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, 50 insertions, 0 deletions

diff --git a/lib/Core/ExternalDispatcher.h b/lib/Core/ExternalDispatcher.h
new file mode 100644
index 00000000..fc8f80f4
--- /dev/null
+++ b/lib/Core/ExternalDispatcher.h
@@ -0,0 +1,50 @@
+//===-- ExternalDispatcher.h ------------------------------------*- C++ -*-===//
+//
+//                     The KLEE Symbolic Virtual Machine
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef KLEE_EXTERNALDISPATCHER_H
+#define KLEE_EXTERNALDISPATCHER_H
+
+#include <map>
+#include "llvm/System/DynamicLibrary.h"
+
+namespace llvm {
+  class ExecutionEngine;
+  class Instruction;
+  class Function;
+  class FunctionType;
+  class Module;
+}
+
+namespace klee {
+  class ExternalDispatcher {
+  private:
+    typedef std::map<const llvm::Instruction*,llvm::Function*> dispatchers_ty;
+    dispatchers_ty dispatchers;
+    llvm::Module *dispatchModule;
+    llvm::ExecutionEngine *executionEngine;
+    llvm::sys::DynamicLibrary dl_symbols;
+    std::map<std::string, void*> preboundFunctions;
+    
+    llvm::Function *createDispatcher(llvm::Function *f, llvm::Instruction *i);
+    bool runProtectedCall(llvm::Function *f, uint64_t *args);
+    
+  public:
+    ExternalDispatcher();
+    ~ExternalDispatcher();
+
+    /* Call the given function using the parameter passing convention of
+     * ci with arguments in args[1], args[2], ... and writing the result
+     * into args[0].
+     */
+    bool executeCall(llvm::Function *function, llvm::Instruction *i, uint64_t *args);
+    void *resolveSymbol(const std::string &name);
+  };  
+}
+
+#endif