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

   1 # Copyright 2008-2024 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 require supports_reverse
  22
  23 standard_testfile
  24
  25 if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
  26     return -1
  27 }
  28
  29 runto_main
  30
  31 if [supports_process_record] {
  32     # Activate process record/replay
  33     gdb_test_no_output "record" "turn on process record"
  34 }
  35
  36 # Test software watchpoints
  37 gdb_test_no_output "set can-use-hw-watchpoints 0" "disable hw watchpoints"
  38
  39 gdb_test "break marker1" \
  40     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  41     "set breakpoint at marker1"
  42
  43 gdb_test "break marker2" \
  44     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  45     "set breakpoint at marker2"
  46
  47 gdb_continue_to_breakpoint "marker1" ".*$srcfile:.*"
  48
  49 gdb_test "watch ival3" \
  50     ".*\[Ww\]atchpoint $decimal: ival3.*" \
  51     "set watchpoint on ival3"
  52
  53 # Continue until first change, from -1 to 0
  54
  55 gdb_test "continue" \
  56     ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
  57     "watchpoint hit, first time"
  58
  59 # Continue until the next change, from 0 to 1.
  60 gdb_test "continue" \
  61     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
  62     "watchpoint hit, second time"
  63
  64 # Continue until the next change, from 1 to 2.
  65 gdb_test "continue" \
  66     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
  67     "watchpoint hit, third time"
  68
  69 # Continue until the next change, from 2 to 3.
  70 gdb_test "continue" \
  71     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
  72     "watchpoint hit, fourth time"
  73
  74 # Continue until the next change, from 3 to 4.
  75 # Note that this one is outside the loop.
  76
  77 gdb_test "continue" \
  78     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
  79     "watchpoint hit, fifth time"
  80
  81 # Continue until we hit the finishing marker function.
  82 # Make sure we hit no more watchpoints.
  83
  84 gdb_continue_to_breakpoint "marker2" ".*$srcfile:.*"
  85
  86 ###
  87 ###
  88 ###
  89
  90 gdb_test_no_output "set exec-direction reverse" \
  91     "set reverse, first time"
  92
  93 # Reverse until the previous change, from 4 to 3
  94 # Note that this one is outside the loop
  95
  96 gdb_test "continue" \
  97     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
  98     "watchpoint hit in reverse, first time"
  99
 100 # Reverse until the previous change, from 3 to 2.
 101 gdb_test "continue" \
 102     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 103     "watchpoint hit in reverse, second time"
 104
 105 # Reverse until the previous change, from 2 to 1.
 106 gdb_test "continue" \
 107     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 108     "watchpoint hit in reverse, third time"
 109
 110 # Reverse until the previous change, from 1 to 0.
 111 gdb_test "continue" \
 112     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 113     "watchpoint hit in reverse, fourth time"
 114
 115 # Reverse until first change, from 0 to -1
 116
 117 gdb_test "continue" \
 118     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 119     "watchpoint hit in reverse, fifth time"
 120
 121 gdb_test_no_output "disable \$bpnum" "disable non-hw watchpoint"
 122
 123 gdb_test_no_output "set can-use-hw-watchpoints 1" "enable hw watchpoints"
 124
 125 gdb_test_no_output "enable \$bpnum" "enable hw watchpoint"
 126
 127 ###
 128 ###
 129 ###
 130
 131 gdb_test_no_output "set exec-direction forward" "set forward"
 132
 133 # Continue until first change, from -1 to 0
 134
 135 gdb_test "continue" \
 136     ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 137     "watchpoint hit, forward replay, first time"
 138
 139 # Continue until the next change, from 0 to 1.
 140 gdb_test "continue" \
 141     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
 142     "watchpoint hit, forward replay, second time"
 143
 144 # Continue until the next change, from 1 to 2.
 145 gdb_test "continue" \
 146     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
 147     "watchpoint hit, forward replay, third time"
 148
 149 # Continue until the next change, from 2 to 3.
 150 gdb_test "continue" \
 151     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
 152     "watchpoint hit, forward replay, fourth time"
 153
 154 # Continue until the next change, from 3 to 4.
 155 # Note that this one is outside the loop.
 156
 157 gdb_test "continue" \
 158     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
 159     "watchpoint hit, forward replay, fifth time"
 160
 161 # Continue until we hit the finishing marker function.
 162 # Make sure we hit no more watchpoints.
 163
 164 gdb_test "continue" "marker2 .*" "replay forward to marker2"
 165
 166 ###
 167 ###
 168 ###
 169
 170 gdb_test_no_output "set exec-direction reverse" \
 171     "set reverse, second time"
 172
 173 # Reverse until the previous change, from 4 to 3
 174 # Note that this one is outside the loop
 175
 176 gdb_test "continue" \
 177     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
 178     "watchpoint hit in reverse, HW, first time"
 179
 180 # Reverse until the previous change, from 3 to 2.
 181 gdb_test "continue" \
 182     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 183     "watchpoint hit in reverse, HW, second time"
 184
 185 # Reverse until the previous change, from 2 to 1.
 186 gdb_test "continue" \
 187     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 188     "watchpoint hit in reverse, HW, third time"
 189
 190 # Reverse until the previous change, from 1 to 0.
 191 gdb_test "continue" \
 192     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 193     "watchpoint hit in reverse, HW, fourth time"
 194
 195 # Reverse until first change, from 0 to -1
 196
 197 gdb_test "continue" \
 198     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 199     "watchpoint hit in reverse, HW, fifth time"
 200