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, 2004 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"
76 #include "multilib.h" /* before tm.h */
79 #if ! defined( SIGCHLD ) && defined( SIGCLD )
80 # define SIGCHLD SIGCLD
88 #ifdef HAVE_SYS_RESOURCE_H
89 #include <sys/resource.h>
91 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
92 extern int getrusage (int, struct rusage *);
95 /* By default there is no special suffix for target executables. */
96 /* FIXME: when autoconf is fixed, remove the host check - dj */
97 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
98 #define HAVE_TARGET_EXECUTABLE_SUFFIX
101 /* By default there is no special suffix for host executables. */
102 #ifdef HOST_EXECUTABLE_SUFFIX
103 #define HAVE_HOST_EXECUTABLE_SUFFIX
105 #define HOST_EXECUTABLE_SUFFIX ""
108 /* By default, the suffix for target object files is ".o". */
109 #ifdef TARGET_OBJECT_SUFFIX
110 #define HAVE_TARGET_OBJECT_SUFFIX
112 #define TARGET_OBJECT_SUFFIX ".o"
115 static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
117 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
118 #ifndef LIBRARY_PATH_ENV
119 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
123 #define kill(p,s) raise(s)
126 /* If a stage of compilation returns an exit status >= 1,
127 compilation of that file ceases. */
129 #define MIN_FATAL_STATUS 1
131 /* Flag set by cppspec.c to 1. */
134 /* Flag saying to pass the greatest exit code returned by a sub-process
135 to the calling program. */
136 static int pass_exit_codes;
138 /* Definition of string containing the arguments given to configure. */
139 #include "configargs.h"
141 /* Flag saying to print the directories gcc will search through looking for
142 programs, libraries, etc. */
144 static int print_search_dirs;
146 /* Flag saying to print the full filename of this file
147 as found through our usual search mechanism. */
149 static const char *print_file_name = NULL;
151 /* As print_file_name, but search for executable file. */
153 static const char *print_prog_name = NULL;
155 /* Flag saying to print the relative path we'd use to
156 find libgcc.a given the current compiler flags. */
158 static int print_multi_directory;
160 /* Flag saying to print the relative path we'd use to
161 find OS libraries given the current compiler flags. */
163 static int print_multi_os_directory;
165 /* Flag saying to print the list of subdirectories and
166 compiler flags used to select them in a standard form. */
168 static int print_multi_lib;
170 /* Flag saying to print the command line options understood by gcc and its
173 static int print_help_list;
175 /* Flag indicating whether we should print the command and arguments */
177 static int verbose_flag;
179 /* Flag indicating whether we should ONLY print the command and
180 arguments (like verbose_flag) without executing the command.
181 Displayed arguments are quoted so that the generated command
182 line is suitable for execution. This is intended for use in
183 shell scripts to capture the driver-generated command line. */
184 static int verbose_only_flag;
186 /* Flag indicating to print target specific command line options. */
188 static int target_help_flag;
190 /* Flag indicating whether we should report subprocess execution times
191 (if this is supported by the system - see pexecute.c). */
193 static int report_times;
195 /* Nonzero means place this string before uses of /, so that include
196 and library files can be found in an alternate location. */
198 #ifdef TARGET_SYSTEM_ROOT
199 static const char *target_system_root = TARGET_SYSTEM_ROOT;
201 static const char *target_system_root = 0;
204 /* Nonzero means pass the updated target_system_root to the compiler. */
206 static int target_system_root_changed;
208 /* Nonzero means append this string to target_system_root. */
210 static const char *target_sysroot_suffix = 0;
212 /* Nonzero means append this string to target_system_root for headers. */
214 static const char *target_sysroot_hdrs_suffix = 0;
216 /* Nonzero means write "temp" files in source directory
217 and use the source file's name in them, and don't delete them. */
219 static int save_temps_flag;
221 /* Nonzero means pass multiple source files to the compiler at one time. */
223 static int combine_flag = 0;
225 /* Nonzero means use pipes to communicate between subprocesses.
226 Overridden by either of the above two flags. */
228 static int use_pipes;
230 /* The compiler version. */
232 static const char *compiler_version;
234 /* The target version specified with -V */
236 static const char *const spec_version = DEFAULT_TARGET_VERSION;
238 /* The target machine specified with -b. */
240 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
242 /* Nonzero if cross-compiling.
243 When -b is used, the value comes from the `specs' file. */
246 static const char *cross_compile = "1";
248 static const char *cross_compile = "0";
251 #ifdef MODIFY_TARGET_NAME
253 /* Information on how to alter the target name based on a command-line
254 switch. The only case we support now is simply appending or deleting a
255 string to or from the end of the first part of the configuration name. */
257 static const struct modify_target
259 const char *const sw;
260 const enum add_del {ADD, DELETE} add_del;
261 const char *const str;
263 modify_target[] = MODIFY_TARGET_NAME;
266 /* The number of errors that have occurred; the link phase will not be
267 run if this is nonzero. */
268 static int error_count = 0;
270 /* Greatest exit code of sub-processes that has been encountered up to
272 static int greatest_status = 1;
274 /* This is the obstack which we use to allocate many strings. */
276 static struct obstack obstack;
278 /* This is the obstack to build an environment variable to pass to
279 collect2 that describes all of the relevant switches of what to
280 pass the compiler in building the list of pointers to constructors
283 static struct obstack collect_obstack;
285 /* These structs are used to collect resource usage information for
287 #ifdef HAVE_GETRUSAGE
288 static struct rusage rus, prus;
291 /* Forward declaration for prototypes. */
295 static void init_spec (void);
296 static void store_arg (const char *, int, int);
297 static char *load_specs (const char *);
298 static void read_specs (const char *, int);
299 static void set_spec (const char *, const char *);
300 static struct compiler *lookup_compiler (const char *, size_t, const char *);
301 static char *build_search_list (struct path_prefix *, const char *, int);
302 static void putenv_from_prefixes (struct path_prefix *, const char *);
303 static int access_check (const char *, int);
304 static char *find_a_file (struct path_prefix *, const char *, int, int);
305 static void add_prefix (struct path_prefix *, const char *, const char *,
306 int, int, int *, int);
307 static void add_sysrooted_prefix (struct path_prefix *, const char *,
308 const char *, int, int, int *, int);
309 static void translate_options (int *, const char *const **);
310 static char *skip_whitespace (char *);
311 static void delete_if_ordinary (const char *);
312 static void delete_temp_files (void);
313 static void delete_failure_queue (void);
314 static void clear_failure_queue (void);
315 static int check_live_switch (int, int);
316 static const char *handle_braces (const char *);
317 static inline bool input_suffix_matches (const char *, const char *);
318 static inline bool switch_matches (const char *, const char *, int);
319 static inline void mark_matching_switches (const char *, const char *, int);
320 static inline void process_marked_switches (void);
321 static const char *process_brace_body (const char *, const char *, const char *, int, int);
322 static const struct spec_function *lookup_spec_function (const char *);
323 static const char *eval_spec_function (const char *, const char *);
324 static const char *handle_spec_function (const char *);
325 static char *save_string (const char *, int);
326 static void set_collect_gcc_options (void);
327 static void do_spec_path (struct prefix_list *, const char *, int, int, int, const char *, const char *);
328 static int do_spec_1 (const char *, int, const char *);
329 static int do_spec_2 (const char *);
330 static void do_option_spec (const char *, const char *);
331 static void do_self_spec (const char *);
332 static const char *find_file (const char *);
333 static int is_directory (const char *, const char *, int);
334 static const char *validate_switches (const char *);
335 static void validate_all_switches (void);
336 static inline void validate_switches_from_spec (const char *);
337 static void give_switch (int, int);
338 static int used_arg (const char *, int);
339 static int default_arg (const char *, int);
340 static void set_multilib_dir (void);
341 static void print_multilib_info (void);
342 static void perror_with_name (const char *);
343 static void pfatal_pexecute (const char *, const char *) ATTRIBUTE_NORETURN;
344 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
345 static void display_help (void);
346 static void add_preprocessor_option (const char *, int);
347 static void add_assembler_option (const char *, int);
348 static void add_linker_option (const char *, int);
349 static void process_command (int, const char **);
350 static int execute (void);
351 static void alloc_args (void);
352 static void clear_args (void);
353 static void fatal_error (int);
354 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
355 static void init_gcc_specs (struct obstack *, const char *, const char *,
358 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
359 static const char *convert_filename (const char *, int, int);
362 static const char *if_exists_spec_function (int, const char **);
363 static const char *if_exists_else_spec_function (int, const char **);
365 /* The Specs Language
367 Specs are strings containing lines, each of which (if not blank)
368 is made up of a program name, and arguments separated by spaces.
369 The program name must be exact and start from root, since no path
370 is searched and it is unreliable to depend on the current working directory.
371 Redirection of input or output is not supported; the subprograms must
372 accept filenames saying what files to read and write.
374 In addition, the specs can contain %-sequences to substitute variable text
375 or for conditional text. Here is a table of all defined %-sequences.
376 Note that spaces are not generated automatically around the results of
377 expanding these sequences; therefore, you can concatenate them together
378 or with constant text in a single argument.
380 %% substitute one % into the program name or argument.
381 %i substitute the name of the input file being processed.
382 %b substitute the basename of the input file being processed.
383 This is the substring up to (and not including) the last period
384 and not including the directory.
385 %B same as %b, but include the file suffix (text after the last period).
387 substitute a file name that has suffix SUFFIX and is chosen
388 once per compilation, and mark the argument a la %d. To reduce
389 exposure to denial-of-service attacks, the file name is now
390 chosen in a way that is hard to predict even when previously
391 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
392 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
393 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
394 had been pre-processed. Previously, %g was simply substituted
395 with a file name chosen once per compilation, without regard
396 to any appended suffix (which was therefore treated just like
397 ordinary text), making such attacks more likely to succeed.
399 like %g, but if -pipe is in effect, expands simply to "-".
401 like %g, but if -pipe is in effect, expands to nothing. (We have both
402 %| and %m to accommodate differences between system assemblers; see
403 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
405 like %g, but generates a new temporary file name even if %uSUFFIX
408 substitutes the last file name generated with %uSUFFIX, generating a
409 new one if there is no such last file name. In the absence of any
410 %uSUFFIX, this is just like %gSUFFIX, except they don't share
411 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
412 would involve the generation of two distinct file names, one
413 for each `%g.s' and another for each `%U.s'. Previously, %U was
414 simply substituted with a file name chosen for the previous %u,
415 without regard to any appended suffix.
417 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
418 writable, and if save-temps is off; otherwise, substitute the name
419 of a temporary file, just like %u. This temporary file is not
420 meant for communication between processes, but rather as a junk
423 substitutes .SUFFIX for the suffixes of a matched switch's args when
424 it is subsequently output with %*. SUFFIX is terminated by the next
426 %d marks the argument containing or following the %d as a
427 temporary file name, so that that file will be deleted if CC exits
428 successfully. Unlike %g, this contributes no text to the argument.
429 %w marks the argument containing or following the %w as the
430 "output file" of this compilation. This puts the argument
431 into the sequence of arguments that %o will substitute later.
432 %V indicates that this compilation produces no "output file".
434 like %{...} but mark last argument supplied within
435 as a file to be deleted on failure.
436 %o substitutes the names of all the output files, with spaces
437 automatically placed around them. You should write spaces
438 around the %o as well or the results are undefined.
439 %o is for use in the specs for running the linker.
440 Input files whose names have no recognized suffix are not compiled
441 at all, but they are included among the output files, so they will
443 %O substitutes the suffix for object files. Note that this is
444 handled specially when it immediately follows %g, %u, or %U
445 (with or without a suffix argument) because of the need for
446 those to form complete file names. The handling is such that
447 %O is treated exactly as if it had already been substituted,
448 except that %g, %u, and %U do not currently support additional
449 SUFFIX characters following %O as they would following, for
451 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
452 (made from TARGET_SYSTEM_ROOT), and -isystem (made from COMPILER_PATH
453 and -B options) as necessary.
454 %s current argument is the name of a library or startup file of some sort.
455 Search for that file in a standard list of directories
456 and substitute the full name found.
457 %eSTR Print STR as an error message. STR is terminated by a newline.
458 Use this when inconsistent options are detected.
459 %nSTR Print STR as a notice. STR is terminated by a newline.
460 %x{OPTION} Accumulate an option for %X.
461 %X Output the accumulated linker options specified by compilations.
462 %Y Output the accumulated assembler options specified by compilations.
463 %Z Output the accumulated preprocessor options specified by compilations.
464 %a process ASM_SPEC as a spec.
