gdb/testsuite/gdb.gdb/selftest.exp

   1 # Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002, 2003, 2004,
   2 # 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Rob Savoye. (rob@cygnus.com)
  18
  19 if $tracelevel then {
  20     strace $tracelevel
  21 }
  22
  23
  24 # are we on a target board
  25 if { [is_remote target] || ![isnative] } then {
  26     return
  27 }
  28
  29 # Not all of the lines of code near the start of main are executed for
  30 # every machine.  Also, optimization may reorder some of the lines.
  31 # So all we do is try to step or next over everything until we get
  32 # to a line that we know is always executed.
  33
  34 proc do_steps_and_nexts {} {
  35     global gdb_prompt
  36     global srcdir
  37
  38     gdb_reinitialize_dir $srcdir/..
  39
  40     set unlikely_line 0
  41     for {set count 0} {$count < 32} {incr count} {
  42         # NOTE: carlton/2002-12-11: The "initial brace" and
  43         # "current_directory initialization" possibilities happen to
  44         # me with GCC 3.1 on i686-pc-linux-gnu when I compile with
  45         # optimization.
  46         gdb_test_multiple "list" "list" {
  47             -re ".*context = data.*$gdb_prompt $" {
  48                 set description "step over context initialization"
  49                 set command "step"
  50             }
  51             -re ".*argc = context->argc.*$gdb_prompt $" {
  52                 set description "step over argc initialization"
  53                 set command "step"
  54             }
  55             -re ".*argv = context->argv.*$gdb_prompt $" {
  56                 set description "step over argv initialization"
  57                 set command "step"
  58             }
  59             -re ".*quiet = 0.*$gdb_prompt $" {
  60                 set description "step over quiet initialization"
  61                 set command "step"
  62             }
  63             -re ".*batch = 0.*$gdb_prompt $" {
  64                 set description "step over batch initialization"
  65                 set command "step"
  66             }
  67             -re ".*symarg = NULL.*$gdb_prompt $" {
  68                 set description "step over symarg initialization"
  69                 set command "step"
  70             }
  71             -re ".*execarg = NULL.*$gdb_prompt $" {
  72                 set description "step over execarg initialization"
  73                 set command "step"
  74             }
  75             -re ".*pidarg = NULL.*$gdb_prompt $" {
  76                 set description "step over pidarg initialization"
  77                 set command "step"
  78             }
  79             -re ".*corearg = NULL.*$gdb_prompt $" {
  80                 set description "step over corearg initialization"
  81                 set command "step"
  82             }
  83             -re ".*pid_or_core_arg = NULL.*$gdb_prompt $" {
  84                 set description "step over pid_or_core_arg initialization"
  85                 set command "step"
  86             }
  87             -re ".*cdarg = NULL.*$gdb_prompt $" {
  88                 set description "step over cdarg initialization"
  89                 set command "step"
  90             }
  91             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  92                 set description "step over ttyarg initialization"
  93                 set command "step"
  94             }
  95             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
  96                 set description "next over get_run_time and everything it calls"
  97                 set command "next"
  98             }
  99             -re ".*START_PROGRESS.*$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 $" {
 128                 set description "next over conditional stack alignment alloca"
 129                 set command "next"
 130             }
 131             -re ".*cmdsize = 1.*$gdb_prompt $" {
 132                 set description "step over cmdsize initialization"
 133                 set command "next"
 134             }
 135             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 136                 set description "next over cmdarg initialization via xmalloc"
 137                 set command "next"
 138             }
 139             -re ".*ncmd = 0.*$gdb_prompt $" {
 140                 set description "next over ncmd initialization"
 141                 set command "next"
 142             }
 143             -re ".*dirsize = 1.*$gdb_prompt $" {
 144                 set description "next over dirsize initialization"
 145                 set command "next"
 146             }
 147             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 148                 return
 149             }
 150             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 151                 set description "next over setlocale LC_MESSAGES"
 152                 set command "next"
 153             }
 154             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 155                 set description "next over setlocale LC_CTYPE"
 156                 set command "next"
 157             }
 158             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 159                 set description "next over bindtextdomain"
 160                 set command "next"
 161             }
 162             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 163                 set description "next over textdomain PACKAGE"
 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 $" {
 189                 set description "next over getcwd"
 190                 set command "next"
 191             }
 192             -re ".*quit_flag = 0.*$gdb_prompt $" {
 193                 set description "step over quit_flag initialization"
 194                 set command "step"
 195             }
 196             -re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
 197                 set description "step over gdb_stdout initialization"
 198                 set command "step"
 199             }
 200             -re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
 201                 set description "step over gdb_stderr initialization"
 202                 set command "step"
 203             }
 204             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 205                 setup_xfail "rs6000-*-aix3*"
 206                 fail "must be able to list source lines"
 207                 return
 208             }
 209             -re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
 210                 if { $unlikely_line == 0 } {
 211                     # This is a GCC optimization bug; a constant has been
 212                     # associated with the wrong line number.
