gdb/testsuite/gdb.gdb/observer.exp

   1 # Copyright 2003, 2004, 2007 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 set prms_id 0
  24 set bug_id 0
  25
  26 # are we on a target board
  27 if { [is_remote target] || ![isnative] } then {
  28     return
  29 }
  30
  31 proc setup_test { executable } {
  32     global gdb_prompt
  33     global timeout
  34
  35     # load yourself into the debugger
  36     # This can take a relatively long time, particularly for testing where
  37     # the executable is being accessed over a network, or where gdb does not
  38     # support partial symbols for a particular target and has to load the
  39     # entire symbol table.  Set the timeout to 10 minutes, which should be
  40     # adequate for most environments (it *has* timed out with 5 min on a
  41     # SPARCstation SLC under moderate load, so this isn't unreasonable).
  42     # After gdb is started, set the timeout to 30 seconds for the duration
  43     # of this test, and then back to the original value.
  44
  45     set oldtimeout $timeout
  46     set timeout 600
  47     verbose "Timeout is now $timeout seconds" 2
  48
  49     global gdb_file_cmd_debug_info
  50     set gdb_file_cmd_debug_info "unset"
  51
  52     set result [gdb_load $executable]
  53     set timeout $oldtimeout
  54     verbose "Timeout is now $timeout seconds" 2
  55
  56     if { $result != 0 } then {
  57         return -1
  58     }
  59
  60     if { $gdb_file_cmd_debug_info != "debug" } then {
  61         untested "No debug information, skipping testcase."
  62         return -1
  63     }
  64
  65     # Set a breakpoint at main
  66     gdb_test "break captured_main" \
  67             "Breakpoint.*at.* file.*, line.*" \
  68             "breakpoint in captured_main"
  69
  70     # run yourself
  71     # It may take a very long time for the inferior gdb to start (lynx),
  72     # so we bump it back up for the duration of this command.
  73     set timeout 600
  74
  75     set description "run until breakpoint at captured_main"
  76     gdb_test_multiple "run -nw" "$description" {
  77         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
  78             pass "$description"
  79         }
  80         -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
  81             xfail "$description (line numbers scrambled?)"
  82         }
  83         -re "vfork: No more processes.*$gdb_prompt $" {
  84             fail "$description (out of virtual memory)"
  85             set timeout $oldtimeout
  86             verbose "Timeout is now $timeout seconds" 2
  87             return -1
  88         }
  89         -re ".*$gdb_prompt $" {
  90             fail "$description"
  91             set timeout $oldtimeout
  92             verbose "Timeout is now $timeout seconds" 2
  93             return -1
  94         }
  95     }
  96
  97     set timeout $oldtimeout
  98     verbose "Timeout is now $timeout seconds" 2
  99
 100     return 0
 101 }
 102
 103 proc attach_first_observer { message } {
 104     gdb_test "set \$first_obs = observer_attach_normal_stop (&observer_test_first_notification_function)" \
 105         "" "$message; attach first observer"
 106 }
 107
 108 proc attach_second_observer { message } {
 109     gdb_test "set \$second_obs = observer_attach_normal_stop (&observer_test_second_notification_function)" \
 110         "" "$message; attach second observer"
 111 }
 112
 113 proc attach_third_observer { message } {
 114     gdb_test "set \$third_obs = observer_attach_normal_stop (&observer_test_third_notification_function)" \
 115         "" "$message; attach third observer"
 116 }
 117
 118 proc detach_first_observer { message } {
 119     gdb_test "call observer_detach_normal_stop (\$first_obs)" \
 120         "" "$message; detach first observer"
 121 }
 122
 123 proc detach_second_observer { message } {
 124     gdb_test "call observer_detach_normal_stop (\$second_obs)" \
 125         "" "$message; detach second observer"
 126 }
 127
 128 proc detach_third_observer { message } {
 129     gdb_test "call observer_detach_normal_stop (\$third_obs)" \
 130         "" "$message; detach third observer"
 131 }
 132
 133 proc check_counters { first second third message } {
 134     gdb_test "print observer_test_first_observer" \
 135         ".\[0-9\]+ =.*$first" \
 136         "$message; check first observer counter value"
 137     gdb_test "print observer_test_second_observer" \
 138         ".\[0-9\]+ =.*$second" \
 139         "$message; check second observer counter value"
 140     gdb_test "print observer_test_third_observer" \
 141         ".\[0-9\]+ =.*$third" \
 142         "$message; check third observer counter value"
 143 }
 144
 145 proc reset_counters { message } {
 146     gdb_test "set variable observer_test_first_observer = 0" "" \
 147         "$message; reset first observer counter"
 148     gdb_test "set variable observer_test_second_observer = 0" "" \
 149         "$message; reset second observer counter"
 150     gdb_test "set variable observer_test_third_observer = 0" "" \
 151         "$message; reset third observer counter"
 152 }
 153
 154 proc test_normal_stop_notifications { first second third message args } {
 155     # Do any initialization
 156     for {set i 0} {$i < [llength $args]} {incr i} {
 157         [lindex $args $i] $message
 158     }
 159     reset_counters $message
 160     # Call observer_notify_normal_stop.  Note that this procedure
 161     # takes one argument, but this argument is ignored by the observer
 162     # callbacks we have installed.  So we just pass an arbitrary value.
