bool DoExecute(Args &args, CommandReturnObject &result) override {
if (args.empty()) {
Log::ListAllLogChannels(&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishResult);
} else {
for (auto &entry : args.entries()) {
Log::Callbacks log_callbacks;
if (Log::GetLogChannelCallbacks(ConstString(entry.ref),
log_callbacks)) {
log_callbacks.list_categories(&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishResult);
} else if (entry.ref == "all") {
Log::ListAllLogChannels(&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishResult);
} else {
LogChannelSP log_channel_sp(LogChannel::FindPlugin(entry.c_str()));
if (log_channel_sp) {
log_channel_sp->ListCategories(&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishNoResult);
} else
result.AppendErrorWithFormat("Invalid log channel '%s'.\n",
entry.c_str());
}
}
}
return result.Succeeded();
}
static void FixupEnvironment(Args &env) {
#ifdef __ANDROID__
// If there is no PATH variable specified inside the environment then set the
// path to /system/bin. It is required because the default path used by
// execve() is wrong on android.
static const char *path = "PATH=";
for (auto &entry : env.entries()) {
if (entry.ref.startswith(path))
return;
}
env.AppendArgument(llvm::StringRef("PATH=/system/bin"));
#endif
}
bool DoExecute(Args &command, CommandReturnObject &result) override {
bool demangled_any = false;
bool error_any = false;
for (auto &entry : command.entries()) {
if (entry.ref.empty())
continue;
// the actual Mangled class should be strict about this, but on the
// command line if you're copying mangled names out of 'nm' on Darwin,
// they will come out with an extra underscore - be willing to strip
// this on behalf of the user. This is the moral equivalent of the -_/-n
// options to c++filt
auto name = entry.ref;
if (name.startswith("__Z"))
name = name.drop_front();
Mangled mangled(name, true);
if (mangled.GuessLanguage() == lldb::eLanguageTypeC_plus_plus) {
ConstString demangled(
mangled.GetDisplayDemangledName(lldb::eLanguageTypeC_plus_plus));
demangled_any = true;
result.AppendMessageWithFormat("%s ---> %s\n", entry.ref.str().c_str(),
demangled.GetCString());
} else {
error_any = true;
result.AppendErrorWithFormat("%s is not a valid C++ mangled name\n",
entry.ref.str().c_str());
}
}
result.SetStatus(
error_any ? lldb::eReturnStatusFailed
: (demangled_any ? lldb::eReturnStatusSuccessFinishResult
: lldb::eReturnStatusSuccessFinishNoResult));
return result.Succeeded();
}
bool CommandObjectArgs::DoExecute(Args &args, CommandReturnObject &result) {
ConstString target_triple;
Process *process = m_exe_ctx.GetProcessPtr();
if (!process) {
result.AppendError("Args found no process.");
result.SetStatus(eReturnStatusFailed);
return false;
}
const ABI *abi = process->GetABI().get();
if (!abi) {
result.AppendError("The current process has no ABI.");
result.SetStatus(eReturnStatusFailed);
return false;
}
if (args.empty()) {
result.AppendError("args requires at least one argument");
result.SetStatus(eReturnStatusFailed);
return false;
}
Thread *thread = m_exe_ctx.GetThreadPtr();
if (!thread) {
result.AppendError("args found no thread.");
result.SetStatus(eReturnStatusFailed);
return false;
}
lldb::StackFrameSP thread_cur_frame = thread->GetSelectedFrame();
if (!thread_cur_frame) {
result.AppendError("The current thread has no current frame.");
result.SetStatus(eReturnStatusFailed);
return false;
}
ModuleSP thread_module_sp(
thread_cur_frame->GetFrameCodeAddress().GetModule());
if (!thread_module_sp) {
result.AppendError("The PC has no associated module.");
result.SetStatus(eReturnStatusFailed);
