qemu/linux-user/sparc/target_cpu.h
Peter Maydell f5147c93d0 linux-user: Enable NPTL for SPARC targets
Provide the missing cpu_set_tls(), and resolve the FIXME in
cpu_clone_regs() by clearing the carry flag for the child.
This allows us to turn on building with NPTL for SPARC.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-22 21:54:15 +03:00

45 lines
1.4 KiB
C

/*
* SPARC specific CPU ABI and functions for linux-user
*
* Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at>
* Copyright (C) 2003-2005 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(CPUSPARCState *env, target_ulong newsp)
{
if (newsp) {
env->regwptr[22] = newsp;
}
/* syscall return for clone child: 0, and clear CF since
* this counts as a success return value.
*/
env->regwptr[0] = 0;
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
env->xcc &= ~PSR_CARRY;
#else
env->psr &= ~PSR_CARRY;
#endif
}
static inline void cpu_set_tls(CPUSPARCState *env, target_ulong newtls)
{
env->gregs[7] = newtls;
}
#endif