gdb/testsuite/gdb.base/a1-selftest.exp

   1 #   Copyright (C) 1988, 1990, 1991, 1992, 1994, 1997 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 2 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, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-gdb@prep.ai.mit.edu
  19
  20 # This file was written by Rob Savoye. (rob@cygnus.com)
  21
  22 if $tracelevel then {
  23     strace $tracelevel
  24 }
  25
  26 set prms_id 0
  27 set bug_id 0
  28
  29 # are we on a target board
  30 if [is_remote target] {
  31     return
  32 }
  33
  34 if [istarget "m68k*-*-hpux*"] then {
  35     # The top-level makefile passes CFLAGS= (no -g) for hp300.  This probably
  36     # should be fixed (it is only needed for gcc bootstrapping, not gdb),
  37     # but until then.....
  38     setup_xfail "*-*-*"
  39     fail "cannot test self if compiled without debug info"
  40     return -1
  41 }
  42
  43 # Not all of the lines of code near the start of main are executed for
  44 # every machine.  Also, optimization may reorder some of the lines.
  45 # So all we do is try to step or next over everything until we get
  46 # to a line that we know is always executed.
  47
  48 proc do_steps_and_nexts {} {
  49     global gdb_prompt
  50     global srcdir
  51
  52     gdb_reinitialize_dir $srcdir/..
  53
  54     for {set count 0} {$count < 20} {incr count} {
  55         send_gdb "list\n"
  56         gdb_expect {
  57             -re ".*symarg = NULL.*$gdb_prompt $" {
  58                 set description "step over symarg initialization"
  59                 set command "step"
  60             }
  61             -re ".*execarg = NULL.*$gdb_prompt $" {
  62                 set description "step over execarg initialization"
  63                 set command "step"
  64             }
  65             -re ".*corearg = NULL.*$gdb_prompt $" {
  66                 set description "step over corearg initialization"
  67                 set command "step"
  68             }
  69             -re ".*cdarg = NULL.*$gdb_prompt $" {
  70                 set description "step over cdarg initialization"
  71                 set command "step"
  72             }
  73             -re ".*ttyarg = NULL.*$gdb_prompt $" {
  74                 set description "step over ttyarg initialization"
  75                 set command "step"
  76             }
  77             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
  78                 set description "next over get_run_time and everything it calls"
  79                 set command "next"
  80             }
  81             -re ".*START_PROGRESS.*$gdb_prompt $" {
  82                 set description "next over START_PROGRESS and everything it calls"
  83                 set command "next"
  84             }
  85             -re ".*mac_init.*$gdb_prompt $" {
  86                 set description "next over mac_init and everything it calls"
  87                 set command "next"
  88             }
  89             -re ".*init_malloc.*$gdb_prompt $" {
  90                 set description "next over init_malloc and everything it calls"
  91                 set command "next"
  92             }
  93             -re ".*count . 0x3.*$gdb_prompt $" {
  94                 set description "next over conditional stack alignment code 1"
  95                 set command "next"
  96             }
  97             -re ".*if .i != 0.*$gdb_prompt $" {
  98                 set description "next over conditional stack alignment code 2"
  99                 set command "next"
 100             }
 101             -re ".*alloca .i - 4.*$gdb_prompt $" {
 102                 set description "next over conditional stack alignment alloca"
 103                 set command "next"
 104             }
 105             -re ".*SET_TOP_LEVEL.*$gdb_prompt $" {
 106                 set description "next over SET_TOP_LEVEL call"
 107                 set command "next"
 108             }
 109             -re ".*cmdsize = 1.*$gdb_prompt $" {
 110                 set description "step over cmdsize initialization"
 111                 set command "next"
 112             }
 113             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 114                 set description "next over cmdarg initialization via xmalloc"
 115                 set command "next"
 116             }
 117             -re ".*ncmd = 0.*$gdb_prompt $" {
 118                 set description "next over ncmd initialization"
 119                 set command "next"
 120             }
 121             -re ".*dirsize = 1.*$gdb_prompt $" {
 122                 set description "next over dirsize initialization"
 123                 set command "next"
 124             }
 125             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 126                 return
 127             }
 128             -re "\[ \t\]+\{\r\n$gdb_prompt $" {
 129                 setup_xfail "mips-*-irix5*"
 130                 fail "$description ended up at odd location"
 131             }
 132             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 133                 setup_xfail "rs6000-*-aix3*"
 134                 fail "must be able to list source lines"
 135                 return
 136             }
 137             -re ".*$gdb_prompt $" {
 138                 fail "unknown source line after $description"
 139                 return
 140             }
 141             default {
 142                 fail "unknown source line near main"
 143                 return
 144             }
 145         }
 146         send_gdb "$command\n"
 147         gdb_expect {
 148             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 149                 fail "$description (no source available)"
 150             }
 151             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 152                 fail "$description (no source available)"
 153             }
 154             -re ".*$gdb_prompt $" {
 155                 pass "$description"
 156             }
 157             timeout {
 158                 fail "$description (timeout)"
 159             }
 160         }
 161     }
 162 }
 163
 164 proc test_with_self { executable } {
 165     global gdb_prompt
 166     global tool
 167     global det_file
 168     global decimal
 169     global timeout
 170
 171     # load yourself into the debugger
 172     # This can take a relatively long time, particularly for testing where
 173     # the executable is being accessed over a network, or where gdb does not
 174     # support partial symbols for a particular target and has to load the
 175     # entire symbol table.  Set the timeout to 10 minutes, which should be
 176     # adequate for most environments (it *has* timed out with 5 min on a
 177     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 178     # After gdb is started, set the timeout to 30 seconds for the duration
 179     # of this test, and then back to the original value.
