mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Adin Scannell
5ba34bd1a5
For all trivial and zero frame-sized functions, we now require an explicit NOFRAME annotation as the heuristic has changed. See go.dev/cl/466316. Most of these functions do not *require* NOFRAME, but this change encodes the existing behavior in order to avoid accidental bugs or regressions. PiperOrigin-RevId: 513946210
78 lines
1.7 KiB
ArmAsm
78 lines
1.7 KiB
ArmAsm
// Copyright 2018 The gVisor 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.
|
|
|
|
// +build amd64
|
|
|
|
#include "textflag.h"
|
|
|
|
TEXT ·andUint32(SB),NOSPLIT|NOFRAME,$0-12
|
|
MOVQ addr+0(FP), BX
|
|
MOVL val+8(FP), AX
|
|
LOCK
|
|
ANDL AX, 0(BX)
|
|
RET
|
|
|
|
TEXT ·orUint32(SB),NOSPLIT|NOFRAME,$0-12
|
|
MOVQ addr+0(FP), BX
|
|
MOVL val+8(FP), AX
|
|
LOCK
|
|
ORL AX, 0(BX)
|
|
RET
|
|
|
|
TEXT ·xorUint32(SB),NOSPLIT|NOFRAME,$0-12
|
|
MOVQ addr+0(FP), BX
|
|
MOVL val+8(FP), AX
|
|
LOCK
|
|
XORL AX, 0(BX)
|
|
RET
|
|
|
|
TEXT ·compareAndSwapUint32(SB),NOSPLIT|NOFRAME,$0-20
|
|
MOVQ addr+0(FP), DI
|
|
MOVL old+8(FP), AX
|
|
MOVL new+12(FP), DX
|
|
LOCK
|
|
CMPXCHGL DX, 0(DI)
|
|
MOVL AX, ret+16(FP)
|
|
RET
|
|
|
|
TEXT ·andUint64(SB),NOSPLIT|NOFRAME,$0-16
|
|
MOVQ addr+0(FP), BX
|
|
MOVQ val+8(FP), AX
|
|
LOCK
|
|
ANDQ AX, 0(BX)
|
|
RET
|
|
|
|
TEXT ·orUint64(SB),NOSPLIT|NOFRAME,$0-16
|
|
MOVQ addr+0(FP), BX
|
|
MOVQ val+8(FP), AX
|
|
LOCK
|
|
ORQ AX, 0(BX)
|
|
RET
|
|
|
|
TEXT ·xorUint64(SB),NOSPLIT|NOFRAME,$0-16
|
|
MOVQ addr+0(FP), BX
|
|
MOVQ val+8(FP), AX
|
|
LOCK
|
|
XORQ AX, 0(BX)
|
|
RET
|
|
|
|
TEXT ·compareAndSwapUint64(SB),NOSPLIT|NOFRAME,$0-32
|
|
MOVQ addr+0(FP), DI
|
|
MOVQ old+8(FP), AX
|
|
MOVQ new+16(FP), DX
|
|
LOCK
|
|
CMPXCHGQ DX, 0(DI)
|
|
MOVQ AX, ret+24(FP)
|
|
RET
|