Connect to an existing (running) GDB target
I want to debug a Zynq7000 using CLion. I'm able to build the executable from CLion and I'm also able to debug it using the standard GDB. For this, I first do some Xilinx-specific nonsense using their tools. Then I can debug via
$ arm-none-eabi-gdb <path to executable>
(gdb) target remote localhost:3000
(gdb) loadetc. and it works with breakpoints and everything.
Since CLion also uses GDB internally, I expect it's possible to have the CLion UI to the GDB session. But how?
I looked at the “Remote GDB Server configuration” but I don't want to start a server, since the server is already running.
I also tried the “remote debug” configuration. It says: “Debugger connected to tcp:localhost:3000”, and in the menu `Debugger/DGB` I see a line number and function name that match my program. But now what? It just does nothing beyond that point. How do I get it to show that position in the code? Make a break point? Write a custom GDB command and have it transmitted?
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Hello!
First, you need to place a breakpoint in your code in CLion, and then start a debug session - https://www.jetbrains.com/help/clion/remote-debug.html#start-remote-debug.
Thanks for the response and sorry for the long break! In any case, this does not work for me. Setting a breakpoint before starting the “remote debug” does not change the behavior.
I get the message “Debugger connected to tcp:localhost:3000” and I'm able to pause/stop the session, which does actually affect the hardware. However, if I pause the session (using the “Pause Program” button in the debugger tab), it says “Debugger was unable to disassemble function containing address …: Cannot access memory at address”. Again, using the standard `arm-none-eabi-gdb` works fine.