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1d506c26 | 1 | # Copyright (C) 2017-2024 Free Software Foundation, Inc. |
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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 3 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, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # Please email any bugs, comments, and/or additions to this file to: | |
17 | # bug-gdb@gnu.org | |
18 | ||
2b0c8b01 | 19 | # This file verifies that methods Inferior.thread_from_handle |
947210e5 | 20 | # and InferiorThread.handle work as expected. |
757bf54b | 21 | |
947210e5 | 22 | load_lib gdb-python.exp |
757bf54b | 23 | |
d82e5429 | 24 | require allow_python_tests |
79749205 | 25 | |
947210e5 | 26 | standard_testfile |
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27 | |
28 | if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } { | |
29 | return -1 | |
30 | } | |
31 | ||
32 | clean_restart ${binfile} | |
8e68731c | 33 | |
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34 | runto_main |
35 | ||
36 | gdb_test "break after_mc_barrier" \ | |
37 | "Breakpoint 2 at .*: file .*${srcfile}, line .*" \ | |
38 | "breakpoint on after_mc_barrier" | |
39 | ||
40 | gdb_test "break do_something" \ | |
41 | "Breakpoint 3 at .*: file .*${srcfile}, line .*" \ | |
42 | "breakpoint on do_something" | |
43 | ||
44 | gdb_test "continue" \ | |
45 | "Breakpoint 2, after_mc_barrier .*" \ | |
46 | "run to after_mc_barrier" | |
47 | ||
48 | gdb_test_no_output "del 2" "delete after_mc_barrier breakpoint" | |
49 | ||
50 | gdb_test "continue" \ | |
51 | "Breakpoint 3, do_something .*" \ | |
52 | "run to do_something" | |
53 | ||
54 | # The test case has been constructed so that the current thread, | |
55 | # indicated by '*' in the "info threads" output, should be stopped in | |
56 | # do_something() with a value of n which is the same as the number | |
57 | # reported in the "Id" column. If it's not, then something went wrong | |
58 | # with the start up sequence which should cause the main thread to be | |
59 | # thread 1, the first child thread to be thread 2, and the second | |
60 | # child thread to be thread 3. | |
61 | # | |
62 | # Note that \1 in the RE below is a backreference to the thread id | |
63 | # reported in the "Id" column. | |
64 | ||
65 | gdb_test "info threads" \ | |
467a34bb | 66 | [format {.*[\r\n]+\* +([0-9]+) +%s[^\r\n]* do_something \(n=\1\) at.*} $tdlabel_re] |
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67 | |
68 | # Check for expected results when passing a valid thread handle to | |
2b0c8b01 | 69 | # thread_from_handle(). |
757bf54b | 70 | |
2b0c8b01 | 71 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[0\]')).num)" \ |
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72 | "1" "print thread id for thrs\[0\]" |
73 | ||
2b0c8b01 | 74 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[1\]')).num)" \ |
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75 | "2" "print thread id for thrs\[1\]" |
76 | ||
2b0c8b01 | 77 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[2\]')).num)" \ |
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78 | "3" "print thread id for thrs\[2\]" |
79 | ||
80 | # Objects which are of the correct size, but which are bogus thread | |
81 | # handles should return None. For the first test (using thrs[3]), we | |
82 | # use 0. For the second (thrs[4]), we use an unlikely bit pattern. | |
83 | ||
2b0c8b01 | 84 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[3\]')))" \ |
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85 | "None" "print thread for bogus handle thrs\[3\]" |
86 | ||
2b0c8b01 | 87 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[4\]')))" \ |
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88 | "None" "print thread for bogus handle thrs\[4\]" |
89 | ||
90 | # We should see an exception when passing an object of the wrong type. | |
91 | ||
2b0c8b01 | 92 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.lookup_symbol('main')))" \ |
a207f6b3 | 93 | ".*TypeError.*: Argument 'handle' must be a thread handle object.*" \ |
2b0c8b01 | 94 | "TypeError when passing a symbol object to thread_from_handle" |
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95 | |
96 | # We should see an exception when passing too large of an object. | |
97 | ||
2b0c8b01 | 98 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs')))" \ |
757bf54b | 99 | ".*Thread handle size mismatch.*" \ |
2b0c8b01 | 100 | "Pass overly large object to thread_from_handle" |
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101 | |
102 | # We should see an exception when passing too small of an object. | |
103 | ||
2b0c8b01 | 104 | gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('\"S\"')))" \ |
757bf54b | 105 | ".*Thread handle size mismatch.*" \ |
2b0c8b01 | 106 | "Pass too small of an object to thread_from_handle" |
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107 | |
108 | # Test the thread_handle method | |
109 | ||
110 | gdb_py_test_silent_cmd "python tp=gdb.lookup_type('pthread_t')" \ | |
111 | "Get pthread_t type" 0 | |
112 | gdb_py_test_silent_cmd "python inf=gdb.selected_inferior()" "Get inferior" 0 | |
113 | ||
114 | foreach thrN {0 1 2} { | |
115 | with_test_prefix "thread $thrN" { | |
116 | ||
117 | gdb_py_test_silent_cmd \ | |
118 | "python hand = gdb.parse_and_eval('thrs\[$thrN\]')" \ | |
119 | "fetch thread handle from inferior" \ | |
120 | 1 | |
121 | ||
122 | gdb_py_test_silent_cmd \ | |
2b0c8b01 | 123 | "python hand_bytes = inf.thread_from_handle(hand).handle()" \ |
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124 | "fetch thread handle from thread" \ |
125 | 1 | |
126 | ||
127 | ||
128 | # It'd be nice to be able to use this comparison expression: | |
129 | # | |
130 | # hand == hand_bytes | |
131 | # | |
132 | # But this won't work because hand is a gdb.Value and hand_bytes | |
133 | # is a Python bytes object. Therefore, we convert the bytes | |
134 | # object into a gdb.value by calling the two argument form of | |
135 | # its constructor. | |
136 | ||
137 | gdb_test "python print(gdb.Value(hand_bytes, tp) == hand)" \ | |
138 | "True" \ | |
139 | "verify that handles are the same" | |
140 | } | |
141 | } |