| 1 | # Copyright 1988-2015 Free Software Foundation, Inc. |
| 2 | |
| 3 | # This program is free software; you can redistribute it and/or modify |
| 4 | # it under the terms of the GNU General Public License as published by |
| 5 | # the Free Software Foundation; either version 3 of the License, or |
| 6 | # (at your option) any later version. |
| 7 | # |
| 8 | # This program is distributed in the hope that it will be useful, |
| 9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | # GNU General Public License for more details. |
| 12 | # |
| 13 | # You should have received a copy of the GNU General Public License |
| 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | |
| 16 | # This file was written by Rob Savoye. (rob@cygnus.com) |
| 17 | |
| 18 | load_lib selftest-support.exp |
| 19 | |
| 20 | # are we on a target board |
| 21 | if { [is_remote target] || ![isnative] } then { |
| 22 | return |
| 23 | } |
| 24 | |
| 25 | # Not all of the lines of code near the start of main are executed for |
| 26 | # every machine. Also, optimization may reorder some of the lines. |
| 27 | # So all we do is try to step or next over everything until we get |
| 28 | # to a line that we know is always executed. |
| 29 | |
| 30 | proc do_steps_and_nexts {} { |
| 31 | global gdb_prompt |
| 32 | global srcdir |
| 33 | |
| 34 | gdb_reinitialize_dir $srcdir/.. |
| 35 | |
| 36 | set unlikely_line 0 |
| 37 | for {set count 0} {$count < 32} {incr count} { |
| 38 | # NOTE: carlton/2002-12-11: The "initial brace" and |
| 39 | # "current_directory initialization" possibilities happen to |
| 40 | # me with GCC 3.1 on i686-pc-linux-gnu when I compile with |
| 41 | # optimization. |
| 42 | gdb_test_multiple "list" "list" { |
| 43 | -re ".*context = data.*$gdb_prompt $" { |
| 44 | set description "step over context initialization" |
| 45 | set command "step" |
| 46 | } |
| 47 | -re ".*argc = context->argc.*$gdb_prompt $" { |
| 48 | set description "step over argc initialization" |
| 49 | set command "step" |
| 50 | } |
| 51 | -re ".*argv = context->argv.*$gdb_prompt $" { |
| 52 | set description "step over argv initialization" |
| 53 | set command "step" |
| 54 | } |
| 55 | -re ".*quiet = 0.*$gdb_prompt $" { |
| 56 | set description "step over quiet initialization" |
| 57 | set command "step" |
| 58 | } |
| 59 | -re ".*batch = 0.*$gdb_prompt $" { |
| 60 | set description "step over batch initialization" |
| 61 | set command "step" |
| 62 | } |
| 63 | -re ".*symarg = NULL.*$gdb_prompt $" { |
| 64 | set description "step over symarg initialization" |
| 65 | set command "step" |
| 66 | } |
| 67 | -re ".*execarg = NULL.*$gdb_prompt $" { |
| 68 | set description "step over execarg initialization" |
| 69 | set command "step" |
| 70 | } |
| 71 | -re ".*pidarg = NULL.*$gdb_prompt $" { |
| 72 | set description "step over pidarg initialization" |
| 73 | set command "step" |
| 74 | } |
| 75 | -re ".*corearg = NULL.*$gdb_prompt $" { |
| 76 | set description "step over corearg initialization" |
| 77 | set command "step" |
| 78 | } |
| 79 | -re ".*pid_or_core_arg = NULL.*$gdb_prompt $" { |
| 80 | set description "step over pid_or_core_arg initialization" |
| 81 | set command "step" |
| 82 | } |
| 83 | -re ".*cdarg = NULL.*$gdb_prompt $" { |
| 84 | set description "step over cdarg initialization" |
| 85 | set command "step" |
| 86 | } |
| 87 | -re ".*ttyarg = NULL.*$gdb_prompt $" { |
| 88 | set description "step over ttyarg initialization" |
| 89 | set command "step" |
| 90 | } |
| 91 | -re ".*cmdarg_vec = NULL.*$gdb_prompt $" { |
| 92 | set description "step over cmdarg_vec initialization" |
| 93 | set command "step" |
| 94 | } |
| 95 | -re ".*pre_stat_chain = make_command_stats_cleanup.*$gdb_prompt $" { |
| 96 | set description "next over make_command_stats_cleanup and everything it calls" |
| 97 | set command "next" |
