struct process: fix type of group_exit_status

Change-Id: Ib8492cbb077106cef1d0fa2d6d5e8e13bbb209c0
Refs: #1377

test/issues/1377/C1377.sh

@@ -0,0 +1,56 @@
+#!/bin/sh
+USELTP=1
+USEOSTEST=0
+
+. ../../common.sh
+
+################################################################################
+if [ ! -f "$LTPBIN/dirtyc0w" ]; then
+	echo BAD environment: LTP is too old >&2
+	exit 1
+fi
+
+echo "*** C1377T01 start"
+ng=0
+ok=0
+tp=dirtyc0w
+for ((i=0; i<20; i++)); do
+	for ((j=0; j<50; j++)); do
+		sudo PATH=$PATH:$LTPBIN $MCEXEC $LTPBIN/$tp > $tp.txt 2>&1
+		wok=`grep PASS $tp.txt | wc -l`
+		wng=`grep FAIL $tp.txt | wc -l`
+		if [ $wng != 0 ]; then
+			echo -n '*'
+			ng=`expr $ng + 1`
+		elif [ $wok == 0 ]; then
+			echo -n '?'
+		else
+			echo -n '.'
+			ok=`expr $ok + 1`
+		fi
+	done
+	echo
+done
+
+if [ $ng != 0 ]; then
+	echo "*** C1377T01 FAILED ok: $ok, ng: $ng"
+else
+	echo "*** C1377T01 PASS ok: $ok"
+fi
+
+
+
+for i in wait02:02 wait401:03 waitpid01:04 waitpid02:05 waitpid04:06 \
+	 waitpid05:07 waitpid06:08 waitpid07:09 waitpid08:10 waitpid09:11 \
+	 waitpid10:12 waitpid11:13 waitpid12:14 waitpid13:15; do
+	tp=`echo $i|sed 's/:.*//'`
+	id=`echo $i|sed 's/.*://'`
+	sudo PATH=$PATH:$LTPBIN $MCEXEC $LTPBIN/$tp 2>&1 | tee $tp.txt
+	ok=`grep PASS $tp.txt | wc -l`
+	ng=`grep FAIL $tp.txt | wc -l`
+	if [ $ng = 0 ]; then
+		echo "*** C1377T$id: $tp PASS ($ok)"
+	else
+		echo "*** C1377T$id: $tp FAIL (ok=$ok ng=$ng)"
+	fi
+done