/*==================================================================================================
* Project : RTD AUTOSAR 4.4
* Platform : CORTEXM
* Peripheral :
* Dependencies : none
*
* Autosar Version : 4.4.0
* Autosar Revision : ASR_REL_4_4_REV_0000
* Autosar Conf.Variant :
* SW Version : 1.0.0
* Build Version : S32K1_RTD_1_0_0_HF01_D2109_ASR_REL_4_4_REV_0000_20210907
*
* (c) Copyright 2020-2021 NXP Semiconductors
* All Rights Reserved.
*
* NXP Confidential. This software is owned or controlled by NXP and may only be
* used strictly in accordance with the applicable license terms. By expressly
* accepting such terms or by downloading, installing, activating and/or otherwise
* using the software, you are agreeing that you have read, and that you agree to
* comply with and are bound by, such license terms. If you do not agree to be
* bound by the applicable license terms, then you may not retain, install,
* activate or otherwise use the software.
==================================================================================================*/
/**
* @implements startup.c_Artifact
*/
/**
* @page misra_violations MISRA-C:2012 violations
*
* @section [global]
* Violates MISRA 2012 Advisory Rule 8.9, An object should be defined at block
* scope if its identifier only appears in a single function.
* All variables with this problem are defined in the linker files.
*
* @section [global]
* Violates MISRA 2012 Advisory Rule 8.11, When an array with external linkage
* is declared, its size should be explicitly specified.
* The size of the arrays can not be explicitly determined.
*
* @section [global]
* Violates MISRA 2012 Advisory Rule 11.4, A conversion should not be performed
* between a pointer to object and an integer type.
* The cast is required to initialize a pointer with an unsigned int define,
* representing an address.
*
* @section [global]
* Violates MISRA 2012 Required Rule 11.6, A cast shall not be performed
* between pointer to void and an arithmetic type.
* The cast is required to initialize a pointer with an unsigned int define,
* representing an address.
*
* @section [global]
* Violates MISRA 2012 Required Rule 2.1, A project shall not contain unreachable
* code.
* The condition compares two address defined in linker files that can be different.
*
* @section [global]
* Violates MISRA 2012 Advisory Rule 8.7, External could be made static.
* Function is defined for usage by application code.
*
* @section [global]
* Violates MISRA 2012 Required Rule 1.3, Unusual pointer cast (incompatible
* indirect types).
* The cast is required to cast the address of linker section to initialization layout.
*
* @section [global]
* Violates MISRA 2012 Required Rule 11.3, Cast performed between a pointer
* to object type and a pointer to a different object type.
* The cast is required to cast the address of linker section to initialization layout.
*
* @section [global]
* Violates MISRA 2012 Required Rule 11.8, Attempt to cast away const/volatile from a pointer or reference.
* The cast is required to cast the initialization layout structure.
*
* @section [global]
* Violates MISRA 2012 Advisory Rule 18.4, Pointer arithmetic other than array indexing used.
* This is required to increment the source address.
*
*/
#include "Std_Types.h"
/*******************************************************************************
* Definitions
*******************************************************************************/
/*!
* @brief Defines the init table layout
*/
typedef struct
{
uint8 * ram_start; /*!< Start address of section in RAM */
uint8 * rom_start; /*!< Start address of section in ROM */
uint8 * rom_end; /*!< End address of section in ROM */
} Sys_CopyLayoutType;
/*!
* @brief Defines the zero table layout
*/
typedef struct
{
uint8 * ram_start; /*!< Start address of section in RAM */
uint8 * ram_end; /*!< End address of section in RAM */
} Sys_ZeroLayoutType;
extern uint32 __INIT_TABLE[];
extern uint32 __ZERO_TABLE[];
#if (defined(__ARMCC_VERSION))
extern uint32 __VECTOR_RAM;
#else
extern uint32 __VECTOR_RAM[];
#endif
/*******************************************************************************
* Static Variables
******************************************************************************/
/*******************************************************************************
* Code
******************************************************************************/
/*FUNCTION**********************************************************************
*
* Function Name : init_data_bss
* Description : Make necessary initializations for RAM.
* - Copy the vector table from ROM to RAM.
* - Copy initialized data from ROM to RAM.
* - Copy code that should reside in RAM from ROM
* - Clear the zero-initialized data section.
*
* Tool Chains:
* __GNUC__ : GNU Compiler Collection
* __ghs__ : Green Hills ARM Compiler
* __ICCARM__ : IAR ARM Compiler
* __DCC__ : Wind River Diab Compiler
* __ARMCC_VERSION : ARMC Compiler
*
* Implements : init_data_bss_Activity
*END**************************************************************************/
void init_data_bss(void);
void init_data_bss(void)
{
const Sys_CopyLayoutType * copy_layout;
const Sys_ZeroLayoutType * zero_layout;
const uint8 * rom;
uint8 * ram;
uint32 len = 0U;
uint32 size = 0U;
uint32 i = 0U;
uint32 j = 0U;
const uint32 * initTable_Ptr = (uint32 *)__INIT_TABLE;
const uint32 * zeroTable_Ptr = (uint32*)__ZERO_TABLE;
/* Copy initialized table */
len = *initTable_Ptr;
initTable_Ptr++;
copy_layout = (const Sys_CopyLayoutType *)initTable_Ptr;
for(i = 0; i < len; i++)
{
rom = copy_layout[i].rom_start;
ram = copy_layout[i].ram_start;
size = (uint32)copy_layout[i].rom_end - (uint32)copy_layout[i].rom_start;
for(j = 0UL; j < size; j++)
{
ram[j] = rom[j];
}
}
/* Clear zero table */
len = *zeroTable_Ptr;
zeroTable_Ptr++;
zero_layout = (const Sys_ZeroLayoutType *)zeroTable_Ptr;
for(i = 0; i < len; i++)
{
ram = zero_layout[i].ram_start;
size = (uint32)zero_layout[i].ram_end - (uint32)zero_layout[i].ram_start;
for(j = 0UL; j < size; j++)
{
ram[j] = 0U;
}
}
}
/*******************************************************************************
* EOF
******************************************************************************/