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Changes to compile in lucet

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This commit is contained in:
Jakub Konka
2019-05-06 08:55:47 +02:00
parent cd39c1dfd8
commit ce6f9cb165
2 changed files with 51 additions and 89 deletions
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4
src/ctx.rs
View File

@@ -12,8 +12,8 @@ use std::os::unix::prelude::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
use std::path::{Path, PathBuf}; use std::path::{Path, PathBuf};
pub trait VmContext { pub trait VmContext {
fn as_wasi_ctx(&self) -> &WasiCtx; fn as_wasi_ctx(&self) -> *const WasiCtx;
fn as_wasi_ctx_mut(&mut self) -> &mut WasiCtx; fn as_wasi_ctx_mut(&mut self) -> *mut WasiCtx;
unsafe fn dec_ptr( unsafe fn dec_ptr(
&mut self, &mut self,

136
src/hostcalls.rs
View File

@@ -30,16 +30,11 @@ const O_RSYNC: nix::fcntl::OFlag = nix::fcntl::OFlag::O_RSYNC;
#[cfg(not(target_os = "linux"))] #[cfg(not(target_os = "linux"))]
const O_RSYNC: nix::fcntl::OFlag = nix::fcntl::OFlag::O_SYNC; const O_RSYNC: nix::fcntl::OFlag = nix::fcntl::OFlag::O_SYNC;
#[no_mangle] pub unsafe fn proc_exit(_vmctx: &mut VmContext, rval: wasm32::__wasi_exitcode_t) -> () {
pub unsafe extern "C" fn __wasi_proc_exit(
_vmctx: &mut VmContext,
rval: wasm32::__wasi_exitcode_t,
) -> () {
std::process::exit(dec_exitcode(rval) as i32); std::process::exit(dec_exitcode(rval) as i32);
} }
#[no_mangle] pub unsafe fn args_get(
pub unsafe extern "C" fn __wasi_args_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
argv_ptr: wasm32::uintptr_t, argv_ptr: wasm32::uintptr_t,
argv_buf: wasm32::uintptr_t, argv_buf: wasm32::uintptr_t,
@@ -49,7 +44,7 @@ pub unsafe extern "C" fn __wasi_args_get(
let mut argv_buf_offset = 0; let mut argv_buf_offset = 0;
let mut argv = vec![]; let mut argv = vec![];
for arg in ctx.args.iter() { for arg in (*ctx).args.iter() {
let arg_bytes = arg.as_bytes_with_nul(); let arg_bytes = arg.as_bytes_with_nul();
let arg_ptr = argv_buf + argv_buf_offset; let arg_ptr = argv_buf + argv_buf_offset;
@@ -76,16 +71,15 @@ pub unsafe extern "C" fn __wasi_args_get(
} }
} }
#[no_mangle] pub unsafe fn args_sizes_get(
pub unsafe extern "C" fn __wasi_args_sizes_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
argc_ptr: wasm32::uintptr_t, argc_ptr: wasm32::uintptr_t,
argv_buf_size_ptr: wasm32::uintptr_t, argv_buf_size_ptr: wasm32::uintptr_t,
) -> wasm32::__wasi_errno_t { ) -> wasm32::__wasi_errno_t {
let ctx = (*vmctx).as_wasi_ctx(); let ctx = (*vmctx).as_wasi_ctx();
let argc = ctx.args.len(); let argc = (*ctx).args.len();
let argv_size = ctx let argv_size = (*ctx)
.args .args
.iter() .iter()
.map(|arg| arg.as_bytes_with_nul().len()) .map(|arg| arg.as_bytes_with_nul().len())
@@ -102,8 +96,7 @@ pub unsafe extern "C" fn __wasi_args_sizes_get(
wasm32::__WASI_ESUCCESS wasm32::__WASI_ESUCCESS
} }
#[no_mangle] pub unsafe fn clock_res_get(
pub unsafe extern "C" fn __wasi_clock_res_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
clock_id: wasm32::__wasi_clockid_t, clock_id: wasm32::__wasi_clockid_t,
resolution_ptr: wasm32::uintptr_t, resolution_ptr: wasm32::uintptr_t,
@@ -145,8 +138,7 @@ pub unsafe extern "C" fn __wasi_clock_res_get(
.unwrap_or(wasm32::__WASI_EOVERFLOW) .unwrap_or(wasm32::__WASI_EOVERFLOW)
} }
