Merge release-20200818.0-54-gcb573c8e0 (automated)

1 files changed, 28 insertions, 0 deletions

diff --git a/pkg/sentry/kernel/kcov_unsafe.go b/pkg/sentry/kernel/kcov_unsafe.go
new file mode 100644
index 000000000..6f64022eb
--- /dev/null
+++ b/pkg/sentry/kernel/kcov_unsafe.go
@@ -0,0 +1,28 @@
+// Copyright 2020 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.
+
+package kernel
+
+import (
+	"unsafe"
+
+	"gvisor.dev/gvisor/pkg/safemem"
+)
+
+// countBlock provides a safemem.BlockSeq for k.count.
+//
+// Like k.count, the block returned is protected by k.mu.
+func (k *Kcov) countBlock() safemem.BlockSeq {
+	return safemem.BlockSeqOf(safemem.BlockFromSafePointer(unsafe.Pointer(&k.count), int(unsafe.Sizeof(k.count))))
+}