1//===-- wrappers_c.h --------------------------------------------*- C++ -*-===//
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#ifndef SCUDO_WRAPPERS_C_H_
10#define SCUDO_WRAPPERS_C_H_
11
12#include "platform.h"
13#include "stats.h"
14
15// Bionic's struct mallinfo consists of size_t (mallinfo(3) uses int).
16#if SCUDO_ANDROID
17typedef size_t __scudo_mallinfo_data_t;
18#else
19typedef int __scudo_mallinfo_data_t;
20#endif
21
22struct __scudo_mallinfo {
23 __scudo_mallinfo_data_t arena;
24 __scudo_mallinfo_data_t ordblks;
25 __scudo_mallinfo_data_t smblks;
26 __scudo_mallinfo_data_t hblks;
27 __scudo_mallinfo_data_t hblkhd;
28 __scudo_mallinfo_data_t usmblks;
29 __scudo_mallinfo_data_t fsmblks;
30 __scudo_mallinfo_data_t uordblks;
31 __scudo_mallinfo_data_t fordblks;
32 __scudo_mallinfo_data_t keepcost;
33};
34
35struct __scudo_mallinfo2 {
36 size_t arena;
37 size_t ordblks;
38 size_t smblks;
39 size_t hblks;
40 size_t hblkhd;
41 size_t usmblks;
42 size_t fsmblks;
43 size_t uordblks;
44 size_t fordblks;
45 size_t keepcost;
46};
47
48// Android sometimes includes malloc.h no matter what, which yields to
49// conflicting return types for mallinfo() if we use our own structure. So if
50// struct mallinfo is declared (#define courtesy of malloc.h), use it directly.
51#if STRUCT_MALLINFO_DECLARED
52#define SCUDO_MALLINFO mallinfo
53#else
54#define SCUDO_MALLINFO __scudo_mallinfo
55#endif
56
57#if !SCUDO_ANDROID || !_BIONIC
58extern "C" void malloc_postinit();
59extern HIDDEN scudo::Allocator<scudo::Config, malloc_postinit> Allocator;
60#endif
61
62#endif // SCUDO_WRAPPERS_C_H_
63