Something went wrong. Try again.
(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
Something went wrong. Try again.
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091// SPDX-License-Identifier: GPL-2.0/* Copyright (c) 2020 Facebook */
#include "vmlinux.h"#include <asm/unistd.h>#include <bpf/bpf_helpers.h>#include <bpf/bpf_tracing.h>#include <bpf/bpf_core_read.h>
#define MY_TV_NSEC 1337
bool tp_called = false;bool raw_tp_called = false;bool tp_btf_called = false;bool kprobe_called = false;bool fentry_called = false;
SEC("tp/syscalls/sys_enter_nanosleep")int handle__tp(struct syscall_trace_enter *args){ struct __kernel_timespec *ts; long tv_nsec;
if (args->nr != __NR_nanosleep) return 0;
ts = (void *)args->args[0]; if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) || tv_nsec != MY_TV_NSEC) return 0;
tp_called = true; return 0;}
SEC("raw_tp/sys_enter")int BPF_PROG(handle__raw_tp, struct pt_regs *regs, long id){ struct __kernel_timespec *ts; long tv_nsec;
if (id != __NR_nanosleep) return 0;
ts = (void *)PT_REGS_PARM1_CORE_SYSCALL(regs); if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) || tv_nsec != MY_TV_NSEC) return 0;
raw_tp_called = true; return 0;}
SEC("tp_btf/sys_enter")int BPF_PROG(handle__tp_btf, struct pt_regs *regs, long id){ struct __kernel_timespec *ts; long tv_nsec;
if (id != __NR_nanosleep) return 0;
ts = (void *)PT_REGS_PARM1_CORE_SYSCALL(regs); if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) || tv_nsec != MY_TV_NSEC) return 0;
tp_btf_called = true; return 0;}
SEC("kprobe")int BPF_KPROBE(handle__kprobe, struct hrtimer *timer, ktime_t tim, u64 delta_ns, const enum hrtimer_mode mode){ if (tim == MY_TV_NSEC) kprobe_called = true; return 0;}
SEC("fentry")int BPF_PROG(handle__fentry, struct hrtimer *timer, ktime_t tim, u64 delta_ns, const enum hrtimer_mode mode){ if (tim == MY_TV_NSEC) fentry_called = true; return 0;}
char _license[] SEC("license") = "GPL";