Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 1 | //===-- Driver.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 "Driver.h" |
| 11 | |
| 12 | #include <getopt.h> |
| 13 | #include <libgen.h> |
| 14 | #include <sys/ioctl.h> |
| 15 | #include <termios.h> |
| 16 | #include <unistd.h> |
Eli Friedman | f2f321d | 2010-06-09 09:50:17 +0000 | [diff] [blame] | 17 | #include <string.h> |
| 18 | #include <stdlib.h> |
| 19 | #include <limits.h> |
Eli Friedman | d6e167d | 2010-06-09 19:11:30 +0000 | [diff] [blame] | 20 | #include <fcntl.h> |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 21 | |
| 22 | #include <string> |
| 23 | |
| 24 | #include "IOChannel.h" |
Eli Friedman | f2f321d | 2010-06-09 09:50:17 +0000 | [diff] [blame] | 25 | #include "lldb/API/SBCommandInterpreter.h" |
| 26 | #include "lldb/API/SBCommandReturnObject.h" |
| 27 | #include "lldb/API/SBCommunication.h" |
| 28 | #include "lldb/API/SBDebugger.h" |
| 29 | #include "lldb/API/SBEvent.h" |
| 30 | #include "lldb/API/SBHostOS.h" |
| 31 | #include "lldb/API/SBListener.h" |
| 32 | #include "lldb/API/SBSourceManager.h" |
| 33 | #include "lldb/API/SBTarget.h" |
| 34 | #include "lldb/API/SBThread.h" |
| 35 | #include "lldb/API/SBProcess.h" |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 36 | |
| 37 | using namespace lldb; |
| 38 | |
| 39 | static void reset_stdin_termios (); |
| 40 | static struct termios g_old_stdin_termios; |
| 41 | |
| 42 | // In the Driver::MainLoop, we change the terminal settings. This function is |
| 43 | // added as an atexit handler to make sure we clean them up. |
| 44 | static void |
| 45 | reset_stdin_termios () |
| 46 | { |
| 47 | ::tcsetattr (STDIN_FILENO, TCSANOW, &g_old_stdin_termios); |
| 48 | } |
| 49 | |
| 50 | static lldb::OptionDefinition g_options[] = |
| 51 | { |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 52 | { LLDB_OPT_SET_1, true, "help", 'h', no_argument, NULL, NULL, NULL, |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 53 | "Prints out the usage information for the LLDB debugger." }, |
| 54 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 55 | { LLDB_OPT_SET_2, true, "version", 'v', no_argument, NULL, NULL, NULL, |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 56 | "Prints out the current version number of the LLDB debugger." }, |
| 57 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 58 | { LLDB_OPT_SET_3, false, "arch", 'a', required_argument, NULL, NULL, "<architecture>", |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 59 | "Tells the debugger to use the specified architecture when starting and running the program. <architecture> must be one of the architectures for which the program was compiled." }, |
| 60 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 61 | { LLDB_OPT_SET_3 | LLDB_OPT_SET_4, false, "script-language",'l', required_argument, NULL, NULL, "<scripting-language>", |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 62 | "Tells the debugger to use the specified scripting language for user-defined scripts, rather than the default. Valid scripting languages that can be specified include Python, Perl, Ruby and Tcl. Currently only the Python extensions have been implemented." }, |
| 63 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 64 | { LLDB_OPT_SET_3 | LLDB_OPT_SET_4, false, "debug", 'd', no_argument, NULL, NULL, NULL, |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 65 | "Tells the debugger to print out extra information for debugging itself." }, |
| 66 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 67 | { LLDB_OPT_SET_3 | LLDB_OPT_SET_4, false, "source", 's', required_argument, NULL, NULL, "<file>", |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 68 | "Tells the debugger to read in and execute the file <file>, which should contain lldb commands." }, |
| 69 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 70 | { LLDB_OPT_SET_3, false, "file", 'f', required_argument, NULL, NULL, "<filename>", |
| 71 | "Tells the debugger to use the file <filename> as the program to be debugged." }, |
| 72 | |
| 73 | { LLDB_OPT_SET_4, false, "crash-log", 'c', required_argument, NULL, NULL, "<file>", |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 74 | "Load executable images from a crash log for symbolication." }, |
| 75 | |
| 76 | { 0, false, NULL, 0, 0, NULL, NULL, NULL, NULL } |
| 77 | }; |
| 78 | |
| 79 | |
| 80 | Driver::Driver () : |
| 81 | SBBroadcaster ("Driver"), |
| 82 | m_editline_pty (), |
| 83 | m_editline_slave_fh (NULL), |
| 84 | m_editline_reader (), |
| 85 | m_io_channel_ap (), |
| 86 | m_option_data (), |
| 87 | m_waiting_for_command (false) |
| 88 | { |
| 89 | } |
| 90 | |
| 91 | Driver::~Driver () |
| 92 | { |
| 93 | } |
| 94 | |
| 95 | void |
| 96 | Driver::CloseIOChannelFile () |
| 97 | { |
| 98 | // Write and End of File sequence to the file descriptor to ensure any |
| 99 | // read functions can exit. |
| 100 | char eof_str[] = "\x04"; |
| 101 | ::write (m_editline_pty.GetMasterFileDescriptor(), eof_str, strlen(eof_str)); |
| 102 | |
| 103 | m_editline_pty.CloseMasterFileDescriptor(); |
| 104 | |
| 105 | if (m_editline_slave_fh) |
| 106 | { |
| 107 | ::fclose (m_editline_slave_fh); |
| 108 | m_editline_slave_fh = NULL; |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | // This function takes INDENT, which tells how many spaces to output at the front of each line; SPACES, which is |
| 113 | // a string that is output_max_columns long, containing spaces; and TEXT, which is the text that is to be output. |
| 114 | // It outputs the text, on multiple lines if necessary, to RESULT, with INDENT spaces at the front of each line. It |
| 115 | // breaks lines on spaces, tabs or newlines, shortening the line if necessary to not break in the middle of a word. |
| 116 | // It assumes that each output line should contain a maximum of OUTPUT_MAX_COLUMNS characters. |
| 117 | |
| 118 | void |
| 119 | OutputFormattedUsageText (FILE *out, int indent, char *spaces, const char *text, int output_max_columns) |
| 120 | { |
| 121 | int len = strlen (text); |
