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      1 // Copyright 2014 The Go Authors.  All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 package runtime
      6 
      7 import "unsafe"
      8 
      9 type sigctxt struct {
     10 	info *siginfo
     11 	ctxt unsafe.Pointer
     12 }
     13 
     14 func (c *sigctxt) regs() *regs32   { return &(*ucontext)(c.ctxt).uc_mcontext.ss }
     15 func (c *sigctxt) r0() uint32      { return c.regs().r[0] }
     16 func (c *sigctxt) r1() uint32      { return c.regs().r[1] }
     17 func (c *sigctxt) r2() uint32      { return c.regs().r[2] }
     18 func (c *sigctxt) r3() uint32      { return c.regs().r[3] }
     19 func (c *sigctxt) r4() uint32      { return c.regs().r[4] }
     20 func (c *sigctxt) r5() uint32      { return c.regs().r[5] }
     21 func (c *sigctxt) r6() uint32      { return c.regs().r[6] }
     22 func (c *sigctxt) r7() uint32      { return c.regs().r[7] }
     23 func (c *sigctxt) r8() uint32      { return c.regs().r[8] }
     24 func (c *sigctxt) r9() uint32      { return c.regs().r[9] }
     25 func (c *sigctxt) r10() uint32     { return c.regs().r[10] }
     26 func (c *sigctxt) fp() uint32      { return c.regs().r[11] }
     27 func (c *sigctxt) ip() uint32      { return c.regs().r[12] }
     28 func (c *sigctxt) sp() uint32      { return c.regs().sp }
     29 func (c *sigctxt) lr() uint32      { return c.regs().lr }
     30 func (c *sigctxt) pc() uint32      { return c.regs().pc }
     31 func (c *sigctxt) cpsr() uint32    { return c.regs().cpsr }
     32 func (c *sigctxt) fault() uint32   { return c.info.si_addr }
     33 func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
     34 func (c *sigctxt) trap() uint32    { return 0 }
     35 func (c *sigctxt) error() uint32   { return 0 }
     36 func (c *sigctxt) oldmask() uint32 { return 0 }
     37 
     38 func (c *sigctxt) set_pc(x uint32)  { c.regs().pc = x }
     39 func (c *sigctxt) set_sp(x uint32)  { c.regs().sp = x }
     40 func (c *sigctxt) set_lr(x uint32)  { c.regs().lr = x }
     41 func (c *sigctxt) set_r10(x uint32) { c.regs().r[10] = x }
     42 
     43 func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
     44 func (c *sigctxt) set_sigaddr(x uint32) { c.info.si_addr = x }
     45