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, 2007, 2008, 2009,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
35 #include "coretypes.h"
36 #include "multilib.h" /* before tm.h */
39 #if ! defined( SIGCHLD ) && defined( SIGCLD )
40 # define SIGCHLD SIGCLD
47 #include "diagnostic.h"
52 # include <sys/mman.h>
54 /* This is on Solaris. */
55 # include <sys/types.h>
60 # define MAP_FAILED ((void *)-1)
63 /* By default there is no special suffix for target executables. */
64 /* FIXME: when autoconf is fixed, remove the host check - dj */
65 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
66 #define HAVE_TARGET_EXECUTABLE_SUFFIX
69 /* By default there is no special suffix for host executables. */
70 #ifdef HOST_EXECUTABLE_SUFFIX
71 #define HAVE_HOST_EXECUTABLE_SUFFIX
73 #define HOST_EXECUTABLE_SUFFIX ""
76 /* By default, the suffix for target object files is ".o". */
77 #ifdef TARGET_OBJECT_SUFFIX
78 #define HAVE_TARGET_OBJECT_SUFFIX
80 #define TARGET_OBJECT_SUFFIX ".o"
83 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag set by cppspec.c to 1. */
102 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
103 static bool at_file_supplied
;
105 /* Definition of string containing the arguments given to configure. */
106 #include "configargs.h"
108 /* Flag saying to print the command line options understood by gcc and its
111 static int print_help_list
;
113 /* Flag saying to print the version of gcc and its sub-processes. */
115 static int print_version
;
117 /* Flag indicating whether we should ONLY print the command and
118 arguments (like verbose_flag) without executing the command.
119 Displayed arguments are quoted so that the generated command
120 line is suitable for execution. This is intended for use in
121 shell scripts to capture the driver-generated command line. */
122 static int verbose_only_flag
;
124 /* Flag indicating how to print command line options of sub-processes. */
126 static int print_subprocess_help
;
128 /* Whether we should report subprocess execution times to a file. */
130 FILE *report_times_to_file
= NULL
;
132 /* Nonzero means place this string before uses of /, so that include
133 and library files can be found in an alternate location. */
135 #ifdef TARGET_SYSTEM_ROOT
136 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
138 static const char *target_system_root
= 0;
141 /* Nonzero means pass the updated target_system_root to the compiler. */
143 static int target_system_root_changed
;
145 /* Nonzero means append this string to target_system_root. */
147 static const char *target_sysroot_suffix
= 0;
149 /* Nonzero means append this string to target_system_root for headers. */
151 static const char *target_sysroot_hdrs_suffix
= 0;
153 /* Nonzero means write "temp" files in source directory
154 and use the source file's name in them, and don't delete them. */
156 static enum save_temps
{
157 SAVE_TEMPS_NONE
, /* no -save-temps */
158 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
159 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
162 /* Output file to use to get the object directory for -save-temps=obj */
163 static char *save_temps_prefix
= 0;
164 static size_t save_temps_length
= 0;
166 /* The compiler version. */
168 static const char *compiler_version
;
170 /* The target version. */
172 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
174 /* The target machine. */
176 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
178 /* Nonzero if cross-compiling.
179 When -b is used, the value comes from the `specs' file. */
181 #ifdef CROSS_DIRECTORY_STRUCTURE
182 static const char *cross_compile
= "1";
184 static const char *cross_compile
= "0";
187 /* Greatest exit code of sub-processes that has been encountered up to
189 static int greatest_status
= 1;
191 /* This is the obstack which we use to allocate many strings. */
193 static struct obstack obstack
;
195 /* This is the obstack to build an environment variable to pass to
196 collect2 that describes all of the relevant switches of what to
197 pass the compiler in building the list of pointers to constructors
200 static struct obstack collect_obstack
;
202 /* Forward declaration for prototypes. */
206 static void init_spec (void);
207 static void store_arg (const char *, int, int);
208 static void insert_wrapper (const char *);
209 static char *load_specs (const char *);
210 static void read_specs (const char *, int);
211 static void set_spec (const char *, const char *);
212 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
213 static char *build_search_list (const struct path_prefix
*, const char *,
215 static void xputenv (const char *);
216 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
218 static int access_check (const char *, int);
219 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
220 static void add_prefix (struct path_prefix
*, const char *, const char *,
222 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
223 const char *, int, int, int);
224 static char *skip_whitespace (char *);
225 static void delete_if_ordinary (const char *);
226 static void delete_temp_files (void);
227 static void delete_failure_queue (void);
228 static void clear_failure_queue (void);
229 static int check_live_switch (int, int);
230 static const char *handle_braces (const char *);
231 static inline bool input_suffix_matches (const char *, const char *);
232 static inline bool switch_matches (const char *, const char *, int);
233 static inline void mark_matching_switches (const char *, const char *, int);
234 static inline void process_marked_switches (void);
235 static const char *process_brace_body (const char *, const char *, const char *, int, int);
236 static const struct spec_function
*lookup_spec_function (const char *);
237 static const char *eval_spec_function (const char *, const char *);
238 static const char *handle_spec_function (const char *);
239 static char *save_string (const char *, int);
240 static void set_collect_gcc_options (void);
241 static int do_spec_1 (const char *, int, const char *);
242 static int do_spec_2 (const char *);
243 static void do_option_spec (const char *, const char *);
244 static void do_self_spec (const char *);
245 static const char *find_file (const char *);
246 static int is_directory (const char *, bool);
247 static const char *validate_switches (const char *);
248 static void validate_all_switches (void);
249 static inline void validate_switches_from_spec (const char *);
250 static void give_switch (int, int);
251 static int used_arg (const char *, int);
252 static int default_arg (const char *, int);
253 static void set_multilib_dir (void);
254 static void print_multilib_info (void);
255 static void perror_with_name (const char *);
256 static void display_help (void);
257 static void add_preprocessor_option (const char *, int);
258 static void add_assembler_option (const char *, int);
259 static void add_linker_option (const char *, int);
260 static void process_command (unsigned int, struct cl_decoded_option
*);
261 static int execute (void);
262 static void alloc_args (void);
263 static void clear_args (void);
264 static void fatal_signal (int);
265 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
266 static void init_gcc_specs (struct obstack
*, const char *, const char *,
269 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
270 static const char *convert_filename (const char *, int, int);
273 static const char *getenv_spec_function (int, const char **);
274 static const char *if_exists_spec_function (int, const char **);
275 static const char *if_exists_else_spec_function (int, const char **);
276 static const char *replace_outfile_spec_function (int, const char **);
277 static const char *remove_outfile_spec_function (int, const char **);
278 static const char *version_compare_spec_function (int, const char **);
279 static const char *include_spec_function (int, const char **);
280 static const char *find_file_spec_function (int, const char **);
281 static const char *find_plugindir_spec_function (int, const char **);
282 static const char *print_asm_header_spec_function (int, const char **);
283 static const char *compare_debug_dump_opt_spec_function (int, const char **);
284 static const char *compare_debug_self_opt_spec_function (int, const char **);
285 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
287 /* The Specs Language
289 Specs are strings containing lines, each of which (if not blank)
290 is made up of a program name, and arguments separated by spaces.
291 The program name must be exact and start from root, since no path
292 is searched and it is unreliable to depend on the current working directory.
293 Redirection of input or output is not supported; the subprograms must
294 accept filenames saying what files to read and write.
296 In addition, the specs can contain %-sequences to substitute variable text
297 or for conditional text. Here is a table of all defined %-sequences.
298 Note that spaces are not generated automatically around the results of
299 expanding these sequences; therefore, you can concatenate them together
300 or with constant text in a single argument.
302 %% substitute one % into the program name or argument.
303 %i substitute the name of the input file being processed.
304 %b substitute the basename of the input file being processed.
305 This is the substring up to (and not including) the last period
306 and not including the directory unless -save-temps was specified
307 to put temporaries in a different location.
308 %B same as %b, but include the file suffix (text after the last period).
310 substitute a file name that has suffix SUFFIX and is chosen
311 once per compilation, and mark the argument a la %d. To reduce
312 exposure to denial-of-service attacks, the file name is now
313 chosen in a way that is hard to predict even when previously
314 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
315 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
316 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
317 had been pre-processed. Previously, %g was simply substituted
318 with a file name chosen once per compilation, without regard
319 to any appended suffix (which was therefore treated just like
320 ordinary text), making such attacks more likely to succeed.
322 like %g, but if -pipe is in effect, expands simply to "-".
324 like %g, but if -pipe is in effect, expands to nothing. (We have both
325 %| and %m to accommodate differences between system assemblers; see
326 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
328 like %g, but generates a new temporary file name even if %uSUFFIX
331 substitutes the last file name generated with %uSUFFIX, generating a
332 new one if there is no such last file name. In the absence of any
333 %uSUFFIX, this is just like %gSUFFIX, except they don't share
334 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
335 would involve the generation of two distinct file names, one
336 for each `%g.s' and another for each `%U.s'. Previously, %U was
337 simply substituted with a file name chosen for the previous %u,
338 without regard to any appended suffix.
340 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
341 writable, and if save-temps is off; otherwise, substitute the name
342 of a temporary file, just like %u. This temporary file is not
343 meant for communication between processes, but rather as a junk
346 substitutes .SUFFIX for the suffixes of a matched switch's args when
347 it is subsequently output with %*. SUFFIX is terminated by the next
349 %d marks the argument containing or following the %d as a
350 temporary file name, so that that file will be deleted if GCC exits
351 successfully. Unlike %g, this contributes no text to the argument.
352 %w marks the argument containing or following the %w as the
353 "output file" of this compilation. This puts the argument
354 into the sequence of arguments that %o will substitute later.
355 %V indicates that this compilation produces no "output file".
357 like %{...} but mark last argument supplied within
358 as a file to be deleted on failure.
359 %o substitutes the names of all the output files, with spaces
360 automatically placed around them. You should write spaces
361 around the %o as well or the results are undefined.
362 %o is for use in the specs for running the linker.
363 Input files whose names have no recognized suffix are not compiled
364 at all, but they are included among the output files, so they will
366 %O substitutes the suffix for object files. Note that this is
367 handled specially when it immediately follows %g, %u, or %U
368 (with or without a suffix argument) because of the need for
369 those to form complete file names. The handling is such that
370 %O is treated exactly as if it had already been substituted,
371 except that %g, %u, and %U do not currently support additional
372 SUFFIX characters following %O as they would following, for
374 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
375 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
376 and -B options) and -imultilib as necessary.
377 %s current argument is the name of a library or startup file of some sort.
378 Search for that file in a standard list of directories
379 and substitute the full name found.
380 %eSTR Print STR as an error message. STR is terminated by a newline.
381 Use this when inconsistent options are detected.
382 %nSTR Print STR as a notice. STR is terminated by a newline.
383 %x{OPTION} Accumulate an option for %X.
384 %X Output the accumulated linker options specified by compilations.
385 %Y Output the accumulated assembler options specified by compilations.
386 %Z Output the accumulated preprocessor options specified by compilations.
387 %a process ASM_SPEC as a spec.
388 This allows config.h to specify part of the spec for running as.
389 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
390 used here. This can be used to run a post-processor after the
391 assembler has done its job.
392 %D Dump out a -L option for each directory in startfile_prefixes.
393 If multilib_dir is set, extra entries are generated with it affixed.
394 %l process LINK_SPEC as a spec.
395 %L process LIB_SPEC as a spec.
396 %G process LIBGCC_SPEC as a spec.
397 %R Output the concatenation of target_system_root and
398 target_sysroot_suffix.
399 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
400 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
401 %C process CPP_SPEC as a spec.
402 %1 process CC1_SPEC as a spec.
403 %2 process CC1PLUS_SPEC as a spec.
404 %* substitute the variable part of a matched option. (See below.)
405 Note that each comma in the substituted string is replaced by
407 %<S remove all occurrences of -S from the command line.
408 Note - this command is position dependent. % commands in the
409 spec string before this one will see -S, % commands in the
410 spec string after this one will not.
411 %<S* remove all occurrences of all switches beginning with -S from the
414 Call the named function FUNCTION, passing it ARGS. ARGS is
415 first processed as a nested spec string, then split into an
416 argument vector in the usual fashion. The function returns
417 a string which is processed as if it had appeared literally
418 as part of the current spec.
419 %{S} substitutes the -S switch, if that switch was given to GCC.
420 If that switch was not specified, this substitutes nothing.
421 Here S is a metasyntactic variable.
422 %{S*} substitutes all the switches specified to GCC whose names start
423 with -S. This is used for -o, -I, etc; switches that take
424 arguments. GCC considers `-o foo' as being one switch whose
425 name starts with `o'. %{o*} would substitute this text,
426 including the space; thus, two arguments would be generated.
427 %{S*&T*} likewise, but preserve order of S and T options (the order
428 of S and T in the spec is not significant). Can be any number
429 of ampersand-separated variables; for each the wild card is
430 optional. Useful for CPP as %{D*&U*&A*}.
432 %{S:X} substitutes X, if the -S switch was given to GCC.
433 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
434 %{S*:X} substitutes X if one or more switches whose names start
435 with -S was given to GCC. Normally X is substituted only
436 once, no matter how many such switches appeared. However,
437 if %* appears somewhere in X, then X will be substituted
438 once for each matching switch, with the %* replaced by the
439 part of that switch that matched the '*'.
440 %{.S:X} substitutes X, if processing a file with suffix S.
441 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
442 %{,S:X} substitutes X, if processing a file which will use spec S.
443 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
445 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
446 combined with '!', '.', ',', and '*' as above binding stronger
448 If %* appears in X, all of the alternatives must be starred, and
449 only the first matching alternative is substituted.
450 %{S:X; if S was given to GCC, substitutes X;
451 T:Y; else if T was given to GCC, substitutes Y;
452 :D} else substitutes D. There can be as many clauses as you need.
453 This may be combined with '.', '!', ',', '|', and '*' as above.
455 %(Spec) processes a specification defined in a specs file as *Spec:
456 %[Spec] as above, but put __ around -D arguments
458 The conditional text X in a %{S:X} or similar construct may contain
459 other nested % constructs or spaces, or even newlines. They are
460 processed as usual, as described above. Trailing white space in X is
461 ignored. White space may also appear anywhere on the left side of the
462 colon in these constructs, except between . or * and the corresponding
465 The -O, -f, -m, and -W switches are handled specifically in these
466 constructs. If another value of -O or the negated form of a -f, -m, or
467 -W switch is found later in the command line, the earlier switch
468 value is ignored, except with {S*} where S is just one letter; this
469 passes all matching options.
471 The character | at the beginning of the predicate text is used to indicate
472 that a command should be piped to the following command, but only if -pipe
475 Note that it is built into GCC which switches take arguments and which
476 do not. You might think it would be useful to generalize this to
477 allow each compiler's spec to say which switches take arguments. But
478 this cannot be done in a consistent fashion. GCC cannot even decide
479 which input files have been specified without knowing which switches
480 take arguments, and it must know which input files to compile in order
481 to tell which compilers to run.
483 GCC also knows implicitly that arguments starting in `-l' are to be
484 treated as compiler output files, and passed to the linker in their
485 proper position among the other output files. */
487 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
489 /* config.h can define ASM_SPEC to provide extra args to the assembler
490 or extra switch-translations. */
495 /* config.h can define ASM_FINAL_SPEC to run a post processor after
496 the assembler has run. */
497 #ifndef ASM_FINAL_SPEC
498 #define ASM_FINAL_SPEC ""
501 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
502 or extra switch-translations. */
507 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
508 or extra switch-translations. */
513 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
514 or extra switch-translations. */
516 #define CC1PLUS_SPEC ""
519 /* config.h can define LINK_SPEC to provide extra args to the linker
520 or extra switch-translations. */
525 /* config.h can define LIB_SPEC to override the default libraries. */
527 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
532 /* XXX: valid only for GNU ld */
533 /* XXX: should exactly match hooks provided by libmudflap.a */
534 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
535 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
536 --wrap=mmap --wrap=munmap --wrap=alloca\
537 } %{fmudflapth: --wrap=pthread_create\
538 }} %{fmudflap|fmudflapth: --wrap=main}"
541 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
544 /* When using -fsplit-stack we need to wrap pthread_create, in order
545 to initialize the stack guard. We always use wrapping, rather than
546 shared library ordering, and we keep the wrapper function in
547 libgcc. This is not yet a real spec, though it could become one;
548 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
549 only works with GNU ld and gold. FIXME: This is incompatible with
550 -fmudflap when linking statically, which wants to do its own
552 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
554 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
557 #if defined(REAL_LIBGCC_SPEC)
558 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
559 #elif defined(LINK_LIBGCC_SPECIAL_1)
560 /* Have gcc do the search for libgcc.a. */
561 #define LIBGCC_SPEC "libgcc.a%s"
563 #define LIBGCC_SPEC "-lgcc"
567 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
568 #ifndef STARTFILE_SPEC
569 #define STARTFILE_SPEC \
570 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
573 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
575 #define ENDFILE_SPEC ""
579 #define LINKER_NAME "collect2"
582 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
583 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
588 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
590 #ifndef ASM_DEBUG_SPEC
591 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
592 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
593 # define ASM_DEBUG_SPEC \
594 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
595 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
596 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
598 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
599 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
601 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
602 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
606 #ifndef ASM_DEBUG_SPEC
607 # define ASM_DEBUG_SPEC ""
610 /* Here is the spec for running the linker, after compiling all files. */
612 /* This is overridable by the target in case they need to specify the
613 -lgcc and -lc order specially, yet not require them to override all
614 of LINK_COMMAND_SPEC. */
615 #ifndef LINK_GCC_C_SEQUENCE_SPEC
616 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
619 #ifndef LINK_SSP_SPEC
620 #ifdef TARGET_LIBC_PROVIDES_SSP
621 #define LINK_SSP_SPEC "%{fstack-protector:}"
623 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
627 #ifndef LINK_PIE_SPEC
629 #define LINK_PIE_SPEC "%{pie:-pie} "
631 #define LINK_PIE_SPEC "%{pie:} "
635 #ifndef LINK_BUILDID_SPEC
636 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
637 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
642 /* -u* was put back because both BSD and SysV seem to support it. */
643 /* %{static:} simply prevents an error message if the target machine
644 doesn't handle -static. */
645 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
646 scripts which exist in user specified directories, or in standard
648 /* We pass any -flto flags on to the linker, which is expected
649 to understand them. In practice, this means it had better be collect2. */
650 #ifndef LINK_COMMAND_SPEC
651 #define LINK_COMMAND_SPEC "\
652 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
654 %{fuse-linker-plugin: \
655 -plugin %(linker_plugin_file) \
656 -plugin-opt=%(lto_wrapper) \
657 -plugin-opt=-fresolution=%u.res \
658 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
659 %{static:-plugin-opt=-pass-through=-lc} \
661 %{flto*:%<fcompare-debug*} \
662 %{flto*} %l " LINK_PIE_SPEC \
663 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
664 %{s} %{t} %{u*} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
665 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
666 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
667 %(mflib) " STACK_SPLIT_SPEC "\
668 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
669 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
670 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
673 #ifndef LINK_LIBGCC_SPEC
674 /* Generate -L options for startfile prefix list. */
675 # define LINK_LIBGCC_SPEC "%D"
678 #ifndef STARTFILE_PREFIX_SPEC
679 # define STARTFILE_PREFIX_SPEC ""
683 # define SYSROOT_SPEC "--sysroot=%R"
686 #ifndef SYSROOT_SUFFIX_SPEC
687 # define SYSROOT_SUFFIX_SPEC ""
690 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
691 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
694 static const char *asm_debug
;
695 static const char *cpp_spec
= CPP_SPEC
;
696 static const char *cc1_spec
= CC1_SPEC
;
697 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
698 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
699 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
700 static const char *asm_spec
= ASM_SPEC
;
701 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
702 static const char *link_spec
= LINK_SPEC
;
703 static const char *lib_spec
= LIB_SPEC
;
704 static const char *mfwrap_spec
= MFWRAP_SPEC
;
705 static const char *mflib_spec
= MFLIB_SPEC
;
706 static const char *link_gomp_spec
= "";
707 static const char *libgcc_spec
= LIBGCC_SPEC
;
708 static const char *endfile_spec
= ENDFILE_SPEC
;
709 static const char *startfile_spec
= STARTFILE_SPEC
;
710 static const char *linker_name_spec
= LINKER_NAME
;
711 static const char *linker_plugin_file_spec
= "";
712 static const char *lto_wrapper_spec
= "";
713 static const char *lto_gcc_spec
= "";
714 static const char *lto_libgcc_spec
= "";
715 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
716 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
717 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
718 static const char *sysroot_spec
= SYSROOT_SPEC
;
719 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
720 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
722 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
723 There should be no need to override these in target dependent files,
724 but we need to copy them to the specs file so that newer versions
725 of the GCC driver can correctly drive older tool chains with the
726 appropriate -B options. */
728 /* When cpplib handles traditional preprocessing, get rid of this, and
729 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
730 that we default the front end language better. */
731 static const char *trad_capable_cpp
=
732 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
734 /* We don't wrap .d files in %W{} since a missing .d file, and
735 therefore no dependency entry, confuses make into thinking a .o
736 file that happens to exist is up-to-date. */
737 static const char *cpp_unique_options
=
738 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
739 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
740 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
741 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
742 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
743 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
744 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
745 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
746 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
747 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
750 /* This contains cpp options which are common with cc1_options and are passed
751 only when preprocessing only to avoid duplication. We pass the cc1 spec
752 options to the preprocessor so that it the cc1 spec may manipulate
753 options used to set target flags. Those special target flags settings may
754 in turn cause preprocessor symbols to be defined specially. */
755 static const char *cpp_options
=
756 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
757 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
758 %{undef} %{save-temps*:-fpch-preprocess}";
760 /* This contains cpp options which are not passed when the preprocessor
761 output will be used by another program. */
762 static const char *cpp_debug_options
= "%{d*}";
764 /* NB: This is shared amongst all front-ends, except for Ada. */
765 static const char *cc1_options
=
766 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
767 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
768 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
769 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
770 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
771 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
772 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
773 %{Qn:-fno-ident} %{-help:--help}\
774 %{-target-help:--target-help}\
775 %{-version:--version}\
776 %{-help=*:--help=%*}\
777 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
778 %{fsyntax-only:-o %j} %{-param*}\
779 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
780 %{coverage:-fprofile-arcs -ftest-coverage}";
782 static const char *asm_options
=
783 "%{--target-help:%:print-asm-header()} "
785 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
786 to the assembler equivalents. */
787 "%{v} %{w:-W} %{I*} "
789 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
791 static const char *invoke_as
=
792 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
794 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
795 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
799 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
800 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
804 /* Some compilers have limits on line lengths, and the multilib_select
805 and/or multilib_matches strings can be very long, so we build them at
807 static struct obstack multilib_obstack
;
808 static const char *multilib_select
;
809 static const char *multilib_matches
;
810 static const char *multilib_defaults
;
811 static const char *multilib_exclusions
;
813 /* Check whether a particular argument is a default argument. */
815 #ifndef MULTILIB_DEFAULTS
816 #define MULTILIB_DEFAULTS { "" }
819 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
821 #ifndef DRIVER_SELF_SPECS
822 #define DRIVER_SELF_SPECS ""
825 /* Adding -fopenmp should imply pthreads. This is particularly important
826 for targets that use different start files and suchlike. */
827 #ifndef GOMP_SELF_SPECS
828 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
831 static const char *const driver_self_specs
[] = {
832 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
833 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
836 #ifndef OPTION_DEFAULT_SPECS
837 #define OPTION_DEFAULT_SPECS { "", "" }
846 static const struct default_spec
847 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
851 struct user_specs
*next
;
852 const char *filename
;
855 static struct user_specs
*user_specs_head
, *user_specs_tail
;
858 /* Record the mapping from file suffixes for compilation specs. */
862 const char *suffix
; /* Use this compiler for input files
863 whose names end in this suffix. */
865 const char *spec
; /* To use this compiler, run this spec. */
867 const char *cpp_spec
; /* If non-NULL, substitute this spec
868 for `%C', rather than the usual
870 const int combinable
; /* If nonzero, compiler can deal with
871 multiple source files at once (IMA). */
872 const int needs_preprocessing
; /* If nonzero, source files need to
873 be run through a preprocessor. */
876 /* Pointer to a vector of `struct compiler' that gives the spec for
877 compiling a file, based on its suffix.
