gdb/testsuite/gdb.gdb/selftest.exp

   1 # Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002, 2003, 2004,
   2 # 2005, 2006, 2007 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 2 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, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 # This file was written by Rob Savoye. (rob@cygnus.com)
  19
  20 if $tracelevel then {
  21     strace $tracelevel
  22 }
  23
  24 set prms_id 0
  25 set bug_id 0
  26
  27 # are we on a target board
  28 if { [is_remote target] || ![isnative] } then {
  29     return
  30 }
  31
  32 # Not all of the lines of code near the start of main are executed for
  33 # every machine.  Also, optimization may reorder some of the lines.
  34 # So all we do is try to step or next over everything until we get
  35 # to a line that we know is always executed.
  36
  37 proc do_steps_and_nexts {} {
  38     global gdb_prompt
  39     global srcdir
  40
  41     gdb_reinitialize_dir $srcdir/..
  42
  43     set unlikely_line 0
  44     for {set count 0} {$count < 32} {incr count} {
  45         send_gdb "list\n"
  46         # NOTE: carlton/2002-12-11: The "initial brace" and
  47         # "current_directory initialization" possibilities happen to
  48         # me with GCC 3.1 on i686-pc-linux-gnu when I compile with
  49         # optimization.
  50         gdb_expect {
  51             -re ".*context = data.*$gdb_prompt $" {
  52                 set description "step over context initialization"
  53                 set command "step"
  54             }
  55             -re ".*argc = context->argc.*$gdb_prompt $" {
  56                 set description "step over argc initialization"
  57                 set command "step"
  58             }
  59             -re ".*argv = context->argv.*$gdb_prompt $" {
  60                 set description "step over argv initialization"
  61                 set command "step"
  62             }
  63             -re ".*quiet = 0.*$gdb_prompt $" {
  64                 set description "step over quiet initialization"
  65                 set command "step"
  66             }
  67             -re ".*batch = 0.*$gdb_prompt $" {
  68                 set description "step over batch initialization"
  69                 set command "step"
  70             }
  71             -re ".*symarg = NULL.*$gdb_prompt $" {
  72                 set description "step over symarg initialization"
  73                 set command "step"
  74             }
  75             -re ".*execarg = NULL.*$gdb_prompt $" {
  76                 set description "step over execarg initialization"
  77                 set command "step"
  78             }
  79             -re ".*corearg = NULL.*$gdb_prompt $" {
  80                 set description "step over corearg initialization"
  81                 set command "step"
  82             }
  83             -re ".*cdarg = NULL.*$gdb_prompt $" {
  84                 set description "step over cdarg initialization"
  85                 set command "step"
  86             }
  87             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  88                 set description "step over ttyarg initialization"
  89                 set command "step"
  90             }
  91             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
  92                 set description "next over get_run_time and everything it calls"
  93                 set command "next"
  94             }
  95             -re ".*START_PROGRESS.*$gdb_prompt $" {
  96                 # Note: ezannoni/2004/02/17: This check should be
  97                 # removed, since as of today that source line is not
  98                 # in gdb anymore.
  99                 set description "next over START_PROGRESS and everything it calls"
 100                 set command "next"
 101             }
 102             -re ".*mac_init.*$gdb_prompt $" {
 103                 set description "next over mac_init and everything it calls"
 104                 set command "next"
 105             }
 106             -re ".*init_malloc.*$gdb_prompt $" {
 107                 # gdb 6.2.X is the last gdb which called init_malloc
 108                 set description "next over init_malloc and everything it calls"
 109                 set command "next"
 110             }
 111             -re ".*lim_at_start.*$gdb_prompt $" {
 112                 set description "next over lim_at_start initialization"
 113                 set command "next"
 114             }
 115             -re ".*count . 0x3.*$gdb_prompt $" {
 116                 set description "next over conditional stack alignment code 1"
 117                 set command "next"
 118             }
 119             -re ".*if .i != 0.*$gdb_prompt $" {
 120                 set description "next over conditional stack alignment code 2"
 121                 set command "next"
 122             }
 123             -re ".*alloca .i - 4.*$gdb_prompt $" {
 124                 set description "next over conditional stack alignment alloca"
 125                 set command "next"
 126             }
 127             -re ".*cmdsize = 1.*$gdb_prompt $" {
 128                 set description "step over cmdsize initialization"
 129                 set command "next"
 130             }
 131             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 132                 set description "next over cmdarg initialization via xmalloc"
 133                 set command "next"
 134             }
 135             -re ".*ncmd = 0.*$gdb_prompt $" {
 136                 set description "next over ncmd initialization"
 137                 set command "next"
 138             }
 139             -re ".*dirsize = 1.*$gdb_prompt $" {
 140                 set description "next over dirsize initialization"
 141                 set command "next"
 142             }
 143             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 144                 return
 145             }
 146             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 147                 set description "next over setlocale LC_MESSAGES"
 148                 set command "next"
 149             }
 150             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 151                 set description "next over setlocale LC_CTYPE"
 152                 set command "next"
 153             }
 154             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 155                 set description "next over bindtextdomain"
 156                 set command "next"
 157             }
 158             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 159                 set description "next over textdomain PACKAGE"
 160                 set command "next"
 161             }
 162             -re "\[0-9\]+\[\t \]+\{\r\n$gdb_prompt $" {
 163                 set description "step over initial brace"
 164                 set command "step"
 165             }
 166             -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
 167                 set description "step over current_directory initialization"
 168                 set command "step"
 169             }
 170             -re ".*gdb_sysroot = .*$gdb_prompt $" {
 171                 # NOTE: carlton/2003-01-15: More optimization reordering,
 172                 # observed on GCC 3.1.
