Changes between FreeRTOS V11.1.0 and FreeRTOS V11.2.0 released March 04, 2025
+ Add CC-RH port for Renesas F1Kx devices. We thank @TrongNguyenR for their
contribution.
+ Add Pointer Authentication (PAC) and Branch Target Identification (BTI)
support to the ARMv8-M ports. We thank @AhmedIsmail02 for their
contribution.
+ Add Floating Point Unit (FPU) support to the ARM_AARCH64 port. We thank
@StefanBalt for their contribution.
+ Add FPU Safe Application IRQ Handler suport to the ARM_AARCH64_SRE port.
We thank @GhMarwen for their contribution.
+ Add Privileged eXecute Never MPU attribute support to the ARMv8-M ports.
We thank @AhmedIsmail02 for their contribution.
+ Update XMOS xcore.ai port to be compatible with FreeRTOS Kernel version
11. We thank @ACascarino for their contribution.
+ ARM_CRx_No_GIC port updates:
- Remove inline assembly and move assembly code to separate portASM.S
file.
- Add support for Floating Point Unit (FPU).
- Add support to allow the application writer to handle SVC calls raised
from the application code.
- Add support for vApplicationFPUSafeIRQHandler.
+ POSIX port updates:
- Set PTHREAD_MUTEX_ROBUST attribute on the mutex to prevent application
hangs when a thread dies while holding a mutex.
- Avoid calling pthread_sigmask on non-FreeROS threads when
vPortEndScheduler is called from a non-FreeRTOS thread. We thank
@johnboiles for their contribution.
- Remove unnecessary call to pthread_attr_setstacksize. We thank
@hollinsky for their contribution.
- Add an assert to catch if vPortYield is called from a non-FreeRTOS
thread. We thank @johnboiles for their contribution.
- Fix Posix port compilation on FreeBSD. We thank @tymmej for their
contribution.
+ Update the Xtensa port and move it to the Partner-Supported-Ports
repository. We thank @ianstcdns for their contribution.
+ Add vPortGenerateSimulatedInterruptFromWindowsThread API in the MSVC-MingW
port to enable native windows thread to synchronize with FreeRTOS task
through simulated interrupt.
+ Update Windows port to use Waitable Timer instead of Sleep to improve tick
accuracy. We thank @bknicholls and @leegeth for their contribution.
+ Update the value of queueQUEUE_TYPE_SET to a unique value (5) to allow
tracers to differentiate between queues and queue sets. We thank @schilkp
for their contribution.
+ Add traceSTARTING_SCHEDULER tracing hook to enable tracers to run code on
startup. We thank @schilkp for their contribution.
+ Define vApplicationGetTimerTaskMemory only when configUSE_TIMERS is set to
1. We thank @HazardyKnusperkeks for their contribution.
+ Reset xNextTaskUnblockTime in task notify FromISR APIs to allow the core
to enter sleep mode at the earliest possible time when using tickless
idle.
+ Optimize xTaskIncrementTick for SMP by removing xYieldRequiredForCore. We
thank @cymizer for their contribution.
+ Update the SMP scheduler to re-select a core to yield when the core
affinity of a ready task is changed.
+ Update xEventGroupSetBits to read the event bits value to be returned to
the caller while the scheduler is suspended. This fixes dereference after
the event group is deleted by higher priority task. We thank @skotopes for
their contribution.
+ Optimize certain getter APIs by removing unnecessary calls to
task{ENTER|EXIT}_CRITICAL() when the data access is atomic. We thank
@GuilhermeGiacomoSimoes for their contribution.
+ Optimize xTaskNotifyWait and ulTaskNotifyTake APIs to suspend the
scheduler only if the task is not already notified, and the caller is
willing to wait for the notification. We thank @jefftenney for
their contribution.
+ Fix error checking of prvCreateIdleTasks. We thank @kakkoko for their
contribution.
