Working Towards a Common C Library for Small RISC V Systems

on YouTube ↗21m

" summary

PicoLibc merges Newlib string/math code with a tiny AVR stdio to create a C library for tiny RISC-V systems, replaces Newlib TLS with modern TLS, adds startup/linker scripts and semihosting support so binaries can run under QEMU with debugger I/O. The build targets 31 RISC-V ISA/ABI combos, the Newlib test suite of 74,000 tests runs under QEMU after about a dozen fixes, and a hello world image is just 886 bytes ROM and ~34 bytes RAM. The code is BSD licensed.

AI-written summary · about

" chapters (8)

1. 0:00Introduction to Pico Lib C
2. 1:15Design and development
3. 3:33TLS and startup features
4. 5:04Implementing semihosting
5. 7:27Testing and validation
6. 9:49Example and usage
7. 13:31Demo and workflow
8. 18:09Q&A session

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