X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FInclude%2FBase.h;h=5b1f418d1af4d9c9c0d356d718584c0119751e0f;hp=4bc80c17c8459f36d41ff04855561fe0489465f0;hb=a89fa50ccf7a29405e3d24c49625dbd70cdba9fa;hpb=3fef0f51d8600b2c5c9c8a53b8e26edf7484c0fd
diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h
index 4bc80c17c8..5b1f418d1a 100644
--- a/MdePkg/Include/Base.h
+++ b/MdePkg/Include/Base.h
@@ -1,5 +1,4 @@
/** @file
-
Root include file for Mde Package Base type modules
This is the include file for any module of type base. Base modules only use
@@ -7,11 +6,12 @@
environment. There are a set of base libraries in the Mde Package that can
be used to implement base modules.
-Copyright (c) 2006 - 2008, Intel Corporation
+Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved
+Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
+http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
@@ -27,6 +27,87 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
//
#include
+//
+// Verify that ProcessorBind.h produced UEFI Data Types that are compliant with
+// Section 2.3.1 of the UEFI 2.3 Specification. Generates a divide by zero
+// error or a zero size array declaration in the preprocessor if the size is
+// incorrect. These are declared as "extern" so the space for these arrays will
+// not be in the modules.
+//
+extern UINT8 _VerifySizeOfBoolean [(sizeof(BOOLEAN) == 1) / (sizeof(BOOLEAN) == 1)];
+extern UINT8 _VerifySizeOfInt8 [(sizeof(INT8) == 1) / (sizeof(INT8) == 1)];
+extern UINT8 _VerifySizeOfUint8 [(sizeof(UINT8) == 1) / (sizeof(UINT8) == 1)];
+extern UINT8 _VerifySizeOfInt16 [(sizeof(INT16) == 2) / (sizeof(INT16) == 2)];
+extern UINT8 _VerifySizeOfUint16 [(sizeof(UINT16) == 2) / (sizeof(UINT16) == 2)];
+extern UINT8 _VerifySizeOfInt32 [(sizeof(INT32) == 4) / (sizeof(INT32) == 4)];
+extern UINT8 _VerifySizeOfUint32 [(sizeof(UINT32) == 4) / (sizeof(UINT32) == 4)];
+extern UINT8 _VerifySizeOfInt64 [(sizeof(INT64) == 8) / (sizeof(INT64) == 8)];
+extern UINT8 _VerifySizeOfUint64 [(sizeof(UINT64) == 8) / (sizeof(UINT64) == 8)];
+extern UINT8 _VerifySizeOfChar8 [(sizeof(CHAR8) == 1) / (sizeof(CHAR8) == 1)];
+extern UINT8 _VerifySizeOfChar16 [(sizeof(CHAR16) == 2) / (sizeof(CHAR16) == 2)];
+
+//
+// The Microsoft* C compiler can removed references to unreferenced data items
+// if the /OPT:REF linker option is used. We defined a macro as this is a
+// a non standard extension
+//
+#if defined(_MSC_EXTENSIONS) && !defined (MDE_CPU_EBC)
+ ///
+ /// Remove global variable from the linked image if there are no references to
+ /// it after all compiler and linker optimizations have been performed.
+ ///
+ ///
+ #define GLOBAL_REMOVE_IF_UNREFERENCED __declspec(selectany)
+#else
+ ///
+ /// Remove the global variable from the linked image if there are no references
+ /// to it after all compiler and linker optimizations have been performed.
+ ///
+ ///
+ #define GLOBAL_REMOVE_IF_UNREFERENCED
+#endif
+
+//
+// For symbol name in GNU assembly code, an extra "_" is necessary
+//
+#if defined(__GNUC__)
+ ///
+ /// Private worker functions for ASM_PFX()
+ ///
+ #define _CONCATENATE(a, b) __CONCATENATE(a, b)
+ #define __CONCATENATE(a, b) a ## b
+
+ ///
+ /// The __USER_LABEL_PREFIX__ macro predefined by GNUC represents the prefix
+ /// on symbols in assembly language.
+ ///
+ #define ASM_PFX(name) _CONCATENATE (__USER_LABEL_PREFIX__, name)
+#endif
+
+#if __APPLE__
+ //
+ // Apple extension that is used by the linker to optimize code size
+ // with assembly functions. Put at the end of your .S files
+ //
+ #define ASM_FUNCTION_REMOVE_IF_UNREFERENCED .subsections_via_symbols
+#else
+ #define ASM_FUNCTION_REMOVE_IF_UNREFERENCED
+#endif
+
+#ifdef __CC_ARM
+ //
+ // Older RVCT ARM compilers don't fully support #pragma pack and require __packed
+ // as a prefix for the structure.