| 98 | } |
| 99 | -re ".*START_PROGRESS.*$gdb_prompt $" { |
| 100 | # Note: ezannoni/2004/02/17: This check should be |
| 101 | # removed, since as of today that source line is not |
| 102 | # in gdb anymore. |
| 103 | set description "next over START_PROGRESS and everything it calls" |
| 104 | set command "next" |
| 105 | } |
| 106 | -re ".*mac_init.*$gdb_prompt $" { |
| 107 | set description "next over mac_init and everything it calls" |
| 108 | set command "next" |
| 109 | } |
| 110 | -re ".*init_malloc.*$gdb_prompt $" { |
| 111 | # gdb 6.2.X is the last gdb which called init_malloc |
| 112 | set description "next over init_malloc and everything it calls" |
| 113 | set command "next" |
| 114 | } |
| 115 | -re ".*lim_at_start.*$gdb_prompt $" { |
| 116 | set description "next over lim_at_start initialization" |
| 117 | set command "next" |
| 118 | } |
| 119 | -re ".*count . 0x3.*$gdb_prompt $" { |
| 120 | set description "next over conditional stack alignment code 1" |
| 121 | set command "next" |
| 122 | } |
| 123 | -re ".*if .i != 0.*$gdb_prompt $" { |
| 124 | set description "next over conditional stack alignment code 2" |
| 125 | set command "next" |
| 126 | } |
| 127 | -re ".*alloca .i - 4.*$gdb_prompt $" { |
| 128 | set description "next over conditional stack alignment alloca" |
| 129 | set command "next" |
| 130 | } |
| 131 | -re ".*dirsize = 1.*$gdb_prompt $" { |
| 132 | set description "next over dirsize initialization" |
| 133 | set command "next" |
| 134 | } |
| 135 | -re ".*dirarg = .* xmalloc.*$gdb_prompt $" { |
| 136 | return |
| 137 | } |
| 138 | -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" { |
| 139 | set description "next over setlocale LC_MESSAGES" |
| 140 | set command "next" |
| 141 | } |
| 142 | -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" { |
| 143 | set description "next over setlocale LC_CTYPE" |
| 144 | set command "next" |
| 145 | } |
| 146 | -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" { |
| 147 | set description "next over bindtextdomain" |
| 148 | set command "next" |
| 149 | } |
| 150 | -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" { |
| 151 | set description "next over textdomain PACKAGE" |
| 152 | set command "next" |
| 153 | } |
| 154 | -re ".*bfd_init ..;.*$gdb_prompt $" { |
| 155 | set description "next over bfd_init" |
| 156 | set command "next" |
| 157 | } |
| 158 | -re ".*notice_open_fds ..;.*$gdb_prompt $" { |
| 159 | set description "next over notice_open_fds" |
| 160 | set command "next" |
| 161 | } |
| 162 | -re ".*VEC_cleanup .cmdarg_s.*$gdb_prompt $" { |
| 163 | set description "next over cmdarg_s VEC_cleanup" |
| 164 | set command "next" |
| 165 | } |
| 166 | -re "\[0-9\]+\[\t \]+\{\r\n$gdb_prompt $" { |
| 167 | set description "step over initial brace" |
| 168 | set command "step" |
| 169 | } |
| 170 | -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" { |
| 171 | set description "step over current_directory initialization" |
| 172 | set command "step" |
| 173 | } |
| 174 | -re ".*gdb_sysroot = .*$gdb_prompt $" { |
| 175 | # NOTE: carlton/2003-01-15: More optimization reordering, |
| 176 | # observed on GCC 3.1. |
| 177 | set description "step over gdb_sysroot initialization" |
| 178 | set command "step" |
| 179 | } |
| 180 | -re ".*ndir = 0.*$gdb_prompt $" { |
| 181 | set description "step over ndir initialization" |
| 182 | set command "step" |
| 183 | } |
| 184 | -re ".*instream = stdin.*$gdb_prompt $" { |
| 185 | set description "step over instream initialization" |
| 186 | set command "step" |
| 187 | } |
| 188 | -re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf.*$gdb_prompt $" { |
| 189 | set description "next over getcwd" |
| 190 | set command "next" |
| 191 | } |
| 192 | -re ".*gdb_program_name = xstrdup.*$gdb_prompt $" { |
| 193 | set description "next over xstrdup" |
