From 6e4432bc6f75efe8221991e3eeee9647d8699fad Mon Sep 17 00:00:00 2001
From: Ingo Weinhold <ingo_weinhold@gmx.de>
Date: Sun, 9 Mar 2008 17:45:52 +0000
Subject: [PATCH] Add a tracing entry when executing a signal handler.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24333 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/system/kernel/signal.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/system/kernel/signal.cpp b/src/system/kernel/signal.cpp
index db46be4d35..ff0582f73c 100644
--- a/src/system/kernel/signal.cpp
+++ b/src/system/kernel/signal.cpp
@@ -83,6 +83,28 @@ class HandleSignals : public AbstractTraceEntry {
 };
 
 
+class ExecuteSignalHandler : public AbstractTraceEntry {
+	public:
+		ExecuteSignalHandler(int signal, struct sigaction* handler)
+			:
+			fSignal(signal),
+			fHandler((void*)handler->sa_handler)
+		{
+			Initialized();
+		}
+
+		virtual void AddDump(TraceOutput& out)
+		{
+			out.Print("signal exec handler: signal: %d, handler: %p",
+				fSignal, fHandler);
+		}
+
+	private:
+		int		fSignal;
+		void*	fHandler;
+};
+
+
 class SendSignal : public AbstractTraceEntry {
 	public:
 		SendSignal(pid_t target, uint32 signal, uint32 flags)
@@ -388,6 +410,8 @@ handle_signals(struct thread *thread)
 		if (!restart || (handler->sa_flags & SA_RESTART) == 0)
 			atomic_and(&thread->flags, ~THREAD_FLAGS_RESTART_SYSCALL);
 
+		T(ExecuteSignalHandler(signal, handler));
+
 		TRACE(("### Setting up custom signal handler frame...\n"));
 		arch_setup_signal_frame(thread, handler, signal,
 			atomic_get(&thread->sig_block_mask));