gdb/testsuite/gdb.gdb/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 $" {
  98                 # Note: ezannoni/2004/02/17: This check should be
  99                 # removed, since as of today that source line is not
 100                 # in gdb anymore.
 101                 set description "next over START_PROGRESS and everything it calls"
 102                 set command "next"
 103             }
 104             -re ".*mac_init.*$gdb_prompt $" {
 105                 set description "next over mac_init and everything it calls"
 106                 set command "next"
 107             }
 108             -re ".*lim_at_start.*$gdb_prompt $" {
 109                 set description "next over lim_at_start initialization"
 110                 set command "next"
 111             }
 112             -re ".*count . 0x3.*$gdb_prompt $" {
 113                 set description "next over conditional stack alignment code 1"
 114                 set command "next"
 115             }
 116             -re ".*if .i != 0.*$gdb_prompt $" {
 117                 set description "next over conditional stack alignment code 2"
 118                 set command "next"
 119             }
 120             -re ".*alloca .i - 4.*$gdb_prompt $" {
 121                 set description "next over conditional stack alignment alloca"
 122                 set command "next"
 123             }
 124             -re ".*cmdsize = 1.*$gdb_prompt $" {
 125                 set description "step over cmdsize initialization"
 126                 set command "next"
 127             }
 128             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 129                 set description "next over cmdarg initialization via xmalloc"
 130                 set command "next"
 131             }
 132             -re ".*ncmd = 0.*$gdb_prompt $" {
 133                 set description "next over ncmd initialization"
 134                 set command "next"
 135             }
 136             -re ".*dirsize = 1.*$gdb_prompt $" {
 137                 set description "next over dirsize initialization"
 138                 set command "next"
 139             }
 140             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 141                 return
 142             }
 143             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 144                 set description "next over setlocale LC_MESSAGES"
 145                 set command "next"
 146             }
 147             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 148                 set description "next over setlocale LC_CTYPE"
 149                 set command "next"
 150             }
 151             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 152                 set description "next over bindtextdomain"
 153                 set command "next"
 154             }
 155             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 156                 set description "next over textdomain PACKAGE"
 157                 set command "next"
 158             }
 159             -re "\[0-9\]*\t\{\r\n$gdb_prompt $" {
 160                 set description "step over initial brace"
 161                 set command "step"
 162             }
 163             -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
 164                 set description "step over current_directory initialization"
 165                 set command "step"
 166             }
 167             -re ".*gdb_sysroot = .*$gdb_prompt $" {
 168                 # NOTE: carlton/2003-01-15: More optimization reordering,
 169                 # observed on GCC 3.1.
 170                 set description "step over gdb_sysroot initialization"
 171                 set command "step"
 172             }
 173             -re ".*ndir = 0.*$gdb_prompt $" {
 174                 set description "step over ndir initialization"
 175                 set command "step"
 176             }
 177             -re ".*instream = stdin.*$gdb_prompt $" {
 178                 set description "step over instream initialization"
 179                 set command "step"
 180             }
 181             -re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf..;.*$gdb_prompt $" {
 182                 set description "next over getcwd"
 183                 set command "next"
 184             }
 185             -re "\[ \t\]+\{\r\n$gdb_prompt $" {
 186                 setup_xfail "mips-*-irix5*"
 187                 fail "$description ended up at odd location"
 188             }
 189             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 190                 setup_xfail "rs6000-*-aix3*"
 191                 fail "must be able to list source lines"
 192                 return
 193             }
 194             -re ".*$gdb_prompt $" {
 195                 fail "unknown source line after $description"
 196                 return
 197             }
 198             default {
 199                 fail "unknown source line near main"
 200                 return
 201             }
 202         }
 203         send_gdb "$command\n"
 204         gdb_expect {
 205             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 206                 fail "$description (no source available)"
 207             }
 208             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 209                 fail "$description (no source available)"
 210             }
 211             -re ".*$gdb_prompt $" {
 212                 pass "$description"
 213             }
 214             timeout {
 215                 fail "$description (timeout)"
 216             }
 217         }
 218     }
 219 }
 220
 221 proc test_with_self { executable } {
 222     global gdb_prompt
 223     global tool
 224     global det_file
 225     global decimal
 226     global timeout
 227
 228     # load yourself into the debugger
 229     # This can take a relatively long time, particularly for testing where
 230     # the executable is being accessed over a network, or where gdb does not
 231     # support partial symbols for a particular target and has to load the
 232     # entire symbol table.  Set the timeout to 10 minutes, which should be
 233     # adequate for most environments (it *has* timed out with 5 min on a
 234     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 235     # After gdb is started, set the timeout to 30 seconds for the duration
 236     # of this test, and then back to the original value.
