Fenrir
7 years ago
52 changed files with 2349 additions and 2119 deletions
@ -0,0 +1,121 @@
@@ -0,0 +1,121 @@
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! dox
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#![unstable(issue = "32838", feature = "allocator_api")] |
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#[doc(inline)] #[allow(deprecated)] pub use alloc_crate::alloc::Heap; |
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#[doc(inline)] pub use alloc_crate::alloc::Global; |
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#[doc(inline)] pub use alloc_system::System; |
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#[doc(inline)] pub use core::alloc::*; |
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#[cfg(not(test))] |
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#[doc(hidden)] |
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#[allow(unused_attributes)] |
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pub mod __default_lib_allocator { |
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use super::{System, Layout, GlobalAlloc, Opaque}; |
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// for symbol names src/librustc/middle/allocator.rs
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// for signatures src/librustc_allocator/lib.rs
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// linkage directives are provided as part of the current compiler allocator
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// ABI
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_alloc(size: usize, align: usize) -> *mut u8 { |
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let layout = Layout::from_size_align_unchecked(size, align); |
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System.alloc(layout) as *mut u8 |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_oom() -> ! { |
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System.oom() |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_dealloc(ptr: *mut u8, |
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size: usize, |
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align: usize) { |
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System.dealloc(ptr as *mut Opaque, Layout::from_size_align_unchecked(size, align)) |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_realloc(ptr: *mut u8, |
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old_size: usize, |
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align: usize, |
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new_size: usize) -> *mut u8 { |
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let old_layout = Layout::from_size_align_unchecked(old_size, align); |
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System.realloc(ptr as *mut Opaque, old_layout, new_size) as *mut u8 |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_alloc_zeroed(size: usize, align: usize) -> *mut u8 { |
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let layout = Layout::from_size_align_unchecked(size, align); |
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System.alloc_zeroed(layout) as *mut u8 |
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} |
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#[cfg(stage0)] |
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pub mod stage0 { |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_usable_size(_layout: *const u8, |
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_min: *mut usize, |
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_max: *mut usize) { |
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unimplemented!() |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_alloc_excess(_size: usize, |
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_align: usize, |
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_excess: *mut usize, |
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_err: *mut u8) -> *mut u8 { |
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unimplemented!() |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_realloc_excess(_ptr: *mut u8, |
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_old_size: usize, |
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_old_align: usize, |
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_new_size: usize, |
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_new_align: usize, |
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_excess: *mut usize, |
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_err: *mut u8) -> *mut u8 { |
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unimplemented!() |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_grow_in_place(_ptr: *mut u8, |
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_old_size: usize, |
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_old_align: usize, |
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_new_size: usize, |
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_new_align: usize) -> u8 { |
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unimplemented!() |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_shrink_in_place(_ptr: *mut u8, |
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_old_size: usize, |
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_old_align: usize, |
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_new_size: usize, |
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_new_align: usize) -> u8 { |
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unimplemented!() |
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} |
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} |
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} |
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@ -1,175 +0,0 @@
@@ -1,175 +0,0 @@
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! dox
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#![unstable(issue = "32838", feature = "allocator_api")] |
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pub use alloc::heap::{Heap, Alloc, Layout, Excess, CannotReallocInPlace, AllocErr}; |
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pub use alloc_system::System; |
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#[cfg(not(test))] |
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#[doc(hidden)] |
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#[allow(unused_attributes)] |
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pub mod __default_lib_allocator { |
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use super::{System, Layout, Alloc, AllocErr}; |
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use ptr; |
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// for symbol names src/librustc/middle/allocator.rs
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// for signatures src/librustc_allocator/lib.rs
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// linkage directives are provided as part of the current compiler allocator
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// ABI
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_alloc(size: usize, |
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align: usize, |
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err: *mut u8) -> *mut u8 { |
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let layout = Layout::from_size_align_unchecked(size, align); |
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match System.alloc(layout) { |
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Ok(p) => p, |
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Err(e) => { |
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ptr::write(err as *mut AllocErr, e); |
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0 as *mut u8 |
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} |
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} |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_oom(err: *const u8) -> ! { |
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System.oom((*(err as *const AllocErr)).clone()) |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_dealloc(ptr: *mut u8, |
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size: usize, |
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align: usize) { |
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System.dealloc(ptr, Layout::from_size_align_unchecked(size, align)) |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_usable_size(layout: *const u8, |
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min: *mut usize, |
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max: *mut usize) { |
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let pair = System.usable_size(&*(layout as *const Layout)); |
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*min = pair.0; |
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*max = pair.1; |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_realloc(ptr: *mut u8, |
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old_size: usize, |
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old_align: usize, |
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new_size: usize, |
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new_align: usize, |
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err: *mut u8) -> *mut u8 { |
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let old_layout = Layout::from_size_align_unchecked(old_size, old_align); |
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let new_layout = Layout::from_size_align_unchecked(new_size, new_align); |
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match System.realloc(ptr, old_layout, new_layout) { |
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Ok(p) => p, |
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Err(e) => { |
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ptr::write(err as *mut AllocErr, e); |
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0 as *mut u8 |
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} |
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} |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_alloc_zeroed(size: usize, |
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align: usize, |
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err: *mut u8) -> *mut u8 { |
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let layout = Layout::from_size_align_unchecked(size, align); |
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match System.alloc_zeroed(layout) { |
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Ok(p) => p, |
