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 load_lib selftest-support.exp
  19
  20 # are we on a target board
  21 if { [is_remote target] || ![isnative] } then {
  22     return
  23 }
  24
  25 # Not all of the lines of code near the start of main are executed for
  26 # every machine.  Also, optimization may reorder some of the lines.
  27 # So all we do is try to step or next over everything until we get
  28 # to a line that we know is always executed.
  29
  30 proc do_steps_and_nexts {} {
  31     global gdb_prompt
  32     global srcdir
  33
  34     gdb_reinitialize_dir $srcdir/..
  35
  36     set unlikely_line 0
  37     for {set count 0} {$count < 32} {incr count} {
  38         # NOTE: carlton/2002-12-11: The "initial brace" and
  39         # "current_directory initialization" possibilities happen to
  40         # me with GCC 3.1 on i686-pc-linux-gnu when I compile with
  41         # optimization.
  42         gdb_test_multiple "list" "list" {
  43             -re ".*context = data.*$gdb_prompt $" {
  44                 set description "step over context initialization"
  45                 set command "step"
  46             }
  47             -re ".*argc = context->argc.*$gdb_prompt $" {
  48                 set description "step over argc initialization"
  49                 set command "step"
  50             }
  51             -re ".*argv = context->argv.*$gdb_prompt $" {
  52                 set description "step over argv initialization"
  53                 set command "step"
  54             }
  55             -re ".*quiet = 0.*$gdb_prompt $" {
  56                 set description "step over quiet initialization"
  57                 set command "step"
  58             }
  59             -re ".*batch = 0.*$gdb_prompt $" {
  60                 set description "step over batch initialization"
  61                 set command "step"
  62             }
  63             -re ".*symarg = NULL.*$gdb_prompt $" {
  64                 set description "step over symarg initialization"
  65                 set command "step"
  66             }
  67             -re ".*execarg = NULL.*$gdb_prompt $" {
  68                 set description "step over execarg initialization"
  69                 set command "step"
  70             }
  71             -re ".*pidarg = NULL.*$gdb_prompt $" {
  72                 set description "step over pidarg initialization"
  73                 set command "step"
  74             }
  75             -re ".*corearg = NULL.*$gdb_prompt $" {
  76                 set description "step over corearg initialization"
  77                 set command "step"
  78             }
  79             -re ".*pid_or_core_arg = NULL.*$gdb_prompt $" {
  80                 set description "step over pid_or_core_arg initialization"
  81                 set command "step"
  82             }
  83             -re ".*cdarg = NULL.*$gdb_prompt $" {
  84                 set description "step over cdarg initialization"
  85                 set command "step"
  86             }
  87             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  88                 set description "step over ttyarg initialization"
  89                 set command "step"
  90             }
  91             -re ".*cmdarg_vec = NULL.*$gdb_prompt $" {
  92                 set description "step over cmdarg_vec initialization"
  93                 set command "step"
  94             }
  95             -re ".*pre_stat_chain = make_command_stats_cleanup.*$gdb_prompt $" {
  96                 set description "next over make_command_stats_cleanup and everything it calls"
  97                 set command "next"
  98             }
  99             -re ".*START_PROGRESS.*$gdb_prompt $" {
 100                 # Note: ezannoni/2004/02/17: This check should be
 101                 # removed, since as of today that source line is not
 102                 # in gdb anymore.
