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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
f089257d | 2 | |
0a970718 | 3 | #include "memory-util.h" |
617e7946 | 4 | #include "sparse-endian.h" |
cf0fbc49 | 5 | #include "unaligned.h" |
f089257d TG |
6 | |
7 | static uint8_t data[] = { | |
8 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
9 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, | |
10 | }; | |
11 | ||
7f034e98 | 12 | static void test_be(void) { |
f089257d TG |
13 | uint8_t scratch[16]; |
14 | ||
617e7946 TG |
15 | assert_se(unaligned_read_be16(&data[0]) == 0x0001); |
16 | assert_se(unaligned_read_be16(&data[1]) == 0x0102); | |
f089257d | 17 | |
617e7946 TG |
18 | assert_se(unaligned_read_be32(&data[0]) == 0x00010203); |
19 | assert_se(unaligned_read_be32(&data[1]) == 0x01020304); | |
20 | assert_se(unaligned_read_be32(&data[2]) == 0x02030405); | |
21 | assert_se(unaligned_read_be32(&data[3]) == 0x03040506); | |
f089257d | 22 | |
617e7946 TG |
23 | assert_se(unaligned_read_be64(&data[0]) == 0x0001020304050607); |
24 | assert_se(unaligned_read_be64(&data[1]) == 0x0102030405060708); | |
25 | assert_se(unaligned_read_be64(&data[2]) == 0x0203040506070809); | |
26 | assert_se(unaligned_read_be64(&data[3]) == 0x030405060708090a); | |
27 | assert_se(unaligned_read_be64(&data[4]) == 0x0405060708090a0b); | |
28 | assert_se(unaligned_read_be64(&data[5]) == 0x05060708090a0b0c); | |
29 | assert_se(unaligned_read_be64(&data[6]) == 0x060708090a0b0c0d); | |
30 | assert_se(unaligned_read_be64(&data[7]) == 0x0708090a0b0c0d0e); | |
f089257d TG |
31 | |
32 | zero(scratch); | |
617e7946 | 33 | unaligned_write_be16(&scratch[0], 0x0001); |
f089257d TG |
34 | assert_se(memcmp(&scratch[0], &data[0], sizeof(uint16_t)) == 0); |
35 | zero(scratch); | |
617e7946 | 36 | unaligned_write_be16(&scratch[1], 0x0102); |
f089257d TG |
37 | assert_se(memcmp(&scratch[1], &data[1], sizeof(uint16_t)) == 0); |
38 | ||
39 | zero(scratch); | |
617e7946 | 40 | unaligned_write_be32(&scratch[0], 0x00010203); |
f089257d TG |
41 | assert_se(memcmp(&scratch[0], &data[0], sizeof(uint32_t)) == 0); |
42 | zero(scratch); | |
617e7946 | 43 | unaligned_write_be32(&scratch[1], 0x01020304); |
f089257d TG |
44 | assert_se(memcmp(&scratch[1], &data[1], sizeof(uint32_t)) == 0); |
45 | zero(scratch); | |
617e7946 | 46 | unaligned_write_be32(&scratch[2], 0x02030405); |
f089257d TG |
47 | assert_se(memcmp(&scratch[2], &data[2], sizeof(uint32_t)) == 0); |
48 | zero(scratch); | |
617e7946 | 49 | unaligned_write_be32(&scratch[3], 0x03040506); |
f089257d TG |
50 | assert_se(memcmp(&scratch[3], &data[3], sizeof(uint32_t)) == 0); |
51 | ||
52 | zero(scratch); | |
617e7946 | 53 | unaligned_write_be64(&scratch[0], 0x0001020304050607); |
f089257d TG |
54 | assert_se(memcmp(&scratch[0], &data[0], sizeof(uint64_t)) == 0); |
55 | zero(scratch); | |
