diff --git a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp
index b5cf0d62b976f..af873339e002e 100644
--- a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp
+++ b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp
@@ -1208,35 +1208,44 @@ DynamicLoaderDarwin::GetThreadLocalData(const lldb::ModuleSP module_sp,
 
 bool DynamicLoaderDarwin::UseDYLDSPI(Process *process) {
   Log *log = GetLog(LLDBLog::DynamicLoader);
-  bool use_new_spi_interface = false;
+  bool use_new_spi_interface = true;
 
   llvm::VersionTuple version = process->GetHostOSVersion();
   if (!version.empty()) {
     const llvm::Triple::OSType os_type =
         process->GetTarget().GetArchitecture().GetTriple().getOS();
 
-    // macOS 10.12 and newer
-    if (os_type == llvm::Triple::MacOSX &&
-        version >= llvm::VersionTuple(10, 12))
-      use_new_spi_interface = true;
+    // Older than macOS 10.12
+    if (os_type == llvm::Triple::MacOSX && version < llvm::VersionTuple(10, 12))
+      use_new_spi_interface = false;
 
-    // iOS 10 and newer
-    if (os_type == llvm::Triple::IOS && version >= llvm::VersionTuple(10))
-      use_new_spi_interface = true;
+    // Older than iOS 10
+    if (os_type == llvm::Triple::IOS && version < llvm::VersionTuple(10))
+      use_new_spi_interface = false;
 
-    // tvOS 10 and newer
-    if (os_type == llvm::Triple::TvOS && version >= llvm::VersionTuple(10))
-      use_new_spi_interface = true;
+    // Older than tvOS 10
+    if (os_type == llvm::Triple::TvOS && version < llvm::VersionTuple(10))
+      use_new_spi_interface = false;
 
-    // watchOS 3 and newer
-    if (os_type == llvm::Triple::WatchOS && version >= llvm::VersionTuple(3))
-      use_new_spi_interface = true;
+    // Older than watchOS 3
+    if (os_type == llvm::Triple::WatchOS && version < llvm::VersionTuple(3))
+      use_new_spi_interface = false;
 
-    // NEED_BRIDGEOS_TRIPLE // Any BridgeOS
-    // NEED_BRIDGEOS_TRIPLE if (os_type == llvm::Triple::BridgeOS)
-    // NEED_BRIDGEOS_TRIPLE   use_new_spi_interface = true;
+    // llvm::Triple::BridgeOS and llvm::Triple::XROS always use the new
+    // libdyld SPI interface.
+  } else {
+    // We could not get an OS version string, we are likely not
+    // connected to debugserver and the packets to call the libdyld SPI
+    // will not exist.
+    use_new_spi_interface = false;
   }
 
+  // Corefiles cannot use the libdyld SPI to get the inferior's
+  // binaries, we must find it through metadata or a scan
+  // of the corefile memory.
+  if (!process->IsLiveDebugSession())
+    use_new_spi_interface = false;
+
   if (log) {
     if (use_new_spi_interface)
       LLDB_LOGF(