From: Kamil Rytarowski <n54@gmx.com>
Date: Fri, 3 Nov 2017 21:08:52 +0000 (+0000)
Subject: Late fixup in _lwp_exit on TSan/NetBSD
X-Git-Tag: llvmorg-6.0.0-rc1~4176
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e6b53dad4239ff9f651e46fa6cbfba48a299cf9b;p=platform%2Fupstream%2Fllvm.git

Late fixup in _lwp_exit on TSan/NetBSD

Call DestroyThreadState() before REAL(_lwp_exit)();

This variation is less racy.

Sponsored by <The NetBSD Foundation>

llvm-svn: 317369
---

diff --git a/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc b/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
index db92f75..0b4e873 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
@@ -2451,8 +2451,8 @@ TSAN_INTERCEPTOR(void *, __tls_get_addr, void *arg) {
 #if SANITIZER_NETBSD
 TSAN_INTERCEPTOR(void, _lwp_exit) {
   SCOPED_TSAN_INTERCEPTOR(_lwp_exit);
-  REAL(_lwp_exit)();
   DestroyThreadState();
+  REAL(_lwp_exit)();
 }
 #define TSAN_MAYBE_INTERCEPT__LWP_EXIT TSAN_INTERCEPT(_lwp_exit)
 #else