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c906108c SS |
1 | # step2.exp -- Expect script to test gdb step.c |
2 | # Copyright (C) 1992, 1997 Free Software Foundation, Inc. | |
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 | |
6 | # the Free Software Foundation; either version 2 of the License, or | |
7 | # (at your option) any later version. | |
8 | # | |
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. | |
13 | # | |
14 | # You should have received a copy of the GNU General Public License | |
15 | # along with this program; if not, write to the Free Software | |
16 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | ||
18 | # Please email any bugs, comments, and/or additions to this file to: | |
19 | # bug-gdb@prep.ai.mit.edu | |
20 | ||
21 | # This file was written by Jeff Law. (law@cygnus.com) | |
22 | # | |
23 | ||
24 | ||
25 | if $tracelevel then { | |
26 | strace $tracelevel | |
27 | } | |
28 | ||
29 | set program_exited 0 | |
30 | ||
31 | # A simple and crude test to see that we can step two threads independently | |
32 | proc test_multi_threaded_stepping {} { | |
33 | global gdb_prompt | |
34 | global hex | |
35 | global srcfile | |
36 | global decimal | |
37 | ||
38 | # Set breakpoints in code that we know is executed in only | |
39 | # thread of control. | |
40 | gdb_test "break thread1" \ | |
41 | "Break.* at $hex: file .*$srcfile, line $decimal\\." | |
42 | gdb_test "break thread2" \ | |
43 | "Break.* at $hex: file .*$srcfile, line $decimal\\." | |
44 | ||
45 | # the order in which things happen is indeterminate. So we basically | |
46 | # look for a set of events and note that each one happens and that | |
47 | # all of the required events have happened when we're done. | |
48 | # | |
49 | # Right now we only verify that both threads start and that they | |
50 | # both call pthread_cond_wait twice. | |
51 | set thread1started 0 | |
52 | set thread1condwait 0 | |
53 | set thread2started 0 | |
54 | set thread2condwait 0 | |
55 | ||
56 | send_gdb "run\n" | |
57 | gdb_expect { | |
58 | -re "The program .* has been started already.*y or n. $" { | |
59 | send_gdb "y\n" | |
60 | exp_continue | |
61 | } | |
62 | -re ".*Breakpoint \[0-9\]+,.*thread1.* at .*$srcfile:.*\[\t \].*$gdb_prompt $" { | |
63 | if { $thread1started != 0 } then { | |
64 | fail "thread1 started" | |
65 | return | |
66 | } else { | |
67 | set thread1started 1 | |
68 | pass "thread1 started" | |
69 | } | |
70 | send_gdb "step\n" | |
71 | exp_continue | |
72 | } | |
73 | -re ".*Breakpoint \[0-9\]+,.*thread2.* at .*$srcfile:.*\[\t \].*$gdb_prompt $" { | |
74 | if { $thread2started != 0 } then { | |
75 | fail "thread2 started" | |
76 | return | |
77 | } else { | |
78 | set thread2started 1 | |
79 | pass "thread2 started" | |
80 | } | |
81 | send_gdb "step\n" | |
82 | exp_continue | |
83 | } | |
84 | -re ".*pthread_cond_wait.*cv_a.*$gdb_prompt" { | |
85 | if { $thread1started == 0 } then { | |
86 | fail "thread1 condwait" | |
87 | return | |
88 | } | |
89 | if { $thread1condwait < 2 } then { | |
90 | pass "thread1 condwait" | |
91 | incr thread1condwait | |
92 | } | |
93 | if { $thread2condwait == 2 } then { | |
94 | pass "multi threaded stepping" | |
95 | return | |
96 | } | |
97 | send_gdb "step\n" | |
98 | exp_continue | |
99 | } | |
100 | ||
101 | -re ".*pthread_cond_wait.*cv_b.*$gdb_prompt" { | |
102 | if { $thread2started == 0 } then { | |
103 | fail "thread2 condwait" | |
104 | return | |
105 | } | |
106 | if { $thread2condwait < 2 } then { | |
107 | pass "thread2 condwait" | |
108 | incr thread2condwait | |
109 | } | |
110 | if { $thread1condwait == 2 } then { | |
111 | pass "multi threaded stepping" | |
112 | return | |
113 | } | |
114 | send_gdb "step\n" | |
115 | exp_continue | |
116 | } | |
117 | ||
118 | -re "$gdb_prompt" { | |
119 | send_gdb "step\n" | |
120 | exp_continue | |
121 | } | |
122 | default { fail "multi threaded stepping" } | |
123 | } | |
124 | } | |
125 | ||
126 | # Check to see if we have an executable to test. If not, then either we | |
127 | # haven't tried to compile one, or the compilation failed for some reason. | |
128 | # In either case, just notify the user and skip the tests in this file. | |
129 | ||
130 | set binfile "step" | |
131 | set srcfile "step.c" | |
132 | ||
133 | if ![file exists $objdir/$subdir/$binfile] then { | |
134 | if $all_flag then { | |
135 | warning "$binfile does not exist; tests suppressed." | |
136 | } | |
137 | return | |
138 | } | |
139 | ||
140 | set prms_id 0 | |
141 | set bug_id 0 | |
142 | ||
143 | # Start with a fresh gdb. | |
144 | ||
145 | gdb_exit | |
146 | gdb_start | |
147 | gdb_reinitialize_dir $srcdir/$subdir | |
148 | gdb_load $objdir/$subdir/$binfile | |
149 | ||
150 | test_multi_threaded_stepping |