From 3337a10e0d0cbc9225cefc23aa7a604b698367ed Mon Sep 17 00:00:00 2001
From: Behan Webster <behanw@converseincode.com>
Date: Wed, 27 Aug 2014 05:29:29 +0100
Subject: [PATCH] arm64: LLVMLinux: Add current_stack_pointer() for arm64
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Define a global named register for current_stack_pointer. The use of this new
variable guarantees that both gcc and clang can access this register in C code.

Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Olof Johansson <olof@lixom.net>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
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