1 /* 2 * SPARC specific CPU ABI and functions for linux-user 3 * 4 * Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at> 5 * Copyright (C) 2003-2005 Fabrice Bellard 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 #ifndef SPARC_TARGET_CPU_H 21 #define SPARC_TARGET_CPU_H 22 23 static inline void cpu_clone_regs(CPUSPARCState *env, target_ulong newsp) 24 { 25 if (newsp) { 26 env->regwptr[22] = newsp; 27 } 28 /* syscall return for clone child: 0, and clear CF since 29 * this counts as a success return value. 30 */ 31 env->regwptr[0] = 0; 32 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 33 env->xcc &= ~PSR_CARRY; 34 #else 35 env->psr &= ~PSR_CARRY; 36 #endif 37 } 38 39 static inline void cpu_set_tls(CPUSPARCState *env, target_ulong newtls) 40 { 41 env->gregs[7] = newtls; 42 } 43 44 #ifndef UREG_I6 45 #define UREG_I6 6 46 #endif 47 #ifndef UREG_FP 48 #define UREG_FP UREG_I6 49 #endif 50 51 static inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state) 52 { 53 return state->regwptr[UREG_FP]; 54 } 55 #endif 56