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 {"--time", "-time", 0},
1072 {"--trace-includes", "-H", 0},
1073 {"--traditional", "-traditional", 0},
1074 {"--traditional-cpp", "-traditional-cpp", 0},
1075 {"--trigraphs", "-trigraphs", 0},
1076 {"--undefine-macro", "-U", "aj"},
1077 {"--user-dependencies", "-MM", 0},
1078 {"--verbose", "-v", 0},
1079 {"--warn-", "-W", "*j"},
1080 {"--write-dependencies", "-MD", 0},
1081 {"--write-user-dependencies", "-MMD", 0},
1086 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1087 static const struct {
1088 const char *const option_found
;
1089 const char *const replacements
;
1090 } target_option_translations
[] =
1092 TARGET_OPTION_TRANSLATE_TABLE
,
1097 /* Translate the options described by *ARGCP and *ARGVP.
1098 Make a new vector and store it back in *ARGVP,
1099 and store its length in *ARGVC. */
1102 translate_options (int *argcp
, const char *const **argvp
)
1106 const char *const *argv
= *argvp
;
1107 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1108 const char **newv
= xmalloc (newvsize
);
1112 newv
[newindex
++] = argv
[i
++];
1116 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1120 target_option_translations
[tott_idx
].option_found
;
1123 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1130 for (sp
= target_option_translations
[tott_idx
].replacements
;
1137 newvsize
+= spaces
* sizeof (const char *);
1138 newv
= xrealloc (newv
, newvsize
);
1140 sp
= target_option_translations
[tott_idx
].replacements
;
1149 newv
[newindex
++] = np
;
1150 while (*np
!= ' ' && *np
)
1161 if (target_option_translations
[tott_idx
].option_found
)
1165 /* Translate -- options. */
1166 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1169 /* Find a mapping that applies to this option. */
1170 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1172 size_t optlen
= strlen (option_map
[j
].name
);
1173 size_t arglen
= strlen (argv
[i
]);
1174 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1175 const char *arginfo
= option_map
[j
].arg_info
;
1180 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1182 const char *arg
= 0;
1184 if (arglen
< optlen
)
1187 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1188 if (strlen (option_map
[k
].name
) >= arglen
1189 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1191 error ("ambiguous abbreviation %s", argv
[i
]);
1195 if (k
!= ARRAY_SIZE (option_map
))
1199 if (arglen
> optlen
)
1201 /* If the option has an argument, accept that. */
1202 if (argv
[i
][optlen
] == '=')
1203 arg
= argv
[i
] + optlen
+ 1;
1205 /* If this mapping requires extra text at end of name,
1206 accept that as "argument". */
1207 else if (strchr (arginfo
, '*') != 0)
1208 arg
= argv
[i
] + optlen
;
1210 /* Otherwise, extra text at end means mismatch.
1211 Try other mappings. */
1216 else if (strchr (arginfo
, '*') != 0)
1218 error ("incomplete `%s' option", option_map
[j
].name
);
1222 /* Handle arguments. */
1223 if (strchr (arginfo
, 'a') != 0)
1229 error ("missing argument to `%s' option",
1230 option_map
[j
].name
);
1237 else if (strchr (arginfo
, '*') != 0)
1239 else if (strchr (arginfo
, 'o') == 0)
1242 error ("extraneous argument to `%s' option",
1243 option_map
[j
].name
);
1247 /* Store the translation as one argv elt or as two. */
1248 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1249 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1253 newv
[newindex
++] = option_map
[j
].equivalent
;
1254 newv
[newindex
++] = arg
;
1257 newv
[newindex
++] = option_map
[j
].equivalent
;
1265 /* Handle old-fashioned options--just copy them through,
1266 with their arguments. */
1267 else if (argv
[i
][0] == '-')
1269 const char *p
= argv
[i
] + 1;
1273 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1274 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1275 else if (WORD_SWITCH_TAKES_ARG (p
))
1276 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1277 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1280 else if (! strcmp (p
, "Xlinker"))
1282 else if (! strcmp (p
, "Xpreprocessor"))
1284 else if (! strcmp (p
, "Xassembler"))
1287 /* Watch out for an option at the end of the command line that
1288 is missing arguments, and avoid skipping past the end of the
1290 if (nskip
+ i
> argc
)
1295 newv
[newindex
++] = argv
[i
++];
1300 /* Ordinary operands, or +e options. */
1301 newv
[newindex
++] = argv
[i
++];
1311 skip_whitespace (char *p
)
1315 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1316 be considered whitespace. */
1317 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1319 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1333 /* Structures to keep track of prefixes to try when looking for files. */
1337 const char *prefix
; /* String to prepend to the path. */
1338 struct prefix_list
*next
; /* Next in linked list. */
1339 int require_machine_suffix
; /* Don't use without machine_suffix. */
1340 /* 2 means try both machine_suffix and just_machine_suffix. */
1341 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1342 int priority
; /* Sort key - priority within list. */
1343 int os_multilib
; /* 1 if OS multilib scheme should be used,
1344 0 for GCC multilib scheme. */
1349 struct prefix_list
*plist
; /* List of prefixes to try */
1350 int max_len
; /* Max length of a prefix in PLIST */
1351 const char *name
; /* Name of this list (used in config stuff) */
1354 /* List of prefixes to try when looking for executables. */
1356 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1358 /* List of prefixes to try when looking for startup (crt0) files. */
1360 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1362 /* List of prefixes to try when looking for include files. */
1364 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1366 /* Suffix to attach to directories searched for commands.
1367 This looks like `MACHINE/VERSION/'. */
1369 static const char *machine_suffix
= 0;
1371 /* Suffix to attach to directories searched for commands.
1372 This is just `MACHINE/'. */
1374 static const char *just_machine_suffix
= 0;
1376 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1378 static const char *gcc_exec_prefix
;
1380 /* Adjusted value of standard_libexec_prefix. */
1382 static const char *gcc_libexec_prefix
;
1384 /* Default prefixes to attach to command names. */
1386 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1387 #undef MD_EXEC_PREFIX
1388 #undef MD_STARTFILE_PREFIX
1389 #undef MD_STARTFILE_PREFIX_1
1392 /* If no prefixes defined, use the null string, which will disable them. */
1393 #ifndef MD_EXEC_PREFIX
1394 #define MD_EXEC_PREFIX ""
1396 #ifndef MD_STARTFILE_PREFIX
1397 #define MD_STARTFILE_PREFIX ""
1399 #ifndef MD_STARTFILE_PREFIX_1
1400 #define MD_STARTFILE_PREFIX_1 ""
1403 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1404 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1405 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1406 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1408 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1409 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1410 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1411 static const char *const standard_startfile_prefix_1
= "/lib/";
1412 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1414 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1415 static const char *tooldir_prefix
;
1417 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1419 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1421 /* Subdirectory to use for locating libraries. Set by
1422 set_multilib_dir based on the compilation options. */
1424 static const char *multilib_dir
;
1426 /* Subdirectory to use for locating libraries in OS conventions. Set by
1427 set_multilib_dir based on the compilation options. */
1429 static const char *multilib_os_dir
;
1431 /* Structure to keep track of the specs that have been defined so far.
1432 These are accessed using %(specname) or %[specname] in a compiler
1437 /* The following 2 fields must be first */
1438 /* to allow EXTRA_SPECS to be initialized */
1439 const char *name
; /* name of the spec. */
1440 const char *ptr
; /* available ptr if no static pointer */
1442 /* The following fields are not initialized */
1443 /* by EXTRA_SPECS */
1444 const char **ptr_spec
; /* pointer to the spec itself. */
1445 struct spec_list
*next
; /* Next spec in linked list. */
1446 int name_len
; /* length of the name */
1447 int alloc_p
; /* whether string was allocated */
1450 #define INIT_STATIC_SPEC(NAME,PTR) \
1451 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1453 /* List of statically defined specs. */
1454 static struct spec_list static_specs
[] =
1456 INIT_STATIC_SPEC ("asm", &asm_spec
),
1457 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1458 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1459 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1460 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1461 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1462 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1463 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1464 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1465 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1466 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1467 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1468 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1469 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1470 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1471 INIT_STATIC_SPEC ("link", &link_spec
),
1472 INIT_STATIC_SPEC ("lib", &lib_spec
),
1473 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1474 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1475 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1476 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1477 INIT_STATIC_SPEC ("version", &compiler_version
),
1478 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1479 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1480 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1481 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1482 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1483 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1484 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1485 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1486 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1487 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1488 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1489 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1490 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1491 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1494 #ifdef EXTRA_SPECS /* additional specs needed */
1495 /* Structure to keep track of just the first two args of a spec_list.
1496 That is all that the EXTRA_SPECS macro gives us. */
1499 const char *const name
;
1500 const char *const ptr
;
1503 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1504 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1507 /* List of dynamically allocates specs that have been defined so far. */
1509 static struct spec_list
*specs
= (struct spec_list
*) 0;
1511 /* List of static spec functions. */
1513 static const struct spec_function static_spec_functions
[] =
1515 { "if-exists", if_exists_spec_function
},
1516 { "if-exists-else", if_exists_else_spec_function
},
1520 static int processing_spec_function
;
1522 /* Add appropriate libgcc specs to OBSTACK, taking into account
1523 various permutations of -shared-libgcc, -shared, and such. */
1525 #ifdef ENABLE_SHARED_LIBGCC
1527 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1528 const char *static_name
, const char *eh_name
)
1532 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1533 "}%{!static:%{!static-libgcc:",
1534 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1535 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1536 static_name
, "}}%{shared:",
1538 "%{shared-libgcc:", shared_name
,
1539 "}%{!shared-libgcc:", static_name
, "}",
1545 obstack_grow (obstack
, buf
, strlen (buf
));
1548 #endif /* ENABLE_SHARED_LIBGCC */
1550 /* Initialize the specs lookup routines. */
1555 struct spec_list
*next
= (struct spec_list
*) 0;
1556 struct spec_list
*sl
= (struct spec_list
*) 0;
1560 return; /* Already initialized. */
1563 notice ("Using built-in specs.\n");
1566 extra_specs
= xcalloc (sizeof (struct spec_list
),
1567 ARRAY_SIZE (extra_specs_1
));
1569 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1571 sl
= &extra_specs
[i
];
1572 sl
->name
= extra_specs_1
[i
].name
;
1573 sl
->ptr
= extra_specs_1
[i
].ptr
;
1575 sl
->name_len
= strlen (sl
->name
);
1576 sl
->ptr_spec
= &sl
->ptr
;
1581 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1582 on ?: in file-scope variable initializations. */
1583 asm_debug
= ASM_DEBUG_SPEC
;
1585 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1587 sl
= &static_specs
[i
];
1592 #ifdef ENABLE_SHARED_LIBGCC
1593 /* ??? If neither -shared-libgcc nor --static-libgcc was
1594 seen, then we should be making an educated guess. Some proposed
1595 heuristics for ELF include:
1597 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1598 program will be doing dynamic loading, which will likely
1599 need the shared libgcc.
1601 (2) If "-ldl", then it's also a fair bet that we're doing
1604 (3) For each ET_DYN we're linking against (either through -lfoo
1605 or /some/path/foo.so), check to see whether it or one of
1606 its dependencies depends on a shared libgcc.
1610 If the runtime is fixed to look for program headers instead
1611 of calling __register_frame_info at all, for each object,
1612 use the shared libgcc if any EH symbol referenced.
1614 If crtstuff is fixed to not invoke __register_frame_info
1615 automatically, for each object, use the shared libgcc if
1616 any non-empty unwind section found.
1618 Doing any of this probably requires invoking an external program to
1619 do the actual object file scanning. */
1621 const char *p
= libgcc_spec
;
1624 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1625 when given the proper command line arguments. */
1628 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1630 init_gcc_specs (&obstack
,
1631 #ifdef NO_SHARED_LIBGCC_MULTILIB
1636 #ifdef USE_LIBUNWIND_EXCEPTIONS
1645 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1647 /* Ug. We don't know shared library extensions. Hope that
1648 systems that use this form don't do shared libraries. */
1649 init_gcc_specs (&obstack
,
1650 #ifdef NO_SHARED_LIBGCC_MULTILIB
1663 obstack_1grow (&obstack
, *p
);
1664 in_sep
= (*p
== ' ');
1669 obstack_1grow (&obstack
, '\0');
1670 libgcc_spec
= obstack_finish (&obstack
);
1673 #ifdef USE_AS_TRADITIONAL_FORMAT
1674 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1676 static const char tf
[] = "--traditional-format ";
1677 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1678 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1679 asm_spec
= obstack_finish (&obstack
);
1683 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1684 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1685 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1686 link_spec
= obstack_finish (&obstack
);
1692 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1693 removed; If the spec starts with a + then SPEC is added to the end of the
1697 set_spec (const char *name
, const char *spec
)
1699 struct spec_list
*sl
;
1700 const char *old_spec
;
1701 int name_len
= strlen (name
);
1704 /* If this is the first call, initialize the statically allocated specs. */
1707 struct spec_list
*next
= (struct spec_list
*) 0;
1708 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1710 sl
= &static_specs
[i
];
1717 /* See if the spec already exists. */
1718 for (sl
= specs
; sl
; sl
= sl
->next
)
1719 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1724 /* Not found - make it. */
1725 sl
= xmalloc (sizeof (struct spec_list
));
1726 sl
->name
= xstrdup (name
);
1727 sl
->name_len
= name_len
;
1728 sl
->ptr_spec
= &sl
->ptr
;
1730 *(sl
->ptr_spec
) = "";
1735 old_spec
= *(sl
->ptr_spec
);
1736 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1737 ? concat (old_spec
, spec
+ 1, NULL
)
1742 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1745 /* Free the old spec. */
1746 if (old_spec
&& sl
->alloc_p
)
1747 free ((void *) old_spec
);
1752 /* Accumulate a command (program name and args), and run it. */
1754 /* Vector of pointers to arguments in the current line of specifications. */
1756 static const char **argbuf
;
1758 /* Number of elements allocated in argbuf. */
1760 static int argbuf_length
;
1762 /* Number of elements in argbuf currently in use (containing args). */
1764 static int argbuf_index
;
1766 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1767 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1770 static struct temp_name
{
1771 const char *suffix
; /* suffix associated with the code. */
1772 int length
; /* strlen (suffix). */
1773 int unique
; /* Indicates whether %g or %u/%U was used. */
1774 const char *filename
; /* associated filename. */
1775 int filename_length
; /* strlen (filename). */
1776 struct temp_name
*next
;
1779 /* Number of commands executed so far. */
1781 static int execution_count
;
1783 /* Number of commands that exited with a signal. */
1785 static int signal_count
;
1787 /* Name with which this program was invoked. */
1789 static const char *programname
;
1791 /* Allocate the argument vector. */
1797 argbuf
= xmalloc (argbuf_length
* sizeof (const char *));
1800 /* Clear out the vector of arguments (after a command is executed). */
1808 /* Add one argument to the vector at the end.
1809 This is done when a space is seen or at the end of the line.
1810 If DELETE_ALWAYS is nonzero, the arg is a filename
1811 and the file should be deleted eventually.
1812 If DELETE_FAILURE is nonzero, the arg is a filename
1813 and the file should be deleted if this compilation fails. */
1816 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1818 if (argbuf_index
+ 1 == argbuf_length
)
1819 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1821 argbuf
[argbuf_index
++] = arg
;
1822 argbuf
[argbuf_index
] = 0;
1824 if (delete_always
|| delete_failure
)
1825 record_temp_file (arg
, delete_always
, delete_failure
);
1828 /* Load specs from a file name named FILENAME, replacing occurrences of
1829 various different types of line-endings, \r\n, \n\r and just \r, with
1833 load_specs (const char *filename
)
1837 struct stat statbuf
;
1844 notice ("Reading specs from %s\n", filename
);
1846 /* Open and stat the file. */
1847 desc
= open (filename
, O_RDONLY
, 0);
1849 pfatal_with_name (filename
);
1850 if (stat (filename
, &statbuf
) < 0)
1851 pfatal_with_name (filename
);
1853 /* Read contents of file into BUFFER. */
1854 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1855 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1857 pfatal_with_name (filename
);
1858 buffer
[readlen
] = 0;
1861 specs
= xmalloc (readlen
+ 1);
1863 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1869 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1871 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1885 /* Read compilation specs from a file named FILENAME,
1886 replacing the default ones.
