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, 2005, 2006 Free Software Foundation,
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 This paragraph is here to try to keep Sun CC from dying.
24 The number of chars here seems crucial!!!! */
26 /* This program is the user interface to the C compiler and possibly to
27 other compilers. It is used because compilation is a complicated procedure
28 which involves running several programs and passing temporary files between
29 them, forwarding the users switches to those programs selectively,
30 and deleting the temporary files at the end.
32 CC recognizes how to compile each input file by suffixes in the file names.
33 Once it knows which kind of compilation to perform, the procedure for
34 compilation is specified by a string called a "spec". */
36 /* A Short Introduction to Adding a Command-Line Option.
38 Before adding a command-line option, consider if it is really
39 necessary. Each additional command-line option adds complexity and
40 is difficult to remove in subsequent versions.
42 In the following, consider adding the command-line argument
45 1. Each command-line option is specified in the specs file. The
46 notation is described below in the comment entitled "The Specs
49 2. In this file, add an entry to "option_map" equating the long
50 `--' argument version and any shorter, single letter version. Read
51 the comments in the declaration of "struct option_map" for an
52 explanation. Do not omit the first `-'.
54 3. Look in the "specs" file to determine which program or option
55 list should be given the argument, e.g., "cc1_options". Add the
56 appropriate syntax for the shorter option version to the
57 corresponding "const char *" entry in this file. Omit the first
58 `-' from the option. For example, use `-bar', rather than `--bar'.
60 4. If the argument takes an argument, e.g., `--baz argument1',
61 modify either DEFAULT_SWITCH_TAKES_ARG or
62 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
65 5. Document the option in this file's display_help(). If the
66 option is passed to a subprogram, modify its corresponding
67 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
70 6. Compile and test. Make sure that your new specs file is being
71 read. For example, use a debugger to investigate the value of
72 "specs_file" in main(). */
76 #include "coretypes.h"
77 #include "multilib.h" /* before tm.h */
80 #if ! defined( SIGCHLD ) && defined( SIGCLD )
81 # define SIGCHLD SIGCLD
91 /* By default there is no special suffix for target executables. */
92 /* FIXME: when autoconf is fixed, remove the host check - dj */
93 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
94 #define HAVE_TARGET_EXECUTABLE_SUFFIX
97 /* By default there is no special suffix for host executables. */
98 #ifdef HOST_EXECUTABLE_SUFFIX
99 #define HAVE_HOST_EXECUTABLE_SUFFIX
101 #define HOST_EXECUTABLE_SUFFIX ""
104 /* By default, the suffix for target object files is ".o". */
105 #ifdef TARGET_OBJECT_SUFFIX
106 #define HAVE_TARGET_OBJECT_SUFFIX
108 #define TARGET_OBJECT_SUFFIX ".o"
111 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
113 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
114 #ifndef LIBRARY_PATH_ENV
115 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
119 #define kill(p,s) raise(s)
122 /* If a stage of compilation returns an exit status >= 1,
123 compilation of that file ceases. */
125 #define MIN_FATAL_STATUS 1
127 /* Flag set by cppspec.c to 1. */
130 /* Flag saying to pass the greatest exit code returned by a sub-process
131 to the calling program. */
132 static int pass_exit_codes
;
134 /* Definition of string containing the arguments given to configure. */
135 #include "configargs.h"
137 /* Flag saying to print the directories gcc will search through looking for
138 programs, libraries, etc. */
140 static int print_search_dirs
;
142 /* Flag saying to print the full filename of this file
143 as found through our usual search mechanism. */
145 static const char *print_file_name
= NULL
;
147 /* As print_file_name, but search for executable file. */
149 static const char *print_prog_name
= NULL
;
151 /* Flag saying to print the relative path we'd use to
152 find libgcc.a given the current compiler flags. */
154 static int print_multi_directory
;
156 /* Flag saying to print the relative path we'd use to
157 find OS libraries given the current compiler flags. */
159 static int print_multi_os_directory
;
161 /* Flag saying to print the list of subdirectories and
162 compiler flags used to select them in a standard form. */
164 static int print_multi_lib
;
166 /* Flag saying to print the command line options understood by gcc and its
169 static int print_help_list
;
171 /* Flag indicating whether we should print the command and arguments */
173 static int verbose_flag
;
175 /* Flag indicating whether we should ONLY print the command and
176 arguments (like verbose_flag) without executing the command.
177 Displayed arguments are quoted so that the generated command
178 line is suitable for execution. This is intended for use in
179 shell scripts to capture the driver-generated command line. */
180 static int verbose_only_flag
;
182 /* Flag indicating to print target specific command line options. */
184 static int target_help_flag
;
186 /* Flag indicating whether we should report subprocess execution times
187 (if this is supported by the system - see pexecute.c). */
189 static int report_times
;
191 /* Nonzero means place this string before uses of /, so that include
192 and library files can be found in an alternate location. */
194 #ifdef TARGET_SYSTEM_ROOT
195 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
197 static const char *target_system_root
= 0;
200 /* Nonzero means pass the updated target_system_root to the compiler. */
202 static int target_system_root_changed
;
204 /* Nonzero means append this string to target_system_root. */
206 static const char *target_sysroot_suffix
= 0;
208 /* Nonzero means append this string to target_system_root for headers. */
210 static const char *target_sysroot_hdrs_suffix
= 0;
212 /* Nonzero means write "temp" files in source directory
213 and use the source file's name in them, and don't delete them. */
215 static int save_temps_flag
;
217 /* Nonzero means pass multiple source files to the compiler at one time. */
219 static int combine_flag
= 0;
221 /* Nonzero means use pipes to communicate between subprocesses.
222 Overridden by either of the above two flags. */
224 static int use_pipes
;
226 /* The compiler version. */
228 static const char *compiler_version
;
230 /* The target version specified with -V */
232 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
234 /* The target machine specified with -b. */
236 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
238 /* Nonzero if cross-compiling.
239 When -b is used, the value comes from the `specs' file. */
242 static const char *cross_compile
= "1";
244 static const char *cross_compile
= "0";
247 #ifdef MODIFY_TARGET_NAME
249 /* Information on how to alter the target name based on a command-line
250 switch. The only case we support now is simply appending or deleting a
251 string to or from the end of the first part of the configuration name. */
253 static const struct modify_target
255 const char *const sw
;
256 const enum add_del
{ADD
, DELETE
} add_del
;
257 const char *const str
;
259 modify_target
[] = MODIFY_TARGET_NAME
;
262 /* The number of errors that have occurred; the link phase will not be
263 run if this is nonzero. */
264 static int error_count
= 0;
266 /* Greatest exit code of sub-processes that has been encountered up to
268 static int greatest_status
= 1;
270 /* This is the obstack which we use to allocate many strings. */
272 static struct obstack obstack
;
274 /* This is the obstack to build an environment variable to pass to
275 collect2 that describes all of the relevant switches of what to
276 pass the compiler in building the list of pointers to constructors
279 static struct obstack collect_obstack
;
281 /* Forward declaration for prototypes. */
285 static void init_spec (void);
286 static void store_arg (const char *, int, int);
287 static char *load_specs (const char *);
288 static void read_specs (const char *, int);
289 static void set_spec (const char *, const char *);
290 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
291 static char *build_search_list (const struct path_prefix
*, const char *,
293 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
295 static int access_check (const char *, int);
296 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
297 static void add_prefix (struct path_prefix
*, const char *, const char *,
299 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
300 const char *, int, int, int);
301 static void translate_options (int *, const char *const **);
302 static char *skip_whitespace (char *);
303 static void delete_if_ordinary (const char *);
304 static void delete_temp_files (void);
305 static void delete_failure_queue (void);
306 static void clear_failure_queue (void);
307 static int check_live_switch (int, int);
308 static const char *handle_braces (const char *);
309 static inline bool input_suffix_matches (const char *, const char *);
310 static inline bool switch_matches (const char *, const char *, int);
311 static inline void mark_matching_switches (const char *, const char *, int);
312 static inline void process_marked_switches (void);
313 static const char *process_brace_body (const char *, const char *, const char *, int, int);
314 static const struct spec_function
*lookup_spec_function (const char *);
315 static const char *eval_spec_function (const char *, const char *);
316 static const char *handle_spec_function (const char *);
317 static char *save_string (const char *, int);
318 static void set_collect_gcc_options (void);
319 static int do_spec_1 (const char *, int, const char *);
320 static int do_spec_2 (const char *);
321 static void do_option_spec (const char *, const char *);
322 static void do_self_spec (const char *);
323 static const char *find_file (const char *);
324 static int is_directory (const char *, bool);
325 static const char *validate_switches (const char *);
326 static void validate_all_switches (void);
327 static inline void validate_switches_from_spec (const char *);
328 static void give_switch (int, int);
329 static int used_arg (const char *, int);
330 static int default_arg (const char *, int);
331 static void set_multilib_dir (void);
332 static void print_multilib_info (void);
333 static void perror_with_name (const char *);
334 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
335 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
336 static void display_help (void);
337 static void add_preprocessor_option (const char *, int);
338 static void add_assembler_option (const char *, int);
339 static void add_linker_option (const char *, int);
340 static void process_command (int, const char **);
341 static int execute (void);
342 static void alloc_args (void);
343 static void clear_args (void);
344 static void fatal_error (int);
345 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
346 static void init_gcc_specs (struct obstack
*, const char *, const char *,
349 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
350 static const char *convert_filename (const char *, int, int);
353 static const char *if_exists_spec_function (int, const char **);
354 static const char *if_exists_else_spec_function (int, const char **);
355 static const char *replace_outfile_spec_function (int, const char **);
356 static const char *version_compare_spec_function (int, const char **);
357 static const char *include_spec_function (int, const char **);
359 /* The Specs Language
361 Specs are strings containing lines, each of which (if not blank)
362 is made up of a program name, and arguments separated by spaces.
363 The program name must be exact and start from root, since no path
364 is searched and it is unreliable to depend on the current working directory.
365 Redirection of input or output is not supported; the subprograms must
366 accept filenames saying what files to read and write.
368 In addition, the specs can contain %-sequences to substitute variable text
369 or for conditional text. Here is a table of all defined %-sequences.
370 Note that spaces are not generated automatically around the results of
371 expanding these sequences; therefore, you can concatenate them together
372 or with constant text in a single argument.
374 %% substitute one % into the program name or argument.
375 %i substitute the name of the input file being processed.
376 %b substitute the basename of the input file being processed.
377 This is the substring up to (and not including) the last period
378 and not including the directory.
379 %B same as %b, but include the file suffix (text after the last period).
381 substitute a file name that has suffix SUFFIX and is chosen
382 once per compilation, and mark the argument a la %d. To reduce
383 exposure to denial-of-service attacks, the file name is now
384 chosen in a way that is hard to predict even when previously
385 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
386 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
387 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
388 had been pre-processed. Previously, %g was simply substituted
389 with a file name chosen once per compilation, without regard
390 to any appended suffix (which was therefore treated just like
391 ordinary text), making such attacks more likely to succeed.
393 like %g, but if -pipe is in effect, expands simply to "-".
395 like %g, but if -pipe is in effect, expands to nothing. (We have both
396 %| and %m to accommodate differences between system assemblers; see
397 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
399 like %g, but generates a new temporary file name even if %uSUFFIX
402 substitutes the last file name generated with %uSUFFIX, generating a
403 new one if there is no such last file name. In the absence of any
404 %uSUFFIX, this is just like %gSUFFIX, except they don't share
405 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
406 would involve the generation of two distinct file names, one
407 for each `%g.s' and another for each `%U.s'. Previously, %U was
408 simply substituted with a file name chosen for the previous %u,
409 without regard to any appended suffix.
411 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
412 writable, and if save-temps is off; otherwise, substitute the name
413 of a temporary file, just like %u. This temporary file is not
414 meant for communication between processes, but rather as a junk
417 substitutes .SUFFIX for the suffixes of a matched switch's args when
418 it is subsequently output with %*. SUFFIX is terminated by the next
420 %d marks the argument containing or following the %d as a
421 temporary file name, so that that file will be deleted if CC exits
422 successfully. Unlike %g, this contributes no text to the argument.
423 %w marks the argument containing or following the %w as the
424 "output file" of this compilation. This puts the argument
425 into the sequence of arguments that %o will substitute later.
426 %V indicates that this compilation produces no "output file".
428 like %{...} but mark last argument supplied within
429 as a file to be deleted on failure.
430 %o substitutes the names of all the output files, with spaces
431 automatically placed around them. You should write spaces
432 around the %o as well or the results are undefined.
433 %o is for use in the specs for running the linker.
434 Input files whose names have no recognized suffix are not compiled
435 at all, but they are included among the output files, so they will
437 %O substitutes the suffix for object files. Note that this is
438 handled specially when it immediately follows %g, %u, or %U
439 (with or without a suffix argument) because of the need for
440 those to form complete file names. The handling is such that
441 %O is treated exactly as if it had already been substituted,
442 except that %g, %u, and %U do not currently support additional
443 SUFFIX characters following %O as they would following, for
445 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
446 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
447 and -B options) and -imultilib as necessary.
448 %s current argument is the name of a library or startup file of some sort.
449 Search for that file in a standard list of directories
450 and substitute the full name found.
451 %eSTR Print STR as an error message. STR is terminated by a newline.
452 Use this when inconsistent options are detected.
453 %nSTR Print STR as a notice. STR is terminated by a newline.
454 %x{OPTION} Accumulate an option for %X.
455 %X Output the accumulated linker options specified by compilations.
456 %Y Output the accumulated assembler options specified by compilations.
457 %Z Output the accumulated preprocessor options specified by compilations.
458 %a process ASM_SPEC as a spec.
459 This allows config.h to specify part of the spec for running as.
460 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
461 used here. This can be used to run a post-processor after the
462 assembler has done its job.
463 %D Dump out a -L option for each directory in startfile_prefixes.
464 If multilib_dir is set, extra entries are generated with it affixed.
465 %l process LINK_SPEC as a spec.
466 %L process LIB_SPEC as a spec.
467 %G process LIBGCC_SPEC as a spec.
468 %R Output the concatenation of target_system_root and
469 target_sysroot_suffix.
470 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
471 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
472 %C process CPP_SPEC as a spec.
473 %1 process CC1_SPEC as a spec.
474 %2 process CC1PLUS_SPEC as a spec.
475 %* substitute the variable part of a matched option. (See below.)
476 Note that each comma in the substituted string is replaced by
478 %<S remove all occurrences of -S from the command line.
479 Note - this command is position dependent. % commands in the
480 spec string before this one will see -S, % commands in the
481 spec string after this one will not.
482 %<S* remove all occurrences of all switches beginning with -S from the
485 Call the named function FUNCTION, passing it ARGS. ARGS is
486 first processed as a nested spec string, then split into an
487 argument vector in the usual fashion. The function returns
488 a string which is processed as if it had appeared literally
489 as part of the current spec.
490 %{S} substitutes the -S switch, if that switch was given to CC.
491 If that switch was not specified, this substitutes nothing.
492 Here S is a metasyntactic variable.
493 %{S*} substitutes all the switches specified to CC whose names start
494 with -S. This is used for -o, -I, etc; switches that take
495 arguments. CC considers `-o foo' as being one switch whose
496 name starts with `o'. %{o*} would substitute this text,
497 including the space; thus, two arguments would be generated.
498 %{S*&T*} likewise, but preserve order of S and T options (the order
499 of S and T in the spec is not significant). Can be any number
500 of ampersand-separated variables; for each the wild card is
501 optional. Useful for CPP as %{D*&U*&A*}.
503 %{S:X} substitutes X, if the -S switch was given to CC.
504 %{!S:X} substitutes X, if the -S switch was NOT given to CC.
505 %{S*:X} substitutes X if one or more switches whose names start
506 with -S was given to CC. Normally X is substituted only
507 once, no matter how many such switches appeared. However,
508 if %* appears somewhere in X, then X will be substituted
509 once for each matching switch, with the %* replaced by the
510 part of that switch that matched the '*'.
511 %{.S:X} substitutes X, if processing a file with suffix S.
512 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
514 %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
515 combined with !, ., and * as above binding stronger than the OR.
516 If %* appears in X, all of the alternatives must be starred, and
517 only the first matching alternative is substituted.
518 %{S:X; if S was given to CC, substitutes X;
519 T:Y; else if T was given to CC, substitutes Y;
520 :D} else substitutes D. There can be as many clauses as you need.
521 This may be combined with ., !, |, and * as above.
523 %(Spec) processes a specification defined in a specs file as *Spec:
524 %[Spec] as above, but put __ around -D arguments
526 The conditional text X in a %{S:X} or similar construct may contain
527 other nested % constructs or spaces, or even newlines. They are
528 processed as usual, as described above. Trailing white space in X is
529 ignored. White space may also appear anywhere on the left side of the
530 colon in these constructs, except between . or * and the corresponding
533 The -O, -f, -m, and -W switches are handled specifically in these
534 constructs. If another value of -O or the negated form of a -f, -m, or
535 -W switch is found later in the command line, the earlier switch
536 value is ignored, except with {S*} where S is just one letter; this
537 passes all matching options.
539 The character | at the beginning of the predicate text is used to indicate
540 that a command should be piped to the following command, but only if -pipe
543 Note that it is built into CC which switches take arguments and which
544 do not. You might think it would be useful to generalize this to
545 allow each compiler's spec to say which switches take arguments. But
546 this cannot be done in a consistent fashion. CC cannot even decide
547 which input files have been specified without knowing which switches
548 take arguments, and it must know which input files to compile in order
549 to tell which compilers to run.
