Re: [PATCH] x86-64: Prevent gcc from optimizing away venosys_1()

From: Andi Kleen
Date: Fri Jun 03 2011 - 16:48:55 EST

> return 0;
> }
> -static long __vsyscall(3) venosys_1(void)
> +long __vsyscall(3) venosys_1(void)

Better add a __used too. Otherwise it can be optimized out again
in some builds e.g. when someone enables gc-sections for the linker.

ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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