Close https://github.com/WebAssembly/wasi-libc/issues/520
Add FTS implementation derived from musl-fts with a few modifications.
The compiled fts.o is included in the libc.a archive, and the fts.h
header is installed in the sysroot (`include/fts.h`).
* fts/musl-fts: Add a copy of the musl-fts sources with modifications.
* fts/patches: A set of patches to apply to the musl-fts sources.
* Upstream pull request: https://github.com/void-linux/musl-fts/pull/14
* fts/update-musl-fts.sh: A script to update the musl-fts sources with
the patches applied.
* fts/config.h: A configuration header included by the musl-fts sources.
* test/smoke: Add a test suite for wasi-libc specific features that
libc-test does not cover.
Per #501, this restores the pre-WASI-SDK-22 behavior of including a copy of
pthread.h for all targets -- not just the `*-threads` targets. This helps
minimize the number of preprocessor guards required to port existing POSIX
software to WASI. It also make it easier for projects using WASI-SDK versions
earlier than 22 to upgrade.
Note that this includes the pthread.h header, but no stub function definitions
to link against. We should probably provide the latter as well, but I'll leave
that for a separate PR.
Signed-off-by: Joel Dice <joel.dice@fermyon.com>
This also includes stubs for `gethostbyname`, `gethostbyaddr`, etc. which were
necessary to get CPython to build. I believe it will be possible to implement
them all properly at some point, but don't have the bandwidth at the moment.
Finally, this includes a few fixes for issues I missed in earlier PRs that
surfaced when running the CPython `asyncio` test suite.
Signed-off-by: Joel Dice <joel.dice@fermyon.com>
Co-authored-by: Dave Bakker <github@davebakker.io>
* implement basic TCP/UDP client support
This implements `socket`, `connect`, `recv`, `send`, etc. in terms of
`wasi-sockets` for the `wasm32-wasip2` target.
I've introduced a new public header file: `__wasi_snapshot.h`, which will define
a preprocessor symbol `__wasilibc_use_wasip2` if using the `wasm32-wasip2`
version of the header, in which case we provide features only available for that
target.
Co-authored-by: Dave Bakker <github@davebakker.io>
Signed-off-by: Joel Dice <joel.dice@fermyon.com>
* fix grammar in __wasi_snapshot.h comment
Co-authored-by: Dan Gohman <dev@sunfishcode.online>
Signed-off-by: Joel Dice <joel.dice@fermyon.com>
---------
Signed-off-by: Joel Dice <joel.dice@fermyon.com>
Co-authored-by: Dave Bakker <github@davebakker.io>
Co-authored-by: Dan Gohman <dev@sunfishcode.online>
* Start renaming preview1 to p1 and preview2 to p2
This is an initial start at renaming the "preview" terminology in WASI
targets to "pX". For example the `wasm32-wasi` target should transition
to `wasm32-wasip1`, `wasm32-wasi-preview2` should transition to
`wasm32-wasip2`, and `wasm32-wasi-threads` should transition to
`wasm32-wasip1-threads`. This commit applies a few renames in the
`Makefile` such as:
* `WASI_SNAPSHOT` is now either "p1" or "p2"
* The default p2 target triple is now `wasm32-wasip2` instead of
`wasm32-wasi-preview2` (in the hopes that it's early enough to change
the default).
* Bindings for WASIp2 were renamed from "preview2" terminology to "wasip2".
* The expected-defines files are renamed and the logic of which
expectation was used has been updated slightly.
With this commit the intention is that non-preview2 defaults do not
change. For example the default build still produces a `wasm32-wasi`
sysroot. If `TARGET_TRIPLE=wasm32-wasip1` is passed, however, then that
sysroot is produced instead. Similarly a `THREAD_MODEL=posix` build
produces a `wasm32-wasi-threads` sysroot target but you can now also
pass `TARGET_TRIPLE=wasm32-wasip1-threads` to rename the sysroot.
My hope is to integrate this into the wasi-sdk repository and build a
dual sysroot for these new targets for a release or two so both are
supported and then in the future the defaults can be switched away from
`wasm32-wasi` to `wasm32-wasip1` as built-by-default.
* Update builds in CI
* Update test workflow
* Fix test for wasm32-wasip1-threads
* Make github actions rules a bit more readable