| 122 | std::string text_string (text); |
| 123 | std::string spaces_string (spaces); |
| 124 | |
| 125 | // Force indentation to be reasonable. |
| 126 | if (indent >= output_max_columns) |
| 127 | indent = 0; |
| 128 | |
| 129 | // Will it all fit on one line? |
| 130 | |
| 131 | if (len + indent < output_max_columns) |
| 132 | // Output as a single line |
| 133 | fprintf (out, "%s%s\n", spaces_string.substr (0, indent).c_str(), text); |
| 134 | else |
| 135 | { |
| 136 | // We need to break it up into multiple lines. |
| 137 | int text_width = output_max_columns - indent - 1; |
| 138 | int start = 0; |
| 139 | int end = start; |
| 140 | int final_end = len; |
| 141 | int sub_len; |
| 142 | |
| 143 | while (end < final_end) |
| 144 | { |
| 145 | // Dont start the 'text' on a space, since we're already outputting the indentation. |
| 146 | while ((start < final_end) && (text[start] == ' ')) |
| 147 | start++; |
| 148 | |
| 149 | end = start + text_width; |
| 150 | if (end > final_end) |
| 151 | end = final_end; |
| 152 | else |
| 153 | { |
| 154 | // If we're not at the end of the text, make sure we break the line on white space. |
| 155 | while (end > start |
| 156 | && text[end] != ' ' && text[end] != '\t' && text[end] != '\n') |
| 157 | end--; |
| 158 | } |
| 159 | sub_len = end - start; |
| 160 | std::string substring = text_string.substr (start, sub_len); |
| 161 | fprintf (out, "%s%s\n", spaces_string.substr(0, indent).c_str(), substring.c_str()); |
| 162 | start = end + 1; |
| 163 | } |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | void |
| 168 | ShowUsage (FILE *out, lldb::OptionDefinition *option_table, Driver::OptionData data) |
| 169 | { |
| 170 | uint32_t screen_width = 80; |
| 171 | uint32_t indent_level = 0; |
| 172 | const char *name = "lldb"; |
| 173 | char spaces[screen_width+1]; |
| 174 | uint32_t i; |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 175 | |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 176 | for (i = 0; i < screen_width; ++i) |
| 177 | spaces[i] = ' '; |
| 178 | spaces[i] = '\n'; |
| 179 | |
| 180 | std::string spaces_string (spaces); |
| 181 | |
| 182 | fprintf (out, "\nUsage:\n\n"); |
| 183 | |
| 184 | indent_level += 2; |
| 185 | |
| 186 | |
| 187 | // First, show each usage level set of options, e.g. <cmd> [options-for-level-0] |
| 188 | // <cmd> [options-for-level-1] |
| 189 | // etc. |
| 190 | |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 191 | uint32_t num_options; |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 192 | uint32_t num_option_sets = 0; |
| 193 | |
| 194 | for (num_options = 0; option_table[num_options].long_option != NULL; ++num_options) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 195 | { |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 196 | uint32_t this_usage_mask = option_table[num_options].usage_mask; |
| 197 | if (this_usage_mask == LLDB_OPT_SET_ALL) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 198 | { |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 199 | if (num_option_sets == 0) |
| 200 | num_option_sets = 1; |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 201 | } |
| 202 | else |
| 203 | { |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 204 | for (int j = 0; j < LLDB_MAX_NUM_OPTION_SETS; j++) |
| 205 | { |
| 206 | if (this_usage_mask & 1 << j) |
| 207 | { |
| 208 | if (num_option_sets <= j) |
| 209 | num_option_sets = j + 1; |
| 210 | } |
| 211 | } |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | for (uint32_t opt_set = 0; opt_set < num_option_sets; opt_set++) |
| 216 | { |
| 217 | uint32_t opt_set_mask; |
| 218 | |
| 219 | opt_set_mask = 1 << opt_set; |
| 220 | |
| 221 | if (opt_set > 0) |
| 222 | fprintf (out, "\n"); |
| 223 | fprintf (out, "%s%s", spaces_string.substr(0, indent_level).c_str(), name); |
| 224 | |
| 225 | for (uint32_t i = 0; i < num_options; ++i) |
| 226 | { |
| 227 | if (option_table[i].usage_mask & opt_set_mask) |
| 228 | { |
| 229 | if (option_table[i].required) |
| 230 | { |
| 231 | if (option_table[i].option_has_arg == required_argument) |
| 232 | fprintf (out, " -%c %s", option_table[i].short_option, option_table[i].argument_name); |
| 233 | else if (option_table[i].option_has_arg == optional_argument) |
| 234 | fprintf (out, " -%c [%s]", option_table[i].short_option, option_table[i].argument_name); |
| 235 | else |
| 236 | fprintf (out, " -%c", option_table[i].short_option); |
| 237 | } |
| 238 | else |
| 239 | { |
| 240 | if (option_table[i].option_has_arg == required_argument) |
| 241 | fprintf (out, " [-%c %s]", option_table[i].short_option, option_table[i].argument_name); |
| 242 | else if (option_table[i].option_has_arg == optional_argument) |
| 243 | fprintf (out, " [-%c [%s]]", option_table[i].short_option, option_table[i].argument_name); |
| 244 | else |
| 245 | fprintf (out, " [-%c]", option_table[i].short_option); |
| 246 | } |
| 247 | } |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 248 | } |
| 249 | } |
| 250 | |
| 251 | fprintf (out, "\n\n"); |
| 252 | |
| 253 | // Now print out all the detailed information about the various options: long form, short form and help text: |
| 254 | // -- long_name <argument> |
| 255 | // - short <argument> |
| 256 | // help text |
| 257 | |
| 258 | // This variable is used to keep track of which options' info we've printed out, because some options can be in |
| 259 | // more than one usage level, but we only want to print the long form of its information once. |
| 260 | |
| 261 | Driver::OptionData::OptionSet options_seen; |
| 262 | Driver::OptionData::OptionSet::iterator pos; |
| 263 | |
| 264 | indent_level += 5; |
| 265 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 266 | for (uint32_t i = 0; i < num_options; ++i) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 267 | { |
| 268 | // Only print this option if we haven't already seen it. |
| 269 | pos = options_seen.find (option_table[i].short_option); |
| 270 | if (pos == options_seen.end()) |
| 271 | { |
| 272 | options_seen.insert (option_table[i].short_option); |
