/* $NetBSD: pthread_md.h,v 1.6 2008/04/28 20:23:02 martin Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Nathan J. Williams. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _LIB_PTHREAD_VAX_MD_H #define _LIB_PTHREAD_VAX_MD_H static inline long pthread__sp(void) { long ret; __asm("movl %%sp,%0" : "=r" (ret)); return ret; } #define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_SP]) #define pthread__uc_pc(ucp) ((ucp)->uc_mcontext.__gregs[_REG_PC]) /* * Set initial, sane values for registers whose values aren't just * "don't care". * 0x03c00000 is PSL_U|PSL_PREVU from arch/vax/include/psl.h */ #define _INITCONTEXT_U_MD(ucp) \ (ucp)->uc_mcontext.__gregs[_REG_PSL] = 0x03c00000; #define STACKSPACE 0 /* * Conversions between struct reg and struct mcontext. Used by * libpthread_dbg. */ #define PTHREAD_UCONTEXT_TO_REG(reg, uc) do { \ memcpy((reg), &(uc)->uc_mcontext.__gregs, 17 * sizeof(__greg_t)); \ (reg)->fp = (uc)->uc_mcontext.__gregs[_REG_FP]; \ (reg)->sp = (uc)->uc_mcontext.__gregs[_REG_SP]; \ } while (/*CONSTCOND*/0) #define PTHREAD_REG_TO_UCONTEXT(uc, reg) do { \ memcpy(&(uc)->uc_mcontext.__gregs, (reg), 17 * sizeof(__greg_t)); \ (uc)->uc_mcontext.__gregs[_REG_FP] = (reg)->fp; \ (uc)->uc_mcontext.__gregs[_REG_SP] = (reg)->sp; \ (uc)->uc_flags = ((uc)->uc_flags | _UC_CPU) & ~_UC_USER; \ } while (/*CONSTCOND*/0) #define PTHREAD_UCONTEXT_TO_FPREG(reg, uc) do { \ } while (/*CONSTCOND*/0) #define PTHREAD_FPREG_TO_UCONTEXT(uc, reg) do { \ } while (/*CONSTCOND*/0) /* Don't need additional memory barriers. */ #define PTHREAD__ATOMIC_IS_MEMBAR #endif /* _LIB_PTHREAD_VAX_MD_H */