Hi,
If you really want to work with Linux JTAG debugging you need to have a
JTAG debugger and debugging software that is really Linux aware. There
aren't many available that really support both kernel and app debugging
at the same time for Linux using JTAG connectivity.
You may want to check out Peter Griffin's GDB and Linux Kernel Awareness
slides from Embedded Linux Conference Europe 2015:
http://events.linuxfoundation.org/sites/events/files/slides/ELC-E%20Linux%20Awareness.pdf
If you want to save your time and do your work today I recommend paying
a bit more than that and go for even for entry level Lauterbach's Power
Debug debugger. Their software (Trace32) is not pretty for today's
standards but has bunch of features that makes your life easier. There
is slight learning curve for the tool but once that is done it gets your
work done. Price is thou 4 number figure (in euros/dollars -- lower half).
If you are looking for ARM DS-5 -- it has also some features and a bit
shinier user interface (in some places) but currently lacks in some
features that are found in Trace32 -- perhaps biggest is co-debugging
over JTAG for Kernel and Applications at the same time, next missing
feature is general flexibility I suppose. This same story matches quite
a lot of debugging software currently available. DS-5's system profiler
is something that might be interest for some.
If you want to play around with open source alternatives -- especially
then check the presentation above.
Also note that BBB has TI's Compact JTAG connector -- so get matching
adapter and solder the socket.
TI has done some work with their Code Composer Studio and then there are
some low cost JTAG debuggers that are compatible with the tool -- you
are locked to TI's ecosystem but that might also be something to
consider. It also exposes some "homemade" features of TI processors.
Haven't used the tool for Linux kernel debugging but there might be
someone here with experience with the tool for that purpose.
And if someone has other kind of experiences in here I would love to
hear :) both OSS and commercial solutions are in interest.
Thanks,
Vesa Jääskeläinen
On 05/05/16 07:52, Raul Piper wrote:
Is TIN FlysWatter2 <http://www.tincantools.com/JTAG/Flyswatter2.html>
a better tool for debugging the kernel driver in BBB.Can some one
please post thier experience?
-Rp
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