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, 207 insertions, 1 deletions

diff --git a/include/apos/types.h b/include/apos/types.h
index 2e30080..04afd4c 100644
--- a/include/apos/types.h
+++ b/include/apos/types.h
@@ -1,4 +1,210 @@
-#ifdef APOS_TYPES_H
+#ifndef APOS_TYPES_H
 #define APOS_TYPES_H
 
+typedef _Bool	bool;
+#define true	1
+#define false	0
+
+typedef __SIZE_TYPE__		size_t;
+typedef __PTRDIFF_TYPE__	ptrdiff_t;
+typedef __WCHAR_TYPE__		wchar_t;
+typedef __WINT_TYPE__		wint_t;
+typedef __INTMAX_TYPE__		intmax_t;
+typedef __UINTMAX_TYPE__	uintmax_t;
+typedef __SIG_ATOMIC_TYPE__	sig_atomic_t;
+typedef __INT8_TYPE__		int8_t;
+typedef __INT16_TYPE__		int16_t;
+typedef __INT32_TYPE__		int32_t;
+typedef __INT64_TYPE__		int64_t;
+typedef __UINT8_TYPE__		uint8_t;
+typedef __UINT16_TYPE__		uint16_t;
+typedef __UINT32_TYPE__		uint32_t;
+typedef __UINT64_TYPE__		uint64_t;
+typedef __INT_LEAST8_TYPE__	int_least8_t;
+typedef __INT_LEAST16_TYPE__	int_least16_t;
+typedef __INT_LEAST32_TYPE__	int_least32_t;
+typedef __INT_LEAST64_TYPE__	int_least64_t;
+typedef __UINT_LEAST8_TYPE__	uint_least8_t;
+typedef __UINT_LEAST16_TYPE__	uint_least16_t;
+typedef __UINT_LEAST32_TYPE__	uint_least32_t;
+typedef __UINT_LEAST64_TYPE__	uint_least64_t;
+typedef __INT_FAST8_TYPE__	int_fast8_t;
+typedef __INT_FAST16_TYPE__	int_fast16_t;
+typedef __INT_FAST32_TYPE__	int_fast32_t;
+typedef __INT_FAST64_TYPE__	int_fast64_t;
+typedef __UINT_FAST8_TYPE__	uint_fast8_t;
+typedef __UINT_FAST16_TYPE__	uint_fast16_t;
+typedef __UINT_FAST32_TYPE__	uint_fast32_t;
+typedef __UINT_FAST64_TYPE__	uint_fast64_t;
+typedef __INTPTR_TYPE__		intptr_t;
+typedef __UINTPTR_TYPE__	uintptr_t;
+
+#define INT8_C		__INT8_C
+#define INT16_C		__INT16_C
+#define INT32_C		__INT32_C
+#define INT64_C		__INT64_C
+#define UINT8_C		__UINT8_C
+#define UINT16_C	__UINT16_C
+#define UINT32_C	__UINT32_C
+#define UINT64_C	__UINT64_C
+#define INTMAX_C	__INTMAX_C
+#define UINTMAX_C	__UINTMAX_C
+
+#define CHAR_BIT	__CHAR_BIT__
+
+#define SCHAR_MAX	__SCHAR_MAX__
+#define SCHAR_MIN	(-__SCHAR_MAX - 1)
+#define UCHAR_MAX	(2 * __SCHAR_MAX__ - 1)
+
+#ifdef __CHAR_UNSIGNED__
+#define CHAR_MIN	0
+#define CHAR_MAX	UCHAR_MAX
+#else
+#define CHAR_MIN	SCHAR_MIN
+#define CHAR_MAX	SCHAR_MAX
+#endif
+
+/* probably not necessary? */
+#define MB_LEN_MAX	16
+
+#define SHRT_MAX	__SHRT_MAX__
+#define SHRT_MIN	(-__SHRT_MAX - 1)
+#define USHRT_MAX	(2 * __SHRT_MAX + 1)
+
+#define INT_MAX		__INT_MAX__
+#define INT_MIN		(-__INT_MAX__ - 1)
+#define UINT_MAX	(2 * __INT_MAX__ + 1)
+
+#define LONG_MAX	__LONG__MAX__
+#define LONG_MIN	(-__LONG_MAX__ - 1)
+#define ULONG_MAX	(2 * __INT_MAX__ + 1)
+
+#define LLONG_MAX	__LONG_LONG_MAX__
+#define LLONG_MIN	(-__LONG_LONG_MAX__ - 1)
+#define ULLONG_MAX	(2 * __LONG_LONG_MAX__ + 1)
+
+#define INT8_MAX	__INT8_MAX__
+#define INT8_MIN	(-__INT8_MAX__ - 1)
+#define UINT8_MAX	__UINT8_MAX__
+
+#define INT16_MAX	__INT16_MAX__
+#define INT16_MIN	(-__INT16_MAX__ - 1)
+#define UINT16_MAX	__UINT16_MAX__
+
+#define INT32_MAX	__INT32_MAX__
+#define INT32_MIN	(-__INT32_MAX__ - 1)
+#define UINT32_MAX	__UINT32_MAX__
+
+#define INT64_MAX	__INT64_MAX__
+#define INT64_MIN	(-__INT64_MAX__ - 1)
+#define UINT64_MAX	__UINT64_MAX__
+
+#define INT_LEAST8_MAX	__INT_LEAST8_MAX__
+#define INT_LEAST8_MIN	(-__INT_LEAST8_MAX__ - 1)
+#define UINT_LEAST8_MAX __UINT_LEAST8_MAX__
