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// 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);
}
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