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Subject: Re: Custom core file
From: Duane Ellis <duane@duaneellis.com>
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> I have a self-written bare-metal hypervisor for x86 arch and I'd like to =
perform postmortem debugging of it's core (not VM, hypervisor itself!).
> So the idea is to save physical memory state and later use GDB to interpr=
et it.

[snip]

> Or may be there are any other ways to feed a raw physical memory to GDB?


here=E2=80=99s a method

GDB has a built in Python interpreter.

GDB has commands such as =E2=80=9Cdump=E2=80=9D and =E2=80=9Crestore=E2=80=
=9D that allow you to copy a binary file into memory.

Thus - you can use a bit of python to extract your custom core dump
For example you might use Python to unpack your custom core file into vario=
us temp binary files
Then in the same python script execute dump/restore commands to load these =
into memory

http://www.delorie.com/gnu/docs/gdb/gdb_69.html

See:   restore FILENAME binary =E2=80=A6..