| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2020 Facebook */ |
| |
| #include "vmlinux.h" |
| #include <bpf/bpf_helpers.h> |
| #include <bpf/bpf_endian.h> |
| |
| #define IN16 0x1234 |
| #define IN32 0x12345678U |
| #define IN64 0x123456789abcdef0ULL |
| |
| __u16 in16 = 0; |
| __u32 in32 = 0; |
| __u64 in64 = 0; |
| |
| __u16 out16 = 0; |
| __u32 out32 = 0; |
| __u64 out64 = 0; |
| |
| __u16 const16 = 0; |
| __u32 const32 = 0; |
| __u64 const64 = 0; |
| |
| SEC("raw_tp/sys_enter") |
| int sys_enter(const void *ctx) |
| { |
| out16 = __builtin_bswap16(in16); |
| out32 = __builtin_bswap32(in32); |
| out64 = __builtin_bswap64(in64); |
| const16 = ___bpf_swab16(IN16); |
| const32 = ___bpf_swab32(IN32); |
| const64 = ___bpf_swab64(IN64); |
| |
| return 0; |
| } |
| |
| char _license[] SEC("license") = "GPL"; |
