containerd/platforms/cpuinfo.go
Tony Fang 8d5c045435 Use uname machine field to get CPU variant if fails at /proc/cpuinfo
When images/containers in ARM arch were built/executed on x86 host,
getCPUVariant will fail as it tries to look for /proc/cpuinfo, whose
content is from the host. Adding a new method as fallback to check uname
machine when it happens.

Signed-off-by: Tony Fang <nenghui.fang@gmail.com>
2022-12-20 21:59:32 +00:00

44 lines
1.1 KiB
Go

/*
Copyright The containerd 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 platforms
import (
"runtime"
"sync"
"github.com/containerd/containerd/log"
)
// Present the ARM instruction set architecture, eg: v7, v8
// Don't use this value directly; call cpuVariant() instead.
var cpuVariantValue string
var cpuVariantOnce sync.Once
func cpuVariant() string {
cpuVariantOnce.Do(func() {
if isArmArch(runtime.GOARCH) {
var err error
cpuVariantValue, err = getCPUVariant()
if err != nil {
log.L.Errorf("Error getCPUVariant for OS %s : %v", runtime.GOOS, err)
}
}
})
return cpuVariantValue
}