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b5020cb3d8
This change removes the FreeRTOS System Calls (aka MPU wrappers) for the following kernel APIs: - xTaskCreateRestricted - xTaskCreateRestrictedStatic - vTaskAllocateMPURegions A system call allows an unprivileged task to execute a kernel API which is otherwise accessible to privileged software only. The above 3 APIs can create a new task with a different MPU configuration or alter the MPU configuration of an existing task. This an be (mis)used by an unprivileged task to grant itself access to a region which it does not have access to. Removing the system calls for these APIs ensures that an unprivileged task cannot execute this APIs. If an unprivileged task attempts to execute any of these API, it will result in a Memory Fault. Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> |
4 years ago | |
|---|---|---|
| .. | ||
| ARMClang | 5 years ago | |
| ARMv8M | 4 years ago | |
| BCC/16BitDOS | 4 years ago | |
| CCS | 4 years ago | |
| CodeWarrior | 4 years ago | |
| Common | 4 years ago | |
| GCC | 4 years ago | |
| IAR | 4 years ago | |
| Keil | 5 years ago | |
| MPLAB | 4 years ago | |
| MSVC-MingW | 4 years ago | |
| MemMang | 4 years ago | |
| MikroC/ARM_CM4F | 4 years ago | |
| Paradigm/Tern_EE | 4 years ago | |
| RVDS | 4 years ago | |
| Renesas | 4 years ago | |
| Rowley | 4 years ago | |
| SDCC/Cygnal | 4 years ago | |
| Softune | 4 years ago | |
| Tasking/ARM_CM4F | 4 years ago | |
| ThirdParty | 4 years ago | |
| WizC/PIC18 | 4 years ago | |
| oWatcom/16BitDOS | 4 years ago | |
| readme.txt | 5 years ago | |
readme.txt
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.