465 This allows config.h to specify part of the spec for running as.
466 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
467 used here. This can be used to run a post-processor after the
468 assembler has done its job.
469 %D Dump out a -L option for each directory in startfile_prefixes.
470 If multilib_dir is set, extra entries are generated with it affixed.
471 %l process LINK_SPEC as a spec.
472 %L process LIB_SPEC as a spec.
473 %G process LIBGCC_SPEC as a spec.
474 %M output multilib_dir with directory separators replaced with "_";
475 if multilib_dir is not set or is ".", output "".
476 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
477 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
478 %C process CPP_SPEC as a spec.
479 %1 process CC1_SPEC as a spec.
480 %2 process CC1PLUS_SPEC as a spec.
481 %* substitute the variable part of a matched option. (See below.)
482 Note that each comma in the substituted string is replaced by
484 %<S remove all occurrences of -S from the command line.
485 Note - this command is position dependent. % commands in the
486 spec string before this one will see -S, % commands in the
487 spec string after this one will not.
488 %<S* remove all occurrences of all switches beginning with -S from the
491 Call the named function FUNCTION, passing it ARGS. ARGS is
492 first processed as a nested spec string, then split into an
493 argument vector in the usual fashion. The function returns
494 a string which is processed as if it had appeared literally
495 as part of the current spec.
496 %{S} substitutes the -S switch, if that switch was given to CC.
497 If that switch was not specified, this substitutes nothing.
498 Here S is a metasyntactic variable.
499 %{S*} substitutes all the switches specified to CC whose names start
500 with -S. This is used for -o, -I, etc; switches that take
501 arguments. CC considers `-o foo' as being one switch whose
502 name starts with `o'. %{o*} would substitute this text,
503 including the space; thus, two arguments would be generated.
504 %{S*&T*} likewise, but preserve order of S and T options (the order
505 of S and T in the spec is not significant). Can be any number
506 of ampersand-separated variables; for each the wild card is
507 optional. Useful for CPP as %{D*&U*&A*}.
509 %{S:X} substitutes X, if the -S switch was given to CC.
510 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
511 %{S*:X} substitutes X if one or more switches whose names start
512 with -S was given to CC. Normally X is substituted only
513 once, no matter how many such switches appeared. However,
514 if %* appears somewhere in X, then X will be substituted
515 once for each matching switch, with the %* replaced by the
516 part of that switch that matched the '*'.
517 %{.S:X} substitutes X, if processing a file with suffix S.
518 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
520 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
521 combined with !, ., and * as above binding stronger than the OR.
522 If %* appears in X, all of the alternatives must be starred, and
523 only the first matching alternative is substituted.
524 %{S:X; if S was given to CC, substitutes X;
525 T:Y; else if T was given to CC, substitutes Y;
526 :D} else substitutes D. There can be as many clauses as you need.
527 This may be combined with ., !, |, and * as above.
529 %(Spec) processes a specification defined in a specs file as *Spec:
530 %[Spec] as above, but put __ around -D arguments
532 The conditional text X in a %{S:X} or similar construct may contain
533 other nested % constructs or spaces, or even newlines. They are
534 processed as usual, as described above. Trailing white space in X is
535 ignored. White space may also appear anywhere on the left side of the
536 colon in these constructs, except between . or * and the corresponding
539 The -O, -f, -m, and -W switches are handled specifically in these
540 constructs. If another value of -O or the negated form of a -f, -m, or
541 -W switch is found later in the command line, the earlier switch
542 value is ignored, except with {S*} where S is just one letter; this
543 passes all matching options.
545 The character | at the beginning of the predicate text is used to indicate
546 that a command should be piped to the following command, but only if -pipe
549 Note that it is built into CC which switches take arguments and which
550 do not. You might think it would be useful to generalize this to
551 allow each compiler's spec to say which switches take arguments. But
552 this cannot be done in a consistent fashion. CC cannot even decide
553 which input files have been specified without knowing which switches
554 take arguments, and it must know which input files to compile in order
555 to tell which compilers to run.
557 CC also knows implicitly that arguments starting in `-l' are to be
558 treated as compiler output files, and passed to the linker in their
559 proper position among the other output files. */
561 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
563 /* config.h can define ASM_SPEC to provide extra args to the assembler
564 or extra switch-translations. */
569 /* config.h can define ASM_FINAL_SPEC to run a post processor after
570 the assembler has run. */
571 #ifndef ASM_FINAL_SPEC
572 #define ASM_FINAL_SPEC ""
575 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
576 or extra switch-translations. */
581 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
582 or extra switch-translations. */
587 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
588 or extra switch-translations. */
590 #define CC1PLUS_SPEC ""
593 /* config.h can define LINK_SPEC to provide extra args to the linker
594 or extra switch-translations. */
599 /* config.h can define LIB_SPEC to override the default libraries. */
601 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
606 /* XXX: valid only for GNU ld */
607 /* XXX: should exactly match hooks provided by libmudflap.a */
608 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
609 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
610 --wrap=mmap --wrap=munmap --wrap=alloca\
611 } %{fmudflapth: --wrap=pthread_create --wrap=pthread_join --wrap=pthread_exit\
612 }} %{fmudflap|fmudflapth: --wrap=main}"
615 #define MFLIB_SPEC " %{fmudflap: -export-dynamic -lmudflap %{static:%(link_gcc_c_sequence) -lmudflap}} %{fmudflapth: -export-dynamic -lmudflapth -lpthread %{static:%(link_gcc_c_sequence) -lmudflapth}} "
618 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
621 #if defined(REAL_LIBGCC_SPEC)
622 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
623 #elif defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
624 /* Have gcc do the search for libgcc.a. */
625 #define LIBGCC_SPEC "libgcc.a%s"
627 #define LIBGCC_SPEC "-lgcc"
631 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
632 #ifndef STARTFILE_SPEC
633 #define STARTFILE_SPEC \
634 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
637 /* config.h can define SWITCHES_NEED_SPACES to control which options
638 require spaces between the option and the argument. */
639 #ifndef SWITCHES_NEED_SPACES
640 #define SWITCHES_NEED_SPACES ""
643 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
645 #define ENDFILE_SPEC ""
649 #define LINKER_NAME "collect2"
652 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
654 #ifndef ASM_DEBUG_SPEC
655 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
656 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
657 # define ASM_DEBUG_SPEC \
658 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
659 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
660 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
662 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
663 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
665 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
666 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
670 #ifndef ASM_DEBUG_SPEC
671 # define ASM_DEBUG_SPEC ""
674 /* Here is the spec for running the linker, after compiling all files. */
676 /* This is overridable by the target in case they need to specify the
677 -lgcc and -lc order specially, yet not require them to override all
678 of LINK_COMMAND_SPEC. */
679 #ifndef LINK_GCC_C_SEQUENCE_SPEC
680 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
683 #ifndef LINK_PIE_SPEC
685 #define LINK_PIE_SPEC "%{pie:-pie} "
687 #define LINK_PIE_SPEC "%{pie:} "
691 /* -u* was put back because both BSD and SysV seem to support it. */
692 /* %{static:} simply prevents an error message if the target machine
693 doesn't handle -static. */
694 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
695 scripts which exist in user specified directories, or in standard
697 #ifndef LINK_COMMAND_SPEC
698 #define LINK_COMMAND_SPEC "\
699 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
700 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
701 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
702 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o %(mflib)\
703 %{fprofile-arcs|fprofile-generate:-lgcov}\
704 %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
705 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
708 #ifndef LINK_LIBGCC_SPEC
709 # ifdef LINK_LIBGCC_SPECIAL
710 /* Don't generate -L options for startfile prefix list. */
711 # define LINK_LIBGCC_SPEC ""
713 /* Do generate them. */
714 # define LINK_LIBGCC_SPEC "%D"
718 #ifndef STARTFILE_PREFIX_SPEC
719 # define STARTFILE_PREFIX_SPEC ""
722 #ifndef SYSROOT_SUFFIX_SPEC
723 # define SYSROOT_SUFFIX_SPEC ""
726 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
727 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
730 static const char *asm_debug;
731 static const char *cpp_spec = CPP_SPEC;
732 static const char *cc1_spec = CC1_SPEC;
733 static const char *cc1plus_spec = CC1PLUS_SPEC;
734 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
735 static const char *asm_spec = ASM_SPEC;
736 static const char *asm_final_spec = ASM_FINAL_SPEC;
737 static const char *link_spec = LINK_SPEC;
738 static const char *lib_spec = LIB_SPEC;
739 static const char *mfwrap_spec = MFWRAP_SPEC;
740 static const char *mflib_spec = MFLIB_SPEC;
741 static const char *libgcc_spec = LIBGCC_SPEC;
742 static const char *endfile_spec = ENDFILE_SPEC;
743 static const char *startfile_spec = STARTFILE_SPEC;
744 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
745 static const char *linker_name_spec = LINKER_NAME;
746 static const char *link_command_spec = LINK_COMMAND_SPEC;
747 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
748 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
749 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
750 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
752 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
753 There should be no need to override these in target dependent files,
754 but we need to copy them to the specs file so that newer versions
755 of the GCC driver can correctly drive older tool chains with the
756 appropriate -B options. */
758 /* When cpplib handles traditional preprocessing, get rid of this, and
759 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
760 that we default the front end language better. */
761 static const char *trad_capable_cpp =
762 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
764 /* We don't wrap .d files in %W{} since a missing .d file, and
765 therefore no dependency entry, confuses make into thinking a .o
766 file that happens to exist is up-to-date. */
767 static const char *cpp_unique_options =
768 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
769 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
770 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
771 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
772 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
773 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
774 %{trigraphs} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
775 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
776 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
779 /* This contains cpp options which are common with cc1_options and are passed
780 only when preprocessing only to avoid duplication. We pass the cc1 spec
781 options to the preprocessor so that it the cc1 spec may manipulate
782 options used to set target flags. Those special target flags settings may
783 in turn cause preprocessor symbols to be defined specially. */
784 static const char *cpp_options =
785 "%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*}\
786 %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*} %{undef}";
788 /* This contains cpp options which are not passed when the preprocessor
789 output will be used by another program. */
790 static const char *cpp_debug_options = "%{d*}";
792 /* NB: This is shared amongst all front-ends. */
793 static const char *cc1_options =
794 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
795 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
796 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
797 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
798 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
799 %{Qn:-fno-ident} %{--help:--help}\
800 %{--target-help:--target-help}\
801 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
802 %{fsyntax-only:-o %j} %{-param*}\
803 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}";
805 static const char *asm_options =
806 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
808 static const char *invoke_as =
809 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
810 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
812 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
815 /* Some compilers have limits on line lengths, and the multilib_select
816 and/or multilib_matches strings can be very long, so we build them at
818 static struct obstack multilib_obstack;
819 static const char *multilib_select;
820 static const char *multilib_matches;
821 static const char *multilib_defaults;
822 static const char *multilib_exclusions;
824 /* Check whether a particular argument is a default argument. */
826 #ifndef MULTILIB_DEFAULTS
827 #define MULTILIB_DEFAULTS { "" }
830 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
832 #ifndef DRIVER_SELF_SPECS
833 #define DRIVER_SELF_SPECS ""
836 static const char *const driver_self_specs[] = { DRIVER_SELF_SPECS };
838 #ifndef OPTION_DEFAULT_SPECS
839 #define OPTION_DEFAULT_SPECS { "", "" }
848 static const struct default_spec
849 option_default_specs[] = { OPTION_DEFAULT_SPECS };
853 struct user_specs *next;
854 const char *filename;
857 static struct user_specs *user_specs_head, *user_specs_tail;
859 #ifndef SWITCH_TAKES_ARG
860 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
863 #ifndef WORD_SWITCH_TAKES_ARG
864 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
867 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
868 /* This defines which switches stop a full compilation. */
869 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
870 ((CHAR) == 'c' || (CHAR) == 'S')
872 #ifndef SWITCH_CURTAILS_COMPILATION
873 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
874 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
878 /* Record the mapping from file suffixes for compilation specs. */
882 const char *suffix; /* Use this compiler for input files
883 whose names end in this suffix. */
885 const char *spec; /* To use this compiler, run this spec. */
887 const char *cpp_spec; /* If non-NULL, substitute this spec
888 for `%C', rather than the usual
890 const int combinable; /* If nonzero, compiler can deal with
891 multiple source files at once (IMA). */
892 const int needs_preprocessing; /* If nonzero, source files need to
893 be run through a preprocessor. */
896 /* Pointer to a vector of `struct compiler' that gives the spec for
897 compiling a file, based on its suffix.
898 A file that does not end in any of these suffixes will be passed
899 unchanged to the loader and nothing else will be done to it.
