[0/2] tracing: addition of event probe

Message

Steven Rostedt July 16, 2021, 3:26 a.m. UTC

Hi Tzvetomir,

Here's the updates to your patch. the first patch is your WIP that I forward
ported to the latest kernel. The second patches is my hacks to hook with the
triggers. It's still buggy and needs a bit of work (as we talked about).

I'll comment in the code. Please just merge the two patches together, and
fix them up to a proper patch that we can send to LKML in a week or two.

Tom, I Cc'd you because I wanted you to see where we are at, and because I
mentioned this work with the fix I sent to Linus (removing 'char *' as a
string for histograms). If you apply that patch, and these two, you can play
with it a little, but it is buggy. It's not even in a "RFC" level yet.
Thus, I'm Cc'ing you as more of an FYI than to ask you to review the
patches. There's more work to be done.

I'll reply to this patch set stating some of the know issues.


Steven Rostedt (VMware) (1):
      tracing: Update to the event probes

Tzvetomir (VMware) Stoyanov (1):
      Add new kprobe on tracepoint

----
 include/linux/kprobes.h      |  13 ++
 include/linux/trace_events.h |   4 +
 kernel/trace/trace.h         |   5 +
 kernel/trace/trace_kprobe.c  | 521 +++++++++++++++++++++++++++++++++++++++++--
 kernel/trace/trace_probe.c   |  25 ++-
 kernel/trace/trace_probe.h   |   7 +-
 kernel/trace/trace_uprobe.c  |   2 +-
 7 files changed, 554 insertions(+), 23 deletions(-)