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Add more WASI libc bindings #1325

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merged 14 commits into from Apr 25, 2019
Merged

Add more WASI libc bindings #1325

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58ba812
Add more WASI libc bindings.
sunfishcode Apr 19, 2019
1168782
Define WASI libc errno constants.
sunfishcode Apr 19, 2019
3aa0188
Add headers for WASI to libc-test/build.rs
sunfishcode Apr 19, 2019
30ed983
Recognize WASI as either a target_env or a target_os.
sunfishcode Apr 19, 2019
49c0dc9
Don't add "struct" to "DIR" or "fd_set".
sunfishcode Apr 19, 2019
6b524b3
Don't make opaque types like FILE and DIR copyable.
sunfishcode Apr 19, 2019
a625c69
Make FD_ISSET's argument a pointer to const, to match the libc declar…
sunfishcode Apr 19, 2019
ef7ae73
Fix dirent to match WASI libc's definition.
sunfishcode Apr 19, 2019
8a5b230
Update to the latest wasi-sysroot.
sunfishcode Apr 24, 2019
edd541e
Remove FD_SET and related functions for now.
sunfishcode Apr 24, 2019
4d0e84b
Use the WASI layout for fd_set.
sunfishcode Apr 24, 2019
7ba5e34
Remove the definition of ULONG_SIZE which is no longer needed.
sunfishcode Apr 24, 2019
599c0f7
Remove fd_set, select, and pselect entirely for now.
sunfishcode Apr 24, 2019
13ddc16
Remove utsname and uname for now too.
sunfishcode Apr 24, 2019
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2 changes: 1 addition & 1 deletion ci/docker/wasm32-unknown-wasi/Dockerfile
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Expand Up @@ -28,7 +28,7 @@ RUN mv /clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-18.04 /wasmcc
# those breaking changes on `libc`'s own CI
RUN git clone https://github.com/CraneStation/wasi-sysroot && \
cd wasi-sysroot && \
git reset --hard e5f14be38362f1ab83302895a6e74b2ffd0e2302
git reset --hard 2201343c17b7149a75f543f523bea0c3243c6091
RUN make -C wasi-sysroot install -j $(nproc) WASM_CC=/wasmcc/bin/clang INSTALL_DIR=/wasi-sysroot

# This is a small wrapper script which executes the actual clang binary in
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17 changes: 16 additions & 1 deletion libc-test/build.rs
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Expand Up @@ -1875,17 +1875,28 @@ fn test_wasi(target: &str) {
cfg.define("_GNU_SOURCE", None);

headers! { cfg:
"ctype.h",
"dirent.h",
"errno.h",
"fcntl.h",
"limits.h",
"locale.h",
"malloc.h",
"poll.h",
"stdbool.h",
"stddef.h",
"stdint.h",
"stdio.h",
"stdlib.h",
"string.h",
"sys/resource.h",
"sys/select.h",
"sys/socket.h",
"sys/stat.h",
"sys/times.h",
"sys/types.h",
"sys/uio.h",
"sys/utsname.h",
"time.h",
"unistd.h",
"wasi/core.h",
Expand All @@ -1895,7 +1906,7 @@ fn test_wasi(target: &str) {
}

cfg.type_name(move |ty, is_struct, is_union| match ty {
"FILE" => ty.to_string(),
"FILE" | "fd_set" | "DIR" => ty.to_string(),
t if is_union => format!("union {}", t),
t if t.starts_with("__wasi") && t.ends_with("_u") => {
format!("union {}", t)
Expand All @@ -1920,5 +1931,9 @@ fn test_wasi(target: &str) {
// import the same thing but have different function pointers
cfg.skip_fn_ptrcheck(|f| f.starts_with("__wasi"));

// d_name is declared as a flexible array in WASI libc, so it
// doesn't support sizeof.
cfg.skip_field(|s, field| s == "dirent" && field == "d_name");

cfg.generate("../src/lib.rs", "main.rs");
}
2 changes: 1 addition & 1 deletion src/lib.rs
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Expand Up @@ -112,7 +112,7 @@ cfg_if! {
} else if #[cfg(all(target_env = "sgx", target_vendor = "fortanix"))] {
mod sgx;
pub use sgx::*;
} else if #[cfg(target_env = "wasi")] {
} else if #[cfg(any(target_env = "wasi", target_os = "wasi"))] {
mod wasi;
pub use wasi::*;
} else {
Expand Down