1888 A suffix which starts with `*' is a definition for
1889 one of the machine-specific sub-specs. The "suffix" should be
1890 *asm, *cc1, *cpp, *link, *startfile, etc.
1891 The corresponding spec is stored in asm_spec, etc.,
1892 rather than in the `compilers' vector.
1894 Anything invalid in the file is a fatal error. */
1897 read_specs (const char *filename
, int main_p
)
1902 buffer
= load_specs (filename
);
1904 /* Scan BUFFER for specs, putting them in the vector. */
1910 char *in
, *out
, *p1
, *p2
, *p3
;
1912 /* Advance P in BUFFER to the next nonblank nocomment line. */
1913 p
= skip_whitespace (p
);
1917 /* Is this a special command that starts with '%'? */
1918 /* Don't allow this for the main specs file, since it would
1919 encourage people to overwrite it. */
1920 if (*p
== '%' && !main_p
)
1923 while (*p
&& *p
!= '\n')
1929 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1930 && (p1
[sizeof "%include" - 1] == ' '
1931 || p1
[sizeof "%include" - 1] == '\t'))
1935 p1
+= sizeof ("%include");
1936 while (*p1
== ' ' || *p1
== '\t')
1939 if (*p1
++ != '<' || p
[-2] != '>')
1940 fatal ("specs %%include syntax malformed after %ld characters",
1941 (long) (p1
- buffer
+ 1));
1944 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1945 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1948 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1949 && (p1
[sizeof "%include_noerr" - 1] == ' '
1950 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1954 p1
+= sizeof "%include_noerr";
1955 while (*p1
== ' ' || *p1
== '\t')
1958 if (*p1
++ != '<' || p
[-2] != '>')
1959 fatal ("specs %%include syntax malformed after %ld characters",
1960 (long) (p1
- buffer
+ 1));
1963 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, 0);
1965 read_specs (new_filename
, FALSE
);
1966 else if (verbose_flag
)
1967 notice ("could not find specs file %s\n", p1
);
1970 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1971 && (p1
[sizeof "%rename" - 1] == ' '
1972 || p1
[sizeof "%rename" - 1] == '\t'))
1975 struct spec_list
*sl
;
1976 struct spec_list
*newsl
;
1978 /* Get original name. */
1979 p1
+= sizeof "%rename";
1980 while (*p1
== ' ' || *p1
== '\t')
1983 if (! ISALPHA ((unsigned char) *p1
))
1984 fatal ("specs %%rename syntax malformed after %ld characters",
1985 (long) (p1
- buffer
));
1988 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1991 if (*p2
!= ' ' && *p2
!= '\t')
1992 fatal ("specs %%rename syntax malformed after %ld characters",
1993 (long) (p2
- buffer
));
1997 while (*p2
== ' ' || *p2
== '\t')
2000 if (! ISALPHA ((unsigned char) *p2
))
2001 fatal ("specs %%rename syntax malformed after %ld characters",
2002 (long) (p2
- buffer
));
2004 /* Get new spec name. */
2006 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2010 fatal ("specs %%rename syntax malformed after %ld characters",
2011 (long) (p3
- buffer
));
2014 for (sl
= specs
; sl
; sl
= sl
->next
)
2015 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2019 fatal ("specs %s spec was not found to be renamed", p1
);
2021 if (strcmp (p1
, p2
) == 0)
2024 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2025 if (strcmp (newsl
->name
, p2
) == 0)
2026 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2031 notice ("rename spec %s to %s\n", p1
, p2
);
2033 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2037 set_spec (p2
, *(sl
->ptr_spec
));
2039 free ((void *) *(sl
->ptr_spec
));
2041 *(sl
->ptr_spec
) = "";
2046 fatal ("specs unknown %% command after %ld characters",
2047 (long) (p1
- buffer
));
2050 /* Find the colon that should end the suffix. */
2052 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2055 /* The colon shouldn't be missing. */
2057 fatal ("specs file malformed after %ld characters",
2058 (long) (p1
- buffer
));
2060 /* Skip back over trailing whitespace. */
2062 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2065 /* Copy the suffix to a string. */
2066 suffix
= save_string (p
, p2
- p
);
2067 /* Find the next line. */
2068 p
= skip_whitespace (p1
+ 1);
2070 fatal ("specs file malformed after %ld characters",
2071 (long) (p
- buffer
));
2074 /* Find next blank line or end of string. */
2075 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2078 /* Specs end at the blank line and do not include the newline. */
2079 spec
= save_string (p
, p1
- p
);
2082 /* Delete backslash-newline sequences from the spec. */
2087 if (in
[0] == '\\' && in
[1] == '\n')
2089 else if (in
[0] == '#')
2090 while (*in
&& *in
!= '\n')
2098 if (suffix
[0] == '*')
2100 if (! strcmp (suffix
, "*link_command"))
2101 link_command_spec
= spec
;
2103 set_spec (suffix
+ 1, spec
);
2107 /* Add this pair to the vector. */
2109 = xrealloc (compilers
,
2110 (n_compilers
+ 2) * sizeof (struct compiler
));
2112 compilers
[n_compilers
].suffix
= suffix
;
2113 compilers
[n_compilers
].spec
= spec
;
2115 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2119 link_command_spec
= spec
;
2122 if (link_command_spec
== 0)
2123 fatal ("spec file has no spec for linking");
2126 /* Record the names of temporary files we tell compilers to write,
2127 and delete them at the end of the run. */
2129 /* This is the common prefix we use to make temp file names.
2130 It is chosen once for each run of this program.
2131 It is substituted into a spec by %g or %j.
2132 Thus, all temp file names contain this prefix.
2133 In practice, all temp file names start with this prefix.
2135 This prefix comes from the envvar TMPDIR if it is defined;
2136 otherwise, from the P_tmpdir macro if that is defined;
2137 otherwise, in /usr/tmp or /tmp;
2138 or finally the current directory if all else fails. */
2140 static const char *temp_filename
;
2142 /* Length of the prefix. */
2144 static int temp_filename_length
;
2146 /* Define the list of temporary files to delete. */
2151 struct temp_file
*next
;
2154 /* Queue of files to delete on success or failure of compilation. */
2155 static struct temp_file
*always_delete_queue
;
2156 /* Queue of files to delete on failure of compilation. */
2157 static struct temp_file
*failure_delete_queue
;
2159 /* Record FILENAME as a file to be deleted automatically.
2160 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2161 otherwise delete it in any case.
2162 FAIL_DELETE nonzero means delete it if a compilation step fails;
2163 otherwise delete it in any case. */
2166 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2168 char *const name
= xstrdup (filename
);
2172 struct temp_file
*temp
;
2173 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2174 if (! strcmp (name
, temp
->name
))
2177 temp
= xmalloc (sizeof (struct temp_file
));
2178 temp
->next
= always_delete_queue
;
2180 always_delete_queue
= temp
;
2187 struct temp_file
*temp
;
2188 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2189 if (! strcmp (name
, temp
->name
))
2192 temp
= xmalloc (sizeof (struct temp_file
));
2193 temp
->next
= failure_delete_queue
;
2195 failure_delete_queue
= temp
;
2201 /* Delete all the temporary files whose names we previously recorded. */
2204 delete_if_ordinary (const char *name
)
2210 printf ("Delete %s? (y or n) ", name
);
2214 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2217 if (i
== 'y' || i
== 'Y')
2219 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2220 if (unlink (name
) < 0)
2222 perror_with_name (name
);
2226 delete_temp_files (void)
2228 struct temp_file
*temp
;
2230 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2231 delete_if_ordinary (temp
->name
);
2232 always_delete_queue
= 0;
2235 /* Delete all the files to be deleted on error. */
2238 delete_failure_queue (void)
2240 struct temp_file
*temp
;
2242 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2243 delete_if_ordinary (temp
->name
);
2247 clear_failure_queue (void)
2249 failure_delete_queue
= 0;
2252 /* Build a list of search directories from PATHS.
2253 PREFIX is a string to prepend to the list.
2254 If CHECK_DIR_P is nonzero we ensure the directory exists.
2255 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2256 It is also used by the --print-search-dirs flag. */
2259 build_search_list (struct path_prefix
*paths
, const char *prefix
,
2262 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2264 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2265 int first_time
= TRUE
;
2266 struct prefix_list
*pprefix
;
2268 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2269 obstack_1grow (&collect_obstack
, '=');
2271 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2273 int len
= strlen (pprefix
->prefix
);
2277 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2280 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2283 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2284 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2287 if (just_machine_suffix
2288 && pprefix
->require_machine_suffix
== 2
2290 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2293 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2296 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2297 obstack_grow (&collect_obstack
, just_machine_suffix
,
2301 if (! pprefix
->require_machine_suffix
)
2304 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2307 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2311 obstack_1grow (&collect_obstack
, '\0');
2312 return obstack_finish (&collect_obstack
);
2315 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2319 putenv_from_prefixes (struct path_prefix
*paths
, const char *env_var
)
2321 putenv (build_search_list (paths
, env_var
, 1));
2324 /* Check whether NAME can be accessed in MODE. This is like access,
2325 except that it never considers directories to be executable. */
2328 access_check (const char *name
, int mode
)
2334 if (stat (name
, &st
) < 0
2335 || S_ISDIR (st
.st_mode
))
2339 return access (name
, mode
);
2342 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2343 access to check permissions.
2344 Return 0 if not found, otherwise return its name, allocated with malloc. */
2347 find_a_file (struct path_prefix
*pprefix
, const char *name
, int mode
,
2351 const char *const file_suffix
=
2352 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2353 struct prefix_list
*pl
;
2354 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2355 const char *multilib_name
, *multilib_os_name
;
2357 #ifdef DEFAULT_ASSEMBLER
2358 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2359 return xstrdup (DEFAULT_ASSEMBLER
);
2362 #ifdef DEFAULT_LINKER
2363 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2364 return xstrdup (DEFAULT_LINKER
);
2368 len
+= strlen (machine_suffix
);
2370 multilib_name
= name
;
2371 multilib_os_name
= name
;
2372 if (multilib
&& multilib_os_dir
)
2374 int len1
= multilib_dir
? strlen (multilib_dir
) + 1 : 0;
2375 int len2
= strlen (multilib_os_dir
) + 1;
2377 len
+= len1
> len2
? len1
: len2
;
2379 multilib_name
= ACONCAT ((multilib_dir
, dir_separator_str
, name
,
2381 if (strcmp (multilib_os_dir
, ".") != 0)
2382 multilib_os_name
= ACONCAT ((multilib_os_dir
, dir_separator_str
, name
,
2386 temp
= xmalloc (len
);
2388 /* Determine the filename to execute (special case for absolute paths). */
2390 if (IS_ABSOLUTE_PATH (name
))
2392 if (access (name
, mode
) == 0)
2394 strcpy (temp
, name
);
2399 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2401 const char *this_name
2402 = pl
->os_multilib
? multilib_os_name
: multilib_name
;
2406 /* Some systems have a suffix for executable files.
2407 So try appending that first. */
2408 if (file_suffix
[0] != 0)
2410 strcpy (temp
, pl
->prefix
);
2411 strcat (temp
, machine_suffix
);
2412 strcat (temp
, multilib_name
);
2413 strcat (temp
, file_suffix
);
2414 if (access_check (temp
, mode
) == 0)
2416 if (pl
->used_flag_ptr
!= 0)
2417 *pl
->used_flag_ptr
= 1;
2422 /* Now try just the multilib_name. */
2423 strcpy (temp
, pl
->prefix
);
2424 strcat (temp
, machine_suffix
);
2425 strcat (temp
, multilib_name
);
2426 if (access_check (temp
, mode
) == 0)
2428 if (pl
->used_flag_ptr
!= 0)
2429 *pl
->used_flag_ptr
= 1;
2434 /* Certain prefixes are tried with just the machine type,
2435 not the version. This is used for finding as, ld, etc. */
2436 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2438 /* Some systems have a suffix for executable files.
2439 So try appending that first. */
2440 if (file_suffix
[0] != 0)
2442 strcpy (temp
, pl
->prefix
);
2443 strcat (temp
, just_machine_suffix
);
2444 strcat (temp
, multilib_name
);
2445 strcat (temp
, file_suffix
);
2446 if (access_check (temp
, mode
) == 0)
2448 if (pl
->used_flag_ptr
!= 0)
2449 *pl
->used_flag_ptr
= 1;
2454 strcpy (temp
, pl
->prefix
);
2455 strcat (temp
, just_machine_suffix
);
2456 strcat (temp
, multilib_name
);
2457 if (access_check (temp
, mode
) == 0)
2459 if (pl
->used_flag_ptr
!= 0)
2460 *pl
->used_flag_ptr
= 1;
2465 /* Certain prefixes can't be used without the machine suffix
2466 when the machine or version is explicitly specified. */
2467 if (! pl
->require_machine_suffix
)
2469 /* Some systems have a suffix for executable files.
2470 So try appending that first. */
2471 if (file_suffix
[0] != 0)
2473 strcpy (temp
, pl
->prefix
);
2474 strcat (temp
, this_name
);
2475 strcat (temp
, file_suffix
);
2476 if (access_check (temp
, mode
) == 0)
2478 if (pl
->used_flag_ptr
!= 0)
2479 *pl
->used_flag_ptr
= 1;
2484 strcpy (temp
, pl
->prefix
);
2485 strcat (temp
, this_name
);
2486 if (access_check (temp
, mode
) == 0)
2488 if (pl
->used_flag_ptr
!= 0)
2489 *pl
->used_flag_ptr
= 1;
2499 /* Ranking of prefixes in the sort list. -B prefixes are put before
2502 enum path_prefix_priority
2504 PREFIX_PRIORITY_B_OPT
,
2505 PREFIX_PRIORITY_LAST
2508 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2509 order according to PRIORITY. Within each PRIORITY, new entries are
2512 If WARN is nonzero, we will warn if no file is found
2513 through this prefix. WARN should point to an int
2514 which will be set to 1 if this entry is used.
2516 COMPONENT is the value to be passed to update_path.
2518 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2519 the complete value of machine_suffix.
2520 2 means try both machine_suffix and just_machine_suffix. */
2523 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2524 const char *component
, /* enum prefix_priority */ int priority
,
2525 int require_machine_suffix
, int *warn
, int os_multilib
)
2527 struct prefix_list
*pl
, **prev
;
2530 for (prev
= &pprefix
->plist
;
2531 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2532 prev
= &(*prev
)->next
)
2535 /* Keep track of the longest prefix. */
2537 prefix
= update_path (prefix
, component
);
2538 len
= strlen (prefix
);
2539 if (len
> pprefix
->max_len
)
2540 pprefix
->max_len
= len
;
2542 pl
= xmalloc (sizeof (struct prefix_list
));
2543 pl
->prefix
= prefix
;
2544 pl
->require_machine_suffix
= require_machine_suffix
;
2545 pl
->used_flag_ptr
= warn
;
2546 pl
->priority
= priority
;
2547 pl
->os_multilib
= os_multilib
;
2551 /* Insert after PREV. */
2556 /* Same as add_prefix, but prepending target_system_root to prefix. */
2558 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2559 const char *component
,
2560 /* enum prefix_priority */ int priority
,
2561 int require_machine_suffix
, int *warn
, int os_multilib
)
2563 if (!IS_ABSOLUTE_PATH (prefix
))
2566 if (target_system_root
)
2568 if (target_sysroot_suffix
)
2569 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2570 prefix
= concat (target_system_root
, prefix
, NULL
);
2572 /* We have to override this because GCC's notion of sysroot
2573 moves along with GCC. */
2577 add_prefix (pprefix
, prefix
, component
, priority
,
2578 require_machine_suffix
, warn
, os_multilib
);
2581 /* Execute the command specified by the arguments on the current line of spec.
2582 When using pipes, this includes several piped-together commands
2583 with `|' between them.
2585 Return 0 if successful, -1 if failed. */
2591 int n_commands
; /* # of command. */
2595 const char *prog
; /* program name. */
2596 const char **argv
; /* vector of args. */
2597 int pid
; /* pid of process for this command. */
2600 struct command
*commands
; /* each command buffer with above info. */
2602 if (processing_spec_function
)
2605 /* Count # of piped commands. */
2606 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2607 if (strcmp (argbuf
[i
], "|") == 0)
2610 /* Get storage for each command. */
2611 commands
= alloca (n_commands
* sizeof (struct command
));
2613 /* Split argbuf into its separate piped processes,
2614 and record info about each one.