 103                 set description "next over START_PROGRESS and everything it calls"
 104                 set command "next"
 105             }
 106             -re ".*mac_init.*$gdb_prompt $" {
 107                 set description "next over mac_init and everything it calls"
 108                 set command "next"
 109             }
 110             -re ".*init_malloc.*$gdb_prompt $" {
 111                 # gdb 6.2.X is the last gdb which called init_malloc
 112                 set description "next over init_malloc and everything it calls"
 113                 set command "next"
 114             }
 115             -re ".*lim_at_start.*$gdb_prompt $" {
 116                 set description "next over lim_at_start initialization"
 117                 set command "next"
 118             }
 119             -re ".*count . 0x3.*$gdb_prompt $" {
 120                 set description "next over conditional stack alignment code 1"
 121                 set command "next"
 122             }
 123             -re ".*if .i != 0.*$gdb_prompt $" {
 124                 set description "next over conditional stack alignment code 2"
 125                 set command "next"
 126             }
 127             -re ".*alloca .i - 4.*$gdb_prompt $" {
 128                 set description "next over conditional stack alignment alloca"
 129                 set command "next"
 130             }
 131             -re ".*dirsize = 1.*$gdb_prompt $" {
 132                 set description "next over dirsize initialization"
 133                 set command "next"
 134             }
 135             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 136                 return
 137             }
 138             -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
 139                 set description "next over setlocale LC_MESSAGES"
 140                 set command "next"
 141             }
 142             -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
 143                 set description "next over setlocale LC_CTYPE"
 144                 set command "next"
 145             }
 146             -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
 147                 set description "next over bindtextdomain"
 148                 set command "next"
 149             }
 150             -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
 151                 set description "next over textdomain PACKAGE"
 152                 set command "next"
 153             }
 154             -re ".*bfd_init ..;.*$gdb_prompt $" {
 155                 set description "next over bfd_init"
 156                 set command "next"
 157             }
 158             -re ".*notice_open_fds ..;.*$gdb_prompt $" {
 159                 set description "next over notice_open_fds"
 160                 set command "next"
 161             }
 162             -re ".*VEC_cleanup .cmdarg_s.*$gdb_prompt $" {
 163                 set description "next over cmdarg_s VEC_cleanup"
 164                 set command "next"
 165             }
 166             -re "\[0-9\]+\[\t \]+\{\r\n$gdb_prompt $" {
 167                 set description "step over initial brace"
 168                 set command "step"
 169             }
 170             -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
 171                 set description "step over current_directory initialization"
 172                 set command "step"
 173             }
 174             -re ".*gdb_sysroot = .*$gdb_prompt $" {
 175                 # NOTE: carlton/2003-01-15: More optimization reordering,
 176                 # observed on GCC 3.1.
 177                 set description "step over gdb_sysroot initialization"
 178                 set command "step"
 179             }
 180             -re ".*ndir = 0.*$gdb_prompt $" {
 181                 set description "step over ndir initialization"
 182                 set command "step"
 183             }
 184             -re ".*instream = stdin.*$gdb_prompt $" {
 185                 set description "step over instream initialization"
 186                 set command "step"
 187             }
 188             -re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf.*$gdb_prompt $" {
 189                 set description "next over getcwd"
 190                 set command "next"
 191             }
 192             -re ".*gdb_program_name = xstrdup.*$gdb_prompt $" {
 193                 set description "next over xstrdup"
 194                 set command "next"
 195             }
 196             -re ".*quit_flag = 0.*$gdb_prompt $" {
 197                 set description "step over quit_flag initialization"
 198                 set command "step"
 199             }
 200             -re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
 201                 set description "step over gdb_stdout initialization"
 202                 set command "step"
 203             }
 204             -re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
 205                 set description "step over gdb_stderr initialization"
 206                 set command "step"
 207             }
 208             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 209                 setup_xfail "rs6000-*-aix3*"
 210                 fail "must be able to list source lines"
 211                 return
 212             }
 213             -re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
 214                 if { $unlikely_line == 0 } {
 215                     # This is a GCC optimization bug; a constant has been
 216                     # associated with the wrong line number.
