Re: [PATCH v2 2.6.38-rc8-tip 0/20] 0: Inode based uprobes

[Steven Rostedt]

On Wed, 2011-03-16 at 11:32 -0600, Tom Tromey wrote:
> Steve> I'm more interested in the perf/trace than gdb, as the way gdb is mostly
> Steve> used (at least now) to debug problems in the code with a big hammer
> Steve> (single step, look at registers/variables). That is, gdb is usually very
> Steve> interactive and its best to "stop the code" from running to examine what
> Steve> has happened. gdb is not something you will run on an application that
> Steve> is being used by others.
> 
> It depends.  People do in fact do this stuff.  In recent years gdb got
> its own implementation of "always inserted" breakpoints (basically the
> same idea as uprobes) to support some trickier multi-thread debugging
> scenarios.

Like I said, if it helps out gdb then great! My concern is that we will
want it to replace ptrace, where it may not be designed to, then people
will start NAKing it.

I hope that gdb uses it, and we don't add another interface that nobody
uses. But I don't see that happening with uprobes.

-- Steve


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