#ifndef TARGET_SIGNAL_H#define TARGET_SIGNAL_H#include "cpu.h"/* this struct defines a stack used during syscall handling */typedef struct target_sigaltstack {	abi_ulong ss_sp;	abi_long ss_flags;	abi_ulong ss_size;} target_stack_t;/* * sigaltstack controls */#define TARGET_SS_ONSTACK	1#define TARGET_SS_DISABLE	2#define TARGET_MINSIGSTKSZ	4096#define TARGET_SIGSTKSZ		16384#ifndef UREG_I6#define UREG_I6        6#endif#ifndef UREG_FP#define UREG_FP        UREG_I6#endifstatic inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state){    return state->regwptr[UREG_FP];}#endif /* TARGET_SIGNAL_H */