| 194 | set command "next" |
| 195 | } |
| 196 | -re ".*quit_flag = 0.*$gdb_prompt $" { |
| 197 | set description "step over quit_flag initialization" |
| 198 | set command "step" |
| 199 | } |
| 200 | -re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" { |
| 201 | set description "step over gdb_stdout initialization" |
| 202 | set command "step" |
| 203 | } |
| 204 | -re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" { |
| 205 | set description "step over gdb_stderr initialization" |
| 206 | set command "step" |
| 207 | } |
| 208 | -re ".*main.c.*No such file or directory.*$gdb_prompt $" { |
| 209 | setup_xfail "rs6000-*-aix3*" |
| 210 | fail "must be able to list source lines" |
| 211 | return |
| 212 | } |
| 213 | -re ".*interpreter_p = xstrdup.*$gdb_prompt $" { |
| 214 | if { $unlikely_line == 0 } { |
| 215 | # This is a GCC optimization bug; a constant has been |
| 216 | # associated with the wrong line number. |
| 217 | setup_xfail "*-*-*" gcc/26475 |
| 218 | fail "$description (unlikely line from gcc)" |
| 219 | set unlikely_line 1 |
| 220 | } |
| 221 | set description "next over xstrdup" |
| 222 | set command "next" |
| 223 | } |
| 224 | -re ".*$gdb_prompt $" { |
| 225 | # If $description hasn't been set yet, it's likely the file |
| 226 | # has been edited but gdb hasn't been recompiled. |
| 227 | if [info exists description] { |
| 228 | fail "unknown source line (after $description)" |
| 229 | } else { |
| 230 | fail "unknown source line" |
| 231 | } |
| 232 | return |
| 233 | } |
| 234 | default { |
| 235 | fail "unknown source line near main" |
| 236 | return |
| 237 | } |
| 238 | } |
| 239 | gdb_test_multiple "$command" "$description" { |
| 240 | -re ".*No such file or directory.\r\n$gdb_prompt $" { |
| 241 | fail "$description (no source available)" |
| 242 | } |
| 243 | -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" { |
| 244 | fail "$description (no source available)" |
| 245 | } |
| 246 | -re ".*$gdb_prompt $" { |
| 247 | pass "$description" |
| 248 | } |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | proc test_with_self { executable } { |
| 254 | global gdb_prompt |
| 255 | global tool |
| 256 | global det_file |
| 257 | global decimal |
| 258 | global timeout |
| 259 | global INTERNAL_GDBFLAGS |
| 260 | |
| 261 | # load yourself into the debugger |
| 262 | # This can take a relatively long time, particularly for testing where |
| 263 | # the executable is being accessed over a network, or where gdb does not |
| 264 | # support partial symbols for a particular target and has to load the |
| 265 | # entire symbol table. Set the timeout to 10 minutes, which should be |
| 266 | # adequate for most environments (it *has* timed out with 5 min on a |
| 267 | # SPARCstation SLC under moderate load, so this isn't unreasonable). |
| 268 | # After gdb is started, set the timeout to 30 seconds for the duration |
| 269 | # of this test, and then back to the original value. |
| 270 | |
| 271 | set oldtimeout $timeout |
| 272 | set timeout 600 |
| 273 | verbose "Timeout is now $timeout seconds" 2 |
| 274 | |
| 275 | global gdb_file_cmd_debug_info |
| 276 | set gdb_file_cmd_debug_info "unset" |
| 277 | |
| 278 | set result [gdb_load $executable] |
| 279 | set timeout $oldtimeout |
| 280 | verbose "Timeout is now $timeout seconds" 2 |
| 281 | |
| 282 | if { $result != 0 } then { |
| 283 | return -1 |
| 284 | } |
| 285 | |
| 286 | if { $gdb_file_cmd_debug_info != "debug" } then { |
| 287 | untested "No debug information, skipping testcase." |
| 288 | return -1 |
| 289 | } |
| 290 | |
| 291 | # When GDB is built as a C++ program, disassemble shows the full |
| 292 | # prototype. |
| 293 | set cxx_main_args_re [string_to_regexp "(int, char**)"] |
| 294 | |
| 295 | # disassemble yourself |
| 296 | gdb_test "x/10i main" \ |
