674 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
675 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
677 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
678 There should be no need to override these in target dependent files,
679 but we need to copy them to the specs file so that newer versions
680 of the GCC driver can correctly drive older tool chains with the
681 appropriate -B options. */
683 /* When cpplib handles traditional preprocessing, get rid of this, and
684 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
685 that we default the front end language better. */
686 static const char *trad_capable_cpp
=
687 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
689 /* We don't wrap .d files in %W{} since a missing .d file, and
690 therefore no dependency entry, confuses make into thinking a .o
691 file that happens to exist is up-to-date. */
692 static const char *cpp_unique_options
=
693 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
694 %{CC:%{!E:%eGNU C does not support -CC without using -E}}\
695 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %I\
696 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
697 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
698 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
699 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
700 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
701 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
702 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
705 /* This contains cpp options which are common with cc1_options and are passed
706 only when preprocessing only to avoid duplication. We pass the cc1 spec
707 options to the preprocessor so that it the cc1 spec may manipulate
708 options used to set target flags. Those special target flags settings may
709 in turn cause preprocessor symbols to be defined specially. */
710 static const char *cpp_options
=
711 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
714 /* This contains cpp options which are not passed when the preprocessor
715 output will be used by another program. */
716 static const char *cpp_debug_options
= "%{d*}";
718 /* NB: This is shared amongst all front-ends. */
719 static const char *cc1_options
=
720 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
721 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
722 -auxbase%{c|S:%{o*:-strip %*}%{!o*: %b}}%{!c:%{!S: %b}}\
723 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
724 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
725 %{Qn:-fno-ident} %{--help:--help}\
726 %{--target-help:--target-help}\
727 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
728 %{fsyntax-only:-o %j} %{-param*}";
730 static const char *asm_options
=
731 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
733 static const char *invoke_as
=
734 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
736 /* Some compilers have limits on line lengths, and the multilib_select
737 and/or multilib_matches strings can be very long, so we build them at
739 static struct obstack multilib_obstack
;
740 static const char *multilib_select
;
741 static const char *multilib_matches
;
742 static const char *multilib_defaults
;
743 static const char *multilib_exclusions
;
744 #include "multilib.h"
746 /* Check whether a particular argument is a default argument. */
748 #ifndef MULTILIB_DEFAULTS
749 #define MULTILIB_DEFAULTS { "" }
752 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
754 #ifndef DRIVER_SELF_SPECS
755 #define DRIVER_SELF_SPECS ""
758 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
762 struct user_specs
*next
;
763 const char *filename
;
766 static struct user_specs
*user_specs_head
, *user_specs_tail
;
768 /* This defines which switch letters take arguments. */
770 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
771 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
772 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
773 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
774 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'B' || (CHAR) == 'b')
776 #ifndef SWITCH_TAKES_ARG
777 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
780 /* This defines which multi-letter switches take arguments. */
782 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
783 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
784 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
785 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
786 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
787 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
788 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
789 || !strcmp (STR, "specs") \
790 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
792 #ifndef WORD_SWITCH_TAKES_ARG
793 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
796 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
797 /* This defines which switches stop a full compilation. */
798 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
799 ((CHAR) == 'c' || (CHAR) == 'S')
801 #ifndef SWITCH_CURTAILS_COMPILATION
802 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
803 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
807 /* Record the mapping from file suffixes for compilation specs. */
811 const char *suffix
; /* Use this compiler for input files
812 whose names end in this suffix. */
814 const char *spec
; /* To use this compiler, run this spec. */
816 const char *cpp_spec
; /* If non-NULL, substitute this spec
817 for `%C', rather than the usual
821 /* Pointer to a vector of `struct compiler' that gives the spec for
822 compiling a file, based on its suffix.
823 A file that does not end in any of these suffixes will be passed
824 unchanged to the loader and nothing else will be done to it.
826 An entry containing two 0s is used to terminate the vector.
828 If multiple entries match a file, the last matching one is used. */
830 static struct compiler
*compilers
;
832 /* Number of entries in `compilers', not counting the null terminator. */
834 static int n_compilers
;
836 /* The default list of file name suffixes and their compilation specs. */
838 static const struct compiler default_compilers
[] =
840 /* Add lists of suffixes of known languages here. If those languages
841 were not present when we built the driver, we will hit these copies
842 and be given a more meaningful error than "file not used since
843 linking is not done". */
844 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
845 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
846 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
848 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
849 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
850 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
851 {".r", "#Ratfor", 0},
852 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
853 {".java", "#Java", 0}, {".class", "#Java", 0},
854 {".zip", "#Java", 0}, {".jar", "#Java", 0},
855 /* Next come the entries for C. */
858 /* cc1 has an integrated ISO C preprocessor. We should invoke the
859 external preprocessor if -save-temps is given. */
860 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
862 %{traditional|ftraditional:\
863 %eGNU C no longer supports -traditional without -E}\
864 %{save-temps|traditional-cpp:%(trad_capable_cpp) \
865 %(cpp_options) %b.i \n\
866 cc1 -fpreprocessed %b.i %(cc1_options)}\
867 %{!save-temps:%{!traditional-cpp:\
868 cc1 %(cpp_unique_options) %(cc1_options)}}\
869 %{!fsyntax-only:%(invoke_as)}}}}", 0},
871 "%{!E:%e-E required when input is from standard input}\
872 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0},
873 {".h", "@c-header", 0},
875 "%{!E:%ecompilation of header file requested} \
876 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)",
878 {".i", "@cpp-output", 0},
880 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
881 {".s", "@assembler", 0},
883 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
884 {".S", "@assembler-with-cpp", 0},
885 {"@assembler-with-cpp",
886 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
887 %{E|M|MM:%(cpp_debug_options)}\
888 %{!M:%{!MM:%{!E:%{!S:-o %{|!pipe:%g.s} |\n\
889 as %(asm_debug) %(asm_options) %{!pipe:%g.s} %A }}}}", 0},
891 /* Mark end of table */
895 /* Number of elements in default_compilers, not counting the terminator. */
897 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
899 /* A vector of options to give to the linker.
900 These options are accumulated by %x,
901 and substituted into the linker command with %X. */
902 static int n_linker_options
;
903 static char **linker_options
;
905 /* A vector of options to give to the assembler.
906 These options are accumulated by -Wa,
907 and substituted into the assembler command with %Y. */
908 static int n_assembler_options
;
909 static char **assembler_options
;
911 /* A vector of options to give to the preprocessor.
912 These options are accumulated by -Wp,
913 and substituted into the preprocessor command with %Z. */
914 static int n_preprocessor_options
;
915 static char **preprocessor_options
;
917 /* Define how to map long options into short ones. */
919 /* This structure describes one mapping. */
922 /* The long option's name. */
923 const char *const name
;
924 /* The equivalent short option. */
925 const char *const equivalent
;
926 /* Argument info. A string of flag chars; NULL equals no options.
927 a => argument required.
928 o => argument optional.
929 j => join argument to equivalent, making one word.
930 * => require other text after NAME as an argument. */
931 const char *const arg_info
;
934 /* This is the table of mappings. Mappings are tried sequentially
935 for each option encountered; the first one that matches, wins. */
937 static const struct option_map option_map
[] =
939 {"--all-warnings", "-Wall", 0},
940 {"--ansi", "-ansi", 0},
941 {"--assemble", "-S", 0},
942 {"--assert", "-A", "a"},
943 {"--classpath", "-fclasspath=", "aj"},
944 {"--bootclasspath", "-fbootclasspath=", "aj"},
945 {"--CLASSPATH", "-fclasspath=", "aj"},
946 {"--comments", "-C", 0},
947 {"--comments-in-macros", "-CC", 0},
948 {"--compile", "-c", 0},
949 {"--debug", "-g", "oj"},
950 {"--define-macro", "-D", "aj"},
951 {"--dependencies", "-M", 0},
952 {"--dump", "-d", "a"},
953 {"--dumpbase", "-dumpbase", "a"},
954 {"--entry", "-e", 0},
955 {"--extra-warnings", "-W", 0},
956 {"--for-assembler", "-Wa", "a"},
957 {"--for-linker", "-Xlinker", "a"},
958 {"--force-link", "-u", "a"},
959 {"--imacros", "-imacros", "a"},
960 {"--include", "-include", "a"},
961 {"--include-barrier", "-I-", 0},
962 {"--include-directory", "-I", "aj"},
963 {"--include-directory-after", "-idirafter", "a"},
964 {"--include-prefix", "-iprefix", "a"},
965 {"--include-with-prefix", "-iwithprefix", "a"},
966 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
967 {"--include-with-prefix-after", "-iwithprefix", "a"},
968 {"--language", "-x", "a"},
969 {"--library-directory", "-L", "a"},
970 {"--machine", "-m", "aj"},
971 {"--machine-", "-m", "*j"},
972 {"--no-line-commands", "-P", 0},
973 {"--no-precompiled-includes", "-noprecomp", 0},
974 {"--no-standard-includes", "-nostdinc", 0},
975 {"--no-standard-libraries", "-nostdlib", 0},
976 {"--no-warnings", "-w", 0},
977 {"--optimize", "-O", "oj"},
978 {"--output", "-o", "a"},
979 {"--output-class-directory", "-foutput-class-dir=", "ja"},
980 {"--param", "--param", "a"},
981 {"--pedantic", "-pedantic", 0},
982 {"--pedantic-errors", "-pedantic-errors", 0},
983 {"--pipe", "-pipe", 0},
984 {"--prefix", "-B", "a"},
985 {"--preprocess", "-E", 0},
986 {"--print-search-dirs", "-print-search-dirs", 0},
987 {"--print-file-name", "-print-file-name=", "aj"},
988 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
989 {"--print-missing-file-dependencies", "-MG", 0},
990 {"--print-multi-lib", "-print-multi-lib", 0},
991 {"--print-multi-directory", "-print-multi-directory", 0},
992 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
993 {"--print-prog-name", "-print-prog-name=", "aj"},
994 {"--profile", "-p", 0},
995 {"--profile-blocks", "-a", 0},
996 {"--quiet", "-q", 0},
997 {"--resource", "-fcompile-resource=", "aj"},
998 {"--save-temps", "-save-temps", 0},
999 {"--shared", "-shared", 0},
1000 {"--silent", "-q", 0},
1001 {"--specs", "-specs=", "aj"},
1002 {"--static", "-static", 0},
1003 {"--std", "-std=", "aj"},
1004 {"--symbolic", "-symbolic", 0},
1005 {"--target", "-b", "a"},
1006 {"--time", "-time", 0},
1007 {"--trace-includes", "-H", 0},
1008 {"--traditional", "-traditional", 0},
1009 {"--traditional-cpp", "-traditional-cpp", 0},
1010 {"--trigraphs", "-trigraphs", 0},
1011 {"--undefine-macro", "-U", "aj"},
1012 {"--use-version", "-V", "a"},
1013 {"--user-dependencies", "-MM", 0},
1014 {"--verbose", "-v", 0},
1015 {"--warn-", "-W", "*j"},
1016 {"--write-dependencies", "-MD", 0},
1017 {"--write-user-dependencies", "-MMD", 0},
1022 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1023 static const struct {
1024 const char *const option_found
;
1025 const char *const replacements
;
1026 } target_option_translations
[] =
1028 TARGET_OPTION_TRANSLATE_TABLE
,
1033 /* Translate the options described by *ARGCP and *ARGVP.
1034 Make a new vector and store it back in *ARGVP,
1035 and store its length in *ARGVC. */
1038 translate_options (argcp
, argvp
)
1040 const char *const **argvp
;
1044 const char *const *argv
= *argvp
;
1045 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1047 (const char **) xmalloc (newvsize
);
1051 newv
[newindex
++] = argv
[i
++];
1055 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1059 target_option_translations
[tott_idx
].option_found
;
1062 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1069 for (sp
= target_option_translations
[tott_idx
].replacements
;
1076 newvsize
+= spaces
* sizeof (const char *);
1077 newv
= (const char **) xrealloc (newv
, newvsize
);
1079 sp
= target_option_translations
[tott_idx
].replacements
;
1088 newv
[newindex
++] = np
;
1089 while (*np
!= ' ' && *np
)
1100 if (target_option_translations
[tott_idx
].option_found
)
1104 /* Translate -- options. */
1105 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1108 /* Find a mapping that applies to this option. */
1109 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1111 size_t optlen
= strlen (option_map
[j
].name
);
1112 size_t arglen
= strlen (argv
[i
]);
1113 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1114 const char *arginfo
= option_map
[j
].arg_info
;
1119 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1121 const char *arg
= 0;
1123 if (arglen
< optlen
)
1126 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1127 if (strlen (option_map
[k
].name
) >= arglen
1128 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1130 error ("ambiguous abbreviation %s", argv
[i
]);
1134 if (k
!= ARRAY_SIZE (option_map
))
1138 if (arglen
> optlen
)
1140 /* If the option has an argument, accept that. */
1141 if (argv
[i
][optlen
] == '=')
1142 arg
= argv
[i
] + optlen
+ 1;
1144 /* If this mapping requires extra text at end of name,
1145 accept that as "argument". */
1146 else if (strchr (arginfo
, '*') != 0)
1147 arg
= argv
[i
] + optlen
;
1149 /* Otherwise, extra text at end means mismatch.
1150 Try other mappings. */
1155 else if (strchr (arginfo
, '*') != 0)
1157 error ("incomplete `%s' option", option_map
[j
].name
);
1161 /* Handle arguments. */
1162 if (strchr (arginfo
, 'a') != 0)
1168 error ("missing argument to `%s' option",
1169 option_map
[j
].name
);
1176 else if (strchr (arginfo
, '*') != 0)
1178 else if (strchr (arginfo
, 'o') == 0)
1181 error ("extraneous argument to `%s' option",
1182 option_map
[j
].name
);
1186 /* Store the translation as one argv elt or as two. */
1187 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1188 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1192 newv
[newindex
++] = option_map
[j
].equivalent
;
1193 newv
[newindex
++] = arg
;
1196 newv
[newindex
++] = option_map
[j
].equivalent
;
1204 /* Handle old-fashioned options--just copy them through,
1205 with their arguments. */
1206 else if (argv
[i
][0] == '-')
1208 const char *p
= argv
[i
] + 1;
1212 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1213 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1214 else if (WORD_SWITCH_TAKES_ARG (p
))
1215 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1216 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1219 else if (! strcmp (p
, "Xlinker"))
1222 /* Watch out for an option at the end of the command line that
1223 is missing arguments, and avoid skipping past the end of the
1225 if (nskip
+ i
> argc
)
1230 newv
[newindex
++] = argv
[i
++];
1235 /* Ordinary operands, or +e options. */
1236 newv
[newindex
++] = argv
[i
++];
1251 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1252 be considered whitespace. */
1253 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1255 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1269 /* Structures to keep track of prefixes to try when looking for files. */
1273 const char *prefix
; /* String to prepend to the path. */
1274 struct prefix_list
*next
; /* Next in linked list. */
1275 int require_machine_suffix
; /* Don't use without machine_suffix. */
1276 /* 2 means try both machine_suffix and just_machine_suffix. */
1277 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1278 int priority
; /* Sort key - priority within list. */
1279 int os_multilib
; /* 1 if OS multilib scheme should be used,
1280 0 for GCC multilib scheme. */
1285 struct prefix_list
*plist
; /* List of prefixes to try */
1286 int max_len
; /* Max length of a prefix in PLIST */
1287 const char *name
; /* Name of this list (used in config stuff) */
1290 /* List of prefixes to try when looking for executables. */
1292 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1294 /* List of prefixes to try when looking for startup (crt0) files. */
1296 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1298 /* List of prefixes to try when looking for include files. */
1300 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1302 /* Suffix to attach to directories searched for commands.
1303 This looks like `MACHINE/VERSION/'. */
1305 static const char *machine_suffix
= 0;
1307 /* Suffix to attach to directories searched for commands.
1308 This is just `MACHINE/'. */
1310 static const char *just_machine_suffix
= 0;
1312 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1314 static const char *gcc_exec_prefix
;
1316 /* Default prefixes to attach to command names. */
1318 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1319 #undef MD_EXEC_PREFIX
1320 #undef MD_STARTFILE_PREFIX
1321 #undef MD_STARTFILE_PREFIX_1
1324 /* If no prefixes defined, use the null string, which will disable them. */
1325 #ifndef MD_EXEC_PREFIX
1326 #define MD_EXEC_PREFIX ""
1328 #ifndef MD_STARTFILE_PREFIX
1329 #define MD_STARTFILE_PREFIX ""
1331 #ifndef MD_STARTFILE_PREFIX_1
1332 #define MD_STARTFILE_PREFIX_1 ""
1335 /* Supply defaults for the standard prefixes. */
1337 #ifndef STANDARD_EXEC_PREFIX
1338 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1340 #ifndef STANDARD_STARTFILE_PREFIX
1341 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1343 #ifndef TOOLDIR_BASE_PREFIX
1344 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1346 #ifndef STANDARD_BINDIR_PREFIX
1347 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1350 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1351 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1352 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1354 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1355 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1356 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1357 static const char *const standard_startfile_prefix_1
= "/lib/";
1358 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1360 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1361 static const char *tooldir_prefix
;
1363 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1365 /* Subdirectory to use for locating libraries. Set by
1366 set_multilib_dir based on the compilation options. */
1368 static const char *multilib_dir
;
1370 /* Subdirectory to use for locating libraries in OS conventions. Set by
1371 set_multilib_dir based on the compilation options. */
1373 static const char *multilib_os_dir
;
1375 /* Structure to keep track of the specs that have been defined so far.
