gdb/testsuite/gdb.gdb/selftest.exp

   1 # Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002,
   2 # 2003, 2004 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] {
  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 $srcdir/..
  42
  43     for {set count 0} {$count < 32} {incr count} {
  44         send_gdb "list\n"
  45         # NOTE: carlton/2002-12-11: The "initial brace" and
  46         # "current_directory initialization" possibilities happen to
  47         # me with GCC 3.1 on i686-pc-linux-gnu when I compile with
  48         # optimization.
  49         gdb_expect {
  50             -re ".*context = data.*$gdb_prompt $" {
  51                 set description "step over context initialization"
  52                 set command "step"
  53             }
  54             -re ".*argc = context->argc.*$gdb_prompt $" {
  55                 set description "step over argc initialization"
  56                 set command "step"
  57             }
  58             -re ".*argv = context->argv.*$gdb_prompt $" {
  59                 set description "step over argv initialization"
  60                 set command "step"
  61             }
  62             -re ".*quiet = 0.*$gdb_prompt $" {
  63                 set description "step over quiet initialization"
  64                 set command "step"
  65             }
  66             -re ".*batch = 0.*$gdb_prompt $" {
  67                 set description "step over batch initialization"
  68                 set command "step"
  69             }
  70             -re ".*symarg = NULL.*$gdb_prompt $" {
  71                 set description "step over symarg initialization"
  72                 set command "step"
  73             }
  74             -re ".*execarg = NULL.*$gdb_prompt $" {
  75                 set description "step over execarg initialization"
  76                 set command "step"
  77             }
  78             -re ".*corearg = NULL.*$gdb_prompt $" {
  79                 set description "step over corearg initialization"
  80                 set command "step"
  81             }
  82             -re ".*cdarg = NULL.*$gdb_prompt $" {
  83                 set description "step over cdarg initialization"
  84                 set command "step"
  85             }
  86             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  87                 set description "step over ttyarg initialization"
  88                 set command "step"
  89             }
  90             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
  91                 set description "next over get_run_time and everything it calls"
  92                 set command "next"
  93             }
  94             -re ".*START_PROGRESS.*$gdb_prompt $" {
  95                 # Note: ezannoni/2004/02/17: This check should be
  96                 # removed, since as of today that source line is not
  97                 # in gdb anymore.
  98                 set description "next over START_PROGRESS and everything it calls"
  99                 set command "next"
 100             }
 101             -re ".*mac_init.*$gdb_prompt $" {
 102                 set description "next over mac_init and everything it calls"
 103                 set command "next"
 104             }
 105             -re ".*init_malloc.*$gdb_prompt $" {
 106                 # gdb 6.2.X is the last gdb which called init_malloc
 107                 set description "next over init_malloc and everything it calls"
 108                 set command "next"
 109             }
 110             -re ".*lim_at_start.*$gdb_prompt $" {
 111                 set description "next over lim_at_start initialization"
 112                 set command "next"
 113             }
 114             -re ".*count . 0x3.*$gdb_prompt $" {
 115                 set description "next over conditional stack alignment code 1"
 116                 set command "next"
 117             }
 118             -re ".*if .i != 0.*$gdb_prompt $" {
 119                 set description "next over conditional stack alignment code 2"
 120                 set command "next"
 121             }
 122             -re ".*alloca .i - 4.*$gdb_prompt $" {
 123                 set description "next over conditional stack alignment alloca"
 124                 set command "next"
 125             }
 126             -re ".*cmdsize = 1.*$gdb_prompt $" {
 127                 set description "step over cmdsize initialization"
 128                 set command "next"
 129             }
 130             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 131                 set description "next over cmdarg initialization via xmalloc"
 132                 set command "next"
 133             }
 134             -re ".*ncmd = 0.*$gdb_prompt $" {
 135                 set description "next over ncmd initialization"
 136                 set command "next"
 137             }
 138             -re ".*dirsize = 1.*$gdb_prompt $" {
 139                 set description "next over dirsize initialization"
 140                 set command "next"
 141             }
 142             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 143                 return
 144             }
 145             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 146                 set description "next over setlocale LC_MESSAGES"
 147                 set command "next"
 148             }
 149             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 150                 set description "next over setlocale LC_CTYPE"
 151                 set command "next"
 152             }
 153             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 154                 set description "next over bindtextdomain"
 155                 set command "next"
 156             }
 157             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 158                 set description "next over textdomain PACKAGE"
 159                 set command "next"
 160             }
 161             -re "\[0-9\]*\t\{\r\n$gdb_prompt $" {
 162                 set description "step over initial brace"
 163                 set command "step"
 164             }
 165             -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
 166                 set description "step over current_directory initialization"
 167                 set command "step"
 168             }
 169             -re ".*gdb_sysroot = .*$gdb_prompt $" {
 170                 # NOTE: carlton/2003-01-15: More optimization reordering,
 171                 # observed on GCC 3.1.
