wut/libraries/wutnewlib/wut_malloc.c
James Benton 1471ea4338 Change wutnewlib to implement malloc family of functions.
This allows us to forward them straight to default heap functions, this
is better than having to allocate a fixed heap for sbrk as it allows
people to better mix usage malloc & default heap functions.
2018-06-13 18:38:53 +01:00

89 lines
1.5 KiB
C

#include <coreinit/memexpheap.h>
#include <coreinit/memdefaultheap.h>
#include <coreinit/memorymap.h>
#include <malloc.h>
#include <string.h>
void *
_malloc_r(struct _reent *r, size_t size)
{
return MEMAllocFromDefaultHeap(size);
}
void
_free_r(struct _reent *r, void *ptr)
{
MEMFreeToDefaultHeap(ptr);
}
void *
_realloc_r(struct _reent *r, void *ptr, size_t size)
{
void *new_ptr = _malloc_r(r, size);
if (!ptr || !new_ptr) {
return new_ptr;
}
memcpy(new_ptr, ptr, MEMGetSizeForMBlockExpHeap(ptr));
_free_r(r, ptr);
return new_ptr;
}
void *
_calloc_r(struct _reent *r, size_t num, size_t size)
{
void *ptr = _malloc_r(r, num * size);
if (ptr) {
memset(ptr, 0, num * size);
}
return ptr;
}
void *
_memalign_r(struct _reent *r, size_t align, size_t size)
{
return MEMAllocFromDefaultHeapEx(size, align);
}
struct mallinfo _mallinfo_r(struct _reent *r)
{
struct mallinfo info = { 0 };
return info;
}
void
_malloc_stats_r(struct _reent *r)
{
}
int
_mallopt_r(struct _reent *r, int param, int value)
{
return 0;
}
size_t
_malloc_usable_size_r(struct _reent *r, void *ptr)
{
return MEMGetSizeForMBlockExpHeap(ptr);
}
void *
_valloc_r(struct _reent *r, size_t size)
{
return _memalign_r(r, OS_PAGE_SIZE, size);
}
void *
_pvalloc_r(struct _reent *r, size_t size)
{
return _memalign_r(r, OS_PAGE_SIZE, (size + (OS_PAGE_SIZE - 1)) & ~(OS_PAGE_SIZE - 1));
}
int
_malloc_trim_r(struct _reent *r, size_t pad)
{
return 0;
}