2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997-2015 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 3, or (at your option) any later
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING3. If not see
20 #<http://www.gnu.org/licenses/>.
22 # --------------------------------
23 # Initialization and sanity checks
24 # --------------------------------
28 AC_CONFIG_SRCDIR(tree.c)
29 AC_CONFIG_HEADER(auto-host.h:config.in)
31 gcc_version=`cat $srcdir/BASE-VER`
33 # Determine the host, build, and target systems
38 # Determine the noncanonical target name, for directory use.
39 ACX_NONCANONICAL_TARGET
41 # Used for constructing correct paths for offload compilers.
42 real_target_noncanonical=${target_noncanonical}
45 # Determine the target- and build-specific subdirectories
48 # Set program_transform_name
51 # Check for bogus environment variables.
52 # Test if LIBRARY_PATH contains the notation for the current directory
53 # since this would lead to problems installing/building glibc.
54 # LIBRARY_PATH contains the current directory if one of the following
56 # - one of the terminals (":" and ";") is the first or last sign
57 # - two terminals occur directly after each other
58 # - the path contains an element with a dot in it
59 AC_MSG_CHECKING(LIBRARY_PATH variable)
61 case ${LIBRARY_PATH} in
62 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
63 library_path_setting="contains current directory"
66 library_path_setting="ok"
70 AC_MSG_RESULT($library_path_setting)
71 if test "$library_path_setting" != "ok"; then
73 *** LIBRARY_PATH shouldn't contain the current directory when
74 *** building gcc. Please change the environment variable
75 *** and run configure again.])
78 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
79 # since this would lead to problems installing/building glibc.
80 # GCC_EXEC_PREFIX contains the current directory if one of the following
82 # - one of the terminals (":" and ";") is the first or last sign
83 # - two terminals occur directly after each other
84 # - the path contains an element with a dot in it
85 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
87 case ${GCC_EXEC_PREFIX} in
88 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
89 gcc_exec_prefix_setting="contains current directory"
92 gcc_exec_prefix_setting="ok"
96 AC_MSG_RESULT($gcc_exec_prefix_setting)
97 if test "$gcc_exec_prefix_setting" != "ok"; then
99 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
100 *** building gcc. Please change the environment variable
101 *** and run configure again.])
108 # Specify the local prefix
110 AC_ARG_WITH(local-prefix,
111 [AS_HELP_STRING([--with-local-prefix=DIR],
112 [specifies directory to put local include])],
113 [case "${withval}" in
114 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
116 *) local_prefix=$with_local_prefix ;;
119 # Default local prefix if it is empty
120 if test x$local_prefix = x; then
121 local_prefix=/usr/local
124 AC_ARG_WITH([native-system-header-dir],
125 [ --with-native-system-header-dir=dir
126 use dir as the directory to look for standard
127 system header files in. Defaults to /usr/include.],
129 case ${with_native_system_header_dir} in
130 yes|no) AC_MSG_ERROR([bad value ${withval} given for --with-native-system-header-dir]) ;;
131 /* | [[A-Za-z]]:[[\\/]]*) ;;
132 *) AC_MSG_ERROR([--with-native-system-header-dir argument ${withval} must be an absolute directory]) ;;
134 configured_native_system_header_dir="${withval}"
135 ], [configured_native_system_header_dir=])
137 AC_ARG_WITH(build-sysroot,
138 [AS_HELP_STRING([--with-build-sysroot=sysroot],
139 [use sysroot as the system root during the build])],
140 [if test x"$withval" != x ; then
141 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
143 [SYSROOT_CFLAGS_FOR_TARGET=])
144 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
146 if test "x$prefix" = xNONE; then
147 test_prefix=/usr/local
151 if test "x$exec_prefix" = xNONE; then
152 test_exec_prefix=$test_prefix
154 test_exec_prefix=$exec_prefix
158 [AS_HELP_STRING([[--with-sysroot[=DIR]]],
159 [search for usr/lib, usr/include, et al, within DIR])],
161 case ${with_sysroot} in
163 */) with_sysroot=`echo $with_sysroot | sed 's,/$,,'` ;;
165 case ${with_sysroot} in
166 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
167 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
170 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
171 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
173 case ${TARGET_SYSTEM_ROOT} in
174 "${test_prefix}"|"${test_prefix}/"*|\
175 "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
176 '${prefix}'|'${prefix}/'*|\
177 '${exec_prefix}'|'${exec_prefix}/'*)
178 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
179 TARGET_SYSTEM_ROOT_DEFINE="$t"
184 TARGET_SYSTEM_ROOT_DEFINE=
185 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
187 AC_SUBST(TARGET_SYSTEM_ROOT)
188 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
189 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
191 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
192 # passed in by the toplevel make and thus we'd get different behavior
193 # depending on where we built the sources.
195 # Specify the g++ header file directory
196 AC_ARG_WITH(gxx-include-dir,
197 [AS_HELP_STRING([--with-gxx-include-dir=DIR],
198 [specifies directory to put g++ header files])],
199 [case "${withval}" in
200 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
202 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
205 # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
206 if test x${gcc_gxx_include_dir} = x; then
207 if test x${enable_version_specific_runtime_libs} = xyes; then
208 gcc_gxx_include_dir='${libsubdir}/include/c++'
210 libstdcxx_incdir='include/c++/$(version)'
211 if test x$host != x$target; then
212 libstdcxx_incdir="$target_alias/$libstdcxx_incdir"
214 gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
218 gcc_gxx_include_dir_add_sysroot=0
219 if test "${with_sysroot+set}" = set; then
220 gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
221 if test "${gcc_gxx_without_sysroot}"; then
222 if test x${with_sysroot} != x/; then
223 gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
225 gcc_gxx_include_dir_add_sysroot=1
229 AC_ARG_WITH(cpp_install_dir,
230 [AC_HELP_STRING([--with-cpp-install-dir=DIR],
231 [install the user visible C preprocessor in DIR
232 (relative to PREFIX) as well as PREFIX/bin])],
233 [if test x$withval = xyes; then
234 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
235 elif test x$withval != xno; then
236 cpp_install_dir=$withval
239 # We would like to our source tree to be readonly. However when releases or
240 # pre-releases are generated, the flex/bison generated files as well as the
241 # various formats of manuals need to be included along with the rest of the
242 # sources. Therefore we have --enable-generated-files-in-srcdir to do
245 AC_MSG_CHECKING([whether to place generated files in the source directory])
246 dnl generated-files-in-srcdir is disabled by default
247 AC_ARG_ENABLE(generated-files-in-srcdir,
248 [AS_HELP_STRING([--enable-generated-files-in-srcdir],
249 [put copies of generated files in source dir
250 intended for creating source tarballs for users
251 without texinfo bison or flex])],
252 generated_files_in_srcdir=$enableval,
253 generated_files_in_srcdir=no)
255 AC_MSG_RESULT($generated_files_in_srcdir)
257 if test "$generated_files_in_srcdir" = "yes"; then
264 # -------------------
265 # Find default linker
266 # -------------------
270 [AS_HELP_STRING([--with-gnu-ld], [arrange to work with GNU ld])],
271 gnu_ld_flag="$with_gnu_ld",
274 # With pre-defined ld
276 [AS_HELP_STRING([--with-ld], [arrange to use the specified ld (full pathname)])],
277 DEFAULT_LINKER="$with_ld")
278 if test x"${DEFAULT_LINKER+set}" = x"set"; then
279 if test ! -x "$DEFAULT_LINKER"; then
280 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
281 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
284 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
285 [Define to enable the use of a default linker.])
288 AC_MSG_CHECKING([whether a default linker was specified])
289 if test x"${DEFAULT_LINKER+set}" = x"set"; then
290 if test x"$gnu_ld_flag" = x"no"; then
291 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
293 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
299 # With demangler in GNU ld
300 AC_ARG_WITH(demangler-in-ld,
301 [AS_HELP_STRING([--with-demangler-in-ld], [try to use demangler in GNU ld])],
302 demangler_in_ld="$with_demangler_in_ld",
305 # ----------------------
306 # Find default assembler
307 # ----------------------
311 [AS_HELP_STRING([--with-gnu-as], [arrange to work with GNU as])],
312 gas_flag="$with_gnu_as",
316 [AS_HELP_STRING([--with-as], [arrange to use the specified as (full pathname)])],
317 DEFAULT_ASSEMBLER="$with_as")
318 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
319 if test ! -x "$DEFAULT_ASSEMBLER"; then
320 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
321 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
324 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
325 [Define to enable the use of a default assembler.])
328 AC_MSG_CHECKING([whether a default assembler was specified])
329 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
330 if test x"$gas_flag" = x"no"; then
331 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
333 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
343 # If a non-executable a.out is present (e.g. created by GNU as above even if
344 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
345 # file, even when creating an executable, so an execution test fails.
346 # Remove possible default executable files to avoid this.
348 # FIXME: This really belongs into AC_PROG_CC and can be removed once
349 # Autoconf includes it.
350 rm -f a.out a.exe b.out
352 # Find the native compiler
355 ACX_PROG_GNAT([-I"$srcdir"/ada])
357 # Do configure tests with the C++ compiler, since that's what we build with.
360 # Remove the -O2: for historical reasons, unless bootstrapping we prefer
361 # optimizations to be activated explicitly by the toplevel.
364 *) CFLAGS=`echo "$CFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" `
365 CXXFLAGS=`echo "$CXXFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" ` ;;
370 # Determine PICFLAG for target gnatlib.
371 GCC_PICFLAG_FOR_TARGET
372 AC_SUBST(PICFLAG_FOR_TARGET)
374 # -------------------------
375 # Check C compiler features
376 # -------------------------
378 AC_USE_SYSTEM_EXTENSIONS
384 # sizeof(char) is 1 by definition.
385 AC_CHECK_SIZEOF(void *)
386 AC_CHECK_SIZEOF(short)
388 AC_CHECK_SIZEOF(long)
389 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
391 if test x"$ac_cv_c_uint64_t" = x"no" -o x"$ac_cv_c_int64_t" = x"no"; then
392 AC_MSG_ERROR([uint64_t or int64_t not found])
395 # check what underlying integer type int64_t uses
396 AC_CACHE_CHECK(for int64_t underlying type, ac_cv_int64_t_type, [
397 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
401 template <typename T> struct X { };
403 struct X<long> { typedef long t; };
404 ]], [[X<int64_t>::t x;]])],[ac_cv_int64_t_type=long],[ac_cv_int64_t_type="long long"])])
405 if test "$ac_cv_int64_t_type" = "long"; then
406 AC_DEFINE(INT64_T_IS_LONG, 1,
407 [Define if int64_t uses long as underlying type.])
409 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
413 template <typename T> struct X { };
415 struct X<long long> { typedef long long t; };
416 ]], [[X<int64_t>::t x;]])],[],[AC_MSG_ERROR([error verifying int64_t uses long long])])
419 # Check whether compiler is affected by placement new aliasing bug (PR 29286).
420 # If the host compiler is affected by the bug, and we build with optimization
421 # enabled (which happens e.g. when cross-compiling), the pool allocator may
422 # get miscompiled. Use -fno-strict-aliasing to work around this problem.
423 # Since there is no reliable feature check for the presence of this bug,
424 # we simply use a GCC version number check. (This should never trigger for
425 # stages 2 or 3 of a native bootstrap.)
427 if test "$GCC" = yes; then
428 saved_CXXFLAGS="$CXXFLAGS"
430 # The following test compilation will succeed if and only if $CXX accepts
431 # -fno-strict-aliasing *and* is older than GCC 4.3.
432 CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
433 AC_MSG_CHECKING([whether $CXX is affected by placement new aliasing bug])
435 #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
436 #error compiler not affected by placement new aliasing bug
439 [AC_MSG_RESULT([yes]); aliasing_flags='-fno-strict-aliasing'],
440 [AC_MSG_RESULT([no])])
442 CXXFLAGS="$saved_CXXFLAGS"
444 AC_SUBST(aliasing_flags)
448 # ---------------------
449 # Warnings and checking
450 # ---------------------
452 # Check $CC warning features (if it's GCC).
453 # We want to use -pedantic, but we don't want warnings about
457 # * C++11 narrowing conversions in { }
458 # So, we only use -pedantic if we can disable those warnings.
460 # In stage 1, disable -Wformat warnings from old GCCs about new % codes
461 AC_ARG_ENABLE(build-format-warnings,
462 AS_HELP_STRING([--disable-build-format-warnings],[don't use -Wformat while building GCC]),
463 [],[enable_build_format_warnings=yes])
464 AS_IF([test $enable_build_format_warnings = no],
465 [wf_opt=-Wno-format],[wf_opt=])
466 ACX_PROG_CXX_WARNING_OPTS(
467 m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt])), [loose_warn])
468 ACX_PROG_CC_WARNING_OPTS(
469 m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
471 ACX_PROG_CXX_WARNING_OPTS(
472 m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn])
473 ACX_PROG_CXX_WARNING_OPTS(
474 m4_quote(m4_do([-Woverloaded-virtual])), [strict_warn])
475 ACX_PROG_CC_WARNING_OPTS(
476 m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn])
477 ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC(
478 m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ],
479 [-Wno-overlength-strings])), [strict_warn])
480 ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn])
482 # The above macros do nothing if the compiler is not GCC. However, the
483 # Makefile has more goo to add other flags, so these variables are used
484 # to enable warnings only for GCC.
487 if test "x$GCC" = "xyes"; then
488 warn_cflags='$(GCC_WARN_CFLAGS)'
489 warn_cxxflags='$(GCC_WARN_CXXFLAGS)'
491 AC_SUBST(warn_cflags)
492 AC_SUBST(warn_cxxflags)
494 # Disable exceptions and RTTI if building with g++
495 ACX_PROG_CC_WARNING_OPTS(
496 m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])),
499 # Enable expensive internal checks
501 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
505 AC_ARG_ENABLE(checking,
506 [AS_HELP_STRING([[--enable-checking[=LIST]]],
507 [enable expensive run-time checks. With LIST,
508 enable only specific categories of checks.
509 Categories are: yes,no,all,none,release.
510 Flags are: assert,df,fold,gc,gcac,gimple,misc,
511 rtlflag,rtl,runtime,tree,valgrind,types])],
512 [ac_checking_flags="${enableval}"],[
513 # Determine the default checks.
514 if test x$is_release = x ; then
515 ac_checking_flags=yes
517 ac_checking_flags=release
519 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
520 for check in release $ac_checking_flags
523 # these set all the flags to specific states
524 yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ;
525 ac_fold_checking= ; ac_gc_checking=1 ;
526 ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ;
527 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
528 ac_tree_checking=1 ; ac_valgrind_checking= ;
529 ac_types_checking=1 ;;
530 no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ;
531 ac_fold_checking= ; ac_gc_checking= ;
532 ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
533 ac_rtlflag_checking= ; ac_runtime_checking= ;
534 ac_tree_checking= ; ac_valgrind_checking= ;
535 ac_types_checking= ;;
536 all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ;
537 ac_fold_checking=1 ; ac_gc_checking=1 ;
538 ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ;
539 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
540 ac_tree_checking=1 ; ac_valgrind_checking= ;
541 ac_types_checking=1 ;;
542 release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ;
543 ac_fold_checking= ; ac_gc_checking= ;
544 ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
545 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
546 ac_tree_checking= ; ac_valgrind_checking= ;
547 ac_types_checking= ;;
548 # these enable particular checks
549 assert) ac_assert_checking=1 ;;
550 df) ac_df_checking=1 ;;
551 fold) ac_fold_checking=1 ;;
552 gc) ac_gc_checking=1 ;;
553 gcac) ac_gc_always_collect=1 ;;
554 gimple) ac_gimple_checking=1 ;;
555 misc) ac_checking=1 ;;
556 rtl) ac_rtl_checking=1 ;;
557 rtlflag) ac_rtlflag_checking=1 ;;
558 runtime) ac_runtime_checking=1 ;;
559 tree) ac_tree_checking=1 ;;
560 types) ac_types_checking=1 ;;
561 valgrind) ac_valgrind_checking=1 ;;
562 *) AC_MSG_ERROR(unknown check category $check) ;;
568 if test x$ac_checking != x ; then
569 AC_DEFINE(CHECKING_P, 1,
570 [Define to 1 if you want more run-time sanity checks. This one gets a grab
571 bag of miscellaneous but relatively cheap checks.])
572 nocommon_flag=-fno-common
574 AC_DEFINE(CHECKING_P, 0)
576 AC_SUBST(nocommon_flag)
577 if test x$ac_df_checking != x ; then
578 AC_DEFINE(ENABLE_DF_CHECKING, 1,
579 [Define if you want more run-time sanity checks for dataflow.])
581 if test x$ac_assert_checking != x ; then
582 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
583 [Define if you want assertions enabled. This is a cheap check.])
585 if test x$ac_gimple_checking != x ; then
586 AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1,
587 [Define if you want operations on GIMPLE (the basic data structure of
588 the high-level optimizers) to be checked for dynamic type safety at
589 runtime. This is moderately expensive.])
591 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
592 if test x$ac_runtime_checking != x ; then
593 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
594 [Define if you want runtime assertions enabled. This is a cheap check.])
596 if test x$ac_tree_checking != x ; then
597 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
598 [Define if you want all operations on trees (the basic data
599 structure of the front ends) to be checked for dynamic type safety
600 at runtime. This is moderately expensive.
604 if test x$ac_types_checking != x ; then
605 AC_DEFINE(ENABLE_TYPES_CHECKING, 1,
606 [Define if you want all gimple types to be verified after gimplifiation.
610 AC_SUBST(TREECHECKING)
611 if test x$ac_rtl_checking != x ; then
612 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
613 [Define if you want all operations on RTL (the basic data structure
614 of the optimizer and back end) to be checked for dynamic type safety
615 at runtime. This is quite expensive.])
617 if test x$ac_rtlflag_checking != x ; then
618 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
619 [Define if you want RTL flag accesses to be checked against the RTL
620 codes that are supported for each access macro. This is relatively
623 if test x$ac_gc_checking != x ; then
624 AC_DEFINE(ENABLE_GC_CHECKING, 1,
625 [Define if you want the garbage collector to do object poisoning and
626 other memory allocation checks. This is quite expensive.])
628 if test x$ac_gc_always_collect != x ; then
629 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
630 [Define if you want the garbage collector to operate in maximally
631 paranoid mode, validating the entire heap and collecting garbage at
632 every opportunity. This is extremely expensive.])
634 if test x$ac_fold_checking != x ; then
635 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
636 [Define if you want fold checked that it never destructs its argument.
637 This is quite expensive.])
639 valgrind_path_defines=
642 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
643 dnl # an if statement. This was the source of very frustrating bugs
644 dnl # in converting to autoconf 2.5x!
645 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
647 # It is certainly possible that there's valgrind but no valgrind.h.
648 # GCC relies on making annotations so we must have both.
649 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
650 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
651 [[#include <valgrind/memcheck.h>
652 #ifndef VALGRIND_DISCARD
653 #error VALGRIND_DISCARD not defined
655 [gcc_cv_header_valgrind_memcheck_h=yes],
656 [gcc_cv_header_valgrind_memcheck_h=no])
657 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
658 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
659 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
660 [[#include <memcheck.h>
661 #ifndef VALGRIND_DISCARD
662 #error VALGRIND_DISCARD not defined
664 [gcc_cv_header_memcheck_h=yes],
665 [gcc_cv_header_memcheck_h=no])
666 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
667 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
668 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
669 [Define if valgrind's valgrind/memcheck.h header is installed.])
671 if test $gcc_cv_header_memcheck_h = yes; then
672 AC_DEFINE(HAVE_MEMCHECK_H, 1,
673 [Define if valgrind's memcheck.h header is installed.])
676 if test x$ac_valgrind_checking != x ; then
677 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
678 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
679 if test "x$valgrind_path" = "x" \
680 || (test $have_valgrind_h = no \
681 && test $gcc_cv_header_memcheck_h = no \
682 && test $gcc_cv_header_valgrind_memcheck_h = no); then
683 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
685 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
686 valgrind_command="$valgrind_path -q"
687 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
688 [Define if you want to run subprograms and generated programs
689 through valgrind (a memory checker). This is extremely expensive.])
691 AC_SUBST(valgrind_path_defines)
692 AC_SUBST(valgrind_command)
694 # Enable code coverage collection
695 AC_ARG_ENABLE(coverage,
696 [AS_HELP_STRING([[--enable-coverage[=LEVEL]]],
697 [enable compiler's code coverage collection.
698 Use to measure compiler performance and locate
699 unused parts of the compiler. With LEVEL, specify
700 optimization. Values are opt, noopt,
702 [case "${enableval}" in
704 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
707 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
710 # a.k.a. --disable-coverage
714 AC_MSG_ERROR(unknown coverage setting $enableval)
718 AC_SUBST(coverage_flags)
720 AC_ARG_ENABLE(gather-detailed-mem-stats,
721 [AS_HELP_STRING([--enable-gather-detailed-mem-stats],
722 [enable detailed memory allocation stats gathering])], [],
723 [enable_gather_detailed_mem_stats=no])
724 gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi`
725 AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats,
726 [Define to enable detailed memory allocation stats gathering.])
728 AC_ARG_ENABLE(valgrind-annotations,
729 [AS_HELP_STRING([--enable-valgrind-annotations],
730 [enable valgrind runtime interaction])], [],
731 [enable_valgrind_annotations=no])
732 if test x$enable_valgrind_annotations != xno \
733 || test x$ac_valgrind_checking != x; then
734 if (test $have_valgrind_h = no \
735 && test $gcc_cv_header_memcheck_h = no \
736 && test $gcc_cv_header_valgrind_memcheck_h = no); then
737 AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h])
739 AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1,
740 [Define to get calls to the valgrind runtime enabled.])
