Chisel building riscv-gnu-toolchain for Sodor - chisel

Question

I want to build 'riscv-gnu-toolchain' for Sodor Project available in :
ucb-bar/riscv-sodor
I failed to clone it as suggested by its readMe using :
'git clone git#github.com:riscv/riscv-gnu-toolchain.git'
I also tried to use the latest version of the repository, and it generates the following warning :
'configure: WARNING: unrecognized options: --disable-float, --with-xlen'
Which suggests that this is not the right version. I tried to use the version in ROCKET CHIP, but I failed also.
Which version of 'riscv-gnu-toolchain' I can use to compile Sodor's tests?

Answer 1

Thank you Chris. I found a version that work with Sodor. Here are the commands that can be used to checkout this version and build it:
git clone https://github.com/riscv/riscv-gnu-toolchain
cd riscv-gnu-toolchain
git submodule update --init --recursive
git checkout 06c957ab
mkdir build
cd build
../configure --prefix=${INSTALL_LOC} --disable-float --disable-atomic --with-xlen=32 --with-arch=RV32I
make

Answer 2

Sodor currently only supports the Privileged Spec v1.7, so you need to use an older version of riscv-gnu-toolchain. Older versions of the toolchain will recognize the options --disable-float and --with-xlen. It appears that there are no tags on riscv-gnu-toolchain, so you'll have to do some detective work to find the correct commit.