kernel: fix thread prio and stack size types in some APIs

Prio should be an int, since values are small integers, not a fixed-size
int32_t. It aligns with the prio parameters of the other APIs.

Stack size should be size_t.

Change-Id: Id29751b86c4ad7a7c2a7ffe446c2a96ae83c77bf
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>

arch/arc/core/thread.c

@@ -84,7 +84,7 @@ static ALWAYS_INLINE void thread_monitor_init(struct k_thread *thread)
  *
  * @return N/A
  */
-void _new_thread(char *pStackMem, unsigned stackSize,
+void _new_thread(char *pStackMem, size_t stackSize,
 		 void *uk_task_ptr, _thread_entry_t pEntry,
 		 void *parameter1, void *parameter2, void *parameter3,
 		 int priority, unsigned options)

arch/arm/core/thread.c

@@ -80,7 +80,7 @@ static ALWAYS_INLINE void thread_monitor_init(struct tcs *tcs)
  * @return N/A
  */
 
-void _new_thread(char *pStackMem, unsigned stackSize,
+void _new_thread(char *pStackMem, size_t stackSize,
 		 void *uk_task_ptr, _thread_entry_t pEntry,
 		 void *parameter1, void *parameter2, void *parameter3,
 		 int priority, unsigned options)

arch/nios2/core/thread.c

@@ -60,7 +60,7 @@ struct init_stack_frame {
 };
 
 
-void _new_thread(char *stack_memory, unsigned stack_size,
+void _new_thread(char *stack_memory, size_t stack_size,
 		 void *uk_task_ptr, _thread_entry_t thread_func,
 		 void *arg1, void *arg2, void *arg3,
 		 int priority, unsigned options)

arch/x86/core/thread.c

@@ -245,7 +245,7 @@ __asm__("\t.globl _thread_entry\n"
  *
  * @return opaque pointer to initialized k_thread structure
  */
-void _new_thread(char *pStackMem, unsigned stackSize,
+void _new_thread(char *pStackMem, size_t stackSize,
 		 void *uk_task_ptr, _thread_entry_t pEntry,
 		 void *parameter1, void *parameter2, void *parameter3,
 		 int priority, unsigned options)

include/kernel.h

@@ -152,10 +152,10 @@ typedef void (*k_thread_entry_t)(void *p1, void *p2, void *p3);
  *
  * @return ID of new thread.
  */
-extern k_tid_t k_thread_spawn(char *stack, unsigned stack_size,
+extern k_tid_t k_thread_spawn(char *stack, size_t stack_size,
 			      k_thread_entry_t entry,
 			      void *p1, void *p2, void *p3,
-			      int32_t prio, uint32_t options, int32_t delay);
+			      int prio, uint32_t options, int32_t delay);
 
 /**
  * @brief Put the current thread to sleep.
@@ -1391,7 +1391,7 @@ static inline int k_work_pending(struct k_work *work)
  * @return N/A
  */
 extern void k_work_q_start(struct k_work_q *work_q, char *stack,
-			   unsigned stack_size, unsigned prio);
+			   size_t stack_size, int prio);
 
 /**
  * @brief Initialize a delayed work item.

kernel/unified/include/nano_internal.h

@@ -54,7 +54,7 @@ typedef void (*_thread_entry_t)(void *, void *, void *);
 extern void _thread_entry(void (*)(void *, void *, void *),
 			  void *, void *, void *);
 
-extern void _new_thread(char *pStack, unsigned stackSize,
+extern void _new_thread(char *pStack, size_t stackSize,
 			void *uk_task_ptr,
 			void (*pEntry)(void *, void *, void *),
 			void *p1, void *p2, void *p3,

kernel/unified/thread.c

@@ -230,10 +230,10 @@ static void schedule_new_thread(struct k_thread *thread, int32_t delay)
 #endif
 }
 
-k_tid_t k_thread_spawn(char *stack, unsigned stack_size,
+k_tid_t k_thread_spawn(char *stack, size_t stack_size,
 			void (*entry)(void *, void *, void*),
 			void *p1, void *p2, void *p3,
-			int32_t prio, uint32_t options, int32_t delay)
+			int prio, uint32_t options, int32_t delay)
 {
 	__ASSERT(!_is_in_isr(), "");
 

kernel/unified/work_q.c

@@ -54,7 +54,7 @@ static void work_q_main(void *work_q_ptr, void *p2, void *p3)
 }
 
 void k_work_q_start(struct k_work_q *work_q, char *stack,
-		    unsigned stack_size, unsigned prio)
+		    size_t stack_size, int prio)
 {
 	k_fifo_init(&work_q->fifo);