743 # -------------------------------
744 # Miscenalleous configure options
745 # -------------------------------
749 [AS_HELP_STRING([--with-stabs],
750 [arrange to use stabs instead of host debug format])],
754 # Determine whether or not multilibs are enabled.
755 AC_ARG_ENABLE(multilib,
756 [AS_HELP_STRING([--enable-multilib],
757 [enable library support for multiple ABIs])],
758 [], [enable_multilib=yes])
759 AC_SUBST(enable_multilib)
761 # Determine whether or not multiarch is enabled.
762 AC_ARG_ENABLE(multiarch,
763 [AS_HELP_STRING([--enable-multiarch],
764 [enable support for multiarch paths])],
765 [case "${enableval}" in
766 yes|no|auto) enable_multiarch=$enableval;;
767 *) AC_MSG_ERROR(bad value ${enableval} given for --enable-multiarch option) ;;
768 esac], [enable_multiarch=auto])
769 if test x${enable_multiarch} = xauto; then
770 if test x${with_native_system_header_dir} != x; then
771 ma_msg_suffix=", disabled auto check (configured with --native-system-header-dir)"
774 if test x$host != x$target && test "x$with_sysroot" = x; then
775 ma_msg_suffix=", disabled auto check (cross build configured without --with-sysroot)"
779 AC_MSG_CHECKING(for multiarch configuration)
780 AC_SUBST(enable_multiarch)
781 AC_MSG_RESULT($enable_multiarch$ma_msg_suffix)
783 # needed for setting the multiarch name for soft-float/hard-float ABIs
787 # Enable __cxa_atexit for C++.
788 AC_ARG_ENABLE(__cxa_atexit,
789 [AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])],
792 # Enable C extension for decimal float if target supports it.
793 GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
795 dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi`
796 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
797 [Define to 1 to enable decimal float extension to C.])
799 # Use default_decimal_float for dependency.
800 enable_decimal_float=$default_decimal_float
802 bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
803 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
804 [Define to 1 to specify that we are using the BID decimal floating
805 point format instead of DPD])
807 # Enable C extension for fixed-point arithmetic.
808 AC_ARG_ENABLE(fixed-point,
809 [AS_HELP_STRING([--enable-fixed-point],
810 [enable fixed-point arithmetic extension to C])],
815 enable_fixed_point=yes
819 enable_fixed_point=yes
822 AC_MSG_WARN([fixed-point is not supported for this target, ignored])
823 enable_fixed_point=no
827 AC_SUBST(enable_fixed_point)
829 fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi`
830 AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint,
831 [Define to 1 to enable fixed-point arithmetic extension to C.])
834 # Pass with no value to take the default
835 # Pass with a value to specify a thread package
836 AC_ARG_ENABLE(threads,
837 [AS_HELP_STRING([[--enable-threads[=LIB]]],
838 [enable thread usage for target GCC,
839 using LIB thread package])],,
843 [AS_HELP_STRING([--enable-tls],
844 [enable or disable generation of tls code
845 overriding the assembler check for tls support])],
849 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
850 Valid choices are 'yes' and 'no'.]) ;;
854 AC_ARG_ENABLE(objc-gc,
855 [AS_HELP_STRING([--enable-objc-gc],
856 [enable the use of Boehm's garbage collector with
857 the GNU Objective-C runtime])],
858 if test x$enable_objc_gc = xno; then
866 [AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])],
867 dwarf2="$with_dwarf2",
870 AC_ARG_ENABLE(shared,
871 [AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])],
873 case $enable_shared in
877 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
878 for pkg in $enableval; do
879 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
886 ], [enable_shared=yes])
887 AC_SUBST(enable_shared)
890 [AS_HELP_STRING([--with-specs=SPECS],
891 [add SPECS to driver command-line processing])],
892 [CONFIGURE_SPECS=$withval],
895 AC_SUBST(CONFIGURE_SPECS)
897 ACX_PKGVERSION([GCC])
898 ACX_BUGURL([http://gcc.gnu.org/bugs.html])
900 # Sanity check enable_languages in case someone does not run the toplevel
901 # configure # script.
902 AC_ARG_ENABLE(languages,
903 [AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])],
904 [case ,${enable_languages}, in
906 # go safe -- we cannot be much sure without the toplevel
908 # analysis of which target libs are present and usable
912 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
917 enable_languages=c,${enable_languages}
920 [enable_languages=c])
922 if test x"$enable_as_accelerator_for" != x; then
923 AC_DEFINE(ACCEL_COMPILER, 1,
924 [Define if this compiler should be built as the offload target compiler.])
925 enable_as_accelerator=yes
928 # In this case we expect offload compiler to be built as native, so we
929 # need to rename the driver to avoid clashes with host's drivers.
930 program_transform_name="s&^&${target}-&" ;;
932 sedscript="s#${target_noncanonical}#${enable_as_accelerator_for}-accel-${target_noncanonical}#"
933 program_transform_name=`echo $program_transform_name | sed $sedscript`
934 accel_dir_suffix=/accel/${target_noncanonical}
935 real_target_noncanonical=${enable_as_accelerator_for}
937 AC_SUBST(enable_as_accelerator)
938 AC_SUBST(real_target_noncanonical)
939 AC_SUBST(accel_dir_suffix)
941 for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do
942 tgt=`echo $tgt | sed 's/=.*//'`
943 if test x"$offload_targets" = x; then
946 offload_targets="$offload_targets,$tgt"
949 AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets",
950 [Define to offload targets, separated by commas.])
951 if test x"$offload_targets" != x; then
952 AC_DEFINE(ENABLE_OFFLOADING, 1,
953 [Define this to enable support for offloading.])
955 AC_DEFINE(ENABLE_OFFLOADING, 0,
956 [Define this to enable support for offloading.])
959 AC_ARG_WITH(multilib-list,
960 [AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, SH and x86-64 only)])],
962 with_multilib_list=default)
964 # -------------------------
965 # Checks for other programs
966 # -------------------------
970 # Find some useful tools
972 # We need awk to create options.c and options.h.
973 # Bail out if it's missing.
975 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
982 AC_SUBST(ranlib_flags)
986 # See if cmp has --ignore-initial.
987 gcc_AC_PROG_CMP_IGNORE_INITIAL
989 # See if we have the mktemp command.
990 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
992 # See if makeinfo has been installed and is modern enough
993 # that we can use it.
994 ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
995 [GNU texinfo.* \([0-9][0-9.]*\)],
996 [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
997 if test $gcc_cv_prog_makeinfo_modern = no; then
999 *** Makeinfo is missing or too old.
1000 *** Info documentation will not be built.])
1005 AC_SUBST(BUILD_INFO)
1007 # Is pod2man recent enough to regenerate manpages?
1008 AC_MSG_CHECKING([for recent Pod::Man])
1009 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
1011 GENERATED_MANPAGES=generated-manpages
1016 AC_SUBST(GENERATED_MANPAGES)
1018 MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing"
1021 dnl Don't use AC_PROG_LEX; we insist on flex.
1022 dnl LEXLIB is not useful in gcc.
1023 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
1026 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
1028 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
1029 # check for build == host before using them.
1032 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
1033 && test -d ../binutils ; then
1034 NM='${objdir}/../binutils/nm-new'
1036 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
1040 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
1041 && test -d ../binutils ; then
1042 AR='${objdir}/../binutils/ar'
1044 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
1047 # The jit documentation looks better if built with sphinx, but can be
1048 # built with texinfo if sphinx is not available.
1049 # Set "doc_build_sys" to "sphinx" or "texinfo" accordingly.
1050 AC_CHECK_PROG(doc_build_sys, sphinx-build, sphinx, texinfo)
1052 # --------------------
1053 # Checks for C headers
1054 # --------------------
1056 # Need to reject headers which give warnings, so that the -Werror bootstrap
1057 # works later. *sigh* This needs to come before all header checks.
1064 AC_HEADER_TIOCGWINSZ
1065 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
1066 fcntl.h ftw.h unistd.h sys/file.h sys/time.h sys/mman.h \
1067 sys/resource.h sys/param.h sys/times.h sys/stat.h \
1068 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
1070 # Check for thread headers.
1071 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
1072 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
1074 # These tests can't be done till we know if we have limits.h.
1078 # ----------------------
1079 # Checks for C++ headers
1080 # ----------------------
1082 dnl Autoconf will give an error in the configure script if there is no
1083 dnl C++ preprocessor. Hack to prevent that.
1084 m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl
1086 m4_popdef([AC_MSG_ERROR])[]dnl
1088 AC_CHECK_HEADERS(unordered_map)
1089 AC_CHECK_HEADERS(tr1/unordered_map)
1090 AC_CHECK_HEADERS(ext/hash_map)
1093 # Dependency checking.
1097 AC_CONFIG_COMMANDS([gccdepdir],[
1098 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR
1099 for lang in $subdirs c-family common
1101 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR
1102 done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR])
1104 ZW_PROG_COMPILER_DEPENDENCIES([CXX])
1111 # These libraries may be used by collect2.
1112 # We may need a special search path to get them linked.
1113 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
1115 for libs in '' -lld -lmld \
1116 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
1117 '-L/usr/lib/cmplrs/cc3.11 -lmld'
1120 AC_TRY_LINK_FUNC(ldopen,
1121 [gcc_cv_collect2_libs="$libs"; break])
1124 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
1125 case $gcc_cv_collect2_libs in
1127 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
1129 AC_SUBST(COLLECT2_LIBS)
1131 # When building Ada code on Alpha, we need exc_resume which is usually in
1132 # -lexc. So test for it.
1135 AC_SEARCH_LIBS(exc_resume, exc)
1138 AC_SUBST(GNAT_LIBEXC)
1140 # To support -mcpu=native on Solaris/SPARC, we need libkstat.
1143 AC_SEARCH_LIBS(kstat_open, kstat)
1144 EXTRA_GCC_LIBS="$LIBS"
1146 AC_SUBST(EXTRA_GCC_LIBS)
1148 # Some systems put ldexp and frexp in libm instead of libc; assume
1149 # they're both in the same place. jcf-dump needs them.
1152 AC_SEARCH_LIBS(ldexp, m)
1157 # Use <inttypes.h> only if it exists,
1158 # doesn't clash with <sys/types.h>, declares intmax_t and defines
1160 AC_MSG_CHECKING(for inttypes.h)
1161 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1162 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1163 [[#define __STDC_FORMAT_MACROS
1164 #include <sys/types.h>
1165 #include <inttypes.h>]],
1170 [gcc_cv_header_inttypes_h=yes],
1171 [gcc_cv_header_inttypes_h=no])])
1172 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1173 if test $gcc_cv_header_inttypes_h = yes; then
1174 AC_DEFINE(HAVE_INTTYPES_H, 1,
1175 [Define if you have a working <inttypes.h> header file.])
1178 dnl Disabled until we have a complete test for buggy enum bitfields.
1179 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1181 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1182 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1183 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1184 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1185 putchar_unlocked putc_unlocked)
1186 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \
1187 popen sysconf strsignal getrusage nl_langinfo \
1188 gettimeofday mbstowcs wcswidth mmap setlocale \
1189 gcc_UNLOCKED_FUNCS madvise)
1191 if test x$ac_cv_func_mbstowcs = xyes; then
1192 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1193 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1199 [gcc_cv_func_mbstowcs_works=yes],
1200 [gcc_cv_func_mbstowcs_works=no],
1201 [gcc_cv_func_mbstowcs_works=yes])])
1202 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1203 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1204 [Define this macro if mbstowcs does not crash when its
1205 first argument is NULL.])
1209 AC_CHECK_TYPE(ssize_t, int)
1210 AC_CHECK_TYPE(caddr_t, char *)
1212 GCC_AC_FUNC_MMAP_BLACKLIST
1216 # Under VMS, vfork works very differently than on Unix. The standard test
1217 # won't work, and it isn't easily adaptable. It makes more sense to
1219 ac_cv_func_vfork_works=yes
1226 # Until we have in-tree GNU iconv:
1228 if test -f "$LTLIBICONV"; then
1229 LIBICONV_DEP=$LTLIBICONV
1231 AC_SUBST(LIBICONV_DEP)
1237 # We will need to find libiberty.h and ansidecl.h
1238 saved_CFLAGS="$CFLAGS"
1239 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
1240 saved_CXXFLAGS="$CXXFLAGS"
1241 CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
1243 # gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the
1244 # normal autoconf function for these. But force definition of
1245 # HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre
1246 # basename handling in libiberty.h.
1247 AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[
1248 #undef HAVE_DECL_BASENAME
1249 #define HAVE_DECL_BASENAME 1
1250 #include "ansidecl.h"
1251 #include "system.h"])
1253 gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \
1254 madvise stpcpy strnlen strsignal strverscmp \
1255 strtol strtoul strtoll strtoull setenv unsetenv \
1256 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1257 free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[
1258 #include "ansidecl.h"
1259 #include "system.h"])
1261 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1262 #include "ansidecl.h"
1264 #ifdef HAVE_SYS_RESOURCE_H
1265 #include <sys/resource.h>
1269 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1270 #include "ansidecl.h"
1272 #ifdef HAVE_SYS_RESOURCE_H
1273 #include <sys/resource.h>
1275 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1276 [Define to `long' if <sys/resource.h> doesn't define.])])
1278 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1279 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1280 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1281 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1282 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1283 #include "ansidecl.h"
1292 gcc_AC_CHECK_DECLS(times, , ,[
1293 #include "ansidecl.h"
1295 #ifdef HAVE_SYS_TIMES_H
1296 #include <sys/times.h>
1300 gcc_AC_CHECK_DECLS(sigaltstack, , ,[
1301 #include "ansidecl.h"
1306 # More time-related stuff.
1307 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1308 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1309 #include "ansidecl.h"
1311 #ifdef HAVE_SYS_TIMES_H
1312 #include <sys/times.h>
1314 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1315 if test $ac_cv_struct_tms = yes; then
1316 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1317 [Define if <sys/times.h> defines struct tms.])
1320 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1321 # revisit after autoconf 2.50.
1322 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1323 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1324 #include "ansidecl.h"
1326 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1327 if test $gcc_cv_type_clock_t = yes; then
1328 AC_DEFINE(HAVE_CLOCK_T, 1,
1329 [Define if <time.h> defines clock_t.])
1332 # Check if F_SETLKW is supported by fcntl.
1333 AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [
1334 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1335 #include <fcntl.h>]], [[
1341 return fcntl (1, F_SETLKW, &fl);]])],
1342 [ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])])
1343 if test $ac_cv_f_setlkw = yes; then
1344 AC_DEFINE(HOST_HAS_F_SETLKW, 1,
1345 [Define if F_SETLKW supported by fcntl.])
1348 # Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1349 CFLAGS="$saved_CFLAGS"
1350 CXXFLAGS="$saved_CXXFLAGS"
1352 # mkdir takes a single argument on some systems.
1353 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1361 # With Setjmp/Longjmp based exception handling.
1362 AC_ARG_ENABLE(sjlj-exceptions,
1363 [AS_HELP_STRING([--enable-sjlj-exceptions],
1364 [arrange to use setjmp/longjmp exception handling])],
1367 if test $enableval != yes; then
1368 AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced])
1373 force_sjlj_exceptions=yes],
1376 force_sjlj_exceptions=yes
1380 force_sjlj_exceptions=yes
1384 force_sjlj_exceptions=no
1387 if test $force_sjlj_exceptions = yes; then
1388 sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1389 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1390 [Define 0/1 to force the choice for exception handling model.])
1393 # --------------------------------------------------------
1394 # Build, host, and target specific configuration fragments
1395 # --------------------------------------------------------
1397 # Collect build-machine-specific information.
1398 . ${srcdir}/config.build
1400 # Collect host-machine-specific information.
1401 . ${srcdir}/config.host
1405 # Collect target-machine-specific information.
1406 . ${srcdir}/config.gcc
1408 extra_objs="${host_extra_objs} ${extra_objs}"
1409 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1411 # Default the target-machine variables that were not explicitly set.
1412 if test x"$tm_file" = x
1413 then tm_file=$cpu_type/$cpu_type.h; fi
1415 if test x"$extra_headers" = x
1416 then extra_headers=; fi
1418 if test x$md_file = x
1419 then md_file=$cpu_type/$cpu_type.md; fi
1421 if test x$out_file = x
1422 then out_file=$cpu_type/$cpu_type.c; fi
1424 if test x"$tmake_file" = x
1425 then tmake_file=$cpu_type/t-$cpu_type
1428 # Support --enable-initfini-array.
1429 if test x$enable_initfini_array != xno; then
1430 tm_file="${tm_file} initfini-array.h"
1433 if test x"$dwarf2" = xyes
1434 then tm_file="$tm_file tm-dwarf2.h"
1437 # Say what files are being used for the output code and MD file.
1438 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1439 echo "Using \`$srcdir/config/$md_file' as machine description file."
1441 # If any of the xm_file variables contain nonexistent files, warn
1442 # about them and drop them.
1445 for x in $build_xm_file; do
1446 if test -f $srcdir/config/$x
1448 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1454 for x in $host_xm_file; do
1455 if test -f $srcdir/config/$x
1457 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1463 for x in $xm_file; do
1464 if test -f $srcdir/config/$x
1466 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1472 for f in $tm_file; do
1475 if test $count = ax; then
1476 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1478 echo "Using the following target machine macro files:"
1479 for f in $tm_file; do
1480 echo " $srcdir/config/$f"
1484 if test x$use_long_long_for_widest_fast_int = xyes; then
1485 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1486 [Define to 1 if the 'long long' type is wider than 'long' but still
1487 efficiently supported by the host hardware.])
1490 gnu_ld_bool=`if test x"$gnu_ld" = x"yes"; then echo 1; else echo 0; fi`
1491 AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld_bool, [Define to 1 if using GNU ld.])
1493 gnu_as_bool=`if test x"$gas" = x"yes"; then echo 1; else echo 0; fi`
1494 AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as_bool, [Define to 1 if using GNU as.])
1497 for f in $host_xm_file; do
1500 if test $count = a; then
1502 elif test $count = ax; then
1503 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1505 echo "Using the following host machine macro files:"
1506 for f in $host_xm_file; do
1507 echo " $srcdir/config/$f"
1510 echo "Using ${out_host_hook_obj} for host machine hooks."
1512 if test "$host_xm_file" != "$build_xm_file"; then
1514 for f in $build_xm_file; do
1517 if test $count = a; then
1519 elif test $count = ax; then
1520 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1522 echo "Using the following build machine macro files:"
1523 for f in $build_xm_file; do
1524 echo " $srcdir/config/$f"
1529 if test -n "$configured_native_system_header_dir"; then
1530 native_system_header_dir=$configured_native_system_header_dir
1532 NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir"
1533 AC_SUBST(NATIVE_SYSTEM_HEADER_DIR)
1537 AC_CACHE_CHECK([whether mcontext_t fields have underscores],
1538 gcc_cv_mcontext_underscores,
1540 #include <sys/cdefs.h>
1541 #include <sys/signal.h>
1542 #include <ucontext.h>
1543 int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
1545 gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes))
1546 if test $gcc_cv_mcontext_underscores = yes; then
1547 AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
1548 [mcontext_t fields start with __])
1557 # Check if a valid thread package
1558 case ${enable_threads} in
1561 target_thread_file='single'
1565 target_thread_file='single'
1567 aix | dce | lynx | mipssde | posix | rtems | \
1568 single | tpf | vxworks | win32)
1569 target_thread_file=${enable_threads}
1572 echo "${enable_threads} is an unknown thread package" 1>&2
1577 if test x${thread_file} = x; then
1578 # No thread file set by target-specific clauses in config.gcc,
1579 # so use file chosen by default logic above
1580 thread_file=${target_thread_file}
1588 if test x$enable___cxa_atexit = xyes || \
1589 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1590 if test x$host = x$target; then
1592 # mingw32 doesn't have __cxa_atexit but uses atexit registration
1593 # keyed to flag_use_cxa_atexit
1601 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1602 [echo "__cxa_atexit can't be enabled on this target"])
1606 # We can't check for __cxa_atexit when building a cross, so assume
1610 if test x$use_cxa_atexit = xyes; then
1611 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
1612 [Define if you want to use __cxa_atexit, rather than atexit, to
1613 register C++ destructors for local statics and global objects.
1614 This is essential for fully standards-compliant handling of
1615 destructors, but requires __cxa_atexit in libc.])
1619 # Look for a file containing extra machine modes.
1620 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1621 extra_modes_file='$(srcdir)'/config/${extra_modes}
1622 AC_SUBST(extra_modes_file)
1623 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1624 [Define to the name of a file containing a list of extra machine modes
1625 for this architecture.])
1628 # Convert extra_options into a form suitable for Makefile use.
1631 for f in $extra_options; do
1632 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1633 all_opt_files="$all_opt_files $srcdir/config/$f"
1635 AC_SUBST(extra_opt_files)
1637 # auto-host.h is the file containing items generated by autoconf and is
1638 # the first file included by config.h.
1639 # If host=build, it is correct to have bconfig include auto-host.h
1640 # as well. If host!=build, we are in error and need to do more
1641 # work to find out the build config parameters.
1642 if test x$host = x$build
1644 build_auto=auto-host.h
1646 # We create a subdir, then run autoconf in the subdir.
1647 # To prevent recursion we set host and build for the new
1648 # invocation of configure to the build for this invocation
1655 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1656 *) realsrcdir=../${srcdir};;
1658 # Clearing GMPINC is necessary to prevent host headers being
1659 # used by the build compiler. Defining GENERATOR_FILE stops
1660 # system.h from including gmp.h.