+ //
+ #define PACKED __packed
+#else
+ #define PACKED
+#endif
+
+///
+/// 128 bit buffer containing a unique identifier value.
+/// Unless otherwise specified, aligned on a 64 bit boundary.
+///
typedef struct {
UINT32 Data1;
UINT16 Data2;
@@ -34,57 +115,86 @@ typedef struct {
UINT8 Data4[8];
} GUID;
+//
+// 8-bytes unsigned value that represents a physical system address.
+//
typedef UINT64 PHYSICAL_ADDRESS;
///
-/// LIST_ENTRY definition
+/// LIST_ENTRY structure definition.
///
typedef struct _LIST_ENTRY LIST_ENTRY;
+///
+/// _LIST_ENTRY structure definition.
+///
struct _LIST_ENTRY {
LIST_ENTRY *ForwardLink;
LIST_ENTRY *BackLink;
};
//
-// Modifiers to absract standard types to aid in debug of problems
+// Modifiers to abstract standard types to aid in debug of problems
//
+
+///
+/// Datum is read-only.
+///
#define CONST const
+
+///
+/// Datum is scoped to the current file or function.
+///
#define STATIC static
+
+///
+/// Undeclared type.
+///
#define VOID void
//
// Modifiers for Data Types used to self document code.
// This concept is borrowed for UEFI specification.
//
-#ifndef IN
-//
-// Some other envirnments use this construct, so #ifndef to prevent
-// mulitple definition.
-//
+
+///
+/// Datum is passed to the function.
+///
#define IN
+
+///
+/// Datum is returned from the function.
+///
#define OUT
+
+///
+/// Passing the datum to the function is optional, and a NULL
+/// is passed if the value is not supplied.
+///
#define OPTIONAL
-#endif
-//
-// Constants. They may exist in other build structures, so #ifndef them.
-//
-#ifndef TRUE
//
// UEFI specification claims 1 and 0. We are concerned about the
// complier portability so we did it this way.
//
+
+///
+/// Boolean true value. UEFI Specification defines this value to be 1,
+/// but this form is more portable.
+///
#define TRUE ((BOOLEAN)(1==1))
-#endif
-#ifndef FALSE
+///
+/// Boolean false value. UEFI Specification defines this value to be 0,
+/// but this form is more portable.
+///
#define FALSE ((BOOLEAN)(0==1))
-#endif
-#ifndef NULL
+///
+/// NULL pointer (VOID *)
+///
#define NULL ((VOID *) 0)
-#endif
+
#define BIT0 0x00000001
#define BIT1 0x00000002
@@ -118,49 +228,159 @@ struct _LIST_ENTRY {
#define BIT29 0x20000000
#define BIT30 0x40000000
#define BIT31 0x80000000
-#define BIT32 0x0000000100000000UL
-#define BIT33 0x0000000200000000UL
-#define BIT34 0x0000000400000000UL
-#define BIT35 0x0000000800000000UL
-#define BIT36 0x0000001000000000UL
-#define BIT37 0x0000002000000000UL
-#define BIT38 0x0000004000000000UL
-#define BIT39 0x0000008000000000UL
-#define BIT40 0x0000010000000000UL
-#define BIT41 0x0000020000000000UL
-#define BIT42 0x0000040000000000UL
-#define BIT43 0x0000080000000000UL
-#define BIT44 0x0000100000000000UL
-#define BIT45 0x0000200000000000UL
-#define BIT46 0x0000400000000000UL
-#define BIT47 0x0000800000000000UL
-#define BIT48 0x0001000000000000UL
-#define BIT49 0x0002000000000000UL
-#define BIT50 0x0004000000000000UL
-#define BIT51 0x0008000000000000UL
-#define BIT52 0x0010000000000000UL
-#define BIT53 0x0020000000000000UL
-#define BIT54 0x0040000000000000UL
-#define BIT55 0x0080000000000000UL
-#define BIT56 0x0100000000000000UL
-#define BIT57 0x0200000000000000UL
-#define BIT58 0x0400000000000000UL
-#define BIT59 0x0800000000000000UL
-#define BIT60 0x1000000000000000UL
-#define BIT61 0x2000000000000000UL