2615 Also search for the programs that are to be run. */
2617 commands
[0].prog
= argbuf
[0]; /* first command. */
2618 commands
[0].argv
= &argbuf
[0];
2619 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, 0);
2622 commands
[0].argv
[0] = string
;
2624 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2625 if (strcmp (argbuf
[i
], "|") == 0)
2626 { /* each command. */
2627 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2628 fatal ("-pipe not supported");
2630 argbuf
[i
] = 0; /* termination of command args. */
2631 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2632 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2633 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2636 commands
[n_commands
].argv
[0] = string
;
2640 argbuf
[argbuf_index
] = 0;
2642 /* If -v, print what we are about to do, and maybe query. */
2646 /* For help listings, put a blank line between sub-processes. */
2647 if (print_help_list
)
2648 fputc ('\n', stderr
);
2650 /* Print each piped command as a separate line. */
2651 for (i
= 0; i
< n_commands
; i
++)
2653 const char *const *j
;
2655 if (verbose_only_flag
)
2657 for (j
= commands
[i
].argv
; *j
; j
++)
2660 fprintf (stderr
, " \"");
2661 for (p
= *j
; *p
; ++p
)
2663 if (*p
== '"' || *p
== '\\' || *p
== '$')
2664 fputc ('\\', stderr
);
2667 fputc ('"', stderr
);
2671 for (j
= commands
[i
].argv
; *j
; j
++)
2672 fprintf (stderr
, " %s", *j
);
2674 /* Print a pipe symbol after all but the last command. */
2675 if (i
+ 1 != n_commands
)
2676 fprintf (stderr
, " |");
2677 fprintf (stderr
, "\n");
2680 if (verbose_only_flag
!= 0)
2683 notice ("\nGo ahead? (y or n) ");
2687 while (getchar () != '\n')
2690 if (i
!= 'y' && i
!= 'Y')
2695 #ifdef ENABLE_VALGRIND_CHECKING
2696 /* Run the each command through valgrind. To simplify prepending the
2697 path to valgrind and the option "-q" (for quiet operation unless
2698 something triggers), we allocate a separate argv array. */
2700 for (i
= 0; i
< n_commands
; i
++)
2706 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2709 argv
= alloca ((argc
+ 3) * sizeof (char *));
2711 argv
[0] = VALGRIND_PATH
;
2713 for (j
= 2; j
< argc
+ 2; j
++)
2714 argv
[j
] = commands
[i
].argv
[j
- 2];
2717 commands
[i
].argv
= argv
;
2718 commands
[i
].prog
= argv
[0];
2722 /* Run each piped subprocess. */
2724 for (i
= 0; i
< n_commands
; i
++)
2726 char *errmsg_fmt
, *errmsg_arg
;
2727 const char *string
= commands
[i
].argv
[0];
2729 /* For some bizarre reason, the second argument of execvp() is
2730 char *const *, not const char *const *. */
2731 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2732 programname
, temp_filename
,
2733 &errmsg_fmt
, &errmsg_arg
,
2734 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2735 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2736 | (string
== commands
[i
].prog
2737 ? PEXECUTE_SEARCH
: 0)
2738 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2740 if (commands
[i
].pid
== -1)
2741 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2743 if (string
!= commands
[i
].prog
)
2744 free ((void *) string
);
2749 /* Wait for all the subprocesses to finish.
2750 We don't care what order they finish in;
2751 we know that N_COMMANDS waits will get them all.
2752 Ignore subprocesses that we don't know about,
2753 since they can be spawned by the process that exec'ed us. */
2757 #ifdef HAVE_GETRUSAGE
2759 double ut
= 0.0, st
= 0.0;
2762 for (i
= 0; i
< n_commands
;)
2768 pid
= pwait (commands
[i
].pid
, &status
, 0);
2772 #ifdef HAVE_GETRUSAGE
2775 /* getrusage returns the total resource usage of all children
2776 up to now. Copy the previous values into prus, get the
2777 current statistics, then take the difference. */
2780 getrusage (RUSAGE_CHILDREN
, &rus
);
2781 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2782 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2783 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2785 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2786 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2787 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2791 for (j
= 0; j
< n_commands
; j
++)
2792 if (commands
[j
].pid
== pid
)
2795 if (WIFSIGNALED (status
))
2798 /* SIGPIPE is a special case. It happens in -pipe mode
2799 when the compiler dies before the preprocessor is
2800 done, or the assembler dies before the compiler is
2801 done. There's generally been an error already, and
2802 this is just fallout. So don't generate another error
2803 unless we would otherwise have succeeded. */
2804 if (WTERMSIG (status
) == SIGPIPE
2805 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2810 Internal error: %s (program %s)\n\
2811 Please submit a full bug report.\n\
2812 See %s for instructions.",
2813 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2818 else if (WIFEXITED (status
)
2819 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2821 if (WEXITSTATUS (status
) > greatest_status
)
2822 greatest_status
= WEXITSTATUS (status
);
2825 #ifdef HAVE_GETRUSAGE
2826 if (report_times
&& ut
+ st
!= 0)
2827 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2836 /* Find all the switches given to us
2837 and make a vector describing them.
2838 The elements of the vector are strings, one per switch given.
2839 If a switch uses following arguments, then the `part1' field
2840 is the switch itself and the `args' field
2841 is a null-terminated vector containing the following arguments.
2842 The `live_cond' field is:
2844 1 if the switch is true in a conditional spec,
2845 -1 if false (overridden by a later switch)
2846 -2 if this switch should be ignored (used in %<S)
2847 The `validated' field is nonzero if any spec has looked at this switch;
2848 if it remains zero at the end of the run, it must be meaningless. */
2851 #define SWITCH_FALSE -1
2852 #define SWITCH_IGNORE -2
2853 #define SWITCH_LIVE 1
2860 unsigned char validated
;
2861 unsigned char ordering
;
2864 static struct switchstr
*switches
;
2866 static int n_switches
;
2871 const char *language
;
2874 /* Also a vector of input files specified. */
2876 static struct infile
*infiles
;
2880 /* True if multiple input files are being compiled to a single
2883 static bool combine_inputs
;
2885 /* This counts the number of libraries added by lang_specific_driver, so that
2886 we can tell if there were any user supplied any files or libraries. */
2888 static int added_libraries
;
2890 /* And a vector of corresponding output files is made up later. */
2892 const char **outfiles
;
2894 /* Used to track if none of the -B paths are used. */
2897 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2898 static int *warn_std_ptr
= 0;
2900 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2902 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2903 is true if we should look for an executable suffix. DO_OBJ
2904 is true if we should look for an object suffix. */
2907 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2908 int do_obj ATTRIBUTE_UNUSED
)
2910 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2918 len
= strlen (name
);
2920 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2921 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2922 if (do_obj
&& len
> 2
2923 && name
[len
- 2] == '.'
2924 && name
[len
- 1] == 'o')
2926 obstack_grow (&obstack
, name
, len
- 2);
2927 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2928 name
= obstack_finish (&obstack
);
2932 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2933 /* If there is no filetype, make it the executable suffix (which includes
2934 the "."). But don't get confused if we have just "-o". */
2935 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2938 for (i
= len
- 1; i
>= 0; i
--)
2939 if (IS_DIR_SEPARATOR (name
[i
]))
2942 for (i
++; i
< len
; i
++)
2946 obstack_grow (&obstack
, name
, len
);
2947 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2948 strlen (TARGET_EXECUTABLE_SUFFIX
));
2949 name
= obstack_finish (&obstack
);
2956 /* Display the command line switches accepted by gcc. */
2960 printf (_("Usage: %s [options] file...\n"), programname
);
2961 fputs (_("Options:\n"), stdout
);
2963 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2964 fputs (_(" --help Display this information\n"), stdout
);
2965 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2967 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2968 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2969 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2970 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2971 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2972 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2973 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2974 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2975 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2977 -print-multi-lib Display the mapping between command line options and\n\
2978 multiple library search directories\n"), stdout
);
2979 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2980 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2981 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2982 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2983 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2984 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2985 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2986 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2987 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2988 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2989 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2990 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2991 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2992 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
2993 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
2994 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2995 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2996 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2997 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2998 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2999 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3001 -x <language> Specify the language of the following input files\n\
3002 Permissible languages include: c c++ assembler none\n\
3003 'none' means revert to the default behavior of\n\
3004 guessing the language based on the file's extension\n\
3008 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3009 passed on to the various sub-processes invoked by %s. In order to pass\n\
3010 other options on to these processes the -W<letter> options must be used.\n\
3013 /* The rest of the options are displayed by invocations of the various
3018 add_preprocessor_option (const char *option
, int len
)
3020 n_preprocessor_options
++;
3022 if (! preprocessor_options
)
3023 preprocessor_options
= xmalloc (n_preprocessor_options
* sizeof (char *));
3025 preprocessor_options
= xrealloc (preprocessor_options
,
3026 n_preprocessor_options
* sizeof (char *));
3028 preprocessor_options
[n_preprocessor_options
- 1] =
3029 save_string (option
, len
);
3033 add_assembler_option (const char *option
, int len
)
3035 n_assembler_options
++;
3037 if (! assembler_options
)
3038 assembler_options
= xmalloc (n_assembler_options
* sizeof (char *));
3040 assembler_options
= xrealloc (assembler_options
,
3041 n_assembler_options
* sizeof (char *));
3043 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3047 add_linker_option (const char *option
, int len
)
3051 if (! linker_options
)
3052 linker_options
= xmalloc (n_linker_options
* sizeof (char *));
3054 linker_options
= xrealloc (linker_options
,
3055 n_linker_options
* sizeof (char *));
3057 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3060 /* Create the vector `switches' and its contents.
3061 Store its length in `n_switches'. */
3064 process_command (int argc
, const char *const *argv
)
3069 const char *spec_lang
= 0;
3070 int last_language_n_infiles
;
3073 int lang_n_infiles
= 0;
3074 #ifdef MODIFY_TARGET_NAME
3075 int is_modify_target_name
;
3079 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3083 added_libraries
= 0;
3085 /* Figure compiler version from version string. */
3087 compiler_version
= temp1
= xstrdup (version_string
);
3089 for (; *temp1
; ++temp1
)
3098 /* If there is a -V or -b option (or both), process it now, before
3099 trying to interpret the rest of the command line. */
3100 if (argc
> 1 && argv
[1][0] == '-'
3101 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3103 const char *new_version
= DEFAULT_TARGET_VERSION
;
3104 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3105 const char *progname
= argv
[0];
3110 while (argc
> 1 && argv
[1][0] == '-'
3111 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3113 char opt
= argv
[1][1];
3115 if (argv
[1][2] != '\0')
3128 fatal ("`-%c' option must have argument", opt
);
3135 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3136 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3138 new_argv0
= xmemdup (progname
, baselen
,
3139 baselen
+ concat_length (new_version
, new_machine
,
3140 "-gcc-", NULL
) + 1);
3141 strcpy (new_argv0
+ baselen
, new_machine
);
3142 strcat (new_argv0
, "-gcc-");
3143 strcat (new_argv0
, new_version
);
3145 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3146 (argc
+ 1) * sizeof (argv
[0]));
3147 new_argv
[0] = new_argv0
;
3149 execvp (new_argv0
, new_argv
);
3150 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3153 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3154 see if we can create it from the pathname specified in argv[0]. */
3156 gcc_libexec_prefix
= standard_libexec_prefix
;
3158 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3159 if (!gcc_exec_prefix
)
3161 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3162 standard_exec_prefix
);
3163 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3164 standard_bindir_prefix
,
3165 standard_libexec_prefix
);
3166 if (gcc_exec_prefix
)
3167 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3170 gcc_libexec_prefix
= make_relative_prefix (gcc_exec_prefix
,
3171 standard_exec_prefix
,
3172 standard_libexec_prefix
);
3176 if (gcc_exec_prefix
)
3178 int len
= strlen (gcc_exec_prefix
);
3180 if (len
> (int) sizeof ("/lib/gcc/") - 1
3181 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3183 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3184 if (IS_DIR_SEPARATOR (*temp
)
3185 && strncmp (temp
+ 1, "lib", 3) == 0
3186 && IS_DIR_SEPARATOR (temp
[4])
3187 && strncmp (temp
+ 5, "gcc", 3) == 0)
3188 len
-= sizeof ("/lib/gcc/") - 1;
3191 set_std_prefix (gcc_exec_prefix
, len
);
3192 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3193 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3194 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3195 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3198 /* COMPILER_PATH and LIBRARY_PATH have values
3199 that are lists of directory names with colons. */
3201 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3204 const char *startp
, *endp
;
3205 char *nstore
= alloca (strlen (temp
) + 3);
3207 startp
= endp
= temp
;
3210 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3212 strncpy (nstore
, startp
, endp
- startp
);
3214 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3215 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3217 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3218 nstore
[endp
- startp
+ 1] = 0;
3221 nstore
[endp
- startp
] = 0;
3222 add_prefix (&exec_prefixes
, nstore
, 0,
3223 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3224 add_prefix (&include_prefixes
,
3225 concat (nstore
, "include", NULL
),
3226 0, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3229 endp
= startp
= endp
+ 1;
3236 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3237 if (temp
&& *cross_compile
== '0')
3239 const char *startp
, *endp
;
3240 char *nstore
= alloca (strlen (temp
) + 3);
3242 startp
= endp
= temp
;
3245 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3247 strncpy (nstore
, startp
, endp
- startp
);
3249 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3250 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3252 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3253 nstore
[endp
- startp
+ 1] = 0;
3256 nstore
[endp
- startp
] = 0;
3257 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3258 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3261 endp
= startp
= endp
+ 1;
3268 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3269 GET_ENVIRONMENT (temp
, "LPATH");
3270 if (temp
&& *cross_compile
== '0')
3272 const char *startp
, *endp
;
3273 char *nstore
= alloca (strlen (temp
) + 3);
3275 startp
= endp
= temp
;
3278 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3280 strncpy (nstore
, startp
, endp
- startp
);
3282 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3283 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3285 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3286 nstore
[endp
- startp
+ 1] = 0;
3289 nstore
[endp
- startp
] = 0;
3290 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3291 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3294 endp
= startp
= endp
+ 1;
3301 /* Convert new-style -- options to old-style. */
3302 translate_options (&argc
, &argv
);
3304 /* Do language-specific adjustment/addition of flags. */
3305 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3307 /* Scan argv twice. Here, the first time, just count how many switches
3308 there will be in their vector, and how many input files in theirs.
