Initial commit

tools/include/linux/big_endian.h

@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_BYTEORDER_BIG_ENDIAN_H
+#define _LINUX_BYTEORDER_BIG_ENDIAN_H
+
+#ifndef __BIG_ENDIAN
+#define __BIG_ENDIAN 4321
+#endif
+#ifndef __BIG_ENDIAN_BITFIELD
+#define __BIG_ENDIAN_BITFIELD
+#endif
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/swab.h>
+
+#define __constant_htonl(x) ((__be32)(__u32)(x))
+#define __constant_ntohl(x) ((__u32)(__be32)(x))
+#define __constant_htons(x) ((__be16)(__u16)(x))
+#define __constant_ntohs(x) ((__u16)(__be16)(x))
+#define __constant_cpu_to_le64(x) ((__le64)___constant_swab64((x)))
+#define __constant_le64_to_cpu(x) ___constant_swab64((__u64)(__le64)(x))
+#define __constant_cpu_to_le32(x) ((__le32)___constant_swab32((x)))
+#define __constant_le32_to_cpu(x) ___constant_swab32((__u32)(__le32)(x))
+#define __constant_cpu_to_le16(x) ((__le16)___constant_swab16((x)))
+#define __constant_le16_to_cpu(x) ___constant_swab16((__u16)(__le16)(x))
+#define __constant_cpu_to_be64(x) ((__be64)(__u64)(x))
+#define __constant_be64_to_cpu(x) ((__u64)(__be64)(x))
+#define __constant_cpu_to_be32(x) ((__be32)(__u32)(x))
+#define __constant_be32_to_cpu(x) ((__u32)(__be32)(x))
+#define __constant_cpu_to_be16(x) ((__be16)(__u16)(x))
+#define __constant_be16_to_cpu(x) ((__u16)(__be16)(x))
+#define __cpu_to_le64(x) ((__le64)__swab64((x)))
+#define __le64_to_cpu(x) __swab64((__u64)(__le64)(x))
+#define __cpu_to_le32(x) ((__le32)__swab32((x)))
+#define __le32_to_cpu(x) __swab32((__u32)(__le32)(x))
+#define __cpu_to_le16(x) ((__le16)__swab16((x)))
+#define __le16_to_cpu(x) __swab16((__u16)(__le16)(x))
+#define __cpu_to_be64(x) ((__be64)(__u64)(x))
+#define __be64_to_cpu(x) ((__u64)(__be64)(x))
+#define __cpu_to_be32(x) ((__be32)(__u32)(x))
+#define __be32_to_cpu(x) ((__u32)(__be32)(x))
+#define __cpu_to_be16(x) ((__be16)(__u16)(x))
+#define __be16_to_cpu(x) ((__u16)(__be16)(x))
+
+static __always_inline __le64 __cpu_to_le64p(const __u64 *p)
+{
+	return (__le64)__swab64p(p);
+}
+static __always_inline __u64 __le64_to_cpup(const __le64 *p)
+{
+	return __swab64p((__u64 *)p);
+}
+static __always_inline __le32 __cpu_to_le32p(const __u32 *p)
+{
+	return (__le32)__swab32p(p);
+}
+static __always_inline __u32 __le32_to_cpup(const __le32 *p)
+{
+	return __swab32p((__u32 *)p);
+}
+static __always_inline __le16 __cpu_to_le16p(const __u16 *p)
+{
+	return (__le16)__swab16p(p);
+}
+static __always_inline __u16 __le16_to_cpup(const __le16 *p)
+{
+	return __swab16p((__u16 *)p);
+}
+static __always_inline __be64 __cpu_to_be64p(const __u64 *p)
+{
+	return (__be64)*p;
+}
+static __always_inline __u64 __be64_to_cpup(const __be64 *p)
+{
+	return (__u64)*p;
+}
+static __always_inline __be32 __cpu_to_be32p(const __u32 *p)
+{
+	return (__be32)*p;
+}
+static __always_inline __u32 __be32_to_cpup(const __be32 *p)
+{
+	return (__u32)*p;
+}
+static __always_inline __be16 __cpu_to_be16p(const __u16 *p)
+{
+	return (__be16)*p;
+}
+static __always_inline __u16 __be16_to_cpup(const __be16 *p)
+{
+	return (__u16)*p;
+}
+#define __cpu_to_le64s(x) __swab64s((x))
+#define __le64_to_cpus(x) __swab64s((x))
+#define __cpu_to_le32s(x) __swab32s((x))
+#define __le32_to_cpus(x) __swab32s((x))
+#define __cpu_to_le16s(x) __swab16s((x))
+#define __le16_to_cpus(x) __swab16s((x))
+#define __cpu_to_be64s(x) do { (void)(x); } while (0)
+#define __be64_to_cpus(x) do { (void)(x); } while (0)
+#define __cpu_to_be32s(x) do { (void)(x); } while (0)
+#define __be32_to_cpus(x) do { (void)(x); } while (0)
+#define __cpu_to_be16s(x) do { (void)(x); } while (0)
+#define __be16_to_cpus(x) do { (void)(x); } while (0)
+
+
+#endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */

