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Port host::__wasi_errno_t errors to Rust

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They are now blacklisted in the bindgen.
This commit is contained in:
Jakub Konka
2019-04-29 11:06:01 +02:00
committed by Dan Gohman
parent a51ffb6b6d
commit 86b7a52009
5 changed files with 248 additions and 134 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
wasmtime-wasi/Cargo.toml
View File

@@ -20,6 +20,7 @@ target-lexicon = "0.3.0"
cast = { version = "0.2.2", default-features = false }
log = { version = "0.4.6", default-features = false }
libc = "0.2.50"
errno = "0.2.4"
[build-dependencies]
cmake = "0.1.35"

79
wasmtime-wasi/build.rs
View File

@@ -24,7 +24,84 @@ fn main() {
.whitelist_type("fd_table")
.whitelist_type("fd_prestats")
.whitelist_type("argv_environ_values")
.whitelist_var("__WASI_.*");
.whitelist_var("__WASI_.*")
.blacklist_item("__WASI_ESUCCESS")
.blacklist_item("__WASI_E2BIG")
.blacklist_item("__WASI_EACCES")
.blacklist_item("__WASI_EADDRINUSE")
.blacklist_item("__WASI_EADDRNOTAVAIL")
.blacklist_item("__WASI_EAFNOSUPPORT")
.blacklist_item("__WASI_EAGAIN")
.blacklist_item("__WASI_EALREADY")
.blacklist_item("__WASI_EBADF")
.blacklist_item("__WASI_EBADMSG")
.blacklist_item("__WASI_EBUSY")
.blacklist_item("__WASI_ECANCELED")
.blacklist_item("__WASI_ECHILD")
.blacklist_item("__WASI_ECONNABORTED")
.blacklist_item("__WASI_ECONNREFUSED")
.blacklist_item("__WASI_ECONNRESET")
.blacklist_item("__WASI_EDEADLK")
.blacklist_item("__WASI_EDESTADDRREQ")
.blacklist_item("__WASI_EDOM")
.blacklist_item("__WASI_EDQUOT")
.blacklist_item("__WASI_EEXIST")
.blacklist_item("__WASI_EFAULT")
.blacklist_item("__WASI_EFBIG")
.blacklist_item("__WASI_EHOSTUNREACH")
.blacklist_item("__WASI_EIDRM")
.blacklist_item("__WASI_EILSEQ")
.blacklist_item("__WASI_EINPROGRESS")
.blacklist_item("__WASI_EINTR")
.blacklist_item("__WASI_EINVAL")
.blacklist_item("__WASI_EIO")
.blacklist_item("__WASI_EISCONN")
.blacklist_item("__WASI_EISDIR")
.blacklist_item("__WASI_ELOOP")
.blacklist_item("__WASI_EMFILE")
.blacklist_item("__WASI_EMLINK")
.blacklist_item("__WASI_EMSGSIZE")
.blacklist_item("__WASI_EMULTIHOP")
.blacklist_item("__WASI_ENAMETOOLONG")
.blacklist_item("__WASI_ENETDOWN")
.blacklist_item("__WASI_ENETRESET")
.blacklist_item("__WASI_ENETUNREACH")
.blacklist_item("__WASI_ENFILE")
.blacklist_item("__WASI_ENOBUFS")
.blacklist_item("__WASI_ENODEV")
.blacklist_item("__WASI_ENOENT")
.blacklist_item("__WASI_ENOEXEC")
.blacklist_item("__WASI_ENOLCK")
.blacklist_item("__WASI_ENOLINK")
.blacklist_item("__WASI_ENOMEM")
.blacklist_item("__WASI_ENOMSG")
.blacklist_item("__WASI_ENOPROTOOPT")
.blacklist_item("__WASI_ENOSPC")
