debugger: handle new *stopped output indication reasons in gdb 7.4

Task-number: QTCREATORBUG-6763
Change-Id: I7a95bdbb9ab7b85beb19b7d390a10a5d629dc7e7
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/gdb/gdbengine.cpp

@@ -656,7 +656,7 @@ void GdbEngine::handleResponse(const QByteArray &buff)
             break;
         }
         default: {
-            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
+            qDebug() << "UNKNOWN RESPONSE TYPE '" << c << "'. REST: " << from;
             break;
         }
     }
@@ -1535,11 +1535,24 @@ void GdbEngine::handleStop1(const GdbMi &data)
     // dState changed from InferiorStopRequested(13) to InferiorStopOk(14).
 
     const QByteArray reason = data.findChild("reason").data();
+    const QByteArray func = data.findChild("frame").findChild("from").data();
     const DebuggerStartParameters &sp = startParameters();
     const Abi abi = sp.toolChainAbi;
 
     bool isStopperThread = false;
 
+    if (sp.useTerminal
+            && reason == "signal-received"
+            && data.findChild("signal-name").data() == "SIGSTOP"
+            && (func.endsWith("/ld-linux.so.2")
+                || func.endsWith("/ld-linux-x86-64.so.2")))
+    {
+        // Ignore signals from the process stub.
+        showMessage(_("INTERNAL CONTINUE AFTER SIGSTOP FROM STUB"), LogMisc);
+        continueInferiorInternal();
+        return;
+    }
+
     if (abi.os() == Abi::WindowsOS
             && sp.useTerminal
             && reason == "signal-received"
@@ -1547,7 +1560,7 @@ void GdbEngine::handleStop1(const GdbMi &data)
     {
         if (!m_actingOnExpectedStop) {
             // Ignore signals from command line start up traps.
-            showMessage(_("INTERNAL CONTINUE"), LogMisc);
+            showMessage(_("INTERNAL CONTINUE AFTER SIGTRAP"), LogMisc);
             continueInferiorInternal();
             return;
         }