4 #include <linux/types.h>
13 static char *test_file(int size)
15 static char buf_templ[] = "/tmp/test-XXXXXX";
16 char *templ = buf_templ;
22 perror("mkstemp failed");
32 for (i = 0; i < size; i++)
33 buf[i] = (unsigned char) ((int) i % 10);
35 if (size != write(fd, buf, size))
43 #define TEST_FILE_SIZE (DSO__DATA_CACHE_SIZE * 20)
45 struct test_data_offset {
51 struct test_data_offset offsets[] = {
52 /* Fill first cache page. */
55 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
58 /* Read first cache page. */
61 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
64 /* Fill cache boundary pages. */
66 .offset = DSO__DATA_CACHE_SIZE - DSO__DATA_CACHE_SIZE % 10,
67 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
70 /* Read cache boundary pages. */
72 .offset = DSO__DATA_CACHE_SIZE - DSO__DATA_CACHE_SIZE % 10,
73 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
76 /* Fill final cache page. */
78 .offset = TEST_FILE_SIZE - 10,
79 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
82 /* Read final cache page. */
84 .offset = TEST_FILE_SIZE - 10,
85 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
88 /* Read final cache page. */
90 .offset = TEST_FILE_SIZE - 3,
91 .data = { 7, 8, 9, 0, 0, 0, 0, 0, 0, 0 },
96 int test__dso_data(void)
98 struct machine machine;
100 char *file = test_file(TEST_FILE_SIZE);
103 TEST_ASSERT_VAL("No test file", file);
105 memset(&machine, 0, sizeof(machine));
107 dso = dso__new((const char *)file);
109 /* Basic 10 bytes tests. */
110 for (i = 0; i < ARRAY_SIZE(offsets); i++) {
111 struct test_data_offset *data = &offsets[i];
116 size = dso__data_read_offset(dso, &machine, data->offset,
119 TEST_ASSERT_VAL("Wrong size", size == data->size);
120 TEST_ASSERT_VAL("Wrong data", !memcmp(buf, data->data, 10));
123 /* Read cross multiple cache pages. */
129 buf = malloc(TEST_FILE_SIZE);
130 TEST_ASSERT_VAL("ENOMEM\n", buf);
132 /* First iteration to fill caches, second one to read them. */
133 for (c = 0; c < 2; c++) {
134 memset(buf, 0, TEST_FILE_SIZE);
135 size = dso__data_read_offset(dso, &machine, 10,
136 buf, TEST_FILE_SIZE);
138 TEST_ASSERT_VAL("Wrong size",
139 size == (TEST_FILE_SIZE - 10));
141 for (i = 0; i < (size_t)size; i++)
142 TEST_ASSERT_VAL("Wrong data",