1 /*
2  * ARM AArch64 specific CPU ABI and functions for linux-user
3  *
4  * Copyright (c) 2013 Alexander Graf <agraf@suse.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 #ifndef TARGET_CPU_H
20 #define TARGET_CPU_H
21 
22 static inline void cpu_clone_regs(CPUARMState *env, target_ulong newsp)
23 {
24     if (newsp) {
25         env->xregs[31] = newsp;
26     }
27     env->xregs[0] = 0;
28 }
29 
30 static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
31 {
32     /* Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is
33      * different from AArch32 Linux, which uses TPIDRRO.
34      */
35     env->cp15.tpidr_el[0] = newtls;
36 }
37 
38 #endif
39