illumos-gate
glibc
illumos-gate | glibc | |
---|---|---|
30 | 25 | |
1,531 | 1,228 | |
0.6% | - | |
9.6 | 0.0 | |
5 days ago | over 5 years ago | |
C | C | |
- | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
illumos-gate
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eBPF Documentary
It may become a footnote on Linux, but Linux isn't the only system out there -- and DTrace remains alive and well in many systems (not least in its reference implementation in illumos[0]).
[0] https://github.com/illumos/illumos-gate
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Oxide Computer releases distribution of illumos intended to power the Oxide Rack
Nobody's paid to have it pass Open Group Unix Branding certification tests
https://www.opengroup.org/openbrand/register/
so it can't use the UNIX™ trade mark.
But it's got the AT&T Unix kernel & userland sources contained in it.
PDP-11 Unix System III: https://www.tuhs.org/cgi-bin/utree.pl?file=SysIII/usr/src/ut...
IllumOS: https://github.com/illumos/illumos-gate/blob/b8169dedfa435c0...
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In OpenZFS and Btrfs, everyone was just guessing
> it seems like this bug might actually date back to the very beginning of ZFS with Sun
Looks like you might be right about that. The oldest commit referenced in the fix [0] was from 2006[1], which was just months after Sun released ZFS.
[0] https://github.com/openzfs/zfs/pull/15571
[1] https://github.com/illumos/illumos-gate/commit/c543ec060d
- Getaddrinfo() on glibc calls getenv(), oh boy
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Grokking AVL and RAVL Trees
It could be good for in memory stores / log-structured merged trees / other data store applications although it isn't used much now-days. I find them simpler to implement and understand than red-black trees -- although that's a matter of taste I suppose. They beat red-black trees in read-heavy loads (i.e. writes / updates are more costly for AVL trees than for Red-Black trees although they beat R-B trees for read-heavy loads). You can find another implementation in Illumos (an open source Unix operating system) available here: https://github.com/illumos/illumos-gate/blob/master/usr/src/...
- Classic Unix Code Available as FLOSS (Free/Libre/Open Source Software)
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OpenIndiana
It's high time that the Illumos developers patched https://github.com/illumos/illumos-gate/blob/master/usr/src/... and https://github.com/illumos/illumos-gate/blob/master/usr/src/... to just set the error flag and return, and made the #ifndef TIOCSTI path in https://github.com/illumos/illumos-gate/blob/master/usr/src/... the only path.
Because by the looks of https://github.com/illumos/illumos-gate/blob/7c478bd95313f5f... the C shell was fixed years ago.
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Can SGI’s Enthusiast Community Bring IRIX Back to Life?
People are still actively working on Illumos. The last change was yesterday morning.
* https://illumos.org
People are still actively working on MirBSD. There's a CVS commit account that can be followed on the FediVerse.
* http://www.mirbsd.org
It's DragonFly BSD, not Dragon BSD, and the irony of that is that you missed FreeBSD, which is of course still going.
* https://dragonflybsd.org
* https://freebsd.org
As is GhostBSD, which tracks FreeBSD.
* https://ghostbsd.org
HardenedBSD is still going. Shawn Webb regularly talks about it on the FediVerse.
* https://hardenedbsd.org
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Linux distributions' relative popularity over time (by Distrowatch hits)
Its successor is still out there: Illumos. Though it seems to be mainly focused on backwards compatibility for existing custom applications as it still enforces things like an 8 character username limit.
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Use a BSD style license for your Open Source Project (2021)
> Since then, illumos has rewritten all those components
But apparently kept the same license?
>> Most of the existing code is licensed under the CDDL and we expect new code will generally be under this license as well.[0]
[0] https://github.com/illumos/illumos-gate
glibc
- `Strlen` in Glibc
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How does sqrt() work in glibc?
I am writing a short paper for school and the topic is Fast Inverse Square Root and alternatives. One of the questions is how the sqrt-function is implemented in glibc. Here is the code of that function.
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A collection of lock-free data structures written in standard C++11
The code isn't the easiest to read but in glibc it seems that the syscall is only performed if waiter are detected in userspace during an unlock operation
https://github.com/lattera/glibc/blob/master/nptl/pthread_mu...
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Converting my new code (Bytearray2Float64) into 19 Programming Language
You might still not realize, but floats are a large topic. Have a look at eg. this implementation here: https://github.com/lattera/glibc/blob/master/stdlib/strtod_l.c
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Honest question about this "The byte order fallacy" blog post.
This is a nice write up, thank you. However, I'm stilling interpreting this as a "fun trick" rather than the common sense method for solving the problem. For example, looking at the source code for htonl() from glibc: https://github.com/lattera/glibc/blob/master/inet/htonl.c
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Dio deleted the tweet shortly after
Second of all: The horrifying truth is that there is no such thing as a canonical text representation for IPv4 (source) (and yes... I am indeed citing the failed attempt to standardize this as my source for it not being standardized). Authoritatively speaking, all possible (non-binary) representations are equally invalid. In fact, text address resolution is typically delegated to the OS kernel, so what constitutes a "usable" address is liable to vary depending on if you're using Linux, OSX, Windows, or Other.
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Discussion Thread
Optimized code gets really weird. The creators of strlen, for example, decided that iterating over each character to find the end was far too slow. So instead, they convert the character pointer into an int pointer and do bitwise manipulation with the int on two different magic numbers so they can check four/eight characters at once.
- Tengo una duda en algo C/C++
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How does jvm deal with syscalls
If you're using a cross-platform C compiler like gcc or clang, you're usually expected to switch to assembly. Here's the syscall instruction in glibc
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Math Functions with -nostdlib
Maybe you should include the math part of a libc statically with your code. glibc is one option, or dietlibc if you want it to be as small as possible.
What are some alternatives?
linux - Linux kernel source tree
DirectXMath - DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps
linux - Kernel source tree for Raspberry Pi-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://forums.raspberrypi.com/
fastapprox - Approximate and vectorized versions of common mathematical functions
orbiter - Open-source repository of Orbiter Space Flight Simulator
openlibm - High quality system independent, portable, open source libm implementation
awesome-space - 🛰️🚀A list of awesome space-related packages and resources maintained by The Orbital Index
libjxl - JPEG XL image format reference implementation
unix-v6 - UNIX 6th Edition Kernel Source Code
nixpkgs - Nix Packages collection & NixOS
NeptuneOS - Neptune OS: A Windows NT personality for the seL4 microkernel
crux - General purpose bitemporal database for SQL, Datalog & graph queries. Backed by @juxt [Moved to: https://github.com/xtdb/xtdb]