gdb/testsuite/gdb.gdb/observer.exp

   1 # Copyright 2003, 2004, 2007, 2008, 2009, 2010 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # This file was written by Joel Brobecker (brobecker@gnat.com), derived
  17 # from xfullpath.exp.
  18
  19 if $tracelevel then {
  20     strace $tracelevel
  21 }
  22
  23
  24 # are we on a target board
  25 if { [is_remote target] || ![isnative] } then {
  26     return
  27 }
  28
  29 proc setup_test { executable } {
  30     global gdb_prompt
  31     global timeout
  32
  33     # load yourself into the debugger
  34     # This can take a relatively long time, particularly for testing where
  35     # the executable is being accessed over a network, or where gdb does not
  36     # support partial symbols for a particular target and has to load the
  37     # entire symbol table.  Set the timeout to 10 minutes, which should be
  38     # adequate for most environments (it *has* timed out with 5 min on a
  39     # SPARCstation SLC under moderate load, so this isn't unreasonable).
  40     # After gdb is started, set the timeout to 30 seconds for the duration
  41     # of this test, and then back to the original value.
  42
  43     set oldtimeout $timeout
  44     set timeout 600
  45     verbose "Timeout is now $timeout seconds" 2
  46
  47     global gdb_file_cmd_debug_info
  48     set gdb_file_cmd_debug_info "unset"
  49
  50     set result [gdb_load $executable]
  51     set timeout $oldtimeout
  52     verbose "Timeout is now $timeout seconds" 2
  53
  54     if { $result != 0 } then {
  55         return -1
  56     }
  57
  58     if { $gdb_file_cmd_debug_info != "debug" } then {
  59         untested "No debug information, skipping testcase."
  60         return -1
  61     }
  62
  63     # Set a breakpoint at main
  64     gdb_test "break captured_main" \
  65             "Breakpoint.*at.* file.*, line.*" \
  66             "breakpoint in captured_main"
  67
  68     # run yourself
  69     # It may take a very long time for the inferior gdb to start (lynx),
  70     # so we bump it back up for the duration of this command.
  71     set timeout 600
  72
  73     set description "run until breakpoint at captured_main"
  74     gdb_test_multiple "run -nw" "$description" {
  75         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
  76             pass "$description"
  77         }
  78         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
  79             xfail "$description (line numbers scrambled?)"
  80         }
  81         -re "vfork: No more processes.*$gdb_prompt $" {
  82             fail "$description (out of virtual memory)"
  83             set timeout $oldtimeout
  84             verbose "Timeout is now $timeout seconds" 2
  85             return -1
  86         }
  87         -re ".*$gdb_prompt $" {
  88             fail "$description"
  89             set timeout $oldtimeout
  90             verbose "Timeout is now $timeout seconds" 2
  91             return -1
  92         }
  93     }
  94
  95     set timeout $oldtimeout
  96     verbose "Timeout is now $timeout seconds" 2
  97
  98     return 0
  99 }
 100
 101 proc attach_first_observer { message } {
 102     gdb_test_no_output "set \$first_obs = observer_attach_test_notification (&observer_test_first_notification_function)" \
 103         "$message; attach first observer"
 104 }
 105
 106 proc attach_second_observer { message } {
 107     gdb_test_no_output "set \$second_obs = observer_attach_test_notification (&observer_test_second_notification_function)" \
 108         "$message; attach second observer"
 109 }
 110
 111 proc attach_third_observer { message } {
 112     gdb_test_no_output "set \$third_obs = observer_attach_test_notification (&observer_test_third_notification_function)" \
 113         "$message; attach third observer"
 114 }
 115
 116 proc detach_first_observer { message } {
 117     gdb_test_no_output "call observer_detach_test_notification (\$first_obs)" \
 118         "$message; detach first observer"
 119 }
 120
 121 proc detach_second_observer { message } {
 122     gdb_test_no_output "call observer_detach_test_notification (\$second_obs)" \
 123         "$message; detach second observer"
 124 }
 125
 126 proc detach_third_observer { message } {
 127     gdb_test_no_output "call observer_detach_test_notification (\$third_obs)" \
 128         "$message; detach third observer"
 129 }
 130
 131 proc check_counters { first second third message } {
 132     gdb_test "print observer_test_first_observer" \
 133         ".\[0-9\]+ =.*$first" \
 134         "$message; check first observer counter value"
 135     gdb_test "print observer_test_second_observer" \
 136         ".\[0-9\]+ =.*$second" \
 137         "$message; check second observer counter value"
 138     gdb_test "print observer_test_third_observer" \
 139         ".\[0-9\]+ =.*$third" \
 140         "$message; check third observer counter value"
 141 }
 142
 143 proc reset_counters { message } {
 144     gdb_test_no_output "set variable observer_test_first_observer = 0" \
 145         "$message; reset first observer counter"
 146     gdb_test_no_output "set variable observer_test_second_observer = 0" \
 147         "$message; reset second observer counter"
 148     gdb_test_no_output "set variable observer_test_third_observer = 0" \
 149         "$message; reset third observer counter"
 150 }
 151
 152 proc test_notifications { first second third message args } {
 153     # Do any initialization
 154     for {set i 0} {$i < [llength $args]} {incr i} {
 155         [lindex $args $i] $message
 156     }
 157     reset_counters $message
 158     # Call observer_notify_test_notification.  Note that this procedure
 159     # takes one argument, but this argument is ignored by the observer
 160     # callbacks we have installed.  So we just pass an arbitrary value.