551 CC also knows implicitly that arguments starting in `-l' are to be
552 treated as compiler output files, and passed to the linker in their
553 proper position among the other output files. */
555 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
557 /* config.h can define ASM_SPEC to provide extra args to the assembler
558 or extra switch-translations. */
563 /* config.h can define ASM_FINAL_SPEC to run a post processor after
564 the assembler has run. */
565 #ifndef ASM_FINAL_SPEC
566 #define ASM_FINAL_SPEC ""
569 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
570 or extra switch-translations. */
575 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
576 or extra switch-translations. */
581 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
582 or extra switch-translations. */
584 #define CC1PLUS_SPEC ""
587 /* config.h can define LINK_SPEC to provide extra args to the linker
588 or extra switch-translations. */
593 /* config.h can define LIB_SPEC to override the default libraries. */
595 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
600 /* XXX: valid only for GNU ld */
601 /* XXX: should exactly match hooks provided by libmudflap.a */
602 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
603 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
604 --wrap=mmap --wrap=munmap --wrap=alloca\
605 } %{fmudflapth: --wrap=pthread_create\
606 }} %{fmudflap|fmudflapth: --wrap=main}"
609 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
612 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
615 #if defined(REAL_LIBGCC_SPEC)
616 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
617 #elif defined(LINK_LIBGCC_SPECIAL_1)
618 /* Have gcc do the search for libgcc.a. */
619 #define LIBGCC_SPEC "libgcc.a%s"
621 #define LIBGCC_SPEC "-lgcc"
625 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
626 #ifndef STARTFILE_SPEC
627 #define STARTFILE_SPEC \
628 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
631 /* config.h can define SWITCHES_NEED_SPACES to control which options
632 require spaces between the option and the argument. */
633 #ifndef SWITCHES_NEED_SPACES
634 #define SWITCHES_NEED_SPACES ""
637 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
639 #define ENDFILE_SPEC ""
643 #define LINKER_NAME "collect2"
646 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
648 #ifndef ASM_DEBUG_SPEC
649 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
650 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
651 # define ASM_DEBUG_SPEC \
652 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
653 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
654 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
656 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
657 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
659 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
660 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
664 #ifndef ASM_DEBUG_SPEC
665 # define ASM_DEBUG_SPEC ""
668 /* Here is the spec for running the linker, after compiling all files. */
670 /* This is overridable by the target in case they need to specify the
671 -lgcc and -lc order specially, yet not require them to override all
672 of LINK_COMMAND_SPEC. */
673 #ifndef LINK_GCC_C_SEQUENCE_SPEC
674 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
677 #ifndef LINK_SSP_SPEC
678 #ifdef TARGET_LIBC_PROVIDES_SSP
679 #define LINK_SSP_SPEC "%{fstack-protector:}"
681 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
685 #ifndef LINK_PIE_SPEC
687 #define LINK_PIE_SPEC "%{pie:-pie} "
689 #define LINK_PIE_SPEC "%{pie:} "
693 /* -u* was put back because both BSD and SysV seem to support it. */
694 /* %{static:} simply prevents an error message if the target machine
695 doesn't handle -static. */
696 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
697 scripts which exist in user specified directories, or in standard
699 #ifndef LINK_COMMAND_SPEC
700 #define LINK_COMMAND_SPEC "\
701 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
702 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
703 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
704 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
705 %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
706 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
707 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
708 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
711 #ifndef LINK_LIBGCC_SPEC
712 /* Generate -L options for startfile prefix list. */
713 # define LINK_LIBGCC_SPEC "%D"
716 #ifndef STARTFILE_PREFIX_SPEC
717 # define STARTFILE_PREFIX_SPEC ""
721 # define SYSROOT_SPEC "--sysroot=%R"
724 #ifndef SYSROOT_SUFFIX_SPEC
725 # define SYSROOT_SUFFIX_SPEC ""
728 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
729 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
732 static const char *asm_debug
;
733 static const char *cpp_spec
= CPP_SPEC
;
734 static const char *cc1_spec
= CC1_SPEC
;
735 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
736 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
737 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
738 static const char *asm_spec
= ASM_SPEC
;
739 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
740 static const char *link_spec
= LINK_SPEC
;
741 static const char *lib_spec
= LIB_SPEC
;
742 static const char *mfwrap_spec
= MFWRAP_SPEC
;
743 static const char *mflib_spec
= MFLIB_SPEC
;
744 static const char *link_gomp_spec
= "";
745 static const char *libgcc_spec
= LIBGCC_SPEC
;
746 static const char *endfile_spec
= ENDFILE_SPEC
;
747 static const char *startfile_spec
= STARTFILE_SPEC
;
748 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
749 static const char *linker_name_spec
= LINKER_NAME
;
750 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
751 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
752 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
753 static const char *sysroot_spec
= SYSROOT_SPEC
;
754 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
755 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
757 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
758 There should be no need to override these in target dependent files,
759 but we need to copy them to the specs file so that newer versions
760 of the GCC driver can correctly drive older tool chains with the
761 appropriate -B options. */
763 /* When cpplib handles traditional preprocessing, get rid of this, and
764 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
765 that we default the front end language better. */
766 static const char *trad_capable_cpp
=
767 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
769 /* We don't wrap .d files in %W{} since a missing .d file, and
770 therefore no dependency entry, confuses make into thinking a .o
771 file that happens to exist is up-to-date. */
772 static const char *cpp_unique_options
=
773 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
774 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
775 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
776 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
777 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
778 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
779 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
780 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
781 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
784 /* This contains cpp options which are common with cc1_options and are passed
785 only when preprocessing only to avoid duplication. We pass the cc1 spec
786 options to the preprocessor so that it the cc1 spec may manipulate
787 options used to set target flags. Those special target flags settings may
788 in turn cause preprocessor symbols to be defined specially. */
789 static const char *cpp_options
=
790 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
791 %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*}\
792 %{undef} %{save-temps:-fpch-preprocess}";
794 /* This contains cpp options which are not passed when the preprocessor
795 output will be used by another program. */
796 static const char *cpp_debug_options
= "%{d*}";
798 /* NB: This is shared amongst all front-ends. */
799 static const char *cc1_options
=
800 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
801 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
802 %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
803 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
804 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
805 %{Qn:-fno-ident} %{--help:--help}\
806 %{--target-help:--target-help}\
807 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
808 %{fsyntax-only:-o %j} %{-param*}\
809 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
810 %{coverage:-fprofile-arcs -ftest-coverage}";
812 static const char *asm_options
=
813 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
815 static const char *invoke_as
=
816 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
817 "%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
819 "%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
822 /* Some compilers have limits on line lengths, and the multilib_select
823 and/or multilib_matches strings can be very long, so we build them at
825 static struct obstack multilib_obstack
;
826 static const char *multilib_select
;
827 static const char *multilib_matches
;
828 static const char *multilib_defaults
;
829 static const char *multilib_exclusions
;
831 /* Check whether a particular argument is a default argument. */
833 #ifndef MULTILIB_DEFAULTS
834 #define MULTILIB_DEFAULTS { "" }
837 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
839 #ifndef DRIVER_SELF_SPECS
840 #define DRIVER_SELF_SPECS ""
843 /* Adding -fopenmp should imply pthreads. This is particularly important
844 for targets that use different start files and suchlike. */
845 #ifndef GOMP_SELF_SPECS
846 #define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
849 static const char *const driver_self_specs
[] = {
850 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
853 #ifndef OPTION_DEFAULT_SPECS
854 #define OPTION_DEFAULT_SPECS { "", "" }
863 static const struct default_spec
864 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
868 struct user_specs
*next
;
869 const char *filename
;
872 static struct user_specs
*user_specs_head
, *user_specs_tail
;
874 #ifndef SWITCH_TAKES_ARG
875 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
878 #ifndef WORD_SWITCH_TAKES_ARG
879 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
882 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
883 /* This defines which switches stop a full compilation. */
884 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
885 ((CHAR) == 'c' || (CHAR) == 'S')
887 #ifndef SWITCH_CURTAILS_COMPILATION
888 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
889 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
893 /* Record the mapping from file suffixes for compilation specs. */
897 const char *suffix
; /* Use this compiler for input files
898 whose names end in this suffix. */
900 const char *spec
; /* To use this compiler, run this spec. */
902 const char *cpp_spec
; /* If non-NULL, substitute this spec
903 for `%C', rather than the usual
905 const int combinable
; /* If nonzero, compiler can deal with
906 multiple source files at once (IMA). */
907 const int needs_preprocessing
; /* If nonzero, source files need to
908 be run through a preprocessor. */
911 /* Pointer to a vector of `struct compiler' that gives the spec for
912 compiling a file, based on its suffix.
913 A file that does not end in any of these suffixes will be passed
914 unchanged to the loader and nothing else will be done to it.
916 An entry containing two 0s is used to terminate the vector.
918 If multiple entries match a file, the last matching one is used. */
920 static struct compiler
*compilers
;
922 /* Number of entries in `compilers', not counting the null terminator. */
924 static int n_compilers
;
926 /* The default list of file name suffixes and their compilation specs. */
928 static const struct compiler default_compilers
[] =
930 /* Add lists of suffixes of known languages here. If those languages
931 were not present when we built the driver, we will hit these copies
932 and be given a more meaningful error than "file not used since
933 linking is not done". */
934 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
935 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
936 {".mii", "#Objective-C++", 0, 0, 0},
937 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
938 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
939 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
940 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
941 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
942 {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
943 {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
944 {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
945 {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
946 {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
947 {".r", "#Ratfor", 0, 0, 0},
948 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
949 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
950 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
951 /* Next come the entries for C. */
952 {".c", "@c", 0, 1, 1},
954 /* cc1 has an integrated ISO C preprocessor. We should invoke the
955 external preprocessor if -save-temps is given. */
956 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
958 %{traditional|ftraditional:\
959 %eGNU C no longer supports -traditional without -E}\
961 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
962 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
963 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
965 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
966 cc1 %(cpp_unique_options) %(cc1_options)}}}\
967 %{!fsyntax-only:%(invoke_as)}} \
969 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
970 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
971 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
972 cc1 %(cpp_unique_options) %(cc1_options)}}\
973 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
975 "%{!E:%e-E or -x required when input is from standard input}\
976 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
977 {".h", "@c-header", 0, 0, 0},
979 /* cc1 has an integrated ISO C preprocessor. We should invoke the
980 external preprocessor if -save-temps is given. */
981 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
983 %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
984 %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
985 cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
987 -o %g.s %{!o*:--output-pch=%i.gch}\
988 %W{o*:--output-pch=%*}%V}\
989 %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
990 cc1 %(cpp_unique_options) %(cc1_options)\
991 -o %g.s %{!o*:--output-pch=%i.gch}\
992 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
993 {".i", "@cpp-output", 0, 1, 0},
995 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
996 {".s", "@assembler", 0, 1, 0},
998 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
999 {".S", "@assembler-with-cpp", 0, 1, 0},
1000 {"@assembler-with-cpp",
1001 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1002 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1003 %{E|M|MM:%(cpp_debug_options)}\
1004 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1005 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1007 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
1008 %{E|M|MM:%(cpp_debug_options)}\
1009 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1010 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1015 /* Mark end of table. */
1019 /* Number of elements in default_compilers, not counting the terminator. */
1021 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1023 /* A vector of options to give to the linker.
1024 These options are accumulated by %x,
1025 and substituted into the linker command with %X. */
1026 static int n_linker_options
;
1027 static char **linker_options
;
1029 /* A vector of options to give to the assembler.
1030 These options are accumulated by -Wa,
1031 and substituted into the assembler command with %Y. */
1032 static int n_assembler_options
;
1033 static char **assembler_options
;
1035 /* A vector of options to give to the preprocessor.
1036 These options are accumulated by -Wp,
1037 and substituted into the preprocessor command with %Z. */
1038 static int n_preprocessor_options
;
1039 static char **preprocessor_options
;
1041 /* Define how to map long options into short ones. */
1043 /* This structure describes one mapping. */
1046 /* The long option's name. */
1047 const char *const name
;
1048 /* The equivalent short option. */
1049 const char *const equivalent
;
1050 /* Argument info. A string of flag chars; NULL equals no options.
1051 a => argument required.
1052 o => argument optional.
1053 j => join argument to equivalent, making one word.
1054 * => require other text after NAME as an argument. */
1055 const char *const arg_info
;
1058 /* This is the table of mappings. Mappings are tried sequentially
1059 for each option encountered; the first one that matches, wins. */
1061 static const struct option_map option_map
[] =
1063 {"--all-warnings", "-Wall", 0},
1064 {"--ansi", "-ansi", 0},
1065 {"--assemble", "-S", 0},
1066 {"--assert", "-A", "a"},
1067 {"--classpath", "-fclasspath=", "aj"},
1068 {"--bootclasspath", "-fbootclasspath=", "aj"},
1069 {"--CLASSPATH", "-fclasspath=", "aj"},
1070 {"--combine", "-combine", 0},
1071 {"--comments", "-C", 0},
1072 {"--comments-in-macros", "-CC", 0},
1073 {"--compile", "-c", 0},
1074 {"--debug", "-g", "oj"},
1075 {"--define-macro", "-D", "aj"},
1076 {"--dependencies", "-M", 0},
1077 {"--dump", "-d", "a"},
1078 {"--dumpbase", "-dumpbase", "a"},
1079 {"--encoding", "-fencoding=", "aj"},
1080 {"--entry", "-e", 0},
1081 {"--extra-warnings", "-W", 0},
1082 {"--extdirs", "-fextdirs=", "aj"},
1083 {"--for-assembler", "-Wa", "a"},
1084 {"--for-linker", "-Xlinker", "a"},
1085 {"--force-link", "-u", "a"},
1086 {"--coverage", "-coverage", 0},
1087 {"--imacros", "-imacros", "a"},
1088 {"--include", "-include", "a"},
1089 {"--include-barrier", "-I-", 0},
1090 {"--include-directory", "-I", "aj"},
1091 {"--include-directory-after", "-idirafter", "a"},
1092 {"--include-prefix", "-iprefix", "a"},
1093 {"--include-with-prefix", "-iwithprefix", "a"},
1094 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1095 {"--include-with-prefix-after", "-iwithprefix", "a"},
1096 {"--language", "-x", "a"},
1097 {"--library-directory", "-L", "a"},
1098 {"--machine", "-m", "aj"},
1099 {"--machine-", "-m", "*j"},
1100 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1101 {"--no-line-commands", "-P", 0},
1102 {"--no-precompiled-includes", "-noprecomp", 0},
1103 {"--no-standard-includes", "-nostdinc", 0},
1104 {"--no-standard-libraries", "-nostdlib", 0},
1105 {"--no-warnings", "-w", 0},
1106 {"--optimize", "-O", "oj"},
1107 {"--output", "-o", "a"},
1108 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1109 {"--param", "--param", "a"},
1110 {"--pass-exit-codes", "-pass-exit-codes", 0},
1111 {"--pedantic", "-pedantic", 0},
1112 {"--pedantic-errors", "-pedantic-errors", 0},
1113 {"--pie", "-pie", 0},
1114 {"--pipe", "-pipe", 0},
1115 {"--prefix", "-B", "a"},
1116 {"--preprocess", "-E", 0},
1117 {"--print-search-dirs", "-print-search-dirs", 0},
1118 {"--print-file-name", "-print-file-name=", "aj"},
1119 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1120 {"--print-missing-file-dependencies", "-MG", 0},
1121 {"--print-multi-lib", "-print-multi-lib", 0},
1122 {"--print-multi-directory", "-print-multi-directory", 0},
1123 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1124 {"--print-prog-name", "-print-prog-name=", "aj"},
1125 {"--profile", "-p", 0},
1126 {"--profile-blocks", "-a", 0},
1127 {"--quiet", "-q", 0},
1128 {"--resource", "-fcompile-resource=", "aj"},
1129 {"--save-temps", "-save-temps", 0},
1130 {"--shared", "-shared", 0},
1131 {"--silent", "-q", 0},
1132 {"--specs", "-specs=", "aj"},
1133 {"--static", "-static", 0},
1134 {"--std", "-std=", "aj"},
1135 {"--symbolic", "-symbolic", 0},
1136 {"--sysroot", "--sysroot=", "aj"},
1137 {"--time", "-time", 0},
1138 {"--trace-includes", "-H", 0},
1139 {"--traditional", "-traditional", 0},
1140 {"--traditional-cpp", "-traditional-cpp", 0},
1141 {"--trigraphs", "-trigraphs", 0},
1142 {"--undefine-macro", "-U", "aj"},
1143 {"--user-dependencies", "-MM", 0},
1144 {"--verbose", "-v", 0},
1145 {"--warn-", "-W", "*j"},
1146 {"--write-dependencies", "-MD", 0},
1147 {"--write-user-dependencies", "-MMD", 0},
1152 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1153 static const struct {
1154 const char *const option_found
;
1155 const char *const replacements
;
1156 } target_option_translations
[] =
1158 TARGET_OPTION_TRANSLATE_TABLE
,
1163 /* Translate the options described by *ARGCP and *ARGVP.
1164 Make a new vector and store it back in *ARGVP,
1165 and store its length in *ARGVC. */
1168 translate_options (int *argcp
, const char *const **argvp
)
1172 const char *const *argv
= *argvp
;
1173 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1174 const char **newv
= xmalloc (newvsize
);
1178 newv
[newindex
++] = argv
[i
++];
1182 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1186 target_option_translations
[tott_idx
].option_found
;
1189 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1196 for (sp
= target_option_translations
[tott_idx
].replacements
;
1203 newvsize
+= spaces
* sizeof (const char *);
1204 newv
= xrealloc (newv
, newvsize
);
1206 sp
= target_option_translations
[tott_idx
].replacements
;
1215 newv
[newindex
++] = np
;
1216 while (*np
!= ' ' && *np
)
1227 if (target_option_translations
[tott_idx
].option_found
)
1231 /* Translate -- options. */
1232 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1235 /* Find a mapping that applies to this option. */
1236 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1238 size_t optlen
= strlen (option_map
[j
].name
);
1239 size_t arglen
= strlen (argv
[i
]);
1240 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1241 const char *arginfo
= option_map
[j
].arg_info
;
1246 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1248 const char *arg
= 0;
1250 if (arglen
< optlen
)
1253 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1254 if (strlen (option_map
[k
].name
) >= arglen
1255 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1257 error ("ambiguous abbreviation %s", argv
[i
]);
1261 if (k
!= ARRAY_SIZE (option_map
))
1265 if (arglen
> optlen
)
1267 /* If the option has an argument, accept that. */
1268 if (argv
[i
][optlen
] == '=')
1269 arg
= argv
[i
] + optlen
+ 1;
1271 /* If this mapping requires extra text at end of name,
1272 accept that as "argument". */
1273 else if (strchr (arginfo
, '*') != 0)
1274 arg
= argv
[i
] + optlen
;
1276 /* Otherwise, extra text at end means mismatch.
1277 Try other mappings. */
1282 else if (strchr (arginfo
, '*') != 0)
1284 error ("incomplete '%s' option", option_map
[j
].name
);
1288 /* Handle arguments. */
1289 if (strchr (arginfo
, 'a') != 0)
1295 error ("missing argument to '%s' option",
1296 option_map
[j
].name
);
1303 else if (strchr (arginfo
, '*') != 0)
1305 else if (strchr (arginfo
, 'o') == 0)
1308 error ("extraneous argument to '%s' option",
1309 option_map
[j
].name
);
1313 /* Store the translation as one argv elt or as two. */
1314 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1315 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1319 newv
[newindex
++] = option_map
[j
].equivalent
;
1320 newv
[newindex
++] = arg
;
1323 newv
[newindex
++] = option_map
[j
].equivalent
;
1331 /* Handle old-fashioned options--just copy them through,
1332 with their arguments. */
1333 else if (argv
[i
][0] == '-')
1335 const char *p
= argv
[i
] + 1;
1339 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1340 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1341 else if (WORD_SWITCH_TAKES_ARG (p
))
1342 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1343 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1346 else if (! strcmp (p
, "Xlinker"))
1348 else if (! strcmp (p
, "Xpreprocessor"))
1350 else if (! strcmp (p
, "Xassembler"))
1353 /* Watch out for an option at the end of the command line that
1354 is missing arguments, and avoid skipping past the end of the
1356 if (nskip
+ i
> argc
)
1361 newv
[newindex
++] = argv
[i
++];
1366 /* Ordinary operands, or +e options. */
1367 newv
[newindex
++] = argv
[i
++];
1377 skip_whitespace (char *p
)
1381 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1382 be considered whitespace. */
1383 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1385 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1399 /* Structures to keep track of prefixes to try when looking for files. */
1403 const char *prefix
; /* String to prepend to the path. */
1404 struct prefix_list
*next
; /* Next in linked list. */
1405 int require_machine_suffix
; /* Don't use without machine_suffix. */
1406 /* 2 means try both machine_suffix and just_machine_suffix. */
1407 int priority
; /* Sort key - priority within list. */
1408 int os_multilib
; /* 1 if OS multilib scheme should be used,
1409 0 for GCC multilib scheme. */
1414 struct prefix_list
*plist
; /* List of prefixes to try */
1415 int max_len
; /* Max length of a prefix in PLIST */
1416 const char *name
; /* Name of this list (used in config stuff) */
1419 /* List of prefixes to try when looking for executables. */
1421 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1423 /* List of prefixes to try when looking for startup (crt0) files. */
1425 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1427 /* List of prefixes to try when looking for include files. */
1429 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1431 /* Suffix to attach to directories searched for commands.
1432 This looks like `MACHINE/VERSION/'. */
1434 static const char *machine_suffix
= 0;
1436 /* Suffix to attach to directories searched for commands.
1437 This is just `MACHINE/'. */
1439 static const char *just_machine_suffix
= 0;
1441 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1443 static const char *gcc_exec_prefix
;
1445 /* Adjusted value of standard_libexec_prefix. */
1447 static const char *gcc_libexec_prefix
;
1449 /* Default prefixes to attach to command names. */
1451 #ifndef STANDARD_STARTFILE_PREFIX_1
1452 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1454 #ifndef STANDARD_STARTFILE_PREFIX_2
1455 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1458 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1459 #undef MD_EXEC_PREFIX
1460 #undef MD_STARTFILE_PREFIX
1461 #undef MD_STARTFILE_PREFIX_1
1464 /* If no prefixes defined, use the null string, which will disable them. */
1465 #ifndef MD_EXEC_PREFIX
1466 #define MD_EXEC_PREFIX ""
1468 #ifndef MD_STARTFILE_PREFIX
1469 #define MD_STARTFILE_PREFIX ""
1471 #ifndef MD_STARTFILE_PREFIX_1
1472 #define MD_STARTFILE_PREFIX_1 ""
1475 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1476 static const char *const standard_exec_prefix_1
= "/usr/libexec/gcc/";
1477 static const char *const standard_exec_prefix_2
= "/usr/lib/gcc/";
1478 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1480 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1481 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1482 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1483 static const char *const standard_startfile_prefix_1
1484 = STANDARD_STARTFILE_PREFIX_1
;
1485 static const char *const standard_startfile_prefix_2
1486 = STANDARD_STARTFILE_PREFIX_2
;
1488 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1489 static const char *tooldir_prefix
;
1491 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1493 static const char *standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1495 /* Subdirectory to use for locating libraries. Set by
1496 set_multilib_dir based on the compilation options. */
1498 static const char *multilib_dir
;
1500 /* Subdirectory to use for locating libraries in OS conventions. Set by
1501 set_multilib_dir based on the compilation options. */
1503 static const char *multilib_os_dir
;
1505 /* Structure to keep track of the specs that have been defined so far.
1506 These are accessed using %(specname) or %[specname] in a compiler
1511 /* The following 2 fields must be first */
1512 /* to allow EXTRA_SPECS to be initialized */
1513 const char *name
; /* name of the spec. */
1514 const char *ptr
; /* available ptr if no static pointer */
1516 /* The following fields are not initialized */
1517 /* by EXTRA_SPECS */
1518 const char **ptr_spec
; /* pointer to the spec itself. */
1519 struct spec_list
*next
; /* Next spec in linked list. */
1520 int name_len
; /* length of the name */
1521 int alloc_p
; /* whether string was allocated */
1524 #define INIT_STATIC_SPEC(NAME,PTR) \
1525 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1527 /* List of statically defined specs. */
1528 static struct spec_list static_specs
[] =
1530 INIT_STATIC_SPEC ("asm", &asm_spec
),
1531 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1532 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1533 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1534 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1535 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1536 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1537 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1538 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1539 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1540 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1541 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1542 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1543 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1544 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1545 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1546 INIT_STATIC_SPEC ("link", &link_spec
),
1547 INIT_STATIC_SPEC ("lib", &lib_spec
),
1548 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1549 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1550 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1551 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1552 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1553 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1554 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1555 INIT_STATIC_SPEC ("version", &compiler_version
),
1556 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1557 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1558 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1559 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1560 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1561 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1562 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1563 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1564 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1565 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1566 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1567 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1568 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1569 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1570 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1573 #ifdef EXTRA_SPECS /* additional specs needed */
1574 /* Structure to keep track of just the first two args of a spec_list.