3309 Here we also parse the switches that cc itself uses (e.g. -v). */
3311 for (i
= 1; i
< argc
; i
++)
3313 if (! strcmp (argv
[i
], "-dumpspecs"))
3315 struct spec_list
*sl
;
3317 for (sl
= specs
; sl
; sl
= sl
->next
)
3318 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3319 if (link_command_spec
)
3320 printf ("*link_command:\n%s\n\n", link_command_spec
);
3323 else if (! strcmp (argv
[i
], "-dumpversion"))
3325 printf ("%s\n", spec_version
);
3328 else if (! strcmp (argv
[i
], "-dumpmachine"))
3330 printf ("%s\n", spec_machine
);
3333 else if (strcmp (argv
[i
], "-fversion") == 0)
3335 /* translate_options () has turned --version into -fversion. */
3336 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3337 fputs (_("Copyright (C) 2003 Free Software Foundation, Inc.\n"),
3339 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3340 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3344 else if (strcmp (argv
[i
], "-fhelp") == 0)
3346 /* translate_options () has turned --help into -fhelp. */
3347 print_help_list
= 1;
3349 /* We will be passing a dummy file on to the sub-processes. */
3353 /* CPP driver cannot obtain switch from cc1_options. */
3355 add_preprocessor_option ("--help", 6);
3356 add_assembler_option ("--help", 6);
3357 add_linker_option ("--help", 6);
3359 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3361 /* translate_options() has turned --target-help into -ftarget-help. */
3362 target_help_flag
= 1;
3364 /* We will be passing a dummy file on to the sub-processes. */
3368 /* CPP driver cannot obtain switch from cc1_options. */
3370 add_preprocessor_option ("--target-help", 13);
3371 add_assembler_option ("--target-help", 13);
3372 add_linker_option ("--target-help", 13);
3374 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3376 pass_exit_codes
= 1;
3379 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3380 print_search_dirs
= 1;
3381 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3382 print_file_name
= "libgcc.a";
3383 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3384 print_file_name
= argv
[i
] + 17;
3385 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3386 print_prog_name
= argv
[i
] + 17;
3387 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3388 print_multi_lib
= 1;
3389 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3390 print_multi_directory
= 1;
3391 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3392 print_multi_os_directory
= 1;
3393 else if (! strncmp (argv
[i
], "-Wa,", 4))
3396 /* Pass the rest of this option to the assembler. */
3398 /* Split the argument at commas. */
3400 for (j
= 4; argv
[i
][j
]; j
++)
3401 if (argv
[i
][j
] == ',')
3403 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3407 /* Record the part after the last comma. */
3408 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3410 else if (! strncmp (argv
[i
], "-Wp,", 4))
3413 /* Pass the rest of this option to the preprocessor. */
3415 /* Split the argument at commas. */
3417 for (j
= 4; argv
[i
][j
]; j
++)
3418 if (argv
[i
][j
] == ',')
3420 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3424 /* Record the part after the last comma. */
3425 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3427 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3428 /* The +e options to the C++ front-end. */
3430 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3433 /* Split the argument at commas. */
3434 for (j
= 3; argv
[i
][j
]; j
++)
3435 n_infiles
+= (argv
[i
][j
] == ',');
3437 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3440 fatal ("argument to `-Xlinker' is missing");
3445 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3448 fatal ("argument to `-Xpreprocessor' is missing");
3450 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3452 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3455 fatal ("argument to `-Xassembler' is missing");
3457 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3459 else if (strcmp (argv
[i
], "-l") == 0)
3462 fatal ("argument to `-l' is missing");
3467 else if (strncmp (argv
[i
], "-l", 2) == 0)
3469 else if (strcmp (argv
[i
], "-save-temps") == 0)
3471 save_temps_flag
= 1;
3474 else if (strcmp (argv
[i
], "-specs") == 0)
3476 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3478 fatal ("argument to `-specs' is missing");
3480 user
->next
= (struct user_specs
*) 0;
3481 user
->filename
= argv
[i
];
3482 if (user_specs_tail
)
3483 user_specs_tail
->next
= user
;
3485 user_specs_head
= user
;
3486 user_specs_tail
= user
;
3488 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3490 struct user_specs
*user
= xmalloc (sizeof (struct user_specs
));
3491 if (strlen (argv
[i
]) == 7)
3492 fatal ("argument to `-specs=' is missing");
3494 user
->next
= (struct user_specs
*) 0;
3495 user
->filename
= argv
[i
] + 7;
3496 if (user_specs_tail
)
3497 user_specs_tail
->next
= user
;
3499 user_specs_head
= user
;
3500 user_specs_tail
= user
;
3502 else if (strcmp (argv
[i
], "-time") == 0)
3504 else if (strcmp (argv
[i
], "-pipe") == 0)
3506 /* -pipe has to go into the switches array as well as
3511 else if (strcmp (argv
[i
], "-###") == 0)
3513 /* This is similar to -v except that there is no execution
3514 of the commands and the echoed arguments are quoted. It
3515 is intended for use in shell scripts to capture the
3516 driver-generated command line. */
3517 verbose_only_flag
++;
3520 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3522 const char *p
= &argv
[i
][1];
3529 fatal ("`-%c' must come at the start of the command line", c
);
3537 if (p
[1] == 0 && i
+ 1 == argc
)
3538 fatal ("argument to `-B' is missing");
3544 len
= strlen (value
);
3546 /* Catch the case where the user has forgotten to append a
3547 directory separator to the path. Note, they may be using
3548 -B to add an executable name prefix, eg "i386-elf-", in
3549 order to distinguish between multiple installations of
3550 GCC in the same directory. Hence we must check to see
3551 if appending a directory separator actually makes a
3552 valid directory name. */
3553 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3554 && is_directory (value
, "", 0))
3556 char *tmp
= xmalloc (len
+ 2);
3557 strcpy (tmp
, value
);
3558 tmp
[len
] = DIR_SEPARATOR
;
3563 /* As a kludge, if the arg is "[foo/]stageN/", just
3564 add "[foo/]include" to the include prefix. */
3567 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3568 && strncmp (value
+ len
- 7, "stage", 5) == 0
3569 && ISDIGIT (value
[len
- 2])
3570 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3573 add_prefix (&include_prefixes
, "include", NULL
,
3574 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3577 char * string
= xmalloc (len
+ 1);
3579 strncpy (string
, value
, len
- 7);
3580 strcpy (string
+ len
- 7, "include");
3581 add_prefix (&include_prefixes
, string
, NULL
,
3582 PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3586 add_prefix (&exec_prefixes
, value
, NULL
,
3587 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3588 add_prefix (&startfile_prefixes
, value
, NULL
,
3589 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
, 0);
3590 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3591 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
, 0);
3596 case 'v': /* Print our subcommands and print versions. */
3598 /* If they do anything other than exactly `-v', don't set
3599 verbose_flag; rather, continue on to give the error. */
3617 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3622 /* Forward scan, just in case -S or -c is specified
3629 if (argv
[j
][0] == '-')
3631 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3637 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3638 j
+= skip
- (argv
[j
][2] != 0);
3639 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3646 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3648 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3650 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3657 #ifdef MODIFY_TARGET_NAME
3658 is_modify_target_name
= 0;
3660 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3661 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3663 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3664 + strlen (spec_machine
));
3667 int made_addition
= 0;
3669 is_modify_target_name
= 1;
3670 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3672 if (modify_target
[j
].add_del
== DELETE
3673 && (! strncmp (q
, modify_target
[j
].str
,
3674 strlen (modify_target
[j
].str
))))
3675 p
+= strlen (modify_target
[j
].str
);
3676 else if (modify_target
[j
].add_del
== ADD
3677 && ! made_addition
&& *p
== '-')
3679 for (r
= modify_target
[j
].str
; *r
!= 0; )
3687 spec_machine
= new_name
;
3690 if (is_modify_target_name
)
3696 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3697 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3698 else if (WORD_SWITCH_TAKES_ARG (p
))
3699 i
+= WORD_SWITCH_TAKES_ARG (p
);
3709 combine_inputs
= (have_c
&& have_o
&& lang_n_infiles
> 1);
3711 if ((save_temps_flag
|| report_times
) && use_pipes
)
3713 /* -save-temps overrides -pipe, so that temp files are produced */
3714 if (save_temps_flag
)
3715 error ("warning: -pipe ignored because -save-temps specified");
3716 /* -time overrides -pipe because we can't get correct stats when
3717 multiple children are running at once. */
3718 else if (report_times
)
3719 error ("warning: -pipe ignored because -time specified");
3724 /* Set up the search paths before we go looking for config files. */
3726 /* These come before the md prefixes so that we will find gcc's subcommands
3727 (such as cpp) rather than those of the host system. */
3728 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3729 as well as trying the machine and the version. */
3731 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3732 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3733 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3734 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3735 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3736 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3737 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3738 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3739 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3740 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
, 0);
3743 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3744 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3745 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3746 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
, 0);
3748 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3749 dir_separator_str
, NULL
);
3751 /* If tooldir is relative, base it on exec_prefixes. A relative
3752 tooldir lets us move the installed tree as a unit.
3754 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3755 directories, so that we can search both the user specified directory
3756 and the standard place. */
3758 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3760 if (gcc_exec_prefix
)
3762 char *gcc_exec_tooldir_prefix
3763 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3764 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3766 add_prefix (&exec_prefixes
,
3767 concat (gcc_exec_tooldir_prefix
, "bin",
3768 dir_separator_str
, NULL
),
3769 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3770 add_prefix (&startfile_prefixes
,
3771 concat (gcc_exec_tooldir_prefix
, "lib",
3772 dir_separator_str
, NULL
),
3773 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3776 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3777 dir_separator_str
, spec_version
,
3778 dir_separator_str
, tooldir_prefix
, NULL
);
3781 add_prefix (&exec_prefixes
,
3782 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3783 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
3784 add_prefix (&startfile_prefixes
,
3785 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3786 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
3788 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3789 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3790 then consider it to relocate with the rest of the GCC installation
3791 if GCC_EXEC_PREFIX is set.
3792 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3793 if (target_system_root
&& gcc_exec_prefix
)
3795 char *tmp_prefix
= make_relative_prefix (argv
[0],
3796 standard_bindir_prefix
,
3797 target_system_root
);
3798 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3800 target_system_root
= tmp_prefix
;
3801 target_system_root_changed
= 1;
3806 /* More prefixes are enabled in main, after we read the specs file
3807 and determine whether this is cross-compilation or not. */
3809 /* Then create the space for the vectors and scan again. */
3811 switches
= xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
));
3812 infiles
= xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3815 last_language_n_infiles
= -1;
3817 /* This, time, copy the text of each switch and store a pointer
3818 to the copy in the vector of switches.
3819 Store all the infiles in their vector. */
3821 for (i
= 1; i
< argc
; i
++)
3823 /* Just skip the switches that were handled by the preceding loop. */
3824 #ifdef MODIFY_TARGET_NAME
3825 is_modify_target_name
= 0;
3827 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3828 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3829 is_modify_target_name
= 1;
3831 if (is_modify_target_name
)
3835 if (! strncmp (argv
[i
], "-Wa,", 4))
3837 else if (! strncmp (argv
[i
], "-Wp,", 4))
3839 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3841 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3843 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3845 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3847 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3849 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3851 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3853 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3855 else if (! strcmp (argv
[i
], "-ftarget-help"))
3857 else if (! strcmp (argv
[i
], "-fhelp"))
3859 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3861 /* Compensate for the +e options to the C++ front-end;
3862 they're there simply for cfront call-compatibility. We do
3863 some magic in default_compilers to pass them down properly.
3864 Note we deliberately start at the `+' here, to avoid passing
3865 -e0 or -e1 down into the linker. */
3866 switches
[n_switches
].part1
= &argv
[i
][0];
3867 switches
[n_switches
].args
= 0;
3868 switches
[n_switches
].live_cond
= SWITCH_OK
;
3869 switches
[n_switches
].validated
= 0;
3872 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3875 /* Split the argument at commas. */
3877 for (j
= 4; argv
[i
][j
]; j
++)
3878 if (argv
[i
][j
] == ',')
3880 infiles
[n_infiles
].language
= "*";
3881 infiles
[n_infiles
++].name
3882 = save_string (argv
[i
] + prev
, j
- prev
);
3885 /* Record the part after the last comma. */
3886 infiles
[n_infiles
].language
= "*";
3887 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3889 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3891 infiles
[n_infiles
].language
= "*";
3892 infiles
[n_infiles
++].name
= argv
[++i
];
3894 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3896 infiles
[n_infiles
].language
= "*";
3897 infiles
[n_infiles
++].name
= argv
[++i
];
3899 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3901 infiles
[n_infiles
].language
= "*";
3902 infiles
[n_infiles
++].name
= argv
[++i
];
3904 else if (strcmp (argv
[i
], "-l") == 0)
3905 { /* POSIX allows separation of -l and the lib arg;
3906 canonicalize by concatenating -l with its arg */
3907 infiles
[n_infiles
].language
= "*";
3908 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3910 else if (strncmp (argv
[i
], "-l", 2) == 0)
3912 infiles
[n_infiles
].language
= "*";
3913 infiles
[n_infiles
++].name
= argv
[i
];
3915 else if (strcmp (argv
[i
], "-specs") == 0)
3917 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3919 else if (strcmp (argv
[i
], "-time") == 0)
3921 else if (strcmp (argv
[i
], "-###") == 0)
3923 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3925 const char *p
= &argv
[i
][1];
3930 if (p
[1] == 0 && i
+ 1 == argc
)
3931 fatal ("argument to `-x' is missing");
3933 spec_lang
= argv
[++i
];
3936 if (! strcmp (spec_lang
, "none"))
3937 /* Suppress the warning if -xnone comes after the last input
3938 file, because alternate command interfaces like g++ might
3939 find it useful to place -xnone after each input file. */
3942 last_language_n_infiles
= n_infiles
;
3945 switches
[n_switches
].part1
= p
;
3946 /* Deal with option arguments in separate argv elements. */
3947 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3948 || WORD_SWITCH_TAKES_ARG (p
))
3951 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3955 /* Count only the option arguments in separate argv elements. */
3956 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3958 if (i
+ n_args
>= argc
)
3959 fatal ("argument to `-%s' is missing", p
);
3960 switches
[n_switches
].args
3961 = xmalloc ((n_args
+ 1) * sizeof(const char *));
3963 switches
[n_switches
].args
[j
++] = argv
[++i
];
3964 /* Null-terminate the vector. */
3965 switches
[n_switches
].args
[j
] = 0;
3967 else if (strchr (switches_need_spaces
, c
))
3969 /* On some systems, ld cannot handle some options without
3970 a space. So split the option from its argument. */
3971 char *part1
= xmalloc (2);
3975 switches
[n_switches
].part1
= part1
;
3976 switches
[n_switches
].args
= xmalloc (2 * sizeof (const char *));
3977 switches
[n_switches
].args
[0] = xstrdup (p
+1);
3978 switches
[n_switches
].args
[1] = 0;
3981 switches
[n_switches
].args
= 0;
3983 switches
[n_switches
].live_cond
= SWITCH_OK
;
3984 switches
[n_switches
].validated
= 0;
3985 switches
[n_switches
].ordering
= 0;
3986 /* These are always valid, since gcc.c itself understands them. */
3987 if (!strcmp (p
, "save-temps")
3988 || !strcmp (p
, "static-libgcc")
3989 || !strcmp (p
, "shared-libgcc")
3990 || !strcmp (p
, "pipe"))
3991 switches
[n_switches
].validated
= 1;
3994 char ch
= switches
[n_switches
].part1
[0];
3996 switches
[n_switches
].validated
= 1;
4002 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4003 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4006 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4008 perror_with_name (argv
[i
]);
4013 infiles
[n_infiles
].language
= spec_lang
;
4014 infiles
[n_infiles
++].name
= argv
[i
];
4019 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4020 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4022 /* Ensure we only invoke each subprocess once. */
4023 if (target_help_flag
|| print_help_list
)
4027 /* Create a dummy input file, so that we can pass --target-help on to
4028 the various sub-processes. */
4029 infiles
[0].language
= "c";
4030 infiles
[0].name
= "help-dummy";
4032 if (target_help_flag
)
4034 switches
[n_switches
].part1
= "--target-help";
4035 switches
[n_switches
].args
= 0;
4036 switches
[n_switches
].live_cond
= SWITCH_OK
;
4037 switches
[n_switches
].validated
= 0;
4042 if (print_help_list
)
4044 switches
[n_switches
].part1
= "--help";
4045 switches
[n_switches
].args
= 0;
4046 switches
[n_switches
].live_cond
= SWITCH_OK
;
4047 switches
[n_switches
].validated
= 0;
4053 switches
[n_switches
].part1
= 0;
4054 infiles
[n_infiles
].name
= 0;
4057 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4058 and place that in the environment. */
4061 set_collect_gcc_options (void)
4066 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4068 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4069 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4072 for (i
= 0; (int) i
< n_switches
; i
++)
4074 const char *const *args
;
4077 obstack_grow (&collect_obstack
, " ", 1);
4081 /* Ignore elided switches. */
4082 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4085 obstack_grow (&collect_obstack
, "'-", 2);
4086 q
= switches
[i
].part1
;
4087 while ((p
= strchr (q
, '\'')))
4089 obstack_grow (&collect_obstack
, q
, p
- q
);
4090 obstack_grow (&collect_obstack
, "'\\''", 4);
4093 obstack_grow (&collect_obstack
, q
, strlen (q
));
4094 obstack_grow (&collect_obstack
, "'", 1);
4096 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4098 obstack_grow (&collect_obstack
, " '", 2);
4100 while ((p
= strchr (q
, '\'')))
4102 obstack_grow (&collect_obstack
, q
, p
- q
);
4103 obstack_grow (&collect_obstack
, "'\\''", 4);
4106 obstack_grow (&collect_obstack
, q
, strlen (q
));
4107 obstack_grow (&collect_obstack
, "'", 1);
4110 obstack_grow (&collect_obstack
, "\0", 1);
4111 putenv (obstack_finish (&collect_obstack
));
4114 /* Process a spec string, accumulating and running commands. */
4116 /* These variables describe the input file name.
