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Updated EFAPI definition for x64 GCC. Original thinking was to add optional EFIAPI support to standard GCC. New thinking is to support EFIAPI as a seperate processor target. This is to reduce validation risk to the main line GCC. Update the definition and comments to match current thinking. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1883 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ajfish 2006-11-01 18:26:48 +00:00
parent 3767c118ef
commit 0ffc5441a7
1 changed files with 10 additions and 5 deletions
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15
MdePkg/Include/x64/ProcessorBind.h
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@ -177,13 +177,18 @@ typedef INT64 INTN;
#elif __GNUC__
///
/// Define the standard calling convention reguardless of optimization level.
/// efidecl is an extension to GCC that supports the differnece between x64
/// GCC ABI and x64 Microsoft* ABI. EFI is closer to the Microsoft* ABI and
/// EFIAPI makes sure the right ABI is used for public interfaces.
/// eficecl is a work in progress and we do not yet have the compiler
/// The GCC support assumes a GCC compiler that supports the EFI ABI. The EFI
/// ABI is much closer to the x64 Microsoft* ABI than standard x64 (x86-64)
/// GCC ABI. Thus a standard x64 (x86-64) GCC compiler can not be used for
/// x64. Warning the assembly code in the MDE x64 does not follow the correct
/// ABI for the standard x64 (x86-64) GCC.
///
#define EFIAPI __attribute__((efidecl))
#define EFIAPI
#else
///
/// The default for a non Microsoft* or GCC compiler is to assume the EFI ABI
/// is the standard.
///
#define EFIAPI
#endif