1575 That is all that the EXTRA_SPECS macro gives us. */
1578 const char *const name
;
1579 const char *const ptr
;
1582 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1583 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1586 /* List of dynamically allocates specs that have been defined so far. */
1588 static struct spec_list
*specs
= (struct spec_list
*) 0;
1590 /* List of static spec functions. */
1592 static const struct spec_function static_spec_functions
[] =
1594 { "if-exists", if_exists_spec_function
},
1595 { "if-exists-else", if_exists_else_spec_function
},
1596 { "replace-outfile", replace_outfile_spec_function
},
1597 { "version-compare", version_compare_spec_function
},
1598 { "include", include_spec_function
},
1599 #ifdef EXTRA_SPEC_FUNCTIONS
1600 EXTRA_SPEC_FUNCTIONS
1605 static int processing_spec_function
;
1607 /* Add appropriate libgcc specs to OBSTACK, taking into account
1608 various permutations of -shared-libgcc, -shared, and such. */
1610 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1612 #ifndef USE_LD_AS_NEEDED
1613 #define USE_LD_AS_NEEDED 0
1617 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1618 const char *static_name
, const char *eh_name
)
1622 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1623 "%{!static:%{!static-libgcc:"
1624 #if USE_LD_AS_NEEDED
1625 "%{!shared-libgcc:",
1626 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1629 shared_name
, "%{!shared: ", static_name
, "}"
1633 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1634 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1638 "%{shared-libgcc:", shared_name
, "}"
1639 "%{!shared-libgcc:", static_name
, "}"
1642 "%{shared:", shared_name
, "}"
1647 obstack_grow (obstack
, buf
, strlen (buf
));
1650 #endif /* ENABLE_SHARED_LIBGCC */
1652 /* Initialize the specs lookup routines. */
1657 struct spec_list
*next
= (struct spec_list
*) 0;
1658 struct spec_list
*sl
= (struct spec_list
*) 0;
1662 return; /* Already initialized. */
1665 notice ("Using built-in specs.\n");
1668 extra_specs
= xcalloc (sizeof (struct spec_list
),
1669 ARRAY_SIZE (extra_specs_1
));
1671 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1673 sl
= &extra_specs
[i
];
1674 sl
->name
= extra_specs_1
[i
].name
;
1675 sl
->ptr
= extra_specs_1
[i
].ptr
;
1677 sl
->name_len
= strlen (sl
->name
);
1678 sl
->ptr_spec
= &sl
->ptr
;
1683 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1684 on ?: in file-scope variable initializations. */
1685 asm_debug
= ASM_DEBUG_SPEC
;
1687 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1689 sl
= &static_specs
[i
];
1694 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1695 /* ??? If neither -shared-libgcc nor --static-libgcc was
1696 seen, then we should be making an educated guess. Some proposed
1697 heuristics for ELF include:
1699 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1700 program will be doing dynamic loading, which will likely
1701 need the shared libgcc.
1703 (2) If "-ldl", then it's also a fair bet that we're doing
1706 (3) For each ET_DYN we're linking against (either through -lfoo
1707 or /some/path/foo.so), check to see whether it or one of
1708 its dependencies depends on a shared libgcc.
1712 If the runtime is fixed to look for program headers instead
1713 of calling __register_frame_info at all, for each object,
1714 use the shared libgcc if any EH symbol referenced.
1716 If crtstuff is fixed to not invoke __register_frame_info
1717 automatically, for each object, use the shared libgcc if
1718 any non-empty unwind section found.
1720 Doing any of this probably requires invoking an external program to
1721 do the actual object file scanning. */
1723 const char *p
= libgcc_spec
;
1726 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1727 when given the proper command line arguments. */
1730 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1732 init_gcc_specs (&obstack
,
1734 #ifdef USE_LIBUNWIND_EXCEPTIONS
1740 #ifdef USE_LIBUNWIND_EXCEPTIONS
1741 # ifdef HAVE_LD_STATIC_DYNAMIC
1742 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1752 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1754 /* Ug. We don't know shared library extensions. Hope that
1755 systems that use this form don't do shared libraries. */
1756 init_gcc_specs (&obstack
,
1760 #ifdef USE_LIBUNWIND_EXCEPTIONS
1769 obstack_1grow (&obstack
, *p
);
1770 in_sep
= (*p
== ' ');
1775 obstack_1grow (&obstack
, '\0');
1776 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1779 #ifdef USE_AS_TRADITIONAL_FORMAT
1780 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1782 static const char tf
[] = "--traditional-format ";
1783 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1784 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1785 asm_spec
= XOBFINISH (&obstack
, const char *);
1789 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1790 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1791 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1792 link_spec
= XOBFINISH (&obstack
, const char *);
1798 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1799 removed; If the spec starts with a + then SPEC is added to the end of the
1803 set_spec (const char *name
, const char *spec
)
1805 struct spec_list
*sl
;
1806 const char *old_spec
;
1807 int name_len
= strlen (name
);
1810 /* If this is the first call, initialize the statically allocated specs. */
1813 struct spec_list
*next
= (struct spec_list
*) 0;
1814 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1816 sl
= &static_specs
[i
];
1823 /* See if the spec already exists. */
1824 for (sl
= specs
; sl
; sl
= sl
->next
)
1825 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1830 /* Not found - make it. */
1831 sl
= XNEW (struct spec_list
);
1832 sl
->name
= xstrdup (name
);
1833 sl
->name_len
= name_len
;
1834 sl
->ptr_spec
= &sl
->ptr
;
1836 *(sl
->ptr_spec
) = "";
1841 old_spec
= *(sl
->ptr_spec
);
1842 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1843 ? concat (old_spec
, spec
+ 1, NULL
)
1848 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1851 /* Free the old spec. */
1852 if (old_spec
&& sl
->alloc_p
)
1853 free ((void *) old_spec
);
1858 /* Accumulate a command (program name and args), and run it. */
1860 /* Vector of pointers to arguments in the current line of specifications. */
1862 static const char **argbuf
;
1864 /* Number of elements allocated in argbuf. */
1866 static int argbuf_length
;
1868 /* Number of elements in argbuf currently in use (containing args). */
1870 static int argbuf_index
;
1872 /* Position in the argbuf array containing the name of the output file
1873 (the value associated with the "-o" flag). */
1875 static int have_o_argbuf_index
= 0;
1877 /* Were the options -c or -S passed. */
1878 static int have_c
= 0;
1880 /* Was the option -o passed. */
1881 static int have_o
= 0;
1883 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1884 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1887 static struct temp_name
{
1888 const char *suffix
; /* suffix associated with the code. */
1889 int length
; /* strlen (suffix). */
1890 int unique
; /* Indicates whether %g or %u/%U was used. */
1891 const char *filename
; /* associated filename. */
1892 int filename_length
; /* strlen (filename). */
1893 struct temp_name
*next
;
1896 /* Number of commands executed so far. */
1898 static int execution_count
;
1900 /* Number of commands that exited with a signal. */
1902 static int signal_count
;
1904 /* Name with which this program was invoked. */
1906 static const char *programname
;
1908 /* Allocate the argument vector. */
1914 argbuf
= XNEWVEC (const char *, argbuf_length
);
1917 /* Clear out the vector of arguments (after a command is executed). */
1925 /* Add one argument to the vector at the end.
1926 This is done when a space is seen or at the end of the line.
1927 If DELETE_ALWAYS is nonzero, the arg is a filename
1928 and the file should be deleted eventually.
1929 If DELETE_FAILURE is nonzero, the arg is a filename
1930 and the file should be deleted if this compilation fails. */
1933 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1935 if (argbuf_index
+ 1 == argbuf_length
)
1936 argbuf
= xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (const char *));
1938 argbuf
[argbuf_index
++] = arg
;
1939 argbuf
[argbuf_index
] = 0;
1941 if (strcmp (arg
, "-o") == 0)
1942 have_o_argbuf_index
= argbuf_index
;
1943 if (delete_always
|| delete_failure
)
1944 record_temp_file (arg
, delete_always
, delete_failure
);
1947 /* Load specs from a file name named FILENAME, replacing occurrences of
1948 various different types of line-endings, \r\n, \n\r and just \r, with
1952 load_specs (const char *filename
)
1956 struct stat statbuf
;
1963 notice ("Reading specs from %s\n", filename
);
1965 /* Open and stat the file. */
1966 desc
= open (filename
, O_RDONLY
, 0);
1968 pfatal_with_name (filename
);
1969 if (stat (filename
, &statbuf
) < 0)
1970 pfatal_with_name (filename
);
1972 /* Read contents of file into BUFFER. */
1973 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1974 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1976 pfatal_with_name (filename
);
1977 buffer
[readlen
] = 0;
1980 specs
= XNEWVEC (char, readlen
+ 1);
1982 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1988 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1990 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2004 /* Read compilation specs from a file named FILENAME,
2005 replacing the default ones.
2007 A suffix which starts with `*' is a definition for
2008 one of the machine-specific sub-specs. The "suffix" should be
2009 *asm, *cc1, *cpp, *link, *startfile, etc.
2010 The corresponding spec is stored in asm_spec, etc.,
2011 rather than in the `compilers' vector.
2013 Anything invalid in the file is a fatal error. */
2016 read_specs (const char *filename
, int main_p
)
2021 buffer
= load_specs (filename
);
2023 /* Scan BUFFER for specs, putting them in the vector. */
2029 char *in
, *out
, *p1
, *p2
, *p3
;
2031 /* Advance P in BUFFER to the next nonblank nocomment line. */
2032 p
= skip_whitespace (p
);
2036 /* Is this a special command that starts with '%'? */
2037 /* Don't allow this for the main specs file, since it would
2038 encourage people to overwrite it. */
2039 if (*p
== '%' && !main_p
)
2042 while (*p
&& *p
!= '\n')
2048 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2049 && (p1
[sizeof "%include" - 1] == ' '
2050 || p1
[sizeof "%include" - 1] == '\t'))
2054 p1
+= sizeof ("%include");
2055 while (*p1
== ' ' || *p1
== '\t')
2058 if (*p1
++ != '<' || p
[-2] != '>')
2059 fatal ("specs %%include syntax malformed after %ld characters",
2060 (long) (p1
- buffer
+ 1));
2063 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2064 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2067 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2068 && (p1
[sizeof "%include_noerr" - 1] == ' '
2069 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2073 p1
+= sizeof "%include_noerr";
2074 while (*p1
== ' ' || *p1
== '\t')
2077 if (*p1
++ != '<' || p
[-2] != '>')
2078 fatal ("specs %%include syntax malformed after %ld characters",
2079 (long) (p1
- buffer
+ 1));
2082 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2084 read_specs (new_filename
, FALSE
);
2085 else if (verbose_flag
)
2086 notice ("could not find specs file %s\n", p1
);
2089 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2090 && (p1
[sizeof "%rename" - 1] == ' '
2091 || p1
[sizeof "%rename" - 1] == '\t'))
2094 struct spec_list
*sl
;
2095 struct spec_list
*newsl
;
2097 /* Get original name. */
2098 p1
+= sizeof "%rename";
2099 while (*p1
== ' ' || *p1
== '\t')
2102 if (! ISALPHA ((unsigned char) *p1
))
2103 fatal ("specs %%rename syntax malformed after %ld characters",
2104 (long) (p1
- buffer
));
2107 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2110 if (*p2
!= ' ' && *p2
!= '\t')
2111 fatal ("specs %%rename syntax malformed after %ld characters",
2112 (long) (p2
- buffer
));
2116 while (*p2
== ' ' || *p2
== '\t')
2119 if (! ISALPHA ((unsigned char) *p2
))
2120 fatal ("specs %%rename syntax malformed after %ld characters",
2121 (long) (p2
- buffer
));
2123 /* Get new spec name. */
2125 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2129 fatal ("specs %%rename syntax malformed after %ld characters",
2130 (long) (p3
- buffer
));
2133 for (sl
= specs
; sl
; sl
= sl
->next
)
2134 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2138 fatal ("specs %s spec was not found to be renamed", p1
);
2140 if (strcmp (p1
, p2
) == 0)
2143 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2144 if (strcmp (newsl
->name
, p2
) == 0)
2145 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2150 notice ("rename spec %s to %s\n", p1
, p2
);
2152 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2156 set_spec (p2
, *(sl
->ptr_spec
));
2158 free ((void *) *(sl
->ptr_spec
));
2160 *(sl
->ptr_spec
) = "";
2165 fatal ("specs unknown %% command after %ld characters",
2166 (long) (p1
- buffer
));
2169 /* Find the colon that should end the suffix. */
2171 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2174 /* The colon shouldn't be missing. */
2176 fatal ("specs file malformed after %ld characters",
2177 (long) (p1
- buffer
));
2179 /* Skip back over trailing whitespace. */
2181 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2184 /* Copy the suffix to a string. */
2185 suffix
= save_string (p
, p2
- p
);
2186 /* Find the next line. */
2187 p
= skip_whitespace (p1
+ 1);
2189 fatal ("specs file malformed after %ld characters",
2190 (long) (p
- buffer
));
2193 /* Find next blank line or end of string. */
2194 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2197 /* Specs end at the blank line and do not include the newline. */
2198 spec
= save_string (p
, p1
- p
);
2201 /* Delete backslash-newline sequences from the spec. */
2206 if (in
[0] == '\\' && in
[1] == '\n')
2208 else if (in
[0] == '#')
2209 while (*in
&& *in
!= '\n')
2217 if (suffix
[0] == '*')
2219 if (! strcmp (suffix
, "*link_command"))
2220 link_command_spec
= spec
;
2222 set_spec (suffix
+ 1, spec
);
2226 /* Add this pair to the vector. */
2228 = xrealloc (compilers
,
2229 (n_compilers
+ 2) * sizeof (struct compiler
));
2231 compilers
[n_compilers
].suffix
= suffix
;
2232 compilers
[n_compilers
].spec
= spec
;
2234 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2238 link_command_spec
= spec
;
2241 if (link_command_spec
== 0)
2242 fatal ("spec file has no spec for linking");
2245 /* Record the names of temporary files we tell compilers to write,
2246 and delete them at the end of the run. */
2248 /* This is the common prefix we use to make temp file names.
2249 It is chosen once for each run of this program.
2250 It is substituted into a spec by %g or %j.
2251 Thus, all temp file names contain this prefix.
2252 In practice, all temp file names start with this prefix.
2254 This prefix comes from the envvar TMPDIR if it is defined;
2255 otherwise, from the P_tmpdir macro if that is defined;
2256 otherwise, in /usr/tmp or /tmp;
2257 or finally the current directory if all else fails. */
2259 static const char *temp_filename
;
2261 /* Length of the prefix. */
2263 static int temp_filename_length
;
2265 /* Define the list of temporary files to delete. */
2270 struct temp_file
*next
;
2273 /* Queue of files to delete on success or failure of compilation. */
2274 static struct temp_file
*always_delete_queue
;
2275 /* Queue of files to delete on failure of compilation. */
2276 static struct temp_file
*failure_delete_queue
;
2278 /* Record FILENAME as a file to be deleted automatically.
2279 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2280 otherwise delete it in any case.
2281 FAIL_DELETE nonzero means delete it if a compilation step fails;
2282 otherwise delete it in any case. */
2285 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2287 char *const name
= xstrdup (filename
);
2291 struct temp_file
*temp
;
2292 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2293 if (! strcmp (name
, temp
->name
))
2296 temp
= XNEW (struct temp_file
);
2297 temp
->next
= always_delete_queue
;
2299 always_delete_queue
= temp
;
2306 struct temp_file
*temp
;
2307 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2308 if (! strcmp (name
, temp
->name
))
2311 temp
= XNEW (struct temp_file
);
2312 temp
->next
= failure_delete_queue
;
2314 failure_delete_queue
= temp
;
2320 /* Delete all the temporary files whose names we previously recorded. */
2322 #ifndef DELETE_IF_ORDINARY
2323 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2326 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2327 if (unlink (NAME) < 0) \
2329 perror_with_name (NAME); \
2334 delete_if_ordinary (const char *name
)
2340 printf ("Delete %s? (y or n) ", name
);
2344 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2347 if (i
== 'y' || i
== 'Y')
2349 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2353 delete_temp_files (void)
2355 struct temp_file
*temp
;
2357 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2358 delete_if_ordinary (temp
->name
);
2359 always_delete_queue
= 0;
2362 /* Delete all the files to be deleted on error. */
2365 delete_failure_queue (void)
2367 struct temp_file
*temp
;
2369 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2370 delete_if_ordinary (temp
->name
);
2374 clear_failure_queue (void)
2376 failure_delete_queue
= 0;
2379 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2381 If DO_MULTI is true iterate over the paths twice, first with multilib
2382 suffix then without, otherwise iterate over the paths once without
2383 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2384 to avoid visiting the same path twice, but we could do better. For
2385 instance, /usr/lib/../lib is considered different from /usr/lib.
2386 At least EXTRA_SPACE chars past the end of the path passed to
2387 CALLBACK are available for use by the callback.
2388 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2390 Returns the value returned by CALLBACK. */
2393 for_each_path (const struct path_prefix
*paths
,
2396 void *(*callback
) (char *, void *),
2397 void *callback_info
)
2399 struct prefix_list
*pl
;
2400 const char *multi_dir
= NULL
;
2401 const char *multi_os_dir
= NULL
;
2402 const char *multi_suffix
;
2403 const char *just_multi_suffix
;
2406 bool skip_multi_dir
= false;
2407 bool skip_multi_os_dir
= false;
2409 multi_suffix
= machine_suffix
;
2410 just_multi_suffix
= just_machine_suffix
;
2411 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2413 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2414 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2415 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2417 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2418 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2422 size_t multi_dir_len
= 0;
2423 size_t multi_os_dir_len
= 0;
2425 size_t just_suffix_len
;
2429 multi_dir_len
= strlen (multi_dir
);
2431 multi_os_dir_len
= strlen (multi_os_dir
);
2432 suffix_len
= strlen (multi_suffix
);
2433 just_suffix_len
= strlen (just_multi_suffix
);
2437 len
= paths
->max_len
+ extra_space
+ 1;
2438 if (suffix_len
> multi_os_dir_len
)
2441 len
+= multi_os_dir_len
;
2442 path
= XNEWVEC (char, len
);
2445 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2447 len
= strlen (pl
->prefix
);
2448 memcpy (path
, pl
->prefix
, len
);
2450 /* Look first in MACHINE/VERSION subdirectory. */
2451 if (!skip_multi_dir
)
2453 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2454 ret
= callback (path
, callback_info
);
2459 /* Some paths are tried with just the machine (ie. target)
2460 subdir. This is used for finding as, ld, etc. */
2462 && pl
->require_machine_suffix
== 2)
2464 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2465 ret
= callback (path
, callback_info
);
2470 /* Now try the base path. */
2471 if (!pl
->require_machine_suffix
2472 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2474 const char *this_multi
;
2475 size_t this_multi_len
;
2477 if (pl
->os_multilib
)
2479 this_multi
= multi_os_dir
;
2480 this_multi_len
= multi_os_dir_len
;
2484 this_multi
= multi_dir
;
2485 this_multi_len
= multi_dir_len
;
2489 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2493 ret
= callback (path
, callback_info
);
2501 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2504 /* Run through the paths again, this time without multilibs.
2505 Don't repeat any we have already seen. */
2508 free ((char *) multi_dir
);
2510 free ((char *) multi_suffix
);
2511 multi_suffix
= machine_suffix
;
2512 free ((char *) just_multi_suffix
);
2513 just_multi_suffix
= just_machine_suffix
;
2516 skip_multi_dir
= true;
2519 free ((char *) multi_os_dir
);
2520 multi_os_dir
= NULL
;
2523 skip_multi_os_dir
= true;
2528 free ((char *) multi_dir
);
2529 free ((char *) multi_suffix
);
2530 free ((char *) just_multi_suffix
);
2533 free ((char *) multi_os_dir
);
2539 /* Callback for build_search_list. Adds path to obstack being built. */
2541 struct add_to_obstack_info
{
2548 add_to_obstack (char *path
, void *data
)
2550 struct add_to_obstack_info
*info
= data
;
2552 if (info
->check_dir
&& !is_directory (path
, false))
2555 if (!info
->first_time
)
2556 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2558 obstack_grow (info
->ob
, path
, strlen (path
));
2560 info
->first_time
= false;
2564 /* Build a list of search directories from PATHS.
2565 PREFIX is a string to prepend to the list.
2566 If CHECK_DIR_P is true we ensure the directory exists.
2567 If DO_MULTI is true, multilib paths are output first, then
2569 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2570 It is also used by the --print-search-dirs flag. */
2573 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2574 bool check_dir
, bool do_multi
)
2576 struct add_to_obstack_info info
;
2578 info
.ob
= &collect_obstack
;
2579 info
.check_dir
= check_dir
;
2580 info
.first_time
= true;
2582 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2583 obstack_1grow (&collect_obstack
, '=');
2585 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2587 obstack_1grow (&collect_obstack
, '\0');
2588 return XOBFINISH (&collect_obstack
, char *);
2591 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2595 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2598 putenv (build_search_list (paths
, env_var
, true, do_multi
));
2601 /* Check whether NAME can be accessed in MODE. This is like access,
2602 except that it never considers directories to be executable. */
2605 access_check (const char *name
, int mode
)
2611 if (stat (name
, &st
) < 0
2612 || S_ISDIR (st
.st_mode
))
2616 return access (name
, mode
);
2619 /* Callback for find_a_file. Appends the file name to the directory
2620 path. If the resulting file exists in the right mode, return the
2621 full pathname to the file. */
2623 struct file_at_path_info
{
2632 file_at_path (char *path
, void *data
)
2634 struct file_at_path_info
*info
= data
;
2635 size_t len
= strlen (path
);
2637 memcpy (path
+ len
, info
->name
, info
->name_len
);
2638 len
+= info
->name_len
;
2640 /* Some systems have a suffix for executable files.
2641 So try appending that first. */
2642 if (info
->suffix_len
)
2644 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2645 if (access_check (path
, info
->mode
) == 0)
2650 if (access_check (path
, info
->mode
) == 0)
2656 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2657 access to check permissions. If DO_MULTI is true, search multilib
2658 paths then non-multilib paths, otherwise do not search multilib paths.
