qemu-patch-raspberry4/linux-user/s390x/target_signal.h

#ifndef S390X_TARGET_SIGNAL_H
#define S390X_TARGET_SIGNAL_H

#include "cpu.h"

typedef struct target_sigaltstack {
    abi_ulong ss_sp;
    int 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        8192

static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state)
{
   return state->regs[15];
}

void setup_frame(int sig, struct target_sigaction *ka,
                 target_sigset_t *set, CPUS390XState *env);
void setup_rt_frame(int sig, struct target_sigaction *ka,
                    target_siginfo_t *info,
                    target_sigset_t *set, CPUS390XState *env);
#endif /* S390X_TARGET_SIGNAL_H */