#[no_mangle] pub unsafe fn clock_time_get(
pub unsafe extern "C" fn __wasi_clock_time_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
clock_id: wasm32::__wasi_clockid_t, clock_id: wasm32::__wasi_clockid_t,
// ignored for now, but will be useful once we put optional limits on precision to reduce side // ignored for now, but will be useful once we put optional limits on precision to reduce side
@@ -183,8 +175,7 @@ pub unsafe extern "C" fn __wasi_clock_time_get(
.unwrap_or(wasm32::__WASI_EOVERFLOW) .unwrap_or(wasm32::__WASI_EOVERFLOW)
} }
#[no_mangle] pub unsafe fn environ_get(
pub unsafe extern "C" fn __wasi_environ_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
environ_ptr: wasm32::uintptr_t, environ_ptr: wasm32::uintptr_t,
environ_buf: wasm32::uintptr_t, environ_buf: wasm32::uintptr_t,
@@ -194,7 +185,7 @@ pub unsafe extern "C" fn __wasi_environ_get(
let mut environ_buf_offset = 0; let mut environ_buf_offset = 0;
let mut environ = vec![]; let mut environ = vec![];
for pair in ctx.env.iter() { for pair in (*ctx).env.iter() {
let env_bytes = pair.as_bytes_with_nul(); let env_bytes = pair.as_bytes_with_nul();
let env_ptr = environ_buf + environ_buf_offset; let env_ptr = environ_buf + environ_buf_offset;
@@ -221,16 +212,15 @@ pub unsafe extern "C" fn __wasi_environ_get(
} }
} }
#[no_mangle] pub unsafe fn environ_sizes_get(
pub unsafe extern "C" fn __wasi_environ_sizes_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
environ_count_ptr: wasm32::uintptr_t, environ_count_ptr: wasm32::uintptr_t,
environ_size_ptr: wasm32::uintptr_t, environ_size_ptr: wasm32::uintptr_t,
) -> wasm32::__wasi_errno_t { ) -> wasm32::__wasi_errno_t {
let ctx = (*vmctx).as_wasi_ctx(); let ctx = (*vmctx).as_wasi_ctx();
let environ_count = ctx.env.len(); let environ_count = (*ctx).env.len();
if let Some(environ_size) = ctx.env.iter().try_fold(0, |acc: u32, pair| { if let Some(environ_size) = (*ctx).env.iter().try_fold(0, |acc: u32, pair| {
acc.checked_add(pair.as_bytes_with_nul().len() as u32) acc.checked_add(pair.as_bytes_with_nul().len() as u32)
}) { }) {
unsafe { unsafe {
@@ -247,20 +237,16 @@ pub unsafe extern "C" fn __wasi_environ_sizes_get(
} }
} }
#[no_mangle] pub unsafe fn fd_close(vmctx: *mut VmContext, fd: wasm32::__wasi_fd_t) -> wasm32::__wasi_errno_t {
pub unsafe extern "C" fn __wasi_fd_close( let ctx = (*vmctx).as_wasi_ctx_mut();
vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t,
) -> wasm32::__wasi_errno_t {
let mut ctx = (*vmctx).as_wasi_ctx_mut();
let fd = dec_fd(fd); let fd = dec_fd(fd);
if let Some(fdent) = ctx.fds.get(&fd) { if let Some(fdent) = (*ctx).fds.get(&fd) {
// can't close preopened files // can't close preopened files
if fdent.preopen_path.is_some() { if fdent.preopen_path.is_some() {
return wasm32::__WASI_ENOTSUP; return wasm32::__WASI_ENOTSUP;
} }
} }
if let Some(mut fdent) = ctx.fds.remove(&fd) { if let Some(mut fdent) = (*ctx).fds.remove(&fd) {
fdent.fd_object.needs_close = false; fdent.fd_object.needs_close = false;
match nix::unistd::close(fdent.fd_object.rawfd) { match nix::unistd::close(fdent.fd_object.rawfd) {
Ok(_) => wasm32::__WASI_ESUCCESS, Ok(_) => wasm32::__WASI_ESUCCESS,
@@ -271,8 +257,7 @@ pub unsafe extern "C" fn __wasi_fd_close(
} }
} }
#[no_mangle] pub unsafe fn fd_fdstat_get(
