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      1 // Copyright 2013 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() *sigcontext { return &(*ucontext)(c.ctxt).uc_mcontext }
     15 func (c *sigctxt) r0() uint32        { return c.regs().r0 }
     16 func (c *sigctxt) r1() uint32        { return c.regs().r1 }
     17 func (c *sigctxt) r2() uint32        { return c.regs().r2 }
     18 func (c *sigctxt) r3() uint32        { return c.regs().r3 }
     19 func (c *sigctxt) r4() uint32        { return c.regs().r4 }
     20 func (c *sigctxt) r5() uint32        { return c.regs().r5 }
     21 func (c *sigctxt) r6() uint32        { return c.regs().r6 }
     22 func (c *sigctxt) r7() uint32        { return c.regs().r7 }
     23 func (c *sigctxt) r8() uint32        { return c.regs().r8 }
     24 func (c *sigctxt) r9() uint32        { return c.regs().r9 }
     25 func (c *sigctxt) r10() uint32       { return c.regs().r10 }
     26 func (c *sigctxt) fp() uint32        { return c.regs().fp }
     27 func (c *sigctxt) ip() uint32        { return c.regs().ip }
     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.regs().fault_address }
     33 func (c *sigctxt) trap() uint32      { return c.regs().trap_no }
     34 func (c *sigctxt) error() uint32     { return c.regs().error_code }
     35 func (c *sigctxt) oldmask() uint32   { return c.regs().oldmask }
     36 
     37 func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
     38 func (c *sigctxt) sigaddr() uint32 { return c.info.si_addr }
     39 
     40 func (c *sigctxt) set_pc(x uint32)  { c.regs().pc = x }
     41 func (c *sigctxt) set_sp(x uint32)  { c.regs().sp = x }
     42 func (c *sigctxt) set_lr(x uint32)  { c.regs().lr = x }
     43 func (c *sigctxt) set_r10(x uint32) { c.regs().r10 = x }
     44 
     45 func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
     46 func (c *sigctxt) set_sigaddr(x uint32) {
     47 	*(*uintptr)(add(unsafe.Pointer(c.info), 2*ptrSize)) = uintptr(x)
     48 }
     49