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*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{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 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1406 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1407 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1408 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1410 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1411 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1412 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1413 static const char *const standard_startfile_prefix_1
= "/lib/";
1414 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1416 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1417 static const char *tooldir_prefix
;
1419 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1421 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1423 /* Subdirectory to use for locating libraries. Set by
1424 set_multilib_dir based on the compilation options. */
1426 static const char *multilib_dir
;
1428 /* Subdirectory to use for locating libraries in OS conventions. Set by
1429 set_multilib_dir based on the compilation options. */
1431 static const char *multilib_os_dir
;
1433 /* Structure to keep track of the specs that have been defined so far.
1434 These are accessed using %(specname) or %[specname] in a compiler
1439 /* The following 2 fields must be first */
1440 /* to allow EXTRA_SPECS to be initialized */
1441 const char *name
; /* name of the spec. */
1442 const char *ptr
; /* available ptr if no static pointer */
1444 /* The following fields are not initialized */
1445 /* by EXTRA_SPECS */
1446 const char **ptr_spec
; /* pointer to the spec itself. */
1447 struct spec_list
*next
; /* Next spec in linked list. */
1448 int name_len
; /* length of the name */
1449 int alloc_p
; /* whether string was allocated */
1452 #define INIT_STATIC_SPEC(NAME,PTR) \
1453 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1455 /* List of statically defined specs. */
1456 static struct spec_list static_specs
[] =
1458 INIT_STATIC_SPEC ("asm", &asm_spec
),
1459 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1460 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1461 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1462 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1463 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1464 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1465 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1466 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1467 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1468 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1469 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1470 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1471 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1472 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1473 INIT_STATIC_SPEC ("link", &link_spec
),
1474 INIT_STATIC_SPEC ("lib", &lib_spec
),
1475 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1476 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1477 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1478 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1479 INIT_STATIC_SPEC ("version", &compiler_version
),
1480 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1481 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1482 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1483 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1484 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1485 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1486 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1487 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1488 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1489 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1490 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1491 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1492 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1493 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1496 #ifdef EXTRA_SPECS /* additional specs needed */
1497 /* Structure to keep track of just the first two args of a spec_list.
1498 That is all that the EXTRA_SPECS macro gives us. */
1501 const char *const name
;
1502 const char *const ptr
;
1505 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1506 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1509 /* List of dynamically allocates specs that have been defined so far. */
1511 static struct spec_list
*specs
= (struct spec_list
*) 0;
1513 /* List of static spec functions. */
1515 static const struct spec_function static_spec_functions
[] =
1517 { "if-exists", if_exists_spec_function
},
1518 { "if-exists-else", if_exists_else_spec_function
},
1522 static int processing_spec_function
;
1524 /* Add appropriate libgcc specs to OBSTACK, taking into account
1525 various permutations of -shared-libgcc, -shared, and such. */
1527 #ifdef ENABLE_SHARED_LIBGCC
1529 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1530 const char *static_name
, const char *eh_name
)
1534 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1535 "}%{!static:%{!static-libgcc:",
1536 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1537 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1538 static_name
, "}}%{shared:",
1540 "%{shared-libgcc:", shared_name
,
1541 "}%{!shared-libgcc:", static_name
, "}",
1547 obstack_grow (obstack
, buf
, strlen (buf
));
1550 #endif /* ENABLE_SHARED_LIBGCC */
1552 /* Initialize the specs lookup routines. */
1557 struct spec_list
*next
= (struct spec_list
*) 0;
1558 struct spec_list
*sl
= (struct spec_list
*) 0;
1562 return; /* Already initialized. */
1565 notice ("Using built-in specs.\n");
1568 extra_specs
= xcalloc (sizeof (struct spec_list
),
1569 ARRAY_SIZE (extra_specs_1
));
1571 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1573 sl
= &extra_specs
[i
];
1574 sl
->name
= extra_specs_1
[i
].name
;
1575 sl
->ptr
= extra_specs_1
[i
].ptr
;
1577 sl
->name_len
= strlen (sl
->name
);
1578 sl
->ptr_spec
= &sl
->ptr
;
1583 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1584 on ?: in file-scope variable initializations. */
1585 asm_debug
= ASM_DEBUG_SPEC
;
1587 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1589 sl
= &static_specs
[i
];
1594 #ifdef ENABLE_SHARED_LIBGCC
1595 /* ??? If neither -shared-libgcc nor --static-libgcc was
1596 seen, then we should be making an educated guess. Some proposed
1597 heuristics for ELF include:
1599 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1600 program will be doing dynamic loading, which will likely
1601 need the shared libgcc.
1603 (2) If "-ldl", then it's also a fair bet that we're doing
1606 (3) For each ET_DYN we're linking against (either through -lfoo
1607 or /some/path/foo.so), check to see whether it or one of
1608 its dependencies depends on a shared libgcc.
1612 If the runtime is fixed to look for program headers instead
1613 of calling __register_frame_info at all, for each object,
1614 use the shared libgcc if any EH symbol referenced.
1616 If crtstuff is fixed to not invoke __register_frame_info
1617 automatically, for each object, use the shared libgcc if
1618 any non-empty unwind section found.
1620 Doing any of this probably requires invoking an external program to
1621 do the actual object file scanning. */
1623 const char *p
= libgcc_spec
;
1626 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1627 when given the proper command line arguments. */
1630 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1632 init_gcc_specs (&obstack
,
1633 #ifdef NO_SHARED_LIBGCC_MULTILIB
1638 #ifdef USE_LIBUNWIND_EXCEPTIONS
1647 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1649 /* Ug. We don't know shared library extensions. Hope that
1650 systems that use this form don't do shared libraries. */
1651 init_gcc_specs (&obstack
,
1652 #ifdef NO_SHARED_LIBGCC_MULTILIB
1665 obstack_1grow (&obstack
, *p
);
1666 in_sep
= (*p
== ' ');
1671 obstack_1grow (&obstack
, '\0');
1672 libgcc_spec
= obstack_finish (&obstack
);
1675 #ifdef USE_AS_TRADITIONAL_FORMAT
1676 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1678 static const char tf
[] = "--traditional-format ";
1679 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1680 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1681 asm_spec
= obstack_finish (&obstack
);
1685 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1686 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1687 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1688 link_spec
= obstack_finish (&obstack
);
1694 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1695 removed; If the spec starts with a + then SPEC is added to the end of the
1699 set_spec (const char *name
, const char *spec
)
1701 struct spec_list
*sl
;
1702 const char *old_spec
;
1703 int name_len
= strlen (name
);
1706 /* If this is the first call, initialize the statically allocated specs. */
1709 struct spec_list
*next
= (struct spec_list
*) 0;
1710 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1712 sl
= &static_specs
[i
];
1719 /* See if the spec already exists. */
1720 for (sl
= specs
; sl
; sl
= sl
->next
)
1721 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1726 /* Not found - make it. */
1727 sl
= xmalloc (sizeof (struct spec_list
));
1728 sl
->name
= xstrdup (name
);
1729 sl
->name_len
= name_len
;
1730 sl
->ptr_spec
= &sl
->ptr
;
1732 *(sl
->ptr_spec
) = "";
1737 old_spec
= *(sl
->ptr_spec
);
1738 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1739 ? concat (old_spec
, spec
+ 1, NULL
)
1744 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1747 /* Free the old spec. */
1748 if (old_spec
&& sl
->alloc_p
)
1749 free ((void *) old_spec
);
1754 /* Accumulate a command (program name and args), and run it. */
1756 /* Vector of pointers to arguments in the current line of specifications. */
1758 static const char **argbuf
;
1760 /* Number of elements allocated in argbuf. */
1762 static int argbuf_length
;
1764 /* Number of elements in argbuf currently in use (containing args). */
1766 static int argbuf_index
;
1768 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1769 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1772 static struct temp_name
{
1773 const char *suffix
; /* suffix associated with the code. */
1774 int length
; /* strlen (suffix). */
1775 int unique
; /* Indicates whether %g or %u/%U was used. */
1776 const char *filename
; /* associated filename. */
1777 int filename_length
; /* strlen (filename). */
1778 struct temp_name
*next
;
1781 /* Number of commands executed so far. */
1783 static int execution_count
;
1785 /* Number of commands that exited with a signal. */
1787 static int signal_count
;
1789 /* Name with which this program was invoked. */
1791 static const char *programname
;
1793 /* Allocate the argument vector. */
1799 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1802 /* Clear out the vector of arguments (after a command is executed). */
1810 /* Add one argument to the vector at the end.
1811 This is done when a space is seen or at the end of the line.
1812 If DELETE_ALWAYS is nonzero, the arg is a filename
1813 and the file should be deleted eventually.
1814 If DELETE_FAILURE is nonzero, the arg is a filename
1815 and the file should be deleted if this compilation fails. */
1818 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1820 if (argbuf_index
+ 1 == argbuf_length
)
1821 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1823 argbuf
[argbuf_index
++] = arg
;
1824 argbuf
[argbuf_index
] = 0;
1826 if (delete_always
|| delete_failure
)
1827 record_temp_file (arg
, delete_always
, delete_failure
);
1830 /* Load specs from a file name named FILENAME, replacing occurrences of
1831 various different types of line-endings, \r\n, \n\r and just \r, with
1835 load_specs (const char *filename
)
1839 struct stat statbuf
;
1846 notice ("Reading specs from %s\n", filename
);
1848 /* Open and stat the file. */
1849 desc
= open (filename
, O_RDONLY
, 0);
1851 pfatal_with_name (filename
);
1852 if (stat (filename
, &statbuf
) < 0)
1853 pfatal_with_name (filename
);
1855 /* Read contents of file into BUFFER. */
1856 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1857 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1859 pfatal_with_name (filename
);
1860 buffer
[readlen
] = 0;
1863 specs
= xmalloc (readlen
+ 1);
1865 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1871 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1873 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1887 /* Read compilation specs from a file named FILENAME,
1888 replacing the default ones.
1890 A suffix which starts with `*' is a definition for
1891 one of the machine-specific sub-specs. The "suffix" should be
1892 *asm, *cc1, *cpp, *link, *startfile, etc.
1893 The corresponding spec is stored in asm_spec, etc.,
1894 rather than in the `compilers' vector.
1896 Anything invalid in the file is a fatal error. */
1899 read_specs (const char *filename
, int main_p
)
1904 buffer
= load_specs (filename
);
1906 /* Scan BUFFER for specs, putting them in the vector. */
1912 char *in
, *out
, *p1
, *p2
, *p3
;
1914 /* Advance P in BUFFER to the next nonblank nocomment line. */
1915 p
= skip_whitespace (p
);
1919 /* Is this a special command that starts with '%'? */
1920 /* Don't allow this for the main specs file, since it would
1921 encourage people to overwrite it. */
1922 if (*p
== '%' && !main_p
)
1925 while (*p
&& *p
!= '\n')
1931 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1932 && (p1
[sizeof "%include" - 1] == ' '
1933 || p1
[sizeof "%include" - 1] == '\t'))
1937 p1
+= sizeof ("%include");
1938 while (*p1
== ' ' || *p1
== '\t')
1941 if (*p1
++ != '<' || p
[-2] != '>')
1942 fatal ("specs %%include syntax malformed after %ld characters",
1943 (long) (p1
- buffer
+ 1));
1946 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1947 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1950 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1951 && (p1
[sizeof "%include_noerr" - 1] == ' '
1952 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1956 p1
+= sizeof "%include_noerr";
1957 while (*p1
== ' ' || *p1
== '\t')
1960 if (*p1
++ != '<' || p
[-2] != '>')
1961 fatal ("specs %%include syntax malformed after %ld characters",
1962 (long) (p1
- buffer
+ 1));
1965 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1967 read_specs (new_filename
, FALSE
);
1968 else if (verbose_flag
)
1969 notice ("could not find specs file %s\n", p1
);
1972 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1973 && (p1
[sizeof "%rename" - 1] == ' '
1974 || p1
[sizeof "%rename" - 1] == '\t'))
1977 struct spec_list
*sl
;
1978 struct spec_list
*newsl
;
1980 /* Get original name. */
1981 p1
+= sizeof "%rename";
1982 while (*p1
== ' ' || *p1
== '\t')
1985 if (! ISALPHA ((unsigned char) *p1
))
1986 fatal ("specs %%rename syntax malformed after %ld characters",
1987 (long) (p1
- buffer
));
1990 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1993 if (*p2
!= ' ' && *p2
!= '\t')
1994 fatal ("specs %%rename syntax malformed after %ld characters",
1995 (long) (p2
- buffer
));
1999 while (*p2
== ' ' || *p2
== '\t')
2002 if (! ISALPHA ((unsigned char) *p2
))
2003 fatal ("specs %%rename syntax malformed after %ld characters",
2004 (long) (p2
- buffer
));
2006 /* Get new spec name. */
2008 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2012 fatal ("specs %%rename syntax malformed after %ld characters",
2013 (long) (p3
- buffer
));
2016 for (sl
= specs
; sl
; sl
= sl
->next
)
2017 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2021 fatal ("specs %s spec was not found to be renamed", p1
);
2023 if (strcmp (p1
, p2
) == 0)
2026 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2027 if (strcmp (newsl
->name
, p2
) == 0)
2028 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2033 notice ("rename spec %s to %s\n", p1
, p2
);
2035 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2039 set_spec (p2
, *(sl
->ptr_spec
));
2041 free ((void *) *(sl
->ptr_spec
));
2043 *(sl
->ptr_spec
) = "";
2048 fatal ("specs unknown %% command after %ld characters",
2049 (long) (p1
- buffer
));
2052 /* Find the colon that should end the suffix. */
2054 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2057 /* The colon shouldn't be missing. */
2059 fatal ("specs file malformed after %ld characters",
2060 (long) (p1
- buffer
));
2062 /* Skip back over trailing whitespace. */
2064 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2067 /* Copy the suffix to a string. */
2068 suffix
= save_string (p
, p2
- p
);
2069 /* Find the next line. */
2070 p
= skip_whitespace (p1
+ 1);
2072 fatal ("specs file malformed after %ld characters",
2073 (long) (p
- buffer
));
2076 /* Find next blank line or end of string. */
2077 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2080 /* Specs end at the blank line and do not include the newline. */
2081 spec
= save_string (p
, p1
- p
);
2084 /* Delete backslash-newline sequences from the spec. */
2089 if (in
[0] == '\\' && in
[1] == '\n')
2091 else if (in
[0] == '#')
2092 while (*in
&& *in
!= '\n')
2100 if (suffix
[0] == '*')
2102 if (! strcmp (suffix
, "*link_command"))
2103 link_command_spec
= spec
;
2105 set_spec (suffix
+ 1, spec
);
2109 /* Add this pair to the vector. */
2111 = xrealloc (compilers
,
2112 (n_compilers
+ 2) * sizeof (struct compiler
));
2114 compilers
[n_compilers
].suffix
= suffix
;
2115 compilers
[n_compilers
].spec
= spec
;
2117 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2121 link_command_spec
= spec
;
2124 if (link_command_spec
== 0)
2125 fatal ("spec file has no spec for linking");
2128 /* Record the names of temporary files we tell compilers to write,
2129 and delete them at the end of the run. */
2131 /* This is the common prefix we use to make temp file names.
