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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
char LICENSE[] SEC("license") = "GPL";
int pid = 0;
int fentry_cnt = 0;
int fexit_cnt = 0;
SEC("fentry/__x64_sys_nanosleep")
int BPF_PROG(nanosleep_fentry, const struct pt_regs *regs)
{
if (bpf_get_current_pid_tgid() >> 32 != pid)
return 0;
fentry_cnt++;
return 0;
}
SEC("fexit/__x64_sys_nanosleep")
int BPF_PROG(nanosleep_fexit, const struct pt_regs *regs, int ret)
{
if (bpf_get_current_pid_tgid() >> 32 != pid)
return 0;
fexit_cnt++;
return 0;
}
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