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The PACBTI is an optional hardware security feature, the current implementation assumes that every SoC that has Armv8.1-M architecture extension, has the PACBTI hardware feature, which does not have to be the case. Hence, the `portHAS_PACBTI_FEATURE` is removed and the implementation is modified to rely on `configENABLE_PAC` and `configENABLE_BTI` macros that can either be set using CMake or FreeRTOSConfig.h header file. Enabling PAC and/or BTI on a port variant that doesn't have the PACBTI hardware feature would be caught by a `configASSERT` statement. Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> Co-authored-by: Tony Josi <tonyjosi@amazon.com>
Each real time kernel port consists of three files that contain the core kernel components and are common to every port, and one or more files that are specific to a particular microcontroller and/or compiler. + The FreeRTOS/Source/Portable/MemMang directory contains the five sample memory allocators as described on the https://www.FreeRTOS.org WEB site. + The other directories each contain files specific to a particular microcontroller or compiler, where the directory name denotes the compiler specific files the directory contains. For example, if you are interested in the [compiler] port for the [architecture] microcontroller, then the port specific files are contained in FreeRTOS/Source/Portable/[compiler]/[architecture] directory. If this is the only port you are interested in then all the other directories can be ignored.