617e7946 | 56 | unaligned_write_be64(&scratch[1], 0x0102030405060708); |
f089257d TG |
57 | assert_se(memcmp(&scratch[1], &data[1], sizeof(uint64_t)) == 0); |
58 | zero(scratch); | |
617e7946 | 59 | unaligned_write_be64(&scratch[2], 0x0203040506070809); |
f089257d TG |
60 | assert_se(memcmp(&scratch[2], &data[2], sizeof(uint64_t)) == 0); |
61 | zero(scratch); | |
617e7946 | 62 | unaligned_write_be64(&scratch[3], 0x030405060708090a); |
f089257d TG |
63 | assert_se(memcmp(&scratch[3], &data[3], sizeof(uint64_t)) == 0); |
64 | zero(scratch); | |
617e7946 | 65 | unaligned_write_be64(&scratch[4], 0x0405060708090a0b); |
f089257d TG |
66 | assert_se(memcmp(&scratch[4], &data[4], sizeof(uint64_t)) == 0); |
67 | zero(scratch); | |
617e7946 | 68 | unaligned_write_be64(&scratch[5], 0x05060708090a0b0c); |
f089257d TG |
69 | assert_se(memcmp(&scratch[5], &data[5], sizeof(uint64_t)) == 0); |
70 | zero(scratch); | |
617e7946 | 71 | unaligned_write_be64(&scratch[6], 0x060708090a0b0c0d); |
f089257d TG |
72 | assert_se(memcmp(&scratch[6], &data[6], sizeof(uint64_t)) == 0); |
73 | zero(scratch); | |
617e7946 | 74 | unaligned_write_be64(&scratch[7], 0x0708090a0b0c0d0e); |
f089257d TG |
75 | assert_se(memcmp(&scratch[7], &data[7], sizeof(uint64_t)) == 0); |
76 | } | |
7f034e98 DM |
77 | |
78 | static void test_le(void) { | |
79 | uint8_t scratch[16]; | |
80 | ||
81 | assert_se(unaligned_read_le16(&data[0]) == 0x0100); | |
82 | assert_se(unaligned_read_le16(&data[1]) == 0x0201); | |
83 | ||
84 | assert_se(unaligned_read_le32(&data[0]) == 0x03020100); | |
85 | assert_se(unaligned_read_le32(&data[1]) == 0x04030201); | |
86 | assert_se(unaligned_read_le32(&data[2]) == 0x05040302); | |
87 | assert_se(unaligned_read_le32(&data[3]) == 0x06050403); | |
88 | ||
89 | assert_se(unaligned_read_le64(&data[0]) == 0x0706050403020100); | |
90 | assert_se(unaligned_read_le64(&data[1]) == 0x0807060504030201); | |
91 | assert_se(unaligned_read_le64(&data[2]) == 0x0908070605040302); | |
92 | assert_se(unaligned_read_le64(&data[3]) == 0x0a09080706050403); | |
93 | assert_se(unaligned_read_le64(&data[4]) == 0x0b0a090807060504); | |
94 | assert_se(unaligned_read_le64(&data[5]) == 0x0c0b0a0908070605); | |
95 | assert_se(unaligned_read_le64(&data[6]) == 0x0d0c0b0a09080706); | |
96 | assert_se(unaligned_read_le64(&data[7]) == 0x0e0d0c0b0a090807); | |
97 | ||
98 | zero(scratch); | |
99 | unaligned_write_le16(&scratch[0], 0x0100); | |
100 | assert_se(memcmp(&scratch[0], &data[0], sizeof(uint16_t)) == 0); | |
101 | zero(scratch); | |
102 | unaligned_write_le16(&scratch[1], 0x0201); | |
103 | assert_se(memcmp(&scratch[1], &data[1], sizeof(uint16_t)) == 0); | |
104 | ||
105 | zero(scratch); | |
106 | unaligned_write_le32(&scratch[0], 0x03020100); | |
107 | ||
108 | assert_se(memcmp(&scratch[0], &data[0], sizeof(uint32_t)) == 0); | |
109 | zero(scratch); | |