tools/include/linux/errno.h

@@ -0,0 +1 @@
+#include <asm/errno.h>

tools/include/linux/little_endian.h

@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_BYTEORDER_LITTLE_ENDIAN_H
+#define _LINUX_BYTEORDER_LITTLE_ENDIAN_H
+
+#ifndef __LITTLE_ENDIAN
+#define __LITTLE_ENDIAN 1234
+#endif
+#ifndef __LITTLE_ENDIAN_BITFIELD
+#define __LITTLE_ENDIAN_BITFIELD
+#endif
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/swab.h>
+
+#define __constant_htonl(x) ((__be32)___constant_swab32((x)))
+#define __constant_ntohl(x) ___constant_swab32((__be32)(x))
+#define __constant_htons(x) ((__be16)___constant_swab16((x)))
+#define __constant_ntohs(x) ___constant_swab16((__be16)(x))
+#define __constant_cpu_to_le64(x) ((__le64)(__u64)(x))
+#define __constant_le64_to_cpu(x) ((__u64)(__le64)(x))
+#define __constant_cpu_to_le32(x) ((__le32)(__u32)(x))
+#define __constant_le32_to_cpu(x) ((__u32)(__le32)(x))
+#define __constant_cpu_to_le16(x) ((__le16)(__u16)(x))
+#define __constant_le16_to_cpu(x) ((__u16)(__le16)(x))
+#define __constant_cpu_to_be64(x) ((__be64)___constant_swab64((x)))
+#define __constant_be64_to_cpu(x) ___constant_swab64((__u64)(__be64)(x))
+#define __constant_cpu_to_be32(x) ((__be32)___constant_swab32((x)))
+#define __constant_be32_to_cpu(x) ___constant_swab32((__u32)(__be32)(x))
+#define __constant_cpu_to_be16(x) ((__be16)___constant_swab16((x)))
+#define __constant_be16_to_cpu(x) ___constant_swab16((__u16)(__be16)(x))
+#define __cpu_to_le64(x) ((__le64)(__u64)(x))
+#define __le64_to_cpu(x) ((__u64)(__le64)(x))
+#define __cpu_to_le32(x) ((__le32)(__u32)(x))
+#define __le32_to_cpu(x) ((__u32)(__le32)(x))
+#define __cpu_to_le16(x) ((__le16)(__u16)(x))
+#define __le16_to_cpu(x) ((__u16)(__le16)(x))
+#define __cpu_to_be64(x) ((__be64)__swab64((x)))
+#define __be64_to_cpu(x) __swab64((__u64)(__be64)(x))
+#define __cpu_to_be32(x) ((__be32)__swab32((x)))
+#define __be32_to_cpu(x) __swab32((__u32)(__be32)(x))
+#define __cpu_to_be16(x) ((__be16)__swab16((x)))
+#define __be16_to_cpu(x) __swab16((__u16)(__be16)(x))
+
+static __always_inline __le64 __cpu_to_le64p(const __u64 *p)
+{
+	return (__le64)*p;
+}
+static __always_inline __u64 __le64_to_cpup(const __le64 *p)
+{
+	return (__u64)*p;
+}
+static __always_inline __le32 __cpu_to_le32p(const __u32 *p)
+{
+	return (__le32)*p;
+}
+static __always_inline __u32 __le32_to_cpup(const __le32 *p)
+{
+	return (__u32)*p;
+}
+static __always_inline __le16 __cpu_to_le16p(const __u16 *p)
+{
+	return (__le16)*p;
+}
+static __always_inline __u16 __le16_to_cpup(const __le16 *p)
+{
+	return (__u16)*p;
+}
+static __always_inline __be64 __cpu_to_be64p(const __u64 *p)
+{
+	return (__be64)__swab64p(p);
+}
+static __always_inline __u64 __be64_to_cpup(const __be64 *p)
+{
+	return __swab64p((__u64 *)p);
+}
+static __always_inline __be32 __cpu_to_be32p(const __u32 *p)
+{
+	return (__be32)__swab32p(p);
+}
+static __always_inline __u32 __be32_to_cpup(const __be32 *p)
+{
+	return __swab32p((__u32 *)p);
+}
+static __always_inline __be16 __cpu_to_be16p(const __u16 *p)
+{
+	return (__be16)__swab16p(p);
+}
+static __always_inline __u16 __be16_to_cpup(const __be16 *p)
+{
+	return __swab16p((__u16 *)p);
+}
+#define __cpu_to_le64s(x) do { (void)(x); } while (0)
+#define __le64_to_cpus(x) do { (void)(x); } while (0)
+#define __cpu_to_le32s(x) do { (void)(x); } while (0)
+#define __le32_to_cpus(x) do { (void)(x); } while (0)
+#define __cpu_to_le16s(x) do { (void)(x); } while (0)
+#define __le16_to_cpus(x) do { (void)(x); } while (0)
+#define __cpu_to_be64s(x) __swab64s((x))
+#define __be64_to_cpus(x) __swab64s((x))
+#define __cpu_to_be32s(x) __swab32s((x))
+#define __be32_to_cpus(x) __swab32s((x))
+#define __cpu_to_be16s(x) __swab16s((x))
+#define __be16_to_cpus(x) __swab16s((x))
+
+
+#endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */

