1 /* 2 * Nios2 specific CPU ABI and functions for linux-user 3 * 4 * Copyright (c) 2016 Marek Vasut <marex@denx.de> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef TARGET_CPU_H 21 #define TARGET_CPU_H 22 23 static inline void cpu_clone_regs(CPUNios2State *env, target_ulong newsp) 24 { 25 if (newsp) { 26 env->regs[R_SP] = newsp; 27 } 28 env->regs[R_RET0] = 0; 29 } 30 31 static inline void cpu_set_tls(CPUNios2State *env, target_ulong newtls) 32 { 33 /* 34 * Linux kernel 3.10 does not pay any attention to CLONE_SETTLS 35 * in copy_thread(), so QEMU need not do so either. 36 */ 37 } 38 39 static inline abi_ulong get_sp_from_cpustate(CPUNios2State *state) 40 { 41 return state->regs[R_SP]; 42 } 43 #endif 44