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Rollup merge of rust-lang#56978 - jethrogb:jb/sgx-os-mod, r=joshtriplett
Add `std::os::fortanix_sgx` module This PR adds the `std::os::sgx` module to expose platform-specific APIs behind the `sgx_platform` feature gate. Depends on rust-lang#56972 to be able to meaningfully build `std::os` documentation for non-standard targets. Tracking issue: rust-lang#56975
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| // Copyright 2018 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
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| //! 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")] | ||
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| /// 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 sys::abi::usercalls::*; | ||
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| /// Primitives for allocating memory in userspace as well as copying data | ||
| /// to and from user memory. | ||
| pub mod alloc { | ||
| pub use sys::abi::usercalls::alloc; | ||
| } | ||
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| /// Lowest-level interfaces to usercalls and usercall ABI type definitions. | ||
| pub mod raw { | ||
| use sys::abi::usercalls::raw::invoke_with_usercalls; | ||
| pub use sys::abi::usercalls::raw::do_usercall; | ||
| pub use 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}; | ||
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| macro_rules! define_usercallnrs { | ||
| ($(fn $f:ident($($n:ident: $t:ty),*) $(-> $r:ty)*; )*) => { | ||
| /// Usercall numbers as per the ABI. | ||
| #[repr(C)] | ||
| #[unstable(feature = "sgx_platform", issue = "56975")] | ||
| #[derive(Copy, Clone, Hash, PartialEq, Eq, Debug)] | ||
| #[allow(missing_docs)] | ||
| pub enum UsercallNrs { | ||
| $($f,)* | ||
| } | ||
| }; | ||
| } | ||
| invoke_with_usercalls!(define_usercallnrs); | ||
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| // fortanix-sgx-abi re-exports | ||
| pub use sys::abi::usercalls::raw::{ByteBuffer, FifoDescriptor, Return, Usercall}; | ||
| pub use sys::abi::usercalls::raw::Error; | ||
| pub use 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}; | ||
| pub use sys::abi::usercalls::raw::{Fd, Result, Tcs}; | ||
| } | ||
| } | ||
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| /// Functions for querying mapping information for pointers. | ||
| pub mod mem { | ||
| pub use sys::abi::mem::*; | ||
| } |
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