summary refs log tree commit diff
path: root/src/test/run-pass/auxiliary/allocator-dummy.rs
blob: f4a32a93dfb71ee4ade576b636bab246cedf69c8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
// Copyright 2015 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.

// no-prefer-dynamic

#![feature(allocator, core_intrinsics, panic_unwind)]
#![allocator]
#![crate_type = "rlib"]
#![no_std]

extern crate unwind;

pub static mut HITS: usize = 0;

type size_t = usize;

extern {
    fn malloc(size: usize) -> *mut u8;
    fn free(ptr: *mut u8);
    fn calloc(size: usize, amt: usize) -> *mut u8;
    fn realloc(ptr: *mut u8, size: usize) -> *mut u8;
}

#[no_mangle]
pub extern fn __rust_allocate(size: usize, align: usize) -> *mut u8 {
    unsafe {
        HITS += 1;
        malloc(size as size_t) as *mut u8
    }
}

#[no_mangle]
pub extern fn __rust_allocate_zeroed(size: usize, _align: usize) -> *mut u8 {
    unsafe { calloc(size as size_t, 1) as *mut u8 }
}

#[no_mangle]
pub extern fn __rust_deallocate(ptr: *mut u8, old_size: usize, align: usize) {
    unsafe {
        HITS += 1;
        free(ptr as *mut _)
    }
}

#[no_mangle]
pub extern fn __rust_reallocate(ptr: *mut u8, old_size: usize, size: usize,
                                align: usize) -> *mut u8 {
    unsafe {
        realloc(ptr as *mut _, size as size_t) as *mut u8
    }
}

#[no_mangle]
pub extern fn __rust_reallocate_inplace(ptr: *mut u8, old_size: usize,
                                        size: usize, align: usize) -> usize {
    unsafe { core::intrinsics::abort() }
}

#[no_mangle]
pub extern fn __rust_usable_size(size: usize, align: usize) -> usize {
    unsafe { core::intrinsics::abort() }
}