gdb/testsuite/gdb.gdb/observer.exp

   1 # Copyright 2003, 2004 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 # This file was written by Joel Brobecker (brobecker@gnat.com), derived
  18 # from xfullpath.exp.
  19
  20 if $tracelevel then {
  21     strace $tracelevel
  22 }
  23
  24 set prms_id 0
  25 set bug_id 0
  26
  27 # are we on a target board
  28 if [is_remote target] {
  29     return
  30 }
  31
  32 proc setup_test { executable } {
  33     global gdb_prompt
  34     global timeout
  35
  36     # load yourself into the debugger
  37     # This can take a relatively long time, particularly for testing where
  38     # the executable is being accessed over a network, or where gdb does not
  39     # support partial symbols for a particular target and has to load the
  40     # entire symbol table.  Set the timeout to 10 minutes, which should be
  41     # adequate for most environments (it *has* timed out with 5 min on a
  42     # SPARCstation SLC under moderate load, so this isn't unreasonable).
  43     # After gdb is started, set the timeout to 30 seconds for the duration
  44     # of this test, and then back to the original value.
  45
  46     set oldtimeout $timeout
  47     set timeout 600
  48     verbose "Timeout is now $timeout seconds" 2
  49     if {[gdb_load $executable] <0} then {
  50         set timeout $oldtimeout
  51         verbose "Timeout is now $timeout seconds" 2
  52         return -1
  53     }
  54     set timeout $oldtimeout
  55     verbose "Timeout is now $timeout seconds" 2
  56
  57     # Set a breakpoint at main
  58     gdb_test "break captured_main" \
  59             "Breakpoint.*at.* file.*, line.*" \
  60             "breakpoint in captured_main"
  61
  62     # run yourself
  63     # It may take a very long time for the inferior gdb to start (lynx),
  64     # so we bump it back up for the duration of this command.
  65     set timeout 600
  66
  67     set description "run until breakpoint at captured_main"
  68     gdb_test_multiple "run -nw" "$description" {
  69         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
  70             pass "$description"
  71         }
  72         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
  73             xfail "$description (line numbers scrambled?)"
  74         }
  75         -re "vfork: No more processes.*$gdb_prompt $" {
  76             fail "$description (out of virtual memory)"
  77             set timeout $oldtimeout
  78             verbose "Timeout is now $timeout seconds" 2
  79             return -1
  80         }
  81         -re ".*$gdb_prompt $" {
  82             fail "$description"
  83             set timeout $oldtimeout
  84             verbose "Timeout is now $timeout seconds" 2
  85             return -1
  86         }
  87     }
  88
  89     set timeout $oldtimeout
  90     verbose "Timeout is now $timeout seconds" 2
  91
  92     return 0
  93 }
  94
  95 proc attach_first_observer { message } {
  96     gdb_test "set \$first_obs = observer_attach_normal_stop (&observer_test_first_notification_function)" \
  97         "" "$message; attach first observer"
  98 }
  99
 100 proc attach_second_observer { message } {
 101     gdb_test "set \$second_obs = observer_attach_normal_stop (&observer_test_second_notification_function)" \
 102         "" "$message; attach second observer"
 103 }
 104
 105 proc attach_third_observer { message } {
 106     gdb_test "set \$third_obs = observer_attach_normal_stop (&observer_test_third_notification_function)" \
 107         "" "$message; attach third observer"
 108 }
 109
 110 proc detach_first_observer { message } {
 111     gdb_test "call observer_detach_normal_stop (\$first_obs)" \
 112         "" "$message; detach first observer"
 113 }
 114
 115 proc detach_second_observer { message } {
 116     gdb_test "call observer_detach_normal_stop (\$second_obs)" \
 117         "" "$message; detach second observer"
 118 }
 119
 120 proc detach_third_observer { message } {
 121     gdb_test "call observer_detach_normal_stop (\$third_obs)" \
 122         "" "$message; detach third observer"
 123 }
 124
 125 proc check_counters { first second third message } {
 126     gdb_test "print observer_test_first_observer" \
 127         ".\[0-9\]+ =.*$first" \
 128         "$message; check first observer counter value"
 129     gdb_test "print observer_test_second_observer" \
 130         ".\[0-9\]+ =.*$second" \
 131         "$message; check second observer counter value"
 132     gdb_test "print observer_test_third_observer" \
 133         ".\[0-9\]+ =.*$third" \
 134         "$message; check third observer counter value"
 135 }
 136
 137 proc reset_counters { message } {
 138     gdb_test "set variable observer_test_first_observer = 0" "" \
 139         "$message; reset first observer counter"
 140     gdb_test "set variable observer_test_second_observer = 0" "" \
 141         "$message; reset second observer counter"
 142     gdb_test "set variable observer_test_third_observer = 0" "" \
 143         "$message; reset third observer counter"
 144 }
 145
 146 proc test_normal_stop_notifications { first second third message args } {
 147     # Do any initialization
 148     for {set i 0} {$i < [llength $args]} {incr i} {
 149         [lindex $args $i] $message
 150     }
 151     reset_counters $message
 152     # Call observer_notify_normal_stop.  Note that this procedure
 153     # takes one argument, but this argument is ignored by the observer
 154     # callbacks we have installed.  So we just pass an arbitrary value.
