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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2009-11-24 16:56:51 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-26 10:55:38 +0100 |
| commit | f9d4257e01d266e67420cc99d456b6d4c8464f54 (patch) | |
| tree | 6661efc95e3002b9b1bf8d9c94deb9ec736a04de /kernel/signal.c | |
| parent | d1eb650ff4130972fa21462fa49cd35a2865403b (diff) | |
| download | lwn-f9d4257e01d266e67420cc99d456b6d4c8464f54.tar.gz lwn-f9d4257e01d266e67420cc99d456b6d4c8464f54.zip | |
tracepoint: Add signal deliver event
Add a tracepoint where a process gets a signal. This tracepoint
shows signal-number, sa-handler and sa-flag.
Changes in v3:
- Add docbook style comments
Changes in v2:
- Add siginfo argument
- Fix comment
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Reviewed-by: Jason Baron <jbaron@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Oleg Nesterov <oleg@redhat.com>
LKML-Reference: <20091124215651.30449.20926.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index a1e0cc6b32c3..349d44937406 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1840,6 +1840,9 @@ relock: ka = &sighand->action[signr-1]; } + /* Trace actually delivered signals. */ + trace_signal_deliver(signr, info, ka); + if (ka->sa.sa_handler == SIG_IGN) /* Do nothing. */ continue; if (ka->sa.sa_handler != SIG_DFL) { |