containerd/vendor/github.com/cilium/ebpf/internal/endian.go
Akihiro Suda 8f870c233f support cgroup2
* only shim v2 runc v2 ("io.containerd.runc.v2") is supported
* only PID metrics is implemented. Others should be implemented in separate PRs.
* lots of code duplication in v1 metrics and v2 metrics. Dedupe should be separate PR.

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
2019-12-12 02:56:51 +09:00

25 lines
454 B
Go

package internal
import (
"encoding/binary"
"unsafe"
)
// NativeEndian is set to either binary.BigEndian or binary.LittleEndian,
// depending on the host's endianness.
var NativeEndian binary.ByteOrder
func init() {
if isBigEndian() {
NativeEndian = binary.BigEndian
} else {
NativeEndian = binary.LittleEndian
}
}
func isBigEndian() (ret bool) {
i := int(0x1)
bs := (*[int(unsafe.Sizeof(i))]byte)(unsafe.Pointer(&i))
return bs[0] == 0
}