901 An entry containing two 0s is used to terminate the vector.
903 If multiple entries match a file, the last matching one is used. */
905 static struct compiler *compilers;
907 /* Number of entries in `compilers', not counting the null terminator. */
909 static int n_compilers;
911 /* The default list of file name suffixes and their compilation specs. */
913 static const struct compiler default_compilers[] =
915 /* Add lists of suffixes of known languages here. If those languages
916 were not present when we built the driver, we will hit these copies
917 and be given a more meaningful error than "file not used since
918 linking is not done". */
919 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
920 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
921 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
922 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
923 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
924 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
925 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
926 {".F", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
927 {".FPP", "#Fortran", 0, 0, 0},
928 {".f90", "#Fortran 95", 0, 0, 0}, {".f95", "#Fortran 95", 0, 0, 0},
929 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
930 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
931 {".r", "#Ratfor", 0, 0, 0},
932 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
933 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
934 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
935 /* Next come the entries for C. */
936 {".c", "@c", 0, 1, 1},
938 /* cc1 has an integrated ISO C preprocessor. We should invoke the
939 external preprocessor if -save-temps is given. */
940 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
942 %{traditional|ftraditional:\
943 %eGNU C no longer supports -traditional without -E}\
945 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
946 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
947 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
949 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
950 cc1 %(cpp_unique_options) %(cc1_options)}}}\
951 %{!fsyntax-only:%(invoke_as)}} \
953 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
954 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
955 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
956 cc1 %(cpp_unique_options) %(cc1_options)}}\
957 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
959 "%{!E:%e-E required when input is from standard input}\
960 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
961 {".h", "@c-header", 0, 0, 0},
963 /* cc1 has an integrated ISO C preprocessor. We should invoke the
964 external preprocessor if -save-temps is given. */
965 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
967 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
968 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
969 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
971 -o %g.s %{!o*:--output-pch=%i.gch}\
972 %W{o*:--output-pch=%*}%V}\
973 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
974 cc1 %(cpp_unique_options) %(cc1_options)\
975 -o %g.s %{!o*:--output-pch=%i.gch}\
976 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
977 {".i", "@cpp-output", 0, 1, 0},
979 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
980 {".s", "@assembler", 0, 1, 0},
982 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
983 {".S", "@assembler-with-cpp", 0, 1, 0},
984 {"@assembler-with-cpp",
985 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
986 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
987 %{E|M|MM:%(cpp_debug_options)}\
988 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
989 as %(asm_debug) %(asm_options) %|.s %A }}}}"
991 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
992 %{E|M|MM:%(cpp_debug_options)}\
993 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
994 as %(asm_debug) %(asm_options) %m.s %A }}}}"
999 /* Mark end of table. */
1003 /* Number of elements in default_compilers, not counting the terminator. */
1005 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1007 /* A vector of options to give to the linker.
1008 These options are accumulated by %x,
1009 and substituted into the linker command with %X. */
1010 static int n_linker_options;
1011 static char **linker_options;
1013 /* A vector of options to give to the assembler.
1014 These options are accumulated by -Wa,
1015 and substituted into the assembler command with %Y. */
1016 static int n_assembler_options;
1017 static char **assembler_options;
1019 /* A vector of options to give to the preprocessor.
1020 These options are accumulated by -Wp,
1021 and substituted into the preprocessor command with %Z. */
1022 static int n_preprocessor_options;
1023 static char **preprocessor_options;
1025 /* Define how to map long options into short ones. */
1027 /* This structure describes one mapping. */
1030 /* The long option's name. */
1031 const char *const name;
1032 /* The equivalent short option. */
1033 const char *const equivalent;
1034 /* Argument info. A string of flag chars; NULL equals no options.
1035 a => argument required.
1036 o => argument optional.
1037 j => join argument to equivalent, making one word.
1038 * => require other text after NAME as an argument. */
1039 const char *const arg_info;
1042 /* This is the table of mappings. Mappings are tried sequentially
1043 for each option encountered; the first one that matches, wins. */
1045 static const struct option_map option_map[] =
1047 {"--all-warnings", "-Wall", 0},
1048 {"--ansi", "-ansi", 0},
1049 {"--assemble", "-S", 0},
1050 {"--assert", "-A", "a"},
1051 {"--classpath", "-fclasspath=", "aj"},
1052 {"--bootclasspath", "-fbootclasspath=", "aj"},
1053 {"--CLASSPATH", "-fclasspath=", "aj"},
1054 {"--combine", "-combine", 0},
1055 {"--comments", "-C", 0},
1056 {"--comments-in-macros", "-CC", 0},
1057 {"--compile", "-c", 0},
1058 {"--debug", "-g", "oj"},
1059 {"--define-macro", "-D", "aj"},
1060 {"--dependencies", "-M", 0},
1061 {"--dump", "-d", "a"},
1062 {"--dumpbase", "-dumpbase", "a"},
1063 {"--entry", "-e", 0},
1064 {"--extra-warnings", "-W", 0},
1065 {"--for-assembler", "-Wa", "a"},
1066 {"--for-linker", "-Xlinker", "a"},
1067 {"--force-link", "-u", "a"},
1068 {"--imacros", "-imacros", "a"},
1069 {"--include", "-include", "a"},
1070 {"--include-barrier", "-I-", 0},
1071 {"--include-directory", "-I", "aj"},
1072 {"--include-directory-after", "-idirafter", "a"},
1073 {"--include-prefix", "-iprefix", "a"},
1074 {"--include-with-prefix", "-iwithprefix", "a"},
1075 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1076 {"--include-with-prefix-after", "-iwithprefix", "a"},
1077 {"--language", "-x", "a"},
1078 {"--library-directory", "-L", "a"},
1079 {"--machine", "-m", "aj"},
1080 {"--machine-", "-m", "*j"},
1081 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1082 {"--no-line-commands", "-P", 0},
1083 {"--no-precompiled-includes", "-noprecomp", 0},
1084 {"--no-standard-includes", "-nostdinc", 0},
1085 {"--no-standard-libraries", "-nostdlib", 0},
1086 {"--no-warnings", "-w", 0},
1087 {"--optimize", "-O", "oj"},
1088 {"--output", "-o", "a"},
1089 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1090 {"--param", "--param", "a"},
1091 {"--pedantic", "-pedantic", 0},
1092 {"--pedantic-errors", "-pedantic-errors", 0},
1093 {"--pie", "-pie", 0},
1094 {"--pipe", "-pipe", 0},
1095 {"--prefix", "-B", "a"},
1096 {"--preprocess", "-E", 0},
1097 {"--print-search-dirs", "-print-search-dirs", 0},
1098 {"--print-file-name", "-print-file-name=", "aj"},
1099 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1100 {"--print-missing-file-dependencies", "-MG", 0},
1101 {"--print-multi-lib", "-print-multi-lib", 0},
1102 {"--print-multi-directory", "-print-multi-directory", 0},
1103 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1104 {"--print-prog-name", "-print-prog-name=", "aj"},
1105 {"--profile", "-p", 0},
1106 {"--profile-blocks", "-a", 0},
1107 {"--quiet", "-q", 0},
1108 {"--resource", "-fcompile-resource=", "aj"},
1109 {"--save-temps", "-save-temps", 0},
1110 {"--shared", "-shared", 0},
1111 {"--silent", "-q", 0},
1112 {"--specs", "-specs=", "aj"},
1113 {"--static", "-static", 0},
1114 {"--std", "-std=", "aj"},
1115 {"--symbolic", "-symbolic", 0},
1116 {"--time", "-time", 0},
1117 {"--trace-includes", "-H", 0},
1118 {"--traditional", "-traditional", 0},
1119 {"--traditional-cpp", "-traditional-cpp", 0},
1120 {"--trigraphs", "-trigraphs", 0},
1121 {"--undefine-macro", "-U", "aj"},
1122 {"--user-dependencies", "-MM", 0},
1123 {"--verbose", "-v", 0},
1124 {"--warn-", "-W", "*j"},
1125 {"--write-dependencies", "-MD", 0},
1126 {"--write-user-dependencies", "-MMD", 0},
1131 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1132 static const struct {
1133 const char *const option_found;
1134 const char *const replacements;
1135 } target_option_translations[] =
1137 TARGET_OPTION_TRANSLATE_TABLE,
1142 /* Translate the options described by *ARGCP and *ARGVP.
1143 Make a new vector and store it back in *ARGVP,
1144 and store its length in *ARGVC. */
1147 translate_options (int *argcp, const char *const **argvp)
1151 const char *const *argv = *argvp;
1152 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1153 const char **newv = xmalloc (newvsize);
1157 newv[newindex++] = argv[i++];
1161 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1165 target_option_translations[tott_idx].option_found;
1168 if (strcmp (target_option_translations[tott_idx].option_found,
1175 for (sp = target_option_translations[tott_idx].replacements;
1182 newvsize += spaces * sizeof (const char *);
1183 newv = xrealloc (newv, newvsize);
1185 sp = target_option_translations[tott_idx].replacements;
1194 newv[newindex++] = np;
1195 while (*np != ' ' && *np)
1206 if (target_option_translations[tott_idx].option_found)
1210 /* Translate -- options. */
1211 if (argv[i][0] == '-' && argv[i][1] == '-')
1214 /* Find a mapping that applies to this option. */
1215 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1217 size_t optlen = strlen (option_map[j].name);
1218 size_t arglen = strlen (argv[i]);
1219 size_t complen = arglen > optlen ? optlen : arglen;
1220 const char *arginfo = option_map[j].arg_info;
1225 if (!strncmp (argv[i], option_map[j].name, complen))
1227 const char *arg = 0;
1229 if (arglen < optlen)
1232 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1233 if (strlen (option_map[k].name) >= arglen
1234 && !strncmp (argv[i], option_map[k].name, arglen))
1236 error ("ambiguous abbreviation %s", argv[i]);
1240 if (k != ARRAY_SIZE (option_map))
1244 if (arglen > optlen)
1246 /* If the option has an argument, accept that. */
1247 if (argv[i][optlen] == '=')
1248 arg = argv[i] + optlen + 1;
1250 /* If this mapping requires extra text at end of name,
1251 accept that as "argument". */
1252 else if (strchr (arginfo, '*') != 0)
1253 arg = argv[i] + optlen;
1255 /* Otherwise, extra text at end means mismatch.
1256 Try other mappings. */
1261 else if (strchr (arginfo, '*') != 0)
1263 error ("incomplete `%s' option", option_map[j].name);
1267 /* Handle arguments. */
1268 if (strchr (arginfo, 'a') != 0)
1274 error ("missing argument to `%s' option",
1275 option_map[j].name);
1282 else if (strchr (arginfo, '*') != 0)
1284 else if (strchr (arginfo, 'o') == 0)
1287 error ("extraneous argument to `%s' option",
1288 option_map[j].name);
1292 /* Store the translation as one argv elt or as two. */
1293 if (arg != 0 && strchr (arginfo, 'j') != 0)
1294 newv[newindex++] = concat (option_map[j].equivalent, arg,
1298 newv[newindex++] = option_map[j].equivalent;
1299 newv[newindex++] = arg;
1302 newv[newindex++] = option_map[j].equivalent;
1310 /* Handle old-fashioned options--just copy them through,
1311 with their arguments. */
1312 else if (argv[i][0] == '-')
1314 const char *p = argv[i] + 1;
1318 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1319 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1320 else if (WORD_SWITCH_TAKES_ARG (p))
1321 nskip += WORD_SWITCH_TAKES_ARG (p);
1322 else if ((c == 'B' || c == 'b' || c == 'x')
1325 else if (! strcmp (p, "Xlinker"))
1327 else if (! strcmp (p, "Xpreprocessor"))
1329 else if (! strcmp (p, "Xassembler"))
1332 /* Watch out for an option at the end of the command line that
1333 is missing arguments, and avoid skipping past the end of the
1335 if (nskip + i > argc)
1340 newv[newindex++] = argv[i++];
1345 /* Ordinary operands, or +e options. */
1346 newv[newindex++] = argv[i++];
1356 skip_whitespace (char *p)
1360 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1361 be considered whitespace. */
1362 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1364 else if (*p == '\n' || *p == ' ' || *p == '\t')
1378 /* Structures to keep track of prefixes to try when looking for files. */
1382 const char *prefix; /* String to prepend to the path. */
1383 struct prefix_list *next; /* Next in linked list. */
1384 int require_machine_suffix; /* Don't use without machine_suffix. */
1385 /* 2 means try both machine_suffix and just_machine_suffix. */
1386 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1387 int priority; /* Sort key - priority within list. */
1388 int os_multilib; /* 1 if OS multilib scheme should be used,
1389 0 for GCC multilib scheme. */
1394 struct prefix_list *plist; /* List of prefixes to try */
1395 int max_len; /* Max length of a prefix in PLIST */
1396 const char *name; /* Name of this list (used in config stuff) */
1399 /* List of prefixes to try when looking for executables. */
1401 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1403 /* List of prefixes to try when looking for startup (crt0) files. */
1405 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1407 /* List of prefixes to try when looking for include files. */
1409 static struct path_prefix include_prefixes = { 0, 0, "include" };
1411 /* Suffix to attach to directories searched for commands.