.blacklist_item("__WASI_ENOSYS")
.blacklist_item("__WASI_ENOTCONN")
.blacklist_item("__WASI_ENOTDIR")
.blacklist_item("__WASI_ENOTEMPTY")
.blacklist_item("__WASI_ENOTRECOVERABLE")
.blacklist_item("__WASI_ENOTSOCK")
.blacklist_item("__WASI_ENOTSUP")
.blacklist_item("__WASI_ENOTTY")
.blacklist_item("__WASI_ENXIO")
.blacklist_item("__WASI_EOVERFLOW")
.blacklist_item("__WASI_EOWNERDEAD")
.blacklist_item("__WASI_EPERM")
.blacklist_item("__WASI_EPIPE")
.blacklist_item("__WASI_EPROTO")
.blacklist_item("__WASI_EPROTONOSUPPORT")
.blacklist_item("__WASI_EPROTOTYPE")
.blacklist_item("__WASI_ERANGE")
.blacklist_item("__WASI_EROFS")
.blacklist_item("__WASI_ESPIPE")
.blacklist_item("__WASI_ESRCH")
.blacklist_item("__WASI_ESTALE")
.blacklist_item("__WASI_ETIMEDOUT")
.blacklist_item("__WASI_ETXTBSY")
.blacklist_item("__WASI_EXDEV")
.blacklist_item("__WASI_ENOTCAPABLE");
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());

208
wasmtime-wasi/src/host.rs
View File

@@ -4,134 +4,82 @@ include!(concat!(env!("OUT_DIR"), "/wasmtime_ssp.rs"));
pub type char = ::std::os::raw::c_char;
pub type void = ::std::os::raw::c_void;
// pub type __wasi_errno_t = u16;
use super::wasm32;
// Taken from rust's implementation of `std::os` functionality for unix systems
// rust/src/libstd/sys/unix/os.rs
// https://github.com/rust-lang/rust/blob/9ebf47851a357faa4cd97f4b1dc7835f6376e639/src/libstd/sys/unix/os.rs
extern "C" {
#[cfg(not(target_os = "dragonfly"))]
#[cfg_attr(
any(target_os = "linux", target_os = "fuchsia", target_os = "l4re"),
link_name = "__errno_location"
)]
#[cfg_attr(
any(
target_os = "bitrig",
target_os = "netbsd",
target_os = "openbsd",
target_os = "android",
target_os = "hermit",
target_env = "newlib"
),
link_name = "__errno"
)]
#[cfg_attr(target_os = "solaris", link_name = "___errno")]
#[cfg_attr(
any(target_os = "macos", target_os = "ios", target_os = "freebsd"),
link_name = "__error"
)]
#[cfg_attr(target_os = "haiku", link_name = "_errnop")]
fn errno_location() -> *mut libc::c_int;
}
#[cfg(not(target_os = "dragonfly"))]
pub fn errno() -> i32 {
unsafe { (*errno_location()) as i32 }
}
#[cfg(target_os = "dragonfly")]
pub fn errno() -> i32 {
extern "C" {
#[thread_local]
static errno: c_int;
}
unsafe { errno as i32 }
}
pub fn convert_errno(errno: i32) -> wasm32::__wasi_errno_t {
#[allow(unreachable_patterns)]
match errno {
libc::E2BIG => wasm32::__WASI_E2BIG,
libc::EACCES => wasm32::__WASI_EACCES,
libc::EADDRINUSE => wasm32::__WASI_EADDRINUSE,
libc::EADDRNOTAVAIL => wasm32::__WASI_EADDRNOTAVAIL,
libc::EAFNOSUPPORT => wasm32::__WASI_EAFNOSUPPORT,
libc::EAGAIN | libc::EWOULDBLOCK => wasm32::__WASI_EAGAIN,
libc::EALREADY => wasm32::__WASI_EALREADY,
