samples/bpf/tracex7_kern.c

0001 #include <uapi/linux/ptrace.h>
0002 #include <uapi/linux/bpf.h>
0003 #include <linux/version.h>
0004 #include <bpf/bpf_helpers.h>
0005
0006 SEC("kprobe/open_ctree")
0007 int bpf_prog1(struct pt_regs *ctx)
0008 {
0009     unsigned long rc = -12;
0010
0011     bpf_override_return(ctx, rc);
0012     return 0;
0013 }
0014
0015 char _license[] SEC("license") = "GPL";
0016 u32 _version SEC("version") = LINUX_VERSION_CODE;