| 273 | fprintf (out, "%s-%c ", spaces_string.substr(0, indent_level).c_str(), option_table[i].short_option); |
| 274 | if (option_table[i].argument_name != NULL) |
| 275 | fprintf (out, "%s", option_table[i].argument_name); |
| 276 | fprintf (out, "\n"); |
| 277 | fprintf (out, "%s--%s ", spaces_string.substr(0, indent_level).c_str(), option_table[i].long_option); |
| 278 | if (option_table[i].argument_name != NULL) |
| 279 | fprintf (out, "%s", option_table[i].argument_name); |
| 280 | fprintf (out, "\n"); |
| 281 | indent_level += 5; |
| 282 | OutputFormattedUsageText (out, indent_level, spaces, option_table[i].usage_text, screen_width); |
| 283 | indent_level -= 5; |
| 284 | fprintf (out, "\n"); |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | indent_level -= 5; |
| 289 | |
| 290 | fprintf (out, "\n%s('%s <filename>' also works, to specify the file to be debugged.)\n\n", |
| 291 | spaces_string.substr(0, indent_level).c_str(), name); |
| 292 | } |
| 293 | |
| 294 | void |
| 295 | BuildGetOptTable (lldb::OptionDefinition *expanded_option_table, struct option **getopt_table, int num_options) |
| 296 | { |
| 297 | if (num_options == 0) |
| 298 | return; |
| 299 | |
| 300 | uint32_t i; |
| 301 | uint32_t j; |
| 302 | std::bitset<256> option_seen; |
| 303 | |
| 304 | for (i = 0, j = 0; i < num_options; ++i) |
| 305 | { |
| 306 | char short_opt = expanded_option_table[i].short_option; |
| 307 | |
| 308 | if (option_seen.test(short_opt) == false) |
| 309 | { |
| 310 | (*getopt_table)[j].name = expanded_option_table[i].long_option; |
| 311 | (*getopt_table)[j].has_arg = expanded_option_table[i].option_has_arg; |
| 312 | (*getopt_table)[j].flag = NULL; |
| 313 | (*getopt_table)[j].val = expanded_option_table[i].short_option; |
| 314 | option_seen.set(short_opt); |
| 315 | ++j; |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | (*getopt_table)[j].name = NULL; |
| 320 | (*getopt_table)[j].has_arg = 0; |
| 321 | (*getopt_table)[j].flag = NULL; |
| 322 | (*getopt_table)[j].val = 0; |
| 323 | |
| 324 | } |
| 325 | |
| 326 | SBError |
| 327 | ParseOptions (Driver::OptionData &data, int argc, const char **argv) |
| 328 | { |
| 329 | SBError error; |
| 330 | std::string option_string; |
| 331 | struct option *long_options = NULL; |
| 332 | int num_options; |
| 333 | |
| 334 | for (num_options = 0; g_options[num_options].long_option != NULL; ++num_options); |
| 335 | |
| 336 | if (num_options == 0) |
| 337 | { |
| 338 | if (argc > 1) |
| 339 | error.SetErrorStringWithFormat ("invalid number of options"); |
| 340 | return error; |
| 341 | } |
| 342 | |
| 343 | long_options = (struct option *) malloc ((num_options + 1) * sizeof (struct option)); |
| 344 | |
| 345 | BuildGetOptTable (g_options, &long_options, num_options); |
| 346 | |
| 347 | if (long_options == NULL) |
| 348 | { |
| 349 | error.SetErrorStringWithFormat ("invalid long options"); |
| 350 | return error; |
| 351 | } |
| 352 | |
| 353 | // Build the option_string argument for call to getopt_long. |
| 354 | |
| 355 | for (int i = 0; long_options[i].name != NULL; ++i) |
| 356 | { |
| 357 | if (long_options[i].flag == NULL) |
| 358 | { |
| 359 | option_string.push_back ((char) long_options[i].val); |
| 360 | switch (long_options[i].has_arg) |
| 361 | { |
| 362 | default: |
| 363 | case no_argument: |
| 364 | break; |
| 365 | case required_argument: |
| 366 | option_string.push_back (':'); |
| 367 | break; |
| 368 | case optional_argument: |
| 369 | option_string.append ("::"); |
| 370 | break; |
| 371 | } |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | // Prepare for & make calls to getopt_long. |
Eli Friedman | ef2bc87 | 2010-06-13 19:18:49 +0000 | [diff] [blame] | 376 | #if __GLIBC__ |
| 377 | optind = 0; |
| 378 | #else |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 379 | optreset = 1; |
| 380 | optind = 1; |
Eli Friedman | ef2bc87 | 2010-06-13 19:18:49 +0000 | [diff] [blame] | 381 | #endif |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 382 | int val; |
| 383 | while (1) |
| 384 | { |
| 385 | int long_options_index = -1; |
| 386 | val = ::getopt_long (argc, (char * const *) argv, option_string.c_str(), long_options, &long_options_index); |
| 387 | |
| 388 | if (val == -1) |
| 389 | break; |
| 390 | else if (val == '?') |
| 391 | { |
| 392 | data.m_print_help = true; |
| 393 | error.SetErrorStringWithFormat ("unknown or ambiguous option"); |
| 394 | break; |
| 395 | } |
| 396 | else if (val == 0) |
| 397 | continue; |
| 398 | else |
| 399 | { |
| 400 | data.m_seen_options.insert ((char) val); |
| 401 | if (long_options_index == -1) |
| 402 | { |
| 403 | for (int i = 0; |
| 404 | long_options[i].name || long_options[i].has_arg || long_options[i].flag || long_options[i].val; |
| 405 | ++i) |
| 406 | { |
| 407 | if (long_options[i].val == val) |
| 408 | { |
| 409 | long_options_index = i; |
| 410 | break; |
| 411 | } |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | if (long_options_index >= 0) |
| 416 | { |
| 417 | error = Driver::SetOptionValue (long_options_index, |
| 418 | long_options[long_options_index].has_arg == no_argument ? NULL : optarg, |
| 419 | data); |
| 420 | } |
| 421 | else |
| 422 | { |
| 423 | error.SetErrorStringWithFormat ("invalid option with value %i", val); |
| 424 | } |
| 425 | if (error.Fail()) |
| 426 | break; |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | return error; |
| 431 | } |
| 432 | |
| 433 | Driver::OptionData::OptionData () : |
| 434 | m_filename(), |
| 435 | m_script_lang (lldb::eScriptLanguageDefault), |
| 436 | m_source_command_files (), |
| 437 | m_debug_mode (false), |
| 438 | m_print_help (false), |
| 439 | m_print_version (false) |
| 440 | |
| 441 | { |
| 442 | } |
| 443 | |
| 444 | Driver::OptionData::~OptionData () |
| 445 | { |
| 446 | } |
| 447 | |
| 448 | void |
| 449 | Driver::OptionData::Clear () |
| 450 | { |
| 451 | m_filename.clear (); |
| 452 | m_script_lang = lldb::eScriptLanguageDefault; |
| 453 | m_source_command_files.clear (); |
| 454 | m_debug_mode = false; |
| 455 | m_print_help = false; |
| 456 | m_print_version = false; |
| 457 | } |
| 458 | |
| 459 | SBError |
