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17e2377a PB |
1 | /* |
2 | * malloc-like functions for system emulation. | |
3 | * | |
4 | * Copyright (c) 2006 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "qemu-common.h" | |
8a1d02ab AL |
25 | #include <stdlib.h> |
26 | ||
27 | static void *oom_check(void *ptr) | |
28 | { | |
29 | if (ptr == NULL) | |
62a3fe29 | 30 | abort(); |
8a1d02ab AL |
31 | return ptr; |
32 | } | |
17e2377a PB |
33 | |
34 | void *get_mmap_addr(unsigned long size) | |
35 | { | |
36 | return NULL; | |
37 | } | |
38 | ||
39 | void qemu_free(void *ptr) | |
40 | { | |
41 | free(ptr); | |
42 | } | |
43 | ||
44 | void *qemu_malloc(size_t size) | |
45 | { | |
8a1d02ab | 46 | return oom_check(malloc(size)); |
17e2377a PB |
47 | } |
48 | ||
2137b4cc TS |
49 | void *qemu_realloc(void *ptr, size_t size) |
50 | { | |
8a1d02ab | 51 | return oom_check(realloc(ptr, size)); |
2137b4cc TS |
52 | } |
53 | ||
17e2377a PB |
54 | void *qemu_mallocz(size_t size) |
55 | { | |
56 | void *ptr; | |
57 | ptr = qemu_malloc(size); | |
17e2377a PB |
58 | memset(ptr, 0, size); |
59 | return ptr; | |
60 | } | |
61 | ||
62 | char *qemu_strdup(const char *str) | |
63 | { | |
64 | char *ptr; | |
363a37d5 BS |
65 | size_t len = strlen(str); |
66 | ptr = qemu_malloc(len + 1); | |
ac4b0d0c | 67 | memcpy(ptr, str, len + 1); |
17e2377a PB |
68 | return ptr; |
69 | } | |
ac4b0d0c AZ |
70 | |
71 | char *qemu_strndup(const char *str, size_t size) | |
72 | { | |
73 | const char *end = memchr(str, 0, size); | |
74 | char *new; | |
75 | ||
76 | if (end) | |
77 | size = end - str; | |
78 | ||
79 | new = qemu_malloc(size + 1); | |
80 | new[size] = 0; | |
81 | ||
82 | return memcpy(new, str, size); | |
83 | } |