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Message-Id: <1252923251-6735-1-git-send-email-jolsa@redhat.com>
Date: Mon, 14 Sep 2009 12:14:09 +0200
From: jolsa@...hat.com
To: mingo@...e.hu, rostedt@...dmis.org
Cc: linux-kernel@...r.kernel.org
Subject: [RFC PATCH 0/2] tracing - signal tracer, support multiple pids in set_pid_ftrace
I was debugging some ptrace applications and got to the idea of
tracing signals - signal tracer. There's probably possibility to
trace more info than just signal delivery info (like ignored
signals deliveries, queue status...).
While doing this I realized it might be worth to have ability to trace
more independent processes via set_pid_ftrace file.
Althought I'm sending this as RFC, attached patches work for me.
I'm open to any suggestions/comments/ideas.
1/2 - signal trace
2/2 - multiple pids support for set_pid_ftrace file
thanks,
jirka
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
include/linux/signaltrace.h | 22 ++++
include/linux/tracehook.h | 14 +++
kernel/signal.c | 3 +
kernel/trace/Kconfig | 11 ++
kernel/trace/Makefile | 1 +
kernel/trace/ftrace.c | 226 +++++++++++++++++++++++++++++++------------
kernel/trace/trace.h | 13 ++-
kernel/trace/trace_signal.c | 132 +++++++++++++++++++++++++
8 files changed, 356 insertions(+), 66 deletions(-)
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