mbed-os/targets/TARGET_NORDIC/TARGET_NRF5/reloc_vector_table.c

77 lines
3.0 KiB
C

/*
* Copyright (c) 2016 Nordic Semiconductor ASA
* 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, except as embedded into a Nordic Semiconductor ASA
* integrated circuit in a product or a software update for such product, 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 Nordic Semiconductor ASA nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific prior
* written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary or object form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* 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 "nrf.h"
#include "cmsis_nvic.h"
#include "stdint.h"
#include "nrf_sdm.h"
#include "section_vars.h"
#if defined(__CC_ARM)
__attribute__ ((section("noinit"),zero_init))
uint32_t nrf_dispatch_vector[NVIC_NUM_VECTORS];
#elif defined(__GNUC__)
__attribute__ ((section(".noinit")))
uint32_t nrf_dispatch_vector[NVIC_NUM_VECTORS];
#elif defined(__ICCARM__)
uint32_t nrf_dispatch_vector[NVIC_NUM_VECTORS] @ ".noinit";
#endif
typedef void (*generic_irq_handler_t)(void);
extern uint32_t __Vectors[];
#define VECTORS_FLASH_START __Vectors
/**
* @brief Function for relocation of the vector to RAM on nRF5x devices.
* This function is intended to be called during startup.
*/
void nrf_reloc_vector_table(void)
{
// Copy and switch to dynamic vectors
uint32_t *old_vectors = (uint32_t*)VECTORS_FLASH_START;
uint32_t i;
for (i = 0; i< NVIC_NUM_VECTORS; i++) {
nrf_dispatch_vector[i] = old_vectors[i];
}
sd_softdevice_vector_table_base_set((uint32_t) nrf_dispatch_vector);
}