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     global gdb_file_cmd_debug_info
  51     set gdb_file_cmd_debug_info "unset"
  52
  53     set result [gdb_load $executable]
  54     set timeout $oldtimeout
  55     verbose "Timeout is now $timeout seconds" 2
  56
  57     if { $result != 0 } then {
  58         return -1
  59     }
  60
  61     if { $gdb_file_cmd_debug_info != "debug" } then {
  62         untested "No debug information, skipping testcase."
  63         return -1
  64     }
  65
  66     # Set a breakpoint at main
  67     gdb_test "break captured_main" \
  68             "Breakpoint.*at.* file.*, line.*" \
  69             "breakpoint in captured_main"
  70
  71     # run yourself
  72     # It may take a very long time for the inferior gdb to start (lynx),
  73     # so we bump it back up for the duration of this command.
  74     set timeout 600
  75
  76     set description "run until breakpoint at captured_main"
  77     gdb_test_multiple "run -nw" "$description" {
  78         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
  79             pass "$description"
  80         }
  81         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
  82             xfail "$description (line numbers scrambled?)"
  83         }
  84         -re "vfork: No more processes.*$gdb_prompt $" {
  85             fail "$description (out of virtual memory)"
  86             set timeout $oldtimeout
  87             verbose "Timeout is now $timeout seconds" 2
  88             return -1
  89         }
  90         -re ".*$gdb_prompt $" {
  91             fail "$description"
  92             set timeout $oldtimeout
  93             verbose "Timeout is now $timeout seconds" 2
  94             return -1
  95         }
  96     }
  97
  98     set timeout $oldtimeout
  99     verbose "Timeout is now $timeout seconds" 2
 100
 101     return 0
 102 }
 103
 104 proc attach_first_observer { message } {
 105     gdb_test "set \$first_obs = observer_attach_normal_stop (&observer_test_first_notification_function)" \
 106         "" "$message; attach first observer"
 107 }
 108
 109 proc attach_second_observer { message } {
 110     gdb_test "set \$second_obs = observer_attach_normal_stop (&observer_test_second_notification_function)" \
 111         "" "$message; attach second observer"
 112 }
 113
 114 proc attach_third_observer { message } {
 115     gdb_test "set \$third_obs = observer_attach_normal_stop (&observer_test_third_notification_function)" \
 116         "" "$message; attach third observer"
 117 }
 118
 119 proc detach_first_observer { message } {
 120     gdb_test "call observer_detach_normal_stop (\$first_obs)" \
 121         "" "$message; detach first observer"
 122 }
 123
 124 proc detach_second_observer { message } {
 125     gdb_test "call observer_detach_normal_stop (\$second_obs)" \
 126         "" "$message; detach second observer"
 127 }
 128
 129 proc detach_third_observer { message } {
 130     gdb_test "call observer_detach_normal_stop (\$third_obs)" \
 131         "" "$message; detach third observer"
 132 }
 133
 134 proc check_counters { first second third message } {
 135     gdb_test "print observer_test_first_observer" \
 136         ".\[0-9\]+ =.*$first" \
 137         "$message; check first observer counter value"
 138     gdb_test "print observer_test_second_observer" \
 139         ".\[0-9\]+ =.*$second" \
 140         "$message; check second observer counter value"
 141     gdb_test "print observer_test_third_observer" \
 142         ".\[0-9\]+ =.*$third" \
 143         "$message; check third observer counter value"
 144 }
 145
 146 proc reset_counters { message } {
 147     gdb_test "set variable observer_test_first_observer = 0" "" \
 148         "$message; reset first observer counter"
 149     gdb_test "set variable observer_test_second_observer = 0" "" \
 150         "$message; reset second observer counter"
 151     gdb_test "set variable observer_test_third_observer = 0" "" \
 152         "$message; reset third observer counter"
 153 }
 154
 155 proc test_normal_stop_notifications { first second third message args } {
 156     # Do any initialization
 157     for {set i 0} {$i < [llength $args]} {incr i} {
 158         [lindex $args $i] $message
 159     }
 160     reset_counters $message
 161     # Call observer_notify_normal_stop.  Note that this procedure
 162     # takes one argument, but this argument is ignored by the observer
 163     # callbacks we have installed.  So we just pass an arbitrary value.