2659 Return 0 if not found, otherwise return its name, allocated with malloc. */
2662 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2665 struct file_at_path_info info
;
2667 #ifdef DEFAULT_ASSEMBLER
2668 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2669 return xstrdup (DEFAULT_ASSEMBLER
);
2672 #ifdef DEFAULT_LINKER
2673 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2674 return xstrdup (DEFAULT_LINKER
);
2677 /* Determine the filename to execute (special case for absolute paths). */
2679 if (IS_ABSOLUTE_PATH (name
))
2681 if (access (name
, mode
) == 0)
2682 return xstrdup (name
);
2688 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2689 info
.name_len
= strlen (info
.name
);
2690 info
.suffix_len
= strlen (info
.suffix
);
2693 return for_each_path (pprefix
, do_multi
, info
.name_len
+ info
.suffix_len
,
2694 file_at_path
, &info
);
2697 /* Ranking of prefixes in the sort list. -B prefixes are put before
2700 enum path_prefix_priority
2702 PREFIX_PRIORITY_B_OPT
,
2703 PREFIX_PRIORITY_LAST
2706 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2707 order according to PRIORITY. Within each PRIORITY, new entries are
2710 If WARN is nonzero, we will warn if no file is found
2711 through this prefix. WARN should point to an int
2712 which will be set to 1 if this entry is used.
2714 COMPONENT is the value to be passed to update_path.
2716 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2717 the complete value of machine_suffix.
2718 2 means try both machine_suffix and just_machine_suffix. */
2721 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2722 const char *component
, /* enum prefix_priority */ int priority
,
2723 int require_machine_suffix
, int os_multilib
)
2725 struct prefix_list
*pl
, **prev
;
2728 for (prev
= &pprefix
->plist
;
2729 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2730 prev
= &(*prev
)->next
)
2733 /* Keep track of the longest prefix. */
2735 prefix
= update_path (prefix
, component
);
2736 len
= strlen (prefix
);
2737 if (len
> pprefix
->max_len
)
2738 pprefix
->max_len
= len
;
2740 pl
= XNEW (struct prefix_list
);
2741 pl
->prefix
= prefix
;
2742 pl
->require_machine_suffix
= require_machine_suffix
;
2743 pl
->priority
= priority
;
2744 pl
->os_multilib
= os_multilib
;
2746 /* Insert after PREV. */
2751 /* Same as add_prefix, but prepending target_system_root to prefix. */
2753 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2754 const char *component
,
2755 /* enum prefix_priority */ int priority
,
2756 int require_machine_suffix
, int os_multilib
)
2758 if (!IS_ABSOLUTE_PATH (prefix
))
2759 fatal ("system path '%s' is not absolute", prefix
);
2761 if (target_system_root
)
2763 if (target_sysroot_suffix
)
2764 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2765 prefix
= concat (target_system_root
, prefix
, NULL
);
2767 /* We have to override this because GCC's notion of sysroot
2768 moves along with GCC. */
2772 add_prefix (pprefix
, prefix
, component
, priority
,
2773 require_machine_suffix
, os_multilib
);
2776 /* Execute the command specified by the arguments on the current line of spec.
2777 When using pipes, this includes several piped-together commands
2778 with `|' between them.
2780 Return 0 if successful, -1 if failed. */
2786 int n_commands
; /* # of command. */
2788 struct pex_obj
*pex
;
2791 const char *prog
; /* program name. */
2792 const char **argv
; /* vector of args. */
2795 struct command
*commands
; /* each command buffer with above info. */
2797 gcc_assert (!processing_spec_function
);
2799 /* Count # of piped commands. */
2800 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2801 if (strcmp (argbuf
[i
], "|") == 0)
2804 /* Get storage for each command. */
2805 commands
= alloca (n_commands
* sizeof (struct command
));
2807 /* Split argbuf into its separate piped processes,
2808 and record info about each one.
2809 Also search for the programs that are to be run. */
2811 commands
[0].prog
= argbuf
[0]; /* first command. */
2812 commands
[0].argv
= &argbuf
[0];
2813 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2816 commands
[0].argv
[0] = string
;
2818 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2819 if (strcmp (argbuf
[i
], "|") == 0)
2820 { /* each command. */
2821 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2822 fatal ("-pipe not supported");
2824 argbuf
[i
] = 0; /* termination of command args. */
2825 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2826 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2827 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2830 commands
[n_commands
].argv
[0] = string
;
2834 argbuf
[argbuf_index
] = 0;
2836 /* If -v, print what we are about to do, and maybe query. */
2840 /* For help listings, put a blank line between sub-processes. */
2841 if (print_help_list
)
2842 fputc ('\n', stderr
);
2844 /* Print each piped command as a separate line. */
2845 for (i
= 0; i
< n_commands
; i
++)
2847 const char *const *j
;
2849 if (verbose_only_flag
)
2851 for (j
= commands
[i
].argv
; *j
; j
++)
2854 fprintf (stderr
, " \"");
2855 for (p
= *j
; *p
; ++p
)
2857 if (*p
== '"' || *p
== '\\' || *p
== '$')
2858 fputc ('\\', stderr
);
2861 fputc ('"', stderr
);
2865 for (j
= commands
[i
].argv
; *j
; j
++)
2866 fprintf (stderr
, " %s", *j
);
2868 /* Print a pipe symbol after all but the last command. */
2869 if (i
+ 1 != n_commands
)
2870 fprintf (stderr
, " |");
2871 fprintf (stderr
, "\n");
2874 if (verbose_only_flag
!= 0)
2876 /* verbose_only_flag should act as if the spec was
2877 executed, so increment execution_count before
2878 returning. This prevents spurious warnings about
2879 unused linker input files, etc. */
2884 notice ("\nGo ahead? (y or n) ");
2888 while (getchar () != '\n')
2891 if (i
!= 'y' && i
!= 'Y')
2896 #ifdef ENABLE_VALGRIND_CHECKING
2897 /* Run the each command through valgrind. To simplify prepending the
2898 path to valgrind and the option "-q" (for quiet operation unless
2899 something triggers), we allocate a separate argv array. */
2901 for (i
= 0; i
< n_commands
; i
++)
2907 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2910 argv
= alloca ((argc
+ 3) * sizeof (char *));
2912 argv
[0] = VALGRIND_PATH
;
2914 for (j
= 2; j
< argc
+ 2; j
++)
2915 argv
[j
] = commands
[i
].argv
[j
- 2];
2918 commands
[i
].argv
= argv
;
2919 commands
[i
].prog
= argv
[0];
2923 /* Run each piped subprocess. */
2925 pex
= pex_init (PEX_USE_PIPES
| (report_times
? PEX_RECORD_TIMES
: 0),
2926 programname
, temp_filename
);
2928 pfatal_with_name (_("pex_init failed"));
2930 for (i
= 0; i
< n_commands
; i
++)
2934 const char *string
= commands
[i
].argv
[0];
2936 errmsg
= pex_run (pex
,
2937 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2938 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2939 string
, (char * const *) commands
[i
].argv
,
2948 pfatal_with_name (errmsg
);
2952 if (string
!= commands
[i
].prog
)
2953 free ((void *) string
);
2958 /* Wait for all the subprocesses to finish. */
2962 struct pex_time
*times
= NULL
;
2965 statuses
= alloca (n_commands
* sizeof (int));
2966 if (!pex_get_status (pex
, n_commands
, statuses
))
2967 pfatal_with_name (_("failed to get exit status"));
2971 times
= alloca (n_commands
* sizeof (struct pex_time
));
2972 if (!pex_get_times (pex
, n_commands
, times
))
2973 pfatal_with_name (_("failed to get process times"));
2978 for (i
= 0; i
< n_commands
; ++i
)
2980 int status
= statuses
[i
];
2982 if (WIFSIGNALED (status
))
2985 /* SIGPIPE is a special case. It happens in -pipe mode
2986 when the compiler dies before the preprocessor is done,
2987 or the assembler dies before the compiler is done.
2988 There's generally been an error already, and this is
2989 just fallout. So don't generate another error unless
2990 we would otherwise have succeeded. */
2991 if (WTERMSIG (status
) == SIGPIPE
2992 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3000 Internal error: %s (program %s)\n\
3001 Please submit a full bug report.\n\
3002 See %s for instructions.",
3003 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3006 else if (WIFEXITED (status
)
3007 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3009 if (WEXITSTATUS (status
) > greatest_status
)
3010 greatest_status
= WEXITSTATUS (status
);
3016 struct pex_time
*pt
= ×
[i
];
3019 ut
= ((double) pt
->user_seconds
3020 + (double) pt
->user_microseconds
/ 1.0e6
);
3021 st
= ((double) pt
->system_seconds
3022 + (double) pt
->system_microseconds
/ 1.0e6
);
3025 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3033 /* Find all the switches given to us
3034 and make a vector describing them.
3035 The elements of the vector are strings, one per switch given.
3036 If a switch uses following arguments, then the `part1' field
3037 is the switch itself and the `args' field
3038 is a null-terminated vector containing the following arguments.
3039 The `live_cond' field is:
3041 1 if the switch is true in a conditional spec,
3042 -1 if false (overridden by a later switch)
3043 -2 if this switch should be ignored (used in %<S)
3044 The `validated' field is nonzero if any spec has looked at this switch;
3045 if it remains zero at the end of the run, it must be meaningless. */
3048 #define SWITCH_FALSE -1
3049 #define SWITCH_IGNORE -2
3050 #define SWITCH_LIVE 1
3057 unsigned char validated
;
3058 unsigned char ordering
;
3061 static struct switchstr
*switches
;
3063 static int n_switches
;
3065 /* Language is one of three things:
3067 1) The name of a real programming language.
3068 2) NULL, indicating that no one has figured out
3070 3) '*', indicating that the file should be passed
3075 const char *language
;
3076 struct compiler
*incompiler
;
3081 /* Also a vector of input files specified. */
3083 static struct infile
*infiles
;
3087 /* True if multiple input files are being compiled to a single
3090 static bool combine_inputs
;
3092 /* This counts the number of libraries added by lang_specific_driver, so that
3093 we can tell if there were any user supplied any files or libraries. */
3095 static int added_libraries
;
3097 /* And a vector of corresponding output files is made up later. */
3099 const char **outfiles
;
3101 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3103 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3104 is true if we should look for an executable suffix. DO_OBJ
3105 is true if we should look for an object suffix. */
3108 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3109 int do_obj ATTRIBUTE_UNUSED
)
3111 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3119 len
= strlen (name
);
3121 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3122 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3123 if (do_obj
&& len
> 2
3124 && name
[len
- 2] == '.'
3125 && name
[len
- 1] == 'o')
3127 obstack_grow (&obstack
, name
, len
- 2);
3128 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3129 name
= XOBFINISH (&obstack
, const char *);
3133 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3134 /* If there is no filetype, make it the executable suffix (which includes
3135 the "."). But don't get confused if we have just "-o". */
3136 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3139 for (i
= len
- 1; i
>= 0; i
--)
3140 if (IS_DIR_SEPARATOR (name
[i
]))
3143 for (i
++; i
< len
; i
++)
3147 obstack_grow (&obstack
, name
, len
);
3148 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3149 strlen (TARGET_EXECUTABLE_SUFFIX
));
3150 name
= XOBFINISH (&obstack
, const char *);
3157 /* Display the command line switches accepted by gcc. */
3161 printf (_("Usage: %s [options] file...\n"), programname
);
3162 fputs (_("Options:\n"), stdout
);
3164 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3165 fputs (_(" --help Display this information\n"), stdout
);
3166 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3168 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3169 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3170 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3171 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3172 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3173 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3174 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3175 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3176 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3178 -print-multi-lib Display the mapping between command line options and\n\
3179 multiple library search directories\n"), stdout
);
3180 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3181 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3182 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3183 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3184 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3185 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3186 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3187 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3188 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3189 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3190 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3191 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3192 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3194 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3195 and libraries\n"), stdout
);
3196 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3197 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3198 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3199 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3200 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3201 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3202 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3203 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3204 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3206 -x <language> Specify the language of the following input files\n\
3207 Permissible languages include: c c++ assembler none\n\
3208 'none' means revert to the default behavior of\n\
3209 guessing the language based on the file's extension\n\
3213 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3214 passed on to the various sub-processes invoked by %s. In order to pass\n\
3215 other options on to these processes the -W<letter> options must be used.\n\
3218 /* The rest of the options are displayed by invocations of the various
3223 add_preprocessor_option (const char *option
, int len
)
3225 n_preprocessor_options
++;
3227 if (! preprocessor_options
)
3228 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3230 preprocessor_options
= xrealloc (preprocessor_options
,
3231 n_preprocessor_options
* sizeof (char *));
3233 preprocessor_options
[n_preprocessor_options
- 1] =
3234 save_string (option
, len
);
3238 add_assembler_option (const char *option
, int len
)
3240 n_assembler_options
++;
3242 if (! assembler_options
)
3243 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3245 assembler_options
= xrealloc (assembler_options
,
3246 n_assembler_options
* sizeof (char *));
3248 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3252 add_linker_option (const char *option
, int len
)
3256 if (! linker_options
)
3257 linker_options
= XNEWVEC (char *, n_linker_options
);
3259 linker_options
= xrealloc (linker_options
,
3260 n_linker_options
* sizeof (char *));
3262 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3265 /* Create the vector `switches' and its contents.
3266 Store its length in `n_switches'. */
3269 process_command (int argc
, const char **argv
)
3274 const char *spec_lang
= 0;
3275 int last_language_n_infiles
;
3276 int lang_n_infiles
= 0;
3277 #ifdef MODIFY_TARGET_NAME
3278 int is_modify_target_name
;
3282 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3286 added_libraries
= 0;
3288 /* Figure compiler version from version string. */
3290 compiler_version
= temp1
= xstrdup (version_string
);
3292 for (; *temp1
; ++temp1
)
3301 /* If there is a -V or -b option (or both), process it now, before
3302 trying to interpret the rest of the command line.
3303 Use heuristic that all configuration names must have at least
3304 one dash '-'. This allows us to pass options starting with -b. */
3305 if (argc
> 1 && argv
[1][0] == '-'
3306 && (argv
[1][1] == 'V' ||
3307 ((argv
[1][1] == 'b') && (NULL
!= strchr(argv
[1] + 2,'-')))))
3309 const char *new_version
= DEFAULT_TARGET_VERSION
;
3310 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3311 const char *progname
= argv
[0];
3316 while (argc
> 1 && argv
[1][0] == '-'
3317 && (argv
[1][1] == 'V' ||
3318 ((argv
[1][1] == 'b') && ( NULL
!= strchr(argv
[1] + 2,'-')))))
3320 char opt
= argv
[1][1];
3322 if (argv
[1][2] != '\0')
3335 fatal ("'-%c' option must have argument", opt
);
3342 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3343 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3345 new_argv0
= xmemdup (progname
, baselen
,
3346 baselen
+ concat_length (new_version
, new_machine
,
3347 "-gcc-", NULL
) + 1);
3348 strcpy (new_argv0
+ baselen
, new_machine
);
3349 strcat (new_argv0
, "-gcc-");
3350 strcat (new_argv0
, new_version
);
3352 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3353 (argc
+ 1) * sizeof (argv
[0]));
3354 new_argv
[0] = new_argv0
;
3356 execvp (new_argv0
, new_argv
);
3357 fatal ("couldn't run '%s': %s", new_argv0
, xstrerror (errno
));
3360 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3361 see if we can create it from the pathname specified in argv[0]. */
3363 gcc_libexec_prefix
= standard_libexec_prefix
;
3365 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3366 if (!gcc_exec_prefix
)
3368 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3369 standard_exec_prefix
);
3370 gcc_libexec_prefix
= make_relative_prefix (argv
[0],
3371 standard_bindir_prefix
,
3372 standard_libexec_prefix
);
3373 if (gcc_exec_prefix
)
3374 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3378 /* make_relative_prefix requires a program name, but
3379 GCC_EXEC_PREFIX is typically a directory name with a trailing
3380 / (which is ignored by make_relative_prefix), so append a
3382 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3383 gcc_libexec_prefix
= make_relative_prefix (tmp_prefix
,
3384 standard_exec_prefix
,
3385 standard_libexec_prefix
);
3391 if (gcc_exec_prefix
)
3393 int len
= strlen (gcc_exec_prefix
);
3395 if (len
> (int) sizeof ("/lib/gcc/") - 1
3396 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3398 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3399 if (IS_DIR_SEPARATOR (*temp
)
3400 && strncmp (temp
+ 1, "lib", 3) == 0
3401 && IS_DIR_SEPARATOR (temp
[4])
3402 && strncmp (temp
+ 5, "gcc", 3) == 0)
3403 len
-= sizeof ("/lib/gcc/") - 1;
3406 set_std_prefix (gcc_exec_prefix
, len
);
3407 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3408 PREFIX_PRIORITY_LAST
, 0, 0);
3409 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3410 PREFIX_PRIORITY_LAST
, 0, 0);
3413 /* COMPILER_PATH and LIBRARY_PATH have values
3414 that are lists of directory names with colons. */
3416 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3419 const char *startp
, *endp
;
3420 char *nstore
= alloca (strlen (temp
) + 3);
3422 startp
= endp
= temp
;
3425 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3427 strncpy (nstore
, startp
, endp
- startp
);
3429 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3430 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3432 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3433 nstore
[endp
- startp
+ 1] = 0;
3436 nstore
[endp
- startp
] = 0;
3437 add_prefix (&exec_prefixes
, nstore
, 0,
3438 PREFIX_PRIORITY_LAST
, 0, 0);
3439 add_prefix (&include_prefixes
, nstore
, 0,
3440 PREFIX_PRIORITY_LAST
, 0, 0);
3443 endp
= startp
= endp
+ 1;
3450 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3451 if (temp
&& *cross_compile
== '0')
3453 const char *startp
, *endp
;
3454 char *nstore
= alloca (strlen (temp
) + 3);
3456 startp
= endp
= temp
;
3459 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3461 strncpy (nstore
, startp
, endp
- startp
);
3463 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3464 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3466 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3467 nstore
[endp
- startp
+ 1] = 0;
3470 nstore
[endp
- startp
] = 0;
3471 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3472 PREFIX_PRIORITY_LAST
, 0, 1);
3475 endp
= startp
= endp
+ 1;
3482 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3483 GET_ENVIRONMENT (temp
, "LPATH");
3484 if (temp
&& *cross_compile
== '0')
3486 const char *startp
, *endp
;
3487 char *nstore
= alloca (strlen (temp
) + 3);
3489 startp
= endp
= temp
;
3492 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3494 strncpy (nstore
, startp
, endp
- startp
);
3496 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3497 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3499 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3500 nstore
[endp
- startp
+ 1] = 0;
3503 nstore
[endp
- startp
] = 0;
3504 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3505 PREFIX_PRIORITY_LAST
, 0, 1);
3508 endp
= startp
= endp
+ 1;
3515 /* Convert new-style -- options to old-style. */
3516 translate_options (&argc
, (const char *const **) &argv
);
3518 /* Do language-specific adjustment/addition of flags. */
3519 lang_specific_driver (&argc
, (const char *const **) &argv
, &added_libraries
);
3521 /* Scan argv twice. Here, the first time, just count how many switches
3522 there will be in their vector, and how many input files in theirs.