1661 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1662 CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \
1663 LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \
1664 GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \
1665 ${realsrcdir}/configure \
1666 --enable-languages=${enable_languages-all} \
1667 --target=$target_alias --host=$build_alias --build=$build_alias
1669 # We just finished tests for the build machine, so rename
1670 # the file auto-build.h in the gcc directory.
1671 mv auto-host.h ../auto-build.h
1674 build_auto=auto-build.h
1676 AC_SUBST(build_subdir)
1678 tm_file="${tm_file} defaults.h"
1679 tm_p_file="${tm_p_file} tm-preds.h"
1680 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1681 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1682 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1683 # put this back in temporarily.
1684 xm_file="auto-host.h ansidecl.h ${xm_file}"
1691 # Compile in configure arguments.
1692 if test -f configargs.h ; then
1693 # Being re-configured.
1694 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1695 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1697 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1700 # Double all backslashes and backslash all quotes to turn
1701 # gcc_config_arguments into a C string.
1702 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1703 $gcc_config_arguments
1705 gcc_config_arguments_str=`cat conftest.out`
1708 cat > configargs.h <<EOF
1709 /* Generated automatically. */
1710 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1711 static const char thread_model[] = "$thread_file";
1713 static const struct {
1714 const char *name, *value;
1715 } configure_default_options[] = $configure_default_options;
1720 gcc_BASEVER=`cat $srcdir/BASE-VER`
1721 gcc_DEVPHASE=`cat $srcdir/DEV-PHASE`
1722 gcc_DATESTAMP=`cat $srcdir/DATESTAMP`
1723 if test -f $srcdir/REVISION ; then
1724 gcc_REVISION=`cat $srcdir/REVISION`
1728 cat > plugin-version.h <<EOF
1729 #include "configargs.h"
1731 #define GCCPLUGIN_VERSION_MAJOR `echo $gcc_BASEVER | sed -e 's/^\([0-9]*\).*$/\1/'`
1732 #define GCCPLUGIN_VERSION_MINOR `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.\([0-9]*\).*$/\1/'`
1733 #define GCCPLUGIN_VERSION_PATCHLEVEL `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.[0-9]*\.\([0-9]*\)$/\1/'`
1734 #define GCCPLUGIN_VERSION (GCCPLUGIN_VERSION_MAJOR*1000 + GCCPLUGIN_VERSION_MINOR)
1736 static char basever[] = "$gcc_BASEVER";
1737 static char datestamp[] = "$gcc_DATESTAMP";
1738 static char devphase[] = "$gcc_DEVPHASE";
1739 static char revision[] = "$gcc_REVISION";
1741 /* FIXME plugins: We should make the version information more precise.
1742 One way to do is to add a checksum. */
1744 static struct plugin_gcc_version gcc_version = {basever, datestamp,
1746 configuration_arguments};
1750 # Internationalization
1751 ZW_GNU_GETTEXT_SISTER_DIR
1753 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1754 # -liconv on the link line twice.
1755 case "$LIBINTL" in *$LIBICONV*)
1759 AC_ARG_ENABLE(secureplt,
1760 [AS_HELP_STRING([--enable-secureplt],
1761 [enable -msecure-plt by default for PowerPC])],
1764 AC_ARG_ENABLE(leading-mingw64-underscores,
1765 AS_HELP_STRING([--enable-leading-mingw64-underscores],
1766 [enable leading underscores on 64 bit mingw targets]),
1768 AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ],
1769 [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1,
1770 [Define if we should use leading underscore on 64 bit mingw targets])])
1773 [AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [],
1776 AC_ARG_ENABLE(frame-pointer,
1777 [AS_HELP_STRING([--enable-frame-pointer],
1778 [enable -fno-omit-frame-pointer by default for 32bit x86])], [],
1781 linux* | darwin[[8912]]*)
1782 # Enable -fomit-frame-pointer by default for Linux and Darwin with
1784 enable_frame_pointer=no
1787 enable_frame_pointer=yes
1792 # Windows32 Registry support for specifying GCC installation paths.
1793 AC_ARG_ENABLE(win32-registry,
1794 [AS_HELP_STRING([--disable-win32-registry],
1795 [disable lookup of installation paths in the
1796 Registry on Windows hosts])
1797 AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)])
1798 AS_HELP_STRING([--enable-win32-registry=KEY],
1799 [use KEY instead of GCC version as the last portion
1800 of the registry key])],,)
1803 win32 | pe | cygwin* | mingw32*)
1804 if test "x$enable_win32_registry" != xno; then
1805 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1808 if test "x$enable_win32_registry" != xno; then
1809 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1810 [Define to 1 if installation paths should be looked up in the Windows
1811 Registry. Ignored on non-Windows hosts.])
1813 if test "x$enable_win32_registry" != xyes \
1814 && test "x$enable_win32_registry" != x; then
1815 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1816 [Define to be the last component of the Windows registry key under which
1817 to look for installation paths. The full key used will be
1818 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1819 The default is the GCC version number.])
1825 # Get an absolute path to the GCC top-level source directory
1826 holddir=`${PWDCMD-pwd}`
1828 topdir=`${PWDCMD-pwd}`
1831 # Conditionalize the makefile for this host machine.
1833 for f in ${host_xmake_file}
1835 if test -f ${srcdir}/config/$f
1837 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1841 # Conditionalize the makefile for this target machine.
1843 for f in ${tmake_file}
1845 if test -f ${srcdir}/config/$f
1847 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1850 tmake_file="${tmake_file_}"
1852 out_object_file=`basename $out_file .c`.o
1853 common_out_object_file=`basename $common_out_file .c`.o
1855 tm_file_list="options.h"
1856 tm_include_list="options.h insn-constants.h"
1857 for f in $tm_file; do
1860 f=`echo $f | sed 's/^..//'`
1861 tm_file_list="${tm_file_list} $f"
1862 tm_include_list="${tm_include_list} $f"
1865 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1866 tm_include_list="${tm_include_list} $f"
1869 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1870 tm_include_list="${tm_include_list} config/$f"
1877 for f in $tm_p_file; do
1880 tm_p_file_list="${tm_p_file_list} $f"
1881 tm_p_include_list="${tm_p_include_list} $f"
1884 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1885 tm_p_include_list="${tm_p_include_list} config/$f"
1891 for f in $xm_file; do
1894 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1895 xm_include_list="${xm_include_list} $f"
1898 xm_file_list="${xm_file_list} $f"
1899 xm_include_list="${xm_include_list} $f"
1902 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1903 xm_include_list="${xm_include_list} config/$f"
1909 host_xm_include_list=
1910 for f in $host_xm_file; do
1913 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1914 host_xm_include_list="${host_xm_include_list} $f"
1917 host_xm_file_list="${host_xm_file_list} $f"
1918 host_xm_include_list="${host_xm_include_list} $f"
1921 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1922 host_xm_include_list="${host_xm_include_list} config/$f"
1928 for f in $build_xm_file; do
1931 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1932 build_xm_include_list="${build_xm_include_list} $f"
1934 auto-build.h | auto-host.h )
1935 build_xm_file_list="${build_xm_file_list} $f"
1936 build_xm_include_list="${build_xm_include_list} $f"
1939 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1940 build_xm_include_list="${build_xm_include_list} config/$f"
1945 # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a
1946 # cross-compiler which does not use the native headers and libraries.
1947 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1948 CROSS= AC_SUBST(CROSS)
1949 ALL=all.internal AC_SUBST(ALL)
1950 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1952 if test "x$with_build_sysroot" != x; then
1953 build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
1955 # This value is used, even on a native system, because
1956 # CROSS_SYSTEM_HEADER_DIR is just
1957 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1958 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1961 if test x$host != x$target
1963 CROSS="-DCROSS_DIRECTORY_STRUCTURE"
1965 SYSTEM_HEADER_DIR=$build_system_header_dir
1966 case "$host","$target" in
1967 # Darwin crosses can use the host system's libraries and headers,
1968 # because of the fat library support. Of course, it must be the
1969 # same version of Darwin on both sides. Allow the user to
1970 # just say --target=foo-darwin without a version number to mean
1971 # "the version on this system".
1972 *-*-darwin*,*-*-darwin*)
1973 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1974 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1975 if test $hostos = $targetos -o $targetos = darwin ; then
1977 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1982 i?86-*-*,x86_64-*-* \
1983 | powerpc*-*-*,powerpc64*-*-*)
1984 CROSS="$CROSS -DNATIVE_CROSS" ;;
1989 if test "x$with_headers" = x; then
1996 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1997 SYSTEM_HEADER_DIR=$build_system_header_dir
2000 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
2001 if test "x$with_headers" != x; then
2002 target_header_dir=$with_headers
2003 elif test "x$with_sysroot" = x; then
2004 target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include"
2005 elif test "x$with_build_sysroot" != "x"; then
2006 target_header_dir="${with_build_sysroot}${native_system_header_dir}"
2007 elif test "x$with_sysroot" = xyes; then
2008 target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}"
2010 target_header_dir="${with_sysroot}${native_system_header_dir}"
2013 target_header_dir=${native_system_header_dir}
2016 # If this is a cross-compiler that does not
2017 # have its own set of headers then define
2020 # If this is using newlib, without having the headers available now,
2021 # then define inhibit_libc in LIBGCC2_CFLAGS.
2022 # This prevents libgcc2 from containing any code which requires libc
2024 : ${inhibit_libc=false}
2025 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
2026 test x$with_newlib = xyes ; } &&
2027 { test "x$with_headers" = xno || test ! -f "$target_header_dir/stdio.h"; } ; then
2030 AC_SUBST(inhibit_libc)
2032 # When building gcc with a cross-compiler, we need to adjust things so
2033 # that the generator programs are still built with the native compiler.
2034 # Also, we cannot run fixincludes.
2036 # These are the normal (build=host) settings:
2037 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
2038 CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD)
2039 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
2040 BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS)
2041 BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS)
2042 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
2044 BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS)' AC_SUBST(BUILD_NO_PIE_CFLAGS)
2045 BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG)' AC_SUBST(BUILD_NO_PIE_FLAG)
2047 # And these apply if build != host, or we are generating coverage data
2048 if test x$build != x$host || test "x$coverage_flags" != x
2050 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
2051 BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)'
2052 BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
2054 NO_PIE_CFLAGS_FOR_BUILD=${NO_PIE_CFLAGS_FOR_BUILD-${NO_PIE_CFLAGS}}
2055 NO_PIE_FLAG_FOR_BUILD=${NO_PIE_FLAG_FOR_BUILD-${NO_PIE_FLAG}}
2056 BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS_FOR_BUILD)'
2057 BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG_FOR_BUILD)'
2059 AC_SUBST(NO_PIE_CFLAGS_FOR_BUILD)
2060 AC_SUBST(NO_PIE_FLAG_FOR_BUILD)
2062 # Expand extra_headers to include complete path.
2063 # This substitutes for lots of t-* files.
2065 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
2066 for file in ${extra_headers} ; do
2067 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
2070 # If use_gcc_tgmath is set, append ginclude/tgmath.h.
2071 if test x"$use_gcc_tgmath" = xyes
2072 then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h"
2075 # Define collect2 in Makefile.
2076 case $host_can_use_collect2 in
2078 *) collect2='collect2$(exeext)' ;;
2080 AC_SUBST([collect2])
2082 # Add a definition of USE_COLLECT2 if system wants one.
2083 case $use_collect2 in
2084 no) use_collect2= ;;
2087 host_xm_defines="${host_xm_defines} USE_COLLECT2"
2088 xm_defines="${xm_defines} USE_COLLECT2"
2089 case $host_can_use_collect2 in
2091 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
2097 AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}",
2098 [Define to the name of the LTO plugin DSO that must be
2099 passed to the linker's -plugin=LIB option.])
2101 # ---------------------------
2102 # Assembler & linker features
2103 # ---------------------------
2105 # During stage 2, ld is actually gcc/collect-ld, which is a small script to
2106 # discern between when to use prev-ld/ld-new and when to use ld/ld-new.
2107 # However when ld-new is first executed from the build tree, libtool will
2108 # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers
2109 # to the build tree. While doing this we need to use the previous-stage
2110 # linker, or we have an infinite loop. The presence of a shell script as
2111 # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses
2112 # the gcc/collect-ld script. So we need to know how libtool works, or
2113 # exec-tool will fail.
2115 m4_defun([_LT_CONFIG_COMMANDS], [])
2118 AC_SUBST(enable_fast_install)
2120 # Identify the assembler which will work hand-in-glove with the newly
2121 # built GCC, so that we can examine its features. This is the assembler
2122 # which will be driven by the driver program.
2124 # If build != host, and we aren't building gas in-tree, we identify a
2125 # build->target assembler and hope that it will have the same features
2126 # as the host->target assembler we'll be using.
2127 gcc_cv_gas_major_version=
2128 gcc_cv_gas_minor_version=
2129 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
2131 m4_pattern_allow([AS_FOR_TARGET])dnl
2132 AS_VAR_SET_IF(gcc_cv_as,, [
2133 if test -x "$DEFAULT_ASSEMBLER"; then
2134 gcc_cv_as="$DEFAULT_ASSEMBLER"
2135 elif test -f $gcc_cv_as_gas_srcdir/configure.ac \
2136 && test -f ../gas/Makefile \
2137 && test x$build = x$host; then
2138 gcc_cv_as=../gas/as-new$build_exeext
2139 elif test -x as$build_exeext; then
2140 # Build using assembler in the current directory.
2141 gcc_cv_as=./as$build_exeext
2142 elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then
2143 gcc_cv_as="$AS_FOR_TARGET"
2145 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
2148 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
2149 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
2150 case "$ORIGINAL_AS_FOR_TARGET" in
2151 ./as | ./as$build_exeext) ;;
2152 *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;;
2155 AC_MSG_CHECKING(what assembler to use)
2156 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
2157 # Single tree build which includes gas. We want to prefer it
2158 # over whatever linker top-level may have detected, since
2159 # we'll use what we're building after installation anyway.
2160 AC_MSG_RESULT(newly built gas)
2162 _gcc_COMPUTE_GAS_VERSION
2163 in_tree_gas_is_elf=no
2164 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2165 || (grep 'obj_format = multi' ../gas/Makefile \
2166 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
2168 in_tree_gas_is_elf=yes
2171 AC_MSG_RESULT($gcc_cv_as)
2177 [[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]],
2178 [case "${enableval}" in
2184 install_gold_as_default=no
2186 [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]],
2187 [case "${enableval}" in
2189 install_gold_as_default=yes
2192 if test x${default_ld} != x; then
2193 install_gold_as_default=yes
2199 AC_MSG_ERROR([invalid --enable-gold argument])
2203 # Identify the linker which will work hand-in-glove with the newly
2204 # built GCC, so that we can examine its features. This is the linker
2205 # which will be driven by the driver program.
2207 # If build != host, and we aren't building gas in-tree, we identify a
2208 # build->target linker and hope that it will have the same features
2209 # as the host->target linker we'll be using.
2210 gcc_cv_gld_major_version=
2211 gcc_cv_gld_minor_version=
2212 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
2213 gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold
2214 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
2216 AS_VAR_SET_IF(gcc_cv_ld,, [
2217 if test -x "$DEFAULT_LINKER"; then
2218 gcc_cv_ld="$DEFAULT_LINKER"
2219 elif test $install_gold_as_default = yes \
2220 && test -f $gcc_cv_ld_gold_srcdir/configure.ac \
2221 && test -f ../gold/Makefile \
2222 && test x$build = x$host; then
2223 gcc_cv_ld=../gold/ld-new$build_exeext
2224 elif test -f $gcc_cv_ld_gld_srcdir/configure.ac \
2225 && test -f ../ld/Makefile \
2226 && test x$build = x$host; then
2227 gcc_cv_ld=../ld/ld-new$build_exeext
2228 elif test -x collect-ld$build_exeext; then
2229 # Build using linker in the current directory.
2230 gcc_cv_ld=./collect-ld$build_exeext
2231 elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then
2232 gcc_cv_ld="$LD_FOR_TARGET"
2234 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
2237 ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld
2238 PLUGIN_LD_SUFFIX=`basename $gcc_cv_ld | sed -e "s,$target_alias-,,"`
2239 # if the PLUGIN_LD is set ld-new, just have it as ld
2240 # as that is the installed named.
2241 if test x$PLUGIN_LD_SUFFIX = xld-new \
2242 || test x$PLUGIN_LD_SUFFIX = xcollect-ld ; then
2245 AC_ARG_WITH(plugin-ld,
2246 [AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])],
2247 [if test x"$withval" != x; then
2248 ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval"
2249 PLUGIN_LD_SUFFIX="$withval"
2251 AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET)
2252 AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$PLUGIN_LD_SUFFIX", [Specify plugin linker])
2254 # Check to see if we are using gold instead of ld
2255 AC_MSG_CHECKING(whether we are using gold)
2257 if test x$gcc_cv_ld != x; then
2258 if $gcc_cv_ld --version 2>/dev/null | sed 1q \
2259 | grep "GNU gold" > /dev/null; then
2263 AC_MSG_RESULT($ld_is_gold)
2265 AC_MSG_CHECKING(gold linker with split stack support as non default)
2266 # Check to see if default ld is not gold, but gold is
2267 # available and has support for split stack. If gcc was configured
2268 # with gold then no checking is done.
2270 if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then
2272 # For platforms other than powerpc64*, enable as appropriate.
2275 ld_gold=`which ${gcc_cv_ld}.gold`
2276 # Make sure this gold has minimal split stack support
2277 if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then
2278 ld_vers=`$ld_gold --version | sed 1q`
2279 gold_vers=`echo $ld_vers | sed -n \
2280 -e 's,^[[^)]]*[[ ]]\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*[[^)]]*\)) .*$,\1,p'`
2282 # check that the gold version contains the complete split stack support
2283 # on powerpc64 big and little endian
2285 case "$gold_vers" in
2286 2.25.[[1-9]]*|2.2[[6-9]][[.0-9]]*|2.[[3-9]][[.0-9]]*|[[3-9]].[[.0-9]]*) gold_non_default=yes
2288 *) gold_non_default=no
2294 if test $gold_non_default = yes; then
2295 AC_DEFINE(HAVE_GOLD_NON_DEFAULT_SPLIT_STACK, 1,
2296 [Define if the gold linker supports split stack and is available as a non-default])
2299 AC_MSG_RESULT($gold_non_default)
2301 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
2302 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
2303 case "$ORIGINAL_LD_FOR_TARGET" in
2304 ./collect-ld | ./collect-ld$build_exeext) ;;
2305 *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;;
2308 AC_MSG_CHECKING(what linker to use)
2309 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \
2310 || test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then
2311 # Single tree build which includes ld. We want to prefer it
2312 # over whatever linker top-level may have detected, since
2313 # we'll use what we're building after installation anyway.
2314 AC_MSG_RESULT(newly built ld)
2316 in_tree_ld_is_elf=no
2317 if (grep 'EMUL = .*elf' ../ld/Makefile \
2318 || grep 'EMUL = .*linux' ../ld/Makefile \
2319 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
2320 in_tree_ld_is_elf=yes
2321 elif test "$ld_is_gold" = yes; then
2322 in_tree_ld_is_elf=yes
2324 for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.ac $gcc_cv_ld_gld_srcdir/Makefile.in
2327 gcc_cv_gld_version=`sed -n -e 's/^[ ]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f`
2328 if test x$gcc_cv_gld_version != x; then
2332 case $gcc_cv_gld_version in
2335 *) AC_MSG_ERROR([[cannot find version of in-tree linker]]) ;;
2338 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
2339 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
2341 ORIGINAL_LD_BFD_FOR_TARGET=../ld/ld-new$build_exeext
2342 ORIGINAL_LD_GOLD_FOR_TARGET=../gold/ld-new$build_exeext
2344 AC_MSG_RESULT($gcc_cv_ld)
2346 gcc_cvs_ld_program=`dirname $gcc_cv_ld`/`basename $gcc_cv_ld $host_exeext`
2347 ORIGINAL_LD_BFD_FOR_TARGET=${gcc_cvs_ld_program}.bfd$host_exeext
2348 ORIGINAL_LD_GOLD_FOR_TARGET=${gcc_cvs_ld_program}.gold$host_exeext
2351 AC_SUBST(ORIGINAL_LD_BFD_FOR_TARGET)
2352 AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET)
2354 # Figure out what nm we will be using.
2355 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
2356 AS_VAR_SET_IF(gcc_cv_nm,, [
2357 if test -f $gcc_cv_binutils_srcdir/configure.ac \
2358 && test -f ../binutils/Makefile \
2359 && test x$build = x$host; then
2360 gcc_cv_nm=../binutils/nm-new$build_exeext
2361 elif test -x nm$build_exeext; then
2362 gcc_cv_nm=./nm$build_exeext
2363 elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then
2364 gcc_cv_nm="$NM_FOR_TARGET"
2366 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
2369 AC_MSG_CHECKING(what nm to use)
2370 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
2371 # Single tree build which includes binutils.
2372 AC_MSG_RESULT(newly built nm)
2375 AC_MSG_RESULT($gcc_cv_nm)
2379 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
2380 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
2381 case "$ORIGINAL_NM_FOR_TARGET" in
2382 ./nm | ./nm$build_exeext) ;;
2383 *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;;
2387 # Figure out what objdump we will be using.
2388 AS_VAR_SET_IF(gcc_cv_objdump,, [
2389 if test -f $gcc_cv_binutils_srcdir/configure.ac \
2390 && test -f ../binutils/Makefile \
2391 && test x$build = x$host; then
2392 # Single tree build which includes binutils.
