signal_openbsd_arm.go

     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) r0() uint32  { return c.regs().sc_r0 }
    21  func (c *sigctxt) r1() uint32  { return c.regs().sc_r1 }
    22  func (c *sigctxt) r2() uint32  { return c.regs().sc_r2 }
    23  func (c *sigctxt) r3() uint32  { return c.regs().sc_r3 }
    24  func (c *sigctxt) r4() uint32  { return c.regs().sc_r4 }
    25  func (c *sigctxt) r5() uint32  { return c.regs().sc_r5 }
    26  func (c *sigctxt) r6() uint32  { return c.regs().sc_r6 }
    27  func (c *sigctxt) r7() uint32  { return c.regs().sc_r7 }
    28  func (c *sigctxt) r8() uint32  { return c.regs().sc_r8 }
    29  func (c *sigctxt) r9() uint32  { return c.regs().sc_r9 }
    30  func (c *sigctxt) r10() uint32 { return c.regs().sc_r10 }
    31  func (c *sigctxt) fp() uint32  { return c.regs().sc_r11 }
    32  func (c *sigctxt) ip() uint32  { return c.regs().sc_r12 }
    33  func (c *sigctxt) sp() uint32  { return c.regs().sc_usr_sp }
    34  func (c *sigctxt) lr() uint32  { return c.regs().sc_usr_lr }
    35  
    36  //go:nosplit
    37  //go:nowritebarrierrec
    38  func (c *sigctxt) pc() uint32 { return c.regs().sc_pc }
    39  
    40  func (c *sigctxt) cpsr() uint32    { return c.regs().sc_spsr }
    41  func (c *sigctxt) fault() uintptr  { return uintptr(c.sigaddr()) }
    42  func (c *sigctxt) trap() uint32    { return 0 }
    43  func (c *sigctxt) error() uint32   { return 0 }
    44  func (c *sigctxt) oldmask() uint32 { return 0 }
    45  
    46  func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
    47  func (c *sigctxt) sigaddr() uint32 {
    48  	return *(*uint32)(add(unsafe.Pointer(c.info), 16))
    49  }
    50  
    51  func (c *sigctxt) set_pc(x uint32)  { c.regs().sc_pc = x }
    52  func (c *sigctxt) set_sp(x uint32)  { c.regs().sc_usr_sp = x }
    53  func (c *sigctxt) set_lr(x uint32)  { c.regs().sc_usr_lr = x }
    54  func (c *sigctxt) set_r10(x uint32) { c.regs().sc_r10 = x }
    55  
    56  func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
    57  func (c *sigctxt) set_sigaddr(x uint32) {
    58  	*(*uint32)(add(unsafe.Pointer(c.info), 16)) = x
    59  }
    60
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