[PATCH 1/5] Use protected visibility for _rtld_global and _rtld_global_ro

[Peter Collingbourne]

On Mon, May 13, 2013 at 6:31 PM, Richard Henderson <rth@twiddle.net> wrote:
> On 05/13/2013 08:36 AM, Peter Collingbourne wrote:
>> _rtld_local was created back in 2002 (see commit 0d01dac), and the
>> protected attribute removed on _rtld_global, for an undocumented
>> reason...
>
> Protected visibility requires more runtime overhead in the dynamic linker.

Ah.  Now that I've read Ian's article (properly) I see what the issue is.
I'll try a few things and also see if this can be dealt with on the LLVM side.

Peter