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_child(CPUSPARCState *env, target_ulong newsp, 24 unsigned flags) 25 { 26 if (newsp) { 27 env->regwptr[22] = newsp; 28 } 29 /* syscall return for clone child: 0, and clear CF since 30 * this counts as a success return value. 31 */ 32 env->regwptr[0] = 0; 33 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 34 env->xcc &= ~PSR_CARRY; 35 #else 36 env->psr &= ~PSR_CARRY; 37 #endif 38 } 39 40 static inline void cpu_clone_regs_parent(CPUSPARCState *env, unsigned flags) 41 { 42 } 43 44 static inline void cpu_set_tls(CPUSPARCState *env, target_ulong newtls) 45 { 46 env->gregs[7] = newtls; 47 } 48 49 static inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state) 50 { 51 return state->regwptr[WREG_SP]; 52 } 53 54 #endif 55