gdb/testsuite/gdb.base/selftest.exp

   1 #   Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000
   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 < 22} {incr count} {
  56         send_gdb "list\n"
  57         gdb_expect {
  58             -re ".*context = data.*$gdb_prompt $" {
  59                 set description "step over context initialization"
  60                 set command "step"
  61             }
  62             -re ".*argc = context->argc.*$gdb_prompt $" {
  63                 set description "step over argc initialization"
  64                 set command "step"
  65             }
  66             -re ".*argv = context->argv.*$gdb_prompt $" {
  67                 set description "step over argv initialization"
  68                 set command "step"
  69             }
  70             -re ".*quiet = 0.*$gdb_prompt $" {
  71                 set description "step over quiet initialization"
  72                 set command "step"
  73             }
  74             -re ".*batch = 0.*$gdb_prompt $" {
  75                 set description "step over batch initialization"
  76                 set command "step"
  77             }
  78             -re ".*symarg = NULL.*$gdb_prompt $" {
  79                 set description "step over symarg initialization"
  80                 set command "step"
  81             }
  82             -re ".*execarg = NULL.*$gdb_prompt $" {
  83                 set description "step over execarg initialization"
  84                 set command "step"
  85             }
  86             -re ".*corearg = NULL.*$gdb_prompt $" {
  87                 set description "step over corearg initialization"
  88                 set command "step"
  89             }
  90             -re ".*cdarg = NULL.*$gdb_prompt $" {
  91                 set description "step over cdarg initialization"
  92                 set command "step"
  93             }
  94             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  95                 set description "step over ttyarg initialization"
  96                 set command "step"
  97             }
  98             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
  99                 set description "next over get_run_time and everything it calls"
 100                 set command "next"
 101             }
 102             -re ".*START_PROGRESS.*$gdb_prompt $" {
 103                 set description "next over START_PROGRESS and everything it calls"
 104                 set command "next"
 105             }
 106             -re ".*mac_init.*$gdb_prompt $" {
 107                 set description "next over mac_init and everything it calls"
 108                 set command "next"
 109             }
 110             -re ".*init_malloc.*$gdb_prompt $" {
 111                 set description "next over init_malloc and everything it calls"
 112                 set command "next"
 113             }
 114             -re ".*count . 0x3.*$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 "\[ \t\]+\{\r\n$gdb_prompt $" {
 146                 setup_xfail "mips-*-irix5*"
 147                 fail "$description ended up at odd location"
 148             }
 149             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 150                 setup_xfail "rs6000-*-aix3*"
 151                 fail "must be able to list source lines"
 152                 return
 153             }
 154             -re ".*$gdb_prompt $" {
 155                 fail "unknown source line after $description"
 156                 return
 157             }
 158             default {
 159                 fail "unknown source line near main"
 160                 return
 161             }
 162         }
 163         send_gdb "$command\n"
 164         gdb_expect {
 165             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 166                 fail "$description (no source available)"
 167             }
 168             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 169                 fail "$description (no source available)"
 170             }
 171             -re ".*$gdb_prompt $" {
 172                 pass "$description"
 173             }
 174             timeout {
 175                 fail "$description (timeout)"
 176             }
 177         }
 178     }
 179 }
 180
 181 proc test_with_self { executable } {
 182     global gdb_prompt
 183     global tool
 184     global det_file
 185     global decimal
 186     global timeout
 187
 188     # load yourself into the debugger
 189     # This can take a relatively long time, particularly for testing where
 190     # the executable is being accessed over a network, or where gdb does not
 191     # support partial symbols for a particular target and has to load the
 192     # entire symbol table.  Set the timeout to 10 minutes, which should be
 193     # adequate for most environments (it *has* timed out with 5 min on a
 194     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 195     # After gdb is started, set the timeout to 30 seconds for the duration
 196     # of this test, and then back to the original value.
