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Issues with compiling and loading a program #2020

Closed phillippZZ closed 1 month ago

phillippZZ commented 1 month ago

hi, everyone. I'm trying to run a program to test the speed of reading/writing of L1, L2 cache and memory of naxriscv.

What I tried is to put the test program into the rootfs.cpio file downloaded from "https://github.com/litex-hub/linux-on-litex-vexriscv/files/8331338/linux_2022_03_23.zip", and then load all the files to the board with litex_term.

It didn't work well because when I use the following instructions to install riscv-gnu-toolchain, it fails.

./configure --prefix=/opt/riscv --enable-multilib make linux

I also tried a docker container with old version of riscv-gnu-toolchain, which could compile my program. But I got the following error when running the program on the linux system from "https://github.com/litex-hub/linux-on-litex-vexriscv/files/8331338/linux_2022_03_23.zip".

root@buildroot:~# ./test ./test: /lib32/libc.so.6: version `GLIBC_2.29' not found (required by ./test)

I think this is because the /lib32/libc.so.6 on the linux system has a incompatible version:

GNU C Library (Buildroot) stable release version 2.34. Copyright (C) 2021 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Compiled by GNU CC version 10.3.0. libc ABIs: UNIQUE ABSOLUTE IFUNC ...

So, is there any solution to compiling my program in the correct way? Also, it would be okay to run my program in bare-metal environment. But I don't know how to use libraries like and in this scenario.

AndrewD commented 1 month ago

The demo shows how to build bare metal code as a start. Does this work for you?

phillippZZ commented 1 month ago

@AndrewD , Thank you! I believe bare metal code could work. But I can't find the source code of it. May I ask how I can modify and compile the source code? I guess loading the .bin file with litex_term won't be a problem.