1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
# Copyright 2008-2017 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Based on a file written by Fred Fish. (fnf@cygnus.com)
# This file is part of the GDB testsuite. It tests reverse debugging
# with watchpoints.
if ![supports_reverse] {
return
}
standard_testfile
if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
return -1
}
runto main
if [supports_process_record] {
# Activate process record/replay
gdb_test_no_output "record" "turn on process record"
}
# Test software watchpoints
gdb_test_no_output "set can-use-hw-watchpoints 0" "disable hw watchpoints"
gdb_test "break marker1" \
"Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
"set breakpoint at marker1"
gdb_test "break marker2" \
"Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
"set breakpoint at marker2"
gdb_continue_to_breakpoint "marker1" ".*$srcfile:.*"
gdb_test "watch ival3" \
".*\[Ww\]atchpoint $decimal: ival3.*" \
"set watchpoint on ival3"
# Continue until first change, from -1 to 0
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, first time"
# Continue until the next change, from 0 to 1.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, second time"
# Continue until the next change, from 1 to 2.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, third time"
# Continue until the next change, from 2 to 3.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, fourth time"
# Continue until the next change, from 3 to 4.
# Note that this one is outside the loop.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, fifth time"
# Continue until we hit the finishing marker function.
# Make sure we hit no more watchpoints.
gdb_continue_to_breakpoint "marker2" ".*$srcfile:.*"
###
###
###
gdb_test_no_output "set exec-direction reverse" "set reverse"
# Reverse until the previous change, from 4 to 3
# Note that this one is outside the loop
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, first time"
# Reverse until the previous change, from 3 to 2.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, second time"
# Reverse until the previous change, from 2 to 1.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, third time"
# Reverse until the previous change, from 1 to 0.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, fourth time"
# Reverse until first change, from 0 to -1
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, fifth time"
gdb_test_no_output "set can-use-hw-watchpoints 1" "enable hw watchpoints"
###
###
###
gdb_test_no_output "set exec-direction forward" "set forward"
# Continue until first change, from -1 to 0
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, forward replay, first time"
# Continue until the next change, from 0 to 1.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, forward replay, second time"
# Continue until the next change, from 1 to 2.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, forward replay, third time"
# Continue until the next change, from 2 to 3.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, forward replay, fourth time"
# Continue until the next change, from 3 to 4.
# Note that this one is outside the loop.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
"watchpoint hit, forward replay, fifth time"
# Continue until we hit the finishing marker function.
# Make sure we hit no more watchpoints.
gdb_test "continue" "marker2 .*" "replay forward to marker2"
###
###
###
gdb_test_no_output "set exec-direction reverse" "set reverse"
# Reverse until the previous change, from 4 to 3
# Note that this one is outside the loop
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, HW, first time"
# Reverse until the previous change, from 3 to 2.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, HW, second time"
# Reverse until the previous change, from 2 to 1.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, HW, third time"
# Reverse until the previous change, from 1 to 0.
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, HW, fourth time"
# Reverse until first change, from 0 to -1
gdb_test "continue" \
".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
"watchpoint hit in reverse, HW, fifth time"
|
