sa_flags    uint32
	sa_restorer uintptr
	sa_mask     uint64
}

type siginfoFields struct {
	si_signo int32
	si_errno int32
	si_code  int32
	// below here is a union; si_addr is the only field we use
	si_addr uint32
}

type siginfo struct {
	siginfoFields

	// Pad struct to the max size in the kernel.
	_ [_si_max_size - unsafe.Sizeof(siginfoFields{})]byte
}

type stackt struct {

	litAddrOrName string
	addr          *IPAddr
	err           error
}

var resolveIPAddrTests = []resolveIPAddrTest{
	{"ip", "127.0.0.1", &IPAddr{IP: IPv4(127, 0, 0, 1)}, nil},
	{"ip4", "127.0.0.1", &IPAddr{IP: IPv4(127, 0, 0, 1)}, nil},
	{"ip4:icmp", "127.0.0.1", &IPAddr{IP: IPv4(127, 0, 0, 1)}, nil},

	{"ip", "::1", &IPAddr{IP: ParseIP("::1")}, nil},
	{"ip6", "::1", &IPAddr{IP: ParseIP("::1")}, nil},

Go runtime functions require the "linux" name of fields (ss_sp, si_addr, etc)
However, AIX structures don't provide such names and must be modified.

TODO(aix): create a script to automatise defs_aix creation.

Modifications made:
 - sigset replaced by a [4]uint64 array
 - add sigset_all variable
 - siginfo.si_addr uintptr instead of *byte
 - add (*timeval) set_usec
 - stackt.ss_sp uintptr instead of *byte

	sa_flags    uint64
	sa_restorer uintptr
	sa_mask     uint64
}

type siginfoFields struct {
	si_signo int32
	si_errno int32
	si_code  int32
	// below here is a union; si_addr is the only field we use
	si_addr uint64
}

type siginfo struct {
	siginfoFields

	// Pad struct to the max size in the kernel.
	_ [_si_max_size - unsafe.Sizeof(siginfoFields{})]byte
}

	buf := bytes.NewBuffer(syms)

	for {
		symAddr, name, err := nextSymbol(buf)
		if err == io.EOF {
			// Done. If there was an unfinished group, append it.
			if len(names) != 0 {
				if match := matchSymbol(names, start, symAddr-1, r, address); match != nil {
					symbols = append(symbols, &plugin.Sym{Name: match, File: file, Start: start, End: symAddr - 1})
				}
			}

			// And return the symbols.

	sa_restorer uintptr
}

type siginfoFields struct {
	si_signo int32
	si_code  int32
	si_errno int32
	__pad0   [1]int32
	// below here is a union; si_addr is the only field we use
	si_addr uint64
}

type siginfo struct {
	siginfoFields

	// Pad struct to the max size in the kernel.
	_ [_si_max_size - unsafe.Sizeof(siginfoFields{})]byte
}

	sa_restorer uintptr
}

type siginfoFields struct {
	si_signo int32
	si_code  int32
	si_errno int32
	// below here is a union; si_addr is the only field we use
	si_addr uint32
}

type siginfo struct {
	siginfoFields

	// Pad struct to the max size in the kernel.
	_ [_si_max_size - unsafe.Sizeof(siginfoFields{})]byte
}

	sa_flags    uint64
	sa_restorer uintptr
	sa_mask     uint64
}

type siginfoFields struct {
	si_signo int32
	si_errno int32
	si_code  int32
	// below here is a union; si_addr is the only field we use
	si_addr uint64
}

type siginfo struct {
	siginfoFields

	// Pad struct to the max size in the kernel.
	_ [_si_max_size - unsafe.Sizeof(siginfoFields{})]byte
}

// BUG(mikio): On Windows, the File method of IPConn is not
// implemented.

// IPAddr represents the address of an IP end point.
type IPAddr struct {
	IP   IP
	Zone string // IPv6 scoped addressing zone
}

// Network returns the address's network name, "ip".
func (a *IPAddr) Network() string { return "ip" }

func (a *IPAddr) String() string {
	if a == nil {
		return "<nil>"
	}
	ip := ipEmptyString(a.IP)

}

func setupTestData() {
	resolveIPAddrTests = append(resolveIPAddrTests,
		[]resolveIPAddrTest{ // ERROR "\[\]resolveIPAddrTest{...} does not escape"
			{"ip",
				"localhost",
				&IPAddr{IP: IPv4(127, 0, 0, 1)}, // ERROR "&IPAddr{...} escapes to heap"
				nil},
			{"ip4",
				"localhost",
				&IPAddr{IP: IPv4(127, 0, 0, 1)}, // ERROR "&IPAddr{...} escapes to heap"
				nil},