contrib/llvm-project/lldb/source/Core/AddressResolverFileLine.cpp

   1 //===-- AddressResolverFileLine.cpp -----------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "lldb/Core/AddressResolverFileLine.h"
  10
  11 #include "lldb/Core/Address.h"
  12 #include "lldb/Core/AddressRange.h"
  13 #include "lldb/Symbol/CompileUnit.h"
  14 #include "lldb/Symbol/LineEntry.h"
  15 #include "lldb/Symbol/SymbolContext.h"
  16 #include "lldb/Utility/ConstString.h"
  17 #include "lldb/Utility/Log.h"
  18 #include "lldb/Utility/Logging.h"
  19 #include "lldb/Utility/Stream.h"
  20 #include "lldb/Utility/StreamString.h"
  21 #include "lldb/lldb-enumerations.h"
  22 #include "lldb/lldb-types.h"
  23
  24 #include <inttypes.h>
  25 #include <vector>
  26
  27 using namespace lldb;
  28 using namespace lldb_private;
  29
  30 // AddressResolverFileLine:
  31 AddressResolverFileLine::AddressResolverFileLine(const FileSpec &file_spec,
  32                                                  uint32_t line_no,
  33                                                  bool check_inlines)
  34     : AddressResolver(), m_file_spec(file_spec), m_line_number(line_no),
  35       m_inlines(check_inlines) {}
  36
  37 AddressResolverFileLine::~AddressResolverFileLine() {}
  38
  39 Searcher::CallbackReturn
  40 AddressResolverFileLine::SearchCallback(SearchFilter &filter,
  41                                         SymbolContext &context, Address *addr,
  42                                         bool containing) {
  43   SymbolContextList sc_list;
  44   uint32_t sc_list_size;
  45   CompileUnit *cu = context.comp_unit;
  46
  47   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
  48
  49   sc_list_size =
  50       cu->ResolveSymbolContext(m_file_spec, m_line_number, m_inlines, false,
  51                                eSymbolContextEverything, sc_list);
  52   for (uint32_t i = 0; i < sc_list_size; i++) {
  53     SymbolContext sc;
  54     if (sc_list.GetContextAtIndex(i, sc)) {
  55       Address line_start = sc.line_entry.range.GetBaseAddress();
  56       addr_t byte_size = sc.line_entry.range.GetByteSize();
  57       if (line_start.IsValid()) {
  58         AddressRange new_range(line_start, byte_size);
  59         m_address_ranges.push_back(new_range);
  60         if (log) {
  61           StreamString s;
  62           // new_bp_loc->GetDescription (&s, lldb::eDescriptionLevelVerbose);
  63           // log->Printf ("Added address: %s\n", s.GetData());
  64         }
  65       } else {
  66         if (log)
  67           log->Printf(
  68               "error: Unable to resolve address at file address 0x%" PRIx64
  69               " for %s:%d\n",
  70               line_start.GetFileAddress(),
  71               m_file_spec.GetFilename().AsCString("<Unknown>"), m_line_number);
  72       }
  73     }
  74   }
  75   return Searcher::eCallbackReturnContinue;
  76 }
  77
  78 lldb::SearchDepth AddressResolverFileLine::GetDepth() {
  79   return lldb::eSearchDepthCompUnit;
  80 }
  81
  82 void AddressResolverFileLine::GetDescription(Stream *s) {
  83   s->Printf("File and line address - file: \"%s\" line: %u",
  84             m_file_spec.GetFilename().AsCString("<Unknown>"), m_line_number);
  85 }