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// Copyright 2018 Google LLC
//
// 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 fsutil
import (
"unsafe"
"gvisor.googlesource.com/gvisor/pkg/sentry/safemem"
)
func (*HostFileMapper) unsafeBlockFromChunkMapping(addr uintptr) safemem.Block {
// We don't control the host file's length, so touching its mappings may
// raise SIGBUS. Thus accesses to it must use safecopy.
return safemem.BlockFromUnsafePointer((unsafe.Pointer)(addr), chunkSize)
}
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