size_t
ModuleList::FindFunctionSymbols (const ConstString &name,
                                 uint32_t name_type_mask,
                                 SymbolContextList& sc_list)
{
    const size_t old_size = sc_list.GetSize();

    if (name_type_mask & eFunctionNameTypeAuto)
    {
        ConstString lookup_name;
        uint32_t lookup_name_type_mask = 0;
        bool match_name_after_lookup = false;
        Module::PrepareForFunctionNameLookup (name, name_type_mask,
                                              eLanguageTypeUnknown, // TODO: add support
                                              lookup_name,
                                              lookup_name_type_mask,
                                              match_name_after_lookup);
    
        Mutex::Locker locker(m_modules_mutex);
        collection::const_iterator pos, end = m_modules.end();
        for (pos = m_modules.begin(); pos != end; ++pos)
        {
            (*pos)->FindFunctionSymbols (lookup_name,
                                   lookup_name_type_mask,
                                   sc_list);
        }
        
        if (match_name_after_lookup)
        {
            SymbolContext sc;
            size_t i = old_size;
            while (i < sc_list.GetSize())
            {
                if (sc_list.GetContextAtIndex(i, sc))
                {
                    const char *func_name = sc.GetFunctionName().GetCString();
                    if (func_name != nullptr && strstr(func_name, name.GetCString()) == nullptr)
                    {
                        // Remove the current context
                        sc_list.RemoveContextAtIndex(i);
                        // Don't increment i and continue in the loop
                        continue;
                    }
                }
                ++i;
            }
        }
    }
    else
    {
        Mutex::Locker locker(m_modules_mutex);
        collection::const_iterator pos, end = m_modules.end();
        for (pos = m_modules.begin(); pos != end; ++pos)
        {
            (*pos)->FindFunctionSymbols (name, name_type_mask, sc_list);
        }
    }

    return sc_list.GetSize() - old_size;
}
void
BreakpointResolverName::LookupInfo::Prune (SymbolContextList &sc_list, size_t start_idx) const
{
    if (match_name_after_lookup && name)
    {
        SymbolContext sc;
        size_t i = start_idx;
        while (i < sc_list.GetSize())
        {
            if (!sc_list.GetContextAtIndex(i, sc))
                break;
            ConstString full_name (sc.GetFunctionName());
            if (full_name && ::strstr(full_name.GetCString(), name.GetCString()) == NULL)
            {
                sc_list.RemoveContextAtIndex(i);
            }
            else
            {
                ++i;
            }
        }
    }
}
Exemple #3
0
void
BreakpointResolver::SetSCMatchesByLine (SearchFilter &filter, SymbolContextList &sc_list, bool skip_prologue, const char *log_ident)
{
    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));

    while (sc_list.GetSize() > 0)
    {
        SymbolContextList tmp_sc_list;
        unsigned current_idx = 0;
        SymbolContext sc;
        bool first_entry = true;
        
        FileSpec match_file_spec;
        FileSpec match_original_file_spec;
        uint32_t closest_line_number = UINT32_MAX;

        // Pull out the first entry, and all the others that match its file spec, and stuff them in the tmp list.
        while (current_idx < sc_list.GetSize())
        {
            bool matches;
            
            sc_list.GetContextAtIndex (current_idx, sc);
            if (first_entry)
            {
                match_file_spec = sc.line_entry.file;
                match_original_file_spec = sc.line_entry.original_file;
                matches = true;
                first_entry = false;
            }
            else
                matches = ((sc.line_entry.file == match_file_spec) ||
                           (sc.line_entry.original_file == match_original_file_spec));
            
            if (matches)
            {
                tmp_sc_list.Append (sc);
                sc_list.RemoveContextAtIndex(current_idx);
                
                // ResolveSymbolContext will always return a number that is >= the line number you pass in.
                // So the smaller line number is always better.
                if (sc.line_entry.line < closest_line_number)
                    closest_line_number = sc.line_entry.line;
            }
            else
                current_idx++;
        }
            
        // Okay, we've found the closest line number match, now throw away all the others:
        
        current_idx = 0;
        while (current_idx < tmp_sc_list.GetSize())
        {
            if (tmp_sc_list.GetContextAtIndex(current_idx, sc))
            {
                if (sc.line_entry.line != closest_line_number)
                    tmp_sc_list.RemoveContextAtIndex(current_idx);
                else
                    current_idx++;
            }
        }
        
