target_arch_sysarch.h (2209B)
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 TARGET_ARCH_SYSARCH_H 20 #define TARGET_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 /* TARGET_ARCH_SYSARCH_H */