 161     gdb_test_no_output "call observer_notify_test_notification (0)" \
 162         "$message; sending notification"
 163     check_counters $first $second $third $message
 164 }
 165
 166 proc test_observer { executable } {
 167
 168     set setup_result [setup_test $executable]
 169     if {$setup_result <0} then {
 170         return -1
 171     }
 172
 173     # First, try sending a notification without any observer attached.
 174     test_notifications 0 0 0 "no observer attached"
 175
 176     # Now, attach one observer, and send a notification.
 177     test_notifications 0 1 0 "second observer attached" \
 178         attach_second_observer
 179
 180     # Remove the observer, and send a notification.
 181     test_notifications 0 0 0 "second observer detached" \
 182         detach_second_observer
 183
 184     # With a new observer.
 185     test_notifications 1 0 0 "1st observer added" \
 186         attach_first_observer
 187
 188     # With 2 observers.
 189     test_notifications 1 1 0 "2nd observer added" \
 190         attach_second_observer
 191
 192     # With 3 observers.
 193     test_notifications 1 1 1 "3rd observer added" \
 194         attach_third_observer
 195
 196     # Remove middle observer.
 197     test_notifications 1 0 1 "2nd observer removed" \
 198         detach_second_observer
 199
 200     # Remove first observer.
 201     test_notifications 0 0 1 "1st observer removed" \
 202         detach_first_observer
 203
 204     # Remove last observer.
 205     test_notifications 0 0 0 "3rd observer removed" \
 206         detach_third_observer
 207
 208     # Go back to 3 observers, and remove them in a different order...
 209     test_notifications 1 1 1 "three observers added" \
 210         attach_first_observer \
 211         attach_second_observer \
 212         attach_third_observer
 213
 214     # Remove the third observer.
 215     test_notifications 1 1 0 "third observer removed" \
 216         detach_third_observer
 217
 218     # Remove the second observer.
 219     test_notifications 1 0 0 "second observer removed" \
 220         detach_second_observer
 221
 222     # Remove the first observer, no more observers.
 223     test_notifications 0 0 0 "first observer removed" \
 224         detach_first_observer
 225
 226     return 0
 227 }
 228
 229 # Find a pathname to a file that we would execute if the shell was asked
 230 # to run $arg using the current PATH.
 231
 232 proc find_gdb { arg } {
 233
 234     # If the arg directly specifies an existing executable file, then
 235     # simply use it.
 236
 237     if [file executable $arg] then {
 238         return $arg
 239     }
 240
 241     set result [which $arg]
 242     if [string match "/" [ string range $result 0 0 ]] then {
 243         return $result
 244     }
 245
 246     # If everything fails, just return the unqualified pathname as default
 247     # and hope for best.
 248
 249     return $arg
 250 }
 251
 252 # Run the test with self.
 253 # Copy the file executable file in case this OS doesn't like to edit its own
 254 # text space.
 255
 256 set GDB_FULLPATH [find_gdb $GDB]
 257
 258 # Remove any old copy lying around.
 259 remote_file host delete x$tool
 260
 261 gdb_start
 262 set file [remote_download host $GDB_FULLPATH x$tool]
 263 set result [test_observer $file];
 264 gdb_exit;
 265 catch "remote_file host delete $file";
 266
 267 if {$result <0} then {
 268     warning "Couldn't test self"
 269     return -1
 270 }