Re: [PATCH, i386]: Fix PR 41900, call *%esp shouldn't be generated because of CPU errata

[Uros Bizjak <ubizjak at gmail dot com>]

On 11/03/2009 06:31 PM, Jakub Jelinek wrote:
> > > > No, this test failed due to missing "volatile" (fixed now). AFAICS, it
> > > > works OK on Fedora 11 and CentOS 5.3.
> > > >
> > > >          
> > > The extra volatile doesn't help at all, it still fails here (Fedora 11,
> > > x86_64 kernel, SELinux enforcing).
> > >
> > >        
> > Hm, indeed. Is there a solution by somehow enabling execution (like
> > trampolines)?
> >      
> You can assemble with -Wa,--execstack or link with -Wl,-z,execstack.
> But it helps only in some cases, some versions of the policy won't allow
> unconfined processes to have exec stack, you'd need to chcon -t java_exec_t
> or similar.  This is highly Linux specific though.
>    

I think I'll just make the test compile-only and scan for call without 
*%esp argument, as you suggested in your previous mails.

Thanks,
Uros.