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, 2003 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
75 #include "coretypes.h"
78 #if ! defined( SIGCHLD ) && defined( SIGCLD )
79 # define SIGCHLD SIGCLD
87 #ifdef HAVE_SYS_RESOURCE_H
88 #include <sys/resource.h>
90 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
91 extern int getrusage (int, struct rusage
*);
94 /* By default there is no special suffix for target executables. */
95 /* FIXME: when autoconf is fixed, remove the host check - dj */
96 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
97 #define HAVE_TARGET_EXECUTABLE_SUFFIX
100 /* By default there is no special suffix for host executables. */
101 #ifdef HOST_EXECUTABLE_SUFFIX
102 #define HAVE_HOST_EXECUTABLE_SUFFIX
104 #define HOST_EXECUTABLE_SUFFIX ""
107 /* By default, the suffix for target object files is ".o". */
108 #ifdef TARGET_OBJECT_SUFFIX
109 #define HAVE_TARGET_OBJECT_SUFFIX
111 #define TARGET_OBJECT_SUFFIX ".o"
114 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
116 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
117 #ifndef LIBRARY_PATH_ENV
118 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
122 #define kill(p,s) raise(s)
125 /* If a stage of compilation returns an exit status >= 1,
126 compilation of that file ceases. */
128 #define MIN_FATAL_STATUS 1
130 /* Flag set by cppspec.c to 1. */
133 /* Flag saying to pass the greatest exit code returned by a sub-process
134 to the calling program. */
135 static int pass_exit_codes
;
137 /* Definition of string containing the arguments given to configure. */
138 #include "configargs.h"
140 /* Flag saying to print the directories gcc will search through looking for
141 programs, libraries, etc. */
143 static int print_search_dirs
;
145 /* Flag saying to print the full filename of this file
146 as found through our usual search mechanism. */
148 static const char *print_file_name
= NULL
;
150 /* As print_file_name, but search for executable file. */
152 static const char *print_prog_name
= NULL
;
154 /* Flag saying to print the relative path we'd use to
155 find libgcc.a given the current compiler flags. */
157 static int print_multi_directory
;
159 /* Flag saying to print the relative path we'd use to
160 find OS libraries given the current compiler flags. */
162 static int print_multi_os_directory
;
164 /* Flag saying to print the list of subdirectories and
165 compiler flags used to select them in a standard form. */
167 static int print_multi_lib
;
169 /* Flag saying to print the command line options understood by gcc and its
172 static int print_help_list
;
174 /* Flag indicating whether we should print the command and arguments */
176 static int verbose_flag
;
178 /* Flag indicating whether we should ONLY print the command and
179 arguments (like verbose_flag) without executing the command.
180 Displayed arguments are quoted so that the generated command
181 line is suitable for execution. This is intended for use in
182 shell scripts to capture the driver-generated command line. */
183 static int verbose_only_flag
;
185 /* Flag indicating to print target specific command line options. */
187 static int target_help_flag
;
189 /* Flag indicating whether we should report subprocess execution times
190 (if this is supported by the system - see pexecute.c). */
192 static int report_times
;
194 /* Nonzero means place this string before uses of /, so that include
195 and library files can be found in an alternate location. */
197 #ifdef TARGET_SYSTEM_ROOT
198 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
200 static const char *target_system_root
= 0;
203 /* Nonzero means pass the updated target_system_root to the compiler. */
205 static int target_system_root_changed
;
207 /* Nonzero means append this string to target_system_root. */
209 static const char *target_sysroot_suffix
= 0;
211 /* Nonzero means append this string to target_system_root for headers. */
213 static const char *target_sysroot_hdrs_suffix
= 0;
215 /* Nonzero means write "temp" files in source directory
216 and use the source file's name in them, and don't delete them. */
218 static int save_temps_flag
;
220 /* Nonzero means use pipes to communicate between subprocesses.
221 Overridden by either of the above two flags. */
223 static int use_pipes
;
225 /* The compiler version. */
227 static const char *compiler_version
;
229 /* The target version specified with -V */
231 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
233 /* The target machine specified with -b. */
235 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
237 /* Nonzero if cross-compiling.
238 When -b is used, the value comes from the `specs' file. */
241 static const char *cross_compile
= "1";
243 static const char *cross_compile
= "0";
246 #ifdef MODIFY_TARGET_NAME
248 /* Information on how to alter the target name based on a command-line
249 switch. The only case we support now is simply appending or deleting a
250 string to or from the end of the first part of the configuration name. */
252 static const struct modify_target
254 const char *const sw
;
255 const enum add_del
{ADD
, DELETE
} add_del
;
256 const char *const str
;
258 modify_target
[] = MODIFY_TARGET_NAME
;
261 /* The number of errors that have occurred; the link phase will not be
262 run if this is nonzero. */
263 static int error_count
= 0;
265 /* Greatest exit code of sub-processes that has been encountered up to
267 static int greatest_status
= 1;
269 /* This is the obstack which we use to allocate many strings. */
271 static struct obstack obstack
;
273 /* This is the obstack to build an environment variable to pass to
274 collect2 that describes all of the relevant switches of what to
275 pass the compiler in building the list of pointers to constructors
278 static struct obstack collect_obstack
;
280 /* These structs are used to collect resource usage information for
282 #ifdef HAVE_GETRUSAGE
283 static struct rusage rus
, prus
;
286 /* Forward declaration for prototypes. */
289 static void init_spec (void);
290 static void store_arg (const char *, int, int);
291 static char *load_specs (const char *);
292 static void read_specs (const char *, int);
293 static void set_spec (const char *, const char *);
294 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
295 static char *build_search_list (struct path_prefix
*, const char *, int);
296 static void putenv_from_prefixes (struct path_prefix
*, const char *);
297 static int access_check (const char *, int);
298 static char *find_a_file (struct path_prefix
*, const char *, int, int);
299 static void add_prefix (struct path_prefix
*, const char *, const char *,
300 int, int, int *, int);
301 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
302 const char *, int, int, int *, int);
303 static void translate_options (int *, const char *const **);
304 static char *skip_whitespace (char *);
305 static void delete_if_ordinary (const char *);
306 static void delete_temp_files (void);
307 static void delete_failure_queue (void);
308 static void clear_failure_queue (void);
309 static int check_live_switch (int, int);
310 static const char *handle_braces (const char *);
311 static inline bool input_suffix_matches (const char *, const char *);
312 static inline bool switch_matches (const char *, const char *, int);
313 static inline void mark_matching_switches (const char *, const char *, int);
314 static inline void process_marked_switches (void);
315 static const char *process_brace_body (const char *, const char *, const char *, int, int);
316 static const struct spec_function
*lookup_spec_function (const char *);
317 static const char *eval_spec_function (const char *, const char *);
318 static const char *handle_spec_function (const char *);
319 static char *save_string (const char *, int);
320 static void set_collect_gcc_options (void);
321 static int do_spec_1 (const char *, int, const char *);
322 static int do_spec_2 (const char *);
323 static void do_option_spec (const char *, const char *);
324 static void do_self_spec (const char *);
325 static const char *find_file (const char *);
326 static int is_directory (const char *, const char *, int);
327 static const char *validate_switches (const char *);
328 static void validate_all_switches (void);
329 static inline void validate_switches_from_spec (const char *);
330 static void give_switch (int, int);
331 static int used_arg (const char *, int);
332 static int default_arg (const char *, int);
333 static void set_multilib_dir (void);
334 static void print_multilib_info (void);
335 static void perror_with_name (const char *);
336 static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN
;
337 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
338 static void display_help (void);
339 static void add_preprocessor_option (const char *, int);
340 static void add_assembler_option (const char *, int);
341 static void add_linker_option (const char *, int);
342 static void process_command (int, const char *const *);
343 static int execute (void);
344 static void alloc_args (void);
345 static void clear_args (void);
346 static void fatal_error (int);
347 #ifdef ENABLE_SHARED_LIBGCC
348 static void init_gcc_specs (struct obstack
*, const char *, const char *,
351 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
352 static const char *convert_filename (const char *, int, int);
355 static const char *if_exists_spec_function (int, const char **);
356 static const char *if_exists_else_spec_function (int, const char **);
358 /* The Specs Language
360 Specs are strings containing lines, each of which (if not blank)
361 is made up of a program name, and arguments separated by spaces.
362 The program name must be exact and start from root, since no path
363 is searched and it is unreliable to depend on the current working directory.
364 Redirection of input or output is not supported; the subprograms must
365 accept filenames saying what files to read and write.
367 In addition, the specs can contain %-sequences to substitute variable text
368 or for conditional text. Here is a table of all defined %-sequences.
369 Note that spaces are not generated automatically around the results of
370 expanding these sequences; therefore, you can concatenate them together
371 or with constant text in a single argument.
373 %% substitute one % into the program name or argument.
374 %i substitute the name of the input file being processed.
375 %b substitute the basename of the input file being processed.
376 This is the substring up to (and not including) the last period
377 and not including the directory.
378 %B same as %b, but include the file suffix (text after the last period).
380 substitute a file name that has suffix SUFFIX and is chosen
381 once per compilation, and mark the argument a la %d. To reduce
382 exposure to denial-of-service attacks, the file name is now
383 chosen in a way that is hard to predict even when previously
384 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
385 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
386 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
387 had been pre-processed. Previously, %g was simply substituted
388 with a file name chosen once per compilation, without regard
389 to any appended suffix (which was therefore treated just like
390 ordinary text), making such attacks more likely to succeed.
392 like %g, but if -pipe is in effect, expands simply to "-".
394 like %g, but if -pipe is in effect, expands to nothing. (We have both
395 %| and %m to accommodate differences between system assemblers; see
396 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
398 like %g, but generates a new temporary file name even if %uSUFFIX
401 substitutes the last file name generated with %uSUFFIX, generating a
402 new one if there is no such last file name. In the absence of any
403 %uSUFFIX, this is just like %gSUFFIX, except they don't share
404 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
405 would involve the generation of two distinct file names, one
406 for each `%g.s' and another for each `%U.s'. Previously, %U was
407 simply substituted with a file name chosen for the previous %u,
408 without regard to any appended suffix.
410 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
411 writable, and if save-temps is off; otherwise, substitute the name
412 of a temporary file, just like %u. This temporary file is not
413 meant for communication between processes, but rather as a junk
416 substitutes .SUFFIX for the suffixes of a matched switch's args when
417 it is subsequently output with %*. SUFFIX is terminated by the next
419 %d marks the argument containing or following the %d as a
420 temporary file name, so that that file will be deleted if CC exits
421 successfully. Unlike %g, this contributes no text to the argument.
422 %w marks the argument containing or following the %w as the
423 "output file" of this compilation. This puts the argument
424 into the sequence of arguments that %o will substitute later.
425 %V indicates that this compilation produces no "output file".
427 like %{...} but mark last argument supplied within
428 as a file to be deleted on failure.
429 %o substitutes the names of all the output files, with spaces
430 automatically placed around them. You should write spaces
431 around the %o as well or the results are undefined.
432 %o is for use in the specs for running the linker.
433 Input files whose names have no recognized suffix are not compiled
434 at all, but they are included among the output files, so they will
436 %O substitutes the suffix for object files. Note that this is
437 handled specially when it immediately follows %g, %u, or %U
438 (with or without a suffix argument) because of the need for
439 those to form complete file names. The handling is such that
440 %O is treated exactly as if it had already been substituted,
441 except that %g, %u, and %U do not currently support additional
442 SUFFIX characters following %O as they would following, for
444 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
445 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
446 and -B options) as necessary.
447 %s current argument is the name of a library or startup file of some sort.
448 Search for that file in a standard list of directories
449 and substitute the full name found.
450 %eSTR Print STR as an error message. STR is terminated by a newline.
451 Use this when inconsistent options are detected.
452 %nSTR Print STR as a notice. STR is terminated by a newline.
453 %x{OPTION} Accumulate an option for %X.
454 %X Output the accumulated linker options specified by compilations.
455 %Y Output the accumulated assembler options specified by compilations.
456 %Z Output the accumulated preprocessor options specified by compilations.
457 %a process ASM_SPEC as a spec.
458 This allows config.h to specify part of the spec for running as.
459 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
460 used here. This can be used to run a post-processor after the
461 assembler has done its job.
462 %D Dump out a -L option for each directory in startfile_prefixes.
463 If multilib_dir is set, extra entries are generated with it affixed.
464 %l process LINK_SPEC as a spec.
465 %L process LIB_SPEC as a spec.
466 %G process LIBGCC_SPEC as a spec.
467 %M output multilib_dir with directory separators replaced with "_";
468 if multilib_dir is not set or is ".", output "".
469 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
470 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
471 %C process CPP_SPEC as a spec.
472 %1 process CC1_SPEC as a spec.
473 %2 process CC1PLUS_SPEC as a spec.
474 %* substitute the variable part of a matched option. (See below.)
475 Note that each comma in the substituted string is replaced by
477 %<S remove all occurrences of -S from the command line.
478 Note - this command is position dependent. % commands in the
479 spec string before this one will see -S, % commands in the
480 spec string after this one will not.
481 %<S* remove all occurrences of all switches beginning with -S from the
484 Call the named function FUNCTION, passing it ARGS. ARGS is
485 first processed as a nested spec string, then split into an
486 argument vector in the usual fashion. The function returns
487 a string which is processed as if it had appeared literally
488 as part of the current spec.
489 %{S} substitutes the -S switch, if that switch was given to CC.
490 If that switch was not specified, this substitutes nothing.
491 Here S is a metasyntactic variable.
492 %{S*} substitutes all the switches specified to CC whose names start
493 with -S. This is used for -o, -I, etc; switches that take
494 arguments. CC considers `-o foo' as being one switch whose
495 name starts with `o'. %{o*} would substitute this text,
496 including the space; thus, two arguments would be generated.
497 %{S*&T*} likewise, but preserve order of S and T options (the order
498 of S and T in the spec is not significant). Can be any number
499 of ampersand-separated variables; for each the wild card is
500 optional. Useful for CPP as %{D*&U*&A*}.
502 %{S:X} substitutes X, if the -S switch was given to CC.
503 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
504 %{S*:X} substitutes X if one or more switches whose names start
505 with -S was given to CC. Normally X is substituted only
506 once, no matter how many such switches appeared. However,
507 if %* appears somewhere in X, then X will be substituted
508 once for each matching switch, with the %* replaced by the
509 part of that switch that matched the '*'.
510 %{.S:X} substitutes X, if processing a file with suffix S.
511 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
513 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
514 combined with !, ., and * as above binding stronger than the OR.
515 If %* appears in X, all of the alternatives must be starred, and
516 only the first matching alternative is substituted.
517 %{S:X; if S was given to CC, substitutes X;
518 T:Y; else if T was given to CC, substitutes Y;
519 :D} else substitutes D. There can be as many clauses as you need.
520 This may be combined with ., !, |, and * as above.
522 %(Spec) processes a specification defined in a specs file as *Spec:
523 %[Spec] as above, but put __ around -D arguments
525 The conditional text X in a %{S:X} or similar construct may contain
526 other nested % constructs or spaces, or even newlines. They are
527 processed as usual, as described above. Trailing white space in X is
528 ignored. White space may also appear anywhere on the left side of the
529 colon in these constructs, except between . or * and the corresponding
532 The -O, -f, -m, and -W switches are handled specifically in these
533 constructs. If another value of -O or the negated form of a -f, -m, or
534 -W switch is found later in the command line, the earlier switch
535 value is ignored, except with {S*} where S is just one letter; this
536 passes all matching options.
538 The character | at the beginning of the predicate text is used to indicate
539 that a command should be piped to the following command, but only if -pipe
542 Note that it is built into CC which switches take arguments and which
543 do not. You might think it would be useful to generalize this to
544 allow each compiler's spec to say which switches take arguments. But
545 this cannot be done in a consistent fashion. CC cannot even decide
546 which input files have been specified without knowing which switches
547 take arguments, and it must know which input files to compile in order
548 to tell which compilers to run.
550 CC also knows implicitly that arguments starting in `-l' are to be
551 treated as compiler output files, and passed to the linker in their
552 proper position among the other output files. */
554 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
556 /* config.h can define ASM_SPEC to provide extra args to the assembler
557 or extra switch-translations. */
562 /* config.h can define ASM_FINAL_SPEC to run a post processor after
563 the assembler has run. */
564 #ifndef ASM_FINAL_SPEC
565 #define ASM_FINAL_SPEC ""
568 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
569 or extra switch-translations. */
574 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
575 or extra switch-translations. */
580 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
581 or extra switch-translations. */
583 #define CC1PLUS_SPEC ""
586 /* config.h can define LINK_SPEC to provide extra args to the linker
587 or extra switch-translations. */
592 /* config.h can define LIB_SPEC to override the default libraries. */
594 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
597 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
600 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
601 /* Have gcc do the search for libgcc.a. */
602 #define LIBGCC_SPEC "libgcc.a%s"
604 #define LIBGCC_SPEC "-lgcc"
608 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
609 #ifndef STARTFILE_SPEC
610 #define STARTFILE_SPEC \
611 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
614 /* config.h can define SWITCHES_NEED_SPACES to control which options
615 require spaces between the option and the argument. */
616 #ifndef SWITCHES_NEED_SPACES
617 #define SWITCHES_NEED_SPACES ""
620 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
622 #define ENDFILE_SPEC ""
626 #define LINKER_NAME "collect2"
629 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
631 #ifndef ASM_DEBUG_SPEC
632 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
633 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
634 # define ASM_DEBUG_SPEC \
635 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
636 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
637 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
639 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
640 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
642 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
643 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
647 #ifndef ASM_DEBUG_SPEC
648 # define ASM_DEBUG_SPEC ""
651 /* Here is the spec for running the linker, after compiling all files. */
653 /* This is overridable by the target in case they need to specify the
654 -lgcc and -lc order specially, yet not require them to override all
655 of LINK_COMMAND_SPEC. */
656 #ifndef LINK_GCC_C_SEQUENCE_SPEC
657 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
660 #ifndef LINK_PIE_SPEC
662 #define LINK_PIE_SPEC "%{pie:-pie} "
664 #define LINK_PIE_SPEC "%{pie:} "
668 /* -u* was put back because both BSD and SysV seem to support it. */
669 /* %{static:} simply prevents an error message if the target machine
670 doesn't handle -static. */
671 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
672 scripts which exist in user specified directories, or in standard
674 #ifndef LINK_COMMAND_SPEC
675 #define LINK_COMMAND_SPEC "\
676 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
677 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
678 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
679 %{static:} %{L*} %(link_libgcc) %o %{fprofile-arcs:-lgcov}\
680 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
681 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
684 #ifndef LINK_LIBGCC_SPEC
685 # ifdef LINK_LIBGCC_SPECIAL
686 /* Don't generate -L options for startfile prefix list. */
687 # define LINK_LIBGCC_SPEC ""
689 /* Do generate them. */
690 # define LINK_LIBGCC_SPEC "%D"
694 #ifndef STARTFILE_PREFIX_SPEC
695 # define STARTFILE_PREFIX_SPEC ""
698 #ifndef SYSROOT_SUFFIX_SPEC
699 # define SYSROOT_SUFFIX_SPEC ""
702 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
703 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
706 static const char *asm_debug
;
707 static const char *cpp_spec
= CPP_SPEC
;
708 static const char *cc1_spec
= CC1_SPEC
;
709 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
710 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
711 static const char *asm_spec
= ASM_SPEC
;
712 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
713 static const char *link_spec
= LINK_SPEC
;
714 static const char *lib_spec
= LIB_SPEC
;
715 static const char *libgcc_spec
= LIBGCC_SPEC
;
716 static const char *endfile_spec
= ENDFILE_SPEC
;
717 static const char *startfile_spec
= STARTFILE_SPEC
;
718 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
719 static const char *linker_name_spec
= LINKER_NAME
;
720 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
721 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
722 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
723 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
724 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
726 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
727 There should be no need to override these in target dependent files,
728 but we need to copy them to the specs file so that newer versions
729 of the GCC driver can correctly drive older tool chains with the
730 appropriate -B options. */
732 /* When cpplib handles traditional preprocessing, get rid of this, and
733 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
734 that we default the front end language better. */
735 static const char *trad_capable_cpp
=
736 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
738 /* We don't wrap .d files in %W{} since a missing .d file, and
739 therefore no dependency entry, confuses make into thinking a .o
740 file that happens to exist is up-to-date. */
741 static const char *cpp_unique_options
=
742 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
743 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %I\
744 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
745 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
746 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
747 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
748 %{trigraphs} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
751 /* This contains cpp options which are common with cc1_options and are passed
752 only when preprocessing only to avoid duplication. We pass the cc1 spec
753 options to the preprocessor so that it the cc1 spec may manipulate
754 options used to set target flags. Those special target flags settings may
755 in turn cause preprocessor symbols to be defined specially. */
756 static const char *cpp_options
=
757 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
758 %{g*} %{O*} %{undef}";
760 /* This contains cpp options which are not passed when the preprocessor
761 output will be used by another program. */
762 static const char *cpp_debug_options
= "%{d*}";
764 /* NB: This is shared amongst all front-ends. */
765 static const char *cc1_options
=
766 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
767 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
768 -auxbase%{c|S:%{o*:-strip %*}%{!o*: %b}}%{!c:%{!S: %b}}\
769 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
770 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
771 %{Qn:-fno-ident} %{--help:--help}\
772 %{--target-help:--target-help}\
773 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
774 %{fsyntax-only:-o %j} %{-param*}";
776 static const char *asm_options
=
777 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
779 static const char *invoke_as
=
780 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
781 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
783 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
786 /* Some compilers have limits on line lengths, and the multilib_select
787 and/or multilib_matches strings can be very long, so we build them at
789 static struct obstack multilib_obstack
;
790 static const char *multilib_select
;
791 static const char *multilib_matches
;
792 static const char *multilib_defaults
;
793 static const char *multilib_exclusions
;
794 #include "multilib.h"
796 /* Check whether a particular argument is a default argument. */
798 #ifndef MULTILIB_DEFAULTS
799 #define MULTILIB_DEFAULTS { "" }
802 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
804 #ifndef DRIVER_SELF_SPECS
805 #define DRIVER_SELF_SPECS ""
808 static const char *const driver_self_specs
[] = { DRIVER_SELF_SPECS
};
810 #ifndef OPTION_DEFAULT_SPECS
811 #define OPTION_DEFAULT_SPECS { "", "" }
820 static const struct default_spec
821 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
825 struct user_specs
*next
;
826 const char *filename
;
829 static struct user_specs
*user_specs_head
, *user_specs_tail
;
831 #ifndef SWITCH_TAKES_ARG
832 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
835 #ifndef WORD_SWITCH_TAKES_ARG
836 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
839 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
840 /* This defines which switches stop a full compilation. */
841 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
842 ((CHAR) == 'c' || (CHAR) == 'S')
844 #ifndef SWITCH_CURTAILS_COMPILATION
845 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
846 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
850 /* Record the mapping from file suffixes for compilation specs. */
854 const char *suffix
; /* Use this compiler for input files
855 whose names end in this suffix. */
857 const char *spec
; /* To use this compiler, run this spec. */
859 const char *cpp_spec
; /* If non-NULL, substitute this spec
860 for `%C', rather than the usual
864 /* Pointer to a vector of `struct compiler' that gives the spec for
865 compiling a file, based on its suffix.