pub unsafe extern "C" fn __wasi_fd_fdstat_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
fdstat_ptr: wasm32::uintptr_t, // *mut wasm32::__wasi_fdstat_t fdstat_ptr: wasm32::uintptr_t, // *mut wasm32::__wasi_fdstat_t
@@ -284,7 +269,7 @@ pub unsafe extern "C" fn __wasi_fd_fdstat_get(
}; };
let ctx = (*vmctx).as_wasi_ctx_mut(); let ctx = (*vmctx).as_wasi_ctx_mut();
let errno = if let Some(fe) = ctx.fds.get(&host_fd) { let errno = if let Some(fe) = (*ctx).fds.get(&host_fd) {
host_fdstat.fs_filetype = fe.fd_object.ty; host_fdstat.fs_filetype = fe.fd_object.ty;
host_fdstat.fs_rights_base = fe.rights_base; host_fdstat.fs_rights_base = fe.rights_base;
host_fdstat.fs_rights_inheriting = fe.rights_inheriting; host_fdstat.fs_rights_inheriting = fe.rights_inheriting;
@@ -308,8 +293,7 @@ pub unsafe extern "C" fn __wasi_fd_fdstat_get(
errno errno
} }
#[no_mangle] pub unsafe fn fd_fdstat_set_flags(
pub unsafe extern "C" fn __wasi_fd_fdstat_set_flags(
vmctx: &mut VmContext, vmctx: &mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
fdflags: wasm32::__wasi_fdflags_t, fdflags: wasm32::__wasi_fdflags_t,
@@ -318,9 +302,9 @@ pub unsafe extern "C" fn __wasi_fd_fdstat_set_flags(
let host_fdflags = dec_fdflags(fdflags); let host_fdflags = dec_fdflags(fdflags);
let nix_flags = host::nix_from_fdflags(host_fdflags); let nix_flags = host::nix_from_fdflags(host_fdflags);
let ctx = vmctx.as_wasi_ctx_mut(); let ctx = (*vmctx).as_wasi_ctx_mut();
if let Some(fe) = ctx.fds.get(&host_fd) { if let Some(fe) = (*ctx).fds.get(&host_fd) {
match nix::fcntl::fcntl(fe.fd_object.rawfd, nix::fcntl::F_SETFL(nix_flags)) { match nix::fcntl::fcntl(fe.fd_object.rawfd, nix::fcntl::F_SETFL(nix_flags)) {
Ok(_) => wasm32::__WASI_ESUCCESS, Ok(_) => wasm32::__WASI_ESUCCESS,
Err(e) => wasm32::errno_from_nix(e.as_errno().unwrap()), Err(e) => wasm32::errno_from_nix(e.as_errno().unwrap()),
@@ -330,8 +314,7 @@ pub unsafe extern "C" fn __wasi_fd_fdstat_set_flags(
} }
} }
#[no_mangle] pub unsafe fn fd_seek(
pub unsafe extern "C" fn __wasi_fd_seek(
vmctx: *mut VmContext, vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
offset: wasm32::__wasi_filedelta_t, offset: wasm32::__wasi_filedelta_t,
@@ -357,7 +340,7 @@ pub unsafe extern "C" fn __wasi_fd_seek(
} else { } else {
host::__WASI_RIGHT_FD_SEEK | host::__WASI_RIGHT_FD_TELL host::__WASI_RIGHT_FD_SEEK | host::__WASI_RIGHT_FD_TELL
}; };
match ctx.get_fd_entry(fd, rights.into(), 0) { match (*ctx).get_fd_entry(fd, rights.into(), 0) {
Ok(fe) => match lseek(fe.fd_object.rawfd, offset, nwhence) { Ok(fe) => match lseek(fe.fd_object.rawfd, offset, nwhence) {
Ok(newoffset) => newoffset, Ok(newoffset) => newoffset,
Err(e) => return wasm32::errno_from_nix(e.as_errno().unwrap()), Err(e) => return wasm32::errno_from_nix(e.as_errno().unwrap()),
@@ -373,8 +356,7 @@ pub unsafe extern "C" fn __wasi_fd_seek(
} }
} }
#[no_mangle] pub unsafe fn fd_prestat_get(
pub unsafe extern "C" fn __wasi_fd_prestat_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
prestat_ptr: wasm32::uintptr_t, prestat_ptr: wasm32::uintptr_t,
@@ -382,7 +364,7 @@ pub unsafe extern "C" fn __wasi_fd_prestat_get(
let ctx = (*vmctx).as_wasi_ctx(); let ctx = (*vmctx).as_wasi_ctx();
let fd = dec_fd(fd); let fd = dec_fd(fd);
// TODO: is this the correct right for this? // TODO: is this the correct right for this?
