[Lldb-commits] [lldb] r324234 - Fix a crash in *NetBSD::Factory::Launch

[Kamil Rytarowski via lldb-commits]

Author: kamil
Date: Mon Feb  5 05:16:22 2018
New Revision: 324234

URL: http://llvm.org/viewvc/llvm-project?rev=324234&view=rev
Log:
Fix a crash in *NetBSD::Factory::Launch

Summary:
We cannot call process_up->SetState() inside
the NativeProcessNetBSD::Factory::Launch
function because it triggers a NULL pointer
deference.

The generic code for launching a process in:
GDBRemoteCommunicationServerLLGS::LaunchProcess
sets the m_debugged_process_up pointer after
a successful call to  m_process_factory.Launch().
If we attempt to call process_up->SetState()
inside a platform specific Launch function we
end up dereferencing a NULL pointer in
NativeProcessProtocol::GetCurrentThreadID().

Use the proper call process_up->SetState(,false)
that sets notify_delegates to false.

Sponsored by <The NetBSD Foundation>

Reviewers: labath, joerg

Reviewed By: labath

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D42868

Modified:
    lldb/trunk/source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp

Modified: lldb/trunk/source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp?rev=324234&r1=324233&r2=324234&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp (original)
+++ lldb/trunk/source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp Mon Feb  5 05:16:22 2018
@@ -113,7 +113,7 @@ NativeProcessNetBSD::Factory::Launch(Pro
 
   for (const auto &thread : process_up->m_threads)
     static_cast<NativeThreadNetBSD &>(*thread).SetStoppedBySignal(SIGSTOP);
-  process_up->SetState(StateType::eStateStopped);
+  process_up->SetState(StateType::eStateStopped, false);
 
   return std::move(process_up);
 }