2008-03-21 Daniel Jacobowitz <dan@codesourcery.com>
[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.threads / step2.exp
CommitLineData
c906108c 1# step2.exp -- Expect script to test gdb step.c
9b254dd1 2# Copyright (C) 1992, 1997, 2007, 2008 Free Software Foundation, Inc.
c906108c
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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
c906108c 7# (at your option) any later version.
e22f8b7c 8#
c906108c
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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#
c906108c 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/>.
c906108c
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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 Jeff Law. (law@cygnus.com)
21#
22
23
24if $tracelevel then {
25 strace $tracelevel
26}
27
28set program_exited 0
29
30# A simple and crude test to see that we can step two threads independently
31proc test_multi_threaded_stepping {} {
32 global gdb_prompt
33 global hex
34 global srcfile
35 global decimal
36
37 # Set breakpoints in code that we know is executed in only
38 # thread of control.
39 gdb_test "break thread1" \
40 "Break.* at $hex: file .*$srcfile, line $decimal\\."
41 gdb_test "break thread2" \
42 "Break.* at $hex: file .*$srcfile, line $decimal\\."
43
44 # the order in which things happen is indeterminate. So we basically
45 # look for a set of events and note that each one happens and that
46 # all of the required events have happened when we're done.
47 #
48 # Right now we only verify that both threads start and that they
49 # both call pthread_cond_wait twice.
50 set thread1started 0
51 set thread1condwait 0
52 set thread2started 0
53 set thread2condwait 0
54
55 send_gdb "run\n"
56 gdb_expect {
57 -re "The program .* has been started already.*y or n. $" {
58 send_gdb "y\n"
59 exp_continue
60 }
61 -re ".*Breakpoint \[0-9\]+,.*thread1.* at .*$srcfile:.*\[\t \].*$gdb_prompt $" {
62 if { $thread1started != 0 } then {
63 fail "thread1 started"
64 return
65 } else {
66 set thread1started 1
67 pass "thread1 started"
68 }
69 send_gdb "step\n"
70 exp_continue
71 }
72 -re ".*Breakpoint \[0-9\]+,.*thread2.* at .*$srcfile:.*\[\t \].*$gdb_prompt $" {
73 if { $thread2started != 0 } then {
74 fail "thread2 started"
75 return
76 } else {
77 set thread2started 1
78 pass "thread2 started"
79 }
80 send_gdb "step\n"
81 exp_continue
82 }
83 -re ".*pthread_cond_wait.*cv_a.*$gdb_prompt" {
84 if { $thread1started == 0 } then {
85 fail "thread1 condwait"
86 return
87 }
88 if { $thread1condwait < 2 } then {
89 pass "thread1 condwait"
90 incr thread1condwait
91 }
92 if { $thread2condwait == 2 } then {
93 pass "multi threaded stepping"
94 return
95 }
96 send_gdb "step\n"
97 exp_continue
98 }
99
100 -re ".*pthread_cond_wait.*cv_b.*$gdb_prompt" {
101 if { $thread2started == 0 } then {
102 fail "thread2 condwait"
103 return
104 }
105 if { $thread2condwait < 2 } then {
106 pass "thread2 condwait"
107 incr thread2condwait
108 }
109 if { $thread1condwait == 2 } then {
110 pass "multi threaded stepping"
111 return
112 }
113 send_gdb "step\n"
114 exp_continue
115 }
116
117 -re "$gdb_prompt" {
118 send_gdb "step\n"
119 exp_continue
120 }
121 default { fail "multi threaded stepping" }
122 }
123}
124
125# Check to see if we have an executable to test. If not, then either we
126# haven't tried to compile one, or the compilation failed for some reason.
127# In either case, just notify the user and skip the tests in this file.
128
129set binfile "step"
130set srcfile "step.c"
131
132if ![file exists $objdir/$subdir/$binfile] then {
133 if $all_flag then {
134 warning "$binfile does not exist; tests suppressed."
135 }
136 return
137}
138
139set prms_id 0
140set bug_id 0
141
142# Start with a fresh gdb.
143
144gdb_exit
145gdb_start
146gdb_reinitialize_dir $srcdir/$subdir
147gdb_load $objdir/$subdir/$binfile
148
149test_multi_threaded_stepping
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