tools/include/linux/stddef.h

@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_STDDEF_H
+#define _UAPI_LINUX_STDDEF_H
+
+#ifndef __always_inline
+#define __always_inline inline
+#endif
+
+/**
+ * __struct_group() - Create a mirrored named and anonyomous struct
+ *
+ * @TAG: The tag name for the named sub-struct (usually empty)
+ * @NAME: The identifier name of the mirrored sub-struct
+ * @ATTRS: Any struct attributes (usually empty)
+ * @MEMBERS: The member declarations for the mirrored structs
+ *
+ * Used to create an anonymous union of two structs with identical layout
+ * and size: one anonymous and one named. The former's members can be used
+ * normally without sub-struct naming, and the latter can be used to
+ * reason about the start, end, and size of the group of struct members.
+ * The named struct can also be explicitly tagged for layer reuse, as well
+ * as both having struct attributes appended.
+ */
+#define __struct_group(TAG, NAME, ATTRS, MEMBERS...) \
+	union { \
+		struct { MEMBERS } ATTRS; \
+		struct TAG { MEMBERS } ATTRS NAME; \
+	} ATTRS
+
+#ifdef __cplusplus
+/* sizeof(struct{}) is 1 in C++, not 0, can't use C version of the macro. */
+#define __DECLARE_FLEX_ARRAY(T, member)	\
+	T member[0]
+#else
+/**
+ * __DECLARE_FLEX_ARRAY() - Declare a flexible array usable in a union
+ *
+ * @TYPE: The type of each flexible array element
+ * @NAME: The name of the flexible array member
+ *
+ * In order to have a flexible array member in a union or alone in a
+ * struct, it needs to be wrapped in an anonymous struct with at least 1
+ * named member, but that member can be empty.
+ */
+#define __DECLARE_FLEX_ARRAY(TYPE, NAME)	\
+	struct { \
+		struct { } __empty_ ## NAME; \
+		TYPE NAME[]; \
+	}
+#endif
+
+#ifndef __counted_by
+#define __counted_by(m)
+#endif
+
+#endif /* _UAPI_LINUX_STDDEF_H */

