Initial KLEE checkin.

 - Lots more tweaks, documentation, and web page content is needed,
   but this should compile & work on OS X & Linux.


git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 69 insertions, 0 deletions

diff --git a/lib/Core/MemoryManager.cpp b/lib/Core/MemoryManager.cpp
new file mode 100644
index 00000000..cec7b7d1
--- /dev/null
+++ b/lib/Core/MemoryManager.cpp
@@ -0,0 +1,69 @@
+//===-- 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);
+}