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