Commit | Line | Data |
---|---|---|
0fb0cc75 | 1 | # Copyright (C) 1996, 1997, 2002, 2003, 2007, 2008, 2009 |
9b254dd1 | 2 | # Free Software Foundation, Inc. |
0312286c DJ |
3 | |
4 | # This program is free software; you can redistribute it and/or modify | |
5 | # it under the terms of the GNU General Public License as published by | |
e22f8b7c | 6 | # the Free Software Foundation; either version 3 of the License, or |
0312286c | 7 | # (at your option) any later version. |
e22f8b7c | 8 | # |
0312286c DJ |
9 | # This program is distributed in the hope that it will be useful, |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU General Public License for more details. | |
e22f8b7c | 13 | # |
0312286c | 14 | # You should have received a copy of the GNU General Public License |
e22f8b7c | 15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
0312286c | 16 | |
0312286c DJ |
17 | # This file was written by Daniel Jacobowitz <drow@mvista.com> |
18 | # (parts based on pthreads.exp by Fred Fish (fnf@cygnus.com). | |
19 | # | |
20 | # This test covers the various forms of "set scheduler-locking". | |
21 | ||
22 | if $tracelevel then { | |
23 | strace $tracelevel | |
24 | } | |
25 | ||
26 | set prms_id 0 | |
27 | set bug_id 0 | |
28 | ||
29 | set testfile "schedlock" | |
30 | set srcfile ${testfile}.c | |
31 | set binfile ${objdir}/${subdir}/${testfile} | |
32 | ||
18ecae38 DJ |
33 | # The number of threads, including the main thread. |
34 | set NUM 2 | |
35 | ||
b5ab8ff3 | 36 | if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } { |
0312286c DJ |
37 | return -1 |
38 | } | |
39 | ||
40 | # Now we can proceed with the real testing. | |
41 | ||
42 | proc get_args { } { | |
43 | global list_count | |
44 | global gdb_prompt | |
e09490f1 DJ |
45 | global NUM |
46 | ||
47 | set pattern "(\[0-9\]+)" | |
48 | for {set i 1} {[expr $i < $NUM]} {incr i} { | |
49 | append pattern ", (\[0-9\]+)" | |
50 | } | |
0312286c DJ |
51 | |
52 | send_gdb "print args\n" | |
53 | gdb_expect { | |
e09490f1 | 54 | -re "\\\$\[0-9\]+ = {$pattern}.*$gdb_prompt" |
0312286c DJ |
55 | { |
56 | set list_count [expr $list_count + 1] | |
57 | pass "listed args ($list_count)" | |
e09490f1 DJ |
58 | |
59 | set result "" | |
60 | for {set i 1} {[expr $i <= $NUM]} {incr i} { | |
61 | lappend result $expect_out($i,string) | |
62 | } | |
63 | return $result | |
0312286c DJ |
64 | } |
65 | -re "$gdb_prompt" | |
66 | { | |
67 | fail "listed args ($list_count) (unknown output)" | |
68 | } | |
69 | timeout | |
70 | { | |
71 | fail "listed args ($list_count) (timeout)" | |
72 | } | |
73 | } | |
74 | } | |
75 | ||
76 | proc stop_process { description } { | |
77 | global gdb_prompt | |
78 | ||
79 | # For this to work we must be sure to consume the "Continuing." | |
80 | # message first, or GDB's signal handler may not be in place. | |
81 | after 1000 {send_gdb "\003"} | |
82 | gdb_expect { | |
83 | -re "Program received signal SIGINT.*$gdb_prompt $" | |
84 | { | |
85 | pass $description | |
86 | } | |
87 | timeout | |
88 | { | |
89 | fail "$description (timeout)" | |
90 | } | |
91 | } | |
92 | } | |
93 | ||
94 | proc get_current_thread { description } { | |
95 | global gdb_prompt | |
96 | ||
97 | send_gdb "bt\n" | |
98 | gdb_expect { | |
99 | -re "thread_function \\(arg=0x(\[0-9\])\\).*$gdb_prompt $" | |
100 | { | |
101 | pass $description | |
102 | return $expect_out(1,string) | |
103 | } | |
104 | -re "$gdb_prompt $" | |
105 | { | |
106 | fail "$description (unknown output)" | |
107 | } | |
108 | timeout | |
109 | { | |
110 | fail "$description (timeout)" | |
111 | } | |
112 | } | |
113 | } | |
114 | ||
115 | proc my_continue { msg } { | |
116 | send_gdb "continue\n" | |
117 | gdb_expect { | |
118 | -re "Continuing" | |
119 | { pass "continue ($msg)" } | |
120 | timeout | |
121 | { fail "continue ($msg) (timeout)" } | |
122 | } | |
