1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
# manythreads.exp -- Expect script to test stopping many threads
# Copyright (C) 2004-2015 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This file was written by Jeff Johnston. (jjohnstn@redhat.com)
standard_testfile
set opts { debug }
if [info exists DEBUG] {
# make check RUNTESTFLAGS='gdb.threads/manythreads.exp DEBUG=1'
lappend opts "additional_flags=-DDEBUG"
}
if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $opts] != "" } {
return -1
}
clean_restart ${binfile}
gdb_test_no_output "set print sevenbit-strings"
runto_main
# We'll need this when we send_gdb a ^C to GDB. Need to do it before we
# run the program and gdb starts saving and restoring tty states.
gdb_test "shell stty intr '^C'" ".*"
set message "first continue"
gdb_test_multiple "continue" "first continue" {
-re "error:.*$gdb_prompt $" {
fail "$message"
}
-re "Continuing" {
pass "$message"
}
}
# Wait one second. This is better than the TCL "after" command, because
# we don't lose GDB's output while we do it.
remote_expect host 1 { timeout { } }
# Send a Ctrl-C and wait for the SIGINT.
proc interrupt_and_wait { message } {
global gdb_prompt
send_gdb "\003"
gdb_test_multiple "" $message {
-re "\\\[New \[^\]\]*\\\]\r\n" {
exp_continue
}
-re "\\\[\[^\]\]* exited\\\]\r\n" {
exp_continue
}
-re "Program received signal SIGINT.*$gdb_prompt $" {
pass "$message"
}
-re "$gdb_prompt $" {
# Note that with this regex order, if GDB emits [New
# Thread ...] output between "Program received signal" and
# the prompt, the "Program received signal" regex won't
# match. That's good, as if we see that happening, it's a
# regression.
#
# GDB makes sure to notify about signal stops, end of
# stepping ranges, etc., only after updating the thread
# list, otherwise that stop info would be easy to miss.
#
# A BROKEN example would be:
#
# ... pages of new threads output ...
# [New Thread NNN]
# ^C
# ... more new threads output ...
# [New Thread NNN]
# [New Thread NNN]
# Program received signal SIGINT, Interrupt.
# [New Thread NNN]
# [New Thread NNN]
# ... pages of new threads output ...
# [Switching to Thread NNN]
# foo () at foo.c:31
# 31 bar ();
#
fail $message
}
}
}
# Send a Ctrl-C and verify that we can do info threads and continue
interrupt_and_wait "stop threads 1"
set cmd "info threads"
set ok 0
gdb_test_multiple $cmd $cmd {
-re " 1 *Thread " {
set ok 1
exp_continue
}
-re ".*\r\n" {
# Eat this line and continue, to prevent the buffer overflowing.
exp_continue
}
-re "$gdb_prompt $" {
if { $ok } {
pass $cmd
} else {
fail $cmd
}
}
}
gdb_test_no_output "thread name zardoz" "give a name to the thread"
gdb_test "info threads" ".*zardoz.*" "check thread name"
set message "second continue"
gdb_test_multiple "continue" "second continue" {
-re "error:.*$gdb_prompt $" {
fail "$message"
}
-re "Continuing" {
pass "$message"
}
}
# Wait another second. If the program stops on its own, GDB has failed
# to handle duplicate SIGINTs sent to multiple threads.
set failed 0
remote_expect host 1 {
-re "\\\[New \[^\]\]*\\\]\r\n" {
exp_continue -continue_timer
}
-re "\\\[\[^\]\]* exited\\\]\r\n" {
exp_continue -continue_timer
}
-re "Program received signal SIGINT.*$gdb_prompt $" {
if { $failed == 0 } {
fail "check for duplicate SIGINT"
}
send_gdb "continue\n"
set failed 1
exp_continue
}
timeout {
if { $failed == 0 } {
pass "check for duplicate SIGINT"
}
}
}
# Send another Ctrl-C and verify that we can do info threads and quit
interrupt_and_wait "stop threads 2"
gdb_test_multiple "quit" "GDB exits after stopping multithreaded program" {
-re "Quit anyway\\? \\(y or n\\) $" {
send_gdb "y\n"
exp_continue
}
eof {
pass "GDB exits after stopping multithreaded program"
}
timeout {
fail "GDB exits after stopping multithreaded program (timeout)"
}
}
|
