L4/Fiasco kernel debugger (jdb) and step over command

Matthias Lange matthias.lange at kernkonzept.com
Wed Dec 27 11:05:02 CET 2017


Hi Valery,

> On 26. Dec 2017, at 17:54, Valery V. Sedletski <_valerius at mail.ru> wrote:
> 
> Hi. I'm trying to debug my program with jdb. (I'm using the old L4/Fiasco / L4Env, not the current Fiasco.OC / L4Re). I enabled the permanent single step mode (with the S+ command) and a permanent show the Thread Control Block (with the t+ command) option. So, I was able to single-step with "g" command. Also, I found "jr" (go until return (ret or iret) is encountered) and "jb" (go until the next branch instruction, like jmp/call/int) commands, but they don't seem to work. When I enter them, I see only a single step to the next instruction. Are these two commands broken? How do I step over a "call"/"int" instruction?

Fiasco/L4Env has been outdated for almost 10 years now and hasn’t been maintained since then. Sorry, but here we are unable to help you with your problem.

Are there any reasons you chose Fiasco/L4Env over Fiasco.OC/L4Re?

Best,
Matthias.

> Thanks in advance,
> 
> valery
> 
> 
> _______________________________________________
> l4-hackers mailing list
> l4-hackers at os.inf.tu-dresden.de
> http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers




More information about the l4-hackers mailing list