 172                 set description "step over gdb_sysroot initialization"
 173                 set command "step"
 174             }
 175             -re ".*ndir = 0.*$gdb_prompt $" {
 176                 set description "step over ndir initialization"
 177                 set command "step"
 178             }
 179             -re ".*instream = stdin.*$gdb_prompt $" {
 180                 set description "step over instream initialization"
 181                 set command "step"
 182             }
 183             -re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf..;.*$gdb_prompt $" {
 184                 set description "next over getcwd"
 185                 set command "next"
 186             }
 187             -re "\[ \t\]+\{\r\n$gdb_prompt $" {
 188                 setup_xfail "mips-*-irix5*"
 189                 fail "$description ended up at odd location"
 190             }
 191             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 192                 setup_xfail "rs6000-*-aix3*"
 193                 fail "must be able to list source lines"
 194                 return
 195             }
 196             -re ".*$gdb_prompt $" {
 197                 fail "unknown source line after $description"
 198                 return
 199             }
 200             default {
 201                 fail "unknown source line near main"
 202                 return
 203             }
 204         }
 205         send_gdb "$command\n"
 206         gdb_expect {
 207             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 208                 fail "$description (no source available)"
 209             }
 210             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 211                 fail "$description (no source available)"
 212             }
 213             -re ".*$gdb_prompt $" {
 214                 pass "$description"
 215             }
 216             timeout {
 217                 fail "$description (timeout)"
 218             }
 219         }
 220     }
 221 }
 222
 223 proc test_with_self { executable } {
 224     global gdb_prompt
 225     global tool
 226     global det_file
 227     global decimal
 228     global timeout
 229
 230     # load yourself into the debugger
 231     # This can take a relatively long time, particularly for testing where
 232     # the executable is being accessed over a network, or where gdb does not
 233     # support partial symbols for a particular target and has to load the
 234     # entire symbol table.  Set the timeout to 10 minutes, which should be
 235     # adequate for most environments (it *has* timed out with 5 min on a
 236     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 237     # After gdb is started, set the timeout to 30 seconds for the duration
 238     # of this test, and then back to the original value.
 239
 240     set oldtimeout $timeout
 241     set timeout 600
 242     verbose "Timeout is now $timeout seconds" 2
 243
 244     set result [gdb_load $executable]
 245     set timeout $oldtimeout
 246     verbose "Timeout is now $timeout seconds" 2
 247
 248     if { [lindex $result 0] != "" } then {
 249         return -1
 250     } else {
 251         if { [lsearch -exact [lrange $result 1 end] "nodebug"] >= 0 } then {
 252             untested "No debug information, skipping testcase."
 253             return -1
 254         }
 255     }
 256
 257     # disassemble yourself
 258     gdb_test "x/10i main" \
 259             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 260             "Disassemble main"
 261
 262     # Set a breakpoint at main
 263     gdb_test "break captured_main" \
 264             "Breakpoint.*at.* file.*, line.*" \
 265             "breakpoint in captured_main"
 266
 267     # We'll need this when we send a ^C to GDB.  Need to do it before we
 268     # run the program and gdb starts saving and restoring tty states.