1376 These are accessed using %(specname) or %[specname] in a compiler
1381 /* The following 2 fields must be first */
1382 /* to allow EXTRA_SPECS to be initialized */
1383 const char *name
; /* name of the spec. */
1384 const char *ptr
; /* available ptr if no static pointer */
1386 /* The following fields are not initialized */
1387 /* by EXTRA_SPECS */
1388 const char **ptr_spec
; /* pointer to the spec itself. */
1389 struct spec_list
*next
; /* Next spec in linked list. */
1390 int name_len
; /* length of the name */
1391 int alloc_p
; /* whether string was allocated */
1394 #define INIT_STATIC_SPEC(NAME,PTR) \
1395 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1397 /* List of statically defined specs. */
1398 static struct spec_list static_specs
[] =
1400 INIT_STATIC_SPEC ("asm", &asm_spec
),
1401 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1402 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1403 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1404 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1405 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1406 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1407 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1408 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1409 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1410 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1411 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1412 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1413 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1414 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1415 INIT_STATIC_SPEC ("link", &link_spec
),
1416 INIT_STATIC_SPEC ("lib", &lib_spec
),
1417 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1418 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1419 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1420 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1421 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1422 INIT_STATIC_SPEC ("version", &compiler_version
),
1423 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1424 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1425 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1426 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1427 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1428 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1429 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1430 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1431 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1432 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1433 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1434 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1437 #ifdef EXTRA_SPECS /* additional specs needed */
1438 /* Structure to keep track of just the first two args of a spec_list.
1439 That is all that the EXTRA_SPECS macro gives us. */
1442 const char *const name
;
1443 const char *const ptr
;
1446 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1447 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1450 /* List of dynamically allocates specs that have been defined so far. */
1452 static struct spec_list
*specs
= (struct spec_list
*) 0;
1454 /* List of static spec functions. */
1456 static const struct spec_function static_spec_functions
[] =
1458 { "if-exists", if_exists_spec_function
},
1462 static int processing_spec_function
;
1464 /* Add appropriate libgcc specs to OBSTACK, taking into account
1465 various permutations of -shared-libgcc, -shared, and such. */
1467 #ifdef ENABLE_SHARED_LIBGCC
1469 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1470 struct obstack
*obstack
;
1471 const char *shared_name
;
1472 const char *static_name
;
1473 const char *eh_name
;
1477 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1478 "}%{!static:%{!static-libgcc:",
1479 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1480 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1481 static_name
, "}}%{shared:",
1483 "%{shared-libgcc:", shared_name
,
1484 "}%{!shared-libgcc:", static_name
, "}",
1490 obstack_grow (obstack
, buf
, strlen (buf
));
1493 #endif /* ENABLE_SHARED_LIBGCC */
1495 /* Initialize the specs lookup routines. */
1500 struct spec_list
*next
= (struct spec_list
*) 0;
1501 struct spec_list
*sl
= (struct spec_list
*) 0;
1505 return; /* Already initialized. */
1508 notice ("Using built-in specs.\n");
1511 extra_specs
= (struct spec_list
*)
1512 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1514 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1516 sl
= &extra_specs
[i
];
1517 sl
->name
= extra_specs_1
[i
].name
;
1518 sl
->ptr
= extra_specs_1
[i
].ptr
;
1520 sl
->name_len
= strlen (sl
->name
);
1521 sl
->ptr_spec
= &sl
->ptr
;
1526 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1527 on ?: in file-scope variable initializations. */
1528 asm_debug
= ASM_DEBUG_SPEC
;
1530 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1532 sl
= &static_specs
[i
];
1537 #ifdef ENABLE_SHARED_LIBGCC
1538 /* ??? If neither -shared-libgcc nor --static-libgcc was
1539 seen, then we should be making an educated guess. Some proposed
1540 heuristics for ELF include:
1542 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1543 program will be doing dynamic loading, which will likely
1544 need the shared libgcc.
1546 (2) If "-ldl", then it's also a fair bet that we're doing
1549 (3) For each ET_DYN we're linking against (either through -lfoo
1550 or /some/path/foo.so), check to see whether it or one of
1551 its dependencies depends on a shared libgcc.
1555 If the runtime is fixed to look for program headers instead
1556 of calling __register_frame_info at all, for each object,
1557 use the shared libgcc if any EH symbol referenced.
1559 If crtstuff is fixed to not invoke __register_frame_info
1560 automatically, for each object, use the shared libgcc if
1561 any non-empty unwind section found.
1563 Doing any of this probably requires invoking an external program to
1564 do the actual object file scanning. */
1566 const char *p
= libgcc_spec
;
1569 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1570 when given the proper command line arguments. */
1573 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1575 init_gcc_specs (&obstack
,
1576 #ifdef NO_SHARED_LIBGCC_MULTILIB
1587 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1589 /* Ug. We don't know shared library extensions. Hope that
1590 systems that use this form don't do shared libraries. */
1591 init_gcc_specs (&obstack
,
1592 #ifdef NO_SHARED_LIBGCC_MULTILIB
1605 obstack_1grow (&obstack
, *p
);
1606 in_sep
= (*p
== ' ');
1611 obstack_1grow (&obstack
, '\0');
1612 libgcc_spec
= obstack_finish (&obstack
);
1615 #ifdef USE_AS_TRADITIONAL_FORMAT
1616 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1618 static const char tf
[] = "--traditional-format ";
1619 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1620 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1621 asm_spec
= obstack_finish (&obstack
);
1625 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1626 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1627 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1628 link_spec
= obstack_finish (&obstack
);
1634 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1635 removed; If the spec starts with a + then SPEC is added to the end of the
1639 set_spec (name
, spec
)
1643 struct spec_list
*sl
;
1644 const char *old_spec
;
1645 int name_len
= strlen (name
);
1648 /* If this is the first call, initialize the statically allocated specs. */
1651 struct spec_list
*next
= (struct spec_list
*) 0;
1652 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1654 sl
= &static_specs
[i
];
1661 /* See if the spec already exists. */
1662 for (sl
= specs
; sl
; sl
= sl
->next
)
1663 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1668 /* Not found - make it. */
1669 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1670 sl
->name
= xstrdup (name
);
1671 sl
->name_len
= name_len
;
1672 sl
->ptr_spec
= &sl
->ptr
;
1674 *(sl
->ptr_spec
) = "";
1679 old_spec
= *(sl
->ptr_spec
);
1680 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1681 ? concat (old_spec
, spec
+ 1, NULL
)
1686 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1689 /* Free the old spec. */
1690 if (old_spec
&& sl
->alloc_p
)
1691 free ((PTR
) old_spec
);
1696 /* Accumulate a command (program name and args), and run it. */
1698 /* Vector of pointers to arguments in the current line of specifications. */
1700 static const char **argbuf
;
1702 /* Number of elements allocated in argbuf. */
1704 static int argbuf_length
;
1706 /* Number of elements in argbuf currently in use (containing args). */
1708 static int argbuf_index
;
1710 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1711 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1714 static struct temp_name
{
1715 const char *suffix
; /* suffix associated with the code. */
1716 int length
; /* strlen (suffix). */
1717 int unique
; /* Indicates whether %g or %u/%U was used. */
1718 const char *filename
; /* associated filename. */
1719 int filename_length
; /* strlen (filename). */
1720 struct temp_name
*next
;
1723 /* Number of commands executed so far. */
1725 static int execution_count
;
1727 /* Number of commands that exited with a signal. */
1729 static int signal_count
;
1731 /* Name with which this program was invoked. */
1733 static const char *programname
;
1735 /* Allocate the argument vector. */
1741 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
1744 /* Clear out the vector of arguments (after a command is executed). */
1752 /* Add one argument to the vector at the end.
1753 This is done when a space is seen or at the end of the line.
1754 If DELETE_ALWAYS is nonzero, the arg is a filename
1755 and the file should be deleted eventually.
1756 If DELETE_FAILURE is nonzero, the arg is a filename
1757 and the file should be deleted if this compilation fails. */
1760 store_arg (arg
, delete_always
, delete_failure
)
1762 int delete_always
, delete_failure
;
1764 if (argbuf_index
+ 1 == argbuf_length
)
1766 = (const char **) xrealloc (argbuf
,
1767 (argbuf_length
*= 2) * sizeof (const char *));
1769 argbuf
[argbuf_index
++] = arg
;
1770 argbuf
[argbuf_index
] = 0;
1772 if (delete_always
|| delete_failure
)
1773 record_temp_file (arg
, delete_always
, delete_failure
);
1776 /* Load specs from a file name named FILENAME, replacing occurrences of
1777 various different types of line-endings, \r\n, \n\r and just \r, with
1781 load_specs (filename
)
1782 const char *filename
;
1786 struct stat statbuf
;
1793 notice ("Reading specs from %s\n", filename
);
1795 /* Open and stat the file. */
1796 desc
= open (filename
, O_RDONLY
, 0);
1798 pfatal_with_name (filename
);
1799 if (stat (filename
, &statbuf
) < 0)
1800 pfatal_with_name (filename
);
1802 /* Read contents of file into BUFFER. */
1803 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1804 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1806 pfatal_with_name (filename
);
1807 buffer
[readlen
] = 0;
1810 specs
= xmalloc (readlen
+ 1);
1812 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1818 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1820 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1834 /* Read compilation specs from a file named FILENAME,
1835 replacing the default ones.
1837 A suffix which starts with `*' is a definition for
1838 one of the machine-specific sub-specs. The "suffix" should be
1839 *asm, *cc1, *cpp, *link, *startfile, etc.
1840 The corresponding spec is stored in asm_spec, etc.,
1841 rather than in the `compilers' vector.
1843 Anything invalid in the file is a fatal error. */
1846 read_specs (filename
, main_p
)
1847 const char *filename
;
1853 buffer
= load_specs (filename
);
1855 /* Scan BUFFER for specs, putting them in the vector. */
1861 char *in
, *out
, *p1
, *p2
, *p3
;
1863 /* Advance P in BUFFER to the next nonblank nocomment line. */
1864 p
= skip_whitespace (p
);
1868 /* Is this a special command that starts with '%'? */
1869 /* Don't allow this for the main specs file, since it would
1870 encourage people to overwrite it. */
1871 if (*p
== '%' && !main_p
)
1874 while (*p
&& *p
!= '\n')
1880 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1881 && (p1
[sizeof "%include" - 1] == ' '
1882 || p1
[sizeof "%include" - 1] == '\t'))
1886 p1
+= sizeof ("%include");
1887 while (*p1
== ' ' || *p1
== '\t')
1890 if (*p1
++ != '<' || p
[-2] != '>')
1891 fatal ("specs %%include syntax malformed after %ld characters",
1892 (long) (p1
- buffer
+ 1));
1895 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1896 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1899 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1900 && (p1
[sizeof "%include_noerr" - 1] == ' '
1901 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1905 p1
+= sizeof "%include_noerr";
1906 while (*p1
== ' ' || *p1
== '\t')
1909 if (*p1
++ != '<' || p
[-2] != '>')
1910 fatal ("specs %%include syntax malformed after %ld characters",
1911 (long) (p1
- buffer
+ 1));
1914 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1916 read_specs (new_filename
, FALSE
);
1917 else if (verbose_flag
)
1918 notice ("could not find specs file %s\n", p1
);
1921 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1922 && (p1
[sizeof "%rename" - 1] == ' '
1923 || p1
[sizeof "%rename" - 1] == '\t'))
1926 struct spec_list
*sl
;
1927 struct spec_list
*newsl
;
1929 /* Get original name. */
1930 p1
+= sizeof "%rename";
1931 while (*p1
== ' ' || *p1
== '\t')
1934 if (! ISALPHA ((unsigned char) *p1
))
1935 fatal ("specs %%rename syntax malformed after %ld characters",
1936 (long) (p1
- buffer
));
1939 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1942 if (*p2
!= ' ' && *p2
!= '\t')
1943 fatal ("specs %%rename syntax malformed after %ld characters",
1944 (long) (p2
- buffer
));
1948 while (*p2
== ' ' || *p2
== '\t')
1951 if (! ISALPHA ((unsigned char) *p2
))
1952 fatal ("specs %%rename syntax malformed after %ld characters",
1953 (long) (p2
- buffer
));
1955 /* Get new spec name. */
1957 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1961 fatal ("specs %%rename syntax malformed after %ld characters",
1962 (long) (p3
- buffer
));
1965 for (sl
= specs
; sl
; sl
= sl
->next
)
1966 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1970 fatal ("specs %s spec was not found to be renamed", p1
);
1972 if (strcmp (p1
, p2
) == 0)
1975 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1976 if (strcmp (newsl
->name
, p2
) == 0)
1977 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
1982 notice ("rename spec %s to %s\n", p1
, p2
);
1984 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1988 set_spec (p2
, *(sl
->ptr_spec
));
1990 free ((PTR
) *(sl
->ptr_spec
));
1992 *(sl
->ptr_spec
) = "";
1997 fatal ("specs unknown %% command after %ld characters",
1998 (long) (p1
- buffer
));
2001 /* Find the colon that should end the suffix. */
2003 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2006 /* The colon shouldn't be missing. */
2008 fatal ("specs file malformed after %ld characters",
2009 (long) (p1
- buffer
));
2011 /* Skip back over trailing whitespace. */
2013 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2016 /* Copy the suffix to a string. */
2017 suffix
= save_string (p
, p2
- p
);
2018 /* Find the next line. */
2019 p
= skip_whitespace (p1
+ 1);
2021 fatal ("specs file malformed after %ld characters",
2022 (long) (p
- buffer
));
2025 /* Find next blank line or end of string. */
2026 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2029 /* Specs end at the blank line and do not include the newline. */
2030 spec
= save_string (p
, p1
- p
);
2033 /* Delete backslash-newline sequences from the spec. */
2038 if (in
[0] == '\\' && in
[1] == '\n')
2040 else if (in
[0] == '#')
2041 while (*in
&& *in
!= '\n')
2049 if (suffix
[0] == '*')
2051 if (! strcmp (suffix
, "*link_command"))
2052 link_command_spec
= spec
;
2054 set_spec (suffix
+ 1, spec
);
2058 /* Add this pair to the vector. */
2060 = ((struct compiler
*)
2061 xrealloc (compilers
,
2062 (n_compilers
+ 2) * sizeof (struct compiler
)));
2064 compilers
[n_compilers
].suffix
= suffix
;
2065 compilers
[n_compilers
].spec
= spec
;
2067 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2071 link_command_spec
= spec
;
2074 if (link_command_spec
== 0)
2075 fatal ("spec file has no spec for linking");
2078 /* Record the names of temporary files we tell compilers to write,
2079 and delete them at the end of the run. */
2081 /* This is the common prefix we use to make temp file names.
2082 It is chosen once for each run of this program.
2083 It is substituted into a spec by %g or %j.
2084 Thus, all temp file names contain this prefix.
2085 In practice, all temp file names start with this prefix.
2087 This prefix comes from the envvar TMPDIR if it is defined;
2088 otherwise, from the P_tmpdir macro if that is defined;
2089 otherwise, in /usr/tmp or /tmp;
2090 or finally the current directory if all else fails. */
2092 static const char *temp_filename
;
2094 /* Length of the prefix. */
2096 static int temp_filename_length
;
2098 /* Define the list of temporary files to delete. */
2103 struct temp_file
*next
;
2106 /* Queue of files to delete on success or failure of compilation. */
2107 static struct temp_file
*always_delete_queue
;
2108 /* Queue of files to delete on failure of compilation. */
2109 static struct temp_file
*failure_delete_queue
;
2111 /* Record FILENAME as a file to be deleted automatically.
2112 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2113 otherwise delete it in any case.
2114 FAIL_DELETE nonzero means delete it if a compilation step fails;
2115 otherwise delete it in any case. */
2118 record_temp_file (filename
, always_delete
, fail_delete
)
2119 const char *filename
;
2123 char *const name
= xstrdup (filename
);
2127 struct temp_file
*temp
;
2128 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2129 if (! strcmp (name
, temp
->name
))
2132 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2133 temp
->next
= always_delete_queue
;
2135 always_delete_queue
= temp
;
2142 struct temp_file
*temp
;
2143 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2144 if (! strcmp (name
, temp
->name
))
2147 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2148 temp
->next
= failure_delete_queue
;
2150 failure_delete_queue
= temp
;
2156 /* Delete all the temporary files whose names we previously recorded. */
2159 delete_if_ordinary (name
)
2166 printf ("Delete %s? (y or n) ", name
);
2170 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2173 if (i
== 'y' || i
== 'Y')
2175 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2176 if (unlink (name
) < 0)
2178 perror_with_name (name
);
2182 delete_temp_files ()
2184 struct temp_file
*temp
;
2186 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2187 delete_if_ordinary (temp
->name
);
2188 always_delete_queue
= 0;
2191 /* Delete all the files to be deleted on error. */
2194 delete_failure_queue ()
2196 struct temp_file
*temp
;
2198 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2199 delete_if_ordinary (temp
->name
);
2203 clear_failure_queue ()
2205 failure_delete_queue
= 0;
2208 /* Build a list of search directories from PATHS.
