start_secondary
__vmstart(start_secondary, stack_start);
extern asmlinkage void start_secondary(void);
asmlinkage void start_secondary(void);
void start_secondary(void *unused);
stack_start.start_kernel_fn = start_secondary;
idle->thread.request.thread.proc = start_secondary;
initial_code = (unsigned long)start_secondary;
ANNOTATE_NOENDBR_SYM(start_secondary);