qemu/linux-user/s390x/target_cpu.h
Richard Henderson 07a6ecf48f linux-user: Introduce cpu_clone_regs_parent
We will need a target-specific hook for adjusting registers
in the parent during clone.  Add an empty inline function for
each target, and invoke it from the proper places.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191106113318.10226-11-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-11-06 13:43:25 +01:00

46 lines
1.3 KiB
C

/*
* S/390 specific CPU ABI and functions for linux-user
*
* Copyright (c) 2009 Ulrich Hecht
*
* 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 S390X_TARGET_CPU_H
#define S390X_TARGET_CPU_H
static inline void cpu_clone_regs_child(CPUS390XState *env, target_ulong newsp,
unsigned flags)
{
if (newsp) {
env->regs[15] = newsp;
}
env->regs[2] = 0;
}
static inline void cpu_clone_regs_parent(CPUS390XState *env, unsigned flags)
{
}
static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
{
env->aregs[0] = newtls >> 32;
env->aregs[1] = newtls & 0xffffffffULL;
}
static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state)
{
return state->regs[15];
}
#endif