Re: [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2

[Jakub Jelinek]

On Fri, Jun 04, 2004 at 06:13:04PM +0200, Andi Kleen wrote:
> Of course that is only for the stack. Making the heap non executable
> is another can of worms. I don't know if Fedora does that
> too, SUSE and mainline x86-64 doesn't.

When I added PT_GNU_STACK, it was meant from the beginning as
stack+heap+mmap w/o PROT_EXEC executability/non-executability.
I don't think it makes any sense to have separate bits for heap and stack.
Any program which assumes PROT_READ implies PROT_EXEC just can be marked
PT_GNU_STACK PF_X.

	Jakub
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