[lkml]   [2007]   [Apr]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: utrace comments
    On Mon, Apr 30, 2007 at 10:18:09AM +0100, Russell King wrote:
    > Roland's idea of single-stepping is that it *must* be supported by
    > hardware for utrace to use it. There are a number of architectures
    > which can only do single-stepping by modifying the text of the
    > program being single stepped. ARM is one such example.
    > As such, even when utrace is complete, some architectures will never
    > support in-kernel single step with utrace. I believe Roland's idea
    > is to have single step supported on these via some vapourware userspace
    > library.

    Does the current arm ptrace code support single stepping in kernelspace?
    If yes we absolutely need to continue to support it.

    > I'd also like to see utrace become *optional*
    > for architectures to support, rather than as it currently stands as
    > a *mandatory* requirement when merged.

    No way we'd keep both the old ptrace mess and utrace in the same tree.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2007-04-30 11:25    [W:0.020 / U:2.548 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site