gdb not fetching registers

[wilhelmw201]

Hi,

I have been setting up the riscv toolchain on my computer, I have compiled the riscv-gnu-toolchain from https://github.com/riscv/riscv-gnu-toolchain and code from this repository, and have put them all in one folder.

On running the riscv-tests as described here https://github.com/riscv/riscv-tests/tree/master/debug (I called make), I was able to pass some tests but fail in another bunch of tests: DebugBreakpoint, DebugSymbols, InterruptTest, Hwbp1/2, etc. The failed tests gives mostly errors like this: Could not fetch register "ft0"; remote failure reply 'E0E' Could not fetch register "time"; remote failure reply 'E0E' and so on. I have also spotted a Error: Debugger is not authenticated to target Debug Module. (dmstatus=0x4c0c02). Use riscv authdata_read and riscv authdata_write commands to authenticate.

Is it that I have set up things incorrectly?

Thank you.

[jim-wilson]

riscv-tools is mostly unmaintained. Try a git log in the riscv-tests dir and you will see that it contains a copy of riscv-tests from Sept 2018. But if you do a git fetch and git log origin/master you will see riscv-tests has a last change from 2 days ago. So the first step I would suggest is that you update to a recent version of riscv-tests. Also, I'd suggest filing riscv-tests questions in the riscv-tests repo instead of the riscv-tools repo because they are more likely to be answered there.

riscv-gnu-toolchain is maintained but we don't have a dedicated gdb developer, so I don't know how well the gdb riscv-tests integration works, or how well it is being maintained.