libc::EBADF => wasm32::__WASI_EBADF,
libc::EBADMSG => wasm32::__WASI_EBADMSG,
libc::EBUSY => wasm32::__WASI_EBUSY,
libc::ECANCELED => wasm32::__WASI_ECANCELED,
libc::ECHILD => wasm32::__WASI_ECHILD,
libc::ECONNABORTED => wasm32::__WASI_ECONNABORTED,
libc::ECONNREFUSED => wasm32::__WASI_ECONNREFUSED,
libc::ECONNRESET => wasm32::__WASI_ECONNRESET,
libc::EDEADLK => wasm32::__WASI_EDEADLK,
libc::EDESTADDRREQ => wasm32::__WASI_EDESTADDRREQ,
libc::EDOM => wasm32::__WASI_EDOM,
libc::EDQUOT => wasm32::__WASI_EDQUOT,
libc::EEXIST => wasm32::__WASI_EEXIST,
libc::EFAULT => wasm32::__WASI_EFAULT,
libc::EFBIG => wasm32::__WASI_EFBIG,
libc::EHOSTUNREACH => wasm32::__WASI_EHOSTUNREACH,
libc::EIDRM => wasm32::__WASI_EIDRM,
libc::EILSEQ => wasm32::__WASI_EILSEQ,
libc::EINPROGRESS => wasm32::__WASI_EINPROGRESS,
libc::EINTR => wasm32::__WASI_EINTR,
libc::EINVAL => wasm32::__WASI_EINVAL,
libc::EIO => wasm32::__WASI_EIO,
libc::EISCONN => wasm32::__WASI_EISCONN,
libc::EISDIR => wasm32::__WASI_EISDIR,
libc::ELOOP => wasm32::__WASI_ELOOP,
libc::EMFILE => wasm32::__WASI_EMFILE,
libc::EMLINK => wasm32::__WASI_EMLINK,
libc::EMSGSIZE => wasm32::__WASI_EMSGSIZE,
libc::EMULTIHOP => wasm32::__WASI_EMULTIHOP,
libc::ENAMETOOLONG => wasm32::__WASI_ENAMETOOLONG,
libc::ENETDOWN => wasm32::__WASI_ENETDOWN,
libc::ENETRESET => wasm32::__WASI_ENETRESET,
libc::ENETUNREACH => wasm32::__WASI_ENETUNREACH,
libc::ENFILE => wasm32::__WASI_ENFILE,
libc::ENOBUFS => wasm32::__WASI_ENOBUFS,
libc::ENODEV => wasm32::__WASI_ENODEV,
libc::ENOENT => wasm32::__WASI_ENOENT,
libc::ENOEXEC => wasm32::__WASI_ENOEXEC,
libc::ENOLCK => wasm32::__WASI_ENOLCK,
libc::ENOLINK => wasm32::__WASI_ENOLINK,
libc::ENOMEM => wasm32::__WASI_ENOMEM,
libc::ENOMSG => wasm32::__WASI_ENOMSG,
libc::ENOPROTOOPT => wasm32::__WASI_ENOPROTOOPT,
libc::ENOSPC => wasm32::__WASI_ENOSPC,
libc::ENOSYS => wasm32::__WASI_ENOSYS,
// TODO: verify if this is correct
#[cfg(target_os = "freebsd")]
libc::ENOTCAPABLE => wasm32::__WASI_ENOTCAPABLE,
libc::ENOTCONN => wasm32::__WASI_ENOTCONN,
libc::ENOTDIR => wasm32::__WASI_ENOTDIR,
libc::ENOTEMPTY => wasm32::__WASI_ENOTEMPTY,
libc::ENOTRECOVERABLE => wasm32::__WASI_ENOTRECOVERABLE,
libc::ENOTSOCK => wasm32::__WASI_ENOTSOCK,
libc::ENOTSUP | libc::EOPNOTSUPP => wasm32::__WASI_ENOTSUP,
libc::ENOTTY => wasm32::__WASI_ENOTTY,
libc::ENXIO => wasm32::__WASI_ENXIO,
libc::EOVERFLOW => wasm32::__WASI_EOVERFLOW,
libc::EOWNERDEAD => wasm32::__WASI_EOWNERDEAD,
libc::EPERM => wasm32::__WASI_EPERM,
libc::EPIPE => wasm32::__WASI_EPIPE,
libc::EPROTO => wasm32::__WASI_EPROTO,
libc::EPROTONOSUPPORT => wasm32::__WASI_EPROTONOSUPPORT,
libc::EPROTOTYPE => wasm32::__WASI_EPROTOTYPE,
