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arm64: LLVMLinux: Calculate current_thread_info from current_stack_pointer

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Use the global current_stack_pointer to get the value of the stack pointer.
This change supports being able to compile the kernel with both gcc and clang.

Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Reviewed-by: Olof Johansson <olof@lixom.net>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Behan Webster 2014-08-27 05:29:31 +01:00 committed by Will Deacon
parent bb28cec4ea
commit 786248705e
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/include/asm/thread_info.h
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@ -80,8 +80,8 @@ static inline struct thread_info *current_thread_info(void) __attribute_const__;
static inline struct thread_info *current_thread_info(void)
{
register unsigned long sp asm ("sp");
return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
return (struct thread_info *)
(current_stack_pointer & ~(THREAD_SIZE - 1));
}
#define thread_saved_pc(tsk) \