2209 PREFIX is a string to prepend to the list.
2210 If CHECK_DIR_P is nonzero we ensure the directory exists.
2211 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2212 It is also used by the --print-search-dirs flag. */
2215 build_search_list (paths
, prefix
, check_dir_p
)
2216 struct path_prefix
*paths
;
2220 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2222 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2223 int first_time
= TRUE
;
2224 struct prefix_list
*pprefix
;
2226 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2227 obstack_1grow (&collect_obstack
, '=');
2229 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2231 int len
= strlen (pprefix
->prefix
);
2235 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2238 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2241 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2242 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2245 if (just_machine_suffix
2246 && pprefix
->require_machine_suffix
== 2
2248 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2251 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2254 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2255 obstack_grow (&collect_obstack
, just_machine_suffix
,
2259 if (! pprefix
->require_machine_suffix
)
2262 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2265 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2269 obstack_1grow (&collect_obstack
, '\0');
2270 return obstack_finish (&collect_obstack
);
2273 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2277 putenv_from_prefixes (paths
, env_var
)
2278 struct path_prefix
*paths
;
2279 const char *env_var
;
2281 putenv (build_search_list (paths
, env_var
, 1));
2286 /* FIXME: the location independence code for VMS is hairier than this,
2287 and hasn't been written. */
2289 /* Split a filename into component directories. */
2292 split_directories (name
, ptr_num_dirs
)
2301 /* Count the number of directories. Special case MSDOS disk names as part
2302 of the initial directory. */
2304 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2305 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2310 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2312 while ((ch
= *p
++) != '\0')
2314 if (IS_DIR_SEPARATOR (ch
))
2317 while (IS_DIR_SEPARATOR (*p
))
2322 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2324 /* Now copy the directory parts. */
2327 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2328 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2330 dirs
[num_dirs
++] = save_string (p
, 3);
2333 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2336 while ((ch
= *p
++) != '\0')
2338 if (IS_DIR_SEPARATOR (ch
))
2340 while (IS_DIR_SEPARATOR (*p
))
2343 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2349 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2351 dirs
[num_dirs
] = NULL
;
2353 *ptr_num_dirs
= num_dirs
;
2358 /* Release storage held by split directories. */
2361 free_split_directories (dirs
)
2366 while (dirs
[i
] != NULL
)
2369 free ((char *) dirs
);
2372 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2373 to PREFIX starting with the directory portion of PROGNAME and a relative
2374 pathname of the difference between BIN_PREFIX and PREFIX.
2376 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2377 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2378 function will return /red/green/blue/../omega.
2380 If no relative prefix can be found, return NULL. */
2383 make_relative_prefix (progname
, bin_prefix
, prefix
)
2384 const char *progname
;
2385 const char *bin_prefix
;
2388 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2389 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2392 prog_dirs
= split_directories (progname
, &prog_num
);
2393 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2395 /* If there is no full pathname, try to find the program by checking in each
2396 of the directories specified in the PATH environment variable. */
2401 GET_ENVIRONMENT (temp
, "PATH");
2404 char *startp
, *endp
, *nstore
;
2405 size_t prefixlen
= strlen (temp
) + 1;
2409 nstore
= (char *) alloca (prefixlen
+ strlen (progname
) + 1);
2411 startp
= endp
= temp
;
2414 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2419 nstore
[1] = DIR_SEPARATOR
;
2424 strncpy (nstore
, startp
, endp
- startp
);
2425 if (! IS_DIR_SEPARATOR (endp
[-1]))
2427 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2428 nstore
[endp
- startp
+ 1] = 0;
2431 nstore
[endp
- startp
] = 0;
2433 strcat (nstore
, progname
);
2434 if (! access (nstore
, X_OK
)
2435 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2436 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2440 free_split_directories (prog_dirs
);
2442 prog_dirs
= split_directories (progname
, &prog_num
);
2448 endp
= startp
= endp
+ 1;
2456 /* Remove the program name from comparison of directory names. */
2459 /* Determine if the compiler is installed in the standard location, and if
2460 so, we don't need to specify relative directories. Also, if argv[0]
2461 doesn't contain any directory specifiers, there is not much we can do. */
2463 if (prog_num
== bin_num
)
2465 for (i
= 0; i
< bin_num
; i
++)
2467 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2471 if (prog_num
<= 0 || i
== bin_num
)
2474 free_split_directories (prog_dirs
);
2475 free_split_directories (bin_dirs
);
2476 prog_dirs
= bin_dirs
= (char **) 0;
2481 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2483 /* Find how many directories are in common between bin_prefix & prefix. */
2484 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2485 for (common
= 0; common
< n
; common
++)
2487 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2491 /* If there are no common directories, there can be no relative prefix. */
2494 free_split_directories (prog_dirs
);
2495 free_split_directories (bin_dirs
);
2496 free_split_directories (prefix_dirs
);
2500 /* Build up the pathnames in argv[0]. */
2501 for (i
= 0; i
< prog_num
; i
++)
2502 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2504 /* Now build up the ..'s. */
2505 for (i
= common
; i
< n
; i
++)
2507 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2508 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2511 /* Put in directories to move over to prefix. */
2512 for (i
= common
; i
< prefix_num
; i
++)
2513 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2515 free_split_directories (prog_dirs
);
2516 free_split_directories (bin_dirs
);
2517 free_split_directories (prefix_dirs
);
2519 obstack_1grow (&obstack
, '\0');
2520 return obstack_finish (&obstack
);
2524 /* Check whether NAME can be accessed in MODE. This is like access,
2525 except that it never considers directories to be executable. */
2528 access_check (name
, mode
)
2536 if (stat (name
, &st
) < 0
2537 || S_ISDIR (st
.st_mode
))
2541 return access (name
, mode
);
2544 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2545 access to check permissions.
2546 Return 0 if not found, otherwise return its name, allocated with malloc. */
2549 find_a_file (pprefix
, name
, mode
, multilib
)
2550 struct path_prefix
*pprefix
;
2555 const char *const file_suffix
=
2556 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2557 struct prefix_list
*pl
;
2558 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2559 const char *multilib_name
, *multilib_os_name
;
2561 #ifdef DEFAULT_ASSEMBLER
2562 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2563 return xstrdup (DEFAULT_ASSEMBLER
);
2566 #ifdef DEFAULT_LINKER
2567 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2568 return xstrdup (DEFAULT_LINKER
);
2572 len
+= strlen (machine_suffix
);
2574 multilib_name
= name
;
2575 multilib_os_name
= name
;
2576 if (multilib
&& multilib_os_dir
)
2578 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2579 int len2
= strlen (multilib_os_dir
) + 1;
2581 len
+= len1
> len2
? len1
: len2
;
2583 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2585 if (strcmp (multilib_os_dir
, ".") != 0)
2586 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2590 temp
= xmalloc (len
);
2592 /* Determine the filename to execute (special case for absolute paths). */
2594 if (IS_ABSOLUTE_PATHNAME (name
))
2596 if (access (name
, mode
) == 0)
2598 strcpy (temp
, name
);
2603 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2605 const char *this_name
2606 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2610 /* Some systems have a suffix for executable files.
2611 So try appending that first. */
2612 if (file_suffix
[0] != 0)
2614 strcpy (temp
, pl
->prefix
);
2615 strcat (temp
, machine_suffix
);
2616 strcat (temp
, multilib_name
);
2617 strcat (temp
, file_suffix
);
2618 if (access_check (temp
, mode
) == 0)
2620 if (pl
->used_flag_ptr
!= 0)
2621 *pl
->used_flag_ptr
= 1;
2626 /* Now try just the multilib_name. */
2627 strcpy (temp
, pl
->prefix
);
2628 strcat (temp
, machine_suffix
);
2629 strcat (temp
, multilib_name
);
2630 if (access_check (temp
, mode
) == 0)
2632 if (pl
->used_flag_ptr
!= 0)
2633 *pl
->used_flag_ptr
= 1;
2638 /* Certain prefixes are tried with just the machine type,
2639 not the version. This is used for finding as, ld, etc. */
2640 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2642 /* Some systems have a suffix for executable files.
2643 So try appending that first. */
2644 if (file_suffix
[0] != 0)
2646 strcpy (temp
, pl
->prefix
);
2647 strcat (temp
, just_machine_suffix
);
2648 strcat (temp
, multilib_name
);
2649 strcat (temp
, file_suffix
);
2650 if (access_check (temp
, mode
) == 0)
2652 if (pl
->used_flag_ptr
!= 0)
2653 *pl
->used_flag_ptr
= 1;
2658 strcpy (temp
, pl
->prefix
);
2659 strcat (temp
, just_machine_suffix
);
2660 strcat (temp
, multilib_name
);
2661 if (access_check (temp
, mode
) == 0)
2663 if (pl
->used_flag_ptr
!= 0)
2664 *pl
->used_flag_ptr
= 1;
2669 /* Certain prefixes can't be used without the machine suffix
2670 when the machine or version is explicitly specified. */
2671 if (! pl
->require_machine_suffix
)
2673 /* Some systems have a suffix for executable files.
2674 So try appending that first. */
2675 if (file_suffix
[0] != 0)
2677 strcpy (temp
, pl
->prefix
);
2678 strcat (temp
, this_name
);
2679 strcat (temp
, file_suffix
);
2680 if (access_check (temp
, mode
) == 0)
2682 if (pl
->used_flag_ptr
!= 0)
2683 *pl
->used_flag_ptr
= 1;
2688 strcpy (temp
, pl
->prefix
);
2689 strcat (temp
, this_name
);
2690 if (access_check (temp
, mode
) == 0)
2692 if (pl
->used_flag_ptr
!= 0)
2693 *pl
->used_flag_ptr
= 1;
2703 /* Ranking of prefixes in the sort list. -B prefixes are put before
2706 enum path_prefix_priority
2708 PREFIX_PRIORITY_B_OPT
,
2709 PREFIX_PRIORITY_LAST
2712 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2713 order according to PRIORITY. Within each PRIORITY, new entries are
2716 If WARN is nonzero, we will warn if no file is found
2717 through this prefix. WARN should point to an int
2718 which will be set to 1 if this entry is used.
2720 COMPONENT is the value to be passed to update_path.
2722 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2723 the complete value of machine_suffix.
2724 2 means try both machine_suffix and just_machine_suffix. */
2727 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
,
2729 struct path_prefix
*pprefix
;
2731 const char *component
;
2732 /* enum prefix_priority */ int priority
;
2733 int require_machine_suffix
;
2737 struct prefix_list
*pl
, **prev
;
2740 for (prev
= &pprefix
->plist
;
2741 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2742 prev
= &(*prev
)->next
)
2745 /* Keep track of the longest prefix */
2747 prefix
= update_path (prefix
, component
);
2748 len
= strlen (prefix
);
2749 if (len
> pprefix
->max_len
)
2750 pprefix
->max_len
= len
;
2752 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2753 pl
->prefix
= prefix
;
2754 pl
->require_machine_suffix
= require_machine_suffix
;
2755 pl
->used_flag_ptr
= warn
;
2756 pl
->priority
= priority
;
2757 pl
->os_multilib
= os_multilib
;
2761 /* Insert after PREV */
2766 /* Execute the command specified by the arguments on the current line of spec.
2767 When using pipes, this includes several piped-together commands
2768 with `|' between them.
2770 Return 0 if successful, -1 if failed. */
2776 int n_commands
; /* # of command. */
2780 const char *prog
; /* program name. */
2781 const char **argv
; /* vector of args. */
2782 int pid
; /* pid of process for this command. */
2785 struct command
*commands
; /* each command buffer with above info. */
2787 if (processing_spec_function
)
2790 /* Count # of piped commands. */
2791 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2792 if (strcmp (argbuf
[i
], "|") == 0)
2795 /* Get storage for each command. */
2796 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2798 /* Split argbuf into its separate piped processes,
2799 and record info about each one.
2800 Also search for the programs that are to be run. */
2802 commands
[0].prog
= argbuf
[0]; /* first command. */
2803 commands
[0].argv
= &argbuf
[0];
2804 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2807 commands
[0].argv
[0] = string
;
2809 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2810 if (strcmp (argbuf
[i
], "|") == 0)
2811 { /* each command. */
2812 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2813 fatal ("-pipe not supported");
2815 argbuf
[i
] = 0; /* termination of command args. */
2816 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2817 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2818 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2821 commands
[n_commands
].argv
[0] = string
;
2825 argbuf
[argbuf_index
] = 0;
2827 /* If -v, print what we are about to do, and maybe query. */
2831 /* For help listings, put a blank line between sub-processes. */
2832 if (print_help_list
)
2833 fputc ('\n', stderr
);
2835 /* Print each piped command as a separate line. */
2836 for (i
= 0; i
< n_commands
; i
++)
2838 const char *const *j
;
2840 if (verbose_only_flag
)
2842 for (j
= commands
[i
].argv
; *j
; j
++)
2845 fprintf (stderr
, " \"");
2846 for (p
= *j
; *p
; ++p
)
2848 if (*p
== '"' || *p
== '\\' || *p
== '$')
2849 fputc ('\\', stderr
);
2852 fputc ('"', stderr
);
2856 for (j
= commands
[i
].argv
; *j
; j
++)
2857 fprintf (stderr
, " %s", *j
);
2859 /* Print a pipe symbol after all but the last command. */
2860 if (i
+ 1 != n_commands
)
2861 fprintf (stderr
, " |");
2862 fprintf (stderr
, "\n");
2865 if (verbose_only_flag
!= 0)
2868 notice ("\nGo ahead? (y or n) ");
2872 while (getchar () != '\n')
2875 if (i
!= 'y' && i
!= 'Y')
2880 #ifdef ENABLE_VALGRIND_CHECKING
2881 /* Run the each command through valgrind. To simplifiy prepending the
2882 path to valgrind and the option "-q" (for quiet operation unless
2883 something triggers), we allocate a separate argv array. */
2885 for (i
= 0; i
< n_commands
; i
++)
2891 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2894 argv
= alloca ((argc
+ 3) * sizeof (char *));
2896 argv
[0] = VALGRIND_PATH
;
2898 for (j
= 2; j
< argc
+ 2; j
++)
2899 argv
[j
] = commands
[i
].argv
[j
- 2];
2902 commands
[i
].argv
= argv
;
2903 commands
[i
].prog
= argv
[0];
2907 /* Run each piped subprocess. */
2909 for (i
= 0; i
< n_commands
; i
++)
2911 char *errmsg_fmt
, *errmsg_arg
;
2912 const char *string
= commands
[i
].argv
[0];
2914 /* For some bizarre reason, the second argument of execvp() is
2915 char *const *, not const char *const *. */
2916 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2917 programname
, temp_filename
,
2918 &errmsg_fmt
, &errmsg_arg
,
2919 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2920 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2921 | (string
== commands
[i
].prog
2922 ? PEXECUTE_SEARCH
: 0)
2923 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2925 if (commands
[i
].pid
== -1)
2926 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2928 if (string
!= commands
[i
].prog
)
2929 free ((PTR
) string
);
2934 /* Wait for all the subprocesses to finish.
2935 We don't care what order they finish in;
2936 we know that N_COMMANDS waits will get them all.
2937 Ignore subprocesses that we don't know about,
2938 since they can be spawned by the process that exec'ed us. */
2942 #ifdef HAVE_GETRUSAGE
2944 double ut
= 0.0, st
= 0.0;
2947 for (i
= 0; i
< n_commands
;)
2953 pid
= pwait (commands
[i
].pid
, &status
, 0);
2957 #ifdef HAVE_GETRUSAGE
2960 /* getrusage returns the total resource usage of all children
2961 up to now. Copy the previous values into prus, get the
2962 current statistics, then take the difference. */
2965 getrusage (RUSAGE_CHILDREN
, &rus
);
2966 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2967 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2968 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2970 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2971 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2972 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2976 for (j
= 0; j
< n_commands
; j
++)
2977 if (commands
[j
].pid
== pid
)
2980 if (WIFSIGNALED (status
))
2983 /* SIGPIPE is a special case. It happens in -pipe mode
2984 when the compiler dies before the preprocessor is
2985 done, or the assembler dies before the compiler is
2986 done. There's generally been an error already, and
2987 this is just fallout. So don't generate another error
2988 unless we would otherwise have succeeded. */
2989 if (WTERMSIG (status
) == SIGPIPE
2990 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2995 Internal error: %s (program %s)\n\
2996 Please submit a full bug report.\n\
2997 See %s for instructions.",
2998 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
3003 else if (WIFEXITED (status
)
3004 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3006 if (WEXITSTATUS (status
) > greatest_status
)
3007 greatest_status
= WEXITSTATUS (status
);
3010 #ifdef HAVE_GETRUSAGE
3011 if (report_times
&& ut
+ st
!= 0)
3012 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
3021 /* Find all the switches given to us
3022 and make a vector describing them.
3023 The elements of the vector are strings, one per switch given.
3024 If a switch uses following arguments, then the `part1' field
3025 is the switch itself and the `args' field
3026 is a null-terminated vector containing the following arguments.
