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a0a839b6 MV |
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 | |
1c79145f | 9 | * version 2.1 of the License, or (at your option) any later version. |
a0a839b6 MV |
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 | ||
43e0c351 MA |
20 | #ifndef NIOS2_TARGET_CPU_H |
21 | #define NIOS2_TARGET_CPU_H | |
a0a839b6 | 22 | |
608999d1 RH |
23 | static inline void cpu_clone_regs_child(CPUNios2State *env, target_ulong newsp, |
24 | unsigned flags) | |
a0a839b6 MV |
25 | { |
26 | if (newsp) { | |
27 | env->regs[R_SP] = newsp; | |
28 | } | |
29 | env->regs[R_RET0] = 0; | |
42192df8 | 30 | env->regs[7] = 0; |
a0a839b6 MV |
31 | } |
32 | ||
07a6ecf4 RH |
33 | static inline void cpu_clone_regs_parent(CPUNios2State *env, unsigned flags) |
34 | { | |
35 | } | |
36 | ||
a0a839b6 MV |
37 | static inline void cpu_set_tls(CPUNios2State *env, target_ulong newtls) |
38 | { | |
39 | /* | |
40 | * Linux kernel 3.10 does not pay any attention to CLONE_SETTLS | |
41 | * in copy_thread(), so QEMU need not do so either. | |
42 | */ | |
43 | } | |
44 | ||
9850f9f6 LV |
45 | static inline abi_ulong get_sp_from_cpustate(CPUNios2State *state) |
46 | { | |
47 | return state->regs[R_SP]; | |
48 | } | |
a0a839b6 | 49 | #endif |