 197
 198     set oldtimeout $timeout
 199     set timeout 600
 200     verbose "Timeout is now $timeout seconds" 2
 201     if {[gdb_load $executable] <0} then {
 202         set timeout $oldtimeout
 203         verbose "Timeout is now $timeout seconds" 2
 204         return -1
 205     }
 206     set timeout $oldtimeout
 207     verbose "Timeout is now $timeout seconds" 2
 208
 209     # disassemble yourself
 210     gdb_test "x/10i main" \
 211             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 212             "Disassemble main"
 213
 214     # Set a breakpoint at main
 215     gdb_test "break captured_main" \
 216             "Breakpoint.*at.* file.*, line.*" \
 217             "breakpoint in captured_main"
 218
 219     # We'll need this when we send a ^C to GDB.  Need to do it before we
 220     # run the program and gdb starts saving and restoring tty states.
 221     # On Ultrix, we don't need it and it is really slow (because shell_escape
 222     # doesn't use vfork).
 223     if ![istarget "*-*-ultrix*"] then {
 224         gdb_test "shell stty intr '^C'" "" \
 225             "set interrupt character in test_with_self"
 226     }
 227
 228     # FIXME: If we put this after the run to main, the first list
 229     # command doesn't print the same line as the current line where
 230     # gdb is stopped.
 231     gdb_test "set listsize 1" "" "set listsize to 1"
 232
 233     # run yourself
 234     # It may take a very long time for the inferior gdb to start (lynx),
 235     # so we bump it back up for the duration of this command.
 236     set timeout 600
 237
 238     set description "run until breakpoint at captured_main"
 239     send_gdb "run -nw\n"
 240     gdb_expect {
 241         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
 242             pass "$description"
 243         }
 244         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
 245             xfail "$description (line numbers scrambled?)"
 246         }
 247         -re "vfork: No more processes.*$gdb_prompt $" {
 248             fail "$description (out of virtual memory)"
 249             set timeout $oldtimeout
 250             verbose "Timeout is now $timeout seconds" 2
 251             return -1
 252         }
 253         -re ".*$gdb_prompt $" {
 254             fail "$description"
 255             set timeout $oldtimeout
 256             verbose "Timeout is now $timeout seconds" 2
 257             return -1
 258         }
 259         timeout {
 260             fail "$description (timeout)"
 261         }
 262     }
 263
 264     set timeout $oldtimeout
 265     verbose "Timeout is now $timeout seconds" 2
 266
 267     # do we have a version number ?
 268     send_gdb "print version\n"
 269     gdb_expect {
 270         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 271             pass "printed version as string"
 272         }
 273         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 274             pass "printed version as pointer"
 275         }
 276         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 277             pass "printed version with cast"
 278         }
 279         -re ".*$gdb_prompt $"   { fail "printed version" }
 280         timeout         { fail "(timeout) printed version" }
 281     }
 282
 283     do_steps_and_nexts
 284
 285     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 286
 287     # do_steps_and_nexts left us ready to execute an xmalloc call,
 288     # so give that a try.
 289     # If we don't actually enter the xmalloc call when we give a
 290     # step command that seems like a genuine bug.  It seems to happen
 291     # on most RISC processors.