| 297 | "x/10i.*main.*main($cxx_main_args_re)?.$decimal.*main($cxx_main_args_re)?.$decimal.*" \ |
| 298 | "Disassemble main" |
| 299 | |
| 300 | # Set a breakpoint at main |
| 301 | gdb_test "break captured_main" \ |
| 302 | "Breakpoint.*at.* file.*, line.*" \ |
| 303 | "breakpoint in captured_main" |
| 304 | |
| 305 | # We'll need this when we send a ^C to GDB. Need to do it before we |
| 306 | # run the program and gdb starts saving and restoring tty states. |
| 307 | gdb_test "shell stty intr '^C'" ".*" \ |
| 308 | "set interrupt character in test_with_self" |
| 309 | |
| 310 | # FIXME: If we put this after the run to main, the first list |
| 311 | # command doesn't print the same line as the current line where |
| 312 | # gdb is stopped. |
| 313 | gdb_test_no_output "set listsize 1" "set listsize to 1" |
| 314 | |
| 315 | # run yourself |
| 316 | # It may take a very long time for the inferior gdb to start (lynx), |
| 317 | # so we bump it back up for the duration of this command. |
| 318 | set timeout 600 |
| 319 | |
| 320 | set description "run until breakpoint at captured_main" |
| 321 | gdb_test_multiple "run $INTERNAL_GDBFLAGS" "$description" { |
| 322 | -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" { |
| 323 | pass "$description" |
| 324 | } |
| 325 | -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" { |
| 326 | xfail "$description (line numbers scrambled?)" |
| 327 | } |
| 328 | -re "vfork: No more processes.*$gdb_prompt $" { |
| 329 | fail "$description (out of virtual memory)" |
| 330 | set timeout $oldtimeout |
| 331 | verbose "Timeout is now $timeout seconds" 2 |
| 332 | return -1 |
| 333 | } |
| 334 | -re ".*$gdb_prompt $" { |
| 335 | fail "$description" |
| 336 | set timeout $oldtimeout |
| 337 | verbose "Timeout is now $timeout seconds" 2 |
| 338 | return -1 |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | set timeout $oldtimeout |
| 343 | verbose "Timeout is now $timeout seconds" 2 |
| 344 | |
| 345 | # do we have a version number ? |
| 346 | gdb_test_multiple "print version" "printed version" { |
| 347 | -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" { |
| 348 | pass "printed version as string" |
| 349 | } |
| 350 | -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" { |
| 351 | pass "printed version as pointer" |
| 352 | } |
| 353 | -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" { |
| 354 | pass "printed version with cast" |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | do_steps_and_nexts |
| 359 | |
| 360 | gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string" |
| 361 | |
| 362 | # do_steps_and_nexts left us ready to execute an xmalloc call, |
| 363 | # so give that a try. |
| 364 | # If we don't actually enter the xmalloc call when we give a |
| 365 | # step command that seems like a genuine bug. It seems to happen |
| 366 | # on most RISC processors. |
| 367 | # NOTE drow/2003-06-22: However, if we step back to the preceding two |
| 368 | # lines, just keep stepping until we enter. |
| 369 | set stepped_back 0 |
| 370 | setup_xfail "alpha-*-*" "mips-*-*" |
| 371 | set description "step into xmalloc call" |
| 372 | gdb_test_multiple "step" "$description" { |
| 373 | -re "ncmd = 0;.*$gdb_prompt $" { |
| 374 | set stepped_back 1 |
| 375 | send_gdb "step\n" |
| 376 | exp_continue |
| 377 | } |
| 378 | -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" { |
| 379 | set stepped_back 1 |
| 380 | send_gdb "step\n" |
| 381 | exp_continue |
| 382 | } |
| 383 | -re "dirsize = 1;.*$gdb_prompt $" { |
| 384 | set stepped_back 1 |
| 385 | send_gdb "step\n" |
| 386 | exp_continue |
| 387 | } |
| 388 | -re ".*dirarg = .* xmalloc.*$gdb_prompt $" { |
| 389 | if { $stepped_back == 1 } { |
| 390 | send_gdb "step\n" |
| 391 | exp_continue |
| 392 | } else { |
| 393 | fail "$description" |
| 394 | } |
| 395 | } |
