Newlib is a C library intended for use on embedded systems.

Newlib - Zephyr RTOS Support Development Branch

newlib patch-set repo (contains Besta RTOS platform support i.e. sys/muteki, as well as various patches that work around quirks in Besta RTOS or sys/muteki)

A fork of newlib with MRISC32 support

Unofficial mirror of sourceware newlib repository with additional aplus bits

Unikraft port of newlib, a C standard library

Fork of the Newlib C library

Unstripped toolchain for source-level debugging into the runtime libraries

A toy project to demonstrate integration of stdlib to bare metal systems

cygwin newlib mirror

A legacy GNU toolchain that includes binutils, gcc, gpc, gdb, and newlib. While primarily intended for building a cross-toolchain targeting Hitachi/Renesas H8/300 processors with the COFF (or, colloquially, HMS) format, this should work for other targets as well.

Cross-Compiler (gcc), Binary Utilities (binutils), and C library (newlib) toolchain for Embedded Systems (refactored from sunflower-simulator)

crosscompiler toolchain for newlib, currently targeting knuth's mmix CPU architecture and simulator, and PSP

A convenient makefile that builds GCC cross-toolchains for many different platforms.

newlib port of pic30 arch (Microchip PIC24/dsPIC33s)

Support for working with float in STM32 in conjunction with FreeRTOS

A simple but complete full-system x86 emulator designed for teaching.

An umbrella repository for Rust std on PlayStation Vita with newlib

simple optimized startup code

Unikraft port of newlib, a C standard library