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 3 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, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Rob Savoye. (rob@cygnus.com)
  18
  19 if $tracelevel then {
  20     strace $tracelevel
  21 }
  22
  23 set prms_id 0
  24 set bug_id 0
  25
  26 # are we on a target board
  27 if { [is_remote target] || ![isnative] } then {
  28     return
  29 }
  30
  31 # Not all of the lines of code near the start of main are executed for
  32 # every machine.  Also, optimization may reorder some of the lines.
  33 # So all we do is try to step or next over everything until we get
  34 # to a line that we know is always executed.
  35
  36 proc do_steps_and_nexts {} {
  37     global gdb_prompt
  38     global srcdir
  39
  40     gdb_reinitialize_dir $srcdir/..
  41
  42     set unlikely_line 0
  43     for {set count 0} {$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 $" {
 184                 set description "next over getcwd"
 185                 set command "next"
 186             }
 187             -re ".*quit_flag = 0.*$gdb_prompt $" {
 188                 set description "step over quit_flag initialization"
 189                 set command "step"
 190             }
 191             -re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
 192                 set description "step over gdb_stdout initialization"
 193                 set command "step"
 194             }
 195             -re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
 196                 set description "step over gdb_stderr initialization"
 197                 set command "step"
 198             }
 199             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 200                 setup_xfail "rs6000-*-aix3*"
 201                 fail "must be able to list source lines"
 202                 return
 203             }
 204             -re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
 205                 if { $unlikely_line == 0 } {
 206                     # This is a GCC optimization bug; a constant has been
 207                     # associated with the wrong line number.
 208                     setup_xfail "*-*-*" gcc/26475
 209                     fail "$description (unlikely line from gcc)"
 210                     set unlikely_line 1
 211                 }
 212                 set description "next over xstrdup"
 213                 set command "next"
 214             }
 215             -re ".*$gdb_prompt $" {
 216                 fail "unknown source line after $description"
 217                 return
 218             }
 219             default {
 220                 fail "unknown source line near main"
 221                 return
 222             }
 223         }
 224         send_gdb "$command\n"
 225         gdb_expect {
 226             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 227                 fail "$description (no source available)"
 228             }
 229             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 230                 fail "$description (no source available)"
 231             }
 232             -re ".*$gdb_prompt $" {
 233                 pass "$description"
 234             }
 235             timeout {
 236                 fail "$description (timeout)"
 237             }
 238         }
 239     }
 240 }
 241
 242 proc test_with_self { executable } {
 243     global gdb_prompt
 244     global tool
 245     global det_file
 246     global decimal
 247     global timeout
 248
 249     # load yourself into the debugger
 250     # This can take a relatively long time, particularly for testing where
 251     # the executable is being accessed over a network, or where gdb does not
 252     # support partial symbols for a particular target and has to load the
 253     # entire symbol table.  Set the timeout to 10 minutes, which should be
 254     # adequate for most environments (it *has* timed out with 5 min on a
 255     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 256     # After gdb is started, set the timeout to 30 seconds for the duration
 257     # of this test, and then back to the original value.
 258
 259     set oldtimeout $timeout
 260     set timeout 600
 261     verbose "Timeout is now $timeout seconds" 2
 262
 263     global gdb_file_cmd_debug_info
 264     set gdb_file_cmd_debug_info "unset"
 265
 266     set result [gdb_load $executable]
 267     set timeout $oldtimeout
 268     verbose "Timeout is now $timeout seconds" 2
 269
 270     if { $result != 0 } then {
 271         return -1
 272     }
 273
 274     if { $gdb_file_cmd_debug_info != "debug" } then {
 275         untested "No debug information, skipping testcase."
 276         return -1
 277     }
 278
 279     # disassemble yourself
 280     gdb_test "x/10i main" \
 281             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 282             "Disassemble main"
 283
 284     # Set a breakpoint at main
 285     gdb_test "break captured_main" \
 286             "Breakpoint.*at.* file.*, line.*" \
 287             "breakpoint in captured_main"
 288
 289     # We'll need this when we send a ^C to GDB.  Need to do it before we
 290     # run the program and gdb starts saving and restoring tty states.
