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dc62bfc2 | 1 | # Copyright (C) 1996, 1997, 2002, 2003 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 | |
5 | # the Free Software Foundation; either version 2 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
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. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program; if not, write to the Free Software | |
15 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
16 | ||
17 | # Please email any bugs, comments, and/or additions to this file to: | |
18 | # bug-gdb@prep.ai.mit.edu | |
19 | ||
20 | # This file was written by Daniel Jacobowitz <drow@mvista.com> | |
21 | # (parts based on pthreads.exp by Fred Fish (fnf@cygnus.com). | |
22 | # | |
23 | # This test covers the various forms of "set scheduler-locking". | |
24 | ||
25 | if $tracelevel then { | |
26 | strace $tracelevel | |
27 | } | |
28 | ||
29 | set prms_id 0 | |
30 | set bug_id 0 | |
31 | ||
32 | set testfile "schedlock" | |
33 | set srcfile ${testfile}.c | |
34 | set binfile ${objdir}/${subdir}/${testfile} | |
35 | ||
b5ab8ff3 | 36 | if {[gdb_compile_pthreads "${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 | |
45 | ||
46 | send_gdb "print args\n" | |
47 | gdb_expect { | |
48 | -re "\\\$\[0-9\]+ = {(\[0-9\]+), (\[0-9\]+), (\[0-9\]+), (\[0-9\]+), (\[0-9\]+), (\[0-9\]+)}.*$gdb_prompt" | |
49 | { | |
50 | set list_count [expr $list_count + 1] | |
51 | pass "listed args ($list_count)" | |
52 | return [list $expect_out(1,string) $expect_out(2,string) $expect_out(3,string) $expect_out(4,string) $expect_out(5,string) $expect_out(6,string)] | |
53 | } | |
54 | -re "$gdb_prompt" | |
55 | { | |
56 | fail "listed args ($list_count) (unknown output)" | |
57 | } | |
58 | timeout | |
59 | { | |
60 | fail "listed args ($list_count) (timeout)" | |
61 | } | |
62 | } | |
63 | } | |
64 | ||
65 | proc stop_process { description } { | |
66 | global gdb_prompt | |
67 | ||
68 | # For this to work we must be sure to consume the "Continuing." | |
69 | # message first, or GDB's signal handler may not be in place. | |
70 | after 1000 {send_gdb "\003"} | |
71 | gdb_expect { | |
72 | -re "Program received signal SIGINT.*$gdb_prompt $" | |
73 | { | |
74 | pass $description | |
75 | } | |
76 | timeout | |
77 | { | |
78 | fail "$description (timeout)" | |
79 | } | |
80 | } | |
81 | } | |
82 | ||
83 | proc get_current_thread { description } { | |
84 | global gdb_prompt | |
85 | ||
86 | send_gdb "bt\n" | |
87 | gdb_expect { | |
88 | -re "thread_function \\(arg=0x(\[0-9\])\\).*$gdb_prompt $" | |
89 | { | |
90 | pass $description | |
91 | return $expect_out(1,string) | |
92 | } | |
93 | -re "$gdb_prompt $" | |
94 | { | |
95 | fail "$description (unknown output)" | |
96 | } | |
97 | timeout | |
98 | { | |
99 | fail "$description (timeout)" | |
100 | } | |
101 | } | |
102 | } | |
103 | ||
104 | proc my_continue { msg } { | |
105 | send_gdb "continue\n" | |
106 | gdb_expect { | |
107 | -re "Continuing" | |
108 | { pass "continue ($msg)" } | |
109 | timeout | |
110 | { fail "continue ($msg) (timeout)" } | |
111 | } | |
112 | ||
113 | stop_process "stop all threads ($msg)" | |
114 | ||
a25fbfec JJ |
115 | # Make sure we're in one of the non-main looping threads. |
116 | gdb_breakpoint [concat [gdb_get_line_number "schedlock.exp: main loop"] " if arg != 5"] | |
0312286c DJ |
