Citando Frank Rowand <frowand.l...@gmail.com>:
> On 10/7/2014 4:04 AM, joaoandrefe...@sapo.pt wrote:
>
> < snip >
>
>>
>> Hello again,
>>
>> Just one more doubt, regarding kdmx: after researching a little bit,
>> I need to confirm that I indeed need to use it, since that in the
>> cases I've found the setup seemed different from mine (sharing a
>> serial port among GDB / KGDB). I have two different physical machines
>> (target and host), each one with its own physical serial port, and a
>> RS-232 cable making the connection between them (I think this is the
>> "classic" setup). Sorry for insisting but this doubt arose
>> yesterday.
>>
>> In the case I really need to use kdmx, following the instructions you
>> kindly pointed me (http://elinux.org/Kgdb), in the link to Git
>> provided there
>> (git://git.kernel.org/pub/scm/utils/kernel/kgdb/agent-proxy.git/) I
>> can't seem to find the kdmx files. However, accessing the link above
>> (strikethrough), I'm able to download a kdmx tar.gz. However,
>> following the instructions in the README-KDMX.txt file, I'm having no
>> luck:
>>
>> $ sudo make make:
>> `kdmx' is up to date.
>> $ sudo ./kdmx -h
>> ./kdmx: ./kdmx: cannot execute binary file
>
> You should not be using sudo. You do not need superuser capabilities
> to use kdmx. If the serial port you are using requires you to be
> superuser to access it then you should instead modify the permissions
> on the serial port or add your user to the group that has permissions
> on the serial port.
>
> Get rid of the pre-built kdmx:
> make clean
>
> (or if that does not work: rm kdmx)
>
> The compile kdmx:
> make
>
> Then print help:
> ./kdmx -h
Even after reading the help, I'm not 100% sure whether I should run
kdmx on the target (KGDB) or on the host (GDB). It seems to me it is
meant to be run on the target, but if I run it there (after resuming
the target kernel boot, of course), I 'll have as output something like:
/dev/pts/1 is slave pty for for terminal emulator
/dev/pts/2 is slave pty for gdb
Next, in the host machine, if I try to connect GDB to /dev/pts/2, I'll have:
(gdb) target remote /dev/pts/2
Remote debugging using /dev/pts/2
Ignoring packet error, continuing...
warning: unrecognized item "timeout" in "qSupported" response
Ignoring packet error, continuing...
What am I doing wrong?
Again, thanks for everything.
João
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