]>
Commit | Line | Data |
---|---|---|
5a437975 DE |
1 | # Copyright (C) 2004, 2007, 2008 Free Software Foundation, Inc. |
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 3 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, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # Test making hand function calls in multiple threads. | |
17 | ||
18 | set NR_THREADS 4 | |
19 | ||
20 | if $tracelevel then { | |
21 | strace $tracelevel | |
22 | } | |
23 | ||
24 | set testfile "hand-call-in-threads" | |
25 | set srcfile ${testfile}.c | |
26 | set binfile ${objdir}/${subdir}/${testfile} | |
27 | ||
28 | if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}" "additional_flags=-DNR_THREADS=$NR_THREADS"]] != "" } { | |
29 | return -1 | |
30 | } | |
31 | ||
32 | # Some targets can't do function calls, so don't even bother with this | |
33 | # test. | |
34 | if [target_info exists gdb,cannot_call_functions] { | |
35 | setup_xfail "*-*-*" 2416 | |
36 | fail "This target can not call functions" | |
37 | continue | |
38 | } | |
39 | ||
40 | proc get_dummy_frame_number { } { | |
41 | global gdb_prompt | |
42 | ||
43 | send_gdb "bt\n" | |
44 | gdb_expect { | |
45 | -re "#(\[0-9\]*) *<function called from gdb>.*$gdb_prompt $" | |
46 | { | |
47 | return $expect_out(1,string) | |
48 | } | |
49 | -re "$gdb_prompt $" | |
50 | { | |
51 | return "" | |
52 | } | |
53 | timeout | |
54 | { | |
55 | return "" | |
56 | } | |
57 | } | |
58 | return "" | |
59 | } | |
60 | ||
61 | gdb_exit | |
62 | gdb_start | |
63 | gdb_reinitialize_dir $srcdir/$subdir | |
64 | gdb_load ${binfile} | |
65 | ||
66 | if { ![runto_main] } { | |
67 | fail "Can't run to main" | |
68 | return 0 | |
69 | } | |
70 | ||
71 | gdb_test "break all_threads_running" \ | |
72 | "Breakpoint 2 at .*: file .*${srcfile}, line .*" \ | |
73 | "breakpoint on all_threads_running" | |
74 | ||
75 | gdb_test "break hand_call" \ | |
76 | "Breakpoint 3 at .*: file .*${srcfile}, line .*" \ | |
77 | "breakpoint on hand_call" | |
78 | ||
79 | # Run the program and make sure GDB reports that we stopped after | |
80 | # hitting breakpoint 2 in all_threads_running(). | |
81 | ||
82 | gdb_test "continue" \ | |
83 | ".*Breakpoint 2, all_threads_running ().*" \ | |
84 | "run to all_threads_running" | |
85 | ||
86 | # Before we start making hand function calls, turn on scheduler locking. | |
87 | ||
88 | gdb_test "set scheduler-locking on" "" "enable scheduler locking" | |
89 | gdb_test "show scheduler-locking" ".* locking scheduler .* is \"on\"." "show scheduler locking on" | |
90 | ||
91 | # Now hand-call a function in each thread, having the function | |
92 | # stop without returning. | |
93 | ||
94 | # Add one for the main thread. | |
95 | set total_nr_threads [expr $NR_THREADS + 1] | |
96 | ||
97 | # Thread numbering in gdb is origin-1, so begin numbering at 1. | |
98 | for { set i 1 } { $i <= $total_nr_threads } { incr i } { | |
99 | set thread_nr $i | |
100 | gdb_test "thread $thread_nr" "" "prepare to make hand call, thread $thread_nr" | |
101 | gdb_test "call hand_call()" "Breakpoint 3, .*" "hand call, thread $thread_nr" | |
102 | } | |
103 | ||
104 | # Now have each hand-called function return. | |
105 | ||
106 | # Turn confirmation off for the "return" command. | |
107 | gdb_test "set confirm off" "" | |
108 | ||
109 | clear_xfail "*-*-*" | |
110 | ||
111 | for { set i 1 } { $i <= $total_nr_threads } { incr i } { | |
112 | set thread_nr $i | |
113 | gdb_test "thread $thread_nr" "" "prepare to discard hand call, thread $thread_nr" | |
114 | set frame_number [get_dummy_frame_number] | |
115 | if { "$frame_number" == "" } { | |
116 | fail "dummy stack frame number, thread $thread_nr" | |
117 | # Need something. | |
118 | set frame_number 0 | |
119 | } else { | |
120 | pass "dummy stack frame number, thread $thread_nr" | |
121 | } | |
122 | # Pop the dummy frame. | |
123 | gdb_test "frame $frame_number" "" "setting frame, thread $thread_nr" | |
124 | gdb_test "return" "" "discard hand call, thread $thread_nr" | |
125 | # In case getting the dummy frame number failed, re-enable for next iter. | |
126 | clear_xfail "*-*-*" | |
127 | } | |
128 | ||
129 | # Make sure all dummy frames got popped. | |
130 | ||
131 | gdb_test_multiple "maint print dummy-frames" "all dummies popped" { | |
132 | -re ".*stack=.*$gdb_prompt $" { | |
133 | fail "all dummies popped" | |
134 | } | |
135 | -re ".*$gdb_prompt $" { | |
136 | pass "all dummies popped" | |
137 | } | |
138 | } | |
139 | ||
140 | # Before we resume the full program, turn of scheduler locking. | |
141 | gdb_test "set scheduler-locking off" "" "disable scheduler locking" | |
142 | gdb_test "show scheduler-locking" ".* locking scheduler .* is \"off\"." "show scheduler locking off" | |
143 | ||
144 | # Continue one last time, the program should exit normally. | |
145 | # | |
146 | # ??? This currently doesn't work because gdb doesn't know how to singlestep | |
147 | # over reported breakpoints that weren't in the last thread to run. | |
148 | # Commented out until then. | |
149 | # | |
150 | # For reference sake ... | |
151 | # An alternative is to manually work around the issue by manually setting | |
152 | # the thread back to the first thread: the program is still at the | |
153 | # all_threads_running breakpoint, which wasn't the last thread to run, | |
154 | # and gdb doesn't know how to singlestep over reported breakpoints that | |
155 | # weren't in the last thread to run. | |
156 | #gdb_test "thread 1" "" "set thread to 1, prepare to resume" | |
157 | # | |
158 | #gdb_continue_to_end "hand-call-in-threads" | |
159 | ||
160 | return 0 |