match ctx.get_fd_entry(fd, host::__WASI_RIGHT_PATH_OPEN.into(), 0) { match (*ctx).get_fd_entry(fd, host::__WASI_RIGHT_PATH_OPEN.into(), 0) {
Ok(fe) => { Ok(fe) => {
if let Some(po_path) = &fe.preopen_path { if let Some(po_path) = &fe.preopen_path {
if fe.fd_object.ty != host::__WASI_FILETYPE_DIRECTORY as host::__wasi_filetype_t { if fe.fd_object.ty != host::__WASI_FILETYPE_DIRECTORY as host::__wasi_filetype_t {
@@ -413,8 +395,7 @@ pub unsafe extern "C" fn __wasi_fd_prestat_get(
} }
} }
#[no_mangle] pub unsafe fn fd_prestat_dir_name(
pub unsafe extern "C" fn __wasi_fd_prestat_dir_name(
vmctx: *mut VmContext, vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
path_ptr: wasm32::uintptr_t, path_ptr: wasm32::uintptr_t,
@@ -422,10 +403,7 @@ pub unsafe extern "C" fn __wasi_fd_prestat_dir_name(
) -> wasm32::__wasi_errno_t { ) -> wasm32::__wasi_errno_t {
let fd = dec_fd(fd); let fd = dec_fd(fd);
match (*vmctx) match (*(*vmctx).as_wasi_ctx()).get_fd_entry(fd, host::__WASI_RIGHT_PATH_OPEN.into(), 0) {
.as_wasi_ctx()
.get_fd_entry(fd, host::__WASI_RIGHT_PATH_OPEN.into(), 0)
{
Ok(fe) => { Ok(fe) => {
if let Some(po_path) = &fe.preopen_path { if let Some(po_path) = &fe.preopen_path {
if fe.fd_object.ty != host::__WASI_FILETYPE_DIRECTORY as host::__wasi_filetype_t { if fe.fd_object.ty != host::__WASI_FILETYPE_DIRECTORY as host::__wasi_filetype_t {
@@ -448,8 +426,7 @@ pub unsafe extern "C" fn __wasi_fd_prestat_dir_name(
} }
} }
#[no_mangle] pub unsafe fn fd_read(
pub unsafe extern "C" fn __wasi_fd_read(
vmctx: *mut VmContext, vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
iovs_ptr: wasm32::uintptr_t, iovs_ptr: wasm32::uintptr_t,
@@ -464,8 +441,8 @@ pub unsafe extern "C" fn __wasi_fd_read(
Err(e) => return enc_errno(e), Err(e) => return enc_errno(e),
}; };
let mut ctx = (*vmctx).as_wasi_ctx_mut(); let ctx = (*vmctx).as_wasi_ctx_mut();
let fe = match ctx.get_fd_entry(fd, host::__WASI_RIGHT_FD_READ.into(), 0) { let fe = match (*ctx).get_fd_entry(fd, host::__WASI_RIGHT_FD_READ.into(), 0) {
Ok(fe) => fe, Ok(fe) => fe,
Err(e) => return enc_errno(e), Err(e) => return enc_errno(e),
}; };
@@ -482,7 +459,7 @@ pub unsafe extern "C" fn __wasi_fd_read(
if host_nread == 0 { if host_nread == 0 {
// we hit eof, so remove the fdentry from the context // we hit eof, so remove the fdentry from the context
let mut fe = ctx.fds.remove(&fd).expect("file entry is still there"); let mut fe = (*ctx).fds.remove(&fd).expect("file entry is still there");
fe.fd_object.needs_close = false; fe.fd_object.needs_close = false;
} }
@@ -493,8 +470,7 @@ pub unsafe extern "C" fn __wasi_fd_read(
} }
} }
#[no_mangle] pub unsafe fn fd_write(
pub unsafe extern "C" fn __wasi_fd_write(
vmctx: *mut VmContext, vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
iovs_ptr: wasm32::uintptr_t, iovs_ptr: wasm32::uintptr_t,
@@ -510,7 +486,7 @@ pub unsafe extern "C" fn __wasi_fd_write(
}; };
let ctx = (*vmctx).as_wasi_ctx(); let ctx = (*vmctx).as_wasi_ctx();
