/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
 * Copyright (C) 2012 ARM Ltd.
 * Copyright (C) 2017 SiFive, Inc.
 *
 * This file was copied from arch/arm64/include/uapi/asm/ucontext.h
 */
#ifndef _UAPI_ASM_RISCV_UCONTEXT_H
#define _UAPI_ASM_RISCV_UCONTEXT_H

#include <linux/types.h>

struct ucontext {
    unsigned long      uc_flags;
    struct ucontext     *uc_link;
    stack_t          uc_stack;
    sigset_t      uc_sigmask;
    /*
     * There's some padding here to allow sigset_t to be expanded in the
     * future.  Though this is unlikely, other architectures put uc_sigmask
     * at the end of this structure and explicitly state it can be
     * expanded, so we didn't want to box ourselves in here.
     */
    __u8          __unused[1024 / 8 - sizeof(sigset_t)];
    /*
     * We can't put uc_sigmask at the end of this structure because we need
     * to be able to expand sigcontext in the future.  For example, the
     * vector ISA extension will almost certainly add ISA state.  We want
     * to ensure all user-visible ISA state can be saved and restored via a
     * ucontext, so we're putting this at the end in order to allow for
     * infinite extensibility.  Since we know this will be extended and we
     * assume sigset_t won't be extended an extreme amount, we're
     * prioritizing this.
     */
    struct sigcontext uc_mcontext;
};

#endif /* _UAPI_ASM_RISCV_UCONTEXT_H */