 237
 238     set oldtimeout $timeout
 239     set timeout 600
 240     verbose "Timeout is now $timeout seconds" 2
 241     if {[gdb_load $executable] <0} then {
 242         set timeout $oldtimeout
 243         verbose "Timeout is now $timeout seconds" 2
 244         return -1
 245     }
 246     set timeout $oldtimeout
 247     verbose "Timeout is now $timeout seconds" 2
 248
 249     # disassemble yourself
 250     gdb_test "x/10i main" \
 251             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 252             "Disassemble main"
 253
 254     # Set a breakpoint at main
 255     gdb_test "break captured_main" \
 256             "Breakpoint.*at.* file.*, line.*" \
 257             "breakpoint in captured_main"
 258
 259     # We'll need this when we send a ^C to GDB.  Need to do it before we
 260     # run the program and gdb starts saving and restoring tty states.
 261     # On Ultrix, we don't need it and it is really slow (because shell_escape
 262     # doesn't use vfork).
 263     if ![istarget "*-*-ultrix*"] then {
 264         gdb_test "shell stty intr '^C'" "" \
 265             "set interrupt character in test_with_self"
 266     }
 267
 268     # FIXME: If we put this after the run to main, the first list
 269     # command doesn't print the same line as the current line where
 270     # gdb is stopped.
 271     gdb_test "set listsize 1" "" "set listsize to 1"
 272
 273     # run yourself
 274     # It may take a very long time for the inferior gdb to start (lynx),
 275     # so we bump it back up for the duration of this command.
 276     set timeout 600
 277
 278     set description "run until breakpoint at captured_main"
 279     send_gdb "run -nw\n"
 280     gdb_expect {
 281         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 282             pass "$description"
 283         }
 284         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 285             xfail "$description (line numbers scrambled?)"
 286         }
 287         -re "vfork: No more processes.*$gdb_prompt $" {
 288             fail "$description (out of virtual memory)"
 289             set timeout $oldtimeout
 290             verbose "Timeout is now $timeout seconds" 2
 291             return -1
 292         }
 293         -re ".*$gdb_prompt $" {
 294             fail "$description"
 295             set timeout $oldtimeout
 296             verbose "Timeout is now $timeout seconds" 2
 297             return -1
 298         }
 299         timeout {
 300             fail "$description (timeout)"
 301         }
 302     }
 303
 304     set timeout $oldtimeout
 305     verbose "Timeout is now $timeout seconds" 2
 306
 307     # do we have a version number ?
 308     send_gdb "print version\n"
 309     gdb_expect {
 310         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 311             pass "printed version as string"
 312         }
 313         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 314             pass "printed version as pointer"
 315         }
 316         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 317             pass "printed version with cast"
 318         }
 319         -re ".*$gdb_prompt $"   { fail "printed version" }
 320         timeout         { fail "(timeout) printed version" }
 321     }
 322
 323     do_steps_and_nexts
 324
 325     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 326
 327     # do_steps_and_nexts left us ready to execute an xmalloc call,
 328     # so give that a try.
 329     # If we don't actually enter the xmalloc call when we give a
 330     # step command that seems like a genuine bug.  It seems to happen
 331     # on most RISC processors.
 332     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 333     # lines, just keep stepping until we enter.
