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Re: RFC: PATCHES: Properly handle reference to protected data on x86
- From: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, GNU C Library <libc-alpha at sourceware dot org>, Binutils <binutils at sourceware dot org>
- Date: Fri, 06 Mar 2015 11:01:38 +0000
- Subject: Re: RFC: PATCHES: Properly handle reference to protected data on x86
- Authentication-results: sourceware.org; auth=none
- References: <CAMe9rOoKS4BwBSd2T+bcchYOykZ7Gzh2jCMC5J6r0qyEX1u0_Q at mail dot gmail dot com>
On 04/03/15 23:26, H.J. Lu wrote:
> Protected symbol means that it can't be pre-emptied. It
> doesn't mean its address won't be external. This is true
> for pointer to protected function. With copy relocation,
> address of protected data defined in the shared library may
> also be external. We only know that for sure at run-time.
> Here are patches for glibc, binutils and GCC to handle it
> Any comments?
i think this fixes