signal_openbsd_386.go

Documentation: runtime

     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  //go:nosplit
    15  //go:nowritebarrierrec
    16  func (c *sigctxt) regs() *sigcontext {
    17  	return (*sigcontext)(c.ctxt)
    18  }
    19  
    20  func (c *sigctxt) eax() uint32 { return c.regs().sc_eax }
    21  func (c *sigctxt) ebx() uint32 { return c.regs().sc_ebx }
    22  func (c *sigctxt) ecx() uint32 { return c.regs().sc_ecx }
    23  func (c *sigctxt) edx() uint32 { return c.regs().sc_edx }
    24  func (c *sigctxt) edi() uint32 { return c.regs().sc_edi }
    25  func (c *sigctxt) esi() uint32 { return c.regs().sc_esi }
    26  func (c *sigctxt) ebp() uint32 { return c.regs().sc_ebp }
    27  func (c *sigctxt) esp() uint32 { return c.regs().sc_esp }
    28  
    29  //go:nosplit
    30  //go:nowritebarrierrec
    31  func (c *sigctxt) eip() uint32 { return c.regs().sc_eip }
    32  
    33  func (c *sigctxt) eflags() uint32  { return c.regs().sc_eflags }
    34  func (c *sigctxt) cs() uint32      { return c.regs().sc_cs }
    35  func (c *sigctxt) fs() uint32      { return c.regs().sc_fs }
    36  func (c *sigctxt) gs() uint32      { return c.regs().sc_gs }
    37  func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
    38  func (c *sigctxt) sigaddr() uint32 {
    39  	return *(*uint32)(add(unsafe.Pointer(c.info), 12))
    40  }
    41  
    42  func (c *sigctxt) set_eip(x uint32)     { c.regs().sc_eip = x }
    43  func (c *sigctxt) set_esp(x uint32)     { c.regs().sc_esp = x }
    44  func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
    45  func (c *sigctxt) set_sigaddr(x uint32) {
    46  	*(*uint32)(add(unsafe.Pointer(c.info), 12)) = x
    47  }
    48
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