func (c *sigctxt) gs() uint64      { return uint64(c.regs().gregs[_REG_GS]) }
func (c *sigctxt) sigcode() uint64 { return uint64(c.info.si_code) }
func (c *sigctxt) sigaddr() uint64 { return *(*uint64)(unsafe.Pointer(&c.info.__data[0])) }

func (c *sigctxt) set_rip(x uint64)     { c.regs().gregs[_REG_RIP] = int64(x) }
func (c *sigctxt) set_rsp(x uint64)     { c.regs().gregs[_REG_RSP] = int64(x) }

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, \
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, \
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, \
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, \

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, \
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, \
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, \
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, \

func (c *sigctxt) fs() uint64      { return c.regs().__gregs[_REG_FS] }
func (c *sigctxt) gs() uint64      { return c.regs().__gregs[_REG_GS] }
func (c *sigctxt) sigcode() uint64 { return uint64(c.info._code) }
func (c *sigctxt) sigaddr() uint64 {
	return *(*uint64)(unsafe.Pointer(&c.info._reason[0]))
}

func (c *sigctxt) set_rip(x uint64)     { c.regs().__gregs[_REG_RIP] = x }
func (c *sigctxt) set_rsp(x uint64)     { c.regs().__gregs[_REG_RSP] = x }

func (c *sigctxt) trap() uint32    { return 0 }
func (c *sigctxt) error() uint32   { return 0 }
func (c *sigctxt) oldmask() uint32 { return 0 }

func (c *sigctxt) sigcode() uint32 { return uint32(c.info._code) }
func (c *sigctxt) sigaddr() uint32 { return uint32(c.info._reason) }

func (c *sigctxt) set_pc(x uint32)  { c.regs().__gregs[_REG_R15] = x }
func (c *sigctxt) set_sp(x uint32)  { c.regs().__gregs[_REG_R13] = x }

	p_align  uint32 /* Segment alignment */
}

type elfShdr struct {
	sh_name      uint32 /* Section name (string tbl index) */
	sh_type      uint32 /* Section type */
	sh_flags     uint32 /* Section flags */
	sh_addr      uint32 /* Section virtual addr at execution */
	sh_offset    uint32 /* Section file offset */
	sh_size      uint32 /* Section size in bytes */
	sh_link      uint32 /* Link to another section */

		poll.CloseFunc(s)
		return nil, err
	}
	laddr := fd.addrFunc()(lsa)
	raddr := fd.addrFunc()(rsa)
	fd.net = laddr.Network()
	if err := fd.init(); err != nil {
		fd.Close()
		return nil, err
	}
	fd.setAddr(laddr, raddr)
	return fd, nil
}

func fileConn(f *os.File) (Conn, error) {
	fd, err := newFileFD(f)
	if err != nil {
		return nil, err
	}
	switch fd.laddr.(type) {
	case *TCPAddr:

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, \
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, \
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, \
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, \

	SYS_MSGRCV         = 227 // { int sys_msgrcv(int msqid, void *msgp, size_t msgsz, \
	SYS_SHMAT          = 228 // { void *sys_shmat(int shmid, const void *shmaddr, \
	SYS_SHMDT          = 230 // { int sys_shmdt(const void *shmaddr); }
	SYS_MINHERIT       = 250 // { int sys_minherit(void *addr, size_t len, \
	SYS_POLL           = 252 // { int sys_poll(struct pollfd *fds, \

	ss_size   uintptr
	ss_flags  int32
	pad_cgo_0 [4]byte
}

type siginfo struct {
	si_signo  int32
	si_errno  int32
	si_code   int32
	si_pid    int32
	si_uid    uint32
	si_status int32
	si_addr   uint64
	si_value  [8]byte
	si_band   int64
	__spare__ [7]int32
	pad_cgo_0 [4]byte
}

type mcontext struct {
	mc_onstack  uint64
	mc_rdi      uint64
	mc_rsi      uint64
	mc_rdx      uint64