debugger: fix frame switching when using core files

src/plugins/debugger/gdb/coregdbadapter.cpp

@@ -149,6 +149,9 @@ void CoreGdbAdapter::handleTargetCore1(const GdbResponse &response)
             emit inferiorStartFailed(tr("No binary found."));
         } else {
             m_executable = console.data().mid(pos1 + 1, pos2 - pos1 - 1);
+            // Strip off command line arguments. FIXME: make robust.
+            if (m_executable.contains(' '))
+                m_executable = m_executable.section(' ', 0, 0);
             QTC_ASSERT(!m_executable.isEmpty(), /**/);
             // Finish extra round.
             m_engine->postCommand(_("detach"), CB(handleDetach1));

src/plugins/debugger/gdb/gdbengine.cpp

@@ -2368,7 +2368,7 @@ void GdbEngine::handleStackListFrames(const GdbResponse &response)
 void GdbEngine::activateFrame(int frameIndex)
 {
     m_manager->resetLocation();
-    if (state() != InferiorStopped)
+    if (state() != InferiorStopped && state() != InferiorUnrunnable)
         return;
 
     StackHandler *stackHandler = manager()->stackHandler();