> I would think there would be a different REQUEST value to mean "set a > hardware breakpoint". Roland McGrath (cc'd) might be able to tell us > what other architectures do.
Other architectures don't give a good model to follow. (If anything, they just trivally virtualize their own idiosyncratic hardware.) What I want to see done for this in the future is reviving and finishing the hw_breakpoint work begun by Alan Stern, and porting that to each arch's particular hardware features. On that we'd build any new interfaces in abstract machine-independent terms, just describing the constraints of what the hardware can do, rather than having the user interface involve mimicking hardware encodings. (The existing hardware-idiosyncratic ptrace interfaces would tie into hw_breakpoint for backward compatibility.) Thanks, Roland _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
