1 files changed, 106 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/aarch64/bits/syscalls.h b/libc/sysdeps/linux/aarch64/bits/syscalls.h
new file mode 100644
index 000000000..3c0d840ea
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/syscalls.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2016 by Waldemar Brodkorb <wbx@uclibc-ng.org>
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ * ported from GNU libc
+ */
+
+/* Copyright (C) 2005-2016 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 _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+#ifndef __ASSEMBLER__
+#include <errno.h>
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...)	\
+  ({ long _sys_result;					\
+     {							\
+	register long _x8 __asm__ ("x8");		\
+	LOAD_ARGS_##nr (args)				\
+	_x8 = (name);					\
+							\
+        __asm__ volatile (				\
+		"svc       0       // syscall " # name  \
+		: "=r" (_x0) : "r"(_x8) ASM_ARGS_##nr  	\
+		: "memory"); 				\
+							\
+	_sys_result = _x0;				\
+     } 							\
+     _sys_result; })
+
+/* Macros for setting up inline __asm__ input regs */
+# define ASM_ARGS_0
+# define ASM_ARGS_1	, "r" (_x0)
+# define ASM_ARGS_2	ASM_ARGS_1, "r" (_x1)
+# define ASM_ARGS_3	ASM_ARGS_2, "r" (_x2)
+# define ASM_ARGS_4	ASM_ARGS_3, "r" (_x3)
+# define ASM_ARGS_5	ASM_ARGS_4, "r" (_x4)
+# define ASM_ARGS_6	ASM_ARGS_5, "r" (_x5)
+# define ASM_ARGS_7	ASM_ARGS_6, "r" (_x6)
+
+/* Macros for converting sys-call wrapper args into sys call args */
+# define LOAD_ARGS_0()				\
+  register long _x0 __asm__ ("x0");
+# define LOAD_ARGS_1(x0)			\
+  long _x0tmp;					\
+  LOAD_ARGS_0 ()				\
+  _x0tmp = (long) (x0);				\
+  _x0 = _x0tmp;
+# define LOAD_ARGS_2(x0, x1)			\
+  register long _x1 __asm__ ("x1");		\
+  long _x1tmp;					\
+  LOAD_ARGS_1 (x0)				\
+  _x1tmp = (long) (x1);				\
+  _x1 = _x1tmp;
+# define LOAD_ARGS_3(x0, x1, x2)		\
+  register long _x2 __asm__ ("x2");		\
+  long _x2tmp;					\
+  LOAD_ARGS_2 (x0, x1)				\
+  _x2tmp = (long) (x2);				\
+  _x2 = _x2tmp;
+# define LOAD_ARGS_4(x0, x1, x2, x3)		\
+  register long _x3 __asm__ ("x3");		\
+  long _x3tmp;					\
+  LOAD_ARGS_3 (x0, x1, x2)			\
+  _x3tmp = (long) (x3);				\
+  _x3 = _x3tmp;
+# define LOAD_ARGS_5(x0, x1, x2, x3, x4)	\
+  register long _x4 __asm__ ("x4");		\
+  long _x4tmp;					\
+  LOAD_ARGS_4 (x0, x1, x2, x3)			\
+  _x4tmp = (long) (x4);				\
+  _x4 = _x4tmp;
+# define LOAD_ARGS_6(x0, x1, x2, x3, x4, x5)	\
+  register long _x5 __asm__ ("x5");		\
+  long _x5tmp;					\
+  LOAD_ARGS_5 (x0, x1, x2, x3, x4)		\
+  _x5tmp = (long) (x5);				\
+  _x5 = _x5tmp;
+# define LOAD_ARGS_7(x0, x1, x2, x3, x4, x5, x6)\
+  register long _x6 __asm__ ("x6");		\
+  long _x6tmp;					\
+  LOAD_ARGS_6 (x0, x1, x2, x3, x4, x5)		\
+  _x6tmp = (long) (x6);				\
+  _x6 = _x6tmp;
+
+#endif /* ! __ASSEMBLER__  */
+#endif /* _BITS_SYSCALLS_H */