projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f8256288 JO |
1 | /* |
| 2 | * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> | |
| 3 | * | |
| 4 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
| 5 | * This program is free software; you can redistribute it and/or | |
| 6 | * modify it under the terms of the GNU Lesser General Public | |
| 7 | * License as published by the Free Software Foundation; | |
| 8 | * version 2.1 of the License (not later!) | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | * GNU Lesser General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU Lesser General Public | |
| 16 | * License along with this program; if not, see <http://www.gnu.org/licenses> | |
| 17 | * | |
| 18 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
| 19 | */ | |
| 20 | #include <stdio.h> | |
| 21 | #include <stdlib.h> | |
| 22 | #include <string.h> | |
| 23 | ||
| 24 | #include "event-parse.h" | |
| 25 | ||
| 26 | static int call_site_handler(struct trace_seq *s, struct pevent_record *record, | |
| 27 | struct event_format *event, void *context) | |
| 28 | { | |
| 29 | struct format_field *field; | |
| 30 | unsigned long long val, addr; | |
| 31 | void *data = record->data; | |
| 32 | const char *func; | |
| 33 | ||
| 34 | field = pevent_find_field(event, "call_site"); | |
| 35 | if (!field) | |
| 36 | return 1; | |
| 37 | ||
| 38 | if (pevent_read_number_field(field, data, &val)) | |
| 39 | return 1; | |
| 40 | ||
| 41 | func = pevent_find_function(event->pevent, val); | |
| 42 | if (!func) | |
| 43 | return 1; | |
| 44 | ||
| 45 | addr = pevent_find_function_address(event->pevent, val); | |
| 46 | ||
| 47 | trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr)); | |
| 48 | return 1; | |
| 49 | } | |
| 50 | ||
| 51 | int PEVENT_PLUGIN_LOADER(struct pevent *pevent) | |
| 52 | { | |
| 53 | pevent_register_event_handler(pevent, -1, "kmem", "kfree", | |
| 54 | call_site_handler, NULL); | |
| 55 | ||
| 56 | pevent_register_event_handler(pevent, -1, "kmem", "kmalloc", | |
| 57 | call_site_handler, NULL); | |
| 58 | ||
| 59 | pevent_register_event_handler(pevent, -1, "kmem", "kmalloc_node", | |
| 60 | call_site_handler, NULL); | |
| 61 | ||
| 62 | pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc", | |
| 63 | call_site_handler, NULL); | |
| 64 | ||
| 65 | pevent_register_event_handler(pevent, -1, "kmem", | |
| 66 | "kmem_cache_alloc_node", | |
| 67 | call_site_handler, NULL); | |
| 68 | ||
| 69 | pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_free", | |
| 70 | call_site_handler, NULL); | |
| 71 | return 0; | |
| 72 | } | |
| 11e99c55 NK |
73 | |
| 74 | void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) | |
| 75 | { | |
| 76 | pevent_unregister_event_handler(pevent, -1, "kmem", "kfree", | |
| 77 | call_site_handler, NULL); | |
| 78 | ||
| 79 | pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc", | |
| 80 | call_site_handler, NULL); | |
| 81 | ||
| 82 | pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node", | |
| 83 | call_site_handler, NULL); | |
| 84 | ||
| 85 | pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc", | |
| 86 | call_site_handler, NULL); | |
| 87 | ||
| 88 | pevent_unregister_event_handler(pevent, -1, "kmem", | |
| 89 | "kmem_cache_alloc_node", | |
| 90 | call_site_handler, NULL); | |
| 91 | ||
| 92 | pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free", | |
| 93 | call_site_handler, NULL); | |
| 94 | } |