lib/Support/Memory.cpp

   1 //===- Memory.cpp - Memory Handling Support ---------------------*- 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 // This file defines some helpful functions for allocating memory and dealing
  10 // with memory mapped files
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/Support/Memory.h"
  15 #include "llvm/Config/llvm-config.h"
  16 #include "llvm/Support/Valgrind.h"
  17
  18 #ifndef NDEBUG
  19 #include "llvm/Support/raw_ostream.h"
  20 #endif // ifndef NDEBUG
  21
  22 // Include the platform-specific parts of this class.
  23 #ifdef LLVM_ON_UNIX
  24 #include "Unix/Memory.inc"
  25 #endif
  26 #ifdef _WIN32
  27 #include "Windows/Memory.inc"
  28 #endif
  29
  30 #ifndef NDEBUG
  31
  32 namespace llvm {
  33 namespace sys {
  34
  35 raw_ostream &operator<<(raw_ostream &OS, const Memory::ProtectionFlags &PF) {
  36   assert((PF & ~(Memory::MF_READ | Memory::MF_WRITE | Memory::MF_EXEC)) == 0 &&
  37          "Unrecognized flags");
  38
  39   return OS << (PF & Memory::MF_READ ? 'R' : '-')
  40             << (PF & Memory::MF_WRITE ? 'W' : '-')
  41             << (PF & Memory::MF_EXEC ? 'X' : '-');
  42 }
  43
  44 raw_ostream &operator<<(raw_ostream &OS, const MemoryBlock &MB) {
  45   return OS << "[ " << MB.base() << " .. "
  46             << (void *)((char *)MB.base() + MB.allocatedSize()) << " ] ("
  47             << MB.allocatedSize() << " bytes)";
  48 }
  49
  50 } // end namespace sys
  51 } // end namespace llvm
  52
  53 #endif // ifndef NDEBUG