1# Copyright 2003, 2004 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 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# This file was written by Joel Brobecker (brobecker@gnat.com), derived
18# from xfullpath.exp.
19
20if $tracelevel then {
21    strace $tracelevel
22}
23
24set prms_id 0
25set bug_id 0
26
27# are we on a target board
28if [is_remote target] {
29    return
30}
31
32proc setup_test { executable } {
33    global gdb_prompt
34    global timeout
35
36    # load yourself into the debugger
37    # This can take a relatively long time, particularly for testing where
38    # the executable is being accessed over a network, or where gdb does not
39    # support partial symbols for a particular target and has to load the
40    # entire symbol table.  Set the timeout to 10 minutes, which should be
41    # adequate for most environments (it *has* timed out with 5 min on a
42    # SPARCstation SLC under moderate load, so this isn't unreasonable).
43    # After gdb is started, set the timeout to 30 seconds for the duration
44    # of this test, and then back to the original value.
45
46    set oldtimeout $timeout
47    set timeout 600
48    verbose "Timeout is now $timeout seconds" 2
49
50    global gdb_file_cmd_debug_info
51    set gdb_file_cmd_debug_info "unset"
52
53    set result [gdb_load $executable]
54    set timeout $oldtimeout
55    verbose "Timeout is now $timeout seconds" 2
56
57    if { $result != 0 } then {
58	return -1
59    }
60
61    if { $gdb_file_cmd_debug_info != "debug" } then {
62	untested "No debug information, skipping testcase."
63	return -1
64    }
65
66    # Set a breakpoint at main
67    gdb_test "break captured_main" \
68            "Breakpoint.*at.* file.*, line.*" \
69            "breakpoint in captured_main"
70
71    # run yourself
72    # It may take a very long time for the inferior gdb to start (lynx),
73    # so we bump it back up for the duration of this command.
74    set timeout 600
75
76    set description "run until breakpoint at captured_main"
77    gdb_test_multiple "run -nw" "$description" {
78        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
79            pass "$description"
80        }
81        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
82            xfail "$description (line numbers scrambled?)"
83        }
84        -re "vfork: No more processes.*$gdb_prompt $" {
85            fail "$description (out of virtual memory)"
86            set timeout $oldtimeout
87            verbose "Timeout is now $timeout seconds" 2
88            return -1
89        }
90        -re ".*$gdb_prompt $" {
91            fail "$description"
92            set timeout $oldtimeout
93            verbose "Timeout is now $timeout seconds" 2
94            return -1
95        }
96    }
97
98    set timeout $oldtimeout
99    verbose "Timeout is now $timeout seconds" 2
100
101    return 0
102}
103
104proc attach_first_observer { message } {
105    gdb_test "set \$first_obs = observer_attach_normal_stop (&observer_test_first_notification_function)" \
106	"" "$message; attach first observer"
107}
108
109proc attach_second_observer { message } {
110    gdb_test "set \$second_obs = observer_attach_normal_stop (&observer_test_second_notification_function)" \
111	"" "$message; attach second observer"
112}
113
114proc attach_third_observer { message } {
115    gdb_test "set \$third_obs = observer_attach_normal_stop (&observer_test_third_notification_function)" \
116	"" "$message; attach third observer"
117}
118
119proc detach_first_observer { message } {
120    gdb_test "call observer_detach_normal_stop (\$first_obs)" \
121	"" "$message; detach first observer"
122}
123
124proc detach_second_observer { message } {
125    gdb_test "call observer_detach_normal_stop (\$second_obs)" \
126	"" "$message; detach second observer"
127}
128
129proc detach_third_observer { message } {
130    gdb_test "call observer_detach_normal_stop (\$third_obs)" \
131	"" "$message; detach third observer"
132}
133
134proc check_counters { first second third message } {
135    gdb_test "print observer_test_first_observer" \
136	".\[0-9\]+ =.*$first" \
137	"$message; check first observer counter value"
138    gdb_test "print observer_test_second_observer" \
139	".\[0-9\]+ =.*$second" \
140	"$message; check second observer counter value"
141    gdb_test "print observer_test_third_observer" \
142	".\[0-9\]+ =.*$third" \
143	"$message; check third observer counter value"
144}
145
146proc reset_counters { message } {
147    gdb_test "set variable observer_test_first_observer = 0" "" \
148	"$message; reset first observer counter"
149    gdb_test "set variable observer_test_second_observer = 0" "" \
150	"$message; reset second observer counter"
151    gdb_test "set variable observer_test_third_observer = 0" "" \
152	"$message; reset third observer counter"
153}
154
155proc test_normal_stop_notifications { first second third message args } {
156    # Do any initialization
157    for {set i 0} {$i < [llength $args]} {incr i} {
158	[lindex $args $i] $message
159    }
160    reset_counters $message
161    # Call observer_notify_normal_stop.  Note that this procedure
162    # takes one argument, but this argument is ignored by the observer
163    # callbacks we have installed.  So we just pass an arbitrary value.
