Enable exception handling int JIT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47079 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 69 insertions, 0 deletions

diff --git a/lib/ExecutionEngine/JIT/JITDwarfEmitter.h b/lib/ExecutionEngine/JIT/JITDwarfEmitter.h
new file mode 100644
index 0000000..72c9b45
--- /dev/null
+++ b/lib/ExecutionEngine/JIT/JITDwarfEmitter.h
@@ -0,0 +1,69 @@
+//===------ JITDwarfEmitter.h - Write dwarf tables into memory ------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a JITDwarfEmitter object that is used by the JIT to
+// write dwarf tables to memory.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H
+#define LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H
+
+namespace llvm {
+
+class Function;
+class MachineCodeEmitter;
+class MachineFunction;
+class MachineModuleInfo;
+class MachineMove;
+class TargetData;
+class TargetMachine;
+class TargetRegisterInfo;
+
+class JITDwarfEmitter {
+  const TargetData* TD;
+  MachineCodeEmitter* MCE;
+  const TargetRegisterInfo* RI;
+  MachineModuleInfo* MMI;
+  JIT& Jit;
+  bool needsIndirectEncoding;
+  bool stackGrowthDirection;
+  
+public:
+  JITDwarfEmitter(JIT& jit);
+
+  unsigned char* EmitExceptionTable(MachineFunction* MF,
+                                    unsigned char* StartFunction, 
+                                    unsigned char* EndFunction);
+
+  void EmitFrameMoves(intptr_t BaseLabelPtr, 
+                      const std::vector<MachineMove> &Moves);
+    
+  unsigned char* EmitCommonEHFrame(const Function* Personality);
+
+  unsigned char* EmitEHFrame(const Function* Personality, 
+                             unsigned char* StartBufferPtr,
+                             unsigned char* StartFunction, 
+                             unsigned char* EndFunction,
+                             unsigned char* ExceptionTable);
+    
+
+  unsigned char* EmitDwarfTable(MachineFunction& F, 
+                                MachineCodeEmitter& MCE,
+                                unsigned char* StartFunction,
+                                unsigned char* EndFunction);
+  
+  void setModuleInfo(MachineModuleInfo* Info) {
+    MMI = Info;
+  }
+};
+
+} // end namespace llvm
+
+#endif // LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H