1 // SPDX-License-Identifier: GPL-2.0 1
2 #include "tests.h"
3 #include "machine.h"
4 #include "thread.h"
5 #include "debug.h"
6
7 static int test__thread_maps_share(struct test
8 {
9 struct machines machines;
10 struct machine *machine;
11
12 /* thread group */
13 struct thread *leader;
14 struct thread *t1, *t2, *t3;
15 struct maps *maps;
16
17 /* other process */
18 struct thread *other, *other_leader;
19 struct maps *other_maps;
20
21 /*
22 * This test create 2 processes abstra
23 * with several threads and checks the
24 * maintain maps info (struct maps).
25 *
26 * thread group (pid: 0, tids: 0, 1, 2
27 * other group (pid: 4, tids: 4, 5)
28 */
29
30 machines__init(&machines);
31 machine = &machines.host;
32
33 /* create process with 4 threads */
34 leader = machine__findnew_thread(machi
35 t1 = machine__findnew_thread(machi
36 t2 = machine__findnew_thread(machi
37 t3 = machine__findnew_thread(machi
38
39 /* and create 1 separated process, wit
40 other = machine__findnew_thread(machi
41
42 TEST_ASSERT_VAL("failed to create thre
43 leader && t1 && t2 &&
44
45 maps = thread__maps(leader);
46 TEST_ASSERT_EQUAL("wrong refcnt", refc
47
48 /* test the maps pointer is shared */
49 TEST_ASSERT_VAL("maps don't match", ma
50 TEST_ASSERT_VAL("maps don't match", ma
51 TEST_ASSERT_VAL("maps don't match", ma
52
53 /*
54 * Verify the other leader was created
55 * It should have shared maps with no
56 * refcnt.
57 */
58 other_leader = machine__find_thread(ma
59 TEST_ASSERT_VAL("failed to find other
60
61 /*
62 * Ok, now that all the rbtree related
63 * lets remove all of them from there
64 * refcounting tests.
65 */
66 machine__remove_thread(machine, leader
67 machine__remove_thread(machine, t1);
68 machine__remove_thread(machine, t2);
69 machine__remove_thread(machine, t3);
70 machine__remove_thread(machine, other)
71 machine__remove_thread(machine, other_
72
73 other_maps = thread__maps(other);
74 TEST_ASSERT_EQUAL("wrong refcnt", refc
75
76 TEST_ASSERT_VAL("maps don't match", ma
77
78 /* release thread group */
79 thread__put(t3);
80 TEST_ASSERT_EQUAL("wrong refcnt", refc
81
82 thread__put(t2);
83 TEST_ASSERT_EQUAL("wrong refcnt", refc
84
85 thread__put(t1);
86 TEST_ASSERT_EQUAL("wrong refcnt", refc
87
88 thread__put(leader);
89
90 /* release other group */
91 thread__put(other_leader);
92 TEST_ASSERT_EQUAL("wrong refcnt", refc
93
94 thread__put(other);
95
96 machines__exit(&machines);
97 return 0;
98 }
99
100 DEFINE_SUITE("Share thread maps", thread_maps_
101
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