 269     # On Ultrix, we don't need it and it is really slow (because shell_escape
 270     # doesn't use vfork).
 271     if ![istarget "*-*-ultrix*"] then {
 272         gdb_test "shell stty intr '^C'" "" \
 273             "set interrupt character in test_with_self"
 274     }
 275
 276     # FIXME: If we put this after the run to main, the first list
 277     # command doesn't print the same line as the current line where
 278     # gdb is stopped.
 279     gdb_test "set listsize 1" "" "set listsize to 1"
 280
 281     # run yourself
 282     # It may take a very long time for the inferior gdb to start (lynx),
 283     # so we bump it back up for the duration of this command.
 284     set timeout 600
 285
 286     set description "run until breakpoint at captured_main"
 287     send_gdb "run -nw\n"
 288     gdb_expect {
 289         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 290             pass "$description"
 291         }
 292         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 293             xfail "$description (line numbers scrambled?)"
 294         }
 295         -re "vfork: No more processes.*$gdb_prompt $" {
 296             fail "$description (out of virtual memory)"
 297             set timeout $oldtimeout
 298             verbose "Timeout is now $timeout seconds" 2
 299             return -1
 300         }
 301         -re ".*$gdb_prompt $" {
 302             fail "$description"
 303             set timeout $oldtimeout
 304             verbose "Timeout is now $timeout seconds" 2
 305             return -1
 306         }
 307         timeout {
 308             fail "$description (timeout)"
 309         }
 310     }
 311
 312     set timeout $oldtimeout
 313     verbose "Timeout is now $timeout seconds" 2
 314
 315     # do we have a version number ?
 316     send_gdb "print version\n"
 317     gdb_expect {
 318         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 319             pass "printed version as string"
 320         }
 321         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 322             pass "printed version as pointer"
 323         }
 324         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 325             pass "printed version with cast"
 326         }
 327         -re ".*$gdb_prompt $"   { fail "printed version" }
 328         timeout         { fail "(timeout) printed version" }
 329     }
 330
 331     do_steps_and_nexts
 332
 333     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 334
 335     # do_steps_and_nexts left us ready to execute an xmalloc call,
 336     # so give that a try.
 337     # If we don't actually enter the xmalloc call when we give a
 338     # step command that seems like a genuine bug.  It seems to happen
 339     # on most RISC processors.
 340     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 341     # lines, just keep stepping until we enter.
 342     set stepped_back 0
 343     setup_xfail "alpha-*-*" "mips-*-*"
 344     set description "step into xmalloc call"
 345     send_gdb "step\n"
 346     gdb_expect {
 347         -re "ncmd = 0;.*$gdb_prompt $" {
 348             set stepped_back 1
 349             send_gdb "step\n"
 350             exp_continue
 351         }
 352         -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 353             set stepped_back 1
 354             send_gdb "step\n"
 355             exp_continue
 356         }
 357         -re "dirsize = 1;.*$gdb_prompt $" {
 358             set stepped_back 1
 359             send_gdb "step\n"
 360             exp_continue
 361         }
 362         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 363             if { $stepped_back == 1 } {
 364                 send_gdb "step\n"
 365                 exp_continue
 366             } else {
 367                 fail "$description"
 368             }
 369         }
 370         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 371             pass "$description"
 372         }
 373         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 374             pass "$description (no source available)"
 375         }
 376         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 377             pass "$description (no source available)"
 378         }
 379         -re ".*$gdb_prompt $" {
 380             fail "$description"
 381         }
 382         timeout {
 383             fail "$description (timeout)"
 384         }
 385     }
 386
 387     # start the "xgdb" process
 388     send_gdb "continue\n"
 389     gdb_expect {
 390         -re "GNU gdb \[0-9\.\]*.*
 391 Copyright \[0-9\]* Free Software Foundation, Inc.*