866 A file that does not end in any of these suffixes will be passed
867 unchanged to the loader and nothing else will be done to it.
869 An entry containing two 0s is used to terminate the vector.
871 If multiple entries match a file, the last matching one is used. */
873 static struct compiler
*compilers
;
875 /* Number of entries in `compilers', not counting the null terminator. */
877 static int n_compilers
;
879 /* The default list of file name suffixes and their compilation specs. */
881 static const struct compiler default_compilers
[] =
883 /* Add lists of suffixes of known languages here. If those languages
884 were not present when we built the driver, we will hit these copies
885 and be given a more meaningful error than "file not used since
886 linking is not done". */
887 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
888 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
889 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
890 {".CPP", "#C++", 0}, {".ii", "#C++", 0},
891 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
892 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
893 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
894 {".r", "#Ratfor", 0},
895 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
896 {".java", "#Java", 0}, {".class", "#Java", 0},
897 {".zip", "#Java", 0}, {".jar", "#Java", 0},
898 /* Next come the entries for C. */
901 /* cc1 has an integrated ISO C preprocessor. We should invoke the
902 external preprocessor if -save-temps is given. */
903 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
905 %{traditional|ftraditional:\
906 %eGNU C no longer supports -traditional without -E}\
907 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
908 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
909 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
911 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
912 cc1 %(cpp_unique_options) %(cc1_options)}}}\
913 %{!fsyntax-only:%(invoke_as)}}}}", 0},
915 "%{!E:%e-E required when input is from standard input}\
916 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0},
917 {".h", "@c-header", 0},
919 /* cc1 has an integrated ISO C preprocessor. We should invoke the
920 external preprocessor if -save-temps is given. */
921 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
923 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
924 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
925 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
927 -o %g.s %{!o*:--output-pch=%i.gch}\
928 %W{o*:--output-pch=%*}%V}\
929 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
930 cc1 %(cpp_unique_options) %(cc1_options)\
931 -o %g.s %{!o*:--output-pch=%i.gch}\
932 %W{o*:--output-pch=%*}%V}}}}}}", 0},
933 {".i", "@cpp-output", 0},
935 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
936 {".s", "@assembler", 0},
938 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
939 {".S", "@assembler-with-cpp", 0},
940 {"@assembler-with-cpp",
941 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
942 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
943 %{E|M|MM:%(cpp_debug_options)}\
944 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
945 as %(asm_debug) %(asm_options) %|.s %A }}}}"
947 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
948 %{E|M|MM:%(cpp_debug_options)}\
949 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
950 as %(asm_debug) %(asm_options) %m.s %A }}}}"
955 /* Mark end of table. */
959 /* Number of elements in default_compilers, not counting the terminator. */
961 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
963 /* A vector of options to give to the linker.
964 These options are accumulated by %x,
965 and substituted into the linker command with %X. */
966 static int n_linker_options
;
967 static char **linker_options
;
969 /* A vector of options to give to the assembler.
970 These options are accumulated by -Wa,
971 and substituted into the assembler command with %Y. */
972 static int n_assembler_options
;
973 static char **assembler_options
;
975 /* A vector of options to give to the preprocessor.
976 These options are accumulated by -Wp,
977 and substituted into the preprocessor command with %Z. */
978 static int n_preprocessor_options
;
979 static char **preprocessor_options
;
981 /* Define how to map long options into short ones. */
983 /* This structure describes one mapping. */
986 /* The long option's name. */
987 const char *const name
;
988 /* The equivalent short option. */
989 const char *const equivalent
;
990 /* Argument info. A string of flag chars; NULL equals no options.
991 a => argument required.
992 o => argument optional.
993 j => join argument to equivalent, making one word.
994 * => require other text after NAME as an argument. */
995 const char *const arg_info
;
998 /* This is the table of mappings. Mappings are tried sequentially
999 for each option encountered; the first one that matches, wins. */
1001 static const struct option_map option_map
[] =
1003 {"--all-warnings", "-Wall", 0},
1004 {"--ansi", "-ansi", 0},
1005 {"--assemble", "-S", 0},
1006 {"--assert", "-A", "a"},
1007 {"--classpath", "-fclasspath=", "aj"},
1008 {"--bootclasspath", "-fbootclasspath=", "aj"},
1009 {"--CLASSPATH", "-fclasspath=", "aj"},
1010 {"--comments", "-C", 0},
1011 {"--comments-in-macros", "-CC", 0},
1012 {"--compile", "-c", 0},
1013 {"--debug", "-g", "oj"},
1014 {"--define-macro", "-D", "aj"},
1015 {"--dependencies", "-M", 0},
1016 {"--dump", "-d", "a"},
1017 {"--dumpbase", "-dumpbase", "a"},
1018 {"--entry", "-e", 0},
1019 {"--extra-warnings", "-W", 0},
1020 {"--for-assembler", "-Wa", "a"},
1021 {"--for-linker", "-Xlinker", "a"},
1022 {"--force-link", "-u", "a"},
1023 {"--imacros", "-imacros", "a"},
1024 {"--include", "-include", "a"},
1025 {"--include-barrier", "-I-", 0},
1026 {"--include-directory", "-I", "aj"},
1027 {"--include-directory-after", "-idirafter", "a"},
1028 {"--include-prefix", "-iprefix", "a"},
1029 {"--include-with-prefix", "-iwithprefix", "a"},
1030 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1031 {"--include-with-prefix-after", "-iwithprefix", "a"},
1032 {"--language", "-x", "a"},
1033 {"--library-directory", "-L", "a"},
1034 {"--machine", "-m", "aj"},
1035 {"--machine-", "-m", "*j"},
1036 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1037 {"--no-line-commands", "-P", 0},
1038 {"--no-precompiled-includes", "-noprecomp", 0},
1039 {"--no-standard-includes", "-nostdinc", 0},
1040 {"--no-standard-libraries", "-nostdlib", 0},
1041 {"--no-warnings", "-w", 0},
1042 {"--optimize", "-O", "oj"},
1043 {"--output", "-o", "a"},
1044 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1045 {"--param", "--param", "a"},
1046 {"--pedantic", "-pedantic", 0},
1047 {"--pedantic-errors", "-pedantic-errors", 0},
1048 {"--pie", "-pie", 0},
1049 {"--pipe", "-pipe", 0},
1050 {"--prefix", "-B", "a"},
1051 {"--preprocess", "-E", 0},
1052 {"--print-search-dirs", "-print-search-dirs", 0},
1053 {"--print-file-name", "-print-file-name=", "aj"},
1054 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1055 {"--print-missing-file-dependencies", "-MG", 0},
1056 {"--print-multi-lib", "-print-multi-lib", 0},
1057 {"--print-multi-directory", "-print-multi-directory", 0},
1058 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1059 {"--print-prog-name", "-print-prog-name=", "aj"},
1060 {"--profile", "-p", 0},
1061 {"--profile-blocks", "-a", 0},
1062 {"--quiet", "-q", 0},
1063 {"--resource", "-fcompile-resource=", "aj"},
1064 {"--save-temps", "-save-temps", 0},
1065 {"--shared", "-shared", 0},
1066 {"--silent", "-q", 0},
1067 {"--specs", "-specs=", "aj"},
1068 {"--static", "-static", 0},
1069 {"--std", "-std=", "aj"},
1070 {"--symbolic", "-symbolic", 0},
1071 {"--target", "-b", "a"},
1072 {"--time", "-time", 0},
1073 {"--trace-includes", "-H", 0},
1074 {"--traditional", "-traditional", 0},
1075 {"--traditional-cpp", "-traditional-cpp", 0},
1076 {"--trigraphs", "-trigraphs", 0},
1077 {"--undefine-macro", "-U", "aj"},
1078 {"--use-version", "-V", "a"},
1079 {"--user-dependencies", "-MM", 0},
1080 {"--verbose", "-v", 0},
1081 {"--warn-", "-W", "*j"},
1082 {"--write-dependencies", "-MD", 0},
1083 {"--write-user-dependencies", "-MMD", 0},
1088 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1089 static const struct {
1090 const char *const option_found
;
1091 const char *const replacements
;
1092 } target_option_translations
[] =
1094 TARGET_OPTION_TRANSLATE_TABLE
,
1099 /* Translate the options described by *ARGCP and *ARGVP.
1100 Make a new vector and store it back in *ARGVP,
1101 and store its length in *ARGVC. */
1104 translate_options (int *argcp
, const char *const **argvp
)
1108 const char *const *argv
= *argvp
;
1109 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1110 const char **newv
= xmalloc (newvsize
);
1114 newv
[newindex
++] = argv
[i
++];
1118 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1122 target_option_translations
[tott_idx
].option_found
;
1125 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1132 for (sp
= target_option_translations
[tott_idx
].replacements
;
1139 newvsize
+= spaces
* sizeof (const char *);
1140 newv
= xrealloc (newv
, newvsize
);
1142 sp
= target_option_translations
[tott_idx
].replacements
;
1151 newv
[newindex
++] = np
;
1152 while (*np
!= ' ' && *np
)
1163 if (target_option_translations
[tott_idx
].option_found
)
1167 /* Translate -- options. */
1168 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1171 /* Find a mapping that applies to this option. */
1172 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1174 size_t optlen
= strlen (option_map
[j
].name
);
1175 size_t arglen
= strlen (argv
[i
]);
1176 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1177 const char *arginfo
= option_map
[j
].arg_info
;
1182 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1184 const char *arg
= 0;
1186 if (arglen
< optlen
)
1189 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1190 if (strlen (option_map
[k
].name
) >= arglen
1191 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1193 error ("ambiguous abbreviation %s", argv
[i
]);
1197 if (k
!= ARRAY_SIZE (option_map
))
1201 if (arglen
> optlen
)
1203 /* If the option has an argument, accept that. */
1204 if (argv
[i
][optlen
] == '=')
1205 arg
= argv
[i
] + optlen
+ 1;
1207 /* If this mapping requires extra text at end of name,
1208 accept that as "argument". */
1209 else if (strchr (arginfo
, '*') != 0)
1210 arg
= argv
[i
] + optlen
;
1212 /* Otherwise, extra text at end means mismatch.
1213 Try other mappings. */
1218 else if (strchr (arginfo
, '*') != 0)
1220 error ("incomplete `%s' option", option_map
[j
].name
);
1224 /* Handle arguments. */
1225 if (strchr (arginfo
, 'a') != 0)
1231 error ("missing argument to `%s' option",
1232 option_map
[j
].name
);
1239 else if (strchr (arginfo
, '*') != 0)
1241 else if (strchr (arginfo
, 'o') == 0)
1244 error ("extraneous argument to `%s' option",
1245 option_map
[j
].name
);
1249 /* Store the translation as one argv elt or as two. */
1250 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1251 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1255 newv
[newindex
++] = option_map
[j
].equivalent
;
1256 newv
[newindex
++] = arg
;
1259 newv
[newindex
++] = option_map
[j
].equivalent
;
1267 /* Handle old-fashioned options--just copy them through,
1268 with their arguments. */
1269 else if (argv
[i
][0] == '-')
1271 const char *p
= argv
[i
] + 1;
1275 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1276 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1277 else if (WORD_SWITCH_TAKES_ARG (p
))
1278 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1279 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1282 else if (! strcmp (p
, "Xlinker"))
1284 else if (! strcmp (p
, "Xpreprocessor"))
1286 else if (! strcmp (p
, "Xassembler"))
1289 /* Watch out for an option at the end of the command line that
1290 is missing arguments, and avoid skipping past the end of the
1292 if (nskip
+ i
> argc
)
1297 newv
[newindex
++] = argv
[i
++];
1302 /* Ordinary operands, or +e options. */
1303 newv
[newindex
++] = argv
[i
++];
1313 skip_whitespace (char *p
)
1317 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1318 be considered whitespace. */
1319 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1321 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1335 /* Structures to keep track of prefixes to try when looking for files. */
1339 const char *prefix
; /* String to prepend to the path. */
1340 struct prefix_list
*next
; /* Next in linked list. */
1341 int require_machine_suffix
; /* Don't use without machine_suffix. */
1342 /* 2 means try both machine_suffix and just_machine_suffix. */
1343 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1344 int priority
; /* Sort key - priority within list. */
1345 int os_multilib
; /* 1 if OS multilib scheme should be used,
1346 0 for GCC multilib scheme. */
1351 struct prefix_list
*plist
; /* List of prefixes to try */
1352 int max_len
; /* Max length of a prefix in PLIST */
1353 const char *name
; /* Name of this list (used in config stuff) */
1356 /* List of prefixes to try when looking for executables. */
1358 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1360 /* List of prefixes to try when looking for startup (crt0) files. */
1362 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1364 /* List of prefixes to try when looking for include files. */
1366 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1368 /* Suffix to attach to directories searched for commands.
1369 This looks like `MACHINE/VERSION/'. */
1371 static const char *machine_suffix
= 0;
1373 /* Suffix to attach to directories searched for commands.
1374 This is just `MACHINE/'. */
1376 static const char *just_machine_suffix
= 0;
1378 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1380 static const char *gcc_exec_prefix
;
1382 /* Adjusted value of standard_libexec_prefix. */
1384 static const char *gcc_libexec_prefix
;
1386 /* Default prefixes to attach to command names. */
1388 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1389 #undef MD_EXEC_PREFIX
1390 #undef MD_STARTFILE_PREFIX
1391 #undef MD_STARTFILE_PREFIX_1
1394 /* If no prefixes defined, use the null string, which will disable them. */
1395 #ifndef MD_EXEC_PREFIX
1396 #define MD_EXEC_PREFIX ""
1398 #ifndef MD_STARTFILE_PREFIX
1399 #define MD_STARTFILE_PREFIX ""
1401 #ifndef MD_STARTFILE_PREFIX_1
1402 #define MD_STARTFILE_PREFIX_1 ""
1405 /* Supply defaults for the standard prefixes. */
1407 #ifndef STANDARD_EXEC_PREFIX
1408 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc/"
1410 #ifndef STANDARD_STARTFILE_PREFIX
1411 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1413 #ifndef TOOLDIR_BASE_PREFIX
1414 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1416 #ifndef STANDARD_BINDIR_PREFIX
1417 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1420 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1421 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1422 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1423 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1425 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1426 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1427 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1428 static const char *const standard_startfile_prefix_1
= "/lib/";
1429 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1431 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1432 static const char *tooldir_prefix
;
1434 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1436 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1438 /* Subdirectory to use for locating libraries. Set by
1439 set_multilib_dir based on the compilation options. */
1441 static const char *multilib_dir
;
1443 /* Subdirectory to use for locating libraries in OS conventions. Set by
1444 set_multilib_dir based on the compilation options. */
1446 static const char *multilib_os_dir
;
1448 /* Structure to keep track of the specs that have been defined so far.
1449 These are accessed using %(specname) or %[specname] in a compiler
1454 /* The following 2 fields must be first */
1455 /* to allow EXTRA_SPECS to be initialized */
1456 const char *name
; /* name of the spec. */
1457 const char *ptr
; /* available ptr if no static pointer */
1459 /* The following fields are not initialized */
1460 /* by EXTRA_SPECS */
1461 const char **ptr_spec
; /* pointer to the spec itself. */
1462 struct spec_list
*next
; /* Next spec in linked list. */
1463 int name_len
; /* length of the name */
1464 int alloc_p
; /* whether string was allocated */
1467 #define INIT_STATIC_SPEC(NAME,PTR) \
1468 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1470 /* List of statically defined specs. */
1471 static struct spec_list static_specs
[] =
1473 INIT_STATIC_SPEC ("asm", &asm_spec
),
1474 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1475 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1476 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1477 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1478 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1479 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1480 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1481 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1482 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1483 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1484 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1485 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1486 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1487 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1488 INIT_STATIC_SPEC ("link", &link_spec
),
1489 INIT_STATIC_SPEC ("lib", &lib_spec
),
1490 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1491 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1492 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1493 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1494 INIT_STATIC_SPEC ("version", &compiler_version
),
1495 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1496 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1497 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1498 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1499 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1500 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1501 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1502 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1503 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1504 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1505 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1506 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1507 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1508 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1511 #ifdef EXTRA_SPECS /* additional specs needed */
1512 /* Structure to keep track of just the first two args of a spec_list.
