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