117 | gdb_continue_to_breakpoint "return to loop ($msg)" |
118 | delete_breakpoints | |
119 | } | |
120 | ||
121 | proc step_ten_loops { msg } { | |
122 | global gdb_prompt | |
123 | ||
124 | for {set i 0} {[expr $i < 10]} {set i [expr $i + 1]} { | |
125 | send_gdb "step\n" | |
126 | set other_step 0 | |
127 | gdb_expect { | |
128 | -re ".*myp\\) \\+\\+;\[\r\n\]+$gdb_prompt $" { | |
129 | pass "step to increment ($msg $i)" | |
130 | } | |
131 | -re "$gdb_prompt $" { | |
132 | if {$other_step == 0} { | |
133 | set other_step 1 | |
134 | send_gdb "step\n" | |
135 | exp_continue | |
136 | } else { | |
137 | fail "step to increment ($msg $i)" | |
138 | # FIXME cascade? | |
139 | } | |
140 | } | |
141 | timeout { | |
142 | fail "step to increment ($msg $i) (timeout)" | |
143 | } | |
144 | } | |
145 | } | |
146 | } | |
147 | ||
148 | # Start with a fresh gdb. | |
149 | ||
150 | gdb_exit | |
151 | gdb_start | |
152 | gdb_reinitialize_dir $srcdir/$subdir | |
153 | ||
154 | # We'll need this when we send_gdb a ^C to GDB. Need to do it before we | |
155 | # run the program and gdb starts saving and restoring tty states. | |
156 | # On Ultrix, we don't need it and it is really slow (because shell_escape | |
157 | # doesn't use vfork). | |
158 | if ![istarget "*-*-ultrix*"] then { | |
159 | gdb_test "shell stty intr '^C'" "" | |
160 | } | |
161 | ||
162 | gdb_load ${binfile} | |
163 | ||
164 | gdb_test "set print sevenbit-strings" "" | |
165 | gdb_test "set width 0" "" | |
166 | ||
167 | runto_main | |
168 | ||
169 | # See if scheduler locking is available on this target. | |
170 | send_gdb "set scheduler-locking off\n" | |
171 | global gdb_prompt | |
172 | gdb_expect { | |
173 | -re "Target .* cannot support this command" | |
174 | { | |
175 | unsupported "target does not support scheduler locking" | |
176 | return | |
177 | } | |
178 | -re "$gdb_prompt $" | |
179 | { | |
180 | pass "scheduler locking set to none" | |
181 | } | |
182 | timeout | |
183 | { | |
184 | unsupported "target does not support scheduler locking (timeout)" | |
185 | return | |
186 | } | |
187 | } | |
188 | ||
189 | gdb_breakpoint [gdb_get_line_number "schedlock.exp: last thread start"] | |
190 | gdb_continue_to_breakpoint "all threads started" | |
191 | ||
192 | global list_count | |
193 | set list_count 0 | |
194 | ||
195 | set start_args [get_args] | |
196 | ||
197 | # First make sure that all threads are alive. | |
198 | my_continue "initial" | |
199 | ||
200 | set cont_args [get_args] | |
201 | ||
202 | for {set i 0} {[expr $i < 6]} {set i [expr $i + 1]} { | |
203 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { | |
204 | fail "thread $i ran (didn't run)" | |
205 | } else { | |
206 | pass "thread $i ran" | |
207 | } | |
208 | } | |
209 | ||
210 | # We can't change threads, unfortunately, in current GDB. Use | |
211 | # whichever we stopped in. | |
212 | set curthread [get_current_thread "find current thread (1)"] | |
213 | ||
214 | ||
215 | ||
216 | ||
217 | # Test stepping without scheduler locking. | |
218 | gdb_test "set scheduler-locking off" "" | |
219 | ||
220 | step_ten_loops "unlocked" | |
221 | ||
222 | # Make sure we're still in the same thread. | |
223 | set newthread [get_current_thread "find current thread (2)"] | |
224 | if {$curthread == $newthread} { | |
225 | pass "step without lock does not change thread" | |
226 | } else { | |