-#define BIT62 0x4000000000000000UL
-#define BIT63 0x8000000000000000UL
+#define BIT32 0x0000000100000000ULL
+#define BIT33 0x0000000200000000ULL
+#define BIT34 0x0000000400000000ULL
+#define BIT35 0x0000000800000000ULL
+#define BIT36 0x0000001000000000ULL
+#define BIT37 0x0000002000000000ULL
+#define BIT38 0x0000004000000000ULL
+#define BIT39 0x0000008000000000ULL
+#define BIT40 0x0000010000000000ULL
+#define BIT41 0x0000020000000000ULL
+#define BIT42 0x0000040000000000ULL
+#define BIT43 0x0000080000000000ULL
+#define BIT44 0x0000100000000000ULL
+#define BIT45 0x0000200000000000ULL
+#define BIT46 0x0000400000000000ULL
+#define BIT47 0x0000800000000000ULL
+#define BIT48 0x0001000000000000ULL
+#define BIT49 0x0002000000000000ULL
+#define BIT50 0x0004000000000000ULL
+#define BIT51 0x0008000000000000ULL
+#define BIT52 0x0010000000000000ULL
+#define BIT53 0x0020000000000000ULL
+#define BIT54 0x0040000000000000ULL
+#define BIT55 0x0080000000000000ULL
+#define BIT56 0x0100000000000000ULL
+#define BIT57 0x0200000000000000ULL
+#define BIT58 0x0400000000000000ULL
+#define BIT59 0x0800000000000000ULL
+#define BIT60 0x1000000000000000ULL
+#define BIT61 0x2000000000000000ULL
+#define BIT62 0x4000000000000000ULL
+#define BIT63 0x8000000000000000ULL
+
+#define SIZE_1KB 0x00000400
+#define SIZE_2KB 0x00000800
+#define SIZE_4KB 0x00001000
+#define SIZE_8KB 0x00002000
+#define SIZE_16KB 0x00004000
+#define SIZE_32KB 0x00008000
+#define SIZE_64KB 0x00010000
+#define SIZE_128KB 0x00020000
+#define SIZE_256KB 0x00040000
+#define SIZE_512KB 0x00080000
+#define SIZE_1MB 0x00100000
+#define SIZE_2MB 0x00200000
+#define SIZE_4MB 0x00400000
+#define SIZE_8MB 0x00800000
+#define SIZE_16MB 0x01000000
+#define SIZE_32MB 0x02000000
+#define SIZE_64MB 0x04000000
+#define SIZE_128MB 0x08000000
+#define SIZE_256MB 0x10000000
+#define SIZE_512MB 0x20000000
+#define SIZE_1GB 0x40000000
+#define SIZE_2GB 0x80000000
+#define SIZE_4GB 0x0000000100000000ULL
+#define SIZE_8GB 0x0000000200000000ULL
+#define SIZE_16GB 0x0000000400000000ULL
+#define SIZE_32GB 0x0000000800000000ULL
+#define SIZE_64GB 0x0000001000000000ULL
+#define SIZE_128GB 0x0000002000000000ULL
+#define SIZE_256GB 0x0000004000000000ULL
+#define SIZE_512GB 0x0000008000000000ULL
+#define SIZE_1TB 0x0000010000000000ULL
+#define SIZE_2TB 0x0000020000000000ULL
+#define SIZE_4TB 0x0000040000000000ULL
+#define SIZE_8TB 0x0000080000000000ULL
+#define SIZE_16TB 0x0000100000000000ULL
+#define SIZE_32TB 0x0000200000000000ULL
+#define SIZE_64TB 0x0000400000000000ULL
+#define SIZE_128TB 0x0000800000000000ULL
+#define SIZE_256TB 0x0001000000000000ULL
+#define SIZE_512TB 0x0002000000000000ULL
+#define SIZE_1PB 0x0004000000000000ULL
+#define SIZE_2PB 0x0008000000000000ULL
+#define SIZE_4PB 0x0010000000000000ULL
+#define SIZE_8PB 0x0020000000000000ULL
+#define SIZE_16PB 0x0040000000000000ULL
+#define SIZE_32PB 0x0080000000000000ULL
+#define SIZE_64PB 0x0100000000000000ULL
+#define SIZE_128PB 0x0200000000000000ULL
+#define SIZE_256PB 0x0400000000000000ULL
+#define SIZE_512PB 0x0800000000000000ULL
+#define SIZE_1EB 0x1000000000000000ULL
+#define SIZE_2EB 0x2000000000000000ULL
+#define SIZE_4EB 0x4000000000000000ULL
+#define SIZE_8EB 0x8000000000000000ULL
+
+#define BASE_1KB 0x00000400
+#define BASE_2KB 0x00000800
+#define BASE_4KB 0x00001000
+#define BASE_8KB 0x00002000
