diff --git a/lldb/source/API/SBThread.cpp b/lldb/source/API/SBThread.cpp
--- a/lldb/source/API/SBThread.cpp
+++ b/lldb/source/API/SBThread.cpp
@@ -40,7 +40,6 @@
 #include "lldb/Target/ThreadPlanStepInstruction.h"
 #include "lldb/Target/ThreadPlanStepOut.h"
 #include "lldb/Target/ThreadPlanStepRange.h"
-#include "lldb/Target/UnixSignals.h"
 #include "lldb/Utility/State.h"
 #include "lldb/Utility/Stream.h"
 #include "lldb/Utility/StructuredData.h"
@@ -319,97 +318,26 @@
   std::unique_lock<std::recursive_mutex> lock;
   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 
-  if (exe_ctx.HasThreadScope()) {
-    Process::StopLocker stop_locker;
-    if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
+  if (dst)
+    *dst = 0;
 
-      StopInfoSP stop_info_sp = exe_ctx.GetThreadPtr()->GetStopInfo();
-      if (stop_info_sp) {
-        std::string thread_stop_desc =
-            exe_ctx.GetThreadPtr()->GetStopDescription();
-        const char *stop_desc = thread_stop_desc.c_str();
-
-        if (stop_desc[0] != '\0') {
-          if (dst)
-            return ::snprintf(dst, dst_len, "%s", stop_desc);
-          else {
-            // NULL dst passed in, return the length needed to contain the
-            // description
-            return ::strlen(stop_desc) + 1; // Include the NULL byte for size
-          }
-        } else {
-          size_t stop_desc_len = 0;
-          switch (stop_info_sp->GetStopReason()) {
-          case eStopReasonTrace:
-          case eStopReasonPlanComplete: {
-            static char trace_desc[] = "step";
-            stop_desc = trace_desc;
-            stop_desc_len =
-                sizeof(trace_desc); // Include the NULL byte for size
-          } break;
-
-          case eStopReasonBreakpoint: {
-            static char bp_desc[] = "breakpoint hit";
-            stop_desc = bp_desc;
-            stop_desc_len = sizeof(bp_desc); // Include the NULL byte for size
-          } break;
-
-          case eStopReasonWatchpoint: {
-            static char wp_desc[] = "watchpoint hit";
-            stop_desc = wp_desc;
-            stop_desc_len = sizeof(wp_desc); // Include the NULL byte for size
-          } break;
-
-          case eStopReasonSignal: {
-            stop_desc =
-                exe_ctx.GetProcessPtr()->GetUnixSignals()->GetSignalAsCString(
-                    stop_info_sp->GetValue());
-            if (stop_desc == nullptr || stop_desc[0] == '\0') {
-              static char signal_desc[] = "signal";
-              stop_desc = signal_desc;
-              stop_desc_len =
-                  sizeof(signal_desc); // Include the NULL byte for size
-            }
-          } break;
-
-          case eStopReasonException: {
-            char exc_desc[] = "exception";
-            stop_desc = exc_desc;
-            stop_desc_len = sizeof(exc_desc); // Include the NULL byte for size
-          } break;
-
-          case eStopReasonExec: {
-            char exc_desc[] = "exec";
-            stop_desc = exc_desc;
-            stop_desc_len = sizeof(exc_desc); // Include the NULL byte for size
-          } break;
-
-          case eStopReasonThreadExiting: {
-            char limbo_desc[] = "thread exiting";
-            stop_desc = limbo_desc;
-            stop_desc_len = sizeof(limbo_desc);
-          } break;
-          default:
-            break;
-          }
+  if (!exe_ctx.HasThreadScope())
+    return 0;
 
-          if (stop_desc && stop_desc[0]) {
-            if (dst)
-              return ::snprintf(dst, dst_len, "%s", stop_desc) +
-                     1; // Include the NULL byte
+  Process::StopLocker stop_locker;
+  if (!stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock()))
+    return 0;
 
-            if (stop_desc_len == 0)
-              stop_desc_len = ::strlen(stop_desc) + 1; // Include the NULL byte
+  std::string thread_stop_desc = exe_ctx.GetThreadPtr()->GetStopDescription();
+  if (thread_stop_desc.empty())
+    return 0;
 
-            return stop_desc_len;
-          }
-        }
-      }
-    }
-  }
   if (dst)
-    *dst = 0;
-  return 0;
+    return ::snprintf(dst, dst_len, "%s", thread_stop_desc.c_str()) + 1;
+
+  // NULL dst passed in, return the length needed to contain the
+  // description.
+  return thread_stop_desc.size() + 1; // Include the NULL byte for size
 }
 
 SBValue SBThread::GetStopReturnValue() {
diff --git a/lldb/source/Target/Thread.cpp b/lldb/source/Target/Thread.cpp
--- a/lldb/source/Target/Thread.cpp
+++ b/lldb/source/Target/Thread.cpp
@@ -596,8 +596,12 @@
 std::string Thread::GetStopDescriptionRaw() {
   StopInfoSP stop_info_sp = GetStopInfo();
   std::string raw_stop_description;
-  if (stop_info_sp && stop_info_sp->IsValid())
+  if (stop_info_sp && stop_info_sp->IsValid()) {
     raw_stop_description = stop_info_sp->GetDescription();
+    assert((!raw_stop_description.empty() ||
+            stop_info_sp->GetStopReason() == eStopReasonNone) &&
+           "StopInfo returned an empty description.");
+  }
   return raw_stop_description;
 }