Linux abi-emu project

This is a revival of the old linux-abi [1] project, which in turn was a maintenance of iBCS. Conceptually, this project is a syscall emulation layer similar to the Linux emulation that can be found in FreeBSD [2] or NetBSD [3]. A nice overview on BSD syscalls can be seen on this reddit post [4]

Building

To build abiemu as loadable kernel modules without having to rebuild the kernel, follow these instructions [5]:

AIMS / TODO

• Get abiemu to build as kernel modules for a current kernel
• Practice by porting the glendix [6] Plan9 syscall emulation to abiemu
• Implement NetBSD syscall emulation, try to run NetBSD in chroot
• Implement/update Solaris syscall emulation, try to run illumos in chroot
• Try to implement FreeBSD and OpenBSD syscall emulation
• Try to implement syscall emulations for more architectures
• Release and maintain proof-of-concept native self-hosting and binary-compatible distros where the BSD/Solaris system is chrooted from a minimal Linux system during boot. (for example: "NetBSD/kLinux").

Upstream sources

Linux-abi svn sources were downloaded 2018-07-02 from sourceforge.

Glendix git sources were downloaded 2018-07-02 from github

References

1 : http://linux-abi.sourceforge.net/

2 : https://svnweb.freebsd.org/base/head/sys/i386/linux/syscalls.master?view=log

3 : http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/compat/linux/arch/i386/syscalls.master?only_with_tag=MAIN

4 : https://www.reddit.com/r/BSD/comments/8vysxg/a_question_about_bsd_kernel_syscallsabi/e1vj277/

5 : https://github.com/torvalds/linux/blob/master/Documentation/kbuild/modules.txt

6 : https://github.com/anantn/glendix