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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