contrib/llvm/tools/lldb/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.h

   1 //===-- ABISysV_x86_64.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 liblldb_ABISysV_x86_64_h_
  11 #define liblldb_ABISysV_x86_64_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 // Other libraries and framework includes
  16 // Project includes
  17 #include "lldb/lldb-private.h"
  18 #include "lldb/Target/ABI.h"
  19
  20 class ABISysV_x86_64 :
  21     public lldb_private::ABI
  22 {
  23 public:
  24
  25     ~ABISysV_x86_64()
  26     {
  27     }
  28
  29     virtual size_t
  30     GetRedZoneSize () const;
  31
  32     virtual bool
  33     PrepareTrivialCall (lldb_private::Thread &thread,
  34                         lldb::addr_t sp,
  35                         lldb::addr_t functionAddress,
  36                         lldb::addr_t returnAddress,
  37                         lldb::addr_t *arg1_ptr = NULL,
  38                         lldb::addr_t *arg2_ptr = NULL,
  39                         lldb::addr_t *arg3_ptr = NULL,
  40                         lldb::addr_t *arg4_ptr = NULL,
  41                         lldb::addr_t *arg5_ptr = NULL,
  42                         lldb::addr_t *arg6_ptr = NULL) const;
  43
  44     virtual bool
  45     GetArgumentValues (lldb_private::Thread &thread,
  46                        lldb_private::ValueList &values) const;
  47
  48     virtual lldb_private::Error
  49     SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
  50
  51 protected:
  52     lldb::ValueObjectSP
  53     GetReturnValueObjectSimple (lldb_private::Thread &thread,
  54                                 lldb_private::ClangASTType &ast_type) const;
  55
  56 public:
  57     virtual lldb::ValueObjectSP
  58     GetReturnValueObjectImpl (lldb_private::Thread &thread,
  59                           lldb_private::ClangASTType &type) const;
  60
  61     virtual bool
  62     CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
  63
  64     virtual bool
  65     CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
  66
  67     virtual bool
  68     RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
  69
  70     virtual bool
  71     StackUsesFrames ()
  72     {
  73         return true;
  74     }
  75
  76     virtual bool
  77     CallFrameAddressIsValid (lldb::addr_t cfa)
  78     {
  79         // Make sure the stack call frame addresses are are 8 byte aligned
  80         if (cfa & (8ull - 1ull))
  81             return false;   // Not 8 byte aligned
  82         if (cfa == 0)
  83             return false;   // Zero is not a valid stack address
  84         return true;
  85     }
  86
  87     virtual bool
  88     CodeAddressIsValid (lldb::addr_t pc)
  89     {
  90         // We have a 64 bit address space, so anything is valid as opcodes
  91         // aren't fixed width...
  92         return true;
  93     }
  94
  95     virtual bool
  96     FunctionCallsChangeCFA ()
  97     {
  98         return true;
  99     }
 100
 101     virtual const lldb_private::RegisterInfo *
 102     GetRegisterInfoArray (uint32_t &count);
 103     //------------------------------------------------------------------
 104     // Static Functions
 105     //------------------------------------------------------------------
 106     static void
 107     Initialize();
 108
 109     static void
 110     Terminate();
 111
 112     static lldb::ABISP
 113     CreateInstance (const lldb_private::ArchSpec &arch);
 114
 115     static lldb_private::ConstString
 116     GetPluginNameStatic();
 117
 118     //------------------------------------------------------------------
 119     // PluginInterface protocol
 120     //------------------------------------------------------------------
 121     virtual lldb_private::ConstString
 122     GetPluginName();
 123
 124     virtual uint32_t
 125     GetPluginVersion();
 126
 127 protected:
 128     void
 129     CreateRegisterMapIfNeeded ();
 130
 131     bool
 132     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 133
 134 private:
 135     ABISysV_x86_64() : lldb_private::ABI() { } // Call CreateInstance instead.
 136 };
 137
 138 #endif  // liblldb_ABI_h_