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📁 ..
📄 atomic_386.go(2.22 KB)
📄 atomic_386.s(6.53 KB)
📄 atomic_amd64.go(2.46 KB)
📄 atomic_amd64.s(5.18 KB)
📄 atomic_andor_generic.go(1.06 KB)
📄 atomic_andor_test.go(5.14 KB)
📄 atomic_arm.go(4.74 KB)
📄 atomic_arm.s(5.69 KB)
📄 atomic_arm64.go(2.15 KB)
📄 atomic_arm64.s(8.26 KB)
📄 atomic_loong64.go(1.76 KB)
📄 atomic_loong64.s(5.25 KB)
📄 atomic_mips64x.go(1.77 KB)
📄 atomic_mips64x.s(6.08 KB)
📄 atomic_mipsx.go(2.66 KB)
📄 atomic_mipsx.s(4.3 KB)
📄 atomic_ppc64x.go(2.12 KB)
📄 atomic_ppc64x.s(7.49 KB)
📄 atomic_riscv64.go(2.03 KB)
📄 atomic_riscv64.s(6.99 KB)
📄 atomic_s390x.go(2.12 KB)
📄 atomic_s390x.s(5.89 KB)
📄 atomic_test.go(8.52 KB)
📄 atomic_wasm.go(5.32 KB)
📄 atomic_wasm.s(269 B)
📄 bench_test.go(3.24 KB)
📄 doc.go(771 B)
📄 stubs.go(1.23 KB)
📄 sys_linux_arm.s(2.84 KB)
📄 sys_nonlinux_arm.s(1.33 KB)
📄 types.go(14.23 KB)
📄 types_64bit.go(1.1 KB)
📄 unaligned.go(246 B)

Editing: sys_nonlinux_arm.s

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build !linux

#include "textflag.h"

// TODO(minux): this is only valid for ARMv6+
// bool armcas(int32 *val, int32 old, int32 new)
// Atomically:
//	if(*val == old){
//		*val = new;
//		return 1;
//	}else
//		return 0;
TEXT	·Cas(SB),NOSPLIT,$0
	JMP	·armcas(SB)

// Non-linux OSes support only single processor machines before ARMv7.
// So we don't need memory barriers if goarm < 7. And we fail loud at
// startup (runtime.checkgoarm) if it is a multi-processor but goarm < 7.

TEXT	·Load(SB),NOSPLIT|NOFRAME,$0-8
	MOVW	addr+0(FP), R0
	MOVW	(R0), R1

MOVB	runtime·goarm(SB), R11
	CMP	$7, R11
	BLT	2(PC)
	DMB	MB_ISH

MOVW	R1, ret+4(FP)
	RET

TEXT	·Store(SB),NOSPLIT,$0-8
	MOVW	addr+0(FP), R1
	MOVW	v+4(FP), R2

MOVB	runtime·goarm(SB), R8
	CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH

MOVW	R2, (R1)

CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH
	RET

TEXT	·Load8(SB),NOSPLIT|NOFRAME,$0-5
	MOVW	addr+0(FP), R0
	MOVB	(R0), R1

MOVB	runtime·goarm(SB), R11
	CMP	$7, R11
	BLT	2(PC)
	DMB	MB_ISH

MOVB	R1, ret+4(FP)
	RET

TEXT	·Store8(SB),NOSPLIT,$0-5
	MOVW	addr+0(FP), R1
	MOVB	v+4(FP), R2

MOVB	runtime·goarm(SB), R8
	CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH

MOVB	R2, (R1)

CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH
	RET

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Editing: sys_nonlinux_arm.s

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