Citando Frank Rowand <frowand.l...@gmail.com>:
> On 10/3/2014 11:14 AM, joaoandrefe...@sapo.pt wrote:
>> Citando Frank Rowand <frowand.l...@gmail.com>:
>>
>>> On 10/3/2014 4:03 AM, joaoandrefe...@sapo.pt wrote:
>>>> Hello again,
>>>>
>>>> By the way, while googling for this error I've noticed that a
>>>> common mistake is to invoke GDB on the wrong location (e. g.
>>>> http://ehc.ac/p/kgdb/mailman/message/23341685/). What I'm doing
>>>> is
>>>
>>> ^^^^ The answer is in that link. As I mentioned before, invoke
>>> gdb from the root of your kernel source tree. Since your vmlinux
>>> is in a different directory, you can supply the absolute path of
>>> vmlinux in the gdb command line.
>>
>> Sorry, but I think I'm not fully understanding this. I don't know
>> exactly what do you mean by "kernel source tree" in the host machine.
>> In the target (KGDB), I guess it's /usr/src/linux, since it was there
>> I've compiled the kernel. In the host (GDB), apart from the vmlinux
>> file, I don't know what else relates to the kernel I'm trying to
>> debug on the target. I've tried to launch "gdb /boot/vmlinux" in both
>> / and /usr/src, but things are't changing. So, a newbie doubt has
>> arrived, can you enlighten me? Thanks for your patience!
>
> No problem (on the patience).
>
> You guessed correctly, you need the kernel source tree that you used
> to compile the kernel for the target. Since you compiled on the
> target, you will have to copy that source tree to your host
> system (the one you run gdb on).
>
> -Frnk
Hi again, Frank,
Thanks! I knew I should be missing something. Strangely, none of the
tutorials I've found online mentioned this important detail. Anyway,
although as KGDB / GDB seem to be running correctly (at least judging
from the GBD output), as you pointed out previously, I'm looking into
using kdmx.
Thanks again,
João
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