2393 gcc_cv_objdump=../binutils/objdump$build_exeext
2394 elif test -x objdump$build_exeext; then
2395 gcc_cv_objdump=./objdump$build_exeext
2396 elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then
2397 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
2399 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
2402 AC_MSG_CHECKING(what objdump to use)
2403 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
2404 # Single tree build which includes binutils.
2405 AC_MSG_RESULT(newly built objdump)
2406 elif test x$gcc_cv_objdump = x; then
2407 AC_MSG_RESULT(not found)
2409 AC_MSG_RESULT($gcc_cv_objdump)
2412 # Figure out what readelf we will be using.
2413 AS_VAR_SET_IF(gcc_cv_readelf,, [
2414 if test -f $gcc_cv_binutils_srcdir/configure.ac \
2415 && test -f ../binutils/Makefile \
2416 && test x$build = x$host; then
2417 # Single tree build which includes binutils.
2418 gcc_cv_readelf=../binutils/readelf$build_exeext
2419 elif test -x readelf$build_exeext; then
2420 gcc_cv_readelf=./readelf$build_exeext
2421 elif ( set dummy $READELF_FOR_TARGET; test -x $[2] ); then
2422 gcc_cv_readelf="$READELF_FOR_TARGET"
2424 AC_PATH_PROG(gcc_cv_readelf, $READELF_FOR_TARGET)
2427 AC_MSG_CHECKING(what readelf to use)
2428 if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then
2429 # Single tree build which includes binutils.
2430 AC_MSG_RESULT(newly built readelf)
2431 elif test x$gcc_cv_readelf = x; then
2432 AC_MSG_RESULT(not found)
2434 AC_MSG_RESULT($gcc_cv_readelf)
2437 # Figure out what assembler alignment features are present.
2438 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2442 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2443 [Define if your assembler supports .balign and .p2align.])])
2445 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2448 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2449 [Define if your assembler supports specifying the maximum number
2450 of bytes to skip when using the GAS .p2align command.])])
2452 gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,
2455 [AC_DEFINE(HAVE_GAS_LITERAL16, 1,
2456 [Define if your assembler supports .literal16.])])
2458 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2460 [conftest_label1: .word 0
2462 conftest_label2: .word 0
2464 [if test x$gcc_cv_nm != x; then
2465 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2466 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2467 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2469 else gcc_cv_as_subsection_m1=yes
2471 rm -f conftest.nm1 conftest.nm2
2473 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2474 [Define if your assembler supports .subsection and .subsection -1 starts
2475 emitting at the beginning of your section.])])
2477 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2480 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2482 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2484 [ .weakref foobar, barfnot],,
2485 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2487 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2490 .NSUBSPA $CODE$,COMDAT],,
2491 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2493 # .hidden needs to be supported in both the assembler and the linker,
2494 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2495 # This is irritatingly difficult to feature test for; we have to check the
2496 # date string after the version number. If we've got an in-tree
2497 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2499 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2500 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2506 # Darwin as has some visibility support, though with a different syntax.
2507 gcc_cv_as_hidden=yes
2511 # gnu_indirect_function type is an extension proposed at
2512 # http://groups.google/com/group/generic-abi/files. It allows dynamic runtime
2513 # selection of function implementation
2514 AC_ARG_ENABLE(gnu-indirect-function,
2515 [AS_HELP_STRING([--enable-gnu-indirect-function],
2516 [enable the use of the @gnu_indirect_function to glibc systems])],
2517 [case $enable_gnu_indirect_function in
2519 *) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function.
2520 Valid choices are 'yes' and 'no'.]) ;;
2522 [enable_gnu_indirect_function="$default_gnu_indirect_function"])
2524 gif=`if test x$enable_gnu_indirect_function = xyes; then echo 1; else echo 0; fi`
2525 AC_DEFINE_UNQUOTED(HAVE_GNU_INDIRECT_FUNCTION, $gif,
2526 [Define if your system supports gnu indirect functions.])
2530 if test $in_tree_ld != yes ; then
2531 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2532 if echo "$ld_ver" | grep GNU > /dev/null; then
2533 if test x"$ld_is_gold" = xyes; then
2534 # GNU gold --version looks like this:
2536 # GNU gold (GNU Binutils 2.21.51.20110225) 1.11
2538 # We extract the binutils version which is more familiar and specific
2539 # than the gold version.
2540 ld_vers=`echo $ld_ver | sed -n \
2541 -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
2543 # GNU ld --version looks like this:
2545 # GNU ld (GNU Binutils) 2.21.51.20110225
2546 ld_vers=`echo $ld_ver | sed -n \
2547 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
2549 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2550 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2551 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2552 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2556 # See acinclude.m4 (gcc_SUN_LD_VERSION) for the version number
2559 # Don't reuse gcc_gv_sun_ld_vers_* in case a linker other than
2560 # /usr/ccs/bin/ld has been configured.
2561 ld_ver=`$gcc_cv_ld -V 2>&1`
2562 if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
2563 ld_vers=`echo $ld_ver | sed -n \
2564 -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'`
2565 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2566 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2574 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2575 [[if test $in_tree_ld = yes ; then
2577 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2578 && test $in_tree_ld_is_elf = yes; then
2579 gcc_cv_ld_hidden=yes
2582 gcc_cv_ld_hidden=yes
2583 if test x"$ld_is_gold" = xyes; then
2585 elif echo "$ld_ver" | grep GNU > /dev/null; then
2587 mmix-knuth-mmixware)
2588 # The linker emits by default mmo, not ELF, so "no" is appropriate.
2592 if test 0"$ld_date" -lt 20020404; then
2593 if test -n "$ld_date"; then
2594 # If there was date string, but was earlier than 2002-04-04, fail
2596 elif test -z "$ld_vers"; then
2597 # If there was no date string nor ld version number, something is wrong
2600 test -z "$ld_vers_patch" && ld_vers_patch=0
2601 if test "$ld_vers_major" -lt 2; then
2603 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2604 gcc_cv_ld_hidden="no"
2605 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2613 # Darwin ld has some visibility support.
2614 gcc_cv_ld_hidden=yes
2616 hppa64*-*-hpux* | ia64*-*-hpux*)
2617 gcc_cv_ld_hidden=yes
2619 *-*-solaris2.1[0-9]*)
2620 # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
2621 # .symbolic was only added in Solaris 9 12/02.
2622 gcc_cv_ld_hidden=yes
2630 libgcc_visibility=no
2631 AC_SUBST(libgcc_visibility)
2632 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2633 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2634 libgcc_visibility=yes
2635 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2636 [Define if your assembler and linker support .hidden.])
2639 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2640 gcc_cv_ld_ro_rw_mix=unknown
2641 if test $in_tree_ld = yes ; then
2642 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2643 && test $in_tree_ld_is_elf = yes; then
2644 gcc_cv_ld_ro_rw_mix=read-write
2646 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2647 echo '.section myfoosect, "a"' > conftest1.s
2648 echo '.section myfoosect, "aw"' > conftest2.s
2649 echo '.byte 1' >> conftest2.s
2650 echo '.section myfoosect, "a"' > conftest3.s
2651 echo '.byte 0' >> conftest3.s
2652 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2653 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2654 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2655 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2656 conftest2.o conftest3.o > /dev/null 2>&1; then
2657 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2658 | sed -e '/myfoosect/!d' -e N`
2659 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2660 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2661 gcc_cv_ld_ro_rw_mix=read-only
2663 gcc_cv_ld_ro_rw_mix=read-write
2668 rm -f conftest.* conftest[123].*
2671 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2672 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2673 [Define if your linker links a mix of read-only
2674 and read-write sections into a read-write section.])
2676 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2678 gcc_AC_INITFINI_ARRAY
2680 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2681 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2689 [[# GAS versions before 2.11 do not support uleb128,
2690 # despite appearing to.
2691 # ??? There exists an elf-specific test that will crash
2692 # the assembler. Perhaps it's better to figure out whether
2693 # arbitrary sections are supported and try the test.
2694 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2695 if echo "$as_ver" | grep GNU > /dev/null; then
2696 as_vers=`echo $as_ver | sed -n \
2697 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
2698 as_major=`expr "$as_vers" : '\([0-9]*\)'`
2699 as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'`
2700 if test $as_major -eq 2 && test $as_minor -lt 11
2702 else gcc_cv_as_leb128=yes
2705 [AC_DEFINE(HAVE_AS_LEB128, 1,
2706 [Define if your assembler supports .sleb128 and .uleb128.])])
2708 # Check if we have assembler support for unwind directives.
2709 gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
2716 .cfi_escape 1, 2, 3, 4, 5
2720 # If the linker used on Solaris (like Sun ld) isn't capable of merging
2721 # read-only and read-write sections, we need to make sure that the
2722 # assembler used emits read-write .eh_frame sections.
2723 if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
2724 if test "x$gcc_cv_objdump" != x; then
2725 if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
2726 sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
2727 gcc_cv_as_cfi_directive=no
2730 i?86-*-solaris2.1[[0-9]]* | x86_64-*-solaris2.1[[0-9]]*)
2731 # On Solaris/x86, make sure that GCC and assembler agree on using
2732 # read-only .eh_frame sections for 64-bit.
2733 if test x$gas = xyes; then
2734 as_ix86_64_opt="--64"
2736 as_ix86_64_opt="-xarch=amd64"
2738 if $gcc_cv_as $as_ix86_64_opt -o conftest.o conftest.s > /dev/null 2>&1 && \
2739 $gcc_cv_objdump -h conftest.o 2>/dev/null | \
2740 sed -e /.eh_frame/!d -e N | \
2741 grep READONLY > /dev/null; then
2742 gcc_cv_as_cfi_directive=yes
2744 gcc_cv_as_cfi_directive=no
2748 gcc_cv_as_cfi_directive=yes
2753 # no objdump, err on the side of caution
2754 gcc_cv_as_cfi_directive=no
2757 gcc_cv_as_cfi_directive=yes
2761 gcc_cv_as_cfi_directive=yes
2764 if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then
2765 gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
2769 .cfi_adjust_cfa_offset 64
2771 .cfi_adjust_cfa_offset 128
2774 if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \
2775 | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then
2776 gcc_cv_as_cfi_advance_working=yes
2780 # no objdump, err on the side of caution
2781 gcc_cv_as_cfi_advance_working=no
2783 GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE)
2784 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
2785 [`if test $gcc_cv_as_cfi_directive = yes \
2786 && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`],
2787 [Define 0/1 if your assembler supports CFI directives.])
2789 GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE)
2790 gcc_GAS_CHECK_FEATURE([cfi personality directive],
2791 gcc_cv_as_cfi_personality_directive, ,,
2794 .cfi_personality 0, symbol
2796 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE,
2797 [`if test $gcc_cv_as_cfi_personality_directive = yes;
2798 then echo 1; else echo 0; fi`],
2799 [Define 0/1 if your assembler supports .cfi_personality.])
2801 gcc_GAS_CHECK_FEATURE([cfi sections directive],
2802 gcc_cv_as_cfi_sections_directive, ,,
2804 .cfi_sections .debug_frame, .eh_frame
2808 win32 | pe | cygwin* | mingw32*)
2809 # Need to check that we generated the correct relocation for the
2810 # .debug_frame section. This was fixed for binutils 2.21.
2811 gcc_cv_as_cfi_sections_directive=no
2812 if test "x$gcc_cv_objdump" != x; then
2813 if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \
2814 grep secrel > /dev/null; then
2815 gcc_cv_as_cfi_sections_directive=yes
2820 gcc_cv_as_cfi_sections_directive=yes
2823 GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE)
2824 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE,
2825 [`if test $gcc_cv_as_cfi_sections_directive = yes;
2826 then echo 1; else echo 0; fi`],
2827 [Define 0/1 if your assembler supports .cfi_sections.])
2829 # GAS versions up to and including 2.11.0 may mis-optimize
2831 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2839 .section .eh_frame,"aw",@progbits
2841 .4byte .LECIE1-.LSCIE1
2855 .4byte .LEFDE1-.LASFDE1
2857 .4byte .LASFDE1-__FRAME_BEGIN__
2865 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2866 cat > conftest.lit <<EOF
2867 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2868 0010 01000000 12000000 18000000 00000000 ................
2869 0020 08000000 04080000 0044 .........D @&t@
2871 cat > conftest.big <<EOF
2872 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2873 0010 00000001 00000012 00000018 00000000 ................
2874 0020 00000008 04000000 0844 .........D @&t@
2876 # If the assembler didn't choke, and we can objdump,
2877 # and we got the correct data, then succeed.
2878 # The text in the here-document typically retains its unix-style line
2879 # endings, while the output of objdump will use host line endings.
2880 # Therefore, use diff -b for the comparisons.
2881 if test x$gcc_cv_objdump != x \
2882 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2883 | tail -3 > conftest.got \
2884 && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \
2885 || diff -b conftest.big conftest.got > /dev/null 2>&1; }
2887 gcc_cv_as_eh_frame=yes
2888 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2889 gcc_cv_as_eh_frame=buggy
2891 # Uh oh, what do we do now?
2892 gcc_cv_as_eh_frame=no
2895 if test $gcc_cv_as_eh_frame = buggy; then
2896 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2897 [Define if your assembler mis-optimizes .eh_frame data.])
2900 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2901 [elf,2,12,0], [--fatal-warnings],
2902 [.section .rodata.str, "aMS", @progbits, 1])
2903 if test $gcc_cv_as_shf_merge = no; then
2904 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2905 [elf,2,12,0], [--fatal-warnings],
2906 [.section .rodata.str, "aMS", %progbits, 1])
2908 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2909 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2910 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2912 gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)],
2913 gcc_cv_as_comdat_group,
2914 [elf,2,16,0], [--fatal-warnings],
2915 [.section .text,"axG",@progbits,.foo,comdat])
2916 if test $gcc_cv_as_comdat_group = yes; then
2917 gcc_cv_as_comdat_group_percent=no
2918 gcc_cv_as_comdat_group_group=no
2920 gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)],
2921 gcc_cv_as_comdat_group_percent,
2922 [elf,2,16,0], [--fatal-warnings],
2923 [.section .text,"axG",%progbits,.foo,comdat])
2924 if test $gcc_cv_as_comdat_group_percent = yes; then
2925 gcc_cv_as_comdat_group_group=no
2928 # Sun as uses a completely different syntax.
2933 .group foo,".text%foo",#comdat
2934 .section ".text%foo", #alloc,#execinstr,#progbits
2939 i?86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
2941 .group foo,.text%foo,#comdat
2942 .section .text%foo, "ax", @progbits
2948 gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)],
2949 gcc_cv_as_comdat_group_group,
2953 if test -z "${gcc_cv_as_comdat_group_group+set}"; then
2954 gcc_cv_as_comdat_group_group=no
2958 if test x"$ld_is_gold" = xyes; then
2960 elif test $in_tree_ld = yes ; then
2962 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2963 && test $in_tree_ld_is_elf = yes; then
2966 elif echo "$ld_ver" | grep GNU > /dev/null; then
2968 if test 0"$ld_date" -lt 20050308; then
2969 if test -n "$ld_date"; then
2970 # If there was date string, but was earlier than 2005-03-08, fail
2972 elif test "$ld_vers_major" -lt 2; then
2974 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2981 *-*-solaris2.1[1-9]*)
2983 # Sun ld has COMDAT group support since Solaris 9, but it doesn't
2984 # interoperate with GNU as until Solaris 11 build 130, i.e. ld
2987 # If using Sun as for COMDAT group as emitted by GCC, one needs at
2988 # least ld version 1.2267.
2989 if test "$ld_vers_major" -gt 1; then
2991 elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then
2993 elif test "$ld_vers_minor" -ge 2267; then
2998 # Assume linkers other than GNU ld don't support COMDAT group.
3004 # Allow overriding the automatic COMDAT group tests above.
3005 AC_ARG_ENABLE(comdat,
3006 [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])],
3007 [comdat_group="$enable_comdat"])
3008 if test $comdat_group = no; then
3009 gcc_cv_as_comdat_group=no
3010 gcc_cv_as_comdat_group_percent=no
3011 gcc_cv_as_comdat_group_group=no
3013 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
3014 [`if test $gcc_cv_as_comdat_group = yes \
3015 || test $gcc_cv_as_comdat_group_percent = yes \
3016 || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`],
3017 [Define 0/1 if your assembler and linker support COMDAT groups.])
3019 gcc_GAS_CHECK_FEATURE([line table discriminator support],
3020 gcc_cv_as_discriminator,
3024 .loc 1 1 0 discriminator 1],,
3025 [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1,
3026 [Define if your assembler supports the .loc discriminator sub-directive.])])
3028 # Thread-local storage - the check is heavily parameterized.
3037 .section ".tdata","awT",@progbits
3040 ldq $27,__tls_get_addr($29) !literal!1
3041 lda $16,foo($29) !tlsgd!1
3042 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
3043 ldq $27,__tls_get_addr($29) !literal!2
3044 lda $16,foo($29) !tlsldm!2
3045 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
3046 ldq $1,foo($29) !gotdtprel
3047 ldah $2,foo($29) !dtprelhi
3048 lda $3,foo($2) !dtprello
3049 lda $4,foo($29) !dtprel
3050 ldq $1,foo($29) !gottprel
3051 ldah $2,foo($29) !tprelhi
3052 lda $3,foo($2) !tprello
3053 lda $4,foo($29) !tprel'
3056 tls_as_opt=--fatal-warnings
3058 cris-*-*|crisv32-*-*)
3060 .section ".tdata","awT",@progbits
3067 tls_as_opt=--fatal-warnings
3071 .section ".tdata","awT",@progbits
3083 .section ".tdata","awT",@progbits
3087 addil LT%foo-$tls_gdidx$,gp
3088 ldo RT%foo-$tls_gdidx$(%r1),%arg0
3091 addil LT%foo-$tls_ldidx$,gp
3093 ldo RT%foo-$tls_ldidx$(%r1),%arg0
3094 addil LR%foo-$tls_dtpoff$,%ret0
3095 ldo RR%foo-$tls_dtpoff$(%r1),%t1
3097 addil LT%foo-$tls_ieoff$,gp
3098 ldw RT%foo-$tls_ieoff$(%r1),%t2
3101 addil LR%foo-$tls_leoff$,%t1
3102 ldo RR%foo-$tls_leoff$(%r1),%t2'
3105 tls_as_opt=--fatal-warnings
3109 .section ".tdata","awT",%progbits
3120 i[34567]86-*-* | x86_64-*-*)
3122 i[34567]86-*-solaris2.* | x86_64-*-solaris2.1[0-9]*)
3129 if test x$on_solaris = xyes && test x$gas_flag = xno; then
3131 .section .tdata,"awt",@progbits'
3136 AC_DEFINE(TLS_SECTION_ASM_FLAG, 't',
3137 [Define to the flag used to mark TLS sections if the default (`T') doesn't work.])
