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/*
* FreeRTOS V202212.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/* ARM includes. */
#include <arm_cmse.h>
/* Interface includes. */
#include "nsc_printf.h"
/* FreeRTOS includes. */
#include "secure_port_macros.h"
/* Device includes. */
#include "fsl_debug_console.h"
/*-----------------------------------------------------------*/
/* Maximum length of the string that the non-secure code
* can print. */
#define MAX_ALLOWED_STRING_LENGTH 0x400
/*-----------------------------------------------------------*/
secureportNON_SECURE_CALLABLE void NSC_Printf( char const *str )
{
uint32_t isInvalidSting = 0;
size_t stringLength;
/* Check whether the string is null terminated. */
stringLength = strnlen( str, MAX_ALLOWED_STRING_LENGTH );
if( ( stringLength == MAX_ALLOWED_STRING_LENGTH ) &&
( str[ stringLength ] != '\0') )
{
PRINTF( "[ERROR] [NSC_Printf] String too long or not null terminated!\r\n" );
isInvalidSting = 1;
}
if( isInvalidSting == 0 )
{
/* Check whether the string is located in non-secure memory. */
if( cmse_check_address_range( ( void * ) str,
stringLength,
( CMSE_NONSECURE | CMSE_MPU_READ ) ) == NULL )
{
PRINTF( "[ERROR] [NSC_Printf] String is not located in non-secure memory!\r\n" );
isInvalidSting = 1;
}
}
/* Print the string if it is a valid string. */
if( isInvalidSting == 0 )
{
PRINTF( str );
}
}
/*-----------------------------------------------------------*/
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