There are 10 repositories under libc topic.
build-once run-anywhere c library
Tiny, fast, non-dependent and fully loaded printf implementation for embedded systems. Extensive test suite passing.
The best tool for finding one gadget RCE in libc.so.6
Build a database of libc offsets to simplify exploitation
Linux LD_PRELOAD rootkit (x86 and x86_64 architectures)
The development kit for over a hundred z80 family machines - c compiler, assembler, linker, libraries.
The smallest public printf implementation for its feature set.
Ghost, a micro-kernel based hobby operating system for the x86 architecture.
libc targeted for embedded systems usage. Reduced set of functionality (due to embedded nature). Chosen for portability and quick bringup.
source code of The Standard C Library, by Plauger
A thorough library database to assist with binary exploitation tasks.
Embedded systems memory management library. Implementations for malloc(), free(), and other useful memory management functions
Dennix is a unix-like hobbyist operating system written from scratch.
A simple example to show how cosmopolitan libc can be used with Nim
Hardened Android standard C library. Some of the past hardening has not yet been ported from Marshmallow, Nougat and Oreo to this Android Pie repository. Most is available via archived tags in https://github.com/AndroidHardeningArchive/platform_bionic (check both the most recent Oreo and Nougat tags).
A tool for finding the one gadget RCE in libc
tiny cross-platform socket API library
ld_preload userland rootkit
Node.js module to detect details of the C standard library (libc) implementation provided by a given Linux system
A c standard system library with a focus on size, headeronly, "singlefile", intended for static linking. 187 Bytes for "Hello World"(regular elf), compiled with the standard gcc toolchain.
Source code pack from http://www.apuebook.com/, plus fixes for easy teaching/learning (OSX)