8bcffefb33
* We are now *much* better at not reserving unnecessary system MPU regions based on configuration. The #defines for intent are now an enumerated type. As a bonus, the implementation of _get_region_index_by_type() is much simpler. Previously we were wasting regions for stack guard and application memory if they were not configured. * NXP MPU doesn't reserve the last region if HW stack protection isn't enabled. * Certain parts of the MPU code are now properly ifdef'd based on configuration. * THREAD_STACK_REGION and THREAD_STACK_USER_REGION was a confusing construction and has now been replaced with just THREAD_STACK_REGION, which represents the MPU region for a user mode thread stack. Supervisor mode stacks do not require an MPU region. * The bounds of CONFIG_APPLICATION_MEMORY never changes and we just do it once during initialization instead of every context switch. * Assertions have been added to catch out-of-bounds cases. Fixes: #7384 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com> |
||
|---|---|---|
| .. | ||
| cortex_m | ||
| arch.h | ||