1513 That is all that the EXTRA_SPECS macro gives us. */
1516 const char *const name
;
1517 const char *const ptr
;
1520 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1521 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1524 /* List of dynamically allocates specs that have been defined so far. */
1526 static struct spec_list
*specs
= (struct spec_list
*) 0;
1528 /* List of static spec functions. */
1530 static const struct spec_function static_spec_functions
[] =
1532 { "if-exists", if_exists_spec_function
},
1533 { "if-exists-else", if_exists_else_spec_function
},
1537 static int processing_spec_function
;
1539 /* Add appropriate libgcc specs to OBSTACK, taking into account
1540 various permutations of -shared-libgcc, -shared, and such. */
1542 #ifdef ENABLE_SHARED_LIBGCC
1544 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1545 const char *static_name
, const char *eh_name
)
1549 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1550 "}%{!static:%{!static-libgcc:",
1551 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1552 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1553 static_name
, "}}%{shared:",
1555 "%{shared-libgcc:", shared_name
,
1556 "}%{!shared-libgcc:", static_name
, "}",
1562 obstack_grow (obstack
, buf
, strlen (buf
));
1565 #endif /* ENABLE_SHARED_LIBGCC */
1567 /* Initialize the specs lookup routines. */
1572 struct spec_list
*next
= (struct spec_list
*) 0;
1573 struct spec_list
*sl
= (struct spec_list
*) 0;
1577 return; /* Already initialized. */
1580 notice ("Using built-in specs.\n");
1583 extra_specs
= xcalloc (sizeof (struct spec_list
),
1584 ARRAY_SIZE (extra_specs_1
));
1586 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1588 sl
= &extra_specs
[i
];
1589 sl
->name
= extra_specs_1
[i
].name
;
1590 sl
->ptr
= extra_specs_1
[i
].ptr
;
1592 sl
->name_len
= strlen (sl
->name
);
1593 sl
->ptr_spec
= &sl
->ptr
;
1598 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1599 on ?: in file-scope variable initializations. */
1600 asm_debug
= ASM_DEBUG_SPEC
;
1602 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1604 sl
= &static_specs
[i
];
1609 #ifdef ENABLE_SHARED_LIBGCC
1610 /* ??? If neither -shared-libgcc nor --static-libgcc was
1611 seen, then we should be making an educated guess. Some proposed
1612 heuristics for ELF include:
1614 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1615 program will be doing dynamic loading, which will likely
1616 need the shared libgcc.
1618 (2) If "-ldl", then it's also a fair bet that we're doing
1621 (3) For each ET_DYN we're linking against (either through -lfoo
1622 or /some/path/foo.so), check to see whether it or one of
1623 its dependencies depends on a shared libgcc.
1627 If the runtime is fixed to look for program headers instead
1628 of calling __register_frame_info at all, for each object,
1629 use the shared libgcc if any EH symbol referenced.
1631 If crtstuff is fixed to not invoke __register_frame_info
1632 automatically, for each object, use the shared libgcc if
1633 any non-empty unwind section found.
1635 Doing any of this probably requires invoking an external program to
1636 do the actual object file scanning. */
1638 const char *p
= libgcc_spec
;
1641 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1642 when given the proper command line arguments. */
1645 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1647 init_gcc_specs (&obstack
,
1648 #ifdef NO_SHARED_LIBGCC_MULTILIB
1653 #ifdef USE_LIBUNWIND_EXCEPTIONS
1662 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1664 /* Ug. We don't know shared library extensions. Hope that
1665 systems that use this form don't do shared libraries. */
1666 init_gcc_specs (&obstack
,
1667 #ifdef NO_SHARED_LIBGCC_MULTILIB
1680 obstack_1grow (&obstack
, *p
);
1681 in_sep
= (*p
== ' ');
1686 obstack_1grow (&obstack
, '\0');
1687 libgcc_spec
= obstack_finish (&obstack
);
1690 #ifdef USE_AS_TRADITIONAL_FORMAT
1691 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1693 static const char tf
[] = "--traditional-format ";
1694 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1695 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1696 asm_spec
= obstack_finish (&obstack
);
1700 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1701 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1702 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1703 link_spec
= obstack_finish (&obstack
);
1709 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1710 removed; If the spec starts with a + then SPEC is added to the end of the
1714 set_spec (const char *name
, const char *spec
)
1716 struct spec_list
*sl
;
1717 const char *old_spec
;
1718 int name_len
= strlen (name
);
1721 /* If this is the first call, initialize the statically allocated specs. */
1724 struct spec_list
*next
= (struct spec_list
*) 0;
1725 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1727 sl
= &static_specs
[i
];
1734 /* See if the spec already exists. */
1735 for (sl
= specs
; sl
; sl
= sl
->next
)
1736 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1741 /* Not found - make it. */
1742 sl
= xmalloc (sizeof (struct spec_list
));
1743 sl
->name
= xstrdup (name
);
1744 sl
->name_len
= name_len
;
1745 sl
->ptr_spec
= &sl
->ptr
;
1747 *(sl
->ptr_spec
) = "";
1752 old_spec
= *(sl
->ptr_spec
);
1753 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1754 ? concat (old_spec
, spec
+ 1, NULL
)
1759 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1762 /* Free the old spec. */
1763 if (old_spec
&& sl
->alloc_p
)
1764 free ((void *) old_spec
);
1769 /* Accumulate a command (program name and args), and run it. */
1771 /* Vector of pointers to arguments in the current line of specifications. */
1773 static const char **argbuf
;
1775 /* Number of elements allocated in argbuf. */
1777 static int argbuf_length
;
1779 /* Number of elements in argbuf currently in use (containing args). */
1781 static int argbuf_index
;
1783 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1784 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1787 static struct temp_name
{
1788 const char *suffix
; /* suffix associated with the code. */
1789 int length
; /* strlen (suffix). */
1790 int unique
; /* Indicates whether %g or %u/%U was used. */
1791 const char *filename
; /* associated filename. */
1792 int filename_length
; /* strlen (filename). */
1793 struct temp_name
*next
;
1796 /* Number of commands executed so far. */
1798 static int execution_count
;
1800 /* Number of commands that exited with a signal. */
1802 static int signal_count
;
1804 /* Name with which this program was invoked. */
1806 static const char *programname
;
1808 /* Allocate the argument vector. */
1814 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1817 /* Clear out the vector of arguments (after a command is executed). */
1825 /* Add one argument to the vector at the end.
1826 This is done when a space is seen or at the end of the line.
1827 If DELETE_ALWAYS is nonzero, the arg is a filename
1828 and the file should be deleted eventually.
1829 If DELETE_FAILURE is nonzero, the arg is a filename
1830 and the file should be deleted if this compilation fails. */
1833 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1835 if (argbuf_index
+ 1 == argbuf_length
)
1836 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1838 argbuf
[argbuf_index
++] = arg
;
1839 argbuf
[argbuf_index
] = 0;
1841 if (delete_always
|| delete_failure
)
1842 record_temp_file (arg
, delete_always
, delete_failure
);
1845 /* Load specs from a file name named FILENAME, replacing occurrences of
1846 various different types of line-endings, \r\n, \n\r and just \r, with
1850 load_specs (const char *filename
)
1854 struct stat statbuf
;
1861 notice ("Reading specs from %s\n", filename
);
1863 /* Open and stat the file. */
1864 desc
= open (filename
, O_RDONLY
, 0);
1866 pfatal_with_name (filename
);
1867 if (stat (filename
, &statbuf
) < 0)
1868 pfatal_with_name (filename
);
1870 /* Read contents of file into BUFFER. */
1871 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1872 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1874 pfatal_with_name (filename
);
1875 buffer
[readlen
] = 0;
1878 specs
= xmalloc (readlen
+ 1);
1880 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1886 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1888 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1902 /* Read compilation specs from a file named FILENAME,
1903 replacing the default ones.
1905 A suffix which starts with `*' is a definition for
1906 one of the machine-specific sub-specs. The "suffix" should be
1907 *asm, *cc1, *cpp, *link, *startfile, etc.
1908 The corresponding spec is stored in asm_spec, etc.,
1909 rather than in the `compilers' vector.
1911 Anything invalid in the file is a fatal error. */
1914 read_specs (const char *filename
, int main_p
)
1919 buffer
= load_specs (filename
);
1921 /* Scan BUFFER for specs, putting them in the vector. */
1927 char *in
, *out
, *p1
, *p2
, *p3
;
1929 /* Advance P in BUFFER to the next nonblank nocomment line. */
1930 p
= skip_whitespace (p
);
1934 /* Is this a special command that starts with '%'? */
1935 /* Don't allow this for the main specs file, since it would
1936 encourage people to overwrite it. */
1937 if (*p
== '%' && !main_p
)
1940 while (*p
&& *p
!= '\n')
1946 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1947 && (p1
[sizeof "%include" - 1] == ' '
1948 || p1
[sizeof "%include" - 1] == '\t'))
1952 p1
+= sizeof ("%include");
1953 while (*p1
== ' ' || *p1
== '\t')
1956 if (*p1
++ != '<' || p
[-2] != '>')
1957 fatal ("specs %%include syntax malformed after %ld characters",
1958 (long) (p1
- buffer
+ 1));
1961 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1962 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1965 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1966 && (p1
[sizeof "%include_noerr" - 1] == ' '
1967 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1971 p1
+= sizeof "%include_noerr";
1972 while (*p1
== ' ' || *p1
== '\t')
1975 if (*p1
++ != '<' || p
[-2] != '>')
1976 fatal ("specs %%include syntax malformed after %ld characters",
1977 (long) (p1
- buffer
+ 1));
1980 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1982 read_specs (new_filename
, FALSE
);
1983 else if (verbose_flag
)
1984 notice ("could not find specs file %s\n", p1
);
1987 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1988 && (p1
[sizeof "%rename" - 1] == ' '
1989 || p1
[sizeof "%rename" - 1] == '\t'))
1992 struct spec_list
*sl
;
1993 struct spec_list
*newsl
;
1995 /* Get original name. */
1996 p1
+= sizeof "%rename";
1997 while (*p1
== ' ' || *p1
== '\t')
2000 if (! ISALPHA ((unsigned char) *p1
))
2001 fatal ("specs %%rename syntax malformed after %ld characters",
2002 (long) (p1
- buffer
));
2005 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2008 if (*p2
!= ' ' && *p2
!= '\t')
2009 fatal ("specs %%rename syntax malformed after %ld characters",
2010 (long) (p2
- buffer
));
2014 while (*p2
== ' ' || *p2
== '\t')
2017 if (! ISALPHA ((unsigned char) *p2
))
2018 fatal ("specs %%rename syntax malformed after %ld characters",
2019 (long) (p2
- buffer
));
2021 /* Get new spec name. */
2023 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2027 fatal ("specs %%rename syntax malformed after %ld characters",
2028 (long) (p3
- buffer
));
2031 for (sl
= specs
; sl
; sl
= sl
->next
)
2032 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2036 fatal ("specs %s spec was not found to be renamed", p1
);
2038 if (strcmp (p1
, p2
) == 0)
2041 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2042 if (strcmp (newsl
->name
, p2
) == 0)
2043 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2048 notice ("rename spec %s to %s\n", p1
, p2
);
2050 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2054 set_spec (p2
, *(sl
->ptr_spec
));
2056 free ((void *) *(sl
->ptr_spec
));
2058 *(sl
->ptr_spec
) = "";
2063 fatal ("specs unknown %% command after %ld characters",
2064 (long) (p1
- buffer
));
2067 /* Find the colon that should end the suffix. */
2069 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2072 /* The colon shouldn't be missing. */
2074 fatal ("specs file malformed after %ld characters",
2075 (long) (p1
- buffer
));
2077 /* Skip back over trailing whitespace. */
2079 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2082 /* Copy the suffix to a string. */
2083 suffix
= save_string (p
, p2
- p
);
2084 /* Find the next line. */
2085 p
= skip_whitespace (p1
+ 1);
2087 fatal ("specs file malformed after %ld characters",
2088 (long) (p
- buffer
));
2091 /* Find next blank line or end of string. */
2092 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2095 /* Specs end at the blank line and do not include the newline. */
2096 spec
= save_string (p
, p1
- p
);
2099 /* Delete backslash-newline sequences from the spec. */
2104 if (in
[0] == '\\' && in
[1] == '\n')
2106 else if (in
[0] == '#')
2107 while (*in
&& *in
!= '\n')
2115 if (suffix
[0] == '*')
2117 if (! strcmp (suffix
, "*link_command"))
2118 link_command_spec
= spec
;
2120 set_spec (suffix
+ 1, spec
);
2124 /* Add this pair to the vector. */
2126 = xrealloc (compilers
,
2127 (n_compilers
+ 2) * sizeof (struct compiler
));
2129 compilers
[n_compilers
].suffix
= suffix
;
2130 compilers
[n_compilers
].spec
= spec
;
2132 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2136 link_command_spec
= spec
;
2139 if (link_command_spec
== 0)
2140 fatal ("spec file has no spec for linking");
2143 /* Record the names of temporary files we tell compilers to write,
2144 and delete them at the end of the run. */
2146 /* This is the common prefix we use to make temp file names.
2147 It is chosen once for each run of this program.
2148 It is substituted into a spec by %g or %j.
2149 Thus, all temp file names contain this prefix.
2150 In practice, all temp file names start with this prefix.
2152 This prefix comes from the envvar TMPDIR if it is defined;
2153 otherwise, from the P_tmpdir macro if that is defined;
2154 otherwise, in /usr/tmp or /tmp;
2155 or finally the current directory if all else fails. */
2157 static const char *temp_filename
;
2159 /* Length of the prefix. */
2161 static int temp_filename_length
;
2163 /* Define the list of temporary files to delete. */
2168 struct temp_file
*next
;
2171 /* Queue of files to delete on success or failure of compilation. */
2172 static struct temp_file
*always_delete_queue
;
2173 /* Queue of files to delete on failure of compilation. */
2174 static struct temp_file
*failure_delete_queue
;
2176 /* Record FILENAME as a file to be deleted automatically.
2177 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2178 otherwise delete it in any case.
2179 FAIL_DELETE nonzero means delete it if a compilation step fails;
2180 otherwise delete it in any case. */
2183 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2185 char *const name
= xstrdup (filename
);
2189 struct temp_file
*temp
;
2190 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2191 if (! strcmp (name
, temp
->name
))
2194 temp
= xmalloc (sizeof (struct temp_file
));
2195 temp
->next
= always_delete_queue
;
2197 always_delete_queue
= temp
;
2204 struct temp_file
*temp
;
2205 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2206 if (! strcmp (name
, temp
->name
))
2209 temp
= xmalloc (sizeof (struct temp_file
));
2210 temp
->next
= failure_delete_queue
;
2212 failure_delete_queue
= temp
;
2218 /* Delete all the temporary files whose names we previously recorded. */
2221 delete_if_ordinary (const char *name
)
2227 printf ("Delete %s? (y or n) ", name
);
2231 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2234 if (i
== 'y' || i
== 'Y')
2236 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2237 if (unlink (name
) < 0)
2239 perror_with_name (name
);
2243 delete_temp_files (void)
2245 struct temp_file
*temp
;
2247 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2248 delete_if_ordinary (temp
->name
);
2249 always_delete_queue
= 0;
2252 /* Delete all the files to be deleted on error. */
2255 delete_failure_queue (void)
2257 struct temp_file
*temp
;
2259 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2260 delete_if_ordinary (temp
->name
);
2264 clear_failure_queue (void)
2266 failure_delete_queue
= 0;
2269 /* Build a list of search directories from PATHS.
2270 PREFIX is a string to prepend to the list.
2271 If CHECK_DIR_P is nonzero we ensure the directory exists.
2272 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2273 It is also used by the --print-search-dirs flag. */
2276 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2279 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2281 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2282 int first_time
= TRUE
;
2283 struct prefix_list
*pprefix
;
2285 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2286 obstack_1grow (&collect_obstack
, '=');
2288 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2290 int len
= strlen (pprefix
->prefix
);
2294 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2297 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2300 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2301 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2304 if (just_machine_suffix
2305 && pprefix
->require_machine_suffix
== 2
2307 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2310 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2313 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2314 obstack_grow (&collect_obstack
, just_machine_suffix
,
2318 if (! pprefix
->require_machine_suffix
)
2321 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2324 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2328 obstack_1grow (&collect_obstack
, '\0');
2329 return obstack_finish (&collect_obstack
);
2332 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2336 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2338 putenv (build_search_list (paths
, env_var
, 1));
2341 /* Check whether NAME can be accessed in MODE. This is like access,
2342 except that it never considers directories to be executable. */
2345 access_check (const char *name
, int mode
)
2351 if (stat (name
, &st
) < 0
2352 || S_ISDIR (st
.st_mode
))
2356 return access (name
, mode
);
2359 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2360 access to check permissions.
2361 Return 0 if not found, otherwise return its name, allocated with malloc. */
2364 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2368 const char *const file_suffix
=
2369 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2370 struct prefix_list
*pl
;
2371 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2372 const char *multilib_name
, *multilib_os_name
;
2374 #ifdef DEFAULT_ASSEMBLER
2375 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2376 return xstrdup (DEFAULT_ASSEMBLER
);
2379 #ifdef DEFAULT_LINKER
2380 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2381 return xstrdup (DEFAULT_LINKER
);
2385 len
+= strlen (machine_suffix
);
2387 multilib_name
= name
;
2388 multilib_os_name
= name
;
2389 if (multilib
&& multilib_os_dir
)
2391 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2392 int len2
= strlen (multilib_os_dir
) + 1;
2394 len
+= len1
> len2
? len1
: len2
;
2396 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2398 if (strcmp (multilib_os_dir
, ".") != 0)
2399 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2403 temp
= xmalloc (len
);
2405 /* Determine the filename to execute (special case for absolute paths). */
2407 if (IS_ABSOLUTE_PATH (name
))
2409 if (access (name
, mode
) == 0)
2411 strcpy (temp
, name
);
2416 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2418 const char *this_name
2419 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2423 /* Some systems have a suffix for executable files.
2424 So try appending that first. */
2425 if (file_suffix
[0] != 0)
2427 strcpy (temp
, pl
->prefix
);
2428 strcat (temp
, machine_suffix
);
2429 strcat (temp
, multilib_name
);
2430 strcat (temp
, file_suffix
);
2431 if (access_check (temp
, mode
) == 0)
2433 if (pl
->used_flag_ptr
!= 0)
2434 *pl
->used_flag_ptr
= 1;
2439 /* Now try just the multilib_name. */
2440 strcpy (temp
, pl
->prefix
);
2441 strcat (temp
, machine_suffix
);
2442 strcat (temp
, multilib_name
);
2443 if (access_check (temp
, mode
) == 0)
2445 if (pl
->used_flag_ptr
!= 0)
2446 *pl
->used_flag_ptr
= 1;
2451 /* Certain prefixes are tried with just the machine type,
2452 not the version. This is used for finding as, ld, etc. */
2453 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2455 /* Some systems have a suffix for executable files.
2456 So try appending that first. */
2457 if (file_suffix
[0] != 0)
2459 strcpy (temp
, pl
->prefix
);
2460 strcat (temp
, just_machine_suffix
);
2461 strcat (temp
, multilib_name
);
2462 strcat (temp
, file_suffix
);
2463 if (access_check (temp
, mode
) == 0)
2465 if (pl
->used_flag_ptr
!= 0)
2466 *pl
->used_flag_ptr
= 1;
2471 strcpy (temp
, pl
->prefix
);
2472 strcat (temp
, just_machine_suffix
);
2473 strcat (temp
, multilib_name
);
2474 if (access_check (temp
, mode
) == 0)
2476 if (pl
->used_flag_ptr
!= 0)
2477 *pl
->used_flag_ptr
= 1;
2482 /* Certain prefixes can't be used without the machine suffix
2483 when the machine or version is explicitly specified. */
2484 if (! pl
->require_machine_suffix
)
2486 /* Some systems have a suffix for executable files.
