gdb/testsuite/gdb.base/selftest.exp

   1 #   Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002, 2003
   2 #   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 # Please email any bugs, comments, and/or additions to this file to:
  19 # bug-gdb@prep.ai.mit.edu
  20
  21 # This file was written by Rob Savoye. (rob@cygnus.com)
  22
  23 if $tracelevel then {
  24     strace $tracelevel
  25 }
  26
  27 set prms_id 0
  28 set bug_id 0
  29
  30 # are we on a target board
  31 if [is_remote target] {
  32     return
  33 }
  34
  35 # Not all of the lines of code near the start of main are executed for
  36 # every machine.  Also, optimization may reorder some of the lines.
  37 # So all we do is try to step or next over everything until we get
  38 # to a line that we know is always executed.
  39
  40 proc do_steps_and_nexts {} {
  41     global gdb_prompt
  42     global srcdir
  43
  44     gdb_reinitialize_dir $srcdir/..
  45
  46     for {set count 0} {$count < 32} {incr count} {
  47         send_gdb "list\n"
  48         # NOTE: carlton/2002-12-11: The "initial brace" and
  49         # "current_directory initialization" possibilities happen to
  50         # me with GCC 3.1 on i686-pc-linux-gnu when I compile with
  51         # optimization.
  52         gdb_expect {
  53             -re ".*context = data.*$gdb_prompt $" {
  54                 set description "step over context initialization"
  55                 set command "step"
  56             }
  57             -re ".*argc = context->argc.*$gdb_prompt $" {
  58                 set description "step over argc initialization"
  59                 set command "step"
  60             }
  61             -re ".*argv = context->argv.*$gdb_prompt $" {
  62                 set description "step over argv initialization"
  63                 set command "step"
  64             }
  65             -re ".*quiet = 0.*$gdb_prompt $" {
  66                 set description "step over quiet initialization"
  67                 set command "step"
  68             }
  69             -re ".*batch = 0.*$gdb_prompt $" {
  70                 set description "step over batch initialization"
  71                 set command "step"
  72             }
  73             -re ".*symarg = NULL.*$gdb_prompt $" {
  74                 set description "step over symarg initialization"
  75                 set command "step"
  76             }
  77             -re ".*execarg = NULL.*$gdb_prompt $" {
  78                 set description "step over execarg initialization"
  79                 set command "step"
  80             }
  81             -re ".*corearg = NULL.*$gdb_prompt $" {
  82                 set description "step over corearg initialization"
  83                 set command "step"
  84             }
  85             -re ".*cdarg = NULL.*$gdb_prompt $" {
  86                 set description "step over cdarg initialization"
  87                 set command "step"
  88             }
  89             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  90                 set description "step over ttyarg initialization"
  91                 set command "step"
  92             }
  93             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
  94                 set description "next over get_run_time and everything it calls"
  95                 set command "next"
  96             }
  97             -re ".*START_PROGRESS.*$gdb_prompt $" {
  98                 set description "next over START_PROGRESS and everything it calls"
  99                 set command "next"
 100             }
 101             -re ".*mac_init.*$gdb_prompt $" {
 102                 set description "next over mac_init and everything it calls"
 103                 set command "next"
 104             }
 105             -re ".*init_malloc.*$gdb_prompt $" {
 106                 set description "next over init_malloc and everything it calls"
 107                 set command "next"
 108             }
 109             -re ".*lim_at_start.*$gdb_prompt $" {
 110                 set description "next over lim_at_start initialization"
 111                 set command "next"
 112             }
 113             -re ".*count . 0x3.*$gdb_prompt $" {
 114                 set description "next over conditional stack alignment code 1"
 115                 set command "next"
 116             }
 117             -re ".*if .i != 0.*$gdb_prompt $" {
 118                 set description "next over conditional stack alignment code 2"
 119                 set command "next"
 120             }
 121             -re ".*alloca .i - 4.*$gdb_prompt $" {
 122                 set description "next over conditional stack alignment alloca"
 123                 set command "next"
 124             }
 125             -re ".*cmdsize = 1.*$gdb_prompt $" {
 126                 set description "step over cmdsize initialization"
 127                 set command "next"
 128             }
 129             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 130                 set description "next over cmdarg initialization via xmalloc"
 131                 set command "next"
 132             }
 133             -re ".*ncmd = 0.*$gdb_prompt $" {
 134                 set description "next over ncmd initialization"
 135                 set command "next"
 136             }
 137             -re ".*dirsize = 1.*$gdb_prompt $" {
 138                 set description "next over dirsize initialization"
 139                 set command "next"
 140             }
 141             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 142                 return
 143             }
 144             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 145                 set description "next over setlocale LC_MESSAGES"
 146                 set command "next"
 147             }
 148             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 149                 set description "next over setlocale LC_CTYPE"
 150                 set command "next"
 151             }
 152             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 153                 set description "next over bindtextdomain"
 154                 set command "next"
 155             }
 156             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 157                 set description "next over textdomain PACKAGE"
 158                 set command "next"
 159             }
 160             -re "\[0-9\]*\t\{\r\n$gdb_prompt $" {
 161                 set description "step over initial brace"
 162                 set command "step"
 163             }
 164             -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
 165                 set description "step over current_directory initialization"
 166                 set command "step"
 167             }
 168             -re ".*gdb_sysroot = .*$gdb_prompt $" {
 169                 # NOTE: carlton/2003-01-15: More optimization reordering,
 170                 # observed on GCC 3.1.