 292     setup_xfail "alpha-*-*" "mips-*-*"
 293     set description "step into xmalloc call"
 294     send_gdb "step\n"
 295     gdb_expect {
 296         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 297             pass "$description"
 298         }
 299         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 300             pass "$description (no source available)"
 301         }
 302         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 303             pass "$description (no source available)"
 304         }
 305         -re ".*$gdb_prompt $" {
 306             fail "$description"
 307         }
 308         timeout {
 309             fail "$description (timeout)"
 310         }
 311     }
 312
 313     # start the "xgdb" process
 314     send_gdb "continue\n"
 315     gdb_expect {
 316         -re "GNU gdb \[0-9\.\]*.*
 317 Copyright \[0-9\]* Free Software Foundation, Inc.*
 318 GDB is free software, covered by the GNU General Public License, and you are.*
 319 welcome to change it and/or distribute copies of it under certain conditions.*
 320 Type \"show copying\" to see the conditions.*
 321 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 322 This GDB was configured as .*$gdb_prompt $"\
 323             { pass "xgdb is at prompt" }
 324         -re "GDB is free software and you are welcome to distribute copies of it.*
 325  under certain conditions; type \"show copying\" to see the conditions..*
 326 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 327 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 328             { pass "xgdb is at prompt (obsolescent gdb)" }
 329         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 330         timeout             { fail "(timeout) xgdb is at prompt" }
 331     }
 332
 333     # set xgdb prompt so we can tell which is which
 334     send_gdb "set prompt (xgdb) \n"
 335     gdb_expect {
 336         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 337         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 338         default                         { fail "(timeout) Set xgdb prompt" }
 339     }
 340
 341     # kill the xgdb process
 342     set description "send ^C to child process"
 343     send_gdb "\003"
 344     gdb_expect {
 345         -re "Program received signal SIGINT.*$gdb_prompt $" {
 346             pass "$description"
 347         }
 348         -re ".*$gdb_prompt $" {
 349             fail "$description"
 350         }
 351         timeout {
 352             fail "$description (timeout)"
 353         }
 354     }
 355
 356     set description "send SIGINT signal to child process"
 357     send_gdb "signal SIGINT\n"
 358     gdb_expect {
 359         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 360             pass "$description"
 361         }
 362         -re ".*$gdb_prompt $" {
 363             fail "$description"
 364         }
 365         timeout {
 366             fail "$description (timeout)"
 367         }
 368     }
 369
 370     # get a stack trace
 371     #
 372     # This fails on some linux systems for unknown reasons.  On the
 373     # systems where it fails, sometimes it works fine when run manually.
 374     # The testsuite failures may not be limited to just aout systems.
 375     setup_xfail "i*86-pc-linuxaout-gnu"
 376     set description "backtrace through signal handler"
 377     send_gdb "backtrace\n"
 378     gdb_expect {
 379         -re "#0.*read.*in main \\(.*\\) at .*main\\.c.*$gdb_prompt $" {
 380             pass "$description"
 381         }
 382         -re ".*$gdb_prompt $" {
 383             # On the alpha, we hit the infamous problem about gdb
 384             # being unable to get the frame pointer (mentioned in
 385             # gdb/README).  As it is intermittent, there is no way to
 386             # XFAIL it which will give us an XPASS if the problem goes
 387             # away.
 388             setup_xfail "alpha*-*-osf*"
 389             fail "$description"
 390         }
 391         timeout {
 392             fail "$description (timeout)"
 393         }
 394     }
 395
 396
 397     # Set the timeout back to the value it had when we were called.
 398     set timeout $oldtimeout
 399     verbose "Timeout is now $timeout seconds" 2
 400
 401     # Restart gdb in case next test expects it to be started already.
 402     return 0
 403 }
 404
 405 # Find a pathname to a file that we would execute if the shell was asked
 406 # to run $arg using the current PATH.
 407
 408 proc find_gdb { arg } {
 409
 410     # If the arg directly specifies an existing executable file, then
 411     # simply use it.
 412
 413     if [file executable $arg] then {
 414         return $arg
 415     }
 416
 417     set result [which $arg]
 418     if [string match "/" [ string range $result 0 0 ]] then {
 419         return $result
 420     }
 421
 422     # If everything fails, just return the unqualified pathname as default
 423     # and hope for best.
 424
 425     return $arg
 426 }
 427
 428 # Run the test with self.
 429 # Copy the file executable file in case this OS doesn't like to edit its own
 430 # text space.
 431
 432 set GDB_FULLPATH [find_gdb $GDB]
 433
 434 # Remove any old copy lying around.
 435 remote_file host delete x$tool
 436
 437 gdb_start
 438 set file [remote_download host $GDB_FULLPATH x$tool]
 439 set result [test_with_self $file];
 440 gdb_exit;
 441 catch "remote_file host delete $file";
 442
 443 if {$result <0} then {
 444     warning "Couldn't test self"
 445     return -1
 446 }