Re: [edk2-devel] enable MemoryProfile for uefi shell app

["M.T." <xzavierpower@gmail.com>]

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Hello Rafael

Apologies for the lack of response.  Life had other plans for me, but I am
getting back into the project, and am still wondering how to get this
working.

I took your advice on rebuilding the BIOS to include the protocols.
First I grabbed the latest repo which is edk2-stable202405.
I setup the build as normal and went through OvmfPkg/OvmfPkgX64.dsc, and
added the memory profiler libs wherever it seemed necessary.
At first the build complained a few times about the protocols not being
supported in a few sections, so I removed those, and eventually got it to
build.
I'm able to startup the built image in qemu, and I can run
MemoryProfileInfo.efi, and now it does not return any errors, but it also
does not show any signs of running either.
I tried running my utility prior to running MemoryProfileInfo.efi, and it
still won't put anything out.
Looking at MemoryProfileInfo.efi itself, I see it should print out some
text as soon as it runs, or an error message, but neither is happening.
I'm not sure what I'm doing wrong here, but I will keep tinkering with it
to see if I can figure it out.

One question comes to mind, am I replacing the UefiMemoryAllocationLib with
UefiMemoryAllocationProfileLib, or just adding it in?

Thank you
M.T.


On Thu, Jun 15, 2023 at 8:40 AM Rafael Rodrigues Machado <
rafaelrodrigues.machado@gmail.com> wrote:

> 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@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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