2487 So try appending that first. */
2488 if (file_suffix
[0] != 0)
2490 strcpy (temp
, pl
->prefix
);
2491 strcat (temp
, this_name
);
2492 strcat (temp
, file_suffix
);
2493 if (access_check (temp
, mode
) == 0)
2495 if (pl
->used_flag_ptr
!= 0)
2496 *pl
->used_flag_ptr
= 1;
2501 strcpy (temp
, pl
->prefix
);
2502 strcat (temp
, this_name
);
2503 if (access_check (temp
, mode
) == 0)
2505 if (pl
->used_flag_ptr
!= 0)
2506 *pl
->used_flag_ptr
= 1;
2516 /* Ranking of prefixes in the sort list. -B prefixes are put before
2519 enum path_prefix_priority
2521 PREFIX_PRIORITY_B_OPT
,
2522 PREFIX_PRIORITY_LAST
2525 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2526 order according to PRIORITY. Within each PRIORITY, new entries are
2529 If WARN is nonzero, we will warn if no file is found
2530 through this prefix. WARN should point to an int
2531 which will be set to 1 if this entry is used.
2533 COMPONENT is the value to be passed to update_path.
2535 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2536 the complete value of machine_suffix.
2537 2 means try both machine_suffix and just_machine_suffix. */
2540 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2541 const char *component
, /* enum prefix_priority */ int priority
,
2542 int require_machine_suffix
, int *warn
, int os_multilib
)
2544 struct prefix_list
*pl
, **prev
;
2547 for (prev
= &pprefix
->plist
;
2548 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2549 prev
= &(*prev
)->next
)
2552 /* Keep track of the longest prefix. */
2554 prefix
= update_path (prefix
, component
);
2555 len
= strlen (prefix
);
2556 if (len
> pprefix
->max_len
)
2557 pprefix
->max_len
= len
;
2559 pl
= xmalloc (sizeof (struct prefix_list
));
2560 pl
->prefix
= prefix
;
2561 pl
->require_machine_suffix
= require_machine_suffix
;
2562 pl
->used_flag_ptr
= warn
;
2563 pl
->priority
= priority
;
2564 pl
->os_multilib
= os_multilib
;
2568 /* Insert after PREV. */
2573 /* Same as add_prefix, but prepending target_system_root to prefix. */
2575 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2576 const char *component
,
2577 /* enum prefix_priority */ int priority
,
2578 int require_machine_suffix
, int *warn
, int os_multilib
)
2580 if (!IS_ABSOLUTE_PATH (prefix
))
2583 if (target_system_root
)
2585 if (target_sysroot_suffix
)
2586 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2587 prefix
= concat (target_system_root
, prefix
, NULL
);
2589 /* We have to override this because GCC's notion of sysroot
2590 moves along with GCC. */
2594 add_prefix (pprefix
, prefix
, component
, priority
,
2595 require_machine_suffix
, warn
, os_multilib
);
2598 /* Execute the command specified by the arguments on the current line of spec.
2599 When using pipes, this includes several piped-together commands
2600 with `|' between them.
2602 Return 0 if successful, -1 if failed. */
2608 int n_commands
; /* # of command. */
2612 const char *prog
; /* program name. */
2613 const char **argv
; /* vector of args. */
2614 int pid
; /* pid of process for this command. */
2617 struct command
*commands
; /* each command buffer with above info. */
2619 if (processing_spec_function
)
2622 /* Count # of piped commands. */
2623 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2624 if (strcmp (argbuf
[i
], "|") == 0)
2627 /* Get storage for each command. */
2628 commands
= alloca (n_commands
* sizeof (struct command
));
2630 /* Split argbuf into its separate piped processes,
2631 and record info about each one.
2632 Also search for the programs that are to be run. */
2634 commands
[0].prog
= argbuf
[0]; /* first command. */
2635 commands
[0].argv
= &argbuf
[0];
2636 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2639 commands
[0].argv
[0] = string
;
2641 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2642 if (strcmp (argbuf
[i
], "|") == 0)
2643 { /* each command. */
2644 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2645 fatal ("-pipe not supported");
2647 argbuf
[i
] = 0; /* termination of command args. */
2648 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2649 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2650 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2653 commands
[n_commands
].argv
[0] = string
;
2657 argbuf
[argbuf_index
] = 0;
2659 /* If -v, print what we are about to do, and maybe query. */
2663 /* For help listings, put a blank line between sub-processes. */
2664 if (print_help_list
)
2665 fputc ('\n', stderr
);
2667 /* Print each piped command as a separate line. */
2668 for (i
= 0; i
< n_commands
; i
++)
2670 const char *const *j
;
2672 if (verbose_only_flag
)
2674 for (j
= commands
[i
].argv
; *j
; j
++)
2677 fprintf (stderr
, " \"");
2678 for (p
= *j
; *p
; ++p
)
2680 if (*p
== '"' || *p
== '\\' || *p
== '$')
2681 fputc ('\\', stderr
);
2684 fputc ('"', stderr
);
2688 for (j
= commands
[i
].argv
; *j
; j
++)
2689 fprintf (stderr
, " %s", *j
);
2691 /* Print a pipe symbol after all but the last command. */
2692 if (i
+ 1 != n_commands
)
2693 fprintf (stderr
, " |");
2694 fprintf (stderr
, "\n");
2697 if (verbose_only_flag
!= 0)
2700 notice ("\nGo ahead? (y or n) ");
2704 while (getchar () != '\n')
2707 if (i
!= 'y' && i
!= 'Y')
2712 #ifdef ENABLE_VALGRIND_CHECKING
2713 /* Run the each command through valgrind. To simplify prepending the
2714 path to valgrind and the option "-q" (for quiet operation unless
2715 something triggers), we allocate a separate argv array. */
2717 for (i
= 0; i
< n_commands
; i
++)
2723 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2726 argv
= alloca ((argc
+ 3) * sizeof (char *));
2728 argv
[0] = VALGRIND_PATH
;
2730 for (j
= 2; j
< argc
+ 2; j
++)
2731 argv
[j
] = commands
[i
].argv
[j
- 2];
2734 commands
[i
].argv
= argv
;
2735 commands
[i
].prog
= argv
[0];
2739 /* Run each piped subprocess. */
2741 for (i
= 0; i
< n_commands
; i
++)
2743 char *errmsg_fmt
, *errmsg_arg
;
2744 const char *string
= commands
[i
].argv
[0];
2746 /* For some bizarre reason, the second argument of execvp() is
2747 char *const *, not const char *const *. */
2748 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2749 programname
, temp_filename
,
2750 &errmsg_fmt
, &errmsg_arg
,
2751 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2752 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2753 | (string
== commands
[i
].prog
2754 ? PEXECUTE_SEARCH
: 0)
2755 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2757 if (commands
[i
].pid
== -1)
2758 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2760 if (string
!= commands
[i
].prog
)
2761 free ((void *) string
);
2766 /* Wait for all the subprocesses to finish.
2767 We don't care what order they finish in;
2768 we know that N_COMMANDS waits will get them all.
2769 Ignore subprocesses that we don't know about,
2770 since they can be spawned by the process that exec'ed us. */
2774 #ifdef HAVE_GETRUSAGE
2776 double ut
= 0.0, st
= 0.0;
2779 for (i
= 0; i
< n_commands
;)
2785 pid
= pwait (commands
[i
].pid
, &status
, 0);
2789 #ifdef HAVE_GETRUSAGE
2792 /* getrusage returns the total resource usage of all children
2793 up to now. Copy the previous values into prus, get the
2794 current statistics, then take the difference. */
2797 getrusage (RUSAGE_CHILDREN
, &rus
);
2798 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2799 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2800 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2802 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2803 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2804 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2808 for (j
= 0; j
< n_commands
; j
++)
2809 if (commands
[j
].pid
== pid
)
2812 if (WIFSIGNALED (status
))
2815 /* SIGPIPE is a special case. It happens in -pipe mode
2816 when the compiler dies before the preprocessor is
2817 done, or the assembler dies before the compiler is
2818 done. There's generally been an error already, and
2819 this is just fallout. So don't generate another error
2820 unless we would otherwise have succeeded. */
2821 if (WTERMSIG (status
) == SIGPIPE
2822 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2827 Internal error: %s (program %s)\n\
2828 Please submit a full bug report.\n\
2829 See %s for instructions.",
2830 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2835 else if (WIFEXITED (status
)
2836 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2838 if (WEXITSTATUS (status
) > greatest_status
)
2839 greatest_status
= WEXITSTATUS (status
);
2842 #ifdef HAVE_GETRUSAGE
2843 if (report_times
&& ut
+ st
!= 0)
2844 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2853 /* Find all the switches given to us
2854 and make a vector describing them.
2855 The elements of the vector are strings, one per switch given.
2856 If a switch uses following arguments, then the `part1' field
2857 is the switch itself and the `args' field
2858 is a null-terminated vector containing the following arguments.
2859 The `live_cond' field is:
2861 1 if the switch is true in a conditional spec,
2862 -1 if false (overridden by a later switch)
2863 -2 if this switch should be ignored (used in %<S)
2864 The `validated' field is nonzero if any spec has looked at this switch;
2865 if it remains zero at the end of the run, it must be meaningless. */
2868 #define SWITCH_FALSE -1
2869 #define SWITCH_IGNORE -2
2870 #define SWITCH_LIVE 1
2877 unsigned char validated
;
2878 unsigned char ordering
;
2881 static struct switchstr
*switches
;
2883 static int n_switches
;
2888 const char *language
;
2891 /* Also a vector of input files specified. */
2893 static struct infile
*infiles
;
2897 /* True if multiple input files are being compiled to a single
2900 static bool combine_inputs
;
2902 /* This counts the number of libraries added by lang_specific_driver, so that
2903 we can tell if there were any user supplied any files or libraries. */
2905 static int added_libraries
;
2907 /* And a vector of corresponding output files is made up later. */
2909 const char **outfiles
;
2911 /* Used to track if none of the -B paths are used. */
2914 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2915 static int *warn_std_ptr
= 0;
2917 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2919 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2920 is true if we should look for an executable suffix. DO_OBJ
2921 is true if we should look for an object suffix. */
2924 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2925 int do_obj ATTRIBUTE_UNUSED
)
2927 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2935 len
= strlen (name
);
2937 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2938 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2939 if (do_obj
&& len
> 2
2940 && name
[len
- 2] == '.'
2941 && name
[len
- 1] == 'o')
2943 obstack_grow (&obstack
, name
, len
- 2);
2944 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2945 name
= obstack_finish (&obstack
);
2949 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2950 /* If there is no filetype, make it the executable suffix (which includes
2951 the "."). But don't get confused if we have just "-o". */
2952 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2955 for (i
= len
- 1; i
>= 0; i
--)
2956 if (IS_DIR_SEPARATOR (name
[i
]))
2959 for (i
++; i
< len
; i
++)
2963 obstack_grow (&obstack
, name
, len
);
2964 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2965 strlen (TARGET_EXECUTABLE_SUFFIX
));
2966 name
= obstack_finish (&obstack
);
2973 /* Display the command line switches accepted by gcc. */
2977 printf (_("Usage: %s [options] file...\n"), programname
);
2978 fputs (_("Options:\n"), stdout
);
2980 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2981 fputs (_(" --help Display this information\n"), stdout
);
2982 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2984 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2985 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2986 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2987 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2988 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2989 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2990 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2991 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2992 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2994 -print-multi-lib Display the mapping between command line options and\n\
2995 multiple library search directories\n"), stdout
);
2996 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2997 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2998 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2999 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3000 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3001 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3002 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3003 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3004 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3005 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3006 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3007 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3008 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3009 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3010 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3011 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3012 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3013 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3014 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3015 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3016 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3018 -x <language> Specify the language of the following input files\n\
3019 Permissible languages include: c c++ assembler none\n\
3020 'none' means revert to the default behavior of\n\
3021 guessing the language based on the file's extension\n\
3025 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3026 passed on to the various sub-processes invoked by %s. In order to pass\n\
3027 other options on to these processes the -W<letter> options must be used.\n\
3030 /* The rest of the options are displayed by invocations of the various
3035 add_preprocessor_option (const char *option
, int len
)
3037 n_preprocessor_options
++;
3039 if (! preprocessor_options
)
3040 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3042 preprocessor_options
= xrealloc (preprocessor_options
,
3043 n_preprocessor_options
* sizeof (char *));
3045 preprocessor_options
[n_preprocessor_options
- 1] =
3046 save_string (option
, len
);
3050 add_assembler_option (const char *option
, int len
)
3052 n_assembler_options
++;
3054 if (! assembler_options
)
3055 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3057 assembler_options
= xrealloc (assembler_options
,
3058 n_assembler_options
* sizeof (char *));
3060 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3064 add_linker_option (const char *option
, int len
)
3068 if (! linker_options
)
3069 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3071 linker_options
= xrealloc (linker_options
,
3072 n_linker_options
* sizeof (char *));
3074 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3077 /* Create the vector `switches' and its contents.
3078 Store its length in `n_switches'. */
3081 process_command (int argc
, const char *const *argv
)
3086 const char *spec_lang
= 0;
3087 int last_language_n_infiles
;
3090 int lang_n_infiles
= 0;
3091 #ifdef MODIFY_TARGET_NAME
3092 int is_modify_target_name
;
3096 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3100 added_libraries
= 0;
3102 /* Figure compiler version from version string. */
3104 compiler_version
= temp1
= xstrdup (version_string
);
3106 for (; *temp1
; ++temp1
)
3115 /* If there is a -V or -b option (or both), process it now, before
3116 trying to interpret the rest of the command line. */
3117 if (argc
> 1 && argv
[1][0] == '-'
3118 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3120 const char *new_version
= DEFAULT_TARGET_VERSION
;
3121 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3122 const char *progname
= argv
[0];
3127 while (argc
> 1 && argv
[1][0] == '-'
3128 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3130 char opt
= argv
[1][1];
3132 if (argv
[1][2] != '\0')
3145 fatal ("`-%c' option must have argument", opt
);
3152 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3153 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3155 new_argv0
= xmemdup (progname
, baselen
,
3156 baselen
+ concat_length (new_version
, new_machine
,
3157 "-gcc-", NULL
) + 1);
3158 strcpy (new_argv0
+ baselen
, new_machine
);
3159 strcat (new_argv0
, "-gcc-");
3160 strcat (new_argv0
, new_version
);
3162 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3163 (argc
+ 1) * sizeof (argv
[0]));
3164 new_argv
[0] = new_argv0
;
3166 execvp (new_argv0
, new_argv
);
3167 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3170 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3171 see if we can create it from the pathname specified in argv[0]. */
3173 gcc_libexec_prefix
= standard_libexec_prefix
;
3175 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3176 if (!gcc_exec_prefix
)
3178 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3179 standard_exec_prefix
);
3180 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3181 standard_bindir_prefix
,
3182 standard_libexec_prefix
);
3183 if (gcc_exec_prefix
)
3184 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3187 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3188 standard_exec_prefix
,
3189 standard_libexec_prefix
);
3193 if (gcc_exec_prefix
)
3195 int len
= strlen (gcc_exec_prefix
);
3197 if (len
> (int) sizeof ("/lib/gcc/") - 1
3198 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3200 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3201 if (IS_DIR_SEPARATOR (*temp
)
3202 && strncmp (temp
+ 1, "lib", 3) == 0
3203 && IS_DIR_SEPARATOR (temp
[4])
3204 && strncmp (temp
+ 5, "gcc", 7) == 0)
3205 len
-= sizeof ("/lib/gcc/") - 1;
3208 set_std_prefix (gcc_exec_prefix
, len
);
3209 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3210 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3211 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3212 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3215 /* COMPILER_PATH and LIBRARY_PATH have values
3216 that are lists of directory names with colons. */
3218 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3221 const char *startp
, *endp
;
3222 char *nstore
= alloca (strlen (temp
) + 3);
3224 startp
= endp
= temp
;
3227 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3229 strncpy (nstore
, startp
, endp
- startp
);
3231 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3232 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3234 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3235 nstore
[endp
- startp
+ 1] = 0;
3238 nstore
[endp
- startp
] = 0;
3239 add_prefix (&exec_prefixes
, nstore
, 0,
3240 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3241 add_prefix (&include_prefixes
,
3242 concat (nstore
, "include", NULL
),
3243 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3246 endp
= startp
= endp
+ 1;
3253 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3254 if (temp
&& *cross_compile
== '0')
3256 const char *startp
, *endp
;
3257 char *nstore
= alloca (strlen (temp
) + 3);
3259 startp
= endp
= temp
;
3262 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3264 strncpy (nstore
, startp
, endp
- startp
);
3266 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3267 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3269 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3270 nstore
[endp
- startp
+ 1] = 0;
3273 nstore
[endp
- startp
] = 0;
3274 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3275 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3278 endp
= startp
= endp
+ 1;
3285 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3286 GET_ENVIRONMENT (temp
, "LPATH");
3287 if (temp
&& *cross_compile
== '0')
3289 const char *startp
, *endp
;
3290 char *nstore
= alloca (strlen (temp
) + 3);
3292 startp
= endp
= temp
;
3295 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3297 strncpy (nstore
, startp
, endp
- startp
);
3299 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3300 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3302 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3303 nstore
[endp
- startp
+ 1] = 0;
3306 nstore
[endp
- startp
] = 0;
3307 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3308 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3311 endp
= startp
= endp
+ 1;
3318 /* Convert new-style -- options to old-style. */
3319 translate_options (&argc
, &argv
);
3321 /* Do language-specific adjustment/addition of flags. */
3322 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3324 /* Scan argv twice. Here, the first time, just count how many switches
3325 there will be in their vector, and how many input files in theirs.
