tested under Gentoo Linux, with sys-kernel/linux-headers-3.19 installed
"struct user_pt_regs" is defined at file /usr/include/asm/ptrace.h
Signed-off-by: Yixun Lan <yixun.lan@gmail.com>
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>