Re: [PATCH] roms: Support compile the efi bios for loongarch

[lixianglai <lixianglai@loongson.cn>]

On 9/4/23 7:42 PM, Gerd Hoffmann wrote:
>    Hi,
>
>> The loongarch cross-compilation tool on the fedora38 operating system is a
>> bit old,
> The gcc 12 -> 13 update for the cross compilers landed meanwhile,
> right now we have:
>
>      binutils-loongarch64-linux-gnu.x86_64 2.39-4.fc38    @updates
>      gcc-loongarch64-linux-gnu.x86_64      13.2.1-1.fc38  @updates

Compile with the compiler of the above version to compile UEFI normally,

but there are some problems running on qemu,

which require a later version of binutils to solve.

It means that we need UEFI compiled by the following version

of the compiler to run properly on qemu:

binutils-loongarch64-linux-gnu-2.40-3.fc39.x86_64
gcc-loongarch64-linux-gnu-13.2.1-1.fc39.x86_64

>
> Trying to build the loongarch firmware throws errors
> (edk2/edk2-platforms repos, master branch, checkout
> being a few days old):
>
> build.py...
> /home/kraxel/projects/edk2-platforms/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc(...): error 4000: Instance of library class [AcpiPlatformLib] is not found
> 	in [/home/kraxel/projects/edk2/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf] [LOONGARCH64]
> 	consumed by module [/home/kraxel/projects/edk2/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf]

This compilation error is caused by a change in the AcpiPlatformLib 
position in edk2, which is referenced by loongarch's UEFI.

We have already submitted the patch to the edk2 community and may need a 
day or two to merge.

You can get the corresponding submission from the link below:

https://github.com/tianocore/edk2-platforms/pull/94/files


Thanks,

xianglai


> take care,
>    Gerd