110 | unaligned_write_le32(&scratch[1], 0x04030201); | |
111 | assert_se(memcmp(&scratch[1], &data[1], sizeof(uint32_t)) == 0); | |
112 | zero(scratch); | |
113 | unaligned_write_le32(&scratch[2], 0x05040302); | |
114 | assert_se(memcmp(&scratch[2], &data[2], sizeof(uint32_t)) == 0); | |
115 | zero(scratch); | |
116 | unaligned_write_le32(&scratch[3], 0x06050403); | |
117 | assert_se(memcmp(&scratch[3], &data[3], sizeof(uint32_t)) == 0); | |
118 | ||
119 | zero(scratch); | |
120 | unaligned_write_le64(&scratch[0], 0x0706050403020100); | |
121 | assert_se(memcmp(&scratch[0], &data[0], sizeof(uint64_t)) == 0); | |
122 | zero(scratch); | |
123 | unaligned_write_le64(&scratch[1], 0x0807060504030201); | |
124 | assert_se(memcmp(&scratch[1], &data[1], sizeof(uint64_t)) == 0); | |
125 | zero(scratch); | |
126 | unaligned_write_le64(&scratch[2], 0x0908070605040302); | |
127 | assert_se(memcmp(&scratch[2], &data[2], sizeof(uint64_t)) == 0); | |
128 | zero(scratch); | |
129 | unaligned_write_le64(&scratch[3], 0x0a09080706050403); | |
130 | assert_se(memcmp(&scratch[3], &data[3], sizeof(uint64_t)) == 0); | |
131 | zero(scratch); | |
132 | unaligned_write_le64(&scratch[4], 0x0B0A090807060504); | |
133 | assert_se(memcmp(&scratch[4], &data[4], sizeof(uint64_t)) == 0); | |
134 | zero(scratch); | |
135 | unaligned_write_le64(&scratch[5], 0x0c0b0a0908070605); | |
136 | assert_se(memcmp(&scratch[5], &data[5], sizeof(uint64_t)) == 0); | |
137 | zero(scratch); | |
138 | unaligned_write_le64(&scratch[6], 0x0d0c0b0a09080706); | |
139 | assert_se(memcmp(&scratch[6], &data[6], sizeof(uint64_t)) == 0); | |
140 | zero(scratch); | |
141 | unaligned_write_le64(&scratch[7], 0x0e0d0c0b0a090807); | |
142 | assert_se(memcmp(&scratch[7], &data[7], sizeof(uint64_t)) == 0); | |
143 | } | |
144 | ||
c917a321 LP |
145 | static void test_ne(void) { |
146 | uint16_t x = 4711; | |
147 | uint32_t y = 123456; | |
148 | uint64_t z = 9876543210; | |
149 | ||
150 | /* Note that we don't bother actually testing alignment issues in this function, after all the _ne() functions | |
151 | * are just aliases for the _le() or _be() implementations, which we test extensively above. Hence, in this | |
152 | * function, just ensure that they map to the right version on the local architecture. */ | |
153 | ||
154 | assert_se(unaligned_read_ne16(&x) == 4711); | |
155 | assert_se(unaligned_read_ne32(&y) == 123456); | |
156 | assert_se(unaligned_read_ne64(&z) == 9876543210); | |
157 | ||
158 | unaligned_write_ne16(&x, 1); | |
159 | unaligned_write_ne32(&y, 2); | |
160 | unaligned_write_ne64(&z, 3); | |
161 | ||
162 | assert_se(x == 1); | |
163 | assert_se(y == 2); | |
164 | assert_se(z == 3); | |
165 | } | |
166 | ||
7f034e98 DM |
167 | int main(int argc, const char *argv[]) { |
168 | test_be(); | |
169 | test_le(); | |
c917a321 LP |
170 | test_ne(); |
171 | return 0; | |
7f034e98 | 172 | } |