1 # Copyright (C) 1996, 1997, 2002, 2003 Free Software Foundation, Inc.
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.
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.
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.
17 # Please email any bugs, comments, and/or additions to this file to:
18 # bug-gdb@prep.ai.mit.edu
20 # This file was written by Daniel Jacobowitz <drow@mvista.com>
21 # (parts based on pthreads.exp by Fred Fish (fnf@cygnus.com).
23 # This test covers the various forms of "set scheduler-locking".
32 set testfile "schedlock"
33 set srcfile ${testfile}.c
34 set binfile ${objdir}/${subdir}/${testfile}
36 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
40 # Now we can proceed with the real testing.
46 send_gdb "print args\n"
48 -re "\\\$\[0-9\]+ = {(\[0-9\]+), (\[0-9\]+), (\[0-9\]+), (\[0-9\]+), (\[0-9\]+), (\[0-9\]+)}.*$gdb_prompt"
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) $expect_out(6,string)]
56 fail "listed args ($list_count) (unknown output)"
60 fail "listed args ($list_count) (timeout)"
65 proc stop_process { description } {
68 # For this to work we must be sure to consume the "Continuing."
69 # message first, or GDB's signal handler may not be in place.
70 after 1000 {send_gdb "\003"}
72 -re "Program received signal SIGINT.*$gdb_prompt $"
78 fail "$description (timeout)"
83 proc get_current_thread { description } {
88 -re "thread_function \\(arg=0x(\[0-9\])\\).*$gdb_prompt $"
91 return $expect_out(1,string)
95 fail "$description (unknown output)"
99 fail "$description (timeout)"
104 proc my_continue { msg } {
105 send_gdb "continue\n"
108 { pass "continue ($msg)" }
110 { fail "continue ($msg) (timeout)" }
113 stop_process "stop all threads ($msg)"
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"]
117 gdb_continue_to_breakpoint "return to loop ($msg)"
121 proc step_ten_loops { msg } {
124 for {set i 0} {[expr $i < 10]} {set i [expr $i + 1]} {
128 -re ".*myp\\) \\+\\+;\[\r\n\]+$gdb_prompt $" {
129 pass "step to increment ($msg $i)"
131 -re "$gdb_prompt $" {
132 if {$other_step == 0} {
137 fail "step to increment ($msg $i)"
142 fail "step to increment ($msg $i) (timeout)"
148 # Start with a fresh gdb.
152 gdb_reinitialize_dir $srcdir/$subdir
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'" ""
164 gdb_test "set print sevenbit-strings" ""
165 gdb_test "set width 0" ""
169 # See if scheduler locking is available on this target.
170 send_gdb "set scheduler-locking off\n"
173 -re "Target .* cannot support this command"
175 unsupported "target does not support scheduler locking"
180 pass "scheduler locking set to none"
184 unsupported "target does not support scheduler locking (timeout)"
189 gdb_breakpoint [gdb_get_line_number "schedlock.exp: last thread start"]
190 gdb_continue_to_breakpoint "all threads started"
195 set start_args [get_args]
197 # First make sure that all threads are alive.
198 my_continue "initial"
200 set cont_args [get_args]
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 $i ran (didn't run)"
210 # We can't change threads, unfortunately, in current GDB. Use
211 # whichever we stopped in.
212 set curthread [get_current_thread "find current thread (1)"]
217 # Test stepping without scheduler locking.
218 gdb_test "set scheduler-locking off" ""
220 step_ten_loops "unlocked"
222 # Make sure we're still in the same thread.
223 set newthread [get_current_thread "find current thread (2)"]
224 if {$curthread == $newthread} {
225 pass "step without lock does not change thread"
227 fail "step without lock does not change thread (switched to thread $newthread)"
230 set start_args $cont_args
231 set cont_args [get_args]
233 set num_other_threads 0
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 == $curthread} {
237 fail "current thread stepped (didn't run)"
240 if {$i == $curthread} {
241 if {[lindex $start_args $i] == [expr [lindex $cont_args $i] - 10]} {
242 pass "current thread stepped"
244 fail "current thread stepped (wrong amount)"
247 set num_other_threads [expr $num_other_threads + 1]
251 if {$num_other_threads > 0} {
252 pass "other threads ran (1)"
254 fail "other threads ran (no other threads ran) (1)"
257 # Test continue with scheduler locking
258 gdb_test "set scheduler-locking on" ""
260 my_continue "with lock"
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"
267 fail "continue with lock does not change thread (switched to thread $newthread)"
270 set start_args $cont_args
271 set cont_args [get_args]
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)"
278 pass "other thread $i didn't run"
281 if {$i == $curthread} {
282 pass "current thread ran"
284 fail "other thread $i didn't run (ran)"
289 # Test stepping with scheduler locking
290 step_ten_loops "locked"
292 # Make sure we're still in the same thread.
293 set newthread [get_current_thread "find current thread (2)"]
294 if {$curthread == $newthread} {
295 pass "step with lock does not change thread"
297 fail "step with lock does not change thread (switched to thread $newthread)"
300 set start_args $cont_args
301 set cont_args [get_args]
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)"
308 pass "other thread $i didn't run (stepping)"
311 if {$i == $curthread} {
312 if {[lindex $start_args $i] == [expr [lindex $cont_args $i] - 10]} {
313 pass "current thread stepped locked"
315 fail "current thread stepped locked (wrong amount)"
318 fail "other thread $i didn't run (stepping) (ran)"