3326 Here we also parse the switches that cc itself uses (e.g. -v). */
3328 for (i
= 1; i
< argc
; i
++)
3330 if (! strcmp (argv
[i
], "-dumpspecs"))
3332 struct spec_list
*sl
;
3334 for (sl
= specs
; sl
; sl
= sl
->next
)
3335 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3336 if (link_command_spec
)
3337 printf ("*link_command:\n%s\n\n", link_command_spec
);
3340 else if (! strcmp (argv
[i
], "-dumpversion"))
3342 printf ("%s\n", spec_version
);
3345 else if (! strcmp (argv
[i
], "-dumpmachine"))
3347 printf ("%s\n", spec_machine
);
3350 else if (strcmp (argv
[i
], "-fversion") == 0)
3352 /* translate_options () has turned --version into -fversion. */
3353 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3354 fputs (_("Copyright (C) 2003 Free Software Foundation, Inc.\n"),
3356 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3357 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3361 else if (strcmp (argv
[i
], "-fhelp") == 0)
3363 /* translate_options () has turned --help into -fhelp. */
3364 print_help_list
= 1;
3366 /* We will be passing a dummy file on to the sub-processes. */
3370 /* CPP driver cannot obtain switch from cc1_options. */
3372 add_preprocessor_option ("--help", 6);
3373 add_assembler_option ("--help", 6);
3374 add_linker_option ("--help", 6);
3376 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3378 /* translate_options() has turned --target-help into -ftarget-help. */
3379 target_help_flag
= 1;
3381 /* We will be passing a dummy file on to the sub-processes. */
3385 /* CPP driver cannot obtain switch from cc1_options. */
3387 add_preprocessor_option ("--target-help", 13);
3388 add_assembler_option ("--target-help", 13);
3389 add_linker_option ("--target-help", 13);
3391 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3393 pass_exit_codes
= 1;
3396 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3397 print_search_dirs
= 1;
3398 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3399 print_file_name
= "libgcc.a";
3400 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3401 print_file_name
= argv
[i
] + 17;
3402 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3403 print_prog_name
= argv
[i
] + 17;
3404 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3405 print_multi_lib
= 1;
3406 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3407 print_multi_directory
= 1;
3408 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3409 print_multi_os_directory
= 1;
3410 else if (! strncmp (argv
[i
], "-Wa,", 4))
3413 /* Pass the rest of this option to the assembler. */
3415 /* Split the argument at commas. */
3417 for (j
= 4; argv
[i
][j
]; j
++)
3418 if (argv
[i
][j
] == ',')
3420 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3424 /* Record the part after the last comma. */
3425 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3427 else if (! strncmp (argv
[i
], "-Wp,", 4))
3430 /* Pass the rest of this option to the preprocessor. */
3432 /* Split the argument at commas. */
3434 for (j
= 4; argv
[i
][j
]; j
++)
3435 if (argv
[i
][j
] == ',')
3437 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3441 /* Record the part after the last comma. */
3442 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3444 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3445 /* The +e options to the C++ front-end. */
3447 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3450 /* Split the argument at commas. */
3451 for (j
= 3; argv
[i
][j
]; j
++)
3452 n_infiles
+= (argv
[i
][j
] == ',');
3454 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3457 fatal ("argument to `-Xlinker' is missing");
3462 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3465 fatal ("argument to `-Xpreprocessor' is missing");
3467 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3469 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3472 fatal ("argument to `-Xassembler' is missing");
3474 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3476 else if (strcmp (argv
[i
], "-l") == 0)
3479 fatal ("argument to `-l' is missing");
3484 else if (strncmp (argv
[i
], "-l", 2) == 0)
3486 else if (strcmp (argv
[i
], "-save-temps") == 0)
3488 save_temps_flag
= 1;
3491 else if (strcmp (argv
[i
], "-specs") == 0)
3493 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3495 fatal ("argument to `-specs' is missing");
3497 user
->next
= (struct user_specs
*) 0;
3498 user
->filename
= argv
[i
];
3499 if (user_specs_tail
)
3500 user_specs_tail
->next
= user
;
3502 user_specs_head
= user
;
3503 user_specs_tail
= user
;
3505 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3507 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3508 if (strlen (argv
[i
]) == 7)
3509 fatal ("argument to `-specs=' is missing");
3511 user
->next
= (struct user_specs
*) 0;
3512 user
->filename
= argv
[i
] + 7;
3513 if (user_specs_tail
)
3514 user_specs_tail
->next
= user
;
3516 user_specs_head
= user
;
3517 user_specs_tail
= user
;
3519 else if (strcmp (argv
[i
], "-time") == 0)
3521 else if (strcmp (argv
[i
], "-pipe") == 0)
3523 /* -pipe has to go into the switches array as well as
3528 else if (strcmp (argv
[i
], "-###") == 0)
3530 /* This is similar to -v except that there is no execution
3531 of the commands and the echoed arguments are quoted. It
3532 is intended for use in shell scripts to capture the
3533 driver-generated command line. */
3534 verbose_only_flag
++;
3537 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3539 const char *p
= &argv
[i
][1];
3546 fatal ("`-%c' must come at the start of the command line", c
);
3554 if (p
[1] == 0 && i
+ 1 == argc
)
3555 fatal ("argument to `-B' is missing");
3561 len
= strlen (value
);
3563 /* Catch the case where the user has forgotten to append a
3564 directory separator to the path. Note, they may be using
3565 -B to add an executable name prefix, eg "i386-elf-", in
3566 order to distinguish between multiple installations of
3567 GCC in the same directory. Hence we must check to see
3568 if appending a directory separator actually makes a
3569 valid directory name. */
3570 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3571 && is_directory (value
, "", 0))
3573 char *tmp
= xmalloc (len
+ 2);
3574 strcpy (tmp
, value
);
3575 tmp
[len
] = DIR_SEPARATOR
;
3580 /* As a kludge, if the arg is "[foo/]stageN/", just
3581 add "[foo/]include" to the include prefix. */
3584 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3585 && strncmp (value
+ len
- 7, "stage", 5) == 0
3586 && ISDIGIT (value
[len
- 2])
3587 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3590 add_prefix (&include_prefixes
, "include", NULL
,
3591 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3594 char * string
= xmalloc (len
+ 1);
3596 strncpy (string
, value
, len
- 7);
3597 strcpy (string
+ len
- 7, "include");
3598 add_prefix (&include_prefixes
, string
, NULL
,
3599 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3603 add_prefix (&exec_prefixes
, value
, NULL
,
3604 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3605 add_prefix (&startfile_prefixes
, value
, NULL
,
3606 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3607 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3608 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3613 case 'v': /* Print our subcommands and print versions. */
3615 /* If they do anything other than exactly `-v', don't set
3616 verbose_flag; rather, continue on to give the error. */
3634 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3639 /* Forward scan, just in case -S or -c is specified
3646 if (argv
[j
][0] == '-')
3648 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3654 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3655 j
+= skip
- (argv
[j
][2] != 0);
3656 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3663 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3665 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3667 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3674 #ifdef MODIFY_TARGET_NAME
3675 is_modify_target_name
= 0;
3677 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3678 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3680 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3681 + strlen (spec_machine
));
3684 int made_addition
= 0;
3686 is_modify_target_name
= 1;
3687 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3689 if (modify_target
[j
].add_del
== DELETE
3690 && (! strncmp (q
, modify_target
[j
].str
,
3691 strlen (modify_target
[j
].str
))))
3692 p
+= strlen (modify_target
[j
].str
);
3693 else if (modify_target
[j
].add_del
== ADD
3694 && ! made_addition
&& *p
== '-')
3696 for (r
= modify_target
[j
].str
; *r
!= 0; )
3704 spec_machine
= new_name
;
3707 if (is_modify_target_name
)
3713 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3714 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3715 else if (WORD_SWITCH_TAKES_ARG (p
))
3716 i
+= WORD_SWITCH_TAKES_ARG (p
);
3726 combine_inputs
= (have_c
&& have_o
&& lang_n_infiles
> 1);
3728 if ((save_temps_flag
|| report_times
) && use_pipes
)
3730 /* -save-temps overrides -pipe, so that temp files are produced */
3731 if (save_temps_flag
)
3732 error ("warning: -pipe ignored because -save-temps specified");
3733 /* -time overrides -pipe because we can't get correct stats when
3734 multiple children are running at once. */
3735 else if (report_times
)
3736 error ("warning: -pipe ignored because -time specified");
3741 /* Set up the search paths before we go looking for config files. */
3743 /* These come before the md prefixes so that we will find gcc's subcommands
3744 (such as cpp) rather than those of the host system. */
3745 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3746 as well as trying the machine and the version. */
3748 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3749 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3750 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3751 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3752 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3753 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3754 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3755 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3756 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3757 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3760 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3761 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3762 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3763 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3765 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3766 dir_separator_str
, NULL
);
3768 /* If tooldir is relative, base it on exec_prefixes. A relative
3769 tooldir lets us move the installed tree as a unit.
3771 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3772 directories, so that we can search both the user specified directory
3773 and the standard place. */
3775 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3777 if (gcc_exec_prefix
)
3779 char *gcc_exec_tooldir_prefix
3780 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3781 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3783 add_prefix (&exec_prefixes
,
3784 concat (gcc_exec_tooldir_prefix
, "bin",
3785 dir_separator_str
, NULL
),
3786 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3787 add_prefix (&startfile_prefixes
,
3788 concat (gcc_exec_tooldir_prefix
, "lib",
3789 dir_separator_str
, NULL
),
3790 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3793 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3794 dir_separator_str
, spec_version
,
3795 dir_separator_str
, tooldir_prefix
, NULL
);
3798 add_prefix (&exec_prefixes
,
3799 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3800 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3801 add_prefix (&startfile_prefixes
,
3802 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3803 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3805 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3806 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3807 then consider it to relocate with the rest of the GCC installation
3808 if GCC_EXEC_PREFIX is set.
3809 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3810 if (target_system_root
&& gcc_exec_prefix
)
3812 char *tmp_prefix
= make_relative_prefix (argv
[0],
3813 standard_bindir_prefix
,
3814 target_system_root
);
3815 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3817 target_system_root
= tmp_prefix
;
3818 target_system_root_changed
= 1;
3823 /* More prefixes are enabled in main, after we read the specs file
3824 and determine whether this is cross-compilation or not. */
3826 /* Then create the space for the vectors and scan again. */
3828 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3829 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3832 last_language_n_infiles
= -1;
3834 /* This, time, copy the text of each switch and store a pointer
3835 to the copy in the vector of switches.
3836 Store all the infiles in their vector. */
3838 for (i
= 1; i
< argc
; i
++)
3840 /* Just skip the switches that were handled by the preceding loop. */
3841 #ifdef MODIFY_TARGET_NAME
3842 is_modify_target_name
= 0;
3844 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3845 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3846 is_modify_target_name
= 1;
3848 if (is_modify_target_name
)
3852 if (! strncmp (argv
[i
], "-Wa,", 4))
3854 else if (! strncmp (argv
[i
], "-Wp,", 4))
3856 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3858 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3860 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3862 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3864 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3866 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3868 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3870 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3872 else if (! strcmp (argv
[i
], "-ftarget-help"))
3874 else if (! strcmp (argv
[i
], "-fhelp"))
3876 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3878 /* Compensate for the +e options to the C++ front-end;
3879 they're there simply for cfront call-compatibility. We do
3880 some magic in default_compilers to pass them down properly.
3881 Note we deliberately start at the `+' here, to avoid passing
3882 -e0 or -e1 down into the linker. */
3883 switches
[n_switches
].part1
= &argv
[i
][0];
3884 switches
[n_switches
].args
= 0;
3885 switches
[n_switches
].live_cond
= SWITCH_OK
;
3886 switches
[n_switches
].validated
= 0;
3889 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3892 /* Split the argument at commas. */
3894 for (j
= 4; argv
[i
][j
]; j
++)
3895 if (argv
[i
][j
] == ',')
3897 infiles
[n_infiles
].language
= "*";
3898 infiles
[n_infiles
++].name
3899 = save_string (argv
[i
] + prev
, j
- prev
);
3902 /* Record the part after the last comma. */
3903 infiles
[n_infiles
].language
= "*";
3904 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3906 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3908 infiles
[n_infiles
].language
= "*";
3909 infiles
[n_infiles
++].name
= argv
[++i
];
3911 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3913 infiles
[n_infiles
].language
= "*";
3914 infiles
[n_infiles
++].name
= argv
[++i
];
3916 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3918 infiles
[n_infiles
].language
= "*";
3919 infiles
[n_infiles
++].name
= argv
[++i
];
3921 else if (strcmp (argv
[i
], "-l") == 0)
3922 { /* POSIX allows separation of -l and the lib arg;
3923 canonicalize by concatenating -l with its arg */
3924 infiles
[n_infiles
].language
= "*";
3925 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3927 else if (strncmp (argv
[i
], "-l", 2) == 0)
3929 infiles
[n_infiles
].language
= "*";
3930 infiles
[n_infiles
++].name
= argv
[i
];
3932 else if (strcmp (argv
[i
], "-specs") == 0)
3934 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3936 else if (strcmp (argv
[i
], "-time") == 0)
3938 else if (strcmp (argv
[i
], "-###") == 0)
3940 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3942 const char *p
= &argv
[i
][1];
3947 if (p
[1] == 0 && i
+ 1 == argc
)
3948 fatal ("argument to `-x' is missing");
3950 spec_lang
= argv
[++i
];
3953 if (! strcmp (spec_lang
, "none"))
3954 /* Suppress the warning if -xnone comes after the last input
3955 file, because alternate command interfaces like g++ might
3956 find it useful to place -xnone after each input file. */
3959 last_language_n_infiles
= n_infiles
;
3962 switches
[n_switches
].part1
= p
;
3963 /* Deal with option arguments in separate argv elements. */
3964 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3965 || WORD_SWITCH_TAKES_ARG (p
))
3968 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3972 /* Count only the option arguments in separate argv elements. */
3973 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3975 if (i
+ n_args
>= argc
)
3976 fatal ("argument to `-%s' is missing", p
);
3977 switches
[n_switches
].args
3978 = xmalloc ((n_args
+ 1) * sizeof(const char *));
3980 switches
[n_switches
].args
[j
++] = argv
[++i
];
3981 /* Null-terminate the vector. */
3982 switches
[n_switches
].args
[j
] = 0;
3984 else if (strchr (switches_need_spaces
, c
))
3986 /* On some systems, ld cannot handle some options without
3987 a space. So split the option from its argument. */
3988 char *part1
= xmalloc (2);
3992 switches
[n_switches
].part1
= part1
;
3993 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
3994 switches
[n_switches
].args
[0] = xstrdup (p
+1);
3995 switches
[n_switches
].args
[1] = 0;
3998 switches
[n_switches
].args
= 0;
4000 switches
[n_switches
].live_cond
= SWITCH_OK
;
4001 switches
[n_switches
].validated
= 0;
4002 switches
[n_switches
].ordering
= 0;
4003 /* These are always valid, since gcc.c itself understands them. */
4004 if (!strcmp (p
, "save-temps")
4005 || !strcmp (p
, "static-libgcc")
4006 || !strcmp (p
, "shared-libgcc")
4007 || !strcmp (p
, "pipe"))
4008 switches
[n_switches
].validated
= 1;
4011 char ch
= switches
[n_switches
].part1
[0];
4013 switches
[n_switches
].validated
= 1;
4019 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4020 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4023 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4025 perror_with_name (argv
[i
]);
4030 infiles
[n_infiles
].language
= spec_lang
;
4031 infiles
[n_infiles
++].name
= argv
[i
];
4036 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4037 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4039 /* Ensure we only invoke each subprocess once. */
4040 if (target_help_flag
|| print_help_list
)
4044 /* Create a dummy input file, so that we can pass --target-help on to
4045 the various sub-processes. */
4046 infiles
[0].language
= "c";
4047 infiles
[0].name
= "help-dummy";
4049 if (target_help_flag
)
4051 switches
[n_switches
].part1
= "--target-help";
4052 switches
[n_switches
].args
= 0;
4053 switches
[n_switches
].live_cond
= SWITCH_OK
;
4054 switches
[n_switches
].validated
= 0;
4059 if (print_help_list
)
4061 switches
[n_switches
].part1
= "--help";
4062 switches
[n_switches
].args
= 0;
4063 switches
[n_switches
].live_cond
= SWITCH_OK
;
4064 switches
[n_switches
].validated
= 0;
4070 switches
[n_switches
].part1
= 0;
4071 infiles
[n_infiles
].name
= 0;
4074 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4075 and place that in the environment. */
4078 set_collect_gcc_options (void)
4083 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4085 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4086 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4089 for (i
= 0; (int) i
< n_switches
; i
++)
4091 const char *const *args
;
4094 obstack_grow (&collect_obstack
, " ", 1);
4098 /* Ignore elided switches. */
4099 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4102 obstack_grow (&collect_obstack
, "'-", 2);
4103 q
= switches
[i
].part1
;
4104 while ((p
= strchr (q
, '\'')))
4106 obstack_grow (&collect_obstack
, q
, p
- q
);
4107 obstack_grow (&collect_obstack
, "'\\''", 4);
4110 obstack_grow (&collect_obstack
, q
, strlen (q
));
4111 obstack_grow (&collect_obstack
, "'", 1);
4113 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4115 obstack_grow (&collect_obstack
, " '", 2);
4117 while ((p
= strchr (q
, '\'')))
4119 obstack_grow (&collect_obstack
, q
, p
- q
);
4120 obstack_grow (&collect_obstack
, "'\\''", 4);
4123 obstack_grow (&collect_obstack
, q
, strlen (q
));
4124 obstack_grow (&collect_obstack
, "'", 1);
4127 obstack_grow (&collect_obstack
, "\0", 1);
4128 putenv (obstack_finish (&collect_obstack
));
4131 /* Process a spec string, accumulating and running commands. */
4133 /* These variables describe the input file name.
4134 input_file_number is the index on outfiles of this file,
4135 so that the output file name can be stored for later use by %o.
4136 input_basename is the start of the part of the input file
4137 sans all directory names, and basename_length is the number
4138 of characters starting there excluding the suffix .c or whatever. */
4140 static const char *input_filename
;
4141 static int input_file_number
;
4142 size_t input_filename_length
;
4143 static int basename_length
;
4144 static int suffixed_basename_length
;
4145 static const char *input_basename
;
4146 static const char *input_suffix
;
4147 static struct stat input_stat
;
4148 static int input_stat_set
;
4150 /* The compiler used to process the current input file. */
4151 static struct compiler
*input_file_compiler
;
4153 /* These are variables used within do_spec and do_spec_1. */
4155 /* Nonzero if an arg has been started and not yet terminated
4156 (with space, tab or newline). */
4157 static int arg_going
;
4159 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4160 is a temporary file name. */
4161 static int delete_this_arg
;
4163 /* Nonzero means %w has been seen; the next arg to be terminated
4164 is the output file name of this compilation. */
4165 static int this_is_output_file
;
4167 /* Nonzero means %s has been seen; the next arg to be terminated
4168 is the name of a library file and we should try the standard
4169 search dirs for it. */
4170 static int this_is_library_file
;
4172 /* Nonzero means that the input of this command is coming from a pipe. */
4173 static int input_from_pipe
;
4175 /* Nonnull means substitute this for any suffix when outputting a switches
4177 static const char *suffix_subst
;
4179 /* Process the spec SPEC and run the commands specified therein.
4180 Returns 0 if the spec is successfully processed; -1 if failed. */
4183 do_spec (const char *spec
)
4187 value
= do_spec_2 (spec
);
4189 /* Force out any unfinished command.
4190 If -pipe, this forces out the last command if it ended in `|'. */
4193 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4196 set_collect_gcc_options ();
4198 if (argbuf_index
> 0)
4206 do_spec_2 (const char *spec
)
4213 delete_this_arg
= 0;
4214 this_is_output_file
= 0;
4215 this_is_library_file
= 0;
4216 input_from_pipe
= 0;
4217 suffix_subst
= NULL
;
4219 result
= do_spec_1 (spec
, 0, NULL
);
4221 /* End any pending argument. */
4224 obstack_1grow (&obstack
, 0);
4225 string
= obstack_finish (&obstack
);
4226 if (this_is_library_file
)
4227 string
= find_file (string
);
4228 store_arg (string
, delete_this_arg
, this_is_output_file
);
4229 if (this_is_output_file
)
4230 outfiles
[input_file_number
] = string
;
4238 /* Process the given spec string and add any new options to the end
4239 of the switches/n_switches array. */
4242 do_option_spec (const char *name
, const char *spec
)
4244 unsigned int i
, value_count
, value_len
;
4245 const char *p
, *q
, *value
;
4246 char *tmp_spec
, *tmp_spec_p
;
4248 if (configure_default_options
[0].name
== NULL
)
4251 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4252 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4254 if (i
== ARRAY_SIZE (configure_default_options
))
4257 value
= configure_default_options
[i
].value
;
4258 value_len
= strlen (value
);
4260 /* Compute the size of the final spec. */
4263 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4269 /* Replace each %(VALUE) by the specified value. */
4270 tmp_spec
= alloca (strlen (spec
) + 1
4271 + value_count
* (value_len
- strlen ("%(VALUE)")));
4272 tmp_spec_p
= tmp_spec
;
4274 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4276 memcpy (tmp_spec_p
, q
, p
- q
);
4277 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4278 memcpy (tmp_spec_p
, value
, value_len
);
4279 tmp_spec_p
+= value_len
;
4280 q
= p
+ strlen ("%(VALUE)");
4282 strcpy (tmp_spec_p
, q
);
4284 do_self_spec (tmp_spec
);
4287 /* Process the given spec string and add any new options to the end
4288 of the switches/n_switches array. */
4291 do_self_spec (const char *spec
)
4294 do_spec_1 (" ", 0, NULL
);
4296 if (argbuf_index
> 0)
4301 n_switches
+= argbuf_index
;
4302 switches
= xrealloc (switches
,
4303 sizeof (struct switchstr
) * (n_switches
+ 1));
4305 switches
[n_switches
] = switches
[first
];
4306 for (i
= 0; i
< argbuf_index
; i
++)
4308 struct switchstr
*sw
;
4310 /* Each switch should start with '-'. */
4311 if (argbuf
[i
][0] != '-')
4314 sw
= &switches
[i
+ first
];
4315 sw
->part1
= &argbuf
[i
][1];
4317 sw
->live_cond
= SWITCH_OK
;
4324 /* Process the sub-spec SPEC as a portion of a larger spec.
