===================================================================
@@ -65,6 +65,7 @@ bind-now = @bindnow@
have-hash-style = @libc_cv_hashstyle@
use-default-link = @use_default_link@
output-format = @libc_cv_output_format@
+have-arm-tls-desc = @have_arm_tls_desc@
static-libgcc = @libc_cv_gcc_static_libgcc@
===================================================================
@@ -581,6 +581,7 @@ shared
static
ldd_rewrite_script
use_ldconfig
+have_arm_tls_desc
libc_cv_forced_unwind
libc_cv_rootsbindir
libc_cv_localstatedir
@@ -7225,6 +7226,7 @@ libc_cv_sysconfdir=$sysconfdir
libc_cv_localstatedir=$localstatedir
libc_cv_gcc_unwind_find_fde=no
libc_cv_idn=no
+have_arm_tls_desc=no
# Iterate over all the sysdep directories we will use, running their
# configure fragments.
@@ -7295,6 +7297,8 @@ fi
+
+
if test x$use_ldconfig = xyes; then
$as_echo "#define USE_LDCONFIG 1" >>confdefs.h
===================================================================
@@ -2065,6 +2065,7 @@ libc_cv_sysconfdir=$sysconfdir
libc_cv_localstatedir=$localstatedir
libc_cv_gcc_unwind_find_fde=no
libc_cv_idn=no
+have_arm_tls_desc=no
# Iterate over all the sysdep directories we will use, running their
# configure fragments.
@@ -2127,6 +2128,8 @@ AC_SUBST(libc_cv_localstatedir)
AC_SUBST(libc_cv_rootsbindir)
AC_SUBST(libc_cv_forced_unwind)
+AC_SUBST(have_arm_tls_desc)
+
if test x$use_ldconfig = xyes; then
AC_DEFINE(USE_LDCONFIG)
fi
===================================================================
@@ -11,6 +11,16 @@ $(objpfx)libgcc-stubs.a: $(objpfx)aeabi_
$(build-extra-lib)
lib-noranlib: $(objpfx)libgcc-stubs.a
+
+ifeq ($(build-shared),yes)
+ifeq ($(have-arm-tls-desc),yes)
+tests += tst-armtlsdesc
+modules-names += tst-armtlsdescmod
+CFLAGS-tst-armtlsdescmod.c += -mtls-dialect=gnu2
+tst-armtlsdesc-ENV = LD_BIND_NOW=1
+$(objpfx)tst-armtlsdesc: $(objpfx)tst-armtlsdescmod.so
+endif
+endif
endif
ifeq ($(subdir),csu)
===================================================================
@@ -203,3 +203,33 @@ else
config_vars="$config_vars
default-abi = soft"
fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the build tools support the GNU descriptor TLS scheme" >&5
+$as_echo_n "checking whether the build tools support the GNU descriptor TLS scheme... " >&6; }
+if ${libc_cv_arm_tls_desc+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ old_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -mtls-dialect=gnu2"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+asm (".word\tfoo(tlsdesc)");
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ libc_cv_arm_tls_desc=yes
+else
+ libc_cv_arm_tls_desc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CFLAGS="$old_CFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arm_tls_desc" >&5
+$as_echo "$libc_cv_arm_tls_desc" >&6; }
+have_arm_tls_desc=$libc_cv_arm_tls_desc
===================================================================
@@ -44,3 +44,12 @@ if test $libc_cv_arm_pcs_vfp = yes; then
else
LIBC_CONFIG_VAR([default-abi], [soft])
fi
+
+AC_CACHE_CHECK([whether the build tools support the GNU descriptor TLS scheme],
+ [libc_cv_arm_tls_desc],
+ [old_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -mtls-dialect=gnu2"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([asm (".word\tfoo(tlsdesc)");], [])],
+ [libc_cv_arm_tls_desc=yes], [libc_cv_arm_tls_desc=no])
+ CFLAGS="$old_CFLAGS"])
+have_arm_tls_desc=$libc_cv_arm_tls_desc
===================================================================
@@ -452,7 +452,10 @@ elf_machine_rel (struct link_map *map, c
else
# endif
{
- value = sym->st_value + td->argument.value;
+ if (td->argument.value & 0x80000000)
+ value = sym->st_value;
+ else
+ value = td->argument.value;
# ifndef RTLD_BOOTSTRAP
# ifndef SHARED
===================================================================
@@ -0,0 +1,28 @@
+/* ARM immediate binding GNU TLS descriptor relocation test.
+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+int getfoo (void);
+
+int
+do_test (void)
+{
+ return getfoo ();
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
===================================================================
@@ -0,0 +1,25 @@
+/* DSO used for ARM immediate binding GNU TLS descriptor relocation test.
+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+int __thread foo;
+
+int
+getfoo (void)
+{
+ return foo;
+}