77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
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/*
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* x86_64 sysarch() syscall emulation
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef BSD_USER_ARCH_SYSARCH_H_
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#define BSD_USER_ARCH_SYSARCH_H_
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#include "target_syscall.h"
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static inline abi_long do_freebsd_arch_sysarch(CPUX86State *env, int op,
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abi_ulong parms)
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{
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abi_long ret = 0;
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abi_ulong val;
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int idx;
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switch (op) {
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case TARGET_FREEBSD_AMD64_SET_GSBASE:
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case TARGET_FREEBSD_AMD64_SET_FSBASE:
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if (op == TARGET_FREEBSD_AMD64_SET_GSBASE) {
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idx = R_GS;
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} else {
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idx = R_FS;
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}
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if (get_user(val, parms, abi_ulong)) {
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return -TARGET_EFAULT;
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}
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cpu_x86_load_seg(env, idx, 0);
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env->segs[idx].base = val;
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break;
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case TARGET_FREEBSD_AMD64_GET_GSBASE:
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case TARGET_FREEBSD_AMD64_GET_FSBASE:
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if (op == TARGET_FREEBSD_AMD64_GET_GSBASE) {
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idx = R_GS;
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} else {
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idx = R_FS;
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}
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val = env->segs[idx].base;
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if (put_user(val, parms, abi_ulong)) {
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return -TARGET_EFAULT;
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}
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break;
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/* XXX handle the others... */
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default:
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ret = -TARGET_EINVAL;
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break;
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}
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return ret;
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}
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static inline void do_freebsd_arch_print_sysarch(
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const struct syscallname *name, abi_long arg1, abi_long arg2,
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abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
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{
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gemu_log("%s(%d, " TARGET_ABI_FMT_lx ", " TARGET_ABI_FMT_lx ", "
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TARGET_ABI_FMT_lx ")", name->name, (int)arg1, arg2, arg3, arg4);
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}
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#endif /*! BSD_USER_ARCH_SYSARCH_H_ */
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