Ken Todotani / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F334R8/TOOLCHAIN_ARM_MICRO/sys.cpp@237:f3da66175598, 2014-06-24 (annotated)

Committer:
mbed_official
Date:
Tue Jun 24 14:45:08 2014 +0100
Revision:
237:f3da66175598
Synchronized with git revision 8ef659bca81f12dfc896b5a7af7c2abbd1a1b8b7



Full URL: https://github.com/mbedmicro/mbed/commit/8ef659bca81f12dfc896b5a7af7c2abbd1a1b8b7/



[NUCLEO_F334R8] Add platform files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 237:f3da66175598 1 /* mbed Microcontroller Library - stackheap
mbed_official 237:f3da66175598 2 * Setup a fixed single stack/heap memory model,
mbed_official 237:f3da66175598 3 * between the top of the RW/ZI region and the stackpointer
mbed_official 237:f3da66175598 4 *******************************************************************************
mbed_official 237:f3da66175598 5 * Copyright (c) 2014, STMicroelectronics
mbed_official 237:f3da66175598 6 * All rights reserved.
mbed_official 237:f3da66175598 7 *
mbed_official 237:f3da66175598 8 * Redistribution and use in source and binary forms, with or without
mbed_official 237:f3da66175598 9 * modification, are permitted provided that the following conditions are met:
mbed_official 237:f3da66175598 10 *
mbed_official 237:f3da66175598 11 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 237:f3da66175598 12 * this list of conditions and the following disclaimer.
mbed_official 237:f3da66175598 13 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 237:f3da66175598 14 * this list of conditions and the following disclaimer in the documentation
mbed_official 237:f3da66175598 15 * and/or other materials provided with the distribution.
mbed_official 237:f3da66175598 16 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 237:f3da66175598 17 * may be used to endorse or promote products derived from this software
mbed_official 237:f3da66175598 18 * without specific prior written permission.
mbed_official 237:f3da66175598 19 *
mbed_official 237:f3da66175598 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 237:f3da66175598 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 237:f3da66175598 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 237:f3da66175598 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 237:f3da66175598 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 237:f3da66175598 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 237:f3da66175598 26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 237:f3da66175598 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 237:f3da66175598 28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 237:f3da66175598 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 237:f3da66175598 30 *******************************************************************************
mbed_official 237:f3da66175598 31 */
mbed_official 237:f3da66175598 32
mbed_official 237:f3da66175598 33 #ifdef __cplusplus
mbed_official 237:f3da66175598 34 extern "C" {
mbed_official 237:f3da66175598 35 #endif
mbed_official 237:f3da66175598 36
mbed_official 237:f3da66175598 37 #include <rt_misc.h>
mbed_official 237:f3da66175598 38 #include <stdint.h>
mbed_official 237:f3da66175598 39
mbed_official 237:f3da66175598 40 extern char Image$$RW_IRAM1$$ZI$$Limit[];
mbed_official 237:f3da66175598 41
mbed_official 237:f3da66175598 42 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
mbed_official 237:f3da66175598 43 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
mbed_official 237:f3da66175598 44 uint32_t sp_limit = __current_sp();
mbed_official 237:f3da66175598 45
mbed_official 237:f3da66175598 46 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
mbed_official 237:f3da66175598 47
mbed_official 237:f3da66175598 48 struct __initial_stackheap r;
mbed_official 237:f3da66175598 49 r.heap_base = zi_limit;
mbed_official 237:f3da66175598 50 r.heap_limit = sp_limit;
mbed_official 237:f3da66175598 51 return r;
mbed_official 237:f3da66175598 52 }
mbed_official 237:f3da66175598 53
mbed_official 237:f3da66175598 54 #ifdef __cplusplus
mbed_official 237:f3da66175598 55 }
mbed_official 237:f3da66175598 56 #endif