| 460 | Driver::SetOptionValue (int option_idx, const char *option_arg, Driver::OptionData &option_data) |
| 461 | { |
| 462 | SBError error; |
| 463 | const char short_option = (char) g_options[option_idx].short_option; |
| 464 | |
| 465 | switch (short_option) |
| 466 | { |
| 467 | case 'h': |
| 468 | option_data.m_print_help = true; |
| 469 | break; |
| 470 | |
| 471 | case 'v': |
| 472 | option_data.m_print_version = true; |
| 473 | break; |
| 474 | |
| 475 | case 'c': |
| 476 | option_data.m_crash_log = option_arg; |
| 477 | break; |
| 478 | |
| 479 | case 'f': |
| 480 | { |
| 481 | SBFileSpec file(option_arg); |
| 482 | if (file.Exists()) |
| 483 | option_data.m_filename = option_arg; |
| 484 | else |
| 485 | error.SetErrorStringWithFormat("file specified in --file (-f) option doesn't exist: '%s'", option_arg); |
| 486 | } |
| 487 | break; |
| 488 | |
| 489 | case 'a': |
| 490 | if (!SBDebugger::SetDefaultArchitecture (option_arg)) |
| 491 | error.SetErrorStringWithFormat("invalid architecture in the -a or --arch option: '%s'", option_arg); |
| 492 | break; |
| 493 | |
| 494 | case 'l': |
| 495 | option_data.m_script_lang = SBDebugger::GetScriptingLanguage (option_arg); |
| 496 | break; |
| 497 | |
| 498 | case 'd': |
| 499 | option_data.m_debug_mode = true; |
| 500 | break; |
| 501 | |
| 502 | case 's': |
| 503 | { |
| 504 | SBFileSpec file(option_arg); |
| 505 | if (file.Exists()) |
| 506 | option_data.m_source_command_files.push_back (option_arg); |
| 507 | else |
| 508 | error.SetErrorStringWithFormat("file specified in --source (-s) option doesn't exist: '%s'", option_arg); |
| 509 | } |
| 510 | break; |
| 511 | |
| 512 | default: |
| 513 | option_data.m_print_help = true; |
| 514 | error.SetErrorStringWithFormat ("unrecognized option %c", short_option); |
| 515 | break; |
| 516 | } |
| 517 | |
| 518 | return error; |
| 519 | } |
| 520 | |
| 521 | void |
| 522 | Driver::ResetOptionValues () |
| 523 | { |
| 524 | m_option_data.Clear (); |
| 525 | } |
| 526 | |
| 527 | const char * |
| 528 | Driver::GetFilename() const |
| 529 | { |
| 530 | if (m_option_data.m_filename.empty()) |
| 531 | return NULL; |
| 532 | return m_option_data.m_filename.c_str(); |
| 533 | } |
| 534 | |
| 535 | const char * |
| 536 | Driver::GetCrashLogFilename() const |
| 537 | { |
| 538 | if (m_option_data.m_crash_log.empty()) |
| 539 | return NULL; |
| 540 | return m_option_data.m_crash_log.c_str(); |
| 541 | } |
| 542 | |
| 543 | lldb::ScriptLanguage |
| 544 | Driver::GetScriptLanguage() const |
| 545 | { |
| 546 | return m_option_data.m_script_lang; |
| 547 | } |
| 548 | |
| 549 | size_t |
| 550 | Driver::GetNumSourceCommandFiles () const |
| 551 | { |
| 552 | return m_option_data.m_source_command_files.size(); |
| 553 | } |
| 554 | |
| 555 | const char * |
| 556 | Driver::GetSourceCommandFileAtIndex (uint32_t idx) const |
| 557 | { |
| 558 | if (idx < m_option_data.m_source_command_files.size()) |
| 559 | return m_option_data.m_source_command_files[idx].c_str(); |
| 560 | return NULL; |
| 561 | } |
| 562 | |
| 563 | bool |
| 564 | Driver::GetDebugMode() const |
| 565 | { |
| 566 | return m_option_data.m_debug_mode; |
| 567 | } |
| 568 | |
| 569 | |
| 570 | // Check the arguments that were passed to this program to make sure they are valid and to get their |
| 571 | // argument values (if any). Return a boolean value indicating whether or not to start up the full |
| 572 | // debugger (i.e. the Command Interpreter) or not. Return FALSE if the arguments were invalid OR |
| 573 | // if the user only wanted help or version information. |
| 574 | |
| 575 | bool |
| 576 | Driver::ParseArgs (int argc, const char *argv[], FILE *out_fh, FILE *err_fh) |
| 577 | { |
| 578 | bool valid = true; |
| 579 | |
| 580 | ResetOptionValues (); |
| 581 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 582 | SBCommandReturnObject result; |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 583 | |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 584 | SBError error = ParseOptions (m_option_data, argc, argv); |
| 585 | if (error.Fail()) |
| 586 | { |
| 587 | const char *error_cstr = error.GetCString (); |
| 588 | if (error_cstr) |
| 589 | ::fprintf (err_fh, "error: %s\n", error_cstr); |
| 590 | valid = false; |
| 591 | } |
| 592 | |
| 593 | // If there is a trailing argument, it is the filename. |
| 594 | if (optind == argc - 1) |
| 595 | { |
| 596 | if (m_option_data.m_filename.empty()) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 597 | { |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 598 | m_option_data.m_filename = argv[optind]; |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 599 | } |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 600 | else |
| 601 | { |
| 602 | ::fprintf (err_fh, "error: don't provide a file both on in the -f option and as an argument."); |
| 603 | valid = false; |
| 604 | } |
| 605 | |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 606 | } |
Jim Ingham | 34e9a98 | 2010-06-15 18:47:14 +0000 | [diff] [blame] | 607 | else if (optind < argc - 1) |
| 608 | { |
| 609 | // Trailing extra arguments... |
| 610 | ::fprintf (err_fh, "error: trailing extra arguments - only one the filename is allowed."); |
| 611 | valid = false; |
| 612 | |
| 613 | } |
| 614 | |
| 615 | if (!valid || m_option_data.m_print_help) |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 616 | { |
| 617 | ShowUsage (out_fh, g_options, m_option_data); |
| 618 | valid = false; |
| 619 | } |
| 620 | else if (m_option_data.m_print_version) |
| 621 | { |
| 622 | ::fprintf (out_fh, "%s\n", SBDebugger::GetVersionString()); |
| 623 | valid = false; |
| 624 | } |
| 625 | else if (! m_option_data.m_crash_log.empty()) |
| 626 | { |
| 627 | // Handle crash log stuff here. |
| 628 | } |
| 629 | else |
| 630 | { |
| 631 | // All other combinations are valid; do nothing more here. |
| 632 | } |
| 633 | |
| 634 | return valid; |
| 635 | } |
| 636 | |
| 637 | void |
| 638 | Driver::GetProcessSTDOUT () |
| 639 | { |
| 640 | // The process has stuff waiting for stdout; get it and write it out to the appropriate place. |