 173                 set description "step over gdb_sysroot initialization"
 174                 set command "step"
 175             }
 176             -re ".*ndir = 0.*$gdb_prompt $" {
 177                 set description "step over ndir initialization"
 178                 set command "step"
 179             }
 180             -re ".*instream = stdin.*$gdb_prompt $" {
 181                 set description "step over instream initialization"
 182                 set command "step"
 183             }
 184             -re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf..;.*$gdb_prompt $" {
 185                 set description "next over getcwd"
 186                 set command "next"
 187             }
 188             -re ".*quit_flag = 0.*$gdb_prompt $" {
 189                 set description "step over quit_flag initialization"
 190                 set command "step"
 191             }
 192             -re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
 193                 set description "step over gdb_stdout initialization"
 194                 set command "step"
 195             }
 196             -re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
 197                 set description "step over gdb_stderr initialization"
 198                 set command "step"
 199             }
 200             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 201                 setup_xfail "rs6000-*-aix3*"
 202                 fail "must be able to list source lines"
 203                 return
 204             }
 205             -re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
 206                 if { $unlikely_line == 0 } {
 207                     # This is a GCC optimization bug; a constant has been
 208                     # associated with the wrong line number.
 209                     setup_xfail "*-*-*" gcc/26475
 210                     fail "$description (unlikely line from gcc)"
 211                     set unlikely_line 1
 212                 }
 213                 set description "next over xstrdup"
 214                 set command "next"
 215             }
 216             -re ".*$gdb_prompt $" {
 217                 fail "unknown source line after $description"
 218                 return
 219             }
 220             default {
 221                 fail "unknown source line near main"
 222                 return
 223             }
 224         }
 225         send_gdb "$command\n"
 226         gdb_expect {
 227             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 228                 fail "$description (no source available)"
 229             }
 230             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 231                 fail "$description (no source available)"
 232             }
 233             -re ".*$gdb_prompt $" {
 234                 pass "$description"
 235             }
 236             timeout {
 237                 fail "$description (timeout)"
 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 "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     send_gdb "run -nw\n"
 311     gdb_expect {
 312         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 313             pass "$description"
 314         }
 315         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 316             xfail "$description (line numbers scrambled?)"
 317         }
 318         -re "vfork: No more processes.*$gdb_prompt $" {
 319             fail "$description (out of virtual memory)"
 320             set timeout $oldtimeout
 321             verbose "Timeout is now $timeout seconds" 2
 322             return -1
 323         }
 324         -re ".*$gdb_prompt $" {
 325             fail "$description"
 326             set timeout $oldtimeout
 327             verbose "Timeout is now $timeout seconds" 2
 328             return -1
 329         }
 330         timeout {
 331             fail "$description (timeout)"
 332         }
 333     }
 334
 335     set timeout $oldtimeout
 336     verbose "Timeout is now $timeout seconds" 2
 337
 338     # do we have a version number ?
 339     send_gdb "print version\n"
 340     gdb_expect {
 341         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 342             pass "printed version as string"
 343         }
 344         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 345             pass "printed version as pointer"
 346         }
 347         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 348             pass "printed version with cast"
 349         }
 350         -re ".*$gdb_prompt $"   { fail "printed version" }
 351         timeout         { fail "(timeout) printed version" }
 352     }
 353
 354     do_steps_and_nexts
 355
 356     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 357
 358     # do_steps_and_nexts left us ready to execute an xmalloc call,
 359     # so give that a try.
 360     # If we don't actually enter the xmalloc call when we give a
 361     # step command that seems like a genuine bug.  It seems to happen
 362     # on most RISC processors.
 363     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 364     # lines, just keep stepping until we enter.
