51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <bpf/libbpf.h>
|
|
#include "trace_helpers.h"
|
|
|
|
int main(int ac, char **argv)
|
|
{
|
|
struct bpf_link *link = NULL;
|
|
struct bpf_program *prog;
|
|
struct bpf_object *obj;
|
|
char filename[256];
|
|
FILE *f;
|
|
|
|
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
|
|
obj = bpf_object__open_file(filename, NULL);
|
|
if (libbpf_get_error(obj)) {
|
|
fprintf(stderr, "ERROR: opening BPF object file failed\n");
|
|
return 0;
|
|
}
|
|
|
|
prog = bpf_object__find_program_by_name(obj, "bpf_prog1");
|
|
if (!prog) {
|
|
fprintf(stderr, "ERROR: finding a prog in obj file failed\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
/* load BPF program */
|
|
if (bpf_object__load(obj)) {
|
|
fprintf(stderr, "ERROR: loading BPF object file failed\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
link = bpf_program__attach(prog);
|
|
if (libbpf_get_error(link)) {
|
|
fprintf(stderr, "ERROR: bpf_program__attach failed\n");
|
|
link = NULL;
|
|
goto cleanup;
|
|
}
|
|
|
|
f = popen("taskset 1 ping -c5 localhost", "r");
|
|
(void) f;
|
|
|
|
read_trace_pipe();
|
|
|
|
cleanup:
|
|
bpf_link__destroy(link);
|
|
bpf_object__close(obj);
|
|
return 0;
|
|
}
|