878 A file that does not end in any of these suffixes will be passed
879 unchanged to the loader and nothing else will be done to it.
881 An entry containing two 0s is used to terminate the vector.
883 If multiple entries match a file, the last matching one is used. */
885 static struct compiler
*compilers
;
887 /* Number of entries in `compilers', not counting the null terminator. */
889 static int n_compilers
;
891 /* The default list of file name suffixes and their compilation specs. */
893 static const struct compiler default_compilers
[] =
895 /* Add lists of suffixes of known languages here. If those languages
896 were not present when we built the driver, we will hit these copies
897 and be given a more meaningful error than "file not used since
898 linking is not done". */
899 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
900 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
901 {".mii", "#Objective-C++", 0, 0, 0},
902 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
903 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
904 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
905 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
906 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
907 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
908 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
909 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
910 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
911 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
912 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
913 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
914 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
915 {".r", "#Ratfor", 0, 0, 0},
916 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
917 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
918 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
919 /* Next come the entries for C. */
920 {".c", "@c", 0, 0, 1},
922 /* cc1 has an integrated ISO C preprocessor. We should invoke the
923 external preprocessor if -save-temps is given. */
924 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
926 %{traditional|ftraditional:\
927 %eGNU C no longer supports -traditional without -E}\
928 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
929 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
930 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
932 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
933 cc1 %(cpp_unique_options) %(cc1_options)}}}\
934 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
936 "%{!E:%e-E or -x required when input is from standard input}\
937 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
938 {".h", "@c-header", 0, 0, 0},
940 /* cc1 has an integrated ISO C preprocessor. We should invoke the
941 external preprocessor if -save-temps is given. */
942 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
944 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
945 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
946 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
948 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
949 %W{o*:--output-pch=%*}}%V}\
950 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
951 cc1 %(cpp_unique_options) %(cc1_options)\
952 %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
953 %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
954 {".i", "@cpp-output", 0, 0, 0},
956 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
957 {".s", "@assembler", 0, 1, 0},
959 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
960 {".sx", "@assembler-with-cpp", 0, 1, 0},
961 {".S", "@assembler-with-cpp", 0, 1, 0},
962 {"@assembler-with-cpp",
963 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
964 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
965 %{E|M|MM:%(cpp_debug_options)}\
966 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
967 as %(asm_debug) %(asm_options) %|.s %A }}}}"
969 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
970 %{E|M|MM:%(cpp_debug_options)}\
971 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
972 as %(asm_debug) %(asm_options) %m.s %A }}}}"
977 /* Mark end of table. */
981 /* Number of elements in default_compilers, not counting the terminator. */
983 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
985 /* A vector of options to give to the linker.
986 These options are accumulated by %x,
987 and substituted into the linker command with %X. */
988 static int n_linker_options
;
989 static char **linker_options
;
991 /* A vector of options to give to the assembler.
992 These options are accumulated by -Wa,
993 and substituted into the assembler command with %Y. */
994 static int n_assembler_options
;
995 static char **assembler_options
;
997 /* A vector of options to give to the preprocessor.
998 These options are accumulated by -Wp,
999 and substituted into the preprocessor command with %Z. */
1000 static int n_preprocessor_options
;
1001 static char **preprocessor_options
;
1004 skip_whitespace (char *p
)
1008 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1009 be considered whitespace. */
1010 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1012 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1026 /* Structures to keep track of prefixes to try when looking for files. */
1030 const char *prefix
; /* String to prepend to the path. */
1031 struct prefix_list
*next
; /* Next in linked list. */
1032 int require_machine_suffix
; /* Don't use without machine_suffix. */
1033 /* 2 means try both machine_suffix and just_machine_suffix. */
1034 int priority
; /* Sort key - priority within list. */
1035 int os_multilib
; /* 1 if OS multilib scheme should be used,
1036 0 for GCC multilib scheme. */
1041 struct prefix_list
*plist
; /* List of prefixes to try */
1042 int max_len
; /* Max length of a prefix in PLIST */
1043 const char *name
; /* Name of this list (used in config stuff) */
1046 /* List of prefixes to try when looking for executables. */
1048 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1050 /* List of prefixes to try when looking for startup (crt0) files. */
1052 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1054 /* List of prefixes to try when looking for include files. */
1056 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1058 /* Suffix to attach to directories searched for commands.
1059 This looks like `MACHINE/VERSION/'. */
1061 static const char *machine_suffix
= 0;
1063 /* Suffix to attach to directories searched for commands.
1064 This is just `MACHINE/'. */
1066 static const char *just_machine_suffix
= 0;
1068 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1070 static const char *gcc_exec_prefix
;
1072 /* Adjusted value of standard_libexec_prefix. */
1074 static const char *gcc_libexec_prefix
;
1076 /* Default prefixes to attach to command names. */
1078 #ifndef STANDARD_STARTFILE_PREFIX_1
1079 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1081 #ifndef STANDARD_STARTFILE_PREFIX_2
1082 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1085 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1086 #undef MD_EXEC_PREFIX
1087 #undef MD_STARTFILE_PREFIX
1088 #undef MD_STARTFILE_PREFIX_1
1091 /* If no prefixes defined, use the null string, which will disable them. */
1092 #ifndef MD_EXEC_PREFIX
1093 #define MD_EXEC_PREFIX ""
1095 #ifndef MD_STARTFILE_PREFIX
1096 #define MD_STARTFILE_PREFIX ""
1098 #ifndef MD_STARTFILE_PREFIX_1
1099 #define MD_STARTFILE_PREFIX_1 ""
1102 /* These directories are locations set at configure-time based on the
1103 --prefix option provided to configure. Their initializers are
1104 defined in Makefile.in. These paths are not *directly* used when
1105 gcc_exec_prefix is set because, in that case, we know where the
1106 compiler has been installed, and use paths relative to that
1107 location instead. */
1108 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1109 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1110 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1111 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1113 /* For native compilers, these are well-known paths containing
1114 components that may be provided by the system. For cross
1115 compilers, these paths are not used. */
1116 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1117 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1118 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1119 static const char *const standard_startfile_prefix_1
1120 = STANDARD_STARTFILE_PREFIX_1
;
1121 static const char *const standard_startfile_prefix_2
1122 = STANDARD_STARTFILE_PREFIX_2
;
1124 /* A relative path to be used in finding the location of tools
1125 relative to the driver. */
1126 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1128 /* Subdirectory to use for locating libraries. Set by
1129 set_multilib_dir based on the compilation options. */
1131 static const char *multilib_dir
;
1133 /* Subdirectory to use for locating libraries in OS conventions. Set by
1134 set_multilib_dir based on the compilation options. */
1136 static const char *multilib_os_dir
;
1138 /* Structure to keep track of the specs that have been defined so far.
1139 These are accessed using %(specname) or %[specname] in a compiler
1144 /* The following 2 fields must be first */
1145 /* to allow EXTRA_SPECS to be initialized */
1146 const char *name
; /* name of the spec. */
1147 const char *ptr
; /* available ptr if no static pointer */
1149 /* The following fields are not initialized */
1150 /* by EXTRA_SPECS */
1151 const char **ptr_spec
; /* pointer to the spec itself. */
1152 struct spec_list
*next
; /* Next spec in linked list. */
1153 int name_len
; /* length of the name */
1154 int alloc_p
; /* whether string was allocated */
1157 #define INIT_STATIC_SPEC(NAME,PTR) \
1158 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1160 /* List of statically defined specs. */
1161 static struct spec_list static_specs
[] =
1163 INIT_STATIC_SPEC ("asm", &asm_spec
),
1164 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1165 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1166 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1167 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1168 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1169 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1170 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1171 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1172 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1173 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1174 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1175 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1176 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1177 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1178 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1179 INIT_STATIC_SPEC ("link", &link_spec
),
1180 INIT_STATIC_SPEC ("lib", &lib_spec
),
1181 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1182 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1183 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1184 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1185 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1186 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1187 INIT_STATIC_SPEC ("version", &compiler_version
),
1188 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1189 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1190 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1191 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1192 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1193 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1194 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1195 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1196 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1197 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1198 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1199 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1200 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1201 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1202 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1203 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1204 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1205 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1206 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1209 #ifdef EXTRA_SPECS /* additional specs needed */
1210 /* Structure to keep track of just the first two args of a spec_list.
1211 That is all that the EXTRA_SPECS macro gives us. */
1214 const char *const name
;
1215 const char *const ptr
;
1218 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1219 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1222 /* List of dynamically allocates specs that have been defined so far. */
1224 static struct spec_list
*specs
= (struct spec_list
*) 0;
1226 /* List of static spec functions. */
1228 static const struct spec_function static_spec_functions
[] =
1230 { "getenv", getenv_spec_function
},
1231 { "if-exists", if_exists_spec_function
},
1232 { "if-exists-else", if_exists_else_spec_function
},
1233 { "replace-outfile", replace_outfile_spec_function
},
1234 { "remove-outfile", remove_outfile_spec_function
},
1235 { "version-compare", version_compare_spec_function
},
1236 { "include", include_spec_function
},
1237 { "find-file", find_file_spec_function
},
1238 { "find-plugindir", find_plugindir_spec_function
},
1239 { "print-asm-header", print_asm_header_spec_function
},
1240 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1241 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1242 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1243 #ifdef EXTRA_SPEC_FUNCTIONS
1244 EXTRA_SPEC_FUNCTIONS
1249 static int processing_spec_function
;
1251 /* Add appropriate libgcc specs to OBSTACK, taking into account
1252 various permutations of -shared-libgcc, -shared, and such. */
1254 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1256 #ifndef USE_LD_AS_NEEDED
1257 #define USE_LD_AS_NEEDED 0
1261 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1262 const char *static_name
, const char *eh_name
)
1266 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1267 "%{!static:%{!static-libgcc:"
1268 #if USE_LD_AS_NEEDED
1269 "%{!shared-libgcc:",
1270 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1273 shared_name
, "%{!shared: ", static_name
, "}"
1277 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1278 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1282 "%{shared-libgcc:", shared_name
, "}"
1283 "%{!shared-libgcc:", static_name
, "}"
1286 "%{shared:", shared_name
, "}"
1291 obstack_grow (obstack
, buf
, strlen (buf
));
1294 #endif /* ENABLE_SHARED_LIBGCC */
1296 /* Initialize the specs lookup routines. */
1301 struct spec_list
*next
= (struct spec_list
*) 0;
1302 struct spec_list
*sl
= (struct spec_list
*) 0;
1306 return; /* Already initialized. */
1309 fnotice (stderr
, "Using built-in specs.\n");
1312 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1314 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1316 sl
= &extra_specs
[i
];
1317 sl
->name
= extra_specs_1
[i
].name
;
1318 sl
->ptr
= extra_specs_1
[i
].ptr
;
1320 sl
->name_len
= strlen (sl
->name
);
1321 sl
->ptr_spec
= &sl
->ptr
;
1326 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1328 sl
= &static_specs
[i
];
1333 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1334 /* ??? If neither -shared-libgcc nor --static-libgcc was
1335 seen, then we should be making an educated guess. Some proposed
1336 heuristics for ELF include:
1338 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1339 program will be doing dynamic loading, which will likely
1340 need the shared libgcc.
1342 (2) If "-ldl", then it's also a fair bet that we're doing
1345 (3) For each ET_DYN we're linking against (either through -lfoo
1346 or /some/path/foo.so), check to see whether it or one of
1347 its dependencies depends on a shared libgcc.
1351 If the runtime is fixed to look for program headers instead
1352 of calling __register_frame_info at all, for each object,
1353 use the shared libgcc if any EH symbol referenced.
1355 If crtstuff is fixed to not invoke __register_frame_info
1356 automatically, for each object, use the shared libgcc if
1357 any non-empty unwind section found.
1359 Doing any of this probably requires invoking an external program to
1360 do the actual object file scanning. */
1362 const char *p
= libgcc_spec
;
1365 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1366 when given the proper command line arguments. */
1369 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1371 init_gcc_specs (&obstack
,
1373 #ifdef USE_LIBUNWIND_EXCEPTIONS
1379 #ifdef USE_LIBUNWIND_EXCEPTIONS
1380 # ifdef HAVE_LD_STATIC_DYNAMIC
1381 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1391 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1393 /* Ug. We don't know shared library extensions. Hope that
1394 systems that use this form don't do shared libraries. */
1395 init_gcc_specs (&obstack
,
1399 #ifdef USE_LIBUNWIND_EXCEPTIONS
1408 obstack_1grow (&obstack
, *p
);
1409 in_sep
= (*p
== ' ');
1414 obstack_1grow (&obstack
, '\0');
1415 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1418 #ifdef USE_AS_TRADITIONAL_FORMAT
1419 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1421 static const char tf
[] = "--traditional-format ";
1422 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1423 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1424 asm_spec
= XOBFINISH (&obstack
, const char *);
1428 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1429 # ifdef LINK_BUILDID_SPEC
1430 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1431 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1433 # ifdef LINK_EH_SPEC
1434 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1435 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1437 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1438 link_spec
= XOBFINISH (&obstack
, const char *);
1444 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1445 removed; If the spec starts with a + then SPEC is added to the end of the
1449 set_spec (const char *name
, const char *spec
)
1451 struct spec_list
*sl
;
1452 const char *old_spec
;
1453 int name_len
= strlen (name
);
1456 /* If this is the first call, initialize the statically allocated specs. */
1459 struct spec_list
*next
= (struct spec_list
*) 0;
1460 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1462 sl
= &static_specs
[i
];
1469 /* See if the spec already exists. */
1470 for (sl
= specs
; sl
; sl
= sl
->next
)
1471 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1476 /* Not found - make it. */
1477 sl
= XNEW (struct spec_list
);
1478 sl
->name
= xstrdup (name
);
1479 sl
->name_len
= name_len
;
1480 sl
->ptr_spec
= &sl
->ptr
;
1482 *(sl
->ptr_spec
) = "";
1487 old_spec
= *(sl
->ptr_spec
);
1488 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1489 ? concat (old_spec
, spec
+ 1, NULL
)
1494 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1497 /* Free the old spec. */
1498 if (old_spec
&& sl
->alloc_p
)
1499 free (CONST_CAST(char *, old_spec
));
1504 /* Accumulate a command (program name and args), and run it. */
1506 /* Vector of pointers to arguments in the current line of specifications. */
1508 static const char **argbuf
;
1510 /* Number of elements allocated in argbuf. */
1512 static int argbuf_length
;
1514 /* Number of elements in argbuf currently in use (containing args). */
1516 static int argbuf_index
;
1518 /* Position in the argbuf array containing the name of the output file
1519 (the value associated with the "-o" flag). */
1521 static int have_o_argbuf_index
= 0;
1523 /* Were the options -c, -S or -E passed. */
1524 static int have_c
= 0;
1526 /* Was the option -o passed. */
1527 static int have_o
= 0;
1529 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1530 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1533 static struct temp_name
{
1534 const char *suffix
; /* suffix associated with the code. */
1535 int length
; /* strlen (suffix). */
1536 int unique
; /* Indicates whether %g or %u/%U was used. */
1537 const char *filename
; /* associated filename. */
1538 int filename_length
; /* strlen (filename). */
1539 struct temp_name
*next
;
1542 /* Number of commands executed so far. */
1544 static int execution_count
;
1546 /* Number of commands that exited with a signal. */
1548 static int signal_count
;
1550 /* Allocate the argument vector. */
1556 argbuf
= XNEWVEC (const char *, argbuf_length
);
1559 /* Clear out the vector of arguments (after a command is executed). */
1567 /* Add one argument to the vector at the end.
1568 This is done when a space is seen or at the end of the line.
1569 If DELETE_ALWAYS is nonzero, the arg is a filename
1570 and the file should be deleted eventually.
1571 If DELETE_FAILURE is nonzero, the arg is a filename
1572 and the file should be deleted if this compilation fails. */
1575 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1577 if (argbuf_index
+ 1 == argbuf_length
)
1578 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
1580 argbuf
[argbuf_index
++] = arg
;
1581 argbuf
[argbuf_index
] = 0;
1583 if (strcmp (arg
, "-o") == 0)
1584 have_o_argbuf_index
= argbuf_index
;
1585 if (delete_always
|| delete_failure
)
1588 /* If the temporary file we should delete is specified as
1589 part of a joined argument extract the filename. */
1591 && (p
= strrchr (arg
, '=')))
1593 record_temp_file (arg
, delete_always
, delete_failure
);
1597 /* Load specs from a file name named FILENAME, replacing occurrences of
1598 various different types of line-endings, \r\n, \n\r and just \r, with
1602 load_specs (const char *filename
)
1606 struct stat statbuf
;
1613 fnotice (stderr
, "Reading specs from %s\n", filename
);
1615 /* Open and stat the file. */
1616 desc
= open (filename
, O_RDONLY
, 0);
1618 pfatal_with_name (filename
);
1619 if (stat (filename
, &statbuf
) < 0)
1620 pfatal_with_name (filename
);
1622 /* Read contents of file into BUFFER. */
1623 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
1624 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1626 pfatal_with_name (filename
);
1627 buffer
[readlen
] = 0;
1630 specs
= XNEWVEC (char, readlen
+ 1);
1632 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1638 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1640 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1654 /* Read compilation specs from a file named FILENAME,
1655 replacing the default ones.
1657 A suffix which starts with `*' is a definition for
1658 one of the machine-specific sub-specs. The "suffix" should be
1659 *asm, *cc1, *cpp, *link, *startfile, etc.
1660 The corresponding spec is stored in asm_spec, etc.,
1661 rather than in the `compilers' vector.