123 | ||
124 | stop_process "stop all threads ($msg)" | |
125 | ||
a25fbfec | 126 | # Make sure we're in one of the non-main looping threads. |
18ecae38 | 127 | gdb_breakpoint [concat [gdb_get_line_number "schedlock.exp: main loop"] " if arg != 0"] |
0312286c DJ |
128 | gdb_continue_to_breakpoint "return to loop ($msg)" |
129 | delete_breakpoints | |
130 | } | |
131 | ||
132 | proc step_ten_loops { msg } { | |
133 | global gdb_prompt | |
134 | ||
135 | for {set i 0} {[expr $i < 10]} {set i [expr $i + 1]} { | |
136 | send_gdb "step\n" | |
137 | set other_step 0 | |
138 | gdb_expect { | |
139 | -re ".*myp\\) \\+\\+;\[\r\n\]+$gdb_prompt $" { | |
140 | pass "step to increment ($msg $i)" | |
141 | } | |
142 | -re "$gdb_prompt $" { | |
143 | if {$other_step == 0} { | |
144 | set other_step 1 | |
145 | send_gdb "step\n" | |
146 | exp_continue | |
147 | } else { | |
148 | fail "step to increment ($msg $i)" | |
149 | # FIXME cascade? | |
150 | } | |
151 | } | |
152 | timeout { | |
153 | fail "step to increment ($msg $i) (timeout)" | |
154 | } | |
155 | } | |
156 | } | |
157 | } | |
158 | ||
159 | # Start with a fresh gdb. | |
160 | ||
161 | gdb_exit | |
162 | gdb_start | |
163 | gdb_reinitialize_dir $srcdir/$subdir | |
164 | ||
165 | # We'll need this when we send_gdb a ^C to GDB. Need to do it before we | |
166 | # run the program and gdb starts saving and restoring tty states. | |
167 | # On Ultrix, we don't need it and it is really slow (because shell_escape | |
168 | # doesn't use vfork). | |
169 | if ![istarget "*-*-ultrix*"] then { | |
170 | gdb_test "shell stty intr '^C'" "" | |
171 | } | |
172 | ||
173 | gdb_load ${binfile} | |
174 | ||
175 | gdb_test "set print sevenbit-strings" "" | |
176 | gdb_test "set width 0" "" | |
177 | ||
178 | runto_main | |
179 | ||
180 | # See if scheduler locking is available on this target. | |
181 | send_gdb "set scheduler-locking off\n" | |
182 | global gdb_prompt | |
183 | gdb_expect { | |
184 | -re "Target .* cannot support this command" | |
185 | { | |
186 | unsupported "target does not support scheduler locking" | |
187 | return | |
188 | } | |
189 | -re "$gdb_prompt $" | |
190 | { | |
191 | pass "scheduler locking set to none" | |
192 | } | |
193 | timeout | |
194 | { | |
195 | unsupported "target does not support scheduler locking (timeout)" | |
196 | return | |
197 | } | |
198 | } | |
199 | ||
200 | gdb_breakpoint [gdb_get_line_number "schedlock.exp: last thread start"] | |
201 | gdb_continue_to_breakpoint "all threads started" | |
202 | ||
203 | global list_count | |
204 | set list_count 0 | |
205 | ||
206 | set start_args [get_args] | |
207 | ||
208 | # First make sure that all threads are alive. | |
209 | my_continue "initial" | |
210 | ||
211 | set cont_args [get_args] | |
212 | ||
e09490f1 | 213 | set bad 0 |
18ecae38 | 214 | for {set i 0} {[expr $i < $NUM]} {set i [expr $i + 1]} { |
0312286c | 215 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { |
e09490f1 | 216 | incr bad |
0312286c DJ |
217 | } |
218 | } | |
e09490f1 | 219 | if { $bad == 0 } { |
18ecae38 DJ |
220 | pass "all threads alive" |
221 | } else { | |
e09490f1 | 222 | fail "all threads alive ($bad/$NUM did not run)" |
18ecae38 | 223 | } |
0312286c DJ |
224 | |
225 | # We can't change threads, unfortunately, in current GDB. Use | |
226 | # whichever we stopped in. | |
227 | set curthread [get_current_thread "find current thread (1)"] | |
228 | ||
229 | ||
230 | ||
231 | ||
232 | # Test stepping without scheduler locking. | |
233 | gdb_test "set scheduler-locking off" "" | |
234 | ||
235 | step_ten_loops "unlocked" | |
236 | ||
237 | # Make sure we're still in the same thread. | |
238 | set newthread [get_current_thread "find current thread (2)"] | |
239 | if {$curthread == $newthread} { | |
240 | pass "step without lock does not change thread" | |
241 | } else { | |
