//===-- OptionGroupFormat.cpp -----------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "lldb/lldb-python.h" #include "lldb/Interpreter/OptionGroupFormat.h" // C Includes // C++ Includes // Other libraries and framework includes // Project includes #include "lldb/Core/ArchSpec.h" #include "lldb/Interpreter/CommandInterpreter.h" #include "lldb/Target/ExecutionContext.h" #include "lldb/Target/Target.h" #include "lldb/Utility/Utils.h" using namespace lldb; using namespace lldb_private; OptionGroupFormat::OptionGroupFormat (lldb::Format default_format, uint64_t default_byte_size, uint64_t default_count) : m_format (default_format, default_format), m_byte_size (default_byte_size, default_byte_size), m_count (default_count, default_count), m_prev_gdb_format('x'), m_prev_gdb_size('w') { } OptionGroupFormat::~OptionGroupFormat () { } static OptionDefinition g_option_table[] = { { LLDB_OPT_SET_1, false, "format" ,'f', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeFormat , "Specify a format to be used for display."}, { LLDB_OPT_SET_2, false, "gdb-format",'G', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeGDBFormat, "Specify a format using a GDB format specifier string."}, { LLDB_OPT_SET_3, false, "size" ,'s', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeByteSize , "The size in bytes to use when displaying with the selected format."}, { LLDB_OPT_SET_4, false, "count" ,'c', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeCount , "The number of total items to display."}, }; uint32_t OptionGroupFormat::GetNumDefinitions () { if (m_byte_size.GetDefaultValue() < UINT64_MAX) { if (m_count.GetDefaultValue() < UINT64_MAX) return 4; else return 3; } return 2; } const OptionDefinition * OptionGroupFormat::GetDefinitions () { return g_option_table; } Error OptionGroupFormat::SetOptionValue (CommandInterpreter &interpreter, uint32_t option_idx, const char *option_arg) { Error error; const int short_option = g_option_table[option_idx].short_option; switch (short_option) { case 'f': error = m_format.SetValueFromCString (option_arg); break; case 'c': if (m_count.GetDefaultValue() == 0) { error.SetErrorString ("--count option is disabled"); } else { error = m_count.SetValueFromCString (option_arg); if (m_count.GetCurrentValue() == 0) error.SetErrorStringWithFormat("invalid --count option value '%s'", option_arg); } break; case 's': if (m_byte_size.GetDefaultValue() == 0) { error.SetErrorString ("--size option is disabled"); } else { error = m_byte_size.SetValueFromCString (option_arg); if (m_byte_size.GetCurrentValue() == 0) error.SetErrorStringWithFormat("invalid --size option value '%s'", option_arg); } break; case 'G': { char *end = nullptr; const char *gdb_format_cstr = option_arg; uint64_t count = 0; if (::isdigit (gdb_format_cstr[0])) { count = strtoull (gdb_format_cstr, &end, 0); if (option_arg != end) gdb_format_cstr = end; // We have a valid count, advance the string position else count = 0; } Format format = eFormatDefault; uint32_t byte_size = 0; while (ParserGDBFormatLetter (interpreter, gdb_format_cstr[0], format, byte_size)) { ++gdb_format_cstr; } // We the first character of the "gdb_format_cstr" is not the // NULL terminator, we didn't consume the entire string and // something is wrong. Also, if none of the format, size or count // was specified correctly, then abort. if (gdb_format_cstr[0] || (format == eFormatInvalid && byte_size == 0 && count == 0)) { // Nothing got set correctly error.SetErrorStringWithFormat ("invalid gdb format string '%s'", option_arg); return error; } // At least one of the format, size or count was set correctly. // Anything that wasn't set correctly should be set to the // previous default if (format == eFormatInvalid) ParserGDBFormatLetter (interpreter, m_prev_gdb_format, format, byte_size); const bool byte_size_enabled = m_byte_size.GetDefaultValue() < UINT64_MAX; const bool count_enabled = m_count.GetDefaultValue() < UINT64_MAX; if (byte_size_enabled) { // Byte size is enabled if (byte_size == 0) ParserGDBFormatLetter (interpreter, m_prev_gdb_size, format, byte_size); } else { // Byte size is disabled, make sure it wasn't specified // but if this is an address, it's actually necessary to // specify one so don't error out if (byte_size > 0 && format != lldb::eFormatAddressInfo) { error.SetErrorString ("this command doesn't support specifying a byte size"); return error; } } if (count_enabled) { // Count is enabled and was not set, set it to the default for gdb format statements (which is 1). if (count == 0) count = 1; } else { // Count is disabled, make sure it wasn't specified if (count > 0) { error.SetErrorString ("this command doesn't support specifying a count"); return error; } } m_format.SetCurrentValue (format); m_format.SetOptionWasSet (); if (byte_size_enabled) { m_byte_size.SetCurrentValue (byte_size); m_byte_size.SetOptionWasSet (); } if (count_enabled) { m_count.SetCurrentValue(count); m_count.SetOptionWasSet (); } } break; default: error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option); break; } return error; } bool OptionGroupFormat::ParserGDBFormatLetter (CommandInterpreter &interpreter, char format_letter, Format &format, uint32_t &byte_size) { m_has_gdb_format = true; switch (format_letter) { case 'o': format = eFormatOctal; m_prev_gdb_format = format_letter; return true; case 'x': format = eFormatHex; m_prev_gdb_format = format_letter; return true; case 'd': format = eFormatDecimal; m_prev_gdb_format = format_letter; return true; case 'u': format = eFormatUnsigned; m_prev_gdb_format = format_letter; return true; case 't': format = eFormatBinary; m_prev_gdb_format = format_letter; return true; case 'f': format = eFormatFloat; m_prev_gdb_format = format_letter; return true; case 'a': format = eFormatAddressInfo; { ExecutionContext exe_ctx(interpreter.GetExecutionContext()); Target *target = exe_ctx.GetTargetPtr(); if (target) byte_size = target->GetArchitecture().GetAddressByteSize(); m_prev_gdb_format = format_letter; return true; } case 'i': format = eFormatInstruction; m_prev_gdb_format = format_letter; return true; case 'c': format = eFormatChar; m_prev_gdb_format = format_letter; return true; case 's': format = eFormatCString; m_prev_gdb_format = format_letter; return true; case 'T': format = eFormatOSType; m_prev_gdb_format = format_letter; return true; case 'A': format = eFormatHexFloat; m_prev_gdb_format = format_letter; return true; case 'b': byte_size = 1; m_prev_gdb_size = format_letter; return true; case 'h': byte_size = 2; m_prev_gdb_size = format_letter; return true; case 'w': byte_size = 4; m_prev_gdb_size = format_letter; return true; case 'g': byte_size = 8; m_prev_gdb_size = format_letter; return true; default: break; } return false; } void OptionGroupFormat::OptionParsingStarting (CommandInterpreter &interpreter) { m_format.Clear(); m_byte_size.Clear(); m_count.Clear(); m_has_gdb_format = false; }