1663 Anything invalid in the file is a fatal error. */
1666 read_specs (const char *filename
, int main_p
)
1671 buffer
= load_specs (filename
);
1673 /* Scan BUFFER for specs, putting them in the vector. */
1679 char *in
, *out
, *p1
, *p2
, *p3
;
1681 /* Advance P in BUFFER to the next nonblank nocomment line. */
1682 p
= skip_whitespace (p
);
1686 /* Is this a special command that starts with '%'? */
1687 /* Don't allow this for the main specs file, since it would
1688 encourage people to overwrite it. */
1689 if (*p
== '%' && !main_p
)
1692 while (*p
&& *p
!= '\n')
1698 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1699 && (p1
[sizeof "%include" - 1] == ' '
1700 || p1
[sizeof "%include" - 1] == '\t'))
1704 p1
+= sizeof ("%include");
1705 while (*p1
== ' ' || *p1
== '\t')
1708 if (*p1
++ != '<' || p
[-2] != '>')
1709 fatal_error ("specs %%include syntax malformed after "
1711 (long) (p1
- buffer
+ 1));
1714 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1715 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1718 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1719 && (p1
[sizeof "%include_noerr" - 1] == ' '
1720 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1724 p1
+= sizeof "%include_noerr";
1725 while (*p1
== ' ' || *p1
== '\t')
1728 if (*p1
++ != '<' || p
[-2] != '>')
1729 fatal_error ("specs %%include syntax malformed after "
1731 (long) (p1
- buffer
+ 1));
1734 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
1736 read_specs (new_filename
, FALSE
);
1737 else if (verbose_flag
)
1738 fnotice (stderr
, "could not find specs file %s\n", p1
);
1741 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1742 && (p1
[sizeof "%rename" - 1] == ' '
1743 || p1
[sizeof "%rename" - 1] == '\t'))
1746 struct spec_list
*sl
;
1747 struct spec_list
*newsl
;
1749 /* Get original name. */
1750 p1
+= sizeof "%rename";
1751 while (*p1
== ' ' || *p1
== '\t')
1754 if (! ISALPHA ((unsigned char) *p1
))
1755 fatal_error ("specs %%rename syntax malformed after "
1757 (long) (p1
- buffer
));
1760 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1763 if (*p2
!= ' ' && *p2
!= '\t')
1764 fatal_error ("specs %%rename syntax malformed after "
1766 (long) (p2
- buffer
));
1770 while (*p2
== ' ' || *p2
== '\t')
1773 if (! ISALPHA ((unsigned char) *p2
))
1774 fatal_error ("specs %%rename syntax malformed after "
1776 (long) (p2
- buffer
));
1778 /* Get new spec name. */
1780 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1784 fatal_error ("specs %%rename syntax malformed after "
1786 (long) (p3
- buffer
));
1789 for (sl
= specs
; sl
; sl
= sl
->next
)
1790 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1794 fatal_error ("specs %s spec was not found to be renamed", p1
);
1796 if (strcmp (p1
, p2
) == 0)
1799 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1800 if (strcmp (newsl
->name
, p2
) == 0)
1801 fatal_error ("%s: attempt to rename spec %qs to "
1802 "already defined spec %qs",
1807 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
1809 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1813 set_spec (p2
, *(sl
->ptr_spec
));
1815 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
1817 *(sl
->ptr_spec
) = "";
1822 fatal_error ("specs unknown %% command after %ld characters",
1823 (long) (p1
- buffer
));
1826 /* Find the colon that should end the suffix. */
1828 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1831 /* The colon shouldn't be missing. */
1833 fatal_error ("specs file malformed after %ld characters",
1834 (long) (p1
- buffer
));
1836 /* Skip back over trailing whitespace. */
1838 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1841 /* Copy the suffix to a string. */
1842 suffix
= save_string (p
, p2
- p
);
1843 /* Find the next line. */
1844 p
= skip_whitespace (p1
+ 1);
1846 fatal_error ("specs file malformed after %ld characters",
1847 (long) (p
- buffer
));
1850 /* Find next blank line or end of string. */
1851 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1854 /* Specs end at the blank line and do not include the newline. */
1855 spec
= save_string (p
, p1
- p
);
1858 /* Delete backslash-newline sequences from the spec. */
1863 if (in
[0] == '\\' && in
[1] == '\n')
1865 else if (in
[0] == '#')
1866 while (*in
&& *in
!= '\n')
1874 if (suffix
[0] == '*')
1876 if (! strcmp (suffix
, "*link_command"))
1877 link_command_spec
= spec
;
1879 set_spec (suffix
+ 1, spec
);
1883 /* Add this pair to the vector. */
1885 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
1887 compilers
[n_compilers
].suffix
= suffix
;
1888 compilers
[n_compilers
].spec
= spec
;
1890 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1894 link_command_spec
= spec
;
1897 if (link_command_spec
== 0)
1898 fatal_error ("spec file has no spec for linking");
1901 /* Record the names of temporary files we tell compilers to write,
1902 and delete them at the end of the run. */
1904 /* This is the common prefix we use to make temp file names.
1905 It is chosen once for each run of this program.
1906 It is substituted into a spec by %g or %j.
1907 Thus, all temp file names contain this prefix.
1908 In practice, all temp file names start with this prefix.
1910 This prefix comes from the envvar TMPDIR if it is defined;
1911 otherwise, from the P_tmpdir macro if that is defined;
1912 otherwise, in /usr/tmp or /tmp;
1913 or finally the current directory if all else fails. */
1915 static const char *temp_filename
;
1917 /* Length of the prefix. */
1919 static int temp_filename_length
;
1921 /* Define the list of temporary files to delete. */
1926 struct temp_file
*next
;
1929 /* Queue of files to delete on success or failure of compilation. */
1930 static struct temp_file
*always_delete_queue
;
1931 /* Queue of files to delete on failure of compilation. */
1932 static struct temp_file
*failure_delete_queue
;
1934 /* Record FILENAME as a file to be deleted automatically.
1935 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1936 otherwise delete it in any case.
1937 FAIL_DELETE nonzero means delete it if a compilation step fails;
1938 otherwise delete it in any case. */
1941 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
1943 char *const name
= xstrdup (filename
);
1947 struct temp_file
*temp
;
1948 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1949 if (! strcmp (name
, temp
->name
))
1952 temp
= XNEW (struct temp_file
);
1953 temp
->next
= always_delete_queue
;
1955 always_delete_queue
= temp
;
1962 struct temp_file
*temp
;
1963 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1964 if (! strcmp (name
, temp
->name
))
1967 temp
= XNEW (struct temp_file
);
1968 temp
->next
= failure_delete_queue
;
1970 failure_delete_queue
= temp
;
1976 /* Delete all the temporary files whose names we previously recorded. */
1978 #ifndef DELETE_IF_ORDINARY
1979 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
1982 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
1983 if (unlink (NAME) < 0) \
1985 perror_with_name (NAME); \
1990 delete_if_ordinary (const char *name
)
1996 printf ("Delete %s? (y or n) ", name
);
2000 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2003 if (i
== 'y' || i
== 'Y')
2005 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2009 delete_temp_files (void)
2011 struct temp_file
*temp
;
2013 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2014 delete_if_ordinary (temp
->name
);
2015 always_delete_queue
= 0;
2018 /* Delete all the files to be deleted on error. */
2021 delete_failure_queue (void)
2023 struct temp_file
*temp
;
2025 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2026 delete_if_ordinary (temp
->name
);
2030 clear_failure_queue (void)
2032 failure_delete_queue
= 0;
2035 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2037 If DO_MULTI is true iterate over the paths twice, first with multilib
2038 suffix then without, otherwise iterate over the paths once without
2039 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2040 to avoid visiting the same path twice, but we could do better. For
2041 instance, /usr/lib/../lib is considered different from /usr/lib.
2042 At least EXTRA_SPACE chars past the end of the path passed to
2043 CALLBACK are available for use by the callback.
2044 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2046 Returns the value returned by CALLBACK. */
2049 for_each_path (const struct path_prefix
*paths
,
2052 void *(*callback
) (char *, void *),
2053 void *callback_info
)
2055 struct prefix_list
*pl
;
2056 const char *multi_dir
= NULL
;
2057 const char *multi_os_dir
= NULL
;
2058 const char *multi_suffix
;
2059 const char *just_multi_suffix
;
2062 bool skip_multi_dir
= false;
2063 bool skip_multi_os_dir
= false;
2065 multi_suffix
= machine_suffix
;
2066 just_multi_suffix
= just_machine_suffix
;
2067 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2069 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2070 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2071 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2073 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2074 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2078 size_t multi_dir_len
= 0;
2079 size_t multi_os_dir_len
= 0;
2081 size_t just_suffix_len
;
2085 multi_dir_len
= strlen (multi_dir
);
2087 multi_os_dir_len
= strlen (multi_os_dir
);
2088 suffix_len
= strlen (multi_suffix
);
2089 just_suffix_len
= strlen (just_multi_suffix
);
2093 len
= paths
->max_len
+ extra_space
+ 1;
2094 if (suffix_len
> multi_os_dir_len
)
2097 len
+= multi_os_dir_len
;
2098 path
= XNEWVEC (char, len
);
2101 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2103 len
= strlen (pl
->prefix
);
2104 memcpy (path
, pl
->prefix
, len
);
2106 /* Look first in MACHINE/VERSION subdirectory. */
2107 if (!skip_multi_dir
)
2109 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2110 ret
= callback (path
, callback_info
);
2115 /* Some paths are tried with just the machine (ie. target)
2116 subdir. This is used for finding as, ld, etc. */
2118 && pl
->require_machine_suffix
== 2)
2120 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2121 ret
= callback (path
, callback_info
);
2126 /* Now try the base path. */
2127 if (!pl
->require_machine_suffix
2128 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2130 const char *this_multi
;
2131 size_t this_multi_len
;
2133 if (pl
->os_multilib
)
2135 this_multi
= multi_os_dir
;
2136 this_multi_len
= multi_os_dir_len
;
2140 this_multi
= multi_dir
;
2141 this_multi_len
= multi_dir_len
;
2145 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2149 ret
= callback (path
, callback_info
);
2157 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2160 /* Run through the paths again, this time without multilibs.
2161 Don't repeat any we have already seen. */
2164 free (CONST_CAST (char *, multi_dir
));
2166 free (CONST_CAST (char *, multi_suffix
));
2167 multi_suffix
= machine_suffix
;
2168 free (CONST_CAST (char *, just_multi_suffix
));
2169 just_multi_suffix
= just_machine_suffix
;
2172 skip_multi_dir
= true;
2175 free (CONST_CAST (char *, multi_os_dir
));
2176 multi_os_dir
= NULL
;
2179 skip_multi_os_dir
= true;
2184 free (CONST_CAST (char *, multi_dir
));
2185 free (CONST_CAST (char *, multi_suffix
));
2186 free (CONST_CAST (char *, just_multi_suffix
));
2189 free (CONST_CAST (char *, multi_os_dir
));
2195 /* Callback for build_search_list. Adds path to obstack being built. */
2197 struct add_to_obstack_info
{
2204 add_to_obstack (char *path
, void *data
)
2206 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2208 if (info
->check_dir
&& !is_directory (path
, false))
2211 if (!info
->first_time
)
2212 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2214 obstack_grow (info
->ob
, path
, strlen (path
));
2216 info
->first_time
= false;
2220 /* Add or change the value of an environment variable, outputting the
2221 change to standard error if in verbose mode. */
2223 xputenv (const char *string
)
2226 fnotice (stderr
, "%s\n", string
);
2227 putenv (CONST_CAST (char *, string
));
2230 /* Build a list of search directories from PATHS.
2231 PREFIX is a string to prepend to the list.
2232 If CHECK_DIR_P is true we ensure the directory exists.
2233 If DO_MULTI is true, multilib paths are output first, then
2235 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2236 It is also used by the --print-search-dirs flag. */
2239 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2240 bool check_dir
, bool do_multi
)
2242 struct add_to_obstack_info info
;
2244 info
.ob
= &collect_obstack
;
2245 info
.check_dir
= check_dir
;
2246 info
.first_time
= true;
2248 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2249 obstack_1grow (&collect_obstack
, '=');
2251 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2253 obstack_1grow (&collect_obstack
, '\0');
2254 return XOBFINISH (&collect_obstack
, char *);
2257 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2261 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2264 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2267 /* Check whether NAME can be accessed in MODE. This is like access,
2268 except that it never considers directories to be executable. */
2271 access_check (const char *name
, int mode
)
2277 if (stat (name
, &st
) < 0
2278 || S_ISDIR (st
.st_mode
))
2282 return access (name
, mode
);
2285 /* Callback for find_a_file. Appends the file name to the directory
2286 path. If the resulting file exists in the right mode, return the
2287 full pathname to the file. */
2289 struct file_at_path_info
{
2298 file_at_path (char *path
, void *data
)
2300 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2301 size_t len
= strlen (path
);
2303 memcpy (path
+ len
, info
->name
, info
->name_len
);
2304 len
+= info
->name_len
;
2306 /* Some systems have a suffix for executable files.
2307 So try appending that first. */
2308 if (info
->suffix_len
)
2310 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2311 if (access_check (path
, info
->mode
) == 0)
2316 if (access_check (path
, info
->mode
) == 0)
2322 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2323 access to check permissions. If DO_MULTI is true, search multilib
2324 paths then non-multilib paths, otherwise do not search multilib paths.
2325 Return 0 if not found, otherwise return its name, allocated with malloc. */
2328 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2331 struct file_at_path_info info
;
2333 #ifdef DEFAULT_ASSEMBLER
2334 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2335 return xstrdup (DEFAULT_ASSEMBLER
);
2338 #ifdef DEFAULT_LINKER
2339 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2340 return xstrdup (DEFAULT_LINKER
);
2343 /* Determine the filename to execute (special case for absolute paths). */
2345 if (IS_ABSOLUTE_PATH (name
))
2347 if (access (name
, mode
) == 0)
2348 return xstrdup (name
);
2354 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2355 info
.name_len
= strlen (info
.name
);
2356 info
.suffix_len
= strlen (info
.suffix
);
2359 return (char*) for_each_path (pprefix
, do_multi
,
2360 info
.name_len
+ info
.suffix_len
,
2361 file_at_path
, &info
);
2364 /* Ranking of prefixes in the sort list. -B prefixes are put before
2367 enum path_prefix_priority
2369 PREFIX_PRIORITY_B_OPT
,
2370 PREFIX_PRIORITY_LAST
2373 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2374 order according to PRIORITY. Within each PRIORITY, new entries are
2377 If WARN is nonzero, we will warn if no file is found
2378 through this prefix. WARN should point to an int
2379 which will be set to 1 if this entry is used.
2381 COMPONENT is the value to be passed to update_path.
2383 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2384 the complete value of machine_suffix.
2385 2 means try both machine_suffix and just_machine_suffix. */
2388 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2389 const char *component
, /* enum prefix_priority */ int priority
,
2390 int require_machine_suffix
, int os_multilib
)
2392 struct prefix_list
*pl
, **prev
;
2395 for (prev
= &pprefix
->plist
;
2396 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2397 prev
= &(*prev
)->next
)
2400 /* Keep track of the longest prefix. */
2402 prefix
= update_path (prefix
, component
);
2403 len
= strlen (prefix
);
2404 if (len
> pprefix
->max_len
)
2405 pprefix
->max_len
= len
;
2407 pl
= XNEW (struct prefix_list
);
2408 pl
->prefix
= prefix
;
2409 pl
->require_machine_suffix
= require_machine_suffix
;
2410 pl
->priority
= priority
;
2411 pl
->os_multilib
= os_multilib
;
2413 /* Insert after PREV. */
2418 /* Same as add_prefix, but prepending target_system_root to prefix. */
2419 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2421 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2422 const char *component
,
2423 /* enum prefix_priority */ int priority
,
2424 int require_machine_suffix
, int os_multilib
)
2426 if (!IS_ABSOLUTE_PATH (prefix
))
2427 fatal_error ("system path %qs is not absolute", prefix
);
2429 if (target_system_root
)
2431 if (target_sysroot_suffix
)
2432 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2433 prefix
= concat (target_system_root
, prefix
, NULL
);
2435 /* We have to override this because GCC's notion of sysroot
2436 moves along with GCC. */
2440 add_prefix (pprefix
, prefix
, component
, priority
,
2441 require_machine_suffix
, os_multilib
);
2444 /* Execute the command specified by the arguments on the current line of spec.
2445 When using pipes, this includes several piped-together commands
2446 with `|' between them.
2448 Return 0 if successful, -1 if failed. */
2454 int n_commands
; /* # of command. */
2456 struct pex_obj
*pex
;
2459 const char *prog
; /* program name. */
2460 const char **argv
; /* vector of args. */
2463 struct command
*commands
; /* each command buffer with above info. */
2465 gcc_assert (!processing_spec_function
);
2469 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2470 argbuf
[0] = (string
) ? string
: argbuf
[0];
2471 insert_wrapper (wrapper_string
);
2474 /* Count # of piped commands. */
2475 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2476 if (strcmp (argbuf
[i
], "|") == 0)
2479 /* Get storage for each command. */
2480 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2482 /* Split argbuf into its separate piped processes,
2483 and record info about each one.
2484 Also search for the programs that are to be run. */
2486 commands
[0].prog
= argbuf
[0]; /* first command. */
2487 commands
[0].argv
= &argbuf
[0];
2489 if (!wrapper_string
)
2491 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2492 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2495 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2496 if (strcmp (argbuf
[i
], "|") == 0)
2497 { /* each command. */
2498 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2499 fatal_error ("-pipe not supported");
2501 argbuf
[i
] = 0; /* termination of command args. */
2502 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2503 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2504 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2507 commands
[n_commands
].argv
[0] = string
;
2511 argbuf
[argbuf_index
] = 0;
2513 /* If -v, print what we are about to do, and maybe query. */
2517 /* For help listings, put a blank line between sub-processes. */
2518 if (print_help_list
)
2519 fputc ('\n', stderr
);
2521 /* Print each piped command as a separate line. */
2522 for (i
= 0; i
< n_commands
; i
++)
2524 const char *const *j
;
2526 if (verbose_only_flag
)
2528 for (j
= commands
[i
].argv
; *j
; j
++)
2531 for (p
= *j
; *p
; ++p
)
2532 if (!ISALNUM ((unsigned char) *p
)
2533 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2537 fprintf (stderr
, " \"");
2538 for (p
= *j
; *p
; ++p
)
2540 if (*p
== '"' || *p
== '\\' || *p
== '$')
2541 fputc ('\\', stderr
);
2544 fputc ('"', stderr
);
2547 fprintf (stderr
, " %s", *j
);
2551 for (j
= commands
[i
].argv
; *j
; j
++)
2552 fprintf (stderr
, " %s", *j
);
2554 /* Print a pipe symbol after all but the last command. */
2555 if (i
+ 1 != n_commands
)
2556 fprintf (stderr
, " |");
2557 fprintf (stderr
, "\n");
2560 if (verbose_only_flag
!= 0)
2562 /* verbose_only_flag should act as if the spec was
2563 executed, so increment execution_count before
2564 returning. This prevents spurious warnings about
2565 unused linker input files, etc. */
2570 fnotice (stderr
, "\nGo ahead? (y or n) ");
2574 while (getchar () != '\n')
2577 if (i
!= 'y' && i
!= 'Y')
2582 #ifdef ENABLE_VALGRIND_CHECKING
2583 /* Run the each command through valgrind. To simplify prepending the
2584 path to valgrind and the option "-q" (for quiet operation unless
2585 something triggers), we allocate a separate argv array. */
2587 for (i
= 0; i
< n_commands
; i
++)
2593 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
2596 argv
= XALLOCAVEC (const char *, argc
+ 3);
2598 argv
[0] = VALGRIND_PATH
;
2600 for (j
= 2; j
< argc
+ 2; j
++)
2601 argv
[j
] = commands
[i
].argv
[j
- 2];
2604 commands
[i
].argv
= argv
;
2605 commands
[i
].prog
= argv
[0];
2609 /* Run each piped subprocess. */
2611 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
2612 ? PEX_RECORD_TIMES
: 0),
2613 progname
, temp_filename
);
2615 fatal_error ("pex_init failed: %m");
2617 for (i
= 0; i
< n_commands
; i
++)
2621 const char *string
= commands
[i
].argv
[0];
2623 errmsg
= pex_run (pex
,
2624 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
2625 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
2626 string
, CONST_CAST (char **, commands
[i
].argv
),
2631 fatal_error (errmsg
);
2635 pfatal_with_name (errmsg
);
2639 if (string
!= commands
[i
].prog
)
2640 free (CONST_CAST (char *, string
));
2645 /* Wait for all the subprocesses to finish. */
2649 struct pex_time
*times
= NULL
;
2652 statuses
= (int *) alloca (n_commands
* sizeof (int));
2653 if (!pex_get_status (pex
, n_commands
, statuses
))
2654 fatal_error ("failed to get exit status: %m");
2656 if (report_times
|| report_times_to_file
)
2658 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
2659 if (!pex_get_times (pex
, n_commands
, times
))
2660 fatal_error ("failed to get process times: %m");
2665 for (i
= 0; i
< n_commands
; ++i
)
2667 int status
= statuses
[i
];
2669 if (WIFSIGNALED (status
))
2672 /* SIGPIPE is a special case. It happens in -pipe mode
2673 when the compiler dies before the preprocessor is done,
2674 or the assembler dies before the compiler is done.
2675 There's generally been an error already, and this is
2676 just fallout. So don't generate another error unless
2677 we would otherwise have succeeded. */
2678 if (WTERMSIG (status
) == SIGPIPE
2679 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2686 internal_error ("%s (program %s)",
2687 strsignal (WTERMSIG (status
)), commands
[i
].prog
);
2689 else if (WIFEXITED (status
)
2690 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2692 if (WEXITSTATUS (status
) > greatest_status
)
2693 greatest_status
= WEXITSTATUS (status
);
2697 if (report_times
|| report_times_to_file
)
2699 struct pex_time
*pt
= ×
[i
];
2702 ut
= ((double) pt
->user_seconds
2703 + (double) pt
->user_microseconds
/ 1.0e6
);
2704 st
= ((double) pt
->system_seconds
2705 + (double) pt
->system_microseconds
/ 1.0e6
);
2710 fnotice (stderr
, "# %s %.2f %.2f\n",
2711 commands
[i
].prog
, ut
, st
);
2713 if (report_times_to_file
)
2716 const char *const *j
;
2718 fprintf (report_times_to_file
, "%g %g", ut
, st
);
2720 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
2723 for (p
= *j
; *p
; ++p
)
2724 if (*p
== '"' || *p
== '\\' || *p
== '$'
2730 fprintf (report_times_to_file
, " \"");
2731 for (p
= *j
; *p
; ++p
)
2733 if (*p
== '"' || *p
== '\\' || *p
== '$')
2734 fputc ('\\', report_times_to_file
);
2735 fputc (*p
, report_times_to_file
);
2737 fputc ('"', report_times_to_file
);
2740 fprintf (report_times_to_file
, " %s", *j
);
2743 fputc ('\n', report_times_to_file
);
2753 /* Find all the switches given to us
2754 and make a vector describing them.
2755 The elements of the vector are strings, one per switch given.
2756 If a switch uses following arguments, then the `part1' field
2757 is the switch itself and the `args' field
2758 is a null-terminated vector containing the following arguments.
2759 Bits in the `live_cond' field are:
2760 SWITCH_LIVE to indicate this switch is true in a conditional spec.
2761 SWITCH_FALSE to indicate this switch is overridden by a later switch.
2762 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
2763 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
2764 in all do_spec calls afterwards. Used for %<S from self specs.
2765 The `validated' field is nonzero if any spec has looked at this switch;
2766 if it remains zero at the end of the run, it must be meaningless. */
2768 #define SWITCH_LIVE 0x1
2769 #define SWITCH_FALSE 0x2
2770 #define SWITCH_IGNORE 0x4
2771 #define SWITCH_IGNORE_PERMANENTLY 0x8
2777 unsigned int live_cond
;
2778 unsigned char validated
;
2779 unsigned char ordering
;
2782 static struct switchstr
*switches
;
2784 static int n_switches
;
2786 static int n_switches_alloc
;
2788 /* Set to zero if -fcompare-debug is disabled, positive if it's
2789 enabled and we're running the first compilation, negative if it's
2790 enabled and we're running the second compilation. For most of the
2791 time, it's in the range -1..1, but it can be temporarily set to 2
2792 or 3 to indicate that the -fcompare-debug flags didn't come from
2793 the command-line, but rather from the GCC_COMPARE_DEBUG environment
2794 variable, until a synthesized -fcompare-debug flag is added to the
2798 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
2799 int compare_debug_second
;
2801 /* Set to the flags that should be passed to the second compilation in
2802 a -fcompare-debug compilation. */
2803 const char *compare_debug_opt
;
2805 static struct switchstr
*switches_debug_check
[2];
2807 static int n_switches_debug_check
[2];
2809 static int n_switches_alloc_debug_check
[2];
2811 static char *debug_check_temp_file
[2];
2813 /* Language is one of three things:
2815 1) The name of a real programming language.
