[Qemu-devel] QEMU code tree - system-calls project

[Raphael Voisin]

Hi all.

I'm interested in intercepting guest-OS (running under QEMU) system 
calls inside the VM.
In order to do that, i try to seek over the code the best place to 
handle such syscall, but i have an organisation problem:
- I don't find a code documentation for QEMU. I'm lost in the code 
because i don't know what each folder belongs to... So, is there any 
document presenting QEMU code genericaly (like virtualbox at 
http://www.virtualbox.org/wiki/Source_code_organization) ?
- If there is not, can you say me what is the best way to trap 
system-call in QEMU VM ?
- What linux-user/syscall.c is intented to do ? Can he help me in any way ?

Thanx for your response.