wasi-libc/libc-bottom-half
Dan Gohman 1cbedc6d7e Implement FD_SET, FD_CLR, etc.
Previously, FD_SET and friends were missing their actual definitions.
This provides definitions, entirely within the system headers in a
way that doesn't need instantiated out-of-line definitions.
2019-04-23 15:01:23 -07:00
..
cloudlibc Implement FD_SET, FD_CLR, etc. 2019-04-23 15:01:23 -07:00
crt WASI libc prototype implementation. 2019-03-27 07:59:55 -07:00
headers Implement FD_SET, FD_CLR, etc. 2019-04-23 15:01:23 -07:00
libpreopen Remove capsicum.h; WASI libc doesn't support that API, even internally. 2019-04-23 15:01:05 -07:00
mman WASI libc prototype implementation. 2019-03-27 07:59:55 -07:00
sources Remove socket.c, which was a stub that always failed with ENOSYS. 2019-04-15 09:47:16 -07:00
README.md Update to cloudlibc 8835639f27fc42d32096d59d294a0bbb857dc368. 2019-04-15 09:49:02 -07:00

"WASI" the WebAssembly System Interface.

WASI libc is conceptually the lower half of a traditional libc implementation. It provides C interfaces to the low-level WASI syscalls.

This is largely based on CloudABI, cloudlibc, and libpreopen, however we use just the low-level syscall wrappers rather than all of cloudlibc and libpreopen, and we have several customizations for use in a WebAssembly sysroot.

The upstream repositories and versions used here are:

cloudlibc - https://github.com/NuxiNL/cloudlibc 8835639f27fc42d32096d59d294a0bbb857dc368 libpreopen - https://github.com/musec/libpreopen 8265fc50b9db3730c250597bdd084f1e728f3e48

Whole files which are unused are omitted. Changes to upstream code are wrapped in preprocessor directives controlled by the macro __wasilibc_unmodified_upstream, except that CloudABI names have also been renamed to WASI names without annotations.

WASI libc currently depends on the basics and dlmalloc components of reference-sysroot.