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When the DXE core is loaded, it invokes the PeCoffExtraActionLib library function 'PeCoffLoaderRelocateImageExtraAction' explicitly, which may be in addition to the same function having been called by the DxeIpl PE/COFF loader instance. The ImageContext that DXE core presents to this function is only partially initialized, which may result in the following output on AArch64 systems: add-symbol-file ..MdeModulePkg/Core/Dxe/DxeMain/DEBUG/DxeCore.dll 0x5F226240 <some intermediate output> add-symbol-file ..MdeModulePkg/Core/Dxe/DxeMain/DEBUG/DxeCore.dll 0x5F226000 This is caused by incorrect data in the ImageContext structure, which means the start of the .text section is calculated incorrectly. In general, it is the duty of the caller to present a valid ImageContext structure, so let's add the missing values before invoking PeCoffLoaderRelocateImageExtraAction(). Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Star Zeng <star.zeng@intel.com>