1 # Copyright 2008-2024 Free Software Foundation, Inc.
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.
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.
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/>.
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
21 require supports_reverse
25 if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
31 if [supports_process_record] {
32 # Activate process record/replay
33 gdb_test_no_output "record" "turn on process record"
36 # Test software watchpoints
37 gdb_test_no_output "set can-use-hw-watchpoints 0" "disable hw watchpoints"
39 gdb_test "break marker1" \
40 "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
41 "set breakpoint at marker1"
43 gdb_test "break marker2" \
44 "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
45 "set breakpoint at marker2"
47 gdb_continue_to_breakpoint "marker1" ".*$srcfile:.*"
49 gdb_test "watch ival3" \
50 ".*\[Ww\]atchpoint $decimal: ival3.*" \
51 "set watchpoint on ival3"
53 # Continue until first change, from -1 to 0
56 ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
57 "watchpoint hit, first time"
59 # Continue until the next change, from 0 to 1.
61 ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
62 "watchpoint hit, second time"
64 # Continue until the next change, from 1 to 2.
66 ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
67 "watchpoint hit, third time"
69 # Continue until the next change, from 2 to 3.
71 ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
72 "watchpoint hit, fourth time"
74 # Continue until the next change, from 3 to 4.
75 # Note that this one is outside the loop.
78 ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
79 "watchpoint hit, fifth time"
81 # Continue until we hit the finishing marker function.
82 # Make sure we hit no more watchpoints.
84 gdb_continue_to_breakpoint "marker2" ".*$srcfile:.*"
90 gdb_test_no_output "set exec-direction reverse" \
91 "set reverse, first time"
93 # Reverse until the previous change, from 4 to 3
94 # Note that this one is outside the loop
97 ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
98 "watchpoint hit in reverse, first time"
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"
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"
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"
115 # Reverse until first change, from 0 to -1
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"
121 gdb_test_no_output "disable \$bpnum" "disable non-hw watchpoint"
123 gdb_test_no_output "set can-use-hw-watchpoints 1" "enable hw watchpoints"
125 gdb_test_no_output "enable \$bpnum" "enable hw watchpoint"
131 gdb_test_no_output "set exec-direction forward" "set forward"
133 # Continue until first change, from -1 to 0
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"
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"
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"
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"
154 # Continue until the next change, from 3 to 4.
155 # Note that this one is outside the loop.
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"
161 # Continue until we hit the finishing marker function.
162 # Make sure we hit no more watchpoints.
164 gdb_test "continue" "marker2 .*" "replay forward to marker2"
170 gdb_test_no_output "set exec-direction reverse" \
171 "set reverse, second time"
173 # Reverse until the previous change, from 4 to 3
174 # Note that this one is outside the loop
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"
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"
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"
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"
195 # Reverse until first change, from 0 to -1
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"