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Err(e) => { |
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ptr::write(err as *mut AllocErr, e); |
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0 as *mut u8 |
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} |
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} |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_alloc_excess(size: usize, |
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align: usize, |
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excess: *mut usize, |
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err: *mut u8) -> *mut u8 { |
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let layout = Layout::from_size_align_unchecked(size, align); |
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match System.alloc_excess(layout) { |
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Ok(p) => { |
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*excess = p.1; |
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p.0 |
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} |
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Err(e) => { |
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ptr::write(err as *mut AllocErr, e); |
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0 as *mut u8 |
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} |
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} |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_realloc_excess(ptr: *mut u8, |
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old_size: usize, |
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old_align: usize, |
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new_size: usize, |
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new_align: usize, |
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excess: *mut usize, |
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err: *mut u8) -> *mut u8 { |
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let old_layout = Layout::from_size_align_unchecked(old_size, old_align); |
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let new_layout = Layout::from_size_align_unchecked(new_size, new_align); |
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match System.realloc_excess(ptr, old_layout, new_layout) { |
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Ok(p) => { |
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*excess = p.1; |
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p.0 |
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} |
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Err(e) => { |
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ptr::write(err as *mut AllocErr, e); |
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0 as *mut u8 |
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} |
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} |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_grow_in_place(ptr: *mut u8, |
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old_size: usize, |
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old_align: usize, |
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new_size: usize, |
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new_align: usize) -> u8 { |
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let old_layout = Layout::from_size_align_unchecked(old_size, old_align); |
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let new_layout = Layout::from_size_align_unchecked(new_size, new_align); |
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match System.grow_in_place(ptr, old_layout, new_layout) { |
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Ok(()) => 1, |
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Err(_) => 0, |
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} |
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} |
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#[no_mangle] |
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#[rustc_std_internal_symbol] |
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pub unsafe extern fn __rdl_shrink_in_place(ptr: *mut u8, |
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old_size: usize, |
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old_align: usize, |
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new_size: usize, |
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new_align: usize) -> u8 { |
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let old_layout = Layout::from_size_align_unchecked(old_size, old_align); |
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let new_layout = Layout::from_size_align_unchecked(new_size, new_align); |
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match System.shrink_in_place(ptr, old_layout, new_layout) { |
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Ok(()) => 1, |
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Err(_) => 0, |
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} |
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} |
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} |
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@ -1,80 +0,0 @@
@@ -1,80 +0,0 @@
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use error::Error; |
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// TODO: Add these consts to the libc crate for newlib
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mod exit { |
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pub const SUCCESS: i32 = 0; |
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pub const FAILURE: i32 = 1; |
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} |
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/// A trait for implementing arbitrary return types in the `main` function.
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///
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/// The c-main function only supports to return integers as return type.
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/// So, every type implementing the `Termination` trait has to be converted
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/// to an integer.
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///
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/// The default implementations are returning `libc::EXIT_SUCCESS` to indicate
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/// a successful execution. In case of a failure, `libc::EXIT_FAILURE` is returned.
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#[cfg_attr(not(test), lang = "termination")] |
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#[unstable(feature = "termination_trait", issue = "43301")] |
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#[rustc_on_unimplemented =
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"`main` can only return types that implement {Termination}, not `{Self}`"] |
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pub trait Termination { |
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/// Is called to get the representation of the value as status code.
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/// This status code is returned to the operating system.
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fn report(self) -> i32; |
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} |
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#[unstable(feature = "termination_trait", issue = "43301")] |
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impl Termination for () { |
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fn report(self) -> i32 { exit::SUCCESS } |
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} |
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#[unstable(feature = "termination_trait", issue = "43301")] |
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impl<T: Termination, E: Error> Termination for Result<T, E> { |
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fn report(self) -> i32 { |
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match self { |
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Ok(val) => val.report(), |
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Err(err) => { |
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print_error(err); |
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exit::FAILURE |
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} |
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} |
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} |
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} |
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#[unstable(feature = "termination_trait", issue = "43301")] |
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fn print_error<E: Error>(err: E) { |
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eprintln!("Error: {}", err.description()); |
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if let Some(ref err) = err.cause() { |
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eprintln!("Caused by: {}", err.description()); |
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} |
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} |
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#[unstable(feature = "termination_trait", issue = "43301")] |
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impl Termination for ! { |
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fn report(self) -> i32 { unreachable!(); } |
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} |
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#[unstable(feature = "termination_trait", issue = "43301")] |
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impl Termination for bool { |
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fn report(self) -> i32 { |
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if self { exit::SUCCESS } else { exit::FAILURE } |
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} |
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} |
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#[unstable(feature = "termination_trait", issue = "43301")] |
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impl Termination for i32 { |
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fn report(self) -> i32 { |
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self |
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} |
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} |
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