+
+#define INT_LEAST16_MAX	__INT_LEAST16_MAX__
+#define INT_LEAST16_MIN	(-__INT_LEAST16_MAX__ - 1)
+#define UINT_LEAST16_MAX	__UINT_LEAST16_MAX__
+
+#define INT_LEAST32_MAX	__INT_LEAST32_MAX__
+#define INT_LEAST32_MIN	(-__INT_LEAST32_MAX__ - 1)
+#define UINT_LEAST32_MAX	__UINT_LEAST32_MAX__
+
+#define INT_LEAST64_MAX	__INT_LEAST64_MAX__
+#define INT_LEAST64_MIN	(-__INT_LEAST64_MAX__ - 1)
+#define UINT_LEAST64_MAX	__UINT_LEAST64_MAX__
+
+#define INT_FAST8_MAX	__INT_FAST8_MAX__
+#define INT_FAST8_MIN	(-__INT_FAST8_MAX__ - 1)
+#define UINT_FAST8_MAX __UINT_FAST8_MAX__
+
+#define INT_FAST16_MAX	__INT_FAST16_MAX__
+#define INT_FAST16_MIN	(-__INT_FAST16_MAX__ - 1)
+#define UINT_FAST16_MAX	__UINT_FAST16_MAX__
+
+#define INT_FAST32_MAX	__INT_FAST32_MAX__
+#define INT_FAST32_MIN	(-__INT_FAST32_MAX__ - 1)
+#define UINT_FAST32_MAX __UINT_FAST32_MAX__
+
+#define INT_FAST64_MAX	__INT_FAST64_MAX__
+#define INT_FAST64_MIN	(-__INT_FAST64_MAX__ - 1)
+#define UINT_FAST64_MAX	__UINT_FAST64_MAX__
+
+#define INTPTR_MAX	__INTPTR_MAX__
+#define INTPTR_MIN	(-__INTPTR_MAX__ - 1)
+#define UINTPTR_MAX	__UINTPTR_MAX__
+
+#define INTMAX_MAX	__INTMAX_MAX__
+#define INTMAX_MIN	(-__INTMAX_MAX__ - 1)
+#define UINTMAX_MAX	__UINTMAX_MAX__
+
+#define INT8_WIDTH	8
+#define INT16_WIDTH	16
+#define INT32_WIDTH	32
+#define INT64_WIDTH	64
+#define UINT8_WIDTH	8
+#define UINT16_WIDTH	16
+#define UINT32_WIDTH	32
+#define UINT64_WIDTH	64
+
+#define INT_FAST8_WIDTH		__INT_FAST8_WIDTH__
+#define INT_FAST16_WIDTH	__INT_FAST16_WIDTH__
+#define INT_FAST32_WIDTH	__INT_FAST32_WIDTH__
+#define INT_FAST64_WIDTH	__INT_FAST64_WIDTH__
+#define UINT_FAST8_WIDTH	__INT_FAST8_WIDTH__
+#define UINT_FAST16_WIDTH	__INT_FAST16_WIDTH__
+#define UINT_FAST32_WIDTH	__INT_FAST32_WIDTH__
+#define UINT_FAST64_WIDTH	__INT_FAST64_WIDTH__
+
+#define INT_LEAST8_WIDTH	__INT_LEAST8_WIDTH__
+#define INT_LEAST16_WIDTH	__INT_LEAST16_WIDTH__
+#define INT_LEAST32_WIDTH	__INT_LEAST32_WIDTH__
+#define INT_LEAST64_WIDTH	__INT_LEAST64_WIDTH__
+#define UINT_LEAST8_WIDTH	__INT_LEAST8_WIDTH__
+#define UINT_LEAST16_WIDTH	__INT_LEAST16_WIDTH__
+#define UINT_LEAST32_WIDTH	__INT_LEAST32_WIDTH__
+#define UINT_LEAST64_WIDTH	__INT_LEAST64_WIDTH__
+
+#define INTPTR_WIDTH		__INTPTR_WIDTH__
+#define INTMAX_WIDTH		__INTMAX_WIDTH__
+#define UINTPTR_WIDTH		__INTPTR_WIDTH__
+#define UINTMAX_WIDTH		__INTMAX_WIDTH__
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define be16_to_cpu(x) __builtin_bswap16(x)
+#define be32_to_cpu(x) __builtin_bswap32(x)
+#define be64_to_cpu(x) __builtin_bswap64(x)
+
+#define cpu_to_be16(x) __builtin_bswap16(x)
+#define cpu_to_be32(x) __builtin_bswap32(x)
+#define cpu_to_be64(x) __builtin_bswap64(x)
+
+#define le16_to_cpu(x) (x)
+#define le32_to_cpu(x) (x)
+#define le64_to_cpu(x) (x)
+
+#define cpu_to_le16(x) (x)
+#define cpu_to_le32(x) (x)
+#define cpu_to_le64(x) (x)
+#else
+#define be16_to_cpu(x) (x)
+#define be32_to_cpu(x) (x)
+#define be64_to_cpu(x) (x)
+
+#define cpu_to_be16(x) (x)
+#define cpu_to_be32(x) (x)
+#define cpu_to_be64(x) (x)
+
+#define le16_to_cpu(x) __builtin_bswap16(x)
+#define le32_to_cpu(x) __builtin_bswap32(x)
+#define le64_to_cpu(x) __builtin_bswap64(x)
+
+#define cpu_to_le16(x) __builtin_bswap16(x)
+#define cpu_to_le32(x) __builtin_bswap32(x)
+#define cpu_to_le64(x) __builtin_bswap64(x)
+#endif
+
+#define NULL 0
+
 #endif /* APOS_TYPES_H */