2132 It is chosen once for each run of this program.
2133 It is substituted into a spec by %g or %j.
2134 Thus, all temp file names contain this prefix.
2135 In practice, all temp file names start with this prefix.
2137 This prefix comes from the envvar TMPDIR if it is defined;
2138 otherwise, from the P_tmpdir macro if that is defined;
2139 otherwise, in /usr/tmp or /tmp;
2140 or finally the current directory if all else fails. */
2142 static const char *temp_filename
;
2144 /* Length of the prefix. */
2146 static int temp_filename_length
;
2148 /* Define the list of temporary files to delete. */
2153 struct temp_file
*next
;
2156 /* Queue of files to delete on success or failure of compilation. */
2157 static struct temp_file
*always_delete_queue
;
2158 /* Queue of files to delete on failure of compilation. */
2159 static struct temp_file
*failure_delete_queue
;
2161 /* Record FILENAME as a file to be deleted automatically.
2162 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2163 otherwise delete it in any case.
2164 FAIL_DELETE nonzero means delete it if a compilation step fails;
2165 otherwise delete it in any case. */
2168 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2170 char *const name
= xstrdup (filename
);
2174 struct temp_file
*temp
;
2175 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2176 if (! strcmp (name
, temp
->name
))
2179 temp
= xmalloc (sizeof (struct temp_file
));
2180 temp
->next
= always_delete_queue
;
2182 always_delete_queue
= temp
;
2189 struct temp_file
*temp
;
2190 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2191 if (! strcmp (name
, temp
->name
))
2194 temp
= xmalloc (sizeof (struct temp_file
));
2195 temp
->next
= failure_delete_queue
;
2197 failure_delete_queue
= temp
;
2203 /* Delete all the temporary files whose names we previously recorded. */
2206 delete_if_ordinary (const char *name
)
2212 printf ("Delete %s? (y or n) ", name
);
2216 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2219 if (i
== 'y' || i
== 'Y')
2221 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2222 if (unlink (name
) < 0)
2224 perror_with_name (name
);
2228 delete_temp_files (void)
2230 struct temp_file
*temp
;
2232 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2233 delete_if_ordinary (temp
->name
);
2234 always_delete_queue
= 0;
2237 /* Delete all the files to be deleted on error. */
2240 delete_failure_queue (void)
2242 struct temp_file
*temp
;
2244 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2245 delete_if_ordinary (temp
->name
);
2249 clear_failure_queue (void)
2251 failure_delete_queue
= 0;
2254 /* Build a list of search directories from PATHS.
2255 PREFIX is a string to prepend to the list.
2256 If CHECK_DIR_P is nonzero we ensure the directory exists.
2257 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2258 It is also used by the --print-search-dirs flag. */
2261 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2264 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2266 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2267 int first_time
= TRUE
;
2268 struct prefix_list
*pprefix
;
2270 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2271 obstack_1grow (&collect_obstack
, '=');
2273 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2275 int len
= strlen (pprefix
->prefix
);
2279 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2282 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2285 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2286 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2289 if (just_machine_suffix
2290 && pprefix
->require_machine_suffix
== 2
2292 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2295 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2298 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2299 obstack_grow (&collect_obstack
, just_machine_suffix
,
2303 if (! pprefix
->require_machine_suffix
)
2306 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2309 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2313 obstack_1grow (&collect_obstack
, '\0');
2314 return obstack_finish (&collect_obstack
);
2317 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2321 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2323 putenv (build_search_list (paths
, env_var
, 1));
2326 /* Check whether NAME can be accessed in MODE. This is like access,
2327 except that it never considers directories to be executable. */
2330 access_check (const char *name
, int mode
)
2336 if (stat (name
, &st
) < 0
2337 || S_ISDIR (st
.st_mode
))
2341 return access (name
, mode
);
2344 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2345 access to check permissions.
2346 Return 0 if not found, otherwise return its name, allocated with malloc. */
2349 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2353 const char *const file_suffix
=
2354 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2355 struct prefix_list
*pl
;
2356 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2357 const char *multilib_name
, *multilib_os_name
;
2359 #ifdef DEFAULT_ASSEMBLER
2360 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2361 return xstrdup (DEFAULT_ASSEMBLER
);
2364 #ifdef DEFAULT_LINKER
2365 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2366 return xstrdup (DEFAULT_LINKER
);
2370 len
+= strlen (machine_suffix
);
2372 multilib_name
= name
;
2373 multilib_os_name
= name
;
2374 if (multilib
&& multilib_os_dir
)
2376 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2377 int len2
= strlen (multilib_os_dir
) + 1;
2379 len
+= len1
> len2
? len1
: len2
;
2381 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2383 if (strcmp (multilib_os_dir
, ".") != 0)
2384 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2388 temp
= xmalloc (len
);
2390 /* Determine the filename to execute (special case for absolute paths). */
2392 if (IS_ABSOLUTE_PATH (name
))
2394 if (access (name
, mode
) == 0)
2396 strcpy (temp
, name
);
2401 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2403 const char *this_name
2404 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2408 /* Some systems have a suffix for executable files.
2409 So try appending that first. */
2410 if (file_suffix
[0] != 0)
2412 strcpy (temp
, pl
->prefix
);
2413 strcat (temp
, machine_suffix
);
2414 strcat (temp
, multilib_name
);
2415 strcat (temp
, file_suffix
);
2416 if (access_check (temp
, mode
) == 0)
2418 if (pl
->used_flag_ptr
!= 0)
2419 *pl
->used_flag_ptr
= 1;
2424 /* Now try just the multilib_name. */
2425 strcpy (temp
, pl
->prefix
);
2426 strcat (temp
, machine_suffix
);
2427 strcat (temp
, multilib_name
);
2428 if (access_check (temp
, mode
) == 0)
2430 if (pl
->used_flag_ptr
!= 0)
2431 *pl
->used_flag_ptr
= 1;
2436 /* Certain prefixes are tried with just the machine type,
2437 not the version. This is used for finding as, ld, etc. */
2438 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2440 /* Some systems have a suffix for executable files.
2441 So try appending that first. */
2442 if (file_suffix
[0] != 0)
2444 strcpy (temp
, pl
->prefix
);
2445 strcat (temp
, just_machine_suffix
);
2446 strcat (temp
, multilib_name
);
2447 strcat (temp
, file_suffix
);
2448 if (access_check (temp
, mode
) == 0)
2450 if (pl
->used_flag_ptr
!= 0)
2451 *pl
->used_flag_ptr
= 1;
2456 strcpy (temp
, pl
->prefix
);
2457 strcat (temp
, just_machine_suffix
);
2458 strcat (temp
, multilib_name
);
2459 if (access_check (temp
, mode
) == 0)
2461 if (pl
->used_flag_ptr
!= 0)
2462 *pl
->used_flag_ptr
= 1;
2467 /* Certain prefixes can't be used without the machine suffix
2468 when the machine or version is explicitly specified. */
2469 if (! pl
->require_machine_suffix
)
2471 /* Some systems have a suffix for executable files.
2472 So try appending that first. */
2473 if (file_suffix
[0] != 0)
2475 strcpy (temp
, pl
->prefix
);
2476 strcat (temp
, this_name
);
2477 strcat (temp
, file_suffix
);
2478 if (access_check (temp
, mode
) == 0)
2480 if (pl
->used_flag_ptr
!= 0)
2481 *pl
->used_flag_ptr
= 1;
2486 strcpy (temp
, pl
->prefix
);
2487 strcat (temp
, this_name
);
2488 if (access_check (temp
, mode
) == 0)
2490 if (pl
->used_flag_ptr
!= 0)
2491 *pl
->used_flag_ptr
= 1;
2501 /* Ranking of prefixes in the sort list. -B prefixes are put before
2504 enum path_prefix_priority
2506 PREFIX_PRIORITY_B_OPT
,
2507 PREFIX_PRIORITY_LAST
2510 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2511 order according to PRIORITY. Within each PRIORITY, new entries are
2514 If WARN is nonzero, we will warn if no file is found
2515 through this prefix. WARN should point to an int
2516 which will be set to 1 if this entry is used.
2518 COMPONENT is the value to be passed to update_path.
2520 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2521 the complete value of machine_suffix.
2522 2 means try both machine_suffix and just_machine_suffix. */
2525 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2526 const char *component
, /* enum prefix_priority */ int priority
,
2527 int require_machine_suffix
, int *warn
, int os_multilib
)
2529 struct prefix_list
*pl
, **prev
;
2532 for (prev
= &pprefix
->plist
;
2533 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2534 prev
= &(*prev
)->next
)
2537 /* Keep track of the longest prefix. */
2539 prefix
= update_path (prefix
, component
);
2540 len
= strlen (prefix
);
2541 if (len
> pprefix
->max_len
)
2542 pprefix
->max_len
= len
;
2544 pl
= xmalloc (sizeof (struct prefix_list
));
2545 pl
->prefix
= prefix
;
2546 pl
->require_machine_suffix
= require_machine_suffix
;
2547 pl
->used_flag_ptr
= warn
;
2548 pl
->priority
= priority
;
2549 pl
->os_multilib
= os_multilib
;
2553 /* Insert after PREV. */
2558 /* Same as add_prefix, but prepending target_system_root to prefix. */
2560 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2561 const char *component
,
2562 /* enum prefix_priority */ int priority
,
2563 int require_machine_suffix
, int *warn
, int os_multilib
)
2565 if (!IS_ABSOLUTE_PATH (prefix
))
2568 if (target_system_root
)
2570 if (target_sysroot_suffix
)
2571 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2572 prefix
= concat (target_system_root
, prefix
, NULL
);
2574 /* We have to override this because GCC's notion of sysroot
2575 moves along with GCC. */
2579 add_prefix (pprefix
, prefix
, component
, priority
,
2580 require_machine_suffix
, warn
, os_multilib
);
2583 /* Execute the command specified by the arguments on the current line of spec.
2584 When using pipes, this includes several piped-together commands
2585 with `|' between them.
2587 Return 0 if successful, -1 if failed. */
2593 int n_commands
; /* # of command. */
2597 const char *prog
; /* program name. */
2598 const char **argv
; /* vector of args. */
2599 int pid
; /* pid of process for this command. */
2602 struct command
*commands
; /* each command buffer with above info. */
2604 if (processing_spec_function
)
2607 /* Count # of piped commands. */
2608 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2609 if (strcmp (argbuf
[i
], "|") == 0)
2612 /* Get storage for each command. */
2613 commands
= alloca (n_commands
* sizeof (struct command
));
2615 /* Split argbuf into its separate piped processes,
2616 and record info about each one.
2617 Also search for the programs that are to be run. */
2619 commands
[0].prog
= argbuf
[0]; /* first command. */
2620 commands
[0].argv
= &argbuf
[0];
2621 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2624 commands
[0].argv
[0] = string
;
2626 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2627 if (strcmp (argbuf
[i
], "|") == 0)
2628 { /* each command. */
2629 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2630 fatal ("-pipe not supported");
2632 argbuf
[i
] = 0; /* termination of command args. */
2633 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2634 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2635 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2638 commands
[n_commands
].argv
[0] = string
;
2642 argbuf
[argbuf_index
] = 0;
2644 /* If -v, print what we are about to do, and maybe query. */
2648 /* For help listings, put a blank line between sub-processes. */
2649 if (print_help_list
)
2650 fputc ('\n', stderr
);
2652 /* Print each piped command as a separate line. */
2653 for (i
= 0; i
< n_commands
; i
++)
2655 const char *const *j
;
2657 if (verbose_only_flag
)
2659 for (j
= commands
[i
].argv
; *j
; j
++)
2662 fprintf (stderr
, " \"");
2663 for (p
= *j
; *p
; ++p
)
2665 if (*p
== '"' || *p
== '\\' || *p
== '$')
2666 fputc ('\\', stderr
);
2669 fputc ('"', stderr
);
2673 for (j
= commands
[i
].argv
; *j
; j
++)
2674 fprintf (stderr
, " %s", *j
);
2676 /* Print a pipe symbol after all but the last command. */
2677 if (i
+ 1 != n_commands
)
2678 fprintf (stderr
, " |");
2679 fprintf (stderr
, "\n");
2682 if (verbose_only_flag
!= 0)
2685 notice ("\nGo ahead? (y or n) ");
2689 while (getchar () != '\n')
2692 if (i
!= 'y' && i
!= 'Y')
2697 #ifdef ENABLE_VALGRIND_CHECKING
2698 /* Run the each command through valgrind. To simplify prepending the
2699 path to valgrind and the option "-q" (for quiet operation unless
2700 something triggers), we allocate a separate argv array. */
2702 for (i
= 0; i
< n_commands
; i
++)
2708 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2711 argv
= alloca ((argc
+ 3) * sizeof (char *));
2713 argv
[0] = VALGRIND_PATH
;
2715 for (j
= 2; j
< argc
+ 2; j
++)
2716 argv
[j
] = commands
[i
].argv
[j
- 2];
2719 commands
[i
].argv
= argv
;
2720 commands
[i
].prog
= argv
[0];
2724 /* Run each piped subprocess. */
2726 for (i
= 0; i
< n_commands
; i
++)
2728 char *errmsg_fmt
, *errmsg_arg
;
2729 const char *string
= commands
[i
].argv
[0];
2731 /* For some bizarre reason, the second argument of execvp() is
2732 char *const *, not const char *const *. */
2733 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2734 programname
, temp_filename
,
2735 &errmsg_fmt
, &errmsg_arg
,
2736 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2737 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2738 | (string
== commands
[i
].prog
2739 ? PEXECUTE_SEARCH
: 0)
2740 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2742 if (commands
[i
].pid
== -1)
2743 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2745 if (string
!= commands
[i
].prog
)
2746 free ((void *) string
);
2751 /* Wait for all the subprocesses to finish.
2752 We don't care what order they finish in;
2753 we know that N_COMMANDS waits will get them all.
2754 Ignore subprocesses that we don't know about,
2755 since they can be spawned by the process that exec'ed us. */
2759 #ifdef HAVE_GETRUSAGE
2761 double ut
= 0.0, st
= 0.0;
2764 for (i
= 0; i
< n_commands
;)
2770 pid
= pwait (commands
[i
].pid
, &status
, 0);
2774 #ifdef HAVE_GETRUSAGE
2777 /* getrusage returns the total resource usage of all children
2778 up to now. Copy the previous values into prus, get the
2779 current statistics, then take the difference. */
2782 getrusage (RUSAGE_CHILDREN
, &rus
);
2783 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2784 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2785 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2787 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2788 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2789 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2793 for (j
= 0; j
< n_commands
; j
++)
2794 if (commands
[j
].pid
== pid
)
2797 if (WIFSIGNALED (status
))
2800 /* SIGPIPE is a special case. It happens in -pipe mode
2801 when the compiler dies before the preprocessor is
2802 done, or the assembler dies before the compiler is
2803 done. There's generally been an error already, and
2804 this is just fallout. So don't generate another error
2805 unless we would otherwise have succeeded. */
2806 if (WTERMSIG (status
) == SIGPIPE
2807 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2812 Internal error: %s (program %s)\n\
2813 Please submit a full bug report.\n\
2814 See %s for instructions.",
2815 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2820 else if (WIFEXITED (status
)
2821 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2823 if (WEXITSTATUS (status
) > greatest_status
)
2824 greatest_status
= WEXITSTATUS (status
);
2827 #ifdef HAVE_GETRUSAGE
2828 if (report_times
&& ut
+ st
!= 0)
2829 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2838 /* Find all the switches given to us
2839 and make a vector describing them.
