> I'm getting the feeling that the question of whether to step into > signal handlers is orthogonal to single-stepping;
No, it's not. You only ever step into a handler when you ask to. That's already the interface. > Platforms which don't implement PTRACE_SINGLESTEP would probably > appreciate this. A "single step" which stops you after setting up the > signal trampoline and adjusting the PC, before executing any > instructions in the handler. That's what PTRACE_SINGLESTEP with a nonzero signal number does since it was fixed.
