lutoma @lutoma@chaos.social

Attempting to understand bash internals. It's going… okay.

Also added support for pipes and managed to integrate PicoTCP into the kernel (ran in userland before). I have a very limited BSD socket API layer right now, but I still managed to get a "telnet" server working.

Next up, porting dropbear 😎

Got bash ported! No more dash. 🎉 Still buggy af, but getting there. #osdev

✅ Userland signal handling #osdev

I guess it's officially GNU/Xelix now. 😅 #osdev

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Status. Send help

Xelix news: Managed to fix the PCI issues I've been having (by making PCI interrupts non-reentrant for now), wrote a driver for Ne2000 NICs and hooked that up to PicoTCP.

Suddenly: Internet! Next up, figuring out how to expose all this properly as BSD sockets in userland.

https://github.com/lutoma/xelix/commit/ecebb05c2c726e8b78330553d085f2b108e48a0e #osdev

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Added the unlink() syscall. 😈 Delete everything! #osdev #xelix

Tried booting Xelix in VirtualBox for the first time in ages. Looks like it's not very happy with the new interrupt handling. I think it fires a nested interrupt right after initialization where QEMU doesn't, and that triggers one of the several reentrancy issues still scattered throughout the code. #osdev

In related news, spent a lot of time making context switching more stable and improving the ext2 driver recently. Ported pciutils/lspci earlier today and it's starting to feel like a real UNIX™. #osdev

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Well I guess at least the page fault handler works. Now to find out what corrupts task memory. I'm 90% certain it's because I'm not allocating the stack properly, but who knows. #osdev