 171                 set description "step over gdb_sysroot initialization"
 172                 set command "step"
 173             }
 174             -re ".*ndir = 0.*$gdb_prompt $" {
 175                 set description "step over ndir initialization"
 176                 set command "step"
 177             }
 178             -re ".*instream = stdin.*$gdb_prompt $" {
 179                 set description "step over instream initialization"
 180                 set command "step"
 181             }
 182             -re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf..;.*$gdb_prompt $" {
 183                 set description "next over getcwd"
 184                 set command "next"
 185             }
 186             -re "\[ \t\]+\{\r\n$gdb_prompt $" {
 187                 setup_xfail "mips-*-irix5*"
 188                 fail "$description ended up at odd location"
 189             }
 190             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 191                 setup_xfail "rs6000-*-aix3*"
 192                 fail "must be able to list source lines"
 193                 return
 194             }
 195             -re ".*$gdb_prompt $" {
 196                 fail "unknown source line after $description"
 197                 return
 198             }
 199             default {
 200                 fail "unknown source line near main"
 201                 return
 202             }
 203         }
 204         send_gdb "$command\n"
 205         gdb_expect {
 206             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 207                 fail "$description (no source available)"
 208             }
 209             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 210                 fail "$description (no source available)"
 211             }
 212             -re ".*$gdb_prompt $" {
 213                 pass "$description"
 214             }
 215             timeout {
 216                 fail "$description (timeout)"
 217             }
 218         }
 219     }
 220 }
 221
 222 proc test_with_self { executable } {
 223     global gdb_prompt
 224     global tool
 225     global det_file
 226     global decimal
 227     global timeout
 228
 229     # load yourself into the debugger
 230     # This can take a relatively long time, particularly for testing where
 231     # the executable is being accessed over a network, or where gdb does not
 232     # support partial symbols for a particular target and has to load the
 233     # entire symbol table.  Set the timeout to 10 minutes, which should be
 234     # adequate for most environments (it *has* timed out with 5 min on a
 235     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 236     # After gdb is started, set the timeout to 30 seconds for the duration
 237     # of this test, and then back to the original value.
 238
 239     set oldtimeout $timeout
 240     set timeout 600
 241     verbose "Timeout is now $timeout seconds" 2
 242     if {[gdb_load $executable] <0} then {
 243         set timeout $oldtimeout
 244         verbose "Timeout is now $timeout seconds" 2
 245         return -1
 246     }
 247     set timeout $oldtimeout
 248     verbose "Timeout is now $timeout seconds" 2
 249
 250     # disassemble yourself
 251     gdb_test "x/10i main" \
 252             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 253             "Disassemble main"
 254
 255     # Set a breakpoint at main
 256     gdb_test "break captured_main" \
 257             "Breakpoint.*at.* file.*, line.*" \
 258             "breakpoint in captured_main"
 259
 260     # We'll need this when we send a ^C to GDB.  Need to do it before we
 261     # run the program and gdb starts saving and restoring tty states.
 262     # On Ultrix, we don't need it and it is really slow (because shell_escape
 263     # doesn't use vfork).
 264     if ![istarget "*-*-ultrix*"] then {
 265         gdb_test "shell stty intr '^C'" "" \
 266             "set interrupt character in test_with_self"
 267     }
 268
 269     # FIXME: If we put this after the run to main, the first list
 270     # command doesn't print the same line as the current line where
 271     # gdb is stopped.
 272     gdb_test "set listsize 1" "" "set listsize to 1"
 273
 274     # run yourself
 275     # It may take a very long time for the inferior gdb to start (lynx),
 276     # so we bump it back up for the duration of this command.
 277     set timeout 600
 278
 279     set description "run until breakpoint at captured_main"
 280     send_gdb "run -nw\n"
 281     gdb_expect {
 282         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 283             pass "$description"
 284         }
 285         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 286             xfail "$description (line numbers scrambled?)"
 287         }
 288         -re "vfork: No more processes.*$gdb_prompt $" {
 289             fail "$description (out of virtual memory)"
 290             set timeout $oldtimeout
 291             verbose "Timeout is now $timeout seconds" 2
 292             return -1
 293         }
 294         -re ".*$gdb_prompt $" {
 295             fail "$description"
 296             set timeout $oldtimeout
 297             verbose "Timeout is now $timeout seconds" 2
 298             return -1
 299         }
 300         timeout {
 301             fail "$description (timeout)"
 302         }
 303     }
 304
 305     set timeout $oldtimeout
 306     verbose "Timeout is now $timeout seconds" 2
 307
 308     # do we have a version number ?
