gdb/testsuite/gdb.base/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 $" {
  74                 set description "step over ttyarg initialization"
  75                 set command "step"
  76             }
  77             -re ".*interparg = NULL.*$gdb_prompt $" {
  78                 set description "step over interparg initialization"
  79                 set command "step"
  80             }
  81             -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
  82                 set description "next over get_run_time and everything it calls"
  83                 set command "next"
  84             }
  85             -re ".*START_PROGRESS.*$gdb_prompt $" {
  86                 set description "next over START_PROGRESS and everything it calls"
  87                 set command "next"
  88             }
  89             -re ".*mac_init.*$gdb_prompt $" {
  90                 set description "next over mac_init and everything it calls"
  91                 set command "next"
  92             }
  93             -re ".*init_malloc.*$gdb_prompt $" {
  94                 set description "next over init_malloc and everything it calls"
  95                 set command "next"
  96             }
  97             -re ".*count . 0x3.*$gdb_prompt $" {
  98                 set description "next over conditional stack alignment code 1"
  99                 set command "next"
 100             }
 101             -re ".*if .i != 0.*$gdb_prompt $" {
 102                 set description "next over conditional stack alignment code 2"
 103                 set command "next"
 104             }
 105             -re ".*alloca .i - 4.*$gdb_prompt $" {
 106                 set description "next over conditional stack alignment alloca"
 107                 set command "next"
 108             }
 109             -re ".*SET_TOP_LEVEL.*$gdb_prompt $" {
 110                 set description "next over SET_TOP_LEVEL call"
 111                 set command "next"
 112             }
 113             -re ".*cmdsize = 1.*$gdb_prompt $" {
 114                 set description "step over cmdsize initialization"
 115                 set command "next"
 116             }
 117             -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
 118                 set description "next over cmdarg initialization via xmalloc"
 119                 set command "next"
 120             }
 121             -re ".*ncmd = 0.*$gdb_prompt $" {
 122                 set description "next over ncmd initialization"
 123                 set command "next"
 124             }
 125             -re ".*dirsize = 1.*$gdb_prompt $" {
 126                 set description "next over dirsize initialization"
 127                 set command "next"
 128             }
 129             -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
 130                 return
 131             }
 132             -re "\[ \t\]+\{\r\n$gdb_prompt $" {
 133                 setup_xfail "mips-*-irix5*"
 134                 fail "$description ended up at odd location"
 135             }
 136             -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
 137                 setup_xfail "rs6000-*-aix3*"
 138                 fail "must be able to list source lines"
 139                 return
 140             }
 141             -re ".*$gdb_prompt $" {
 142                 fail "unknown source line after $description"
 143                 return
 144             }
 145             default {
 146                 fail "unknown source line near main"
 147                 return
 148             }
 149         }
 150         send_gdb "$command\n"
 151         gdb_expect {
 152             -re ".*No such file or directory.\r\n$gdb_prompt $" {
 153                 fail "$description (no source available)"
 154             }
 155             -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
 156                 fail "$description (no source available)"
 157             }
 158             -re ".*$gdb_prompt $" {
 159                 pass "$description"
 160             }
 161             timeout {
 162                 fail "$description (timeout)"
 163             }
 164         }
 165     }
 166 }
 167
 168 proc test_with_self { executable } {
 169     global gdb_prompt
 170     global tool
 171     global det_file
 172     global decimal
 173     global timeout
 174
 175     # load yourself into the debugger
 176     # This can take a relatively long time, particularly for testing where
 177     # the executable is being accessed over a network, or where gdb does not
 178     # support partial symbols for a particular target and has to load the
 179     # entire symbol table.  Set the timeout to 10 minutes, which should be
 180     # adequate for most environments (it *has* timed out with 5 min on a
 181     # SPARCstation SLC under moderate load, so this isn't unreasonable).
 182     # After gdb is started, set the timeout to 30 seconds for the duration
 183     # of this test, and then back to the original value.
