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2667e71c3d
Add x86-64 implementation of cpu_set_tls() (like the kernel, we just have to call do_arch_prctl() to set FS); this allows us to enable NPTL. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/*
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* i386 specific CPU ABI and functions for linux-user
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TARGET_CPU_H
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#define TARGET_CPU_H
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static inline void cpu_clone_regs(CPUX86State *env, target_ulong newsp)
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{
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if (newsp) {
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env->regs[R_ESP] = newsp;
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}
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env->regs[R_EAX] = 0;
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}
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#if defined(TARGET_ABI32)
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abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr);
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static inline void cpu_set_tls(CPUX86State *env, target_ulong newtls)
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{
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do_set_thread_area(env, newtls);
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cpu_x86_load_seg(env, R_GS, env->segs[R_GS].selector);
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}
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#else
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abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr);
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static inline void cpu_set_tls(CPUX86State *env, target_ulong newtls)
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{
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do_arch_prctl(env, TARGET_ARCH_SET_FS, newtls);
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}
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#endif /* defined(TARGET_ABI32) */
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#endif /* !defined(TARGET_CPU_H) */
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