On 01/20/2012 02:40 PM, Roland McGrath wrote: > If you change the size of a regset, then the new full size will be the size > of the core file notes. Existing userland tools will not be expecting > this, they expect a known exact size. If you need to add new stuff, it > really is easier all around to add a new regset flavor. When adding a new > one, you can make it variable-sized from the start so as to be extensible > in the future. We did this for NT_X86_XSTATE, for example. > > Thanks, > Roland Hi Roland, What is needed to make a regset variable-sized? Just declaring that it may change in size in the future, or does one need a length field at the top (I would personally have expected that both notes and ptrace would have out-of-band methods for getting the size?) -hp-a -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
