krf vs ltp

krf

A kernelspace syscall interceptor and randomized faulter (by trailofbits)

#linux-kernel #fault-injection #syscalls #Freebsd #HacktoberFest

Source Code

blog.trailofbits.com

ltp

Linux Test Project http://linux-test-project.github.io/ (by linux-test-project)

#C #Linux #linux-kernel #test-automation #Unix #Posix #syscalls #linux-test #ltp #Libc

Source Code

lists.linux.it

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krf		ltp
	Project
1	Mentions	6
337	Stars	2,152
0.3%	Growth	1.2%
10.0	Activity	9.3
2 months ago	Latest Commit	4 days ago
C	Language	C
GNU General Public License v3.0 only	License	GNU General Public License v3.0 only

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.

krf

Posts with mentions or reviews of krf. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-04-14.

Searchable Linux Syscall Table for x86 and x86_64
7 projects | news.ycombinator.com | 14 Apr 2023

This is an old resource, but one that helped me out a lot when writing a fault injection tool for Linux[1].
[1]: https://github.com/trailofbits/krf

ltp

Posts with mentions or reviews of ltp. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-11-25.

Ask HN: Why the Linux Kernel doesn't have unit tests?
8 projects | news.ycombinator.com | 25 Nov 2022

There are tests, they're just out of tree, focused on integration rather than unit, and very decentralized. You'll get nastygrams on lkml if you break them.
Here's one prominent example: https://github.com/linux-test-project/ltp

8 projects | news.ycombinator.com | 25 Nov 2022
Uncle Bob and Silver Bullets
5 projects | news.ycombinator.com | 4 Jul 2022
Needs Some Heavy Checking
4 projects | news.ycombinator.com | 9 Feb 2022

It's not in the codebase proper, but the Linux Test Project https://github.com/linux-test-project/ltp is probably a good place to start to see what's currently being tested for a syscall and to add new tests if there's a gap. https://github.com/linux-test-project/ltp/tree/master/testca... is some tests of this particular syscall.

What are some alternatives?

When comparing krf and ltp you can also consider the following projects:

linux - Linux kernel source tree

Melang - A script language of time-sharing scheduling coroutine in single thread

embassy - Modern embedded framework, using Rust and async.

XRT - Xilinx Run Time for FPGA

dtrace-utils - DTrace-utils contains the DTrace port to Linux

Huawei-WMI - Huawei WMI laptop extras linux driver

fitnesse - FitNesse -- The Acceptance Test Wiki

Understanding-Unix-Linux-Programming - Source code of Understanding Unix/Linux Programming. The book provides example code in C, I would like to replicate it in Rust.

src - Read-only git conversion of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.

more-speech - A Nostr browser in Clojure.

blink - tiniest x86-64-linux emulator

nullfsvfs - a virtual black hole file system that behaves like /dev/null

ltp vs Understanding-Unix-Linux-Programming