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authorSteve Reinhardt <steve.reinhardt@amd.com>2014-05-12 14:23:31 -0700
committerSteve Reinhardt <steve.reinhardt@amd.com>2014-05-12 14:23:31 -0700
commit109908c2a6322d1fa31c0b486ea2bada14a292b8 (patch)
tree08f7341bba700aeab9b3ee7974bcbad6b0cc0052 /src/arch/sparc
parent72403cb59561a37d42e5b5bc4b0499ddaf9012cf (diff)
downloadgem5-109908c2a6322d1fa31c0b486ea2bada14a292b8.tar.xz
syscall emulation: clean up & comment SyscallReturn
Diffstat (limited to 'src/arch/sparc')
-rw-r--r--src/arch/sparc/process.cc13
1 files changed, 6 insertions, 7 deletions
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc
index 456b8b94a..06b0d18b3 100644
--- a/src/arch/sparc/process.cc
+++ b/src/arch/sparc/process.cc
@@ -532,26 +532,25 @@ Sparc64LiveProcess::setSyscallArg(ThreadContext *tc, int i, IntReg val)
}
void
-SparcLiveProcess::setSyscallReturn(ThreadContext *tc,
- SyscallReturn return_value)
+SparcLiveProcess::setSyscallReturn(ThreadContext *tc, SyscallReturn sysret)
{
// check for error condition. SPARC syscall convention is to
// indicate success/failure in reg the carry bit of the ccr
// and put the return value itself in the standard return value reg ().
PSTATE pstate = tc->readMiscRegNoEffect(MISCREG_PSTATE);
- if (return_value.successful()) {
+ if (sysret.successful()) {
// no error, clear XCC.C
tc->setIntReg(NumIntArchRegs + 2,
- tc->readIntReg(NumIntArchRegs + 2) & 0xEE);
- IntReg val = return_value.value();
+ tc->readIntReg(NumIntArchRegs + 2) & 0xEE);
+ IntReg val = sysret.returnValue();
if (pstate.am)
val = bits(val, 31, 0);
tc->setIntReg(ReturnValueReg, val);
} else {
// got an error, set XCC.C
tc->setIntReg(NumIntArchRegs + 2,
- tc->readIntReg(NumIntArchRegs + 2) | 0x11);
- IntReg val = -return_value.value();
+ tc->readIntReg(NumIntArchRegs + 2) | 0x11);
+ IntReg val = sysret.errnoValue();
if (pstate.am)
val = bits(val, 31, 0);
tc->setIntReg(ReturnValueReg, val);