stabbles

26 ms·

391.
by stabbles 4y ago
You'll be happy to learn that Python's builtin tarfile module extracts and overwrites `../parent/paths` and `/absolute/paths` at those locations. Never use Python.
392.
by stabbles 4y ago
Pretty sure there's tons of C libraries that do not use hash maps because it requires implementing a hash map.
393.
by stabbles 4y ago
It's not the same, libc's tolower takes an int as an individual character
394.
by stabbles 4y ago
From mold I learned this amazing trick of intercepting the exec() family through LD_PRELOAD. I was experimenting with it in the Spack package manager to force a uniform compiler and linker, and let it inject flags. Useful since packages som
395.
by stabbles 5y ago
The point is not about parallelization, it's that nixery has to optimize for cache reuse, which is an artificial problem created by docker. If you have two layers installing an individual packages like /nix/store/x and &
396.
by stabbles 5y ago
I like how they optimize for layer reuse, but at the same time, nix doesn't really fit docker layer caching because it's better. With a unique prefix per package, you don't need stacking of layers. You can just download a bun
397.
by stabbles 5y ago
I don't understand how GNU finds this acceptable...
398.
by stabbles 5y ago
Depends on your libc. Search order: glibc: rpath > LD_LIBRARY_PATH > runpath > ld.so.cache > default paths. musl: LD_LIBRARY_PATH > rpath=runpath > default paths. Search path inheritance: glibc: rpaths are inherited: When
399.
by stabbles 5y ago
> The actual location will usually be /usr/lib64/libfoo.so Usually indeed, for distro's that pretty much support one single version of every library. But this is no longer true for Nix, Spack, Gentoo Prefix and Guix,
400.
by stabbles 5y ago
In Nix and friends, they don't do relocation at all. So you know where the libs are on everybody's filesystem.
401.
by stabbles 5y ago
> Letting libfoo.so.1 link to libfoo.so.1.x is a huge feature. Locking in an explicit minor version would defeat the entire purpose of dynamic linking. My suggestion is to continue copying the SONAME into DT_NEEDED, and record the dir
402.
by stabbles 5y ago
Linux usually (by convention) provides 1 file and 2 symlinks per lib: liba.so -> liba.so.x -> liba.so.j.k.l. The first one is to make the linker (ld) happy: -la will look for liba.so. The linker puts the SONAME (liba.so.x) in DT_NEEDE
403.
by stabbles 5y ago
I've tried alpine's gcc before and it was about 50% slower to compile a bunch of packages. That said, if you compile llvm with MinSize/-Os on glibc distro's it runs 50% slower too, so it's unclear if slowdown is due
404.
by stabbles 5y ago
It seems though that glibc was inspired by musl to move away from many small shared libraries to a single one, namely the dynamic linker executable also being lib{c,m,...}. It's not at the same level, but it's progress...
405.
by stabbles 5y ago
My gripe with linkers is: why can't they add the minimal metadata recording the actual paths of the shared libraries an executable or shared library was linked to. You can provide search paths to the linker with -L and LIBRARY_PATH and
406.
by stabbles 5y ago
> The intelligence on the exchange between the Chinese and Russian officials was collected by a Western intelligence service and is considered credible by officials reviewing it, the Times reported.
407.
by stabbles 5y ago
The Russian challenger of the 2021 World Chess Championships Yan Nepomniachtchi publicly disapproves of the Ukraine war: https://twitter.com/lachesisq/status/1497984140075020293
408.
by stabbles 5y ago
Sunrise (about 25% market share in Switzerland) sends out MMS messages with special offers to their customers on a regular basis
409.
by stabbles 5y ago
I recently discovered https://excalidraw.com/ for informal diagrams that work well in presentations
410.
by stabbles 5y ago
How about squashfs files for every layer and overlay mount those. At the end of the day you access probably .1% of the data, so with this you'd defer decompression to runtime and only decompress what you need
411.
by stabbles 5y ago
What will this mean for NVIDIA's Arm based Grace CPU?
412.
by stabbles 5y ago
You might as well try Spack, it's Python + a dsl to customize builds in a single line. Guix package descriptions look very daunting to me. [1] https://github.com/spack/spack/
413.
by stabbles 5y ago
This is what Thomas Kuhn describes as "normal science": fitting observations into the current scientific paradigm.
414.
by stabbles 5y ago
What's kinda neat about musl libc is that the interpreter/runtime linker and libc.so are the same executable, so that if you just dynamically link to libc, it does not need to open ld.so cache or locate and load libc.so.
415.
by stabbles 5y ago
For those saying curl | sh isn't that bad, remember that the codecov script was breached, and attackers used it to upload environment variables containing secrets, and it took months to get noticed [1]. If they had provided a versioned
416.
A curated list of questionable installation instructions(curlsh.com)
15 points by stabbles 5y ago|17 comments
417.
by stabbles 5y ago
The C rewrite was released in libtree 3.0.0
418.
by stabbles 5y ago
https://twitter.com/hypergeometer/status/1470505437934067725
419.
by stabbles 5y ago
C++23 drop the word auto? myLambda = [](&&x){ std::cout << x << '\n'; }; what's the point of having to write auto everywhere
420.
by stabbles 5y ago
I realize how much I miss the #dislikes for videos like these. The title sounds clickbaity and #dislikes would confirm that. I guess it is not clickbait given that it's on hackernews and by the BBC, but if this context was missing...

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