This still needs some work. After using it for about half a day, I can see that it can switch threads and see locals, but sometimes can't print a backtrace. Loading code is also not as bulletproof as the J-Link.
I'll report back when I make more progress on it. -adam On Thu, Feb 13, 2020 at 4:03 PM Adam Feuer <a...@adamfeuer.com> wrote: > Hi, > > I realized that the Sony thread-awareness changes for nuttx are in OpenOCD > <http://openocd.org/>'s master branch now. I added an OpenOCD target for > the SAMA5D3 and SAMA5D2 chips (though the D2 is still untested). This is > based on work done by Olivier Schonken > <https://github.com/olivierschonken/openocd-sama5>. > > I have only tested with the Olimex ARM-Tiny-H JTAG adapter. > <https://www.olimex.com/Products/ARM/JTAG/ARM-USB-TINY-H/> It seems to > work ok, though not as bullet proof as the J-Link. But the J-Link doesn't > have nuttx thread awareness. > > Right now the code is on this branch of my fork of OpenOCD: > https://github.com/adamfeuer/openocd/tree/feature/sama5d3-support > > I used these instructions to get it running: Debugging a NuttX target > with GDB and OpenOCD > > <https://micro-ros.github.io/docs/tutorials/advanced/debugging_gdb_openocd/> > – you can follow these instructions but use the above branch. Here's the > commandline I used invoke OpenOCD: > > /usr/local/bin/openocd -f >> /usr/local/share/openocd/scripts/interface/ftdi/olimex-arm-usb-tiny-h.cfg >> -f /usr/local/share/openocd/scripts/board/at91sama5d3-xpld.cfg -c init >> > > You need to be at the U-Boot prompt for this to work the first time. > Thereafter you can do "mon halt", and "load nuttx" and then debug as usual > from there. > > It still needs some testing– when I have used it for a while I'll submit a > patch to OpenOCD. If you use this and find or fix problems, let me know! > > Thanks to the Masatoshi Tateishi and team from Sony and to Olivier > Schonken for their software! > > cheers > adam > -- > Adam Feuer <a...@adamfeuer.com> > -- Adam Feuer <a...@adamfeuer.com>
