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new.cpp
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new.cpp
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/*
Copyright (c) 2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include "rtos.h"
#include <errno.h>
#include <sys/stat.h>
#include <malloc.h>
void *operator new(size_t size) {
return rtos_malloc(size);
}
void *operator new[](size_t size) {
return rtos_malloc(size);
}
void operator delete(void * ptr) {
rtos_free(ptr);
}
void operator delete[](void * ptr) {
rtos_free(ptr);
}
void operator delete(void * ptr, unsigned int) {
rtos_free(ptr);
}
void operator delete[](void * ptr, unsigned int) {
rtos_free(ptr);
}
extern "C"
{
// defined in linker script
extern unsigned char __HeapBase[];
extern unsigned char __HeapLimit[];
static unsigned char *sbrk_heap_top = __HeapBase;
__attribute__((used))
caddr_t _sbrk( int incr )
{
unsigned char *prev_heap;
if ( sbrk_heap_top + incr > __HeapLimit )
{
/* Out of dynamic memory heap space */
errno = ENOMEM;
return (caddr_t) -1;
}
prev_heap = sbrk_heap_top;
sbrk_heap_top += incr;
return (caddr_t) prev_heap;
}
void __malloc_lock(struct _reent *ptr)
{
(void) ptr;
vTaskSuspendAll();
}
void __malloc_unlock(struct _reent *ptr)
{
(void) ptr;
xTaskResumeAll();
}
}