diff options
Diffstat (limited to 'source/Commands/CommandObjectArgs.cpp')
| -rw-r--r-- | source/Commands/CommandObjectArgs.cpp | 388 |
1 files changed, 180 insertions, 208 deletions
diff --git a/source/Commands/CommandObjectArgs.cpp b/source/Commands/CommandObjectArgs.cpp index 206a26f45e4d..d98a246e9684 100644 --- a/source/Commands/CommandObjectArgs.cpp +++ b/source/Commands/CommandObjectArgs.cpp @@ -12,12 +12,12 @@ // Other libraries and framework includes // Project includes #include "CommandObjectArgs.h" -#include "lldb/Interpreter/Args.h" +#include "Plugins/ExpressionParser/Clang/ClangExpressionVariable.h" #include "lldb/Core/Debugger.h" #include "lldb/Core/Module.h" #include "lldb/Core/Value.h" -#include "Plugins/ExpressionParser/Clang/ClangExpressionVariable.h" #include "lldb/Host/Host.h" +#include "lldb/Interpreter/Args.h" #include "lldb/Interpreter/CommandInterpreter.h" #include "lldb/Interpreter/CommandReturnObject.h" #include "lldb/Symbol/ClangASTContext.h" @@ -25,237 +25,209 @@ #include "lldb/Symbol/Variable.h" #include "lldb/Target/ABI.h" #include "lldb/Target/Process.h" +#include "lldb/Target/StackFrame.h" #include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" -#include "lldb/Target/StackFrame.h" + +#include "llvm/ADT/StringSwitch.h" using namespace lldb; using namespace lldb_private; -// This command is a toy. I'm just using it to have a way to construct the arguments to +// This command is a toy. I'm just using it to have a way to construct the +// arguments to // calling functions. // -CommandObjectArgs::CommandOptions::CommandOptions (CommandInterpreter &interpreter) : - Options(interpreter) -{ - // Keep only one place to reset the values to their defaults - OptionParsingStarting(); +static OptionDefinition g_arg_options[] = { + // clang-format off + { LLDB_OPT_SET_1, false, "debug", 'g', OptionParser::eNoArgument, nullptr, nullptr, 0, eArgTypeNone, "Enable verbose debug logging of the expression parsing and evaluation." }, + // clang-format on +}; + +CommandObjectArgs::CommandOptions::CommandOptions( + CommandInterpreter &interpreter) + : Options() { + // Keep only one place to reset the values to their defaults + OptionParsingStarting(nullptr); } CommandObjectArgs::CommandOptions::~CommandOptions() = default; -Error -CommandObjectArgs::CommandOptions::SetOptionValue (uint32_t option_idx, const char *option_arg) -{ - Error error; - - const int short_option = m_getopt_table[option_idx].val; - error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); - - return error; -} +Error CommandObjectArgs::CommandOptions::SetOptionValue( + uint32_t option_idx, llvm::StringRef option_arg, + ExecutionContext *execution_context) { + Error error; -void -CommandObjectArgs::CommandOptions::OptionParsingStarting () -{ -} + const int short_option = m_getopt_table[option_idx].val; + error.SetErrorStringWithFormat("invalid short option character '%c'", + short_option); -const OptionDefinition* -CommandObjectArgs::CommandOptions::GetDefinitions () -{ - return g_option_table; + return error; } -CommandObjectArgs::CommandObjectArgs (CommandInterpreter &interpreter) : - CommandObjectParsed (interpreter, - "args", - "When stopped at the start of a function, reads function arguments of type (u?)int(8|16|32|64)_t, (void|char)*", - "args"), - m_options (interpreter) -{ -} +void CommandObjectArgs::CommandOptions::OptionParsingStarting( + ExecutionContext *execution_context) {} -CommandObjectArgs::~CommandObjectArgs() = default; - -Options * -CommandObjectArgs::GetOptions () -{ - return &m_options; +llvm::ArrayRef<OptionDefinition> +CommandObjectArgs::CommandOptions::GetDefinitions() { + return llvm::makeArrayRef(g_arg_options); } -bool -CommandObjectArgs::DoExecute (Args& args, CommandReturnObject &result) -{ - ConstString target_triple; +CommandObjectArgs::CommandObjectArgs(CommandInterpreter &interpreter) + : CommandObjectParsed(interpreter, "args", + "When