1412 This looks like `MACHINE/VERSION/'. */
1414 static const char *machine_suffix = 0;
1416 /* Suffix to attach to directories searched for commands.
1417 This is just `MACHINE/'. */
1419 static const char *just_machine_suffix = 0;
1421 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1423 static const char *gcc_exec_prefix;
1425 /* Adjusted value of standard_libexec_prefix. */
1427 static const char *gcc_libexec_prefix;
1429 /* Default prefixes to attach to command names. */
1431 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1432 #undef MD_EXEC_PREFIX
1433 #undef MD_STARTFILE_PREFIX
1434 #undef MD_STARTFILE_PREFIX_1
1437 /* If no prefixes defined, use the null string, which will disable them. */
1438 #ifndef MD_EXEC_PREFIX
1439 #define MD_EXEC_PREFIX ""
1441 #ifndef MD_STARTFILE_PREFIX
1442 #define MD_STARTFILE_PREFIX ""
1444 #ifndef MD_STARTFILE_PREFIX_1
1445 #define MD_STARTFILE_PREFIX_1 ""
1448 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1449 static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
1450 static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
1451 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1453 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1454 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1455 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1456 static const char *const standard_startfile_prefix_1 = "/lib/";
1457 static const char *const standard_startfile_prefix_2 = "/usr/lib/";
1459 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1460 static const char *tooldir_prefix;
1462 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1464 static const char *standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1466 /* Subdirectory to use for locating libraries. Set by
1467 set_multilib_dir based on the compilation options. */
1469 static const char *multilib_dir;
1471 /* Subdirectory to use for locating libraries in OS conventions. Set by
1472 set_multilib_dir based on the compilation options. */
1474 static const char *multilib_os_dir;
1476 /* Structure to keep track of the specs that have been defined so far.
1477 These are accessed using %(specname) or %[specname] in a compiler
1482 /* The following 2 fields must be first */
1483 /* to allow EXTRA_SPECS to be initialized */
1484 const char *name; /* name of the spec. */
1485 const char *ptr; /* available ptr if no static pointer */
1487 /* The following fields are not initialized */
1488 /* by EXTRA_SPECS */
1489 const char **ptr_spec; /* pointer to the spec itself. */
1490 struct spec_list *next; /* Next spec in linked list. */
1491 int name_len; /* length of the name */
1492 int alloc_p; /* whether string was allocated */
1495 #define INIT_STATIC_SPEC(NAME,PTR) \
1496 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1498 /* List of statically defined specs. */
1499 static struct spec_list static_specs[] =
1501 INIT_STATIC_SPEC ("asm", &asm_spec),
1502 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1503 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1504 INIT_STATIC_SPEC ("asm_options", &asm_options),
1505 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1506 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1507 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1508 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1509 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1510 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1511 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1512 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1513 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1514 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1515 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1516 INIT_STATIC_SPEC ("link", &link_spec),
1517 INIT_STATIC_SPEC ("lib", &lib_spec),
1518 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1519 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1520 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1521 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1522 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1523 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1524 INIT_STATIC_SPEC ("version", &compiler_version),
1525 INIT_STATIC_SPEC ("multilib", &multilib_select),
1526 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1527 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1528 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1529 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1530 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1531 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1532 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1533 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1534 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1535 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1536 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1537 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1538 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1541 #ifdef EXTRA_SPECS /* additional specs needed */
1542 /* Structure to keep track of just the first two args of a spec_list.
1543 That is all that the EXTRA_SPECS macro gives us. */
1546 const char *const name;
1547 const char *const ptr;
1550 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1551 static struct spec_list *extra_specs = (struct spec_list *) 0;
1554 /* List of dynamically allocates specs that have been defined so far. */
1556 static struct spec_list *specs = (struct spec_list *) 0;
1558 /* List of static spec functions. */
1560 static const struct spec_function static_spec_functions[] =
1562 { "if-exists", if_exists_spec_function },
1563 { "if-exists-else", if_exists_else_spec_function },
1567 static int processing_spec_function;
1569 /* Add appropriate libgcc specs to OBSTACK, taking into account
1570 various permutations of -shared-libgcc, -shared, and such. */
1572 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1574 #ifndef USE_LD_AS_NEEDED
1575 #define USE_LD_AS_NEEDED 0
1579 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1580 const char *static_name, const char *eh_name)
1584 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name,
1585 "}%{!static:%{!static-libgcc:",
1586 #if USE_LD_AS_NEEDED
1587 "%{!shared-libgcc:", static_name,
1588 " --as-needed ", shared_name, " --no-as-needed}"
1589 "%{shared-libgcc:", shared_name, "%{!shared: ", static_name,
1592 "%{!shared:%{!shared-libgcc:", static_name, " ",
1593 eh_name, "}%{shared-libgcc:", shared_name, " ",
1594 static_name, "}}%{shared:",
1596 "%{shared-libgcc:", shared_name,
1597 "}%{!shared-libgcc:", static_name, "}",
1604 obstack_grow (obstack, buf, strlen (buf));
1607 #endif /* ENABLE_SHARED_LIBGCC */
1609 /* Initialize the specs lookup routines. */
1614 struct spec_list *next = (struct spec_list *) 0;
1615 struct spec_list *sl = (struct spec_list *) 0;
1619 return; /* Already initialized. */
1622 notice ("Using built-in specs.\n");
1625 extra_specs = xcalloc (sizeof (struct spec_list),
1626 ARRAY_SIZE (extra_specs_1));
1628 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1630 sl = &extra_specs[i];
1631 sl->name = extra_specs_1[i].name;
1632 sl->ptr = extra_specs_1[i].ptr;
1634 sl->name_len = strlen (sl->name);
1635 sl->ptr_spec = &sl->ptr;
1640 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1641 on ?: in file-scope variable initializations. */
1642 asm_debug = ASM_DEBUG_SPEC;
1644 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1646 sl = &static_specs[i];
1651 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1652 /* ??? If neither -shared-libgcc nor --static-libgcc was
1653 seen, then we should be making an educated guess. Some proposed
1654 heuristics for ELF include:
1656 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1657 program will be doing dynamic loading, which will likely
1658 need the shared libgcc.
1660 (2) If "-ldl", then it's also a fair bet that we're doing
1663 (3) For each ET_DYN we're linking against (either through -lfoo
1664 or /some/path/foo.so), check to see whether it or one of
1665 its dependencies depends on a shared libgcc.
1669 If the runtime is fixed to look for program headers instead
1670 of calling __register_frame_info at all, for each object,
1671 use the shared libgcc if any EH symbol referenced.
1673 If crtstuff is fixed to not invoke __register_frame_info
1674 automatically, for each object, use the shared libgcc if
1675 any non-empty unwind section found.
1677 Doing any of this probably requires invoking an external program to
1678 do the actual object file scanning. */
1680 const char *p = libgcc_spec;
1683 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1684 when given the proper command line arguments. */
1687 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1689 init_gcc_specs (&obstack,
1690 #ifdef NO_SHARED_LIBGCC_MULTILIB
1698 #ifdef USE_LIBUNWIND_EXCEPTIONS
1706 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1708 /* Ug. We don't know shared library extensions. Hope that
1709 systems that use this form don't do shared libraries. */
1710 init_gcc_specs (&obstack,
1711 #ifdef NO_SHARED_LIBGCC_MULTILIB
1719 #ifdef USE_LIBUNWIND_EXCEPTIONS
1728 obstack_1grow (&obstack, *p);
1729 in_sep = (*p == ' ');
1734 obstack_1grow (&obstack, '\0');
1735 libgcc_spec = obstack_finish (&obstack);
1738 #ifdef USE_AS_TRADITIONAL_FORMAT
1739 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1741 static const char tf[] = "--traditional-format ";
1742 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1743 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1744 asm_spec = obstack_finish (&obstack);
1748 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1749 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1750 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1751 link_spec = obstack_finish (&obstack);
1757 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1758 removed; If the spec starts with a + then SPEC is added to the end of the
1762 set_spec (const char *name, const char *spec)
1764 struct spec_list *sl;
1765 const char *old_spec;
1766 int name_len = strlen (name);
1769 /* If this is the first call, initialize the statically allocated specs. */
1772 struct spec_list *next = (struct spec_list *) 0;
1773 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1775 sl = &static_specs[i];
1782 /* See if the spec already exists. */
1783 for (sl = specs; sl; sl = sl->next)
1784 if (name_len == sl->name_len && !strcmp (sl->name, name))
1789 /* Not found - make it. */
1790 sl = xmalloc (sizeof (struct spec_list));
1791 sl->name = xstrdup (name);
1792 sl->name_len = name_len;
1793 sl->ptr_spec = &sl->ptr;
1795 *(sl->ptr_spec) = "";
1800 old_spec = *(sl->ptr_spec);
1801 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1802 ? concat (old_spec, spec + 1, NULL)
1807 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1810 /* Free the old spec. */
1811 if (old_spec && sl->alloc_p)
1812 free ((void *) old_spec);
1817 /* Accumulate a command (program name and args), and run it. */
1819 /* Vector of pointers to arguments in the current line of specifications. */
1821 static const char **argbuf;
1823 /* Number of elements allocated in argbuf. */
1825 static int argbuf_length;
1827 /* Number of elements in argbuf currently in use (containing args). */
1829 static int argbuf_index;
1831 /* Position in the argbuf array containing the name of the output file
1832 (the value associated with the "-o" flag). */
1834 static int have_o_argbuf_index = 0;
1836 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1837 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1840 static struct temp_name {
1841 const char *suffix; /* suffix associated with the code. */
1842 int length; /* strlen (suffix). */
1843 int unique; /* Indicates whether %g or %u/%U was used. */
1844 const char *filename; /* associated filename. */
1845 int filename_length; /* strlen (filename). */
1846 struct temp_name *next;
1849 /* Number of commands executed so far. */
1851 static int execution_count;
1853 /* Number of commands that exited with a signal. */
1855 static int signal_count;
1857 /* Name with which this program was invoked. */
1859 static const char *programname;
1861 /* Allocate the argument vector. */
1867 argbuf = xmalloc (argbuf_length * sizeof (const char *));
1870 /* Clear out the vector of arguments (after a command is executed). */
1878 /* Add one argument to the vector at the end.
1879 This is done when a space is seen or at the end of the line.
1880 If DELETE_ALWAYS is nonzero, the arg is a filename
1881 and the file should be deleted eventually.
1882 If DELETE_FAILURE is nonzero, the arg is a filename
1883 and the file should be deleted if this compilation fails. */
1886 store_arg (const char *arg, int delete_always, int delete_failure)
1888 if (argbuf_index + 1 == argbuf_length)
1889 argbuf = xrealloc (argbuf, (argbuf_length *= 2) * sizeof (const char *));
1891 argbuf[argbuf_index++] = arg;
1892 argbuf[argbuf_index] = 0;
1894 if (strcmp (arg, "-o") == 0)
1895 have_o_argbuf_index = argbuf_index;
1896 if (delete_always || delete_failure)
1897 record_temp_file (arg, delete_always, delete_failure);
1900 /* Load specs from a file name named FILENAME, replacing occurrences of
1901 various different types of line-endings, \r\n, \n\r and just \r, with
1905 load_specs (const char *filename)
1909 struct stat statbuf;
1916 notice ("Reading specs from %s\n", filename);
1918 /* Open and stat the file. */
1919 desc = open (filename, O_RDONLY, 0);
1921 pfatal_with_name (filename);
1922 if (stat (filename, &statbuf) < 0)
1923 pfatal_with_name (filename);
1925 /* Read contents of file into BUFFER. */
1926 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1927 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1929 pfatal_with_name (filename);
1930 buffer[readlen] = 0;
1933 specs = xmalloc (readlen + 1);
1935 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1941 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1943 else if (*(buffer_p + 1) == '\n') /* \r\n */
1957 /* Read compilation specs from a file named FILENAME,
1958 replacing the default ones.
1960 A suffix which starts with `*' is a definition for
1961 one of the machine-specific sub-specs. The "suffix" should be
1962 *asm, *cc1, *cpp, *link, *startfile, etc.
