gdb/testsuite/gdb.base/selftest.exp

   1 #   Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002
   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 if [istarget "m68k*-*-hpux*"] then {
  36     # The top-level makefile passes CFLAGS= (no -g) for hp300.  This probably
  37     # should be fixed (it is only needed for gcc bootstrapping, not gdb),
  38     # but until then.....
  39     setup_xfail "*-*-*"
  40     fail "cannot test self if compiled without debug info"
  41     return -1
  42 }
  43
  44 # Not all of the lines of code near the start of main are executed for
  45 # every machine.  Also, optimization may reorder some of the lines.
  46 # So all we do is try to step or next over everything until we get
  47 # to a line that we know is always executed.
  48
  49 proc do_steps_and_nexts {} {
  50     global gdb_prompt
  51     global srcdir
  52
  53     gdb_reinitialize_dir $srcdir/..
  54
  55     for {set count 0} {$count < 26} {incr count} {
  56         send_gdb "list\n"
  57         # NOTE: carlton/2002-12-11: The "initial brace" and
  58         # "current_directory initialization" possibilities happen to
  59         # me with GCC 3.1 on i686-pc-linux-gnu when I compile with
  60         # optimization.
  61         gdb_expect {
  62             -re ".*context = data.*$gdb_prompt $" {
  63                 set description "step over context initialization"
  64                 set command "step"
  65             }
  66             -re ".*argc = context->argc.*$gdb_prompt $" {
  67                 set description "step over argc initialization"
  68                 set command "step"
  69             }
  70             -re ".*argv = context->argv.*$gdb_prompt $" {
  71                 set description "step over argv initialization"
  72                 set command "step"
  73             }
  74             -re ".*quiet = 0.*$gdb_prompt $" {
  75                 set description "step over quiet initialization"
  76                 set command "step"
  77             }
  78             -re ".*batch = 0.*$gdb_prompt $" {
  79                 set description "step over batch initialization"
  80                 set command "step"
  81             }
  82             -re ".*symarg = NULL.*$gdb_prompt $" {
  83                 set description "step over symarg initialization"
  84                 set command "step"
  85             }
  86             -re ".*execarg = NULL.*$gdb_prompt $" {
  87                 set description "step over execarg initialization"
  88                 set command "step"
  89             }
  90             -re ".*corearg = NULL.*$gdb_prompt $" {
  91                 set description "step over corearg initialization"
  92                 set command "step"
  93             }
  94             -re ".*cdarg = NULL.*$gdb_prompt $" {
  95                 set description "step over cdarg initialization"
  96                 set command "step"
  97             }
  98             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  99                 set description "step over ttyarg initialization"
 100                 set command "step"
 101             }
 102             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
 103                 set description "next over get_run_time and everything it calls"
 104                 set command "next"
 105             }
 106             -re ".*START_PROGRESS.*$gdb_prompt $" {
 107                 set description "next over START_PROGRESS and everything it calls"
 108                 set command "next"
 109             }
 110             -re ".*mac_init.*$gdb_prompt $" {
 111                 set description "next over mac_init and everything it calls"
 112                 set command "next"
 113             }
 114             -re ".*init_malloc.*$gdb_prompt $" {
 115                 set description "next over init_malloc and everything it calls"
 116                 set command "next"
 117             }
 118             -re ".*count . 0x3.*$gdb_prompt $" {
 119                 set description "next over conditional stack alignment code 1"
 120                 set command "next"
 121             }
 122             -re ".*if .i != 0.*$gdb_prompt $" {
 123                 set description "next over conditional stack alignment code 2"
 124                 set command "next"
 125             }
 126             -re ".*alloca .i - 4.*$gdb_prompt $" {
 127                 set description "next over conditional stack alignment alloca"
 128                 set command "next"
 129             }
 130             -re ".*cmdsize = 1.*$gdb_prompt $" {
 131                 set description "step over cmdsize initialization"
 132                 set command "next"
 133             }
 134             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 135                 set description "next over cmdarg initialization via xmalloc"
 136                 set command "next"
 137             }
 138             -re ".*ncmd = 0.*$gdb_prompt $" {
 139                 set description "next over ncmd initialization"
 140                 set command "next"
 141             }
 142             -re ".*dirsize = 1.*$gdb_prompt $" {
 143                 set description "next over dirsize initialization"
 144                 set command "next"
 145             }
 146             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 147                 return
 148             }
 149             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 150                 set description "next over setlocale LC_MESSAGES"
 151                 set command "next"
 152             }
 153             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 154                 set description "next over setlocale LC_CTYPE"
 155                 set command "next"
 156             }
 157             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 158                 set description "next over bindtextdomain"
 159                 set command "next"
 160             }
 161             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 162                 set description "next over textdomain PACKAGE"
 163                 set command "next"
 164             }
 165             -re "\[0-9\]*\t\{\r\n$gdb_prompt $" {
 166                 set description "step over initial brace"
 167                 set command "step"
 168             }
 169             -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
 170                 set description "step over current_directory initialization"
 171                 set command "step"
 172             }
 173             -re ".*gdb_sysroot = .*$gdb_prompt $" {
 174                 # NOTE: carlton/2003-01-15: More optimization reordering,
 175                 # observed on GCC 3.1.
