ia64: Fix things so that they compile with the latest GCC 3.4, which optimize

	away static variables with no compiler-visible use.

arch/ia64/hp/sim/boot/boot_head.S

@@ -27,6 +27,14 @@ GLOBAL_ENTRY(_start)
 	br.call.sptk.many rp=start_bootloader
 END(_start)
 
+/*
+ * Set a break point on this function so that symbols are available to set breakpoints in
+ * the kernel being debugged.
+ */
+GLOBAL_ENTRY(debug_break)
+	br.ret.sptk.many b0
+END(debug_break)
+
 GLOBAL_ENTRY(ssc)
 	.regstk 5,0,0,0
 	mov r15=in4

arch/ia64/hp/sim/boot/bootloader.c

@@ -37,15 +37,7 @@ struct disk_stat {
 
 extern void jmp_to_kernel (unsigned long bp, unsigned long e_entry);
 extern struct ia64_boot_param *sys_fw_init (const char *args, int arglen);
-
-/*
- * Set a break point on this function so that symbols are available to set breakpoints in
- * the kernel being debugged.
- */
-static void
-debug_break (void)
-{
-}
+extern void debug_break (void);
 
 static void
 cons_write (const char *buf)

arch/ia64/kernel/init_task.c

@@ -28,15 +28,13 @@ struct mm_struct init_mm = INIT_MM(init_mm);
  */
 #define init_thread_info	init_task_mem.s.thread_info
 
-static union {
+union {
 	struct {
 		struct task_struct task;
 		struct thread_info thread_info;
 	} s;
 	unsigned long stack[KERNEL_STACK_SIZE/sizeof (unsigned long)];
-} init_task_mem asm ("init_task_mem") __attribute__((section(".data.init_task"))) = {{
+} init_task_mem asm ("init_task") __attribute__((section(".data.init_task"))) = {{
 	.task =		INIT_TASK(init_task_mem.s.task),
 	.thread_info =	INIT_THREAD_INFO(init_task_mem.s.task)
 }};
-
-extern struct task_struct init_task __attribute__ ((alias("init_task_mem")));