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

#ifndef MIPS_TARGET_SIGNAL_H
#define MIPS_TARGET_SIGNAL_H

#include "cpu.h"

/* this struct defines a stack used during syscall handling */

typedef struct target_sigaltstack {
	abi_long ss_sp;
	abi_ulong ss_size;
	abi_long ss_flags;
} 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(CPUMIPSState *state)
{
    return state->active_tc.gpr[29];
}

# if defined(TARGET_ABI_MIPSO32)
/* compare linux/arch/mips/kernel/signal.c:setup_frame() */
void setup_frame(int sig, struct target_sigaction * ka,
                 target_sigset_t *set, CPUMIPSState *regs);
#endif
void setup_rt_frame(int sig, struct target_sigaction *ka,
                    target_siginfo_t *info,
                    target_sigset_t *set, CPUMIPSState *env);
#endif /* MIPS_TARGET_SIGNAL_H */