llvm-project/lldb/include/lldb/Target/UnwindAssembly.h
Greg Clayton 1ac04c3088 Thread hardening part 3. Now lldb_private::Thread objects have std::weak_ptr
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
2012-02-21 00:09:25 +00:00

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1.6 KiB
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//===-- UnwindAssembly.h --------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef utility_UnwindAssembly_h_
#define utility_UnwindAssembly_h_
#include "lldb/lldb-private.h"
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/PluginInterface.h"
namespace lldb_private {
class UnwindAssembly :
public PluginInterface
{
public:
static UnwindAssembly*
FindPlugin (const ArchSpec &arch);
virtual
~UnwindAssembly();
virtual bool
GetNonCallSiteUnwindPlanFromAssembly (AddressRange& func,
Thread& thread,
UnwindPlan& unwind_plan) = 0;
virtual bool
GetFastUnwindPlan (AddressRange& func,
Thread& thread,
UnwindPlan &unwind_plan) = 0;
// thread may be NULL in which case we only use the Target (e.g. if this is called pre-process-launch).
virtual bool
FirstNonPrologueInsn (AddressRange& func,
const lldb_private::ExecutionContext &exe_ctx,
Address& first_non_prologue_insn) = 0;
protected:
UnwindAssembly (const ArchSpec &arch);
ArchSpec m_arch;
private:
UnwindAssembly(); // Outlaw default constructor
DISALLOW_COPY_AND_ASSIGN (UnwindAssembly);
};
} // namespace lldb_private
#endif //utility_UnwindAssembly_h_