Ermanno Brusadin / mbed

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.

Dependents:   FRDM-KL46Z_LCD_Test FRDM-KL46Z_LCD_Test FRDM-KL46Z_Plantilla FRDM-KL46Z_Plantilla ... more

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/TOOLCHAIN_ARM_STD/sys.cpp@0:6bc4ac881c8e, 2016-07-28 (annotated)

Committer:
ebrus
Date:
Thu Jul 28 15:56:34 2016 +0000
Revision:
0:6bc4ac881c8e
1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:6bc4ac881c8e 1 /* mbed Microcontroller Library - stackheap
ebrus 0:6bc4ac881c8e 2 * Setup a fixed single stack/heap memory model,
ebrus 0:6bc4ac881c8e 3 * between the top of the RW/ZI region and the stackpointer
ebrus 0:6bc4ac881c8e 4 *******************************************************************************
ebrus 0:6bc4ac881c8e 5 * Copyright (c) 2014, STMicroelectronics
ebrus 0:6bc4ac881c8e 6 * All rights reserved.
ebrus 0:6bc4ac881c8e 7 *
ebrus 0:6bc4ac881c8e 8 * Redistribution and use in source and binary forms, with or without
ebrus 0:6bc4ac881c8e 9 * modification, are permitted provided that the following conditions are met:
ebrus 0:6bc4ac881c8e 10 *
ebrus 0:6bc4ac881c8e 11 * 1. Redistributions of source code must retain the above copyright notice,
ebrus 0:6bc4ac881c8e 12 * this list of conditions and the following disclaimer.
ebrus 0:6bc4ac881c8e 13 * 2. Redistributions in binary form must reproduce the above copyright notice,
ebrus 0:6bc4ac881c8e 14 * this list of conditions and the following disclaimer in the documentation
ebrus 0:6bc4ac881c8e 15 * and/or other materials provided with the distribution.
ebrus 0:6bc4ac881c8e 16 * 3. Neither the name of STMicroelectronics nor the names of its contributors
ebrus 0:6bc4ac881c8e 17 * may be used to endorse or promote products derived from this software
ebrus 0:6bc4ac881c8e 18 * without specific prior written permission.
ebrus 0:6bc4ac881c8e 19 *
ebrus 0:6bc4ac881c8e 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ebrus 0:6bc4ac881c8e 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ebrus 0:6bc4ac881c8e 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
ebrus 0:6bc4ac881c8e 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
ebrus 0:6bc4ac881c8e 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ebrus 0:6bc4ac881c8e 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
ebrus 0:6bc4ac881c8e 26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
ebrus 0:6bc4ac881c8e 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ebrus 0:6bc4ac881c8e 28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
ebrus 0:6bc4ac881c8e 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ebrus 0:6bc4ac881c8e 30 *******************************************************************************
ebrus 0:6bc4ac881c8e 31 */
ebrus 0:6bc4ac881c8e 32
ebrus 0:6bc4ac881c8e 33 #ifdef __cplusplus
ebrus 0:6bc4ac881c8e 34 extern "C" {
ebrus 0:6bc4ac881c8e 35 #endif
ebrus 0:6bc4ac881c8e 36
ebrus 0:6bc4ac881c8e 37 #include <rt_misc.h>
ebrus 0:6bc4ac881c8e 38 #include <stdint.h>
ebrus 0:6bc4ac881c8e 39
ebrus 0:6bc4ac881c8e 40 extern char Image$$RW_IRAM1$$ZI$$Limit[];
ebrus 0:6bc4ac881c8e 41
ebrus 0:6bc4ac881c8e 42 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
ebrus 0:6bc4ac881c8e 43 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
ebrus 0:6bc4ac881c8e 44 uint32_t sp_limit = __current_sp();
ebrus 0:6bc4ac881c8e 45
ebrus 0:6bc4ac881c8e 46 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
ebrus 0:6bc4ac881c8e 47
ebrus 0:6bc4ac881c8e 48 struct __initial_stackheap r;
ebrus 0:6bc4ac881c8e 49 r.heap_base = zi_limit;
ebrus 0:6bc4ac881c8e 50 r.heap_limit = sp_limit;
ebrus 0:6bc4ac881c8e 51 return r;
ebrus 0:6bc4ac881c8e 52 }
ebrus 0:6bc4ac881c8e 53
ebrus 0:6bc4ac881c8e 54 #ifdef __cplusplus
ebrus 0:6bc4ac881c8e 55 }
ebrus 0:6bc4ac881c8e 56 #endif