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// SPDX-License-Identifier: GPL-2.0-only
/*
* tlsf wrapper for barebox
*
* Copyright (C) 2011 Antony Pavlov <antonynpavlov@gmail.com>
*/
#include <malloc.h>
#include <string.h>
#include <stdio.h>
#include <module.h>
#include <tlsf.h>
extern tlsf_t tlsf_mem_pool;
void *malloc(size_t bytes)
{
void *mem;
/*
* tlsf_malloc returns NULL for zero bytes, we instead want
* to have a valid pointer.
*/
if (!bytes)
bytes = 1;
mem = tlsf_malloc(tlsf_mem_pool, bytes);
if (!mem)
errno = ENOMEM;
return mem;
}
EXPORT_SYMBOL(malloc);
void free(void *mem)
{
tlsf_free(tlsf_mem_pool, mem);
}
EXPORT_SYMBOL(free);
void *realloc(void *oldmem, size_t bytes)
{
void *mem = tlsf_realloc(tlsf_mem_pool, oldmem, bytes);
if (!mem)
errno = ENOMEM;
return mem;
}
EXPORT_SYMBOL(realloc);
void *memalign(size_t alignment, size_t bytes)
{
void *mem = tlsf_memalign(tlsf_mem_pool, alignment, bytes);
if (!mem)
errno = ENOMEM;
return mem;
}
EXPORT_SYMBOL(memalign);
struct malloc_stats {
size_t free;
size_t used;
};
static void malloc_walker(void* ptr, size_t size, int used, void *user)
{
struct malloc_stats *s = user;
if (used)
s->used += size;
else
s->free += size;
}
void malloc_stats(void)
{
struct malloc_stats s;
s.used = 0;
s.free = 0;
tlsf_walk_pool(tlsf_get_pool(tlsf_mem_pool), malloc_walker, &s);
printf("used: %zu\nfree: %zu\n", s.used, s.free);
}
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