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//===-- MemoryManager.cpp -------------------------------------------------===//
//
// The KLEE Symbolic Virtual Machine
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Common.h"
#include "CoreStats.h"
#include "Memory.h"
#include "MemoryManager.h"
#include "klee/ExecutionState.h"
#include "klee/Expr.h"
#include "klee/Solver.h"
#include "llvm/Support/CommandLine.h"
using namespace klee;
/***/
MemoryManager::~MemoryManager() {
while (!objects.empty()) {
MemoryObject *mo = objects.back();
objects.pop_back();
delete mo;
}
}
MemoryObject *MemoryManager::allocate(uint64_t size, bool isLocal, bool isGlobal,
const llvm::Value *allocSite) {
if (size>10*1024*1024) {
klee_warning_once(0, "failing large alloc: %u bytes", (unsigned) size);
return 0;
}
uint64_t address = (uint64_t) (unsigned long) malloc((unsigned) size);
if (!address)
return 0;
++stats::allocations;
MemoryObject *res = new MemoryObject(address, size, isLocal, isGlobal, false,
allocSite);
objects.push_back(res);
return res;
}
MemoryObject *MemoryManager::allocateFixed(uint64_t address, uint64_t size,
const llvm::Value *allocSite) {
for (objects_ty::iterator it = objects.begin(), ie = objects.end();
it != ie; ++it) {
MemoryObject *mo = *it;
assert(!(address+size > mo->address && address < mo->address+mo->size) &&
"allocated an overlapping object");
}
++stats::allocations;
MemoryObject *res = new MemoryObject(address, size, false, true, true,
allocSite);
objects.push_back(res);
return res;
}
void MemoryManager::deallocate(const MemoryObject *mo) {
assert(0);
}
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