lone VS termux-packages

I made something somewhat close to that: a freestanding lisp. It targets the Linux kernel directly. No libc.

https://github.com/lone-lang/lone

> register scanning isn't portable

Certainly not but it wasn't particularly hard to implement either. I just wrote some inline assembly for every architecture. Here's my programming language's x86_64 and aarch64 implementations:

https://github.com/lone-lang/lone/blob/master/architecture/x...

https://github.com/lone-lang/lone/blob/master/architecture/a...

Not too long ago, a project of mine was shared here on HN.

https://news.ycombinator.com/item?id=38126052

In that thread I wrote:

> I have this vision in my mind: embedding lone modules into sections of the lone ELF and shipping it out. Zero dependencies, self-contained.

I've been working on that since that day. Proud to say I've gotten it to work and thought I'd make it the subject of my first Show HN. Some free software projects gained features along the way too.

The link is to an article with a proper demonstration, technical details and what happened in the past few weeks.

The complete repository itself can be found here:

https://github.com/lone-lang/lone

I've completely reorganized it since the last thread. Would be very happy if you guys tried it out.

To test my programming language. It's a freestanding lisp interpreter that doesn't link to libc. I wrote the code that handles the environment variables and in order to test it I needed full control over the program's inputs including its environment. The env utility provides this control by emptying the environment and setting only the variables I specify, solving 90% of the problem. Only thing I still can't control is argv[0]. With this new feature upstreamed, my test suite will be complete.

Here's the code if you'd like to take a look:

https://github.com/lone-lang/lone#testing

https://github.com/lone-lang/lone/blob/master/scripts/test.b...

> only to be confronted with the notorious 'incompatible glibc version error'. It's super annoying.

I started making my own freestanding Linux Lisp because of this exact issue. It's nowhere near as performant as something like SBCL but it's small and once compiled has no dependencies and will literally run on any Linux.

https://github.com/lone-lang/lone

I'm taking a break from this project but I plan to add a feature where I can put a Lisp script into the ELF itself so I can just copy it with the scripts included.

The kernel just puts the data contiguously on the stack. Obtaining pointers to them can seem somewhat magical if you're writing a nolibc program but I wouldn't call it horrible.

I implemented it for my programming language with some rather simple assembly code:

https://github.com/lone-lang/lone/blob/master/arch/x86_64.c#...

https://github.com/lone-lang/lone/blob/master/arch/aarch64.c...

usbredirect, USB drives/disks, Termux, termux-usb, QEMU, and Alpine Linux in action in April 2024 on an Android 11 phone that is not rooted --> Update-6, Update-7, Update-8, Update-9, Update-10 at https://github.com/termux/termux-packages/issues/19635

"USB Network Redirection protocol description version 0.7 (19 May 2014)": https://gitlab.freedesktop.org/spice/usbredir/-/blob/main/do... (gitlab.freedesktop.org/spice/usbredir/-/blob/main/docs/usb-redirection-protocol.md)

"How to use Spice "Open remote computing"" Hans de Goede "@ T-DOSE 2011, Eindhoven": https://www.youtube.com/watch?v=e1fC3GOTHOY (www.youtube.com/watch?v=e1fC3GOTHOY)

Phone (not rooted) running Android 11 and Termux doing superuser/root operations on a USB flash drive connected to the phone, for example "cryptsetup luksFormat /dev/sda1" and "mkfs.ext4 /dev/mapper/v1" --> Update-6 through Update-8 and "Connecting a USB device to QEMU using termux, termux-usb, usbredirect" at https://github.com/termux/termux-packages/issues/19635 (see also Update-9, Update-10, Update-11).

Done on a phone that is not rooted running Termux, termux-usb, usbredirect, and QEMU --> "cryptsetup luksFormat /dev/sda1" and "cryptsetup luksOpen /dev/sda1 v1" and "mkfs.ext4 /dev/mapper/v1" and "mount /dev/mapper/v1 /root/1" where "/dev/sda1" is a partition on a USB flash drive ("dev/sda") plugged in the phone: https://github.com/termux/termux-packages/issues/19635 (github.com/termux/termux-packages/issues/19635'cryptsetup)

Yes. Even without enabling root, you can install Termux[1] and have a full Linux cli environment with ssh.

> don't understand not more people want to access their DCIM folder via sshfs

I agree. I sync my camera folder with Syncthing[1], so as soon as I take a photo it is available on my laptop.

1: https://termux.dev/

As usual don't forget that Android/Linux isn't GNU/Linux,

https://github.com/termux/termux-packages/wiki/Termux-and-An...

https://developer.android.com/ndk/guides/stable_apis

https://android.googlesource.com/platform/bionic/+/master/an...

With this, I was able to cross compile lone for x86_64 from within the Termux environment of my aarch64 smartphone. All I had to do was obtain the Linux user space API headers for x86_64.

I made a Termux package request for multiplatform Linux UAPI headers specifically so I could cross compile lone but unfortunately it was rejected.

https://github.com/termux/termux-packages/issues/16069

I wonder how far you could get with the git client in termux. I got vim running at one point.

[1] https://termux.dev/

[2] https://packages.termux.dev/apt/termux-main/pool/main/g/git/

Crystal can be installed with just pkg install crystal. If you have Docker, you could also clone the build environment and try building Crystal locally with scripts/run-docker.sh scripts/build-package.sh -I -a aarch64 crystal.