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// Copyright 2018 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 proc
import (
"bytes"
"gvisor.dev/gvisor/pkg/context"
"gvisor.dev/gvisor/pkg/sentry/fs"
"gvisor.dev/gvisor/pkg/sentry/kernel"
)
// LINT.IfChange
func newCPUInfo(ctx context.Context, msrc *fs.MountSource) *fs.Inode {
k := kernel.KernelFromContext(ctx)
features := k.FeatureSet()
if features == nil {
// Kernel is always initialized with a FeatureSet.
panic("cpuinfo read with nil FeatureSet")
}
var buf bytes.Buffer
for i, max := uint(0), k.ApplicationCores(); i < max; i++ {
features.WriteCPUInfoTo(i, &buf)
}
return newStaticProcInode(ctx, msrc, buf.Bytes())
}
// LINT.ThenChange(../../fsimpl/proc/tasks_files.go)
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