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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) eax() uint32       { return c.regs().eax }
     16 func (c *sigctxt) ebx() uint32       { return c.regs().ebx }
     17 func (c *sigctxt) ecx() uint32       { return c.regs().ecx }
     18 func (c *sigctxt) edx() uint32       { return c.regs().edx }
     19 func (c *sigctxt) edi() uint32       { return c.regs().edi }
     20 func (c *sigctxt) esi() uint32       { return c.regs().esi }
     21 func (c *sigctxt) ebp() uint32       { return c.regs().ebp }
     22 func (c *sigctxt) esp() uint32       { return c.regs().esp }
     23 func (c *sigctxt) eip() uint32       { return c.regs().eip }
     24 func (c *sigctxt) eflags() uint32    { return c.regs().eflags }
     25 func (c *sigctxt) cs() uint32        { return uint32(c.regs().cs) }
     26 func (c *sigctxt) fs() uint32        { return uint32(c.regs().fs) }
     27 func (c *sigctxt) gs() uint32        { return uint32(c.regs().gs) }
     28 func (c *sigctxt) sigcode() uint32   { return uint32(c.info.si_code) }
     29 func (c *sigctxt) sigaddr() uint32   { return c.info.si_addr }
     30 
     31 func (c *sigctxt) set_eip(x uint32)     { c.regs().eip = x }
     32 func (c *sigctxt) set_esp(x uint32)     { c.regs().esp = x }
     33 func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
     34 func (c *sigctxt) set_sigaddr(x uint32) {
     35 	*(*uintptr)(add(unsafe.Pointer(c.info), 2*ptrSize)) = uintptr(x)
     36 }
     37