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
|
/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2017 Jason King
*/
#include <sys/debug.h>
#include <stdlib.h>
#include <string.h>
#include "demangle-sys.h"
#include "demangle_int.h"
void *
zalloc(sysdem_ops_t *ops, size_t len)
{
void *p = ops->alloc(len);
if (p != NULL)
(void) memset(p, 0, len);
#ifdef DEBUG
/*
* In normal operation, we should never exhaust memory. Either
* something's wrong, or the system is so hosed that aborting
* shouldn't hurt anything, and it gives us a more useful stack
* trace.
*/
if (p == NULL)
abort();
#endif
return (p);
}
void
xfree(sysdem_ops_t *ops, void *p, size_t len)
{
if (p == NULL || len == 0)
return;
ops->free(p, len);
}
void *
xrealloc(sysdem_ops_t *ops, void *p, size_t oldsz, size_t newsz)
{
if (newsz == oldsz)
return (p);
VERIFY3U(newsz, >, oldsz);
void *temp = zalloc(ops, newsz);
if (temp == NULL)
return (NULL);
if (oldsz > 0) {
(void) memcpy(temp, p, oldsz);
xfree(ops, p, oldsz);
}
return (temp);
}
/*ARGSUSED*/
static void
def_free(void *p, size_t len)
{
free(p);
}
static sysdem_ops_t i_sysdem_ops_default = {
.alloc = malloc,
.free = def_free
};
sysdem_ops_t *sysdem_ops_default = &i_sysdem_ops_default;
|
