Add build system scaffolding and libc headers

1 files changed, 28 insertions, 0 deletions

diff --git a/include/endian.h b/include/endian.h
new file mode 100644
index 00000000..fd7d900f
--- /dev/null
+++ b/include/endian.h
@@ -0,0 +1,28 @@
+#ifndef __ENDIAN_H
+#define __ENDIAN_H
+
+#define BYTE_ORDER    __BYTE_ORDER__
+#define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
+#define BIG_ENDIAN    __ORDER_BIG_ENDIAN__
+
+typedef __UINT16_TYPE__ uint16_t;
+typedef __UINT32_TYPE__ uint32_t;
+typedef __UINT64_TYPE__ uint64_t;
+
+uint16_t be16toh(uint16_t);
+uint32_t be32toh(uint32_t);
+uint64_t be64toh(uint64_t);
+
+uint16_t htobe16(uint16_t);
+uint32_t htobe32(uint32_t);
+uint64_t htobe64(uint64_t);
+
+uint16_t htole16(uint16_t);
+uint32_t htole32(uint32_t);
+uint64_t htole64(uint64_t);
+
+uint16_t le16toh(uint16_t);
+uint32_t le32toh(uint32_t);
+uint64_t le64toh(uint64_t);
+
+#endif