1 /* $NetBSD: t___sync_lock.c,v 1.1 2019/02/26 10:01:41 isaki Exp $ */
2
3 /*
4 * Copyright (C) 2019 Tetsuya Isaki. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __RCSID("$NetBSD: t___sync_lock.c,v 1.1 2019/02/26 10:01:41 isaki Exp $");
30
31 #include <atf-c.h>
32 #include <inttypes.h>
33 #include <machine/types.h> // for __HAVE_ATOMIC64_OPS
34
35 /*
36 * These tests don't examine the atomicity.
37 */
38
39 /* XXX
40 * Depending on a combination of arch and compiler, __sync_* is
41 * implemented as compiler's builtin function. In that case, even
42 * if libc exports the function symbol, it is not used. As a result
43 * this tests will examine compiler's builtin functions.
44 * It's better to run only when target is actually in libc.
45 */
46
47 #define OLDVAL (0x1122334455667788UL)
48 #define NEWVAL (0x8090a0b0c0d0e0f0UL)
49
50 #define atf_sync_tas(NAME, TYPE, FMT) \
51 ATF_TC(NAME); \
52 ATF_TC_HEAD(NAME, tc) \
53 { \
54 atf_tc_set_md_var(tc, "descr", #NAME); \
55 } \
56 ATF_TC_BODY(NAME, tc) \
57 { \
58 volatile TYPE val; \
59 TYPE newval; \
60 TYPE expval; \
61 TYPE expres; \
62 TYPE res; \
63 val = (TYPE)OLDVAL; \
64 newval = (TYPE)NEWVAL; \
65 expval = (TYPE)NEWVAL; \
66 expres = (TYPE)OLDVAL; \
67 res = NAME(&val, newval); \
68 ATF_REQUIRE_MSG(val == expval, \
69 "val expects 0x%" FMT " but 0x%" FMT, expval, val); \
70 ATF_REQUIRE_MSG(res == expres, \
71 "res expects 0x%" FMT " but 0x%" FMT, expres, res); \
72 }
73
74 atf_sync_tas(__sync_lock_test_and_set_1, uint8_t, PRIx8);
75 atf_sync_tas(__sync_lock_test_and_set_2, uint16_t, PRIx16);
76 atf_sync_tas(__sync_lock_test_and_set_4, uint32_t, PRIx32);
77 #ifdef __HAVE_ATOMIC64_OPS
78 atf_sync_tas(__sync_lock_test_and_set_8, uint64_t, PRIx64);
79 #endif
80
81 #define atf_sync_rel(NAME, TYPE, FMT) \
82 ATF_TC(NAME); \
83 ATF_TC_HEAD(NAME, tc) \
84 { \
85 atf_tc_set_md_var(tc, "descr", #NAME); \
86 } \
87 ATF_TC_BODY(NAME, tc) \
88 { \
89 volatile TYPE val; \
90 TYPE expval; \
91 val = (TYPE)OLDVAL; \
92 expval = (TYPE)0; \
93 NAME(&val); \
94 ATF_REQUIRE_MSG(val == expval, \
95 "val expects 0x%" FMT " but 0x%" FMT, expval, val); \
96 }
97
98 atf_sync_rel(__sync_lock_release_1, uint8_t, PRIx8);
99 atf_sync_rel(__sync_lock_release_2, uint16_t, PRIx16);
100 atf_sync_rel(__sync_lock_release_4, uint32_t, PRIx32);
101 #ifdef __HAVE_ATOMIC64_OPS
102 atf_sync_rel(__sync_lock_release_8, uint64_t, PRIx64);
103 #endif
104
105 /*
106 * __sync_synchronize(): This is just a link-time test.
107 */
108 ATF_TC(__sync_synchronize);
ATF_TC_HEAD(__sync_synchronize,tc)109 ATF_TC_HEAD(__sync_synchronize, tc)
110 {
111 atf_tc_set_md_var(tc, "descr", "__sync_synchronize");
112 }
ATF_TC_BODY(__sync_synchronize,tc)113 ATF_TC_BODY(__sync_synchronize, tc)
114 {
115 __sync_synchronize();
116 }
117
ATF_TP_ADD_TCS(tp)118 ATF_TP_ADD_TCS(tp)
119 {
120 ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_1);
121 ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_2);
122 ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_4);
123 #ifdef __HAVE_ATOMIC64_OPS
124 ATF_TP_ADD_TC(tp, __sync_lock_test_and_set_8);
125 #endif
126
127 ATF_TP_ADD_TC(tp, __sync_lock_release_1);
128 ATF_TP_ADD_TC(tp, __sync_lock_release_2);
129 ATF_TP_ADD_TC(tp, __sync_lock_release_4);
130 #ifdef __HAVE_ATOMIC64_OPS
131 ATF_TP_ADD_TC(tp, __sync_lock_release_8);
132 #endif
133
134 ATF_TP_ADD_TC(tp, __sync_synchronize);
135
136 return atf_no_error();
137 }
138