 176                 set description "step over gdb_sysroot initialization"
 177                 set command "step"
 178             }
 179             -re "\[ \t\]+\{\r\n$gdb_prompt $" {
 180                 setup_xfail "mips-*-irix5*"
 181                 fail "$description ended up at odd location"
 182             }
 183             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 184                 setup_xfail "rs6000-*-aix3*"
 185                 fail "must be able to list source lines"
 186                 return
 187             }
 188             -re ".*$gdb_prompt $" {
 189                 fail "unknown source line after $description"
 190                 return
 191             }
 192             default {
 193                 fail "unknown source line near main"
 194                 return
 195             }
 196         }
 197         send_gdb "$command\n"
 198         gdb_expect {
 199             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 200                 fail "$description (no source available)"
 201             }
 202             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 203                 fail "$description (no source available)"
 204             }
 205             -re ".*$gdb_prompt $" {
 206                 pass "$description"
 207             }
 208             timeout {
 209                 fail "$description (timeout)"
 210             }
 211         }
 212     }
 213 }
 214
 215 proc test_with_self { executable } {
 216     global gdb_prompt
 217     global tool
 218     global det_file
 219     global decimal
 220     global timeout
 221
 222     # load yourself into the debugger
 223     # This can take a relatively long time, particularly for testing where
 224     # the executable is being accessed over a network, or where gdb does not
 225     # support partial symbols for a particular target and has to load the
 226     # entire symbol table.  Set the timeout to 10 minutes, which should be
 227     # adequate for most environments (it *has* timed out with 5 min on a
 228     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 229     # After gdb is started, set the timeout to 30 seconds for the duration
 230     # of this test, and then back to the original value.
 231
 232     set oldtimeout $timeout
 233     set timeout 600
 234     verbose "Timeout is now $timeout seconds" 2
 235     if {[gdb_load $executable] <0} then {
 236         set timeout $oldtimeout
 237         verbose "Timeout is now $timeout seconds" 2
 238         return -1
 239     }
 240     set timeout $oldtimeout
 241     verbose "Timeout is now $timeout seconds" 2
 242
 243     # disassemble yourself
 244     gdb_test "x/10i main" \
 245             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 246             "Disassemble main"
 247
 248     # Set a breakpoint at main
 249     gdb_test "break captured_main" \
 250             "Breakpoint.*at.* file.*, line.*" \
 251             "breakpoint in captured_main"
 252
 253     # We'll need this when we send a ^C to GDB.  Need to do it before we
 254     # run the program and gdb starts saving and restoring tty states.
 255     # On Ultrix, we don't need it and it is really slow (because shell_escape
 256     # doesn't use vfork).
 257     if ![istarget "*-*-ultrix*"] then {
 258         gdb_test "shell stty intr '^C'" "" \
 259             "set interrupt character in test_with_self"
 260     }
 261
 262     # FIXME: If we put this after the run to main, the first list
 263     # command doesn't print the same line as the current line where
 264     # gdb is stopped.
 265     gdb_test "set listsize 1" "" "set listsize to 1"
 266
 267     # run yourself
 268     # It may take a very long time for the inferior gdb to start (lynx),
 269     # so we bump it back up for the duration of this command.
 270     set timeout 600
 271
 272     set description "run until breakpoint at captured_main"
 273     send_gdb "run -nw\n"
 274     gdb_expect {
 275         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 276             pass "$description"
 277         }
 278         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 279             xfail "$description (line numbers scrambled?)"
 280         }
 281         -re "vfork: No more processes.*$gdb_prompt $" {
 282             fail "$description (out of virtual memory)"
 283             set timeout $oldtimeout
 284             verbose "Timeout is now $timeout seconds" 2
 285             return -1
 286         }
 287         -re ".*$gdb_prompt $" {
 288             fail "$description"
 289             set timeout $oldtimeout
 290             verbose "Timeout is now $timeout seconds" 2
 291             return -1
 292         }
 293         timeout {
 294             fail "$description (timeout)"
 295         }
 296     }
 297
 298     set timeout $oldtimeout
 299     verbose "Timeout is now $timeout seconds" 2
 300
 301     # do we have a version number ?
 302     send_gdb "print version\n"
 303     gdb_expect {
 304         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 305             pass "printed version as string"
 306         }
 307         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 308             pass "printed version as pointer"
 309         }
 310         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 311             pass "printed version with cast"
 312         }
 313         -re ".*$gdb_prompt $"   { fail "printed version" }
 314         timeout         { fail "(timeout) printed version" }
 315     }
 316
 317     do_steps_and_nexts
 318
 319     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 320
 321     # do_steps_and_nexts left us ready to execute an xmalloc call,
 322     # so give that a try.
