Re: Powerpc and software single step

Andrew Cagney
2003-08-20T02:30:34Z

> Could we do this slightly differently? SOFTWARE_SINGLE_STEP_P is used
> in two non-platform-specific files: infptrace.c for a sanity check, and
> infrun.c. In infrun, the only line which matters for this case is in
> resume:
> if (SOFTWARE_SINGLE_STEP_P () && step)
>
> Why not add a hook to check there which lets the user use software
> single step? It'll require playing with the target macros; we'd need
> something like:
> SOFTWARE_SINGLE_STEP - perform software single step
> SOFTWARE_SINGLE_STEP_P - SOFTWARE_SINGLE_STEP available
> SOFTWARE_SINGLE_STEP_ONLY_P - no hardware singlestep available
> (check that in infptrace instead of SOFTWARE_SINGLE_STEP_P?)
>
> I've wanted to flip back and forth at runtime before.

See: Cleanup software single step.
http://sources.redhat.com/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=120
(but don't take the suggested solution literally).

I think kevin was playing with it (?) - search the mail archives. This
needs to be fixed - I don't think a workaround is acceptable.

Andrew