| 641 | char stdio_buffer[1024]; |
| 642 | size_t len; |
| 643 | while ((len = SBDebugger::GetCurrentTarget().GetProcess().GetSTDOUT (stdio_buffer, sizeof (stdio_buffer))) > 0) |
| 644 | m_io_channel_ap->OutWrite (stdio_buffer, len); |
| 645 | } |
| 646 | |
| 647 | void |
| 648 | Driver::GetProcessSTDERR () |
| 649 | { |
| 650 | // The process has stuff waiting for stderr; get it and write it out to the appropriate place. |
| 651 | char stdio_buffer[1024]; |
| 652 | size_t len; |
| 653 | while ((len = SBDebugger::GetCurrentTarget().GetProcess().GetSTDERR (stdio_buffer, sizeof (stdio_buffer))) > 0) |
| 654 | m_io_channel_ap->ErrWrite (stdio_buffer, len); |
| 655 | } |
| 656 | |
| 657 | void |
| 658 | Driver::UpdateCurrentThread () |
| 659 | { |
| 660 | using namespace lldb; |
| 661 | SBProcess process(SBDebugger::GetCurrentTarget().GetProcess()); |
| 662 | if (process.IsValid()) |
| 663 | { |
| 664 | SBThread curr_thread (process.GetCurrentThread()); |
| 665 | SBThread thread; |
| 666 | StopReason curr_thread_stop_reason = eStopReasonInvalid; |
| 667 | curr_thread_stop_reason = curr_thread.GetStopReason(); |
| 668 | |
| 669 | if (!curr_thread.IsValid() || |
| 670 | curr_thread_stop_reason == eStopReasonInvalid || |
| 671 | curr_thread_stop_reason == eStopReasonNone) |
| 672 | { |
| 673 | // Prefer a thread that has just completed its plan over another thread as current thread. |
| 674 | SBThread plan_thread; |
| 675 | SBThread other_thread; |
| 676 | const size_t num_threads = process.GetNumThreads(); |
| 677 | size_t i; |
| 678 | for (i = 0; i < num_threads; ++i) |
| 679 | { |
| 680 | thread = process.GetThreadAtIndex(i); |
| 681 | StopReason thread_stop_reason = thread.GetStopReason(); |
| 682 | switch (thread_stop_reason) |
| 683 | { |
| 684 | default: |
| 685 | case eStopReasonInvalid: |
| 686 | case eStopReasonNone: |
| 687 | break; |
| 688 | |
| 689 | case eStopReasonTrace: |
| 690 | case eStopReasonBreakpoint: |
| 691 | case eStopReasonWatchpoint: |
| 692 | case eStopReasonSignal: |
| 693 | case eStopReasonException: |
| 694 | if (!other_thread.IsValid()) |
| 695 | other_thread = thread; |
| 696 | break; |
| 697 | case eStopReasonPlanComplete: |
| 698 | if (!plan_thread.IsValid()) |
| 699 | plan_thread = thread; |
| 700 | break; |
| 701 | } |
| 702 | } |
| 703 | if (plan_thread.IsValid()) |
| 704 | process.SetCurrentThread (plan_thread); |
| 705 | else if (other_thread.IsValid()) |
| 706 | process.SetCurrentThread (other_thread); |
| 707 | else |
| 708 | { |
| 709 | if (curr_thread.IsValid()) |
| 710 | thread = curr_thread; |
| 711 | else |
| 712 | thread = process.GetThreadAtIndex(0); |
| 713 | |
| 714 | if (thread.IsValid()) |
| 715 | process.SetCurrentThread (thread); |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | } |
| 720 | |
| 721 | |
| 722 | // This function handles events that were broadcast by the process. |
| 723 | void |
| 724 | Driver::HandleProcessEvent (const SBEvent &event) |
| 725 | { |
| 726 | using namespace lldb; |
| 727 | const uint32_t event_type = event.GetType(); |
| 728 | |
| 729 | if (event_type & SBProcess::eBroadcastBitSTDOUT) |
| 730 | { |
| 731 | // The process has stdout available, get it and write it out to the |
| 732 | // appropriate place. |
| 733 | GetProcessSTDOUT (); |
| 734 | } |
| 735 | else if (event_type & SBProcess::eBroadcastBitSTDERR) |
| 736 | { |
| 737 | // The process has stderr available, get it and write it out to the |
| 738 | // appropriate place. |
| 739 | GetProcessSTDERR (); |
| 740 | } |
| 741 | else if (event_type & SBProcess::eBroadcastBitStateChanged) |
| 742 | { |
| 743 | // Drain all stout and stderr so we don't see any output come after |
| 744 | // we print our prompts |
| 745 | GetProcessSTDOUT (); |
| 746 | GetProcessSTDERR (); |
| 747 | |
| 748 | // Something changed in the process; get the event and report the process's current status and location to |
| 749 | // the user. |
| 750 | StateType event_state = SBProcess::GetStateFromEvent (event); |
| 751 | if (event_state == eStateInvalid) |
| 752 | return; |
| 753 | |
| 754 | SBProcess process (SBProcess::GetProcessFromEvent (event)); |
| 755 | assert (process.IsValid()); |
| 756 | |
| 757 | switch (event_state) |
| 758 | { |
| 759 | case eStateInvalid: |
| 760 | case eStateUnloaded: |
| 761 | case eStateAttaching: |
| 762 | case eStateLaunching: |
| 763 | case eStateStepping: |
| 764 | case eStateDetached: |
| 765 | { |
| 766 | char message[1024]; |
| 767 | int message_len = ::snprintf (message, sizeof(message), "Process %d %s\n", process.GetProcessID(), |
| 768 | SBDebugger::StateAsCString (event_state)); |
| 769 | m_io_channel_ap->OutWrite(message, message_len); |
| 770 | } |
| 771 | break; |
| 772 | |
| 773 | case eStateRunning: |
| 774 | // Don't be chatty when we run... |
| 775 | break; |
| 776 | |
| 777 | case eStateExited: |
Jim Ingham | 41313fc | 2010-06-18 01:23:09 +0000 | [diff] [blame] | 778 | SBDebugger::HandleCommand("process status"); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 779 | m_io_channel_ap->RefreshPrompt(); |
| 780 | break; |
| 781 | |
| 782 | case eStateStopped: |
| 783 | case eStateCrashed: |
| 784 | case eStateSuspended: |
| 785 | // Make sure the program hasn't been auto-restarted: |
| 786 | if (SBProcess::GetRestartedFromEvent (event)) |
| 787 | { |
| 788 | // FIXME: Do we want to report this, or would that just be annoyingly chatty? |
| 789 | char message[1024]; |
| 790 | int message_len = ::snprintf (message, sizeof(message), "Process %d stopped and was programmatically restarted.\n", |
| 791 | process.GetProcessID()); |
| 792 | m_io_channel_ap->OutWrite(message, message_len); |
| 793 | } |
| 794 | else |
| 795 | { |
| 796 | UpdateCurrentThread (); |
Jim Ingham | 41313fc | 2010-06-18 01:23:09 +0000 | [diff] [blame] | 797 | SBDebugger::HandleCommand("process status"); |
Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame] | 798 | m_io_channel_ap->RefreshPrompt(); |
| 799 | } |
| 800 | break; |
| 801 | } |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | // This function handles events broadcast by the IOChannel (HasInput, UserInterrupt, or ThreadShouldExit). |
