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Add support for wasi_snapshot_preview1. (#592)

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* Add support for wasi_snapshot_preview1.

This adds support for the new ABI, while preserving compatibility
support for the old ABI.

* Fix compilation on platforms where nlink_t isn't 64-bit.

* rustfmt

* Fix Windows build errors.
This commit is contained in:
Dan Gohman
2019-11-18 22:07:16 -08:00
committed by GitHub
parent 39e57e3e9a
commit d645902620
83 changed files with 9928 additions and 803 deletions
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22
crates/wasi-common/src/host.rs
View File

@@ -8,7 +8,7 @@ use crate::wasi::*;
use std::{io, slice};
use wig::witx_host_types;
witx_host_types!("unstable" "wasi_unstable_preview0");
witx_host_types!("snapshot" "wasi_snapshot_preview1");
pub(crate) unsafe fn ciovec_to_host(ciovec: &__wasi_ciovec_t) -> io::IoSlice {
let slice = slice::from_raw_parts(ciovec.buf as *const u8, ciovec.buf_len);
@@ -60,23 +60,23 @@ mod test {
#[test]
fn bindgen_test_layout___wasi_prestat_t___wasi_prestat_u___wasi_prestat_u_dir_t() {
assert_eq!(
::std::mem::size_of::<__wasi_prestat_dir>(),
::std::mem::size_of::<__wasi_prestat_dir_t>(),
8usize,
concat!("Size of: ", stringify!(__wasi_prestat_dir))
concat!("Size of: ", stringify!(__wasi_prestat_dir_t))
);
assert_eq!(
::std::mem::align_of::<__wasi_prestat_dir>(),
::std::mem::align_of::<__wasi_prestat_dir_t>(),
8usize,
concat!("Alignment of ", stringify!(__wasi_prestat_dir))
concat!("Alignment of ", stringify!(__wasi_prestat_dir_t))
);
assert_eq!(
unsafe {
&(*(::std::ptr::null::<__wasi_prestat_dir>())).pr_name_len as *const _ as usize
&(*(::std::ptr::null::<__wasi_prestat_dir_t>())).pr_name_len as *const _ as usize
},
0usize,
concat!(
"Offset of field: ",
stringify!(__wasi_prestat_dir),
stringify!(__wasi_prestat_dir_t),
"::",
stringify!(pr_name_len)
)
@@ -86,21 +86,21 @@ mod test {
#[test]
fn bindgen_test_layout___wasi_prestat_t___wasi_prestat_u() {
assert_eq!(
::std::mem::size_of::<__wasi_prestat_u>(),
::std::mem::size_of::<__wasi_prestat_u_t>(),
8usize,
concat!("Size of: ", stringify!(__wasi_prestat_u))
);
assert_eq!(
::std::mem::align_of::<__wasi_prestat_u>(),
::std::mem::align_of::<__wasi_prestat_u_t>(),
8usize,
concat!("Alignment of ", stringify!(__wasi_prestat_u))
);
assert_eq!(
unsafe { &(*(::std::ptr::null::<__wasi_prestat_u>())).dir as *const _ as usize },
unsafe { &(*(::std::ptr::null::<__wasi_prestat_u_t>())).dir as *const _ as usize },
0usize,
concat!(
"Offset of field: ",
stringify!(__wasi_prestat_u),
stringify!(__wasi_prestat_u_t),
"::",
stringify!(dir)
)