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Diffstat (limited to 'source/Interpreter/OptionGroupFormat.cpp')
| -rw-r--r-- | source/Interpreter/OptionGroupFormat.cpp | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/source/Interpreter/OptionGroupFormat.cpp b/source/Interpreter/OptionGroupFormat.cpp new file mode 100644 index 000000000000..790cbb668fa1 --- /dev/null +++ b/source/Interpreter/OptionGroupFormat.cpp @@ -0,0 +1,249 @@ +//===-- 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', required_argument, NULL, 0, eArgTypeFormat , "Specify a format to be used for display."}, +{ LLDB_OPT_SET_2, false, "gdb-format",'G', required_argument, NULL, 0, eArgTypeGDBFormat, "Specify a format using a GDB format specifier string."}, +{ LLDB_OPT_SET_3, false, "size" ,'s', required_argument, NULL, 0, eArgTypeByteSize , "The size in bytes to use when displaying with the selected format."}, +{ LLDB_OPT_SET_4, false, "count" ,'c', required_argument, NULL, 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 = NULL; + 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 + if (byte_size > 0) + { + 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; +} |