From: Gabe Black <gblack@eecs.umich.edu>
Date: Sat, 12 May 2007 22:11:44 +0000 (-0700)
Subject: Make sure all addresses used in syscalls are truncated to 32 bits. Actually -all... 
X-Git-Tag: m5_2.0_beta4~311^2~2^2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=debf04aef1b0f662e981507545cdac956dd22a47;p=gem5.git

Make sure all addresses used in syscalls are truncated to 32 bits. Actually -all- arguements are truncated to 32 bits, but we should be able to get away with it.

--HG--
extra : convert_revision : 3b8766c68a4ab36e2e769fac4812657f3f7e0d1c
---

diff --git a/src/cpu/o3/sparc/cpu_impl.hh b/src/cpu/o3/sparc/cpu_impl.hh
index 50d980f55..2e398577e 100644
--- a/src/cpu/o3/sparc/cpu_impl.hh
+++ b/src/cpu/o3/sparc/cpu_impl.hh
@@ -272,7 +272,10 @@ SparcO3CPU<Impl>::getSyscallArg(int i, int tid)
 {
     TheISA::IntReg idx = TheISA::flattenIntIndex(this->tcBase(tid),
             SparcISA::ArgumentReg0 + i);
-    return this->readArchIntReg(idx, tid);
+    TheISA::IntReg val = this->readArchIntReg(idx, tid);
+    if (bits(this->readMiscRegNoEffect(SparcISA::MISCREG_PSTATE, tid), 3, 3))
+        val = bits(val, 31, 0);
+    return val;
 }
 
 template <class Impl>