| 806 | |
| 807 | bool |
| 808 | Driver::HandleIOEvent (const SBEvent &event) |
| 809 | { |
| 810 | bool quit = false; |
| 811 | |
| 812 | const uint32_t event_type = event.GetType(); |
| 813 | |
| 814 | if (event_type & IOChannel::eBroadcastBitHasUserInput) |
| 815 | { |
| 816 | // We got some input (i.e. a command string) from the user; pass it off to the command interpreter for |
| 817 | // handling. |
| 818 | |
| 819 | const char *command_string = SBEvent::GetCStringFromEvent(event); |
| 820 | if (command_string == NULL) |
| 821 | command_string == ""; |
| 822 | SBCommandReturnObject result; |
| 823 | if (SBDebugger::GetCommandInterpreter().HandleCommand (command_string, result, true) != lldb::eReturnStatusQuit) |
| 824 | { |
| 825 | m_io_channel_ap->ErrWrite (result.GetError(), result.GetErrorSize()); |
| 826 | m_io_channel_ap->OutWrite (result.GetOutput(), result.GetOutputSize()); |
| 827 | } |
| 828 | // We are done getting and running our command, we can now clear the |
| 829 | // m_waiting_for_command so we can get another one. |
| 830 | m_waiting_for_command = false; |
| 831 | |
| 832 | // If our editline input reader is active, it means another input reader |
| 833 | // got pushed onto the input reader and caused us to become deactivated. |
| 834 | // When the input reader above us gets popped, we will get re-activated |
| 835 | // and our prompt will refresh in our callback |
| 836 | if (m_editline_reader.IsActive()) |
| 837 | { |
| 838 | ReadyForCommand (); |
| 839 | } |
| 840 | } |
| 841 | else if (event_type & IOChannel::eBroadcastBitUserInterrupt) |
| 842 | { |
| 843 | // This is here to handle control-c interrupts from the user. It has not yet really been implemented. |
| 844 | // TO BE DONE: PROPERLY HANDLE CONTROL-C FROM USER |
| 845 | //m_io_channel_ap->CancelInput(); |
| 846 | // Anything else? Send Interrupt to process? |
| 847 | } |
| 848 | else if ((event_type & IOChannel::eBroadcastBitThreadShouldExit) || |
| 849 | (event_type & IOChannel::eBroadcastBitThreadDidExit)) |
| 850 | { |
| 851 | // If the IOChannel thread is trying to go away, then it is definitely |
| 852 | // time to end the debugging session. |
| 853 | quit = true; |
| 854 | } |
| 855 | |
| 856 | return quit; |
| 857 | } |
| 858 | |
| 859 | |
| 860 | //struct CrashImageInfo |
| 861 | //{ |
| 862 | // std::string path; |
| 863 | // VMRange text_range; |
| 864 | // UUID uuid; |
| 865 | //}; |
| 866 | // |
| 867 | //void |
| 868 | //Driver::ParseCrashLog (const char *crash_log) |
| 869 | //{ |
| 870 | // printf("Parsing crash log: %s\n", crash_log); |
| 871 | // |
| 872 | // char image_path[PATH_MAX]; |
| 873 | // std::vector<CrashImageInfo> crash_infos; |
| 874 | // if (crash_log && crash_log[0]) |
| 875 | // { |
| 876 | // FileSpec crash_log_file (crash_log); |
| 877 | // STLStringArray crash_log_lines; |
| 878 | // if (crash_log_file.ReadFileLines (crash_log_lines)) |
| 879 | // { |
| 880 | // const size_t num_crash_log_lines = crash_log_lines.size(); |
| 881 | // size_t i; |
| 882 | // for (i=0; i<num_crash_log_lines; ++i) |
| 883 | // { |
| 884 | // const char *line = crash_log_lines[i].c_str(); |
| 885 | // if (strstr (line, "Code Type:")) |
| 886 | // { |
| 887 | // char arch_string[256]; |
| 888 | // if (sscanf(line, "%s", arch_string)) |
| 889 | // { |
| 890 | // if (strcmp(arch_string, "X86-64")) |
| 891 | // lldb::GetDefaultArchitecture ().SetArch ("x86_64"); |
| 892 | // else if (strcmp(arch_string, "X86")) |
| 893 | // lldb::GetDefaultArchitecture ().SetArch ("i386"); |
| 894 | // else |
| 895 | // { |
| 896 | // ArchSpec arch(arch_string); |
| 897 | // if (arch.IsValid ()) |
| 898 | // lldb::GetDefaultArchitecture () = arch; |
| 899 | // else |
| 900 | // fprintf(stderr, "Unrecognized architecture: %s\n", arch_string); |
| 901 | // } |
| 902 | // } |
| 903 | // } |
| 904 | // else |
| 905 | // if (strstr(line, "Path:")) |
| 906 | // { |
| 907 | // const char *p = line + strlen("Path:"); |
| 908 | // while (isspace(*p)) |
| 909 | // ++p; |
| 910 | // |
| 911 | // m_option_data.m_filename.assign (p); |
| 912 | // } |
| 913 | // else |
| 914 | // if (strstr(line, "Binary Images:")) |
| 915 | // { |
| 916 | // while (++i < num_crash_log_lines) |
| 917 | // { |
| 918 | // if (crash_log_lines[i].empty()) |
| 919 | // break; |
| 920 | // |
| 921 | // line = crash_log_lines[i].c_str(); |
| 922 | // uint64_t text_start_addr; |
| 923 | // uint64_t text_end_addr; |
| 924 | // char uuid_cstr[64]; |
| 925 | // int bytes_consumed_before_uuid = 0; |
| 926 | // int bytes_consumed_after_uuid = 0; |
| 927 | // |
| 928 | // int items_parsed = ::sscanf (line, |
| 929 | // "%llx - %llx %*s %*s %*s %n%s %n", |
| 930 | // &text_start_addr, |
| 931 | // &text_end_addr, |
| 932 | // &bytes_consumed_before_uuid, |
| 933 | // uuid_cstr, |
| 934 | // &bytes_consumed_after_uuid); |
| 935 | // |
| 936 | // if (items_parsed == 3) |
| 937 | // { |
| 938 | // |
| 939 | // CrashImageInfo info; |
| 940 | // info.text_range.SetBaseAddress(text_start_addr); |
| 941 | // info.text_range.SetEndAddress(text_end_addr); |
| 942 | // |
| 943 | // if (uuid_cstr[0] == '<') |
| 944 | // { |
| 945 | // if (info.uuid.SetfromCString (&uuid_cstr[1]) == 0) |
| 946 | // info.uuid.Clear(); |
| 947 | // |
| 948 | // ::strncpy (image_path, line + bytes_consumed_after_uuid, sizeof(image_path)); |
| 949 | // } |
| 950 | // else |
| 951 | // { |
| 952 | // ::strncpy (image_path, line + bytes_consumed_before_uuid, sizeof(image_path)); |
| 953 | // } |
| 954 | // |
| 955 | // info.path = image_path; |
| 956 | // |
| 957 | // crash_infos.push_back (info); |
| 958 | // |
| 959 | // info.uuid.GetAsCString(uuid_cstr, sizeof(uuid_cstr)); |
| 960 | // |
| 961 | // printf("0x%16.16llx - 0x%16.16llx <%s> %s\n", |
| 962 | // text_start_addr, |
| 963 | // text_end_addr, |
| 964 | // uuid_cstr, |
| 965 | // image_path); |
| 966 | // } |
| 967 | // } |
| 968 | // } |
| 969 | // } |
| 970 | // } |
| 971 | // |
| 972 | // if (crash_infos.size()) |
| 973 | // { |
| 974 | // SBTarget target (SBDebugger::CreateTarget (crash_infos.front().path.c_str(), |