3027 The `live_cond' field is:
3029 1 if the switch is true in a conditional spec,
3030 -1 if false (overridden by a later switch)
3031 -2 if this switch should be ignored (used in %{<S})
3032 The `validated' field is nonzero if any spec has looked at this switch;
3033 if it remains zero at the end of the run, it must be meaningless. */
3036 #define SWITCH_FALSE -1
3037 #define SWITCH_IGNORE -2
3038 #define SWITCH_LIVE 1
3045 unsigned char validated
;
3046 unsigned char ordering
;
3049 static struct switchstr
*switches
;
3051 static int n_switches
;
3056 const char *language
;
3059 /* Also a vector of input files specified. */
3061 static struct infile
*infiles
;
3065 /* This counts the number of libraries added by lang_specific_driver, so that
3066 we can tell if there were any user supplied any files or libraries. */
3068 static int added_libraries
;
3070 /* And a vector of corresponding output files is made up later. */
3072 const char **outfiles
;
3074 /* Used to track if none of the -B paths are used. */
3077 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
3078 static int *warn_std_ptr
= 0;
3080 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3082 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3083 is true if we should look for an executable suffix. DO_OBJ
3084 is true if we should look for an object suffix. */
3087 convert_filename (name
, do_exe
, do_obj
)
3089 int do_exe ATTRIBUTE_UNUSED
;
3090 int do_obj ATTRIBUTE_UNUSED
;
3092 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3100 len
= strlen (name
);
3102 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3103 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3104 if (do_obj
&& len
> 2
3105 && name
[len
- 2] == '.'
3106 && name
[len
- 1] == 'o')
3108 obstack_grow (&obstack
, name
, len
- 2);
3109 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3110 name
= obstack_finish (&obstack
);
3114 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3115 /* If there is no filetype, make it the executable suffix (which includes
3116 the "."). But don't get confused if we have just "-o". */
3117 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3120 for (i
= len
- 1; i
>= 0; i
--)
3121 if (IS_DIR_SEPARATOR (name
[i
]))
3124 for (i
++; i
< len
; i
++)
3128 obstack_grow (&obstack
, name
, len
);
3129 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3130 strlen (TARGET_EXECUTABLE_SUFFIX
));
3131 name
= obstack_finish (&obstack
);
3138 /* Display the command line switches accepted by gcc. */
3142 printf (_("Usage: %s [options] file...\n"), programname
);
3143 fputs (_("Options:\n"), stdout
);
3145 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3146 fputs (_(" --help Display this information\n"), stdout
);
3147 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3149 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3150 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3151 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3152 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3153 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3154 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3155 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3156 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3157 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3159 -print-multi-lib Display the mapping between command line options and\n\
3160 multiple library search directories\n"), stdout
);
3161 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3162 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3163 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3164 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3165 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3166 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3167 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3168 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3169 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3170 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3171 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3172 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3173 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3174 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3175 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3176 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3177 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3178 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3179 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3181 -x <language> Specify the language of the following input files\n\
3182 Permissable languages include: c c++ assembler none\n\
3183 'none' means revert to the default behavior of\n\
3184 guessing the language based on the file's extension\n\
3188 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3189 passed on to the various sub-processes invoked by %s. In order to pass\n\
3190 other options on to these processes the -W<letter> options must be used.\n\
3193 /* The rest of the options are displayed by invocations of the various
3198 add_preprocessor_option (option
, len
)
3202 n_preprocessor_options
++;
3204 if (! preprocessor_options
)
3205 preprocessor_options
3206 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3208 preprocessor_options
3209 = (char **) xrealloc (preprocessor_options
,
3210 n_preprocessor_options
* sizeof (char *));
3212 preprocessor_options
[n_preprocessor_options
- 1] =
3213 save_string (option
, len
);
3217 add_assembler_option (option
, len
)
3221 n_assembler_options
++;
3223 if (! assembler_options
)
3225 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3228 = (char **) xrealloc (assembler_options
,
3229 n_assembler_options
* sizeof (char *));
3231 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3235 add_linker_option (option
, len
)
3241 if (! linker_options
)
3243 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3246 = (char **) xrealloc (linker_options
,
3247 n_linker_options
* sizeof (char *));
3249 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3252 /* Create the vector `switches' and its contents.
3253 Store its length in `n_switches'. */
3256 process_command (argc
, argv
)
3258 const char *const *argv
;
3263 const char *spec_lang
= 0;
3264 int last_language_n_infiles
;
3267 int lang_n_infiles
= 0;
3268 #ifdef MODIFY_TARGET_NAME
3269 int is_modify_target_name
;
3273 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3277 added_libraries
= 0;
3279 /* Figure compiler version from version string. */
3281 compiler_version
= temp1
= xstrdup (version_string
);
3283 for (; *temp1
; ++temp1
)
3292 /* If there is a -V or -b option (or both), process it now, before
3293 trying to interpret the rest of the command line. */
3294 if (argc
> 1 && argv
[1][0] == '-'
3295 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3297 const char *new_version
= DEFAULT_TARGET_VERSION
;
3298 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3299 const char *progname
= argv
[0];
3304 while (argc
> 1 && argv
[1][0] == '-'
3305 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3307 char opt
= argv
[1][1];
3309 if (argv
[1][2] != '\0')
3322 fatal ("`-%c' option must have argument", opt
);
3329 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3330 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3332 new_argv0
= xmemdup (progname
, baselen
,
3333 baselen
+ concat_length (new_version
, new_machine
,
3334 "-gcc-", NULL
) + 1);
3335 strcpy (new_argv0
+ baselen
, new_machine
);
3336 strcat (new_argv0
, "-gcc-");
3337 strcat (new_argv0
, new_version
);
3339 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3340 (argc
+ 1) * sizeof (argv
[0]));
3341 new_argv
[0] = new_argv0
;
3343 execvp (new_argv0
, new_argv
);
3344 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3347 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3348 see if we can create it from the pathname specified in argv[0]. */
3351 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3352 if (!gcc_exec_prefix
)
3354 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3355 standard_exec_prefix
);
3356 if (gcc_exec_prefix
)
3357 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3361 if (gcc_exec_prefix
)
3363 int len
= strlen (gcc_exec_prefix
);
3365 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3366 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3368 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3369 if (IS_DIR_SEPARATOR (*temp
)
3370 && strncmp (temp
+ 1, "lib", 3) == 0
3371 && IS_DIR_SEPARATOR (temp
[4])
3372 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3373 len
-= sizeof ("/lib/gcc-lib/") - 1;
3376 set_std_prefix (gcc_exec_prefix
, len
);
3377 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3378 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3379 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3380 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3383 /* COMPILER_PATH and LIBRARY_PATH have values
3384 that are lists of directory names with colons. */
3386 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3389 const char *startp
, *endp
;
3390 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3392 startp
= endp
= temp
;
3395 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3397 strncpy (nstore
, startp
, endp
- startp
);
3399 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3400 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3402 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3403 nstore
[endp
- startp
+ 1] = 0;
3406 nstore
[endp
- startp
] = 0;
3407 add_prefix (&exec_prefixes
, nstore
, 0,
3408 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3409 add_prefix (&include_prefixes
,
3410 concat (nstore
, "include", NULL
),
3411 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3414 endp
= startp
= endp
+ 1;
3421 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3422 if (temp
&& *cross_compile
== '0')
3424 const char *startp
, *endp
;
3425 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3427 startp
= endp
= temp
;
3430 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3432 strncpy (nstore
, startp
, endp
- startp
);
3434 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3435 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3437 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3438 nstore
[endp
- startp
+ 1] = 0;
3441 nstore
[endp
- startp
] = 0;
3442 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3443 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3446 endp
= startp
= endp
+ 1;
3453 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3454 GET_ENVIRONMENT (temp
, "LPATH");
3455 if (temp
&& *cross_compile
== '0')
3457 const char *startp
, *endp
;
3458 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3460 startp
= endp
= temp
;
3463 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3465 strncpy (nstore
, startp
, endp
- startp
);
3467 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3468 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3470 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3471 nstore
[endp
- startp
+ 1] = 0;
3474 nstore
[endp
- startp
] = 0;
3475 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3476 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3479 endp
= startp
= endp
+ 1;
3486 /* Convert new-style -- options to old-style. */
3487 translate_options (&argc
, &argv
);
3489 /* Do language-specific adjustment/addition of flags. */
3490 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3492 /* Scan argv twice. Here, the first time, just count how many switches
3493 there will be in their vector, and how many input files in theirs.
3494 Here we also parse the switches that cc itself uses (e.g. -v). */
3496 for (i
= 1; i
< argc
; i
++)
3498 if (! strcmp (argv
[i
], "-dumpspecs"))
3500 struct spec_list
*sl
;
3502 for (sl
= specs
; sl
; sl
= sl
->next
)
3503 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3504 if (link_command_spec
)
3505 printf ("*link_command:\n%s\n\n", link_command_spec
);
3508 else if (! strcmp (argv
[i
], "-dumpversion"))
3510 printf ("%s\n", spec_version
);
3513 else if (! strcmp (argv
[i
], "-dumpmachine"))
3515 printf ("%s\n", spec_machine
);
3518 else if (strcmp (argv
[i
], "-fversion") == 0)
3520 /* translate_options () has turned --version into -fversion. */
3521 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3522 fputs (_("Copyright (C) 2002 Free Software Foundation, Inc.\n"),
3524 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3525 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3529 else if (strcmp (argv
[i
], "-fhelp") == 0)
3531 /* translate_options () has turned --help into -fhelp. */
3532 print_help_list
= 1;
3534 /* We will be passing a dummy file on to the sub-processes. */
3538 /* CPP driver cannot obtain switch from cc1_options. */
3540 add_preprocessor_option ("--help", 6);
3541 add_assembler_option ("--help", 6);
3542 add_linker_option ("--help", 6);
3544 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3546 /* translate_options() has turned --target-help into -ftarget-help. */
3547 target_help_flag
= 1;
3549 /* We will be passing a dummy file on to the sub-processes. */
3553 /* CPP driver cannot obtain switch from cc1_options. */
3555 add_preprocessor_option ("--target-help", 13);
3556 add_assembler_option ("--target-help", 13);
3557 add_linker_option ("--target-help", 13);
3559 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3561 pass_exit_codes
= 1;
3564 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3565 print_search_dirs
= 1;
3566 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3567 print_file_name
= "libgcc.a";
3568 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3569 print_file_name
= argv
[i
] + 17;
3570 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3571 print_prog_name
= argv
[i
] + 17;
3572 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3573 print_multi_lib
= 1;
3574 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3575 print_multi_directory
= 1;
3576 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3577 print_multi_os_directory
= 1;
3578 else if (! strncmp (argv
[i
], "-Wa,", 4))
3581 /* Pass the rest of this option to the assembler. */
3583 /* Split the argument at commas. */
3585 for (j
= 4; argv
[i
][j
]; j
++)
3586 if (argv
[i
][j
] == ',')
3588 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3592 /* Record the part after the last comma. */
3593 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3595 else if (! strncmp (argv
[i
], "-Wp,", 4))
3598 /* Pass the rest of this option to the preprocessor. */
3600 /* Split the argument at commas. */
3602 for (j
= 4; argv
[i
][j
]; j
++)
3603 if (argv
[i
][j
] == ',')
3605 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3609 /* Record the part after the last comma. */
3610 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3612 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3613 /* The +e options to the C++ front-end. */
3615 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3618 /* Split the argument at commas. */
3619 for (j
= 3; argv
[i
][j
]; j
++)
3620 n_infiles
+= (argv
[i
][j
] == ',');
3622 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3625 fatal ("argument to `-Xlinker' is missing");
3630 else if (strcmp (argv
[i
], "-l") == 0)
3633 fatal ("argument to `-l' is missing");
3638 else if (strncmp (argv
[i
], "-l", 2) == 0)
3640 else if (strcmp (argv
[i
], "-save-temps") == 0)
3642 save_temps_flag
= 1;
3645 else if (strcmp (argv
[i
], "-specs") == 0)
3647 struct user_specs
*user
= (struct user_specs
*)
3648 xmalloc (sizeof (struct user_specs
));
3650 fatal ("argument to `-specs' is missing");
3652 user
->next
= (struct user_specs
*) 0;
3653 user
->filename
= argv
[i
];
3654 if (user_specs_tail
)
3655 user_specs_tail
->next
= user
;
3657 user_specs_head
= user
;
3658 user_specs_tail
= user
;
3660 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3662 struct user_specs
*user
= (struct user_specs
*)
3663 xmalloc (sizeof (struct user_specs
));
3664 if (strlen (argv
[i
]) == 7)
3665 fatal ("argument to `-specs=' is missing");
3667 user
->next
= (struct user_specs
*) 0;
3668 user
->filename
= argv
[i
] + 7;
3669 if (user_specs_tail
)
3670 user_specs_tail
->next
= user
;
3672 user_specs_head
= user
;
3673 user_specs_tail
= user
;
3675 else if (strcmp (argv
[i
], "-time") == 0)
3677 else if (strcmp (argv
[i
], "-###") == 0)
3679 /* This is similar to -v except that there is no execution
3680 of the commands and the echoed arguments are quoted. It
3681 is intended for use in shell scripts to capture the
3682 driver-generated command line. */
3683 verbose_only_flag
++;
3686 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3688 const char *p
= &argv
[i
][1];
3695 fatal ("`-%c' must come at the start of the command line", c
);
3703 if (p
[1] == 0 && i
+ 1 == argc
)
3704 fatal ("argument to `-B' is missing");
3710 len
= strlen (value
);
3712 /* Catch the case where the user has forgotten to append a
3713 directory separator to the path. Note, they may be using
3714 -B to add an executable name prefix, eg "i386-elf-", in
3715 order to distinguish between multiple installations of
3716 GCC in the same directory. Hence we must check to see
3717 if appending a directory separator actually makes a
3718 valid directory name. */
3719 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3720 && is_directory (value
, "", 0))
3722 char *tmp
= xmalloc (len
+ 2);
3723 strcpy (tmp
, value
);
3724 tmp
[len
] = DIR_SEPARATOR
;
3729 /* As a kludge, if the arg is "[foo/]stageN/", just
3730 add "[foo/]include" to the include prefix. */
3733 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3734 && strncmp (value
+ len
- 7, "stage", 5) == 0
3735 && ISDIGIT (value
[len
- 2])
3736 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3739 add_prefix (&include_prefixes
, "include", NULL
,
3740 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3743 char * string
= xmalloc (len
+ 1);
3745 strncpy (string
, value
, len
- 7);
3746 strcpy (string
+ len
- 7, "include");
3747 add_prefix (&include_prefixes
, string
, NULL
,
3748 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3752 add_prefix (&exec_prefixes
, value
, NULL
,
3753 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3754 add_prefix (&startfile_prefixes
, value
, NULL
,
3755 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3756 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3757 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3762 case 'v': /* Print our subcommands and print versions. */
3764 /* If they do anything other than exactly `-v', don't set
3765 verbose_flag; rather, continue on to give the error. */
3783 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3788 /* Forward scan, just in case -S or -c is specified
3795 if (argv
[j
][0] == '-')
3797 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3803 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3804 j
+= skip
- (argv
[j
][2] != 0);
3805 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3812 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3814 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3816 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3823 #ifdef MODIFY_TARGET_NAME
3824 is_modify_target_name
= 0;
3826 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3827 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3830 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3831 + strlen (spec_machine
));
3834 int made_addition
= 0;
3836 is_modify_target_name
= 1;
3837 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3839 if (modify_target
[j
].add_del
== DELETE
3840 && (! strncmp (q
, modify_target
[j
].str
,
3841 strlen (modify_target
[j
].str
))))
3842 p
+= strlen (modify_target
[j
].str
);
3843 else if (modify_target
[j
].add_del
== ADD
3844 && ! made_addition
&& *p
== '-')
3846 for (r
= modify_target
[j
].str
; *r
!= 0; )
3854 spec_machine
= new_name
;
3857 if (is_modify_target_name
)
3863 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3864 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3865 else if (WORD_SWITCH_TAKES_ARG (p
))
3866 i
+= WORD_SWITCH_TAKES_ARG (p
);
3876 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3877 fatal ("cannot specify -o with -c or -S and multiple compilations");
3879 /* Set up the search paths before we go looking for config files. */
3881 /* These come before the md prefixes so that we will find gcc's subcommands
3882 (such as cpp) rather than those of the host system. */
3883 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3884 as well as trying the machine and the version. */
3886 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3887 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3888 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3889 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3890 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3891 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3894 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3895 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3896 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3897 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3899 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3900 dir_separator_str
, NULL
);
3902 /* If tooldir is relative, base it on exec_prefixes. A relative
3903 tooldir lets us move the installed tree as a unit.