227 | fail "step without lock does not change thread (switched to thread $newthread)" | |
228 | } | |
229 | ||
230 | set start_args $cont_args | |
231 | set cont_args [get_args] | |
232 | ||
a25fbfec | 233 | set num_other_threads 0 |
0312286c DJ |
234 | for {set i 0} {[expr $i < 6]} {set i [expr $i + 1]} { |
235 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { | |
236 | if {$i == $curthread} { | |
237 | fail "current thread stepped (didn't run)" | |
0312286c DJ |
238 | } |
239 | } else { | |
240 | if {$i == $curthread} { | |
241 | if {[lindex $start_args $i] == [expr [lindex $cont_args $i] - 10]} { | |
242 | pass "current thread stepped" | |
243 | } else { | |
244 | fail "current thread stepped (wrong amount)" | |
245 | } | |
246 | } else { | |
a25fbfec | 247 | set num_other_threads [expr $num_other_threads + 1] |
0312286c DJ |
248 | } |
249 | } | |
250 | } | |
a25fbfec JJ |
251 | if {$num_other_threads > 0} { |
252 | pass "other threads ran (1)" | |
253 | } else { | |
254 | fail "other threads ran (no other threads ran) (1)" | |
255 | } | |
0312286c DJ |
256 | |
257 | # Test continue with scheduler locking | |
258 | gdb_test "set scheduler-locking on" "" | |
259 | ||
260 | my_continue "with lock" | |
261 | ||
262 | # Make sure we're still in the same thread. | |
263 | set newthread [get_current_thread "find current thread (3)"] | |
264 | if {$curthread == $newthread} { | |
265 | pass "continue with lock does not change thread" | |
266 | } else { | |
267 | fail "continue with lock does not change thread (switched to thread $newthread)" | |
268 | } | |
269 | ||
270 | set start_args $cont_args | |
271 | set cont_args [get_args] | |
272 | ||
273 | for {set i 0} {[expr $i < 6]} {set i [expr $i + 1]} { | |
274 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { | |
275 | if {$i == $curthread} { | |
276 | fail "current thread ran (didn't run)" | |
277 | } else { | |
278 | pass "other thread $i didn't run" | |
279 | } | |
280 | } else { | |
281 | if {$i == $curthread} { | |
282 | pass "current thread ran" | |
283 | } else { | |
284 | fail "other thread $i didn't run (ran)" | |
285 | } | |
286 | } | |
287 | } | |
288 | ||
289 | # Test stepping with scheduler locking | |
290 | step_ten_loops "locked" | |
291 | ||
292 | # Make sure we're still in the same thread. | |
293 | set newthread [get_current_thread "find current thread (2)"] | |
294 | if {$curthread == $newthread} { | |
295 | pass "step with lock does not change thread" | |
296 | } else { | |
297 | fail "step with lock does not change thread (switched to thread $newthread)" | |
298 | } | |
299 | ||
300 | set start_args $cont_args | |
301 | set cont_args [get_args] | |
302 | ||
303 | for {set i 0} {[expr $i < 6]} {set i [expr $i + 1]} { | |
304 | if {[lindex $start_args $i] == [lindex $cont_args $i]} { | |
305 | if {$i == $curthread} { | |
306 | fail "current thread stepped locked (didn't run)" | |
307 | } else { | |
308 | pass "other thread $i didn't run (stepping)" | |
309 | } | |
310 | } else { | |
311 | if {$i == $curthread} { | |
312 | if {[lindex $start_args $i] == [expr [lindex $cont_args $i] - 10]} { | |
313 | pass "current thread stepped locked" | |
314 | } else { | |
315 | fail "current thread stepped locked (wrong amount)" | |
316 | } | |
317 | } else { | |
318 | fail "other thread $i didn't run (stepping) (ran)" | |
319 | } | |
320 | } | |
321 | } | |
322 | ||
323 | return 0 |