1 /* 2 * PowerPC specific CPU ABI and functions for linux-user 3 * 4 * Copyright (c) 2003-2007 Jocelyn Mayer 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 2.1 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 #ifndef PPC_TARGET_CPU_H 20 #define PPC_TARGET_CPU_H 21 22 static inline void cpu_clone_regs_child(CPUPPCState *env, target_ulong newsp, 23 unsigned flags) 24 { 25 if (newsp) { 26 env->gpr[1] = newsp; 27 } 28 env->gpr[3] = 0; 29 } 30 31 static inline void cpu_clone_regs_parent(CPUPPCState *env, unsigned flags) 32 { 33 } 34 35 static inline void cpu_set_tls(CPUPPCState *env, target_ulong newtls) 36 { 37 #if defined(TARGET_PPC64) 38 /* The kernel checks TIF_32BIT here; we don't support loading 32-bit 39 binaries on PPC64 yet. */ 40 env->gpr[13] = newtls; 41 #else 42 env->gpr[2] = newtls; 43 #endif 44 } 45 46 #ifndef EF_PPC64_ABI 47 #define EF_PPC64_ABI 0x3 48 #endif 49 50 static inline uint32_t get_ppc64_abi(struct image_info *infop) 51 { 52 return infop->elf_flags & EF_PPC64_ABI; 53 } 54 55 static inline abi_ulong get_sp_from_cpustate(CPUPPCState *state) 56 { 57 return state->gpr[1]; 58 } 59 #endif 60