qemu/linux-user/xtensa/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

33 lines
757 B
C

/*
* Xtensa-specific CPU ABI and functions for linux-user
*/
#ifndef XTENSA_TARGET_CPU_H
#define XTENSA_TARGET_CPU_H
static inline void cpu_clone_regs_child(CPUXtensaState *env,
target_ulong newsp,
unsigned flags)
{
if (newsp) {
env->regs[1] = newsp;
env->sregs[WINDOW_BASE] = 0;
env->sregs[WINDOW_START] = 0x1;
}
env->regs[2] = 0;
}
static inline void cpu_clone_regs_parent(CPUXtensaState *env, unsigned flags)
{
}
static inline void cpu_set_tls(CPUXtensaState *env, target_ulong newtls)
{
env->uregs[THREADPTR] = newtls;
}
static inline abi_ulong get_sp_from_cpustate(CPUXtensaState *state)
{
return state->regs[1];
}
#endif