+ Update SMP lock macros and critical nesting macros to pass core ID as an
argument. This reduces the number of accesses to a peripheral register to
query core ID. We thank @felixvanoost for their contribution.
+ Add stack pointer bounds check when configCHECK_FOR_STACK_OVERFLOW is set
to 2 to improve reliability of stack overflow detection. We thank
@jiladahe1997 for their contribution.
+ Update run-time stats to include time elapsed since the last context
switch for the currently running task.
+ Add xQueueCreateSetStatic API for static creation of Queue Sets. We thank
@kzorer for their contribution.
+ Update the traceMALLOC() macro to pass the actual size of the allocated
block for secure_heap, heap_2, heap_4 and heap_5. We thank @DazzlingOkami
for their contribution.
+ Update heap_1 to use heapADD_WILL_OVERFLOW macro to improve readability.
We thank @wdfk-prog for their contribution.
+ Add pointer protection to the pxNextFreeBlock member of the allocated
block's metadata in heap_4 and heap_5 when configENABLE_HEAP_PROTECTOR is
set to 1. We thank @Saiiijchan for their contribution.
+ Allow the application writer to override pointer validation for heap_5
when configENABLE_HEAP_PROTECTOR is used. We thank @Saiiijchan for their
contribution.
+ Add xPortResetHeapMinimumEverFreeHeapSize to heap_4.c and heap_5.c.
We thank @TomasGalbickaNXP for their contribution.
+ Add NULL check in the event_create function in the POSIX port. We thank
@laroche for their contribution.
+ Use _GNU_SOURCE macro instead of __USE_GNU in the Posix port. We thank
@maxiaogood for their contribution.
+ Use the new __ARM_FP macro instead of the deprectred __VFP_FP__ macro in
GCC/ARM_CM7, GCC/ARM_CM4_MPU, and GCC/ARM_CM4F ports. We thank @haydenridd
for their contribution.
+ Add portMEMORY_BARRIER definition to the Xtensa port. We thank @superroc
for their contribution.
+ Move the hardware include msp430.h to port.c from portmacro.h. We thank
@mayl for their contribution.
+ Update ARM assembly syntax for Cortex-M ports. We thank @laroche for their
contribution.
+ Update the Windows port to records a pending yield in
vPortCloseRunningThread to ensure that the next tick interrupt schedules
the next task regardless of the value of configUSE_PREEMPTION.
+ Fix the context switch issue in the RL78 port. We thank @KeitaKashima for
their contribution.
+ Fix compilation issue in ARM CM0 port when using Keil MDK. We thank
@TomasGalbickaNXP for their contribution.
+ Fix IA32 port compilation when configUSE_COMMON_INTERRUPT_ENTRY_POINT is
set to 0. We thank @Ryzee119 for their contribution.
+ Store configMTIMECMP_BASE_ADDRESS in a 64-bit integer for the RISC-V port.
We thank @vishwamartur for their contribution.
+ Fix nested interrupt handling and optimize FPU related context switching
for the F1Kx port. We thank @TrongNguyenR for their contribution.
+ Update the RP2040 port to add support for Raspberry Pi Pico SDK 2.0.0.
We thank @kilograham for their contribution.
+ Fix the return value of portYIELD_FROM_ISR macro for the MSVC-MingW port.
We thank @wwhheerree for their contribution.
+ Optimize vApplicationFPUSafeIRQHandler for the Coretex-A9 port by
removing the unnecessarily preserved callee saved registers. We thank
@Saiiijchan for their contribution.
+ Fix the context array size for MPU ports to ensure the saved context
location falls within the reserved context area rather than overlapping
with the next MPU_SETTINGS structure member.
+ Update CMake files for RP2040 port to fetch the port from the
Community-Supported-Ports repo. We thank @kilograham for their
contribution.
+ Fix CMake file for the GCC ARM_CM0 port to include MPU files. We thank
@0mhu for their contribution.
+ Add an example of human readable table generated by vTaskListTasks() in
the function documentation. We thank @wwhheerree for their contribution.