4117 input_file_number is the index on outfiles of this file,
4118 so that the output file name can be stored for later use by %o.
4119 input_basename is the start of the part of the input file
4120 sans all directory names, and basename_length is the number
4121 of characters starting there excluding the suffix .c or whatever. */
4123 static const char *input_filename
;
4124 static int input_file_number
;
4125 size_t input_filename_length
;
4126 static int basename_length
;
4127 static int suffixed_basename_length
;
4128 static const char *input_basename
;
4129 static const char *input_suffix
;
4130 static struct stat input_stat
;
4131 static int input_stat_set
;
4133 /* The compiler used to process the current input file. */
4134 static struct compiler
*input_file_compiler
;
4136 /* These are variables used within do_spec and do_spec_1. */
4138 /* Nonzero if an arg has been started and not yet terminated
4139 (with space, tab or newline). */
4140 static int arg_going
;
4142 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4143 is a temporary file name. */
4144 static int delete_this_arg
;
4146 /* Nonzero means %w has been seen; the next arg to be terminated
4147 is the output file name of this compilation. */
4148 static int this_is_output_file
;
4150 /* Nonzero means %s has been seen; the next arg to be terminated
4151 is the name of a library file and we should try the standard
4152 search dirs for it. */
4153 static int this_is_library_file
;
4155 /* Nonzero means that the input of this command is coming from a pipe. */
4156 static int input_from_pipe
;
4158 /* Nonnull means substitute this for any suffix when outputting a switches
4160 static const char *suffix_subst
;
4162 /* Process the spec SPEC and run the commands specified therein.
4163 Returns 0 if the spec is successfully processed; -1 if failed. */
4166 do_spec (const char *spec
)
4170 value
= do_spec_2 (spec
);
4172 /* Force out any unfinished command.
4173 If -pipe, this forces out the last command if it ended in `|'. */
4176 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4179 set_collect_gcc_options ();
4181 if (argbuf_index
> 0)
4189 do_spec_2 (const char *spec
)
4196 delete_this_arg
= 0;
4197 this_is_output_file
= 0;
4198 this_is_library_file
= 0;
4199 input_from_pipe
= 0;
4200 suffix_subst
= NULL
;
4202 result
= do_spec_1 (spec
, 0, NULL
);
4204 /* End any pending argument. */
4207 obstack_1grow (&obstack
, 0);
4208 string
= obstack_finish (&obstack
);
4209 if (this_is_library_file
)
4210 string
= find_file (string
);
4211 store_arg (string
, delete_this_arg
, this_is_output_file
);
4212 if (this_is_output_file
)
4213 outfiles
[input_file_number
] = string
;
4221 /* Process the given spec string and add any new options to the end
4222 of the switches/n_switches array. */
4225 do_option_spec (const char *name
, const char *spec
)
4227 unsigned int i
, value_count
, value_len
;
4228 const char *p
, *q
, *value
;
4229 char *tmp_spec
, *tmp_spec_p
;
4231 if (configure_default_options
[0].name
== NULL
)
4234 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4235 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4237 if (i
== ARRAY_SIZE (configure_default_options
))
4240 value
= configure_default_options
[i
].value
;
4241 value_len
= strlen (value
);
4243 /* Compute the size of the final spec. */
4246 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4252 /* Replace each %(VALUE) by the specified value. */
4253 tmp_spec
= alloca (strlen (spec
) + 1
4254 + value_count
* (value_len
- strlen ("%(VALUE)")));
4255 tmp_spec_p
= tmp_spec
;
4257 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4259 memcpy (tmp_spec_p
, q
, p
- q
);
4260 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4261 memcpy (tmp_spec_p
, value
, value_len
);
4262 tmp_spec_p
+= value_len
;
4263 q
= p
+ strlen ("%(VALUE)");
4265 strcpy (tmp_spec_p
, q
);
4267 do_self_spec (tmp_spec
);
4270 /* Process the given spec string and add any new options to the end
4271 of the switches/n_switches array. */
4274 do_self_spec (const char *spec
)
4277 do_spec_1 (" ", 0, NULL
);
4279 if (argbuf_index
> 0)
4284 n_switches
+= argbuf_index
;
4285 switches
= xrealloc (switches
,
4286 sizeof (struct switchstr
) * (n_switches
+ 1));
4288 switches
[n_switches
] = switches
[first
];
4289 for (i
= 0; i
< argbuf_index
; i
++)
4291 struct switchstr
*sw
;
4293 /* Each switch should start with '-'. */
4294 if (argbuf
[i
][0] != '-')
4297 sw
= &switches
[i
+ first
];
4298 sw
->part1
= &argbuf
[i
][1];
4300 sw
->live_cond
= SWITCH_OK
;
4307 /* Process the sub-spec SPEC as a portion of a larger spec.
4308 This is like processing a whole spec except that we do
4309 not initialize at the beginning and we do not supply a
4310 newline by default at the end.
4311 INSWITCH nonzero means don't process %-sequences in SPEC;
4312 in this case, % is treated as an ordinary character.
4313 This is used while substituting switches.
4314 INSWITCH nonzero also causes SPC not to terminate an argument.
4316 Value is zero unless a line was finished
4317 and the command on that line reported an error. */
4320 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4322 const char *p
= spec
;
4329 /* If substituting a switch, treat all chars like letters.
4330 Otherwise, NL, SPC, TAB and % are special. */
4331 switch (inswitch
? 'a' : c
)
4334 /* End of line: finish any pending argument,
4335 then run the pending command if one has been started. */
4338 obstack_1grow (&obstack
, 0);
4339 string
= obstack_finish (&obstack
);
4340 if (this_is_library_file
)
4341 string
= find_file (string
);
4342 store_arg (string
, delete_this_arg
, this_is_output_file
);
4343 if (this_is_output_file
)
4344 outfiles
[input_file_number
] = string
;
4348 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4350 /* A `|' before the newline means use a pipe here,
4351 but only if -pipe was specified.
4352 Otherwise, execute now and don't pass the `|' as an arg. */
4355 input_from_pipe
= 1;
4362 set_collect_gcc_options ();
4364 if (argbuf_index
> 0)
4370 /* Reinitialize for a new command, and for a new argument. */
4373 delete_this_arg
= 0;
4374 this_is_output_file
= 0;
4375 this_is_library_file
= 0;
4376 input_from_pipe
= 0;
4380 /* End any pending argument. */
4383 obstack_1grow (&obstack
, 0);
4384 string
= obstack_finish (&obstack
);
4385 if (this_is_library_file
)
4386 string
= find_file (string
);
4387 store_arg (string
, delete_this_arg
, this_is_output_file
);
4388 if (this_is_output_file
)
4389 outfiles
[input_file_number
] = string
;
4393 obstack_1grow (&obstack
, c
);
4399 /* Space or tab ends an argument if one is pending. */
4402 obstack_1grow (&obstack
, 0);
4403 string
= obstack_finish (&obstack
);
4404 if (this_is_library_file
)
4405 string
= find_file (string
);
4406 store_arg (string
, delete_this_arg
, this_is_output_file
);
4407 if (this_is_output_file
)
4408 outfiles
[input_file_number
] = string
;
4410 /* Reinitialize for a new argument. */
4412 delete_this_arg
= 0;
4413 this_is_output_file
= 0;
4414 this_is_library_file
= 0;
4421 fatal ("invalid specification! Bug in cc");
4424 obstack_grow (&obstack
, input_basename
, basename_length
);
4429 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4434 delete_this_arg
= 2;
4437 /* Dump out the directories specified with LIBRARY_PATH,
4438 followed by the absolute directories
4439 that we search for startfiles. */
4442 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4443 size_t bufsize
= 100;
4444 char *buffer
= xmalloc (bufsize
);
4447 for (; pl
; pl
= pl
->next
)
4449 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4450 /* Used on systems which record the specified -L dirs
4451 and use them to search for dynamic linking. */
4452 /* Relative directories always come from -B,
4453 and it is better not to use them for searching
4454 at run time. In particular, stage1 loses. */
4455 if (!IS_ABSOLUTE_PATH (pl
->prefix
))
4458 /* Try subdirectory if there is one. */
4459 if (multilib_dir
!= NULL
4460 || (pl
->os_multilib
&& multilib_os_dir
!= NULL
))
4462 const char *multi_dir
;
4464 multi_dir
= pl
->os_multilib
? multilib_os_dir
4466 if (machine_suffix
&& multilib_dir
)
4468 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4470 bufsize
= (strlen (pl
->prefix
)
4471 + strlen (machine_suffix
)) * 2 + 1;
4472 buffer
= xrealloc (buffer
, bufsize
);
4473 strcpy (buffer
, pl
->prefix
);
4474 strcat (buffer
, machine_suffix
);
4475 if (is_directory (buffer
, multilib_dir
, 1))
4477 do_spec_1 ("-L", 0, NULL
);
4478 #ifdef SPACE_AFTER_L_OPTION
4479 do_spec_1 (" ", 0, NULL
);
4481 do_spec_1 (buffer
, 1, NULL
);
4482 do_spec_1 (multilib_dir
, 1, NULL
);
4483 /* Make this a separate argument. */
4484 do_spec_1 (" ", 0, NULL
);
4487 if (!pl
->require_machine_suffix
)
4489 if (is_directory (pl
->prefix
, multi_dir
, 1))
4491 do_spec_1 ("-L", 0, NULL
);
4492 #ifdef SPACE_AFTER_L_OPTION
4493 do_spec_1 (" ", 0, NULL
);
4495 do_spec_1 (pl
->prefix
, 1, NULL
);
4496 do_spec_1 (multi_dir
, 1, NULL
);
4497 /* Make this a separate argument. */
4498 do_spec_1 (" ", 0, NULL
);
4504 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4506 do_spec_1 ("-L", 0, NULL
);
4507 #ifdef SPACE_AFTER_L_OPTION
4508 do_spec_1 (" ", 0, NULL
);
4510 do_spec_1 (pl
->prefix
, 1, NULL
);
4511 /* Remove slash from machine_suffix. */
4512 if (strlen (machine_suffix
) >= bufsize
)
4513 bufsize
= strlen (machine_suffix
) * 2 + 1;
4514 buffer
= xrealloc (buffer
, bufsize
);
4515 strcpy (buffer
, machine_suffix
);
4516 idx
= strlen (buffer
);
4517 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4518 buffer
[idx
- 1] = 0;
4519 do_spec_1 (buffer
, 1, NULL
);
4520 /* Make this a separate argument. */
4521 do_spec_1 (" ", 0, NULL
);
4524 if (!pl
->require_machine_suffix
)
4526 if (is_directory (pl
->prefix
, "", 1))
4528 do_spec_1 ("-L", 0, NULL
);
4529 #ifdef SPACE_AFTER_L_OPTION
4530 do_spec_1 (" ", 0, NULL
);
4532 /* Remove slash from pl->prefix. */
4533 if (strlen (pl
->prefix
) >= bufsize
)
4534 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4535 buffer
= xrealloc (buffer
, bufsize
);
4536 strcpy (buffer
, pl
->prefix
);
4537 idx
= strlen (buffer
);
4538 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4539 buffer
[idx
- 1] = 0;
4540 do_spec_1 (buffer
, 1, NULL
);
4541 /* Make this a separate argument. */
4542 do_spec_1 (" ", 0, NULL
);
4551 /* %efoo means report an error with `foo' as error message
4552 and don't execute any more commands for this file. */
4556 while (*p
!= 0 && *p
!= '\n')
4558 buf
= alloca (p
- q
+ 1);
4559 strncpy (buf
, q
, p
- q
);
4566 /* %nfoo means report a notice with `foo' on stderr. */
4570 while (*p
!= 0 && *p
!= '\n')
4572 buf
= alloca (p
- q
+ 1);
4573 strncpy (buf
, q
, p
- q
);
4575 notice ("%s\n", buf
);
4585 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4586 defined, and it is not a directory, and it is
4587 writable, use it. Otherwise, treat this like any
4588 other temporary file. */
4590 if ((!save_temps_flag
)
4591 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4592 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4594 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4595 strlen (HOST_BIT_BUCKET
));
4596 delete_this_arg
= 0;
4601 goto create_temp_file
;
4605 obstack_1grow (&obstack
, '-');
4606 delete_this_arg
= 0;
4609 /* consume suffix */
4610 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4612 if (p
[0] == '%' && p
[1] == 'O')
4617 goto create_temp_file
;
4621 /* consume suffix */
4622 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4624 if (p
[0] == '%' && p
[1] == 'O')
4629 goto create_temp_file
;
4635 struct temp_name
*t
;
4637 const char *suffix
= p
;
4638 char *saved_suffix
= NULL
;
4640 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4642 suffix_length
= p
- suffix
;
4643 if (p
[0] == '%' && p
[1] == 'O')
4646 /* We don't support extra suffix characters after %O. */
4647 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4649 if (suffix_length
== 0)
4650 suffix
= TARGET_OBJECT_SUFFIX
;
4654 = xmalloc (suffix_length
4655 + strlen (TARGET_OBJECT_SUFFIX
));
4656 strncpy (saved_suffix
, suffix
, suffix_length
);
4657 strcpy (saved_suffix
+ suffix_length
,
4658 TARGET_OBJECT_SUFFIX
);
4660 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4663 /* If the input_filename has the same suffix specified
4664 for the %g, %u, or %U, and -save-temps is specified,
4665 we could end up using that file as an intermediate
4666 thus clobbering the user's source file (.e.g.,
4667 gcc -save-temps foo.s would clobber foo.s with the
4668 output of cpp0). So check for this condition and
4669 generate a temp file as the intermediate. */
4671 if (save_temps_flag
)
4673 temp_filename_length
= basename_length
+ suffix_length
;
4674 temp_filename
= alloca (temp_filename_length
+ 1);
4675 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4676 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4678 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4679 if (strcmp (temp_filename
, input_filename
) != 0)
4681 struct stat st_temp
;
4683 /* Note, set_input() resets input_stat_set to 0. */
4684 if (input_stat_set
== 0)
4686 input_stat_set
= stat (input_filename
, &input_stat
);
4687 if (input_stat_set
>= 0)
4691 /* If we have the stat for the input_filename
4692 and we can do the stat for the temp_filename
4693 then the they could still refer to the same
4694 file if st_dev/st_ino's are the same. */
4696 if (input_stat_set
!= 1
4697 || stat (temp_filename
, &st_temp
) < 0
4698 || input_stat
.st_dev
!= st_temp
.st_dev
4699 || input_stat
.st_ino
!= st_temp
.st_ino
)
4701 temp_filename
= save_string (temp_filename
,
4702 temp_filename_length
+ 1);
4703 obstack_grow (&obstack
, temp_filename
,
4704 temp_filename_length
);
4706 delete_this_arg
= 0;
4712 /* See if we already have an association of %g/%u/%U and
4714 for (t
= temp_names
; t
; t
= t
->next
)
4715 if (t
->length
== suffix_length
4716 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4717 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4720 /* Make a new association if needed. %u and %j
4722 if (t
== 0 || c
== 'u' || c
== 'j')
4726 t
= xmalloc (sizeof (struct temp_name
));
4727 t
->next
= temp_names
;
4730 t
->length
= suffix_length
;
4733 t
->suffix
= saved_suffix
;
4734 saved_suffix
= NULL
;
4737 t
->suffix
= save_string (suffix
, suffix_length
);
4738 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4739 temp_filename
= make_temp_file (t
->suffix
);
4740 temp_filename_length
= strlen (temp_filename
);
4741 t
->filename
= temp_filename
;
4742 t
->filename_length
= temp_filename_length
;
4746 free (saved_suffix
);
4748 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4749 delete_this_arg
= 1;
4757 for (i
= 0; (int) i
< n_infiles
; i
++)
4758 store_arg (infiles
[i
].name
, 0, 0);
4762 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4769 struct prefix_list
*pl
= include_prefixes
.plist
;
4771 if (gcc_exec_prefix
)
4773 do_spec_1 ("-iprefix", 1, NULL
);
4774 /* Make this a separate argument. */
4775 do_spec_1 (" ", 0, NULL
);
4776 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4777 do_spec_1 (" ", 0, NULL
);
4780 if (target_system_root_changed
||
4781 (target_system_root
&& target_sysroot_hdrs_suffix
))
4783 do_spec_1 ("-isysroot", 1, NULL
);
4784 /* Make this a separate argument. */
4785 do_spec_1 (" ", 0, NULL
);
4786 do_spec_1 (target_system_root
, 1, NULL
);
4787 if (target_sysroot_hdrs_suffix
)
4788 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4789 do_spec_1 (" ", 0, NULL
);
4792 for (; pl
; pl
= pl
->next
)
4794 do_spec_1 ("-isystem", 1, NULL
);
4795 /* Make this a separate argument. */
4796 do_spec_1 (" ", 0, NULL
);
4797 do_spec_1 (pl
->prefix
, 1, NULL
);
4798 do_spec_1 (" ", 0, NULL
);
4805 int max
= n_infiles
;
4806 max
+= lang_specific_extra_outfiles
;
4808 for (i
= 0; i
< max
; i
++)
4810 store_arg (outfiles
[i
