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llvm-project/lldb/source/Commands/CommandObjectDisassemble.cpp
Greg Clayton 6dbd39838d Fixed a missing newline when dumping mixed disassembly. 
Added a "bool show_fullpaths" to many more objects that were
previously always dumping full paths.

Fixed a few places where the DWARF was not indexed when we
we needed it to be when making queries. Also fixed an issue
where the DWARF in .o files wasn't searching all .o files
for the types.

Fixed an issue with the output from "image lookup --type <TYPENAME>"
where the name and byte size might not be resolved and might not
display. We now call the accessors so we end up seeing all of the
type info.

llvm-svn: 113951
2010-09-15 05:51:24 +00:00

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9.4 KiB
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//===-- CommandObjectDisassemble.cpp ----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "CommandObjectDisassemble.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/AddressRange.h"
#include "lldb/Interpreter/Args.h"
#include "lldb/Interpreter/CommandCompletions.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Core/Disassembler.h"
#include "lldb/Interpreter/Options.h"
#include "lldb/Core/SourceManager.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Symbol/Symbol.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#define DEFAULT_DISASM_BYTE_SIZE 32
using namespace lldb;
using namespace lldb_private;
CommandObjectDisassemble::CommandOptions::CommandOptions () :
Options(),
m_func_name(),
m_start_addr(),
m_end_addr ()
{
ResetOptionValues();
}
CommandObjectDisassemble::CommandOptions::~CommandOptions ()
{
}
Error
CommandObjectDisassemble::CommandOptions::SetOptionValue (int option_idx, const char *option_arg)
{
Error error;
char short_option = (char) m_getopt_table[option_idx].val;
switch (short_option)
{
case 'm':
show_mixed = true;
break;
case 'c':
num_lines_context = Args::StringToUInt32(option_arg, 0, 0);
break;
case 'b':
show_bytes = true;
break;
case 's':
m_start_addr = Args::StringToUInt64(optarg, LLDB_INVALID_ADDRESS, 0);
if (m_start_addr == LLDB_INVALID_ADDRESS)
m_start_addr = Args::StringToUInt64(optarg, LLDB_INVALID_ADDRESS, 16);
if (m_start_addr == LLDB_INVALID_ADDRESS)
error.SetErrorStringWithFormat ("Invalid start address string '%s'.\n", optarg);
break;
case 'e':
m_end_addr = Args::StringToUInt64(optarg, LLDB_INVALID_ADDRESS, 0);
if (m_end_addr == LLDB_INVALID_ADDRESS)
m_end_addr = Args::StringToUInt64(optarg, LLDB_INVALID_ADDRESS, 16);
if (m_end_addr == LLDB_INVALID_ADDRESS)
error.SetErrorStringWithFormat ("Invalid end address string '%s'.\n", optarg);
break;
case 'n':
m_func_name = option_arg;
break;
case 'r':
raw = true;
break;
default:
error.SetErrorStringWithFormat("Unrecognized short option '%c'.\n", short_option);
break;
}
return error;
}
void
CommandObjectDisassemble::CommandOptions::ResetOptionValues ()
{
Options::ResetOptionValues();
show_mixed = false;
show_bytes = false;
num_lines_context = 0;
m_func_name.clear();
m_start_addr = LLDB_INVALID_ADDRESS;
m_end_addr = LLDB_INVALID_ADDRESS;
raw = false;
}
const lldb::OptionDefinition*
CommandObjectDisassemble::CommandOptions::GetDefinitions ()
{
return g_option_table;
}
lldb::OptionDefinition
CommandObjectDisassemble::CommandOptions::g_option_table[] =
{
{ LLDB_OPT_SET_ALL, false, "bytes", 'b', no_argument, NULL, 0, NULL, "Show opcode bytes when disassembling."},
{ LLDB_OPT_SET_ALL, false, "context", 'c', required_argument, NULL, 0, "<num-lines>", "Number of context lines of source to show."},
{ LLDB_OPT_SET_ALL, false, "mixed", 'm', no_argument, NULL, 0, NULL, "Enable mixed source and assembly display."},
{ LLDB_OPT_SET_ALL, false, "raw", 'r', no_argument, NULL, 0, NULL, "Print raw disassembly with no symbol information."},
{ LLDB_OPT_SET_1, true, "start-address", 's', required_argument, NULL, 0, "<start-address>", "Address to start disassembling."},
{ LLDB_OPT_SET_1, false, "end-address", 'e', required_argument, NULL, 0, "<end-address>", "Address to start disassembling."},
