Add History subclasses for Thread, Unwind, RegisterContext.
Still working out some of the details of these classes but
I wanted to get the overall structure checked in.
<rdar://problem/15314068>
llvm-svn: 194245
diff --git a/lldb/source/Plugins/Process/Utility/HistoryUnwind.cpp b/lldb/source/Plugins/Process/Utility/HistoryUnwind.cpp
new file mode 100644
index 0000000..86665fd
--- /dev/null
+++ b/lldb/source/Plugins/Process/Utility/HistoryUnwind.cpp
@@ -0,0 +1,79 @@
+//===-- HistoryUnwind.cpp ---------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-private.h"
+
+#include "Plugins/Process/Utility/RegisterContextHistory.h"
+#include "Plugins/Process/Utility/HistoryUnwind.h"
+
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Thread.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+HistoryUnwind::HistoryUnwind (Thread &thread,
+ std::vector<lldb::addr_t> pcs,
+ uint32_t stop_id,
+ bool stop_id_is_valid) :
+ Unwind (thread),
+ m_pcs (pcs),
+ m_stop_id (stop_id),
+ m_stop_id_is_valid (stop_id_is_valid)
+{
+}
+
+HistoryUnwind::~HistoryUnwind ()
+{
+}
+
+void
+HistoryUnwind::DoClear ()
+{
+ Mutex::Locker locker(m_unwind_mutex);
+ m_pcs.clear();
+ m_stop_id_is_valid = false;
+}
+
+lldb::RegisterContextSP
+HistoryUnwind::DoCreateRegisterContextForFrame (StackFrame *frame)
+{
+ RegisterContextSP rctx;
+ if (frame)
+ {
+ addr_t pc = frame->GetFrameCodeAddress().GetLoadAddress (&frame->GetThread()->GetProcess()->GetTarget());
+ if (pc != LLDB_INVALID_ADDRESS)
+ {
+ rctx.reset (new RegisterContextHistory (*frame->GetThread().get(), frame->GetConcreteFrameIndex(),
+ frame->GetThread()->GetProcess()->GetAddressByteSize(), pc));
+ }
+ }
+ return rctx;
+}
+
+bool
+HistoryUnwind::DoGetFrameInfoAtIndex (uint32_t frame_idx, lldb::addr_t& cfa, lldb::addr_t& pc)
+{
+ Mutex::Locker (m_unwind_mutex);
+ if (frame_idx < m_pcs.size())
+ {
+ cfa = frame_idx;
+ pc = m_pcs[frame_idx];
+ return true;
+ }
+ return false;
+}
+
+uint32_t
+HistoryUnwind::DoGetFrameCount ()
+{
+ return m_pcs.size();
+}