2840 The elements of the vector are strings, one per switch given.
2841 If a switch uses following arguments, then the `part1' field
2842 is the switch itself and the `args' field
2843 is a null-terminated vector containing the following arguments.
2844 The `live_cond' field is:
2846 1 if the switch is true in a conditional spec,
2847 -1 if false (overridden by a later switch)
2848 -2 if this switch should be ignored (used in %<S)
2849 The `validated' field is nonzero if any spec has looked at this switch;
2850 if it remains zero at the end of the run, it must be meaningless. */
2853 #define SWITCH_FALSE -1
2854 #define SWITCH_IGNORE -2
2855 #define SWITCH_LIVE 1
2862 unsigned char validated
;
2863 unsigned char ordering
;
2866 static struct switchstr
*switches
;
2868 static int n_switches
;
2873 const char *language
;
2876 /* Also a vector of input files specified. */
2878 static struct infile
*infiles
;
2882 /* True if multiple input files are being compiled to a single
2885 static bool combine_inputs
;
2887 /* This counts the number of libraries added by lang_specific_driver, so that
2888 we can tell if there were any user supplied any files or libraries. */
2890 static int added_libraries
;
2892 /* And a vector of corresponding output files is made up later. */
2894 const char **outfiles
;
2896 /* Used to track if none of the -B paths are used. */
2899 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2900 static int *warn_std_ptr
= 0;
2902 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2904 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2905 is true if we should look for an executable suffix. DO_OBJ
2906 is true if we should look for an object suffix. */
2909 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2910 int do_obj ATTRIBUTE_UNUSED
)
2912 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2920 len
= strlen (name
);
2922 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2923 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2924 if (do_obj
&& len
> 2
2925 && name
[len
- 2] == '.'
2926 && name
[len
- 1] == 'o')
2928 obstack_grow (&obstack
, name
, len
- 2);
2929 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2930 name
= obstack_finish (&obstack
);
2934 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2935 /* If there is no filetype, make it the executable suffix (which includes
2936 the "."). But don't get confused if we have just "-o". */
2937 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2940 for (i
= len
- 1; i
>= 0; i
--)
2941 if (IS_DIR_SEPARATOR (name
[i
]))
2944 for (i
++; i
< len
; i
++)
2948 obstack_grow (&obstack
, name
, len
);
2949 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2950 strlen (TARGET_EXECUTABLE_SUFFIX
));
2951 name
= obstack_finish (&obstack
);
2958 /* Display the command line switches accepted by gcc. */
2962 printf (_("Usage: %s [options] file...\n"), programname
);
2963 fputs (_("Options:\n"), stdout
);
2965 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2966 fputs (_(" --help Display this information\n"), stdout
);
2967 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2969 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2970 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2971 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2972 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2973 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2974 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2975 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2976 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2977 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2979 -print-multi-lib Display the mapping between command line options and\n\
2980 multiple library search directories\n"), stdout
);
2981 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2982 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2983 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2984 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2985 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2986 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2987 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2988 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2989 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2990 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2991 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2992 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2993 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2994 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
2995 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
2996 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2997 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2998 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2999 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3000 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3001 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3003 -x <language> Specify the language of the following input files\n\
3004 Permissible languages include: c c++ assembler none\n\
3005 'none' means revert to the default behavior of\n\
3006 guessing the language based on the file's extension\n\
3010 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3011 passed on to the various sub-processes invoked by %s. In order to pass\n\
3012 other options on to these processes the -W<letter> options must be used.\n\
3015 /* The rest of the options are displayed by invocations of the various
3020 add_preprocessor_option (const char *option
, int len
)
3022 n_preprocessor_options
++;
3024 if (! preprocessor_options
)
3025 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3027 preprocessor_options
= xrealloc (preprocessor_options
,
3028 n_preprocessor_options
* sizeof (char *));
3030 preprocessor_options
[n_preprocessor_options
- 1] =
3031 save_string (option
, len
);
3035 add_assembler_option (const char *option
, int len
)
3037 n_assembler_options
++;
3039 if (! assembler_options
)
3040 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3042 assembler_options
= xrealloc (assembler_options
,
3043 n_assembler_options
* sizeof (char *));
3045 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3049 add_linker_option (const char *option
, int len
)
3053 if (! linker_options
)
3054 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3056 linker_options
= xrealloc (linker_options
,
3057 n_linker_options
* sizeof (char *));
3059 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3062 /* Create the vector `switches' and its contents.
3063 Store its length in `n_switches'. */
3066 process_command (int argc
, const char *const *argv
)
3071 const char *spec_lang
= 0;
3072 int last_language_n_infiles
;
3075 int lang_n_infiles
= 0;
3076 #ifdef MODIFY_TARGET_NAME
3077 int is_modify_target_name
;
3081 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3085 added_libraries
= 0;
3087 /* Figure compiler version from version string. */
3089 compiler_version
= temp1
= xstrdup (version_string
);
3091 for (; *temp1
; ++temp1
)
3100 /* If there is a -V or -b option (or both), process it now, before
3101 trying to interpret the rest of the command line. */
3102 if (argc
> 1 && argv
[1][0] == '-'
3103 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3105 const char *new_version
= DEFAULT_TARGET_VERSION
;
3106 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3107 const char *progname
= argv
[0];
3112 while (argc
> 1 && argv
[1][0] == '-'
3113 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3115 char opt
= argv
[1][1];
3117 if (argv
[1][2] != '\0')
3130 fatal ("`-%c' option must have argument", opt
);
3137 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3138 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3140 new_argv0
= xmemdup (progname
, baselen
,
3141 baselen
+ concat_length (new_version
, new_machine
,
3142 "-gcc-", NULL
) + 1);
3143 strcpy (new_argv0
+ baselen
, new_machine
);
3144 strcat (new_argv0
, "-gcc-");
3145 strcat (new_argv0
, new_version
);
3147 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3148 (argc
+ 1) * sizeof (argv
[0]));
3149 new_argv
[0] = new_argv0
;
3151 execvp (new_argv0
, new_argv
);
3152 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3155 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3156 see if we can create it from the pathname specified in argv[0]. */
3158 gcc_libexec_prefix
= standard_libexec_prefix
;
3160 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3161 if (!gcc_exec_prefix
)
3163 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3164 standard_exec_prefix
);
3165 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3166 standard_bindir_prefix
,
3167 standard_libexec_prefix
);
3168 if (gcc_exec_prefix
)
3169 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3172 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3173 standard_exec_prefix
,
3174 standard_libexec_prefix
);
3178 if (gcc_exec_prefix
)
3180 int len
= strlen (gcc_exec_prefix
);
3182 if (len
> (int) sizeof ("/lib/gcc/") - 1
3183 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3185 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3186 if (IS_DIR_SEPARATOR (*temp
)
3187 && strncmp (temp
+ 1, "lib", 3) == 0
3188 && IS_DIR_SEPARATOR (temp
[4])
3189 && strncmp (temp
+ 5, "gcc", 3) == 0)
3190 len
-= sizeof ("/lib/gcc/") - 1;
3193 set_std_prefix (gcc_exec_prefix
, len
);
3194 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3195 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3196 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3197 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3200 /* COMPILER_PATH and LIBRARY_PATH have values
3201 that are lists of directory names with colons. */
3203 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3206 const char *startp
, *endp
;
3207 char *nstore
= alloca (strlen (temp
) + 3);
3209 startp
= endp
= temp
;
3212 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3214 strncpy (nstore
, startp
, endp
- startp
);
3216 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3217 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3219 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3220 nstore
[endp
- startp
+ 1] = 0;
3223 nstore
[endp
- startp
] = 0;
3224 add_prefix (&exec_prefixes
, nstore
, 0,
3225 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3226 add_prefix (&include_prefixes
,
3227 concat (nstore
, "include", NULL
),
3228 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3231 endp
= startp
= endp
+ 1;
3238 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3239 if (temp
&& *cross_compile
== '0')
3241 const char *startp
, *endp
;
3242 char *nstore
= alloca (strlen (temp
) + 3);
3244 startp
= endp
= temp
;
3247 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3249 strncpy (nstore
, startp
, endp
- startp
);
3251 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3252 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3254 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3255 nstore
[endp
- startp
+ 1] = 0;
3258 nstore
[endp
- startp
] = 0;
3259 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3260 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3263 endp
= startp
= endp
+ 1;
3270 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3271 GET_ENVIRONMENT (temp
, "LPATH");
3272 if (temp
&& *cross_compile
== '0')
3274 const char *startp
, *endp
;
3275 char *nstore
= alloca (strlen (temp
) + 3);
3277 startp
= endp
= temp
;
3280 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3282 strncpy (nstore
, startp
, endp
- startp
);
3284 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3285 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3287 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3288 nstore
[endp
- startp
+ 1] = 0;
3291 nstore
[endp
- startp
] = 0;
3292 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3293 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3296 endp
= startp
= endp
+ 1;
3303 /* Convert new-style -- options to old-style. */
3304 translate_options (&argc
, &argv
);
3306 /* Do language-specific adjustment/addition of flags. */
3307 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3309 /* Scan argv twice. Here, the first time, just count how many switches
3310 there will be in their vector, and how many input files in theirs.
3311 Here we also parse the switches that cc itself uses (e.g. -v). */
3313 for (i
= 1; i
< argc
; i
++)
3315 if (! strcmp (argv
[i
], "-dumpspecs"))
3317 struct spec_list
*sl
;
3319 for (sl
= specs
; sl
; sl
= sl
->next
)
3320 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3321 if (link_command_spec
)
3322 printf ("*link_command:\n%s\n\n", link_command_spec
);
3325 else if (! strcmp (argv
[i
], "-dumpversion"))
3327 printf ("%s\n", spec_version
);
3330 else if (! strcmp (argv
[i
], "-dumpmachine"))
3332 printf ("%s\n", spec_machine
);
3335 else if (strcmp (argv
[i
], "-fversion") == 0)
3337 /* translate_options () has turned --version into -fversion. */
3338 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3339 fputs (_("Copyright (C) 2003 Free Software Foundation, Inc.\n"),
3341 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3342 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3346 else if (strcmp (argv
[i
], "-fhelp") == 0)
3348 /* translate_options () has turned --help into -fhelp. */
3349 print_help_list
= 1;
3351 /* We will be passing a dummy file on to the sub-processes. */
3355 /* CPP driver cannot obtain switch from cc1_options. */
3357 add_preprocessor_option ("--help", 6);
3358 add_assembler_option ("--help", 6);
3359 add_linker_option ("--help", 6);
3361 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3363 /* translate_options() has turned --target-help into -ftarget-help. */
3364 target_help_flag
= 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 ("--target-help", 13);
3373 add_assembler_option ("--target-help", 13);
3374 add_linker_option ("--target-help", 13);
3376 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3378 pass_exit_codes
= 1;
3381 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3382 print_search_dirs
= 1;
3383 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3384 print_file_name
= "libgcc.a";
3385 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3386 print_file_name
= argv
[i
] + 17;
3387 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3388 print_prog_name
= argv
[i
] + 17;
3389 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3390 print_multi_lib
= 1;
3391 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3392 print_multi_directory
= 1;
3393 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3394 print_multi_os_directory
= 1;
3395 else if (! strncmp (argv
[i
], "-Wa,", 4))
3398 /* Pass the rest of this option to the assembler. */
3400 /* Split the argument at commas. */
3402 for (j
= 4; argv
[i
][j
]; j
++)
3403 if (argv
[i
][j
] == ',')
3405 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3409 /* Record the part after the last comma. */
3410 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3412 else if (! strncmp (argv
[i
], "-Wp,", 4))
3415 /* Pass the rest of this option to the preprocessor. */
3417 /* Split the argument at commas. */
3419 for (j
= 4; argv
[i
][j
]; j
++)
3420 if (argv
[i
][j
] == ',')
3422 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3426 /* Record the part after the last comma. */
3427 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3429 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3430 /* The +e options to the C++ front-end. */
3432 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3435 /* Split the argument at commas. */
3436 for (j
= 3; argv
[i
][j
]; j
++)
3437 n_infiles
+= (argv
[i
][j
] == ',');
3439 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3442 fatal ("argument to `-Xlinker' is missing");
3447 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3450 fatal ("argument to `-Xpreprocessor' is missing");
3452 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3454 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3457 fatal ("argument to `-Xassembler' is missing");
3459 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3461 else if (strcmp (argv
[i
], "-l") == 0)
3464 fatal ("argument to `-l' is missing");
3469 else if (strncmp (argv
[i
], "-l", 2) == 0)
3471 else if (strcmp (argv
[i
], "-save-temps") == 0)
3473 save_temps_flag
= 1;
3476 else if (strcmp (argv
[i
], "-specs") == 0)
3478 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3480 fatal ("argument to `-specs' is missing");
3482 user
->next
= (struct user_specs
*) 0;
3483 user
->filename
= argv
[i
];
3484 if (user_specs_tail
)
3485 user_specs_tail
->next
= user
;
3487 user_specs_head
= user
;
3488 user_specs_tail
= user
;
3490 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3492 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3493 if (strlen (argv
[i
]) == 7)
3494 fatal ("argument to `-specs=' is missing");
3496 user
->next
= (struct user_specs
*) 0;
3497 user
->filename
= argv
[i
] + 7;
3498 if (user_specs_tail
)
3499 user_specs_tail
->next
= user
;
3501 user_specs_head
= user
;
3502 user_specs_tail
= user
;
3504 else if (strcmp (argv
[i
], "-time") == 0)
3506 else if (strcmp (argv
[i
], "-pipe") == 0)
3508 /* -pipe has to go into the switches array as well as
3513 else if (strcmp (argv
[i
], "-###") == 0)
3515 /* This is similar to -v except that there is no execution
3516 of the commands and the echoed arguments are quoted. It
3517 is intended for use in shell scripts to capture the
3518 driver-generated command line. */
3519 verbose_only_flag
++;
3522 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3524 const char *p
= &argv
[i
][1];
3531 fatal ("`-%c' must come at the start of the command line", c
);
3539 if (p
[1] == 0 && i
+ 1 == argc
)
3540 fatal ("argument to `-B' is missing");
3546 len
= strlen (value
);
3548 /* Catch the case where the user has forgotten to append a
3549 directory separator to the path. Note, they may be using
3550 -B to add an executable name prefix, eg "i386-elf-", in
3551 order to distinguish between multiple installations of
3552 GCC in the same directory. Hence we must check to see
3553 if appending a directory separator actually makes a
3554 valid directory name. */
3555 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3556 && is_directory (value
, "", 0))
3558 char *tmp
= xmalloc (len
+ 2);
3559 strcpy (tmp
, value
);
3560 tmp
[len
] = DIR_SEPARATOR
;
3565 /* As a kludge, if the arg is "[foo/]stageN/", just
3566 add "[foo/]include" to the include prefix. */
3569 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3570 && strncmp (value
+ len
- 7, "stage", 5) == 0
3571 && ISDIGIT (value
[len
- 2])
3572 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3575 add_prefix (&include_prefixes
, "include", NULL
,
3576 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3579 char * string
= xmalloc (len
+ 1);
3581 strncpy (string
, value
, len
- 7);
3582 strcpy (string
+ len
- 7, "include");
3583 add_prefix (&include_prefixes
, string
, NULL
,
3584 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3588 add_prefix (&exec_prefixes
, value
, NULL
,
3589 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3590 add_prefix (&startfile_prefixes
, value
, NULL
,
3591 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3592 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3593 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3598 case 'v': /* Print our subcommands and print versions. */
3600 /* If they do anything other than exactly `-v', don't set
3601 verbose_flag; rather, continue on to give the error. */
3619 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3624 /* Forward scan, just in case -S or -c is specified
3631 if (argv
[j
][0] == '-')
3633 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3639 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3640 j
+= skip
- (argv
[j
][2] != 0);
3641 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3648 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3650 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3652 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3659 #ifdef MODIFY_TARGET_NAME
3660 is_modify_target_name
= 0;
3662 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3663 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3665 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3666 + strlen (spec_machine
));
3669 int made_addition
= 0;
3671 is_modify_target_name
= 1;
3672 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3674 if (modify_target
[j
].add_del
== DELETE
3675 && (! strncmp (q
, modify_target
[j
].str
,
3676 strlen (modify_target
[j
].str
))))
3677 p
+= strlen (modify_target
[j
].str
);
3678 else if (modify_target
[j
].add_del
== ADD
3679 && ! made_addition
&& *p
== '-')
3681 for (r
= modify_target
[j
].str
; *r
!= 0; )
3689 spec_machine
= new_name
;
3692 if (is_modify_target_name
)
3698 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3699 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3700 else if (WORD_SWITCH_TAKES_ARG (p
))
3701 i
+= WORD_SWITCH_TAKES_ARG (p
);
3711 combine_inputs
= (have_c
&& have_o
&& lang_n_infiles
> 1);
3713 if ((save_temps_flag
|| report_times
) && use_pipes
)
3715 /* -save-temps overrides -pipe, so that temp files are produced */
3716 if (save_temps_flag
)
3717 error ("warning: -pipe ignored because -save-temps specified");
3718 /* -time overrides -pipe because we can't get correct stats when
3719 multiple children are running at once. */
3720 else if (report_times
)
3721 error ("warning: -pipe ignored because -time specified");
3726 /* Set up the search paths before we go looking for config files. */
3728 /* These come before the md prefixes so that we will find gcc's subcommands
3729 (such as cpp) rather than those of the host system. */
3730 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3731 as well as trying the machine and the version. */
3733 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3734 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3735 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3736 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3737 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3738 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3739 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3740 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3741 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3742 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3745 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3746 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3747 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3748 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3750 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3751 dir_separator_str
, NULL
);
3753 /* If tooldir is relative, base it on exec_prefixes. A relative
3754 tooldir lets us move the installed tree as a unit.
