Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 2 | #include <stdio.h> |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 3 | #include <unistd.h> |
Daniel T. Lee | 63841bc | 2020-05-16 13:06:05 +0900 | [diff] [blame] | 4 | #include <bpf/libbpf.h> |
Daniel T. Lee | 24a6034 | 2020-03-21 19:04:23 +0900 | [diff] [blame] | 5 | #include "trace_helpers.h" |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 6 | |
| 7 | int main(int ac, char **argv) |
| 8 | { |
Daniel T. Lee | 63841bc | 2020-05-16 13:06:05 +0900 | [diff] [blame] | 9 | struct bpf_link *link = NULL; |
| 10 | struct bpf_program *prog; |
| 11 | struct bpf_object *obj; |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 12 | char filename[256]; |
Daniel T. Lee | 63841bc | 2020-05-16 13:06:05 +0900 | [diff] [blame] | 13 | FILE *f; |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 14 | |
| 15 | snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); |
Daniel T. Lee | 63841bc | 2020-05-16 13:06:05 +0900 | [diff] [blame] | 16 | obj = bpf_object__open_file(filename, NULL); |
| 17 | if (libbpf_get_error(obj)) { |
| 18 | fprintf(stderr, "ERROR: opening BPF object file failed\n"); |
| 19 | return 0; |
| 20 | } |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 21 | |
Daniel T. Lee | 63841bc | 2020-05-16 13:06:05 +0900 | [diff] [blame] | 22 | prog = bpf_object__find_program_by_name(obj, "bpf_prog1"); |
| 23 | if (!prog) { |
| 24 | fprintf(stderr, "ERROR: finding a prog in obj file failed\n"); |
| 25 | goto cleanup; |
| 26 | } |
| 27 | |
| 28 | /* load BPF program */ |
| 29 | if (bpf_object__load(obj)) { |
| 30 | fprintf(stderr, "ERROR: loading BPF object file failed\n"); |
| 31 | goto cleanup; |
| 32 | } |
| 33 | |
| 34 | link = bpf_program__attach(prog); |
| 35 | if (libbpf_get_error(link)) { |
| 36 | fprintf(stderr, "ERROR: bpf_program__attach failed\n"); |
| 37 | link = NULL; |
| 38 | goto cleanup; |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | f = popen("taskset 1 ping -c5 localhost", "r"); |
| 42 | (void) f; |
| 43 | |
| 44 | read_trace_pipe(); |
| 45 | |
Daniel T. Lee | 63841bc | 2020-05-16 13:06:05 +0900 | [diff] [blame] | 46 | cleanup: |
| 47 | bpf_link__destroy(link); |
| 48 | bpf_object__close(obj); |
Alexei Starovoitov | b896c4f | 2015-03-25 12:49:23 -0700 | [diff] [blame] | 49 | return 0; |
| 50 | } |