/* 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 */