QMP: Drop old input object checking
[qemu.git] / qemu-malloc.c
blob36b0b3641ee56a13a03f5e0479f945a9951e8843
1 /*
2 * malloc-like functions for system emulation.
4 * Copyright (c) 2006 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 #include "qemu-common.h"
25 #include <stdlib.h>
27 static void *oom_check(void *ptr)
29 if (ptr == NULL) {
30 abort();
32 return ptr;
35 void qemu_free(void *ptr)
37 free(ptr);
40 static int allow_zero_malloc(void)
42 #if defined(CONFIG_ZERO_MALLOC)
43 return 1;
44 #else
45 return 0;
46 #endif
49 void *qemu_malloc(size_t size)
51 if (!size && !allow_zero_malloc()) {
52 abort();
54 return oom_check(malloc(size ? size : 1));
57 void *qemu_realloc(void *ptr, size_t size)
59 if (!size && !allow_zero_malloc()) {
60 abort();
62 return oom_check(realloc(ptr, size ? size : 1));
65 void *qemu_mallocz(size_t size)
67 if (!size && !allow_zero_malloc()) {
68 abort();
70 return oom_check(calloc(1, size ? size : 1));
73 char *qemu_strdup(const char *str)
75 char *ptr;
76 size_t len = strlen(str);
77 ptr = qemu_malloc(len + 1);
78 memcpy(ptr, str, len + 1);
79 return ptr;
82 char *qemu_strndup(const char *str, size_t size)
84 const char *end = memchr(str, 0, size);
85 char *new;
87 if (end) {
88 size = end - str;
91 new = qemu_malloc(size + 1);
92 new[size] = 0;
94 return memcpy(new, str, size);