+#define BASE_16KB 0x00004000
+#define BASE_32KB 0x00008000
+#define BASE_64KB 0x00010000
+#define BASE_128KB 0x00020000
+#define BASE_256KB 0x00040000
+#define BASE_512KB 0x00080000
+#define BASE_1MB 0x00100000
+#define BASE_2MB 0x00200000
+#define BASE_4MB 0x00400000
+#define BASE_8MB 0x00800000
+#define BASE_16MB 0x01000000
+#define BASE_32MB 0x02000000
+#define BASE_64MB 0x04000000
+#define BASE_128MB 0x08000000
+#define BASE_256MB 0x10000000
+#define BASE_512MB 0x20000000
+#define BASE_1GB 0x40000000
+#define BASE_2GB 0x80000000
+#define BASE_4GB 0x0000000100000000ULL
+#define BASE_8GB 0x0000000200000000ULL
+#define BASE_16GB 0x0000000400000000ULL
+#define BASE_32GB 0x0000000800000000ULL
+#define BASE_64GB 0x0000001000000000ULL
+#define BASE_128GB 0x0000002000000000ULL
+#define BASE_256GB 0x0000004000000000ULL
+#define BASE_512GB 0x0000008000000000ULL
+#define BASE_1TB 0x0000010000000000ULL
+#define BASE_2TB 0x0000020000000000ULL
+#define BASE_4TB 0x0000040000000000ULL
+#define BASE_8TB 0x0000080000000000ULL
+#define BASE_16TB 0x0000100000000000ULL
+#define BASE_32TB 0x0000200000000000ULL
+#define BASE_64TB 0x0000400000000000ULL
+#define BASE_128TB 0x0000800000000000ULL
+#define BASE_256TB 0x0001000000000000ULL
+#define BASE_512TB 0x0002000000000000ULL
+#define BASE_1PB 0x0004000000000000ULL
+#define BASE_2PB 0x0008000000000000ULL
+#define BASE_4PB 0x0010000000000000ULL
+#define BASE_8PB 0x0020000000000000ULL
+#define BASE_16PB 0x0040000000000000ULL
+#define BASE_32PB 0x0080000000000000ULL
+#define BASE_64PB 0x0100000000000000ULL
+#define BASE_128PB 0x0200000000000000ULL
+#define BASE_256PB 0x0400000000000000ULL
+#define BASE_512PB 0x0800000000000000ULL
+#define BASE_1EB 0x1000000000000000ULL
+#define BASE_2EB 0x2000000000000000ULL
+#define BASE_4EB 0x4000000000000000ULL
+#define BASE_8EB 0x8000000000000000ULL
//
// Support for variable length argument lists using the ANSI standard.
//
-// Since we are using the ANSI standard we used the standard nameing and
-// did not folow the coding convention
+// Since we are using the ANSI standard we used the standard naming and
+// did not follow the coding convention
//
// VA_LIST - typedef for argument list.
// VA_START (VA_LIST Marker, argument before the ...) - Init Marker for use.
// VA_END (VA_LIST Marker) - Clear Marker
-// VA_ARG (VA_LIST Marker, var arg size) - Use Marker to get an argumnet from
+// VA_ARG (VA_LIST Marker, var arg size) - Use Marker to get an argument from
// the ... list. You must know the size and pass it in this macro.
//
// example:
@@ -191,116 +411,534 @@ struct _LIST_ENTRY {
// }
//
+/**
+ Return the size of argument that has been aligned to sizeof (UINTN).
+
+ @param n The parameter size to be aligned.
+
+ @return The aligned size.
+**/
#define _INT_SIZE_OF(n) ((sizeof (n) + sizeof (UINTN) - 1) &~(sizeof (UINTN) - 1))
+#if defined(__CC_ARM)
//
-// Also support coding convention rules for var arg macros
+// RVCT ARM variable argument list support.
//
-#ifndef VA_START
-
-typedef CHAR8 *VA_LIST;
-#define VA_START(ap, v) (ap = (VA_LIST) & (v) + _INT_SIZE_OF (v))
-#define VA_ARG(ap, t) (*(t *) ((ap += _INT_SIZE_OF (t)) - _INT_SIZE_OF (t)))
-#define VA_END(ap) (ap = (VA_LIST) 0)
+///
+/// Variable used to traverse the list of arguments. This type can vary by
+/// implementation and could be an array or structure.