 291     # On Ultrix, we don't need it and it is really slow (because shell_escape
 292     # doesn't use vfork).
 293     if ![istarget "*-*-ultrix*"] then {
 294         gdb_test "shell stty intr '^C'" "" \
 295             "set interrupt character in test_with_self"
 296     }
 297
 298     # FIXME: If we put this after the run to main, the first list
 299     # command doesn't print the same line as the current line where
 300     # gdb is stopped.
 301     gdb_test "set listsize 1" "" "set listsize to 1"
 302
 303     # run yourself
 304     # It may take a very long time for the inferior gdb to start (lynx),
 305     # so we bump it back up for the duration of this command.
 306     set timeout 600
 307
 308     set description "run until breakpoint at captured_main"
 309     send_gdb "run -nw\n"
 310     gdb_expect {
 311         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 312             pass "$description"
 313         }
 314         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 315             xfail "$description (line numbers scrambled?)"
 316         }
 317         -re "vfork: No more processes.*$gdb_prompt $" {
 318             fail "$description (out of virtual memory)"
 319             set timeout $oldtimeout
 320             verbose "Timeout is now $timeout seconds" 2
 321             return -1
 322         }
 323         -re ".*$gdb_prompt $" {
 324             fail "$description"
 325             set timeout $oldtimeout
 326             verbose "Timeout is now $timeout seconds" 2
 327             return -1
 328         }
 329         timeout {
 330             fail "$description (timeout)"
 331         }
 332     }
 333
 334     set timeout $oldtimeout
 335     verbose "Timeout is now $timeout seconds" 2
 336
 337     # do we have a version number ?
 338     send_gdb "print version\n"
 339     gdb_expect {
 340         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 341             pass "printed version as string"
 342         }
 343         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 344             pass "printed version as pointer"
 345         }
 346         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 347             pass "printed version with cast"
 348         }
 349         -re ".*$gdb_prompt $"   { fail "printed version" }
 350         timeout         { fail "(timeout) printed version" }
 351     }
 352
 353     do_steps_and_nexts
 354
 355     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 356
 357     # do_steps_and_nexts left us ready to execute an xmalloc call,
 358     # so give that a try.
 359     # If we don't actually enter the xmalloc call when we give a
 360     # step command that seems like a genuine bug.  It seems to happen
 361     # on most RISC processors.
 362     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 363     # lines, just keep stepping until we enter.
 364     set stepped_back 0
 365     setup_xfail "alpha-*-*" "mips-*-*"
 366     set description "step into xmalloc call"
 367     send_gdb "step\n"
 368     gdb_expect {
 369         -re "ncmd = 0;.*$gdb_prompt $" {
 370             set stepped_back 1
 371             send_gdb "step\n"
 372             exp_continue
 373         }
 374         -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 375             set stepped_back 1
 376             send_gdb "step\n"
 377             exp_continue
 378         }
 379         -re "dirsize = 1;.*$gdb_prompt $" {
 380             set stepped_back 1
 381             send_gdb "step\n"
 382             exp_continue
 383         }
 384         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 385             if { $stepped_back == 1 } {
 386                 send_gdb "step\n"
 387                 exp_continue
 388             } else {
 389                 fail "$description"
 390             }
 391         }
 392         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 393             pass "$description"
 394         }
 395         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 396             pass "$description (no source available)"
 397         }
 398         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 399             pass "$description (no source available)"
 400         }
 401         -re ".*$gdb_prompt $" {
 402             fail "$description"
 403         }
 404         timeout {
 405             fail "$description (timeout)"
 406         }
 407     }
 408
 409     # start the "xgdb" process
 410     send_gdb "continue\n"
 411     gdb_expect {
 412         -re "GNU gdb \[0-9\.\]*.*
 413 Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*
 414 License GPLv3\\+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.*
 415 This is free software: you are free to change and redistribute it.*
 416 There is NO WARRANTY, to the extent permitted by law.  Type \"show copying\".*
