WASI Libc is a libc for WebAssembly programs built on top of WASI system
calls. It provides a wide array of POSIX-compatible C APIs, including
support for standard I/O, file I/O, filesystem manipulation, memory
management, time, string, environment variables, program startup, and
many other APIs.
this is one of the requirements to enable wasm sandboxing for bundled
libraries in firefox via rlbox, cf https://hacks.mozilla.org/2021/12/webassembly-and-back-again-fine-grained-sandboxing-in-firefox-95/
ok sthen@
024869a18e