| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "trace-cmd.h" |
| |
| static int call_site_handler(struct trace_seq *s, struct record *record, |
| struct event_format *event) |
| { |
| 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); |
| |
| pevent_register_event_handler(pevent, -1, "kmem", "kmalloc", |
| call_site_handler); |
| |
| pevent_register_event_handler(pevent, -1, "kmem", "kmalloc_node", |
| call_site_handler); |
| |
| pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc", |
| call_site_handler); |
| |
| pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc_node", |
| call_site_handler); |
| |
| pevent_register_event_handler(pevent, -1, "kmem", "kfree", |
| call_site_handler); |
| |
| pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_free", |
| call_site_handler); |
| |
| return 0; |
| } |