| Yonghong Song | 28dbf86 | 2018-04-28 22:28:13 -0700 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __TRACE_HELPER_H |
| 3 | #define __TRACE_HELPER_H |
| 4 | |
| Jakub Kicinski | d0cabbb | 2018-05-10 10:24:40 -0700 | [diff] [blame] | 5 | #include <libbpf.h> |
| 6 | |
| Yonghong Song | 28dbf86 | 2018-04-28 22:28:13 -0700 | [diff] [blame] | 7 | struct ksym { |
| 8 | long addr; |
| 9 | char *name; |
| 10 | }; |
| 11 | |
| 12 | int load_kallsyms(void); |
| 13 | struct ksym *ksym_search(long key); |
| 14 | |
| Jakub Kicinski | d0cabbb | 2018-05-10 10:24:40 -0700 | [diff] [blame] | 15 | typedef enum bpf_perf_event_ret (*perf_event_print_fn)(void *data, int size); |
| Yonghong Song | 28dbf86 | 2018-04-28 22:28:13 -0700 | [diff] [blame] | 16 | |
| 17 | int perf_event_mmap(int fd); |
| Jakub Kicinski | d0cabbb | 2018-05-10 10:24:40 -0700 | [diff] [blame] | 18 | /* return LIBBPF_PERF_EVENT_DONE or LIBBPF_PERF_EVENT_ERROR */ |
| Yonghong Song | 28dbf86 | 2018-04-28 22:28:13 -0700 | [diff] [blame] | 19 | int perf_event_poller(int fd, perf_event_print_fn output_fn); |
| 20 | #endif |