root/include/uapi/linux/signalfd.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 *  include/linux/signalfd.h
 *
 *  Copyright (C) 2007  Davide Libenzi <davidel@xmailserver.org>
 *
 */

#ifndef _UAPI_LINUX_SIGNALFD_H
#define _UAPI_LINUX_SIGNALFD_H

#include <linux/types.h>
/* For O_CLOEXEC and O_NONBLOCK */
#include <linux/fcntl.h>

/* Flags for signalfd4.  */
#define SFD_CLOEXEC O_CLOEXEC
#define SFD_NONBLOCK O_NONBLOCK

struct signalfd_siginfo {
        __u32 ssi_signo;
        __s32 ssi_errno;
        __s32 ssi_code;
        __u32 ssi_pid;
        __u32 ssi_uid;
        __s32 ssi_fd;
        __u32 ssi_tid;
        __u32 ssi_band;
        __u32 ssi_overrun;
        __u32 ssi_trapno;
        __s32 ssi_status;
        __s32 ssi_int;
        __u64 ssi_ptr;
        __u64 ssi_utime;
        __u64 ssi_stime;
        __u64 ssi_addr;
        __u16 ssi_addr_lsb;
        __u16 __pad2;
        __s32 ssi_syscall;
        __u64 ssi_call_addr;
        __u32 ssi_arch;

        /*
         * Pad strcture to 128 bytes. Remember to update the
         * pad size when you add new members. We use a fixed
         * size structure to avoid compatibility problems with
         * future versions, and we leave extra space for additional
         * members. We use fixed size members because this strcture
         * comes out of a read(2) and we really don't want to have
         * a compat on read(2).
         */
        __u8 __pad[28];
};



#endif /* _UAPI_LINUX_SIGNALFD_H */