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

[Dave Anderson]

----- Original Message -----
> >  	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.

Considering that all of the vsyscall prototypes have this attribute:

#define __vsyscall(nr) \
                __attribute__ ((unused, __section__(".vsyscall_" #nr))) notrace

How would any of them work?

Dave

> 
> -Andi
> --
> ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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