xref: /qemu/linux-user/cris/target_cpu.h (revision abff1abf)
1 /*
2  * CRIS specific CPU ABI and functions for linux-user
3  *
4  * Copyright (c) 2007 AXIS Communications AB
5  * Written by Edgar E. Iglesias
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  * 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 CRIS_TARGET_CPU_H
21 #define CRIS_TARGET_CPU_H
22 
23 static inline void cpu_clone_regs_child(CPUCRISState *env, target_ulong newsp,
24                                         unsigned flags)
25 {
26     if (newsp) {
27         env->regs[14] = newsp;
28     }
29     env->regs[10] = 0;
30 }
31 
32 static inline void cpu_clone_regs_parent(CPUCRISState *env, unsigned flags)
33 {
34 }
35 
36 static inline void cpu_set_tls(CPUCRISState *env, target_ulong newtls)
37 {
38     env->pregs[PR_PID] = (env->pregs[PR_PID] & 0xff) | newtls;
39 }
40 
41 static inline abi_ulong get_sp_from_cpustate(CPUCRISState *state)
42 {
43     return state->regs[14];
44 }
45 #endif
46