#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    2048#define TARGET_SIGSTKSZ       8192static inline abi_ulong get_sp_from_cpustate(CPUSH4State *state){    return state->gregs[15];}#endif /* TARGET_SIGNAL_H */