11.2Sriastrad/* $NetBSD: pthread_md.h,v 1.2 2023/05/25 14:30:02 riastradh Exp $ */ 21.1Smatt 31.1Smatt/*- 41.1Smatt * Copyright (c) 2014 The NetBSD Foundation, Inc. 51.1Smatt * All rights reserved. 61.1Smatt * 71.1Smatt * This code is derived from software contributed to The NetBSD Foundation 81.1Smatt * by Matt Thomas of 3am Software Foundry. 91.1Smatt * 101.1Smatt * Redistribution and use in source and binary forms, with or without 111.1Smatt * modification, are permitted provided that the following conditions 121.1Smatt * are met: 131.1Smatt * 1. Redistributions of source code must retain the above copyright 141.1Smatt * notice, this list of conditions and the following disclaimer. 151.1Smatt * 2. Redistributions in binary form must reproduce the above copyright 161.1Smatt * notice, this list of conditions and the following disclaimer in the 171.1Smatt * documentation and/or other materials provided with the distribution. 181.1Smatt * 191.1Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 201.1Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 211.1Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 221.1Smatt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 231.1Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 241.1Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 251.1Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 261.1Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 271.1Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 281.1Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 291.1Smatt * POSSIBILITY OF SUCH DAMAGE. 301.1Smatt */ 311.1Smatt 321.1Smatt#ifndef _LIB_PTHREAD_AARCH64_MD_H 331.1Smatt#define _LIB_PTHREAD_AARCH64_MD_H 341.1Smatt 351.1Smattstatic inline uintptr_t 361.1Smattpthread__sp(void) 371.1Smatt{ 381.1Smatt uintptr_t ret; 391.1Smatt 401.1Smatt __asm __volatile("mov %0, sp" : "=r" (ret)); 411.1Smatt 421.1Smatt return ret; 431.1Smatt} 441.1Smatt 451.2Sriastrad#define pthread__smt_wait() __asm __volatile("wfe") /* wfe */ 461.1Smatt#define pthread__smt_wake() __asm __volatile("sev") /* sev */ 471.1Smatt 481.1Smatt#define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_SP]) 491.1Smatt 501.1Smatt/* 511.1Smatt * Set initial, sane values for registers whose values aren't just 521.1Smatt * "don't care". 531.1Smatt */ 541.1Smatt#define _INITCONTEXT_U_MD(ucp) \ 551.1Smatt (ucp)->uc_mcontext.__gregs[_REG_SPSR] = 0; 561.1Smatt 571.1Smatt#endif /* _LIB_PTHREAD_AARCH64_MD_H */ 58