本文整理汇总了Golang中syscall.PtraceRegs.SetPC方法的典型用法代码示例。如果您正苦于以下问题：Golang PtraceRegs.SetPC方法的具体用法？Golang PtraceRegs.SetPC怎么用？Golang PtraceRegs.SetPC使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类syscall.PtraceRegs的用法示例。
在下文中一共展示了PtraceRegs.SetPC方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: doTrap
// doTrap handles SIGTRAP debug events with a cause of 0. These can
// be caused either by an installed breakpoint, a breakpoint in the
// program text, or by single stepping.
//
// TODO(austin) I think we also get this on an execve syscall.
func (ev *debugEvent) doTrap() (threadState, os.Error) {
t := ev.t
if t.state == singleStepping {
return stopped, nil
}
// Hit a breakpoint. Linux leaves the program counter after
// the breakpoint. If this is an installed breakpoint, we
// need to back the PC up to the breakpoint PC.
var regs syscall.PtraceRegs
err := t.ptraceGetRegs(®s)
if err != nil {
return stopped, err
}
b, ok := t.proc.breakpoints[uintptr(regs.PC())-uintptr(len(bpinst386))]
if !ok {
// We must have hit a breakpoint that was actually in
// the program. Leave the IP where it is so we don't
// re-execute the breakpoint instruction. Expose the
// fact that we stopped with a SIGTRAP.
return stoppedSignal, nil
}
t.breakpoint = b
t.logTrace("at breakpoint %v, backing up PC from %#x", b, regs.PC())
regs.SetPC(uint64(b.pc))
err = t.ptraceSetRegs(®s)
if err != nil {
return stopped, err
}
return stoppedBreakpoint, nil
}