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1d506c26 | 1 | # Copyright (C) 1996-2024 Free Software Foundation, Inc. |
0312286c DJ |
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 | |
e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
0312286c | 6 | # (at your option) any later version. |
e22f8b7c | 7 | # |
0312286c DJ |
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. | |
e22f8b7c | 12 | # |
0312286c | 13 | # You should have received a copy of the GNU General Public License |
e22f8b7c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
0312286c | 15 | |
0312286c DJ |
16 | # This file was written by Daniel Jacobowitz <drow@mvista.com> |
17 | # (parts based on pthreads.exp by Fred Fish (fnf@cygnus.com). | |
18 | # | |
19 | # This test covers the various forms of "set scheduler-locking". | |
20 | ||
87a3a92c SL |
21 | # This test requires sending ^C to interrupt the running target. |
22 | ||
450d26c8 | 23 | require {!target_info exists gdb,nointerrupts} |
0312286c | 24 | |
0efbbabc | 25 | standard_testfile |
0312286c | 26 | |
18ecae38 DJ |
27 | # The number of threads, including the main thread. |
28 | set NUM 2 | |
29 | ||
0efbbabc | 30 | if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } { |
0312286c DJ |
31 | return -1 |
32 | } | |
33 | ||
34 | # Now we can proceed with the real testing. | |
35 | ||
35420406 PA |
36 | # Get the current contents of the `args` array in the test program. |
37 | # Description is appended to the test message. | |
38 | ||
39 | proc get_args { description } { | |
9db70545 MS |
40 | global gdb_prompt |
41 | global NUM | |
e09490f1 | 42 | |
9db70545 MS |
43 | set pattern "(\[0-9\]+)" |
44 | for {set i 1} {[expr $i < $NUM]} {incr i} { | |
45 | append pattern ", (\[0-9\]+)" | |
46 | } | |
0312286c | 47 | |
35420406 PA |
48 | set test "listed args ($description)" |
49 | gdb_test_multiple "print args" $test { | |
9db70545 | 50 | -re "\\\$\[0-9\]+ = {$pattern}.*$gdb_prompt $" { |
35420406 | 51 | pass $test |
e09490f1 | 52 | |
9db70545 MS |
53 | set result "" |
54 | for {set i 1} {[expr $i <= $NUM]} {incr i} { | |
55 | lappend result $expect_out($i,string) | |
56 | } | |
57 | return $result | |
e09490f1 | 58 | } |
9db70545 | 59 | } |
0312286c DJ |
60 | } |
61 | ||
62 | proc stop_process { description } { | |
63 | global gdb_prompt | |
64 | ||
65 | # For this to work we must be sure to consume the "Continuing." | |
66 | # message first, or GDB's signal handler may not be in place. | |
67 | after 1000 {send_gdb "\003"} | |
68 | gdb_expect { | |
f303dbd6 | 69 | -re "Thread .* received signal SIGINT.*$gdb_prompt $" |
0312286c DJ |
70 | { |
71 | pass $description | |
72 | } | |
73 | timeout | |
74 | { | |
75 | fail "$description (timeout)" | |
76 | } | |
77 | } | |
78 | } | |
79 | ||
80 | proc get_current_thread { description } { | |
9db70545 | 81 | global gdb_prompt |
0312286c | 82 | |
35420406 PA |
83 | set test "find current thread ($description)" |
84 | ||
85 | gdb_test_multiple "bt" $test { | |
9db70545 | 86 | -re "thread_function \\(arg=0x(\[0-9\])\\).*$gdb_prompt $" { |
35420406 | 87 | pass $test |
9db70545 MS |
88 | return $expect_out(1,string) |
89 | } | |
90 | } | |
91 | return "" | |
0312286c DJ |
92 | } |
93 | ||
35420406 PA |
94 | # Make sure we're stopped in the loop, in one of the non-main threads. |
95 | ||
96 | proc goto_loop { msg } { | |
97 | gdb_breakpoint [concat [gdb_get_line_number "schedlock.exp: main loop"] " if arg != 0"] | |
98 | ||
99 | set test "return to loop" | |
100 | if {$msg != ""} { | |
101 | set test "$test ($msg)" | |
102 | } | |
103 | gdb_continue_to_breakpoint $test | |
104 | delete_breakpoints | |
105 | } | |
106 | ||
0312286c | 107 | proc my_continue { msg } { |
35420406 PA |
108 | set test "continue ($msg)" |
109 | gdb_test_multiple "continue" $test { | |
9db70545 | 110 | -re "Continuing" { |
35420406 | 111 | pass $test |