libc::ERANGE => wasm32::__WASI_ERANGE,
libc::EROFS => wasm32::__WASI_EROFS,
libc::ESPIPE => wasm32::__WASI_ESPIPE,
libc::ESRCH => wasm32::__WASI_ESRCH,
libc::ESTALE => wasm32::__WASI_ESTALE,
libc::ETIMEDOUT => wasm32::__WASI_ETIMEDOUT,
libc::ETXTBSY => wasm32::__WASI_ETXTBSY,
libc::EXDEV => wasm32::__WASI_EXDEV,
_ => wasm32::__WASI_ENOSYS,
}
}
pub const __WASI_ESUCCESS: __wasi_errno_t = 0;
pub const __WASI_E2BIG: __wasi_errno_t = 1;
pub const __WASI_EACCES: __wasi_errno_t = 2;
pub const __WASI_EADDRINUSE: __wasi_errno_t = 3;
pub const __WASI_EADDRNOTAVAIL: __wasi_errno_t = 4;
pub const __WASI_EAFNOSUPPORT: __wasi_errno_t = 5;
pub const __WASI_EAGAIN: __wasi_errno_t = 6;
pub const __WASI_EALREADY: __wasi_errno_t = 7;
pub const __WASI_EBADF: __wasi_errno_t = 8;
pub const __WASI_EBADMSG: __wasi_errno_t = 9;
pub const __WASI_EBUSY: __wasi_errno_t = 10;
pub const __WASI_ECANCELED: __wasi_errno_t = 11;
pub const __WASI_ECHILD: __wasi_errno_t = 12;
pub const __WASI_ECONNABORTED: __wasi_errno_t = 13;
pub const __WASI_ECONNREFUSED: __wasi_errno_t = 14;
pub const __WASI_ECONNRESET: __wasi_errno_t = 15;
pub const __WASI_EDEADLK: __wasi_errno_t = 16;
pub const __WASI_EDESTADDRREQ: __wasi_errno_t = 17;
pub const __WASI_EDOM: __wasi_errno_t = 18;
pub const __WASI_EDQUOT: __wasi_errno_t = 19;
pub const __WASI_EEXIST: __wasi_errno_t = 20;
pub const __WASI_EFAULT: __wasi_errno_t = 21;
pub const __WASI_EFBIG: __wasi_errno_t = 22;
pub const __WASI_EHOSTUNREACH: __wasi_errno_t = 23;
pub const __WASI_EIDRM: __wasi_errno_t = 24;
pub const __WASI_EILSEQ: __wasi_errno_t = 25;
pub const __WASI_EINPROGRESS: __wasi_errno_t = 26;
pub const __WASI_EINTR: __wasi_errno_t = 27;
pub const __WASI_EINVAL: __wasi_errno_t = 28;
pub const __WASI_EIO: __wasi_errno_t = 29;
pub const __WASI_EISCONN: __wasi_errno_t = 30;
pub const __WASI_EISDIR: __wasi_errno_t = 31;
pub const __WASI_ELOOP: __wasi_errno_t = 32;
pub const __WASI_EMFILE: __wasi_errno_t = 33;
pub const __WASI_EMLINK: __wasi_errno_t = 34;
pub const __WASI_EMSGSIZE: __wasi_errno_t = 35;
pub const __WASI_EMULTIHOP: __wasi_errno_t = 36;
pub const __WASI_ENAMETOOLONG: __wasi_errno_t = 37;
pub const __WASI_ENETDOWN: __wasi_errno_t = 38;
pub const __WASI_ENETRESET: __wasi_errno_t = 39;
pub const __WASI_ENETUNREACH: __wasi_errno_t = 40;
pub const __WASI_ENFILE: __wasi_errno_t = 41;
pub const __WASI_ENOBUFS: __wasi_errno_t = 42;
pub const __WASI_ENODEV: __wasi_errno_t = 43;
pub const __WASI_ENOENT: __wasi_errno_t = 44;
pub const __WASI_ENOEXEC: __wasi_errno_t = 45;
pub const __WASI_ENOLCK: __wasi_errno_t = 46;
pub const __WASI_ENOLINK: __wasi_errno_t = 47;
pub const __WASI_ENOMEM: __wasi_errno_t = 48;
pub const __WASI_ENOMSG: __wasi_errno_t = 49;