], 0, 0);
4815 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4820 this_is_library_file
= 1;
4824 outfiles
[input_file_number
] = NULL
;
4828 this_is_output_file
= 1;
4833 int cur_index
= argbuf_index
;
4834 /* Handle the {...} following the %W. */
4837 p
= handle_braces (p
+ 1);
4840 /* End any pending argument. */
4843 obstack_1grow (&obstack
, 0);
4844 string
= obstack_finish (&obstack
);
4845 if (this_is_library_file
)
4846 string
= find_file (string
);
4847 store_arg (string
, delete_this_arg
, this_is_output_file
);
4848 if (this_is_output_file
)
4849 outfiles
[input_file_number
] = string
;
4852 /* If any args were output, mark the last one for deletion
4854 if (argbuf_index
!= cur_index
)
4855 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4859 /* %x{OPTION} records OPTION for %X to output. */
4865 /* Skip past the option value and make a copy. */
4870 string
= save_string (p1
+ 1, p
- p1
- 2);
4872 /* See if we already recorded this option. */
4873 for (i
= 0; i
< n_linker_options
; i
++)
4874 if (! strcmp (string
, linker_options
[i
]))
4880 /* This option is new; add it. */
4881 add_linker_option (string
, strlen (string
));
4885 /* Dump out the options accumulated previously using %x. */
4887 for (i
= 0; i
< n_linker_options
; i
++)
4889 do_spec_1 (linker_options
[i
], 1, NULL
);
4890 /* Make each accumulated option a separate argument. */
4891 do_spec_1 (" ", 0, NULL
);
4895 /* Dump out the options accumulated previously using -Wa,. */
4897 for (i
= 0; i
< n_assembler_options
; i
++)
4899 do_spec_1 (assembler_options
[i
], 1, NULL
);
4900 /* Make each accumulated option a separate argument. */
4901 do_spec_1 (" ", 0, NULL
);
4905 /* Dump out the options accumulated previously using -Wp,. */
4907 for (i
= 0; i
< n_preprocessor_options
; i
++)
4909 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4910 /* Make each accumulated option a separate argument. */
4911 do_spec_1 (" ", 0, NULL
);
4915 /* Here are digits and numbers that just process
4916 a certain constant string as a spec. */
4919 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4925 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4931 value
= do_spec_1 (asm_spec
, 0, NULL
);
4937 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4944 const char *const spec
4945 = (input_file_compiler
->cpp_spec
4946 ? input_file_compiler
->cpp_spec
4948 value
= do_spec_1 (spec
, 0, NULL
);
4955 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4961 value
= do_spec_1 (link_spec
, 0, NULL
);
4967 value
= do_spec_1 (lib_spec
, 0, NULL
);
4973 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4979 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4985 len
= strlen (multilib_dir
);
4986 obstack_blank (&obstack
, len
+ 1);
4987 p
= obstack_next_free (&obstack
) - (len
+ 1);
4990 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4991 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4996 /* We assume there is a directory
4997 separator at the end of this string. */
4998 if (target_system_root
)
5000 obstack_grow (&obstack
, target_system_root
,
5001 strlen (target_system_root
));
5002 if (target_sysroot_suffix
)
5003 obstack_grow (&obstack
, target_sysroot_suffix
,
5004 strlen (target_sysroot_suffix
));
5009 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5014 /* Here we define characters other than letters and digits. */
5017 p
= handle_braces (p
);
5023 p
= handle_spec_function (p
);
5029 obstack_1grow (&obstack
, '%');
5036 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5038 suffix_subst
= save_string (p
- 1, len
+ 1);
5043 /* Henceforth ignore the option(s) matching the pattern
5048 int have_wildcard
= 0;
5051 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5054 if (p
[len
-1] == '*')
5057 for (i
= 0; i
< n_switches
; i
++)
5058 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5059 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5061 switches
[i
].live_cond
= SWITCH_IGNORE
;
5062 switches
[i
].validated
= 1;
5070 if (soft_matched_part
)
5072 do_spec_1 (soft_matched_part
, 1, NULL
);
5073 do_spec_1 (" ", 0, NULL
);
5076 /* Catch the case where a spec string contains something like
5077 '%{foo:%*}'. ie there is no * in the pattern on the left
5078 hand side of the :. */
5079 error ("spec failure: '%%*' has not been initialized by pattern match");
5082 /* Process a string found as the value of a spec given by name.
5083 This feature allows individual machine descriptions
5084 to add and use their own specs.
5085 %[...] modifies -D options the way %P does;
5086 %(...) uses the spec unmodified. */
5088 error ("warning: use of obsolete %%[ operator in specs");
5091 const char *name
= p
;
5092 struct spec_list
*sl
;
5095 /* The string after the S/P is the name of a spec that is to be
5097 while (*p
&& *p
!= ')' && *p
!= ']')
5100 /* See if it's in the list. */
5101 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5102 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5104 name
= *(sl
->ptr_spec
);
5106 notice ("Processing spec %c%s%c, which is '%s'\n",
5107 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5116 value
= do_spec_1 (name
, 0, NULL
);
5122 char *x
= alloca (strlen (name
) * 2 + 1);
5124 const char *y
= name
;
5127 /* Copy all of NAME into BUF, but put __ after
5128 every -D and at the end of each arg. */
5131 if (! strncmp (y
, "-D", 2))
5142 && (*y
== ' ' || *y
== '\t' || *y
== '='
5143 || *y
== '}' || *y
== 0))
5156 value
= do_spec_1 (buf
, 0, NULL
);
5162 /* Discard the closing paren or bracket. */
5169 error ("spec failure: unrecognized spec option '%c'", c
);
5175 /* Backslash: treat next character as ordinary. */
5180 /* Ordinary character: put it into the current argument. */
5181 obstack_1grow (&obstack
, c
);
5185 /* End of string. If we are processing a spec function, we need to
5186 end any pending argument. */
5187 if (processing_spec_function
&& arg_going
)
5189 obstack_1grow (&obstack
, 0);
5190 string
= obstack_finish (&obstack
);
5191 if (this_is_library_file
)
5192 string
= find_file (string
);
5193 store_arg (string
, delete_this_arg
, this_is_output_file
);
5194 if (this_is_output_file
)
5195 outfiles
[input_file_number
] = string
;
5202 /* Look up a spec function. */
5204 static const struct spec_function
*
5205 lookup_spec_function (const char *name
)
5207 static const struct spec_function
* const spec_function_tables
[] =
5209 static_spec_functions
,
5210 lang_specific_spec_functions
,
5212 const struct spec_function
*sf
;
5215 for (i
= 0; i
< ARRAY_SIZE (spec_function_tables
); i
++)
5217 for (sf
= spec_function_tables
[i
]; sf
->name
!= NULL
; sf
++)
5218 if (strcmp (sf
->name
, name
) == 0)
5225 /* Evaluate a spec function. */
5228 eval_spec_function (const char *func
, const char *args
)
5230 const struct spec_function
*sf
;
5231 const char *funcval
;
5233 /* Saved spec processing context. */
5234 int save_argbuf_index
;
5235 int save_argbuf_length
;
5236 const char **save_argbuf
;
5239 int save_delete_this_arg
;
5240 int save_this_is_output_file
;
5241 int save_this_is_library_file
;
5242 int save_input_from_pipe
;
5243 const char *save_suffix_subst
;
5246 sf
= lookup_spec_function (func
);
5248 fatal ("unknown spec function `%s'", func
);
5250 /* Push the spec processing context. */
5251 save_argbuf_index
= argbuf_index
;
5252 save_argbuf_length
= argbuf_length
;
5253 save_argbuf
= argbuf
;
5255 save_arg_going
= arg_going
;
5256 save_delete_this_arg
= delete_this_arg
;
5257 save_this_is_output_file
= this_is_output_file
;
5258 save_this_is_library_file
= this_is_library_file
;
5259 save_input_from_pipe
= input_from_pipe
;
5260 save_suffix_subst
= suffix_subst
;
5262 /* Create a new spec processing context, and build the function
5266 if (do_spec_2 (args
) < 0)
5267 fatal ("error in args to spec function `%s'", func
);
5269 /* argbuf_index is an index for the next argument to be inserted, and
5270 so contains the count of the args already inserted. */
5272 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5274 /* Pop the spec processing context. */
5275 argbuf_index
= save_argbuf_index
;
5276 argbuf_length
= save_argbuf_length
;
5278 argbuf
= save_argbuf
;
5280 arg_going
= save_arg_going
;
5281 delete_this_arg
= save_delete_this_arg
;
5282 this_is_output_file
= save_this_is_output_file
;
5283 this_is_library_file
= save_this_is_library_file
;
5284 input_from_pipe
= save_input_from_pipe
;
5285 suffix_subst
= save_suffix_subst
;
5290 /* Handle a spec function call of the form:
5294 ARGS is processed as a spec in a separate context and split into an
5295 argument vector in the normal fashion. The function returns a string
5296 containing a spec which we then process in the caller's context, or
5297 NULL if no processing is required. */
5300 handle_spec_function (const char *p
)
5303 const char *endp
, *funcval
;
5306 processing_spec_function
++;
5308 /* Get the function name. */
5309 for (endp
= p
; *endp
!= '\0'; endp
++)
5311 if (*endp
== '(') /* ) */
5313 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5314 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5315 fatal ("malformed spec function name");
5317 if (*endp
!= '(') /* ) */
5318 fatal ("no arguments for spec function");
5319 func
= save_string (p
, endp
- p
);
5322 /* Get the arguments. */
5323 for (count
= 0; *endp
!= '\0'; endp
++)
5332 else if (*endp
== '(') /* ) */
5337 fatal ("malformed spec function arguments");
5338 args
= save_string (p
, endp
- p
);
5341 /* p now points to just past the end of the spec function expression. */
5343 funcval
= eval_spec_function (func
, args
);
5344 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5350 processing_spec_function
--;
5355 /* Inline subroutine of handle_braces. Returns true if the current
5356 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5358 input_suffix_matches (const char *atom
, const char *end_atom
)
5360 return (input_suffix
5361 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5362 && input_suffix
[end_atom
- atom
] == '\0');
5365 /* Inline subroutine of handle_braces. Returns true if a switch
5366 matching the atom bracketed by ATOM and END_ATOM appeared on the
5369 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5372 int len
= end_atom
- atom
;
5373 int plen
= starred
? len
: -1;
5375 for (i
= 0; i
< n_switches
; i
++)
5376 if (!strncmp (switches
[i
].part1
, atom
, len
)
5377 && (starred
|| switches
[i
].part1
[len
] == '\0')
5378 && check_live_switch (i
, plen
))
5384 /* Inline subroutine of handle_braces. Mark all of the switches which
5385 match ATOM (extends to END_ATOM; STARRED indicates whether there
5386 was a star after the atom) for later processing. */
5388 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5391 int len
= end_atom
- atom
;
5392 int plen
= starred
? len
: -1;
5394 for (i
= 0; i
< n_switches
; i
++)
5395 if (!strncmp (switches
[i
].part1
, atom
, len
)
5396 && (starred
|| switches
[i
].part1
[len
] == '\0')
5397 && check_live_switch (i
, plen
))
5398 switches
[i
].ordering
= 1;
5401 /* Inline subroutine of handle_braces. Process all the currently
5402 marked switches through give_switch, and clear the marks. */
5404 process_marked_switches (void)
5408 for (i
= 0; i
< n_switches
; i
++)
5409 if (switches
[i
].ordering
== 1)
5411 switches
[i
].ordering
= 0;
5416 /* Handle a %{ ... } construct. P points just inside the leading {.
5417 Returns a pointer one past the end of the brace block, or 0
5418 if we call do_spec_1 and that returns -1. */
5421 handle_braces (const char *p
)
5423 const char *atom
, *end_atom
;
5424 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5431 bool a_must_be_last
= false;
5432 bool ordered_set
= false;
5433 bool disjunct_set
= false;
5434 bool disj_matched
= false;
5435 bool disj_starred
= true;
5436 bool n_way_choice
= false;
5437 bool n_way_matched
= false;
5439 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5446 /* Scan one "atom" (S in the description above of %{}, possibly
5447 with !, ., or * modifiers). */
5448 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5452 p
++, a_is_negated
= true;
5456 p
++, a_is_suffix
= true;
5459 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5460 || *p
== ',' || *p
== '.' || *p
== '@')
5465 p
++, a_is_starred
= 1;
5468 if (*p
== '&' || *p
== '}')
5470 /* Substitute the switch(es) indicated by the current atom. */
5472 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5473 || atom
== end_atom
)
5476 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5479 process_marked_switches ();
5481 else if (*p
== '|' || *p
== ':')
5483 /* Substitute some text if the current atom appears as a switch
5485 disjunct_set
= true;
5489 if (atom
== end_atom
)
5491 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5492 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5495 /* An empty term may appear as the last choice of an
5496 N-way choice set; it means "otherwise". */
5497 a_must_be_last
= true;
5498 disj_matched
= !n_way_matched
;
5499 disj_starred
= false;
5503 if (a_is_suffix
&& a_is_starred
)
5507 disj_starred
= false;
5509 /* Don't bother testing this atom if we already have a
5511 if (!disj_matched
&& !n_way_matched
)
5514 a_matched
= input_suffix_matches (atom
, end_atom
);
5516 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5518 if (a_matched
!= a_is_negated
)
5520 disj_matched
= true;
5522 d_end_atom
= end_atom
;
5529 /* Found the body, that is, the text to substitute if the
5530 current disjunction matches. */
5531 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5532 disj_matched
&& !n_way_matched
);
5536 /* If we have an N-way choice, reset state for the next
5540 n_way_choice
= true;
5541 n_way_matched
|= disj_matched
;
5542 disj_matched
= false;
5543 disj_starred
= true;
5544 d_atom
= d_end_atom
= NULL
;
5551 while (*p
++ != '}');
5558 /* Subroutine of handle_braces. Scan and process a brace substitution body
5559 (X in the description of %{} syntax). P points one past the colon;
5560 ATOM and END_ATOM bracket the first atom which was found to be true
5561 (present) in the current disjunction; STARRED indicates whether all
5562 the atoms in the current disjunction were starred (for syntax validation);
5563 MATCHED indicates whether the disjunction matched or not, and therefore
5564 whether or not the body is to be processed through do_spec_1 or just
5565 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5569 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5570 int starred
, int matched
)
5572 const char *body
, *end_body
;
5573 unsigned int nesting_level
;
5574 bool have_subst
= false;
5576 /* Locate the closing } or ;, honoring nested braces.
5577 Trim trailing whitespace. */
5586 if (!--nesting_level
)
5589 else if (*p
== ';' && nesting_level
== 1)
5591 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5593 else if (*p
== '\0')
5599 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5602 if (have_subst
&& !starred
)
5607 /* Copy the substitution body to permanent storage and execute it.
5608 If have_subst is false, this is a simple matter of running the
5609 body through do_spec_1... */
5610 char *string
= save_string (body
, end_body
- body
);
5613 if (do_spec_1 (string
, 0, NULL
) < 0)
5618 /* ... but if have_subst is true, we have to process the
5619 body once for each matching switch, with %* set to the
5620 variant part of the switch. */
5621 unsigned int hard_match_len
= end_atom
- atom
;
5624 for (i
= 0; i
< n_switches
; i
++)
5625 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5626 && check_live_switch (i
, hard_match_len
))
5628 if (do_spec_1 (string
, 0,
5629 &switches
[i
].part1
[hard_match_len
]) < 0)
5631 /* Pass any arguments this switch has. */
5633 suffix_subst
= NULL
;
5641 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5642 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5643 spec, or -1 if either exact match or %* is used.
