2 * Copyright (C) 2013-2019 Free Software Foundation, Inc.
4 * This file is part of GNU lightning.
6 * GNU lightning is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published
8 * by the Free Software Foundation; either version 3, or (at your option)
11 * GNU lightning is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
14 * License for more details.
17 * Paulo Cesar Pereira de Andrade
20 #include <lightning.h>
21 #include <lightning/jit_private.h>
25 # include <sys/mman.h>
31 static void *jit_default_alloc_func(size_t);
32 static void *jit_default_realloc_func(void*, size_t);
33 static void jit_default_free_func(void *);
38 static jit_alloc_func_ptr jit_alloc_ptr = jit_default_alloc_func;
39 static jit_realloc_func_ptr jit_realloc_ptr = jit_default_realloc_func;
40 static jit_free_func_ptr jit_free_ptr = jit_default_free_func;
46 jit_memcpy(jit_pointer_t dst, const void * src, jit_word_t size)
49 return (memcpy(dst, src, size));
54 jit_memmove(jit_pointer_t dst, const void *src , jit_word_t size)
57 return (memmove(dst, src, size));
62 jit_set_memory_functions(jit_alloc_func_ptr alloc_ptr,
63 jit_realloc_func_ptr realloc_ptr,
64 jit_free_func_ptr free_ptr)
66 if (alloc_ptr == NULL)
67 alloc_ptr = jit_default_alloc_func;
68 if (realloc_ptr == NULL)
69 realloc_ptr = jit_default_realloc_func;
71 free_ptr = jit_default_free_func;
72 jit_alloc_ptr = alloc_ptr;
73 jit_realloc_ptr = realloc_ptr;
74 jit_free_ptr = free_ptr;
78 jit_get_memory_functions(jit_alloc_func_ptr *alloc_ptr,
79 jit_realloc_func_ptr *realloc_ptr,
80 jit_free_func_ptr *free_ptr)
82 *alloc_ptr = jit_alloc_ptr;
83 *realloc_ptr = jit_realloc_ptr;
84 *free_ptr = jit_free_ptr;
88 jit_alloc(jit_pointer_t *ptr, jit_word_t size)
90 *ptr = (*jit_alloc_ptr)(size);
91 memset(*ptr, 0, size);
95 jit_realloc(jit_pointer_t *ptr, jit_word_t old_size, jit_word_t new_size)
97 *ptr = (*jit_realloc_ptr)(*ptr, new_size);
98 if (old_size < new_size)
99 memset((jit_int8_t*)*ptr + old_size, 0, new_size - old_size);
103 jit_free(jit_pointer_t *ptr)
106 (*jit_free_ptr)(*ptr);
112 jit_default_alloc_func(size_t size)
114 return (malloc(size));
118 jit_default_realloc_func(void *ptr, size_t size)
120 return (realloc(ptr, size));
124 jit_default_free_func(void *ptr)