pub const __WASI_ENOPROTOOPT: __wasi_errno_t = 50;
pub const __WASI_ENOSPC: __wasi_errno_t = 51;
pub const __WASI_ENOSYS: __wasi_errno_t = 52;
pub const __WASI_ENOTCONN: __wasi_errno_t = 53;
pub const __WASI_ENOTDIR: __wasi_errno_t = 54;
pub const __WASI_ENOTEMPTY: __wasi_errno_t = 55;
pub const __WASI_ENOTRECOVERABLE: __wasi_errno_t = 56;
pub const __WASI_ENOTSOCK: __wasi_errno_t = 57;
pub const __WASI_ENOTSUP: __wasi_errno_t = 58;
pub const __WASI_ENOTTY: __wasi_errno_t = 59;
pub const __WASI_ENXIO: __wasi_errno_t = 60;
pub const __WASI_EOVERFLOW: __wasi_errno_t = 61;
pub const __WASI_EOWNERDEAD: __wasi_errno_t = 62;
pub const __WASI_EPERM: __wasi_errno_t = 63;
pub const __WASI_EPIPE: __wasi_errno_t = 64;
pub const __WASI_EPROTO: __wasi_errno_t = 65;
pub const __WASI_EPROTONOSUPPORT: __wasi_errno_t = 66;
pub const __WASI_EPROTOTYPE: __wasi_errno_t = 67;
pub const __WASI_ERANGE: __wasi_errno_t = 68;
pub const __WASI_EROFS: __wasi_errno_t = 69;
pub const __WASI_ESPIPE: __wasi_errno_t = 70;
pub const __WASI_ESRCH: __wasi_errno_t = 71;
pub const __WASI_ESTALE: __wasi_errno_t = 72;
pub const __WASI_ETIMEDOUT: __wasi_errno_t = 73;
pub const __WASI_ETXTBSY: __wasi_errno_t = 74;
pub const __WASI_EXDEV: __wasi_errno_t = 75;
pub const __WASI_ENOTCAPABLE: __wasi_errno_t = 76;

93
wasmtime-wasi/src/host_impls.rs
View File

@@ -1,16 +1,103 @@
use super::host;
use super::wasm32;
use errno::{errno, Errno};
/// Convert POSIX error code to host's WASI error code
fn convert_errno(error: Errno) -> host::__wasi_errno_t {
#[allow(unreachable_patterns)]
match error.into() {
libc::E2BIG => host::__WASI_E2BIG,
libc::EACCES => host::__WASI_EACCES,
libc::EADDRINUSE => host::__WASI_EADDRINUSE,
libc::EADDRNOTAVAIL => host::__WASI_EADDRNOTAVAIL,
libc::EAFNOSUPPORT => host::__WASI_EAFNOSUPPORT,
libc::EAGAIN | libc::EWOULDBLOCK => host::__WASI_EAGAIN,
libc::EALREADY => host::__WASI_EALREADY,
libc::EBADF => host::__WASI_EBADF,
libc::EBADMSG => host::__WASI_EBADMSG,
libc::EBUSY => host::__WASI_EBUSY,
libc::ECANCELED => host::__WASI_ECANCELED,
libc::ECHILD => host::__WASI_ECHILD,
libc::ECONNABORTED => host::__WASI_ECONNABORTED,
libc::ECONNREFUSED => host::__WASI_ECONNREFUSED,
libc::ECONNRESET => host::__WASI_ECONNRESET,
libc::EDEADLK => host::__WASI_EDEADLK,
libc::EDESTADDRREQ => host::__WASI_EDESTADDRREQ,
libc::EDOM => host::__WASI_EDOM,
libc::EDQUOT => host::__WASI_EDQUOT,
libc::EEXIST => host::__WASI_EEXIST,
libc::EFAULT => host::__WASI_EFAULT,
libc::EFBIG => host::__WASI_EFBIG,
libc::EHOSTUNREACH => host::__WASI_EHOSTUNREACH,
libc::EIDRM => host::__WASI_EIDRM,
libc::EILSEQ => host::__WASI_EILSEQ,
libc::EINPROGRESS => host::__WASI_EINPROGRESS,
