From 632a768cf35ab378f5edc3a31f25f635e2f1c40e Mon Sep 17 00:00:00 2001
From: Simeon Pilgrim <simeon.pilgrim@gmail.com>
Date: Fri, 19 Jun 2020 09:38:04 +1200
Subject: [PATCH] copy hasExclusiveAccess pattern into ARM STREX instruction to
 be the same as the THUMB and STREXn instructions

---
 Ghidra/Processors/ARM/data/languages/ARMinstructions.sinc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Ghidra/Processors/ARM/data/languages/ARMinstructions.sinc b/Ghidra/Processors/ARM/data/languages/ARMinstructions.sinc
index 6b17908653..d4c6f5718b 100644
--- a/Ghidra/Processors/ARM/data/languages/ARMinstructions.sinc
+++ b/Ghidra/Processors/ARM/data/languages/ARMinstructions.sinc
@@ -5386,8 +5386,12 @@ armEndianNess: "BE" is c0031=0xf1010200 { export 1:1; }
 :strex^COND  Rd,Rm,[Rn]    is $(AMODE) &  COND & c2027=0x18 & c0411=0xf9 & Rn & Rd & Rm
 {
 	build COND;
-	*Rn = Rm;
+	local tmp = Rn;
+	access:1 = hasExclusiveAccess(tmp);
+	Rd = 1;
+	if (!access) goto inst_next;
 	Rd = 0;
+	*tmp = Rm;
 }
 
 @endif # VERSION_6