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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 {
     15 	return (*sigcontext)(c.ctxt)
     16 }
     17 
     18 func (c *sigctxt) eax() uint32     { return c.regs().sc_eax }
     19 func (c *sigctxt) ebx() uint32     { return c.regs().sc_ebx }
     20 func (c *sigctxt) ecx() uint32     { return c.regs().sc_ecx }
     21 func (c *sigctxt) edx() uint32     { return c.regs().sc_edx }
     22 func (c *sigctxt) edi() uint32     { return c.regs().sc_edi }
     23 func (c *sigctxt) esi() uint32     { return c.regs().sc_esi }
     24 func (c *sigctxt) ebp() uint32     { return c.regs().sc_ebp }
     25 func (c *sigctxt) esp() uint32     { return c.regs().sc_esp }
     26 func (c *sigctxt) eip() uint32     { return c.regs().sc_eip }
     27 func (c *sigctxt) eflags() uint32  { return c.regs().sc_eflags }
     28 func (c *sigctxt) cs() uint32      { return c.regs().sc_cs }
     29 func (c *sigctxt) fs() uint32      { return c.regs().sc_fs }
     30 func (c *sigctxt) gs() uint32      { return c.regs().sc_gs }
     31 func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
     32 func (c *sigctxt) sigaddr() uint32 {
     33 	return *(*uint32)(add(unsafe.Pointer(c.info), 12))
     34 }
     35 
     36 func (c *sigctxt) set_eip(x uint32)     { c.regs().sc_eip = x }
     37 func (c *sigctxt) set_esp(x uint32)     { c.regs().sc_esp = x }
     38 func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
     39 func (c *sigctxt) set_sigaddr(x uint32) {
     40 	*(*uint32)(add(unsafe.Pointer(c.info), 12)) = x
     41 }
     42