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ea1ab4cf SS |
1 | /* |
2 | * x86_64 sysarch() syscall emulation | |
3 | * | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
19 | #ifndef BSD_USER_ARCH_SYSARCH_H_ | |
20 | #define BSD_USER_ARCH_SYSARCH_H_ | |
21 | ||
22 | #include "target_syscall.h" | |
23 | ||
24 | static inline abi_long do_freebsd_arch_sysarch(CPUX86State *env, int op, | |
25 | abi_ulong parms) | |
26 | { | |
27 | abi_long ret = 0; | |
28 | abi_ulong val; | |
29 | int idx; | |
30 | ||
31 | switch (op) { | |
32 | case TARGET_FREEBSD_AMD64_SET_GSBASE: | |
33 | case TARGET_FREEBSD_AMD64_SET_FSBASE: | |
34 | if (op == TARGET_FREEBSD_AMD64_SET_GSBASE) { | |
35 | idx = R_GS; | |
36 | } else { | |
37 | idx = R_FS; | |
38 | } | |
39 | if (get_user(val, parms, abi_ulong)) { | |
40 | return -TARGET_EFAULT; | |
41 | } | |
42 | cpu_x86_load_seg(env, idx, 0); | |
43 | env->segs[idx].base = val; | |
44 | break; | |
45 | ||
46 | case TARGET_FREEBSD_AMD64_GET_GSBASE: | |
47 | case TARGET_FREEBSD_AMD64_GET_FSBASE: | |
48 | if (op == TARGET_FREEBSD_AMD64_GET_GSBASE) { | |
49 | idx = R_GS; | |
50 | } else { | |
51 | idx = R_FS; | |
52 | } | |
53 | val = env->segs[idx].base; | |
54 | if (put_user(val, parms, abi_ulong)) { | |
55 | return -TARGET_EFAULT; | |
56 | } | |
57 | break; | |
58 | ||
59 | /* XXX handle the others... */ | |
60 | default: | |
61 | ret = -TARGET_EINVAL; | |
62 | break; | |
63 | } | |
64 | return ret; | |
65 | } | |
66 | ||
67 | static inline void do_freebsd_arch_print_sysarch( | |
68 | const struct syscallname *name, abi_long arg1, abi_long arg2, | |
69 | abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6) | |
70 | { | |
71 | ||
72 | gemu_log("%s(%d, " TARGET_ABI_FMT_lx ", " TARGET_ABI_FMT_lx ", " | |
73 | TARGET_ABI_FMT_lx ")", name->name, (int)arg1, arg2, arg3, arg4); | |
74 | } | |
75 | ||
76 | #endif /*! BSD_USER_ARCH_SYSARCH_H_ */ |