AMD Sends Out Initial GNU Binutils Patch For AMD Zen 6 - Confirms New AVX-512 Features
AMD has begun their open-source compiler enablement upstreaming effort for Zen 6 processors! The first “Znver6” patch was sent out on Friday in preparing for new instructions to be found with these next-generation AMD Ryzen and EPYC processors… ⌘ Read more

Okay, now that I knew what to look for, I found existing bug reports:

• https://lists.gnu.org/archive/html/groff/2023-04/msg00400.html
  
• https://savannah.gnu.org/bugs/?63960
  

Most importantly:

This is resolved in the groff trunk.

🥳

@prologic@twtxt.net No, this is a Linux manpage from the man-pages project: https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/man/man7/ascii.7

I do have an idea what’s going on. Could be an unfortunate interaction between the table preprocessor tbl and the man macro package. 🤔

@lyse@lyse.isobeef.org wouldn’t the PDF version be better? https://www.gnu.org/software/gawk/manual/gawk.pdf

Hmm, gnu.org is slow as heck. Shorter HTML pages load in about ten seconds. This complete AWK manual all in one large HTML page took a full minute: https://www.gnu.org/software/gawk/manual/gawk.html Is there maybe some anti AI shenanigans going on?

In any case, I find the user guide super interesting. My AWK skills are basically non-existent, so I finally decided to change that. This document is incredibly well written and makes it really fun to keep reading and learning. I’m very impressed. So far, I made it to section 1.6, happy to continue.

@prologic@twtxt.net Yes, this is another instance of restricting “personal” computing. You won’t be able to install arbitrary software anymore (“sideloading”, as they call it).

It’s not unique, it’s not new. Boiling the frog alive.

We’re heading towards this: https://www.gnu.org/philosophy/right-to-read.html

mandoc is nicer to read/write than the man macro package and, most importantly, it’s semantic markup.

HTML output is a bit broken in GNU groff, though (OpenBSD on the left, GNU on the right):

https://movq.de/v/f1898e648f/s.png

🤔

Still, I’m inclined to convert my manpages to mandoc.

Another example:

$ setpriv \
    --landlock-access fs \
    --landlock-rule path-beneath:execute,read-file:/bin/ls-static \
    --landlock-rule path-beneath:read-dir:/tmp \
    /bin/ls-static /tmp/tmp/xorg.atom

The first argument --landlock-access fs says that nothing is allowed.

--landlock-rule path-beneath:execute,read-file:/bin/ls-static says that reading and executing that file is allowed. It’s a statically linked ls program (not GNU ls).

--landlock-rule path-beneath:read-dir:/tmp says that reading the /tmp directory and everything below it is allowed.

The output of the ls-static program is this line:

─rw─r──r────x 3000 200 07-12 09:19 22'491 │ /tmp/tmp/xorg.atom

It was able to read the directory, see the file, do stat() on it and everything, the little x indicates that getting xattrs also worked.

3000 and 200 are user name and group name – they are shown as numeric, because the program does not have access to /etc/passwd and /etc/group.

Adding --landlock-rule path-beneath:read-file:/etc/passwd, for example, allows resolving users and yields this:

─rw─r──r────x cathy 200 07-12 09:19 22'491 │ /tmp/tmp/xorg.atom

@bender@twtxt.net The tagline of Timeline is “a single user twtxt/yarn pod” not just a yarn pod. Similar to GNU/Linux. When we came up with the concept of Yarn Social it was a way to rebrand twtxt with the extensions that makes conversations like this possible.

I’m playing around with snac2, which I think @stigatle@yarn.stigatle.no mentioned on here, and I have to say it’s extremely easy to set up and it’s been pretty straightforward so far. I wanted to experiment with having a presence on the Fediverse without going through the process of picking Mastodon vs. Gnu Social vs. Friendica vs. …, and I wanted to self-host instead of picking an instance of one of those. For now I’m abucci@buc.ci, but no guarantees that will remain stable; I’m just testing for the time being.

@movq@www.uninformativ.de
Doesn’t even compile on my system, which is apparently broken:

> cc -Wall -Wextra -o win win.c $(pkg-config --cflags --libs gtk4)                                                                                                        
cc: error: unrecognized argument in option ‘-mfpmath=sse -msse -msse2 -pthread -I/usr/include/gtk-4.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/graphene-1.0 -I/usr/lib/x86_64-linux-gnu/graphene-1.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -lgtk-4 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -lgdk_pixbuf-2.0 -lcairo-gobject -lcairo -lgraphene-1.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0’
cc: note: valid arguments to ‘-mfpmath=’ are: 387 387+sse 387,sse both sse sse+387 sse,387

This was macOS. I don’t really use gnu. Of course, it’s also not on Plan 9, the system I know best.

Posted to Entropy Arbitrage: Small-D date Night https://john.colagioia.net/blog/2020/03/18/date.html #techtips #programming #shell #date #gnu #linux #calendar