contrib/llvm/tools/lldb/source/DataFormatters/CXXFunctionPointer.cpp

   1 //===-- CXXFormatterFunctions.cpp---------------------------------*- 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 #include "lldb/DataFormatters/CXXFunctionPointer.h"
  11
  12 #include "lldb/Core/Stream.h"
  13 #include "lldb/Core/ValueObject.h"
  14 #include "lldb/Target/SectionLoadList.h"
  15 #include "lldb/Target/Target.h"
  16
  17 #include <string>
  18
  19 using namespace lldb;
  20 using namespace lldb_private;
  21 using namespace lldb_private::formatters;
  22
  23 bool
  24 lldb_private::formatters::CXXFunctionPointerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
  25 {
  26     std::string destination;
  27     StreamString sstr;
  28     AddressType func_ptr_address_type = eAddressTypeInvalid;
  29     addr_t func_ptr_address = valobj.GetPointerValue (&func_ptr_address_type);
  30     if (func_ptr_address != 0 && func_ptr_address != LLDB_INVALID_ADDRESS)
  31     {
  32         switch (func_ptr_address_type)
  33         {
  34             case eAddressTypeInvalid:
  35             case eAddressTypeFile:
  36             case eAddressTypeHost:
  37                 break;
  38
  39             case eAddressTypeLoad:
  40             {
  41                 ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
  42
  43                 Address so_addr;
  44                 Target *target = exe_ctx.GetTargetPtr();
  45                 if (target && target->GetSectionLoadList().IsEmpty() == false)
  46                 {
  47                     if (target->GetSectionLoadList().ResolveLoadAddress(func_ptr_address, so_addr))
  48                     {
  49                         so_addr.Dump (&sstr,
  50                                       exe_ctx.GetBestExecutionContextScope(),
  51                                       Address::DumpStyleResolvedDescription,
  52                                       Address::DumpStyleSectionNameOffset);
  53                     }
  54                 }
  55             }
  56                 break;
  57         }
  58     }
  59     if (sstr.GetSize() > 0)
  60     {
  61         stream.Printf("(%s)", sstr.GetData());
  62         return true;
  63     }
  64     else
  65         return false;
  66 }