3756 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3757 directories, so that we can search both the user specified directory
3758 and the standard place. */
3760 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3762 if (gcc_exec_prefix
)
3764 char *gcc_exec_tooldir_prefix
3765 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3766 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3768 add_prefix (&exec_prefixes
,
3769 concat (gcc_exec_tooldir_prefix
, "bin",
3770 dir_separator_str
, NULL
),
3771 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3772 add_prefix (&startfile_prefixes
,
3773 concat (gcc_exec_tooldir_prefix
, "lib",
3774 dir_separator_str
, NULL
),
3775 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3778 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3779 dir_separator_str
, spec_version
,
3780 dir_separator_str
, tooldir_prefix
, NULL
);
3783 add_prefix (&exec_prefixes
,
3784 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3785 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3786 add_prefix (&startfile_prefixes
,
3787 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3788 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3790 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3791 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3792 then consider it to relocate with the rest of the GCC installation
3793 if GCC_EXEC_PREFIX is set.
3794 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3795 if (target_system_root
&& gcc_exec_prefix
)
3797 char *tmp_prefix
= make_relative_prefix (argv
[0],
3798 standard_bindir_prefix
,
3799 target_system_root
);
3800 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3802 target_system_root
= tmp_prefix
;
3803 target_system_root_changed
= 1;
3808 /* More prefixes are enabled in main, after we read the specs file
3809 and determine whether this is cross-compilation or not. */
3811 /* Then create the space for the vectors and scan again. */
3813 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3814 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3817 last_language_n_infiles
= -1;
3819 /* This, time, copy the text of each switch and store a pointer
3820 to the copy in the vector of switches.
3821 Store all the infiles in their vector. */
3823 for (i
= 1; i
< argc
; i
++)
3825 /* Just skip the switches that were handled by the preceding loop. */
3826 #ifdef MODIFY_TARGET_NAME
3827 is_modify_target_name
= 0;
3829 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3830 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3831 is_modify_target_name
= 1;
3833 if (is_modify_target_name
)
3837 if (! strncmp (argv
[i
], "-Wa,", 4))
3839 else if (! strncmp (argv
[i
], "-Wp,", 4))
3841 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3843 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3845 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3847 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3849 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3851 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3853 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3855 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3857 else if (! strcmp (argv
[i
], "-ftarget-help"))
3859 else if (! strcmp (argv
[i
], "-fhelp"))
3861 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3863 /* Compensate for the +e options to the C++ front-end;
3864 they're there simply for cfront call-compatibility. We do
3865 some magic in default_compilers to pass them down properly.
3866 Note we deliberately start at the `+' here, to avoid passing
3867 -e0 or -e1 down into the linker. */
3868 switches
[n_switches
].part1
= &argv
[i
][0];
3869 switches
[n_switches
].args
= 0;
3870 switches
[n_switches
].live_cond
= SWITCH_OK
;
3871 switches
[n_switches
].validated
= 0;
3874 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3877 /* Split the argument at commas. */
3879 for (j
= 4; argv
[i
][j
]; j
++)
3880 if (argv
[i
][j
] == ',')
3882 infiles
[n_infiles
].language
= "*";
3883 infiles
[n_infiles
++].name
3884 = save_string (argv
[i
] + prev
, j
- prev
);
3887 /* Record the part after the last comma. */
3888 infiles
[n_infiles
].language
= "*";
3889 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3891 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3893 infiles
[n_infiles
].language
= "*";
3894 infiles
[n_infiles
++].name
= argv
[++i
];
3896 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3898 infiles
[n_infiles
].language
= "*";
3899 infiles
[n_infiles
++].name
= argv
[++i
];
3901 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3903 infiles
[n_infiles
].language
= "*";
3904 infiles
[n_infiles
++].name
= argv
[++i
];
3906 else if (strcmp (argv
[i
], "-l") == 0)
3907 { /* POSIX allows separation of -l and the lib arg;
3908 canonicalize by concatenating -l with its arg */
3909 infiles
[n_infiles
].language
= "*";
3910 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3912 else if (strncmp (argv
[i
], "-l", 2) == 0)
3914 infiles
[n_infiles
].language
= "*";
3915 infiles
[n_infiles
++].name
= argv
[i
];
3917 else if (strcmp (argv
[i
], "-specs") == 0)
3919 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3921 else if (strcmp (argv
[i
], "-time") == 0)
3923 else if (strcmp (argv
[i
], "-###") == 0)
3925 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3927 const char *p
= &argv
[i
][1];
3932 if (p
[1] == 0 && i
+ 1 == argc
)
3933 fatal ("argument to `-x' is missing");
3935 spec_lang
= argv
[++i
];
3938 if (! strcmp (spec_lang
, "none"))
3939 /* Suppress the warning if -xnone comes after the last input
3940 file, because alternate command interfaces like g++ might
3941 find it useful to place -xnone after each input file. */
3944 last_language_n_infiles
= n_infiles
;
3947 switches
[n_switches
].part1
= p
;
3948 /* Deal with option arguments in separate argv elements. */
3949 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3950 || WORD_SWITCH_TAKES_ARG (p
))
3953 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3957 /* Count only the option arguments in separate argv elements. */
3958 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3960 if (i
+ n_args
>= argc
)
3961 fatal ("argument to `-%s' is missing", p
);
3962 switches
[n_switches
].args
3963 = xmalloc ((n_args
+ 1) * sizeof(const char *));
3965 switches
[n_switches
].args
[j
++] = argv
[++i
];
3966 /* Null-terminate the vector. */
3967 switches
[n_switches
].args
[j
] = 0;
3969 else if (strchr (switches_need_spaces
, c
))
3971 /* On some systems, ld cannot handle some options without
3972 a space. So split the option from its argument. */
3973 char *part1
= xmalloc (2);
3977 switches
[n_switches
].part1
= part1
;
3978 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
3979 switches
[n_switches
].args
[0] = xstrdup (p
+1);
3980 switches
[n_switches
].args
[1] = 0;
3983 switches
[n_switches
].args
= 0;
3985 switches
[n_switches
].live_cond
= SWITCH_OK
;
3986 switches
[n_switches
].validated
= 0;
3987 switches
[n_switches
].ordering
= 0;
3988 /* These are always valid, since gcc.c itself understands them. */
3989 if (!strcmp (p
, "save-temps")
3990 || !strcmp (p
, "static-libgcc")
3991 || !strcmp (p
, "shared-libgcc")
3992 || !strcmp (p
, "pipe"))
3993 switches
[n_switches
].validated
= 1;
3996 char ch
= switches
[n_switches
].part1
[0];
3998 switches
[n_switches
].validated
= 1;
4004 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4005 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4008 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4010 perror_with_name (argv
[i
]);
4015 infiles
[n_infiles
].language
= spec_lang
;
4016 infiles
[n_infiles
++].name
= argv
[i
];
4021 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4022 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4024 /* Ensure we only invoke each subprocess once. */
4025 if (target_help_flag
|| print_help_list
)
4029 /* Create a dummy input file, so that we can pass --target-help on to
4030 the various sub-processes. */
4031 infiles
[0].language
= "c";
4032 infiles
[0].name
= "help-dummy";
4034 if (target_help_flag
)
4036 switches
[n_switches
].part1
= "--target-help";
4037 switches
[n_switches
].args
= 0;
4038 switches
[n_switches
].live_cond
= SWITCH_OK
;
4039 switches
[n_switches
].validated
= 0;
4044 if (print_help_list
)
4046 switches
[n_switches
].part1
= "--help";
4047 switches
[n_switches
].args
= 0;
4048 switches
[n_switches
].live_cond
= SWITCH_OK
;
4049 switches
[n_switches
].validated
= 0;
4055 switches
[n_switches
].part1
= 0;
4056 infiles
[n_infiles
].name
= 0;
4059 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4060 and place that in the environment. */
4063 set_collect_gcc_options (void)
4068 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4070 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4071 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4074 for (i
= 0; (int) i
< n_switches
; i
++)
4076 const char *const *args
;
4079 obstack_grow (&collect_obstack
, " ", 1);
4083 /* Ignore elided switches. */
4084 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4087 obstack_grow (&collect_obstack
, "'-", 2);
4088 q
= switches
[i
].part1
;
4089 while ((p
= strchr (q
, '\'')))
4091 obstack_grow (&collect_obstack
, q
, p
- q
);
4092 obstack_grow (&collect_obstack
, "'\\''", 4);
4095 obstack_grow (&collect_obstack
, q
, strlen (q
));
4096 obstack_grow (&collect_obstack
, "'", 1);
4098 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4100 obstack_grow (&collect_obstack
, " '", 2);
4102 while ((p
= strchr (q
, '\'')))
4104 obstack_grow (&collect_obstack
, q
, p
- q
);
4105 obstack_grow (&collect_obstack
, "'\\''", 4);
4108 obstack_grow (&collect_obstack
, q
, strlen (q
));
4109 obstack_grow (&collect_obstack
, "'", 1);
4112 obstack_grow (&collect_obstack
, "\0", 1);
4113 putenv (obstack_finish (&collect_obstack
));
4116 /* Process a spec string, accumulating and running commands. */
4118 /* These variables describe the input file name.
4119 input_file_number is the index on outfiles of this file,
4120 so that the output file name can be stored for later use by %o.
4121 input_basename is the start of the part of the input file
4122 sans all directory names, and basename_length is the number
4123 of characters starting there excluding the suffix .c or whatever. */
4125 static const char *input_filename
;
4126 static int input_file_number
;
4127 size_t input_filename_length
;
4128 static int basename_length
;
4129 static int suffixed_basename_length
;
4130 static const char *input_basename
;
4131 static const char *input_suffix
;
4132 static struct stat input_stat
;
4133 static int input_stat_set
;
4135 /* The compiler used to process the current input file. */
4136 static struct compiler
*input_file_compiler
;
4138 /* These are variables used within do_spec and do_spec_1. */
4140 /* Nonzero if an arg has been started and not yet terminated
4141 (with space, tab or newline). */
4142 static int arg_going
;
4144 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4145 is a temporary file name. */
4146 static int delete_this_arg
;
4148 /* Nonzero means %w has been seen; the next arg to be terminated
4149 is the output file name of this compilation. */
4150 static int this_is_output_file
;
4152 /* Nonzero means %s has been seen; the next arg to be terminated
4153 is the name of a library file and we should try the standard
4154 search dirs for it. */
4155 static int this_is_library_file
;
4157 /* Nonzero means that the input of this command is coming from a pipe. */
4158 static int input_from_pipe
;
4160 /* Nonnull means substitute this for any suffix when outputting a switches
4162 static const char *suffix_subst
;
4164 /* Process the spec SPEC and run the commands specified therein.
4165 Returns 0 if the spec is successfully processed; -1 if failed. */
4168 do_spec (const char *spec
)
4172 value
= do_spec_2 (spec
);
4174 /* Force out any unfinished command.
4175 If -pipe, this forces out the last command if it ended in `|'. */
4178 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4181 set_collect_gcc_options ();
4183 if (argbuf_index
> 0)
4191 do_spec_2 (const char *spec
)
4198 delete_this_arg
= 0;
4199 this_is_output_file
= 0;
4200 this_is_library_file
= 0;
4201 input_from_pipe
= 0;
4202 suffix_subst
= NULL
;
4204 result
= do_spec_1 (spec
, 0, NULL
);
4206 /* End any pending argument. */
4209 obstack_1grow (&obstack
, 0);
4210 string
= obstack_finish (&obstack
);
4211 if (this_is_library_file
)
4212 string
= find_file (string
);
4213 store_arg (string
, delete_this_arg
, this_is_output_file
);
4214 if (this_is_output_file
)
4215 outfiles
[input_file_number
] = string
;
4223 /* Process the given spec string and add any new options to the end
4224 of the switches/n_switches array. */
4227 do_option_spec (const char *name
, const char *spec
)
4229 unsigned int i
, value_count
, value_len
;
4230 const char *p
, *q
, *value
;
4231 char *tmp_spec
, *tmp_spec_p
;
4233 if (configure_default_options
[0].name
== NULL
)
4236 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4237 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4239 if (i
== ARRAY_SIZE (configure_default_options
))
4242 value
= configure_default_options
[i
].value
;
4243 value_len
= strlen (value
);
4245 /* Compute the size of the final spec. */
4248 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4254 /* Replace each %(VALUE) by the specified value. */
4255 tmp_spec
= alloca (strlen (spec
) + 1
4256 + value_count
* (value_len
- strlen ("%(VALUE)")));
4257 tmp_spec_p
= tmp_spec
;
4259 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4261 memcpy (tmp_spec_p
, q
, p
- q
);
4262 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4263 memcpy (tmp_spec_p
, value
, value_len
);
4264 tmp_spec_p
+= value_len
;
4265 q
= p
+ strlen ("%(VALUE)");
4267 strcpy (tmp_spec_p
, q
);
4269 do_self_spec (tmp_spec
);
4272 /* Process the given spec string and add any new options to the end
4273 of the switches/n_switches array. */
4276 do_self_spec (const char *spec
)
4279 do_spec_1 (" ", 0, NULL
);
4281 if (argbuf_index
> 0)
4286 n_switches
+= argbuf_index
;
4287 switches
= xrealloc (switches
,
4288 sizeof (struct switchstr
) * (n_switches
+ 1));
4290 switches
[n_switches
] = switches
[first
];
4291 for (i
= 0; i
< argbuf_index
; i
++)
4293 struct switchstr
*sw
;
4295 /* Each switch should start with '-'. */
4296 if (argbuf
[i
][0] != '-')
4299 sw
= &switches
[i
+ first
];
4300 sw
->part1
= &argbuf
[i
][1];
4302 sw
->live_cond
= SWITCH_OK
;
4309 /* Process the sub-spec SPEC as a portion of a larger spec.