 213                     setup_xfail "*-*-*" gcc/26475
 214                     fail "$description (unlikely line from gcc)"
 215                     set unlikely_line 1
 216                 }
 217                 set description "next over xstrdup"
 218                 set command "next"
 219             }
 220             -re ".*$gdb_prompt $" {
 221                 fail "unknown source line after $description"
 222                 return
 223             }
 224             default {
 225                 fail "unknown source line near main"
 226                 return
 227             }
 228         }
 229         gdb_test_multiple "$command" "$description" {
 230             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 231                 fail "$description (no source available)"
 232             }
 233             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 234                 fail "$description (no source available)"
 235             }
 236             -re ".*$gdb_prompt $" {
 237                 pass "$description"
 238             }
 239         }
 240     }
 241 }
 242
 243 proc test_with_self { executable } {
 244     global gdb_prompt
 245     global tool
 246     global det_file
 247     global decimal
 248     global timeout
 249
 250     # load yourself into the debugger
 251     # This can take a relatively long time, particularly for testing where
 252     # the executable is being accessed over a network, or where gdb does not
 253     # support partial symbols for a particular target and has to load the
 254     # entire symbol table.  Set the timeout to 10 minutes, which should be
 255     # adequate for most environments (it *has* timed out with 5 min on a
 256     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 257     # After gdb is started, set the timeout to 30 seconds for the duration
 258     # of this test, and then back to the original value.
 259
 260     set oldtimeout $timeout
 261     set timeout 600
 262     verbose "Timeout is now $timeout seconds" 2
 263
 264     global gdb_file_cmd_debug_info
 265     set gdb_file_cmd_debug_info "unset"
 266
 267     set result [gdb_load $executable]
 268     set timeout $oldtimeout
 269     verbose "Timeout is now $timeout seconds" 2
 270
 271     if { $result != 0 } then {
 272         return -1
 273     }
 274
 275     if { $gdb_file_cmd_debug_info != "debug" } then {
 276         untested "No debug information, skipping testcase."
 277         return -1
 278     }
 279
 280     # disassemble yourself
 281     gdb_test "x/10i main" \
 282             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 283             "Disassemble main"
 284
 285     # Set a breakpoint at main
 286     gdb_test "break captured_main" \
 287             "Breakpoint.*at.* file.*, line.*" \
 288             "breakpoint in captured_main"
 289
 290     # We'll need this when we send a ^C to GDB.  Need to do it before we
 291     # run the program and gdb starts saving and restoring tty states.
 292     # On Ultrix, we don't need it and it is really slow (because shell_escape
 293     # doesn't use vfork).
 294     if ![istarget "*-*-ultrix*"] then {
 295         gdb_test "shell stty intr '^C'" "" \
 296             "set interrupt character in test_with_self"
 297     }
 298
 299     # FIXME: If we put this after the run to main, the first list
 300     # command doesn't print the same line as the current line where
 301     # gdb is stopped.
 302     gdb_test_no_output "set listsize 1" "set listsize to 1"
 303
 304     # run yourself
 305     # It may take a very long time for the inferior gdb to start (lynx),
 306     # so we bump it back up for the duration of this command.
 307     set timeout 600
 308
 309     set description "run until breakpoint at captured_main"
 310     gdb_test_multiple "run -nw" "$description" {
 311         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 312             pass "$description"
 313         }
 314         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 315             xfail "$description (line numbers scrambled?)"
 316         }
 317         -re "vfork: No more processes.*$gdb_prompt $" {
 318             fail "$description (out of virtual memory)"
 319             set timeout $oldtimeout
 320             verbose "Timeout is now $timeout seconds" 2
 321             return -1
 322         }
 323         -re ".*$gdb_prompt $" {
 324             fail "$description"
 325             set timeout $oldtimeout
 326             verbose "Timeout is now $timeout seconds" 2
 327             return -1
 328         }
 329     }
 330
 331     set timeout $oldtimeout
 332     verbose "Timeout is now $timeout seconds" 2
 333
 334     # do we have a version number ?
 335     gdb_test_multiple "print version" "printed version" {
 336         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 337             pass "printed version as string"
 338         }
 339         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 340             pass "printed version as pointer"
 341         }
 342         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 343             pass "printed version with cast"
 344         }
 345     }
 346
 347     do_steps_and_nexts
 348
 349     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 350
 351     # do_steps_and_nexts left us ready to execute an xmalloc call,
 352     # so give that a try.
 353     # If we don't actually enter the xmalloc call when we give a
 354     # step command that seems like a genuine bug.  It seems to happen
 355     # on most RISC processors.
 356     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 357     # lines, just keep stepping until we enter.
