| //! System bindings for the Teeos platform |
| //! |
| //! This module contains the facade (aka platform-specific) implementations of |
| //! OS level functionality for Teeos. |
| #![allow(unsafe_op_in_unsafe_fn)] |
| #![allow(unused_variables)] |
| #![allow(dead_code)] |
| |
| pub use self::rand::hashmap_random_keys; |
| |
| pub mod alloc; |
| #[path = "../unsupported/args.rs"] |
| pub mod args; |
| #[path = "../unsupported/env.rs"] |
| pub mod env; |
| pub mod locks; |
| //pub mod fd; |
| #[path = "../unsupported/fs.rs"] |
| pub mod fs; |
| #[path = "../unsupported/io.rs"] |
| pub mod io; |
| #[path = "../unix/memchr.rs"] |
| pub mod memchr; |
| pub mod net; |
| #[path = "../unsupported/once.rs"] |
| pub mod once; |
| pub mod os; |
| #[path = "../unix/path.rs"] |
| pub mod path; |
| #[path = "../unsupported/pipe.rs"] |
| pub mod pipe; |
| #[path = "../unsupported/process.rs"] |
| pub mod process; |
| mod rand; |
| pub mod stdio; |
| pub mod thread; |
| pub mod thread_local_dtor; |
| #[path = "../unix/thread_local_key.rs"] |
| pub mod thread_local_key; |
| #[path = "../unsupported/thread_parking.rs"] |
| pub mod thread_parking; |
| #[allow(non_upper_case_globals)] |
| #[path = "../unix/time.rs"] |
| pub mod time; |
| |
| use crate::io::ErrorKind; |
| |
| pub fn abort_internal() -> ! { |
| unsafe { libc::abort() } |
| } |
| |
| // Trusted Applications are loaded as dynamic libraries on Teeos, |
| // so this should never be called. |
| pub fn init(argc: isize, argv: *const *const u8, sigpipe: u8) {} |
| |
| // SAFETY: must be called only once during runtime cleanup. |
| // this is not guaranteed to run, for example when the program aborts. |
| pub unsafe fn cleanup() { |
| unimplemented!() |
| // We do NOT have stack overflow handler, because TEE OS will kill TA when it happens. |
| // So cleanup is commented |
| // stack_overflow::cleanup(); |
| } |
| |
| #[inline] |
| pub(crate) fn is_interrupted(errno: i32) -> bool { |
| errno == libc::EINTR |
| } |
| |
| // Note: code below is 1:1 copied from unix/mod.rs |
| pub fn decode_error_kind(errno: i32) -> ErrorKind { |
| use ErrorKind::*; |
| match errno as libc::c_int { |
| libc::E2BIG => ArgumentListTooLong, |
| libc::EADDRINUSE => AddrInUse, |
| libc::EADDRNOTAVAIL => AddrNotAvailable, |
| libc::EBUSY => ResourceBusy, |
| libc::ECONNABORTED => ConnectionAborted, |
| libc::ECONNREFUSED => ConnectionRefused, |
| libc::ECONNRESET => ConnectionReset, |
| libc::EDEADLK => Deadlock, |
| libc::EDQUOT => FilesystemQuotaExceeded, |
| libc::EEXIST => AlreadyExists, |
| libc::EFBIG => FileTooLarge, |
| libc::EHOSTUNREACH => HostUnreachable, |
| libc::EINTR => Interrupted, |
| libc::EINVAL => InvalidInput, |
| libc::EISDIR => IsADirectory, |
| libc::ELOOP => FilesystemLoop, |
| libc::ENOENT => NotFound, |
| libc::ENOMEM => OutOfMemory, |
| libc::ENOSPC => StorageFull, |
| libc::ENOSYS => Unsupported, |
| libc::EMLINK => TooManyLinks, |
| libc::ENAMETOOLONG => InvalidFilename, |
| libc::ENETDOWN => NetworkDown, |
| libc::ENETUNREACH => NetworkUnreachable, |
| libc::ENOTCONN => NotConnected, |
| libc::ENOTDIR => NotADirectory, |
| libc::ENOTEMPTY => DirectoryNotEmpty, |
| libc::EPIPE => BrokenPipe, |
| libc::EROFS => ReadOnlyFilesystem, |
| libc::ESPIPE => NotSeekable, |
| libc::ESTALE => StaleNetworkFileHandle, |
| libc::ETIMEDOUT => TimedOut, |
| libc::ETXTBSY => ExecutableFileBusy, |
| libc::EXDEV => CrossesDevices, |
| |
| libc::EACCES | libc::EPERM => PermissionDenied, |
| |
| // These two constants can have the same value on some systems, |
| // but different values on others, so we can't use a match |
| // clause |
| x if x == libc::EAGAIN || x == libc::EWOULDBLOCK => WouldBlock, |
| |
| _ => Uncategorized, |
| } |
| } |
| |
| #[doc(hidden)] |
| pub trait IsMinusOne { |
| fn is_minus_one(&self) -> bool; |
| } |
| |
| macro_rules! impl_is_minus_one { |
| ($($t:ident)*) => ($(impl IsMinusOne for $t { |
| fn is_minus_one(&self) -> bool { |
| *self == -1 |
| } |
| })*) |
| } |
| |
| impl_is_minus_one! { i8 i16 i32 i64 isize } |
| |
| pub fn cvt<T: IsMinusOne>(t: T) -> crate::io::Result<T> { |
| if t.is_minus_one() { Err(crate::io::Error::last_os_error()) } else { Ok(t) } |
| } |
| |
| pub fn cvt_r<T, F>(mut f: F) -> crate::io::Result<T> |
| where |
| T: IsMinusOne, |
| F: FnMut() -> T, |
| { |
| loop { |
| match cvt(f()) { |
| Err(ref e) if e.kind() == ErrorKind::Interrupted => {} |
| other => return other, |
| } |
| } |
| } |
| |
| pub fn cvt_nz(error: libc::c_int) -> crate::io::Result<()> { |
| if error == 0 { Ok(()) } else { Err(crate::io::Error::from_raw_os_error(error)) } |
| } |
| |
| use crate::io as std_io; |
| pub fn unsupported<T>() -> std_io::Result<T> { |
| Err(unsupported_err()) |
| } |
| |
| pub fn unsupported_err() -> std_io::Error { |
| std_io::Error::new(std_io::ErrorKind::Unsupported, "operation not supported on this platform") |
| } |