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The prototypes of EbcInterpret() and ExecuteEbcImageEntryPoint() are private to the AARCH64 implementation of EbcDxe, so we can shuffle the arguments around a bit and make the assembler thunking glue a lot simpler. For ExecuteEbcImageEntryPoint(), this involves passing the EntryPoint argument as the third parameter, rather than the first, which allows us to do a tail call. For EbcInterpret(), instead of copying each argument beyond #8 from one native stack frame to the next (before another copy is made into the VM stack), pass a pointer to the argument stack. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> Reviewed-by: Feng Tian <feng.tian@intel.com>