Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56303 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Memory.cpp b/lib/System/Memory.cpp
index 3660bcb..2fc6a23 100644
--- a/lib/System/Memory.cpp
+++ b/lib/System/Memory.cpp
@@ -58,3 +58,14 @@
#endif // end PPC
}
+
+bool llvm::sys::Memory::SetRXPrivilege(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
+}