SBValue
SBFrame::LookupVar (const char *var_name)
{
lldb::VariableSP var_sp;
if (IsValid ())
{
lldb_private::VariableList variable_list;
SBSymbolContext sc = GetSymbolContext (eSymbolContextEverything);
SBBlock block = sc.GetBlock();
if (block.IsValid())
block.AppendVariables (true, true, &variable_list);
const uint32_t num_variables = variable_list.GetSize();
bool found = false;
for (uint32_t i = 0; i < num_variables && !found; ++i)
{
var_sp = variable_list.GetVariableAtIndex(i);
if (var_sp
&& (var_sp.get()->GetName() == lldb_private::ConstString(var_name)))
found = true;
}
if (!found)
var_sp.reset();
}
SBValue sb_value (ValueObjectSP (new ValueObjectVariable (var_sp)));
return sb_value;
}
SBValue
SBFrame::LookupVarInScope (const char *var_name, const char *scope)
{
lldb::VariableSP var_sp;
if (IsValid())
{
std::string scope_str = scope;
lldb::ValueType var_scope = eValueTypeInvalid;
// Convert scope_str to be all lowercase;
std::transform (scope_str.begin(), scope_str.end(), scope_str.begin(), ::tolower);
if (scope_str.compare ("global") == 0)
var_scope = eValueTypeVariableGlobal;
else if (scope_str.compare ("local") == 0)
var_scope = eValueTypeVariableLocal;
else if (scope_str.compare ("parameter") == 0)
var_scope = eValueTypeVariableArgument;
if (var_scope != eValueTypeInvalid)
{
lldb_private::VariableList variable_list;
SBSymbolContext sc = GetSymbolContext (eSymbolContextEverything);
SBBlock block = sc.GetBlock();
if (block.IsValid())
block.AppendVariables (true, true, &variable_list);
const uint32_t num_variables = variable_list.GetSize();
bool found = false;
for (uint32_t i = 0; i < num_variables && !found; ++i)
{
var_sp = variable_list.GetVariableAtIndex(i);
if (var_sp
&& (var_sp.get()->GetName() == lldb_private::ConstString(var_name))
&& var_sp.get()->GetScope() == var_scope)
found = true;
}
if (!found)
var_sp.reset();
}
}
SBValue sb_value (ValueObjectSP (new ValueObjectVariable (var_sp)));
return sb_value;
}
int
main (int argc, char const *argv[])
{
// Use a sentry object to properly initialize/terminate LLDB.
LLDBSentry sentry;
SBDebugger debugger (SBDebugger::Create());
// Create a debugger instance so we can create a target
if (!debugger.IsValid())
fprintf (stderr, "error: failed to create a debugger object\n");
bool show_usage = false;
bool verbose = false;
bool canonical = false;
bool external_only = false;
const char *arch = NULL;
const char *platform = NULL;
std::string short_options("h?");
for (const struct option *opt = g_long_options; opt->name; ++opt)
{
if (isprint(opt->val))
{
short_options.append(1, (char)opt->val);
switch (opt->has_arg)
{
case no_argument:
break;
case required_argument:
short_options.append(1, ':');
break;
case optional_argument:
short_options.append(2, ':');
break;
}
}
}
#ifdef __GLIBC__
optind = 0;
#else
optreset = 1;
optind = 1;
#endif
char ch;
while ((ch = getopt_long_only(argc, (char * const *)argv, short_options.c_str(), g_long_options, 0)) != -1)
{
switch (ch)
{
case 0:
break;
case 'a':
if (arch != NULL)
{
fprintf (stderr, "error: the --arch option can only be specified once\n");
exit(1);
}
arch = optarg;
break;
case 'c':
canonical = true;
break;
case 'x':
external_only = true;
break;
case 'p':
platform = optarg;
break;
case 'v':
verbose = true;
break;
case 'h':
case '?':
default:
show_usage = true;
break;
}
}
argc -= optind;
argv += optind;
const bool add_dependent_libs = false;
SBError error;
for (int arg_idx = 0; arg_idx < argc; ++arg_idx)
{
// The first argument is the file path we want to look something up in
const char *exe_file_path = argv[arg_idx];
// Create a target using the executable.