3905 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3906 directories, so that we can search both the user specified directory
3907 and the standard place. */
3909 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3911 if (gcc_exec_prefix
)
3913 char *gcc_exec_tooldir_prefix
3914 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3915 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3917 add_prefix (&exec_prefixes
,
3918 concat (gcc_exec_tooldir_prefix
, "bin",
3919 dir_separator_str
, NULL
),
3920 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3921 add_prefix (&startfile_prefixes
,
3922 concat (gcc_exec_tooldir_prefix
, "lib",
3923 dir_separator_str
, NULL
),
3924 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3927 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3928 dir_separator_str
, spec_version
,
3929 dir_separator_str
, tooldir_prefix
, NULL
);
3932 add_prefix (&exec_prefixes
,
3933 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3934 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3935 add_prefix (&startfile_prefixes
,
3936 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3937 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3939 /* More prefixes are enabled in main, after we read the specs file
3940 and determine whether this is cross-compilation or not. */
3942 /* Then create the space for the vectors and scan again. */
3944 switches
= ((struct switchstr
*)
3945 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3946 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3949 last_language_n_infiles
= -1;
3951 /* This, time, copy the text of each switch and store a pointer
3952 to the copy in the vector of switches.
3953 Store all the infiles in their vector. */
3955 for (i
= 1; i
< argc
; i
++)
3957 /* Just skip the switches that were handled by the preceding loop. */
3958 #ifdef MODIFY_TARGET_NAME
3959 is_modify_target_name
= 0;
3961 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3962 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3963 is_modify_target_name
= 1;
3965 if (is_modify_target_name
)
3969 if (! strncmp (argv
[i
], "-Wa,", 4))
3971 else if (! strncmp (argv
[i
], "-Wp,", 4))
3973 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3975 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3977 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3979 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3981 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3983 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3985 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3987 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3989 else if (! strcmp (argv
[i
], "-ftarget-help"))
3991 else if (! strcmp (argv
[i
], "-fhelp"))
3993 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3995 /* Compensate for the +e options to the C++ front-end;
3996 they're there simply for cfront call-compatibility. We do
3997 some magic in default_compilers to pass them down properly.
3998 Note we deliberately start at the `+' here, to avoid passing
3999 -e0 or -e1 down into the linker. */
4000 switches
[n_switches
].part1
= &argv
[i
][0];
4001 switches
[n_switches
].args
= 0;
4002 switches
[n_switches
].live_cond
= SWITCH_OK
;
4003 switches
[n_switches
].validated
= 0;
4006 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4009 /* Split the argument at commas. */
4011 for (j
= 4; argv
[i
][j
]; j
++)
4012 if (argv
[i
][j
] == ',')
4014 infiles
[n_infiles
].language
= "*";
4015 infiles
[n_infiles
++].name
4016 = save_string (argv
[i
] + prev
, j
- prev
);
4019 /* Record the part after the last comma. */
4020 infiles
[n_infiles
].language
= "*";
4021 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4023 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4025 infiles
[n_infiles
].language
= "*";
4026 infiles
[n_infiles
++].name
= argv
[++i
];
4028 else if (strcmp (argv
[i
], "-l") == 0)
4029 { /* POSIX allows separation of -l and the lib arg;
4030 canonicalize by concatenating -l with its arg */
4031 infiles
[n_infiles
].language
= "*";
4032 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4034 else if (strncmp (argv
[i
], "-l", 2) == 0)
4036 infiles
[n_infiles
].language
= "*";
4037 infiles
[n_infiles
++].name
= argv
[i
];
4039 else if (strcmp (argv
[i
], "-specs") == 0)
4041 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4043 else if (strcmp (argv
[i
], "-time") == 0)
4045 else if ((save_temps_flag
|| report_times
)
4046 && strcmp (argv
[i
], "-pipe") == 0)
4048 /* -save-temps overrides -pipe, so that temp files are produced */
4049 if (save_temps_flag
)
4050 error ("warning: -pipe ignored because -save-temps specified");
4051 /* -time overrides -pipe because we can't get correct stats when
4052 multiple children are running at once. */
4053 else if (report_times
)
4054 error ("warning: -pipe ignored because -time specified");
4056 else if (strcmp (argv
[i
], "-###") == 0)
4058 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4060 const char *p
= &argv
[i
][1];
4065 if (p
[1] == 0 && i
+ 1 == argc
)
4066 fatal ("argument to `-x' is missing");
4068 spec_lang
= argv
[++i
];
4071 if (! strcmp (spec_lang
, "none"))
4072 /* Suppress the warning if -xnone comes after the last input
4073 file, because alternate command interfaces like g++ might
4074 find it useful to place -xnone after each input file. */
4077 last_language_n_infiles
= n_infiles
;
4080 switches
[n_switches
].part1
= p
;
4081 /* Deal with option arguments in separate argv elements. */
4082 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4083 || WORD_SWITCH_TAKES_ARG (p
))
4086 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4090 /* Count only the option arguments in separate argv elements. */
4091 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4093 if (i
+ n_args
>= argc
)
4094 fatal ("argument to `-%s' is missing", p
);
4095 switches
[n_switches
].args
4096 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
4098 switches
[n_switches
].args
[j
++] = argv
[++i
];
4099 /* Null-terminate the vector. */
4100 switches
[n_switches
].args
[j
] = 0;
4102 else if (strchr (switches_need_spaces
, c
))
4104 /* On some systems, ld cannot handle some options without
4105 a space. So split the option from its argument. */
4106 char *part1
= (char *) xmalloc (2);
4110 switches
[n_switches
].part1
= part1
;
4111 switches
[n_switches
].args
4112 = (const char **) xmalloc (2 * sizeof (const char *));
4113 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4114 switches
[n_switches
].args
[1] = 0;
4117 switches
[n_switches
].args
= 0;
4119 switches
[n_switches
].live_cond
= SWITCH_OK
;
4120 switches
[n_switches
].validated
= 0;
4121 switches
[n_switches
].ordering
= 0;
4122 /* These are always valid, since gcc.c itself understands it. */
4123 if (!strcmp (p
, "save-temps")
4124 || !strcmp (p
, "static-libgcc")
4125 || !strcmp (p
, "shared-libgcc"))
4126 switches
[n_switches
].validated
= 1;
4129 char ch
= switches
[n_switches
].part1
[0];
4131 switches
[n_switches
].validated
= 1;
4137 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4138 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4141 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4143 perror_with_name (argv
[i
]);
4148 infiles
[n_infiles
].language
= spec_lang
;
4149 infiles
[n_infiles
++].name
= argv
[i
];
4154 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4155 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4157 /* Ensure we only invoke each subprocess once. */
4158 if (target_help_flag
|| print_help_list
)
4162 /* Create a dummy input file, so that we can pass --target-help on to
4163 the various sub-processes. */
4164 infiles
[0].language
= "c";
4165 infiles
[0].name
= "help-dummy";
4167 if (target_help_flag
)
4169 switches
[n_switches
].part1
= "--target-help";
4170 switches
[n_switches
].args
= 0;
4171 switches
[n_switches
].live_cond
= SWITCH_OK
;
4172 switches
[n_switches
].validated
= 0;
4177 if (print_help_list
)
4179 switches
[n_switches
].part1
= "--help";
4180 switches
[n_switches
].args
= 0;
4181 switches
[n_switches
].live_cond
= SWITCH_OK
;
4182 switches
[n_switches
].validated
= 0;
4188 switches
[n_switches
].part1
= 0;
4189 infiles
[n_infiles
].name
= 0;
4192 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
4193 and place that in the environment. */
4196 set_collect_gcc_options ()
4201 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4203 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4204 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4207 for (i
= 0; (int) i
< n_switches
; i
++)
4209 const char *const *args
;
4212 obstack_grow (&collect_obstack
, " ", 1);
4216 /* Ignore elided switches. */
4217 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4220 obstack_grow (&collect_obstack
, "'-", 2);
4221 q
= switches
[i
].part1
;
4222 while ((p
= strchr (q
, '\'')))
4224 obstack_grow (&collect_obstack
, q
, p
- q
);
4225 obstack_grow (&collect_obstack
, "'\\''", 4);
4228 obstack_grow (&collect_obstack
, q
, strlen (q
));
4229 obstack_grow (&collect_obstack
, "'", 1);
4231 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4233 obstack_grow (&collect_obstack
, " '", 2);
4235 while ((p
= strchr (q
, '\'')))
4237 obstack_grow (&collect_obstack
, q
, p
- q
);
4238 obstack_grow (&collect_obstack
, "'\\''", 4);
4241 obstack_grow (&collect_obstack
, q
, strlen (q
));
4242 obstack_grow (&collect_obstack
, "'", 1);
4245 obstack_grow (&collect_obstack
, "\0", 1);
4246 putenv (obstack_finish (&collect_obstack
));
4249 /* Process a spec string, accumulating and running commands. */
4251 /* These variables describe the input file name.
4252 input_file_number is the index on outfiles of this file,
4253 so that the output file name can be stored for later use by %o.
4254 input_basename is the start of the part of the input file
4255 sans all directory names, and basename_length is the number
4256 of characters starting there excluding the suffix .c or whatever. */
4258 const char *input_filename
;
4259 static int input_file_number
;
4260 size_t input_filename_length
;
4261 static int basename_length
;
4262 static int suffixed_basename_length
;
4263 static const char *input_basename
;
4264 static const char *input_suffix
;
4265 static struct stat input_stat
;
4266 static int input_stat_set
;
4268 /* The compiler used to process the current input file. */
4269 static struct compiler
*input_file_compiler
;
4271 /* These are variables used within do_spec and do_spec_1. */
4273 /* Nonzero if an arg has been started and not yet terminated
4274 (with space, tab or newline). */
4275 static int arg_going
;
4277 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4278 is a temporary file name. */
4279 static int delete_this_arg
;
4281 /* Nonzero means %w has been seen; the next arg to be terminated
4282 is the output file name of this compilation. */
4283 static int this_is_output_file
;
4285 /* Nonzero means %s has been seen; the next arg to be terminated
4286 is the name of a library file and we should try the standard
4287 search dirs for it. */
4288 static int this_is_library_file
;
4290 /* Nonzero means that the input of this command is coming from a pipe. */
4291 static int input_from_pipe
;
4293 /* Nonnull means substitute this for any suffix when outputting a switches
4295 static const char *suffix_subst
;
4297 /* Process the spec SPEC and run the commands specified therein.
4298 Returns 0 if the spec is successfully processed; -1 if failed. */
4306 value
= do_spec_2 (spec
);
4308 /* Force out any unfinished command.
4309 If -pipe, this forces out the last command if it ended in `|'. */
4312 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4315 set_collect_gcc_options ();
4317 if (argbuf_index
> 0)
4330 delete_this_arg
= 0;
4331 this_is_output_file
= 0;
4332 this_is_library_file
= 0;
4333 input_from_pipe
= 0;
4334 suffix_subst
= NULL
;
4336 return do_spec_1 (spec
, 0, NULL
);
4340 /* Process the given spec string and add any new options to the end
4341 of the switches/n_switches array. */
4348 do_spec_1 (" ", 0, NULL
);
4350 if (argbuf_index
> 0)
4355 n_switches
+= argbuf_index
;
4356 switches
= xrealloc (switches
,
4357 sizeof (struct switchstr
) * (n_switches
+ 1));
4359 switches
[n_switches
] = switches
[first
];
4360 for (i
= 0; i
< argbuf_index
; i
++)
4362 struct switchstr
*sw
;
4364 /* Each switch should start with '-'. */
4365 if (argbuf
[i
][0] != '-')
4368 sw
= &switches
[i
+ first
];
4369 sw
->part1
= &argbuf
[i
][1];
4371 sw
->live_cond
= SWITCH_OK
;
4378 /* Process the sub-spec SPEC as a portion of a larger spec.
4379 This is like processing a whole spec except that we do
4380 not initialize at the beginning and we do not supply a
4381 newline by default at the end.
4382 INSWITCH nonzero means don't process %-sequences in SPEC;
4383 in this case, % is treated as an ordinary character.
4384 This is used while substituting switches.
4385 INSWITCH nonzero also causes SPC not to terminate an argument.
4387 Value is zero unless a line was finished
4388 and the command on that line reported an error. */
4391 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4394 const char *soft_matched_part
;
4396 const char *p
= spec
;
4403 /* If substituting a switch, treat all chars like letters.
4404 Otherwise, NL, SPC, TAB and % are special. */
4405 switch (inswitch
? 'a' : c
)
4408 /* End of line: finish any pending argument,
4409 then run the pending command if one has been started. */
4412 obstack_1grow (&obstack
, 0);
4413 string
= obstack_finish (&obstack
);
4414 if (this_is_library_file
)
4415 string
= find_file (string
);
4416 store_arg (string
, delete_this_arg
, this_is_output_file
);
4417 if (this_is_output_file
)
4418 outfiles
[input_file_number
] = string
;
4422 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4424 for (i
= 0; i
< n_switches
; i
++)
4425 if (!strcmp (switches
[i
].part1
, "pipe"))
4428 /* A `|' before the newline means use a pipe here,
4429 but only if -pipe was specified.
4430 Otherwise, execute now and don't pass the `|' as an arg. */
4433 input_from_pipe
= 1;
4434 switches
[i
].validated
= 1;
4441 set_collect_gcc_options ();
4443 if (argbuf_index
> 0)
4449 /* Reinitialize for a new command, and for a new argument. */
4452 delete_this_arg
= 0;
4453 this_is_output_file
= 0;
4454 this_is_library_file
= 0;
4455 input_from_pipe
= 0;
4459 /* End any pending argument. */
4462 obstack_1grow (&obstack
, 0);
4463 string
= obstack_finish (&obstack
);
4464 if (this_is_library_file
)
4465 string
= find_file (string
);
4466 store_arg (string
, delete_this_arg
, this_is_output_file
);
4467 if (this_is_output_file
)
4468 outfiles
[input_file_number
] = string
;
4472 obstack_1grow (&obstack
, c
);
4478 /* Space or tab ends an argument if one is pending. */
4481 obstack_1grow (&obstack
, 0);
4482 string
= obstack_finish (&obstack
);
4483 if (this_is_library_file
)
4484 string
= find_file (string
);
4485 store_arg (string
, delete_this_arg
, this_is_output_file
);
4486 if (this_is_output_file
)
4487 outfiles
[input_file_number
] = string
;
4489 /* Reinitialize for a new argument. */
4491 delete_this_arg
= 0;
4492 this_is_output_file
= 0;
4493 this_is_library_file
= 0;
4500 fatal ("invalid specification! Bug in cc");
4503 obstack_grow (&obstack
, input_basename
, basename_length
);
4508 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4513 delete_this_arg
= 2;
4516 /* Dump out the directories specified with LIBRARY_PATH,
4517 followed by the absolute directories
4518 that we search for startfiles. */
4521 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4522 size_t bufsize
= 100;
4523 char *buffer
= (char *) xmalloc (bufsize
);
4526 for (; pl
; pl
= pl
->next
)
4528 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4529 /* Used on systems which record the specified -L dirs
4530 and use them to search for dynamic linking. */
4531 /* Relative directories always come from -B,
4532 and it is better not to use them for searching
4533 at run time. In particular, stage1 loses. */
4534 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4537 /* Try subdirectory if there is one. */
4538 if (multilib_dir
!= NULL
4539 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4541 const char *multi_dir
;
4543 multi_dir
= pl
->os_multilib
? multilib_os_dir
4545 if (machine_suffix
&& multilib_dir
)
4547 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4549 bufsize
= (strlen (pl
->prefix
)
4550 + strlen (machine_suffix
)) * 2 + 1;
4551 buffer
= (char *) xrealloc (buffer
, bufsize
);
4552 strcpy (buffer
, pl
->prefix
);
4553 strcat (buffer
, machine_suffix
);
4554 if (is_directory (buffer
, multilib_dir
, 1))
4556 do_spec_1 ("-L", 0, NULL
);
4557 #ifdef SPACE_AFTER_L_OPTION
4558 do_spec_1 (" ", 0, NULL
);
4560 do_spec_1 (buffer
, 1, NULL
);
4561 do_spec_1 (multilib_dir
, 1, NULL
);
4562 /* Make this a separate argument. */
4563 do_spec_1 (" ", 0, NULL
);
4566 if (!pl
->require_machine_suffix
)
4568 if (is_directory (pl
->prefix
, multi_dir
, 1))
4570 do_spec_1 ("-L", 0, NULL
);
4571 #ifdef SPACE_AFTER_L_OPTION
4572 do_spec_1 (" ", 0, NULL
);
4574 do_spec_1 (pl
->prefix
, 1, NULL
);
4575 do_spec_1 (multi_dir
, 1, NULL
);
4576 /* Make this a separate argument. */
4577 do_spec_1 (" ", 0, NULL
);
4583 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4585 do_spec_1 ("-L", 0, NULL
);
4586 #ifdef SPACE_AFTER_L_OPTION
4587 do_spec_1 (" ", 0, NULL
);
4589 do_spec_1 (pl
->prefix
, 1, NULL
);
4590 /* Remove slash from machine_suffix. */
4591 if (strlen (machine_suffix
) >= bufsize
)
4592 bufsize
= strlen (machine_suffix
) * 2 + 1;
4593 buffer
= (char *) xrealloc (buffer
, bufsize
);
4594 strcpy (buffer
, machine_suffix
);
4595 idx
= strlen (buffer
);
4596 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4597 buffer
[idx
- 1] = 0;
4598 do_spec_1 (buffer
, 1, NULL
);
4599 /* Make this a separate argument. */
4600 do_spec_1 (" ", 0, NULL
);
4603 if (!pl
->require_machine_suffix
)
4605 if (is_directory (pl
->prefix
, "", 1))
4607 do_spec_1 ("-L", 0, NULL
);
4608 #ifdef SPACE_AFTER_L_OPTION
4609 do_spec_1 (" ", 0, NULL
);
4611 /* Remove slash from pl->prefix. */
4612 if (strlen (pl
->prefix
) >= bufsize
)
4613 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4614 buffer
= (char *) xrealloc (buffer
, bufsize
);
4615 strcpy (buffer
, pl
->prefix
);
4616 idx
= strlen (buffer
);
4617 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4618 buffer
[idx
- 1] = 0;
4619 do_spec_1 (buffer
, 1, NULL
);
4620 /* Make this a separate argument. */
4621 do_spec_1 (" ", 0, NULL
);
4630 /* %efoo means report an error with `foo' as error message
4631 and don't execute any more commands for this file. */
4635 while (*p
!= 0 && *p
!= '\n')
4637 buf
= (char *) alloca (p
- q
+ 1);
4638 strncpy (buf
, q
, p
- q
);
4645 /* %nfoo means report an notice with `foo' on stderr. */
4649 while (*p
!= 0 && *p
!= '\n')
4651 buf
= (char *) alloca (p
- q
+ 1);
4652 strncpy (buf
, q
, p
- q
);
4654 notice ("%s\n", buf
);
4664 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4665 and it is not a directory, and it is writable, use it.
