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
|
# Copyright (C) 2017-2020 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/>.
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@gnu.org
# This file verifies that methods Inferior.thread_from_handle
# and InferiorThread.handle work as expected.
load_lib gdb-python.exp
standard_testfile
if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
return -1
}
clean_restart ${binfile}
# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }
runto_main
gdb_test "break after_mc_barrier" \
"Breakpoint 2 at .*: file .*${srcfile}, line .*" \
"breakpoint on after_mc_barrier"
gdb_test "break do_something" \
"Breakpoint 3 at .*: file .*${srcfile}, line .*" \
"breakpoint on do_something"
gdb_test "continue" \
"Breakpoint 2, after_mc_barrier .*" \
"run to after_mc_barrier"
gdb_test_no_output "del 2" "delete after_mc_barrier breakpoint"
gdb_test "continue" \
"Breakpoint 3, do_something .*" \
"run to do_something"
# The test case has been constructed so that the current thread,
# indicated by '*' in the "info threads" output, should be stopped in
# do_something() with a value of n which is the same as the number
# reported in the "Id" column. If it's not, then something went wrong
# with the start up sequence which should cause the main thread to be
# thread 1, the first child thread to be thread 2, and the second
# child thread to be thread 3.
#
# Note that \1 in the RE below is a backreference to the thread id
# reported in the "Id" column.
gdb_test "info threads" \
{.*[\r\n]+\* +([0-9]+) +Thread[^\r\n]* do_something \(n=\1\) at.*}
# Check for expected results when passing a valid thread handle to
# thread_from_handle().
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[0\]')).num)" \
"1" "print thread id for thrs\[0\]"
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[1\]')).num)" \
"2" "print thread id for thrs\[1\]"
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[2\]')).num)" \
"3" "print thread id for thrs\[2\]"
# Objects which are of the correct size, but which are bogus thread
# handles should return None. For the first test (using thrs[3]), we
# use 0. For the second (thrs[4]), we use an unlikely bit pattern.
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[3\]')))" \
"None" "print thread for bogus handle thrs\[3\]"
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[4\]')))" \
"None" "print thread for bogus handle thrs\[4\]"
# We should see an exception when passing an object of the wrong type.
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.lookup_symbol('main')))" \
".*TypeError: Argument 'handle' must be a thread handle object.*" \
"TypeError when passing a symbol object to thread_from_handle"
# We should see an exception when passing too large of an object.
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs')))" \
".*Thread handle size mismatch.*" \
"Pass overly large object to thread_from_handle"
# We should see an exception when passing too small of an object.
gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('\"S\"')))" \
".*Thread handle size mismatch.*" \
"Pass too small of an object to thread_from_handle"
# Test the thread_handle method
gdb_py_test_silent_cmd "python tp=gdb.lookup_type('pthread_t')" \
"Get pthread_t type" 0
gdb_py_test_silent_cmd "python inf=gdb.selected_inferior()" "Get inferior" 0
foreach thrN {0 1 2} {
with_test_prefix "thread $thrN" {
gdb_py_test_silent_cmd \
"python hand = gdb.parse_and_eval('thrs\[$thrN\]')" \
"fetch thread handle from inferior" \
1
gdb_py_test_silent_cmd \
"python hand_bytes = inf.thread_from_handle(hand).handle()" \
"fetch thread handle from thread" \
1
# It'd be nice to be able to use this comparison expression:
#
# hand == hand_bytes
#
# But this won't work because hand is a gdb.Value and hand_bytes
# is a Python bytes object. Therefore, we convert the bytes
# object into a gdb.value by calling the two argument form of
# its constructor.
gdb_test "python print(gdb.Value(hand_bytes, tp) == hand)" \
"True" \
"verify that handles are the same"
}
}
|
GitWeb