1/* $NetBSD: pthread_md.h,v 1.6 2009/05/16 22:20:40 ad Exp $ */ 2 3/*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nathan J. Williams. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#ifndef _LIB_PTHREAD_ALPHA_MD_H 33#define _LIB_PTHREAD_ALPHA_MD_H 34 35#define PTHREAD__ASM_RASOPS 36 37static inline unsigned long 38pthread__sp(void) 39{ 40 unsigned long ret; 41 42 __asm("mov $30, %0" : "=r" (ret)); 43 44 return ret; 45} 46 47#define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_SP]) 48 49/* 50 * Set initial, sane values for registers whose values aren't just 51 * "don't care". 52 * 0x0008 is ALPHA_PSL_USERSET from arch/alpha/include/alpha_cpu.h 53 */ 54#define _INITCONTEXT_U_MD(ucp) \ 55 (ucp)->uc_mcontext.__gregs[_REG_PS] = 0x0008; 56 57#endif /* _LIB_PTHREAD_ALPHA_MD_H */ 58