1963 The corresponding spec is stored in asm_spec, etc.,
1964 rather than in the `compilers' vector.
1966 Anything invalid in the file is a fatal error. */
1969 read_specs (const char *filename, int main_p)
1974 buffer = load_specs (filename);
1976 /* Scan BUFFER for specs, putting them in the vector. */
1982 char *in, *out, *p1, *p2, *p3;
1984 /* Advance P in BUFFER to the next nonblank nocomment line. */
1985 p = skip_whitespace (p);
1989 /* Is this a special command that starts with '%'? */
1990 /* Don't allow this for the main specs file, since it would
1991 encourage people to overwrite it. */
1992 if (*p == '%' && !main_p)
1995 while (*p && *p != '\n')
2001 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2002 && (p1[sizeof "%include" - 1] == ' '
2003 || p1[sizeof "%include" - 1] == '\t'))
2007 p1 += sizeof ("%include");
2008 while (*p1 == ' ' || *p1 == '\t')
2011 if (*p1++ != '<' || p[-2] != '>')
2012 fatal ("specs %%include syntax malformed after %ld characters",
2013 (long) (p1 - buffer + 1));
2016 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0);
2017 read_specs (new_filename ? new_filename : p1, FALSE);
2020 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2021 && (p1[sizeof "%include_noerr" - 1] == ' '
2022 || p1[sizeof "%include_noerr" - 1] == '\t'))
2026 p1 += sizeof "%include_noerr";
2027 while (*p1 == ' ' || *p1 == '\t')
2030 if (*p1++ != '<' || p[-2] != '>')
2031 fatal ("specs %%include syntax malformed after %ld characters",
2032 (long) (p1 - buffer + 1));
2035 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, 0);
2037 read_specs (new_filename, FALSE);
2038 else if (verbose_flag)
2039 notice ("could not find specs file %s\n", p1);
2042 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2043 && (p1[sizeof "%rename" - 1] == ' '
2044 || p1[sizeof "%rename" - 1] == '\t'))
2047 struct spec_list *sl;
2048 struct spec_list *newsl;
2050 /* Get original name. */
2051 p1 += sizeof "%rename";
2052 while (*p1 == ' ' || *p1 == '\t')
2055 if (! ISALPHA ((unsigned char) *p1))
2056 fatal ("specs %%rename syntax malformed after %ld characters",
2057 (long) (p1 - buffer));
2060 while (*p2 && !ISSPACE ((unsigned char) *p2))
2063 if (*p2 != ' ' && *p2 != '\t')
2064 fatal ("specs %%rename syntax malformed after %ld characters",
2065 (long) (p2 - buffer));
2069 while (*p2 == ' ' || *p2 == '\t')
2072 if (! ISALPHA ((unsigned char) *p2))
2073 fatal ("specs %%rename syntax malformed after %ld characters",
2074 (long) (p2 - buffer));
2076 /* Get new spec name. */
2078 while (*p3 && !ISSPACE ((unsigned char) *p3))
2082 fatal ("specs %%rename syntax malformed after %ld characters",
2083 (long) (p3 - buffer));
2086 for (sl = specs; sl; sl = sl->next)
2087 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2091 fatal ("specs %s spec was not found to be renamed", p1);
2093 if (strcmp (p1, p2) == 0)
2096 for (newsl = specs; newsl; newsl = newsl->next)
2097 if (strcmp (newsl->name, p2) == 0)
2098 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2103 notice ("rename spec %s to %s\n", p1, p2);
2105 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2109 set_spec (p2, *(sl->ptr_spec));
2111 free ((void *) *(sl->ptr_spec));
2113 *(sl->ptr_spec) = "";
2118 fatal ("specs unknown %% command after %ld characters",
2119 (long) (p1 - buffer));
2122 /* Find the colon that should end the suffix. */
2124 while (*p1 && *p1 != ':' && *p1 != '\n')
2127 /* The colon shouldn't be missing. */
2129 fatal ("specs file malformed after %ld characters",
2130 (long) (p1 - buffer));
2132 /* Skip back over trailing whitespace. */
2134 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2137 /* Copy the suffix to a string. */
2138 suffix = save_string (p, p2 - p);
2139 /* Find the next line. */
2140 p = skip_whitespace (p1 + 1);
2142 fatal ("specs file malformed after %ld characters",
2143 (long) (p - buffer));
2146 /* Find next blank line or end of string. */
2147 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2150 /* Specs end at the blank line and do not include the newline. */
2151 spec = save_string (p, p1 - p);
2154 /* Delete backslash-newline sequences from the spec. */
2159 if (in[0] == '\\' && in[1] == '\n')
2161 else if (in[0] == '#')
2162 while (*in && *in != '\n')
2170 if (suffix[0] == '*')
2172 if (! strcmp (suffix, "*link_command"))
2173 link_command_spec = spec;
2175 set_spec (suffix + 1, spec);
2179 /* Add this pair to the vector. */
2181 = xrealloc (compilers,
2182 (n_compilers + 2) * sizeof (struct compiler));
2184 compilers[n_compilers].suffix = suffix;
2185 compilers[n_compilers].spec = spec;
2187 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2191 link_command_spec = spec;
2194 if (link_command_spec == 0)
2195 fatal ("spec file has no spec for linking");
2198 /* Record the names of temporary files we tell compilers to write,
2199 and delete them at the end of the run. */
2201 /* This is the common prefix we use to make temp file names.
2202 It is chosen once for each run of this program.
2203 It is substituted into a spec by %g or %j.
2204 Thus, all temp file names contain this prefix.
2205 In practice, all temp file names start with this prefix.
2207 This prefix comes from the envvar TMPDIR if it is defined;
2208 otherwise, from the P_tmpdir macro if that is defined;
2209 otherwise, in /usr/tmp or /tmp;
2210 or finally the current directory if all else fails. */
2212 static const char *temp_filename;
2214 /* Length of the prefix. */
2216 static int temp_filename_length;
2218 /* Define the list of temporary files to delete. */
2223 struct temp_file *next;
2226 /* Queue of files to delete on success or failure of compilation. */
2227 static struct temp_file *always_delete_queue;
2228 /* Queue of files to delete on failure of compilation. */
2229 static struct temp_file *failure_delete_queue;
2231 /* Record FILENAME as a file to be deleted automatically.
2232 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2233 otherwise delete it in any case.
2234 FAIL_DELETE nonzero means delete it if a compilation step fails;
2235 otherwise delete it in any case. */
2238 record_temp_file (const char *filename, int always_delete, int fail_delete)
2240 char *const name = xstrdup (filename);
2244 struct temp_file *temp;
2245 for (temp = always_delete_queue; temp; temp = temp->next)
2246 if (! strcmp (name, temp->name))
2249 temp = xmalloc (sizeof (struct temp_file));
2250 temp->next = always_delete_queue;
2252 always_delete_queue = temp;
2259 struct temp_file *temp;
2260 for (temp = failure_delete_queue; temp; temp = temp->next)
2261 if (! strcmp (name, temp->name))
2264 temp = xmalloc (sizeof (struct temp_file));
2265 temp->next = failure_delete_queue;
2267 failure_delete_queue = temp;
2273 /* Delete all the temporary files whose names we previously recorded. */
2275 #ifndef DELETE_IF_ORDINARY
2276 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2279 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2280 if (unlink (NAME) < 0) \
2282 perror_with_name (NAME); \
2287 delete_if_ordinary (const char *name)
2293 printf ("Delete %s? (y or n) ", name);
2297 while ((c = getchar ()) != '\n' && c != EOF)
2300 if (i == 'y' || i == 'Y')
2302 DELETE_IF_ORDINARY (name, st, verbose_flag);
2306 delete_temp_files (void)
2308 struct temp_file *temp;
2310 for (temp = always_delete_queue; temp; temp = temp->next)
2311 delete_if_ordinary (temp->name);
2312 always_delete_queue = 0;
2315 /* Delete all the files to be deleted on error. */
2318 delete_failure_queue (void)
2320 struct temp_file *temp;
2322 for (temp = failure_delete_queue; temp; temp = temp->next)
2323 delete_if_ordinary (temp->name);
2327 clear_failure_queue (void)
2329 failure_delete_queue = 0;
2332 /* Build a list of search directories from PATHS.
2333 PREFIX is a string to prepend to the list.
2334 If CHECK_DIR_P is nonzero we ensure the directory exists.
2335 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2336 It is also used by the --print-search-dirs flag. */
2339 build_search_list (struct path_prefix *paths, const char *prefix,
2342 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2344 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2345 int first_time = TRUE;
2346 struct prefix_list *pprefix;
2348 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2349 obstack_1grow (&collect_obstack, '=');
2351 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2353 int len = strlen (pprefix->prefix);
2357 || is_directory (pprefix->prefix, machine_suffix, 0)))
2360 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2363 obstack_grow (&collect_obstack, pprefix->prefix, len);
2364 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2367 if (just_machine_suffix
2368 && pprefix->require_machine_suffix == 2
2370 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2373 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2376 obstack_grow (&collect_obstack, pprefix->prefix, len);
2377 obstack_grow (&collect_obstack, just_machine_suffix,
2381 if (! pprefix->require_machine_suffix)
2384 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2387 obstack_grow (&collect_obstack, pprefix->prefix, len);
2391 obstack_1grow (&collect_obstack, '\0');
2392 return obstack_finish (&collect_obstack);
2395 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2399 putenv_from_prefixes (struct path_prefix *paths, const char *env_var)
2401 putenv (build_search_list (paths, env_var, 1));
2404 /* Check whether NAME can be accessed in MODE. This is like access,
2405 except that it never considers directories to be executable. */
2408 access_check (const char *name, int mode)
2414 if (stat (name, &st) < 0
2415 || S_ISDIR (st.st_mode))
2419 return access (name, mode);
2422 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2423 access to check permissions.
2424 Return 0 if not found, otherwise return its name, allocated with malloc. */
2427 find_a_file (struct path_prefix *pprefix, const char *name, int mode,
2431 const char *const file_suffix =
2432 ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
2433 struct prefix_list *pl;
2434 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2435 const char *multilib_name, *multilib_os_name;
2437 #ifdef DEFAULT_ASSEMBLER
2438 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2439 return xstrdup (DEFAULT_ASSEMBLER);
2442 #ifdef DEFAULT_LINKER
2443 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2444 return xstrdup (DEFAULT_LINKER);
2448 len += strlen (machine_suffix);
2450 multilib_name = name;
2451 multilib_os_name = name;
2452 if (multilib && multilib_os_dir)
2454 int len1 = multilib_dir ? strlen (multilib_dir) + 1 : 0;
2455 int len2 = strlen (multilib_os_dir) + 1;
2457 len += len1 > len2 ? len1 : len2;
2459 multilib_name = ACONCAT ((multilib_dir, dir_separator_str, name,
2461 if (strcmp (multilib_os_dir, ".") != 0)
2462 multilib_os_name = ACONCAT ((multilib_os_dir, dir_separator_str, name,
2466 temp = xmalloc (len);
2468 /* Determine the filename to execute (special case for absolute paths). */
2470 if (IS_ABSOLUTE_PATH (name))
2472 if (access (name, mode) == 0)
2474 strcpy (temp, name);
2479 for (pl = pprefix->plist; pl; pl = pl->next)
2481 const char *this_name
2482 = pl->os_multilib ? multilib_os_name : multilib_name;
2486 /* Some systems have a suffix for executable files.
2487 So try appending that first. */
2488 if (file_suffix[0] != 0)
2490 strcpy (temp, pl->prefix);
2491 strcat (temp, machine_suffix);
2492 strcat (temp, multilib_name);
2493 strcat (temp, file_suffix);
2494 if (access_check (temp, mode) == 0)
2496 if (pl->used_flag_ptr != 0)
2497 *pl->used_flag_ptr = 1;
2502 /* Now try just the multilib_name. */
2503 strcpy (temp, pl->prefix);
2504 strcat (temp, machine_suffix);
2505 strcat (temp, multilib_name);
2506 if (access_check (temp, mode) == 0)
2508 if (pl->used_flag_ptr != 0)
2509 *pl->used_flag_ptr = 1;
2514 /* Certain prefixes are tried with just the machine type,
2515 not the version. This is used for finding as, ld, etc. */
2516 if (just_machine_suffix && pl->require_machine_suffix == 2)
2518 /* Some systems have a suffix for executable files.
