Implement LLVM JIT side of GDB JIT debugging interface

include/llvm/Target/TargetOptions.h

 //===-- llvm/Target/TargetOptions.h - Target Options ------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines command line option flags that are shared across various
 // targets.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_TARGET_TARGETOPTIONS_H
 #define LLVM_TARGET_TARGETOPTIONS_H
 
 namespace llvm {
+  // Possible float ABI settings. Used with FloatABIType in TargetOptions.h.
+  namespace FloatABI {
+    enum ABIType {
+      Default, // Target-specific (either soft of hard depending on triple, etc).
+      Soft, // Soft float.
+      Hard  // Hard float.
+    };
+  }
+  
   /// PrintMachineCode - This flag is enabled when the -print-machineinstrs
   /// option is specified on the command line, and should enable debugging
   /// output from the code generator.
   extern bool PrintMachineCode;
 
   /// NoFramePointerElim - This flag is enabled when the -disable-fp-elim is
   /// specified on the command line.  If the target supports the frame pointer
   /// elimination optimization, this option should disable it.
   extern bool NoFramePointerElim;
 
@@ skipping 49 matching lines @@
   /// Default selects the target's default behavior. Soft selects the ABI for
   /// UseSoftFloat, but does not inidcate that FP hardware may not be used.
   /// Such a combination is unfortunately popular (e.g. arm-apple-darwin).
   /// Hard presumes that the normal FP ABI is used.
   extern FloatABI::ABIType FloatABIType;
 
   /// NoZerosInBSS - By default some codegens place zero-initialized data to
   /// .bss section. This flag disables such behaviour (necessary, e.g. for
   /// crt*.o compiling).
   extern bool NoZerosInBSS;
-  
-  /// ExceptionHandling - This flag indicates that exception information should
-  /// be emitted.
-  extern bool ExceptionHandling;
 
-  /// JitEmitDebugInfo - This flag indicates that the JIT should try to emit
+  /// DwarfExceptionHandling - This flag indicates that Dwarf exception
+  /// information should be emitted.
+  extern bool DwarfExceptionHandling;
+
+  /// SjLjExceptionHandling - This flag indicates that SJLJ exception
+  /// information should be emitted.
+  extern bool SjLjExceptionHandling;
+
+  /// JITEmitDebugInfo - This flag indicates that the JIT should try to emit
   /// debug information and notify a debugger about it.
-  extern bool JitEmitDebugInfo;
+  extern bool JITEmitDebugInfo;
 
   /// UnwindTablesMandatory - This flag indicates that unwind tables should
   /// be emitted for all functions.
   extern bool UnwindTablesMandatory;
 
   /// PerformTailCallOpt - This flag is enabled when -tailcallopt is specified
   /// on the commandline. When the flag is on, the target will perform tail call
   /// optimization (pop the caller's stack) providing it supports it.
   extern bool PerformTailCallOpt;
 
@@ skipping 13 matching lines @@
   /// compile time.
   extern bool EnableFastISel;
   
   /// StrongPHIElim - This flag enables more aggressive PHI elimination
   /// wth earlier copy coalescing.
   extern bool StrongPHIElim;
 
 } // End llvm namespace
 
 #endif