| // Protocol Buffers - Google's data interchange format |
| // Copyright 2023 Google LLC. All rights reserved. |
| // |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file or at |
| // https://developers.google.com/open-source/licenses/bsd |
| |
| use std::alloc::{alloc, Layout}; |
| |
| #[no_mangle] |
| extern "C" fn proto2_rust_alloc(size: usize, align: usize) -> *mut u8 { |
| if size == 0 { |
| // A 0-sized layout is legal but the global allocator isn't required to support |
| // it so return a dangling pointer instead. |
| std::ptr::null_mut::<u8>().wrapping_add(align) |
| } else { |
| let layout = Layout::from_size_align(size, align).unwrap(); |
| unsafe { alloc(layout) } |
| } |
| } |
