Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 1 | //===-- CommandObjectRegister.cpp -------------------------------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "CommandObjectRegister.h" |
| 11 | |
| 12 | // C Includes |
| 13 | // C++ Includes |
| 14 | // Other libraries and framework includes |
| 15 | // Project includes |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 16 | #include "lldb/Core/DataExtractor.h" |
| 17 | #include "lldb/Core/Scalar.h" |
Greg Clayton | 63094e0 | 2010-06-23 01:19:29 +0000 | [diff] [blame] | 18 | #include "lldb/Core/Debugger.h" |
| 19 | #include "lldb/Interpreter/Args.h" |
| 20 | #include "lldb/Interpreter/CommandInterpreter.h" |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 21 | #include "lldb/Interpreter/CommandReturnObject.h" |
| 22 | #include "lldb/Target/ExecutionContext.h" |
| 23 | #include "lldb/Target/RegisterContext.h" |
| 24 | |
| 25 | using namespace lldb; |
| 26 | using namespace lldb_private; |
| 27 | |
| 28 | //---------------------------------------------------------------------- |
| 29 | // "register read" |
| 30 | //---------------------------------------------------------------------- |
| 31 | class CommandObjectRegisterRead : public CommandObject |
| 32 | { |
| 33 | public: |
| 34 | CommandObjectRegisterRead () : |
| 35 | CommandObject ("register read", |
| 36 | "Dump the one or more register values from the current frame.", |
| 37 | "register read [<reg-name1> [<reg-name2> [...]]]", |
| 38 | eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) |
| 39 | { |
| 40 | } |
| 41 | |
| 42 | virtual |
| 43 | ~CommandObjectRegisterRead () |
| 44 | { |
| 45 | } |
| 46 | |
| 47 | virtual bool |
Greg Clayton | 63094e0 | 2010-06-23 01:19:29 +0000 | [diff] [blame] | 48 | Execute |
| 49 | ( |
| 50 | CommandInterpreter &interpreter, |
| 51 | Args& command, |
| 52 | CommandReturnObject &result |
| 53 | ) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 54 | { |
| 55 | StreamString &output_stream = result.GetOutputStream(); |
| 56 | DataExtractor reg_data; |
Greg Clayton | 63094e0 | 2010-06-23 01:19:29 +0000 | [diff] [blame] | 57 | ExecutionContext exe_ctx(interpreter.GetDebugger().GetExecutionContext()); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 58 | RegisterContext *reg_context = exe_ctx.GetRegisterContext (); |
| 59 | |
| 60 | if (reg_context) |
| 61 | { |
| 62 | const RegisterInfo *reg_info = NULL; |
| 63 | if (command.GetArgumentCount() == 0) |
| 64 | { |
| 65 | uint32_t set_idx; |
| 66 | const uint32_t num_register_sets = reg_context->GetRegisterSetCount(); |
| 67 | for (set_idx = 0; set_idx < num_register_sets; ++set_idx) |
| 68 | { |
| 69 | uint32_t unavailable_count = 0; |
| 70 | const RegisterSet * const reg_set = reg_context->GetRegisterSet(set_idx); |
| 71 | output_stream.Printf ("%s:\n", reg_set->name); |
| 72 | output_stream.IndentMore (); |
| 73 | const uint32_t num_registers = reg_set->num_registers; |
| 74 | for (uint32_t reg_idx = 0; reg_idx < num_registers; ++reg_idx) |
| 75 | { |
| 76 | uint32_t reg = reg_set->registers[reg_idx]; |
| 77 | reg_info = reg_context->GetRegisterInfoAtIndex(reg); |
| 78 | if (reg_context->ReadRegisterBytes(reg, reg_data)) |
| 79 | { |
| 80 | output_stream.Indent (); |
| 81 | output_stream.Printf ("%-12s = ", reg_info ? reg_info->name : "<INVALID REGINFO>"); |
| 82 | reg_data.Dump(&output_stream, 0, reg_info->format, reg_info->byte_size, 1, UINT32_MAX, LLDB_INVALID_ADDRESS, 0, 0); |
| 83 | output_stream.EOL(); |
| 84 | } |
| 85 | else |
| 86 | { |
| 87 | ++unavailable_count; |
| 88 | } |
| 89 | } |
| 90 | if (unavailable_count) |
| 91 | { |
| 92 | output_stream.Indent (); |
| 93 | output_stream.Printf("%u registers were unavailable.\n", unavailable_count); |
| 94 | } |
| 95 | output_stream.IndentLess (); |
| 96 | output_stream.EOL(); |
| 97 | } |
| 98 | } |
| 99 | else |
| 100 | { |
| 101 | const char *arg_cstr; |
| 102 | for (int arg_idx = 0; (arg_cstr = command.GetArgumentAtIndex(arg_idx)) != NULL; ++arg_idx) |
| 103 | { |
| 104 | reg_info = reg_context->GetRegisterInfoByName(arg_cstr); |
| 105 | |
| 106 | if (reg_info) |
| 107 | { |
| 108 | output_stream.Printf("%-12s = ", reg_info->name); |
| 109 | if (reg_context->ReadRegisterBytes(reg_info->reg, reg_data)) |
| 110 | { |
| 111 | reg_data.Dump(&output_stream, 0, reg_info->format, reg_info->byte_size, 1, UINT32_MAX, LLDB_INVALID_ADDRESS, 0, 0); |
| 112 | } |
| 113 | else |
| 114 | { |
| 115 | output_stream.PutCString ("error: unavailable"); |
