diff options
Diffstat (limited to 'qemu/linux-user/i386/target_cpu.h')
-rw-r--r-- | qemu/linux-user/i386/target_cpu.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/qemu/linux-user/i386/target_cpu.h b/qemu/linux-user/i386/target_cpu.h new file mode 100644 index 000000000..58f86454d --- /dev/null +++ b/qemu/linux-user/i386/target_cpu.h @@ -0,0 +1,48 @@ +/* + * i386 specific CPU ABI and functions for linux-user + * + * Copyright (c) 2003 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef TARGET_CPU_H +#define TARGET_CPU_H + +static inline void cpu_clone_regs(CPUX86State *env, target_ulong newsp) +{ + if (newsp) { + env->regs[R_ESP] = newsp; + } + env->regs[R_EAX] = 0; +} + +#if defined(TARGET_ABI32) +abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr); + +static inline void cpu_set_tls(CPUX86State *env, target_ulong newtls) +{ + do_set_thread_area(env, newtls); + cpu_x86_load_seg(env, R_GS, env->segs[R_GS].selector); +} +#else +abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr); + +static inline void cpu_set_tls(CPUX86State *env, target_ulong newtls) +{ + do_arch_prctl(env, TARGET_ARCH_SET_FS, newtls); +} +#endif /* defined(TARGET_ABI32) */ + +#endif /* !defined(TARGET_CPU_H) */ |