RISC-V GNU Toolchain

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About

RISC-V GNU Toolchain is ranked #2 of 24 in embedded systems toolchains on Inferse. It runs on Linux, macOS, Windows. There is a free plan.

Compared on embedded systems toolchains

Free plan: Yesgithub.com
Debugger included: Yesgithub.com
SDK components: GCC, binutils, GDB, Newlib, Picolibc, glibc, musl, uClibc, QEMU, Spikegithub.com
Target architectures: RV32 and RV64 with standard RISC-V extensions; configurable multilib targetsgithub.com
Host platforms: Linux, macOS, Windows via Linux subsystem or Cygwingithub.com
Build systems: Autotools configure and Makegithub.com
Debug interfaces: GDB simulator, QEMU, Spikegithub.com
License model: open-sourcegithub.com

Facts

Purpose: The project provides a RISC-V C and C++ cross-compiler that can build bare-metal ELF or Linux ELF toolchains.github.com · 29 Sept 2026
C libraries: Bare-metal builds can use Newlib or Picolibc, while Linux builds can use glibc, musl, or uClibc.github.com · 29 Sept 2026
Architecture and ABI: The build defaults to RV64GC and supports RV32 or RV64 configurations with selectable architecture extensions and ABIs.github.com · 29 Sept 2026
Multilib: Multilib builds can target both 32-bit and 64-bit systems, and are supported for Newlib and Linux/glibc toolchains.github.com · 29 Sept 2026
LLVM integration: LLVM can be built alongside the toolchain with the --enable-llvm configure flag, but LLVM and multilib configuration flags cannot be combined.github.com · 29 Sept 2026
Simulation: The project documents QEMU, GDB, and experimental Spike simulator options for running tests, with simulator support varying by toolchain.github.com · 29 Sept 2026
Testing: The repository includes DejaGNU test support, and documents make check targets for GCC, Binutils, and glibc on Linux toolchains.github.com · 29 Sept 2026
Build requirements: The README says a build downloads about 200 MiB of upstream sources and needs about 8 GiB of disk space; cloning the repository takes around 6.65 GB.github.com · 29 Sept 2026
Platforms: The README provides build instructions for Linux distributions and macOS, including Apple Silicon; it also discusses Linux subsystem or Cygwin builds on Windows.github.com · 29 Sept 2026
Who it is for: The README describes its development section as intended for developers, advanced users, or people building with their own source trees.github.com · 29 Sept 2026
Support channel: The repository provides an issue tracker and pull request interface on GitHub.github.com · 29 Sept 2026
License: The repository has a LICENSE file containing licensing terms for the project and its included components.github.com · 29 Sept 2026
What it does: It is a RISC-V C and C++ cross-compiler that builds bare-metal ELF or Linux ELF toolchains.github.com · 30 Sept 2026
Bare-metal libraries: Bare-metal builds can use Newlib or Picolibc.github.com · 30 Sept 2026
Linux libraries: Linux builds can use glibc, musl, or uClibc.github.com · 30 Sept 2026
Supported host systems: The README provides build prerequisites for Ubuntu, Fedora/CentOS/RHEL, Arch Linux, and macOS.github.com · 30 Sept 2026
Architecture and ABI: It supports rv32i or rv64i with standard extensions and lists ilp32 and lp64 ABI variants.github.com · 30 Sept 2026
Multilib: Multilib is available for Newlib and Linux/glibc toolchains; musl, uClibc, and Picolibc build a single variant.github.com · 30 Sept 2026
LLVM integration: LLVM can be built in combination with the toolchain using the --enable-llvm configure flag.github.com · 30 Sept 2026
Simulation: The project documents QEMU, GDB, and experimental Spike simulators for testing, with QEMU as the maintained test-suite allowlist.github.com · 30 Sept 2026
Test suite: A port of the DejaGnu test suite is available, and make check and make report are wired for Newlib and Linux/glibc toolchains.github.com · 30 Sept 2026
Build size: The README says cloning takes around 6.65 GB and a build needs about 8 GiB of disk space.github.com · 30 Sept 2026
Development audience: The development section is described as intended for developers, advanced users, or users building with their own source tree.github.com · 30 Sept 2026
Security information: The repository page shows a Security and quality section with 0 alerts.github.com · 30 Sept 2026