9db70545 MS |
112 | } |
113 | } | |
0312286c | 114 | |
9db70545 | 115 | stop_process "stop all threads ($msg)" |
0312286c | 116 | |
35420406 | 117 | goto_loop $msg |
0312286c DJ |
118 | } |
119 | ||
35420406 PA |
120 | # Use CMD to step the loop 10 times. CMD may be "step" or "next". |
121 | ||
122 | proc step_ten_loops { cmd } { | |
0312286c DJ |
123 | global gdb_prompt |
124 | ||
125 | for {set i 0} {[expr $i < 10]} {set i [expr $i + 1]} { | |
0312286c | 126 | set other_step 0 |
35420406 PA |
127 | set test "$cmd to increment ($i)" |
128 | gdb_test_multiple $cmd $test { | |
0312286c | 129 | -re ".*myp\\) \\+\\+;\[\r\n\]+$gdb_prompt $" { |
35420406 | 130 | pass $test |
0312286c DJ |
131 | } |
132 | -re "$gdb_prompt $" { | |
133 | if {$other_step == 0} { | |
134 | set other_step 1 | |
35420406 | 135 | send_gdb "$cmd\n" |
0312286c DJ |
136 | exp_continue |
137 | } else { | |
35420406 | 138 | fail $test |
0312286c DJ |
139 | # FIXME cascade? |
140 | } | |
141 | } | |
0312286c DJ |
142 | } |
143 | } | |
144 | } | |
145 | ||
a30f2b7b | 146 | clean_restart |
0312286c DJ |
147 | |
148 | # We'll need this when we send_gdb a ^C to GDB. Need to do it before we | |
149 | # run the program and gdb starts saving and restoring tty states. | |
09dd9a69 | 150 | gdb_test "shell stty intr '^C'" ".*" |
0312286c DJ |
151 | |
152 | gdb_load ${binfile} | |
153 | ||
12b5d08a MS |
154 | gdb_test_no_output "set print sevenbit-strings" |
155 | gdb_test_no_output "set width 0" | |
0312286c DJ |
156 | |
157 | runto_main | |
158 | ||
159 | # See if scheduler locking is available on this target. | |
0312286c | 160 | global gdb_prompt |
9db70545 MS |
161 | gdb_test_multiple "set scheduler-locking off" "scheduler locking set to none" { |
162 | -re "Target .* cannot support this command" { | |
163 | unsupported "target does not support scheduler locking" | |
164 | return | |
0312286c | 165 | } |
9db70545 MS |
166 | -re "$gdb_prompt $" { |
167 | pass "scheduler locking set to none" | |
0312286c | 168 | } |
9db70545 MS |
169 | timeout { |
170 | unsupported "target does not support scheduler locking (timeout)" | |
171 | return | |
0312286c DJ |
172 | } |
173 | } | |
174 | ||
175 | gdb_breakpoint [gdb_get_line_number "schedlock.exp: last thread start"] | |
176 | gdb_continue_to_breakpoint "all threads started" | |
177 | ||
35420406 | 178 | set start_args [get_args "before initial"] |
0312286c DJ |
179 | |
180 | # First make sure that all threads are alive. | |
181 | my_continue "initial" | |
182 | ||
35420406 | 183 | set cont_args [get_args "after initial"] |
0312286c | 184 | |
e09490f1 | 185 | set bad 0 |
18ecae38 | 186 | for {set i 0} {[expr $i < $NUM]} {set i [expr $i + 1]} { |
0312286c | 187 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { |
e09490f1 | 188 | incr bad |
0312286c DJ |
189 | } |
190 | } | |
e09490f1 | 191 | if { $bad == 0 } { |
18ecae38 DJ |
192 | pass "all threads alive" |
193 | } else { | |
e09490f1 | 194 | fail "all threads alive ($bad/$NUM did not run)" |
18ecae38 | 195 | } |
0312286c | 196 | |
35420406 PA |
197 | # Compare the previous thread and args with the current thread and |
198 | # args. Check that we didn't switch threads, and that the threads | |
199 | # incremented their args counter the amounts expected. CMD is the | |
200 | # command being tested. BEFORE_THREAD is the thread that was selected | |
201 | # before the command was run. BEFORE_ARGS is the value of the | |
202 | # thread's args before the command was run. LOCKED indicates whether | |
203 | # we expect threads other than the selected thread remained locked. | |
0312286c | 204 | |
35420406 PA |
205 | proc check_result { cmd before_thread before_args locked } { |
206 | global NUM | |
0312286c | 207 | |
35420406 PA |
208 | # Make sure we're still in the same thread. |
209 | set newthread [get_current_thread "after"] | |
