32 lines
692 B
Go
32 lines
692 B
Go
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// SPDX-FileCopyrightText: 2019 Kent Gibson <warthog618@gmail.com>
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//
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// SPDX-License-Identifier: MIT
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// don't build on platforms with fixed endianness
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//go:build !amd64 && !386
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// +build !amd64,!386
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package uapi
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import (
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"encoding/binary"
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"unsafe"
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)
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// endian to use to decode reads from the local kernel.
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var nativeEndian binary.ByteOrder
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func init() {
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// the standard hack to determine native Endianness.
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buf := [2]byte{}
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*(*uint16)(unsafe.Pointer(&buf[0])) = uint16(0xABCD)
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switch buf {
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case [2]byte{0xCD, 0xAB}:
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nativeEndian = binary.LittleEndian
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case [2]byte{0xAB, 0xCD}:
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nativeEndian = binary.BigEndian
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default:
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panic("Could not determine native endianness.")
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}
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}
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