Initial ARM JIT support by Raul Fernandes Herbster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37926 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 51 insertions, 0 deletions

diff --git a/lib/Target/ARM/ARMJITInfo.h b/lib/Target/ARM/ARMJITInfo.h
new file mode 100644
index 0000000000..fc33cc2545
--- /dev/null
+++ b/lib/Target/ARM/ARMJITInfo.h
@@ -0,0 +1,51 @@
+//===- ARMJITInfo.h - ARM implementation of the JIT interface  --*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the Raul Herbster (raulherbster [at] gmail [dot]
+// com) and is distributed under the University of Illinois Open Source License.
+// See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the declaration of the ARMJITInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ARMJITINFO_H
+#define ARMJITINFO_H
+
+#include "llvm/Target/TargetJITInfo.h"
+
+namespace llvm {
+  class ARMTargetMachine;
+
+  class ARMJITInfo : public TargetJITInfo {
+    ARMTargetMachine &TM;
+  public:
+    ARMJITInfo(ARMTargetMachine &tm) : TM(tm) {useGOT = 0;}
+
+    /// replaceMachineCodeForFunction - Make it so that calling the function
+    /// whose machine code is at OLD turns into a call to NEW, perhaps by
+    /// overwriting OLD with a branch to NEW.  This is used for self-modifying
+    /// code.
+    ///
+    virtual void replaceMachineCodeForFunction(void *Old, void *New);
+
+    /// emitFunctionStub - Use the specified MachineCodeEmitter object to emit a
+    /// small native function that simply calls the function at the specified
+    /// address.
+    virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
+
+    /// getLazyResolverFunction - Expose the lazy resolver to the JIT.
+    virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
+
+    /// relocate - Before the JIT can run a block of code that has been emitted,
+    /// it must rewrite the code to contain the actual addresses of any
+    /// referenced global symbols.
+    virtual void relocate(void *Function, MachineRelocation *MR,
+                          unsigned NumRelocs, unsigned char* GOTBase);
+  };
+}
+
+#endif