4666 Otherwise, fall through and treat this like any other
4669 if ((!save_temps_flag
)
4670 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4671 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4673 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4674 strlen (HOST_BIT_BUCKET
));
4675 delete_this_arg
= 0;
4684 struct temp_name
*t
;
4686 const char *suffix
= p
;
4687 char *saved_suffix
= NULL
;
4689 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4691 suffix_length
= p
- suffix
;
4692 if (p
[0] == '%' && p
[1] == 'O')
4695 /* We don't support extra suffix characters after %O. */
4696 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4698 if (suffix_length
== 0)
4699 suffix
= TARGET_OBJECT_SUFFIX
;
4703 = (char *) xmalloc (suffix_length
4704 + strlen (TARGET_OBJECT_SUFFIX
));
4705 strncpy (saved_suffix
, suffix
, suffix_length
);
4706 strcpy (saved_suffix
+ suffix_length
,
4707 TARGET_OBJECT_SUFFIX
);
4709 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4712 /* If the input_filename has the same suffix specified
4713 for the %g, %u, or %U, and -save-temps is specified,
4714 we could end up using that file as an intermediate
4715 thus clobbering the user's source file (.e.g.,
4716 gcc -save-temps foo.s would clobber foo.s with the
4717 output of cpp0). So check for this condition and
4718 generate a temp file as the intermediate. */
4720 if (save_temps_flag
)
4722 temp_filename_length
= basename_length
+ suffix_length
;
4723 temp_filename
= alloca (temp_filename_length
+ 1);
4724 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4725 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4727 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4728 if (strcmp (temp_filename
, input_filename
) != 0)
4730 struct stat st_temp
;
4732 /* Note, set_input() resets input_stat_set to 0. */
4733 if (input_stat_set
== 0)
4735 input_stat_set
= stat (input_filename
, &input_stat
);
4736 if (input_stat_set
>= 0)
4740 /* If we have the stat for the input_filename
4741 and we can do the stat for the temp_filename
4742 then the they could still refer to the same
4743 file if st_dev/st_ino's are the same. */
4745 if (input_stat_set
!= 1
4746 || stat (temp_filename
, &st_temp
) < 0
4747 || input_stat
.st_dev
!= st_temp
.st_dev
4748 || input_stat
.st_ino
!= st_temp
.st_ino
)
4750 temp_filename
= save_string (temp_filename
,
4751 temp_filename_length
+ 1);
4752 obstack_grow (&obstack
, temp_filename
,
4753 temp_filename_length
);
4760 /* See if we already have an association of %g/%u/%U and
4762 for (t
= temp_names
; t
; t
= t
->next
)
4763 if (t
->length
== suffix_length
4764 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4765 && t
->unique
== (c
!= 'g'))
4768 /* Make a new association if needed. %u and %j
4770 if (t
== 0 || c
== 'u' || c
== 'j')
4774 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4775 t
->next
= temp_names
;
4778 t
->length
= suffix_length
;
4781 t
->suffix
= saved_suffix
;
4782 saved_suffix
= NULL
;
4785 t
->suffix
= save_string (suffix
, suffix_length
);
4786 t
->unique
= (c
!= 'g');
4787 temp_filename
= make_temp_file (t
->suffix
);
4788 temp_filename_length
= strlen (temp_filename
);
4789 t
->filename
= temp_filename
;
4790 t
->filename_length
= temp_filename_length
;
4794 free (saved_suffix
);
4796 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4797 delete_this_arg
= 1;
4803 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4809 struct prefix_list
*pl
= include_prefixes
.plist
;
4811 if (gcc_exec_prefix
)
4813 do_spec_1 ("-iprefix", 1, NULL
);
4814 /* Make this a separate argument. */
4815 do_spec_1 (" ", 0, NULL
);
4816 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4817 do_spec_1 (" ", 0, NULL
);
4820 for (; pl
; pl
= pl
->next
)
4822 do_spec_1 ("-isystem", 1, NULL
);
4823 /* Make this a separate argument. */
4824 do_spec_1 (" ", 0, NULL
);
4825 do_spec_1 (pl
->prefix
, 1, NULL
);
4826 do_spec_1 (" ", 0, NULL
);
4833 int max
= n_infiles
;
4834 max
+= lang_specific_extra_outfiles
;
4836 for (i
= 0; i
< max
; i
++)
4838 store_arg (outfiles
[i
], 0, 0);
4843 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4848 this_is_library_file
= 1;
4852 this_is_output_file
= 1;
4857 int cur_index
= argbuf_index
;
4858 /* Handle the {...} following the %W. */
4861 p
= handle_braces (p
+ 1);
4864 /* If any args were output, mark the last one for deletion
4866 if (argbuf_index
!= cur_index
)
4867 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4871 /* %x{OPTION} records OPTION for %X to output. */
4877 /* Skip past the option value and make a copy. */
4882 string
= save_string (p1
+ 1, p
- p1
- 2);
4884 /* See if we already recorded this option. */
4885 for (i
= 0; i
< n_linker_options
; i
++)
4886 if (! strcmp (string
, linker_options
[i
]))
4892 /* This option is new; add it. */
4893 add_linker_option (string
, strlen (string
));
4897 /* Dump out the options accumulated previously using %x. */
4899 for (i
= 0; i
< n_linker_options
; i
++)
4901 do_spec_1 (linker_options
[i
], 1, NULL
);
4902 /* Make each accumulated option a separate argument. */
4903 do_spec_1 (" ", 0, NULL
);
4907 /* Dump out the options accumulated previously using -Wa,. */
4909 for (i
= 0; i
< n_assembler_options
; i
++)
4911 do_spec_1 (assembler_options
[i
], 1, NULL
);
4912 /* Make each accumulated option a separate argument. */
4913 do_spec_1 (" ", 0, NULL
);
4917 /* Dump out the options accumulated previously using -Wp,. */
4919 for (i
= 0; i
< n_preprocessor_options
; i
++)
4921 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4922 /* Make each accumulated option a separate argument. */
4923 do_spec_1 (" ", 0, NULL
);
4927 /* Here are digits and numbers that just process
4928 a certain constant string as a spec. */
4931 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4937 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4943 value
= do_spec_1 (asm_spec
, 0, NULL
);
4949 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4956 const char *const spec
4957 = (input_file_compiler
->cpp_spec
4958 ? input_file_compiler
->cpp_spec
4960 value
= do_spec_1 (spec
, 0, NULL
);
4967 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4973 value
= do_spec_1 (link_spec
, 0, NULL
);
4979 value
= do_spec_1 (lib_spec
, 0, NULL
);
4985 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4991 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4997 len
= strlen (multilib_dir
);
4998 obstack_blank (&obstack
, len
+ 1);
4999 p
= obstack_next_free (&obstack
) - (len
+ 1);
5002 for (q
= multilib_dir
; *q
; ++q
, ++p
)
5003 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
5009 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
5013 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
5017 if (! strncmp (y
, "-D", 2))
5018 /* Copy the whole option. */
5019 while (*y
&& *y
!= ' ' && *y
!= '\t')
5021 else if (*y
== ' ' || *y
== '\t')
5022 /* Copy whitespace to the result. */
5024 /* Don't copy other options. */
5031 value
= do_spec_1 (buf
, 0, NULL
);
5039 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
5043 /* Copy all of CPP_PREDEFINES into BUF,
5044 but force them all into the reserved name space if they
5045 aren't already there. The reserved name space is all
5046 identifiers beginning with two underscores or with one
5047 underscore and a capital letter. We do the forcing by
5048 adding up to two underscores to the beginning and end
5049 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
5054 if (! strncmp (y
, "-D", 2))
5063 && ! ISUPPER ((unsigned char) *(y
+ 1))))
5065 /* Stick __ at front of macro name. */
5069 /* Arrange to stick __ at the end as well. */
5073 /* Copy the macro name. */
5074 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
5087 /* Copy the value given, if any. */
5088 while (*y
&& *y
!= ' ' && *y
!= '\t')
5091 else if (*y
== ' ' || *y
== '\t')
5092 /* Copy whitespace to the result. */
5094 /* Don't copy -A options */
5100 /* Copy all of CPP_PREDEFINES into BUF,
5101 but put __ after every -D. */
5105 if (! strncmp (y
, "-D", 2))
5111 && ! ISUPPER ((unsigned char) *(y
+ 1))))
5113 /* Stick -D__ at front of macro name. */
5120 /* Copy the macro name. */
5121 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
5124 /* Copy the value given, if any. */
5125 while (*y
&& *y
!= ' ' && *y
!= '\t')
5130 /* Do not copy this macro - we have just done it before */
5131 while (*y
&& *y
!= ' ' && *y
!= '\t')
5135 else if (*y
== ' ' || *y
== '\t')
5136 /* Copy whitespace to the result. */
5138 /* Don't copy -A options. */
5144 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
5148 if (! strncmp (y
, "-A", 2))
5149 /* Copy the whole option. */
5150 while (*y
&& *y
!= ' ' && *y
!= '\t')
5152 else if (*y
== ' ' || *y
== '\t')
5153 /* Copy whitespace to the result. */
5155 /* Don't copy other options. */
5162 value
= do_spec_1 (buf
, 0, NULL
);
5169 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5174 /* Here we define characters other than letters and digits. */
5177 p
= handle_braces (p
);
5183 p
= handle_spec_function (p
);
5189 obstack_1grow (&obstack
, '%');
5196 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5198 suffix_subst
= save_string (p
- 1, len
+ 1);
5204 if (soft_matched_part
)
5206 do_spec_1 (soft_matched_part
, 1, NULL
);
5207 do_spec_1 (" ", 0, NULL
);
5210 /* Catch the case where a spec string contains something like
5211 '%{foo:%*}'. ie there is no * in the pattern on the left
5212 hand side of the :. */
5213 error ("spec failure: '%%*' has not been initialized by pattern match");
5216 /* Process a string found as the value of a spec given by name.
5217 This feature allows individual machine descriptions
5218 to add and use their own specs.
5219 %[...] modifies -D options the way %P does;
5220 %(...) uses the spec unmodified. */
5222 error ("warning: use of obsolete %%[ operator in specs");
5225 const char *name
= p
;
5226 struct spec_list
*sl
;
5229 /* The string after the S/P is the name of a spec that is to be
5231 while (*p
&& *p
!= ')' && *p
!= ']')
5234 /* See if it's in the list. */
5235 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5236 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5238 name
= *(sl
->ptr_spec
);
5240 notice ("Processing spec %c%s%c, which is '%s'\n",
5241 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5250 value
= do_spec_1 (name
, 0, NULL
);
5256 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5258 const char *y
= name
;
5261 /* Copy all of NAME into BUF, but put __ after
5262 every -D and at the end of each arg. */
5265 if (! strncmp (y
, "-D", 2))
5276 && (*y
== ' ' || *y
== '\t' || *y
== '='
5277 || *y
== '}' || *y
== 0))
5290 value
= do_spec_1 (buf
, 0, NULL
);
5296 /* Discard the closing paren or bracket. */
5304 int c1
= *p
++; /* Select first or second version number. */
5305 const char *v
= compiler_version
;
5307 static const char zeroc
= '0';
5309 /* The format of the version string is
5310 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5312 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5313 while (! ISDIGIT (*v
))
5315 if (v
> compiler_version
&& v
[-1] != '-')
5318 /* If desired, advance to second version number. */
5321 /* Set V after the first period. */
5322 while (ISDIGIT (*v
))
5329 /* If desired, advance to third version number.
5330 But don't complain if it's not present */
5333 /* Set V after the second period. */
5334 while (ISDIGIT (*v
))
5336 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5342 /* Set Q at the next period or at the end. */
5344 while (ISDIGIT (*q
))
5346 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5350 /* Put that part into the command. */
5351 obstack_grow (&obstack
, v
, q
- v
);
5353 /* Default to "0" */
5354 obstack_grow (&obstack
, &zeroc
, 1);
5360 if (input_from_pipe
)
5361 do_spec_1 ("-", 0, NULL
);
5365 error ("spec failure: unrecognized spec option '%c'", c
);
5371 /* Backslash: treat next character as ordinary. */
5376 /* Ordinary character: put it into the current argument. */
5377 obstack_1grow (&obstack
, c
);
5381 /* End of string. If we are processing a spec function, we need to
5382 end any pending argument. */
5383 if (processing_spec_function
&& arg_going
)
5385 obstack_1grow (&obstack
, 0);
5386 string
= obstack_finish (&obstack
);
5387 if (this_is_library_file
)
5388 string
= find_file (string
);
5389 store_arg (string
, delete_this_arg
, this_is_output_file
);
5390 if (this_is_output_file
)
5391 outfiles
[input_file_number
] = string
;
5398 /* Look up a spec function. */
5400 static const struct spec_function
*
5401 lookup_spec_function (name
)
5404 static const struct spec_function
* const spec_function_tables
[] =
5406 static_spec_functions
,
5407 lang_specific_spec_functions
,
5409 const struct spec_function
*sf
;
5412 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5414 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5415 if (strcmp (sf
->name
, name
) == 0)
5422 /* Evaluate a spec function. */
5425 eval_spec_function (func
, args
)
5426 const char *func
, *args
;
5428 const struct spec_function
*sf
;
5429 const char *funcval
;
5431 /* Saved spec processing context. */
5432 int save_argbuf_index
;
5433 int save_argbuf_length
;
5434 const char **save_argbuf
;
5437 int save_delete_this_arg
;
5438 int save_this_is_output_file
;
5439 int save_this_is_library_file
;
5440 int save_input_from_pipe
;
5441 const char *save_suffix_subst
;
5444 sf
= lookup_spec_function (func
);
5446 fatal ("unknown spec function `%s'", func
);
5448 /* Push the spec processing context. */
5449 save_argbuf_index
= argbuf_index
;
5450 save_argbuf_length
= argbuf_length
;
5451 save_argbuf
= argbuf
;
5453 save_arg_going
= arg_going
;
5454 save_delete_this_arg
= delete_this_arg
;
5455 save_this_is_output_file
= this_is_output_file
;
5456 save_this_is_library_file
= this_is_library_file
;
5457 save_input_from_pipe
= input_from_pipe
;
5458 save_suffix_subst
= suffix_subst
;
5460 /* Create a new spec processing context, and build the function
5464 if (do_spec_2 (args
) < 0)
5465 fatal ("error in args to spec function `%s'", func
);
5467 /* argbuf_index is an index for the next argument to be inserted, and
5468 so contains the count of the args already inserted. */
5470 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5472 /* Pop the spec processing context. */
5473 argbuf_index
= save_argbuf_index
;
5474 argbuf_length
= save_argbuf_length
;
5476 argbuf
= save_argbuf
;
5478 arg_going
= save_arg_going
;
5479 delete_this_arg
= save_delete_this_arg
;
5480 this_is_output_file
= save_this_is_output_file
;
5481 this_is_library_file
= save_this_is_library_file
;
5482 input_from_pipe
= save_input_from_pipe
;
5483 suffix_subst
= save_suffix_subst
;
5488 /* Handle a spec function call of the form:
5492 ARGS is processed as a spec in a separate context and split into an
5493 argument vector in the normal fashion. The function returns a string
5494 containing a spec which we then process in the caller's context, or
5495 NULL if no processing is required. */
5498 handle_spec_function (p
)
5502 const char *endp
, *funcval
;
5505 processing_spec_function
++;
5507 /* Get the function name. */
5508 for (endp
= p
; *endp
!= '\0'; endp
++)
5510 if (*endp
== '(') /* ) */
5512 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5513 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5514 fatal ("malformed spec function name");
5516 if (*endp
!= '(') /* ) */
5517 fatal ("no arguments for spec function");
5518 func
= save_string (p
, endp
- p
);
5521 /* Get the arguments. */
5522 for (count
= 0; *endp
!= '\0'; endp
++)
5531 else if (*endp
== '(') /* ) */
5536 fatal ("malformed spec function arguments");
5537 args
= save_string (p
, endp
- p
);
5540 /* p now points to just past the end of the spec function expression. */
5542 funcval
= eval_spec_function (func
, args
);
5543 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5549 processing_spec_function
--;
5554 /* Return 0 if we call do_spec_1 and that returns -1. */
5560 const char *filter
, *body
= NULL
, *endbody
= NULL
;
5562 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5565 int include_blanks
= 1;
5566 int elide_switch
= 0;
5571 /* A '^' after the open-brace means to not give blanks before args. */
5578 /* A `|' after the open-brace means,
5579 if the test fails, output a single minus sign rather than nothing.
