AC_DEFINE(HAVE_TLS, 1,
[Define to 1 if the target supports thread-local storage.])
fi])
+
+dnl Check whether the target assembler supports TLS.
+AC_DEFUN([GCC_CHECK_CC_TLS], [
+ GCC_ENABLE(tls, yes, [], [Use thread-local storage])
+ AC_CACHE_CHECK([whether the target asssembler upports thread-local storage],
+ have_cc_tls, [
+ AC_COMPILE_IFELSE([__thread int a; int b; int main() { return a = b; }],
+ [have_cc_tls=yes], [have_cc_tls=no])]
+ )])
+ if test "$enable_tls $have_cc_tls" = "yes yes"; then
+ AC_DEFINE(HAVE_CC_TLS, 1,
+ [Define to 1 if the target assembler supports thread-local storage.])
+ fi])
+2007-07-06 H.J. Lu <hongjiu.lu@intel.com>
+
+ * config.host (tmake_file): Add t-tls for i[34567]86-*-linux*
+ and x86_64-*-linux*.
+
+ * config/t-tls: New file.
+
+ * Makefile.in (INTERNAL_CFLAGS): Add @set_have_cc_tls@.
+
+ * configure.ac: Include ../config/enable.m4 and
+ ../config/tls.m4. Use GCC_CHECK_CC_TLS to check if assembler
+ supports TLS and substitute set_have_cc_tls.
+ * configure: Regenerated.
+
2007-07-04 H.J. Lu <hongjiu.lu@intel.com>
* Makefile.in: Use libbid for DFP when BID is enabled.
extra_parts. Add config/i386/t-cygming to tmake_file.
* config/i386/t-cygming: New file with rules for crtbegin.o, crtend.o.
-
2007-05-29 Zuxy Meng <zuxy.meng@gmail.com>
Danny Smith <dannysmith@users.sourceforge.net>
PACKAGE_BUGREPORT=''
ac_unique_file="static-object.mk"
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float vis_hide tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float vis_hide set_have_cc_tls tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS'
ac_subst_files=''
# Initialize some variables set by options.
enable decimal float extension to C. Selecting 'bid'
or 'dpd' choses which decimal floating point format
to use
+ --enable-tls Use thread-local storage [default=yes]
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
fi
+# See if we have thread-local storage. We can only test assembler
+# sicne link-time and run-time tests require the newly built
+# gcc, which can't be used to build executable due to that libgcc
+# is yet to be built here.
+
+ # Check whether --enable-tls or --disable-tls was given.
+if test "${enable_tls+set}" = set; then
+ enableval="$enable_tls"
+
+ case "$enableval" in
+ yes|no) ;;
+ *) { { echo "$as_me:$LINENO: error: Argument to enable/disable tls must be yes or no" >&5
+echo "$as_me: error: Argument to enable/disable tls must be yes or no" >&2;}
+ { (exit 1); exit 1; }; } ;;
+ esac
+
+else
+ enable_tls=yes
+fi;
+
+ echo "$as_me:$LINENO: checking whether the target asssembler upports thread-local storage" >&5
+echo $ECHO_N "checking whether the target asssembler upports thread-local storage... $ECHO_C" >&6
+if test "${have_cc_tls+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ cat >conftest.$ac_ext <<_ACEOF
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ have_cc_tls=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+have_cc_tls=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:$LINENO: result: $have_cc_tls" >&5
+echo "${ECHO_T}$have_cc_tls" >&6
+set_have_cc_tls
+if test "$enable_tls $have_cc_tls" = "yes yes"; then
+ set_have_cc_tls="-DHAVE_CC_TLS"
+fi
+
+
# Conditionalize the makefile for this target machine.
tmake_file_=
for f in ${tmake_file}
s,@decimal_float@,$decimal_float,;t t
s,@enable_decimal_float@,$enable_decimal_float,;t t
s,@vis_hide@,$vis_hide,;t t
+s,@set_have_cc_tls@,$set_have_cc_tls,;t t
s,@tmake_file@,$tmake_file,;t t
s,@extra_parts@,$extra_parts,;t t
s,@asm_hidden_op@,$asm_hidden_op,;t t
dnl Process this file with autoconf to produce a configure script.
+sinclude(../config/enable.m4)
+sinclude(../config/tls.m4)
sinclude(../config/acx.m4)
sinclude(../config/no-executables.m4)
fi
AC_SUBST(vis_hide)
+# See if we have thread-local storage. We can only test assembler
+# sicne link-time and run-time tests require the newly built
+# gcc, which can't be used to build executable due to that libgcc
+# is yet to be built here.
+GCC_CHECK_CC_TLS
+set_have_cc_tls
+if test "$enable_tls $have_cc_tls" = "yes yes"; then
+ set_have_cc_tls="-DHAVE_CC_TLS"
+fi
+AC_SUBST(set_have_cc_tls)
+
# Conditionalize the makefile for this target machine.
tmake_file_=
for f in ${tmake_file}
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