Emil Johnsen / mbed-src-STM32F030K6

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of mbed-src by Ermanno Brusadin

targets/cmsis/TARGET_STM/TARGET_NUCLEO_L053R8/TOOLCHAIN_ARM_STD/sys.cpp@5:a95fd30f2195, 2016-10-23 (annotated)

Committer:
emilj
Date:
Sun Oct 23 17:23:00 2016 +0000
Revision:
5:a95fd30f2195
Parent:
0:0a673c671a56 
n/a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:0a673c671a56 1 /* mbed Microcontroller Library - stackheap
ebrus 0:0a673c671a56 2 * Setup a fixed single stack/heap memory model,
ebrus 0:0a673c671a56 3 * between the top of the RW/ZI region and the stackpointer
ebrus 0:0a673c671a56 4 *******************************************************************************
ebrus 0:0a673c671a56 5 * Copyright (c) 2014, STMicroelectronics
ebrus 0:0a673c671a56 6 * All rights reserved.
ebrus 0:0a673c671a56 7 *
ebrus 0:0a673c671a56 8 * Redistribution and use in source and binary forms, with or without
ebrus 0:0a673c671a56 9 * modification, are permitted provided that the following conditions are met:
ebrus 0:0a673c671a56 10 *
ebrus 0:0a673c671a56 11 * 1. Redistributions of source code must retain the above copyright notice,
ebrus 0:0a673c671a56 12 * this list of conditions and the following disclaimer.
ebrus 0:0a673c671a56 13 * 2. Redistributions in binary form must reproduce the above copyright notice,
ebrus 0:0a673c671a56 14 * this list of conditions and the following disclaimer in the documentation
ebrus 0:0a673c671a56 15 * and/or other materials provided with the distribution.
ebrus 0:0a673c671a56 16 * 3. Neither the name of STMicroelectronics nor the names of its contributors
ebrus 0:0a673c671a56 17 * may be used to endorse or promote products derived from this software
ebrus 0:0a673c671a56 18 * without specific prior written permission.
ebrus 0:0a673c671a56 19 *
ebrus 0:0a673c671a56 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ebrus 0:0a673c671a56 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ebrus 0:0a673c671a56 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
ebrus 0:0a673c671a56 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
ebrus 0:0a673c671a56 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ebrus 0:0a673c671a56 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
ebrus 0:0a673c671a56 26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
ebrus 0:0a673c671a56 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ebrus 0:0a673c671a56 28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
ebrus 0:0a673c671a56 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ebrus 0:0a673c671a56 30 *******************************************************************************
ebrus 0:0a673c671a56 31 */
ebrus 0:0a673c671a56 32
ebrus 0:0a673c671a56 33 #ifdef __cplusplus
ebrus 0:0a673c671a56 34 extern "C" {
ebrus 0:0a673c671a56 35 #endif
ebrus 0:0a673c671a56 36
ebrus 0:0a673c671a56 37 #include <rt_misc.h>
ebrus 0:0a673c671a56 38 #include <stdint.h>
ebrus 0:0a673c671a56 39
ebrus 0:0a673c671a56 40 extern char Image$$RW_IRAM1$$ZI$$Limit[];
ebrus 0:0a673c671a56 41
ebrus 0:0a673c671a56 42 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
ebrus 0:0a673c671a56 43 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
ebrus 0:0a673c671a56 44 uint32_t sp_limit = __current_sp();
ebrus 0:0a673c671a56 45
ebrus 0:0a673c671a56 46 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
ebrus 0:0a673c671a56 47
ebrus 0:0a673c671a56 48 struct __initial_stackheap r;
ebrus 0:0a673c671a56 49 r.heap_base = zi_limit;
ebrus 0:0a673c671a56 50 r.heap_limit = sp_limit;
ebrus 0:0a673c671a56 51 return r;
ebrus 0:0a673c671a56 52 }
ebrus 0:0a673c671a56 53
ebrus 0:0a673c671a56 54 #ifdef __cplusplus
ebrus 0:0a673c671a56 55 }
ebrus 0:0a673c671a56 56 #endif