samples/bpf/tracex7_kern.c

   1 #include <uapi/linux/ptrace.h>
   2 #include <uapi/linux/bpf.h>
   3 #include <linux/version.h>
   4 #include "bpf_helpers.h"
   5
   6 SEC("kprobe/open_ctree")
   7 int bpf_prog1(struct pt_regs *ctx)
   8 {
   9         unsigned long rc = -12;
  10
  11         bpf_override_return(ctx, rc);
  12         return 0;
  13 }
  14
  15 char _license[] SEC("license") = "GPL";
  16 u32 _version SEC("version") = LINUX_VERSION_CODE;