162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci/* Copyright (c) 2021 Facebook */ 362306a36Sopenharmony_ci#include "vmlinux.h" 462306a36Sopenharmony_ci#include <bpf/bpf_helpers.h> 562306a36Sopenharmony_ci#include <bpf/bpf_tracing.h> 662306a36Sopenharmony_ci#include "bpf_misc.h" 762306a36Sopenharmony_ci 862306a36Sopenharmony_cichar LICENSE[] SEC("license") = "GPL"; 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ciint pid = 0; 1162306a36Sopenharmony_ciint fentry_cnt = 0; 1262306a36Sopenharmony_ciint fexit_cnt = 0; 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ciSEC("fentry/" SYS_PREFIX "sys_nanosleep") 1562306a36Sopenharmony_ciint nanosleep_fentry(void *ctx) 1662306a36Sopenharmony_ci{ 1762306a36Sopenharmony_ci if (bpf_get_current_pid_tgid() >> 32 != pid) 1862306a36Sopenharmony_ci return 0; 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci fentry_cnt++; 2162306a36Sopenharmony_ci return 0; 2262306a36Sopenharmony_ci} 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ciSEC("fexit/" SYS_PREFIX "sys_nanosleep") 2562306a36Sopenharmony_ciint nanosleep_fexit(void *ctx) 2662306a36Sopenharmony_ci{ 2762306a36Sopenharmony_ci if (bpf_get_current_pid_tgid() >> 32 != pid) 2862306a36Sopenharmony_ci return 0; 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci fexit_cnt++; 3162306a36Sopenharmony_ci return 0; 3262306a36Sopenharmony_ci} 33