 163     gdb_test "call observer_notify_normal_stop (0)" "" \
 164         "$message; sending notification"
 165     check_counters $first $second $third $message
 166 }
 167
 168 proc test_observer_normal_stop { executable } {
 169
 170     set setup_result [setup_test $executable]
 171     if {$setup_result <0} then {
 172         return -1
 173     }
 174
 175     # First, try sending a notification without any observer attached.
 176     test_normal_stop_notifications 0 0 0 "no observer attached"
 177
 178     # Now, attach one observer, and send a notification.
 179     test_normal_stop_notifications 0 1 0 "second observer attached" \
 180         attach_second_observer
 181
 182     # Remove the observer, and send a notification.
 183     test_normal_stop_notifications 0 0 0 "second observer detached" \
 184         detach_second_observer
 185
 186     # With a new observer.
 187     test_normal_stop_notifications 1 0 0 "1st observer added" \
 188         attach_first_observer
 189
 190     # With 2 observers.
 191     test_normal_stop_notifications 1 1 0 "2nd observer added" \
 192         attach_second_observer
 193
 194     # With 3 observers.
 195     test_normal_stop_notifications 1 1 1 "3rd observer added" \
 196         attach_third_observer
 197
 198     # Remove middle observer.
 199     test_normal_stop_notifications 1 0 1 "2nd observer removed" \
 200         detach_second_observer
 201
 202     # Remove first observer.
 203     test_normal_stop_notifications 0 0 1 "1st observer removed" \
 204         detach_first_observer
 205
 206     # Remove last observer.
 207     test_normal_stop_notifications 0 0 0 "3rd observer removed" \
 208         detach_third_observer
 209
 210     # Go back to 3 observers, and remove them in a different order...
 211     test_normal_stop_notifications 1 1 1 "three observers added" \
 212         attach_first_observer \
 213         attach_second_observer \
 214         attach_third_observer
 215
 216     # Remove the third observer.
 217     test_normal_stop_notifications 1 1 0 "third observer removed" \
 218         detach_third_observer
 219
 220     # Remove the second observer.
 221     test_normal_stop_notifications 1 0 0 "second observer removed" \
 222         detach_second_observer
 223
 224     # Remove the first observer, no more observers.
 225     test_normal_stop_notifications 0 0 0 "first observer removed" \
 226         detach_first_observer
 227
 228     return 0
 229 }
 230
 231 # Find a pathname to a file that we would execute if the shell was asked
 232 # to run $arg using the current PATH.
 233
 234 proc find_gdb { arg } {
 235
 236     # If the arg directly specifies an existing executable file, then
 237     # simply use it.
 238
 239     if [file executable $arg] then {
 240         return $arg
 241     }
 242
 243     set result [which $arg]
 244     if [string match "/" [ string range $result 0 0 ]] then {
 245         return $result
 246     }
 247
 248     # If everything fails, just return the unqualified pathname as default
 249     # and hope for best.
 250
 251     return $arg
 252 }
 253
 254 # Run the test with self.
 255 # Copy the file executable file in case this OS doesn't like to edit its own
 256 # text space.
 257
 258 set GDB_FULLPATH [find_gdb $GDB]
 259
 260 # Remove any old copy lying around.
 261 remote_file host delete x$tool
 262
 263 gdb_start
 264 set file [remote_download host $GDB_FULLPATH x$tool]
 265 set result [test_observer_normal_stop $file];
 266 gdb_exit;
 267 catch "remote_file host delete $file";
 268
 269 if {$result <0} then {
 270     warning "Couldn't test self"
 271     return -1
 272 }