Debugger: Pass symbol file to LLDB and use it

Instead of guessing from the executable.

Change-Id: I5f57020446bc5e0f7915dac487a32d673eb97952
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

share/qtcreator/debugger/lldbbridge.py

@@ -111,6 +111,7 @@ class Dumper(DumperBase):
         self.runEngineAttempted = False
 
         self.executable_ = None
+        self.symbolFile_ = None
         self.startMode_ = None
         self.processArgs_ = None
         self.attachPid_ = None
@@ -857,6 +858,7 @@ class Dumper(DumperBase):
         self.remoteChannel_ = args.get('remotechannel', '')
         self.platform_ = args.get('platform', '')
         self.nativeMixed = int(args.get('nativemixed', 0))
+        self.symbolFile_ = args['symbolfile'];
         self.workingDirectory_ = args.get('workingdirectory', '')
         if self.workingDirectory_ == '':
             try:
@@ -878,10 +880,8 @@ class Dumper(DumperBase):
         if self.sysRoot_:
             self.debugger.SetCurrentPlatformSDKRoot(self.sysRoot_)
 
-        exefile = None if self.attachPid_ > 0 else self.executable_
-
         self.target = self.debugger.CreateTarget(
-            exefile, None, self.platform_, True, error)
+            self.symbolFile_, None, self.platform_, True, error)
 
         if not error.Success():
             self.report(self.describeError(error))

src/plugins/debugger/lldb/lldbengine.cpp

@@ -279,6 +279,7 @@ void LldbEngine::setupEngine()
     cmd2.arg("environment", rp.inferior.environment.toStringList());
     cmd2.arg("processargs", toHex(QtcProcess::splitArgs(rp.inferior.commandLineArguments).join(QChar(0))));
     cmd2.arg("platform", rp.platform);
+    cmd2.arg("symbolfile", rp.symbolFile);
 
     if (terminal()) {
         const qint64 attachedPID = terminal()->applicationPid();