| // Copyright 2013 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. |
| |
| //! Runtime services |
| //! |
| //! The `rt` module provides a narrow set of runtime services, |
| //! including the global heap (exported in `heap`) and unwinding and |
| //! backtrace support. The APIs in this module are highly unstable, |
| //! and should be considered as private implementation details for the |
| //! time being. |
| |
| #![unstable(feature = "rt", |
| reason = "this public module should not exist and is highly likely \ |
| to disappear", |
| issue = "0")] |
| #![doc(hidden)] |
| |
| |
| |
| // Reexport some of our utilities which are expected by other crates. |
| pub use sys_common::unwind::{begin_unwind, begin_unwind_fmt}; |
| |
| // Rust runtime's startup objects depend on these symbols, so they must be public. |
| // Since sys_common isn't public, we have to re-export them here. |
| #[cfg(all(target_os="windows", target_arch = "x86", target_env="gnu"))] |
| pub use sys_common::unwind::imp::eh_frame_registry::*; |
| |
| #[cfg(not(test))] |
| #[lang = "start"] |
| fn lang_start(main: *const u8, argc: isize, argv: *const *const u8) -> isize { |
| use borrow::ToOwned; |
| use mem; |
| use panic; |
| use sys; |
| use sys_common; |
| use sys_common::thread_info::{self, NewThread}; |
| use thread::Thread; |
| |
| sys::init(); |
| |
| let failed = unsafe { |
| let main_guard = sys::thread::guard::init(); |
| sys::stack_overflow::init(); |
| |
| // Next, set up the current Thread with the guard information we just |
| // created. Note that this isn't necessary in general for new threads, |
| // but we just do this to name the main thread and to give it correct |
| // info about the stack bounds. |
| let thread: Thread = NewThread::new(Some("<main>".to_owned())); |
| thread_info::set(main_guard, thread); |
| |
| // Store our args if necessary in a squirreled away location |
| sys_common::args::init(argc, argv); |
| |
| // Let's run some code! |
| let res = panic::recover(mem::transmute::<_, fn()>(main)); |
| sys_common::cleanup(); |
| res.is_err() |
| }; |
| |
| if failed { |
| 101 |
| } else { |
| 0 |
| } |
| } |