ARM: Split Linuxism out of sysdeps/arm/nptl/tls.h

1 files changed, 42 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/arm/tls.h b/sysdeps/unix/sysv/linux/arm/tls.h
new file mode 100644
index 0000000..bfb76b3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/tls.h
@@ -0,0 +1,42 @@
+/* Definition for thread-local data handling.  ARM/Linux version.
+   Copyright (C) 2005-2014 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/>.  */
+
+#ifndef _LINUX_ARM_TLS_H
+#define _LINUX_ARM_TLS_H	1
+
+/* Almost everything is OS-independent and common for all NPTL on ARM.  */
+#include <sysdeps/arm/nptl/tls.h>
+
+#ifndef __ASSEMBLER__
+
+/* Get system call information.  */
+# include <sysdep.h>
+
+/* Code to initially initialize the thread pointer.  This might need
+   special attention since 'errno' is not yet available and if the
+   operation can cause a failure 'errno' must not be touched.  */
+# define TLS_INIT_TP(tcbp) \
+  ({ INTERNAL_SYSCALL_DECL (err);					\
+     long int result_var;						\
+     result_var = INTERNAL_SYSCALL_ARM (set_tls, err, 1, (tcbp));	\
+     INTERNAL_SYSCALL_ERROR_P (result_var, err)				\
+       ? "unknown error" : NULL; })
+
+#endif /* __ASSEMBLER__ */
+
+#endif  /* tls.h */