 365     set stepped_back 0
 366     setup_xfail "alpha-*-*" "mips-*-*"
 367     set description "step into xmalloc call"
 368     send_gdb "step\n"
 369     gdb_expect {
 370         -re "ncmd = 0;.*$gdb_prompt $" {
 371             set stepped_back 1
 372             send_gdb "step\n"
 373             exp_continue
 374         }
 375         -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 376             set stepped_back 1
 377             send_gdb "step\n"
 378             exp_continue
 379         }
 380         -re "dirsize = 1;.*$gdb_prompt $" {
 381             set stepped_back 1
 382             send_gdb "step\n"
 383             exp_continue
 384         }
 385         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 386             if { $stepped_back == 1 } {
 387                 send_gdb "step\n"
 388                 exp_continue
 389             } else {
 390                 fail "$description"
 391             }
 392         }
 393         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 394             pass "$description"
 395         }
 396         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 397             pass "$description (no source available)"
 398         }
 399         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 400             pass "$description (no source available)"
 401         }
 402         -re ".*$gdb_prompt $" {
 403             fail "$description"
 404         }
 405         timeout {
 406             fail "$description (timeout)"
 407         }
 408     }
 409
 410     # start the "xgdb" process
 411     send_gdb "continue\n"
 412     gdb_expect {
 413         -re "GNU gdb \[0-9\.\]*.*
 414 Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*
 415 GDB is free software, covered by the GNU General Public License, and you are.*
 416 welcome to change it and/or distribute copies of it under certain conditions.*
 417 Type \"show copying\" to see the conditions.*
 418 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 419 This GDB was configured as .*$gdb_prompt $"\
 420             { pass "xgdb is at prompt" }
 421         -re "GDB is free software and you are welcome to distribute copies of it.*
 422  under certain conditions; type \"show copying\" to see the conditions..*
 423 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 424 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 425             { pass "xgdb is at prompt (obsolescent gdb)" }
 426         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 427         timeout             { fail "(timeout) xgdb is at prompt" }
 428     }
 429
 430     # set xgdb prompt so we can tell which is which
 431     send_gdb "set prompt (xgdb) \n"
 432     gdb_expect {
 433         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 434         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 435         default                         { fail "(timeout) Set xgdb prompt" }
 436     }
 437
 438     # kill the xgdb process
 439     set description "send ^C to child process"
 440     send_gdb "\003"
 441     gdb_expect {
 442         -re "Program received signal SIGINT.*$gdb_prompt $" {
 443             pass "$description"
 444         }
 445         -re ".*$gdb_prompt $" {
 446             fail "$description"
 447         }
 448         timeout {
 449             fail "$description (timeout)"
 450         }
 451     }
 452
 453     set description "send SIGINT signal to child process"
 454     send_gdb "signal SIGINT\n"
 455     gdb_expect {
 456         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 457             pass "$description"
 458         }
 459         -re ".*$gdb_prompt $" {
 460             fail "$description"
 461         }
 462         timeout {
 463             fail "$description (timeout)"
 464         }
 465     }
 466
 467     # get a stack trace
 468     #
 469     # This fails on some linux systems for unknown reasons.  On the
 470     # systems where it fails, sometimes it works fine when run manually.
 471     # The testsuite failures may not be limited to just aout systems.
 472     setup_xfail "i*86-pc-linuxaout-gnu"
 473     set description "backtrace through signal handler"
 474     send_gdb "backtrace\n"
 475     gdb_expect {
 476         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 477             pass "$description"
 478         }
 479         -re ".*$gdb_prompt $" {
 480             # On the alpha, we hit the infamous problem about gdb
 481             # being unable to get the frame pointer (mentioned in
 482             # gdb/README).  As it is intermittent, there is no way to
 483             # XFAIL it which will give us an XPASS if the problem goes
 484             # away.
 485             setup_xfail "alpha*-*-osf*"
 486             fail "$description"
 487         }
 488         timeout {
 489             fail "$description (timeout)"
 490         }
 491     }
 492
 493
 494     # Set the timeout back to the value it had when we were called.
 495     set timeout $oldtimeout
 496     verbose "Timeout is now $timeout seconds" 2
 497
 498     # Restart gdb in case next test expects it to be started already.
 499     return 0
 500 }
 501
 502 # Find a pathname to a file that we would execute if the shell was asked
 503 # to run $arg using the current PATH.
 504
 505 proc find_gdb { arg } {
 506
 507     # If the arg directly specifies an existing executable file, then
 508     # simply use it.
 509
 510     if [file executable $arg] then {
 511         return $arg
 512     }
 513
 514     set result [which $arg]
 515     if [string match "/" [ string range $result 0 0 ]] then {
 516         return $result
 517     }
 518
 519     # If everything fails, just return the unqualified pathname as default
 520     # and hope for best.
 521
 522     return $arg
 523 }
 524
 525 # Run the test with self.
 526 # Copy the file executable file in case this OS doesn't like to edit its own
 527 # text space.
 528
 529 set GDB_FULLPATH [find_gdb $GDB]
 530
 531 # Remove any old copy lying around.
 532 remote_file host delete x$tool
 533
 534 gdb_start
 535 set file [remote_download host $GDB_FULLPATH x$tool]
 536 set result [test_with_self $file];
 537 gdb_exit;
 538 catch "remote_file host delete $file";
 539
 540 if {$result <0} then {
 541     warning "Couldn't test self"
 542     return -1
 543 }