Re: [Qemu-devel] Monitor Memory Accesses

[Laurent Desnogues <laurent.desnogues@gmail.com>]

On Wed, Feb 18, 2009 at 1:48 PM, Andrea Pellegrini
<andrea.pellegrini@gmail.com> wrote:
> I want to track all the memory accesses performed in a program execution.
> Right now I'm working on an amd64 machine with target x86_64 but eventually
> I would like to do the same for other architectures (at least ARM and PPC).
> With few changes I was able to print out the address of the instructions
> that the processor executes (well at least the first address of the basic
> block)

I guess you're doing that by calling a helper.  If you don't, that
won't work :-)

> and now I was looking for a way to record all memory loads and
> stores. I believe I have to change some code in the file translate.c and I
> was wondering if anybody can give me a quick help about which part of code I
> should change. It would be great if I could call a function right before
> every time a load or store is executed.

You should look for parts of translate.c that generate target loads
and stores;  basically look for calls to tcg_gen_qemu_ld* and
tcg_gen_qemu_st*.


Laurent