3141 .section ".tdata","awT",@progbits'
3145 tls_as_opt="--fatal-warnings"
3149 conftest_s="$conftest_s
3153 leal foo@tlsgd(,%ebx,1), %eax
3154 leal foo@tlsldm(%ebx), %eax
3155 leal foo@dtpoff(%eax), %edx
3156 movl foo@gottpoff(%ebx), %eax
3157 subl foo@gottpoff(%ebx), %eax
3158 addl foo@gotntpoff(%ebx), %eax
3159 movl foo@indntpoff, %eax
3160 movl \$foo@tpoff, %eax
3161 subl \$foo@tpoff, %eax
3162 leal foo@ntpoff(%ecx), %eax"
3165 if test x$on_solaris = xyes; then
3167 yes) tls_as_opt="$tls_as_opt --64" ;;
3168 no) tls_as_opt="$tls_as_opt -xarch=amd64" ;;
3171 conftest_s="$conftest_s
3175 leaq foo@tlsgd(%rip), %rdi
3176 leaq foo@tlsld(%rip), %rdi
3177 leaq foo@dtpoff(%rax), %rdx
3178 movq foo@gottpoff(%rip), %rax
3179 movq \$foo@tpoff, %rax"
3185 .section ".tdata","awT",@progbits
3188 addl r16 = @ltoff(@dtpmod(foo#)), gp
3189 addl r17 = @ltoff(@dtprel(foo#)), gp
3190 addl r18 = @ltoff(@tprel(foo#)), gp
3191 addl r19 = @dtprel(foo#), gp
3192 adds r21 = @dtprel(foo#), r13
3193 movl r23 = @dtprel(foo#)
3194 addl r20 = @tprel(foo#), gp
3195 adds r22 = @tprel(foo#), r13
3196 movl r24 = @tprel(foo#)'
3199 tls_as_opt=--fatal-warnings
3203 .section .tdata,"awT",@progbits
3207 addik r5,r20,x@TLSGD
3208 addik r5,r20,x@TLSLDM'
3211 tls_as_opt='--fatal-warnings'
3215 .section .tdata,"awT",@progbits
3219 addiu $4, $28, %tlsgd(x)
3220 addiu $4, $28, %tlsldm(x)
3221 lui $4, %dtprel_hi(x)
3222 addiu $4, $4, %dtprel_lo(x)
3223 lw $4, %gottprel(x)($28)
3224 lui $4, %tprel_hi(x)
3225 addiu $4, $4, %tprel_lo(x)'
3228 tls_as_opt='-32 --fatal-warnings'
3232 .section .tdata,"awT",@progbits
3237 move.l x@TLSGD(%a5),%a0
3238 move.l x@TLSLDM(%a5),%a0
3239 move.l x@TLSLDO(%a5),%a0
3240 move.l x@TLSIE(%a5),%a0
3241 move.l x@TLSLE(%a5),%a0'
3244 tls_as_opt='--fatal-warnings'
3248 .section ".tdata","awT",@progbits'
3251 tls_as_opt="--fatal-warnings"
3255 .section ".tdata","awT",%progbits
3259 add x0, x0, #:tlsgd_lo12:x
3264 tls_as_opt='--fatal-warnings'
3268 .extern __get_tpointer
3286 .section ".tdata","awT",@progbits
3294 addi 3,2,ld0@got@tlsgd
3300 addi 3,2,x1@got@tlsld
3306 addis 9,3,x2@dtprel@ha
3307 addi 9,9,x2@dtprel@l
3310 ld 9,x3@got@dtprel(2)
3316 tls_as_opt="-a64 --fatal-warnings"
3320 .section ".tdata","awT",@progbits
3328 addi 3,31,ld0@got@tlsgd
3330 addi 3,31,x1@got@tlsld
3333 addis 9,3,x2@dtprel@ha
3334 addi 9,9,x2@dtprel@l
3335 lwz 9,x3@got@tprel(31)
3338 addis 9,2,x2@tprel@ha
3339 addi 9,9,x2@tprel@l'
3342 tls_as_opt="-a32 --fatal-warnings"
3346 .section ".tdata","awT",@progbits
3355 l %r1,foo@GOTNTPOFF(%r12)
3356 l %r1,0(%r1):tls_load:foo
3357 bas %r14,0(%r1,%r13):tls_gdcall:foo
3358 bas %r14,0(%r1,%r13):tls_ldcall:foo'
3361 tls_as_opt="-m31 --fatal-warnings"
3365 .section ".tdata","awT",@progbits
3373 lg %r1,foo@GOTNTPOFF(%r12)
3374 larl %r1,foo@INDNTPOFF
3375 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
3376 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
3379 tls_as_opt="-m64 -Aesame --fatal-warnings"
3381 sh-*-* | sh[123456789lbe]*-*-*)
3383 .section ".tdata","awT",@progbits
3393 tls_as_opt=--fatal-warnings
3397 sparc*-sun-solaris2.*)
3404 if test x$on_solaris = xyes && test x$gas_flag = xno; then
3406 .section ".tdata",#alloc,#write,#tls'
3411 .section ".tdata","awT",@progbits'
3414 tls_as_opt="-32 --fatal-warnings"
3416 conftest_s="$conftest_s
3419 sethi %tgd_hi22(foo), %o0
3420 add %o0, %tgd_lo10(foo), %o1
3421 add %l7, %o1, %o0, %tgd_add(foo)
3422 call __tls_get_addr, %tgd_call(foo)
3423 sethi %tldm_hi22(foo), %l1
3424 add %l1, %tldm_lo10(foo), %l2
3425 add %l7, %l2, %o0, %tldm_add(foo)
3426 call __tls_get_addr, %tldm_call(foo)
3427 sethi %tldo_hix22(foo), %l3
3428 xor %l3, %tldo_lox10(foo), %l4
3429 add %o0, %l4, %l5, %tldo_add(foo)
3430 sethi %tie_hi22(foo), %o3
3431 add %o3, %tie_lo10(foo), %o3
3432 ld [%l7 + %o3], %o2, %tie_ld(foo)
3433 add %g7, %o2, %o4, %tie_add(foo)
3434 sethi %tle_hix22(foo), %l1
3435 xor %l1, %tle_lox10(foo), %o5
3436 ld [%g7 + %o5], %o1"
3440 .section ".tdata","awT",@progbits
3443 addli r0, zero, tls_gd(foo)
3444 auli r0, zero, tls_gd_ha16(foo)
3445 addli r0, r0, tls_gd_lo16(foo)
3447 addli r0, zero, tls_ie(foo)
3448 auli r0, r0, tls_ie_ha16(foo)
3449 addli r0, r0, tls_ie_lo16(foo)'
3452 tls_as_opt="--fatal-warnings"
3456 .section ".tdata","awT",@progbits
3459 shl16insli r0, zero, hw0_last_tls_gd(foo)
3460 shl16insli r0, zero, hw1_last_tls_gd(foo)
3461 shl16insli r0, r0, hw0_tls_gd(foo)
3463 shl16insli r0, zero, hw1_last_tls_ie(foo)
3464 shl16insli r0, r0, hw0_tls_ie(foo)'
3467 tls_as_opt="--fatal-warnings"
3471 .section ".tdata","awT",@progbits
3474 movi a8, foo@TLSFUNC
3475 movi a10, foo@TLSARG
3476 callx8.tls a8, foo@TLSCALL'
3483 if test "x$enable_tls" = xno ; then
3484 : # TLS explicitly disabled.
3485 elif test "x$enable_tls" = xyes ; then
3486 set_have_as_tls=yes # TLS explicitly enabled.
3487 elif test -z "$tls_first_major"; then
3488 : # If we don't have a check, assume no support.
3490 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
3491 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
3492 [set_have_as_tls=yes])
3494 if test $set_have_as_tls = yes ; then
3495 AC_DEFINE(HAVE_AS_TLS, 1,
3496 [Define if your assembler and linker support thread-local storage.])
3499 # Target-specific assembler checks.
3501 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
3502 gcc_cv_ld_static_dynamic=no
3503 gcc_cv_ld_static_option='-Bstatic'
3504 gcc_cv_ld_dynamic_option='-Bdynamic'
3505 if test $in_tree_ld = yes ; then
3506 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then
3507 gcc_cv_ld_static_dynamic=yes
3509 elif test x$gcc_cv_ld != x; then
3510 # Check if linker supports -Bstatic/-Bdynamic option
3511 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
3512 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
3513 gcc_cv_ld_static_dynamic=yes
3516 # AIX ld uses -b flags
3517 *-*-aix4.[[23]]* | *-*-aix[[5-9]]*)
3518 gcc_cv_ld_static_dynamic=yes
3519 gcc_cv_ld_static_option="-bstatic"
3520 gcc_cv_ld_dynamic_option="-bdynamic"
3522 # HP-UX ld uses -a flags to select between shared and archive.
3524 if test x"$gnu_ld" = xno; then
3525 gcc_cv_ld_static_dynamic=yes
3526 gcc_cv_ld_static_option="-aarchive_shared"
3527 gcc_cv_ld_dynamic_option="-adefault"
3530 # Solaris 2 ld always supports -Bstatic/-Bdynamic.
3532 gcc_cv_ld_static_dynamic=yes
3537 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
3538 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
3539 [Define if your linker supports -Bstatic/-Bdynamic or equivalent options.])
3540 AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option",
3541 [Define to the linker option to disable use of shared objects.])
3542 AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option",
3543 [Define to the linker option to enable use of shared objects.])
3545 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
3547 if test x"$demangler_in_ld" = xyes; then
3548 AC_MSG_CHECKING(linker --demangle support)
3549 gcc_cv_ld_demangle=no
3550 if test $in_tree_ld = yes; then
3551 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
3552 gcc_cv_ld_demangle=yes
3554 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
3555 # Check if the GNU linker supports --demangle option
3556 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
3557 gcc_cv_ld_demangle=yes
3560 if test x"$gcc_cv_ld_demangle" = xyes; then
3561 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
3562 [Define if your linker supports --demangle option.])
3564 AC_MSG_RESULT($gcc_cv_ld_demangle)
3567 AC_MSG_CHECKING(linker plugin support)
3569 if test -f liblto_plugin.la; then
3570 save_ld_ver="$ld_ver"
3571 save_ld_vers_major="$ld_vers_major"
3572 save_ld_vers_minor="$ld_vers_minor"
3573 save_ld_is_gold="$ld_is_gold"
3577 if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
3579 # FIXME: ld_is_gold?
3580 ld_vers_major="$gcc_cv_gld_major_version"
3581 ld_vers_minor="$gcc_cv_gld_minor_version"
3583 # Determine plugin linker version.
3584 # FIXME: Partial duplicate from above, generalize.
3586 ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q`
3587 if echo "$ld_ver" | grep GNU > /dev/null; then
3588 if echo "$ld_ver" | grep "GNU gold" > /dev/null; then
3590 ld_vers=`echo $ld_ver | sed -n \
3591 -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
3593 ld_vers=`echo $ld_ver | sed -n \
3594 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
3596 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
3597 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
3602 # Determine plugin support.
3603 if echo "$ld_ver" | grep GNU > /dev/null; then
3604 # Require GNU ld or gold 2.21+ for plugin support by default.
3605 if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then
3607 # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20.
3608 elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then
3613 ld_ver="$save_ld_ver"
3614 ld_vers_major="$save_ld_vers_major"
3615 ld_vers_minor="$save_ld_vers_minor"
3616 ld_is_gold="$save_ld_is_gold"
3618 AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin,
3619 [Define to the level of your linker's plugin support.])
3620 AC_MSG_RESULT($gcc_cv_lto_plugin)
3624 gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,,
3625 [-mabi=lp64], [.text],,,)
3626 if test x$gcc_cv_as_aarch64_mabi = xyes; then
3627 AC_DEFINE(HAVE_AS_MABI_OPTION, 1,
3628 [Define if your assembler supports the -mabi option.])
3630 if test x$with_abi = xilp32; then
3631 AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\
3632 Upgrade the Assembler.])
3634 if test x"$with_multilib_list" = xdefault; then
3635 TM_MULTILIB_CONFIG=lp64
3637 aarch64_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'`
3638 for aarch64_multilib in ${aarch64_multilibs}; do
3639 case ${aarch64_multilib} in
3641 AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\
3642 Upgrade the Assembler.])
3650 # Check if we have binutils support for relocations types needed by -fpic
3651 gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,,,
3654 ldr x0, [[x2, #:gotpage_lo15:globalsym]]
3655 ],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1,
3656 [Define if your assembler supports relocs needed by -fpic.])])
3657 # Enable default workaround for AArch64 Cortex-A53 erratum 835769.
3658 AC_ARG_ENABLE(fix-cortex-a53-835769,
3660 AS_HELP_STRING([--enable-fix-cortex-a53-835769],
3661 [enable workaround for AArch64 Cortex-A53 erratum 835769 by default])
3662 AS_HELP_STRING([--disable-fix-cortex-a53-835769],
3663 [disable workaround for AArch64 Cortex-A53 erratum 835769 by default])
3668 tm_defines="${tm_defines} TARGET_FIX_ERR_A53_835769_DEFAULT=1"
3673 AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-835769.\
3674 Valid choices are 'yes' and 'no'.])
3680 # Enable default workaround for AArch64 Cortex-A53 erratum 843419.
3681 AC_ARG_ENABLE(fix-cortex-a53-843419,
3683 AS_HELP_STRING([--enable-fix-cortex-a53-843419],
3684 [enable workaround for AArch64 Cortex-A53 erratum 843419 by default])
3685 AS_HELP_STRING([--disable-fix-cortex-a53-843419],
3686 [disable workaround for AArch64 Cortex-A53 erratum 843419 by default])
3691 tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1"
3696 AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\
3697 Valid choices are 'yes' and 'no'.])
3705 # All TARGET_ABI_OSF targets.
3706 alpha*-*-linux* | alpha*-*-*bsd*)
3707 gcc_GAS_CHECK_FEATURE([explicit relocation support],
3708 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
3711 extbl $3, $2, $3 !lituse_bytoff!1
3712 ldq $2, a($29) !literal!1
3713 ldq $4, b($29) !literal!2
3714 ldq_u $3, 0($2) !lituse_base!1
3715 ldq $27, f($29) !literal!5
3716 jsr $26, ($27), f !lituse_jsr!5
3717 ldah $29, 0($26) !gpdisp!3
3718 lda $0, c($29) !gprel
3719 ldah $1, d($29) !gprelhigh
3720 lda $1, d($1) !gprellow
3721 lda $29, 0($29) !gpdisp!3],,
3722 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
3723 [Define if your assembler supports explicit relocations.])])
3724 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
3725 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
3728 ldq $27, a($29) !literal!1
3729 jsr $26, ($27), a !lituse_jsrdirect!1],,
3730 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
3731 [Define if your assembler supports the lituse_jsrdirect relocation.])])
3735 gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax,,
3736 [--mlink-relax], [.text],,
3737 [AC_DEFINE(HAVE_AS_AVR_MLINK_RELAX_OPTION, 1,
3738 [Define if your avr assembler supports --mlink-relax option.])])
3740 gcc_GAS_CHECK_FEATURE([-mrmw option], gcc_cv_as_avr_mrmw,,
3742 [AC_DEFINE(HAVE_AS_AVR_MRMW_OPTION, 1,
3743 [Define if your avr assembler supports -mrmw option.])])
3747 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
3748 gcc_cv_as_cris_no_mul_bug,[2,15,91],
3749 [-no-mul-bug-abort], [.text],,
3750 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
3751 [Define if your assembler supports the -no-mul-bug-abort option.])])
3755 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
3756 [.register %g2, #scratch],,
3757 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
3758 [Define if your assembler supports .register.])])
3760 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
3762 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
3763 [Define if your assembler supports -relax option.])])
3765 gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs],
3766 gcc_cv_as_sparc_gotdata_op,,
3773 sethi %gdop_hix22(foo), %g1
3774 xor %g1, %gdop_lox10(foo), %g1
3775 ld [[%l7 + %g1]], %g2, %gdop(foo)],
3776 [if test x$gcc_cv_ld != x \
3777 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
3778 if test x$gcc_cv_objdump != x; then
3779 if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \
3780 | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then
3781 gcc_cv_as_sparc_gotdata_op=no
3783 gcc_cv_as_sparc_gotdata_op=yes
3788 [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1,
3789 [Define if your assembler and linker support GOTDATA_OP relocs.])])
3791 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
3792 gcc_cv_as_sparc_ua_pcrel,,
3800 .uaword %r_disp32(foo)],
3801 [if test x$gcc_cv_ld != x \
3802 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
3803 gcc_cv_as_sparc_ua_pcrel=yes
3806 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
3807 [Define if your assembler and linker support unaligned PC relative relocs.])
3809 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
3810 gcc_cv_as_sparc_ua_pcrel_hidden,,
3815 .uaword %r_disp32(foo)
3816 .byte 0x32, 0x33, 0x34
3821 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
3822 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
3823 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
3824 | grep ' 31000000 07323334' > /dev/null 2>&1; then
3825 if $gcc_cv_objdump -R conftest 2> /dev/null \
3826 | grep 'DISP32' > /dev/null 2>&1; then
3829 gcc_cv_as_sparc_ua_pcrel_hidden=yes
3833 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
3834 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
3835 ]) # unaligned pcrel relocs
3837 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
3838 gcc_cv_as_sparc_offsetable_lo10,,
3841 or %g1, %lo(ab) + 12, %g1
3842 or %g1, %lo(ab + 12), %g1],
3843 [if test x$gcc_cv_objdump != x \
3844 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
3845 | grep ' 82106000 82106000' > /dev/null 2>&1; then
3846 gcc_cv_as_sparc_offsetable_lo10=yes
3848 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
3849 [Define if your assembler supports offsetable %lo().])])
3851 gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions],
3852 gcc_cv_as_sparc_fmaf,,
3855 .register %g2, #scratch
3856 .register %g3, #scratch
3858 fmaddd %f0, %f2, %f4, %f6
3859 addxccc %g1, %g2, %g3
3860 fsrl32 %f2, %f4, %f8
3861 fnaddd %f10, %f12, %f14],,
3862 [AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1,
3863 [Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])])
3865 gcc_GAS_CHECK_FEATURE([SPARC4 instructions],
3866 gcc_cv_as_sparc_sparc4,,
3869 .register %g2, #scratch
3870 .register %g3, #scratch
3873 1: cwbneg %g2, %g3, 1f
3876 aes_kexpand0 %f4, %f6, %f8
3877 des_round %f38, %f40, %f42, %f44
3878 camellia_f %f54, %f56, %f58, %f60
3879 kasumi_fi_xor %f46, %f48, %f50, %f52],,
3880 [AC_DEFINE(HAVE_AS_SPARC4, 1,
3881 [Define if your assembler supports SPARC4 instructions.])])
3883 gcc_GAS_CHECK_FEATURE([LEON instructions],
3884 gcc_cv_as_sparc_leon,,
3887 .register %g2, #scratch
3888 .register %g3, #scratch
3892 casa [[%g2]] 0xb, %g3, %g1],,
3893 [AC_DEFINE(HAVE_AS_LEON, 1,
3894 [Define if your assembler supports LEON instructions.])])
3898 i[34567]86-*-* | x86_64-*-*)
3902 # Full C++ conformance when using a shared libstdc++-v3 requires some
3903 # support from the Cygwin DLL, which in more recent versions exports
3904 # wrappers to aid in interposing and redirecting operators new, delete,
3905 # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we
3906 # are configuring for a version of Cygwin that exports the wrappers.
3907 if test x$host = x$target && test x$host_cpu = xi686; then
3908 AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no])
3910 # Can't check presence of libc functions during cross-compile, so
3911 # we just have to assume we're building for an up-to-date target.
3912 gcc_ac_cygwin_dll_wrappers=yes
3914 AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS,
3915 [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`],
3916 [Define if you want to generate code by default that assumes that the
3917 Cygwin DLL exports wrappers to support libstdc++ function replacement.])
3920 cygwin* | pe | mingw32* | interix*)
3921 # Recent binutils allows the three-operand form of ".comm" on PE. This
3922 # definition is used unconditionally to initialise the default state of
3923 # the target option variable that governs usage of the feature.
3924 gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align,
3925 [2,19,52],,[.comm foo,1,32])
3926 AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM,
3927 [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`],
3928 [Define if your assembler supports specifying the alignment
3929 of objects allocated using the GAS .comm command.])
3930 # Used for DWARF 2 in PE
3931 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
3932 gcc_cv_as_ix86_pe_secrel32,
3938 [if test x$gcc_cv_ld != x \
3939 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
3940 gcc_cv_as_ix86_pe_secrel32=yes
3943 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
3944 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
3945 # Test if the assembler supports the extended form of the .section
3946 # directive that specifies section alignment. LTO support uses this,
3947 # but normally only after installation, so we warn but don't fail the
3948 # configure if LTO is enabled but the assembler does not support it.
3949 gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align,
3950 [2,20,1],-fatal-warnings,[.section lto_test,"dr0"])
3951 if test x$gcc_cv_as_section_has_align != xyes; then
3952 case ",$enable_languages," in
3954 AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.])
3961 # Test if the assembler supports the section flag 'e' for specifying
3962 # an excluded section.
3963 gcc_GAS_CHECK_FEATURE([.section with e], gcc_cv_as_section_has_e,
3964 [2,22,51], [--fatal-warnings],
3967 AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE,
3968 [`if test $gcc_cv_as_section_has_e = yes; then echo 1; else echo 0; fi`],
3969 [Define if your assembler supports specifying the section flag e.])
3971 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
3972 gcc_cv_as_ix86_filds,,,
3973 [filds (%ebp); fists (%ebp)],,
3974 [AC_DEFINE(HAVE_AS_IX86_FILDS, 1,
3975 [Define if your assembler uses filds and fists mnemonics.])])
3977 gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics],
3978 gcc_cv_as_ix86_fildq,,,
3979 [fildq (%ebp); fistpq (%ebp)],,
3980 [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1,
3981 [Define if your assembler uses fildq and fistq mnemonics.])])
3983 gcc_GAS_CHECK_FEATURE([cmov syntax],
3984 gcc_cv_as_ix86_cmov_sun_syntax,,,
3985 [cmovl.l %edx, %eax],,
3986 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
3987 [Define if your assembler supports the Sun syntax for cmov.])])
3989 gcc_GAS_CHECK_FEATURE([ffreep mnemonic],
3990 gcc_cv_as_ix86_ffreep,,,
3992 [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
3993 [Define if your assembler supports the ffreep mnemonic.])])
3995 gcc_GAS_CHECK_FEATURE([.quad directive],
3996 gcc_cv_as_ix86_quad,,,
3998 [AC_DEFINE(HAVE_AS_IX86_QUAD, 1,
3999 [Define if your assembler supports the .quad directive.])])
4001 gcc_GAS_CHECK_FEATURE([sahf mnemonic],
4002 gcc_cv_as_ix86_sahf,,,
4005 [AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
4006 [Define if your assembler supports the sahf mnemonic in 64bit mode.])])
4008 gcc_GAS_CHECK_FEATURE([interunit movq mnemonic],
4009 gcc_cv_as_ix86_interunit_movq,,,
4013 AC_DEFINE_UNQUOTED(HAVE_AS_IX86_INTERUNIT_MOVQ,
4014 [`if test $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`],
4015 [Define if your assembler supports interunit movq mnemonic.])
4017 gcc_GAS_CHECK_FEATURE([hle prefixes],
4018 gcc_cv_as_ix86_hle,,,
4019 [lock xacquire cmpxchg %esi, (%ecx)],,
4020 [AC_DEFINE(HAVE_AS_IX86_HLE, 1,
4021 [Define if your assembler supports HLE prefixes.])])
4023 gcc_GAS_CHECK_FEATURE([swap suffix],
4024 gcc_cv_as_ix86_swap,,,
4025 [movl.s %esp, %ebp],,
4026 [AC_DEFINE(HAVE_AS_IX86_SWAP, 1,
4027 [Define if your assembler supports the swap suffix.])])
4029 gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
4030 gcc_cv_as_ix86_diff_sect_delta,,,
4038 [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
4039 [Define if your assembler supports the subtraction of symbols in different sections.])])
4041 # These two are used unconditionally by i386.[ch]; it is to be defined
4042 # to 1 if the feature is present, 0 otherwise.
4043 as_ix86_gotoff_in_data_opt=
4044 if test x$gas = xyes; then
4045 as_ix86_gotoff_in_data_opt="--32"
4047 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
4048 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],
4049 [$as_ix86_gotoff_in_data_opt],
4055 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
4056 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
4057 [Define true if the assembler supports '.long foo@GOTOFF'.])
