gdb/testsuite/gdb.gdb/selftest.exp

   1 # Copyright 1988-2013 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file was written by Rob Savoye. (rob@cygnus.com)
  17
  18
  19 # are we on a target board
  20 if { [is_remote target] || ![isnative] } then {
  21     return
  22 }
  23
  24 # Not all of the lines of code near the start of main are executed for
  25 # every machine.  Also, optimization may reorder some of the lines.
  26 # So all we do is try to step or next over everything until we get
  27 # to a line that we know is always executed.
  28
  29 proc do_steps_and_nexts {} {
  30     global gdb_prompt
  31     global srcdir
  32
  33     gdb_reinitialize_dir $srcdir/..
  34
  35     set unlikely_line 0
  36     for {set count 0} {$count < 32} {incr count} {
  37         # NOTE: carlton/2002-12-11: The "initial brace" and
  38         # "current_directory initialization" possibilities happen to
  39         # me with GCC 3.1 on i686-pc-linux-gnu when I compile with
  40         # optimization.
  41         gdb_test_multiple "list" "list" {
  42             -re ".*context = data.*$gdb_prompt $" {
  43                 set description "step over context initialization"
  44                 set command "step"
  45             }
  46             -re ".*argc = context->argc.*$gdb_prompt $" {
  47                 set description "step over argc initialization"
  48                 set command "step"
  49             }
  50             -re ".*argv = context->argv.*$gdb_prompt $" {
  51                 set description "step over argv initialization"
  52                 set command "step"
  53             }
  54             -re ".*quiet = 0.*$gdb_prompt $" {
  55                 set description "step over quiet initialization"
  56                 set command "step"
  57             }
  58             -re ".*batch = 0.*$gdb_prompt $" {
  59                 set description "step over batch initialization"
  60                 set command "step"
  61             }
  62             -re ".*symarg = NULL.*$gdb_prompt $" {
  63                 set description "step over symarg initialization"
  64                 set command "step"
  65             }
  66             -re ".*execarg = NULL.*$gdb_prompt $" {
  67                 set description "step over execarg initialization"
  68                 set command "step"
  69             }
  70             -re ".*pidarg = NULL.*$gdb_prompt $" {
  71                 set description "step over pidarg initialization"
  72                 set command "step"
  73             }
  74             -re ".*corearg = NULL.*$gdb_prompt $" {
  75                 set description "step over corearg initialization"
  76                 set command "step"
  77             }
  78             -re ".*pid_or_core_arg = NULL.*$gdb_prompt $" {
  79                 set description "step over pid_or_core_arg initialization"
  80                 set command "step"
  81             }
  82             -re ".*cdarg = NULL.*$gdb_prompt $" {
  83                 set description "step over cdarg initialization"
  84                 set command "step"
  85             }
  86             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  87                 set description "step over ttyarg initialization"
  88                 set command "step"
  89             }
  90             -re ".*cmdarg_vec = NULL.*$gdb_prompt $" {
  91                 set description "step over cmdarg_vec initialization"
  92                 set command "step"
  93             }
  94             -re ".*pre_stat_chain = make_command_stats_cleanup.*$gdb_prompt $" {
  95                 set description "next over make_command_stats_cleanup and everything it calls"
  96                 set command "next"
  97             }
  98             -re ".*START_PROGRESS.*$gdb_prompt $" {
  99                 # Note: ezannoni/2004/02/17: This check should be
 100                 # removed, since as of today that source line is not
 101                 # in gdb anymore.
