blob: 2e28209a42099fe56119bc70c994cff03d461b20 (
plain)
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
|
# Copyright 2013-2016 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/>.
standard_testfile
set executable ${testfile}
if { [gdb_compile_pthreads \
"${srcdir}/${subdir}/${srcfile}" \
"${binfile}" \
executable {debug}] != "" } {
untested "failed to compile"
return -1
}
clean_restart $executable
# Start the second thread.
if ![runto start] {
return -1
}
# Go back to the main thread, and leave it in the loop, where we're
# reasonably sure we don't have 'conditional jmp $pc'-like
# instructions. We wouldn't be able to detect whether a stepi makes
# progress over those.
gdb_test_no_output "set scheduler-locking on"
gdb_test "thread 1" "Switching to .*"
gdb_breakpoint $srcfile:[gdb_get_line_number "set break 2 here"]
gdb_continue_to_breakpoint "loop" ".* set break 2 here .*"
# Now back to thread 2, and let it queue a signal in thread 1.
gdb_test "thread 2" "Switching to .*"
gdb_breakpoint $srcfile:[gdb_get_line_number "set break here"]
gdb_continue_to_breakpoint "after pthread_kill" ".* set break here .*"
# We're now ready to stepi thread 1. It should immediately dequeue
# the signal.
gdb_test "thread 1" "Switching to .*" "thread 1 again"
# No longer need these.
delete_breakpoints
# Turn on infrun debugging, so we can tell whether the signal is
# really dequeued and that GDB sees it.
gdb_test_no_output "set debug infrun 1"
# Make sure the target backend reports the signal to GDB core. Some
# backends (like Linux) skip reporting a signal if set to
# pass/nostop/noprint, resuming the thread immediately instead.
gdb_test "handle SIGCHLD print"
# Helper to extract the current PC. PREFIX is used to make each call
# have its own unique test name.
proc get_pc { prefix } {
with_test_prefix "$prefix" {
return [get_hexadecimal_valueof "\$pc" ""]
}
}
set prev_addr [get_pc "before stepi"]
if {$prev_addr == ""} {
return
}
# True if we saw the infrun path we want to test be exercised.
set seen 0
set test "stepi"
if {[gdb_test_multiple "stepi" "$test" {
-re "infrun: random signal" {
set seen 1
exp_continue
}
-re "$gdb_prompt $" {
}
}] != 0} {
return
}
if {$seen} {
pass "$test"
} else {
fail "$test (no random signal)"
}
set addr [get_pc "after stepi"]
if {$addr == ""} {
return
}
set test "stepi interfered by signal makes progress"
if {$addr == $prev_addr} {
fail "$test"
} else {
pass "$test"
}
|
