k3s/vendor/github.com/cilium/ebpf/internal/endian.go
Brad Davidson e204d863a5 Update Kubernetes to v1.22.1
* Update Kubernetes to v1.22.1
* Update dependent modules to track with upstream

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2021-08-20 18:47:16 -07:00

30 lines
595 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
// Clang is set to either "el" or "eb" depending on the host's endianness.
var ClangEndian string
func init() {
if isBigEndian() {
NativeEndian = binary.BigEndian
ClangEndian = "eb"
} else {
NativeEndian = binary.LittleEndian
ClangEndian = "el"
}
}
func isBigEndian() (ret bool) {
i := int(0x1)
bs := (*[int(unsafe.Sizeof(i))]byte)(unsafe.Pointer(&i))
return bs[0] == 0
}