164    gdb_test "call observer_notify_normal_stop (0)" "" \
165	"$message; sending notification"
166    check_counters $first $second $third $message
167}
168
169proc test_observer_normal_stop { executable } {
170
171    set setup_result [setup_test $executable]
172    if {$setup_result <0} then {
173        return -1
174    }
175
176    # First, try sending a notification without any observer attached.
177    test_normal_stop_notifications 0 0 0 "no observer attached"
178
179    # Now, attach one observer, and send a notification.
180    test_normal_stop_notifications 0 1 0 "second observer attached" \
181	attach_second_observer
182
183    # Remove the observer, and send a notification.
184    test_normal_stop_notifications 0 0 0 "second observer detached" \
185	detach_second_observer
186
187    # With a new observer.
188    test_normal_stop_notifications 1 0 0 "1st observer added" \
189	attach_first_observer
190
191    # With 2 observers.
192    test_normal_stop_notifications 1 1 0 "2nd observer added" \
193	attach_second_observer
194
195    # With 3 observers.
196    test_normal_stop_notifications 1 1 1 "3rd observer added" \
197	attach_third_observer
198
199    # Remove middle observer.
200    test_normal_stop_notifications 1 0 1 "2nd observer removed" \
201	detach_second_observer
202
203    # Remove first observer.
204    test_normal_stop_notifications 0 0 1 "1st observer removed" \
205	detach_first_observer
206
207    # Remove last observer.
208    test_normal_stop_notifications 0 0 0 "3rd observer removed" \
209	detach_third_observer
210
211    # Go back to 3 observers, and remove them in a different order...
212    test_normal_stop_notifications 1 1 1 "three observers added" \
213	attach_first_observer \
214	attach_second_observer \
215	attach_third_observer
216
217    # Remove the third observer.
218    test_normal_stop_notifications 1 1 0 "third observer removed" \
219	detach_third_observer
220
221    # Remove the second observer.
222    test_normal_stop_notifications 1 0 0 "second observer removed" \
223	detach_second_observer
224
225    # Remove the first observer, no more observers.
226    test_normal_stop_notifications 0 0 0 "first observer removed" \
227	detach_first_observer
228
229    return 0
230}
231
232# Find a pathname to a file that we would execute if the shell was asked
233# to run $arg using the current PATH.
234
235proc find_gdb { arg } {
236
237    # If the arg directly specifies an existing executable file, then
238    # simply use it.
239
240    if [file executable $arg] then {
241	return $arg
242    }
243
244    set result [which $arg]
245    if [string match "/" [ string range $result 0 0 ]] then {
246	return $result
247    }
248
249    # If everything fails, just return the unqualified pathname as default
250    # and hope for best.
251
252    return $arg
253}
254
255# Run the test with self.
256# Copy the file executable file in case this OS doesn't like to edit its own
257# text space.
258
259set GDB_FULLPATH [find_gdb $GDB]
260
261# Remove any old copy lying around.
262remote_file host delete x$tool
263
264gdb_start
265set file [remote_download host $GDB_FULLPATH x$tool]
266set result [test_observer_normal_stop $file];
267gdb_exit;
268catch "remote_file host delete $file";
269
270if {$result <0} then {
271    warning "Couldn't test self"
272    return -1
273}
274