 334     set stepped_back 0
 335     setup_xfail "alpha-*-*" "mips-*-*"
 336     set description "step into xmalloc call"
 337     send_gdb "step\n"
 338     gdb_expect {
 339         -re "ncmd = 0;.*$gdb_prompt $" {
 340             set stepped_back 1
 341             send_gdb "step\n"
 342             exp_continue
 343         }
 344         -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 345             set stepped_back 1
 346             send_gdb "step\n"
 347             exp_continue
 348         }
 349         -re "dirsize = 1;.*$gdb_prompt $" {
 350             set stepped_back 1
 351             send_gdb "step\n"
 352             exp_continue
 353         }
 354         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 355             if { $stepped_back == 1 } {
 356                 send_gdb "step\n"
 357                 exp_continue
 358             } else {
 359                 fail "$description"
 360             }
 361         }
 362         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 363             pass "$description"
 364         }
 365         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 366             pass "$description (no source available)"
 367         }
 368         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 369             pass "$description (no source available)"
 370         }
 371         -re ".*$gdb_prompt $" {
 372             fail "$description"
 373         }
 374         timeout {
 375             fail "$description (timeout)"
 376         }
 377     }
 378
 379     # start the "xgdb" process
 380     send_gdb "continue\n"
 381     gdb_expect {
 382         -re "GNU gdb \[0-9\.\]*.*
 383 Copyright \[0-9\]* Free Software Foundation, Inc.*
 384 GDB is free software, covered by the GNU General Public License, and you are.*
 385 welcome to change it and/or distribute copies of it under certain conditions.*
 386 Type \"show copying\" to see the conditions.*
 387 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 388 This GDB was configured as .*$gdb_prompt $"\
 389             { pass "xgdb is at prompt" }
 390         -re "GDB is free software and you are welcome to distribute copies of it.*
 391  under certain conditions; type \"show copying\" to see the conditions..*
 392 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 393 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 394             { pass "xgdb is at prompt (obsolescent gdb)" }
 395         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 396         timeout             { fail "(timeout) xgdb is at prompt" }
 397     }
 398
 399     # set xgdb prompt so we can tell which is which
 400     send_gdb "set prompt (xgdb) \n"
 401     gdb_expect {
 402         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 403         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 404         default                         { fail "(timeout) Set xgdb prompt" }
 405     }
 406
 407     # kill the xgdb process
 408     set description "send ^C to child process"
 409     send_gdb "\003"
 410     gdb_expect {
 411         -re "Program received signal SIGINT.*$gdb_prompt $" {
 412             pass "$description"
 413         }
 414         -re ".*$gdb_prompt $" {
 415             fail "$description"
 416         }
 417         timeout {
 418             fail "$description (timeout)"
 419         }
 420     }
 421
 422     set description "send SIGINT signal to child process"
 423     send_gdb "signal SIGINT\n"
 424     gdb_expect {
 425         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 426             pass "$description"
 427         }
 428         -re ".*$gdb_prompt $" {
 429             fail "$description"
 430         }
 431         timeout {
 432             fail "$description (timeout)"
 433         }
 434     }
 435
 436     # get a stack trace
 437     #
 438     # This fails on some linux systems for unknown reasons.  On the
 439     # systems where it fails, sometimes it works fine when run manually.
 440     # The testsuite failures may not be limited to just aout systems.
 441     setup_xfail "i*86-pc-linuxaout-gnu"
 442     set description "backtrace through signal handler"
 443     send_gdb "backtrace\n"
 444     gdb_expect {
 445         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 446             pass "$description"
 447         }
 448         -re ".*$gdb_prompt $" {
 449             # On the alpha, we hit the infamous problem about gdb
 450             # being unable to get the frame pointer (mentioned in
 451             # gdb/README).  As it is intermittent, there is no way to
 452             # XFAIL it which will give us an XPASS if the problem goes
 453             # away.
 454             setup_xfail "alpha*-*-osf*"
 455             fail "$description"
 456         }
 457         timeout {
 458             fail "$description (timeout)"
 459         }
 460     }
 461
 462
 463     # Set the timeout back to the value it had when we were called.
 464     set timeout $oldtimeout
 465     verbose "Timeout is now $timeout seconds" 2
 466
 467     # Restart gdb in case next test expects it to be started already.
 468     return 0
 469 }
 470
 471 # Find a pathname to a file that we would execute if the shell was asked
 472 # to run $arg using the current PATH.
 473
 474 proc find_gdb { arg } {
 475
 476     # If the arg directly specifies an existing executable file, then
 477     # simply use it.
 478
 479     if [file executable $arg] then {
 480         return $arg
 481     }
 482
 483     set result [which $arg]
 484     if [string match "/" [ string range $result 0 0 ]] then {
 485         return $result
 486     }
 487
 488     # If everything fails, just return the unqualified pathname as default
 489     # and hope for best.
 490
 491     return $arg
 492 }
 493
 494 # Run the test with self.
 495 # Copy the file executable file in case this OS doesn't like to edit its own
 496 # text space.
 497
 498 set GDB_FULLPATH [find_gdb $GDB]
 499
 500 # Remove any old copy lying around.
 501 remote_file host delete x$tool
 502
 503 gdb_start
 504 set file [remote_download host $GDB_FULLPATH x$tool]
 505 set result [test_with_self $file];
 506 gdb_exit;
 507 catch "remote_file host delete $file";
 508
 509 if {$result <0} then {
 510     warning "Couldn't test self"
 511     return -1
 512 }