2816 2) NULL, indicating that no one has figured out
2818 3) '*', indicating that the file should be passed
2823 const char *language
;
2824 struct compiler
*incompiler
;
2829 /* Also a vector of input files specified. */
2831 static struct infile
*infiles
;
2835 static int n_infiles_alloc
;
2837 /* True if multiple input files are being compiled to a single
2840 static bool combine_inputs
;
2842 /* This counts the number of libraries added by lang_specific_driver, so that
2843 we can tell if there were any user supplied any files or libraries. */
2845 static int added_libraries
;
2847 /* And a vector of corresponding output files is made up later. */
2849 const char **outfiles
;
2851 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2853 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2854 is true if we should look for an executable suffix. DO_OBJ
2855 is true if we should look for an object suffix. */
2858 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
2859 int do_obj ATTRIBUTE_UNUSED
)
2861 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2869 len
= strlen (name
);
2871 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2872 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2873 if (do_obj
&& len
> 2
2874 && name
[len
- 2] == '.'
2875 && name
[len
- 1] == 'o')
2877 obstack_grow (&obstack
, name
, len
- 2);
2878 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2879 name
= XOBFINISH (&obstack
, const char *);
2883 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2884 /* If there is no filetype, make it the executable suffix (which includes
2885 the "."). But don't get confused if we have just "-o". */
2886 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2889 for (i
= len
- 1; i
>= 0; i
--)
2890 if (IS_DIR_SEPARATOR (name
[i
]))
2893 for (i
++; i
< len
; i
++)
2897 obstack_grow (&obstack
, name
, len
);
2898 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2899 strlen (TARGET_EXECUTABLE_SUFFIX
));
2900 name
= XOBFINISH (&obstack
, const char *);
2907 /* Display the command line switches accepted by gcc. */
2911 printf (_("Usage: %s [options] file...\n"), progname
);
2912 fputs (_("Options:\n"), stdout
);
2914 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2915 fputs (_(" --help Display this information\n"), stdout
);
2916 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2917 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
2918 fputs (_(" Display specific types of command line options\n"), stdout
);
2920 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2921 fputs (_(" --version Display compiler version information\n"), stdout
);
2922 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2923 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2924 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2925 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2926 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2927 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2928 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2929 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2931 -print-multi-lib Display the mapping between command line options and\n\
2932 multiple library search directories\n"), stdout
);
2933 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
2934 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
2935 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
2936 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2937 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2938 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2939 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
2940 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
2941 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2942 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2943 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
2945 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
2946 prefixes to other gcc components\n"), stdout
);
2947 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2948 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2949 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
2950 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2952 --sysroot=<directory> Use <directory> as the root directory for headers\n\
2953 and libraries\n"), stdout
);
2954 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2955 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2956 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
2957 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2958 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2959 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2960 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2962 -x <language> Specify the language of the following input files\n\
2963 Permissible languages include: c c++ assembler none\n\
2964 'none' means revert to the default behavior of\n\
2965 guessing the language based on the file's extension\n\
2969 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2970 passed on to the various sub-processes invoked by %s. In order to pass\n\
2971 other options on to these processes the -W<letter> options must be used.\n\
2974 /* The rest of the options are displayed by invocations of the various
2979 add_preprocessor_option (const char *option
, int len
)
2981 n_preprocessor_options
++;
2983 if (! preprocessor_options
)
2984 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
2986 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
2987 n_preprocessor_options
);
2989 preprocessor_options
[n_preprocessor_options
- 1] =
2990 save_string (option
, len
);
2994 add_assembler_option (const char *option
, int len
)
2996 n_assembler_options
++;
2998 if (! assembler_options
)
2999 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3001 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3002 n_assembler_options
);
3004 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3008 add_linker_option (const char *option
, int len
)
3012 if (! linker_options
)
3013 linker_options
= XNEWVEC (char *, n_linker_options
);
3015 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3017 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3020 /* Allocate space for an input file in infiles. */
3025 if (n_infiles_alloc
== 0)
3027 n_infiles_alloc
= 16;
3028 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3030 else if (n_infiles_alloc
== n_infiles
)
3032 n_infiles_alloc
*= 2;
3033 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3037 /* Store an input file with the given NAME and LANGUAGE in
3041 add_infile (const char *name
, const char *language
)
3044 infiles
[n_infiles
].name
= name
;
3045 infiles
[n_infiles
++].language
= language
;
3048 /* Allocate space for a switch in switches. */
3053 if (n_switches_alloc
== 0)
3055 n_switches_alloc
= 16;
3056 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3058 else if (n_switches_alloc
== n_switches
)
3060 n_switches_alloc
*= 2;
3061 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3065 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3066 as validated if VALIDATED. */
3069 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3073 switches
[n_switches
].part1
= opt
+ 1;
3075 switches
[n_switches
].args
= 0;
3078 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3079 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3080 switches
[n_switches
].args
[n_args
] = NULL
;
3083 switches
[n_switches
].live_cond
= 0;
3084 switches
[n_switches
].validated
= validated
;
3085 switches
[n_switches
].ordering
= 0;
3089 /* Handle an option DECODED that is unknown to the option-processing
3090 machinery, but may be known to specs. */
3093 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3095 save_switch (decoded
->canonical_option
[0],
3096 decoded
->canonical_option_num_elements
- 1,
3097 &decoded
->canonical_option
[1], false);
3102 /* Handle an option DECODED that is not marked as CL_DRIVER.
3103 LANG_MASK will always be CL_DRIVER. */
3106 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3107 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3109 /* At this point, non-driver options are accepted (and expected to
3110 be passed down by specs) unless marked to be rejected by the
3111 driver. Options to be rejected by the driver but accepted by the
3112 compilers proper are treated just like completely unknown
3114 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3116 if (option
->flags
& CL_REJECT_DRIVER
)
3117 error ("unrecognized command line option %qs",
3118 decoded
->orig_option_with_args_text
);
3120 driver_unknown_option_callback (decoded
);
3123 /* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
3124 has been successfully handled with a handler for mask MASK. */
3127 driver_post_handling_callback (const struct cl_decoded_option
*decoded ATTRIBUTE_UNUSED
,
3128 unsigned int mask ATTRIBUTE_UNUSED
)
3130 /* Nothing to do here. */
3133 static const char *spec_lang
= 0;
3134 static int last_language_n_infiles
;
3136 /* Handle a driver option; arguments and return value as for
3140 driver_handle_option (struct gcc_options
*opts
,
3141 struct gcc_options
*opts_set
,
3142 const struct cl_decoded_option
*decoded
,
3143 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3145 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3146 diagnostic_context
*dc
)
3148 size_t opt_index
= decoded
->opt_index
;
3149 const char *arg
= decoded
->arg
;
3150 const char *compare_debug_replacement_opt
;
3151 int value
= decoded
->value
;
3152 bool validated
= false;
3153 bool do_save
= true;
3155 gcc_assert (opts
== &global_options
);
3156 gcc_assert (opts_set
== &global_options_set
);
3157 gcc_assert (kind
== DK_UNSPECIFIED
);
3158 gcc_assert (loc
== UNKNOWN_LOCATION
);
3159 gcc_assert (dc
== global_dc
);
3165 struct spec_list
*sl
;
3167 for (sl
= specs
; sl
; sl
= sl
->next
)
3168 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3169 if (link_command_spec
)
3170 printf ("*link_command:\n%s\n\n", link_command_spec
);
3174 case OPT_dumpversion
:
3175 printf ("%s\n", spec_version
);
3178 case OPT_dumpmachine
:
3179 printf ("%s\n", spec_machine
);
3185 /* CPP driver cannot obtain switch from cc1_options. */
3187 add_preprocessor_option ("--version", strlen ("--version"));
3188 add_assembler_option ("--version", strlen ("--version"));
3189 add_linker_option ("--version", strlen ("--version"));
3193 print_help_list
= 1;
3195 /* CPP driver cannot obtain switch from cc1_options. */
3197 add_preprocessor_option ("--help", 6);
3198 add_assembler_option ("--help", 6);
3199 add_linker_option ("--help", 6);
3203 print_subprocess_help
= 2;
3206 case OPT__target_help
:
3207 print_subprocess_help
= 1;
3209 /* CPP driver cannot obtain switch from cc1_options. */
3211 add_preprocessor_option ("--target-help", 13);
3212 add_assembler_option ("--target-help", 13);
3213 add_linker_option ("--target-help", 13);
3216 case OPT_pass_exit_codes
:
3217 case OPT_print_search_dirs
:
3218 case OPT_print_file_name_
:
3219 case OPT_print_prog_name_
:
3220 case OPT_print_multi_lib
:
3221 case OPT_print_multi_directory
:
3222 case OPT_print_sysroot
:
3223 case OPT_print_multi_os_directory
:
3224 case OPT_print_sysroot_headers_suffix
:
3227 /* These options set the variables specified in common.opt
3228 automatically, and do not need to be saved for spec
3233 case OPT_print_libgcc_file_name
:
3234 print_file_name
= "libgcc.a";
3238 case OPT_fcompare_debug_second
:
3239 compare_debug_second
= 1;
3242 case OPT_fcompare_debug
:
3246 compare_debug_replacement_opt
= "-fcompare-debug=";
3248 goto compare_debug_with_arg
;
3251 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3253 goto compare_debug_with_arg
;
3260 case OPT_fcompare_debug_
:
3261 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3262 compare_debug_with_arg
:
3263 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3264 gcc_assert (arg
!= NULL
);
3269 if (compare_debug
< 0)
3270 compare_debug_opt
= NULL
;
3272 compare_debug_opt
= arg
;
3273 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
);
3279 /* Pass the rest of this option to the assembler. */
3281 /* Split the argument at commas. */
3283 for (j
= 0; arg
[j
]; j
++)
3286 add_assembler_option (arg
+ prev
, j
- prev
);
3290 /* Record the part after the last comma. */
3291 add_assembler_option (arg
+ prev
, j
- prev
);
3299 /* Pass the rest of this option to the preprocessor. */
3301 /* Split the argument at commas. */
3303 for (j
= 0; arg
[j
]; j
++)
3306 add_preprocessor_option (arg
+ prev
, j
- prev
);
3310 /* Record the part after the last comma. */
3311 add_preprocessor_option (arg
+ prev
, j
- prev
);
3319 /* Split the argument at commas. */
3321 for (j
= 0; arg
[j
]; j
++)
3324 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3327 /* Record the part after the last comma. */
3328 add_infile (arg
+ prev
, "*");
3334 add_infile (arg
, "*");
3338 case OPT_Xpreprocessor
:
3339 add_preprocessor_option (arg
, strlen (arg
));
3343 case OPT_Xassembler
:
3344 add_assembler_option (arg
, strlen (arg
));
3349 /* POSIX allows separation of -l and the lib arg; canonicalize
3350 by concatenating -l with its arg */
3351 add_infile (concat ("-l", arg
, NULL
), "*");
3356 /* Similarly, canonicalize -L for linkers that may not accept
3357 separate arguments. */
3358 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
);
3361 case OPT_save_temps
:
3362 save_temps_flag
= SAVE_TEMPS_CWD
;
3366 case OPT_save_temps_
:
3367 if (strcmp (arg
, "cwd") == 0)
3368 save_temps_flag
= SAVE_TEMPS_CWD
;
3369 else if (strcmp (arg
, "obj") == 0
3370 || strcmp (arg
, "object") == 0)
3371 save_temps_flag
= SAVE_TEMPS_OBJ
;
3373 fatal_error ("%qs is an unknown -save-temps option",
3374 decoded
->orig_option_with_args_text
);
3377 case OPT_no_canonical_prefixes
:
3378 /* Already handled as a special case, so ignored here. */
3384 /* These options set the variables specified in common.opt
3385 automatically, but do need to be saved for spec
3391 struct user_specs
*user
= XNEW (struct user_specs
);
3393 user
->next
= (struct user_specs
*) 0;
3394 user
->filename
= arg
;
3395 if (user_specs_tail
)
3396 user_specs_tail
->next
= user
;
3398 user_specs_head
= user
;
3399 user_specs_tail
= user
;
3405 target_system_root
= arg
;
3406 target_system_root_changed
= 1;
3411 if (report_times_to_file
)
3412 fclose (report_times_to_file
);
3413 report_times_to_file
= fopen (arg
, "a");
3419 This is similar to -v except that there is no execution
3420 of the commands and the echoed arguments are quoted. It
3421 is intended for use in shell scripts to capture the
3422 driver-generated command line. */
3423 verbose_only_flag
++;
3430 size_t len
= strlen (arg
);
3432 /* Catch the case where the user has forgotten to append a
3433 directory separator to the path. Note, they may be using
3434 -B to add an executable name prefix, eg "i386-elf-", in
3435 order to distinguish between multiple installations of
3436 GCC in the same directory. Hence we must check to see
3437 if appending a directory separator actually makes a
3438 valid directory name. */
3439 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
3440 && is_directory (arg
, false))
3442 char *tmp
= XNEWVEC (char, len
+ 2);
3444 tmp
[len
] = DIR_SEPARATOR
;
3449 add_prefix (&exec_prefixes
, arg
, NULL
,
3450 PREFIX_PRIORITY_B_OPT
, 0, 0);
3451 add_prefix (&startfile_prefixes
, arg
, NULL
,
3452 PREFIX_PRIORITY_B_OPT
, 0, 0);
3453 add_prefix (&include_prefixes
, arg
, NULL
,
3454 PREFIX_PRIORITY_B_OPT
, 0, 0);
3461 if (!strcmp (spec_lang
, "none"))
3462 /* Suppress the warning if -xnone comes after the last input
3463 file, because alternate command interfaces like g++ might
3464 find it useful to place -xnone after each input file. */
3467 last_language_n_infiles
= n_infiles
;
3473 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3474 arg
= convert_filename (arg
, ! have_c
, 0);
3476 /* Save the output name in case -save-temps=obj was used. */
3477 save_temps_prefix
= xstrdup (arg
);
3478 /* On some systems, ld cannot handle "-o" without a space. So
3479 split the option from its argument. */
3480 save_switch ("-o", 1, &arg
, validated
);
3483 case OPT_static_libgcc
:
3484 case OPT_shared_libgcc
:
3485 case OPT_static_libgfortran
:
3486 case OPT_static_libstdc__
:
3487 /* These are always valid, since gcc.c itself understands the
3488 first two, gfortranspec.c understands -static-libgfortran and
3489 g++spec.c understands -static-libstdc++ */
3494 /* Various driver options need no special processing at this
3495 point, having been handled in a prescan above or being
3496 handled by specs. */
3501 save_switch (decoded
->canonical_option
[0],
3502 decoded
->canonical_option_num_elements
- 1,
3503 &decoded
->canonical_option
[1], validated
);
3507 /* Put the driver's standard set of option handlers in *HANDLERS. */
3510 set_option_handlers (struct cl_option_handlers
*handlers
)
3512 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
3513 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
3514 handlers
->post_handling_callback
= driver_post_handling_callback
;
3515 handlers
->num_handlers
= 1;
3516 handlers
->handlers
[0].handler
= driver_handle_option
;
3517 handlers
->handlers
[0].mask
= CL_DRIVER
;
3520 /* Create the vector `switches' and its contents.
3521 Store its length in `n_switches'. */
3524 process_command (unsigned int decoded_options_count
,
3525 struct cl_decoded_option
*decoded_options
)
3529 const char *tooldir_prefix
;
3530 char *(*get_relative_prefix
) (const char *, const char *,
3531 const char *) = NULL
;
3532 struct cl_option_handlers handlers
;
3535 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3539 added_libraries
= 0;
3541 /* Figure compiler version from version string. */
3543 compiler_version
= temp1
= xstrdup (version_string
);
3545 for (; *temp1
; ++temp1
)
3554 /* Handle any -no-canonical-prefixes flag early, to assign the function
3555 that builds relative prefixes. This function creates default search
3556 paths that are needed later in normal option handling. */
3558 for (j
= 1; j
< decoded_options_count
; j
++)
3560 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
3562 get_relative_prefix
= make_relative_prefix_ignore_links
;
3566 if (! get_relative_prefix
)
3567 get_relative_prefix
= make_relative_prefix
;
3569 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3570 see if we can create it from the pathname specified in
3571 decoded_options[0].arg. */
3573 gcc_libexec_prefix
= standard_libexec_prefix
;
3575 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3576 if (!gcc_exec_prefix
)
3578 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3579 standard_bindir_prefix
,
3580 standard_exec_prefix
);
3581 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3582 standard_bindir_prefix
,
3583 standard_libexec_prefix
);
3584 if (gcc_exec_prefix
)
3585 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3589 /* make_relative_prefix requires a program name, but
3590 GCC_EXEC_PREFIX is typically a directory name with a trailing
3591 / (which is ignored by make_relative_prefix), so append a
3593 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3594 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3595 standard_exec_prefix
,
3596 standard_libexec_prefix
);
3598 /* The path is unrelocated, so fallback to the original setting. */
3599 if (!gcc_libexec_prefix
)
3600 gcc_libexec_prefix
= standard_libexec_prefix
;
3606 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3607 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3608 or an automatically created GCC_EXEC_PREFIX from
3609 decoded_options[0].arg. */
3611 /* Do language-specific adjustment/addition of flags. */
3612 lang_specific_driver (&decoded_options
, &decoded_options_count
,
3615 if (gcc_exec_prefix
)
3617 int len
= strlen (gcc_exec_prefix
);
3619 if (len
> (int) sizeof ("/lib/gcc/") - 1
3620 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3622 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3623 if (IS_DIR_SEPARATOR (*temp
)
3624 && strncmp (temp
+ 1, "lib", 3) == 0
3625 && IS_DIR_SEPARATOR (temp
[4])
3626 && strncmp (temp
+ 5, "gcc", 3) == 0)
3627 len
-= sizeof ("/lib/gcc/") - 1;
3630 set_std_prefix (gcc_exec_prefix
, len
);
3631 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3632 PREFIX_PRIORITY_LAST
, 0, 0);
3633 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3634 PREFIX_PRIORITY_LAST
, 0, 0);
3637 /* COMPILER_PATH and LIBRARY_PATH have values
3638 that are lists of directory names with colons. */
3640 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3643 const char *startp
, *endp
;
3644 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3646 startp
= endp
= temp
;
3649 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3651 strncpy (nstore
, startp
, endp
- startp
);
3653 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3654 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3656 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3657 nstore
[endp
- startp
+ 1] = 0;
3660 nstore
[endp
- startp
] = 0;
3661 add_prefix (&exec_prefixes
, nstore
, 0,
3662 PREFIX_PRIORITY_LAST
, 0, 0);
3663 add_prefix (&include_prefixes
, nstore
, 0,
3664 PREFIX_PRIORITY_LAST
, 0, 0);
3667 endp
= startp
= endp
+ 1;
3674 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3675 if (temp
&& *cross_compile
== '0')
3677 const char *startp
, *endp
;
3678 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3680 startp
= endp
= temp
;
3683 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3685 strncpy (nstore
, startp
, endp
- startp
);
3687 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3688 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3690 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3691 nstore
[endp
- startp
+ 1] = 0;
3694 nstore
[endp
- startp
] = 0;
3695 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3696 PREFIX_PRIORITY_LAST
, 0, 1);
3699 endp
= startp
= endp
+ 1;
3706 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3707 GET_ENVIRONMENT (temp
, "LPATH");
3708 if (temp
&& *cross_compile
== '0')
3710 const char *startp
, *endp
;
3711 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3713 startp
= endp
= temp
;
3716 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3718 strncpy (nstore
, startp
, endp
- startp
);
3720 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3721 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3723 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3724 nstore
[endp
- startp
+ 1] = 0;
3727 nstore
[endp
- startp
] = 0;
3728 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3729 PREFIX_PRIORITY_LAST
, 0, 1);
3732 endp
= startp
= endp
+ 1;
3739 /* Process the options and store input files and switches in their
3742 last_language_n_infiles
= -1;
3744 set_option_handlers (&handlers
);
3746 for (j
= 1; j
< decoded_options_count
; j
++)
3748 switch (decoded_options
[j
].opt_index
)
3760 for (j
= 1; j
< decoded_options_count
; j
++)
3762 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
3764 const char *arg
= decoded_options
[j
].arg
;
3765 const char *p
= strrchr (arg
, '@');
3769 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3770 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
3772 /* For LTO static archive support we handle input file
3773 specifications that are composed of a filename and
3774 an offset like FNAME@OFFSET. */
3777 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
3778 && strlen (p
) == (unsigned int)consumed
)
3780 fname
= (char *)xmalloc (p
- arg
+ 1);
3781 memcpy (fname
, arg
, p
- arg
);
3782 fname
[p
- arg
] = '\0';
3783 /* Only accept non-stdin and existing FNAME parts, otherwise
3784 try with the full name. */
3785 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
3788 fname
= xstrdup (arg
);
3792 fname
= xstrdup (arg
);
3794 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
3795 perror_with_name (fname
);
3797 add_infile (arg
, spec_lang
);
3803 read_cmdline_option (&global_options
, &global_options_set
,
3804 decoded_options
+ j
, UNKNOWN_LOCATION
,
3805 CL_DRIVER
, &handlers
, global_dc
);
3808 /* If -save-temps=obj and -o name, create the prefix to use for %b.