let fe = match ctx.get_fd_entry(fd, host::__WASI_RIGHT_FD_WRITE.into(), 0) { let fe = match (*ctx).get_fd_entry(fd, host::__WASI_RIGHT_FD_WRITE.into(), 0) {
Ok(fe) => fe, Ok(fe) => fe,
Err(e) => return enc_errno(e), Err(e) => return enc_errno(e),
}; };
@@ -532,8 +508,7 @@ pub unsafe extern "C" fn __wasi_fd_write(
} }
} }
#[no_mangle] pub unsafe fn path_open(
pub unsafe extern "C" fn __wasi_path_open(
vmctx: *mut VmContext, vmctx: *mut VmContext,
dirfd: wasm32::__wasi_fd_t, dirfd: wasm32::__wasi_fd_t,
dirflags: wasm32::__wasi_lookupflags_t, dirflags: wasm32::__wasi_lookupflags_t,
@@ -659,7 +634,7 @@ pub unsafe extern "C" fn __wasi_path_open(
let mut fe = unsafe { FdEntry::from_raw_fd(new_fd) }; let mut fe = unsafe { FdEntry::from_raw_fd(new_fd) };
fe.rights_base &= max_base; fe.rights_base &= max_base;
fe.rights_inheriting &= max_inheriting; fe.rights_inheriting &= max_inheriting;
match (*vmctx).as_wasi_ctx_mut().insert_fd_entry(fe) { match (*(*vmctx).as_wasi_ctx_mut()).insert_fd_entry(fe) {
Ok(fd) => fd, Ok(fd) => fd,
Err(e) => return enc_errno(e), Err(e) => return enc_errno(e),
} }
@@ -673,8 +648,7 @@ pub unsafe extern "C" fn __wasi_path_open(
} }
} }
#[no_mangle] pub unsafe fn random_get(
pub unsafe extern "C" fn __wasi_random_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
buf_ptr: wasm32::uintptr_t, buf_ptr: wasm32::uintptr_t,
buf_len: wasm32::size_t, buf_len: wasm32::size_t,
@@ -694,8 +668,7 @@ pub unsafe extern "C" fn __wasi_random_get(
return wasm32::__WASI_ESUCCESS; return wasm32::__WASI_ESUCCESS;
} }
#[no_mangle] pub unsafe fn poll_oneoff(
pub unsafe extern "C" fn __wasi_poll_oneoff(
vmctx: *mut VmContext, vmctx: *mut VmContext,
input: wasm32::uintptr_t, input: wasm32::uintptr_t,
output: wasm32::uintptr_t, output: wasm32::uintptr_t,
@@ -778,7 +751,7 @@ pub unsafe extern "C" fn __wasi_poll_oneoff(
} }
}; };
if ready == 0 { if ready == 0 {
return __wasi_poll_oneoff_handle_timeout_event( return poll_oneoff_handle_timeout_event(
&mut *vmctx, &mut *vmctx,
output_slice, output_slice,
nevents, nevents,
@@ -786,11 +759,10 @@ pub unsafe extern "C" fn __wasi_poll_oneoff(
); );
} }
let events = fd_events.iter().zip(poll_fds.iter()).take(ready); let events = fd_events.iter().zip(poll_fds.iter()).take(ready);
__wasi_poll_oneoff_handle_fd_event(&mut *vmctx, output_slice, nevents, events) poll_oneoff_handle_fd_event(&mut *vmctx, output_slice, nevents, events)
} }
#[no_mangle] pub unsafe fn fd_filestat_get(
pub unsafe extern "C" fn __wasi_fd_filestat_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
filestat_ptr: wasm32::uintptr_t, filestat_ptr: wasm32::uintptr_t,
@@ -800,7 +772,7 @@ pub unsafe extern "C" fn __wasi_fd_filestat_get(
let host_fd = dec_fd(fd); let host_fd = dec_fd(fd);
let ctx = (*vmctx).as_wasi_ctx_mut(); let ctx = (*vmctx).as_wasi_ctx_mut();
let errno = if let Some(fe) = ctx.fds.get(&host_fd) { let errno = if let Some(fe) = (*ctx).fds.get(&host_fd) {
