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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
9d8b612d AS |
2 | #include <stdio.h> |
3 | #include <unistd.h> | |
4 | #include <linux/bpf.h> | |
5 | #include <string.h> | |
6 | #include <assert.h> | |
7 | #include <sys/resource.h> | |
8 | #include "libbpf.h" | |
9 | #include "bpf_load.h" | |
10 | ||
11 | int main(int ac, char **argv) | |
12 | { | |
13 | struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; | |
14 | long key, next_key, value; | |
15 | char filename[256]; | |
16 | struct ksym *sym; | |
17 | int i; | |
18 | ||
19 | snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); | |
20 | setrlimit(RLIMIT_MEMLOCK, &r); | |
21 | ||
22 | if (load_kallsyms()) { | |
23 | printf("failed to process /proc/kallsyms\n"); | |
24 | return 2; | |
25 | } | |
26 | ||
27 | if (load_bpf_file(filename)) { | |
28 | printf("%s", bpf_log_buf); | |
29 | return 1; | |
30 | } | |
31 | ||
32 | for (i = 0; i < 5; i++) { | |
33 | key = 0; | |
34 | printf("kprobing funcs:"); | |
d40fc181 JS |
35 | while (bpf_map_get_next_key(map_fd[0], &key, &next_key) == 0) { |
36 | bpf_map_lookup_elem(map_fd[0], &next_key, &value); | |
9d8b612d AS |
37 | assert(next_key == value); |
38 | sym = ksym_search(value); | |
39 | printf(" %s", sym->name); | |
40 | key = next_key; | |
41 | } | |
42 | if (key) | |
43 | printf("\n"); | |
44 | key = 0; | |
d40fc181 JS |
45 | while (bpf_map_get_next_key(map_fd[0], &key, &next_key) == 0) |
46 | bpf_map_delete_elem(map_fd[0], &next_key); | |
9d8b612d AS |
47 | sleep(1); |
48 | } | |
49 | ||
50 | return 0; | |
51 | } |