tools/include/linux/swab.h

@@ -0,0 +1,305 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_SWAB_H
+#define _LINUX_SWAB_H
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <asm/bitsperlong.h>
+#include <asm/swab.h>
+
+/*
+ * casts are necessary for constants, because we never know how for sure
+ * how U/UL/ULL map to __u16, __u32, __u64. At least not in a portable way.
+ */
+#define ___constant_swab16(x) ((__u16)(				\
+	(((__u16)(x) & (__u16)0x00ffU) << 8) |			\
+	(((__u16)(x) & (__u16)0xff00U) >> 8)))
+
+#define ___constant_swab32(x) ((__u32)(				\
+	(((__u32)(x) & (__u32)0x000000ffUL) << 24) |		\
+	(((__u32)(x) & (__u32)0x0000ff00UL) <<  8) |		\
+	(((__u32)(x) & (__u32)0x00ff0000UL) >>  8) |		\
+	(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
+
+#define ___constant_swab64(x) ((__u64)(				\
+	(((__u64)(x) & (__u64)0x00000000000000ffULL) << 56) |	\
+	(((__u64)(x) & (__u64)0x000000000000ff00ULL) << 40) |	\
+	(((__u64)(x) & (__u64)0x0000000000ff0000ULL) << 24) |	\
+	(((__u64)(x) & (__u64)0x00000000ff000000ULL) <<  8) |	\
+	(((__u64)(x) & (__u64)0x000000ff00000000ULL) >>  8) |	\
+	(((__u64)(x) & (__u64)0x0000ff0000000000ULL) >> 24) |	\
+	(((__u64)(x) & (__u64)0x00ff000000000000ULL) >> 40) |	\
+	(((__u64)(x) & (__u64)0xff00000000000000ULL) >> 56)))
+
+#define ___constant_swahw32(x) ((__u32)(			\
+	(((__u32)(x) & (__u32)0x0000ffffUL) << 16) |		\
+	(((__u32)(x) & (__u32)0xffff0000UL) >> 16)))
+
+#define ___constant_swahb32(x) ((__u32)(			\
+	(((__u32)(x) & (__u32)0x00ff00ffUL) << 8) |		\
+	(((__u32)(x) & (__u32)0xff00ff00UL) >> 8)))
+
+/*
+ * Implement the following as inlines, but define the interface using
+ * macros to allow constant folding when possible:
+ * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
+ */
+
+static __inline__  __u16 __fswab16(__u16 val)
+{
+#if defined (__arch_swab16)
+	return __arch_swab16(val);
+#else
+	return ___constant_swab16(val);
+#endif
+}
+
+static __inline__  __u32 __fswab32(__u32 val)
+{
+#if defined(__arch_swab32)
+	return __arch_swab32(val);
+#else
+	return ___constant_swab32(val);
+#endif
+}
+
+static __inline__  __u64 __fswab64(__u64 val)
+{
+#if defined (__arch_swab64)
+	return __arch_swab64(val);
+#elif defined(__SWAB_64_THRU_32__)
+	__u32 h = val >> 32;
+	__u32 l = val & ((1ULL << 32) - 1);
+	return (((__u64)__fswab32(l)) << 32) | ((__u64)(__fswab32(h)));
+#else
+	return ___constant_swab64(val);
+#endif
+}
+
+static __inline__  __u32 __fswahw32(__u32 val)
+{
+#ifdef __arch_swahw32
+	return __arch_swahw32(val);
+#else
+	return ___constant_swahw32(val);
+#endif
+}
+
+static __inline__  __u32 __fswahb32(__u32 val)
+{
+#ifdef __arch_swahb32
+	return __arch_swahb32(val);
+#else
+	return ___constant_swahb32(val);
+#endif
+}
+
+/**
+ * __swab16 - return a byteswapped 16-bit value
+ * @x: value to byteswap
+ */
+#ifdef __HAVE_BUILTIN_BSWAP16__
+#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
+#else
+#define __swab16(x)				\
+	(__u16)(__builtin_constant_p(x) ?	\
+	___constant_swab16(x) :			\
+	__fswab16(x))
+#endif
+
+/**
+ * __swab32 - return a byteswapped 32-bit value
+ * @x: value to byteswap
+ */
+#ifdef __HAVE_BUILTIN_BSWAP32__
+#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
+#else
+#define __swab32(x)				\
+	(__u32)(__builtin_constant_p(x) ?	\
+	___constant_swab32(x) :			\
+	__fswab32(x))
+#endif
+
+/**
+ * __swab64 - return a byteswapped 64-bit value
+ * @x: value to byteswap
+ */
+#ifdef __HAVE_BUILTIN_BSWAP64__
+#define __swab64(x) (__u64)__builtin_bswap64((__u64)(x))
+#else
+#define __swab64(x)				\
+	(__u64)(__builtin_constant_p(x) ?	\
+	___constant_swab64(x) :			\
+	__fswab64(x))