+///
+#ifdef __APCS_ADSABI
+ typedef int *va_list[1];
+ #define VA_LIST va_list
+#else
+ typedef struct __va_list { void *__ap; } va_list;
+ #define VA_LIST va_list
#endif
+#define VA_START(Marker, Parameter) __va_start(Marker, Parameter)
+
+#define VA_ARG(Marker, TYPE) __va_arg(Marker, TYPE)
+
+#define VA_END(Marker) ((void)0)
+
+#elif defined(__GNUC__)
//
-// Macro that returns the byte offset of a field in a data structure.
+// Use GCC built-in macros for variable argument lists.
//
-#define OFFSET_OF(TYPE, Field) ((UINTN) &(((TYPE *)0)->Field))
///
-/// CONTAINING_RECORD - returns a pointer to the structure
-/// from one of it's elements.
+/// Variable used to traverse the list of arguments. This type can vary by
+/// implementation and could be an array or structure.
///
-#define _CR(Record, TYPE, Field) ((TYPE *) ((CHAR8 *) (Record) - (CHAR8 *) &(((TYPE *) 0)->Field)))
+typedef __builtin_va_list VA_LIST;
+#define VA_START(Marker, Parameter) __builtin_va_start (Marker, Parameter)
+
+#define VA_ARG(Marker, TYPE) ((sizeof (TYPE) < sizeof (UINTN)) ? (TYPE)(__builtin_va_arg (Marker, UINTN)) : (TYPE)(__builtin_va_arg (Marker, TYPE)))
+
+#define VA_END(Marker) __builtin_va_end (Marker)
+
+#else
///
-/// ALIGN_VALUE - aligns a value up to the next boundary of the given alignment.
+/// Variable used to traverse the list of arguments. This type can vary by
+/// implementation and could be an array or structure.
///
-#define ALIGN_VALUE(Value, Alignment) ((Value) + (((Alignment) - (Value)) & ((Alignment) - 1)))
+typedef CHAR8 *VA_LIST;
+
+/**
+ Retrieves a pointer to the beginning of a variable argument list, based on
+ the name of the parameter that immediately precedes the variable argument list.
+
+ This function initializes Marker to point to the beginning of the variable
+ argument list that immediately follows Parameter. The method for computing the
+ pointer to the next argument in the argument list is CPU-specific following the
+ EFIAPI ABI.
+
+ @param Marker The VA_LIST used to traverse the list of arguments.
+ @param Parameter The name of the parameter that immediately precedes
+ the variable argument list.
+
+ @return A pointer to the beginning of a variable argument list.
+
+**/
+#define VA_START(Marker, Parameter) (Marker = (VA_LIST) & (Parameter) + _INT_SIZE_OF (Parameter))
+
+/**
+ Returns an argument of a specified type from a variable argument list and updates
+ the pointer to the variable argument list to point to the next argument.
+
+ This function returns an argument of the type specified by TYPE from the beginning
+ of the variable argument list specified by Marker. Marker is then updated to point
+ to the next argument in the variable argument list. The method for computing the
+ pointer to the next argument in the argument list is CPU-specific following the EFIAPI ABI.
+
+ @param Marker VA_LIST used to traverse the list of arguments.
+ @param TYPE The type of argument to retrieve from the beginning
+ of the variable argument list.
+
+ @return An argument of the type specified by TYPE.
+
+**/
+#define VA_ARG(Marker, TYPE) (*(TYPE *) ((Marker += _INT_SIZE_OF (TYPE)) - _INT_SIZE_OF (TYPE)))
+
+/**
+ Terminates the use of a variable argument list.
+
+ This function initializes Marker so it can no longer be used with VA_ARG().
+ After this macro is used, the only way to access the variable argument list is
+ by using VA_START() again.
+
+ @param Marker VA_LIST used to traverse the list of arguments.
+
+**/
+#define VA_END(Marker) (Marker = (VA_LIST) 0)
+
+#endif
///
-/// ALIGN_POINTER - aligns a pointer to the lowest boundry
+/// Pointer to the start of a variable argument list stored in a memory buffer. Same as UINT8 *.
///
+typedef UINTN *BASE_LIST;
+
+/**
+ Returns the size of a data type in sizeof(UINTN) units rounded up to the nearest UINTN boundary.
+
+ @param TYPE The date type to determine the size of.
+
+ @return The size of TYPE in sizeof (UINTN) units rounded up to the nearest UINTN boundary.
+**/
+#define _BASE_INT_SIZE_OF(TYPE) ((sizeof (TYPE) + sizeof (UINTN) - 1) / sizeof (UINTN))
+
+/**
+ Returns an argument of a specified type from a variable argument list and updates
+ the pointer to the variable argument list to point to the next argument.
