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EdkCompatibilityPkg VA_LIST: Fix build issue with GCC 4.4 

Merge from MdePkg/Include/Base.h to fix build issues with GCC 4.4.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10585 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jljusten 2010-06-15 02:46:03 +00:00
parent 0e7e330262
commit 5f68233c6f
1 changed files with 59 additions and 17 deletions
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76
EdkCompatibilityPkg/Foundation/Include/EfiStdArg.h
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@ -58,7 +58,14 @@ Abstract:
#ifndef _EFISTDARG_H_
#define _EFISTDARG_H_
#define _EFI_INT_SIZE_OF(n) ((sizeof (n) + sizeof (UINTN) - 1) &~(sizeof (UINTN) - 1))
/**
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)
//
@ -83,9 +90,7 @@ Abstract:
#define VA_END(Marker) ((void)0)
#define VA_COPY(Dest, Start) __va_copy (Dest, Start)
#elif defined(__GNUC__)
#elif defined(__GNUC__) && !defined(NO_BUILTIN_VA_FUNCS)
//
// Use GCC built-in macros for variable argument lists.
//
@ -102,23 +107,60 @@ typedef __builtin_va_list VA_LIST;
#define VA_END(Marker) __builtin_va_end (Marker)
#define VA_COPY(Dest, Start) __builtin_va_copy (Dest, Start)
#else
//
// Also support coding convention rules for var arg macros
//
#ifndef VA_START
///
/// Variable used to traverse the list of arguments. This type can vary by
/// implementation and could be an array or structure.
///
typedef CHAR8 *VA_LIST;
#define VA_START(ap, v) (ap = (VA_LIST) & (v) + _EFI_INT_SIZE_OF (v))
#define VA_ARG(ap, t) (*(t *) ((ap += _EFI_INT_SIZE_OF (t)) - _EFI_INT_SIZE_OF (t)))
#define VA_END(ap) (ap = (VA_LIST) 0)
#define VA_COPY(dest, src) ((void)((dest) = (src)))
#endif
/**
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