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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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78e0cc778a
armv8.1-m: Add task dedicated PAC key To harden the security, each task is assigned a dedicated PAC key, so that attackers needs to guess the all the tasks' PAC keys right to exploit the system using Return Oriented Programming. The kernel is now updated to support the following: * A PAC key set with a random number generated and is saved in the task's context when a task is created. * As part of scheduling, the task's PAC key is stored/restored to/from the task's context when a task is unscheduled/scheduled from/to run. stack-overflow-check: Introduce portGET_CURRENT_TOP_OF_STACK macro When MPU wrapper v2 is used, the task's context is stored in TCB and `pxTopOfStack`` member of TCB points to the context location in TCB. We, therefore, need to read PSP to find the task's current top of stack. Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com>
89 lines
3 KiB
C
89 lines
3 KiB
C
/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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#ifndef PORTMACRO_H
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#define PORTMACRO_H
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/* *INDENT-OFF* */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* *INDENT-ON* */
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/*------------------------------------------------------------------------------
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* Port specific definitions.
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*
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* The settings in this file configure FreeRTOS correctly for the given hardware
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* and compiler.
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*
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* These settings should not be altered.
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*------------------------------------------------------------------------------
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*/
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/**
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* Architecture specifics.
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*/
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#define portARCH_NAME "Cortex-M35P"
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#define portHAS_ARMV8M_MAIN_EXTENSION 1
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#define portARMV8M_MINOR_VERSION 0
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#define portDONT_DISCARD __root
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/*-----------------------------------------------------------*/
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/* ARMv8-M common port configurations. */
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#include "portmacrocommon.h"
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/*-----------------------------------------------------------*/
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#ifndef configENABLE_MVE
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#define configENABLE_MVE 0
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#elif ( configENABLE_MVE != 0 )
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#error configENABLE_MVE must be left undefined, or defined to 0 for the Cortex-M35.
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#endif
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/*-----------------------------------------------------------*/
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/**
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* @brief Critical section management.
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*/
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#define portDISABLE_INTERRUPTS() ulSetInterruptMask()
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#define portENABLE_INTERRUPTS() vClearInterruptMask( 0 )
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/*-----------------------------------------------------------*/
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/* Suppress warnings that are generated by the IAR tools, but cannot be fixed in
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* the source code because to do so would cause other compilers to generate
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* warnings. */
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#pragma diag_suppress=Be006
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#pragma diag_suppress=Pa082
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/*-----------------------------------------------------------*/
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/* *INDENT-OFF* */
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#ifdef __cplusplus
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}
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#endif
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/* *INDENT-ON* */
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#endif /* PORTMACRO_H */
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