return false;
}
TypeSystem *type_system =
thread_module_sp->GetTypeSystemForLanguage(eLanguageTypeC);
if (type_system == nullptr) {
result.AppendError("Unable to create C type system.");
result.SetStatus(eReturnStatusFailed);
return false;
}
ValueList value_list;
for (auto &arg_entry : args.entries()) {
llvm::StringRef arg_type = arg_entry.ref;
Value value;
value.SetValueType(Value::eValueTypeScalar);
CompilerType compiler_type;
std::size_t int_pos = arg_type.find("int");
if (int_pos != llvm::StringRef::npos) {
Encoding encoding = eEncodingSint;
int width = 0;
if (int_pos > 1) {
result.AppendErrorWithFormat("Invalid format: %s.\n",
arg_entry.c_str());
result.SetStatus(eReturnStatusFailed);
return false;
}
if (int_pos == 1 && arg_type[0] != 'u') {
result.AppendErrorWithFormat("Invalid format: %s.\n",
arg_entry.c_str());
result.SetStatus(eReturnStatusFailed);
return false;
}
if (arg_type[0] == 'u') {
encoding = eEncodingUint;
}
llvm::StringRef width_spec = arg_type.drop_front(int_pos + 3);
auto exp_result = llvm::StringSwitch<llvm::Optional<int>>(width_spec)
.Case("8_t", 8)
.Case("16_t", 16)
.Case("32_t", 32)
.Case("64_t", 64)
.Default(llvm::None);
if (!exp_result.hasValue()) {
result.AppendErrorWithFormat("Invalid format: %s.\n",
arg_entry.c_str());
result.SetStatus(eReturnStatusFailed);
return false;
}
width = *exp_result;
compiler_type =
type_system->GetBuiltinTypeForEncodingAndBitSize(encoding, width);
if (!compiler_type.IsValid()) {
result.AppendErrorWithFormat(
"Couldn't get Clang type for format %s (%s integer, width %d).\n",
arg_entry.c_str(),
(encoding == eEncodingSint ? "signed" : "unsigned"), width);
result.SetStatus(eReturnStatusFailed);
return false;
}
} else if (arg_type == "void*") {
compiler_type =
type_system->GetBasicTypeFromAST(eBasicTypeVoid).GetPointerType();
} else if (arg_type == "char*") {
compiler_type =
type_system->GetBasicTypeFromAST(eBasicTypeChar).GetPointerType();
} else {
result.AppendErrorWithFormat("Invalid format: %s.\n", arg_entry.c_str());
result.SetStatus(eReturnStatusFailed);
return false;
}
value.SetCompilerType(compiler_type);
value_list.PushValue(value);
}
if (!abi->GetArgumentValues(*thread, value_list)) {
result.AppendError("Couldn't get argument values");
result.SetStatus(eReturnStatusFailed);
return false;
}
result.GetOutputStream().Printf("Arguments : \n");
for (auto entry : llvm::enumerate(args.entries())) {
result.GetOutputStream().Printf("%" PRIu64 " (%s): ", (uint64_t)entry.Index,
entry.Value.c_str());
value_list.GetValueAtIndex(entry.Index)->Dump(&result.GetOutputStream());
result.GetOutputStream().Printf("\n");
}
return result.Succeeded();
}
bool CommandObjectHelp::DoExecute(Args &command, CommandReturnObject &result) {
CommandObject::CommandMap::iterator pos;
CommandObject *cmd_obj;
const size_t argc = command.GetArgumentCount();
// 'help' doesn't take any arguments, other than command names. If argc is 0,
// we show the user
// all commands (aliases and user commands if asked for). Otherwise every
// argument must be the name of a command or a sub-command.
if (argc == 0) {
uint32_t cmd_types = CommandInterpreter::eCommandTypesBuiltin;
if (m_options.m_show_aliases)
cmd_types |= CommandInterpreter::eCommandTypesAliases;
if (m_options.m_show_user_defined)
cmd_types |= CommandInterpreter::eCommandTypesUserDef;
if (m_options.m_show_hidden)
cmd_types |= CommandInterpreter::eCommandTypesHidden;
result.SetStatus(eReturnStatusSuccessFinishNoResult);
m_interpreter.GetHelp(result, cmd_types); // General help
} else {
// Get command object for the first command argument. Only search built-in
// command dictionary.