stopped at the start of a function, reads " + "function arguments of type (u?)int(8|16|32|64)_t, " + "(void|char)*", + "args"), + m_options(interpreter) {} - 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; - } - - const size_t num_args = args.GetArgumentCount (); - size_t arg_index; - - if (!num_args) - { - 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); +CommandObjectArgs::~CommandObjectArgs() = default; + +Options *CommandObjectArgs::GetOptions() { return &m_options; } + +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; - } - - lldb::StackFrameSP thread_cur_frame = thread->GetSelectedFrame (); - if (!thread_cur_frame) - { - result.AppendError ("The current thread has no current frame."); - result.SetStatus (eReturnStatusFailed); + } + if (int_pos == 1 && arg_type[0] != 'u') { + result.AppendErrorWithFormat("Invalid format: %s.\n", + arg_entry.c_str()); + 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); + } + 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; - 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 (arg_index = 0; arg_index < num_args; ++arg_index) - { - const char *arg_type_cstr = args.GetArgumentAtIndex(arg_index); - Value value; - value.SetValueType(Value::eValueTypeScalar); - CompilerType compiler_type; - - char *int_pos; - if ((int_pos = strstr (const_cast<char*>(arg_type_cstr), "int"))) - { - Encoding encoding = eEncodingSint; - - int width = 0; - - if (int_pos > arg_type_cstr + 1) - { - result.AppendErrorWithFormat ("Invalid format: %s.\n", arg_type_cstr); - result.SetStatus (eReturnStatusFailed); - return false; - } - if (int_pos == arg_type_cstr + 1 && arg_type_cstr[0] != 'u') - { - result.AppendErrorWithFormat ("Invalid format: %s.\n", arg_type_cstr); - result.SetStatus (eReturnStatusFailed); - return false; - } - if (arg_type_cstr[0] == 'u') - { - encoding = eEncodingUint; - } - - char *width_pos = int_pos + 3; - - if (!strcmp (width_pos, "8_t")) - width = 8; - else if (!strcmp (width_pos, "16_t")) - width = 16; - else if (!strcmp (width_pos, "32_t")) - width = 32; - else if (!strcmp (width_pos, "64_t")) - width = 64; - else - { - result.AppendErrorWithFormat ("Invalid format: %s.\n", arg_type_cstr); - result.SetStatus (eReturnStatusFailed); - return false; - } - 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_type_cstr, - (encoding == eEncodingSint ? "signed" : "unsigned"), - width); - - result.SetStatus (eReturnStatusFailed); - return false; - } - } - else if (strchr (arg_type_cstr, '*')) - { - if (!strcmp (arg_type_cstr, "void*")) - compiler_type = type_system->GetBasicTypeFromAST(eBasicTypeVoid).GetPointerType(); - else if (!strcmp (arg_type_cstr, "char*")) - compiler_type = type_system->GetBasicTypeFromAST(eBasicTypeChar).GetPointerType(); - else - { - result.AppendErrorWithFormat ("Invalid format: %s.\n", arg_type_cstr); - result.SetStatus (eReturnStatusFailed); - return false; - } - } - else - { - result.AppendErrorWithFormat ("Invalid format: %s.\n", arg_type_cstr); - 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); + 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; } - - result.GetOutputStream ().Printf("Arguments : \n"); - - for (arg_index = 0; arg_index < num_args; ++arg_index) - { - result.GetOutputStream ().Printf ("%" PRIu64 " (%s): ", (uint64_t)arg_index, args.GetArgumentAtIndex (arg_index)); - value_list.GetValueAtIndex (arg_index)->Dump (&result.GetOutputStream ()); - result.GetOutputStream ().Printf("\n"); - } - - return result.Succeeded(); -} -OptionDefinition -CommandObjectArgs::CommandOptions::g_option_table[] = -{ - { LLDB_OPT_SET_1, false, "debug", 'g', OptionParser::eNoArgument, nullptr, nullptr, 0, eArgTypeNone, "Enable verbose debug logging of the expression parsing and evaluation."}, - { 0, false, nullptr, 0, 0, nullptr, nullptr, 0, eArgTypeNone, nullptr } -}; + 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(); +} |