// anyway.
	sp := c.sp() - 4
	c.set_sp(sp)
	*(*uint32)(unsafe.Pointer(uintptr(sp))) = c.lr()

	pc := gp.sigpc

	if shouldPushSigpanic(gp, pc, uintptr(c.lr())) {
		// Make it look the like faulting PC called sigpanic.
		c.set_lr(uint32(pc))
	}

	// In case we are panicking from external C code
	c.set_r10(uint32(uintptr(unsafe.Pointer(gp))))

	// anyway.
	sp := c.sp() - goarch.PtrSize
	c.set_sp(sp)
	*(*uint64)(unsafe.Pointer(uintptr(sp))) = c.link()

	pc := gp.sigpc

	if shouldPushSigpanic(gp, pc, uintptr(c.link())) {
		// Make it look the like faulting PC called sigpanic.
		c.set_link(uint64(pc))
	}

	// In case we are panicking from external C code
	c.set_r22(uint64(uintptr(unsafe.Pointer(gp))))

	sc_rbp      uint64
	sc_rbx      uint64
	sc_rax      uint64
	sc_gs       uint64
	sc_fs       uint64
	sc_es       uint64
	sc_ds       uint64
	sc_trapno   uint64
	sc_err      uint64
	sc_rip      uint64
	sc_cs       uint64
	sc_rflags   uint64
	sc_rsp      uint64
	sc_ss       uint64
	sc_fpstate  unsafe.Pointer
	__sc_unused int32
	sc_mask     int32
}

type siginfo struct {

func (c *sigctxt) sigaddr() uint64 { return c.info.si_addr }

func (c *sigctxt) set_pc(x uint64)  { c.regs().pc = x }
func (c *sigctxt) set_sp(x uint64)  { c.regs().sp = x }
func (c *sigctxt) set_lr(x uint64)  { c.regs().regs[30] = x }
func (c *sigctxt) set_r28(x uint64) { c.regs().regs[28] = x }

func (c *sigctxt) set_sigaddr(x uint64) {
	*(*uintptr)(add(unsafe.Pointer(c.info), 2*goarch.PtrSize)) = uintptr(x)

	// anyway.
	sp := c.sp() - sys.MinFrameSize
	c.set_sp(sp)
	*(*uint32)(unsafe.Pointer(uintptr(sp))) = c.link()

	pc := gp.sigpc

	if shouldPushSigpanic(gp, pc, uintptr(c.link())) {
		// Make it look the like faulting PC called sigpanic.
		c.set_link(uint32(pc))
	}

	// In case we are panicking from external C code
	c.set_r30(uint32(uintptr(unsafe.Pointer(gp))))

func (c *sigctxt) sigaddr() uint64 { return uint64(c.info._reason) }

func (c *sigctxt) set_pc(x uint64)  { c.regs().__gregs[_REG_ELR] = x }
func (c *sigctxt) set_sp(x uint64)  { c.regs().__gregs[_REG_X31] = x }
func (c *sigctxt) set_lr(x uint64)  { c.regs().__gregs[_REG_X30] = x }
func (c *sigctxt) set_r28(x uint64) { c.regs().__gregs[_REG_X28] = x }

func (c *sigctxt) set_sigcode(x uint64) { c.info._code = int32(x) }
func (c *sigctxt) set_sigaddr(x uint64) {

func (c *sigctxt) sigaddr() uint64 { return c.info.si_addr }

func (c *sigctxt) set_pc(x uint64)  { c.regs().mc_gpregs.gp_elr = x }
func (c *sigctxt) set_sp(x uint64)  { c.regs().mc_gpregs.gp_sp = x }
func (c *sigctxt) set_lr(x uint64)  { c.regs().mc_gpregs.gp_lr = x }
func (c *sigctxt) set_r28(x uint64) { c.regs().mc_gpregs.gp_x[28] = x }

func (c *sigctxt) set_sigcode(x uint64) { c.info.si_code = int32(x) }

func (c *sigctxt) pc() uint64 { return uint64(c.regs().sc_elr) }

func (c *sigctxt) set_pc(x uint64)  { c.regs().sc_elr = uintptr(x) }
func (c *sigctxt) set_sp(x uint64)  { c.regs().sc_sp = uintptr(x) }
func (c *sigctxt) set_lr(x uint64)  { c.regs().sc_lr = uintptr(x) }
func (c *sigctxt) set_r28(x uint64) { c.regs().sc_x[28] = uintptr(x) }

func (c *sigctxt) set_sigcode(x uint64) { c.info.si_code = int32(x) }
func (c *sigctxt) set_sigaddr(x uint64) {

func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
func (c *sigctxt) sigaddr() uint32 { return c.info.si_addr }

func (c *sigctxt) set_r30(x uint32)  { c.regs().sc_regs[30] = uint64(x) }
func (c *sigctxt) set_pc(x uint32)   { c.regs().sc_pc = uint64(x) }
func (c *sigctxt) set_sp(x uint32)   { c.regs().sc_regs[29] = uint64(x) }
func (c *sigctxt) set_link(x uint32) { c.regs().sc_regs[31] = uint64(x) }

func (c *sigctxt) sigaddr() uint64 { return uint64(uintptr(unsafe.Pointer(c.info.si_addr))) }

func (c *sigctxt) set_pc(x uint64)  { c.regs().pc = x }
func (c *sigctxt) set_sp(x uint64)  { c.regs().sp = x }
func (c *sigctxt) set_lr(x uint64)  { c.regs().lr = x }
func (c *sigctxt) set_r28(x uint64) { c.regs().x[28] = x }

func (c *sigctxt) set_sigcode(x uint64) { c.info.si_code = int32(x) }
func (c *sigctxt) set_sigaddr(x uint64) {