1 /* $NetBSD: pthread_md.h,v 1.8 2011/01/25 19:12:05 christos 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_HPPA_MD_H 33 #define _LIB_PTHREAD_HPPA_MD_H 34 35 #include <machine/frame.h> 36 37 #define PTHREAD__ASM_RASOPS 38 39 static inline unsigned long 40 pthread__sp(void) 41 { 42 register unsigned long sp __asm("r30"); 43 44 return sp; 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 */ 53 #define _INITCONTEXT_U_MD(ucp) \ 54 (ucp)->uc_mcontext.__gregs[_REG_PSW] = 0x4000f; 55 56 /* 57 * Usable stack space below the ucontext_t. 58 */ 59 #define STACKSPACE (HPPA_FRAME_SIZE) 60 61 /* Don't need additional memory barriers. */ 62 #define PTHREAD__ATOMIC_IS_MEMBAR 63 64 #endif /* !_LIB_PTHREAD_HPPA_MD_H */ 65