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Install Claude Code on RISC-V Linux Hosts

Claude Code is damn powerful! But if you want to install it on RISC-V Linux hosts via the official installer script, you will be greeted with some cold rejection!

jsun@lpi4a:~$ curl -fsSL https://claude.ai/install.sh | bash
Unsupported architecture: riscv64

Below is the workaround method, tested on LicheePi 4A board:

# install nodejs (>=v18) and npm
sudo apt install nodejs npm

# (optional) install npm packages to user-local; no sudo needed
mkdir -p ~/.npm-global
npm config set prefix '~/.npm-global'
echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

# install claude-code as npm package
npm install -g @anthropic-ai/claude-code

# run!
cd ~/my-code
claude
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Build Spec Tools for CPU2006 Benchmark

CPU2006 is an old obsolete benchmark. But in modern days we may still need to build and run it. The biggest problem is usually in building the tools needed by benchmark itself, called spec tools.

Below are the steps I used to build spec tools for AArch64 (64bit ARM) and RISC-V 64 on Ubuntu OS (22.04 and 23.04).

  • Install Fortran compiler, sudo apt install gfortran
  • Obtain CPU2006 install ISO image (need license)
  • Untar and install the source tree (install_archives/cpu2006.tar.xz)
  • cd cpu2006/tools/src
  • obtain and update all the config.guess and config.sub files with the latest ones
wget -O config.guess 'https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD'
wget -O config.sub 'https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD'

Once build is done, copy the attached config files below to under config/ directory and run with them. For example,

runspec --config ubuntu_riscv64 --action=setup int fp
runspec --config ubuntu_aarch64 --noreportable --size=test --iterations=1 mcf gcc
runspec --config ubuntu_aarch64 --size=ref --iterations=1 int fp

Attached files:

cpu2006-build-tools.patchDownload
ubuntu_aarch64.cfgDownload
ubuntu_riscv64.cfgDownload