std: Internalize almost all of `std::rt`

This commit does some refactoring to make almost all of the `std::rt` private.
Specifically, the following items are no longer part of its API:

* DEFAULT_ERROR_CODE
* backtrace
* unwind
* args
* at_exit
* cleanup
* heap (this is just alloc::heap)
* min_stack
* util

The module is now tagged as `#[doc(hidden)]` as the only purpose it's serve is
an entry point for the `panic!` macro via the `begin_unwind` and
`begin_unwind_fmt` reexports.

1 files changed, 0 insertions, 53 deletions

diff --git a/src/libstd/rt/util.rs b/src/libstd/rt/util.rs
deleted file mode 100644
index 23a3c3e38c4..00000000000
--- a/src/libstd/rt/util.rs
+++ /dev/null
@@ -1,53 +0,0 @@
-// 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.
-
-use io::prelude::*;
-
-use env;
-use fmt;
-use intrinsics;
-use sync::atomic::{self, Ordering};
-use sys::stdio::Stderr;
-
-pub fn min_stack() -> usize {
-    static MIN: atomic::AtomicUsize = atomic::AtomicUsize::new(0);
-    match MIN.load(Ordering::SeqCst) {
-        0 => {}
-        n => return n - 1,
-    }
-    let amt = env::var("RUST_MIN_STACK").ok().and_then(|s| s.parse().ok());
-    let amt = amt.unwrap_or(2 * 1024 * 1024);
-    // 0 is our sentinel value, so ensure that we'll never see 0 after
-    // initialization has run
-    MIN.store(amt + 1, Ordering::SeqCst);
-    amt
-}
-
-// Indicates whether we should perform expensive sanity checks, including rtassert!
-//
-// FIXME: Once the runtime matures remove the `true` below to turn off rtassert,
-//        etc.
-pub const ENFORCE_SANITY: bool = true || !cfg!(rtopt) || cfg!(rtdebug) ||
-                                  cfg!(rtassert);
-
-pub fn dumb_print(args: fmt::Arguments) {
-    let _ = Stderr::new().map(|mut stderr| stderr.write_fmt(args));
-}
-
-pub fn abort(args: fmt::Arguments) -> ! {
-    rterrln!("fatal runtime error: {}", args);
-    unsafe { intrinsics::abort(); }
-}
-
-pub unsafe fn report_overflow() {
-    use thread;
-    rterrln!("\nthread '{}' has overflowed its stack",
-             thread::current().name().unwrap_or("<unknown>"));
-}