Add build system scaffolding and libc headers

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/libc/endian/be16toh.c b/lib/libc/endian/be16toh.c
new file mode 100644
index 00000000..40793f93
--- /dev/null
+++ b/lib/libc/endian/be16toh.c
@@ -0,0 +1,10 @@
+#include <endian.h>
+
+uint16_t be16toh(uint16_t big_endian_16bits)
+{
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	return __builtin_bswap16(big_endian_16bits);
+#else
+	return big_endian_16bits;
+#endif
+}