52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
// Copyright 2019 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proc
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import (
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"bytes"
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"fmt"
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"gvisor.dev/gvisor/pkg/sentry/context"
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"gvisor.dev/gvisor/pkg/sentry/kernel"
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"gvisor.dev/gvisor/pkg/sentry/vfs"
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)
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// mmapMinAddrData implements vfs.DynamicBytesSource for
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// /proc/sys/vm/mmap_min_addr.
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//
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// +stateify savable
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type mmapMinAddrData struct {
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k *kernel.Kernel
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}
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var _ vfs.DynamicBytesSource = (*mmapMinAddrData)(nil)
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// Generate implements vfs.DynamicBytesSource.Generate.
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func (d *mmapMinAddrData) Generate(ctx context.Context, buf *bytes.Buffer) error {
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fmt.Fprintf(buf, "%d\n", d.k.Platform.MinUserAddress())
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return nil
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}
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// +stateify savable
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type overcommitMemory struct{}
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var _ vfs.DynamicBytesSource = (*overcommitMemory)(nil)
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// Generate implements vfs.DynamicBytesSource.Generate.
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func (d *overcommitMemory) Generate(ctx context.Context, buf *bytes.Buffer) error {
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fmt.Fprintf(buf, "0\n")
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return nil
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}
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