3523 Here we also parse the switches that cc itself uses (e.g. -v). */
3525 for (i
= 1; i
< argc
; i
++)
3527 if (! strcmp (argv
[i
], "-dumpspecs"))
3529 struct spec_list
*sl
;
3531 for (sl
= specs
; sl
; sl
= sl
->next
)
3532 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3533 if (link_command_spec
)
3534 printf ("*link_command:\n%s\n\n", link_command_spec
);
3537 else if (! strcmp (argv
[i
], "-dumpversion"))
3539 printf ("%s\n", spec_version
);
3542 else if (! strcmp (argv
[i
], "-dumpmachine"))
3544 printf ("%s\n", spec_machine
);
3547 else if (strcmp (argv
[i
], "-fversion") == 0)
3549 /* translate_options () has turned --version into -fversion. */
3550 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3551 printf ("Copyright %s 2006 Free Software Foundation, Inc.\n",
3553 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3554 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3558 else if (strcmp (argv
[i
], "-fhelp") == 0)
3560 /* translate_options () has turned --help into -fhelp. */
3561 print_help_list
= 1;
3563 /* We will be passing a dummy file on to the sub-processes. */
3567 /* CPP driver cannot obtain switch from cc1_options. */
3569 add_preprocessor_option ("--help", 6);
3570 add_assembler_option ("--help", 6);
3571 add_linker_option ("--help", 6);
3573 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3575 /* translate_options() has turned --target-help into -ftarget-help. */
3576 target_help_flag
= 1;
3578 /* We will be passing a dummy file on to the sub-processes. */
3582 /* CPP driver cannot obtain switch from cc1_options. */
3584 add_preprocessor_option ("--target-help", 13);
3585 add_assembler_option ("--target-help", 13);
3586 add_linker_option ("--target-help", 13);
3588 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3590 pass_exit_codes
= 1;
3593 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3594 print_search_dirs
= 1;
3595 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3596 print_file_name
= "libgcc.a";
3597 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3598 print_file_name
= argv
[i
] + 17;
3599 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3600 print_prog_name
= argv
[i
] + 17;
3601 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3602 print_multi_lib
= 1;
3603 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3604 print_multi_directory
= 1;
3605 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3606 print_multi_os_directory
= 1;
3607 else if (! strncmp (argv
[i
], "-Wa,", 4))
3610 /* Pass the rest of this option to the assembler. */
3612 /* Split the argument at commas. */
3614 for (j
= 4; argv
[i
][j
]; j
++)
3615 if (argv
[i
][j
] == ',')
3617 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3621 /* Record the part after the last comma. */
3622 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3624 else if (! strncmp (argv
[i
], "-Wp,", 4))
3627 /* Pass the rest of this option to the preprocessor. */
3629 /* Split the argument at commas. */
3631 for (j
= 4; argv
[i
][j
]; j
++)
3632 if (argv
[i
][j
] == ',')
3634 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3638 /* Record the part after the last comma. */
3639 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3641 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3642 /* The +e options to the C++ front-end. */
3644 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3647 /* Split the argument at commas. */
3648 for (j
= 3; argv
[i
][j
]; j
++)
3649 n_infiles
+= (argv
[i
][j
] == ',');
3651 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3654 fatal ("argument to '-Xlinker' is missing");
3659 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3662 fatal ("argument to '-Xpreprocessor' is missing");
3664 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3666 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3669 fatal ("argument to '-Xassembler' is missing");
3671 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3673 else if (strcmp (argv
[i
], "-l") == 0)
3676 fatal ("argument to '-l' is missing");
3681 else if (strncmp (argv
[i
], "-l", 2) == 0)
3683 else if (strcmp (argv
[i
], "-save-temps") == 0)
3685 save_temps_flag
= 1;
3688 else if (strcmp (argv
[i
], "-combine") == 0)
3693 else if (strcmp (argv
[i
], "-specs") == 0)
3695 struct user_specs
*user
= XNEW (struct user_specs
);
3697 fatal ("argument to '-specs' is missing");
3699 user
->next
= (struct user_specs
*) 0;
3700 user
->filename
= argv
[i
];
3701 if (user_specs_tail
)
3702 user_specs_tail
->next
= user
;
3704 user_specs_head
= user
;
3705 user_specs_tail
= user
;
3707 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3709 struct user_specs
*user
= XNEW (struct user_specs
);
3710 if (strlen (argv
[i
]) == 7)
3711 fatal ("argument to '-specs=' is missing");
3713 user
->next
= (struct user_specs
*) 0;
3714 user
->filename
= argv
[i
] + 7;
3715 if (user_specs_tail
)
3716 user_specs_tail
->next
= user
;
3718 user_specs_head
= user
;
3719 user_specs_tail
= user
;
3721 else if (strcmp (argv
[i
], "-time") == 0)
3723 else if (strcmp (argv
[i
], "-pipe") == 0)
3725 /* -pipe has to go into the switches array as well as
3730 else if (strcmp (argv
[i
], "-###") == 0)
3732 /* This is similar to -v except that there is no execution
3733 of the commands and the echoed arguments are quoted. It
3734 is intended for use in shell scripts to capture the
3735 driver-generated command line. */
3736 verbose_only_flag
++;
3739 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3741 const char *p
= &argv
[i
][1];
3747 if (NULL
== strchr(argv
[i
] + 2, '-'))
3752 fatal ("'-%c' must come at the start of the command line", c
);
3760 if (p
[1] == 0 && i
+ 1 == argc
)
3761 fatal ("argument to '-B' is missing");
3767 len
= strlen (value
);
3769 /* Catch the case where the user has forgotten to append a
3770 directory separator to the path. Note, they may be using
3771 -B to add an executable name prefix, eg "i386-elf-", in
3772 order to distinguish between multiple installations of
3773 GCC in the same directory. Hence we must check to see
3774 if appending a directory separator actually makes a
3775 valid directory name. */
3776 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3777 && is_directory (value
, false))
3779 char *tmp
= XNEWVEC (char, len
+ 2);
3780 strcpy (tmp
, value
);
3781 tmp
[len
] = DIR_SEPARATOR
;
3786 /* As a kludge, if the arg is "[foo/]stageN/", just
3787 add "[foo/]include" to the include prefix. */
3790 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3791 && strncmp (value
+ len
- 7, "stage", 5) == 0
3792 && ISDIGIT (value
[len
- 2])
3793 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3796 add_prefix (&include_prefixes
, "./", NULL
,
3797 PREFIX_PRIORITY_B_OPT
, 0, 0);
3800 char *string
= xmalloc (len
- 6);
3801 memcpy (string
, value
, len
- 7);
3802 string
[len
- 7] = 0;
3803 add_prefix (&include_prefixes
, string
, NULL
,
3804 PREFIX_PRIORITY_B_OPT
, 0, 0);
3808 add_prefix (&exec_prefixes
, value
, NULL
,
3809 PREFIX_PRIORITY_B_OPT
, 0, 0);
3810 add_prefix (&startfile_prefixes
, value
, NULL
,
3811 PREFIX_PRIORITY_B_OPT
, 0, 0);
3812 add_prefix (&include_prefixes
, value
, NULL
,
3813 PREFIX_PRIORITY_B_OPT
, 0, 0);
3818 case 'v': /* Print our subcommands and print versions. */
3820 /* If they do anything other than exactly `-v', don't set
3821 verbose_flag; rather, continue on to give the error. */
3839 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3844 /* Forward scan, just in case -S or -c is specified
3851 if (argv
[j
][0] == '-')
3853 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3859 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3860 j
+= skip
- (argv
[j
][2] != 0);
3861 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3868 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3870 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3872 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3879 #ifdef MODIFY_TARGET_NAME
3880 is_modify_target_name
= 0;
3882 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3883 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3885 char *new_name
= xmalloc (strlen (modify_target
[j
].str
)
3886 + strlen (spec_machine
));
3889 int made_addition
= 0;
3891 is_modify_target_name
= 1;
3892 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3894 if (modify_target
[j
].add_del
== DELETE
3895 && (! strncmp (q
, modify_target
[j
].str
,
3896 strlen (modify_target
[j
].str
))))
3897 p
+= strlen (modify_target
[j
].str
);
3898 else if (modify_target
[j
].add_del
== ADD
3899 && ! made_addition
&& *p
== '-')
3901 for (r
= modify_target
[j
].str
; *r
!= 0; )
3909 spec_machine
= new_name
;
3912 if (is_modify_target_name
)
3918 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3919 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3920 else if (WORD_SWITCH_TAKES_ARG (p
))
3921 i
+= WORD_SWITCH_TAKES_ARG (p
);
3931 if (save_temps_flag
&& use_pipes
)
3933 /* -save-temps overrides -pipe, so that temp files are produced */
3934 if (save_temps_flag
)
3935 error ("warning: -pipe ignored because -save-temps specified");
3939 /* Set up the search paths before we go looking for config files. */
3941 /* These come before the md prefixes so that we will find gcc's subcommands
3942 (such as cpp) rather than those of the host system. */
3943 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3944 as well as trying the machine and the version. */
3946 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3947 PREFIX_PRIORITY_LAST
, 1, 0);
3948 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3949 PREFIX_PRIORITY_LAST
, 2, 0);
3950 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3951 PREFIX_PRIORITY_LAST
, 2, 0);
3952 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3953 PREFIX_PRIORITY_LAST
, 2, 0);
3954 add_prefix (&exec_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3955 PREFIX_PRIORITY_LAST
, 2, 0);
3958 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3959 PREFIX_PRIORITY_LAST
, 1, 0);
3960 add_prefix (&startfile_prefixes
, standard_exec_prefix_2
, "BINUTILS",
3961 PREFIX_PRIORITY_LAST
, 1, 0);
3963 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3964 dir_separator_str
, NULL
);
3966 /* If tooldir is relative, base it on exec_prefixes. A relative
3967 tooldir lets us move the installed tree as a unit.
3969 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3970 directories, so that we can search both the user specified directory
3971 and the standard place. */
3973 if (!IS_ABSOLUTE_PATH (tooldir_prefix
))
3975 if (gcc_exec_prefix
)
3977 char *gcc_exec_tooldir_prefix
3978 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3979 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3981 add_prefix (&exec_prefixes
,
3982 concat (gcc_exec_tooldir_prefix
, "bin",
3983 dir_separator_str
, NULL
),
3984 NULL
, PREFIX_PRIORITY_LAST
, 0, 0);
3985 add_prefix (&startfile_prefixes
,
3986 concat (gcc_exec_tooldir_prefix
, "lib",
3987 dir_separator_str
, NULL
),
3988 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
3991 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3992 dir_separator_str
, spec_version
,
3993 dir_separator_str
, tooldir_prefix
, NULL
);
3996 add_prefix (&exec_prefixes
,
3997 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3998 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3999 add_prefix (&startfile_prefixes
,
4000 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4001 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4003 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4004 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4005 then consider it to relocate with the rest of the GCC installation
4006 if GCC_EXEC_PREFIX is set.
4007 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4008 if (target_system_root
&& gcc_exec_prefix
)
4010 char *tmp_prefix
= make_relative_prefix (argv
[0],
4011 standard_bindir_prefix
,
4012 target_system_root
);
4013 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4015 target_system_root
= tmp_prefix
;
4016 target_system_root_changed
= 1;
4021 /* More prefixes are enabled in main, after we read the specs file
4022 and determine whether this is cross-compilation or not. */
4024 /* Then create the space for the vectors and scan again. */
4026 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4027 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4030 last_language_n_infiles
= -1;
4032 /* This, time, copy the text of each switch and store a pointer
4033 to the copy in the vector of switches.
4034 Store all the infiles in their vector. */
4036 for (i
= 1; i
< argc
; i
++)
4038 /* Just skip the switches that were handled by the preceding loop. */
4039 #ifdef MODIFY_TARGET_NAME
4040 is_modify_target_name
= 0;
4042 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4043 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4044 is_modify_target_name
= 1;
4046 if (is_modify_target_name
)
4050 if (! strncmp (argv
[i
], "-Wa,", 4))
4052 else if (! strncmp (argv
[i
], "-Wp,", 4))
4054 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4056 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4058 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4060 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4062 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4064 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4066 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4068 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4070 else if (! strcmp (argv
[i
], "-ftarget-help"))
4072 else if (! strcmp (argv
[i
], "-fhelp"))
4074 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4076 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4077 target_system_root_changed
= 1;
4079 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4081 /* Compensate for the +e options to the C++ front-end;
4082 they're there simply for cfront call-compatibility. We do
4083 some magic in default_compilers to pass them down properly.
4084 Note we deliberately start at the `+' here, to avoid passing
4085 -e0 or -e1 down into the linker. */
4086 switches
[n_switches
].part1
= &argv
[i
][0];
4087 switches
[n_switches
].args
= 0;
4088 switches
[n_switches
].live_cond
= SWITCH_OK
;
4089 switches
[n_switches
].validated
= 0;
4092 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4095 /* Split the argument at commas. */
4097 for (j
= 4; argv
[i
][j
]; j
++)
4098 if (argv
[i
][j
] == ',')
4100 infiles
[n_infiles
].language
= "*";
4101 infiles
[n_infiles
++].name
4102 = save_string (argv
[i
] + prev
, j
- prev
);
4105 /* Record the part after the last comma. */
4106 infiles
[n_infiles
].language
= "*";
4107 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4109 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4111 infiles
[n_infiles
].language
= "*";
4112 infiles
[n_infiles
++].name
= argv
[++i
];
4114 /* Xassembler and Xpreprocessor were already handled in the first argv
4115 scan, so all we need to do here is ignore them and their argument. */
4116 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4118 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4120 else if (strcmp (argv
[i
], "-l") == 0)
4121 { /* POSIX allows separation of -l and the lib arg;
4122 canonicalize by concatenating -l with its arg */
4123 infiles
[n_infiles
].language
= "*";
4124 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4126 else if (strncmp (argv
[i
], "-l", 2) == 0)
4128 infiles
[n_infiles
].language
= "*";
4129 infiles
[n_infiles
++].name
= argv
[i
];
4131 else if (strcmp (argv
[i
], "-specs") == 0)
4133 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4135 else if (strcmp (argv
[i
], "-time") == 0)
4137 else if (strcmp (argv
[i
], "-###") == 0)
4139 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4141 const char *p
= &argv
[i
][1];
4146 if (p
[1] == 0 && i
+ 1 == argc
)
4147 fatal ("argument to '-x' is missing");
4149 spec_lang
= argv
[++i
];
4152 if (! strcmp (spec_lang
, "none"))
4153 /* Suppress the warning if -xnone comes after the last input
4154 file, because alternate command interfaces like g++ might
4155 find it useful to place -xnone after each input file. */
4158 last_language_n_infiles
= n_infiles
;
4161 switches
[n_switches
].part1
= p
;
4162 /* Deal with option arguments in separate argv elements. */
4163 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4164 || WORD_SWITCH_TAKES_ARG (p
))
4167 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4171 /* Count only the option arguments in separate argv elements. */
4172 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4174 if (i
+ n_args
>= argc
)
4175 fatal ("argument to '-%s' is missing", p
);
4176 switches
[n_switches
].args
4177 = XNEWVEC (const char *, n_args
+ 1);
4179 switches
[n_switches
].args
[j
++] = argv
[++i
];
4180 /* Null-terminate the vector. */
4181 switches
[n_switches
].args
[j
] = 0;
4183 else if (strchr (switches_need_spaces
, c
))
4185 /* On some systems, ld cannot handle some options without
4186 a space. So split the option from its argument. */
4187 char *part1
= XNEWVEC (char, 2);
4191 switches
[n_switches
].part1
= part1
;
4192 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4193 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4194 switches
[n_switches
].args
[1] = 0;
4197 switches
[n_switches
].args
= 0;
4199 switches
[n_switches
].live_cond
= SWITCH_OK
;
4200 switches
[n_switches
].validated
= 0;
4201 switches
[n_switches
].ordering
= 0;
4202 /* These are always valid, since gcc.c itself understands them. */
4203 if (!strcmp (p
, "save-temps")
4204 || !strcmp (p
, "static-libgcc")
4205 || !strcmp (p
, "shared-libgcc")
4206 || !strcmp (p
, "pipe"))
4207 switches
[n_switches
].validated
= 1;
4210 char ch
= switches
[n_switches
].part1
[0];
4212 switches
[n_switches
].validated
= 1;
4218 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4219 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4222 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4224 perror_with_name (argv
[i
]);
4229 infiles
[n_infiles
].language
= spec_lang
;
4230 infiles
[n_infiles
++].name
= argv
[i
];
4235 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4236 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4238 /* Ensure we only invoke each subprocess once. */
4239 if (target_help_flag
|| print_help_list
)
4243 /* Create a dummy input file, so that we can pass --target-help on to
4244 the various sub-processes. */
4245 infiles
[0].language
= "c";
4246 infiles
[0].name
= "help-dummy";
4248 if (target_help_flag
)
4250 switches
[n_switches
].part1
= "--target-help";
4251 switches
[n_switches
].args
= 0;
4252 switches
[n_switches
].live_cond
= SWITCH_OK
;
4253 switches
[n_switches
].validated
= 0;
4258 if (print_help_list
)
4260 switches
[n_switches
].part1
= "--help";
4261 switches
[n_switches
].args
= 0;
4262 switches
[n_switches
].live_cond
= SWITCH_OK
;
4263 switches
[n_switches
].validated
= 0;
4269 switches
[n_switches
].part1
= 0;
4270 infiles
[n_infiles
].name
= 0;
4273 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4274 and place that in the environment. */
4277 set_collect_gcc_options (void)
4282 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4284 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4285 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4288 for (i
= 0; (int) i
< n_switches
; i
++)
4290 const char *const *args
;
4293 obstack_grow (&collect_obstack
, " ", 1);
4297 /* Ignore elided switches. */
4298 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4301 obstack_grow (&collect_obstack
, "'-", 2);
4302 q
= switches
[i
].part1
;
4303 while ((p
= strchr (q
, '\'')))
4305 obstack_grow (&collect_obstack
, q
, p
- q
);
4306 obstack_grow (&collect_obstack
, "'\\''", 4);
4309 obstack_grow (&collect_obstack
, q
, strlen (q
));
4310 obstack_grow (&collect_obstack
, "'", 1);
4312 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4314 obstack_grow (&collect_obstack
, " '", 2);
4316 while ((p
= strchr (q
, '\'')))
4318 obstack_grow (&collect_obstack
, q
, p
- q
);
4319 obstack_grow (&collect_obstack
, "'\\''", 4);
4322 obstack_grow (&collect_obstack
, q
, strlen (q
));
4323 obstack_grow (&collect_obstack
, "'", 1);
4326 obstack_grow (&collect_obstack
, "\0", 1);
4327 putenv (XOBFINISH (&collect_obstack
, char *));
4330 /* Process a spec string, accumulating and running commands. */
4332 /* These variables describe the input file name.
4333 input_file_number is the index on outfiles of this file,
4334 so that the output file name can be stored for later use by %o.
4335 input_basename is the start of the part of the input file
4336 sans all directory names, and basename_length is the number
4337 of characters starting there excluding the suffix .c or whatever. */
4339 static const char *input_filename
;
4340 static int input_file_number
;
4341 size_t input_filename_length
;
4342 static int basename_length
;
4343 static int suffixed_basename_length
;
4344 static const char *input_basename
;
4345 static const char *input_suffix
;
4346 #ifndef HOST_LACKS_INODE_NUMBERS
4347 static struct stat input_stat
;
4349 static int input_stat_set
;
4351 /* The compiler used to process the current input file. */
4352 static struct compiler
*input_file_compiler
;
4354 /* These are variables used within do_spec and do_spec_1. */
4356 /* Nonzero if an arg has been started and not yet terminated
4357 (with space, tab or newline). */
4358 static int arg_going
;
4360 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4361 is a temporary file name. */
4362 static int delete_this_arg
;
4364 /* Nonzero means %w has been seen; the next arg to be terminated
4365 is the output file name of this compilation. */
4366 static int this_is_output_file
;
4368 /* Nonzero means %s has been seen; the next arg to be terminated
4369 is the name of a library file and we should try the standard
4370 search dirs for it. */
4371 static int this_is_library_file
;
4373 /* Nonzero means that the input of this command is coming from a pipe. */
4374 static int input_from_pipe
;
4376 /* Nonnull means substitute this for any suffix when outputting a switches
4378 static const char *suffix_subst
;
4380 /* Process the spec SPEC and run the commands specified therein.
4381 Returns 0 if the spec is successfully processed; -1 if failed. */
4384 do_spec (const char *spec
)
4388 value
= do_spec_2 (spec
);
4390 /* Force out any unfinished command.
4391 If -pipe, this forces out the last command if it ended in `|'. */
4394 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4397 set_collect_gcc_options ();
4399 if (argbuf_index
> 0)
4407 do_spec_2 (const char *spec
)
4414 delete_this_arg
= 0;
4415 this_is_output_file
= 0;
4416 this_is_library_file
= 0;
4417 input_from_pipe
= 0;
4418 suffix_subst
= NULL
;
4420 result
= do_spec_1 (spec
, 0, NULL
);
4422 /* End any pending argument. */
4425 obstack_1grow (&obstack
, 0);
4426 string
= XOBFINISH (&obstack
, const char *);
4427 if (this_is_library_file
)
4428 string
= find_file (string
);
4429 store_arg (string
, delete_this_arg
, this_is_output_file
);
4430 if (this_is_output_file
)
4431 outfiles
[input_file_number
] = string
;
4439 /* Process the given spec string and add any new options to the end
4440 of the switches/n_switches array. */
4443 do_option_spec (const char *name
, const char *spec
)
4445 unsigned int i
, value_count
, value_len
;
4446 const char *p
, *q
, *value
;
4447 char *tmp_spec
, *tmp_spec_p
;
4449 if (configure_default_options
[0].name
== NULL
)
4452 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4453 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4455 if (i
== ARRAY_SIZE (configure_default_options
))
4458 value
= configure_default_options
[i
].value
;
4459 value_len
= strlen (value
);
4461 /* Compute the size of the final spec. */
4464 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4470 /* Replace each %(VALUE) by the specified value. */
4471 tmp_spec
= alloca (strlen (spec
) + 1
4472 + value_count
* (value_len
- strlen ("%(VALUE)")));
4473 tmp_spec_p
= tmp_spec
;
4475 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4477 memcpy (tmp_spec_p
, q
, p
- q
);
4478 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4479 memcpy (tmp_spec_p
, value
, value_len
);
4480 tmp_spec_p
+= value_len
;
4481 q
= p
+ strlen ("%(VALUE)");
4483 strcpy (tmp_spec_p
, q
);
4485 do_self_spec (tmp_spec
);
4488 /* Process the given spec string and add any new options to the end
4489 of the switches/n_switches array. */
4492 do_self_spec (const char *spec
)
4495 do_spec_1 (" ", 0, NULL
);
4497 if (argbuf_index
> 0)
4502 n_switches
+= argbuf_index
;
4503 switches
= xrealloc (switches
,
4504 sizeof (struct switchstr
) * (n_switches
+ 1));
4506 switches
[n_switches
] = switches
[first
];
4507 for (i
= 0; i
< argbuf_index
; i
++)
4509 struct switchstr
*sw
;
4511 /* Each switch should start with '-'. */
4512 if (argbuf
[i
][0] != '-')
4513 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4515 sw
= &switches
[i
+ first
];
4516 sw
->part1
= &argbuf
[i
][1];
4518 sw
->live_cond
= SWITCH_OK
;
4525 /* Callback for processing %D and %I specs. */
4527 struct spec_path_info
{
4532 bool separate_options
;
4536 spec_path (char *path
, void *data
)
4538 struct spec_path_info
*info
= data
;
4542 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4545 if (info
->append_len
!= 0)
4547 len
= strlen (path
);
4548 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4551 if (!is_directory (path
, true))
4554 do_spec_1 (info
->option
, 1, NULL
);
4555 if (info
->separate_options
)
4556 do_spec_1 (" ", 0, NULL
);
4558 if (info
->append_len
== 0)
4560 len
= strlen (path
);
4561 save
= path
[len
- 1];
4562 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4563 path
[len
- 1] = '\0';
4566 do_spec_1 (path
, 1, NULL
);
4567 do_spec_1 (" ", 0, NULL
);
4569 /* Must not damage the original path. */
4570 if (info
->append_len
== 0)
4571 path
[len
- 1] = save
;
4576 /* Process the sub-spec SPEC as a portion of a larger spec.