 358     set stepped_back 0
 359     setup_xfail "alpha-*-*" "mips-*-*"
 360     set description "step into xmalloc call"
 361     gdb_test_multiple "step" "$description" {
 362         -re "ncmd = 0;.*$gdb_prompt $" {
 363             set stepped_back 1
 364             send_gdb "step\n"
 365             exp_continue
 366         }
 367         -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 368             set stepped_back 1
 369             send_gdb "step\n"
 370             exp_continue
 371         }
 372         -re "dirsize = 1;.*$gdb_prompt $" {
 373             set stepped_back 1
 374             send_gdb "step\n"
 375             exp_continue
 376         }
 377         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 378             if { $stepped_back == 1 } {
 379                 send_gdb "step\n"
 380                 exp_continue
 381             } else {
 382                 fail "$description"
 383             }
 384         }
 385         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 386             pass "$description"
 387         }
 388         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 389             pass "$description (no source available)"
 390         }
 391         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 392             pass "$description (no source available)"
 393         }
 394     }
 395
 396     # start the "xgdb" process
 397     gdb_test_multiple "continue" "xgdb is at prompt" {
 398         -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 $" {
 399             pass "xgdb is at prompt"
 400         }
 401         -re "GNU gdb \[0-9\.\]*.*Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*GDB is free software, covered by the GNU General Public License, and you are.*welcome to change it and/or distribute copies of it under certain conditions.*Type \"show copying\" to see the conditions.*There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*This GDB was configured as .*$gdb_prompt $" {
 402             pass "xgdb is at prompt (obsolescent gdb 2)"
 403         }
 404         -re "GDB is free software and you are welcome to distribute copies of it.* under certain conditions; type \"show copying\" to see the conditions..*There is absolutely no warranty for GDB; type \"show warranty\" for details..*GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $" {
 405             pass "xgdb is at prompt (obsolescent gdb 1)"
 406         }
 407     }
 408
 409     # set xgdb prompt so we can tell which is which
 410     gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" {
 411         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" {
 412             pass "Set xgdb prompt"
 413         }
 414     }
 415
 416     # kill the xgdb process
 417     set description "send ^C to child process"
 418     send_gdb "\003"
 419     gdb_expect {
 420         -re "Program received signal SIGINT.*$gdb_prompt $" {
 421             pass "$description"
 422         }
 423         -re ".*$gdb_prompt $" {
 424             fail "$description"
 425         }
 426         timeout {
 427             fail "$description (timeout)"
 428         }
 429     }
 430
 431     set description "send SIGINT signal to child process"
 432     gdb_test "signal SIGINT" \
 433         "Continuing with signal SIGINT.*" \
 434         "$description"
 435
 436     # get a stack trace
 437     #
 438     # This fails on some linux systems for unknown reasons.  On the
 439     # systems where it fails, sometimes it works fine when run manually.
 440     # The testsuite failures may not be limited to just aout systems.
 441     setup_xfail "i*86-pc-linuxaout-gnu"
 442     set description "backtrace through signal handler"
 443     gdb_test_multiple "backtrace" "$description" {
 444         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 445             pass "$description"
 446         }
 447         -re ".*$gdb_prompt $" {
 448             # On the alpha, we hit the infamous problem about gdb
 449             # being unable to get the frame pointer (mentioned in
 450             # gdb/README).  As it is intermittent, there is no way to
 451             # XFAIL it which will give us an XPASS if the problem goes
 452             # away.
 453             setup_xfail "alpha*-*-osf*"
 454             fail "$description"
 455         }
 456     }
 457
 458
 459     # Set the timeout back to the value it had when we were called.
 460     set timeout $oldtimeout
 461     verbose "Timeout is now $timeout seconds" 2
 462
 463     # Restart gdb in case next test expects it to be started already.
 464     return 0
 465 }
 466
 467 # Find a pathname to a file that we would execute if the shell was asked
 468 # to run $arg using the current PATH.
 469
 470 proc find_gdb { arg } {
 471
 472     # If the arg directly specifies an existing executable file, then
 473     # simply use it.
 474
 475     if [file executable $arg] then {
 476         return $arg
 477     }
 478
 479     set result [which $arg]
 480     if [string match "/" [ string range $result 0 0 ]] then {
 481         return $result
 482     }
 483
 484     # If everything fails, just return the unqualified pathname as default
 485     # and hope for best.
 486
 487     return $arg
 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 $GDB]
 495
 496 # Remove any old copy lying around.
 497 remote_file host delete x$tool
 498
 499 gdb_start
 500 set file [remote_download host $GDB_FULLPATH x$tool]
 501 set result [test_with_self $file];
 502 gdb_exit;
 503 catch "remote_file host delete $file";
 504
 505 if {$result <0} then {
 506     warning "Couldn't test self"
 507     return -1
 508 }