5645 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5646 whose value does not begin with "no-" is obsoleted by the same value
5647 with the "no-", similarly for a switch with the "no-" prefix. */
5650 check_live_switch (int switchnum
, int prefix_length
)
5652 const char *name
= switches
[switchnum
].part1
;
5655 /* In the common case of {<at-most-one-letter>*}, a negating
5656 switch would always match, so ignore that case. We will just
5657 send the conflicting switches to the compiler phase. */
5658 if (prefix_length
>= 0 && prefix_length
<= 1)
5661 /* If we already processed this switch and determined if it was
5662 live or not, return our past determination. */
5663 if (switches
[switchnum
].live_cond
!= 0)
5664 return switches
[switchnum
].live_cond
> 0;
5666 /* Now search for duplicate in a manner that depends on the name. */
5670 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5671 if (switches
[i
].part1
[0] == 'O')
5673 switches
[switchnum
].validated
= 1;
5674 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5679 case 'W': case 'f': case 'm':
5680 if (! strncmp (name
+ 1, "no-", 3))
5682 /* We have Xno-YYY, search for XYYY. */
5683 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5684 if (switches
[i
].part1
[0] == name
[0]
5685 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5687 switches
[switchnum
].validated
= 1;
5688 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5694 /* We have XYYY, search for Xno-YYY. */
5695 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5696 if (switches
[i
].part1
[0] == name
[0]
5697 && switches
[i
].part1
[1] == 'n'
5698 && switches
[i
].part1
[2] == 'o'
5699 && switches
[i
].part1
[3] == '-'
5700 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5702 switches
[switchnum
].validated
= 1;
5703 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5710 /* Otherwise the switch is live. */
5711 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5715 /* Pass a switch to the current accumulating command
5716 in the same form that we received it.
5717 SWITCHNUM identifies the switch; it is an index into
5718 the vector of switches gcc received, which is `switches'.
5719 This cannot fail since it never finishes a command line.
5721 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5724 give_switch (int switchnum
, int omit_first_word
)
5726 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5729 if (!omit_first_word
)
5731 do_spec_1 ("-", 0, NULL
);
5732 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5735 if (switches
[switchnum
].args
!= 0)
5738 for (p
= switches
[switchnum
].args
; *p
; p
++)
5740 const char *arg
= *p
;
5742 do_spec_1 (" ", 0, NULL
);
5745 unsigned length
= strlen (arg
);
5748 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5749 if (arg
[length
] == '.')
5751 ((char *)arg
)[length
] = 0;
5755 do_spec_1 (arg
, 1, NULL
);
5757 ((char *)arg
)[length
] = '.';
5758 do_spec_1 (suffix_subst
, 1, NULL
);
5761 do_spec_1 (arg
, 1, NULL
);
5765 do_spec_1 (" ", 0, NULL
);
5766 switches
[switchnum
].validated
= 1;
5769 /* Search for a file named NAME trying various prefixes including the
5770 user's -B prefix and some standard ones.
5771 Return the absolute file name found. If nothing is found, return NAME. */
5774 find_file (const char *name
)
5778 /* Try multilib_dir if it is defined. */
5779 if (multilib_os_dir
!= NULL
)
5781 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 1);
5783 /* If we don't find it in the multi library dir, then fall
5784 through and look for it in the normal places. */
5785 if (newname
!= NULL
)
5789 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, 0);
5790 return newname
? newname
: name
;
5793 /* Determine whether a directory exists. If LINKER, return 0 for
5794 certain fixed names not needed by the linker. If not LINKER, it is
5795 only important to return 0 if the host machine has a small ARG_MAX
5799 is_directory (const char *path1
, const char *path2
, int linker
)
5801 int len1
= strlen (path1
);
5802 int len2
= strlen (path2
);
5803 char *path
= alloca (3 + len1
+ len2
);
5807 #ifndef SMALL_ARG_MAX
5812 /* Construct the path from the two parts. Ensure the string ends with "/.".
5813 The resulting path will be a directory even if the given path is a
5815 memcpy (path
, path1
, len1
);
5816 memcpy (path
+ len1
, path2
, len2
);
5817 cp
= path
+ len1
+ len2
;
5818 if (!IS_DIR_SEPARATOR (cp
[-1]))
5819 *cp
++ = DIR_SEPARATOR
;
5823 /* Exclude directories that the linker is known to search. */
5826 && strcmp (path
, concat (dir_separator_str
, "lib",
5827 dir_separator_str
, ".", NULL
)) == 0)
5829 && strcmp (path
, concat (dir_separator_str
, "usr",
5830 dir_separator_str
, "lib",
5831 dir_separator_str
, ".", NULL
)) == 0)))
5834 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5837 /* Set up the various global variables to indicate that we're processing
5838 the input file named FILENAME. */
5841 set_input (const char *filename
)
5845 input_filename
= filename
;
5846 input_filename_length
= strlen (input_filename
);
5848 input_basename
= input_filename
;
5849 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5850 /* Skip drive name so 'x:foo' is handled properly. */
5851 if (input_basename
[1] == ':')
5852 input_basename
+= 2;
5854 for (p
= input_basename
; *p
; p
++)
5855 if (IS_DIR_SEPARATOR (*p
))
5856 input_basename
= p
+ 1;
5858 /* Find a suffix starting with the last period,
5859 and set basename_length to exclude that suffix. */
5860 basename_length
= strlen (input_basename
);
5861 suffixed_basename_length
= basename_length
;
5862 p
= input_basename
+ basename_length
;
5863 while (p
!= input_basename
&& *p
!= '.')
5865 if (*p
== '.' && p
!= input_basename
)
5867 basename_length
= p
- input_basename
;
5868 input_suffix
= p
+ 1;
5873 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5874 we will need to do a stat on the input_filename. The
5875 INPUT_STAT_SET signals that the stat is needed. */
5879 /* On fatal signals, delete all the temporary files. */
5882 fatal_error (int signum
)
5884 signal (signum
, SIG_DFL
);
5885 delete_failure_queue ();
5886 delete_temp_files ();
5887 /* Get the same signal again, this time not handled,
5888 so its normal effect occurs. */
5889 kill (getpid (), signum
);
5892 extern int main (int, const char *const *);
5895 main (int argc
, const char *const *argv
)
5899 int linker_was_run
= 0;
5900 int num_linker_inputs
= 0;
5901 char *explicit_link_files
;
5904 struct user_specs
*uptr
;
5906 p
= argv
[0] + strlen (argv
[0]);
5907 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5911 xmalloc_set_program_name (programname
);
5913 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5914 /* Perform host dependent initialization when needed. */
5915 GCC_DRIVER_HOST_INITIALIZATION
;
5918 gcc_init_libintl ();
5920 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5921 signal (SIGINT
, fatal_error
);
5923 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5924 signal (SIGHUP
, fatal_error
);
5926 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5927 signal (SIGTERM
, fatal_error
);
5929 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5930 signal (SIGPIPE
, fatal_error
);
5933 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5934 receive the signal. A different setting is inheritable */
5935 signal (SIGCHLD
, SIG_DFL
);
5938 /* Allocate the argument vector. */
5941 obstack_init (&obstack
);
5943 /* Build multilib_select, et. al from the separate lines that make up each
5944 multilib selection. */
5946 const char *const *q
= multilib_raw
;
5949 obstack_init (&multilib_obstack
);
5950 while ((p
= *q
++) != (char *) 0)
5951 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5953 obstack_1grow (&multilib_obstack
, 0);
5954 multilib_select
= obstack_finish (&multilib_obstack
);
5956 q
= multilib_matches_raw
;
5957 while ((p
= *q
++) != (char *) 0)
5958 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5960 obstack_1grow (&multilib_obstack
, 0);
5961 multilib_matches
= obstack_finish (&multilib_obstack
);
5963 q
= multilib_exclusions_raw
;
5964 while ((p
= *q
++) != (char *) 0)
5965 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5967 obstack_1grow (&multilib_obstack
, 0);
5968 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5971 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5974 obstack_1grow (&multilib_obstack
, ' ');
5975 obstack_grow (&multilib_obstack
,
5976 multilib_defaults_raw
[i
],
5977 strlen (multilib_defaults_raw
[i
]));
5981 obstack_1grow (&multilib_obstack
, 0);
5982 multilib_defaults
= obstack_finish (&multilib_obstack
);
5985 /* Set up to remember the pathname of gcc and any options
5986 needed for collect. We use argv[0] instead of programname because
5987 we need the complete pathname. */
5988 obstack_init (&collect_obstack
);
5989 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5990 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5991 putenv (obstack_finish (&collect_obstack
));
5993 #ifdef INIT_ENVIRONMENT
5994 /* Set up any other necessary machine specific environment variables. */
5995 putenv (INIT_ENVIRONMENT
);
5998 /* Make a table of what switches there are (switches, n_switches).
5999 Make a table of specified input files (infiles, n_infiles).
6000 Decode switches that are handled locally. */
6002 process_command (argc
, argv
);
6004 /* Initialize the vector of specs to just the default.
6005 This means one element containing 0s, as a terminator. */
6007 compilers
= xmalloc (sizeof default_compilers
);
6008 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6009 n_compilers
= n_default_compilers
;
6011 /* Read specs from a file if there is one. */
6013 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6014 spec_version
, dir_separator_str
, NULL
);
6015 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6017 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, 0);
6018 /* Read the specs file unless it is a default one. */
6019 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6020 read_specs (specs_file
, TRUE
);
6024 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6025 for any override of as, ld and libraries. */
6026 specs_file
= alloca (strlen (standard_exec_prefix
)
6027 + strlen (just_machine_suffix
) + sizeof ("specs"));
6029 strcpy (specs_file
, standard_exec_prefix
);
6030 strcat (specs_file
, just_machine_suffix
);
6031 strcat (specs_file
, "specs");
6032 if (access (specs_file
, R_OK
) == 0)
6033 read_specs (specs_file
, TRUE
);
6035 /* Process any configure-time defaults specified for the command line
6036 options, via OPTION_DEFAULT_SPECS. */
6037 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6038 do_option_spec (option_default_specs
[i
].name
,
6039 option_default_specs
[i
].spec
);
6041 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6042 of the command line. */
6044 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6045 do_self_spec (driver_self_specs
[i
]);
6047 /* If not cross-compiling, look for executables in the standard
6049 if (*cross_compile
== '0')
6051 if (*md_exec_prefix
)
6053 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6054 PREFIX_PRIORITY_LAST
, 0, NULL
, 0);
6058 /* Process sysroot_suffix_spec. */
6059 if (*sysroot_suffix_spec
!= 0
6060 && do_spec_2 (sysroot_suffix_spec
) == 0)
6062 if (argbuf_index
> 1)
6063 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC.");
6064 else if (argbuf_index
== 1)
6065 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6068 /* Process sysroot_hdrs_suffix_spec. */
6069 if (*sysroot_hdrs_suffix_spec
!= 0
6070 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6072 if (argbuf_index
> 1)
6073 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC.");
6074 else if (argbuf_index
== 1)
6075 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6078 /* Look for startfiles in the standard places. */
6079 if (*startfile_prefix_spec
!= 0
6080 && do_spec_2 (startfile_prefix_spec
) == 0
6081 && do_spec_1 (" ", 0, NULL
) == 0)
6084 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6085 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6086 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6088 /* We should eventually get rid of all these and stick to
6089 startfile_prefix_spec exclusively. */
6090 else if (*cross_compile
== '0' || target_system_root
)
6092 if (*md_exec_prefix
)
6093 add_sysrooted_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
6094 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6096 if (*md_startfile_prefix
)
6097 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6098 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6100 if (*md_startfile_prefix_1
)
6101 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6102 "GCC", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6104 /* If standard_startfile_prefix is relative, base it on
6105 standard_exec_prefix. This lets us move the installed tree
6106 as a unit. If GCC_EXEC_PREFIX is defined, base
6107 standard_startfile_prefix on that as well.
6109 If the prefix is relative, only search it for native compilers;
6110 otherwise we will search a directory containing host libraries. */
6111 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6112 add_sysrooted_prefix (&startfile_prefixes
,
6113 standard_startfile_prefix
, "BINUTILS",
6114 PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6115 else if (*cross_compile
== '0')
6117 if (gcc_exec_prefix
)
6118 add_prefix (&startfile_prefixes
,
6119 concat (gcc_exec_prefix
, machine_suffix
,
6120 standard_startfile_prefix
, NULL
),
6121 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6122 add_prefix (&startfile_prefixes
,
6123 concat (standard_exec_prefix
,
6125 standard_startfile_prefix
, NULL
),
6126 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6129 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
6130 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6131 add_sysrooted_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
6132 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
, 1);
6133 #if 0 /* Can cause surprises, and one can use -B./ instead. */
6134 add_prefix (&startfile_prefixes
, "./", NULL
,
6135 PREFIX_PRIORITY_LAST
, 1, NULL
, 0);
6139 /* Process any user specified specs in the order given on the command
6141 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6143 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6145 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6148 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6149 if (gcc_exec_prefix
)
6150 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6151 spec_version
, dir_separator_str
, NULL
);
6153 /* Now we have the specs.