4310 This is like processing a whole spec except that we do
4311 not initialize at the beginning and we do not supply a
4312 newline by default at the end.
4313 INSWITCH nonzero means don't process %-sequences in SPEC;
4314 in this case, % is treated as an ordinary character.
4315 This is used while substituting switches.
4316 INSWITCH nonzero also causes SPC not to terminate an argument.
4318 Value is zero unless a line was finished
4319 and the command on that line reported an error. */
4322 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4324 const char *p
= spec
;
4331 /* If substituting a switch, treat all chars like letters.
4332 Otherwise, NL, SPC, TAB and % are special. */
4333 switch (inswitch
? 'a' : c
)
4336 /* End of line: finish any pending argument,
4337 then run the pending command if one has been started. */
4340 obstack_1grow (&obstack
, 0);
4341 string
= obstack_finish (&obstack
);
4342 if (this_is_library_file
)
4343 string
= find_file (string
);
4344 store_arg (string
, delete_this_arg
, this_is_output_file
);
4345 if (this_is_output_file
)
4346 outfiles
[input_file_number
] = string
;
4350 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4352 /* A `|' before the newline means use a pipe here,
4353 but only if -pipe was specified.
4354 Otherwise, execute now and don't pass the `|' as an arg. */
4357 input_from_pipe
= 1;
4364 set_collect_gcc_options ();
4366 if (argbuf_index
> 0)
4372 /* Reinitialize for a new command, and for a new argument. */
4375 delete_this_arg
= 0;
4376 this_is_output_file
= 0;
4377 this_is_library_file
= 0;
4378 input_from_pipe
= 0;
4382 /* End any pending argument. */
4385 obstack_1grow (&obstack
, 0);
4386 string
= obstack_finish (&obstack
);
4387 if (this_is_library_file
)
4388 string
= find_file (string
);
4389 store_arg (string
, delete_this_arg
, this_is_output_file
);
4390 if (this_is_output_file
)
4391 outfiles
[input_file_number
] = string
;
4395 obstack_1grow (&obstack
, c
);
4401 /* Space or tab ends an argument if one is pending. */
4404 obstack_1grow (&obstack
, 0);
4405 string
= obstack_finish (&obstack
);
4406 if (this_is_library_file
)
4407 string
= find_file (string
);
4408 store_arg (string
, delete_this_arg
, this_is_output_file
);
4409 if (this_is_output_file
)
4410 outfiles
[input_file_number
] = string
;
4412 /* Reinitialize for a new argument. */
4414 delete_this_arg
= 0;
4415 this_is_output_file
= 0;
4416 this_is_library_file
= 0;
4423 fatal ("invalid specification! Bug in cc");
4426 obstack_grow (&obstack
, input_basename
, basename_length
);
4431 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4436 delete_this_arg
= 2;
4439 /* Dump out the directories specified with LIBRARY_PATH,
4440 followed by the absolute directories
4441 that we search for startfiles. */
4444 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4445 size_t bufsize
= 100;
4446 char *buffer
= xmalloc (bufsize
);
4449 for (; pl
; pl
= pl
->next
)
4451 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4452 /* Used on systems which record the specified -L dirs
4453 and use them to search for dynamic linking. */
4454 /* Relative directories always come from -B,
4455 and it is better not to use them for searching
4456 at run time. In particular, stage1 loses. */
4457 if (!IS_ABSOLUTE_PATH (pl
->prefix
))
4460 /* Try subdirectory if there is one. */
4461 if (multilib_dir
!= NULL
4462 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4464 const char *multi_dir
;
4466 multi_dir
= pl
->os_multilib
? multilib_os_dir
4468 if (machine_suffix
&& multilib_dir
)
4470 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4472 bufsize
= (strlen (pl
->prefix
)
4473 + strlen (machine_suffix
)) * 2 + 1;
4474 buffer
= xrealloc (buffer
, bufsize
);
4475 strcpy (buffer
, pl
->prefix
);
4476 strcat (buffer
, machine_suffix
);
4477 if (is_directory (buffer
, multilib_dir
, 1))
4479 do_spec_1 ("-L", 0, NULL
);
4480 #ifdef SPACE_AFTER_L_OPTION
4481 do_spec_1 (" ", 0, NULL
);
4483 do_spec_1 (buffer
, 1, NULL
);
4484 do_spec_1 (multilib_dir
, 1, NULL
);
4485 /* Make this a separate argument. */
4486 do_spec_1 (" ", 0, NULL
);
4489 if (!pl
->require_machine_suffix
)
4491 if (is_directory (pl
->prefix
, multi_dir
, 1))
4493 do_spec_1 ("-L", 0, NULL
);
4494 #ifdef SPACE_AFTER_L_OPTION
4495 do_spec_1 (" ", 0, NULL
);
4497 do_spec_1 (pl
->prefix
, 1, NULL
);
4498 do_spec_1 (multi_dir
, 1, NULL
);
4499 /* Make this a separate argument. */
4500 do_spec_1 (" ", 0, NULL
);
4506 if (is_directory (pl
->prefix
, machine_suffix
, 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 /* Remove slash from machine_suffix. */
4514 if (strlen (machine_suffix
) >= bufsize
)
4515 bufsize
= strlen (machine_suffix
) * 2 + 1;
4516 buffer
= xrealloc (buffer
, bufsize
);
4517 strcpy (buffer
, machine_suffix
);
4518 idx
= strlen (buffer
);
4519 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4520 buffer
[idx
- 1] = 0;
4521 do_spec_1 (buffer
, 1, NULL
);
4522 /* Make this a separate argument. */
4523 do_spec_1 (" ", 0, NULL
);
4526 if (!pl
->require_machine_suffix
)
4528 if (is_directory (pl
->prefix
, "", 1))
4530 do_spec_1 ("-L", 0, NULL
);
4531 #ifdef SPACE_AFTER_L_OPTION
4532 do_spec_1 (" ", 0, NULL
);
4534 /* Remove slash from pl->prefix. */
4535 if (strlen (pl
->prefix
) >= bufsize
)
4536 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4537 buffer
= xrealloc (buffer
, bufsize
);
4538 strcpy (buffer
, pl
->prefix
);
4539 idx
= strlen (buffer
);
4540 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4541 buffer
[idx
- 1] = 0;
4542 do_spec_1 (buffer
, 1, NULL
);
4543 /* Make this a separate argument. */
4544 do_spec_1 (" ", 0, NULL
);
4553 /* %efoo means report an error with `foo' as error message
4554 and don't execute any more commands for this file. */
4558 while (*p
!= 0 && *p
!= '\n')
4560 buf
= alloca (p
- q
+ 1);
4561 strncpy (buf
, q
, p
- q
);
4568 /* %nfoo means report a notice with `foo' on stderr. */
4572 while (*p
!= 0 && *p
!= '\n')
4574 buf
= alloca (p
- q
+ 1);
4575 strncpy (buf
, q
, p
- q
);
4577 notice ("%s\n", buf
);
4587 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4588 defined, and it is not a directory, and it is
4589 writable, use it. Otherwise, treat this like any
4590 other temporary file. */
4592 if ((!save_temps_flag
)
4593 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4594 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4596 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4597 strlen (HOST_BIT_BUCKET
));
4598 delete_this_arg
= 0;
4603 goto create_temp_file
;
4607 obstack_1grow (&obstack
, '-');
4608 delete_this_arg
= 0;
4611 /* consume suffix */
4612 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4614 if (p
[0] == '%' && p
[1] == 'O')
4619 goto create_temp_file
;
4623 /* consume suffix */
4624 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4626 if (p
[0] == '%' && p
[1] == 'O')
4631 goto create_temp_file
;
4637 struct temp_name
*t
;
4639 const char *suffix
= p
;
4640 char *saved_suffix
= NULL
;
4642 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4644 suffix_length
= p
- suffix
;
4645 if (p
[0] == '%' && p
[1] == 'O')
4648 /* We don't support extra suffix characters after %O. */
4649 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4651 if (suffix_length
== 0)
4652 suffix
= TARGET_OBJECT_SUFFIX
;
4656 = xmalloc (suffix_length
4657 + strlen (TARGET_OBJECT_SUFFIX
));
4658 strncpy (saved_suffix
, suffix
, suffix_length
);
4659 strcpy (saved_suffix
+ suffix_length
,
4660 TARGET_OBJECT_SUFFIX
);
4662 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4665 /* If the input_filename has the same suffix specified
4666 for the %g, %u, or %U, and -save-temps is specified,
4667 we could end up using that file as an intermediate
4668 thus clobbering the user's source file (.e.g.,
4669 gcc -save-temps foo.s would clobber foo.s with the
4670 output of cpp0). So check for this condition and
4671 generate a temp file as the intermediate. */
4673 if (save_temps_flag
)
4675 temp_filename_length
= basename_length
+ suffix_length
;
4676 temp_filename
= alloca (temp_filename_length
+ 1);
4677 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4678 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4680 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4681 if (strcmp (temp_filename
, input_filename
) != 0)
4683 struct stat st_temp
;
4685 /* Note, set_input() resets input_stat_set to 0. */
4686 if (input_stat_set
== 0)
4688 input_stat_set
= stat (input_filename
, &input_stat
);
4689 if (input_stat_set
>= 0)
4693 /* If we have the stat for the input_filename
4694 and we can do the stat for the temp_filename
4695 then the they could still refer to the same
4696 file if st_dev/st_ino's are the same. */
4698 if (input_stat_set
!= 1
4699 || stat (temp_filename
, &st_temp
) < 0
4700 || input_stat
.st_dev
!= st_temp
.st_dev
4701 || input_stat
.st_ino
!= st_temp
.st_ino
)
4703 temp_filename
= save_string (temp_filename
,
4704 temp_filename_length
+ 1);
4705 obstack_grow (&obstack
, temp_filename
,
4706 temp_filename_length
);
4708 delete_this_arg
= 0;
4714 /* See if we already have an association of %g/%u/%U and
4716 for (t
= temp_names
; t
; t
= t
->next
)
4717 if (t
->length
== suffix_length
4718 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4719 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4722 /* Make a new association if needed. %u and %j
4724 if (t
== 0 || c
== 'u' || c
== 'j')
4728 t
= xmalloc (sizeof (struct temp_name
));
4729 t
->next
= temp_names
;
4732 t
->length
= suffix_length
;
4735 t
->suffix
= saved_suffix
;
4736 saved_suffix
= NULL
;
4739 t
->suffix
= save_string (suffix
, suffix_length
);
4740 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4741 temp_filename
= make_temp_file (t
->suffix
);
4742 temp_filename_length
= strlen (temp_filename
);
4743 t
->filename
= temp_filename
;
4744 t
->filename_length
= temp_filename_length
;
4748 free (saved_suffix
);
4750 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4751 delete_this_arg
= 1;
4759 for (i
= 0; (int) i
< n_infiles
; i
++)
4760 store_arg (infiles
[i
].name
, 0, 0);
4764 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4771 struct prefix_list
*pl
= include_prefixes
.plist
;
4773 if (gcc_exec_prefix
)
4775 do_spec_1 ("-iprefix", 1, NULL
);
4776 /* Make this a separate argument. */
4777 do_spec_1 (" ", 0, NULL
);
4778 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4779 do_spec_1 (" ", 0, NULL
);
4782 if (target_system_root_changed
||
4783 (target_system_root
&& target_sysroot_hdrs_suffix
))
4785 do_spec_1 ("-isysroot", 1, NULL
);
4786 /* Make this a separate argument. */
4787 do_spec_1 (" ", 0, NULL
);
4788 do_spec_1 (target_system_root
, 1, NULL
);
4789 if (target_sysroot_hdrs_suffix
)
4790 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4791 do_spec_1 (" ", 0, NULL
);
4794 for (; pl
; pl
= pl
->next
)
4796 do_spec_1 ("-isystem", 1, NULL
);
4797 /* Make this a separate argument. */
4798 do_spec_1 (" ", 0, NULL
);
4799 do_spec_1 (pl
->prefix
, 1, NULL
);
4800 do_spec_1 (" ", 0, NULL
);
4807 int max
= n_infiles
;
4808 max
+= lang_specific_extra_outfiles
;
4810 for (i
= 0; i
< max
; i
++)
4812 store_arg (outfiles
[i
], 0, 0);
4817 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4822 this_is_library_file
= 1;
4826 outfiles
[input_file_number
] = NULL
;
4830 this_is_output_file
= 1;
4835 int cur_index
= argbuf_index
;
4836 /* Handle the {...} following the %W. */
4839 p
= handle_braces (p
+ 1);
4842 /* End any pending argument. */
4845 obstack_1grow (&obstack
, 0);
4846 string
= obstack_finish (&obstack
);
4847 if (this_is_library_file
)
4848 string
= find_file (string
);
4849 store_arg (string
, delete_this_arg
, this_is_output_file
);
4850 if (this_is_output_file
)
4851 outfiles
[input_file_number
] = string
;
4854 /* If any args were output, mark the last one for deletion
4856 if (argbuf_index
!= cur_index
)
4857 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4861 /* %x{OPTION} records OPTION for %X to output. */
4867 /* Skip past the option value and make a copy. */
4872 string
= save_string (p1
+ 1, p
- p1
- 2);
4874 /* See if we already recorded this option. */
4875 for (i
= 0; i
< n_linker_options
; i
++)
4876 if (! strcmp (string
, linker_options
[i
]))
4882 /* This option is new; add it. */
4883 add_linker_option (string
, strlen (string
));
4887 /* Dump out the options accumulated previously using %x. */
4889 for (i
= 0; i
< n_linker_options
; i
++)
4891 do_spec_1 (linker_options
[i
], 1, NULL
);
4892 /* Make each accumulated option a separate argument. */
4893 do_spec_1 (" ", 0, NULL
);
4897 /* Dump out the options accumulated previously using -Wa,. */
4899 for (i
= 0; i
< n_assembler_options
; i
++)
4901 do_spec_1 (assembler_options
[i
], 1, NULL
);
4902 /* Make each accumulated option a separate argument. */
4903 do_spec_1 (" ", 0, NULL
);
4907 /* Dump out the options accumulated previously using -Wp,. */
4909 for (i
= 0; i
< n_preprocessor_options
; i
++)
4911 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4912 /* Make each accumulated option a separate argument. */
4913 do_spec_1 (" ", 0, NULL
);
4917 /* Here are digits and numbers that just process
4918 a certain constant string as a spec. */
4921 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4927 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4933 value
= do_spec_1 (asm_spec
, 0, NULL
);
4939 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4946 const char *const spec
4947 = (input_file_compiler
->cpp_spec
4948 ? input_file_compiler
->cpp_spec
4950 value
= do_spec_1 (spec
, 0, NULL
);
4957 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4963 value
= do_spec_1 (link_spec
, 0, NULL
);
4969 value
= do_spec_1 (lib_spec
, 0, NULL
);
4975 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4981 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4987 len
= strlen (multilib_dir
);
4988 obstack_blank (&obstack
, len
+ 1);
4989 p
= obstack_next_free (&obstack
) - (len
+ 1);
4992 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4993 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4998 /* We assume there is a directory
4999 separator at the end of this string. */
5000 if (target_system_root
)
5002 obstack_grow (&obstack
, target_system_root
,
5003 strlen (target_system_root
));
5004 if (target_sysroot_suffix
)
5005 obstack_grow (&obstack
, target_sysroot_suffix
,
5006 strlen (target_sysroot_suffix
));
5011 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5016 /* Here we define characters other than letters and digits. */
5019 p
= handle_braces (p
);
5025 p
= handle_spec_function (p
);
5031 obstack_1grow (&obstack
, '%');
5038 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5040 suffix_subst
= save_string (p
- 1, len
+ 1);
5045 /* Henceforth ignore the option(s) matching the pattern
5050 int have_wildcard
= 0;
5053 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5056 if (p
[len
-1] == '*')
5059 for (i
= 0; i
< n_switches
; i
++)
5060 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5061 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5063 switches
[i
].live_cond
= SWITCH_IGNORE
;
5064 switches
[i
].validated
= 1;
5072 if (soft_matched_part
)
5074 do_spec_1 (soft_matched_part
, 1, NULL
);
5075 do_spec_1 (" ", 0, NULL
);
5078 /* Catch the case where a spec string contains something like
5079 '%{foo:%*}'. ie there is no * in the pattern on the left
5080 hand side of the :. */
5081 error ("spec failure: '%%*' has not been initialized by pattern match");
5084 /* Process a string found as the value of a spec given by name.
