diff options
Diffstat (limited to 'src/xdp/include/bpf_endian.h')
-rw-r--r-- | src/xdp/include/bpf_endian.h | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/src/xdp/include/bpf_endian.h b/src/xdp/include/bpf_endian.h deleted file mode 100644 index 2b0ede3d5..000000000 --- a/src/xdp/include/bpf_endian.h +++ /dev/null @@ -1,58 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* Copied from $(LINUX)/tools/testing/selftests/bpf/bpf_endian.h */ -#ifndef __BPF_ENDIAN__ -#define __BPF_ENDIAN__ - -#include <linux/swab.h> - -/* LLVM's BPF target selects the endianness of the CPU - * it compiles on, or the user specifies (bpfel/bpfeb), - * respectively. The used __BYTE_ORDER__ is defined by - * the compiler, we cannot rely on __BYTE_ORDER from - * libc headers, since it doesn't reflect the actual - * requested byte order. - * - * Note, LLVM's BPF target has different __builtin_bswapX() - * semantics. It does map to BPF_ALU | BPF_END | BPF_TO_BE - * in bpfel and bpfeb case, which means below, that we map - * to cpu_to_be16(). We could use it unconditionally in BPF - * case, but better not rely on it, so that this header here - * can be used from application and BPF program side, which - * use different targets. - */ -#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ -# define __bpf_ntohs(x)__builtin_bswap16(x) -# define __bpf_htons(x)__builtin_bswap16(x) -# define __bpf_constant_ntohs(x)___constant_swab16(x) -# define __bpf_constant_htons(x)___constant_swab16(x) -# define __bpf_ntohl(x)__builtin_bswap32(x) -# define __bpf_htonl(x)__builtin_bswap32(x) -# define __bpf_constant_ntohl(x)___constant_swab32(x) -# define __bpf_constant_htonl(x)___constant_swab32(x) -#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ -# define __bpf_ntohs(x)(x) -# define __bpf_htons(x)(x) -# define __bpf_constant_ntohs(x)(x) -# define __bpf_constant_htons(x)(x) -# define __bpf_ntohl(x)(x) -# define __bpf_htonl(x)(x) -# define __bpf_constant_ntohl(x)(x) -# define __bpf_constant_htonl(x)(x) -#else -# error "Fix your compiler's __BYTE_ORDER__?!" -#endif - -#define bpf_htons(x)\ - (__builtin_constant_p(x) ?\ - __bpf_constant_htons(x) : __bpf_htons(x)) -#define bpf_ntohs(x)\ - (__builtin_constant_p(x) ?\ - __bpf_constant_ntohs(x) : __bpf_ntohs(x)) -#define bpf_htonl(x)\ - (__builtin_constant_p(x) ?\ - __bpf_constant_htonl(x) : __bpf_htonl(x)) -#define bpf_ntohl(x)\ - (__builtin_constant_p(x) ?\ - __bpf_constant_ntohl(x) : __bpf_ntohl(x)) - -#endif /* __BPF_ENDIAN__ */ |