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
  50     set result [gdb_load $executable]
  51     set timeout $oldtimeout
  52     verbose "Timeout is now $timeout seconds" 2
  53
  54     if { [lindex $result 0] != "" } then {
  55         return -1
  56     }
  57
  58     # Set a breakpoint at main
  59     gdb_test "break captured_main" \
  60             "Breakpoint.*at.* file.*, line.*" \
  61             "breakpoint in captured_main"
  62
  63     # run yourself
  64     # It may take a very long time for the inferior gdb to start (lynx),
  65     # so we bump it back up for the duration of this command.
  66     set timeout 600
  67
  68     set description "run until breakpoint at captured_main"
  69     gdb_test_multiple "run -nw" "$description" {
  70         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
  71             pass "$description"
  72         }
  73         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
  74             xfail "$description (line numbers scrambled?)"
  75         }
  76         -re "vfork: No more processes.*$gdb_prompt $" {
  77             fail "$description (out of virtual memory)"
  78             set timeout $oldtimeout
  79             verbose "Timeout is now $timeout seconds" 2
  80             return -1
  81         }
  82         -re ".*$gdb_prompt $" {
  83             fail "$description"
  84             set timeout $oldtimeout
  85             verbose "Timeout is now $timeout seconds" 2
  86             return -1
  87         }
  88     }
  89
  90     set timeout $oldtimeout
  91     verbose "Timeout is now $timeout seconds" 2
  92
  93     return 0
  94 }
  95
  96 proc attach_first_observer { message } {
  97     gdb_test "set \$first_obs = observer_attach_normal_stop (&observer_test_first_notification_function)" \
  98         "" "$message; attach first observer"
  99 }
 100
 101 proc attach_second_observer { message } {
 102     gdb_test "set \$second_obs = observer_attach_normal_stop (&observer_test_second_notification_function)" \
 103         "" "$message; attach second observer"
 104 }
 105
 106 proc attach_third_observer { message } {
 107     gdb_test "set \$third_obs = observer_attach_normal_stop (&observer_test_third_notification_function)" \
 108         "" "$message; attach third observer"
 109 }
 110
 111 proc detach_first_observer { message } {
 112     gdb_test "call observer_detach_normal_stop (\$first_obs)" \
 113         "" "$message; detach first observer"
 114 }
 115
 116 proc detach_second_observer { message } {
 117     gdb_test "call observer_detach_normal_stop (\$second_obs)" \
 118         "" "$message; detach second observer"
 119 }
 120
 121 proc detach_third_observer { message } {
 122     gdb_test "call observer_detach_normal_stop (\$third_obs)" \
 123         "" "$message; detach third observer"
 124 }
 125
 126 proc check_counters { first second third message } {
 127     gdb_test "print observer_test_first_observer" \
 128         ".\[0-9\]+ =.*$first" \
 129         "$message; check first observer counter value"
 130     gdb_test "print observer_test_second_observer" \
 131         ".\[0-9\]+ =.*$second" \
 132         "$message; check second observer counter value"
 133     gdb_test "print observer_test_third_observer" \
 134         ".\[0-9\]+ =.*$third" \
 135         "$message; check third observer counter value"
 136 }
 137
 138 proc reset_counters { message } {
 139     gdb_test "set variable observer_test_first_observer = 0" "" \
 140         "$message; reset first observer counter"
 141     gdb_test "set variable observer_test_second_observer = 0" "" \
 142         "$message; reset second observer counter"
 143     gdb_test "set variable observer_test_third_observer = 0" "" \
 144         "$message; reset third observer counter"
 145 }
 146
 147 proc test_normal_stop_notifications { first second third message args } {
 148     # Do any initialization
 149     for {set i 0} {$i < [llength $args]} {incr i} {
 150         [lindex $args $i] $message
 151     }
 152     reset_counters $message
 153     # Call observer_notify_normal_stop.  Note that this procedure
 154     # takes one argument, but this argument is ignored by the observer
 155     # callbacks we have installed.  So we just pass an arbitrary value.
 156     gdb_test "call observer_notify_normal_stop (0)" "" \
 157         "$message; sending notification"
 158     check_counters $first $second $third $message
 159 }
 160
 161 proc test_observer_normal_stop { executable } {
 162
 163     set setup_result [setup_test $executable]
 164     if {$setup_result <0} then {
 165         return -1
 166     }
 167
 168     # First, try sending a notification without any observer attached.
 169     test_normal_stop_notifications 0 0 0 "no observer attached"
 170
 171     # Now, attach one observer, and send a notification.
 172     test_normal_stop_notifications 0 1 0 "second observer attached" \
 173         attach_second_observer
 174
 175     # Remove the observer, and send a notification.
 176     test_normal_stop_notifications 0 0 0 "second observer detached" \
 177         detach_second_observer
 178
 179     # With a new observer.
 180     test_normal_stop_notifications 1 0 0 "1st observer added" \
 181         attach_first_observer
 182
 183     # With 2 observers.
 184     test_normal_stop_notifications 1 1 0 "2nd observer added" \
 185         attach_second_observer
 186
 187     # With 3 observers.
 188     test_normal_stop_notifications 1 1 1 "3rd observer added" \
 189         attach_third_observer
 190
 191     # Remove middle observer.
 192     test_normal_stop_notifications 1 0 1 "2nd observer removed" \
 193         detach_second_observer
 194
 195     # Remove first observer.
 196     test_normal_stop_notifications 0 0 1 "1st observer removed" \
 197         detach_first_observer
 198
 199     # Remove last observer.
 200     test_normal_stop_notifications 0 0 0 "3rd observer removed" \
 201         detach_third_observer
 202
 203     # Go back to 3 observers, and remove them in a different order...
 204     test_normal_stop_notifications 1 1 1 "three observers added" \
 205         attach_first_observer \
 206         attach_second_observer \
 207         attach_third_observer
 208
 209     # Remove the third observer.
 210     test_normal_stop_notifications 1 1 0 "third observer removed" \
 211         detach_third_observer
 212
 213     # Remove the second observer.
 214     test_normal_stop_notifications 1 0 0 "second observer removed" \
 215         detach_second_observer
 216
 217     # Remove the first observer, no more observers.
 218     test_normal_stop_notifications 0 0 0 "first observer removed" \
 219         detach_first_observer
 220
 221     return 0
 222 }
 223
 224 # Find a pathname to a file that we would execute if the shell was asked
 225 # to run $arg using the current PATH.
 226
 227 proc find_gdb { arg } {
 228
 229     # If the arg directly specifies an existing executable file, then
 230     # simply use it.
 231
 232     if [file executable $arg] then {
 233         return $arg
 234     }
 235
 236     set result [which $arg]
 237     if [string match "/" [ string range $result 0 0 ]] then {
 238         return $result
 239     }
 240
 241     # If everything fails, just return the unqualified pathname as default
 242     # and hope for best.
 243
 244     return $arg
 245 }
 246
 247 # Run the test with self.
 248 # Copy the file executable file in case this OS doesn't like to edit its own
 249 # text space.
 250
 251 set GDB_FULLPATH [find_gdb $GDB]
 252
 253 # Remove any old copy lying around.
 254 remote_file host delete x$tool
 255
 256 gdb_start
 257 set file [remote_download host $GDB_FULLPATH x$tool]
 258 set result [test_observer_normal_stop $file];
 259 gdb_exit;
 260 catch "remote_file host delete $file";
 261
 262 if {$result <0} then {
 263     warning "Couldn't test self"
 264     return -1
 265 }