BIOS Undercover: Porting C/C++ To Phoenix UEFI (Part 4)

This week we conclude our series of articles by point out how to use the C/C++ libraries with your driver:

1.    Change Your INF Entry Point. Each INF file has an IMAGE_ENTRY_POINT= statement. Change it to one of the following:

EXE Type	IMAGE_ENTRY_POINT	main() Prototype
PEI Module	PeiMainStartup	EXTERN_C EFI_STATUS EFIAPI PeiMain(   IN EFI_FFS_FILE_HEADER* FileHeader,   IN EFI_PEI_SERVICES**   PeiServices   );
DXE Boot Services Driver	DxeMainBSStartup	EXTERN_C EFI_STATUS EFIAPI DxeMain(   IN EFI_HANDLE       ImageHandle,   IN EFI_SYSTEM_TABLE *SystemTable   );
DXE Runtime Services Driver	DxeMainRTStartup	EXTERN_C EFI_STATUS EFIAPI DxeMain(   IN EFI_HANDLE       ImageHandle,   IN EFI_SYSTEM_TABLE *SystemTable   );
SMM	SmmStartup	EXTERN_C EFI_STATUS EFIAPI SmmMain(   IN EFI_HANDLE       ImageHandle,   IN EFI_SYSTEM_TABLE *SystemTable   );
EFI Shell	mainCRTStartup	EXTERN_C int EFIAPI main(   IN int  argc,   IN char*argv[]   );

 

2.    Change Your INF [include.common].

Add "$(EFI_SOURCE)\phoenix\features\clibrary\include" to the [include.common] section.

 

3.    Change Your INF [libraries.common].

Add libc.lib to the [libraries.common] section.

4.    Add Libraries To Your DSC.

Add this line to the 32-bit and 64-bit sections of the [libraries.platform] section of the build.dsc file.

$(EFI_SOURCE)\phoenix\Features\Clibrary\bin\$(PROCESSOR)\libc.inf