libc::EINTR => host::__WASI_EINTR,
libc::EINVAL => host::__WASI_EINVAL,
libc::EIO => host::__WASI_EIO,
libc::EISCONN => host::__WASI_EISCONN,
libc::EISDIR => host::__WASI_EISDIR,
libc::ELOOP => host::__WASI_ELOOP,
libc::EMFILE => host::__WASI_EMFILE,
libc::EMLINK => host::__WASI_EMLINK,
libc::EMSGSIZE => host::__WASI_EMSGSIZE,
libc::EMULTIHOP => host::__WASI_EMULTIHOP,
libc::ENAMETOOLONG => host::__WASI_ENAMETOOLONG,
libc::ENETDOWN => host::__WASI_ENETDOWN,
libc::ENETRESET => host::__WASI_ENETRESET,
libc::ENETUNREACH => host::__WASI_ENETUNREACH,
libc::ENFILE => host::__WASI_ENFILE,
libc::ENOBUFS => host::__WASI_ENOBUFS,
libc::ENODEV => host::__WASI_ENODEV,
libc::ENOENT => host::__WASI_ENOENT,
libc::ENOEXEC => host::__WASI_ENOEXEC,
libc::ENOLCK => host::__WASI_ENOLCK,
libc::ENOLINK => host::__WASI_ENOLINK,
libc::ENOMEM => host::__WASI_ENOMEM,
libc::ENOMSG => host::__WASI_ENOMSG,
libc::ENOPROTOOPT => host::__WASI_ENOPROTOOPT,
libc::ENOSPC => host::__WASI_ENOSPC,
libc::ENOSYS => host::__WASI_ENOSYS,
// TODO: verify if this is correct
#[cfg(target_os = "freebsd")]
libc::ENOTCAPABLE => host::__WASI_ENOTCAPABLE,
libc::ENOTCONN => host::__WASI_ENOTCONN,
libc::ENOTDIR => host::__WASI_ENOTDIR,
libc::ENOTEMPTY => host::__WASI_ENOTEMPTY,
libc::ENOTRECOVERABLE => host::__WASI_ENOTRECOVERABLE,
libc::ENOTSOCK => host::__WASI_ENOTSOCK,
libc::ENOTSUP | libc::EOPNOTSUPP => host::__WASI_ENOTSUP,
libc::ENOTTY => host::__WASI_ENOTTY,
libc::ENXIO => host::__WASI_ENXIO,
libc::EOVERFLOW => host::__WASI_EOVERFLOW,
libc::EOWNERDEAD => host::__WASI_EOWNERDEAD,
libc::EPERM => host::__WASI_EPERM,
libc::EPIPE => host::__WASI_EPIPE,
libc::EPROTO => host::__WASI_EPROTO,
libc::EPROTONOSUPPORT => host::__WASI_EPROTONOSUPPORT,
libc::EPROTOTYPE => host::__WASI_EPROTOTYPE,
libc::ERANGE => host::__WASI_ERANGE,
libc::EROFS => host::__WASI_EROFS,
libc::ESPIPE => host::__WASI_ESPIPE,
libc::ESRCH => host::__WASI_ESRCH,
libc::ESTALE => host::__WASI_ESTALE,
libc::ETIMEDOUT => host::__WASI_ETIMEDOUT,
libc::ETXTBSY => host::__WASI_ETXTBSY,
libc::EXDEV => host::__WASI_EXDEV,
_ => host::__WASI_ENOSYS,
}
}
pub fn wasmtime_ssp_proc_exit(rval: wasm32::__wasi_exitcode_t) {
::std::process::exit(rval as i32)
}
pub fn wasmtime_ssp_sched_yield() -> wasm32::__wasi_errno_t {
pub fn wasmtime_ssp_sched_yield() -> host::__wasi_errno_t {
unsafe {
if libc::sched_yield() < 0 {
return host::convert_errno(host::errno());
return convert_errno(errno());
}
}
wasm32::__WASI_ESUCCESS
host::__WASI_ESUCCESS
}

1
wasmtime-wasi/src/lib.rs
View File

@@ -8,6 +8,7 @@ extern crate wasmtime_jit;
extern crate wasmtime_runtime;
#[macro_use]
extern crate log;
extern crate errno;
mod host;
mod host_impls;