- if you have jtag debuggers, nothing like that.,
pls refer http://omappedia.org/wiki/Android_Debugging#Lauterbach_TRACE32
you can debug starting right from bootloader, kernel, android init,
and any library.
- if you can get trace via debug port, you can start logcat very
early from your init.rc, way before you get shell or adb.
service logcat /system/bin/logcat -f /dev/kmsg
oneshot
--
Regards,
Deva
www.bittoggler.com
On Sun, Sep 12, 2010 at 7:14 PM, Chris Stratton <[email protected]> wrote:
> As with any other embedded linux you want a console for kernel
> messages and ideally an interactive shell under the gui. Serial ports
> are still preferred for this (htc's phones have one with wierd
> voltages on the extusb headphone lines) - less advantageous
> possibilities are doing it over usb or even jtag extensions.
>
> Ideally whatever bootloader runs before the kernel uses the same
> mechanism.
>
> On Sep 12, 7:06 am, gopu <[email protected]> wrote:
>> Please provide what are debugging methods or see the log messages
>> before logcat is available?
>> If some crash happened before the adb avilable how to debug that?
>>
>> Thanks
>> Gopu
>
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