1 files changed, 51 insertions, 0 deletions
diff --git a/library/std/src/os/fortanix_sgx/mod.rs b/library/std/src/os/fortanix_sgx/mod.rs
new file mode 100644
index 00000000000..69923268e57
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+++ b/library/std/src/os/fortanix_sgx/mod.rs
@@ -0,0 +1,51 @@
+//! Functionality specific to the `x86_64-fortanix-unknown-sgx` target.
+//!
+//! This includes functions to deal with memory isolation, usercalls, and the
+//! SGX instruction set.
+
+#![deny(missing_docs, missing_debug_implementations)]
+#![unstable(feature = "sgx_platform", issue = "56975")]
+
+/// Low-level interfaces to usercalls. See the [ABI documentation] for more
+/// information.
+///
+/// [ABI documentation]: https://docs.rs/fortanix-sgx-abi/
+pub mod usercalls {
+    pub use crate::sys::abi::usercalls::*;
+
+    /// Primitives for allocating memory in userspace as well as copying data
+    /// to and from user memory.
+    pub mod alloc {
+        pub use crate::sys::abi::usercalls::alloc::*;
+    }
+
+    /// Lowest-level interfaces to usercalls and usercall ABI type definitions.
+    pub mod raw {
+        pub use crate::sys::abi::usercalls::raw::{
+            accept_stream, alloc, async_queues, bind_stream, close, connect_stream, exit, flush,
+            free, insecure_time, launch_thread, read, read_alloc, send, wait, write,
+        };
+        pub use crate::sys::abi::usercalls::raw::{do_usercall, Usercalls as UsercallNrs};
+
+        // fortanix-sgx-abi re-exports
+        pub use crate::sys::abi::usercalls::raw::Error;
+        pub use crate::sys::abi::usercalls::raw::{ByteBuffer, FifoDescriptor, Return, Usercall};
+        pub use crate::sys::abi::usercalls::raw::{Fd, Result, Tcs};
+        pub use crate::sys::abi::usercalls::raw::{
+            EV_RETURNQ_NOT_EMPTY, EV_UNPARK, EV_USERCALLQ_NOT_FULL, FD_STDERR, FD_STDIN, FD_STDOUT,
+            RESULT_SUCCESS, USERCALL_USER_DEFINED, WAIT_INDEFINITE, WAIT_NO,
+        };
+    }
+}
+
+/// Functions for querying mapping information for pointers.
+pub mod mem {
+    pub use crate::sys::abi::mem::*;
+}
+
+pub use crate::sys::ext::{arch, ffi, io};
+
+/// Functions for querying thread-related information.
+pub mod thread {
+    pub use crate::sys::abi::thread::current;
+}