// SPDX-License-Identifier: LGPL-2.1/* * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> */#include <stdio.h>#include <stdlib.h>#include <string.h> #include "event-parse.h"#include "trace-seq.h" static int call_site_handler(struct trace_seq *s, struct tep_record *record,			     struct tep_event *event, void *context){	struct tep_format_field *field;	unsigned long long val, addr;	void *data = record->data;	const char *func; 	field = tep_find_field(event, "call_site");	if (!field)		return 1; 	if (tep_read_number_field(field, data, &val))		return 1; 	func = tep_find_function(event->tep, val);	if (!func)		return 1; 	addr = tep_find_function_address(event->tep, val); 	trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr));	return 1;} int TEP_PLUGIN_LOADER(struct tep_handle *tep){	tep_register_event_handler(tep, -1, "kmem", "kfree",				   call_site_handler, NULL); 	tep_register_event_handler(tep, -1, "kmem", "kmalloc",				   call_site_handler, NULL); 	tep_register_event_handler(tep, -1, "kmem", "kmalloc_node",				   call_site_handler, NULL); 	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_alloc",				   call_site_handler, NULL); 	tep_register_event_handler(tep, -1, "kmem",				   "kmem_cache_alloc_node",				   call_site_handler, NULL); 	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_free",				   call_site_handler, NULL);	return 0;} void TEP_PLUGIN_UNLOADER(struct tep_handle *tep){	tep_unregister_event_handler(tep, -1, "kmem", "kfree",				     call_site_handler, NULL); 	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc",				     call_site_handler, NULL); 	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc_node",				     call_site_handler, NULL); 	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_alloc",				     call_site_handler, NULL); 	tep_unregister_event_handler(tep, -1, "kmem",				     "kmem_cache_alloc_node",				     call_site_handler, NULL); 	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_free",				     call_site_handler, NULL);}