22 lines
575 B
ArmAsm
22 lines
575 B
ArmAsm
// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
#include "textflag.h"
|
|
|
|
// func cleanAdd(a, b int64) int64
|
|
// A well-behaved function that preserves the goroutine pointer.
|
|
TEXT ·cleanAdd(SB), NOSPLIT, $0-24
|
|
MOVV a+0(FP), R4
|
|
MOVV b+8(FP), R5
|
|
ADDV R4, R5, R4
|
|
MOVV R4, ret+16(FP)
|
|
RET
|
|
|
|
// func dirtyG(a int64) int64
|
|
// Deliberately clobbers g, the goroutine pointer (R22; a serious ABI violation).
|
|
TEXT ·dirtyG(SB), NOSPLIT, $0-16
|
|
MOVV $0x5678, g
|
|
MOVV a+0(FP), R4
|
|
MOVV R4, ret+8(FP)
|
|
RET
|