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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
# Copyright 2012-2021 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/>.
load_lib trace-support.exp
if {[skip_shlib_tests]} {
return 0
}
if ![gdb_trace_common_supports_arch] {
unsupported "no trace-common.h support for arch"
return -1
}
standard_testfile pending.c
set libfile1 "pendshr1"
set libfile2 "pendshr2"
set executable $testfile
set libsrc1 $srcdir/$subdir/$libfile1.c
set libsrc2 $srcdir/$subdir/$libfile2.c
set lib_sl1 [standard_output_file pendshr1.sl]
set lib_sl2 [standard_output_file pendshr2.sl]
set lib_opts [gdb_target_symbol_prefix_flags]
if { [gdb_compile_shlib $libsrc1 $lib_sl1 $lib_opts] != ""
|| [gdb_compile_shlib $libsrc2 $lib_sl2 $lib_opts] != ""} {
untested "failed to compile shared library"
return -1
}
set exec_opts [list debug shlib=$lib_sl1 shlib_load]
if { [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != "" } {
untested "failed to compile"
return -1
}
load_lib mi-support.exp
set MIFLAGS "-i=mi"
# Test when GDB connects to a disconnected stub, existing tracepoints in
# remote stub can be uploaded to GDB, and GDB emits MI notification if
# new tracepoints are created.
proc test_reconnect { } {
with_test_prefix "reconnect" {
global gdbserver_reconnect_p
global gdb_prompt
global executable
global lib_sl1 lib_sl2
set gdbserver_reconnect_p 1
if { [info proc gdb_reconnect] == "" } {
return 0
}
clean_restart $executable
gdb_load_shlib $lib_sl1
gdb_load_shlib $lib_sl2
if ![runto_main] then {
fail "can't run to main"
return 0
}
# Create tracepoints on marker and main, and leave them in the
# remote stub.
gdb_test "trace marker" "Tracepoint.*at.* file .*" \
"tracepoint on marker"
gdb_test "trace main" "Tracepoint.*at.* file .*" \
"tracepoint on main"
gdb_test_no_output "tstart" "start trace experiment"
set test "disconnect"
gdb_test_multiple "disconnect" $test {
-re "Trace is running but will stop on detach; detach anyway\\? \\(y or n\\) $" {
pass $test
set test "disconnected"
gdb_test_multiple "y" $test {
-re "$gdb_prompt $" {
pass "$test"
}
}
}
}
gdb_exit
if [mi_gdb_start] {
return
}
global srcdir
global subdir
global binfile
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${binfile}
global gdbserver_protocol
global gdbserver_gdbport
# Create tracepoints on marker and pendfunc2.
mi_gdb_test "-break-insert -a -f pendfunc2" \
{.*\^done,bkpt=.*addr=\"<PENDING>\".*} \
"insert tracepoint on pendfunc2"
mi_gdb_test "-break-insert -a marker" {.*\^done,bkpt=.*\".*} \
"insert tracepoint on marker"
# Connect to the remote stub again, and make sure GDB merges the
# tracepoints of both sides correctly.
send_gdb "47-target-select $gdbserver_protocol $gdbserver_gdbport\n"
global mi_gdb_prompt
set test "tracepoint created"
gdb_expect {
-re "=breakpoint-created,bkpt=\{number=\"1\",type=\"tracepoint\"" {
# Tracepoint 1 in GDB, which has already existed before
# connecting, should have been merged with a tracepoint on
# the target, so we shouldn't see a =breakpoint-created
# notification for it.
fail "$test: 1"
exp_continue
}
-re "=breakpoint-created,bkpt=\{number=\"2\",type=\"tracepoint\"" {
# Similar to above.
fail "$test: 2"
exp_continue
}
-re "=breakpoint-created,bkpt=\{number=\"3\",type=\"tracepoint\",disp=\"keep\",enabled=\"y\",\[^\n\]+,func=\"main\"\[^\n\]+,installed=\"y\"" {
# A tracepoint on main was defined in the stub, not in GDB,
# so we should see a =breakpoint-created notification.
pass $test
}
}
# Tracepoint on marker is defined. After the sync, we know that
# the tracepoint is in remote stub. Mark it 'installed'.
set test "tracepoint on marker is installed"
gdb_expect {
-re "=breakpoint-modified,bkpt=\{number=\"2\".*,func=\"marker\".*installed=\"y\".*${mi_gdb_prompt}$" {
pass "$test"
}
}
# Check that tracepoint 1 is still pending.
mi_gdb_test "-break-info 1" \
{.*\^done,BreakpointTable=.*addr=\"<PENDING>\".*} \
"break-info 1"
set gdbserver_reconnect_p 0
}
}
# Test 'breakpoint-modified' notification is emited when pending tracepoints are
# resolved.
proc test_pending_resolved { } {
with_test_prefix "pending resolved" {
global decimal hex
global executable
global srcdir
global subdir
global binfile
global lib_sl1 lib_sl2
global mi_gdb_prompt
gdb_exit
if [mi_gdb_start] {
continue
}
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${binfile}
mi_load_shlibs $lib_sl1 $lib_sl2
# Create a pending tracepoint on pendfunc2
mi_gdb_test "-break-insert -a -f pendfunc2" \
{.*\^done,bkpt=.*addr=\"<PENDING>\".*} \
"insert breakpoint on pendfunc2"
# Insert breakpoint on marker
mi_gdb_test "-break-insert marker" {.*\^done,bkpt=.*} \
"insert breakpoint on marker"
mi_run_cmd
mi_expect_stop "breakpoint-hit" "marker" ""\
".*" ".*" {"" "disp=\"keep\""} \
"continue to marker breakpoint"
mi_gdb_test "-trace-start" {\^done} "trace start"
mi_send_resuming_command "exec-continue" "continuing execution to marker 1"
# It is expected to get two "=breakpoint-modified" notifications.
# Pending tracepoint is resolved.
set test "tracepoint on pendfunc2 resolved"
gdb_expect {
-re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"n\"" {
pass "$test"
}
}
# Resolved tracepoint is installed.
set test "tracepoint on pendfunc2 installed"
gdb_expect {
-re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"y\"" {
pass "$test"
}
}
mi_expect_stop "breakpoint-hit" "marker" ".*" ".*" ".*" \
{"" "disp=\"keep\""} "continue to marker"
mi_gdb_test "-trace-stop" {\^done,.*} "trace stop"
mi_gdb_test "-trace-find frame-number 0" \
"-trace-find frame-number 0\r\n\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \
"-trace-find frame-number 0"
mi_gdb_test "-trace-find none" {\^done,found="0"} "back to live inferior"
mi_send_resuming_command "exec-continue" "continuing to exit"
set test "tracepoint on pendfunc2 becomes pending again"
gdb_expect {
-re ".*=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*addr=\"<PENDING>\",.*times=\"0\"" {
pass "$test"
}
-re ".*${mi_gdb_prompt}$" {
fail $test
}
timeout {
fail "$test (timeout)"
}
}
mi_expect_stop "exited-normally" "" "" "" "" "" ""
}
}
# Test target supports tracepoints or not.
clean_restart $executable
gdb_load_shlib $lib_sl1
gdb_load_shlib $lib_sl2
if ![runto_main] {
fail "can't run to main to check for trace support"
return -1
}
if ![gdb_target_supports_trace] {
unsupported "current target does not support trace"
return -1
}
gdb_exit
test_reconnect
test_pending_resolved
return 0
|