 102                 set description "next over START_PROGRESS and everything it calls"
 103                 set command "next"
 104             }
 105             -re ".*mac_init.*$gdb_prompt $" {
 106                 set description "next over mac_init and everything it calls"
 107                 set command "next"
 108             }
 109             -re ".*init_malloc.*$gdb_prompt $" {
 110                 # gdb 6.2.X is the last gdb which called init_malloc
 111                 set description "next over init_malloc and everything it calls"
 112                 set command "next"
 113             }
 114             -re ".*lim_at_start.*$gdb_prompt $" {
 115                 set description "next over lim_at_start initialization"
 116                 set command "next"
 117             }
 118             -re ".*count . 0x3.*$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 $" {
 127                 set description "next over conditional stack alignment alloca"
 128                 set command "next"
 129             }
 130             -re ".*dirsize = 1.*$gdb_prompt $" {
 131                 set description "next over dirsize initialization"
 132                 set command "next"
 133             }
 134             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 135                 return
 136             }
 137             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 138                 set description "next over setlocale LC_MESSAGES"
 139                 set command "next"
 140             }
 141             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 142                 set description "next over setlocale LC_CTYPE"
 143                 set command "next"
 144             }
 145             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 146                 set description "next over bindtextdomain"
 147                 set command "next"
 148             }
 149             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 150                 set description "next over textdomain PACKAGE"
 151                 set command "next"
 152             }
 153             -re ".*bfd_init ..;.*$gdb_prompt $" {
 154                 set description "next over bfd_init"
 155                 set command "next"
 156             }
 157             -re ".*VEC_cleanup .cmdarg_s.*$gdb_prompt $" {
 158                 set description "next over cmdarg_s VEC_cleanup"
 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 $" {
 184                 set description "next over getcwd"
 185                 set command "next"
 186             }
 187             -re ".*gdb_program_name = xstrdup.*$gdb_prompt $" {
 188                 set description "next over xstrdup"
 189                 set command "next"
 190             }
 191             -re ".*quit_flag = 0.*$gdb_prompt $" {
 192                 set description "step over quit_flag initialization"
 193                 set command "step"
 194             }
 195             -re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
 196                 set description "step over gdb_stdout initialization"
 197                 set command "step"
 198             }
 199             -re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
 200                 set description "step over gdb_stderr initialization"
 201                 set command "step"
 202             }
 203             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 204                 setup_xfail "rs6000-*-aix3*"
 205                 fail "must be able to list source lines"
 206                 return
 207             }
 208             -re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
 209                 if { $unlikely_line == 0 } {
 210                     # This is a GCC optimization bug; a constant has been
 211                     # associated with the wrong line number.
 212                     setup_xfail "*-*-*" gcc/26475
 213                     fail "$description (unlikely line from gcc)"
 214                     set unlikely_line 1
 215                 }
 216                 set description "next over xstrdup"
 217                 set command "next"
 218             }
 219             -re ".*$gdb_prompt $" {
 220                 fail "unknown source line after $description"
 221                 return
 222             }
 223             default {
 224                 fail "unknown source line near main"
 225                 return
 226             }
 227         }
 228         gdb_test_multiple "$command" "$description" {
 229             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 230                 fail "$description (no source available)"
 231             }
 232             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 233                 fail "$description (no source available)"
 234             }
 235             -re ".*$gdb_prompt $" {
 236                 pass "$description"
 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     global INTERNAL_GDBFLAGS
 249
 250     # load yourself into the debugger
 251     # This can take a relatively long time, particularly for testing where
 252     # the executable is being accessed over a network, or where gdb does not
 253     # support partial symbols for a particular target and has to load the
 254     # entire symbol table.  Set the timeout to 10 minutes, which should be
 255     # adequate for most environments (it *has* timed out with 5 min on a
 256     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 257     # After gdb is started, set the timeout to 30 seconds for the duration
 258     # of this test, and then back to the original value.
 259
 260     set oldtimeout $timeout
 261     set timeout 600
 262     verbose "Timeout is now $timeout seconds" 2
 263
 264     global gdb_file_cmd_debug_info
 265     set gdb_file_cmd_debug_info "unset"
 266
 267     set result [gdb_load $executable]
 268     set timeout $oldtimeout
 269     verbose "Timeout is now $timeout seconds" 2
 270
 271     if { $result != 0 } then {
 272         return -1
 273     }
 274
 275     if { $gdb_file_cmd_debug_info != "debug" } then {
 276         untested "No debug information, skipping testcase."
 277         return -1
 278     }
 279
 280     # disassemble yourself
 281     gdb_test "x/10i main" \
 282             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 283             "Disassemble main"
 284
 285     # Set a breakpoint at main
 286     gdb_test "break captured_main" \
 287             "Breakpoint.*at.* file.*, line.*" \
 288             "breakpoint in captured_main"
 289
 290     # We'll need this when we send a ^C to GDB.  Need to do it before we
 291     # run the program and gdb starts saving and restoring tty states.
 292     # On Ultrix, we don't need it and it is really slow (because shell_escape
 293     # doesn't use vfork).
 294     if ![istarget "*-*-ultrix*"] then {
 295         gdb_test "shell stty intr '^C'" ".*" \
 296             "set interrupt character in test_with_self"
 297     }
 298
 299     # FIXME: If we put this after the run to main, the first list
 300     # command doesn't print the same line as the current line where
 301     # gdb is stopped.
 302     gdb_test_no_output "set listsize 1" "set listsize to 1"
 303
 304     # run yourself
 305     # It may take a very long time for the inferior gdb to start (lynx),
 306     # so we bump it back up for the duration of this command.