+
+ This function returns an argument of the type specified by TYPE from the beginning
+ of the variable argument list specified by Marker. Marker is then updated to point
+ to the next argument in the variable argument list. The method for computing the
+ pointer to the next argument in the argument list is CPU specific following the EFIAPI ABI.
+
+ @param Marker The pointer to the beginning of a variable argument list.
+ @param TYPE The type of argument to retrieve from the beginning
+ of the variable argument list.
+
+ @return An argument of the type specified by TYPE.
+
+**/
+#define BASE_ARG(Marker, TYPE) (*(TYPE *) ((Marker += _BASE_INT_SIZE_OF (TYPE)) - _BASE_INT_SIZE_OF (TYPE)))
+
+/**
+ The macro that returns the byte offset of a field in a data structure.
+
+ This function returns the offset, in bytes, of field specified by Field from the
+ beginning of the data structure specified by TYPE. If TYPE does not contain Field,
+ the module will not compile.
+
+ @param TYPE The name of the data structure that contains the field specified by Field.
+ @param Field The name of the field in the data structure.
+
+ @return Offset, in bytes, of field.
+
+**/
+#define OFFSET_OF(TYPE, Field) ((UINTN) &(((TYPE *)0)->Field))
+
+/**
+ Macro that returns a pointer to the data structure that contains a specified field of
+ that data structure. This is a lightweight method to hide information by placing a
+ public data structure inside a larger private data structure and using a pointer to
+ the public data structure to retrieve a pointer to the private data structure.
+
+ This function computes the offset, in bytes, of field specified by Field from the beginning
+ of the data structure specified by TYPE. This offset is subtracted from Record, and is
+ used to return a pointer to a data structure of the type specified by TYPE. If the data type
+ specified by TYPE does not contain the field specified by Field, then the module will not compile.
+
+ @param Record Pointer to the field specified by Field within a data structure of type TYPE.
+ @param TYPE The name of the data structure type to return. This data structure must
+ contain the field specified by Field.
+ @param Field The name of the field in the data structure specified by TYPE to which Record points.
+
+ @return A pointer to the structure from one of it's elements.
+
+**/
+#define BASE_CR(Record, TYPE, Field) ((TYPE *) ((CHAR8 *) (Record) - (CHAR8 *) &(((TYPE *) 0)->Field)))
+
+/**
+ Rounds a value up to the next boundary using a specified alignment.
+
+ This function rounds Value up to the next boundary using the specified Alignment.
+ This aligned value is returned.
+
+ @param Value The value to round up.
+ @param Alignment The alignment boundary used to return the aligned value.
+
+ @return A value up to the next boundary.
+
+**/
+#define ALIGN_VALUE(Value, Alignment) ((Value) + (((Alignment) - (Value)) & ((Alignment) - 1)))
+
+/**
+ Adjust a pointer by adding the minimum offset required for it to be aligned on
+ a specified alignment boundary.
+
+ This function rounds the pointer specified by Pointer to the next alignment boundary
+ specified by Alignment. The pointer to the aligned address is returned.
+
+ @param Pointer The pointer to round up.
+ @param Alignment The alignment boundary to use to return an aligned pointer.
+
+ @return Pointer to the aligned address.
+
+**/
#define ALIGN_POINTER(Pointer, Alignment) ((VOID *) (ALIGN_VALUE ((UINTN)(Pointer), (Alignment))))
-///
-/// ALIGN_VARIABLE - aligns a variable up to the next natural boundry for int size of a processor
-///
+/**
+ Rounds a value up to the next natural boundary for the current CPU.
+ This is 4-bytes for 32-bit CPUs and 8-bytes for 64-bit CPUs.
+
+ This function rounds the value specified by Value up to the next natural boundary for the
+ current CPU. This rounded value is returned.
+
+ @param Value The value to round up.
+
+ @return Rounded value specified by Value.
+
+**/
#define ALIGN_VARIABLE(Value) ALIGN_VALUE ((Value), sizeof (UINTN))
-//
-// Return the maximum of two operands.
-// This macro returns the maximum of two operand specified by a and b.
-// Both a and b must be the same numerical types, signed or unsigned.
-//
+/**
+ Return the maximum of two operands.
+
+ This macro returns the maximum of two operand specified by a and b.
+ Both a and b must be the same numerical types, signed or unsigned.
+
+ @param a The first operand with any numerical type.
+ @param b The second operand. Can be any numerical type as long as is
+ the same type as a.
+
+ @return Maximum of two operands.
+
+**/
#define MAX(a, b) \
(((a) > (b)) ? (a) : (b))
+/**
+ Return the minimum of two operands.
+
+ This macro returns the minimal of two operand specified by a and b.
+ Both a and b must be the same numerical types, signed or unsigned.
