}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = x
}

type itimerval struct {
	it_interval timeval
	it_value    timeval
}

type stackt struct {
	ss_sp     uintptr
	ss_size   uintptr
	ss_flags  int32
	__pad     [4]int32
	pas_cgo_0 [4]byte
}

type sigcontext struct {
	sc_onstack int32
	pad_cgo_0  [4]byte
	sc_mask    sigset
	sc_uerror  int32
	sc_jmpbuf  context64

	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int32
	parent_tid *int32
	flags      int32
	rtp        *rtprio
	spare      [3]uintptr
}

type thread int32 // long

type sigset struct {
	__bits [4]uint32
}

type stackt struct {
	ss_sp    uintptr
	ss_size  uintptr
	ss_flags int32
}

type siginfo struct {

	dar       uint64
	dsisr     uint64
	result    uint64
}

type vreg struct {
	u [4]uint32
}

type stackt struct {
	ss_sp     *byte
	ss_flags  int32
	pad_cgo_0 [4]byte
	ss_size   uintptr
}

type sigcontext struct {
	_unused     [4]uint64
	signal      int32
	_pad0       int32
	handler     uint64
	oldmask     uint64
	regs        *ptregs
	gp_regs     [48]uint64

	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int64
	parent_tid *int64
	flags      int32
	pad_cgo_0  [4]byte
	rtp        *rtprio
	spare      [3]uintptr
}

type thread int64 // long

type sigset struct {
	__bits [4]uint32
}

type stackt struct {
	ss_sp     uintptr
	ss_size   uintptr
	ss_flags  int32
	pad_cgo_0 [4]byte
}

	_O_NONBLOCK = 0x4
	_O_CREAT    = 0x200
	_O_TRUNC    = 0x400

	_VM_REGION_BASIC_INFO_COUNT_64 = 0x9
	_VM_REGION_BASIC_INFO_64       = 0x9
)

type stackt struct {
	ss_sp     *byte
	ss_size   uintptr
	ss_flags  int32
	pad_cgo_0 [4]byte
}

type sigactiont struct {
	__sigaction_u [8]byte
	sa_tramp      unsafe.Pointer
	sa_mask       uint32
	sa_flags      int32
}

	_O_NONBLOCK = 0x4
	_O_CREAT    = 0x200
	_O_TRUNC    = 0x400

	_VM_REGION_BASIC_INFO_COUNT_64 = 0x9
	_VM_REGION_BASIC_INFO_64       = 0x9
)

type stackt struct {
	ss_sp     *byte
	ss_size   uintptr
	ss_flags  int32
	pad_cgo_0 [4]byte
}

type sigactiont struct {
	__sigaction_u [8]byte
	sa_tramp      unsafe.Pointer
	sa_mask       uint32
	sa_flags      int32
}

	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int64
	parent_tid *int64
	flags      int32
	pad_cgo_0  [4]byte
	rtp        *rtprio
	spare      [3]uintptr
}

type thread int64 // long

type sigset struct {
	__bits [4]uint32
}

type stackt struct {
	ss_sp     uintptr
	ss_size   uintptr
	ss_flags  int32
	pad_cgo_0 [4]byte
}

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
 - stackt.ss_size uintptr instead of uint64
 - sigcontext.sc_jmpbuf context64 instead of jumbuf
 - ucontext.__extctx is a uintptr because we don't need extctx struct
 - ucontext.uc_mcontext: replace jumbuf structure by context64 structure

	padding   [24]uint32
}

type fpreg1 struct {
	significand [4]uint16
	exponent    uint16
}

type stackt struct {
	ss_sp     *byte
	ss_flags  int32
	pad_cgo_0 [4]byte
	ss_size   uintptr
}

type mcontext struct {
	gregs       [23]uint64
	fpregs      *fpstate
	__reserved1 [8]uint64
}

type ucontext struct {
	uc_flags     uint64
	uc_link      *ucontext

	if new != nil && new.ss_flags&_SS_DISABLE != 0 && new.ss_size == 0 {
		// Despite the fact that Darwin's sigaltstack man page says it ignores the size
		// when SS_DISABLE is set, it doesn't. sigaltstack returns ENOMEM
		// if we don't give it a reasonable size.
		// ref: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20140421/214296.html
		new.ss_size = 32768
	}