| 975 | // lldb::GetDefaultArchitecture().AsCString (), |
| 976 | // false)); |
| 977 | // if (target.IsValid()) |
| 978 | // { |
| 979 | // |
| 980 | // } |
| 981 | // } |
| 982 | // } |
| 983 | //} |
| 984 | // |
| 985 | |
| 986 | void |
| 987 | Driver::MasterThreadBytesReceived (void *baton, const void *src, size_t src_len) |
| 988 | { |
| 989 | Driver *driver = (Driver*)baton; |
| 990 | driver->GetFromMaster ((const char *)src, src_len); |
| 991 | } |
| 992 | |
| 993 | void |
| 994 | Driver::GetFromMaster (const char *src, size_t src_len) |
| 995 | { |
| 996 | // Echo the characters back to the Debugger's stdout, that way if you |
| 997 | // type characters while a command is running, you'll see what you've typed. |
| 998 | FILE *out_fh = SBDebugger::GetOutputFileHandle(); |
| 999 | if (out_fh) |
| 1000 | ::fwrite (src, 1, src_len, out_fh); |
| 1001 | } |
| 1002 | |
| 1003 | size_t |
| 1004 | Driver::EditLineInputReaderCallback |
| 1005 | ( |
| 1006 | void *baton, |
| 1007 | SBInputReader *reader, |
| 1008 | InputReaderAction notification, |
| 1009 | const char *bytes, |
| 1010 | size_t bytes_len |
| 1011 | ) |
| 1012 | { |
| 1013 | Driver *driver = (Driver *)baton; |
| 1014 | |
| 1015 | switch (notification) |
| 1016 | { |
| 1017 | case eInputReaderActivate: |
| 1018 | break; |
| 1019 | |
| 1020 | case eInputReaderReactivate: |
| 1021 | driver->ReadyForCommand(); |
| 1022 | break; |
| 1023 | |
| 1024 | case eInputReaderDeactivate: |
| 1025 | break; |
| 1026 | |
| 1027 | case eInputReaderGotToken: |
| 1028 | write (driver->m_editline_pty.GetMasterFileDescriptor(), bytes, bytes_len); |
| 1029 | break; |
| 1030 | |
| 1031 | case eInputReaderDone: |
| 1032 | break; |
| 1033 | } |
| 1034 | return bytes_len; |
| 1035 | } |
| 1036 | |
| 1037 | void |
| 1038 | Driver::MainLoop () |
| 1039 | { |
| 1040 | char error_str[1024]; |
| 1041 | if (m_editline_pty.OpenFirstAvailableMaster(O_RDWR|O_NOCTTY, error_str, sizeof(error_str)) == false) |
| 1042 | { |
| 1043 | ::fprintf (stderr, "error: failed to open driver pseudo terminal : %s", error_str); |
| 1044 | exit(1); |
| 1045 | } |
| 1046 | else |
| 1047 | { |
| 1048 | const char *driver_slave_name = m_editline_pty.GetSlaveName (error_str, sizeof(error_str)); |
| 1049 | if (driver_slave_name == NULL) |
| 1050 | { |
| 1051 | ::fprintf (stderr, "error: failed to get slave name for driver pseudo terminal : %s", error_str); |
| 1052 | exit(2); |
| 1053 | } |
| 1054 | else |
| 1055 | { |
| 1056 | m_editline_slave_fh = ::fopen (driver_slave_name, "r+"); |
| 1057 | if (m_editline_slave_fh == NULL) |
| 1058 | { |
| 1059 | SBError error; |
| 1060 | error.SetErrorToErrno(); |
| 1061 | ::fprintf (stderr, "error: failed to get open slave for driver pseudo terminal : %s", |
| 1062 | error.GetCString()); |
| 1063 | exit(3); |
| 1064 | } |
| 1065 | |
| 1066 | ::setbuf (m_editline_slave_fh, NULL); |
| 1067 | } |
| 1068 | } |
| 1069 | |
| 1070 | |
| 1071 | // struct termios stdin_termios; |
| 1072 | |
| 1073 | if (::tcgetattr(STDIN_FILENO, &g_old_stdin_termios) == 0) |
| 1074 | atexit (reset_stdin_termios); |
| 1075 | |
| 1076 | ::setbuf (stdin, NULL); |
| 1077 | ::setbuf (stdout, NULL); |
| 1078 | |
| 1079 | SBDebugger::SetErrorFileHandle (stderr, false); |
| 1080 | SBDebugger::SetOutputFileHandle (stdout, false); |
| 1081 | SBDebugger::SetInputFileHandle (stdin, true); |
| 1082 | |
| 1083 | // You have to drain anything that comes to the master side of the PTY. master_out_comm is |
| 1084 | // for that purpose. The reason you need to do this is a curious reason... editline will echo |
| 1085 | // characters to the PTY when it gets characters while el_gets is not running, and then when |
| 1086 | // you call el_gets (or el_getc) it will try to reset the terminal back to raw mode which blocks |
| 1087 | // if there are unconsumed characters in the out buffer. |
| 1088 | // However, you don't need to do anything with the characters, since editline will dump these |
| 1089 | // unconsumed characters after printing the prompt again in el_gets. |
| 1090 | |
| 1091 | SBCommunication master_out_comm("driver.editline"); |
| 1092 | master_out_comm.AdoptFileDesriptor(m_editline_pty.GetMasterFileDescriptor(), false); |
| 1093 | master_out_comm.SetReadThreadBytesReceivedCallback(Driver::MasterThreadBytesReceived, this); |
| 1094 | |
| 1095 | if (master_out_comm.ReadThreadStart () == false) |
| 1096 | { |
| 1097 | ::fprintf (stderr, "error: failed to start master out read thread"); |
| 1098 | exit(5); |
| 1099 | } |
| 1100 | |
| 1101 | // const char *crash_log = GetCrashLogFilename(); |
| 1102 | // if (crash_log) |
| 1103 | // { |
| 1104 | // ParseCrashLog (crash_log); |
| 1105 | // } |
| 1106 | // |
| 1107 | SBCommandInterpreter sb_interpreter = SBDebugger::GetCommandInterpreter(); |
| 1108 | |
| 1109 | m_io_channel_ap.reset (new IOChannel(m_editline_slave_fh, stdout, stderr, this)); |
| 1110 | |
| 1111 | struct winsize window_size; |
| 1112 | if (isatty (STDIN_FILENO) |
| 1113 | && ::ioctl (STDIN_FILENO, TIOCGWINSZ, &window_size) == 0) |
| 1114 | { |
| 1115 | char buffer[25]; |
| 1116 | |
| 1117 | sprintf (buffer, "set term-width %d", window_size.ws_col); |
| 1118 | SBDebugger::HandleCommand ((const char *) buffer); |
| 1119 | } |
| 1120 | |
| 1121 | // Since input can be redirected by the debugger, we must insert our editline |
| 1122 | // input reader in the queue so we know when our reader should be active |
| 1123 | // and so we can receive bytes only when we are supposed to. |
| 1124 | SBError err (m_editline_reader.Initialize (Driver::EditLineInputReaderCallback, // callback |
| 1125 | this, // baton |
| 1126 | eInputReaderGranularityByte, // token_size |
| 1127 | NULL, // end token - NULL means never done |
| 1128 | NULL, // prompt - taken care of elsewhere |
| 1129 | false)); // echo input - don't need Debugger |
| 1130 | // to do this, we handle it elsewhere |
| 1131 | |
| 1132 | if (err.Fail()) |
| 1133 | { |
| 1134 | ::fprintf (stderr, "error: %s", err.GetCString()); |
| 1135 | exit (6); |
| 1136 | } |
| 1137 | |
