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

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