5580 This is used in %{|!pipe:...}. */
5587 /* A `<' after the open-brace means that the switch should be
5588 removed from the command-line. */
5594 negate
= suffix
= 0;
5597 /* A `!' after the open-brace negates the condition:
5598 succeed if the specified switch is not present. */
5602 /* A `.' after the open-brace means test against the current suffix. */
5611 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
5613 /* It doesn't make sense to mix elision with other flags. We
5614 could fatal() here, but the standard seems to be to abort. */
5620 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5623 if (*p
== '|' && (pipe_p
|| ordered
))
5628 if (*p
!= '}' && *p
!= '&')
5644 fatal ("mismatched braces in specs");
5650 body
= p
, endbody
= p
+ 1;
5655 int found
= (input_suffix
!= 0
5656 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5657 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5663 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5666 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5668 /* Substitute all matching switches as separate args. */
5671 for (i
= 0; i
< n_switches
; i
++)
5672 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5673 && check_live_switch (i
, p
- 1 - filter
))
5677 switches
[i
].live_cond
= SWITCH_IGNORE
;
5678 switches
[i
].validated
= 1;
5681 ordered
= 1, switches
[i
].ordering
= 1;
5686 /* Test for presence of the specified switch. */
5690 /* If name specified ends in *, as in {x*:...},
5691 check for %* and handle that case. */
5692 if (p
[-1] == '*' && !negate
)
5695 const char *r
= body
;
5697 /* First see whether we have %*. */
5701 if (*r
== '%' && r
[1] == '*')
5705 /* If we do, handle that case. */
5708 /* Substitute all matching switches as separate args.
5709 But do this by substituting for %*
5710 in the text that follows the colon. */
5712 unsigned hard_match_len
= p
- filter
- 1;
5713 char *string
= save_string (body
, endbody
- body
- 1);
5715 for (i
= 0; i
< n_switches
; i
++)
5716 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5717 && check_live_switch (i
, -1))
5719 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5720 /* Pass any arguments this switch has. */
5721 give_switch (i
, 1, 1);
5722 suffix_subst
= NULL
;
5725 /* We didn't match. Try again. */
5732 /* If name specified ends in *, as in {x*:...},
5733 check for presence of any switch name starting with x. */
5736 for (i
= 0; i
< n_switches
; i
++)
5738 unsigned hard_match_len
= p
- filter
- 1;
5740 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5741 && check_live_switch (i
, hard_match_len
))
5748 /* Otherwise, check for presence of exact name specified. */
5751 for (i
= 0; i
< n_switches
; i
++)
5753 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5754 && switches
[i
].part1
[p
- filter
] == 0
5755 && check_live_switch (i
, -1))
5763 /* If it is as desired (present for %{s...}, absent for %{!s...})
5764 then substitute either the switch or the specified
5765 conditional text. */
5766 if (present
!= negate
)
5770 switches
[i
].live_cond
= SWITCH_IGNORE
;
5771 switches
[i
].validated
= 1;
5773 else if (ordered
|| *p
== '&')
5774 ordered
= 1, switches
[i
].ordering
= 1;
5776 give_switch (i
, 0, include_blanks
);
5778 /* Even if many alternatives are matched, only output once. */
5783 /* Here if a %{|...} conditional fails: output a minus sign,
5784 which means "standard output" or "standard input". */
5785 do_spec_1 ("-", 0, NULL
);
5790 /* We didn't match; try again. */
5797 goto next_ampersand
;
5803 /* Doing this set of switches later preserves their command-line
5804 ordering. This is needed for e.g. -U, -D and -A. */
5805 for (i
= 0; i
< n_switches
; i
++)
5806 if (switches
[i
].ordering
== 1)
5808 switches
[i
].ordering
= 0;
5809 give_switch (i
, 0, include_blanks
);
5812 /* Process the spec just once, regardless of match count. */
5815 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5823 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5824 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5825 spec, or -1 if either exact match or %* is used.
5827 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5828 whose value does not begin with "no-" is obsoleted by the same value
5829 with the "no-", similarly for a switch with the "no-" prefix. */
5832 check_live_switch (switchnum
, prefix_length
)
5836 const char *name
= switches
[switchnum
].part1
;
5839 /* In the common case of {<at-most-one-letter>*}, a negating
5840 switch would always match, so ignore that case. We will just
5841 send the conflicting switches to the compiler phase. */
5842 if (prefix_length
>= 0 && prefix_length
<= 1)
5845 /* If we already processed this switch and determined if it was
5846 live or not, return our past determination. */
5847 if (switches
[switchnum
].live_cond
!= 0)
5848 return switches
[switchnum
].live_cond
> 0;
5850 /* Now search for duplicate in a manner that depends on the name. */
5854 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5855 if (switches
[i
].part1
[0] == 'O')
5857 switches
[switchnum
].validated
= 1;
5858 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5863 case 'W': case 'f': case 'm':
5864 if (! strncmp (name
+ 1, "no-", 3))
5866 /* We have Xno-YYY, search for XYYY. */
5867 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5868 if (switches
[i
].part1
[0] == name
[0]
5869 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5871 switches
[switchnum
].validated
= 1;
5872 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5878 /* We have XYYY, search for Xno-YYY. */
5879 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5880 if (switches
[i
].part1
[0] == name
[0]
5881 && switches
[i
].part1
[1] == 'n'
5882 && switches
[i
].part1
[2] == 'o'
5883 && switches
[i
].part1
[3] == '-'
5884 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5886 switches
[switchnum
].validated
= 1;
5887 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5894 /* Otherwise the switch is live. */
5895 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5899 /* Pass a switch to the current accumulating command
5900 in the same form that we received it.
5901 SWITCHNUM identifies the switch; it is an index into
5902 the vector of switches gcc received, which is `switches'.
5903 This cannot fail since it never finishes a command line.
5905 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5907 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5911 give_switch (switchnum
, omit_first_word
, include_blanks
)
5913 int omit_first_word
;
5916 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5919 if (!omit_first_word
)
5921 do_spec_1 ("-", 0, NULL
);
5922 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5925 if (switches
[switchnum
].args
!= 0)
5928 for (p
= switches
[switchnum
].args
; *p
; p
++)
5930 const char *arg
= *p
;
5933 do_spec_1 (" ", 0, NULL
);
5936 unsigned length
= strlen (arg
);
5939 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5940 if (arg
[length
] == '.')
5942 ((char *)arg
)[length
] = 0;
5946 do_spec_1 (arg
, 1, NULL
);
5948 ((char *)arg
)[length
] = '.';
5949 do_spec_1 (suffix_subst
, 1, NULL
);
5952 do_spec_1 (arg
, 1, NULL
);
5956 do_spec_1 (" ", 0, NULL
);
5957 switches
[switchnum
].validated
= 1;
5960 /* Search for a file named NAME trying various prefixes including the
5961 user's -B prefix and some standard ones.
5962 Return the absolute file name found. If nothing is found, return NAME. */
5970 /* Try multilib_dir if it is defined. */
5971 if (multilib_os_dir
!= NULL
)
5973 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5975 /* If we don't find it in the multi library dir, then fall
5976 through and look for it in the normal places. */
5977 if (newname
!= NULL
)
5981 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5982 return newname
? newname
: name
;
5985 /* Determine whether a directory exists. If LINKER, return 0 for
5986 certain fixed names not needed by the linker. If not LINKER, it is
5987 only important to return 0 if the host machine has a small ARG_MAX
5991 is_directory (path1
, path2
, linker
)
5996 int len1
= strlen (path1
);
5997 int len2
= strlen (path2
);
5998 char *path
= (char *) alloca (3 + len1
+ len2
);
6002 #ifndef SMALL_ARG_MAX
6007 /* Construct the path from the two parts. Ensure the string ends with "/.".
6008 The resulting path will be a directory even if the given path is a
6010 memcpy (path
, path1
, len1
);
6011 memcpy (path
+ len1
, path2
, len2
);
6012 cp
= path
+ len1
+ len2
;
6013 if (!IS_DIR_SEPARATOR (cp
[-1]))
6014 *cp
++ = DIR_SEPARATOR
;
6018 /* Exclude directories that the linker is known to search. */
6021 && strcmp (path
, concat (dir_separator_str
, "lib",
6022 dir_separator_str
, ".", NULL
)) == 0)
6024 && strcmp (path
, concat (dir_separator_str
, "usr",
6025 dir_separator_str
, "lib",
6026 dir_separator_str
, ".", NULL
)) == 0)))
6029 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6032 /* Set up the various global variables to indicate that we're processing
6033 the input file named FILENAME. */
6036 set_input (filename
)
6037 const char *filename
;
6041 input_filename
= filename
;
6042 input_filename_length
= strlen (input_filename
);
6044 input_basename
= input_filename
;
6045 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6046 /* Skip drive name so 'x:foo' is handled properly. */
6047 if (input_basename
[1] == ':')
6048 input_basename
+= 2;
6050 for (p
= input_basename
; *p
; p
++)
6051 if (IS_DIR_SEPARATOR (*p
))
6052 input_basename
= p
+ 1;
6054 /* Find a suffix starting with the last period,
6055 and set basename_length to exclude that suffix. */
6056 basename_length
= strlen (input_basename
);
6057 suffixed_basename_length
= basename_length
;
6058 p
= input_basename
+ basename_length
;
6059 while (p
!= input_basename
&& *p
!= '.')
6061 if (*p
== '.' && p
!= input_basename
)
6063 basename_length
= p
- input_basename
;
6064 input_suffix
= p
+ 1;
6069 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6070 we will need to do a stat on the input_filename. The
6071 INPUT_STAT_SET signals that the stat is needed. */
6075 /* On fatal signals, delete all the temporary files. */
6078 fatal_error (signum
)
6081 signal (signum
, SIG_DFL
);
6082 delete_failure_queue ();
6083 delete_temp_files ();
6084 /* Get the same signal again, this time not handled,
6085 so its normal effect occurs. */
6086 kill (getpid (), signum
);
6089 extern int main
PARAMS ((int, const char *const *));
6094 const char *const *argv
;
6098 int linker_was_run
= 0;
6099 char *explicit_link_files
;
6102 struct user_specs
*uptr
;
6104 p
= argv
[0] + strlen (argv
[0]);
6105 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6109 xmalloc_set_program_name (programname
);
6111 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6112 /* Perform host dependent initialization when needed. */
6113 GCC_DRIVER_HOST_INITIALIZATION
;
6116 gcc_init_libintl ();
6118 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6119 signal (SIGINT
, fatal_error
);
6121 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6122 signal (SIGHUP
, fatal_error
);
6124 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6125 signal (SIGTERM
, fatal_error
);
6127 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6128 signal (SIGPIPE
, fatal_error
);
6131 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6132 receive the signal. A different setting is inheritable */
6133 signal (SIGCHLD
, SIG_DFL
);
6136 /* Allocate the argument vector. */
6139 obstack_init (&obstack
);
6141 /* Build multilib_select, et. al from the separate lines that make up each
6142 multilib selection. */
6144 const char *const *q
= multilib_raw
;
6147 obstack_init (&multilib_obstack
);
6148 while ((p
= *q
++) != (char *) 0)
6149 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6151 obstack_1grow (&multilib_obstack
, 0);
6152 multilib_select
= obstack_finish (&multilib_obstack
);
6154 q
= multilib_matches_raw
;
6155 while ((p
= *q
++) != (char *) 0)
6156 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6158 obstack_1grow (&multilib_obstack
, 0);
6159 multilib_matches
= obstack_finish (&multilib_obstack
);
6161 q
= multilib_exclusions_raw
;
6162 while ((p
= *q
++) != (char *) 0)
6163 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6165 obstack_1grow (&multilib_obstack
, 0);
6166 multilib_exclusions
= obstack_finish (&multilib_obstack
);
6169 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6172 obstack_1grow (&multilib_obstack
, ' ');
6173 obstack_grow (&multilib_obstack
,
6174 multilib_defaults_raw
[i
],
6175 strlen (multilib_defaults_raw
[i
]));
6179 obstack_1grow (&multilib_obstack
, 0);
6180 multilib_defaults
= obstack_finish (&multilib_obstack
);
6183 /* Set up to remember the pathname of gcc and any options
6184 needed for collect. We use argv[0] instead of programname because
6185 we need the complete pathname. */
6186 obstack_init (&collect_obstack
);
6187 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6188 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6189 putenv (obstack_finish (&collect_obstack
));
6191 #ifdef INIT_ENVIRONMENT
6192 /* Set up any other necessary machine specific environment variables. */
6193 putenv (INIT_ENVIRONMENT
);
6196 /* Make a table of what switches there are (switches, n_switches).
6197 Make a table of specified input files (infiles, n_infiles).
6198 Decode switches that are handled locally. */
6200 process_command (argc
, argv
);
6202 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6203 of the command line. */
6205 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6206 do_self_spec (driver_self_specs
[i
]);
6208 /* Initialize the vector of specs to just the default.
6209 This means one element containing 0s, as a terminator. */
6211 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
6212 memcpy ((char *) compilers
, (char *) default_compilers
,
6213 sizeof default_compilers
);
6214 n_compilers
= n_default_compilers
;
6216 /* Read specs from a file if there is one. */
6218 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6219 spec_version
, dir_separator_str
, NULL
);
6220 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6222 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6223 /* Read the specs file unless it is a default one. */
6224 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6225 read_specs (specs_file
, TRUE
);
6229 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6230 for any override of as, ld and libraries. */
6231 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6232 + strlen (just_machine_suffix
)
6233 + sizeof ("specs"));
6235 strcpy (specs_file
, standard_exec_prefix
);
6236 strcat (specs_file
, just_machine_suffix
);
6237 strcat (specs_file
, "specs");
6238 if (access (specs_file
, R_OK
) == 0)
6239 read_specs (specs_file
, TRUE
);
6241 /* If not cross-compiling, look for startfiles in the standard places.
6242 Similarly, don't add the standard prefixes if startfile handling
6243 will be under control of startfile_prefix_spec. */
6244 if (*cross_compile
== '0' && *startfile_prefix_spec
== 0)
6246 if (*md_exec_prefix
)
6248 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6249 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6250 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6251 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6254 if (*md_startfile_prefix
)
6255 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
6256 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6258 if (*md_startfile_prefix_1
)
6259 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
6260 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6262 /* If standard_startfile_prefix is relative, base it on
6263 standard_exec_prefix. This lets us move the installed tree
6264 as a unit. If GCC_EXEC_PREFIX is defined, base
6265 standard_startfile_prefix on that as well. */
6266 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
6267 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
6268 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6271 if (gcc_exec_prefix
)
6272 add_prefix (&startfile_prefixes
,
6273 concat (gcc_exec_prefix
, machine_suffix
,
6274 standard_startfile_prefix
, NULL
),
6275 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6276 add_prefix (&startfile_prefixes
,
6277 concat (standard_exec_prefix
,
6279 standard_startfile_prefix
, NULL
),
6280 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6283 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6284 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6285 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6286 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6287 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6288 add_prefix (&startfile_prefixes
, "./", NULL
,
6289 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6294 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
6296 add_prefix (&startfile_prefixes
,
6297 concat (gcc_exec_prefix
, machine_suffix
,
6298 standard_startfile_prefix
, NULL
),
6299 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6302 if (*startfile_prefix_spec
!= 0
6303 && do_spec_2 (startfile_prefix_spec
) == 0
6304 && do_spec_1 (" ", 0, NULL
) == 0)
6307 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6308 add_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6309 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6312 /* Process any user specified specs in the order given on the command
6314 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6316 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6318 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6321 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6322 if (gcc_exec_prefix
)
6323 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6324 spec_version
, dir_separator_str
, NULL
);
6326 /* Now we have the specs.
