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