/* * Copyright (C) 2017 Hangzhou C-SKY Microsystems co.,ltd. * * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB * in this tarball. */ #include <sysdep.h> .text .align 4 ENTRY (pthread_spin_lock) mov a2, a0 1: movi a0, 0 movi a1, 1 trap 2 // trap 2 use to cmpxchg cmpnei a0, 0 bt 1b movi a0, 0 jmp r15 /* TODO */ END (pthread_spin_lock)