 309     send_gdb "print version\n"
 310     gdb_expect {
 311         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 312             pass "printed version as string"
 313         }
 314         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 315             pass "printed version as pointer"
 316         }
 317         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 318             pass "printed version with cast"
 319         }
 320         -re ".*$gdb_prompt $"   { fail "printed version" }
 321         timeout         { fail "(timeout) printed version" }
 322     }
 323
 324     do_steps_and_nexts
 325
 326     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 327
 328     # do_steps_and_nexts left us ready to execute an xmalloc call,
 329     # so give that a try.
 330     # If we don't actually enter the xmalloc call when we give a
 331     # step command that seems like a genuine bug.  It seems to happen
 332     # on most RISC processors.
 333     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 334     # lines, just keep stepping until we enter.
 335     set stepped_back 0
 336     setup_xfail "alpha-*-*" "mips-*-*"
 337     set description "step into xmalloc call"
 338     send_gdb "step\n"
 339     gdb_expect {
 340         -re "ncmd = 0;.*$gdb_prompt $" {
 341             set stepped_back 1
 342             send_gdb "step\n"
 343             exp_continue
 344         }
 345         -re "dirsize = 1;.*$gdb_prompt $" {
 346             set stepped_back 1
 347             send_gdb "step\n"
 348             exp_continue
 349         }
 350         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 351             if { $stepped_back == 1 } {
 352                 send_gdb "step\n"
 353                 exp_continue
 354             } else {
 355                 fail "$description"
 356             }
 357         }
 358         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 359             pass "$description"
 360         }
 361         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 362             pass "$description (no source available)"
 363         }
 364         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 365             pass "$description (no source available)"
 366         }
 367         -re ".*$gdb_prompt $" {
 368             fail "$description"
 369         }
 370         timeout {
 371             fail "$description (timeout)"
 372         }
 373     }
 374
 375     # start the "xgdb" process
 376     send_gdb "continue\n"
 377     gdb_expect {
 378         -re "GNU gdb \[0-9\.\]*.*
 379 Copyright \[0-9\]* Free Software Foundation, Inc.*
 380 GDB is free software, covered by the GNU General Public License, and you are.*
 381 welcome to change it and/or distribute copies of it under certain conditions.*
 382 Type \"show copying\" to see the conditions.*
 383 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 384 This GDB was configured as .*$gdb_prompt $"\
 385             { pass "xgdb is at prompt" }
 386         -re "GDB is free software and you are welcome to distribute copies of it.*
 387  under certain conditions; type \"show copying\" to see the conditions..*
 388 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 389 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 390             { pass "xgdb is at prompt (obsolescent gdb)" }
 391         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 392         timeout             { fail "(timeout) xgdb is at prompt" }
 393     }
 394
 395     # set xgdb prompt so we can tell which is which
 396     send_gdb "set prompt (xgdb) \n"
 397     gdb_expect {
 398         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 399         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 400         default                         { fail "(timeout) Set xgdb prompt" }
 401     }
 402
 403     # kill the xgdb process
 404     set description "send ^C to child process"
 405     send_gdb "\003"
 406     gdb_expect {
 407         -re "Program received signal SIGINT.*$gdb_prompt $" {
 408             pass "$description"
 409         }
 410         -re ".*$gdb_prompt $" {
 411             fail "$description"
 412         }
 413         timeout {
 414             fail "$description (timeout)"
 415         }
 416     }
 417
 418     set description "send SIGINT signal to child process"
 419     send_gdb "signal SIGINT\n"
 420     gdb_expect {
 421         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 422             pass "$description"
 423         }
 424         -re ".*$gdb_prompt $" {
 425             fail "$description"
 426         }
 427         timeout {
 428             fail "$description (timeout)"
 429         }
 430     }
 431
 432     # get a stack trace
 433     #
 434     # This fails on some linux systems for unknown reasons.  On the
 435     # systems where it fails, sometimes it works fine when run manually.
 436     # The testsuite failures may not be limited to just aout systems.
 437     setup_xfail "i*86-pc-linuxaout-gnu"
 438     set description "backtrace through signal handler"
 439     send_gdb "backtrace\n"
 440     gdb_expect {
 441         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 442             pass "$description"
 443         }
 444         -re ".*$gdb_prompt $" {
 445             # On the alpha, we hit the infamous problem about gdb
 446             # being unable to get the frame pointer (mentioned in
 447             # gdb/README).  As it is intermittent, there is no way to
 448             # XFAIL it which will give us an XPASS if the problem goes
 449             # away.
 450             setup_xfail "alpha*-*-osf*"
 451             fail "$description"
 452         }
 453         timeout {
 454             fail "$description (timeout)"
 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 }