3809 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
3810 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
3812 save_temps_length
= strlen (save_temps_prefix
);
3813 temp
= strrchr (lbasename (save_temps_prefix
), '.');
3816 save_temps_length
-= strlen (temp
);
3817 save_temps_prefix
[save_temps_length
] = '\0';
3821 else if (save_temps_prefix
!= NULL
)
3823 free (save_temps_prefix
);
3824 save_temps_prefix
= NULL
;
3827 if (save_temps_flag
&& use_pipes
)
3829 /* -save-temps overrides -pipe, so that temp files are produced */
3830 if (save_temps_flag
)
3831 warning (0, "-pipe ignored because -save-temps specified");
3837 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
3839 if (gcd
&& gcd
[0] == '-')
3842 compare_debug_opt
= gcd
;
3844 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
3847 compare_debug_opt
= "-gtoggle";
3850 else if (compare_debug
< 0)
3853 gcc_assert (!compare_debug_opt
);
3856 /* Set up the search paths. We add directories that we expect to
3857 contain GNU Toolchain components before directories specified by
3858 the machine description so that we will find GNU components (like
3859 the GNU assembler) before those of the host system. */
3861 /* If we don't know where the toolchain has been installed, use the
3862 configured-in locations. */
3863 if (!gcc_exec_prefix
)
3866 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
3867 PREFIX_PRIORITY_LAST
, 1, 0);
3868 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
3869 PREFIX_PRIORITY_LAST
, 2, 0);
3870 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3871 PREFIX_PRIORITY_LAST
, 2, 0);
3873 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3874 PREFIX_PRIORITY_LAST
, 1, 0);
3877 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
3878 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3879 dir_separator_str
, NULL
);
3881 /* Look for tools relative to the location from which the driver is
3882 running, or, if that is not available, the configured prefix. */
3884 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
3885 spec_machine
, dir_separator_str
,
3886 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3888 add_prefix (&exec_prefixes
,
3889 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3890 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
3891 add_prefix (&startfile_prefixes
,
3892 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3893 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
3895 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
3896 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
3897 then consider it to relocate with the rest of the GCC installation
3898 if GCC_EXEC_PREFIX is set.
3899 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
3900 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
3902 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
3903 standard_bindir_prefix
,
3904 target_system_root
);
3905 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
3907 target_system_root
= tmp_prefix
;
3908 target_system_root_changed
= 1;
3913 /* More prefixes are enabled in main, after we read the specs file
3914 and determine whether this is cross-compilation or not. */
3916 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3917 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
3919 if (compare_debug
== 2 || compare_debug
== 3)
3922 switches
[n_switches
].part1
= concat ("fcompare-debug=",
3925 switches
[n_switches
].args
= 0;
3926 switches
[n_switches
].live_cond
= 0;
3927 switches
[n_switches
].validated
= 0;
3928 switches
[n_switches
].ordering
= 0;
3933 /* Ensure we only invoke each subprocess once. */
3934 if (print_subprocess_help
|| print_help_list
|| print_version
)
3938 /* Create a dummy input file, so that we can pass
3939 the help option on to the various sub-processes. */
3940 add_infile ("help-dummy", "c");
3944 switches
[n_switches
].part1
= 0;
3946 infiles
[n_infiles
].name
= 0;
3949 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
3950 and place that in the environment. */
3953 set_collect_gcc_options (void)
3958 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3960 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
3961 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
3964 for (i
= 0; (int) i
< n_switches
; i
++)
3966 const char *const *args
;
3969 obstack_grow (&collect_obstack
, " ", 1);
3973 /* Ignore elided switches. */
3974 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
3977 obstack_grow (&collect_obstack
, "'-", 2);
3978 q
= switches
[i
].part1
;
3979 while ((p
= strchr (q
, '\'')))
3981 obstack_grow (&collect_obstack
, q
, p
- q
);
3982 obstack_grow (&collect_obstack
, "'\\''", 4);
3985 obstack_grow (&collect_obstack
, q
, strlen (q
));
3986 obstack_grow (&collect_obstack
, "'", 1);
3988 for (args
= switches
[i
].args
; args
&& *args
; args
++)
3990 obstack_grow (&collect_obstack
, " '", 2);
3992 while ((p
= strchr (q
, '\'')))
3994 obstack_grow (&collect_obstack
, q
, p
- q
);
3995 obstack_grow (&collect_obstack
, "'\\''", 4);
3998 obstack_grow (&collect_obstack
, q
, strlen (q
));
3999 obstack_grow (&collect_obstack
, "'", 1);
4002 obstack_grow (&collect_obstack
, "\0", 1);
4003 xputenv (XOBFINISH (&collect_obstack
, char *));
4006 /* Process a spec string, accumulating and running commands. */
4008 /* These variables describe the input file name.
4009 input_file_number is the index on outfiles of this file,
4010 so that the output file name can be stored for later use by %o.
4011 input_basename is the start of the part of the input file
4012 sans all directory names, and basename_length is the number
4013 of characters starting there excluding the suffix .c or whatever. */
4015 static const char *gcc_input_filename
;
4016 static int input_file_number
;
4017 size_t input_filename_length
;
4018 static int basename_length
;
4019 static int suffixed_basename_length
;
4020 static const char *input_basename
;
4021 static const char *input_suffix
;
4022 #ifndef HOST_LACKS_INODE_NUMBERS
4023 static struct stat input_stat
;
4025 static int input_stat_set
;
4027 /* The compiler used to process the current input file. */
4028 static struct compiler
*input_file_compiler
;
4030 /* These are variables used within do_spec and do_spec_1. */
4032 /* Nonzero if an arg has been started and not yet terminated
4033 (with space, tab or newline). */
4034 static int arg_going
;
4036 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4037 is a temporary file name. */
4038 static int delete_this_arg
;
4040 /* Nonzero means %w has been seen; the next arg to be terminated
4041 is the output file name of this compilation. */
4042 static int this_is_output_file
;
4044 /* Nonzero means %s has been seen; the next arg to be terminated
4045 is the name of a library file and we should try the standard
4046 search dirs for it. */
4047 static int this_is_library_file
;
4049 /* Nonzero means %T has been seen; the next arg to be terminated
4050 is the name of a linker script and we should try all of the
4051 standard search dirs for it. If it is found insert a --script
4052 command line switch and then substitute the full path in place,
4053 otherwise generate an error message. */
4054 static int this_is_linker_script
;
4056 /* Nonzero means that the input of this command is coming from a pipe. */
4057 static int input_from_pipe
;
4059 /* Nonnull means substitute this for any suffix when outputting a switches
4061 static const char *suffix_subst
;
4063 /* If there is an argument being accumulated, terminate it and store it. */
4066 end_going_arg (void)
4072 obstack_1grow (&obstack
, 0);
4073 string
= XOBFINISH (&obstack
, const char *);
4074 if (this_is_library_file
)
4075 string
= find_file (string
);
4076 if (this_is_linker_script
)
4078 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4080 if (full_script_path
== NULL
)
4082 error ("unable to locate default linker script %qs in the library search paths", string
);
4083 /* Script was not found on search path. */
4086 store_arg ("--script", false, false);
4087 string
= full_script_path
;
4089 store_arg (string
, delete_this_arg
, this_is_output_file
);
4090 if (this_is_output_file
)
4091 outfiles
[input_file_number
] = string
;
4097 /* Parse the WRAPPER string which is a comma separated list of the command line
4098 and insert them into the beginning of argbuf. */
4101 insert_wrapper (const char *wrapper
)
4105 char *buf
= xstrdup (wrapper
);
4114 while ((p
= strchr (p
, ',')) != NULL
);
4116 if (argbuf_index
+ n
>= argbuf_length
)
4118 argbuf_length
= argbuf_length
* 2;
4119 while (argbuf_length
< argbuf_index
+ n
)
4121 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4123 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4124 argbuf
[i
+ n
] = argbuf
[i
];
4137 while ((p
= strchr (p
, ',')) != NULL
);
4138 gcc_assert (i
== n
);
4142 /* Process the spec SPEC and run the commands specified therein.
4143 Returns 0 if the spec is successfully processed; -1 if failed. */
4146 do_spec (const char *spec
)
4150 value
= do_spec_2 (spec
);
4152 /* Force out any unfinished command.
4153 If -pipe, this forces out the last command if it ended in `|'. */
4156 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4159 set_collect_gcc_options ();
4161 if (argbuf_index
> 0)
4169 do_spec_2 (const char *spec
)
4175 delete_this_arg
= 0;
4176 this_is_output_file
= 0;
4177 this_is_library_file
= 0;
4178 this_is_linker_script
= 0;
4179 input_from_pipe
= 0;
4180 suffix_subst
= NULL
;
4182 result
= do_spec_1 (spec
, 0, NULL
);
4190 /* Process the given spec string and add any new options to the end
4191 of the switches/n_switches array. */
4194 do_option_spec (const char *name
, const char *spec
)
4196 unsigned int i
, value_count
, value_len
;
4197 const char *p
, *q
, *value
;
4198 char *tmp_spec
, *tmp_spec_p
;
4200 if (configure_default_options
[0].name
== NULL
)
4203 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4204 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4206 if (i
== ARRAY_SIZE (configure_default_options
))
4209 value
= configure_default_options
[i
].value
;
4210 value_len
= strlen (value
);
4212 /* Compute the size of the final spec. */
4215 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4221 /* Replace each %(VALUE) by the specified value. */
4222 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4223 + value_count
* (value_len
- strlen ("%(VALUE)")));
4224 tmp_spec_p
= tmp_spec
;
4226 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4228 memcpy (tmp_spec_p
, q
, p
- q
);
4229 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4230 memcpy (tmp_spec_p
, value
, value_len
);
4231 tmp_spec_p
+= value_len
;
4232 q
= p
+ strlen ("%(VALUE)");
4234 strcpy (tmp_spec_p
, q
);
4236 do_self_spec (tmp_spec
);
4239 /* Process the given spec string and add any new options to the end
4240 of the switches/n_switches array. */
4243 do_self_spec (const char *spec
)
4248 do_spec_1 (" ", 0, NULL
);
4250 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4251 do_self_specs adds the replacements to switches array, so it shouldn't
4252 be processed afterwards. */
4253 for (i
= 0; i
< n_switches
; i
++)
4254 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4255 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4257 if (argbuf_index
> 0)
4259 const char **argbuf_copy
;
4260 struct cl_decoded_option
*decoded_options
;
4261 struct cl_option_handlers handlers
;
4262 unsigned int decoded_options_count
;
4265 /* Create a copy of argbuf with a dummy argv[0] entry for
4266 decode_cmdline_options_to_array. */
4267 argbuf_copy
= XNEWVEC (const char *, argbuf_index
+ 1);
4268 argbuf_copy
[0] = "";
4269 memcpy (argbuf_copy
+ 1, argbuf
, argbuf_index
* sizeof (const char *));
4271 decode_cmdline_options_to_array (argbuf_index
+ 1, argbuf_copy
,
4272 CL_DRIVER
, &decoded_options
,
4273 &decoded_options_count
);
4275 set_option_handlers (&handlers
);
4277 for (j
= 1; j
< decoded_options_count
; j
++)
4279 switch (decoded_options
[j
].opt_index
)
4281 case OPT_SPECIAL_input_file
:
4282 /* Specs should only generate options, not input
4284 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4285 fatal_error ("switch %qs does not start with %<-%>",
4286 decoded_options
[j
].arg
);
4288 fatal_error ("spec-generated switch is just %<-%>");
4291 case OPT_fcompare_debug_second
:
4292 case OPT_fcompare_debug
:
4293 case OPT_fcompare_debug_
:
4295 /* Avoid duplicate processing of some options from
4296 compare-debug specs; just save them here. */
4297 save_switch (decoded_options
[j
].canonical_option
[0],
4298 (decoded_options
[j
].canonical_option_num_elements
4300 &decoded_options
[j
].canonical_option
[1], false);
4304 read_cmdline_option (&global_options
, &global_options_set
,
4305 decoded_options
+ j
, UNKNOWN_LOCATION
,
4306 CL_DRIVER
, &handlers
, global_dc
);
4312 switches
[n_switches
].part1
= 0;
4316 /* Callback for processing %D and %I specs. */
4318 struct spec_path_info
{
4323 bool separate_options
;
4327 spec_path (char *path
, void *data
)
4329 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4333 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4336 if (info
->append_len
!= 0)
4338 len
= strlen (path
);
4339 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4342 if (!is_directory (path
, true))
4345 do_spec_1 (info
->option
, 1, NULL
);
4346 if (info
->separate_options
)
4347 do_spec_1 (" ", 0, NULL
);
4349 if (info
->append_len
== 0)
4351 len
= strlen (path
);
4352 save
= path
[len
- 1];
4353 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4354 path
[len
- 1] = '\0';
4357 do_spec_1 (path
, 1, NULL
);
4358 do_spec_1 (" ", 0, NULL
);
4360 /* Must not damage the original path. */
4361 if (info
->append_len
== 0)
4362 path
[len
- 1] = save
;
4367 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4371 create_at_file (char **argv
)
4373 char *temp_file
= make_temp_file ("");
4374 char *at_argument
= concat ("@", temp_file
, NULL
);
4375 FILE *f
= fopen (temp_file
, "w");
4379 fatal_error ("could not open temporary response file %s",
4382 status
= writeargv (argv
, f
);
4385 fatal_error ("could not write to temporary response file %s",
4388 status
= fclose (f
);
4391 fatal_error ("could not close temporary response file %s",
4394 store_arg (at_argument
, 0, 0);
4396 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
4399 /* True if we should compile INFILE. */
4402 compile_input_file_p (struct infile
*infile
)
4404 if ((!infile
->language
) || (infile
->language
[0] != '*'))
4405 if (infile
->incompiler
== input_file_compiler
)
4410 /* Process the sub-spec SPEC as a portion of a larger spec.
4411 This is like processing a whole spec except that we do
4412 not initialize at the beginning and we do not supply a
4413 newline by default at the end.
4414 INSWITCH nonzero means don't process %-sequences in SPEC;
4415 in this case, % is treated as an ordinary character.
4416 This is used while substituting switches.
4417 INSWITCH nonzero also causes SPC not to terminate an argument.
4419 Value is zero unless a line was finished
4420 and the command on that line reported an error. */
4423 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
4425 const char *p
= spec
;
4431 /* If substituting a switch, treat all chars like letters.
4432 Otherwise, NL, SPC, TAB and % are special. */
4433 switch (inswitch
? 'a' : c
)
4438 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4440 /* A `|' before the newline means use a pipe here,
4441 but only if -pipe was specified.
4442 Otherwise, execute now and don't pass the `|' as an arg. */
4445 input_from_pipe
= 1;
4452 set_collect_gcc_options ();
4454 if (argbuf_index
> 0)
4460 /* Reinitialize for a new command, and for a new argument. */
4463 delete_this_arg
= 0;
4464 this_is_output_file
= 0;
4465 this_is_library_file
= 0;
4466 this_is_linker_script
= 0;
4467 input_from_pipe
= 0;
4474 obstack_1grow (&obstack
, c
);
4482 /* Reinitialize for a new argument. */
4483 delete_this_arg
= 0;
4484 this_is_output_file
= 0;
4485 this_is_library_file
= 0;
4486 this_is_linker_script
= 0;
4493 fatal_error ("spec %qs invalid", spec
);
4496 if (save_temps_length
)
4497 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4499 obstack_grow (&obstack
, input_basename
, basename_length
);
4500 if (compare_debug
< 0)
4501 obstack_grow (&obstack
, ".gk", 3);
4506 if (save_temps_length
)
4507 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
4509 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4510 if (compare_debug
< 0)
4511 obstack_grow (&obstack
, ".gk", 3);
4516 delete_this_arg
= 2;
4519 /* Dump out the directories specified with LIBRARY_PATH,
4520 followed by the absolute directories
4521 that we search for startfiles. */
4524 struct spec_path_info info
;
4527 info
.append_len
= 0;
4528 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4529 /* Used on systems which record the specified -L dirs
4530 and use them to search for dynamic linking.
