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RISC-V Software Ecosystem Overview

This document captures the status of the RISC-V Software Ecosystem. It will be eventually be moved to the forthcoming RISC-V wiki. Please add to the list and fix inaccuracies.

Toolchain

Binutils

• Maintainer(s): Andrew Waterman (SiFive), Palmer Dabbelt (University of California, Berkeley)
• Version: HEAD
• Upstreaming status: Upstreamed, will be in next release
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-binutils-gdb
• Upstream repository: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git
• Privileged Spec: 1.9.1
• User Spec: 2.0
• ABI:
• Links: https://groups.google.com/a/groups.riscv.org/forum/#!msg/sw-dev/2BqnHsreb6E/f8pTyYxHIgAJ

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=e23eba971dd409b999dd83d8df0f842680c1c642

Debugging

Gdb

Is part of binutils, see above.

OpenOCD

• Maintainer(s): Tim Newsome (SiFive)
• Version: 0.10.0-dev
• Upstreaming status: Not started
• Future work: Waiting for spec to stabilize
• RISC-V repository: https://github.com/sifive/openocd
• Upstream repository: https://sourceforge.net/p/openocd/code/ci/master/tree/
• Debug Spec: https://dev.sifive.com/documentation/risc-v-external-debug-support/
• Supported Debug Spec version: 0.11

GCC

• Maintainer(s): Andrew Waterman (SiFive), Palmer Dabbelt (University of California, Berkeley)
• Version: 6.1.0
• Upstreaming status: Pre-submission cleanup
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-gcc
• Upstream repository: https://gcc.gnu.org/viewcvs/gcc/trunk/ https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git (Git mirror)
• Privileged Spec: 1.9.1
• User Spec: 2.0
• ABI:

LLVM

• Maintainer(s): Alex Bradbury (LowRISC), Colin Schmidt (University of California, Berkeley)
• Version: HEAD
• Upstreaming status: MC changes are upstream, assembler patches submitted
• Future work:
• Upstream repository: http://llvm.org/viewvc/llvm-project/llvm/trunk https://github.com/llvm-mirror/llvm (Git mirror)
• Privileged Spec:
• User Spec: 2.0
• ABI:
• Links: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/RISCV/

clang

CompCert

• Maintainer(s): Prashanth Mundkur (SRI)
• Version: 2.6
• Upstreaming status:
• Future work:
• RISC-V repository: https://github.com/pmundkur/CompCert/blob/riscv-2.6-alpha/
• Upstream repository: https://github.com/AbsInt/CompCert.git
• Privileged Spec:
• User Spec: 2.0
• ABI:

Simulators, Emulators

Spike

• Maintainer(s): Andrew Waterman (SiFive), Yunsup Lee (SiFive)
• Version: HEAD
• Future work:
• Upstream repository: https://github.com/riscv/riscv-isa-sim
• Privileged Spec: 1.9.1
• User Spec: 2.0
• ABI:

QEMU

• Maintainer(s): Sagar Karandikar (University of California, Berkeley)
• Version: 2.7.50
• Upstreaming status: Patches submitted
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-qemu
• Upstream repository: http://git.qemu.org/qemu.git
• Privileged Spec: 1.9
• User Spec: 2.0
• ABI:

gem5

• Maintainer(s): Alec Roelke (University of Virginia)
• Version:
• Upstreaming status: Patches submitted
• Future work:
• RISC-V repository:
• Upstream repository: http://repo.gem5.org/gem5 https://github.com/uart/gem5-mirror (Git mirror)
• Privileged Spec:
• User Spec: 2.0
• ABI:
• Links: http://reviews.gem5.org/users/aroelke/

Angel

• Maintainer(s): Sagar Karandikar (University of California, Berkeley)
• Version:
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-angel
• Privileged Spec:
• User Spec: 2.0
• ABI:

Operating Systems, Distributions, Userlands

Linux Kernel

• Maintainer(s): Andrew Waterman (SiFive), Albert Ou (SiFive)
• Version: 4.6.2
• Upstreaming status: Not submitted yet
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-linux
• Upstream repository: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
• Privileged Spec: 1.9.1
• User Spec: 2.0
• ABI:

Fedora

• Maintainer(s): Richard WM Jones, Stefan O’Rear, David Abdurachmanov
• Version: 25
• Status: All packages from Fedora, but concentrating on @Core group (except dracut and plymouth)
• Upstreaming status: Upstreamed
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec: (depends on kernel used)
• User Spec: 2.0
• ABI:
• Links: http://fedoraproject.org/wiki/Architectures/RISC-V

Debian

• Maintainer(s): Manuel A. Fernandez Montecelo
• Version:
• Status:
• Upstreaming status: Out of tree
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:
• Links: https://wiki.debian.org/RISC-V

https://content.riscv.org/wp-content/uploads/2016/07/Wed1115_Working_Towards_a_Debian_RISC-V_Port.pdf

Poky

• Maintainer(s): Martin Maas (University of California, Berkeley)
• Version:
• Status:
• Upstreaming status: Out of tree
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-poky
• Upstream repository: http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/
• Privileged Spec:
• User Spec: 2.0
• ABI:

