contrib/llvm/tools/lldb/include/lldb/Target/UnwindAssembly.h

   1 //===-- UnwindAssembly.h --------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef utility_UnwindAssembly_h_
  11 #define utility_UnwindAssembly_h_
  12
  13 #include "lldb/lldb-private.h"
  14 #include "lldb/Core/ArchSpec.h"
  15 #include "lldb/Core/PluginInterface.h"
  16
  17 namespace lldb_private {
  18
  19 class UnwindAssembly :
  20    public std::enable_shared_from_this<UnwindAssembly>,
  21    public PluginInterface
  22 {
  23 public:
  24     static lldb::UnwindAssemblySP
  25     FindPlugin (const ArchSpec &arch);
  26
  27     virtual
  28     ~UnwindAssembly();
  29
  30     virtual bool
  31     GetNonCallSiteUnwindPlanFromAssembly (AddressRange& func,
  32                                           Thread& thread,
  33                                           UnwindPlan& unwind_plan) = 0;
  34
  35     virtual bool
  36     GetFastUnwindPlan (AddressRange& func,
  37                        Thread& thread,
  38                        UnwindPlan &unwind_plan) = 0;
  39
  40     // thread may be NULL in which case we only use the Target (e.g. if this is called pre-process-launch).
  41     virtual bool
  42     FirstNonPrologueInsn (AddressRange& func,
  43                           const lldb_private::ExecutionContext &exe_ctx,
  44                           Address& first_non_prologue_insn) = 0;
  45
  46 protected:
  47     UnwindAssembly (const ArchSpec &arch);
  48     ArchSpec m_arch;
  49
  50 private:
  51     UnwindAssembly(); // Outlaw default constructor
  52     DISALLOW_COPY_AND_ASSIGN (UnwindAssembly);
  53 };
  54
  55 } // namespace lldb_private
  56
  57 #endif //utility_UnwindAssembly_h_
  58
  59