mirror of https://gitee.com/openkylin/qemu.git
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*
|
|
* i386 sysarch system call emulation
|
|
*
|
|
* Copyright (c) 2013 Stacey D. Son
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef BSD_USER_ARCH_SYSARCH_H_
|
|
#define BSD_USER_ARCH_SYSARCH_H_
|
|
|
|
#include "target_syscall.h"
|
|
|
|
static inline abi_long do_freebsd_arch_sysarch(CPUX86State *env, int op,
|
|
abi_ulong parms)
|
|
{
|
|
abi_long ret = 0;
|
|
abi_ulong val;
|
|
int idx;
|
|
|
|
switch (op) {
|
|
case TARGET_FREEBSD_I386_SET_GSBASE:
|
|
case TARGET_FREEBSD_I386_SET_FSBASE:
|
|
if (op == TARGET_FREEBSD_I386_SET_GSBASE) {
|
|
idx = R_GS;
|
|
} else {
|
|
idx = R_FS;
|
|
}
|
|
if (get_user(val, parms, abi_ulong)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
cpu_x86_load_seg(env, idx, 0);
|
|
env->segs[idx].base = val;
|
|
break;
|
|
|
|
case TARGET_FREEBSD_I386_GET_GSBASE:
|
|
case TARGET_FREEBSD_I386_GET_FSBASE:
|
|
if (op == TARGET_FREEBSD_I386_GET_GSBASE) {
|
|
idx = R_GS;
|
|
} else {
|
|
idx = R_FS;
|
|
}
|
|
val = env->segs[idx].base;
|
|
if (put_user(val, parms, abi_ulong)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
|
|
/* XXX handle the others... */
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static inline void do_freebsd_arch_print_sysarch(
|
|
const struct syscallname *name, abi_long arg1, abi_long arg2,
|
|
abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
|
|
{
|
|
|
|
gemu_log("%s(%d, " TARGET_ABI_FMT_lx ", " TARGET_ABI_FMT_lx ", "
|
|
TARGET_ABI_FMT_lx ")", name->name, (int)arg1, arg2, arg3, arg4);
|
|
}
|
|
|
|
#endif /* !BSD_USER_ARCH_SYSARCH_H_ */
|