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6291ad77 PM |
1 | /* |
2 | * Alpha specific CPU ABI and functions for linux-user | |
3 | * | |
4 | * Copyright (c) 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 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 | */ | |
55c5063c MA |
19 | #ifndef ALPHA_TARGET_CPU_H |
20 | #define ALPHA_TARGET_CPU_H | |
6291ad77 | 21 | |
608999d1 RH |
22 | static inline void cpu_clone_regs_child(CPUAlphaState *env, target_ulong newsp, |
23 | unsigned flags) | |
6291ad77 PM |
24 | { |
25 | if (newsp) { | |
26 | env->ir[IR_SP] = newsp; | |
27 | } | |
28 | env->ir[IR_V0] = 0; | |
29 | env->ir[IR_A3] = 0; | |
5849dfe4 | 30 | env->ir[IR_A4] = 1; /* OSF/1 secondary return: child */ |
6291ad77 PM |
31 | } |
32 | ||
07a6ecf4 RH |
33 | static inline void cpu_clone_regs_parent(CPUAlphaState *env, unsigned flags) |
34 | { | |
5849dfe4 RH |
35 | /* |
36 | * OSF/1 secondary return: parent | |
37 | * Note that the kernel does not do this if SETTLS, because the | |
38 | * settls argument register is still live after copy_thread. | |
39 | */ | |
40 | if (!(flags & CLONE_SETTLS)) { | |
41 | env->ir[IR_A4] = 0; | |
42 | } | |
07a6ecf4 RH |
43 | } |
44 | ||
6291ad77 PM |
45 | static inline void cpu_set_tls(CPUAlphaState *env, target_ulong newtls) |
46 | { | |
47 | env->unique = newtls; | |
48 | } | |
49 | ||
9850f9f6 LV |
50 | static inline abi_ulong get_sp_from_cpustate(CPUAlphaState *state) |
51 | { | |
52 | return state->ir[IR_SP]; | |
53 | } | |
6291ad77 | 54 | #endif |