242 | fail "step without lock does not change thread (switched to thread $newthread)" | |
243 | } | |
244 | ||
245 | set start_args $cont_args | |
246 | set cont_args [get_args] | |
247 | ||
a25fbfec | 248 | set num_other_threads 0 |
18ecae38 | 249 | for {set i 0} {[expr $i < $NUM]} {set i [expr $i + 1]} { |
0312286c DJ |
250 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { |
251 | if {$i == $curthread} { | |
252 | fail "current thread stepped (didn't run)" | |
0312286c DJ |
253 | } |
254 | } else { | |
255 | if {$i == $curthread} { | |
256 | if {[lindex $start_args $i] == [expr [lindex $cont_args $i] - 10]} { | |
257 | pass "current thread stepped" | |
258 | } else { | |
259 | fail "current thread stepped (wrong amount)" | |
260 | } | |
261 | } else { | |
a25fbfec | 262 | set num_other_threads [expr $num_other_threads + 1] |
0312286c DJ |
263 | } |
264 | } | |
265 | } | |
a25fbfec | 266 | if {$num_other_threads > 0} { |
18ecae38 | 267 | pass "other threads ran - unlocked" |
a25fbfec | 268 | } else { |
18ecae38 | 269 | fail "other threads ran - unlocked" |
a25fbfec | 270 | } |
0312286c DJ |
271 | |
272 | # Test continue with scheduler locking | |
273 | gdb_test "set scheduler-locking on" "" | |
274 | ||
275 | my_continue "with lock" | |
276 | ||
277 | # Make sure we're still in the same thread. | |
278 | set newthread [get_current_thread "find current thread (3)"] | |
279 | if {$curthread == $newthread} { | |
280 | pass "continue with lock does not change thread" | |
281 | } else { | |
282 | fail "continue with lock does not change thread (switched to thread $newthread)" | |
283 | } | |
284 | ||
285 | set start_args $cont_args | |
286 | set cont_args [get_args] | |
287 | ||
18ecae38 DJ |
288 | set num_other_threads 0 |
289 | for {set i 0} {[expr $i < $NUM]} {set i [expr $i + 1]} { | |
0312286c DJ |
290 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { |
291 | if {$i == $curthread} { | |
292 | fail "current thread ran (didn't run)" | |
0312286c DJ |
293 | } |
294 | } else { | |
295 | if {$i == $curthread} { | |
296 | pass "current thread ran" | |
297 | } else { | |
18ecae38 | 298 | incr num_other_threads |
0312286c DJ |
299 | } |
300 | } | |
301 | } | |
18ecae38 DJ |
302 | if {$num_other_threads > 0} { |
303 | fail "other threads didn't run - locked" | |
304 | } else { | |
305 | pass "other threads didn't run - locked" | |
306 | } | |
0312286c DJ |
307 | |
308 | # Test stepping with scheduler locking | |
309 | step_ten_loops "locked" | |
310 | ||
311 | # Make sure we're still in the same thread. | |
312 | set newthread [get_current_thread "find current thread (2)"] | |
313 | if {$curthread == $newthread} { | |
314 | pass "step with lock does not change thread" | |
315 | } else { | |
316 | fail "step with lock does not change thread (switched to thread $newthread)" | |
317 | } | |
318 | ||
319 | set start_args $cont_args | |
320 | set cont_args [get_args] | |
321 | ||
18ecae38 DJ |
322 | set num_other_threads 0 |
323 | for {set i 0} {[expr $i < $NUM]} {set i [expr $i + 1]} { | |
0312286c DJ |
324 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { |
325 | if {$i == $curthread} { | |
326 | fail "current thread stepped locked (didn't run)" | |
0312286c DJ |
327 | } |
328 | } else { | |
329 | if {$i == $curthread} { | |
330 | if {[lindex $start_args $i] == [expr [lindex $cont_args $i] - 10]} { | |
331 | pass "current thread stepped locked" | |
332 | } else { | |
333 | fail "current thread stepped locked (wrong amount)" | |
334 | } | |
335 | } else { | |
18ecae38 | 336 | incr num_other_threads |
0312286c DJ |
337 | } |
338 | } | |
339 | } | |
18ecae38 DJ |
340 | if {$num_other_threads > 0} { |
341 | fail "other threads didn't run - step locked" | |
342 | } else { | |
343 | pass "other threads didn't run - step locked" | |
344 | } | |
0312286c DJ |
345 | |
346 | return 0 |