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[PATCH, TSAN] Fix missing __tsan_func_exit instrumentation

From: Bernd Edlinger <bernd dot edlinger at hotmail dot de>
To: Jakub Jelinek <jakub at redhat dot com>
Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Dmitry Vyukov <dvyukov at google dot com>, Richard Biener <richard dot guenther at gmail dot com>
Date: Sat, 14 Mar 2015 09:51:07 +0100
Subject: [PATCH, TSAN] Fix missing __tsan_func_exit instrumentation
Authentication-results: sourceware.org; auth=none

Hi,

this patch fixes two cases, where the __tsan_func_entry is present but __tsan_func_exit is missing.
This results in bogus call stacks and memory leaks.

See PR 65400 for stripped down code samples where this was first discovered.


Boot-strapped and regression-tested on x86_64-linux-gnu.
OK for trunk?


Thanks
Bernd.

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