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From: "konstantin.s.serebryany at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug other/55354] [asan] by default, the asan run-time should be linked statically, not dynamically
Date: Mon, 19 Nov 2012 09:03:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55354

--- Comment #15 from Konstantin Serebryany <konstantin.s.serebryany at gmail dot com> 2012-11-19 09:03:35 UTC ---
You are right that "-fPIC -ftls-model=initial-exec" does not affect performance 
if we link libtsan statically (I checked). 
As you say, the linker nukes one of the loads. 

But if we link libtsan.so dynamically, we still get both sources of overhead.