6154 Set the `valid' bits for switches that match anything in any spec. */
6156 validate_all_switches ();
6158 /* Now that we have the switches and the specs, set
6159 the subdirectory based on the options. */
6160 set_multilib_dir ();
6162 /* Warn about any switches that no pass was interested in. */
6164 for (i
= 0; (int) i
< n_switches
; i
++)
6165 if (! switches
[i
].validated
)
6166 error ("unrecognized option `-%s'", switches
[i
].part1
);
6168 /* Obey some of the options. */
6170 if (print_search_dirs
)
6172 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6173 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6174 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6178 if (print_file_name
)
6180 printf ("%s\n", find_file (print_file_name
));
6184 if (print_prog_name
)
6186 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6187 printf ("%s\n", (newname
? newname
: print_prog_name
));
6191 if (print_multi_lib
)
6193 print_multilib_info ();
6197 if (print_multi_directory
)
6199 if (multilib_dir
== NULL
)
6202 printf ("%s\n", multilib_dir
);
6206 if (print_multi_os_directory
)
6208 if (multilib_os_dir
== NULL
)
6211 printf ("%s\n", multilib_os_dir
);
6215 if (target_help_flag
)
6217 /* Print if any target specific options. */
6219 /* We do not exit here. Instead we have created a fake input file
6220 called 'target-dummy' which needs to be compiled, and we pass this
6221 on to the various sub-processes, along with the --target-help
6225 if (print_help_list
)
6231 printf (_("\nFor bug reporting instructions, please see:\n"));
6232 printf ("%s.\n", bug_report_url
);
6237 /* We do not exit here. Instead we have created a fake input file
6238 called 'help-dummy' which needs to be compiled, and we pass this
6239 on the various sub-processes, along with the --help switch. */
6247 notice ("Configured with: %s\n", configuration_arguments
);
6249 #ifdef THREAD_MODEL_SPEC
6250 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6251 but there's no point in doing all this processing just to get
6252 thread_model back. */
6253 obstack_init (&obstack
);
6254 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6255 obstack_1grow (&obstack
, '\0');
6256 thrmod
= obstack_finish (&obstack
);
6258 thrmod
= thread_model
;
6261 notice ("Thread model: %s\n", thrmod
);
6263 /* compiler_version is truncated at the first space when initialized
6264 from version string, so truncate version_string at the first space
6265 before comparing. */
6266 for (n
= 0; version_string
[n
]; n
++)
6267 if (version_string
[n
] == ' ')
6270 if (! strncmp (version_string
, compiler_version
, n
)
6271 && compiler_version
[n
] == 0)
6272 notice ("gcc version %s\n", version_string
);
6274 notice ("gcc driver version %s executing gcc version %s\n",
6275 version_string
, compiler_version
);
6281 if (n_infiles
== added_libraries
)
6282 fatal ("no input files");
6284 /* Make a place to record the compiler output file names
6285 that correspond to the input files. */
6288 i
+= lang_specific_extra_outfiles
;
6289 outfiles
= xcalloc (i
, sizeof (char *));
6291 /* Record which files were specified explicitly as link input. */
6293 explicit_link_files
= xcalloc (1, n_infiles
);
6297 int lang_n_infiles
= 0;
6298 for (i
= 0; (int) i
< n_infiles
; i
++)
6300 const char *name
= infiles
[i
].name
;
6301 struct compiler
*compiler
6302 = lookup_compiler (name
, strlen (name
), infiles
[i
].language
);
6303 if (compiler
== NULL
)
6304 error ("%s: linker input file unused because linking not done",
6306 else if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
)
6307 fatal ("cannot specify -o with -c or -S and multiple languages");
6311 input_file_compiler
= compiler
;
6316 for (i
= 0; (int) i
< (combine_inputs
? 1 : n_infiles
); i
++)
6318 int this_file_error
= 0;
6320 /* Tell do_spec what to substitute for %i. */
6322 input_file_number
= i
;
6323 set_input (infiles
[i
].name
);
6325 /* Use the same thing in %o, unless cp->spec says otherwise. */
6327 outfiles
[i
] = input_filename
;
6329 /* Figure out which compiler from the file's suffix. */
6331 if (! combine_inputs
)
6333 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6334 infiles
[i
].language
);
6336 if (input_file_compiler
)
6338 /* Ok, we found an applicable compiler. Run its spec. */
6340 if (input_file_compiler
->spec
[0] == '#')
6342 error ("%s: %s compiler not installed on this system",
6343 input_filename
, &input_file_compiler
->spec
[1]);
6344 this_file_error
= 1;
6348 value
= do_spec (input_file_compiler
->spec
);
6350 this_file_error
= 1;
6354 /* If this file's name does not contain a recognized suffix,
6355 record it as explicit linker input. */
6358 explicit_link_files
[i
] = 1;
6360 /* Clear the delete-on-failure queue, deleting the files in it
6361 if this compilation failed. */
6363 if (this_file_error
)
6365 delete_failure_queue ();
6368 /* If this compilation succeeded, don't delete those files later. */
6369 clear_failure_queue ();
6372 /* Reset the output file name to the first input file name, for use
6373 with %b in LINK_SPEC on a target that prefers not to emit a.out
6376 set_input (infiles
[0].name
);
6378 if (error_count
== 0)
6380 /* Make sure INPUT_FILE_NUMBER points to first available open
6382 input_file_number
= n_infiles
;
6383 if (lang_specific_pre_link ())
6387 /* Determine if there are any linker input files. */
6388 num_linker_inputs
= 0;
6389 for (i
= 0; (int) i
< n_infiles
; i
++)
6390 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6391 num_linker_inputs
++;
6393 /* Run ld to link all the compiler output files. */
6395 if (num_linker_inputs
> 0 && error_count
== 0)
6397 int tmp
= execution_count
;
6399 /* We'll use ld if we can't find collect2. */
6400 if (! strcmp (linker_name_spec
, "collect2"))
6402 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, 0);
6404 linker_name_spec
= "ld";
6406 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6408 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6409 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6411 value
= do_spec (link_command_spec
);
6414 linker_was_run
= (tmp
!= execution_count
);
6417 /* If options said don't run linker,
6418 complain about input files to be given to the linker. */
6420 if (! linker_was_run
&& error_count
== 0)
6421 for (i
= 0; (int) i
< n_infiles
; i
++)
6422 if (explicit_link_files
[i
])
6423 error ("%s: linker input file unused because linking not done",
6426 /* Delete some or all of the temporary files we made. */
6429 delete_failure_queue ();
6430 delete_temp_files ();
6432 if (print_help_list
)
6434 printf (("\nFor bug reporting instructions, please see:\n"));
6435 printf ("%s\n", bug_report_url
);
6438 return (signal_count
!= 0 ? 2
6439 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6443 /* Find the proper compilation spec for the file name NAME,
6444 whose length is LENGTH. LANGUAGE is the specified language,
6445 or 0 if this file is to be passed to the linker. */
6447 static struct compiler
*
6448 lookup_compiler (const char *name
, size_t length
, const char *language
)
6450 struct compiler
*cp
;
6452 /* If this was specified by the user to be a linker input, indicate that. */
6453 if (language
!= 0 && language
[0] == '*')
6456 /* Otherwise, look for the language, if one is spec'd. */
6459 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6460 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6463 error ("language %s not recognized", language
);
6467 /* Look for a suffix. */
6468 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6470 if (/* The suffix `-' matches only the file name `-'. */
6471 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6472 || (strlen (cp
->suffix
) < length
6473 /* See if the suffix matches the end of NAME. */
6474 && !strcmp (cp
->suffix
,
6475 name
+ length
- strlen (cp
->suffix
))
6480 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6481 /* look again, but case-insensitively this time. */
6483 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6485 if (/* The suffix `-' matches only the file name `-'. */
6486 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6487 || (strlen (cp
->suffix
) < length
6488 /* See if the suffix matches the end of NAME. */
6489 && ((!strcmp (cp
->suffix
,
6490 name
+ length
- strlen (cp
->suffix
))
6491 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6492 && !strcasecmp (cp
->suffix
,
6493 name
+ length
- strlen (cp
->suffix
)))
6499 if (cp
>= compilers
)
6501 if (cp
->spec
[0] != '@')
6502 /* A non-alias entry: return it. */
6505 /* An alias entry maps a suffix to a language.
6506 Search for the language; pass 0 for NAME and LENGTH
6507 to avoid infinite recursion if language not found. */
6508 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6514 save_string (const char *s
, int len
)
6516 char *result
= xmalloc (len
+ 1);
6518 memcpy (result
, s
, len
);
6524 pfatal_with_name (const char *name
)
6526 perror_with_name (name
);
6527 delete_temp_files ();
6532 perror_with_name (const char *name
)
6534 error ("%s: %s", name
, xstrerror (errno
));
6538 pfatal_pexecute (const char *errmsg_fmt
, const char *errmsg_arg
)
6542 int save_errno
= errno
;
6544 /* Space for trailing '\0' is in %s. */
6545 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6546 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6552 pfatal_with_name (errmsg_fmt
);
6555 /* Output an error message and exit. */
6560 fatal ("internal gcc abort");
6563 /* Output an error message and exit. */
6566 fatal (const char *msgid
, ...)
6570 va_start (ap
, msgid
);
6572 fprintf (stderr
, "%s: ", programname
);
6573 vfprintf (stderr
, _(msgid
), ap
);
6575 fprintf (stderr
, "\n");
6576 delete_temp_files ();
6581 error (const char *msgid
, ...)
6585 va_start (ap
, msgid
);
6586 fprintf (stderr
, "%s: ", programname
);
6587 vfprintf (stderr
, _(msgid
), ap
);
6590 fprintf (stderr
, "\n");
6594 notice (const char *msgid
, ...)
6598 va_start (ap
, msgid
);
6599 vfprintf (stderr
, _(msgid
), ap
);
6604 validate_switches_from_spec (const char *spec
)
6606 const char *p
= spec
;
6609 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6610 /* We have a switch spec. */
6611 p
= validate_switches (p
+ 1);
6615 validate_all_switches (void)
6617 struct compiler
*comp
;
6618 struct spec_list
*spec
;
6620 for (comp
= compilers
; comp
->spec
; comp
++)
6621 validate_switches_from_spec (comp
->spec
);
6623 /* Look through the linked list of specs read from the specs file. */
6624 for (spec
= specs
; spec
; spec
= spec
->next
)
6625 validate_switches_from_spec (*spec
->ptr_spec
);
6627 validate_switches_from_spec (link_command_spec
);
6630 /* Look at the switch-name that comes after START
6631 and mark as valid all supplied switches that match it. */
6634 validate_switches (const char *start
)
6636 const char *p
= start
;
6640 bool suffix
= false;
6641 bool starred
= false;
6643 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6656 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6657 || *p
== ',' || *p
== '.' || *p
== '@')
6662 starred
= true, p
++;
6668 /* Mark all matching switches as valid. */
6669 for (i
= 0; i
< n_switches
; i
++)
6670 if (!strncmp (switches
[i
].part1
, atom
, len
)
6671 && (starred
|| switches
[i
].part1
[len
] == 0))
6672 switches
[i
].validated
= 1;
6676 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6679 if (*p
&& p
[-1] == ':')
6681 while (*p
&& *p
!= ';' && *p
!= '}')
6686 if (*p
== '{' || *p
== '<')
6687 p
= validate_switches (p
+1);
6688 else if (p
[0] == 'W' && p
[1] == '{')
6689 p
= validate_switches (p
+2);
6696 if (*p
&& p
[-1] == ';')
6710 static struct mdswitchstr
*mdswitches
;
6711 static int n_mdswitches
;
6713 /* Check whether a particular argument was used. The first time we
6714 canonicalize the switches to keep only the ones we care about. */
6717 used_arg (const char *p
, int len
)
6722 const char *replace
;
6727 static struct mswitchstr
*mswitches
;
6728 static int n_mswitches
;
6733 struct mswitchstr
*matches
;
6737 /* Break multilib_matches into the component strings of string
6738 and replacement string. */
6739 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6743 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
6745 q
= multilib_matches
;
6755 matches
[i
].len
= q
- matches
[i
].str
;
6757 matches
[i
].replace
= ++q
;
6758 while (*q
!= ';' && *q
!= '\0')
6764 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6770 /* Now build a list of the replacement string for switches that we care
6771 about. Make sure we allocate at least one entry. This prevents
6772 xmalloc from calling fatal, and prevents us from re-executing this
6775 = xmalloc (sizeof (struct mswitchstr
)
6776 * (n_mdswitches
+ (n_switches
? n_switches
: 1)));
6777 for (i
= 0; i
< n_switches
; i
++)
6779 int xlen
= strlen (switches
[i
].part1
);
6780 for (j
= 0; j
< cnt
; j
++)
6781 if (xlen
== matches
[j
].len
6782 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6784 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6785 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6786 mswitches
[n_mswitches
].replace
= (char *) 0;
6787 mswitches
[n_mswitches
].rep_len
= 0;
6793 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
6794 on the command line nor any options mutually incompatible with
6796 for (i
= 0; i
< n_mdswitches
; i
++)
6800 for (q
= multilib_options
; *q
!= '\0'; q
++)
6806 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
6807 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
6809 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6816 if (*q
!= ' ' && *q
!= '\0')
6818 while (*r
!= ' ' && *r
!= '\0')
6821 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
6824 if (used_arg (r
, q
- r
))
6829 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
6830 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
6831 mswitches
[n_mswitches
].replace
= (char *) 0;
6832 mswitches
[n_mswitches
].rep_len
= 0;
6845 for (i
= 0; i
< n_mswitches
; i
++)
6846 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6853 default_arg (const char *p
, int len
)
6857 for (i
= 0; i
< n_mdswitches
; i
++)
6858 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
6864 /* Work out the subdirectory to use based on the options. The format of
6865 multilib_select is a list of elements. Each element is a subdirectory
6866 name followed by a list of options followed by a semicolon. The format
6867 of multilib_exclusions is the same, but without the preceding
6868 directory. First gcc will check the exclusions, if none of the options
6869 beginning with an exclamation point are present, and all of the other
6870 options are present, then we will ignore this completely. Passing
6871 that, gcc will consider each multilib_select in turn using the same
6872 rules for matching the options. If a match is found, that subdirectory
6876 set_multilib_dir (void)
6879 unsigned int this_path_len
;
6880 const char *this_path
, *this_arg
;
6881 const char *start
, *end
;
6883 int ok
, ndfltok
, first
;
6886 start
= multilib_defaults
;
6887 while (*start
== ' ' || *start
== '\t')
6889 while (*start
!= '\0')
6892 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
6894 while (*start
== ' ' || *start
== '\t')
6902 mdswitches
= xmalloc (sizeof (struct mdswitchstr
) * n_mdswitches
);
6903 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6905 while (*start
== ' ' || *start
== '\t')
6911 for (end
= start
+ 1;
6912 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6915 obstack_grow (&multilib_obstack
, start
, end
- start
);
6916 obstack_1grow (&multilib_obstack
, 0);
6917 mdswitches
[i
].str
= obstack_finish (&multilib_obstack
);
6918 mdswitches
[i
++].len
= end
- start
;
6925 p
= multilib_exclusions
;
6928 /* Ignore newlines. */
6935 /* Check the arguments. */
6949 while (*p
!= ' ' && *p
!= ';')
6956 if (*this_arg
!= '!')
6964 ok
= used_arg (this_arg
, p
- this_arg
);
6979 p
= multilib_select
;
6982 /* Ignore newlines. */
6989 /* Get the initial path. */
6997 this_path_len
= p
- this_path
;
6999 /* Check the arguments. */
7015 while (*p
!= ' ' && *p
!= ';')
7022 if (*this_arg
!= '!')
7030 /* If this is a default argument, we can just ignore it.
7031 This is true even if this_arg begins with '!'. Beginning
7032 with '!' does not mean that this argument is necessarily
7033 inappropriate for this library: it merely means that
7034 there is a more specific library which uses this
7035 argument. If this argument is a default, we need not
7036 consider that more specific library. */
7037 ok
= used_arg (this_arg
, p
- this_arg
);
7044 if (default_arg (this_arg
, p
- this_arg
))
7053 if (this_path_len
!= 1
7054 || this_path
[0] != '.')
7056 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
7059 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7060 new_multilib_dir
[this_path_len
] = '\0';
7061 q
= strchr (new_multilib_dir
, ':');
7064 multilib_dir
= new_multilib_dir
;
7071 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7073 while (q
< end
&& *q
!= ':')
7077 char *new_multilib_os_dir
= xmalloc (end
- q
);
7078 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7079 new_multilib_os_dir
[end
- q
- 1] = '\0';
7080 multilib_os_dir
= new_multilib_os_dir
;
7088 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7089 && strcmp (multilib_os_dir
, ".") == 0)
7091 free ((char *) multilib_os_dir
);
7092 multilib_os_dir
= NULL
;
7094 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7095 multilib_os_dir
= multilib_dir
;
7098 /* Print out the multiple library subdirectory selection
7099 information. This prints out a series of lines. Each line looks
7100 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7101 required. Only the desired options are printed out, the negative
7102 matches. The options are print without a leading dash. There are
7103 no spaces to make it easy to use the information in the shell.
7104 Each subdirectory is printed only once. This assumes the ordering
7105 generated by the genmultilib script. Also, we leave out ones that match
7109 print_multilib_info (void)
7111 const char *p
= multilib_select
;
7112 const char *last_path
= 0, *this_path
;
7114 unsigned int last_path_len
= 0;
7119 /* Ignore newlines. */
7126 /* Get the initial path. */
7135 /* When --disable-multilib was used but target defines
7136 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7137 to find multilib_os_dir, so skip them from output. */
7138 if (this_path
[0] == '.' && this_path
[1] == ':')
7141 /* Check for matches with the multilib_exclusions. We don't bother
7142 with the '!' in either list. If any of the exclusion rules match
7143 all of its options with the select rule, we skip it. */
7145 const char *e
= multilib_exclusions
;
7146 const char *this_arg
;
7151 /* Ignore newlines. */
7158 /* Check the arguments. */
7175 while (*e
!= ' ' && *e
!= ';')
7186 int len
= e
- this_arg
;
7193 while (*q
!= ' ' && *q
!= ';')
7200 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
7201 default_arg (this_arg
, e
- this_arg
))
7231 /* If this is a duplicate, skip it. */
7232 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
7233 && ! strncmp (last_path
, this_path
, last_path_len
));
7235 last_path
= this_path
;
7236 last_path_len
= p
- this_path
;
7239 /* If this directory requires any default arguments, we can skip
7240 it. We will already have printed a directory identical to
7241 this one which does not require that default argument. */
7259 while (*q
!= ' ' && *q
!= ';')
7267 && default_arg (arg
, q
- arg
))
7282 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7301 use_arg
= *p
!= '!';
7306 while (*p
!= ' ' && *p
!= ';')
7321 /* If there are extra options, print them now. */
7322 if (multilib_extra
&& *multilib_extra
)
7324 int print_at
= TRUE
;
7327 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7348 /* if-exists built-in spec function.
7350 Checks to see if the file specified by the absolute pathname in
7351 ARGS exists. Returns that pathname if found.
7353 The usual use for this function is to check for a library file
7354 (whose name has been expanded with %s). */
7357 if_exists_spec_function (int argc
, const char **argv
)
7359 /* Must have only one argument. */
7360 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7366 /* if-exists-else built-in spec function.
7368 This is like if-exists, but takes an additional argument which
7369 is returned if the first argument does not exist. */
7372 if_exists_else_spec_function (int argc
, const char **argv
)
7374 /* Must have exactly two arguments. */
7378 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))