52f82acb7b
See containerd/btrfs PR 40 and moby/moby PR 44761. (Thanks to [@]neersighted.) The containerd/btrfs library now requires headers from kernel 4.12 or newer: - https://github.com/torvalds/linux/blob/master/include/uapi/linux/btrfs.h - https://github.com/torvalds/linux/blob/master/include/uapi/linux/btrfs_tree.h These files are licensed under the GPL-2.0 WITH Linux-syscall-note, so it should be compatible with the Apache License 2.0. https://spdx.org/licenses/Linux-syscall-note.html The dependency on the kernel headers only affects users building from source. Users on older kernels may opt to not compile this library (`BUILDTAGS=no_btfs`), or to provide headers from a newer kernel. Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
29 lines
642 B
ArmAsm
29 lines
642 B
ArmAsm
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build (386 || amd64 || amd64p32) && gc
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// +build 386 amd64 amd64p32
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// +build gc
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#include "textflag.h"
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// func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
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TEXT ·cpuid(SB), NOSPLIT, $0-24
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MOVL eaxArg+0(FP), AX
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MOVL ecxArg+4(FP), CX
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CPUID
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MOVL AX, eax+8(FP)
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MOVL BX, ebx+12(FP)
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MOVL CX, ecx+16(FP)
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MOVL DX, edx+20(FP)
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RET
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// func xgetbv() (eax, edx uint32)
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TEXT ·xgetbv(SB),NOSPLIT,$0-8
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MOVL $0, CX
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XGETBV
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MOVL AX, eax+0(FP)
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MOVL DX, edx+4(FP)
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RET
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