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
13namespace LIBC_NAMESPACE_DECL {
14
15extern "C" {
16extern uintptr_t __fini_array_start[];
17extern uintptr_t __fini_array_end[];
18}
19
20using FiniCallback = void(void);
21
22extern "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

source code of libc/startup/baremetal/fini.cpp