| 1138 | SBDebugger::PushInputReader (m_editline_reader); |
| 1139 | |
| 1140 | SBListener listener(SBDebugger::GetListener()); |
| 1141 | if (listener.IsValid()) |
| 1142 | { |
| 1143 | |
| 1144 | listener.StartListeningForEvents (*m_io_channel_ap, |
| 1145 | IOChannel::eBroadcastBitHasUserInput | |
| 1146 | IOChannel::eBroadcastBitUserInterrupt | |
| 1147 | IOChannel::eBroadcastBitThreadShouldExit | |
| 1148 | IOChannel::eBroadcastBitThreadDidStart | |
| 1149 | IOChannel::eBroadcastBitThreadDidExit); |
| 1150 | |
| 1151 | if (m_io_channel_ap->Start ()) |
| 1152 | { |
| 1153 | bool iochannel_thread_exited = false; |
| 1154 | |
| 1155 | listener.StartListeningForEvents (sb_interpreter.GetBroadcaster(), |
| 1156 | SBCommandInterpreter::eBroadcastBitQuitCommandReceived); |
| 1157 | |
| 1158 | // Before we handle any options from the command line, we parse the |
| 1159 | // .lldbinit file in the user's home directory. |
| 1160 | SBCommandReturnObject result; |
| 1161 | sb_interpreter.SourceInitFileInHomeDirectory(result); |
| 1162 | if (GetDebugMode()) |
| 1163 | { |
| 1164 | result.PutError (SBDebugger::GetErrorFileHandle()); |
| 1165 | result.PutOutput (SBDebugger::GetOutputFileHandle()); |
| 1166 | } |
| 1167 | |
| 1168 | // Now we handle options we got from the command line |
| 1169 | char command_string[PATH_MAX * 2]; |
| 1170 | const size_t num_source_command_files = GetNumSourceCommandFiles(); |
| 1171 | if (num_source_command_files > 0) |
| 1172 | { |
| 1173 | for (size_t i=0; i < num_source_command_files; ++i) |
| 1174 | { |
| 1175 | const char *command_file = GetSourceCommandFileAtIndex(i); |
| 1176 | ::snprintf (command_string, sizeof(command_string), "source '%s'", command_file); |
| 1177 | SBDebugger::GetCommandInterpreter().HandleCommand (command_string, result, false); |
| 1178 | if (GetDebugMode()) |
| 1179 | { |
| 1180 | result.PutError (SBDebugger::GetErrorFileHandle()); |
| 1181 | result.PutOutput (SBDebugger::GetOutputFileHandle()); |
| 1182 | } |
| 1183 | } |
| 1184 | } |
| 1185 | |
| 1186 | if (!m_option_data.m_filename.empty()) |
| 1187 | { |
| 1188 | char arch_name[64]; |
| 1189 | if (SBDebugger::GetDefaultArchitecture (arch_name, sizeof (arch_name))) |
| 1190 | ::snprintf (command_string, sizeof (command_string), "file --arch=%s '%s'", arch_name, |
| 1191 | m_option_data.m_filename.c_str()); |
| 1192 | else |
| 1193 | ::snprintf (command_string, sizeof(command_string), "file '%s'", m_option_data.m_filename.c_str()); |
| 1194 | |
| 1195 | SBDebugger::HandleCommand (command_string); |
| 1196 | } |
| 1197 | |
| 1198 | // Now that all option parsing is done, we try and parse the .lldbinit |
| 1199 | // file in the current working directory |
| 1200 | sb_interpreter.SourceInitFileInCurrentWorkingDirectory (result); |
| 1201 | if (GetDebugMode()) |
| 1202 | { |
| 1203 | result.PutError(SBDebugger::GetErrorFileHandle()); |
| 1204 | result.PutOutput(SBDebugger::GetOutputFileHandle()); |
| 1205 | } |
| 1206 | |
| 1207 | SBEvent event; |
| 1208 | |
| 1209 | // Make sure the IO channel is started up before we try to tell it we |
| 1210 | // are ready for input |
| 1211 | listener.WaitForEventForBroadcasterWithType (UINT32_MAX, |
| 1212 | *m_io_channel_ap, |
| 1213 | IOChannel::eBroadcastBitThreadDidStart, |
| 1214 | event); |
| 1215 | |
| 1216 | ReadyForCommand (); |
| 1217 | |
| 1218 | bool done = false; |
| 1219 | while (!done) |
| 1220 | { |
| 1221 | listener.WaitForEvent (UINT32_MAX, event); |
| 1222 | if (event.IsValid()) |
| 1223 | { |
| 1224 | if (event.GetBroadcaster().IsValid()) |
| 1225 | { |
| 1226 | uint32_t event_type = event.GetType(); |
| 1227 | if (event.BroadcasterMatchesRef (*m_io_channel_ap)) |
| 1228 | { |
| 1229 | if ((event_type & IOChannel::eBroadcastBitThreadShouldExit) || |
| 1230 | (event_type & IOChannel::eBroadcastBitThreadDidExit)) |
| 1231 | { |
| 1232 | done = true; |
| 1233 | if (event_type & IOChannel::eBroadcastBitThreadDidExit) |
| 1234 | iochannel_thread_exited = true; |
| 1235 | break; |
| 1236 | } |
| 1237 | else |
| 1238 | done = HandleIOEvent (event); |
| 1239 | } |
| 1240 | else if (event.BroadcasterMatchesRef (SBDebugger::GetCurrentTarget().GetProcess().GetBroadcaster())) |
| 1241 | { |
| 1242 | HandleProcessEvent (event); |
| 1243 | } |
| 1244 | else if (event.BroadcasterMatchesRef (sb_interpreter.GetBroadcaster())) |
| 1245 | { |
| 1246 | if (event_type & SBCommandInterpreter::eBroadcastBitQuitCommandReceived) |
| 1247 | done = true; |
| 1248 | } |
| 1249 | } |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | reset_stdin_termios (); |
| 1254 | |
| 1255 | CloseIOChannelFile (); |
| 1256 | |
| 1257 | if (!iochannel_thread_exited) |
| 1258 | { |
| 1259 | SBEvent event; |
| 1260 | listener.GetNextEventForBroadcasterWithType (*m_io_channel_ap, |
| 1261 | IOChannel::eBroadcastBitThreadDidExit, |
| 1262 | event); |
| 1263 | if (!event.IsValid()) |
| 1264 | { |
| 1265 | // Send end EOF to the driver file descriptor |
| 1266 | m_io_channel_ap->Stop(); |
| 1267 | } |
| 1268 | } |
| 1269 | |
| 1270 | SBProcess process = SBDebugger::GetCurrentTarget().GetProcess(); |
| 1271 | if (process.IsValid()) |
| 1272 | process.Destroy(); |
| 1273 | } |
| 1274 | } |
| 1275 | } |
| 1276 | |
| 1277 | |
| 1278 | void |
| 1279 | Driver::ReadyForCommand () |
| 1280 | { |
| 1281 | if (m_waiting_for_command == false) |
| 1282 | { |
| 1283 | m_waiting_for_command = true; |
| 1284 | BroadcastEventByType (Driver::eBroadcastBitReadyForInput, true); |
| 1285 | } |
| 1286 | } |
| 1287 | |
| 1288 | |
| 1289 | int |
| 1290 | main (int argc, char const *argv[]) |
| 1291 | { |
| 1292 | |
| 1293 | SBDebugger::Initialize(); |
| 1294 | |
| 1295 | SBHostOS::ThreadCreated ("[main]"); |
| 1296 | |
| 1297 | // Do a little setup on the debugger before we get going |
| 1298 | SBDebugger::SetAsync(true); |
| 1299 | Driver driver; |
| 1300 | |
| 1301 | bool valid_args = driver.ParseArgs (argc, argv, stdout, stderr); |
| 1302 | if (valid_args) |
| 1303 | { |
| 1304 | driver.MainLoop (); |
| 1305 | } |
| 1306 | |
| 1307 | SBDebugger::Terminate(); |
| 1308 | return 0; |
| 1309 | } |