6327 Set the `valid' bits for switches that match anything in any spec. */
6329 validate_all_switches ();
6331 /* Now that we have the switches and the specs, set
6332 the subdirectory based on the options. */
6333 set_multilib_dir ();
6335 /* Warn about any switches that no pass was interested in. */
6337 for (i
= 0; (int) i
< n_switches
; i
++)
6338 if (! switches
[i
].validated
)
6339 error ("unrecognized option `-%s'", switches
[i
].part1
);
6341 /* Obey some of the options. */
6343 if (print_search_dirs
)
6345 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6346 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6347 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6351 if (print_file_name
)
6353 printf ("%s\n", find_file (print_file_name
));
6357 if (print_prog_name
)
6359 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6360 printf ("%s\n", (newname
? newname
: print_prog_name
));
6364 if (print_multi_lib
)
6366 print_multilib_info ();
6370 if (print_multi_directory
)
6372 if (multilib_dir
== NULL
)
6375 printf ("%s\n", multilib_dir
);
6379 if (print_multi_os_directory
)
6381 if (multilib_os_dir
== NULL
)
6384 printf ("%s\n", multilib_os_dir
);
6388 if (target_help_flag
)
6390 /* Print if any target specific options. */
6392 /* We do not exit here. Instead we have created a fake input file
6393 called 'target-dummy' which needs to be compiled, and we pass this
6394 on to the various sub-processes, along with the --target-help
6398 if (print_help_list
)
6404 printf (_("\nFor bug reporting instructions, please see:\n"));
6405 printf ("%s.\n", bug_report_url
);
6410 /* We do not exit here. Instead we have created a fake input file
6411 called 'help-dummy' which needs to be compiled, and we pass this
6412 on the various sub-processes, along with the --help switch. */
6420 notice ("Configured with: %s\n", configuration_arguments
);
6422 #ifdef THREAD_MODEL_SPEC
6423 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6424 but there's no point in doing all this processing just to get
6425 thread_model back. */
6426 obstack_init (&obstack
);
6427 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6428 obstack_1grow (&obstack
, '\0');
6429 thrmod
= obstack_finish (&obstack
);
6431 thrmod
= thread_model
;
6434 notice ("Thread model: %s\n", thrmod
);
6436 /* compiler_version is truncated at the first space when initialized
6437 from version string, so truncate version_string at the first space
6438 before comparing. */
6439 for (n
= 0; version_string
[n
]; n
++)
6440 if (version_string
[n
] == ' ')
6443 if (! strncmp (version_string
, compiler_version
, n
)
6444 && compiler_version
[n
] == 0)
6445 notice ("gcc version %s\n", version_string
);
6447 notice ("gcc driver version %s executing gcc version %s\n",
6448 version_string
, compiler_version
);
6454 if (n_infiles
== added_libraries
)
6455 fatal ("no input files");
6457 /* Make a place to record the compiler output file names
6458 that correspond to the input files. */
6461 i
+= lang_specific_extra_outfiles
;
6462 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6464 /* Record which files were specified explicitly as link input. */
6466 explicit_link_files
= xcalloc (1, n_infiles
);
6468 for (i
= 0; (int) i
< n_infiles
; i
++)
6470 int this_file_error
= 0;
6472 /* Tell do_spec what to substitute for %i. */
6474 input_file_number
= i
;
6475 set_input (infiles
[i
].name
);
6477 /* Use the same thing in %o, unless cp->spec says otherwise. */
6479 outfiles
[i
] = input_filename
;
6481 /* Figure out which compiler from the file's suffix. */
6484 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6485 infiles
[i
].language
);
6487 if (input_file_compiler
)
6489 /* Ok, we found an applicable compiler. Run its spec. */
6491 if (input_file_compiler
->spec
[0] == '#')
6493 error ("%s: %s compiler not installed on this system",
6494 input_filename
, &input_file_compiler
->spec
[1]);
6495 this_file_error
= 1;
6499 value
= do_spec (input_file_compiler
->spec
);
6501 this_file_error
= 1;
6505 /* If this file's name does not contain a recognized suffix,
6506 record it as explicit linker input. */
6509 explicit_link_files
[i
] = 1;
6511 /* Clear the delete-on-failure queue, deleting the files in it
6512 if this compilation failed. */
6514 if (this_file_error
)
6516 delete_failure_queue ();
6519 /* If this compilation succeeded, don't delete those files later. */
6520 clear_failure_queue ();
6523 /* Reset the output file name to the first input file name, for use
6524 with %b in LINK_SPEC on a target that prefers not to emit a.out
6527 set_input (infiles
[0].name
);
6529 if (error_count
== 0)
6531 /* Make sure INPUT_FILE_NUMBER points to first available open
6533 input_file_number
= n_infiles
;
6534 if (lang_specific_pre_link ())
6538 /* Run ld to link all the compiler output files. */
6540 if (error_count
== 0)
6542 int tmp
= execution_count
;
6544 /* We'll use ld if we can't find collect2. */
6545 if (! strcmp (linker_name_spec
, "collect2"))
6547 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6549 linker_name_spec
= "ld";
6551 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6553 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6554 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6556 value
= do_spec (link_command_spec
);
6559 linker_was_run
= (tmp
!= execution_count
);
6562 /* If options said don't run linker,
6563 complain about input files to be given to the linker. */
6565 if (! linker_was_run
&& error_count
== 0)
6566 for (i
= 0; (int) i
< n_infiles
; i
++)
6567 if (explicit_link_files
[i
])
6568 error ("%s: linker input file unused because linking not done",
6571 /* Delete some or all of the temporary files we made. */
6574 delete_failure_queue ();
6575 delete_temp_files ();
6577 if (print_help_list
)
6579 printf (("\nFor bug reporting instructions, please see:\n"));
6580 printf ("%s\n", bug_report_url
);
6583 return (signal_count
!= 0 ? 2
6584 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6588 /* Find the proper compilation spec for the file name NAME,
6589 whose length is LENGTH. LANGUAGE is the specified language,
6590 or 0 if this file is to be passed to the linker. */
6592 static struct compiler
*
6593 lookup_compiler (name
, length
, language
)
6596 const char *language
;
6598 struct compiler
*cp
;
6600 /* If this was specified by the user to be a linker input, indicate that. */
6601 if (language
!= 0 && language
[0] == '*')
6604 /* Otherwise, look for the language, if one is spec'd. */
6607 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6608 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6611 error ("language %s not recognized", language
);
6615 /* Look for a suffix. */
6616 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6618 if (/* The suffix `-' matches only the file name `-'. */
6619 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6620 || (strlen (cp
->suffix
) < length
6621 /* See if the suffix matches the end of NAME. */
6622 && !strcmp (cp
->suffix
,
6623 name
+ length
- strlen (cp
->suffix
))
6628 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6629 /* look again, but case-insensitively this time. */
6631 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6633 if (/* The suffix `-' matches only the file name `-'. */
6634 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6635 || (strlen (cp
->suffix
) < length
6636 /* See if the suffix matches the end of NAME. */
6637 && ((!strcmp (cp
->suffix
,
6638 name
+ length
- strlen (cp
->suffix
))
6639 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6640 && !strcasecmp (cp
->suffix
,
6641 name
+ length
- strlen (cp
->suffix
)))
6647 if (cp
>= compilers
)
6649 if (cp
->spec
[0] != '@')
6650 /* A non-alias entry: return it. */
6653 /* An alias entry maps a suffix to a language.
6654 Search for the language; pass 0 for NAME and LENGTH
6655 to avoid infinite recursion if language not found. */
6656 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6662 save_string (s
, len
)
6666 char *result
= xmalloc (len
+ 1);
6668 memcpy (result
, s
, len
);
6674 pfatal_with_name (name
)
6677 perror_with_name (name
);
6678 delete_temp_files ();
6683 perror_with_name (name
)
6686 error ("%s: %s", name
, xstrerror (errno
));
6690 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6691 const char *errmsg_fmt
;
6692 const char *errmsg_arg
;
6696 int save_errno
= errno
;
6698 /* Space for trailing '\0' is in %s. */
6699 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6700 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6706 pfatal_with_name (errmsg_fmt
);
6709 /* Output an error message and exit */
6714 fatal ("internal gcc abort");
6717 /* Output an error message and exit */
6720 fatal
VPARAMS ((const char *msgid
, ...))
6722 VA_OPEN (ap
, msgid
);
6723 VA_FIXEDARG (ap
, const char *, msgid
);
6725 fprintf (stderr
, "%s: ", programname
);
6726 vfprintf (stderr
, _(msgid
), ap
);
6728 fprintf (stderr
, "\n");
6729 delete_temp_files ();
6734 error
VPARAMS ((const char *msgid
, ...))
6736 VA_OPEN (ap
, msgid
);
6737 VA_FIXEDARG (ap
, const char *, msgid
);
6739 fprintf (stderr
, "%s: ", programname
);
6740 vfprintf (stderr
, _(msgid
), ap
);
6743 fprintf (stderr
, "\n");
6747 notice
VPARAMS ((const char *msgid
, ...))
6749 VA_OPEN (ap
, msgid
);
6750 VA_FIXEDARG (ap
, const char *, msgid
);
6752 vfprintf (stderr
, _(msgid
), ap
);
6757 validate_all_switches ()
6759 struct compiler
*comp
;
6762 struct spec_list
*spec
;
6764 for (comp
= compilers
; comp
->spec
; comp
++)
6768 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6769 /* We have a switch spec. */
6770 validate_switches (p
+ 1);
6773 /* Look through the linked list of specs read from the specs file. */
6774 for (spec
= specs
; spec
; spec
= spec
->next
)
6776 p
= *(spec
->ptr_spec
);
6778 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6779 /* We have a switch spec. */
6780 validate_switches (p
+ 1);
6783 p
= link_command_spec
;
6785 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6786 /* We have a switch spec. */
6787 validate_switches (p
+ 1);
6790 /* Look at the switch-name that comes after START
6791 and mark as valid all supplied switches that match it. */
6794 validate_switches (start
)
6797 const char *p
= start
;
6814 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6819 else if (p
[-1] == '*')
6821 /* Mark all matching switches as valid. */
6822 for (i
= 0; i
< n_switches
; i
++)
6823 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6824 switches
[i
].validated
= 1;
6828 /* Mark an exact matching switch as valid. */
6829 for (i
= 0; i
< n_switches
; i
++)
6831 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6832 && switches
[i
].part1
[p
- filter
] == 0)
6833 switches
[i
].validated
= 1;
6837 if (*p
++ == '|' || p
[-1] == '&')
6847 static struct mdswitchstr
*mdswitches
;
6848 static int n_mdswitches
;
6850 /* Check whether a particular argument was used. The first time we
6851 canonicalize the switches to keep only the ones we care about. */
6861 const char *replace
;
6866 static struct mswitchstr
*mswitches
;
6867 static int n_mswitches
;
6872 struct mswitchstr
*matches
;
6876 /* Break multilib_matches into the component strings of string
6877 and replacement string. */
6878 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6883 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6885 q
= multilib_matches
;
6895 matches
[i
].len
= q
- matches
[i
].str
;
6897 matches
[i
].replace
= ++q
;
6898 while (*q
!= ';' && *q
!= '\0')
6904 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6910 /* Now build a list of the replacement string for switches that we care
6911 about. Make sure we allocate at least one entry. This prevents
6912 xmalloc from calling fatal, and prevents us from re-executing this
6915 = (struct mswitchstr
*)
6916 xmalloc (sizeof (struct mswitchstr
)
6917 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6918 for (i
= 0; i
< n_switches
; i
++)
6920 int xlen
= strlen (switches
[i
].part1
);
6921 for (j
= 0; j
< cnt
; j
++)
6922 if (xlen
== matches
[j
].len
6923 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6925 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6926 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6927 mswitches
[n_mswitches
].replace
= (char *) 0;
6928 mswitches
[n_mswitches
].rep_len
= 0;
6934 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6935 on the command line nor any options mutually incompatible with
6937 for (i
= 0; i
< n_mdswitches
; i
++)
6941 for (q
= multilib_options
; *q
!= '\0'; q
++)
6947 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6948 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6950 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6957 if (*q
!= ' ' && *q
!= '\0')
6959 while (*r
!= ' ' && *r
!= '\0')
6962 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6965 if (used_arg (r
, q
- r
))
6970 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6971 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6972 mswitches
[n_mswitches
].replace
= (char *) 0;
6973 mswitches
[n_mswitches
].rep_len
= 0;
6986 for (i
= 0; i
< n_mswitches
; i
++)
6987 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6994 default_arg (p
, len
)
7000 for (i
= 0; i
< n_mdswitches
; i
++)
7001 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7007 /* Work out the subdirectory to use based on the options. The format of
7008 multilib_select is a list of elements. Each element is a subdirectory
7009 name followed by a list of options followed by a semicolon. The format
7010 of multilib_exclusions is the same, but without the preceding
7011 directory. First gcc will check the exclusions, if none of the options
7012 beginning with an exclamation point are present, and all of the other
7013 options are present, then we will ignore this completely. Passing
7014 that, gcc will consider each multilib_select in turn using the same
7015 rules for matching the options. If a match is found, that subdirectory
7022 unsigned int this_path_len
;
7023 const char *this_path
, *this_arg
;
7024 const char *start
, *end
;
7026 int ok
, ndfltok
, first
;
7029 start
= multilib_defaults
;
7030 while (*start
== ' ' || *start
== '\t')
7032 while (*start
!= '\0')
7035 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7037 while (*start
== ' ' || *start
== '\t')
7046 = (struct mdswitchstr
*) xmalloc (sizeof (struct mdswitchstr
)
7048 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7050 while (*start
== ' ' || *start
== '\t')
7056 for (end
= start
+ 1;
7057 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7060 obstack_grow (&multilib_obstack
, start
, end
- start
);
7061 obstack_1grow (&multilib_obstack
, 0);
7062 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
7063 mdswitches
[i
++].len
= end
- start
;
7070 p
= multilib_exclusions
;
7073 /* Ignore newlines. */
7080 /* Check the arguments. */
7094 while (*p
!= ' ' && *p
!= ';')
7101 if (*this_arg
!= '!')
7109 ok
= used_arg (this_arg
, p
- this_arg
);
7124 p
= multilib_select
;
7127 /* Ignore newlines. */
7134 /* Get the initial path. */
7142 this_path_len
= p
- this_path
;
7144 /* Check the arguments. */
7160 while (*p
!= ' ' && *p
!= ';')
7167 if (*this_arg
!= '!')
7175 /* If this is a default argument, we can just ignore it.
7176 This is true even if this_arg begins with '!'. Beginning
7177 with '!' does not mean that this argument is necessarily
7178 inappropriate for this library: it merely means that
7179 there is a more specific library which uses this
7180 argument. If this argument is a default, we need not
7181 consider that more specific library. */
7182 ok
= used_arg (this_arg
, p
- this_arg
);
7189 if (default_arg (this_arg
, p
- this_arg
))
7198 if (this_path_len
!= 1
7199 || this_path
[0] != '.')
7201 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7204 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7205 new_multilib_dir
[this_path_len
] = '\0';
7206 q
= strchr (new_multilib_dir
, ':');
7209 multilib_dir
= new_multilib_dir
;
7216 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7218 while (q
< end
&& *q
!= ':')
7222 char *new_multilib_os_dir
= xmalloc (end
- q
);
7223 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7224 new_multilib_os_dir
[end
- q
- 1] = '\0';
7225 multilib_os_dir
= new_multilib_os_dir
;
7233 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7234 && strcmp (multilib_os_dir
, ".") == 0)
7236 free ((char *) multilib_os_dir
);
7237 multilib_os_dir
= NULL
;
7239 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7240 multilib_os_dir
= multilib_dir
;
7243 /* Print out the multiple library subdirectory selection
7244 information. This prints out a series of lines. Each line looks
7245 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7246 required. Only the desired options are printed out, the negative
7247 matches. The options are print without a leading dash. There are
7248 no spaces to make it easy to use the information in the shell.
7249 Each subdirectory is printed only once. This assumes the ordering
7250 generated by the genmultilib script. Also, we leave out ones that match
7254 print_multilib_info ()
7256 const char *p
= multilib_select
;
7257 const char *last_path
= 0, *this_path
;
7259 unsigned int last_path_len
= 0;
7264 /* Ignore newlines. */
7271 /* Get the initial path. */
7280 /* When --disable-multilib was used but target defines
7281 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7282 to find multilib_os_dir, so skip them from output. */
7283 if (this_path
[0] == '.' && this_path
[1] == ':')
7286 /* Check for matches with the multilib_exclusions. We don't bother
7287 with the '!' in either list. If any of the exclusion rules match
7288 all of its options with the select rule, we skip it. */
7290 const char *e
= multilib_exclusions
;
7291 const char *this_arg
;
7296 /* Ignore newlines. */
7303 /* Check the arguments. */
7320 while (*e
!= ' ' && *e
!= ';')
7331 int len
= e
- this_arg
;
7338 while (*q
!= ' ' && *q
!= ';')
7345 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7346 default_arg (this_arg
, e
- this_arg
))
7376 /* If this is a duplicate, skip it. */
7377 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7378 && ! strncmp (last_path
, this_path
, last_path_len
));
7380 last_path
= this_path
;
7381 last_path_len
= p
- this_path
;
7384 /* If this directory requires any default arguments, we can skip
7385 it. We will already have printed a directory identical to
7386 this one which does not require that default argument. */
7404 while (*q
!= ' ' && *q
!= ';')
7412 && default_arg (arg
, q
- arg
))
7427 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7446 use_arg
= *p
!= '!';
7451 while (*p
!= ' ' && *p
!= ';')
7466 /* If there are extra options, print them now. */
7467 if (multilib_extra
&& *multilib_extra
)
7469 int print_at
= TRUE
;
7472 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7493 /* if-exists built-in spec function.
7495 Checks to see if the file specified by the absolute pathname in
7496 ARGS exists. Returns that pathname if found.
7498 The usual use for this function is to check for a library file
7499 (whose name has been expanded with %s). */
7502 if_exists_spec_function (argc
, argv
)
7506 /* Must have only one argument. */
7507 if (argc
== 1 && IS_ABSOLUTE_PATHNAME (argv
[0]) && ! access (argv
[0], R_OK
))