1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2017 Facebook 3 4 #include "vmlinux.h" 5 #include <bpf/bpf_helpers.h> 6 #include <bpf/bpf_tracing.h> 7 #include <bpf/bpf_core_read.h> 8 #include "bpf_misc.h" 9 10 int kprobe_res = 0; 11 12 /** 13 * This program will be manually made sleepable on the userspace side 14 * and should thus be unattachable. 15 */ 16 SEC("kprobe/" SYS_PREFIX "sys_nanosleep") 17 int handle_kprobe_sleepable(struct pt_regs *ctx) 18 { 19 kprobe_res = 1; 20 return 0; 21 } 22 23 char _license[] SEC("license") = "GPL"; 24