+#endif
+
+static __always_inline unsigned long __swab(const unsigned long y)
+{
+#if __BITS_PER_LONG == 64
+	return __swab64(y);
+#else /* __BITS_PER_LONG == 32 */
+	return __swab32(y);
+#endif
+}
+
+/**
+ * __swahw32 - return a word-swapped 32-bit value
+ * @x: value to wordswap
+ *
+ * __swahw32(0x12340000) is 0x00001234
+ */
+#define __swahw32(x)				\
+	(__builtin_constant_p((__u32)(x)) ?	\
+	___constant_swahw32(x) :		\
+	__fswahw32(x))
+
+/**
+ * __swahb32 - return a high and low byte-swapped 32-bit value
+ * @x: value to byteswap
+ *
+ * __swahb32(0x12345678) is 0x34127856
+ */
+#define __swahb32(x)				\
+	(__builtin_constant_p((__u32)(x)) ?	\
+	___constant_swahb32(x) :		\
+	__fswahb32(x))
+
+/**
+ * __swab16p - return a byteswapped 16-bit value from a pointer
+ * @p: pointer to a naturally-aligned 16-bit value
+ */
+static __always_inline __u16 __swab16p(const __u16 *p)
+{
+#ifdef __arch_swab16p
+	return __arch_swab16p(p);
+#else
+	return __swab16(*p);
+#endif
+}
+
+/**
+ * __swab32p - return a byteswapped 32-bit value from a pointer
+ * @p: pointer to a naturally-aligned 32-bit value
+ */
+static __always_inline __u32 __swab32p(const __u32 *p)
+{
+#ifdef __arch_swab32p
+	return __arch_swab32p(p);
+#else
+	return __swab32(*p);
+#endif
+}
+
+/**
+ * __swab64p - return a byteswapped 64-bit value from a pointer
+ * @p: pointer to a naturally-aligned 64-bit value
+ */
+static __always_inline __u64 __swab64p(const __u64 *p)
+{
+#ifdef __arch_swab64p
+	return __arch_swab64p(p);
+#else
+	return __swab64(*p);
+#endif
+}
+
+/**
+ * __swahw32p - return a wordswapped 32-bit value from a pointer
+ * @p: pointer to a naturally-aligned 32-bit value
+ *
+ * See __swahw32() for details of wordswapping.
+ */
+static __inline__ __u32 __swahw32p(const __u32 *p)
+{
+#ifdef __arch_swahw32p
+	return __arch_swahw32p(p);
+#else
+	return __swahw32(*p);
+#endif
+}
+
+/**
+ * __swahb32p - return a high and low byteswapped 32-bit value from a pointer
+ * @p: pointer to a naturally-aligned 32-bit value
+ *
+ * See __swahb32() for details of high/low byteswapping.
+ */
+static __inline__ __u32 __swahb32p(const __u32 *p)
+{
+#ifdef __arch_swahb32p
+	return __arch_swahb32p(p);
+#else
+	return __swahb32(*p);
+#endif
+}
+
+/**
+ * __swab16s - byteswap a 16-bit value in-place
+ * @p: pointer to a naturally-aligned 16-bit value
+ */
+static __inline__ void __swab16s(__u16 *p)
+{
+#ifdef __arch_swab16s
+	__arch_swab16s(p);
+#else
+	*p = __swab16p(p);
+#endif
+}
+/**
+ * __swab32s - byteswap a 32-bit value in-place
+ * @p: pointer to a naturally-aligned 32-bit value
+ */
+static __always_inline void __swab32s(__u32 *p)
+{
+#ifdef __arch_swab32s
+	__arch_swab32s(p);
+#else
+	*p = __swab32p(p);
+#endif
+}
+
+/**
+ * __swab64s - byteswap a 64-bit value in-place
+ * @p: pointer to a naturally-aligned 64-bit value
+ */
+static __always_inline void __swab64s(__u64 *p)
+{
+#ifdef __arch_swab64s
+	__arch_swab64s(p);
+#else
+	*p = __swab64p(p);
+#endif
+}
+
+/**
+ * __swahw32s - wordswap a 32-bit value in-place
+ * @p: pointer to a naturally-aligned 32-bit value
+ *
+ * See __swahw32() for details of wordswapping
+ */
+static __inline__ void __swahw32s(__u32 *p)
+{
+#ifdef __arch_swahw32s
+	__arch_swahw32s(p);
+#else
+	*p = __swahw32p(p);
+#endif
+}
+
+/**
+ * __swahb32s - high and low byteswap a 32-bit value in-place
+ * @p: pointer to a naturally-aligned 32-bit value
+ *
+ * See __swahb32() for details of high and low byte swapping
+ */
+static __inline__ void __swahb32s(__u32 *p)
+{
+#ifdef __arch_swahb32s
+	__arch_swahb32s(p);
+#else
+	*p = __swahb32p(p);
+#endif
+}
+
+
+#endif /* _LINUX_SWAB_H */