2519 So try appending that first. */
2520 if (file_suffix[0] != 0)
2522 strcpy (temp, pl->prefix);
2523 strcat (temp, just_machine_suffix);
2524 strcat (temp, multilib_name);
2525 strcat (temp, file_suffix);
2526 if (access_check (temp, mode) == 0)
2528 if (pl->used_flag_ptr != 0)
2529 *pl->used_flag_ptr = 1;
2534 strcpy (temp, pl->prefix);
2535 strcat (temp, just_machine_suffix);
2536 strcat (temp, multilib_name);
2537 if (access_check (temp, mode) == 0)
2539 if (pl->used_flag_ptr != 0)
2540 *pl->used_flag_ptr = 1;
2545 /* Certain prefixes can't be used without the machine suffix
2546 when the machine or version is explicitly specified. */
2547 if (! pl->require_machine_suffix)
2549 /* Some systems have a suffix for executable files.
2550 So try appending that first. */
2551 if (file_suffix[0] != 0)
2553 strcpy (temp, pl->prefix);
2554 strcat (temp, this_name);
2555 strcat (temp, file_suffix);
2556 if (access_check (temp, mode) == 0)
2558 if (pl->used_flag_ptr != 0)
2559 *pl->used_flag_ptr = 1;
2564 strcpy (temp, pl->prefix);
2565 strcat (temp, this_name);
2566 if (access_check (temp, mode) == 0)
2568 if (pl->used_flag_ptr != 0)
2569 *pl->used_flag_ptr = 1;
2579 /* Ranking of prefixes in the sort list. -B prefixes are put before
2582 enum path_prefix_priority
2584 PREFIX_PRIORITY_B_OPT,
2585 PREFIX_PRIORITY_LAST
2588 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2589 order according to PRIORITY. Within each PRIORITY, new entries are
2592 If WARN is nonzero, we will warn if no file is found
2593 through this prefix. WARN should point to an int
2594 which will be set to 1 if this entry is used.
2596 COMPONENT is the value to be passed to update_path.
2598 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2599 the complete value of machine_suffix.
2600 2 means try both machine_suffix and just_machine_suffix. */
2603 add_prefix (struct path_prefix *pprefix, const char *prefix,
2604 const char *component, /* enum prefix_priority */ int priority,
2605 int require_machine_suffix, int *warn, int os_multilib)
2607 struct prefix_list *pl, **prev;
2610 for (prev = &pprefix->plist;
2611 (*prev) != NULL && (*prev)->priority <= priority;
2612 prev = &(*prev)->next)
2615 /* Keep track of the longest prefix. */
2617 prefix = update_path (prefix, component);
2618 len = strlen (prefix);
2619 if (len > pprefix->max_len)
2620 pprefix->max_len = len;
2622 pl = xmalloc (sizeof (struct prefix_list));
2623 pl->prefix = prefix;
2624 pl->require_machine_suffix = require_machine_suffix;
2625 pl->used_flag_ptr = warn;
2626 pl->priority = priority;
2627 pl->os_multilib = os_multilib;
2631 /* Insert after PREV. */
2636 /* Same as add_prefix, but prepending target_system_root to prefix. */
2638 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2639 const char *component,
2640 /* enum prefix_priority */ int priority,
2641 int require_machine_suffix, int *warn, int os_multilib)
2643 if (!IS_ABSOLUTE_PATH (prefix))
2646 if (target_system_root)
2648 if (target_sysroot_suffix)
2649 prefix = concat (target_sysroot_suffix, prefix, NULL);
2650 prefix = concat (target_system_root, prefix, NULL);
2652 /* We have to override this because GCC's notion of sysroot
2653 moves along with GCC. */
2657 add_prefix (pprefix, prefix, component, priority,
2658 require_machine_suffix, warn, os_multilib);
2661 /* Execute the command specified by the arguments on the current line of spec.
2662 When using pipes, this includes several piped-together commands
2663 with `|' between them.
2665 Return 0 if successful, -1 if failed. */
2671 int n_commands; /* # of command. */
2675 const char *prog; /* program name. */
2676 const char **argv; /* vector of args. */
2677 int pid; /* pid of process for this command. */
2680 struct command *commands; /* each command buffer with above info. */
2682 if (processing_spec_function)
2685 /* Count # of piped commands. */
2686 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2687 if (strcmp (argbuf[i], "|") == 0)
2690 /* Get storage for each command. */
2691 commands = alloca (n_commands * sizeof (struct command));
2693 /* Split argbuf into its separate piped processes,
2694 and record info about each one.
2695 Also search for the programs that are to be run. */
2697 commands[0].prog = argbuf[0]; /* first command. */
2698 commands[0].argv = &argbuf[0];
2699 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, 0);
2702 commands[0].argv[0] = string;
2704 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2705 if (strcmp (argbuf[i], "|") == 0)
2706 { /* each command. */
2707 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2708 fatal ("-pipe not supported");
2710 argbuf[i] = 0; /* termination of command args. */
2711 commands[n_commands].prog = argbuf[i + 1];
2712 commands[n_commands].argv = &argbuf[i + 1];
2713 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2716 commands[n_commands].argv[0] = string;
2720 argbuf[argbuf_index] = 0;
2722 /* If -v, print what we are about to do, and maybe query. */
2726 /* For help listings, put a blank line between sub-processes. */
2727 if (print_help_list)
2728 fputc ('\n', stderr);
2730 /* Print each piped command as a separate line. */
2731 for (i = 0; i < n_commands; i++)
2733 const char *const *j;
2735 if (verbose_only_flag)
2737 for (j = commands[i].argv; *j; j++)
2740 fprintf (stderr, " \"");
2741 for (p = *j; *p; ++p)
2743 if (*p == '"' || *p == '\\' || *p == '$')
2744 fputc ('\\', stderr);
2747 fputc ('"', stderr);
2751 for (j = commands[i].argv; *j; j++)
2752 fprintf (stderr, " %s", *j);
2754 /* Print a pipe symbol after all but the last command. */
2755 if (i + 1 != n_commands)
2756 fprintf (stderr, " |");
2757 fprintf (stderr, "\n");
2760 if (verbose_only_flag != 0)
2762 /* verbose_only_flag should act as if the spec was
2763 executed, so increment execution_count before
2764 returning. This prevents spurious warnings about
2765 unused linker input files, etc. */
2770 notice ("\nGo ahead? (y or n) ");
2774 while (getchar () != '\n')
2777 if (i != 'y' && i != 'Y')
2782 #ifdef ENABLE_VALGRIND_CHECKING
2783 /* Run the each command through valgrind. To simplify prepending the
2784 path to valgrind and the option "-q" (for quiet operation unless
2785 something triggers), we allocate a separate argv array. */
2787 for (i = 0; i < n_commands; i++)
2793 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
2796 argv = alloca ((argc + 3) * sizeof (char *));
2798 argv[0] = VALGRIND_PATH;
2800 for (j = 2; j < argc + 2; j++)
2801 argv[j] = commands[i].argv[j - 2];
2804 commands[i].argv = argv;
2805 commands[i].prog = argv[0];
2809 /* Run each piped subprocess. */
2811 for (i = 0; i < n_commands; i++)
2813 char *errmsg_fmt, *errmsg_arg;
2814 const char *string = commands[i].argv[0];
2816 /* For some bizarre reason, the second argument of execvp() is
2817 char *const *, not const char *const *. */
2818 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2819 programname, temp_filename,
2820 &errmsg_fmt, &errmsg_arg,
2821 ((i == 0 ? PEXECUTE_FIRST : 0)
2822 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2823 | (string == commands[i].prog
2824 ? PEXECUTE_SEARCH : 0)
2825 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2827 if (commands[i].pid == -1)
2828 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2830 if (string != commands[i].prog)
2831 free ((void *) string);
2836 /* Wait for all the subprocesses to finish.
2837 We don't care what order they finish in;
2838 we know that N_COMMANDS waits will get them all.
2839 Ignore subprocesses that we don't know about,
2840 since they can be spawned by the process that exec'ed us. */
2844 #ifdef HAVE_GETRUSAGE
2846 double ut = 0.0, st = 0.0;
2849 for (i = 0; i < n_commands;)
2855 pid = pwait (commands[i].pid, &status, 0);
2859 #ifdef HAVE_GETRUSAGE
2862 /* getrusage returns the total resource usage of all children
2863 up to now. Copy the previous values into prus, get the
2864 current statistics, then take the difference. */
2867 getrusage (RUSAGE_CHILDREN, &rus);
2868 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2869 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2870 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2872 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2873 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2874 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2878 for (j = 0; j < n_commands; j++)
2879 if (commands[j].pid == pid)
2882 if (WIFSIGNALED (status))
2885 /* SIGPIPE is a special case. It happens in -pipe mode
2886 when the compiler dies before the preprocessor is
2887 done, or the assembler dies before the compiler is
2888 done. There's generally been an error already, and
2889 this is just fallout. So don't generate another error
2890 unless we would otherwise have succeeded. */
2891 if (WTERMSIG (status) == SIGPIPE
2892 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2897 Internal error: %s (program %s)\n\
2898 Please submit a full bug report.\n\
2899 See %s for instructions.",
2900 strsignal (WTERMSIG (status)), commands[j].prog,
2905 else if (WIFEXITED (status)
2906 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2908 if (WEXITSTATUS (status) > greatest_status)
2909 greatest_status = WEXITSTATUS (status);
2912 #ifdef HAVE_GETRUSAGE
2913 if (report_times && ut + st != 0)
2914 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2923 /* Find all the switches given to us
2924 and make a vector describing them.
2925 The elements of the vector are strings, one per switch given.
2926 If a switch uses following arguments, then the `part1' field
2927 is the switch itself and the `args' field
2928 is a null-terminated vector containing the following arguments.
2929 The `live_cond' field is:
2931 1 if the switch is true in a conditional spec,
2932 -1 if false (overridden by a later switch)
2933 -2 if this switch should be ignored (used in %<S)
2934 The `validated' field is nonzero if any spec has looked at this switch;
2935 if it remains zero at the end of the run, it must be meaningless. */
2938 #define SWITCH_FALSE -1
2939 #define SWITCH_IGNORE -2
2940 #define SWITCH_LIVE 1
2947 unsigned char validated;
2948 unsigned char ordering;
2951 static struct switchstr *switches;
2953 static int n_switches;
2958 const char *language;
2959 struct compiler *incompiler;
2964 /* Also a vector of input files specified. */
2966 static struct infile *infiles;
2970 /* True if multiple input files are being compiled to a single
2973 static bool combine_inputs;
2975 /* This counts the number of libraries added by lang_specific_driver, so that
2976 we can tell if there were any user supplied any files or libraries. */
2978 static int added_libraries;
2980 /* And a vector of corresponding output files is made up later. */
2982 const char **outfiles;
2984 /* Used to track if none of the -B paths are used. */
2987 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2988 static int *warn_std_ptr = 0;
2990 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2992 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2993 is true if we should look for an executable suffix. DO_OBJ
2994 is true if we should look for an object suffix. */
2997 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
2998 int do_obj ATTRIBUTE_UNUSED)
3000 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3008 len = strlen (name);
3010 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3011 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3012 if (do_obj && len > 2
3013 && name[len - 2] == '.'
3014 && name[len - 1] == 'o')
3016 obstack_grow (&obstack, name, len - 2);
3017 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3018 name = obstack_finish (&obstack);
3022 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3023 /* If there is no filetype, make it the executable suffix (which includes
3024 the "."). But don't get confused if we have just "-o". */
3025 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3028 for (i = len - 1; i >= 0; i--)
3029 if (IS_DIR_SEPARATOR (name[i]))
3032 for (i++; i < len; i++)
3036 obstack_grow (&obstack, name, len);
3037 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3038 strlen (TARGET_EXECUTABLE_SUFFIX));
3039 name = obstack_finish (&obstack);
3046 /* Display the command line switches accepted by gcc. */
3050 printf (_("Usage: %s [options] file...\n"), programname);
3051 fputs (_("Options:\n"), stdout);
3053 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3054 fputs (_(" --help Display this information\n"), stdout);
3055 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3057 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3058 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3059 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3060 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3061 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3062 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3063 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3064 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3065 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3067 -print-multi-lib Display the mapping between command line options and\n\
3068 multiple library search directories\n"), stdout);
3069 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3070 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3071 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3072 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3073 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3074 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3075 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3076 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3077 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3078 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3079 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3080 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3081 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3082 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3083 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3084 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3085 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3086 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3087 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3088 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3089 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3090 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3092 -x <language> Specify the language of the following input files\n\
3093 Permissible languages include: c c++ assembler none\n\
3094 'none' means revert to the default behavior of\n\
3095 guessing the language based on the file's extension\n\
3099 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3100 passed on to the various sub-processes invoked by %s. In order to pass\n\
3101 other options on to these processes the -W<letter> options must be used.\n\
3104 /* The rest of the options are displayed by invocations of the various
3109 add_preprocessor_option (const char *option, int len)
3111 n_preprocessor_options++;
3113 if (! preprocessor_options)
3114 preprocessor_options = xmalloc (n_preprocessor_options * sizeof (char *));
3116 preprocessor_options = xrealloc (preprocessor_options,
3117 n_preprocessor_options * sizeof (char *));
3119 preprocessor_options [n_preprocessor_options - 1] =
3120 save_string (option, len);
3124 add_assembler_option (const char *option, int len)
3126 n_assembler_options++;
3128 if (! assembler_options)
3129 assembler_options = xmalloc (n_assembler_options * sizeof (char *));
3131 assembler_options = xrealloc (assembler_options,
3132 n_assembler_options * sizeof (char *));
3134 assembler_options [n_assembler_options - 1] = save_string (option, len);
3138 add_linker_option (const char *option, int len)
3142 if (! linker_options)
3143 linker_options = xmalloc (n_linker_options * sizeof (char *));
3145 linker_options = xrealloc (linker_options,
3146 n_linker_options * sizeof (char *));
3148 linker_options [n_linker_options - 1] = save_string (option, len);
3151 /* Create the vector `switches' and its contents.
