xtensa: Autogenerate offsets in struct thread_info

Maintaining offsets by hand is no fun.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Richard Weinberger <richard@nod.at>

arch/xtensa/include/asm/thread_info.h

@@ -61,17 +61,6 @@ struct thread_info {
 	xtregs_user_t		xtregs_user;
 };
 
-#else /* !__ASSEMBLY__ */
-
-/* offsets into the thread_info struct for assembly code access */
-#define TI_TASK		 0x00000000
-#define TI_EXEC_DOMAIN	 0x00000004
-#define TI_FLAGS	 0x00000008
-#define TI_STATUS	 0x0000000C
-#define TI_CPU		 0x00000010
-#define TI_PRE_COUNT	 0x00000014
-#define TI_ADDR_LIMIT	 0x00000018
-
 #endif
 
 /*

arch/xtensa/kernel/asm-offsets.c

@@ -77,6 +77,14 @@ int main(void)
 	DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
 	DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
 
+	/* offsets in thread_info struct */
+	OFFSET(TI_TASK, thread_info, task);
+	OFFSET(TI_FLAGS, thread_info, flags);
+	OFFSET(TI_STSTUS, thread_info, status);
+	OFFSET(TI_CPU, thread_info, cpu);
+	OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
+	OFFSET(TI_ADDR_LIMIT, thread_info, addr_limit);
+
 	/* struct thread_info (offset from start_struct) */
 	DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
 	DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));