SBTarget target = debugger.CreateTarget (exe_file_path,
arch,
platform,
add_dependent_libs,
error);
if (error.Success())
{
if (target.IsValid())
{
SBFileSpec exe_file_spec (exe_file_path, true);
SBModule module (target.FindModule (exe_file_spec));
SBFileSpecList comp_unit_list;
if (module.IsValid())
{
char command[1024];
lldb::SBCommandReturnObject command_result;
snprintf (command, sizeof(command), "add-dsym --uuid %s", module.GetUUIDString());
debugger.GetCommandInterpreter().HandleCommand (command, command_result);
if (!command_result.Succeeded())
{
fprintf (stderr, "error: couldn't locate debug symbols for '%s'\n", exe_file_path);
exit(1);
}
SBFileSpecList module_list;
module_list.Append(exe_file_spec);
SBBreakpoint bp = target.BreakpointCreateByRegex (".", module_list, comp_unit_list);
const size_t num_locations = bp.GetNumLocations();
for (uint32_t bp_loc_idx=0; bp_loc_idx<num_locations; ++bp_loc_idx)
{
SBBreakpointLocation bp_loc = bp.GetLocationAtIndex(bp_loc_idx);
SBSymbolContext sc (bp_loc.GetAddress().GetSymbolContext(eSymbolContextEverything));
if (sc.IsValid())
{
if (sc.GetBlock().GetContainingInlinedBlock().IsValid())
{
// Skip inlined functions
continue;
}
SBFunction function (sc.GetFunction());
if (function.IsValid())
{
addr_t lo_pc = function.GetStartAddress().GetFileAddress();
if (lo_pc == LLDB_INVALID_ADDRESS)
{
// Skip functions that don't have concrete instances in the binary
continue;
}
addr_t hi_pc = function.GetEndAddress().GetFileAddress();
const char *func_demangled_name = function.GetName();
const char *func_mangled_name = function.GetMangledName();
bool dump = true;
const bool is_objc_method = ((func_demangled_name[0] == '-') || (func_demangled_name[0] == '+')) && (func_demangled_name[1] == '[');
if (external_only)
{
// Dump all objective C methods, or external symbols
dump = is_objc_method;
if (!dump)
dump = sc.GetSymbol().IsExternal();
}
if (dump)
{
if (verbose)
{
printf ("\n name: %s\n", func_demangled_name);
if (func_mangled_name)
printf ("mangled: %s\n", func_mangled_name);
printf (" range: [0x%16.16llx - 0x%16.16llx)\n type: ", lo_pc, hi_pc);
}
else
{
printf ("[0x%16.16llx - 0x%16.16llx) ", lo_pc, hi_pc);
}
SBType function_type = function.GetType();
SBType return_type = function_type.GetFunctionReturnType();
if (canonical)
return_type = return_type.GetCanonicalType();
if (func_mangled_name &&
func_mangled_name[0] == '_' &&
func_mangled_name[1] == 'Z')
{
printf ("%s %s\n", return_type.GetName(), func_demangled_name);
}
else
{
SBTypeList function_args = function_type.GetFunctionArgumentTypes();
const size_t num_function_args = function_args.GetSize();
if (is_objc_method)
{
const char *class_name_start = func_demangled_name + 2;
if (num_function_args == 0)
{
printf("%c(%s)[%s\n", func_demangled_name[0], return_type.GetName(), class_name_start);
}
else
{
const char *class_name_end = strchr(class_name_start,' ');
const int class_name_len = class_name_end - class_name_start;
printf ("%c(%s)[%*.*s", func_demangled_name[0], return_type.GetName(), class_name_len, class_name_len, class_name_start);
const char *selector_pos = class_name_end + 1;
for (uint32_t function_arg_idx = 0; function_arg_idx < num_function_args; ++function_arg_idx)
{
const char *selector_end = strchr(selector_pos, ':') + 1;
const int selector_len = selector_end - selector_pos;
SBType function_arg_type = function_args.GetTypeAtIndex(function_arg_idx);
if (canonical)
function_arg_type = function_arg_type.GetCanonicalType();
printf (" %*.*s", selector_len, selector_len, selector_pos);
if (function_arg_type.IsValid())
{
printf ("(%s)", function_arg_type.GetName());
}
else
{
printf ("(?)");
}
selector_pos = selector_end;
}
printf ("]\n");
}
}
else
{
printf ("%s ", return_type.GetName());
if (strchr (func_demangled_name, '('))
printf ("(*)(");
else
printf ("%s(", func_demangled_name);
for (uint32_t function_arg_idx = 0; function_arg_idx < num_function_args; ++function_arg_idx)
{
SBType function_arg_type = function_args.GetTypeAtIndex(function_arg_idx);
if (canonical)
function_arg_type = function_arg_type.GetCanonicalType();
if (function_arg_type.IsValid())
{
printf ("%s%s", function_arg_idx > 0 ? ", " : "", function_arg_type.GetName());
}
else
{
printf ("%s???", function_arg_idx > 0 ? ", " : "");
}
}
printf (")\n");
}
}
}
}
}
}
}
}
}
else
{
fprintf (stderr, "error: %s\n", error.GetCString());
exit(1);
}
}
return 0;
}