0312286c | 210 | |
35420406 PA |
211 | set test "$cmd does not change thread" |
212 | if {$before_thread == $newthread} { | |
213 | pass "$test" | |
214 | } else { | |
215 | fail "$test (switched to thread $newthread)" | |
216 | } | |
0312286c | 217 | |
35420406 | 218 | set after_args [get_args "after"] |
0312286c | 219 | |
35420406 PA |
220 | set test "current thread advanced" |
221 | if { $locked } { | |
222 | set test "$test - locked" | |
223 | } else { | |
224 | set test "$test - unlocked" | |
0312286c | 225 | } |
35420406 PA |
226 | |
227 | set num_other_threads 0 | |
228 | for {set i 0} {$i < $NUM} {incr i} { | |
229 | if {[lindex $before_args $i] == [lindex $after_args $i]} { | |
230 | if {$i == $before_thread} { | |
231 | fail "$test (didn't run)" | |
232 | } | |
0312286c | 233 | } else { |
35420406 PA |
234 | if {$i == $before_thread} { |
235 | if {$cmd == "continue" | |
236 | || [lindex $before_args $i] == [expr [lindex $after_args $i] - 10]} { | |
237 | pass "$test" | |
238 | } else { | |
239 | fail "$test (wrong amount)" | |
240 | } | |
241 | } else { | |
242 | incr num_other_threads | |
243 | } | |
0312286c | 244 | } |
35420406 PA |
245 | } |
246 | ||
247 | if { $locked } { | |
248 | gdb_assert {$num_other_threads == 0} "other threads didn't run - locked" | |
0312286c | 249 | } else { |
35420406 | 250 | gdb_assert {$num_other_threads > 0} "other threads ran - unlocked" |
0312286c | 251 | } |
a25fbfec | 252 | } |
0312286c | 253 | |
35420406 PA |
254 | with_test_prefix "schedlock=on: cmd=continue" { |
255 | # Use whichever we stopped in. | |
256 | set curthread [get_current_thread "before"] | |
0312286c | 257 | |
35420406 PA |
258 | # Test continue with scheduler locking. |
259 | gdb_test "set scheduler-locking on" "" | |
0312286c | 260 | |
35420406 PA |
261 | my_continue "with lock" |
262 | ||
263 | check_result "continue" $curthread $cont_args 1 | |
0312286c DJ |
264 | } |
265 | ||
35420406 PA |
266 | # Test stepping/nexting with different modes of scheduler locking. |
267 | proc test_step { schedlock cmd call_function } { | |
268 | global NUM | |
0312286c | 269 | |
35420406 PA |
270 | gdb_test_no_output "set scheduler-locking off" |
271 | goto_loop "" | |
272 | ||
273 | set curthread [get_current_thread "before"] | |
274 | ||
275 | # No need to set to off again. This avoids a duplicate message. | |
276 | if {$schedlock != "off"} { | |
277 | gdb_test_no_output "set scheduler-locking $schedlock" | |
0312286c | 278 | } |
0312286c | 279 | |
35420406 PA |
280 | gdb_test "print call_function = $call_function" \ |
281 | " = $call_function" | |
0312286c | 282 | |
35420406 | 283 | set before_args [get_args "before"] |
0312286c | 284 | |
35420406 | 285 | step_ten_loops $cmd |
0312286c | 286 | |
856e7dd6 | 287 | if { $schedlock == "on" || $schedlock == "step" } { |
35420406 | 288 | set locked 1 |
0312286c | 289 | } else { |
35420406 | 290 | set locked 0 |
0312286c | 291 | } |
35420406 PA |
292 | |
293 | check_result $cmd $curthread $before_args $locked | |
18ecae38 | 294 | } |
0312286c | 295 | |
35420406 PA |
296 | # Test stepping/nexting with different modes of scheduler locking. |
297 | foreach schedlock {"off" "step" "on"} { | |
298 | with_test_prefix "schedlock=$schedlock" { | |
299 | with_test_prefix "cmd=step" { | |
300 | test_step $schedlock "step" 0 | |
301 | } | |
302 | with_test_prefix "cmd=next" { | |
856e7dd6 PA |
303 | # In GDB <= 7.9, with schedlock "step", "next" would |
304 | # unlock threads when stepping over a function call. This | |
305 | # exercises "next" with and without a function call. WRT | |
306 | # "schedlock step", "next" should behave just like "step". | |
35420406 PA |
307 | foreach call_function {0 1} { |
308 | with_test_prefix "call_function=$call_function" { | |
309 | test_step $schedlock "next" $call_function | |
310 | } | |
311 | } | |
312 | } | |
313 | } | |
314 | } |