contrib/llvm/tools/lldb/source/Core/AddressResolverFileLine.cpp

   1 //===-- AddressResolverFileLine.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/Core/AddressResolverFileLine.h"
  11
  12 #include "lldb/Core/Address.h"
  13 #include "lldb/Core/AddressRange.h"
  14 #include "lldb/Symbol/CompileUnit.h"
  15 #include "lldb/Symbol/LineEntry.h"
  16 #include "lldb/Symbol/SymbolContext.h"
  17 #include "lldb/Utility/ConstString.h"
  18 #include "lldb/Utility/Log.h"
  19 #include "lldb/Utility/Logging.h"
  20 #include "lldb/Utility/Stream.h"
  21 #include "lldb/Utility/StreamString.h"
  22 #include "lldb/lldb-enumerations.h"
  23 #include "lldb/lldb-types.h"
  24
  25 #include <inttypes.h>
  26 #include <vector>
  27
  28 using namespace lldb;
  29 using namespace lldb_private;
  30
  31 //----------------------------------------------------------------------
  32 // AddressResolverFileLine:
  33 //----------------------------------------------------------------------
  34 AddressResolverFileLine::AddressResolverFileLine(const FileSpec &file_spec,
  35                                                  uint32_t line_no,
  36                                                  bool check_inlines)
  37     : AddressResolver(), m_file_spec(file_spec), m_line_number(line_no),
  38       m_inlines(check_inlines) {}
  39
  40 AddressResolverFileLine::~AddressResolverFileLine() {}
  41
  42 Searcher::CallbackReturn
  43 AddressResolverFileLine::SearchCallback(SearchFilter &filter,
  44                                         SymbolContext &context, Address *addr,
  45                                         bool containing) {
  46   SymbolContextList sc_list;
  47   uint32_t sc_list_size;
  48   CompileUnit *cu = context.comp_unit;
  49
  50   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
  51
  52   sc_list_size =
  53       cu->ResolveSymbolContext(m_file_spec, m_line_number, m_inlines, false,
  54                                eSymbolContextEverything, sc_list);
  55   for (uint32_t i = 0; i < sc_list_size; i++) {
  56     SymbolContext sc;
  57     if (sc_list.GetContextAtIndex(i, sc)) {
  58       Address line_start = sc.line_entry.range.GetBaseAddress();
  59       addr_t byte_size = sc.line_entry.range.GetByteSize();
  60       if (line_start.IsValid()) {
  61         AddressRange new_range(line_start, byte_size);
  62         m_address_ranges.push_back(new_range);
  63         if (log) {
  64           StreamString s;
  65           // new_bp_loc->GetDescription (&s, lldb::eDescriptionLevelVerbose);
  66           // log->Printf ("Added address: %s\n", s.GetData());
  67         }
  68       } else {
  69         if (log)
  70           log->Printf(
  71               "error: Unable to resolve address at file address 0x%" PRIx64
  72               " for %s:%d\n",
  73               line_start.GetFileAddress(),
  74               m_file_spec.GetFilename().AsCString("<Unknown>"), m_line_number);
  75       }
  76     }
  77   }
  78   return Searcher::eCallbackReturnContinue;
  79 }
  80
  81 lldb::SearchDepth AddressResolverFileLine::GetDepth() {
  82   return lldb::eSearchDepthCompUnit;
  83 }
  84
  85 void AddressResolverFileLine::GetDescription(Stream *s) {
  86   s->Printf("File and line address - file: \"%s\" line: %u",
  87             m_file_spec.GetFilename().AsCString("<Unknown>"), m_line_number);
  88 }