1 //===-- AddressResolverFileLine.cpp ---------------------------------------===//
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   SymbolContextList sc_list;
43   CompileUnit *cu = context.comp_unit;
44 
45   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
46 
47   cu->ResolveSymbolContext(m_file_spec, m_line_number, m_inlines, false,
48                            eSymbolContextEverything, sc_list);
49   uint32_t sc_list_size = sc_list.GetSize();
50   for (uint32_t i = 0; i < sc_list_size; i++) {
51     SymbolContext sc;
52     if (sc_list.GetContextAtIndex(i, sc)) {
53       Address line_start = sc.line_entry.range.GetBaseAddress();
54       addr_t byte_size = sc.line_entry.range.GetByteSize();
55       if (line_start.IsValid()) {
56         AddressRange new_range(line_start, byte_size);
57         m_address_ranges.push_back(new_range);
58         if (log) {
59           StreamString s;
60           // new_bp_loc->GetDescription (&s, lldb::eDescriptionLevelVerbose);
61           // LLDB_LOGF(log, "Added address: %s\n", s.GetData());
62         }
63       } else {
64         LLDB_LOGF(log,
65                   "error: Unable to resolve address at file address 0x%" PRIx64
66                   " for %s:%d\n",
67                   line_start.GetFileAddress(),
68                   m_file_spec.GetFilename().AsCString("<Unknown>"),
69                   m_line_number);
70       }
71     }
72   }
73   return Searcher::eCallbackReturnContinue;
74 }
75 
76 lldb::SearchDepth AddressResolverFileLine::GetDepth() {
77   return lldb::eSearchDepthCompUnit;
78 }
79 
80 void AddressResolverFileLine::GetDescription(Stream *s) {
81   s->Printf("File and line address - file: \"%s\" line: %u",
82             m_file_spec.GetFilename().AsCString("<Unknown>"), m_line_number);
83 }
84