5085 This feature allows individual machine descriptions
5086 to add and use their own specs.
5087 %[...] modifies -D options the way %P does;
5088 %(...) uses the spec unmodified. */
5090 error ("warning: use of obsolete %%[ operator in specs");
5093 const char *name
= p
;
5094 struct spec_list
*sl
;
5097 /* The string after the S/P is the name of a spec that is to be
5099 while (*p
&& *p
!= ')' && *p
!= ']')
5102 /* See if it's in the list. */
5103 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5104 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5106 name
= *(sl
->ptr_spec
);
5108 notice ("Processing spec %c%s%c, which is '%s'\n",
5109 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5118 value
= do_spec_1 (name
, 0, NULL
);
5124 char *x
= alloca (strlen (name
) * 2 + 1);
5126 const char *y
= name
;
5129 /* Copy all of NAME into BUF, but put __ after
5130 every -D and at the end of each arg. */
5133 if (! strncmp (y
, "-D", 2))
5144 && (*y
== ' ' || *y
== '\t' || *y
== '='
5145 || *y
== '}' || *y
== 0))
5158 value
= do_spec_1 (buf
, 0, NULL
);
5164 /* Discard the closing paren or bracket. */
5171 error ("spec failure: unrecognized spec option '%c'", c
);
5177 /* Backslash: treat next character as ordinary. */
5182 /* Ordinary character: put it into the current argument. */
5183 obstack_1grow (&obstack
, c
);
5187 /* End of string. If we are processing a spec function, we need to
5188 end any pending argument. */
5189 if (processing_spec_function
&& arg_going
)
5191 obstack_1grow (&obstack
, 0);
5192 string
= obstack_finish (&obstack
);
5193 if (this_is_library_file
)
5194 string
= find_file (string
);
5195 store_arg (string
, delete_this_arg
, this_is_output_file
);
5196 if (this_is_output_file
)
5197 outfiles
[input_file_number
] = string
;
5204 /* Look up a spec function. */
5206 static const struct spec_function
*
5207 lookup_spec_function (const char *name
)
5209 static const struct spec_function
* const spec_function_tables
[] =
5211 static_spec_functions
,
5212 lang_specific_spec_functions
,
5214 const struct spec_function
*sf
;
5217 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5219 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5220 if (strcmp (sf
->name
, name
) == 0)
5227 /* Evaluate a spec function. */
5230 eval_spec_function (const char *func
, const char *args
)
5232 const struct spec_function
*sf
;
5233 const char *funcval
;
5235 /* Saved spec processing context. */
5236 int save_argbuf_index
;
5237 int save_argbuf_length
;
5238 const char **save_argbuf
;
5241 int save_delete_this_arg
;
5242 int save_this_is_output_file
;
5243 int save_this_is_library_file
;
5244 int save_input_from_pipe
;
5245 const char *save_suffix_subst
;
5248 sf
= lookup_spec_function (func
);
5250 fatal ("unknown spec function `%s'", func
);
5252 /* Push the spec processing context. */
5253 save_argbuf_index
= argbuf_index
;
5254 save_argbuf_length
= argbuf_length
;
5255 save_argbuf
= argbuf
;
5257 save_arg_going
= arg_going
;
5258 save_delete_this_arg
= delete_this_arg
;
5259 save_this_is_output_file
= this_is_output_file
;
5260 save_this_is_library_file
= this_is_library_file
;
5261 save_input_from_pipe
= input_from_pipe
;
5262 save_suffix_subst
= suffix_subst
;
5264 /* Create a new spec processing context, and build the function
5268 if (do_spec_2 (args
) < 0)
5269 fatal ("error in args to spec function `%s'", func
);
5271 /* argbuf_index is an index for the next argument to be inserted, and
5272 so contains the count of the args already inserted. */
5274 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5276 /* Pop the spec processing context. */
5277 argbuf_index
= save_argbuf_index
;
5278 argbuf_length
= save_argbuf_length
;
5280 argbuf
= save_argbuf
;
5282 arg_going
= save_arg_going
;
5283 delete_this_arg
= save_delete_this_arg
;
5284 this_is_output_file
= save_this_is_output_file
;
5285 this_is_library_file
= save_this_is_library_file
;
5286 input_from_pipe
= save_input_from_pipe
;
5287 suffix_subst
= save_suffix_subst
;
5292 /* Handle a spec function call of the form:
5296 ARGS is processed as a spec in a separate context and split into an
5297 argument vector in the normal fashion. The function returns a string
5298 containing a spec which we then process in the caller's context, or
5299 NULL if no processing is required. */
5302 handle_spec_function (const char *p
)
5305 const char *endp
, *funcval
;
5308 processing_spec_function
++;
5310 /* Get the function name. */
5311 for (endp
= p
; *endp
!= '\0'; endp
++)
5313 if (*endp
== '(') /* ) */
5315 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5316 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5317 fatal ("malformed spec function name");
5319 if (*endp
!= '(') /* ) */
5320 fatal ("no arguments for spec function");
5321 func
= save_string (p
, endp
- p
);
5324 /* Get the arguments. */
5325 for (count
= 0; *endp
!= '\0'; endp
++)
5334 else if (*endp
== '(') /* ) */
5339 fatal ("malformed spec function arguments");
5340 args
= save_string (p
, endp
- p
);
5343 /* p now points to just past the end of the spec function expression. */
5345 funcval
= eval_spec_function (func
, args
);
5346 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5352 processing_spec_function
--;
5357 /* Inline subroutine of handle_braces. Returns true if the current
5358 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5360 input_suffix_matches (const char *atom
, const char *end_atom
)
5362 return (input_suffix
5363 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5364 && input_suffix
[end_atom
- atom
] == '\0');
5367 /* Inline subroutine of handle_braces. Returns true if a switch
5368 matching the atom bracketed by ATOM and END_ATOM appeared on the
5371 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5374 int len
= end_atom
- atom
;
5375 int plen
= starred
? len
: -1;
5377 for (i
= 0; i
< n_switches
; i
++)
5378 if (!strncmp (switches
[i
].part1
, atom
, len
)
5379 && (starred
|| switches
[i
].part1
[len
] == '\0')
5380 && check_live_switch (i
, plen
))
5386 /* Inline subroutine of handle_braces. Mark all of the switches which
5387 match ATOM (extends to END_ATOM; STARRED indicates whether there
5388 was a star after the atom) for later processing. */
5390 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5393 int len
= end_atom
- atom
;
5394 int plen
= starred
? len
: -1;
5396 for (i
= 0; i
< n_switches
; i
++)
5397 if (!strncmp (switches
[i
].part1
, atom
, len
)
5398 && (starred
|| switches
[i
].part1
[len
] == '\0')
5399 && check_live_switch (i
, plen
))
5400 switches
[i
].ordering
= 1;
5403 /* Inline subroutine of handle_braces. Process all the currently
5404 marked switches through give_switch, and clear the marks. */
5406 process_marked_switches (void)
5410 for (i
= 0; i
< n_switches
; i
++)
5411 if (switches
[i
].ordering
== 1)
5413 switches
[i
].ordering
= 0;
5418 /* Handle a %{ ... } construct. P points just inside the leading {.
5419 Returns a pointer one past the end of the brace block, or 0
5420 if we call do_spec_1 and that returns -1. */
5423 handle_braces (const char *p
)
5425 const char *atom
, *end_atom
;
5426 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5433 bool a_must_be_last
= false;
5434 bool ordered_set
= false;
5435 bool disjunct_set
= false;
5436 bool disj_matched
= false;
5437 bool disj_starred
= true;
5438 bool n_way_choice
= false;
5439 bool n_way_matched
= false;
5441 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5448 /* Scan one "atom" (S in the description above of %{}, possibly
5449 with !, ., or * modifiers). */
5450 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5454 p
++, a_is_negated
= true;
5458 p
++, a_is_suffix
= true;
5461 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5462 || *p
== ',' || *p
== '.' || *p
== '@')
5467 p
++, a_is_starred
= 1;
5470 if (*p
== '&' || *p
== '}')
5472 /* Substitute the switch(es) indicated by the current atom. */
5474 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5475 || atom
== end_atom
)
5478 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5481 process_marked_switches ();
5483 else if (*p
== '|' || *p
== ':')
5485 /* Substitute some text if the current atom appears as a switch
5487 disjunct_set
= true;
5491 if (atom
== end_atom
)
5493 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5494 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5497 /* An empty term may appear as the last choice of an
5498 N-way choice set; it means "otherwise". */
5499 a_must_be_last
= true;
5500 disj_matched
= !n_way_matched
;
5501 disj_starred
= false;
5505 if (a_is_suffix
&& a_is_starred
)
5509 disj_starred
= false;
5511 /* Don't bother testing this atom if we already have a
5513 if (!disj_matched
&& !n_way_matched
)
5516 a_matched
= input_suffix_matches (atom
, end_atom
);
5518 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5520 if (a_matched
!= a_is_negated
)
5522 disj_matched
= true;
5524 d_end_atom
= end_atom
;
5531 /* Found the body, that is, the text to substitute if the
5532 current disjunction matches. */
5533 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5534 disj_matched
&& !n_way_matched
);
5538 /* If we have an N-way choice, reset state for the next
5542 n_way_choice
= true;
5543 n_way_matched
|= disj_matched
;
5544 disj_matched
= false;
5545 disj_starred
= true;
5546 d_atom
= d_end_atom
= NULL
;
5553 while (*p
++ != '}');
5560 /* Subroutine of handle_braces. Scan and process a brace substitution body
5561 (X in the description of %{} syntax). P points one past the colon;
5562 ATOM and END_ATOM bracket the first atom which was found to be true
5563 (present) in the current disjunction; STARRED indicates whether all
5564 the atoms in the current disjunction were starred (for syntax validation);
5565 MATCHED indicates whether the disjunction matched or not, and therefore
5566 whether or not the body is to be processed through do_spec_1 or just
5567 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5571 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5572 int starred
, int matched
)
5574 const char *body
, *end_body
;
5575 unsigned int nesting_level
;
5576 bool have_subst
= false;
5578 /* Locate the closing } or ;, honoring nested braces.
5579 Trim trailing whitespace. */
5588 if (!--nesting_level
)
5591 else if (*p
== ';' && nesting_level
== 1)
5593 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5595 else if (*p
== '\0')
5601 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5604 if (have_subst
&& !starred
)
5609 /* Copy the substitution body to permanent storage and execute it.
5610 If have_subst is false, this is a simple matter of running the
5611 body through do_spec_1... */
5612 char *string
= save_string (body
, end_body
- body
);
5615 if (do_spec_1 (string
, 0, NULL
) < 0)
5620 /* ... but if have_subst is true, we have to process the
5621 body once for each matching switch, with %* set to the
5622 variant part of the switch. */
5623 unsigned int hard_match_len
= end_atom
- atom
;
5626 for (i
= 0; i
< n_switches
; i
++)
5627 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5628 && check_live_switch (i
, hard_match_len
))
5630 if (do_spec_1 (string
, 0,
5631 &switches
[i
].part1
[hard_match_len
]) < 0)
5633 /* Pass any arguments this switch has. */
5635 suffix_subst
= NULL
;
5643 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5644 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5645 spec, or -1 if either exact match or %* is used.
5647 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5648 whose value does not begin with "no-" is obsoleted by the same value
5649 with the "no-", similarly for a switch with the "no-" prefix. */
5652 check_live_switch (int switchnum
, int prefix_length
)
5654 const char *name
= switches
[switchnum
].part1
;
5657 /* In the common case of {<at-most-one-letter>*}, a negating
5658 switch would always match, so ignore that case. We will just
5659 send the conflicting switches to the compiler phase. */
5660 if (prefix_length
>= 0 && prefix_length
<= 1)
5663 /* If we already processed this switch and determined if it was
5664 live or not, return our past determination. */
5665 if (switches
[switchnum
].live_cond
!= 0)
5666 return switches
[switchnum
].live_cond
> 0;
5668 /* Now search for duplicate in a manner that depends on the name. */
5672 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5673 if (switches
[i
].part1
[0] == 'O')
5675 switches
[switchnum
].validated
= 1;
5676 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5681 case 'W': case 'f': case 'm':
5682 if (! strncmp (name
+ 1, "no-", 3))
5684 /* We have Xno-YYY, search for XYYY. */
5685 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5686 if (switches
[i
].part1
[0] == name
[0]
5687 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5689 switches
[switchnum
].validated
= 1;
5690 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5696 /* We have XYYY, search for Xno-YYY. */
5697 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5698 if (switches
[i
].part1
[0] == name
[0]
5699 && switches
[i
].part1
[1] == 'n'
5700 && switches
[i
].part1
[2] == 'o'
5701 && switches
[i
].part1
[3] == '-'
5702 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5704 switches
[switchnum
].validated
= 1;
5705 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5712 /* Otherwise the switch is live. */
5713 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5717 /* Pass a switch to the current accumulating command
5718 in the same form that we received it.
