use PT_FIRSTMACH;

pub type c_long = i64;
pub type c_ulong = u64;
pub type c_char = i8;
pub type c___greg_t = u64;
pub type __cpu_simple_lock_nv_t = ::c_uchar;

s! {
    pub struct mcontext_t {
        pub __gregs: [c___greg_t; 26],
        pub _mc_tlsbase: c___greg_t,
        pub __fpregs: [[::c_char;32]; 16],
    }

    pub struct ucontext_t {
        pub uc_flags: ::c_uint,
        pub uc_link: *mut ::ucontext_t,
        pub uc_sigmask: ::sigset_t,
        pub uc_stack: ::stack_t,
        pub uc_mcontext: ::mcontext_t,
    }
}

// should be pub(crate), but that requires Rust 1.18.0
cfg_if! {
    if #[cfg(libc_const_size_of)] {
        #[doc(hidden)]
        pub const _ALIGNBYTES: usize = ::mem::size_of::<::c_long>() - 1;
    } else {
        #[doc(hidden)]
        pub const _ALIGNBYTES: usize = 8 - 1;
    }
}

pub const PT_STEP: ::c_int = PT_FIRSTMACH + 0;
pub const PT_GETREGS: ::c_int = PT_FIRSTMACH + 1;
pub const PT_SETREGS: ::c_int = PT_FIRSTMACH + 2;
pub const PT_GETFPREGS: ::c_int = PT_FIRSTMACH + 3;
pub const PT_SETFPREGS: ::c_int = PT_FIRSTMACH + 4;

pub const _REG_RDI: ::c_int = 0;
pub const _REG_RSI: ::c_int = 1;
pub const _REG_RDX: ::c_int = 2;
pub const _REG_RCX: ::c_int = 3;
pub const _REG_R8: ::c_int = 4;
pub const _REG_R9: ::c_int = 5;
pub const _REG_R10: ::c_int = 6;
pub const _REG_R11: ::c_int = 7;
pub const _REG_R12: ::c_int = 8;
pub const _REG_R13: ::c_int = 9;
pub const _REG_R14: ::c_int = 10;
pub const _REG_R15: ::c_int = 11;
pub const _REG_RBP: ::c_int = 12;
pub const _REG_RBX: ::c_int = 13;
pub const _REG_RAX: ::c_int = 14;
pub const _REG_GS: ::c_int = 15;
pub const _REG_FS: ::c_int = 16;
pub const _REG_ES: ::c_int = 17;
pub const _REG_DS: ::c_int = 18;
pub const _REG_TRAPNO: ::c_int = 19;
pub const _REG_ERR: ::c_int = 20;
pub const _REG_RIP: ::c_int = 21;
pub const _REG_CS: ::c_int = 22;
pub const _REG_RFLAGS: ::c_int = 23;
pub const _REG_RSP: ::c_int = 24;
pub const _REG_SS: ::c_int = 25;