Referencia del archivo sysmem.c

STM32CubeIDE System Memory calls file. Más...

#include <errno.h>
#include <stdint.h>

Funciones
void *	_sbrk (ptrdiff_t incr)
	_sbrk() allocates memory to the newlib heap and is used by malloc and others from the C library

Descripción detallada

STM32CubeIDE System Memory calls file.

Autor

Generated by STM32CubeIDE

       For more information about which C functions
       need which of these lowlevel functions
       please consult the newlib libc manual

Atención

Copyright (c) 2025 STMicroelectronics. All rights reserved.

This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

Documentación de funciones

_sbrk()

void * _sbrk

(

ptrdiff_t

incr

)

_sbrk() allocates memory to the newlib heap and is used by malloc and others from the C library

* ############################################################################
* #  .data  #  .bss  #       newlib heap       #          MSP stack          #
* #         #        #                         # Reserved by _Min_Stack_Size #
* ############################################################################
* ^-- RAM start      ^-- _end                             _estack, RAM end --^
* 

This implementation starts allocating at the '_end' linker symbol The '_Min_Stack_Size' linker symbol reserves a memory for the MSP stack The implementation considers '_estack' linker symbol to be RAM end NOTE: If the MSP stack, at any point during execution, grows larger than the reserved size, please increase the '_Min_Stack_Size'.

Parámetros

incr	Memory size

Devuelve

Pointer to allocated memory