5719 SWITCHNUM identifies the switch; it is an index into
5720 the vector of switches gcc received, which is `switches'.
5721 This cannot fail since it never finishes a command line.
5723 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5726 give_switch (int switchnum
, int omit_first_word
)
5728 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5731 if (!omit_first_word
)
5733 do_spec_1 ("-", 0, NULL
);
5734 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5737 if (switches
[switchnum
].args
!= 0)
5740 for (p
= switches
[switchnum
].args
; *p
; p
++)
5742 const char *arg
= *p
;
5744 do_spec_1 (" ", 0, NULL
);
5747 unsigned length
= strlen (arg
);
5750 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5751 if (arg
[length
] == '.')
5753 ((char *)arg
)[length
] = 0;
5757 do_spec_1 (arg
, 1, NULL
);
5759 ((char *)arg
)[length
] = '.';
5760 do_spec_1 (suffix_subst
, 1, NULL
);
5763 do_spec_1 (arg
, 1, NULL
);
5767 do_spec_1 (" ", 0, NULL
);
5768 switches
[switchnum
].validated
= 1;
5771 /* Search for a file named NAME trying various prefixes including the
5772 user's -B prefix and some standard ones.
5773 Return the absolute file name found. If nothing is found, return NAME. */
5776 find_file (const char *name
)
5780 /* Try multilib_dir if it is defined. */
5781 if (multilib_os_dir
!= NULL
)
5783 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5785 /* If we don't find it in the multi library dir, then fall
5786 through and look for it in the normal places. */
5787 if (newname
!= NULL
)
5791 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5792 return newname
? newname
: name
;
5795 /* Determine whether a directory exists. If LINKER, return 0 for
5796 certain fixed names not needed by the linker. If not LINKER, it is
5797 only important to return 0 if the host machine has a small ARG_MAX
5801 is_directory (const char *path1
, const char *path2
, int linker
)
5803 int len1
= strlen (path1
);
5804 int len2
= strlen (path2
);
5805 char *path
= alloca (3 + len1
+ len2
);
5809 #ifndef SMALL_ARG_MAX
5814 /* Construct the path from the two parts. Ensure the string ends with "/.".
5815 The resulting path will be a directory even if the given path is a
5817 memcpy (path
, path1
, len1
);
5818 memcpy (path
+ len1
, path2
, len2
);
5819 cp
= path
+ len1
+ len2
;
5820 if (!IS_DIR_SEPARATOR (cp
[-1]))
5821 *cp
++ = DIR_SEPARATOR
;
5825 /* Exclude directories that the linker is known to search. */
5828 && strcmp (path
, concat (dir_separator_str
, "lib",
5829 dir_separator_str
, ".", NULL
)) == 0)
5831 && strcmp (path
, concat (dir_separator_str
, "usr",
5832 dir_separator_str
, "lib",
5833 dir_separator_str
, ".", NULL
)) == 0)))
5836 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5839 /* Set up the various global variables to indicate that we're processing
5840 the input file named FILENAME. */
5843 set_input (const char *filename
)
5847 input_filename
= filename
;
5848 input_filename_length
= strlen (input_filename
);
5850 input_basename
= input_filename
;
5851 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5852 /* Skip drive name so 'x:foo' is handled properly. */
5853 if (input_basename
[1] == ':')
5854 input_basename
+= 2;
5856 for (p
= input_basename
; *p
; p
++)
5857 if (IS_DIR_SEPARATOR (*p
))
5858 input_basename
= p
+ 1;
5860 /* Find a suffix starting with the last period,
5861 and set basename_length to exclude that suffix. */
5862 basename_length
= strlen (input_basename
);
5863 suffixed_basename_length
= basename_length
;
5864 p
= input_basename
+ basename_length
;
5865 while (p
!= input_basename
&& *p
!= '.')
5867 if (*p
== '.' && p
!= input_basename
)
5869 basename_length
= p
- input_basename
;
5870 input_suffix
= p
+ 1;
5875 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5876 we will need to do a stat on the input_filename. The
5877 INPUT_STAT_SET signals that the stat is needed. */
5881 /* On fatal signals, delete all the temporary files. */
5884 fatal_error (int signum
)
5886 signal (signum
, SIG_DFL
);
5887 delete_failure_queue ();
5888 delete_temp_files ();
5889 /* Get the same signal again, this time not handled,
5890 so its normal effect occurs. */
5891 kill (getpid (), signum
);
5894 extern int main (int, const char *const *);
5897 main (int argc
, const char *const *argv
)
5901 int linker_was_run
= 0;
5902 int num_linker_inputs
= 0;
5903 char *explicit_link_files
;
5906 struct user_specs
*uptr
;
5908 p
= argv
[0] + strlen (argv
[0]);
5909 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5913 xmalloc_set_program_name (programname
);
5915 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5916 /* Perform host dependent initialization when needed. */
5917 GCC_DRIVER_HOST_INITIALIZATION
;
5920 gcc_init_libintl ();
5922 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5923 signal (SIGINT
, fatal_error
);
5925 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5926 signal (SIGHUP
, fatal_error
);
5928 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5929 signal (SIGTERM
, fatal_error
);
5931 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5932 signal (SIGPIPE
, fatal_error
);
5935 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5936 receive the signal. A different setting is inheritable */
5937 signal (SIGCHLD
, SIG_DFL
);
5940 /* Allocate the argument vector. */
5943 obstack_init (&obstack
);
5945 /* Build multilib_select, et. al from the separate lines that make up each
5946 multilib selection. */
5948 const char *const *q
= multilib_raw
;
5951 obstack_init (&multilib_obstack
);
5952 while ((p
= *q
++) != (char *) 0)
5953 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5955 obstack_1grow (&multilib_obstack
, 0);
5956 multilib_select
= obstack_finish (&multilib_obstack
);
5958 q
= multilib_matches_raw
;
5959 while ((p
= *q
++) != (char *) 0)
5960 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5962 obstack_1grow (&multilib_obstack
, 0);
5963 multilib_matches
= obstack_finish (&multilib_obstack
);
5965 q
= multilib_exclusions_raw
;
5966 while ((p
= *q
++) != (char *) 0)
5967 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5969 obstack_1grow (&multilib_obstack
, 0);
5970 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5973 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5976 obstack_1grow (&multilib_obstack
, ' ');
5977 obstack_grow (&multilib_obstack
,
5978 multilib_defaults_raw
[i
],
5979 strlen (multilib_defaults_raw
[i
]));
5983 obstack_1grow (&multilib_obstack
, 0);
5984 multilib_defaults
= obstack_finish (&multilib_obstack
);
5987 /* Set up to remember the pathname of gcc and any options
5988 needed for collect. We use argv[0] instead of programname because
5989 we need the complete pathname. */
5990 obstack_init (&collect_obstack
);
5991 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5992 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5993 putenv (obstack_finish (&collect_obstack
));
5995 #ifdef INIT_ENVIRONMENT
5996 /* Set up any other necessary machine specific environment variables. */
5997 putenv (INIT_ENVIRONMENT
);
6000 /* Make a table of what switches there are (switches, n_switches).
6001 Make a table of specified input files (infiles, n_infiles).
6002 Decode switches that are handled locally. */
6004 process_command (argc
, argv
);
6006 /* Initialize the vector of specs to just the default.
6007 This means one element containing 0s, as a terminator. */
6009 compilers
= xmalloc (sizeof default_compilers
);
6010 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6011 n_compilers
= n_default_compilers
;
6013 /* Read specs from a file if there is one. */
6015 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6016 spec_version
, dir_separator_str
, NULL
);
6017 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6019 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6020 /* Read the specs file unless it is a default one. */
6021 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6022 read_specs (specs_file
, TRUE
);
6026 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6027 for any override of as, ld and libraries. */
6028 specs_file
= alloca (strlen (standard_exec_prefix
)
6029 + strlen (just_machine_suffix
) + sizeof ("specs"));
6031 strcpy (specs_file
, standard_exec_prefix
);
6032 strcat (specs_file
, just_machine_suffix
);
6033 strcat (specs_file
, "specs");
6034 if (access (specs_file
, R_OK
) == 0)
6035 read_specs (specs_file
, TRUE
);
6037 /* Process any configure-time defaults specified for the command line
6038 options, via OPTION_DEFAULT_SPECS. */
6039 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6040 do_option_spec (option_default_specs
[i
].name
,
6041 option_default_specs
[i
].spec
);
6043 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6044 of the command line. */
6046 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6047 do_self_spec (driver_self_specs
[i
]);
6049 /* If not cross-compiling, look for executables in the standard
6051 if (*cross_compile
== '0')
6053 if (*md_exec_prefix
)
6055 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6056 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6060 /* Process sysroot_suffix_spec. */
6061 if (*sysroot_suffix_spec
!= 0
6062 && do_spec_2 (sysroot_suffix_spec
) == 0)
6064 if (argbuf_index
> 1)
6065 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6066 else if (argbuf_index
== 1)
6067 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6070 /* Process sysroot_hdrs_suffix_spec. */
6071 if (*sysroot_hdrs_suffix_spec
!= 0
6072 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6074 if (argbuf_index
> 1)
6075 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6076 else if (argbuf_index
== 1)
6077 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6080 /* Look for startfiles in the standard places. */
6081 if (*startfile_prefix_spec
!= 0
6082 && do_spec_2 (startfile_prefix_spec
) == 0
6083 && do_spec_1 (" ", 0, NULL
) == 0)
6086 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6087 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6088 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6090 /* We should eventually get rid of all these and stick to
6091 startfile_prefix_spec exclusively. */
6092 else if (*cross_compile
== '0' || target_system_root
)
6094 if (*md_exec_prefix
)
6095 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6096 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6098 if (*md_startfile_prefix
)
6099 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6100 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6102 if (*md_startfile_prefix_1
)
6103 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6104 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6106 /* If standard_startfile_prefix is relative, base it on
6107 standard_exec_prefix. This lets us move the installed tree
6108 as a unit. If GCC_EXEC_PREFIX is defined, base
6109 standard_startfile_prefix on that as well.
6111 If the prefix is relative, only search it for native compilers;
6112 otherwise we will search a directory containing host libraries. */
6113 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6114 add_sysrooted_prefix (&startfile_prefixes
,
6115 standard_startfile_prefix
, "BINUTILS",
6116 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6117 else if (*cross_compile
== '0')
6119 if (gcc_exec_prefix
)
6120 add_prefix (&startfile_prefixes
,
6121 concat (gcc_exec_prefix
, machine_suffix
,
6122 standard_startfile_prefix
, NULL
),
6123 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6124 add_prefix (&startfile_prefixes
,
6125 concat (standard_exec_prefix
,
6127 standard_startfile_prefix
, NULL
),
6128 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6131 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6132 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6133 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6134 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6135 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6136 add_prefix (&startfile_prefixes
, "./", NULL
,
6137 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6141 /* Process any user specified specs in the order given on the command
6143 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6145 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6147 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6150 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6151 if (gcc_exec_prefix
)
6152 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6153 spec_version
, dir_separator_str
, NULL
);
6155 /* Now we have the specs.
