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Re: [Qemu-devel] Monitor Memory Accesses
From: |
Laurent Desnogues |
Subject: |
Re: [Qemu-devel] Monitor Memory Accesses |
Date: |
Wed, 18 Feb 2009 14:26:19 +0100 |
On Wed, Feb 18, 2009 at 2:17 PM, Andrea Pellegrini
<address@hidden> wrote:
> Thanks for the quick reply!
>
> I obtain the instruction addresses through the function
> static TranslationBlock *tb_find_slow(target_ulong pc,
> target_ulong cs_base,
> uint64_t flags)
>
> ......
> // Andrea, let's check the pc
> printf("PC: 0x%x\n", pc);
> ....
>
> in cpu_exec.c. So far it worked but maybe there is a better way to do it.
No, it doesn't work. Try to track the PC of a loop and you'll see
what I mean.
You should start by learning what is run-time code generation ;)
> Where can I find more informations about the "helper"?
> I'm just starting working with Qemu so I'm still not 100% sure about what is
> going on. :-P
The documentation is the source. It's not easy to enter, but once
you've understood the basic inner-workings, doing what you're
after should not be very difficult.
> I searched in target-i386/translate.c for
> tcg_gen_qemu_ld
> or
> tcg_gen_qemu_lst
> and nothing pops up. Am I looking at the right thing?
I talked about tcg_gen_qemu_ld*.
Just to make it clear, I am talking of svn version of qemu. If you're
using 0.9.1 then it's a completely different story, and I invite you to
take a look at Vince Weaver's work:
http://www.csl.cornell.edu/~vince/projects/qemusim/
http://www.csl.cornell.edu/~vince/projects/qemu-trace/
Laurent
- [Qemu-devel] Monitor Memory Accesses, Andrea Pellegrini, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses, Laurent Desnogues, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses, Andrea Pellegrini, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses,
Laurent Desnogues <=
- Re: [Qemu-devel] Monitor Memory Accesses, Andrea Pellegrini, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses, Laurent Desnogues, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses, Vince Weaver, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses, Andrea Pellegrini, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses, Vince Weaver, 2009/02/18
- Re: [Qemu-devel] Monitor Memory Accesses, Andrea Pellegrini, 2009/02/18