        // Next go through and see if there are line table entries that are contiguous, and if so keep only the
        // first of the contiguous range:
        
        current_idx = 0;
        std::map<Block *, lldb::addr_t> blocks_with_breakpoints;
        
        while (current_idx < tmp_sc_list.GetSize())
        {
            if (tmp_sc_list.GetContextAtIndex(current_idx, sc))
            {
                if (blocks_with_breakpoints.find (sc.block) != blocks_with_breakpoints.end())
                    tmp_sc_list.RemoveContextAtIndex(current_idx);
                else
                {
                    blocks_with_breakpoints.insert (std::pair<Block *, lldb::addr_t>(sc.block, sc.line_entry.range.GetBaseAddress().GetFileAddress()));
                    current_idx++;
                }
            }
        }
        
        // and make breakpoints out of the closest line number match.
        
        uint32_t tmp_sc_list_size = tmp_sc_list.GetSize();
        
        for (uint32_t i = 0; i < tmp_sc_list_size; i++)
        {
            if (tmp_sc_list.GetContextAtIndex(i, sc))
            {
                Address line_start = sc.line_entry.range.GetBaseAddress();
                if (line_start.IsValid())
                {
                    if (filter.AddressPasses(line_start))
                    {
                        // If the line number is before the prologue end, move it there...
                        bool skipped_prologue = false;
                        if (skip_prologue)
                        {
                            if (sc.function)
                            {
                                Address prologue_addr(sc.function->GetAddressRange().GetBaseAddress());
                                if (prologue_addr.IsValid() && (line_start == prologue_addr))
                                {
                                    const uint32_t prologue_byte_size = sc.function->GetPrologueByteSize();
                                    if (prologue_byte_size)
                                    {
                                        prologue_addr.Slide(prologue_byte_size);
                 
                                        if (filter.AddressPasses(prologue_addr))
                                        {
                                            skipped_prologue = true;
                                            line_start = prologue_addr;
                                        }
                                    }
                                }
                            }
                        }
                    
                        BreakpointLocationSP bp_loc_sp (AddLocation(line_start));
                        if (log && bp_loc_sp && !m_breakpoint->IsInternal())
                        {
                            StreamString s;
                            bp_loc_sp->GetDescription (&s, lldb::eDescriptionLevelVerbose);
                            log->Printf ("Added location (skipped prologue: %s): %s \n", skipped_prologue ? "yes" : "no", s.GetData());
                        }
                    }
                    else if (log)
                    {
                        log->Printf ("Breakpoint %s at file address 0x%" PRIx64 " didn't pass the filter.\n",
                                     log_ident ? log_ident : "",
                                     line_start.GetFileAddress());
                    }
                }
                else
                {
                    if (log)
                        log->Printf ("error: Unable to set breakpoint %s at file address 0x%" PRIx64 "\n",
                                     log_ident ? log_ident : "",
                                     line_start.GetFileAddress());
                }
            }
        }
    }
}
Exemple #4
0
size_t
ModuleList::FindFunctions (const ConstString &name, 
                           uint32_t name_type_mask, 
                           bool include_symbols,
                           bool include_inlines,
                           bool append, 
                           SymbolContextList &sc_list) const
{
    if (!append)
        sc_list.Clear();
    
    const size_t old_size = sc_list.GetSize();
    
    if (name_type_mask & eFunctionNameTypeAuto)
    {
        ConstString lookup_name;
        uint32_t lookup_name_type_mask = 0;
        bool match_name_after_lookup = false;
        Module::PrepareForFunctionNameLookup (name, name_type_mask,
                                              lookup_name,
                                              lookup_name_type_mask,
                                              match_name_after_lookup);
    
        Mutex::Locker locker(m_modules_mutex);
        collection::const_iterator pos, end = m_modules.end();
        for (pos = m_modules.begin(); pos != end; ++pos)
        {
            (*pos)->FindFunctions (lookup_name,
                                   NULL,
                                   lookup_name_type_mask,
                                   include_symbols,
                                   include_inlines,
                                   true,
                                   sc_list);
        }
        
        if (match_name_after_lookup)
        {
            SymbolContext sc;
            size_t i = old_size;
            while (i<sc_list.GetSize())
            {
                if (sc_list.GetContextAtIndex(i, sc))
                {
                    const char *func_name = sc.GetFunctionName().GetCString();
                    if (func_name && strstr (func_name, name.GetCString()) == NULL)
                    {
                        // Remove the current context
                        sc_list.RemoveContextAtIndex(i);
                        // Don't increment i and continue in the loop
                        continue;
                    }
                }
                ++i;
            }
        }

    }
    else
    {
        Mutex::Locker locker(m_modules_mutex);
        collection::const_iterator pos, end = m_modules.end();
        for (pos = m_modules.begin(); pos != end; ++pos)
        {
            (*pos)->FindFunctions (name, NULL, name_type_mask, include_symbols, include_inlines, true, sc_list);
        }
    }
    return sc_list.GetSize() - old_size;
}