/* $NetBSD: pthread_md.h,v 1.5 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_ALPHA_MD_H #define _LIB_PTHREAD_ALPHA_MD_H #define PTHREAD__ASM_RASOPS static inline long pthread__sp(void) { long ret; __asm("mov $30, %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". * 0x0008 is ALPHA_PSL_USERSET from arch/alpha/include/alpha_cpu.h */ #define _INITCONTEXT_U_MD(ucp) \ (ucp)->uc_mcontext.__gregs[_REG_PS] = 0x0008; #define STACKSPACE 32 /* 4 quad values */ /* * Conversions between struct reg and struct mcontext. Used by * libpthread_dbg. */ #define PTHREAD_UCONTEXT_TO_REG(reg, uc) do { \ memcpy(&(reg)->r_regs, &(uc)->uc_mcontext.__gregs, \ 31 * sizeof(__greg_t)); \ (reg)->r_regs[R_ZERO] = (uc)->uc_mcontext.__gregs[_REG_PC]; \ } while (/*CONSTCOND*/0) #define PTHREAD_REG_TO_UCONTEXT(uc, reg) do { \ memcpy(&(uc)->uc_mcontext.__gregs, &(reg)->r_regs, \ 31 * sizeof(__greg_t)); \ (uc)->uc_mcontext.__gregs[_REG_PC] = (reg)->r_regs[R_ZERO]; \ (uc)->uc_flags = ((uc)->uc_flags | _UC_CPU) & ~_UC_USER; \ } while (/*CONSTCOND*/0) #define PTHREAD_UCONTEXT_TO_FPREG(freg, uc) \ memcpy((freg), &(uc)->uc_mcontext.__fpregs, \ sizeof(struct fpreg)) \ #define PTHREAD_FPREG_TO_UCONTEXT(uc, freg) do { \ memcpy(&(uc)->uc_mcontext.__fpregs, (freg), \ sizeof(struct fpreg)); \ (uc)->uc_flags = ((uc)->uc_flags | _UC_FPU) & ~_UC_USER; \ } while (/*CONSTCOND*/0) #endif /* _LIB_PTHREAD_ALPHA_MD_H */