4059 gcc_GAS_CHECK_FEATURE([rep and lock prefix],
4060 gcc_cv_as_ix86_rep_lock_prefix,,,
4066 lock addl %edi, (%eax,%esi)
4067 lock orl $0, (%esp)],,
4068 [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1,
4069 [Define if the assembler supports 'rep <insn>, lock <insn>'.])])
4071 gcc_GAS_CHECK_FEATURE([ud2 mnemonic],
4072 gcc_cv_as_ix86_ud2,,,
4074 [AC_DEFINE(HAVE_AS_IX86_UD2, 1,
4075 [Define if your assembler supports the 'ud2' mnemonic.])])
4077 gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc],
4078 gcc_cv_as_ix86_tlsgdplt,,,
4079 [call tls_gd@tlsgdplt],
4080 [if test x$gcc_cv_ld != x \
4081 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
4082 gcc_cv_as_ix86_tlsgdplt=yes
4085 [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1,
4086 [Define if your assembler and linker support @tlsgdplt.])])
4089 .section .tdata,"aw'$tls_section_flag'",@progbits
4091 .section .text,"ax",@progbits
4092 call tls_ld@tlsldmplt'
4093 gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc],
4094 gcc_cv_as_ix86_tlsldmplt,,,
4096 [if test x$gcc_cv_ld != x \
4097 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
4098 gcc_cv_as_ix86_tlsldmplt=yes
4101 AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT,
4102 [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`],
4103 [Define to 1 if your assembler and linker support @tlsldmplt.])
4105 # Enforce 32-bit output with gas and gld.
4106 if test x$gas = xyes; then
4107 as_ix86_tls_ldm_opt="--32"
4109 if echo "$ld_ver" | grep GNU > /dev/null; then
4110 if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then
4111 ld_ix86_tls_ldm_opt="-melf_i386_sol2"
4113 ld_ix86_tls_ldm_opt="-melf_i386"
4117 .section .text,"ax",@progbits
4119 .type _start, @function
4121 leal value@tlsldm(%ebx), %eax
4122 call ___tls_get_addr@plt
4124 .section .tdata,"aw'$tls_section_flag'",@progbits
4125 .type value, @object
4127 gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc],
4128 gcc_cv_as_ix86_tlsldm,,
4129 [$as_ix86_tls_ldm_opt],
4131 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
4132 && $gcc_cv_ld $ld_ix86_tls_ldm_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then
4133 if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \
4134 || dis conftest 2>/dev/null | grep nop > /dev/null; then
4135 gcc_cv_as_ix86_tlsldm=yes
4139 AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM,
4140 [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`],
4141 [Define to 1 if your assembler and linker support @tlsldm.])
4146 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
4147 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
4149 addl r15 = @ltoffx(x#), gp
4151 ld8.mov r16 = [[r15]], x#],,
4152 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
4153 [Define if your assembler supports ltoffx and ldxmov relocations.])])
4159 *-*-aix*) conftest_s=' .machine "pwr5"
4163 gcc_GAS_CHECK_FEATURE([.machine directive support],
4164 gcc_cv_as_machine_directive,,,
4165 [ .machine ppc7400])
4166 if test x$gcc_cv_as_machine_directive != xyes; then
4167 echo "*** This target requires an assembler supporting \".machine\"" >&2
4168 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
4169 test x$build = x$target && exit 1
4173 *) conftest_s=' .machine power4
4178 gcc_GAS_CHECK_FEATURE([mfcr field support],
4179 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
4181 [AC_DEFINE(HAVE_AS_MFCRF, 1,
4182 [Define if your assembler supports mfcr field.])])
4185 *-*-aix*) conftest_s=' .machine "pwr5"
4188 *) conftest_s=' .machine power5
4193 gcc_GAS_CHECK_FEATURE([popcntb support],
4194 gcc_cv_as_powerpc_popcntb, [2,17,0],,
4196 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
4197 [Define if your assembler supports popcntb field.])])
4200 *-*-aix*) conftest_s=' .machine "pwr5x"
4203 *) conftest_s=' .machine power5
4208 gcc_GAS_CHECK_FEATURE([fp round support],
4209 gcc_cv_as_powerpc_fprnd, [2,17,0],,
4211 [AC_DEFINE(HAVE_AS_FPRND, 1,
4212 [Define if your assembler supports fprnd.])])
4215 *-*-aix*) conftest_s=' .machine "pwr6"
4218 *) conftest_s=' .machine power6
4223 gcc_GAS_CHECK_FEATURE([move fp gpr support],
4224 gcc_cv_as_powerpc_mfpgpr, [2,19,2],,
4226 [AC_DEFINE(HAVE_AS_MFPGPR, 1,
4227 [Define if your assembler supports mffgpr and mftgpr.])])
4230 *-*-aix*) conftest_s=' .csect .text[[PR]]
4232 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
4236 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
4237 *) conftest_s=' .text
4239 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
4242 gcc_GAS_CHECK_FEATURE([rel16 relocs],
4243 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
4245 [AC_DEFINE(HAVE_AS_REL16, 1,
4246 [Define if your assembler supports R_PPC_REL16 relocs.])])
4249 *-*-aix*) conftest_s=' .machine "pwr6"
4252 *) conftest_s=' .machine power6
4257 gcc_GAS_CHECK_FEATURE([compare bytes support],
4258 gcc_cv_as_powerpc_cmpb, [2,19,2], -a32,
4260 [AC_DEFINE(HAVE_AS_CMPB, 1,
4261 [Define if your assembler supports cmpb.])])
4264 *-*-aix*) conftest_s=' .machine "pwr6"
4267 *) conftest_s=' .machine power6
4272 gcc_GAS_CHECK_FEATURE([decimal float support],
4273 gcc_cv_as_powerpc_dfp, [2,19,2], -a32,
4275 [AC_DEFINE(HAVE_AS_DFP, 1,
4276 [Define if your assembler supports DFP instructions.])])
4279 *-*-aix*) conftest_s=' .machine "pwr7"
4282 *) conftest_s=' .machine power7
4287 gcc_GAS_CHECK_FEATURE([vector-scalar support],
4288 gcc_cv_as_powerpc_vsx, [2,19,2], -a32,
4290 [AC_DEFINE(HAVE_AS_VSX, 1,
4291 [Define if your assembler supports VSX instructions.])])
4294 *-*-aix*) conftest_s=' .machine "pwr7"
4297 *) conftest_s=' .machine power7
4302 gcc_GAS_CHECK_FEATURE([popcntd support],
4303 gcc_cv_as_powerpc_popcntd, [2,19,2], -a32,
4305 [AC_DEFINE(HAVE_AS_POPCNTD, 1,
4306 [Define if your assembler supports POPCNTD instructions.])])
4309 *-*-aix*) conftest_s=' .machine "pwr8"
4310 .csect .text[[PR]]';;
4311 *) conftest_s=' .machine power8
4315 gcc_GAS_CHECK_FEATURE([power8 support],
4316 gcc_cv_as_powerpc_power8, [2,19,2], -a32,
4318 [AC_DEFINE(HAVE_AS_POWER8, 1,
4319 [Define if your assembler supports POWER8 instructions.])])
4322 *-*-aix*) conftest_s=' .machine "pwr9"
4323 .csect .text[[PR]]';;
4324 *) conftest_s=' .machine power9
4328 gcc_GAS_CHECK_FEATURE([power9 support],
4329 gcc_cv_as_powerpc_power9, [2,19,2], -a32,
4331 [AC_DEFINE(HAVE_AS_POWER9, 1,
4332 [Define if your assembler supports POWER9 instructions.])])
4335 *-*-aix*) conftest_s=' .csect .text[[PR]]
4337 *) conftest_s=' .text
4341 gcc_GAS_CHECK_FEATURE([lwsync support],
4342 gcc_cv_as_powerpc_lwsync, [2,19,2], -a32,
4344 [AC_DEFINE(HAVE_AS_LWSYNC, 1,
4345 [Define if your assembler supports LWSYNC instructions.])])
4348 *-*-aix*) conftest_s=' .machine "476"
4351 *) conftest_s=' .machine "476"
4356 gcc_GAS_CHECK_FEATURE([data cache invalidate support],
4357 gcc_cv_as_powerpc_dci, [9,99,0], -a32,
4359 [AC_DEFINE(HAVE_AS_DCI, 1,
4360 [Define if your assembler supports the DCI/ICI instructions.])])
4362 gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
4363 gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
4364 [.gnu_attribute 4,1],,
4365 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
4366 [Define if your assembler supports .gnu_attribute.])])
4368 gcc_GAS_CHECK_FEATURE([tls marker support],
4369 gcc_cv_as_powerpc_tls_markers, [2,20,0],,
4370 [ bl __tls_get_addr(x@tlsgd)],,
4371 [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1,
4372 [Define if your assembler supports arg info for __tls_get_addr.])])
4374 gcc_GAS_CHECK_FEATURE([prologue entry point marker support],
4375 gcc_cv_as_powerpc_entry_markers, [2,26,0],-a64 --fatal-warnings,
4376 [ .reloc .,R_PPC64_ENTRY; nop],,
4377 [AC_DEFINE(HAVE_AS_ENTRY_MARKERS, 1,
4378 [Define if your assembler supports the R_PPC64_ENTRY relocation.])])
4382 gcc_GAS_CHECK_FEATURE([.ref support],
4383 gcc_cv_as_aix_ref, [2,21,0],,
4384 [ .csect stuff[[rw]]
4390 [AC_DEFINE(HAVE_AS_REF, 1,
4391 [Define if your assembler supports .ref])])
4397 gcc_GAS_CHECK_FEATURE([dwarf location lists section support],
4398 gcc_cv_as_aix_dwloc, [2,21,0],,
4401 [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1,
4402 [Define if your assembler supports .dwsect 0xB0000])])
4408 gcc_GAS_CHECK_FEATURE([explicit relocation support],
4409 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
4410 [ lw $4,%gp_rel(foo)($4)],,
4411 [if test x$target_cpu_default = x
4412 then target_cpu_default=MASK_EXPLICIT_RELOCS
4413 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
4416 gcc_GAS_CHECK_FEATURE([-mno-shared support],
4417 gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
4418 [AC_DEFINE(HAVE_AS_NO_SHARED, 1,
4419 [Define if the assembler understands -mno-shared.])])
4421 gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
4422 gcc_cv_as_mips_gnu_attribute, [2,18,0],,
4423 [.gnu_attribute 4,1],,
4424 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
4425 [Define if your assembler supports .gnu_attribute.])])
4427 gcc_GAS_CHECK_FEATURE([.module support],
4428 gcc_cv_as_mips_dot_module,,[-32],
4431 [AC_DEFINE(HAVE_AS_DOT_MODULE, 1,
4432 [Define if your assembler supports .module.])])
4433 if test x$gcc_cv_as_mips_dot_module = xno \
4434 && test x$with_fp_32 != x; then
4436 [Requesting --with-fp-32= requires assembler support for .module.])
4439 gcc_GAS_CHECK_FEATURE([.micromips support],
4440 gcc_cv_as_micromips_support,,[--fatal-warnings],
4442 [AC_DEFINE(HAVE_GAS_MICROMIPS, 1,
4443 [Define if your assembler supports the .set micromips directive])])
4445 gcc_GAS_CHECK_FEATURE([.dtprelword support],
4446 gcc_cv_as_mips_dtprelword, [2,18,0],,
4447 [.section .tdata,"awT",@progbits
4451 .dtprelword x+0x8000],,
4452 [AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
4453 [Define if your assembler supports .dtprelword.])])
4455 gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support],
4456 gcc_cv_as_mips_dspr1_mult,,,
4466 [AC_DEFINE(HAVE_AS_DSPR1_MULT, 1,
4467 [Define if your assembler supports DSPR1 mult.])])
4469 AC_MSG_CHECKING(assembler and linker for explicit JALR relocation)
4470 gcc_cv_as_ld_jalr_reloc=no
4471 if test $gcc_cv_as_mips_explicit_relocs = yes; then
4472 if test $in_tree_ld = yes ; then
4473 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \
4474 && test $in_tree_ld_is_elf = yes; then
4475 gcc_cv_as_ld_jalr_reloc=yes
4477 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then
4478 echo ' .ent x' > conftest.s
4479 echo 'x: lw $2,%got_disp(y)($3)' >> conftest.s
4480 echo ' lw $25,%call16(y)($28)' >> conftest.s
4481 echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s
4482 echo '1: jalr $25' >> conftest.s
4483 echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s
4484 echo '1: jalr $25' >> conftest.s
4485 echo ' .end x' >> conftest.s
4486 if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \
4487 && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then
4488 if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \
4489 && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then
4490 gcc_cv_as_ld_jalr_reloc=yes
4496 if test $gcc_cv_as_ld_jalr_reloc = yes; then
4497 if test x$target_cpu_default = x; then
4498 target_cpu_default=MASK_RELAX_PIC_CALLS
4500 target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS"
4503 AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc)
4505 AC_CACHE_CHECK([linker for .eh_frame personality relaxation],
4506 [gcc_cv_ld_mips_personality_relaxation],
4507 [gcc_cv_ld_mips_personality_relaxation=no
4508 if test $in_tree_ld = yes ; then
4509 if test "$gcc_cv_gld_major_version" -eq 2 \
4510 -a "$gcc_cv_gld_minor_version" -ge 21 \
4511 -o "$gcc_cv_gld_major_version" -gt 2; then
4512 gcc_cv_ld_mips_personality_relaxation=yes
4514 elif test x$gcc_cv_as != x \
4515 -a x$gcc_cv_ld != x \
4516 -a x$gcc_cv_readelf != x ; then
4517 cat > conftest.s <<EOF
4519 .cfi_personality 0x80,indirect_ptr
4526 .section .data,"aw",@progbits
4530 if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \
4531 && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then
4532 if $gcc_cv_readelf -d conftest 2>&1 \
4533 | grep TEXTREL > /dev/null 2>&1; then
4535 elif $gcc_cv_readelf --relocs conftest 2>&1 \
4536 | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then
4539 gcc_cv_ld_mips_personality_relaxation=yes
4543 rm -f conftest.s conftest.o conftest])
4544 if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then
4545 AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1,
4546 [Define if your linker can relax absolute .eh_frame personality
4547 pointers into PC-relative form.])
4550 gcc_GAS_CHECK_FEATURE([-mnan= support],
4551 gcc_cv_as_mips_nan,,
4553 [AC_DEFINE(HAVE_AS_NAN, 1,
4554 [Define if the assembler understands -mnan=.])])
4555 if test x$gcc_cv_as_mips_nan = xno \
4556 && test x$with_nan != x; then
4558 [Requesting --with-nan= requires assembler support for -mnan=])
4562 gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
4563 gcc_cv_as_s390_gnu_attribute, [2,18,0],,
4564 [.gnu_attribute 8,1],,
4565 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
4566 [Define if your assembler supports .gnu_attribute.])])
4570 # Mips and HP-UX need the GNU assembler.
4571 # Linux on IA64 might be able to use the Intel assembler.
4574 mips*-*-* | *-*-hpux* )
4575 if test x$gas_flag = xyes \
4576 || test x"$host" != x"$build" \
4577 || test ! -x "$gcc_cv_as" \
4578 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
4581 echo "*** This configuration requires the GNU assembler" >&2
4587 # ??? Not all targets support dwarf2 debug_line, even within a version
4588 # of gas. Moreover, we need to emit a valid instruction to trigger any
4589 # info to the output file. So, as supported targets are added to gas 2.11,
4590 # add some instruction here to (also) show we expect this might work.
4591 # ??? Once 2.11 is released, probably need to add first known working
4592 # version to the per-target configury.
4594 aarch64 | alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze \
4595 | mips | nios2 | pa | rs6000 | score | sparc | spu | tilegx | tilepro \
4596 | visium | xstormy16 | xtensa)
4606 if test x"$insn" != x; then
4608 .file 1 \"conftest.s\"
4611 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
4612 gcc_cv_as_dwarf2_debug_line,
4613 [elf,2,11,0],, [$conftest_s],
4614 [if test x$gcc_cv_objdump != x \
4615 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
4616 | grep debug_line > /dev/null 2>&1; then
4617 gcc_cv_as_dwarf2_debug_line=yes
4620 # The .debug_line file table must be in the exact order that
4621 # we specified the files, since these indices are also used
4622 # by DW_AT_decl_file. Approximate this test by testing if
4623 # the assembler bitches if the same index is assigned twice.
4624 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
4625 gcc_cv_as_dwarf2_file_buggy,,,
4629 if test $gcc_cv_as_dwarf2_debug_line = yes \
4630 && test $gcc_cv_as_dwarf2_file_buggy = no; then
4631 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
4632 [Define if your assembler supports dwarf2 .file/.loc directives,
4633 and preserves file table indices exactly as given.])
4636 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
4637 gcc_cv_as_gdwarf2_flag,
4638 [elf,2,11,0], [--gdwarf2], [$insn],,
4639 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
4640 [Define if your assembler supports the --gdwarf2 option.])])
4642 gcc_GAS_CHECK_FEATURE([--gstabs option],
4643 gcc_cv_as_gstabs_flag,
4644 [elf,2,11,0], [--gstabs], [$insn],,
4645 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
4646 [Define if your assembler supports the --gstabs option.])])
4648 gcc_GAS_CHECK_FEATURE([--debug-prefix-map option],
4649 gcc_cv_as_debug_prefix_map_flag,
4650 [2,18,0], [--debug-prefix-map /a=/b], [$insn],,
4651 [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1,
4652 [Define if your assembler supports the --debug-prefix-map option.])])
4655 gcc_GAS_CHECK_FEATURE([compressed debug sections],
4656 gcc_cv_as_compress_debug,,[--compress-debug-sections],,
4657 [# gas compiled without zlib cannot compress debug sections and warns
4658 # about it, but still exits successfully. So check for this, too.
4659 if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null
4661 gcc_cv_as_compress_debug=0
4662 elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1
4664 gcc_cv_as_compress_debug=1
4665 gcc_cv_as_compress_debug_option="--compress-debug-sections"
4666 gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections"
4668 gcc_cv_as_compress_debug=0
4669 # FIXME: Future gas versions will support ELF gABI style via
4670 # --compress-debug-sections[=type].
4672 AC_DEFINE_UNQUOTED(HAVE_AS_COMPRESS_DEBUG, $gcc_cv_as_compress_debug,
4673 [Define to the level of your assembler's compressed debug section support.])
4674 AC_DEFINE_UNQUOTED(AS_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_compress_debug_option",
4675 [Define to the assembler option to enable compressed debug sections.])
4676 AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_no_compress_debug_option",
4677 [Define to the assembler option to disable compressed debug sections.])
4679 gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment,
4682 [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1,
4683 [Define if your assembler supports .lcomm with an alignment field.])])
4685 if test x$with_sysroot = x && test x$host = x$target \
4686 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
4687 && test "$prefix" != "NONE"; then
4688 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
4689 [Define to PREFIX/include if cpp should also search that directory.])
4692 # Determine the version of glibc, if any, used on the target.
4693 AC_MSG_CHECKING([for target glibc version])
4694 AC_ARG_WITH([glibc-version],
4695 [AS_HELP_STRING([--with-glibc-version=M.N],
4696 [assume GCC used with glibc version M.N or later])], [
4697 if [echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$']; then
4698 glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'`
4699 glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'`
4701 AC_MSG_ERROR([option --with-glibc-version requires a version number M.N])
4703 glibc_version_major=0
4704 glibc_version_minor=0
4705 [if test -f $target_header_dir/features.h \
4706 && glibc_version_major_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+[0-9]' $target_header_dir/features.h` \
4707 && glibc_version_minor_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+[0-9]' $target_header_dir/features.h`; then
4708 glibc_version_major=`echo "$glibc_version_major_define" | sed -e 's/.*__GLIBC__[ ]*//'`
4709 glibc_version_minor=`echo "$glibc_version_minor_define" | sed -e 's/.*__GLIBC_MINOR__[ ]*//'`
4711 AC_MSG_RESULT([$glibc_version_major.$glibc_version_minor])
4712 AC_DEFINE_UNQUOTED([TARGET_GLIBC_MAJOR], [$glibc_version_major],
4713 [GNU C Library major version number used on the target, or 0.])
4714 AC_DEFINE_UNQUOTED([TARGET_GLIBC_MINOR], [$glibc_version_minor],
4715 [GNU C Library minor version number used on the target, or 0.])
4717 AC_ARG_ENABLE(gnu-unique-object,
4718 [AS_HELP_STRING([--enable-gnu-unique-object],
4719 [enable the use of the @gnu_unique_object ELF extension on glibc systems])],
4720 [case $enable_gnu_unique_object in
4722 *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object.
4723 Valid choices are 'yes' and 'no'.]) ;;
4725 [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,
4727 [.type foo, '$target_type_format_char'gnu_unique_object],,
4728 # We need to unquote above to to use the definition from config.gcc.
4729 # Also check for ld.so support, i.e. glibc 2.11 or higher.
4730 [GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )]
4732 if test x$enable_gnu_unique_object = xyes; then
4733 AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1,
4734 [Define if your assembler supports @gnu_unique_object.])
