From 008b17d8161ef1d880347bfbbe49336a1446e56e Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Mon, 4 Jun 2012 10:57:23 -0700
Subject: ISA: Turn the ExtMachInst NoopMachinst into the StaticInstPtr
 NoopStaticInst.

This eliminates a use of the ExtMachInst type outside of the ISAs.
---
 src/arch/mips/SConscript    |  1 +
 src/arch/mips/isa_traits.cc | 39 +++++++++++++++++++++++++++++++++++++++
 src/arch/mips/isa_traits.hh |  2 +-
 3 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 src/arch/mips/isa_traits.cc

(limited to 'src/arch/mips')

diff --git a/src/arch/mips/SConscript b/src/arch/mips/SConscript
index 15b4ffc51..ee6fb03f0 100644
--- a/src/arch/mips/SConscript
+++ b/src/arch/mips/SConscript
@@ -40,6 +40,7 @@ if env['TARGET_ISA'] == 'mips':
     Source('idle_event.cc')
     Source('interrupts.cc')
     Source('isa.cc')
+    Source('isa_traits.cc')
     Source('linux/linux.cc')
     Source('linux/process.cc')
     Source('linux/system.cc')
diff --git a/src/arch/mips/isa_traits.cc b/src/arch/mips/isa_traits.cc
new file mode 100644
index 000000000..7cdb6f082
--- /dev/null
+++ b/src/arch/mips/isa_traits.cc
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2012 Google
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#include "arch/mips/generated/decoder.hh"
+#include "arch/mips/isa_traits.hh"
+
+namespace MipsISA
+{
+
+const StaticInstPtr NoopStaticInst = new MipsISAInst::Nop("", 0x00000000);
+
+}
diff --git a/src/arch/mips/isa_traits.hh b/src/arch/mips/isa_traits.hh
index f2a748da9..5884a969b 100644
--- a/src/arch/mips/isa_traits.hh
+++ b/src/arch/mips/isa_traits.hh
@@ -143,7 +143,7 @@ enum mode_type
 };
 
 // return a no-op instruction... used for instruction fetch faults
-const ExtMachInst NoopMachInst = 0x00000000;
+const extern StaticInstPtr NoopStaticInst;
 
 const int LogVMPageSize = 13;       // 8K bytes
 const int VMPageSize = (1 << LogVMPageSize);
-- 
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