4325 This is like processing a whole spec except that we do
4326 not initialize at the beginning and we do not supply a
4327 newline by default at the end.
4328 INSWITCH nonzero means don't process %-sequences in SPEC;
4329 in this case, % is treated as an ordinary character.
4330 This is used while substituting switches.
4331 INSWITCH nonzero also causes SPC not to terminate an argument.
4333 Value is zero unless a line was finished
4334 and the command on that line reported an error. */
4337 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4339 const char *p
= spec
;
4346 /* If substituting a switch, treat all chars like letters.
4347 Otherwise, NL, SPC, TAB and % are special. */
4348 switch (inswitch
? 'a' : c
)
4351 /* End of line: finish any pending argument,
4352 then run the pending command if one has been started. */
4355 obstack_1grow (&obstack
, 0);
4356 string
= obstack_finish (&obstack
);
4357 if (this_is_library_file
)
4358 string
= find_file (string
);
4359 store_arg (string
, delete_this_arg
, this_is_output_file
);
4360 if (this_is_output_file
)
4361 outfiles
[input_file_number
] = string
;
4365 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4367 /* A `|' before the newline means use a pipe here,
4368 but only if -pipe was specified.
4369 Otherwise, execute now and don't pass the `|' as an arg. */
4372 input_from_pipe
= 1;
4379 set_collect_gcc_options ();
4381 if (argbuf_index
> 0)
4387 /* Reinitialize for a new command, and for a new argument. */
4390 delete_this_arg
= 0;
4391 this_is_output_file
= 0;
4392 this_is_library_file
= 0;
4393 input_from_pipe
= 0;
4397 /* End any pending argument. */
4400 obstack_1grow (&obstack
, 0);
4401 string
= obstack_finish (&obstack
);
4402 if (this_is_library_file
)
4403 string
= find_file (string
);
4404 store_arg (string
, delete_this_arg
, this_is_output_file
);
4405 if (this_is_output_file
)
4406 outfiles
[input_file_number
] = string
;
4410 obstack_1grow (&obstack
, c
);
4416 /* Space or tab ends an argument if one is pending. */
4419 obstack_1grow (&obstack
, 0);
4420 string
= obstack_finish (&obstack
);
4421 if (this_is_library_file
)
4422 string
= find_file (string
);
4423 store_arg (string
, delete_this_arg
, this_is_output_file
);
4424 if (this_is_output_file
)
4425 outfiles
[input_file_number
] = string
;
4427 /* Reinitialize for a new argument. */
4429 delete_this_arg
= 0;
4430 this_is_output_file
= 0;
4431 this_is_library_file
= 0;
4438 fatal ("invalid specification! Bug in cc");
4441 obstack_grow (&obstack
, input_basename
, basename_length
);
4446 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4451 delete_this_arg
= 2;
4454 /* Dump out the directories specified with LIBRARY_PATH,
4455 followed by the absolute directories
4456 that we search for startfiles. */
4459 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4460 size_t bufsize
= 100;
4461 char *buffer
= xmalloc (bufsize
);
4464 for (; pl
; pl
= pl
->next
)
4466 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4467 /* Used on systems which record the specified -L dirs
4468 and use them to search for dynamic linking. */
4469 /* Relative directories always come from -B,
4470 and it is better not to use them for searching
4471 at run time. In particular, stage1 loses. */
4472 if (!IS_ABSOLUTE_PATH (pl
->prefix
))
4475 /* Try subdirectory if there is one. */
4476 if (multilib_dir
!= NULL
4477 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4479 const char *multi_dir
;
4481 multi_dir
= pl
->os_multilib
? multilib_os_dir
4483 if (machine_suffix
&& multilib_dir
)
4485 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4487 bufsize
= (strlen (pl
->prefix
)
4488 + strlen (machine_suffix
)) * 2 + 1;
4489 buffer
= xrealloc (buffer
, bufsize
);
4490 strcpy (buffer
, pl
->prefix
);
4491 strcat (buffer
, machine_suffix
);
4492 if (is_directory (buffer
, multilib_dir
, 1))
4494 do_spec_1 ("-L", 0, NULL
);
4495 #ifdef SPACE_AFTER_L_OPTION
4496 do_spec_1 (" ", 0, NULL
);
4498 do_spec_1 (buffer
, 1, NULL
);
4499 do_spec_1 (multilib_dir
, 1, NULL
);
4500 /* Make this a separate argument. */
4501 do_spec_1 (" ", 0, NULL
);
4504 if (!pl
->require_machine_suffix
)
4506 if (is_directory (pl
->prefix
, multi_dir
, 1))
4508 do_spec_1 ("-L", 0, NULL
);
4509 #ifdef SPACE_AFTER_L_OPTION
4510 do_spec_1 (" ", 0, NULL
);
4512 do_spec_1 (pl
->prefix
, 1, NULL
);
4513 do_spec_1 (multi_dir
, 1, NULL
);
4514 /* Make this a separate argument. */
4515 do_spec_1 (" ", 0, NULL
);
4521 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4523 do_spec_1 ("-L", 0, NULL
);
4524 #ifdef SPACE_AFTER_L_OPTION
4525 do_spec_1 (" ", 0, NULL
);
4527 do_spec_1 (pl
->prefix
, 1, NULL
);
4528 /* Remove slash from machine_suffix. */
4529 if (strlen (machine_suffix
) >= bufsize
)
4530 bufsize
= strlen (machine_suffix
) * 2 + 1;
4531 buffer
= xrealloc (buffer
, bufsize
);
4532 strcpy (buffer
, machine_suffix
);
4533 idx
= strlen (buffer
);
4534 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4535 buffer
[idx
- 1] = 0;
4536 do_spec_1 (buffer
, 1, NULL
);
4537 /* Make this a separate argument. */
4538 do_spec_1 (" ", 0, NULL
);
4541 if (!pl
->require_machine_suffix
)
4543 if (is_directory (pl
->prefix
, "", 1))
4545 do_spec_1 ("-L", 0, NULL
);
4546 #ifdef SPACE_AFTER_L_OPTION
4547 do_spec_1 (" ", 0, NULL
);
4549 /* Remove slash from pl->prefix. */
4550 if (strlen (pl
->prefix
) >= bufsize
)
4551 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4552 buffer
= xrealloc (buffer
, bufsize
);
4553 strcpy (buffer
, pl
->prefix
);
4554 idx
= strlen (buffer
);
4555 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4556 buffer
[idx
- 1] = 0;
4557 do_spec_1 (buffer
, 1, NULL
);
4558 /* Make this a separate argument. */
4559 do_spec_1 (" ", 0, NULL
);
4568 /* %efoo means report an error with `foo' as error message
4569 and don't execute any more commands for this file. */
4573 while (*p
!= 0 && *p
!= '\n')
4575 buf
= alloca (p
- q
+ 1);
4576 strncpy (buf
, q
, p
- q
);
4583 /* %nfoo means report a notice with `foo' on stderr. */
4587 while (*p
!= 0 && *p
!= '\n')
4589 buf
= alloca (p
- q
+ 1);
4590 strncpy (buf
, q
, p
- q
);
4592 notice ("%s\n", buf
);
4602 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4603 defined, and it is not a directory, and it is
4604 writable, use it. Otherwise, treat this like any
4605 other temporary file. */
4607 if ((!save_temps_flag
)
4608 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4609 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4611 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4612 strlen (HOST_BIT_BUCKET
));
4613 delete_this_arg
= 0;
4618 goto create_temp_file
;
4622 obstack_1grow (&obstack
, '-');
4623 delete_this_arg
= 0;
4626 /* consume suffix */
4627 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4629 if (p
[0] == '%' && p
[1] == 'O')
4634 goto create_temp_file
;
4638 /* consume suffix */
4639 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4641 if (p
[0] == '%' && p
[1] == 'O')
4646 goto create_temp_file
;
4652 struct temp_name
*t
;
4654 const char *suffix
= p
;
4655 char *saved_suffix
= NULL
;
4657 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4659 suffix_length
= p
- suffix
;
4660 if (p
[0] == '%' && p
[1] == 'O')
4663 /* We don't support extra suffix characters after %O. */
4664 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4666 if (suffix_length
== 0)
4667 suffix
= TARGET_OBJECT_SUFFIX
;
4671 = xmalloc (suffix_length
4672 + strlen (TARGET_OBJECT_SUFFIX
));
4673 strncpy (saved_suffix
, suffix
, suffix_length
);
4674 strcpy (saved_suffix
+ suffix_length
,
4675 TARGET_OBJECT_SUFFIX
);
4677 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4680 /* If the input_filename has the same suffix specified
4681 for the %g, %u, or %U, and -save-temps is specified,
4682 we could end up using that file as an intermediate
4683 thus clobbering the user's source file (.e.g.,
4684 gcc -save-temps foo.s would clobber foo.s with the
4685 output of cpp0). So check for this condition and
4686 generate a temp file as the intermediate. */
4688 if (save_temps_flag
)
4690 temp_filename_length
= basename_length
+ suffix_length
;
4691 temp_filename
= alloca (temp_filename_length
+ 1);
4692 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4693 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4695 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4696 if (strcmp (temp_filename
, input_filename
) != 0)
4698 struct stat st_temp
;
4700 /* Note, set_input() resets input_stat_set to 0. */
4701 if (input_stat_set
== 0)
4703 input_stat_set
= stat (input_filename
, &input_stat
);
4704 if (input_stat_set
>= 0)
4708 /* If we have the stat for the input_filename
4709 and we can do the stat for the temp_filename
4710 then the they could still refer to the same
4711 file if st_dev/st_ino's are the same. */
4713 if (input_stat_set
!= 1
4714 || stat (temp_filename
, &st_temp
) < 0
4715 || input_stat
.st_dev
!= st_temp
.st_dev
4716 || input_stat
.st_ino
!= st_temp
.st_ino
)
4718 temp_filename
= save_string (temp_filename
,
4719 temp_filename_length
+ 1);
4720 obstack_grow (&obstack
, temp_filename
,
4721 temp_filename_length
);
4723 delete_this_arg
= 0;
4729 /* See if we already have an association of %g/%u/%U and
4731 for (t
= temp_names
; t
; t
= t
->next
)
4732 if (t
->length
== suffix_length
4733 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4734 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4737 /* Make a new association if needed. %u and %j
4739 if (t
== 0 || c
== 'u' || c
== 'j')
4743 t
= xmalloc (sizeof (struct temp_name
));
4744 t
->next
= temp_names
;
4747 t
->length
= suffix_length
;
4750 t
->suffix
= saved_suffix
;
4751 saved_suffix
= NULL
;
4754 t
->suffix
= save_string (suffix
, suffix_length
);
4755 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4756 temp_filename
= make_temp_file (t
->suffix
);
4757 temp_filename_length
= strlen (temp_filename
);
4758 t
->filename
= temp_filename
;
4759 t
->filename_length
= temp_filename_length
;
4763 free (saved_suffix
);
4765 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4766 delete_this_arg
= 1;
4774 for (i
= 0; (int) i
< n_infiles
; i
++)
4775 store_arg (infiles
[i
].name
, 0, 0);
4779 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4786 struct prefix_list
*pl
= include_prefixes
.plist
;
4788 if (gcc_exec_prefix
)
4790 do_spec_1 ("-iprefix", 1, NULL
);
4791 /* Make this a separate argument. */
4792 do_spec_1 (" ", 0, NULL
);
4793 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4794 do_spec_1 (" ", 0, NULL
);
4797 if (target_system_root_changed
||
4798 (target_system_root
&& target_sysroot_hdrs_suffix
))
4800 do_spec_1 ("-isysroot", 1, NULL
);
4801 /* Make this a separate argument. */
4802 do_spec_1 (" ", 0, NULL
);
4803 do_spec_1 (target_system_root
, 1, NULL
);
4804 if (target_sysroot_hdrs_suffix
)
4805 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4806 do_spec_1 (" ", 0, NULL
);
4809 for (; pl
; pl
= pl
->next
)
4811 do_spec_1 ("-isystem", 1, NULL
);
4812 /* Make this a separate argument. */
4813 do_spec_1 (" ", 0, NULL
);
4814 do_spec_1 (pl
->prefix
, 1, NULL
);
4815 do_spec_1 (" ", 0, NULL
);
4822 int max
= n_infiles
;
4823 max
+= lang_specific_extra_outfiles
;
4825 for (i
= 0; i
< max
; i
++)
4827 store_arg (outfiles
[i
], 0, 0);
4832 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4837 this_is_library_file
= 1;
4841 outfiles
[input_file_number
] = NULL
;
4845 this_is_output_file
= 1;
4850 int cur_index
= argbuf_index
;
4851 /* Handle the {...} following the %W. */
4854 p
= handle_braces (p
+ 1);
4857 /* End any pending argument. */
4860 obstack_1grow (&obstack
, 0);
4861 string
= obstack_finish (&obstack
);
4862 if (this_is_library_file
)
4863 string
= find_file (string
);
4864 store_arg (string
, delete_this_arg
, this_is_output_file
);
4865 if (this_is_output_file
)
4866 outfiles
[input_file_number
] = string
;
4869 /* If any args were output, mark the last one for deletion
4871 if (argbuf_index
!= cur_index
)
4872 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4876 /* %x{OPTION} records OPTION for %X to output. */
4882 /* Skip past the option value and make a copy. */
4887 string
= save_string (p1
+ 1, p
- p1
- 2);
4889 /* See if we already recorded this option. */
4890 for (i
= 0; i
< n_linker_options
; i
++)
4891 if (! strcmp (string
, linker_options
[i
]))
4897 /* This option is new; add it. */
4898 add_linker_option (string
, strlen (string
));
4902 /* Dump out the options accumulated previously using %x. */
4904 for (i
= 0; i
< n_linker_options
; i
++)
4906 do_spec_1 (linker_options
[i
], 1, NULL
);
4907 /* Make each accumulated option a separate argument. */
4908 do_spec_1 (" ", 0, NULL
);
4912 /* Dump out the options accumulated previously using -Wa,. */
4914 for (i
= 0; i
< n_assembler_options
; i
++)
4916 do_spec_1 (assembler_options
[i
], 1, NULL
);
4917 /* Make each accumulated option a separate argument. */
4918 do_spec_1 (" ", 0, NULL
);
4922 /* Dump out the options accumulated previously using -Wp,. */
4924 for (i
= 0; i
< n_preprocessor_options
; i
++)
4926 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4927 /* Make each accumulated option a separate argument. */
4928 do_spec_1 (" ", 0, NULL
);
4932 /* Here are digits and numbers that just process
4933 a certain constant string as a spec. */
4936 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4942 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4948 value
= do_spec_1 (asm_spec
, 0, NULL
);
4954 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4961 const char *const spec
4962 = (input_file_compiler
->cpp_spec
4963 ? input_file_compiler
->cpp_spec
4965 value
= do_spec_1 (spec
, 0, NULL
);
4972 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4978 value
= do_spec_1 (link_spec
, 0, NULL
);
4984 value
= do_spec_1 (lib_spec
, 0, NULL
);
4990 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4996 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
5002 len
= strlen (multilib_dir
);
5003 obstack_blank (&obstack
, len
+ 1);
5004 p
= obstack_next_free (&obstack
) - (len
+ 1);
5007 for (q
= multilib_dir
; *q
; ++q
, ++p
)
5008 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
5013 /* We assume there is a directory
5014 separator at the end of this string. */
5015 if (target_system_root
)
5017 obstack_grow (&obstack
, target_system_root
,
5018 strlen (target_system_root
));
5019 if (target_sysroot_suffix
)
5020 obstack_grow (&obstack
, target_sysroot_suffix
,
5021 strlen (target_sysroot_suffix
));
5026 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5031 /* Here we define characters other than letters and digits. */
5034 p
= handle_braces (p
);
5040 p
= handle_spec_function (p
);
5046 obstack_1grow (&obstack
, '%');
5053 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5055 suffix_subst
= save_string (p
- 1, len
+ 1);
5060 /* Henceforth ignore the option(s) matching the pattern
5065 int have_wildcard
= 0;
5068 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5071 if (p
[len
-1] == '*')
5074 for (i
= 0; i
< n_switches
; i
++)
5075 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5076 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5078 switches
[i
].live_cond
= SWITCH_IGNORE
;
5079 switches
[i
].validated
= 1;
5087 if (soft_matched_part
)
5089 do_spec_1 (soft_matched_part
, 1, NULL
);
5090 do_spec_1 (" ", 0, NULL
);
5093 /* Catch the case where a spec string contains something like
5094 '%{foo:%*}'. ie there is no * in the pattern on the left
5095 hand side of the :. */
5096 error ("spec failure: '%%*' has not been initialized by pattern match");
5099 /* Process a string found as the value of a spec given by name.
5100 This feature allows individual machine descriptions
5101 to add and use their own specs.
