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Add check for if the scheduler is running to MPU ports (#954)

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* In the ARM_CM3_MPU and ARM_CM4_MPU Port function xPortIsAuthorizedToAccessBuffer() grant access to the buffer if xSchedulerRunning is false.
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Soren Ptak 2024-01-23 14:48:20 -05:00 committed by GitHub
parent cf2366c949
commit 4d9f6522e5
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4 changed files with 37 additions and 4 deletions
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10
portable/GCC/ARM_CM3_MPU/port.c
View file

@ -1380,7 +1380,15 @@ BaseType_t xPortIsAuthorizedToAccessBuffer( const void * pvBuffer,
BaseType_t xAccessGranted = pdFALSE; BaseType_t xAccessGranted = pdFALSE;
const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */ const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */
if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG ) if( xSchedulerRunning == pdFALSE )
{
/* Grant access to all the kernel objects before the scheduler
* is started. It is necessary because there is no task running
* yet and therefore, we cannot use the permissions of any
* task. */
xAccessGranted = pdTRUE;
}
else if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG )
{ {
xAccessGranted = pdTRUE; xAccessGranted = pdTRUE;
} }

10
portable/GCC/ARM_CM4_MPU/port.c
View file

@ -1523,7 +1523,15 @@ BaseType_t xPortIsAuthorizedToAccessBuffer( const void * pvBuffer,
BaseType_t xAccessGranted = pdFALSE; BaseType_t xAccessGranted = pdFALSE;
const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */ const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */
if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG ) if( xSchedulerRunning == pdFALSE )
{
/* Grant access to all the kernel objects before the scheduler
* is started. It is necessary because there is no task running
* yet and therefore, we cannot use the permissions of any
* task. */
xAccessGranted = pdTRUE;
}
else if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG )
{ {
xAccessGranted = pdTRUE; xAccessGranted = pdTRUE;
} }

10
portable/IAR/ARM_CM4F_MPU/port.c
View file

@ -1253,7 +1253,15 @@ BaseType_t xPortIsAuthorizedToAccessBuffer( const void * pvBuffer,
BaseType_t xAccessGranted = pdFALSE; BaseType_t xAccessGranted = pdFALSE;
const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */ const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */
if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG ) if( xSchedulerRunning == pdFALSE )
{
/* Grant access to all the kernel objects before the scheduler
* is started. It is necessary because there is no task running
* yet and therefore, we cannot use the permissions of any
* task. */
xAccessGranted = pdTRUE;
}
else if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG )
{ {
xAccessGranted = pdTRUE; xAccessGranted = pdTRUE;
} }

11
portable/RVDS/ARM_CM4_MPU/port.c
View file

@ -1508,7 +1508,16 @@ BaseType_t xPortIsAuthorizedToAccessBuffer( const void * pvBuffer,
BaseType_t xAccessGranted = pdFALSE; BaseType_t xAccessGranted = pdFALSE;
const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */ const xMPU_SETTINGS * xTaskMpuSettings = xTaskGetMPUSettings( NULL ); /* Calling task's MPU settings. */
if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG )
if( xSchedulerRunning == pdFALSE )
{
/* Grant access to all the kernel objects before the scheduler
* is started. It is necessary because there is no task running
* yet and therefore, we cannot use the permissions of any
* task. */
xAccessGranted = pdTRUE;
}
else if( ( xTaskMpuSettings->ulTaskFlags & portTASK_IS_PRIVILEGED_FLAG ) == portTASK_IS_PRIVILEGED_FLAG )
{ {
xAccessGranted = pdTRUE; xAccessGranted = pdTRUE;
} }