本文整理汇总了C++中SymbolContext::GetFunctionStartLineEntry方法的典型用法代码示例。如果您正苦于以下问题：C++ SymbolContext::GetFunctionStartLineEntry方法的具体用法？C++ SymbolContext::GetFunctionStartLineEntry怎么用？C++ SymbolContext::GetFunctionStartLineEntry使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SymbolContext的用法示例。
在下文中一共展示了SymbolContext::GetFunctionStartLineEntry方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: name
bool
DoExecute (Args& command, CommandReturnObject &result)
{
const size_t argc = command.GetArgumentCount();
if (argc != 0)
{
result.AppendErrorWithFormat("'%s' takes no arguments, only flags.\n", GetCommandName());
result.SetStatus (eReturnStatusFailed);
return false;
}
Target *target = m_exe_ctx.GetTargetPtr();
if (!m_options.symbol_name.empty())
{
SymbolContextList sc_list;
ConstString name(m_options.symbol_name.c_str());
// Displaying the source for a symbol. Search for function named name.
size_t num_matches = FindMatchingFunctions (target, name, sc_list);
if (!num_matches)
{
// If we didn't find any functions with that name, try searching for symbols
// that line up exactly with function addresses.
SymbolContextList sc_list_symbols;
size_t num_symbol_matches = FindMatchingFunctionSymbols (target, name, sc_list_symbols);
for (size_t i = 0; i < num_symbol_matches; i++)
{
SymbolContext sc;
sc_list_symbols.GetContextAtIndex (i, sc);
if (sc.symbol)
{
const Address &base_address = sc.symbol->GetAddress();
Function *function = base_address.CalculateSymbolContextFunction();
if (function)
{
sc_list.Append (SymbolContext(function));
num_matches++;
break;
}
}
}
}
if (num_matches == 0)
{
result.AppendErrorWithFormat("Could not find function named: \"%s\".\n", m_options.symbol_name.c_str());
result.SetStatus (eReturnStatusFailed);
return false;
}
if (num_matches > 1)
{
std::set<SourceInfo> source_match_set;
bool displayed_something = false;
for (size_t i = 0; i < num_matches; i++)
{
SymbolContext sc;
sc_list.GetContextAtIndex (i, sc);
SourceInfo source_info (sc.GetFunctionName(),
sc.GetFunctionStartLineEntry());
if (source_info.IsValid())
{
if (source_match_set.find(source_info) == source_match_set.end())
{
source_match_set.insert(source_info);
if (DisplayFunctionSource (sc, source_info, result))
displayed_something = true;
}
}
}
if (displayed_something)
result.SetStatus (eReturnStatusSuccessFinishResult);
else
result.SetStatus (eReturnStatusFailed);
}
else
{
SymbolContext sc;
sc_list.GetContextAtIndex (0, sc);
SourceInfo source_info;
if (DisplayFunctionSource (sc, source_info, result))
{
result.SetStatus (eReturnStatusSuccessFinishResult);
}
else
{
result.SetStatus (eReturnStatusFailed);
}
}
return result.Succeeded();
}
else if (m_options.address != LLDB_INVALID_ADDRESS)
{
Address so_addr;
//.........这里部分代码省略.........
示例2: target_search_filter
size_t
DisplayFunctionSource (const SymbolContext &sc,
SourceInfo &source_info,
CommandReturnObject &result)
{
if (!source_info.IsValid())
{
source_info.function = sc.GetFunctionName();
source_info.line_entry = sc.GetFunctionStartLineEntry();
}
if (sc.function)
{
Target *target = m_exe_ctx.GetTargetPtr();
FileSpec start_file;
uint32_t start_line;
uint32_t end_line;
FileSpec end_file;
if (sc.block == NULL)
{
// Not an inlined function
sc.function->GetStartLineSourceInfo (start_file, start_line);
if (start_line == 0)
{
result.AppendErrorWithFormat("Could not find line information for start of function: \"%s\".\n", source_info.function.GetCString());
result.SetStatus (eReturnStatusFailed);
return 0;
}
sc.function->GetEndLineSourceInfo (end_file, end_line);
}
else
{
// We have an inlined function
start_file = source_info.line_entry.file;
start_line = source_info.line_entry.line;
end_line = start_line + m_options.num_lines;
}
// This is a little hacky, but the first line table entry for a function points to the "{" that
// starts the function block. It would be nice to actually get the function
// declaration in there too. So back up a bit, but not further than what you're going to display.
uint32_t extra_lines;
if (m_options.num_lines >= 10)
extra_lines = 5;
else
extra_lines = m_options.num_lines/2;
uint32_t line_no;
if (start_line <= extra_lines)
line_no = 1;
else
line_no = start_line - extra_lines;
// For fun, if the function is shorter than the number of lines we're supposed to display,
// only display the function...
if (end_line != 0)
{
if (m_options.num_lines > end_line - line_no)
m_options.num_lines = end_line - line_no + extra_lines;
}
m_breakpoint_locations.Clear();
if (m_options.show_bp_locs)
{
const bool show_inlines = true;
m_breakpoint_locations.Reset (start_file, 0, show_inlines);
SearchFilter target_search_filter (m_exe_ctx.GetTargetSP());
target_search_filter.Search (m_breakpoint_locations);
}
result.AppendMessageWithFormat("File: %s\n", start_file.GetPath().c_str());
return target->GetSourceManager().DisplaySourceLinesWithLineNumbers (start_file,
line_no,
0,
m_options.num_lines,
"",
&result.GetOutputStream(),
GetBreakpointLocations ());
}
else
{
result.AppendErrorWithFormat("Could not find function info for: \"%s\".\n", m_options.symbol_name.c_str());
}
return 0;
}