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;
StreamString error_strm;
SymbolContextList sc_list;
if (target->GetSectionLoadList().IsEmpty())
{
// The target isn't loaded yet, we need to lookup the file address
// in all modules
const ModuleList &module_list = target->GetImages();
const size_t num_modules = module_list.GetSize();
for (size_t i=0; i<num_modules; ++i)
{
ModuleSP module_sp (module_list.GetModuleAtIndex(i));
if (module_sp && module_sp->ResolveFileAddress(m_options.address, so_addr))
{
SymbolContext sc;
sc.Clear(true);
if (module_sp->ResolveSymbolContextForAddress (so_addr, eSymbolContextEverything, sc) & eSymbolContextLineEntry)
sc_list.Append(sc);
}
}
if (sc_list.GetSize() == 0)
{
result.AppendErrorWithFormat("no modules have source information for file address 0x%" PRIx64 ".\n",
m_options.address);
result.SetStatus (eReturnStatusFailed);
return false;
}
}
else
{
// The target has some things loaded, resolve this address to a
// compile unit + file + line and display
if (target->GetSectionLoadList().ResolveLoadAddress (m_options.address, so_addr))
{
ModuleSP module_sp (so_addr.GetModule());
if (module_sp)
{
SymbolContext sc;
sc.Clear(true);
if (module_sp->ResolveSymbolContextForAddress (so_addr, eSymbolContextEverything, sc) & eSymbolContextLineEntry)
{
sc_list.Append(sc);
}
else
{
so_addr.Dump(&error_strm, NULL, Address::DumpStyleModuleWithFileAddress);
result.AppendErrorWithFormat("address resolves to %s, but there is no line table information available for this address.\n",
error_strm.GetData());
result.SetStatus (eReturnStatusFailed);
return false;
}
}
}
if (sc_list.GetSize() == 0)
{
result.AppendErrorWithFormat("no modules contain load address 0x%" PRIx64 ".\n", m_options.address);
result.SetStatus (eReturnStatusFailed);
return false;
}
}
uint32_t num_matches = sc_list.GetSize();
for (uint32_t i=0; i<num_matches; ++i)
{
SymbolContext sc;
sc_list.GetContextAtIndex(i, sc);
if (sc.comp_unit)
{
if (m_options.show_bp_locs)
{
m_breakpoint_locations.Clear();
const bool show_inlines = true;
m_breakpoint_locations.Reset (*sc.comp_unit, 0, show_inlines);
SearchFilter target_search_filter (target->shared_from_this());
target_search_filter.Search (m_breakpoint_locations);
}
bool show_fullpaths = true;
bool show_module = true;
bool show_inlined_frames = true;
const bool show_function_arguments = true;
sc.DumpStopContext(&result.GetOutputStream(),
m_exe_ctx.GetBestExecutionContextScope(),
sc.line_entry.range.GetBaseAddress(),
show_fullpaths,
show_module,
show_inlined_frames,
show_function_arguments);
result.GetOutputStream().EOL();
if (m_options.num_lines == 0)
m_options.num_lines = 10;
size_t lines_to_back_up = m_options.num_lines >= 10 ? 5 : m_options.num_lines/2;
target->GetSourceManager().DisplaySourceLinesWithLineNumbers (sc.comp_unit,
sc.line_entry.line,
lines_to_back_up,
m_options.num_lines - lines_to_back_up,
"->",
&result.GetOutputStream(),
GetBreakpointLocations ());
result.SetStatus (eReturnStatusSuccessFinishResult);
}
}
}
else if (m_options.file_name.empty())
{
// Last valid source manager context, or the current frame if no
// valid last context in source manager.