 184
 185     set oldtimeout $timeout
 186     set timeout 600
 187     verbose "Timeout is now $timeout seconds" 2
 188     if {[gdb_load $executable] <0} then {
 189         set timeout $oldtimeout
 190         verbose "Timeout is now $timeout seconds" 2
 191         return -1
 192     }
 193     set timeout $oldtimeout
 194     verbose "Timeout is now $timeout seconds" 2
 195
 196     # disassemble yourself
 197     gdb_test "x/10i main" \
 198             "x/10i.*main.*main.$decimal.*main.$decimal.*" \
 199             "Disassemble main"
 200
 201     # Set a breakpoint at main
 202     gdb_test "break main" \
 203             "Breakpoint.*at.* file.*, line.*" \
 204             "breakpoint in main"
 205
 206     # We'll need this when we send a ^C to GDB.  Need to do it before we
 207     # run the program and gdb starts saving and restoring tty states.
 208     # On Ultrix, we don't need it and it is really slow (because shell_escape
 209     # doesn't use vfork).
 210     if ![istarget "*-*-ultrix*"] then {
 211         gdb_test "shell stty intr '^C'" "" \
 212             "set interrupt character in test_with_self"
 213     }
 214
 215     # FIXME: If we put this after the run to main, the first list
 216     # command doesn't print the same line as the current line where
 217     # gdb is stopped.
 218     gdb_test "set listsize 1" "" "set listsize to 1"
 219
 220     # run yourself
 221     # It may take a very long time for the inferior gdb to start (lynx),
 222     # so we bump it back up for the duration of this command.
 223     set timeout 600
 224
 225     set description "run until breakpoint at main"
 226     send_gdb "run -nw\n"
 227     gdb_expect {
 228         -re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.* at .*main.c:.*$gdb_prompt $" {
 229             pass "$description"
 230         }
 231         -re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.*$gdb_prompt $" {
 232             xfail "$description (line numbers scrambled?)"
 233         }
 234         -re "vfork: No more processes.*$gdb_prompt $" {
 235             fail "$description (out of virtual memory)"
 236             set timeout $oldtimeout
 237             verbose "Timeout is now $timeout seconds" 2
 238             return -1
 239         }
 240         -re ".*$gdb_prompt $" {
 241             fail "$description"
 242             set timeout $oldtimeout
 243             verbose "Timeout is now $timeout seconds" 2
 244             return -1
 245         }
 246         timeout {
 247             fail "$description (timeout)"
 248         }
 249     }
 250
 251     set timeout $oldtimeout
 252     verbose "Timeout is now $timeout seconds" 2
 253
 254     # do we have a version number ?
 255     send_gdb "print version\n"
 256     gdb_expect {
 257         -re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
 258             pass "printed version as string"
 259         }
 260         -re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
 261             pass "printed version as pointer"
 262         }
 263         -re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
 264             pass "printed version with cast"
 265         }
 266         -re ".*$gdb_prompt $"   { fail "printed version" }
 267         timeout         { fail "(timeout) printed version" }
 268     }
 269
 270     do_steps_and_nexts
 271
 272     gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
 273
 274     # do_steps_and_nexts left us ready to execute an xmalloc call,
 275     # so give that a try.
 276     # If we don't actually enter the xmalloc call when we give a
 277     # step command that seems like a genuine bug.  It seems to happen
 278     # on most RISC processors.
