mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/TARGET_STM/TARGET_STM32F0/TARGET_NUCLEO_F072RB/device/TOOLCHAIN_GCC_ARM/STM32F0xxx_retarget.c
- Committer:
- AnnaBridge
- Date:
- 2019-02-20
- Revision:
- 189:f392fc9709a3
- Parent:
- 188:bcfe06ba3d64
File content as of revision 189:f392fc9709a3:
/* mbed Microcontroller Library * Copyright (c) 2018, STMicroelectronics * All rights reserved. * * 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. */ #include <errno.h> #include "stm32f0xx.h" extern uint32_t __mbed_sbrk_start; extern uint32_t __mbed_krbs_start; /* Support heap with two-region model * * The default implementation of _sbrk() (in mbed_retarget.cpp) for GCC_ARM requires one-region * model (heap and stack share one region), which doesn't fit two-region model (heap and stack * are two distinct regions) * Hence, override _sbrk() here to support heap with two-region model. */ void *_sbrk(int incr) { static uint32_t heap_ind = (uint32_t) &__mbed_sbrk_start; uint32_t heap_ind_old = heap_ind; uint32_t heap_ind_new = heap_ind_old + incr; if (heap_ind_new > (uint32_t) &__mbed_krbs_start) { errno = ENOMEM; return (void *) -1; } heap_ind = heap_ind_new; return (void *) heap_ind_old; }