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
35// Android sometimes includes malloc.h no matter what, which yields to
36// conflicting return types for mallinfo() if we use our own structure. So if
37// struct mallinfo is declared (#define courtesy of malloc.h), use it directly.
38#if STRUCT_MALLINFO_DECLARED
39#define SCUDO_MALLINFO mallinfo
40#else
41#define SCUDO_MALLINFO __scudo_mallinfo
42#endif
43
44#ifndef M_DECAY_TIME
45#define M_DECAY_TIME -100
46#endif
47
48#ifndef M_PURGE
49#define M_PURGE -101
50#endif
51
52#endif // SCUDO_WRAPPERS_C_H_
53