diff options
Diffstat (limited to 'lldb/source/Commands/CommandObjectMemory.cpp')
| -rw-r--r-- | lldb/source/Commands/CommandObjectMemory.cpp | 122 |
1 files changed, 114 insertions, 8 deletions
diff --git a/lldb/source/Commands/CommandObjectMemory.cpp b/lldb/source/Commands/CommandObjectMemory.cpp index 3b14b7e60c1..1ae8741da18 100644 --- a/lldb/source/Commands/CommandObjectMemory.cpp +++ b/lldb/source/Commands/CommandObjectMemory.cpp @@ -16,27 +16,29 @@ // Project includes #include "CommandObjectMemory.h" +#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h" #include "lldb/Core/DataBufferHeap.h" #include "lldb/Core/DataExtractor.h" #include "lldb/Core/Debugger.h" #include "lldb/Core/Module.h" +#include "lldb/Core/Section.h" #include "lldb/Core/StreamString.h" #include "lldb/Core/ValueObjectMemory.h" #include "lldb/DataFormatters/ValueObjectPrinter.h" -#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h" #include "lldb/Host/StringConvert.h" #include "lldb/Interpreter/Args.h" -#include "lldb/Interpreter/CommandReturnObject.h" #include "lldb/Interpreter/CommandInterpreter.h" -#include "lldb/Interpreter/Options.h" +#include "lldb/Interpreter/CommandReturnObject.h" #include "lldb/Interpreter/OptionGroupFormat.h" #include "lldb/Interpreter/OptionGroupOutputFile.h" #include "lldb/Interpreter/OptionGroupValueObjectDisplay.h" #include "lldb/Interpreter/OptionValueString.h" +#include "lldb/Interpreter/Options.h" #include "lldb/Symbol/ClangASTContext.h" -#include "lldb/Symbol/TypeList.h" #include "lldb/Symbol/SymbolFile.h" +#include "lldb/Symbol/TypeList.h" #include "lldb/Target/MemoryHistory.h" +#include "lldb/Target/MemoryRegionInfo.h" #include "lldb/Target/Process.h" #include "lldb/Target/StackFrame.h" #include "lldb/Target/Thread.h" @@ -1767,6 +1769,109 @@ protected: }; //------------------------------------------------------------------------- +// CommandObjectMemoryRegion +//------------------------------------------------------------------------- +#pragma mark CommandObjectMemoryRegion + +class CommandObjectMemoryRegion : public CommandObjectParsed +{ +public: + CommandObjectMemoryRegion(CommandInterpreter &interpreter) + : CommandObjectParsed(interpreter, "memory region", + "Get information on a memory region that contains an address in the current process.", + "memory region ADDR", + eCommandRequiresProcess | eCommandTryTargetAPILock | eCommandProcessMustBeLaunched), + m_prev_end_addr(LLDB_INVALID_ADDRESS) + { + } + + ~CommandObjectMemoryRegion() override = default; + +protected: + bool + DoExecute(Args &command, CommandReturnObject &result) override + { + ProcessSP process_sp = m_exe_ctx.GetProcessSP(); + if (process_sp) + { + Error error; + lldb::addr_t load_addr = m_prev_end_addr; + m_prev_end_addr = LLDB_INVALID_ADDRESS; + + const size_t argc = command.GetArgumentCount(); + if (argc > 1 || (argc == 0 && load_addr == LLDB_INVALID_ADDRESS)) + { + result.AppendErrorWithFormat("'%s' takes one argument:\nUsage: %s\n", m_cmd_name.c_str(), + m_cmd_syntax.c_str()); + result.SetStatus(eReturnStatusFailed); + } + else + { + const char *load_addr_cstr = command.GetArgumentAtIndex(0); + if (command.GetArgumentCount() == 1) + { + load_addr = Args::StringToAddress(&m_exe_ctx, load_addr_cstr, LLDB_INVALID_ADDRESS, &error); + if (error.Fail() || load_addr == LLDB_INVALID_ADDRESS) + { + result.AppendErrorWithFormat("invalid address argument \"%s\": %s\n", load_addr_cstr, + error.AsCString()); + result.SetStatus(eReturnStatusFailed); + } + } + + lldb_private::MemoryRegionInfo range_info; + error = process_sp->GetMemoryRegionInfo(load_addr, range_info); + if (error.Success()) + { + lldb_private::Address addr; + ConstString section_name; + if (process_sp->GetTarget().ResolveLoadAddress(load_addr, addr)) + { + SectionSP section_sp(addr.GetSection()); + if (section_sp) + { + // Got the top most section, not the deepest section + while (section_sp->GetParent()) + section_sp = section_sp->GetParent(); + section_name = section_sp->GetName(); + } + } + result.AppendMessageWithFormat( + "[0x%16.16" PRIx64 "-0x%16.16" PRIx64 ") %c%c%c%s%s\n", range_info.GetRange().GetRangeBase(), + range_info.GetRange().GetRangeEnd(), range_info.GetReadable() ? 'r' : '-', + range_info.GetWritable() ? 'w' : '-', range_info.GetExecutable() ? 'x' : '-', + section_name ? " " : "", section_name ? section_name.AsCString() : ""); + m_prev_end_addr = range_info.GetRange().GetRangeEnd(); + result.SetStatus(eReturnStatusSuccessFinishResult); + } + else + { + result.SetStatus(eReturnStatusFailed); + result.AppendErrorWithFormat("%s\n", error.AsCString()); + } + } + } + else + { + m_prev_end_addr = LLDB_INVALID_ADDRESS; + result.AppendError("invalid process"); + result.SetStatus(eReturnStatusFailed); + } + return result.Succeeded(); + } + + const char * + GetRepeatCommand(Args ¤t_command_args, uint32_t index) override + { + // If we repeat this command, repeat it without any arguments so we can + // show the next memory range + return m_cmd_name.c_str(); + } + + lldb::addr_t m_prev_end_addr; +}; + +//------------------------------------------------------------------------- // CommandObjectMemory //------------------------------------------------------------------------- @@ -1776,10 +1881,11 @@ CommandObjectMemory::CommandObjectMemory (CommandInterpreter &interpreter) : "A set of commands for operating on memory.", "memory <subcommand> [<subcommand-options>]") { - LoadSubCommand ("find", CommandObjectSP (new CommandObjectMemoryFind (interpreter))); - LoadSubCommand ("read", CommandObjectSP (new CommandObjectMemoryRead (interpreter))); - LoadSubCommand ("write", CommandObjectSP (new CommandObjectMemoryWrite (interpreter))); - LoadSubCommand ("history", CommandObjectSP (new CommandObjectMemoryHistory (interpreter))); + LoadSubCommand("find", CommandObjectSP(new CommandObjectMemoryFind(interpreter))); + LoadSubCommand("read", CommandObjectSP(new CommandObjectMemoryRead(interpreter))); + LoadSubCommand("write", CommandObjectSP(new CommandObjectMemoryWrite(interpreter))); + LoadSubCommand("history", CommandObjectSP(new CommandObjectMemoryHistory(interpreter))); + LoadSubCommand("region", CommandObjectSP(new CommandObjectMemoryRegion(interpreter))); } CommandObjectMemory::~CommandObjectMemory() = default; |
