diff --git a/llvm/lib/ExecutionEngine/Orc/DebuggerSupportPlugin.cpp b/llvm/lib/ExecutionEngine/Orc/DebuggerSupportPlugin.cpp
diff --git a/llvm/lib/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.cpp b/llvm/lib/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.cpp
@@ -10,6 +10,7 @@
 
 #include "llvm/ExecutionEngine/JITSymbol.h"
 #include "llvm/Support/BinaryStreamReader.h"
+#include "llvm/Support/FormatVariadic.h"
 #include "llvm/Support/ManagedStatic.h"
 
 #include <cstdint>
@@ -70,10 +71,18 @@ using namespace llvm::orc;
 ManagedStatic<std::mutex> JITDebugLock;
 
 // Register debug object, return error message or null for success.
-static void registerJITLoaderGDBImpl(ExecutorAddrRange DebugObjRange) {
+static void registerJITLoaderGDBImpl(const char *ObjAddr, size_t Size) {
+  LLVM_DEBUG({
+    dbgs() << "Registering debug object with GDB JIT interface "
+           << formatv("([{0:x16} -- {1:x16}])",
+                      reinterpret_cast<uintptr_t>(ObjAddr),
+                      reinterpret_cast<uintptr_t>(ObjAddr + Size))
+           << "\n";
+  });
+
   jit_code_entry *E = new jit_code_entry;
-  E->symfile_addr = DebugObjRange.Start.toPtr<const char *>();
-  E->symfile_size = DebugObjRange.size().getValue();
+  E->symfile_addr = ObjAddr;
+  E->symfile_size = Size;
   E->prev_entry = nullptr;
 
   std::lock_guard<std::mutex> Lock(*JITDebugLock);
@@ -93,10 +102,26 @@ static void registerJITLoaderGDBImpl(ExecutorAddrRange DebugObjRange) {
   __jit_debug_register_code();
 }
 
+extern "C" orc::shared::CWrapperFunctionResult
+llvm_orc_registerJITLoaderGDBAllocAction(const char *Data, size_t Size) {
+  using namespace orc::shared;
+  return WrapperFunction<SPSError()>::handle(nullptr, 0,
+                                             [=]() -> Error {
+                                               registerJITLoaderGDBImpl(Data,
+                                                                        Size);
+                                               return Error::success();
+                                             })
+      .release();
+}
+
 extern "C" orc::shared::CWrapperFunctionResult
 llvm_orc_registerJITLoaderGDBWrapper(const char *Data, uint64_t Size) {
   using namespace orc::shared;
   return WrapperFunction<void(SPSExecutorAddrRange)>::handle(
-             Data, Size, registerJITLoaderGDBImpl)
+             Data, Size,
+             [](ExecutorAddrRange R) {
+               registerJITLoaderGDBImpl(R.Start.toPtr<char *>(),
+                                        R.size().getValue());
+             })
       .release();
 }
diff --git a/llvm/test/ExecutionEngine/JITLink/X86/MachO_gdb_jit_debuginfo_register.s b/llvm/test/ExecutionEngine/JITLink/X86/MachO_gdb_jit_debuginfo_register.s
@@ -0,0 +1,21 @@
+# REQUIRES: asserts
+# RUN: llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o %t %s
+# RUN: llvm-jitlink -debug-only=orc -noexec %t 2>&1 | FileCheck %s
+#
+# Check that presence of a "__DWARF" section triggers the
+# GDBJITDebugInfoRegistrationPlugin.
+#
+# CHECK: Registering debug object with GDB JIT interface
+
+	.section	__TEXT,__text,regular,pure_instructions
+	.globl	_main
+	.p2align	4, 0x90
+_main:
+	xorl	%eax, %eax
+	retq
+
+	.section	__DWARF,__debug_str,regular,debug
+Linfo_string:
+	.asciz	"test dwarf string"
+
+.subsections_via_symbols
diff --git a/llvm/test/ExecutionEngine/JITLink/X86/MachO_skip_debug_sections.s b/llvm/test/ExecutionEngine/JITLink/X86/MachO_skip_debug_sections.s
diff --git a/llvm/tools/llvm-jitlink/llvm-jitlink.cpp b/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
@@ -16,6 +16,7 @@
 
 #include "llvm/BinaryFormat/Magic.h"
 #include "llvm/ExecutionEngine/Orc/DebugObjectManagerPlugin.h"
+#include "llvm/ExecutionEngine/Orc/DebuggerSupportPlugin.h"
 #include "llvm/ExecutionEngine/Orc/ELFNixPlatform.h"
 #include "llvm/ExecutionEngine/Orc/EPCDebugObjectRegistrar.h"
 #include "llvm/ExecutionEngine/Orc/EPCDynamicLibrarySearchGenerator.h"
@@ -987,8 +988,13 @@ Session::Session(std::unique_ptr<ExecutorProcessControl> EPC, Error &Err)
     ExitOnErr(loadProcessSymbols(*this));
   ExitOnErr(loadDylibs(*this));
 
-  // Set up the platform.
   auto &TT = ES.getExecutorProcessControl().getTargetTriple();
+
+  if (TT.isOSBinFormatMachO())
+    ObjLayer.addPlugin(ExitOnErr(
+        GDBJITDebugInfoRegistrationPlugin::Create(this->ES, *MainJD, TT)));
+
+  // Set up the platform.
   if (TT.isOSBinFormatMachO() && !OrcRuntime.empty()) {
     if (auto P =
             MachOPlatform::Create(ES, ObjLayer, *MainJD, OrcRuntime.c_str()))