Gentoo

• Maintainer(s): Palmer Dabbelt (University of California, Berkeley)
• Version:
• Status:
• Upstreaming status: Out of tree
• Future work:
• RISC-V repository: https://github.com/palmer-dabbelt/riscv-gentoo
• Upstream repository: https://github.com/gentoo/gentoo
• Privileged Spec:
• User Spec: 2.0
• ABI:

Busybox

Buildroot

FreeBSD

• Maintainer(s): Ruslan Bukin (FreeBSD)
• Version: 11.0
• Status: Base system, no ports yet
• Upstreaming status: RISC-V support in FreeBSD 11.0
• Future work: FreeBSD ports system
• Upstream repository: https://github.com/freebsd/freebsd (Mirror)
• Privileged Spec: 1.9
• User Spec: 2.0
• ABI:
• Links: https://wiki.freebsd.org/riscv

https://riscv.org/wp-content/uploads/2016/01/Tues1445-freebsd-riscv-1.pdf

NetBSD

• Maintainer(s): Matt Thomas (NetBSD), Reinoud Zandijk (NetBSD)
• Version:
• Status:
• Upstreaming status:
• Future work:
• Upstream repository: http://cvsweb.netbsd.org/bsdweb.cgi/src/?only_with_tag=MAIN https://github.com/jsonn/src (Git Mirror)
• Privileged Spec: 1.9
• User Spec: 2.0
• ABI:

seL4

• Maintainer(s): Hesham Almatary (CSIRO)
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository: https://github.com/heshamelmatary/sel4-riscv
• Upstream repository: https://github.com/seL4/seL4
• Privileged Spec:
• User Spec: 2.0
• ABI:
• Links: http://heshamelmatary.blogspot.com/2015/07/howto-build-and-run-sel4-on-risc-v.html

RTEMS

• Maintainer(s): Hesham Almatary (CSIRO)
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository: https://github.com/heshamelmatary/rtems-riscv
• Upstream repository: https://git.rtems.org/rtems/
• Privileged Spec:
• User Spec: 2.0
• ABI:
• Links: http://heshamelmatary.blogspot.com/2015/12/rtems-port-for-risc-v-withwithout-sel4.html

FreeRTOS

• Maintainer(s):
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:

Apache Mynewt

• Maintainer(s): James Pace, Runtime
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:
• Links: https://riscv.org/wp-content/uploads/2016/07/Wed930_riscv_apachemynewt_v1.2.pdf

Languages, Libraries, Runtimes

Glibc

• Maintainer(s):
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-glibc
• Upstream repository: https://sourceware.org/git/?p=glibc.git
• Privileged Spec:
• User Spec: 2.0
• ABI:

Newlib

• Maintainer(s):
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-newlib
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:

Musl

• Maintainer(s):
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:

Go

• Maintainer(s): Benjamin Barenblat (Google)
• Version: HEAD
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository: https://github.com/riscv/riscv-go
• Upstream repository: https://github.com/golang/go
• Privileged Spec:
• User Spec: 2.0
• ABI:

Ocaml

• Maintainer(s): Nicolas Ojeda Bar
• Version: 4.04.0
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository: https://github.com/nojb/riscv-ocaml
• Upstream repository: https://github.com/ocaml/ocaml
• Privileged Spec:
• User Spec: 2.0
• ABI:

Jikes RVM (Java Virtual Machine)##

• Maintainer(s): Martin Maas (University of California, Berkeley)
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:

OpenJDK/HotSpot (Java Virtual Machine)

• Maintainer(s): Michael Knyszek, Martin Maas (University of California, Berkeley)
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:

Booting

coreboot

• Maintainer(s): Ron Minnich (Google), Jonathan Neuschäfer
• Version: master
• Status: runs on spike, lowRISC/Nexys4DDR. Linux doesn't quite work yet.
• Upstreaming status: upstream
• Future work:
• RISC-V repository:
• Upstream repository: https://review.coreboot.org/cgit/coreboot.git/
• Privileged Spec: 1.9
• User Spec: 2.0
• ABI:

More information:

• https://riscv.org/wp-content/uploads/2016/01/Tues1345-riscvcoreboot.pdf
• https://www.youtube.com/watch?v=-KnwZzbvp1c (coreboot on RISC-V, Ron Minnich, coreboot conference 2016)
• https://www.youtube.com/watch?v=CDNIWuf1jAk (coreboot on RISC-V, Ron Minnich, RISC-V workshop)

UEFI

• Maintainer(s): Abner Chang, Dong Wei (HP Enterprise)
• Version:
• Status:
• Upstreaming status:
• Future work:
• RISC-V repository:
• Upstream repository:
• Privileged Spec:
• User Spec: 2.0
• ABI:

https://riscv.org/wp-content/uploads/2016/01/Tues1415-RISC-V-and-UEFI.pdf

Proxy Kernel/BBL

• Maintainer(s):
• Version:
• Status:
• Upstreaming status:
• Future work:
• Upstream repository: https://github.com/riscv/riscv-pk
• Privileged Spec: 1.9.1
• User Spec: 2.0
• ABI: