1 /* 2 * i386 sysarch system call emulation 3 * 4 * Copyright (c) 2013 Stacey D. Son 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program 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 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef BSD_USER_ARCH_SYSARCH_H_ 21 #define BSD_USER_ARCH_SYSARCH_H_ 22 23 #include "target_syscall.h" 24 25 static inline abi_long do_freebsd_arch_sysarch(CPUX86State *env, int op, 26 abi_ulong parms) 27 { 28 abi_long ret = 0; 29 abi_ulong val; 30 int idx; 31 32 switch (op) { 33 case TARGET_FREEBSD_I386_SET_GSBASE: 34 case TARGET_FREEBSD_I386_SET_FSBASE: 35 if (op == TARGET_FREEBSD_I386_SET_GSBASE) { 36 idx = R_GS; 37 } else { 38 idx = R_FS; 39 } 40 if (get_user(val, parms, abi_ulong)) { 41 return -TARGET_EFAULT; 42 } 43 cpu_x86_load_seg(env, idx, 0); 44 env->segs[idx].base = val; 45 break; 46 47 case TARGET_FREEBSD_I386_GET_GSBASE: 48 case TARGET_FREEBSD_I386_GET_FSBASE: 49 if (op == TARGET_FREEBSD_I386_GET_GSBASE) { 50 idx = R_GS; 51 } else { 52 idx = R_FS; 53 } 54 val = env->segs[idx].base; 55 if (put_user(val, parms, abi_ulong)) { 56 return -TARGET_EFAULT; 57 } 58 break; 59 60 /* XXX handle the others... */ 61 default: 62 ret = -TARGET_EINVAL; 63 break; 64 } 65 return ret; 66 } 67 68 static inline void do_freebsd_arch_print_sysarch( 69 const struct syscallname *name, abi_long arg1, abi_long arg2, 70 abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6) 71 { 72 73 gemu_log("%s(%d, " TARGET_ABI_FMT_lx ", " TARGET_ABI_FMT_lx ", " 74 TARGET_ABI_FMT_lx ")", name->name, (int)arg1, arg2, arg3, arg4); 75 } 76 77 #endif /* !BSD_USER_ARCH_SYSARCH_H_ */ 78