when recording an rr trace, use libtool

when running a system test with the USE_RR environment
variable set to 1, an rr trace is generated for named.
because rr wasn't run using libtool --mode=execute, the
trace would actually be generated for the wrapper script
generated by libtool, not for the actual named binary.

diff --git a/bin/tests/system/start.pl b/bin/tests/system/start.pl
index f8faac91a76855604cb05b3a1bea0ce4bc58752a..9110b5231aa46c2714d248cca6c6f5847cb5be8b 100755 (executable)
--- a/bin/tests/system/start.pl
+++ b/bin/tests/system/start.pl
@@ -234,7 +234,7 @@ sub construct_ns_command {
                $command = "taskset $taskset $NAMED ";
        } elsif ($ENV{'USE_RR'}) {
                $ENV{'_RR_TRACE_DIR'} = ".";
-               $command = "rr record --chaos $NAMED ";
+               $command = "$ENV{'TOP_BUILDDIR'}/libtool --mode=execute rr record --chaos $NAMED ";
        } else {
                $command = "$NAMED ";
        }