[edk2-devel] enable MemoryProfile for uefi shell app

M.T. xzavierpower at gmail.com
Wed Jun 7 14:34:24 UTC 2023


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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