1 | //===-- Implementation file of __libc_fini_array --------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "src/__support/macros/config.h" |
10 | #include <stddef.h> |
11 | #include <stdint.h> |
12 | |
13 | namespace LIBC_NAMESPACE_DECL { |
14 | |
15 | extern "C" { |
16 | extern uintptr_t __fini_array_start[]; |
17 | extern uintptr_t __fini_array_end[]; |
18 | } |
19 | |
20 | using FiniCallback = void(void); |
21 | |
22 | extern "C" void __libc_fini_array(void) { |
23 | size_t fini_array_size = __fini_array_end - __fini_array_start; |
24 | for (size_t i = fini_array_size; i > 0; --i) |
25 | reinterpret_cast<FiniCallback *>(__fini_array_start[i - 1])(); |
26 | } |
27 | |
28 | } // namespace LIBC_NAMESPACE_DECL |
29 | |