 180
 181     set oldtimeout $timeout
 182     set timeout 600
 183     verbose "Timeout is now $timeout seconds" 2
 184     if {[gdb_load $executable] <0} then {
 185         set timeout $oldtimeout
 186         verbose "Timeout is now $timeout seconds" 2
 187         return -1
 188     }
 189     set timeout $oldtimeout
 190     verbose "Timeout is now $timeout seconds" 2
 191
 192     # disassemble yourself
 193     gdb_test "x/10i main" \
 194             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 195             "Disassemble main"
 196
 197     # Set a breakpoint at main
 198     gdb_test "break main" \
 199             "Breakpoint.*at.* file.*, line.*" \
 200             "breakpoint in main"
 201
 202     # We'll need this when we send a ^C to GDB.  Need to do it before we
 203     # run the program and gdb starts saving and restoring tty states.
 204     # On Ultrix, we don't need it and it is really slow (because shell_escape
 205     # doesn't use vfork).
 206     if ![istarget "*-*-ultrix*"] then {
 207         gdb_test "shell stty intr '^C'" "" \
 208             "set interrupt character in test_with_self"
 209     }
 210
 211     # FIXME: If we put this after the run to main, the first list
 212     # command doesn't print the same line as the current line where
 213     # gdb is stopped.
 214     gdb_test "set listsize 1" "" "set listsize to 1"
 215
 216     # run yourself
 217     # It may take a very long time for the inferior gdb to start (lynx),
 218     # so we bump it back up for the duration of this command.
 219     set timeout 600
 220
 221     set description "run until breakpoint at main"
 222     send_gdb "run -nw\n"
 223     gdb_expect {
 224         -re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.* at .*main.c:.*$gdb_prompt $" {
 225             pass "$description"
 226         }
 227         -re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.*$gdb_prompt $" {
 228             xfail "$description (line numbers scrambled?)"
 229         }
 230         -re "vfork: No more processes.*$gdb_prompt $" {
 231             fail "$description (out of virtual memory)"
 232             set timeout $oldtimeout
 233             verbose "Timeout is now $timeout seconds" 2
 234             return -1
 235         }
 236         -re ".*$gdb_prompt $" {
 237             fail "$description"
 238             set timeout $oldtimeout
 239             verbose "Timeout is now $timeout seconds" 2
 240             return -1
 241         }
 242         timeout {
 243             fail "$description (timeout)"
 244         }
 245     }
 246
 247     set timeout $oldtimeout
 248     verbose "Timeout is now $timeout seconds" 2
 249
 250     # do we have a version number ?
 251     send_gdb "print version\n"
 252     gdb_expect {
 253         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 254             pass "printed version"
 255         }
 256         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 257             pass "printed version with cast"
 258         }
 259         -re ".*$gdb_prompt $"   { fail "printed version" }
 260         timeout         { fail "(timeout) printed version" }
 261     }
 262
 263     do_steps_and_nexts
 264
 265     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 266
 267     # do_steps_and_nexts left us ready to execute an xmalloc call,
 268     # so give that a try.
 269     # If we don't actually enter the xmalloc call when we give a
 270     # step command that seems like a genuine bug.  It seems to happen
 271     # on most RISC processors.
