OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [testsuite/] [gdb.threads/] [linux-dp.exp] - Blame information for rev 1765

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 106 markom
# Copyright (C) 1999 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
# Please email any bugs, comments, and/or additions to this file to:
18
# bug-gdb@gnu.org
19
 
20
#### Dining Philosophers, on LinuxThreads - Jim Blandy 
21
####
22
#### At the moment, GDB's support for LinuxThreads is pretty
23
#### idiosyncratic --- GDB's output doesn't look much like the output
24
#### it produces for other thread implementations, messages appear at
25
#### different times, etc.  So these tests are specific to LinuxThreads.
26
####
27
#### However, if all goes well, Linux will soon have a libthread_db
28
#### interface, and GDB will manage it the same way it does other
29
#### libthread_db-based systems.  Then, we can adjust this file to
30
#### work with any such system.
31
 
32
### Other things we ought to test:
33
### stepping a thread while others are running
34
### killing and restarting
35
### quitting gracefully
36
 
37
if $tracelevel then {
38
        strace $tracelevel
39
}
40
 
41
set prms_id 0
42
set bug_id 0
43
 
44
# This only works with Linux configurations.
45
if ![istarget *-*-linux-gnu] then {
46
    return
47
}
48
 
49
set testfile "linux-dp"
50
set srcfile ${testfile}.c
51
set binfile ${objdir}/${subdir}/${testfile}
52
if {[gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug libs=-lpthread}] != ""} {
53
    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
54
}
55
 
56
gdb_start
57
gdb_reinitialize_dir $srcdir/$subdir
58
gdb_load ${binfile}
59
send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
60
runto_main
61
 
62
# There should be no threads initially.
63
gdb_test "info threads" "" "info threads 1"
64
 
65
# Try stepping over the thread creation function.
66
gdb_breakpoint [gdb_get_line_number "linuxthreads.exp: create philosopher"]
67
for {set i 0} {$i < 5} {incr i} {
68
    gdb_continue_to_breakpoint "about to create philosopher: $i"
69
    send_gdb "next\n"
70
    gdb_expect {
71
        -re "\\\[New .*\\\].*$gdb_prompt $" {
72
            pass "create philosopher: $i"
73
        }
74
        -re "Program received signal.*(Unknown signal|SIGUSR).*$gdb_prompt $" {
75
            # It would be nice if we could catch the message that GDB prints
76
            # when it first notices that the thread library doesn't support
77
            # debugging, or if we could explicitly ask GDB somehow.
78
            unsupported "This GDB does not support threads on this system."
79
            return -1
80
        }
81
        -re "$gdb_prompt $" {
82
            fail "create philosopher: $i"
83
        }
84
        timeout {
85
            fail "(timeout) create philosopher: $i"
86
        }
87
    }
88
}
89
 
90
# Run until there are some threads.
91
gdb_breakpoint [gdb_get_line_number "linuxthreads.exp: info threads 2"]
92
gdb_continue_to_breakpoint "main thread's sleep"
93
gdb_test "info threads" "7 Thread .*6 Thread .*5 Thread .*4 Thread .*3 Thread .*2 Thread .*1 Thread .*" "info threads 2"
94
 
95
# Try setting a thread-specific breakpoint.
96
gdb_breakpoint "print_philosopher thread 5"
97
gdb_continue_to_breakpoint "thread 5's print"
98
gdb_test "where" "print_philosopher.*philosopher.*pthread_start_thread.*" \
99
        "first thread-specific breakpoint hit"
100
 
101
# Make sure it's catching the right thread.  Try hitting the
102
# breakpoint ten times, and make sure we don't get anyone else.
103
set only_five 1
104
for {set i 0} {$only_five > 0 && $i < 10} {incr i} {
105
    gdb_continue_to_breakpoint "thread 5's print, pass: $i"
106
    send_gdb "info threads\n"
107
    gdb_expect {
108
        -re "\\* 5 Thread .*  print_philosopher .*\r\n$gdb_prompt $" {
109
            # Okay this time.
110
        }
111
        -re ".*$gdb_prompt $" {
112
            set only_five 0
113
        }
114
        timeout {
115
            set only_five -1
116
        }
117
    }
118
}
119
 
120
set name "thread-specific breakpoint is thread-specific"
121
if {$only_five ==  1} { pass $name }
122
if {$only_five ==  0} { fail $name }
123
if {$only_five == -1} { fail "$name (timeout)" }
124
 
125
 
126
### Select a particular thread.
127
proc select_thread {thread} {
128
    global gdb_prompt
129
 
130
    send_gdb "thread $thread\n"
131
    gdb_expect {
132
        -re "\\\[Switching to thread .*\\\].*\r\n$gdb_prompt $" {
133
            pass "selected thread: $thread"
134
        }
135
        -re "$gdb_prompt $" {
136
            fail "selected thread: $thread"
137
        }
138
        timeout {
139
            fail "selected thread: $thread (timeout)"
140
        }
141
    }
142
}
143
 
144
### Select THREAD, check for a plausible backtrace, and make sure
145
### we're actually selecting a different philosopher each time.
146
### Return true if the thread had a stack which was not only
147
### acceptable, but interesting.  SEEN should be an array in which
148
### SEEN(N) exists iff we have found philosopher number N before.
149
proc check_philosopher_stack {thread seen_name} {
150
    global gdb_prompt
151
    upvar $seen_name seen
152
 
153
    set name "philosopher is distinct: $thread"
154
    set interesting 0
155
 
156
    select_thread $thread
157
    send_gdb "where\n"
158
    gdb_expect {
159
        -re ".* in philosopher \\(data=(0x\[0-9a-f\]+).*\r\n$gdb_prompt $" {
160
            set data $expect_out(1,string)
161
            if {[info exists seen($data)]} {
162
                fail $name
163
            } else {
164
                pass $name
165
                set seen($data) yep
166
            }
167
            set interesting 1
168
        }
169
        -re "pthread_start_thread.*\r\n$gdb_prompt $" {
170
            ## Maybe the thread hasn't started yet.
171
            pass $name
172
        }
173
        -re " in \\?\\?.*\r\n$gdb_prompt $" {
174
            ## Sometimes we can't get a backtrace.  I'm going to call
175
            ## this a pass, since we do verify that at least one
176
            ## thread was interesting, so we can get more consistent
177
            ## test suite totals.  But in my heart, I think it should
178
            ## be an xfail.
179
            pass $name
180
        }
181
        -re "$gdb_prompt $" {
182
            fail $name
183
        }
184
        timeout {
185
            fail "$name (timeout)"
186
        }
187
    }
188
 
189
    return $interesting
190
}
191
 
192
set any_interesting 0
193
array set seen {}
194
for {set i 3} {$i <= 7} {incr i} {
195
    if [check_philosopher_stack $i seen] {
196
        set any_interesting 1
197
    }
198
}
199
 
200
if {$any_interesting} {
201
    pass "found an interesting thread"
202
} else {
203
    fail "found an interesting thread"
204
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.