gdb/testsuite/gdb.gdb/selftest.exp

   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 "$description (timeout)"
 443         }
 444     }
 445
 446     set description "send SIGINT signal to child process"
 447     gdb_test_multiple "signal SIGINT" "$description" {
 448         -re "^signal SIGINT\r\nContinuing with signal SIGINT.\r\nQuit\r\n.* $" {
 449             pass "$description"
 450         }
 451     }
 452
 453     set description "send ^C to child process again"
 454     send_gdb "\003"
 455     gdb_expect {
 456         -re "Program received signal SIGINT.*$gdb_prompt $" {
 457             pass "$description"
 458         }
 459         -re ".*$gdb_prompt $" {
 460             fail "$description"
 461         }
 462         timeout {
 463             fail "$description (timeout)"
 464         }
 465     }
 466
 467
 468     # get a stack trace
 469     #
 470     # This fails on some linux systems for unknown reasons.  On the
 471     # systems where it fails, sometimes it works fine when run manually.
 472     # The testsuite failures may not be limited to just aout systems.
 473     setup_xfail "i*86-pc-linuxaout-gnu"
 474     set description "backtrace through signal handler"
 475     gdb_test_multiple "backtrace" "$description" {
 476         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 477             pass "$description"
 478         }
 479     }
 480
 481
 482     # Set the timeout back to the value it had when we were called.
 483     set timeout $oldtimeout
 484     verbose "Timeout is now $timeout seconds" 2
 485
 486     # Restart gdb in case next test expects it to be started already.
 487     return 0
 488 }
 489
 490 # Run the test with self.
 491 # Copy the file executable file in case this OS doesn't like to edit its own
 492 # text space.
 493
 494 set GDB_FULLPATH [find_gdb $GDB]
 495
 496 if {[is_remote host]} {
 497     set xgdb x$tool
 498 } else {
 499     set xgdb [standard_output_file x$tool]
 500 }
 501
 502 # Remove any old copy lying around.
 503 remote_file host delete $xgdb
 504
 505 gdb_start
 506 set file [remote_download host $GDB_FULLPATH $xgdb]
 507 set result [test_with_self $file]
 508 gdb_exit
 509 catch "remote_file host delete $file"
 510
 511 if {$result <0} then {
 512     warning "Couldn't test self"
 513     return -1
 514 }