| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2019 Facebook */ |
| |
| #include <stdbool.h> |
| #include <linux/bpf.h> |
| #include "bpf_helpers.h" |
| |
| struct s { |
| int a; |
| long long b; |
| } __attribute__((packed)); |
| |
| int in1 = 0; |
| long long in2 = 0; |
| char in3 = '\0'; |
| long long in4 __attribute__((aligned(64))) = 0; |
| struct s in5 = {}; |
| |
| long long out2 = 0; |
| char out3 = 0; |
| long long out4 = 0; |
| int out1 = 0; |
| |
| extern bool CONFIG_BPF_SYSCALL __kconfig; |
| extern int LINUX_KERNEL_VERSION __kconfig; |
| bool bpf_syscall = 0; |
| int kern_ver = 0; |
| |
| SEC("raw_tp/sys_enter") |
| int handler(const void *ctx) |
| { |
| static volatile struct s out5; |
| |
| out1 = in1; |
| out2 = in2; |
| out3 = in3; |
| out4 = in4; |
| out5 = in5; |
| |
| bpf_syscall = CONFIG_BPF_SYSCALL; |
| kern_ver = LINUX_KERNEL_VERSION; |
| |
| return 0; |
| } |
| |
| char _license[] SEC("license") = "GPL"; |