// One little trick here, if you type the exact same list command twice in a row, it is
// more likely because you typed it once, then typed it again
if (m_options.start_line == 0)
{
if (target->GetSourceManager().DisplayMoreWithLineNumbers (&result.GetOutputStream(),
m_options.num_lines,
m_options.reverse,
GetBreakpointLocations ()))
{
result.SetStatus (eReturnStatusSuccessFinishResult);
}
}
else
{
if (m_options.num_lines == 0)
m_options.num_lines = 10;
if (m_options.show_bp_locs)
{
SourceManager::FileSP last_file_sp (target->GetSourceManager().GetLastFile ());
if (last_file_sp)
{
const bool show_inlines = true;
m_breakpoint_locations.Reset (last_file_sp->GetFileSpec(), 0, show_inlines);
SearchFilter target_search_filter (target->shared_from_this());
target_search_filter.Search (m_breakpoint_locations);
}
}
else
m_breakpoint_locations.Clear();
if (target->GetSourceManager().DisplaySourceLinesWithLineNumbersUsingLastFile(
m_options.start_line, // Line to display
m_options.num_lines, // Lines after line to
UINT32_MAX, // Don't mark "line"
"", // Don't mark "line"
&result.GetOutputStream(),
GetBreakpointLocations ()))
{
result.SetStatus (eReturnStatusSuccessFinishResult);
}
}
}
else
{
const char *filename = m_options.file_name.c_str();
bool check_inlines = false;
SymbolContextList sc_list;
size_t num_matches = 0;
if (m_options.modules.size() > 0)
{
ModuleList matching_modules;
for (size_t i = 0, e = m_options.modules.size(); i < e; ++i)
{
FileSpec module_file_spec(m_options.modules[i].c_str(), false);
if (module_file_spec)
{
ModuleSpec module_spec (module_file_spec);
matching_modules.Clear();
target->GetImages().FindModules (module_spec, matching_modules);
num_matches += matching_modules.ResolveSymbolContextForFilePath (filename,
0,
check_inlines,
eSymbolContextModule | eSymbolContextCompUnit,
sc_list);
}
}
}
else
{
num_matches = target->GetImages().ResolveSymbolContextForFilePath (filename,
0,
check_inlines,
eSymbolContextModule | eSymbolContextCompUnit,
sc_list);
}
if (num_matches == 0)
{
result.AppendErrorWithFormat("Could not find source file \"%s\".\n",
m_options.file_name.c_str());
result.SetStatus (eReturnStatusFailed);
return false;
}
if (num_matches > 1)
{
bool got_multiple = false;
FileSpec *test_cu_spec = NULL;
for (unsigned i = 0; i < num_matches; i++)
{
SymbolContext sc;
sc_list.GetContextAtIndex(i, sc);
if (sc.comp_unit)
{
if (test_cu_spec)
{
if (test_cu_spec != static_cast<FileSpec *> (sc.comp_unit))
got_multiple = true;
break;
}
else
test_cu_spec = sc.comp_unit;
}
}
if (got_multiple)
{
result.AppendErrorWithFormat("Multiple source files found matching: \"%s.\"\n",
m_options.file_name.c_str());
result.SetStatus (eReturnStatusFailed);
return false;
}
}
SymbolContext sc;
if (sc_list.GetContextAtIndex(0, sc))
{
if (sc.comp_unit)
{
if (m_options.show_bp_locs)
{
const bool show_inlines = true;
m_breakpoint_locations.Reset (*sc.comp_unit, 0, show_inlines);
SearchFilter target_search_filter (target->shared_from_this());
target_search_filter.Search (m_breakpoint_locations);
}
else
m_breakpoint_locations.Clear();
if (m_options.num_lines == 0)
m_options.num_lines = 10;
target->GetSourceManager().DisplaySourceLinesWithLineNumbers (sc.comp_unit,
m_options.start_line,
0,
m_options.num_lines,
"",
&result.GetOutputStream(),
GetBreakpointLocations ());
result.SetStatus (eReturnStatusSuccessFinishResult);
}
else
{
result.AppendErrorWithFormat("No comp unit found for: \"%s.\"\n",
m_options.file_name.c_str());
result.SetStatus (eReturnStatusFailed);
return false;
}
}
}
return result.Succeeded();
}
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;
}