| 116 | } |
| 117 | output_stream.EOL(); |
| 118 | } |
| 119 | else |
| 120 | { |
| 121 | result.AppendErrorWithFormat ("Invalid register name '%s'.\n", arg_cstr); |
| 122 | } |
| 123 | } |
| 124 | } |
| 125 | } |
| 126 | else |
| 127 | { |
| 128 | result.AppendError ("no current frame"); |
| 129 | result.SetStatus (eReturnStatusFailed); |
| 130 | } |
| 131 | return result.Succeeded(); |
| 132 | } |
| 133 | }; |
| 134 | |
| 135 | |
| 136 | //---------------------------------------------------------------------- |
| 137 | // "register write" |
| 138 | //---------------------------------------------------------------------- |
| 139 | class CommandObjectRegisterWrite : public CommandObject |
| 140 | { |
| 141 | public: |
| 142 | CommandObjectRegisterWrite () : |
| 143 | CommandObject ("register write", |
| 144 | "Modify a single register value.", |
| 145 | "register write <reg-name> <value>", |
| 146 | eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) |
| 147 | { |
| 148 | } |
| 149 | |
| 150 | virtual |
| 151 | ~CommandObjectRegisterWrite () |
| 152 | { |
| 153 | } |
| 154 | |
| 155 | virtual bool |
Greg Clayton | 63094e0 | 2010-06-23 01:19:29 +0000 | [diff] [blame] | 156 | Execute |
| 157 | ( |
| 158 | CommandInterpreter &interpreter, |
| 159 | Args& command, |
| 160 | CommandReturnObject &result |
| 161 | ) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 162 | { |
| 163 | DataExtractor reg_data; |
Greg Clayton | 63094e0 | 2010-06-23 01:19:29 +0000 | [diff] [blame] | 164 | ExecutionContext exe_ctx(interpreter.GetDebugger().GetExecutionContext()); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 165 | RegisterContext *reg_context = exe_ctx.GetRegisterContext (); |
| 166 | |
| 167 | if (reg_context) |
| 168 | { |
| 169 | if (command.GetArgumentCount() != 2) |
| 170 | { |
| 171 | result.AppendError ("register write takes exactly 2 arguments: <reg-name> <value>"); |
| 172 | result.SetStatus (eReturnStatusFailed); |
| 173 | } |
| 174 | else |
| 175 | { |
| 176 | const char *reg_name = command.GetArgumentAtIndex(0); |
| 177 | const char *value_str = command.GetArgumentAtIndex(1); |
| 178 | const RegisterInfo *reg_info = reg_context->GetRegisterInfoByName(reg_name); |
| 179 | |
| 180 | if (reg_info) |
| 181 | { |
| 182 | Scalar scalar; |
| 183 | Error error(scalar.SetValueFromCString (value_str, reg_info->encoding, reg_info->byte_size)); |
| 184 | if (error.Success()) |
| 185 | { |
| 186 | if (reg_context->WriteRegisterValue(reg_info->reg, scalar)) |
| 187 | { |
| 188 | result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| 189 | return true; |
| 190 | } |
| 191 | } |
| 192 | else |
| 193 | { |
| 194 | result.AppendErrorWithFormat ("Failed to write register '%s' with value '%s': %s\n", |
| 195 | reg_name, |
| 196 | value_str, |
| 197 | error.AsCString()); |
| 198 | result.SetStatus (eReturnStatusFailed); |
| 199 | } |
| 200 | } |
| 201 | else |
| 202 | { |
| 203 | result.AppendErrorWithFormat ("Register not found for '%s'.\n", reg_name); |
| 204 | result.SetStatus (eReturnStatusFailed); |
| 205 | } |
| 206 | } |
| 207 | } |
| 208 | else |
| 209 | { |
| 210 | result.AppendError ("no current frame"); |
| 211 | result.SetStatus (eReturnStatusFailed); |
| 212 | } |
| 213 | return result.Succeeded(); |
| 214 | } |
| 215 | }; |
| 216 | |
| 217 | |
| 218 | //---------------------------------------------------------------------- |
| 219 | // CommandObjectRegister constructor |
| 220 | //---------------------------------------------------------------------- |
Greg Clayton | 63094e0 | 2010-06-23 01:19:29 +0000 | [diff] [blame] | 221 | CommandObjectRegister::CommandObjectRegister(CommandInterpreter &interpreter) : |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 222 | CommandObjectMultiword ("register", |
| 223 | "Access thread registers.", |
| 224 | "register [read|write] ...") |
| 225 | { |
Greg Clayton | 63094e0 | 2010-06-23 01:19:29 +0000 | [diff] [blame] | 226 | LoadSubCommand (interpreter, "read", CommandObjectSP (new CommandObjectRegisterRead ())); |
| 227 | LoadSubCommand (interpreter, "write", CommandObjectSP (new CommandObjectRegisterWrite ())); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | |
| 231 | //---------------------------------------------------------------------- |
| 232 | // Destructor |
| 233 | //---------------------------------------------------------------------- |
| 234 | CommandObjectRegister::~CommandObjectRegister() |
| 235 | { |
| 236 | } |