3152 Store its length in `n_switches'. */
3155 process_command (int argc, const char **argv)
3160 const char *spec_lang = 0;
3161 int last_language_n_infiles;
3163 int lang_n_infiles = 0;
3164 #ifdef MODIFY_TARGET_NAME
3165 int is_modify_target_name;
3169 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3173 added_libraries = 0;
3175 /* Figure compiler version from version string. */
3177 compiler_version = temp1 = xstrdup (version_string);
3179 for (; *temp1; ++temp1)
3188 /* If there is a -V or -b option (or both), process it now, before
3189 trying to interpret the rest of the command line. */
3190 if (argc > 1 && argv[1][0] == '-'
3191 && (argv[1][1] == 'V' || argv[1][1] == 'b'))
3193 const char *new_version = DEFAULT_TARGET_VERSION;
3194 const char *new_machine = DEFAULT_TARGET_MACHINE;
3195 const char *progname = argv[0];
3200 while (argc > 1 && argv[1][0] == '-'
3201 && (argv[1][1] == 'V' || argv[1][1] == 'b'))
3203 char opt = argv[1][1];
3205 if (argv[1][2] != '\0')
3218 fatal ("`-%c' option must have argument", opt);
3225 for (baselen = strlen (progname); baselen > 0; baselen--)
3226 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3228 new_argv0 = xmemdup (progname, baselen,
3229 baselen + concat_length (new_version, new_machine,
3230 "-gcc-", NULL) + 1);
3231 strcpy (new_argv0 + baselen, new_machine);
3232 strcat (new_argv0, "-gcc-");
3233 strcat (new_argv0, new_version);
3235 new_argv = xmemdup (argv, (argc + 1) * sizeof (argv[0]),
3236 (argc + 1) * sizeof (argv[0]));
3237 new_argv[0] = new_argv0;
3239 execvp (new_argv0, new_argv);
3240 fatal ("couldn't run `%s': %s", new_argv0, xstrerror (errno));
3243 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3244 see if we can create it from the pathname specified in argv[0]. */
3246 gcc_libexec_prefix = standard_libexec_prefix;
3248 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3249 if (!gcc_exec_prefix)
3251 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3252 standard_exec_prefix);
3253 gcc_libexec_prefix = make_relative_prefix (argv[0],
3254 standard_bindir_prefix,
3255 standard_libexec_prefix);
3256 if (gcc_exec_prefix)
3257 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3260 gcc_libexec_prefix = make_relative_prefix (gcc_exec_prefix,
3261 standard_exec_prefix,
3262 standard_libexec_prefix);
3266 if (gcc_exec_prefix)
3268 int len = strlen (gcc_exec_prefix);
3270 if (len > (int) sizeof ("/lib/gcc/") - 1
3271 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3273 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3274 if (IS_DIR_SEPARATOR (*temp)
3275 && strncmp (temp + 1, "lib", 3) == 0
3276 && IS_DIR_SEPARATOR (temp[4])
3277 && strncmp (temp + 5, "gcc", 3) == 0)
3278 len -= sizeof ("/lib/gcc/") - 1;
3281 set_std_prefix (gcc_exec_prefix, len);
3282 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3283 PREFIX_PRIORITY_LAST, 0, NULL, 0);
3284 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3285 PREFIX_PRIORITY_LAST, 0, NULL, 0);
3288 /* COMPILER_PATH and LIBRARY_PATH have values
3289 that are lists of directory names with colons. */
3291 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3294 const char *startp, *endp;
3295 char *nstore = alloca (strlen (temp) + 3);
3297 startp = endp = temp;
3300 if (*endp == PATH_SEPARATOR || *endp == 0)
3302 strncpy (nstore, startp, endp - startp);
3304 strcpy (nstore, concat (".", dir_separator_str, NULL));
3305 else if (!IS_DIR_SEPARATOR (endp[-1]))
3307 nstore[endp - startp] = DIR_SEPARATOR;
3308 nstore[endp - startp + 1] = 0;
3311 nstore[endp - startp] = 0;
3312 add_prefix (&exec_prefixes, nstore, 0,
3313 PREFIX_PRIORITY_LAST, 0, NULL, 0);
3314 add_prefix (&include_prefixes, nstore, 0,
3315 PREFIX_PRIORITY_LAST, 0, NULL, 0);
3318 endp = startp = endp + 1;
3325 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3326 if (temp && *cross_compile == '0')
3328 const char *startp, *endp;
3329 char *nstore = alloca (strlen (temp) + 3);
3331 startp = endp = temp;
3334 if (*endp == PATH_SEPARATOR || *endp == 0)
3336 strncpy (nstore, startp, endp - startp);
3338 strcpy (nstore, concat (".", dir_separator_str, NULL));
3339 else if (!IS_DIR_SEPARATOR (endp[-1]))
3341 nstore[endp - startp] = DIR_SEPARATOR;
3342 nstore[endp - startp + 1] = 0;
3345 nstore[endp - startp] = 0;
3346 add_prefix (&startfile_prefixes, nstore, NULL,
3347 PREFIX_PRIORITY_LAST, 0, NULL, 1);
3350 endp = startp = endp + 1;
3357 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3358 GET_ENVIRONMENT (temp, "LPATH");
3359 if (temp && *cross_compile == '0')
3361 const char *startp, *endp;
3362 char *nstore = alloca (strlen (temp) + 3);
3364 startp = endp = temp;
3367 if (*endp == PATH_SEPARATOR || *endp == 0)
3369 strncpy (nstore, startp, endp - startp);
3371 strcpy (nstore, concat (".", dir_separator_str, NULL));
3372 else if (!IS_DIR_SEPARATOR (endp[-1]))
3374 nstore[endp - startp] = DIR_SEPARATOR;
3375 nstore[endp - startp + 1] = 0;
3378 nstore[endp - startp] = 0;
3379 add_prefix (&startfile_prefixes, nstore, NULL,
3380 PREFIX_PRIORITY_LAST, 0, NULL, 1);
3383 endp = startp = endp + 1;
3390 /* Convert new-style -- options to old-style. */
3391 translate_options (&argc, (const char *const **) &argv);
3393 /* Do language-specific adjustment/addition of flags. */
3394 lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
3396 /* Scan argv twice. Here, the first time, just count how many switches
3397 there will be in their vector, and how many input files in theirs.
3398 Here we also parse the switches that cc itself uses (e.g. -v). */
3400 for (i = 1; i < argc; i++)
3402 if (! strcmp (argv[i], "-dumpspecs"))
3404 struct spec_list *sl;
3406 for (sl = specs; sl; sl = sl->next)
3407 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3408 if (link_command_spec)
3409 printf ("*link_command:\n%s\n\n", link_command_spec);
3412 else if (! strcmp (argv[i], "-dumpversion"))
3414 printf ("%s\n", spec_version);
3417 else if (! strcmp (argv[i], "-dumpmachine"))
3419 printf ("%s\n", spec_machine);
3422 else if (strcmp (argv[i], "-fversion") == 0)
3424 /* translate_options () has turned --version into -fversion. */
3425 printf (_("%s (GCC) %s\n"), programname, version_string);
3426 printf ("Copyright %s 2004 Free Software Foundation, Inc.\n",
3428 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3429 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3433 else if (strcmp (argv[i], "-fhelp") == 0)
3435 /* translate_options () has turned --help into -fhelp. */
3436 print_help_list = 1;
3438 /* We will be passing a dummy file on to the sub-processes. */
3442 /* CPP driver cannot obtain switch from cc1_options. */
3444 add_preprocessor_option ("--help", 6);
3445 add_assembler_option ("--help", 6);
3446 add_linker_option ("--help", 6);
3448 else if (strcmp (argv[i], "-ftarget-help") == 0)
3450 /* translate_options() has turned --target-help into -ftarget-help. */
3451 target_help_flag = 1;
3453 /* We will be passing a dummy file on to the sub-processes. */
3457 /* CPP driver cannot obtain switch from cc1_options. */
3459 add_preprocessor_option ("--target-help", 13);
3460 add_assembler_option ("--target-help", 13);
3461 add_linker_option ("--target-help", 13);
3463 else if (! strcmp (argv[i], "-pass-exit-codes"))
3465 pass_exit_codes = 1;
3468 else if (! strcmp (argv[i], "-print-search-dirs"))
3469 print_search_dirs = 1;
3470 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3471 print_file_name = "libgcc.a";
3472 else if (! strncmp (argv[i], "-print-file-name=", 17))
3473 print_file_name = argv[i] + 17;
3474 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3475 print_prog_name = argv[i] + 17;
3476 else if (! strcmp (argv[i], "-print-multi-lib"))
3477 print_multi_lib = 1;
3478 else if (! strcmp (argv[i], "-print-multi-directory"))
3479 print_multi_directory = 1;
3480 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3481 print_multi_os_directory = 1;
3482 else if (! strncmp (argv[i], "-Wa,", 4))
3485 /* Pass the rest of this option to the assembler. */
3487 /* Split the argument at commas. */
3489 for (j = 4; argv[i][j]; j++)
3490 if (argv[i][j] == ',')
3492 add_assembler_option (argv[i] + prev, j - prev);
3496 /* Record the part after the last comma. */
3497 add_assembler_option (argv[i] + prev, j - prev);
3499 else if (! strncmp (argv[i], "-Wp,", 4))
3502 /* Pass the rest of this option to the preprocessor. */
3504 /* Split the argument at commas. */
3506 for (j = 4; argv[i][j]; j++)
3507 if (argv[i][j] == ',')
3509 add_preprocessor_option (argv[i] + prev, j - prev);
3513 /* Record the part after the last comma. */
3514 add_preprocessor_option (argv[i] + prev, j - prev);
3516 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3517 /* The +e options to the C++ front-end. */
3519 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3522 /* Split the argument at commas. */
3523 for (j = 3; argv[i][j]; j++)
3524 n_infiles += (argv[i][j] == ',');
3526 else if (strcmp (argv[i], "-Xlinker") == 0)
3529 fatal ("argument to `-Xlinker' is missing");
3534 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3537 fatal ("argument to `-Xpreprocessor' is missing");
3539 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3541 else if (strcmp (argv[i], "-Xassembler") == 0)
3544 fatal ("argument to `-Xassembler' is missing");
3546 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3548 else if (strcmp (argv[i], "-l") == 0)
3551 fatal ("argument to `-l' is missing");
3556 else if (strncmp (argv[i], "-l", 2) == 0)
3558 else if (strcmp (argv[i], "-save-temps") == 0)
3560 save_temps_flag = 1;
3563 else if (strcmp (argv[i], "-combine") == 0)
3568 else if (strcmp (argv[i], "-specs") == 0)
3570 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3572 fatal ("argument to `-specs' is missing");
3574 user->next = (struct user_specs *) 0;
3575 user->filename = argv[i];
3576 if (user_specs_tail)
3577 user_specs_tail->next = user;
3579 user_specs_head = user;
3580 user_specs_tail = user;
3582 else if (strncmp (argv[i], "-specs=", 7) == 0)
3584 struct user_specs *user = xmalloc (sizeof (struct user_specs));
3585 if (strlen (argv[i]) == 7)
3586 fatal ("argument to `-specs=' is missing");
3588 user->next = (struct user_specs *) 0;
3589 user->filename = argv[i] + 7;
3590 if (user_specs_tail)
3591 user_specs_tail->next = user;
3593 user_specs_head = user;
3594 user_specs_tail = user;
3596 else if (strcmp (argv[i], "-time") == 0)
3598 else if (strcmp (argv[i], "-pipe") == 0)
3600 /* -pipe has to go into the switches array as well as
3605 else if (strcmp (argv[i], "-###") == 0)
3607 /* This is similar to -v except that there is no execution
3608 of the commands and the echoed arguments are quoted. It
3609 is intended for use in shell scripts to capture the
3610 driver-generated command line. */
3611 verbose_only_flag++;
3614 else if (argv[i][0] == '-' && argv[i][1] != 0)
3616 const char *p = &argv[i][1];
3623 fatal ("`-%c' must come at the start of the command line", c);
3631 if (p[1] == 0 && i + 1 == argc)
3632 fatal ("argument to `-B' is missing");
3638 len = strlen (value);
3640 /* Catch the case where the user has forgotten to append a
3641 directory separator to the path. Note, they may be using
3642 -B to add an executable name prefix, eg "i386-elf-", in
3643 order to distinguish between multiple installations of
3644 GCC in the same directory. Hence we must check to see
3645 if appending a directory separator actually makes a
3646 valid directory name. */
3647 if (! IS_DIR_SEPARATOR (value [len - 1])