 307     set timeout 600
 308
 309     set description "run until breakpoint at captured_main"
 310     gdb_test_multiple "run $INTERNAL_GDBFLAGS" "$description" {
 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     }
 330
 331     set timeout $oldtimeout
 332     verbose "Timeout is now $timeout seconds" 2
 333
 334     # do we have a version number ?
 335     gdb_test_multiple "print version" "printed version" {
 336         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 337             pass "printed version as string"
 338         }
 339         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 340             pass "printed version as pointer"
 341         }
 342         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 343             pass "printed version with cast"
 344         }
 345     }
 346
 347     do_steps_and_nexts
 348
 349     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 350
 351     # do_steps_and_nexts left us ready to execute an xmalloc call,
 352     # so give that a try.
 353     # If we don't actually enter the xmalloc call when we give a
 354     # step command that seems like a genuine bug.  It seems to happen
 355     # on most RISC processors.
 356     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 357     # lines, just keep stepping until we enter.
 358     set stepped_back 0
 359     setup_xfail "alpha-*-*" "mips-*-*"
 360     set description "step into xmalloc call"
 361     gdb_test_multiple "step" "$description" {
 362         -re "ncmd = 0;.*$gdb_prompt $" {
 363             set stepped_back 1
 364             send_gdb "step\n"
 365             exp_continue
 366         }
 367         -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 368             set stepped_back 1
 369             send_gdb "step\n"
 370             exp_continue
 371         }
 372         -re "dirsize = 1;.*$gdb_prompt $" {
 373             set stepped_back 1
 374             send_gdb "step\n"
 375             exp_continue
 376         }
 377         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 378             if { $stepped_back == 1 } {
 379                 send_gdb "step\n"
 380                 exp_continue
 381             } else {
 382                 fail "$description"
 383             }
 384         }
 385         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 386             pass "$description"
 387         }
 388         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 389             pass "$description (no source available)"
 390         }
 391         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 392             pass "$description (no source available)"
 393         }
 394     }
 395
 396     # start the "xgdb" process
 397     if [target_info exists gdb,noinferiorio] {
 398         # Maybe testing with a local extended-remote gdbserver.  With
 399         # no way to interact with inferior GDB, all we can do is let
 400         # it run.
 401         send_gdb "continue\n"
 402         # Wait a bit while the inferior gdb gets to its prompt.
 403         sleep 1
 404     } else {
 405         set test "xgdb is at prompt"
 406         gdb_test_multiple "continue" $test {
 407             -re "GNU gdb \[0-9\.\]*.*Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*License GPLv3\\+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.*This is free software: you are free to change and redistribute it.*There is NO WARRANTY, to the extent permitted by law.  Type \"show copying\".*and \"show warranty\" for details.*This GDB was configured as .*$gdb_prompt $" {
 408                 pass $test
 409             }
 410         }
 411
 412         # set xgdb prompt so we can tell which is which
 413         gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" {
 414             -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" {
 415                 pass "Set xgdb prompt"
 416             }
 417         }
 418     }
 419
 420     # kill the xgdb process
 421     set description "send ^C to child process"
 422     send_gdb "\003"
 423     gdb_expect {
 424         -re "Program received signal SIGINT.*$gdb_prompt $" {
 425             pass "$description"
 426         }
 427         -re ".*$gdb_prompt $" {
 428             fail "$description"
 429         }
 430         timeout {
 431             fail "$description (timeout)"
 432         }
 433     }
 434
 435     set description "send SIGINT signal to child process"
 436     gdb_test "signal SIGINT" \
 437         "Continuing with signal SIGINT.*" \
 438         "$description"
 439
 440     # get a stack trace
 441     #
 442     # This fails on some linux systems for unknown reasons.  On the
 443     # systems where it fails, sometimes it works fine when run manually.
 444     # The testsuite failures may not be limited to just aout systems.
 445     setup_xfail "i*86-pc-linuxaout-gnu"
 446     set description "backtrace through signal handler"
 447     gdb_test_multiple "backtrace" "$description" {
 448         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 449             pass "$description"
 450         }
 451         -re ".*$gdb_prompt $" {
 452             # On the alpha, we hit the infamous problem about gdb
 453             # being unable to get the frame pointer (mentioned in
 454             # gdb/README).  As it is intermittent, there is no way to
 455             # XFAIL it which will give us an XPASS if the problem goes
 456             # away.
 457             setup_xfail "alpha*-*-osf*"
 458             fail "$description"
 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 }