Ah, that’s right, we did it in debugserver as well. Apple used to have a
disassembly framework that we used for the purpose (separate from llvm). But
that’s long gone.
Jim
> On Nov 29, 2018, at 1:22 AM, Pavel Labath wrote:
>
> On 28/11/2018 21:05, Jim Ingham via lldb-dev wrote:
>> The main complication would be if your new target didn't support
>> hardware-single-step. If that's the case you will have to have a
>> Disassembler that can predict the target PC of all instructions (when
>> stopped at that instruction) since you'll have to use software breakpoints
>> to drive the lowest level of stepping. There's support in there for
>> handling that at a high level since the first couple of iPhone ARM chips
>> didn't have single step support but we haven't actually had on any real
>> systems we support that lack hardware single step in years, so it may need
>> some reviving.
>
> Linux still uses software single stepping on arm(32), but the code for that
> is in lldb-server, so the client doesn't even know it's being used. Of course
> that won't help you if you're not using lldb-server.
>
> Was there ever software single-stepping support in the client?
>
> pl
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