The toolchains were built according to the instructions of the
official RISC-V GNU Compiler Toolchain repository
using Ubuntu on a 64-bit x86 machine (actually on Ubuntu on Windows).
The provided toolchains support all ratified and implemented ISA extensions (e.g. A and Zicsr).
These prebuilt toolchains are part of the NEORV32 RISC-V Processor project.
Note
Platform-specific instructions for building the toolchain from scratch can be found in NEORV32 UG: Building The Toolchain From Scratch
Toolchain prefix: riscv32-unknown-elf or riscv64-unknown-elf (see the individual releases)
| Status | Release (tag) | Download | GCC | binutils | march | mabi | c-lib |
|---|---|---|---|---|---|---|---|
| 🟢 | rv32e-231223 | 💾 download | 13.2.0 | 2.41 | rv32e |
ilp32e |
newlib |
| 🟢 | rv32i-131023 | 💾 download | 13.2.0 | 2.41 | rv32i |
ilp32 |
newlib |
| 🔴 | rv32i-4.0.0 | 💾 download | 12.1.0 | 2.39 | rv32i |
ilp32 |
newlib |
🟢 active / recommended, 🔴 outdated
Warning
Cloning this repository (via git clone) will not include the release assets and will
not include the actual toolchain archives! The compressed toolchain archives (.tar.gz) are available as
releases assets only.
Click on the according download link in the table above to directly download the archive of choice from the according release page via the release assets.
You can use wget to directly download a toolchain archive from the table above. Select the toolchain of
choice, right-click on the "download" link, click "copy link address" and use that as argument for wget. Example:
wget https://github.com/stnolting/riscv-gcc-prebuilt/releases/download/rv32i-4.0.0/riscv32-unknown-elf.gcc-12.1.0.tar.gzCreate a folder where you want to install the toolchain, for example /opt/riscv (you might need
sudo to create this folder and copy data to it).
$ sudo mkdir /opt/riscvNavigate to the download folder. Decompress your toolchain (replace TOOLCHAIN with your toolchain archive
of choice). Again, you might have to use sudo if your target directory is protected.
$ sudo tar -xzf TOOLCHAIN.tar.gz -C /opt/riscv/Now add the toolchain's bin folder to your system's PATH environment variable.
Your can also add this line to your .bashrc if applicable.
$ export PATH=$PATH:/opt/riscv/binTest the toolchain:
$ riscv32-unknown-elf-gcc -v
Using built-in specs.
COLLECT_GCC=riscv32-unknown-elf-gcc
COLLECT_LTO_WRAPPER=/opt/riscv/libexec/gcc/riscv32-unknown-elf/12.1.0/lto-wrapper
Target: riscv32-unknown-elf
Configured with: /tmp/rv_gcc/riscv-gnu-toolchain/gcc/configure --target=riscv32-unknown-elf --prefix=/opt/riscv --disable-shared --disable-threads --enable-languages=c,c++ --with-pkgversion=g1ea978e3066 --with-system-zlib --enable-tls --with-newlib --with-sysroot=/opt/riscv/riscv32-unknown-elf --with-native-system-header-dir=/include --disable-libmudflap --disable-libssp --disable-libquadmath --disable-libgomp --disable-nls --disable-tm-clone-registry --src=/tmp/rv_gcc/riscv-gnu-toolchain/gcc --disable-multilib --with-abi=ilp32 --with-arch=rv32i --with-tune=rocket --with-isa-spec=2.2 'CFLAGS_FOR_TARGET=-Os -mcmodel=medlow' 'CXXFLAGS_FOR_TARGET=-Os -mcmodel=medlow'
Thread model: single
Supported LTO compression algorithms: zlib
gcc version 12.1.0 (g1ea978e3066)This project is released under the GPL-2.0 license. No copyright infringement intended. Other implied or used projects might have different licensing - see their documentation to get more information.
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