StringList matches;
auto command_name = command[0].ref;
cmd_obj = m_interpreter.GetCommandObject(command_name, &matches);
if (cmd_obj != nullptr) {
StringList matches;
bool all_okay = true;
CommandObject *sub_cmd_obj = cmd_obj;
// Loop down through sub_command dictionaries until we find the command
// object that corresponds to the help command entered.
std::string sub_command;
for (auto &entry : command.entries().drop_front()) {
sub_command = entry.ref;
matches.Clear();
if (sub_cmd_obj->IsAlias())
sub_cmd_obj =
((CommandAlias *)sub_cmd_obj)->GetUnderlyingCommand().get();
if (!sub_cmd_obj->IsMultiwordObject()) {
all_okay = false;
break;
} else {
CommandObject *found_cmd;
found_cmd =
sub_cmd_obj->GetSubcommandObject(sub_command.c_str(), &matches);
if (found_cmd == nullptr || matches.GetSize() > 1) {
all_okay = false;
break;
} else
sub_cmd_obj = found_cmd;
}
}
if (!all_okay || (sub_cmd_obj == nullptr)) {
std::string cmd_string;
command.GetCommandString(cmd_string);
if (matches.GetSize() >= 2) {
StreamString s;
s.Printf("ambiguous command %s", cmd_string.c_str());
size_t num_matches = matches.GetSize();
for (size_t match_idx = 0; match_idx < num_matches; match_idx++) {
s.Printf("\n\t%s", matches.GetStringAtIndex(match_idx));
}
s.Printf("\n");
result.AppendError(s.GetString());
result.SetStatus(eReturnStatusFailed);
return false;
} else if (!sub_cmd_obj) {
StreamString error_msg_stream;
GenerateAdditionalHelpAvenuesMessage(
&error_msg_stream, cmd_string.c_str(),
m_interpreter.GetCommandPrefix(), sub_command.c_str());
result.AppendError(error_msg_stream.GetString());
result.SetStatus(eReturnStatusFailed);
return false;
} else {
GenerateAdditionalHelpAvenuesMessage(
&result.GetOutputStream(), cmd_string.c_str(),
m_interpreter.GetCommandPrefix(), sub_command.c_str());
result.GetOutputStream().Printf(
"\nThe closest match is '%s'. Help on it follows.\n\n",
sub_cmd_obj->GetCommandName().str().c_str());
}
}
sub_cmd_obj->GenerateHelpText(result);
if (m_interpreter.AliasExists(command_name)) {
StreamString sstr;
m_interpreter.GetAlias(command_name)->GetAliasExpansion(sstr);
result.GetOutputStream().Printf("\n'%s' is an abbreviation for %s\n",
command[0].c_str(), sstr.GetData());
}
} else if (matches.GetSize() > 0) {
Stream &output_strm = result.GetOutputStream();
output_strm.Printf("Help requested with ambiguous command name, possible "
"completions:\n");
const size_t match_count = matches.GetSize();
for (size_t i = 0; i < match_count; i++) {
output_strm.Printf("\t%s\n", matches.GetStringAtIndex(i));
}
} else {
// Maybe the user is asking for help about a command argument rather than
// a command.
const CommandArgumentType arg_type =
CommandObject::LookupArgumentName(command_name);
if (arg_type != eArgTypeLastArg) {
Stream &output_strm = result.GetOutputStream();
CommandObject::GetArgumentHelp(output_strm, arg_type, m_interpreter);
result.SetStatus(eReturnStatusSuccessFinishNoResult);
} else {
StreamString error_msg_stream;
GenerateAdditionalHelpAvenuesMessage(&error_msg_stream, command_name,
m_interpreter.GetCommandPrefix(),
"");
result.AppendError(error_msg_stream.GetString());
result.SetStatus(eReturnStatusFailed);
}
}
}
return result.Succeeded();
}
