[edk2-devel] enable MemoryProfile for uefi shell app

[Rafael Machado]

Hi MT



Just to understand better.

Do you have access to the BIOS code so you can compile the BIOS with
support to MemoryProfile?



As far as I can see it seems you have added the needed libraries to your
.dsc file, but to make memoryprofile working you need to have a BIOS
capable of doing that. At the BIOS you are running the required protocols
are not detected, this indicates you don't have the BIOS code compiled with
support to MemoryProfile.



In case you don’t have access to a real BIOS code or CRB, maybe you can try
using OVMF with MemoryProfile enabled (not sure if this already works, but
it may be a way).



Hope this can help.

Thanks

Rafael

Em qua., 7 de jun. de 2023 às 11:34, M.T. <xzavierpower at gmail.com> escreveu:

> Hello group
>
> I'm looking for some help with MemoryProfile to catch some memory leaks in
> a custom uefi application.
>
> I followed the instructions found on:
> https://github.com/tianocore/tianocore.github.io/wiki/Memory-leak-detection-with-memory-profile-feature
>
> However I can't seem to get this to work, let me paint a more complete
> picture.
>
> My uefi app is standalone, it is not a part of any other package and has
> its own .dsc file and this is where I make all the changes to enable Memory
> Profiler.
> The memory I want to watch for is UEFI_APPLICATION, any calls to Allocate*
> functions to make sure everything has been freed accordingly, I suspect it
> has not hence the leak.
>
> So my debug build has the following Libs:
>
> MemoryAllocationLib|MdeModulePkg/Library/UefiMemoryAllocationProfileLib/UefiMemoryAllocationProfileLib.inf
>
> MemoryProfileLib|MdeModulePkg/Library/UefiMemoryAllocationProfileLib/UefiMemoryAllocationProfileLib.inf
>
> PCDs are set like this:
> gEfiMdeModulePkgTokenSpaceGuid.PcdMemoryProfilePropertyMask|0x1
> gEfiMdeModulePkgTokenSpaceGuid.PcdMemoryProfileMemoryType|0x60
> gEfiMdeModulePkgTokenSpaceGuid.PcdMemoryProfileDriverPath|{0x04, 0x06,
> 0x14, 0x00,  0x83, 0xA5, 0x04, 0x7C, 0x3E, 0x9E, 0x1C, 0x4F, 0xAD, 0x65,
> 0xE0, 0x52, 0x68, 0xD0, 0xB4, 0xD1, 0x7F, 0xFF, 0x04, 0x00}
>
> In Components I added:
> MdeModulePkg/Application/MemoryProfileInfo/MemoryProfileInfo.inf
>
> This also required that I add DxeServiceLib
>
> Everything builds without issues, my app runs as expected, however when I
> try to run
> MemoryProfileInfo.efi, I only get the following:
> UefiMemoryProfile: Locate MemoryProfile protocol - Not Found
> GetUefiMemoryProfileData - Not Found
> SmramProfile: Locate SmmCommunication protocol - Not Found
> GetSmramProfileData - Not Found
>
> Couple of questions about this:
> Is MemoryProfileInfo.efi supposed to be run after my app exits?
> Or is it more like a wrapper for my app (ie. valgrind)?
>
> The errors seem to indicate that the libs are still missing, are they
> supposed
> to be linked into the OVMF image as well perhaps, or anywhere else aside
> for my app?
>
> Appreciate any help, debugging third party libs has become a major
> headache and I hope
> memoryProfiler can help with this.
>
> Cheers
> mt
>
> 
>
>


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