Re: [Valgrind-developers] Finding the highest user-space address

[Oswald B. <os...@kd...>]

On Fri, Aug 27, 2004 at 08:17:47AM +1000, Paul Mackerras wrote:
> Nicholas Nethercote writes:
> > One possibility is to look at the address of a stack variable, and
> > round up a bit.  This is really simple but assumes that the stack is
> > at the top of the user-space.
> 
> That is always true on Linux on all the architectures that Valgrind
> has been ported to. :)  Well, it's almost true, since we might have a
> VDSO just above the stack, but it's true to say that we can't mmap
> anything at any higher address than the stack.
> 
it's been at least discussed to move the stack down; i think ingo (?)
even had some patches in/for redhat already.

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