commit: 2f69fcdbdca6ae44cc4c8f10d520cc7a19bf78a0
parent 02be7578261296cb45ff4190a9c455182119ed66
Author: Drew DeVault <sir@cmpwn.com>
Date: Tue, 16 Aug 2022 10:26:22 +0200
status update
Diffstat:
1 file changed, 34 insertions(+), 0 deletions(-)
diff --git a/content/blog/Status-update-August-2022.md b/content/blog/Status-update-August-2022.md
@@ -0,0 +1,34 @@
+---
+title: Status update, August 2022
+date: 2022-08-16
+---
+
+It is a blessedly cool morning here in Amsterdam. I was busy moving house
+earlier this month, so this update is a bit quieter than most.
+
+For a fun off-beat project this month, I started working on a [GameBoy
+emulator](https://git.sr.ht/~sircmpwn/hdmg) written in Hare. No promises on when
+it will be functional or how much I plan on working on it -- just doing it for
+fun. In more serious Hare news, I have implemented Thread-Local Storage (TLS)
+for qbe, our compiler backend. Hare's standard library does not support
+multi-threading, but I needed this for Helios, whose driver library does support
+threads. It will also presumably be of use for cproc once it lands upstream.
+
+Speaking of Helios, it received the runtime components for TLS support on
+x86\_64, namely the handling of %fs and its base register MSR in the context
+switch, and updates to the ELF loader for handling .tdata/.tbss sections.
+I have also implemented support for moving and copying capabilities, which will
+be useful for creating new processes in userspace. Significant progress towards
+capability destructors was also made, with some capabilities — pages and
+page tables in particular — being reclaimable now. Next goal is to finish
+up all of this capability work so that you can freely create, copy, move, and
+destroy capabilities, then use all of these features to implement a simple
+shell. There is also some refactoring due at some point soon, so we'll see about
+that.
+
+Other Hare progress has been slow this month, as I'm currently looking at a
+patch queue 123 emails backed up. When I'm able to sit down and get through
+these, we can expect a bunch of updates in short order.
+
+SourceHut news will be covered in the "what's cooking" post later today. That's
+all for now! Thanks for tuning in.