 392 GDB is free software, covered by the GNU General Public License, and you are.*
 393 welcome to change it and/or distribute copies of it under certain conditions.*
 394 Type \"show copying\" to see the conditions.*
 395 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 396 This GDB was configured as .*$gdb_prompt $"\
 397             { pass "xgdb is at prompt" }
 398         -re "GDB is free software and you are welcome to distribute copies of it.*
 399  under certain conditions; type \"show copying\" to see the conditions..*
 400 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 401 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 402             { pass "xgdb is at prompt (obsolescent gdb)" }
 403         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 404         timeout             { fail "(timeout) xgdb is at prompt" }
 405     }
 406
 407     # set xgdb prompt so we can tell which is which
 408     send_gdb "set prompt (xgdb) \n"
 409     gdb_expect {
 410         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 411         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 412         default                         { fail "(timeout) Set xgdb prompt" }
 413     }
 414
 415     # kill the xgdb process
 416     set description "send ^C to child process"
 417     send_gdb "\003"
 418     gdb_expect {
 419         -re "Program received signal SIGINT.*$gdb_prompt $" {
 420             pass "$description"
 421         }
 422         -re ".*$gdb_prompt $" {
 423             fail "$description"
 424         }
 425         timeout {
 426             fail "$description (timeout)"
 427         }
 428     }
 429
 430     set description "send SIGINT signal to child process"
 431     send_gdb "signal SIGINT\n"
 432     gdb_expect {
 433         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 434             pass "$description"
 435         }
 436         -re ".*$gdb_prompt $" {
 437             fail "$description"
 438         }
 439         timeout {
 440             fail "$description (timeout)"
 441         }
 442     }
 443
 444     # get a stack trace
 445     #
 446     # This fails on some linux systems for unknown reasons.  On the
 447     # systems where it fails, sometimes it works fine when run manually.
 448     # The testsuite failures may not be limited to just aout systems.
 449     setup_xfail "i*86-pc-linuxaout-gnu"
 450     set description "backtrace through signal handler"
 451     send_gdb "backtrace\n"
 452     gdb_expect {
 453         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 454             pass "$description"
 455         }
 456         -re ".*$gdb_prompt $" {
 457             # On the alpha, we hit the infamous problem about gdb
 458             # being unable to get the frame pointer (mentioned in
 459             # gdb/README).  As it is intermittent, there is no way to
 460             # XFAIL it which will give us an XPASS if the problem goes
 461             # away.
 462             setup_xfail "alpha*-*-osf*"
 463             fail "$description"
 464         }
 465         timeout {
 466             fail "$description (timeout)"
 467         }
 468     }
 469
 470
 471     # Set the timeout back to the value it had when we were called.
 472     set timeout $oldtimeout
 473     verbose "Timeout is now $timeout seconds" 2
 474
 475     # Restart gdb in case next test expects it to be started already.
 476     return 0
 477 }
 478
 479 # Find a pathname to a file that we would execute if the shell was asked
 480 # to run $arg using the current PATH.
 481
 482 proc find_gdb { arg } {
 483
 484     # If the arg directly specifies an existing executable file, then
 485     # simply use it.
 486
 487     if [file executable $arg] then {
 488         return $arg
 489     }
 490
 491     set result [which $arg]
 492     if [string match "/" [ string range $result 0 0 ]] then {
 493         return $result
 494     }
 495
 496     # If everything fails, just return the unqualified pathname as default
 497     # and hope for best.
 498
 499     return $arg
 500 }
 501
 502 # Run the test with self.
 503 # Copy the file executable file in case this OS doesn't like to edit its own
 504 # text space.
 505
 506 set GDB_FULLPATH [find_gdb $GDB]
 507
 508 # Remove any old copy lying around.
 509 remote_file host delete x$tool
 510
 511 gdb_start
 512 set file [remote_download host $GDB_FULLPATH x$tool]
 513 set result [test_with_self $file];
 514 gdb_exit;
 515 catch "remote_file host delete $file";
 516
 517 if {$result <0} then {
 518     warning "Couldn't test self"
 519     return -1
 520 }