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authorGiacomo Travaglini <giacomo.travaglini@arm.com>2017-11-27 18:17:25 +0000
committerGiacomo Travaglini <giacomo.travaglini@arm.com>2017-11-28 12:00:30 +0000
commite7bff655aa48da0fd1e7656bc10b66473f34aa2a (patch)
treed8b228f49c3f44bd727b5d5575d361c5cda159a2 /src/arch/arm/system.hh
parentd92e96732966ee48db3f8283367c0a1ffd84c1a7 (diff)
downloadgem5-e7bff655aa48da0fd1e7656bc10b66473f34aa2a.tar.xz
arch-arm: Add assertions when extracting an ArmSystem from a TC
We sometimes need to cast the System pointer stored in a ThreadContext to an ArmSystem pointer to query global system setting. Add an assertion to make sure that the cast resulted in a valid pointer. Change-Id: Id382d0c1dceefee8f74d070c205c7b43b83ab215 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/6161 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Diffstat (limited to 'src/arch/arm/system.hh')
-rw-r--r--src/arch/arm/system.hh8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/arch/arm/system.hh b/src/arch/arm/system.hh
index 97769337a..b81ec05f9 100644
--- a/src/arch/arm/system.hh
+++ b/src/arch/arm/system.hh
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2010, 2012-2013, 2015-2016 ARM Limited
+ * Copyright (c) 2010, 2012-2013, 2015-2017 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
@@ -228,6 +228,12 @@ class ArmSystem : public System
*/
const AddrRange &m5opRange() const { return _m5opRange; }
+ /**
+ * Returns a valid ArmSystem pointer if using ARM ISA, it fails
+ * otherwise.
+ */
+ static ArmSystem* getArmSystem(ThreadContext *tc);
+
/** Returns true if the system of a specific thread context implements the
* Security Extensions
*/