5102 %[...] modifies -D options the way %P does;
5103 %(...) uses the spec unmodified. */
5105 error ("warning: use of obsolete %%[ operator in specs");
5108 const char *name
= p
;
5109 struct spec_list
*sl
;
5112 /* The string after the S/P is the name of a spec that is to be
5114 while (*p
&& *p
!= ')' && *p
!= ']')
5117 /* See if it's in the list. */
5118 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5119 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5121 name
= *(sl
->ptr_spec
);
5123 notice ("Processing spec %c%s%c, which is '%s'\n",
5124 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5133 value
= do_spec_1 (name
, 0, NULL
);
5139 char *x
= alloca (strlen (name
) * 2 + 1);
5141 const char *y
= name
;
5144 /* Copy all of NAME into BUF, but put __ after
5145 every -D and at the end of each arg. */
5148 if (! strncmp (y
, "-D", 2))
5159 && (*y
== ' ' || *y
== '\t' || *y
== '='
5160 || *y
== '}' || *y
== 0))
5173 value
= do_spec_1 (buf
, 0, NULL
);
5179 /* Discard the closing paren or bracket. */
5186 error ("spec failure: unrecognized spec option '%c'", c
);
5192 /* Backslash: treat next character as ordinary. */
5197 /* Ordinary character: put it into the current argument. */
5198 obstack_1grow (&obstack
, c
);
5202 /* End of string. If we are processing a spec function, we need to
5203 end any pending argument. */
5204 if (processing_spec_function
&& arg_going
)
5206 obstack_1grow (&obstack
, 0);
5207 string
= obstack_finish (&obstack
);
5208 if (this_is_library_file
)
5209 string
= find_file (string
);
5210 store_arg (string
, delete_this_arg
, this_is_output_file
);
5211 if (this_is_output_file
)
5212 outfiles
[input_file_number
] = string
;
5219 /* Look up a spec function. */
5221 static const struct spec_function
*
5222 lookup_spec_function (const char *name
)
5224 static const struct spec_function
* const spec_function_tables
[] =
5226 static_spec_functions
,
5227 lang_specific_spec_functions
,
5229 const struct spec_function
*sf
;
5232 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5234 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5235 if (strcmp (sf
->name
, name
) == 0)
5242 /* Evaluate a spec function. */
5245 eval_spec_function (const char *func
, const char *args
)
5247 const struct spec_function
*sf
;
5248 const char *funcval
;
5250 /* Saved spec processing context. */
5251 int save_argbuf_index
;
5252 int save_argbuf_length
;
5253 const char **save_argbuf
;
5256 int save_delete_this_arg
;
5257 int save_this_is_output_file
;
5258 int save_this_is_library_file
;
5259 int save_input_from_pipe
;
5260 const char *save_suffix_subst
;
5263 sf
= lookup_spec_function (func
);
5265 fatal ("unknown spec function `%s'", func
);
5267 /* Push the spec processing context. */
5268 save_argbuf_index
= argbuf_index
;
5269 save_argbuf_length
= argbuf_length
;
5270 save_argbuf
= argbuf
;
5272 save_arg_going
= arg_going
;
5273 save_delete_this_arg
= delete_this_arg
;
5274 save_this_is_output_file
= this_is_output_file
;
5275 save_this_is_library_file
= this_is_library_file
;
5276 save_input_from_pipe
= input_from_pipe
;
5277 save_suffix_subst
= suffix_subst
;
5279 /* Create a new spec processing context, and build the function
5283 if (do_spec_2 (args
) < 0)
5284 fatal ("error in args to spec function `%s'", func
);
5286 /* argbuf_index is an index for the next argument to be inserted, and
5287 so contains the count of the args already inserted. */
5289 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5291 /* Pop the spec processing context. */
5292 argbuf_index
= save_argbuf_index
;
5293 argbuf_length
= save_argbuf_length
;
5295 argbuf
= save_argbuf
;
5297 arg_going
= save_arg_going
;
5298 delete_this_arg
= save_delete_this_arg
;
5299 this_is_output_file
= save_this_is_output_file
;
5300 this_is_library_file
= save_this_is_library_file
;
5301 input_from_pipe
= save_input_from_pipe
;
5302 suffix_subst
= save_suffix_subst
;
5307 /* Handle a spec function call of the form:
5311 ARGS is processed as a spec in a separate context and split into an
5312 argument vector in the normal fashion. The function returns a string
5313 containing a spec which we then process in the caller's context, or
5314 NULL if no processing is required. */
5317 handle_spec_function (const char *p
)
5320 const char *endp
, *funcval
;
5323 processing_spec_function
++;
5325 /* Get the function name. */
5326 for (endp
= p
; *endp
!= '\0'; endp
++)
5328 if (*endp
== '(') /* ) */
5330 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5331 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5332 fatal ("malformed spec function name");
5334 if (*endp
!= '(') /* ) */
5335 fatal ("no arguments for spec function");
5336 func
= save_string (p
, endp
- p
);
5339 /* Get the arguments. */
5340 for (count
= 0; *endp
!= '\0'; endp
++)
5349 else if (*endp
== '(') /* ) */
5354 fatal ("malformed spec function arguments");
5355 args
= save_string (p
, endp
- p
);
5358 /* p now points to just past the end of the spec function expression. */
5360 funcval
= eval_spec_function (func
, args
);
5361 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5367 processing_spec_function
--;
5372 /* Inline subroutine of handle_braces. Returns true if the current
5373 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5375 input_suffix_matches (const char *atom
, const char *end_atom
)
5377 return (input_suffix
5378 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5379 && input_suffix
[end_atom
- atom
] == '\0');
5382 /* Inline subroutine of handle_braces. Returns true if a switch
5383 matching the atom bracketed by ATOM and END_ATOM appeared on the
5386 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5389 int len
= end_atom
- atom
;
5390 int plen
= starred
? len
: -1;
5392 for (i
= 0; i
< n_switches
; i
++)
5393 if (!strncmp (switches
[i
].part1
, atom
, len
)
5394 && (starred
|| switches
[i
].part1
[len
] == '\0')
5395 && check_live_switch (i
, plen
))
5401 /* Inline subroutine of handle_braces. Mark all of the switches which
5402 match ATOM (extends to END_ATOM; STARRED indicates whether there
5403 was a star after the atom) for later processing. */
5405 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5408 int len
= end_atom
- atom
;
5409 int plen
= starred
? len
: -1;
5411 for (i
= 0; i
< n_switches
; i
++)
5412 if (!strncmp (switches
[i
].part1
, atom
, len
)
5413 && (starred
|| switches
[i
].part1
[len
] == '\0')
5414 && check_live_switch (i
, plen
))
5415 switches
[i
].ordering
= 1;
5418 /* Inline subroutine of handle_braces. Process all the currently
5419 marked switches through give_switch, and clear the marks. */
5421 process_marked_switches (void)
5425 for (i
= 0; i
< n_switches
; i
++)
5426 if (switches
[i
].ordering
== 1)
5428 switches
[i
].ordering
= 0;
5433 /* Handle a %{ ... } construct. P points just inside the leading {.
5434 Returns a pointer one past the end of the brace block, or 0
5435 if we call do_spec_1 and that returns -1. */
5438 handle_braces (const char *p
)
5440 const char *atom
, *end_atom
;
5441 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5448 bool a_must_be_last
= false;
5449 bool ordered_set
= false;
5450 bool disjunct_set
= false;
5451 bool disj_matched
= false;
5452 bool disj_starred
= true;
5453 bool n_way_choice
= false;
5454 bool n_way_matched
= false;
5456 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5463 /* Scan one "atom" (S in the description above of %{}, possibly
5464 with !, ., or * modifiers). */
5465 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5469 p
++, a_is_negated
= true;
5473 p
++, a_is_suffix
= true;
5476 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5477 || *p
== ',' || *p
== '.' || *p
== '@')
5482 p
++, a_is_starred
= 1;
5485 if (*p
== '&' || *p
== '}')
5487 /* Substitute the switch(es) indicated by the current atom. */
5489 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5490 || atom
== end_atom
)
5493 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5496 process_marked_switches ();
5498 else if (*p
== '|' || *p
== ':')
5500 /* Substitute some text if the current atom appears as a switch
5502 disjunct_set
= true;
5506 if (atom
== end_atom
)
5508 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5509 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5512 /* An empty term may appear as the last choice of an
5513 N-way choice set; it means "otherwise". */
5514 a_must_be_last
= true;
5515 disj_matched
= !n_way_matched
;
5516 disj_starred
= false;
5520 if (a_is_suffix
&& a_is_starred
)
5524 disj_starred
= false;
5526 /* Don't bother testing this atom if we already have a
5528 if (!disj_matched
&& !n_way_matched
)
5531 a_matched
= input_suffix_matches (atom
, end_atom
);
5533 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5535 if (a_matched
!= a_is_negated
)
5537 disj_matched
= true;
5539 d_end_atom
= end_atom
;
5546 /* Found the body, that is, the text to substitute if the
5547 current disjunction matches. */
5548 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5549 disj_matched
&& !n_way_matched
);
5553 /* If we have an N-way choice, reset state for the next
5557 n_way_choice
= true;
5558 n_way_matched
|= disj_matched
;
5559 disj_matched
= false;
5560 disj_starred
= true;
5561 d_atom
= d_end_atom
= NULL
;
5568 while (*p
++ != '}');
5575 /* Subroutine of handle_braces. Scan and process a brace substitution body
5576 (X in the description of %{} syntax). P points one past the colon;
5577 ATOM and END_ATOM bracket the first atom which was found to be true
5578 (present) in the current disjunction; STARRED indicates whether all
5579 the atoms in the current disjunction were starred (for syntax validation);
5580 MATCHED indicates whether the disjunction matched or not, and therefore
5581 whether or not the body is to be processed through do_spec_1 or just
5582 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5586 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5587 int starred
, int matched
)
5589 const char *body
, *end_body
;
5590 unsigned int nesting_level
;
5591 bool have_subst
= false;
5593 /* Locate the closing } or ;, honoring nested braces.
5594 Trim trailing whitespace. */
5603 if (!--nesting_level
)
5606 else if (*p
== ';' && nesting_level
== 1)
5608 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5610 else if (*p
== '\0')
5616 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5619 if (have_subst
&& !starred
)
5624 /* Copy the substitution body to permanent storage and execute it.
5625 If have_subst is false, this is a simple matter of running the
5626 body through do_spec_1... */
5627 char *string
= save_string (body
, end_body
- body
);
5630 if (do_spec_1 (string
, 0, NULL
) < 0)
5635 /* ... but if have_subst is true, we have to process the
5636 body once for each matching switch, with %* set to the
5637 variant part of the switch. */
5638 unsigned int hard_match_len
= end_atom
- atom
;
5641 for (i
= 0; i
< n_switches
; i
++)
5642 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5643 && check_live_switch (i
, hard_match_len
))
5645 if (do_spec_1 (string
, 0,
5646 &switches
[i
].part1
[hard_match_len
]) < 0)
5648 /* Pass any arguments this switch has. */
5650 suffix_subst
= NULL
;
5658 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5659 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5660 spec, or -1 if either exact match or %* is used.
5662 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5663 whose value does not begin with "no-" is obsoleted by the same value
5664 with the "no-", similarly for a switch with the "no-" prefix. */
5667 check_live_switch (int switchnum
, int prefix_length
)
5669 const char *name
= switches
[switchnum
].part1
;
5672 /* In the common case of {<at-most-one-letter>*}, a negating
5673 switch would always match, so ignore that case. We will just
5674 send the conflicting switches to the compiler phase. */
5675 if (prefix_length
>= 0 && prefix_length
<= 1)
5678 /* If we already processed this switch and determined if it was
5679 live or not, return our past determination. */
5680 if (switches
[switchnum
].live_cond
!= 0)
5681 return switches
[switchnum
].live_cond
> 0;
5683 /* Now search for duplicate in a manner that depends on the name. */
5687 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5688 if (switches
[i
].part1
[0] == 'O')
5690 switches
[switchnum
].validated
= 1;
5691 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5696 case 'W': case 'f': case 'm':
5697 if (! strncmp (name
+ 1, "no-", 3))
5699 /* We have Xno-YYY, search for XYYY. */
5700 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5701 if (switches
[i
].part1
[0] == name
[0]
5702 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5704 switches
[switchnum
].validated
= 1;
5705 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5711 /* We have XYYY, search for Xno-YYY. */
5712 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5713 if (switches
[i
].part1
[0] == name
[0]
5714 && switches
[i
].part1
[1] == 'n'
5715 && switches
[i
].part1
[2] == 'o'
5716 && switches
[i
].part1
[3] == '-'
5717 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5719 switches
[switchnum
].validated
= 1;
5720 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5727 /* Otherwise the switch is live. */
5728 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5732 /* Pass a switch to the current accumulating command
5733 in the same form that we received it.
5734 SWITCHNUM identifies the switch; it is an index into
5735 the vector of switches gcc received, which is `switches'.
5736 This cannot fail since it never finishes a command line.
5738 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5741 give_switch (int switchnum
, int omit_first_word
)
5743 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5746 if (!omit_first_word
)
5748 do_spec_1 ("-", 0, NULL
);
5749 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5752 if (switches
[switchnum
].args
!= 0)
5755 for (p
= switches
[switchnum
].args
; *p
; p
++)
5757 const char *arg
= *p
;
5759 do_spec_1 (" ", 0, NULL
);
5762 unsigned length
= strlen (arg
);
5765 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5766 if (arg
[length
] == '.')
5768 ((char *)arg
)[length
] = 0;
5772 do_spec_1 (arg
, 1, NULL
);
5774 ((char *)arg
)[length
] = '.';
5775 do_spec_1 (suffix_subst
, 1, NULL
);
5778 do_spec_1 (arg
, 1, NULL
);
5782 do_spec_1 (" ", 0, NULL
);
5783 switches
[switchnum
].validated
= 1;
5786 /* Search for a file named NAME trying various prefixes including the
5787 user's -B prefix and some standard ones.
5788 Return the absolute file name found. If nothing is found, return NAME. */
5791 find_file (const char *name
)
5795 /* Try multilib_dir if it is defined. */
5796 if (multilib_os_dir
!= NULL
)
5798 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5800 /* If we don't find it in the multi library dir, then fall
5801 through and look for it in the normal places. */
5802 if (newname
!= NULL
)
5806 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5807 return newname
? newname
: name
;
5810 /* Determine whether a directory exists. If LINKER, return 0 for
5811 certain fixed names not needed by the linker. If not LINKER, it is
5812 only important to return 0 if the host machine has a small ARG_MAX
5816 is_directory (const char *path1
, const char *path2
, int linker
)
5818 int len1
= strlen (path1
);
5819 int len2
= strlen (path2
);
5820 char *path
= alloca (3 + len1
+ len2
);
5824 #ifndef SMALL_ARG_MAX
5829 /* Construct the path from the two parts. Ensure the string ends with "/.".
5830 The resulting path will be a directory even if the given path is a
5832 memcpy (path
, path1
, len1
);
5833 memcpy (path
+ len1
, path2
, len2
);
5834 cp
= path
+ len1
+ len2
;
5835 if (!IS_DIR_SEPARATOR (cp
[-1]))
5836 *cp
++ = DIR_SEPARATOR
;
5840 /* Exclude directories that the linker is known to search. */
5843 && strcmp (path
, concat (dir_separator_str
, "lib",
5844 dir_separator_str
, ".", NULL
)) == 0)
5846 && strcmp (path
, concat (dir_separator_str
, "usr",
5847 dir_separator_str
, "lib",
5848 dir_separator_str
, ".", NULL
)) == 0)))
5851 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5854 /* Set up the various global variables to indicate that we're processing
5855 the input file named FILENAME. */
5858 set_input (const char *filename
)
5862 input_filename
= filename
;
5863 input_filename_length
= strlen (input_filename
);
5865 input_basename
= input_filename
;
5866 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5867 /* Skip drive name so 'x:foo' is handled properly. */
5868 if (input_basename
[1] == ':')
5869 input_basename
+= 2;
5871 for (p
= input_basename
; *p
; p
++)
5872 if (IS_DIR_SEPARATOR (*p
))
5873 input_basename
= p
+ 1;
5875 /* Find a suffix starting with the last period,
5876 and set basename_length to exclude that suffix. */
5877 basename_length
= strlen (input_basename
);
5878 suffixed_basename_length
= basename_length
;
5879 p
= input_basename
+ basename_length
;
5880 while (p
!= input_basename
&& *p
!= '.')
5882 if (*p
== '.' && p
!= input_basename
)
5884 basename_length
= p
- input_basename
;
5885 input_suffix
= p
+ 1;
5890 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5891 we will need to do a stat on the input_filename. The
5892 INPUT_STAT_SET signals that the stat is needed. */
5896 /* On fatal signals, delete all the temporary files. */
5899 fatal_error (int signum
)
5901 signal (signum
, SIG_DFL
);
5902 delete_failure_queue ();
5903 delete_temp_files ();
5904 /* Get the same signal again, this time not handled,
5905 so its normal effect occurs. */
5906 kill (getpid (), signum
);
5909 extern int main (int, const char *const *);
5912 main (int argc
, const char *const *argv
)
5916 int linker_was_run
= 0;
5917 int num_linker_inputs
= 0;
5918 char *explicit_link_files
;
5921 struct user_specs
*uptr
;
5923 p
= argv
[0] + strlen (argv
[0]);
5924 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5928 xmalloc_set_program_name (programname
);
5930 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5931 /* Perform host dependent initialization when needed. */
5932 GCC_DRIVER_HOST_INITIALIZATION
;
5935 gcc_init_libintl ();
5937 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5938 signal (SIGINT
, fatal_error
);
5940 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5941 signal (SIGHUP
, fatal_error
);
5943 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5944 signal (SIGTERM
, fatal_error
);
5946 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5947 signal (SIGPIPE
, fatal_error
);
5950 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5951 receive the signal. A different setting is inheritable */
5952 signal (SIGCHLD
, SIG_DFL
);
5955 /* Allocate the argument vector. */
5958 obstack_init (&obstack
);
5960 /* Build multilib_select, et. al from the separate lines that make up each
5961 multilib selection. */
5963 const char *const *q
= multilib_raw
;
5966 obstack_init (&multilib_obstack
);
5967 while ((p
= *q
++) != (char *) 0)
5968 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5970 obstack_1grow (&multilib_obstack
, 0);
5971 multilib_select
= obstack_finish (&multilib_obstack
);
5973 q
= multilib_matches_raw
;
5974 while ((p
= *q
++) != (char *) 0)
5975 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5977 obstack_1grow (&multilib_obstack
, 0);
5978 multilib_matches
= obstack_finish (&multilib_obstack
);
5980 q
= multilib_exclusions_raw
;
5981 while ((p
= *q
++) != (char *) 0)
5982 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5984 obstack_1grow (&multilib_obstack
, 0);
5985 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5988 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5991 obstack_1grow (&multilib_obstack
, ' ');
5992 obstack_grow (&multilib_obstack
,
5993 multilib_defaults_raw
[i
],
5994 strlen (multilib_defaults_raw
[i
]));
5998 obstack_1grow (&multilib_obstack
, 0);
5999 multilib_defaults
= obstack_finish (&multilib_obstack
);
6002 /* Set up to remember the pathname of gcc and any options
6003 needed for collect. We use argv[0] instead of programname because
6004 we need the complete pathname. */
6005 obstack_init (&collect_obstack
);
6006 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6007 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6008 putenv (obstack_finish (&collect_obstack
));
6010 #ifdef INIT_ENVIRONMENT
6011 /* Set up any other necessary machine specific environment variables. */
6012 putenv (INIT_ENVIRONMENT
);
6015 /* Make a table of what switches there are (switches, n_switches).
6016 Make a table of specified input files (infiles, n_infiles).
6017 Decode switches that are handled locally. */
6019 process_command (argc
, argv
);
6021 /* Initialize the vector of specs to just the default.
6022 This means one element containing 0s, as a terminator. */
6024 compilers
= xmalloc (sizeof default_compilers
);
6025 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6026 n_compilers
= n_default_compilers
;
6028 /* Read specs from a file if there is one. */
6030 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6031 spec_version
, dir_separator_str
, NULL
);
6032 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6034 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6035 /* Read the specs file unless it is a default one. */
6036 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6037 read_specs (specs_file
, TRUE
);
6041 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6042 for any override of as, ld and libraries. */
6043 specs_file
= alloca (strlen (standard_exec_prefix
)
6044 + strlen (just_machine_suffix
) + sizeof ("specs"));
6046 strcpy (specs_file
, standard_exec_prefix
);
6047 strcat (specs_file
, just_machine_suffix
);
6048 strcat (specs_file
, "specs");
6049 if (access (specs_file
, R_OK
) == 0)
6050 read_specs (specs_file
, TRUE
);
6052 /* Process any configure-time defaults specified for the command line
6053 options, via OPTION_DEFAULT_SPECS. */
6054 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6055 do_option_spec (option_default_specs
[i
].name
,
6056 option_default_specs
[i
].spec
);
6058 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6059 of the command line. */
6061 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6062 do_self_spec (driver_self_specs
[i
]);
6064 /* If not cross-compiling, look for executables in the standard
6066 if (*cross_compile
== '0')
6068 if (*md_exec_prefix
)
6070 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6071 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6075 /* Process sysroot_suffix_spec. */
6076 if (*sysroot_suffix_spec
!= 0
6077 && do_spec_2 (sysroot_suffix_spec
) == 0)
6079 if (argbuf_index
> 1)
6080 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6081 else if (argbuf_index
== 1)
6082 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6085 /* Process sysroot_hdrs_suffix_spec. */
6086 if (*sysroot_hdrs_suffix_spec
!= 0
6087 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6089 if (argbuf_index
> 1)
6090 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6091 else if (argbuf_index
== 1)
6092 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6095 /* Look for startfiles in the standard places. */
6096 if (*startfile_prefix_spec
!= 0
6097 && do_spec_2 (startfile_prefix_spec
) == 0
6098 && do_spec_1 (" ", 0, NULL
) == 0)
6101 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6102 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6103 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6105 /* We should eventually get rid of all these and stick to
6106 startfile_prefix_spec exclusively. */
6107 else if (*cross_compile
== '0' || target_system_root
)
6109 if (*md_exec_prefix
)
6110 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6111 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6113 if (*md_startfile_prefix
)
6114 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6115 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6117 if (*md_startfile_prefix_1
)
6118 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6119 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6121 /* If standard_startfile_prefix is relative, base it on
6122 standard_exec_prefix. This lets us move the installed tree
6123 as a unit. If GCC_EXEC_PREFIX is defined, base
6124 standard_startfile_prefix on that as well. */
6125 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6126 add_sysrooted_prefix (&startfile_prefixes
,
6127 standard_startfile_prefix
, "BINUTILS",
6128 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6131 if (gcc_exec_prefix
)
6132 add_prefix (&startfile_prefixes
,
6133 concat (gcc_exec_prefix
, machine_suffix
,
6134 standard_startfile_prefix
, NULL
),
6135 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6136 add_prefix (&startfile_prefixes
,
6137 concat (standard_exec_prefix
,
6139 standard_startfile_prefix
, NULL
),
6140 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6143 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6144 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6145 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6146 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6147 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6148 add_prefix (&startfile_prefixes
, "./", NULL
,
6149 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6153 /* Process any user specified specs in the order given on the command
6155 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6157 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6159 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6162 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6163 if (gcc_exec_prefix
)
6164 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6165 spec_version
, dir_separator_str
, NULL
);
6167 /* Now we have the specs.