6156 Set the `valid' bits for switches that match anything in any spec. */
6158 validate_all_switches ();
6160 /* Now that we have the switches and the specs, set
6161 the subdirectory based on the options. */
6162 set_multilib_dir ();
6164 /* Warn about any switches that no pass was interested in. */
6166 for (i
= 0; (int) i
< n_switches
; i
++)
6167 if (! switches
[i
].validated
)
6168 error ("unrecognized option `-%s'", switches
[i
].part1
);
6170 /* Obey some of the options. */
6172 if (print_search_dirs
)
6174 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6175 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6176 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6180 if (print_file_name
)
6182 printf ("%s\n", find_file (print_file_name
));
6186 if (print_prog_name
)
6188 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6189 printf ("%s\n", (newname
? newname
: print_prog_name
));
6193 if (print_multi_lib
)
6195 print_multilib_info ();
6199 if (print_multi_directory
)
6201 if (multilib_dir
== NULL
)
6204 printf ("%s\n", multilib_dir
);
6208 if (print_multi_os_directory
)
6210 if (multilib_os_dir
== NULL
)
6213 printf ("%s\n", multilib_os_dir
);
6217 if (target_help_flag
)
6219 /* Print if any target specific options. */
6221 /* We do not exit here. Instead we have created a fake input file
6222 called 'target-dummy' which needs to be compiled, and we pass this
6223 on to the various sub-processes, along with the --target-help
6227 if (print_help_list
)
6233 printf (_("\nFor bug reporting instructions, please see:\n"));
6234 printf ("%s.\n", bug_report_url
);
6239 /* We do not exit here. Instead we have created a fake input file
6240 called 'help-dummy' which needs to be compiled, and we pass this
6241 on the various sub-processes, along with the --help switch. */
6249 notice ("Configured with: %s\n", configuration_arguments
);
6251 #ifdef THREAD_MODEL_SPEC
6252 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6253 but there's no point in doing all this processing just to get
6254 thread_model back. */
6255 obstack_init (&obstack
);
6256 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6257 obstack_1grow (&obstack
, '\0');
6258 thrmod
= obstack_finish (&obstack
);
6260 thrmod
= thread_model
;
6263 notice ("Thread model: %s\n", thrmod
);
6265 /* compiler_version is truncated at the first space when initialized
6266 from version string, so truncate version_string at the first space
6267 before comparing. */
6268 for (n
= 0; version_string
[n
]; n
++)
6269 if (version_string
[n
] == ' ')
6272 if (! strncmp (version_string
, compiler_version
, n
)
6273 && compiler_version
[n
] == 0)
6274 notice ("gcc version %s\n", version_string
);
6276 notice ("gcc driver version %s executing gcc version %s\n",
6277 version_string
, compiler_version
);
6283 if (n_infiles
== added_libraries
)
6284 fatal ("no input files");
6286 /* Make a place to record the compiler output file names
6287 that correspond to the input files. */
6290 i
+= lang_specific_extra_outfiles
;
6291 outfiles
= xcalloc (i
, sizeof (char *));
6293 /* Record which files were specified explicitly as link input. */
6295 explicit_link_files
= xcalloc (1, n_infiles
);
6299 int lang_n_infiles
= 0;
6300 for (i
= 0; (int) i
< n_infiles
; i
++)
6302 const char *name
= infiles
[i
].name
;
6303 struct compiler
*compiler
6304 = lookup_compiler (name
, strlen (name
), infiles
[i
].language
);
6305 if (compiler
== NULL
)
6306 error ("%s: linker input file unused because linking not done",
6308 else if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
)
6309 fatal ("cannot specify -o with -c or -S and multiple languages");
6313 input_file_compiler
= compiler
;
6318 for (i
= 0; (int) i
< (combine_inputs
? 1 : n_infiles
); i
++)
6320 int this_file_error
= 0;
6322 /* Tell do_spec what to substitute for %i. */
6324 input_file_number
= i
;
6325 set_input (infiles
[i
].name
);
6327 /* Use the same thing in %o, unless cp->spec says otherwise. */
6329 outfiles
[i
] = input_filename
;
6331 /* Figure out which compiler from the file's suffix. */
6333 if (! combine_inputs
)
6335 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6336 infiles
[i
].language
);
6338 if (input_file_compiler
)
6340 /* Ok, we found an applicable compiler. Run its spec. */
6342 if (input_file_compiler
->spec
[0] == '#')
6344 error ("%s: %s compiler not installed on this system",
6345 input_filename
, &input_file_compiler
->spec
[1]);
6346 this_file_error
= 1;
6350 value
= do_spec (input_file_compiler
->spec
);
6352 this_file_error
= 1;
6356 /* If this file's name does not contain a recognized suffix,
6357 record it as explicit linker input. */
6360 explicit_link_files
[i
] = 1;
6362 /* Clear the delete-on-failure queue, deleting the files in it
6363 if this compilation failed. */
6365 if (this_file_error
)
6367 delete_failure_queue ();
6370 /* If this compilation succeeded, don't delete those files later. */
6371 clear_failure_queue ();
6374 /* Reset the output file name to the first input file name, for use
6375 with %b in LINK_SPEC on a target that prefers not to emit a.out
6378 set_input (infiles
[0].name
);
6380 if (error_count
== 0)
6382 /* Make sure INPUT_FILE_NUMBER points to first available open
6384 input_file_number
= n_infiles
;
6385 if (lang_specific_pre_link ())
6389 /* Determine if there are any linker input files. */
6390 num_linker_inputs
= 0;
6391 for (i
= 0; (int) i
< n_infiles
; i
++)
6392 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6393 num_linker_inputs
++;
6395 /* Run ld to link all the compiler output files. */
6397 if (num_linker_inputs
> 0 && error_count
== 0)
6399 int tmp
= execution_count
;
6401 /* We'll use ld if we can't find collect2. */
6402 if (! strcmp (linker_name_spec
, "collect2"))
6404 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6406 linker_name_spec
= "ld";
6408 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6410 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6411 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6413 value
= do_spec (link_command_spec
);
6416 linker_was_run
= (tmp
!= execution_count
);
6419 /* If options said don't run linker,
6420 complain about input files to be given to the linker. */
6422 if (! linker_was_run
&& error_count
== 0)
6423 for (i
= 0; (int) i
< n_infiles
; i
++)
6424 if (explicit_link_files
[i
])
6425 error ("%s: linker input file unused because linking not done",
6428 /* Delete some or all of the temporary files we made. */
6431 delete_failure_queue ();
6432 delete_temp_files ();
6434 if (print_help_list
)
6436 printf (("\nFor bug reporting instructions, please see:\n"));
6437 printf ("%s\n", bug_report_url
);
6440 return (signal_count
!= 0 ? 2
6441 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6445 /* Find the proper compilation spec for the file name NAME,
6446 whose length is LENGTH. LANGUAGE is the specified language,
6447 or 0 if this file is to be passed to the linker. */
6449 static struct compiler
*
6450 lookup_compiler (const char *name
, size_t length
, const char *language
)
6452 struct compiler
*cp
;
6454 /* If this was specified by the user to be a linker input, indicate that. */
6455 if (language
!= 0 && language
[0] == '*')
6458 /* Otherwise, look for the language, if one is spec'd. */
6461 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6462 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6465 error ("language %s not recognized", language
);
6469 /* Look for a suffix. */
6470 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6472 if (/* The suffix `-' matches only the file name `-'. */
6473 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6474 || (strlen (cp
->suffix
) < length
6475 /* See if the suffix matches the end of NAME. */
6476 && !strcmp (cp
->suffix
,
6477 name
+ length
- strlen (cp
->suffix
))
6482 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6483 /* look again, but case-insensitively this time. */
6485 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6487 if (/* The suffix `-' matches only the file name `-'. */
6488 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6489 || (strlen (cp
->suffix
) < length
6490 /* See if the suffix matches the end of NAME. */
6491 && ((!strcmp (cp
->suffix
,
6492 name
+ length
- strlen (cp
->suffix
))
6493 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6494 && !strcasecmp (cp
->suffix
,
6495 name
+ length
- strlen (cp
->suffix
)))
6501 if (cp
>= compilers
)
6503 if (cp
->spec
[0] != '@')
6504 /* A non-alias entry: return it. */
6507 /* An alias entry maps a suffix to a language.
6508 Search for the language; pass 0 for NAME and LENGTH
6509 to avoid infinite recursion if language not found. */
6510 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6516 save_string (const char *s
, int len
)
6518 char *result
= xmalloc (len
+ 1);
6520 memcpy (result
, s
, len
);
6526 pfatal_with_name (const char *name
)
6528 perror_with_name (name
);
6529 delete_temp_files ();
6534 perror_with_name (const char *name
)
6536 error ("%s: %s", name
, xstrerror (errno
));
6540 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6544 int save_errno
= errno
;
6546 /* Space for trailing '\0' is in %s. */
6547 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6548 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6554 pfatal_with_name (errmsg_fmt
);
6557 /* Output an error message and exit. */
6562 fatal ("internal gcc abort");
6565 /* Output an error message and exit. */
6568 fatal (const char *msgid
, ...)
6572 va_start (ap
, msgid
);
6574 fprintf (stderr
, "%s: ", programname
);
6575 vfprintf (stderr
, _(msgid
), ap
);
6577 fprintf (stderr
, "\n");
6578 delete_temp_files ();
6583 error (const char *msgid
, ...)
6587 va_start (ap
, msgid
);
6588 fprintf (stderr
, "%s: ", programname
);
6589 vfprintf (stderr
, _(msgid
), ap
);
6592 fprintf (stderr
, "\n");
6596 notice (const char *msgid
, ...)
6600 va_start (ap
, msgid
);
6601 vfprintf (stderr
, _(msgid
), ap
);
6606 validate_switches_from_spec (const char *spec
)
6608 const char *p
= spec
;
6611 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6612 /* We have a switch spec. */
6613 p
= validate_switches (p
+ 1);
6617 validate_all_switches (void)
6619 struct compiler
*comp
;
6620 struct spec_list
*spec
;
6622 for (comp
= compilers
; comp
->spec
; comp
++)
6623 validate_switches_from_spec (comp
->spec
);
6625 /* Look through the linked list of specs read from the specs file. */
6626 for (spec
= specs
; spec
; spec
= spec
->next
)
6627 validate_switches_from_spec (*spec
->ptr_spec
);
6629 validate_switches_from_spec (link_command_spec
);
6632 /* Look at the switch-name that comes after START
6633 and mark as valid all supplied switches that match it. */
6636 validate_switches (const char *start
)
6638 const char *p
= start
;
6642 bool suffix
= false;
6643 bool starred
= false;
6645 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6658 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6659 || *p
== ',' || *p
== '.' || *p
== '@')
6664 starred
= true, p
++;
6670 /* Mark all matching switches as valid. */
6671 for (i
= 0; i
< n_switches
; i
++)
6672 if (!strncmp (switches
[i
].part1
, atom
, len
)
6673 && (starred
|| switches
[i
].part1
[len
] == 0))
6674 switches
[i
].validated
= 1;
6678 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6681 if (*p
&& p
[-1] == ':')
6683 while (*p
&& *p
!= ';' && *p
!= '}')
6688 if (*p
== '{' || *p
== '<')
6689 p
= validate_switches (p
+1);
6690 else if (p
[0] == 'W' && p
[1] == '{')
6691 p
= validate_switches (p
+2);
6698 if (*p
&& p
[-1] == ';')
6712 static struct mdswitchstr
*mdswitches
;
6713 static int n_mdswitches
;
6715 /* Check whether a particular argument was used. The first time we
6716 canonicalize the switches to keep only the ones we care about. */
6719 used_arg (const char *p
, int len
)
6724 const char *replace
;
6729 static struct mswitchstr
*mswitches
;
6730 static int n_mswitches
;
6735 struct mswitchstr
*matches
;
6739 /* Break multilib_matches into the component strings of string
6740 and replacement string. */
6741 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6745 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6747 q
= multilib_matches
;
6757 matches
[i
].len
= q
- matches
[i
].str
;
6759 matches
[i
].replace
= ++q
;
6760 while (*q
!= ';' && *q
!= '\0')
6766 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6772 /* Now build a list of the replacement string for switches that we care
6773 about. Make sure we allocate at least one entry. This prevents
6774 xmalloc from calling fatal, and prevents us from re-executing this
6777 = xmalloc (sizeof (struct mswitchstr
)
6778 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6779 for (i
= 0; i
< n_switches
; i
++)
6781 int xlen
= strlen (switches
[i
].part1
);
6782 for (j
= 0; j
< cnt
; j
++)
6783 if (xlen
== matches
[j
].len
6784 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6786 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6787 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6788 mswitches
[n_mswitches
].replace
= (char *) 0;
6789 mswitches
[n_mswitches
].rep_len
= 0;
6795 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6796 on the command line nor any options mutually incompatible with
6798 for (i
= 0; i
< n_mdswitches
; i
++)
6802 for (q
= multilib_options
; *q
!= '\0'; q
++)
6808 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6809 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6811 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6818 if (*q
!= ' ' && *q
!= '\0')
6820 while (*r
!= ' ' && *r
!= '\0')
6823 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6826 if (used_arg (r
, q
- r
))
6831 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6832 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6833 mswitches
[n_mswitches
].replace
= (char *) 0;
6834 mswitches
[n_mswitches
].rep_len
= 0;
6847 for (i
= 0; i
< n_mswitches
; i
++)
6848 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6855 default_arg (const char *p
, int len
)
6859 for (i
= 0; i
< n_mdswitches
; i
++)
6860 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
6866 /* Work out the subdirectory to use based on the options. The format of
6867 multilib_select is a list of elements. Each element is a subdirectory
6868 name followed by a list of options followed by a semicolon. The format
6869 of multilib_exclusions is the same, but without the preceding
6870 directory. First gcc will check the exclusions, if none of the options
6871 beginning with an exclamation point are present, and all of the other
6872 options are present, then we will ignore this completely. Passing
6873 that, gcc will consider each multilib_select in turn using the same
6874 rules for matching the options. If a match is found, that subdirectory
6878 set_multilib_dir (void)
6881 unsigned int this_path_len
;
6882 const char *this_path
, *this_arg
;
6883 const char *start
, *end
;
6885 int ok
, ndfltok
, first
;
6888 start
= multilib_defaults
;
6889 while (*start
== ' ' || *start
== '\t')
6891 while (*start
!= '\0')
6894 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
6896 while (*start
== ' ' || *start
== '\t')
6904 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
6905 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6907 while (*start
== ' ' || *start
== '\t')
6913 for (end
= start
+ 1;
6914 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6917 obstack_grow (&multilib_obstack
, start
, end
- start
);
6918 obstack_1grow (&multilib_obstack
, 0);
6919 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
6920 mdswitches
[i
++].len
= end
- start
;
6927 p
= multilib_exclusions
;
6930 /* Ignore newlines. */
6937 /* Check the arguments. */
6951 while (*p
!= ' ' && *p
!= ';')
6958 if (*this_arg
!= '!')
6966 ok
= used_arg (this_arg
, p
- this_arg
);
6981 p
= multilib_select
;
6984 /* Ignore newlines. */
6991 /* Get the initial path. */
6999 this_path_len
= p
- this_path
;
7001 /* Check the arguments. */
7017 while (*p
!= ' ' && *p
!= ';')
7024 if (*this_arg
!= '!')
7032 /* If this is a default argument, we can just ignore it.
7033 This is true even if this_arg begins with '!'. Beginning
7034 with '!' does not mean that this argument is necessarily
7035 inappropriate for this library: it merely means that
7036 there is a more specific library which uses this
7037 argument. If this argument is a default, we need not
7038 consider that more specific library. */
7039 ok
= used_arg (this_arg
, p
- this_arg
);
7046 if (default_arg (this_arg
, p
- this_arg
))
7055 if (this_path_len
!= 1
7056 || this_path
[0] != '.')
7058 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7061 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7062 new_multilib_dir
[this_path_len
] = '\0';
7063 q
= strchr (new_multilib_dir
, ':');
7066 multilib_dir
= new_multilib_dir
;
7073 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7075 while (q
< end
&& *q
!= ':')
7079 char *new_multilib_os_dir
= xmalloc (end
- q
);
7080 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7081 new_multilib_os_dir
[end
- q
- 1] = '\0';
7082 multilib_os_dir
= new_multilib_os_dir
;
7090 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7091 && strcmp (multilib_os_dir
, ".") == 0)
7093 free ((char *) multilib_os_dir
);
7094 multilib_os_dir
= NULL
;
7096 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7097 multilib_os_dir
= multilib_dir
;
7100 /* Print out the multiple library subdirectory selection
7101 information. This prints out a series of lines. Each line looks
7102 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7103 required. Only the desired options are printed out, the negative
7104 matches. The options are print without a leading dash. There are
7105 no spaces to make it easy to use the information in the shell.
7106 Each subdirectory is printed only once. This assumes the ordering
7107 generated by the genmultilib script. Also, we leave out ones that match
7111 print_multilib_info (void)
7113 const char *p
= multilib_select
;
7114 const char *last_path
= 0, *this_path
;
7116 unsigned int last_path_len
= 0;
7121 /* Ignore newlines. */
7128 /* Get the initial path. */
7137 /* When --disable-multilib was used but target defines
7138 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7139 to find multilib_os_dir, so skip them from output. */
7140 if (this_path
[0] == '.' && this_path
[1] == ':')
7143 /* Check for matches with the multilib_exclusions. We don't bother
7144 with the '!' in either list. If any of the exclusion rules match
7145 all of its options with the select rule, we skip it. */
7147 const char *e
= multilib_exclusions
;
7148 const char *this_arg
;
7153 /* Ignore newlines. */
7160 /* Check the arguments. */
7177 while (*e
!= ' ' && *e
!= ';')
7188 int len
= e
- this_arg
;
7195 while (*q
!= ' ' && *q
!= ';')
7202 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7203 default_arg (this_arg
, e
- this_arg
))
7233 /* If this is a duplicate, skip it. */
7234 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7235 && ! strncmp (last_path
, this_path
, last_path_len
));
7237 last_path
= this_path
;
7238 last_path_len
= p
- this_path
;
7241 /* If this directory requires any default arguments, we can skip
7242 it. We will already have printed a directory identical to
7243 this one which does not require that default argument. */
7261 while (*q
!= ' ' && *q
!= ';')
7269 && default_arg (arg
, q
- arg
))
7284 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7303 use_arg
= *p
!= '!';
7308 while (*p
!= ' ' && *p
!= ';')
7323 /* If there are extra options, print them now. */
7324 if (multilib_extra
&& *multilib_extra
)
7326 int print_at
= TRUE
;
7329 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7350 /* if-exists built-in spec function.
7352 Checks to see if the file specified by the absolute pathname in
7353 ARGS exists. Returns that pathname if found.
7355 The usual use for this function is to check for a library file
7356 (whose name has been expanded with %s). */
7359 if_exists_spec_function (int argc
, const char **argv
)
7361 /* Must have only one argument. */
7362 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7368 /* if-exists-else built-in spec function.
7370 This is like if-exists, but takes an additional argument which
7371 is returned if the first argument does not exist. */
7374 if_exists_else_spec_function (int argc
, const char **argv
)
7376 /* Must have exactly two arguments. */
7380 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))