1 //===-- BreakpointResolverFileLine.cpp --------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "lldb/Breakpoint/BreakpointResolverFileLine.h"
14 // Other libraries and framework includes
16 #include "lldb/Breakpoint/BreakpointLocation.h"
17 #include "lldb/Core/Log.h"
18 #include "lldb/Core/Module.h"
19 #include "lldb/Core/StreamString.h"
20 #include "lldb/Symbol/CompileUnit.h"
21 #include "lldb/Symbol/Function.h"
22 #include "lldb/lldb-private-log.h"
25 using namespace lldb_private;
27 //----------------------------------------------------------------------
28 // BreakpointResolverFileLine:
29 //----------------------------------------------------------------------
30 BreakpointResolverFileLine::BreakpointResolverFileLine
33 const FileSpec &file_spec,
38 BreakpointResolver (bkpt, BreakpointResolver::FileLineResolver),
39 m_file_spec (file_spec),
40 m_line_number (line_no),
41 m_inlines (check_inlines),
42 m_skip_prologue(skip_prologue)
46 BreakpointResolverFileLine::~BreakpointResolverFileLine ()
50 Searcher::CallbackReturn
51 BreakpointResolverFileLine::SearchCallback
54 SymbolContext &context,
59 SymbolContextList sc_list;
61 assert (m_breakpoint != NULL);
63 // There is a tricky bit here. You can have two compilation units that #include the same file, and
64 // in one of them the function at m_line_number is used (and so code and a line entry for it is generated) but in the
65 // other it isn't. If we considered the CU's independently, then in the second inclusion, we'd move the breakpoint
66 // to the next function that actually generated code in the header file. That would end up being confusing.
67 // So instead, we do the CU iterations by hand here, then scan through the complete list of matches, and figure out
68 // the closest line number match, and only set breakpoints on that match.
70 // Note also that if file_spec only had a file name and not a directory, there may be many different file spec's in
71 // the resultant list. The closest line match for one will not be right for some totally different file.
72 // So we go through the match list and pull out the sets that have the same file spec in their line_entry
73 // and treat each set separately.
75 const size_t num_comp_units = context.module_sp->GetNumCompileUnits();
76 for (size_t i = 0; i < num_comp_units; i++)
78 CompUnitSP cu_sp (context.module_sp->GetCompileUnitAtIndex (i));
81 if (filter.CompUnitPasses(*cu_sp))
82 cu_sp->ResolveSymbolContext (m_file_spec, m_line_number, m_inlines, false, eSymbolContextEverything, sc_list);
86 s.Printf ("for %s:%d ",
87 m_file_spec.GetFilename().AsCString("<Unknown>"),
90 SetSCMatchesByLine (filter, sc_list, m_skip_prologue, s.GetData());
92 return Searcher::eCallbackReturnContinue;
96 BreakpointResolverFileLine::GetDepth()
98 return Searcher::eDepthModule;
102 BreakpointResolverFileLine::GetDescription (Stream *s)
104 s->Printf ("file = '%s', line = %u", m_file_spec.GetPath().c_str(), m_line_number);
108 BreakpointResolverFileLine::Dump (Stream *s) const