 279     setup_xfail "alpha-*-*" "mips-*-*"
 280     set description "step into xmalloc call"
 281     send_gdb "step\n"
 282     gdb_expect {
 283         -re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
 284             pass "$description"
 285         }
 286         -re ".*No such file or directory.\r\n$gdb_prompt $" {
 287             pass "$description (no source available)"
 288         }
 289         -re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
 290             pass "$description (no source available)"
 291         }
 292         -re ".*$gdb_prompt $" {
 293             fail "$description"
 294         }
 295         timeout {
 296             fail "$description (timeout)"
 297         }
 298     }
 299
 300     # start the "xgdb" process
 301     send_gdb "continue\n"
 302     gdb_expect {
 303         -re "GNU gdb \[0-9\.\]*.*
 304 Copyright \[0-9\]* Free Software Foundation, Inc.*
 305 GDB is free software, covered by the GNU General Public License, and you are.*
 306 welcome to change it and/or distribute copies of it under certain conditions.*
 307 Type \"show copying\" to see the conditions.*
 308 There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
 309 This GDB was configured as .*$gdb_prompt $"\
 310             { pass "xgdb is at prompt" }
 311         -re "GDB is free software and you are welcome to distribute copies of it.*
 312  under certain conditions; type \"show copying\" to see the conditions..*
 313 There is absolutely no warranty for GDB; type \"show warranty\" for details..*
 314 GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
 315             { pass "xgdb is at prompt (obsolescent gdb)" }
 316         -re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
 317         timeout             { fail "(timeout) xgdb is at prompt" }
 318     }
 319
 320     # set xgdb prompt so we can tell which is which
 321     send_gdb "set prompt (xgdb) \n"
 322     gdb_expect {
 323         -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"  { pass "Set xgdb prompt" }
 324         -re ".*$gdb_prompt $"           { fail "Set xgdb prompt" }
 325         default                         { fail "(timeout) Set xgdb prompt" }
 326     }
 327
 328     # kill the xgdb process
 329     set description "send ^C to child process"
 330     send_gdb "\003"
 331     gdb_expect {
 332         -re "Program received signal SIGINT.*$gdb_prompt $" {
 333             pass "$description"
 334         }
 335         -re ".*$gdb_prompt $" {
 336             fail "$description"
 337         }
 338         timeout {
 339             fail "$description (timeout)"
 340         }
 341     }
 342
 343     set description "send SIGINT signal to child process"
 344     send_gdb "signal SIGINT\n"
 345     gdb_expect {
 346         -re "Continuing with signal SIGINT.*$gdb_prompt $" {
 347             pass "$description"
 348         }
 349         -re ".*$gdb_prompt $" {
 350             fail "$description"
 351         }
 352         timeout {
 353             fail "$description (timeout)"
 354         }
 355     }
 356
 357     # get a stack trace
 358     #
 359     # This fails on some linux systems for unknown reasons.  On the
 360     # systems where it fails, sometimes it works fine when run manually.
 361     # The testsuite failures may not be limited to just aout systems.
 362     setup_xfail "i*86-pc-linuxaout-gnu" "hppa*-*-hpux*"
 363     set description "backtrace through signal handler"
 364     send_gdb "backtrace\n"
 365     gdb_expect {
 366         -re "#0.*read.*in main \\(.*\\) at .*main\\.c.*$gdb_prompt $" {
 367             pass "$description"
 368         }
 369         -re ".*$gdb_prompt $" {
 370             # On the alpha, we hit the infamous problem about gdb
 371             # being unable to get the frame pointer (mentioned in
 372             # gdb/README).  As it is intermittent, there is no way to
 373             # XFAIL it which will give us an XPASS if the problem goes
 374             # away.
 375             setup_xfail "alpha*-*-osf*"
 376             fail "$description"
 377         }
 378         timeout {
 379             fail "$description (timeout)"
 380         }
 381     }
 382
 383
 384     # Set the timeout back to the value it had when we were called.
 385     set timeout $oldtimeout
 386     verbose "Timeout is now $timeout seconds" 2
 387
 388     # Restart gdb in case next test expects it to be started already.
 389     return 0
 390 }
 391
 392 # Find a pathname to a file that we would execute if the shell was asked
 393 # to run $arg using the current PATH.
 394
 395 proc find_gdb { arg } {
 396
 397     # If the arg directly specifies an existing executable file, then
 398     # simply use it.
 399
 400     if [file executable $arg] then {
 401         return $arg
 402     }
 403
 404     set result [which $arg]
 405     if [string match "/" [ string range $result 0 0 ]] then {
 406         return $result
 407     }
 408
 409     # If everything fails, just return the unqualified pathname as default
 410     # and hope for best.
 411
 412     return $arg
 413 }
 414
 415 # Run the test with self.
 416 # Copy the file executable file in case this OS doesn't like to edit its own
 417 # text space.
 418
 419 set GDB_FULLPATH [find_gdb $GDB]
 420
 421 # Remove any old copy lying around.
 422 remote_file host delete x$tool
 423
 424 gdb_start
 425 set file [remote_download host $GDB_FULLPATH x$tool]
 426 set result [test_with_self $file];
 427 gdb_exit;
 428 catch "remote_file host delete $file";
 429
 430 if {$result <0} then {
 431     warning "Couldn't test self"
 432     return -1
 433 }