wut/crt/memory.c
James Benton fc3bfa64ed Implement __wrap_malloc_usable_size.
This is just MEMGetSizeForMBlockExpHeap.
2016-07-23 11:23:32 +01:00

110 lines
2.4 KiB
C

/****************************************************************************
* Copyright (C) 2015 Dimok
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include <malloc.h>
#include <string.h>
#include <coreinit/baseheap.h>
#include <coreinit/expandedheap.h>
void *
__wrap_malloc(size_t size)
{
return MEMAllocFromExpHeapEx(MEMGetBaseHeapHandle(MEM_BASE_HEAP_MEM2), size, 4);
}
void *
__wrap_memalign(size_t align, size_t size)
{
if (align < 4) {
align = 4;
}
return MEMAllocFromExpHeapEx(MEMGetBaseHeapHandle(MEM_BASE_HEAP_MEM2), size, align);
}
void
__wrap_free(void *p)
{
if (p) {
MEMFreeToExpHeap(MEMGetBaseHeapHandle(MEM_BASE_HEAP_MEM2), p);
}
}
void *
__wrap_calloc(size_t n, size_t size)
{
void *p = __wrap_malloc(n * size);
if (p) {
memset(p, 0, n * size);
}
return p;
}
size_t
__wrap_malloc_usable_size(void *p)
{
return MEMGetSizeForMBlockExpHeap(p);
}
void *
__wrap_realloc(void *p, size_t size)
{
void *new_ptr = __wrap_malloc(size);
if (new_ptr) {
memcpy(new_ptr, p, __wrap_malloc_usable_size(p) < size ? __wrap_malloc_usable_size(p) : size);
__wrap_free(p);
}
return new_ptr;
}
void *
__wrap__malloc_r(struct _reent *r, size_t size)
{
return __wrap_malloc(size);
}
void *
__wrap__calloc_r(struct _reent *r, size_t n, size_t size)
{
return __wrap_calloc(n, size);
}
void *
__wrap__memalign_r(struct _reent *r, size_t align, size_t size)
{
return __wrap_memalign(align, size);
}
void __wrap__free_r(struct _reent *r, void *p)
{
__wrap_free(p);
}
size_t __wrap__malloc_usable_size_r(struct _reent *r, void *p)
{
return __wrap_malloc_usable_size(p);
}
void *__wrap__realloc_r(struct _reent *r, void *p, size_t size)
{
return __wrap_realloc(p, size);
}