takashi kadono / Mbed OS Nucleo_446

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Dependencies:   ssd1331

mbed-os/rtos/TARGET_CORTEX/TOOLCHAIN_ARM_MICRO/mbed_boot_arm_micro.c@3:f3764f852aa8, 2018-10-11 (annotated)

Committer:
kadonotakashi
Date:
Thu Oct 11 02:27:46 2018 +0000
Revision:
3:f3764f852aa8
Parent:
0:8fdf9a60065b 
Nucreo 446 + SSD1331 test version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* mbed Microcontroller Library
kadonotakashi 0:8fdf9a60065b 2 * Copyright (c) 2018-2018 ARM Limited
kadonotakashi 0:8fdf9a60065b 3 *
kadonotakashi 0:8fdf9a60065b 4 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 5 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 6 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 7 *
kadonotakashi 0:8fdf9a60065b 8 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 9 *
kadonotakashi 0:8fdf9a60065b 10 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 11 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 13 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 14 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 15 */
kadonotakashi 0:8fdf9a60065b 16 #include <stdlib.h>
kadonotakashi 0:8fdf9a60065b 17 #include <string.h>
kadonotakashi 0:8fdf9a60065b 18
kadonotakashi 0:8fdf9a60065b 19 #include "mbed_boot.h"
kadonotakashi 0:8fdf9a60065b 20 #include "mbed_assert.h"
kadonotakashi 0:8fdf9a60065b 21
kadonotakashi 0:8fdf9a60065b 22 /* Symbols that are typically defined in startup_<mcu>.S */
kadonotakashi 0:8fdf9a60065b 23 extern uint32_t __initial_sp[];
kadonotakashi 0:8fdf9a60065b 24 extern uint32_t __heap_base[];
kadonotakashi 0:8fdf9a60065b 25 extern uint32_t __heap_limit[];
kadonotakashi 0:8fdf9a60065b 26
kadonotakashi 0:8fdf9a60065b 27 /*
kadonotakashi 0:8fdf9a60065b 28 * mbed entry point for the MICROLIB toolchain
kadonotakashi 0:8fdf9a60065b 29 *
kadonotakashi 0:8fdf9a60065b 30 * Override the microlib function _main_init to run code earlier in
kadonotakashi 0:8fdf9a60065b 31 * the boot sequence. The function _main_init is responsible for invoking main.
kadonotakashi 0:8fdf9a60065b 32 * This function must be placed in the ".ARM.Collect" section
kadonotakashi 0:8fdf9a60065b 33 * or it won't get called.
kadonotakashi 0:8fdf9a60065b 34 */
kadonotakashi 0:8fdf9a60065b 35 void _main_init(void) __attribute__((section(".ARM.Collect$$$$000000FF")));
kadonotakashi 0:8fdf9a60065b 36 void _main_init(void)
kadonotakashi 0:8fdf9a60065b 37 {
kadonotakashi 0:8fdf9a60065b 38 /* microlib only supports the two region memory model */
kadonotakashi 0:8fdf9a60065b 39
kadonotakashi 0:8fdf9a60065b 40 mbed_heap_start = (unsigned char*)__heap_base;
kadonotakashi 0:8fdf9a60065b 41 mbed_heap_size = (uint32_t)__heap_base - (uint32_t)__heap_limit;
kadonotakashi 0:8fdf9a60065b 42
kadonotakashi 0:8fdf9a60065b 43 mbed_stack_isr_start = (unsigned char*)((uint32_t)__initial_sp - ISR_STACK_SIZE);
kadonotakashi 0:8fdf9a60065b 44 mbed_stack_isr_size = ISR_STACK_SIZE;
kadonotakashi 0:8fdf9a60065b 45
kadonotakashi 0:8fdf9a60065b 46 mbed_init();
kadonotakashi 0:8fdf9a60065b 47 mbed_rtos_start();
kadonotakashi 0:8fdf9a60065b 48 }
kadonotakashi 0:8fdf9a60065b 49
kadonotakashi 0:8fdf9a60065b 50 void $Sub$$__cpp_initialize__aeabi_(void);
kadonotakashi 0:8fdf9a60065b 51 void $Super$$__cpp_initialize__aeabi_(void);
kadonotakashi 0:8fdf9a60065b 52 void $Sub$$__cpp_initialize__aeabi_(void)
kadonotakashi 0:8fdf9a60065b 53 {
kadonotakashi 0:8fdf9a60065b 54 /* This should invoke C++ initializers but we keep
kadonotakashi 0:8fdf9a60065b 55 * this empty and invoke them RTX is initialized.
kadonotakashi 0:8fdf9a60065b 56 */
kadonotakashi 0:8fdf9a60065b 57 }
kadonotakashi 0:8fdf9a60065b 58
kadonotakashi 0:8fdf9a60065b 59 void mbed_toolchain_init()
kadonotakashi 0:8fdf9a60065b 60 {
kadonotakashi 0:8fdf9a60065b 61 /* Run the C++ global object constructors */
kadonotakashi 0:8fdf9a60065b 62 $Super$$__cpp_initialize__aeabi_();
kadonotakashi 0:8fdf9a60065b 63 }
kadonotakashi 0:8fdf9a60065b 64
kadonotakashi 0:8fdf9a60065b 65 MBED_WEAK void __aeabi_assert(const char *expr, const char *file, int line)
kadonotakashi 0:8fdf9a60065b 66 {
kadonotakashi 0:8fdf9a60065b 67 mbed_assert_internal(expr, file, line);
kadonotakashi 0:8fdf9a60065b 68 }