 323     # If we don't actually enter the xmalloc call when we give a
 324     # step command that seems like a genuine bug.  It seems to happen
 325     # on most RISC processors.
 326     setup_xfail "alpha-*-*" "mips-*-*"
 327     set description "step into xmalloc call"
 328     send_gdb "step\n"
 329     gdb_expect {
 330         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 331             pass "$description"
 332         }
 333         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 334             pass "$description (no source available)"
 335         }
 336         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 337             pass "$description (no source available)"
 338         }
 339         -re ".*$gdb_prompt $" {
 340             fail "$description"
 341         }
 342         timeout {
 343             fail "$description (timeout)"
 344         }
 345     }
 346
 347     # start the "xgdb" process
 348     send_gdb "continue\n"
 349     gdb_expect {
 350         -re "GNU gdb \[0-9\.\]*.*
 351 Copyright \[0-9\]* Free Software Foundation, Inc.*
 352 GDB is free software, covered by the GNU General Public License, and you are.*
 353 welcome to change it and/or distribute copies of it under certain conditions.*
 354 Type \"show copying\" to see the conditions.*
 355 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 356 This GDB was configured as .*$gdb_prompt $"\
 357             { pass "xgdb is at prompt" }
 358         -re "GDB is free software and you are welcome to distribute copies of it.*
 359  under certain conditions; type \"show copying\" to see the conditions..*
 360 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 361 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 362             { pass "xgdb is at prompt (obsolescent gdb)" }
 363         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 364         timeout             { fail "(timeout) xgdb is at prompt" }
 365     }
 366
 367     # set xgdb prompt so we can tell which is which
 368     send_gdb "set prompt (xgdb) \n"
 369     gdb_expect {
 370         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 371         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 372         default                         { fail "(timeout) Set xgdb prompt" }
 373     }
 374
 375     # kill the xgdb process
 376     set description "send ^C to child process"
 377     send_gdb "\003"
 378     gdb_expect {
 379         -re "Program received signal SIGINT.*$gdb_prompt $" {
 380             pass "$description"
 381         }
 382         -re ".*$gdb_prompt $" {
 383             fail "$description"
 384         }
 385         timeout {
 386             fail "$description (timeout)"
 387         }
 388     }
 389
 390     set description "send SIGINT signal to child process"
 391     send_gdb "signal SIGINT\n"
 392     gdb_expect {
 393         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 394             pass "$description"
 395         }
 396         -re ".*$gdb_prompt $" {
 397             fail "$description"
 398         }
 399         timeout {
 400             fail "$description (timeout)"
 401         }
 402     }
 403
 404     # get a stack trace
 405     #
 406     # This fails on some linux systems for unknown reasons.  On the
 407     # systems where it fails, sometimes it works fine when run manually.
 408     # The testsuite failures may not be limited to just aout systems.
 409     setup_xfail "i*86-pc-linuxaout-gnu"
 410     set description "backtrace through signal handler"
 411     send_gdb "backtrace\n"
 412     gdb_expect {
 413         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 414             pass "$description"
 415         }
 416         -re ".*$gdb_prompt $" {
 417             # On the alpha, we hit the infamous problem about gdb
 418             # being unable to get the frame pointer (mentioned in
 419             # gdb/README).  As it is intermittent, there is no way to
 420             # XFAIL it which will give us an XPASS if the problem goes
 421             # away.
 422             setup_xfail "alpha*-*-osf*"
 423             fail "$description"
 424         }
 425         timeout {
 426             fail "$description (timeout)"
 427         }
 428     }
 429
 430
 431     # Set the timeout back to the value it had when we were called.
 432     set timeout $oldtimeout
 433     verbose "Timeout is now $timeout seconds" 2
 434
 435     # Restart gdb in case next test expects it to be started already.
 436     return 0
 437 }
 438
 439 # Find a pathname to a file that we would execute if the shell was asked
 440 # to run $arg using the current PATH.
 441
 442 proc find_gdb { arg } {
 443
 444     # If the arg directly specifies an existing executable file, then
 445     # simply use it.
 446
 447     if [file executable $arg] then {
 448         return $arg
 449     }
 450
 451     set result [which $arg]
 452     if [string match "/" [ string range $result 0 0 ]] then {
 453         return $result
 454     }
 455
 456     # If everything fails, just return the unqualified pathname as default
 457     # and hope for best.
 458
 459     return $arg
 460 }
 461
 462 # Run the test with self.
 463 # Copy the file executable file in case this OS doesn't like to edit its own
 464 # text space.
 465
 466 set GDB_FULLPATH [find_gdb $GDB]
 467
 468 # Remove any old copy lying around.
 469 remote_file host delete x$tool
 470
 471 gdb_start
 472 set file [remote_download host $GDB_FULLPATH x$tool]
 473 set result [test_with_self $file];
 474 gdb_exit;
 475 catch "remote_file host delete $file";
 476
 477 if {$result <0} then {
 478     warning "Couldn't test self"
 479     return -1
 480 }