match fstat(fe.fd_object.rawfd) { match fstat(fe.fd_object.rawfd) {
Err(e) => wasm32::errno_from_nix(e.as_errno().unwrap()), Err(e) => wasm32::errno_from_nix(e.as_errno().unwrap()),
Ok(filestat) => { Ok(filestat) => {
@@ -818,8 +790,7 @@ pub unsafe extern "C" fn __wasi_fd_filestat_get(
errno errno
} }
#[no_mangle] pub unsafe fn path_filestat_get(
pub unsafe extern "C" fn __wasi_path_filestat_get(
vmctx: *mut VmContext, vmctx: *mut VmContext,
dirfd: wasm32::__wasi_fd_t, dirfd: wasm32::__wasi_fd_t,
dirflags: wasm32::__wasi_lookupflags_t, dirflags: wasm32::__wasi_lookupflags_t,
@@ -865,8 +836,7 @@ pub unsafe extern "C" fn __wasi_path_filestat_get(
} }
} }
#[no_mangle] pub unsafe fn path_create_directory(
pub unsafe extern "C" fn __wasi_path_create_directory(
vmctx: *mut VmContext, vmctx: *mut VmContext,
dirfd: wasm32::__wasi_fd_t, dirfd: wasm32::__wasi_fd_t,
path_ptr: wasm32::uintptr_t, path_ptr: wasm32::uintptr_t,
@@ -904,8 +874,7 @@ pub unsafe extern "C" fn __wasi_path_create_directory(
} }
} }
#[no_mangle] pub unsafe fn path_unlink_file(
pub unsafe extern "C" fn __wasi_path_unlink_file(
vmctx: *mut VmContext, vmctx: *mut VmContext,
dirfd: wasm32::__wasi_fd_t, dirfd: wasm32::__wasi_fd_t,
path_ptr: wasm32::uintptr_t, path_ptr: wasm32::uintptr_t,
@@ -971,7 +940,7 @@ struct FdEventData {
userdata: host::__wasi_userdata_t, userdata: host::__wasi_userdata_t,
} }
fn __wasi_poll_oneoff_handle_timeout_event( fn poll_oneoff_handle_timeout_event(
vmctx: *mut VmContext, vmctx: *mut VmContext,
output_slice: &mut [wasm32::__wasi_event_t], output_slice: &mut [wasm32::__wasi_event_t],
nevents: wasm32::uintptr_t, nevents: wasm32::uintptr_t,
@@ -1002,7 +971,7 @@ fn __wasi_poll_oneoff_handle_timeout_event(
wasm32::__WASI_ESUCCESS wasm32::__WASI_ESUCCESS
} }
fn __wasi_poll_oneoff_handle_fd_event<'t>( fn poll_oneoff_handle_fd_event<'t>(
vmctx: *mut VmContext, vmctx: *mut VmContext,
output_slice: &mut [wasm32::__wasi_event_t], output_slice: &mut [wasm32::__wasi_event_t],
nevents: wasm32::uintptr_t, nevents: wasm32::uintptr_t,
@@ -1133,9 +1102,9 @@ pub fn path_get<P: AsRef<OsStr>>(
Err(errno) Err(errno)
} }
let ctx = vmctx.as_wasi_ctx(); let ctx = (*vmctx).as_wasi_ctx();
let dirfe = ctx.get_fd_entry(dirfd, needed_base, needed_inheriting)?; let dirfe = unsafe { (*ctx).get_fd_entry(dirfd, needed_base, needed_inheriting)? };
// Stack of directory file descriptors. Index 0 always corresponds with the directory provided // Stack of directory file descriptors. Index 0 always corresponds with the directory provided
// to this function. Entering a directory causes a file descriptor to be pushed, while handling // to this function. Entering a directory causes a file descriptor to be pushed, while handling
@@ -1351,10 +1320,3 @@ pub fn path_get<P: AsRef<OsStr>>(
} }
} }
} }
#[doc(hidden)]
pub fn ensure_linked() {
unsafe {
std::ptr::read_volatile(__wasi_proc_exit as *const extern "C" fn());
}
}