diff options
Diffstat (limited to 'Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/portmacro.h')
| -rw-r--r-- | Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/portmacro.h | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/portmacro.h b/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/portmacro.h index 6057f1c0e..3458b0e0f 100644 --- a/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/portmacro.h +++ b/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/portmacro.h @@ -1,6 +1,6 @@ /* - * FreeRTOS Kernel V10.0.1 - * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * FreeRTOS Kernel V10.2.1 + * Copyright (C) 2019 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 @@ -200,18 +200,28 @@ not necessary for to use this port. They are defined so the common demo files #ifndef portFORCE_INLINE #define portFORCE_INLINE inline __attribute__(( always_inline)) #endif +/*-----------------------------------------------------------*/ -/* Set the privilege level to user mode if xRunningPrivileged is false. */ -portFORCE_INLINE static void vPortResetPrivilege( BaseType_t xRunningPrivileged ) -{ - if( xRunningPrivileged != pdTRUE ) - { - __asm volatile ( " mrs r0, control \n" \ - " orr r0, #1 \n" \ - " msr control, r0 \n" \ - :::"r0", "memory" ); - } -} +extern BaseType_t xIsPrivileged( void ); +extern void vResetPrivilege( void ); + +/** + * @brief Checks whether or not the processor is privileged. + * + * @return 1 if the processor is already privileged, 0 otherwise. + */ +#define portIS_PRIVILEGED() xIsPrivileged() + +/** + * @brief Raise an SVC request to raise privilege. +*/ +#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" ); + +/** + * @brief Lowers the privilege level by setting the bit 0 of the CONTROL + * register. + */ +#define portRESET_PRIVILEGE() vResetPrivilege() /*-----------------------------------------------------------*/ portFORCE_INLINE static BaseType_t xPortIsInsideInterrupt( void ) @@ -281,6 +291,7 @@ portFORCE_INLINE static void vPortSetBASEPRI( uint32_t ulNewMaskValue ) } /*-----------------------------------------------------------*/ +#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" ) #ifdef __cplusplus } |