 272     setup_xfail "alpha-*-*" "hppa*-*-*" "mips-*-*"
 273     set description "step into xmalloc call"
 274     send_gdb "step\n"
 275     gdb_expect {
 276         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 277             pass "$description"
 278         }
 279         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 280             pass "$description (no source available)"
 281         }
 282         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 283             pass "$description (no source available)"
 284         }
 285         -re ".*$gdb_prompt $" {
 286             fail "$description"
 287         }
 288         timeout {
 289             fail "$description (timeout)"
 290         }
 291     }
 292
 293     # start the "xgdb" process
 294     send_gdb "continue\n"
 295     gdb_expect {
 296         -re "GNU gdb \[0-9\.\]*.*
 297 Copyright \[0-9\]* Free Software Foundation, Inc.*
 298 GDB is free software, covered by the GNU General Public License, and you are.*
 299 welcome to change it and/or distribute copies of it under certain conditions.*
 300 Type \"show copying\" to see the conditions.*
 301 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 302 This GDB was configured as .*$gdb_prompt $"\
 303             { pass "xgdb is at prompt" }
 304         -re "GDB is free software and you are welcome to distribute copies of it.*
 305  under certain conditions; type \"show copying\" to see the conditions..*
 306 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 307 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 308             { pass "xgdb is at prompt (obsolescent gdb)" }
 309         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 310         timeout             { fail "(timeout) xgdb is at prompt" }
 311     }
 312
 313     # set xgdb prompt so we can tell which is which
 314     send_gdb "set prompt (xgdb) \n"
 315     gdb_expect {
 316         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 317         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 318         default                         { fail "(timeout) Set xgdb prompt" }
 319     }
 320
 321     # kill the xgdb process
 322     set description "send ^C to child process"
 323     send_gdb "\003"
 324     gdb_expect {
 325         -re "Program received signal SIGINT.*$gdb_prompt $" {
 326             pass "$description"
 327         }
 328         -re ".*$gdb_prompt $" {
 329             fail "$description"
 330         }
 331         timeout {
 332             fail "$description (timeout)"
 333         }
 334     }
 335
 336     set description "send SIGINT signal to child process"
 337     send_gdb "signal SIGINT\n"
 338     gdb_expect {
 339         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 340             pass "$description"
 341         }
 342         -re ".*$gdb_prompt $" {
 343             fail "$description"
 344         }
 345         timeout {
 346             fail "$description (timeout)"
 347         }
 348     }
 349
 350     # get a stack trace
 351     #
 352     # This fails on some linux systems for unknown reasons.  On the
 353     # systems where it fails, sometimes it works fine when run manually.
 354     # The testsuite failures may not be limited to just aout systems.
 355     setup_xfail "i*86-pc-linuxaout-gnu" "hppa*-*-hpux*"
 356     set description "backtrace through signal handler"
 357     send_gdb "backtrace\n"
 358     gdb_expect {
 359         -re "#0.*read.*in main \\(.*\\) at .*main\\.c.*$gdb_prompt $" {
 360             pass "$description"
 361         }
 362         -re ".*$gdb_prompt $" {
 363             # On the alpha, we hit the infamous problem about gdb
 364             # being unable to get the frame pointer (mentioned in
 365             # gdb/README).  As it is intermittent, there is no way to
 366             # XFAIL it which will give us an XPASS if the problem goes
 367             # away.
 368             setup_xfail "alpha*-*-osf*"
 369             fail "$description"
 370         }
 371         timeout {
 372             fail "$description (timeout)"
 373         }
 374     }
 375
 376
 377     # Set the timeout back to the value it had when we were called.
 378     set timeout $oldtimeout
 379     verbose "Timeout is now $timeout seconds" 2
 380
 381     # Restart gdb in case next test expects it to be started already.
 382     return 0
 383 }
 384
 385 # Find a pathname to a file that we would execute if the shell was asked
 386 # to run $arg using the current PATH.
 387
 388 proc find_gdb { arg } {
 389
 390     # If the arg directly specifies an existing executable file, then
 391     # simply use it.
 392
 393     if [file executable $arg] then {
 394         return $arg
 395     }
 396
 397     set result [which $arg]
 398     if [string match "/" [ string range $result 0 0 ]] then {
 399         return $result
 400     }
 401
 402     # If everything fails, just return the unqualified pathname as default
 403     # and hope for best.
 404
 405     return $arg
 406 }
 407
 408 # Run the test with self.
 409 # Copy the file executable file in case this OS doesn't like to edit its own
 410 # text space.
 411
 412 set GDB_FULLPATH [find_gdb $GDB]
 413
 414 # Remove any old copy lying around.
 415 remote_file host delete x$tool
 416
 417 gdb_start
 418 set file [remote_download host $GDB_FULLPATH x$tool]
 419 set result [test_with_self $file];
 420 gdb_exit;
 421 catch "remote_file host delete $file";
 422
 423 if {$result <0} then {
 424     warning "Couldn't test self"
 425     return -1
 426 }