From 5dfac4879ce5f34503ae7537eefd3fc48d6fa750 Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Wed, 25 Aug 2021 23:47:08 +0300
Subject: libfdt seems to work

At least as far as reading memory info, cool.

One issue I have is that .(ro)data is apparently accessed by absolute
addresses, so I need to know at which address the kernel is going to be
loaded. I would prefer completely position independent code, but if
that's not possible then eh.
---
 include/apos/link.lds.h |  8 --------
 include/apos/main.h     |  2 +-
 include/fdt.h           |  1 +
 include/libfdt.h        |  1 +
 include/libfdt_env.h    | 17 +++++++++++++++++
 5 files changed, 20 insertions(+), 9 deletions(-)
 delete mode 100644 include/apos/link.lds.h
 create mode 100644 include/fdt.h
 create mode 100644 include/libfdt.h
 create mode 100644 include/libfdt_env.h

(limited to 'include')

diff --git a/include/apos/link.lds.h b/include/apos/link.lds.h
deleted file mode 100644
index ddb1f65..0000000
--- a/include/apos/link.lds.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef APOS_LINK_LDS_H
-#define APOS_LINK_LDS_H
-
-#ifndef PM_KERN
-#define PM_KERN 0
-#endif
-
-#endif /* APOS_LINK_LDS_H */
diff --git a/include/apos/main.h b/include/apos/main.h
index 5292df7..15fff73 100644
--- a/include/apos/main.h
+++ b/include/apos/main.h
@@ -3,6 +3,6 @@
 
 #include <apos/attrs.h>
 
-#define __main __section(".text.start") __noinline
+#define __main __section(".kernel.start") __noinline
 
 #endif /* APOS_MAIN_H */
diff --git a/include/fdt.h b/include/fdt.h
new file mode 100644
index 0000000..9236a45
--- /dev/null
+++ b/include/fdt.h
@@ -0,0 +1 @@
+#include "../dtc/libfdt/fdt.h"
diff --git a/include/libfdt.h b/include/libfdt.h
new file mode 100644
index 0000000..65b3ca6
--- /dev/null
+++ b/include/libfdt.h
@@ -0,0 +1 @@
+#include "../dtc/libfdt/libfdt.h"
diff --git a/include/libfdt_env.h b/include/libfdt_env.h
new file mode 100644
index 0000000..166b558
--- /dev/null
+++ b/include/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 */
-- 
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