| // SPDX-License-Identifier: GPL-2.0 |
| // Copyright (c) 2017 Facebook |
| |
| #include <linux/ptrace.h> |
| #include <linux/bpf.h> |
| #include <bpf/bpf_helpers.h> |
| |
| int kprobe_res = 0; |
| int kretprobe_res = 0; |
| int uprobe_res = 0; |
| int uretprobe_res = 0; |
| |
| SEC("kprobe/sys_nanosleep") |
| int handle_kprobe(struct pt_regs *ctx) |
| { |
| kprobe_res = 1; |
| return 0; |
| } |
| |
| SEC("kretprobe/sys_nanosleep") |
| int handle_kretprobe(struct pt_regs *ctx) |
| { |
| kretprobe_res = 2; |
| return 0; |
| } |
| |
| SEC("uprobe/trigger_func") |
| int handle_uprobe(struct pt_regs *ctx) |
| { |
| uprobe_res = 3; |
| return 0; |
| } |
| |
| SEC("uretprobe/trigger_func") |
| int handle_uretprobe(struct pt_regs *ctx) |
| { |
| uretprobe_res = 4; |
| return 0; |
| } |
| |
| char _license[] SEC("license") = "GPL"; |