diff options
Diffstat (limited to 'FreeRTOS/Demo/CORTEX_MPU_M3_NUCLEO_L152RE_GCC/Projects/GCC/Startup/sysmem.c')
| -rw-r--r-- | FreeRTOS/Demo/CORTEX_MPU_M3_NUCLEO_L152RE_GCC/Projects/GCC/Startup/sysmem.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/FreeRTOS/Demo/CORTEX_MPU_M3_NUCLEO_L152RE_GCC/Projects/GCC/Startup/sysmem.c b/FreeRTOS/Demo/CORTEX_MPU_M3_NUCLEO_L152RE_GCC/Projects/GCC/Startup/sysmem.c new file mode 100644 index 000000000..e5e1bc2d9 --- /dev/null +++ b/FreeRTOS/Demo/CORTEX_MPU_M3_NUCLEO_L152RE_GCC/Projects/GCC/Startup/sysmem.c @@ -0,0 +1,83 @@ +/** +***************************************************************************** +** +** File : sysmem.c +** +** Author : Auto-generated by STM32CubeIDE +** +** Abstract : STM32CubeIDE Minimal System Memory calls file +** +** For more information about which c-functions +** need which of these lowlevel functions +** please consult the Newlib libc-manual +** +** Environment : STM32CubeIDE MCU +** +** Distribution: The file is distributed as is, without any warranty +** of any kind. +** +***************************************************************************** +** +** <h2><center>© COPYRIGHT(c) 2018 STMicroelectronics</center></h2> +** +** Redistribution and use in source and binary forms, with or without modification, +** are permitted provided that the following conditions are met: +** 1. Redistributions of source code must retain the above copyright notice, +** this list of conditions and the following disclaimer. +** 2. Redistributions in binary form must reproduce the above copyright notice, +** this list of conditions and the following disclaimer in the documentation +** and/or other materials provided with the distribution. +** 3. Neither the name of STMicroelectronics nor the names of its contributors +** may be used to endorse or promote products derived from this software +** without specific prior written permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +** +** +***************************************************************************** +*/ + +/* Includes */ +#include <errno.h> +#include <stdio.h> + +/* Variables */ +extern int errno; +register char * stack_ptr asm("sp"); + +/* Functions */ + +/** + _sbrk + Increase program data space. Malloc and related functions depend on this +**/ +caddr_t _sbrk(int incr) +{ + extern char end asm("end"); + static char *heap_end; + char *prev_heap_end; + + if (heap_end == 0) + heap_end = &end; + + prev_heap_end = heap_end; + if (heap_end + incr > stack_ptr) + { + errno = ENOMEM; + return (caddr_t) -1; + } + + heap_end += incr; + + return (caddr_t) prev_heap_end; +} + |