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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
# This testcase is part of GDB, the GNU debugger.
#
# Copyright 2013-2015 Free Software Foundation, Inc.
#
# Contributed by Intel Corp. <markus.t.metzger@intel.com>
#
# 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/>.
# check for btrace support
if { [skip_btrace_tests] } { return -1 }
# start inferior
standard_testfile
if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" "$binfile" executable {debug}] != "" } {
return -1
}
clean_restart $testfile
if ![runto_main] {
return -1
}
# set up breakpoints
set bp_1 [gdb_get_line_number "bp.1" $srcfile]
set bp_2 [gdb_get_line_number "bp.2" $srcfile]
set bp_3 [gdb_get_line_number "bp.3" $srcfile]
proc gdb_cont_to_line { line } {
gdb_breakpoint $line
gdb_continue_to_breakpoint "cont to $line" ".*$line\r\n.*"
delete_breakpoints
}
proc check_replay_insn { thread insn } {
gdb_test "thread apply $thread info record" \
"Replay in progress\. At instruction $insn\."
}
proc check_not_replaying { thread } {
global gdb_prompt
set test "thread $thread not replaying"
gdb_test_multiple "thread apply $thread info record" $test {
-re "Replay in progress" {
fail $test
}
-re "$gdb_prompt $" {
pass $test
}
}
}
# trace the code between the two breakpoints
delete_breakpoints
gdb_cont_to_line $srcfile:$bp_1
# make sure GDB knows about the new thread
gdb_test "info threads" ".*"
gdb_test_no_output "record btrace"
gdb_cont_to_line $srcfile:$bp_2
proc test_navigate {} {
with_test_prefix "navigate" {
gdb_test "thread 1" ".*"
with_test_prefix "thread 1" {
gdb_test "record goto begin" ".*"
check_replay_insn 1 1
check_not_replaying 2
}
gdb_test "thread 2" ".*"
with_test_prefix "thread 2" {
gdb_test "record goto begin" ".*"
check_replay_insn 1 1
check_replay_insn 2 1
}
}
}
proc test_step {} {
with_test_prefix "step" {
gdb_test "thread 1" ".*"
with_test_prefix "thread 1" {
gdb_test "stepi" ".*"
check_replay_insn 1 2
check_replay_insn 2 1
}
gdb_test "thread 2" ".*"
with_test_prefix "thread 2" {
gdb_test "stepi" ".*"
check_replay_insn 1 2
check_replay_insn 2 2
}
}
}
proc test_cont {} {
with_test_prefix "cont" {
gdb_test "thread 1" ".*"
with_test_prefix "thread 1" {
gdb_test "continue" "No more reverse-execution history.*"
check_not_replaying 1
check_replay_insn 2 2
}
gdb_test "thread 2" ".*"
with_test_prefix "thread 2" {
gdb_test "continue" "No more reverse-execution history.*"
check_not_replaying 1
check_not_replaying 2
}
}
}
proc test_cont_all {} {
with_test_prefix "cont-all" {
gdb_test "continue" "No more reverse-execution history.*"
# this works because we're lock-stepping threads that executed exactly
# the same code starting from the same instruction.
check_not_replaying 1
check_not_replaying 2
}
}
proc test_rstep {} {
with_test_prefix "reverse-step" {
gdb_test "thread apply all record goto 3"
gdb_test "thread 1" ".*"
with_test_prefix "thread 1" {
gdb_test "reverse-stepi" ".*"
check_replay_insn 1 2
check_replay_insn 2 3
}
gdb_test "thread 2" ".*"
with_test_prefix "thread 2" {
gdb_test "reverse-stepi" ".*"
check_replay_insn 1 2
check_replay_insn 2 2
}
}
}
proc test_goto_end {} {
with_test_prefix "goto-end" {
gdb_test "thread apply all record goto end"
check_not_replaying 1
check_not_replaying 2
}
}
foreach schedlock { "replay" "on" "step" } {
with_test_prefix "schedlock-$schedlock" {
gdb_test_no_output "set scheduler-locking $schedlock"
test_navigate
test_step
if { $schedlock == "step" } {
test_cont_all
} else {
test_cont
}
test_rstep
test_goto_end
}
}
# schedlock-off is difficult to test since we can't really say where the other
# thread will be when the resumed thread stops.
# navigate back into the history for thread 1 and continue thread 2
with_test_prefix "cont-to-end" {
# this test only works for scheduler-locking replay
gdb_test_no_output "set scheduler-locking replay"
gdb_test "thread 1" ".*"
with_test_prefix "thread 1" {
gdb_test "record goto begin" ".*"
check_replay_insn 1 1
}
gdb_test "thread 2" ".*"
with_test_prefix "thread 2" {
gdb_test "record goto end" ".*"
check_not_replaying 2
# if we reach the breakpoint, thread 2 terminated...
gdb_cont_to_line $srcfile:$bp_3
# and thread 1 stopped replaying
check_not_replaying 1
}
}
|