 155     gdb_test "call observer_notify_normal_stop (0)" "" \
 156         "$message; sending notification"
 157     check_counters $first $second $third $message
 158 }
 159
 160 proc test_observer_normal_stop { executable } {
 161
 162     set setup_result [setup_test $executable]
 163     if {$setup_result <0} then {
 164         return -1
 165     }
 166
 167     # First, try sending a notification without any observer attached.
 168     test_normal_stop_notifications 0 0 0 "no observer attached"
 169
 170     # Now, attach one observer, and send a notification.
 171     test_normal_stop_notifications 0 1 0 "second observer attached" \
 172         attach_second_observer
 173
 174     # Remove the observer, and send a notification.
 175     test_normal_stop_notifications 0 0 0 "second observer detached" \
 176         detach_second_observer
 177
 178     # With a new observer.
 179     test_normal_stop_notifications 1 0 0 "1st observer added" \
 180         attach_first_observer
 181
 182     # With 2 observers.
 183     test_normal_stop_notifications 1 1 0 "2nd observer added" \
 184         attach_second_observer
 185
 186     # With 3 observers.
 187     test_normal_stop_notifications 1 1 1 "3rd observer added" \
 188         attach_third_observer
 189
 190     # Remove middle observer.
 191     test_normal_stop_notifications 1 0 1 "2nd observer removed" \
 192         detach_second_observer
 193
 194     # Remove first observer.
 195     test_normal_stop_notifications 0 0 1 "1st observer removed" \
 196         detach_first_observer
 197
 198     # Remove last observer.
 199     test_normal_stop_notifications 0 0 0 "3rd observer removed" \
 200         detach_third_observer
 201
 202     # Go back to 3 observers, and remove them in a different order...
 203     test_normal_stop_notifications 1 1 1 "three observers added" \
 204         attach_first_observer \
 205         attach_second_observer \
 206         attach_third_observer
 207
 208     # Remove the third observer.
 209     test_normal_stop_notifications 1 1 0 "third observer removed" \
 210         detach_third_observer
 211
 212     # Remove the second observer.
 213     test_normal_stop_notifications 1 0 0 "second observer removed" \
 214         detach_second_observer
 215
 216     # Remove the first observer, no more observers.
 217     test_normal_stop_notifications 0 0 0 "first observer removed" \
 218         detach_first_observer
 219
 220     return 0
 221 }
 222
 223 # Find a pathname to a file that we would execute if the shell was asked
 224 # to run $arg using the current PATH.
 225
 226 proc find_gdb { arg } {
 227
 228     # If the arg directly specifies an existing executable file, then
 229     # simply use it.
 230
 231     if [file executable $arg] then {
 232         return $arg
 233     }
 234
 235     set result [which $arg]
 236     if [string match "/" [ string range $result 0 0 ]] then {
 237         return $result
 238     }
 239
 240     # If everything fails, just return the unqualified pathname as default
 241     # and hope for best.
 242
 243     return $arg
 244 }
 245
 246 # Run the test with self.
 247 # Copy the file executable file in case this OS doesn't like to edit its own
 248 # text space.
 249
 250 set GDB_FULLPATH [find_gdb $GDB]
 251
 252 # Remove any old copy lying around.
 253 remote_file host delete x$tool
 254
 255 gdb_start
 256 set file [remote_download host $GDB_FULLPATH x$tool]
 257 set result [test_observer_normal_stop $file];
 258 gdb_exit;
 259 catch "remote_file host delete $file";
 260
 261 if {$result <0} then {
 262     warning "Couldn't test self"
 263     return -1
 264 }