127 lines
3 KiB
C
127 lines
3 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <sys/reent.h>
|
|
#include <malloc.h>
|
|
#include "esp_heap_caps.h"
|
|
|
|
|
|
/*
|
|
These contain the business logic for the malloc() and realloc() implementation. Because of heap tracing
|
|
wrapping reasons, we do not want these to be a public api, however, so they're not defined publicly.
|
|
*/
|
|
extern void *heap_caps_malloc_default( size_t size );
|
|
extern void *heap_caps_realloc_default( void *ptr, size_t size );
|
|
|
|
|
|
void* malloc(size_t size)
|
|
{
|
|
return heap_caps_malloc_default(size);
|
|
}
|
|
|
|
void* calloc(size_t n, size_t size)
|
|
{
|
|
return _calloc_r(_REENT, n, size);
|
|
}
|
|
|
|
void* realloc(void* ptr, size_t size)
|
|
{
|
|
return heap_caps_realloc_default(ptr, size);
|
|
}
|
|
|
|
void free(void *ptr)
|
|
{
|
|
heap_caps_free(ptr);
|
|
}
|
|
|
|
void* _malloc_r(struct _reent *r, size_t size)
|
|
{
|
|
return heap_caps_malloc_default(size);
|
|
}
|
|
|
|
void _free_r(struct _reent *r, void* ptr)
|
|
{
|
|
heap_caps_free(ptr);
|
|
}
|
|
|
|
void* _realloc_r(struct _reent *r, void* ptr, size_t size)
|
|
{
|
|
return heap_caps_realloc_default( ptr, size );
|
|
}
|
|
|
|
void* _calloc_r(struct _reent *r, size_t nmemb, size_t size)
|
|
{
|
|
void *result;
|
|
size_t size_bytes;
|
|
if (__builtin_mul_overflow(nmemb, size, &size_bytes)) {
|
|
return NULL;
|
|
}
|
|
|
|
result = heap_caps_malloc_default(size_bytes);
|
|
if (result != NULL) {
|
|
bzero(result, size_bytes);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/* No-op function, used to force linking this file,
|
|
instead of the heap implementation from newlib.
|
|
*/
|
|
void newlib_include_heap_impl()
|
|
{
|
|
}
|
|
|
|
/* The following functions are implemented by newlib's heap allocator,
|
|
but aren't available in the heap component.
|
|
Define them as non-functional stubs here, so that the application
|
|
can not cause the newlib heap implementation to be linked in
|
|
*/
|
|
void* memalign(size_t alignment, size_t n)
|
|
{
|
|
extern void memalign_function_was_linked_but_unsupported_in_esp_idf(void);
|
|
memalign_function_was_linked_but_unsupported_in_esp_idf();
|
|
return NULL;
|
|
}
|
|
|
|
int malloc_trim(size_t pad)
|
|
{
|
|
return 0; // indicates failure
|
|
}
|
|
|
|
size_t malloc_usable_size(void* p)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void malloc_stats()
|
|
{
|
|
}
|
|
|
|
int mallopt(int parameter_number, int parameter_value)
|
|
{
|
|
return 0; // indicates failure
|
|
}
|
|
|
|
struct mallinfo mallinfo()
|
|
{
|
|
struct mallinfo dummy = {0};
|
|
return dummy;
|
|
}
|
|
|
|
void* valloc(size_t n) __attribute__((alias("malloc")));
|
|
void* pvalloc(size_t n) __attribute__((alias("malloc")));
|
|
void cfree(void* p) __attribute__((alias("free")));
|