/* * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License (not later!) * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not,  see <http://www.gnu.org/licenses> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */#include <stdio.h>#include <stdlib.h>#include <string.h> #include "event-parse.h" static int call_site_handler(struct trace_seq *s, struct pevent_record *record,			     struct event_format *event, void *context){	struct format_field *field;	unsigned long long val, addr;	void *data = record->data;	const char *func; 	field = pevent_find_field(event, "call_site");	if (!field)		return 1; 	if (pevent_read_number_field(field, data, &val))		return 1; 	func = pevent_find_function(event->pevent, val);	if (!func)		return 1; 	addr = pevent_find_function_address(event->pevent, val); 	trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr));	return 1;} int PEVENT_PLUGIN_LOADER(struct pevent *pevent){	pevent_register_event_handler(pevent, -1, "kmem", "kfree",				      call_site_handler, NULL); 	pevent_register_event_handler(pevent, -1, "kmem", "kmalloc",				      call_site_handler, NULL); 	pevent_register_event_handler(pevent, -1, "kmem", "kmalloc_node",				      call_site_handler, NULL); 	pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",				      call_site_handler, NULL); 	pevent_register_event_handler(pevent, -1, "kmem",				      "kmem_cache_alloc_node",				      call_site_handler, NULL); 	pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_free",				      call_site_handler, NULL);	return 0;} void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent){	pevent_unregister_event_handler(pevent, -1, "kmem", "kfree",					call_site_handler, NULL); 	pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc",					call_site_handler, NULL); 	pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node",					call_site_handler, NULL); 	pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",					call_site_handler, NULL); 	pevent_unregister_event_handler(pevent, -1, "kmem",					"kmem_cache_alloc_node",					call_site_handler, NULL); 	pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free",					call_site_handler, NULL);}