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6cddc9250b
wasi-libc/libc-bottom-half
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Dan Gohman 6cddc9250b Implement truncate(2). 
This adds a simple implementation of truncate in terms of open and
ftruncate.
2019-05-15 11:53:11 -07:00
..
cloudlibc Switch from the cloudlibc inet_pton etc. to the musl versions. 2019-05-09 09:10:57 -07:00
crt Ensure that environ is always initialized. 2019-05-07 11:35:48 -07:00
headers Move the mode_t macros into their own header. 2019-05-10 12:37:49 -07:00
libpreopen Update to libpreopen 8835639f27fc42d32096d59d294a0bbb857dc368. 2019-05-09 09:16:56 -07:00
mman use ENOMEM instead of EINVAL, set EINVAL if length == 0 2019-05-06 09:46:36 -07:00
sources Implement truncate(2). 2019-05-15 11:53:11 -07:00
README.md Update to libpreopen 8835639f27fc42d32096d59d294a0bbb857dc368. 2019-05-09 09:16:56 -07:00

README.md

"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 b29e9287cc75a7db7291ce3eb468a3d2bad8ceb1

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.