4737 AC_CACHE_CHECK([assembler for tolerance to line number 0],
4738 [gcc_cv_as_line_zero],
4739 [gcc_cv_as_line_zero=no
4740 if test $in_tree_gas = yes; then
4741 gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes])
4742 elif test "x$gcc_cv_as" != x; then
4743 { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s
4744 if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) &&
4745 test "x`cat conftest.out`" = x
4747 gcc_cv_as_line_zero=yes
4749 echo "configure: failed program was" >&AS_MESSAGE_LOG_FD
4750 cat conftest.s >&AS_MESSAGE_LOG_FD
4751 echo "configure: error output was" >&AS_MESSAGE_LOG_FD
4752 cat conftest.out >&AS_MESSAGE_LOG_FD
4754 rm -f conftest.o conftest.s conftest.out
4756 if test "x$gcc_cv_as_line_zero" = xyes; then
4757 AC_DEFINE([HAVE_AS_LINE_ZERO], 1,
4758 [Define if the assembler won't complain about a line such as # 0 "" 2.])
4761 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
4762 gcc_cv_ld_eh_frame_hdr=no
4763 if test $in_tree_ld = yes ; then
4764 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
4765 && test $in_tree_ld_is_elf = yes; then
4766 gcc_cv_ld_eh_frame_hdr=yes
4768 elif test x$gcc_cv_ld != x; then
4769 if echo "$ld_ver" | grep GNU > /dev/null; then
4770 # Check if linker supports --eh-frame-hdr option
4771 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
4772 gcc_cv_ld_eh_frame_hdr=yes
4777 # Sun ld has various bugs in .eh_frame_hdr support before version 1.2251.
4778 if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; then
4779 gcc_cv_ld_eh_frame_hdr=yes
4785 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
4786 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
4787 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
4788 [Define if your linker supports .eh_frame_hdr.])
4790 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
4792 AC_MSG_CHECKING(linker CIEv3 in .eh_frame support)
4793 gcc_cv_ld_eh_frame_ciev3=no
4794 if test $in_tree_ld = yes ; then
4795 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
4796 && test $in_tree_ld_is_elf = yes; then
4797 gcc_cv_ld_eh_frame_ciev3=yes
4799 elif test x$gcc_cv_ld != x; then
4800 if echo "$ld_ver" | grep GNU > /dev/null; then
4801 gcc_cv_ld_eh_frame_ciev3=yes
4802 if test 0"$ld_date" -lt 20040513; then
4803 if test -n "$ld_date"; then
4804 # If there was date string, but was earlier than 2004-05-13, fail
4805 gcc_cv_ld_eh_frame_ciev3=no
4806 elif test "$ld_vers_major" -lt 2; then
4807 gcc_cv_ld_eh_frame_ciev3=no
4808 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
4809 gcc_cv_ld_eh_frame_ciev3=no
4815 # Sun ld added support for CIE v3 in .eh_frame in Solaris 11.1.
4816 if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2324; then
4817 gcc_cv_ld_eh_frame_ciev3=yes
4823 AC_DEFINE_UNQUOTED(HAVE_LD_EH_FRAME_CIEV3,
4824 [`if test x"$gcc_cv_ld_eh_frame_ciev3" = xyes; then echo 1; else echo 0; fi`],
4825 [Define 0/1 if your linker supports CIE v3 in .eh_frame.])
4826 AC_MSG_RESULT($gcc_cv_ld_eh_frame_ciev3)
4828 AC_MSG_CHECKING(linker position independent executable support)
4830 if test $in_tree_ld = yes ; then
4832 # Full PIE support on Solaris was only introduced in gld 2.26.
4833 *-*-solaris2*) gcc_gld_pie_min_version=26 ;;
4834 *) gcc_gld_pie_min_version=15 ;;
4836 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge "$gcc_gld_pie_min_version" -o "$gcc_cv_gld_major_version" -gt 2 \
4837 && test $in_tree_ld_is_elf = yes; then
4840 elif test x$gcc_cv_ld != x; then
4841 # Check if linker supports -pie option
4842 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
4846 if echo "$ld_ver" | grep GNU > /dev/null \
4847 && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then
4854 *-*-solaris2.1[[1-9]]*)
4855 # Solaris 11.x and Solaris 12 added PIE support.
4856 if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then
4863 if test x"$gcc_cv_ld_pie" = xyes; then
4864 AC_DEFINE(HAVE_LD_PIE, 1,
4865 [Define if your linker supports PIE option.])
4867 AC_MSG_RESULT($gcc_cv_ld_pie)
4869 AC_MSG_CHECKING(linker PIE support with copy reloc)
4870 gcc_cv_ld_pie_copyreloc=no
4871 if test $gcc_cv_ld_pie = yes ; then
4872 if test $in_tree_ld = yes ; then
4873 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then
4874 gcc_cv_ld_pie_copyreloc=yes
4876 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
4877 # Check if linker supports -pie option with copy reloc
4879 i?86-*-linux* | x86_64-*-linux*)
4880 cat > conftest1.s <<EOF
4883 .type a_glob, @object
4888 cat > conftest2.s <<EOF
4891 .type main, @function
4893 movl %eax, a_glob(%rip)
4896 .section .data.rel,"aw",@progbits
4901 if $gcc_cv_as --64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
4902 && $gcc_cv_ld -shared -melf_x86_64 -o conftest1.so conftest1.o > /dev/null 2>&1 \
4903 && $gcc_cv_as --64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
4904 && $gcc_cv_ld -pie -melf_x86_64 -o conftest conftest2.o conftest1.so > /dev/null 2>&1; then
4905 gcc_cv_ld_pie_copyreloc=yes
4907 rm -f conftest conftest1.so conftest1.o conftest2.o conftest1.s conftest2.s
4912 AC_DEFINE_UNQUOTED(HAVE_LD_PIE_COPYRELOC,
4913 [`if test x"$gcc_cv_ld_pie_copyreloc" = xyes; then echo 1; else echo 0; fi`],
4914 [Define 0/1 if your linker supports -pie option with copy reloc.])
4915 AC_MSG_RESULT($gcc_cv_ld_pie_copyreloc)
4917 AC_MSG_CHECKING(linker EH-compatible garbage collection of sections)
4918 gcc_cv_ld_eh_gc_sections=no
4919 if test $in_tree_ld = yes ; then
4920 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \
4921 && test $in_tree_ld_is_elf = yes; then
4922 gcc_cv_ld_eh_gc_sections=yes
4924 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
4925 cat > conftest.s <<EOF
4928 .type _start, @function
4931 .size _start, .-_start
4932 .section .text.foo,"ax",@progbits
4933 .type foo, @function
4937 .section .gcc_except_table.foo,"a",@progbits
4940 .section .eh_frame,"a",@progbits
4943 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
4944 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
4945 | grep "gc-sections option ignored" > /dev/null; then
4946 gcc_cv_ld_eh_gc_sections=no
4947 elif $gcc_cv_objdump -h conftest 2> /dev/null \
4948 | grep gcc_except_table > /dev/null; then
4949 gcc_cv_ld_eh_gc_sections=yes
4950 # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
4951 if test x$gcc_cv_as_comdat_group != xyes; then
4952 gcc_cv_ld_eh_gc_sections=no
4953 cat > conftest.s <<EOF
4956 .type _start, @function
4959 .size _start, .-_start
4960 .section .gnu.linkonce.t.foo,"ax",@progbits
4961 .type foo, @function
4965 .section .gcc_except_table.foo,"a",@progbits
4968 .section .eh_frame,"a",@progbits
4971 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
4972 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
4973 | grep "gc-sections option ignored" > /dev/null; then
4974 gcc_cv_ld_eh_gc_sections=no
4975 elif $gcc_cv_objdump -h conftest 2> /dev/null \
4976 | grep gcc_except_table > /dev/null; then
4977 gcc_cv_ld_eh_gc_sections=yes
4983 rm -f conftest.s conftest.o conftest
4987 # ??? This apparently exposes a binutils bug with PC-relative relocations.
4988 gcc_cv_ld_eh_gc_sections=no
4991 if test x$gcc_cv_ld_eh_gc_sections = xyes; then
4992 AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1,
4993 [Define if your linker supports garbage collection of
4994 sections in presence of EH frames.])
4996 AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
4998 AC_MSG_CHECKING(linker EH garbage collection of sections bug)
4999 gcc_cv_ld_eh_gc_sections_bug=no
5000 if test $in_tree_ld = yes ; then
5001 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \
5002 && test $in_tree_ld_is_elf = yes; then
5003 gcc_cv_ld_eh_gc_sections_bug=yes
5005 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x -a x$gcc_cv_as_comdat_group = xyes; then
5006 gcc_cv_ld_eh_gc_sections_bug=yes
5007 cat > conftest.s <<EOF
5010 .type _start, @function
5013 .size _start, .-_start
5014 .section .text.startup.foo,"ax",@progbits
5015 .type foo, @function
5019 .section .gcc_except_table.foo,"a",@progbits
5022 .section .eh_frame,"a",@progbits
5025 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
5026 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
5027 | grep "gc-sections option ignored" > /dev/null; then
5029 elif $gcc_cv_objdump -h conftest 2> /dev/null \
5030 | grep gcc_except_table > /dev/null; then
5031 gcc_cv_ld_eh_gc_sections_bug=no
5034 rm -f conftest.s conftest.o conftest
5036 if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then
5037 AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1,
5038 [Define if your linker has buggy garbage collection of
5039 sections support when .text.startup.foo like sections are used.])
5041 AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug)
5043 AC_MSG_CHECKING(linker for compressed debug sections)
5044 # gold/gld support compressed debug sections since binutils 2.19/2.21
5045 if test $in_tree_ld = yes ; then
5046 gcc_cv_ld_compress_debug=0
5047 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \
5048 && test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then
5049 gcc_cv_ld_compress_debug=2
5050 gcc_cv_ld_compress_debug_option="--compress-debug-sections"
5051 elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \
5052 && test $in_tree_ld_is_elf = yes; then
5053 gcc_cv_ld_compress_debug=1
5055 elif echo "$ld_ver" | grep GNU > /dev/null; then
5056 gcc_cv_ld_compress_debug=1
5057 if test 0"$ld_date" -lt 20050308; then
5058 if test -n "$ld_date"; then
5059 # If there was date string, but was earlier than 2005-03-08, fail
5060 gcc_cv_ld_compress_debug=0
5061 elif test "$ld_vers_major" -lt 2; then
5062 gcc_cv_ld_compress_debug=0
5063 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then
5064 gcc_cv_ld_compress_debug=0
5067 if test $ld_is_gold = yes; then
5068 gcc_cv_ld_compress_debug=2
5069 gcc_cv_ld_compress_debug_option="--compress-debug-sections"
5075 # Introduced in Solaris 11.2.
5076 if $gcc_cv_ld --help 2>&1 | grep -- '-z compress-sections' > /dev/null; then
5077 gcc_cv_ld_compress_debug=3
5078 gcc_cv_ld_compress_debug_option="-z compress-sections"
5080 gcc_cv_ld_compress_debug=0
5084 # Assume linkers other than GNU ld don't support compessed debug
5086 gcc_cv_ld_compress_debug=0
5091 AC_DEFINE_UNQUOTED(HAVE_LD_COMPRESS_DEBUG, $gcc_cv_ld_compress_debug,
5092 [Define to the level of your linker's compressed debug section support.])
5093 AC_DEFINE_UNQUOTED(LD_COMPRESS_DEBUG_OPTION, "$gcc_cv_ld_compress_debug_option",
5094 [Define to the linker option to enable compressed debug sections.])
5095 AC_MSG_RESULT($gcc_cv_ld_compress_debug)
5101 AC_CACHE_CHECK(linker --as-needed support,
5102 gcc_cv_ld_as_needed,
5103 [gcc_cv_ld_as_needed=no
5104 gcc_cv_ld_as_needed_option='--as-needed'
5105 gcc_cv_ld_no_as_needed_option='--no-as-needed'
5106 if test $in_tree_ld = yes ; then
5107 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
5108 && test $in_tree_ld_is_elf = yes; then
5109 gcc_cv_ld_as_needed=yes
5111 elif test x$gcc_cv_ld != x; then
5112 # Check if linker supports --as-needed and --no-as-needed options
5113 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
5114 gcc_cv_ld_as_needed=yes
5117 # Solaris 2 ld always supports -z ignore/-z record.
5119 gcc_cv_ld_as_needed=yes
5120 gcc_cv_ld_as_needed_option="-z ignore"
5121 gcc_cv_ld_no_as_needed_option="-z record"
5126 # --as-needed/-z ignore can only be used if libgcc_s.so.1 uses
5127 # dl_iterate_phdr, i.e. since Solaris 11.
5129 *-*-solaris2.1[[1-9]]*)
5131 i?86-*-* | x86_64-*-*)
5132 if echo "$ld_ver" | grep GNU > /dev/null; then
5133 # Doesn't work with gld on Solaris/x86 due to PR ld/12320.
5134 gcc_cv_ld_as_needed=no
5140 gcc_cv_ld_as_needed=no
5144 if test x"$gcc_cv_ld_as_needed" = xyes; then
5145 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
5146 [Define if your linker supports --as-needed/--no-as-needed or equivalent options.])
5147 AC_DEFINE_UNQUOTED(LD_AS_NEEDED_OPTION, "$gcc_cv_ld_as_needed_option",
5148 [Define to the linker option to ignore unused dependencies.])
5149 AC_DEFINE_UNQUOTED(LD_NO_AS_NEEDED_OPTION, "$gcc_cv_ld_no_as_needed_option",
5150 [Define to the linker option to keep unused dependencies.])
5153 AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities)
5154 saved_LDFLAGS="$LDFLAGS"
5155 for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do
5156 LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map"
5157 AC_LINK_IFELSE([int main(void) {return 0;}],
5158 [gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no])
5160 LDFLAGS="$saved_LDFLAGS"
5161 if test "x$gcc_cv_ld_clearcap" = xyes; then
5162 AC_DEFINE([HAVE_LD_CLEARCAP], 1,
5163 [Define if the linker supports clearing hardware capabilities via mapfile.])
5164 AC_CONFIG_LINKS([clearcap.map:${srcdir}/config/$clearcap_map])
5166 AC_MSG_RESULT($gcc_cv_ld_clearcap)
5168 case "$target:$tm_file" in
5169 powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
5172 emul_name="-melf64lppc"
5175 emul_name="-melf64ppc"
5178 emul_name="-melf64ppc_fbsd"
5181 AC_CACHE_CHECK(linker support for omitting dot symbols,
5182 gcc_cv_ld_no_dot_syms,
5183 [gcc_cv_ld_no_dot_syms=no
5184 if test x"$ld_is_gold" = xyes; then
5185 gcc_cv_ld_no_dot_syms=yes
5186 elif test $in_tree_ld = yes ; then
5187 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
5188 gcc_cv_ld_no_dot_syms=yes
5190 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
5191 cat > conftest1.s <<EOF
5195 cat > conftest2.s <<EOF
5196 .section ".opd","aw"
5201 .quad .LEfoo,.TOC.@tocbase,0
5207 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
5208 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
5209 && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
5210 gcc_cv_ld_no_dot_syms=yes
5212 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
5215 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
5216 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
5217 [Define if your PowerPC64 linker only needs function descriptor syms.])
5220 AC_CACHE_CHECK(linker large toc support,
5221 gcc_cv_ld_large_toc,
5222 [gcc_cv_ld_large_toc=no
5223 if test x"$ld_is_gold" = xyes; then
5224 gcc_cv_ld_large_toc=yes
5225 elif test $in_tree_ld = yes ; then
5226 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then
5227 gcc_cv_ld_large_toc=yes
5229 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
5230 cat > conftest.s <<EOF
5231 .section ".tbss","awT",@nobits
5237 addis 9,13,ie0@got@tprel@ha
5238 ld 9,ie0@got@tprel@l(9)
5240 if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
5241 && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
5242 gcc_cv_ld_large_toc=yes
5244 rm -f conftest conftest.o conftest.s
5247 if test x"$gcc_cv_ld_large_toc" = xyes; then
5248 AC_DEFINE(HAVE_LD_LARGE_TOC, 1,
5249 [Define if your PowerPC64 linker supports a large TOC.])
5252 AC_CACHE_CHECK(linker toc pointer alignment,
5253 gcc_cv_ld_toc_align,
5254 [if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then
5255 cat > conftest.s <<EOF
5260 .section .data.rel.ro,"aw",@progbits
5265 if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
5266 && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then
5267 gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'`
5269 rm -f conftest conftest.o conftest.s
5272 if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then
5273 AC_DEFINE_UNQUOTED(POWERPC64_TOC_POINTER_ALIGNMENT, $gcc_cv_ld_toc_align,
5274 [Define to .TOC. alignment forced by your linker.])
5281 AC_CACHE_CHECK(linker large toc support,
5282 gcc_cv_ld_large_toc,
5283 [gcc_cv_ld_large_toc=no
5284 if test x$gcc_cv_as != x ; then
5285 cat > conftest.s <<EOF
5295 if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then
5296 gcc_cv_ld_large_toc=yes
5298 rm -f conftest conftest.o conftest.s
5301 if test x"$gcc_cv_ld_large_toc" = xyes; then
5302 AC_DEFINE(HAVE_LD_LARGE_TOC, 1,
5303 [Define if your PowerPC64 linker supports a large TOC.])
5308 AC_CACHE_CHECK(linker --build-id support,
5310 [gcc_cv_ld_buildid=no
5311 if test $in_tree_ld = yes ; then
5312 if test "$gcc_cv_gld_major_version" -eq 2 -a \
5313 "$gcc_cv_gld_minor_version" -ge 18 -o \
5314 "$gcc_cv_gld_major_version" -gt 2 \
5315 && test $in_tree_ld_is_elf = yes; then
5316 gcc_cv_ld_buildid=yes
5318 elif test x$gcc_cv_ld != x; then
5319 if $gcc_cv_ld --help 2>/dev/null | grep build-id > /dev/null; then
5320 gcc_cv_ld_buildid=yes
5323 if test x"$gcc_cv_ld_buildid" = xyes; then
5324 AC_DEFINE(HAVE_LD_BUILDID, 1,
5325 [Define if your linker supports --build-id.])
5328 AC_ARG_ENABLE(linker-build-id,
5329 [AS_HELP_STRING([--enable-linker-build-id],
5330 [compiler will always pass --build-id to linker])],
5332 enable_linker_build_id=no)
5334 if test x"$enable_linker_build_id" = xyes; then
5335 if test x"$gcc_cv_ld_buildid" = xyes; then
5336 AC_DEFINE(ENABLE_LD_BUILDID, 1,
5337 [Define if gcc should always pass --build-id to linker.])
5339 AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored)
5343 # In binutils 2.21, GNU ld gained support for new emulations fully
5344 # supporting the Solaris 2 ABI. Detect their presence in the linker used.
5345 AC_CACHE_CHECK(linker *_sol2 emulation support,
5346 gcc_cv_ld_sol2_emulation,
5347 [gcc_cv_ld_sol2_emulation=no
5348 if test $in_tree_ld = yes ; then
5349 if test "$gcc_cv_gld_major_version" -eq 2 -a \
5350 "$gcc_cv_gld_minor_version" -ge 21 -o \
5351 "$gcc_cv_gld_major_version" -gt 2 \
5352 && test $in_tree_ld_is_elf = yes; then
5353 gcc_cv_ld_sol2_emulation=yes
5355 elif test x$gcc_cv_ld != x; then
5356 if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \
5357 grep _sol2 > /dev/null; then
5358 gcc_cv_ld_sol2_emulation=yes
5361 if test x"$gcc_cv_ld_sol2_emulation" = xyes; then
5362 AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1,
5363 [Define if your linker supports the *_sol2 emulations.])
5366 AC_CACHE_CHECK(linker --sysroot support,
5368 [gcc_cv_ld_sysroot=no
5369 if test $in_tree_ld = yes ; then
5370 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
5371 gcc_cv_ld_sysroot=yes
5373 elif test x$gcc_cv_ld != x; then
5374 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
5375 gcc_cv_ld_sysroot=yes
5378 if test x"$gcc_cv_ld_sysroot" = xyes; then
5379 AC_DEFINE(HAVE_LD_SYSROOT, 1,
5380 [Define if your linker supports --sysroot.])
5385 # Check for system-provided CRTs on Solaris 11.x and Solaris 12.
5386 AC_CACHE_CHECK([system-provided CRTs on Solaris],
5387 gcc_cv_solaris_crts,
5388 [gcc_cv_solaris_crts=no
5389 if test x$host != x$target; then
5390 if test "x$with_sysroot" = xyes; then
5391 target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root"
5393 target_sysroot="${with_sysroot}"
5396 target_libdir="$target_sysroot/usr/lib"
5397 # At the time they were added, gcrt1.o became a symlink for backwards
5398 # compatibility on x86, while crt1.o was added on sparc, so check for that.
5400 i?86-*-solaris2* | x86_64-*-solaris2*)
5401 if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi
5404 if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi
5409 if test x$gcc_cv_solaris_crts = xyes; then
5410 AC_DEFINE(HAVE_SOLARIS_CRTS, 1,
5411 [Define if the system-provided CRTs are present on Solaris.])
5414 # Test for stack protector support in target C library.
5415 AC_CACHE_CHECK(__stack_chk_fail in target C library,
5416 gcc_cv_libc_provides_ssp,
5417 [gcc_cv_libc_provides_ssp=no
5420 # All versions of musl provide stack protector
5421 gcc_cv_libc_provides_ssp=yes;;
5422 *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
5423 # glibc 2.4 and later provides __stack_chk_fail and
5424 # either __stack_chk_guard, or TLS access to stack guard canary.