 417 and \"show warranty\" for details.*
 418 This GDB was configured as .*$gdb_prompt $"\
 419             { pass "xgdb is at prompt" }
 420         -re "GNU gdb \[0-9\.\]*.*
 421 Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*
 422 GDB is free software, covered by the GNU General Public License, and you are.*
 423 welcome to change it and/or distribute copies of it under certain conditions.*
 424 Type \"show copying\" to see the conditions.*
 425 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 426 This GDB was configured as .*$gdb_prompt $"\
 427             { pass "xgdb is at prompt (obsolescent gdb 2)" }
 428         -re "GDB is free software and you are welcome to distribute copies of it.*
 429  under certain conditions; type \"show copying\" to see the conditions..*
 430 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 431 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 432             { pass "xgdb is at prompt (obsolescent gdb 1)" }
 433         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 434         timeout             { fail "(timeout) xgdb is at prompt" }
 435     }
 436
 437     # set xgdb prompt so we can tell which is which
 438     send_gdb "set prompt (xgdb) \n"
 439     gdb_expect {
 440         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 441         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 442         default                         { fail "(timeout) Set xgdb prompt" }
 443     }
 444
 445     # kill the xgdb process
 446     set description "send ^C to child process"
 447     send_gdb "\003"
 448     gdb_expect {
 449         -re "Program received signal SIGINT.*$gdb_prompt $" {
 450             pass "$description"
 451         }
 452         -re ".*$gdb_prompt $" {
 453             fail "$description"
 454         }
 455         timeout {
 456             fail "$description (timeout)"
 457         }
 458     }
 459
 460     set description "send SIGINT signal to child process"
 461     send_gdb "signal SIGINT\n"
 462     gdb_expect {
 463         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 464             pass "$description"
 465         }
 466         -re ".*$gdb_prompt $" {
 467             fail "$description"
 468         }
 469         timeout {
 470             fail "$description (timeout)"
 471         }
 472     }
 473
 474     # get a stack trace
 475     #
 476     # This fails on some linux systems for unknown reasons.  On the
 477     # systems where it fails, sometimes it works fine when run manually.
 478     # The testsuite failures may not be limited to just aout systems.
 479     setup_xfail "i*86-pc-linuxaout-gnu"
 480     set description "backtrace through signal handler"
 481     send_gdb "backtrace\n"
 482     gdb_expect {
 483         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 484             pass "$description"
 485         }
 486         -re ".*$gdb_prompt $" {
 487             # On the alpha, we hit the infamous problem about gdb
 488             # being unable to get the frame pointer (mentioned in
 489             # gdb/README).  As it is intermittent, there is no way to
 490             # XFAIL it which will give us an XPASS if the problem goes
 491             # away.
 492             setup_xfail "alpha*-*-osf*"
 493             fail "$description"
 494         }
 495         timeout {
 496             fail "$description (timeout)"
 497         }
 498     }
 499
 500
 501     # Set the timeout back to the value it had when we were called.
 502     set timeout $oldtimeout
 503     verbose "Timeout is now $timeout seconds" 2
 504
 505     # Restart gdb in case next test expects it to be started already.
 506     return 0
 507 }
 508
 509 # Find a pathname to a file that we would execute if the shell was asked
 510 # to run $arg using the current PATH.
 511
 512 proc find_gdb { arg } {
 513
 514     # If the arg directly specifies an existing executable file, then
 515     # simply use it.
 516
 517     if [file executable $arg] then {
 518         return $arg
 519     }
 520
 521     set result [which $arg]
 522     if [string match "/" [ string range $result 0 0 ]] then {
 523         return $result
 524     }
 525
 526     # If everything fails, just return the unqualified pathname as default
 527     # and hope for best.
 528
 529     return $arg
 530 }
 531
 532 # Run the test with self.
 533 # Copy the file executable file in case this OS doesn't like to edit its own
 534 # text space.
 535
 536 set GDB_FULLPATH [find_gdb $GDB]
 537
 538 # Remove any old copy lying around.
 539 remote_file host delete x$tool
 540
 541 gdb_start
 542 set file [remote_download host $GDB_FULLPATH x$tool]
 543 set result [test_with_self $file];
 544 gdb_exit;
 545 catch "remote_file host delete $file";
 546
 547 if {$result <0} then {
 548     warning "Couldn't test self"
 549     return -1
 550 }