{ LLDB_OPT_SET_2, true, "name", 'n', required_argument, NULL, CommandCompletions::eSymbolCompletion, "<function-name>", "Disassemble entire contents of the given function name."},
{ LLDB_OPT_SET_3, false, "current-frame", 'f', no_argument, NULL, 0, "<current-frame>", "Disassemble entire contents of the current frame's function."},
{ 0, false, NULL, 0, 0, NULL, 0, NULL, NULL }
};
//-------------------------------------------------------------------------
// CommandObjectDisassemble
//-------------------------------------------------------------------------
CommandObjectDisassemble::CommandObjectDisassemble () :
CommandObject ("disassemble",
"Disassemble bytes in the current function, or elsewhere in the executable program as specified by the user.",
"disassemble [<cmd-options>]")
{
}
CommandObjectDisassemble::~CommandObjectDisassemble()
{
}
bool
CommandObjectDisassemble::Execute
(
CommandInterpreter &interpreter,
Args& command,
CommandReturnObject &result
)
{
Target *target = interpreter.GetDebugger().GetSelectedTarget().get();
if (target == NULL)
{
result.AppendError ("invalid target, set executable file using 'file' command");
result.SetStatus (eReturnStatusFailed);
return false;
}
ArchSpec arch(target->GetArchitecture());
if (!arch.IsValid())
{
result.AppendError ("target needs valid architecure in order to be able to disassemble");
result.SetStatus (eReturnStatusFailed);
return false;
}
Disassembler *disassembler = Disassembler::FindPlugin(arch);
if (disassembler == NULL)
{
result.AppendErrorWithFormat ("Unable to find Disassembler plug-in for %s architecture.\n", arch.AsCString());
result.SetStatus (eReturnStatusFailed);
return false;
}
result.SetStatus (eReturnStatusSuccessFinishResult);
if (command.GetArgumentCount() != 0)
{
result.AppendErrorWithFormat ("\"disassemble\" doesn't take any arguments.\n");
result.SetStatus (eReturnStatusFailed);
return false;
}
ExecutionContext exe_ctx(interpreter.GetDebugger().GetExecutionContext());
if (m_options.show_mixed && m_options.num_lines_context == 0)
m_options.num_lines_context = 1;
if (!m_options.m_func_name.empty())
{
ConstString name(m_options.m_func_name.c_str());
if (Disassembler::Disassemble (interpreter.GetDebugger(),
arch,
exe_ctx,
name,
NULL, // Module *
m_options.show_mixed ? m_options.num_lines_context : 0,
m_options.show_bytes,
result.GetOutputStream()))
{
result.SetStatus (eReturnStatusSuccessFinishResult);
}
else
{
result.AppendErrorWithFormat ("Unable to find symbol with name '%s'.\n", name.GetCString());
result.SetStatus (eReturnStatusFailed);
}
}
else
{
AddressRange range;
if (m_options.m_start_addr != LLDB_INVALID_ADDRESS)
{
range.GetBaseAddress().SetOffset (m_options.m_start_addr);
if (m_options.m_end_addr != LLDB_INVALID_ADDRESS)
{
if (m_options.m_end_addr < m_options.m_start_addr)
{
result.AppendErrorWithFormat ("End address before start address.\n");
result.SetStatus (eReturnStatusFailed);
return false;
}
range.SetByteSize (m_options.m_end_addr - m_options.m_start_addr);
}
else
range.SetByteSize (DEFAULT_DISASM_BYTE_SIZE);
}
else
{
if (exe_ctx.frame)
{
SymbolContext sc(exe_ctx.frame->GetSymbolContext(eSymbolContextFunction | eSymbolContextSymbol));
if (sc.function)
range = sc.function->GetAddressRange();
else if (sc.symbol && sc.symbol->GetAddressRangePtr())
range = *sc.symbol->GetAddressRangePtr();
else
range.GetBaseAddress() = exe_ctx.frame->GetFrameCodeAddress();
}
else
{
result.AppendError ("invalid frame");
result.SetStatus (eReturnStatusFailed);
return false;
}
}
if (range.GetByteSize() == 0)
range.SetByteSize(DEFAULT_DISASM_BYTE_SIZE);
if (Disassembler::Disassemble (interpreter.GetDebugger(),
arch,
exe_ctx,
range,
m_options.show_mixed ? m_options.num_lines_context : 0,
m_options.show_bytes,
result.GetOutputStream()))
{
result.SetStatus (eReturnStatusSuccessFinishResult);
}
else
{
result.AppendErrorWithFormat ("Failed to disassemble memory at 0x%8.8llx.\n", m_options.m_start_addr);
result.SetStatus (eReturnStatusFailed);
}
}
return result.Succeeded();
}
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