+
+ @param a The first operand with any numerical type.
+ @param b The second operand. It should be the same any numerical type with a.
+
+ @return Minimum of two operands.
+
+**/
-//
-// Return the minimum of two operands.
-// This macro returns the minimal of two operand specified by a and b.
-// Both a and b must be the same numerical types, signed or unsigned.
-//
#define MIN(a, b) \
(((a) < (b)) ? (a) : (b))
-
//
-// EFI Error Codes common to all execution phases
+// Status codes common to all execution phases
//
+typedef UINTN RETURN_STATUS;
-typedef INTN RETURN_STATUS;
+/**
+ Produces a RETURN_STATUS code with the highest bit set.
-///
-/// Set the upper bit to indicate EFI Error.
-///
-#define ENCODE_ERROR(a) (MAX_BIT | (a))
+ @param StatusCode The status code value to convert into a warning code.
+ StatusCode must be in the range 0x00000000..0x7FFFFFFF.
+
+ @return The value specified by StatusCode with the highest bit set.
+
+**/
+#define ENCODE_ERROR(StatusCode) ((RETURN_STATUS)(MAX_BIT | (StatusCode)))
+
+/**
+ Produces a RETURN_STATUS code with the highest bit clear.
+
+ @param StatusCode The status code value to convert into a warning code.
+ StatusCode must be in the range 0x00000000..0x7FFFFFFF.
+
+ @return The value specified by StatusCode with the highest bit clear.
+
+**/
+#define ENCODE_WARNING(StatusCode) ((RETURN_STATUS)(StatusCode))
+
+/**
+ Returns TRUE if a specified RETURN_STATUS code is an error code.
+
+ This function returns TRUE if StatusCode has the high bit set. Otherwise, FALSE is returned.
+
+ @param StatusCode The status code value to evaluate.
+
+ @retval TRUE The high bit of StatusCode is set.
+ @retval FALSE The high bit of StatusCode is clear.
-#define ENCODE_WARNING(a) (a)
-#define RETURN_ERROR(a) ((INTN) (a) < 0)
+**/
+#define RETURN_ERROR(StatusCode) (((INTN)(RETURN_STATUS)(StatusCode)) < 0)
+///
+/// The operation completed successfully.
+///
#define RETURN_SUCCESS 0
+
+///
+/// The image failed to load.
+///
#define RETURN_LOAD_ERROR ENCODE_ERROR (1)
+
+///
+/// The parameter was incorrect.
+///
#define RETURN_INVALID_PARAMETER ENCODE_ERROR (2)
+
+///
+/// The operation is not supported.
+///
#define RETURN_UNSUPPORTED ENCODE_ERROR (3)
+
+///
+/// The buffer was not the proper size for the request.
+///
#define RETURN_BAD_BUFFER_SIZE ENCODE_ERROR (4)
+
+///
+/// The buffer was not large enough to hold the requested data.
+/// The required buffer size is returned in the appropriate
+/// parameter when this error occurs.
+///
#define RETURN_BUFFER_TOO_SMALL ENCODE_ERROR (5)
+
+///
+/// There is no data pending upon return.
+///
#define RETURN_NOT_READY ENCODE_ERROR (6)
+
+///
+/// The physical device reported an error while attempting the
+/// operation.
+///
#define RETURN_DEVICE_ERROR ENCODE_ERROR (7)
+
+///
+/// The device can not be written to.
+///
#define RETURN_WRITE_PROTECTED ENCODE_ERROR (8)
+
+///
+/// The resource has run out.
+///
#define RETURN_OUT_OF_RESOURCES ENCODE_ERROR (9)
+
+///
+/// An inconsistency was detected on the file system causing the
+/// operation to fail.
+///
#define RETURN_VOLUME_CORRUPTED ENCODE_ERROR (10)
+
+///
+/// There is no more space on the file system.
+///
#define RETURN_VOLUME_FULL ENCODE_ERROR (11)
+
+///
+/// The device does not contain any medium to perform the
+/// operation.
+///
#define RETURN_NO_MEDIA ENCODE_ERROR (12)
+
+///
+/// The medium in the device has changed since the last
+/// access.
+///
#define RETURN_MEDIA_CHANGED ENCODE_ERROR (13)
+
+///
+/// The item was not found.
+///
#define RETURN_NOT_FOUND ENCODE_ERROR (14)
+
+///
+/// Access was denied.
+///
#define RETURN_ACCESS_DENIED ENCODE_ERROR (15)
+
+///
+/// The server was not found or did not respond to the request.
