Messages in this thread | | | Date | Tue, 23 Jun 2009 18:58:57 +0530 | From | "K.Prasad" <> | Subject | Hardware Breakpoint interfaces for mainline? |
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Hi Ingo, The hardware breakpoint patches and the ksym tracer (an ftrace plugin), as you know, are part of the -tip tree.
The patches to use debug registers by the kernel have been pursued since long (IIRC, since kprobe days) and their recent inclusion in -tip tree is done after accomodating your suggestions about the breakpoint infrastructure's design and after introducing an associated use-case in ftrace (ksym tracer).
The breakpoint interfaces along with ksym tracer can be a fine addition to the kernel's debugging abilities in a variety of ways such as debugging memory corruption, data/memory access profiling, etc.
Your recent concerns about a few usability issues and minor bugs in ksym tracer have been addressed and the relevant patches have been submitted for inclusion in -tip.
I believe that it is still your plan to submit this feature for mainline inclusion during this merge window, allowing developers to benefit from the debug register's abilities in x86 and spur further development of features on it.
In this context, do you find a concern that still require the patches to remain in -tip? Or are there plans to submit the hardware breakpoint patchset for upstream inclusion during this 2.6.31 merge window itself?
Kindly let me know of your plans for this feature.
Thanks, K.Prasad
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