On Darwin ARM, memory needs special handling to do JIT. This patch expands

this handling to work properly for modifying stub functions, relocations
back to entry points after JIT compilation, etc..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57013 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/include/llvm/ExecutionEngine/JITMemoryManager.h b/include/llvm/ExecutionEngine/JITMemoryManager.h
index e1f2763e1d..0d79d14d71 100644
--- a/include/llvm/ExecutionEngine/JITMemoryManager.h
+++ b/include/llvm/ExecutionEngine/JITMemoryManager.h
@@ -35,6 +35,14 @@ public:
   /// JIT Memory Manager if the client does not provide one to the JIT.
   static JITMemoryManager *CreateDefaultMemManager();
   
+  /// setMemoryWritable - When code generation is in progress,
+  /// the code pages may need permissions changed.
+  virtual void setMemoryWritable(void) = 0;
+
+  /// setMemoryExecutable - When code generation is done and we're ready to
+  /// start execution, the code pages may need permissions changed.
+  virtual void setMemoryExecutable(void) = 0;
+
   //===--------------------------------------------------------------------===//
   // Global Offset Table Management
   //===--------------------------------------------------------------------===//