4531 Relative directories always come from -B,
4532 and it is better not to use them for searching
4533 at run time. In particular, stage1 loses. */
4534 info
.omit_relative
= true;
4536 info
.omit_relative
= false;
4538 info
.separate_options
= false;
4540 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
4545 /* %efoo means report an error with `foo' as error message
4546 and don't execute any more commands for this file. */
4550 while (*p
!= 0 && *p
!= '\n')
4552 buf
= (char *) alloca (p
- q
+ 1);
4553 strncpy (buf
, q
, p
- q
);
4555 error ("%s", _(buf
));
4560 /* %nfoo means report a notice with `foo' on stderr. */
4564 while (*p
!= 0 && *p
!= '\n')
4566 buf
= (char *) alloca (p
- q
+ 1);
4567 strncpy (buf
, q
, p
- q
);
4569 inform (0, "%s", _(buf
));
4579 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
4580 defined, and it is not a directory, and it is
4581 writable, use it. Otherwise, treat this like any
4582 other temporary file. */
4584 if ((!save_temps_flag
)
4585 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4586 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4588 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4589 strlen (HOST_BIT_BUCKET
));
4590 delete_this_arg
= 0;
4595 goto create_temp_file
;
4599 obstack_1grow (&obstack
, '-');
4600 delete_this_arg
= 0;
4603 /* consume suffix */
4604 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4606 if (p
[0] == '%' && p
[1] == 'O')
4611 goto create_temp_file
;
4615 /* consume suffix */
4616 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4618 if (p
[0] == '%' && p
[1] == 'O')
4623 goto create_temp_file
;
4629 struct temp_name
*t
;
4631 const char *suffix
= p
;
4632 char *saved_suffix
= NULL
;
4634 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
4636 suffix_length
= p
- suffix
;
4637 if (p
[0] == '%' && p
[1] == 'O')
4640 /* We don't support extra suffix characters after %O. */
4641 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
4642 fatal_error ("spec %qs has invalid %<%%0%c%>", spec
, *p
);
4643 if (suffix_length
== 0)
4644 suffix
= TARGET_OBJECT_SUFFIX
;
4648 = XNEWVEC (char, suffix_length
4649 + strlen (TARGET_OBJECT_SUFFIX
));
4650 strncpy (saved_suffix
, suffix
, suffix_length
);
4651 strcpy (saved_suffix
+ suffix_length
,
4652 TARGET_OBJECT_SUFFIX
);
4654 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4657 if (compare_debug
< 0)
4659 suffix
= concat (".gk", suffix
, NULL
);
4663 /* If -save-temps=obj and -o were specified, use that for the
4665 if (save_temps_length
)
4668 temp_filename_length
4669 = save_temps_length
+ suffix_length
+ 1;
4670 tmp
= (char *) alloca (temp_filename_length
);
4671 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
4672 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
4673 tmp
[save_temps_length
+ suffix_length
] = '\0';
4674 temp_filename
= save_string (tmp
,
4675 temp_filename_length
+ 1);
4676 obstack_grow (&obstack
, temp_filename
,
4677 temp_filename_length
);
4679 delete_this_arg
= 0;
4683 /* If the gcc_input_filename has the same suffix specified
4684 for the %g, %u, or %U, and -save-temps is specified,
4685 we could end up using that file as an intermediate
4686 thus clobbering the user's source file (.e.g.,
4687 gcc -save-temps foo.s would clobber foo.s with the
4688 output of cpp0). So check for this condition and
4689 generate a temp file as the intermediate. */
4691 if (save_temps_flag
)
4694 temp_filename_length
= basename_length
+ suffix_length
+ 1;
4695 tmp
= (char *) alloca (temp_filename_length
);
4696 memcpy (tmp
, input_basename
, basename_length
);
4697 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
4698 tmp
[basename_length
+ suffix_length
] = '\0';
4699 temp_filename
= tmp
;
4701 if (strcmp (temp_filename
, gcc_input_filename
) != 0)
4703 #ifndef HOST_LACKS_INODE_NUMBERS
4704 struct stat st_temp
;
4706 /* Note, set_input() resets input_stat_set to 0. */
4707 if (input_stat_set
== 0)
4709 input_stat_set
= stat (gcc_input_filename
,
4711 if (input_stat_set
>= 0)
4715 /* If we have the stat for the gcc_input_filename
4716 and we can do the stat for the temp_filename
4717 then the they could still refer to the same
4718 file if st_dev/st_ino's are the same. */
4719 if (input_stat_set
!= 1
4720 || stat (temp_filename
, &st_temp
) < 0
4721 || input_stat
.st_dev
!= st_temp
.st_dev
4722 || input_stat
.st_ino
!= st_temp
.st_ino
)
4724 /* Just compare canonical pathnames. */
4725 char* input_realname
= lrealpath (gcc_input_filename
);
4726 char* temp_realname
= lrealpath (temp_filename
);
4727 bool files_differ
= strcmp (input_realname
, temp_realname
);
4728 free (input_realname
);
4729 free (temp_realname
);
4733 temp_filename
= save_string (temp_filename
,
4734 temp_filename_length
+ 1);
4735 obstack_grow (&obstack
, temp_filename
,
4736 temp_filename_length
);
4738 delete_this_arg
= 0;
4744 /* See if we already have an association of %g/%u/%U and
4746 for (t
= temp_names
; t
; t
= t
->next
)
4747 if (t
->length
== suffix_length
4748 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4749 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
4752 /* Make a new association if needed. %u and %j
4754 if (t
== 0 || c
== 'u' || c
== 'j')
4758 t
= XNEW (struct temp_name
);
4759 t
->next
= temp_names
;
4762 t
->length
= suffix_length
;
4765 t
->suffix
= saved_suffix
;
4766 saved_suffix
= NULL
;
4769 t
->suffix
= save_string (suffix
, suffix_length
);
4770 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
4771 temp_filename
= make_temp_file (t
->suffix
);
4772 temp_filename_length
= strlen (temp_filename
);
4773 t
->filename
= temp_filename
;
4774 t
->filename_length
= temp_filename_length
;
4778 free (saved_suffix
);
4780 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4781 delete_this_arg
= 1;
4789 if (at_file_supplied
)
4791 /* We are going to expand `%i' to `@FILE', where FILE
4792 is a newly-created temporary filename. The filenames
4793 that would usually be expanded in place of %o will be
4794 written to the temporary file. */
4799 for (i
= 0; i
< n_infiles
; i
++)
4800 if (compile_input_file_p (&infiles
[i
]))
4803 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4805 /* Copy the strings over. */
4806 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
4807 if (compile_input_file_p (&infiles
[i
]))
4809 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
4810 infiles
[i
].compiled
= true;
4815 create_at_file (argv
);
4818 for (i
= 0; (int) i
< n_infiles
; i
++)
4819 if (compile_input_file_p (&infiles
[i
]))
4821 store_arg (infiles
[i
].name
, 0, 0);
4822 infiles
[i
].compiled
= true;
4827 obstack_grow (&obstack
, gcc_input_filename
,
4828 input_filename_length
);
4835 struct spec_path_info info
;
4839 do_spec_1 ("-imultilib", 1, NULL
);
4840 /* Make this a separate argument. */
4841 do_spec_1 (" ", 0, NULL
);
4842 do_spec_1 (multilib_dir
, 1, NULL
);
4843 do_spec_1 (" ", 0, NULL
);
4846 if (gcc_exec_prefix
)
4848 do_spec_1 ("-iprefix", 1, NULL
);
4849 /* Make this a separate argument. */
4850 do_spec_1 (" ", 0, NULL
);
4851 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4852 do_spec_1 (" ", 0, NULL
);
4855 if (target_system_root_changed
||
4856 (target_system_root
&& target_sysroot_hdrs_suffix
))
4858 do_spec_1 ("-isysroot", 1, NULL
);
4859 /* Make this a separate argument. */
4860 do_spec_1 (" ", 0, NULL
);
4861 do_spec_1 (target_system_root
, 1, NULL
);
4862 if (target_sysroot_hdrs_suffix
)
4863 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
4864 do_spec_1 (" ", 0, NULL
);
4867 info
.option
= "-isystem";
4868 info
.append
= "include";
4869 info
.append_len
= strlen (info
.append
);
4870 info
.omit_relative
= false;
4871 info
.separate_options
= true;
4873 for_each_path (&include_prefixes
, false, info
.append_len
,
4876 info
.append
= "include-fixed";
4877 if (*sysroot_hdrs_suffix_spec
)
4878 info
.append
= concat (info
.append
, dir_separator_str
,
4879 multilib_dir
, NULL
);
4880 info
.append_len
= strlen (info
.append
);
4881 for_each_path (&include_prefixes
, false, info
.append_len
,
4888 int max
= n_infiles
;
4889 max
+= lang_specific_extra_outfiles
;
4891 if (HAVE_GNU_LD
&& at_file_supplied
)
4893 /* We are going to expand `%o' to `@FILE', where FILE
4894 is a newly-created temporary filename. The filenames
4895 that would usually be expanded in place of %o will be
4896 written to the temporary file. */
4901 /* Convert OUTFILES into a form suitable for writeargv. */
4903 /* Determine how many are non-NULL. */
4904 for (n_files
= 0, i
= 0; i
< max
; i
++)
4905 n_files
+= outfiles
[i
] != NULL
;
4907 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
4909 /* Copy the strings over. */
4910 for (i
= 0, j
= 0; i
< max
; i
++)
4913 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
4918 create_at_file (argv
);
4921 for (i
= 0; i
< max
; i
++)
4923 store_arg (outfiles
[i
], 0, 0);
4928 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4933 this_is_library_file
= 1;
4937 this_is_linker_script
= 1;
4941 outfiles
[input_file_number
] = NULL
;
4945 this_is_output_file
= 1;
4950 int cur_index
= argbuf_index
;
4951 /* Handle the {...} following the %W. */
4953 fatal_error ("spec %qs has invalid %<%%W%c%>", spec
, *p
);
4954 p
= handle_braces (p
+ 1);
4958 /* If any args were output, mark the last one for deletion
4960 if (argbuf_index
!= cur_index
)
4961 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4965 /* %x{OPTION} records OPTION for %X to output. */
4971 /* Skip past the option value and make a copy. */
4973 fatal_error ("spec %qs has invalid %<%%x%c%>", spec
, *p
);
4976 string
= save_string (p1
+ 1, p
- p1
- 2);
4978 /* See if we already recorded this option. */
4979 for (i
= 0; i
< n_linker_options
; i
++)
4980 if (! strcmp (string
, linker_options
[i
]))
4986 /* This option is new; add it. */
4987 add_linker_option (string
, strlen (string
));
4991 /* Dump out the options accumulated previously using %x. */
4993 for (i
= 0; i
< n_linker_options
; i
++)
4995 do_spec_1 (linker_options
[i
], 1, NULL
);
4996 /* Make each accumulated option a separate argument. */
4997 do_spec_1 (" ", 0, NULL
);
5001 /* Dump out the options accumulated previously using -Wa,. */
5003 for (i
= 0; i
< n_assembler_options
; i
++)
5005 do_spec_1 (assembler_options
[i
], 1, NULL
);
5006 /* Make each accumulated option a separate argument. */
5007 do_spec_1 (" ", 0, NULL
);
5011 /* Dump out the options accumulated previously using -Wp,. */
5013 for (i
= 0; i
< n_preprocessor_options
; i
++)
5015 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5016 /* Make each accumulated option a separate argument. */
5017 do_spec_1 (" ", 0, NULL
);
5021 /* Here are digits and numbers that just process
5022 a certain constant string as a spec. */
5025 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5031 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5037 value
= do_spec_1 (asm_spec
, 0, NULL
);
5043 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5050 const char *const spec
5051 = (input_file_compiler
->cpp_spec
5052 ? input_file_compiler
->cpp_spec
5054 value
= do_spec_1 (spec
, 0, NULL
);
5061 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5067 value
= do_spec_1 (link_spec
, 0, NULL
);
5073 value
= do_spec_1 (lib_spec
, 0, NULL
);
5079 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5085 /* We assume there is a directory
5086 separator at the end of this string. */
5087 if (target_system_root
)
5089 obstack_grow (&obstack
, target_system_root
,
5090 strlen (target_system_root
));
5091 if (target_sysroot_suffix
)
5092 obstack_grow (&obstack
, target_sysroot_suffix
,
5093 strlen (target_sysroot_suffix
));
5098 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5103 /* Here we define characters other than letters and digits. */
5106 p
= handle_braces (p
);
5112 p
= handle_spec_function (p
);
5118 obstack_1grow (&obstack
, '%');
5125 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5127 suffix_subst
= save_string (p
- 1, len
+ 1);
5132 /* Henceforth ignore the option(s) matching the pattern
5137 int have_wildcard
= 0;
5140 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5143 if (p
[len
-1] == '*')
5146 for (i
= 0; i
< n_switches
; i
++)
5147 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5148 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5150 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5151 switches
[i
].validated
= 1;
5159 if (soft_matched_part
)
5161 do_spec_1 (soft_matched_part
, 1, NULL
);
5162 do_spec_1 (" ", 0, NULL
);
5165 /* Catch the case where a spec string contains something like
5166 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5167 hand side of the :. */
5168 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5171 /* Process a string found as the value of a spec given by name.
5172 This feature allows individual machine descriptions
5173 to add and use their own specs.
5174 %[...] modifies -D options the way %P does;
5175 %(...) uses the spec unmodified. */
5177 warning (0, "use of obsolete %%[ operator in specs");
5180 const char *name
= p
;
5181 struct spec_list
*sl
;
5184 /* The string after the S/P is the name of a spec that is to be
5186 while (*p
&& *p
!= ')' && *p
!= ']')
5189 /* See if it's in the list. */
5190 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5191 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5193 name
= *(sl
->ptr_spec
);
5195 fnotice (stderr
, "Processing spec %c%s%c, which is '%s'\n",
5196 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5205 value
= do_spec_1 (name
, 0, NULL
);
5211 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5213 const char *y
= name
;
5216 /* Copy all of NAME into BUF, but put __ after
5217 every -D and at the end of each arg. */
5220 if (! strncmp (y
, "-D", 2))
5231 && (*y
== ' ' || *y
== '\t' || *y
== '='
5232 || *y
== '}' || *y
== 0))
5245 value
= do_spec_1 (buf
, 0, NULL
);
5251 /* Discard the closing paren or bracket. */
5258 error ("spec failure: unrecognized spec option %qc", c
);
5264 /* Backslash: treat next character as ordinary. */
5269 /* Ordinary character: put it into the current argument. */
5270 obstack_1grow (&obstack
, c
);
5274 /* End of string. If we are processing a spec function, we need to
5275 end any pending argument. */
5276 if (processing_spec_function
)
5282 /* Look up a spec function. */
5284 static const struct spec_function
*
5285 lookup_spec_function (const char *name
)
5287 const struct spec_function
*sf
;
5289 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5290 if (strcmp (sf
->name
, name
) == 0)
5296 /* Evaluate a spec function. */
5299 eval_spec_function (const char *func
, const char *args
)
5301 const struct spec_function
*sf
;
5302 const char *funcval
;
5304 /* Saved spec processing context. */
5305 int save_argbuf_index
;
5306 int save_argbuf_length
;
5307 const char **save_argbuf
;
5310 int save_delete_this_arg
;
5311 int save_this_is_output_file
;
5312 int save_this_is_library_file
;
5313 int save_input_from_pipe
;
5314 int save_this_is_linker_script
;
5315 const char *save_suffix_subst
;
5318 sf
= lookup_spec_function (func
);
5320 fatal_error ("unknown spec function %qs", func
);
5322 /* Push the spec processing context. */
5323 save_argbuf_index
= argbuf_index
;
5324 save_argbuf_length
= argbuf_length
;
5325 save_argbuf
= argbuf
;
5327 save_arg_going
= arg_going
;
5328 save_delete_this_arg
= delete_this_arg
;
5329 save_this_is_output_file
= this_is_output_file
;
5330 save_this_is_library_file
= this_is_library_file
;
5331 save_this_is_linker_script
= this_is_linker_script
;
5332 save_input_from_pipe
= input_from_pipe
;
5333 save_suffix_subst
= suffix_subst
;
5335 /* Create a new spec processing context, and build the function
5339 if (do_spec_2 (args
) < 0)
5340 fatal_error ("error in args to spec function %qs", func
);
5342 /* argbuf_index is an index for the next argument to be inserted, and
5343 so contains the count of the args already inserted. */
5345 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5347 /* Pop the spec processing context. */
5348 argbuf_index
= save_argbuf_index
;
5349 argbuf_length
= save_argbuf_length
;
5351 argbuf
= save_argbuf
;
5353 arg_going
= save_arg_going
;
5354 delete_this_arg
= save_delete_this_arg
;
5355 this_is_output_file
= save_this_is_output_file
;
5356 this_is_library_file
= save_this_is_library_file
;
5357 this_is_linker_script
= save_this_is_linker_script
;
5358 input_from_pipe
= save_input_from_pipe
;
5359 suffix_subst
= save_suffix_subst
;
5364 /* Handle a spec function call of the form:
5368 ARGS is processed as a spec in a separate context and split into an
5369 argument vector in the normal fashion. The function returns a string
5370 containing a spec which we then process in the caller's context, or
5371 NULL if no processing is required. */
5374 handle_spec_function (const char *p
)
5377 const char *endp
, *funcval
;
5380 processing_spec_function
++;
5382 /* Get the function name. */
5383 for (endp
= p
; *endp
!= '\0'; endp
++)
5385 if (*endp
== '(') /* ) */
5387 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5388 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5389 fatal_error ("malformed spec function name");
5391 if (*endp
!= '(') /* ) */
5392 fatal_error ("no arguments for spec function");
5393 func
= save_string (p
, endp
- p
);
5396 /* Get the arguments. */
5397 for (count
= 0; *endp
!= '\0'; endp
++)
5406 else if (*endp
== '(') /* ) */
5411 fatal_error ("malformed spec function arguments");
5412 args
= save_string (p
, endp
- p
);
5415 /* p now points to just past the end of the spec function expression. */
5417 funcval
= eval_spec_function (func
, args
);
5418 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
5424 processing_spec_function
--;
5429 /* Inline subroutine of handle_braces. Returns true if the current
5430 input suffix matches the atom bracketed by ATOM and END_ATOM. */
5432 input_suffix_matches (const char *atom
, const char *end_atom
)
5434 return (input_suffix
5435 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
5436 && input_suffix
[end_atom
- atom
] == '\0');
5439 /* Subroutine of handle_braces. Returns true if the current
5440 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
5442 input_spec_matches (const char *atom
, const char *end_atom
)
5444 return (input_file_compiler
5445 && input_file_compiler
->suffix
5446 && input_file_compiler
->suffix
[0] != '\0'
5447 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
5449 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
5452 /* Subroutine of handle_braces. Returns true if a switch
5453 matching the atom bracketed by ATOM and END_ATOM appeared on the
5456 switch_matches (const char *atom
, const char *end_atom
, int starred
)
5459 int len
= end_atom
- atom
;
5460 int plen
= starred
? len
: -1;
5462 for (i
= 0; i
< n_switches
; i
++)
5463 if (!strncmp (switches
[i
].part1
, atom
, len
)
5464 && (starred
|| switches
[i
].part1
[len
] == '\0')
5465 && check_live_switch (i
, plen
))
5471 /* Inline subroutine of handle_braces. Mark all of the switches which
5472 match ATOM (extends to END_ATOM; STARRED indicates whether there
5473 was a star after the atom) for later processing. */
5475 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
5478 int len
= end_atom
- atom
;
5479 int plen
= starred
? len
: -1;
5481 for (i
= 0; i
< n_switches
; i
++)
5482 if (!strncmp (switches
[i
].part1
, atom
, len
)
5483 && (starred
|| switches
[i
].part1
[len
] == '\0')
5484 && check_live_switch (i
, plen
))
5485 switches
[i
].ordering
= 1;
5488 /* Inline subroutine of handle_braces. Process all the currently
5489 marked switches through give_switch, and clear the marks. */
5491 process_marked_switches (void)
5495 for (i
= 0; i
< n_switches
; i
++)
5496 if (switches
[i
].ordering
== 1)
5498 switches
[i
].ordering
= 0;
5503 /* Handle a %{ ... } construct. P points just inside the leading {.
5504 Returns a pointer one past the end of the brace block, or 0
5505 if we call do_spec_1 and that returns -1. */
5508 handle_braces (const char *p
)
5510 const char *atom
, *end_atom
;
5511 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
5512 const char *orig
= p
;
5520 bool a_must_be_last
= false;
5521 bool ordered_set
= false;
5522 bool disjunct_set
= false;
5523 bool disj_matched
= false;
5524 bool disj_starred
= true;
5525 bool n_way_choice
= false;
5526 bool n_way_matched
= false;
5528 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
5535 /* Scan one "atom" (S in the description above of %{}, possibly
5536 with '!', '.', '@', ',', or '*' modifiers). */
5538 a_is_suffix
= false;
5539 a_is_starred
= false;
5540 a_is_negated
= false;
5541 a_is_spectype
= false;
5545 p
++, a_is_negated
= true;
5549 p
++, a_is_suffix
= true;
5551 p
++, a_is_spectype
= true;
5554 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
5555 || *p
== ',' || *p
== '.' || *p
== '@')
5560 p
++, a_is_starred
= 1;
5566 /* Substitute the switch(es) indicated by the current atom. */
5568 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
5569 || a_is_spectype
|| atom
== end_atom
)
5572 mark_matching_switches (atom
, end_atom
, a_is_starred
);
5575 process_marked_switches ();
5579 /* Substitute some text if the current atom appears as a switch
5581 disjunct_set
= true;
5585 if (atom
== end_atom
)
5587 if (!n_way_choice
|| disj_matched
|| *p
== '|'
5588 || a_is_negated
|| a_is_suffix
|| a_is_spectype
5592 /* An empty term may appear as the last choice of an
5593 N-way choice set; it means "otherwise". */
5594 a_must_be_last
= true;
5595 disj_matched
= !n_way_matched
;
5596 disj_starred
= false;
5600 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
5604 disj_starred
= false;
5606 /* Don't bother testing this atom if we already have a
5608 if (!disj_matched
&& !n_way_matched
)
5611 a_matched
= input_suffix_matches (atom
, end_atom
);
5612 else if (a_is_spectype
)
5613 a_matched
= input_spec_matches (atom
, end_atom
);
5615 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
5617 if (a_matched
!= a_is_negated
)
5619 disj_matched
= true;
5621 d_end_atom
= end_atom
;
5628 /* Found the body, that is, the text to substitute if the
5629 current disjunction matches. */
5630 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
5631 disj_matched
&& !n_way_matched
);
5635 /* If we have an N-way choice, reset state for the next
5639 n_way_choice
= true;
5640 n_way_matched
|= disj_matched
;
5641 disj_matched
= false;
5642 disj_starred
= true;
5643 d_atom
= d_end_atom
= NULL
;
5652 while (*p
++ != '}');
5657 fatal_error ("braced spec %qs is invalid at %qc", orig
, *p
);
5662 /* Subroutine of handle_braces. Scan and process a brace substitution body
5663 (X in the description of %{} syntax). P points one past the colon;
5664 ATOM and END_ATOM bracket the first atom which was found to be true
5665 (present) in the current disjunction; STARRED indicates whether all
5666 the atoms in the current disjunction were starred (for syntax validation);
5667 MATCHED indicates whether the disjunction matched or not, and therefore
5668 whether or not the body is to be processed through do_spec_1 or just
5669 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
5673 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
5674 int starred
, int matched
)
5676 const char *body
, *end_body
;
5677 unsigned int nesting_level
;
5678 bool have_subst
= false;
5680 /* Locate the closing } or ;, honoring nested braces.
5681 Trim trailing whitespace. */
5690 if (!--nesting_level
)
5693 else if (*p
== ';' && nesting_level
== 1)
5695 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
5697 else if (*p
== '\0')
5703 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
5706 if (have_subst
&& !starred
)
5711 /* Copy the substitution body to permanent storage and execute it.
5712 If have_subst is false, this is a simple matter of running the
5713 body through do_spec_1... */
5714 char *string
= save_string (body
, end_body
- body
);
5717 if (do_spec_1 (string
, 0, NULL
) < 0)
5722 /* ... but if have_subst is true, we have to process the
5723 body once for each matching switch, with %* set to the
5724 variant part of the switch. */
5725 unsigned int hard_match_len
= end_atom
- atom
;
5728 for (i
= 0; i
< n_switches
; i
++)
5729 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
5730 && check_live_switch (i
, hard_match_len
))
5732 if (do_spec_1 (string
, 0,
5733 &switches
[i
].part1
[hard_match_len
]) < 0)
5735 /* Pass any arguments this switch has. */
5737 suffix_subst
= NULL
;
5745 fatal_error ("braced spec body %qs is invalid", body
);
5748 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5749 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5750 spec, or -1 if either exact match or %* is used.
5752 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5753 whose value does not begin with "no-" is obsoleted by the same value
5754 with the "no-", similarly for a switch with the "no-" prefix. */
5757 check_live_switch (int switchnum
, int prefix_length
)
5759 const char *name
= switches
[switchnum
].part1
;
5762 /* If we already processed this switch and determined if it was
5763 live or not, return our past determination. */
5764 if (switches
[switchnum
].live_cond
!= 0)
5765 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
5766 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
5767 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
5770 /* In the common case of {<at-most-one-letter>*}, a negating
5771 switch would always match, so ignore that case. We will just
5772 send the conflicting switches to the compiler phase. */
5773 if (prefix_length
>= 0 && prefix_length
<= 1)
5776 /* Now search for duplicate in a manner that depends on the name. */
5780 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5781 if (switches
[i
].part1
[0] == 'O')
5783 switches
[switchnum
].validated
= 1;
5784 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5789 case 'W': case 'f': case 'm':
5790 if (! strncmp (name
+ 1, "no-", 3))
5792 /* We have Xno-YYY, search for XYYY. */
5793 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5794 if (switches
[i
].part1
[0] == name
[0]
5795 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5797 switches
[switchnum
].validated
= 1;
5798 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5804 /* We have XYYY, search for Xno-YYY. */
5805 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5806 if (switches
[i
].part1
[0] == name
[0]
5807 && switches
[i
].part1
[1] == 'n'
5808 && switches
[i
].part1
[2] == 'o'
5809 && switches
[i
].part1
[3] == '-'
5810 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5812 switches
[switchnum
].validated
= 1;
5813 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5820 /* Otherwise the switch is live. */
5821 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
5825 /* Pass a switch to the current accumulating command
5826 in the same form that we received it.
5827 SWITCHNUM identifies the switch; it is an index into
5828 the vector of switches gcc received, which is `switches'.
5829 This cannot fail since it never finishes a command line.
5831 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
5834 give_switch (int switchnum
, int omit_first_word
)
5836 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
5839 if (!omit_first_word
)
5841 do_spec_1 ("-", 0, NULL
);
5842 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5845 if (switches
[switchnum
].args
!= 0)
5848 for (p
= switches
[switchnum
].args
; *p
; p
++)
5850 const char *arg
= *p
;
5852 do_spec_1 (" ", 0, NULL
);
5855 unsigned length
= strlen (arg
);
5858 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5859 if (arg
[length
] == '.')
5861 (CONST_CAST(char *, arg
))[length
] = 0;
5865 do_spec_1 (arg
, 1, NULL
);
5867 (CONST_CAST(char *, arg
))[length
] = '.';
5868 do_spec_1 (suffix_subst
, 1, NULL
);
5871 do_spec_1 (arg
, 1, NULL
);
5875 do_spec_1 (" ", 0, NULL
);
5876 switches
[switchnum
].validated
= 1;
5879 /* Search for a file named NAME trying various prefixes including the
5880 user's -B prefix and some standard ones.
