undefined reference to 'gEfiLoadedImageProtocolGuid'

[frasercadger]

While linking SELoader I get the following error:

Efi/Lib/libSELoader.a(Image.o): In function LoadImage':Image.c:(.text+0x26): undefined reference to gEfiLoadedImageProtocolGuid'
x86_64-poky-linux-ld:Efi/Lib/libSELoader.a(Image.o): relocation R_X86_64_PC32 against undefined hidden symbol `gEfiLoadedImageProtocolGuid' can not be used when making a shared object
x86_64-poky-linux-ld: final link failed: Bad value

I can see why this happens:

In Src/Efi/Lib/Image.c EfiLoadedImageProtocolGuid declaration is dependent on:

#if GNU_EFI_VERSION <= 303

Then in LoadImage(), EfiLoadedImageProtocolGuid is accessed unconditionally:

Status = EfiProtocolOpen(gThisImage, &gEfiLoadedImageProtocolGuid,
(VOID **)&LoadedImage);

Causing the undefined symbol.

Therefore if the GNU_EFI_VERSION is > 303, linking will fail.

Is this the correct behaviour? Should versions of gnu-efi above 3.0.3 be supported with some alternative? Or is it intended, that only versions below 3.0.3 are supported (despite Mak.env having a default of 3.0.5)?

[jiazhang0]

@frasercadger I definitely miss this for a while :(

gEfiLoadedImageProtocolGuid is defined since gnu-efi 3.0.4 rather than 3.0.3. I guess you are using gnu-efi 3.0.3. This issue is fixed by 9c2723a.

[frasercadger]

gEfiLoadedImageProtocolGuid is defined since gnu-efi 3.0.4 rather than 3.0.3.

Ah, that makes sense. At the time I wasn't very familiar with the codebase, and was unsure why the define would only be for versions < 3.0.3.

I guess you are using gnu-efi 3.0.3

Yes, for now. I'm building this through Yocto, and I'm not sure when we'll be upgrading.

This issue is fixed by 9c2723a

Thanks!

[jiazhang0]

I believe this issue has been resolved. Plz reopen this if you have further issues. Thanks.