1ac04c3088
objects for the backlink to the lldb_private::Process. The issues we were running into before was someone was holding onto a shared pointer to a lldb_private::Thread for too long, and the lldb_private::Process parent object would get destroyed and the lldb_private::Thread had a "Process &m_process" member which would just treat whatever memory that used to be a Process as a valid Process. This was mostly happening for lldb_private::StackFrame objects that had a member like "Thread &m_thread". So this completes the internal strong/weak changes. Documented the ExecutionContext and ExecutionContextRef classes so that our LLDB developers can understand when and where to use ExecutionContext and ExecutionContextRef objects. llvm-svn: 151009
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
//===-- UnwindMacOSXFrameBackchain.h ----------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef lldb_UnwindMacOSXFrameBackchain_h_
|
|
#define lldb_UnwindMacOSXFrameBackchain_h_
|
|
|
|
// C Includes
|
|
// C++ Includes
|
|
#include <vector>
|
|
|
|
// Other libraries and framework includes
|
|
|
|
// Project includes
|
|
#include "lldb/lldb-private.h"
|
|
#include "lldb/Target/Unwind.h"
|
|
|
|
class UnwindMacOSXFrameBackchain : public lldb_private::Unwind
|
|
{
|
|
public:
|
|
UnwindMacOSXFrameBackchain (lldb_private::Thread &thread);
|
|
|
|
virtual
|
|
~UnwindMacOSXFrameBackchain()
|
|
{
|
|
}
|
|
|
|
protected:
|
|
virtual void
|
|
DoClear()
|
|
{
|
|
m_cursors.clear();
|
|
}
|
|
|
|
virtual uint32_t
|
|
DoGetFrameCount();
|
|
|
|
bool
|
|
DoGetFrameInfoAtIndex (uint32_t frame_idx,
|
|
lldb::addr_t& cfa,
|
|
lldb::addr_t& pc);
|
|
|
|
lldb::RegisterContextSP
|
|
DoCreateRegisterContextForFrame (lldb_private::StackFrame *frame);
|
|
|
|
friend class RegisterContextMacOSXFrameBackchain;
|
|
|
|
struct Cursor
|
|
{
|
|
lldb::addr_t pc; // Program counter
|
|
lldb::addr_t fp; // Frame pointer for us with backchain
|
|
};
|
|
|
|
private:
|
|
std::vector<Cursor> m_cursors;
|
|
|
|
size_t
|
|
GetStackFrameData_i386 (const lldb_private::ExecutionContext &exe_ctx);
|
|
|
|
size_t
|
|
GetStackFrameData_x86_64 (const lldb_private::ExecutionContext &exe_ctx);
|
|
|
|
//------------------------------------------------------------------
|
|
// For UnwindMacOSXFrameBackchain only
|
|
//------------------------------------------------------------------
|
|
DISALLOW_COPY_AND_ASSIGN (UnwindMacOSXFrameBackchain);
|
|
};
|
|
|
|
#endif // lldb_UnwindMacOSXFrameBackchain_h_
|