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

   1 # Copyright 2008-2022 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 "failed to prepare" $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" \
  93     "set reverse, first time"
  94
  95 # Reverse until the previous change, from 4 to 3
  96 # Note that this one is outside the loop
  97
  98 gdb_test "continue" \
  99     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
 100     "watchpoint hit in reverse, first time"
 101
 102 # Reverse until the previous change, from 3 to 2.
 103 gdb_test "continue" \
 104     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 105     "watchpoint hit in reverse, second time"
 106
 107 # Reverse until the previous change, from 2 to 1.
 108 gdb_test "continue" \
 109     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 110     "watchpoint hit in reverse, third time"
 111
 112 # Reverse until the previous change, from 1 to 0.
 113 gdb_test "continue" \
 114     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 115     "watchpoint hit in reverse, fourth time"
 116
 117 # Reverse until first change, from 0 to -1
 118
 119 gdb_test "continue" \
 120     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 121     "watchpoint hit in reverse, fifth time"
 122
 123 gdb_test_no_output "set can-use-hw-watchpoints 1" "enable hw watchpoints"
 124
 125 ###
 126 ###
 127 ###
 128
 129 gdb_test_no_output "set exec-direction forward" "set forward"
 130
 131 # Continue until first change, from -1 to 0
 132
 133 gdb_test "continue" \
 134     ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 135     "watchpoint hit, forward replay, first time"
 136
 137 # Continue until the next change, from 0 to 1.
 138 gdb_test "continue" \
 139     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
 140     "watchpoint hit, forward replay, second time"
 141
 142 # Continue until the next change, from 1 to 2.
 143 gdb_test "continue" \
 144     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
 145     "watchpoint hit, forward replay, third time"
 146
 147 # Continue until the next change, from 2 to 3.
 148 gdb_test "continue" \
 149     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
 150     "watchpoint hit, forward replay, fourth time"
 151
 152 # Continue until the next change, from 3 to 4.
 153 # Note that this one is outside the loop.
 154
 155 gdb_test "continue" \
 156     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
 157     "watchpoint hit, forward replay, fifth time"
 158
 159 # Continue until we hit the finishing marker function.
 160 # Make sure we hit no more watchpoints.
 161
 162 gdb_test "continue" "marker2 .*" "replay forward to marker2"
 163
 164 ###
 165 ###
 166 ###
 167
 168 gdb_test_no_output "set exec-direction reverse" \
 169     "set reverse, second time"
 170
 171 # Reverse until the previous change, from 4 to 3
 172 # Note that this one is outside the loop
 173
 174 gdb_test "continue" \
 175     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
 176     "watchpoint hit in reverse, HW, first time"
 177
 178 # Reverse until the previous change, from 3 to 2.
 179 gdb_test "continue" \
 180     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 181     "watchpoint hit in reverse, HW, second time"
 182
 183 # Reverse until the previous change, from 2 to 1.
 184 gdb_test "continue" \
 185     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 186     "watchpoint hit in reverse, HW, third time"
 187
 188 # Reverse until the previous change, from 1 to 0.
 189 gdb_test "continue" \
 190     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 191     "watchpoint hit in reverse, HW, fourth time"
 192
 193 # Reverse until first change, from 0 to -1
 194
 195 gdb_test "continue" \
 196     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 197     "watchpoint hit in reverse, HW, fifth time"
 198