5881 Return the absolute file name found. If nothing is found, return NAME. */
5884 find_file (const char *name
)
5886 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
5887 return newname
? newname
: name
;
5890 /* Determine whether a directory exists. If LINKER, return 0 for
5891 certain fixed names not needed by the linker. */
5894 is_directory (const char *path1
, bool linker
)
5901 /* Ensure the string ends with "/.". The resulting path will be a
5902 directory even if the given path is a symbolic link. */
5903 len1
= strlen (path1
);
5904 path
= (char *) alloca (3 + len1
);
5905 memcpy (path
, path1
, len1
);
5907 if (!IS_DIR_SEPARATOR (cp
[-1]))
5908 *cp
++ = DIR_SEPARATOR
;
5912 /* Exclude directories that the linker is known to search. */
5914 && IS_DIR_SEPARATOR (path
[0])
5916 && strncmp (path
+ 1, "lib", 3) == 0)
5918 && strncmp (path
+ 1, "usr", 3) == 0
5919 && IS_DIR_SEPARATOR (path
[4])
5920 && strncmp (path
+ 5, "lib", 3) == 0)))
5923 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5926 /* Set up the various global variables to indicate that we're processing
5927 the input file named FILENAME. */
5930 set_input (const char *filename
)
5934 gcc_input_filename
= filename
;
5935 input_filename_length
= strlen (gcc_input_filename
);
5936 input_basename
= lbasename (gcc_input_filename
);
5938 /* Find a suffix starting with the last period,
5939 and set basename_length to exclude that suffix. */
5940 basename_length
= strlen (input_basename
);
5941 suffixed_basename_length
= basename_length
;
5942 p
= input_basename
+ basename_length
;
5943 while (p
!= input_basename
&& *p
!= '.')
5945 if (*p
== '.' && p
!= input_basename
)
5947 basename_length
= p
- input_basename
;
5948 input_suffix
= p
+ 1;
5953 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5954 we will need to do a stat on the gcc_input_filename. The
5955 INPUT_STAT_SET signals that the stat is needed. */
5959 /* On fatal signals, delete all the temporary files. */
5962 fatal_signal (int signum
)
5964 signal (signum
, SIG_DFL
);
5965 delete_failure_queue ();
5966 delete_temp_files ();
5967 /* Get the same signal again, this time not handled,
5968 so its normal effect occurs. */
5969 kill (getpid (), signum
);
5972 /* Compare the contents of the two files named CMPFILE[0] and
5973 CMPFILE[1]. Return zero if they're identical, nonzero
5977 compare_files (char *cmpfile
[])
5980 FILE *temp
[2] = { NULL
, NULL
};
5986 void *map
[2] = { NULL
, NULL
};
5988 for (i
= 0; i
< 2; i
++)
5992 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
5994 error ("%s: could not determine length of compare-debug file %s",
5995 gcc_input_filename
, cmpfile
[i
]);
6000 length
[i
] = st
.st_size
;
6003 if (!ret
&& length
[0] != length
[1])
6005 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
6010 for (i
= 0; i
< 2; i
++)
6012 int fd
= open (cmpfile
[i
], O_RDONLY
);
6015 error ("%s: could not open compare-debug file %s",
6016 gcc_input_filename
, cmpfile
[i
]);
6021 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6024 if (map
[i
] == (void *) MAP_FAILED
)
6033 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6035 error ("%s: -fcompare-debug failure", gcc_input_filename
);
6040 for (i
= 0; i
< 2; i
++)
6042 munmap ((caddr_t
) map
[i
], length
[i
]);
6051 for (i
= 0; i
< 2; i
++)
6053 temp
[i
] = fopen (cmpfile
[i
], "r");
6056 error ("%s: could not open compare-debug file %s",
6057 gcc_input_filename
, cmpfile
[i
]);
6063 if (!ret
&& temp
[0] && temp
[1])
6067 c0
= fgetc (temp
[0]);
6068 c1
= fgetc (temp
[1]);
6072 error ("%s: -fcompare-debug failure",
6073 gcc_input_filename
);
6082 for (i
= 1; i
>= 0; i
--)
6091 extern int main (int, char **);
6094 main (int argc
, char **argv
)
6098 int linker_was_run
= 0;
6099 int lang_n_infiles
= 0;
6100 int num_linker_inputs
= 0;
6101 char *explicit_link_files
;
6104 struct user_specs
*uptr
;
6105 char **old_argv
= argv
;
6106 struct cl_decoded_option
*decoded_options
;
6107 unsigned int decoded_options_count
;
6109 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6110 on ?: in file-scope variable initializations. */
6111 asm_debug
= ASM_DEBUG_SPEC
;
6113 p
= argv
[0] + strlen (argv
[0]);
6114 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6118 xmalloc_set_program_name (progname
);
6120 expandargv (&argc
, &argv
);
6122 /* Determine if any expansions were made. */
6123 if (argv
!= old_argv
)
6124 at_file_supplied
= true;
6126 global_options
= global_options_init
;
6128 decode_cmdline_options_to_array (argc
, CONST_CAST2 (const char **, char **,
6131 &decoded_options
, &decoded_options_count
);
6133 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6134 /* Perform host dependent initialization when needed. */
6135 GCC_DRIVER_HOST_INITIALIZATION
;
6138 /* Unlock the stdio streams. */
6139 unlock_std_streams ();
6141 gcc_init_libintl ();
6143 diagnostic_initialize (global_dc
, 0);
6144 if (atexit (delete_temp_files
) != 0)
6145 fatal_error ("atexit failed");
6147 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6148 signal (SIGINT
, fatal_signal
);
6150 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6151 signal (SIGHUP
, fatal_signal
);
6153 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6154 signal (SIGTERM
, fatal_signal
);
6156 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6157 signal (SIGPIPE
, fatal_signal
);
6160 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6161 receive the signal. A different setting is inheritable */
6162 signal (SIGCHLD
, SIG_DFL
);
6165 /* Allocate the argument vector. */
6168 obstack_init (&obstack
);
6170 /* Build multilib_select, et. al from the separate lines that make up each
6171 multilib selection. */
6173 const char *const *q
= multilib_raw
;
6176 obstack_init (&multilib_obstack
);
6177 while ((p
= *q
++) != (char *) 0)
6178 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6180 obstack_1grow (&multilib_obstack
, 0);
6181 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6183 q
= multilib_matches_raw
;
6184 while ((p
= *q
++) != (char *) 0)
6185 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6187 obstack_1grow (&multilib_obstack
, 0);
6188 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6190 q
= multilib_exclusions_raw
;
6191 while ((p
= *q
++) != (char *) 0)
6192 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6194 obstack_1grow (&multilib_obstack
, 0);
6195 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6198 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6201 obstack_1grow (&multilib_obstack
, ' ');
6202 obstack_grow (&multilib_obstack
,
6203 multilib_defaults_raw
[i
],
6204 strlen (multilib_defaults_raw
[i
]));
6208 obstack_1grow (&multilib_obstack
, 0);
6209 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6212 #ifdef INIT_ENVIRONMENT
6213 /* Set up any other necessary machine specific environment variables. */
6214 xputenv (INIT_ENVIRONMENT
);
6217 /* Make a table of what switches there are (switches, n_switches).
6218 Make a table of specified input files (infiles, n_infiles).
6219 Decode switches that are handled locally. */
6221 process_command (decoded_options_count
, decoded_options
);
6223 /* Initialize the vector of specs to just the default.
6224 This means one element containing 0s, as a terminator. */
6226 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6227 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6228 n_compilers
= n_default_compilers
;
6230 /* Read specs from a file if there is one. */
6232 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6233 spec_version
, dir_separator_str
, NULL
);
6234 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6236 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6237 /* Read the specs file unless it is a default one. */
6238 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6239 read_specs (specs_file
, TRUE
);
6243 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6244 for any override of as, ld and libraries. */
6245 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6246 + strlen (just_machine_suffix
) + sizeof ("specs"));
6248 strcpy (specs_file
, standard_exec_prefix
);
6249 strcat (specs_file
, just_machine_suffix
);
6250 strcat (specs_file
, "specs");
6251 if (access (specs_file
, R_OK
) == 0)
6252 read_specs (specs_file
, TRUE
);
6254 /* Process any configure-time defaults specified for the command line
6255 options, via OPTION_DEFAULT_SPECS. */
6256 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6257 do_option_spec (option_default_specs
[i
].name
,
6258 option_default_specs
[i
].spec
);
6260 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6261 of the command line. */
6263 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6264 do_self_spec (driver_self_specs
[i
]);
6268 enum save_temps save
;
6270 if (!compare_debug_second
)
6272 n_switches_debug_check
[1] = n_switches
;
6273 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6274 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6277 do_self_spec ("%:compare-debug-self-opt()");
6278 n_switches_debug_check
[0] = n_switches
;
6279 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
6280 switches_debug_check
[0] = switches
;
6282 n_switches
= n_switches_debug_check
[1];
6283 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6284 switches
= switches_debug_check
[1];
6287 /* Avoid crash when computing %j in this early. */
6288 save
= save_temps_flag
;
6289 save_temps_flag
= SAVE_TEMPS_NONE
;
6291 compare_debug
= -compare_debug
;
6292 do_self_spec ("%:compare-debug-self-opt()");
6294 save_temps_flag
= save
;
6296 if (!compare_debug_second
)
6298 n_switches_debug_check
[1] = n_switches
;
6299 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
6300 switches_debug_check
[1] = switches
;
6301 compare_debug
= -compare_debug
;
6302 n_switches
= n_switches_debug_check
[0];
6303 n_switches_alloc
= n_switches_debug_check
[0];
6304 switches
= switches_debug_check
[0];
6308 /* If not cross-compiling, look for executables in the standard
6310 if (*cross_compile
== '0')
6312 if (*md_exec_prefix
)
6314 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6315 PREFIX_PRIORITY_LAST
, 0, 0);
6319 /* Process sysroot_suffix_spec. */
6320 if (*sysroot_suffix_spec
!= 0
6321 && do_spec_2 (sysroot_suffix_spec
) == 0)
6323 if (argbuf_index
> 1)
6324 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6325 else if (argbuf_index
== 1)
6326 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6329 #ifdef HAVE_LD_SYSROOT
6330 /* Pass the --sysroot option to the linker, if it supports that. If
6331 there is a sysroot_suffix_spec, it has already been processed by
6332 this point, so target_system_root really is the system root we
6334 if (target_system_root
)
6336 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6337 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6338 set_spec ("link", XOBFINISH (&obstack
, const char *));
6342 /* Process sysroot_hdrs_suffix_spec. */
6343 if (*sysroot_hdrs_suffix_spec
!= 0
6344 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6346 if (argbuf_index
> 1)
6347 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6348 else if (argbuf_index
== 1)
6349 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6352 /* Look for startfiles in the standard places. */
6353 if (*startfile_prefix_spec
!= 0
6354 && do_spec_2 (startfile_prefix_spec
) == 0
6355 && do_spec_1 (" ", 0, NULL
) == 0)
6358 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6359 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6360 PREFIX_PRIORITY_LAST
, 0, 1);
6362 /* We should eventually get rid of all these and stick to
6363 startfile_prefix_spec exclusively. */
6364 else if (*cross_compile
== '0' || target_system_root
)
6366 if (*md_startfile_prefix
)
6367 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6368 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6370 if (*md_startfile_prefix_1
)
6371 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6372 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6374 /* If standard_startfile_prefix is relative, base it on
6375 standard_exec_prefix. This lets us move the installed tree
6376 as a unit. If GCC_EXEC_PREFIX is defined, base
6377 standard_startfile_prefix on that as well.
6379 If the prefix is relative, only search it for native compilers;
6380 otherwise we will search a directory containing host libraries. */
6381 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6382 add_sysrooted_prefix (&startfile_prefixes
,
6383 standard_startfile_prefix
, "BINUTILS",
6384 PREFIX_PRIORITY_LAST
, 0, 1);
6385 else if (*cross_compile
== '0')
6387 add_prefix (&startfile_prefixes
,
6388 concat (gcc_exec_prefix
6389 ? gcc_exec_prefix
: standard_exec_prefix
,
6391 standard_startfile_prefix
, NULL
),
6392 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6395 /* Sysrooted prefixes are relocated because target_system_root is
6396 also relocated by gcc_exec_prefix. */
6397 if (*standard_startfile_prefix_1
)
6398 add_sysrooted_prefix (&startfile_prefixes
,
6399 standard_startfile_prefix_1
, "BINUTILS",
6400 PREFIX_PRIORITY_LAST
, 0, 1);
6401 if (*standard_startfile_prefix_2
)
6402 add_sysrooted_prefix (&startfile_prefixes
,
6403 standard_startfile_prefix_2
, "BINUTILS",
6404 PREFIX_PRIORITY_LAST
, 0, 1);
6407 /* Process any user specified specs in the order given on the command
6409 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
6411 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
6413 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
6416 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
6417 if (gcc_exec_prefix
)
6418 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
6419 spec_version
, dir_separator_str
, NULL
);
6421 /* Now we have the specs.
6422 Set the `valid' bits for switches that match anything in any spec. */
6424 validate_all_switches ();
6426 /* Now that we have the switches and the specs, set
6427 the subdirectory based on the options. */
6428 set_multilib_dir ();
6430 /* Set up to remember the pathname of gcc and any options
6431 needed for collect. We use argv[0] instead of progname because
6432 we need the complete pathname. */
6433 obstack_init (&collect_obstack
);
6434 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6435 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6436 xputenv (XOBFINISH (&collect_obstack
, char *));
6438 /* Set up to remember the pathname of the lto wrapper. */
6440 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
6441 if (lto_wrapper_spec
)
6443 obstack_init (&collect_obstack
);
6444 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
6445 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
6446 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
6447 strlen (lto_wrapper_spec
) + 1);
6448 xputenv (XOBFINISH (&collect_obstack
, char *));
6451 /* Warn about any switches that no pass was interested in. */
6453 for (i
= 0; (int) i
< n_switches
; i
++)
6454 if (! switches
[i
].validated
)
6455 error ("unrecognized option %<-%s%>", switches
[i
].part1
);
6457 /* Obey some of the options. */
6459 if (print_search_dirs
)
6461 printf (_("install: %s%s\n"),
6462 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
6463 gcc_exec_prefix
? "" : machine_suffix
);
6464 printf (_("programs: %s\n"),
6465 build_search_list (&exec_prefixes
, "", false, false));
6466 printf (_("libraries: %s\n"),
6467 build_search_list (&startfile_prefixes
, "", false, true));
6471 if (print_file_name
)
6473 printf ("%s\n", find_file (print_file_name
));
6477 if (print_prog_name
)
6479 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
6480 printf ("%s\n", (newname
? newname
: print_prog_name
));
6484 if (print_multi_lib
)
6486 print_multilib_info ();
6490 if (print_multi_directory
)
6492 if (multilib_dir
== NULL
)
6495 printf ("%s\n", multilib_dir
);
6501 if (target_system_root
)
6503 if (target_sysroot_suffix
)
6504 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
6506 printf ("%s\n", target_system_root
);
6511 if (print_multi_os_directory
)
6513 if (multilib_os_dir
== NULL
)
6516 printf ("%s\n", multilib_os_dir
);
6520 if (print_sysroot_headers_suffix
)
6522 if (*sysroot_hdrs_suffix_spec
)
6524 printf("%s\n", (target_sysroot_hdrs_suffix
6525 ? target_sysroot_hdrs_suffix
6530 /* The error status indicates that only one set of fixed
6531 headers should be built. */
6532 fatal_error ("not configured with sysroot headers suffix");
6535 if (print_help_list
)
6541 printf (_("\nFor bug reporting instructions, please see:\n"));
6542 printf ("%s.\n", bug_report_url
);
6547 /* We do not exit here. Instead we have created a fake input file
6548 called 'help-dummy' which needs to be compiled, and we pass this
6549 on the various sub-processes, along with the --help switch.
6550 Ensure their output appears after ours. */
6551 fputc ('\n', stdout
);
6557 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
6559 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
6561 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
6562 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
6567 /* We do not exit here. We use the same mechanism of --help to print
6568 the version of the sub-processes. */
6569 fputc ('\n', stdout
);
6578 fnotice (stderr
, "Target: %s\n", spec_machine
);
6579 fnotice (stderr
, "Configured with: %s\n", configuration_arguments
);
6581 #ifdef THREAD_MODEL_SPEC
6582 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6583 but there's no point in doing all this processing just to get
6584 thread_model back. */
6585 obstack_init (&obstack
);
6586 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6587 obstack_1grow (&obstack
, '\0');
6588 thrmod
= XOBFINISH (&obstack
, const char *);
6590 thrmod
= thread_model
;
6593 fnotice (stderr
, "Thread model: %s\n", thrmod
);
6595 /* compiler_version is truncated at the first space when initialized
6596 from version string, so truncate version_string at the first space
6597 before comparing. */
6598 for (n
= 0; version_string
[n
]; n
++)
6599 if (version_string
[n
] == ' ')
6602 if (! strncmp (version_string
, compiler_version
, n
)
6603 && compiler_version
[n
] == 0)
6604 fnotice (stderr
, "gcc version %s %s\n", version_string
,
6607 fnotice (stderr
, "gcc driver version %s %sexecuting gcc version %s\n",
6608 version_string
, pkgversion_string
, compiler_version
);
6614 if (n_infiles
== added_libraries
)
6615 fatal_error ("no input files");
6617 /* Make a place to record the compiler output file names
6618 that correspond to the input files. */
6621 i
+= lang_specific_extra_outfiles
;
6622 outfiles
= XCNEWVEC (const char *, i
);
6624 /* Record which files were specified explicitly as link input. */
6626 explicit_link_files
= XCNEWVEC (char, n_infiles
);
6628 combine_inputs
= have_o
|| flag_wpa
;
6630 for (i
= 0; (int) i
< n_infiles
; i
++)
6632 const char *name
= infiles
[i
].name
;
6633 struct compiler
*compiler
= lookup_compiler (name
,
6635 infiles
[i
].language
);
6637 if (compiler
&& !(compiler
->combinable
))
6638 combine_inputs
= false;
6640 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
6641 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6642 infiles
[i
].incompiler
= compiler
;
6646 input_file_compiler
= compiler
;
6647 infiles
[i
].incompiler
= compiler
;
6651 /* Since there is no compiler for this input file, assume it is a
6653 explicit_link_files
[i
] = 1;
6654 infiles
[i
].incompiler
= NULL
;
6656 infiles
[i
].compiled
= false;
6657 infiles
[i
].preprocessed
= false;
6660 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
6661 fatal_error ("cannot specify -o with -c, -S or -E with multiple files");
6663 for (i
= 0; (int) i
< n_infiles
; i
++)
6665 int this_file_error
= 0;
6667 /* Tell do_spec what to substitute for %i. */
6669 input_file_number
= i
;
6670 set_input (infiles
[i
].name
);
6672 if (infiles
[i
].compiled
)
6675 /* Use the same thing in %o, unless cp->spec says otherwise. */
6677 outfiles
[i
] = gcc_input_filename
;
6679 /* Figure out which compiler from the file's suffix. */
6682 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6683 infiles
[i
].language
);
6685 if (input_file_compiler
)
6687 /* Ok, we found an applicable compiler. Run its spec. */
6689 if (input_file_compiler
->spec
[0] == '#')
6691 error ("%s: %s compiler not installed on this system",
6692 gcc_input_filename
, &input_file_compiler
->spec
[1]);
6693 this_file_error
= 1;
6699 if (debug_check_temp_file
[0])
6700 free (debug_check_temp_file
[0]);
6701 debug_check_temp_file
[0] = NULL
;
6703 if (debug_check_temp_file
[1])
6704 free (debug_check_temp_file
[1]);
6705 debug_check_temp_file
[1] = NULL
;
6708 value
= do_spec (input_file_compiler
->spec
);
6709 infiles
[i
].compiled
= true;
6711 this_file_error
= 1;
6712 else if (compare_debug
&& debug_check_temp_file
[0])
6715 inform (0, "recompiling with -fcompare-debug");
6717 compare_debug
= -compare_debug
;
6718 n_switches
= n_switches_debug_check
[1];
6719 n_switches_alloc
= n_switches_alloc_debug_check
[1];
6720 switches
= switches_debug_check
[1];
6722 value
= do_spec (input_file_compiler
->spec
);
6724 compare_debug
= -compare_debug
;
6725 n_switches
= n_switches_debug_check
[0];
6726 n_switches_alloc
= n_switches_alloc_debug_check
[0];
6727 switches
= switches_debug_check
[0];
6731 error ("during -fcompare-debug recompilation");
6732 this_file_error
= 1;
6735 gcc_assert (debug_check_temp_file
[1]
6736 && strcmp (debug_check_temp_file
[0],
6737 debug_check_temp_file
[1]));
6740 inform (0, "comparing final insns dumps");
6742 if (compare_files (debug_check_temp_file
))
6743 this_file_error
= 1;
6748 if (debug_check_temp_file
[0])
6749 free (debug_check_temp_file
[0]);
6750 debug_check_temp_file
[0] = NULL
;
6752 if (debug_check_temp_file
[1])
6753 free (debug_check_temp_file
[1]);
6754 debug_check_temp_file
[1] = NULL
;
6759 /* If this file's name does not contain a recognized suffix,
6760 record it as explicit linker input. */
6763 explicit_link_files
[i
] = 1;
6765 /* Clear the delete-on-failure queue, deleting the files in it
6766 if this compilation failed. */
6768 if (this_file_error
)
6770 delete_failure_queue ();
6773 /* If this compilation succeeded, don't delete those files later. */
6774 clear_failure_queue ();
6777 /* Reset the input file name to the first compile/object file name, for use
6778 with %b in LINK_SPEC. We use the first input file that we can find
6779 a compiler to compile it instead of using infiles.language since for
6780 languages other than C we use aliases that we then lookup later. */
6785 for (i
= 0; i
< n_infiles
; i
++)
6786 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
6788 set_input (infiles
[i
].name
);
6795 /* Make sure INPUT_FILE_NUMBER points to first available open
6797 input_file_number
= n_infiles
;
6798 if (lang_specific_pre_link ())
6802 /* Determine if there are any linker input files. */
6803 num_linker_inputs
= 0;
6804 for (i
= 0; (int) i
< n_infiles
; i
++)
6805 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
6806 num_linker_inputs
++;
6808 /* Run ld to link all the compiler output files. */
6810 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
6812 int tmp
= execution_count
;
6813 const char *fuse_linker_plugin
= "fuse-linker-plugin";
6815 /* We'll use ld if we can't find collect2. */
6816 if (! strcmp (linker_name_spec
, "collect2"))
6818 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
6820 linker_name_spec
= "ld";
6823 if (switch_matches (fuse_linker_plugin
,
6824 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
6826 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
6827 LTOPLUGINSONAME
, R_OK
,
6829 if (!linker_plugin_file_spec
)
6830 fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME
" not found");
6832 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
6834 if (!lto_libgcc_spec
)
6835 fatal_error ("could not find libgcc.a");
6837 lto_gcc_spec
= argv
[0];
6839 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6841 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
6842 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
6844 if (print_subprocess_help
== 1)
6846 printf (_("\nLinker options\n==============\n\n"));
6847 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
6848 " to the linker.\n\n"));
6851 value
= do_spec (link_command_spec
);
6854 linker_was_run
= (tmp
!= execution_count
);
6857 /* If options said don't run linker,
6858 complain about input files to be given to the linker. */
6860 if (! linker_was_run
&& !seen_error ())
6861 for (i
= 0; (int) i
< n_infiles
; i
++)
6862 if (explicit_link_files
[i
]
6863 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
6864 warning (0, "%s: linker input file unused because linking not done",
6867 /* Delete some or all of the temporary files we made. */
6870 delete_failure_queue ();
6871 delete_temp_files ();
6873 if (print_help_list
)
6875 printf (("\nFor bug reporting instructions, please see:\n"));
6876 printf ("%s\n", bug_report_url
);
6879 return (signal_count
!= 0 ? 2
6880 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
6884 /* Find the proper compilation spec for the file name NAME,
6885 whose length is LENGTH. LANGUAGE is the specified language,
6886 or 0 if this file is to be passed to the linker. */
6888 static struct compiler
*
6889 lookup_compiler (const char *name
, size_t length
, const char *language
)
6891 struct compiler
*cp
;
6893 /* If this was specified by the user to be a linker input, indicate that. */
6894 if (language
!= 0 && language
[0] == '*')
6897 /* Otherwise, look for the language, if one is spec'd. */
6900 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6901 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6904 error ("language %s not recognized", language
);
6908 /* Look for a suffix. */
6909 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6911 if (/* The suffix `-' matches only the file name `-'. */
6912 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6913 || (strlen (cp
->suffix
) < length
6914 /* See if the suffix matches the end of NAME. */
6915 && !strcmp (cp
->suffix
,
6916 name
+ length
- strlen (cp
->suffix
))
6921 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6922 /* Look again, but case-insensitively this time. */
6924 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6926 if (/* The suffix `-' matches only the file name `-'. */
6927 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6928 || (strlen (cp
->suffix
) < length
6929 /* See if the suffix matches the end of NAME. */
6930 && ((!strcmp (cp
->suffix
,
6931 name
+ length
- strlen (cp
->suffix
))
6932 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6933 && !strcasecmp (cp
->suffix
,
6934 name
+ length
- strlen (cp
->suffix
)))
6940 if (cp
>= compilers
)
6942 if (cp
->spec
[0] != '@')
6943 /* A non-alias entry: return it. */
6946 /* An alias entry maps a suffix to a language.
