[patch/RFA] multiarch INSTRUCTION_NULLIFIED
Wed Dec 1 21:29:00 GMT 2004
Randolph Chung wrote:
>>>well, first i want to understand the problem. because i'm still not
>>>yet 100% convinced that step_through_delay will work. simply using the
>>>"instruction_nullified" method in hppa-tdep as the "step_through_delay"
>>>method certainly is not working...
>>When doing a stepi? step_through_delay certainly won't help when it
>>comes to doing a backtrace from the nullified instruction.
> when doing a step.
I was thinking that STEPI might be easier to debug :-)
Anyway, trying modifying gdbarch_read_pc and unwind_pc (I suspect you
need to modify both - which is a bug) to read something like:
if (instruction nullified)
it should fool GDB into thinking that it's one instruction ahead of itself.
More information about the Gdb-patches