Reviewing my previous work, the two package you need are:
alsa-lib
alsa-utils
apt-get source alsa-utils
cd alsa-utils-1.0.25
export DEB_BUILD_OPTIONS=“nostrip noopt debug"
dpkg-buildpackage -rfakeroot -uc -us
make
make install
or
dpkg -i libasound2*.deb
or
apt-get install libasound2-dbg
apt-g
I did this years ago. From what I can find, I believe this is how you get this
done:
sudo apt-get build-dep libasound2
apt-get source libasound2
cd alsa-lib-1.0.22/
export DEB_BUILD_OPTIONS=nostrip,noopt
dpkg-buildpackage -rfakeroot -uc -us
After that, you will have some *.deb files created, whi
On Wed, Apr 6, 2016 at 8:44 PM, Rick Mann wrote:
> That looks like something that would be useful to figure out how to do.
> The only part that's not immediately clear is "rebuild the entire ALSA
> library and tools with debug symbols. Also, your Kernel must have debug
> symbols turned on."
>
> C
That looks like something that would be useful to figure out how to do. The
only part that's not immediately clear is "rebuild the entire ALSA library and
tools with debug symbols. Also, your Kernel must have debug symbols turned on."
Can I do this with RCN's kernel build script setup?
Thanks.
OK, so you have to rebuild the entire ALSA library and tools with debug
symbols. Also, your Kernel must have debug symbols turned on. You will need to
enable various ftrace features with make config. Here is a typical script I use
to capture program flow.
===
#!/bin/bash
set -x
pause() {
lo
> On Apr 6, 2016, at 16:53 , Peter Hurley wrote:
>
> If this is a latency problem, ftrace is probably your best bet, but
> function_graph and the other tracers can induce even more latency.
Nothing so esoteric. I'm just trying to get the damn thing to work at all. It's
worked in previous kerne
> On Apr 6, 2016, at 5:27 PM, 'Mark Lazarewicz' via BeagleBoard
> wrote:
>
> If it's a company project the Lauterbach is well worth the money
Definitely. Lauterbach is one of my favorite tools and I cannot imagine doing
some work without it. It is a difficult tool to learn, but it is very pow
If it's a company project the Lauterbach is well worth the money
Sent from Yahoo Mail on Android
On Wed, Apr 6, 2016 at 5:56 PM, Rick Mann wrote:
What would I need to get/do to enable me to single-step through kernel code on
BBB/G? JTAG header, some kind of interface, and a bunch of soft
> On Apr 6, 2016, at 4:53 PM, Peter Hurley wrote:
>
> On 04/06/2016 02:56 PM, Rick Mann wrote:
>> What would I need to get/do to enable me to single-step through
>> kernel code on BBB/G? JTAG header, some kind of interface, and a
>> bunch of software installed on Ubuntu? Can anyone make specific
On 04/06/2016 02:56 PM, Rick Mann wrote:
> What would I need to get/do to enable me to single-step through
> kernel code on BBB/G? JTAG header, some kind of interface, and a
> bunch of software installed on Ubuntu? Can anyone make specific
> recommendations? Is it even possible?
On 04/06/2016 03:3
For audio, your best solution is ftrace. If you use function_graph option, then
you can see the hierarchy of the call sequence. You can also use trace_printk
to display variables at specific locations.
BTW, Lauterbach is about $5K investment for the base tool with USB3 connection.
You might be
Thanks, John. I've tried printk and other logging, but it's virtually
impossible to trace something like audio, which spans many modules.
I'll look into Lauterbach.
> On Apr 6, 2016, at 15:31 , John Syne wrote:
>
> You can do this with CCSV6 with a USB200 JTAG adapter, but CCSV6 is no longer
You can do this with CCSV6 with a USB200 JTAG adapter, but CCSV6 is no longer
kernel aware. CCSV4 was kernel aware, but won’t work with the current kernels.
You can still debug with single stepping, software and hardware breakpoints,
read/write memory, etc. Trying to debug a kernel module withou
What would I need to get/do to enable me to single-step through kernel code on
BBB/G? JTAG header, some kind of interface, and a bunch of software installed
on Ubuntu? Can anyone make specific recommendations? Is it even possible?
Thanks,
--
Rick Mann
rm...@latencyzero.com
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