Hi... On Thu, Mar 15, 2012 at 23:03, Jacques <jacq...@rambo-mes.net> wrote: > I'm running an application in qemu through the userspace qemu-i386 and > attaching to the process with gdb. I have pygdb scripts that then > interact with gdb. > > The issue is that at some point I want to change $eip and redirect > instruction flow. I then set $eip to the value I need which gives me the > following: > > Program received signal SIGSEGV, Segmentation fault. > 0x46367046 in ?? ()
I am not keen in this kind of situation,but I think you hit "non existing" EIP. By that, I mean maybe you think such EIP truly exist (based on ELF info perhaps?), but in reality since qemu user mode do dynamic translations and not really following ELF offset, you got segfault. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com