4577 This is like processing a whole spec except that we do
4578 not initialize at the beginning and we do not supply a
4579 newline by default at the end.
4580 INSWITCH nonzero means don't process %-sequences in SPEC;
4581 in this case, % is treated as an ordinary character.
4582 This is used while substituting switches.
4583 INSWITCH nonzero also causes SPC not to terminate an argument.
4585 Value is zero unless a line was finished
4586 and the command on that line reported an error. */
4589 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4591 const char *p
= spec
;
4598 /* If substituting a switch, treat all chars like letters.
4599 Otherwise, NL, SPC, TAB and % are special. */
4600 switch (inswitch
? 'a' : c
)
4603 /* End of line: finish any pending argument,
4604 then run the pending command if one has been started. */
4607 obstack_1grow (&obstack
, 0);
4608 string
= XOBFINISH (&obstack
, const char *);
4609 if (this_is_library_file
)
4610 string
= find_file (string
);
4611 store_arg (string
, delete_this_arg
, this_is_output_file
);
4612 if (this_is_output_file
)
4613 outfiles
[input_file_number
] = string
;
4617 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4619 /* A `|' before the newline means use a pipe here,
4620 but only if -pipe was specified.
4621 Otherwise, execute now and don't pass the `|' as an arg. */
4624 input_from_pipe
= 1;
4631 set_collect_gcc_options ();
4633 if (argbuf_index
> 0)
4639 /* Reinitialize for a new command, and for a new argument. */
4642 delete_this_arg
= 0;
4643 this_is_output_file
= 0;
4644 this_is_library_file
= 0;
4645 input_from_pipe
= 0;
4649 /* End any pending argument. */
4652 obstack_1grow (&obstack
, 0);
4653 string
= XOBFINISH (&obstack
, const char *);
4654 if (this_is_library_file
)
4655 string
= find_file (string
);
4656 store_arg (string
, delete_this_arg
, this_is_output_file
);
4657 if (this_is_output_file
)
4658 outfiles
[input_file_number
] = string
;
4662 obstack_1grow (&obstack
, c
);
4668 /* Space or tab ends an argument if one is pending. */
4671 obstack_1grow (&obstack
, 0);
4672 string
= XOBFINISH (&obstack
, const char *);
4673 if (this_is_library_file
)
4674 string
= find_file (string
);
4675 store_arg (string
, delete_this_arg
, this_is_output_file
);
4676 if (this_is_output_file
)
4677 outfiles
[input_file_number
] = string
;
4679 /* Reinitialize for a new argument. */
4681 delete_this_arg
= 0;
4682 this_is_output_file
= 0;
4683 this_is_library_file
= 0;
4690 fatal ("spec '%s' invalid", spec
);
4693 obstack_grow (&obstack
, input_basename
, basename_length
);
4698 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4703 delete_this_arg
= 2;
4706 /* Dump out the directories specified with LIBRARY_PATH,
4707 followed by the absolute directories
4708 that we search for startfiles. */
4711 struct spec_path_info info
;
4714 info
.append_len
= 0;
4715 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4716 /* Used on systems which record the specified -L dirs
4717 and use them to search for dynamic linking.
4718 Relative directories always come from -B,
4719 and it is better not to use them for searching
4720 at run time. In particular, stage1 loses. */
4721 info
.omit_relative
= true;
4723 info
.omit_relative
= false;
4725 info
.separate_options
= false;
4727 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4732 /* %efoo means report an error with `foo' as error message
4733 and don't execute any more commands for this file. */
4737 while (*p
!= 0 && *p
!= '\n')
4739 buf
= alloca (p
- q
+ 1);
4740 strncpy (buf
, q
, p
- q
);
4747 /* %nfoo means report a notice with `foo' on stderr. */
4751 while (*p
!= 0 && *p
!= '\n')
4753 buf
= alloca (p
- q
+ 1);
4754 strncpy (buf
, q
, p
- q
);
4756 notice ("%s\n", buf
);
4766 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4767 defined, and it is not a directory, and it is
4768 writable, use it. Otherwise, treat this like any
4769 other temporary file. */
4771 if ((!save_temps_flag
)
4772 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4773 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4775 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4776 strlen (HOST_BIT_BUCKET
));
4777 delete_this_arg
= 0;
4782 goto create_temp_file
;
4786 obstack_1grow (&obstack
, '-');
4787 delete_this_arg
= 0;
4790 /* consume suffix */
4791 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4793 if (p
[0] == '%' && p
[1] == 'O')
4798 goto create_temp_file
;
4802 /* consume suffix */
4803 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4805 if (p
[0] == '%' && p
[1] == 'O')
4810 goto create_temp_file
;
4816 struct temp_name
*t
;
4818 const char *suffix
= p
;
4819 char *saved_suffix
= NULL
;
4821 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4823 suffix_length
= p
- suffix
;
4824 if (p
[0] == '%' && p
[1] == 'O')
4827 /* We don't support extra suffix characters after %O. */
4828 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4829 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
4830 if (suffix_length
== 0)
4831 suffix
= TARGET_OBJECT_SUFFIX
;
4835 = XNEWVEC (char, suffix_length
4836 + strlen (TARGET_OBJECT_SUFFIX
));
4837 strncpy (saved_suffix
, suffix
, suffix_length
);
4838 strcpy (saved_suffix
+ suffix_length
,
4839 TARGET_OBJECT_SUFFIX
);
4841 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4844 /* If the input_filename has the same suffix specified
4845 for the %g, %u, or %U, and -save-temps is specified,
4846 we could end up using that file as an intermediate
4847 thus clobbering the user's source file (.e.g.,
4848 gcc -save-temps foo.s would clobber foo.s with the
4849 output of cpp0). So check for this condition and
4850 generate a temp file as the intermediate. */
4852 if (save_temps_flag
)
4854 temp_filename_length
= basename_length
+ suffix_length
;
4855 temp_filename
= alloca (temp_filename_length
+ 1);
4856 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4857 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4859 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4860 if (strcmp (temp_filename
, input_filename
) != 0)
4862 #ifndef HOST_LACKS_INODE_NUMBERS
4863 struct stat st_temp
;
4865 /* Note, set_input() resets input_stat_set to 0. */
4866 if (input_stat_set
== 0)
4868 input_stat_set
= stat (input_filename
, &input_stat
);
4869 if (input_stat_set
>= 0)
4873 /* If we have the stat for the input_filename
4874 and we can do the stat for the temp_filename
4875 then the they could still refer to the same
4876 file if st_dev/st_ino's are the same. */
4877 if (input_stat_set
!= 1
4878 || stat (temp_filename
, &st_temp
) < 0
4879 || input_stat
.st_dev
!= st_temp
.st_dev
4880 || input_stat
.st_ino
!= st_temp
.st_ino
)
4882 /* Just compare canonical pathnames. */
4883 char* input_realname
= lrealpath (input_filename
);
4884 char* temp_realname
= lrealpath (temp_filename
);
4885 bool files_differ
= strcmp (input_realname
, temp_realname
);
4886 free (input_realname
);
4887 free (temp_realname
);
4891 temp_filename
= save_string (temp_filename
,
4892 temp_filename_length
+ 1);
4893 obstack_grow (&obstack
, temp_filename
,
4894 temp_filename_length
);
4896 delete_this_arg
= 0;
4902 /* See if we already have an association of %g/%u/%U and
4904 for (t
= temp_names
; t
; t
= t
->next
)
4905 if (t
->length
== suffix_length
4906 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4907 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4910 /* Make a new association if needed. %u and %j
4912 if (t
== 0 || c
== 'u' || c
== 'j')
4916 t
= xmalloc (sizeof (struct temp_name
));
4917 t
->next
= temp_names
;
4920 t
->length
= suffix_length
;
4923 t
->suffix
= saved_suffix
;
4924 saved_suffix
= NULL
;
4927 t
->suffix
= save_string (suffix
, suffix_length
);
4928 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4929 temp_filename
= make_temp_file (t
->suffix
);
4930 temp_filename_length
= strlen (temp_filename
);
4931 t
->filename
= temp_filename
;
4932 t
->filename_length
= temp_filename_length
;
4936 free (saved_suffix
);
4938 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4939 delete_this_arg
= 1;
4947 for (i
= 0; (int) i
< n_infiles
; i
++)
4948 if ((!infiles
[i
].language
) || (infiles
[i
].language
[0] != '*'))
4949 if (infiles
[i
].incompiler
== input_file_compiler
)
4951 store_arg (infiles
[i
].name
, 0, 0);
4952 infiles
[i
].compiled
= true;
4957 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4964 struct spec_path_info info
;
4968 do_spec_1 ("-imultilib", 1, NULL
);
4969 /* Make this a separate argument. */
4970 do_spec_1 (" ", 0, NULL
);
4971 do_spec_1 (multilib_dir
, 1, NULL
);
4972 do_spec_1 (" ", 0, NULL
);
4975 if (gcc_exec_prefix
)
4977 do_spec_1 ("-iprefix", 1, NULL
);
4978 /* Make this a separate argument. */
4979 do_spec_1 (" ", 0, NULL
);
4980 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4981 do_spec_1 (" ", 0, NULL
);
4984 if (target_system_root_changed
||
4985 (target_system_root
&& target_sysroot_hdrs_suffix
))
4987 do_spec_1 ("-isysroot", 1, NULL
);
4988 /* Make this a separate argument. */
4989 do_spec_1 (" ", 0, NULL
);
4990 do_spec_1 (target_system_root
, 1, NULL
);
4991 if (target_sysroot_hdrs_suffix
)
4992 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4993 do_spec_1 (" ", 0, NULL
);
4996 info
.option
= "-isystem";
4997 info
.append
= "include";
4998 info
.append_len
= strlen (info
.append
);
4999 info
.omit_relative
= false;
5000 info
.separate_options
= true;
5002 for_each_path (&include_prefixes
, false, info
.append_len
,
5009 int max
= n_infiles
;
5010 max
+= lang_specific_extra_outfiles
;
5012 for (i
= 0; i
< max
; i
++)
5014 store_arg (outfiles
[i
], 0, 0);
5019 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5024 this_is_library_file
= 1;
5028 outfiles
[input_file_number
] = NULL
;
5032 this_is_output_file
= 1;
5037 int cur_index
= argbuf_index
;
5038 /* Handle the {...} following the %W. */
5040 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5041 p
= handle_braces (p
+ 1);
5044 /* End any pending argument. */
5047 obstack_1grow (&obstack
, 0);
5048 string
= XOBFINISH (&obstack
, const char *);
5049 if (this_is_library_file
)
5050 string
= find_file (string
);
5051 store_arg (string
, delete_this_arg
, this_is_output_file
);
5052 if (this_is_output_file
)
5053 outfiles
[input_file_number
] = string
;
5056 /* If any args were output, mark the last one for deletion
5058 if (argbuf_index
!= cur_index
)
5059 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5063 /* %x{OPTION} records OPTION for %X to output. */
5069 /* Skip past the option value and make a copy. */
5071 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5074 string
= save_string (p1
+ 1, p
- p1
- 2);
5076 /* See if we already recorded this option. */
5077 for (i
= 0; i
< n_linker_options
; i
++)
5078 if (! strcmp (string
, linker_options
[i
]))
5084 /* This option is new; add it. */
5085 add_linker_option (string
, strlen (string
));
5089 /* Dump out the options accumulated previously using %x. */
5091 for (i
= 0; i
< n_linker_options
; i
++)
5093 do_spec_1 (linker_options
[i
], 1, NULL
);
5094 /* Make each accumulated option a separate argument. */
5095 do_spec_1 (" ", 0, NULL
);
5099 /* Dump out the options accumulated previously using -Wa,. */
5101 for (i
= 0; i
< n_assembler_options
; i
++)
5103 do_spec_1 (assembler_options
[i
], 1, NULL
);
5104 /* Make each accumulated option a separate argument. */
5105 do_spec_1 (" ", 0, NULL
);
5109 /* Dump out the options accumulated previously using -Wp,. */
5111 for (i
= 0; i
< n_preprocessor_options
; i
++)
5113 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5114 /* Make each accumulated option a separate argument. */
5115 do_spec_1 (" ", 0, NULL
);
5119 /* Here are digits and numbers that just process
5120 a certain constant string as a spec. */
5123 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5129 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5135 value
= do_spec_1 (asm_spec
, 0, NULL
);
5141 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5148 const char *const spec
5149 = (input_file_compiler
->cpp_spec
5150 ? input_file_compiler
->cpp_spec
5152 value
= do_spec_1 (spec
, 0, NULL
);
5159 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5165 value
= do_spec_1 (link_spec
, 0, NULL
);
5171 value
= do_spec_1 (lib_spec
, 0, NULL
);
5177 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5183 /* We assume there is a directory
5184 separator at the end of this string. */
5185 if (target_system_root
)
5187 obstack_grow (&obstack
, target_system_root
,
5188 strlen (target_system_root
));
5189 if (target_sysroot_suffix
)
5190 obstack_grow (&obstack
, target_sysroot_suffix
,
5191 strlen (target_sysroot_suffix
));
5196 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5201 /* Here we define characters other than letters and digits. */
5204 p
= handle_braces (p
);
5210 p
= handle_spec_function (p
);
5216 obstack_1grow (&obstack
, '%');
5223 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5225 suffix_subst
= save_string (p
- 1, len
+ 1);
5230 /* Henceforth ignore the option(s) matching the pattern
5235 int have_wildcard
= 0;
5238 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5241 if (p
[len
-1] == '*')
5244 for (i
= 0; i
< n_switches
; i
++)
5245 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5246 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5248 switches
[i
].live_cond
= SWITCH_IGNORE
;
5249 switches
[i
].validated
= 1;
5257 if (soft_matched_part
)
5259 do_spec_1 (soft_matched_part
, 1, NULL
);
5260 do_spec_1 (" ", 0, NULL
);
5263 /* Catch the case where a spec string contains something like
5264 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5265 hand side of the :. */
5266 error ("spec failure: '%%*' has not been initialized by pattern match");
5269 /* Process a string found as the value of a spec given by name.
5270 This feature allows individual machine descriptions
5271 to add and use their own specs.
5272 %[...] modifies -D options the way %P does;
5273 %(...) uses the spec unmodified. */
5275 error ("warning: use of obsolete %%[ operator in specs");
5278 const char *name
= p
;
5279 struct spec_list
*sl
;
5282 /* The string after the S/P is the name of a spec that is to be
5284 while (*p
&& *p
!= ')' && *p
!= ']')
5287 /* See if it's in the list. */
5288 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5289 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5291 name
= *(sl
->ptr_spec
);
5293 notice ("Processing spec %c%s%c, which is '%s'\n",
5294 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5303 value
= do_spec_1 (name
, 0, NULL
);
5309 char *x
= alloca (strlen (name
) * 2 + 1);
5311 const char *y
= name
;
5314 /* Copy all of NAME into BUF, but put __ after
5315 every -D and at the end of each arg. */
5318 if (! strncmp (y
, "-D", 2))
5329 && (*y
== ' ' || *y
== '\t' || *y
== '='
5330 || *y
== '}' || *y
== 0))
5343 value
= do_spec_1 (buf
, 0, NULL
);
5349 /* Discard the closing paren or bracket. */
5356 error ("spec failure: unrecognized spec option '%c'", c
);
5362 /* Backslash: treat next character as ordinary. */
5367 /* Ordinary character: put it into the current argument. */
5368 obstack_1grow (&obstack
, c
);
5372 /* End of string. If we are processing a spec function, we need to
5373 end any pending argument. */
5374 if (processing_spec_function
&& arg_going
)
5376 obstack_1grow (&obstack
, 0);
5377 string
= XOBFINISH (&obstack
, const char *);
5378 if (this_is_library_file
)
5379 string
= find_file (string
);
5380 store_arg (string
, delete_this_arg
, this_is_output_file
);
5381 if (this_is_output_file
)
5382 outfiles
[input_file_number
] = string
;
5389 /* Look up a spec function. */
5391 static const struct spec_function
*
5392 lookup_spec_function (const char *name
)
5394 const struct spec_function
*sf
;
5396 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5397 if (strcmp (sf
->name
, name
) == 0)
5403 /* Evaluate a spec function. */
5406 eval_spec_function (const char *func
, const char *args
)
5408 const struct spec_function
*sf
;
5409 const char *funcval
;
5411 /* Saved spec processing context. */
5412 int save_argbuf_index
;
5413 int save_argbuf_length
;
5414 const char **save_argbuf
;
5417 int save_delete_this_arg
;
5418 int save_this_is_output_file
;
5419 int save_this_is_library_file
;
5420 int save_input_from_pipe
;
5421 const char *save_suffix_subst
;
5424 sf
= lookup_spec_function (func
);
5426 fatal ("unknown spec function '%s'", func
);
5428 /* Push the spec processing context. */
5429 save_argbuf_index
= argbuf_index
;
5430 save_argbuf_length
= argbuf_length
;
5431 save_argbuf
= argbuf
;
5433 save_arg_going
= arg_going
;
5434 save_delete_this_arg
= delete_this_arg
;
5435 save_this_is_output_file
= this_is_output_file
;
5436 save_this_is_library_file
= this_is_library_file
;
5437 save_input_from_pipe
= input_from_pipe
;
5438 save_suffix_subst
= suffix_subst
;
5440 /* Create a new spec processing context, and build the function
5444 if (do_spec_2 (args
) < 0)
5445 fatal ("error in args to spec function '%s'", func
);
5447 /* argbuf_index is an index for the next argument to be inserted, and
5448 so contains the count of the args already inserted. */
5450 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5452 /* Pop the spec processing context. */
5453 argbuf_index
= save_argbuf_index
;
5454 argbuf_length
= save_argbuf_length
;
5456 argbuf
= save_argbuf
;
5458 arg_going
= save_arg_going
;
5459 delete_this_arg
= save_delete_this_arg
;
5460 this_is_output_file
= save_this_is_output_file
;
5461 this_is_library_file
= save_this_is_library_file
;
5462 input_from_pipe
= save_input_from_pipe
;
5463 suffix_subst
= save_suffix_subst
;
5468 /* Handle a spec function call of the form:
5472 ARGS is processed as a spec in a separate context and split into an
5473 argument vector in the normal fashion. The function returns a string
5474 containing a spec which we then process in the caller's context, or
5475 NULL if no processing is required. */
5478 handle_spec_function (const char *p
)
5481 const char *endp
, *funcval
;
5484 processing_spec_function
++;
5486 /* Get the function name. */
5487 for (endp
= p
; *endp
!= '\0'; endp
++)
5489 if (*endp
== '(') /* ) */
5491 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5492 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5493 fatal ("malformed spec function name");
5495 if (*endp
!= '(') /* ) */
5496 fatal ("no arguments for spec function");
5497 func
= save_string (p
, endp
- p
);
5500 /* Get the arguments. */
5501 for (count
= 0; *endp
!= '\0'; endp
++)
5510 else if (*endp
== '(') /* ) */
5515 fatal ("malformed spec function arguments");
5516 args
= save_string (p
, endp
- p
);
5519 /* p now points to just past the end of the spec function expression. */
5521 funcval
= eval_spec_function (func
, args
);
5522 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5528 processing_spec_function
--;
5533 /* Inline subroutine of handle_braces. Returns true if the current
5534 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5536 input_suffix_matches (const char *atom
, const char *end_atom
)
5538 /* We special case the semantics of {.s:...} and {.S:...} and their
5539 negative variants. Instead of testing the input filename suffix,
5540 we test whether the input source file is an assembler file or an
5541 assembler-with-cpp file respectively. This allows us to correctly
5542 handle the -x command line option. */
5544 if (atom
+ 1 == end_atom
5545 && input_file_compiler
5546 && input_file_compiler
->suffix
)
5549 return !strcmp (input_file_compiler
->suffix
, "@assembler");
5551 return !strcmp (input_file_compiler
->suffix
, "@assembler-with-cpp");
5554 return (input_suffix
5555 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5556 && input_suffix
[end_atom
- atom
] == '\0');
5559 /* Subroutine of handle_braces. Returns true if a switch
5560 matching the atom bracketed by ATOM and END_ATOM appeared on the
5563 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5566 int len
= end_atom
- atom
;
5567 int plen
= starred
? len
: -1;
5569 for (i
= 0; i
< n_switches
; i
++)
5570 if (!strncmp (switches
[i
].part1
, atom
, len
)
5571 && (starred
|| switches
[i
].part1
[len
] == '\0')
5572 && check_live_switch (i
, plen
))
5578 /* Inline subroutine of handle_braces. Mark all of the switches which
5579 match ATOM (extends to END_ATOM; STARRED indicates whether there
5580 was a star after the atom) for later processing. */
5582 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5585 int len
= end_atom
- atom
;
5586 int plen
= starred
? len
: -1;
5588 for (i
= 0; i
< n_switches
; i
++)
5589 if (!strncmp (switches
[i
].part1
, atom
, len
)
5590 && (starred
|| switches
[i
].part1
[len
] == '\0')
5591 && check_live_switch (i
, plen
))
5592 switches
[i
].ordering
= 1;
5595 /* Inline subroutine of handle_braces. Process all the currently
5596 marked switches through give_switch, and clear the marks. */
5598 process_marked_switches (void)
5602 for (i
= 0; i
< n_switches
; i
++)
5603 if (switches
[i
].ordering
== 1)
5605 switches
[i
].ordering
= 0;
5610 /* Handle a %{ ... } construct. P points just inside the leading {.
