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Re: [RFC][PATCH] make PowerPC64 default to nonexecutable stack
On Wed, Nov 3, 2010 at 16:41, Ryan Arnold <rsa@us.ibm.com> wrote:
> The configure fragment is there to select the correct test-case based on
> the default of the compiler used to build GLIBC. ÂThe testcase
> elf/check-execstack.c assumes PT_GNU_STACK will be present and will
> report an error if it finds otherwise. The testcase
> sysdeps/powerpc/powerpc64/check-execstack.c assumes PT_GNU_STACK will
> not be present and the test binary's stack permissions are checked to
> see if the stack is nonexecutable.
You just include the stackinfo.h header and check whether it PF_X is
set. If set, do today's test. If not, then don't fail if there is no
such program header entry. No need for a configure check.