[zephyr] Fixed defining thread stack for Matter thread

config/nrfconnect/app/sample-defaults.conf

@@ -25,6 +25,7 @@ CONFIG_PRINTK_SYNC=y
 CONFIG_ASSERT=y
 CONFIG_HW_STACK_PROTECTION=y
 CONFIG_SHELL=y
+CONFIG_FPU=y
 
 # Enable getting reboot reasons information
 CONFIG_HWINFO=y

src/include/platform/internal/GenericPlatformManagerImpl_Zephyr.cpp

@@ -174,7 +174,10 @@ void GenericPlatformManagerImpl_Zephyr<ImplClass>::EventLoopTaskMain(void * this
 template <class ImplClass>
 CHIP_ERROR GenericPlatformManagerImpl_Zephyr<ImplClass>::_StartEventLoopTask(void)
 {
-    const auto tid = k_thread_create(&mChipThread, mChipThreadStack, K_THREAD_STACK_SIZEOF(mChipThreadStack), EventLoopTaskMain,
+    if (!mChipThreadStack)
+        return CHIP_ERROR_WELL_UNINITIALIZED;
+
+    const auto tid = k_thread_create(&mChipThread, mChipThreadStack, CHIP_DEVICE_CONFIG_CHIP_TASK_STACK_SIZE, EventLoopTaskMain,
                                      this, nullptr, nullptr, CHIP_DEVICE_CONFIG_CHIP_TASK_PRIORITY, 0, K_NO_WAIT);
 
 #ifdef CONFIG_THREAD_NAME

src/include/platform/internal/GenericPlatformManagerImpl_Zephyr.h

@@ -45,7 +45,7 @@ template <class ImplClass>
 class GenericPlatformManagerImpl_Zephyr : public GenericPlatformManagerImpl<ImplClass>
 {
 protected:
-    using ThreadStack = k_thread_stack_t[K_THREAD_STACK_LEN(CHIP_DEVICE_CONFIG_CHIP_TASK_STACK_SIZE)];
+    using ThreadStack = k_thread_stack_t*;
 
     // Members for select() loop
     int mMaxFd;
@@ -65,7 +65,7 @@ class GenericPlatformManagerImpl_Zephyr : public GenericPlatformManagerImpl<Impl
     // Although defining thread stack as a class member is feasible it's discouraged according to
     // the Zephyr documentation (see remarks on K_THREAD_STACK_MEMBER macro). Therefore, this class
     // requires the stack reference to be passed in the constructor.
-    ThreadStack & mChipThreadStack;
+    ThreadStack mChipThreadStack;
     k_thread mChipThread;
 
     // ===== Methods that implement the PlatformManager abstract interface.
@@ -82,7 +82,7 @@ class GenericPlatformManagerImpl_Zephyr : public GenericPlatformManagerImpl<Impl
     CHIP_ERROR _Shutdown(void);
 
     // ===== Methods available to the implementation subclass.
-    explicit GenericPlatformManagerImpl_Zephyr(ThreadStack & stack) : mChipThreadStack(stack) {}
+    explicit GenericPlatformManagerImpl_Zephyr(ThreadStack stack) : mChipThreadStack(stack) {}
 
 private:
     // ===== Private members for use by this class only.

src/platform/Zephyr/PlatformManagerImpl.h

@@ -67,7 +67,7 @@ class PlatformManagerImpl final : public PlatformManager, public Internal::Gener
     System::Clock::Timestamp mStartTime      = System::Clock::kZero;
     uint32_t mSavedOperationalHoursSinceBoot = 0;
 
-    explicit PlatformManagerImpl(ThreadStack & stack) : Internal::GenericPlatformManagerImpl_Zephyr<PlatformManagerImpl>(stack) {}
+    explicit PlatformManagerImpl(ThreadStack stack) : Internal::GenericPlatformManagerImpl_Zephyr<PlatformManagerImpl>(stack) {}
 
     static PlatformManagerImpl sInstance;
 };