Date: Mon, 11 Feb 2013 16:50:25 -0500 From: Rich Felker <dalias@...ifal.cx> To: musl@...ts.openwall.com Subject: Re: [PATCH 2/3] Have different definitions of __pthread_tsd_main agree in size On Mon, Feb 11, 2013 at 04:47:50PM -0500, Rich Felker wrote: > With that said, I don't see any reason this behavior is _desirable_ or > beneficial, so I'm fine with changing it and always using __environ > internally. We could even add a visibility attribute on it so that > GOT/PC-relative accesses get used in compilers which support > visibility, instead of the more expensive accesses through the GOT. Actually this is wrong. __environ might be relocated to the main executable via copy relocations, so it can't be accessed GOT-relative. Giving it protected visibility would actually break this, because of bugs in GCC... Rich
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