debugger: remove old workaround recording the entry point

This was for kernel i386 2.6.24-23-ubuntu and gdb 6.8.
This is pre-python, i.e. not supported anymore.

Change-Id: I1d73dbd6fd7730e15ebab334eb9d043b210eb631
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/gdb/gdbengine.cpp

@@ -1372,28 +1372,6 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
         notifyInferiorStopOk();
     }
 
-    if (startParameters().toolChainAbi.os() == Abi::LinuxOS && !m_entryPoint.isEmpty()) {
-        // This is needed as long as we support stock gdb 6.8.
-        if (frame.findChild("addr").data() == m_entryPoint) {
-            // There are two expected reasons for getting here:
-            // 1) For some reason, attaching to a stopped process causes *two*
-            // SIGSTOPs
-            //    when trying to continue (kernel i386 2.6.24-23-ubuntu, gdb 6.8).
-            //    Interestingly enough, on MacOSX no signal is delivered at all.
-            // 2) The explicit tbreak at the entry point we set to query the PID.
-            //    Gdb <= 6.8 reports a frame but no reason, 6.8.50+ reports
-            //    everything.
-            // The case of the user really setting a breakpoint at _start is simply
-            // unsupported.
-            if (!inferiorPid()) // For programs without -pthread under gdb <= 6.8.
-                postCommand("info proc", CB(handleInfoProc));
-            continueInferiorInternal();
-            return;
-        }
-        // We are past the initial stop(s). No need to waste time on further checks.
-        m_entryPoint.clear();
-    }
-
     if (isQmlStepBreakpoint1(rid))
         return;
 

src/plugins/debugger/gdb/gdbengine.h

@@ -484,8 +484,6 @@ private: ////////// Inferior Management //////////
     void maybeHandleInferiorPidChanged(const QString &pid);
     void handleInfoProc(const GdbResponse &response);
 
-    QByteArray m_entryPoint;
-
 private: ////////// View & Data Stuff //////////
 
     void selectThread(int index);

src/plugins/debugger/gdb/termgdbadapter.cpp

@@ -162,9 +162,6 @@ void TermGdbAdapter::handleStubAttached(const GdbResponse &response)
         showMessage(_("INFERIOR ATTACHED"));
 #endif // Q_OS_WIN
         m_engine->handleInferiorPrepared();
-#ifdef Q_OS_LINUX
-        m_engine->postCommand("-stack-list-frames 0 0", CB(handleEntryPoint));
-#endif
         break;
     case GdbResultError:
         m_engine->notifyInferiorSetupFailed(QString::fromLocal8Bit(response.data.findChild("msg").data()));
@@ -182,17 +179,6 @@ void TermGdbAdapter::runEngine()
     m_engine->continueInferiorInternal();
 }
 
-#ifdef Q_OS_LINUX
-void TermGdbAdapter::handleEntryPoint(const GdbResponse &response)
-{
-    if (response.resultClass == GdbResultDone) {
-        GdbMi stack = response.data.findChild("stack");
-        if (stack.isValid() && stack.childCount() == 1)
-            m_engine->m_entryPoint = stack.childAt(0).findChild("addr").data();
-    }
-}
-#endif
-
 void TermGdbAdapter::interruptInferior()
 {
     const qint64 attachedPID = m_engine->inferiorPid();

src/plugins/debugger/gdb/termgdbadapter.h

@@ -68,9 +68,6 @@ private:
     AbstractGdbProcess *gdbProc() { return &m_gdbProc; }
 
     void handleStubAttached(const GdbResponse &response);
-#ifdef Q_OS_LINUX
-    void handleEntryPoint(const GdbResponse &response);
-#endif
 
     Q_SLOT void handleInferiorSetupOk();
     Q_SLOT void stubExited();