libgo/testsuite: don't call kill without args

If the timeout subshell has no child processes, the "xargs | kill" will fail. Ensure there is some input for kill before calling it. Change-Id: Ifd2cb1ddf6d25c70cfa1d36a2b0171ee6e0f1c72 Reviewed-on: https://go-review.googlesource.com/13295 Reviewed-by: Ian Lance Taylor <[email protected]>
golang · Aug 7, 2015 · 5891a4c · 5891a4c
1 parent 6fb7c35
commit 5891a4c
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/libgo/testsuite/gotest b/libgo/testsuite/gotest
@@ -518,7 +518,10 @@ xno)
 		wait $pid
 		status=$?
 		if ! test -f gotest-timeout; then
-		    ps -o pid,ppid | grep " $alarmpid" | cut -f1 -d" " | xargs kill -9
+		    out=`ps -o pid,ppid | grep " $alarmpid" | cut -f1 -d" "`
+		    if test "x$out" != "x"; then
+		        kill -9 $out
+		    fi
 		fi
 	else
 		if test "$trace" = "true"; then