2 files changed, 30 insertions, 2 deletions
diff --git a/lib/System/Unix/Memory.inc b/lib/System/Unix/Memory.inc
index 646311d8cd..cfc5a6871d 100644
--- a/lib/System/Unix/Memory.inc
+++ b/lib/System/Unix/Memory.inc
@@ -127,3 +127,24 @@ bool llvm::sys::Memory::setExecutable (MemoryBlock &M, std::string *ErrMsg) {
 #endif
 }
 
+bool llvm::sys::Memory::setRangeWritable(const void *Addr, size_t Size) {
+#if defined(__APPLE__) && defined(__arm__)
+  kern_return_t kr = vm_protect(mach_task_self(), (vm_address_t)Addr,
+                                (vm_size_t)Size, 0,
+                                VM_PROT_READ | VM_PROT_WRITE);
+  return KERN_SUCCESS == kr;
+#else
+  return true;
+#endif
+}
+
+bool llvm::sys::Memory::setRangeExecutable(const void *Addr, size_t Size) {
+#if defined(__APPLE__) && defined(__arm__)
+  kern_return_t kr = vm_protect(mach_task_self(), (vm_address_t)Addr,
+                                (vm_size_t)Size, 0,
+                                VM_PROT_READ | VM_PROT_EXECUTE | VM_PROT_COPY);
+  return KERN_SUCCESS == kr;
+#else
+  return true;
+#endif
+}
diff --git a/lib/System/Win32/Memory.inc b/lib/System/Win32/Memory.inc
index 620801583a..5e5cf7a676 100644
--- a/lib/System/Win32/Memory.inc
+++ b/lib/System/Win32/Memory.inc
@@ -53,13 +53,20 @@ bool Memory::ReleaseRWX(MemoryBlock &M, std::string *ErrMsg) {
   return false;
 }
 
-bool Memory::setWritable (MemoryBlock &M, std::string *ErrMsg) {
+bool Memory::setWritable(MemoryBlock &M, std::string *ErrMsg) {
   return true;
 }
 
-bool Memory::setExecutable (MemoryBlock &M, std::string *ErrMsg) {
+bool Memory::setExecutable(MemoryBlock &M, std::string *ErrMsg) {
   return false;
 }
 
+bool Memory::setRangeWritable(const void *Addr, size_t Size) {
+  return true;
 }
 
+bool Memory::setRangeExecutable(const void *Addr, size_t Size) {
+  return false;
+}
+
+}