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GNU MCU Eclipse RISC-V Embedded GCC v8.1.0-2-20181019 released

· 2 min read
Liviu Ionescu (ilg)
Liviu Ionescu (ilg)

Version 8.1.0-2-20181019 is a maintenance release of GNU MCU Eclipse RISC-V Embedded GCC.

Download​

The binary files are available from GitHub Releases.

Compliance​

This release closely follows the official RISC-V distribution maintained by SiFive.

It is more or less similar to the 20180928 release, except support for SiFive specific CLIC interrupts, which was not included.

The following commits were used:

GDB is a bit special, since it is only partly upstreamed and the RISC-V repos are no longer updated, so the current build uses git://sourceware.org/git/binutils-gdb.git, the 7dd36a6f1c commit from Aug 23rd, 2018 (same as the SiFive release).

Improvements​

All architectures, ABIs and libraries supported by the riscv64-unknown-elf toolchain are also supported, with the following improvements:

  • a newer newlib was included, which supports the 'underscore' syscall functions
  • the mandatory reference to libgloss in the linker configuration was removed
  • the march=rv32imaf/mabi=ilp32f library was added to the list of multi-libs
  • support for newlib-nano was added
  • the standard documentation, in PDF and HTML, was added

Binaries​

Binaries for Windows, macOS and GNU/Linux are provided.

The GNU/Linux binaries were built on two CentOS 6 Docker images (32/64-bit), and run on any distribution based on CentOS 6 or later.

The Windows binaries were built with mingw-w64, and run on any reasonably recent i686 and x86_64 Windows machines.

Instructions on how to install the binaries are available in the project README.

The toolchain is also available as an xPack and can be conveniently installed with xpm:

xpm install --global @gnu-mcu-eclipse/riscv-none-gcc

This installs the latest available version.

For better control and repeatability, the build scripts use Docker containers; all files required during builds are available as a separate gnu-mcu-eclipse/riscv-none-gcc-build project.

Known problems​

  • none.

Checksums​

The SHA-256 hashes for the files are:

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gnu-mcu-eclipse-riscv-none-gcc-8.1.0-2-20181019-0952-centos64.tgz

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gnu-mcu-eclipse-riscv-none-gcc-8.1.0-2-20181019-0952-macos.tgz

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gnu-mcu-eclipse-riscv-none-gcc-8.1.0-2-20181019-0952-win32.zip

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gnu-mcu-eclipse-riscv-none-gcc-8.1.0-2-20181019-0952-win64.zip