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Chris Lattner2a1744f2009-09-09 23:46:42 +00001//===- MemoryObject.cpp - Abstract memory interface -----------------------===//
Sean Callanan251ef612009-09-09 22:49:13 +00002//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/Support/MemoryObject.h"
Chris Lattner2a1744f2009-09-09 23:46:42 +000011using namespace llvm;
Sean Callanan251ef612009-09-09 22:49:13 +000012
Chris Lattner2a1744f2009-09-09 23:46:42 +000013MemoryObject::~MemoryObject() {
14}
15
16int MemoryObject::readBytes(uint64_t address,
17 uint64_t size,
Benjamin Kramer49a6a8d2013-05-24 10:54:58 +000018 uint8_t* buf) const {
Chris Lattner2a1744f2009-09-09 23:46:42 +000019 uint64_t current = address;
20 uint64_t limit = getBase() + getExtent();
Benjamin Kramerf66f76c2011-08-27 07:45:46 +000021
22 if (current + size > limit)
23 return -1;
24
25 while (current - address < size) {
Chris Lattner2a1744f2009-09-09 23:46:42 +000026 if (readByte(current, &buf[(current - address)]))
27 return -1;
28
29 current++;
Sean Callanan251ef612009-09-09 22:49:13 +000030 }
31
Chris Lattner2a1744f2009-09-09 23:46:42 +000032 return 0;
Sean Callanan251ef612009-09-09 22:49:13 +000033}