6168 Set the `valid' bits for switches that match anything in any spec. */
6170 validate_all_switches ();
6172 /* Now that we have the switches and the specs, set
6173 the subdirectory based on the options. */
6174 set_multilib_dir ();
6176 /* Warn about any switches that no pass was interested in. */
6178 for (i
= 0; (int) i
< n_switches
; i
++)
6179 if (! switches
[i
].validated
)
6180 error ("unrecognized option `-%s'", switches
[i
].part1
);
6182 /* Obey some of the options. */
6184 if (print_search_dirs
)
6186 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6187 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6188 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6192 if (print_file_name
)
6194 printf ("%s\n", find_file (print_file_name
));
6198 if (print_prog_name
)
6200 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6201 printf ("%s\n", (newname
? newname
: print_prog_name
));
6205 if (print_multi_lib
)
6207 print_multilib_info ();
6211 if (print_multi_directory
)
6213 if (multilib_dir
== NULL
)
6216 printf ("%s\n", multilib_dir
);
6220 if (print_multi_os_directory
)
6222 if (multilib_os_dir
== NULL
)
6225 printf ("%s\n", multilib_os_dir
);
6229 if (target_help_flag
)
6231 /* Print if any target specific options. */
6233 /* We do not exit here. Instead we have created a fake input file
6234 called 'target-dummy' which needs to be compiled, and we pass this
6235 on to the various sub-processes, along with the --target-help
6239 if (print_help_list
)
6245 printf (_("\nFor bug reporting instructions, please see:\n"));
6246 printf ("%s.\n", bug_report_url
);
6251 /* We do not exit here. Instead we have created a fake input file
6252 called 'help-dummy' which needs to be compiled, and we pass this
6253 on the various sub-processes, along with the --help switch. */
6261 notice ("Configured with: %s\n", configuration_arguments
);
6263 #ifdef THREAD_MODEL_SPEC
6264 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6265 but there's no point in doing all this processing just to get
6266 thread_model back. */
6267 obstack_init (&obstack
);
6268 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6269 obstack_1grow (&obstack
, '\0');
6270 thrmod
= obstack_finish (&obstack
);
6272 thrmod
= thread_model
;
6275 notice ("Thread model: %s\n", thrmod
);
6277 /* compiler_version is truncated at the first space when initialized
6278 from version string, so truncate version_string at the first space
6279 before comparing. */
6280 for (n
= 0; version_string
[n
]; n
++)
6281 if (version_string
[n
] == ' ')
6284 if (! strncmp (version_string
, compiler_version
, n
)
6285 && compiler_version
[n
] == 0)
6286 notice ("gcc version %s\n", version_string
);
6288 notice ("gcc driver version %s executing gcc version %s\n",
6289 version_string
, compiler_version
);
6295 if (n_infiles
== added_libraries
)
6296 fatal ("no input files");
6298 /* Make a place to record the compiler output file names
6299 that correspond to the input files. */
6302 i
+= lang_specific_extra_outfiles
;
6303 outfiles
= xcalloc (i
, sizeof (char *));
6305 /* Record which files were specified explicitly as link input. */
6307 explicit_link_files
= xcalloc (1, n_infiles
);
6311 int lang_n_infiles
= 0;
6312 for (i
= 0; (int) i
< n_infiles
; i
++)
6314 const char *name
= infiles
[i
].name
;
6315 struct compiler
*compiler
6316 = lookup_compiler (name
, strlen (name
), infiles
[i
].language
);
6317 if (compiler
== NULL
)
6318 error ("%s: linker input file unused because linking not done",
6320 else if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
)
6321 fatal ("cannot specify -o with -c or -S and multiple languages");
6325 input_file_compiler
= compiler
;
6330 for (i
= 0; (int) i
< (combine_inputs
? 1 : n_infiles
); i
++)
6332 int this_file_error
= 0;
6334 /* Tell do_spec what to substitute for %i. */
6336 input_file_number
= i
;
6337 set_input (infiles
[i
].name
);
6339 /* Use the same thing in %o, unless cp->spec says otherwise. */
6341 outfiles
[i
] = input_filename
;
6343 /* Figure out which compiler from the file's suffix. */
6345 if (! combine_inputs
)
6347 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6348 infiles
[i
].language
);
6350 if (input_file_compiler
)
6352 /* Ok, we found an applicable compiler. Run its spec. */
6354 if (input_file_compiler
->spec
[0] == '#')
6356 error ("%s: %s compiler not installed on this system",
6357 input_filename
, &input_file_compiler
->spec
[1]);
6358 this_file_error
= 1;
6362 value
= do_spec (input_file_compiler
->spec
);
6364 this_file_error
= 1;
6368 /* If this file's name does not contain a recognized suffix,
6369 record it as explicit linker input. */
6372 explicit_link_files
[i
] = 1;
6374 /* Clear the delete-on-failure queue, deleting the files in it
6375 if this compilation failed. */
6377 if (this_file_error
)
6379 delete_failure_queue ();
6382 /* If this compilation succeeded, don't delete those files later. */
6383 clear_failure_queue ();
6386 /* Reset the output file name to the first input file name, for use
6387 with %b in LINK_SPEC on a target that prefers not to emit a.out
6390 set_input (infiles
[0].name
);
6392 if (error_count
== 0)
6394 /* Make sure INPUT_FILE_NUMBER points to first available open
6396 input_file_number
= n_infiles
;
6397 if (lang_specific_pre_link ())
6401 /* Determine if there are any linker input files. */
6402 num_linker_inputs
= 0;
6403 for (i
= 0; (int) i
< n_infiles
; i
++)
6404 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6405 num_linker_inputs
++;
6407 /* Run ld to link all the compiler output files. */
6409 if (num_linker_inputs
> 0 && error_count
== 0)
6411 int tmp
= execution_count
;
6413 /* We'll use ld if we can't find collect2. */
6414 if (! strcmp (linker_name_spec
, "collect2"))
6416 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6418 linker_name_spec
= "ld";
6420 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6422 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6423 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6425 value
= do_spec (link_command_spec
);
6428 linker_was_run
= (tmp
!= execution_count
);
6431 /* If options said don't run linker,
6432 complain about input files to be given to the linker. */
6434 if (! linker_was_run
&& error_count
== 0)
6435 for (i
= 0; (int) i
< n_infiles
; i
++)
6436 if (explicit_link_files
[i
])
6437 error ("%s: linker input file unused because linking not done",
6440 /* Delete some or all of the temporary files we made. */
6443 delete_failure_queue ();
6444 delete_temp_files ();
6446 if (print_help_list
)
6448 printf (("\nFor bug reporting instructions, please see:\n"));
6449 printf ("%s\n", bug_report_url
);
6452 return (signal_count
!= 0 ? 2
6453 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6457 /* Find the proper compilation spec for the file name NAME,
6458 whose length is LENGTH. LANGUAGE is the specified language,
6459 or 0 if this file is to be passed to the linker. */
6461 static struct compiler
*
6462 lookup_compiler (const char *name
, size_t length
, const char *language
)
6464 struct compiler
*cp
;
6466 /* If this was specified by the user to be a linker input, indicate that. */
6467 if (language
!= 0 && language
[0] == '*')
6470 /* Otherwise, look for the language, if one is spec'd. */
6473 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6474 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6477 error ("language %s not recognized", language
);
6481 /* Look for a suffix. */
6482 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6484 if (/* The suffix `-' matches only the file name `-'. */
6485 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6486 || (strlen (cp
->suffix
) < length
6487 /* See if the suffix matches the end of NAME. */
6488 && !strcmp (cp
->suffix
,
6489 name
+ length
- strlen (cp
->suffix
))
6494 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6495 /* look again, but case-insensitively this time. */
6497 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6499 if (/* The suffix `-' matches only the file name `-'. */
6500 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6501 || (strlen (cp
->suffix
) < length
6502 /* See if the suffix matches the end of NAME. */
6503 && ((!strcmp (cp
->suffix
,
6504 name
+ length
- strlen (cp
->suffix
))
6505 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6506 && !strcasecmp (cp
->suffix
,
6507 name
+ length
- strlen (cp
->suffix
)))
6513 if (cp
>= compilers
)
6515 if (cp
->spec
[0] != '@')
6516 /* A non-alias entry: return it. */
6519 /* An alias entry maps a suffix to a language.
6520 Search for the language; pass 0 for NAME and LENGTH
6521 to avoid infinite recursion if language not found. */
6522 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6528 save_string (const char *s
, int len
)
6530 char *result
= xmalloc (len
+ 1);
6532 memcpy (result
, s
, len
);
6538 pfatal_with_name (const char *name
)
6540 perror_with_name (name
);
6541 delete_temp_files ();
6546 perror_with_name (const char *name
)
6548 error ("%s: %s", name
, xstrerror (errno
));
6552 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6556 int save_errno
= errno
;
6558 /* Space for trailing '\0' is in %s. */
6559 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6560 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6566 pfatal_with_name (errmsg_fmt
);
6569 /* Output an error message and exit. */
6574 fatal ("internal gcc abort");
6577 /* Output an error message and exit. */
6580 fatal (const char *msgid
, ...)
6584 va_start (ap
, msgid
);
6586 fprintf (stderr
, "%s: ", programname
);
6587 vfprintf (stderr
, _(msgid
), ap
);
6589 fprintf (stderr
, "\n");
6590 delete_temp_files ();
6595 error (const char *msgid
, ...)
6599 va_start (ap
, msgid
);
6600 fprintf (stderr
, "%s: ", programname
);
6601 vfprintf (stderr
, _(msgid
), ap
);
6604 fprintf (stderr
, "\n");
6608 notice (const char *msgid
, ...)
6612 va_start (ap
, msgid
);
6613 vfprintf (stderr
, _(msgid
), ap
);
6618 validate_switches_from_spec (const char *spec
)
6620 const char *p
= spec
;
6623 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6624 /* We have a switch spec. */
6625 p
= validate_switches (p
+ 1);
6629 validate_all_switches (void)
6631 struct compiler
*comp
;
6632 struct spec_list
*spec
;
6634 for (comp
= compilers
; comp
->spec
; comp
++)
6635 validate_switches_from_spec (comp
->spec
);
6637 /* Look through the linked list of specs read from the specs file. */
6638 for (spec
= specs
; spec
; spec
= spec
->next
)
6639 validate_switches_from_spec (*spec
->ptr_spec
);
6641 validate_switches_from_spec (link_command_spec
);
6644 /* Look at the switch-name that comes after START
6645 and mark as valid all supplied switches that match it. */
6648 validate_switches (const char *start
)
6650 const char *p
= start
;
6654 bool suffix
= false;
6655 bool starred
= false;
6657 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6670 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6671 || *p
== ',' || *p
== '.' || *p
== '@')
6676 starred
= true, p
++;
6682 /* Mark all matching switches as valid. */
6683 for (i
= 0; i
< n_switches
; i
++)
6684 if (!strncmp (switches
[i
].part1
, atom
, len
)
6685 && (starred
|| switches
[i
].part1
[len
] == 0))
6686 switches
[i
].validated
= 1;
6690 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6693 if (*p
&& p
[-1] == ':')
6695 while (*p
&& *p
!= ';' && *p
!= '}')
6700 if (*p
== '{' || *p
== '<')
6701 p
= validate_switches (p
+1);
6702 else if (p
[0] == 'W' && p
[1] == '{')
6703 p
= validate_switches (p
+2);
6710 if (*p
&& p
[-1] == ';')
6724 static struct mdswitchstr
*mdswitches
;
6725 static int n_mdswitches
;
6727 /* Check whether a particular argument was used. The first time we
6728 canonicalize the switches to keep only the ones we care about. */
6731 used_arg (const char *p
, int len
)
6736 const char *replace
;
6741 static struct mswitchstr
*mswitches
;
6742 static int n_mswitches
;
6747 struct mswitchstr
*matches
;
6751 /* Break multilib_matches into the component strings of string
6752 and replacement string. */
6753 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6757 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6759 q
= multilib_matches
;
6769 matches
[i
].len
= q
- matches
[i
].str
;
6771 matches
[i
].replace
= ++q
;
6772 while (*q
!= ';' && *q
!= '\0')
6778 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6784 /* Now build a list of the replacement string for switches that we care
6785 about. Make sure we allocate at least one entry. This prevents
6786 xmalloc from calling fatal, and prevents us from re-executing this
6789 = xmalloc (sizeof (struct mswitchstr
)
6790 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6791 for (i
= 0; i
< n_switches
; i
++)
6793 int xlen
= strlen (switches
[i
].part1
);
6794 for (j
= 0; j
< cnt
; j
++)
6795 if (xlen
== matches
[j
].len
6796 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6798 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6799 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6800 mswitches
[n_mswitches
].replace
= (char *) 0;
6801 mswitches
[n_mswitches
].rep_len
= 0;
6807 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6808 on the command line nor any options mutually incompatible with
6810 for (i
= 0; i
< n_mdswitches
; i
++)
6814 for (q
= multilib_options
; *q
!= '\0'; q
++)
6820 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6821 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6823 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6830 if (*q
!= ' ' && *q
!= '\0')
6832 while (*r
!= ' ' && *r
!= '\0')
6835 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6838 if (used_arg (r
, q
- r
))
6843 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6844 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6845 mswitches
[n_mswitches
].replace
= (char *) 0;
6846 mswitches
[n_mswitches
].rep_len
= 0;
6859 for (i
= 0; i
< n_mswitches
; i
++)
6860 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6867 default_arg (const char *p
, int len
)
6871 for (i
= 0; i
< n_mdswitches
; i
++)
6872 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
6878 /* Work out the subdirectory to use based on the options. The format of
6879 multilib_select is a list of elements. Each element is a subdirectory
6880 name followed by a list of options followed by a semicolon. The format
6881 of multilib_exclusions is the same, but without the preceding
6882 directory. First gcc will check the exclusions, if none of the options
6883 beginning with an exclamation point are present, and all of the other
6884 options are present, then we will ignore this completely. Passing
6885 that, gcc will consider each multilib_select in turn using the same
6886 rules for matching the options. If a match is found, that subdirectory
6890 set_multilib_dir (void)
6893 unsigned int this_path_len
;
6894 const char *this_path
, *this_arg
;
6895 const char *start
, *end
;
6897 int ok
, ndfltok
, first
;
6900 start
= multilib_defaults
;
6901 while (*start
== ' ' || *start
== '\t')
6903 while (*start
!= '\0')
6906 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
6908 while (*start
== ' ' || *start
== '\t')
6916 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
6917 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6919 while (*start
== ' ' || *start
== '\t')
6925 for (end
= start
+ 1;
6926 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6929 obstack_grow (&multilib_obstack
, start
, end
- start
);
6930 obstack_1grow (&multilib_obstack
, 0);
6931 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
6932 mdswitches
[i
++].len
= end
- start
;
6939 p
= multilib_exclusions
;
6942 /* Ignore newlines. */
6949 /* Check the arguments. */
6963 while (*p
!= ' ' && *p
!= ';')
6970 if (*this_arg
!= '!')
6978 ok
= used_arg (this_arg
, p
- this_arg
);
6993 p
= multilib_select
;
6996 /* Ignore newlines. */
7003 /* Get the initial path. */
7011 this_path_len
= p
- this_path
;
7013 /* Check the arguments. */
7029 while (*p
!= ' ' && *p
!= ';')
7036 if (*this_arg
!= '!')
7044 /* If this is a default argument, we can just ignore it.
7045 This is true even if this_arg begins with '!'. Beginning
7046 with '!' does not mean that this argument is necessarily
7047 inappropriate for this library: it merely means that
7048 there is a more specific library which uses this
7049 argument. If this argument is a default, we need not
7050 consider that more specific library. */
7051 ok
= used_arg (this_arg
, p
- this_arg
);
7058 if (default_arg (this_arg
, p
- this_arg
))
7067 if (this_path_len
!= 1
7068 || this_path
[0] != '.')
7070 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7073 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7074 new_multilib_dir
[this_path_len
] = '\0';
7075 q
= strchr (new_multilib_dir
, ':');
7078 multilib_dir
= new_multilib_dir
;
7085 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7087 while (q
< end
&& *q
!= ':')
7091 char *new_multilib_os_dir
= xmalloc (end
- q
);
7092 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7093 new_multilib_os_dir
[end
- q
- 1] = '\0';
7094 multilib_os_dir
= new_multilib_os_dir
;
7102 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7103 && strcmp (multilib_os_dir
, ".") == 0)
7105 free ((char *) multilib_os_dir
);
7106 multilib_os_dir
= NULL
;
7108 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7109 multilib_os_dir
= multilib_dir
;
7112 /* Print out the multiple library subdirectory selection
7113 information. This prints out a series of lines. Each line looks
7114 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7115 required. Only the desired options are printed out, the negative
7116 matches. The options are print without a leading dash. There are
7117 no spaces to make it easy to use the information in the shell.
7118 Each subdirectory is printed only once. This assumes the ordering
7119 generated by the genmultilib script. Also, we leave out ones that match
7123 print_multilib_info (void)
7125 const char *p
= multilib_select
;
7126 const char *last_path
= 0, *this_path
;
7128 unsigned int last_path_len
= 0;
7133 /* Ignore newlines. */
7140 /* Get the initial path. */
7149 /* When --disable-multilib was used but target defines
7150 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7151 to find multilib_os_dir, so skip them from output. */
7152 if (this_path
[0] == '.' && this_path
[1] == ':')
7155 /* Check for matches with the multilib_exclusions. We don't bother
7156 with the '!' in either list. If any of the exclusion rules match
7157 all of its options with the select rule, we skip it. */
7159 const char *e
= multilib_exclusions
;
7160 const char *this_arg
;
7165 /* Ignore newlines. */
7172 /* Check the arguments. */
7189 while (*e
!= ' ' && *e
!= ';')
7200 int len
= e
- this_arg
;
7207 while (*q
!= ' ' && *q
!= ';')
7214 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7215 default_arg (this_arg
, e
- this_arg
))
7245 /* If this is a duplicate, skip it. */
7246 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7247 && ! strncmp (last_path
, this_path
, last_path_len
));
7249 last_path
= this_path
;
7250 last_path_len
= p
- this_path
;
7253 /* If this directory requires any default arguments, we can skip
7254 it. We will already have printed a directory identical to
7255 this one which does not require that default argument. */
7273 while (*q
!= ' ' && *q
!= ';')
7281 && default_arg (arg
, q
- arg
))
7296 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7315 use_arg
= *p
!= '!';
7320 while (*p
!= ' ' && *p
!= ';')
7335 /* If there are extra options, print them now. */
7336 if (multilib_extra
&& *multilib_extra
)
7338 int print_at
= TRUE
;
7341 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7362 /* if-exists built-in spec function.
7364 Checks to see if the file specified by the absolute pathname in
7365 ARGS exists. Returns that pathname if found.
7367 The usual use for this function is to check for a library file
7368 (whose name has been expanded with %s). */
7371 if_exists_spec_function (int argc
, const char **argv
)
7373 /* Must have only one argument. */
7374 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7380 /* if-exists-else built-in spec function.
7382 This is like if-exists, but takes an additional argument which
7383 is returned if the first argument does not exist. */
7386 if_exists_else_spec_function (int argc
, const char **argv
)
7388 /* Must have exactly two arguments. */
7392 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))