 164     gdb_test "call observer_notify_normal_stop (0)" "" \
 165         "$message; sending notification"
 166     check_counters $first $second $third $message
 167 }
 168
 169 proc test_observer_normal_stop { executable } {
 170
 171     set setup_result [setup_test $executable]
 172     if {$setup_result <0} then {
 173         return -1
 174     }
 175
 176     # First, try sending a notification without any observer attached.
 177     test_normal_stop_notifications 0 0 0 "no observer attached"
 178
 179     # Now, attach one observer, and send a notification.
 180     test_normal_stop_notifications 0 1 0 "second observer attached" \
 181         attach_second_observer
 182
 183     # Remove the observer, and send a notification.
 184     test_normal_stop_notifications 0 0 0 "second observer detached" \
 185         detach_second_observer
 186
 187     # With a new observer.
 188     test_normal_stop_notifications 1 0 0 "1st observer added" \
 189         attach_first_observer
 190
 191     # With 2 observers.
 192     test_normal_stop_notifications 1 1 0 "2nd observer added" \
 193         attach_second_observer
 194
 195     # With 3 observers.
 196     test_normal_stop_notifications 1 1 1 "3rd observer added" \
 197         attach_third_observer
 198
 199     # Remove middle observer.
 200     test_normal_stop_notifications 1 0 1 "2nd observer removed" \
 201         detach_second_observer
 202
 203     # Remove first observer.
 204     test_normal_stop_notifications 0 0 1 "1st observer removed" \
 205         detach_first_observer
 206
 207     # Remove last observer.
 208     test_normal_stop_notifications 0 0 0 "3rd observer removed" \
 209         detach_third_observer
 210
 211     # Go back to 3 observers, and remove them in a different order...
 212     test_normal_stop_notifications 1 1 1 "three observers added" \
 213         attach_first_observer \
 214         attach_second_observer \
 215         attach_third_observer
 216
 217     # Remove the third observer.
 218     test_normal_stop_notifications 1 1 0 "third observer removed" \
 219         detach_third_observer
 220
 221     # Remove the second observer.
 222     test_normal_stop_notifications 1 0 0 "second observer removed" \
 223         detach_second_observer
 224
 225     # Remove the first observer, no more observers.
 226     test_normal_stop_notifications 0 0 0 "first observer removed" \
 227         detach_first_observer
 228
 229     return 0
 230 }
 231
 232 # Find a pathname to a file that we would execute if the shell was asked
 233 # to run $arg using the current PATH.
 234
 235 proc find_gdb { arg } {
 236
 237     # If the arg directly specifies an existing executable file, then
 238     # simply use it.
 239
 240     if [file executable $arg] then {
 241         return $arg
 242     }
 243
 244     set result [which $arg]
 245     if [string match "/" [ string range $result 0 0 ]] then {
 246         return $result
 247     }
 248
 249     # If everything fails, just return the unqualified pathname as default
 250     # and hope for best.
 251
 252     return $arg
 253 }
 254
 255 # Run the test with self.
 256 # Copy the file executable file in case this OS doesn't like to edit its own
 257 # text space.
 258
 259 set GDB_FULLPATH [find_gdb $GDB]
 260
 261 # Remove any old copy lying around.
 262 remote_file host delete x$tool
 263
 264 gdb_start
 265 set file [remote_download host $GDB_FULLPATH x$tool]
 266 set result [test_observer_normal_stop $file];
 267 gdb_exit;
 268 catch "remote_file host delete $file";
 269
 270 if {$result <0} then {
 271     warning "Couldn't test self"
 272     return -1
 273 }