Hi Sumeet, On Wednesday 13 July 2011 04:12 PM, sumeet linux wrote: > Dear friends, > > I want to know the basics xx_initcall ( ) in linux kernel. How this function > works ? > Observed in kernel code, many places late_initcall ( ), early_initcall ( ), > arch_initcall ( ), core_initcall ( ) gets called. > When did all these functions gets call during kernel initialization ? > I am more interested in what is the sequence of these functions gets called > one after another. I could get a nice link explaining about *_initcall(). Refer: http://book.opensourceproject.org.cn/embedded/embeddedprime/opensource/0136130550/ch05lev1sec4.html *_initcall() are macros which set the function pointers for subsystem initialization (typedef int (*initcall_t)(void) : typedef of all such function pointers). Also if we look at the source code, the functions are called in below sequence: http://lxr.linux.no/#linux+v2.6.39/init/main.c#L695 do_basic_setup(void) -> do_initcalls(void) -> do_one_initcall(*fn); do_one_initcall(*fn) - calls each function. And do_basic_setup() is called inside the initialization sequence (kernel_init()). > > Thank you. > > Regards, > Sumeet > -- Thanks, Nilesh _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
