diff options
Diffstat (limited to 'tools/testing/selftests/bpf/bpf_endian.h')
| -rw-r--r-- | tools/testing/selftests/bpf/bpf_endian.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/bpf_endian.h b/tools/testing/selftests/bpf/bpf_endian.h new file mode 100644 index 000000000000..19d0604f8694 --- /dev/null +++ b/tools/testing/selftests/bpf/bpf_endian.h @@ -0,0 +1,23 @@ +#ifndef __BPF_ENDIAN__ +#define __BPF_ENDIAN__ + +#include <asm/byteorder.h> + +#if __BYTE_ORDER == __LITTLE_ENDIAN +# define __bpf_ntohs(x) __builtin_bswap16(x) +# define __bpf_htons(x) __builtin_bswap16(x) +#elif __BYTE_ORDER == __BIG_ENDIAN +# define __bpf_ntohs(x) (x) +# define __bpf_htons(x) (x) +#else +# error "Fix your __BYTE_ORDER?!" +#endif + +#define bpf_htons(x) \ + (__builtin_constant_p(x) ? \ + __constant_htons(x) : __bpf_htons(x)) +#define bpf_ntohs(x) \ + (__builtin_constant_p(x) ? \ + __constant_ntohs(x) : __bpf_ntohs(x)) + +#endif |