+///
#define RETURN_NO_RESPONSE ENCODE_ERROR (16)
+
+///
+/// A mapping to the device does not exist.
+///
#define RETURN_NO_MAPPING ENCODE_ERROR (17)
+
+///
+/// A timeout time expired.
+///
#define RETURN_TIMEOUT ENCODE_ERROR (18)
+
+///
+/// The protocol has not been started.
+///
#define RETURN_NOT_STARTED ENCODE_ERROR (19)
+
+///
+/// The protocol has already been started.
+///
#define RETURN_ALREADY_STARTED ENCODE_ERROR (20)
+
+///
+/// The operation was aborted.
+///
#define RETURN_ABORTED ENCODE_ERROR (21)
+
+///
+/// An ICMP error occurred during the network operation.
+///
#define RETURN_ICMP_ERROR ENCODE_ERROR (22)
+
+///
+/// A TFTP error occurred during the network operation.
+///
#define RETURN_TFTP_ERROR ENCODE_ERROR (23)
+
+///
+/// A protocol error occurred during the network operation.
+///
#define RETURN_PROTOCOL_ERROR ENCODE_ERROR (24)
+
+///
+/// A function encountered an internal version that was
+/// incompatible with a version requested by the caller.
+///
#define RETURN_INCOMPATIBLE_VERSION ENCODE_ERROR (25)
+
+///
+/// The function was not performed due to a security violation.
+///
#define RETURN_SECURITY_VIOLATION ENCODE_ERROR (26)
+
+///
+/// A CRC error was detected.
+///
#define RETURN_CRC_ERROR ENCODE_ERROR (27)
+
+///
+/// The beginning or end of media was reached.
+///
#define RETURN_END_OF_MEDIA ENCODE_ERROR (28)
+
+///
+/// The end of the file was reached.
+///
#define RETURN_END_OF_FILE ENCODE_ERROR (31)
+
+///
+/// The language specified was invalid.
+///
#define RETURN_INVALID_LANGUAGE ENCODE_ERROR (32)
+///
+/// The string contained one or more characters that
+/// the device could not render and were skipped.
+///
#define RETURN_WARN_UNKNOWN_GLYPH ENCODE_WARNING (1)
+
+///
+/// The handle was closed, but the file was not deleted.
+///
#define RETURN_WARN_DELETE_FAILURE ENCODE_WARNING (2)
+
+///
+/// The handle was closed, but the data to the file was not
+/// flushed properly.
+///
#define RETURN_WARN_WRITE_FAILURE ENCODE_WARNING (3)
+
+///
+/// The resulting buffer was too small, and the data was
+/// truncated to the buffer size.
+///
#define RETURN_WARN_BUFFER_TOO_SMALL ENCODE_WARNING (4)
+/**
+ Returns a 16-bit signature built from 2 ASCII characters.
+
+ This macro returns a 16-bit value built from the two ASCII characters specified
+ by A and B.
+
+ @param A The first ASCII character.
+ @param B The second ASCII character.
+
+ @return A 16-bit value built from the two ASCII characters specified by A and B.
+
+**/
+#define SIGNATURE_16(A, B) ((A) | (B << 8))
+
+/**
+ Returns a 32-bit signature built from 4 ASCII characters.
+
+ This macro returns a 32-bit value built from the four ASCII characters specified
+ by A, B, C, and D.
+
+ @param A The first ASCII character.
+ @param B The second ASCII character.
+ @param C The third ASCII character.
+ @param D The fourth ASCII character.
+
+ @return A 32-bit value built from the two ASCII characters specified by A, B,
+ C and D.
+
+**/
+#define SIGNATURE_32(A, B, C, D) (SIGNATURE_16 (A, B) | (SIGNATURE_16 (C, D) << 16))
+
+/**
+ Returns a 64-bit signature built from 8 ASCII characters.
+
+ This macro returns a 64-bit value built from the eight ASCII characters specified
+ by A, B, C, D, E, F, G,and H.
+
+ @param A The first ASCII character.
+ @param B The second ASCII character.
+ @param C The third ASCII character.
+ @param D The fourth ASCII character.
+ @param E The fifth ASCII character.
+ @param F The sixth ASCII character.
+ @param G The seventh ASCII character.
+ @param H The eighth ASCII character.
+
+ @return A 64-bit value built from the two ASCII characters specified by A, B,
+ C, D, E, F, G and H.
+
+**/
+#define SIGNATURE_64(A, B, C, D, E, F, G, H) \
+ (SIGNATURE_32 (A, B, C, D) | ((UINT64) (SIGNATURE_32 (E, F, G, H)) << 32))
+
#endif