Index: lldb/source/Target/Platform.cpp
===================================================================
--- lldb/source/Target/Platform.cpp
+++ lldb/source/Target/Platform.cpp
@@ -1822,6 +1822,9 @@
 size_t Platform::GetSoftwareBreakpointTrapOpcode(Target &target,
                                                  BreakpointSite *bp_site) {
   ArchSpec arch = target.GetArchitecture();
+  if (!arch.IsValid())
+    return 0;
+
   const uint8_t *trap_opcode = nullptr;
   size_t trap_opcode_size = 0;