| 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 |