| 396 | -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" { |
| 397 | pass "$description" |
| 398 | } |
| 399 | -re ".*No such file or directory.\r\n$gdb_prompt $" { |
| 400 | pass "$description (no source available)" |
| 401 | } |
| 402 | -re "A file or directory .* does not exist..\r\n$gdb_prompt $" { |
| 403 | pass "$description (no source available)" |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | # start the "xgdb" process |
| 408 | if [target_info exists gdb,noinferiorio] { |
| 409 | # Maybe testing with a local extended-remote gdbserver. With |
| 410 | # no way to interact with inferior GDB, all we can do is let |
| 411 | # it run. |
| 412 | send_gdb "continue\n" |
| 413 | # Wait a bit while the inferior gdb gets to its prompt. |
| 414 | sleep 1 |
| 415 | } else { |
| 416 | set test "xgdb is at prompt" |
| 417 | gdb_test_multiple "continue" $test { |
| 418 | -re "GNU gdb \[0-9\.\]*.*Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*License GPLv3\\+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.*This is free software: you are free to change and redistribute it.*There is NO WARRANTY, to the extent permitted by law. Type \"show copying\".*and \"show warranty\" for details.*This GDB was configured as .*$gdb_prompt $" { |
| 419 | pass $test |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | # set xgdb prompt so we can tell which is which |
| 424 | gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" { |
| 425 | -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" { |
| 426 | pass "Set xgdb prompt" |
| 427 | } |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | # kill the xgdb process |
| 432 | set description "send ^C to child process" |
| 433 | send_gdb "\003" |
| 434 | gdb_expect { |
| 435 | -re "Program received signal SIGINT.*$gdb_prompt $" { |
| 436 | pass "$description" |
| 437 | } |
| 438 | -re ".*$gdb_prompt $" { |
| 439 | fail "$description" |
| 440 | } |
| 441 | timeout { |
| 442 | fail "$description (timeout)" |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | set description "send SIGINT signal to child process" |
| 447 | gdb_test "signal SIGINT" \ |
| 448 | "Continuing with signal SIGINT.*" \ |
| 449 | "$description" |
| 450 | |
| 451 | # get a stack trace |
| 452 | # |
| 453 | # This fails on some linux systems for unknown reasons. On the |
| 454 | # systems where it fails, sometimes it works fine when run manually. |
| 455 | # The testsuite failures may not be limited to just aout systems. |
| 456 | setup_xfail "i*86-pc-linuxaout-gnu" |
| 457 | set description "backtrace through signal handler" |
| 458 | gdb_test_multiple "backtrace" "$description" { |
| 459 | -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" { |
| 460 | pass "$description" |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | |
| 465 | # Set the timeout back to the value it had when we were called. |
| 466 | set timeout $oldtimeout |
| 467 | verbose "Timeout is now $timeout seconds" 2 |
| 468 | |
| 469 | # Restart gdb in case next test expects it to be started already. |
| 470 | return 0 |
| 471 | } |
| 472 | |
| 473 | # Run the test with self. |
| 474 | # Copy the file executable file in case this OS doesn't like to edit its own |
| 475 | # text space. |
| 476 | |
| 477 | set GDB_FULLPATH [find_gdb $GDB] |
| 478 | |
| 479 | if {[is_remote host]} { |
| 480 | set xgdb x$tool |
| 481 | } else { |
| 482 | set xgdb [standard_output_file x$tool] |
| 483 | } |
| 484 | |
| 485 | # Remove any old copy lying around. |
| 486 | remote_file host delete $xgdb |
| 487 | |
| 488 | gdb_start |
| 489 | set file [remote_download host $GDB_FULLPATH $xgdb] |
| 490 | set result [test_with_self $file] |
| 491 | gdb_exit |
| 492 | catch "remote_file host delete $file" |
| 493 | |
| 494 | if {$result <0} then { |
| 495 | warning "Couldn't test self" |
| 496 | return -1 |
| 497 | } |