Integrated libfdt

+ Added new common/ directory, into which code that should be shared
with init and kernel is to be added. Currently string.c and bytes.c.
Code in common/ should be marked with __weak, so as to allow the arch to
implement a better, more optimised version of the function if
possible/required.

+ Created include/apos/types.h with macros essentially providing the
libc limits.h and stdint.h. At the moment I use gcc/clang predefined
macros for most things.

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/libfdt_env.h b/lib/libfdt_env.h
new file mode 100644
index 0000000..166b558
--- /dev/null
+++ b/lib/libfdt_env.h
@@ -0,0 +1,17 @@
+#ifndef LIBFDT_ENV_H
+/* take over libfdt */
+#define LIBFDT_ENV_H
+
+#include <apos/types.h>
+#include <apos/string.h>
+
+typedef int16_t fdt16_t;
+typedef int32_t fdt32_t;
+typedef int64_t fdt64_t;
+
+#define fdt32_to_cpu(x) be32_to_cpu(x)
+#define cpu_to_fdt32(x) cpu_to_be32(x)
+#define fdt64_to_cpu(x) be64_to_cpu(x)
+#define cpu_to_fdt64(x) cpu_to_be64(x)
+
+#endif /* LIBFDT_ENV_H */