From 554b2fe91b9e1d85b1f29fdc57436e46cd1f2cd8 Mon Sep 17 00:00:00 2001
From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Mon, 28 May 2012 11:51:50 +0000
Subject: [PATCH] Let valgrind check the tls argument if the appropriate flag
 is set

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12591
---
 coregrind/m_syswrap/syswrap-s390x-linux.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/coregrind/m_syswrap/syswrap-s390x-linux.c b/coregrind/m_syswrap/syswrap-s390x-linux.c
index 6dd3cc695e..05c7d6de55 100644
--- a/coregrind/m_syswrap/syswrap-s390x-linux.c
+++ b/coregrind/m_syswrap/syswrap-s390x-linux.c
@@ -965,6 +965,13 @@ PRE(sys_clone)
       }
    }
 
+   /* The kernel simply copies reg6 (ARG5) into AR0 and AR1, no checks */
+   if (ARG2 & VKI_CLONE_SETTLS) {
+      if (VG_(tdict).track_pre_reg_read) {
+         PRA5("clone", Addr, tlsinfo);
+      }
+   }
+
    cloneflags = ARG2;
 
    if (!ML_(client_signal_OK)(ARG2 & VKI_CSIGNAL)) {
-- 
2.47.2