mcexec: Don't forward SIGTSTP SIGTTIN SIGTTOUT to mckernel

Change-Id: I72bb74d6b98e1f0bf519c8f0fef742624a2a699a
Refs: #1425

test/issues/1425/check_stopsig.sh

@@ -0,0 +1,55 @@
+#!/bin/sh
+
+rc=0
+slptime=3
+
+mcexec=$1
+signame=$2
+
+echo "** Exec sleep ${slptime}"
+mcexec  sleep ${slptime} &
+tgtpid=$!
+
+echo "** TargetPID: ${tgtpid}"
+stat_1=`ps -o stat,pid -p ${tgtpid} | grep ${tgtpid} | cut -f1 -d ' '`
+
+if [ `echo ${stat_1} | grep -e "^S" | wc -l` -eq 1 ]; then
+	echo "[OK] ${tgtpid} is running : ${stat_1}"
+else
+	echo "[NG] ${tgtpid} is NOT running : ${stat_1}"
+	rc=1
+fi
+
+echo "** SEND SIG${signame} to ${tgtpid}"
+kill -${signame} ${tgtpid}
+sleep 1
+
+stat_2=`ps -o stat,pid -p ${tgtpid} | grep ${tgtpid} | cut -f1 -d ' '`
+
+if [ `echo ${stat_2} | grep -e "^T" | wc -l` -eq 1 ]; then
+	echo "[OK] ${tgtpid} is stopped : ${stat_2}"
+else
+	echo "[NG] ${tgtpid} is NOT stopped : ${stat_2}"
+	rc=1
+fi
+
+echo "** Sleep ${slptime} sec"
+sleep ${slptime}
+
+stat_3=`ps -o stat,pid -p ${tgtpid} | grep ${tgtpid} | cut -f1 -d ' '`
+
+if [ `echo ${stat_2} | grep -e "^T" | wc -l` -eq 1 ]; then
+	echo "[OK] ${tgtpid} is still stopped : ${stat_3}"
+else
+	echo "[NG] ${tgtpid} is NOT stopped : ${stat_3}"
+	rc=1
+fi
+
+echo "** SEND SIGCONT to ${tgtpid}"
+kill -CONT ${tgtpid}
+
+echo "** Wait pid: ${tgtpid}"
+wait ${tgtpid}
+
+echo "[OK] pid: ${tgtpid} is Done."
+exit ${rc}