5611 Returns a pointer one past the end of the brace block, or 0
5612 if we call do_spec_1 and that returns -1. */
5615 handle_braces (const char *p
)
5617 const char *atom
, *end_atom
;
5618 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5619 const char *orig
= p
;
5626 bool a_must_be_last
= false;
5627 bool ordered_set
= false;
5628 bool disjunct_set
= false;
5629 bool disj_matched
= false;
5630 bool disj_starred
= true;
5631 bool n_way_choice
= false;
5632 bool n_way_matched
= false;
5634 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5641 /* Scan one "atom" (S in the description above of %{}, possibly
5642 with !, ., or * modifiers). */
5643 a_matched
= a_is_suffix
= a_is_starred
= a_is_negated
= false;
5647 p
++, a_is_negated
= true;
5651 p
++, a_is_suffix
= true;
5654 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5655 || *p
== ',' || *p
== '.' || *p
== '@')
5660 p
++, a_is_starred
= 1;
5666 /* Substitute the switch(es) indicated by the current atom. */
5668 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5669 || atom
== end_atom
)
5672 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5675 process_marked_switches ();
5679 /* Substitute some text if the current atom appears as a switch
5681 disjunct_set
= true;
5685 if (atom
== end_atom
)
5687 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5688 || a_is_negated
|| a_is_suffix
|| a_is_starred
)
5691 /* An empty term may appear as the last choice of an
5692 N-way choice set; it means "otherwise". */
5693 a_must_be_last
= true;
5694 disj_matched
= !n_way_matched
;
5695 disj_starred
= false;
5699 if (a_is_suffix
&& a_is_starred
)
5703 disj_starred
= false;
5705 /* Don't bother testing this atom if we already have a
5707 if (!disj_matched
&& !n_way_matched
)
5710 a_matched
= input_suffix_matches (atom
, end_atom
);
5712 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5714 if (a_matched
!= a_is_negated
)
5716 disj_matched
= true;
5718 d_end_atom
= end_atom
;
5725 /* Found the body, that is, the text to substitute if the
5726 current disjunction matches. */
5727 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5728 disj_matched
&& !n_way_matched
);
5732 /* If we have an N-way choice, reset state for the next
5736 n_way_choice
= true;
5737 n_way_matched
|= disj_matched
;
5738 disj_matched
= false;
5739 disj_starred
= true;
5740 d_atom
= d_end_atom
= NULL
;
5749 while (*p
++ != '}');
5754 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
5759 /* Subroutine of handle_braces. Scan and process a brace substitution body
5760 (X in the description of %{} syntax). P points one past the colon;
5761 ATOM and END_ATOM bracket the first atom which was found to be true
5762 (present) in the current disjunction; STARRED indicates whether all
5763 the atoms in the current disjunction were starred (for syntax validation);
5764 MATCHED indicates whether the disjunction matched or not, and therefore
5765 whether or not the body is to be processed through do_spec_1 or just
5766 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5770 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5771 int starred
, int matched
)
5773 const char *body
, *end_body
;
5774 unsigned int nesting_level
;
5775 bool have_subst
= false;
5777 /* Locate the closing } or ;, honoring nested braces.
5778 Trim trailing whitespace. */
5787 if (!--nesting_level
)
5790 else if (*p
== ';' && nesting_level
== 1)
5792 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5794 else if (*p
== '\0')
5800 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5803 if (have_subst
&& !starred
)
5808 /* Copy the substitution body to permanent storage and execute it.
5809 If have_subst is false, this is a simple matter of running the
5810 body through do_spec_1... */
5811 char *string
= save_string (body
, end_body
- body
);
5814 if (do_spec_1 (string
, 0, NULL
) < 0)
5819 /* ... but if have_subst is true, we have to process the
5820 body once for each matching switch, with %* set to the
5821 variant part of the switch. */
5822 unsigned int hard_match_len
= end_atom
- atom
;
5825 for (i
= 0; i
< n_switches
; i
++)
5826 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5827 && check_live_switch (i
, hard_match_len
))
5829 if (do_spec_1 (string
, 0,
5830 &switches
[i
].part1
[hard_match_len
]) < 0)
5832 /* Pass any arguments this switch has. */
5834 suffix_subst
= NULL
;
5842 fatal ("braced spec body '%s' is invalid", body
);
5845 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5846 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5847 spec, or -1 if either exact match or %* is used.
5849 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5850 whose value does not begin with "no-" is obsoleted by the same value
5851 with the "no-", similarly for a switch with the "no-" prefix. */
5854 check_live_switch (int switchnum
, int prefix_length
)
5856 const char *name
= switches
[switchnum
].part1
;
5859 /* In the common case of {<at-most-one-letter>*}, a negating
5860 switch would always match, so ignore that case. We will just
5861 send the conflicting switches to the compiler phase. */
5862 if (prefix_length
>= 0 && prefix_length
<= 1)
5865 /* If we already processed this switch and determined if it was
5866 live or not, return our past determination. */
5867 if (switches
[switchnum
].live_cond
!= 0)
5868 return switches
[switchnum
].live_cond
> 0;
5870 /* Now search for duplicate in a manner that depends on the name. */
5874 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5875 if (switches
[i
].part1
[0] == 'O')
5877 switches
[switchnum
].validated
= 1;
5878 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5883 case 'W': case 'f': case 'm':
5884 if (! strncmp (name
+ 1, "no-", 3))
5886 /* We have Xno-YYY, search for XYYY. */
5887 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5888 if (switches
[i
].part1
[0] == name
[0]
5889 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5891 switches
[switchnum
].validated
= 1;
5892 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5898 /* We have XYYY, search for Xno-YYY. */
5899 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5900 if (switches
[i
].part1
[0] == name
[0]
5901 && switches
[i
].part1
[1] == 'n'
5902 && switches
[i
].part1
[2] == 'o'
5903 && switches
[i
].part1
[3] == '-'
5904 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5906 switches
[switchnum
].validated
= 1;
5907 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5914 /* Otherwise the switch is live. */
5915 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5919 /* Pass a switch to the current accumulating command
5920 in the same form that we received it.
5921 SWITCHNUM identifies the switch; it is an index into
5922 the vector of switches gcc received, which is `switches'.
5923 This cannot fail since it never finishes a command line.
5925 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5928 give_switch (int switchnum
, int omit_first_word
)
5930 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5933 if (!omit_first_word
)
5935 do_spec_1 ("-", 0, NULL
);
5936 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5939 if (switches
[switchnum
].args
!= 0)
5942 for (p
= switches
[switchnum
].args
; *p
; p
++)
5944 const char *arg
= *p
;
5946 do_spec_1 (" ", 0, NULL
);
5949 unsigned length
= strlen (arg
);
5952 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5953 if (arg
[length
] == '.')
5955 ((char *)arg
)[length
] = 0;
5959 do_spec_1 (arg
, 1, NULL
);
5961 ((char *)arg
)[length
] = '.';
5962 do_spec_1 (suffix_subst
, 1, NULL
);
5965 do_spec_1 (arg
, 1, NULL
);
5969 do_spec_1 (" ", 0, NULL
);
5970 switches
[switchnum
].validated
= 1;
5973 /* Search for a file named NAME trying various prefixes including the
5974 user's -B prefix and some standard ones.
5975 Return the absolute file name found. If nothing is found, return NAME. */
5978 find_file (const char *name
)
5980 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5981 return newname
? newname
: name
;
5984 /* Determine whether a directory exists. If LINKER, return 0 for
5985 certain fixed names not needed by the linker. */
5988 is_directory (const char *path1
, bool linker
)
5995 /* Ensure the string ends with "/.". The resulting path will be a
5996 directory even if the given path is a symbolic link. */
5997 len1
= strlen (path1
);
5998 path
= alloca (3 + len1
);
5999 memcpy (path
, path1
, len1
);
6001 if (!IS_DIR_SEPARATOR (cp
[-1]))
6002 *cp
++ = DIR_SEPARATOR
;
6006 /* Exclude directories that the linker is known to search. */
6008 && IS_DIR_SEPARATOR (path
[0])
6010 && strncmp (path
+ 1, "lib", 3) == 0)
6012 && strncmp (path
+ 1, "usr", 3) == 0
6013 && IS_DIR_SEPARATOR (path
[4])
6014 && strncmp (path
+ 5, "lib", 3) == 0)))
6017 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6020 /* Set up the various global variables to indicate that we're processing
6021 the input file named FILENAME. */
6024 set_input (const char *filename
)
6028 input_filename
= filename
;
6029 input_filename_length
= strlen (input_filename
);
6031 input_basename
= input_filename
;
6032 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6033 /* Skip drive name so 'x:foo' is handled properly. */
6034 if (input_basename
[1] == ':')
6035 input_basename
+= 2;
6037 for (p
= input_basename
; *p
; p
++)
6038 if (IS_DIR_SEPARATOR (*p
))
6039 input_basename
= p
+ 1;
6041 /* Find a suffix starting with the last period,
6042 and set basename_length to exclude that suffix. */
6043 basename_length
= strlen (input_basename
);
6044 suffixed_basename_length
= basename_length
;
6045 p
= input_basename
+ basename_length
;
6046 while (p
!= input_basename
&& *p
!= '.')
6048 if (*p
== '.' && p
!= input_basename
)
6050 basename_length
= p
- input_basename
;
6051 input_suffix
= p
+ 1;
6056 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6057 we will need to do a stat on the input_filename. The
6058 INPUT_STAT_SET signals that the stat is needed. */
6062 /* On fatal signals, delete all the temporary files. */
6065 fatal_error (int signum
)
6067 signal (signum
, SIG_DFL
);
6068 delete_failure_queue ();
6069 delete_temp_files ();
6070 /* Get the same signal again, this time not handled,
6071 so its normal effect occurs. */
6072 kill (getpid (), signum
);
6075 extern int main (int, char **);
6078 main (int argc
, char **argv
)
6082 int linker_was_run
= 0;
6083 int lang_n_infiles
= 0;
6084 int num_linker_inputs
= 0;
6085 char *explicit_link_files
;
6088 struct user_specs
*uptr
;
6090 p
= argv
[0] + strlen (argv
[0]);
6091 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6095 xmalloc_set_program_name (programname
);
6097 expandargv (&argc
, &argv
);
6099 prune_options (&argc
, &argv
);
6101 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6102 /* Perform host dependent initialization when needed. */
6103 GCC_DRIVER_HOST_INITIALIZATION
;
6106 /* Unlock the stdio streams. */
6107 unlock_std_streams ();
6109 gcc_init_libintl ();
6111 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6112 signal (SIGINT
, fatal_error
);
6114 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6115 signal (SIGHUP
, fatal_error
);
6117 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6118 signal (SIGTERM
, fatal_error
);
6120 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6121 signal (SIGPIPE
, fatal_error
);
6124 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6125 receive the signal. A different setting is inheritable */
6126 signal (SIGCHLD
, SIG_DFL
);
6129 /* Allocate the argument vector. */
6132 obstack_init (&obstack
);
6134 /* Build multilib_select, et. al from the separate lines that make up each
6135 multilib selection. */
6137 const char *const *q
= multilib_raw
;
6140 obstack_init (&multilib_obstack
);
6141 while ((p
= *q
++) != (char *) 0)
6142 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6144 obstack_1grow (&multilib_obstack
, 0);
6145 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6147 q
= multilib_matches_raw
;
6148 while ((p
= *q
++) != (char *) 0)
6149 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6151 obstack_1grow (&multilib_obstack
, 0);
6152 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6154 q
= multilib_exclusions_raw
;
6155 while ((p
= *q
++) != (char *) 0)
6156 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6158 obstack_1grow (&multilib_obstack
, 0);
6159 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6162 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6165 obstack_1grow (&multilib_obstack
, ' ');
6166 obstack_grow (&multilib_obstack
,
6167 multilib_defaults_raw
[i
],
6168 strlen (multilib_defaults_raw
[i
]));
6172 obstack_1grow (&multilib_obstack
, 0);
6173 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6176 /* Set up to remember the pathname of gcc and any options
6177 needed for collect. We use argv[0] instead of programname because
6178 we need the complete pathname. */
6179 obstack_init (&collect_obstack
);
6180 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6181 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6182 putenv (XOBFINISH (&collect_obstack
, char *));
6184 #ifdef INIT_ENVIRONMENT
6185 /* Set up any other necessary machine specific environment variables. */
6186 putenv (INIT_ENVIRONMENT
);
6189 /* Make a table of what switches there are (switches, n_switches).
6190 Make a table of specified input files (infiles, n_infiles).
6191 Decode switches that are handled locally. */
6193 process_command (argc
, (const char **) argv
);
6195 /* Initialize the vector of specs to just the default.
6196 This means one element containing 0s, as a terminator. */
6198 compilers
= xmalloc (sizeof default_compilers
);
6199 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6200 n_compilers
= n_default_compilers
;
6202 /* Read specs from a file if there is one. */
6204 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6205 spec_version
, dir_separator_str
, NULL
);
6206 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6208 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6209 /* Read the specs file unless it is a default one. */
6210 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6211 read_specs (specs_file
, TRUE
);
6215 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6216 for any override of as, ld and libraries. */
6217 specs_file
= alloca (strlen (standard_exec_prefix
)
6218 + strlen (just_machine_suffix
) + sizeof ("specs"));
6220 strcpy (specs_file
, standard_exec_prefix
);
6221 strcat (specs_file
, just_machine_suffix
);
6222 strcat (specs_file
, "specs");
6223 if (access (specs_file
, R_OK
) == 0)
6224 read_specs (specs_file
, TRUE
);
6226 /* Process any configure-time defaults specified for the command line
6227 options, via OPTION_DEFAULT_SPECS. */
6228 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6229 do_option_spec (option_default_specs
[i
].name
,
6230 option_default_specs
[i
].spec
);
6232 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6233 of the command line. */
6235 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6236 do_self_spec (driver_self_specs
[i
]);
6238 /* If not cross-compiling, look for executables in the standard
6240 if (*cross_compile
== '0')
6242 if (*md_exec_prefix
)
6244 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6245 PREFIX_PRIORITY_LAST
, 0, 0);
6249 /* Process sysroot_suffix_spec. */
6250 if (*sysroot_suffix_spec
!= 0
6251 && do_spec_2 (sysroot_suffix_spec
) == 0)
6253 if (argbuf_index
> 1)
6254 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6255 else if (argbuf_index
== 1)
6256 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6259 #ifdef HAVE_LD_SYSROOT
6260 /* Pass the --sysroot option to the linker, if it supports that. If
6261 there is a sysroot_suffix_spec, it has already been processed by
6262 this point, so target_system_root really is the system root we
6264 if (target_system_root
)
6266 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6267 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6268 set_spec ("link", XOBFINISH (&obstack
, const char *));
6272 /* Process sysroot_hdrs_suffix_spec. */
6273 if (*sysroot_hdrs_suffix_spec
!= 0
6274 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6276 if (argbuf_index
> 1)
6277 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6278 else if (argbuf_index
== 1)
6279 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6282 /* Look for startfiles in the standard places. */
6283 if (*startfile_prefix_spec
!= 0
6284 && do_spec_2 (startfile_prefix_spec
) == 0
6285 && do_spec_1 (" ", 0, NULL
) == 0)
6288 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6289 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6290 PREFIX_PRIORITY_LAST
, 0, 1);
6292 /* We should eventually get rid of all these and stick to
6293 startfile_prefix_spec exclusively. */
6294 else if (*cross_compile
== '0' || target_system_root
)
6296 if (*md_startfile_prefix
)
6297 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6298 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6300 if (*md_startfile_prefix_1
)
6301 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6302 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6304 /* If standard_startfile_prefix is relative, base it on
6305 standard_exec_prefix. This lets us move the installed tree
6306 as a unit. If GCC_EXEC_PREFIX is defined, base
6307 standard_startfile_prefix on that as well.
6309 If the prefix is relative, only search it for native compilers;
6310 otherwise we will search a directory containing host libraries. */
6311 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6312 add_sysrooted_prefix (&startfile_prefixes
,
6313 standard_startfile_prefix
, "BINUTILS",
6314 PREFIX_PRIORITY_LAST
, 0, 1);
6315 else if (*cross_compile
== '0')
6317 if (gcc_exec_prefix
)
6318 add_prefix (&startfile_prefixes
,
6319 concat (gcc_exec_prefix
, machine_suffix
,
6320 standard_startfile_prefix
, NULL
),
6321 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6322 add_prefix (&startfile_prefixes
,
6323 concat (standard_exec_prefix
,
6325 standard_startfile_prefix
, NULL
),
6326 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6329 if (*standard_startfile_prefix_1
)
6330 add_sysrooted_prefix (&startfile_prefixes
,
6331 standard_startfile_prefix_1
, "BINUTILS",
6332 PREFIX_PRIORITY_LAST
, 0, 1);
6333 if (*standard_startfile_prefix_2
)
6334 add_sysrooted_prefix (&startfile_prefixes
,
6335 standard_startfile_prefix_2
, "BINUTILS",
6336 PREFIX_PRIORITY_LAST
, 0, 1);
6339 /* Process any user specified specs in the order given on the command
6341 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6343 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6345 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6348 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6349 if (gcc_exec_prefix
)
6350 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6351 spec_version
, dir_separator_str
, NULL
);
6353 /* Now we have the specs.