 217                     setup_xfail "*-*-*" gcc/26475
 218                     fail "$description (unlikely line from gcc)"
 219                     set unlikely_line 1
 220                 }
 221                 set description "next over xstrdup"
 222                 set command "next"
 223             }
 224             -re ".*$gdb_prompt $" {
 225                 fail "unknown source line after $description"
 226                 return
 227             }
 228             default {
 229                 fail "unknown source line near main"
 230                 return
 231             }
 232         }
 233         gdb_test_multiple "$command" "$description" {
 234             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 235                 fail "$description (no source available)"
 236             }
 237             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 238                 fail "$description (no source available)"
 239             }
 240             -re ".*$gdb_prompt $" {
 241                 pass "$description"
 242             }
 243         }
 244     }
 245 }
 246
 247 proc test_with_self { executable } {
 248     global gdb_prompt
 249     global tool
 250     global det_file
 251     global decimal
 252     global timeout
 253     global INTERNAL_GDBFLAGS
 254
 255     # load yourself into the debugger
 256     # This can take a relatively long time, particularly for testing where
 257     # the executable is being accessed over a network, or where gdb does not
 258     # support partial symbols for a particular target and has to load the
 259     # entire symbol table.  Set the timeout to 10 minutes, which should be
 260     # adequate for most environments (it *has* timed out with 5 min on a
 261     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 262     # After gdb is started, set the timeout to 30 seconds for the duration
 263     # of this test, and then back to the original value.
 264
 265     set oldtimeout $timeout
 266     set timeout 600
 267     verbose "Timeout is now $timeout seconds" 2
 268
 269     global gdb_file_cmd_debug_info
 270     set gdb_file_cmd_debug_info "unset"
 271
 272     set result [gdb_load $executable]
 273     set timeout $oldtimeout
 274     verbose "Timeout is now $timeout seconds" 2
 275
 276     if { $result != 0 } then {
 277         return -1
 278     }
 279
 280     if { $gdb_file_cmd_debug_info != "debug" } then {
 281         untested "No debug information, skipping testcase."
 282         return -1
 283     }
 284
 285     # disassemble yourself
 286     gdb_test "x/10i main" \
 287             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 288             "Disassemble main"
 289
 290     # Set a breakpoint at main
 291     gdb_test "break captured_main" \
 292             "Breakpoint.*at.* file.*, line.*" \
 293             "breakpoint in captured_main"
 294
 295     # We'll need this when we send a ^C to GDB.  Need to do it before we
 296     # run the program and gdb starts saving and restoring tty states.
 297     # On Ultrix, we don't need it and it is really slow (because shell_escape
 298     # doesn't use vfork).
 299     if ![istarget "*-*-ultrix*"] then {
 300         gdb_test "shell stty intr '^C'" ".*" \
 301             "set interrupt character in test_with_self"
 302     }
 303
 304     # FIXME: If we put this after the run to main, the first list
 305     # command doesn't print the same line as the current line where
 306     # gdb is stopped.
 307     gdb_test_no_output "set listsize 1" "set listsize to 1"
 308
 309     # run yourself
 310     # It may take a very long time for the inferior gdb to start (lynx),
 311     # so we bump it back up for the duration of this command.
 312     set timeout 600
 313
 314     set description "run until breakpoint at captured_main"
 315     gdb_test_multiple "run $INTERNAL_GDBFLAGS" "$description" {
 316         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 317             pass "$description"
 318         }
 319         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 320             xfail "$description (line numbers scrambled?)"
 321         }
 322         -re "vfork: No more processes.*$gdb_prompt $" {
 323             fail "$description (out of virtual memory)"
 324             set timeout $oldtimeout
 325             verbose "Timeout is now $timeout seconds" 2
 326             return -1
 327         }
 328         -re ".*$gdb_prompt $" {
 329             fail "$description"
 330             set timeout $oldtimeout
 331             verbose "Timeout is now $timeout seconds" 2
 332             return -1
 333         }
 334     }
 335
 336     set timeout $oldtimeout
 337     verbose "Timeout is now $timeout seconds" 2
 338
 339     # do we have a version number ?
 340     gdb_test_multiple "print version" "printed version" {
 341         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 342             pass "printed version as string"
 343         }
 344         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 345             pass "printed version as pointer"
 346         }
 347         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 348             pass "printed version with cast"
 349         }
 350     }
 351
 352     do_steps_and_nexts
 353
 354     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 355
 356     # do_steps_and_nexts left us ready to execute an xmalloc call,
 357     # so give that a try.
