compiler-rt/lib/scudo/standalone/wrappers_c.h

   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
  17 typedef size_t __scudo_mallinfo_data_t;
  18 #else
  19 typedef int __scudo_mallinfo_data_t;
  20 #endif
  21
  22 struct __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 struct __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
  58 extern "C" void malloc_postinit();
  59 extern HIDDEN scudo::Allocator<scudo::Config, malloc_postinit> Allocator;
  60 #endif
  61
  62 #endif // SCUDO_WRAPPERS_C_H_