[edk2] question about the debug scripts for Trace32 and RealView debuggers

Subject: [edk2] question about the debug scripts for Trace32 and RealView debuggers

From: Thirupathiah Annapureddy <writetothiru@gmail.com>

To: edk2-devel@lists.sourceforge.net

Date: 2011-04-28 06:44:20

Hi,

I am starting off with UEFI development for our custom ARM based platform.
I did manage to bring up the EBL very quickly.

Now I am trying to get the Source Level Debugging work for our platform.
I use the script file trace32_load_symbols.cmm from BeagleBoardPkg.
This script is trying to find the UEFI sytem table at 4MB offsets
(&mem_ptr=&mem_ptr-0x400000) from the top of memory working towards
the start of the memory.

First of all, why does the script look for the system table signature
at 4MB offsets?
In our platform, DXE Core is creating the system table at some
location which is not aligned to 4MB. Is this normal?

Thanks in advance for your answers.

--thiru

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