6947 Search for the language; pass 0 for NAME and LENGTH
6948 to avoid infinite recursion if language not found. */
6949 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6955 save_string (const char *s
, int len
)
6957 char *result
= XNEWVEC (char, len
+ 1);
6959 memcpy (result
, s
, len
);
6965 pfatal_with_name (const char *name
)
6967 perror_with_name (name
);
6968 delete_temp_files ();
6973 perror_with_name (const char *name
)
6975 error ("%s: %m", name
);
6979 validate_switches_from_spec (const char *spec
)
6981 const char *p
= spec
;
6984 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
6985 /* We have a switch spec. */
6986 p
= validate_switches (p
+ 1);
6990 validate_all_switches (void)
6992 struct compiler
*comp
;
6993 struct spec_list
*spec
;
6995 for (comp
= compilers
; comp
->spec
; comp
++)
6996 validate_switches_from_spec (comp
->spec
);
6998 /* Look through the linked list of specs read from the specs file. */
6999 for (spec
= specs
; spec
; spec
= spec
->next
)
7000 validate_switches_from_spec (*spec
->ptr_spec
);
7002 validate_switches_from_spec (link_command_spec
);
7005 /* Look at the switch-name that comes after START
7006 and mark as valid all supplied switches that match it. */
7009 validate_switches (const char *start
)
7011 const char *p
= start
;
7015 bool suffix
= false;
7016 bool starred
= false;
7018 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7027 if (*p
== '.' || *p
== ',')
7031 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7032 || *p
== ',' || *p
== '.' || *p
== '@')
7037 starred
= true, p
++;
7043 /* Mark all matching switches as valid. */
7044 for (i
= 0; i
< n_switches
; i
++)
7045 if (!strncmp (switches
[i
].part1
, atom
, len
)
7046 && (starred
|| switches
[i
].part1
[len
] == 0))
7047 switches
[i
].validated
= 1;
7051 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7054 if (*p
&& p
[-1] == ':')
7056 while (*p
&& *p
!= ';' && *p
!= '}')
7061 if (*p
== '{' || *p
== '<')
7062 p
= validate_switches (p
+1);
7063 else if (p
[0] == 'W' && p
[1] == '{')
7064 p
= validate_switches (p
+2);
7071 if (*p
&& p
[-1] == ';')
7085 static struct mdswitchstr
*mdswitches
;
7086 static int n_mdswitches
;
7088 /* Check whether a particular argument was used. The first time we
7089 canonicalize the switches to keep only the ones we care about. */
7092 used_arg (const char *p
, int len
)
7097 const char *replace
;
7102 static struct mswitchstr
*mswitches
;
7103 static int n_mswitches
;
7108 struct mswitchstr
*matches
;
7112 /* Break multilib_matches into the component strings of string
7113 and replacement string. */
7114 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7119 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7121 q
= multilib_matches
;
7130 fatal_error ("multilib spec %qs is invalid",
7135 matches
[i
].len
= q
- matches
[i
].str
;
7137 matches
[i
].replace
= ++q
;
7138 while (*q
!= ';' && *q
!= '\0')
7141 goto invalid_matches
;
7144 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7150 /* Now build a list of the replacement string for switches that we care
7151 about. Make sure we allocate at least one entry. This prevents
7152 xmalloc from calling fatal, and prevents us from re-executing this
7155 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7156 for (i
= 0; i
< n_switches
; i
++)
7157 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7159 int xlen
= strlen (switches
[i
].part1
);
7160 for (j
= 0; j
< cnt
; j
++)
7161 if (xlen
== matches
[j
].len
7162 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7164 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7165 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7166 mswitches
[n_mswitches
].replace
= (char *) 0;
7167 mswitches
[n_mswitches
].rep_len
= 0;
7173 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7174 on the command line nor any options mutually incompatible with
7176 for (i
= 0; i
< n_mdswitches
; i
++)
7180 for (q
= multilib_options
; *q
!= '\0'; q
++)
7186 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7187 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7189 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7196 if (*q
!= ' ' && *q
!= '\0')
7198 while (*r
!= ' ' && *r
!= '\0')
7201 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7204 if (used_arg (r
, q
- r
))
7209 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7210 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7211 mswitches
[n_mswitches
].replace
= (char *) 0;
7212 mswitches
[n_mswitches
].rep_len
= 0;
7225 for (i
= 0; i
< n_mswitches
; i
++)
7226 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7233 default_arg (const char *p
, int len
)
7237 for (i
= 0; i
< n_mdswitches
; i
++)
7238 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7244 /* Work out the subdirectory to use based on the options. The format of
7245 multilib_select is a list of elements. Each element is a subdirectory
7246 name followed by a list of options followed by a semicolon. The format
7247 of multilib_exclusions is the same, but without the preceding
7248 directory. First gcc will check the exclusions, if none of the options
7249 beginning with an exclamation point are present, and all of the other
7250 options are present, then we will ignore this completely. Passing
7251 that, gcc will consider each multilib_select in turn using the same
7252 rules for matching the options. If a match is found, that subdirectory
7256 set_multilib_dir (void)
7259 unsigned int this_path_len
;
7260 const char *this_path
, *this_arg
;
7261 const char *start
, *end
;
7263 int ok
, ndfltok
, first
;
7266 start
= multilib_defaults
;
7267 while (*start
== ' ' || *start
== '\t')
7269 while (*start
!= '\0')
7272 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7274 while (*start
== ' ' || *start
== '\t')
7282 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7283 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7285 while (*start
== ' ' || *start
== '\t')
7291 for (end
= start
+ 1;
7292 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7295 obstack_grow (&multilib_obstack
, start
, end
- start
);
7296 obstack_1grow (&multilib_obstack
, 0);
7297 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7298 mdswitches
[i
++].len
= end
- start
;
7305 p
= multilib_exclusions
;
7308 /* Ignore newlines. */
7315 /* Check the arguments. */
7322 fatal_error ("multilib exclusions %qs is invalid",
7323 multilib_exclusions
);
7333 while (*p
!= ' ' && *p
!= ';')
7336 goto invalid_exclusions
;
7340 if (*this_arg
!= '!')
7348 ok
= used_arg (this_arg
, p
- this_arg
);
7363 p
= multilib_select
;
7366 /* Ignore newlines. */
7373 /* Get the initial path. */
7380 fatal_error ("multilib select %qs is invalid",
7385 this_path_len
= p
- this_path
;
7387 /* Check the arguments. */
7394 goto invalid_select
;
7403 while (*p
!= ' ' && *p
!= ';')
7406 goto invalid_select
;
7410 if (*this_arg
!= '!')
7418 /* If this is a default argument, we can just ignore it.
7419 This is true even if this_arg begins with '!'. Beginning
7420 with '!' does not mean that this argument is necessarily
7421 inappropriate for this library: it merely means that
7422 there is a more specific library which uses this
7423 argument. If this argument is a default, we need not
7424 consider that more specific library. */
7425 ok
= used_arg (this_arg
, p
- this_arg
);
7432 if (default_arg (this_arg
, p
- this_arg
))
7441 if (this_path_len
!= 1
7442 || this_path
[0] != '.')
7444 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
7447 strncpy (new_multilib_dir
, this_path
, this_path_len
);
7448 new_multilib_dir
[this_path_len
] = '\0';
7449 q
= strchr (new_multilib_dir
, ':');
7452 multilib_dir
= new_multilib_dir
;
7459 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
7461 while (q
< end
&& *q
!= ':')
7465 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
7466 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
7467 new_multilib_os_dir
[end
- q
- 1] = '\0';
7468 multilib_os_dir
= new_multilib_os_dir
;
7476 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
7477 && strcmp (multilib_os_dir
, ".") == 0)
7479 free (CONST_CAST (char *, multilib_os_dir
));
7480 multilib_os_dir
= NULL
;
7482 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
7483 multilib_os_dir
= multilib_dir
;
7486 /* Print out the multiple library subdirectory selection
7487 information. This prints out a series of lines. Each line looks
7488 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
7489 required. Only the desired options are printed out, the negative
7490 matches. The options are print without a leading dash. There are
7491 no spaces to make it easy to use the information in the shell.
7492 Each subdirectory is printed only once. This assumes the ordering
7493 generated by the genmultilib script. Also, we leave out ones that match
7497 print_multilib_info (void)
7499 const char *p
= multilib_select
;
7500 const char *last_path
= 0, *this_path
;
7502 unsigned int last_path_len
= 0;
7507 /* Ignore newlines. */
7514 /* Get the initial path. */
7521 fatal_error ("multilib select %qs is invalid", multilib_select
);
7527 /* When --disable-multilib was used but target defines
7528 MULTILIB_OSDIRNAMES, entries starting with .: are there just
7529 to find multilib_os_dir, so skip them from output. */
7530 if (this_path
[0] == '.' && this_path
[1] == ':')
7533 /* Check for matches with the multilib_exclusions. We don't bother
7534 with the '!' in either list. If any of the exclusion rules match
7535 all of its options with the select rule, we skip it. */
7537 const char *e
= multilib_exclusions
;
7538 const char *this_arg
;
7543 /* Ignore newlines. */
7550 /* Check the arguments. */
7559 fatal_error ("multilib exclusion %qs is invalid",
7560 multilib_exclusions
);
7571 while (*e
!= ' ' && *e
!= ';')
7574 goto invalid_exclusion
;
7582 int len
= e
- this_arg
;
7585 goto invalid_select
;
7589 while (*q
!= ' ' && *q
!= ';')
7592 goto invalid_select
;
7596 if (! strncmp (arg
, this_arg
,
7597 (len
< q
- arg
) ? q
- arg
: len
)
7598 || default_arg (this_arg
, e
- this_arg
))
7628 /* If this is a duplicate, skip it. */
7629 skip
= (last_path
!= 0
7630 && (unsigned int) (p
- this_path
) == last_path_len
7631 && ! strncmp (last_path
, this_path
, last_path_len
));
7633 last_path
= this_path
;
7634 last_path_len
= p
- this_path
;
7637 /* If this directory requires any default arguments, we can skip
7638 it. We will already have printed a directory identical to
7639 this one which does not require that default argument. */
7650 goto invalid_select
;
7657 while (*q
!= ' ' && *q
!= ';')
7660 goto invalid_select
;
7665 && default_arg (arg
, q
- arg
))
7680 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
7691 goto invalid_select
;
7699 use_arg
= *p
!= '!';
7704 while (*p
!= ' ' && *p
!= ';')
7707 goto invalid_select
;
7719 /* If there are extra options, print them now. */
7720 if (multilib_extra
&& *multilib_extra
)
7722 int print_at
= TRUE
;
7725 for (q
= multilib_extra
; *q
!= '\0'; q
++)
7746 /* getenv built-in spec function.
7748 Returns the value of the environment variable given by its first
7749 argument, concatenated with the second argument. If the
7750 environment variable is not defined, a fatal error is issued. */
7753 getenv_spec_function (int argc
, const char **argv
)
7763 value
= getenv (argv
[0]);
7765 fatal_error ("environment variable %qs not defined", argv
[0]);
7767 /* We have to escape every character of the environment variable so
7768 they are not interpreted as active spec characters. A
7769 particularly painful case is when we are reading a variable
7770 holding a windows path complete with \ separators. */
7771 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
7772 result
= XNEWVAR (char, len
);
7773 for (ptr
= result
; *value
; ptr
+= 2)
7779 strcpy (ptr
, argv
[1]);
7784 /* if-exists built-in spec function.
7786 Checks to see if the file specified by the absolute pathname in
7787 ARGS exists. Returns that pathname if found.
7789 The usual use for this function is to check for a library file
7790 (whose name has been expanded with %s). */
7793 if_exists_spec_function (int argc
, const char **argv
)
7795 /* Must have only one argument. */
7796 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7802 /* if-exists-else built-in spec function.
7804 This is like if-exists, but takes an additional argument which
7805 is returned if the first argument does not exist. */
7808 if_exists_else_spec_function (int argc
, const char **argv
)
7810 /* Must have exactly two arguments. */
7814 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
7820 /* replace-outfile built-in spec function.
7822 This looks for the first argument in the outfiles array's name and
7823 replaces it with the second argument. */
7826 replace_outfile_spec_function (int argc
, const char **argv
)
7829 /* Must have exactly two arguments. */
7833 for (i
= 0; i
< n_infiles
; i
++)
7835 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7836 outfiles
[i
] = xstrdup (argv
[1]);
7841 /* remove-outfile built-in spec function.
7843 * This looks for the first argument in the outfiles array's name and
7847 remove_outfile_spec_function (int argc
, const char **argv
)
7850 /* Must have exactly one argument. */
7854 for (i
= 0; i
< n_infiles
; i
++)
7856 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
7862 /* Given two version numbers, compares the two numbers.
7863 A version number must match the regular expression
7864 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
7867 compare_version_strings (const char *v1
, const char *v2
)
7872 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
7873 REG_EXTENDED
| REG_NOSUB
) != 0)
7875 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
7876 if (rresult
== REG_NOMATCH
)
7877 fatal_error ("invalid version number %qs", v1
);
7878 else if (rresult
!= 0)
7880 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
7881 if (rresult
== REG_NOMATCH
)
7882 fatal_error ("invalid version number %qs", v2
);
7883 else if (rresult
!= 0)
7886 return strverscmp (v1
, v2
);
7890 /* version_compare built-in spec function.
7892 This takes an argument of the following form:
7894 <comparison-op> <arg1> [<arg2>] <switch> <result>
7896 and produces "result" if the comparison evaluates to true,
7897 and nothing if it doesn't.
7899 The supported <comparison-op> values are:
7901 >= true if switch is a later (or same) version than arg1
7903 < true if switch is an earlier version than arg1
7905 >< true if switch is arg1 or later, and earlier than arg2
7906 <> true if switch is earlier than arg1 or is arg2 or later
7908 If the switch is not present, the condition is false unless
7909 the first character of the <comparison-op> is '!'.
7912 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
7913 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
7916 version_compare_spec_function (int argc
, const char **argv
)
7920 const char *switch_value
= NULL
;
7925 fatal_error ("too few arguments to %%:version-compare");
7926 if (argv
[0][0] == '\0')
7928 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
7930 if (argc
!= nargs
+ 3)
7931 fatal_error ("too many arguments to %%:version-compare");
7933 switch_len
= strlen (argv
[nargs
+ 1]);
7934 for (i
= 0; i
< n_switches
; i
++)
7935 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
7936 && check_live_switch (i
, switch_len
))
7937 switch_value
= switches
[i
].part1
+ switch_len
;
7939 if (switch_value
== NULL
)
7943 comp1
= compare_version_strings (switch_value
, argv
[1]);
7945 comp2
= compare_version_strings (switch_value
, argv
[2]);
7947 comp2
= -1; /* This value unused. */
7950 switch (argv
[0][0] << 8 | argv
[0][1])
7952 case '>' << 8 | '=':
7953 result
= comp1
>= 0;
7955 case '!' << 8 | '<':
7956 result
= comp1
>= 0 || switch_value
== NULL
;
7961 case '!' << 8 | '>':
7962 result
= comp1
< 0 || switch_value
== NULL
;
7964 case '>' << 8 | '<':
7965 result
= comp1
>= 0 && comp2
< 0;
7967 case '<' << 8 | '>':
7968 result
= comp1
< 0 || comp2
>= 0;
7972 fatal_error ("unknown operator %qs in %%:version-compare", argv
[0]);
7977 return argv
[nargs
+ 2];
7980 /* %:include builtin spec function. This differs from %include in that it
7981 can be nested inside a spec, and thus be conditionalized. It takes
7982 one argument, the filename, and looks for it in the startfile path.
7983 The result is always NULL, i.e. an empty expansion. */
7986 include_spec_function (int argc
, const char **argv
)
7993 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
7994 read_specs (file
? file
: argv
[0], FALSE
);
7999 /* %:find-file spec function. This function replaces its argument by
8000 the file found thru find_file, that is the -print-file-name gcc
8003 find_file_spec_function (int argc
, const char **argv
)
8010 file
= find_file (argv
[0]);
8015 /* %:find-plugindir spec function. This function replaces its argument
8016 by the -iplugindir=<dir> option. `dir' is found thru find_file, that
8017 is the -print-file-name gcc program option. */
8019 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
8026 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
8031 /* %:print-asm-header spec function. Print a banner to say that the
8032 following output is from the assembler. */
8035 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8036 const char **argv ATTRIBUTE_UNUSED
)
8038 printf (_("Assembler options\n=================\n\n"));
8039 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8044 /* Compute a timestamp to initialize flag_random_seed. */
8047 get_local_tick (void)
8051 /* Get some more or less random data. */
8052 #ifdef HAVE_GETTIMEOFDAY
8056 gettimeofday (&tv
, NULL
);
8057 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8061 time_t now
= time (NULL
);
8063 if (now
!= (time_t)-1)
8064 ret
= (unsigned) now
;
8071 /* %:compare-debug-dump-opt spec function. Save the last argument,
8072 expected to be the last -fdump-final-insns option, or generate a
8076 compare_debug_dump_opt_spec_function (int arg
,
8077 const char **argv ATTRIBUTE_UNUSED
)
8082 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8085 fatal_error ("too many arguments to %%:compare-debug-dump-opt");
8087 do_spec_2 ("%{fdump-final-insns=*:%*}");
8088 do_spec_1 (" ", 0, NULL
);
8090 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8095 name
= xstrdup (argv
[argbuf_index
- 1]);
8100 const char *ext
= NULL
;
8102 if (argbuf_index
> 0)
8104 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8107 else if (!compare_debug
)
8110 do_spec_2 ("%g.gkd");
8112 do_spec_1 (" ", 0, NULL
);
8114 gcc_assert (argbuf_index
> 0);
8116 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8118 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8121 which
= compare_debug
< 0;
8122 debug_check_temp_file
[which
] = name
;
8126 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8128 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8132 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8141 static const char *debug_auxbase_opt
;
8143 /* %:compare-debug-self-opt spec function. Expands to the options
8144 that are to be passed in the second compilation of
8148 compare_debug_self_opt_spec_function (int arg
,
8149 const char **argv ATTRIBUTE_UNUSED
)
8152 fatal_error ("too many arguments to %%:compare-debug-self-opt");
8154 if (compare_debug
>= 0)
8157 do_spec_2 ("%{c|S:%{o*:%*}}");
8158 do_spec_1 (" ", 0, NULL
);
8160 if (argbuf_index
> 0)
8161 debug_auxbase_opt
= concat ("-auxbase-strip ",
8162 argbuf
[argbuf_index
- 1],
8165 debug_auxbase_opt
= NULL
;
8168 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8169 %<fdump-final-insns=* -w -S -o %j \
8170 %{!fcompare-debug-second:-fcompare-debug-second} \
8171 ", compare_debug_opt
, NULL
);
8174 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8175 options that are to be passed in the second compilation of
8176 compare-debug. It expects, as an argument, the basename of the
8177 current input file name, with the .gk suffix appended to it. */
8180 compare_debug_auxbase_opt_spec_function (int arg
,
8187 fatal_error ("too few arguments to %%:compare-debug-auxbase-opt");
8190 fatal_error ("too many arguments to %%:compare-debug-auxbase-opt");
8192 if (compare_debug
>= 0)
8195 len
= strlen (argv
[0]);
8196 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8197 fatal_error ("argument to %%:compare-debug-auxbase-opt "
8198 "does not end in .gk");
8200 if (debug_auxbase_opt
)
8201 return debug_auxbase_opt
;
8203 #define OPT "-auxbase "
8206 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8207 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8208 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8209 name
[sizeof (OPT
) - 1 + len
] = '\0';