 358     # If we don't actually enter the xmalloc call when we give a
 359     # step command that seems like a genuine bug.  It seems to happen
 360     # on most RISC processors.
 361     # NOTE drow/2003-06-22: However, if we step back to the preceding two
 362     # lines, just keep stepping until we enter.
 363     set stepped_back 0
 364     setup_xfail "alpha-*-*" "mips-*-*"
 365     set description "step into xmalloc call"
 366     gdb_test_multiple "step" "$description" {
 367         -re "ncmd = 0;.*$gdb_prompt $" {
 368             set stepped_back 1
 369             send_gdb "step\n"
 370             exp_continue
 371         }
 372         -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 373             set stepped_back 1
 374             send_gdb "step\n"
 375             exp_continue
 376         }
 377         -re "dirsize = 1;.*$gdb_prompt $" {
 378             set stepped_back 1
 379             send_gdb "step\n"
 380             exp_continue
 381         }
 382         -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 383             if { $stepped_back == 1 } {
 384                 send_gdb "step\n"
 385                 exp_continue
 386             } else {
 387                 fail "$description"
 388             }
 389         }
 390         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 391             pass "$description"
 392         }
 393         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 394             pass "$description (no source available)"
 395         }
 396         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 397             pass "$description (no source available)"
 398         }
 399     }
 400
 401     # start the "xgdb" process
 402     if [target_info exists gdb,noinferiorio] {
 403         # Maybe testing with a local extended-remote gdbserver.  With
 404         # no way to interact with inferior GDB, all we can do is let
 405         # it run.
 406         send_gdb "continue\n"
 407         # Wait a bit while the inferior gdb gets to its prompt.
 408         sleep 1
 409     } else {
 410         set test "xgdb is at prompt"
 411         gdb_test_multiple "continue" $test {
 412             -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 $" {
 413                 pass $test
 414             }
 415         }
 416
 417         # set xgdb prompt so we can tell which is which
 418         gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" {
 419             -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" {
 420                 pass "Set xgdb prompt"
 421             }
 422         }
 423     }
 424
 425     # kill the xgdb process
 426     set description "send ^C to child process"
 427     send_gdb "\003"
 428     gdb_expect {
 429         -re "Program received signal SIGINT.*$gdb_prompt $" {
 430             pass "$description"
 431         }
 432         -re ".*$gdb_prompt $" {
 433             fail "$description"
 434         }
 435         timeout {
 436             fail "$description (timeout)"
 437         }
 438     }
 439
 440     set description "send SIGINT signal to child process"
 441     gdb_test "signal SIGINT" \
 442         "Continuing with signal SIGINT.*" \
 443         "$description"
 444
 445     # get a stack trace
 446     #
 447     # This fails on some linux systems for unknown reasons.  On the
 448     # systems where it fails, sometimes it works fine when run manually.
 449     # The testsuite failures may not be limited to just aout systems.
 450     setup_xfail "i*86-pc-linuxaout-gnu"
 451     set description "backtrace through signal handler"
 452     gdb_test_multiple "backtrace" "$description" {
 453         -re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$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     }
 466
 467
 468     # Set the timeout back to the value it had when we were called.
 469     set timeout $oldtimeout
 470     verbose "Timeout is now $timeout seconds" 2
 471
 472     # Restart gdb in case next test expects it to be started already.
 473     return 0
 474 }
 475
 476 # Run the test with self.
 477 # Copy the file executable file in case this OS doesn't like to edit its own
 478 # text space.
 479
 480 set GDB_FULLPATH [find_gdb $GDB]
 481
 482 # Remove any old copy lying around.
 483 remote_file host delete x$tool
 484
 485 gdb_start
 486 set file [remote_download host $GDB_FULLPATH x$tool]
 487 set result [test_with_self $file]
 488 gdb_exit
 489 catch "remote_file host delete $file"
 490
 491 if {$result <0} then {
 492     warning "Couldn't test self"
 493     return -1
 494 }