6354 Set the `valid' bits for switches that match anything in any spec. */
6356 validate_all_switches ();
6358 /* Now that we have the switches and the specs, set
6359 the subdirectory based on the options. */
6360 set_multilib_dir ();
6362 /* Warn about any switches that no pass was interested in. */
6364 for (i
= 0; (int) i
< n_switches
; i
++)
6365 if (! switches
[i
].validated
)
6366 error ("unrecognized option '-%s'", switches
[i
].part1
);
6368 /* Obey some of the options. */
6370 if (print_search_dirs
)
6372 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6373 printf (_("programs: %s\n"),
6374 build_search_list (&exec_prefixes
, "", false, false));
6375 printf (_("libraries: %s\n"),
6376 build_search_list (&startfile_prefixes
, "", false, true));
6380 if (print_file_name
)
6382 printf ("%s\n", find_file (print_file_name
));
6386 if (print_prog_name
)
6388 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6389 printf ("%s\n", (newname
? newname
: print_prog_name
));
6393 if (print_multi_lib
)
6395 print_multilib_info ();
6399 if (print_multi_directory
)
6401 if (multilib_dir
== NULL
)
6404 printf ("%s\n", multilib_dir
);
6408 if (print_multi_os_directory
)
6410 if (multilib_os_dir
== NULL
)
6413 printf ("%s\n", multilib_os_dir
);
6417 if (target_help_flag
)
6419 /* Print if any target specific options. */
6421 /* We do not exit here. Instead we have created a fake input file
6422 called 'target-dummy' which needs to be compiled, and we pass this
6423 on to the various sub-processes, along with the --target-help
6427 if (print_help_list
)
6433 printf (_("\nFor bug reporting instructions, please see:\n"));
6434 printf ("%s.\n", bug_report_url
);
6439 /* We do not exit here. Instead we have created a fake input file
6440 called 'help-dummy' which needs to be compiled, and we pass this
6441 on the various sub-processes, along with the --help switch. */
6449 notice ("Target: %s\n", spec_machine
);
6450 notice ("Configured with: %s\n", configuration_arguments
);
6452 #ifdef THREAD_MODEL_SPEC
6453 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6454 but there's no point in doing all this processing just to get
6455 thread_model back. */
6456 obstack_init (&obstack
);
6457 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6458 obstack_1grow (&obstack
, '\0');
6459 thrmod
= XOBFINISH (&obstack
, const char *);
6461 thrmod
= thread_model
;
6464 notice ("Thread model: %s\n", thrmod
);
6466 /* compiler_version is truncated at the first space when initialized
6467 from version string, so truncate version_string at the first space
6468 before comparing. */
6469 for (n
= 0; version_string
[n
]; n
++)
6470 if (version_string
[n
] == ' ')
6473 if (! strncmp (version_string
, compiler_version
, n
)
6474 && compiler_version
[n
] == 0)
6475 notice ("gcc version %s\n", version_string
);
6477 notice ("gcc driver version %s executing gcc version %s\n",
6478 version_string
, compiler_version
);
6484 if (n_infiles
== added_libraries
)
6485 fatal ("no input files");
6487 /* Make a place to record the compiler output file names
6488 that correspond to the input files. */
6491 i
+= lang_specific_extra_outfiles
;
6492 outfiles
= XCNEWVEC (const char *, i
);
6494 /* Record which files were specified explicitly as link input. */
6496 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6499 combine_inputs
= true;
6501 combine_inputs
= false;
6503 for (i
= 0; (int) i
< n_infiles
; i
++)
6505 const char *name
= infiles
[i
].name
;
6506 struct compiler
*compiler
= lookup_compiler (name
,
6508 infiles
[i
].language
);
6510 if (compiler
&& !(compiler
->combinable
))
6511 combine_inputs
= false;
6513 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6514 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6515 infiles
[i
].incompiler
= compiler
;
6519 input_file_compiler
= compiler
;
6520 infiles
[i
].incompiler
= compiler
;
6524 /* Since there is no compiler for this input file, assume it is a
6526 explicit_link_files
[i
] = 1;
6527 infiles
[i
].incompiler
= NULL
;
6529 infiles
[i
].compiled
= false;
6530 infiles
[i
].preprocessed
= false;
6533 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6534 fatal ("cannot specify -o with -c or -S with multiple files");
6536 if (combine_flag
&& save_temps_flag
)
6538 bool save_combine_inputs
= combine_inputs
;
6539 /* Must do a separate pre-processing pass for C & Objective-C files, to
6540 obtain individual .i files. */
6542 combine_inputs
= false;
6543 for (i
= 0; (int) i
< n_infiles
; i
++)
6545 int this_file_error
= 0;
6547 input_file_number
= i
;
6548 set_input (infiles
[i
].name
);
6549 if (infiles
[i
].incompiler
6550 && (infiles
[i
].incompiler
)->needs_preprocessing
)
6551 input_file_compiler
= infiles
[i
].incompiler
;
6555 if (input_file_compiler
)
6557 if (input_file_compiler
->spec
[0] == '#')
6559 error ("%s: %s compiler not installed on this system",
6560 input_filename
, &input_file_compiler
->spec
[1]);
6561 this_file_error
= 1;
6565 value
= do_spec (input_file_compiler
->spec
);
6566 infiles
[i
].preprocessed
= true;
6567 if (!have_o_argbuf_index
)
6568 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
6569 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
6570 infiles
[i
].incompiler
6571 = lookup_compiler (infiles
[i
].name
,
6572 strlen (infiles
[i
].name
),
6573 infiles
[i
].language
);
6576 this_file_error
= 1;
6580 if (this_file_error
)
6582 delete_failure_queue ();
6586 clear_failure_queue ();
6588 combine_inputs
= save_combine_inputs
;
6591 for (i
= 0; (int) i
< n_infiles
; i
++)
6593 int this_file_error
= 0;
6595 /* Tell do_spec what to substitute for %i. */
6597 input_file_number
= i
;
6598 set_input (infiles
[i
].name
);
6600 if (infiles
[i
].compiled
)
6603 /* Use the same thing in %o, unless cp->spec says otherwise. */
6605 outfiles
[i
] = input_filename
;
6607 /* Figure out which compiler from the file's suffix. */
6609 if (! combine_inputs
)
6611 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6612 infiles
[i
].language
);
6614 input_file_compiler
= infiles
[i
].incompiler
;
6616 if (input_file_compiler
)
6618 /* Ok, we found an applicable compiler. Run its spec. */
6620 if (input_file_compiler
->spec
[0] == '#')
6622 error ("%s: %s compiler not installed on this system",
6623 input_filename
, &input_file_compiler
->spec
[1]);
6624 this_file_error
= 1;
6628 value
= do_spec (input_file_compiler
->spec
);
6629 infiles
[i
].compiled
= true;
6631 this_file_error
= 1;
6635 /* If this file's name does not contain a recognized suffix,
6636 record it as explicit linker input. */
6639 explicit_link_files
[i
] = 1;
6641 /* Clear the delete-on-failure queue, deleting the files in it
6642 if this compilation failed. */
6644 if (this_file_error
)
6646 delete_failure_queue ();
6649 /* If this compilation succeeded, don't delete those files later. */
6650 clear_failure_queue ();
6653 /* Reset the input file name to the first compile/object file name, for use
6654 with %b in LINK_SPEC. We use the first input file that we can find
6655 a compiler to compile it instead of using infiles.language since for
6656 languages other than C we use aliases that we then lookup later. */
6661 for (i
= 0; i
< n_infiles
; i
++)
6662 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6664 set_input (infiles
[i
].name
);
6669 if (error_count
== 0)
6671 /* Make sure INPUT_FILE_NUMBER points to first available open
6673 input_file_number
= n_infiles
;
6674 if (lang_specific_pre_link ())
6678 /* Determine if there are any linker input files. */
6679 num_linker_inputs
= 0;
6680 for (i
= 0; (int) i
< n_infiles
; i
++)
6681 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6682 num_linker_inputs
++;
6684 /* Run ld to link all the compiler output files. */
6686 if (num_linker_inputs
> 0 && error_count
== 0)
6688 int tmp
= execution_count
;
6690 /* We'll use ld if we can't find collect2. */
6691 if (! strcmp (linker_name_spec
, "collect2"))
6693 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6695 linker_name_spec
= "ld";
6697 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6699 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6700 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6702 value
= do_spec (link_command_spec
);
6705 linker_was_run
= (tmp
!= execution_count
);
6708 /* If options said don't run linker,
6709 complain about input files to be given to the linker. */
6711 if (! linker_was_run
&& error_count
== 0)
6712 for (i
= 0; (int) i
< n_infiles
; i
++)
6713 if (explicit_link_files
[i
])
6714 error ("%s: linker input file unused because linking not done",
6717 /* Delete some or all of the temporary files we made. */
6720 delete_failure_queue ();
6721 delete_temp_files ();
6723 if (print_help_list
)
6725 printf (("\nFor bug reporting instructions, please see:\n"));
6726 printf ("%s\n", bug_report_url
);
6729 return (signal_count
!= 0 ? 2
6730 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6734 /* Find the proper compilation spec for the file name NAME,
6735 whose length is LENGTH. LANGUAGE is the specified language,
6736 or 0 if this file is to be passed to the linker. */
6738 static struct compiler
*
6739 lookup_compiler (const char *name
, size_t length
, const char *language
)
6741 struct compiler
*cp
;
6743 /* If this was specified by the user to be a linker input, indicate that. */
6744 if (language
!= 0 && language
[0] == '*')
6747 /* Otherwise, look for the language, if one is spec'd. */
6750 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6751 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6754 error ("language %s not recognized", language
);
6758 /* Look for a suffix. */
6759 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6761 if (/* The suffix `-' matches only the file name `-'. */
6762 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6763 || (strlen (cp
->suffix
) < length
6764 /* See if the suffix matches the end of NAME. */
6765 && !strcmp (cp
->suffix
,
6766 name
+ length
- strlen (cp
->suffix
))
6771 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6772 /* Look again, but case-insensitively this time. */
6774 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6776 if (/* The suffix `-' matches only the file name `-'. */
6777 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6778 || (strlen (cp
->suffix
) < length
6779 /* See if the suffix matches the end of NAME. */
6780 && ((!strcmp (cp
->suffix
,
6781 name
+ length
- strlen (cp
->suffix
))
6782 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6783 && !strcasecmp (cp
->suffix
,
6784 name
+ length
- strlen (cp
->suffix
)))
6790 if (cp
>= compilers
)
6792 if (cp
->spec
[0] != '@')
6793 /* A non-alias entry: return it. */
6796 /* An alias entry maps a suffix to a language.
6797 Search for the language; pass 0 for NAME and LENGTH
6798 to avoid infinite recursion if language not found. */
6799 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6805 save_string (const char *s
, int len
)
6807 char *result
= XNEWVEC (char, len
+ 1);
6809 memcpy (result
, s
, len
);
6815 pfatal_with_name (const char *name
)
6817 perror_with_name (name
);
6818 delete_temp_files ();
6823 perror_with_name (const char *name
)
6825 error ("%s: %s", name
, xstrerror (errno
));
6828 /* Output an error message and exit. */
6831 fancy_abort (const char *file
, int line
, const char *func
)
6833 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
6836 /* Output an error message and exit. */
6839 fatal_ice (const char *cmsgid
, ...)
6843 va_start (ap
, cmsgid
);
6845 fprintf (stderr
, "%s: ", programname
);
6846 vfprintf (stderr
, _(cmsgid
), ap
);
6848 fprintf (stderr
, "\n");
6849 delete_temp_files ();
6850 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
6854 fatal (const char *cmsgid
, ...)
6858 va_start (ap
, cmsgid
);
6860 fprintf (stderr
, "%s: ", programname
);
6861 vfprintf (stderr
, _(cmsgid
), ap
);
6863 fprintf (stderr
, "\n");
6864 delete_temp_files ();
6868 /* The argument is actually c-format, not gcc-internal-format,
6869 but because functions with identical names are used through
6870 the rest of the compiler with gcc-internal-format, we just
6871 need to hope all users of these functions use the common
6872 subset between c-format and gcc-internal-format. */
6875 error (const char *gmsgid
, ...)
6879 va_start (ap
, gmsgid
);
6880 fprintf (stderr
, "%s: ", programname
);
6881 vfprintf (stderr
, _(gmsgid
), ap
);
6884 fprintf (stderr
, "\n");
6888 notice (const char *cmsgid
, ...)
6892 va_start (ap
, cmsgid
);
6893 vfprintf (stderr
, _(cmsgid
), ap
);
6898 validate_switches_from_spec (const char *spec
)
6900 const char *p
= spec
;
6903 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6904 /* We have a switch spec. */
6905 p
= validate_switches (p
+ 1);
6909 validate_all_switches (void)
6911 struct compiler
*comp
;
6912 struct spec_list
*spec
;
6914 for (comp
= compilers
; comp
->spec
; comp
++)
6915 validate_switches_from_spec (comp
->spec
);
6917 /* Look through the linked list of specs read from the specs file. */
6918 for (spec
= specs
; spec
; spec
= spec
->next
)
6919 validate_switches_from_spec (*spec
->ptr_spec
);
6921 validate_switches_from_spec (link_command_spec
);
6924 /* Look at the switch-name that comes after START
6925 and mark as valid all supplied switches that match it. */
6928 validate_switches (const char *start
)
6930 const char *p
= start
;
6934 bool suffix
= false;
6935 bool starred
= false;
6937 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6950 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6951 || *p
== ',' || *p
== '.' || *p
== '@')
6956 starred
= true, p
++;
6962 /* Mark all matching switches as valid. */
6963 for (i
= 0; i
< n_switches
; i
++)
6964 if (!strncmp (switches
[i
].part1
, atom
, len
)
6965 && (starred
|| switches
[i
].part1
[len
] == 0))
6966 switches
[i
].validated
= 1;
6970 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
6973 if (*p
&& p
[-1] == ':')
6975 while (*p
&& *p
!= ';' && *p
!= '}')
6980 if (*p
== '{' || *p
== '<')
6981 p
= validate_switches (p
+1);
6982 else if (p
[0] == 'W' && p
[1] == '{')
6983 p
= validate_switches (p
+2);
6990 if (*p
&& p
[-1] == ';')
7004 static struct mdswitchstr
*mdswitches
;
7005 static int n_mdswitches
;
7007 /* Check whether a particular argument was used. The first time we
7008 canonicalize the switches to keep only the ones we care about. */
7011 used_arg (const char *p
, int len
)
7016 const char *replace
;
7021 static struct mswitchstr
*mswitches
;
7022 static int n_mswitches
;
7027 struct mswitchstr
*matches
;
7031 /* Break multilib_matches into the component strings of string
7032 and replacement string. */
7033 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7037 matches
= alloca ((sizeof (struct mswitchstr
)) * cnt
);
7039 q
= multilib_matches
;
7048 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7052 matches
[i
].len
= q
- matches
[i
].str
;
7054 matches
[i
].replace
= ++q
;
7055 while (*q
!= ';' && *q
!= '\0')
7058 goto invalid_matches
;
7061 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7067 /* Now build a list of the replacement string for switches that we care
7068 about. Make sure we allocate at least one entry. This prevents
7069 xmalloc from calling fatal, and prevents us from re-executing this
7072 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7073 for (i
= 0; i
< n_switches
; i
++)
7074 if (switches
[i
].live_cond
!= SWITCH_IGNORE
)
7076 int xlen
= strlen (switches
[i
].part1
);
7077 for (j
= 0; j
< cnt
; j
++)
7078 if (xlen
== matches
[j
].len
7079 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7081 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7082 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7083 mswitches
[n_mswitches
].replace
= (char *) 0;
7084 mswitches
[n_mswitches
].rep_len
= 0;
7090 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7091 on the command line nor any options mutually incompatible with
7093 for (i
= 0; i
< n_mdswitches
; i
++)
7097 for (q
= multilib_options
; *q
!= '\0'; q
++)
7103 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7104 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7106 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7113 if (*q
!= ' ' && *q
!= '\0')
7115 while (*r
!= ' ' && *r
!= '\0')
7118 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7121 if (used_arg (r
, q
- r
))
7126 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7127 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7128 mswitches
[n_mswitches
].replace
= (char *) 0;
7129 mswitches
[n_mswitches
].rep_len
= 0;
7142 for (i
= 0; i
< n_mswitches
; i
++)
7143 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7150 default_arg (const char *p
, int len
)
7154 for (i
= 0; i
< n_mdswitches
; i
++)
7155 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7161 /* Work out the subdirectory to use based on the options. The format of
7162 multilib_select is a list of elements. Each element is a subdirectory
7163 name followed by a list of options followed by a semicolon. The format
7164 of multilib_exclusions is the same, but without the preceding
7165 directory. First gcc will check the exclusions, if none of the options
7166 beginning with an exclamation point are present, and all of the other
7167 options are present, then we will ignore this completely. Passing
7168 that, gcc will consider each multilib_select in turn using the same
7169 rules for matching the options. If a match is found, that subdirectory
7173 set_multilib_dir (void)
7176 unsigned int this_path_len
;
7177 const char *this_path
, *this_arg
;
7178 const char *start
, *end
;
7180 int ok
, ndfltok
, first
;
7183 start
= multilib_defaults
;
7184 while (*start
== ' ' || *start
== '\t')
7186 while (*start
!= '\0')
7189 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7191 while (*start
== ' ' || *start
== '\t')
7199 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7200 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7202 while (*start
== ' ' || *start
== '\t')
7208 for (end
= start
+ 1;
7209 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7212 obstack_grow (&multilib_obstack
, start
, end
- start
);
7213 obstack_1grow (&multilib_obstack
, 0);
7214 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7215 mdswitches
[i
++].len
= end
- start
;
7222 p
= multilib_exclusions
;
7225 /* Ignore newlines. */
7232 /* Check the arguments. */
7239 fatal ("multilib exclusions '%s' is invalid",
7240 multilib_exclusions
);
7250 while (*p
!= ' ' && *p
!= ';')
7253 goto invalid_exclusions
;
7257 if (*this_arg
!= '!')
7265 ok
= used_arg (this_arg
, p
- this_arg
);
7280 p
= multilib_select
;
7283 /* Ignore newlines. */
7290 /* Get the initial path. */
7297 fatal ("multilib select '%s' is invalid",
7302 this_path_len
= p
- this_path
;
7304 /* Check the arguments. */
7311 goto invalid_select
;
7320 while (*p
!= ' ' && *p
!= ';')
7323 goto invalid_select
;
7327 if (*this_arg
!= '!')
7335 /* If this is a default argument, we can just ignore it.
7336 This is true even if this_arg begins with '!'. Beginning
7337 with '!' does not mean that this argument is necessarily
7338 inappropriate for this library: it merely means that
7339 there is a more specific library which uses this
7340 argument. If this argument is a default, we need not
7341 consider that more specific library. */
7342 ok
= used_arg (this_arg
, p
- this_arg
);
7349 if (default_arg (this_arg
, p
- this_arg
))
7358 if (this_path_len
!= 1
7359 || this_path
[0] != '.')
7361 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7364 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7365 new_multilib_dir
[this_path_len
] = '\0';
7366 q
= strchr (new_multilib_dir
, ':');
7369 multilib_dir
= new_multilib_dir
;
7376 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7378 while (q
< end
&& *q
!= ':')
7382 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7383 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7384 new_multilib_os_dir
[end
- q
- 1] = '\0';
7385 multilib_os_dir
= new_multilib_os_dir
;
7393 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7394 && strcmp (multilib_os_dir
, ".") == 0)
7396 free ((char *) multilib_os_dir
);
7397 multilib_os_dir
= NULL
;
7399 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7400 multilib_os_dir
= multilib_dir
;
7403 /* Print out the multiple library subdirectory selection
7404 information. This prints out a series of lines. Each line looks
7405 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7406 required. Only the desired options are printed out, the negative
7407 matches. The options are print without a leading dash. There are
7408 no spaces to make it easy to use the information in the shell.
7409 Each subdirectory is printed only once. This assumes the ordering
7410 generated by the genmultilib script. Also, we leave out ones that match
7414 print_multilib_info (void)
7416 const char *p
= multilib_select
;
7417 const char *last_path
= 0, *this_path
;
7419 unsigned int last_path_len
= 0;
7424 /* Ignore newlines. */
7431 /* Get the initial path. */
7438 fatal ("multilib select '%s' is invalid", multilib_select
);
7444 /* When --disable-multilib was used but target defines
7445 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7446 to find multilib_os_dir, so skip them from output. */
7447 if (this_path
[0] == '.' && this_path
[1] == ':')
7450 /* Check for matches with the multilib_exclusions. We don't bother
7451 with the '!' in either list. If any of the exclusion rules match
7452 all of its options with the select rule, we skip it. */
7454 const char *e
= multilib_exclusions
;
7455 const char *this_arg
;
7460 /* Ignore newlines. */
7467 /* Check the arguments. */
7476 fatal ("multilib exclusion '%s' is invalid",
7477 multilib_exclusions
);
7488 while (*e
!= ' ' && *e
!= ';')
7491 goto invalid_exclusion
;
7499 int len
= e
- this_arg
;
7502 goto invalid_select
;
7506 while (*q
!= ' ' && *q
!= ';')
7509 goto invalid_select
;
7513 if (! strncmp (arg
, this_arg
,
7514 (len
< q
- arg
) ? q
- arg
: len
)
7515 || default_arg (this_arg
, e
- this_arg
))
7545 /* If this is a duplicate, skip it. */
7546 skip
= (last_path
!= 0
7547 && (unsigned int) (p
- this_path
) == last_path_len
7548 && ! strncmp (last_path
, this_path
, last_path_len
));
7550 last_path
= this_path
;
7551 last_path_len
= p
- this_path
;
7554 /* If this directory requires any default arguments, we can skip
7555 it. We will already have printed a directory identical to
7556 this one which does not require that default argument. */
7567 goto invalid_select
;
7574 while (*q
!= ' ' && *q
!= ';')
7577 goto invalid_select
;
7582 && default_arg (arg
, q
- arg
))
7597 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7608 goto invalid_select
;
7616 use_arg
= *p
!= '!';
7621 while (*p
!= ' ' && *p
!= ';')
7624 goto invalid_select
;
7636 /* If there are extra options, print them now. */
7637 if (multilib_extra
&& *multilib_extra
)
7639 int print_at
= TRUE
;
7642 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7663 /* if-exists built-in spec function.
7665 Checks to see if the file specified by the absolute pathname in
7666 ARGS exists. Returns that pathname if found.
7668 The usual use for this function is to check for a library file
7669 (whose name has been expanded with %s). */
7672 if_exists_spec_function (int argc
, const char **argv
)
7674 /* Must have only one argument. */
7675 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7681 /* if-exists-else built-in spec function.
7683 This is like if-exists, but takes an additional argument which
7684 is returned if the first argument does not exist. */
7687 if_exists_else_spec_function (int argc
, const char **argv
)
7689 /* Must have exactly two arguments. */
7693 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7699 /* replace-outfile built-in spec function.
7701 This looks for the first argument in the outfiles array's name and
7702 replaces it with the second argument. */
7705 replace_outfile_spec_function (int argc
, const char **argv
)
7708 /* Must have exactly two arguments. */
7712 for (i
= 0; i
< n_infiles
; i
++)
7714 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7715 outfiles
[i
] = xstrdup (argv
[1]);
7720 /* Given two version numbers, compares the two numbers.
7721 A version number must match the regular expression
7722 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7725 compare_version_strings (const char *v1
, const char *v2
)
7730 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7731 REG_EXTENDED
| REG_NOSUB
) != 0)
7733 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7734 if (rresult
== REG_NOMATCH
)
7735 fatal ("invalid version number `%s'", v1
);
7736 else if (rresult
!= 0)
7738 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7739 if (rresult
== REG_NOMATCH
)
7740 fatal ("invalid version number `%s'", v2
);
7741 else if (rresult
!= 0)
7744 return strverscmp (v1
, v2
);
7748 /* version_compare built-in spec function.
7750 This takes an argument of the following form:
7752 <comparison-op> <arg1> [<arg2>] <switch> <result>
7754 and produces "result" if the comparison evaluates to true,
7755 and nothing if it doesn't.
7757 The supported <comparison-op> values are:
7759 >= true if switch is a later (or same) version than arg1
7761 < true if switch is an earlier version than arg1
7763 >< true if switch is arg1 or later, and earlier than arg2
7764 <> true if switch is earlier than arg1 or is arg2 or later
7766 If the switch is not present, the condition is false unless
7767 the first character of the <comparison-op> is '!'.
7770 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7771 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7774 version_compare_spec_function (int argc
, const char **argv
)
7778 const char *switch_value
= NULL
;
7783 fatal ("too few arguments to %%:version-compare");
7784 if (argv
[0][0] == '\0')
7786 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7788 if (argc
!= nargs
+ 3)
7789 fatal ("too many arguments to %%:version-compare");
7791 switch_len
= strlen (argv
[nargs
+ 1]);
7792 for (i
= 0; i
< n_switches
; i
++)
7793 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7794 && check_live_switch (i
, switch_len
))
7795 switch_value
= switches
[i
].part1
+ switch_len
;
7797 if (switch_value
== NULL
)
7801 comp1
= compare_version_strings (switch_value
, argv
[1]);
7803 comp2
= compare_version_strings (switch_value
, argv
[2]);
7805 comp2
= -1; /* This value unused. */
7808 switch (argv
[0][0] << 8 | argv
[0][1])
7810 case '>' << 8 | '=':
7811 result
= comp1
>= 0;
7813 case '!' << 8 | '<':
7814 result
= comp1
>= 0 || switch_value
== NULL
;
7819 case '!' << 8 | '>':
7820 result
= comp1
< 0 || switch_value
== NULL
;
7822 case '>' << 8 | '<':
7823 result
= comp1
>= 0 && comp2
< 0;
7825 case '<' << 8 | '>':
7826 result
= comp1
< 0 || comp2
>= 0;
7830 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
7835 return argv
[nargs
+ 2];
7838 /* %:include builtin spec function. This differs from %include in that it
7839 can be nested inside a spec, and thus be conditionalized. It takes
7840 one argument, the filename, and looks for it in the startfile path.
7841 The result is always NULL, i.e. an empty expansion. */
7844 include_spec_function (int argc
, const char **argv
)
7851 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, 0);
7852 read_specs (file
? file
: argv
[0], FALSE
);