C++ (Cpp) __ftrace_dump Examples

Example #1

static int trace_graph_entry_watchdog(struct ftrace_graph_ent *trace)
{
	
	if (unlikely(++graph_hang_thresh > GRAPH_MAX_FUNC_TEST)) {
		ftrace_graph_stop();
		printk(KERN_WARNING "BUG: Function graph tracer hang!\n");
		if (ftrace_dump_on_oops)
			__ftrace_dump(false);
		return 0;
	}

	return trace_graph_entry(trace);
}

Example #2

File: trace_selftest.c Project: ANFS/ANFS-kernel

/* Wrap the real function entry probe to avoid possible hanging */
static int trace_graph_entry_watchdog(struct ftrace_graph_ent *trace)
{
	/* This is harmlessly racy, we want to approximately detect a hang */
	if (unlikely(++graph_hang_thresh > GRAPH_MAX_FUNC_TEST)) {
		ftrace_graph_stop();
		printk(KERN_WARNING "BUG: Function graph tracer hang!\n");
		if (ftrace_dump_on_oops)
			__ftrace_dump(false, DUMP_ALL);
		return 0;
	}

	return trace_graph_entry(trace);
}