3648 && is_directory (value, "", 0))
3650 char *tmp = xmalloc (len + 2);
3651 strcpy (tmp, value);
3652 tmp[len] = DIR_SEPARATOR;
3657 /* As a kludge, if the arg is "[foo/]stageN/", just
3658 add "[foo/]include" to the include prefix. */
3661 && (IS_DIR_SEPARATOR (value[len - 8]))))
3662 && strncmp (value + len - 7, "stage", 5) == 0
3663 && ISDIGIT (value[len - 2])
3664 && (IS_DIR_SEPARATOR (value[len - 1])))
3667 add_prefix (&include_prefixes, "./", NULL,
3668 PREFIX_PRIORITY_B_OPT, 0, NULL, 0);
3671 char *string = xmalloc (len - 6);
3672 memcpy (string, value, len - 7);
3673 string[len - 7] = 0;
3674 add_prefix (&include_prefixes, string, NULL,
3675 PREFIX_PRIORITY_B_OPT, 0, NULL, 0);
3679 add_prefix (&exec_prefixes, value, NULL,
3680 PREFIX_PRIORITY_B_OPT, 0, &warn_B, 0);
3681 add_prefix (&startfile_prefixes, value, NULL,
3682 PREFIX_PRIORITY_B_OPT, 0, &warn_B, 0);
3683 add_prefix (&include_prefixes, value, NULL,
3684 PREFIX_PRIORITY_B_OPT, 0, NULL, 0);
3689 case 'v': /* Print our subcommands and print versions. */
3691 /* If they do anything other than exactly `-v', don't set
3692 verbose_flag; rather, continue on to give the error. */
3709 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3714 /* Forward scan, just in case -S or -c is specified
3721 if (argv[j][0] == '-')
3723 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3729 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3730 j += skip - (argv[j][2] != 0);
3731 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3738 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3740 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
3742 argv[i] = convert_filename (argv[i], ! have_c, 0);
3749 #ifdef MODIFY_TARGET_NAME
3750 is_modify_target_name = 0;
3752 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3753 if (! strcmp (argv[i], modify_target[j].sw))
3755 char *new_name = xmalloc (strlen (modify_target[j].str)
3756 + strlen (spec_machine));
3759 int made_addition = 0;
3761 is_modify_target_name = 1;
3762 for (p = spec_machine, q = new_name; *p != 0; )
3764 if (modify_target[j].add_del == DELETE
3765 && (! strncmp (q, modify_target[j].str,
3766 strlen (modify_target[j].str))))
3767 p += strlen (modify_target[j].str);
3768 else if (modify_target[j].add_del == ADD
3769 && ! made_addition && *p == '-')
3771 for (r = modify_target[j].str; *r != 0; )
3779 spec_machine = new_name;
3782 if (is_modify_target_name)
3788 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3789 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3790 else if (WORD_SWITCH_TAKES_ARG (p))
3791 i += WORD_SWITCH_TAKES_ARG (p);
3801 if ((save_temps_flag || report_times) && use_pipes)
3803 /* -save-temps overrides -pipe, so that temp files are produced */
3804 if (save_temps_flag)
3805 error ("warning: -pipe ignored because -save-temps specified");
3806 /* -time overrides -pipe because we can't get correct stats when
3807 multiple children are running at once. */
3808 else if (report_times)
3809 error ("warning: -pipe ignored because -time specified");
3814 /* Set up the search paths before we go looking for config files. */
3816 /* These come before the md prefixes so that we will find gcc's subcommands
3817 (such as cpp) rather than those of the host system. */
3818 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3819 as well as trying the machine and the version. */
3821 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
3822 PREFIX_PRIORITY_LAST, 1, warn_std_ptr, 0);
3823 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
3824 PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0);
3825 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3826 PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0);
3827 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3828 PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0);
3829 add_prefix (&exec_prefixes, standard_exec_prefix_2, "BINUTILS",
3830 PREFIX_PRIORITY_LAST, 2, warn_std_ptr, 0);
3833 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3834 PREFIX_PRIORITY_LAST, 1, warn_std_ptr, 0);
3835 add_prefix (&startfile_prefixes, standard_exec_prefix_2, "BINUTILS",
3836 PREFIX_PRIORITY_LAST, 1, warn_std_ptr, 0);
3838 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3839 dir_separator_str, NULL);
3841 /* If tooldir is relative, base it on exec_prefixes. A relative
3842 tooldir lets us move the installed tree as a unit.
3844 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3845 directories, so that we can search both the user specified directory
3846 and the standard place. */
3848 if (!IS_ABSOLUTE_PATH (tooldir_prefix))
3850 if (gcc_exec_prefix)
3852 char *gcc_exec_tooldir_prefix
3853 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3854 spec_version, dir_separator_str, tooldir_prefix, NULL);
3856 add_prefix (&exec_prefixes,
3857 concat (gcc_exec_tooldir_prefix, "bin",
3858 dir_separator_str, NULL),
3859 NULL, PREFIX_PRIORITY_LAST, 0, NULL, 0);
3860 add_prefix (&startfile_prefixes,
3861 concat (gcc_exec_tooldir_prefix, "lib",
3862 dir_separator_str, NULL),
3863 NULL, PREFIX_PRIORITY_LAST, 0, NULL, 1);
3866 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3867 dir_separator_str, spec_version,
3868 dir_separator_str, tooldir_prefix, NULL);
3871 add_prefix (&exec_prefixes,
3872 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3873 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 0);
3874 add_prefix (&startfile_prefixes,
3875 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3876 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 1);
3878 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3879 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3880 then consider it to relocate with the rest of the GCC installation
3881 if GCC_EXEC_PREFIX is set.
3882 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3883 if (target_system_root && gcc_exec_prefix)
3885 char *tmp_prefix = make_relative_prefix (argv[0],
3886 standard_bindir_prefix,
3887 target_system_root);
3888 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
3890 target_system_root = tmp_prefix;
3891 target_system_root_changed = 1;
3896 /* More prefixes are enabled in main, after we read the specs file
3897 and determine whether this is cross-compilation or not. */
3899 /* Then create the space for the vectors and scan again. */
3901 switches = xmalloc ((n_switches + 1) * sizeof (struct switchstr));
3902 infiles = xmalloc ((n_infiles + 1) * sizeof (struct infile));
3905 last_language_n_infiles = -1;
3907 /* This, time, copy the text of each switch and store a pointer
3908 to the copy in the vector of switches.
3909 Store all the infiles in their vector. */
3911 for (i = 1; i < argc; i++)
3913 /* Just skip the switches that were handled by the preceding loop. */
3914 #ifdef MODIFY_TARGET_NAME
3915 is_modify_target_name = 0;
3917 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
3918 if (! strcmp (argv[i], modify_target[j].sw))
3919 is_modify_target_name = 1;
3921 if (is_modify_target_name)
3925 if (! strncmp (argv[i], "-Wa,", 4))
3927 else if (! strncmp (argv[i], "-Wp,", 4))
3929 else if (! strcmp (argv[i], "-pass-exit-codes"))
3931 else if (! strcmp (argv[i], "-print-search-dirs"))
3933 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3935 else if (! strncmp (argv[i], "-print-file-name=", 17))
3937 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3939 else if (! strcmp (argv[i], "-print-multi-lib"))
3941 else if (! strcmp (argv[i], "-print-multi-directory"))
3943 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3945 else if (! strcmp (argv[i], "-ftarget-help"))
3947 else if (! strcmp (argv[i], "-fhelp"))
3949 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3951 /* Compensate for the +e options to the C++ front-end;
3952 they're there simply for cfront call-compatibility. We do
3953 some magic in default_compilers to pass them down properly.
3954 Note we deliberately start at the `+' here, to avoid passing
3955 -e0 or -e1 down into the linker. */
3956 switches[n_switches].part1 = &argv[i][0];
3957 switches[n_switches].args = 0;
3958 switches[n_switches].live_cond = SWITCH_OK;
3959 switches[n_switches].validated = 0;
3962 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3965 /* Split the argument at commas. */
3967 for (j = 4; argv[i][j]; j++)
3968 if (argv[i][j] == ',')
3970 infiles[n_infiles].language = "*";
3971 infiles[n_infiles++].name
3972 = save_string (argv[i] + prev, j - prev);
3975 /* Record the part after the last comma. */
3976 infiles[n_infiles].language = "*";
3977 infiles[n_infiles++].name = argv[i] + prev;
3979 else if (strcmp (argv[i], "-Xlinker") == 0)
3981 infiles[n_infiles].language = "*";
3982 infiles[n_infiles++].name = argv[++i];
3984 else if (strcmp (argv[i], "-Xassembler") == 0)
3986 infiles[n_infiles].language = "*";
3987 infiles[n_infiles++].name = argv[++i];
3989 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3991 infiles[n_infiles].language = "*";
3992 infiles[n_infiles++].name = argv[++i];
3994 else if (strcmp (argv[i], "-l") == 0)
3995 { /* POSIX allows separation of -l and the lib arg;
3996 canonicalize by concatenating -l with its arg */
3997 infiles[n_infiles].language = "*";
3998 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4000 else if (strncmp (argv[i], "-l", 2) == 0)
4002 infiles[n_infiles].language = "*";
4003 infiles[n_infiles++].name = argv[i];
4005 else if (strcmp (argv[i], "-specs") == 0)
4007 else if (strncmp (argv[i], "-specs=", 7) == 0)
4009 else if (strcmp (argv[i], "-time") == 0)
4011 else if (strcmp (argv[i], "-###") == 0)
4013 else if (argv[i][0] == '-' && argv[i][1] != 0)
4015 const char *p = &argv[i][1];
4020 if (p[1] == 0 && i + 1 == argc)
4021 fatal ("argument to `-x' is missing");
4023 spec_lang = argv[++i];
4026 if (! strcmp (spec_lang, "none"))
4027 /* Suppress the warning if -xnone comes after the last input
4028 file, because alternate command interfaces like g++ might
4029 find it useful to place -xnone after each input file. */
4032 last_language_n_infiles = n_infiles;
4035 switches[n_switches].part1 = p;
4036 /* Deal with option arguments in separate argv elements. */
4037 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4038 || WORD_SWITCH_TAKES_ARG (p))
4041 int n_args = WORD_SWITCH_TAKES_ARG (p);
4045 /* Count only the option arguments in separate argv elements. */
4046 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4048 if (i + n_args >= argc)
4049 fatal ("argument to `-%s' is missing", p);
4050 switches[n_switches].args
4051 = xmalloc ((n_args + 1) * sizeof(const char *));
4053 switches[n_switches].args[j++] = argv[++i];
4054 /* Null-terminate the vector. */
4055 switches[n_switches].args[j] = 0;
4057 else if (strchr (switches_need_spaces, c))
4059 /* On some systems, ld cannot handle some options without
4060 a space. So split the option from its argument. */
4061 char *part1 = xmalloc (2);
4065 switches[n_switches].part1 = part1;
4066 switches[n_switches].args = xmalloc (2 * sizeof (const char *));
4067 switches[n_switches].args[0] = xstrdup (p+1);
4068 switches[n_switches].args[1] = 0;
4071 switches[n_switches].args = 0;
4073 switches[n_switches].live_cond = SWITCH_OK;
4074 switches[n_switches].validated = 0;
4075 switches[n_switches].ordering = 0;
4076 /* These are always valid, since gcc.c itself understands them. */
4077 if (!strcmp (p, "save-temps")
4078 || !strcmp (p, "static-libgcc")
4079 || !strcmp (p, "shared-libgcc")
4080 || !strcmp (p, "pipe"))
4081 switches[n_switches].validated = 1;