5425 GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [
5426 [if test -f $target_header_dir/features.h \
5427 && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
5428 $target_header_dir/features.h > /dev/null; then
5429 if $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
5430 $target_header_dir/features.h > /dev/null && \
5431 test -f $target_header_dir/bits/uClibc_config.h && \
5432 $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
5433 $target_header_dir/bits/uClibc_config.h > /dev/null; then
5434 gcc_cv_libc_provides_ssp=yes
5436 # all versions of Bionic support stack protector
5437 elif test -f $target_header_dir/sys/cdefs.h \
5438 && $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \
5439 $target_header_dir/sys/cdefs.h > /dev/null; then
5440 gcc_cv_libc_provides_ssp=yes
5444 # Avoid complicated tests (see
5445 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
5446 # simply assert that glibc does provide this, which is true for all
5447 # realistically usable GNU/Hurd configurations.
5448 # All supported versions of musl provide it as well
5449 gcc_cv_libc_provides_ssp=yes;;
5450 *-*-darwin* | *-*-freebsd*)
5451 AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
5452 [echo "no __stack_chk_fail on this target"])
5454 *) gcc_cv_libc_provides_ssp=no ;;
5457 if test x$gcc_cv_libc_provides_ssp = xyes; then
5458 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
5459 [Define if your target C library provides stack protector support])
5462 # Check whether --enable-default-ssp was given.
5463 AC_ARG_ENABLE(default-ssp,
5464 [AS_HELP_STRING([--enable-default-ssp],
5465 [enable Stack Smashing Protection as default])],[
5466 if test x$gcc_cv_libc_provides_ssp = xyes; then
5468 ia64*-*-*) enable_default_ssp=no ;;
5469 *) enable_default_ssp=$enableval ;;
5472 enable_default_ssp=no
5474 enable_default_ssp=no)
5475 if test x$enable_default_ssp = xyes ; then
5476 AC_DEFINE(ENABLE_DEFAULT_SSP, 1,
5477 [Define if your target supports default stack protector and it is enabled.])
5479 AC_SUBST([enable_default_ssp])
5481 # Test for <sys/sdt.h> on the target.
5482 GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
5483 AC_MSG_CHECKING(sys/sdt.h in the target C library)
5485 if test -f $target_header_dir/sys/sdt.h; then
5487 AC_DEFINE(HAVE_SYS_SDT_H, 1,
5488 [Define if your target C library provides sys/sdt.h])
5490 AC_MSG_RESULT($have_sys_sdt_h)
5492 # Check if TFmode long double should be used by default or not.
5493 # Some glibc targets used DFmode long double, but with glibc 2.4
5494 # and later they can use TFmode.
5496 powerpc*-*-linux* | \
5500 AC_ARG_WITH(long-double-128,
5501 [AS_HELP_STRING([--with-long-double-128],
5502 [use 128-bit long double by default])],
5503 gcc_cv_target_ldbl128="$with_long_double_128",
5504 [GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [
5505 [gcc_cv_target_ldbl128=no
5506 grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
5507 $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \
5508 && gcc_cv_target_ldbl128=yes
5512 if test x$gcc_cv_target_ldbl128 = xyes; then
5513 AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
5514 [Define if TFmode long double should be the default])
5517 AC_MSG_CHECKING(dl_iterate_phdr in target C library)
5518 gcc_cv_target_dl_iterate_phdr=unknown
5520 # Restrict to Solaris 11+. While most of the Solaris 11 linker changes
5521 # were backported to Solaris 10 Update 10, dl_iterate_phdr only lives in
5522 # libdl there, both complicating its use and breaking compatibility
5523 # between Solaris 10 updates.
5524 *-*-solaris2.1[[1-9]]*)
5525 # <link.h> needs both a dl_iterate_phdr declaration and support for
5526 # compilation with largefile support.
5527 if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \
5528 && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then
5529 gcc_cv_target_dl_iterate_phdr=yes
5531 gcc_cv_target_dl_iterate_phdr=no
5534 *-*-dragonfly* | *-*-freebsd*)
5535 if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then
5536 gcc_cv_target_dl_iterate_phdr=yes
5538 gcc_cv_target_dl_iterate_phdr=no
5542 gcc_cv_target_dl_iterate_phdr=yes
5545 GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
5546 if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
5547 AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1,
5548 [Define if your target C library provides the `dl_iterate_phdr' function.])
5550 AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr)
5552 # We no longer support different GC mechanisms. Emit an error if
5553 # the user configures with --with-gc.
5555 [AS_HELP_STRING([--with-gc={page,zone}],
5556 [this option is not supported anymore. It used to choose
5557 the garbage collection mechanism to use with the compiler])],
5558 [AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])],
5561 # Libraries to use on the host. This will normally be set by the top
5562 # level Makefile. Here we simply capture the value for our Makefile.
5563 if test -z "${HOST_LIBS+set}"; then
5568 # Use the system's zlib library.
5571 dnl Very limited version of automake's enable-maintainer-mode
5573 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
5574 dnl maintainer-mode is disabled by default
5575 AC_ARG_ENABLE(maintainer-mode,
5576 [AS_HELP_STRING([--enable-maintainer-mode],
5577 [enable make rules and dependencies not useful
5578 (and sometimes confusing) to the casual installer])],
5579 maintainer_mode=$enableval,
5582 AC_MSG_RESULT($maintainer_mode)
5584 if test "$maintainer_mode" = "yes"; then
5591 dnl Whether to prevent multiple front-ends from linking at the same time
5593 AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once])
5594 AC_ARG_ENABLE(link-mutex,
5595 [AS_HELP_STRING([--enable-link-mutex],
5596 [avoid linking multiple front-ends at once to avoid thrashing
5597 on the build machine])],
5598 do_link_mutex=$enableval,
5600 AC_MSG_RESULT($do_link_mutex)
5602 if test "$do_link_mutex" = "yes"; then
5607 AC_SUBST(DO_LINK_MUTEX)
5613 # Make empty files to contain the specs and options for each language.
5614 # Then add #include lines to for a compiler that has specs and/or options.
5620 # These (without "all_") are set in each config-lang.in.
5621 # `language' must be a single word so is spelled singularly.
5624 all_outputs='Makefile'
5625 # List of language makefile fragments.
5627 # Additional files for gengtype
5628 all_gtfiles="$target_gtfiles"
5630 # These are the languages that are set in --enable-languages,
5631 # and are available in the GCC tree.
5632 all_selected_languages=
5634 # Add the language fragments.
5635 # Languages are added via two mechanisms. Some information must be
5636 # recorded in makefile variables, these are defined in config-lang.in.
5637 # We accumulate them and plug them into the main Makefile.
5638 # The other mechanism is a set of hooks for each of the main targets
5639 # like `clean', `install', etc.
5641 language_hooks="Make-hooks"
5643 for lang in ${srcdir}/*/config-lang.in
5646 test "$lang" = "${srcdir}/*/config-lang.in" && continue
5648 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
5649 if test "x$lang_alias" = x
5651 echo "$lang doesn't set \$language." 1>&2
5654 subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
5655 subdirs="$subdirs $subdir"
5657 # $gcc_subdir is where the gcc integration files are to be found
5658 # for a language, both for internal compiler purposes (compiler
5659 # sources implementing front-end to GCC tree converters), and for
5660 # build infrastructure purposes (Make-lang.in, etc.)
5662 # This will be <subdir> (relative to $srcdir) if a line like
5663 # gcc_subdir="<subdir>" or gcc_subdir=<subdir>
5664 # is found in <langdir>/config-lang.in, and will remain <langdir>
5667 # Except for the language alias (fetched above), the regular
5668 # "config-lang.in" contents are always retrieved from $gcc_subdir,
5669 # so a <langdir>/config-lang.in setting gcc_subdir typically sets
5670 # only this and the language alias.
5672 gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang`
5673 if [ "$gcc_subdir" = "" ]; then
5674 gcc_subdir="$subdir"
5677 case ",$enable_languages," in
5679 all_selected_languages="$all_selected_languages $lang_alias"
5680 if test -f $srcdir/$gcc_subdir/lang-specs.h; then
5681 lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h"
5693 . ${srcdir}/$gcc_subdir/config-lang.in
5694 if test "x$language" = x
5696 echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2
5701 case ",$enable_languages," in
5704 for i in $subdir_requires; do
5705 test -f "${srcdir}/$i/config-lang.in" && continue
5713 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
5714 if test -f $srcdir/$gcc_subdir/lang.opt; then
5715 lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
5716 all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt"
5718 if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
5719 lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
5721 all_languages="$all_languages $language"
5722 all_compilers="$all_compilers $compilers"
5723 all_outputs="$all_outputs $outputs"
5724 all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles"
5725 case ",$enable_languages," in
5727 AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
5729 AC_SUBST(enable_lto)
5736 for language in $all_selected_languages
5738 check_languages="$check_languages check-$language"
5741 # We link each language in with a set of hooks, reached indirectly via
5742 # lang.${target}. Only do so for selected languages.
5746 target_list="all.cross start.encap rest.encap tags \
5747 install-common install-man install-info install-pdf install-html dvi \
5748 pdf html uninstall info man srcextra srcman srcinfo \
5749 mostlyclean clean distclean maintainer-clean install-plugin"
5751 for t in $target_list
5754 for lang in $all_selected_languages
5758 echo "lang.$t: $x" >> Make-hooks
5762 # Option include files
5765 ${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk
5766 option_includes="option-includes.mk"
5767 AC_SUBST_FILE(option_includes)
5775 echo "dir ." > .gdbinit
5776 echo "dir ${srcdir}" >> .gdbinit
5777 if test x$gdb_needs_out_file_path = xyes
5779 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
5781 if test "x$subdirs" != x; then
5784 echo "dir ${srcdir}/$s" >> .gdbinit
5787 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
5788 echo "python import sys; sys.path.append('${srcdir}'); import gdbhooks" >> .gdbinit
5790 # Put a breakpoint on __asan_report_error to help with debugging buffer
5793 *-fsanitize=address*)
5794 echo "source ${srcdir}/gdbasan.in" >> .gdbinit
5798 gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)'
5799 AC_SUBST(gcc_tooldir)
5802 # Find a directory in which to install a shared libgcc.
5804 AC_ARG_ENABLE(version-specific-runtime-libs,
5805 [AS_HELP_STRING([--enable-version-specific-runtime-libs],
5806 [specify that runtime libraries should be
5807 installed in a compiler-specific directory])])
5809 # Substitute configuration variables
5812 AC_SUBST(all_compilers)
5813 AC_SUBST(all_gtfiles)
5814 AC_SUBST(all_lang_makefrags)
5815 AC_SUBST(all_languages)
5816 AC_SUBST(all_selected_languages)
5817 AC_SUBST(build_exeext)
5818 AC_SUBST(build_install_headers_dir)
5819 AC_SUBST(build_xm_file_list)
5820 AC_SUBST(build_xm_include_list)
5821 AC_SUBST(build_xm_defines)
5822 AC_SUBST(build_file_translate)
5823 AC_SUBST(check_languages)
5824 AC_SUBST(cpp_install_dir)
5825 AC_SUBST(xmake_file)
5826 AC_SUBST(tmake_file)
5827 AC_SUBST(TM_ENDIAN_CONFIG)
5828 AC_SUBST(TM_MULTILIB_CONFIG)
5829 AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG)
5830 AC_SUBST(extra_gcc_objs)
5831 AC_SUBST(user_headers_inc_next_pre)
5832 AC_SUBST(user_headers_inc_next_post)
5833 AC_SUBST(extra_headers_list)
5834 AC_SUBST(extra_objs)
5835 AC_SUBST(extra_programs)
5836 AC_SUBST(float_h_file)
5837 AC_SUBST(gcc_config_arguments)
5838 AC_SUBST(gcc_gxx_include_dir)
5839 AC_SUBST(gcc_gxx_include_dir_add_sysroot)
5840 AC_SUBST(host_exeext)
5841 AC_SUBST(host_xm_file_list)
5842 AC_SUBST(host_xm_include_list)
5843 AC_SUBST(host_xm_defines)
5844 AC_SUBST(out_host_hook_obj)
5846 AC_SUBST(lang_opt_files)
5847 AC_SUBST(lang_specs_files)
5848 AC_SUBST(lang_tree_files)
5849 AC_SUBST(local_prefix)
5851 AC_SUBST(objc_boehm_gc)
5853 AC_SUBST(out_object_file)
5854 AC_SUBST(common_out_file)
5855 AC_SUBST(common_out_object_file)
5856 AC_SUBST(tm_file_list)
5857 AC_SUBST(tm_include_list)
5858 AC_SUBST(tm_defines)
5859 AC_SUBST(tm_p_file_list)
5860 AC_SUBST(tm_p_include_list)
5861 AC_SUBST(xm_file_list)
5862 AC_SUBST(xm_include_list)
5863 AC_SUBST(xm_defines)
5864 AC_SUBST(use_gcc_stdint)
5865 AC_SUBST(c_target_objs)
5866 AC_SUBST(cxx_target_objs)
5867 AC_SUBST(fortran_target_objs)
5868 AC_SUBST(target_cpu_default)
5870 AC_SUBST_FILE(language_hooks)
5873 if test x${build} = x${host} ; then
5874 if test x${host} = x${target} ; then
5875 echo "Links are now set up to build a native compiler for ${target}." 1>&2
5877 echo "Links are now set up to build a cross-compiler" 1>&2
5878 echo " from ${host} to ${target}." 1>&2
5881 if test x${host} = x${target} ; then
5882 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
5883 echo " for ${target}." 1>&2
5885 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
5886 echo " from ${host} to ${target}." 1>&2
5890 AC_ARG_VAR(GMPLIBS,[How to link GMP])
5891 AC_ARG_VAR(GMPINC,[How to find GMP include files])
5893 AC_ARG_VAR(ISLLIBS,[How to link ISL])
5894 AC_ARG_VAR(ISLINC,[How to find ISL include files])
5895 if test "x${ISLLIBS}" != "x" ; then
5896 AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.])
5899 # Check whether isl_schedule_constraints_compute_schedule is available;
5900 # it's new in ISL-0.13.
5901 # Check whether isl_options_set_schedule_serialize_sccs is available;
5902 # it's new in ISL-0.15.
5903 if test "x${ISLLIBS}" != "x" ; then
5904 saved_CXXFLAGS="$CXXFLAGS"
5905 CXXFLAGS="$CXXFLAGS $ISLINC"
5907 LIBS="$LIBS $ISLLIBS $GMPLIBS"
5909 AC_MSG_CHECKING([Checking for isl_schedule_constraints_compute_schedule])
5910 AC_TRY_LINK([#include <isl/schedule.h>],
5911 [isl_schedule_constraints_compute_schedule (NULL);],
5912 [ac_has_isl_schedule_constraints_compute_schedule=yes],
5913 [ac_has_isl_schedule_constraints_compute_schedule=no])
5914 AC_MSG_RESULT($ac_has_isl_schedule_constraints_compute_schedule)
5916 AC_MSG_CHECKING([Checking for isl_options_set_schedule_serialize_sccs])
5917 AC_TRY_LINK([#include <isl/schedule.h>],
5918 [isl_options_set_schedule_serialize_sccs (NULL, 0);],
5919 [ac_has_isl_options_set_schedule_serialize_sccs=yes],
5920 [ac_has_isl_options_set_schedule_serialize_sccs=no])
5921 AC_MSG_RESULT($ac_has_isl_options_set_schedule_serialize_sccs)
5923 AC_MSG_CHECKING([Checking for isl_ctx_get_max_operations])
5924 AC_TRY_LINK([#include <isl/ctx.h>],
5925 [isl_ctx_get_max_operations (isl_ctx_alloc ());],
5926 [ac_has_isl_ctx_get_max_operations=yes],
5927 [ac_has_isl_ctx_get_max_operations=no])
5928 AC_MSG_RESULT($ac_has_isl_ctx_get_max_operations)
5931 CXXFLAGS="$saved_CXXFLAGS"
5933 if test x"$ac_has_isl_schedule_constraints_compute_schedule" = x"yes"; then
5934 AC_DEFINE(HAVE_ISL_SCHED_CONSTRAINTS_COMPUTE_SCHEDULE, 1,
5935 [Define if isl_schedule_constraints_compute_schedule exists.])
5938 if test x"$ac_has_isl_options_set_schedule_serialize_sccs" = x"yes"; then
5939 AC_DEFINE(HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS, 1,
5940 [Define if isl_options_set_schedule_serialize_sccs exists.])
5942 if test x"$ac_has_isl_ctx_get_max_operations" = x"yes"; then
5943 AC_DEFINE(HAVE_ISL_CTX_MAX_OPERATIONS, 1,
5944 [Define if isl_ctx_get_max_operations exists.])
5949 AC_SUBST(pluginlibs)
5950 AC_SUBST(enable_plugin)
5951 if test x"$enable_plugin" = x"yes"; then
5952 AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.])
5956 # Enable --enable-host-shared
5957 AC_ARG_ENABLE(host-shared,
5958 [AS_HELP_STRING([--enable-host-shared],
5959 [build host code as shared libraries])],
5960 [PICFLAG=-fPIC], [PICFLAG=])
5961 AC_SUBST(enable_host_shared)
5965 AC_ARG_ENABLE(libquadmath-support,
5966 [AS_HELP_STRING([--disable-libquadmath-support],
5967 [disable libquadmath support for Fortran])],
5968 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
5969 ENABLE_LIBQUADMATH_SUPPORT=yes)
5970 if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then
5971 AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1,
5972 [Define to 1 to enable libquadmath support])
5976 # Specify what hash style to use by default.
5977 AC_ARG_WITH([linker-hash-style],
5978 [AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}],
5979 [specify the linker hash style])],
5980 [case x"$withval" in
5982 LINKER_HASH_STYLE=sysv
5985 LINKER_HASH_STYLE=gnu
5988 LINKER_HASH_STYLE=both
5991 AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style])
5994 [LINKER_HASH_STYLE=''])
5995 if test x"${LINKER_HASH_STYLE}" != x; then
5996 AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE",
5997 [The linker hash style])
6000 # Specify what should be the default of -fdiagnostics-color option.
6001 AC_ARG_WITH([diagnostics-color],
6002 [AC_HELP_STRING([--with-diagnostics-color={never,auto,auto-if-env,always}],
6003 [specify the default of -fdiagnostics-color option
6004 auto-if-env stands for -fdiagnostics-color=auto if
6005 GCC_COLOR environment variable is present and
6006 -fdiagnostics-color=never otherwise])],
6007 [case x"$withval" in
6009 DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_NO
6012 DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO
6015 DIAGNOSTICS_COLOR_DEFAULT=-1
6018 DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_YES
6021 AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-color])
6024 [DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO])
6025 AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT,
6026 [The default for -fdiagnostics-color option])
6028 # Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit
6029 # of jit/jit-playback.c.
6030 cat > gcc-driver-name.h <<EOF
6031 #define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_BASEVER}${exeext}"
6034 # Check whether --enable-default-pie was given.
6035 AC_ARG_ENABLE(default-pie,
6036 [AS_HELP_STRING([--enable-default-pie],
6037 [enable Position Independent Executable as default])],
6038 enable_default_pie=$enableval,
6039 enable_default_pie=no)
6040 if test x$enable_default_pie = xyes ; then
6041 AC_DEFINE(ENABLE_DEFAULT_PIE, 1,
6042 [Define if your target supports default PIE and it is enabled.])
6044 AC_SUBST([enable_default_pie])
6046 # Check if -fno-PIE works.
6047 AC_CACHE_CHECK([for -fno-PIE option],
6049 [saved_CXXFLAGS="$CXXFLAGS"
6050 CXXFLAGS="$CXXFLAGS -fno-PIE"
6051 AC_COMPILE_IFELSE([int main(void) {return 0;}],
6052 [gcc_cv_c_no_fpie=yes],
6053 [gcc_cv_c_no_fpie=no])
6054 CXXFLAGS="$saved_CXXFLAGS"])
6055 if test "$gcc_cv_c_no_fpie" = "yes"; then
6056 NO_PIE_CFLAGS="-fno-PIE"
6058 AC_SUBST([NO_PIE_CFLAGS])
6060 # Check if -no-pie works.
6061 AC_CACHE_CHECK([for -no-pie option],
6063 [saved_LDFLAGS="$LDFLAGS"
6064 LDFLAGS="$LDFLAGS -no-pie"
6065 AC_LINK_IFELSE([int main(void) {return 0;}],
6066 [gcc_cv_no_pie=yes],
6068 LDFLAGS="$saved_LDFLAGS"])
6069 if test "$gcc_cv_no_pie" = "yes"; then
6070 NO_PIE_FLAG="-no-pie"
6072 AC_SUBST([NO_PIE_FLAG])
6074 # Check linker supports '-z bndplt'
6075 ld_bndplt_support=no
6076 AC_MSG_CHECKING(linker -z bndplt option)
6077 if test x"$ld_is_gold" = xno; then
6078 if test $in_tree_ld = yes ; then
6079 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then
6080 ld_bndplt_support=yes
6082 elif test x$gcc_cv_ld != x; then
6083 # Check if linker supports -a bndplt option
6084 if $gcc_cv_ld --help 2>/dev/null | grep -- '-z bndplt' > /dev/null; then
6085 ld_bndplt_support=yes
6089 if test x"$ld_bndplt_support" = xyes; then
6090 AC_DEFINE(HAVE_LD_BNDPLT_SUPPORT, 1,
6091 [Define if your linker supports -z bndplt])
6093 AC_MSG_RESULT($ld_bndplt_support)
6095 # Configure the subdirectories
6096 # AC_CONFIG_SUBDIRS($subdirs)
6098 # Create the Makefile
6099 # and configure language subdirectories
6100 AC_CONFIG_FILES($all_outputs)
6102 AC_CONFIG_COMMANDS([default],
6104 case ${CONFIG_HEADERS} in
6105 *auto-host.h:config.in*)
6108 # Make sure all the subdirs exist.
6109 for d in $subdirs doc build common c-family
6111 test -d $d || mkdir $d
6114 [subdirs='$subdirs'])