// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import "unsafe"

type sigctxt struct {
	info *siginfo
	ctxt unsafe.Pointer
}

//go:nosplit
//go:nowritebarrierrec
func (c *sigctxt) regs() *mcontext { return &(*ucontext)(c.ctxt).uc_mcontext }

func (c *sigctxt) r0() uint64  { return c.regs().mc_gpregs.gp_x[0] }
func (c *sigctxt) r1() uint64  { return c.regs().mc_gpregs.gp_x[1] }
func (c *sigctxt) r2() uint64  { return c.regs().mc_gpregs.gp_x[2] }
func (c *sigctxt) r3() uint64  { return c.regs().mc_gpregs.gp_x[3] }
func (c *sigctxt) r4() uint64  { return c.regs().mc_gpregs.gp_x[4] }
func (c *sigctxt) r5() uint64  { return c.regs().mc_gpregs.gp_x[5] }
func (c *sigctxt) r6() uint64  { return c.regs().mc_gpregs.gp_x[6] }
func (c *sigctxt) r7() uint64  { return c.regs().mc_gpregs.gp_x[7] }
func (c *sigctxt) r8() uint64  { return c.regs().mc_gpregs.gp_x[8] }
func (c *sigctxt) r9() uint64  { return c.regs().mc_gpregs.gp_x[9] }
func (c *sigctxt) r10() uint64 { return c.regs().mc_gpregs.gp_x[10] }
func (c *sigctxt) r11() uint64 { return c.regs().mc_gpregs.gp_x[11] }
func (c *sigctxt) r12() uint64 { return c.regs().mc_gpregs.gp_x[12] }
func (c *sigctxt) r13() uint64 { return c.regs().mc_gpregs.gp_x[13] }
func (c *sigctxt) r14() uint64 { return c.regs().mc_gpregs.gp_x[14] }
func (c *sigctxt) r15() uint64 { return c.regs().mc_gpregs.gp_x[15] }
func (c *sigctxt) r16() uint64 { return c.regs().mc_gpregs.gp_x[16] }
func (c *sigctxt) r17() uint64 { return c.regs().mc_gpregs.gp_x[17] }
func (c *sigctxt) r18() uint64 { return c.regs().mc_gpregs.gp_x[18] }
func (c *sigctxt) r19() uint64 { return c.regs().mc_gpregs.gp_x[19] }
func (c *sigctxt) r20() uint64 { return c.regs().mc_gpregs.gp_x[20] }
func (c *sigctxt) r21() uint64 { return c.regs().mc_gpregs.gp_x[21] }
func (c *sigctxt) r22() uint64 { return c.regs().mc_gpregs.gp_x[22] }
func (c *sigctxt) r23() uint64 { return c.regs().mc_gpregs.gp_x[23] }
func (c *sigctxt) r24() uint64 { return c.regs().mc_gpregs.gp_x[24] }
func (c *sigctxt) r25() uint64 { return c.regs().mc_gpregs.gp_x[25] }
func (c *sigctxt) r26() uint64 { return c.regs().mc_gpregs.gp_x[26] }
func (c *sigctxt) r27() uint64 { return c.regs().mc_gpregs.gp_x[27] }
func (c *sigctxt) r28() uint64 { return c.regs().mc_gpregs.gp_x[28] }
func (c *sigctxt) r29() uint64 { return c.regs().mc_gpregs.gp_x[29] }
func (c *sigctxt) lr() uint64  { return c.regs().mc_gpregs.gp_lr }
func (c *sigctxt) sp() uint64  { return c.regs().mc_gpregs.gp_sp }

//go:nosplit
//go:nowritebarrierrec
func (c *sigctxt) pc() uint64 { return c.regs().mc_gpregs.gp_elr }

func (c *sigctxt) fault() uintptr { return uintptr(c.info.si_addr) }

func (c *sigctxt) sigcode() uint64 { return uint64(c.info.si_code) }
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) set_sigaddr(x uint64) { c.info.si_addr = x }