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                         llvm::ArrayRef<lldb::addr_t> args) const;
  38
  39     virtual bool
  40     GetArgumentValues (lldb_private::Thread &thread,
  41                        lldb_private::ValueList &values) const;
  42
  43     virtual lldb_private::Error
  44     SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
  45
  46 protected:
  47     lldb::ValueObjectSP
  48     GetReturnValueObjectSimple (lldb_private::Thread &thread,
  49                                 lldb_private::ClangASTType &ast_type) const;
  50
  51 public:
  52     virtual lldb::ValueObjectSP
  53     GetReturnValueObjectImpl (lldb_private::Thread &thread,
  54                           lldb_private::ClangASTType &type) const;
  55
  56     virtual bool
  57     CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
  58
  59     virtual bool
  60     CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
  61
  62     virtual bool
  63     RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
  64
  65     virtual bool
  66     StackUsesFrames ()
  67     {
  68         return true;
  69     }
  70
  71     virtual bool
  72     CallFrameAddressIsValid (lldb::addr_t cfa)
  73     {
  74         // Make sure the stack call frame addresses are 16 byte aligned
  75         if (cfa & (16ull - 1ull))
  76             return false;   // Not 16 byte aligned
  77         if (cfa == 0)
  78             return false;   // Zero is not a valid stack address
  79         return true;
  80     }
  81
  82     virtual bool
  83     CodeAddressIsValid (lldb::addr_t pc)
  84     {
  85         // We have a 64 bit address space, so anything is valid as opcodes
  86         // aren't fixed width...
  87         return true;
  88     }
  89
  90     virtual bool
  91     FunctionCallsChangeCFA ()
  92     {
  93         return true;
  94     }
  95
  96     virtual const lldb_private::RegisterInfo *
  97     GetRegisterInfoArray (uint32_t &count);
  98     //------------------------------------------------------------------
  99     // Static Functions
 100     //------------------------------------------------------------------
 101     static void
 102     Initialize();
 103
 104     static void
 105     Terminate();
 106
 107     static lldb::ABISP
 108     CreateInstance (const lldb_private::ArchSpec &arch);
 109
 110     static lldb_private::ConstString
 111     GetPluginNameStatic();
 112
 113     //------------------------------------------------------------------
 114     // PluginInterface protocol
 115     //------------------------------------------------------------------
 116     virtual lldb_private::ConstString
 117     GetPluginName();
 118
 119     virtual uint32_t
 120     GetPluginVersion();
 121
 122 protected:
 123     void
 124     CreateRegisterMapIfNeeded ();
 125
 126     bool
 127     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 128
 129 private:
 130     ABISysV_x86_64() : lldb_private::ABI() { } // Call CreateInstance instead.
 131 };
 132
 133 #endif  // liblldb_ABI_h_