Internal change.

PiperOrigin-RevId: 265535438

1 files changed, 33 insertions, 0 deletions

diff --git a/test/util/save_util_linux.cc b/test/util/save_util_linux.cc
new file mode 100644
index 000000000..7a0f14342
--- /dev/null
+++ b/test/util/save_util_linux.cc
@@ -0,0 +1,33 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <errno.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "test/util/save_util.h"
+
+namespace gvisor {
+namespace testing {
+
+void MaybeSave() {
+  if (internal::ShouldSave()) {
+    int orig_errno = errno;
+    syscall(SYS_create_module, nullptr, 0);
+    errno = orig_errno;
+  }
+}
+
+}  // namespace testing
+}  // namespace gvisor