1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
#include "test/jemalloc_test.h"
TEST_BEGIN(test_grow_and_shrink)
{
void *p, *q;
size_t tsz;
#define NCYCLES 3
unsigned i, j;
#define NSZS 2500
size_t szs[NSZS];
#define MAXSZ ZU(12 * 1024 * 1024)
p = mallocx(1, 0);
assert_ptr_not_null(p, "Unexpected mallocx() error");
szs[0] = sallocx(p, 0);
for (i = 0; i < NCYCLES; i++) {
for (j = 1; j < NSZS && szs[j-1] < MAXSZ; j++) {
q = rallocx(p, szs[j-1]+1, 0);
assert_ptr_not_null(q,
"Unexpected rallocx() error for size=%zu-->%zu",
szs[j-1], szs[j-1]+1);
szs[j] = sallocx(q, 0);
assert_zu_ne(szs[j], szs[j-1]+1,
"Expected size to be at least: %zu", szs[j-1]+1);
p = q;
}
for (j--; j > 0; j--) {
q = rallocx(p, szs[j-1], 0);
assert_ptr_not_null(q,
"Unexpected rallocx() error for size=%zu-->%zu",
szs[j], szs[j-1]);
tsz = sallocx(q, 0);
assert_zu_eq(tsz, szs[j-1],
"Expected size=%zu, got size=%zu", szs[j-1], tsz);
p = q;
}
}
dallocx(p, 0);
#undef MAXSZ
#undef NSZS
#undef NCYCLES
}
TEST_END
static bool
validate_fill(const void *p, uint8_t c, size_t offset, size_t len)
{
bool ret = false;
const uint8_t *buf = (const uint8_t *)p;
size_t i;
for (i = 0; i < len; i++) {
uint8_t b = buf[offset+i];
if (b != c) {
test_fail("Allocation at %p (len=%zu) contains %#x "
"rather than %#x at offset %zu", p, len, b, c,
offset+i);
ret = true;
}
}
return (ret);
}
TEST_BEGIN(test_zero)
{
void *p, *q;
size_t psz, qsz, i, j;
size_t start_sizes[] = {1, 3*1024, 63*1024, 4095*1024};
#define FILL_BYTE 0xaaU
#define RANGE 2048
for (i = 0; i < sizeof(start_sizes)/sizeof(size_t); i++) {
size_t start_size = start_sizes[i];
p = mallocx(start_size, MALLOCX_ZERO);
assert_ptr_not_null(p, "Unexpected mallocx() error");
psz = sallocx(p, 0);
assert_false(validate_fill(p, 0, 0, psz),
"Expected zeroed memory");
memset(p, FILL_BYTE, psz);
assert_false(validate_fill(p, FILL_BYTE, 0, psz),
"Expected filled memory");
for (j = 1; j < RANGE; j++) {
q = rallocx(p, start_size+j, MALLOCX_ZERO);
assert_ptr_not_null(q, "Unexpected rallocx() error");
qsz = sallocx(q, 0);
if (q != p || qsz != psz) {
assert_false(validate_fill(q, FILL_BYTE, 0,
psz), "Expected filled memory");
assert_false(validate_fill(q, 0, psz, qsz-psz),
"Expected zeroed memory");
}
if (psz != qsz) {
memset((void *)((uintptr_t)q+psz), FILL_BYTE,
qsz-psz);
psz = qsz;
}
p = q;
}
assert_false(validate_fill(p, FILL_BYTE, 0, psz),
"Expected filled memory");
dallocx(p, 0);
}
#undef FILL_BYTE
}
TEST_END
TEST_BEGIN(test_align)
{
void *p, *q;
size_t align;
#define MAX_ALIGN (ZU(1) << 25)
align = ZU(1);
p = mallocx(1, MALLOCX_ALIGN(align));
assert_ptr_not_null(p, "Unexpected mallocx() error");
for (align <<= 1; align <= MAX_ALIGN; align <<= 1) {
q = rallocx(p, 1, MALLOCX_ALIGN(align));
assert_ptr_not_null(q,
"Unexpected rallocx() error for align=%zu", align);
assert_ptr_null(
(void *)((uintptr_t)q & (align-1)),
"%p inadequately aligned for align=%zu",
q, align);
p = q;
}
dallocx(p, 0);
#undef MAX_ALIGN
}
TEST_END
TEST_BEGIN(test_lg_align_and_zero)
{
void *p, *q;
size_t lg_align, sz;
#define MAX_LG_ALIGN 25
#define MAX_VALIDATE (ZU(1) << 22)
lg_align = ZU(0);
p = mallocx(1, MALLOCX_LG_ALIGN(lg_align)|MALLOCX_ZERO);
assert_ptr_not_null(p, "Unexpected mallocx() error");
for (lg_align++; lg_align <= MAX_LG_ALIGN; lg_align++) {
q = rallocx(p, 1, MALLOCX_LG_ALIGN(lg_align)|MALLOCX_ZERO);
assert_ptr_not_null(q,
"Unexpected rallocx() error for lg_align=%zu", lg_align);
assert_ptr_null(
(void *)((uintptr_t)q & ((ZU(1) << lg_align)-1)),
"%p inadequately aligned for lg_align=%zu",
q, lg_align);
sz = sallocx(q, 0);
if ((sz << 1) <= MAX_VALIDATE) {
assert_false(validate_fill(q, 0, 0, sz),
"Expected zeroed memory");
} else {
assert_false(validate_fill(q, 0, 0, MAX_VALIDATE),
"Expected zeroed memory");
assert_false(validate_fill(
(void *)((uintptr_t)q+sz-MAX_VALIDATE),
0, 0, MAX_VALIDATE), "Expected zeroed memory");
}
p = q;
}
dallocx(p, 0);
#undef MAX_VALIDATE
#undef MAX_LG_ALIGN
}
TEST_END
int
main(void)
{
return (test(
test_grow_and_shrink,
test_zero,
test_align,
test_lg_align_and_zero));
}
|
