FreeRTOS-Kernel/portable/RVDS
Soren Ptak 84bdb05bd2
Fix portSWITCH_TO_USER_MODE() on Armv7-M MPU ports (#803)
A task's privilege level is stored in ulTaskFlag member in the TCB. Current
implementation of portSWITCH_TO_USER_MODE() does not update this
flag but just lowers the processor's privilege level. This results in many
APIs incorrectly determining task's privilege level and access permissions -

- xPortIsAuthorizedToAccessBuffer
- xPortIsTaskPrivileged
- xPortIsAuthorizedToAccessKernelObject

This PR fixes the portSWITCH_TO_USER_MODE() implementation to correctly
update the ulTaskFlag member in the TCB before lowering the processor's
privilege level.
2023-09-26 14:36:23 +05:30
..
ARM7_LPC21xx CI-CD Updates (#768) 2023-09-05 14:24:04 -07:00
ARM_CA9 CI-CD Updates (#768) 2023-09-05 14:24:04 -07:00
ARM_CM0 Add trace hook macro for most ports (#794) 2023-09-20 16:19:42 +05:30
ARM_CM3 Add trace hook macro for most ports (#794) 2023-09-20 16:19:42 +05:30
ARM_CM4_MPU Fix portSWITCH_TO_USER_MODE() on Armv7-M MPU ports (#803) 2023-09-26 14:36:23 +05:30
ARM_CM4F Add trace hook macro for most ports (#794) 2023-09-20 16:19:42 +05:30
ARM_CM7 Add trace hook macro for most ports (#794) 2023-09-20 16:19:42 +05:30