peterjohnson/opensdk

OpenSDK

Supported Languages

• C
• C++
• Fortran (roboRIO only)
  • To power the RobotPy project

Supported Hosts

All tiers should compile with these scripts. But support will only be given if the OS vendor supports the platform.

For example, these tools should work on Windows XP but support will only be given to Windows 8.1 or newer. The same logic applies for macOS and Ubuntu.

Tier 1

OS	Arch	Known to work on
Windows	x86_64	Windows XP
Linux	x86_64	Ubuntu 20.04
Mac	x86_64	macOS 10.9
Mac	ARMv8	macOS 11.0

Tier 2

Tier 2 is used for select targets on an as needed basis.

OS	Arch	Known to work on	Note
Linux	i686	Ubuntu 20.04	Only for Raspberry Pi OS targets

Tier 3

Tier 3 is not built in CI nor is tested, but bugs or merge requests will be addressed.

OS	Arch	Known to work on
Windows	i686	Windows XP
Linux	i686	Ubuntu 20.04
Linux	ARMv7	Ubuntu 20.04
Linux	ARMv8	Ubuntu 20.04

Supported Targets

Architecture	Operating System	Version
ARMv7 (softfp)	N.I. Linux (roboRIO)	GCC 12.1
ARMv7 (softfp)	N.I. Linux (roboRIO) Sumo	GCC 7.3
ARMv6	Raspberry Pi OS 11	GCC 10.2
ARMv7	Debian/Raspberry Pi OS 11	GCC 10.2
ARMv7	Ubuntu 18.04	GCC 7.3
ARMv7	Ubuntu 20.04	GCC 9.3
ARMv8	Debian/Raspberry Pi OS 11	GCC 10.2
ARMv8	Ubuntu 18.04	GCC 7.3
ARMv8	Ubuntu 20.04	GCC 9.3

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Resources

• Linaro GCC toolchains
  • Good examples of (generic) ARM toolchains
• GCC Build instructions and configs

Credits

• (crosstool-ng) GCC patches for M1 hosting

Licensing Notice

NOTE: Refer to the text in COPYING for the full legal statement. The text written below is made from a very basic understanding of GPLv3 (and its exceptions).

As per GPLv3 (snippet below) all scripts to build the GNU toolchain must be provided under the same license. So, the scripts in the repository are released under GPLv3.

For an executable work, complete source code means [...], plus the scripts used to control compilation and installation of the executable.

The GCC exception still applies so the toolchain built with these scripts can still be used for any project as per the exception. A copy of this exception can be found here.

The files under patches/ are released under the same license as the project in which it targets. As of April 2022, all projects are currently GPLv3 so the patches are also released under GPLv3.