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

   1 # Copyright 2009-2020 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 precord dumpfile
  18 # debugging with watchpoints.
  19
  20 # This test suitable only for process record-replay
  21 if ![supports_process_record] {
  22     return
  23 }
  24
  25 standard_testfile watch-reverse.c
  26 set precsave [standard_output_file watch.precsave]
  27
  28 if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
  29     return -1
  30 }
  31
  32 runto main
  33
  34 if [supports_process_record] {
  35     # Activate process record/replay
  36     gdb_test_no_output "record" "turn on process record"
  37 }
  38
  39 set end_location  [gdb_get_line_number "end of main"  ]
  40 gdb_test "break $end_location" \
  41     "Breakpoint $decimal at .*$srcfile, line $end_location\." \
  42     "breakpoint at end of main"
  43
  44 gdb_test "continue" "Breakpoint .* end of main .*" "run to end of main"
  45
  46 gdb_test "record save $precsave" \
  47     "Saved core file $precsave with execution log\."  \
  48     "save process recfile"
  49
  50 gdb_test "kill" "" "kill process, prepare to debug log file" \
  51     "Kill the program being debugged\\? \\(y or n\\) " "y"
  52
  53 gdb_test "record restore $precsave" \
  54     "Restored records from core file .*" \
  55     "reload core file"
  56
  57 # Only software watchpoints can be used in reverse
  58 gdb_test_no_output "set can-use-hw-watchpoints 0" ""
  59
  60 gdb_test "break marker1" \
  61     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  62     "set breakpoint at marker1"
  63
  64 gdb_test "break marker2" \
  65     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  66     "set breakpoint at marker2"
  67
  68 gdb_continue_to_breakpoint "marker1" ".*$srcfile:.*"
  69
  70 gdb_test "watch ival3" \
  71     ".*\[Ww\]atchpoint $decimal: ival3.*" \
  72     "set watchpoint on ival3"
  73
  74 # Continue until first change, from -1 to 0
  75
  76 gdb_test "continue" \
  77     ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
  78     "watchpoint hit, first time"
  79
  80 # Continue until the next change, from 0 to 1.
  81 gdb_test "continue" \
  82     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
  83     "watchpoint hit, second time"
  84
  85 # Continue until the next change, from 1 to 2.
  86 gdb_test "continue" \
  87     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
  88     "watchpoint hit, third time"
  89
  90 # Continue until the next change, from 2 to 3.
  91 gdb_test "continue" \
  92     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
  93     "watchpoint hit, fourth time"
  94
  95 # Continue until the next change, from 3 to 4.
  96 # Note that this one is outside the loop.
  97
  98 gdb_test "continue" \
  99     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
 100     "watchpoint hit, fifth time"
 101
 102 # Continue until we hit the finishing marker function.
 103 # Make sure we hit no more watchpoints.
 104
 105 gdb_continue_to_breakpoint "marker2" ".*$srcfile:.*"
 106
 107 ###
 108 ###
 109 ###
 110
 111 gdb_test_no_output "set exec-direction reverse" \
 112     "set reverse, first time"
 113
 114 # Reverse until the previous change, from 4 to 3
 115 # Note that this one is outside the loop
 116
 117 gdb_test "continue" \
 118     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
 119     "watchpoint hit in reverse, first time"
 120
 121 # Reverse until the previous change, from 3 to 2.
 122 gdb_test "continue" \
 123     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 124     "watchpoint hit in reverse, second time"
 125
 126 # Reverse until the previous change, from 2 to 1.
 127 gdb_test "continue" \
 128     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 129     "watchpoint hit in reverse, third time"
 130
 131 # Reverse until the previous change, from 1 to 0.
 132 gdb_test "continue" \
 133     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 134     "watchpoint hit in reverse, fourth time"
 135
 136 # Reverse until first change, from 0 to -1
 137
 138 gdb_test "continue" \
 139     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 140     "watchpoint hit in reverse, fifth time"
 141
 142 gdb_test_no_output "set can-use-hw-watchpoints 1" "enable hw watchpoints"
 143
 144 ###
 145 ###
 146 ###
 147
 148 gdb_test_no_output "set exec-direction forward" "set forward"
 149
 150 # Continue until first change, from -1 to 0
 151
 152 gdb_test "continue" \
 153     ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 154     "watchpoint hit, forward replay, first time"
 155
 156 # Continue until the next change, from 0 to 1.
 157 gdb_test "continue" \
 158     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
 159     "watchpoint hit, forward replay, second time"
 160
 161 # Continue until the next change, from 1 to 2.
 162 gdb_test "continue" \
 163     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
 164     "watchpoint hit, forward replay, third time"
 165
 166 # Continue until the next change, from 2 to 3.
 167 gdb_test "continue" \
 168     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
 169     "watchpoint hit, forward replay, fourth time"
 170
 171 # Continue until the next change, from 3 to 4.
 172 # Note that this one is outside the loop.
 173
 174 gdb_test "continue" \
 175     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
 176     "watchpoint hit, forward replay, fifth time"
 177
 178 # Continue until we hit the finishing marker function.
 179 # Make sure we hit no more watchpoints.
 180
 181 gdb_test "continue" "marker2 .*" "replay forward to marker2"
 182
 183 ###
 184 ###
 185 ###
 186
 187 gdb_test_no_output "set exec-direction reverse" \
 188     "set reverse, second time"
 189
 190 # Reverse until the previous change, from 4 to 3
 191 # Note that this one is outside the loop
 192
 193 gdb_test "continue" \
 194     ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
 195     "watchpoint hit in reverse, HW, first time"
 196
 197 # Reverse until the previous change, from 3 to 2.
 198 gdb_test "continue" \
 199     ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
 200     "watchpoint hit in reverse, HW, second time"
 201
 202 # Reverse until the previous change, from 2 to 1.
 203 gdb_test "continue" \
 204     ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
 205     "watchpoint hit in reverse, HW, third time"
 206
 207 # Reverse until the previous change, from 1 to 0.
 208 gdb_test "continue" \
 209     ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
 210     "watchpoint hit in reverse, HW, fourth time"
 211
 212 # Reverse until first change, from 0 to -1
 213
 214 gdb_test "continue" \
 215     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
 216     "watchpoint hit in reverse, HW, fifth time"
 217