gdb/testsuite/gdb.reverse/watch-reverse.exp

   1 # Copyright 2008-2015 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 # Based on a file written by Fred Fish. (fnf@cygnus.com)
  17 # This file is part of the GDB testsuite.  It tests reverse debugging
  18 # with watchpoints.
  19
  20
  21 if ![supports_reverse] {
  22     return
  23 }
  24
  25 standard_testfile
  26
  27 if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
  28     return -1
  29 }
  30
  31 runto main
  32
  33 if [supports_process_record] {
  34     # Activate process record/replay
  35     gdb_test_no_output "record" "Turn on process record"
  36 }
  37
  38 # Test software watchpoints
  39 gdb_test_no_output "set can-use-hw-watchpoints 0" "disable hw watchpoints"
  40
  41 gdb_test "break marker1" \
  42     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  43     "set breakpoint at marker1"
  44
  45 gdb_test "break marker2" \
  46     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  47     "set breakpoint at marker2"
  48
  49 gdb_continue_to_breakpoint "marker1" ".*$srcfile:.*"
  50
  51 gdb_test "watch ival3" \
  52     ".*\[Ww\]atchpoint $decimal: ival3.*" \
  53     "set watchpoint on ival3"
  54
  55 # Continue until first change, from -1 to 0
  56
  57 gdb_test "continue" \
  58     ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
  59     "watchpoint hit, first time"
  60
  61 # Continue until the next change, from 0 to 1.
  62 gdb_test "continue" \
  63     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
  64     "watchpoint hit, second time"
  65
  66 # Continue until the next change, from 1 to 2.
  67 gdb_test "continue" \
  68     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
  69     "watchpoint hit, third time"
  70
  71 # Continue until the next change, from 2 to 3.
  72 gdb_test "continue" \
  73     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
  74     "watchpoint hit, fourth time"
  75
  76 # Continue until the next change, from 3 to 4.
  77 # Note that this one is outside the loop.
  78
  79 gdb_test "continue" \
  80     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
  81     "watchpoint hit, fifth time"
  82
  83 # Continue until we hit the finishing marker function.
  84 # Make sure we hit no more watchpoints.
  85
  86 gdb_continue_to_breakpoint "marker2" ".*$srcfile:.*"
  87
  88 ###
  89 ###
  90 ###
  91
  92 gdb_test_no_output "set exec-direction reverse" "set reverse"
  93
  94 # Reverse until the previous change, from 4 to 3
  95 # Note that this one is outside the loop
  96
  97 gdb_test "continue" \
  98     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
  99     "watchpoint hit in reverse, first time"
 100
 101 # Reverse until the previous change, from 3 to 2.
 102 gdb_test "continue" \
 103     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 104     "watchpoint hit in reverse, second time"
 105
 106 # Reverse until the previous change, from 2 to 1.
 107 gdb_test "continue" \
 108     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 109     "watchpoint hit in reverse, third time"
 110
 111 # Reverse until the previous change, from 1 to 0.
 112 gdb_test "continue" \
 113     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 114     "watchpoint hit in reverse, fourth time"
 115
 116 # Reverse until first change, from 0 to -1
 117
 118 gdb_test "continue" \
 119     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 120     "watchpoint hit in reverse, fifth time"
 121
 122 gdb_test_no_output "set can-use-hw-watchpoints 1" "enable hw watchpoints"
 123
 124 ###
 125 ###
 126 ###
 127
 128 gdb_test_no_output "set exec-direction forward" "set forward"
 129
 130 # Continue until first change, from -1 to 0
 131
 132 gdb_test "continue" \
 133     ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 134     "watchpoint hit, forward replay, first time"
 135
 136 # Continue until the next change, from 0 to 1.
 137 gdb_test "continue" \
 138     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
 139     "watchpoint hit, forward replay, second time"
 140
 141 # Continue until the next change, from 1 to 2.
 142 gdb_test "continue" \
 143     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
 144     "watchpoint hit, forward replay, third time"
 145
 146 # Continue until the next change, from 2 to 3.
 147 gdb_test "continue" \
 148     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
 149     "watchpoint hit, forward replay, fourth time"
 150
 151 # Continue until the next change, from 3 to 4.
 152 # Note that this one is outside the loop.
 153
 154 gdb_test "continue" \
 155     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
 156     "watchpoint hit, forward replay, fifth time"
 157
 158 # Continue until we hit the finishing marker function.
 159 # Make sure we hit no more watchpoints.
 160
 161 gdb_test "continue" "marker2 .*" "replay forward to marker2"
 162
 163 ###
 164 ###
 165 ###
 166
 167 gdb_test_no_output "set exec-direction reverse" "set reverse"
 168
 169 # Reverse until the previous change, from 4 to 3
 170 # Note that this one is outside the loop
 171
 172 gdb_test "continue" \
 173     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
 174     "watchpoint hit in reverse, HW, first time"
 175
 176 # Reverse until the previous change, from 3 to 2.
 177 gdb_test "continue" \
 178     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 179     "watchpoint hit in reverse, HW, second time"
 180
 181 # Reverse until the previous change, from 2 to 1.
 182 gdb_test "continue" \
 183     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 184     "watchpoint hit in reverse, HW, third time"
 185
 186 # Reverse until the previous change, from 1 to 0.
 187 gdb_test "continue" \
 188     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 189     "watchpoint hit in reverse, HW, fourth time"
 190
 191 # Reverse until first change, from 0 to -1
 192
 193 gdb_test "continue" \
 194     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 195     "watchpoint hit in reverse, HW, fifth time"
 196