llvm/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
  17 #ifndef NDEBUG
  18 #include "llvm/Support/raw_ostream.h"
  19 #endif // ifndef NDEBUG
  20
  21 // Include the platform-specific parts of this class.
  22 #ifdef LLVM_ON_UNIX
  23 #include "Unix/Memory.inc"
  24 #endif
  25 #ifdef _WIN32
  26 #include "Windows/Memory.inc"
  27 #endif
  28
  29 #ifndef NDEBUG
  30
  31 namespace llvm {
  32 namespace sys {
  33
  34 raw_ostream &operator<<(raw_ostream &OS, const Memory::ProtectionFlags &PF) {
  35   assert((PF & ~(Memory::MF_READ | Memory::MF_WRITE | Memory::MF_EXEC)) == 0 &&
  36          "Unrecognized flags");
  37
  38   return OS << (PF & Memory::MF_READ ? 'R' : '-')
  39             << (PF & Memory::MF_WRITE ? 'W' : '-')
  40             << (PF & Memory::MF_EXEC ? 'X' : '-');
  41 }
  42
  43 raw_ostream &operator<<(raw_ostream &OS, const MemoryBlock &MB) {
  44   return OS << "[ " << MB.base() << " .. "
  45             << (void *)((char *)MB.base() + MB.allocatedSize()) << " ] ("
  46             << MB.allocatedSize() << " bytes)";
  47 }
  48
  49 } // end namespace sys
  50 } // end namespace llvm
  51
  52 #endif // ifndef NDEBUG