krytarowski created this revision.
krytarowski added reviewers: labath, joerg.
Herald added a subscriber: llvm-commits.
krytarowski edited the summary of this revision.
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().
Follow the Linux case and move SetState() to:
NativeProcessNetBSD::NativeProcessNetBSD.
Sponsored by <The NetBSD Foundation>
Repository:
rL LLVM
https://reviews.llvm.org/D42868
Files:
source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
Index: source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
===================================================================
--- source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
+++ source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
@@ -113,7 +113,6 @@
for (const auto &thread : process_up->m_threads)
static_cast<NativeThreadNetBSD &>(*thread).SetStoppedBySignal(SIGSTOP);
- process_up->SetState(StateType::eStateStopped);
return std::move(process_up);
}
@@ -160,6 +159,8 @@
m_sigchld_handle = mainloop.RegisterSignal(
SIGCHLD, [this](MainLoopBase &) { SigchldHandler(); }, status);
assert(m_sigchld_handle && status.Success());
+
+ SetState(StateType::eStateStopped, false);
}
// Handles all waitpid events from the inferior process.
Index: source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
===================================================================
--- source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
+++ source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp
@@ -113,7 +113,6 @@
for (const auto &thread : process_up->m_threads)
static_cast<NativeThreadNetBSD &>(*thread).SetStoppedBySignal(SIGSTOP);
- process_up->SetState(StateType::eStateStopped);
return std::move(process_up);
}
@@ -160,6 +159,8 @@
m_sigchld_handle = mainloop.RegisterSignal(
SIGCHLD, [this](MainLoopBase &) { SigchldHandler(); }, status);
assert(m_sigchld_handle && status.Success());
+
+ SetState(StateType::eStateStopped, false);
}
// Handles all waitpid events from the inferior process.
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